Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * ChangeLog: | |
9 | * .... Most of the time spent on reading sources & docs. | |
10 | * v0.2.x First official release for the Linux kernel. | |
11 | * v0.3.0 Beutified and structured, some bugs fixed. | |
12 | * v0.3.x URBifying bulk requests and bugfixing. First relatively | |
13 | * stable release. Still can touch device's registers only | |
14 | * from top-halves. | |
15 | * v0.4.0 Control messages remained unurbified are now URBs. | |
16 | * Now we can touch the HW at any time. | |
17 | * v0.4.9 Control urbs again use process context to wait. Argh... | |
18 | * Some long standing bugs (enable_net_traffic) fixed. | |
19 | * Also nasty trick about resubmiting control urb from | |
20 | * interrupt context used. Please let me know how it | |
21 | * behaves. Pegasus II support added since this version. | |
22 | * TODO: suppressing HCD warnings spewage on disconnect. | |
23 | * v0.4.13 Ethernet address is now set at probe(), not at open() | |
24 | * time as this seems to break dhcpd. | |
25 | * v0.5.0 branch to 2.5.x kernels | |
26 | * v0.5.1 ethtool support added | |
27 | * v0.5.5 rx socket buffers are in a pool and the their allocation | |
28 | * is out of the interrupt routine. | |
29 | */ | |
30 | ||
1da177e4 LT |
31 | #include <linux/sched.h> |
32 | #include <linux/slab.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/etherdevice.h> | |
37 | #include <linux/ethtool.h> | |
38 | #include <linux/mii.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/module.h> | |
41 | #include <asm/byteorder.h> | |
42 | #include <asm/uaccess.h> | |
43 | #include "pegasus.h" | |
44 | ||
45 | /* | |
46 | * Version Information | |
47 | */ | |
37cf3477 | 48 | #define DRIVER_VERSION "v0.6.14 (2006/09/27)" |
1da177e4 LT |
49 | #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" |
50 | #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" | |
51 | ||
52 | static const char driver_name[] = "pegasus"; | |
53 | ||
54 | #undef PEGASUS_WRITE_EEPROM | |
55 | #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ | |
56 | BMSR_100FULL | BMSR_ANEGCAPABLE) | |
57 | ||
58 | static int loopback = 0; | |
59 | static int mii_mode = 0; | |
a4f81a61 | 60 | static char *devid=NULL; |
1da177e4 LT |
61 | |
62 | static struct usb_eth_dev usb_dev_id[] = { | |
63 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
64 | {.name = pn, .vendor = vid, .device = pid, .private = flags}, | |
65 | #include "pegasus.h" | |
66 | #undef PEGASUS_DEV | |
a4f81a61 | 67 | {NULL, 0, 0, 0}, |
1da177e4 LT |
68 | {NULL, 0, 0, 0} |
69 | }; | |
70 | ||
71 | static struct usb_device_id pegasus_ids[] = { | |
72 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
73 | {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, | |
74 | #include "pegasus.h" | |
75 | #undef PEGASUS_DEV | |
a4f81a61 | 76 | {}, |
1da177e4 LT |
77 | {} |
78 | }; | |
79 | ||
80 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
81 | MODULE_DESCRIPTION(DRIVER_DESC); | |
82 | MODULE_LICENSE("GPL"); | |
83 | module_param(loopback, bool, 0); | |
84 | module_param(mii_mode, bool, 0); | |
a4f81a61 | 85 | module_param(devid, charp, 0); |
1da177e4 LT |
86 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); |
87 | MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); | |
a4f81a61 | 88 | MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); |
1da177e4 LT |
89 | |
90 | /* use ethtool to change the level for any given device */ | |
91 | static int msg_level = -1; | |
92 | module_param (msg_level, int, 0); | |
93 | MODULE_PARM_DESC (msg_level, "Override default message level"); | |
94 | ||
95 | MODULE_DEVICE_TABLE(usb, pegasus_ids); | |
96 | ||
97 | static int update_eth_regs_async(pegasus_t *); | |
98 | /* Aargh!!! I _really_ hate such tweaks */ | |
7d12e780 | 99 | static void ctrl_callback(struct urb *urb) |
1da177e4 LT |
100 | { |
101 | pegasus_t *pegasus = urb->context; | |
102 | ||
103 | if (!pegasus) | |
104 | return; | |
105 | ||
106 | switch (urb->status) { | |
107 | case 0: | |
108 | if (pegasus->flags & ETH_REGS_CHANGE) { | |
109 | pegasus->flags &= ~ETH_REGS_CHANGE; | |
110 | pegasus->flags |= ETH_REGS_CHANGED; | |
111 | update_eth_regs_async(pegasus); | |
112 | return; | |
113 | } | |
114 | break; | |
115 | case -EINPROGRESS: | |
116 | return; | |
117 | case -ENOENT: | |
118 | break; | |
119 | default: | |
120 | if (netif_msg_drv(pegasus)) | |
4a1728a2 | 121 | dev_dbg(&pegasus->intf->dev, "%s, status %d\n", |
1da177e4 LT |
122 | __FUNCTION__, urb->status); |
123 | } | |
124 | pegasus->flags &= ~ETH_REGS_CHANGED; | |
125 | wake_up(&pegasus->ctrl_wait); | |
126 | } | |
127 | ||
128 | static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size, | |
129 | void *data) | |
130 | { | |
131 | int ret; | |
132 | char *buffer; | |
133 | DECLARE_WAITQUEUE(wait, current); | |
134 | ||
135 | buffer = kmalloc(size, GFP_KERNEL); | |
136 | if (!buffer) { | |
137 | if (netif_msg_drv(pegasus)) | |
138 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
139 | __FUNCTION__); | |
140 | return -ENOMEM; | |
141 | } | |
142 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
143 | set_current_state(TASK_UNINTERRUPTIBLE); | |
144 | while (pegasus->flags & ETH_REGS_CHANGED) | |
145 | schedule(); | |
146 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
147 | set_current_state(TASK_RUNNING); | |
148 | ||
149 | pegasus->dr.bRequestType = PEGASUS_REQT_READ; | |
150 | pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; | |
151 | pegasus->dr.wValue = cpu_to_le16(0); | |
152 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
153 | pegasus->dr.wLength = cpu_to_le16p(&size); | |
154 | pegasus->ctrl_urb->transfer_buffer_length = size; | |
155 | ||
156 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
157 | usb_rcvctrlpipe(pegasus->usb, 0), | |
158 | (char *) &pegasus->dr, | |
159 | buffer, size, ctrl_callback, pegasus); | |
160 | ||
161 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
162 | set_current_state(TASK_UNINTERRUPTIBLE); | |
163 | ||
164 | /* using ATOMIC, we'd never wake up if we slept */ | |
165 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
10c8211c | 166 | set_current_state(TASK_RUNNING); |
955a2608 DB |
167 | if (ret == -ENODEV) |
168 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
169 | if (netif_msg_drv(pegasus)) |
170 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
171 | __FUNCTION__, ret); | |
172 | goto out; | |
173 | } | |
174 | ||
175 | schedule(); | |
176 | out: | |
177 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
178 | memcpy(data, buffer, size); | |
