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-rw-r--r--drivers/usb/net/Kconfig13
-rw-r--r--drivers/usb/net/Makefile1
-rw-r--r--drivers/usb/net/asix.c948
-rw-r--r--drivers/usb/net/usbnet.c936
-rw-r--r--drivers/usb/net/usbnet.h8
5 files changed, 1010 insertions, 896 deletions
diff --git a/drivers/usb/net/Kconfig b/drivers/usb/net/Kconfig
index 6399b43d41a5..4fb51b998cc8 100644
--- a/drivers/usb/net/Kconfig
+++ b/drivers/usb/net/Kconfig
@@ -202,23 +202,22 @@ config USB_CDCETHER
202 IEEE 802 "local assignment" bit is set in the address, a "usbX" 202 IEEE 802 "local assignment" bit is set in the address, a "usbX"
203 name is used instead. 203 name is used instead.
204 204
205comment "USB Network Adapters" 205comment "Drivers built using the usbnet core"
206 depends on USB_USBNET
207 206
208config USB_AX8817X 207config USB_NET_AX8817X
209 boolean "ASIX AX88xxx Based USB 2.0 Ethernet Devices" 208 tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
210 depends on USB_USBNET && NET_ETHERNET 209 depends on USB_USBNET && NET_ETHERNET
211 select CRC32 210 select CRC32
212 select MII 211 select MII
213 default y 212 default y
214 help 213 help
215 This option adds support for ASIX AX88xxx based USB 2.0 214 This option adds support for ASIX AX88xxx based USB 2.0
216 10/100 Ethernet devices. 215 10/100 Ethernet adapters.
217 216
218 This driver should work with at least the following devices: 217 This driver should work with at least the following devices:
219 * Aten UC210T 218 * Aten UC210T
220 * ASIX AX88172 219 * ASIX AX88172
221 * Billionton Systems, USB2AR 220 * Billionton Systems, USB2AR
222 * Buffalo LUA-U2-KTX 221 * Buffalo LUA-U2-KTX
223 * Corega FEther USB2-TX 222 * Corega FEther USB2-TX
224 * D-Link DUB-E100 223 * D-Link DUB-E100
@@ -231,7 +230,7 @@ config USB_AX8817X
231 * TrendNet TU2-ET100 230 * TrendNet TU2-ET100
232 231
233 This driver creates an interface named "ethX", where X depends on 232 This driver creates an interface named "ethX", where X depends on
234 what other networking devices you have in use. 233 what other networking devices you have in use.
235 234
236 235
237config USB_NET_CDC_SUBSET 236config USB_NET_CDC_SUBSET
diff --git a/drivers/usb/net/Makefile b/drivers/usb/net/Makefile
index 23608ccc6380..60dc91e5cdbf 100644
--- a/drivers/usb/net/Makefile
+++ b/drivers/usb/net/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o
6obj-$(CONFIG_USB_KAWETH) += kaweth.o 6obj-$(CONFIG_USB_KAWETH) += kaweth.o
7obj-$(CONFIG_USB_PEGASUS) += pegasus.o 7obj-$(CONFIG_USB_PEGASUS) += pegasus.o
8obj-$(CONFIG_USB_RTL8150) += rtl8150.o 8obj-$(CONFIG_USB_RTL8150) += rtl8150.o
9obj-$(CONFIG_USB_NET_AX8817X) += asix.o
9obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o 10obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o
10obj-$(CONFIG_USB_USBNET) += usbnet.o 11obj-$(CONFIG_USB_USBNET) += usbnet.o
11obj-$(CONFIG_USB_ZD1201) += zd1201.o 12obj-$(CONFIG_USB_ZD1201) += zd1201.o
diff --git a/drivers/usb/net/asix.c b/drivers/usb/net/asix.c
new file mode 100644
index 000000000000..861f00a43750
--- /dev/null
+++ b/drivers/usb/net/asix.c
@@ -0,0 +1,948 @@
1/*
2 * ASIX AX8817X based USB 2.0 Ethernet Devices
3 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
4 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
5 * Copyright (c) 2002-2003 TiVo Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22// #define DEBUG // error path messages, extra info
23// #define VERBOSE // more; success messages
24
25#include <linux/config.h>
26#ifdef CONFIG_USB_DEBUG
27# define DEBUG
28#endif
29#include <linux/module.h>
30#include <linux/kmod.h>
31#include <linux/sched.h>
32#include <linux/init.h>
33#include <linux/netdevice.h>
34#include <linux/etherdevice.h>
35#include <linux/ethtool.h>
36#include <linux/workqueue.h>
37#include <linux/mii.h>
38#include <linux/usb.h>
39#include <linux/crc32.h>
40
41#include "usbnet.h"
42
43
44/* ASIX AX8817X based USB 2.0 Ethernet Devices */
45
46#define AX_CMD_SET_SW_MII 0x06
47#define AX_CMD_READ_MII_REG 0x07
48#define AX_CMD_WRITE_MII_REG 0x08
49#define AX_CMD_SET_HW_MII 0x0a
50#define AX_CMD_READ_EEPROM 0x0b
51#define AX_CMD_WRITE_EEPROM 0x0c
52#define AX_CMD_WRITE_ENABLE 0x0d
53#define AX_CMD_WRITE_DISABLE 0x0e
54#define AX_CMD_WRITE_RX_CTL 0x10
55#define AX_CMD_READ_IPG012 0x11
56#define AX_CMD_WRITE_IPG0 0x12
57#define AX_CMD_WRITE_IPG1 0x13
58#define AX_CMD_WRITE_IPG2 0x14
59#define AX_CMD_WRITE_MULTI_FILTER 0x16
60#define AX_CMD_READ_NODE_ID 0x17
61#define AX_CMD_READ_PHY_ID 0x19
62#define AX_CMD_READ_MEDIUM_STATUS 0x1a
63#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
64#define AX_CMD_READ_MONITOR_MODE 0x1c
65#define AX_CMD_WRITE_MONITOR_MODE 0x1d
66#define AX_CMD_WRITE_GPIOS 0x1f
67#define AX_CMD_SW_RESET 0x20
68#define AX_CMD_SW_PHY_STATUS 0x21
69#define AX_CMD_SW_PHY_SELECT 0x22
70#define AX88772_CMD_READ_NODE_ID 0x13
71
72#define AX_MONITOR_MODE 0x01
73#define AX_MONITOR_LINK 0x02
74#define AX_MONITOR_MAGIC 0x04
75#define AX_MONITOR_HSFS 0x10
76
77/* AX88172 Medium Status Register values */
78#define AX_MEDIUM_FULL_DUPLEX 0x02
79#define AX_MEDIUM_TX_ABORT_ALLOW 0x04
80#define AX_MEDIUM_FLOW_CONTROL_EN 0x10
81
82#define AX_MCAST_FILTER_SIZE 8
83#define AX_MAX_MCAST 64
84
85#define AX_EEPROM_LEN 0x40
86
87#define AX_SWRESET_CLEAR 0x00
88#define AX_SWRESET_RR 0x01
89#define AX_SWRESET_RT 0x02
90#define AX_SWRESET_PRTE 0x04
91#define AX_SWRESET_PRL 0x08
92#define AX_SWRESET_BZ 0x10
93#define AX_SWRESET_IPRL 0x20
94#define AX_SWRESET_IPPD 0x40
95
96#define AX88772_IPG0_DEFAULT 0x15
97#define AX88772_IPG1_DEFAULT 0x0c
98#define AX88772_IPG2_DEFAULT 0x12
99
100#define AX88772_MEDIUM_FULL_DUPLEX 0x0002
101#define AX88772_MEDIUM_RESERVED 0x0004
102#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010
103#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020
104#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080
105#define AX88772_MEDIUM_RX_ENABLE 0x0100
106#define AX88772_MEDIUM_100MB 0x0200
107#define AX88772_MEDIUM_DEFAULT \
108 (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \
109 AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \
110 AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE )
111
112#define AX_EEPROM_MAGIC 0xdeadbeef
113
114/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
115struct ax8817x_data {
116 u8 multi_filter[AX_MCAST_FILTER_SIZE];
117};
118
119struct ax88172_int_data {
120 u16 res1;
121 u8 link;
122 u16 res2;
123 u8 status;
124 u16 res3;
125} __attribute__ ((packed));
126
127static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
128 u16 size, void *data)
129{
130 return usb_control_msg(
131 dev->udev,
132 usb_rcvctrlpipe(dev->udev, 0),
133 cmd,
134 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
135 value,
136 index,
137 data,
138 size,
139 USB_CTRL_GET_TIMEOUT);
140}
141
142static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
143 u16 size, void *data)
144{
145 return usb_control_msg(
146 dev->udev,
147 usb_sndctrlpipe(dev->udev, 0),
148 cmd,
149 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
150 value,
151 index,
152 data,
153 size,
154 USB_CTRL_SET_TIMEOUT);
155}
156
157static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
158{
159 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
160
161 if (urb->status < 0)
162 printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d",
163 urb->status);
164
165 kfree(req);
166 usb_free_urb(urb);
167}
168
169static void ax8817x_status(struct usbnet *dev, struct urb *urb)
170{
171 struct ax88172_int_data *event;
172 int link;
173
174 if (urb->actual_length < 8)
175 return;
176
177 event = urb->transfer_buffer;
178 link = event->link & 0x01;
179 if (netif_carrier_ok(dev->net) != link) {
180 if (link) {
181 netif_carrier_on(dev->net);
182 usbnet_defer_kevent (dev, EVENT_LINK_RESET );
183 } else
184 netif_carrier_off(dev->net);
185 devdbg(dev, "ax8817x - Link Status is: %d", link);
186 }
187}
188
189static void
190ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
191 u16 size, void *data)
192{
193 struct usb_ctrlrequest *req;
194 int status;
195 struct urb *urb;
196
197 if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
198 devdbg(dev, "Error allocating URB in write_cmd_async!");
199 return;
200 }
201
202 if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
203 deverr(dev, "Failed to allocate memory for control request");
204 usb_free_urb(urb);
205 return;
206 }
207
208 req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
209 req->bRequest = cmd;
210 req->wValue = cpu_to_le16(value);
211 req->wIndex = cpu_to_le16(index);
212 req->wLength = cpu_to_le16(size);
213
214 usb_fill_control_urb(urb, dev->udev,
215 usb_sndctrlpipe(dev->udev, 0),
216 (void *)req, data, size,
217 ax8817x_async_cmd_callback, req);
218
219 if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
220 deverr(dev, "Error submitting the control message: status=%d",
221 status);
222 kfree(req);
223 usb_free_urb(urb);
224 }
225}
226
227static void ax8817x_set_multicast(struct net_device *net)
228{
229 struct usbnet *dev = netdev_priv(net);
230 struct ax8817x_data *data = (struct ax8817x_data *)&dev->data;
231 u8 rx_ctl = 0x8c;
232
233 if (net->flags & IFF_PROMISC) {
234 rx_ctl |= 0x01;
