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authorLinus Torvalds <torvalds@linux-foundation.org>2008-05-02 14:03:08 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-02 14:03:08 -0400
commit1be1d6b7f3f6e3a87f872dd5e7a867d03d8a6851 (patch)
tree102ef63f93d7d6d8400fc88158cc859a92a2b44f
parent37b6a04fd9fc887bbcc1a27d9354a5e7a5a4cdd8 (diff)
parent62fd2cac5bf5cf9e6fcb2fc40b32e7271e605c53 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (32 commits) USB GADGET/PERIPHERAL: g_file_storage Bulk-Only Transport compliance, clear-feature ignore USB GADGET/PERIPHERAL: g_file_storage Bulk-Only Transport compliance usb_serial: some coding style fixes USB: Remove redundant dependencies on USB_ATM. USB: UHCI: disable remote wakeup when it's not needed USB: OHCI: work around bogus compiler warning USB: add Cypress c67x00 OTG controller HCD driver USB: add Cypress c67x00 OTG controller core driver USB: add Cypress c67x00 low level interface code USB: airprime: unlock mutex instead of trying to lock it again USB: storage: Update mailling list address USB: storage: UNUSUAL_DEVS() for PanDigital Picture frame. USB: Add the USB 2.0 extension descriptor. USB: add more FTDI device ids USB: fix cannot work usb storage when using ohci-sm501 usb: gadget zero timer init fix usb: gadget zero style fixups (mostly whitespace) usb serial gadget: CDC ACM fixes usb: pxa27x_udc driver USB: INTOVA Pixtreme camera mass storage device ...
Diffstat
-rw-r--r--MAINTAINERS6
-rw-r--r--drivers/block/ub.c63
-rw-r--r--drivers/usb/Makefile2
-rw-r--r--drivers/usb/atm/Kconfig4
-rw-r--r--drivers/usb/c67x00/Makefile9
-rw-r--r--drivers/usb/c67x00/c67x00-drv.c243
-rw-r--r--drivers/usb/c67x00/c67x00-hcd.c412
-rw-r--r--drivers/usb/c67x00/c67x00-hcd.h133
-rw-r--r--drivers/usb/c67x00/c67x00-ll-hpi.c480
-rw-r--r--drivers/usb/c67x00/c67x00-sched.c1170
-rw-r--r--drivers/usb/c67x00/c67x00.h294
-rw-r--r--drivers/usb/core/message.c4
-rw-r--r--drivers/usb/gadget/Kconfig20
-rw-r--r--drivers/usb/gadget/Makefile1
-rw-r--r--drivers/usb/gadget/ether.c8
-rw-r--r--drivers/usb/gadget/file_storage.c25
-rw-r--r--drivers/usb/gadget/pxa27x_udc.c2404
-rw-r--r--drivers/usb/gadget/pxa27x_udc.h487
-rw-r--r--drivers/usb/gadget/serial.c90
-rw-r--r--drivers/usb/gadget/zero.c370
-rw-r--r--drivers/usb/host/Kconfig39
-rw-r--r--drivers/usb/host/Makefile4
-rw-r--r--drivers/usb/host/isp1760-hcd.c2231
-rw-r--r--drivers/usb/host/isp1760-hcd.h206
-rw-r--r--drivers/usb/host/isp1760-if.c298
-rw-r--r--drivers/usb/host/ohci-hub.c2
-rw-r--r--drivers/usb/host/uhci-hcd.c74
-rw-r--r--drivers/usb/host/uhci-hcd.h5
-rw-r--r--drivers/usb/misc/ldusb.c28
-rw-r--r--drivers/usb/misc/usbtest.c276
-rw-r--r--drivers/usb/serial/aircable.c98
-rw-r--r--drivers/usb/serial/airprime.c63
-rw-r--r--drivers/usb/serial/ark3116.c54
-rw-r--r--drivers/usb/serial/ch341.c2
-rw-r--r--drivers/usb/serial/ftdi_sio.c8
-rw-r--r--drivers/usb/serial/ftdi_sio.h11
-rw-r--r--drivers/usb/serial/mos7840.c5
-rw-r--r--drivers/usb/storage/Kconfig3
-rw-r--r--drivers/usb/storage/libusual.c2
-rw-r--r--drivers/usb/storage/onetouch.c4
-rw-r--r--drivers/usb/storage/unusual_devs.h28
-rw-r--r--drivers/usb/storage/usb.c3
-rw-r--r--include/linux/usb/c67x00.h48
-rw-r--r--include/linux/usb/ch9.h12
-rw-r--r--include/linux/usb/gadget.h21
45 files changed, 9213 insertions, 537 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index cae9001a670d..93547d3d04b9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4051,6 +4051,12 @@ L: linux-usb@vger.kernel.org
4051S: Maintained 4051S: Maintained
4052W: http://www.kroah.com/linux-usb/ 4052W: http://www.kroah.com/linux-usb/
4053 4053
4054USB CYPRESS C67X00 DRIVER
4055P: Peter Korsgaard
4056M: jacmet@sunsite.dk
4057L: linux-usb@vger.kernel.org
4058S: Maintained
4059
4054USB DAVICOM DM9601 DRIVER 4060USB DAVICOM DM9601 DRIVER
4055P: Peter Korsgaard 4061P: Peter Korsgaard
4056M: jacmet@sunsite.dk 4062M: jacmet@sunsite.dk
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index e322cce8c12d..3a281ef11ffa 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -205,6 +205,7 @@ struct ub_scsi_cmd {
205 unsigned char key, asc, ascq; /* May be valid if error==-EIO */ 205 unsigned char key, asc, ascq; /* May be valid if error==-EIO */
206 206
207 int stat_count; /* Retries getting status. */ 207 int stat_count; /* Retries getting status. */
208 unsigned int timeo; /* jiffies until rq->timeout changes */
208 209
209 unsigned int len; /* Requested length */ 210 unsigned int len; /* Requested length */
210 unsigned int current_sg; 211 unsigned int current_sg;
@@ -318,6 +319,7 @@ struct ub_dev {
318 int openc; /* protected by ub_lock! */ 319 int openc; /* protected by ub_lock! */
319 /* kref is too implicit for our taste */ 320 /* kref is too implicit for our taste */
320 int reset; /* Reset is running */ 321 int reset; /* Reset is running */
322 int bad_resid;
321 unsigned int tagcnt; 323 unsigned int tagcnt;
322 char name[12]; 324 char name[12];
323 struct usb_device *dev; 325 struct usb_device *dev;
@@ -764,6 +766,12 @@ static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun,
764 cmd->cdb_len = rq->cmd_len; 766 cmd->cdb_len = rq->cmd_len;
765 767
766 cmd->len = rq->data_len; 768 cmd->len = rq->data_len;
769
770 /*
771 * To reapply this to every URB is not as incorrect as it looks.
772 * In return, we avoid any complicated tracking calculations.
773 */
774 cmd->timeo = rq->timeout;
767} 775}
768 776
769static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd) 777static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
@@ -785,10 +793,6 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
785 scsi_status = 0; 793 scsi_status = 0;
786 } else { 794 } else {
787 if (cmd->act_len != cmd->len) { 795 if (cmd->act_len != cmd->len) {
788 if ((cmd->key == MEDIUM_ERROR ||
789 cmd->key == UNIT_ATTENTION) &&
790 ub_rw_cmd_retry(sc, lun, urq, cmd) == 0)
791 return;
792 scsi_status = SAM_STAT_CHECK_CONDITION; 796 scsi_status = SAM_STAT_CHECK_CONDITION;
793 } else { 797 } else {
794 scsi_status = 0; 798 scsi_status = 0;
@@ -804,7 +808,10 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
804 else 808 else
805 scsi_status = DID_ERROR << 16; 809 scsi_status = DID_ERROR << 16;
806 } else { 810 } else {
807 if (cmd->error == -EIO) { 811 if (cmd->error == -EIO &&
812 (cmd->key == 0 ||
813 cmd->key == MEDIUM_ERROR ||
814 cmd->key == UNIT_ATTENTION)) {
808 if (ub_rw_cmd_retry(sc, lun, urq, cmd) == 0) 815 if (ub_rw_cmd_retry(sc, lun, urq, cmd) == 0)
809 return; 816 return;
810 } 817 }
@@ -1259,14 +1266,19 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1259 return; 1266 return;
1260 } 1267 }
1261 1268
1262 len = le32_to_cpu(bcs->Residue); 1269 if (!sc->bad_resid) {
1263 if (len != cmd->len - cmd->act_len) { 1270 len = le32_to_cpu(bcs->Residue);
1264 /* 1271 if (len != cmd->len - cmd->act_len) {
1265 * It is all right to transfer less, the caller has 1272 /*
1266 * to check. But it's not all right if the device 1273 * Only start ignoring if this cmd ended well.
1267 * counts disagree with our counts. 1274 */
1268 */ 1275 if (cmd->len == cmd->act_len) {
1269 goto Bad_End; 1276 printk(KERN_NOTICE "%s: "
1277 "bad residual %d of %d, ignoring\n",
1278 sc->name, len, cmd->len);
1279 sc->bad_resid = 1;
1280 }
1281 }
1270 } 1282 }
1271 1283
1272 switch (bcs->Status) { 1284 switch (bcs->Status) {
@@ -1297,8 +1309,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1297 ub_state_done(sc, cmd, -EIO); 1309 ub_state_done(sc, cmd, -EIO);
1298 1310
1299 } else { 1311 } else {
1300 printk(KERN_WARNING "%s: " 1312 printk(KERN_WARNING "%s: wrong command state %d\n",
1301 "wrong command state %d\n",
1302 sc->name, cmd->state); 1313 sc->name, cmd->state);
1303 ub_state_done(sc, cmd, -EINVAL); 1314 ub_state_done(sc, cmd, -EINVAL);
1304 return; 1315 return;
@@ -1336,7 +1347,10 @@ static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1336 return; 1347 return;
1337 } 1348 }
1338 1349
1339 sc->work_timer.expires = jiffies + UB_DATA_TIMEOUT; 1350 if (cmd->timeo)
1351 sc->work_timer.expires = jiffies + cmd->timeo;
1352 else
1353 sc->work_timer.expires = jiffies + UB_DATA_TIMEOUT;
1340 add_timer(&sc->work_timer); 1354 add_timer(&sc->work_timer);
1341 1355
1342 cmd->state = UB_CMDST_DATA; 1356 cmd->state = UB_CMDST_DATA;
@@ -1376,7 +1390,10 @@ static int __ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
1376 return -1; 1390 return -1;
1377 } 1391 }
1378 1392
1379 sc->work_timer.expires = jiffies + UB_STAT_TIMEOUT; 1393 if (cmd->timeo)
1394 sc->work_timer.expires = jiffies + cmd->timeo;
1395 else
1396 sc->work_timer.expires = jiffies + UB_STAT_TIMEOUT;
1380 add_timer(&sc->work_timer); 1397 add_timer(&sc->work_timer);
1381 return 0; 1398 return 0;
1382} 1399}
@@ -1515,8 +1532,7 @@ static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd)
1515 return; 1532 return;
1516 } 1533 }
1517 if (cmd->state != UB_CMDST_SENSE) { 1534 if (cmd->state != UB_CMDST_SENSE) {
1518 printk(KERN_WARNING "%s: " 1535 printk(KERN_WARNING "%s: sense done with bad cmd state %d\n",
1519 "sense done with bad cmd state %d\n",
1520 sc->name, cmd->state); 1536 sc->name, cmd->state);
1521 return; 1537 return;
1522 } 1538 }
@@ -1720,7 +1736,7 @@ static int ub_bd_ioctl(struct inode *inode, struct file *filp,
1720} 1736}
1721 1737
1722/* 1738/*
1723 * This is called once a new disk was seen by the block layer or by ub_probe(). 1739 * This is called by check_disk_change if we reported a media change.
1724 * The main onjective here is to discover the features of the media such as 1740 * The main onjective here is to discover the features of the media such as
1725 * the capacity, read-only status, etc. USB storage generally does not 1741 * the capacity, read-only status, etc. USB storage generally does not
1726 * need to be spun up, but if we needed it, this would be the place. 1742 * need to be spun up, but if we needed it, this would be the place.
@@ -2136,8 +2152,7 @@ static int ub_get_pipes(struct ub_dev *sc, struct usb_device *dev,
2136 } 2152 }
2137 2153
2138 if (ep_in == NULL || ep_out == NULL) { 2154 if (ep_in == NULL || ep_out == NULL) {
2139 printk(KERN_NOTICE "%s: failed endpoint check\n", 2155 printk(KERN_NOTICE "%s: failed endpoint check\n", sc->name);
2140 sc->name);
2141 return -ENODEV; 2156 return -ENODEV;
2142 } 2157 }
2143 2158
@@ -2354,7 +2369,7 @@ static void ub_disconnect(struct usb_interface *intf)
2354 spin_unlock_irqrestore(&ub_lock, flags); 2369 spin_unlock_irqrestore(&ub_lock, flags);
2355 2370
2356 /* 2371 /*
2357 * Fence stall clearnings, operations triggered by unlinkings and so on. 2372 * Fence stall clearings, operations triggered by unlinkings and so on.
2358 * We do not attempt to unlink any URBs, because we do not trust the 2373 * We do not attempt to unlink any URBs, because we do not trust the
2359 * unlink paths in HC drivers. Also, we get -84 upon disconnect anyway. 2374 * unlink paths in HC drivers. Also, we get -84 upon disconnect anyway.
2360 */ 2375 */
@@ -2417,7 +2432,7 @@ static void ub_disconnect(struct usb_interface *intf)
2417 spin_unlock_irqrestore(sc->lock, flags); 2432 spin_unlock_irqrestore(sc->lock, flags);
2418 2433
2419 /* 2434 /*
2420 * There is virtually no chance that other CPU runs times so long 2435 * There is virtually no chance that other CPU runs a timeout so long
2421 * after ub_urb_complete should have called del_timer, but only if HCD 2436 * after ub_urb_complete should have called del_timer, but only if HCD
2422 * didn't forget to deliver a callback on unlink. 2437 * didn't forget to deliver a callback on unlink.
2423 */ 2438 */
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 516a6400db43..a419c42e880e 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -17,6 +17,8 @@ obj-$(CONFIG_USB_SL811_HCD) += host/
17obj-$(CONFIG_USB_U132_HCD) += host/ 17obj-$(CONFIG_USB_U132_HCD) += host/
18obj-$(CONFIG_USB_R8A66597_HCD) += host/ 18obj-$(CONFIG_USB_R8A66597_HCD) += host/
19 19
20obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
21
20obj-$(CONFIG_USB_ACM) += class/ 22obj-$(CONFIG_USB_ACM) += class/
21obj-$(CONFIG_USB_PRINTER) += class/ 23obj-$(CONFIG_USB_PRINTER) += class/
22 24
diff --git a/drivers/usb/atm/Kconfig b/drivers/usb/atm/Kconfig
index 86e64035edb0..be0b8daac9c7 100644
--- a/drivers/usb/atm/Kconfig
+++ b/drivers/usb/atm/Kconfig
@@ -19,7 +19,6 @@ if USB_ATM
19 19
20config USB_SPEEDTOUCH 20config USB_SPEEDTOUCH
21 tristate "Speedtouch USB support" 21 tristate "Speedtouch USB support"
22 depends on USB_ATM
23 select FW_LOADER 22 select FW_LOADER
24 help 23 help
25 Say Y here if you have an SpeedTouch USB or SpeedTouch 330 24 Say Y here if you have an SpeedTouch USB or SpeedTouch 330
@@ -32,7 +31,6 @@ config USB_SPEEDTOUCH
32 31
33config USB_CXACRU 32config USB_CXACRU
34 tristate "Conexant AccessRunner USB support" 33 tristate "Conexant AccessRunner USB support"
35 depends on USB_ATM
36 select FW_LOADER 34 select FW_LOADER
37 help 35 help
38 Say Y here if you have an ADSL USB modem based on the Conexant 36 Say Y here if you have an ADSL USB modem based on the Conexant
@@ -45,7 +43,6 @@ config USB_CXACRU
45 43
46config USB_UEAGLEATM 44config USB_UEAGLEATM
47 tristate "ADI 930 and eagle USB DSL modem" 45 tristate "ADI 930 and eagle USB DSL modem"
48 depends on USB_ATM
49 select FW_LOADER 46 select FW_LOADER
50 help 47 help
51 Say Y here if you have an ADSL USB modem based on the ADI 930 48 Say Y here if you have an ADSL USB modem based on the ADI 930
@@ -58,7 +55,6 @@ config USB_UEAGLEATM
58 55
59config USB_XUSBATM 56config USB_XUSBATM
60 tristate "Other USB DSL modem support" 57 tristate "Other USB DSL modem support"
61 depends on USB_ATM
62 help 58 help
63 Say Y here if you have a DSL USB modem not explicitly supported by 59 Say Y here if you have a DSL USB modem not explicitly supported by
64 another USB DSL drivers. In order to use your modem you will need to 60 another USB DSL drivers. In order to use your modem you will need to
diff --git a/drivers/usb/c67x00/Makefile b/drivers/usb/c67x00/Makefile
new file mode 100644
index 000000000000..868bc41b5980
--- /dev/null
+++ b/drivers/usb/c67x00/Makefile
@@ -0,0 +1,9 @@
1#
2# Makefile for Cypress C67X00 USB Controller
3#
4
5ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG
6
7obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o
8
9c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o
diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c
new file mode 100644
index 000000000000..5633bc5c8bf2
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00-drv.c
@@ -0,0 +1,243 @@
1/*
2 * c67x00-drv.c: Cypress C67X00 USB Common infrastructure
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24/*
25 * This file implements the common infrastructure for using the c67x00.
26 * It is both the link between the platform configuration and subdrivers and
27 * the link between the common hardware parts and the subdrivers (e.g.
28 * interrupt handling).
29 *
30 * The c67x00 has 2 SIE's (serial interface engine) wich can be configured
31 * to be host, device or OTG (with some limitations, E.G. only SIE1 can be OTG).
32 *
33 * Depending on the platform configuration, the SIE's are created and
34 * the corresponding subdriver is initialized (c67x00_probe_sie).
35 */
36
37#include <linux/device.h>
38#include <linux/io.h>
39#include <linux/list.h>
40#include <linux/usb.h>
41#include <linux/usb/c67x00.h>
42
43#include "c67x00.h"
44#include "c67x00-hcd.h"
45
46static void c67x00_probe_sie(struct c67x00_sie *sie,
47 struct c67x00_device *dev, int sie_num)
48{
49 spin_lock_init(&sie->lock);
50 sie->dev = dev;
51 sie->sie_num = sie_num;
52 sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num);
53
54 switch (sie->mode) {
55 case C67X00_SIE_HOST:
56 c67x00_hcd_probe(sie);
57 break;
58
59 case C67X00_SIE_UNUSED:
60 dev_info(sie_dev(sie),
61 "Not using SIE %d as requested\n", sie->sie_num);
62 break;
63
64 default:
65 dev_err(sie_dev(sie),
66 "Unsupported configuration: 0x%x for SIE %d\n",
67 sie->mode, sie->sie_num);
68 break;
69 }
70}
71
72static void c67x00_remove_sie(struct c67x00_sie *sie)
73{
74 switch (sie->mode) {
75 case C67X00_SIE_HOST:
76 c67x00_hcd_remove(sie);
77 break;
78
79 default:
80 break;
81 }
82}
83
84static irqreturn_t c67x00_irq(int irq, void *__dev)
85{
86 struct c67x00_device *c67x00 = __dev;
87 struct c67x00_sie *sie;
88 u16 msg, int_status;
89 int i, count = 8;
90
91 int_status = c67x00_ll_hpi_status(c67x00);
92 if (!int_status)
93 return IRQ_NONE;
94
95 while (int_status != 0 && (count-- >= 0)) {
96 c67x00_ll_irq(c67x00, int_status);
97 for (i = 0; i < C67X00_SIES; i++) {
98 sie = &c67x00->sie[i];
99 msg = 0;
100 if (int_status & SIEMSG_FLG(i))
101 msg = c67x00_ll_fetch_siemsg(c67x00, i);
102 if (sie->irq)
103 sie->irq(sie, int_status, msg);
104 }
105 int_status = c67x00_ll_hpi_status(c67x00);
106 }
107
108 if (int_status)
109 dev_warn(&c67x00->pdev->dev, "Not all interrupts handled! "
110 "status = 0x%04x\n", int_status);
111
112 return IRQ_HANDLED;
113}
114
115/* ------------------------------------------------------------------------- */
116
117static int __devinit c67x00_drv_probe(struct platform_device *pdev)
118{
119 struct c67x00_device *c67x00;
120 struct c67x00_platform_data *pdata;
121 struct resource *res, *res2;
122 int ret, i;
123
124 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
125 if (!res)
126 return -ENODEV;
127
128 res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
129 if (!res2)
130 return -ENODEV;
131
132 pdata = pdev->dev.platform_data;
133 if (!pdata)
134 return -ENODEV;
135
136 c67x00 = kzalloc(sizeof(*c67x00), GFP_KERNEL);
137 if (!c67x00)
138 return -ENOMEM;
139
140 if (!request_mem_region(res->start, res->end - res->start + 1,
141 pdev->name)) {
142 dev_err(&pdev->dev, "Memory region busy\n");
143 ret = -EBUSY;
144 goto request_mem_failed;
145 }
146 c67x00->hpi.base = ioremap(res->start, res->end - res->start + 1);
147 if (!c67x00->hpi.base) {
148 dev_err(&pdev->dev, "Unable to map HPI registers\n");
149 ret = -EIO;
150 goto map_failed;
151 }
152
153 spin_lock_init(&c67x00->hpi.lock);
154 c67x00->hpi.regstep = pdata->hpi_regstep;
155 c67x00->pdata = pdev->dev.platform_data;
156 c67x00->pdev = pdev;
157
158 c67x00_ll_init(c67x00);
159 c67x00_ll_hpi_reg_init(c67x00);
160
161 ret = request_irq(res2->start, c67x00_irq, 0, pdev->name, c67x00);
162 if (ret) {
163 dev_err(&pdev->dev, "Cannot claim IRQ\n");
164 goto request_irq_failed;
165 }
166
167 ret = c67x00_ll_reset(c67x00);
168 if (ret) {
169 dev_err(&pdev->dev, "Device reset failed\n");
170 goto reset_failed;
171 }
172
173 for (i = 0; i < C67X00_SIES; i++)
174 c67x00_probe_sie(&c67x00->sie[i], c67x00, i);
175
176 platform_set_drvdata(pdev, c67x00);
177
178 return 0;
179
180 reset_failed:
181 free_irq(res2->start, c67x00);
182 request_irq_failed:
183 iounmap(c67x00->hpi.base);
184 map_failed:
185 release_mem_region(res->start, res->end - res->start + 1);
186 request_mem_failed:
187 kfree(c67x00);
188
189 return ret;
190}
191
192static int __devexit c67x00_drv_remove(struct platform_device *pdev)
193{
194 struct c67x00_device *c67x00 = platform_get_drvdata(pdev);
195 struct resource *res;
196 int i;
197
198 for (i = 0; i < C67X00_SIES; i++)
199 c67x00_remove_sie(&c67x00->sie[i]);
200
201 c67x00_ll_release(c67x00);
202
203 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
204 if (res)
205 free_irq(res->start, c67x00);
206
207 iounmap(c67x00->hpi.base);
208
209 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
210 if (res)
211 release_mem_region(res->start, res->end - res->start + 1);
212
213 kfree(c67x00);
214
215 return 0;
216}
217
218static struct platform_driver c67x00_driver = {
219 .probe = c67x00_drv_probe,
220 .remove = __devexit_p(c67x00_drv_remove),
221 .driver = {
222 .owner = THIS_MODULE,
223 .name = "c67x00",
224 },
225};
226MODULE_ALIAS("platform:c67x00");
227
228static int __init c67x00_init(void)
229{
230 return platform_driver_register(&c67x00_driver);
231}
232
233static void __exit c67x00_exit(void)
234{
235 platform_driver_unregister(&c67x00_driver);
236}
237
238module_init(c67x00_init);
239module_exit(c67x00_exit);
240
241MODULE_AUTHOR("Peter Korsgaard, Jan Veldeman, Grant Likely");
242MODULE_DESCRIPTION("Cypress C67X00 USB Controller Driver");
243MODULE_LICENSE("GPL");
diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c
new file mode 100644
index 000000000000..a22b887f4e9e
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00-hcd.c
@@ -0,0 +1,412 @@
1/*
2 * c67x00-hcd.c: Cypress C67X00 USB Host Controller Driver
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24#include <linux/device.h>
25#include <linux/platform_device.h>
26#include <linux/usb.h>
27
28#include "c67x00.h"
29#include "c67x00-hcd.h"
30
31/* --------------------------------------------------------------------------
32 * Root Hub Support
33 */
34
35static __u8 c67x00_hub_des[] = {
36 0x09, /* __u8 bLength; */
37 0x29, /* __u8 bDescriptorType; Hub-descriptor */
38 0x02, /* __u8 bNbrPorts; */
39 0x00, /* __u16 wHubCharacteristics; */
40 0x00, /* (per-port OC, no power switching) */
41 0x32, /* __u8 bPwrOn2pwrGood; 2ms */
42 0x00, /* __u8 bHubContrCurrent; 0 mA */
43 0x00, /* __u8 DeviceRemovable; ** 7 Ports max ** */
44 0xff, /* __u8 PortPwrCtrlMask; ** 7 ports max ** */
45};
46
47static void c67x00_hub_reset_host_port(struct c67x00_sie *sie, int port)
48{
49 struct c67x00_hcd *c67x00 = sie->private_data;
50 unsigned long flags;
51
52 c67x00_ll_husb_reset(sie, port);
53
54 spin_lock_irqsave(&c67x00->lock, flags);
55 c67x00_ll_husb_reset_port(sie, port);
56 spin_unlock_irqrestore(&c67x00->lock, flags);
57
58 c67x00_ll_set_husb_eot(sie->dev, DEFAULT_EOT);
59}
60
61static int c67x00_hub_status_data(struct usb_hcd *hcd, char *buf)
62{
63 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
64 struct c67x00_sie *sie = c67x00->sie;
65 u16 status;
66 int i;
67
68 *buf = 0;
69 status = c67x00_ll_usb_get_status(sie);
70 for (i = 0; i < C67X00_PORTS; i++)
71 if (status & PORT_CONNECT_CHANGE(i))
72 *buf |= (1 << i);
73
74 /* bit 0 denotes hub change, b1..n port change */
75 *buf <<= 1;
76
77 return !!*buf;
78}
79
80static int c67x00_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
81 u16 wIndex, char *buf, u16 wLength)
82{
83 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
84 struct c67x00_sie *sie = c67x00->sie;
85 u16 status, usb_status;
86 int len = 0;
87 unsigned int port = wIndex-1;
88 u16 wPortChange, wPortStatus;
89
90 switch (typeReq) {
91
92 case GetHubStatus:
93 *(__le32 *) buf = cpu_to_le32(0);
94 len = 4; /* hub power */
95 break;
96
97 case GetPortStatus:
98 if (wIndex > C67X00_PORTS)
99 return -EPIPE;
100
101 status = c67x00_ll_usb_get_status(sie);
102 usb_status = c67x00_ll_get_usb_ctl(sie);
103
104 wPortChange = 0;
105 if (status & PORT_CONNECT_CHANGE(port))
106 wPortChange |= USB_PORT_STAT_C_CONNECTION;
107
108 wPortStatus = USB_PORT_STAT_POWER;
109 if (!(status & PORT_SE0_STATUS(port)))
110 wPortStatus |= USB_PORT_STAT_CONNECTION;
111 if (usb_status & LOW_SPEED_PORT(port)) {
112 wPortStatus |= USB_PORT_STAT_LOW_SPEED;
113 c67x00->low_speed_ports |= (1 << port);
114 } else
115 c67x00->low_speed_ports &= ~(1 << port);
116
117 if (usb_status & SOF_EOP_EN(port))
118 wPortStatus |= USB_PORT_STAT_ENABLE;
119
120 *(__le16 *) buf = cpu_to_le16(wPortStatus);
121 *(__le16 *) (buf + 2) = cpu_to_le16(wPortChange);
122 len = 4;
123 break;
124
125 case SetHubFeature: /* We don't implement these */
126 case ClearHubFeature:
127 switch (wValue) {
128 case C_HUB_OVER_CURRENT:
129 case C_HUB_LOCAL_POWER:
130 len = 0;
131 break;
132
133 default:
134 return -EPIPE;
135 }
136 break;
137
138 case SetPortFeature:
139 if (wIndex > C67X00_PORTS)
140 return -EPIPE;
141
142 switch (wValue) {
143 case USB_PORT_FEAT_SUSPEND:
144 dev_dbg(c67x00_hcd_dev(c67x00),
145 "SetPortFeature %d (SUSPEND)\n", port);
146 len = 0;
147 break;
148
149 case USB_PORT_FEAT_RESET:
150 c67x00_hub_reset_host_port(sie, port);
151 len = 0;
152 break;
153
154 case USB_PORT_FEAT_POWER:
155 /* Power always enabled */
156 len = 0;
157 break;
158
159 default:
160 dev_dbg(c67x00_hcd_dev(c67x00),
161 "%s: SetPortFeature %d (0x%04x) Error!\n",
162 __func__, port, wValue);
163 return -EPIPE;
164 }
165 break;
166
167 case ClearPortFeature:
168 if (wIndex > C67X00_PORTS)
169 return -EPIPE;
170
171 switch (wValue) {
172 case USB_PORT_FEAT_ENABLE:
173 /* Reset the port so that the c67x00 also notices the
174 * disconnect */
175 c67x00_hub_reset_host_port(sie, port);
176 len = 0;
177 break;
178
179 case USB_PORT_FEAT_C_ENABLE:
180 dev_dbg(c67x00_hcd_dev(c67x00),
181 "ClearPortFeature (%d): C_ENABLE\n", port);
182 len = 0;
183 break;
184
185 case USB_PORT_FEAT_SUSPEND:
186 dev_dbg(c67x00_hcd_dev(c67x00),
187 "ClearPortFeature (%d): SUSPEND\n", port);
188 len = 0;
189 break;
190
191 case USB_PORT_FEAT_C_SUSPEND:
192 dev_dbg(c67x00_hcd_dev(c67x00),
193 "ClearPortFeature (%d): C_SUSPEND\n", port);
194 len = 0;
195 break;
196
197 case USB_PORT_FEAT_POWER:
198 dev_dbg(c67x00_hcd_dev(c67x00),
199 "ClearPortFeature (%d): POWER\n", port);
200 return -EPIPE;
201
202 case USB_PORT_FEAT_C_CONNECTION:
203 c67x00_ll_usb_clear_status(sie,
204 PORT_CONNECT_CHANGE(port));
205 len = 0;
206 break;
207
208 case USB_PORT_FEAT_C_OVER_CURRENT:
209 dev_dbg(c67x00_hcd_dev(c67x00),
210 "ClearPortFeature (%d): OVER_CURRENT\n", port);
211 len = 0;
212 break;
213
214 case USB_PORT_FEAT_C_RESET:
215 dev_dbg(c67x00_hcd_dev(c67x00),
216 "ClearPortFeature (%d): C_RESET\n", port);
217 len = 0;
218 break;
219
220 default:
221 dev_dbg(c67x00_hcd_dev(c67x00),
222 "%s: ClearPortFeature %d (0x%04x) Error!\n",
223 __func__, port, wValue);
224 return -EPIPE;
225 }
226 break;
227
228 case GetHubDescriptor:
229 len = min_t(unsigned int, sizeof(c67x00_hub_des), wLength);
230 memcpy(buf, c67x00_hub_des, len);
231 break;
232
233 default:
234 dev_dbg(c67x00_hcd_dev(c67x00), "%s: unknown\n", __func__);
235 return -EPIPE;
236 }
237
238 return 0;
239}
240
241/* ---------------------------------------------------------------------
242 * Main part of host controller driver
243 */
244
245/**
246 * c67x00_hcd_irq
247 *
248 * This function is called from the interrupt handler in c67x00-drv.c
249 */
250static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
251{
252 struct c67x00_hcd *c67x00 = sie->private_data;
253 struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
254
255 /* Handle sie message flags */
256 if (msg) {
257 if (msg & HUSB_TDListDone)
258 c67x00_sched_kick(c67x00);
259 else
260 dev_warn(c67x00_hcd_dev(c67x00),
261 "Unknown SIE msg flag(s): 0x%04x\n", msg);
262 }
263
264 if (unlikely(hcd->state == HC_STATE_HALT))
265 return;
266
267 if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
268 return;
269
270 /* Handle Start of frame events */
271 if (int_status & SOFEOP_FLG(sie->sie_num)) {
272 c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
273 c67x00_sched_kick(c67x00);
274 set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
275 }
276}
277
278/**
279 * c67x00_hcd_start: Host controller start hook
280 */
281static int c67x00_hcd_start(struct usb_hcd *hcd)
282{
283 hcd->uses_new_polling = 1;
284 hcd->state = HC_STATE_RUNNING;
285 hcd->poll_rh = 1;
286
287 return 0;
288}
289
290/**
291 * c67x00_hcd_stop: Host controller stop hook
292 */
293static void c67x00_hcd_stop(struct usb_hcd *hcd)
294{
295 /* Nothing to do */
296}
297
298static int c67x00_hcd_get_frame(struct usb_hcd *hcd)
299{
300 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
301 u16 temp_val;
302
303 dev_dbg(c67x00_hcd_dev(c67x00), "%s\n", __func__);
304 temp_val = c67x00_ll_husb_get_frame(c67x00->sie);
305 temp_val &= HOST_FRAME_MASK;
306 return temp_val ? (temp_val - 1) : HOST_FRAME_MASK;
307}
308
309static struct hc_driver c67x00_hc_driver = {
310 .description = "c67x00-hcd",
311 .product_desc = "Cypress C67X00 Host Controller",
312 .hcd_priv_size = sizeof(struct c67x00_hcd),
313 .flags = HCD_USB11 | HCD_MEMORY,
314
315 /*
316 * basic lifecycle operations
317 */
318 .start = c67x00_hcd_start,
319 .stop = c67x00_hcd_stop,
320
321 /*
322 * managing i/o requests and associated device resources
323 */
324 .urb_enqueue = c67x00_urb_enqueue,
325 .urb_dequeue = c67x00_urb_dequeue,
326 .endpoint_disable = c67x00_endpoint_disable,
327
328 /*
329 * scheduling support
330 */
331 .get_frame_number = c67x00_hcd_get_frame,
332
333 /*
334 * root hub support
335 */
336 .hub_status_data = c67x00_hub_status_data,
337 .hub_control = c67x00_hub_control,
338};
339
340/* ---------------------------------------------------------------------
341 * Setup/Teardown routines
342 */
343
344int c67x00_hcd_probe(struct c67x00_sie *sie)
345{
346 struct c67x00_hcd *c67x00;
347 struct usb_hcd *hcd;
348 unsigned long flags;
349 int retval;
350
351 if (usb_disabled())
352 return -ENODEV;
353
354 hcd = usb_create_hcd(&c67x00_hc_driver, sie_dev(sie), "c67x00_sie");
355 if (!hcd) {
356 retval = -ENOMEM;
357 goto err0;
358 }
359 c67x00 = hcd_to_c67x00_hcd(hcd);
360
361 spin_lock_init(&c67x00->lock);
362 c67x00->sie = sie;
363
364 INIT_LIST_HEAD(&c67x00->list[PIPE_ISOCHRONOUS]);
365 INIT_LIST_HEAD(&c67x00->list[PIPE_INTERRUPT]);
366 INIT_LIST_HEAD(&c67x00->list[PIPE_CONTROL]);
367 INIT_LIST_HEAD(&c67x00->list[PIPE_BULK]);
368 c67x00->urb_count = 0;
369 INIT_LIST_HEAD(&c67x00->td_list);
370 c67x00->td_base_addr = CY_HCD_BUF_ADDR + SIE_TD_OFFSET(sie->sie_num);
371 c67x00->buf_base_addr = CY_HCD_BUF_ADDR + SIE_BUF_OFFSET(sie->sie_num);
372 c67x00->max_frame_bw = MAX_FRAME_BW_STD;
373
374 c67x00_ll_husb_init_host_port(sie);
375
376 init_completion(&c67x00->endpoint_disable);
377 retval = c67x00_sched_start_scheduler(c67x00);
378 if (retval)
379 goto err1;
380
381 retval = usb_add_hcd(hcd, 0, 0);
382 if (retval) {
383 dev_dbg(sie_dev(sie), "%s: usb_add_hcd returned %d\n",
384 __func__, retval);
385 goto err2;
386 }
387
388 spin_lock_irqsave(&sie->lock, flags);
389 sie->private_data = c67x00;
390 sie->irq = c67x00_hcd_irq;
391 spin_unlock_irqrestore(&sie->lock, flags);
392
393 return retval;
394
395 err2:
396 c67x00_sched_stop_scheduler(c67x00);
397 err1:
398 usb_put_hcd(hcd);
399 err0:
400 return retval;
401}
402
403/* may be called with controller, bus, and devices active */
404void c67x00_hcd_remove(struct c67x00_sie *sie)
405{
406 struct c67x00_hcd *c67x00 = sie->private_data;
407 struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
408
409 c67x00_sched_stop_scheduler(c67x00);
410 usb_remove_hcd(hcd);
411 usb_put_hcd(hcd);
412}
diff --git a/drivers/usb/c67x00/c67x00-hcd.h b/drivers/usb/c67x00/c67x00-hcd.h
new file mode 100644
index 000000000000..e8c6d94b2514
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00-hcd.h
@@ -0,0 +1,133 @@
1/*
2 * c67x00-hcd.h: Cypress C67X00 USB HCD
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24#ifndef _USB_C67X00_HCD_H
25#define _USB_C67X00_HCD_H
26
27#include <linux/kernel.h>
28#include <linux/spinlock.h>
29#include <linux/list.h>
30#include <linux/usb.h>
31#include "../core/hcd.h"
32#include "c67x00.h"
33
34/*
35 * The following parameters depend on the CPU speed, bus speed, ...
36 * These can be tuned for specific use cases, e.g. if isochronous transfers
37 * are very important, bandwith can be sacrificed to guarantee that the
38 * 1ms deadline will be met.
39 * If bulk transfers are important, the MAX_FRAME_BW can be increased,
40 * but some (or many) isochronous deadlines might not be met.
41 *
42 * The values are specified in bittime.
43 */
44
45/*
46 * The current implementation switches between _STD (default) and _ISO (when
47 * isochronous transfers are scheduled), in order to optimize the throughput
48 * in normal cicrumstances, but also provide good isochronous behaviour.
49 *
50 * Bandwidth is described in bit time so with a 12MHz USB clock and 1ms
51 * frames; there are 12000 bit times per frame.
52 */
53
54#define TOTAL_FRAME_BW 12000
55#define DEFAULT_EOT 2250
56
57#define MAX_FRAME_BW_STD (TOTAL_FRAME_BW - DEFAULT_EOT)
58#define MAX_FRAME_BW_ISO 2400
59
60/*
61 * Periodic transfers may only use 90% of the full frame, but as
62 * we currently don't even use 90% of the full frame, we may
63 * use the full usable time for periodic transfers.
64 */
65#define MAX_PERIODIC_BW(full_bw) full_bw
66
67/* -------------------------------------------------------------------------- */
68
69struct c67x00_hcd {
70 spinlock_t lock;
71 struct c67x00_sie *sie;
72 unsigned int low_speed_ports; /* bitmask of low speed ports */
73 unsigned int urb_count;
74 unsigned int urb_iso_count;
75
76 struct list_head list[4]; /* iso, int, ctrl, bulk */
77#if PIPE_BULK != 3
78#error "Sanity check failed, this code presumes PIPE_... to range from 0 to 3"
79#endif
80
81 /* USB bandwidth allocated to td_list */
82 int bandwidth_allocated;
83 /* USB bandwidth allocated for isoc/int transfer */
84 int periodic_bw_allocated;
85 struct list_head td_list;
86 int max_frame_bw;
87
88 u16 td_base_addr;
89 u16 buf_base_addr;
90 u16 next_td_addr;
91 u16 next_buf_addr;
92
93 struct tasklet_struct tasklet;
94
95 struct completion endpoint_disable;
96
97 u16 current_frame;
98 u16 last_frame;
99};
100
101static inline struct c67x00_hcd *hcd_to_c67x00_hcd(struct usb_hcd *hcd)
102{
103 return (struct c67x00_hcd *)(hcd->hcd_priv);
104}
105
106static inline struct usb_hcd *c67x00_hcd_to_hcd(struct c67x00_hcd *c67x00)
107{
108 return container_of((void *)c67x00, struct usb_hcd, hcd_priv);
109}
110
111/* ---------------------------------------------------------------------
112 * Functions used by c67x00-drv
113 */
114
115int c67x00_hcd_probe(struct c67x00_sie *sie);
116void c67x00_hcd_remove(struct c67x00_sie *sie);
117
118/* ---------------------------------------------------------------------
119 * Transfer Descriptor scheduling functions
120 */
121int c67x00_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
122int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
123void c67x00_endpoint_disable(struct usb_hcd *hcd,
124 struct usb_host_endpoint *ep);
125
126void c67x00_hcd_msg_received(struct c67x00_sie *sie, u16 msg);
127void c67x00_sched_kick(struct c67x00_hcd *c67x00);
128int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00);
129void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00);
130
131#define c67x00_hcd_dev(x) (c67x00_hcd_to_hcd(x)->self.controller)
132
133#endif /* _USB_C67X00_HCD_H */
diff --git a/drivers/usb/c67x00/c67x00-ll-hpi.c b/drivers/usb/c67x00/c67x00-ll-hpi.c
new file mode 100644
index 000000000000..f3430b372f09
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -0,0 +1,480 @@
1/*
2 * c67x00-ll-hpi.c: Cypress C67X00 USB Low level interface using HPI
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24#include <asm/byteorder.h>
25#include <linux/io.h>
26#include <linux/usb/c67x00.h>
27#include "c67x00.h"
28
29#define COMM_REGS 14
30
31struct c67x00_lcp_int_data {
32 u16 regs[COMM_REGS];
33};
34
35/* -------------------------------------------------------------------------- */
36/* Interface definitions */
37
38#define COMM_ACK 0x0FED
39#define COMM_NAK 0xDEAD
40
41#define COMM_RESET 0xFA50
42#define COMM_EXEC_INT 0xCE01
43#define COMM_INT_NUM 0x01C2
44
45/* Registers 0 to COMM_REGS-1 */
46#define COMM_R(x) (0x01C4 + 2 * (x))
47
48#define HUSB_SIE_pCurrentTDPtr(x) ((x) ? 0x01B2 : 0x01B0)
49#define HUSB_SIE_pTDListDone_Sem(x) ((x) ? 0x01B8 : 0x01B6)
50#define HUSB_pEOT 0x01B4
51
52/* Software interrupts */
53/* 114, 115: */
54#define HUSB_SIE_INIT_INT(x) ((x) ? 0x0073 : 0x0072)
55#define HUSB_RESET_INT 0x0074
56
57#define SUSB_INIT_INT 0x0071
58#define SUSB_INIT_INT_LOC (SUSB_INIT_INT * 2)
59
60/* -----------------------------------------------------------------------
61 * HPI implementation
62 *
63 * The c67x00 chip also support control via SPI or HSS serial
64 * interfaces. However, this driver assumes that register access can
65 * be performed from IRQ context. While this is a safe assuption with
66 * the HPI interface, it is not true for the serial interfaces.
67 */
68
69/* HPI registers */
70#define HPI_DATA 0
71#define HPI_MAILBOX 1
72#define HPI_ADDR 2
73#define HPI_STATUS 3
74
75static inline u16 hpi_read_reg(struct c67x00_device *dev, int reg)
76{
77 return __raw_readw(dev->hpi.base + reg * dev->hpi.regstep);
78}
79
80static inline void hpi_write_reg(struct c67x00_device *dev, int reg, u16 value)
81{
82 __raw_writew(value, dev->hpi.base + reg * dev->hpi.regstep);
83}
84
85static inline u16 hpi_read_word_nolock(struct c67x00_device *dev, u16 reg)
86{
87 hpi_write_reg(dev, HPI_ADDR, reg);
88 return hpi_read_reg(dev, HPI_DATA);
89}
90
91static u16 hpi_read_word(struct c67x00_device *dev, u16 reg)
92{
93 u16 value;
94 unsigned long flags;
95
96 spin_lock_irqsave(&dev->hpi.lock, flags);
97 value = hpi_read_word_nolock(dev, reg);
98 spin_unlock_irqrestore(&dev->hpi.lock, flags);
99
100 return value;
101}
102
103static void hpi_write_word_nolock(struct c67x00_device *dev, u16 reg, u16 value)
104{
105 hpi_write_reg(dev, HPI_ADDR, reg);
106 hpi_write_reg(dev, HPI_DATA, value);
107}
108
109static void hpi_write_word(struct c67x00_device *dev, u16 reg, u16 value)
110{
111 unsigned long flags;
112
113 spin_lock_irqsave(&dev->hpi.lock, flags);
114 hpi_write_word_nolock(dev, reg, value);
115 spin_unlock_irqrestore(&dev->hpi.lock, flags);
116}
117
118/*
119 * Only data is little endian, addr has cpu endianess
120 */
121static void hpi_write_words_le16(struct c67x00_device *dev, u16 addr,
122 u16 *data, u16 count)
123{
124 unsigned long flags;
125 int i;
126
127 spin_lock_irqsave(&dev->hpi.lock, flags);
128
129 hpi_write_reg(dev, HPI_ADDR, addr);
130 for (i = 0; i < count; i++)
131 hpi_write_reg(dev, HPI_DATA, cpu_to_le16(*data++));
132
133 spin_unlock_irqrestore(&dev->hpi.lock, flags);
134}
135
136/*
137 * Only data is little endian, addr has cpu endianess
138 */
139static void hpi_read_words_le16(struct c67x00_device *dev, u16 addr,
140 u16 *data, u16 count)
141{
142 unsigned long flags;
143 int i;
144
145 spin_lock_irqsave(&dev->hpi.lock, flags);
146 hpi_write_reg(dev, HPI_ADDR, addr);
147 for (i = 0; i < count; i++)
148 *data++ = le16_to_cpu(hpi_read_reg(dev, HPI_DATA));
149
150 spin_unlock_irqrestore(&dev->hpi.lock, flags);
151}
152
153static void hpi_set_bits(struct c67x00_device *dev, u16 reg, u16 mask)
154{
155 u16 value;
156 unsigned long flags;
157
158 spin_lock_irqsave(&dev->hpi.lock, flags);
159 value = hpi_read_word_nolock(dev, reg);
160 hpi_write_word_nolock(dev, reg, value | mask);
161 spin_unlock_irqrestore(&dev->hpi.lock, flags);
162}
163
164static void hpi_clear_bits(struct c67x00_device *dev, u16 reg, u16 mask)
165{
166 u16 value;
167 unsigned long flags;
168
169 spin_lock_irqsave(&dev->hpi.lock, flags);
170 value = hpi_read_word_nolock(dev, reg);
171 hpi_write_word_nolock(dev, reg, value & ~mask);
172 spin_unlock_irqrestore(&dev->hpi.lock, flags);
173}
174
175static u16 hpi_recv_mbox(struct c67x00_device *dev)
176{
177 u16 value;
178 unsigned long flags;
179
180 spin_lock_irqsave(&dev->hpi.lock, flags);
181 value = hpi_read_reg(dev, HPI_MAILBOX);
182 spin_unlock_irqrestore(&dev->hpi.lock, flags);
183
184 return value;
185}
186
187static u16 hpi_send_mbox(struct c67x00_device *dev, u16 value)
188{
189 unsigned long flags;
190
191 spin_lock_irqsave(&dev->hpi.lock, flags);
192 hpi_write_reg(dev, HPI_MAILBOX, value);
193 spin_unlock_irqrestore(&dev->hpi.lock, flags);
194
195 return value;
196}
197
198u16 c67x00_ll_hpi_status(struct c67x00_device *dev)
199{
200 u16 value;
201 unsigned long flags;
202
203 spin_lock_irqsave(&dev->hpi.lock, flags);
204 value = hpi_read_reg(dev, HPI_STATUS);
205 spin_unlock_irqrestore(&dev->hpi.lock, flags);
206
207 return value;
208}
209
210void c67x00_ll_hpi_reg_init(struct c67x00_device *dev)
211{
212 int i;
213
214 hpi_recv_mbox(dev);
215 c67x00_ll_hpi_status(dev);
216 hpi_write_word(dev, HPI_IRQ_ROUTING_REG, 0);
217
218 for (i = 0; i < C67X00_SIES; i++) {
219 hpi_write_word(dev, SIEMSG_REG(i), 0);
220 hpi_read_word(dev, SIEMSG_REG(i));
221 }
222}
223
224void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie)
225{
226 hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
227 SOFEOP_TO_HPI_EN(sie->sie_num));
228}
229
230void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie)
231{
232 hpi_clear_bits(sie->dev, HPI_IRQ_ROUTING_REG,
233 SOFEOP_TO_HPI_EN(sie->sie_num));
234}
235
236/* -------------------------------------------------------------------------- */
237/* Transactions */
238
239static inline u16 ll_recv_msg(struct c67x00_device *dev)
240{
241 u16 res;
242
243 res = wait_for_completion_timeout(&dev->hpi.lcp.msg_received, 5 * HZ);
244 WARN_ON(!res);
245
246 return (res == 0) ? -EIO : 0;
247}
248
249/* -------------------------------------------------------------------------- */
250/* General functions */
251
252u16 c67x00_ll_fetch_siemsg(struct c67x00_device *dev, int sie_num)
253{
254 u16 val;
255
256 val = hpi_read_word(dev, SIEMSG_REG(sie_num));
257 /* clear register to allow next message */
258 hpi_write_word(dev, SIEMSG_REG(sie_num), 0);
259
260 return val;
261}
262
263u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie)
264{
265 return hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num));
266}
267
268/**
269 * c67x00_ll_usb_clear_status - clear the USB status bits
270 */
271void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits)
272{
273 hpi_write_word(sie->dev, USB_STAT_REG(sie->sie_num), bits);
274}
275
276u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie)
277{
278 return hpi_read_word(sie->dev, USB_STAT_REG(sie->sie_num));
279}
280
281/* -------------------------------------------------------------------------- */
282
283static int c67x00_comm_exec_int(struct c67x00_device *dev, u16 nr,
284 struct c67x00_lcp_int_data *data)
285{
286 int i, rc;
287
288 mutex_lock(&dev->hpi.lcp.mutex);
289 hpi_write_word(dev, COMM_INT_NUM, nr);
290 for (i = 0; i < COMM_REGS; i++)
291 hpi_write_word(dev, COMM_R(i), data->regs[i]);
292 hpi_send_mbox(dev, COMM_EXEC_INT);
293 rc = ll_recv_msg(dev);
294 mutex_unlock(&dev->hpi.lcp.mutex);
295
296 return rc;
297}
298
299/* -------------------------------------------------------------------------- */
300/* Host specific functions */
301
302void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value)
303{
304 mutex_lock(&dev->hpi.lcp.mutex);
305 hpi_write_word(dev, HUSB_pEOT, value);
306 mutex_unlock(&dev->hpi.lcp.mutex);
307}
308
309static inline void c67x00_ll_husb_sie_init(struct c67x00_sie *sie)
310{
311 struct c67x00_device *dev = sie->dev;
312 struct c67x00_lcp_int_data data;
313 int rc;
314
315 rc = c67x00_comm_exec_int(dev, HUSB_SIE_INIT_INT(sie->sie_num), &data);
316 BUG_ON(rc); /* No return path for error code; crash spectacularly */
317}
318
319void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port)
320{
321 struct c67x00_device *dev = sie->dev;
322 struct c67x00_lcp_int_data data;
323 int rc;
324
325 data.regs[0] = 50; /* Reset USB port for 50ms */
326 data.regs[1] = port | (sie->sie_num << 1);
327 rc = c67x00_comm_exec_int(dev, HUSB_RESET_INT, &data);
328 BUG_ON(rc); /* No return path for error code; crash spectacularly */
329}
330
331void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr)
332{
333 hpi_write_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num), addr);
334}
335
336u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie)
337{
338 return hpi_read_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num));
339}
340
341u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie)
342{
343 return hpi_read_word(sie->dev, HOST_FRAME_REG(sie->sie_num));
344}
345
346void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie)
347{
348 /* Set port into host mode */
349 hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), HOST_MODE);
350 c67x00_ll_husb_sie_init(sie);
351 /* Clear interrupts */
352 c67x00_ll_usb_clear_status(sie, HOST_STAT_MASK);
353 /* Check */
354 if (!(hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num)) & HOST_MODE))
355 dev_warn(sie_dev(sie),
356 "SIE %d not set to host mode\n", sie->sie_num);
357}
358
359void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port)
360{
361 /* Clear connect change */
362 c67x00_ll_usb_clear_status(sie, PORT_CONNECT_CHANGE(port));
363
364 /* Enable interrupts */
365 hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
366 SOFEOP_TO_CPU_EN(sie->sie_num));
367 hpi_set_bits(sie->dev, HOST_IRQ_EN_REG(sie->sie_num),
368 SOF_EOP_IRQ_EN | DONE_IRQ_EN);
369
370 /* Enable pull down transistors */
371 hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), PORT_RES_EN(port));
372}
373
374/* -------------------------------------------------------------------------- */
375
376void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
377{
378 if ((int_status & MBX_OUT_FLG) == 0)
379 return;
380
381 dev->hpi.lcp.last_msg = hpi_recv_mbox(dev);
382 complete(&dev->hpi.lcp.msg_received);
383}
384
385/* -------------------------------------------------------------------------- */
386
387int c67x00_ll_reset(struct c67x00_device *dev)
388{
389 int rc;
390
391 mutex_lock(&dev->hpi.lcp.mutex);
392 hpi_send_mbox(dev, COMM_RESET);
393 rc = ll_recv_msg(dev);
394 mutex_unlock(&dev->hpi.lcp.mutex);
395
396 return rc;
397}
398
399/* -------------------------------------------------------------------------- */
400
401/**
402 * c67x00_ll_write_mem_le16 - write into c67x00 memory
403 * Only data is little endian, addr has cpu endianess.
404 */
405void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
406 void *data, int len)
407{
408 u8 *buf = data;
409
410 /* Sanity check */
411 if (addr + len > 0xffff) {
412 dev_err(&dev->pdev->dev,
413 "Trying to write beyond writable region!\n");
414 return;
415 }
416
417 if (addr & 0x01) {
418 /* unaligned access */
419 u16 tmp;
420 tmp = hpi_read_word(dev, addr - 1);
421 tmp = (tmp & 0x00ff) | (*buf++ << 8);
422 hpi_write_word(dev, addr - 1, tmp);
423 addr++;
424 len--;
425 }
426
427 hpi_write_words_le16(dev, addr, (u16 *)buf, len / 2);
428 buf += len & ~0x01;
429 addr += len & ~0x01;
430 len &= 0x01;
431
432 if (len) {
433 u16 tmp;
434 tmp = hpi_read_word(dev, addr);
435 tmp = (tmp & 0xff00) | *buf;
436 hpi_write_word(dev, addr, tmp);
437 }
438}
439
440/**
441 * c67x00_ll_read_mem_le16 - read from c67x00 memory
442 * Only data is little endian, addr has cpu endianess.
443 */
444void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
445 void *data, int len)
446{
447 u8 *buf = data;
448
449 if (addr & 0x01) {
450 /* unaligned access */
451 u16 tmp;
452 tmp = hpi_read_word(dev, addr - 1);
453 *buf++ = (tmp >> 8) & 0x00ff;
454 addr++;
455 len--;
456 }
457
458 hpi_read_words_le16(dev, addr, (u16 *)buf, len / 2);
459 buf += len & ~0x01;
460 addr += len & ~0x01;
461 len &= 0x01;
462
463 if (len) {
464 u16 tmp;
465 tmp = hpi_read_word(dev, addr);
466 *buf = tmp & 0x00ff;
467 }
468}
469
470/* -------------------------------------------------------------------------- */
471
472void c67x00_ll_init(struct c67x00_device *dev)
473{
474 mutex_init(&dev->hpi.lcp.mutex);
475 init_completion(&dev->hpi.lcp.msg_received);
476}
477
478void c67x00_ll_release(struct c67x00_device *dev)
479{
480}
diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c
new file mode 100644
index 000000000000..85dfe2965661
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -0,0 +1,1170 @@
1/*
2 * c67x00-sched.c: Cypress C67X00 USB Host Controller Driver - TD scheduling
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24#include <linux/kthread.h>
25
26#include "c67x00.h"
27#include "c67x00-hcd.h"
28
29/*
30 * These are the stages for a control urb, they are kept
31 * in both urb->interval and td->privdata.
32 */
33#define SETUP_STAGE 0
34#define DATA_STAGE 1
35#define STATUS_STAGE 2
36
37/* -------------------------------------------------------------------------- */
38
39/**
40 * struct c67x00_ep_data: Host endpoint data structure
41 */
42struct c67x00_ep_data {
43 struct list_head queue;
44 struct list_head node;
45 struct usb_host_endpoint *hep;
46 struct usb_device *dev;
47 u16 next_frame; /* For int/isoc transactions */
48};
49
50/**
51 * struct c67x00_td
52 *
53 * Hardware parts are little endiannes, SW in CPU endianess.
54 */
55struct c67x00_td {
56 /* HW specific part */
57 __le16 ly_base_addr; /* Bytes 0-1 */
58 __le16 port_length; /* Bytes 2-3 */
59 u8 pid_ep; /* Byte 4 */
60 u8 dev_addr; /* Byte 5 */
61 u8 ctrl_reg; /* Byte 6 */
62 u8 status; /* Byte 7 */
63 u8 retry_cnt; /* Byte 8 */
64#define TT_OFFSET 2
65#define TT_CONTROL 0
66#define TT_ISOCHRONOUS 1
67#define TT_BULK 2
68#define TT_INTERRUPT 3
69 u8 residue; /* Byte 9 */
70 __le16 next_td_addr; /* Bytes 10-11 */
71 /* SW part */
72 struct list_head td_list;
73 u16 td_addr;
74 void *data;
75 struct urb *urb;
76 unsigned long privdata;
77
78 /* These are needed for handling the toggle bits:
79 * an urb can be dequeued while a td is in progress
80 * after checking the td, the toggle bit might need to
81 * be fixed */
82 struct c67x00_ep_data *ep_data;
83 unsigned int pipe;
84};
85
86struct c67x00_urb_priv {
87 struct list_head hep_node;
88 struct urb *urb;
89 int port;
90 int cnt; /* packet number for isoc */
91 int status;
92 struct c67x00_ep_data *ep_data;
93};
94
95#define td_udev(td) ((td)->ep_data->dev)
96
97#define CY_TD_SIZE 12
98
99#define TD_PIDEP_OFFSET 0x04
100#define TD_PIDEPMASK_PID 0xF0
101#define TD_PIDEPMASK_EP 0x0F
102#define TD_PORTLENMASK_DL 0x02FF
103#define TD_PORTLENMASK_PN 0xC000
104
105#define TD_STATUS_OFFSET 0x07
106#define TD_STATUSMASK_ACK 0x01
107#define TD_STATUSMASK_ERR 0x02
108#define TD_STATUSMASK_TMOUT 0x04
109#define TD_STATUSMASK_SEQ 0x08
110#define TD_STATUSMASK_SETUP 0x10
111#define TD_STATUSMASK_OVF 0x20
112#define TD_STATUSMASK_NAK 0x40
113#define TD_STATUSMASK_STALL 0x80
114
115#define TD_ERROR_MASK (TD_STATUSMASK_ERR | TD_STATUSMASK_TMOUT | \
116 TD_STATUSMASK_STALL)
117
118#define TD_RETRYCNT_OFFSET 0x08
119#define TD_RETRYCNTMASK_ACT_FLG 0x10
120#define TD_RETRYCNTMASK_TX_TYPE 0x0C
121#define TD_RETRYCNTMASK_RTY_CNT 0x03
122
123#define TD_RESIDUE_OVERFLOW 0x80
124
125#define TD_PID_IN 0x90
126
127/* Residue: signed 8bits, neg -> OVERFLOW, pos -> UNDERFLOW */
128#define td_residue(td) ((__s8)(td->residue))
129#define td_ly_base_addr(td) (__le16_to_cpu((td)->ly_base_addr))
130#define td_port_length(td) (__le16_to_cpu((td)->port_length))
131#define td_next_td_addr(td) (__le16_to_cpu((td)->next_td_addr))
132
133#define td_active(td) ((td)->retry_cnt & TD_RETRYCNTMASK_ACT_FLG)
134#define td_length(td) (td_port_length(td) & TD_PORTLENMASK_DL)
135
136#define td_sequence_ok(td) (!td->status || \
137 (!(td->status & TD_STATUSMASK_SEQ) == \
138 !(td->ctrl_reg & SEQ_SEL)))
139
140#define td_acked(td) (!td->status || \
141 (td->status & TD_STATUSMASK_ACK))
142#define td_actual_bytes(td) (td_length(td) - td_residue(td))
143
144/* -------------------------------------------------------------------------- */
145
146#ifdef DEBUG
147
148/**
149 * dbg_td - Dump the contents of the TD
150 */
151static void dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg)
152{
153 struct device *dev = c67x00_hcd_dev(c67x00);
154
155 dev_dbg(dev, "### %s at 0x%04x\n", msg, td->td_addr);
156 dev_dbg(dev, "urb: 0x%p\n", td->urb);
157 dev_dbg(dev, "endpoint: %4d\n", usb_pipeendpoint(td->pipe));
158 dev_dbg(dev, "pipeout: %4d\n", usb_pipeout(td->pipe));
159 dev_dbg(dev, "ly_base_addr: 0x%04x\n", td_ly_base_addr(td));
160 dev_dbg(dev, "port_length: 0x%04x\n", td_port_length(td));
161 dev_dbg(dev, "pid_ep: 0x%02x\n", td->pid_ep);
162 dev_dbg(dev, "dev_addr: 0x%02x\n", td->dev_addr);
163 dev_dbg(dev, "ctrl_reg: 0x%02x\n", td->ctrl_reg);
164 dev_dbg(dev, "status: 0x%02x\n", td->status);
165 dev_dbg(dev, "retry_cnt: 0x%02x\n", td->retry_cnt);
166 dev_dbg(dev, "residue: 0x%02x\n", td->residue);
167 dev_dbg(dev, "next_td_addr: 0x%04x\n", td_next_td_addr(td));
168 dev_dbg(dev, "data:");
169 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 1,
170 td->data, td_length(td), 1);
171}
172#else /* DEBUG */
173
174static inline void
175dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg) { }
176
177#endif /* DEBUG */
178
179/* -------------------------------------------------------------------------- */
180/* Helper functions */
181
182static inline u16 c67x00_get_current_frame_number(struct c67x00_hcd *c67x00)
183{
184 return c67x00_ll_husb_get_frame(c67x00->sie) & HOST_FRAME_MASK;
185}
186
187/**
188 * frame_add
189 * Software wraparound for framenumbers.
