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[PATCH] USB: URB_ASYNC_UNLINK flag removed from the kernel
[deliverable/linux.git] / drivers / usb / net / pegasus.c
CommitLineData
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
31#undef DEBUG
32
33#include <linux/sched.h>
34#include <linux/slab.h>
35#include <linux/init.h>
36#include <linux/delay.h>
37#include <linux/netdevice.h>
38#include <linux/etherdevice.h>
39#include <linux/ethtool.h>
40#include <linux/mii.h>
41#include <linux/usb.h>
42#include <linux/module.h>
43#include <asm/byteorder.h>
44#include <asm/uaccess.h>
45#include "pegasus.h"
46
47/*
48 * Version Information
49 */
50#define DRIVER_VERSION "v0.6.12 (2005/01/13)"
51#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
52#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
53
54static const char driver_name[] = "pegasus";
55
56#undef PEGASUS_WRITE_EEPROM
57#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
58 BMSR_100FULL | BMSR_ANEGCAPABLE)
59
60static int loopback = 0;
61static int mii_mode = 0;
1da177e4
LT		 62
63static struct usb_eth_dev usb_dev_id[] = {
64#define PEGASUS_DEV(pn, vid, pid, flags) \
65 {.name = pn, .vendor = vid, .device = pid, .private = flags},
66#include "pegasus.h"
67#undef PEGASUS_DEV
68 {NULL, 0, 0, 0}
69};
70
71static 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
76 {}
77};
78
79MODULE_AUTHOR(DRIVER_AUTHOR);
80MODULE_DESCRIPTION(DRIVER_DESC);
81MODULE_LICENSE("GPL");
82module_param(loopback, bool, 0);
83module_param(mii_mode, bool, 0);
84MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
85MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
86
87/* use ethtool to change the level for any given device */
88static int msg_level = -1;
89module_param (msg_level, int, 0);
90MODULE_PARM_DESC (msg_level, "Override default message level");
91
92MODULE_DEVICE_TABLE(usb, pegasus_ids);
93
94static int update_eth_regs_async(pegasus_t *);
95/* Aargh!!! I _really_ hate such tweaks */
96static void ctrl_callback(struct urb *urb, struct pt_regs *regs)
97{
98 pegasus_t *pegasus = urb->context;
99
100 if (!pegasus)
101 return;
102
103 switch (urb->status) {
104 case 0:
105 if (pegasus->flags & ETH_REGS_CHANGE) {
106 pegasus->flags &= ~ETH_REGS_CHANGE;
107 pegasus->flags |= ETH_REGS_CHANGED;
108 update_eth_regs_async(pegasus);
109 return;
110 }
111 break;
112 case -EINPROGRESS:
113 return;
114 case -ENOENT:
115 break;
116 default:
117 if (netif_msg_drv(pegasus))
118 dev_err(&pegasus->intf->dev, "%s, status %d\n",
119 __FUNCTION__, urb->status);
120 }
121 pegasus->flags &= ~ETH_REGS_CHANGED;
122 wake_up(&pegasus->ctrl_wait);
123}
124
125static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
126 void *data)
127{
128 int ret;
129 char *buffer;
130 DECLARE_WAITQUEUE(wait, current);
131
132 buffer = kmalloc(size, GFP_KERNEL);
133 if (!buffer) {
134 if (netif_msg_drv(pegasus))
135 dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
136 __FUNCTION__);
137 return -ENOMEM;
138 }
139 add_wait_queue(&pegasus->ctrl_wait, &wait);
140 set_current_state(TASK_UNINTERRUPTIBLE);
141 while (pegasus->flags & ETH_REGS_CHANGED)
142 schedule();
143 remove_wait_queue(&pegasus->ctrl_wait, &wait);
144 set_current_state(TASK_RUNNING);
145
146 pegasus->dr.bRequestType = PEGASUS_REQT_READ;
147 pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS;
148 pegasus->dr.wValue = cpu_to_le16(0);
149 pegasus->dr.wIndex = cpu_to_le16p(&indx);
150 pegasus->dr.wLength = cpu_to_le16p(&size);
151 pegasus->ctrl_urb->transfer_buffer_length = size;
152
153 usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
154 usb_rcvctrlpipe(pegasus->usb, 0),