179 | kfree(buffer); | |
180 | ||
181 | return ret; | |
182 | } | |
183 | ||
184 | static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, | |
185 | void *data) | |
186 | { | |
187 | int ret; | |
188 | char *buffer; | |
189 | DECLARE_WAITQUEUE(wait, current); | |
190 | ||
191 | buffer = kmalloc(size, GFP_KERNEL); | |
192 | if (!buffer) { | |
193 | if (netif_msg_drv(pegasus)) | |
194 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
195 | __FUNCTION__); | |
196 | return -ENOMEM; | |
197 | } | |
198 | memcpy(buffer, data, size); | |
199 | ||
200 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
201 | set_current_state(TASK_UNINTERRUPTIBLE); | |
202 | while (pegasus->flags & ETH_REGS_CHANGED) | |
203 | schedule(); | |
204 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
205 | set_current_state(TASK_RUNNING); | |
206 | ||
207 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
208 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; | |
209 | pegasus->dr.wValue = cpu_to_le16(0); | |
210 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
211 | pegasus->dr.wLength = cpu_to_le16p(&size); | |
212 | pegasus->ctrl_urb->transfer_buffer_length = size; | |
213 | ||
214 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
215 | usb_sndctrlpipe(pegasus->usb, 0), | |
216 | (char *) &pegasus->dr, | |
217 | buffer, size, ctrl_callback, pegasus); | |
218 | ||
219 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
220 | set_current_state(TASK_UNINTERRUPTIBLE); | |
221 | ||
222 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
955a2608 DB |
223 | if (ret == -ENODEV) |
224 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
225 | if (netif_msg_drv(pegasus)) |
226 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
227 | __FUNCTION__, ret); | |
228 | goto out; | |
229 | } | |
230 | ||
231 | schedule(); | |
232 | out: | |
233 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
234 | kfree(buffer); | |
235 | ||
236 | return ret; | |
237 | } | |
238 | ||
239 | static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) | |
240 | { | |
241 | int ret; | |
242 | char *tmp; | |
243 | DECLARE_WAITQUEUE(wait, current); | |
244 | ||
245 | tmp = kmalloc(1, GFP_KERNEL); | |
246 | if (!tmp) { | |
247 | if (netif_msg_drv(pegasus)) | |
248 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
249 | __FUNCTION__); | |
250 | return -ENOMEM; | |
251 | } | |
252 | memcpy(tmp, &data, 1); | |
253 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
254 | set_current_state(TASK_UNINTERRUPTIBLE); | |
255 | while (pegasus->flags & ETH_REGS_CHANGED) | |
256 | schedule(); | |
257 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
258 | set_current_state(TASK_RUNNING); | |
259 | ||
260 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
261 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; | |
262 | pegasus->dr.wValue = cpu_to_le16(data); | |
263 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
264 | pegasus->dr.wLength = cpu_to_le16(1); | |
265 | pegasus->ctrl_urb->transfer_buffer_length = 1; | |
266 | ||
267 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
268 | usb_sndctrlpipe(pegasus->usb, 0), | |
269 | (char *) &pegasus->dr, | |
016534cf | 270 | tmp, 1, ctrl_callback, pegasus); |
1da177e4 LT |
271 | |
272 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
273 | set_current_state(TASK_UNINTERRUPTIBLE); | |
274 | ||
275 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
955a2608 DB |
276 | if (ret == -ENODEV) |
277 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
278 | if (netif_msg_drv(pegasus)) |
279 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
280 | __FUNCTION__, ret); | |
281 | goto out; | |
282 | } | |
283 | ||
284 | schedule(); | |
285 | out: | |
286 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
287 | kfree(tmp); | |
288 | ||
289 | return ret; | |
290 | } | |
291 | ||
292 | static int update_eth_regs_async(pegasus_t * pegasus) | |
293 | { | |
294 | int ret; | |
295 | ||
296 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
297 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; | |
298 | pegasus->dr.wValue = 0; | |
299 | pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); | |
300 | pegasus->dr.wLength = cpu_to_le16(3); | |
301 | pegasus->ctrl_urb->transfer_buffer_length = 3; | |
302 | ||
303 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
304 | usb_sndctrlpipe(pegasus->usb, 0), | |
305 | (char *) &pegasus->dr, | |
306 | pegasus->eth_regs, 3, ctrl_callback, pegasus); | |
307 | ||
955a2608 DB |
308 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { |
309 | if (ret == -ENODEV) | |
310 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
311 | if (netif_msg_drv(pegasus)) |
312 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
313 | __FUNCTION__, ret); | |
955a2608 | 314 | } |
1da177e4 LT |
315 | |
316 | return ret; | |
317 | } | |
318 | ||
c43c49bd | 319 | /* Returns 0 on success, error on failure */ |
1da177e4 LT |
320 | static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd) |
321 | { | |
322 | int i; | |
323 | __u8 data[4] = { phy, 0, 0, indx }; | |
324 | __le16 regdi; | |
325 | int ret; | |
326 | ||
4a1728a2 PM |
327 | set_register(pegasus, PhyCtrl, 0); |
328 | set_registers(pegasus, PhyAddr, sizeof (data), data); | |
329 | set_register(pegasus, PhyCtrl, (indx | PHY_READ)); | |
1da177e4 LT |
330 | for (i = 0; i < REG_TIMEOUT; i++) { |
331 | ret = get_registers(pegasus, PhyCtrl, 1, data); | |
7e713b82 DB |
332 | if (ret == -ESHUTDOWN) |
333 | goto fail; | |
1da177e4 LT |
334 | if (data[0] & PHY_DONE) |
335 | break; | |
336 | } | |
337 | if (i < REG_TIMEOUT) { | |
338 | ret = get_registers(pegasus, PhyData, 2, ®di); | |
339 | *regd = le16_to_cpu(regdi); | |
4a1728a2 | 340 | return ret; |
1da177e4 | 341 | } |
7e713b82 | 342 | fail: |
1da177e4 | 343 | if (netif_msg_drv(pegasus)) |
37cf3477 | 344 | dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__); |
1da177e4 | 345 | |
4a1728a2 | 346 | return ret; |
1da177e4 LT |
347 | } |
348 | ||
349 | static int mdio_read(struct net_device *dev, int phy_id, int loc) | |
350 | { | |
351 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); | |
352 | u16 res; | |
353 | ||
354 | read_mii_word(pegasus, phy_id, loc, &res); | |
355 | return (int)res; | |
356 | } | |
357 | ||
358 | static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd) | |
359 | { | |
360 | int i; | |
361 | __u8 data[4] = { phy, 0, 0, indx }; | |
362 | int ret; | |
363 | ||
364 | data[1] = (u8) regd; | |
365 | data[2] = (u8) (regd >> 8); | |
4a1728a2 PM |
366 | set_register(pegasus, PhyCtrl, 0); |