190 */
191static inline u16 frame_add(u16 a, u16 b)
192{
193 return (a + b) & HOST_FRAME_MASK;
194}
195
196/**
197 * frame_after - is frame a after frame b
198 */
199static inline int frame_after(u16 a, u16 b)
200{
201 return ((HOST_FRAME_MASK + a - b) & HOST_FRAME_MASK) <
202 (HOST_FRAME_MASK / 2);
203}
204
205/**
206 * frame_after_eq - is frame a after or equal to frame b
207 */
208static inline int frame_after_eq(u16 a, u16 b)
209{
210 return ((HOST_FRAME_MASK + 1 + a - b) & HOST_FRAME_MASK) <
211 (HOST_FRAME_MASK / 2);
212}
213
214/* -------------------------------------------------------------------------- */
215
216/**
217 * c67x00_release_urb - remove link from all tds to this urb
218 * Disconnects the urb from it's tds, so that it can be given back.
219 * pre: urb->hcpriv != NULL
220 */
221static void c67x00_release_urb(struct c67x00_hcd *c67x00, struct urb *urb)
222{
223 struct c67x00_td *td;
224 struct c67x00_urb_priv *urbp;
225
226 BUG_ON(!urb);
227
228 c67x00->urb_count--;
229
230 if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
231 c67x00->urb_iso_count--;
232 if (c67x00->urb_iso_count == 0)
233 c67x00->max_frame_bw = MAX_FRAME_BW_STD;
234 }
235
236 /* TODO this might be not so efficient when we've got many urbs!
237 * Alternatives:
238 * * only clear when needed
239 * * keep a list of tds with each urbp
240 */
241 list_for_each_entry(td, &c67x00->td_list, td_list)
242 if (urb == td->urb)
243 td->urb = NULL;
244
245 urbp = urb->hcpriv;
246 urb->hcpriv = NULL;
247 list_del(&urbp->hep_node);
248 kfree(urbp);
249}
250
251/* -------------------------------------------------------------------------- */
252
253static struct c67x00_ep_data *
254c67x00_ep_data_alloc(struct c67x00_hcd *c67x00, struct urb *urb)
255{
256 struct usb_host_endpoint *hep = urb->ep;
257 struct c67x00_ep_data *ep_data;
258 int type;
259
260 c67x00->current_frame = c67x00_get_current_frame_number(c67x00);
261
262 /* Check if endpoint already has a c67x00_ep_data struct allocated */
263 if (hep->hcpriv) {
264 ep_data = hep->hcpriv;
265 if (frame_after(c67x00->current_frame, ep_data->next_frame))
266 ep_data->next_frame =
267 frame_add(c67x00->current_frame, 1);
268 return hep->hcpriv;
269 }
270
271 /* Allocate and initialize a new c67x00 endpoint data structure */
272 ep_data = kzalloc(sizeof(*ep_data), GFP_ATOMIC);
273 if (!ep_data)
274 return NULL;
275
276 INIT_LIST_HEAD(&ep_data->queue);
277 INIT_LIST_HEAD(&ep_data->node);
278 ep_data->hep = hep;
279
280 /* hold a reference to udev as long as this endpoint lives,
281 * this is needed to possibly fix the data toggle */
282 ep_data->dev = usb_get_dev(urb->dev);
283 hep->hcpriv = ep_data;
284
285 /* For ISOC and INT endpoints, start ASAP: */
286 ep_data->next_frame = frame_add(c67x00->current_frame, 1);
287
288 /* Add the endpoint data to one of the pipe lists; must be added
289 in order of endpoint address */
290 type = usb_pipetype(urb->pipe);
291 if (list_empty(&ep_data->node)) {
292 list_add(&ep_data->node, &c67x00->list[type]);
293 } else {
294 struct c67x00_ep_data *prev;
295
296 list_for_each_entry(prev, &c67x00->list[type], node) {
297 if (prev->hep->desc.bEndpointAddress >
298 hep->desc.bEndpointAddress) {
299 list_add(&ep_data->node, prev->node.prev);
300 break;
301 }
302 }
303 }
304
305 return ep_data;
306}
307
308static int c67x00_ep_data_free(struct usb_host_endpoint *hep)
309{
310 struct c67x00_ep_data *ep_data = hep->hcpriv;
311
312 if (!ep_data)
313 return 0;
314
315 if (!list_empty(&ep_data->queue))
316 return -EBUSY;
317
318 usb_put_dev(ep_data->dev);
319 list_del(&ep_data->queue);
320 list_del(&ep_data->node);
321
322 kfree(ep_data);
323 hep->hcpriv = NULL;
324
325 return 0;
326}
327
328void c67x00_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
329{
330 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
331 unsigned long flags;
332
333 if (!list_empty(&ep->urb_list))
334 dev_warn(c67x00_hcd_dev(c67x00), "error: urb list not empty\n");
335
336 spin_lock_irqsave(&c67x00->lock, flags);
337
338 /* loop waiting for all transfers in the endpoint queue to complete */
339 while (c67x00_ep_data_free(ep)) {
340 /* Drop the lock so we can sleep waiting for the hardware */
341 spin_unlock_irqrestore(&c67x00->lock, flags);
342
343 /* it could happen that we reinitialize this completion, while
344 * somebody was waiting for that completion. The timeout and
345 * while loop handle such cases, but this might be improved */
346 INIT_COMPLETION(c67x00->endpoint_disable);
347 c67x00_sched_kick(c67x00);
348 wait_for_completion_timeout(&c67x00->endpoint_disable, 1 * HZ);
349
350 spin_lock_irqsave(&c67x00->lock, flags);
351 }
352
353 spin_unlock_irqrestore(&c67x00->lock, flags);
354}
355
356/* -------------------------------------------------------------------------- */
357
358static inline int get_root_port(struct usb_device *dev)
359{
360 while (dev->parent->parent)
361 dev = dev->parent;
362 return dev->portnum;
363}
364
365int c67x00_urb_enqueue(struct usb_hcd *hcd,
366 struct urb *urb, gfp_t mem_flags)
367{
368 int ret;
369 unsigned long flags;
370 struct c67x00_urb_priv *urbp;
371 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
372 int port = get_root_port(urb->dev)-1;
373
374 spin_lock_irqsave(&c67x00->lock, flags);
375
376 /* Make sure host controller is running */
377 if (!HC_IS_RUNNING(hcd->state)) {
378 ret = -ENODEV;
379 goto err_not_linked;
380 }
381
382 ret = usb_hcd_link_urb_to_ep(hcd, urb);
383 if (ret)
384 goto err_not_linked;
385
386 /* Allocate and initialize urb private data */
387 urbp = kzalloc(sizeof(*urbp), mem_flags);
388 if (!urbp) {
389 ret = -ENOMEM;
390 goto err_urbp;
391 }
392
393 INIT_LIST_HEAD(&urbp->hep_node);
394 urbp->urb = urb;
395 urbp->port = port;
396
397 urbp->ep_data = c67x00_ep_data_alloc(c67x00, urb);
398
399 if (!urbp->ep_data) {
400 ret = -ENOMEM;
401 goto err_epdata;
402 }
403
404 /* TODO claim bandwidth with usb_claim_bandwidth?
405 * also release it somewhere! */
406
407 urb->hcpriv = urbp;
408
409 urb->actual_length = 0; /* Nothing received/transmitted yet */
410
411 switch (usb_pipetype(urb->pipe)) {
412 case PIPE_CONTROL:
413 urb->interval = SETUP_STAGE;
414 break;
415 case PIPE_INTERRUPT:
416 break;
417 case PIPE_BULK:
418 break;
419 case PIPE_ISOCHRONOUS:
420 if (c67x00->urb_iso_count == 0)
421 c67x00->max_frame_bw = MAX_FRAME_BW_ISO;
422 c67x00->urb_iso_count++;
423 /* Assume always URB_ISO_ASAP, FIXME */
424 if (list_empty(&urbp->ep_data->queue))
425 urb->start_frame = urbp->ep_data->next_frame;
426 else {
427 /* Go right after the last one */
428 struct urb *last_urb;
429
430 last_urb = list_entry(urbp->ep_data->queue.prev,
431 struct c67x00_urb_priv,
432 hep_node)->urb;
433 urb->start_frame =
434 frame_add(last_urb->start_frame,
435 last_urb->number_of_packets *
436 last_urb->interval);
437 }
438 urbp->cnt = 0;
439 break;
440 }
441
442 /* Add the URB to the endpoint queue */
443 list_add_tail(&urbp->hep_node, &urbp->ep_data->queue);
444
445 /* If this is the only URB, kick start the controller */
446 if (!c67x00->urb_count++)
447 c67x00_ll_hpi_enable_sofeop(c67x00->sie);
448
449 c67x00_sched_kick(c67x00);
450 spin_unlock_irqrestore(&c67x00->lock, flags);
451
452 return 0;
453
454err_epdata:
455 kfree(urbp);
456err_urbp:
457 usb_hcd_unlink_urb_from_ep(hcd, urb);
458err_not_linked:
459 spin_unlock_irqrestore(&c67x00->lock, flags);
460
461 return ret;
462}
463
464int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
465{
466 struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
467 unsigned long flags;
468 int rc;
469
470 spin_lock_irqsave(&c67x00->lock, flags);
471 rc = usb_hcd_check_unlink_urb(hcd, urb, status);
472 if (rc)
473 goto done;
474
475 c67x00_release_urb(c67x00, urb);
476 usb_hcd_unlink_urb_from_ep(hcd, urb);
477
478 spin_unlock(&c67x00->lock);
479 usb_hcd_giveback_urb(hcd, urb, status);
480 spin_lock(&c67x00->lock);
481
482 spin_unlock_irqrestore(&c67x00->lock, flags);
483
484 return 0;
485
486 done:
487 spin_unlock_irqrestore(&c67x00->lock, flags);
488 return rc;
489}
490
491/* -------------------------------------------------------------------------- */
492
493/*
494 * pre: c67x00 locked, urb unlocked
495 */
496static void
497c67x00_giveback_urb(struct c67x00_hcd *c67x00, struct urb *urb, int status)
498{
499 struct c67x00_urb_priv *urbp;
500
501 if (!urb)
502 return;
503
504 urbp = urb->hcpriv;
505 urbp->status = status;
506
507 list_del_init(&urbp->hep_node);
508
509 c67x00_release_urb(c67x00, urb);
510 usb_hcd_unlink_urb_from_ep(c67x00_hcd_to_hcd(c67x00), urb);
511 spin_unlock(&c67x00->lock);
512 usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);
513 spin_lock(&c67x00->lock);
514}
515
516/* -------------------------------------------------------------------------- */
517
518static int c67x00_claim_frame_bw(struct c67x00_hcd *c67x00, struct urb *urb,
519 int len, int periodic)
520{
521 struct c67x00_urb_priv *urbp = urb->hcpriv;
522 int bit_time;
523
524 /* According to the C67x00 BIOS user manual, page 3-18,19, the
525 * following calculations provide the full speed bit times for
526 * a transaction.
527 *
528 * FS(in) = 112.5 + 9.36*BC + HOST_DELAY
529 * FS(in,iso) = 90.5 + 9.36*BC + HOST_DELAY
530 * FS(out) = 112.5 + 9.36*BC + HOST_DELAY
531 * FS(out,iso) = 78.4 + 9.36*BC + HOST_DELAY
532 * LS(in) = 802.4 + 75.78*BC + HOST_DELAY
533 * LS(out) = 802.6 + 74.67*BC + HOST_DELAY
534 *
535 * HOST_DELAY == 106 for the c67200 and c67300.
536 */
537
538 /* make calculations in 1/100 bit times to maintain resolution */
539 if (urbp->ep_data->dev->speed == USB_SPEED_LOW) {
540 /* Low speed pipe */
541 if (usb_pipein(urb->pipe))
542 bit_time = 80240 + 7578*len;
543 else
544 bit_time = 80260 + 7467*len;
545 } else {
546 /* FS pipes */
547 if (usb_pipeisoc(urb->pipe))
548 bit_time = usb_pipein(urb->pipe) ? 9050 : 7840;
549 else
550 bit_time = 11250;
551 bit_time += 936*len;
552 }
553
554 /* Scale back down to integer bit times. Use a host delay of 106.
555 * (this is the only place it is used) */
556 bit_time = ((bit_time+50) / 100) + 106;
557
558 if (unlikely(bit_time + c67x00->bandwidth_allocated >=
559 c67x00->max_frame_bw))
560 return -EMSGSIZE;
561
562 if (unlikely(c67x00->next_td_addr + CY_TD_SIZE >=
563 c67x00->td_base_addr + SIE_TD_SIZE))
564 return -EMSGSIZE;
565
566 if (unlikely(c67x00->next_buf_addr + len >=
567 c67x00->buf_base_addr + SIE_TD_BUF_SIZE))
568 return -EMSGSIZE;
569
570 if (periodic) {
571 if (unlikely(bit_time + c67x00->periodic_bw_allocated >=
572 MAX_PERIODIC_BW(c67x00->max_frame_bw)))
573 return -EMSGSIZE;
574 c67x00->periodic_bw_allocated += bit_time;
575 }
576
577 c67x00->bandwidth_allocated += bit_time;
578 return 0;
579}
580
581/* -------------------------------------------------------------------------- */
582
583/**
584 * td_addr and buf_addr must be word aligned
585 */
586static int c67x00_create_td(struct c67x00_hcd *c67x00, struct urb *urb,
587 void *data, int len, int pid, int toggle,
588 unsigned long privdata)
589{
590 struct c67x00_td *td;
591 struct c67x00_urb_priv *urbp = urb->hcpriv;
592 const __u8 active_flag = 1, retry_cnt = 1;
593 __u8 cmd = 0;
594 int tt = 0;
595
596 if (c67x00_claim_frame_bw(c67x00, urb, len, usb_pipeisoc(urb->pipe)
597 || usb_pipeint(urb->pipe)))
598 return -EMSGSIZE; /* Not really an error, but expected */
599
600 td = kzalloc(sizeof(*td), GFP_ATOMIC);
601 if (!td)
602 return -ENOMEM;
603
604 td->pipe = urb->pipe;
605 td->ep_data = urbp->ep_data;
606
607 if ((td_udev(td)->speed == USB_SPEED_LOW) &&
608 !(c67x00->low_speed_ports & (1 << urbp->port)))
609 cmd |= PREAMBLE_EN;
610
611 switch (usb_pipetype(td->pipe)) {
612 case PIPE_ISOCHRONOUS:
613 tt = TT_ISOCHRONOUS;
614 cmd |= ISO_EN;
615 break;
616 case PIPE_CONTROL:
617 tt = TT_CONTROL;
618 break;
619 case PIPE_BULK:
620 tt = TT_BULK;
621 break;
622 case PIPE_INTERRUPT:
623 tt = TT_INTERRUPT;
624 break;
625 }
626
627 if (toggle)
628 cmd |= SEQ_SEL;
629
630 cmd |= ARM_EN;
631
632 /* SW part */
633 td->td_addr = c67x00->next_td_addr;
634 c67x00->next_td_addr = c67x00->next_td_addr + CY_TD_SIZE;
635
636 /* HW part */
637 td->ly_base_addr = __cpu_to_le16(c67x00->next_buf_addr);
638 td->port_length = __cpu_to_le16((c67x00->sie->sie_num << 15) |
639 (urbp->port << 14) | (len & 0x3FF));
640 td->pid_ep = ((pid & 0xF) << TD_PIDEP_OFFSET) |
641 (usb_pipeendpoint(td->pipe) & 0xF);
642 td->dev_addr = usb_pipedevice(td->pipe) & 0x7F;
643 td->ctrl_reg = cmd;
644 td->status = 0;
645 td->retry_cnt = (tt << TT_OFFSET) | (active_flag << 4) | retry_cnt;
646 td->residue = 0;
647 td->next_td_addr = __cpu_to_le16(c67x00->next_td_addr);
648
649 /* SW part */
650 td->data = data;
651 td->urb = urb;
652 td->privdata = privdata;
653
654 c67x00->next_buf_addr += (len + 1) & ~0x01; /* properly align */
655
656 list_add_tail(&td->td_list, &c67x00->td_list);
657 return 0;
658}
659
660static inline void c67x00_release_td(struct c67x00_td *td)
661{
662 list_del_init(&td->td_list);
663 kfree(td);
664}
665
666/* -------------------------------------------------------------------------- */
667
668static int c67x00_add_data_urb(struct c67x00_hcd *c67x00, struct urb *urb)
669{
670 int remaining;
671 int toggle;
672 int pid;
673 int ret = 0;
674 int maxps;
675 int need_empty;
676
677 toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
678 usb_pipeout(urb->pipe));
679 remaining = urb->transfer_buffer_length - urb->actual_length;
680
681 maxps = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
682
683 need_empty = (urb->transfer_flags & URB_ZERO_PACKET) &&
684 usb_pipeout(urb->pipe) && !(remaining % maxps);
685
686 while (remaining || need_empty) {
687 int len;
688 char *td_buf;
689
690 len = (remaining > maxps) ? maxps : remaining;
691 if (!len)
692 need_empty = 0;
693
694 pid = usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
695 td_buf = urb->transfer_buffer + urb->transfer_buffer_length -
696 remaining;
697 ret = c67x00_create_td(c67x00, urb, td_buf, len, pid, toggle,
698 DATA_STAGE);
699 if (ret)
700 return ret; /* td wasn't created */
701
702 toggle ^= 1;
703 remaining -= len;
704 if (usb_pipecontrol(urb->pipe))
705 break;
706 }
707
708 return 0;
709}
710
711/**
712 * return 0 in case more bandwidth is available, else errorcode
713 */
714static int c67x00_add_ctrl_urb(struct c67x00_hcd *c67x00, struct urb *urb)
715{
716 int ret;
717 int pid;
718
719 switch (urb->interval) {
720 default:
721 case SETUP_STAGE:
722 ret = c67x00_create_td(c67x00, urb, urb->setup_packet,
723 8, USB_PID_SETUP, 0, SETUP_STAGE);
724 if (ret)
725 return ret;
726 urb->interval = SETUP_STAGE;
727 usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
728 usb_pipeout(urb->pipe), 1);
729 break;
730 case DATA_STAGE:
731 if (urb->transfer_buffer_length) {
732 ret = c67x00_add_data_urb(c67x00, urb);
733 if (ret)
734 return ret;
735 break;
736 } /* else fallthrough */
737 case STATUS_STAGE:
738 pid = !usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
739 ret = c67x00_create_td(c67x00, urb, NULL, 0, pid, 1,
740 STATUS_STAGE);
741 if (ret)
742 return ret;
743 break;
744 }
745
746 return 0;
747}
748
749/*
750 * return 0 in case more bandwidth is available, else errorcode
751 */
752static int c67x00_add_int_urb(struct c67x00_hcd *c67x00, struct urb *urb)
753{
754 struct c67x00_urb_priv *urbp = urb->hcpriv;
755
756 if (frame_after_eq(c67x00->current_frame, urbp->ep_data->next_frame)) {
757 urbp->ep_data->next_frame =
758 frame_add(urbp->ep_data->next_frame, urb->interval);
759 return c67x00_add_data_urb(c67x00, urb);
760 }
761 return 0;
762}
763
764static int c67x00_add_iso_urb(struct c67x00_hcd *c67x00, struct urb *urb)
765{
766 struct c67x00_urb_priv *urbp = urb->hcpriv;
767
768 if (frame_after_eq(c67x00->current_frame, urbp->ep_data->next_frame)) {
769 char *td_buf;
770 int len, pid, ret;
771
772 BUG_ON(urbp->cnt >= urb->number_of_packets);
773
774 td_buf = urb->transfer_buffer +
775 urb->iso_frame_desc[urbp->cnt].offset;
776 len = urb->iso_frame_desc[urbp->cnt].length;
777 pid = usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
778
779 ret = c67x00_create_td(c67x00, urb, td_buf, len, pid, 0,
780 urbp->cnt);
781 if (ret) {
782 printk(KERN_DEBUG "create failed: %d\n", ret);
783 urb->iso_frame_desc[urbp->cnt].actual_length = 0;
784 urb->iso_frame_desc[urbp->cnt].status = ret;
785 if (urbp->cnt + 1 == urb->number_of_packets)
786 c67x00_giveback_urb(c67x00, urb, 0);
787 }
788
789 urbp->ep_data->next_frame =
790 frame_add(urbp->ep_data->next_frame, urb->interval);
791 urbp->cnt++;
792 }
793 return 0;
794}
795
796/* -------------------------------------------------------------------------- */
797
798static void c67x00_fill_from_list(struct c67x00_hcd *c67x00, int type,
799 int (*add)(struct c67x00_hcd *, struct urb *))
800{
801 struct c67x00_ep_data *ep_data;
802 struct urb *urb;
803
804 /* traverse every endpoint on the list */
805 list_for_each_entry(ep_data, &c67x00->list[type], node) {
806 if (!list_empty(&ep_data->queue)) {
807 /* and add the first urb */
808 /* isochronous transfer rely on this */
809 urb = list_entry(ep_data->queue.next,
810 struct c67x00_urb_priv,
811 hep_node)->urb;
812 add(c67x00, urb);
813 }
814 }
815}
816
817static void c67x00_fill_frame(struct c67x00_hcd *c67x00)
818{
819 struct c67x00_td *td, *ttd;
820
821 /* Check if we can proceed */
822 if (!list_empty(&c67x00->td_list)) {
823 dev_warn(c67x00_hcd_dev(c67x00),
824 "TD list not empty! This should not happen!\n");
825 list_for_each_entry_safe(td, ttd, &c67x00->td_list, td_list) {
826 dbg_td(c67x00, td, "Unprocessed td");
827 c67x00_release_td(td);
828 }
829 }
830
831 /* Reinitialize variables */
832 c67x00->bandwidth_allocated = 0;
833 c67x00->periodic_bw_allocated = 0;
834
835 c67x00->next_td_addr = c67x00->td_base_addr;
836 c67x00->next_buf_addr = c67x00->buf_base_addr;
837
838 /* Fill the list */
839 c67x00_fill_from_list(c67x00, PIPE_ISOCHRONOUS, c67x00_add_iso_urb);
840 c67x00_fill_from_list(c67x00, PIPE_INTERRUPT, c67x00_add_int_urb);
841 c67x00_fill_from_list(c67x00, PIPE_CONTROL, c67x00_add_ctrl_urb);
842 c67x00_fill_from_list(c67x00, PIPE_BULK, c67x00_add_data_urb);
843}
844
845/* -------------------------------------------------------------------------- */
846
847/**
848 * Get TD from C67X00
849 */
850static inline void
851c67x00_parse_td(struct c67x00_hcd *c67x00, struct c67x00_td *td)
852{
853 c67x00_ll_read_mem_le16(c67x00->sie->dev,
854 td->td_addr, td, CY_TD_SIZE);
855
856 if (usb_pipein(td->pipe) && td_actual_bytes(td))
857 c67x00_ll_read_mem_le16(c67x00->sie->dev, td_ly_base_addr(td),
858 td->data, td_actual_bytes(td));
859}
860
861static int c67x00_td_to_error(struct c67x00_hcd *c67x00, struct c67x00_td *td)
862{
863 if (td->status & TD_STATUSMASK_ERR) {
864 dbg_td(c67x00, td, "ERROR_FLAG");
865 return -EILSEQ;
866 }
867 if (td->status & TD_STATUSMASK_STALL) {
868 /* dbg_td(c67x00, td, "STALL"); */
869 return -EPIPE;
870 }
871 if (td->status & TD_STATUSMASK_TMOUT) {
872 dbg_td(c67x00, td, "TIMEOUT");
873 return -ETIMEDOUT;
874 }
875
876 return 0;
877}
878
879static inline int c67x00_end_of_data(struct c67x00_td *td)
880{
881 int maxps, need_empty, remaining;
882 struct urb *urb = td->urb;
883 int act_bytes;
884
885 act_bytes = td_actual_bytes(td);
886
887 if (unlikely(!act_bytes))
888 return 1; /* This was an empty packet */
889
890 maxps = usb_maxpacket(td_udev(td), td->pipe, usb_pipeout(td->pipe));
891
892 if (unlikely(act_bytes < maxps))
893 return 1; /* Smaller then full packet */
894
895 remaining = urb->transfer_buffer_length - urb->actual_length;
896 need_empty = (urb->transfer_flags & URB_ZERO_PACKET) &&
897 usb_pipeout(urb->pipe) && !(remaining % maxps);
898
899 if (unlikely(!remaining && !need_empty))
900 return 1;
901
902 return 0;
903}
904
905/* -------------------------------------------------------------------------- */
906
907/* Remove all td's from the list which come
908 * after last_td and are meant for the same pipe.
909 * This is used when a short packet has occured */
910static inline void c67x00_clear_pipe(struct c67x00_hcd *c67x00,
911 struct c67x00_td *last_td)
912{
913 struct c67x00_td *td, *tmp;
914 td = last_td;
915 tmp = last_td;
916 while (td->td_list.next != &c67x00->td_list) {
917 td = list_entry(td->td_list.next, struct c67x00_td, td_list);
918 if (td->pipe == last_td->pipe) {
919 c67x00_release_td(td);
920 td = tmp;
921 }
922 tmp = td;
923 }
924}
925
926/* -------------------------------------------------------------------------- */
927
928static void c67x00_handle_successful_td(struct c67x00_hcd *c67x00,
929 struct c67x00_td *td)
930{
931 struct urb *urb = td->urb;
932
933 if (!urb)
934 return;
935
936 urb->actual_length += td_actual_bytes(td);
937
938 switch (usb_pipetype(td->pipe)) {
939 /* isochronous tds are handled separately */
940 case PIPE_CONTROL:
941 switch (td->privdata) {
942 case SETUP_STAGE:
943 urb->interval =
944 urb->transfer_buffer_length ?
945 DATA_STAGE : STATUS_STAGE;
946 /* Don't count setup_packet with normal data: */
947 urb->actual_length = 0;
948 break;
949
950 case DATA_STAGE:
951 if (c67x00_end_of_data(td)) {
952 urb->interval = STATUS_STAGE;
953 c67x00_clear_pipe(c67x00, td);
954 }
955 break;
956
957 case STATUS_STAGE:
958 urb->interval = 0;
959 c67x00_giveback_urb(c67x00, urb, 0);
960 break;
961 }
962 break;
963
964 case PIPE_INTERRUPT:
965 case PIPE_BULK:
966 if (unlikely(c67x00_end_of_data(td))) {
967 c67x00_clear_pipe(c67x00, td);
968 c67x00_giveback_urb(c67x00, urb, 0);
969 }
970 break;
971 }
972}
973
974static void c67x00_handle_isoc(struct c67x00_hcd *c67x00, struct c67x00_td *td)
975{
976 struct urb *urb = td->urb;
977 struct c67x00_urb_priv *urbp;
978 int cnt;
979
980 if (!urb)
981 return;
982
983 urbp = urb->hcpriv;
984 cnt = td->privdata;
985
986 if (td->status & TD_ERROR_MASK)
987 urb->error_count++;
988
989 urb->iso_frame_desc[cnt].actual_length = td_actual_bytes(td);
990 urb->iso_frame_desc[cnt].status = c67x00_td_to_error(c67x00, td);
991 if (cnt + 1 == urb->number_of_packets) /* Last packet */
992 c67x00_giveback_urb(c67x00, urb, 0);
993}
994
995/* -------------------------------------------------------------------------- */
996
997/**
998 * c67x00_check_td_list - handle tds which have been processed by the c67x00
999 * pre: current_td == 0
1000 */
1001static inline void c67x00_check_td_list(struct c67x00_hcd *c67x00)
1002{
1003 struct c67x00_td *td, *tmp;
1004 struct urb *urb;
1005 int ack_ok;
1006 int clear_endpoint;
1007
1008 list_for_each_entry_safe(td, tmp, &c67x00->td_list, td_list) {
1009 /* get the TD */
1010 c67x00_parse_td(c67x00, td);
1011 urb = td->urb; /* urb can be NULL! */
1012 ack_ok = 0;
1013 clear_endpoint = 1;
1014
1015 /* Handle isochronous transfers separately */
1016 if (usb_pipeisoc(td->pipe)) {
1017 clear_endpoint = 0;
1018 c67x00_handle_isoc(c67x00, td);
1019 goto cont;
1020 }
1021
1022 /* When an error occurs, all td's for that pipe go into an
1023 * inactive state. This state matches successful transfers so
1024 * we must make sure not to service them. */
1025 if (td->status & TD_ERROR_MASK) {
1026 c67x00_giveback_urb(c67x00, urb,
1027 c67x00_td_to_error(c67x00, td));
1028 goto cont;
1029 }
1030
1031 if ((td->status & TD_STATUSMASK_NAK) || !td_sequence_ok(td) ||
1032 !td_acked(td))
1033 goto cont;
1034
1035 /* Sequence ok and acked, don't need to fix toggle */
1036 ack_ok = 1;
1037
1038 if (unlikely(td->status & TD_STATUSMASK_OVF)) {
1039 if (td_residue(td) & TD_RESIDUE_OVERFLOW) {
1040 /* Overflow */
1041 c67x00_giveback_urb(c67x00, urb, -EOVERFLOW);
1042 goto cont;
1043 }
1044 }
1045
1046 clear_endpoint = 0;
1047 c67x00_handle_successful_td(c67x00, td);
1048
1049cont:
1050 if (clear_endpoint)
1051 c67x00_clear_pipe(c67x00, td);
1052 if (ack_ok)
1053 usb_settoggle(td_udev(td), usb_pipeendpoint(td->pipe),
1054 usb_pipeout(td->pipe),
1055 !(td->ctrl_reg & SEQ_SEL));
1056 /* next in list could have been removed, due to clear_pipe! */
1057 tmp = list_entry(td->td_list.next, typeof(*td), td_list);
1058 c67x00_release_td(td);
1059 }
1060}
1061
1062/* -------------------------------------------------------------------------- */
1063
1064static inline int c67x00_all_tds_processed(struct c67x00_hcd *c67x00)
1065{
1066 /* If all tds are processed, we can check the previous frame (if
1067 * there was any) and start our next frame.
1068 */
1069 return !c67x00_ll_husb_get_current_td(c67x00->sie);
1070}
1071
1072/**
1073 * Send td to C67X00
1074 */
1075static void c67x00_send_td(struct c67x00_hcd *c67x00, struct c67x00_td *td)
1076{
1077 int len = td_length(td);
1078
1079 if (len && ((td->pid_ep & TD_PIDEPMASK_PID) != TD_PID_IN))
1080 c67x00_ll_write_mem_le16(c67x00->sie->dev, td_ly_base_addr(td),
1081 td->data, len);
1082
1083 c67x00_ll_write_mem_le16(c67x00->sie->dev,
1084 td->td_addr, td, CY_TD_SIZE);
1085}
1086
1087static void c67x00_send_frame(struct c67x00_hcd *c67x00)
1088{
1089 struct c67x00_td *td;
1090
1091 if (list_empty(&c67x00->td_list))
1092 dev_warn(c67x00_hcd_dev(c67x00),
1093 "%s: td list should not be empty here!\n",
1094 __func__);
1095
1096 list_for_each_entry(td, &c67x00->td_list, td_list) {
1097 if (td->td_list.next == &c67x00->td_list)
1098 td->next_td_addr = 0; /* Last td in list */
1099
1100 c67x00_send_td(c67x00, td);
1101 }
1102
1103 c67x00_ll_husb_set_current_td(c67x00->sie, c67x00->td_base_addr);
1104}
1105
1106/* -------------------------------------------------------------------------- */
1107
1108/**
1109 * c67x00_do_work - Schedulers state machine
1110 */
1111static void c67x00_do_work(struct c67x00_hcd *c67x00)
1112{
1113 spin_lock(&c67x00->lock);
1114 /* Make sure all tds are processed */
1115 if (!c67x00_all_tds_processed(c67x00))
1116 goto out;
1117
1118 c67x00_check_td_list(c67x00);
1119
1120 /* no td's are being processed (current == 0)
1121 * and all have been "checked" */
1122 complete(&c67x00->endpoint_disable);
1123
1124 if (!list_empty(&c67x00->td_list))
1125 goto out;
1126
1127 c67x00->current_frame = c67x00_get_current_frame_number(c67x00);
1128 if (c67x00->current_frame == c67x00->last_frame)
1129 goto out; /* Don't send tds in same frame */
1130 c67x00->last_frame = c67x00->current_frame;
1131
1132 /* If no urbs are scheduled, our work is done */
1133 if (!c67x00->urb_count) {
1134 c67x00_ll_hpi_disable_sofeop(c67x00->sie);
1135 goto out;
1136 }
1137
1138 c67x00_fill_frame(c67x00);
1139 if (!list_empty(&c67x00->td_list))
1140 /* TD's have been added to the frame */
1141 c67x00_send_frame(c67x00);
1142
1143 out:
1144 spin_unlock(&c67x00->lock);
1145}
1146
1147/* -------------------------------------------------------------------------- */
1148
1149static void c67x00_sched_tasklet(unsigned long __c67x00)
1150{
1151 struct c67x00_hcd *c67x00 = (struct c67x00_hcd *)__c67x00;
1152 c67x00_do_work(c67x00);
1153}
1154
1155void c67x00_sched_kick(struct c67x00_hcd *c67x00)
1156{
1157 tasklet_hi_schedule(&c67x00->tasklet);
1158}
1159
1160int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00)
1161{
1162 tasklet_init(&c67x00->tasklet, c67x00_sched_tasklet,
1163 (unsigned long)c67x00);
1164 return 0;
1165}
1166
1167void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00)
1168{
1169 tasklet_kill(&c67x00->tasklet);
1170}
diff --git a/drivers/usb/c67x00/c67x00.h b/drivers/usb/c67x00/c67x00.h
new file mode 100644
index 000000000000..a26e9ded0f32
--- /dev/null
+++ b/drivers/usb/c67x00/c67x00.h
@@ -0,0 +1,294 @@
1/*
2 * c67x00.h: Cypress C67X00 USB register and field definitions
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 * Derived from the Cypress cy7c67200/300 ezusb linux driver and
6 * based on multiple host controller drivers inside the linux kernel.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301 USA.
22 */
23
24#ifndef _USB_C67X00_H
25#define _USB_C67X00_H
26
27#include <linux/spinlock.h>
28#include <linux/platform_device.h>
29#include <linux/completion.h>
30#include <linux/mutex.h>
31
32/* ---------------------------------------------------------------------
33 * Cypress C67x00 register definitions
34 */
35
36/* Hardware Revision Register */
37#define HW_REV_REG 0xC004
38
39/* General USB registers */
40/* ===================== */
41
42/* USB Control Register */
43#define USB_CTL_REG(x) ((x) ? 0xC0AA : 0xC08A)
44
45#define LOW_SPEED_PORT(x) ((x) ? 0x0800 : 0x0400)
46#define HOST_MODE 0x0200
47#define PORT_RES_EN(x) ((x) ? 0x0100 : 0x0080)
48#define SOF_EOP_EN(x) ((x) ? 0x0002 : 0x0001)
49
50/* USB status register - Notice it has different content in hcd/udc mode */
51#define USB_STAT_REG(x) ((x) ? 0xC0B0 : 0xC090)
52
53#define EP0_IRQ_FLG 0x0001
54#define EP1_IRQ_FLG 0x0002
55#define EP2_IRQ_FLG 0x0004
56#define EP3_IRQ_FLG 0x0008
57#define EP4_IRQ_FLG 0x0010
58#define EP5_IRQ_FLG 0x0020
59#define EP6_IRQ_FLG 0x0040
60#define EP7_IRQ_FLG 0x0080
61#define RESET_IRQ_FLG 0x0100
62#define SOF_EOP_IRQ_FLG 0x0200
63#define ID_IRQ_FLG 0x4000
64#define VBUS_IRQ_FLG 0x8000
65
66/* USB Host only registers */
67/* ======================= */
68
69/* Host n Control Register */
70#define HOST_CTL_REG(x) ((x) ? 0xC0A0 : 0xC080)
71
72#define PREAMBLE_EN 0x0080 /* Preamble enable */
73#define SEQ_SEL 0x0040 /* Data Toggle Sequence Bit Select */
74#define ISO_EN 0x0010 /* Isochronous enable */
75#define ARM_EN 0x0001 /* Arm operation */
76
77/* Host n Interrupt Enable Register */
78#define HOST_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)
79
80#define SOF_EOP_IRQ_EN 0x0200 /* SOF/EOP Interrupt Enable */
81#define SOF_EOP_TMOUT_IRQ_EN 0x0800 /* SOF/EOP Timeout Interrupt Enable */
82#define ID_IRQ_EN 0x4000 /* ID interrupt enable */
83#define VBUS_IRQ_EN 0x8000 /* VBUS interrupt enable */
84#define DONE_IRQ_EN 0x0001 /* Done Interrupt Enable */
85
86/* USB status register */
87#define HOST_STAT_MASK 0x02FD
88#define PORT_CONNECT_CHANGE(x) ((x) ? 0x0020 : 0x0010)
89#define PORT_SE0_STATUS(x) ((x) ? 0x0008 : 0x0004)
90
91/* Host Frame Register */
92#define HOST_FRAME_REG(x) ((x) ? 0xC0B6 : 0xC096)
93
94#define HOST_FRAME_MASK 0x07FF
95
96/* USB Peripheral only registers */
97/* ============================= */
98
99/* Device n Port Sel reg */
100#define DEVICE_N_PORT_SEL(x) ((x) ? 0xC0A4 : 0xC084)
101
102/* Device n Interrupt Enable Register */
103#define DEVICE_N_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)
104
105#define DEVICE_N_ENDPOINT_N_CTL_REG(dev, ep) ((dev) \
106 ? (0x0280 + (ep << 4)) \
107 : (0x0200 + (ep << 4)))
108#define DEVICE_N_ENDPOINT_N_STAT_REG(dev, ep) ((dev) \
109 ? (0x0286 + (ep << 4)) \
110 : (0x0206 + (ep << 4)))
111
112#define DEVICE_N_ADDRESS(dev) ((dev) ? (0xC0AE) : (0xC08E))
113
114/* HPI registers */
115/* ============= */
116
117/* HPI Status register */
118#define SOFEOP_FLG(x) (1 << ((x) ? 12 : 10))
119#define SIEMSG_FLG(x) (1 << (4 + (x)))
120#define RESET_FLG(x) ((x) ? 0x0200 : 0x0002)
121#define DONE_FLG(x) (1 << (2 + (x)))
122#define RESUME_FLG(x) (1 << (6 + (x)))
123#define MBX_OUT_FLG 0x0001 /* Message out available */
124#define MBX_IN_FLG 0x0100
125#define ID_FLG 0x4000
126#define VBUS_FLG 0x8000
127
128/* Interrupt routing register */
129#define HPI_IRQ_ROUTING_REG 0x0142
130
131#define HPI_SWAP_ENABLE(x) ((x) ? 0x0100 : 0x0001)
132#define RESET_TO_HPI_ENABLE(x) ((x) ? 0x0200 : 0x0002)
133#define DONE_TO_HPI_ENABLE(x) ((x) ? 0x0008 : 0x0004)
134#define RESUME_TO_HPI_ENABLE(x) ((x) ? 0x0080 : 0x0040)
135#define SOFEOP_TO_HPI_EN(x) ((x) ? 0x2000 : 0x0800)
136#define SOFEOP_TO_CPU_EN(x) ((x) ? 0x1000 : 0x0400)
137#define ID_TO_HPI_ENABLE 0x4000
138#define VBUS_TO_HPI_ENABLE 0x8000
139
140/* SIE msg registers */
141#define SIEMSG_REG(x) ((x) ? 0x0148 : 0x0144)
142
143#define HUSB_TDListDone 0x1000
144
145#define SUSB_EP0_MSG 0x0001
146#define SUSB_EP1_MSG 0x0002
147#define SUSB_EP2_MSG 0x0004
148#define SUSB_EP3_MSG 0x0008
149#define SUSB_EP4_MSG 0x0010
150#define SUSB_EP5_MSG 0x0020
151#define SUSB_EP6_MSG 0x0040
152#define SUSB_EP7_MSG 0x0080
153#define SUSB_RST_MSG 0x0100
154#define SUSB_SOF_MSG 0x0200
155#define SUSB_CFG_MSG 0x0400
156#define SUSB_SUS_MSG 0x0800
157#define SUSB_ID_MSG 0x4000
158#define SUSB_VBUS_MSG 0x8000
159
160/* BIOS interrupt routines */
161
162#define SUSBx_RECEIVE_INT(x) ((x) ? 97 : 81)
163#define SUSBx_SEND_INT(x) ((x) ? 96 : 80)
164
165#define SUSBx_DEV_DESC_VEC(x) ((x) ? 0x00D4 : 0x00B4)
166#define SUSBx_CONF_DESC_VEC(x) ((x) ? 0x00D6 : 0x00B6)
167#define SUSBx_STRING_DESC_VEC(x) ((x) ? 0x00D8 : 0x00B8)
168
169#define CY_HCD_BUF_ADDR 0x500 /* Base address for host */
170#define SIE_TD_SIZE 0x200 /* size of the td list */
171#define SIE_TD_BUF_SIZE 0x400 /* size of the data buffer */
172
173#define SIE_TD_OFFSET(host) ((host) ? (SIE_TD_SIZE+SIE_TD_BUF_SIZE) : 0)
174#define SIE_BUF_OFFSET(host) (SIE_TD_OFFSET(host) + SIE_TD_SIZE)
175
176/* Base address of HCD + 2 x TD_SIZE + 2 x TD_BUF_SIZE */
177#define CY_UDC_REQ_HEADER_BASE 0x1100
178/* 8- byte request headers for IN/OUT transfers */
179#define CY_UDC_REQ_HEADER_SIZE 8
180
181#define CY_UDC_REQ_HEADER_ADDR(ep_num) (CY_UDC_REQ_HEADER_BASE + \
182 ((ep_num) * CY_UDC_REQ_HEADER_SIZE))
183#define CY_UDC_DESC_BASE_ADDRESS (CY_UDC_REQ_HEADER_ADDR(8))
184
185#define CY_UDC_BIOS_REPLACE_BASE 0x1800
186#define CY_UDC_REQ_BUFFER_BASE 0x2000
187#define CY_UDC_REQ_BUFFER_SIZE 0x0400
188#define CY_UDC_REQ_BUFFER_ADDR(ep_num) (CY_UDC_REQ_BUFFER_BASE + \
189 ((ep_num) * CY_UDC_REQ_BUFFER_SIZE))
190
191/* ---------------------------------------------------------------------
192 * Driver data structures
193 */
194
195struct c67x00_device;
196
197/**
198 * struct c67x00_sie - Common data associated with a SIE
199 * @lock: lock to protect this struct and the associated chip registers
200 * @private_data: subdriver dependent data
201 * @irq: subdriver dependent irq handler, set NULL when not used
202 * @dev: link to common driver structure
203 * @sie_num: SIE number on chip, starting from 0
204 * @mode: SIE mode (host/peripheral/otg/not used)
205 */
206struct c67x00_sie {
207 /* Entries to be used by the subdrivers */
208 spinlock_t lock; /* protect this structure */
209 void *private_data;
210 void (*irq) (struct c67x00_sie *sie, u16 int_status, u16 msg);
211
212 /* Read only: */
213 struct c67x00_device *dev;
214 int sie_num;
215 int mode;
216};
217
218#define sie_dev(s) (&(s)->dev->pdev->dev)
219
220/**
221 * struct c67x00_lcp
222 */
223struct c67x00_lcp {
224 /* Internal use only */
225 struct mutex mutex;
226 struct completion msg_received;
227 u16 last_msg;
228};
229
230/*
231 * struct c67x00_hpi
232 */
233struct c67x00_hpi {
234 void __iomem *base;
235 int regstep;
236 spinlock_t lock;
237 struct c67x00_lcp lcp;
238};
239
240#define C67X00_SIES 2
241#define C67X00_PORTS 2
242
243/**
244 * struct c67x00_device - Common data associated with a c67x00 instance
245 * @hpi: hpi addresses
246 * @sie: array of sie's on this chip
247 * @pdev: platform device of instance
248 * @pdata: configuration provided by the platform
249 */
250struct c67x00_device {
251 struct c67x00_hpi hpi;
252 struct c67x00_sie sie[C67X00_SIES];
253 struct platform_device *pdev;
254 struct c67x00_platform_data *pdata;
255};
256
257/* ---------------------------------------------------------------------
258 * Low level interface functions
259 */
260
261/* Host Port Interface (HPI) functions */
262u16 c67x00_ll_hpi_status(struct c67x00_device *dev);
263void c67x00_ll_hpi_reg_init(struct c67x00_device *dev);
264void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie);
265void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie);
266
267/* General functions */
268u16 c67x00_ll_fetch_siemsg(struct c67x00_device *dev, int sie_num);
269u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie);
270void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits);
271u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie);
272void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
273 void *data, int len);
274void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
275 void *data, int len);
276
277/* Host specific functions */
278void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);
279void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);
280void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);
281u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);
282u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);
283void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
284void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);
285
286/* Called by c67x00_irq to handle lcp interrupts */
287void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);
288
289/* Setup and teardown */
290void c67x00_ll_init(struct c67x00_device *dev);
291void c67x00_ll_release(struct c67x00_device *dev);
292int c67x00_ll_reset(struct c67x00_device *dev);
293
294#endif /* _USB_C67X00_H */
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index e819e5359d57..3e69266e1f4d 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -394,7 +394,9 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
394 if (!io->urbs) 394 if (!io->urbs)
395 goto nomem; 395 goto nomem;
396 396
397 urb_flags = URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT; 397 urb_flags = URB_NO_INTERRUPT;
398 if (dma)
399 urb_flags |= URB_NO_TRANSFER_DMA_MAP;
398 if (usb_pipein(pipe)) 400 if (usb_pipein(pipe))
399 urb_flags |= URB_SHORT_NOT_OK; 401 urb_flags |= URB_SHORT_NOT_OK;
400 402
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index f7b54651dd42..6e784d2db423 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -231,6 +231,26 @@ config SUPERH_BUILT_IN_M66592
231 However, this problem is improved if change a value of 231 However, this problem is improved if change a value of
232 NET_IP_ALIGN to 4. 232 NET_IP_ALIGN to 4.
233 233
234config USB_GADGET_PXA27X
235 boolean "PXA 27x"
236 depends on ARCH_PXA && PXA27x
237 help
238 Intel's PXA 27x series XScale ARM v5TE processors include
239 an integrated full speed USB 1.1 device controller.
240
241 It has up to 23 endpoints, as well as endpoint zero (for
242 control transfers).
243
244 Say "y" to link the driver statically, or "m" to build a
245 dynamically linked module called "pxa27x_udc" and force all
246 gadget drivers to also be dynamically linked.
247
248config USB_PXA27X
249 tristate
250 depends on USB_GADGET_PXA27X
251 default USB_GADGET
252 select USB_GADGET_SELECTED
253
234config USB_GADGET_GOKU 254config USB_GADGET_GOKU
235 boolean "Toshiba TC86C001 'Goku-S'" 255 boolean "Toshiba TC86C001 'Goku-S'"
236 depends on PCI 256 depends on PCI
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index c3aab80b6c76..12357255d740 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o
9obj-$(CONFIG_USB_NET2280) += net2280.o 9obj-$(CONFIG_USB_NET2280) += net2280.o
10obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o 10obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o
11obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o 11obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o
12obj-$(CONFIG_USB_PXA27X) += pxa27x_udc.o
12obj-$(CONFIG_USB_GOKU) += goku_udc.o 13obj-$(CONFIG_USB_GOKU) += goku_udc.o
13obj-$(CONFIG_USB_OMAP) += omap_udc.o 14obj-$(CONFIG_USB_OMAP) += omap_udc.o
14obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o 15obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index bb93bdd76593..8d61ea67a817 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -235,10 +235,6 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
235#define DEV_CONFIG_CDC 235#define DEV_CONFIG_CDC
236#endif 236#endif
237 237
238#ifdef CONFIG_USB_GADGET_PXA27X
239#define DEV_CONFIG_CDC
240#endif
241
242#ifdef CONFIG_USB_GADGET_S3C2410 238#ifdef CONFIG_USB_GADGET_S3C2410
243#define DEV_CONFIG_CDC 239#define DEV_CONFIG_CDC
244#endif 240#endif
@@ -270,6 +266,10 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
270#define DEV_CONFIG_SUBSET 266#define DEV_CONFIG_SUBSET
271#endif 267#endif
272 268
269#ifdef CONFIG_USB_GADGET_PXA27X
270#define DEV_CONFIG_SUBSET
271#endif
272
273#ifdef CONFIG_USB_GADGET_SUPERH 273#ifdef CONFIG_USB_GADGET_SUPERH
274#define DEV_CONFIG_SUBSET 274#define DEV_CONFIG_SUBSET
275#endif 275#endif
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index bf3f946fd455..47bb9f09a1aa 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -2307,6 +2307,29 @@ static int halt_bulk_in_endpoint(struct fsg_dev *fsg)
2307 return rc; 2307 return rc;
2308} 2308}
2309 2309
2310static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)
2311{
2312 int rc;
2313
2314 DBG(fsg, "bulk-in set wedge\n");
2315 rc = usb_ep_set_wedge(fsg->bulk_in);
2316 if (rc == -EAGAIN)
2317 VDBG(fsg, "delayed bulk-in endpoint wedge\n");
2318 while (rc != 0) {
2319 if (rc != -EAGAIN) {
2320 WARN(fsg, "usb_ep_set_wedge -> %d\n", rc);
2321 rc = 0;
2322 break;
2323 }
2324
2325 /* Wait for a short time and then try again */
2326 if (msleep_interruptible(100) != 0)
2327 return -EINTR;
2328 rc = usb_ep_set_wedge(fsg->bulk_in);
2329 }
2330 return rc;
2331}
2332
2310static int pad_with_zeros(struct fsg_dev *fsg) 2333static int pad_with_zeros(struct fsg_dev *fsg)
2311{ 2334{
2312 struct fsg_buffhd *bh = fsg->next_buffhd_to_fill; 2335 struct fsg_buffhd *bh = fsg->next_buffhd_to_fill;
@@ -2957,7 +2980,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
2957 * We aren't required to halt the OUT endpoint; instead 2980 * We aren't required to halt the OUT endpoint; instead
2958 * we can simply accept and discard any data received 2981 * we can simply accept and discard any data received
2959 * until the next reset. */ 2982 * until the next reset. */
2960 halt_bulk_in_endpoint(fsg); 2983 wedge_bulk_in_endpoint(fsg);
2961 set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); 2984 set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
2962 return -EINVAL; 2985 return -EINVAL;
2963 } 2986 }
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
new file mode 100644
index 000000000000..75eba202f737
--- /dev/null
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -0,0 +1,2404 @@
1/*
2 * Handles the Intel 27x USB Device Controller (UDC)
3 *
4 * Inspired by original driver by Frank Becker, David Brownell, and others.
5 * Copyright (C) 2008 Robert Jarzmik
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22#include <linux/module.h>
23#include <linux/kernel.h>
24#include <linux/types.h>
25#include <linux/version.h>
26#include <linux/errno.h>
27#include <linux/platform_device.h>
28#include <linux/delay.h>
29#include <linux/list.h>
30#include <linux/interrupt.h>
31#include <linux/proc_fs.h>
32#include <linux/clk.h>
33#include <linux/irq.h>
34
35#include <asm/byteorder.h>
36#include <asm/hardware.h>
37
38#include <linux/usb.h>
39#include <linux/usb/ch9.h>
40#include <linux/usb/gadget.h>
41
42#include <asm/arch/udc.h>
43
44#include "pxa27x_udc.h"
45
46/*
47 * This driver handles the USB Device Controller (UDC) in Intel's PXA 27x
48 * series processors.
49 *
50 * Such controller drivers work with a gadget driver. The gadget driver
51 * returns descriptors, implements configuration and data protocols used
52 * by the host to interact with this device, and allocates endpoints to
53 * the different protocol interfaces. The controller driver virtualizes
54 * usb hardware so that the gadget drivers will be more portable.
55 *
56 * This UDC hardware wants to implement a bit too much USB protocol. The
57 * biggest issues are: that the endpoints have to be set up before the
58 * controller can be enabled (minor, and not uncommon); and each endpoint
59 * can only have one configuration, interface and alternative interface
60 * number (major, and very unusual). Once set up, these cannot be changed
61 * without a controller reset.
62 *
63 * The workaround is to setup all combinations necessary for the gadgets which
64 * will work with this driver. This is done in pxa_udc structure, statically.
65 * See pxa_udc, udc_usb_ep versus pxa_ep, and matching function find_pxa_ep.
66 * (You could modify this if needed. Some drivers have a "fifo_mode" module
67 * parameter to facilitate such changes.)
68 *
69 * The combinations have been tested with these gadgets :
70 * - zero gadget
71 * - file storage gadget
72 * - ether gadget
73 *
74 * The driver doesn't use DMA, only IO access and IRQ callbacks. No use is
75 * made of UDC's double buffering either. USB "On-The-Go" is not implemented.
76 *
77 * All the requests are handled the same way :
78 * - the drivers tries to handle the request directly to the IO
79 * - if the IO fifo is not big enough, the remaining is send/received in
80 * interrupt handling.
81 */
82
83#define DRIVER_VERSION "2008-04-18"
84#define DRIVER_DESC "PXA 27x USB Device Controller driver"
85
86static const char driver_name[] = "pxa27x_udc";
87static struct pxa_udc *the_controller;
88
89static void handle_ep(struct pxa_ep *ep);
90
91/*
92 * Debug filesystem
93 */
94#ifdef CONFIG_USB_GADGET_DEBUG_FS
95
96#include <linux/debugfs.h>
97#include <linux/uaccess.h>
98#include <linux/seq_file.h>
99
100static int state_dbg_show(struct seq_file *s, void *p)
101{
102 struct pxa_udc *udc = s->private;
103 int pos = 0, ret;
104 u32 tmp;
105
106 ret = -ENODEV;
107 if (!udc->driver)
108 goto out;
109
110 /* basic device status */
111 pos += seq_printf(s, DRIVER_DESC "\n"
112 "%s version: %s\nGadget driver: %s\n",
113 driver_name, DRIVER_VERSION,
114 udc->driver ? udc->driver->driver.name : "(none)");
115
116 tmp = udc_readl(udc, UDCCR);
117 pos += seq_printf(s,
118 "udccr=0x%0x(%s%s%s%s%s%s%s%s%s%s), "
119 "con=%d,inter=%d,altinter=%d\n", tmp,
120 (tmp & UDCCR_OEN) ? " oen":"",
121 (tmp & UDCCR_AALTHNP) ? " aalthnp":"",
122 (tmp & UDCCR_AHNP) ? " rem" : "",
123 (tmp & UDCCR_BHNP) ? " rstir" : "",
124 (tmp & UDCCR_DWRE) ? " dwre" : "",
125 (tmp & UDCCR_SMAC) ? " smac" : "",
126 (tmp & UDCCR_EMCE) ? " emce" : "",
127 (tmp & UDCCR_UDR) ? " udr" : "",
128 (tmp & UDCCR_UDA) ? " uda" : "",
129 (tmp & UDCCR_UDE) ? " ude" : "",
130 (tmp & UDCCR_ACN) >> UDCCR_ACN_S,
131 (tmp & UDCCR_AIN) >> UDCCR_AIN_S,
132 (tmp & UDCCR_AAISN) >> UDCCR_AAISN_S);
133 /* registers for device and ep0 */
134 pos += seq_printf(s, "udcicr0=0x%08x udcicr1=0x%08x\n",
135 udc_readl(udc, UDCICR0), udc_readl(udc, UDCICR1));
136 pos += seq_printf(s, "udcisr0=0x%08x udcisr1=0x%08x\n",
137 udc_readl(udc, UDCISR0), udc_readl(udc, UDCISR1));
138 pos += seq_printf(s, "udcfnr=%d\n", udc_readl(udc, UDCFNR));
139 pos += seq_printf(s, "irqs: reset=%lu, suspend=%lu, resume=%lu, "
140 "reconfig=%lu\n",
141 udc->stats.irqs_reset, udc->stats.irqs_suspend,
142 udc->stats.irqs_resume, udc->stats.irqs_reconfig);
143
144 ret = 0;
145out:
146 return ret;
147}
148
149static int queues_dbg_show(struct seq_file *s, void *p)
150{
151 struct pxa_udc *udc = s->private;
152 struct pxa_ep *ep;
153 struct pxa27x_request *req;
154 int pos = 0, i, maxpkt, ret;
155
156 ret = -ENODEV;
157 if (!udc->driver)
158 goto out;
159
160 /* dump endpoint queues */
161 for (i = 0; i < NR_PXA_ENDPOINTS; i++) {
162 ep = &udc->pxa_ep[i];
163 maxpkt = ep->fifo_size;
164 pos += seq_printf(s, "%-12s max_pkt=%d %s\n",
165 EPNAME(ep), maxpkt, "pio");
166
167 if (list_empty(&ep->queue)) {
168 pos += seq_printf(s, "\t(nothing queued)\n");
169 continue;
170 }
171
172 list_for_each_entry(req, &ep->queue, queue) {
173 pos += seq_printf(s, "\treq %p len %d/%d buf %p\n",
174 &req->req, req->req.actual,
175 req->req.length, req->req.buf);
176 }
177 }
178
179 ret = 0;
180out:
181 return ret;
182}
183
184static int eps_dbg_show(struct seq_file *s, void *p)
185{
186 struct pxa_udc *udc = s->private;
187 struct pxa_ep *ep;
188 int pos = 0, i, ret;
189 u32 tmp;
190
191 ret = -ENODEV;
192 if (!udc->driver)
193 goto out;
194
195 ep = &udc->pxa_ep[0];
196 tmp = udc_ep_readl(ep, UDCCSR);
197 pos += seq_printf(s, "udccsr0=0x%03x(%s%s%s%s%s%s%s)\n", tmp,
198 (tmp & UDCCSR0_SA) ? " sa" : "",
199 (tmp & UDCCSR0_RNE) ? " rne" : "",
200 (tmp & UDCCSR0_FST) ? " fst" : "",
201 (tmp & UDCCSR0_SST) ? " sst" : "",
202 (tmp & UDCCSR0_DME) ? " dme" : "",
203 (tmp & UDCCSR0_IPR) ? " ipr" : "",
204 (tmp & UDCCSR0_OPC) ? " opc" : "");
205 for (i = 0; i < NR_PXA_ENDPOINTS; i++) {
206 ep = &udc->pxa_ep[i];
207 tmp = i? udc_ep_readl(ep, UDCCR) : udc_readl(udc, UDCCR);
208 pos += seq_printf(s, "%-12s: "
209 "IN %lu(%lu reqs), OUT %lu(%lu reqs), "
210 "irqs=%lu, udccr=0x%08x, udccsr=0x%03x, "
211 "udcbcr=%d\n",
212 EPNAME(ep),
213 ep->stats.in_bytes, ep->stats.in_ops,
214 ep->stats.out_bytes, ep->stats.out_ops,
215 ep->stats.irqs,
216 tmp, udc_ep_readl(ep, UDCCSR),
217 udc_ep_readl(ep, UDCBCR));
218 }
219
220 ret = 0;
221out:
222 return ret;
223}
224
225static int eps_dbg_open(struct inode *inode, struct file *file)
226{
227 return single_open(file, eps_dbg_show, inode->i_private);
228}
229
230static int queues_dbg_open(struct inode *inode, struct file *file)
231{
232 return single_open(file, queues_dbg_show, inode->i_private);
233}
234
235static int state_dbg_open(struct inode *inode, struct file *file)
236{
237 return single_open(file, state_dbg_show, inode->i_private);
238}
239
240static const struct file_operations state_dbg_fops = {
241 .owner = THIS_MODULE,
242 .open = state_dbg_open,
243 .llseek = seq_lseek,
244 .read = seq_read,
245 .release = single_release,
246};
247
248static const struct file_operations queues_dbg_fops = {
249 .owner = THIS_MODULE,
250 .open = queues_dbg_open,
251 .llseek = seq_lseek,
252 .read = seq_read,
253 .release = single_release,
254};
255
256static const struct file_operations eps_dbg_fops = {
257 .owner = THIS_MODULE,
258 .open = eps_dbg_open,
259 .llseek = seq_lseek,
260 .read = seq_read,
261 .release = single_release,
262};
263
264static void pxa_init_debugfs(struct pxa_udc *udc)
265{
266 struct dentry *root, *state, *queues, *eps;
267
268 root = debugfs_create_dir(udc->gadget.name, NULL);
269 if (IS_ERR(root) || !root)
270 goto err_root;
271
272 state = debugfs_create_file("udcstate", 0400, root, udc,
273 &state_dbg_fops);
274 if (!state)
275 goto err_state;
276 queues = debugfs_create_file("queues", 0400, root, udc,
277 &queues_dbg_fops);
278 if (!queues)
279 goto err_queues;
280 eps = debugfs_create_file("epstate", 0400, root, udc,
281 &eps_dbg_fops);
282 if (!queues)
283 goto err_eps;
284
285 udc->debugfs_root = root;
286 udc->debugfs_state = state;
287 udc->debugfs_queues = queues;
288 udc->debugfs_eps = eps;
289 return;
290err_eps:
291 debugfs_remove(eps);
292err_queues:
293 debugfs_remove(queues);
294err_state:
295 debugfs_remove(root);
296err_root:
297 dev_err(udc->dev, "debugfs is not available\n");
298}
299
300static void pxa_cleanup_debugfs(struct pxa_udc *udc)
301{
302 debugfs_remove(udc->debugfs_eps);
303 debugfs_remove(udc->debugfs_queues);
304 debugfs_remove(udc->debugfs_state);
305 debugfs_remove(udc->debugfs_root);
306 udc->debugfs_eps = NULL;
307 udc->debugfs_queues = NULL;
308 udc->debugfs_state = NULL;
309 udc->debugfs_root = NULL;
310}
311
312#else
313static inline void pxa_init_debugfs(struct pxa_udc *udc)
314{
315}
316
317static inline void pxa_cleanup_debugfs(struct pxa_udc *udc)
318{
319}
320#endif
321
322/**
323 * is_match_usb_pxa - check if usb_ep and pxa_ep match
324 * @udc_usb_ep: usb endpoint
325 * @ep: pxa endpoint
326 * @config: configuration required in pxa_ep
327 * @interface: interface required in pxa_ep
328 * @altsetting: altsetting required in pxa_ep
329 *
330 * Returns 1 if all criteria match between pxa and usb endpoint, 0 otherwise
331 */
332static int is_match_usb_pxa(struct udc_usb_ep *udc_usb_ep, struct pxa_ep *ep,
333 int config, int interface, int altsetting)
334{
335 if (usb_endpoint_num(&udc_usb_ep->desc) != ep->addr)
336 return 0;
337 if (usb_endpoint_dir_in(&udc_usb_ep->desc) != ep->dir_in)
338 return 0;
339 if (usb_endpoint_type(&udc_usb_ep->desc) != ep->type)
340 return 0;
341 if ((ep->config != config) || (ep->interface != interface)
342 || (ep->alternate != altsetting))
343 return 0;
344 return 1;
345}
346
347/**
348 * find_pxa_ep - find pxa_ep structure matching udc_usb_ep
349 * @udc: pxa udc
350 * @udc_usb_ep: udc_usb_ep structure
351 *
352 * Match udc_usb_ep and all pxa_ep available, to see if one matches.