155 (char *) &pegasus->dr,
156 buffer, size, ctrl_callback, pegasus);
157
158 add_wait_queue(&pegasus->ctrl_wait, &wait);
159 set_current_state(TASK_UNINTERRUPTIBLE);
160
161 /* using ATOMIC, we'd never wake up if we slept */
162 if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
163 if (netif_msg_drv(pegasus))
164 dev_err(&pegasus->intf->dev, "%s, status %d\n",
165 __FUNCTION__, ret);
166 goto out;
167 }
168
169 schedule();
170out:
171 remove_wait_queue(&pegasus->ctrl_wait, &wait);
172 memcpy(data, buffer, size);
173 kfree(buffer);
174
175 return ret;
176}
177
178static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
179 void *data)
180{
181 int ret;
182 char *buffer;
183 DECLARE_WAITQUEUE(wait, current);
184
185 buffer = kmalloc(size, GFP_KERNEL);
186 if (!buffer) {
187 if (netif_msg_drv(pegasus))
188 dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
189 __FUNCTION__);
190 return -ENOMEM;
191 }
192 memcpy(buffer, data, size);
193
194 add_wait_queue(&pegasus->ctrl_wait, &wait);
195 set_current_state(TASK_UNINTERRUPTIBLE);
196 while (pegasus->flags & ETH_REGS_CHANGED)
197 schedule();
198 remove_wait_queue(&pegasus->ctrl_wait, &wait);
199 set_current_state(TASK_RUNNING);
200
201 pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
202 pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
203 pegasus->dr.wValue = cpu_to_le16(0);
204 pegasus->dr.wIndex = cpu_to_le16p(&indx);
205 pegasus->dr.wLength = cpu_to_le16p(&size);
206 pegasus->ctrl_urb->transfer_buffer_length = size;
207
208 usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
209 usb_sndctrlpipe(pegasus->usb, 0),
210 (char *) &pegasus->dr,
211 buffer, size, ctrl_callback, pegasus);
212
213 add_wait_queue(&pegasus->ctrl_wait, &wait);
214 set_current_state(TASK_UNINTERRUPTIBLE);
215
216 if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
217 if (netif_msg_drv(pegasus))
218 dev_err(&pegasus->intf->dev, "%s, status %d\n",
219 __FUNCTION__, ret);
220 goto out;
221 }
222
223 schedule();
224out:
225 remove_wait_queue(&pegasus->ctrl_wait, &wait);
226 kfree(buffer);
227
228 return ret;
229}
230
231static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
232{
233 int ret;
234 char *tmp;
235 DECLARE_WAITQUEUE(wait, current);
236
237 tmp = kmalloc(1, GFP_KERNEL);
238 if (!tmp) {
239 if (netif_msg_drv(pegasus))
240 dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
241 __FUNCTION__);
242 return -ENOMEM;
243 }
244 memcpy(tmp, &data, 1);
245 add_wait_queue(&pegasus->ctrl_wait, &wait);
246 set_current_state(TASK_UNINTERRUPTIBLE);
247 while (pegasus->flags & ETH_REGS_CHANGED)
248 schedule();
249 remove_wait_queue(&pegasus->ctrl_wait, &wait);
250 set_current_state(TASK_RUNNING);
251
252 pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
253 pegasus->dr.bRequest = PEGASUS_REQ_SET_REG;
254 pegasus->dr.wValue = cpu_to_le16(data);
255 pegasus->dr.wIndex = cpu_to_le16p(&indx);
256 pegasus->dr.wLength = cpu_to_le16(1);
257 pegasus->ctrl_urb->transfer_buffer_length = 1;
258
259 usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
260 usb_sndctrlpipe(pegasus->usb, 0),
261 (char *) &pegasus->dr,
262 &tmp, 1, ctrl_callback, pegasus);
263
264 add_wait_queue(&pegasus->ctrl_wait, &wait);
265 set_current_state(TASK_UNINTERRUPTIBLE);
266
267 if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
268 if (netif_msg_drv(pegasus))
269 dev_err(&pegasus->intf->dev, "%s, status %d\n",
270 __FUNCTION__, ret);
271 goto out;
272 }
273
274 schedule();
275out:
276 remove_wait_queue(&pegasus->ctrl_wait, &wait);
277 kfree(tmp);
278
279 return ret;
280}
281
282static int update_eth_regs_async(pegasus_t * pegasus)
283{
284 int ret;
285