367 | set_registers(pegasus, PhyAddr, sizeof(data), data); | |
368 | set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); | |
1da177e4 LT |
369 | for (i = 0; i < REG_TIMEOUT; i++) { |
370 | ret = get_registers(pegasus, PhyCtrl, 1, data); | |
7e713b82 DB |
371 | if (ret == -ESHUTDOWN) |
372 | goto fail; | |
1da177e4 LT |
373 | if (data[0] & PHY_DONE) |
374 | break; | |
375 | } | |
376 | if (i < REG_TIMEOUT) | |
4a1728a2 | 377 | return ret; |
1da177e4 | 378 | |
7e713b82 | 379 | fail: |
1da177e4 | 380 | if (netif_msg_drv(pegasus)) |
37cf3477 | 381 | dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__); |
4a1728a2 | 382 | return -ETIMEDOUT; |
1da177e4 LT |
383 | } |
384 | ||
385 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) | |
386 | { | |
387 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); | |
388 | ||
389 | write_mii_word(pegasus, phy_id, loc, val); | |
390 | } | |
391 | ||
392 | static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata) | |
393 | { | |
394 | int i; | |
395 | __u8 tmp; | |
396 | __le16 retdatai; | |
397 | int ret; | |
398 | ||
4a1728a2 PM |
399 | set_register(pegasus, EpromCtrl, 0); |
400 | set_register(pegasus, EpromOffset, index); | |
401 | set_register(pegasus, EpromCtrl, EPROM_READ); | |
1da177e4 LT |
402 | |
403 | for (i = 0; i < REG_TIMEOUT; i++) { | |
404 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
405 | if (tmp & EPROM_DONE) | |
406 | break; | |
7e713b82 DB |
407 | if (ret == -ESHUTDOWN) |
408 | goto fail; | |
1da177e4 LT |
409 | } |
410 | if (i < REG_TIMEOUT) { | |
411 | ret = get_registers(pegasus, EpromData, 2, &retdatai); | |
412 | *retdata = le16_to_cpu(retdatai); | |
4a1728a2 | 413 | return ret; |
1da177e4 LT |
414 | } |
415 | ||
7e713b82 | 416 | fail: |
1da177e4 | 417 | if (netif_msg_drv(pegasus)) |
37cf3477 | 418 | dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__); |
4a1728a2 | 419 | return -ETIMEDOUT; |
1da177e4 LT |
420 | } |
421 | ||
422 | #ifdef PEGASUS_WRITE_EEPROM | |
423 | static inline void enable_eprom_write(pegasus_t * pegasus) | |
424 | { | |
425 | __u8 tmp; | |
426 | int ret; | |
427 | ||
4a1728a2 PM |
428 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
429 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); | |
1da177e4 LT |
430 | } |
431 | ||
432 | static inline void disable_eprom_write(pegasus_t * pegasus) | |
433 | { | |
434 | __u8 tmp; | |
435 | int ret; | |
436 | ||
4a1728a2 PM |
437 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
438 | set_register(pegasus, EpromCtrl, 0); | |
439 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); | |
1da177e4 LT |
440 | } |
441 | ||
442 | static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data) | |
443 | { | |
444 | int i; | |
445 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; | |
446 | int ret; | |
447 | ||
4a1728a2 | 448 | set_registers(pegasus, EpromOffset, 4, d); |
1da177e4 | 449 | enable_eprom_write(pegasus); |
4a1728a2 PM |
450 | set_register(pegasus, EpromOffset, index); |
451 | set_registers(pegasus, EpromData, 2, &data); | |
452 | set_register(pegasus, EpromCtrl, EPROM_WRITE); | |
1da177e4 LT |
453 | |
454 | for (i = 0; i < REG_TIMEOUT; i++) { | |
455 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
7e713b82 DB |
456 | if (ret == -ESHUTDOWN) |
457 | goto fail; | |
1da177e4 LT |
458 | if (tmp & EPROM_DONE) |
459 | break; | |
460 | } | |
461 | disable_eprom_write(pegasus); | |
462 | if (i < REG_TIMEOUT) | |
4a1728a2 | 463 | return ret; |
7e713b82 | 464 | fail: |
1da177e4 | 465 | if (netif_msg_drv(pegasus)) |
37cf3477 | 466 | dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__); |
4a1728a2 | 467 | return -ETIMEDOUT; |
1da177e4 LT |
468 | } |
469 | #endif /* PEGASUS_WRITE_EEPROM */ | |
470 | ||
471 | static inline void get_node_id(pegasus_t * pegasus, __u8 * id) | |
472 | { | |
473 | int i; | |
474 | __u16 w16; | |
475 | ||
476 | for (i = 0; i < 3; i++) { | |
477 | read_eprom_word(pegasus, i, &w16); | |
478 | ((__le16 *) id)[i] = cpu_to_le16p(&w16); | |
479 | } | |
480 | } | |
481 | ||
482 | static void set_ethernet_addr(pegasus_t * pegasus) | |
483 | { | |
484 | __u8 node_id[6]; | |
1da177e4 | 485 | |
37cf3477 PM |
486 | if (pegasus->features & PEGASUS_II) { |
487 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); | |
488 | } else { | |
489 | get_node_id(pegasus, node_id); | |
490 | set_registers(pegasus, EthID, sizeof (node_id), node_id); | |
491 | } | |
1da177e4 LT |
492 | memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id)); |
493 | } | |
494 | ||
495 | static inline int reset_mac(pegasus_t * pegasus) | |
496 | { | |
497 | __u8 data = 0x8; | |
498 | int i; | |
1da177e4 | 499 | |
4a1728a2 | 500 | set_register(pegasus, EthCtrl1, data); |
1da177e4 | 501 | for (i = 0; i < REG_TIMEOUT; i++) { |
4a1728a2 | 502 | get_registers(pegasus, EthCtrl1, 1, &data); |
1da177e4 LT |
503 | if (~data & 0x08) { |
504 | if (loopback & 1) | |
505 | break; | |
506 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) | |
4a1728a2 | 507 | set_register(pegasus, Gpio1, 0x34); |
1da177e4 | 508 | else |
4a1728a2 PM |
509 | set_register(pegasus, Gpio1, 0x26); |
510 | set_register(pegasus, Gpio0, pegasus->features); | |
511 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); | |
1da177e4 LT |
512 | break; |
513 | } | |
514 | } | |
515 | if (i == REG_TIMEOUT) | |
4a1728a2 | 516 | return -ETIMEDOUT; |
1da177e4 LT |
517 | |
518 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
519 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
4a1728a2 PM |
520 | set_register(pegasus, Gpio0, 0x24); |
521 | set_register(pegasus, Gpio0, 0x26); | |
1da177e4 LT |
522 | } |
523 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { | |
524 | __u16 auxmode; | |
525 | read_mii_word(pegasus, 3, 0x1b, &auxmode); | |
526 | write_mii_word(pegasus, 3, 0x1b, auxmode | 4); | |
527 | } | |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) | |
533 | { | |
534 | __u16 linkpart; | |
535 | __u8 data[4]; | |
536 | pegasus_t *pegasus = netdev_priv(dev); | |
537 | int ret; | |
538 | ||
539 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); | |
540 | data[0] = 0xc9; | |
541 | data[1] = 0; | |
542 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) | |
543 | data[1] |= 0x20; /* set full duplex */ | |
544 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) | |
545 | data[1] |= 0x10; /* set 100 Mbps */ | |
546 | if (mii_mode) | |
547 | data[1] = 0; | |
548 | data[2] = (loopback & 1) ? 0x09 : 0x01; | |
549 | ||
550 | memcpy(pegasus->eth_regs, data, sizeof (data)); | |
551 | ret = set_registers(pegasus, EthCtrl0, 3, data); | |