235 } else if (net->flags & IFF_ALLMULTI
236 || net->mc_count > AX_MAX_MCAST) {
237 rx_ctl |= 0x02;
238 } else if (net->mc_count == 0) {
239 /* just broadcast and directed */
240 } else {
241 /* We use the 20 byte dev->data
242 * for our 8 byte filter buffer
243 * to avoid allocating memory that
244 * is tricky to free later */
245 struct dev_mc_list *mc_list = net->mc_list;
246 u32 crc_bits;
247 int i;
248
249 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
250
251 /* Build the multicast hash filter. */
252 for (i = 0; i < net->mc_count; i++) {
253 crc_bits =
254 ether_crc(ETH_ALEN,
255 mc_list->dmi_addr) >> 26;
256 data->multi_filter[crc_bits >> 3] |=
257 1 << (crc_bits & 7);
258 mc_list = mc_list->next;
259 }
260
261 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
262 AX_MCAST_FILTER_SIZE, data->multi_filter);
263
264 rx_ctl |= 0x10;
265 }
266
267 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
268}
269
270static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc)
271{
272 struct usbnet *dev = netdev_priv(netdev);
273 u16 res;
274 u8 buf[1];
275
276 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
277 ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
278 (__u16)loc, 2, (u16 *)&res);
279 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
280
281 return res & 0xffff;
282}
283
284/* same as above, but converts resulting value to cpu byte order */
285static int ax8817x_mdio_read_le(struct net_device *netdev, int phy_id, int loc)
286{
287 return le16_to_cpu(ax8817x_mdio_read(netdev,phy_id, loc));
288}
289
290static void
291ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
292{
293 struct usbnet *dev = netdev_priv(netdev);
294 u16 res = val;
295 u8 buf[1];
296
297 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
298 ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id,
299 (__u16)loc, 2, (u16 *)&res);
300 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
301}
302
303/* same as above, but converts new value to le16 byte order before writing */
304static void
305ax8817x_mdio_write_le(struct net_device *netdev, int phy_id, int loc, int val)
306{
307 ax8817x_mdio_write( netdev, phy_id, loc, cpu_to_le16(val) );
308}
309
310static int ax88172_link_reset(struct usbnet *dev)
311{
312 u16 lpa;
313 u16 adv;
314 u16 res;
315 u8 mode;
316
317 mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN;
318 lpa = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA);
319 adv = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE);
320 res = mii_nway_result(lpa|adv);
321 if (res & LPA_DUPLEX)
322 mode |= AX_MEDIUM_FULL_DUPLEX;
323 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
324
325 return 0;
326}
327
328static void
329ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
330{
331 struct usbnet *dev = netdev_priv(net);
332 u8 opt;
333
334 if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
335 wolinfo->supported = 0;
336 wolinfo->wolopts = 0;
337 return;
338 }
339 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
340 wolinfo->wolopts = 0;
341 if (opt & AX_MONITOR_MODE) {
342 if (opt & AX_MONITOR_LINK)
343 wolinfo->wolopts |= WAKE_PHY;
344 if (opt & AX_MONITOR_MAGIC)
345 wolinfo->wolopts |= WAKE_MAGIC;
346 }
347}
348
349static int
350ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
351{
352 struct usbnet *dev = netdev_priv(net);
353 u8 opt = 0;
354 u8 buf[1];
355
356 if (wolinfo->wolopts & WAKE_PHY)
357 opt |= AX_MONITOR_LINK;
358 if (wolinfo->wolopts & WAKE_MAGIC)
359 opt |= AX_MONITOR_MAGIC;
360 if (opt != 0)
361 opt |= AX_MONITOR_MODE;
362
363 if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
364 opt, 0, 0, &buf) < 0)
365 return -EINVAL;
366
367 return 0;
368}
369
370static int ax8817x_get_eeprom_len(struct net_device *net)
371{
372 return AX_EEPROM_LEN;
373}
374
375static int ax8817x_get_eeprom(struct net_device *net,
376 struct ethtool_eeprom *eeprom, u8 *data)
377{
378 struct usbnet *dev = netdev_priv(net);
379 u16 *ebuf = (u16 *)data;
380 int i;
381
382 /* Crude hack to ensure that we don't overwrite memory
383 * if an odd length is supplied
384 */
385 if (eeprom->len % 2)
386 return -EINVAL;
387
388 eeprom->magic = AX_EEPROM_MAGIC;
389
390 /* ax8817x returns 2 bytes from eeprom on read */
391 for (i=0; i < eeprom->len / 2; i++) {
392 if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM,
393 eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
394 return -EINVAL;
395 }
396 return 0;
397}
398
399static void ax8817x_get_drvinfo (struct net_device *net,
400 struct ethtool_drvinfo *info)
401{
402 /* Inherit standard device info */
403 usbnet_get_drvinfo(net, info);
404 info->eedump_len = 0x3e;
405}
406
407static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
408{
409 struct usbnet *dev = netdev_priv(net);
410
411 return mii_ethtool_gset(&dev->mii,cmd);
412}
413
414static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
415{
416 struct usbnet *dev = netdev_priv(net);
417
418 return mii_ethtool_sset(&dev->mii,cmd);
419}
420
421/* We need to override some ethtool_ops so we require our
422 own structure so we don't interfere with other usbnet
423 devices that may be connected at the same time. */
424static struct ethtool_ops ax8817x_ethtool_ops = {
425 .get_drvinfo = ax8817x_get_drvinfo,
426 .get_link = ethtool_op_get_link,
427 .get_msglevel = usbnet_get_msglevel,
428 .set_msglevel = usbnet_set_msglevel,
429 .get_wol = ax8817x_get_wol,
430 .set_wol = ax8817x_set_wol,
431 .get_eeprom_len = ax8817x_get_eeprom_len,
432 .get_eeprom = ax8817x_get_eeprom,
433 .get_settings = ax8817x_get_settings,
434 .set_settings = ax8817x_set_settings,
435};
436
437static int ax8817x_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
438{
439 struct usbnet *dev = netdev_priv(net);
440
441 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
442}
443
444static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
445{
446 int ret = 0;
447 void *buf;
448 int i;
449 unsigned long gpio_bits = dev->driver_info->data;
450
451 usbnet_get_endpoints(dev,intf);
452
453 buf = kmalloc(ETH_ALEN, GFP_KERNEL);
454 if(!buf) {
455 ret = -ENOMEM;
456 goto out1;
457 }
458
459 /* Toggle the GPIOs in a manufacturer/model specific way */
460 for (i = 2; i >= 0; i--) {
461 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
462 (gpio_bits >> (i * 8)) & 0xff, 0, 0,
463 buf)) < 0)
464 goto out2;
465 msleep(5);
466 }
467
468 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL,
469 0x80, 0, 0, buf)) < 0) {
470 dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret);
471 goto out2;
472 }
473
474 /* Get the MAC address */
475 memset(buf, 0, ETH_ALEN);
476 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID,
477 0, 0, 6, buf)) < 0) {
478 dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
479 goto out2;
480 }
481 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
482
483 /* Get the PHY id */
484 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID,
485 0, 0, 2, buf)) < 0) {
486 dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret);
487 goto out2;
488 } else if (ret < 2) {
489 /* this should always return 2 bytes */
490 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
491 ret);
492 ret = -EIO;
493 goto out2;
494 }
495
496 /* Initialize MII structure */
497 dev->mii.dev = dev->net;
498 dev->mii.mdio_read = ax8817x_mdio_read;
499 dev->mii.mdio_write = ax8817x_mdio_write;
500 dev->mii.phy_id_mask = 0x3f;
501 dev->mii.reg_num_mask = 0x1f;
502 dev->mii.phy_id = *((u8 *)buf + 1);
503 dev->net->do_ioctl = ax8817x_ioctl;
504
505 dev->net->set_multicast_list = ax8817x_set_multicast;
506 dev->net->ethtool_ops = &ax8817x_ethtool_ops;
507
508 ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
509 ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE,
510 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
511 mii_nway_restart(&dev->mii);
512
513 return 0;
514out2:
515 kfree(buf);
516out1:
517 return ret;
518}
519
520static struct ethtool_ops ax88772_ethtool_ops = {
521 .get_drvinfo = ax8817x_get_drvinfo,
522 .get_link = ethtool_op_get_link,
523 .get_msglevel = usbnet_get_msglevel,
524 .set_msglevel = usbnet_set_msglevel,
525 .get_wol = ax8817x_get_wol,
526 .set_wol = ax8817x_set_wol,
527 .get_eeprom_len = ax8817x_get_eeprom_len,
528 .get_eeprom = ax8817x_get_eeprom,
529 .get_settings = ax8817x_get_settings,
530 .set_settings = ax8817x_set_settings,
531};
532
533static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
534{
535 int ret;
536 void *buf;
537
538 usbnet_get_endpoints(dev,intf);
539
540 buf = kmalloc(6, GFP_KERNEL);
541 if(!buf) {
542 dbg ("Cannot allocate memory for buffer");
543 ret = -ENOMEM;
544 goto out1;
545 }
546
547 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
548 0x00B0, 0, 0, buf)) < 0)
549 goto out2;
550
551 msleep(5);
552 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
553 0x0001, 0, 0, buf)) < 0) {
554 dbg("Select PHY #1 failed: %d", ret);
555 goto out2;
556 }
557
558 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD,
559 0, 0, buf)) < 0) {
560 dbg("Failed to power down internal PHY: %d", ret);
561 goto out2;
562 }
563
564 msleep(150);
565 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR,
566 0, 0, buf)) < 0) {
567 dbg("Failed to perform software reset: %d", ret);