286 pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
287 pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
288 pegasus->dr.wValue = 0;
289 pegasus->dr.wIndex = cpu_to_le16(EthCtrl0);
290 pegasus->dr.wLength = cpu_to_le16(3);
291 pegasus->ctrl_urb->transfer_buffer_length = 3;
292
293 usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
294 usb_sndctrlpipe(pegasus->usb, 0),
295 (char *) &pegasus->dr,
296 pegasus->eth_regs, 3, ctrl_callback, pegasus);
297
298 if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC)))
299 if (netif_msg_drv(pegasus))
300 dev_err(&pegasus->intf->dev, "%s, status %d\n",
301 __FUNCTION__, ret);
302
303 return ret;
304}
305
306static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
307{
308 int i;
309 __u8 data[4] = { phy, 0, 0, indx };
310 __le16 regdi;
311 int ret;
312
313 ret = set_register(pegasus, PhyCtrl, 0);
314 ret = set_registers(pegasus, PhyAddr, sizeof (data), data);
315 ret = set_register(pegasus, PhyCtrl, (indx | PHY_READ));
316 for (i = 0; i < REG_TIMEOUT; i++) {
317 ret = get_registers(pegasus, PhyCtrl, 1, data);
318 if (data[0] & PHY_DONE)
319 break;
320 }
321 if (i < REG_TIMEOUT) {
322 ret = get_registers(pegasus, PhyData, 2, &regdi);
323 *regd = le16_to_cpu(regdi);
324 return 1;
325 }
326 if (netif_msg_drv(pegasus))
327 dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
328
329 return 0;
330}
331
332static int mdio_read(struct net_device *dev, int phy_id, int loc)
333{
334 pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev);
335 u16 res;
336
337 read_mii_word(pegasus, phy_id, loc, &res);
338 return (int)res;
339}
340
341static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd)
342{
343 int i;
344 __u8 data[4] = { phy, 0, 0, indx };
345 int ret;
346
347 data[1] = (u8) regd;
348 data[2] = (u8) (regd >> 8);
349 ret = set_register(pegasus, PhyCtrl, 0);
350 ret = set_registers(pegasus, PhyAddr, sizeof(data), data);
351 ret = set_register(pegasus, PhyCtrl, (indx | PHY_WRITE));
352 for (i = 0; i < REG_TIMEOUT; i++) {
353 ret = get_registers(pegasus, PhyCtrl, 1, data);
354 if (data[0] & PHY_DONE)
355 break;
356 }
357 if (i < REG_TIMEOUT)
358 return 0;
359
360 if (netif_msg_drv(pegasus))
361 dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
362 return 1;
363}
364
365static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
366{
367 pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev);
368
369 write_mii_word(pegasus, phy_id, loc, val);
370}
371
372static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
373{
374 int i;
375 __u8 tmp;
376 __le16 retdatai;
377 int ret;
378
379 ret = set_register(pegasus, EpromCtrl, 0);
380 ret = set_register(pegasus, EpromOffset, index);
381 ret = set_register(pegasus, EpromCtrl, EPROM_READ);
382
383 for (i = 0; i < REG_TIMEOUT; i++) {
384 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
385 if (tmp & EPROM_DONE)
386 break;
387 }
388 if (i < REG_TIMEOUT) {
389 ret = get_registers(pegasus, EpromData, 2, &retdatai);
390 *retdata = le16_to_cpu(retdatai);
391 return 0;
392 }
393
394 if (netif_msg_drv(pegasus))
395 dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
396 return -1;
397}
398
399#ifdef PEGASUS_WRITE_EEPROM
400static inline void enable_eprom_write(pegasus_t * pegasus)
401{
402 __u8 tmp;
403 int ret;
404
405 ret = get_registers(pegasus, EthCtrl2, 1, &tmp);
406 ret = set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
407}
408
409static inline void disable_eprom_write(pegasus_t * pegasus)
410{
411 __u8 tmp;
412 int ret;
413
414 ret = get_registers(pegasus, EthCtrl2, 1, &tmp);
415 ret = set_register(pegasus, EpromCtrl, 0);