353 * This is necessary because of the strong pxa hardware restriction requiring
354 * that once pxa endpoints are initialized, their configuration is freezed, and
355 * no change can be made to their address, direction, or in which configuration,
356 * interface or altsetting they are active ... which differs from more usual
357 * models which have endpoints be roughly just addressable fifos, and leave
358 * configuration events up to gadget drivers (like all control messages).
359 *
360 * Note that there is still a blurred point here :
361 * - we rely on UDCCR register "active interface" and "active altsetting".
362 * This is a nonsense in regard of USB spec, where multiple interfaces are
363 * active at the same time.
364 * - if we knew for sure that the pxa can handle multiple interface at the
365 * same time, assuming Intel's Developer Guide is wrong, this function
366 * should be reviewed, and a cache of couples (iface, altsetting) should
367 * be kept in the pxa_udc structure. In this case this function would match
368 * against the cache of couples instead of the "last altsetting" set up.
369 *
370 * Returns the matched pxa_ep structure or NULL if none found
371 */
372static struct pxa_ep *find_pxa_ep(struct pxa_udc *udc,
373 struct udc_usb_ep *udc_usb_ep)
374{
375 int i;
376 struct pxa_ep *ep;
377 int cfg = udc->config;
378 int iface = udc->last_interface;
379 int alt = udc->last_alternate;
380
381 if (udc_usb_ep == &udc->udc_usb_ep[0])
382 return &udc->pxa_ep[0];
383
384 for (i = 1; i < NR_PXA_ENDPOINTS; i++) {
385 ep = &udc->pxa_ep[i];
386 if (is_match_usb_pxa(udc_usb_ep, ep, cfg, iface, alt))
387 return ep;
388 }
389 return NULL;
390}
391
392/**
393 * update_pxa_ep_matches - update pxa_ep cached values in all udc_usb_ep
394 * @udc: pxa udc
395 *
396 * Context: in_interrupt()
397 *
398 * Updates all pxa_ep fields in udc_usb_ep structures, if this field was
399 * previously set up (and is not NULL). The update is necessary is a
400 * configuration change or altsetting change was issued by the USB host.
401 */
402static void update_pxa_ep_matches(struct pxa_udc *udc)
403{
404 int i;
405 struct udc_usb_ep *udc_usb_ep;
406
407 for (i = 1; i < NR_USB_ENDPOINTS; i++) {
408 udc_usb_ep = &udc->udc_usb_ep[i];
409 if (udc_usb_ep->pxa_ep)
410 udc_usb_ep->pxa_ep = find_pxa_ep(udc, udc_usb_ep);
411 }
412}
413
414/**
415 * pio_irq_enable - Enables irq generation for one endpoint
416 * @ep: udc endpoint
417 */
418static void pio_irq_enable(struct pxa_ep *ep)
419{
420 struct pxa_udc *udc = ep->dev;
421 int index = EPIDX(ep);
422 u32 udcicr0 = udc_readl(udc, UDCICR0);
423 u32 udcicr1 = udc_readl(udc, UDCICR1);
424
425 if (index < 16)
426 udc_writel(udc, UDCICR0, udcicr0 | (3 << (index * 2)));
427 else
428 udc_writel(udc, UDCICR1, udcicr1 | (3 << ((index - 16) * 2)));
429}
430
431/**
432 * pio_irq_disable - Disables irq generation for one endpoint
433 * @ep: udc endpoint
434 * @index: endpoint number
435 */
436static void pio_irq_disable(struct pxa_ep *ep)
437{
438 struct pxa_udc *udc = ep->dev;
439 int index = EPIDX(ep);
440 u32 udcicr0 = udc_readl(udc, UDCICR0);
441 u32 udcicr1 = udc_readl(udc, UDCICR1);
442
443 if (index < 16)
444 udc_writel(udc, UDCICR0, udcicr0 & ~(3 << (index * 2)));
445 else
446 udc_writel(udc, UDCICR1, udcicr1 & ~(3 << ((index - 16) * 2)));
447}
448
449/**
450 * udc_set_mask_UDCCR - set bits in UDCCR
451 * @udc: udc device
452 * @mask: bits to set in UDCCR
453 *
454 * Sets bits in UDCCR, leaving DME and FST bits as they were.
455 */
456static inline void udc_set_mask_UDCCR(struct pxa_udc *udc, int mask)
457{
458 u32 udccr = udc_readl(udc, UDCCR);
459 udc_writel(udc, UDCCR,
460 (udccr & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS));
461}
462
463/**
464 * udc_clear_mask_UDCCR - clears bits in UDCCR
465 * @udc: udc device
466 * @mask: bit to clear in UDCCR
467 *
468 * Clears bits in UDCCR, leaving DME and FST bits as they were.
469 */
470static inline void udc_clear_mask_UDCCR(struct pxa_udc *udc, int mask)
471{
472 u32 udccr = udc_readl(udc, UDCCR);
473 udc_writel(udc, UDCCR,
474 (udccr & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS));
475}
476
477/**
478 * ep_count_bytes_remain - get how many bytes in udc endpoint
479 * @ep: udc endpoint
480 *
481 * Returns number of bytes in OUT fifos. Broken for IN fifos (-EOPNOTSUPP)
482 */
483static int ep_count_bytes_remain(struct pxa_ep *ep)
484{
485 if (ep->dir_in)
486 return -EOPNOTSUPP;
487 return udc_ep_readl(ep, UDCBCR) & 0x3ff;
488}
489
490/**
491 * ep_is_empty - checks if ep has byte ready for reading
492 * @ep: udc endpoint
493 *
494 * If endpoint is the control endpoint, checks if there are bytes in the
495 * control endpoint fifo. If endpoint is a data endpoint, checks if bytes
496 * are ready for reading on OUT endpoint.
497 *
498 * Returns 0 if ep not empty, 1 if ep empty, -EOPNOTSUPP if IN endpoint
499 */
500static int ep_is_empty(struct pxa_ep *ep)
501{
502 int ret;
503
504 if (!is_ep0(ep) && ep->dir_in)
505 return -EOPNOTSUPP;
506 if (is_ep0(ep))
507 ret = !(udc_ep_readl(ep, UDCCSR) & UDCCSR0_RNE);
508 else
509 ret = !(udc_ep_readl(ep, UDCCSR) & UDCCSR_BNE);
510 return ret;
511}
512
513/**
514 * ep_is_full - checks if ep has place to write bytes
515 * @ep: udc endpoint
516 *
517 * If endpoint is not the control endpoint and is an IN endpoint, checks if
518 * there is place to write bytes into the endpoint.
519 *
520 * Returns 0 if ep not full, 1 if ep full, -EOPNOTSUPP if OUT endpoint
521 */
522static int ep_is_full(struct pxa_ep *ep)
523{
524 if (is_ep0(ep))
525 return (udc_ep_readl(ep, UDCCSR) & UDCCSR0_IPR);
526 if (!ep->dir_in)
527 return -EOPNOTSUPP;
528 return (!(udc_ep_readl(ep, UDCCSR) & UDCCSR_BNF));
529}
530
531/**
532 * epout_has_pkt - checks if OUT endpoint fifo has a packet available
533 * @ep: pxa endpoint
534 *
535 * Returns 1 if a complete packet is available, 0 if not, -EOPNOTSUPP for IN ep.
536 */
537static int epout_has_pkt(struct pxa_ep *ep)
538{
539 if (!is_ep0(ep) && ep->dir_in)
540 return -EOPNOTSUPP;
541 if (is_ep0(ep))
542 return (udc_ep_readl(ep, UDCCSR) & UDCCSR0_OPC);
543 return (udc_ep_readl(ep, UDCCSR) & UDCCSR_PC);
544}
545
546/**
547 * set_ep0state - Set ep0 automata state
548 * @dev: udc device
549 * @state: state
550 */
551static void set_ep0state(struct pxa_udc *udc, int state)
552{
553 struct pxa_ep *ep = &udc->pxa_ep[0];
554 char *old_stname = EP0_STNAME(udc);
555
556 udc->ep0state = state;
557 ep_dbg(ep, "state=%s->%s, udccsr0=0x%03x, udcbcr=%d\n", old_stname,
558 EP0_STNAME(udc), udc_ep_readl(ep, UDCCSR),
559 udc_ep_readl(ep, UDCBCR));
560}
561
562/**
563 * ep0_idle - Put control endpoint into idle state
564 * @dev: udc device
565 */
566static void ep0_idle(struct pxa_udc *dev)
567{
568 set_ep0state(dev, WAIT_FOR_SETUP);
569}
570
571/**
572 * inc_ep_stats_reqs - Update ep stats counts
573 * @ep: physical endpoint
574 * @req: usb request
575 * @is_in: ep direction (USB_DIR_IN or 0)
576 *
577 */
578static void inc_ep_stats_reqs(struct pxa_ep *ep, int is_in)
579{
580 if (is_in)
581 ep->stats.in_ops++;
582 else
583 ep->stats.out_ops++;
584}
585
586/**
587 * inc_ep_stats_bytes - Update ep stats counts
588 * @ep: physical endpoint
589 * @count: bytes transfered on endpoint
590 * @req: usb request
591 * @is_in: ep direction (USB_DIR_IN or 0)
592 */
593static void inc_ep_stats_bytes(struct pxa_ep *ep, int count, int is_in)
594{
595 if (is_in)
596 ep->stats.in_bytes += count;
597 else
598 ep->stats.out_bytes += count;
599}
600
601/**
602 * pxa_ep_setup - Sets up an usb physical endpoint
603 * @ep: pxa27x physical endpoint
604 *
605 * Find the physical pxa27x ep, and setup its UDCCR
606 */
607static __init void pxa_ep_setup(struct pxa_ep *ep)
608{
609 u32 new_udccr;
610
611 new_udccr = ((ep->config << UDCCONR_CN_S) & UDCCONR_CN)
612 | ((ep->interface << UDCCONR_IN_S) & UDCCONR_IN)
613 | ((ep->alternate << UDCCONR_AISN_S) & UDCCONR_AISN)
614 | ((EPADDR(ep) << UDCCONR_EN_S) & UDCCONR_EN)
615 | ((EPXFERTYPE(ep) << UDCCONR_ET_S) & UDCCONR_ET)
616 | ((ep->dir_in) ? UDCCONR_ED : 0)
617 | ((ep->fifo_size << UDCCONR_MPS_S) & UDCCONR_MPS)
618 | UDCCONR_EE;
619
620 udc_ep_writel(ep, UDCCR, new_udccr);
621}
622
623/**
624 * pxa_eps_setup - Sets up all usb physical endpoints
625 * @dev: udc device
626 *
627 * Setup all pxa physical endpoints, except ep0
628 */
629static __init void pxa_eps_setup(struct pxa_udc *dev)
630{
631 unsigned int i;
632
633 dev_dbg(dev->dev, "%s: dev=%p\n", __func__, dev);
634
635 for (i = 1; i < NR_PXA_ENDPOINTS; i++)
636 pxa_ep_setup(&dev->pxa_ep[i]);
637}
638
639/**
640 * pxa_ep_alloc_request - Allocate usb request
641 * @_ep: usb endpoint
642 * @gfp_flags:
643 *
644 * For the pxa27x, these can just wrap kmalloc/kfree. gadget drivers
645 * must still pass correctly initialized endpoints, since other controller
646 * drivers may care about how it's currently set up (dma issues etc).
647 */
648static struct usb_request *
649pxa_ep_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
650{
651 struct pxa27x_request *req;
652
653 req = kzalloc(sizeof *req, gfp_flags);
654 if (!req || !_ep)
655 return NULL;
656
657 INIT_LIST_HEAD(&req->queue);
658 req->in_use = 0;
659 req->udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
660
661 return &req->req;
662}
663
664/**
665 * pxa_ep_free_request - Free usb request
666 * @_ep: usb endpoint
667 * @_req: usb request
668 *
669 * Wrapper around kfree to free _req
670 */
671static void pxa_ep_free_request(struct usb_ep *_ep, struct usb_request *_req)
672{
673 struct pxa27x_request *req;
674
675 req = container_of(_req, struct pxa27x_request, req);
676 WARN_ON(!list_empty(&req->queue));
677 kfree(req);
678}
679
680/**
681 * ep_add_request - add a request to the endpoint's queue
682 * @ep: usb endpoint
683 * @req: usb request
684 *
685 * Context: ep->lock held
686 *
687 * Queues the request in the endpoint's queue, and enables the interrupts
688 * on the endpoint.
689 */
690static void ep_add_request(struct pxa_ep *ep, struct pxa27x_request *req)
691{
692 if (unlikely(!req))
693 return;
694 ep_vdbg(ep, "req:%p, lg=%d, udccsr=0x%03x\n", req,
695 req->req.length, udc_ep_readl(ep, UDCCSR));
696
697 req->in_use = 1;
698 list_add_tail(&req->queue, &ep->queue);
699 pio_irq_enable(ep);
700}
701
702/**
703 * ep_del_request - removes a request from the endpoint's queue
704 * @ep: usb endpoint
705 * @req: usb request
706 *
707 * Context: ep->lock held
708 *
709 * Unqueue the request from the endpoint's queue. If there are no more requests
710 * on the endpoint, and if it's not the control endpoint, interrupts are
711 * disabled on the endpoint.
712 */
713static void ep_del_request(struct pxa_ep *ep, struct pxa27x_request *req)
714{
715 if (unlikely(!req))
716 return;
717 ep_vdbg(ep, "req:%p, lg=%d, udccsr=0x%03x\n", req,
718 req->req.length, udc_ep_readl(ep, UDCCSR));
719
720 list_del_init(&req->queue);
721 req->in_use = 0;
722 if (!is_ep0(ep) && list_empty(&ep->queue))
723 pio_irq_disable(ep);
724}
725
726/**
727 * req_done - Complete an usb request
728 * @ep: pxa physical endpoint
729 * @req: pxa request
730 * @status: usb request status sent to gadget API
731 *
732 * Context: ep->lock held
733 *
734 * Retire a pxa27x usb request. Endpoint must be locked.
735 */
736static void req_done(struct pxa_ep *ep, struct pxa27x_request *req, int status)
737{
738 ep_del_request(ep, req);
739 if (likely(req->req.status == -EINPROGRESS))
740 req->req.status = status;
741 else
742 status = req->req.status;
743
744 if (status && status != -ESHUTDOWN)
745 ep_dbg(ep, "complete req %p stat %d len %u/%u\n",
746 &req->req, status,
747 req->req.actual, req->req.length);
748
749 req->req.complete(&req->udc_usb_ep->usb_ep, &req->req);
750}
751
752/**
753 * ep_end_out_req - Ends control endpoint in request
754 * @ep: physical endpoint
755 * @req: pxa request
756 *
757 * Context: ep->lock held
758 *
759 * Ends endpoint in request (completes usb request).
760 */
761static void ep_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req)
762{
763 inc_ep_stats_reqs(ep, !USB_DIR_IN);
764 req_done(ep, req, 0);
765}
766
767/**
768 * ep0_end_out_req - Ends control endpoint in request (ends data stage)
769 * @ep: physical endpoint
770 * @req: pxa request
771 *
772 * Context: ep->lock held
773 *
774 * Ends control endpoint in request (completes usb request), and puts
775 * control endpoint into idle state
776 */
777static void ep0_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req)
778{
779 set_ep0state(ep->dev, OUT_STATUS_STAGE);
780 ep_end_out_req(ep, req);
781 ep0_idle(ep->dev);
782}
783
784/**
785 * ep_end_in_req - Ends endpoint out request
786 * @ep: physical endpoint
787 * @req: pxa request
788 *
789 * Context: ep->lock held
790 *
791 * Ends endpoint out request (completes usb request).
792 */
793static void ep_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req)
794{
795 inc_ep_stats_reqs(ep, USB_DIR_IN);
796 req_done(ep, req, 0);
797}
798
799/**
800 * ep0_end_in_req - Ends control endpoint out request (ends data stage)
801 * @ep: physical endpoint
802 * @req: pxa request
803 *
804 * Context: ep->lock held
805 *
806 * Ends control endpoint out request (completes usb request), and puts
807 * control endpoint into status state
808 */
809static void ep0_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req)
810{
811 struct pxa_udc *udc = ep->dev;
812
813 set_ep0state(udc, IN_STATUS_STAGE);
814 ep_end_in_req(ep, req);
815}
816
817/**
818 * nuke - Dequeue all requests
819 * @ep: pxa endpoint
820 * @status: usb request status
821 *
822 * Context: ep->lock held
823 *
824 * Dequeues all requests on an endpoint. As a side effect, interrupts will be
825 * disabled on that endpoint (because no more requests).
826 */
827static void nuke(struct pxa_ep *ep, int status)
828{
829 struct pxa27x_request *req;
830
831 while (!list_empty(&ep->queue)) {
832 req = list_entry(ep->queue.next, struct pxa27x_request, queue);
833 req_done(ep, req, status);
834 }
835}
836
837/**
838 * read_packet - transfer 1 packet from an OUT endpoint into request
839 * @ep: pxa physical endpoint
840 * @req: usb request
841 *
842 * Takes bytes from OUT endpoint and transfers them info the usb request.
843 * If there is less space in request than bytes received in OUT endpoint,
844 * bytes are left in the OUT endpoint.
845 *
846 * Returns how many bytes were actually transfered
847 */
848static int read_packet(struct pxa_ep *ep, struct pxa27x_request *req)
849{
850 u32 *buf;
851 int bytes_ep, bufferspace, count, i;
852
853 bytes_ep = ep_count_bytes_remain(ep);
854 bufferspace = req->req.length - req->req.actual;
855
856 buf = (u32 *)(req->req.buf + req->req.actual);
857 prefetchw(buf);
858
859 if (likely(!ep_is_empty(ep)))
860 count = min(bytes_ep, bufferspace);
861 else /* zlp */
862 count = 0;
863
864 for (i = count; i > 0; i -= 4)
865 *buf++ = udc_ep_readl(ep, UDCDR);
866 req->req.actual += count;
867
868 udc_ep_writel(ep, UDCCSR, UDCCSR_PC);
869
870 return count;
871}
872
873/**
874 * write_packet - transfer 1 packet from request into an IN endpoint
875 * @ep: pxa physical endpoint
876 * @req: usb request
877 * @max: max bytes that fit into endpoint
878 *
879 * Takes bytes from usb request, and transfers them into the physical
880 * endpoint. If there are no bytes to transfer, doesn't write anything
881 * to physical endpoint.
882 *
883 * Returns how many bytes were actually transfered.
884 */
885static int write_packet(struct pxa_ep *ep, struct pxa27x_request *req,
886 unsigned int max)
887{
888 int length, count, remain, i;
889 u32 *buf;
890 u8 *buf_8;
891
892 buf = (u32 *)(req->req.buf + req->req.actual);
893 prefetch(buf);
894
895 length = min(req->req.length - req->req.actual, max);
896 req->req.actual += length;
897
898 remain = length & 0x3;
899 count = length & ~(0x3);
900 for (i = count; i > 0 ; i -= 4)
901 udc_ep_writel(ep, UDCDR, *buf++);
902
903 buf_8 = (u8 *)buf;
904 for (i = remain; i > 0; i--)
905 udc_ep_writeb(ep, UDCDR, *buf_8++);
906
907 ep_vdbg(ep, "length=%d+%d, udccsr=0x%03x\n", count, remain,
908 udc_ep_readl(ep, UDCCSR));
909
910 return length;
911}
912
913/**
914 * read_fifo - Transfer packets from OUT endpoint into usb request
915 * @ep: pxa physical endpoint
916 * @req: usb request
917 *
918 * Context: callable when in_interrupt()
919 *
920 * Unload as many packets as possible from the fifo we use for usb OUT
921 * transfers and put them into the request. Caller should have made sure
922 * there's at least one packet ready.
923 * Doesn't complete the request, that's the caller's job
924 *
925 * Returns 1 if the request completed, 0 otherwise
926 */
927static int read_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
928{
929 int count, is_short, completed = 0;
930
931 while (epout_has_pkt(ep)) {
932 count = read_packet(ep, req);
933 inc_ep_stats_bytes(ep, count, !USB_DIR_IN);
934
935 is_short = (count < ep->fifo_size);
936 ep_dbg(ep, "read udccsr:%03x, count:%d bytes%s req %p %d/%d\n",
937 udc_ep_readl(ep, UDCCSR), count, is_short ? "/S" : "",
938 &req->req, req->req.actual, req->req.length);
939
940 /* completion */
941 if (is_short || req->req.actual == req->req.length) {
942 completed = 1;
943 break;
944 }
945 /* finished that packet. the next one may be waiting... */
946 }
947 return completed;
948}
949
950/**
951 * write_fifo - transfer packets from usb request into an IN endpoint
952 * @ep: pxa physical endpoint
953 * @req: pxa usb request
954 *
955 * Write to an IN endpoint fifo, as many packets as possible.
956 * irqs will use this to write the rest later.
957 * caller guarantees at least one packet buffer is ready (or a zlp).
958 * Doesn't complete the request, that's the caller's job
959 *
960 * Returns 1 if request fully transfered, 0 if partial transfer
961 */
962static int write_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
963{
964 unsigned max;
965 int count, is_short, is_last = 0, completed = 0, totcount = 0;
966 u32 udccsr;
967
968 max = ep->fifo_size;
969 do {
970 is_short = 0;
971
972 udccsr = udc_ep_readl(ep, UDCCSR);
973 if (udccsr & UDCCSR_PC) {
974 ep_vdbg(ep, "Clearing Transmit Complete, udccsr=%x\n",
975 udccsr);
976 udc_ep_writel(ep, UDCCSR, UDCCSR_PC);
977 }
978 if (udccsr & UDCCSR_TRN) {
979 ep_vdbg(ep, "Clearing Underrun on, udccsr=%x\n",
980 udccsr);
981 udc_ep_writel(ep, UDCCSR, UDCCSR_TRN);
982 }
983
984 count = write_packet(ep, req, max);
985 inc_ep_stats_bytes(ep, count, USB_DIR_IN);
986 totcount += count;
987
988 /* last packet is usually short (or a zlp) */
989 if (unlikely(count < max)) {
990 is_last = 1;
991 is_short = 1;
992 } else {
993 if (likely(req->req.length > req->req.actual)
994 || req->req.zero)
995 is_last = 0;
996 else
997 is_last = 1;
998 /* interrupt/iso maxpacket may not fill the fifo */
999 is_short = unlikely(max < ep->fifo_size);
1000 }
1001
1002 if (is_short)
1003 udc_ep_writel(ep, UDCCSR, UDCCSR_SP);
1004
1005 /* requests complete when all IN data is in the FIFO */
1006 if (is_last) {
1007 completed = 1;
1008 break;
1009 }
1010 } while (!ep_is_full(ep));
1011
1012 ep_dbg(ep, "wrote count:%d bytes%s%s, left:%d req=%p\n",
1013 totcount, is_last ? "/L" : "", is_short ? "/S" : "",
1014 req->req.length - req->req.actual, &req->req);
1015
1016 return completed;
1017}
1018
1019/**
1020 * read_ep0_fifo - Transfer packets from control endpoint into usb request
1021 * @ep: control endpoint
1022 * @req: pxa usb request
1023 *
1024 * Special ep0 version of the above read_fifo. Reads as many bytes from control
1025 * endpoint as can be read, and stores them into usb request (limited by request
1026 * maximum length).
1027 *
1028 * Returns 0 if usb request only partially filled, 1 if fully filled
1029 */
1030static int read_ep0_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
1031{
1032 int count, is_short, completed = 0;
1033
1034 while (epout_has_pkt(ep)) {
1035 count = read_packet(ep, req);
1036 udc_ep_writel(ep, UDCCSR, UDCCSR0_OPC);
1037 inc_ep_stats_bytes(ep, count, !USB_DIR_IN);
1038
1039 is_short = (count < ep->fifo_size);
1040 ep_dbg(ep, "read udccsr:%03x, count:%d bytes%s req %p %d/%d\n",
1041 udc_ep_readl(ep, UDCCSR), count, is_short ? "/S" : "",
1042 &req->req, req->req.actual, req->req.length);
1043
1044 if (is_short || req->req.actual >= req->req.length) {
1045 completed = 1;
1046 break;
1047 }
1048 }
1049
1050 return completed;
1051}
1052
1053/**
1054 * write_ep0_fifo - Send a request to control endpoint (ep0 in)
1055 * @ep: control endpoint
1056 * @req: request
1057 *
1058 * Context: callable when in_interrupt()
1059 *
1060 * Sends a request (or a part of the request) to the control endpoint (ep0 in).
1061 * If the request doesn't fit, the remaining part will be sent from irq.
1062 * The request is considered fully written only if either :
1063 * - last write transfered all remaining bytes, but fifo was not fully filled
1064 * - last write was a 0 length write
1065 *
1066 * Returns 1 if request fully written, 0 if request only partially sent
1067 */
1068static int write_ep0_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
1069{
1070 unsigned count;
1071 int is_last, is_short;
1072
1073 count = write_packet(ep, req, EP0_FIFO_SIZE);
1074 inc_ep_stats_bytes(ep, count, USB_DIR_IN);
1075
1076 is_short = (count < EP0_FIFO_SIZE);
1077 is_last = ((count == 0) || (count < EP0_FIFO_SIZE));
1078
1079 /* Sends either a short packet or a 0 length packet */
1080 if (unlikely(is_short))
1081 udc_ep_writel(ep, UDCCSR, UDCCSR0_IPR);
1082
1083 ep_dbg(ep, "in %d bytes%s%s, %d left, req=%p, udccsr0=0x%03x\n",
1084 count, is_short ? "/S" : "", is_last ? "/L" : "",
1085 req->req.length - req->req.actual,
1086 &req->req, udc_ep_readl(ep, UDCCSR));
1087
1088 return is_last;
1089}
1090
1091/**
1092 * pxa_ep_queue - Queue a request into an IN endpoint
1093 * @_ep: usb endpoint
1094 * @_req: usb request
1095 * @gfp_flags: flags
1096 *
1097 * Context: normally called when !in_interrupt, but callable when in_interrupt()
1098 * in the special case of ep0 setup :
1099 * (irq->handle_ep0_ctrl_req->gadget_setup->pxa_ep_queue)
1100 *
1101 * Returns 0 if succedeed, error otherwise
1102 */
1103static int pxa_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
1104 gfp_t gfp_flags)
1105{
1106 struct udc_usb_ep *udc_usb_ep;
1107 struct pxa_ep *ep;
1108 struct pxa27x_request *req;
1109 struct pxa_udc *dev;
1110 unsigned long flags;
1111 int rc = 0;
1112 int is_first_req;
1113 unsigned length;
1114
1115 req = container_of(_req, struct pxa27x_request, req);
1116 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1117
1118 if (unlikely(!_req || !_req->complete || !_req->buf))
1119 return -EINVAL;
1120
1121 if (unlikely(!_ep))
1122 return -EINVAL;
1123
1124 dev = udc_usb_ep->dev;
1125 ep = udc_usb_ep->pxa_ep;
1126 if (unlikely(!ep))
1127 return -EINVAL;
1128
1129 dev = ep->dev;
1130 if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) {
1131 ep_dbg(ep, "bogus device state\n");
1132 return -ESHUTDOWN;
1133 }
1134
1135 /* iso is always one packet per request, that's the only way
1136 * we can report per-packet status. that also helps with dma.
1137 */
1138 if (unlikely(EPXFERTYPE_is_ISO(ep)
1139 && req->req.length > ep->fifo_size))
1140 return -EMSGSIZE;
1141
1142 spin_lock_irqsave(&ep->lock, flags);
1143
1144 is_first_req = list_empty(&ep->queue);
1145 ep_dbg(ep, "queue req %p(first=%s), len %d buf %p\n",
1146 _req, is_first_req ? "yes" : "no",
1147 _req->length, _req->buf);
1148
1149 if (!ep->enabled) {
1150 _req->status = -ESHUTDOWN;
1151 rc = -ESHUTDOWN;
1152 goto out;
1153 }
1154
1155 if (req->in_use) {
1156 ep_err(ep, "refusing to queue req %p (already queued)\n", req);
1157 goto out;
1158 }
1159
1160 length = _req->length;
1161 _req->status = -EINPROGRESS;
1162 _req->actual = 0;
1163
1164 ep_add_request(ep, req);
1165
1166 if (is_ep0(ep)) {
1167 switch (dev->ep0state) {
1168 case WAIT_ACK_SET_CONF_INTERF:
1169 if (length == 0) {
1170 ep_end_in_req(ep, req);
1171 } else {
1172 ep_err(ep, "got a request of %d bytes while"
1173 "in state WATI_ACK_SET_CONF_INTERF\n",
1174 length);
1175 ep_del_request(ep, req);
1176 rc = -EL2HLT;
1177 }
1178 ep0_idle(ep->dev);
1179 break;
1180 case IN_DATA_STAGE:
1181 if (!ep_is_full(ep))
1182 if (write_ep0_fifo(ep, req))
1183 ep0_end_in_req(ep, req);
1184 break;
1185 case OUT_DATA_STAGE:
1186 if ((length == 0) || !epout_has_pkt(ep))
1187 if (read_ep0_fifo(ep, req))
1188 ep0_end_out_req(ep, req);
1189 break;
1190 default:
1191 ep_err(ep, "odd state %s to send me a request\n",
1192 EP0_STNAME(ep->dev));
1193 ep_del_request(ep, req);
1194 rc = -EL2HLT;
1195 break;
1196 }
1197 } else {
1198 handle_ep(ep);
1199 }
1200
1201out:
1202 spin_unlock_irqrestore(&ep->lock, flags);
1203 return rc;
1204}
1205
1206/**
1207 * pxa_ep_dequeue - Dequeue one request
1208 * @_ep: usb endpoint
1209 * @_req: usb request
1210 *
1211 * Return 0 if no error, -EINVAL or -ECONNRESET otherwise
1212 */
1213static int pxa_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
1214{
1215 struct pxa_ep *ep;
1216 struct udc_usb_ep *udc_usb_ep;
1217 struct pxa27x_request *req;
1218 unsigned long flags;
1219 int rc;
1220
1221 if (!_ep)
1222 return -EINVAL;
1223 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1224 ep = udc_usb_ep->pxa_ep;
1225 if (!ep || is_ep0(ep))
1226 return -EINVAL;
1227
1228 spin_lock_irqsave(&ep->lock, flags);
1229
1230 /* make sure it's actually queued on this endpoint */
1231 list_for_each_entry(req, &ep->queue, queue) {
1232 if (&req->req == _req)
1233 break;
1234 }
1235
1236 rc = -EINVAL;
1237 if (&req->req != _req)
1238 goto out;
1239
1240 rc = 0;
1241 req_done(ep, req, -ECONNRESET);
1242out:
1243 spin_unlock_irqrestore(&ep->lock, flags);
1244 return rc;
1245}
1246
1247/**
1248 * pxa_ep_set_halt - Halts operations on one endpoint
1249 * @_ep: usb endpoint
1250 * @value:
1251 *
1252 * Returns 0 if no error, -EINVAL, -EROFS, -EAGAIN otherwise
1253 */
1254static int pxa_ep_set_halt(struct usb_ep *_ep, int value)
1255{
1256 struct pxa_ep *ep;
1257 struct udc_usb_ep *udc_usb_ep;
1258 unsigned long flags;
1259 int rc;
1260
1261
1262 if (!_ep)
1263 return -EINVAL;
1264 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1265 ep = udc_usb_ep->pxa_ep;
1266 if (!ep || is_ep0(ep))
1267 return -EINVAL;
1268
1269 if (value == 0) {
1270 /*
1271 * This path (reset toggle+halt) is needed to implement
1272 * SET_INTERFACE on normal hardware. but it can't be
1273 * done from software on the PXA UDC, and the hardware
1274 * forgets to do it as part of SET_INTERFACE automagic.
1275 */
1276 ep_dbg(ep, "only host can clear halt\n");
1277 return -EROFS;
1278 }
1279
1280 spin_lock_irqsave(&ep->lock, flags);
1281
1282 rc = -EAGAIN;
1283 if (ep->dir_in && (ep_is_full(ep) || !list_empty(&ep->queue)))
1284 goto out;
1285
1286 /* FST, FEF bits are the same for control and non control endpoints */
1287 rc = 0;
1288 udc_ep_writel(ep, UDCCSR, UDCCSR_FST | UDCCSR_FEF);
1289 if (is_ep0(ep))
1290 set_ep0state(ep->dev, STALL);
1291
1292out:
1293 spin_unlock_irqrestore(&ep->lock, flags);
1294 return rc;
1295}
1296
1297/**
1298 * pxa_ep_fifo_status - Get how many bytes in physical endpoint
1299 * @_ep: usb endpoint
1300 *
1301 * Returns number of bytes in OUT fifos. Broken for IN fifos.
1302 */
1303static int pxa_ep_fifo_status(struct usb_ep *_ep)
1304{
1305 struct pxa_ep *ep;
1306 struct udc_usb_ep *udc_usb_ep;
1307
1308 if (!_ep)
1309 return -ENODEV;
1310 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1311 ep = udc_usb_ep->pxa_ep;
1312 if (!ep || is_ep0(ep))
1313 return -ENODEV;
1314
1315 if (ep->dir_in)
1316 return -EOPNOTSUPP;
1317 if (ep->dev->gadget.speed == USB_SPEED_UNKNOWN || ep_is_empty(ep))
1318 return 0;
1319 else
1320 return ep_count_bytes_remain(ep) + 1;
1321}
1322
1323/**
1324 * pxa_ep_fifo_flush - Flushes one endpoint
1325 * @_ep: usb endpoint
1326 *
1327 * Discards all data in one endpoint(IN or OUT), except control endpoint.
1328 */
1329static void pxa_ep_fifo_flush(struct usb_ep *_ep)
1330{
1331 struct pxa_ep *ep;
1332 struct udc_usb_ep *udc_usb_ep;
1333 unsigned long flags;
1334
1335 if (!_ep)
1336 return;
1337 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1338 ep = udc_usb_ep->pxa_ep;
1339 if (!ep || is_ep0(ep))
1340 return;
1341
1342 spin_lock_irqsave(&ep->lock, flags);
1343
1344 if (unlikely(!list_empty(&ep->queue)))
1345 ep_dbg(ep, "called while queue list not empty\n");
1346 ep_dbg(ep, "called\n");
1347
1348 /* for OUT, just read and discard the FIFO contents. */
1349 if (!ep->dir_in) {
1350 while (!ep_is_empty(ep))
1351 udc_ep_readl(ep, UDCDR);
1352 } else {
1353 /* most IN status is the same, but ISO can't stall */
1354 udc_ep_writel(ep, UDCCSR,
1355 UDCCSR_PC | UDCCSR_FEF | UDCCSR_TRN
1356 | (EPXFERTYPE_is_ISO(ep) ? 0 : UDCCSR_SST));
1357 }
1358
1359 spin_unlock_irqrestore(&ep->lock, flags);
1360
1361 return;
1362}
1363
1364/**
1365 * pxa_ep_enable - Enables usb endpoint
1366 * @_ep: usb endpoint
1367 * @desc: usb endpoint descriptor
1368 *
1369 * Nothing much to do here, as ep configuration is done once and for all
1370 * before udc is enabled. After udc enable, no physical endpoint configuration
1371 * can be changed.
1372 * Function makes sanity checks and flushes the endpoint.
1373 */
1374static int pxa_ep_enable(struct usb_ep *_ep,
1375 const struct usb_endpoint_descriptor *desc)
1376{
1377 struct pxa_ep *ep;
1378 struct udc_usb_ep *udc_usb_ep;
1379 struct pxa_udc *udc;
1380
1381 if (!_ep || !desc)
1382 return -EINVAL;
1383
1384 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1385 if (udc_usb_ep->pxa_ep) {
1386 ep = udc_usb_ep->pxa_ep;
1387 ep_warn(ep, "usb_ep %s already enabled, doing nothing\n",
1388 _ep->name);
1389 } else {
1390 ep = find_pxa_ep(udc_usb_ep->dev, udc_usb_ep);
1391 }
1392
1393 if (!ep || is_ep0(ep)) {
1394 dev_err(udc_usb_ep->dev->dev,
1395 "unable to match pxa_ep for ep %s\n",
1396 _ep->name);
1397 return -EINVAL;
1398 }
1399
1400 if ((desc->bDescriptorType != USB_DT_ENDPOINT)
1401 || (ep->type != usb_endpoint_type(desc))) {
1402 ep_err(ep, "type mismatch\n");
1403 return -EINVAL;
1404 }
1405
1406 if (ep->fifo_size < le16_to_cpu(desc->wMaxPacketSize)) {
1407 ep_err(ep, "bad maxpacket\n");
1408 return -ERANGE;
1409 }
1410
1411 udc_usb_ep->pxa_ep = ep;
1412 udc = ep->dev;
1413
1414 if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) {
1415 ep_err(ep, "bogus device state\n");
1416 return -ESHUTDOWN;
1417 }
1418
1419 ep->enabled = 1;
1420
1421 /* flush fifo (mostly for OUT buffers) */
1422 pxa_ep_fifo_flush(_ep);
1423
1424 ep_dbg(ep, "enabled\n");
1425 return 0;
1426}
1427
1428/**
1429 * pxa_ep_disable - Disable usb endpoint
1430 * @_ep: usb endpoint
1431 *
1432 * Same as for pxa_ep_enable, no physical endpoint configuration can be
1433 * changed.
1434 * Function flushes the endpoint and related requests.
1435 */
1436static int pxa_ep_disable(struct usb_ep *_ep)
1437{
1438 struct pxa_ep *ep;
1439 struct udc_usb_ep *udc_usb_ep;
1440 unsigned long flags;
1441
1442 if (!_ep)
1443 return -EINVAL;
1444
1445 udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep);
1446 ep = udc_usb_ep->pxa_ep;
1447 if (!ep || is_ep0(ep) || !list_empty(&ep->queue))
1448 return -EINVAL;
1449
1450 spin_lock_irqsave(&ep->lock, flags);
1451 ep->enabled = 0;
1452 nuke(ep, -ESHUTDOWN);
1453 spin_unlock_irqrestore(&ep->lock, flags);
1454
1455 pxa_ep_fifo_flush(_ep);
1456 udc_usb_ep->pxa_ep = NULL;
1457
1458 ep_dbg(ep, "disabled\n");
1459 return 0;
1460}
1461
1462static struct usb_ep_ops pxa_ep_ops = {
1463 .enable = pxa_ep_enable,
1464 .disable = pxa_ep_disable,
1465
1466 .alloc_request = pxa_ep_alloc_request,
1467 .free_request = pxa_ep_free_request,
1468
1469 .queue = pxa_ep_queue,
1470 .dequeue = pxa_ep_dequeue,
1471
1472 .set_halt = pxa_ep_set_halt,
1473 .fifo_status = pxa_ep_fifo_status,
1474 .fifo_flush = pxa_ep_fifo_flush,
1475};
1476
1477
1478/**
1479 * pxa_udc_get_frame - Returns usb frame number
1480 * @_gadget: usb gadget
1481 */
1482static int pxa_udc_get_frame(struct usb_gadget *_gadget)
1483{
1484 struct pxa_udc *udc = to_gadget_udc(_gadget);
1485
1486 return (udc_readl(udc, UDCFNR) & 0x7ff);
1487}
1488
1489/**
1490 * pxa_udc_wakeup - Force udc device out of suspend
1491 * @_gadget: usb gadget
1492 *
1493 * Returns 0 if succesfull, error code otherwise
1494 */
1495static int pxa_udc_wakeup(struct usb_gadget *_gadget)
1496{
1497 struct pxa_udc *udc = to_gadget_udc(_gadget);
1498
1499 /* host may not have enabled remote wakeup */
1500 if ((udc_readl(udc, UDCCR) & UDCCR_DWRE) == 0)
1501 return -EHOSTUNREACH;
1502 udc_set_mask_UDCCR(udc, UDCCR_UDR);
1503 return 0;
1504}
1505
1506static const struct usb_gadget_ops pxa_udc_ops = {
1507 .get_frame = pxa_udc_get_frame,
1508 .wakeup = pxa_udc_wakeup,
1509 /* current versions must always be self-powered */
1510};
1511
1512/**
1513 * udc_disable - disable udc device controller
1514 * @udc: udc device
1515 *
1516 * Disables the udc device : disables clocks, udc interrupts, control endpoint
1517 * interrupts.
1518 */
1519static void udc_disable(struct pxa_udc *udc)
1520{
1521 udc_writel(udc, UDCICR0, 0);
1522 udc_writel(udc, UDCICR1, 0);
1523
1524 udc_clear_mask_UDCCR(udc, UDCCR_UDE);
1525 clk_disable(udc->clk);
1526
1527 ep0_idle(udc);
1528 udc->gadget.speed = USB_SPEED_UNKNOWN;
1529 udc->mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
1530}
1531
1532/**
1533 * udc_init_data - Initialize udc device data structures
1534 * @dev: udc device
1535 *
1536 * Initializes gadget endpoint list, endpoints locks. No action is taken
1537 * on the hardware.
1538 */
1539static __init void udc_init_data(struct pxa_udc *dev)
1540{
1541 int i;
1542 struct pxa_ep *ep;
1543
1544 /* device/ep0 records init */
1545 INIT_LIST_HEAD(&dev->gadget.ep_list);
1546 INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
1547 dev->udc_usb_ep[0].pxa_ep = &dev->pxa_ep[0];
1548 ep0_idle(dev);
1549 strcpy(dev->dev->bus_id, "");
1550
1551 /* PXA endpoints init */
1552 for (i = 0; i < NR_PXA_ENDPOINTS; i++) {
1553 ep = &dev->pxa_ep[i];
1554
1555 ep->enabled = is_ep0(ep);
1556 INIT_LIST_HEAD(&ep->queue);
1557 spin_lock_init(&ep->lock);
1558 }
1559
1560 /* USB endpoints init */
1561 for (i = 0; i < NR_USB_ENDPOINTS; i++)
1562 if (i != 0)
1563 list_add_tail(&dev->udc_usb_ep[i].usb_ep.ep_list,
1564 &dev->gadget.ep_list);
1565}
1566
1567/**
1568 * udc_enable - Enables the udc device
1569 * @dev: udc device
1570 *
1571 * Enables the udc device : enables clocks, udc interrupts, control endpoint
1572 * interrupts, sets usb as UDC client and setups endpoints.
1573 */
1574static void udc_enable(struct pxa_udc *udc)
1575{
1576 udc_writel(udc, UDCICR0, 0);
1577 udc_writel(udc, UDCICR1, 0);
1578 udc_writel(udc, UP2OCR, UP2OCR_HXOE);
1579 udc_clear_mask_UDCCR(udc, UDCCR_UDE);
1580
1581 clk_enable(udc->clk);
1582
1583 ep0_idle(udc);
1584 udc->gadget.speed = USB_SPEED_FULL;
1585 memset(&udc->stats, 0, sizeof(udc->stats));
1586
1587 udc_set_mask_UDCCR(udc, UDCCR_UDE);
1588 udelay(2);
1589 if (udc_readl(udc, UDCCR) & UDCCR_EMCE)
1590 dev_err(udc->dev, "Configuration errors, udc disabled\n");
1591
1592 /*
1593 * Caller must be able to sleep in order to cope with startup transients
1594 */
1595 msleep(100);
1596
1597 /* enable suspend/resume and reset irqs */
1598 udc_writel(udc, UDCICR1,
1599 UDCICR1_IECC | UDCICR1_IERU
1600 | UDCICR1_IESU | UDCICR1_IERS);
1601
1602 /* enable ep0 irqs */
1603 pio_irq_enable(&udc->pxa_ep[0]);
1604
1605 dev_info(udc->dev, "UDC connecting\n");
1606 if (udc->mach->udc_command)
1607 udc->mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
1608}
1609
1610/**
1611 * usb_gadget_register_driver - Register gadget driver
1612 * @driver: gadget driver
1613 *
1614 * When a driver is successfully registered, it will receive control requests
1615 * including set_configuration(), which enables non-control requests. Then
1616 * usb traffic follows until a disconnect is reported. Then a host may connect
1617 * again, or the driver might get unbound.
1618 *
1619 * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise
1620 */
1621int usb_gadget_register_driver(struct usb_gadget_driver *driver)
1622{
1623 struct pxa_udc *udc = the_controller;
1624 int retval;
1625
1626 if (!driver || driver->speed != USB_SPEED_FULL || !driver->bind
1627 || !driver->disconnect || !driver->setup)
1628 return -EINVAL;
1629 if (!udc)
1630 return -ENODEV;
1631 if (udc->driver)
1632 return -EBUSY;
1633
1634 /* first hook up the driver ... */
1635 udc->driver = driver;
1636 udc->gadget.dev.driver = &driver->driver;
1637
1638 retval = device_add(&udc->gadget.dev);
1639 if (retval) {
1640 dev_err(udc->dev, "device_add error %d\n", retval);
1641 goto add_fail;
1642 }
1643 retval = driver->bind(&udc->gadget);
1644 if (retval) {
1645 dev_err(udc->dev, "bind to driver %s --> error %d\n",
1646 driver->driver.name, retval);
1647 goto bind_fail;
1648 }
1649 dev_dbg(udc->dev, "registered gadget driver '%s'\n",
1650 driver->driver.name);
1651
1652 udc_enable(udc);
1653 return 0;
1654
1655bind_fail:
1656 device_del(&udc->gadget.dev);
1657add_fail:
1658 udc->driver = NULL;
1659 udc->gadget.dev.driver = NULL;
1660 return retval;
1661}
1662EXPORT_SYMBOL(usb_gadget_register_driver);
1663
1664
1665/**
1666 * stop_activity - Stops udc endpoints
1667 * @udc: udc device
1668 * @driver: gadget driver
1669 *
1670 * Disables all udc endpoints (even control endpoint), report disconnect to
1671 * the gadget user.
1672 */
1673static void stop_activity(struct pxa_udc *udc, struct usb_gadget_driver *driver)
1674{
1675 int i;
1676
1677 /* don't disconnect drivers more than once */
1678 if (udc->gadget.speed == USB_SPEED_UNKNOWN)
1679 driver = NULL;
1680 udc->gadget.speed = USB_SPEED_UNKNOWN;
1681
1682 for (i = 0; i < NR_USB_ENDPOINTS; i++)
1683 pxa_ep_disable(&udc->udc_usb_ep[i].usb_ep);
1684
1685 if (driver)
1686 driver->disconnect(&udc->gadget);
1687}
1688
1689/**
1690 * usb_gadget_unregister_driver - Unregister the gadget driver
1691 * @driver: gadget driver
1692 *
1693 * Returns 0 if no error, -ENODEV, -EINVAL otherwise
1694 */
1695int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
1696{
1697 struct pxa_udc *udc = the_controller;
1698
1699 if (!udc)
1700 return -ENODEV;
1701 if (!driver || driver != udc->driver || !driver->unbind)
1702 return -EINVAL;
1703
1704 stop_activity(udc, driver);
1705 udc_disable(udc);
1706
1707 driver->unbind(&udc->gadget);
1708 udc->driver = NULL;
1709
1710 device_del(&udc->gadget.dev);
1711
1712 dev_info(udc->dev, "unregistered gadget driver '%s'\n",
1713 driver->driver.name);
1714 return 0;
1715}
1716EXPORT_SYMBOL(usb_gadget_unregister_driver);
1717
1718/**
1719 * handle_ep0_ctrl_req - handle control endpoint control request
1720 * @udc: udc device
1721 * @req: control request
1722 */
1723static void handle_ep0_ctrl_req(struct pxa_udc *udc,
1724 struct pxa27x_request *req)
1725{
1726 struct pxa_ep *ep = &udc->pxa_ep[0];
1727 union {
1728 struct usb_ctrlrequest r;
1729 u32 word[2];
1730 } u;
1731 int i;
1732 int have_extrabytes = 0;
1733
1734 nuke(ep, -EPROTO);
1735
1736 /* read SETUP packet */
1737 for (i = 0; i < 2; i++) {
1738 if (unlikely(ep_is_empty(ep)))
1739 goto stall;
1740 u.word[i] = udc_ep_readl(ep, UDCDR);
1741 }
1742
1743 have_extrabytes = !ep_is_empty(ep);
1744 while (!ep_is_empty(ep)) {
1745 i = udc_ep_readl(ep, UDCDR);
1746 ep_err(ep, "wrong to have extra bytes for setup : 0x%08x\n", i);
1747 }
1748
1749 le16_to_cpus(&u.r.wValue);
1750 le16_to_cpus(&u.r.wIndex);
1751 le16_to_cpus(&u.r.wLength);
1752
1753 ep_dbg(ep, "SETUP %02x.%02x v%04x i%04x l%04x\n",
1754 u.r.bRequestType, u.r.bRequest,
1755 u.r.wValue, u.r.wIndex, u.r.wLength);
1756 if (unlikely(have_extrabytes))
1757 goto stall;
1758
1759 if (u.r.bRequestType & USB_DIR_IN)
1760 set_ep0state(udc, IN_DATA_STAGE);
1761 else
1762 set_ep0state(udc, OUT_DATA_STAGE);
1763
1764 /* Tell UDC to enter Data Stage */
1765 udc_ep_writel(ep, UDCCSR, UDCCSR0_SA | UDCCSR0_OPC);
1766
1767 i = udc->driver->setup(&udc->gadget, &u.r);
1768 if (i < 0)
1769 goto stall;
1770out:
1771 return;
1772stall:
1773 ep_dbg(ep, "protocol STALL, udccsr0=%03x err %d\n",
1774 udc_ep_readl(ep, UDCCSR), i);
1775 udc_ep_writel(ep, UDCCSR, UDCCSR0_FST | UDCCSR0_FTF);
1776 set_ep0state(udc, STALL);
1777 goto out;
1778}
1779
1780/**
1781 * handle_ep0 - Handle control endpoint data transfers
1782 * @udc: udc device
1783 * @fifo_irq: 1 if triggered by fifo service type irq
1784 * @opc_irq: 1 if triggered by output packet complete type irq
1785 *
1786 * Context : when in_interrupt() or with ep->lock held
1787 *
1788 * Tries to transfer all pending request data into the endpoint and/or
1789 * transfer all pending data in the endpoint into usb requests.
1790 * Handles states of ep0 automata.
1791 *
1792 * PXA27x hardware handles several standard usb control requests without
1793 * driver notification. The requests fully handled by hardware are :
1794 * SET_ADDRESS, SET_FEATURE, CLEAR_FEATURE, GET_CONFIGURATION, GET_INTERFACE,
1795 * GET_STATUS
1796 * The requests handled by hardware, but with irq notification are :
1797 * SYNCH_FRAME, SET_CONFIGURATION, SET_INTERFACE
1798 * The remaining standard requests really handled by handle_ep0 are :
1799 * GET_DESCRIPTOR, SET_DESCRIPTOR, specific requests.
1800 * Requests standardized outside of USB 2.0 chapter 9 are handled more
1801 * uniformly, by gadget drivers.
1802 *
1803 * The control endpoint state machine is _not_ USB spec compliant, it's even
1804 * hardly compliant with Intel PXA270 developers guide.
1805 * The key points which inferred this state machine are :
1806 * - on every setup token, bit UDCCSR0_SA is raised and held until cleared by
1807 * software.
1808 * - on every OUT packet received, UDCCSR0_OPC is raised and held until
1809 * cleared by software.
1810 * - clearing UDCCSR0_OPC always flushes ep0. If in setup stage, never do it
1811 * before reading ep0.
1812 * - irq can be called on a "packet complete" event (opc_irq=1), while
1813 * UDCCSR0_OPC is not yet raised (delta can be as big as 100ms
1814 * from experimentation).
1815 * - as UDCCSR0_SA can be activated while in irq handling, and clearing
1816 * UDCCSR0_OPC would flush the setup data, we almost never clear UDCCSR0_OPC
1817 * => we never actually read the "status stage" packet of an IN data stage
1818 * => this is not documented in Intel documentation
1819 * - hardware as no idea of STATUS STAGE, it only handle SETUP STAGE and DATA
1820 * STAGE. The driver add STATUS STAGE to send last zero length packet in
1821 * OUT_STATUS_STAGE.
1822 * - special attention was needed for IN_STATUS_STAGE. If a packet complete
1823 * event is detected, we terminate the status stage without ackowledging the
1824 * packet (not to risk to loose a potential SETUP packet)
1825 */
1826static void handle_ep0(struct pxa_udc *udc, int fifo_irq, int opc_irq)
1827{
1828 u32 udccsr0;
1829 struct pxa_ep *ep = &udc->pxa_ep[0];
1830 struct pxa27x_request *req = NULL;
1831 int completed = 0;
1832
1833 udccsr0 = udc_ep_readl(ep, UDCCSR);
1834 ep_dbg(ep, "state=%s, req=%p, udccsr0=0x%03x, udcbcr=%d, irq_msk=%x\n",
1835 EP0_STNAME(udc), req, udccsr0, udc_ep_readl(ep, UDCBCR),
1836 (fifo_irq << 1 | opc_irq));
1837
1838 if (!list_empty(&ep->queue))
1839 req = list_entry(ep->queue.next, struct pxa27x_request, queue);
1840
1841 if (udccsr0 & UDCCSR0_SST) {
1842 ep_dbg(ep, "clearing stall status\n");
1843 nuke(ep, -EPIPE);
1844 udc_ep_writel(ep, UDCCSR, UDCCSR0_SST);
1845 ep0_idle(udc);
1846 }
1847
1848 if (udccsr0 & UDCCSR0_SA) {
1849 nuke(ep, 0);
1850 set_ep0state(udc, SETUP_STAGE);
1851 }
1852
1853 switch (udc->ep0state) {
1854 case WAIT_FOR_SETUP:
1855 /*
1856 * Hardware bug : beware, we cannot clear OPC, since we would
1857 * miss a potential OPC irq for a setup packet.
1858 * So, we only do ... nothing, and hope for a next irq with
1859 * UDCCSR0_SA set.
1860 */
1861 break;
1862 case SETUP_STAGE:
1863 udccsr0 &= UDCCSR0_CTRL_REQ_MASK;
1864 if (likely(udccsr0 == UDCCSR0_CTRL_REQ_MASK))
1865 handle_ep0_ctrl_req(udc, req);
1866 break;
1867 case IN_DATA_STAGE: /* GET_DESCRIPTOR */
1868 if (epout_has_pkt(ep))
1869 udc_ep_writel(ep, UDCCSR, UDCCSR0_OPC);
1870 if (req && !ep_is_full(ep))
1871 completed = write_ep0_fifo(ep, req);
1872 if (completed)
1873 ep0_end_in_req(ep, req);
1874 break;
1875 case OUT_DATA_STAGE: /* SET_DESCRIPTOR */
1876 if (epout_has_pkt(ep) && req)
1877 completed = read_ep0_fifo(ep, req);
1878 if (completed)
1879 ep0_end_out_req(ep, req);
1880 break;
1881 case STALL:
1882 udc_ep_writel(ep, UDCCSR, UDCCSR0_FST);
1883 break;
1884 case IN_STATUS_STAGE:
1885 /*
1886 * Hardware bug : beware, we cannot clear OPC, since we would
1887 * miss a potential PC irq for a setup packet.
1888 * So, we only put the ep0 into WAIT_FOR_SETUP state.
1889 */
1890 if (opc_irq)
1891 ep0_idle(udc);
1892 break;
1893 case OUT_STATUS_STAGE:
1894 case WAIT_ACK_SET_CONF_INTERF:
1895 ep_warn(ep, "should never get in %s state here!!!\n",
1896 EP0_STNAME(ep->dev));
1897 ep0_idle(udc);
1898 break;
1899 }
1900}
1901
1902/**
1903 * handle_ep - Handle endpoint data tranfers
1904 * @ep: pxa physical endpoint
1905 *
1906 * Tries to transfer all pending request data into the endpoint and/or
1907 * transfer all pending data in the endpoint into usb requests.
1908 *
1909 * Is always called when in_interrupt() or with ep->lock held.
1910 */
1911static void handle_ep(struct pxa_ep *ep)
1912{
1913 struct pxa27x_request *req;
1914 int completed;
1915 u32 udccsr;
1916 int is_in = ep->dir_in;
1917 int loop = 0;
1918
1919 do {
1920 completed = 0;
1921 udccsr = udc_ep_readl(ep, UDCCSR);
1922 if (likely(!list_empty(&ep->queue)))
1923 req = list_entry(ep->queue.next,
1924 struct pxa27x_request, queue);
1925 else
1926 req = NULL;
1927
1928 ep_dbg(ep, "req:%p, udccsr 0x%03x loop=%d\n",
1929 req, udccsr, loop++);
1930
1931 if (unlikely(udccsr & (UDCCSR_SST | UDCCSR_TRN)))
1932 udc_ep_writel(ep, UDCCSR,
1933 udccsr & (UDCCSR_SST | UDCCSR_TRN));
1934 if (!req)
1935 break;
1936
1937 if (unlikely(is_in)) {
1938 if (likely(!ep_is_full(ep)))
1939 completed = write_fifo(ep, req);
1940 if (completed)
1941 ep_end_in_req(ep, req);
1942 } else {
1943 if (likely(epout_has_pkt(ep)))
1944 completed = read_fifo(ep, req);
1945 if (completed)
1946 ep_end_out_req(ep, req);
1947 }
1948 } while (completed);
1949}
1950
1951/**
1952 * pxa27x_change_configuration - Handle SET_CONF usb request notification
1953 * @udc: udc device
1954 * @config: usb configuration
1955 *
1956 * Post the request to upper level.
1957 * Don't use any pxa specific harware configuration capabilities
1958 */
1959static void pxa27x_change_configuration(struct pxa_udc *udc, int config)
1960{
1961 struct usb_ctrlrequest req ;
1962
1963 dev_dbg(udc->dev, "config=%d\n", config);
1964
1965 udc->config = config;
1966 udc->last_interface = 0;
1967 udc->last_alternate = 0;
1968
1969 req.bRequestType = 0;
1970 req.bRequest = USB_REQ_SET_CONFIGURATION;
1971 req.wValue = config;
1972 req.wIndex = 0;
1973 req.wLength = 0;
1974
1975 set_ep0state(udc, WAIT_ACK_SET_CONF_INTERF);
1976 udc->driver->setup(&udc->gadget, &req);
1977}
1978
1979/**
1980 * pxa27x_change_interface - Handle SET_INTERF usb request notification
1981 * @udc: udc device
1982 * @iface: interface number
1983 * @alt: alternate setting number
1984 *
1985 * Post the request to upper level.