568 goto out2;
569 }
570
571 msleep(150);
572 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET,
573 AX_SWRESET_IPRL | AX_SWRESET_PRL,
574 0, 0, buf)) < 0) {
575 dbg("Failed to set Internal/External PHY reset control: %d",
576 ret);
577 goto out2;
578 }
579
580 msleep(150);
581 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL,
582 0x0000, 0, 0, buf)) < 0) {
583 dbg("Failed to reset RX_CTL: %d", ret);
584 goto out2;
585 }
586
587 /* Get the MAC address */
588 memset(buf, 0, ETH_ALEN);
589 if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID,
590 0, 0, ETH_ALEN, buf)) < 0) {
591 dbg("Failed to read MAC address: %d", ret);
592 goto out2;
593 }
594 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
595
596 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII,
597 0, 0, 0, buf)) < 0) {
598 dbg("Enabling software MII failed: %d", ret);
599 goto out2;
600 }
601
602 if (((ret = ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG,
603 0x0010, 2, 2, buf)) < 0)
604 || (*((u16 *)buf) != 0x003b)) {
605 dbg("Read PHY register 2 must be 0x3b00: %d", ret);
606 goto out2;
607 }
608
609 /* Initialize MII structure */
610 dev->mii.dev = dev->net;
611 dev->mii.mdio_read = ax8817x_mdio_read;
612 dev->mii.mdio_write = ax8817x_mdio_write;
613 dev->mii.phy_id_mask = 0xff;
614 dev->mii.reg_num_mask = 0xff;
615 dev->net->do_ioctl = ax8817x_ioctl;
616
617 /* Get the PHY id */
618 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID,
619 0, 0, 2, buf)) < 0) {
620 dbg("Error reading PHY ID: %02x", ret);
621 goto out2;
622 } else if (ret < 2) {
623 /* this should always return 2 bytes */
624 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
625 ret);
626 ret = -EIO;
627 goto out2;
628 }
629 dev->mii.phy_id = *((u8 *)buf + 1);
630
631 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL,
632 0, 0, buf)) < 0) {
633 dbg("Set external PHY reset pin level: %d", ret);
634 goto out2;
635 }
636 msleep(150);
637 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET,
638 AX_SWRESET_IPRL | AX_SWRESET_PRL,
639 0, 0, buf)) < 0) {
640 dbg("Set Internal/External PHY reset control: %d", ret);
641 goto out2;
642 }
643 msleep(150);
644
645
646 dev->net->set_multicast_list = ax8817x_set_multicast;
647 dev->net->ethtool_ops = &ax88772_ethtool_ops;
648
649 ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
650 ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE,
651 ADVERTISE_ALL | ADVERTISE_CSMA);
652 mii_nway_restart(&dev->mii);
653
654 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE,
655 AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) {
656 dbg("Write medium mode register: %d", ret);
657 goto out2;
658 }
659
660 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0,
661 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
662 AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
663 dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
664 goto out2;
665 }
666 if ((ret =
667 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) {
668 dbg("Failed to set hardware MII: %02x", ret);
669 goto out2;
670 }
671
672 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
673 if ((ret =
674 ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0,
675 buf)) < 0) {
676 dbg("Reset RX_CTL failed: %d", ret);
677 goto out2;
678 }
679
680 kfree(buf);
681
682 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
683 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
684 /* hard_mtu is still the default - the device does not support
685 jumbo eth frames */
686 dev->rx_urb_size = 2048;
687 }
688
689 return 0;
690
691out2:
692 kfree(buf);
693out1:
694 return ret;
695}
696
697static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
698{
699 u8 *head;
700 u32 header;
701 char *packet;
702 struct sk_buff *ax_skb;
703 u16 size;
704
705 head = (u8 *) skb->data;
706 memcpy(&header, head, sizeof(header));
707 le32_to_cpus(&header);
708 packet = head + sizeof(header);
709
710 skb_pull(skb, 4);
711
712 while (skb->len > 0) {
713 if ((short)(header & 0x0000ffff) !=
714 ~((short)((header & 0xffff0000) >> 16))) {
715 devdbg(dev,"header length data is error");
716 }
717 /* get the packet length */
718 size = (u16) (header & 0x0000ffff);
719
720 if ((skb->len) - ((size + 1) & 0xfffe) == 0)
721 return 2;
722 if (size > ETH_FRAME_LEN) {
723 devdbg(dev,"invalid rx length %d", size);
724 return 0;
725 }
726 ax_skb = skb_clone(skb, GFP_ATOMIC);
727 if (ax_skb) {
728 ax_skb->len = size;
729 ax_skb->data = packet;
730 ax_skb->tail = packet + size;
731 usbnet_skb_return(dev, ax_skb);
732 } else {
733 return 0;
734 }
735
736 skb_pull(skb, (size + 1) & 0xfffe);
737
738 if (skb->len == 0)
739 break;
740
741 head = (u8 *) skb->data;
742 memcpy(&header, head, sizeof(header));
743 le32_to_cpus(&header);
744 packet = head + sizeof(header);
745 skb_pull(skb, 4);
746 }
747
748 if (skb->len < 0) {
749 devdbg(dev,"invalid rx length %d", skb->len);
750 return 0;
751 }
752 return 1;
753}
754
755static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
756 unsigned flags)
757{
758 int padlen;
759 int headroom = skb_headroom(skb);
760 int tailroom = skb_tailroom(skb);
761 u32 packet_len;
762 u32 padbytes = 0xffff0000;
763
764 padlen = ((skb->len + 4) % 512) ? 0 : 4;
765
766 if ((!skb_cloned(skb))
767 && ((headroom + tailroom) >= (4 + padlen))) {
768 if ((headroom < 4) || (tailroom < padlen)) {
769 skb->data = memmove(skb->head + 4, skb->data, skb->len);
770 skb->tail = skb->data + skb->len;
771 }
772 } else {
773 struct sk_buff *skb2;
774 skb2 = skb_copy_expand(skb, 4, padlen, flags);
775 dev_kfree_skb_any(skb);
776 skb = skb2;
777 if (!skb)
778 return NULL;
779 }
780
781 skb_push(skb, 4);
782 packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
783 memcpy(skb->data, &packet_len, sizeof(packet_len));
784
785 if ((skb->len % 512) == 0) {
786 memcpy( skb->tail, &padbytes, sizeof(padbytes));
787 skb_put(skb, sizeof(padbytes));
788 }
789 return skb;
790}
791
792static int ax88772_link_reset(struct usbnet *dev)
793{
794 u16 lpa;
795 u16 adv;
796 u16 res;
797 u16 mode;
798
799 mode = AX88772_MEDIUM_DEFAULT;
800 lpa = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA);
801 adv = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE);
802 res = mii_nway_result(lpa|adv);
803
804 if ((res & LPA_DUPLEX) == 0)
805 mode &= ~AX88772_MEDIUM_FULL_DUPLEX;
806 if ((res & LPA_100) == 0)
807 mode &= ~AX88772_MEDIUM_100MB;
808 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
809
810 return 0;
811}
812
813static const struct driver_info ax8817x_info = {
814 .description = "ASIX AX8817x USB 2.0 Ethernet",
815 .bind = ax8817x_bind,
816 .status = ax8817x_status,
817 .link_reset = ax88172_link_reset,
818 .reset = ax88172_link_reset,
819 .flags = FLAG_ETHER,
820 .data = 0x00130103,
821};
822
823static const struct driver_info dlink_dub_e100_info = {
824 .description = "DLink DUB-E100 USB Ethernet",
825 .bind = ax8817x_bind,
826 .status = ax8817x_status,
827 .link_reset = ax88172_link_reset,
828 .reset = ax88172_link_reset,
829 .flags = FLAG_ETHER,
830 .data = 0x009f9d9f,
831};
832
833static const struct driver_info netgear_fa120_info = {
834 .description = "Netgear FA-120 USB Ethernet",
835 .bind = ax8817x_bind,
836 .status = ax8817x_status,
837 .link_reset = ax88172_link_reset,
838 .reset = ax88172_link_reset,
839 .flags = FLAG_ETHER,
840 .data = 0x00130103,
841};
842
843static const struct driver_info hawking_uf200_info = {
844 .description = "Hawking UF200 USB Ethernet",
845 .bind = ax8817x_bind,
846 .status = ax8817x_status,
847 .link_reset = ax88172_link_reset,
848 .reset = ax88172_link_reset,
849 .flags = FLAG_ETHER,
850 .data = 0x001f1d1f,
851};
852
853static const struct driver_info ax88772_info = {
854 .description = "ASIX AX88772 USB 2.0 Ethernet",
855 .bind = ax88772_bind,
856 .status = ax8817x_status,
857 .link_reset = ax88772_link_reset,
858 .reset = ax88772_link_reset,
859 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
860 .rx_fixup = ax88772_rx_fixup,
861 .tx_fixup = ax88772_tx_fixup,
862 .data = 0x00130103,
863};
864
865static const struct usb_device_id products [] = {
866{
867 // Linksys USB200M
868 USB_DEVICE (0x077b, 0x2226),
869 .driver_info = (unsigned long) &ax8817x_info,
870}, {
871 // Netgear FA120
872 USB_DEVICE (0x0846, 0x1040),
873 .driver_info = (unsigned long) &netgear_fa120_info,
874}, {
875 // DLink DUB-E100
876 USB_DEVICE (0x2001, 0x1a00),
877 .driver_info = (unsigned long) &dlink_dub_e100_info,
878}, {
879 // Intellinet, ST Lab USB Ethernet
880 USB_DEVICE (0x0b95, 0x1720),
881 .driver_info = (unsigned long) &ax8817x_info,
882}, {
883 // Hawking UF200, TrendNet TU2-ET100
884 USB_DEVICE (0x07b8, 0x420a),
885 .driver_info = (unsigned long) &hawking_uf200_info,
886}, {
887 // Billionton Systems, USB2AR
888 USB_DEVICE (0x08dd, 0x90ff),
889 .driver_info = (unsigned long) &ax8817x_info,
890}, {
891 // ATEN UC210T
892 USB_DEVICE (0x0557, 0x2009),
893 .driver_info = (unsigned long) &ax8817x_info,
894}, {
895 // Buffalo LUA-U2-KTX
896 USB_DEVICE (0x0411, 0x003d),
897 .driver_info = (unsigned long) &ax8817x_info,
898}, {
899 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
900 USB_DEVICE (0x6189, 0x182d),
901 .driver_info = (unsigned long) &ax8817x_info,