416 ret = set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
417}
418
419static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
420{
421 int i;
422 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
423 int ret;
424
425 ret = set_registers(pegasus, EpromOffset, 4, d);
426 enable_eprom_write(pegasus);
427 ret = set_register(pegasus, EpromOffset, index);
428 ret = set_registers(pegasus, EpromData, 2, &data);
429 ret = set_register(pegasus, EpromCtrl, EPROM_WRITE);
430
431 for (i = 0; i < REG_TIMEOUT; i++) {
432 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
433 if (tmp & EPROM_DONE)
434 break;
435 }
436 disable_eprom_write(pegasus);
437 if (i < REG_TIMEOUT)
438 return 0;
439 if (netif_msg_drv(pegasus))
440 dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__);
441 return -1;
442}
443#endif /* PEGASUS_WRITE_EEPROM */
444
445static inline void get_node_id(pegasus_t * pegasus, __u8 * id)
446{
447 int i;
448 __u16 w16;
449
450 for (i = 0; i < 3; i++) {
451 read_eprom_word(pegasus, i, &w16);
452 ((__le16 *) id)[i] = cpu_to_le16p(&w16);
453 }
454}
455
456static void set_ethernet_addr(pegasus_t * pegasus)
457{
458 __u8 node_id[6];
459 int ret;
460
461 get_node_id(pegasus, node_id);
462 ret = set_registers(pegasus, EthID, sizeof (node_id), node_id);
463 memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id));
464}
465
466static inline int reset_mac(pegasus_t * pegasus)
467{
468 __u8 data = 0x8;
469 int i;
470 int ret;
471
472 ret = set_register(pegasus, EthCtrl1, data);
473 for (i = 0; i < REG_TIMEOUT; i++) {
474 ret = get_registers(pegasus, EthCtrl1, 1, &data);
475 if (~data & 0x08) {
476 if (loopback & 1)
477 break;
478 if (mii_mode && (pegasus->features & HAS_HOME_PNA))
479 ret = set_register(pegasus, Gpio1, 0x34);
480 else
481 ret = set_register(pegasus, Gpio1, 0x26);
482 ret = set_register(pegasus, Gpio0, pegasus->features);
483 ret = set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
484 break;
485 }
486 }
487 if (i == REG_TIMEOUT)
488 return 1;
489
490 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
491 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
492 ret = set_register(pegasus, Gpio0, 0x24);
493 ret = set_register(pegasus, Gpio0, 0x26);
494 }
495 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
496 __u16 auxmode;
497 read_mii_word(pegasus, 3, 0x1b, &auxmode);
498 write_mii_word(pegasus, 3, 0x1b, auxmode | 4);
499 }
500
501 return 0;
502}
503
504static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
505{
506 __u16 linkpart;
507 __u8 data[4];
508 pegasus_t *pegasus = netdev_priv(dev);
509 int ret;
510
511 read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
512 data[0] = 0xc9;
513 data[1] = 0;
514 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
515 data[1] |= 0x20; /* set full duplex */
516 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
517 data[1] |= 0x10; /* set 100 Mbps */
518 if (mii_mode)
519 data[1] = 0;
520 data[2] = (loopback & 1) ? 0x09 : 0x01;
521
522 memcpy(pegasus->eth_regs, data, sizeof (data));
523 ret = set_registers(pegasus, EthCtrl0, 3, data);
524
525 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
526 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
527 u16 auxmode;
528 read_mii_word(pegasus, 0, 0x1b, &auxmode);
529 write_mii_word(pegasus, 0, 0x1b, auxmode | 4);
530 }
531
532 return 0;
533}
534
535static void fill_skb_pool(pegasus_t * pegasus)
536{
537 int i;
538
539 for (i = 0; i < RX_SKBS; i++) {
540 if (pegasus->rx_pool[i])
541 continue;
542 pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2);
543 /*
544 ** we give up if the allocation fail. the tasklet will be
545 ** rescheduled again anyway...