1986 * Don't use any pxa specific harware configuration capabilities
1987 */
1988static void pxa27x_change_interface(struct pxa_udc *udc, int iface, int alt)
1989{
1990 struct usb_ctrlrequest req;
1991
1992 dev_dbg(udc->dev, "interface=%d, alternate setting=%d\n", iface, alt);
1993
1994 udc->last_interface = iface;
1995 udc->last_alternate = alt;
1996
1997 req.bRequestType = USB_RECIP_INTERFACE;
1998 req.bRequest = USB_REQ_SET_INTERFACE;
1999 req.wValue = alt;
2000 req.wIndex = iface;
2001 req.wLength = 0;
2002
2003 set_ep0state(udc, WAIT_ACK_SET_CONF_INTERF);
2004 udc->driver->setup(&udc->gadget, &req);
2005}
2006
2007/*
2008 * irq_handle_data - Handle data transfer
2009 * @irq: irq IRQ number
2010 * @udc: dev pxa_udc device structure
2011 *
2012 * Called from irq handler, transferts data to or from endpoint to queue
2013 */
2014static void irq_handle_data(int irq, struct pxa_udc *udc)
2015{
2016 int i;
2017 struct pxa_ep *ep;
2018 u32 udcisr0 = udc_readl(udc, UDCISR0) & UDCCISR0_EP_MASK;
2019 u32 udcisr1 = udc_readl(udc, UDCISR1) & UDCCISR1_EP_MASK;
2020
2021 if (udcisr0 & UDCISR_INT_MASK) {
2022 udc->pxa_ep[0].stats.irqs++;
2023 udc_writel(udc, UDCISR0, UDCISR_INT(0, UDCISR_INT_MASK));
2024 handle_ep0(udc, !!(udcisr0 & UDCICR_FIFOERR),
2025 !!(udcisr0 & UDCICR_PKTCOMPL));
2026 }
2027
2028 udcisr0 >>= 2;
2029 for (i = 1; udcisr0 != 0 && i < 16; udcisr0 >>= 2, i++) {
2030 if (!(udcisr0 & UDCISR_INT_MASK))
2031 continue;
2032
2033 udc_writel(udc, UDCISR0, UDCISR_INT(i, UDCISR_INT_MASK));
2034 ep = &udc->pxa_ep[i];
2035 ep->stats.irqs++;
2036 handle_ep(ep);
2037 }
2038
2039 for (i = 16; udcisr1 != 0 && i < 24; udcisr1 >>= 2, i++) {
2040 udc_writel(udc, UDCISR1, UDCISR_INT(i - 16, UDCISR_INT_MASK));
2041 if (!(udcisr1 & UDCISR_INT_MASK))
2042 continue;
2043
2044 ep = &udc->pxa_ep[i];
2045 ep->stats.irqs++;
2046 handle_ep(ep);
2047 }
2048
2049}
2050
2051/**
2052 * irq_udc_suspend - Handle IRQ "UDC Suspend"
2053 * @udc: udc device
2054 */
2055static void irq_udc_suspend(struct pxa_udc *udc)
2056{
2057 udc_writel(udc, UDCISR1, UDCISR1_IRSU);
2058 udc->stats.irqs_suspend++;
2059
2060 if (udc->gadget.speed != USB_SPEED_UNKNOWN
2061 && udc->driver && udc->driver->suspend)
2062 udc->driver->suspend(&udc->gadget);
2063 ep0_idle(udc);
2064}
2065
2066/**
2067 * irq_udc_resume - Handle IRQ "UDC Resume"
2068 * @udc: udc device
2069 */
2070static void irq_udc_resume(struct pxa_udc *udc)
2071{
2072 udc_writel(udc, UDCISR1, UDCISR1_IRRU);
2073 udc->stats.irqs_resume++;
2074
2075 if (udc->gadget.speed != USB_SPEED_UNKNOWN
2076 && udc->driver && udc->driver->resume)
2077 udc->driver->resume(&udc->gadget);
2078}
2079
2080/**
2081 * irq_udc_reconfig - Handle IRQ "UDC Change Configuration"
2082 * @udc: udc device
2083 */
2084static void irq_udc_reconfig(struct pxa_udc *udc)
2085{
2086 unsigned config, interface, alternate, config_change;
2087 u32 udccr = udc_readl(udc, UDCCR);
2088
2089 udc_writel(udc, UDCISR1, UDCISR1_IRCC);
2090 udc->stats.irqs_reconfig++;
2091
2092 config = (udccr & UDCCR_ACN) >> UDCCR_ACN_S;
2093 config_change = (config != udc->config);
2094 pxa27x_change_configuration(udc, config);
2095
2096 interface = (udccr & UDCCR_AIN) >> UDCCR_AIN_S;
2097 alternate = (udccr & UDCCR_AAISN) >> UDCCR_AAISN_S;
2098 pxa27x_change_interface(udc, interface, alternate);
2099
2100 if (config_change)
2101 update_pxa_ep_matches(udc);
2102 udc_set_mask_UDCCR(udc, UDCCR_SMAC);
2103}
2104
2105/**
2106 * irq_udc_reset - Handle IRQ "UDC Reset"
2107 * @udc: udc device
2108 */
2109static void irq_udc_reset(struct pxa_udc *udc)
2110{
2111 u32 udccr = udc_readl(udc, UDCCR);
2112 struct pxa_ep *ep = &udc->pxa_ep[0];
2113
2114 dev_info(udc->dev, "USB reset\n");
2115 udc_writel(udc, UDCISR1, UDCISR1_IRRS);
2116 udc->stats.irqs_reset++;
2117
2118 if ((udccr & UDCCR_UDA) == 0) {
2119 dev_dbg(udc->dev, "USB reset start\n");
2120 stop_activity(udc, udc->driver);
2121 }
2122 udc->gadget.speed = USB_SPEED_FULL;
2123 memset(&udc->stats, 0, sizeof udc->stats);
2124
2125 nuke(ep, -EPROTO);
2126 udc_ep_writel(ep, UDCCSR, UDCCSR0_FTF | UDCCSR0_OPC);
2127 ep0_idle(udc);
2128}
2129
2130/**
2131 * pxa_udc_irq - Main irq handler
2132 * @irq: irq number
2133 * @_dev: udc device
2134 *
2135 * Handles all udc interrupts
2136 */
2137static irqreturn_t pxa_udc_irq(int irq, void *_dev)
2138{
2139 struct pxa_udc *udc = _dev;
2140 u32 udcisr0 = udc_readl(udc, UDCISR0);
2141 u32 udcisr1 = udc_readl(udc, UDCISR1);
2142 u32 udccr = udc_readl(udc, UDCCR);
2143 u32 udcisr1_spec;
2144
2145 dev_vdbg(udc->dev, "Interrupt, UDCISR0:0x%08x, UDCISR1:0x%08x, "
2146 "UDCCR:0x%08x\n", udcisr0, udcisr1, udccr);
2147
2148 udcisr1_spec = udcisr1 & 0xf8000000;
2149 if (unlikely(udcisr1_spec & UDCISR1_IRSU))
2150 irq_udc_suspend(udc);
2151 if (unlikely(udcisr1_spec & UDCISR1_IRRU))
2152 irq_udc_resume(udc);
2153 if (unlikely(udcisr1_spec & UDCISR1_IRCC))
2154 irq_udc_reconfig(udc);
2155 if (unlikely(udcisr1_spec & UDCISR1_IRRS))
2156 irq_udc_reset(udc);
2157
2158 if ((udcisr0 & UDCCISR0_EP_MASK) | (udcisr1 & UDCCISR1_EP_MASK))
2159 irq_handle_data(irq, udc);
2160
2161 return IRQ_HANDLED;
2162}
2163
2164static struct pxa_udc memory = {
2165 .gadget = {
2166 .ops = &pxa_udc_ops,
2167 .ep0 = &memory.udc_usb_ep[0].usb_ep,
2168 .name = driver_name,
2169 .dev = {
2170 .bus_id = "gadget",
2171 },
2172 },
2173
2174 .udc_usb_ep = {
2175 USB_EP_CTRL,
2176 USB_EP_OUT_BULK(1),
2177 USB_EP_IN_BULK(2),
2178 USB_EP_IN_ISO(3),
2179 USB_EP_OUT_ISO(4),
2180 USB_EP_IN_INT(5),
2181 },
2182
2183 .pxa_ep = {
2184 PXA_EP_CTRL,
2185 /* Endpoints for gadget zero */
2186 PXA_EP_OUT_BULK(1, 1, 3, 0, 0),
2187 PXA_EP_IN_BULK(2, 2, 3, 0, 0),
2188 /* Endpoints for ether gadget, file storage gadget */
2189 PXA_EP_OUT_BULK(3, 1, 1, 0, 0),
2190 PXA_EP_IN_BULK(4, 2, 1, 0, 0),
2191 PXA_EP_IN_ISO(5, 3, 1, 0, 0),
2192 PXA_EP_OUT_ISO(6, 4, 1, 0, 0),
2193 PXA_EP_IN_INT(7, 5, 1, 0, 0),
2194 /* Endpoints for RNDIS, serial */
2195 PXA_EP_OUT_BULK(8, 1, 2, 0, 0),
2196 PXA_EP_IN_BULK(9, 2, 2, 0, 0),
2197 PXA_EP_IN_INT(10, 5, 2, 0, 0),
2198 /*
2199 * All the following endpoints are only for completion. They
2200 * won't never work, as multiple interfaces are really broken on
2201 * the pxa.
2202 */
2203 PXA_EP_OUT_BULK(11, 1, 2, 1, 0),
2204 PXA_EP_IN_BULK(12, 2, 2, 1, 0),
2205 /* Endpoint for CDC Ether */
2206 PXA_EP_OUT_BULK(13, 1, 1, 1, 1),
2207 PXA_EP_IN_BULK(14, 2, 1, 1, 1),
2208 }
2209};
2210
2211/**
2212 * pxa_udc_probe - probes the udc device
2213 * @_dev: platform device
2214 *
2215 * Perform basic init : allocates udc clock, creates sysfs files, requests
2216 * irq.
2217 */
2218static int __init pxa_udc_probe(struct platform_device *pdev)
2219{
2220 struct resource *regs;
2221 struct pxa_udc *udc = &memory;
2222 int retval;
2223
2224 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2225 if (!regs)
2226 return -ENXIO;
2227 udc->irq = platform_get_irq(pdev, 0);
2228 if (udc->irq < 0)
2229 return udc->irq;
2230
2231 udc->dev = &pdev->dev;
2232 udc->mach = pdev->dev.platform_data;
2233
2234 udc->clk = clk_get(&pdev->dev, "UDCCLK");
2235 if (IS_ERR(udc->clk)) {
2236 retval = PTR_ERR(udc->clk);
2237 goto err_clk;
2238 }
2239
2240 retval = -ENOMEM;
2241 udc->regs = ioremap(regs->start, regs->end - regs->start + 1);
2242 if (!udc->regs) {
2243 dev_err(&pdev->dev, "Unable to map UDC I/O memory\n");
2244 goto err_map;
2245 }
2246
2247 device_initialize(&udc->gadget.dev);
2248 udc->gadget.dev.parent = &pdev->dev;
2249 udc->gadget.dev.dma_mask = NULL;
2250
2251 the_controller = udc;
2252 platform_set_drvdata(pdev, udc);
2253 udc_init_data(udc);
2254 pxa_eps_setup(udc);
2255
2256 /* irq setup after old hardware state is cleaned up */
2257 retval = request_irq(udc->irq, pxa_udc_irq,
2258 IRQF_SHARED, driver_name, udc);
2259 if (retval != 0) {
2260 dev_err(udc->dev, "%s: can't get irq %i, err %d\n",
2261 driver_name, IRQ_USB, retval);
2262 goto err_irq;
2263 }
2264
2265 pxa_init_debugfs(udc);
2266 return 0;
2267err_irq:
2268 iounmap(udc->regs);
2269err_map:
2270 clk_put(udc->clk);
2271 udc->clk = NULL;
2272err_clk:
2273 return retval;
2274}
2275
2276/**
2277 * pxa_udc_remove - removes the udc device driver
2278 * @_dev: platform device
2279 */
2280static int __exit pxa_udc_remove(struct platform_device *_dev)
2281{
2282 struct pxa_udc *udc = platform_get_drvdata(_dev);
2283
2284 usb_gadget_unregister_driver(udc->driver);
2285 free_irq(udc->irq, udc);
2286 pxa_cleanup_debugfs(udc);
2287
2288 platform_set_drvdata(_dev, NULL);
2289 the_controller = NULL;
2290 clk_put(udc->clk);
2291
2292 return 0;
2293}
2294
2295static void pxa_udc_shutdown(struct platform_device *_dev)
2296{
2297 struct pxa_udc *udc = platform_get_drvdata(_dev);
2298
2299 udc_disable(udc);
2300}
2301
2302#ifdef CONFIG_PM
2303/**
2304 * pxa_udc_suspend - Suspend udc device
2305 * @_dev: platform device
2306 * @state: suspend state
2307 *
2308 * Suspends udc : saves configuration registers (UDCCR*), then disables the udc
2309 * device.
2310 */
2311static int pxa_udc_suspend(struct platform_device *_dev, pm_message_t state)
2312{
2313 int i;
2314 struct pxa_udc *udc = platform_get_drvdata(_dev);
2315 struct pxa_ep *ep;
2316
2317 ep = &udc->pxa_ep[0];
2318 udc->udccsr0 = udc_ep_readl(ep, UDCCSR);
2319 for (i = 1; i < NR_PXA_ENDPOINTS; i++) {
2320 ep = &udc->pxa_ep[i];
2321 ep->udccsr_value = udc_ep_readl(ep, UDCCSR);
2322 ep->udccr_value = udc_ep_readl(ep, UDCCR);
2323 ep_dbg(ep, "udccsr:0x%03x, udccr:0x%x\n",
2324 ep->udccsr_value, ep->udccr_value);
2325 }
2326
2327 udc_disable(udc);
2328
2329 return 0;
2330}
2331
2332/**
2333 * pxa_udc_resume - Resume udc device
2334 * @_dev: platform device
2335 *
2336 * Resumes udc : restores configuration registers (UDCCR*), then enables the udc
2337 * device.
2338 */
2339static int pxa_udc_resume(struct platform_device *_dev)
2340{
2341 int i;
2342 struct pxa_udc *udc = platform_get_drvdata(_dev);
2343 struct pxa_ep *ep;
2344
2345 ep = &udc->pxa_ep[0];
2346 udc_ep_writel(ep, UDCCSR, udc->udccsr0 & (UDCCSR0_FST | UDCCSR0_DME));
2347 for (i = 1; i < NR_PXA_ENDPOINTS; i++) {
2348 ep = &udc->pxa_ep[i];
2349 udc_ep_writel(ep, UDCCSR, ep->udccsr_value);
2350 udc_ep_writel(ep, UDCCR, ep->udccr_value);
2351 ep_dbg(ep, "udccsr:0x%03x, udccr:0x%x\n",
2352 ep->udccsr_value, ep->udccr_value);
2353 }
2354
2355 udc_enable(udc);
2356 /*
2357 * We do not handle OTG yet.
2358 *
2359 * OTGPH bit is set when sleep mode is entered.
2360 * it indicates that OTG pad is retaining its state.
2361 * Upon exit from sleep mode and before clearing OTGPH,
2362 * Software must configure the USB OTG pad, UDC, and UHC
2363 * to the state they were in before entering sleep mode.
2364 *
2365 * Should be : PSSR |= PSSR_OTGPH;
2366 */
2367
2368 return 0;
2369}
2370#endif
2371
2372/* work with hotplug and coldplug */
2373MODULE_ALIAS("platform:pxa2xx-udc");
2374
2375static struct platform_driver udc_driver = {
2376 .driver = {
2377 .name = "pxa2xx-udc",
2378 .owner = THIS_MODULE,
2379 },
2380 .remove = __exit_p(pxa_udc_remove),
2381 .shutdown = pxa_udc_shutdown,
2382#ifdef CONFIG_PM
2383 .suspend = pxa_udc_suspend,
2384 .resume = pxa_udc_resume
2385#endif
2386};
2387
2388static int __init udc_init(void)
2389{
2390 printk(KERN_INFO "%s: version %s\n", driver_name, DRIVER_VERSION);
2391 return platform_driver_probe(&udc_driver, pxa_udc_probe);
2392}
2393module_init(udc_init);
2394
2395
2396static void __exit udc_exit(void)
2397{
2398 platform_driver_unregister(&udc_driver);
2399}
2400module_exit(udc_exit);
2401
2402MODULE_DESCRIPTION(DRIVER_DESC);
2403MODULE_AUTHOR("Robert Jarzmik");
2404MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/pxa27x_udc.h b/drivers/usb/gadget/pxa27x_udc.h
new file mode 100644
index 000000000000..1d1b7936ee11
--- /dev/null
+++ b/drivers/usb/gadget/pxa27x_udc.h
@@ -0,0 +1,487 @@
1/*
2 * linux/drivers/usb/gadget/pxa27x_udc.h
3 * Intel PXA27x on-chip full speed USB device controller
4 *
5 * Inspired by original driver by Frank Becker, David Brownell, and others.
6 * Copyright (C) 2008 Robert Jarzmik
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23#ifndef __LINUX_USB_GADGET_PXA27X_H
24#define __LINUX_USB_GADGET_PXA27X_H
25
26#include <linux/types.h>
27#include <linux/spinlock.h>
28#include <linux/io.h>
29
30/*
31 * Register definitions
32 */
33/* Offsets */
34#define UDCCR 0x0000 /* UDC Control Register */
35#define UDCICR0 0x0004 /* UDC Interrupt Control Register0 */
36#define UDCICR1 0x0008 /* UDC Interrupt Control Register1 */
37#define UDCISR0 0x000C /* UDC Interrupt Status Register 0 */
38#define UDCISR1 0x0010 /* UDC Interrupt Status Register 1 */
39#define UDCFNR 0x0014 /* UDC Frame Number Register */
40#define UDCOTGICR 0x0018 /* UDC On-The-Go interrupt control */
41#define UP2OCR 0x0020 /* USB Port 2 Output Control register */
42#define UP3OCR 0x0024 /* USB Port 3 Output Control register */
43#define UDCCSRn(x) (0x0100 + ((x)<<2)) /* UDC Control/Status register */
44#define UDCBCRn(x) (0x0200 + ((x)<<2)) /* UDC Byte Count Register */
45#define UDCDRn(x) (0x0300 + ((x)<<2)) /* UDC Data Register */
46#define UDCCRn(x) (0x0400 + ((x)<<2)) /* UDC Control Register */
47
48#define UDCCR_OEN (1 << 31) /* On-the-Go Enable */
49#define UDCCR_AALTHNP (1 << 30) /* A-device Alternate Host Negotiation
50 Protocol Port Support */
51#define UDCCR_AHNP (1 << 29) /* A-device Host Negotiation Protocol
52 Support */
53#define UDCCR_BHNP (1 << 28) /* B-device Host Negotiation Protocol
54 Enable */
55#define UDCCR_DWRE (1 << 16) /* Device Remote Wake-up Enable */
56#define UDCCR_ACN (0x03 << 11) /* Active UDC configuration Number */
57#define UDCCR_ACN_S 11
58#define UDCCR_AIN (0x07 << 8) /* Active UDC interface Number */
59#define UDCCR_AIN_S 8
60#define UDCCR_AAISN (0x07 << 5) /* Active UDC Alternate Interface
61 Setting Number */
62#define UDCCR_AAISN_S 5
63#define UDCCR_SMAC (1 << 4) /* Switch Endpoint Memory to Active
64 Configuration */
65#define UDCCR_EMCE (1 << 3) /* Endpoint Memory Configuration
66 Error */
67#define UDCCR_UDR (1 << 2) /* UDC Resume */
68#define UDCCR_UDA (1 << 1) /* UDC Active */
69#define UDCCR_UDE (1 << 0) /* UDC Enable */
70
71#define UDCICR_INT(n, intr) (((intr) & 0x03) << (((n) & 0x0F) * 2))
72#define UDCICR1_IECC (1 << 31) /* IntEn - Configuration Change */
73#define UDCICR1_IESOF (1 << 30) /* IntEn - Start of Frame */
74#define UDCICR1_IERU (1 << 29) /* IntEn - Resume */
75#define UDCICR1_IESU (1 << 28) /* IntEn - Suspend */
76#define UDCICR1_IERS (1 << 27) /* IntEn - Reset */
77#define UDCICR_FIFOERR (1 << 1) /* FIFO Error interrupt for EP */
78#define UDCICR_PKTCOMPL (1 << 0) /* Packet Complete interrupt for EP */
79#define UDCICR_INT_MASK (UDCICR_FIFOERR | UDCICR_PKTCOMPL)
80
81#define UDCISR_INT(n, intr) (((intr) & 0x03) << (((n) & 0x0F) * 2))
82#define UDCISR1_IRCC (1 << 31) /* IntReq - Configuration Change */
83#define UDCISR1_IRSOF (1 << 30) /* IntReq - Start of Frame */
84#define UDCISR1_IRRU (1 << 29) /* IntReq - Resume */
85#define UDCISR1_IRSU (1 << 28) /* IntReq - Suspend */
86#define UDCISR1_IRRS (1 << 27) /* IntReq - Reset */
87#define UDCISR_INT_MASK (UDCICR_FIFOERR | UDCICR_PKTCOMPL)
88
89#define UDCOTGICR_IESF (1 << 24) /* OTG SET_FEATURE command recvd */
90#define UDCOTGICR_IEXR (1 << 17) /* Extra Transciever Interrupt
91 Rising Edge Interrupt Enable */
92#define UDCOTGICR_IEXF (1 << 16) /* Extra Transciever Interrupt
93 Falling Edge Interrupt Enable */
94#define UDCOTGICR_IEVV40R (1 << 9) /* OTG Vbus Valid 4.0V Rising Edge
95 Interrupt Enable */
96#define UDCOTGICR_IEVV40F (1 << 8) /* OTG Vbus Valid 4.0V Falling Edge
97 Interrupt Enable */
98#define UDCOTGICR_IEVV44R (1 << 7) /* OTG Vbus Valid 4.4V Rising Edge
99 Interrupt Enable */
100#define UDCOTGICR_IEVV44F (1 << 6) /* OTG Vbus Valid 4.4V Falling Edge
101 Interrupt Enable */
102#define UDCOTGICR_IESVR (1 << 5) /* OTG Session Valid Rising Edge
103 Interrupt Enable */
104#define UDCOTGICR_IESVF (1 << 4) /* OTG Session Valid Falling Edge
105 Interrupt Enable */
106#define UDCOTGICR_IESDR (1 << 3) /* OTG A-Device SRP Detect Rising
107 Edge Interrupt Enable */
108#define UDCOTGICR_IESDF (1 << 2) /* OTG A-Device SRP Detect Falling
109 Edge Interrupt Enable */
110#define UDCOTGICR_IEIDR (1 << 1) /* OTG ID Change Rising Edge
111 Interrupt Enable */
112#define UDCOTGICR_IEIDF (1 << 0) /* OTG ID Change Falling Edge
113 Interrupt Enable */
114
115/* Host Port 2 field bits */
116#define UP2OCR_CPVEN (1 << 0) /* Charge Pump Vbus Enable */
117#define UP2OCR_CPVPE (1 << 1) /* Charge Pump Vbus Pulse Enable */
118 /* Transceiver enablers */
119#define UP2OCR_DPPDE (1 << 2) /* D+ Pull Down Enable */
120#define UP2OCR_DMPDE (1 << 3) /* D- Pull Down Enable */
121#define UP2OCR_DPPUE (1 << 4) /* D+ Pull Up Enable */
122#define UP2OCR_DMPUE (1 << 5) /* D- Pull Up Enable */
123#define UP2OCR_DPPUBE (1 << 6) /* D+ Pull Up Bypass Enable */
124#define UP2OCR_DMPUBE (1 << 7) /* D- Pull Up Bypass Enable */
125#define UP2OCR_EXSP (1 << 8) /* External Transceiver Speed Control */
126#define UP2OCR_EXSUS (1 << 9) /* External Transceiver Speed Enable */
127#define UP2OCR_IDON (1 << 10) /* OTG ID Read Enable */
128#define UP2OCR_HXS (1 << 16) /* Transceiver Output Select */
129#define UP2OCR_HXOE (1 << 17) /* Transceiver Output Enable */
130#define UP2OCR_SEOS (1 << 24) /* Single-Ended Output Select */
131
132#define UDCCSR0_SA (1 << 7) /* Setup Active */
133#define UDCCSR0_RNE (1 << 6) /* Receive FIFO Not Empty */
134#define UDCCSR0_FST (1 << 5) /* Force Stall */
135#define UDCCSR0_SST (1 << 4) /* Sent Stall */
136#define UDCCSR0_DME (1 << 3) /* DMA Enable */
137#define UDCCSR0_FTF (1 << 2) /* Flush Transmit FIFO */
138#define UDCCSR0_IPR (1 << 1) /* IN Packet Ready */
139#define UDCCSR0_OPC (1 << 0) /* OUT Packet Complete */
140
141#define UDCCSR_DPE (1 << 9) /* Data Packet Error */
142#define UDCCSR_FEF (1 << 8) /* Flush Endpoint FIFO */
143#define UDCCSR_SP (1 << 7) /* Short Packet Control/Status */
144#define UDCCSR_BNE (1 << 6) /* Buffer Not Empty (IN endpoints) */
145#define UDCCSR_BNF (1 << 6) /* Buffer Not Full (OUT endpoints) */
146#define UDCCSR_FST (1 << 5) /* Force STALL */
147#define UDCCSR_SST (1 << 4) /* Sent STALL */
148#define UDCCSR_DME (1 << 3) /* DMA Enable */
149#define UDCCSR_TRN (1 << 2) /* Tx/Rx NAK */
150#define UDCCSR_PC (1 << 1) /* Packet Complete */
151#define UDCCSR_FS (1 << 0) /* FIFO needs service */
152
153#define UDCCONR_CN (0x03 << 25) /* Configuration Number */
154#define UDCCONR_CN_S 25
155#define UDCCONR_IN (0x07 << 22) /* Interface Number */
156#define UDCCONR_IN_S 22
157#define UDCCONR_AISN (0x07 << 19) /* Alternate Interface Number */
158#define UDCCONR_AISN_S 19
159#define UDCCONR_EN (0x0f << 15) /* Endpoint Number */
160#define UDCCONR_EN_S 15
161#define UDCCONR_ET (0x03 << 13) /* Endpoint Type: */
162#define UDCCONR_ET_S 13
163#define UDCCONR_ET_INT (0x03 << 13) /* Interrupt */
164#define UDCCONR_ET_BULK (0x02 << 13) /* Bulk */
165#define UDCCONR_ET_ISO (0x01 << 13) /* Isochronous */
166#define UDCCONR_ET_NU (0x00 << 13) /* Not used */
167#define UDCCONR_ED (1 << 12) /* Endpoint Direction */
168#define UDCCONR_MPS (0x3ff << 2) /* Maximum Packet Size */
169#define UDCCONR_MPS_S 2
170#define UDCCONR_DE (1 << 1) /* Double Buffering Enable */
171#define UDCCONR_EE (1 << 0) /* Endpoint Enable */
172
173#define UDCCR_MASK_BITS (UDCCR_OEN | UDCCR_SMAC | UDCCR_UDR | UDCCR_UDE)
174#define UDCCSR_WR_MASK (UDCCSR_DME | UDCCSR_FST)
175#define UDC_FNR_MASK (0x7ff)
176#define UDC_BCR_MASK (0x3ff)
177
178/*
179 * UDCCR = UDC Endpoint Configuration Registers
180 * UDCCSR = UDC Control/Status Register for this EP
181 * UDCBCR = UDC Byte Count Remaining (contents of OUT fifo)
182 * UDCDR = UDC Endpoint Data Register (the fifo)
183 */
184#define ofs_UDCCR(ep) (UDCCRn(ep->idx))
185#define ofs_UDCCSR(ep) (UDCCSRn(ep->idx))
186#define ofs_UDCBCR(ep) (UDCBCRn(ep->idx))
187#define ofs_UDCDR(ep) (UDCDRn(ep->idx))
188
189/* Register access macros */
190#define udc_ep_readl(ep, reg) \
191 __raw_readl((ep)->dev->regs + ofs_##reg(ep))
192#define udc_ep_writel(ep, reg, value) \
193 __raw_writel((value), ep->dev->regs + ofs_##reg(ep))
194#define udc_ep_readb(ep, reg) \
195 __raw_readb((ep)->dev->regs + ofs_##reg(ep))
196#define udc_ep_writeb(ep, reg, value) \
197 __raw_writeb((value), ep->dev->regs + ofs_##reg(ep))
198#define udc_readl(dev, reg) \
199 __raw_readl((dev)->regs + (reg))
200#define udc_writel(udc, reg, value) \
201 __raw_writel((value), (udc)->regs + (reg))
202
203#define UDCCSR_MASK (UDCCSR_FST | UDCCSR_DME)
204#define UDCCISR0_EP_MASK ~0
205#define UDCCISR1_EP_MASK 0xffff
206#define UDCCSR0_CTRL_REQ_MASK (UDCCSR0_OPC | UDCCSR0_SA | UDCCSR0_RNE)
207
208#define EPIDX(ep) (ep->idx)
209#define EPADDR(ep) (ep->addr)
210#define EPXFERTYPE(ep) (ep->type)
211#define EPNAME(ep) (ep->name)
212#define is_ep0(ep) (!ep->idx)
213#define EPXFERTYPE_is_ISO(ep) (EPXFERTYPE(ep) == USB_ENDPOINT_XFER_ISOC)
214
215/*
216 * Endpoint definitions
217 *
218 * Once enabled, pxa endpoint configuration is freezed, and cannot change
219 * unless a reset happens or the udc is disabled.
220 * Therefore, we must define all pxa potential endpoint definitions needed for
221 * all gadget and set them up before the udc is enabled.
222 *
223 * As the architecture chosen is fully static, meaning the pxa endpoint
224 * configurations are set up once and for all, we must provide a way to match
225 * one usb endpoint (usb_ep) to several pxa endpoints. The reason is that gadget
226 * layer autoconf doesn't choose the usb_ep endpoint on (config, interface, alt)
227 * criteria, while the pxa architecture requires that.
228 *
229 * The solution is to define several pxa endpoints matching one usb_ep. Ex:
230 * - "ep1-in" matches pxa endpoint EPA (which is an IN ep at addr 1, when
231 * the udc talks on (config=3, interface=0, alt=0)
232 * - "ep1-in" matches pxa endpoint EPB (which is an IN ep at addr 1, when
233 * the udc talks on (config=3, interface=0, alt=1)
234 * - "ep1-in" matches pxa endpoint EPC (which is an IN ep at addr 1, when
235 * the udc talks on (config=2, interface=0, alt=0)
236 *
237 * We'll define the pxa endpoint by its index (EPA => idx=1, EPB => idx=2, ...)
238 */
239
240/*
241 * Endpoint definition helpers
242 */
243#define USB_EP_DEF(addr, bname, dir, type, maxpkt) \
244{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, }, \
245 .desc = { .bEndpointAddress = addr | (dir ? USB_DIR_IN : 0), \
246 .bmAttributes = type, \
247 .wMaxPacketSize = maxpkt, }, \
248 .dev = &memory \
249}
250#define USB_EP_BULK(addr, bname, dir) \
251 USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE)
252#define USB_EP_ISO(addr, bname, dir) \
253 USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE)
254#define USB_EP_INT(addr, bname, dir) \
255 USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE)
256#define USB_EP_IN_BULK(n) USB_EP_BULK(n, "ep" #n "in-bulk", 1)
257#define USB_EP_OUT_BULK(n) USB_EP_BULK(n, "ep" #n "out-bulk", 0)
258#define USB_EP_IN_ISO(n) USB_EP_ISO(n, "ep" #n "in-iso", 1)
259#define USB_EP_OUT_ISO(n) USB_EP_ISO(n, "ep" #n "out-iso", 0)
260#define USB_EP_IN_INT(n) USB_EP_INT(n, "ep" #n "in-int", 1)
261#define USB_EP_CTRL USB_EP_DEF(0, "ep0", 0, 0, EP0_FIFO_SIZE)
262
263#define PXA_EP_DEF(_idx, _addr, dir, _type, maxpkt, _config, iface, altset) \
264{ \
265 .dev = &memory, \
266 .name = "ep" #_idx, \
267 .idx = _idx, .enabled = 0, \
268 .dir_in = dir, .addr = _addr, \
269 .config = _config, .interface = iface, .alternate = altset, \
270 .type = _type, .fifo_size = maxpkt, \
271}
272#define PXA_EP_BULK(_idx, addr, dir, config, iface, alt) \
273 PXA_EP_DEF(_idx, addr, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE, \
274 config, iface, alt)
275#define PXA_EP_ISO(_idx, addr, dir, config, iface, alt) \
276 PXA_EP_DEF(_idx, addr, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE, \
277 config, iface, alt)
278#define PXA_EP_INT(_idx, addr, dir, config, iface, alt) \
279 PXA_EP_DEF(_idx, addr, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE, \
280 config, iface, alt)
281#define PXA_EP_IN_BULK(i, adr, c, f, a) PXA_EP_BULK(i, adr, 1, c, f, a)
282#define PXA_EP_OUT_BULK(i, adr, c, f, a) PXA_EP_BULK(i, adr, 0, c, f, a)
283#define PXA_EP_IN_ISO(i, adr, c, f, a) PXA_EP_ISO(i, adr, 1, c, f, a)
284#define PXA_EP_OUT_ISO(i, adr, c, f, a) PXA_EP_ISO(i, adr, 0, c, f, a)
285#define PXA_EP_IN_INT(i, adr, c, f, a) PXA_EP_INT(i, adr, 1, c, f, a)
286#define PXA_EP_CTRL PXA_EP_DEF(0, 0, 0, 0, EP0_FIFO_SIZE, 0, 0, 0)
287
288struct pxa27x_udc;
289
290struct stats {
291 unsigned long in_ops;
292 unsigned long out_ops;
293 unsigned long in_bytes;
294 unsigned long out_bytes;
295 unsigned long irqs;
296};
297
298/**
299 * struct udc_usb_ep - container of each usb_ep structure
300 * @usb_ep: usb endpoint
301 * @desc: usb descriptor, especially type and address
302 * @dev: udc managing this endpoint
303 * @pxa_ep: matching pxa_ep (cache of find_pxa_ep() call)
304 */
305struct udc_usb_ep {
306 struct usb_ep usb_ep;
307 struct usb_endpoint_descriptor desc;
308 struct pxa_udc *dev;
309 struct pxa_ep *pxa_ep;
310};
311
312/**
313 * struct pxa_ep - pxa endpoint
314 * @dev: udc device
315 * @queue: requests queue
316 * @lock: lock to pxa_ep data (queues and stats)
317 * @enabled: true when endpoint enabled (not stopped by gadget layer)
318 * @idx: endpoint index (1 => epA, 2 => epB, ..., 24 => epX)
319 * @name: endpoint name (for trace/debug purpose)
320 * @dir_in: 1 if IN endpoint, 0 if OUT endpoint
321 * @addr: usb endpoint number
322 * @config: configuration in which this endpoint is active
323 * @interface: interface in which this endpoint is active
324 * @alternate: altsetting in which this endpoitn is active
325 * @fifo_size: max packet size in the endpoint fifo
326 * @type: endpoint type (bulk, iso, int, ...)
327 * @udccsr_value: save register of UDCCSR0 for suspend/resume
328 * @udccr_value: save register of UDCCR for suspend/resume
329 * @stats: endpoint statistics
330 *
331 * The *PROBLEM* is that pxa's endpoint configuration scheme is both misdesigned
332 * (cares about config/interface/altsetting, thus placing needless limits on
333 * device capability) and full of implementation bugs forcing it to be set up
334 * for use more or less like a pxa255.
335 *
336 * As we define the pxa_ep statically, we must guess all needed pxa_ep for all
337 * gadget which may work with this udc driver.
338 */
339struct pxa_ep {
340 struct pxa_udc *dev;
341
342 struct list_head queue;
343 spinlock_t lock; /* Protects this structure */
344 /* (queues, stats) */
345 unsigned enabled:1;
346
347 unsigned idx:5;
348 char *name;
349
350 /*
351 * Specific pxa endpoint data, needed for hardware initialization
352 */
353 unsigned dir_in:1;
354 unsigned addr:3;
355 unsigned config:2;
356 unsigned interface:3;
357 unsigned alternate:3;
358 unsigned fifo_size;
359 unsigned type;
360
361#ifdef CONFIG_PM
362 u32 udccsr_value;
363 u32 udccr_value;
364#endif
365 struct stats stats;
366};
367
368/**
369 * struct pxa27x_request - container of each usb_request structure
370 * @req: usb request
371 * @udc_usb_ep: usb endpoint the request was submitted on
372 * @in_use: sanity check if request already queued on an pxa_ep
373 * @queue: linked list of requests, linked on pxa_ep->queue
374 */
375struct pxa27x_request {
376 struct usb_request req;
377 struct udc_usb_ep *udc_usb_ep;
378 unsigned in_use:1;
379 struct list_head queue;
380};
381
382enum ep0_state {
383 WAIT_FOR_SETUP,
384 SETUP_STAGE,
385 IN_DATA_STAGE,
386 OUT_DATA_STAGE,
387 IN_STATUS_STAGE,
388 OUT_STATUS_STAGE,
389 STALL,
390 WAIT_ACK_SET_CONF_INTERF
391};
392
393static char *ep0_state_name[] = {
394 "WAIT_FOR_SETUP", "SETUP_STAGE", "IN_DATA_STAGE", "OUT_DATA_STAGE",
395 "IN_STATUS_STAGE", "OUT_STATUS_STAGE", "STALL",
396 "WAIT_ACK_SET_CONF_INTERF"
397};
398#define EP0_STNAME(udc) ep0_state_name[(udc)->ep0state]
399
400#define EP0_FIFO_SIZE 16U
401#define BULK_FIFO_SIZE 64U
402#define ISO_FIFO_SIZE 256U
403#define INT_FIFO_SIZE 16U
404
405struct udc_stats {
406 unsigned long irqs_reset;
407 unsigned long irqs_suspend;
408 unsigned long irqs_resume;
409 unsigned long irqs_reconfig;
410};
411
412#define NR_USB_ENDPOINTS (1 + 5) /* ep0 + ep1in-bulk + .. + ep3in-iso */
413#define NR_PXA_ENDPOINTS (1 + 14) /* ep0 + epA + epB + .. + epX */
414
415/**
416 * struct pxa_udc - udc structure
417 * @regs: mapped IO space
418 * @irq: udc irq
419 * @clk: udc clock
420 * @usb_gadget: udc gadget structure
421 * @driver: bound gadget (zero, g_ether, g_file_storage, ...)
422 * @dev: device
423 * @mach: machine info, used to activate specific GPIO
424 * @ep0state: control endpoint state machine state
425 * @stats: statistics on udc usage
426 * @udc_usb_ep: array of usb endpoints offered by the gadget
427 * @pxa_ep: array of pxa available endpoints
428 * @config: UDC active configuration
429 * @last_interface: UDC interface of the last SET_INTERFACE host request
430 * @last_alternate: UDC altsetting of the last SET_INTERFACE host request
431 * @udccsr0: save of udccsr0 in case of suspend
432 * @debugfs_root: root entry of debug filesystem
433 * @debugfs_state: debugfs entry for "udcstate"
434 * @debugfs_queues: debugfs entry for "queues"
435 * @debugfs_eps: debugfs entry for "epstate"
436 */
437struct pxa_udc {
438 void __iomem *regs;
439 int irq;
440 struct clk *clk;
441
442 struct usb_gadget gadget;
443 struct usb_gadget_driver *driver;
444 struct device *dev;
445 struct pxa2xx_udc_mach_info *mach;
446
447 enum ep0_state ep0state;
448 struct udc_stats stats;
449
450 struct udc_usb_ep udc_usb_ep[NR_USB_ENDPOINTS];
451 struct pxa_ep pxa_ep[NR_PXA_ENDPOINTS];
452
453 unsigned config:2;
454 unsigned last_interface:3;
455 unsigned last_alternate:3;
456
457#ifdef CONFIG_PM
458 unsigned udccsr0;
459#endif
460#ifdef CONFIG_USB_GADGET_DEBUG_FS
461 struct dentry *debugfs_root;
462 struct dentry *debugfs_state;
463 struct dentry *debugfs_queues;
464 struct dentry *debugfs_eps;
465#endif
466};
467
468static inline struct pxa_udc *to_gadget_udc(struct usb_gadget *gadget)
469{
470 return container_of(gadget, struct pxa_udc, gadget);
471}
472
473/*
474 * Debugging/message support
475 */
476#define ep_dbg(ep, fmt, arg...) \
477 dev_dbg(ep->dev->dev, "%s:%s: " fmt, EPNAME(ep), __func__, ## arg)
478#define ep_vdbg(ep, fmt, arg...) \
479 dev_vdbg(ep->dev->dev, "%s:%s: " fmt, EPNAME(ep), __func__, ## arg)
480#define ep_err(ep, fmt, arg...) \
481 dev_err(ep->dev->dev, "%s:%s: " fmt, EPNAME(ep), __func__, ## arg)
482#define ep_info(ep, fmt, arg...) \
483 dev_info(ep->dev->dev, "%s:%s: " fmt, EPNAME(ep), __func__, ## arg)
484#define ep_warn(ep, fmt, arg...) \
485 dev_warn(ep->dev->dev, "%s:%s:" fmt, EPNAME(ep), __func__, ## arg)
486
487#endif /* __LINUX_USB_GADGET_PXA27X_H */
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 8d158e5640e3..54cdd6f94034 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -135,7 +135,10 @@ struct gs_port {
135 int port_in_use; /* open/close in progress */ 135 int port_in_use; /* open/close in progress */
136 wait_queue_head_t port_write_wait;/* waiting to write */ 136 wait_queue_head_t port_write_wait;/* waiting to write */
137 struct gs_buf *port_write_buf; 137 struct gs_buf *port_write_buf;
138 struct usb_cdc_line_coding port_line_coding; 138 struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */
139 u16 port_handshake_bits;
140#define RS232_RTS (1 << 1)
141#define RS232_DTE (1 << 0)
139}; 142};
140 143
141/* the device structure holds info for the USB device */ 144/* the device structure holds info for the USB device */
@@ -199,6 +202,8 @@ static int gs_setup_standard(struct usb_gadget *gadget,
199static int gs_setup_class(struct usb_gadget *gadget, 202static int gs_setup_class(struct usb_gadget *gadget,
200 const struct usb_ctrlrequest *ctrl); 203 const struct usb_ctrlrequest *ctrl);
201static void gs_setup_complete(struct usb_ep *ep, struct usb_request *req); 204static void gs_setup_complete(struct usb_ep *ep, struct usb_request *req);
205static void gs_setup_complete_set_line_coding(struct usb_ep *ep,
206 struct usb_request *req);
202static void gs_disconnect(struct usb_gadget *gadget); 207static void gs_disconnect(struct usb_gadget *gadget);
203static int gs_set_config(struct gs_dev *dev, unsigned config); 208static int gs_set_config(struct gs_dev *dev, unsigned config);
204static void gs_reset_config(struct gs_dev *dev); 209static void gs_reset_config(struct gs_dev *dev);
@@ -406,7 +411,7 @@ static struct usb_cdc_acm_descriptor gs_acm_descriptor = {
406 .bLength = sizeof(gs_acm_descriptor), 411 .bLength = sizeof(gs_acm_descriptor),
407 .bDescriptorType = USB_DT_CS_INTERFACE, 412 .bDescriptorType = USB_DT_CS_INTERFACE,
408 .bDescriptorSubType = USB_CDC_ACM_TYPE, 413 .bDescriptorSubType = USB_CDC_ACM_TYPE,
409 .bmCapabilities = 0, 414 .bmCapabilities = (1 << 1),
410}; 415};
411 416
412static const struct usb_cdc_union_desc gs_union_desc = { 417static const struct usb_cdc_union_desc gs_union_desc = {
@@ -1502,6 +1507,8 @@ static int gs_setup(struct usb_gadget *gadget,
1502 u16 wValue = le16_to_cpu(ctrl->wValue); 1507 u16 wValue = le16_to_cpu(ctrl->wValue);
1503 u16 wLength = le16_to_cpu(ctrl->wLength); 1508 u16 wLength = le16_to_cpu(ctrl->wLength);
1504 1509
1510 req->complete = gs_setup_complete;
1511
1505 switch (ctrl->bRequestType & USB_TYPE_MASK) { 1512 switch (ctrl->bRequestType & USB_TYPE_MASK) {
1506 case USB_TYPE_STANDARD: 1513 case USB_TYPE_STANDARD:
1507 ret = gs_setup_standard(gadget,ctrl); 1514 ret = gs_setup_standard(gadget,ctrl);
@@ -1679,18 +1686,14 @@ static int gs_setup_class(struct usb_gadget *gadget,
1679 1686
1680 switch (ctrl->bRequest) { 1687 switch (ctrl->bRequest) {
1681 case USB_CDC_REQ_SET_LINE_CODING: 1688 case USB_CDC_REQ_SET_LINE_CODING:
1682 /* FIXME Submit req to read the data; have its completion 1689 if (wLength != sizeof(struct usb_cdc_line_coding))
1683 * handler copy that data to port->port_line_coding (iff 1690 break;
1684 * it's valid) and maybe pass it on. Until then, fail. 1691 ret = wLength;
1685 */ 1692 req->complete = gs_setup_complete_set_line_coding;
1686 pr_warning("gs_setup: set_line_coding "
1687 "unuspported\n");
1688 break; 1693 break;
1689 1694
1690 case USB_CDC_REQ_GET_LINE_CODING: 1695 case USB_CDC_REQ_GET_LINE_CODING:
1691 port = dev->dev_port[0]; /* ACM only has one port */ 1696 ret = min_t(int, wLength, sizeof(struct usb_cdc_line_coding));
1692 ret = min(wLength,
1693 (u16)sizeof(struct usb_cdc_line_coding));
1694 if (port) { 1697 if (port) {
1695 spin_lock(&port->port_lock); 1698 spin_lock(&port->port_lock);
1696 memcpy(req->buf, &port->port_line_coding, ret); 1699 memcpy(req->buf, &port->port_line_coding, ret);
@@ -1699,15 +1702,27 @@ static int gs_setup_class(struct usb_gadget *gadget,
1699 break; 1702 break;
1700 1703
1701 case USB_CDC_REQ_SET_CONTROL_LINE_STATE: 1704 case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
1702 /* FIXME Submit req to read the data; have its completion 1705 if (wLength != 0)
1703 * handler use that to set the state (iff it's valid) and 1706 break;
1704 * maybe pass it on. Until then, fail. 1707 ret = 0;
1705 */ 1708 if (port) {
1706 pr_warning("gs_setup: set_control_line_state " 1709 /* REVISIT: we currently just remember this data.
1707 "unuspported\n"); 1710 * If we change that, update whatever hardware needs
1711 * updating.
1712 */
1713 spin_lock(&port->port_lock);
1714 port->port_handshake_bits = wValue;
1715 spin_unlock(&port->port_lock);
1716 }
1708 break; 1717 break;
1709 1718
1710 default: 1719 default:
1720 /* NOTE: strictly speaking, we should accept AT-commands
1721 * using SEND_ENCPSULATED_COMMAND/GET_ENCAPSULATED_RESPONSE.
1722 * But our call management descriptor says we don't handle
1723 * call management, so we should be able to get by without
1724 * handling those "required" commands (except by stalling).
1725 */
1711 pr_err("gs_setup: unknown class request, " 1726 pr_err("gs_setup: unknown class request, "
1712 "type=%02x, request=%02x, value=%04x, " 1727 "type=%02x, request=%02x, value=%04x, "
1713 "index=%04x, length=%d\n", 1728 "index=%04x, length=%d\n",
@@ -1719,6 +1734,42 @@ static int gs_setup_class(struct usb_gadget *gadget,
1719 return ret; 1734 return ret;
1720} 1735}
1721 1736
1737static void gs_setup_complete_set_line_coding(struct usb_ep *ep,
1738 struct usb_request *req)
1739{
1740 struct gs_dev *dev = ep->driver_data;
1741 struct gs_port *port = dev->dev_port[0]; /* ACM only has one port */
1742
1743 switch (req->status) {
1744 case 0:
1745 /* normal completion */
1746 if (req->actual != sizeof(port->port_line_coding))
1747 usb_ep_set_halt(ep);
1748 else if (port) {
1749 struct usb_cdc_line_coding *value = req->buf;
1750
1751 /* REVISIT: we currently just remember this data.
1752 * If we change that, (a) validate it first, then
1753 * (b) update whatever hardware needs updating.
1754 */
1755 spin_lock(&port->port_lock);
1756 port->port_line_coding = *value;
1757 spin_unlock(&port->port_lock);
1758 }
1759 break;
1760
1761 case -ESHUTDOWN:
1762 /* disconnect */
1763 gs_free_req(ep, req);
1764 break;
1765
1766 default:
1767 /* unexpected */
1768 break;
1769 }
1770 return;
1771}
1772
1722/* 1773/*
1723 * gs_setup_complete 1774 * gs_setup_complete
1724 */ 1775 */
@@ -1906,6 +1957,11 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
1906 } 1957 }
1907 } 1958 }
1908 1959
1960 /* REVISIT the ACM mode should be able to actually *issue* some
1961 * notifications, for at least serial state change events if
1962 * not also for network connection; say so in bmCapabilities.
1963 */
1964
1909 pr_info("gs_set_config: %s configured, %s speed %s config\n", 1965 pr_info("gs_set_config: %s configured, %s speed %s config\n",
1910 GS_LONG_NAME, 1966 GS_LONG_NAME,
1911 gadget->speed == USB_SPEED_HIGH ? "high" : "full", 1967 gadget->speed == USB_SPEED_HIGH ? "high" : "full",
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index d3d4f4048e6c..fce4924dbbe8 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -23,9 +23,7 @@
23/* 23/*
24 * Gadget Zero only needs two bulk endpoints, and is an example of how you 24 * Gadget Zero only needs two bulk endpoints, and is an example of how you
25 * can write a hardware-agnostic gadget driver running inside a USB device. 25 * can write a hardware-agnostic gadget driver running inside a USB device.
26 * 26 * Some hardware details are visible, but don't affect most of the driver.
27 * Hardware details are visible (see CONFIG_USB_ZERO_* below) but don't
28 * affect most of the driver.
29 * 27 *
30 * Use it with the Linux host/master side "usbtest" driver to get a basic 28 * Use it with the Linux host/master side "usbtest" driver to get a basic
31 * functional test of your device-side usb stack, or with "usb-skeleton". 29 * functional test of your device-side usb stack, or with "usb-skeleton".
@@ -37,6 +35,7 @@
37 * buflen=N default N=4096, buffer size used 35 * buflen=N default N=4096, buffer size used
38 * qlen=N default N=32, how many buffers in the loopback queue 36 * qlen=N default N=32, how many buffers in the loopback queue
39 * loopdefault default false, list loopback config first 37 * loopdefault default false, list loopback config first
38 * autoresume=N default N=0, seconds before triggering remote wakeup
40 * 39 *
41 * Many drivers will only have one configuration, letting them be much 40 * Many drivers will only have one configuration, letting them be much
42 * simpler if they also don't support high speed operation (like this 41 * simpler if they also don't support high speed operation (like this
@@ -62,13 +61,13 @@
62 61
63/*-------------------------------------------------------------------------*/ 62/*-------------------------------------------------------------------------*/
64 63
65#define DRIVER_VERSION "Lughnasadh, 2007" 64#define DRIVER_VERSION "Earth Day 2008"
66 65
67static const char shortname [] = "zero"; 66static const char shortname[] = "zero";
68static const char longname [] = "Gadget Zero"; 67static const char longname[] = "Gadget Zero";
69 68
70static const char source_sink [] = "source and sink data"; 69static const char source_sink[] = "source and sink data";
71static const char loopback [] = "loop input to output"; 70static const char loopback[] = "loop input to output";
72 71
73/*-------------------------------------------------------------------------*/ 72/*-------------------------------------------------------------------------*/
74 73
@@ -120,16 +119,16 @@ static unsigned buflen = 4096;
120static unsigned qlen = 32; 119static unsigned qlen = 32;
121static unsigned pattern = 0; 120static unsigned pattern = 0;
122 121
123module_param (buflen, uint, S_IRUGO); 122module_param(buflen, uint, S_IRUGO);
124module_param (qlen, uint, S_IRUGO); 123module_param(qlen, uint, S_IRUGO);
125module_param (pattern, uint, S_IRUGO|S_IWUSR); 124module_param(pattern, uint, S_IRUGO|S_IWUSR);
126 125
127/* 126/*
128 * if it's nonzero, autoresume says how many seconds to wait 127 * if it's nonzero, autoresume says how many seconds to wait
129 * before trying to wake up the host after suspend. 128 * before trying to wake up the host after suspend.
130 */ 129 */
131static unsigned autoresume = 0; 130static unsigned autoresume = 0;
132module_param (autoresume, uint, 0); 131module_param(autoresume, uint, 0);
133 132
134/* 133/*
135 * Normally the "loopback" configuration is second (index 1) so 134 * Normally the "loopback" configuration is second (index 1) so
@@ -138,8 +137,7 @@ module_param (autoresume, uint, 0);
138 * Or controllers (like superh) that only support one config. 137 * Or controllers (like superh) that only support one config.
139 */ 138 */
140static int loopdefault = 0; 139static int loopdefault = 0;
141 140module_param(loopdefault, bool, S_IRUGO|S_IWUSR);
142module_param (loopdefault, bool, S_IRUGO|S_IWUSR);
143 141
144/*-------------------------------------------------------------------------*/ 142/*-------------------------------------------------------------------------*/
145 143
@@ -176,24 +174,22 @@ module_param (loopdefault, bool, S_IRUGO|S_IWUSR);
176#define CONFIG_SOURCE_SINK 3 174#define CONFIG_SOURCE_SINK 3
177#define CONFIG_LOOPBACK 2 175#define CONFIG_LOOPBACK 2
178 176
179static struct usb_device_descriptor 177static struct usb_device_descriptor device_desc = {
180device_desc = {
181 .bLength = sizeof device_desc, 178 .bLength = sizeof device_desc,
182 .bDescriptorType = USB_DT_DEVICE, 179 .bDescriptorType = USB_DT_DEVICE,
183 180
184 .bcdUSB = __constant_cpu_to_le16 (0x0200), 181 .bcdUSB = __constant_cpu_to_le16(0x0200),
185 .bDeviceClass = USB_CLASS_VENDOR_SPEC, 182 .bDeviceClass = USB_CLASS_VENDOR_SPEC,
186 183
187 .idVendor = __constant_cpu_to_le16 (DRIVER_VENDOR_NUM), 184 .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM),
188 .idProduct = __constant_cpu_to_le16 (DRIVER_PRODUCT_NUM), 185 .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM),
189 .iManufacturer = STRING_MANUFACTURER, 186 .iManufacturer = STRING_MANUFACTURER,
190 .iProduct = STRING_PRODUCT, 187 .iProduct = STRING_PRODUCT,
191 .iSerialNumber = STRING_SERIAL, 188 .iSerialNumber = STRING_SERIAL,
192 .bNumConfigurations = 2, 189 .bNumConfigurations = 2,
193}; 190};
194 191
195static struct usb_config_descriptor 192static struct usb_config_descriptor source_sink_config = {
196source_sink_config = {
197 .bLength = sizeof source_sink_config, 193 .bLength = sizeof source_sink_config,
198 .bDescriptorType = USB_DT_CONFIG, 194 .bDescriptorType = USB_DT_CONFIG,
199 195
@@ -205,8 +201,7 @@ source_sink_config = {
205 .bMaxPower = 1, /* self-powered */ 201 .bMaxPower = 1, /* self-powered */
206}; 202};
207 203
208static struct usb_config_descriptor 204static struct usb_config_descriptor loopback_config = {
209loopback_config = {
210 .bLength = sizeof loopback_config, 205 .bLength = sizeof loopback_config,
211 .bDescriptorType = USB_DT_CONFIG, 206 .bDescriptorType = USB_DT_CONFIG,
212 207
@@ -218,8 +213,7 @@ loopback_config = {
218 .bMaxPower = 1, /* self-powered */ 213 .bMaxPower = 1, /* self-powered */
219}; 214};
220 215
221static struct usb_otg_descriptor 216static struct usb_otg_descriptor otg_descriptor = {
222otg_descriptor = {
223 .bLength = sizeof otg_descriptor, 217 .bLength = sizeof otg_descriptor,
224 .bDescriptorType = USB_DT_OTG, 218 .bDescriptorType = USB_DT_OTG,
225 219
@@ -228,8 +222,7 @@ otg_descriptor = {
228 222
229/* one interface in each configuration */ 223/* one interface in each configuration */
230 224
231static const struct usb_interface_descriptor 225static const struct usb_interface_descriptor source_sink_intf = {
232source_sink_intf = {
233 .bLength = sizeof source_sink_intf, 226 .bLength = sizeof source_sink_intf,
234 .bDescriptorType = USB_DT_INTERFACE, 227 .bDescriptorType = USB_DT_INTERFACE,
235 228
@@ -238,8 +231,7 @@ source_sink_intf = {
238 .iInterface = STRING_SOURCE_SINK, 231 .iInterface = STRING_SOURCE_SINK,
239}; 232};
240 233
241static const struct usb_interface_descriptor 234static const struct usb_interface_descriptor loopback_intf = {
242loopback_intf = {
243 .bLength = sizeof loopback_intf, 235 .bLength = sizeof loopback_intf,
244 .bDescriptorType = USB_DT_INTERFACE, 236 .bDescriptorType = USB_DT_INTERFACE,
245 237
@@ -250,8 +242,7 @@ loopback_intf = {
250 242
251/* two full speed bulk endpoints; their use is config-dependent */ 243/* two full speed bulk endpoints; their use is config-dependent */
252 244
253static struct usb_endpoint_descriptor 245static struct usb_endpoint_descriptor fs_source_desc = {
254fs_source_desc = {
255 .bLength = USB_DT_ENDPOINT_SIZE, 246 .bLength = USB_DT_ENDPOINT_SIZE,
256 .bDescriptorType = USB_DT_ENDPOINT, 247 .bDescriptorType = USB_DT_ENDPOINT,
257 248
@@ -259,8 +250,7 @@ fs_source_desc = {
259 .bmAttributes = USB_ENDPOINT_XFER_BULK, 250 .bmAttributes = USB_ENDPOINT_XFER_BULK,
260}; 251};
261 252
262static struct usb_endpoint_descriptor 253static struct usb_endpoint_descriptor fs_sink_desc = {
263fs_sink_desc = {
264 .bLength = USB_DT_ENDPOINT_SIZE, 254 .bLength = USB_DT_ENDPOINT_SIZE,
265 .bDescriptorType = USB_DT_ENDPOINT, 255 .bDescriptorType = USB_DT_ENDPOINT,
266 256
@@ -268,7 +258,7 @@ fs_sink_desc = {
268 .bmAttributes = USB_ENDPOINT_XFER_BULK, 258 .bmAttributes = USB_ENDPOINT_XFER_BULK,
269}; 259};
270 260
271static const struct usb_descriptor_header *fs_source_sink_function [] = { 261static const struct usb_descriptor_header *fs_source_sink_function[] = {
272 (struct usb_descriptor_header *) &otg_descriptor, 262 (struct usb_descriptor_header *) &otg_descriptor,
273 (struct usb_descriptor_header *) &source_sink_intf, 263 (struct usb_descriptor_header *) &source_sink_intf,
274 (struct usb_descriptor_header *) &fs_sink_desc, 264 (struct usb_descriptor_header *) &fs_sink_desc,
@@ -276,7 +266,7 @@ static const struct usb_descriptor_header *fs_source_sink_function [] = {
276 NULL, 266 NULL,
277}; 267};
278 268
279static const struct usb_descriptor_header *fs_loopback_function [] = { 269static const struct usb_descriptor_header *fs_loopback_function[] = {
280 (struct usb_descriptor_header *) &otg_descriptor, 270 (struct usb_descriptor_header *) &otg_descriptor,
281 (struct usb_descriptor_header *) &loopback_intf, 271 (struct usb_descriptor_header *) &loopback_intf,
282 (struct usb_descriptor_header *) &fs_sink_desc, 272 (struct usb_descriptor_header *) &fs_sink_desc,
@@ -293,36 +283,33 @@ static const struct usb_descriptor_header *fs_loopback_function [] = {
293 * for the config descriptor. 283 * for the config descriptor.