902}, {
903 // corega FEther USB2-TX
904 USB_DEVICE (0x07aa, 0x0017),
905 .driver_info = (unsigned long) &ax8817x_info,
906}, {
907 // Surecom EP-1427X-2
908 USB_DEVICE (0x1189, 0x0893),
909 .driver_info = (unsigned long) &ax8817x_info,
910}, {
911 // goodway corp usb gwusb2e
912 USB_DEVICE (0x1631, 0x6200),
913 .driver_info = (unsigned long) &ax8817x_info,
914}, {
915 // ASIX AX88772 10/100
916 USB_DEVICE (0x0b95, 0x7720),
917 .driver_info = (unsigned long) &ax88772_info,
918},
919 { }, // END
920};
921MODULE_DEVICE_TABLE(usb, products);
922
923static struct usb_driver asix_driver = {
924 .owner = THIS_MODULE,
925 .name = "asix",
926 .id_table = products,
927 .probe = usbnet_probe,
928 .suspend = usbnet_suspend,
929 .resume = usbnet_resume,
930 .disconnect = usbnet_disconnect,
931};
932
933static int __init asix_init(void)
934{
935 return usb_register(&asix_driver);
936}
937module_init(asix_init);
938
939static void __exit asix_exit(void)
940{
941 usb_deregister(&asix_driver);
942}
943module_exit(asix_exit);
944
945MODULE_AUTHOR("David Hollis");
946MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
947MODULE_LICENSE("GPL");
948
diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c
index 57b41fbd3bb8..99a488140140 100644
--- a/drivers/usb/net/usbnet.c
+++ b/drivers/usb/net/usbnet.c
@@ -3,8 +3,6 @@
3 * Copyright (C) 2000-2005 by David Brownell 3 * Copyright (C) 2000-2005 by David Brownell
4 * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> 4 * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> 5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
6 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
7 * Copyright (c) 2002-2003 TiVo Inc.
8 * 6 *
9 * This program is free software; you can redistribute it and/or modify 7 * 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 8 * it under the terms of the GNU General Public License as published by
@@ -156,9 +154,6 @@
156#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) 154#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
157#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) 155#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
158 156
159/* packets are always ethernet, sometimes wrapped in other framing */
160#define MIN_PACKET sizeof(struct ethhdr)
161
162// reawaken network queue this soon after stopping; else watchdog barks 157// reawaken network queue this soon after stopping; else watchdog barks
163#define TX_TIMEOUT_JIFFIES (5*HZ) 158#define TX_TIMEOUT_JIFFIES (5*HZ)
164 159
@@ -186,11 +181,7 @@ MODULE_PARM_DESC (msg_level, "Override default message level");
186 181
187/*-------------------------------------------------------------------------*/ 182/*-------------------------------------------------------------------------*/
188 183
189static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
190static u32 usbnet_get_link (struct net_device *); 184static u32 usbnet_get_link (struct net_device *);
191static u32 usbnet_get_msglevel (struct net_device *);
192static void usbnet_set_msglevel (struct net_device *, u32);
193static void defer_kevent (struct usbnet *, int);
194 185
195/* mostly for PDA style devices, which are always connected if present */ 186/* mostly for PDA style devices, which are always connected if present */
196static int always_connected (struct usbnet *dev) 187static int always_connected (struct usbnet *dev)
@@ -199,8 +190,7 @@ static int always_connected (struct usbnet *dev)
199} 190}
200 191
201/* handles CDC Ethernet and many other network "bulk data" interfaces */ 192/* handles CDC Ethernet and many other network "bulk data" interfaces */
202static int 193int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
203get_endpoints (struct usbnet *dev, struct usb_interface *intf)
204{ 194{
205 int tmp; 195 int tmp;
206 struct usb_host_interface *alt = NULL; 196 struct usb_host_interface *alt = NULL;
@@ -264,6 +254,7 @@ get_endpoints (struct usbnet *dev, struct usb_interface *intf)
264 dev->status = status; 254 dev->status = status;
265 return 0; 255 return 0;
266} 256}
257EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
267 258
268static void intr_complete (struct urb *urb, struct pt_regs *regs); 259static void intr_complete (struct urb *urb, struct pt_regs *regs);
269 260
@@ -303,7 +294,11 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf)
303 return 0; 294 return 0;
304} 295}
305 296
306static void skb_return (struct usbnet *dev, struct sk_buff *skb) 297/* Passes this packet up the stack, updating its accounting.
298 * Some link protocols batch packets, so their rx_fixup paths
299 * can return clones as well as just modify the original skb.
300 */
301void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
307{ 302{
308 int status; 303 int status;
309 304
@@ -320,784 +315,7 @@ static void skb_return (struct usbnet *dev, struct sk_buff *skb)
320 if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev)) 315 if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
321 devdbg (dev, "netif_rx status %d", status); 316 devdbg (dev, "netif_rx status %d", status);
322} 317}
323 318EXPORT_SYMBOL_GPL(usbnet_skb_return);
324
325#ifdef CONFIG_USB_AX8817X
326/* ASIX AX8817X based USB 2.0 Ethernet Devices */
327
328#define HAVE_HARDWARE
329#define NEED_MII
330
331#include <linux/crc32.h>
332
333#define AX_CMD_SET_SW_MII 0x06
334#define AX_CMD_READ_MII_REG 0x07
335#define AX_CMD_WRITE_MII_REG 0x08
336#define AX_CMD_SET_HW_MII 0x0a
337#define AX_CMD_READ_EEPROM 0x0b
338#define AX_CMD_WRITE_EEPROM 0x0c
339#define AX_CMD_WRITE_ENABLE 0x0d
340#define AX_CMD_WRITE_DISABLE 0x0e
341#define AX_CMD_WRITE_RX_CTL 0x10
342#define AX_CMD_READ_IPG012 0x11
343#define AX_CMD_WRITE_IPG0 0x12
344#define AX_CMD_WRITE_IPG1 0x13
345#define AX_CMD_WRITE_IPG2 0x14
346#define AX_CMD_WRITE_MULTI_FILTER 0x16
347#define AX_CMD_READ_NODE_ID 0x17
348#define AX_CMD_READ_PHY_ID 0x19
349#define AX_CMD_READ_MEDIUM_STATUS 0x1a
350#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
351#define AX_CMD_READ_MONITOR_MODE 0x1c
352#define AX_CMD_WRITE_MONITOR_MODE 0x1d
353#define AX_CMD_WRITE_GPIOS 0x1f
354#define AX_CMD_SW_RESET 0x20
355#define AX_CMD_SW_PHY_STATUS 0x21
356#define AX_CMD_SW_PHY_SELECT 0x22
357#define AX88772_CMD_READ_NODE_ID 0x13
358
359#define AX_MONITOR_MODE 0x01
360#define AX_MONITOR_LINK 0x02
361#define AX_MONITOR_MAGIC 0x04
362#define AX_MONITOR_HSFS 0x10
363
364/* AX88172 Medium Status Register values */
365#define AX_MEDIUM_FULL_DUPLEX 0x02
366#define AX_MEDIUM_TX_ABORT_ALLOW 0x04
367#define AX_MEDIUM_FLOW_CONTROL_EN 0x10
368
369#define AX_MCAST_FILTER_SIZE 8
370#define AX_MAX_MCAST 64
371
372#define AX_EEPROM_LEN 0x40
373
374#define AX_SWRESET_CLEAR 0x00
375#define AX_SWRESET_RR 0x01
376#define AX_SWRESET_RT 0x02
377#define AX_SWRESET_PRTE 0x04
378#define AX_SWRESET_PRL 0x08
379#define AX_SWRESET_BZ 0x10
380#define AX_SWRESET_IPRL 0x20
381#define AX_SWRESET_IPPD 0x40
382
383#define AX88772_IPG0_DEFAULT 0x15
384#define AX88772_IPG1_DEFAULT 0x0c
385#define AX88772_IPG2_DEFAULT 0x12
386
387#define AX88772_MEDIUM_FULL_DUPLEX 0x0002
388#define AX88772_MEDIUM_RESERVED 0x0004
389#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010
390#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020
391#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080
392#define AX88772_MEDIUM_RX_ENABLE 0x0100
393#define AX88772_MEDIUM_100MB 0x0200
394#define AX88772_MEDIUM_DEFAULT \
395 (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \
396 AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \
397 AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE )
398
399#define AX_EEPROM_MAGIC 0xdeadbeef
400
401/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
402struct ax8817x_data {
403 u8 multi_filter[AX_MCAST_FILTER_SIZE];
404};
405
406struct ax88172_int_data {
407 u16 res1;
408 u8 link;
409 u16 res2;
410 u8 status;
411 u16 res3;
412} __attribute__ ((packed));
413
414static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
415 u16 size, void *data)
416{
417 return usb_control_msg(
418 dev->udev,
419 usb_rcvctrlpipe(dev->udev, 0),
420 cmd,
421 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
422 value,
423 index,
424 data,
425 size,
426 CONTROL_TIMEOUT_MS);
427}
428
429static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
430 u16 size, void *data)
431{
432 return usb_control_msg(
433 dev->udev,
434 usb_sndctrlpipe(dev->udev, 0),
435 cmd,
436 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
437 value,
438 index,
439 data,
440 size,
441 CONTROL_TIMEOUT_MS);
442}
443
444static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
445{
446 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
447
448 if (urb->status < 0)
449 printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d",
450 urb->status);
451
452 kfree(req);
453 usb_free_urb(urb);
454}
455
456static void ax8817x_status(struct usbnet *dev, struct urb *urb)
457{
458 struct ax88172_int_data *event;
459 int link;
460
461 if (urb->actual_length < 8)
462 return;
463
464 event = urb->transfer_buffer;
465 link = event->link & 0x01;
466 if (netif_carrier_ok(dev->net) != link) {
467 if (link) {
468 netif_carrier_on(dev->net);
469 defer_kevent (dev, EVENT_LINK_RESET );
