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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/bluetooth
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/Kconfig168
-rw-r--r--drivers/bluetooth/Makefile19
-rw-r--r--drivers/bluetooth/bcm203x.c314
-rw-r--r--drivers/bluetooth/bfusb.c806
-rw-r--r--drivers/bluetooth/bluecard_cs.c1114
-rw-r--r--drivers/bluetooth/bpa10x.c657
-rw-r--r--drivers/bluetooth/bt3c_cs.c960
-rw-r--r--drivers/bluetooth/btuart_cs.c880
-rw-r--r--drivers/bluetooth/dtl1_cs.c832
-rw-r--r--drivers/bluetooth/hci_bcsp.c749
-rw-r--r--drivers/bluetooth/hci_bcsp.h70
-rw-r--r--drivers/bluetooth/hci_h4.c282
-rw-r--r--drivers/bluetooth/hci_h4.h44
-rw-r--r--drivers/bluetooth/hci_ldisc.c593
-rw-r--r--drivers/bluetooth/hci_uart.h82
-rw-r--r--drivers/bluetooth/hci_usb.c1075
-rw-r--r--drivers/bluetooth/hci_usb.h128
-rw-r--r--drivers/bluetooth/hci_vhci.c364
-rw-r--r--drivers/bluetooth/hci_vhci.h50
19 files changed, 9187 insertions, 0 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
new file mode 100644
index 000000000000..543f93e0f23f
--- /dev/null
+++ b/drivers/bluetooth/Kconfig
@@ -0,0 +1,168 @@
1
2menu "Bluetooth device drivers"
3 depends on BT
4
5config BT_HCIUSB
6 tristate "HCI USB driver"
7 depends on USB
8 help
9 Bluetooth HCI USB driver.
10 This driver is required if you want to use Bluetooth devices with
11 USB interface.
12
13 Say Y here to compile support for Bluetooth USB devices into the
14 kernel or say M to compile it as module (hci_usb).
15
16config BT_HCIUSB_SCO
17 bool "SCO (voice) support"
18 depends on BT_HCIUSB
19 help
20 This option enables the SCO support in the HCI USB driver. You need this
21 to transmit voice data with your Bluetooth USB device.
22
23 Say Y here to compile support for SCO over HCI USB.
24
25config BT_HCIUART
26 tristate "HCI UART driver"
27 help
28 Bluetooth HCI UART driver.
29 This driver is required if you want to use Bluetooth devices with
30 serial port interface. You will also need this driver if you have
31 UART based Bluetooth PCMCIA and CF devices like Xircom Credit Card
32 adapter and BrainBoxes Bluetooth PC Card.
33
34 Say Y here to compile support for Bluetooth UART devices into the
35 kernel or say M to compile it as module (hci_uart).
36
37config BT_HCIUART_H4
38 bool "UART (H4) protocol support"
39 depends on BT_HCIUART
40 help
41 UART (H4) is serial protocol for communication between Bluetooth
42 device and host. This protocol is required for most Bluetooth devices
43 with UART interface, including PCMCIA and CF cards.
44
45 Say Y here to compile support for HCI UART (H4) protocol.
46
47config BT_HCIUART_BCSP
48 bool "BCSP protocol support"
49 depends on BT_HCIUART
50 help
51 BCSP (BlueCore Serial Protocol) is serial protocol for communication
52 between Bluetooth device and host. This protocol is required for non
53 USB Bluetooth devices based on CSR BlueCore chip, including PCMCIA and
54 CF cards.
55
56 Say Y here to compile support for HCI BCSP protocol.
57
58config BT_HCIUART_BCSP_TXCRC
59 bool "Transmit CRC with every BCSP packet"
60 depends on BT_HCIUART_BCSP
61 help
62 If you say Y here, a 16-bit CRC checksum will be transmitted along with
63 every BCSP (BlueCore Serial Protocol) packet sent to the Bluetooth chip.
64 This increases reliability, but slightly reduces efficiency.
65
66config BT_HCIBCM203X
67 tristate "HCI BCM203x USB driver"
68 depends on USB
69 select FW_LOADER
70 help
71 Bluetooth HCI BCM203x USB driver.
72 This driver provides the firmware loading mechanism for the Broadcom
73 Blutonium based devices.
74
75 Say Y here to compile support for HCI BCM203x devices into the
76 kernel or say M to compile it as module (bcm203x).
77
78config BT_HCIBPA10X
79 tristate "HCI BPA10x USB driver"
80 depends on USB
81 help
82 Bluetooth HCI BPA10x USB driver.
83 This driver provides support for the Digianswer BPA 100/105 Bluetooth
84 sniffer devices.
85
86 Say Y here to compile support for HCI BPA10x devices into the
87 kernel or say M to compile it as module (bpa10x).
88
89config BT_HCIBFUSB
90 tristate "HCI BlueFRITZ! USB driver"
91 depends on USB
92 select FW_LOADER
93 help
94 Bluetooth HCI BlueFRITZ! USB driver.
95 This driver provides support for Bluetooth USB devices with AVM
96 interface:
97 AVM BlueFRITZ! USB
98
99 Say Y here to compile support for HCI BFUSB devices into the
100 kernel or say M to compile it as module (bfusb).
101
102config BT_HCIDTL1
103 tristate "HCI DTL1 (PC Card) driver"
104 depends on PCMCIA
105 help
106 Bluetooth HCI DTL1 (PC Card) driver.
107 This driver provides support for Bluetooth PCMCIA devices with
108 Nokia DTL1 interface:
109 Nokia Bluetooth Card
110 Socket Bluetooth CF Card
111
112 Say Y here to compile support for HCI DTL1 devices into the
113 kernel or say M to compile it as module (dtl1_cs).
114
115config BT_HCIBT3C
116 tristate "HCI BT3C (PC Card) driver"
117 depends on PCMCIA
118 select FW_LOADER
119 help
120 Bluetooth HCI BT3C (PC Card) driver.
121 This driver provides support for Bluetooth PCMCIA devices with
122 3Com BT3C interface:
123 3Com Bluetooth Card (3CRWB6096)
124 HP Bluetooth Card
125
126 Say Y here to compile support for HCI BT3C devices into the
127 kernel or say M to compile it as module (bt3c_cs).
128
129config BT_HCIBLUECARD
130 tristate "HCI BlueCard (PC Card) driver"
131 depends on PCMCIA
132 help
133 Bluetooth HCI BlueCard (PC Card) driver.
134 This driver provides support for Bluetooth PCMCIA devices with
135 Anycom BlueCard interface:
136 Anycom Bluetooth PC Card
137 Anycom Bluetooth CF Card
138
139 Say Y here to compile support for HCI BlueCard devices into the
140 kernel or say M to compile it as module (bluecard_cs).
141
142config BT_HCIBTUART
143 tristate "HCI UART (PC Card) device driver"
144 depends on PCMCIA
145 help
146 Bluetooth HCI UART (PC Card) driver.
147 This driver provides support for Bluetooth PCMCIA devices with
148 an UART interface:
149 Xircom CreditCard Bluetooth Adapter
150 Xircom RealPort2 Bluetooth Adapter
151 Sphinx PICO Card
152 H-Soft blue+Card
153 Cyber-blue Compact Flash Card
154
155 Say Y here to compile support for HCI UART devices into the
156 kernel or say M to compile it as module (btuart_cs).
157
158config BT_HCIVHCI
159 tristate "HCI VHCI (Virtual HCI device) driver"
160 help
161 Bluetooth Virtual HCI device driver.
162 This driver is required if you want to use HCI Emulation software.
163
164 Say Y here to compile support for virtual HCI devices into the
165 kernel or say M to compile it as module (hci_vhci).
166
167endmenu
168
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
new file mode 100644
index 000000000000..08c10e178e02
--- /dev/null
+++ b/drivers/bluetooth/Makefile
@@ -0,0 +1,19 @@
1#
2# Makefile for the Linux Bluetooth HCI device drivers.
3#
4
5obj-$(CONFIG_BT_HCIUSB) += hci_usb.o
6obj-$(CONFIG_BT_HCIVHCI) += hci_vhci.o
7obj-$(CONFIG_BT_HCIUART) += hci_uart.o
8obj-$(CONFIG_BT_HCIBCM203X) += bcm203x.o
9obj-$(CONFIG_BT_HCIBPA10X) += bpa10x.o
10obj-$(CONFIG_BT_HCIBFUSB) += bfusb.o
11obj-$(CONFIG_BT_HCIDTL1) += dtl1_cs.o
12obj-$(CONFIG_BT_HCIBT3C) += bt3c_cs.o
13obj-$(CONFIG_BT_HCIBLUECARD) += bluecard_cs.o
14obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
15
16hci_uart-y := hci_ldisc.o
17hci_uart-$(CONFIG_BT_HCIUART_H4) += hci_h4.o
18hci_uart-$(CONFIG_BT_HCIUART_BCSP) += hci_bcsp.o
19hci_uart-objs := $(hci_uart-y)
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
new file mode 100644
index 000000000000..5fd3e4cb7525
--- /dev/null
+++ b/drivers/bluetooth/bcm203x.c
@@ -0,0 +1,314 @@
1/*
2 *
3 * Broadcom Blutonium firmware driver
4 *
5 * Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
6 * Copyright (C) 2003 Marcel Holtmann <marcel@holtmann.org>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25#include <linux/config.h>
26#include <linux/module.h>
27
28#include <linux/kernel.h>
29#include <linux/init.h>
30#include <linux/slab.h>
31#include <linux/types.h>
32#include <linux/errno.h>
33#include <linux/timer.h>
34
35#include <linux/device.h>
36#include <linux/firmware.h>
37
38#include <linux/usb.h>
39
40#include <net/bluetooth/bluetooth.h>
41
42#ifndef CONFIG_BT_HCIBCM203X_DEBUG
43#undef BT_DBG
44#define BT_DBG(D...)
45#endif
46
47#define VERSION "1.0"
48
49static int ignore = 0;
50
51static struct usb_device_id bcm203x_table[] = {
52 /* Broadcom Blutonium (BCM2033) */
53 { USB_DEVICE(0x0a5c, 0x2033) },
54
55 { } /* Terminating entry */
56};
57
58MODULE_DEVICE_TABLE(usb, bcm203x_table);
59
60#define BCM203X_ERROR 0
61#define BCM203X_RESET 1
62#define BCM203X_LOAD_MINIDRV 2
63#define BCM203X_SELECT_MEMORY 3
64#define BCM203X_CHECK_MEMORY 4
65#define BCM203X_LOAD_FIRMWARE 5
66#define BCM203X_CHECK_FIRMWARE 6
67
68#define BCM203X_IN_EP 0x81
69#define BCM203X_OUT_EP 0x02
70
71struct bcm203x_data {
72 struct usb_device *udev;
73
74 unsigned long state;
75
76 struct timer_list timer;
77
78 struct urb *urb;
79 unsigned char *buffer;
80
81 unsigned char *fw_data;
82 unsigned int fw_size;
83 unsigned int fw_sent;
84};
85
86static void bcm203x_complete(struct urb *urb, struct pt_regs *regs)
87{
88 struct bcm203x_data *data = urb->context;
89 struct usb_device *udev = urb->dev;
90 int len;
91
92 BT_DBG("udev %p urb %p", udev, urb);
93
94 if (urb->status) {
95 BT_ERR("URB failed with status %d", urb->status);
96 data->state = BCM203X_ERROR;
97 return;
98 }
99
100 switch (data->state) {
101 case BCM203X_LOAD_MINIDRV:
102 memcpy(data->buffer, "#", 1);
103
104 usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
105 data->buffer, 1, bcm203x_complete, data);
106
107 data->state = BCM203X_SELECT_MEMORY;
108
109 mod_timer(&data->timer, jiffies + (HZ / 10));
110 break;
111
112 case BCM203X_SELECT_MEMORY:
113 usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
114 data->buffer, 32, bcm203x_complete, data, 1);
115
116 data->state = BCM203X_CHECK_MEMORY;
117
118 if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
119 BT_ERR("Can't submit URB");
120 break;
121
122 case BCM203X_CHECK_MEMORY:
123 if (data->buffer[0] != '#') {
124 BT_ERR("Memory select failed");
125 data->state = BCM203X_ERROR;
126 break;
127 }
128
129 data->state = BCM203X_LOAD_FIRMWARE;
130
131 case BCM203X_LOAD_FIRMWARE:
132 if (data->fw_sent == data->fw_size) {
133 usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
134 data->buffer, 32, bcm203x_complete, data, 1);
135
136 data->state = BCM203X_CHECK_FIRMWARE;
137 } else {
138 len = min_t(uint, data->fw_size - data->fw_sent, 4096);
139
140 usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
141 data->fw_data + data->fw_sent, len, bcm203x_complete, data);
142
143 data->fw_sent += len;
144 }
145
146 if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
147 BT_ERR("Can't submit URB");
148 break;
149
150 case BCM203X_CHECK_FIRMWARE:
151 if (data->buffer[0] != '.') {
152 BT_ERR("Firmware loading failed");
153 data->state = BCM203X_ERROR;
154 break;
155 }
156
157 data->state = BCM203X_RESET;
158 break;
159 }
160}
161
162static void bcm203x_timer(unsigned long user_data)
163{
164 struct bcm203x_data *data = (struct bcm203x_data *) user_data;
165
166 if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
167 BT_ERR("Can't submit URB");
168}
169
170static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id *id)
171{
172 const struct firmware *firmware;
173 struct usb_device *udev = interface_to_usbdev(intf);
174 struct bcm203x_data *data;
175 int size;
176
177 BT_DBG("intf %p id %p", intf, id);
178
179 if (ignore || (intf->cur_altsetting->desc.bInterfaceNumber != 0))
180 return -ENODEV;
181
182 data = kmalloc(sizeof(*data), GFP_KERNEL);
183 if (!data) {
184 BT_ERR("Can't allocate memory for data structure");
185 return -ENOMEM;
186 }
187
188 memset(data, 0, sizeof(*data));
189
190 data->udev = udev;
191 data->state = BCM203X_LOAD_MINIDRV;
192
193 data->urb = usb_alloc_urb(0, GFP_KERNEL);
194 if (!data->urb) {
195 BT_ERR("Can't allocate URB");
196 kfree(data);
197 return -ENOMEM;
198 }
199
200 if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) {
201 BT_ERR("Mini driver request failed");
202 usb_free_urb(data->urb);
203 kfree(data);
204 return -EIO;
205 }
206
207 BT_DBG("minidrv data %p size %d", firmware->data, firmware->size);
208
209 size = max_t(uint, firmware->size, 4096);
210
211 data->buffer = kmalloc(size, GFP_KERNEL);
212 if (!data->buffer) {
213 BT_ERR("Can't allocate memory for mini driver");
214 release_firmware(firmware);
215 usb_free_urb(data->urb);
216 kfree(data);
217 return -ENOMEM;
218 }
219
220 memcpy(data->buffer, firmware->data, firmware->size);
221
222 usb_fill_bulk_urb(data->urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
223 data->buffer, firmware->size, bcm203x_complete, data);
224
225 release_firmware(firmware);
226
227 if (request_firmware(&firmware, "BCM2033-FW.bin", &udev->dev) < 0) {
228 BT_ERR("Firmware request failed");
229 usb_free_urb(data->urb);
230 kfree(data->buffer);
231 kfree(data);
232 return -EIO;
233 }
234
235 BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
236
237 data->fw_data = kmalloc(firmware->size, GFP_KERNEL);
238 if (!data->fw_data) {
239 BT_ERR("Can't allocate memory for firmware image");
240 usb_free_urb(data->urb);
241 kfree(data->buffer);
242 kfree(data);
243 return -ENOMEM;
244 }
245
246 memcpy(data->fw_data, firmware->data, firmware->size);
247 data->fw_size = firmware->size;
248 data->fw_sent = 0;
249
250 release_firmware(firmware);
251
252 init_timer(&data->timer);
253 data->timer.function = bcm203x_timer;
254 data->timer.data = (unsigned long) data;
255
256 usb_set_intfdata(intf, data);
257
258 mod_timer(&data->timer, jiffies + HZ);
259
260 return 0;
261}
262
263static void bcm203x_disconnect(struct usb_interface *intf)
264{
265 struct bcm203x_data *data = usb_get_intfdata(intf);
266
267 BT_DBG("intf %p", intf);
268
269 usb_kill_urb(data->urb);
270
271 usb_set_intfdata(intf, NULL);
272
273 usb_free_urb(data->urb);
274 kfree(data->fw_data);
275 kfree(data->buffer);
276 kfree(data);
277}
278
279static struct usb_driver bcm203x_driver = {
280 .owner = THIS_MODULE,
281 .name = "bcm203x",
282 .probe = bcm203x_probe,
283 .disconnect = bcm203x_disconnect,
284 .id_table = bcm203x_table,
285};
286
287static int __init bcm203x_init(void)
288{
289 int err;
290
291 BT_INFO("Broadcom Blutonium firmware driver ver %s", VERSION);
292
293 err = usb_register(&bcm203x_driver);
294 if (err < 0)
295 BT_ERR("Failed to register USB driver");
296
297 return err;
298}
299
300static void __exit bcm203x_exit(void)
301{
302 usb_deregister(&bcm203x_driver);
303}
304
305module_init(bcm203x_init);
306module_exit(bcm203x_exit);
307
308module_param(ignore, bool, 0644);
309MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
310
311MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
312MODULE_DESCRIPTION("Broadcom Blutonium firmware driver ver " VERSION);
313MODULE_VERSION(VERSION);
314MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
new file mode 100644
index 000000000000..c42d7e6ac1c5
--- /dev/null
+++ b/drivers/bluetooth/bfusb.c
@@ -0,0 +1,806 @@
1/*
2 *
3 * AVM BlueFRITZ! USB driver
4 *
5 * Copyright (C) 2003 Marcel Holtmann <marcel@holtmann.org>
6 *
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
24#include <linux/config.h>
25#include <linux/module.h>
26
27#include <linux/kernel.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/types.h>
31#include <linux/sched.h>
32#include <linux/errno.h>
33#include <linux/skbuff.h>
34
35#include <linux/device.h>
36#include <linux/firmware.h>
37
38#include <linux/usb.h>
39
40#include <net/bluetooth/bluetooth.h>
41#include <net/bluetooth/hci_core.h>
42
43#ifndef CONFIG_BT_HCIBFUSB_DEBUG
44#undef BT_DBG
45#define BT_DBG(D...)
46#endif
47
48#define VERSION "1.1"
49
50static int ignore = 0;
51
52static struct usb_driver bfusb_driver;
53
54static struct usb_device_id bfusb_table[] = {
55 /* AVM BlueFRITZ! USB */
56 { USB_DEVICE(0x057c, 0x2200) },
57
58 { } /* Terminating entry */
59};
60
61MODULE_DEVICE_TABLE(usb, bfusb_table);
62
63
64#define BFUSB_MAX_BLOCK_SIZE 256
65
66#define BFUSB_BLOCK_TIMEOUT 3000
67
68#define BFUSB_TX_PROCESS 1
69#define BFUSB_TX_WAKEUP 2
70
71#define BFUSB_MAX_BULK_TX 2
72#define BFUSB_MAX_BULK_RX 2
73
74struct bfusb {
75 struct hci_dev *hdev;
76
77 unsigned long state;
78
79 struct usb_device *udev;
80
81 unsigned int bulk_in_ep;
82 unsigned int bulk_out_ep;
83 unsigned int bulk_pkt_size;
84
85 rwlock_t lock;
86
87 struct sk_buff_head transmit_q;
88
89 struct sk_buff *reassembly;
90
91 atomic_t pending_tx;
92 struct sk_buff_head pending_q;
93 struct sk_buff_head completed_q;
94};
95
96struct bfusb_scb {
97 struct urb *urb;
98};
99
100static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs);
101static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs);
102
103static struct urb *bfusb_get_completed(struct bfusb *bfusb)
104{
105 struct sk_buff *skb;
106 struct urb *urb = NULL;
107
108 BT_DBG("bfusb %p", bfusb);
109
110 skb = skb_dequeue(&bfusb->completed_q);
111 if (skb) {
112 urb = ((struct bfusb_scb *) skb->cb)->urb;
113 kfree_skb(skb);
114 }
115
116 return urb;
117}
118
119static void bfusb_unlink_urbs(struct bfusb *bfusb)
120{
121 struct sk_buff *skb;
122 struct urb *urb;
123
124 BT_DBG("bfusb %p", bfusb);
125
126 while ((skb = skb_dequeue(&bfusb->pending_q))) {
127 urb = ((struct bfusb_scb *) skb->cb)->urb;
128 usb_kill_urb(urb);
129 skb_queue_tail(&bfusb->completed_q, skb);
130 }
131
132 while ((urb = bfusb_get_completed(bfusb)))
133 usb_free_urb(urb);
134}
135
136
137static int bfusb_send_bulk(struct bfusb *bfusb, struct sk_buff *skb)
138{
139 struct bfusb_scb *scb = (void *) skb->cb;
140 struct urb *urb = bfusb_get_completed(bfusb);
141 int err, pipe;
142
143 BT_DBG("bfusb %p skb %p len %d", bfusb, skb, skb->len);
144
145 if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
146 return -ENOMEM;
147
148 pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
149
150 usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, skb->len,
151 bfusb_tx_complete, skb);
152
153 scb->urb = urb;
154
155 skb_queue_tail(&bfusb->pending_q, skb);
156
157 err = usb_submit_urb(urb, GFP_ATOMIC);
158 if (err) {
159 BT_ERR("%s bulk tx submit failed urb %p err %d",
160 bfusb->hdev->name, urb, err);
161 skb_unlink(skb);
162 usb_free_urb(urb);
163 } else
164 atomic_inc(&bfusb->pending_tx);
165
166 return err;
167}
168
169static void bfusb_tx_wakeup(struct bfusb *bfusb)
170{
171 struct sk_buff *skb;
172
173 BT_DBG("bfusb %p", bfusb);
174
175 if (test_and_set_bit(BFUSB_TX_PROCESS, &bfusb->state)) {
176 set_bit(BFUSB_TX_WAKEUP, &bfusb->state);
177 return;
178 }
179
180 do {
181 clear_bit(BFUSB_TX_WAKEUP, &bfusb->state);
182
183 while ((atomic_read(&bfusb->pending_tx) < BFUSB_MAX_BULK_TX) &&
184 (skb = skb_dequeue(&bfusb->transmit_q))) {
185 if (bfusb_send_bulk(bfusb, skb) < 0) {
186 skb_queue_head(&bfusb->transmit_q, skb);
187 break;
188 }
189 }
190
191 } while (test_bit(BFUSB_TX_WAKEUP, &bfusb->state));
192
193 clear_bit(BFUSB_TX_PROCESS, &bfusb->state);
194}
195
196static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs)
197{
198 struct sk_buff *skb = (struct sk_buff *) urb->context;
199 struct bfusb *bfusb = (struct bfusb *) skb->dev;
200
201 BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
202
203 atomic_dec(&bfusb->pending_tx);
204
205 if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
206 return;
207
208 if (!urb->status)
209 bfusb->hdev->stat.byte_tx += skb->len;
210 else
211 bfusb->hdev->stat.err_tx++;
212
213 read_lock(&bfusb->lock);
214
215 skb_unlink(skb);
216 skb_queue_tail(&bfusb->completed_q, skb);
217
218 bfusb_tx_wakeup(bfusb);
219
220 read_unlock(&bfusb->lock);
221}
222
223
224static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
225{
226 struct bfusb_scb *scb;
227 struct sk_buff *skb;
228 int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
229
230 BT_DBG("bfusb %p urb %p", bfusb, urb);
231
232 if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
233 return -ENOMEM;
234
235 if (!(skb = bt_skb_alloc(size, GFP_ATOMIC))) {
236 usb_free_urb(urb);
237 return -ENOMEM;
238 }
239
240 skb->dev = (void *) bfusb;
241
242 scb = (struct bfusb_scb *) skb->cb;
243 scb->urb = urb;
244
245 pipe = usb_rcvbulkpipe(bfusb->udev, bfusb->bulk_in_ep);
246
247 usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, size,
248 bfusb_rx_complete, skb);
249
250 skb_queue_tail(&bfusb->pending_q, skb);
251
252 err = usb_submit_urb(urb, GFP_ATOMIC);
253 if (err) {
254 BT_ERR("%s bulk rx submit failed urb %p err %d",
255 bfusb->hdev->name, urb, err);
256 skb_unlink(skb);
257 kfree_skb(skb);
258 usb_free_urb(urb);
259 }
260
261 return err;
262}
263
264static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *data, int len)
265{
266 BT_DBG("bfusb %p hdr 0x%02x data %p len %d", bfusb, hdr, data, len);
267
268 if (hdr & 0x10) {
269 BT_ERR("%s error in block", bfusb->hdev->name);
270 if (bfusb->reassembly)
271 kfree_skb(bfusb->reassembly);
272 bfusb->reassembly = NULL;
273 return -EIO;
274 }
275
276 if (hdr & 0x04) {
277 struct sk_buff *skb;
278 unsigned char pkt_type;
279 int pkt_len = 0;
280
281 if (bfusb->reassembly) {
282 BT_ERR("%s unexpected start block", bfusb->hdev->name);
283 kfree_skb(bfusb->reassembly);
284 bfusb->reassembly = NULL;
285 }
286
287 if (len < 1) {
288 BT_ERR("%s no packet type found", bfusb->hdev->name);
289 return -EPROTO;
290 }
291
292 pkt_type = *data++; len--;
293
294 switch (pkt_type) {
295 case HCI_EVENT_PKT:
296 if (len >= HCI_EVENT_HDR_SIZE) {
297 struct hci_event_hdr *hdr = (struct hci_event_hdr *) data;
298 pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
299 } else {
300 BT_ERR("%s event block is too short", bfusb->hdev->name);
301 return -EILSEQ;
302 }
303 break;
304
305 case HCI_ACLDATA_PKT:
306 if (len >= HCI_ACL_HDR_SIZE) {
307 struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) data;
308 pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
309 } else {
310 BT_ERR("%s data block is too short", bfusb->hdev->name);
311 return -EILSEQ;
312 }
313 break;
314
315 case HCI_SCODATA_PKT:
316 if (len >= HCI_SCO_HDR_SIZE) {
317 struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) data;
318 pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
319 } else {
320 BT_ERR("%s audio block is too short", bfusb->hdev->name);
321 return -EILSEQ;
322 }
323 break;
324 }
325
326 skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
327 if (!skb) {
328 BT_ERR("%s no memory for the packet", bfusb->hdev->name);
329 return -ENOMEM;
330 }
331
332 skb->dev = (void *) bfusb->hdev;
333 skb->pkt_type = pkt_type;
334
335 bfusb->reassembly = skb;
336 } else {
337 if (!bfusb->reassembly) {
338 BT_ERR("%s unexpected continuation block", bfusb->hdev->name);
339 return -EIO;
340 }
341 }
342
343 if (len > 0)
344 memcpy(skb_put(bfusb->reassembly, len), data, len);
345
346 if (hdr & 0x08) {
347 hci_recv_frame(bfusb->reassembly);
348 bfusb->reassembly = NULL;
349 }
350
351 return 0;
352}
353
354static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs)
355{
356 struct sk_buff *skb = (struct sk_buff *) urb->context;
357 struct bfusb *bfusb = (struct bfusb *) skb->dev;
358 unsigned char *buf = urb->transfer_buffer;
359 int count = urb->actual_length;
360 int err, hdr, len;
361
362 BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
363
364 read_lock(&bfusb->lock);
365
366 if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
367 goto unlock;
368
369 if (urb->status || !count)
370 goto resubmit;
371
372 bfusb->hdev->stat.byte_rx += count;
373
374 skb_put(skb, count);
375
376 while (count) {
377 hdr = buf[0] | (buf[1] << 8);
378
379 if (hdr & 0x4000) {
380 len = 0;
381 count -= 2;
382 buf += 2;
383 } else {
384 len = (buf[2] == 0) ? 256 : buf[2];
385 count -= 3;
386 buf += 3;
387 }
388
389 if (count < len) {
390 BT_ERR("%s block extends over URB buffer ranges",
391 bfusb->hdev->name);
392 }
393
394 if ((hdr & 0xe1) == 0xc1)
395 bfusb_recv_block(bfusb, hdr, buf, len);
396
397 count -= len;
398 buf += len;
399 }
400
401 skb_unlink(skb);
402 kfree_skb(skb);
403
404 bfusb_rx_submit(bfusb, urb);
405
406 read_unlock(&bfusb->lock);
407
408 return;
409
410resubmit:
411 urb->dev = bfusb->udev;
412
413 err = usb_submit_urb(urb, GFP_ATOMIC);
414 if (err) {
415 BT_ERR("%s bulk resubmit failed urb %p err %d",
416 bfusb->hdev->name, urb, err);
417 }
418
419unlock:
420 read_unlock(&bfusb->lock);
421}
422
423
424static int bfusb_open(struct hci_dev *hdev)
425{
426 struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
427 unsigned long flags;
428 int i, err;
429
430 BT_DBG("hdev %p bfusb %p", hdev, bfusb);
431
432 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
433 return 0;
434
435 write_lock_irqsave(&bfusb->lock, flags);
436
437 err = bfusb_rx_submit(bfusb, NULL);
438 if (!err) {
439 for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
440 bfusb_rx_submit(bfusb, NULL);
441 } else {
442 clear_bit(HCI_RUNNING, &hdev->flags);
443 }
444
445 write_unlock_irqrestore(&bfusb->lock, flags);
446
447 return err;
448}
449
450static int bfusb_flush(struct hci_dev *hdev)
451{
452 struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
453
454 BT_DBG("hdev %p bfusb %p", hdev, bfusb);
455
456 skb_queue_purge(&bfusb->transmit_q);
457
458 return 0;
459}
460
461static int bfusb_close(struct hci_dev *hdev)
462{
463 struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
464 unsigned long flags;
465
466 BT_DBG("hdev %p bfusb %p", hdev, bfusb);
467
468 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
469 return 0;
470
471 write_lock_irqsave(&bfusb->lock, flags);
472 write_unlock_irqrestore(&bfusb->lock, flags);
473
474 bfusb_unlink_urbs(bfusb);
475 bfusb_flush(hdev);
476
477 return 0;
478}
479
480static int bfusb_send_frame(struct sk_buff *skb)
481{
482 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
483 struct bfusb *bfusb;
484 struct sk_buff *nskb;
485 unsigned char buf[3];
486 int sent = 0, size, count;
487
488 BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, skb->pkt_type, skb->len);
489
490 if (!hdev) {
491 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
492 return -ENODEV;
493 }
494
495 if (!test_bit(HCI_RUNNING, &hdev->flags))
496 return -EBUSY;
497
498 bfusb = (struct bfusb *) hdev->driver_data;
499
500 switch (skb->pkt_type) {
501 case HCI_COMMAND_PKT:
502 hdev->stat.cmd_tx++;
503 break;
504 case HCI_ACLDATA_PKT:
505 hdev->stat.acl_tx++;
506 break;
507 case HCI_SCODATA_PKT:
508 hdev->stat.sco_tx++;
509 break;
510 };
511
512 /* Prepend skb with frame type */
513 memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
514
515 count = skb->len;
516
517 /* Max HCI frame size seems to be 1511 + 1 */
518 if (!(nskb = bt_skb_alloc(count + 32, GFP_ATOMIC))) {
519 BT_ERR("Can't allocate memory for new packet");
520 return -ENOMEM;
521 }
522
523 nskb->dev = (void *) bfusb;
524
525 while (count) {
526 size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
527
528 buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
529 buf[1] = 0x00;
530 buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
531
532 memcpy(skb_put(nskb, 3), buf, 3);
533 memcpy(skb_put(nskb, size), skb->data + sent, size);
534
535 sent += size;
536 count -= size;
537 }
538
539 /* Don't send frame with multiple size of bulk max packet */
540 if ((nskb->len % bfusb->bulk_pkt_size) == 0) {
541 buf[0] = 0xdd;
542 buf[1] = 0x00;
543 memcpy(skb_put(nskb, 2), buf, 2);
544 }
545
546 read_lock(&bfusb->lock);
547
548 skb_queue_tail(&bfusb->transmit_q, nskb);
549 bfusb_tx_wakeup(bfusb);
550
551 read_unlock(&bfusb->lock);
552
553 kfree_skb(skb);
554
555 return 0;
556}
557
558static void bfusb_destruct(struct hci_dev *hdev)
559{
560 struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
561
562 BT_DBG("hdev %p bfusb %p", hdev, bfusb);
563
564 kfree(bfusb);
565}
566
567static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
568{
569 return -ENOIOCTLCMD;
570}
571
572
573static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int count)
574{
575 unsigned char *buf;
576 int err, pipe, len, size, sent = 0;
577
578 BT_DBG("bfusb %p udev %p", bfusb, bfusb->udev);
579
580 BT_INFO("BlueFRITZ! USB loading firmware");
581
582 pipe = usb_sndctrlpipe(bfusb->udev, 0);
583
584 if (usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
585 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
586 BT_ERR("Can't change to loading configuration");
587 return -EBUSY;
588 }
589
590 bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
591
592 buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
593 if (!buf) {
594 BT_ERR("Can't allocate memory chunk for firmware");
595 return -ENOMEM;
596 }
597
598 pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
599
600 while (count) {
601 size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
602
603 memcpy(buf, firmware + sent, size);
604
605 err = usb_bulk_msg(bfusb->udev, pipe, buf, size,
606 &len, BFUSB_BLOCK_TIMEOUT);
607
608 if (err || (len != size)) {
609 BT_ERR("Error in firmware loading");
610 goto error;
611 }
612
613 sent += size;
614 count -= size;
615 }
616
617 if ((err = usb_bulk_msg(bfusb->udev, pipe, NULL, 0,
618 &len, BFUSB_BLOCK_TIMEOUT)) < 0) {
619 BT_ERR("Error in null packet request");
620 goto error;
621 }
622
623 pipe = usb_sndctrlpipe(bfusb->udev, 0);
624
625 if ((err = usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
626 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT)) < 0) {
627 BT_ERR("Can't change to running configuration");
628 goto error;
629 }
630
631 bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
632
633 BT_INFO("BlueFRITZ! USB device ready");
634
635 kfree(buf);
636 return 0;
637
638error:
639 kfree(buf);
640
641 pipe = usb_sndctrlpipe(bfusb->udev, 0);
642
643 usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
644 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
645
646 return err;
647}
648
649static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
650{
651 const struct firmware *firmware;
652 struct usb_device *udev = interface_to_usbdev(intf);
653 struct usb_host_endpoint *bulk_out_ep;
654 struct usb_host_endpoint *bulk_in_ep;
655 struct hci_dev *hdev;
656 struct bfusb *bfusb;
657
658 BT_DBG("intf %p id %p", intf, id);
659
660 if (ignore)
661 return -ENODEV;
662
663 /* Check number of endpoints */
664 if (intf->cur_altsetting->desc.bNumEndpoints < 2)
665 return -EIO;
666
667 bulk_out_ep = &intf->cur_altsetting->endpoint[0];
668 bulk_in_ep = &intf->cur_altsetting->endpoint[1];
669
670 if (!bulk_out_ep || !bulk_in_ep) {
671 BT_ERR("Bulk endpoints not found");
672 goto done;
673 }
674
675 /* Initialize control structure and load firmware */
676 if (!(bfusb = kmalloc(sizeof(struct bfusb), GFP_KERNEL))) {
677 BT_ERR("Can't allocate memory for control structure");
678 goto done;
679 }
680
681 memset(bfusb, 0, sizeof(struct bfusb));
682
683 bfusb->udev = udev;
684 bfusb->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress;
685 bfusb->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress;
686 bfusb->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
687
688 rwlock_init(&bfusb->lock);
689
690 bfusb->reassembly = NULL;
691
692 skb_queue_head_init(&bfusb->transmit_q);
693 skb_queue_head_init(&bfusb->pending_q);
694 skb_queue_head_init(&bfusb->completed_q);
695
696 if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
697 BT_ERR("Firmware request failed");
698 goto error;
699 }
700
701 BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
702
703 if (bfusb_load_firmware(bfusb, firmware->data, firmware->size) < 0) {
704 BT_ERR("Firmware loading failed");
705 goto release;
706 }
707
708 release_firmware(firmware);
709
710 /* Initialize and register HCI device */
711 hdev = hci_alloc_dev();
712 if (!hdev) {
713 BT_ERR("Can't allocate HCI device");
714 goto error;
715 }
716
717 bfusb->hdev = hdev;
718
719 hdev->type = HCI_USB;
720 hdev->driver_data = bfusb;
721 SET_HCIDEV_DEV(hdev, &intf->dev);
722
723 hdev->open = bfusb_open;
724 hdev->close = bfusb_close;
725 hdev->flush = bfusb_flush;
726 hdev->send = bfusb_send_frame;
727 hdev->destruct = bfusb_destruct;
728 hdev->ioctl = bfusb_ioctl;
729
730 hdev->owner = THIS_MODULE;
731
732 if (hci_register_dev(hdev) < 0) {
733 BT_ERR("Can't register HCI device");
734 hci_free_dev(hdev);
735 goto error;
736 }
737
738 usb_set_intfdata(intf, bfusb);
739
740 return 0;
741
742release:
743 release_firmware(firmware);
744
745error:
746 kfree(bfusb);
747
748done:
749 return -EIO;
750}
751
752static void bfusb_disconnect(struct usb_interface *intf)
753{
754 struct bfusb *bfusb = usb_get_intfdata(intf);
755 struct hci_dev *hdev = bfusb->hdev;
756
757 BT_DBG("intf %p", intf);
758
759 if (!hdev)
760 return;
761
762 usb_set_intfdata(intf, NULL);
763
764 bfusb_close(hdev);
765
766 if (hci_unregister_dev(hdev) < 0)
767 BT_ERR("Can't unregister HCI device %s", hdev->name);
768
769 hci_free_dev(hdev);
770}
771
772static struct usb_driver bfusb_driver = {
773 .owner = THIS_MODULE,
774 .name = "bfusb",
775 .probe = bfusb_probe,
776 .disconnect = bfusb_disconnect,
777 .id_table = bfusb_table,
778};
779
780static int __init bfusb_init(void)
781{
782 int err;
783
784 BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
785
786 if ((err = usb_register(&bfusb_driver)) < 0)
787 BT_ERR("Failed to register BlueFRITZ! USB driver");
788
789 return err;
790}
791
792static void __exit bfusb_exit(void)
793{
794 usb_deregister(&bfusb_driver);
795}
796
797module_init(bfusb_init);
798module_exit(bfusb_exit);
799
800module_param(ignore, bool, 0644);
801MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
802
803MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
804MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION);
805MODULE_VERSION(VERSION);
806MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
new file mode 100644
index 000000000000..e481cc411b5d
--- /dev/null
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -0,0 +1,1114 @@
1/*
2 *
3 * Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
6 *
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 version 2 as
10 * published by the Free Software Foundation;
11 *
12 * Software distributed under the License is distributed on an "AS
13 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 * implied. See the License for the specific language governing
15 * rights and limitations under the License.