546 */
547 if (pegasus->rx_pool[i] == NULL)
548 return;
549 pegasus->rx_pool[i]->dev = pegasus->net;
550 skb_reserve(pegasus->rx_pool[i], 2);
551 }
552}
553
554static void free_skb_pool(pegasus_t * pegasus)
555{
556 int i;
557
558 for (i = 0; i < RX_SKBS; i++) {
559 if (pegasus->rx_pool[i]) {
560 dev_kfree_skb(pegasus->rx_pool[i]);
561 pegasus->rx_pool[i] = NULL;
562 }
563 }
564}
565
566static inline struct sk_buff *pull_skb(pegasus_t * pegasus)
567{
568 int i;
569 struct sk_buff *skb;
570
571 for (i = 0; i < RX_SKBS; i++) {
572 if (likely(pegasus->rx_pool[i] != NULL)) {
573 skb = pegasus->rx_pool[i];
574 pegasus->rx_pool[i] = NULL;
575 return skb;
576 }
577 }
578 return NULL;
579}
580
581static void read_bulk_callback(struct urb *urb, struct pt_regs *regs)
582{
583 pegasus_t *pegasus = urb->context;
584 struct net_device *net;
585 int rx_status, count = urb->actual_length;
586 u8 *buf = urb->transfer_buffer;
587 __u16 pkt_len;
588
589 if (!pegasus)
590 return;
591
592 net = pegasus->net;
593 if (!netif_device_present(net) || !netif_running(net))
594 return;
595
596 switch (urb->status) {
597 case 0:
598 break;
599 case -ETIMEDOUT:
600 if (netif_msg_rx_err(pegasus))
601 pr_debug("%s: reset MAC\n", net->name);
602 pegasus->flags &= ~PEGASUS_RX_BUSY;
603 break;
604 case -EPIPE: /* stall, or disconnect from TT */
605 /* FIXME schedule work to clear the halt */
606 if (netif_msg_rx_err(pegasus))
607 printk(KERN_WARNING "%s: no rx stall recovery\n",
608 net->name);
609 return;
610 case -ENOENT:
611 case -ECONNRESET:
612 case -ESHUTDOWN:
613 if (netif_msg_ifdown(pegasus))
614 pr_debug("%s: rx unlink, %d\n", net->name, urb->status);
615 return;
616 default:
617 if (netif_msg_rx_err(pegasus))
618 pr_debug("%s: RX status %d\n", net->name, urb->status);
619 goto goon;
620 }
621
622 if (!count || count < 4)
623 goto goon;
624
625 rx_status = buf[count - 2];
626 if (rx_status & 0x1e) {
627 if (netif_msg_rx_err(pegasus))
628 pr_debug("%s: RX packet error %x\n",
629 net->name, rx_status);
630 pegasus->stats.rx_errors++;
631 if (rx_status & 0x06) // long or runt
632 pegasus->stats.rx_length_errors++;
633 if (rx_status & 0x08)
634 pegasus->stats.rx_crc_errors++;
635 if (rx_status & 0x10) // extra bits
636 pegasus->stats.rx_frame_errors++;
637 goto goon;
638 }
639 if (pegasus->chip == 0x8513) {
640 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
641 pkt_len &= 0x0fff;
642 pegasus->rx_skb->data += 2;
643 } else {
644 pkt_len = buf[count - 3] << 8;
645 pkt_len += buf[count - 4];
646 pkt_len &= 0xfff;
647 pkt_len -= 8;
648 }
649
650 /*
651 * at this point we are sure pegasus->rx_skb != NULL
652 * so we go ahead and pass up the packet.