294 */ 284 */
295 285
296static struct usb_endpoint_descriptor 286static struct usb_endpoint_descriptor hs_source_desc = {
297hs_source_desc = {
298 .bLength = USB_DT_ENDPOINT_SIZE, 287 .bLength = USB_DT_ENDPOINT_SIZE,
299 .bDescriptorType = USB_DT_ENDPOINT, 288 .bDescriptorType = USB_DT_ENDPOINT,
300 289
301 .bmAttributes = USB_ENDPOINT_XFER_BULK, 290 .bmAttributes = USB_ENDPOINT_XFER_BULK,
302 .wMaxPacketSize = __constant_cpu_to_le16 (512), 291 .wMaxPacketSize = __constant_cpu_to_le16(512),
303}; 292};
304 293
305static struct usb_endpoint_descriptor 294static struct usb_endpoint_descriptor hs_sink_desc = {
306hs_sink_desc = {
307 .bLength = USB_DT_ENDPOINT_SIZE, 295 .bLength = USB_DT_ENDPOINT_SIZE,
308 .bDescriptorType = USB_DT_ENDPOINT, 296 .bDescriptorType = USB_DT_ENDPOINT,
309 297
310 .bmAttributes = USB_ENDPOINT_XFER_BULK, 298 .bmAttributes = USB_ENDPOINT_XFER_BULK,
311 .wMaxPacketSize = __constant_cpu_to_le16 (512), 299 .wMaxPacketSize = __constant_cpu_to_le16(512),
312}; 300};
313 301
314static struct usb_qualifier_descriptor 302static struct usb_qualifier_descriptor dev_qualifier = {
315dev_qualifier = {
316 .bLength = sizeof dev_qualifier, 303 .bLength = sizeof dev_qualifier,
317 .bDescriptorType = USB_DT_DEVICE_QUALIFIER, 304 .bDescriptorType = USB_DT_DEVICE_QUALIFIER,
318 305
319 .bcdUSB = __constant_cpu_to_le16 (0x0200), 306 .bcdUSB = __constant_cpu_to_le16(0x0200),
320 .bDeviceClass = USB_CLASS_VENDOR_SPEC, 307 .bDeviceClass = USB_CLASS_VENDOR_SPEC,
321 308
322 .bNumConfigurations = 2, 309 .bNumConfigurations = 2,
323}; 310};
324 311
325static const struct usb_descriptor_header *hs_source_sink_function [] = { 312static const struct usb_descriptor_header *hs_source_sink_function[] = {
326 (struct usb_descriptor_header *) &otg_descriptor, 313 (struct usb_descriptor_header *) &otg_descriptor,
327 (struct usb_descriptor_header *) &source_sink_intf, 314 (struct usb_descriptor_header *) &source_sink_intf,
328 (struct usb_descriptor_header *) &hs_source_desc, 315 (struct usb_descriptor_header *) &hs_source_desc,
@@ -330,7 +317,7 @@ static const struct usb_descriptor_header *hs_source_sink_function [] = {
330 NULL, 317 NULL,
331}; 318};
332 319
333static const struct usb_descriptor_header *hs_loopback_function [] = { 320static const struct usb_descriptor_header *hs_loopback_function[] = {
334 (struct usb_descriptor_header *) &otg_descriptor, 321 (struct usb_descriptor_header *) &otg_descriptor,
335 (struct usb_descriptor_header *) &loopback_intf, 322 (struct usb_descriptor_header *) &loopback_intf,
336 (struct usb_descriptor_header *) &hs_source_desc, 323 (struct usb_descriptor_header *) &hs_source_desc,
@@ -355,7 +342,7 @@ static char serial[] = "0123456789.0123456789.0123456789";
355 342
356 343
357/* static strings, in UTF-8 */ 344/* static strings, in UTF-8 */
358static struct usb_string strings [] = { 345static struct usb_string strings[] = {
359 { STRING_MANUFACTURER, manufacturer, }, 346 { STRING_MANUFACTURER, manufacturer, },
360 { STRING_PRODUCT, longname, }, 347 { STRING_PRODUCT, longname, },
361 { STRING_SERIAL, serial, }, 348 { STRING_SERIAL, serial, },
@@ -364,7 +351,7 @@ static struct usb_string strings [] = {
364 { } /* end of list */ 351 { } /* end of list */
365}; 352};
366 353
367static struct usb_gadget_strings stringtab = { 354static struct usb_gadget_strings stringtab = {
368 .language = 0x0409, /* en-us */ 355 .language = 0x0409, /* en-us */
369 .strings = strings, 356 .strings = strings,
370}; 357};
@@ -387,8 +374,7 @@ static struct usb_gadget_strings stringtab = {
387 * high bandwidth modes at high speed. (Maybe work like Intel's test 374 * high bandwidth modes at high speed. (Maybe work like Intel's test
388 * device?) 375 * device?)
389 */ 376 */
390static int 377static int config_buf(struct usb_gadget *gadget,
391config_buf (struct usb_gadget *gadget,
392 u8 *buf, u8 type, unsigned index) 378 u8 *buf, u8 type, unsigned index)
393{ 379{
394 int is_source_sink; 380 int is_source_sink;
@@ -419,7 +405,7 @@ config_buf (struct usb_gadget *gadget,
419 if (!gadget_is_otg(gadget)) 405 if (!gadget_is_otg(gadget))
420 function++; 406 function++;
421 407
422 len = usb_gadget_config_buf (is_source_sink 408 len = usb_gadget_config_buf(is_source_sink
423 ? &source_sink_config 409 ? &source_sink_config
424 : &loopback_config, 410 : &loopback_config,
425 buf, USB_BUFSIZ, function); 411 buf, USB_BUFSIZ, function);
@@ -431,27 +417,26 @@ config_buf (struct usb_gadget *gadget,
431 417
432/*-------------------------------------------------------------------------*/ 418/*-------------------------------------------------------------------------*/
433 419
434static struct usb_request * 420static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length)
435alloc_ep_req (struct usb_ep *ep, unsigned length)
436{ 421{
437 struct usb_request *req; 422 struct usb_request *req;
438 423
439 req = usb_ep_alloc_request (ep, GFP_ATOMIC); 424 req = usb_ep_alloc_request(ep, GFP_ATOMIC);
440 if (req) { 425 if (req) {
441 req->length = length; 426 req->length = length;
442 req->buf = kmalloc(length, GFP_ATOMIC); 427 req->buf = kmalloc(length, GFP_ATOMIC);
443 if (!req->buf) { 428 if (!req->buf) {
444 usb_ep_free_request (ep, req); 429 usb_ep_free_request(ep, req);
445 req = NULL; 430 req = NULL;
446 } 431 }
447 } 432 }
448 return req; 433 return req;
449} 434}
450 435
451static void free_ep_req (struct usb_ep *ep, struct usb_request *req) 436static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
452{ 437{
453 kfree(req->buf); 438 kfree(req->buf);
454 usb_ep_free_request (ep, req); 439 usb_ep_free_request(ep, req);
455} 440}
456 441
457/*-------------------------------------------------------------------------*/ 442/*-------------------------------------------------------------------------*/
@@ -472,7 +457,7 @@ static void free_ep_req (struct usb_ep *ep, struct usb_request *req)
472/* optionally require specific source/sink data patterns */ 457/* optionally require specific source/sink data patterns */
473 458
474static int 459static int
475check_read_data ( 460check_read_data(
476 struct zero_dev *dev, 461 struct zero_dev *dev,
477 struct usb_ep *ep, 462 struct usb_ep *ep,
478 struct usb_request *req 463 struct usb_request *req
@@ -498,8 +483,8 @@ check_read_data (
498 continue; 483 continue;
499 break; 484 break;
500 } 485 }
501 ERROR (dev, "bad OUT byte, buf [%d] = %d\n", i, *buf); 486 ERROR(dev, "bad OUT byte, buf[%d] = %d\n", i, *buf);
502 usb_ep_set_halt (ep); 487 usb_ep_set_halt(ep);
503 return -EINVAL; 488 return -EINVAL;
504 } 489 }
505 return 0; 490 return 0;
@@ -512,7 +497,7 @@ static void reinit_write_data(struct usb_ep *ep, struct usb_request *req)
512 497
513 switch (pattern) { 498 switch (pattern) {
514 case 0: 499 case 0:
515 memset (req->buf, 0, req->length); 500 memset(req->buf, 0, req->length);
516 break; 501 break;
517 case 1: 502 case 1:
518 for (i = 0; i < req->length; i++) 503 for (i = 0; i < req->length; i++)
@@ -525,7 +510,7 @@ static void reinit_write_data(struct usb_ep *ep, struct usb_request *req)
525 * irq delay between end of one request and start of the next. 510 * irq delay between end of one request and start of the next.
526 * that prevents using hardware dma queues. 511 * that prevents using hardware dma queues.
527 */ 512 */
528static void source_sink_complete (struct usb_ep *ep, struct usb_request *req) 513static void source_sink_complete(struct usb_ep *ep, struct usb_request *req)
529{ 514{
530 struct zero_dev *dev = ep->driver_data; 515 struct zero_dev *dev = ep->driver_data;
531 int status = req->status; 516 int status = req->status;
@@ -534,8 +519,8 @@ static void source_sink_complete (struct usb_ep *ep, struct usb_request *req)
534 519
535 case 0: /* normal completion? */ 520 case 0: /* normal completion? */
536 if (ep == dev->out_ep) { 521 if (ep == dev->out_ep) {
537 check_read_data (dev, ep, req); 522 check_read_data(dev, ep, req);
538 memset (req->buf, 0x55, req->length); 523 memset(req->buf, 0x55, req->length);
539 } else 524 } else
540 reinit_write_data(ep, req); 525 reinit_write_data(ep, req);
541 break; 526 break;
@@ -544,11 +529,11 @@ static void source_sink_complete (struct usb_ep *ep, struct usb_request *req)
544 case -ECONNABORTED: /* hardware forced ep reset */ 529 case -ECONNABORTED: /* hardware forced ep reset */
545 case -ECONNRESET: /* request dequeued */ 530 case -ECONNRESET: /* request dequeued */
546 case -ESHUTDOWN: /* disconnect from host */ 531 case -ESHUTDOWN: /* disconnect from host */
547 VDBG (dev, "%s gone (%d), %d/%d\n", ep->name, status, 532 VDBG(dev, "%s gone (%d), %d/%d\n", ep->name, status,
548 req->actual, req->length); 533 req->actual, req->length);
549 if (ep == dev->out_ep) 534 if (ep == dev->out_ep)
550 check_read_data (dev, ep, req); 535 check_read_data(dev, ep, req);
551 free_ep_req (ep, req); 536 free_ep_req(ep, req);
552 return; 537 return;
553 538
554 case -EOVERFLOW: /* buffer overrun on read means that 539 case -EOVERFLOW: /* buffer overrun on read means that
@@ -557,18 +542,18 @@ static void source_sink_complete (struct usb_ep *ep, struct usb_request *req)
557 */ 542 */
558 default: 543 default:
559#if 1 544#if 1
560 DBG (dev, "%s complete --> %d, %d/%d\n", ep->name, 545 DBG(dev, "%s complete --> %d, %d/%d\n", ep->name,
561 status, req->actual, req->length); 546 status, req->actual, req->length);
562#endif 547#endif
563 case -EREMOTEIO: /* short read */ 548 case -EREMOTEIO: /* short read */
564 break; 549 break;
565 } 550 }
566 551
567 status = usb_ep_queue (ep, req, GFP_ATOMIC); 552 status = usb_ep_queue(ep, req, GFP_ATOMIC);
568 if (status) { 553 if (status) {
569 ERROR (dev, "kill %s: resubmit %d bytes --> %d\n", 554 ERROR(dev, "kill %s: resubmit %d bytes --> %d\n",
570 ep->name, req->length, status); 555 ep->name, req->length, status);
571 usb_ep_set_halt (ep); 556 usb_ep_set_halt(ep);
572 /* FIXME recover later ... somehow */ 557 /* FIXME recover later ... somehow */
573 } 558 }
574} 559}
@@ -578,24 +563,24 @@ static struct usb_request *source_sink_start_ep(struct usb_ep *ep)
578 struct usb_request *req; 563 struct usb_request *req;
579 int status; 564 int status;
580 565
581 req = alloc_ep_req (ep, buflen); 566 req = alloc_ep_req(ep, buflen);
582 if (!req) 567 if (!req)
583 return NULL; 568 return NULL;
584 569
585 memset (req->buf, 0, req->length); 570 memset(req->buf, 0, req->length);
586 req->complete = source_sink_complete; 571 req->complete = source_sink_complete;
587 572
588 if (strcmp (ep->name, EP_IN_NAME) == 0) 573 if (strcmp(ep->name, EP_IN_NAME) == 0)
589 reinit_write_data(ep, req); 574 reinit_write_data(ep, req);
590 else 575 else
591 memset (req->buf, 0x55, req->length); 576 memset(req->buf, 0x55, req->length);
592 577
593 status = usb_ep_queue(ep, req, GFP_ATOMIC); 578 status = usb_ep_queue(ep, req, GFP_ATOMIC);
594 if (status) { 579 if (status) {
595 struct zero_dev *dev = ep->driver_data; 580 struct zero_dev *dev = ep->driver_data;
596 581
597 ERROR (dev, "start %s --> %d\n", ep->name, status); 582 ERROR(dev, "start %s --> %d\n", ep->name, status);
598 free_ep_req (ep, req); 583 free_ep_req(ep, req);
599 req = NULL; 584 req = NULL;
600 } 585 }
601 586
@@ -608,34 +593,34 @@ static int set_source_sink_config(struct zero_dev *dev)
608 struct usb_ep *ep; 593 struct usb_ep *ep;
609 struct usb_gadget *gadget = dev->gadget; 594 struct usb_gadget *gadget = dev->gadget;
610 595
611 gadget_for_each_ep (ep, gadget) { 596 gadget_for_each_ep(ep, gadget) {
612 const struct usb_endpoint_descriptor *d; 597 const struct usb_endpoint_descriptor *d;
613 598
614 /* one endpoint writes (sources) zeroes in (to the host) */ 599 /* one endpoint writes (sources) zeroes in (to the host) */
615 if (strcmp (ep->name, EP_IN_NAME) == 0) { 600 if (strcmp(ep->name, EP_IN_NAME) == 0) {
616 d = ep_desc (gadget, &hs_source_desc, &fs_source_desc); 601 d = ep_desc(gadget, &hs_source_desc, &fs_source_desc);
617 result = usb_ep_enable (ep, d); 602 result = usb_ep_enable(ep, d);
618 if (result == 0) { 603 if (result == 0) {
619 ep->driver_data = dev; 604 ep->driver_data = dev;
620 if (source_sink_start_ep(ep) != NULL) { 605 if (source_sink_start_ep(ep) != NULL) {
621 dev->in_ep = ep; 606 dev->in_ep = ep;
622 continue; 607 continue;
623 } 608 }
624 usb_ep_disable (ep); 609 usb_ep_disable(ep);
625 result = -EIO; 610 result = -EIO;
626 } 611 }
627 612
628 /* one endpoint reads (sinks) anything out (from the host) */ 613 /* one endpoint reads (sinks) anything out (from the host) */
629 } else if (strcmp (ep->name, EP_OUT_NAME) == 0) { 614 } else if (strcmp(ep->name, EP_OUT_NAME) == 0) {
630 d = ep_desc (gadget, &hs_sink_desc, &fs_sink_desc); 615 d = ep_desc(gadget, &hs_sink_desc, &fs_sink_desc);
631 result = usb_ep_enable (ep, d); 616 result = usb_ep_enable(ep, d);
632 if (result == 0) { 617 if (result == 0) {
633 ep->driver_data = dev; 618 ep->driver_data = dev;
634 if (source_sink_start_ep(ep) != NULL) { 619 if (source_sink_start_ep(ep) != NULL) {
635 dev->out_ep = ep; 620 dev->out_ep = ep;
636 continue; 621 continue;
637 } 622 }
638 usb_ep_disable (ep); 623 usb_ep_disable(ep);
639 result = -EIO; 624 result = -EIO;
640 } 625 }
641 626
@@ -644,11 +629,11 @@ static int set_source_sink_config(struct zero_dev *dev)
644 continue; 629 continue;
645 630
646 /* stop on error */ 631 /* stop on error */
647 ERROR (dev, "can't start %s, result %d\n", ep->name, result); 632 ERROR(dev, "can't start %s, result %d\n", ep->name, result);
648 break; 633 break;
649 } 634 }
650 if (result == 0) 635 if (result == 0)
651 DBG (dev, "buflen %d\n", buflen); 636 DBG(dev, "buflen %d\n", buflen);
652 637
653 /* caller is responsible for cleanup on error */ 638 /* caller is responsible for cleanup on error */
654 return result; 639 return result;
@@ -656,7 +641,7 @@ static int set_source_sink_config(struct zero_dev *dev)
656 641
657/*-------------------------------------------------------------------------*/ 642/*-------------------------------------------------------------------------*/
658 643
659static void loopback_complete (struct usb_ep *ep, struct usb_request *req) 644static void loopback_complete(struct usb_ep *ep, struct usb_request *req)
660{ 645{
661 struct zero_dev *dev = ep->driver_data; 646 struct zero_dev *dev = ep->driver_data;
662 int status = req->status; 647 int status = req->status;
@@ -668,19 +653,19 @@ static void loopback_complete (struct usb_ep *ep, struct usb_request *req)
668 /* loop this OUT packet back IN to the host */ 653 /* loop this OUT packet back IN to the host */
669 req->zero = (req->actual < req->length); 654 req->zero = (req->actual < req->length);
670 req->length = req->actual; 655 req->length = req->actual;
671 status = usb_ep_queue (dev->in_ep, req, GFP_ATOMIC); 656 status = usb_ep_queue(dev->in_ep, req, GFP_ATOMIC);
672 if (status == 0) 657 if (status == 0)
673 return; 658 return;
674 659
675 /* "should never get here" */ 660 /* "should never get here" */
676 ERROR (dev, "can't loop %s to %s: %d\n", 661 ERROR(dev, "can't loop %s to %s: %d\n",
677 ep->name, dev->in_ep->name, 662 ep->name, dev->in_ep->name,
678 status); 663 status);
679 } 664 }
680 665
681 /* queue the buffer for some later OUT packet */ 666 /* queue the buffer for some later OUT packet */
682 req->length = buflen; 667 req->length = buflen;
683 status = usb_ep_queue (dev->out_ep, req, GFP_ATOMIC); 668 status = usb_ep_queue(dev->out_ep, req, GFP_ATOMIC);
684 if (status == 0) 669 if (status == 0)
685 return; 670 return;
686 671
@@ -688,7 +673,7 @@ static void loopback_complete (struct usb_ep *ep, struct usb_request *req)
688 /* FALLTHROUGH */ 673 /* FALLTHROUGH */
689 674
690 default: 675 default:
691 ERROR (dev, "%s loop complete --> %d, %d/%d\n", ep->name, 676 ERROR(dev, "%s loop complete --> %d, %d/%d\n", ep->name,
692 status, req->actual, req->length); 677 status, req->actual, req->length);
693 /* FALLTHROUGH */ 678 /* FALLTHROUGH */
694 679
@@ -700,7 +685,7 @@ static void loopback_complete (struct usb_ep *ep, struct usb_request *req)
700 case -ECONNABORTED: /* hardware forced ep reset */ 685 case -ECONNABORTED: /* hardware forced ep reset */
701 case -ECONNRESET: /* request dequeued */ 686 case -ECONNRESET: /* request dequeued */
702 case -ESHUTDOWN: /* disconnect from host */ 687 case -ESHUTDOWN: /* disconnect from host */
703 free_ep_req (ep, req); 688 free_ep_req(ep, req);
704 return; 689 return;
705 } 690 }
706} 691}
@@ -711,13 +696,13 @@ static int set_loopback_config(struct zero_dev *dev)
711 struct usb_ep *ep; 696 struct usb_ep *ep;
712 struct usb_gadget *gadget = dev->gadget; 697 struct usb_gadget *gadget = dev->gadget;
713 698
714 gadget_for_each_ep (ep, gadget) { 699 gadget_for_each_ep(ep, gadget) {
715 const struct usb_endpoint_descriptor *d; 700 const struct usb_endpoint_descriptor *d;
716 701
717 /* one endpoint writes data back IN to the host */ 702 /* one endpoint writes data back IN to the host */
718 if (strcmp (ep->name, EP_IN_NAME) == 0) { 703 if (strcmp(ep->name, EP_IN_NAME) == 0) {
719 d = ep_desc (gadget, &hs_source_desc, &fs_source_desc); 704 d = ep_desc(gadget, &hs_source_desc, &fs_source_desc);
720 result = usb_ep_enable (ep, d); 705 result = usb_ep_enable(ep, d);
721 if (result == 0) { 706 if (result == 0) {
722 ep->driver_data = dev; 707 ep->driver_data = dev;
723 dev->in_ep = ep; 708 dev->in_ep = ep;
@@ -725,9 +710,9 @@ static int set_loopback_config(struct zero_dev *dev)
725 } 710 }
726 711
727 /* one endpoint just reads OUT packets */ 712 /* one endpoint just reads OUT packets */
728 } else if (strcmp (ep->name, EP_OUT_NAME) == 0) { 713 } else if (strcmp(ep->name, EP_OUT_NAME) == 0) {
729 d = ep_desc (gadget, &hs_sink_desc, &fs_sink_desc); 714 d = ep_desc(gadget, &hs_sink_desc, &fs_sink_desc);
730 result = usb_ep_enable (ep, d); 715 result = usb_ep_enable(ep, d);
731 if (result == 0) { 716 if (result == 0) {
732 ep->driver_data = dev; 717 ep->driver_data = dev;
733 dev->out_ep = ep; 718 dev->out_ep = ep;
@@ -739,7 +724,7 @@ static int set_loopback_config(struct zero_dev *dev)
739 continue; 724 continue;
740 725
741 /* stop on error */ 726 /* stop on error */
742 ERROR (dev, "can't enable %s, result %d\n", ep->name, result); 727 ERROR(dev, "can't enable %s, result %d\n", ep->name, result);
743 break; 728 break;
744 } 729 }
745 730
@@ -753,19 +738,19 @@ static int set_loopback_config(struct zero_dev *dev)
753 738
754 ep = dev->out_ep; 739 ep = dev->out_ep;
755 for (i = 0; i < qlen && result == 0; i++) { 740 for (i = 0; i < qlen && result == 0; i++) {
756 req = alloc_ep_req (ep, buflen); 741 req = alloc_ep_req(ep, buflen);
757 if (req) { 742 if (req) {
758 req->complete = loopback_complete; 743 req->complete = loopback_complete;
759 result = usb_ep_queue (ep, req, GFP_ATOMIC); 744 result = usb_ep_queue(ep, req, GFP_ATOMIC);
760 if (result) 745 if (result)
761 DBG (dev, "%s queue req --> %d\n", 746 DBG(dev, "%s queue req --> %d\n",
762 ep->name, result); 747 ep->name, result);
763 } else 748 } else
764 result = -ENOMEM; 749 result = -ENOMEM;
765 } 750 }
766 } 751 }
767 if (result == 0) 752 if (result == 0)
768 DBG (dev, "qlen %d, buflen %d\n", qlen, buflen); 753 DBG(dev, "qlen %d, buflen %d\n", qlen, buflen);
769 754
770 /* caller is responsible for cleanup on error */ 755 /* caller is responsible for cleanup on error */
771 return result; 756 return result;
@@ -773,26 +758,26 @@ static int set_loopback_config(struct zero_dev *dev)
773 758
774/*-------------------------------------------------------------------------*/ 759/*-------------------------------------------------------------------------*/
775 760
776static void zero_reset_config (struct zero_dev *dev) 761static void zero_reset_config(struct zero_dev *dev)
777{ 762{
778 if (dev->config == 0) 763 if (dev->config == 0)
779 return; 764 return;
780 765
781 DBG (dev, "reset config\n"); 766 DBG(dev, "reset config\n");
782 767
783 /* just disable endpoints, forcing completion of pending i/o. 768 /* just disable endpoints, forcing completion of pending i/o.
784 * all our completion handlers free their requests in this case. 769 * all our completion handlers free their requests in this case.
785 */ 770 */
786 if (dev->in_ep) { 771 if (dev->in_ep) {
787 usb_ep_disable (dev->in_ep); 772 usb_ep_disable(dev->in_ep);
788 dev->in_ep = NULL; 773 dev->in_ep = NULL;
789 } 774 }
790 if (dev->out_ep) { 775 if (dev->out_ep) {
791 usb_ep_disable (dev->out_ep); 776 usb_ep_disable(dev->out_ep);
792 dev->out_ep = NULL; 777 dev->out_ep = NULL;
793 } 778 }
794 dev->config = 0; 779 dev->config = 0;
795 del_timer (&dev->resume); 780 del_timer(&dev->resume);
796} 781}
797 782
798/* change our operational config. this code must agree with the code 783/* change our operational config. this code must agree with the code
@@ -813,12 +798,12 @@ static int zero_set_config(struct zero_dev *dev, unsigned number)
813 if (number == dev->config) 798 if (number == dev->config)
814 return 0; 799 return 0;
815 800
816 if (gadget_is_sa1100 (gadget) && dev->config) { 801 if (gadget_is_sa1100(gadget) && dev->config) {
817 /* tx fifo is full, but we can't clear it...*/ 802 /* tx fifo is full, but we can't clear it...*/
818 ERROR(dev, "can't change configurations\n"); 803 ERROR(dev, "can't change configurations\n");
819 return -ESPIPE; 804 return -ESPIPE;
820 } 805 }
821 zero_reset_config (dev); 806 zero_reset_config(dev);
822 807
823 switch (number) { 808 switch (number) {
824 case CONFIG_SOURCE_SINK: 809 case CONFIG_SOURCE_SINK:
@@ -837,7 +822,7 @@ static int zero_set_config(struct zero_dev *dev, unsigned number)
837 if (!result && (!dev->in_ep || !dev->out_ep)) 822 if (!result && (!dev->in_ep || !dev->out_ep))
838 result = -ENODEV; 823 result = -ENODEV;
839 if (result) 824 if (result)
840 zero_reset_config (dev); 825 zero_reset_config(dev);
841 else { 826 else {
842 char *speed; 827 char *speed;
843 828
@@ -849,7 +834,7 @@ static int zero_set_config(struct zero_dev *dev, unsigned number)
849 } 834 }
850 835
851 dev->config = number; 836 dev->config = number;
852 INFO (dev, "%s speed config #%d: %s\n", speed, number, 837 INFO(dev, "%s speed config #%d: %s\n", speed, number,
853 (number == CONFIG_SOURCE_SINK) 838 (number == CONFIG_SOURCE_SINK)
854 ? source_sink : loopback); 839 ? source_sink : loopback);
855 } 840 }
@@ -858,10 +843,10 @@ static int zero_set_config(struct zero_dev *dev, unsigned number)
858 843
859/*-------------------------------------------------------------------------*/ 844/*-------------------------------------------------------------------------*/
860 845
861static void zero_setup_complete (struct usb_ep *ep, struct usb_request *req) 846static void zero_setup_complete(struct usb_ep *ep, struct usb_request *req)
862{ 847{
863 if (req->status || req->actual != req->length) 848 if (req->status || req->actual != req->length)
864 DBG ((struct zero_dev *) ep->driver_data, 849 DBG((struct zero_dev *) ep->driver_data,
865 "setup complete --> %d, %d/%d\n", 850 "setup complete --> %d, %d/%d\n",
866 req->status, req->actual, req->length); 851 req->status, req->actual, req->length);
867} 852}
@@ -874,9 +859,9 @@ static void zero_setup_complete (struct usb_ep *ep, struct usb_request *req)
874 * the work is in config-specific setup. 859 * the work is in config-specific setup.
875 */ 860 */
876static int 861static int
877zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) 862zero_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
878{ 863{
879 struct zero_dev *dev = get_gadget_data (gadget); 864 struct zero_dev *dev = get_gadget_data(gadget);
880 struct usb_request *req = dev->req; 865 struct usb_request *req = dev->req;
881 int value = -EOPNOTSUPP; 866 int value = -EOPNOTSUPP;
882 u16 w_index = le16_to_cpu(ctrl->wIndex); 867 u16 w_index = le16_to_cpu(ctrl->wIndex);
@@ -895,14 +880,14 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
895 switch (w_value >> 8) { 880 switch (w_value >> 8) {
896 881
897 case USB_DT_DEVICE: 882 case USB_DT_DEVICE:
898 value = min (w_length, (u16) sizeof device_desc); 883 value = min(w_length, (u16) sizeof device_desc);
899 memcpy (req->buf, &device_desc, value); 884 memcpy(req->buf, &device_desc, value);
900 break; 885 break;
901 case USB_DT_DEVICE_QUALIFIER: 886 case USB_DT_DEVICE_QUALIFIER:
902 if (!gadget_is_dualspeed(gadget)) 887 if (!gadget_is_dualspeed(gadget))
903 break; 888 break;
904 value = min (w_length, (u16) sizeof dev_qualifier); 889 value = min(w_length, (u16) sizeof dev_qualifier);
905 memcpy (req->buf, &dev_qualifier, value); 890 memcpy(req->buf, &dev_qualifier, value);
906 break; 891 break;
907 892
908 case USB_DT_OTHER_SPEED_CONFIG: 893 case USB_DT_OTHER_SPEED_CONFIG:
@@ -910,11 +895,11 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
910 break; 895 break;
911 // FALLTHROUGH 896 // FALLTHROUGH
912 case USB_DT_CONFIG: 897 case USB_DT_CONFIG:
913 value = config_buf (gadget, req->buf, 898 value = config_buf(gadget, req->buf,
914 w_value >> 8, 899 w_value >> 8,
915 w_value & 0xff); 900 w_value & 0xff);
916 if (value >= 0) 901 if (value >= 0)
917 value = min (w_length, (u16) value); 902 value = min(w_length, (u16) value);
918 break; 903 break;
919 904
920 case USB_DT_STRING: 905 case USB_DT_STRING:
@@ -923,10 +908,10 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
923 * add string tables for other languages, using 908 * add string tables for other languages, using
924 * any UTF-8 characters 909 * any UTF-8 characters
925 */ 910 */
926 value = usb_gadget_get_string (&stringtab, 911 value = usb_gadget_get_string(&stringtab,
927 w_value & 0xff, req->buf); 912 w_value & 0xff, req->buf);
928 if (value >= 0) 913 if (value >= 0)
929 value = min (w_length, (u16) value); 914 value = min(w_length, (u16) value);
930 break; 915 break;
931 } 916 }
932 break; 917 break;
@@ -936,20 +921,20 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
936 if (ctrl->bRequestType != 0) 921 if (ctrl->bRequestType != 0)
937 goto unknown; 922 goto unknown;
938 if (gadget->a_hnp_support) 923 if (gadget->a_hnp_support)
939 DBG (dev, "HNP available\n"); 924 DBG(dev, "HNP available\n");
940 else if (gadget->a_alt_hnp_support) 925 else if (gadget->a_alt_hnp_support)
941 DBG (dev, "HNP needs a different root port\n"); 926 DBG(dev, "HNP needs a different root port\n");
942 else 927 else
943 VDBG (dev, "HNP inactive\n"); 928 VDBG(dev, "HNP inactive\n");
944 spin_lock (&dev->lock); 929 spin_lock(&dev->lock);
945 value = zero_set_config(dev, w_value); 930 value = zero_set_config(dev, w_value);
946 spin_unlock (&dev->lock); 931 spin_unlock(&dev->lock);
947 break; 932 break;
948 case USB_REQ_GET_CONFIGURATION: 933 case USB_REQ_GET_CONFIGURATION:
949 if (ctrl->bRequestType != USB_DIR_IN) 934 if (ctrl->bRequestType != USB_DIR_IN)
950 goto unknown; 935 goto unknown;
951 *(u8 *)req->buf = dev->config; 936 *(u8 *)req->buf = dev->config;
952 value = min (w_length, (u16) 1); 937 value = min(w_length, (u16) 1);
953 break; 938 break;
954 939
955 /* until we add altsetting support, or other interfaces, 940 /* until we add altsetting support, or other interfaces,
@@ -959,7 +944,7 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
959 case USB_REQ_SET_INTERFACE: 944 case USB_REQ_SET_INTERFACE:
960 if (ctrl->bRequestType != USB_RECIP_INTERFACE) 945 if (ctrl->bRequestType != USB_RECIP_INTERFACE)
961 goto unknown; 946 goto unknown;
962 spin_lock (&dev->lock); 947 spin_lock(&dev->lock);
963 if (dev->config && w_index == 0 && w_value == 0) { 948 if (dev->config && w_index == 0 && w_value == 0) {
964 u8 config = dev->config; 949 u8 config = dev->config;
965 950
@@ -970,11 +955,11 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
970 * if we had more than one interface we couldn't 955 * if we had more than one interface we couldn't
971 * use this "reset the config" shortcut. 956 * use this "reset the config" shortcut.
972 */ 957 */
973 zero_reset_config (dev); 958 zero_reset_config(dev);
974 zero_set_config(dev, config); 959 zero_set_config(dev, config);
975 value = 0; 960 value = 0;
976 } 961 }
977 spin_unlock (&dev->lock); 962 spin_unlock(&dev->lock);
978 break; 963 break;
979 case USB_REQ_GET_INTERFACE: 964 case USB_REQ_GET_INTERFACE:
980 if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) 965 if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE))
@@ -986,7 +971,7 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
986 break; 971 break;
987 } 972 }
988 *(u8 *)req->buf = 0; 973 *(u8 *)req->buf = 0;
989 value = min (w_length, (u16) 1); 974 value = min(w_length, (u16) 1);
990 break; 975 break;
991 976
992 /* 977 /*
@@ -1018,7 +1003,7 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
1018 1003
1019 default: 1004 default:
1020unknown: 1005unknown:
1021 VDBG (dev, 1006 VDBG(dev,
1022 "unknown control req%02x.%02x v%04x i%04x l%d\n", 1007 "unknown control req%02x.%02x v%04x i%04x l%d\n",
1023 ctrl->bRequestType, ctrl->bRequest, 1008 ctrl->bRequestType, ctrl->bRequest,
1024 w_value, w_index, w_length); 1009 w_value, w_index, w_length);
@@ -1028,11 +1013,11 @@ unknown:
1028 if (value >= 0) { 1013 if (value >= 0) {
1029 req->length = value; 1014 req->length = value;
1030 req->zero = value < w_length; 1015 req->zero = value < w_length;
1031 value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC); 1016 value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
1032 if (value < 0) { 1017 if (value < 0) {
1033 DBG (dev, "ep_queue --> %d\n", value); 1018 DBG(dev, "ep_queue --> %d\n", value);
1034 req->status = 0; 1019 req->status = 0;
1035 zero_setup_complete (gadget->ep0, req); 1020 zero_setup_complete(gadget->ep0, req);
1036 } 1021 }
1037 } 1022 }
1038 1023
@@ -1040,28 +1025,26 @@ unknown:
1040 return value; 1025 return value;
1041} 1026}
1042 1027
1043static void 1028static void zero_disconnect(struct usb_gadget *gadget)
1044zero_disconnect (struct usb_gadget *gadget)
1045{ 1029{
1046 struct zero_dev *dev = get_gadget_data (gadget); 1030 struct zero_dev *dev = get_gadget_data(gadget);
1047 unsigned long flags; 1031 unsigned long flags;
1048 1032
1049 spin_lock_irqsave (&dev->lock, flags); 1033 spin_lock_irqsave(&dev->lock, flags);
1050 zero_reset_config (dev); 1034 zero_reset_config(dev);
1051 1035
1052 /* a more significant application might have some non-usb 1036 /* a more significant application might have some non-usb
1053 * activities to quiesce here, saving resources like power 1037 * activities to quiesce here, saving resources like power
1054 * or pushing the notification up a network stack. 1038 * or pushing the notification up a network stack.
1055 */ 1039 */
1056 spin_unlock_irqrestore (&dev->lock, flags); 1040 spin_unlock_irqrestore(&dev->lock, flags);
1057 1041
1058 /* next we may get setup() calls to enumerate new connections; 1042 /* next we may get setup() calls to enumerate new connections;
1059 * or an unbind() during shutdown (including removing module). 1043 * or an unbind() during shutdown (including removing module).
1060 */ 1044 */
1061} 1045}
1062 1046
1063static void 1047static void zero_autoresume(unsigned long _dev)
1064zero_autoresume (unsigned long _dev)
1065{ 1048{
1066 struct zero_dev *dev = (struct zero_dev *) _dev; 1049 struct zero_dev *dev = (struct zero_dev *) _dev;
1067 int status; 1050 int status;
@@ -1070,32 +1053,30 @@ zero_autoresume (unsigned long _dev)
1070 * more significant than just a timer firing... 1053 * more significant than just a timer firing...
1071 */ 1054 */
1072 if (dev->gadget->speed != USB_SPEED_UNKNOWN) { 1055 if (dev->gadget->speed != USB_SPEED_UNKNOWN) {
1073 status = usb_gadget_wakeup (dev->gadget); 1056 status = usb_gadget_wakeup(dev->gadget);
1074 DBG (dev, "wakeup --> %d\n", status); 1057 DBG(dev, "wakeup --> %d\n", status);
1075 } 1058 }
1076} 1059}
1077 1060
1078/*-------------------------------------------------------------------------*/ 1061/*-------------------------------------------------------------------------*/
1079 1062
1080static void /* __init_or_exit */ 1063static void zero_unbind(struct usb_gadget *gadget)
1081zero_unbind (struct usb_gadget *gadget)
1082{ 1064{
1083 struct zero_dev *dev = get_gadget_data (gadget); 1065 struct zero_dev *dev = get_gadget_data(gadget);
1084 1066
1085 DBG (dev, "unbind\n"); 1067 DBG(dev, "unbind\n");
1086 1068
1087 /* we've already been disconnected ... no i/o is active */ 1069 /* we've already been disconnected ... no i/o is active */
1088 if (dev->req) { 1070 if (dev->req) {
1089 dev->req->length = USB_BUFSIZ; 1071 dev->req->length = USB_BUFSIZ;
1090 free_ep_req (gadget->ep0, dev->req); 1072 free_ep_req(gadget->ep0, dev->req);
1091 } 1073 }
1092 del_timer_sync (&dev->resume); 1074 del_timer_sync(&dev->resume);
1093 kfree (dev); 1075 kfree(dev);
1094 set_gadget_data (gadget, NULL); 1076 set_gadget_data(gadget, NULL);
1095} 1077}
1096 1078
1097static int __init 1079static int __init zero_bind(struct usb_gadget *gadget)
1098zero_bind (struct usb_gadget *gadget)
1099{ 1080{
1100 struct zero_dev *dev; 1081 struct zero_dev *dev;
1101 struct usb_ep *ep; 1082 struct usb_ep *ep;
@@ -1111,8 +1092,8 @@ zero_bind (struct usb_gadget *gadget)
1111 * autoconfigure on any sane usb controller driver, 1092 * autoconfigure on any sane usb controller driver,
1112 * but there may also be important quirks to address. 1093 * but there may also be important quirks to address.
1113 */ 1094 */
1114 usb_ep_autoconfig_reset (gadget); 1095 usb_ep_autoconfig_reset(gadget);
1115 ep = usb_ep_autoconfig (gadget, &fs_source_desc); 1096 ep = usb_ep_autoconfig(gadget, &fs_source_desc);
1116 if (!ep) { 1097 if (!ep) {
1117autoconf_fail: 1098autoconf_fail:
1118 pr_err("%s: can't autoconfigure on %s\n", 1099 pr_err("%s: can't autoconfigure on %s\n",
@@ -1122,15 +1103,15 @@ autoconf_fail:
1122 EP_IN_NAME = ep->name; 1103 EP_IN_NAME = ep->name;
1123 ep->driver_data = ep; /* claim */ 1104 ep->driver_data = ep; /* claim */
1124 1105
1125 ep = usb_ep_autoconfig (gadget, &fs_sink_desc); 1106 ep = usb_ep_autoconfig(gadget, &fs_sink_desc);
1126 if (!ep) 1107 if (!ep)
1127 goto autoconf_fail; 1108 goto autoconf_fail;
1128 EP_OUT_NAME = ep->name; 1109 EP_OUT_NAME = ep->name;
1129 ep->driver_data = ep; /* claim */ 1110 ep->driver_data = ep; /* claim */
1130 1111
1131 gcnum = usb_gadget_controller_number (gadget); 1112 gcnum = usb_gadget_controller_number(gadget);
1132 if (gcnum >= 0) 1113 if (gcnum >= 0)
1133 device_desc.bcdDevice = cpu_to_le16 (0x0200 + gcnum); 1114 device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
1134 else { 1115 else {
1135 /* gadget zero is so simple (for now, no altsettings) that 1116 /* gadget zero is so simple (for now, no altsettings) that
1136 * it SHOULD NOT have problems with bulk-capable hardware. 1117 * it SHOULD NOT have problems with bulk-capable hardware.
@@ -1141,7 +1122,7 @@ autoconf_fail:
1141 */ 1122 */
1142 pr_warning("%s: controller '%s' not recognized\n", 1123 pr_warning("%s: controller '%s' not recognized\n",
1143 shortname, gadget->name); 1124 shortname, gadget->name);
1144 device_desc.bcdDevice = __constant_cpu_to_le16 (0x9999); 1125 device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
1145 } 1126 }
1146 1127
1147 1128
@@ -1149,12 +1130,16 @@ autoconf_fail:
1149 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1130 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1150 if (!dev) 1131 if (!dev)
1151 return -ENOMEM; 1132 return -ENOMEM;
1152 spin_lock_init (&dev->lock); 1133 spin_lock_init(&dev->lock);
1153 dev->gadget = gadget; 1134 dev->gadget = gadget;
1154 set_gadget_data (gadget, dev); 1135 set_gadget_data(gadget, dev);
1136
1137 init_timer(&dev->resume);
1138 dev->resume.function = zero_autoresume;
1139 dev->resume.data = (unsigned long) dev;
1155 1140
1156 /* preallocate control response and buffer */ 1141 /* preallocate control response and buffer */
1157 dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL); 1142 dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
1158 if (!dev->req) 1143 if (!dev->req)
1159 goto enomem; 1144 goto enomem;
1160 dev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); 1145 dev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL);
@@ -1182,11 +1167,8 @@ autoconf_fail:
1182 loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; 1167 loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
1183 } 1168 }
1184 1169
1185 usb_gadget_set_selfpowered (gadget); 1170 usb_gadget_set_selfpowered(gadget);
1186 1171
1187 init_timer (&dev->resume);
1188 dev->resume.function = zero_autoresume;
1189 dev->resume.data = (unsigned long) dev;
1190 if (autoresume) { 1172 if (autoresume) {
1191 source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; 1173 source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
1192 loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; 1174 loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
@@ -1194,45 +1176,43 @@ autoconf_fail:
1194 1176
1195 gadget->ep0->driver_data = dev; 1177 gadget->ep0->driver_data = dev;
1196 1178
1197 INFO (dev, "%s, version: " DRIVER_VERSION "\n", longname); 1179 INFO(dev, "%s, version: " DRIVER_VERSION "\n", longname);
1198 INFO (dev, "using %s, OUT %s IN %s\n", gadget->name, 1180 INFO(dev, "using %s, OUT %s IN %s\n", gadget->name,
1199 EP_OUT_NAME, EP_IN_NAME); 1181 EP_OUT_NAME, EP_IN_NAME);
1200 1182
1201 snprintf (manufacturer, sizeof manufacturer, "%s %s with %s", 1183 snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
1202 init_utsname()->sysname, init_utsname()->release, 1184 init_utsname()->sysname, init_utsname()->release,
1203 gadget->name); 1185 gadget->name);
1204 1186
1205 return 0; 1187 return 0;
1206 1188
1207enomem: 1189enomem:
1208 zero_unbind (gadget); 1190 zero_unbind(gadget);
1209 return -ENOMEM; 1191 return -ENOMEM;
1210} 1192}
1211 1193
1212/*-------------------------------------------------------------------------*/ 1194/*-------------------------------------------------------------------------*/
1213 1195
1214static void 1196static void zero_suspend(struct usb_gadget *gadget)
1215zero_suspend (struct usb_gadget *gadget)
1216{ 1197{
1217 struct zero_dev *dev = get_gadget_data (gadget); 1198 struct zero_dev *dev = get_gadget_data(gadget);
1218 1199
1219 if (gadget->speed == USB_SPEED_UNKNOWN) 1200 if (gadget->speed == USB_SPEED_UNKNOWN)
1220 return; 1201 return;
1221 1202
1222 if (autoresume) { 1203 if (autoresume) {
1223 mod_timer (&dev->resume, jiffies + (HZ * autoresume)); 1204 mod_timer(&dev->resume, jiffies + (HZ * autoresume));
1224 DBG (dev, "suspend, wakeup in %d seconds\n", autoresume); 1205 DBG(dev, "suspend, wakeup in %d seconds\n", autoresume);
1225 } else 1206 } else
1226 DBG (dev, "suspend\n"); 1207 DBG(dev, "suspend\n");
1227} 1208}
1228 1209
1229static void 1210static void zero_resume(struct usb_gadget *gadget)
1230zero_resume (struct usb_gadget *gadget)
1231{ 1211{
1232 struct zero_dev *dev = get_gadget_data (gadget); 1212 struct zero_dev *dev = get_gadget_data(gadget);
1233 1213
1234 DBG (dev, "resume\n"); 1214 DBG(dev, "resume\n");
1235 del_timer (&dev->resume); 1215 del_timer(&dev->resume);
1236} 1216}
1237 1217
1238 1218
@@ -1264,15 +1244,15 @@ MODULE_AUTHOR("David Brownell");
1264MODULE_LICENSE("GPL"); 1244MODULE_LICENSE("GPL");
1265 1245
1266 1246
1267static int __init init (void) 1247static int __init init(void)
1268{ 1248{
1269 return usb_gadget_register_driver (&zero_driver); 1249 return usb_gadget_register_driver(&zero_driver);
1270} 1250}
1271module_init (init); 1251module_init(init);
1272 1252
1273static void __exit cleanup (void) 1253static void __exit cleanup(void)
1274{ 1254{
1275 usb_gadget_unregister_driver (&zero_driver); 1255 usb_gadget_unregister_driver(&zero_driver);
1276} 1256}
1277module_exit (cleanup); 1257module_exit(cleanup);
1278 1258
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 0b87480dd713..33b467a8352d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -4,6 +4,19 @@
4comment "USB Host Controller Drivers" 4comment "USB Host Controller Drivers"
5 depends on USB 5 depends on USB
6 6
7config USB_C67X00_HCD
8 tristate "Cypress C67x00 HCD support"
9 depends on USB
10 help
11 The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
12 host/peripheral/OTG USB controllers.
13
14 Enable this option to support this chip in host controller mode.
15 If unsure, say N.
16
17 To compile this driver as a module, choose M here: the
18 module will be called c67x00.
19
7config USB_EHCI_HCD 20config USB_EHCI_HCD
8 tristate "EHCI HCD (USB 2.0) support" 21 tristate "EHCI HCD (USB 2.0) support"
9 depends on USB && USB_ARCH_HAS_EHCI 22 depends on USB && USB_ARCH_HAS_EHCI
@@ -95,6 +108,32 @@ config USB_ISP116X_HCD
95 To compile this driver as a module, choose M here: the 108 To compile this driver as a module, choose M here: the
96 module will be called isp116x-hcd. 109 module will be called isp116x-hcd.
97 110
111config USB_ISP1760_HCD
112 tristate "ISP 1760 HCD support"
113 depends on USB && EXPERIMENTAL
114 ---help---
115 The ISP1760 chip is a USB 2.0 host controller.
116
117 This driver does not support isochronous transfers or OTG.
118
119 To compile this driver as a module, choose M here: the
120 module will be called isp1760-hcd.
121
122config USB_ISP1760_PCI
123 bool "Support for the PCI bus"
124 depends on USB_ISP1760_HCD && PCI
125 ---help---
126 Enables support for the device present on the PCI bus.
127 This should only be required if you happen to have the eval kit from
128 NXP and you are going to test it.
129
130config USB_ISP1760_OF
131 bool "Support for the OF platform bus"
132 depends on USB_ISP1760_HCD && OF
133 ---help---
134 Enables support for the device present on the PowerPC
135 OpenFirmware platform bus.
136
98config USB_OHCI_HCD 137config USB_OHCI_HCD
99 tristate "OHCI HCD support" 138 tristate "OHCI HCD support"
100 depends on USB && USB_ARCH_HAS_OHCI 139 depends on USB && USB_ARCH_HAS_OHCI
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index bb8e9d44f371..f1edda2dcfde 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -6,6 +6,8 @@ ifeq ($(CONFIG_USB_DEBUG),y)
6 EXTRA_CFLAGS += -DDEBUG 6 EXTRA_CFLAGS += -DDEBUG
7endif 7endif
8 8
9isp1760-objs := isp1760-hcd.o isp1760-if.o
10
9obj-$(CONFIG_PCI) += pci-quirks.o 11obj-$(CONFIG_PCI) += pci-quirks.o
10 12
11obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o 13obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
@@ -16,4 +18,4 @@ obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
16obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o 18obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
17obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o 19obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o
18obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o 20obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o
19 21obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
new file mode 100644
index 000000000000..4ba96c1e060c
--- /dev/null
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -0,0 +1,2231 @@
1/*
2 * Driver for the NXP ISP1760 chip
3 *
4 * However, the code might contain some bugs. What doesn't work for sure is:
5 * - ISO
6 * - OTG
7 e The interrupt line is configured as active low, level.
8 *
9 * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
10 *
11 */
12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/slab.h>
15#include <linux/list.h>
16#include <linux/usb.h>
17#include <linux/debugfs.h>
18#include <linux/uaccess.h>
19#include <linux/io.h>
20#include <asm/unaligned.h>
21
22#include "../core/hcd.h"
23#include "isp1760-hcd.h"
24
25static struct kmem_cache *qtd_cachep;
26static struct kmem_cache *qh_cachep;
27
28struct isp1760_hcd {
29 u32 hcs_params;
30 spinlock_t lock;
31 struct inter_packet_info atl_ints[32];
32 struct inter_packet_info int_ints[32];
33 struct memory_chunk memory_pool[BLOCKS];
34
35 /* periodic schedule support */
36#define DEFAULT_I_TDPS 1024
37 unsigned periodic_size;
38 unsigned i_thresh;
39 unsigned long reset_done;
40 unsigned long next_statechange;
41};
42
43static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd)
44{
45 return (struct isp1760_hcd *) (hcd->hcd_priv);
46}
47static inline struct usb_hcd *priv_to_hcd(struct isp1760_hcd *priv)
48{
49 return container_of((void *) priv, struct usb_hcd, hcd_priv);
50}
51
52/* Section 2.2 Host Controller Capability Registers */
53#define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */
54#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */
55#define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */
56#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */
57#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */
58#define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */
59#define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */
60
61/* Section 2.3 Host Controller Operational Registers */
62#define CMD_LRESET (1<<7) /* partial reset (no ports, etc) */
63#define CMD_RESET (1<<1) /* reset HC not bus */
64#define CMD_RUN (1<<0) /* start/stop HC */
65#define STS_PCD (1<<2) /* port change detect */
66#define FLAG_CF (1<<0) /* true: we'll support "high speed" */
67
68#define PORT_OWNER (1<<13) /* true: companion hc owns this port */
69#define PORT_POWER (1<<12) /* true: has power (see PPC) */
70#define PORT_USB11(x) (((x) & (3 << 10)) == (1 << 10)) /* USB 1.1 device */
71#define PORT_RESET (1<<8) /* reset port */
72#define PORT_SUSPEND (1<<7) /* suspend port */
73#define PORT_RESUME (1<<6) /* resume it */
74#define PORT_PE (1<<2) /* port enable */
75#define PORT_CSC (1<<1) /* connect status change */
76#define PORT_CONNECT (1<<0) /* device connected */
77#define PORT_RWC_BITS (PORT_CSC)
78
79struct isp1760_qtd {
80 struct isp1760_qtd *hw_next;
81 u8 packet_type;
82 u8 toggle;
83
84 void *data_buffer;
85 /* the rest is HCD-private */
86 struct list_head qtd_list;
87 struct urb *urb;
88 size_t length;
89
90 /* isp special*/
91 u32 status;
92#define URB_COMPLETE_NOTIFY (1 << 0)
93#define URB_ENQUEUED (1 << 1)
94#define URB_TYPE_ATL (1 << 2)
95#define URB_TYPE_INT (1 << 3)
96};
97
98struct isp1760_qh {
99 /* first part defined by EHCI spec */
100 struct list_head qtd_list;
101 struct isp1760_hcd *priv;
102
103 /* periodic schedule info */
104 unsigned short period; /* polling interval */
105 struct usb_device *dev;
106
107 u32 toggle;
108 u32 ping;
109};
110
111#define ehci_port_speed(priv, portsc) (1 << USB_PORT_FEAT_HIGHSPEED)
112
113static unsigned int isp1760_readl(__u32 __iomem *regs)
114{
115 return readl(regs);
116}
117
118static void isp1760_writel(const unsigned int val, __u32 __iomem *regs)
119{
120 writel(val, regs);
121}
122
123/*
124 * The next two copy via MMIO data to/from the device. memcpy_{to|from}io()
125 * doesn't quite work because some people have to enforce 32-bit access
126 */
127static void priv_read_copy(struct isp1760_hcd *priv, u32 *src,
128 __u32 __iomem *dst, u32 offset, u32 len)
129{
130 struct usb_hcd *hcd = priv_to_hcd(priv);
131 u32 val;
132 u8 *buff8;
133
134 if (!src) {
135 printk(KERN_ERR "ERROR: buffer: %p len: %d\n", src, len);
136 return;
137 }
138 isp1760_writel(offset, hcd->regs + HC_MEMORY_REG);
139 /* XXX
140 * 90nsec delay, the spec says something how this could be avoided.
141 */
142 mdelay(1);
143
144 while (len >= 4) {
145 *src = __raw_readl(dst);
146 len -= 4;
147 src++;
148 dst++;
149 }
150
151 if (!len)
152 return;
153
154 /* in case we have 3, 2 or 1 by left. The dst buffer may not be fully
155 * allocated.
156 */
157 val = isp1760_readl(dst);
158
159 buff8 = (u8 *)src;
160 while (len) {
161
162 *buff8 = val;
163 val >>= 8;
164 len--;
165 buff8++;
166 }
167}
168
169static void priv_write_copy(const struct isp1760_hcd *priv, const u32 *src,
170 __u32 __iomem *dst, u32 len)
171{
172 while (len >= 4) {
173 __raw_writel(*src, dst);
174 len -= 4;
175 src++;
176 dst++;
177 }
178
179 if (!len)
180 return;
181 /* in case we have 3, 2 or 1 by left. The buffer is allocated and the
182 * extra bytes should not be read by the HW
183 */
184
185 __raw_writel(*src, dst);
186}
187
188/* memory management of the 60kb on the chip from 0x1000 to 0xffff */
189static void init_memory(struct isp1760_hcd *priv)
190{
191 int i;
192 u32 payload;
193
194 payload = 0x1000;
195 for (i = 0; i < BLOCK_1_NUM; i++) {
196 priv->memory_pool[i].start = payload;
197 priv->memory_pool[i].size = BLOCK_1_SIZE;
198 priv->memory_pool[i].free = 1;
199 payload += priv->memory_pool[i].size;
200 }
201
202
203 for (i = BLOCK_1_NUM; i < BLOCK_1_NUM + BLOCK_2_NUM; i++) {
204 priv->memory_pool[i].start = payload;
205 priv->memory_pool[i].size = BLOCK_2_SIZE;
206 priv->memory_pool[i].free = 1;
207 payload += priv->memory_pool[i].size;
208 }
209
210
211 for (i = BLOCK_1_NUM + BLOCK_2_NUM; i < BLOCKS; i++) {
212 priv->memory_pool[i].start = payload;
213 priv->memory_pool[i].size = BLOCK_3_SIZE;
214 priv->memory_pool[i].free = 1;
215 payload += priv->memory_pool[i].size;
216 }
217
218 BUG_ON(payload - priv->memory_pool[i - 1].size > PAYLOAD_SIZE);
219}
220
221static u32 alloc_mem(struct isp1760_hcd *priv, u32 size)
222{
223 int i;
224
225 if (!size)
226 return ISP1760_NULL_POINTER;
227
228 for (i = 0; i < BLOCKS; i++) {
229 if (priv->memory_pool[i].size >= size &&
230 priv->memory_pool[i].free) {
231
232 priv->memory_pool[i].free = 0;
233 return priv->memory_pool[i].start;
234 }
235 }
236
237 printk(KERN_ERR "ISP1760 MEM: can not allocate %d bytes of memory\n",
238 size);
239 printk(KERN_ERR "Current memory map:\n");
240 for (i = 0; i < BLOCKS; i++) {
241 printk(KERN_ERR "Pool %2d size %4d status: %d\n",
242 i, priv->memory_pool[i].size,
243 priv->memory_pool[i].free);
244 }
245 /* XXX maybe -ENOMEM could be possible */
246 BUG();
247 return 0;
248}
249
250static void free_mem(struct isp1760_hcd *priv, u32 mem)
251{
252 int i;
253
254 if (mem == ISP1760_NULL_POINTER)
255 return;
256
257 for (i = 0; i < BLOCKS; i++) {
258 if (priv->memory_pool[i].start == mem) {
259
260 BUG_ON(priv->memory_pool[i].free);
261
262 priv->memory_pool[i].free = 1;
263 return ;
264 }
265 }
266
267 printk(KERN_ERR "Trying to free not-here-allocated memory :%08x\n",
268 mem);
269 BUG();
270}
271
272static void isp1760_init_regs(struct usb_hcd *hcd)
273{
274 isp1760_writel(0, hcd->regs + HC_BUFFER_STATUS_REG);
275 isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
276 HC_ATL_PTD_SKIPMAP_REG);
277 isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
278 HC_INT_PTD_SKIPMAP_REG);
279 isp1760_writel(NO_TRANSFER_ACTIVE, hcd->regs +
280 HC_ISO_PTD_SKIPMAP_REG);
281
282 isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
283 HC_ATL_PTD_DONEMAP_REG);
284 isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
285 HC_INT_PTD_DONEMAP_REG);
286 isp1760_writel(~NO_TRANSFER_ACTIVE, hcd->regs +
287 HC_ISO_PTD_DONEMAP_REG);
288}
289
290static int handshake(struct isp1760_hcd *priv, void __iomem *ptr,
291 u32 mask, u32 done, int usec)
292{
293 u32 result;
294
295 do {
296 result = isp1760_readl(ptr);
297 if (result == ~0)
298 return -ENODEV;
299 result &= mask;
300 if (result == done)
301 return 0;
302 udelay(1);
303 usec--;
304 } while (usec > 0);
305 return -ETIMEDOUT;
306}
307
308/* reset a non-running (STS_HALT == 1) controller */
309static int ehci_reset(struct isp1760_hcd *priv)
310{
311 int retval;
312 struct usb_hcd *hcd = priv_to_hcd(priv);
313 u32 command = isp1760_readl(hcd->regs + HC_USBCMD);
314
315 command |= CMD_RESET;
316 isp1760_writel(command, hcd->regs + HC_USBCMD);
317 hcd->state = HC_STATE_HALT;
318 priv->next_statechange = jiffies;
319 retval = handshake(priv, hcd->regs + HC_USBCMD,
320 CMD_RESET, 0, 250 * 1000);
321 return retval;
322}
323
324static void qh_destroy(struct isp1760_qh *qh)
325{
326 BUG_ON(!list_empty(&qh->qtd_list));
327 kmem_cache_free(qh_cachep, qh);
328}
329
330static struct isp1760_qh *isp1760_qh_alloc(struct isp1760_hcd *priv,
331 gfp_t flags)
332{
333 struct isp1760_qh *qh;
334
335 qh = kmem_cache_zalloc(qh_cachep, flags);
336 if (!qh)
337 return qh;
338
339 INIT_LIST_HEAD(&qh->qtd_list);
340 qh->priv = priv;
341 return qh;
342}
343
344/* magic numbers that can affect system performance */
345#define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
346#define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
347#define EHCI_TUNE_RL_TT 0
348#define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
349#define EHCI_TUNE_MULT_TT 1
350#define EHCI_TUNE_FLS 2 /* (small) 256 frame schedule */
351
352/* one-time init, only for memory state */
353static int priv_init(struct usb_hcd *hcd)
354{
355 struct isp1760_hcd *priv = hcd_to_priv(hcd);
356 u32 hcc_params;
357
358 spin_lock_init(&priv->lock);
359
360 /*
361 * hw default: 1K periodic list heads, one per frame.
362 * periodic_size can shrink by USBCMD update if hcc_params allows.
363 */
364 priv->periodic_size = DEFAULT_I_TDPS;
365
366 /* controllers may cache some of the periodic schedule ... */
367 hcc_params = isp1760_readl(hcd->regs + HC_HCCPARAMS);
368 /* full frame cache */
369 if (HCC_ISOC_CACHE(hcc_params))
370 priv->i_thresh = 8;
371 else /* N microframes cached */
372 priv->i_thresh = 2 + HCC_ISOC_THRES(hcc_params);
373
374 return 0;
375}
376
377static int isp1760_hc_setup(struct usb_hcd *hcd)
378{
379 struct isp1760_hcd *priv = hcd_to_priv(hcd);
380 int result;
381 u32 scratch;
382
383 isp1760_writel(0xdeadbabe, hcd->regs + HC_SCRATCH_REG);
384 scratch = isp1760_readl(hcd->regs + HC_SCRATCH_REG);
385 if (scratch != 0xdeadbabe) {
386 printk(KERN_ERR "ISP1760: Scratch test failed.\n");
387 return -ENODEV;
388 }
389
390 /* pre reset */
391 isp1760_init_regs(hcd);
392
393 /* reset */
394 isp1760_writel(SW_RESET_RESET_ALL, hcd->regs + HC_RESET_REG);
395 mdelay(100);
396
397 isp1760_writel(SW_RESET_RESET_HC, hcd->regs + HC_RESET_REG);
398 mdelay(100);
399
400 result = ehci_reset(priv);
401 if (result)
402 return result;
403
404 /* Step 11 passed */
405
406 isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG);
407 isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE);
408
409 /* ATL reset */
410 scratch = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL);
411 isp1760_writel(scratch | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL);
412 mdelay(10);
413 isp1760_writel(scratch, hcd->regs + HC_HW_MODE_CTRL);
414
415 isp1760_writel(PORT1_POWER | PORT1_INIT2, hcd->regs + HC_PORT1_CTRL);
416 mdelay(10);
417
418 priv->hcs_params = isp1760_readl(hcd->regs + HC_HCSPARAMS);
419
420 return priv_init(hcd);
421}
422
423static void isp1760_init_maps(struct usb_hcd *hcd)
424{
425 /*set last maps, for iso its only 1, else 32 tds bitmap*/
426 isp1760_writel(0x80000000, hcd->regs + HC_ATL_PTD_LASTPTD_REG);
427 isp1760_writel(0x80000000, hcd->regs + HC_INT_PTD_LASTPTD_REG);
428 isp1760_writel(0x00000001, hcd->regs + HC_ISO_PTD_LASTPTD_REG);
429}
430
431static void isp1760_enable_interrupts(struct usb_hcd *hcd)
432{
433 isp1760_writel(0, hcd->regs + HC_ATL_IRQ_MASK_AND_REG);
434 isp1760_writel(0, hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
435 isp1760_writel(0, hcd->regs + HC_INT_IRQ_MASK_AND_REG);
436 isp1760_writel(0, hcd->regs + HC_INT_IRQ_MASK_OR_REG);
437 isp1760_writel(0, hcd->regs + HC_ISO_IRQ_MASK_AND_REG);
438 isp1760_writel(0xffffffff, hcd->regs + HC_ISO_IRQ_MASK_OR_REG);
439 /* step 23 passed */
440}
441
442static int isp1760_run(struct usb_hcd *hcd)
443{
444 struct isp1760_hcd *priv = hcd_to_priv(hcd);
445 int retval;
446 u32 temp;
447 u32 command;
448 u32 chipid;
449
450 hcd->uses_new_polling = 1;
451 hcd->poll_rh = 0;
452
453 hcd->state = HC_STATE_RUNNING;
454 isp1760_enable_interrupts(hcd);
455 temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL);
456 temp |= FINAL_HW_CONFIG;
457 isp1760_writel(temp, hcd->regs + HC_HW_MODE_CTRL);
458
459 command = isp1760_readl(hcd->regs + HC_USBCMD);
460 command &= ~(CMD_LRESET|CMD_RESET);
461 command |= CMD_RUN;
462 isp1760_writel(command, hcd->regs + HC_USBCMD);
463
464 retval = handshake(priv, hcd->regs + HC_USBCMD, CMD_RUN, CMD_RUN,
465 250 * 1000);
466 if (retval)
467 return retval;
468
469 /*
470 * XXX
471 * Spec says to write FLAG_CF as last config action, priv code grabs
472 * the semaphore while doing so.