16 *
17 * The initial developer of the original code is David A. Hinds
18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20 *
21 */
22
23#include <linux/config.h>
24#include <linux/module.h>
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/types.h>
30#include <linux/sched.h>
31#include <linux/delay.h>
32#include <linux/timer.h>
33#include <linux/errno.h>
34#include <linux/ptrace.h>
35#include <linux/ioport.h>
36#include <linux/spinlock.h>
37#include <linux/moduleparam.h>
38#include <linux/wait.h>
39
40#include <linux/skbuff.h>
41#include <asm/io.h>
42
43#include <pcmcia/version.h>
44#include <pcmcia/cs_types.h>
45#include <pcmcia/cs.h>
46#include <pcmcia/cistpl.h>
47#include <pcmcia/ciscode.h>
48#include <pcmcia/ds.h>
49#include <pcmcia/cisreg.h>
50
51#include <net/bluetooth/bluetooth.h>
52#include <net/bluetooth/hci_core.h>
53
54
55
56/* ======================== Module parameters ======================== */
57
58
59MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
60MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
61MODULE_LICENSE("GPL");
62
63
64
65/* ======================== Local structures ======================== */
66
67
68typedef struct bluecard_info_t {
69 dev_link_t link;
70 dev_node_t node;
71
72 struct hci_dev *hdev;
73
74 spinlock_t lock; /* For serializing operations */
75 struct timer_list timer; /* For LED control */
76
77 struct sk_buff_head txq;
78 unsigned long tx_state;
79
80 unsigned long rx_state;
81 unsigned long rx_count;
82 struct sk_buff *rx_skb;
83
84 unsigned char ctrl_reg;
85 unsigned long hw_state; /* Status of the hardware and LED control */
86} bluecard_info_t;
87
88
89static void bluecard_config(dev_link_t *link);
90static void bluecard_release(dev_link_t *link);
91static int bluecard_event(event_t event, int priority, event_callback_args_t *args);
92
93static dev_info_t dev_info = "bluecard_cs";
94
95static dev_link_t *bluecard_attach(void);
96static void bluecard_detach(dev_link_t *);
97
98static dev_link_t *dev_list = NULL;
99
100
101/* Default baud rate: 57600, 115200, 230400 or 460800 */
102#define DEFAULT_BAUD_RATE 230400
103
104
105/* Hardware states */
106#define CARD_READY 1
107#define CARD_HAS_PCCARD_ID 4
108#define CARD_HAS_POWER_LED 5
109#define CARD_HAS_ACTIVITY_LED 6
110
111/* Transmit states */
112#define XMIT_SENDING 1
113#define XMIT_WAKEUP 2
114#define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */
115#define XMIT_BUF_ONE_READY 6
116#define XMIT_BUF_TWO_READY 7
117#define XMIT_SENDING_READY 8
118
119/* Receiver states */
120#define RECV_WAIT_PACKET_TYPE 0
121#define RECV_WAIT_EVENT_HEADER 1
122#define RECV_WAIT_ACL_HEADER 2
123#define RECV_WAIT_SCO_HEADER 3
124#define RECV_WAIT_DATA 4
125
126/* Special packet types */
127#define PKT_BAUD_RATE_57600 0x80
128#define PKT_BAUD_RATE_115200 0x81
129#define PKT_BAUD_RATE_230400 0x82
130#define PKT_BAUD_RATE_460800 0x83
131
132
133/* These are the register offsets */
134#define REG_COMMAND 0x20
135#define REG_INTERRUPT 0x21
136#define REG_CONTROL 0x22
137#define REG_RX_CONTROL 0x24
138#define REG_CARD_RESET 0x30
139#define REG_LED_CTRL 0x30
140
141/* REG_COMMAND */
142#define REG_COMMAND_TX_BUF_ONE 0x01
143#define REG_COMMAND_TX_BUF_TWO 0x02
144#define REG_COMMAND_RX_BUF_ONE 0x04
145#define REG_COMMAND_RX_BUF_TWO 0x08
146#define REG_COMMAND_RX_WIN_ONE 0x00
147#define REG_COMMAND_RX_WIN_TWO 0x10
148
149/* REG_CONTROL */
150#define REG_CONTROL_BAUD_RATE_57600 0x00
151#define REG_CONTROL_BAUD_RATE_115200 0x01
152#define REG_CONTROL_BAUD_RATE_230400 0x02
153#define REG_CONTROL_BAUD_RATE_460800 0x03
154#define REG_CONTROL_RTS 0x04
155#define REG_CONTROL_BT_ON 0x08
156#define REG_CONTROL_BT_RESET 0x10
157#define REG_CONTROL_BT_RES_PU 0x20
158#define REG_CONTROL_INTERRUPT 0x40
159#define REG_CONTROL_CARD_RESET 0x80
160
161/* REG_RX_CONTROL */
162#define RTS_LEVEL_SHIFT_BITS 0x02
163
164
165
166/* ======================== LED handling routines ======================== */
167
168
169static void bluecard_activity_led_timeout(u_long arg)
170{
171 bluecard_info_t *info = (bluecard_info_t *)arg;
172 unsigned int iobase = info->link.io.BasePort1;
173
174 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
175 return;
176
177 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
178 /* Disable activity LED */
179 outb(0x08 | 0x20, iobase + 0x30);
180 } else {
181 /* Disable power LED */
182 outb(0x00, iobase + 0x30);
183 }
184}
185
186
187static void bluecard_enable_activity_led(bluecard_info_t *info)
188{
189 unsigned int iobase = info->link.io.BasePort1;
190
191 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
192 return;
193
194 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
195 /* Enable activity LED */
196 outb(0x10 | 0x40, iobase + 0x30);
197
198 /* Stop the LED after HZ/4 */
199 mod_timer(&(info->timer), jiffies + HZ / 4);
200 } else {
201 /* Enable power LED */
202 outb(0x08 | 0x20, iobase + 0x30);
203
204 /* Stop the LED after HZ/2 */
205 mod_timer(&(info->timer), jiffies + HZ / 2);
206 }
207}
208
209
210
211/* ======================== Interrupt handling ======================== */
212
213
214static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
215{
216 int i, actual;
217
218 actual = (len > 15) ? 15 : len;
219
220 outb_p(actual, iobase + offset);
221
222 for (i = 0; i < actual; i++)
223 outb_p(buf[i], iobase + offset + i + 1);
224
225 return actual;
226}
227
228
229static void bluecard_write_wakeup(bluecard_info_t *info)
230{
231 if (!info) {
232 BT_ERR("Unknown device");
233 return;
234 }
235
236 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
237 return;
238
239 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
240 set_bit(XMIT_WAKEUP, &(info->tx_state));
241 return;
242 }
243
244 do {
245 register unsigned int iobase = info->link.io.BasePort1;
246 register unsigned int offset;
247 register unsigned char command;
248 register unsigned long ready_bit;
249 register struct sk_buff *skb;
250 register int len;
251
252 clear_bit(XMIT_WAKEUP, &(info->tx_state));
253
254 if (!(info->link.state & DEV_PRESENT))
255 return;
256
257 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
258 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
259 break;
260 offset = 0x10;
261 command = REG_COMMAND_TX_BUF_TWO;
262 ready_bit = XMIT_BUF_TWO_READY;
263 } else {
264 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
265 break;
266 offset = 0x00;
267 command = REG_COMMAND_TX_BUF_ONE;
268 ready_bit = XMIT_BUF_ONE_READY;
269 }
270
271 if (!(skb = skb_dequeue(&(info->txq))))
272 break;
273
274 if (skb->pkt_type & 0x80) {
275 /* Disable RTS */
276 info->ctrl_reg |= REG_CONTROL_RTS;
277 outb(info->ctrl_reg, iobase + REG_CONTROL);
278 }
279
280 /* Activate LED */
281 bluecard_enable_activity_led(info);
282
283 /* Send frame */
284 len = bluecard_write(iobase, offset, skb->data, skb->len);
285
286 /* Tell the FPGA to send the data */
287 outb_p(command, iobase + REG_COMMAND);
288
289 /* Mark the buffer as dirty */
290 clear_bit(ready_bit, &(info->tx_state));
291
292 if (skb->pkt_type & 0x80) {
293 DECLARE_WAIT_QUEUE_HEAD(wq);
294 DEFINE_WAIT(wait);
295
296 unsigned char baud_reg;
297
298 switch (skb->pkt_type) {
299 case PKT_BAUD_RATE_460800:
300 baud_reg = REG_CONTROL_BAUD_RATE_460800;
301 break;
302 case PKT_BAUD_RATE_230400:
303 baud_reg = REG_CONTROL_BAUD_RATE_230400;
304 break;
305 case PKT_BAUD_RATE_115200:
306 baud_reg = REG_CONTROL_BAUD_RATE_115200;
307 break;
308 case PKT_BAUD_RATE_57600:
309 /* Fall through... */
310 default:
311 baud_reg = REG_CONTROL_BAUD_RATE_57600;
312 break;
313 }
314
315 /* Wait until the command reaches the baseband */
316 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
317 schedule_timeout(HZ/10);
318 finish_wait(&wq, &wait);
319
320 /* Set baud on baseband */
321 info->ctrl_reg &= ~0x03;
322 info->ctrl_reg |= baud_reg;
323 outb(info->ctrl_reg, iobase + REG_CONTROL);
324
325 /* Enable RTS */
326 info->ctrl_reg &= ~REG_CONTROL_RTS;
327 outb(info->ctrl_reg, iobase + REG_CONTROL);
328
329 /* Wait before the next HCI packet can be send */
330 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
331 schedule_timeout(HZ);
332 finish_wait(&wq, &wait);
333 }
334
335 if (len == skb->len) {
336 kfree_skb(skb);
337 } else {
338 skb_pull(skb, len);
339 skb_queue_head(&(info->txq), skb);
340 }
341
342 info->hdev->stat.byte_tx += len;
343
344 /* Change buffer */
345 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
346
347 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
348
349 clear_bit(XMIT_SENDING, &(info->tx_state));
350}
351
352
353static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
354{
355 int i, n, len;
356
357 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
358
359 len = inb(iobase + offset);
360 n = 0;
361 i = 1;
362
363 while (n < len) {
364
365 if (i == 16) {
366 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
367 i = 0;
368 }
369
370 buf[n] = inb(iobase + offset + i);
371
372 n++;
373 i++;
374
375 }
376
377 return len;
378}
379
380
381static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
382{
383 unsigned int iobase;
384 unsigned char buf[31];
385 int i, len;
386
387 if (!info) {
388 BT_ERR("Unknown device");
389 return;
390 }
391
392 iobase = info->link.io.BasePort1;
393
394 if (test_bit(XMIT_SENDING_READY, &(info->tx_state)))
395 bluecard_enable_activity_led(info);
396
397 len = bluecard_read(iobase, offset, buf, sizeof(buf));
398
399 for (i = 0; i < len; i++) {
400
401 /* Allocate packet */
402 if (info->rx_skb == NULL) {
403 info->rx_state = RECV_WAIT_PACKET_TYPE;
404 info->rx_count = 0;
405 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
406 BT_ERR("Can't allocate mem for new packet");
407 return;
408 }
409 }
410
411 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
412
413 info->rx_skb->dev = (void *) info->hdev;
414 info->rx_skb->pkt_type = buf[i];
415
416 switch (info->rx_skb->pkt_type) {
417
418 case 0x00:
419 /* init packet */
420 if (offset != 0x00) {
421 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
422 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
423 set_bit(XMIT_SENDING_READY, &(info->tx_state));
424 bluecard_write_wakeup(info);
425 }
426
427 kfree_skb(info->rx_skb);
428 info->rx_skb = NULL;
429 break;
430
431 case HCI_EVENT_PKT:
432 info->rx_state = RECV_WAIT_EVENT_HEADER;
433 info->rx_count = HCI_EVENT_HDR_SIZE;
434 break;
435
436 case HCI_ACLDATA_PKT:
437 info->rx_state = RECV_WAIT_ACL_HEADER;
438 info->rx_count = HCI_ACL_HDR_SIZE;
439 break;
440
441 case HCI_SCODATA_PKT:
442 info->rx_state = RECV_WAIT_SCO_HEADER;
443 info->rx_count = HCI_SCO_HDR_SIZE;
444 break;
445
446 default:
447 /* unknown packet */
448 BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
449 info->hdev->stat.err_rx++;
450
451 kfree_skb(info->rx_skb);
452 info->rx_skb = NULL;
453 break;
454
455 }
456
457 } else {
458
459 *skb_put(info->rx_skb, 1) = buf[i];
460 info->rx_count--;
461
462 if (info->rx_count == 0) {
463
464 int dlen;
465 struct hci_event_hdr *eh;
466 struct hci_acl_hdr *ah;
467 struct hci_sco_hdr *sh;
468
469 switch (info->rx_state) {
470
471 case RECV_WAIT_EVENT_HEADER:
472 eh = (struct hci_event_hdr *)(info->rx_skb->data);
473 info->rx_state = RECV_WAIT_DATA;
474 info->rx_count = eh->plen;
475 break;
476
477 case RECV_WAIT_ACL_HEADER:
478 ah = (struct hci_acl_hdr *)(info->rx_skb->data);
479 dlen = __le16_to_cpu(ah->dlen);
480 info->rx_state = RECV_WAIT_DATA;
481 info->rx_count = dlen;
482 break;
483
484 case RECV_WAIT_SCO_HEADER:
485 sh = (struct hci_sco_hdr *)(info->rx_skb->data);
486 info->rx_state = RECV_WAIT_DATA;
487 info->rx_count = sh->dlen;
488 break;
489
490 case RECV_WAIT_DATA:
491 hci_recv_frame(info->rx_skb);
492 info->rx_skb = NULL;
493 break;
494
495 }
496
497 }
498
499 }
500
501
502 }
503
504 info->hdev->stat.byte_rx += len;
505}
506
507
508static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
509{
510 bluecard_info_t *info = dev_inst;
511 unsigned int iobase;
512 unsigned char reg;
513
514 if (!info || !info->hdev) {
515 BT_ERR("Call of irq %d for unknown device", irq);
516 return IRQ_NONE;
517 }
518
519 if (!test_bit(CARD_READY, &(info->hw_state)))
520 return IRQ_HANDLED;
521
522 iobase = info->link.io.BasePort1;
523
524 spin_lock(&(info->lock));
525
526 /* Disable interrupt */
527 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
528 outb(info->ctrl_reg, iobase + REG_CONTROL);
529
530 reg = inb(iobase + REG_INTERRUPT);
531
532 if ((reg != 0x00) && (reg != 0xff)) {
533
534 if (reg & 0x04) {
535 bluecard_receive(info, 0x00);
536 outb(0x04, iobase + REG_INTERRUPT);
537 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
538 }
539
540 if (reg & 0x08) {
541 bluecard_receive(info, 0x10);
542 outb(0x08, iobase + REG_INTERRUPT);
543 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
544 }
545
546 if (reg & 0x01) {
547 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
548 outb(0x01, iobase + REG_INTERRUPT);
549 bluecard_write_wakeup(info);
550 }
551
552 if (reg & 0x02) {
553 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
554 outb(0x02, iobase + REG_INTERRUPT);
555 bluecard_write_wakeup(info);
556 }
557
558 }
559
560 /* Enable interrupt */
561 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
562 outb(info->ctrl_reg, iobase + REG_CONTROL);
563
564 spin_unlock(&(info->lock));
565
566 return IRQ_HANDLED;
567}
568
569
570
571/* ======================== Device specific HCI commands ======================== */
572
573
574static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
575{
576 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
577 struct sk_buff *skb;
578
579 /* Ericsson baud rate command */
580 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
581
582 if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
583 BT_ERR("Can't allocate mem for new packet");
584 return -1;
585 }
586
587 switch (baud) {
588 case 460800:
589 cmd[4] = 0x00;
590 skb->pkt_type = PKT_BAUD_RATE_460800;
591 break;
592 case 230400:
593 cmd[4] = 0x01;
594 skb->pkt_type = PKT_BAUD_RATE_230400;
595 break;
596 case 115200:
597 cmd[4] = 0x02;
598 skb->pkt_type = PKT_BAUD_RATE_115200;
599 break;
600 case 57600:
601 /* Fall through... */
602 default:
603 cmd[4] = 0x03;
604 skb->pkt_type = PKT_BAUD_RATE_57600;
605 break;
606 }
607
608 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
609
610 skb_queue_tail(&(info->txq), skb);
611
612 bluecard_write_wakeup(info);
613
614 return 0;
615}
616
617
618
619/* ======================== HCI interface ======================== */
620
621
622static int bluecard_hci_flush(struct hci_dev *hdev)
623{
624 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
625
626 /* Drop TX queue */
627 skb_queue_purge(&(info->txq));
628
629 return 0;
630}
631
632
633static int bluecard_hci_open(struct hci_dev *hdev)
634{
635 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
636 unsigned int iobase = info->link.io.BasePort1;
637
638 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
639 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
640
641 if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
642 return 0;
643
644 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
645 /* Enable LED */
646 outb(0x08 | 0x20, iobase + 0x30);
647 }
648
649 return 0;
650}
651
652
653static int bluecard_hci_close(struct hci_dev *hdev)
654{
655 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
656 unsigned int iobase = info->link.io.BasePort1;
657
658 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
659 return 0;
660
661 bluecard_hci_flush(hdev);
662
663 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
664 /* Disable LED */
665 outb(0x00, iobase + 0x30);
666 }
667
668 return 0;
669}
670
671
672static int bluecard_hci_send_frame(struct sk_buff *skb)
673{
674 bluecard_info_t *info;
675 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
676
677 if (!hdev) {
678 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
679 return -ENODEV;
680 }
681
682 info = (bluecard_info_t *)(hdev->driver_data);
683
684 switch (skb->pkt_type) {
685 case HCI_COMMAND_PKT:
686 hdev->stat.cmd_tx++;
687 break;
688 case HCI_ACLDATA_PKT:
689 hdev->stat.acl_tx++;
690 break;
691 case HCI_SCODATA_PKT:
692 hdev->stat.sco_tx++;
693 break;
694 };
695
696 /* Prepend skb with frame type */
697 memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
698 skb_queue_tail(&(info->txq), skb);
699
700 bluecard_write_wakeup(info);
701
702 return 0;
703}
704
705
706static void bluecard_hci_destruct(struct hci_dev *hdev)
707{
708}
709
710
711static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
712{
713 return -ENOIOCTLCMD;
714}
715
716
717
718/* ======================== Card services HCI interaction ======================== */
719
720
721static int bluecard_open(bluecard_info_t *info)
722{
723 unsigned int iobase = info->link.io.BasePort1;
724 struct hci_dev *hdev;
725 unsigned char id;
726
727 spin_lock_init(&(info->lock));
728
729 init_timer(&(info->timer));
730 info->timer.function = &bluecard_activity_led_timeout;
731 info->timer.data = (u_long)info;
732
733 skb_queue_head_init(&(info->txq));
734
735 info->rx_state = RECV_WAIT_PACKET_TYPE;
736 info->rx_count = 0;
737 info->rx_skb = NULL;
738
739 /* Initialize HCI device */
740 hdev = hci_alloc_dev();
741 if (!hdev) {
742 BT_ERR("Can't allocate HCI device");
743 return -ENOMEM;
744 }
745
746 info->hdev = hdev;
747
748 hdev->type = HCI_PCCARD;
749 hdev->driver_data = info;
750
751 hdev->open = bluecard_hci_open;
752 hdev->close = bluecard_hci_close;
753 hdev->flush = bluecard_hci_flush;
754 hdev->send = bluecard_hci_send_frame;
755 hdev->destruct = bluecard_hci_destruct;
756 hdev->ioctl = bluecard_hci_ioctl;
757
758 hdev->owner = THIS_MODULE;
759
760 id = inb(iobase + 0x30);
761
762 if ((id & 0x0f) == 0x02)
763 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
764
765 if (id & 0x10)
766 set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
767
768 if (id & 0x20)
769 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
770
771 /* Reset card */
772 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
773 outb(info->ctrl_reg, iobase + REG_CONTROL);
774
775 /* Turn FPGA off */
776 outb(0x80, iobase + 0x30);
777
778 /* Wait some time */
779 msleep(10);
780
781 /* Turn FPGA on */
782 outb(0x00, iobase + 0x30);
783
784 /* Activate card */
785 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
786 outb(info->ctrl_reg, iobase + REG_CONTROL);
787
788 /* Enable interrupt */
789 outb(0xff, iobase + REG_INTERRUPT);
790 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
791 outb(info->ctrl_reg, iobase + REG_CONTROL);
792
793 if ((id & 0x0f) == 0x03) {
794 /* Disable RTS */
795 info->ctrl_reg |= REG_CONTROL_RTS;
796 outb(info->ctrl_reg, iobase + REG_CONTROL);
797
798 /* Set baud rate */
799 info->ctrl_reg |= 0x03;
800 outb(info->ctrl_reg, iobase + REG_CONTROL);
801
802 /* Enable RTS */
803 info->ctrl_reg &= ~REG_CONTROL_RTS;
804 outb(info->ctrl_reg, iobase + REG_CONTROL);
805
806 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
807 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
808 set_bit(XMIT_SENDING_READY, &(info->tx_state));
809 }
810
811 /* Start the RX buffers */
812 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
813 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
814
815 /* Signal that the hardware is ready */
816 set_bit(CARD_READY, &(info->hw_state));
817
818 /* Drop TX queue */
819 skb_queue_purge(&(info->txq));
820
821 /* Control the point at which RTS is enabled */
822 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
823
824 /* Timeout before it is safe to send the first HCI packet */
825 msleep(1250);
826
827 /* Register HCI device */
828 if (hci_register_dev(hdev) < 0) {
829 BT_ERR("Can't register HCI device");
830 info->hdev = NULL;
831 hci_free_dev(hdev);
832 return -ENODEV;
833 }
834
835 return 0;
836}
837
838
839static int bluecard_close(bluecard_info_t *info)
840{
841 unsigned int iobase = info->link.io.BasePort1;
842 struct hci_dev *hdev = info->hdev;
843
844 if (!hdev)
845 return -ENODEV;
846
847 bluecard_hci_close(hdev);
848
849 clear_bit(CARD_READY, &(info->hw_state));
850
851 /* Reset card */
852 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
853 outb(info->ctrl_reg, iobase + REG_CONTROL);
854
855 /* Turn FPGA off */
856 outb(0x80, iobase + 0x30);
857
858 if (hci_unregister_dev(hdev) < 0)
859 BT_ERR("Can't unregister HCI device %s", hdev->name);
860
861 hci_free_dev(hdev);
862
863 return 0;
864}
865
866static dev_link_t *bluecard_attach(void)
867{
868 bluecard_info_t *info;
869 client_reg_t client_reg;
870 dev_link_t *link;
871 int ret;
872
873 /* Create new info device */
874 info = kmalloc(sizeof(*info), GFP_KERNEL);
875 if (!info)
876 return NULL;
877 memset(info, 0, sizeof(*info));
878
879 link = &info->link;
880 link->priv = info;
881
882 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
883 link->io.NumPorts1 = 8;
884 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
885 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
886
887 link->irq.Handler = bluecard_interrupt;
888 link->irq.Instance = info;
889
890 link->conf.Attributes = CONF_ENABLE_IRQ;
891 link->conf.Vcc = 50;
892 link->conf.IntType = INT_MEMORY_AND_IO;
893
894 /* Register with Card Services */
895 link->next = dev_list;
896 dev_list = link;
897 client_reg.dev_info = &dev_info;
898 client_reg.EventMask =
899 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
900 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
901 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
902 client_reg.event_handler = &bluecard_event;
903 client_reg.Version = 0x0210;
904 client_reg.event_callback_args.client_data = link;
905
906 ret = pcmcia_register_client(&link->handle, &client_reg);
907 if (ret != CS_SUCCESS) {
908 cs_error(link->handle, RegisterClient, ret);
909 bluecard_detach(link);
910 return NULL;
911 }
912
913 return link;
914}
915
916
917static void bluecard_detach(dev_link_t *link)
918{
919 bluecard_info_t *info = link->priv;
920 dev_link_t **linkp;
921 int ret;
922
923 /* Locate device structure */
924 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
925 if (*linkp == link)
926 break;
927
928 if (*linkp == NULL)
929 return;
930
931 if (link->state & DEV_CONFIG)
932 bluecard_release(link);
933
934 if (link->handle) {
935 ret = pcmcia_deregister_client(link->handle);
936 if (ret != CS_SUCCESS)
937 cs_error(link->handle, DeregisterClient, ret);
938 }
939
940 /* Unlink device structure, free bits */
941 *linkp = link->next;
942
943 kfree(info);
944}
945
946
947static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
948{
949 int i;
950
951 i = pcmcia_get_first_tuple(handle, tuple);
952 if (i != CS_SUCCESS)
953 return CS_NO_MORE_ITEMS;
954
955 i = pcmcia_get_tuple_data(handle, tuple);
956 if (i != CS_SUCCESS)
957 return i;
958
959 return pcmcia_parse_tuple(handle, tuple, parse);
960}
961
962static void bluecard_config(dev_link_t *link)
963{
964 client_handle_t handle = link->handle;
965 bluecard_info_t *info = link->priv;
966 tuple_t tuple;
967 u_short buf[256];
968 cisparse_t parse;
969 config_info_t config;
970 int i, n, last_ret, last_fn;
971
972 tuple.TupleData = (cisdata_t *)buf;
973 tuple.TupleOffset = 0;
974 tuple.TupleDataMax = 255;
975 tuple.Attributes = 0;
976
977 /* Get configuration register information */
978 tuple.DesiredTuple = CISTPL_CONFIG;
979 last_ret = first_tuple(handle, &tuple, &parse);
980 if (last_ret != CS_SUCCESS) {
981 last_fn = ParseTuple;
982 goto cs_failed;
983 }
984 link->conf.ConfigBase = parse.config.base;
985 link->conf.Present = parse.config.rmask[0];
986
987 /* Configure card */
988 link->state |= DEV_CONFIG;
989 i = pcmcia_get_configuration_info(handle, &config);
990 link->conf.Vcc = config.Vcc;
991
992 link->conf.ConfigIndex = 0x20;
993 link->io.NumPorts1 = 64;
994 link->io.IOAddrLines = 6;
995
996 for (n = 0; n < 0x400; n += 0x40) {
997 link->io.BasePort1 = n ^ 0x300;
998 i = pcmcia_request_io(link->handle, &link->io);
999 if (i == CS_SUCCESS)
1000 break;
1001 }
1002
1003 if (i != CS_SUCCESS) {
1004 cs_error(link->handle, RequestIO, i);
1005 goto failed;
1006 }
1007
1008 i = pcmcia_request_irq(link->handle, &link->irq);
1009 if (i != CS_SUCCESS) {
1010 cs_error(link->handle, RequestIRQ, i);
1011 link->irq.AssignedIRQ = 0;
1012 }
1013
1014 i = pcmcia_request_configuration(link->handle, &link->conf);
1015 if (i != CS_SUCCESS) {
1016 cs_error(link->handle, RequestConfiguration, i);
1017 goto failed;
1018 }
1019
1020 if (bluecard_open(info) != 0)
1021 goto failed;
1022
1023 strcpy(info->node.dev_name, info->hdev->name);
1024 link->dev = &info->node;
1025 link->state &= ~DEV_CONFIG_PENDING;
1026
1027 return;
1028
1029cs_failed:
1030 cs_error(link->handle, last_fn, last_ret);
1031
1032failed:
1033 bluecard_release(link);
1034}
1035
1036
1037static void bluecard_release(dev_link_t *link)
1038{
1039 bluecard_info_t *info = link->priv;
1040
1041 if (link->state & DEV_PRESENT)
1042 bluecard_close(info);
1043
1044 del_timer(&(info->timer));
1045
1046 link->dev = NULL;
1047
1048 pcmcia_release_configuration(link->handle);
1049 pcmcia_release_io(link->handle, &link->io);
1050 pcmcia_release_irq(link->handle, &link->irq);
1051
1052 link->state &= ~DEV_CONFIG;
1053}
1054
1055
1056static int bluecard_event(event_t event, int priority, event_callback_args_t *args)
1057{
1058 dev_link_t *link = args->client_data;
1059 bluecard_info_t *info = link->priv;
1060
1061 switch (event) {
1062 case CS_EVENT_CARD_REMOVAL:
1063 link->state &= ~DEV_PRESENT;
1064 if (link->state & DEV_CONFIG) {
1065 bluecard_close(info);
1066 bluecard_release(link);
1067 }
1068 break;
1069 case CS_EVENT_CARD_INSERTION:
1070 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1071 bluecard_config(link);
1072 break;
1073 case CS_EVENT_PM_SUSPEND:
1074 link->state |= DEV_SUSPEND;
1075 /* Fall through... */
1076 case CS_EVENT_RESET_PHYSICAL:
1077 if (link->state & DEV_CONFIG)
1078 pcmcia_release_configuration(link->handle);
1079 break;
1080 case CS_EVENT_PM_RESUME:
1081 link->state &= ~DEV_SUSPEND;
1082 /* Fall through... */
1083 case CS_EVENT_CARD_RESET:
1084 if (DEV_OK(link))
1085 pcmcia_request_configuration(link->handle, &link->conf);
1086 break;
1087 }
1088
1089 return 0;
1090}
1091
1092static struct pcmcia_driver bluecard_driver = {
1093 .owner = THIS_MODULE,
1094 .drv = {
1095 .name = "bluecard_cs",
1096 },
1097 .attach = bluecard_attach,
1098 .detach = bluecard_detach,
1099};
1100
1101static int __init init_bluecard_cs(void)
1102{
1103 return pcmcia_register_driver(&bluecard_driver);
1104}
1105
1106
1107static void __exit exit_bluecard_cs(void)
1108{
1109 pcmcia_unregister_driver(&bluecard_driver);
1110 BUG_ON(dev_list != NULL);
1111}
1112
1113module_init(init_bluecard_cs);
1114module_exit(exit_bluecard_cs);
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
new file mode 100644
index 000000000000..2771c861f185
--- /dev/null
+++ b/drivers/bluetooth/bpa10x.c
@@ -0,0 +1,657 @@
1/*
2 *
3 * Digianswer Bluetooth USB driver
4 *
5 * Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
6 *
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
24#include <linux/config.h>
25#include <linux/module.h>
26
27#include <linux/kernel.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/types.h>
31#include <linux/errno.h>
32
33#include <linux/usb.h>
34
35#include <net/bluetooth/bluetooth.h>
36#include <net/bluetooth/hci_core.h>
37
38#ifndef CONFIG_BT_HCIBPA10X_DEBUG
39#undef BT_DBG
40#define BT_DBG(D...)