552 | ||
553 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
efafe6fb | 554 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
1da177e4 LT |
555 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
556 | u16 auxmode; | |
557 | read_mii_word(pegasus, 0, 0x1b, &auxmode); | |
558 | write_mii_word(pegasus, 0, 0x1b, auxmode | 4); | |
559 | } | |
560 | ||
4a1728a2 | 561 | return ret; |
1da177e4 LT |
562 | } |
563 | ||
564 | static void fill_skb_pool(pegasus_t * pegasus) | |
565 | { | |
566 | int i; | |
567 | ||
568 | for (i = 0; i < RX_SKBS; i++) { | |
569 | if (pegasus->rx_pool[i]) | |
570 | continue; | |
571 | pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); | |
572 | /* | |
573 | ** we give up if the allocation fail. the tasklet will be | |
574 | ** rescheduled again anyway... | |
575 | */ | |
576 | if (pegasus->rx_pool[i] == NULL) | |
577 | return; | |
1da177e4 LT |
578 | skb_reserve(pegasus->rx_pool[i], 2); |
579 | } | |
580 | } | |
581 | ||
582 | static void free_skb_pool(pegasus_t * pegasus) | |
583 | { | |
584 | int i; | |
585 | ||
586 | for (i = 0; i < RX_SKBS; i++) { | |
587 | if (pegasus->rx_pool[i]) { | |
588 | dev_kfree_skb(pegasus->rx_pool[i]); | |
589 | pegasus->rx_pool[i] = NULL; | |
590 | } | |
591 | } | |
592 | } | |
593 | ||
594 | static inline struct sk_buff *pull_skb(pegasus_t * pegasus) | |
595 | { | |
596 | int i; | |
597 | struct sk_buff *skb; | |
598 | ||
599 | for (i = 0; i < RX_SKBS; i++) { | |
600 | if (likely(pegasus->rx_pool[i] != NULL)) { | |
601 | skb = pegasus->rx_pool[i]; | |
602 | pegasus->rx_pool[i] = NULL; | |
603 | return skb; | |
604 | } | |
605 | } | |
606 | return NULL; | |
607 | } | |
608 | ||
7d12e780 | 609 | static void read_bulk_callback(struct urb *urb) |
1da177e4 LT |
610 | { |
611 | pegasus_t *pegasus = urb->context; | |
612 | struct net_device *net; | |
613 | int rx_status, count = urb->actual_length; | |
614 | u8 *buf = urb->transfer_buffer; | |
615 | __u16 pkt_len; | |
616 | ||
617 | if (!pegasus) | |
618 | return; | |
619 | ||
620 | net = pegasus->net; | |
621 | if (!netif_device_present(net) || !netif_running(net)) | |
622 | return; | |
623 | ||
624 | switch (urb->status) { | |
625 | case 0: | |
626 | break; | |
38e2bfc9 | 627 | case -ETIME: |
1da177e4 LT |
628 | if (netif_msg_rx_err(pegasus)) |
629 | pr_debug("%s: reset MAC\n", net->name); | |
630 | pegasus->flags &= ~PEGASUS_RX_BUSY; | |
631 | break; | |
632 | case -EPIPE: /* stall, or disconnect from TT */ | |
633 | /* FIXME schedule work to clear the halt */ | |
634 | if (netif_msg_rx_err(pegasus)) | |
635 | printk(KERN_WARNING "%s: no rx stall recovery\n", | |
636 | net->name); | |
637 | return; | |
638 | case -ENOENT: | |
639 | case -ECONNRESET: | |
640 | case -ESHUTDOWN: | |
641 | if (netif_msg_ifdown(pegasus)) | |
642 | pr_debug("%s: rx unlink, %d\n", net->name, urb->status); | |
643 | return; | |
644 | default: | |
645 | if (netif_msg_rx_err(pegasus)) | |
646 | pr_debug("%s: RX status %d\n", net->name, urb->status); | |
647 | goto goon; | |
648 | } | |
649 | ||
650 | if (!count || count < 4) | |
651 | goto goon; | |
652 | ||
653 | rx_status = buf[count - 2]; | |
654 | if (rx_status & 0x1e) { | |
655 | if (netif_msg_rx_err(pegasus)) | |
656 | pr_debug("%s: RX packet error %x\n", | |
657 | net->name, rx_status); | |
658 | pegasus->stats.rx_errors++; | |
659 | if (rx_status & 0x06) // long or runt | |
660 | pegasus->stats.rx_length_errors++; | |
661 | if (rx_status & 0x08) | |
662 | pegasus->stats.rx_crc_errors++; | |
663 | if (rx_status & 0x10) // extra bits | |
664 | pegasus->stats.rx_frame_errors++; | |
665 | goto goon; | |
666 | } | |
667 | if (pegasus->chip == 0x8513) { | |
668 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); | |
669 | pkt_len &= 0x0fff; | |
670 | pegasus->rx_skb->data += 2; | |
671 | } else { | |
672 | pkt_len = buf[count - 3] << 8; | |
673 | pkt_len += buf[count - 4]; | |
674 | pkt_len &= 0xfff; | |
675 | pkt_len -= 8; | |
676 | } | |
677 | ||
a85a46f2 KV |
678 | /* |
679 | * If the packet is unreasonably long, quietly drop it rather than | |
680 | * kernel panicing by calling skb_put. | |
681 | */ | |
682 | if (pkt_len > PEGASUS_MTU) | |
683 | goto goon; | |
684 | ||
1da177e4 LT |
685 | /* |
686 | * at this point we are sure pegasus->rx_skb != NULL | |
687 | * so we go ahead and pass up the packet. | |
688 | */ | |
689 | skb_put(pegasus->rx_skb, pkt_len); | |
690 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); | |
691 | netif_rx(pegasus->rx_skb); | |
692 | pegasus->stats.rx_packets++; | |
693 | pegasus->stats.rx_bytes += pkt_len; | |
694 | ||
695 | if (pegasus->flags & PEGASUS_UNPLUG) | |
696 | return; | |
697 | ||
698 | spin_lock(&pegasus->rx_pool_lock); | |
699 | pegasus->rx_skb = pull_skb(pegasus); | |
700 | spin_unlock(&pegasus->rx_pool_lock); | |
701 | ||
702 | if (pegasus->rx_skb == NULL) | |
703 | goto tl_sched; | |
704 | goon: | |
705 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
706 | usb_rcvbulkpipe(pegasus->usb, 1), | |
707 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
708 | read_bulk_callback, pegasus); | |
955a2608 DB |
709 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
710 | if (rx_status == -ENODEV) | |
711 | netif_device_detach(pegasus->net); | |
712 | else if (rx_status) { | |
1da177e4 LT |
713 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
714 | goto tl_sched; | |
715 | } else { | |
716 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
717 | } | |
718 | ||
719 | return; | |
720 | ||
721 | tl_sched: | |
722 | tasklet_schedule(&pegasus->rx_tl); | |
723 | } | |
724 | ||
725 | static void rx_fixup(unsigned long data) | |
726 | { | |
727 | pegasus_t *pegasus; | |
728 | unsigned long flags; | |
955a2608 | 729 | int status; |
1da177e4 LT |
730 | |
731 | pegasus = (pegasus_t *) data; | |
732 | if (pegasus->flags & PEGASUS_UNPLUG) | |
733 | return; | |
734 | ||
735 | spin_lock_irqsave(&pegasus->rx_pool_lock, flags); | |
736 | fill_skb_pool(pegasus); | |
737 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) | |
738 | if (pegasus->rx_skb) | |
739 | goto try_again; | |
740 | if (pegasus->rx_skb == NULL) { | |
741 | pegasus->rx_skb = pull_skb(pegasus); | |
742 | } | |
743 | if (pegasus->rx_skb == NULL) { | |
744 | if (netif_msg_rx_err(pegasus)) | |
745 | printk(KERN_WARNING "%s: low on memory\n", | |
746 | pegasus->net->name); | |
747 | tasklet_schedule(&pegasus->rx_tl); | |
748 | goto done; | |
749 | } | |
750 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
751 | usb_rcvbulkpipe(pegasus->usb, 1), | |
752 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