470 } else
471 netif_carrier_off(dev->net);
472 devdbg(dev, "ax8817x - Link Status is: %d", link);
473 }
474}
475
476static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
477 u16 size, void *data)
478{
479 struct usb_ctrlrequest *req;
480 int status;
481 struct urb *urb;
482
483 if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
484 devdbg(dev, "Error allocating URB in write_cmd_async!");
485 return;
486 }
487
488 if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
489 deverr(dev, "Failed to allocate memory for control request");
490 usb_free_urb(urb);
491 return;
492 }
493
494 req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
495 req->bRequest = cmd;
496 req->wValue = cpu_to_le16(value);
497 req->wIndex = cpu_to_le16(index);
498 req->wLength = cpu_to_le16(size);
499
500 usb_fill_control_urb(urb, dev->udev,
501 usb_sndctrlpipe(dev->udev, 0),
502 (void *)req, data, size,
503 ax8817x_async_cmd_callback, req);
504
505 if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
506 deverr(dev, "Error submitting the control message: status=%d", status);
507 kfree(req);
508 usb_free_urb(urb);
509 }
510}
511
512static void ax8817x_set_multicast(struct net_device *net)
513{
514 struct usbnet *dev = netdev_priv(net);
515 struct ax8817x_data *data = (struct ax8817x_data *)&dev->data;
516 u8 rx_ctl = 0x8c;
517
518 if (net->flags & IFF_PROMISC) {
519 rx_ctl |= 0x01;
520 } else if (net->flags & IFF_ALLMULTI
521 || net->mc_count > AX_MAX_MCAST) {
522 rx_ctl |= 0x02;
523 } else if (net->mc_count == 0) {
524 /* just broadcast and directed */
525 } else {
526 /* We use the 20 byte dev->data
527 * for our 8 byte filter buffer
528 * to avoid allocating memory that
529 * is tricky to free later */
530 struct dev_mc_list *mc_list = net->mc_list;
531 u32 crc_bits;
532 int i;
533
534 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
535
536 /* Build the multicast hash filter. */
537 for (i = 0; i < net->mc_count; i++) {
538 crc_bits =
539 ether_crc(ETH_ALEN,
540 mc_list->dmi_addr) >> 26;
541 data->multi_filter[crc_bits >> 3] |=
542 1 << (crc_bits & 7);
543 mc_list = mc_list->next;
544 }
545
546 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
547 AX_MCAST_FILTER_SIZE, data->multi_filter);
548
549 rx_ctl |= 0x10;
550 }
551
552 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
553}
554
555static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc)
556{
557 struct usbnet *dev = netdev_priv(netdev);
558 u16 res;
559 u8 buf[1];
560
561 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
562 ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
563 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
564
565 return res & 0xffff;
566}
567
568static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
569{
570 struct usbnet *dev = netdev_priv(netdev);
571 u16 res = val;
572 u8 buf[1];
573
574 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
575 ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
576 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
577}
578
579static int ax88172_link_reset(struct usbnet *dev)
580{
581 u16 lpa;
582 u8 mode;
583
584 mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN;
585 lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
586 if (lpa & LPA_DUPLEX)
587 mode |= AX_MEDIUM_FULL_DUPLEX;
588 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
589
590 return 0;
591}
592
593static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
594{
595 struct usbnet *dev = netdev_priv(net);
596 u8 opt;
597
598 if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
599 wolinfo->supported = 0;
600 wolinfo->wolopts = 0;
601 return;
602 }
603 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
604 wolinfo->wolopts = 0;
605 if (opt & AX_MONITOR_MODE) {
606 if (opt & AX_MONITOR_LINK)
607 wolinfo->wolopts |= WAKE_PHY;
608 if (opt & AX_MONITOR_MAGIC)
609 wolinfo->wolopts |= WAKE_MAGIC;
610 }
611}
612
613static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
614{
615 struct usbnet *dev = netdev_priv(net);
616 u8 opt = 0;
617 u8 buf[1];
618
619 if (wolinfo->wolopts & WAKE_PHY)
620 opt |= AX_MONITOR_LINK;
621 if (wolinfo->wolopts & WAKE_MAGIC)
622 opt |= AX_MONITOR_MAGIC;
623 if (opt != 0)
624 opt |= AX_MONITOR_MODE;
625
626 if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
627 opt, 0, 0, &buf) < 0)
628 return -EINVAL;
629
630 return 0;
631}
632
633static int ax8817x_get_eeprom_len(struct net_device *net)
634{
635 return AX_EEPROM_LEN;
636}
637
638static int ax8817x_get_eeprom(struct net_device *net,
639 struct ethtool_eeprom *eeprom, u8 *data)
640{
641 struct usbnet *dev = netdev_priv(net);
642 u16 *ebuf = (u16 *)data;
643 int i;
644
645 /* Crude hack to ensure that we don't overwrite memory
646 * if an odd length is supplied
647 */
648 if (eeprom->len % 2)
649 return -EINVAL;
650
651 eeprom->magic = AX_EEPROM_MAGIC;
652
653 /* ax8817x returns 2 bytes from eeprom on read */
654 for (i=0; i < eeprom->len / 2; i++) {
655 if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM,
656 eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
657 return -EINVAL;
658 }
659 return 0;
660}
661
662static void ax8817x_get_drvinfo (struct net_device *net,
663 struct ethtool_drvinfo *info)
664{
665 /* Inherit standard device info */
666 usbnet_get_drvinfo(net, info);
667 info->eedump_len = 0x3e;
668}
669
670static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
671{
672 struct usbnet *dev = netdev_priv(net);
673
674 return mii_ethtool_gset(&dev->mii,cmd);
675}
676
677static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
678{
679 struct usbnet *dev = netdev_priv(net);
680
681 return mii_ethtool_sset(&dev->mii,cmd);
682}
683
684/* We need to override some ethtool_ops so we require our
685 own structure so we don't interfere with other usbnet
686 devices that may be connected at the same time. */
687static struct ethtool_ops ax8817x_ethtool_ops = {
688 .get_drvinfo = ax8817x_get_drvinfo,
689 .get_link = ethtool_op_get_link,
690 .get_msglevel = usbnet_get_msglevel,
691 .set_msglevel = usbnet_set_msglevel,
692 .get_wol = ax8817x_get_wol,
693 .set_wol = ax8817x_set_wol,
694 .get_eeprom_len = ax8817x_get_eeprom_len,
695 .get_eeprom = ax8817x_get_eeprom,
696 .get_settings = ax8817x_get_settings,
697 .set_settings = ax8817x_set_settings,
698};
699
700static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
701{
702 int ret = 0;
703 void *buf;
704 int i;
705 unsigned long gpio_bits = dev->driver_info->data;
706
707 get_endpoints(dev,intf);
708
709 buf = kmalloc(ETH_ALEN, GFP_KERNEL);
710 if(!buf) {
711 ret = -ENOMEM;
712 goto out1;
713 }
714
715 /* Toggle the GPIOs in a manufacturer/model specific way */
716 for (i = 2; i >= 0; i--) {
717 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
718 (gpio_bits >> (i * 8)) & 0xff, 0, 0,
719 buf)) < 0)
720 goto out2;
721 msleep(5);
722 }
723
724 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) {
725 dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret);
726 goto out2;
727 }
728
729 /* Get the MAC address */
730 memset(buf, 0, ETH_ALEN);
731 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) {
732 dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
733 goto out2;
734 }
735 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
736
737 /* Get the PHY id */
738 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
739 dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret);
740 goto out2;
741 } else if (ret < 2) {
742 /* this should always return 2 bytes */
743 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret);
744 ret = -EIO;
745 goto out2;
746 }
747
748 /* Initialize MII structure */
749 dev->mii.dev = dev->net;
750 dev->mii.mdio_read = ax8817x_mdio_read;
751 dev->mii.mdio_write = ax8817x_mdio_write;
752 dev->mii.phy_id_mask = 0x3f;
753 dev->mii.reg_num_mask = 0x1f;
754 dev->mii.phy_id = *((u8 *)buf + 1);
755
756 dev->net->set_multicast_list = ax8817x_set_multicast;
757 dev->net->ethtool_ops = &ax8817x_ethtool_ops;
758
759 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
760 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
761 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
762 mii_nway_restart(&dev->mii);
763
764 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
765 /* REVISIT: adjust hard_header_len too */
766 dev->hard_mtu = 2048;
767 }
768
769 return 0;
770out2:
771 kfree(buf);
772out1:
773 return ret;
774}
775
776static struct ethtool_ops ax88772_ethtool_ops = {
777 .get_drvinfo = ax8817x_get_drvinfo,
778 .get_link = ethtool_op_get_link,
779 .get_msglevel = usbnet_get_msglevel,
780 .set_msglevel = usbnet_set_msglevel,
781 .get_wol = ax8817x_get_wol,
782 .set_wol = ax8817x_set_wol,
783 .get_eeprom_len = ax8817x_get_eeprom_len,
784 .get_eeprom = ax8817x_get_eeprom,
785 .get_settings = ax8817x_get_settings,
786 .set_settings = ax8817x_set_settings,
787};
788
789static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
790{
791 int ret;
792 void *buf;
793
794 get_endpoints(dev,intf);
795
796 buf = kmalloc(6, GFP_KERNEL);
797 if(!buf) {
798 dbg ("Cannot allocate memory for buffer");
799 ret = -ENOMEM;
800 goto out1;
801 }
802
803 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
804 0x00B0, 0, 0, buf)) < 0)