473 */
474 down_write(&ehci_cf_port_reset_rwsem);
475 isp1760_writel(FLAG_CF, hcd->regs + HC_CONFIGFLAG);
476
477 retval = handshake(priv, hcd->regs + HC_CONFIGFLAG, FLAG_CF, FLAG_CF,
478 250 * 1000);
479 up_write(&ehci_cf_port_reset_rwsem);
480 if (retval)
481 return retval;
482
483 chipid = isp1760_readl(hcd->regs + HC_CHIP_ID_REG);
484 isp1760_info(priv, "USB ISP %04x HW rev. %d started\n", chipid & 0xffff,
485 chipid >> 16);
486
487 /* PTD Register Init Part 2, Step 28 */
488 /* enable INTs */
489 isp1760_init_maps(hcd);
490
491 /* GRR this is run-once init(), being done every time the HC starts.
492 * So long as they're part of class devices, we can't do it init()
493 * since the class device isn't created that early.
494 */
495 return 0;
496}
497
498static u32 base_to_chip(u32 base)
499{
500 return ((base - 0x400) >> 3);
501}
502
503static void transform_into_atl(struct isp1760_hcd *priv, struct isp1760_qh *qh,
504 struct isp1760_qtd *qtd, struct urb *urb,
505 u32 payload, struct ptd *ptd)
506{
507 u32 dw0;
508 u32 dw1;
509 u32 dw2;
510 u32 dw3;
511 u32 maxpacket;
512 u32 multi;
513 u32 pid_code;
514 u32 rl = RL_COUNTER;
515 u32 nak = NAK_COUNTER;
516
517 /* according to 3.6.2, max packet len can not be > 0x400 */
518 maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
519 multi = 1 + ((maxpacket >> 11) & 0x3);
520 maxpacket &= 0x7ff;
521
522 /* DW0 */
523 dw0 = PTD_VALID;
524 dw0 |= PTD_LENGTH(qtd->length);
525 dw0 |= PTD_MAXPACKET(maxpacket);
526 dw0 |= PTD_ENDPOINT(usb_pipeendpoint(urb->pipe));
527 dw1 = usb_pipeendpoint(urb->pipe) >> 1;
528
529 /* DW1 */
530 dw1 |= PTD_DEVICE_ADDR(usb_pipedevice(urb->pipe));
531
532 pid_code = qtd->packet_type;
533 dw1 |= PTD_PID_TOKEN(pid_code);
534
535 if (usb_pipebulk(urb->pipe))
536 dw1 |= PTD_TRANS_BULK;
537 else if (usb_pipeint(urb->pipe))
538 dw1 |= PTD_TRANS_INT;
539
540 if (urb->dev->speed != USB_SPEED_HIGH) {
541 /* split transaction */
542
543 dw1 |= PTD_TRANS_SPLIT;
544 if (urb->dev->speed == USB_SPEED_LOW)
545 dw1 |= PTD_SE_USB_LOSPEED;
546
547 dw1 |= PTD_PORT_NUM(urb->dev->ttport);
548 dw1 |= PTD_HUB_NUM(urb->dev->tt->hub->devnum);
549
550 /* SE bit for Split INT transfers */
551 if (usb_pipeint(urb->pipe) &&
552 (urb->dev->speed == USB_SPEED_LOW))
553 dw1 |= 2 << 16;
554
555 dw3 = 0;
556 rl = 0;
557 nak = 0;
558 } else {
559 dw0 |= PTD_MULTI(multi);
560 if (usb_pipecontrol(urb->pipe) || usb_pipebulk(urb->pipe))
561 dw3 = qh->ping;
562 else
563 dw3 = 0;
564 }
565 /* DW2 */
566 dw2 = 0;
567 dw2 |= PTD_DATA_START_ADDR(base_to_chip(payload));
568 dw2 |= PTD_RL_CNT(rl);
569 dw3 |= PTD_NAC_CNT(nak);
570
571 /* DW3 */
572 if (usb_pipecontrol(urb->pipe))
573 dw3 |= PTD_DATA_TOGGLE(qtd->toggle);
574 else
575 dw3 |= qh->toggle;
576
577
578 dw3 |= PTD_ACTIVE;
579 /* Cerr */
580 dw3 |= PTD_CERR(ERR_COUNTER);
581
582 memset(ptd, 0, sizeof(*ptd));
583
584 ptd->dw0 = cpu_to_le32(dw0);
585 ptd->dw1 = cpu_to_le32(dw1);
586 ptd->dw2 = cpu_to_le32(dw2);
587 ptd->dw3 = cpu_to_le32(dw3);
588}
589
590static void transform_add_int(struct isp1760_hcd *priv, struct isp1760_qh *qh,
591 struct isp1760_qtd *qtd, struct urb *urb,
592 u32 payload, struct ptd *ptd)
593{
594 u32 maxpacket;
595 u32 multi;
596 u32 numberofusofs;
597 u32 i;
598 u32 usofmask, usof;
599 u32 period;
600
601 maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
602 multi = 1 + ((maxpacket >> 11) & 0x3);
603 maxpacket &= 0x7ff;
604 /* length of the data per uframe */
605 maxpacket = multi * maxpacket;
606
607 numberofusofs = urb->transfer_buffer_length / maxpacket;
608 if (urb->transfer_buffer_length % maxpacket)
609 numberofusofs += 1;
610
611 usofmask = 1;
612 usof = 0;
613 for (i = 0; i < numberofusofs; i++) {
614 usof |= usofmask;
615 usofmask <<= 1;
616 }
617
618 if (urb->dev->speed != USB_SPEED_HIGH) {
619 /* split */
620 ptd->dw5 = __constant_cpu_to_le32(0x1c);
621
622 if (qh->period >= 32)
623 period = qh->period / 2;
624 else
625 period = qh->period;
626
627 } else {
628
629 if (qh->period >= 8)
630 period = qh->period/8;
631 else
632 period = qh->period;
633
634 if (period >= 32)
635 period = 16;
636
637 if (qh->period >= 8) {
638 /* millisecond period */
639 period = (period << 3);
640 } else {
641 /* usof based tranmsfers */
642 /* minimum 4 usofs */
643 usof = 0x11;
644 }
645 }
646
647 ptd->dw2 |= cpu_to_le32(period);
648 ptd->dw4 = cpu_to_le32(usof);
649}
650
651static void transform_into_int(struct isp1760_hcd *priv, struct isp1760_qh *qh,
652 struct isp1760_qtd *qtd, struct urb *urb,
653 u32 payload, struct ptd *ptd)
654{
655 transform_into_atl(priv, qh, qtd, urb, payload, ptd);
656 transform_add_int(priv, qh, qtd, urb, payload, ptd);
657}
658
659static int qtd_fill(struct isp1760_qtd *qtd, void *databuffer, size_t len,
660 u32 token)
661{
662 int count;
663
664 qtd->data_buffer = databuffer;
665 qtd->packet_type = GET_QTD_TOKEN_TYPE(token);
666 qtd->toggle = GET_DATA_TOGGLE(token);
667
668 if (len > HC_ATL_PL_SIZE)
669 count = HC_ATL_PL_SIZE;
670 else
671 count = len;
672
673 qtd->length = count;
674 return count;
675}
676
677static int check_error(struct ptd *ptd)
678{
679 int error = 0;
680 u32 dw3;
681
682 dw3 = le32_to_cpu(ptd->dw3);
683 if (dw3 & DW3_HALT_BIT)
684 error = -EPIPE;
685
686 if (dw3 & DW3_ERROR_BIT) {
687 printk(KERN_ERR "error bit is set in DW3\n");
688 error = -EPIPE;
689 }
690
691 if (dw3 & DW3_QTD_ACTIVE) {
692 printk(KERN_ERR "transfer active bit is set DW3\n");
693 printk(KERN_ERR "nak counter: %d, rl: %d\n", (dw3 >> 19) & 0xf,
694 (le32_to_cpu(ptd->dw2) >> 25) & 0xf);
695 }
696
697 return error;
698}
699
700static void check_int_err_status(u32 dw4)
701{
702 u32 i;
703
704 dw4 >>= 8;
705
706 for (i = 0; i < 8; i++) {
707 switch (dw4 & 0x7) {
708 case INT_UNDERRUN:
709 printk(KERN_ERR "ERROR: under run , %d\n", i);
710 break;
711
712 case INT_EXACT:
713 printk(KERN_ERR "ERROR: transaction error, %d\n", i);
714 break;
715
716 case INT_BABBLE:
717 printk(KERN_ERR "ERROR: babble error, %d\n", i);
718 break;
719 }
720 dw4 >>= 3;
721 }
722}
723
724static void enqueue_one_qtd(struct isp1760_qtd *qtd, struct isp1760_hcd *priv,
725 u32 payload)
726{
727 u32 token;
728 struct usb_hcd *hcd = priv_to_hcd(priv);
729
730 token = qtd->packet_type;
731
732 if (qtd->length && (qtd->length <= HC_ATL_PL_SIZE)) {
733 switch (token) {
734 case IN_PID:
735 break;
736 case OUT_PID:
737 case SETUP_PID:
738 priv_write_copy(priv, qtd->data_buffer,
739 hcd->regs + payload,
740 qtd->length);
741 }
742 }
743}
744
745static void enqueue_one_atl_qtd(u32 atl_regs, u32 payload,
746 struct isp1760_hcd *priv, struct isp1760_qh *qh,
747 struct urb *urb, u32 slot, struct isp1760_qtd *qtd)
748{
749 struct ptd ptd;
750 struct usb_hcd *hcd = priv_to_hcd(priv);
751
752 transform_into_atl(priv, qh, qtd, urb, payload, &ptd);
753 priv_write_copy(priv, (u32 *)&ptd, hcd->regs + atl_regs, sizeof(ptd));
754 enqueue_one_qtd(qtd, priv, payload);
755
756 priv->atl_ints[slot].urb = urb;
757 priv->atl_ints[slot].qh = qh;
758 priv->atl_ints[slot].qtd = qtd;
759 priv->atl_ints[slot].data_buffer = qtd->data_buffer;
760 priv->atl_ints[slot].payload = payload;
761 qtd->status |= URB_ENQUEUED | URB_TYPE_ATL;
762 qtd->status |= slot << 16;
763}
764
765static void enqueue_one_int_qtd(u32 int_regs, u32 payload,
766 struct isp1760_hcd *priv, struct isp1760_qh *qh,
767 struct urb *urb, u32 slot, struct isp1760_qtd *qtd)
768{
769 struct ptd ptd;
770 struct usb_hcd *hcd = priv_to_hcd(priv);
771
772 transform_into_int(priv, qh, qtd, urb, payload, &ptd);
773 priv_write_copy(priv, (u32 *)&ptd, hcd->regs + int_regs, sizeof(ptd));
774 enqueue_one_qtd(qtd, priv, payload);
775
776 priv->int_ints[slot].urb = urb;
777 priv->int_ints[slot].qh = qh;
778 priv->int_ints[slot].qtd = qtd;
779 priv->int_ints[slot].data_buffer = qtd->data_buffer;
780 priv->int_ints[slot].payload = payload;
781 qtd->status |= URB_ENQUEUED | URB_TYPE_INT;
782 qtd->status |= slot << 16;
783}
784
785void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh,
786 struct isp1760_qtd *qtd)
787{
788 struct isp1760_hcd *priv = hcd_to_priv(hcd);
789 u32 skip_map, or_map;
790 u32 queue_entry;
791 u32 slot;
792 u32 atl_regs, payload;
793 u32 buffstatus;
794
795 skip_map = isp1760_readl(hcd->regs + HC_ATL_PTD_SKIPMAP_REG);
796
797 BUG_ON(!skip_map);
798 slot = __ffs(skip_map);
799 queue_entry = 1 << slot;
800
801 atl_regs = ATL_REGS_OFFSET + slot * sizeof(struct ptd);
802
803 payload = alloc_mem(priv, qtd->length);
804
805 enqueue_one_atl_qtd(atl_regs, payload, priv, qh, qtd->urb, slot, qtd);
806
807 or_map = isp1760_readl(hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
808 or_map |= queue_entry;
809 isp1760_writel(or_map, hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
810
811 skip_map &= ~queue_entry;
812 isp1760_writel(skip_map, hcd->regs + HC_ATL_PTD_SKIPMAP_REG);
813
814 buffstatus = isp1760_readl(hcd->regs + HC_BUFFER_STATUS_REG);
815 buffstatus |= ATL_BUFFER;
816 isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG);
817}
818
819void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh,
820 struct isp1760_qtd *qtd)
821{
822 struct isp1760_hcd *priv = hcd_to_priv(hcd);
823 u32 skip_map, or_map;
824 u32 queue_entry;
825 u32 slot;
826 u32 int_regs, payload;
827 u32 buffstatus;
828
829 skip_map = isp1760_readl(hcd->regs + HC_INT_PTD_SKIPMAP_REG);
830
831 BUG_ON(!skip_map);
832 slot = __ffs(skip_map);
833 queue_entry = 1 << slot;
834
835 int_regs = INT_REGS_OFFSET + slot * sizeof(struct ptd);
836
837 payload = alloc_mem(priv, qtd->length);
838
839 enqueue_one_int_qtd(int_regs, payload, priv, qh, qtd->urb, slot, qtd);
840
841 or_map = isp1760_readl(hcd->regs + HC_INT_IRQ_MASK_OR_REG);
842 or_map |= queue_entry;
843 isp1760_writel(or_map, hcd->regs + HC_INT_IRQ_MASK_OR_REG);
844
845 skip_map &= ~queue_entry;
846 isp1760_writel(skip_map, hcd->regs + HC_INT_PTD_SKIPMAP_REG);
847
848 buffstatus = isp1760_readl(hcd->regs + HC_BUFFER_STATUS_REG);
849 buffstatus |= INT_BUFFER;
850 isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG);
851}
852
853static void isp1760_urb_done(struct isp1760_hcd *priv, struct urb *urb, int status)
854__releases(priv->lock)
855__acquires(priv->lock)
856{
857 if (!urb->unlinked) {
858 if (status == -EINPROGRESS)
859 status = 0;
860 }
861
862 /* complete() can reenter this HCD */
863 usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
864 spin_unlock(&priv->lock);
865 usb_hcd_giveback_urb(priv_to_hcd(priv), urb, status);
866 spin_lock(&priv->lock);
867}
868
869static void isp1760_qtd_free(struct isp1760_qtd *qtd)
870{
871 kmem_cache_free(qtd_cachep, qtd);
872}
873
874static struct isp1760_qtd *clean_this_qtd(struct isp1760_qtd *qtd)
875{
876 struct isp1760_qtd *tmp_qtd;
877
878 tmp_qtd = qtd->hw_next;
879 list_del(&qtd->qtd_list);
880 isp1760_qtd_free(qtd);
881 return tmp_qtd;
882}
883
884/*
885 * Remove this QTD from the QH list and free its memory. If this QTD
886 * isn't the last one than remove also his successor(s).
887 * Returns the QTD which is part of an new URB and should be enqueued.
888 */
889static struct isp1760_qtd *clean_up_qtdlist(struct isp1760_qtd *qtd)
890{
891 struct isp1760_qtd *tmp_qtd;
892 int last_one;
893
894 do {
895 tmp_qtd = qtd->hw_next;
896 last_one = qtd->status & URB_COMPLETE_NOTIFY;
897 list_del(&qtd->qtd_list);
898 isp1760_qtd_free(qtd);
899 qtd = tmp_qtd;
900 } while (!last_one && qtd);
901
902 return qtd;
903}
904
905static void do_atl_int(struct usb_hcd *usb_hcd)
906{
907 struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
908 u32 done_map, skip_map;
909 struct ptd ptd;
910 struct urb *urb = NULL;
911 u32 atl_regs_base;
912 u32 atl_regs;
913 u32 queue_entry;
914 u32 payload;
915 u32 length;
916 u32 or_map;
917 u32 status = -EINVAL;
918 int error;
919 struct isp1760_qtd *qtd;
920 struct isp1760_qh *qh;
921 u32 rl;
922 u32 nakcount;
923
924 done_map = isp1760_readl(usb_hcd->regs +
925 HC_ATL_PTD_DONEMAP_REG);
926 skip_map = isp1760_readl(usb_hcd->regs +
927 HC_ATL_PTD_SKIPMAP_REG);
928
929 or_map = isp1760_readl(usb_hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
930 or_map &= ~done_map;
931 isp1760_writel(or_map, usb_hcd->regs + HC_ATL_IRQ_MASK_OR_REG);
932
933 atl_regs_base = ATL_REGS_OFFSET;
934 while (done_map) {
935 u32 dw1;
936 u32 dw2;
937 u32 dw3;
938
939 status = 0;
940
941 queue_entry = __ffs(done_map);
942 done_map &= ~(1 << queue_entry);
943 skip_map |= 1 << queue_entry;
944
945 atl_regs = atl_regs_base + queue_entry * sizeof(struct ptd);
946
947 urb = priv->atl_ints[queue_entry].urb;
948 qtd = priv->atl_ints[queue_entry].qtd;
949 qh = priv->atl_ints[queue_entry].qh;
950 payload = priv->atl_ints[queue_entry].payload;
951
952 if (!qh) {
953 printk(KERN_ERR "qh is 0\n");
954 continue;
955 }
956 priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + atl_regs,
957 atl_regs, sizeof(ptd));
958
959 dw1 = le32_to_cpu(ptd.dw1);
960 dw2 = le32_to_cpu(ptd.dw2);
961 dw3 = le32_to_cpu(ptd.dw3);
962 rl = (dw2 >> 25) & 0x0f;
963 nakcount = (dw3 >> 19) & 0xf;
964
965 /* Transfer Error, *but* active and no HALT -> reload */
966 if ((dw3 & DW3_ERROR_BIT) && (dw3 & DW3_QTD_ACTIVE) &&
967 !(dw3 & DW3_HALT_BIT)) {
968
969 /* according to ppriv code, we have to
970 * reload this one if trasfered bytes != requested bytes
971 * else act like everything went smooth..
972 * XXX This just doesn't feel right and hasn't
973 * triggered so far.
974 */
975
976 length = PTD_XFERRED_LENGTH(dw3);
977 printk(KERN_ERR "Should reload now.... transfered %d "
978 "of %zu\n", length, qtd->length);
979 BUG();
980 }
981
982 if (!nakcount && (dw3 & DW3_QTD_ACTIVE)) {
983 u32 buffstatus;
984
985 /* XXX
986 * NAKs are handled in HW by the chip. Usually if the
987 * device is not able to send data fast enough.
988 * This did not trigger for a long time now.
989 */
990 printk(KERN_ERR "Reloading ptd %p/%p... qh %p readed: "
991 "%d of %d done: %08x cur: %08x\n", qtd,
992 urb, qh, PTD_XFERRED_LENGTH(dw3),
993 qtd->length, done_map,
994 (1 << queue_entry));
995
996 /* RL counter = ERR counter */
997 dw3 &= ~(0xf << 19);
998 dw3 |= rl << 19;
999 dw3 &= ~(3 << (55 - 32));
1000 dw3 |= ERR_COUNTER << (55 - 32);
1001
1002 /*
1003 * It is not needed to write skip map back because it
1004 * is unchanged. Just make sure that this entry is
1005 * unskipped once it gets written to the HW.
1006 */
1007 skip_map &= ~(1 << queue_entry);
1008 or_map = isp1760_readl(usb_hcd->regs +
1009 HC_ATL_IRQ_MASK_OR_REG);
1010 or_map |= 1 << queue_entry;
1011 isp1760_writel(or_map, usb_hcd->regs +
1012 HC_ATL_IRQ_MASK_OR_REG);
1013
1014 ptd.dw3 = cpu_to_le32(dw3);
1015 priv_write_copy(priv, (u32 *)&ptd, usb_hcd->regs +
1016 atl_regs, sizeof(ptd));
1017
1018 ptd.dw0 |= __constant_cpu_to_le32(PTD_VALID);
1019 priv_write_copy(priv, (u32 *)&ptd, usb_hcd->regs +
1020 atl_regs, sizeof(ptd));
1021
1022 buffstatus = isp1760_readl(usb_hcd->regs +
1023 HC_BUFFER_STATUS_REG);
1024 buffstatus |= ATL_BUFFER;
1025 isp1760_writel(buffstatus, usb_hcd->regs +
1026 HC_BUFFER_STATUS_REG);
1027 continue;
1028 }
1029
1030 error = check_error(&ptd);
1031 if (error) {
1032 status = error;
1033 priv->atl_ints[queue_entry].qh->toggle = 0;
1034 priv->atl_ints[queue_entry].qh->ping = 0;
1035 urb->status = -EPIPE;
1036
1037#if 0
1038 printk(KERN_ERR "Error in %s().\n", __func__);
1039 printk(KERN_ERR "IN dw0: %08x dw1: %08x dw2: %08x "
1040 "dw3: %08x dw4: %08x dw5: %08x dw6: "
1041 "%08x dw7: %08x\n",
1042 ptd.dw0, ptd.dw1, ptd.dw2, ptd.dw3,
1043 ptd.dw4, ptd.dw5, ptd.dw6, ptd.dw7);
1044#endif
1045 } else {
1046 if (usb_pipetype(urb->pipe) == PIPE_BULK) {
1047 priv->atl_ints[queue_entry].qh->toggle = dw3 &
1048 (1 << 25);
1049 priv->atl_ints[queue_entry].qh->ping = dw3 &
1050 (1 << 26);
1051 }
1052 }
1053
1054 length = PTD_XFERRED_LENGTH(dw3);
1055 if (length) {
1056 switch (DW1_GET_PID(dw1)) {
1057 case IN_PID:
1058 priv_read_copy(priv,
1059 priv->atl_ints[queue_entry].data_buffer,
1060 usb_hcd->regs + payload, payload,
1061 length);
1062
1063 case OUT_PID:
1064
1065 urb->actual_length += length;
1066
1067 case SETUP_PID:
1068 break;
1069 }
1070 }
1071
1072 priv->atl_ints[queue_entry].data_buffer = NULL;
1073 priv->atl_ints[queue_entry].urb = NULL;
1074 priv->atl_ints[queue_entry].qtd = NULL;
1075 priv->atl_ints[queue_entry].qh = NULL;
1076
1077 free_mem(priv, payload);
1078
1079 isp1760_writel(skip_map, usb_hcd->regs +
1080 HC_ATL_PTD_SKIPMAP_REG);
1081
1082 if (urb->status == -EPIPE) {
1083 /* HALT was received */
1084
1085 qtd = clean_up_qtdlist(qtd);
1086 isp1760_urb_done(priv, urb, urb->status);
1087
1088 } else if (usb_pipebulk(urb->pipe) && (length < qtd->length)) {
1089 /* short BULK received */
1090
1091 printk(KERN_ERR "short bulk, %d instead %d\n", length,
1092 qtd->length);
1093 if (urb->transfer_flags & URB_SHORT_NOT_OK) {
1094 urb->status = -EREMOTEIO;
1095 printk(KERN_ERR "not okey\n");
1096 }
1097
1098 if (urb->status == -EINPROGRESS)
1099 urb->status = 0;
1100
1101 qtd = clean_up_qtdlist(qtd);
1102
1103 isp1760_urb_done(priv, urb, urb->status);
1104
1105 } else if (qtd->status & URB_COMPLETE_NOTIFY) {
1106 /* that was the last qtd of that URB */
1107
1108 if (urb->status == -EINPROGRESS)
1109 urb->status = 0;
1110
1111 qtd = clean_this_qtd(qtd);
1112 isp1760_urb_done(priv, urb, urb->status);
1113
1114 } else {
1115 /* next QTD of this URB */
1116
1117 qtd = clean_this_qtd(qtd);
1118 BUG_ON(!qtd);
1119 }
1120
1121 if (qtd)
1122 enqueue_an_ATL_packet(usb_hcd, qh, qtd);
1123
1124 skip_map = isp1760_readl(usb_hcd->regs +
1125 HC_ATL_PTD_SKIPMAP_REG);
1126 }
1127}
1128
1129static void do_intl_int(struct usb_hcd *usb_hcd)
1130{
1131 struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
1132 u32 done_map, skip_map;
1133 struct ptd ptd;
1134 struct urb *urb = NULL;
1135 u32 int_regs;
1136 u32 int_regs_base;
1137 u32 payload;
1138 u32 length;
1139 u32 or_map;
1140 int error;
1141 u32 queue_entry;
1142 struct isp1760_qtd *qtd;
1143 struct isp1760_qh *qh;
1144
1145 done_map = isp1760_readl(usb_hcd->regs +
1146 HC_INT_PTD_DONEMAP_REG);
1147 skip_map = isp1760_readl(usb_hcd->regs +
1148 HC_INT_PTD_SKIPMAP_REG);
1149
1150 or_map = isp1760_readl(usb_hcd->regs + HC_INT_IRQ_MASK_OR_REG);
1151 or_map &= ~done_map;
1152 isp1760_writel(or_map, usb_hcd->regs + HC_INT_IRQ_MASK_OR_REG);
1153
1154 int_regs_base = INT_REGS_OFFSET;
1155
1156 while (done_map) {
1157 u32 dw1;
1158 u32 dw3;
1159
1160 queue_entry = __ffs(done_map);
1161 done_map &= ~(1 << queue_entry);
1162 skip_map |= 1 << queue_entry;
1163
1164 int_regs = int_regs_base + queue_entry * sizeof(struct ptd);
1165 urb = priv->int_ints[queue_entry].urb;
1166 qtd = priv->int_ints[queue_entry].qtd;
1167 qh = priv->int_ints[queue_entry].qh;
1168 payload = priv->int_ints[queue_entry].payload;
1169
1170 if (!qh) {
1171 printk(KERN_ERR "(INT) qh is 0\n");
1172 continue;
1173 }
1174
1175 priv_read_copy(priv, (u32 *)&ptd, usb_hcd->regs + int_regs,
1176 int_regs, sizeof(ptd));
1177 dw1 = le32_to_cpu(ptd.dw1);
1178 dw3 = le32_to_cpu(ptd.dw3);
1179 check_int_err_status(le32_to_cpu(ptd.dw4));
1180
1181 error = check_error(&ptd);
1182 if (error) {
1183#if 0
1184 printk(KERN_ERR "Error in %s().\n", __func__);
1185 printk(KERN_ERR "IN dw0: %08x dw1: %08x dw2: %08x "
1186 "dw3: %08x dw4: %08x dw5: %08x dw6: "
1187 "%08x dw7: %08x\n",
1188 ptd.dw0, ptd.dw1, ptd.dw2, ptd.dw3,
1189 ptd.dw4, ptd.dw5, ptd.dw6, ptd.dw7);
1190#endif
1191 urb->status = -EPIPE;
1192 priv->int_ints[queue_entry].qh->toggle = 0;
1193 priv->int_ints[queue_entry].qh->ping = 0;
1194
1195 } else {
1196 priv->int_ints[queue_entry].qh->toggle =
1197 dw3 & (1 << 25);
1198 priv->int_ints[queue_entry].qh->ping = dw3 & (1 << 26);
1199 }
1200
1201 if (urb->dev->speed != USB_SPEED_HIGH)
1202 length = PTD_XFERRED_LENGTH_LO(dw3);
1203 else
1204 length = PTD_XFERRED_LENGTH(dw3);
1205
1206 if (length) {
1207 switch (DW1_GET_PID(dw1)) {
1208 case IN_PID:
1209 priv_read_copy(priv,
1210 priv->int_ints[queue_entry].data_buffer,
1211 usb_hcd->regs + payload , payload,
1212 length);
1213 case OUT_PID:
1214
1215 urb->actual_length += length;
1216
1217 case SETUP_PID:
1218 break;
1219 }
1220 }
1221
1222 priv->int_ints[queue_entry].data_buffer = NULL;
1223 priv->int_ints[queue_entry].urb = NULL;
1224 priv->int_ints[queue_entry].qtd = NULL;
1225 priv->int_ints[queue_entry].qh = NULL;
1226
1227 isp1760_writel(skip_map, usb_hcd->regs +
1228 HC_INT_PTD_SKIPMAP_REG);
1229 free_mem(priv, payload);
1230
1231 if (urb->status == -EPIPE) {
1232 /* HALT received */
1233
1234 qtd = clean_up_qtdlist(qtd);
1235 isp1760_urb_done(priv, urb, urb->status);
1236
1237 } else if (qtd->status & URB_COMPLETE_NOTIFY) {
1238
1239 if (urb->status == -EINPROGRESS)
1240 urb->status = 0;
1241
1242 qtd = clean_this_qtd(qtd);
1243 isp1760_urb_done(priv, urb, urb->status);
1244
1245 } else {
1246 /* next QTD of this URB */
1247
1248 qtd = clean_this_qtd(qtd);
1249 BUG_ON(!qtd);
1250 }
1251
1252 if (qtd)
1253 enqueue_an_INT_packet(usb_hcd, qh, qtd);
1254
1255 skip_map = isp1760_readl(usb_hcd->regs +
1256 HC_INT_PTD_SKIPMAP_REG);
1257 }
1258}
1259
1260#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
1261static struct isp1760_qh *qh_make(struct isp1760_hcd *priv, struct urb *urb,
1262 gfp_t flags)
1263{
1264 struct isp1760_qh *qh;
1265 int is_input, type;
1266
1267 qh = isp1760_qh_alloc(priv, flags);
1268 if (!qh)
1269 return qh;
1270
1271 /*
1272 * init endpoint/device data for this QH
1273 */
1274 is_input = usb_pipein(urb->pipe);
1275 type = usb_pipetype(urb->pipe);
1276
1277 if (type == PIPE_INTERRUPT) {
1278
1279 if (urb->dev->speed == USB_SPEED_HIGH) {
1280
1281 qh->period = urb->interval >> 3;
1282 if (qh->period == 0 && urb->interval != 1) {
1283 /* NOTE interval 2 or 4 uframes could work.
1284 * But interval 1 scheduling is simpler, and
1285 * includes high bandwidth.
1286 */
1287 printk(KERN_ERR "intr period %d uframes, NYET!",
1288 urb->interval);
1289 qh_destroy(qh);
1290 return NULL;
1291 }
1292 } else {
1293 qh->period = urb->interval;
1294 }
1295 }
1296
1297 /* support for tt scheduling, and access to toggles */
1298 qh->dev = urb->dev;
1299
1300 if (!usb_pipecontrol(urb->pipe))
1301 usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), !is_input,
1302 1);
1303 return qh;
1304}
1305
1306/*
1307 * For control/bulk/interrupt, return QH with these TDs appended.
1308 * Allocates and initializes the QH if necessary.
1309 * Returns null if it can't allocate a QH it needs to.
1310 * If the QH has TDs (urbs) already, that's great.
1311 */
1312static struct isp1760_qh *qh_append_tds(struct isp1760_hcd *priv,
1313 struct urb *urb, struct list_head *qtd_list, int epnum,
1314 void **ptr)
1315{
1316 struct isp1760_qh *qh;
1317 struct isp1760_qtd *qtd;
1318 struct isp1760_qtd *prev_qtd;
1319
1320 qh = (struct isp1760_qh *)*ptr;
1321 if (!qh) {
1322 /* can't sleep here, we have priv->lock... */
1323 qh = qh_make(priv, urb, GFP_ATOMIC);
1324 if (!qh)
1325 return qh;
1326 *ptr = qh;
1327 }
1328
1329 qtd = list_entry(qtd_list->next, struct isp1760_qtd,
1330 qtd_list);
1331 if (!list_empty(&qh->qtd_list))
1332 prev_qtd = list_entry(qh->qtd_list.prev,
1333 struct isp1760_qtd, qtd_list);
1334 else
1335 prev_qtd = NULL;
1336
1337 list_splice(qtd_list, qh->qtd_list.prev);
1338 if (prev_qtd) {
1339 BUG_ON(prev_qtd->hw_next);
1340 prev_qtd->hw_next = qtd;
1341 }
1342
1343 urb->hcpriv = qh;
1344 return qh;
1345}
1346
1347static void qtd_list_free(struct isp1760_hcd *priv, struct urb *urb,
1348 struct list_head *qtd_list)
1349{
1350 struct list_head *entry, *temp;
1351
1352 list_for_each_safe(entry, temp, qtd_list) {
1353 struct isp1760_qtd *qtd;
1354
1355 qtd = list_entry(entry, struct isp1760_qtd, qtd_list);
1356 list_del(&qtd->qtd_list);
1357 isp1760_qtd_free(qtd);
1358 }
1359}
1360
1361static int isp1760_prepare_enqueue(struct isp1760_hcd *priv, struct urb *urb,
1362 struct list_head *qtd_list, gfp_t mem_flags, packet_enqueue *p)
1363{
1364 struct isp1760_qtd *qtd;
1365 int epnum;
1366 unsigned long flags;
1367 struct isp1760_qh *qh = NULL;
1368 int rc;
1369 int qh_busy;
1370
1371 qtd = list_entry(qtd_list->next, struct isp1760_qtd, qtd_list);
1372 epnum = urb->ep->desc.bEndpointAddress;
1373
1374 spin_lock_irqsave(&priv->lock, flags);
1375 if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &priv_to_hcd(priv)->flags)) {
1376 rc = -ESHUTDOWN;
1377 goto done;
1378 }
1379 rc = usb_hcd_link_urb_to_ep(priv_to_hcd(priv), urb);
1380 if (rc)
1381 goto done;
1382
1383 qh = urb->ep->hcpriv;
1384 if (qh)
1385 qh_busy = !list_empty(&qh->qtd_list);
1386 else
1387 qh_busy = 0;
1388
1389 qh = qh_append_tds(priv, urb, qtd_list, epnum, &urb->ep->hcpriv);
1390 if (!qh) {
1391 usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
1392 rc = -ENOMEM;
1393 goto done;
1394 }
1395
1396 if (!qh_busy)
1397 p(priv_to_hcd(priv), qh, qtd);
1398
1399done:
1400 spin_unlock_irqrestore(&priv->lock, flags);
1401 if (!qh)
1402 qtd_list_free(priv, urb, qtd_list);
1403 return rc;
1404}
1405
1406static struct isp1760_qtd *isp1760_qtd_alloc(struct isp1760_hcd *priv,
1407 gfp_t flags)
1408{
1409 struct isp1760_qtd *qtd;
1410
1411 qtd = kmem_cache_zalloc(qtd_cachep, flags);
1412 if (qtd)
1413 INIT_LIST_HEAD(&qtd->qtd_list);
1414
1415 return qtd;
1416}
1417
1418/*
1419 * create a list of filled qtds for this URB; won't link into qh.
1420 */
1421static struct list_head *qh_urb_transaction(struct isp1760_hcd *priv,
1422 struct urb *urb, struct list_head *head, gfp_t flags)
1423{
1424 struct isp1760_qtd *qtd, *qtd_prev;
1425 void *buf;
1426 int len, maxpacket;
1427 int is_input;
1428 u32 token;
1429
1430 /*
1431 * URBs map to sequences of QTDs: one logical transaction
1432 */
1433 qtd = isp1760_qtd_alloc(priv, flags);
1434 if (!qtd)
1435 return NULL;
1436
1437 list_add_tail(&qtd->qtd_list, head);
1438 qtd->urb = urb;
1439 urb->status = -EINPROGRESS;
1440
1441 token = 0;
1442 /* for split transactions, SplitXState initialized to zero */
1443
1444 len = urb->transfer_buffer_length;
1445 is_input = usb_pipein(urb->pipe);
1446 if (usb_pipecontrol(urb->pipe)) {
1447 /* SETUP pid */
1448 qtd_fill(qtd, urb->setup_packet,
1449 sizeof(struct usb_ctrlrequest),
1450 token | SETUP_PID);
1451
1452 /* ... and always at least one more pid */
1453 token ^= DATA_TOGGLE;
1454 qtd_prev = qtd;
1455 qtd = isp1760_qtd_alloc(priv, flags);
1456 if (!qtd)
1457 goto cleanup;
1458 qtd->urb = urb;
1459 qtd_prev->hw_next = qtd;
1460 list_add_tail(&qtd->qtd_list, head);
1461
1462 /* for zero length DATA stages, STATUS is always IN */
1463 if (len == 0)
1464 token |= IN_PID;
1465 }
1466
1467 /*
1468 * data transfer stage: buffer setup
1469 */
1470 buf = urb->transfer_buffer;
1471
1472 if (is_input)
1473 token |= IN_PID;
1474 else
1475 token |= OUT_PID;
1476
1477 maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, !is_input));
1478
1479 /*
1480 * buffer gets wrapped in one or more qtds;
1481 * last one may be "short" (including zero len)
1482 * and may serve as a control status ack
1483 */
1484 for (;;) {
1485 int this_qtd_len;
1486
1487 if (!buf && len) {
1488 /* XXX This looks like usb storage / SCSI bug */
1489 printk(KERN_ERR "buf is null, dma is %08lx len is %d\n",
1490 (long unsigned)urb->transfer_dma, len);
1491 WARN_ON(1);
1492 }
1493
1494 this_qtd_len = qtd_fill(qtd, buf, len, token);
1495 len -= this_qtd_len;
1496 buf += this_qtd_len;
1497
1498 /* qh makes control packets use qtd toggle; maybe switch it */
1499 if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0)
1500 token ^= DATA_TOGGLE;
1501
1502 if (len <= 0)
1503 break;
1504
1505 qtd_prev = qtd;
1506 qtd = isp1760_qtd_alloc(priv, flags);
1507 if (!qtd)
1508 goto cleanup;
1509 qtd->urb = urb;
1510 qtd_prev->hw_next = qtd;
1511 list_add_tail(&qtd->qtd_list, head);
1512 }
1513
1514 /*
1515 * control requests may need a terminating data "status" ack;
1516 * bulk ones may need a terminating short packet (zero length).
1517 */
1518 if (urb->transfer_buffer_length != 0) {
1519 int one_more = 0;
1520
1521 if (usb_pipecontrol(urb->pipe)) {
1522 one_more = 1;
1523 /* "in" <--> "out" */
1524 token ^= IN_PID;
1525 /* force DATA1 */
1526 token |= DATA_TOGGLE;
1527 } else if (usb_pipebulk(urb->pipe)
1528 && (urb->transfer_flags & URB_ZERO_PACKET)
1529 && !(urb->transfer_buffer_length % maxpacket)) {
1530 one_more = 1;
1531 }
1532 if (one_more) {
1533 qtd_prev = qtd;
1534 qtd = isp1760_qtd_alloc(priv, flags);
1535 if (!qtd)
1536 goto cleanup;
1537 qtd->urb = urb;
1538 qtd_prev->hw_next = qtd;
1539 list_add_tail(&qtd->qtd_list, head);
1540
1541 /* never any data in such packets */
1542 qtd_fill(qtd, NULL, 0, token);
1543 }
1544 }
1545
1546 qtd->status = URB_COMPLETE_NOTIFY;
1547 return head;
1548
1549cleanup:
1550 qtd_list_free(priv, urb, head);
1551 return NULL;
1552}
1553
1554static int isp1760_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
1555 gfp_t mem_flags)
1556{
1557 struct isp1760_hcd *priv = hcd_to_priv(hcd);
1558 struct list_head qtd_list;
1559 packet_enqueue *pe;
1560
1561 INIT_LIST_HEAD(&qtd_list);
1562
1563 switch (usb_pipetype(urb->pipe)) {
1564 case PIPE_CONTROL:
1565 case PIPE_BULK:
1566
1567 if (!qh_urb_transaction(priv, urb, &qtd_list, mem_flags))
1568 return -ENOMEM;
1569 pe = enqueue_an_ATL_packet;
1570 break;
1571
1572 case PIPE_INTERRUPT:
1573 if (!qh_urb_transaction(priv, urb, &qtd_list, mem_flags))
1574 return -ENOMEM;
1575 pe = enqueue_an_INT_packet;
1576 break;
1577
1578 case PIPE_ISOCHRONOUS:
1579 printk(KERN_ERR "PIPE_ISOCHRONOUS ain't supported\n");
1580 default:
1581 return -EPIPE;
1582 }
1583
1584 isp1760_prepare_enqueue(priv, urb, &qtd_list, mem_flags, pe);
1585 return 0;
1586}
1587
1588static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1589 int status)
1590{
1591 struct isp1760_hcd *priv = hcd_to_priv(hcd);
1592 struct inter_packet_info *ints;
1593 u32 i;
1594 u32 reg_base, or_reg, skip_reg;
1595 int flags;
1596 struct ptd ptd;
1597
1598 switch (usb_pipetype(urb->pipe)) {
1599 case PIPE_ISOCHRONOUS:
1600 return -EPIPE;
1601 break;
1602
1603 case PIPE_INTERRUPT:
1604 ints = priv->int_ints;
1605 reg_base = INT_REGS_OFFSET;
1606 or_reg = HC_INT_IRQ_MASK_OR_REG;
1607 skip_reg = HC_INT_PTD_SKIPMAP_REG;
1608 break;
1609
1610 default:
1611 ints = priv->atl_ints;
1612 reg_base = ATL_REGS_OFFSET;
1613 or_reg = HC_ATL_IRQ_MASK_OR_REG;
1614 skip_reg = HC_ATL_PTD_SKIPMAP_REG;
1615 break;
1616 }
1617
1618 memset(&ptd, 0, sizeof(ptd));
1619 spin_lock_irqsave(&priv->lock, flags);
1620
1621 for (i = 0; i < 32; i++) {
1622 if (ints->urb == urb) {
1623 u32 skip_map;
1624 u32 or_map;
1625 struct isp1760_qtd *qtd;
1626
1627 skip_map = isp1760_readl(hcd->regs + skip_reg);
1628 skip_map |= 1 << i;
1629 isp1760_writel(skip_map, hcd->regs + skip_reg);
1630
1631 or_map = isp1760_readl(hcd->regs + or_reg);
1632 or_map &= ~(1 << i);
1633 isp1760_writel(or_map, hcd->regs + or_reg);
1634
1635 priv_write_copy(priv, (u32 *)&ptd, hcd->regs + reg_base
1636 + i * sizeof(ptd), sizeof(ptd));
1637 qtd = ints->qtd;
1638
1639 clean_up_qtdlist(qtd);
1640
1641 free_mem(priv, ints->payload);
1642
1643 ints->urb = NULL;
1644 ints->qh = NULL;
1645 ints->qtd = NULL;
1646 ints->data_buffer = NULL;
1647 ints->payload = 0;
1648
1649 isp1760_urb_done(priv, urb, status);
1650 break;
1651 }
1652 ints++;
1653 }
1654
1655 spin_unlock_irqrestore(&priv->lock, flags);
1656 return 0;
1657}
1658
1659static irqreturn_t isp1760_irq(struct usb_hcd *usb_hcd)
1660{
1661 struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
1662 u32 imask;
1663 irqreturn_t irqret = IRQ_NONE;
1664
1665 spin_lock(&priv->lock);
1666
1667 if (!(usb_hcd->state & HC_STATE_RUNNING))
1668 goto leave;
1669
1670 imask = isp1760_readl(usb_hcd->regs + HC_INTERRUPT_REG);
1671 if (unlikely(!imask))
1672 goto leave;
1673
1674 isp1760_writel(imask, usb_hcd->regs + HC_INTERRUPT_REG);
1675 if (imask & HC_ATL_INT)
1676 do_atl_int(usb_hcd);
1677
1678 if (imask & HC_INTL_INT)
1679 do_intl_int(usb_hcd);
1680
1681 irqret = IRQ_HANDLED;
1682leave:
1683 spin_unlock(&priv->lock);
1684 return irqret;
1685}
1686
1687static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
1688{
1689 struct isp1760_hcd *priv = hcd_to_priv(hcd);
1690 u32 temp, status = 0;
1691 u32 mask;
1692 int retval = 1;
1693 unsigned long flags;
1694
1695 /* if !USB_SUSPEND, root hub timers won't get shut down ... */
1696 if (!HC_IS_RUNNING(hcd->state))
1697 return 0;
1698
1699 /* init status to no-changes */
1700 buf[0] = 0;
1701 mask = PORT_CSC;
1702
1703 spin_lock_irqsave(&priv->lock, flags);
1704 temp = isp1760_readl(hcd->regs + HC_PORTSC1);
1705
1706 if (temp & PORT_OWNER) {
1707 if (temp & PORT_CSC) {
1708 temp &= ~PORT_CSC;
1709 isp1760_writel(temp, hcd->regs + HC_PORTSC1);
1710 goto done;
1711 }
1712 }
1713
1714 /*
1715 * Return status information even for ports with OWNER set.
1716 * Otherwise khubd wouldn't see the disconnect event when a
1717 * high-speed device is switched over to the companion
1718 * controller by the user.
1719 */
1720
1721 if ((temp & mask) != 0
1722 || ((temp & PORT_RESUME) != 0
1723 && time_after_eq(jiffies,
1724 priv->reset_done))) {
1725 buf [0] |= 1 << (0 + 1);
1726 status = STS_PCD;
1727 }
1728 /* FIXME autosuspend idle root hubs */
1729done:
1730 spin_unlock_irqrestore(&priv->lock, flags);
1731 return status ? retval : 0;
1732}
1733
1734static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
1735 struct usb_hub_descriptor *desc)
1736{
1737 int ports = HCS_N_PORTS(priv->hcs_params);
1738 u16 temp;
1739
1740 desc->bDescriptorType = 0x29;
1741 /* priv 1.0, 2.3.9 says 20ms max */
1742 desc->bPwrOn2PwrGood = 10;
1743 desc->bHubContrCurrent = 0;
1744
1745 desc->bNbrPorts = ports;
1746 temp = 1 + (ports / 8);
1747 desc->bDescLength = 7 + 2 * temp;
1748
1749 /* two bitmaps: ports removable, and usb 1.0 legacy PortPwrCtrlMask */
1750 memset(&desc->bitmap[0], 0, temp);
1751 memset(&desc->bitmap[temp], 0xff, temp);
1752
1753 /* per-port overcurrent reporting */
1754 temp = 0x0008;
1755 if (HCS_PPC(priv->hcs_params))
1756 /* per-port power control */
1757 temp |= 0x0001;
1758 else
1759 /* no power switching */
1760 temp |= 0x0002;
1761 desc->wHubCharacteristics = cpu_to_le16(temp);
1762}
1763
1764#define PORT_WAKE_BITS (PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E)
1765
1766static int check_reset_complete(struct isp1760_hcd *priv, int index,
1767 u32 __iomem *status_reg, int port_status)
1768{
1769 if (!(port_status & PORT_CONNECT))
1770 return port_status;
1771
1772 /* if reset finished and it's still not enabled -- handoff */
1773 if (!(port_status & PORT_PE)) {
1774
1775 printk(KERN_ERR "port %d full speed --> companion\n",
1776 index + 1);
1777
1778 port_status |= PORT_OWNER;
1779 port_status &= ~PORT_RWC_BITS;
1780 isp1760_writel(port_status, status_reg);
1781
1782 } else
1783 printk(KERN_ERR "port %d high speed\n", index + 1);
1784
1785 return port_status;
1786}
1787
1788static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
1789 u16 wValue, u16 wIndex, char *buf, u16 wLength)
1790{
1791 struct isp1760_hcd *priv = hcd_to_priv(hcd);
1792 int ports = HCS_N_PORTS(priv->hcs_params);
1793 u32 __iomem *status_reg = hcd->regs + HC_PORTSC1;
1794 u32 temp, status;
1795 unsigned long flags;
1796 int retval = 0;
1797 unsigned selector;
1798
1799 /*
1800 * FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR.
1801 * HCS_INDICATOR may say we can change LEDs to off/amber/green.
1802 * (track current state ourselves) ... blink for diagnostics,
1803 * power, "this is the one", etc. EHCI spec supports this.
1804 */
1805
1806 spin_lock_irqsave(&priv->lock, flags);
1807 switch (typeReq) {
1808 case ClearHubFeature:
1809 switch (wValue) {
1810 case C_HUB_LOCAL_POWER:
1811 case C_HUB_OVER_CURRENT:
1812 /* no hub-wide feature/status flags */
1813 break;
1814 default:
1815 goto error;
1816 }
1817 break;
1818 case ClearPortFeature:
1819 if (!wIndex || wIndex > ports)
1820 goto error;
1821 wIndex--;
1822 temp = isp1760_readl(status_reg);
1823
1824 /*
1825 * Even if OWNER is set, so the port is owned by the
1826 * companion controller, khubd needs to be able to clear
1827 * the port-change status bits (especially
1828 * USB_PORT_FEAT_C_CONNECTION).
1829 */
1830
1831 switch (wValue) {
1832 case USB_PORT_FEAT_ENABLE:
1833 isp1760_writel(temp & ~PORT_PE, status_reg);
1834 break;
1835 case USB_PORT_FEAT_C_ENABLE:
1836 /* XXX error? */
1837 break;
1838 case USB_PORT_FEAT_SUSPEND:
1839 if (temp & PORT_RESET)
1840 goto error;
1841
1842 if (temp & PORT_SUSPEND) {
1843 if ((temp & PORT_PE) == 0)
1844 goto error;
1845 /* resume signaling for 20 msec */
1846 temp &= ~(PORT_RWC_BITS);
1847 isp1760_writel(temp | PORT_RESUME,
1848 status_reg);
1849 priv->reset_done = jiffies +
1850 msecs_to_jiffies(20);
1851 }
1852 break;
1853 case USB_PORT_FEAT_C_SUSPEND:
1854 /* we auto-clear this feature */
1855 break;
1856 case USB_PORT_FEAT_POWER:
1857 if (HCS_PPC(priv->hcs_params))
1858 isp1760_writel(temp & ~PORT_POWER, status_reg);
1859 break;
1860 case USB_PORT_FEAT_C_CONNECTION:
1861 isp1760_writel(temp | PORT_CSC,
1862 status_reg);
1863 break;
1864 case USB_PORT_FEAT_C_OVER_CURRENT:
1865 /* XXX error ?*/
1866 break;
1867 case USB_PORT_FEAT_C_RESET:
1868 /* GetPortStatus clears reset */
1869 break;
1870 default:
1871 goto error;
1872 }
1873 isp1760_readl(hcd->regs + HC_USBCMD);
1874 break;
1875 case GetHubDescriptor:
1876 isp1760_hub_descriptor(priv, (struct usb_hub_descriptor *)
1877 buf);
1878 break;
1879 case GetHubStatus:
1880 /* no hub-wide feature/status flags */
1881 memset(buf, 0, 4);
1882 break;
1883 case GetPortStatus:
1884 if (!wIndex || wIndex > ports)
1885 goto error;
1886 wIndex--;
1887 status = 0;
1888 temp = isp1760_readl(status_reg);
1889
1890 /* wPortChange bits */
1891 if (temp & PORT_CSC)
1892 status |= 1 << USB_PORT_FEAT_C_CONNECTION;
1893
1894
1895 /* whoever resumes must GetPortStatus to complete it!! */
1896 if (temp & PORT_RESUME) {
1897 printk(KERN_ERR "Port resume should be skipped.\n");
1898
1899 /* Remote Wakeup received? */
1900 if (!priv->reset_done) {
1901 /* resume signaling for 20 msec */
1902 priv->reset_done = jiffies
1903 + msecs_to_jiffies(20);
1904 /* check the port again */
1905 mod_timer(&priv_to_hcd(priv)->rh_timer,
1906 priv->reset_done);
1907 }
1908
1909 /* resume completed? */
1910 else if (time_after_eq(jiffies,
1911 priv->reset_done)) {
1912 status |= 1 << USB_PORT_FEAT_C_SUSPEND;
1913 priv->reset_done = 0;
1914
1915 /* stop resume signaling */
1916 temp = isp1760_readl(status_reg);
1917 isp1760_writel(
1918 temp & ~(PORT_RWC_BITS | PORT_RESUME),
1919 status_reg);
1920 retval = handshake(priv, status_reg,
1921 PORT_RESUME, 0, 2000 /* 2msec */);
1922 if (retval != 0) {
1923 isp1760_err(priv,
1924 "port %d resume error %d\n",
1925 wIndex + 1, retval);
1926 goto error;
1927 }
1928 temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10));
1929 }
1930 }
1931
1932 /* whoever resets must GetPortStatus to complete it!! */
1933 if ((temp & PORT_RESET)
1934 && time_after_eq(jiffies,
1935 priv->reset_done)) {
1936 status |= 1 << USB_PORT_FEAT_C_RESET;
1937 priv->reset_done = 0;
1938
1939 /* force reset to complete */
1940 isp1760_writel(temp & ~PORT_RESET,
1941 status_reg);
1942 /* REVISIT: some hardware needs 550+ usec to clear
1943 * this bit; seems too long to spin routinely...
1944 */
1945 retval = handshake(priv, status_reg,
1946 PORT_RESET, 0, 750);
1947 if (retval != 0) {
1948 isp1760_err(priv, "port %d reset error %d\n",
1949 wIndex + 1, retval);
1950 goto error;
1951 }
1952
1953 /* see what we found out */
1954 temp = check_reset_complete(priv, wIndex, status_reg,
1955 isp1760_readl(status_reg));
1956 }
1957 /*
1958 * Even if OWNER is set, there's no harm letting khubd
1959 * see the wPortStatus values (they should all be 0 except
1960 * for PORT_POWER anyway).
1961 */
1962
1963 if (temp & PORT_OWNER)
1964 printk(KERN_ERR "Warning: PORT_OWNER is set\n");
1965
1966 if (temp & PORT_CONNECT) {
1967 status |= 1 << USB_PORT_FEAT_CONNECTION;
1968 /* status may be from integrated TT */
1969 status |= ehci_port_speed(priv, temp);
1970 }
1971 if (temp & PORT_PE)
1972 status |= 1 << USB_PORT_FEAT_ENABLE;
1973 if (temp & (PORT_SUSPEND|PORT_RESUME))
1974 status |= 1 << USB_PORT_FEAT_SUSPEND;
1975 if (temp & PORT_RESET)
1976 status |= 1 << USB_PORT_FEAT_RESET;
1977 if (temp & PORT_POWER)
1978 status |= 1 << USB_PORT_FEAT_POWER;
1979
1980 put_unaligned(cpu_to_le32(status), (__le32 *) buf);
1981 break;
1982 case SetHubFeature:
1983 switch (wValue) {
1984 case C_HUB_LOCAL_POWER:
1985 case C_HUB_OVER_CURRENT:
1986 /* no hub-wide feature/status flags */
1987 break;
1988 default:
1989 goto error;
1990 }
1991 break;
1992 case SetPortFeature:
1993 selector = wIndex >> 8;
1994 wIndex &= 0xff;
1995 if (!wIndex || wIndex > ports)
1996 goto error;
1997 wIndex--;
1998 temp = isp1760_readl(status_reg);
1999 if (temp & PORT_OWNER)
2000 break;
2001
2002/* temp &= ~PORT_RWC_BITS; */
2003 switch (wValue) {
2004 case USB_PORT_FEAT_ENABLE:
2005 isp1760_writel(temp | PORT_PE, status_reg);
2006 break;
2007
2008 case USB_PORT_FEAT_SUSPEND:
2009 if ((temp & PORT_PE) == 0
2010 || (temp & PORT_RESET) != 0)
2011 goto error;
2012
2013 isp1760_writel(temp | PORT_SUSPEND, status_reg);
2014 break;
2015 case USB_PORT_FEAT_POWER:
2016 if (HCS_PPC(priv->hcs_params))
2017 isp1760_writel(temp | PORT_POWER,
2018 status_reg);
2019 break;
2020 case USB_PORT_FEAT_RESET:
2021 if (temp & PORT_RESUME)
2022 goto error;
2023 /* line status bits may report this as low speed,
2024 * which can be fine if this root hub has a
2025 * transaction translator built in.
2026 */
2027 if ((temp & (PORT_PE|PORT_CONNECT)) == PORT_CONNECT
2028 && PORT_USB11(temp)) {
2029 temp |= PORT_OWNER;
2030 } else {
2031 temp |= PORT_RESET;
2032 temp &= ~PORT_PE;
2033
2034 /*
2035 * caller must wait, then call GetPortStatus
2036 * usb 2.0 spec says 50 ms resets on root
2037 */
2038 priv->reset_done = jiffies +
2039 msecs_to_jiffies(50);
2040 }
2041 isp1760_writel(temp, status_reg);
2042 break;
2043 default:
2044 goto error;
2045 }
2046 isp1760_readl(hcd->regs + HC_USBCMD);
2047 break;
2048
2049 default:
2050error:
2051 /* "stall" on error */
2052 retval = -EPIPE;
2053 }
2054 spin_unlock_irqrestore(&priv->lock, flags);
2055 return retval;
2056}
2057
2058static void isp1760_endpoint_disable(struct usb_hcd *usb_hcd,
2059 struct usb_host_endpoint *ep)
2060{
2061 struct isp1760_hcd *priv = hcd_to_priv(usb_hcd);
2062 struct isp1760_qh *qh;
2063 struct isp1760_qtd *qtd;
2064 u32 flags;
2065
2066 spin_lock_irqsave(&priv->lock, flags);
2067 qh = ep->hcpriv;
2068 if (!qh)
2069 goto out;
2070
2071 ep->hcpriv = NULL;
2072 do {
2073 /* more than entry might get removed */
2074 if (list_empty(&qh->qtd_list))
2075 break;
2076
2077 qtd = list_first_entry(&qh->qtd_list, struct isp1760_qtd,
2078 qtd_list);
2079
2080 if (qtd->status & URB_ENQUEUED) {
2081
2082 spin_unlock_irqrestore(&priv->lock, flags);
2083 isp1760_urb_dequeue(usb_hcd, qtd->urb, -ECONNRESET);
2084 spin_lock_irqsave(&priv->lock, flags);
2085 } else {
2086 struct urb *urb;
2087
2088 urb = qtd->urb;
2089 clean_up_qtdlist(qtd);
2090 isp1760_urb_done(priv, urb, -ECONNRESET);
2091 }
2092 } while (1);
2093
2094 qh_destroy(qh);
2095 /* remove requests and leak them.
2096 * ATL are pretty fast done, INT could take a while...