41#endif
42
43#define VERSION "0.8"
44
45static int ignore = 0;
46
47static struct usb_device_id bpa10x_table[] = {
48 /* Tektronix BPA 100/105 (Digianswer) */
49 { USB_DEVICE(0x08fd, 0x0002) },
50
51 { } /* Terminating entry */
52};
53
54MODULE_DEVICE_TABLE(usb, bpa10x_table);
55
56#define BPA10X_CMD_EP 0x00
57#define BPA10X_EVT_EP 0x81
58#define BPA10X_TX_EP 0x02
59#define BPA10X_RX_EP 0x82
60
61#define BPA10X_CMD_BUF_SIZE 252
62#define BPA10X_EVT_BUF_SIZE 16
63#define BPA10X_TX_BUF_SIZE 384
64#define BPA10X_RX_BUF_SIZE 384
65
66struct bpa10x_data {
67 struct hci_dev *hdev;
68 struct usb_device *udev;
69
70 rwlock_t lock;
71
72 struct sk_buff_head cmd_queue;
73 struct urb *cmd_urb;
74 struct urb *evt_urb;
75 struct sk_buff *evt_skb;
76 unsigned int evt_len;
77
78 struct sk_buff_head tx_queue;
79 struct urb *tx_urb;
80 struct urb *rx_urb;
81};
82
83#define HCI_VENDOR_HDR_SIZE 5
84
85struct hci_vendor_hdr {
86 __u8 type;
87 __u16 snum;
88 __u16 dlen;
89} __attribute__ ((packed));
90
91static void bpa10x_recv_bulk(struct bpa10x_data *data, unsigned char *buf, int count)
92{
93 struct hci_acl_hdr *ah;
94 struct hci_sco_hdr *sh;
95 struct hci_vendor_hdr *vh;
96 struct sk_buff *skb;
97 int len;
98
99 while (count) {
100 switch (*buf++) {
101 case HCI_ACLDATA_PKT:
102 ah = (struct hci_acl_hdr *) buf;
103 len = HCI_ACL_HDR_SIZE + __le16_to_cpu(ah->dlen);
104 skb = bt_skb_alloc(len, GFP_ATOMIC);
105 if (skb) {
106 memcpy(skb_put(skb, len), buf, len);
107 skb->dev = (void *) data->hdev;
108 skb->pkt_type = HCI_ACLDATA_PKT;
109 hci_recv_frame(skb);
110 }
111 break;
112
113 case HCI_SCODATA_PKT:
114 sh = (struct hci_sco_hdr *) buf;
115 len = HCI_SCO_HDR_SIZE + sh->dlen;
116 skb = bt_skb_alloc(len, GFP_ATOMIC);
117 if (skb) {
118 memcpy(skb_put(skb, len), buf, len);
119 skb->dev = (void *) data->hdev;
120 skb->pkt_type = HCI_SCODATA_PKT;
121 hci_recv_frame(skb);
122 }
123 break;
124
125 case HCI_VENDOR_PKT:
126 vh = (struct hci_vendor_hdr *) buf;
127 len = HCI_VENDOR_HDR_SIZE + __le16_to_cpu(vh->dlen);
128 skb = bt_skb_alloc(len, GFP_ATOMIC);
129 if (skb) {
130 memcpy(skb_put(skb, len), buf, len);
131 skb->dev = (void *) data->hdev;
132 skb->pkt_type = HCI_VENDOR_PKT;
133 hci_recv_frame(skb);
134 }
135 break;
136
137 default:
138 len = count - 1;
139 break;
140 }
141
142 buf += len;
143 count -= (len + 1);
144 }
145}
146
147static int bpa10x_recv_event(struct bpa10x_data *data, unsigned char *buf, int size)
148{
149 BT_DBG("data %p buf %p size %d", data, buf, size);
150
151 if (data->evt_skb) {
152 struct sk_buff *skb = data->evt_skb;
153
154 memcpy(skb_put(skb, size), buf, size);
155
156 if (skb->len == data->evt_len) {
157 data->evt_skb = NULL;
158 data->evt_len = 0;
159 hci_recv_frame(skb);
160 }
161 } else {
162 struct sk_buff *skb;
163 struct hci_event_hdr *hdr;
164 unsigned char pkt_type;
165 int pkt_len = 0;
166
167 if (size < HCI_EVENT_HDR_SIZE + 1) {
168 BT_ERR("%s event packet block with size %d is too short",
169 data->hdev->name, size);
170 return -EILSEQ;
171 }
172
173 pkt_type = *buf++;
174 size--;
175
176 if (pkt_type != HCI_EVENT_PKT) {
177 BT_ERR("%s unexpected event packet start byte 0x%02x",
178 data->hdev->name, pkt_type);
179 return -EPROTO;
180 }
181
182 hdr = (struct hci_event_hdr *) buf;
183 pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
184
185 skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
186 if (!skb) {
187 BT_ERR("%s no memory for new event packet",
188 data->hdev->name);
189 return -ENOMEM;
190 }
191
192 skb->dev = (void *) data->hdev;
193 skb->pkt_type = pkt_type;
194
195 memcpy(skb_put(skb, size), buf, size);
196
197 if (pkt_len == size) {
198 hci_recv_frame(skb);
199 } else {
200 data->evt_skb = skb;
201 data->evt_len = pkt_len;
202 }
203 }
204
205 return 0;
206}
207
208static void bpa10x_wakeup(struct bpa10x_data *data)
209{
210 struct urb *urb;
211 struct sk_buff *skb;
212 int err;
213
214 BT_DBG("data %p", data);
215
216 urb = data->cmd_urb;
217 if (urb->status == -EINPROGRESS)
218 skb = NULL;
219 else
220 skb = skb_dequeue(&data->cmd_queue);
221
222 if (skb) {
223 struct usb_ctrlrequest *cr;
224
225 if (skb->len > BPA10X_CMD_BUF_SIZE) {
226 BT_ERR("%s command packet with size %d is too big",
227 data->hdev->name, skb->len);
228 kfree_skb(skb);
229 return;
230 }
231
232 cr = (struct usb_ctrlrequest *) urb->setup_packet;
233 cr->wLength = __cpu_to_le16(skb->len);
234
235 memcpy(urb->transfer_buffer, skb->data, skb->len);
236 urb->transfer_buffer_length = skb->len;
237
238 err = usb_submit_urb(urb, GFP_ATOMIC);
239 if (err < 0 && err != -ENODEV) {
240 BT_ERR("%s submit failed for command urb %p with error %d",
241 data->hdev->name, urb, err);
242 skb_queue_head(&data->cmd_queue, skb);
243 } else
244 kfree_skb(skb);
245 }
246
247 urb = data->tx_urb;
248 if (urb->status == -EINPROGRESS)
249 skb = NULL;
250 else
251 skb = skb_dequeue(&data->tx_queue);
252
253 if (skb) {
254 memcpy(urb->transfer_buffer, skb->data, skb->len);
255 urb->transfer_buffer_length = skb->len;
256
257 err = usb_submit_urb(urb, GFP_ATOMIC);
258 if (err < 0 && err != -ENODEV) {
259 BT_ERR("%s submit failed for command urb %p with error %d",
260 data->hdev->name, urb, err);
261 skb_queue_head(&data->tx_queue, skb);
262 } else
263 kfree_skb(skb);
264 }
265}
266
267static void bpa10x_complete(struct urb *urb, struct pt_regs *regs)
268{
269 struct bpa10x_data *data = urb->context;
270 unsigned char *buf = urb->transfer_buffer;
271 int err, count = urb->actual_length;
272
273 BT_DBG("data %p urb %p buf %p count %d", data, urb, buf, count);
274
275 read_lock(&data->lock);
276
277 if (!test_bit(HCI_RUNNING, &data->hdev->flags))
278 goto unlock;
279
280 if (urb->status < 0 || !count)
281 goto resubmit;
282
283 if (usb_pipein(urb->pipe)) {
284 data->hdev->stat.byte_rx += count;
285
286 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)
287 bpa10x_recv_event(data, buf, count);
288
289 if (usb_pipetype(urb->pipe) == PIPE_BULK)
290 bpa10x_recv_bulk(data, buf, count);
291 } else {
292 data->hdev->stat.byte_tx += count;
293
294 bpa10x_wakeup(data);
295 }
296
297resubmit:
298 if (usb_pipein(urb->pipe)) {
299 err = usb_submit_urb(urb, GFP_ATOMIC);
300 if (err < 0 && err != -ENODEV) {
301 BT_ERR("%s urb %p type %d resubmit status %d",
302 data->hdev->name, urb, usb_pipetype(urb->pipe), err);
303 }
304 }
305
306unlock:
307 read_unlock(&data->lock);
308}
309
310static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe, size_t size, int flags, void *data)
311{
312 struct urb *urb;
313 struct usb_ctrlrequest *cr;
314 unsigned char *buf;
315
316 BT_DBG("udev %p data %p", udev, data);
317
318 urb = usb_alloc_urb(0, flags);
319 if (!urb)
320 return NULL;
321
322 buf = kmalloc(size, flags);
323 if (!buf) {
324 usb_free_urb(urb);
325 return NULL;
326 }
327
328 switch (usb_pipetype(pipe)) {
329 case PIPE_CONTROL:
330 cr = kmalloc(sizeof(*cr), flags);
331 if (!cr) {
332 kfree(buf);
333 usb_free_urb(urb);
334 return NULL;
335 }
336
337 cr->bRequestType = USB_TYPE_VENDOR;
338 cr->bRequest = 0;
339 cr->wIndex = 0;
340 cr->wValue = 0;
341 cr->wLength = __cpu_to_le16(0);
342
343 usb_fill_control_urb(urb, udev, pipe, (void *) cr, buf, 0, bpa10x_complete, data);
344 break;
345
346 case PIPE_INTERRUPT:
347 usb_fill_int_urb(urb, udev, pipe, buf, size, bpa10x_complete, data, 1);
348 break;
349
350 case PIPE_BULK:
351 usb_fill_bulk_urb(urb, udev, pipe, buf, size, bpa10x_complete, data);
352 break;
353
354 default:
355 kfree(buf);
356 usb_free_urb(urb);
357 return NULL;
358 }
359
360 return urb;
361}
362
363static inline void bpa10x_free_urb(struct urb *urb)
364{
365 BT_DBG("urb %p", urb);
366
367 if (!urb)
368 return;
369
370 if (urb->setup_packet)
371 kfree(urb->setup_packet);
372
373 if (urb->transfer_buffer)
374 kfree(urb->transfer_buffer);
375
376 usb_free_urb(urb);
377}
378
379static int bpa10x_open(struct hci_dev *hdev)
380{
381 struct bpa10x_data *data = hdev->driver_data;
382 struct usb_device *udev = data->udev;
383 unsigned long flags;
384 int err;
385
386 BT_DBG("hdev %p data %p", hdev, data);
387
388 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
389 return 0;
390
391 data->cmd_urb = bpa10x_alloc_urb(udev, usb_sndctrlpipe(udev, BPA10X_CMD_EP),
392 BPA10X_CMD_BUF_SIZE, GFP_KERNEL, data);
393 if (!data->cmd_urb) {
394 err = -ENOMEM;
395 goto done;
396 }
397
398 data->evt_urb = bpa10x_alloc_urb(udev, usb_rcvintpipe(udev, BPA10X_EVT_EP),
399 BPA10X_EVT_BUF_SIZE, GFP_KERNEL, data);
400 if (!data->evt_urb) {
401 bpa10x_free_urb(data->cmd_urb);
402 err = -ENOMEM;
403 goto done;
404 }
405
406 data->rx_urb = bpa10x_alloc_urb(udev, usb_rcvbulkpipe(udev, BPA10X_RX_EP),
407 BPA10X_RX_BUF_SIZE, GFP_KERNEL, data);
408 if (!data->rx_urb) {
409 bpa10x_free_urb(data->evt_urb);
410 bpa10x_free_urb(data->cmd_urb);
411 err = -ENOMEM;
412 goto done;
413 }
414
415 data->tx_urb = bpa10x_alloc_urb(udev, usb_sndbulkpipe(udev, BPA10X_TX_EP),
416 BPA10X_TX_BUF_SIZE, GFP_KERNEL, data);
417 if (!data->rx_urb) {
418 bpa10x_free_urb(data->rx_urb);
419 bpa10x_free_urb(data->evt_urb);
420 bpa10x_free_urb(data->cmd_urb);
421 err = -ENOMEM;
422 goto done;
423 }
424
425 write_lock_irqsave(&data->lock, flags);
426
427 err = usb_submit_urb(data->evt_urb, GFP_ATOMIC);
428 if (err < 0) {
429 BT_ERR("%s submit failed for event urb %p with error %d",
430 data->hdev->name, data->evt_urb, err);
431 } else {
432 err = usb_submit_urb(data->rx_urb, GFP_ATOMIC);
433 if (err < 0) {
434 BT_ERR("%s submit failed for rx urb %p with error %d",
435 data->hdev->name, data->evt_urb, err);
436 usb_kill_urb(data->evt_urb);
437 }
438 }
439
440 write_unlock_irqrestore(&data->lock, flags);
441
442done:
443 if (err < 0)
444 clear_bit(HCI_RUNNING, &hdev->flags);
445
446 return err;
447}
448
449static int bpa10x_close(struct hci_dev *hdev)
450{
451 struct bpa10x_data *data = hdev->driver_data;
452 unsigned long flags;
453
454 BT_DBG("hdev %p data %p", hdev, data);
455
456 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
457 return 0;
458
459 write_lock_irqsave(&data->lock, flags);
460
461 skb_queue_purge(&data->cmd_queue);
462 usb_kill_urb(data->cmd_urb);
463 usb_kill_urb(data->evt_urb);
464 usb_kill_urb(data->rx_urb);
465 usb_kill_urb(data->tx_urb);
466
467 write_unlock_irqrestore(&data->lock, flags);
468
469 bpa10x_free_urb(data->cmd_urb);
470 bpa10x_free_urb(data->evt_urb);
471 bpa10x_free_urb(data->rx_urb);
472 bpa10x_free_urb(data->tx_urb);
473
474 return 0;
475}
476
477static int bpa10x_flush(struct hci_dev *hdev)
478{
479 struct bpa10x_data *data = hdev->driver_data;
480
481 BT_DBG("hdev %p data %p", hdev, data);
482
483 skb_queue_purge(&data->cmd_queue);
484
485 return 0;
486}
487
488static int bpa10x_send_frame(struct sk_buff *skb)
489{
490 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
491 struct bpa10x_data *data;
492
493 BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, skb->pkt_type, skb->len);
494
495 if (!hdev) {
496 BT_ERR("Frame for unknown HCI device");
497 return -ENODEV;
498 }
499
500 if (!test_bit(HCI_RUNNING, &hdev->flags))
501 return -EBUSY;
502
503 data = hdev->driver_data;
504
505 /* Prepend skb with frame type */
506 memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
507
508 switch (skb->pkt_type) {
509 case HCI_COMMAND_PKT:
510 hdev->stat.cmd_tx++;
511 skb_queue_tail(&data->cmd_queue, skb);
512 break;
513
514 case HCI_ACLDATA_PKT:
515 hdev->stat.acl_tx++;
516 skb_queue_tail(&data->tx_queue, skb);
517 break;
518
519 case HCI_SCODATA_PKT:
520 hdev->stat.sco_tx++;
521 skb_queue_tail(&data->tx_queue, skb);
522 break;
523 };
524
525 read_lock(&data->lock);
526
527 bpa10x_wakeup(data);
528
529 read_unlock(&data->lock);
530
531 return 0;
532}
533
534static void bpa10x_destruct(struct hci_dev *hdev)
535{
536 struct bpa10x_data *data = hdev->driver_data;
537
538 BT_DBG("hdev %p data %p", hdev, data);
539
540 kfree(data);
541}
542
543static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id)
544{
545 struct usb_device *udev = interface_to_usbdev(intf);
546 struct hci_dev *hdev;
547 struct bpa10x_data *data;
548 int err;
549
550 BT_DBG("intf %p id %p", intf, id);
551
552 if (ignore)
553 return -ENODEV;
554
555 data = kmalloc(sizeof(*data), GFP_KERNEL);
556 if (!data) {
557 BT_ERR("Can't allocate data structure");
558 return -ENOMEM;
559 }
560
561 memset(data, 0, sizeof(*data));
562
563 data->udev = udev;
564
565 rwlock_init(&data->lock);
566
567 skb_queue_head_init(&data->cmd_queue);
568 skb_queue_head_init(&data->tx_queue);
569
570 hdev = hci_alloc_dev();
571 if (!hdev) {
572 BT_ERR("Can't allocate HCI device");
573 kfree(data);
574 return -ENOMEM;
575 }
576
577 data->hdev = hdev;
578
579 hdev->type = HCI_USB;
580 hdev->driver_data = data;
581 SET_HCIDEV_DEV(hdev, &intf->dev);
582
583 hdev->open = bpa10x_open;
584 hdev->close = bpa10x_close;
585 hdev->flush = bpa10x_flush;
586 hdev->send = bpa10x_send_frame;
587 hdev->destruct = bpa10x_destruct;
588
589 hdev->owner = THIS_MODULE;
590
591 err = hci_register_dev(hdev);
592 if (err < 0) {
593 BT_ERR("Can't register HCI device");
594 kfree(data);
595 hci_free_dev(hdev);
596 return err;
597 }
598
599 usb_set_intfdata(intf, data);
600
601 return 0;
602}
603
604static void bpa10x_disconnect(struct usb_interface *intf)
605{
606 struct bpa10x_data *data = usb_get_intfdata(intf);
607 struct hci_dev *hdev = data->hdev;
608
609 BT_DBG("intf %p", intf);
610
611 if (!hdev)
612 return;
613
614 usb_set_intfdata(intf, NULL);
615
616 if (hci_unregister_dev(hdev) < 0)
617 BT_ERR("Can't unregister HCI device %s", hdev->name);
618
619 hci_free_dev(hdev);
620}
621
622static struct usb_driver bpa10x_driver = {
623 .owner = THIS_MODULE,
624 .name = "bpa10x",
625 .probe = bpa10x_probe,
626 .disconnect = bpa10x_disconnect,
627 .id_table = bpa10x_table,
628};
629
630static int __init bpa10x_init(void)
631{
632 int err;
633
634 BT_INFO("Digianswer Bluetooth USB driver ver %s", VERSION);
635
636 err = usb_register(&bpa10x_driver);
637 if (err < 0)
638 BT_ERR("Failed to register USB driver");
639
640 return err;
641}
642
643static void __exit bpa10x_exit(void)
644{
645 usb_deregister(&bpa10x_driver);
646}
647
648module_init(bpa10x_init);
649module_exit(bpa10x_exit);
650
651module_param(ignore, bool, 0644);
652MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
653
654MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
655MODULE_DESCRIPTION("Digianswer Bluetooth USB driver ver " VERSION);
656MODULE_VERSION(VERSION);
657MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
new file mode 100644
index 000000000000..f71e5c76963d
--- /dev/null
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -0,0 +1,960 @@
1/*
2 *
3 * Driver for the 3Com Bluetooth PCMCIA card
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
6 * Jose Orlando Pereira <jop@di.uminho.pt>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation;
12 *
13 * Software distributed under the License is distributed on an "AS
14 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
15 * implied. See the License for the specific language governing
16 * rights and limitations under the License.