805 goto out2;
806
807 msleep(5);
808 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) {
809 dbg("Select PHY #1 failed: %d", ret);
810 goto out2;
811 }
812
813 if ((ret =
814 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) {
815 dbg("Failed to power down internal PHY: %d", ret);
816 goto out2;
817 }
818
819 msleep(150);
820 if ((ret =
821 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) {
822 dbg("Failed to perform software reset: %d", ret);
823 goto out2;
824 }
825
826 msleep(150);
827 if ((ret =
828 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
829 dbg("Failed to set Internal/External PHY reset control: %d", ret);
830 goto out2;
831 }
832
833 msleep(150);
834 if ((ret =
835 ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0,
836 buf)) < 0) {
837 dbg("Failed to reset RX_CTL: %d", ret);
838 goto out2;
839 }
840
841 /* Get the MAC address */
842 memset(buf, 0, ETH_ALEN);
843 if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) {
844 dbg("Failed to read MAC address: %d", ret);
845 goto out2;
846 }
847 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
848
849 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) {
850 dbg("Enabling software MII failed: %d", ret);
851 goto out2;
852 }
853
854 if (((ret =
855 ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0)
856 || (*((u16 *)buf) != 0x003b)) {
857 dbg("Read PHY register 2 must be 0x3b00: %d", ret);
858 goto out2;
859 }
860
861 /* Initialize MII structure */
862 dev->mii.dev = dev->net;
863 dev->mii.mdio_read = ax8817x_mdio_read;
864 dev->mii.mdio_write = ax8817x_mdio_write;
865 dev->mii.phy_id_mask = 0xff;
866 dev->mii.reg_num_mask = 0xff;
867
868 /* Get the PHY id */
869 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
870 dbg("Error reading PHY ID: %02x", ret);
871 goto out2;
872 } else if (ret < 2) {
873 /* this should always return 2 bytes */
874 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
875 ret);
876 ret = -EIO;
877 goto out2;
878 }
879 dev->mii.phy_id = *((u8 *)buf + 1);
880
881 if ((ret =
882 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) {
883 dbg("Set external PHY reset pin level: %d", ret);
884 goto out2;
885 }
886 msleep(150);
887 if ((ret =
888 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
889 dbg("Set Internal/External PHY reset control: %d", ret);
890 goto out2;
891 }
892 msleep(150);
893
894
895 dev->net->set_multicast_list = ax8817x_set_multicast;
896 dev->net->ethtool_ops = &ax88772_ethtool_ops;
897
898 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
899 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
900 ADVERTISE_ALL | ADVERTISE_CSMA);
901 mii_nway_restart(&dev->mii);
902
903 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) {
904 dbg("Write medium mode register: %d", ret);
905 goto out2;
906 }
907
908 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
909 dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
910 goto out2;
911 }
912 if ((ret =
913 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) {
914 dbg("Failed to set hardware MII: %02x", ret);
915 goto out2;
916 }
917
918 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
919 if ((ret =
920 ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0,
921 buf)) < 0) {
922 dbg("Reset RX_CTL failed: %d", ret);
923 goto out2;
924 }
925
926 kfree(buf);
927
928 return 0;
929
930out2:
931 kfree(buf);
932out1:
933 return ret;
934}
935
936static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
937{
938 u32 *header;
939 char *packet;
940 struct sk_buff *ax_skb;
941 u16 size;
942
943 header = (u32 *) skb->data;
944 le32_to_cpus(header);
945 packet = (char *)(header + 1);
946
947 skb_pull(skb, 4);
948
949 while (skb->len > 0) {
950 if ((short)(*header & 0x0000ffff) !=
951 ~((short)((*header & 0xffff0000) >> 16))) {
952 devdbg(dev,"header length data is error");
953 }
954 /* get the packet length */
955 size = (u16) (*header & 0x0000ffff);
956
957 if ((skb->len) - ((size + 1) & 0xfffe) == 0)
958 return 2;
959 if (size > ETH_FRAME_LEN) {
960 devdbg(dev,"invalid rx length %d", size);
961 return 0;
962 }
963 ax_skb = skb_clone(skb, GFP_ATOMIC);
964 if (ax_skb) {
965 ax_skb->len = size;
966 ax_skb->data = packet;
967 ax_skb->tail = packet + size;
968 skb_return(dev, ax_skb);
969 } else {
970 return 0;
971 }
972
973 skb_pull(skb, (size + 1) & 0xfffe);
974
975 if (skb->len == 0)
976 break;
977
978 header = (u32 *) skb->data;
979 le32_to_cpus(header);
980 packet = (char *)(header + 1);
981 skb_pull(skb, 4);
982 }
983
984 if (skb->len < 0) {
985 devdbg(dev,"invalid rx length %d", skb->len);
986 return 0;
987 }
988 return 1;
989}
990
991static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
992 unsigned flags)
993{
994 int padlen;
995 int headroom = skb_headroom(skb);
996 int tailroom = skb_tailroom(skb);
997 u32 *packet_len;
998 u32 *padbytes_ptr;
999
1000 padlen = ((skb->len + 4) % 512) ? 0 : 4;
1001
1002 if ((!skb_cloned(skb))
1003 && ((headroom + tailroom) >= (4 + padlen))) {
1004 if ((headroom < 4) || (tailroom < padlen)) {
1005 skb->data = memmove(skb->head + 4, skb->data, skb->len);
1006 skb->tail = skb->data + skb->len;
1007 }
1008 } else {
1009 struct sk_buff *skb2;
1010 skb2 = skb_copy_expand(skb, 4, padlen, flags);
1011 dev_kfree_skb_any(skb);
1012 skb = skb2;
1013 if (!skb)
1014 return NULL;
1015 }
1016
1017 packet_len = (u32 *) skb_push(skb, 4);
1018
1019 packet_len = (u32 *) skb->data;
1020 *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
1021
1022 if ((skb->len % 512) == 0) {
1023 padbytes_ptr = (u32 *) skb->tail;
1024 *padbytes_ptr = 0xffff0000;
1025 skb_put(skb, padlen);
1026 }
1027 return skb;
1028}
1029
1030static int ax88772_link_reset(struct usbnet *dev)
1031{
1032 u16 lpa;
1033 u16 mode;
1034
1035 mode = AX88772_MEDIUM_DEFAULT;
1036 lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
1037
1038 if ((lpa & LPA_DUPLEX) == 0)
1039 mode &= ~AX88772_MEDIUM_FULL_DUPLEX;
1040 if ((lpa & LPA_100) == 0)
1041 mode &= ~AX88772_MEDIUM_100MB;
1042 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
1043
1044 return 0;
1045}
1046
1047static const struct driver_info ax8817x_info = {
1048 .description = "ASIX AX8817x USB 2.0 Ethernet",
1049 .bind = ax8817x_bind,
1050 .status = ax8817x_status,
1051 .link_reset = ax88172_link_reset,
1052 .reset = ax88172_link_reset,
1053 .flags = FLAG_ETHER,
1054 .data = 0x00130103,
1055};
1056
1057static const struct driver_info dlink_dub_e100_info = {
1058 .description = "DLink DUB-E100 USB Ethernet",
1059 .bind = ax8817x_bind,
1060 .status = ax8817x_status,
1061 .link_reset = ax88172_link_reset,
1062 .reset = ax88172_link_reset,
1063 .flags = FLAG_ETHER,
1064 .data = 0x009f9d9f,
1065};
1066
1067static const struct driver_info netgear_fa120_info = {
1068 .description = "Netgear FA-120 USB Ethernet",
1069 .bind = ax8817x_bind,
1070 .status = ax8817x_status,
1071 .link_reset = ax88172_link_reset,
1072 .reset = ax88172_link_reset,
1073 .flags = FLAG_ETHER,
1074 .data = 0x00130103,
1075};
1076
1077static const struct driver_info hawking_uf200_info = {
1078 .description = "Hawking UF200 USB Ethernet",
1079 .bind = ax8817x_bind,
1080 .status = ax8817x_status,
1081 .link_reset = ax88172_link_reset,
1082 .reset = ax88172_link_reset,
1083 .flags = FLAG_ETHER,
1084 .data = 0x001f1d1f,
1085};
1086
1087static const struct driver_info ax88772_info = {
1088 .description = "ASIX AX88772 USB 2.0 Ethernet",
1089 .bind = ax88772_bind,
1090 .status = ax8817x_status,
1091 .link_reset = ax88772_link_reset,
1092 .reset = ax88772_link_reset,
1093 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1094 .rx_fixup = ax88772_rx_fixup,
1095 .tx_fixup = ax88772_tx_fixup,
1096 .data = 0x00130103,
1097};
1098
1099#endif /* CONFIG_USB_AX8817X */
1100
1101 319
1102 320
1103/*------------------------------------------------------------------------- 321/*-------------------------------------------------------------------------
@@ -1284,7 +502,7 @@ next_desc:
1284 status = usb_driver_claim_interface (&usbnet_driver, info->data, dev); 502 status = usb_driver_claim_interface (&usbnet_driver, info->data, dev);
1285 if (status < 0) 503 if (status < 0)
1286 return status; 504 return status;
1287 status = get_endpoints (dev, info->data); 505 status = usbnet_get_endpoints (dev, info->data);
1288 if (status < 0) { 506 if (status < 0) {
1289 /* ensure immediate exit from usbnet_disconnect */ 507 /* ensure immediate exit from usbnet_disconnect */
1290 usb_set_intfdata(info->data, NULL); 508 usb_set_intfdata(info->data, NULL);
@@ -1721,7 +939,7 @@ static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb)
1721 939
1722 // copy the packet data to the new skb 940 // copy the packet data to the new skb
1723 memcpy(skb_put(gl_skb, size), packet->packet_data, size); 941 memcpy(skb_put(gl_skb, size), packet->packet_data, size);
1724 skb_return (dev, gl_skb); 942 usbnet_skb_return (dev, gl_skb);
1725 } 943 }
1726 944
1727 // advance to the next packet 945 // advance to the next packet
@@ -2616,7 +1834,7 @@ next_desc:
2616 * bother to make it unique. Likewise there's no point in tracking 1834 * bother to make it unique. Likewise there's no point in tracking
2617 * of the CDC event notifications. 1835 * of the CDC event notifications.