753 | read_bulk_callback, pegasus); | |
754 | try_again: | |
955a2608 DB |
755 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
756 | if (status == -ENODEV) | |
757 | netif_device_detach(pegasus->net); | |
758 | else if (status) { | |
1da177e4 LT |
759 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
760 | tasklet_schedule(&pegasus->rx_tl); | |
761 | } else { | |
762 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
763 | } | |
764 | done: | |
765 | spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); | |
766 | } | |
767 | ||
7d12e780 | 768 | static void write_bulk_callback(struct urb *urb) |
1da177e4 LT |
769 | { |
770 | pegasus_t *pegasus = urb->context; | |
9351982b | 771 | struct net_device *net; |
1da177e4 LT |
772 | |
773 | if (!pegasus) | |
774 | return; | |
775 | ||
9351982b MG |
776 | net = pegasus->net; |
777 | ||
1da177e4 LT |
778 | if (!netif_device_present(net) || !netif_running(net)) |
779 | return; | |
780 | ||
781 | switch (urb->status) { | |
782 | case -EPIPE: | |
783 | /* FIXME schedule_work() to clear the tx halt */ | |
784 | netif_stop_queue(net); | |
785 | if (netif_msg_tx_err(pegasus)) | |
786 | printk(KERN_WARNING "%s: no tx stall recovery\n", | |
787 | net->name); | |
788 | return; | |
789 | case -ENOENT: | |
790 | case -ECONNRESET: | |
791 | case -ESHUTDOWN: | |
792 | if (netif_msg_ifdown(pegasus)) | |
793 | pr_debug("%s: tx unlink, %d\n", net->name, urb->status); | |
794 | return; | |
795 | default: | |
796 | if (netif_msg_tx_err(pegasus)) | |
797 | pr_info("%s: TX status %d\n", net->name, urb->status); | |
798 | /* FALL THROUGH */ | |
799 | case 0: | |
800 | break; | |
801 | } | |
802 | ||
803 | net->trans_start = jiffies; | |
804 | netif_wake_queue(net); | |
805 | } | |
806 | ||
7d12e780 | 807 | static void intr_callback(struct urb *urb) |
1da177e4 LT |
808 | { |
809 | pegasus_t *pegasus = urb->context; | |
810 | struct net_device *net; | |
811 | int status; | |
812 | ||
813 | if (!pegasus) | |
814 | return; | |
815 | net = pegasus->net; | |
816 | ||
817 | switch (urb->status) { | |
818 | case 0: | |
819 | break; | |
820 | case -ECONNRESET: /* unlink */ | |
821 | case -ENOENT: | |
822 | case -ESHUTDOWN: | |
823 | return; | |
824 | default: | |
825 | /* some Pegasus-I products report LOTS of data | |
826 | * toggle errors... avoid log spamming | |
827 | */ | |
828 | if (netif_msg_timer(pegasus)) | |
829 | pr_debug("%s: intr status %d\n", net->name, | |
830 | urb->status); | |
831 | } | |
832 | ||
833 | if (urb->actual_length >= 6) { | |
834 | u8 * d = urb->transfer_buffer; | |
835 | ||
836 | /* byte 0 == tx_status1, reg 2B */ | |
837 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL | |
838 | |LATE_COL|JABBER_TIMEOUT)) { | |
839 | pegasus->stats.tx_errors++; | |
840 | if (d[0] & TX_UNDERRUN) | |
841 | pegasus->stats.tx_fifo_errors++; | |
842 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) | |
843 | pegasus->stats.tx_aborted_errors++; | |
844 | if (d[0] & LATE_COL) | |
845 | pegasus->stats.tx_window_errors++; | |
846 | } | |
847 | ||
848 | /* d[5].LINK_STATUS lies on some adapters. | |
849 | * d[0].NO_CARRIER kicks in only with failed TX. | |
850 | * ... so monitoring with MII may be safest. | |
851 | */ | |
1da177e4 LT |
852 | |
853 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ | |
854 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; | |
855 | } | |
856 | ||
54e6ecb2 | 857 | status = usb_submit_urb(urb, GFP_ATOMIC); |
955a2608 DB |
858 | if (status == -ENODEV) |
859 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
860 | if (status && netif_msg_timer(pegasus)) |
861 | printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n", | |
862 | net->name, status); | |
863 | } | |
864 | ||
865 | static void pegasus_tx_timeout(struct net_device *net) | |
866 | { | |
867 | pegasus_t *pegasus = netdev_priv(net); | |
868 | if (netif_msg_timer(pegasus)) | |
869 | printk(KERN_WARNING "%s: tx timeout\n", net->name); | |
1da177e4 LT |
870 | usb_unlink_urb(pegasus->tx_urb); |
871 | pegasus->stats.tx_errors++; | |
872 | } | |
873 | ||
874 | static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net) | |
875 | { | |
876 | pegasus_t *pegasus = netdev_priv(net); | |
877 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; | |
878 | int res; | |
879 | __u16 l16 = skb->len; | |
880 | ||
881 | netif_stop_queue(net); | |
882 | ||
883 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); | |
d626f62b | 884 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
1da177e4 LT |
885 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
886 | usb_sndbulkpipe(pegasus->usb, 2), | |
887 | pegasus->tx_buff, count, | |
888 | write_bulk_callback, pegasus); | |
889 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { | |
890 | if (netif_msg_tx_err(pegasus)) | |
891 | printk(KERN_WARNING "%s: fail tx, %d\n", | |
892 | net->name, res); | |
893 | switch (res) { | |
894 | case -EPIPE: /* stall, or disconnect from TT */ | |
895 | /* cleanup should already have been scheduled */ | |
896 | break; | |
897 | case -ENODEV: /* disconnect() upcoming */ | |
955a2608 | 898 | netif_device_detach(pegasus->net); |
1da177e4 LT |
899 | break; |
900 | default: | |
901 | pegasus->stats.tx_errors++; | |
902 | netif_start_queue(net); | |
903 | } | |
904 | } else { | |
905 | pegasus->stats.tx_packets++; | |
906 | pegasus->stats.tx_bytes += skb->len; | |
907 | net->trans_start = jiffies; | |
908 | } | |
909 | dev_kfree_skb(skb); | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
914 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) | |
915 | { | |
916 | return &((pegasus_t *) netdev_priv(dev))->stats; | |
917 | } | |
918 | ||
919 | static inline void disable_net_traffic(pegasus_t * pegasus) | |
920 | { | |
921 | int tmp = 0; | |
1da177e4 | 922 | |
4a1728a2 | 923 | set_registers(pegasus, EthCtrl0, 2, &tmp); |
1da177e4 LT |
924 | } |
925 | ||
926 | static inline void get_interrupt_interval(pegasus_t * pegasus) | |
927 | { | |
928 | __u8 data[2]; | |
929 | ||
930 | read_eprom_word(pegasus, 4, (__u16 *) data); | |
a85a46f2 KV |
931 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
932 | if (data[1] < 0x80) { | |
933 | if (netif_msg_timer(pegasus)) | |
934 | dev_info(&pegasus->intf->dev, "intr interval " | |
935 | "changed from %ums to %ums\n", | |
936 | data[1], 0x80); | |
937 | data[1] = 0x80; | |
938 | #ifdef PEGASUS_WRITE_EEPROM | |
939 | write_eprom_word(pegasus, 4, *(__u16 *) data); | |
1da177e4 | 940 | #endif |
a85a46f2 | 941 | } |
1da177e4 LT |
942 | } |
943 | pegasus->intr_interval = data[1]; | |
944 | } | |
945 | ||