17 *
18 * The initial developer of the original code is David A. Hinds
19 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
20 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
21 *
22 */
23
24#include <linux/config.h>
25#include <linux/module.h>
26
27#include <linux/kernel.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/types.h>
31#include <linux/sched.h>
32#include <linux/delay.h>
33#include <linux/errno.h>
34#include <linux/ptrace.h>
35#include <linux/ioport.h>
36#include <linux/spinlock.h>
37#include <linux/moduleparam.h>
38
39#include <linux/skbuff.h>
40#include <linux/string.h>
41#include <linux/serial.h>
42#include <linux/serial_reg.h>
43#include <linux/bitops.h>
44#include <asm/system.h>
45#include <asm/io.h>
46
47#include <linux/device.h>
48#include <linux/firmware.h>
49
50#include <pcmcia/version.h>
51#include <pcmcia/cs_types.h>
52#include <pcmcia/cs.h>
53#include <pcmcia/cistpl.h>
54#include <pcmcia/ciscode.h>
55#include <pcmcia/ds.h>
56#include <pcmcia/cisreg.h>
57
58#include <net/bluetooth/bluetooth.h>
59#include <net/bluetooth/hci_core.h>
60
61
62
63/* ======================== Module parameters ======================== */
64
65
66MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Jose Orlando Pereira <jop@di.uminho.pt>");
67MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card");
68MODULE_LICENSE("GPL");
69
70
71
72/* ======================== Local structures ======================== */
73
74
75typedef struct bt3c_info_t {
76 dev_link_t link;
77 dev_node_t node;
78
79 struct hci_dev *hdev;
80
81 spinlock_t lock; /* For serializing operations */
82
83 struct sk_buff_head txq;
84 unsigned long tx_state;
85
86 unsigned long rx_state;
87 unsigned long rx_count;
88 struct sk_buff *rx_skb;
89} bt3c_info_t;
90
91
92static void bt3c_config(dev_link_t *link);
93static void bt3c_release(dev_link_t *link);
94static int bt3c_event(event_t event, int priority, event_callback_args_t *args);
95
96static dev_info_t dev_info = "bt3c_cs";
97
98static dev_link_t *bt3c_attach(void);
99static void bt3c_detach(dev_link_t *);
100
101static dev_link_t *dev_list = NULL;
102
103
104/* Transmit states */
105#define XMIT_SENDING 1
106#define XMIT_WAKEUP 2
107#define XMIT_WAITING 8
108
109/* Receiver states */
110#define RECV_WAIT_PACKET_TYPE 0
111#define RECV_WAIT_EVENT_HEADER 1
112#define RECV_WAIT_ACL_HEADER 2
113#define RECV_WAIT_SCO_HEADER 3
114#define RECV_WAIT_DATA 4
115
116
117
118/* ======================== Special I/O functions ======================== */
119
120
121#define DATA_L 0
122#define DATA_H 1
123#define ADDR_L 2
124#define ADDR_H 3
125#define CONTROL 4
126
127
128static inline void bt3c_address(unsigned int iobase, unsigned short addr)
129{
130 outb(addr & 0xff, iobase + ADDR_L);
131 outb((addr >> 8) & 0xff, iobase + ADDR_H);
132}
133
134
135static inline void bt3c_put(unsigned int iobase, unsigned short value)
136{
137 outb(value & 0xff, iobase + DATA_L);
138 outb((value >> 8) & 0xff, iobase + DATA_H);
139}
140
141
142static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value)
143{
144 bt3c_address(iobase, addr);
145 bt3c_put(iobase, value);
146}
147
148
149static inline unsigned short bt3c_get(unsigned int iobase)
150{
151 unsigned short value = inb(iobase + DATA_L);
152
153 value |= inb(iobase + DATA_H) << 8;
154
155 return value;
156}
157
158
159static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr)
160{
161 bt3c_address(iobase, addr);
162
163 return bt3c_get(iobase);
164}
165
166
167
168/* ======================== Interrupt handling ======================== */
169
170
171static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
172{
173 int actual = 0;
174
175 bt3c_address(iobase, 0x7080);
176
177 /* Fill FIFO with current frame */
178 while (actual < len) {
179 /* Transmit next byte */
180 bt3c_put(iobase, buf[actual]);
181 actual++;
182 }
183
184 bt3c_io_write(iobase, 0x7005, actual);
185
186 return actual;
187}
188
189
190static void bt3c_write_wakeup(bt3c_info_t *info)
191{
192 if (!info) {
193 BT_ERR("Unknown device");
194 return;
195 }
196
197 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state)))
198 return;
199
200 do {
201 register unsigned int iobase = info->link.io.BasePort1;
202 register struct sk_buff *skb;
203 register int len;
204
205 if (!(info->link.state & DEV_PRESENT))
206 break;
207
208
209 if (!(skb = skb_dequeue(&(info->txq)))) {
210 clear_bit(XMIT_SENDING, &(info->tx_state));
211 break;
212 }
213
214 /* Send frame */
215 len = bt3c_write(iobase, 256, skb->data, skb->len);
216
217 if (len != skb->len) {
218 BT_ERR("Very strange");
219 }
220
221 kfree_skb(skb);
222
223 info->hdev->stat.byte_tx += len;
224
225 } while (0);
226}
227
228
229static void bt3c_receive(bt3c_info_t *info)
230{
231 unsigned int iobase;
232 int size = 0, avail;
233
234 if (!info) {
235 BT_ERR("Unknown device");
236 return;
237 }
238
239 iobase = info->link.io.BasePort1;
240
241 avail = bt3c_read(iobase, 0x7006);
242 //printk("bt3c_cs: receiving %d bytes\n", avail);
243
244 bt3c_address(iobase, 0x7480);
245 while (size < avail) {
246 size++;
247 info->hdev->stat.byte_rx++;
248
249 /* Allocate packet */
250 if (info->rx_skb == NULL) {
251 info->rx_state = RECV_WAIT_PACKET_TYPE;
252 info->rx_count = 0;
253 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
254 BT_ERR("Can't allocate mem for new packet");
255 return;
256 }
257 }
258
259
260 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
261
262 info->rx_skb->dev = (void *) info->hdev;
263 info->rx_skb->pkt_type = inb(iobase + DATA_L);
264 inb(iobase + DATA_H);
265 //printk("bt3c: PACKET_TYPE=%02x\n", info->rx_skb->pkt_type);
266
267 switch (info->rx_skb->pkt_type) {
268
269 case HCI_EVENT_PKT:
270 info->rx_state = RECV_WAIT_EVENT_HEADER;
271 info->rx_count = HCI_EVENT_HDR_SIZE;
272 break;
273
274 case HCI_ACLDATA_PKT:
275 info->rx_state = RECV_WAIT_ACL_HEADER;
276 info->rx_count = HCI_ACL_HDR_SIZE;
277 break;
278
279 case HCI_SCODATA_PKT:
280 info->rx_state = RECV_WAIT_SCO_HEADER;
281 info->rx_count = HCI_SCO_HDR_SIZE;
282 break;
283
284 default:
285 /* Unknown packet */
286 BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
287 info->hdev->stat.err_rx++;
288 clear_bit(HCI_RUNNING, &(info->hdev->flags));
289
290 kfree_skb(info->rx_skb);
291 info->rx_skb = NULL;
292 break;
293
294 }
295
296 } else {
297
298 __u8 x = inb(iobase + DATA_L);
299
300 *skb_put(info->rx_skb, 1) = x;
301 inb(iobase + DATA_H);
302 info->rx_count--;
303
304 if (info->rx_count == 0) {
305
306 int dlen;
307 struct hci_event_hdr *eh;
308 struct hci_acl_hdr *ah;
309 struct hci_sco_hdr *sh;
310
311 switch (info->rx_state) {
312
313 case RECV_WAIT_EVENT_HEADER:
314 eh = (struct hci_event_hdr *)(info->rx_skb->data);
315 info->rx_state = RECV_WAIT_DATA;
316 info->rx_count = eh->plen;
317 break;
318
319 case RECV_WAIT_ACL_HEADER:
320 ah = (struct hci_acl_hdr *)(info->rx_skb->data);
321 dlen = __le16_to_cpu(ah->dlen);
322 info->rx_state = RECV_WAIT_DATA;
323 info->rx_count = dlen;
324 break;
325
326 case RECV_WAIT_SCO_HEADER:
327 sh = (struct hci_sco_hdr *)(info->rx_skb->data);
328 info->rx_state = RECV_WAIT_DATA;
329 info->rx_count = sh->dlen;
330 break;
331
332 case RECV_WAIT_DATA:
333 hci_recv_frame(info->rx_skb);
334 info->rx_skb = NULL;
335 break;
336
337 }
338
339 }
340
341 }
342
343 }
344
345 bt3c_io_write(iobase, 0x7006, 0x0000);
346}
347
348
349static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
350{
351 bt3c_info_t *info = dev_inst;
352 unsigned int iobase;
353 int iir;
354
355 if (!info || !info->hdev) {
356 BT_ERR("Call of irq %d for unknown device", irq);
357 return IRQ_NONE;
358 }
359
360 iobase = info->link.io.BasePort1;
361
362 spin_lock(&(info->lock));
363
364 iir = inb(iobase + CONTROL);
365 if (iir & 0x80) {
366 int stat = bt3c_read(iobase, 0x7001);
367
368 if ((stat & 0xff) == 0x7f) {
369 BT_ERR("Very strange (stat=0x%04x)", stat);
370 } else if ((stat & 0xff) != 0xff) {
371 if (stat & 0x0020) {
372 int stat = bt3c_read(iobase, 0x7002) & 0x10;
373 BT_INFO("%s: Antenna %s", info->hdev->name,
374 stat ? "out" : "in");
375 }
376 if (stat & 0x0001)
377 bt3c_receive(info);
378 if (stat & 0x0002) {
379 //BT_ERR("Ack (stat=0x%04x)", stat);
380 clear_bit(XMIT_SENDING, &(info->tx_state));
381 bt3c_write_wakeup(info);
382 }
383
384 bt3c_io_write(iobase, 0x7001, 0x0000);
385
386 outb(iir, iobase + CONTROL);
387 }
388 }
389
390 spin_unlock(&(info->lock));
391
392 return IRQ_HANDLED;
393}
394
395
396
397/* ======================== HCI interface ======================== */
398
399
400static int bt3c_hci_flush(struct hci_dev *hdev)
401{
402 bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data);
403
404 /* Drop TX queue */
405 skb_queue_purge(&(info->txq));
406
407 return 0;
408}
409
410
411static int bt3c_hci_open(struct hci_dev *hdev)
412{
413 set_bit(HCI_RUNNING, &(hdev->flags));
414
415 return 0;
416}
417
418
419static int bt3c_hci_close(struct hci_dev *hdev)
420{
421 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
422 return 0;
423
424 bt3c_hci_flush(hdev);
425
426 return 0;
427}
428
429
430static int bt3c_hci_send_frame(struct sk_buff *skb)
431{
432 bt3c_info_t *info;
433 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
434 unsigned long flags;
435
436 if (!hdev) {
437 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
438 return -ENODEV;
439 }
440
441 info = (bt3c_info_t *) (hdev->driver_data);
442
443 switch (skb->pkt_type) {
444 case HCI_COMMAND_PKT:
445 hdev->stat.cmd_tx++;
446 break;
447 case HCI_ACLDATA_PKT:
448 hdev->stat.acl_tx++;
449 break;
450 case HCI_SCODATA_PKT:
451 hdev->stat.sco_tx++;
452 break;
453 };
454
455 /* Prepend skb with frame type */
456 memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
457 skb_queue_tail(&(info->txq), skb);
458
459 spin_lock_irqsave(&(info->lock), flags);
460
461 bt3c_write_wakeup(info);
462
463 spin_unlock_irqrestore(&(info->lock), flags);
464
465 return 0;
466}
467
468
469static void bt3c_hci_destruct(struct hci_dev *hdev)
470{
471}
472
473
474static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
475{
476 return -ENOIOCTLCMD;
477}
478
479
480
481/* ======================== Card services HCI interaction ======================== */
482
483
484static struct device *bt3c_device(void)
485{
486 static struct device dev = {
487 .bus_id = "pcmcia",
488 };
489 kobject_set_name(&dev.kobj, "bt3c");
490 kobject_init(&dev.kobj);
491
492 return &dev;
493}
494
495
496static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count)
497{
498 char *ptr = (char *) firmware;
499 char b[9];
500 unsigned int iobase, size, addr, fcs, tmp;
501 int i, err = 0;
502
503 iobase = info->link.io.BasePort1;
504
505 /* Reset */
506 bt3c_io_write(iobase, 0x8040, 0x0404);
507 bt3c_io_write(iobase, 0x8040, 0x0400);
508
509 udelay(1);
510
511 bt3c_io_write(iobase, 0x8040, 0x0404);
512
513 udelay(17);
514
515 /* Load */
516 while (count) {
517 if (ptr[0] != 'S') {
518 BT_ERR("Bad address in firmware");
519 err = -EFAULT;
520 goto error;
521 }
522
523 memset(b, 0, sizeof(b));
524 memcpy(b, ptr + 2, 2);
525 size = simple_strtol(b, NULL, 16);
526
527 memset(b, 0, sizeof(b));
528 memcpy(b, ptr + 4, 8);
529 addr = simple_strtol(b, NULL, 16);
530
531 memset(b, 0, sizeof(b));
532 memcpy(b, ptr + (size * 2) + 2, 2);
533 fcs = simple_strtol(b, NULL, 16);
534
535 memset(b, 0, sizeof(b));
536 for (tmp = 0, i = 0; i < size; i++) {
537 memcpy(b, ptr + (i * 2) + 2, 2);
538 tmp += simple_strtol(b, NULL, 16);
539 }
540
541 if (((tmp + fcs) & 0xff) != 0xff) {
542 BT_ERR("Checksum error in firmware");
543 err = -EILSEQ;
544 goto error;
545 }
546
547 if (ptr[1] == '3') {
548 bt3c_address(iobase, addr);
549
550 memset(b, 0, sizeof(b));
551 for (i = 0; i < (size - 4) / 2; i++) {
552 memcpy(b, ptr + (i * 4) + 12, 4);
553 tmp = simple_strtol(b, NULL, 16);
554 bt3c_put(iobase, tmp);
555 }
556 }
557
558 ptr += (size * 2) + 6;
559 count -= (size * 2) + 6;
560 }
561
562 udelay(17);
563
564 /* Boot */
565 bt3c_address(iobase, 0x3000);
566 outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL);
567
568error:
569 udelay(17);
570
571 /* Clear */
572 bt3c_io_write(iobase, 0x7006, 0x0000);
573 bt3c_io_write(iobase, 0x7005, 0x0000);
574 bt3c_io_write(iobase, 0x7001, 0x0000);
575
576 return err;
577}
578
579
580static int bt3c_open(bt3c_info_t *info)
581{
582 const struct firmware *firmware;
583 struct hci_dev *hdev;
584 int err;
585
586 spin_lock_init(&(info->lock));
587
588 skb_queue_head_init(&(info->txq));
589
590 info->rx_state = RECV_WAIT_PACKET_TYPE;
591 info->rx_count = 0;
592 info->rx_skb = NULL;
593
594 /* Initialize HCI device */
595 hdev = hci_alloc_dev();
596 if (!hdev) {
597 BT_ERR("Can't allocate HCI device");
598 return -ENOMEM;
599 }
600
601 info->hdev = hdev;
602
603 hdev->type = HCI_PCCARD;
604 hdev->driver_data = info;
605
606 hdev->open = bt3c_hci_open;
607 hdev->close = bt3c_hci_close;
608 hdev->flush = bt3c_hci_flush;
609 hdev->send = bt3c_hci_send_frame;
610 hdev->destruct = bt3c_hci_destruct;
611 hdev->ioctl = bt3c_hci_ioctl;
612
613 hdev->owner = THIS_MODULE;
614
615 /* Load firmware */
616 err = request_firmware(&firmware, "BT3CPCC.bin", bt3c_device());
617 if (err < 0) {
618 BT_ERR("Firmware request failed");
619 goto error;
620 }
621
622 err = bt3c_load_firmware(info, firmware->data, firmware->size);
623
624 release_firmware(firmware);
625
626 if (err < 0) {
627 BT_ERR("Firmware loading failed");
628 goto error;
629 }
630
631 /* Timeout before it is safe to send the first HCI packet */
632 msleep(1000);
633
634 /* Register HCI device */
635 err = hci_register_dev(hdev);
636 if (err < 0) {
637 BT_ERR("Can't register HCI device");
638 goto error;
639 }
640
641 return 0;
642
643error:
644 info->hdev = NULL;
645 hci_free_dev(hdev);
646 return err;
647}
648
649
650static int bt3c_close(bt3c_info_t *info)
651{
652 struct hci_dev *hdev = info->hdev;
653
654 if (!hdev)
655 return -ENODEV;
656
657 bt3c_hci_close(hdev);
658
659 if (hci_unregister_dev(hdev) < 0)
660 BT_ERR("Can't unregister HCI device %s", hdev->name);
661
662 hci_free_dev(hdev);
663
664 return 0;
665}
666
667static dev_link_t *bt3c_attach(void)
668{
669 bt3c_info_t *info;
670 client_reg_t client_reg;
671 dev_link_t *link;
672 int ret;
673
674 /* Create new info device */
675 info = kmalloc(sizeof(*info), GFP_KERNEL);
676 if (!info)
677 return NULL;
678 memset(info, 0, sizeof(*info));
679
680 link = &info->link;
681 link->priv = info;
682
683 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
684 link->io.NumPorts1 = 8;
685 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
686 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
687
688 link->irq.Handler = bt3c_interrupt;
689 link->irq.Instance = info;
690
691 link->conf.Attributes = CONF_ENABLE_IRQ;
692 link->conf.Vcc = 50;
693 link->conf.IntType = INT_MEMORY_AND_IO;
694
695 /* Register with Card Services */
696 link->next = dev_list;
697 dev_list = link;
698 client_reg.dev_info = &dev_info;
699 client_reg.EventMask =
700 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
701 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
702 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
703 client_reg.event_handler = &bt3c_event;
704 client_reg.Version = 0x0210;
705 client_reg.event_callback_args.client_data = link;
706
707 ret = pcmcia_register_client(&link->handle, &client_reg);
708 if (ret != CS_SUCCESS) {
709 cs_error(link->handle, RegisterClient, ret);
710 bt3c_detach(link);
711 return NULL;
712 }
713
714 return link;
715}
716
717
718static void bt3c_detach(dev_link_t *link)
719{
720 bt3c_info_t *info = link->priv;
721 dev_link_t **linkp;
722 int ret;
723
724 /* Locate device structure */
725 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
726 if (*linkp == link)
727 break;
728
729 if (*linkp == NULL)
730 return;
731
732 if (link->state & DEV_CONFIG)
733 bt3c_release(link);
734
735 if (link->handle) {
736 ret = pcmcia_deregister_client(link->handle);
737 if (ret != CS_SUCCESS)
738 cs_error(link->handle, DeregisterClient, ret);
739 }
740
741 /* Unlink device structure, free bits */
742 *linkp = link->next;
743
744 kfree(info);
745}
746
747static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
748{
749 int i;
750
751 i = pcmcia_get_tuple_data(handle, tuple);
752 if (i != CS_SUCCESS)
753 return i;
754
755 return pcmcia_parse_tuple(handle, tuple, parse);
756}
757
758static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
759{
760 if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
761 return CS_NO_MORE_ITEMS;
762 return get_tuple(handle, tuple, parse);
763}
764
765static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
766{
767 if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
768 return CS_NO_MORE_ITEMS;
769 return get_tuple(handle, tuple, parse);
770}
771
772static void bt3c_config(dev_link_t *link)
773{
774 static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
775 client_handle_t handle = link->handle;
776 bt3c_info_t *info = link->priv;
777 tuple_t tuple;
778 u_short buf[256];
779 cisparse_t parse;
780 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
781 config_info_t config;
782 int i, j, try, last_ret, last_fn;
783
784 tuple.TupleData = (cisdata_t *)buf;
785 tuple.TupleOffset = 0;
786 tuple.TupleDataMax = 255;
787 tuple.Attributes = 0;
788
789 /* Get configuration register information */
790 tuple.DesiredTuple = CISTPL_CONFIG;
791 last_ret = first_tuple(handle, &tuple, &parse);
792 if (last_ret != CS_SUCCESS) {
793 last_fn = ParseTuple;
794 goto cs_failed;
795 }
796 link->conf.ConfigBase = parse.config.base;
797 link->conf.Present = parse.config.rmask[0];
798
799 /* Configure card */
800 link->state |= DEV_CONFIG;
801 i = pcmcia_get_configuration_info(handle, &config);
802 link->conf.Vcc = config.Vcc;
803
804 /* First pass: look for a config entry that looks normal. */
805 tuple.TupleData = (cisdata_t *)buf;
806 tuple.TupleOffset = 0;
807 tuple.TupleDataMax = 255;
808 tuple.Attributes = 0;
809 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
810 /* Two tries: without IO aliases, then with aliases */
811 for (try = 0; try < 2; try++) {
812 i = first_tuple(handle, &tuple, &parse);
813 while (i != CS_NO_MORE_ITEMS) {
814 if (i != CS_SUCCESS)
815 goto next_entry;
816 if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
817 link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
818 if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
819 link->conf.ConfigIndex = cf->index;
820 link->io.BasePort1 = cf->io.win[0].base;
821 link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
822 i = pcmcia_request_io(link->handle, &link->io);
823 if (i == CS_SUCCESS)
824 goto found_port;
825 }
826next_entry:
827 i = next_tuple(handle, &tuple, &parse);
828 }
829 }
830
831 /* Second pass: try to find an entry that isn't picky about
832 its base address, then try to grab any standard serial port
833 address, and finally try to get any free port. */
834 i = first_tuple(handle, &tuple, &parse);
835 while (i != CS_NO_MORE_ITEMS) {
836 if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
837 link->conf.ConfigIndex = cf->index;
838 for (j = 0; j < 5; j++) {
839 link->io.BasePort1 = base[j];
840 link->io.IOAddrLines = base[j] ? 16 : 3;
841 i = pcmcia_request_io(link->handle, &link->io);
842 if (i == CS_SUCCESS)
843 goto found_port;
844 }
845 }
846 i = next_tuple(handle, &tuple, &parse);
847 }
848
849found_port:
850 if (i != CS_SUCCESS) {
851 BT_ERR("No usable port range found");
852 cs_error(link->handle, RequestIO, i);
853 goto failed;
854 }
855
856 i = pcmcia_request_irq(link->handle, &link->irq);
857 if (i != CS_SUCCESS) {
858 cs_error(link->handle, RequestIRQ, i);
859 link->irq.AssignedIRQ = 0;
860 }
861
862 i = pcmcia_request_configuration(link->handle, &link->conf);
863 if (i != CS_SUCCESS) {
864 cs_error(link->handle, RequestConfiguration, i);
865 goto failed;
866 }
867
868 if (bt3c_open(info) != 0)
869 goto failed;
870
871 strcpy(info->node.dev_name, info->hdev->name);
872 link->dev = &info->node;
873 link->state &= ~DEV_CONFIG_PENDING;
874
875 return;
876
877cs_failed:
878 cs_error(link->handle, last_fn, last_ret);
879
880failed:
881 bt3c_release(link);
882}
883
884
885static void bt3c_release(dev_link_t *link)
886{
887 bt3c_info_t *info = link->priv;
888
889 if (link->state & DEV_PRESENT)
890 bt3c_close(info);
891
892 link->dev = NULL;
893
894 pcmcia_release_configuration(link->handle);
895 pcmcia_release_io(link->handle, &link->io);
896 pcmcia_release_irq(link->handle, &link->irq);
897
898 link->state &= ~DEV_CONFIG;
899}
900
901
902static int bt3c_event(event_t event, int priority, event_callback_args_t *args)
903{
904 dev_link_t *link = args->client_data;
905 bt3c_info_t *info = link->priv;
906
907 switch (event) {
908 case CS_EVENT_CARD_REMOVAL:
909 link->state &= ~DEV_PRESENT;
910 if (link->state & DEV_CONFIG) {
911 bt3c_close(info);
912 bt3c_release(link);
913 }
914 break;
915 case CS_EVENT_CARD_INSERTION:
916 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
917 bt3c_config(link);
918 break;
919 case CS_EVENT_PM_SUSPEND:
920 link->state |= DEV_SUSPEND;
921 /* Fall through... */
922 case CS_EVENT_RESET_PHYSICAL:
923 if (link->state & DEV_CONFIG)
924 pcmcia_release_configuration(link->handle);
925 break;
926 case CS_EVENT_PM_RESUME:
927 link->state &= ~DEV_SUSPEND;
928 /* Fall through... */
929 case CS_EVENT_CARD_RESET:
930 if (DEV_OK(link))
931 pcmcia_request_configuration(link->handle, &link->conf);
932 break;
933 }
934
935 return 0;
936}
937
938static struct pcmcia_driver bt3c_driver = {
939 .owner = THIS_MODULE,
940 .drv = {
941 .name = "bt3c_cs",
942 },
943 .attach = bt3c_attach,
944 .detach = bt3c_detach,
945};
946
947static int __init init_bt3c_cs(void)
948{
949 return pcmcia_register_driver(&bt3c_driver);
950}
951
952
953static void __exit exit_bt3c_cs(void)
954{
955 pcmcia_unregister_driver(&bt3c_driver);
956 BUG_ON(dev_list != NULL);
957}
958
959module_init(init_bt3c_cs);
960module_exit(exit_bt3c_cs);
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
new file mode 100644
index 000000000000..ad8d972444a5
--- /dev/null
+++ b/drivers/bluetooth/btuart_cs.c
@@ -0,0 +1,880 @@
1/*
2 *
3 * Driver for Bluetooth PCMCIA cards with HCI UART interface
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
6 *
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 version 2 as
10 * published by the Free Software Foundation;
11 *
12 * Software distributed under the License is distributed on an "AS
13 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 * implied. See the License for the specific language governing
15 * rights and limitations under the License.
16 *
17 * The initial developer of the original code is David A. Hinds
18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20 *
21 */
22
23#include <linux/config.h>
24#include <linux/module.h>
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/types.h>
30#include <linux/sched.h>
31#include <linux/delay.h>
32#include <linux/errno.h>
33#include <linux/ptrace.h>
34#include <linux/ioport.h>
35#include <linux/spinlock.h>
36#include <linux/moduleparam.h>
37
38#include <linux/skbuff.h>
39#include <linux/string.h>
40#include <linux/serial.h>
41#include <linux/serial_reg.h>
42#include <linux/bitops.h>
43#include <asm/system.h>
44#include <asm/io.h>
45
46#include <pcmcia/version.h>
47#include <pcmcia/cs_types.h>
48#include <pcmcia/cs.h>
49#include <pcmcia/cistpl.h>
50#include <pcmcia/ciscode.h>
51#include <pcmcia/ds.h>
52#include <pcmcia/cisreg.h>
53
54#include <net/bluetooth/bluetooth.h>
55#include <net/bluetooth/hci_core.h>
56
57
58
59/* ======================== Module parameters ======================== */
60
61
62MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
63MODULE_DESCRIPTION("Bluetooth driver for Bluetooth PCMCIA cards with HCI UART interface");
64MODULE_LICENSE("GPL");
65
66
67
68/* ======================== Local structures ======================== */
69
70
71typedef struct btuart_info_t {
72 dev_link_t link;
73 dev_node_t node;
74
75 struct hci_dev *hdev;
76
77 spinlock_t lock; /* For serializing operations */
78
79 struct sk_buff_head txq;
80 unsigned long tx_state;
81
82 unsigned long rx_state;
83 unsigned long rx_count;
84 struct sk_buff *rx_skb;
85} btuart_info_t;
86
87
88static void btuart_config(dev_link_t *link);
89static void btuart_release(dev_link_t *link);
90static int btuart_event(event_t event, int priority, event_callback_args_t *args);
91
92static dev_info_t dev_info = "btuart_cs";
93
94static dev_link_t *btuart_attach(void);
95static void btuart_detach(dev_link_t *);
96
97static dev_link_t *dev_list = NULL;
98
99
100/* Maximum baud rate */
101#define SPEED_MAX 115200
102
103/* Default baud rate: 57600, 115200, 230400 or 460800 */
104#define DEFAULT_BAUD_RATE 115200
105
106
107/* Transmit states */
108#define XMIT_SENDING 1
109#define XMIT_WAKEUP 2
110#define XMIT_WAITING 8
111
112/* Receiver states */
113#define RECV_WAIT_PACKET_TYPE 0
114#define RECV_WAIT_EVENT_HEADER 1
115#define RECV_WAIT_ACL_HEADER 2
116#define RECV_WAIT_SCO_HEADER 3
117#define RECV_WAIT_DATA 4
118
119
120
121/* ======================== Interrupt handling ======================== */
122
123
124static int btuart_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
125{
126 int actual = 0;
127
128 /* Tx FIFO should be empty */
129 if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
130 return 0;
131
132 /* Fill FIFO with current frame */
133 while ((fifo_size-- > 0) && (actual < len)) {
134 /* Transmit next byte */
135 outb(buf[actual], iobase + UART_TX);
136 actual++;
137 }
138
139 return actual;
140}
141
142
143static void btuart_write_wakeup(btuart_info_t *info)
144{
145 if (!info) {
146 BT_ERR("Unknown device");
147 return;
148 }
149
150 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
151 set_bit(XMIT_WAKEUP, &(info->tx_state));
152 return;
153 }
154
155 do {
156 register unsigned int iobase = info->link.io.BasePort1;
157 register struct sk_buff *skb;
158 register int len;
159
160 clear_bit(XMIT_WAKEUP, &(info->tx_state));
161
162 if (!(info->link.state & DEV_PRESENT))
163 return;
164
165 if (!(skb = skb_dequeue(&(info->txq))))
166 break;
167
168 /* Send frame */
169 len = btuart_write(iobase, 16, skb->data, skb->len);
170 set_bit(XMIT_WAKEUP, &(info->tx_state));
171
172 if (len == skb->len) {
173 kfree_skb(skb);
174 } else {
175 skb_pull(skb, len);
176 skb_queue_head(&(info->txq), skb);
177 }
178
179 info->hdev->stat.byte_tx += len;
180
181 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
182
183 clear_bit(XMIT_SENDING, &(info->tx_state));
184}
185
186
187static void btuart_receive(btuart_info_t *info)
188{
189 unsigned int iobase;
190 int boguscount = 0;
191
192 if (!info) {
193 BT_ERR("Unknown device");
194 return;
195 }
196
197 iobase = info->link.io.BasePort1;
198
199 do {
200 info->hdev->stat.byte_rx++;
201
202 /* Allocate packet */
203 if (info->rx_skb == NULL) {
204 info->rx_state = RECV_WAIT_PACKET_TYPE;
205 info->rx_count = 0;
206 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
207 BT_ERR("Can't allocate mem for new packet");
208 return;
209 }
210 }
211
212 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
213
214 info->rx_skb->dev = (void *) info->hdev;
215 info->rx_skb->pkt_type = inb(iobase + UART_RX);
216
217 switch (info->rx_skb->pkt_type) {
218
219 case HCI_EVENT_PKT:
220 info->rx_state = RECV_WAIT_EVENT_HEADER;
221 info->rx_count = HCI_EVENT_HDR_SIZE;
222 break;
223
224 case HCI_ACLDATA_PKT:
225 info->rx_state = RECV_WAIT_ACL_HEADER;
226 info->rx_count = HCI_ACL_HDR_SIZE;
227 break;
228
229 case HCI_SCODATA_PKT:
230 info->rx_state = RECV_WAIT_SCO_HEADER;
231 info->rx_count = HCI_SCO_HDR_SIZE;
232 break;
233
234 default:
235 /* Unknown packet */
236 BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
237 info->hdev->stat.err_rx++;
238 clear_bit(HCI_RUNNING, &(info->hdev->flags));
239
240 kfree_skb(info->rx_skb);
241 info->rx_skb = NULL;
242 break;
243
244 }
245
246 } else {
247
248 *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
249 info->rx_count--;
250
251 if (info->rx_count == 0) {
252
253 int dlen;
254 struct hci_event_hdr *eh;
255 struct hci_acl_hdr *ah;
256 struct hci_sco_hdr *sh;
257
258
259 switch (info->rx_state) {
260
261 case RECV_WAIT_EVENT_HEADER:
262 eh = (struct hci_event_hdr *)(info->rx_skb->data);
263 info->rx_state = RECV_WAIT_DATA;
264 info->rx_count = eh->plen;
265 break;
266
267 case RECV_WAIT_ACL_HEADER:
268 ah = (struct hci_acl_hdr *)(info->rx_skb->data);
269 dlen = __le16_to_cpu(ah->dlen);
270 info->rx_state = RECV_WAIT_DATA;
271 info->rx_count = dlen;
272 break;
273
274 case RECV_WAIT_SCO_HEADER:
275 sh = (struct hci_sco_hdr *)(info->rx_skb->data);
276 info->rx_state = RECV_WAIT_DATA;
277 info->rx_count = sh->dlen;
278 break;
279
280 case RECV_WAIT_DATA:
281 hci_recv_frame(info->rx_skb);
282 info->rx_skb = NULL;
283 break;
284
285 }
286
287 }
288
289 }
290
291 /* Make sure we don't stay here too long */
292 if (boguscount++ > 16)
293 break;
294
295 } while (inb(iobase + UART_LSR) & UART_LSR_DR);
296}
297
298
299static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
300{
301 btuart_info_t *info = dev_inst;
302 unsigned int iobase;
303 int boguscount = 0;
304 int iir, lsr;
305
306 if (!info || !info->hdev) {
307 BT_ERR("Call of irq %d for unknown device", irq);
308 return IRQ_NONE;
309 }
310
311 iobase = info->link.io.BasePort1;
312
313 spin_lock(&(info->lock));
314
315 iir = inb(iobase + UART_IIR) & UART_IIR_ID;
316 while (iir) {
317
318 /* Clear interrupt */
319 lsr = inb(iobase + UART_LSR);
320
321 switch (iir) {
322 case UART_IIR_RLSI:
323 BT_ERR("RLSI");
324 break;
325 case UART_IIR_RDI:
326 /* Receive interrupt */
327 btuart_receive(info);
328 break;
329 case UART_IIR_THRI:
330 if (lsr & UART_LSR_THRE) {
331 /* Transmitter ready for data */
332 btuart_write_wakeup(info);
333 }
334 break;
335 default:
336 BT_ERR("Unhandled IIR=%#x", iir);
337 break;
338 }
339
340 /* Make sure we don't stay here too long */
341 if (boguscount++ > 100)
342 break;
343
344 iir = inb(iobase + UART_IIR) & UART_IIR_ID;
345
346 }
347
348 spin_unlock(&(info->lock));
349
350 return IRQ_HANDLED;
351}
352
353
354static void btuart_change_speed(btuart_info_t *info, unsigned int speed)
355{
356 unsigned long flags;
357 unsigned int iobase;
358 int fcr; /* FIFO control reg */
359 int lcr; /* Line control reg */
360 int divisor;
361
362 if (!info) {
363 BT_ERR("Unknown device");
364 return;
365 }
366
367 iobase = info->link.io.BasePort1;
368
369 spin_lock_irqsave(&(info->lock), flags);
370
371 /* Turn off interrupts */
372 outb(0, iobase + UART_IER);
373
374 divisor = SPEED_MAX / speed;
375
376 fcr = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT;
377
378 /*
379 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
380 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
381 * about this timeout since it will always be fast enough.
382 */
383
384 if (speed < 38400)
385 fcr |= UART_FCR_TRIGGER_1;
386 else
387 fcr |= UART_FCR_TRIGGER_14;
388
389 /* Bluetooth cards use 8N1 */
390 lcr = UART_LCR_WLEN8;
391
392 outb(UART_LCR_DLAB | lcr, iobase + UART_LCR); /* Set DLAB */
393 outb(divisor & 0xff, iobase + UART_DLL); /* Set speed */
394 outb(divisor >> 8, iobase + UART_DLM);
395 outb(lcr, iobase + UART_LCR); /* Set 8N1 */
396 outb(fcr, iobase + UART_FCR); /* Enable FIFO's */
397
398 /* Turn on interrups */
399 outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
400
401 spin_unlock_irqrestore(&(info->lock), flags);
402}
403
404
405
406/* ======================== HCI interface ======================== */
407
408
409static int btuart_hci_flush(struct hci_dev *hdev)
410{
411 btuart_info_t *info = (btuart_info_t *)(hdev->driver_data);
412
413 /* Drop TX queue */
414 skb_queue_purge(&(info->txq));
415
416 return 0;
417}
418
419
420static int btuart_hci_open(struct hci_dev *hdev)
421{
422 set_bit(HCI_RUNNING, &(hdev->flags));
423
424 return 0;
425}
426
427
428static int btuart_hci_close(struct hci_dev *hdev)
429{
430 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
431 return 0;
432
433 btuart_hci_flush(hdev);
434
435 return 0;
436}
437
438
439static int btuart_hci_send_frame(struct sk_buff *skb)
440{
441 btuart_info_t *info;
442 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
443
444 if (!hdev) {
445 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
446 return -ENODEV;
447 }
448
449 info = (btuart_info_t *)(hdev->driver_data);
450
451 switch (skb->pkt_type) {
452 case HCI_COMMAND_PKT:
453 hdev->stat.cmd_tx++;
454 break;
455 case HCI_ACLDATA_PKT:
456 hdev->stat.acl_tx++;
457 break;
458 case HCI_SCODATA_PKT:
459 hdev->stat.sco_tx++;
460 break;
461 };
462
463 /* Prepend skb with frame type */
464 memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
465 skb_queue_tail(&(info->txq), skb);
466
467 btuart_write_wakeup(info);
468
469 return 0;
470}
471
472
473static void btuart_hci_destruct(struct hci_dev *hdev)
474{
475}
476
477
478static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
479{
480 return -ENOIOCTLCMD;
481}
482
483
484
485/* ======================== Card services HCI interaction ======================== */
486
487
488static int btuart_open(btuart_info_t *info)
489{
490 unsigned long flags;
491 unsigned int iobase = info->link.io.BasePort1;
492 struct hci_dev *hdev;
493
494 spin_lock_init(&(info->lock));
495
496 skb_queue_head_init(&(info->txq));
497
498 info->rx_state = RECV_WAIT_PACKET_TYPE;
499 info->rx_count = 0;
500 info->rx_skb = NULL;
501
502 /* Initialize HCI device */
503 hdev = hci_alloc_dev();
504 if (!hdev) {
505 BT_ERR("Can't allocate HCI device");
506 return -ENOMEM;
507 }
508
509 info->hdev = hdev;
510
511 hdev->type = HCI_PCCARD;
512 hdev->driver_data = info;
513
514 hdev->open = btuart_hci_open;
515 hdev->close = btuart_hci_close;
516 hdev->flush = btuart_hci_flush;
517 hdev->send = btuart_hci_send_frame;
518 hdev->destruct = btuart_hci_destruct;
519 hdev->ioctl = btuart_hci_ioctl;
520
521 hdev->owner = THIS_MODULE;
522
523 spin_lock_irqsave(&(info->lock), flags);
524
525 /* Reset UART */
526 outb(0, iobase + UART_MCR);
527
528 /* Turn off interrupts */
529 outb(0, iobase + UART_IER);
530
531 /* Initialize UART */
532 outb(UART_LCR_WLEN8, iobase + UART_LCR); /* Reset DLAB */
533 outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
534
535 /* Turn on interrupts */
536 // outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
537
538 spin_unlock_irqrestore(&(info->lock), flags);
539
540 btuart_change_speed(info, DEFAULT_BAUD_RATE);
541
542 /* Timeout before it is safe to send the first HCI packet */
543 msleep(1000);
544
545 /* Register HCI device */
546 if (hci_register_dev(hdev) < 0) {
547 BT_ERR("Can't register HCI device");
548 info->hdev = NULL;
549 hci_free_dev(hdev);
550 return -ENODEV;
551 }
552
553 return 0;
554}
555
556
557static int btuart_close(btuart_info_t *info)
558{
559 unsigned long flags;
560 unsigned int iobase = info->link.io.BasePort1;
561 struct hci_dev *hdev = info->hdev;
562
563 if (!hdev)
564 return -ENODEV;
565
566 btuart_hci_close(hdev);
567
568 spin_lock_irqsave(&(info->lock), flags);
569
570 /* Reset UART */
571 outb(0, iobase + UART_MCR);
572
573 /* Turn off interrupts */
574 outb(0, iobase + UART_IER);
575
576 spin_unlock_irqrestore(&(info->lock), flags);
577
578 if (hci_unregister_dev(hdev) < 0)
579 BT_ERR("Can't unregister HCI device %s", hdev->name);
580
581 hci_free_dev(hdev);
582
583 return 0;
584}
585
586static dev_link_t *btuart_attach(void)
587{
588 btuart_info_t *info;
589 client_reg_t client_reg;
590 dev_link_t *link;
591 int ret;
592
593 /* Create new info device */
594 info = kmalloc(sizeof(*info), GFP_KERNEL);
595 if (!info)
596 return NULL;
597 memset(info, 0, sizeof(*info));
598
599 link = &info->link;
600 link->priv = info;
601
602 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
603 link->io.NumPorts1 = 8;
604 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
605 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
606
607 link->irq.Handler = btuart_interrupt;
608 link->irq.Instance = info;
609
610 link->conf.Attributes = CONF_ENABLE_IRQ;
611 link->conf.Vcc = 50;
612 link->conf.IntType = INT_MEMORY_AND_IO;
613
614 /* Register with Card Services */
615 link->next = dev_list;
616 dev_list = link;
617 client_reg.dev_info = &dev_info;
618 client_reg.EventMask =
619 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
620 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
621 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
622 client_reg.event_handler = &btuart_event;
623 client_reg.Version = 0x0210;
624 client_reg.event_callback_args.client_data = link;
625
626 ret = pcmcia_register_client(&link->handle, &client_reg);
627 if (ret != CS_SUCCESS) {
628 cs_error(link->handle, RegisterClient, ret);
629 btuart_detach(link);
630 return NULL;
631 }
632
633 return link;
634}
635
636
637static void btuart_detach(dev_link_t *link)
638{
639 btuart_info_t *info = link->priv;
640 dev_link_t **linkp;
641 int ret;
642
643 /* Locate device structure */
644 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
645 if (*linkp == link)
646 break;
647
648 if (*linkp == NULL)
649 return;
650
651 if (link->state & DEV_CONFIG)
652 btuart_release(link);
653
654 if (link->handle) {
655 ret = pcmcia_deregister_client(link->handle);
656 if (ret != CS_SUCCESS)
657 cs_error(link->handle, DeregisterClient, ret);
658 }
659
660 /* Unlink device structure, free bits */
661 *linkp = link->next;
662
663 kfree(info);
664}
665
666static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
667{
668 int i;
669
670 i = pcmcia_get_tuple_data(handle, tuple);
671 if (i != CS_SUCCESS)
672 return i;
673
674 return pcmcia_parse_tuple(handle, tuple, parse);
675}
676
677static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
678{
679 if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
680 return CS_NO_MORE_ITEMS;
681 return get_tuple(handle, tuple, parse);
682}
683
684static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
685{
686 if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
687 return CS_NO_MORE_ITEMS;
688 return get_tuple(handle, tuple, parse);
689}
690
691static void btuart_config(dev_link_t *link)
692{
693 static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
694 client_handle_t handle = link->handle;
695 btuart_info_t *info = link->priv;
696 tuple_t tuple;
697 u_short buf[256];
698 cisparse_t parse;
699 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
700 config_info_t config;
701 int i, j, try, last_ret, last_fn;
702
703 tuple.TupleData = (cisdata_t *)buf;
704 tuple.TupleOffset = 0;
705 tuple.TupleDataMax = 255;
706 tuple.Attributes = 0;
707
708 /* Get configuration register information */
709 tuple.DesiredTuple = CISTPL_CONFIG;
710 last_ret = first_tuple(handle, &tuple, &parse);
711 if (last_ret != CS_SUCCESS) {
712 last_fn = ParseTuple;
713 goto cs_failed;
714 }
715 link->conf.ConfigBase = parse.config.base;
716 link->conf.Present = parse.config.rmask[0];
717
718 /* Configure card */
719 link->state |= DEV_CONFIG;
720 i = pcmcia_get_configuration_info(handle, &config);
721 link->conf.Vcc = config.Vcc;
722
723 /* First pass: look for a config entry that looks normal. */
724 tuple.TupleData = (cisdata_t *) buf;
725 tuple.TupleOffset = 0;
726 tuple.TupleDataMax = 255;
727 tuple.Attributes = 0;
728 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
729 /* Two tries: without IO aliases, then with aliases */
730 for (try = 0; try < 2; try++) {
731 i = first_tuple(handle, &tuple, &parse);
732 while (i != CS_NO_MORE_ITEMS) {
733 if (i != CS_SUCCESS)
734 goto next_entry;
735 if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
736 link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
737 if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
738 link->conf.ConfigIndex = cf->index;
739 link->io.BasePort1 = cf->io.win[0].base;
740 link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
741 i = pcmcia_request_io(link->handle, &link->io);
742 if (i == CS_SUCCESS)
743 goto found_port;
744 }
745next_entry:
746 i = next_tuple(handle, &tuple, &parse);
747 }
748 }
749
750 /* Second pass: try to find an entry that isn't picky about
751 its base address, then try to grab any standard serial port
752 address, and finally try to get any free port. */
753 i = first_tuple(handle, &tuple, &parse);
754 while (i != CS_NO_MORE_ITEMS) {
755 if ((i == CS_SUCCESS) && (cf->io.nwin > 0)
756 && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
757 link->conf.ConfigIndex = cf->index;
758 for (j = 0; j < 5; j++) {
759 link->io.BasePort1 = base[j];
760 link->io.IOAddrLines = base[j] ? 16 : 3;
761 i = pcmcia_request_io(link->handle, &link->io);
762 if (i == CS_SUCCESS)
763 goto found_port;
764 }
765 }
766 i = next_tuple(handle, &tuple, &parse);
767 }
768
769found_port:
770 if (i != CS_SUCCESS) {
771 BT_ERR("No usable port range found");
772 cs_error(link->handle, RequestIO, i);
773 goto failed;
774 }
775
776 i = pcmcia_request_irq(link->handle, &link->irq);
777 if (i != CS_SUCCESS) {
778 cs_error(link->handle, RequestIRQ, i);
779 link->irq.AssignedIRQ = 0;
780 }
781
782 i = pcmcia_request_configuration(link->handle, &link->conf);
783 if (i != CS_SUCCESS) {
784 cs_error(link->handle, RequestConfiguration, i);
785 goto failed;
786 }
787
788 if (btuart_open(info) != 0)
789 goto failed;
790
791 strcpy(info->node.dev_name, info->hdev->name);
792 link->dev = &info->node;
793 link->state &= ~DEV_CONFIG_PENDING;
794
795 return;
796
797cs_failed:
798 cs_error(link->handle, last_fn, last_ret);
799
800failed:
801 btuart_release(link);
802}
803
804
805static void btuart_release(dev_link_t *link)
806{
807 btuart_info_t *info = link->priv;
808
809 if (link->state & DEV_PRESENT)
810 btuart_close(info);
811
812 link->dev = NULL;
813
814 pcmcia_release_configuration(link->handle);
815 pcmcia_release_io(link->handle, &link->io);
816 pcmcia_release_irq(link->handle, &link->irq);
817
818 link->state &= ~DEV_CONFIG;
819}
820
821
822static int btuart_event(event_t event, int priority, event_callback_args_t *args)
823{
824 dev_link_t *link = args->client_data;
825 btuart_info_t *info = link->priv;
826
827 switch (event) {
828 case CS_EVENT_CARD_REMOVAL:
829 link->state &= ~DEV_PRESENT;
830 if (link->state & DEV_CONFIG) {
831 btuart_close(info);
832 btuart_release(link);
833 }
834 break;
835 case CS_EVENT_CARD_INSERTION:
836 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
837 btuart_config(link);
838 break;
839 case CS_EVENT_PM_SUSPEND:
840 link->state |= DEV_SUSPEND;
841 /* Fall through... */
842 case CS_EVENT_RESET_PHYSICAL:
843 if (link->state & DEV_CONFIG)
844 pcmcia_release_configuration(link->handle);
845 break;
846 case CS_EVENT_PM_RESUME:
847 link->state &= ~DEV_SUSPEND;
848 /* Fall through... */
849 case CS_EVENT_CARD_RESET:
850 if (DEV_OK(link))
851 pcmcia_request_configuration(link->handle, &link->conf);
852 break;
853 }
854
855 return 0;
856}
857
858static struct pcmcia_driver btuart_driver = {
859 .owner = THIS_MODULE,
860 .drv = {
861 .name = "btuart_cs",
862 },
863 .attach = btuart_attach,
864 .detach = btuart_detach,
865};
866
867static int __init init_btuart_cs(void)
868{
869 return pcmcia_register_driver(&btuart_driver);
870}
871
872
873static void __exit exit_btuart_cs(void)
874{
875 pcmcia_unregister_driver(&btuart_driver);
876 BUG_ON(dev_list != NULL);
877}
878
879module_init(init_btuart_cs);
880module_exit(exit_btuart_cs);
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
new file mode 100644
index 000000000000..fe954e5d9a1d
--- /dev/null
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -0,0 +1,832 @@
1/*
2 *
3 * A driver for Nokia Connectivity Card DTL-1 devices
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
6 *
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 version 2 as
10 * published by the Free Software Foundation;
11 *
12 * Software distributed under the License is distributed on an "AS
13 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 * implied. See the License for the specific language governing
15 * rights and limitations under the License.