2097 * The latter shoule be removed
2098 */
2099out:
2100 spin_unlock_irqrestore(&priv->lock, flags);
2101}
2102
2103static int isp1760_get_frame(struct usb_hcd *hcd)
2104{
2105 struct isp1760_hcd *priv = hcd_to_priv(hcd);
2106 u32 fr;
2107
2108 fr = isp1760_readl(hcd->regs + HC_FRINDEX);
2109 return (fr >> 3) % priv->periodic_size;
2110}
2111
2112static void isp1760_stop(struct usb_hcd *hcd)
2113{
2114 struct isp1760_hcd *priv = hcd_to_priv(hcd);
2115
2116 isp1760_hub_control(hcd, ClearPortFeature, USB_PORT_FEAT_POWER, 1,
2117 NULL, 0);
2118 mdelay(20);
2119
2120 spin_lock_irq(&priv->lock);
2121 ehci_reset(priv);
2122 /* Disable IRQ */
2123 isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL);
2124 spin_unlock_irq(&priv->lock);
2125
2126 isp1760_writel(0, hcd->regs + HC_CONFIGFLAG);
2127}
2128
2129static void isp1760_shutdown(struct usb_hcd *hcd)
2130{
2131 u32 command;
2132
2133 isp1760_stop(hcd);
2134 isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL);
2135
2136 command = isp1760_readl(hcd->regs + HC_USBCMD);
2137 command &= ~CMD_RUN;
2138 isp1760_writel(command, hcd->regs + HC_USBCMD);
2139}
2140
2141static const struct hc_driver isp1760_hc_driver = {
2142 .description = "isp1760-hcd",
2143 .product_desc = "NXP ISP1760 USB Host Controller",
2144 .hcd_priv_size = sizeof(struct isp1760_hcd),
2145 .irq = isp1760_irq,
2146 .flags = HCD_MEMORY | HCD_USB2,
2147 .reset = isp1760_hc_setup,
2148 .start = isp1760_run,
2149 .stop = isp1760_stop,
2150 .shutdown = isp1760_shutdown,
2151 .urb_enqueue = isp1760_urb_enqueue,
2152 .urb_dequeue = isp1760_urb_dequeue,
2153 .endpoint_disable = isp1760_endpoint_disable,
2154 .get_frame_number = isp1760_get_frame,
2155 .hub_status_data = isp1760_hub_status_data,
2156 .hub_control = isp1760_hub_control,
2157};
2158
2159int __init init_kmem_once(void)
2160{
2161 qtd_cachep = kmem_cache_create("isp1760_qtd",
2162 sizeof(struct isp1760_qtd), 0, SLAB_TEMPORARY |
2163 SLAB_MEM_SPREAD, NULL);
2164
2165 if (!qtd_cachep)
2166 return -ENOMEM;
2167
2168 qh_cachep = kmem_cache_create("isp1760_qh", sizeof(struct isp1760_qh),
2169 0, SLAB_TEMPORARY | SLAB_MEM_SPREAD, NULL);
2170
2171 if (!qh_cachep) {
2172 kmem_cache_destroy(qtd_cachep);
2173 return -ENOMEM;
2174 }
2175
2176 return 0;
2177}
2178
2179void deinit_kmem_cache(void)
2180{
2181 kmem_cache_destroy(qtd_cachep);
2182 kmem_cache_destroy(qh_cachep);
2183}
2184
2185struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq,
2186 u64 irqflags, struct device *dev, const char *busname)
2187{
2188 struct usb_hcd *hcd;
2189 struct isp1760_hcd *priv;
2190 int ret;
2191
2192 if (usb_disabled())
2193 return ERR_PTR(-ENODEV);
2194
2195 /* prevent usb-core allocating DMA pages */
2196 dev->dma_mask = NULL;
2197
2198 hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev->bus_id);
2199 if (!hcd)
2200 return ERR_PTR(-ENOMEM);
2201
2202 priv = hcd_to_priv(hcd);
2203 init_memory(priv);
2204 hcd->regs = ioremap(res_start, res_len);
2205 if (!hcd->regs) {
2206 ret = -EIO;
2207 goto err_put;
2208 }
2209
2210 ret = usb_add_hcd(hcd, irq, irqflags);
2211 if (ret)
2212 goto err_unmap;
2213
2214 hcd->irq = irq;
2215 hcd->rsrc_start = res_start;
2216 hcd->rsrc_len = res_len;
2217
2218 return hcd;
2219
2220err_unmap:
2221 iounmap(hcd->regs);
2222
2223err_put:
2224 usb_put_hcd(hcd);
2225
2226 return ERR_PTR(ret);
2227}
2228
2229MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
2230MODULE_AUTHOR("Sebastian Siewior <bigeasy@linuxtronix.de>");
2231MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
new file mode 100644
index 000000000000..3d86d0f6b147
--- /dev/null
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -0,0 +1,206 @@
1#ifndef _ISP1760_HCD_H_
2#define _ISP1760_HCD_H_
3
4/* exports for if */
5struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq,
6 u64 irqflags, struct device *dev, const char *busname);
7int init_kmem_once(void);
8void deinit_kmem_cache(void);
9
10/* EHCI capability registers */
11#define HC_CAPLENGTH 0x00
12#define HC_HCSPARAMS 0x04
13#define HC_HCCPARAMS 0x08
14
15/* EHCI operational registers */
16#define HC_USBCMD 0x20
17#define HC_USBSTS 0x24
18#define HC_FRINDEX 0x2c
19#define HC_CONFIGFLAG 0x60
20#define HC_PORTSC1 0x64
21#define HC_ISO_PTD_DONEMAP_REG 0x130
22#define HC_ISO_PTD_SKIPMAP_REG 0x134
23#define HC_ISO_PTD_LASTPTD_REG 0x138
24#define HC_INT_PTD_DONEMAP_REG 0x140
25#define HC_INT_PTD_SKIPMAP_REG 0x144
26#define HC_INT_PTD_LASTPTD_REG 0x148
27#define HC_ATL_PTD_DONEMAP_REG 0x150
28#define HC_ATL_PTD_SKIPMAP_REG 0x154
29#define HC_ATL_PTD_LASTPTD_REG 0x158
30
31/* Configuration Register */
32#define HC_HW_MODE_CTRL 0x300
33#define ALL_ATX_RESET (1 << 31)
34#define HW_DATA_BUS_32BIT (1 << 8)
35#define HW_DACK_POL_HIGH (1 << 6)
36#define HW_DREQ_POL_HIGH (1 << 5)
37#define HW_INTR_HIGH_ACT (1 << 2)
38#define HW_INTR_EDGE_TRIG (1 << 1)
39#define HW_GLOBAL_INTR_EN (1 << 0)
40
41#define HC_CHIP_ID_REG 0x304
42#define HC_SCRATCH_REG 0x308
43
44#define HC_RESET_REG 0x30c
45#define SW_RESET_RESET_HC (1 << 1)
46#define SW_RESET_RESET_ALL (1 << 0)
47
48#define HC_BUFFER_STATUS_REG 0x334
49#define ATL_BUFFER 0x1
50#define INT_BUFFER 0x2
51#define ISO_BUFFER 0x4
52#define BUFFER_MAP 0x7
53
54#define HC_MEMORY_REG 0x33c
55#define HC_PORT1_CTRL 0x374
56#define PORT1_POWER (3 << 3)
57#define PORT1_INIT1 (1 << 7)
58#define PORT1_INIT2 (1 << 23)
59
60/* Interrupt Register */
61#define HC_INTERRUPT_REG 0x310
62
63#define HC_INTERRUPT_ENABLE 0x314
64#define INTERRUPT_ENABLE_MASK (HC_INTL_INT | HC_ATL_INT | HC_EOT_INT)
65#define FINAL_HW_CONFIG (HW_GLOBAL_INTR_EN | HW_DATA_BUS_32BIT)
66
67#define HC_ISO_INT (1 << 9)
68#define HC_ATL_INT (1 << 8)
69#define HC_INTL_INT (1 << 7)
70#define HC_EOT_INT (1 << 3)
71#define HC_SOT_INT (1 << 1)
72
73#define HC_ISO_IRQ_MASK_OR_REG 0x318
74#define HC_INT_IRQ_MASK_OR_REG 0x31C
75#define HC_ATL_IRQ_MASK_OR_REG 0x320
76#define HC_ISO_IRQ_MASK_AND_REG 0x324
77#define HC_INT_IRQ_MASK_AND_REG 0x328
78#define HC_ATL_IRQ_MASK_AND_REG 0x32C
79
80/* Register sets */
81#define HC_BEGIN_OF_ATL 0x0c00
82#define HC_BEGIN_OF_INT 0x0800
83#define HC_BEGIN_OF_ISO 0x0400
84#define HC_BEGIN_OF_PAYLOAD 0x1000
85
86/* urb state*/
87#define DELETE_URB (0x0008)
88#define NO_TRANSFER_ACTIVE (0xffffffff)
89
90#define ATL_REGS_OFFSET (0xc00)
91#define INT_REGS_OFFSET (0x800)
92
93/* Philips Transfer Descriptor (PTD) */
94struct ptd {
95 __le32 dw0;
96 __le32 dw1;
97 __le32 dw2;
98 __le32 dw3;
99 __le32 dw4;
100 __le32 dw5;
101 __le32 dw6;
102 __le32 dw7;
103};
104
105struct inter_packet_info {
106 void *data_buffer;
107 u32 payload;
108#define PTD_FIRE_NEXT (1 << 0)
109#define PTD_URB_FINISHED (1 << 1)
110 struct urb *urb;
111 struct isp1760_qh *qh;
112 struct isp1760_qtd *qtd;
113};
114
115
116typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh,
117 struct isp1760_qtd *qtd);
118
119#define isp1760_info(priv, fmt, args...) \
120 dev_info(priv_to_hcd(priv)->self.controller, fmt, ##args)
121
122#define isp1760_err(priv, fmt, args...) \
123 dev_err(priv_to_hcd(priv)->self.controller, fmt, ##args)
124
125/* chip memory management */
126struct memory_chunk {
127 unsigned int start;
128 unsigned int size;
129 unsigned int free;
130};
131
132/*
133 * 60kb divided in:
134 * - 32 blocks @ 256 bytes
135 * - 20 blocks @ 1024 bytes
136 * - 4 blocks @ 8192 bytes
137 */
138
139#define BLOCK_1_NUM 32
140#define BLOCK_2_NUM 20
141#define BLOCK_3_NUM 4
142
143#define BLOCK_1_SIZE 256
144#define BLOCK_2_SIZE 1024
145#define BLOCK_3_SIZE 8192
146#define BLOCKS (BLOCK_1_NUM + BLOCK_2_NUM + BLOCK_3_NUM)
147#define PAYLOAD_SIZE 0xf000
148
149/* I saw if some reloads if the pointer was negative */
150#define ISP1760_NULL_POINTER (0x400)
151
152/* ATL */
153/* DW0 */
154#define PTD_VALID 1
155#define PTD_LENGTH(x) (((u32) x) << 3)
156#define PTD_MAXPACKET(x) (((u32) x) << 18)
157#define PTD_MULTI(x) (((u32) x) << 29)
158#define PTD_ENDPOINT(x) (((u32) x) << 31)
159/* DW1 */
160#define PTD_DEVICE_ADDR(x) (((u32) x) << 3)
161#define PTD_PID_TOKEN(x) (((u32) x) << 10)
162#define PTD_TRANS_BULK ((u32) 2 << 12)
163#define PTD_TRANS_INT ((u32) 3 << 12)
164#define PTD_TRANS_SPLIT ((u32) 1 << 14)
165#define PTD_SE_USB_LOSPEED ((u32) 2 << 16)
166#define PTD_PORT_NUM(x) (((u32) x) << 18)
167#define PTD_HUB_NUM(x) (((u32) x) << 25)
168#define PTD_PING(x) (((u32) x) << 26)
169/* DW2 */
170#define PTD_RL_CNT(x) (((u32) x) << 25)
171#define PTD_DATA_START_ADDR(x) (((u32) x) << 8)
172#define BASE_ADDR 0x1000
173/* DW3 */
174#define PTD_CERR(x) (((u32) x) << 23)
175#define PTD_NAC_CNT(x) (((u32) x) << 19)
176#define PTD_ACTIVE ((u32) 1 << 31)
177#define PTD_DATA_TOGGLE(x) (((u32) x) << 25)
178
179#define DW3_HALT_BIT (1 << 30)
180#define DW3_ERROR_BIT (1 << 28)
181#define DW3_QTD_ACTIVE (1 << 31)
182
183#define INT_UNDERRUN (1 << 2)
184#define INT_BABBLE (1 << 1)
185#define INT_EXACT (1 << 0)
186
187#define DW1_GET_PID(x) (((x) >> 10) & 0x3)
188#define PTD_XFERRED_LENGTH(x) ((x) & 0x7fff)
189#define PTD_XFERRED_LENGTH_LO(x) ((x) & 0x7ff)
190
191#define SETUP_PID (2)
192#define IN_PID (1)
193#define OUT_PID (0)
194#define GET_QTD_TOKEN_TYPE(x) ((x) & 0x3)
195
196#define DATA_TOGGLE (1 << 31)
197#define GET_DATA_TOGGLE(x) ((x) >> 31)
198
199/* Errata 1 */
200#define RL_COUNTER (0)
201#define NAK_COUNTER (0)
202#define ERR_COUNTER (2)
203
204#define HC_ATL_PL_SIZE (8192)
205
206#endif
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
new file mode 100644
index 000000000000..73fb2a38f1e4
--- /dev/null
+++ b/drivers/usb/host/isp1760-if.c
@@ -0,0 +1,298 @@
1/*
2 * Glue code for the ISP1760 driver and bus
3 * Currently there is support for
4 * - OpenFirmware
5 * - PCI
6 *
7 * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
8 *
9 */
10
11#include <linux/usb.h>
12#include <linux/io.h>
13
14#include "../core/hcd.h"
15#include "isp1760-hcd.h"
16
17#ifdef CONFIG_USB_ISP1760_OF
18#include <linux/of.h>
19#include <linux/of_platform.h>
20#endif
21
22#ifdef CONFIG_USB_ISP1760_PCI
23#include <linux/pci.h>
24#endif
25
26#ifdef CONFIG_USB_ISP1760_OF
27static int of_isp1760_probe(struct of_device *dev,
28 const struct of_device_id *match)
29{
30 struct usb_hcd *hcd;
31 struct device_node *dp = dev->node;
32 struct resource *res;
33 struct resource memory;
34 struct of_irq oirq;
35 int virq;
36 u64 res_len;
37 int ret;
38
39 ret = of_address_to_resource(dp, 0, &memory);
40 if (ret)
41 return -ENXIO;
42
43 res = request_mem_region(memory.start, memory.end - memory.start + 1,
44 dev->dev.bus_id);
45 if (!res)
46 return -EBUSY;
47
48 res_len = memory.end - memory.start + 1;
49
50 if (of_irq_map_one(dp, 0, &oirq)) {
51 ret = -ENODEV;
52 goto release_reg;
53 }
54
55 virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
56 oirq.size);
57
58 hcd = isp1760_register(memory.start, res_len, virq,
59 IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id);
60 if (IS_ERR(hcd)) {
61 ret = PTR_ERR(hcd);
62 goto release_reg;
63 }
64
65 dev_set_drvdata(&dev->dev, hcd);
66 return ret;
67
68release_reg:
69 release_mem_region(memory.start, memory.end - memory.start + 1);
70 return ret;
71}
72
73static int of_isp1760_remove(struct of_device *dev)
74{
75 struct usb_hcd *hcd = dev_get_drvdata(&dev->dev);
76
77 dev_set_drvdata(&dev->dev, NULL);
78
79 usb_remove_hcd(hcd);
80 iounmap(hcd->regs);
81 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
82 usb_put_hcd(hcd);
83 return 0;
84}
85
86static struct of_device_id of_isp1760_match[] = {
87 {
88 .compatible = "nxp,usb-isp1760",
89 },
90 { },
91};
92MODULE_DEVICE_TABLE(of, of_isp1760_match);
93
94static struct of_platform_driver isp1760_of_driver = {
95 .name = "nxp-isp1760",
96 .match_table = of_isp1760_match,
97 .probe = of_isp1760_probe,
98 .remove = of_isp1760_remove,
99};
100#endif
101
102#ifdef CONFIG_USB_ISP1760_PCI
103static u32 nxp_pci_io_base;
104static u32 iolength;
105static u32 pci_mem_phy0;
106static u32 length;
107static u8 *chip_addr;
108static u8 *iobase;
109
110static int __devinit isp1761_pci_probe(struct pci_dev *dev,
111 const struct pci_device_id *id)
112{
113 u8 latency, limit;
114 __u32 reg_data;
115 int retry_count;
116 int length;
117 int status = 1;
118 struct usb_hcd *hcd;
119
120 if (usb_disabled())
121 return -ENODEV;
122
123 if (pci_enable_device(dev) < 0)
124 return -ENODEV;
125
126 if (!dev->irq)
127 return -ENODEV;
128
129 /* Grab the PLX PCI mem maped port start address we need */
130 nxp_pci_io_base = pci_resource_start(dev, 0);
131 iolength = pci_resource_len(dev, 0);
132
133 if (!request_mem_region(nxp_pci_io_base, iolength, "ISP1761 IO MEM")) {
134 printk(KERN_ERR "request region #1\n");
135 return -EBUSY;
136 }
137
138 iobase = ioremap_nocache(nxp_pci_io_base, iolength);
139 if (!iobase) {
140 printk(KERN_ERR "ioremap #1\n");
141 release_mem_region(nxp_pci_io_base, iolength);
142 return -ENOMEM;
143 }
144 /* Grab the PLX PCI shared memory of the ISP 1761 we need */
145 pci_mem_phy0 = pci_resource_start(dev, 3);
146 length = pci_resource_len(dev, 3);
147
148 if (length < 0xffff) {
149 printk(KERN_ERR "memory length for this resource is less than "
150 "required\n");
151 release_mem_region(nxp_pci_io_base, iolength);
152 iounmap(iobase);
153 return -ENOMEM;
154 }
155
156 if (!request_mem_region(pci_mem_phy0, length, "ISP-PCI")) {
157 printk(KERN_ERR "host controller already in use\n");
158 release_mem_region(nxp_pci_io_base, iolength);
159 iounmap(iobase);
160 return -EBUSY;
161 }
162
163 /* bad pci latencies can contribute to overruns */
164 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &latency);
165 if (latency) {
166 pci_read_config_byte(dev, PCI_MAX_LAT, &limit);
167 if (limit && limit < latency)
168 pci_write_config_byte(dev, PCI_LATENCY_TIMER, limit);
169 }
170
171 /* Try to check whether we can access Scratch Register of
172 * Host Controller or not. The initial PCI access is retried until
173 * local init for the PCI bridge is completed
174 */
175 retry_count = 20;
176 reg_data = 0;
177 while ((reg_data != 0xFACE) && retry_count) {
178 /*by default host is in 16bit mode, so
179 * io operations at this stage must be 16 bit
180 * */
181 writel(0xface, chip_addr + HC_SCRATCH_REG);
182 udelay(100);
183 reg_data = readl(chip_addr + HC_SCRATCH_REG);
184 retry_count--;
185 }
186
187 /* Host Controller presence is detected by writing to scratch register
188 * and reading back and checking the contents are same or not
189 */
190 if (reg_data != 0xFACE) {
191 err("scratch register mismatch %x", reg_data);
192 goto clean;
193 }
194
195 pci_set_master(dev);
196
197 status = readl(iobase + 0x68);
198 status |= 0x900;
199 writel(status, iobase + 0x68);
200
201 dev->dev.dma_mask = NULL;
202 hcd = isp1760_register(pci_mem_phy0, length, dev->irq,
203 IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id);
204 pci_set_drvdata(dev, hcd);
205 if (!hcd)
206 return 0;
207clean:
208 status = -ENODEV;
209 iounmap(iobase);
210 release_mem_region(pci_mem_phy0, length);
211 release_mem_region(nxp_pci_io_base, iolength);
212 return status;
213}
214static void isp1761_pci_remove(struct pci_dev *dev)
215{
216 struct usb_hcd *hcd;
217
218 hcd = pci_get_drvdata(dev);
219
220 usb_remove_hcd(hcd);
221 iounmap(hcd->regs);
222 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
223 usb_put_hcd(hcd);
224
225 pci_disable_device(dev);
226
227 iounmap(iobase);
228 iounmap(chip_addr);
229
230 release_mem_region(nxp_pci_io_base, iolength);
231 release_mem_region(pci_mem_phy0, length);
232}
233
234static void isp1761_pci_shutdown(struct pci_dev *dev)
235{
236 printk(KERN_ERR "ips1761_pci_shutdown\n");
237}
238
239static const struct pci_device_id isp1760_plx [] = { {
240 /* handle any USB 2.0 EHCI controller */
241 PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_OTHER << 8) | (0x06 << 16)), ~0),
242 .driver_data = 0,
243},
244{ /* end: all zeroes */ }
245};
246MODULE_DEVICE_TABLE(pci, isp1760_plx);
247
248static struct pci_driver isp1761_pci_driver = {
249 .name = "isp1760",
250 .id_table = isp1760_plx,
251 .probe = isp1761_pci_probe,
252 .remove = isp1761_pci_remove,
253 .shutdown = isp1761_pci_shutdown,
254};
255#endif
256
257static int __init isp1760_init(void)
258{
259 int ret;
260
261 init_kmem_once();
262
263#ifdef CONFIG_USB_ISP1760_OF
264 ret = of_register_platform_driver(&isp1760_of_driver);
265 if (ret) {
266 deinit_kmem_cache();
267 return ret;
268 }
269#endif
270#ifdef CONFIG_USB_ISP1760_PCI
271 ret = pci_register_driver(&isp1761_pci_driver);
272 if (ret)
273 goto unreg_of;
274#endif
275 return ret;
276
277#ifdef CONFIG_USB_ISP1760_PCI
278unreg_of:
279#endif
280#ifdef CONFIG_USB_ISP1760_OF
281 of_unregister_platform_driver(&isp1760_of_driver);
282#endif
283 deinit_kmem_cache();
284 return ret;
285}
286module_init(isp1760_init);
287
288static void __exit isp1760_exit(void)
289{
290#ifdef CONFIG_USB_ISP1760_OF
291 of_unregister_platform_driver(&isp1760_of_driver);
292#endif
293#ifdef CONFIG_USB_ISP1760_PCI
294 pci_unregister_driver(&isp1761_pci_driver);
295#endif
296 deinit_kmem_cache();
297}
298module_exit(isp1760_exit);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 17dc2eccda83..79a78029f896 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -613,7 +613,7 @@ static void start_hnp(struct ohci_hcd *ohci);
613static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port) 613static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port)
614{ 614{
615 __hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port]; 615 __hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port];
616 u32 temp; 616 u32 temp = 0;
617 u16 now = ohci_readl(ohci, &ohci->regs->fmnumber); 617 u16 now = ohci_readl(ohci, &ohci->regs->fmnumber);
618 u16 reset_done = now + PORT_RESET_MSEC; 618 u16 reset_done = now + PORT_RESET_MSEC;
619 int limit_1 = DIV_ROUND_UP(PORT_RESET_MSEC, PORT_RESET_HW_MSEC); 619 int limit_1 = DIV_ROUND_UP(PORT_RESET_MSEC, PORT_RESET_HW_MSEC);
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index d3e0d8aa3980..3a7bfe7a8874 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -234,7 +234,7 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
234 return 0; 234 return 0;
235} 235}
236 236
237static int remote_wakeup_is_broken(struct uhci_hcd *uhci) 237static int global_suspend_mode_is_broken(struct uhci_hcd *uhci)
238{ 238{
239 int port; 239 int port;
240 const char *sys_info; 240 const char *sys_info;
@@ -261,27 +261,60 @@ __releases(uhci->lock)
261__acquires(uhci->lock) 261__acquires(uhci->lock)
262{ 262{
263 int auto_stop; 263 int auto_stop;
264 int int_enable, egsm_enable; 264 int int_enable, egsm_enable, wakeup_enable;
265 struct usb_device *rhdev = uhci_to_hcd(uhci)->self.root_hub; 265 struct usb_device *rhdev = uhci_to_hcd(uhci)->self.root_hub;
266 266
267 auto_stop = (new_state == UHCI_RH_AUTO_STOPPED); 267 auto_stop = (new_state == UHCI_RH_AUTO_STOPPED);
268 dev_dbg(&rhdev->dev, "%s%s\n", __func__, 268 dev_dbg(&rhdev->dev, "%s%s\n", __func__,
269 (auto_stop ? " (auto-stop)" : "")); 269 (auto_stop ? " (auto-stop)" : ""));
270 270
271 /* Enable resume-detect interrupts if they work. 271 /* Start off by assuming Resume-Detect interrupts and EGSM work
272 * Then enter Global Suspend mode if _it_ works, still configured. 272 * and that remote wakeups should be enabled.
273 */ 273 */
274 egsm_enable = USBCMD_EGSM; 274 egsm_enable = USBCMD_EGSM;
275 uhci->working_RD = 1; 275 uhci->RD_enable = 1;
276 int_enable = USBINTR_RESUME; 276 int_enable = USBINTR_RESUME;
277 if (remote_wakeup_is_broken(uhci)) 277 wakeup_enable = 1;
278 egsm_enable = 0; 278
279 if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable || 279 /* In auto-stop mode wakeups must always be detected, but
280 * Resume-Detect interrupts may be prohibited. (In the absence
281 * of CONFIG_PM, they are always disallowed.)
282 */
283 if (auto_stop) {
284 if (!device_may_wakeup(&rhdev->dev))
285 int_enable = 0;
286
287 /* In bus-suspend mode wakeups may be disabled, but if they are
288 * allowed then so are Resume-Detect interrupts.
289 */
290 } else {
280#ifdef CONFIG_PM 291#ifdef CONFIG_PM
281 (!auto_stop && !rhdev->do_remote_wakeup) || 292 if (!rhdev->do_remote_wakeup)
293 wakeup_enable = 0;
282#endif 294#endif
283 (auto_stop && !device_may_wakeup(&rhdev->dev))) 295 }
284 uhci->working_RD = int_enable = 0; 296
297 /* EGSM causes the root hub to echo a 'K' signal (resume) out any
298 * port which requests a remote wakeup. According to the USB spec,
299 * every hub is supposed to do this. But if we are ignoring
300 * remote-wakeup requests anyway then there's no point to it.
301 * We also shouldn't enable EGSM if it's broken.
302 */
303 if (!wakeup_enable || global_suspend_mode_is_broken(uhci))
304 egsm_enable = 0;
305
306 /* If we're ignoring wakeup events then there's no reason to
307 * enable Resume-Detect interrupts. We also shouldn't enable
308 * them if they are broken or disallowed.
309 *
310 * This logic may lead us to enabling RD but not EGSM. The UHCI
311 * spec foolishly says that RD works only when EGSM is on, but
312 * there's no harm in enabling it anyway -- perhaps some chips
313 * will implement it!
314 */
315 if (!wakeup_enable || resume_detect_interrupts_are_broken(uhci) ||
316 !int_enable)
317 uhci->RD_enable = int_enable = 0;
285 318
286 outw(int_enable, uhci->io_addr + USBINTR); 319 outw(int_enable, uhci->io_addr + USBINTR);
287 outw(egsm_enable | USBCMD_CF, uhci->io_addr + USBCMD); 320 outw(egsm_enable | USBCMD_CF, uhci->io_addr + USBCMD);
@@ -308,7 +341,11 @@ __acquires(uhci->lock)
308 341
309 uhci->rh_state = new_state; 342 uhci->rh_state = new_state;
310 uhci->is_stopped = UHCI_IS_STOPPED; 343 uhci->is_stopped = UHCI_IS_STOPPED;
311 uhci_to_hcd(uhci)->poll_rh = !int_enable; 344
345 /* If interrupts don't work and remote wakeup is enabled then
346 * the suspended root hub needs to be polled.
347 */
348 uhci_to_hcd(uhci)->poll_rh = (!int_enable && wakeup_enable);
312 349
313 uhci_scan_schedule(uhci); 350 uhci_scan_schedule(uhci);
314 uhci_fsbr_off(uhci); 351 uhci_fsbr_off(uhci);
@@ -344,9 +381,12 @@ __acquires(uhci->lock)
344 * for 20 ms. 381 * for 20 ms.
345 */ 382 */
346 if (uhci->rh_state == UHCI_RH_SUSPENDED) { 383 if (uhci->rh_state == UHCI_RH_SUSPENDED) {
384 unsigned egsm;
385
386 /* Keep EGSM on if it was set before */
387 egsm = inw(uhci->io_addr + USBCMD) & USBCMD_EGSM;
347 uhci->rh_state = UHCI_RH_RESUMING; 388 uhci->rh_state = UHCI_RH_RESUMING;
348 outw(USBCMD_FGR | USBCMD_EGSM | USBCMD_CF, 389 outw(USBCMD_FGR | USBCMD_CF | egsm, uhci->io_addr + USBCMD);
349 uhci->io_addr + USBCMD);
350 spin_unlock_irq(&uhci->lock); 390 spin_unlock_irq(&uhci->lock);
351 msleep(20); 391 msleep(20);
352 spin_lock_irq(&uhci->lock); 392 spin_lock_irq(&uhci->lock);
@@ -801,8 +841,10 @@ static int uhci_pci_resume(struct usb_hcd *hcd)
801 841
802 spin_unlock_irq(&uhci->lock); 842 spin_unlock_irq(&uhci->lock);
803 843
804 if (!uhci->working_RD) { 844 /* If interrupts don't work and remote wakeup is enabled then
805 /* Suspended root hub needs to be polled */ 845 * the suspended root hub needs to be polled.
846 */
847 if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup) {
806 hcd->poll_rh = 1; 848 hcd->poll_rh = 1;
807 usb_hcd_poll_rh_status(hcd); 849 usb_hcd_poll_rh_status(hcd);
808 } 850 }
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 340d6ed3e6e9..7d01c5677f92 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -400,8 +400,9 @@ struct uhci_hcd {
400 unsigned int scan_in_progress:1; /* Schedule scan is running */ 400 unsigned int scan_in_progress:1; /* Schedule scan is running */
401 unsigned int need_rescan:1; /* Redo the schedule scan */ 401 unsigned int need_rescan:1; /* Redo the schedule scan */
402 unsigned int dead:1; /* Controller has died */ 402 unsigned int dead:1; /* Controller has died */
403 unsigned int working_RD:1; /* Suspended root hub doesn't 403 unsigned int RD_enable:1; /* Suspended root hub with
404 need to be polled */ 404 Resume-Detect interrupts
405 enabled */
405 unsigned int is_initialized:1; /* Data structure is usable */ 406 unsigned int is_initialized:1; /* Data structure is usable */
406 unsigned int fsbr_is_on:1; /* FSBR is turned on */ 407 unsigned int fsbr_is_on:1; /* FSBR is turned on */
407 unsigned int fsbr_is_wanted:1; /* Does any URB want FSBR? */ 408 unsigned int fsbr_is_wanted:1; /* Does any URB want FSBR? */
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index 11580e81e2c6..7aafd53fbcab 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -148,7 +148,7 @@ MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum interrupt out interval in
148 148
149/* Structure to hold all of our device specific stuff */ 149/* Structure to hold all of our device specific stuff */
150struct ld_usb { 150struct ld_usb {
151 struct semaphore sem; /* locks this structure */ 151 struct mutex mutex; /* locks this structure */
152 struct usb_interface* intf; /* save off the usb interface pointer */ 152 struct usb_interface* intf; /* save off the usb interface pointer */
153 153
154 int open_count; /* number of times this port has been opened */ 154 int open_count; /* number of times this port has been opened */
@@ -319,7 +319,7 @@ static int ld_usb_open(struct inode *inode, struct file *file)
319 return -ENODEV; 319 return -ENODEV;
320 320
321 /* lock this device */ 321 /* lock this device */
322 if (down_interruptible(&dev->sem)) 322 if (mutex_lock_interruptible(&dev->mutex))
323 return -ERESTARTSYS; 323 return -ERESTARTSYS;
324 324
325 /* allow opening only once */ 325 /* allow opening only once */
@@ -358,7 +358,7 @@ static int ld_usb_open(struct inode *inode, struct file *file)
358 file->private_data = dev; 358 file->private_data = dev;
359 359
360unlock_exit: 360unlock_exit:
361 up(&dev->sem); 361 mutex_unlock(&dev->mutex);
362 362
363 return retval; 363 return retval;
364} 364}
@@ -378,7 +378,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
378 goto exit; 378 goto exit;
379 } 379 }
380 380
381 if (down_interruptible(&dev->sem)) { 381 if (mutex_lock_interruptible(&dev->mutex)) {
382 retval = -ERESTARTSYS; 382 retval = -ERESTARTSYS;
383 goto exit; 383 goto exit;
384 } 384 }
@@ -389,7 +389,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
389 } 389 }
390 if (dev->intf == NULL) { 390 if (dev->intf == NULL) {
391 /* the device was unplugged before the file was released */ 391 /* the device was unplugged before the file was released */
392 up(&dev->sem); 392 mutex_unlock(&dev->mutex);
393 /* unlock here as ld_usb_delete frees dev */ 393 /* unlock here as ld_usb_delete frees dev */
394 ld_usb_delete(dev); 394 ld_usb_delete(dev);
395 goto exit; 395 goto exit;
@@ -402,7 +402,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
402 dev->open_count = 0; 402 dev->open_count = 0;
403 403
404unlock_exit: 404unlock_exit:
405 up(&dev->sem); 405 mutex_unlock(&dev->mutex);
406 406
407exit: 407exit:
408 return retval; 408 return retval;
@@ -448,7 +448,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
448 goto exit; 448 goto exit;
449 449
450 /* lock this object */ 450 /* lock this object */
451 if (down_interruptible(&dev->sem)) { 451 if (mutex_lock_interruptible(&dev->mutex)) {
452 retval = -ERESTARTSYS; 452 retval = -ERESTARTSYS;
453 goto exit; 453 goto exit;
454 } 454 }
@@ -505,7 +505,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
505 505
506unlock_exit: 506unlock_exit:
507 /* unlock the device */ 507 /* unlock the device */
508 up(&dev->sem); 508 mutex_unlock(&dev->mutex);
509 509
510exit: 510exit:
511 return retval; 511 return retval;
@@ -528,7 +528,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
528 goto exit; 528 goto exit;
529 529
530 /* lock this object */ 530 /* lock this object */
531 if (down_interruptible(&dev->sem)) { 531 if (mutex_lock_interruptible(&dev->mutex)) {
532 retval = -ERESTARTSYS; 532 retval = -ERESTARTSYS;
533 goto exit; 533 goto exit;
534 } 534 }
@@ -602,7 +602,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
602 602
603unlock_exit: 603unlock_exit:
604 /* unlock the device */ 604 /* unlock the device */
605 up(&dev->sem); 605 mutex_unlock(&dev->mutex);
606 606
607exit: 607exit:
608 return retval; 608 return retval;
@@ -651,7 +651,7 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *
651 dev_err(&intf->dev, "Out of memory\n"); 651 dev_err(&intf->dev, "Out of memory\n");
652 goto exit; 652 goto exit;
653 } 653 }
654 init_MUTEX(&dev->sem); 654 mutex_init(&dev->mutex);
655 spin_lock_init(&dev->rbsl); 655 spin_lock_init(&dev->rbsl);
656 dev->intf = intf; 656 dev->intf = intf;
657 init_waitqueue_head(&dev->read_wait); 657 init_waitqueue_head(&dev->read_wait);
@@ -765,15 +765,15 @@ static void ld_usb_disconnect(struct usb_interface *intf)
765 /* give back our minor */ 765 /* give back our minor */
766 usb_deregister_dev(intf, &ld_usb_class); 766 usb_deregister_dev(intf, &ld_usb_class);
767 767
768 down(&dev->sem); 768 mutex_lock(&dev->mutex);
769 769
770 /* if the device is not opened, then we clean up right now */ 770 /* if the device is not opened, then we clean up right now */
771 if (!dev->open_count) { 771 if (!dev->open_count) {
772 up(&dev->sem); 772 mutex_unlock(&dev->mutex);
773 ld_usb_delete(dev); 773 ld_usb_delete(dev);
774 } else { 774 } else {
775 dev->intf = NULL; 775 dev->intf = NULL;
776 up(&dev->sem); 776 mutex_unlock(&dev->mutex);
777 } 777 }
778 778
779 dev_info(&intf->dev, "LD USB Device #%d now disconnected\n", 779 dev_info(&intf->dev, "LD USB Device #%d now disconnected\n",
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index a51983854ca0..742be3c35947 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -79,30 +79,10 @@ static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
79/* set up all urbs so they can be used with either bulk or interrupt */ 79/* set up all urbs so they can be used with either bulk or interrupt */
80#define INTERRUPT_RATE 1 /* msec/transfer */ 80#define INTERRUPT_RATE 1 /* msec/transfer */
81 81
82#define xprintk(tdev,level,fmt,args...) \ 82#define ERROR(tdev, fmt, args...) \
83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args) 83 dev_err(&(tdev)->intf->dev , fmt , ## args)
84 84#define WARN(tdev, fmt, args...) \
85#ifdef DEBUG 85 dev_warn(&(tdev)->intf->dev , fmt , ## args)
86#define DBG(dev,fmt,args...) \
87 xprintk(dev , KERN_DEBUG , fmt , ## args)
88#else
89#define DBG(dev,fmt,args...) \
90 do { } while (0)
91#endif /* DEBUG */
92
93#ifdef VERBOSE
94#define VDBG DBG
95#else
96#define VDBG(dev,fmt,args...) \
97 do { } while (0)
98#endif /* VERBOSE */
99
100#define ERROR(dev,fmt,args...) \
101 xprintk(dev , KERN_ERR , fmt , ## args)
102#define WARN(dev,fmt,args...) \
103 xprintk(dev , KERN_WARNING , fmt , ## args)
104#define INFO(dev,fmt,args...) \
105 xprintk(dev , KERN_INFO , fmt , ## args)
106 86
107/*-------------------------------------------------------------------------*/ 87/*-------------------------------------------------------------------------*/
108 88
@@ -236,7 +216,7 @@ static struct urb *simple_alloc_urb (
236 216
237static unsigned pattern = 0; 217static unsigned pattern = 0;
238module_param (pattern, uint, S_IRUGO); 218module_param (pattern, uint, S_IRUGO);
239// MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); 219MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)");
240 220
241static inline void simple_fill_buf (struct urb *urb) 221static inline void simple_fill_buf (struct urb *urb)
242{ 222{
@@ -257,7 +237,7 @@ static inline void simple_fill_buf (struct urb *urb)
257 } 237 }
258} 238}
259 239
260static inline int simple_check_buf (struct urb *urb) 240static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
261{ 241{
262 unsigned i; 242 unsigned i;
263 u8 expected; 243 u8 expected;
@@ -285,7 +265,7 @@ static inline int simple_check_buf (struct urb *urb)
285 } 265 }
286 if (*buf == expected) 266 if (*buf == expected)
287 continue; 267 continue;
288 dbg ("buf[%d] = %d (not %d)", i, *buf, expected); 268 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
289 return -EINVAL; 269 return -EINVAL;
290 } 270 }
291 return 0; 271 return 0;
@@ -299,6 +279,7 @@ static void simple_free_urb (struct urb *urb)
299} 279}
300 280
301static int simple_io ( 281static int simple_io (
282 struct usbtest_dev *tdev,
302 struct urb *urb, 283 struct urb *urb,
303 int iterations, 284 int iterations,
304 int vary, 285 int vary,
@@ -324,7 +305,7 @@ static int simple_io (
324 retval = urb->status; 305 retval = urb->status;
325 urb->dev = udev; 306 urb->dev = udev;
326 if (retval == 0 && usb_pipein (urb->pipe)) 307 if (retval == 0 && usb_pipein (urb->pipe))
327 retval = simple_check_buf (urb); 308 retval = simple_check_buf(tdev, urb);
328 309
329 if (vary) { 310 if (vary) {
330 int len = urb->transfer_buffer_length; 311 int len = urb->transfer_buffer_length;
@@ -341,7 +322,7 @@ static int simple_io (
341 urb->transfer_buffer_length = max; 322 urb->transfer_buffer_length = max;
342 323
343 if (expected != retval) 324 if (expected != retval)
344 dev_dbg (&udev->dev, 325 dev_err(&udev->dev,
345 "%s failed, iterations left %d, status %d (not %d)\n", 326 "%s failed, iterations left %d, status %d (not %d)\n",
346 label, iterations, retval, expected); 327 label, iterations, retval, expected);
347 return retval; 328 return retval;
@@ -357,7 +338,7 @@ static int simple_io (
357static void free_sglist (struct scatterlist *sg, int nents) 338static void free_sglist (struct scatterlist *sg, int nents)
358{ 339{
359 unsigned i; 340 unsigned i;
360 341
361 if (!sg) 342 if (!sg)
362 return; 343 return;
363 for (i = 0; i < nents; i++) { 344 for (i = 0; i < nents; i++) {
@@ -415,7 +396,7 @@ alloc_sglist (int nents, int max, int vary)
415} 396}
416 397
417static int perform_sglist ( 398static int perform_sglist (
418 struct usb_device *udev, 399 struct usbtest_dev *tdev,
419 unsigned iterations, 400 unsigned iterations,
420 int pipe, 401 int pipe,
421 struct usb_sg_request *req, 402 struct usb_sg_request *req,
@@ -423,6 +404,7 @@ static int perform_sglist (
423 int nents 404 int nents
424) 405)
425{ 406{
407 struct usb_device *udev = testdev_to_usbdev(tdev);
426 int retval = 0; 408 int retval = 0;
427 409
428 while (retval == 0 && iterations-- > 0) { 410 while (retval == 0 && iterations-- > 0) {
@@ -431,7 +413,7 @@ static int perform_sglist (
431 ? (INTERRUPT_RATE << 3) 413 ? (INTERRUPT_RATE << 3)
432 : INTERRUPT_RATE, 414 : INTERRUPT_RATE,
433 sg, nents, 0, GFP_KERNEL); 415 sg, nents, 0, GFP_KERNEL);
434 416
435 if (retval) 417 if (retval)
436 break; 418 break;
437 usb_sg_wait (req); 419 usb_sg_wait (req);
@@ -446,7 +428,8 @@ static int perform_sglist (
446 // failure if retval is as we expected ... 428 // failure if retval is as we expected ...
447 429
448 if (retval) 430 if (retval)
449 dbg ("perform_sglist failed, iterations left %d, status %d", 431 ERROR(tdev, "perform_sglist failed, "
432 "iterations left %d, status %d\n",
450 iterations, retval); 433 iterations, retval);
451 return retval; 434 return retval;
452} 435}
@@ -505,28 +488,28 @@ static int set_altsetting (struct usbtest_dev *dev, int alternate)
505 alternate); 488 alternate);
506} 489}
507 490
508static int is_good_config (char *buf, int len) 491static int is_good_config(struct usbtest_dev *tdev, int len)
509{ 492{
510 struct usb_config_descriptor *config; 493 struct usb_config_descriptor *config;
511 494
512 if (len < sizeof *config) 495 if (len < sizeof *config)
513 return 0; 496 return 0;
514 config = (struct usb_config_descriptor *) buf; 497 config = (struct usb_config_descriptor *) tdev->buf;
515 498
516 switch (config->bDescriptorType) { 499 switch (config->bDescriptorType) {
517 case USB_DT_CONFIG: 500 case USB_DT_CONFIG:
518 case USB_DT_OTHER_SPEED_CONFIG: 501 case USB_DT_OTHER_SPEED_CONFIG:
519 if (config->bLength != 9) { 502 if (config->bLength != 9) {
520 dbg ("bogus config descriptor length"); 503 ERROR(tdev, "bogus config descriptor length\n");
521 return 0; 504 return 0;
522 } 505 }
523 /* this bit 'must be 1' but often isn't */ 506 /* this bit 'must be 1' but often isn't */
524 if (!realworld && !(config->bmAttributes & 0x80)) { 507 if (!realworld && !(config->bmAttributes & 0x80)) {
525 dbg ("high bit of config attributes not set"); 508 ERROR(tdev, "high bit of config attributes not set\n");
526 return 0; 509 return 0;
527 } 510 }
528 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 511 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
529 dbg ("reserved config bits set"); 512 ERROR(tdev, "reserved config bits set\n");
530 return 0; 513 return 0;
531 } 514 }
532 break; 515 break;
@@ -538,7 +521,7 @@ static int is_good_config (char *buf, int len)
538 return 1; 521 return 1;
539 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 522 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
540 return 1; 523 return 1;
541 dbg ("bogus config descriptor read size"); 524 ERROR(tdev, "bogus config descriptor read size\n");
542 return 0; 525 return 0;
543} 526}
544 527
@@ -571,7 +554,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
571 /* 9.2.3 constrains the range here */ 554 /* 9.2.3 constrains the range here */
572 alt = iface->altsetting [i].desc.bAlternateSetting; 555 alt = iface->altsetting [i].desc.bAlternateSetting;
573 if (alt < 0 || alt >= iface->num_altsetting) { 556 if (alt < 0 || alt >= iface->num_altsetting) {
574 dev_dbg (&iface->dev, 557 dev_err(&iface->dev,
575 "invalid alt [%d].bAltSetting = %d\n", 558 "invalid alt [%d].bAltSetting = %d\n",
576 i, alt); 559 i, alt);
577 } 560 }
@@ -583,7 +566,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
583 /* [9.4.10] set_interface */ 566 /* [9.4.10] set_interface */
584 retval = set_altsetting (dev, alt); 567 retval = set_altsetting (dev, alt);
585 if (retval) { 568 if (retval) {
586 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", 569 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
587 alt, retval); 570 alt, retval);
588 return retval; 571 return retval;
589 } 572 }
@@ -591,7 +574,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
591 /* [9.4.4] get_interface always works */ 574 /* [9.4.4] get_interface always works */
592 retval = get_altsetting (dev); 575 retval = get_altsetting (dev);
593 if (retval != alt) { 576 if (retval != alt) {
594 dev_dbg (&iface->dev, "get alt should be %d, was %d\n", 577 dev_err(&iface->dev, "get alt should be %d, was %d\n",
595 alt, retval); 578 alt, retval);
596 return (retval < 0) ? retval : -EDOM; 579 return (retval < 0) ? retval : -EDOM;
597 } 580 }
@@ -611,7 +594,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
611 USB_DIR_IN | USB_RECIP_DEVICE, 594 USB_DIR_IN | USB_RECIP_DEVICE,
612 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 595 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
613 if (retval != 1 || dev->buf [0] != expected) { 596 if (retval != 1 || dev->buf [0] != expected) {
614 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", 597 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
615 retval, dev->buf[0], expected); 598 retval, dev->buf[0], expected);
616 return (retval < 0) ? retval : -EDOM; 599 return (retval < 0) ? retval : -EDOM;
617 } 600 }
@@ -621,7 +604,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
621 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 604 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
622 dev->buf, sizeof udev->descriptor); 605 dev->buf, sizeof udev->descriptor);
623 if (retval != sizeof udev->descriptor) { 606 if (retval != sizeof udev->descriptor) {
624 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); 607 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
625 return (retval < 0) ? retval : -EDOM; 608 return (retval < 0) ? retval : -EDOM;
626 } 609 }
627 610
@@ -629,8 +612,8 @@ static int ch9_postconfig (struct usbtest_dev *dev)
629 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 612 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
630 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 613 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
631 dev->buf, TBUF_SIZE); 614 dev->buf, TBUF_SIZE);
632 if (!is_good_config (dev->buf, retval)) { 615 if (!is_good_config(dev, retval)) {
633 dev_dbg (&iface->dev, 616 dev_err(&iface->dev,
634 "config [%d] descriptor --> %d\n", 617 "config [%d] descriptor --> %d\n",
635 i, retval); 618 i, retval);
636 return (retval < 0) ? retval : -EDOM; 619 return (retval < 0) ? retval : -EDOM;
@@ -650,14 +633,14 @@ static int ch9_postconfig (struct usbtest_dev *dev)
650 sizeof (struct usb_qualifier_descriptor)); 633 sizeof (struct usb_qualifier_descriptor));
651 if (retval == -EPIPE) { 634 if (retval == -EPIPE) {
652 if (udev->speed == USB_SPEED_HIGH) { 635 if (udev->speed == USB_SPEED_HIGH) {
653 dev_dbg (&iface->dev, 636 dev_err(&iface->dev,
654 "hs dev qualifier --> %d\n", 637 "hs dev qualifier --> %d\n",
655 retval); 638 retval);
656 return (retval < 0) ? retval : -EDOM; 639 return (retval < 0) ? retval : -EDOM;
657 } 640 }
658 /* usb2.0 but not high-speed capable; fine */ 641 /* usb2.0 but not high-speed capable; fine */
659 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 642 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
660 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); 643 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
661 return (retval < 0) ? retval : -EDOM; 644 return (retval < 0) ? retval : -EDOM;
662 } else 645 } else
663 d = (struct usb_qualifier_descriptor *) dev->buf; 646 d = (struct usb_qualifier_descriptor *) dev->buf;
@@ -669,8 +652,8 @@ static int ch9_postconfig (struct usbtest_dev *dev)
669 retval = usb_get_descriptor (udev, 652 retval = usb_get_descriptor (udev,
670 USB_DT_OTHER_SPEED_CONFIG, i, 653 USB_DT_OTHER_SPEED_CONFIG, i,
671 dev->buf, TBUF_SIZE); 654 dev->buf, TBUF_SIZE);
672 if (!is_good_config (dev->buf, retval)) { 655 if (!is_good_config(dev, retval)) {
673 dev_dbg (&iface->dev, 656 dev_err(&iface->dev,
674 "other speed config --> %d\n", 657 "other speed config --> %d\n",
675 retval); 658 retval);
676 return (retval < 0) ? retval : -EDOM; 659 return (retval < 0) ? retval : -EDOM;
@@ -683,7 +666,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
683 /* [9.4.5] get_status always works */ 666 /* [9.4.5] get_status always works */
684 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 667 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
685 if (retval != 2) { 668 if (retval != 2) {
686 dev_dbg (&iface->dev, "get dev status --> %d\n", retval); 669 dev_err(&iface->dev, "get dev status --> %d\n", retval);
687 return (retval < 0) ? retval : -EDOM; 670 return (retval < 0) ? retval : -EDOM;
688 } 671 }
689 672
@@ -693,11 +676,11 @@ static int ch9_postconfig (struct usbtest_dev *dev)
693 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 676 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
694 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 677 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
695 if (retval != 2) { 678 if (retval != 2) {
696 dev_dbg (&iface->dev, "get interface status --> %d\n", retval); 679 dev_err(&iface->dev, "get interface status --> %d\n", retval);
697 return (retval < 0) ? retval : -EDOM; 680 return (retval < 0) ? retval : -EDOM;
698 } 681 }
699 // FIXME get status for each endpoint in the interface 682 // FIXME get status for each endpoint in the interface
700 683
701 return 0; 684 return 0;
702} 685}
703 686
@@ -752,8 +735,9 @@ static void ctrl_complete (struct urb *urb)
752 */ 735 */
753 if (subcase->number > 0) { 736 if (subcase->number > 0) {
754 if ((subcase->number - ctx->last) != 1) { 737 if ((subcase->number - ctx->last) != 1) {
755 dbg ("subcase %d completed out of order, last %d", 738 ERROR(ctx->dev,
756 subcase->number, ctx->last); 739 "subcase %d completed out of order, last %d\n",
740 subcase->number, ctx->last);
757 status = -EDOM; 741 status = -EDOM;
758 ctx->last = subcase->number; 742 ctx->last = subcase->number;
759 goto error; 743 goto error;
@@ -777,7 +761,7 @@ static void ctrl_complete (struct urb *urb)
777 else if (subcase->number == 12 && status == -EPIPE) 761 else if (subcase->number == 12 && status == -EPIPE)
778 status = 0; 762 status = 0;
779 else 763 else
780 dbg ("subtest %d error, status %d", 764 ERROR(ctx->dev, "subtest %d error, status %d\n",
781 subcase->number, status); 765 subcase->number, status);
782 } 766 }
783 767
@@ -788,9 +772,12 @@ error:
788 int i; 772 int i;
789 773
790 ctx->status = status; 774 ctx->status = status;
791 info ("control queue %02x.%02x, err %d, %d left", 775 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
776 "%d left, subcase %d, len %d/%d\n",
792 reqp->bRequestType, reqp->bRequest, 777 reqp->bRequestType, reqp->bRequest,
793 status, ctx->count); 778 status, ctx->count, subcase->number,
779 urb->actual_length,
780 urb->transfer_buffer_length);
794 781
795 /* FIXME this "unlink everything" exit route should 782 /* FIXME this "unlink everything" exit route should
796 * be a separate test case. 783 * be a separate test case.
@@ -799,7 +786,8 @@ error:
799 /* unlink whatever's still pending */ 786 /* unlink whatever's still pending */
800 for (i = 1; i < ctx->param->sglen; i++) { 787 for (i = 1; i < ctx->param->sglen; i++) {
801 struct urb *u = ctx->urb [ 788 struct urb *u = ctx->urb [
802 (i + subcase->number) % ctx->param->sglen]; 789 (i + subcase->number)
790 % ctx->param->sglen];
803 791
804 if (u == urb || !u->dev) 792 if (u == urb || !u->dev)
805 continue; 793 continue;
@@ -812,7 +800,8 @@ error:
812 case -EIDRM: 800 case -EIDRM:
813 continue; 801 continue;
814 default: 802 default:
815 dbg ("urb unlink --> %d", status); 803 ERROR(ctx->dev, "urb unlink --> %d\n",
804 status);
816 } 805 }
817 } 806 }
818 status = ctx->status; 807 status = ctx->status;
@@ -822,14 +811,15 @@ error:
822 /* resubmit if we need to, else mark this as done */ 811 /* resubmit if we need to, else mark this as done */
823 if ((status == 0) && (ctx->pending < ctx->count)) { 812 if ((status == 0) && (ctx->pending < ctx->count)) {
824 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { 813 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
825 dbg ("can't resubmit ctrl %02x.%02x, err %d", 814 ERROR(ctx->dev,
815 "can't resubmit ctrl %02x.%02x, err %d\n",
826 reqp->bRequestType, reqp->bRequest, status); 816 reqp->bRequestType, reqp->bRequest, status);
827 urb->dev = NULL; 817 urb->dev = NULL;
828 } else 818 } else
829 ctx->pending++; 819 ctx->pending++;
830 } else 820 } else
831 urb->dev = NULL; 821 urb->dev = NULL;
832 822
833 /* signal completion when nothing's queued */ 823 /* signal completion when nothing's queued */
834 if (ctx->pending == 0) 824 if (ctx->pending == 0)
835 complete (&ctx->complete); 825 complete (&ctx->complete);
@@ -918,11 +908,11 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
918 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 908 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
919 // interface == 0 909 // interface == 0
920 len = sizeof (struct usb_interface_descriptor); 910 len = sizeof (struct usb_interface_descriptor);
921 expected = EPIPE; 911 expected = -EPIPE;
922 break; 912 break;
923 // NOTE: two consecutive stalls in the queue here. 913 // NOTE: two consecutive stalls in the queue here.
924 // that tests fault recovery a bit more aggressively. 914 // that tests fault recovery a bit more aggressively.
925 case 8: // clear endpoint halt (USUALLY STALLS) 915 case 8: // clear endpoint halt (MAY STALL)
926 req.bRequest = USB_REQ_CLEAR_FEATURE; 916 req.bRequest = USB_REQ_CLEAR_FEATURE;
927 req.bRequestType = USB_RECIP_ENDPOINT; 917 req.bRequestType = USB_RECIP_ENDPOINT;
928 // wValue 0 == ep halt 918 // wValue 0 == ep halt
@@ -965,7 +955,7 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
965 break; 955 break;
966 case 14: // short read; try to fill the last packet 956 case 14: // short read; try to fill the last packet
967 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 957 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
968 // device descriptor size == 18 bytes 958 /* device descriptor size == 18 bytes */
969 len = udev->descriptor.bMaxPacketSize0; 959 len = udev->descriptor.bMaxPacketSize0;
970 switch (len) { 960 switch (len) {
971 case 8: len = 24; break; 961 case 8: len = 24; break;
@@ -974,7 +964,7 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
974 expected = -EREMOTEIO; 964 expected = -EREMOTEIO;
975 break; 965 break;
976 default: 966 default:
977 err ("bogus number of ctrl queue testcases!"); 967 ERROR(dev, "bogus number of ctrl queue testcases!\n");
978 context.status = -EINVAL; 968 context.status = -EINVAL;
979 goto cleanup; 969 goto cleanup;
980 } 970 }
@@ -1003,7 +993,7 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
1003 for (i = 0; i < param->sglen; i++) { 993 for (i = 0; i < param->sglen; i++) {
1004 context.status = usb_submit_urb (urb [i], GFP_ATOMIC); 994 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
1005 if (context.status != 0) { 995 if (context.status != 0) {
1006 dbg ("can't submit urb[%d], status %d", 996 ERROR(dev, "can't submit urb[%d], status %d\n",
1007 i, context.status); 997 i, context.status);
1008 context.count = context.pending; 998 context.count = context.pending;
1009 break; 999 break;
@@ -1070,7 +1060,7 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1070 * due to errors, or is just NAKing requests. 1060 * due to errors, or is just NAKing requests.
1071 */ 1061 */
1072 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { 1062 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1073 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); 1063 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1074 return retval; 1064 return retval;
1075 } 1065 }
1076 1066
@@ -1087,13 +1077,13 @@ retry:
1087 * "normal" drivers would prevent resubmission, but 1077 * "normal" drivers would prevent resubmission, but
1088 * since we're testing unlink paths, we can't. 1078 * since we're testing unlink paths, we can't.
1089 */ 1079 */
1090 dev_dbg (&dev->intf->dev, "unlink retry\n"); 1080 ERROR(dev, "unlink retry\n");
1091 goto retry; 1081 goto retry;
1092 } 1082 }
1093 } else 1083 } else
1094 usb_kill_urb (urb); 1084 usb_kill_urb (urb);
1095 if (!(retval == 0 || retval == -EINPROGRESS)) { 1085 if (!(retval == 0 || retval == -EINPROGRESS)) {
1096 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); 1086 dev_err(&dev->intf->dev, "unlink fail %d\n", retval);
1097 return retval; 1087 return retval;
1098 } 1088 }
1099 1089
@@ -1121,7 +1111,7 @@ static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1121 1111
1122/*-------------------------------------------------------------------------*/ 1112/*-------------------------------------------------------------------------*/
1123 1113
1124static int verify_not_halted (int ep, struct urb *urb) 1114static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1125{ 1115{
1126 int retval; 1116 int retval;
1127 u16 status; 1117 u16 status;
@@ -1129,20 +1119,21 @@ static int verify_not_halted (int ep, struct urb *urb)
1129 /* shouldn't look or act halted */ 1119 /* shouldn't look or act halted */
1130 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1120 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1131 if (retval < 0) { 1121 if (retval < 0) {
1132 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); 1122 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1123 ep, retval);
1133 return retval; 1124 return retval;
1134 } 1125 }
1135 if (status != 0) { 1126 if (status != 0) {
1136 dbg ("ep %02x bogus status: %04x != 0", ep, status); 1127 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1137 return -EINVAL; 1128 return -EINVAL;
1138 } 1129 }
1139 retval = simple_io (urb, 1, 0, 0, __func__); 1130 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1140 if (retval != 0) 1131 if (retval != 0)
1141 return -EINVAL; 1132 return -EINVAL;
1142 return 0; 1133 return 0;
1143} 1134}
1144 1135
1145static int verify_halted (int ep, struct urb *urb) 1136static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1146{ 1137{
1147 int retval; 1138 int retval;
1148 u16 status; 1139 u16 status;
@@ -1150,29 +1141,30 @@ static int verify_halted (int ep, struct urb *urb)
1150 /* should look and act halted */ 1141 /* should look and act halted */
1151 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1142 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1152 if (retval < 0) { 1143 if (retval < 0) {
1153 dbg ("ep %02x couldn't get halt status, %d", ep, retval); 1144 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1145 ep, retval);
1154 return retval; 1146 return retval;
1155 } 1147 }
1156 le16_to_cpus(&status); 1148 le16_to_cpus(&status);
1157 if (status != 1) { 1149 if (status != 1) {
1158 dbg ("ep %02x bogus status: %04x != 1", ep, status); 1150 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1159 return -EINVAL; 1151 return -EINVAL;
1160 } 1152 }
1161 retval = simple_io (urb, 1, 0, -EPIPE, __func__); 1153 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1162 if (retval != -EPIPE) 1154 if (retval != -EPIPE)
1163 return -EINVAL; 1155 return -EINVAL;
1164 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); 1156 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1165 if (retval != -EPIPE) 1157 if (retval != -EPIPE)
1166 return -EINVAL; 1158 return -EINVAL;
1167 return 0; 1159 return 0;
1168} 1160}
1169 1161
1170static int test_halt (int ep, struct urb *urb) 1162static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1171{ 1163{
1172 int retval; 1164 int retval;
1173 1165
1174 /* shouldn't look or act halted now */ 1166 /* shouldn't look or act halted now */
1175 retval = verify_not_halted (ep, urb); 1167 retval = verify_not_halted(tdev, ep, urb);
1176 if (retval < 0) 1168 if (retval < 0)
1177 return retval; 1169 return retval;
1178 1170
@@ -1182,20 +1174,20 @@ static int test_halt (int ep, struct urb *urb)
1182 USB_ENDPOINT_HALT, ep, 1174 USB_ENDPOINT_HALT, ep,
1183 NULL, 0, USB_CTRL_SET_TIMEOUT); 1175 NULL, 0, USB_CTRL_SET_TIMEOUT);
1184 if (retval < 0) { 1176 if (retval < 0) {
1185 dbg ("ep %02x couldn't set halt, %d", ep, retval); 1177 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1186 return retval; 1178 return retval;
1187 } 1179 }
1188 retval = verify_halted (ep, urb); 1180 retval = verify_halted(tdev, ep, urb);
1189 if (retval < 0) 1181 if (retval < 0)
1190 return retval; 1182 return retval;
1191 1183
1192 /* clear halt (tests API + protocol), verify it worked */ 1184 /* clear halt (tests API + protocol), verify it worked */
1193 retval = usb_clear_halt (urb->dev, urb->pipe); 1185 retval = usb_clear_halt (urb->dev, urb->pipe);
1194 if (retval < 0) { 1186 if (retval < 0) {
1195 dbg ("ep %02x couldn't clear halt, %d", ep, retval); 1187 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1196 return retval; 1188 return retval;
1197 } 1189 }
1198 retval = verify_not_halted (ep, urb); 1190 retval = verify_not_halted(tdev, ep, urb);
1199 if (retval < 0) 1191 if (retval < 0)
1200 return retval; 1192 return retval;
1201 1193
@@ -1217,7 +1209,7 @@ static int halt_simple (struct usbtest_dev *dev)
1217 if (dev->in_pipe) { 1209 if (dev->in_pipe) {
1218 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1210 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1219 urb->pipe = dev->in_pipe; 1211 urb->pipe = dev->in_pipe;
1220 retval = test_halt (ep, urb); 1212 retval = test_halt(dev, ep, urb);
1221 if (retval < 0) 1213 if (retval < 0)
1222 goto done; 1214 goto done;
1223 } 1215 }
@@ -1225,7 +1217,7 @@ static int halt_simple (struct usbtest_dev *dev)
1225 if (dev->out_pipe) { 1217 if (dev->out_pipe) {
1226 ep = usb_pipeendpoint (dev->out_pipe); 1218 ep = usb_pipeendpoint (dev->out_pipe);
1227 urb->pipe = dev->out_pipe; 1219 urb->pipe = dev->out_pipe;
1228 retval = test_halt (ep, urb); 1220 retval = test_halt(dev, ep, urb);
1229 } 1221 }
1230done: 1222done:
1231 simple_free_urb (urb); 1223 simple_free_urb (urb);
@@ -1275,7 +1267,7 @@ static int ctrl_out (struct usbtest_dev *dev,
1275 if (retval != len) { 1267 if (retval != len) {
1276 what = "write"; 1268 what = "write";
1277 if (retval >= 0) { 1269 if (retval >= 0) {
1278 INFO(dev, "ctrl_out, wlen %d (expected %d)\n", 1270 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1279 retval, len); 1271 retval, len);
1280 retval = -EBADMSG; 1272 retval = -EBADMSG;
1281 } 1273 }
@@ -1289,7 +1281,7 @@ static int ctrl_out (struct usbtest_dev *dev,
1289 if (retval != len) { 1281 if (retval != len) {
1290 what = "read"; 1282 what = "read";
1291 if (retval >= 0) { 1283 if (retval >= 0) {
1292 INFO(dev, "ctrl_out, rlen %d (expected %d)\n", 1284 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1293 retval, len); 1285 retval, len);
1294 retval = -EBADMSG; 1286 retval = -EBADMSG;
1295 } 1287 }
@@ -1299,7 +1291,7 @@ static int ctrl_out (struct usbtest_dev *dev,
1299 /* fail if we can't verify */ 1291 /* fail if we can't verify */
1300 for (j = 0; j < len; j++) { 1292 for (j = 0; j < len; j++) {
1301 if (buf [j] != (u8) (i + j)) { 1293 if (buf [j] != (u8) (i + j)) {
1302 INFO (dev, "ctrl_out, byte %d is %d not %d\n", 1294 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1303 j, buf [j], (u8) i + j); 1295 j, buf [j], (u8) i + j);
1304 retval = -EBADMSG; 1296 retval = -EBADMSG;
1305 break; 1297 break;
@@ -1321,7 +1313,7 @@ static int ctrl_out (struct usbtest_dev *dev,
1321 } 1313 }
1322 1314
1323 if (retval < 0) 1315 if (retval < 0)
1324 INFO (dev, "ctrl_out %s failed, code %d, count %d\n", 1316 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
1325 what, retval, i); 1317 what, retval, i);
1326 1318
1327 kfree (buf); 1319 kfree (buf);
@@ -1366,7 +1358,7 @@ static void iso_callback (struct urb *urb)
1366 case 0: 1358 case 0:
1367 goto done; 1359 goto done;
1368 default: 1360 default:
1369 dev_dbg (&ctx->dev->intf->dev, 1361 dev_err(&ctx->dev->intf->dev,
1370 "iso resubmit err %d\n", 1362 "iso resubmit err %d\n",
1371 status); 1363 status);
1372 /* FALLTHROUGH */ 1364 /* FALLTHROUGH */
@@ -1381,7 +1373,7 @@ static void iso_callback (struct urb *urb)
1381 ctx->pending--; 1373 ctx->pending--;
1382 if (ctx->pending == 0) { 1374 if (ctx->pending == 0) {
1383 if (ctx->errors) 1375 if (ctx->errors)
1384 dev_dbg (&ctx->dev->intf->dev, 1376 dev_err(&ctx->dev->intf->dev,
1385 "iso test, %lu errors out of %lu\n", 1377 "iso test, %lu errors out of %lu\n",
1386 ctx->errors, ctx->packet_count); 1378 ctx->errors, ctx->packet_count);
1387 complete (&ctx->done); 1379 complete (&ctx->done);
@@ -1458,7 +1450,7 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1458 1450
1459 memset (urbs, 0, sizeof urbs); 1451 memset (urbs, 0, sizeof urbs);
1460 udev = testdev_to_usbdev (dev); 1452 udev = testdev_to_usbdev (dev);
1461 dev_dbg (&dev->intf->dev, 1453 dev_info(&dev->intf->dev,
1462 "... iso period %d %sframes, wMaxPacket %04x\n", 1454 "... iso period %d %sframes, wMaxPacket %04x\n",
1463 1 << (desc->bInterval - 1), 1455 1 << (desc->bInterval - 1),
1464 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1456 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
@@ -1475,7 +1467,7 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1475 urbs [i]->context = &context; 1467 urbs [i]->context = &context;
1476 } 1468 }
1477 packets *= param->iterations; 1469 packets *= param->iterations;
1478 dev_dbg (&dev->intf->dev, 1470 dev_info(&dev->intf->dev,
1479 "... total %lu msec (%lu packets)\n", 1471 "... total %lu msec (%lu packets)\n",
1480 (packets * (1 << (desc->bInterval - 1))) 1472 (packets * (1 << (desc->bInterval - 1)))
1481 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1473 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
@@ -1537,6 +1529,13 @@ fail:
1537 * except indirectly by consuming USB bandwidth and CPU resources for test 1529 * except indirectly by consuming USB bandwidth and CPU resources for test
1538 * threads and request completion. But the only way to know that for sure 1530 * threads and request completion. But the only way to know that for sure
1539 * is to test when HC queues are in use by many devices. 1531 * is to test when HC queues are in use by many devices.