2618 */ 1836 */
2619 return get_endpoints (dev, intf); 1837 return usbnet_get_endpoints (dev, intf);
2620 1838
2621bad_desc: 1839bad_desc:
2622 dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n"); 1840 dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n");
@@ -2694,7 +1912,7 @@ static void defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_hea
2694 * NOTE: annoying asymmetry: if it's active, schedule_work() fails, 1912 * NOTE: annoying asymmetry: if it's active, schedule_work() fails,
2695 * but tasklet_schedule() doesn't. hope the failure is rare. 1913 * but tasklet_schedule() doesn't. hope the failure is rare.
2696 */ 1914 */
2697static void defer_kevent (struct usbnet *dev, int work) 1915void usbnet_defer_kevent (struct usbnet *dev, int work)
2698{ 1916{
2699 set_bit (work, &dev->flags); 1917 set_bit (work, &dev->flags);
2700 if (!schedule_work (&dev->kevent)) 1918 if (!schedule_work (&dev->kevent))
@@ -2702,6 +1920,7 @@ static void defer_kevent (struct usbnet *dev, int work)
2702 else 1920 else
2703 devdbg (dev, "kevent %d scheduled", work); 1921 devdbg (dev, "kevent %d scheduled", work);
2704} 1922}
1923EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
2705 1924
2706/*-------------------------------------------------------------------------*/ 1925/*-------------------------------------------------------------------------*/
2707 1926
@@ -2713,14 +1932,12 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags)
2713 struct skb_data *entry; 1932 struct skb_data *entry;
2714 int retval = 0; 1933 int retval = 0;
2715 unsigned long lockflags; 1934 unsigned long lockflags;
2716 size_t size; 1935 size_t size = dev->rx_urb_size;
2717 1936
2718 size = max(dev->net->hard_header_len + dev->net->mtu,
2719 (unsigned)ETH_FRAME_LEN);
2720 if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) { 1937 if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
2721 if (netif_msg_rx_err (dev)) 1938 if (netif_msg_rx_err (dev))
2722 devdbg (dev, "no rx skb"); 1939 devdbg (dev, "no rx skb");
2723 defer_kevent (dev, EVENT_RX_MEMORY); 1940 usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
2724 usb_free_urb (urb); 1941 usb_free_urb (urb);
2725 return; 1942 return;
2726 } 1943 }
@@ -2742,10 +1959,10 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags)
2742 && !test_bit (EVENT_RX_HALT, &dev->flags)) { 1959 && !test_bit (EVENT_RX_HALT, &dev->flags)) {
2743 switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){ 1960 switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){
2744 case -EPIPE: 1961 case -EPIPE:
2745 defer_kevent (dev, EVENT_RX_HALT); 1962 usbnet_defer_kevent (dev, EVENT_RX_HALT);
2746 break; 1963 break;
2747 case -ENOMEM: 1964 case -ENOMEM:
2748 defer_kevent (dev, EVENT_RX_MEMORY); 1965 usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
2749 break; 1966 break;
2750 case -ENODEV: 1967 case -ENODEV:
2751 if (netif_msg_ifdown (dev)) 1968 if (netif_msg_ifdown (dev))
@@ -2783,7 +2000,7 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
2783 // else network stack removes extra byte if we forced a short packet 2000 // else network stack removes extra byte if we forced a short packet
2784 2001
2785 if (skb->len) 2002 if (skb->len)
2786 skb_return (dev, skb); 2003 usbnet_skb_return (dev, skb);
2787 else { 2004 else {
2788 if (netif_msg_rx_err (dev)) 2005 if (netif_msg_rx_err (dev))
2789 devdbg (dev, "drop"); 2006 devdbg (dev, "drop");
@@ -2824,7 +2041,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs)
2824 // storm, recovering as needed. 2041 // storm, recovering as needed.
2825 case -EPIPE: 2042 case -EPIPE:
2826 dev->stats.rx_errors++; 2043 dev->stats.rx_errors++;
2827 defer_kevent (dev, EVENT_RX_HALT); 2044 usbnet_defer_kevent (dev, EVENT_RX_HALT);
2828 // FALLTHROUGH 2045 // FALLTHROUGH
2829 2046
2830 // software-driven interface shutdown 2047 // software-driven interface shutdown
@@ -3066,16 +2283,22 @@ done:
3066 2283
3067/*-------------------------------------------------------------------------*/ 2284/*-------------------------------------------------------------------------*/
3068 2285
3069static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) 2286/* ethtool methods; minidrivers may need to add some more, but
2287 * they'll probably want to use this base set.
2288 */
2289
2290void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
3070{ 2291{
3071 struct usbnet *dev = netdev_priv(net); 2292 struct usbnet *dev = netdev_priv(net);
3072 2293
2294 /* REVISIT don't always return "usbnet" */
3073 strncpy (info->driver, driver_name, sizeof info->driver); 2295 strncpy (info->driver, driver_name, sizeof info->driver);
3074 strncpy (info->version, DRIVER_VERSION, sizeof info->version); 2296 strncpy (info->version, DRIVER_VERSION, sizeof info->version);
3075 strncpy (info->fw_version, dev->driver_info->description, 2297 strncpy (info->fw_version, dev->driver_info->description,
3076 sizeof info->fw_version); 2298 sizeof info->fw_version);
3077 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); 2299 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
3078} 2300}
2301EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
3079 2302
3080static u32 usbnet_get_link (struct net_device *net) 2303static u32 usbnet_get_link (struct net_device *net)
3081{ 2304{
@@ -3089,32 +2312,29 @@ static u32 usbnet_get_link (struct net_device *net)
3089 return 1; 2312 return 1;
3090} 2313}
3091 2314
3092static u32 usbnet_get_msglevel (struct net_device *net) 2315u32 usbnet_get_msglevel (struct net_device *net)
3093{ 2316{
3094 struct usbnet *dev = netdev_priv(net); 2317 struct usbnet *dev = netdev_priv(net);
3095 2318
3096 return dev->msg_enable; 2319 return dev->msg_enable;
3097} 2320}
2321EXPORT_SYMBOL_GPL(usbnet_get_msglevel);
3098 2322
3099static void usbnet_set_msglevel (struct net_device *net, u32 level) 2323void usbnet_set_msglevel (struct net_device *net, u32 level)
3100{ 2324{
3101 struct usbnet *dev = netdev_priv(net); 2325 struct usbnet *dev = netdev_priv(net);
3102 2326
3103 dev->msg_enable = level; 2327 dev->msg_enable = level;
3104} 2328}
2329EXPORT_SYMBOL_GPL(usbnet_set_msglevel);
3105 2330
3106static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd) 2331/* drivers may override default ethtool_ops in their bind() routine */
3107{ 2332static struct ethtool_ops usbnet_ethtool_ops = {
3108#ifdef NEED_MII 2333 .get_drvinfo = usbnet_get_drvinfo,
3109 { 2334 .get_link = usbnet_get_link,
3110 struct usbnet *dev = netdev_priv(net); 2335 .get_msglevel = usbnet_get_msglevel,
3111 2336 .set_msglevel = usbnet_set_msglevel,
3112 if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL) 2337};
3113 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
3114 }
3115#endif
3116 return -EOPNOTSUPP;
3117}
3118 2338
3119/*-------------------------------------------------------------------------*/ 2339/*-------------------------------------------------------------------------*/
3120 2340
@@ -3209,7 +2429,7 @@ static void tx_complete (struct urb *urb, struct pt_regs *regs)
3209 2429
3210 switch (urb->status) { 2430 switch (urb->status) {
3211 case -EPIPE: 2431 case -EPIPE:
3212 defer_kevent (dev, EVENT_TX_HALT); 2432 usbnet_defer_kevent (dev, EVENT_TX_HALT);
3213 break; 2433 break;
3214 2434
3215 /* software-driven interface shutdown */ 2435 /* software-driven interface shutdown */
@@ -3339,7 +2559,7 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
3339 switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { 2559 switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
3340 case -EPIPE: 2560 case -EPIPE:
3341 netif_stop_queue (net); 2561 netif_stop_queue (net);
3342 defer_kevent (dev, EVENT_TX_HALT); 2562 usbnet_defer_kevent (dev, EVENT_TX_HALT);
3343 break; 2563 break;
3344 default: 2564 default:
3345 if (netif_msg_tx_err (dev)) 2565 if (netif_msg_tx_err (dev))
@@ -3478,8 +2698,6 @@ EXPORT_SYMBOL_GPL(usbnet_disconnect);
3478 2698
3479/*-------------------------------------------------------------------------*/ 2699/*-------------------------------------------------------------------------*/
3480 2700
3481static struct ethtool_ops usbnet_ethtool_ops;
3482
3483// precondition: never called in_interrupt 2701// precondition: never called in_interrupt
3484 2702
3485int 2703int
@@ -3530,8 +2748,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3530 dev->net = net; 2748 dev->net = net;
3531 strcpy (net->name, "usb%d"); 2749 strcpy (net->name, "usb%d");
3532 memcpy (net->dev_addr, node_id, sizeof node_id); 2750 memcpy (net->dev_addr, node_id, sizeof node_id);
3533 dev->hard_mtu = net->mtu + net->hard_header_len;
3534 2751
2752 /* rx and tx sides can use different message sizes;
2753 * bind() should set rx_urb_size in that case.