16 *
17 * The initial developer of the original code is David A. Hinds
18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20 *
21 */
22
23#include <linux/config.h>
24#include <linux/module.h>
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/types.h>
30#include <linux/sched.h>
31#include <linux/delay.h>
32#include <linux/errno.h>
33#include <linux/ptrace.h>
34#include <linux/ioport.h>
35#include <linux/spinlock.h>
36#include <linux/moduleparam.h>
37
38#include <linux/skbuff.h>
39#include <linux/string.h>
40#include <linux/serial.h>
41#include <linux/serial_reg.h>
42#include <linux/bitops.h>
43#include <asm/system.h>
44#include <asm/io.h>
45
46#include <pcmcia/version.h>
47#include <pcmcia/cs_types.h>
48#include <pcmcia/cs.h>
49#include <pcmcia/cistpl.h>
50#include <pcmcia/ciscode.h>
51#include <pcmcia/ds.h>
52#include <pcmcia/cisreg.h>
53
54#include <net/bluetooth/bluetooth.h>
55#include <net/bluetooth/hci_core.h>
56
57
58
59/* ======================== Module parameters ======================== */
60
61
62MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
63MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
64MODULE_LICENSE("GPL");
65
66
67
68/* ======================== Local structures ======================== */
69
70
71typedef struct dtl1_info_t {
72 dev_link_t link;
73 dev_node_t node;
74
75 struct hci_dev *hdev;
76
77 spinlock_t lock; /* For serializing operations */
78
79 unsigned long flowmask; /* HCI flow mask */
80 int ri_latch;
81
82 struct sk_buff_head txq;
83 unsigned long tx_state;
84
85 unsigned long rx_state;
86 unsigned long rx_count;
87 struct sk_buff *rx_skb;
88} dtl1_info_t;
89
90
91static void dtl1_config(dev_link_t *link);
92static void dtl1_release(dev_link_t *link);
93static int dtl1_event(event_t event, int priority, event_callback_args_t *args);
94
95static dev_info_t dev_info = "dtl1_cs";
96
97static dev_link_t *dtl1_attach(void);
98static void dtl1_detach(dev_link_t *);
99
100static dev_link_t *dev_list = NULL;
101
102
103/* Transmit states */
104#define XMIT_SENDING 1
105#define XMIT_WAKEUP 2
106#define XMIT_WAITING 8
107
108/* Receiver States */
109#define RECV_WAIT_NSH 0
110#define RECV_WAIT_DATA 1
111
112
113typedef struct {
114 u8 type;
115 u8 zero;
116 u16 len;
117} __attribute__ ((packed)) nsh_t; /* Nokia Specific Header */
118
119#define NSHL 4 /* Nokia Specific Header Length */
120
121
122
123/* ======================== Interrupt handling ======================== */
124
125
126static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
127{
128 int actual = 0;
129
130 /* Tx FIFO should be empty */
131 if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
132 return 0;
133
134 /* Fill FIFO with current frame */
135 while ((fifo_size-- > 0) && (actual < len)) {
136 /* Transmit next byte */
137 outb(buf[actual], iobase + UART_TX);
138 actual++;
139 }
140
141 return actual;
142}
143
144
145static void dtl1_write_wakeup(dtl1_info_t *info)
146{
147 if (!info) {
148 BT_ERR("Unknown device");
149 return;
150 }
151
152 if (test_bit(XMIT_WAITING, &(info->tx_state))) {
153 set_bit(XMIT_WAKEUP, &(info->tx_state));
154 return;
155 }
156
157 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
158 set_bit(XMIT_WAKEUP, &(info->tx_state));
159 return;
160 }
161
162 do {
163 register unsigned int iobase = info->link.io.BasePort1;
164 register struct sk_buff *skb;
165 register int len;
166
167 clear_bit(XMIT_WAKEUP, &(info->tx_state));
168
169 if (!(info->link.state & DEV_PRESENT))
170 return;
171
172 if (!(skb = skb_dequeue(&(info->txq))))
173 break;
174
175 /* Send frame */
176 len = dtl1_write(iobase, 32, skb->data, skb->len);
177
178 if (len == skb->len) {
179 set_bit(XMIT_WAITING, &(info->tx_state));
180 kfree_skb(skb);
181 } else {
182 skb_pull(skb, len);
183 skb_queue_head(&(info->txq), skb);
184 }
185
186 info->hdev->stat.byte_tx += len;
187
188 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
189
190 clear_bit(XMIT_SENDING, &(info->tx_state));
191}
192
193
194static void dtl1_control(dtl1_info_t *info, struct sk_buff *skb)
195{
196 u8 flowmask = *(u8 *)skb->data;
197 int i;
198
199 printk(KERN_INFO "Bluetooth: Nokia control data =");
200 for (i = 0; i < skb->len; i++) {
201 printk(" %02x", skb->data[i]);
202 }
203 printk("\n");
204
205 /* transition to active state */
206 if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
207 clear_bit(XMIT_WAITING, &(info->tx_state));
208 dtl1_write_wakeup(info);
209 }
210
211 info->flowmask = flowmask;
212
213 kfree_skb(skb);
214}
215
216
217static void dtl1_receive(dtl1_info_t *info)
218{
219 unsigned int iobase;
220 nsh_t *nsh;
221 int boguscount = 0;
222
223 if (!info) {
224 BT_ERR("Unknown device");
225 return;
226 }
227
228 iobase = info->link.io.BasePort1;
229
230 do {
231 info->hdev->stat.byte_rx++;
232
233 /* Allocate packet */
234 if (info->rx_skb == NULL)
235 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
236 BT_ERR("Can't allocate mem for new packet");
237 info->rx_state = RECV_WAIT_NSH;
238 info->rx_count = NSHL;
239 return;
240 }
241
242 *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
243 nsh = (nsh_t *)info->rx_skb->data;
244
245 info->rx_count--;
246
247 if (info->rx_count == 0) {
248
249 switch (info->rx_state) {
250 case RECV_WAIT_NSH:
251 info->rx_state = RECV_WAIT_DATA;
252 info->rx_count = nsh->len + (nsh->len & 0x0001);
253 break;
254 case RECV_WAIT_DATA:
255 info->rx_skb->pkt_type = nsh->type;
256
257 /* remove PAD byte if it exists */
258 if (nsh->len & 0x0001) {
259 info->rx_skb->tail--;
260 info->rx_skb->len--;
261 }
262
263 /* remove NSH */
264 skb_pull(info->rx_skb, NSHL);
265
266 switch (info->rx_skb->pkt_type) {
267 case 0x80:
268 /* control data for the Nokia Card */
269 dtl1_control(info, info->rx_skb);
270 break;
271 case 0x82:
272 case 0x83:
273 case 0x84:
274 /* send frame to the HCI layer */
275 info->rx_skb->dev = (void *) info->hdev;
276 info->rx_skb->pkt_type &= 0x0f;
277 hci_recv_frame(info->rx_skb);
278 break;
279 default:
280 /* unknown packet */
281 BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
282 kfree_skb(info->rx_skb);
283 break;
284 }
285
286 info->rx_state = RECV_WAIT_NSH;
287 info->rx_count = NSHL;
288 info->rx_skb = NULL;
289 break;
290 }
291
292 }
293
294 /* Make sure we don't stay here too long */
295 if (boguscount++ > 32)
296 break;
297
298 } while (inb(iobase + UART_LSR) & UART_LSR_DR);
299}
300
301
302static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
303{
304 dtl1_info_t *info = dev_inst;
305 unsigned int iobase;
306 unsigned char msr;
307 int boguscount = 0;
308 int iir, lsr;
309
310 if (!info || !info->hdev) {
311 BT_ERR("Call of irq %d for unknown device", irq);
312 return IRQ_NONE;
313 }
314
315 iobase = info->link.io.BasePort1;
316
317 spin_lock(&(info->lock));
318
319 iir = inb(iobase + UART_IIR) & UART_IIR_ID;
320 while (iir) {
321
322 /* Clear interrupt */
323 lsr = inb(iobase + UART_LSR);
324
325 switch (iir) {
326 case UART_IIR_RLSI:
327 BT_ERR("RLSI");
328 break;
329 case UART_IIR_RDI:
330 /* Receive interrupt */
331 dtl1_receive(info);
332 break;
333 case UART_IIR_THRI:
334 if (lsr & UART_LSR_THRE) {
335 /* Transmitter ready for data */
336 dtl1_write_wakeup(info);
337 }
338 break;
339 default:
340 BT_ERR("Unhandled IIR=%#x", iir);
341 break;
342 }
343
344 /* Make sure we don't stay here too long */
345 if (boguscount++ > 100)
346 break;
347
348 iir = inb(iobase + UART_IIR) & UART_IIR_ID;
349
350 }
351
352 msr = inb(iobase + UART_MSR);
353
354 if (info->ri_latch ^ (msr & UART_MSR_RI)) {
355 info->ri_latch = msr & UART_MSR_RI;
356 clear_bit(XMIT_WAITING, &(info->tx_state));
357 dtl1_write_wakeup(info);
358 }
359
360 spin_unlock(&(info->lock));
361
362 return IRQ_HANDLED;
363}
364
365
366
367/* ======================== HCI interface ======================== */
368
369
370static int dtl1_hci_open(struct hci_dev *hdev)
371{
372 set_bit(HCI_RUNNING, &(hdev->flags));
373
374 return 0;
375}
376
377
378static int dtl1_hci_flush(struct hci_dev *hdev)
379{
380 dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data);
381
382 /* Drop TX queue */
383 skb_queue_purge(&(info->txq));
384
385 return 0;
386}
387
388
389static int dtl1_hci_close(struct hci_dev *hdev)
390{
391 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
392 return 0;
393
394 dtl1_hci_flush(hdev);
395
396 return 0;
397}
398
399
400static int dtl1_hci_send_frame(struct sk_buff *skb)
401{
402 dtl1_info_t *info;
403 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
404 struct sk_buff *s;
405 nsh_t nsh;
406
407 if (!hdev) {
408 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
409 return -ENODEV;
410 }
411
412 info = (dtl1_info_t *)(hdev->driver_data);
413
414 switch (skb->pkt_type) {
415 case HCI_COMMAND_PKT:
416 hdev->stat.cmd_tx++;
417 nsh.type = 0x81;
418 break;
419 case HCI_ACLDATA_PKT:
420 hdev->stat.acl_tx++;
421 nsh.type = 0x82;
422 break;
423 case HCI_SCODATA_PKT:
424 hdev->stat.sco_tx++;
425 nsh.type = 0x83;
426 break;
427 };
428
429 nsh.zero = 0;
430 nsh.len = skb->len;
431
432 s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
433 skb_reserve(s, NSHL);
434 memcpy(skb_put(s, skb->len), skb->data, skb->len);
435 if (skb->len & 0x0001)
436 *skb_put(s, 1) = 0; /* PAD */
437
438 /* Prepend skb with Nokia frame header and queue */
439 memcpy(skb_push(s, NSHL), &nsh, NSHL);
440 skb_queue_tail(&(info->txq), s);
441
442 dtl1_write_wakeup(info);
443
444 kfree_skb(skb);
445
446 return 0;
447}
448
449
450static void dtl1_hci_destruct(struct hci_dev *hdev)
451{
452}
453
454
455static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
456{
457 return -ENOIOCTLCMD;
458}
459
460
461
462/* ======================== Card services HCI interaction ======================== */
463
464
465static int dtl1_open(dtl1_info_t *info)
466{
467 unsigned long flags;
468 unsigned int iobase = info->link.io.BasePort1;
469 struct hci_dev *hdev;
470
471 spin_lock_init(&(info->lock));
472
473 skb_queue_head_init(&(info->txq));
474
475 info->rx_state = RECV_WAIT_NSH;
476 info->rx_count = NSHL;
477 info->rx_skb = NULL;
478
479 set_bit(XMIT_WAITING, &(info->tx_state));
480
481 /* Initialize HCI device */
482 hdev = hci_alloc_dev();
483 if (!hdev) {
484 BT_ERR("Can't allocate HCI device");
485 return -ENOMEM;
486 }
487
488 info->hdev = hdev;
489
490 hdev->type = HCI_PCCARD;
491 hdev->driver_data = info;
492
493 hdev->open = dtl1_hci_open;
494 hdev->close = dtl1_hci_close;
495 hdev->flush = dtl1_hci_flush;
496 hdev->send = dtl1_hci_send_frame;
497 hdev->destruct = dtl1_hci_destruct;
498 hdev->ioctl = dtl1_hci_ioctl;
499
500 hdev->owner = THIS_MODULE;
501
502 spin_lock_irqsave(&(info->lock), flags);
503
504 /* Reset UART */
505 outb(0, iobase + UART_MCR);
506
507 /* Turn off interrupts */
508 outb(0, iobase + UART_IER);
509
510 /* Initialize UART */
511 outb(UART_LCR_WLEN8, iobase + UART_LCR); /* Reset DLAB */
512 outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
513
514 info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI;
515
516 /* Turn on interrupts */
517 outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
518
519 spin_unlock_irqrestore(&(info->lock), flags);
520
521 /* Timeout before it is safe to send the first HCI packet */
522 msleep(2000);
523
524 /* Register HCI device */
525 if (hci_register_dev(hdev) < 0) {
526 BT_ERR("Can't register HCI device");
527 info->hdev = NULL;
528 hci_free_dev(hdev);
529 return -ENODEV;
530 }
531
532 return 0;
533}
534
535
536static int dtl1_close(dtl1_info_t *info)
537{
538 unsigned long flags;
539 unsigned int iobase = info->link.io.BasePort1;
540 struct hci_dev *hdev = info->hdev;
541
542 if (!hdev)
543 return -ENODEV;
544
545 dtl1_hci_close(hdev);
546
547 spin_lock_irqsave(&(info->lock), flags);
548
549 /* Reset UART */
550 outb(0, iobase + UART_MCR);
551
552 /* Turn off interrupts */
553 outb(0, iobase + UART_IER);
554
555 spin_unlock_irqrestore(&(info->lock), flags);
556
557 if (hci_unregister_dev(hdev) < 0)
558 BT_ERR("Can't unregister HCI device %s", hdev->name);
559
560 hci_free_dev(hdev);
561
562 return 0;
563}
564
565static dev_link_t *dtl1_attach(void)
566{
567 dtl1_info_t *info;
568 client_reg_t client_reg;
569 dev_link_t *link;
570 int ret;
571
572 /* Create new info device */
573 info = kmalloc(sizeof(*info), GFP_KERNEL);
574 if (!info)
575 return NULL;
576 memset(info, 0, sizeof(*info));
577
578 link = &info->link;
579 link->priv = info;
580
581 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
582 link->io.NumPorts1 = 8;
583 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
584 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
585
586 link->irq.Handler = dtl1_interrupt;
587 link->irq.Instance = info;
588
589 link->conf.Attributes = CONF_ENABLE_IRQ;
590 link->conf.Vcc = 50;
591 link->conf.IntType = INT_MEMORY_AND_IO;
592
593 /* Register with Card Services */
594 link->next = dev_list;
595 dev_list = link;
596 client_reg.dev_info = &dev_info;
597 client_reg.EventMask =
598 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
599 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
600 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
601 client_reg.event_handler = &dtl1_event;
602 client_reg.Version = 0x0210;
603 client_reg.event_callback_args.client_data = link;
604
605 ret = pcmcia_register_client(&link->handle, &client_reg);
606 if (ret != CS_SUCCESS) {
607 cs_error(link->handle, RegisterClient, ret);
608 dtl1_detach(link);
609 return NULL;
610 }
611
612 return link;
613}
614
615
616static void dtl1_detach(dev_link_t *link)
617{
618 dtl1_info_t *info = link->priv;
619 dev_link_t **linkp;
620 int ret;
621
622 /* Locate device structure */
623 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
624 if (*linkp == link)
625 break;
626
627 if (*linkp == NULL)
628 return;
629
630 if (link->state & DEV_CONFIG)
631 dtl1_release(link);
632
633 if (link->handle) {
634 ret = pcmcia_deregister_client(link->handle);
635 if (ret != CS_SUCCESS)
636 cs_error(link->handle, DeregisterClient, ret);
637 }
638
639 /* Unlink device structure, free bits */
640 *linkp = link->next;
641
642 kfree(info);
643}
644
645static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
646{
647 int i;
648
649 i = pcmcia_get_tuple_data(handle, tuple);
650 if (i != CS_SUCCESS)
651 return i;
652
653 return pcmcia_parse_tuple(handle, tuple, parse);
654}
655
656static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
657{
658 if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
659 return CS_NO_MORE_ITEMS;
660 return get_tuple(handle, tuple, parse);
661}
662
663static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
664{
665 if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
666 return CS_NO_MORE_ITEMS;
667 return get_tuple(handle, tuple, parse);
668}
669
670static void dtl1_config(dev_link_t *link)
671{
672 client_handle_t handle = link->handle;
673 dtl1_info_t *info = link->priv;
674 tuple_t tuple;
675 u_short buf[256];
676 cisparse_t parse;
677 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
678 config_info_t config;
679 int i, last_ret, last_fn;
680
681 tuple.TupleData = (cisdata_t *)buf;
682 tuple.TupleOffset = 0;
683 tuple.TupleDataMax = 255;
684 tuple.Attributes = 0;
685
686 /* Get configuration register information */
687 tuple.DesiredTuple = CISTPL_CONFIG;
688 last_ret = first_tuple(handle, &tuple, &parse);
689 if (last_ret != CS_SUCCESS) {
690 last_fn = ParseTuple;
691 goto cs_failed;
692 }
693 link->conf.ConfigBase = parse.config.base;
694 link->conf.Present = parse.config.rmask[0];
695
696 /* Configure card */
697 link->state |= DEV_CONFIG;
698 i = pcmcia_get_configuration_info(handle, &config);
699 link->conf.Vcc = config.Vcc;
700
701 tuple.TupleData = (cisdata_t *)buf;
702 tuple.TupleOffset = 0;
703 tuple.TupleDataMax = 255;
704 tuple.Attributes = 0;
705 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
706
707 /* Look for a generic full-sized window */
708 link->io.NumPorts1 = 8;
709 i = first_tuple(handle, &tuple, &parse);
710 while (i != CS_NO_MORE_ITEMS) {
711 if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
712 link->conf.ConfigIndex = cf->index;
713 link->io.BasePort1 = cf->io.win[0].base;
714 link->io.NumPorts1 = cf->io.win[0].len; /*yo */
715 link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
716 i = pcmcia_request_io(link->handle, &link->io);
717 if (i == CS_SUCCESS)
718 break;
719 }
720 i = next_tuple(handle, &tuple, &parse);
721 }
722
723 if (i != CS_SUCCESS) {
724 cs_error(link->handle, RequestIO, i);
725 goto failed;
726 }
727
728 i = pcmcia_request_irq(link->handle, &link->irq);
729 if (i != CS_SUCCESS) {
730 cs_error(link->handle, RequestIRQ, i);
731 link->irq.AssignedIRQ = 0;
732 }
733
734 i = pcmcia_request_configuration(link->handle, &link->conf);
735 if (i != CS_SUCCESS) {
736 cs_error(link->handle, RequestConfiguration, i);
737 goto failed;
738 }
739
740 if (dtl1_open(info) != 0)
741 goto failed;
742
743 strcpy(info->node.dev_name, info->hdev->name);
744 link->dev = &info->node;
745 link->state &= ~DEV_CONFIG_PENDING;
746
747 return;
748
749cs_failed:
750 cs_error(link->handle, last_fn, last_ret);
751
752failed:
753 dtl1_release(link);
754}
755
756
757static void dtl1_release(dev_link_t *link)
758{
759 dtl1_info_t *info = link->priv;
760
761 if (link->state & DEV_PRESENT)
762 dtl1_close(info);
763
764 link->dev = NULL;
765
766 pcmcia_release_configuration(link->handle);
767 pcmcia_release_io(link->handle, &link->io);
768 pcmcia_release_irq(link->handle, &link->irq);
769
770 link->state &= ~DEV_CONFIG;
771}
772
773
774static int dtl1_event(event_t event, int priority, event_callback_args_t *args)
775{
776 dev_link_t *link = args->client_data;
777 dtl1_info_t *info = link->priv;
778
779 switch (event) {
780 case CS_EVENT_CARD_REMOVAL:
781 link->state &= ~DEV_PRESENT;
782 if (link->state & DEV_CONFIG) {
783 dtl1_close(info);
784 dtl1_release(link);
785 }
786 break;
787 case CS_EVENT_CARD_INSERTION:
788 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
789 dtl1_config(link);
790 break;
791 case CS_EVENT_PM_SUSPEND:
792 link->state |= DEV_SUSPEND;
793 /* Fall through... */
794 case CS_EVENT_RESET_PHYSICAL:
795 if (link->state & DEV_CONFIG)
796 pcmcia_release_configuration(link->handle);
797 break;
798 case CS_EVENT_PM_RESUME:
799 link->state &= ~DEV_SUSPEND;
800 /* Fall through... */
801 case CS_EVENT_CARD_RESET:
802 if (DEV_OK(link))
803 pcmcia_request_configuration(link->handle, &link->conf);
804 break;
805 }
806
807 return 0;
808}
809
810static struct pcmcia_driver dtl1_driver = {
811 .owner = THIS_MODULE,
812 .drv = {
813 .name = "dtl1_cs",
814 },
815 .attach = dtl1_attach,
816 .detach = dtl1_detach,
817};
818
819static int __init init_dtl1_cs(void)
820{
821 return pcmcia_register_driver(&dtl1_driver);
822}
823
824
825static void __exit exit_dtl1_cs(void)
826{
827 pcmcia_unregister_driver(&dtl1_driver);
828 BUG_ON(dev_list != NULL);
829}
830
831module_init(init_dtl1_cs);
832module_exit(exit_dtl1_cs);
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
new file mode 100644
index 000000000000..c0ed213fc857
--- /dev/null
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -0,0 +1,749 @@
1/*
2 BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
3 Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
4
5 Based on
6 hci_h4.c by Maxim Krasnyansky <maxk@qualcomm.com>
7 ABCSP by Carl Orsborn <cjo@csr.com>
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License version 2 as
11 published by the Free Software Foundation;
12
13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
14 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
16 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
17 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
18 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21
22 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
23 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
24 SOFTWARE IS DISCLAIMED.
25*/
26
27/*
28 * $Id: hci_bcsp.c,v 1.2 2002/09/26 05:05:14 maxk Exp $
29 */
30
31#define VERSION "0.2"
32
33#include <linux/config.h>
34#include <linux/module.h>
35
36#include <linux/kernel.h>
37#include <linux/init.h>
38#include <linux/sched.h>
39#include <linux/types.h>
40#include <linux/fcntl.h>
41#include <linux/interrupt.h>
42#include <linux/ptrace.h>
43#include <linux/poll.h>
44
45#include <linux/slab.h>
46#include <linux/tty.h>
47#include <linux/errno.h>
48#include <linux/string.h>
49#include <linux/signal.h>
50#include <linux/ioctl.h>
51#include <linux/skbuff.h>
52
53#include <net/bluetooth/bluetooth.h>
54#include <net/bluetooth/hci_core.h>
55#include "hci_uart.h"
56#include "hci_bcsp.h"
57
58#ifndef CONFIG_BT_HCIUART_DEBUG
59#undef BT_DBG
60#define BT_DBG( A... )
61#undef BT_DMP
62#define BT_DMP( A... )
63#endif
64
65static int hciextn = 1;
66
67/* ---- BCSP CRC calculation ---- */
68
69/* Table for calculating CRC for polynomial 0x1021, LSB processed first,
70initial value 0xffff, bits shifted in reverse order. */
71
72static const u16 crc_table[] = {
73 0x0000, 0x1081, 0x2102, 0x3183,
74 0x4204, 0x5285, 0x6306, 0x7387,
75 0x8408, 0x9489, 0xa50a, 0xb58b,
76 0xc60c, 0xd68d, 0xe70e, 0xf78f
77};
78
79/* Initialise the crc calculator */
80#define BCSP_CRC_INIT(x) x = 0xffff
81
82/*
83 Update crc with next data byte
84
85 Implementation note
86 The data byte is treated as two nibbles. The crc is generated
87 in reverse, i.e., bits are fed into the register from the top.
88*/
89static void bcsp_crc_update(u16 *crc, u8 d)
90{
91 u16 reg = *crc;
92
93 reg = (reg >> 4) ^ crc_table[(reg ^ d) & 0x000f];
94 reg = (reg >> 4) ^ crc_table[(reg ^ (d >> 4)) & 0x000f];
95
96 *crc = reg;
97}
98
99/*
100 Get reverse of generated crc
101
102 Implementation note
103 The crc generator (bcsp_crc_init() and bcsp_crc_update())
104 creates a reversed crc, so it needs to be swapped back before
105 being passed on.