1532 *
1533 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1534 * it locks out usbcore in certain code paths. Notably, if you disconnect
1535 * the device-under-test, khubd will wait block forever waiting for the
1536 * ioctl to complete ... so that usb_disconnect() can abort the pending
1537 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1538 * off just killing the userspace task and waiting for it to exit.
1540 */ 1539 */
1541 1540
1542static int 1541static int
@@ -1575,7 +1574,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1575 * altsettings; force a default so most tests don't need to check. 1574 * altsettings; force a default so most tests don't need to check.
1576 */ 1575 */
1577 if (dev->info->alt >= 0) { 1576 if (dev->info->alt >= 0) {
1578 int res; 1577 int res;
1579 1578
1580 if (intf->altsetting->desc.bInterfaceNumber) { 1579 if (intf->altsetting->desc.bInterfaceNumber) {
1581 mutex_unlock(&dev->lock); 1580 mutex_unlock(&dev->lock);
@@ -1604,7 +1603,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1604 switch (param->test_num) { 1603 switch (param->test_num) {
1605 1604
1606 case 0: 1605 case 0:
1607 dev_dbg (&intf->dev, "TEST 0: NOP\n"); 1606 dev_info(&intf->dev, "TEST 0: NOP\n");
1608 retval = 0; 1607 retval = 0;
1609 break; 1608 break;
1610 1609
@@ -1612,7 +1611,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1612 case 1: 1611 case 1:
1613 if (dev->out_pipe == 0) 1612 if (dev->out_pipe == 0)
1614 break; 1613 break;
1615 dev_dbg (&intf->dev, 1614 dev_info(&intf->dev,
1616 "TEST 1: write %d bytes %u times\n", 1615 "TEST 1: write %d bytes %u times\n",
1617 param->length, param->iterations); 1616 param->length, param->iterations);
1618 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1617 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
@@ -1621,13 +1620,13 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1621 break; 1620 break;
1622 } 1621 }
1623 // FIRMWARE: bulk sink (maybe accepts short writes) 1622 // FIRMWARE: bulk sink (maybe accepts short writes)
1624 retval = simple_io (urb, param->iterations, 0, 0, "test1"); 1623 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1625 simple_free_urb (urb); 1624 simple_free_urb (urb);
1626 break; 1625 break;
1627 case 2: 1626 case 2:
1628 if (dev->in_pipe == 0) 1627 if (dev->in_pipe == 0)
1629 break; 1628 break;
1630 dev_dbg (&intf->dev, 1629 dev_info(&intf->dev,
1631 "TEST 2: read %d bytes %u times\n", 1630 "TEST 2: read %d bytes %u times\n",
1632 param->length, param->iterations); 1631 param->length, param->iterations);
1633 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1632 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
@@ -1636,13 +1635,13 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1636 break; 1635 break;
1637 } 1636 }
1638 // FIRMWARE: bulk source (maybe generates short writes) 1637 // FIRMWARE: bulk source (maybe generates short writes)
1639 retval = simple_io (urb, param->iterations, 0, 0, "test2"); 1638 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1640 simple_free_urb (urb); 1639 simple_free_urb (urb);
1641 break; 1640 break;
1642 case 3: 1641 case 3:
1643 if (dev->out_pipe == 0 || param->vary == 0) 1642 if (dev->out_pipe == 0 || param->vary == 0)
1644 break; 1643 break;
1645 dev_dbg (&intf->dev, 1644 dev_info(&intf->dev,
1646 "TEST 3: write/%d 0..%d bytes %u times\n", 1645 "TEST 3: write/%d 0..%d bytes %u times\n",
1647 param->vary, param->length, param->iterations); 1646 param->vary, param->length, param->iterations);
1648 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1647 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
@@ -1651,14 +1650,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1651 break; 1650 break;
1652 } 1651 }
1653 // FIRMWARE: bulk sink (maybe accepts short writes) 1652 // FIRMWARE: bulk sink (maybe accepts short writes)
1654 retval = simple_io (urb, param->iterations, param->vary, 1653 retval = simple_io(dev, urb, param->iterations, param->vary,
1655 0, "test3"); 1654 0, "test3");
1656 simple_free_urb (urb); 1655 simple_free_urb (urb);
1657 break; 1656 break;
1658 case 4: 1657 case 4:
1659 if (dev->in_pipe == 0 || param->vary == 0) 1658 if (dev->in_pipe == 0 || param->vary == 0)
1660 break; 1659 break;
1661 dev_dbg (&intf->dev, 1660 dev_info(&intf->dev,
1662 "TEST 4: read/%d 0..%d bytes %u times\n", 1661 "TEST 4: read/%d 0..%d bytes %u times\n",
1663 param->vary, param->length, param->iterations); 1662 param->vary, param->length, param->iterations);
1664 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1663 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
@@ -1667,7 +1666,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1667 break; 1666 break;
1668 } 1667 }
1669 // FIRMWARE: bulk source (maybe generates short writes) 1668 // FIRMWARE: bulk source (maybe generates short writes)
1670 retval = simple_io (urb, param->iterations, param->vary, 1669 retval = simple_io(dev, urb, param->iterations, param->vary,
1671 0, "test4"); 1670 0, "test4");
1672 simple_free_urb (urb); 1671 simple_free_urb (urb);
1673 break; 1672 break;
@@ -1676,7 +1675,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1676 case 5: 1675 case 5:
1677 if (dev->out_pipe == 0 || param->sglen == 0) 1676 if (dev->out_pipe == 0 || param->sglen == 0)
1678 break; 1677 break;
1679 dev_dbg (&intf->dev, 1678 dev_info(&intf->dev,
1680 "TEST 5: write %d sglists %d entries of %d bytes\n", 1679 "TEST 5: write %d sglists %d entries of %d bytes\n",
1681 param->iterations, 1680 param->iterations,
1682 param->sglen, param->length); 1681 param->sglen, param->length);
@@ -1686,7 +1685,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1686 break; 1685 break;
1687 } 1686 }
1688 // FIRMWARE: bulk sink (maybe accepts short writes) 1687 // FIRMWARE: bulk sink (maybe accepts short writes)
1689 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1688 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1690 &req, sg, param->sglen); 1689 &req, sg, param->sglen);
1691 free_sglist (sg, param->sglen); 1690 free_sglist (sg, param->sglen);
1692 break; 1691 break;
@@ -1694,7 +1693,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1694 case 6: 1693 case 6:
1695 if (dev->in_pipe == 0 || param->sglen == 0) 1694 if (dev->in_pipe == 0 || param->sglen == 0)
1696 break; 1695 break;
1697 dev_dbg (&intf->dev, 1696 dev_info(&intf->dev,
1698 "TEST 6: read %d sglists %d entries of %d bytes\n", 1697 "TEST 6: read %d sglists %d entries of %d bytes\n",
1699 param->iterations, 1698 param->iterations,
1700 param->sglen, param->length); 1699 param->sglen, param->length);
@@ -1704,14 +1703,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1704 break; 1703 break;
1705 } 1704 }
1706 // FIRMWARE: bulk source (maybe generates short writes) 1705 // FIRMWARE: bulk source (maybe generates short writes)
1707 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1706 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1708 &req, sg, param->sglen); 1707 &req, sg, param->sglen);
1709 free_sglist (sg, param->sglen); 1708 free_sglist (sg, param->sglen);
1710 break; 1709 break;
1711 case 7: 1710 case 7:
1712 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1711 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1713 break; 1712 break;
1714 dev_dbg (&intf->dev, 1713 dev_info(&intf->dev,
1715 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1714 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1716 param->vary, param->iterations, 1715 param->vary, param->iterations,
1717 param->sglen, param->length); 1716 param->sglen, param->length);
@@ -1721,14 +1720,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1721 break; 1720 break;
1722 } 1721 }
1723 // FIRMWARE: bulk sink (maybe accepts short writes) 1722 // FIRMWARE: bulk sink (maybe accepts short writes)
1724 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1723 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1725 &req, sg, param->sglen); 1724 &req, sg, param->sglen);
1726 free_sglist (sg, param->sglen); 1725 free_sglist (sg, param->sglen);
1727 break; 1726 break;
1728 case 8: 1727 case 8:
1729 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1728 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1730 break; 1729 break;
1731 dev_dbg (&intf->dev, 1730 dev_info(&intf->dev,
1732 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1731 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1733 param->vary, param->iterations, 1732 param->vary, param->iterations,
1734 param->sglen, param->length); 1733 param->sglen, param->length);
@@ -1738,7 +1737,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1738 break; 1737 break;
1739 } 1738 }
1740 // FIRMWARE: bulk source (maybe generates short writes) 1739 // FIRMWARE: bulk source (maybe generates short writes)
1741 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1740 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1742 &req, sg, param->sglen); 1741 &req, sg, param->sglen);
1743 free_sglist (sg, param->sglen); 1742 free_sglist (sg, param->sglen);
1744 break; 1743 break;
@@ -1746,13 +1745,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1746 /* non-queued sanity tests for control (chapter 9 subset) */ 1745 /* non-queued sanity tests for control (chapter 9 subset) */
1747 case 9: 1746 case 9:
1748 retval = 0; 1747 retval = 0;
1749 dev_dbg (&intf->dev, 1748 dev_info(&intf->dev,
1750 "TEST 9: ch9 (subset) control tests, %d times\n", 1749 "TEST 9: ch9 (subset) control tests, %d times\n",
1751 param->iterations); 1750 param->iterations);
1752 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1751 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1753 retval = ch9_postconfig (dev); 1752 retval = ch9_postconfig (dev);
1754 if (retval) 1753 if (retval)
1755 dbg ("ch9 subset failed, iterations left %d", i); 1754 dev_err(&intf->dev, "ch9 subset failed, "
1755 "iterations left %d\n", i);
1756 break; 1756 break;
1757 1757
1758 /* queued control messaging */ 1758 /* queued control messaging */
@@ -1760,7 +1760,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1760 if (param->sglen == 0) 1760 if (param->sglen == 0)
1761 break; 1761 break;
1762 retval = 0; 1762 retval = 0;
1763 dev_dbg (&intf->dev, 1763 dev_info(&intf->dev,
1764 "TEST 10: queue %d control calls, %d times\n", 1764 "TEST 10: queue %d control calls, %d times\n",
1765 param->sglen, 1765 param->sglen,
1766 param->iterations); 1766 param->iterations);
@@ -1772,26 +1772,26 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1772 if (dev->in_pipe == 0 || !param->length) 1772 if (dev->in_pipe == 0 || !param->length)
1773 break; 1773 break;
1774 retval = 0; 1774 retval = 0;
1775 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", 1775 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1776 param->iterations, param->length); 1776 param->iterations, param->length);
1777 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1777 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1778 retval = unlink_simple (dev, dev->in_pipe, 1778 retval = unlink_simple (dev, dev->in_pipe,
1779 param->length); 1779 param->length);
1780 if (retval) 1780 if (retval)
1781 dev_dbg (&intf->dev, "unlink reads failed %d, " 1781 dev_err(&intf->dev, "unlink reads failed %d, "
1782 "iterations left %d\n", retval, i); 1782 "iterations left %d\n", retval, i);
1783 break; 1783 break;
1784 case 12: 1784 case 12:
1785 if (dev->out_pipe == 0 || !param->length) 1785 if (dev->out_pipe == 0 || !param->length)
1786 break; 1786 break;
1787 retval = 0; 1787 retval = 0;
1788 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", 1788 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1789 param->iterations, param->length); 1789 param->iterations, param->length);
1790 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1790 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1791 retval = unlink_simple (dev, dev->out_pipe, 1791 retval = unlink_simple (dev, dev->out_pipe,
1792 param->length); 1792 param->length);
1793 if (retval) 1793 if (retval)
1794 dev_dbg (&intf->dev, "unlink writes failed %d, " 1794 dev_err(&intf->dev, "unlink writes failed %d, "
1795 "iterations left %d\n", retval, i); 1795 "iterations left %d\n", retval, i);
1796 break; 1796 break;
1797 1797
@@ -1800,24 +1800,24 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1800 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1800 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1801 break; 1801 break;
1802 retval = 0; 1802 retval = 0;
1803 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", 1803 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1804 param->iterations); 1804 param->iterations);
1805 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1805 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1806 retval = halt_simple (dev); 1806 retval = halt_simple (dev);
1807 1807
1808 if (retval) 1808 if (retval)
1809 DBG (dev, "halts failed, iterations left %d\n", i); 1809 ERROR(dev, "halts failed, iterations left %d\n", i);
1810 break; 1810 break;
1811 1811
1812 /* control write tests */ 1812 /* control write tests */
1813 case 14: 1813 case 14:
1814 if (!dev->info->ctrl_out) 1814 if (!dev->info->ctrl_out)
1815 break; 1815 break;
1816 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1816 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1817 param->iterations, 1817 param->iterations,
1818 realworld ? 1 : 0, param->length, 1818 realworld ? 1 : 0, param->length,
1819 param->vary); 1819 param->vary);
1820 retval = ctrl_out (dev, param->iterations, 1820 retval = ctrl_out(dev, param->iterations,
1821 param->length, param->vary); 1821 param->length, param->vary);
1822 break; 1822 break;
1823 1823
@@ -1825,7 +1825,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1825 case 15: 1825 case 15:
1826 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1826 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1827 break; 1827 break;
1828 dev_dbg (&intf->dev, 1828 dev_info(&intf->dev,
1829 "TEST 15: write %d iso, %d entries of %d bytes\n", 1829 "TEST 15: write %d iso, %d entries of %d bytes\n",
1830 param->iterations, 1830 param->iterations,
1831 param->sglen, param->length); 1831 param->sglen, param->length);
@@ -1838,7 +1838,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1838 case 16: 1838 case 16:
1839 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1839 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1840 break; 1840 break;
1841 dev_dbg (&intf->dev, 1841 dev_info(&intf->dev,
1842 "TEST 16: read %d iso, %d entries of %d bytes\n", 1842 "TEST 16: read %d iso, %d entries of %d bytes\n",
1843 param->iterations, 1843 param->iterations,
1844 param->sglen, param->length); 1844 param->sglen, param->length);
@@ -1898,7 +1898,8 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1898 return -ENODEV; 1898 return -ENODEV;
1899 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1899 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1900 return -ENODEV; 1900 return -ENODEV;
1901 dbg ("matched module params, vend=0x%04x prod=0x%04x", 1901 dev_info(&intf->dev, "matched module params, "
1902 "vend=0x%04x prod=0x%04x\n",
1902 le16_to_cpu(udev->descriptor.idVendor), 1903 le16_to_cpu(udev->descriptor.idVendor),
1903 le16_to_cpu(udev->descriptor.idProduct)); 1904 le16_to_cpu(udev->descriptor.idProduct));
1904 } 1905 }
@@ -1940,7 +1941,8 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1940 1941
1941 status = get_endpoints (dev, intf); 1942 status = get_endpoints (dev, intf);
1942 if (status < 0) { 1943 if (status < 0) {
1943 dbg ("couldn't get endpoints, %d\n", status); 1944 WARN(dev, "couldn't get endpoints, %d\n",
1945 status);
1944 return status; 1946 return status;
1945 } 1947 }
1946 /* may find bulk or ISO pipes */ 1948 /* may find bulk or ISO pipes */
@@ -2082,21 +2084,9 @@ static struct usbtest_info generic_info = {
2082}; 2084};
2083#endif 2085#endif
2084 2086
2085// FIXME remove this
2086static struct usbtest_info hact_info = {
2087 .name = "FX2/hact",
2088 //.ep_in = 6,
2089 .ep_out = 2,
2090 .alt = -1,
2091};
2092
2093 2087
2094static struct usb_device_id id_table [] = { 2088static struct usb_device_id id_table [] = {
2095 2089
2096 { USB_DEVICE (0x0547, 0x1002),
2097 .driver_info = (unsigned long) &hact_info,
2098 },
2099
2100 /*-------------------------------------------------------------*/ 2090 /*-------------------------------------------------------------*/
2101 2091
2102 /* EZ-USB devices which download firmware to replace (or in our 2092 /* EZ-USB devices which download firmware to replace (or in our
@@ -2185,7 +2175,7 @@ static int __init usbtest_init (void)
2185{ 2175{
2186#ifdef GENERIC 2176#ifdef GENERIC
2187 if (vendor) 2177 if (vendor)
2188 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); 2178 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2189#endif 2179#endif
2190 return usb_register (&usbtest_driver); 2180 return usb_register (&usbtest_driver);
2191} 2181}
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 9b1bb347dc2d..db6f97a93c02 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -147,7 +147,7 @@ static void serial_buf_free(struct circ_buf *cb)
147 */ 147 */
148static int serial_buf_data_avail(struct circ_buf *cb) 148static int serial_buf_data_avail(struct circ_buf *cb)
149{ 149{
150 return CIRC_CNT(cb->head,cb->tail,AIRCABLE_BUF_SIZE); 150 return CIRC_CNT(cb->head, cb->tail, AIRCABLE_BUF_SIZE);
151} 151}
152 152
153/* 153/*
@@ -171,7 +171,7 @@ static int serial_buf_put(struct circ_buf *cb, const char *buf, int count)
171 cb->head = (cb->head + c) & (AIRCABLE_BUF_SIZE-1); 171 cb->head = (cb->head + c) & (AIRCABLE_BUF_SIZE-1);
172 buf += c; 172 buf += c;
173 count -= c; 173 count -= c;
174 ret= c; 174 ret = c;
175 } 175 }
176 return ret; 176 return ret;
177} 177}
@@ -197,7 +197,7 @@ static int serial_buf_get(struct circ_buf *cb, char *buf, int count)
197 cb->tail = (cb->tail + c) & (AIRCABLE_BUF_SIZE-1); 197 cb->tail = (cb->tail + c) & (AIRCABLE_BUF_SIZE-1);
198 buf += c; 198 buf += c;
199 count -= c; 199 count -= c;
200 ret= c; 200 ret = c;
201 } 201 }
202 return ret; 202 return ret;
203} 203}
@@ -208,7 +208,7 @@ static void aircable_send(struct usb_serial_port *port)
208{ 208{
209 int count, result; 209 int count, result;
210 struct aircable_private *priv = usb_get_serial_port_data(port); 210 struct aircable_private *priv = usb_get_serial_port_data(port);
211 unsigned char* buf; 211 unsigned char *buf;
212 __le16 *dbuf; 212 __le16 *dbuf;
213 dbg("%s - port %d", __func__, port->number); 213 dbg("%s - port %d", __func__, port->number);
214 if (port->write_urb_busy) 214 if (port->write_urb_busy)
@@ -229,7 +229,8 @@ static void aircable_send(struct usb_serial_port *port)
229 buf[1] = TX_HEADER_1; 229 buf[1] = TX_HEADER_1;
230 dbuf = (__le16 *)&buf[2]; 230 dbuf = (__le16 *)&buf[2];
231 *dbuf = cpu_to_le16((u16)count); 231 *dbuf = cpu_to_le16((u16)count);
232 serial_buf_get(priv->tx_buf,buf + HCI_HEADER_LENGTH, MAX_HCI_FRAMESIZE); 232 serial_buf_get(priv->tx_buf, buf + HCI_HEADER_LENGTH,
233 MAX_HCI_FRAMESIZE);
233 234
234 memcpy(port->write_urb->transfer_buffer, buf, 235 memcpy(port->write_urb->transfer_buffer, buf,
235 count + HCI_HEADER_LENGTH); 236 count + HCI_HEADER_LENGTH);
@@ -261,7 +262,7 @@ static void aircable_read(struct work_struct *work)
261 struct tty_struct *tty; 262 struct tty_struct *tty;
262 unsigned char *data; 263 unsigned char *data;
263 int count; 264 int count;
264 if (priv->rx_flags & THROTTLED){ 265 if (priv->rx_flags & THROTTLED) {
265 if (priv->rx_flags & ACTUALLY_THROTTLED) 266 if (priv->rx_flags & ACTUALLY_THROTTLED)
266 schedule_work(&priv->rx_work); 267 schedule_work(&priv->rx_work);
267 return; 268 return;
@@ -282,10 +283,10 @@ static void aircable_read(struct work_struct *work)
282 count = min(64, serial_buf_data_avail(priv->rx_buf)); 283 count = min(64, serial_buf_data_avail(priv->rx_buf));
283 284
284 if (count <= 0) 285 if (count <= 0)
285 return; //We have finished sending everything. 286 return; /* We have finished sending everything. */
286 287
287 tty_prepare_flip_string(tty, &data, count); 288 tty_prepare_flip_string(tty, &data, count);
288 if (!data){ 289 if (!data) {
289 err("%s- kzalloc(%d) failed.", __func__, count); 290 err("%s- kzalloc(%d) failed.", __func__, count);
290 return; 291 return;
291 } 292 }
@@ -304,9 +305,10 @@ static void aircable_read(struct work_struct *work)
304static int aircable_probe(struct usb_serial *serial, 305static int aircable_probe(struct usb_serial *serial,
305 const struct usb_device_id *id) 306 const struct usb_device_id *id)
306{ 307{
307 struct usb_host_interface *iface_desc = serial->interface->cur_altsetting; 308 struct usb_host_interface *iface_desc = serial->interface->
309 cur_altsetting;
308 struct usb_endpoint_descriptor *endpoint; 310 struct usb_endpoint_descriptor *endpoint;
309 int num_bulk_out=0; 311 int num_bulk_out = 0;
310 int i; 312 int i;
311 313
312 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 314 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
@@ -325,13 +327,13 @@ static int aircable_probe(struct usb_serial *serial,
325 return 0; 327 return 0;
326} 328}
327 329
328static int aircable_attach (struct usb_serial *serial) 330static int aircable_attach(struct usb_serial *serial)
329{ 331{
330 struct usb_serial_port *port = serial->port[0]; 332 struct usb_serial_port *port = serial->port[0];
331 struct aircable_private *priv; 333 struct aircable_private *priv;
332 334
333 priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL); 335 priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL);
334 if (!priv){ 336 if (!priv) {
335 err("%s- kmalloc(%Zd) failed.", __func__, 337 err("%s- kmalloc(%Zd) failed.", __func__,
336 sizeof(struct aircable_private)); 338 sizeof(struct aircable_private));
337 return -ENOMEM; 339 return -ENOMEM;
@@ -392,7 +394,7 @@ static int aircable_write(struct usb_serial_port *port,
392 394
393 usb_serial_debug_data(debug, &port->dev, __func__, count, source); 395 usb_serial_debug_data(debug, &port->dev, __func__, count, source);
394 396
395 if (!count){ 397 if (!count) {
396 dbg("%s - write request of 0 bytes", __func__); 398 dbg("%s - write request of 0 bytes", __func__);
397 return count; 399 return count;
398 } 400 }
@@ -418,31 +420,31 @@ static void aircable_write_bulk_callback(struct urb *urb)
418 420
419 /* This has been taken from cypress_m8.c cypress_write_int_callback */ 421 /* This has been taken from cypress_m8.c cypress_write_int_callback */
420 switch (status) { 422 switch (status) {
421 case 0: 423 case 0:
422 /* success */ 424 /* success */
423 break; 425 break;
424 case -ECONNRESET: 426 case -ECONNRESET:
425 case -ENOENT: 427 case -ENOENT:
426 case -ESHUTDOWN: 428 case -ESHUTDOWN:
427 /* this urb is terminated, clean up */ 429 /* this urb is terminated, clean up */
428 dbg("%s - urb shutting down with status: %d", 430 dbg("%s - urb shutting down with status: %d",
429 __func__, status); 431 __func__, status);
430 port->write_urb_busy = 0; 432 port->write_urb_busy = 0;
433 return;
434 default:
435 /* error in the urb, so we have to resubmit it */
436 dbg("%s - Overflow in write", __func__);
437 dbg("%s - nonzero write bulk status received: %d",
438 __func__, status);
439 port->write_urb->transfer_buffer_length = 1;
440 port->write_urb->dev = port->serial->dev;
441 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
442 if (result)
443 dev_err(&urb->dev->dev,
444 "%s - failed resubmitting write urb, error %d\n",
445 __func__, result);
446 else
431 return; 447 return;
432 default:
433 /* error in the urb, so we have to resubmit it */
434 dbg("%s - Overflow in write", __func__);
435 dbg("%s - nonzero write bulk status received: %d",
436 __func__, status);
437 port->write_urb->transfer_buffer_length = 1;
438 port->write_urb->dev = port->serial->dev;
439 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
440 if (result)
441 dev_err(&urb->dev->dev,
442 "%s - failed resubmitting write urb, error %d\n",
443 __func__, result);
444 else
445 return;
446 } 448 }
447 449
448 port->write_urb_busy = 0; 450 port->write_urb_busy = 0;
@@ -472,11 +474,11 @@ static void aircable_read_bulk_callback(struct urb *urb)
472 dbg("%s - caught -EPROTO, resubmitting the urb", 474 dbg("%s - caught -EPROTO, resubmitting the urb",
473 __func__); 475 __func__);
474 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 476 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
475 usb_rcvbulkpipe(port->serial->dev, 477 usb_rcvbulkpipe(port->serial->dev,
476 port->bulk_in_endpointAddress), 478 port->bulk_in_endpointAddress),
477 port->read_urb->transfer_buffer, 479 port->read_urb->transfer_buffer,
478 port->read_urb->transfer_buffer_length, 480 port->read_urb->transfer_buffer_length,
479 aircable_read_bulk_callback, port); 481 aircable_read_bulk_callback, port);
480 482
481 result = usb_submit_urb(urb, GFP_ATOMIC); 483 result = usb_submit_urb(urb, GFP_ATOMIC);
482 if (result) 484 if (result)
@@ -490,7 +492,7 @@ static void aircable_read_bulk_callback(struct urb *urb)
490 } 492 }
491 493
492 usb_serial_debug_data(debug, &port->dev, __func__, 494 usb_serial_debug_data(debug, &port->dev, __func__,
493 urb->actual_length,urb->transfer_buffer); 495 urb->actual_length, urb->transfer_buffer);
494 496
495 tty = port->tty; 497 tty = port->tty;
496 if (tty && urb->actual_length) { 498 if (tty && urb->actual_length) {
@@ -507,9 +509,9 @@ static void aircable_read_bulk_callback(struct urb *urb)
507 no_packages = urb->actual_length / (HCI_COMPLETE_FRAME); 509 no_packages = urb->actual_length / (HCI_COMPLETE_FRAME);
508 510
509 if (urb->actual_length % HCI_COMPLETE_FRAME != 0) 511 if (urb->actual_length % HCI_COMPLETE_FRAME != 0)
510 no_packages+=1; 512 no_packages++;
511 513
512 for (i = 0; i < no_packages ;i++) { 514 for (i = 0; i < no_packages; i++) {
513 if (remaining > (HCI_COMPLETE_FRAME)) 515 if (remaining > (HCI_COMPLETE_FRAME))
514 package_length = HCI_COMPLETE_FRAME; 516 package_length = HCI_COMPLETE_FRAME;
515 else 517 else
@@ -529,7 +531,7 @@ static void aircable_read_bulk_callback(struct urb *urb)
529 if (port->open_count) { 531 if (port->open_count) {
530 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 532 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
531 usb_rcvbulkpipe(port->serial->dev, 533 usb_rcvbulkpipe(port->serial->dev,
532 port->bulk_in_endpointAddress), 534 port->bulk_in_endpointAddress),
533 port->read_urb->transfer_buffer, 535 port->read_urb->transfer_buffer,
534 port->read_urb->transfer_buffer_length, 536 port->read_urb->transfer_buffer_length,
535 aircable_read_bulk_callback, port); 537 aircable_read_bulk_callback, port);
@@ -602,7 +604,7 @@ static struct usb_serial_driver aircable_device = {
602 .unthrottle = aircable_unthrottle, 604 .unthrottle = aircable_unthrottle,
603}; 605};
604 606
605static int __init aircable_init (void) 607static int __init aircable_init(void)
606{ 608{
607 int retval; 609 int retval;
608 retval = usb_serial_register(&aircable_device); 610 retval = usb_serial_register(&aircable_device);
@@ -619,7 +621,7 @@ failed_usb_register:
619 return retval; 621 return retval;
620} 622}
621 623
622static void __exit aircable_exit (void) 624static void __exit aircable_exit(void)
623{ 625{
624 usb_deregister(&aircable_driver); 626 usb_deregister(&aircable_driver);
625 usb_serial_deregister(&aircable_device); 627 usb_serial_deregister(&aircable_device);
diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c
index 725b6b94c274..0798c14ce787 100644
--- a/drivers/usb/serial/airprime.c
+++ b/drivers/usb/serial/airprime.c
@@ -68,8 +68,9 @@ static int airprime_send_setup(struct usb_serial_port *port)
68 val |= 0x02; 68 val |= 0x02;
69 69
70 return usb_control_msg(serial->dev, 70 return usb_control_msg(serial->dev,
71 usb_rcvctrlpipe(serial->dev, 0), 71 usb_rcvctrlpipe(serial->dev, 0),
72 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); 72 0x22, 0x21, val, 0, NULL, 0,
73 USB_CTRL_SET_TIMEOUT);
73 } 74 }
74 75
75 return 0; 76 return 0;
@@ -90,17 +91,19 @@ static void airprime_read_bulk_callback(struct urb *urb)
90 __func__, status); 91 __func__, status);
91 return; 92 return;
92 } 93 }
93 usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); 94 usb_serial_debug_data(debug, &port->dev, __func__,
95 urb->actual_length, data);
94 96
95 tty = port->tty; 97 tty = port->tty;
96 if (tty && urb->actual_length) { 98 if (tty && urb->actual_length) {
97 tty_insert_flip_string (tty, data, urb->actual_length); 99 tty_insert_flip_string(tty, data, urb->actual_length);
98 tty_flip_buffer_push (tty); 100 tty_flip_buffer_push(tty);
99 } 101 }
100 102
101 result = usb_submit_urb (urb, GFP_ATOMIC); 103 result = usb_submit_urb(urb, GFP_ATOMIC);
102 if (result) 104 if (result)
103 dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", 105 dev_err(&port->dev,
106 "%s - failed resubmitting read urb, error %d\n",
104 __func__, result); 107 __func__, result);
105 return; 108 return;
106} 109}
@@ -115,7 +118,7 @@ static void airprime_write_bulk_callback(struct urb *urb)
115 dbg("%s - port %d", __func__, port->number); 118 dbg("%s - port %d", __func__, port->number);
116 119
117 /* free up the transfer buffer, as usb_free_urb() does not do this */ 120 /* free up the transfer buffer, as usb_free_urb() does not do this */
118 kfree (urb->transfer_buffer); 121 kfree(urb->transfer_buffer);
119 122
120 if (status) 123 if (status)
121 dbg("%s - nonzero write bulk status received: %d", 124 dbg("%s - nonzero write bulk status received: %d",
@@ -171,7 +174,7 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
171 } 174 }
172 usb_fill_bulk_urb(urb, serial->dev, 175 usb_fill_bulk_urb(urb, serial->dev,
173 usb_rcvbulkpipe(serial->dev, 176 usb_rcvbulkpipe(serial->dev,
174 port->bulk_out_endpointAddress), 177 port->bulk_out_endpointAddress),
175 buffer, buffer_size, 178 buffer, buffer_size,
176 airprime_read_bulk_callback, port); 179 airprime_read_bulk_callback, port);
177 result = usb_submit_urb(urb, GFP_KERNEL); 180 result = usb_submit_urb(urb, GFP_KERNEL);
@@ -183,7 +186,8 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
183 __func__, i, port->number, result); 186 __func__, i, port->number, result);
184 goto errout; 187 goto errout;
185 } 188 }
186 /* remember this urb so we can kill it when the port is closed */ 189 /* remember this urb so we can kill it when the
190 port is closed */
187 priv->read_urbp[i] = urb; 191 priv->read_urbp[i] = urb;
188 } 192 }
189 193
@@ -192,22 +196,22 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
192 goto out; 196 goto out;
193 197
194 errout: 198 errout:
195 /* some error happened, cancel any submitted urbs and clean up anything that 199 /* some error happened, cancel any submitted urbs and clean up
196 got allocated successfully */ 200 anything that got allocated successfully */
197 201
198 while (i-- != 0) { 202 while (i-- != 0) {
199 urb = priv->read_urbp[i]; 203 urb = priv->read_urbp[i];
200 buffer = urb->transfer_buffer; 204 buffer = urb->transfer_buffer;
201 usb_kill_urb (urb); 205 usb_kill_urb(urb);
202 usb_free_urb (urb); 206 usb_free_urb(urb);
203 kfree (buffer); 207 kfree(buffer);
204 } 208 }
205 209
206 out: 210 out:
207 return result; 211 return result;
208} 212}
209 213
210static void airprime_close(struct usb_serial_port *port, struct file * filp) 214static void airprime_close(struct usb_serial_port *port, struct file *filp)
211{ 215{
212 struct airprime_private *priv = usb_get_serial_port_data(port); 216 struct airprime_private *priv = usb_get_serial_port_data(port);
213 int i; 217 int i;
@@ -220,16 +224,16 @@ static void airprime_close(struct usb_serial_port *port, struct file * filp)
220 mutex_lock(&port->serial->disc_mutex); 224 mutex_lock(&port->serial->disc_mutex);
221 if (!port->serial->disconnected) 225 if (!port->serial->disconnected)
222 airprime_send_setup(port); 226 airprime_send_setup(port);
223 mutex_lock(&port->serial->disc_mutex); 227 mutex_unlock(&port->serial->disc_mutex);
224 228
225 for (i = 0; i < NUM_READ_URBS; ++i) { 229 for (i = 0; i < NUM_READ_URBS; ++i) {
226 usb_kill_urb (priv->read_urbp[i]); 230 usb_kill_urb(priv->read_urbp[i]);
227 kfree (priv->read_urbp[i]->transfer_buffer); 231 kfree(priv->read_urbp[i]->transfer_buffer);
228 usb_free_urb (priv->read_urbp[i]); 232 usb_free_urb(priv->read_urbp[i]);
229 } 233 }
230 234
231 /* free up private structure */ 235 /* free up private structure */
232 kfree (priv); 236 kfree(priv);
233 usb_set_serial_port_data(port, NULL); 237 usb_set_serial_port_data(port, NULL);
234} 238}
235 239
@@ -259,10 +263,10 @@ static int airprime_write(struct usb_serial_port *port,
259 urb = usb_alloc_urb(0, GFP_ATOMIC); 263 urb = usb_alloc_urb(0, GFP_ATOMIC);
260 if (!urb) { 264 if (!urb) {
261 dev_err(&port->dev, "no more free urbs\n"); 265 dev_err(&port->dev, "no more free urbs\n");
262 kfree (buffer); 266 kfree(buffer);
263 return -ENOMEM; 267 return -ENOMEM;
264 } 268 }
265 memcpy (buffer, buf, count); 269 memcpy(buffer, buf, count);
266 270
267 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); 271 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
268 272
@@ -279,7 +283,7 @@ static int airprime_write(struct usb_serial_port *port,
279 "%s - usb_submit_urb(write bulk) failed with status = %d\n", 283 "%s - usb_submit_urb(write bulk) failed with status = %d\n",
280 __func__, status); 284 __func__, status);
281 count = status; 285 count = status;
282 kfree (buffer); 286 kfree(buffer);
283 } else { 287 } else {
284 spin_lock_irqsave(&priv->lock, flags); 288 spin_lock_irqsave(&priv->lock, flags);
285 ++priv->outstanding_urbs; 289 ++priv->outstanding_urbs;
@@ -287,7 +291,7 @@ static int airprime_write(struct usb_serial_port *port,
287 } 291 }
288 /* we are done with this urb, so let the host driver 292 /* we are done with this urb, so let the host driver
289 * really free it when it is finished with it */ 293 * really free it when it is finished with it */
290 usb_free_urb (urb); 294 usb_free_urb(urb);
291 return count; 295 return count;
292} 296}
293 297
@@ -315,8 +319,10 @@ static int __init airprime_init(void)
315{ 319{
316 int retval; 320 int retval;
317 321
318 airprime_device.num_ports = 322 airprime_device.num_ports = endpoints;
319 (endpoints > 0 && endpoints <= MAX_BULK_EPS) ? endpoints : NUM_BULK_EPS; 323 if (endpoints < 0 || endpoints >= MAX_BULK_EPS)
324 airprime_device.num_ports = NUM_BULK_EPS;
325
320 retval = usb_serial_register(&airprime_device); 326 retval = usb_serial_register(&airprime_device);
321 if (retval) 327 if (retval)
322 return retval; 328 return retval;
@@ -341,6 +347,7 @@ MODULE_LICENSE("GPL");
341module_param(debug, bool, S_IRUGO | S_IWUSR); 347module_param(debug, bool, S_IRUGO | S_IWUSR);
342MODULE_PARM_DESC(debug, "Debug enabled"); 348MODULE_PARM_DESC(debug, "Debug enabled");
343module_param(buffer_size, int, 0); 349module_param(buffer_size, int, 0);
344MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers in bytes (default 4096)"); 350MODULE_PARM_DESC(buffer_size,
351 "Size of the transfer buffers in bytes (default 4096)");
345module_param(endpoints, int, 0); 352module_param(endpoints, int, 0);
346MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)"); 353MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)");
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 599ab2e548a7..77895c8f8f31 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -24,7 +24,7 @@
24#include <linux/usb.h> 24#include <linux/usb.h>
25#include <linux/usb/serial.h> 25#include <linux/usb/serial.h>
26#include <linux/serial.h> 26#include <linux/serial.h>
27#include <asm/uaccess.h> 27#include <linux/uaccess.h>
28 28
29 29
30static int debug; 30static int debug;
@@ -246,29 +246,29 @@ static void ark3116_set_termios(struct usb_serial_port *port,
246 baud = tty_get_baud_rate(port->tty); 246 baud = tty_get_baud_rate(port->tty);
247 247
248 switch (baud) { 248 switch (baud) {
249 case 75: 249 case 75:
250 case 150: 250 case 150:
251 case 300: 251 case 300:
252 case 600: 252 case 600:
253 case 1200: 253 case 1200:
254 case 1800: 254 case 1800:
255 case 2400: 255 case 2400:
256 case 4800: 256 case 4800:
257 case 9600: 257 case 9600:
258 case 19200: 258 case 19200:
259 case 38400: 259 case 38400:
260 case 57600: 260 case 57600:
261 case 115200: 261 case 115200:
262 case 230400: 262 case 230400:
263 case 460800: 263 case 460800:
264 /* Report the resulting rate back to the caller */ 264 /* Report the resulting rate back to the caller */
265 tty_encode_baud_rate(port->tty, baud, baud); 265 tty_encode_baud_rate(port->tty, baud, baud);
266 break; 266 break;
267 /* set 9600 as default (if given baudrate is invalid for example) */ 267 /* set 9600 as default (if given baudrate is invalid for example) */
268 default: 268 default:
269 tty_encode_baud_rate(port->tty, 9600, 9600); 269 tty_encode_baud_rate(port->tty, 9600, 9600);
270 case 0: 270 case 0:
271 baud = 9600; 271 baud = 9600;
272 } 272 }
273 273
274 /* 274 /*
@@ -380,19 +380,19 @@ static int ark3116_ioctl(struct usb_serial_port *port, struct file *file,
380 switch (cmd) { 380 switch (cmd) {
381 case TIOCGSERIAL: 381 case TIOCGSERIAL:
382 /* XXX: Some of these values are probably wrong. */ 382 /* XXX: Some of these values are probably wrong. */
383 memset(&serstruct, 0, sizeof (serstruct)); 383 memset(&serstruct, 0, sizeof(serstruct));
384 serstruct.type = PORT_16654; 384 serstruct.type = PORT_16654;
385 serstruct.line = port->serial->minor; 385 serstruct.line = port->serial->minor;
386 serstruct.port = port->number; 386 serstruct.port = port->number;
387 serstruct.custom_divisor = 0; 387 serstruct.custom_divisor = 0;
388 serstruct.baud_base = 460800; 388 serstruct.baud_base = 460800;
389 389
390 if (copy_to_user(user_arg, &serstruct, sizeof (serstruct))) 390 if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
391 return -EFAULT; 391 return -EFAULT;
392 392
393 return 0; 393 return 0;
394 case TIOCSSERIAL: 394 case TIOCSSERIAL:
395 if (copy_from_user(&serstruct, user_arg, sizeof (serstruct))) 395 if (copy_from_user(&serstruct, user_arg, sizeof(serstruct)))
396 return -EFAULT; 396 return -EFAULT;
397 return 0; 397 return 0;
398 default: 398 default:
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index d947d955bceb..ba28fdc9ccd2 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -130,7 +130,7 @@ static int ch341_get_status(struct usb_device *dev)
130 return -ENOMEM; 130 return -ENOMEM;
131 131
132 r = ch341_control_in(dev, 0x95, 0x0706, 0, buffer, size); 132 r = ch341_control_in(dev, 0x95, 0x0706, 0, buffer, size);
133 if ( r < 0) 133 if (r < 0)
134 goto out; 134 goto out;
135 135
136 /* Not having the datasheet for the CH341, we ignore the bytes returned 136 /* Not having the datasheet for the CH341, we ignore the bytes returned
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c7329f43d9c9..5b349ece7247 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -133,6 +133,14 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
133static struct usb_device_id id_table_combined [] = { 133static struct usb_device_id id_table_combined [] = {
134 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, 134 { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
135 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, 135 { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
136 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
137 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
138 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
139 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
140 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
141 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
142 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
143 { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
136 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, 144 { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
137 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, 145 { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
138 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, 146 { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 6da539ede0ee..504edf8c3a3f 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -40,6 +40,17 @@
40/* AlphaMicro Components AMC-232USB01 device */ 40/* AlphaMicro Components AMC-232USB01 device */
41#define FTDI_AMC232_PID 0xFF00 /* Product Id */ 41#define FTDI_AMC232_PID 0xFF00 /* Product Id */
42 42
43/* SCS HF Radio Modems PID's (http://www.scs-ptc.com) */
44/* the VID is the standard ftdi vid (FTDI_VID) */
45#define FTDI_SCS_DEVICE_0_PID 0xD010 /* SCS PTC-IIusb */
46#define FTDI_SCS_DEVICE_1_PID 0xD011 /* SCS Tracker / DSP TNC */
47#define FTDI_SCS_DEVICE_2_PID 0xD012
48#define FTDI_SCS_DEVICE_3_PID 0xD013
49#define FTDI_SCS_DEVICE_4_PID 0xD014
50#define FTDI_SCS_DEVICE_5_PID 0xD015
51#define FTDI_SCS_DEVICE_6_PID 0xD016
52#define FTDI_SCS_DEVICE_7_PID 0xD017
53
43/* ACT Solutions HomePro ZWave interface (http://www.act-solutions.com/HomePro.htm) */ 54/* ACT Solutions HomePro ZWave interface (http://www.act-solutions.com/HomePro.htm) */
44#define FTDI_ACTZWAVE_PID 0xF2D0 55#define FTDI_ACTZWAVE_PID 0xF2D0
45 56
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 6bcb82d3911a..78f2f6db494d 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1713,7 +1713,7 @@ static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file,
1713{ 1713{
1714 struct moschip_port *mos7840_port; 1714 struct moschip_port *mos7840_port;
1715 unsigned int mcr; 1715 unsigned int mcr;
1716 unsigned int status; 1716 int status;
1717 1717
1718 dbg("%s - port %d", __func__, port->number); 1718 dbg("%s - port %d", __func__, port->number);
1719 1719
@@ -1740,11 +1740,10 @@ static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file,
1740 1740
1741 mos7840_port->shadowMCR = mcr; 1741 mos7840_port->shadowMCR = mcr;
1742 1742
1743 status = 0;
1744 status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr); 1743 status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
1745 if (status < 0) { 1744 if (status < 0) {
1746 dbg("setting MODEM_CONTROL_REGISTER Failed\n"); 1745 dbg("setting MODEM_CONTROL_REGISTER Failed\n");
1747 return -1; 1746 return status;
1748 } 1747 }
1749 1748
1750 return 0; 1749 return 0;
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index 0f6d234d699b..3d9249632ae1 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -123,7 +123,8 @@ config USB_STORAGE_ALAUDA
123 123
124config USB_STORAGE_ONETOUCH 124config USB_STORAGE_ONETOUCH
125 bool "Support OneTouch Button on Maxtor Hard Drives" 125 bool "Support OneTouch Button on Maxtor Hard Drives"
126 depends on USB_STORAGE && INPUT_EVDEV 126 depends on USB_STORAGE
127 depends on INPUT=y || INPUT=USB_STORAGE
127 help 128 help
128 Say Y here to include additional code to support the Maxtor OneTouch 129 Say Y here to include additional code to support the Maxtor OneTouch
129 USB hard drive's onetouch button. 130 USB hard drive's onetouch button.
diff --git a/drivers/usb/storage/libusual.c b/drivers/usb/storage/libusual.c
index a28d49122e7a..d617e8ae6b00 100644
--- a/drivers/usb/storage/libusual.c
+++ b/drivers/usb/storage/libusual.c
@@ -135,7 +135,7 @@ static int usu_probe(struct usb_interface *intf,
135 stat[type].fls |= USU_MOD_FL_THREAD; 135 stat[type].fls |= USU_MOD_FL_THREAD;
136 spin_unlock_irqrestore(&usu_lock, flags); 136 spin_unlock_irqrestore(&usu_lock, flags);
137 137
138 task = kthread_run(usu_probe_thread, (void*)type, "libusual_%d", type); 138 task = kthread_run(usu_probe_thread, (void*)type, "libusual_%ld", type);
139 if (IS_ERR(task)) { 139 if (IS_ERR(task)) {
140 rc = PTR_ERR(task); 140 rc = PTR_ERR(task);
141 printk(KERN_WARNING "libusual: " 141 printk(KERN_WARNING "libusual: "
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index dfd42fe9e5f0..98b89ea9e312 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -38,7 +38,7 @@
38#include "onetouch.h" 38#include "onetouch.h"
39#include "debug.h" 39#include "debug.h"
40 40
41void onetouch_release_input(void *onetouch_); 41static void onetouch_release_input(void *onetouch_);
42 42
43struct usb_onetouch { 43struct usb_onetouch {
44 char name[128]; 44 char name[128];
@@ -223,7 +223,7 @@ int onetouch_connect_input(struct us_data *ss)
223 return error; 223 return error;
224} 224}
225 225
226void onetouch_release_input(void *onetouch_) 226static void onetouch_release_input(void *onetouch_)
227{ 227{
228 struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_; 228 struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;
229 229
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 732bf52a775e..a0ed889230aa 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -44,7 +44,8 @@
44 * running with this patch. 44 * running with this patch.
45 * Send your submission to either Phil Dibowitz <phil@ipom.com> or 45 * Send your submission to either Phil Dibowitz <phil@ipom.com> or
46 * Alan Stern <stern@rowland.harvard.edu>, and don't forget to CC: the 46 * Alan Stern <stern@rowland.harvard.edu>, and don't forget to CC: the
47 * USB development list <linux-usb-devel@lists.sourceforge.net>. 47 * USB development list <linux-usb@vger.kernel.org> and the USB storage list
48 * <usb-storage@lists.one-eyed-alien.net>
48 */ 49 */
49 50
50/* patch submitted by Vivian Bregier <Vivian.Bregier@imag.fr> 51/* patch submitted by Vivian Bregier <Vivian.Bregier@imag.fr>
@@ -557,6 +558,13 @@ UNUSUAL_DEV( 0x04e6, 0x1010, 0x0000, 0x9999,
557 US_FL_SINGLE_LUN), 558 US_FL_SINGLE_LUN),
558#endif 559#endif
559 560
561/* Reported by Dmitry Khlystov <adminimus@gmail.com> */
562UNUSUAL_DEV( 0x04e8, 0x507c, 0x0220, 0x0220,
563 "Samsung",
564 "YP-U3",
565 US_SC_DEVICE, US_PR_DEVICE, NULL,
566 US_FL_MAX_SECTORS_64),
567
560/* Reported by Bob Sass <rls@vectordb.com> -- only rev 1.33 tested */ 568/* Reported by Bob Sass <rls@vectordb.com> -- only rev 1.33 tested */
561UNUSUAL_DEV( 0x050d, 0x0115, 0x0133, 0x0133, 569UNUSUAL_DEV( 0x050d, 0x0115, 0x0133, 0x0133,
562 "Belkin", 570 "Belkin",
@@ -1200,6 +1208,17 @@ UNUSUAL_DEV( 0x084d, 0x0011, 0x0110, 0x0110,
1200 US_SC_DEVICE, US_PR_DEVICE, NULL, 1208 US_SC_DEVICE, US_PR_DEVICE, NULL,
1201 US_FL_BULK32), 1209 US_FL_BULK32),
1202 1210
1211/* Andrew Lunn <andrew@lunn.ch>
1212 * PanDigital Digital Picture Frame. Does not like ALLOW_MEDIUM_REMOVAL
1213 * on LUN 4.
1214 * Note: Vend:Prod clash with "Ltd Maxell WS30 Slim Digital Camera"
1215*/
1216UNUSUAL_DEV( 0x0851, 0x1543, 0x0200, 0x0200,
1217 "PanDigital",
1218 "Photo Frame",
1219 US_SC_DEVICE, US_PR_DEVICE, NULL,
1220 US_FL_NOT_LOCKABLE),
1221
1203/* Submitted by Jan De Luyck <lkml@kcore.org> */ 1222/* Submitted by Jan De Luyck <lkml@kcore.org> */
1204UNUSUAL_DEV( 0x08bd, 0x1100, 0x0000, 0x0000, 1223UNUSUAL_DEV( 0x08bd, 0x1100, 0x0000, 0x0000,
1205 "CITIZEN", 1224 "CITIZEN",
@@ -1342,6 +1361,13 @@ UNUSUAL_DEV( 0x0d96, 0x410a, 0x0001, 0xffff,
1342 US_SC_DEVICE, US_PR_DEVICE, NULL, 1361 US_SC_DEVICE, US_PR_DEVICE, NULL,
1343 US_FL_FIX_INQUIRY), 1362 US_FL_FIX_INQUIRY),
1344 1363
1364/* Reported by Rohan Hart <rohan.hart17@gmail.com> */
1365UNUSUAL_DEV( 0x2770, 0x915d, 0x0010, 0x0010,
1366 "INTOVA",
1367 "Pixtreme",
1368 US_SC_DEVICE, US_PR_DEVICE, NULL,
1369 US_FL_FIX_CAPACITY ),
1370
1345/* 1371/*
1346 * Entry for Jenoptik JD 5200z3 1372 * Entry for Jenoptik JD 5200z3
1347 * 1373 *
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index a856effad3bd..e268aacb773a 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -539,7 +539,8 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id)
539 " has %s in unusual_devs.h (kernel" 539 " has %s in unusual_devs.h (kernel"
540 " %s)\n" 540 " %s)\n"
541 " Please send a copy of this message to " 541 " Please send a copy of this message to "
542 "<linux-usb-devel@lists.sourceforge.net>\n", 542 "<linux-usb@vger.kernel.org> and "
543 "<usb-storage@lists.one-eyed-alien.net>\n",
543 le16_to_cpu(ddesc->idVendor), 544 le16_to_cpu(ddesc->idVendor),
544 le16_to_cpu(ddesc->idProduct), 545 le16_to_cpu(ddesc->idProduct),
545 le16_to_cpu(ddesc->bcdDevice), 546 le16_to_cpu(ddesc->bcdDevice),
diff --git a/include/linux/usb/c67x00.h b/include/linux/usb/c67x00.h
new file mode 100644
index 000000000000..83c6b45470ca
--- /dev/null
+++ b/include/linux/usb/c67x00.h
@@ -0,0 +1,48 @@
1/*
2 * usb_c67x00.h: platform definitions for the Cypress C67X00 USB chip
3 *
4 * Copyright (C) 2006-2008 Barco N.V.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
19 * MA 02110-1301 USA.
20 */
21
22#ifndef _LINUX_USB_C67X00_H
23#define _LINUX_USB_C67X00_H
24
25/* SIE configuration */
26#define C67X00_SIE_UNUSED 0
27#define C67X00_SIE_HOST 1
28#define C67X00_SIE_PERIPHERAL_A 2 /* peripheral on A port */
29#define C67X00_SIE_PERIPHERAL_B 3 /* peripheral on B port */
30
31#define c67x00_sie_config(config, n) (((config)>>(4*(n)))&0x3)
32
33#define C67X00_SIE1_UNUSED (C67X00_SIE_UNUSED << 0)
34#define C67X00_SIE1_HOST (C67X00_SIE_HOST << 0)
35#define C67X00_SIE1_PERIPHERAL_A (C67X00_SIE_PERIPHERAL_A << 0)
36#define C67X00_SIE1_PERIPHERAL_B (C67X00_SIE_PERIPHERAL_B << 0)
37
38#define C67X00_SIE2_UNUSED (C67X00_SIE_UNUSED << 4)
39#define C67X00_SIE2_HOST (C67X00_SIE_HOST << 4)
40#define C67X00_SIE2_PERIPHERAL_A (C67X00_SIE_PERIPHERAL_A << 4)
41#define C67X00_SIE2_PERIPHERAL_B (C67X00_SIE_PERIPHERAL_B << 4)
42
43struct c67x00_platform_data {
44 int sie_config; /* SIEs config (C67X00_SIEx_*) */
45 unsigned long hpi_regstep; /* Step between HPI registers */
46};
47
48#endif /* _LINUX_USB_C67X00_H */
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 7e0d3084f76c..73a2f4eb1f7a 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -455,7 +455,7 @@ struct usb_encryption_descriptor {
455 455
456/*-------------------------------------------------------------------------*/ 456/*-------------------------------------------------------------------------*/
457 457
458/* USB_DT_BOS: group of wireless capabilities */ 458/* USB_DT_BOS: group of device-level capabilities */
459struct usb_bos_descriptor { 459struct usb_bos_descriptor {
460 __u8 bLength; 460 __u8 bLength;
461 __u8 bDescriptorType; 461 __u8 bDescriptorType;
@@ -501,6 +501,16 @@ struct usb_wireless_cap_descriptor { /* Ultra Wide Band */
501 __u8 bReserved; 501 __u8 bReserved;
502} __attribute__((packed)); 502} __attribute__((packed));
503 503
504#define USB_CAP_TYPE_EXT 2
505
506struct usb_ext_cap_descriptor { /* Link Power Management */
507 __u8 bLength;
508 __u8 bDescriptorType;
509 __u8 bDevCapabilityType;
510 __u8 bmAttributes;
511#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */
512} __attribute__((packed));
513
504/*-------------------------------------------------------------------------*/ 514/*-------------------------------------------------------------------------*/
505 515
506/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with 516/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index d8128f7102c9..cf468fbdbf8e 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -114,6 +114,8 @@ struct usb_ep_ops {
114 int (*dequeue) (struct usb_ep *ep, struct usb_request *req); 114 int (*dequeue) (struct usb_ep *ep, struct usb_request *req);
115 115
116 int (*set_halt) (struct usb_ep *ep, int value); 116 int (*set_halt) (struct usb_ep *ep, int value);
117 int (*set_wedge) (struct usb_ep *ep);
118
117 int (*fifo_status) (struct usb_ep *ep); 119 int (*fifo_status) (struct usb_ep *ep);
118 void (*fifo_flush) (struct usb_ep *ep); 120 void (*fifo_flush) (struct usb_ep *ep);
119}; 121};
@@ -349,6 +351,25 @@ static inline int usb_ep_clear_halt(struct usb_ep *ep)
349} 351}
350 352
351/** 353/**
354 * usb_ep_set_wedge - sets the halt feature and ignores clear requests
355 * @ep: the endpoint being wedged
356 *
357 * Use this to stall an endpoint and ignore CLEAR_FEATURE(HALT_ENDPOINT)
358 * requests. If the gadget driver clears the halt status, it will
359 * automatically unwedge the endpoint.
360 *
361 * Returns zero on success, else negative errno.
362 */
363static inline int
364usb_ep_set_wedge(struct usb_ep *ep)
365{
366 if (ep->ops->set_wedge)
367 return ep->ops->set_wedge(ep);
368 else
369 return ep->ops->set_halt(ep, 1);
370}
371
372/**
352 * usb_ep_fifo_status - returns number of bytes in fifo, or error 373 * usb_ep_fifo_status - returns number of bytes in fifo, or error
353 * @ep: the endpoint whose fifo status is being checked. 374 * @ep: the endpoint whose fifo status is being checked.
354 * 375 *
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 15:18:08 -0500