946 | static void set_carrier(struct net_device *net) | |
947 | { | |
948 | pegasus_t *pegasus = netdev_priv(net); | |
949 | u16 tmp; | |
950 | ||
c43c49bd | 951 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
1da177e4 | 952 | return; |
a85a46f2 | 953 | |
1da177e4 LT |
954 | if (tmp & BMSR_LSTATUS) |
955 | netif_carrier_on(net); | |
956 | else | |
957 | netif_carrier_off(net); | |
958 | } | |
959 | ||
960 | static void free_all_urbs(pegasus_t * pegasus) | |
961 | { | |
962 | usb_free_urb(pegasus->intr_urb); | |
963 | usb_free_urb(pegasus->tx_urb); | |
964 | usb_free_urb(pegasus->rx_urb); | |
965 | usb_free_urb(pegasus->ctrl_urb); | |
966 | } | |
967 | ||
968 | static void unlink_all_urbs(pegasus_t * pegasus) | |
969 | { | |
970 | usb_kill_urb(pegasus->intr_urb); | |
971 | usb_kill_urb(pegasus->tx_urb); | |
972 | usb_kill_urb(pegasus->rx_urb); | |
973 | usb_kill_urb(pegasus->ctrl_urb); | |
974 | } | |
975 | ||
976 | static int alloc_urbs(pegasus_t * pegasus) | |
977 | { | |
978 | pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
979 | if (!pegasus->ctrl_urb) { | |
980 | return 0; | |
981 | } | |
982 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
983 | if (!pegasus->rx_urb) { | |
984 | usb_free_urb(pegasus->ctrl_urb); | |
985 | return 0; | |
986 | } | |
987 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
988 | if (!pegasus->tx_urb) { | |
989 | usb_free_urb(pegasus->rx_urb); | |
990 | usb_free_urb(pegasus->ctrl_urb); | |
991 | return 0; | |
992 | } | |
993 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
994 | if (!pegasus->intr_urb) { | |
995 | usb_free_urb(pegasus->tx_urb); | |
996 | usb_free_urb(pegasus->rx_urb); | |
997 | usb_free_urb(pegasus->ctrl_urb); | |
998 | return 0; | |
999 | } | |
1000 | ||
1001 | return 1; | |
1002 | } | |
1003 | ||
1004 | static int pegasus_open(struct net_device *net) | |
1005 | { | |
1006 | pegasus_t *pegasus = netdev_priv(net); | |
1007 | int res; | |
1008 | ||
1009 | if (pegasus->rx_skb == NULL) | |
1010 | pegasus->rx_skb = pull_skb(pegasus); | |
1011 | /* | |
1012 | ** Note: no point to free the pool. it is empty :-) | |
1013 | */ | |
1014 | if (!pegasus->rx_skb) | |
1015 | return -ENOMEM; | |
1016 | ||
1017 | res = set_registers(pegasus, EthID, 6, net->dev_addr); | |
1018 | ||
1019 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
1020 | usb_rcvbulkpipe(pegasus->usb, 1), | |
1021 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
1022 | read_bulk_callback, pegasus); | |
1023 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { | |
955a2608 DB |
1024 | if (res == -ENODEV) |
1025 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
1026 | if (netif_msg_ifup(pegasus)) |
1027 | pr_debug("%s: failed rx_urb, %d", net->name, res); | |
1028 | goto exit; | |
1029 | } | |
1030 | ||
1031 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, | |
1032 | usb_rcvintpipe(pegasus->usb, 3), | |
1033 | pegasus->intr_buff, sizeof (pegasus->intr_buff), | |
1034 | intr_callback, pegasus, pegasus->intr_interval); | |
1035 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { | |
955a2608 DB |
1036 | if (res == -ENODEV) |
1037 | netif_device_detach(pegasus->net); | |
1da177e4 LT |
1038 | if (netif_msg_ifup(pegasus)) |
1039 | pr_debug("%s: failed intr_urb, %d\n", net->name, res); | |
1040 | usb_kill_urb(pegasus->rx_urb); | |
1041 | goto exit; | |
1042 | } | |
1043 | if ((res = enable_net_traffic(net, pegasus->usb))) { | |
1044 | if (netif_msg_ifup(pegasus)) | |
1045 | pr_debug("%s: can't enable_net_traffic() - %d\n", | |
1046 | net->name, res); | |
1047 | res = -EIO; | |
1048 | usb_kill_urb(pegasus->rx_urb); | |
1049 | usb_kill_urb(pegasus->intr_urb); | |
1050 | free_skb_pool(pegasus); | |
1051 | goto exit; | |
1052 | } | |
1053 | set_carrier(net); | |
1054 | netif_start_queue(net); | |
1055 | if (netif_msg_ifup(pegasus)) | |
1056 | pr_debug("%s: open\n", net->name); | |
1057 | res = 0; | |
1058 | exit: | |
1059 | return res; | |
1060 | } | |
1061 | ||
1062 | static int pegasus_close(struct net_device *net) | |
1063 | { | |
1064 | pegasus_t *pegasus = netdev_priv(net); | |
1065 | ||
1066 | netif_stop_queue(net); | |
1067 | if (!(pegasus->flags & PEGASUS_UNPLUG)) | |
1068 | disable_net_traffic(pegasus); | |
1069 | tasklet_kill(&pegasus->rx_tl); | |
1070 | unlink_all_urbs(pegasus); | |
1071 | ||
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | static void pegasus_get_drvinfo(struct net_device *dev, | |
1076 | struct ethtool_drvinfo *info) | |
1077 | { | |
1078 | pegasus_t *pegasus = netdev_priv(dev); | |
1079 | strncpy(info->driver, driver_name, sizeof (info->driver) - 1); | |
1080 | strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1); | |
1081 | usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info)); | |
1082 | } | |
1083 | ||
1084 | /* also handles three patterns of some kind in hardware */ | |
1085 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) | |
1086 | ||
1087 | static void | |
1088 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1089 | { | |
1090 | pegasus_t *pegasus = netdev_priv(dev); | |
1091 | ||
1092 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
1093 | wol->wolopts = pegasus->wolopts; | |
1094 | } | |
1095 | ||
1096 | static int | |
1097 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1098 | { | |
1099 | pegasus_t *pegasus = netdev_priv(dev); | |
1100 | u8 reg78 = 0x04; | |
1101 | ||
1102 | if (wol->wolopts & ~WOL_SUPPORTED) | |
1103 | return -EINVAL; | |
1104 | ||
1105 | if (wol->wolopts & WAKE_MAGIC) | |
1106 | reg78 |= 0x80; | |
1107 | if (wol->wolopts & WAKE_PHY) | |
1108 | reg78 |= 0x40; | |
1109 | /* FIXME this 0x10 bit still needs to get set in the chip... */ | |
1110 | if (wol->wolopts) | |
1111 | pegasus->eth_regs[0] |= 0x10; | |
1112 | else | |
1113 | pegasus->eth_regs[0] &= ~0x10; | |
1114 | pegasus->wolopts = wol->wolopts; | |
1115 | return set_register(pegasus, WakeupControl, reg78); | |
1116 | } | |
1117 | ||
1118 | static inline void pegasus_reset_wol(struct net_device *dev) | |
1119 | { | |
1120 | struct ethtool_wolinfo wol; | |
1121 | ||
1122 | memset(&wol, 0, sizeof wol); | |
1123 | (void) pegasus_set_wol(dev, &wol); | |
1124 | } | |
1125 | ||
1126 | static int | |
1127 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1128 | { | |
1129 | pegasus_t *pegasus; | |
1130 | ||
1131 | if (in_atomic()) | |
1132 | return 0; | |
1133 | ||
1134 | pegasus = netdev_priv(dev); | |
1135 | mii_ethtool_gset(&pegasus->mii, ecmd); | |
1136 | ||
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | static int | |
1141 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1142 | { | |