106*/
107static u16 bcsp_crc_reverse(u16 crc)
108{
109 u16 b, rev;
110
111 for (b = 0, rev = 0; b < 16; b++) {
112 rev = rev << 1;
113 rev |= (crc & 1);
114 crc = crc >> 1;
115 }
116 return (rev);
117}
118
119/* ---- BCSP core ---- */
120
121static void bcsp_slip_msgdelim(struct sk_buff *skb)
122{
123 const char pkt_delim = 0xc0;
124 memcpy(skb_put(skb, 1), &pkt_delim, 1);
125}
126
127static void bcsp_slip_one_byte(struct sk_buff *skb, u8 c)
128{
129 const char esc_c0[2] = { 0xdb, 0xdc };
130 const char esc_db[2] = { 0xdb, 0xdd };
131
132 switch (c) {
133 case 0xc0:
134 memcpy(skb_put(skb, 2), &esc_c0, 2);
135 break;
136 case 0xdb:
137 memcpy(skb_put(skb, 2), &esc_db, 2);
138 break;
139 default:
140 memcpy(skb_put(skb, 1), &c, 1);
141 }
142}
143
144static int bcsp_enqueue(struct hci_uart *hu, struct sk_buff *skb)
145{
146 struct bcsp_struct *bcsp = hu->priv;
147
148 if (skb->len > 0xFFF) {
149 BT_ERR("Packet too long");
150 kfree_skb(skb);
151 return 0;
152 }
153
154 switch (skb->pkt_type) {
155 case HCI_ACLDATA_PKT:
156 case HCI_COMMAND_PKT:
157 skb_queue_tail(&bcsp->rel, skb);
158 break;
159
160 case HCI_SCODATA_PKT:
161 skb_queue_tail(&bcsp->unrel, skb);
162 break;
163
164 default:
165 BT_ERR("Unknown packet type");
166 kfree_skb(skb);
167 break;
168 }
169
170 return 0;
171}
172
173static struct sk_buff *bcsp_prepare_pkt(struct bcsp_struct *bcsp, u8 *data,
174 int len, int pkt_type)
175{
176 struct sk_buff *nskb;
177 u8 hdr[4], chan;
178 int rel, i;
179
180#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
181 u16 BCSP_CRC_INIT(bcsp_txmsg_crc);
182#endif
183
184 switch (pkt_type) {
185 case HCI_ACLDATA_PKT:
186 chan = 6; /* BCSP ACL channel */
187 rel = 1; /* reliable channel */
188 break;
189 case HCI_COMMAND_PKT:
190 chan = 5; /* BCSP cmd/evt channel */
191 rel = 1; /* reliable channel */
192 break;
193 case HCI_SCODATA_PKT:
194 chan = 7; /* BCSP SCO channel */
195 rel = 0; /* unreliable channel */
196 break;
197 case BCSP_LE_PKT:
198 chan = 1; /* BCSP LE channel */
199 rel = 0; /* unreliable channel */
200 break;
201 case BCSP_ACK_PKT:
202 chan = 0; /* BCSP internal channel */
203 rel = 0; /* unreliable channel */
204 break;
205 default:
206 BT_ERR("Unknown packet type");
207 return NULL;
208 }
209
210 if (hciextn && chan == 5) {
211 struct hci_command_hdr *hdr = (struct hci_command_hdr *) data;
212
213 if (hci_opcode_ogf(__le16_to_cpu(hdr->opcode)) == OGF_VENDOR_CMD) {
214 u8 desc = *(data + HCI_COMMAND_HDR_SIZE);
215 if ((desc & 0xf0) == 0xc0) {
216 data += HCI_COMMAND_HDR_SIZE + 1;
217 len -= HCI_COMMAND_HDR_SIZE + 1;
218 chan = desc & 0x0f;
219 }
220 }
221 }
222
223 /* Max len of packet: (original len +4(bcsp hdr) +2(crc))*2
224 (because bytes 0xc0 and 0xdb are escaped, worst case is
225 when the packet is all made of 0xc0 and 0xdb :) )
226 + 2 (0xc0 delimiters at start and end). */
227
228 nskb = alloc_skb((len + 6) * 2 + 2, GFP_ATOMIC);
229 if (!nskb)
230 return NULL;
231
232 nskb->pkt_type = pkt_type;
233
234 bcsp_slip_msgdelim(nskb);
235
236 hdr[0] = bcsp->rxseq_txack << 3;
237 bcsp->txack_req = 0;
238 BT_DBG("We request packet no %u to card", bcsp->rxseq_txack);
239
240 if (rel) {
241 hdr[0] |= 0x80 + bcsp->msgq_txseq;
242 BT_DBG("Sending packet with seqno %u", bcsp->msgq_txseq);
243 bcsp->msgq_txseq = ++(bcsp->msgq_txseq) & 0x07;
244 }
245#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
246 hdr[0] |= 0x40;
247#endif
248
249 hdr[1] = ((len << 4) & 0xff) | chan;
250 hdr[2] = len >> 4;
251 hdr[3] = ~(hdr[0] + hdr[1] + hdr[2]);
252
253 /* Put BCSP header */
254 for (i = 0; i < 4; i++) {
255 bcsp_slip_one_byte(nskb, hdr[i]);
256#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
257 bcsp_crc_update(&bcsp_txmsg_crc, hdr[i]);
258#endif
259 }
260
261 /* Put payload */
262 for (i = 0; i < len; i++) {
263 bcsp_slip_one_byte(nskb, data[i]);
264#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
265 bcsp_crc_update(&bcsp_txmsg_crc, data[i]);
266#endif
267 }
268
269#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
270 /* Put CRC */
271 bcsp_txmsg_crc = bcsp_crc_reverse(bcsp_txmsg_crc);
272 bcsp_slip_one_byte(nskb, (u8) ((bcsp_txmsg_crc >> 8) & 0x00ff));
273 bcsp_slip_one_byte(nskb, (u8) (bcsp_txmsg_crc & 0x00ff));
274#endif
275
276 bcsp_slip_msgdelim(nskb);
277 return nskb;
278}
279
280/* This is a rewrite of pkt_avail in ABCSP */
281static struct sk_buff *bcsp_dequeue(struct hci_uart *hu)
282{
283 struct bcsp_struct *bcsp = hu->priv;
284 unsigned long flags;
285 struct sk_buff *skb;
286
287 /* First of all, check for unreliable messages in the queue,
288 since they have priority */
289
290 if ((skb = skb_dequeue(&bcsp->unrel)) != NULL) {
291 struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, skb->data, skb->len, skb->pkt_type);
292 if (nskb) {
293 kfree_skb(skb);
294 return nskb;
295 } else {
296 skb_queue_head(&bcsp->unrel, skb);
297 BT_ERR("Could not dequeue pkt because alloc_skb failed");
298 }
299 }
300
301 /* Now, try to send a reliable pkt. We can only send a
302 reliable packet if the number of packets sent but not yet ack'ed
303 is < than the winsize */
304
305 spin_lock_irqsave(&bcsp->unack.lock, flags);
306
307 if (bcsp->unack.qlen < BCSP_TXWINSIZE && (skb = skb_dequeue(&bcsp->rel)) != NULL) {
308 struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, skb->data, skb->len, skb->pkt_type);
309 if (nskb) {
310 __skb_queue_tail(&bcsp->unack, skb);
311 mod_timer(&bcsp->tbcsp, jiffies + HZ / 4);
312 spin_unlock_irqrestore(&bcsp->unack.lock, flags);
313 return nskb;
314 } else {
315 skb_queue_head(&bcsp->rel, skb);
316 BT_ERR("Could not dequeue pkt because alloc_skb failed");
317 }
318 }
319
320 spin_unlock_irqrestore(&bcsp->unack.lock, flags);
321
322
323 /* We could not send a reliable packet, either because there are
324 none or because there are too many unack'ed pkts. Did we receive
325 any packets we have not acknowledged yet ? */
326
327 if (bcsp->txack_req) {
328 /* if so, craft an empty ACK pkt and send it on BCSP unreliable
329 channel 0 */
330 struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, NULL, 0, BCSP_ACK_PKT);
331 return nskb;
332 }
333
334 /* We have nothing to send */
335 return NULL;
336}
337
338static int bcsp_flush(struct hci_uart *hu)
339{
340 BT_DBG("hu %p", hu);
341 return 0;
342}
343
344/* Remove ack'ed packets */
345static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
346{
347 unsigned long flags;
348 struct sk_buff *skb;
349 int i, pkts_to_be_removed;
350 u8 seqno;
351
352 spin_lock_irqsave(&bcsp->unack.lock, flags);
353
354 pkts_to_be_removed = bcsp->unack.qlen;
355 seqno = bcsp->msgq_txseq;
356
357 while (pkts_to_be_removed) {
358 if (bcsp->rxack == seqno)
359 break;
360 pkts_to_be_removed--;
361 seqno = (seqno - 1) & 0x07;
362 }
363
364 if (bcsp->rxack != seqno)
365 BT_ERR("Peer acked invalid packet");
366
367 BT_DBG("Removing %u pkts out of %u, up to seqno %u",
368 pkts_to_be_removed, bcsp->unack.qlen, (seqno - 1) & 0x07);
369
370 for (i = 0, skb = ((struct sk_buff *) &bcsp->unack)->next; i < pkts_to_be_removed
371 && skb != (struct sk_buff *) &bcsp->unack; i++) {
372 struct sk_buff *nskb;
373
374 nskb = skb->next;
375 __skb_unlink(skb, &bcsp->unack);
376 kfree_skb(skb);
377 skb = nskb;
378 }
379 if (bcsp->unack.qlen == 0)
380 del_timer(&bcsp->tbcsp);
381 spin_unlock_irqrestore(&bcsp->unack.lock, flags);
382
383 if (i != pkts_to_be_removed)
384 BT_ERR("Removed only %u out of %u pkts", i, pkts_to_be_removed);
385}
386
387/* Handle BCSP link-establishment packets. When we
388 detect a "sync" packet, symptom that the BT module has reset,
389 we do nothing :) (yet) */
390static void bcsp_handle_le_pkt(struct hci_uart *hu)
391{
392 struct bcsp_struct *bcsp = hu->priv;
393 u8 conf_pkt[4] = { 0xad, 0xef, 0xac, 0xed };
394 u8 conf_rsp_pkt[4] = { 0xde, 0xad, 0xd0, 0xd0 };
395 u8 sync_pkt[4] = { 0xda, 0xdc, 0xed, 0xed };
396
397 /* spot "conf" pkts and reply with a "conf rsp" pkt */
398 if (bcsp->rx_skb->data[1] >> 4 == 4 && bcsp->rx_skb->data[2] == 0 &&
399 !memcmp(&bcsp->rx_skb->data[4], conf_pkt, 4)) {
400 struct sk_buff *nskb = alloc_skb(4, GFP_ATOMIC);
401
402 BT_DBG("Found a LE conf pkt");
403 if (!nskb)
404 return;
405 memcpy(skb_put(nskb, 4), conf_rsp_pkt, 4);
406 nskb->pkt_type = BCSP_LE_PKT;
407
408 skb_queue_head(&bcsp->unrel, nskb);
409 hci_uart_tx_wakeup(hu);
410 }
411 /* Spot "sync" pkts. If we find one...disaster! */
412 else if (bcsp->rx_skb->data[1] >> 4 == 4 && bcsp->rx_skb->data[2] == 0 &&
413 !memcmp(&bcsp->rx_skb->data[4], sync_pkt, 4)) {
414 BT_ERR("Found a LE sync pkt, card has reset");
415 }
416}
417
418static inline void bcsp_unslip_one_byte(struct bcsp_struct *bcsp, unsigned char byte)
419{
420 const u8 c0 = 0xc0, db = 0xdb;
421
422 switch (bcsp->rx_esc_state) {
423 case BCSP_ESCSTATE_NOESC:
424 switch (byte) {
425 case 0xdb:
426 bcsp->rx_esc_state = BCSP_ESCSTATE_ESC;
427 break;
428 default:
429 memcpy(skb_put(bcsp->rx_skb, 1), &byte, 1);
430 if ((bcsp->rx_skb-> data[0] & 0x40) != 0 &&
431 bcsp->rx_state != BCSP_W4_CRC)
432 bcsp_crc_update(&bcsp->message_crc, byte);
433 bcsp->rx_count--;
434 }
435 break;
436
437 case BCSP_ESCSTATE_ESC:
438 switch (byte) {
439 case 0xdc:
440 memcpy(skb_put(bcsp->rx_skb, 1), &c0, 1);
441 if ((bcsp->rx_skb-> data[0] & 0x40) != 0 &&
442 bcsp->rx_state != BCSP_W4_CRC)
443 bcsp_crc_update(&bcsp-> message_crc, 0xc0);
444 bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
445 bcsp->rx_count--;
446 break;
447
448 case 0xdd:
449 memcpy(skb_put(bcsp->rx_skb, 1), &db, 1);
450 if ((bcsp->rx_skb-> data[0] & 0x40) != 0 &&
451 bcsp->rx_state != BCSP_W4_CRC)
452 bcsp_crc_update(&bcsp-> message_crc, 0xdb);
453 bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
454 bcsp->rx_count--;
455 break;
456
457 default:
458 BT_ERR ("Invalid byte %02x after esc byte", byte);
459 kfree_skb(bcsp->rx_skb);
460 bcsp->rx_skb = NULL;
461 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
462 bcsp->rx_count = 0;
463 }
464 }
465}
466
467static inline void bcsp_complete_rx_pkt(struct hci_uart *hu)
468{
469 struct bcsp_struct *bcsp = hu->priv;
470 int pass_up;
471
472 if (bcsp->rx_skb->data[0] & 0x80) { /* reliable pkt */
473 BT_DBG("Received seqno %u from card", bcsp->rxseq_txack);
474 bcsp->rxseq_txack++;
475 bcsp->rxseq_txack %= 0x8;
476 bcsp->txack_req = 1;
477
478 /* If needed, transmit an ack pkt */
479 hci_uart_tx_wakeup(hu);
480 }
481
482 bcsp->rxack = (bcsp->rx_skb->data[0] >> 3) & 0x07;
483 BT_DBG("Request for pkt %u from card", bcsp->rxack);
484
485 bcsp_pkt_cull(bcsp);
486 if ((bcsp->rx_skb->data[1] & 0x0f) == 6 &&
487 bcsp->rx_skb->data[0] & 0x80) {
488 bcsp->rx_skb->pkt_type = HCI_ACLDATA_PKT;
489 pass_up = 1;
490 } else if ((bcsp->rx_skb->data[1] & 0x0f) == 5 &&
491 bcsp->rx_skb->data[0] & 0x80) {
492 bcsp->rx_skb->pkt_type = HCI_EVENT_PKT;
493 pass_up = 1;
494 } else if ((bcsp->rx_skb->data[1] & 0x0f) == 7) {
495 bcsp->rx_skb->pkt_type = HCI_SCODATA_PKT;
496 pass_up = 1;
497 } else if ((bcsp->rx_skb->data[1] & 0x0f) == 1 &&
498 !(bcsp->rx_skb->data[0] & 0x80)) {
499 bcsp_handle_le_pkt(hu);
500 pass_up = 0;
501 } else
502 pass_up = 0;
503
504 if (!pass_up) {
505 struct hci_event_hdr hdr;
506 u8 desc = (bcsp->rx_skb->data[1] & 0x0f);
507
508 if (desc != 0 && desc != 1) {
509 if (hciextn) {
510 desc |= 0xc0;
511 skb_pull(bcsp->rx_skb, 4);
512 memcpy(skb_push(bcsp->rx_skb, 1), &desc, 1);
513
514 hdr.evt = 0xff;
515 hdr.plen = bcsp->rx_skb->len;
516 memcpy(skb_push(bcsp->rx_skb, HCI_EVENT_HDR_SIZE), &hdr, HCI_EVENT_HDR_SIZE);
517 bcsp->rx_skb->pkt_type = HCI_EVENT_PKT;
518
519 hci_recv_frame(bcsp->rx_skb);
520 } else {
521 BT_ERR ("Packet for unknown channel (%u %s)",
522 bcsp->rx_skb->data[1] & 0x0f,
523 bcsp->rx_skb->data[0] & 0x80 ?
524 "reliable" : "unreliable");
525 kfree_skb(bcsp->rx_skb);
526 }
527 } else
528 kfree_skb(bcsp->rx_skb);
529 } else {
530 /* Pull out BCSP hdr */
531 skb_pull(bcsp->rx_skb, 4);
532
533 hci_recv_frame(bcsp->rx_skb);
534 }
535 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
536 bcsp->rx_skb = NULL;
537}
538
539/* Recv data */
540static int bcsp_recv(struct hci_uart *hu, void *data, int count)
541{
542 struct bcsp_struct *bcsp = hu->priv;
543 register unsigned char *ptr;
544
545 BT_DBG("hu %p count %d rx_state %d rx_count %ld",
546 hu, count, bcsp->rx_state, bcsp->rx_count);
547
548 ptr = data;
549 while (count) {
550 if (bcsp->rx_count) {
551 if (*ptr == 0xc0) {
552 BT_ERR("Short BCSP packet");
553 kfree_skb(bcsp->rx_skb);
554 bcsp->rx_state = BCSP_W4_PKT_START;
555 bcsp->rx_count = 0;
556 } else
557 bcsp_unslip_one_byte(bcsp, *ptr);
558
559 ptr++; count--;
560 continue;
561 }
562
563 switch (bcsp->rx_state) {
564 case BCSP_W4_BCSP_HDR:
565 if ((0xff & (u8) ~ (bcsp->rx_skb->data[0] + bcsp->rx_skb->data[1] +
566 bcsp->rx_skb->data[2])) != bcsp->rx_skb->data[3]) {
567 BT_ERR("Error in BCSP hdr checksum");
568 kfree_skb(bcsp->rx_skb);
569 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
570 bcsp->rx_count = 0;
571 continue;
572 }
573 if (bcsp->rx_skb->data[0] & 0x80 /* reliable pkt */
574 && (bcsp->rx_skb->data[0] & 0x07) != bcsp->rxseq_txack) {
575 BT_ERR ("Out-of-order packet arrived, got %u expected %u",
576 bcsp->rx_skb->data[0] & 0x07, bcsp->rxseq_txack);
577
578 kfree_skb(bcsp->rx_skb);
579 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
580 bcsp->rx_count = 0;
581 continue;
582 }
583 bcsp->rx_state = BCSP_W4_DATA;
584 bcsp->rx_count = (bcsp->rx_skb->data[1] >> 4) +
585 (bcsp->rx_skb->data[2] << 4); /* May be 0 */
586 continue;
587
588 case BCSP_W4_DATA:
589 if (bcsp->rx_skb->data[0] & 0x40) { /* pkt with crc */
590 bcsp->rx_state = BCSP_W4_CRC;
591 bcsp->rx_count = 2;
592 } else
593 bcsp_complete_rx_pkt(hu);
594 continue;
595
596 case BCSP_W4_CRC:
597 if (bcsp_crc_reverse(bcsp->message_crc) !=
598 (bcsp->rx_skb->data[bcsp->rx_skb->len - 2] << 8) +
599 bcsp->rx_skb->data[bcsp->rx_skb->len - 1]) {
600
601 BT_ERR ("Checksum failed: computed %04x received %04x",
602 bcsp_crc_reverse(bcsp->message_crc),
603 (bcsp->rx_skb-> data[bcsp->rx_skb->len - 2] << 8) +
604 bcsp->rx_skb->data[bcsp->rx_skb->len - 1]);
605
606 kfree_skb(bcsp->rx_skb);
607 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
608 bcsp->rx_count = 0;
609 continue;
610 }
611 skb_trim(bcsp->rx_skb, bcsp->rx_skb->len - 2);
612 bcsp_complete_rx_pkt(hu);
613 continue;
614
615 case BCSP_W4_PKT_DELIMITER:
616 switch (*ptr) {
617 case 0xc0:
618 bcsp->rx_state = BCSP_W4_PKT_START;
619 break;
620 default:
621 /*BT_ERR("Ignoring byte %02x", *ptr);*/
622 break;
623 }
624 ptr++; count--;
625 break;
626
627 case BCSP_W4_PKT_START:
628 switch (*ptr) {
629 case 0xc0:
630 ptr++; count--;
631 break;
632
633 default:
634 bcsp->rx_state = BCSP_W4_BCSP_HDR;
635 bcsp->rx_count = 4;
636 bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
637 BCSP_CRC_INIT(bcsp->message_crc);
638
639 /* Do not increment ptr or decrement count
640 * Allocate packet. Max len of a BCSP pkt=
641 * 0xFFF (payload) +4 (header) +2 (crc) */
642
643 bcsp->rx_skb = bt_skb_alloc(0x1005, GFP_ATOMIC);
644 if (!bcsp->rx_skb) {
645 BT_ERR("Can't allocate mem for new packet");
646 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
647 bcsp->rx_count = 0;
648 return 0;
649 }
650 bcsp->rx_skb->dev = (void *) hu->hdev;
651 break;
652 }
653 break;
654 }
655 }
656 return count;
657}
658
659 /* Arrange to retransmit all messages in the relq. */
660static void bcsp_timed_event(unsigned long arg)
661{
662 struct hci_uart *hu = (struct hci_uart *) arg;
663 struct bcsp_struct *bcsp = hu->priv;
664 struct sk_buff *skb;
665 unsigned long flags;
666
667 BT_DBG("hu %p retransmitting %u pkts", hu, bcsp->unack.qlen);
668
669 spin_lock_irqsave(&bcsp->unack.lock, flags);
670
671 while ((skb = __skb_dequeue_tail(&bcsp->unack)) != NULL) {
672 bcsp->msgq_txseq = (bcsp->msgq_txseq - 1) & 0x07;
673 skb_queue_head(&bcsp->rel, skb);
674 }
675
676 spin_unlock_irqrestore(&bcsp->unack.lock, flags);
677
678 hci_uart_tx_wakeup(hu);
679}
680
681static int bcsp_open(struct hci_uart *hu)
682{
683 struct bcsp_struct *bcsp;
684
685 BT_DBG("hu %p", hu);
686
687 bcsp = kmalloc(sizeof(*bcsp), GFP_ATOMIC);
688 if (!bcsp)
689 return -ENOMEM;
690 memset(bcsp, 0, sizeof(*bcsp));
691
692 hu->priv = bcsp;
693 skb_queue_head_init(&bcsp->unack);
694 skb_queue_head_init(&bcsp->rel);
695 skb_queue_head_init(&bcsp->unrel);
696
697 init_timer(&bcsp->tbcsp);
698 bcsp->tbcsp.function = bcsp_timed_event;
699 bcsp->tbcsp.data = (u_long) hu;
700
701 bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
702
703 return 0;
704}
705
706static int bcsp_close(struct hci_uart *hu)
707{
708 struct bcsp_struct *bcsp = hu->priv;
709 hu->priv = NULL;
710
711 BT_DBG("hu %p", hu);
712
713 skb_queue_purge(&bcsp->unack);
714 skb_queue_purge(&bcsp->rel);
715 skb_queue_purge(&bcsp->unrel);
716 del_timer(&bcsp->tbcsp);
717
718 kfree(bcsp);
719 return 0;
720}
721
722static struct hci_uart_proto bcsp = {
723 .id = HCI_UART_BCSP,
724 .open = bcsp_open,
725 .close = bcsp_close,
726 .enqueue = bcsp_enqueue,
727 .dequeue = bcsp_dequeue,
728 .recv = bcsp_recv,
729 .flush = bcsp_flush
730};
731
732int bcsp_init(void)
733{
734 int err = hci_uart_register_proto(&bcsp);
735 if (!err)
736 BT_INFO("HCI BCSP protocol initialized");
737 else
738 BT_ERR("HCI BCSP protocol registration failed");
739
740 return err;
741}
742
743int bcsp_deinit(void)
744{
745 return hci_uart_unregister_proto(&bcsp);
746}
747
748module_param(hciextn, bool, 0644);
749MODULE_PARM_DESC(hciextn, "Convert HCI Extensions into BCSP packets");
diff --git a/drivers/bluetooth/hci_bcsp.h b/drivers/bluetooth/hci_bcsp.h
new file mode 100644
index 000000000000..a2b3bb92274b
--- /dev/null
+++ b/drivers/bluetooth/hci_bcsp.h
@@ -0,0 +1,70 @@
1/*
2 BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
3 Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
4
5 Based on
6 hci_h4.c by Maxim Krasnyansky <maxk@qualcomm.com>
7 ABCSP by Carl Orsborn <cjo@csr.com>
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License version 2 as
11 published by the Free Software Foundation;
12
13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
14 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
16 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
17 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
18 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21
22 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
23 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
24 SOFTWARE IS DISCLAIMED.
25*/
26
27/*
28 * $Id: hci_bcsp.h,v 1.2 2002/09/26 05:05:14 maxk Exp $
29 */
30
31#ifndef __HCI_BCSP_H__
32#define __HCI_BCSP_H__
33
34#define BCSP_TXWINSIZE 4
35
36#define BCSP_ACK_PKT 0x05
37#define BCSP_LE_PKT 0x06
38
39struct bcsp_struct {
40 struct sk_buff_head unack; /* Unack'ed packets queue */
41 struct sk_buff_head rel; /* Reliable packets queue */
42 struct sk_buff_head unrel; /* Unreliable packets queue */
43
44 unsigned long rx_count;
45 struct sk_buff *rx_skb;
46 u8 rxseq_txack; /* rxseq == txack. */
47 u8 rxack; /* Last packet sent by us that the peer ack'ed */
48 struct timer_list tbcsp;
49
50 enum {
51 BCSP_W4_PKT_DELIMITER,
52 BCSP_W4_PKT_START,
53 BCSP_W4_BCSP_HDR,
54 BCSP_W4_DATA,
55 BCSP_W4_CRC
56 } rx_state;
57
58 enum {
59 BCSP_ESCSTATE_NOESC,
60 BCSP_ESCSTATE_ESC
61 } rx_esc_state;
62
63 u16 message_crc;
64 u8 txack_req; /* Do we need to send ack's to the peer? */
65
66 /* Reliable packet sequence number - used to assign seq to each rel pkt. */
67 u8 msgq_txseq;
68};
69
70#endif /* __HCI_BCSP_H__ */
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
new file mode 100644
index 000000000000..ade94a57bb11
--- /dev/null
+++ b/drivers/bluetooth/hci_h4.c
@@ -0,0 +1,282 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * Bluetooth HCI UART(H4) protocol.
27 *
28 * $Id: hci_h4.c,v 1.3 2002/09/09 01:17:32 maxk Exp $
29 */
30#define VERSION "1.2"
31
32#include <linux/config.h>
33#include <linux/module.h>
34
35#include <linux/kernel.h>
36#include <linux/init.h>
37#include <linux/sched.h>
38#include <linux/types.h>
39#include <linux/fcntl.h>
40#include <linux/interrupt.h>
41#include <linux/ptrace.h>
42#include <linux/poll.h>
43
44#include <linux/slab.h>
45#include <linux/tty.h>
46#include <linux/errno.h>
47#include <linux/string.h>
48#include <linux/signal.h>
49#include <linux/ioctl.h>
50#include <linux/skbuff.h>
51
52#include <net/bluetooth/bluetooth.h>
53#include <net/bluetooth/hci_core.h>
54#include "hci_uart.h"
55#include "hci_h4.h"
56
57#ifndef CONFIG_BT_HCIUART_DEBUG
58#undef BT_DBG
59#define BT_DBG( A... )
60#undef BT_DMP
61#define BT_DMP( A... )
62#endif
63
64/* Initialize protocol */
65static int h4_open(struct hci_uart *hu)
66{
67 struct h4_struct *h4;
68
69 BT_DBG("hu %p", hu);
70
71 h4 = kmalloc(sizeof(*h4), GFP_ATOMIC);
72 if (!h4)
73 return -ENOMEM;
74 memset(h4, 0, sizeof(*h4));
75
76 skb_queue_head_init(&h4->txq);
77
78 hu->priv = h4;
79 return 0;
80}
81
82/* Flush protocol data */
83static int h4_flush(struct hci_uart *hu)
84{
85 struct h4_struct *h4 = hu->priv;
86
87 BT_DBG("hu %p", hu);
88 skb_queue_purge(&h4->txq);
89 return 0;
90}
91
92/* Close protocol */
93static int h4_close(struct hci_uart *hu)
94{
95 struct h4_struct *h4 = hu->priv;
96 hu->priv = NULL;
97
98 BT_DBG("hu %p", hu);
99
100 skb_queue_purge(&h4->txq);
101 if (h4->rx_skb)
102 kfree_skb(h4->rx_skb);
103
104 hu->priv = NULL;
105 kfree(h4);
106 return 0;
107}
108
109/* Enqueue frame for transmittion (padding, crc, etc) */
110static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)
111{
112 struct h4_struct *h4 = hu->priv;
113
114 BT_DBG("hu %p skb %p", hu, skb);
115
116 /* Prepend skb with frame type */
117 memcpy(skb_push(skb, 1), &skb->pkt_type, 1);
118 skb_queue_tail(&h4->txq, skb);
119 return 0;
120}
121
122static inline int h4_check_data_len(struct h4_struct *h4, int len)
123{
124 register int room = skb_tailroom(h4->rx_skb);
125
126 BT_DBG("len %d room %d", len, room);
127 if (!len) {
128 BT_DMP(h4->rx_skb->data, h4->rx_skb->len);
129 hci_recv_frame(h4->rx_skb);
130 } else if (len > room) {
131 BT_ERR("Data length is too large");
132 kfree_skb(h4->rx_skb);
133 } else {
134 h4->rx_state = H4_W4_DATA;
135 h4->rx_count = len;
136 return len;
137 }
138
139 h4->rx_state = H4_W4_PACKET_TYPE;
140 h4->rx_skb = NULL;
141 h4->rx_count = 0;
142 return 0;
143}
144
145/* Recv data */
146static int h4_recv(struct hci_uart *hu, void *data, int count)
147{
148 struct h4_struct *h4 = hu->priv;
149 register char *ptr;
150 struct hci_event_hdr *eh;
151 struct hci_acl_hdr *ah;
152 struct hci_sco_hdr *sh;
153 register int len, type, dlen;
154
155 BT_DBG("hu %p count %d rx_state %ld rx_count %ld",
156 hu, count, h4->rx_state, h4->rx_count);
157
158 ptr = data;
159 while (count) {
160 if (h4->rx_count) {
161 len = min_t(unsigned int, h4->rx_count, count);
162 memcpy(skb_put(h4->rx_skb, len), ptr, len);
163 h4->rx_count -= len; count -= len; ptr += len;
164
165 if (h4->rx_count)
166 continue;
167
168 switch (h4->rx_state) {
169 case H4_W4_DATA:
170 BT_DBG("Complete data");
171
172 BT_DMP(h4->rx_skb->data, h4->rx_skb->len);
173
174 hci_recv_frame(h4->rx_skb);
175
176 h4->rx_state = H4_W4_PACKET_TYPE;
177 h4->rx_skb = NULL;
178 continue;
179
180 case H4_W4_EVENT_HDR:
181 eh = (struct hci_event_hdr *) h4->rx_skb->data;
182
183 BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
184
185 h4_check_data_len(h4, eh->plen);
186 continue;
187
188 case H4_W4_ACL_HDR:
189 ah = (struct hci_acl_hdr *) h4->rx_skb->data;
190 dlen = __le16_to_cpu(ah->dlen);
191
192 BT_DBG("ACL header: dlen %d", dlen);
193
194 h4_check_data_len(h4, dlen);
195 continue;
196
197 case H4_W4_SCO_HDR:
198 sh = (struct hci_sco_hdr *) h4->rx_skb->data;
199
200 BT_DBG("SCO header: dlen %d", sh->dlen);
201
202 h4_check_data_len(h4, sh->dlen);
203 continue;
204 }
205 }
206
207 /* H4_W4_PACKET_TYPE */
208 switch (*ptr) {
209 case HCI_EVENT_PKT:
210 BT_DBG("Event packet");
211 h4->rx_state = H4_W4_EVENT_HDR;
212 h4->rx_count = HCI_EVENT_HDR_SIZE;
213 type = HCI_EVENT_PKT;
214 break;
215
216 case HCI_ACLDATA_PKT:
217 BT_DBG("ACL packet");
218 h4->rx_state = H4_W4_ACL_HDR;
219 h4->rx_count = HCI_ACL_HDR_SIZE;
220 type = HCI_ACLDATA_PKT;
221 break;
222
223 case HCI_SCODATA_PKT:
224 BT_DBG("SCO packet");
225 h4->rx_state = H4_W4_SCO_HDR;
226 h4->rx_count = HCI_SCO_HDR_SIZE;
227 type = HCI_SCODATA_PKT;
228 break;
229
230 default:
231 BT_ERR("Unknown HCI packet type %2.2x", (__u8)*ptr);
232 hu->hdev->stat.err_rx++;
233 ptr++; count--;
234 continue;
235 };
236 ptr++; count--;
237
238 /* Allocate packet */
239 h4->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
240 if (!h4->rx_skb) {
241 BT_ERR("Can't allocate mem for new packet");
242 h4->rx_state = H4_W4_PACKET_TYPE;
243 h4->rx_count = 0;
244 return 0;
245 }
246 h4->rx_skb->dev = (void *) hu->hdev;
247 h4->rx_skb->pkt_type = type;
248 }
249 return count;
250}
251
252static struct sk_buff *h4_dequeue(struct hci_uart *hu)
253{
254 struct h4_struct *h4 = hu->priv;
255 return skb_dequeue(&h4->txq);
256}
257
258static struct hci_uart_proto h4p = {
259 .id = HCI_UART_H4,
260 .open = h4_open,
261 .close = h4_close,
262 .recv = h4_recv,
263 .enqueue = h4_enqueue,
264 .dequeue = h4_dequeue,
265 .flush = h4_flush,
266};
267
268int h4_init(void)
269{
270 int err = hci_uart_register_proto(&h4p);
271 if (!err)
272 BT_INFO("HCI H4 protocol initialized");
273 else
274 BT_ERR("HCI H4 protocol registration failed");
275
276 return err;
277}
278
279int h4_deinit(void)
280{
281 return hci_uart_unregister_proto(&h4p);
282}
diff --git a/drivers/bluetooth/hci_h4.h b/drivers/bluetooth/hci_h4.h
new file mode 100644
index 000000000000..b95ff54bfd47
--- /dev/null
+++ b/drivers/bluetooth/hci_h4.h
@@ -0,0 +1,44 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * $Id: hci_h4.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
27 */
28
29#ifdef __KERNEL__
30struct h4_struct {
31 unsigned long rx_state;
32 unsigned long rx_count;
33 struct sk_buff *rx_skb;
34 struct sk_buff_head txq;
35};
36
37/* H4 receiver States */
38#define H4_W4_PACKET_TYPE 0
39#define H4_W4_EVENT_HDR 1
40#define H4_W4_ACL_HDR 2
41#define H4_W4_SCO_HDR 3
42#define H4_W4_DATA 4
43
44#endif /* __KERNEL__ */
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
new file mode 100644
index 000000000000..9075bbb56ad4
--- /dev/null
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -0,0 +1,593 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * Bluetooth HCI UART driver.