2754 */
2755 dev->hard_mtu = net->mtu + net->hard_header_len;
3535#if 0 2756#if 0
3536// dma_supported() is deeply broken on almost all architectures 2757// dma_supported() is deeply broken on almost all architectures
3537 // possible with some EHCI controllers 2758 // possible with some EHCI controllers
@@ -3546,7 +2767,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3546 net->stop = usbnet_stop; 2767 net->stop = usbnet_stop;
3547 net->watchdog_timeo = TX_TIMEOUT_JIFFIES; 2768 net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
3548 net->tx_timeout = usbnet_tx_timeout; 2769 net->tx_timeout = usbnet_tx_timeout;
3549 net->do_ioctl = usbnet_ioctl;
3550 net->ethtool_ops = &usbnet_ethtool_ops; 2770 net->ethtool_ops = &usbnet_ethtool_ops;
3551 2771
3552 // allow device-specific bind/init procedures 2772 // allow device-specific bind/init procedures
@@ -3563,8 +2783,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3563 /* maybe the remote can't receive an Ethernet MTU */ 2783 /* maybe the remote can't receive an Ethernet MTU */
3564 if (net->mtu > (dev->hard_mtu - net->hard_header_len)) 2784 if (net->mtu > (dev->hard_mtu - net->hard_header_len))
3565 net->mtu = dev->hard_mtu - net->hard_header_len; 2785 net->mtu = dev->hard_mtu - net->hard_header_len;
3566 } else if (!info->in || info->out) 2786 } else if (!info->in || !info->out)
3567 status = get_endpoints (dev, udev); 2787 status = usbnet_get_endpoints (dev, udev);
3568 else { 2788 else {
3569 dev->in = usb_rcvbulkpipe (xdev, info->in); 2789 dev->in = usb_rcvbulkpipe (xdev, info->in);
3570 dev->out = usb_sndbulkpipe (xdev, info->out); 2790 dev->out = usb_sndbulkpipe (xdev, info->out);
@@ -3581,6 +2801,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3581 if (status < 0) 2801 if (status < 0)
3582 goto out1; 2802 goto out1;
3583 2803
2804 if (!dev->rx_urb_size)
2805 dev->rx_urb_size = dev->hard_mtu;
3584 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); 2806 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
3585 2807
3586 SET_NETDEV_DEV(net, &udev->dev); 2808 SET_NETDEV_DEV(net, &udev->dev);
@@ -3662,62 +2884,6 @@ EXPORT_SYMBOL_GPL(usbnet_resume);
3662 2884
3663static const struct usb_device_id products [] = { 2885static const struct usb_device_id products [] = {
3664 2886
3665#ifdef CONFIG_USB_AX8817X
3666{
3667 // Linksys USB200M
3668 USB_DEVICE (0x077b, 0x2226),
3669 .driver_info = (unsigned long) &ax8817x_info,
3670}, {
3671 // Netgear FA120
3672 USB_DEVICE (0x0846, 0x1040),
3673 .driver_info = (unsigned long) &netgear_fa120_info,
3674}, {
3675 // DLink DUB-E100
3676 USB_DEVICE (0x2001, 0x1a00),
3677 .driver_info = (unsigned long) &dlink_dub_e100_info,
3678}, {
3679 // Intellinet, ST Lab USB Ethernet
3680 USB_DEVICE (0x0b95, 0x1720),
3681 .driver_info = (unsigned long) &ax8817x_info,
3682}, {
3683 // Hawking UF200, TrendNet TU2-ET100
3684 USB_DEVICE (0x07b8, 0x420a),
3685 .driver_info = (unsigned long) &hawking_uf200_info,
3686}, {
3687 // Billionton Systems, USB2AR
3688 USB_DEVICE (0x08dd, 0x90ff),
3689 .driver_info = (unsigned long) &ax8817x_info,
3690}, {
3691 // ATEN UC210T
3692 USB_DEVICE (0x0557, 0x2009),
3693 .driver_info = (unsigned long) &ax8817x_info,
3694}, {
3695 // Buffalo LUA-U2-KTX
3696 USB_DEVICE (0x0411, 0x003d),
3697 .driver_info = (unsigned long) &ax8817x_info,
3698}, {
3699 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
3700 USB_DEVICE (0x6189, 0x182d),
3701 .driver_info = (unsigned long) &ax8817x_info,
3702}, {
3703 // corega FEther USB2-TX
3704 USB_DEVICE (0x07aa, 0x0017),
3705 .driver_info = (unsigned long) &ax8817x_info,
3706}, {
3707 // Surecom EP-1427X-2
3708 USB_DEVICE (0x1189, 0x0893),
3709 .driver_info = (unsigned long) &ax8817x_info,
3710}, {
3711 // goodway corp usb gwusb2e
3712 USB_DEVICE (0x1631, 0x6200),
3713 .driver_info = (unsigned long) &ax8817x_info,
3714}, {
3715 // ASIX AX88772 10/100
3716 USB_DEVICE (0x0b95, 0x7720),
3717 .driver_info = (unsigned long) &ax88772_info,
3718},
3719#endif
3720
3721#ifdef CONFIG_USB_GENESYS 2887#ifdef CONFIG_USB_GENESYS
3722{ 2888{
3723 USB_DEVICE (0x05e3, 0x0502), // GL620USB-A 2889 USB_DEVICE (0x05e3, 0x0502), // GL620USB-A
@@ -3881,14 +3047,6 @@ static struct usb_driver usbnet_driver = {
3881 .resume = usbnet_resume, 3047 .resume = usbnet_resume,
3882}; 3048};
3883 3049
3884/* Default ethtool_ops assigned. Devices can override in their bind() routine */
3885static struct ethtool_ops usbnet_ethtool_ops = {
3886 .get_drvinfo = usbnet_get_drvinfo,
3887 .get_link = usbnet_get_link,
3888 .get_msglevel = usbnet_get_msglevel,
3889 .set_msglevel = usbnet_set_msglevel,
3890};
3891
3892/*-------------------------------------------------------------------------*/ 3050/*-------------------------------------------------------------------------*/
3893 3051
3894static int __init usbnet_init(void) 3052static int __init usbnet_init(void)
diff --git a/drivers/usb/net/usbnet.h b/drivers/usb/net/usbnet.h
index d903b4617563..21b5feb54fc0 100644
--- a/drivers/usb/net/usbnet.h
+++ b/drivers/usb/net/usbnet.h
@@ -44,6 +44,7 @@ struct usbnet {
44 unsigned long data [5]; 44 unsigned long data [5];
45 u32 xid; 45 u32 xid;
46 u32 hard_mtu; /* count any extra framing */ 46 u32 hard_mtu; /* count any extra framing */
47 size_t rx_urb_size; /* size for rx urbs */
47 struct mii_if_info mii; 48 struct mii_if_info mii;
48 49
49 /* various kinds of pending driver work */ 50 /* various kinds of pending driver work */
@@ -140,6 +141,13 @@ struct skb_data { /* skb->cb is one of these */
140}; 141};
141 142
142 143
144extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *);
145extern void usbnet_defer_kevent (struct usbnet *, int);
146extern void usbnet_skb_return (struct usbnet *, struct sk_buff *);
147
148extern u32 usbnet_get_msglevel (struct net_device *);
149extern void usbnet_set_msglevel (struct net_device *, u32);
150extern void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
143 151
144/* messaging support includes the interface name, so it must not be 152/* messaging support includes the interface name, so it must not be
145 * used before it has one ... notably, in minidriver bind() calls. 153 * used before it has one ... notably, in minidriver bind() calls.
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-16 22:56:18 -0500