1143 | pegasus_t *pegasus = netdev_priv(dev); | |
1144 | return mii_ethtool_sset(&pegasus->mii, ecmd); | |
1145 | } | |
1146 | ||
1147 | static int pegasus_nway_reset(struct net_device *dev) | |
1148 | { | |
1149 | pegasus_t *pegasus = netdev_priv(dev); | |
1150 | return mii_nway_restart(&pegasus->mii); | |
1151 | } | |
1152 | ||
1153 | static u32 pegasus_get_link(struct net_device *dev) | |
1154 | { | |
1155 | pegasus_t *pegasus = netdev_priv(dev); | |
1156 | return mii_link_ok(&pegasus->mii); | |
1157 | } | |
1158 | ||
1159 | static u32 pegasus_get_msglevel(struct net_device *dev) | |
1160 | { | |
1161 | pegasus_t *pegasus = netdev_priv(dev); | |
1162 | return pegasus->msg_enable; | |
1163 | } | |
1164 | ||
1165 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) | |
1166 | { | |
1167 | pegasus_t *pegasus = netdev_priv(dev); | |
1168 | pegasus->msg_enable = v; | |
1169 | } | |
1170 | ||
1171 | static struct ethtool_ops ops = { | |
1172 | .get_drvinfo = pegasus_get_drvinfo, | |
1173 | .get_settings = pegasus_get_settings, | |
1174 | .set_settings = pegasus_set_settings, | |
1175 | .nway_reset = pegasus_nway_reset, | |
1176 | .get_link = pegasus_get_link, | |
1177 | .get_msglevel = pegasus_get_msglevel, | |
1178 | .set_msglevel = pegasus_set_msglevel, | |
1179 | .get_wol = pegasus_get_wol, | |
1180 | .set_wol = pegasus_set_wol, | |
1181 | }; | |
1182 | ||
1183 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
1184 | { | |
1185 | __u16 *data = (__u16 *) & rq->ifr_ifru; | |
1186 | pegasus_t *pegasus = netdev_priv(net); | |
1187 | int res; | |
1188 | ||
1189 | switch (cmd) { | |
1190 | case SIOCDEVPRIVATE: | |
1191 | data[0] = pegasus->phy; | |
1192 | case SIOCDEVPRIVATE + 1: | |
1193 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); | |
1194 | res = 0; | |
1195 | break; | |
1196 | case SIOCDEVPRIVATE + 2: | |
1197 | if (!capable(CAP_NET_ADMIN)) | |
1198 | return -EPERM; | |
1199 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); | |
1200 | res = 0; | |
1201 | break; | |
1202 | default: | |
1203 | res = -EOPNOTSUPP; | |
1204 | } | |
1205 | return res; | |
1206 | } | |
1207 | ||
1208 | static void pegasus_set_multicast(struct net_device *net) | |
1209 | { | |
1210 | pegasus_t *pegasus = netdev_priv(net); | |
1211 | ||
1212 | if (net->flags & IFF_PROMISC) { | |
1213 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; | |
1214 | if (netif_msg_link(pegasus)) | |
1215 | pr_info("%s: Promiscuous mode enabled.\n", net->name); | |
ae0a97bf | 1216 | } else if (net->mc_count || |
1da177e4 LT |
1217 | (net->flags & IFF_ALLMULTI)) { |
1218 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; | |
1219 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1220 | if (netif_msg_link(pegasus)) | |
1221 | pr_info("%s: set allmulti\n", net->name); | |
1222 | } else { | |
1223 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; | |
1224 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1225 | } | |
1226 | ||
1227 | pegasus->flags |= ETH_REGS_CHANGE; | |
7d12e780 | 1228 | ctrl_callback(pegasus->ctrl_urb); |
1da177e4 LT |
1229 | } |
1230 | ||
1231 | static __u8 mii_phy_probe(pegasus_t * pegasus) | |
1232 | { | |
1233 | int i; | |
1234 | __u16 tmp; | |
1235 | ||
1236 | for (i = 0; i < 32; i++) { | |
1237 | read_mii_word(pegasus, i, MII_BMSR, &tmp); | |
1238 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) | |
1239 | continue; | |
1240 | else | |
1241 | return i; | |
1242 | } | |
1243 | ||
1244 | return 0xff; | |
1245 | } | |
1246 | ||
1247 | static inline void setup_pegasus_II(pegasus_t * pegasus) | |
1248 | { | |
1249 | __u8 data = 0xa5; | |
1da177e4 | 1250 | |
4a1728a2 PM |
1251 | set_register(pegasus, Reg1d, 0); |
1252 | set_register(pegasus, Reg7b, 1); | |
1da177e4 LT |
1253 | mdelay(100); |
1254 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) | |
4a1728a2 | 1255 | set_register(pegasus, Reg7b, 0); |
1da177e4 | 1256 | else |
4a1728a2 | 1257 | set_register(pegasus, Reg7b, 2); |
1da177e4 | 1258 | |
4a1728a2 PM |
1259 | set_register(pegasus, 0x83, data); |
1260 | get_registers(pegasus, 0x83, 1, &data); | |
1da177e4 LT |
1261 | |
1262 | if (data == 0xa5) { | |
1263 | pegasus->chip = 0x8513; | |
1264 | } else { | |
1265 | pegasus->chip = 0; | |
1266 | } | |
1267 | ||
4a1728a2 PM |
1268 | set_register(pegasus, 0x80, 0xc0); |
1269 | set_register(pegasus, 0x83, 0xff); | |
1270 | set_register(pegasus, 0x84, 0x01); | |
1da177e4 LT |
1271 | |
1272 | if (pegasus->features & HAS_HOME_PNA && mii_mode) | |
4a1728a2 | 1273 | set_register(pegasus, Reg81, 6); |
1da177e4 | 1274 | else |
4a1728a2 | 1275 | set_register(pegasus, Reg81, 2); |
1da177e4 LT |
1276 | } |
1277 | ||
1278 | ||
1279 | static struct workqueue_struct *pegasus_workqueue = NULL; | |
1280 | #define CARRIER_CHECK_DELAY (2 * HZ) | |
1281 | ||
c4028958 | 1282 | static void check_carrier(struct work_struct *work) |
1da177e4 | 1283 | { |
c4028958 | 1284 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
1da177e4 LT |
1285 | set_carrier(pegasus->net); |
1286 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { | |
1287 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1288 | CARRIER_CHECK_DELAY); | |
1289 | } | |
1290 | } | |
1291 | ||
1292 | static int pegasus_probe(struct usb_interface *intf, | |
1293 | const struct usb_device_id *id) | |
1294 | { | |
1295 | struct usb_device *dev = interface_to_usbdev(intf); | |
1296 | struct net_device *net; | |
1297 | pegasus_t *pegasus; | |
1298 | int dev_index = id - pegasus_ids; | |
1299 | int res = -ENOMEM; | |
1300 | ||
1301 | usb_get_dev(dev); | |
1302 | net = alloc_etherdev(sizeof(struct pegasus)); | |
1303 | if (!net) { | |
1304 | dev_err(&intf->dev, "can't allocate %s\n", "device"); | |
1305 | goto out; | |
1306 | } | |
1307 | ||
1308 | pegasus = netdev_priv(net); | |
1da177e4 LT |
1309 | pegasus->dev_index = dev_index; |
1310 | init_waitqueue_head(&pegasus->ctrl_wait); | |
1311 | ||
1312 | if (!alloc_urbs(pegasus)) { | |
1313 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); | |
1314 | goto out1; | |
1315 | } | |
1316 | ||
1317 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); | |
1318 | ||
c4028958 | 1319 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
1da177e4 LT |
1320 | |
1321 | pegasus->intf = intf; | |
1322 | pegasus->usb = dev; | |
1323 | pegasus->net = net; | |
1da177e4 LT |
1324 | net->open = pegasus_open; |
1325 | net->stop = pegasus_close; | |
1326 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; | |
1327 | net->tx_timeout = pegasus_tx_timeout; | |
1328 | net->do_ioctl = pegasus_ioctl; | |
1329 | net->hard_start_xmit = pegasus_start_xmit; | |