27 *
28 * $Id: hci_ldisc.c,v 1.5 2002/10/02 18:37:20 maxk Exp $
29 */
30#define VERSION "2.1"
31
32#include <linux/config.h>
33#include <linux/module.h>
34
35#include <linux/kernel.h>
36#include <linux/init.h>
37#include <linux/sched.h>
38#include <linux/types.h>
39#include <linux/fcntl.h>
40#include <linux/interrupt.h>
41#include <linux/ptrace.h>
42#include <linux/poll.h>
43
44#include <linux/slab.h>
45#include <linux/tty.h>
46#include <linux/errno.h>
47#include <linux/string.h>
48#include <linux/signal.h>
49#include <linux/ioctl.h>
50#include <linux/skbuff.h>
51
52#include <net/bluetooth/bluetooth.h>
53#include <net/bluetooth/hci_core.h>
54
55#include "hci_uart.h"
56
57#ifndef CONFIG_BT_HCIUART_DEBUG
58#undef BT_DBG
59#define BT_DBG( A... )
60#undef BT_DMP
61#define BT_DMP( A... )
62#endif
63
64static int reset = 0;
65
66static struct hci_uart_proto *hup[HCI_UART_MAX_PROTO];
67
68int hci_uart_register_proto(struct hci_uart_proto *p)
69{
70 if (p->id >= HCI_UART_MAX_PROTO)
71 return -EINVAL;
72
73 if (hup[p->id])
74 return -EEXIST;
75
76 hup[p->id] = p;
77 return 0;
78}
79
80int hci_uart_unregister_proto(struct hci_uart_proto *p)
81{
82 if (p->id >= HCI_UART_MAX_PROTO)
83 return -EINVAL;
84
85 if (!hup[p->id])
86 return -EINVAL;
87
88 hup[p->id] = NULL;
89 return 0;
90}
91
92static struct hci_uart_proto *hci_uart_get_proto(unsigned int id)
93{
94 if (id >= HCI_UART_MAX_PROTO)
95 return NULL;
96 return hup[id];
97}
98
99static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)
100{
101 struct hci_dev *hdev = hu->hdev;
102
103 /* Update HCI stat counters */
104 switch (pkt_type) {
105 case HCI_COMMAND_PKT:
106 hdev->stat.cmd_tx++;
107 break;
108
109 case HCI_ACLDATA_PKT:
110 hdev->stat.acl_tx++;
111 break;
112
113 case HCI_SCODATA_PKT:
114 hdev->stat.cmd_tx++;
115 break;
116 }
117}
118
119static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)
120{
121 struct sk_buff *skb = hu->tx_skb;
122 if (!skb)
123 skb = hu->proto->dequeue(hu);
124 else
125 hu->tx_skb = NULL;
126 return skb;
127}
128
129int hci_uart_tx_wakeup(struct hci_uart *hu)
130{
131 struct tty_struct *tty = hu->tty;
132 struct hci_dev *hdev = hu->hdev;
133 struct sk_buff *skb;
134
135 if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {
136 set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
137 return 0;
138 }
139
140 BT_DBG("");
141
142restart:
143 clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
144
145 while ((skb = hci_uart_dequeue(hu))) {
146 int len;
147
148 set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
149 len = tty->driver->write(tty, skb->data, skb->len);
150 hdev->stat.byte_tx += len;
151
152 skb_pull(skb, len);
153 if (skb->len) {
154 hu->tx_skb = skb;
155 break;
156 }
157
158 hci_uart_tx_complete(hu, skb->pkt_type);
159 kfree_skb(skb);
160 }
161
162 if (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state))
163 goto restart;
164
165 clear_bit(HCI_UART_SENDING, &hu->tx_state);
166 return 0;
167}
168
169/* ------- Interface to HCI layer ------ */
170/* Initialize device */
171static int hci_uart_open(struct hci_dev *hdev)
172{
173 BT_DBG("%s %p", hdev->name, hdev);
174
175 /* Nothing to do for UART driver */
176
177 set_bit(HCI_RUNNING, &hdev->flags);
178 return 0;
179}
180
181/* Reset device */
182static int hci_uart_flush(struct hci_dev *hdev)
183{
184 struct hci_uart *hu = (struct hci_uart *) hdev->driver_data;
185 struct tty_struct *tty = hu->tty;
186
187 BT_DBG("hdev %p tty %p", hdev, tty);
188
189 if (hu->tx_skb) {
190 kfree_skb(hu->tx_skb); hu->tx_skb = NULL;
191 }
192
193 /* Flush any pending characters in the driver and discipline. */
194 tty_ldisc_flush(tty);
195 if (tty->driver->flush_buffer)
196 tty->driver->flush_buffer(tty);
197
198 if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
199 hu->proto->flush(hu);
200
201 return 0;
202}
203
204/* Close device */
205static int hci_uart_close(struct hci_dev *hdev)
206{
207 BT_DBG("hdev %p", hdev);
208
209 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
210 return 0;
211
212 hci_uart_flush(hdev);
213 return 0;
214}
215
216/* Send frames from HCI layer */
217static int hci_uart_send_frame(struct sk_buff *skb)
218{
219 struct hci_dev* hdev = (struct hci_dev *) skb->dev;
220 struct tty_struct *tty;
221 struct hci_uart *hu;
222
223 if (!hdev) {
224 BT_ERR("Frame for uknown device (hdev=NULL)");
225 return -ENODEV;
226 }
227
228 if (!test_bit(HCI_RUNNING, &hdev->flags))
229 return -EBUSY;
230
231 hu = (struct hci_uart *) hdev->driver_data;
232 tty = hu->tty;
233
234 BT_DBG("%s: type %d len %d", hdev->name, skb->pkt_type, skb->len);
235
236 hu->proto->enqueue(hu, skb);
237
238 hci_uart_tx_wakeup(hu);
239 return 0;
240}
241
242static void hci_uart_destruct(struct hci_dev *hdev)
243{
244 struct hci_uart *hu;
245
246 if (!hdev) return;
247
248 BT_DBG("%s", hdev->name);
249
250 hu = (struct hci_uart *) hdev->driver_data;
251 kfree(hu);
252}
253
254/* ------ LDISC part ------ */
255/* hci_uart_tty_open
256 *
257 * Called when line discipline changed to HCI_UART.
258 *
259 * Arguments:
260 * tty pointer to tty info structure
261 * Return Value:
262 * 0 if success, otherwise error code
263 */
264static int hci_uart_tty_open(struct tty_struct *tty)
265{
266 struct hci_uart *hu = (void *) tty->disc_data;
267
268 BT_DBG("tty %p", tty);
269
270 if (hu)
271 return -EEXIST;
272
273 if (!(hu = kmalloc(sizeof(struct hci_uart), GFP_KERNEL))) {
274 BT_ERR("Can't allocate controll structure");
275 return -ENFILE;
276 }
277 memset(hu, 0, sizeof(struct hci_uart));
278
279 tty->disc_data = hu;
280 hu->tty = tty;
281
282 spin_lock_init(&hu->rx_lock);
283
284 /* Flush any pending characters in the driver and line discipline. */
285 /* FIXME: why is this needed. Note don't use ldisc_ref here as the
286 open path is before the ldisc is referencable */
287 if (tty->ldisc.flush_buffer)
288 tty->ldisc.flush_buffer(tty);
289
290 if (tty->driver->flush_buffer)
291 tty->driver->flush_buffer(tty);
292
293 return 0;
294}
295
296/* hci_uart_tty_close()
297 *
298 * Called when the line discipline is changed to something
299 * else, the tty is closed, or the tty detects a hangup.
300 */
301static void hci_uart_tty_close(struct tty_struct *tty)
302{
303 struct hci_uart *hu = (void *)tty->disc_data;
304
305 BT_DBG("tty %p", tty);
306
307 /* Detach from the tty */
308 tty->disc_data = NULL;
309
310 if (hu) {
311 struct hci_dev *hdev = hu->hdev;
312 hci_uart_close(hdev);
313
314 if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
315 hu->proto->close(hu);
316 hci_unregister_dev(hdev);
317 hci_free_dev(hdev);
318 }
319 }
320}
321
322/* hci_uart_tty_wakeup()
323 *
324 * Callback for transmit wakeup. Called when low level
325 * device driver can accept more send data.
326 *
327 * Arguments: tty pointer to associated tty instance data
328 * Return Value: None
329 */
330static void hci_uart_tty_wakeup(struct tty_struct *tty)
331{
332 struct hci_uart *hu = (void *)tty->disc_data;
333
334 BT_DBG("");
335
336 if (!hu)
337 return;
338
339 clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
340
341 if (tty != hu->tty)
342 return;
343
344 if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
345 hci_uart_tx_wakeup(hu);
346}
347
348/* hci_uart_tty_room()
349 *
350 * Callback function from tty driver. Return the amount of
351 * space left in the receiver's buffer to decide if remote
352 * transmitter is to be throttled.
353 *
354 * Arguments: tty pointer to associated tty instance data
355 * Return Value: number of bytes left in receive buffer
356 */
357static int hci_uart_tty_room (struct tty_struct *tty)
358{
359 return 65536;
360}
361
362/* hci_uart_tty_receive()
363 *
364 * Called by tty low level driver when receive data is
365 * available.
366 *
367 * Arguments: tty pointer to tty isntance data
368 * data pointer to received data
369 * flags pointer to flags for data
370 * count count of received data in bytes
371 *
372 * Return Value: None
373 */
374static void hci_uart_tty_receive(struct tty_struct *tty, const __u8 *data, char *flags, int count)
375{
376 struct hci_uart *hu = (void *)tty->disc_data;
377
378 if (!hu || tty != hu->tty)
379 return;
380
381 if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))
382 return;
383
384 spin_lock(&hu->rx_lock);
385 hu->proto->recv(hu, (void *) data, count);
386 hu->hdev->stat.byte_rx += count;
387 spin_unlock(&hu->rx_lock);
388
389 if (test_and_clear_bit(TTY_THROTTLED,&tty->flags) && tty->driver->unthrottle)
390 tty->driver->unthrottle(tty);
391}
392
393static int hci_uart_register_dev(struct hci_uart *hu)
394{
395 struct hci_dev *hdev;
396
397 BT_DBG("");
398
399 /* Initialize and register HCI device */
400 hdev = hci_alloc_dev();
401 if (!hdev) {
402 BT_ERR("Can't allocate HCI device");
403 return -ENOMEM;
404 }
405
406 hu->hdev = hdev;
407
408 hdev->type = HCI_UART;
409 hdev->driver_data = hu;
410
411 hdev->open = hci_uart_open;
412 hdev->close = hci_uart_close;
413 hdev->flush = hci_uart_flush;
414 hdev->send = hci_uart_send_frame;
415 hdev->destruct = hci_uart_destruct;
416
417 hdev->owner = THIS_MODULE;
418
419 if (reset)
420 set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
421
422 if (hci_register_dev(hdev) < 0) {
423 BT_ERR("Can't register HCI device");
424 hci_free_dev(hdev);
425 return -ENODEV;
426 }
427
428 return 0;
429}
430
431static int hci_uart_set_proto(struct hci_uart *hu, int id)
432{
433 struct hci_uart_proto *p;
434 int err;
435
436 p = hci_uart_get_proto(id);
437 if (!p)
438 return -EPROTONOSUPPORT;
439
440 err = p->open(hu);
441 if (err)
442 return err;
443
444 hu->proto = p;
445
446 err = hci_uart_register_dev(hu);
447 if (err) {
448 p->close(hu);
449 return err;
450 }
451 return 0;
452}
453
454/* hci_uart_tty_ioctl()
455 *
456 * Process IOCTL system call for the tty device.
457 *
458 * Arguments:
459 *
460 * tty pointer to tty instance data
461 * file pointer to open file object for device
462 * cmd IOCTL command code
463 * arg argument for IOCTL call (cmd dependent)
464 *
465 * Return Value: Command dependent
466 */
467static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
468 unsigned int cmd, unsigned long arg)
469{
470 struct hci_uart *hu = (void *)tty->disc_data;
471 int err = 0;
472
473 BT_DBG("");
474
475 /* Verify the status of the device */
476 if (!hu)
477 return -EBADF;
478
479 switch (cmd) {
480 case HCIUARTSETPROTO:
481 if (!test_and_set_bit(HCI_UART_PROTO_SET, &hu->flags)) {
482 err = hci_uart_set_proto(hu, arg);
483 if (err) {
484 clear_bit(HCI_UART_PROTO_SET, &hu->flags);
485 return err;
486 }
487 tty->low_latency = 1;
488 } else
489 return -EBUSY;
490
491 case HCIUARTGETPROTO:
492 if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
493 return hu->proto->id;
494 return -EUNATCH;
495
496 default:
497 err = n_tty_ioctl(tty, file, cmd, arg);
498 break;
499 };
500
501 return err;
502}
503
504/*
505 * We don't provide read/write/poll interface for user space.
506 */
507static ssize_t hci_uart_tty_read(struct tty_struct *tty, struct file *file, unsigned char __user *buf, size_t nr)
508{
509 return 0;
510}
511static ssize_t hci_uart_tty_write(struct tty_struct *tty, struct file *file, const unsigned char *data, size_t count)
512{
513 return 0;
514}
515static unsigned int hci_uart_tty_poll(struct tty_struct *tty, struct file *filp, poll_table *wait)
516{
517 return 0;
518}
519
520#ifdef CONFIG_BT_HCIUART_H4
521int h4_init(void);
522int h4_deinit(void);
523#endif
524#ifdef CONFIG_BT_HCIUART_BCSP
525int bcsp_init(void);
526int bcsp_deinit(void);
527#endif
528
529static int __init hci_uart_init(void)
530{
531 static struct tty_ldisc hci_uart_ldisc;
532 int err;
533
534 BT_INFO("HCI UART driver ver %s", VERSION);
535
536 /* Register the tty discipline */
537
538 memset(&hci_uart_ldisc, 0, sizeof (hci_uart_ldisc));
539 hci_uart_ldisc.magic = TTY_LDISC_MAGIC;
540 hci_uart_ldisc.name = "n_hci";
541 hci_uart_ldisc.open = hci_uart_tty_open;
542 hci_uart_ldisc.close = hci_uart_tty_close;
543 hci_uart_ldisc.read = hci_uart_tty_read;
544 hci_uart_ldisc.write = hci_uart_tty_write;
545 hci_uart_ldisc.ioctl = hci_uart_tty_ioctl;
546 hci_uart_ldisc.poll = hci_uart_tty_poll;
547 hci_uart_ldisc.receive_room= hci_uart_tty_room;
548 hci_uart_ldisc.receive_buf = hci_uart_tty_receive;
549 hci_uart_ldisc.write_wakeup= hci_uart_tty_wakeup;
550 hci_uart_ldisc.owner = THIS_MODULE;
551
552 if ((err = tty_register_ldisc(N_HCI, &hci_uart_ldisc))) {
553 BT_ERR("HCI line discipline registration failed. (%d)", err);
554 return err;
555 }
556
557#ifdef CONFIG_BT_HCIUART_H4
558 h4_init();
559#endif
560#ifdef CONFIG_BT_HCIUART_BCSP
561 bcsp_init();
562#endif
563
564 return 0;
565}
566
567static void __exit hci_uart_exit(void)
568{
569 int err;
570
571#ifdef CONFIG_BT_HCIUART_H4
572 h4_deinit();
573#endif
574#ifdef CONFIG_BT_HCIUART_BCSP
575 bcsp_deinit();
576#endif
577
578 /* Release tty registration of line discipline */
579 if ((err = tty_register_ldisc(N_HCI, NULL)))
580 BT_ERR("Can't unregister HCI line discipline (%d)", err);
581}
582
583module_init(hci_uart_init);
584module_exit(hci_uart_exit);
585
586module_param(reset, bool, 0644);
587MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
588
589MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
590MODULE_DESCRIPTION("Bluetooth HCI UART driver ver " VERSION);
591MODULE_VERSION(VERSION);
592MODULE_LICENSE("GPL");
593MODULE_ALIAS_LDISC(N_HCI);
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
new file mode 100644
index 000000000000..0a57d72790ec
--- /dev/null
+++ b/drivers/bluetooth/hci_uart.h
@@ -0,0 +1,82 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * $Id: hci_uart.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
27 */
28
29#ifndef N_HCI
30#define N_HCI 15
31#endif
32
33/* Ioctls */
34#define HCIUARTSETPROTO _IOW('U', 200, int)
35#define HCIUARTGETPROTO _IOR('U', 201, int)
36
37/* UART protocols */
38#define HCI_UART_MAX_PROTO 4
39
40#define HCI_UART_H4 0
41#define HCI_UART_BCSP 1
42#define HCI_UART_3WIRE 2
43#define HCI_UART_H4DS 3
44
45#ifdef __KERNEL__
46struct hci_uart;
47
48struct hci_uart_proto {
49 unsigned int id;
50 int (*open)(struct hci_uart *hu);
51 int (*close)(struct hci_uart *hu);
52 int (*flush)(struct hci_uart *hu);
53 int (*recv)(struct hci_uart *hu, void *data, int len);
54 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
55 struct sk_buff *(*dequeue)(struct hci_uart *hu);
56};
57
58struct hci_uart {
59 struct tty_struct *tty;
60 struct hci_dev *hdev;
61 unsigned long flags;
62
63 struct hci_uart_proto *proto;
64 void *priv;
65
66 struct sk_buff *tx_skb;
67 unsigned long tx_state;
68 spinlock_t rx_lock;
69};
70
71/* HCI_UART flag bits */
72#define HCI_UART_PROTO_SET 0
73
74/* TX states */
75#define HCI_UART_SENDING 1
76#define HCI_UART_TX_WAKEUP 2
77
78int hci_uart_register_proto(struct hci_uart_proto *p);
79int hci_uart_unregister_proto(struct hci_uart_proto *p);
80int hci_uart_tx_wakeup(struct hci_uart *hu);
81
82#endif /* __KERNEL__ */
diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c
new file mode 100644
index 000000000000..b120ecf7b8c9
--- /dev/null
+++ b/drivers/bluetooth/hci_usb.c
@@ -0,0 +1,1075 @@
1/*
2 HCI USB driver for Linux Bluetooth protocol stack (BlueZ)
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
5
6 Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24*/
25
26/*
27 * Bluetooth HCI USB driver.
28 * Based on original USB Bluetooth driver for Linux kernel
29 * Copyright (c) 2000 Greg Kroah-Hartman <greg@kroah.com>
30 * Copyright (c) 2000 Mark Douglas Corner <mcorner@umich.edu>
31 *
32 */
33
34#include <linux/config.h>
35#include <linux/module.h>
36
37#include <linux/kernel.h>
38#include <linux/init.h>
39#include <linux/sched.h>
40#include <linux/unistd.h>
41#include <linux/types.h>
42#include <linux/interrupt.h>
43#include <linux/moduleparam.h>
44
45#include <linux/slab.h>
46#include <linux/errno.h>
47#include <linux/string.h>
48#include <linux/skbuff.h>
49
50#include <linux/usb.h>
51
52#include <net/bluetooth/bluetooth.h>
53#include <net/bluetooth/hci_core.h>
54
55#include "hci_usb.h"
56
57#ifndef CONFIG_BT_HCIUSB_DEBUG
58#undef BT_DBG
59#define BT_DBG(D...)
60#undef BT_DMP
61#define BT_DMP(D...)
62#endif
63
64#ifndef CONFIG_BT_HCIUSB_ZERO_PACKET
65#undef URB_ZERO_PACKET
66#define URB_ZERO_PACKET 0
67#endif
68
69static int ignore = 0;
70static int reset = 0;
71
72#ifdef CONFIG_BT_HCIUSB_SCO
73static int isoc = 2;
74#endif
75
76#define VERSION "2.8"
77
78static struct usb_driver hci_usb_driver;
79
80static struct usb_device_id bluetooth_ids[] = {
81 /* Generic Bluetooth USB device */
82 { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) },
83
84 /* AVM BlueFRITZ! USB v2.0 */
85 { USB_DEVICE(0x057c, 0x3800) },
86
87 /* Bluetooth Ultraport Module from IBM */
88 { USB_DEVICE(0x04bf, 0x030a) },
89
90 /* ALPS Modules with non-standard id */
91 { USB_DEVICE(0x044e, 0x3001) },
92 { USB_DEVICE(0x044e, 0x3002) },
93
94 /* Ericsson with non-standard id */
95 { USB_DEVICE(0x0bdb, 0x1002) },
96
97 { } /* Terminating entry */
98};
99
100MODULE_DEVICE_TABLE (usb, bluetooth_ids);
101
102static struct usb_device_id blacklist_ids[] = {
103 /* Broadcom BCM2033 without firmware */
104 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE },
105
106 /* Broadcom BCM2035 */
107 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_BROKEN_ISOC },
108 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 },
109
110 /* Microsoft Wireless Transceiver for Bluetooth 2.0 */
111 { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET },
112
113 /* ISSC Bluetooth Adapter v3.1 */
114 { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET },
115
116 /* RTX Telecom based adapter with buggy SCO support */
117 { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC },
118
119 /* Digianswer devices */
120 { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER },
121 { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE },
122
123 /* CSR BlueCore Bluetooth Sniffer */
124 { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER },
125
126 { } /* Terminating entry */
127};
128
129static struct _urb *_urb_alloc(int isoc, int gfp)
130{
131 struct _urb *_urb = kmalloc(sizeof(struct _urb) +
132 sizeof(struct usb_iso_packet_descriptor) * isoc, gfp);
133 if (_urb) {
134 memset(_urb, 0, sizeof(*_urb));
135 usb_init_urb(&_urb->urb);
136 }
137 return _urb;
138}
139
140static struct _urb *_urb_dequeue(struct _urb_queue *q)
141{
142 struct _urb *_urb = NULL;
143 unsigned long flags;
144 spin_lock_irqsave(&q->lock, flags);
145 {
146 struct list_head *head = &q->head;
147 struct list_head *next = head->next;
148 if (next != head) {
149 _urb = list_entry(next, struct _urb, list);
150 list_del(next); _urb->queue = NULL;
151 }
152 }
153 spin_unlock_irqrestore(&q->lock, flags);
154 return _urb;
155}
156
157static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs);
158static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs);
159
160#define __pending_tx(husb, type) (&husb->pending_tx[type-1])
161#define __pending_q(husb, type) (&husb->pending_q[type-1])
162#define __completed_q(husb, type) (&husb->completed_q[type-1])
163#define __transmit_q(husb, type) (&husb->transmit_q[type-1])
164#define __reassembly(husb, type) (husb->reassembly[type-1])
165
166static inline struct _urb *__get_completed(struct hci_usb *husb, int type)
167{
168 return _urb_dequeue(__completed_q(husb, type));
169}
170
171#ifdef CONFIG_BT_HCIUSB_SCO
172static void __fill_isoc_desc(struct urb *urb, int len, int mtu)
173{
174 int offset = 0, i;
175
176 BT_DBG("len %d mtu %d", len, mtu);
177
178 for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) {
179 urb->iso_frame_desc[i].offset = offset;
180 urb->iso_frame_desc[i].length = mtu;
181 BT_DBG("desc %d offset %d len %d", i, offset, mtu);
182 }
183 if (len && i < HCI_MAX_ISOC_FRAMES) {
184 urb->iso_frame_desc[i].offset = offset;
185 urb->iso_frame_desc[i].length = len;
186 BT_DBG("desc %d offset %d len %d", i, offset, len);
187 i++;
188 }
189 urb->number_of_packets = i;
190}
191#endif
192
193static int hci_usb_intr_rx_submit(struct hci_usb *husb)
194{
195 struct _urb *_urb;
196 struct urb *urb;
197 int err, pipe, interval, size;
198 void *buf;
199
200 BT_DBG("%s", husb->hdev->name);
201
202 size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize);
203
204 buf = kmalloc(size, GFP_ATOMIC);
205 if (!buf)
206 return -ENOMEM;
207
208 _urb = _urb_alloc(0, GFP_ATOMIC);
209 if (!_urb) {
210 kfree(buf);
211 return -ENOMEM;
212 }
213 _urb->type = HCI_EVENT_PKT;
214 _urb_queue_tail(__pending_q(husb, _urb->type), _urb);
215
216 urb = &_urb->urb;
217 pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress);
218 interval = husb->intr_in_ep->desc.bInterval;
219 usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval);
220
221 err = usb_submit_urb(urb, GFP_ATOMIC);
222 if (err) {
223 BT_ERR("%s intr rx submit failed urb %p err %d",
224 husb->hdev->name, urb, err);
225 _urb_unlink(_urb);
226 _urb_free(_urb);
227 kfree(buf);
228 }
229 return err;
230}
231
232static int hci_usb_bulk_rx_submit(struct hci_usb *husb)
233{
234 struct _urb *_urb;
235 struct urb *urb;
236 int err, pipe, size = HCI_MAX_FRAME_SIZE;
237 void *buf;
238
239 buf = kmalloc(size, GFP_ATOMIC);
240 if (!buf)
241 return -ENOMEM;
242
243 _urb = _urb_alloc(0, GFP_ATOMIC);
244 if (!_urb) {
245 kfree(buf);
246 return -ENOMEM;
247 }
248 _urb->type = HCI_ACLDATA_PKT;
249 _urb_queue_tail(__pending_q(husb, _urb->type), _urb);
250
251 urb = &_urb->urb;
252 pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress);
253 usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb);
254 urb->transfer_flags = 0;
255
256 BT_DBG("%s urb %p", husb->hdev->name, urb);
257
258 err = usb_submit_urb(urb, GFP_ATOMIC);
259 if (err) {
260 BT_ERR("%s bulk rx submit failed urb %p err %d",
261 husb->hdev->name, urb, err);
262 _urb_unlink(_urb);
263 _urb_free(_urb);
264 kfree(buf);
265 }
266 return err;
267}
268
269#ifdef CONFIG_BT_HCIUSB_SCO
270static int hci_usb_isoc_rx_submit(struct hci_usb *husb)
271{
272 struct _urb *_urb;
273 struct urb *urb;
274 int err, mtu, size;
275 void *buf;
276
277 mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize);
278 size = mtu * HCI_MAX_ISOC_FRAMES;
279
280 buf = kmalloc(size, GFP_ATOMIC);
281 if (!buf)
282 return -ENOMEM;
283
284 _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
285 if (!_urb) {
286 kfree(buf);
287 return -ENOMEM;
288 }
289 _urb->type = HCI_SCODATA_PKT;
290 _urb_queue_tail(__pending_q(husb, _urb->type), _urb);
291
292 urb = &_urb->urb;
293
294 urb->context = husb;
295 urb->dev = husb->udev;
296 urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress);
297 urb->complete = hci_usb_rx_complete;
298
299 urb->interval = husb->isoc_in_ep->desc.bInterval;
300
301 urb->transfer_buffer_length = size;
302 urb->transfer_buffer = buf;
303 urb->transfer_flags = URB_ISO_ASAP;
304
305 __fill_isoc_desc(urb, size, mtu);
306
307 BT_DBG("%s urb %p", husb->hdev->name, urb);
308
309 err = usb_submit_urb(urb, GFP_ATOMIC);
310 if (err) {
311 BT_ERR("%s isoc rx submit failed urb %p err %d",
312 husb->hdev->name, urb, err);
313 _urb_unlink(_urb);
314 _urb_free(_urb);
315 kfree(buf);
316 }
317 return err;
318}
319#endif
320
321/* Initialize device */
322static int hci_usb_open(struct hci_dev *hdev)
323{
324 struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
325 int i, err;
326 unsigned long flags;
327
328 BT_DBG("%s", hdev->name);
329
330 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
331 return 0;
332
333 write_lock_irqsave(&husb->completion_lock, flags);
334
335 err = hci_usb_intr_rx_submit(husb);
336 if (!err) {
337 for (i = 0; i < HCI_MAX_BULK_RX; i++)
338 hci_usb_bulk_rx_submit(husb);
339
340#ifdef CONFIG_BT_HCIUSB_SCO
341 if (husb->isoc_iface)
342 for (i = 0; i < HCI_MAX_ISOC_RX; i++)
343 hci_usb_isoc_rx_submit(husb);
344#endif
345 } else {
346 clear_bit(HCI_RUNNING, &hdev->flags);
347 }
348
349 write_unlock_irqrestore(&husb->completion_lock, flags);
350 return err;
351}
352
353/* Reset device */
354static int hci_usb_flush(struct hci_dev *hdev)
355{
356 struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
357 int i;
358
359 BT_DBG("%s", hdev->name);
360
361 for (i = 0; i < 4; i++)
362 skb_queue_purge(&husb->transmit_q[i]);
363 return 0;
364}
365
366static void hci_usb_unlink_urbs(struct hci_usb *husb)
367{
368 int i;
369
370 BT_DBG("%s", husb->hdev->name);
371
372 for (i = 0; i < 4; i++) {
373 struct _urb *_urb;
374 struct urb *urb;
375
376 /* Kill pending requests */
377 while ((_urb = _urb_dequeue(&husb->pending_q[i]))) {
378 urb = &_urb->urb;
379 BT_DBG("%s unlinking _urb %p type %d urb %p",
380 husb->hdev->name, _urb, _urb->type, urb);
381 usb_kill_urb(urb);
382 _urb_queue_tail(__completed_q(husb, _urb->type), _urb);
383 }
384
385 /* Release completed requests */
386 while ((_urb = _urb_dequeue(&husb->completed_q[i]))) {
387 urb = &_urb->urb;
388 BT_DBG("%s freeing _urb %p type %d urb %p",
389 husb->hdev->name, _urb, _urb->type, urb);
390 if (urb->setup_packet)
391 kfree(urb->setup_packet);
392 if (urb->transfer_buffer)
393 kfree(urb->transfer_buffer);
394 _urb_free(_urb);
395 }
396
397 /* Release reassembly buffers */
398 if (husb->reassembly[i]) {
399 kfree_skb(husb->reassembly[i]);
400 husb->reassembly[i] = NULL;
401 }
402 }
403}
404
405/* Close device */
406static int hci_usb_close(struct hci_dev *hdev)
407{
408 struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
409 unsigned long flags;
410
411 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
412 return 0;
413
414 BT_DBG("%s", hdev->name);
415
416 /* Synchronize with completion handlers */
417 write_lock_irqsave(&husb->completion_lock, flags);
418 write_unlock_irqrestore(&husb->completion_lock, flags);
419
420 hci_usb_unlink_urbs(husb);
421 hci_usb_flush(hdev);
422 return 0;
423}
424
425static int __tx_submit(struct hci_usb *husb, struct _urb *_urb)
426{
427 struct urb *urb = &_urb->urb;
428 int err;
429
430 BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type);
431
432 _urb_queue_tail(__pending_q(husb, _urb->type), _urb);
433 err = usb_submit_urb(urb, GFP_ATOMIC);
434 if (err) {
435 BT_ERR("%s tx submit failed urb %p type %d err %d",
436 husb->hdev->name, urb, _urb->type, err);
437 _urb_unlink(_urb);
438 _urb_queue_tail(__completed_q(husb, _urb->type), _urb);
439 } else
440 atomic_inc(__pending_tx(husb, _urb->type));
441
442 return err;
443}
444
445static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb)
446{
447 struct _urb *_urb = __get_completed(husb, skb->pkt_type);
448 struct usb_ctrlrequest *dr;
449 struct urb *urb;
450
451 if (!_urb) {
452 _urb = _urb_alloc(0, GFP_ATOMIC);
453 if (!_urb)
454 return -ENOMEM;
455 _urb->type = skb->pkt_type;
456
457 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
458 if (!dr) {
459 _urb_free(_urb);
460 return -ENOMEM;
461 }
462 } else
463 dr = (void *) _urb->urb.setup_packet;
464
465 dr->bRequestType = husb->ctrl_req;
466 dr->bRequest = 0;
467 dr->wIndex = 0;
468 dr->wValue = 0;
469 dr->wLength = __cpu_to_le16(skb->len);
470
471 urb = &_urb->urb;
472 usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0),
473 (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb);
474
475 BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
476
477 _urb->priv = skb;
478 return __tx_submit(husb, _urb);
479}
480
481static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb)
482{
483 struct _urb *_urb = __get_completed(husb, skb->pkt_type);
484 struct urb *urb;
485 int pipe;
486
487 if (!_urb) {