1330 | net->set_multicast_list = pegasus_set_multicast; | |
1331 | net->get_stats = pegasus_netdev_stats; | |
1332 | SET_ETHTOOL_OPS(net, &ops); | |
1333 | pegasus->mii.dev = net; | |
1334 | pegasus->mii.mdio_read = mdio_read; | |
1335 | pegasus->mii.mdio_write = mdio_write; | |
1336 | pegasus->mii.phy_id_mask = 0x1f; | |
1337 | pegasus->mii.reg_num_mask = 0x1f; | |
1338 | spin_lock_init(&pegasus->rx_pool_lock); | |
1339 | pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV | |
1340 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); | |
1341 | ||
1342 | pegasus->features = usb_dev_id[dev_index].private; | |
1343 | get_interrupt_interval(pegasus); | |
1344 | if (reset_mac(pegasus)) { | |
1345 | dev_err(&intf->dev, "can't reset MAC\n"); | |
1346 | res = -EIO; | |
1347 | goto out2; | |
1348 | } | |
1349 | set_ethernet_addr(pegasus); | |
1350 | fill_skb_pool(pegasus); | |
1351 | if (pegasus->features & PEGASUS_II) { | |
1352 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); | |
1353 | setup_pegasus_II(pegasus); | |
1354 | } | |
1355 | pegasus->phy = mii_phy_probe(pegasus); | |
1356 | if (pegasus->phy == 0xff) { | |
1357 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); | |
1358 | pegasus->phy = 1; | |
1359 | } | |
1360 | pegasus->mii.phy_id = pegasus->phy; | |
1361 | usb_set_intfdata(intf, pegasus); | |
1362 | SET_NETDEV_DEV(net, &intf->dev); | |
1363 | pegasus_reset_wol(net); | |
1364 | res = register_netdev(net); | |
1365 | if (res) | |
1366 | goto out3; | |
1367 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1368 | CARRIER_CHECK_DELAY); | |
1369 | ||
1370 | dev_info(&intf->dev, "%s, %s, %02x:%02x:%02x:%02x:%02x:%02x\n", | |
1371 | net->name, | |
1372 | usb_dev_id[dev_index].name, | |
1373 | net->dev_addr [0], net->dev_addr [1], | |
1374 | net->dev_addr [2], net->dev_addr [3], | |
1375 | net->dev_addr [4], net->dev_addr [5]); | |
1376 | return 0; | |
1377 | ||
1378 | out3: | |
1379 | usb_set_intfdata(intf, NULL); | |
1380 | free_skb_pool(pegasus); | |
1381 | out2: | |
1382 | free_all_urbs(pegasus); | |
1383 | out1: | |
1384 | free_netdev(net); | |
1385 | out: | |
1386 | usb_put_dev(dev); | |
1387 | return res; | |
1388 | } | |
1389 | ||
1390 | static void pegasus_disconnect(struct usb_interface *intf) | |
1391 | { | |
1392 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1393 | ||
1394 | usb_set_intfdata(intf, NULL); | |
1395 | if (!pegasus) { | |
1396 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); | |
1397 | return; | |
1398 | } | |
1399 | ||
1400 | pegasus->flags |= PEGASUS_UNPLUG; | |
1401 | cancel_delayed_work(&pegasus->carrier_check); | |
1402 | unregister_netdev(pegasus->net); | |
1403 | usb_put_dev(interface_to_usbdev(intf)); | |
a85a46f2 | 1404 | unlink_all_urbs(pegasus); |
1da177e4 LT |
1405 | free_all_urbs(pegasus); |
1406 | free_skb_pool(pegasus); | |
4c13eb66 | 1407 | if (pegasus->rx_skb != NULL) { |
1da177e4 | 1408 | dev_kfree_skb(pegasus->rx_skb); |
4c13eb66 ACM |
1409 | pegasus->rx_skb = NULL; |
1410 | } | |
1da177e4 LT |
1411 | free_netdev(pegasus->net); |
1412 | } | |
1413 | ||
27d72e85 | 1414 | static int pegasus_suspend (struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1415 | { |
1416 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1417 | ||
1418 | netif_device_detach (pegasus->net); | |
7e713b82 | 1419 | cancel_delayed_work(&pegasus->carrier_check); |
27d72e85 | 1420 | if (netif_running(pegasus->net)) { |
27d72e85 DB |
1421 | usb_kill_urb(pegasus->rx_urb); |
1422 | usb_kill_urb(pegasus->intr_urb); | |
1423 | } | |
1da177e4 LT |
1424 | return 0; |
1425 | } | |
1426 | ||
1427 | static int pegasus_resume (struct usb_interface *intf) | |
1428 | { | |
1429 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1430 | ||
1431 | netif_device_attach (pegasus->net); | |
27d72e85 DB |
1432 | if (netif_running(pegasus->net)) { |
1433 | pegasus->rx_urb->status = 0; | |
1434 | pegasus->rx_urb->actual_length = 0; | |
7d12e780 | 1435 | read_bulk_callback(pegasus->rx_urb); |
27d72e85 DB |
1436 | |
1437 | pegasus->intr_urb->status = 0; | |
1438 | pegasus->intr_urb->actual_length = 0; | |
7d12e780 | 1439 | intr_callback(pegasus->intr_urb); |
27d72e85 | 1440 | } |
7e713b82 DB |
1441 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
1442 | CARRIER_CHECK_DELAY); | |
1da177e4 LT |
1443 | return 0; |
1444 | } | |
1445 | ||
1446 | static struct usb_driver pegasus_driver = { | |
1447 | .name = driver_name, | |
1448 | .probe = pegasus_probe, | |
1449 | .disconnect = pegasus_disconnect, | |
1450 | .id_table = pegasus_ids, | |
1451 | .suspend = pegasus_suspend, | |
1452 | .resume = pegasus_resume, | |
1453 | }; | |
1454 | ||
a4f81a61 Y |
1455 | static void parse_id(char *id) |
1456 | { | |
1457 | unsigned int vendor_id=0, device_id=0, flags=0, i=0; | |
1458 | char *token, *name=NULL; | |
1459 | ||
1460 | if ((token = strsep(&id, ":")) != NULL) | |
1461 | name = token; | |
1462 | /* name now points to a null terminated string*/ | |
1463 | if ((token = strsep(&id, ":")) != NULL) | |
1464 | vendor_id = simple_strtoul(token, NULL, 16); | |
1465 | if ((token = strsep(&id, ":")) != NULL) | |
1466 | device_id = simple_strtoul(token, NULL, 16); | |
1467 | flags = simple_strtoul(id, NULL, 16); | |
1468 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", | |
1469 | driver_name, name, vendor_id, device_id, flags); | |
1470 | ||
1471 | if (vendor_id > 0x10000 || vendor_id == 0) | |
1472 | return; | |
1473 | if (device_id > 0x10000 || device_id == 0) | |
1474 | return; | |
1475 | ||
1476 | for (i=0; usb_dev_id[i].name; i++); | |
1477 | usb_dev_id[i].name = name; | |
1478 | usb_dev_id[i].vendor = vendor_id; | |
1479 | usb_dev_id[i].device = device_id; | |
1480 | usb_dev_id[i].private = flags; | |
1481 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1482 | pegasus_ids[i].idVendor = vendor_id; | |
1483 | pegasus_ids[i].idProduct = device_id; | |
1484 | } | |
1485 | ||
1da177e4 LT |
1486 | static int __init pegasus_init(void) |
1487 | { | |
1488 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); | |
a4f81a61 Y |
1489 | if (devid) |
1490 | parse_id(devid); | |
1da177e4 LT |
1491 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); |
1492 | if (!pegasus_workqueue) | |
1493 | return -ENOMEM; | |
1494 | return usb_register(&pegasus_driver); | |
1495 | } | |
1496 | ||
1497 | static void __exit pegasus_exit(void) | |
1498 | { | |
1499 | destroy_workqueue(pegasus_workqueue); | |
1500 | usb_deregister(&pegasus_driver); | |
1501 | } | |
1502 | ||
1503 | module_init(pegasus_init); | |
1504 | module_exit(pegasus_exit); |