488 _urb = _urb_alloc(0, GFP_ATOMIC);
489 if (!_urb)
490 return -ENOMEM;
491 _urb->type = skb->pkt_type;
492 }
493
494 urb = &_urb->urb;
495 pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress);
496 usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len,
497 hci_usb_tx_complete, husb);
498 urb->transfer_flags = URB_ZERO_PACKET;
499
500 BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
501
502 _urb->priv = skb;
503 return __tx_submit(husb, _urb);
504}
505
506#ifdef CONFIG_BT_HCIUSB_SCO
507static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb)
508{
509 struct _urb *_urb = __get_completed(husb, skb->pkt_type);
510 struct urb *urb;
511
512 if (!_urb) {
513 _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
514 if (!_urb)
515 return -ENOMEM;
516 _urb->type = skb->pkt_type;
517 }
518
519 BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
520
521 urb = &_urb->urb;
522
523 urb->context = husb;
524 urb->dev = husb->udev;
525 urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress);
526 urb->complete = hci_usb_tx_complete;
527 urb->transfer_flags = URB_ISO_ASAP;
528
529 urb->interval = husb->isoc_out_ep->desc.bInterval;
530
531 urb->transfer_buffer = skb->data;
532 urb->transfer_buffer_length = skb->len;
533
534 __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize));
535
536 _urb->priv = skb;
537 return __tx_submit(husb, _urb);
538}
539#endif
540
541static void hci_usb_tx_process(struct hci_usb *husb)
542{
543 struct sk_buff_head *q;
544 struct sk_buff *skb;
545
546 BT_DBG("%s", husb->hdev->name);
547
548 do {
549 clear_bit(HCI_USB_TX_WAKEUP, &husb->state);
550
551 /* Process command queue */
552 q = __transmit_q(husb, HCI_COMMAND_PKT);
553 if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) &&
554 (skb = skb_dequeue(q))) {
555 if (hci_usb_send_ctrl(husb, skb) < 0)
556 skb_queue_head(q, skb);
557 }
558
559#ifdef CONFIG_BT_HCIUSB_SCO
560 /* Process SCO queue */
561 q = __transmit_q(husb, HCI_SCODATA_PKT);
562 if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX &&
563 (skb = skb_dequeue(q))) {
564 if (hci_usb_send_isoc(husb, skb) < 0)
565 skb_queue_head(q, skb);
566 }
567#endif
568
569 /* Process ACL queue */
570 q = __transmit_q(husb, HCI_ACLDATA_PKT);
571 while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX &&
572 (skb = skb_dequeue(q))) {
573 if (hci_usb_send_bulk(husb, skb) < 0) {
574 skb_queue_head(q, skb);
575 break;
576 }
577 }
578 } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state));
579}
580
581static inline void hci_usb_tx_wakeup(struct hci_usb *husb)
582{
583 /* Serialize TX queue processing to avoid data reordering */
584 if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) {
585 hci_usb_tx_process(husb);
586 clear_bit(HCI_USB_TX_PROCESS, &husb->state);
587 } else
588 set_bit(HCI_USB_TX_WAKEUP, &husb->state);
589}
590
591/* Send frames from HCI layer */
592static int hci_usb_send_frame(struct sk_buff *skb)
593{
594 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
595 struct hci_usb *husb;
596
597 if (!hdev) {
598 BT_ERR("frame for uknown device (hdev=NULL)");
599 return -ENODEV;
600 }
601
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
603 return -EBUSY;
604
605 BT_DBG("%s type %d len %d", hdev->name, skb->pkt_type, skb->len);
606
607 husb = (struct hci_usb *) hdev->driver_data;
608
609 switch (skb->pkt_type) {
610 case HCI_COMMAND_PKT:
611 hdev->stat.cmd_tx++;
612 break;
613
614 case HCI_ACLDATA_PKT:
615 hdev->stat.acl_tx++;
616 break;
617
618#ifdef CONFIG_BT_HCIUSB_SCO
619 case HCI_SCODATA_PKT:
620 hdev->stat.sco_tx++;
621 break;
622#endif
623
624 default:
625 kfree_skb(skb);
626 return 0;
627 }
628
629 read_lock(&husb->completion_lock);
630
631 skb_queue_tail(__transmit_q(husb, skb->pkt_type), skb);
632 hci_usb_tx_wakeup(husb);
633
634 read_unlock(&husb->completion_lock);
635 return 0;
636}
637
638static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count)
639{
640 BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count);
641
642 husb->hdev->stat.byte_rx += count;
643
644 while (count) {
645 struct sk_buff *skb = __reassembly(husb, type);
646 struct { int expect; } *scb;
647 int len = 0;
648
649 if (!skb) {
650 /* Start of the frame */
651
652 switch (type) {
653 case HCI_EVENT_PKT:
654 if (count >= HCI_EVENT_HDR_SIZE) {
655 struct hci_event_hdr *h = data;
656 len = HCI_EVENT_HDR_SIZE + h->plen;
657 } else
658 return -EILSEQ;
659 break;
660
661 case HCI_ACLDATA_PKT:
662 if (count >= HCI_ACL_HDR_SIZE) {
663 struct hci_acl_hdr *h = data;
664 len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen);
665 } else
666 return -EILSEQ;
667 break;
668#ifdef CONFIG_BT_HCIUSB_SCO
669 case HCI_SCODATA_PKT:
670 if (count >= HCI_SCO_HDR_SIZE) {
671 struct hci_sco_hdr *h = data;
672 len = HCI_SCO_HDR_SIZE + h->dlen;
673 } else
674 return -EILSEQ;
675 break;
676#endif
677 }
678 BT_DBG("new packet len %d", len);
679
680 skb = bt_skb_alloc(len, GFP_ATOMIC);
681 if (!skb) {
682 BT_ERR("%s no memory for the packet", husb->hdev->name);
683 return -ENOMEM;
684 }
685 skb->dev = (void *) husb->hdev;
686 skb->pkt_type = type;
687
688 __reassembly(husb, type) = skb;
689
690 scb = (void *) skb->cb;
691 scb->expect = len;
692 } else {
693 /* Continuation */
694 scb = (void *) skb->cb;
695 len = scb->expect;
696 }
697
698 len = min(len, count);
699
700 memcpy(skb_put(skb, len), data, len);
701
702 scb->expect -= len;
703 if (!scb->expect) {
704 /* Complete frame */
705 __reassembly(husb, type) = NULL;
706 hci_recv_frame(skb);
707 }
708
709 count -= len; data += len;
710 }
711 return 0;
712}
713
714static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs)
715{
716 struct _urb *_urb = container_of(urb, struct _urb, urb);
717 struct hci_usb *husb = (void *) urb->context;
718 struct hci_dev *hdev = husb->hdev;
719 int err, count = urb->actual_length;
720
721 BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb,
722 _urb->type, urb->status, count, urb->transfer_flags);
723
724 read_lock(&husb->completion_lock);
725
726 if (!test_bit(HCI_RUNNING, &hdev->flags))
727 goto unlock;
728
729 if (urb->status || !count)
730 goto resubmit;
731
732 if (_urb->type == HCI_SCODATA_PKT) {
733#ifdef CONFIG_BT_HCIUSB_SCO
734 int i;
735 for (i=0; i < urb->number_of_packets; i++) {
736 BT_DBG("desc %d status %d offset %d len %d", i,
737 urb->iso_frame_desc[i].status,
738 urb->iso_frame_desc[i].offset,
739 urb->iso_frame_desc[i].actual_length);
740
741 if (!urb->iso_frame_desc[i].status)
742 __recv_frame(husb, _urb->type,
743 urb->transfer_buffer + urb->iso_frame_desc[i].offset,
744 urb->iso_frame_desc[i].actual_length);
745 }
746#else
747 ;
748#endif
749 } else {
750 err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count);
751 if (err < 0) {
752 BT_ERR("%s corrupted packet: type %d count %d",
753 husb->hdev->name, _urb->type, count);
754 hdev->stat.err_rx++;
755 }
756 }
757
758resubmit:
759 urb->dev = husb->udev;
760 err = usb_submit_urb(urb, GFP_ATOMIC);
761 BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb,
762 _urb->type, err);
763
764unlock:
765 read_unlock(&husb->completion_lock);
766}
767
768static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs)
769{
770 struct _urb *_urb = container_of(urb, struct _urb, urb);
771 struct hci_usb *husb = (void *) urb->context;
772 struct hci_dev *hdev = husb->hdev;
773
774 BT_DBG("%s urb %p status %d flags %x", hdev->name, urb,
775 urb->status, urb->transfer_flags);
776
777 atomic_dec(__pending_tx(husb, _urb->type));
778
779 urb->transfer_buffer = NULL;
780 kfree_skb((struct sk_buff *) _urb->priv);
781
782 if (!test_bit(HCI_RUNNING, &hdev->flags))
783 return;
784
785 if (!urb->status)
786 hdev->stat.byte_tx += urb->transfer_buffer_length;
787 else
788 hdev->stat.err_tx++;
789
790 read_lock(&husb->completion_lock);
791
792 _urb_unlink(_urb);
793 _urb_queue_tail(__completed_q(husb, _urb->type), _urb);
794
795 hci_usb_tx_wakeup(husb);
796
797 read_unlock(&husb->completion_lock);
798}
799
800static void hci_usb_destruct(struct hci_dev *hdev)
801{
802 struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
803
804 BT_DBG("%s", hdev->name);
805
806 kfree(husb);
807}
808
809static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt)
810{
811 BT_DBG("%s evt %d", hdev->name, evt);
812}
813
814static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
815{
816 struct usb_device *udev = interface_to_usbdev(intf);
817 struct usb_host_endpoint *bulk_out_ep = NULL;
818 struct usb_host_endpoint *bulk_in_ep = NULL;
819 struct usb_host_endpoint *intr_in_ep = NULL;
820 struct usb_host_endpoint *ep;
821 struct usb_host_interface *uif;
822 struct usb_interface *isoc_iface;
823 struct hci_usb *husb;
824 struct hci_dev *hdev;
825 int i, e, size, isoc_ifnum, isoc_alts;
826
827 BT_DBG("udev %p intf %p", udev, intf);
828
829 if (!id->driver_info) {
830 const struct usb_device_id *match;
831 match = usb_match_id(intf, blacklist_ids);
832 if (match)
833 id = match;
834 }
835
836 if (ignore || id->driver_info & HCI_IGNORE)
837 return -ENODEV;
838
839 if (intf->cur_altsetting->desc.bInterfaceNumber > 0)
840 return -ENODEV;
841
842 /* Find endpoints that we need */
843 uif = intf->cur_altsetting;
844 for (e = 0; e < uif->desc.bNumEndpoints; e++) {
845 ep = &uif->endpoint[e];
846
847 switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
848 case USB_ENDPOINT_XFER_INT:
849 if (ep->desc.bEndpointAddress & USB_DIR_IN)
850 intr_in_ep = ep;
851 break;
852
853 case USB_ENDPOINT_XFER_BULK:
854 if (ep->desc.bEndpointAddress & USB_DIR_IN)
855 bulk_in_ep = ep;
856 else
857 bulk_out_ep = ep;
858 break;
859 }
860 }
861
862 if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) {
863 BT_DBG("Bulk endpoints not found");
864 goto done;
865 }
866
867 if (!(husb = kmalloc(sizeof(struct hci_usb), GFP_KERNEL))) {
868 BT_ERR("Can't allocate: control structure");
869 goto done;
870 }
871
872 memset(husb, 0, sizeof(struct hci_usb));
873
874 husb->udev = udev;
875 husb->bulk_out_ep = bulk_out_ep;
876 husb->bulk_in_ep = bulk_in_ep;
877 husb->intr_in_ep = intr_in_ep;
878
879 if (id->driver_info & HCI_DIGIANSWER)
880 husb->ctrl_req = USB_TYPE_VENDOR;
881 else
882 husb->ctrl_req = USB_TYPE_CLASS;
883
884 /* Find isochronous endpoints that we can use */
885 size = 0;
886 isoc_iface = NULL;
887 isoc_alts = 0;
888 isoc_ifnum = 1;
889
890#ifdef CONFIG_BT_HCIUSB_SCO
891 if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER)))
892 isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum);
893
894 if (isoc_iface) {
895 int a;
896 struct usb_host_endpoint *isoc_out_ep = NULL;
897 struct usb_host_endpoint *isoc_in_ep = NULL;
898
899 for (a = 0; a < isoc_iface->num_altsetting; a++) {
900 uif = &isoc_iface->altsetting[a];
901 for (e = 0; e < uif->desc.bNumEndpoints; e++) {
902 ep = &uif->endpoint[e];
903
904 switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
905 case USB_ENDPOINT_XFER_ISOC:
906 if (le16_to_cpu(ep->desc.wMaxPacketSize) < size ||
907 uif->desc.bAlternateSetting != isoc)
908 break;
909 size = le16_to_cpu(ep->desc.wMaxPacketSize);
910
911 isoc_alts = uif->desc.bAlternateSetting;
912
913 if (ep->desc.bEndpointAddress & USB_DIR_IN)
914 isoc_in_ep = ep;
915 else
916 isoc_out_ep = ep;
917 break;
918 }
919 }
920 }
921
922 if (!isoc_in_ep || !isoc_out_ep)
923 BT_DBG("Isoc endpoints not found");
924 else {
925 BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts);
926 if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0)
927 BT_ERR("Can't claim isoc interface");
928 else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) {
929 BT_ERR("Can't set isoc interface settings");
930 husb->isoc_iface = isoc_iface;
931 usb_driver_release_interface(&hci_usb_driver, isoc_iface);
932 husb->isoc_iface = NULL;
933 } else {
934 husb->isoc_iface = isoc_iface;
935 husb->isoc_in_ep = isoc_in_ep;
936 husb->isoc_out_ep = isoc_out_ep;
937 }
938 }
939 }
940#endif
941
942 rwlock_init(&husb->completion_lock);
943
944 for (i = 0; i < 4; i++) {
945 skb_queue_head_init(&husb->transmit_q[i]);
946 _urb_queue_init(&husb->pending_q[i]);
947 _urb_queue_init(&husb->completed_q[i]);
948 }
949
950 /* Initialize and register HCI device */
951 hdev = hci_alloc_dev();
952 if (!hdev) {
953 BT_ERR("Can't allocate HCI device");
954 goto probe_error;
955 }
956
957 husb->hdev = hdev;
958
959 hdev->type = HCI_USB;
960 hdev->driver_data = husb;
961 SET_HCIDEV_DEV(hdev, &intf->dev);
962
963 hdev->open = hci_usb_open;
964 hdev->close = hci_usb_close;
965 hdev->flush = hci_usb_flush;
966 hdev->send = hci_usb_send_frame;
967 hdev->destruct = hci_usb_destruct;
968 hdev->notify = hci_usb_notify;
969
970 hdev->owner = THIS_MODULE;
971
972 if (reset || id->driver_info & HCI_RESET)
973 set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
974
975 if (id->driver_info & HCI_SNIFFER) {
976 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
977 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
978 }
979
980 if (id->driver_info & HCI_BCM92035) {
981 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
982 struct sk_buff *skb;
983
984 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
985 if (skb) {
986 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
987 skb_queue_tail(&hdev->driver_init, skb);
988 }
989 }
990
991 if (hci_register_dev(hdev) < 0) {
992 BT_ERR("Can't register HCI device");
993 hci_free_dev(hdev);
994 goto probe_error;
995 }
996
997 usb_set_intfdata(intf, husb);
998 return 0;
999
1000probe_error:
1001 if (husb->isoc_iface)
1002 usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface);
1003 kfree(husb);
1004
1005done:
1006 return -EIO;
1007}
1008
1009static void hci_usb_disconnect(struct usb_interface *intf)
1010{
1011 struct hci_usb *husb = usb_get_intfdata(intf);
1012 struct hci_dev *hdev;
1013
1014 if (!husb || intf == husb->isoc_iface)
1015 return;
1016
1017 usb_set_intfdata(intf, NULL);
1018 hdev = husb->hdev;
1019
1020 BT_DBG("%s", hdev->name);
1021
1022 hci_usb_close(hdev);
1023
1024 if (husb->isoc_iface)
1025 usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface);
1026
1027 if (hci_unregister_dev(hdev) < 0)
1028 BT_ERR("Can't unregister HCI device %s", hdev->name);
1029
1030 hci_free_dev(hdev);
1031}
1032
1033static struct usb_driver hci_usb_driver = {
1034 .owner = THIS_MODULE,
1035 .name = "hci_usb",
1036 .probe = hci_usb_probe,
1037 .disconnect = hci_usb_disconnect,
1038 .id_table = bluetooth_ids,
1039};
1040
1041static int __init hci_usb_init(void)
1042{
1043 int err;
1044
1045 BT_INFO("HCI USB driver ver %s", VERSION);
1046
1047 if ((err = usb_register(&hci_usb_driver)) < 0)
1048 BT_ERR("Failed to register HCI USB driver");
1049
1050 return err;
1051}
1052
1053static void __exit hci_usb_exit(void)
1054{
1055 usb_deregister(&hci_usb_driver);
1056}
1057
1058module_init(hci_usb_init);
1059module_exit(hci_usb_exit);
1060
1061module_param(ignore, bool, 0644);
1062MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
1063
1064module_param(reset, bool, 0644);
1065MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1066
1067#ifdef CONFIG_BT_HCIUSB_SCO
1068module_param(isoc, int, 0644);
1069MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support");
1070#endif
1071
1072MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
1073MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION);
1074MODULE_VERSION(VERSION);
1075MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/hci_usb.h b/drivers/bluetooth/hci_usb.h
new file mode 100644
index 000000000000..29936b43d4f8
--- /dev/null
+++ b/drivers/bluetooth/hci_usb.h
@@ -0,0 +1,128 @@
1/*
2 HCI USB driver for Linux Bluetooth protocol stack (BlueZ)
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
5
6 Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24*/
25
26/* Class, SubClass, and Protocol codes that describe a Bluetooth device */
27#define HCI_DEV_CLASS 0xe0 /* Wireless class */
28#define HCI_DEV_SUBCLASS 0x01 /* RF subclass */
29#define HCI_DEV_PROTOCOL 0x01 /* Bluetooth programming protocol */
30
31#define HCI_IGNORE 0x01
32#define HCI_RESET 0x02
33#define HCI_DIGIANSWER 0x04
34#define HCI_SNIFFER 0x08
35#define HCI_BROKEN_ISOC 0x10
36#define HCI_BCM92035 0x20
37
38#define HCI_MAX_IFACE_NUM 3
39
40#define HCI_MAX_BULK_TX 4
41#define HCI_MAX_BULK_RX 1
42
43#define HCI_MAX_ISOC_RX 2
44#define HCI_MAX_ISOC_TX 2
45
46#define HCI_MAX_ISOC_FRAMES 10
47
48struct _urb_queue {
49 struct list_head head;
50 spinlock_t lock;
51};
52
53struct _urb {
54 struct list_head list;
55 struct _urb_queue *queue;
56 int type;
57 void *priv;
58 struct urb urb;
59};
60
61static inline void _urb_free(struct _urb *_urb)
62{
63 kfree(_urb);
64}
65
66static inline void _urb_queue_init(struct _urb_queue *q)
67{
68 INIT_LIST_HEAD(&q->head);
69 spin_lock_init(&q->lock);
70}
71
72static inline void _urb_queue_head(struct _urb_queue *q, struct _urb *_urb)
73{
74 unsigned long flags;
75 spin_lock_irqsave(&q->lock, flags);
76 list_add(&_urb->list, &q->head); _urb->queue = q;
77 spin_unlock_irqrestore(&q->lock, flags);
78}
79
80static inline void _urb_queue_tail(struct _urb_queue *q, struct _urb *_urb)
81{
82 unsigned long flags;
83 spin_lock_irqsave(&q->lock, flags);
84 list_add_tail(&_urb->list, &q->head); _urb->queue = q;
85 spin_unlock_irqrestore(&q->lock, flags);
86}
87
88static inline void _urb_unlink(struct _urb *_urb)
89{
90 struct _urb_queue *q = _urb->queue;
91 unsigned long flags;
92 if (q) {
93 spin_lock_irqsave(&q->lock, flags);
94 list_del(&_urb->list); _urb->queue = NULL;
95 spin_unlock_irqrestore(&q->lock, flags);
96 }
97}
98
99struct hci_usb {
100 struct hci_dev *hdev;
101
102 unsigned long state;
103
104 struct usb_device *udev;
105
106 struct usb_host_endpoint *bulk_in_ep;
107 struct usb_host_endpoint *bulk_out_ep;
108 struct usb_host_endpoint *intr_in_ep;
109
110 struct usb_interface *isoc_iface;
111 struct usb_host_endpoint *isoc_out_ep;
112 struct usb_host_endpoint *isoc_in_ep;
113
114 __u8 ctrl_req;
115
116 struct sk_buff_head transmit_q[4];
117 struct sk_buff *reassembly[4]; /* Reassembly buffers */
118
119 rwlock_t completion_lock;
120
121 atomic_t pending_tx[4]; /* Number of pending requests */
122 struct _urb_queue pending_q[4]; /* Pending requests */
123 struct _urb_queue completed_q[4]; /* Completed requests */
124};
125
126/* States */
127#define HCI_USB_TX_PROCESS 1
128#define HCI_USB_TX_WAKEUP 2
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
new file mode 100644
index 000000000000..3256192dcde8
--- /dev/null
+++ b/drivers/bluetooth/hci_vhci.c
@@ -0,0 +1,364 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * Bluetooth HCI virtual device driver.
27 *
28 * $Id: hci_vhci.c,v 1.3 2002/04/17 17:37:20 maxk Exp $
29 */
30#define VERSION "1.1"
31
32#include <linux/config.h>
33#include <linux/module.h>
34
35#include <linux/errno.h>
36#include <linux/kernel.h>
37#include <linux/major.h>
38#include <linux/sched.h>
39#include <linux/slab.h>
40#include <linux/poll.h>
41#include <linux/fcntl.h>
42#include <linux/init.h>
43#include <linux/random.h>
44
45#include <linux/skbuff.h>
46#include <linux/miscdevice.h>
47
48#include <asm/system.h>
49#include <asm/uaccess.h>
50
51#include <net/bluetooth/bluetooth.h>
52#include <net/bluetooth/hci_core.h>
53#include "hci_vhci.h"
54
55/* HCI device part */
56
57static int hci_vhci_open(struct hci_dev *hdev)
58{
59 set_bit(HCI_RUNNING, &hdev->flags);
60 return 0;
61}
62
63static int hci_vhci_flush(struct hci_dev *hdev)
64{
65 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
66 skb_queue_purge(&hci_vhci->readq);
67 return 0;
68}
69
70static int hci_vhci_close(struct hci_dev *hdev)
71{
72 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
73 return 0;
74
75 hci_vhci_flush(hdev);
76 return 0;
77}
78
79static void hci_vhci_destruct(struct hci_dev *hdev)
80{
81 struct hci_vhci_struct *vhci;
82
83 if (!hdev) return;
84
85 vhci = (struct hci_vhci_struct *) hdev->driver_data;
86 kfree(vhci);
87}
88
89static int hci_vhci_send_frame(struct sk_buff *skb)
90{
91 struct hci_dev* hdev = (struct hci_dev *) skb->dev;
92 struct hci_vhci_struct *hci_vhci;
93
94 if (!hdev) {
95 BT_ERR("Frame for uknown device (hdev=NULL)");
96 return -ENODEV;
97 }
98
99 if (!test_bit(HCI_RUNNING, &hdev->flags))
100 return -EBUSY;
101
102 hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
103
104 memcpy(skb_push(skb, 1), &skb->pkt_type, 1);
105 skb_queue_tail(&hci_vhci->readq, skb);
106
107 if (hci_vhci->flags & VHCI_FASYNC)
108 kill_fasync(&hci_vhci->fasync, SIGIO, POLL_IN);
109 wake_up_interruptible(&hci_vhci->read_wait);
110
111 return 0;
112}
113
114/* Character device part */
115
116/* Poll */
117static unsigned int hci_vhci_chr_poll(struct file *file, poll_table * wait)
118{
119 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
120
121 poll_wait(file, &hci_vhci->read_wait, wait);
122
123 if (skb_queue_len(&hci_vhci->readq))
124 return POLLIN | POLLRDNORM;
125
126 return POLLOUT | POLLWRNORM;
127}
128
129/* Get packet from user space buffer(already verified) */
130static inline ssize_t hci_vhci_get_user(struct hci_vhci_struct *hci_vhci, const char __user *buf, size_t count)
131{
132 struct sk_buff *skb;
133
134 if (count > HCI_MAX_FRAME_SIZE)
135 return -EINVAL;
136
137 if (!(skb = bt_skb_alloc(count, GFP_KERNEL)))
138 return -ENOMEM;
139
140 if (copy_from_user(skb_put(skb, count), buf, count)) {
141 kfree_skb(skb);
142 return -EFAULT;
143 }
144
145 skb->dev = (void *) hci_vhci->hdev;
146 skb->pkt_type = *((__u8 *) skb->data);
147 skb_pull(skb, 1);
148
149 hci_recv_frame(skb);
150
151 return count;
152}
153
154/* Write */
155static ssize_t hci_vhci_chr_write(struct file * file, const char __user * buf,
156 size_t count, loff_t *pos)
157{
158 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
159
160 if (!access_ok(VERIFY_READ, buf, count))
161 return -EFAULT;
162
163 return hci_vhci_get_user(hci_vhci, buf, count);
164}
165
166/* Put packet to user space buffer(already verified) */
167static inline ssize_t hci_vhci_put_user(struct hci_vhci_struct *hci_vhci,
168 struct sk_buff *skb, char __user *buf,
169 int count)
170{
171 int len = count, total = 0;
172 char __user *ptr = buf;
173
174 len = min_t(unsigned int, skb->len, len);
175 if (copy_to_user(ptr, skb->data, len))
176 return -EFAULT;
177 total += len;
178
179 hci_vhci->hdev->stat.byte_tx += len;
180 switch (skb->pkt_type) {
181 case HCI_COMMAND_PKT:
182 hci_vhci->hdev->stat.cmd_tx++;
183 break;
184
185 case HCI_ACLDATA_PKT:
186 hci_vhci->hdev->stat.acl_tx++;
187 break;
188
189 case HCI_SCODATA_PKT:
190 hci_vhci->hdev->stat.cmd_tx++;
191 break;
192 };
193
194 return total;
195}
196
197/* Read */
198static ssize_t hci_vhci_chr_read(struct file * file, char __user * buf, size_t count, loff_t *pos)
199{
200 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
201 DECLARE_WAITQUEUE(wait, current);
202 struct sk_buff *skb;
203 ssize_t ret = 0;
204
205 add_wait_queue(&hci_vhci->read_wait, &wait);
206 while (count) {
207 set_current_state(TASK_INTERRUPTIBLE);
208
209 /* Read frames from device queue */
210 if (!(skb = skb_dequeue(&hci_vhci->readq))) {
211 if (file->f_flags & O_NONBLOCK) {
212 ret = -EAGAIN;
213 break;
214 }
215 if (signal_pending(current)) {
216 ret = -ERESTARTSYS;
217 break;
218 }
219
220 /* Nothing to read, let's sleep */
221 schedule();
222 continue;
223 }
224
225 if (access_ok(VERIFY_WRITE, buf, count))
226 ret = hci_vhci_put_user(hci_vhci, skb, buf, count);
227 else
228 ret = -EFAULT;
229
230 kfree_skb(skb);
231 break;
232 }
233 set_current_state(TASK_RUNNING);
234 remove_wait_queue(&hci_vhci->read_wait, &wait);
235
236 return ret;
237}
238
239static loff_t hci_vhci_chr_lseek(struct file * file, loff_t offset, int origin)
240{
241 return -ESPIPE;
242}
243
244static int hci_vhci_chr_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
245{
246 return -EINVAL;
247}
248
249static int hci_vhci_chr_fasync(int fd, struct file *file, int on)
250{
251 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
252 int ret;
253
254 if ((ret = fasync_helper(fd, file, on, &hci_vhci->fasync)) < 0)
255 return ret;
256
257 if (on)
258 hci_vhci->flags |= VHCI_FASYNC;
259 else
260 hci_vhci->flags &= ~VHCI_FASYNC;
261
262 return 0;
263}
264
265static int hci_vhci_chr_open(struct inode *inode, struct file * file)
266{
267 struct hci_vhci_struct *hci_vhci = NULL;
268 struct hci_dev *hdev;
269
270 if (!(hci_vhci = kmalloc(sizeof(struct hci_vhci_struct), GFP_KERNEL)))
271 return -ENOMEM;
272
273 memset(hci_vhci, 0, sizeof(struct hci_vhci_struct));
274
275 skb_queue_head_init(&hci_vhci->readq);
276 init_waitqueue_head(&hci_vhci->read_wait);
277
278 /* Initialize and register HCI device */
279 hdev = hci_alloc_dev();
280 if (!hdev) {
281 kfree(hci_vhci);
282 return -ENOMEM;
283 }
284
285 hci_vhci->hdev = hdev;
286
287 hdev->type = HCI_VHCI;
288 hdev->driver_data = hci_vhci;
289
290 hdev->open = hci_vhci_open;
291 hdev->close = hci_vhci_close;
292 hdev->flush = hci_vhci_flush;
293 hdev->send = hci_vhci_send_frame;
294 hdev->destruct = hci_vhci_destruct;
295
296 hdev->owner = THIS_MODULE;
297
298 if (hci_register_dev(hdev) < 0) {
299 kfree(hci_vhci);
300 hci_free_dev(hdev);
301 return -EBUSY;
302 }
303
304 file->private_data = hci_vhci;
305 return nonseekable_open(inode, file);
306}
307
308static int hci_vhci_chr_close(struct inode *inode, struct file *file)
309{
310 struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
311 struct hci_dev *hdev = hci_vhci->hdev;
312
313 if (hci_unregister_dev(hdev) < 0) {
314 BT_ERR("Can't unregister HCI device %s", hdev->name);
315 }
316
317 hci_free_dev(hdev);
318
319 file->private_data = NULL;
320 return 0;
321}
322
323static struct file_operations hci_vhci_fops = {
324 .owner = THIS_MODULE,
325 .llseek = hci_vhci_chr_lseek,
326 .read = hci_vhci_chr_read,
327 .write = hci_vhci_chr_write,
328 .poll = hci_vhci_chr_poll,
329 .ioctl = hci_vhci_chr_ioctl,
330 .open = hci_vhci_chr_open,
331 .release = hci_vhci_chr_close,
332 .fasync = hci_vhci_chr_fasync
333};
334
335static struct miscdevice hci_vhci_miscdev=
336{
337 VHCI_MINOR,
338 "hci_vhci",
339 &hci_vhci_fops
340};
341
342static int __init hci_vhci_init(void)
343{
344 BT_INFO("VHCI driver ver %s", VERSION);
345
346 if (misc_register(&hci_vhci_miscdev)) {
347 BT_ERR("Can't register misc device %d\n", VHCI_MINOR);
348 return -EIO;
349 }
350
351 return 0;
352}
353
354static void hci_vhci_cleanup(void)
355{
356 misc_deregister(&hci_vhci_miscdev);
357}
358
359module_init(hci_vhci_init);
360module_exit(hci_vhci_cleanup);
361
362MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
363MODULE_DESCRIPTION("Bluetooth VHCI driver ver " VERSION);
364MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/hci_vhci.h b/drivers/bluetooth/hci_vhci.h
new file mode 100644
index 000000000000..53b11f9ef76d
--- /dev/null
+++ b/drivers/bluetooth/hci_vhci.h
@@ -0,0 +1,50 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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 version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/*
26 * $Id: hci_vhci.h,v 1.1.1.1 2002/03/08 21:03:15 maxk Exp $
27 */
28
29#ifndef __HCI_VHCI_H
30#define __HCI_VHCI_H
31
32#ifdef __KERNEL__
33
34struct hci_vhci_struct {
35 struct hci_dev *hdev;
36 __u32 flags;
37 wait_queue_head_t read_wait;
38 struct sk_buff_head readq;
39 struct fasync_struct *fasync;
40};
41
42/* VHCI device flags */
43#define VHCI_FASYNC 0x0010
44
45#endif /* __KERNEL__ */
46
47#define VHCI_DEV "/dev/vhci"
48#define VHCI_MINOR 250
49
50#endif /* __HCI_VHCI_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-04-27 19:05:54 -0400