653 */
654 skb_put(pegasus->rx_skb, pkt_len);
655 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
656 netif_rx(pegasus->rx_skb);
657 pegasus->stats.rx_packets++;
658 pegasus->stats.rx_bytes += pkt_len;
659
660 if (pegasus->flags & PEGASUS_UNPLUG)
661 return;
662
663 spin_lock(&pegasus->rx_pool_lock);
664 pegasus->rx_skb = pull_skb(pegasus);
665 spin_unlock(&pegasus->rx_pool_lock);
666
667 if (pegasus->rx_skb == NULL)
668 goto tl_sched;
669goon:
670 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
671 usb_rcvbulkpipe(pegasus->usb, 1),
672 pegasus->rx_skb->data, PEGASUS_MTU + 8,
673 read_bulk_callback, pegasus);
674 if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) {
675 pegasus->flags |= PEGASUS_RX_URB_FAIL;
676 goto tl_sched;
677 } else {
678 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
679 }
680
681 return;
682
683tl_sched:
684 tasklet_schedule(&pegasus->rx_tl);
685}
686
687static void rx_fixup(unsigned long data)
688{
689 pegasus_t *pegasus;
690 unsigned long flags;
691
692 pegasus = (pegasus_t *) data;
693 if (pegasus->flags & PEGASUS_UNPLUG)
694 return;
695
696 spin_lock_irqsave(&pegasus->rx_pool_lock, flags);
697 fill_skb_pool(pegasus);
698 if (pegasus->flags & PEGASUS_RX_URB_FAIL)
699 if (pegasus->rx_skb)
700 goto try_again;
701 if (pegasus->rx_skb == NULL) {
702 pegasus->rx_skb = pull_skb(pegasus);
703 }
704 if (pegasus->rx_skb == NULL) {
705 if (netif_msg_rx_err(pegasus))
706 printk(KERN_WARNING "%s: low on memory\n",
707 pegasus->net->name);
708 tasklet_schedule(&pegasus->rx_tl);
709 goto done;
710 }
711 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
712 usb_rcvbulkpipe(pegasus->usb, 1),
713 pegasus->rx_skb->data, PEGASUS_MTU + 8,
714 read_bulk_callback, pegasus);
715try_again:
716 if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) {
717 pegasus->flags |= PEGASUS_RX_URB_FAIL;
718 tasklet_schedule(&pegasus->rx_tl);
719 } else {
720 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
721 }
722done:
723 spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags);
724}
725
726static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
727{
728 pegasus_t *pegasus = urb->context;
729 struct net_device *net = pegasus->net;
730
731 if (!pegasus)
732 return;
733
734 if (!netif_device_present(net) || !netif_running(net))
735 return;
736
737 switch (urb->status) {
738 case -EPIPE:
739 /* FIXME schedule_work() to clear the tx halt */
740 netif_stop_queue(net);
741 if (netif_msg_tx_err(pegasus))
742 printk(KERN_WARNING "%s: no tx stall recovery\n",
743 net->name);
744 return;
745 case -ENOENT:
746 case -ECONNRESET:
747 case -ESHUTDOWN:
748 if (netif_msg_ifdown(pegasus))
749 pr_debug("%s: tx unlink, %d\n", net->name, urb->status);
750 return;
751 default:
752 if (netif_msg_tx_err(pegasus))
753 pr_info("%s: TX status %d\n", net->name, urb->status);
754 /* FALL THROUGH */
755 case 0:
756 break;
757 }
758
759 net->trans_start = jiffies;
760 netif_wake_queue(net);
761}
762
763static void intr_callback(struct urb *urb, struct pt_regs *regs)
764{
765 pegasus_t *pegasus = urb->context;
766 struct net_device *net;
767 int status;
768
769 if (!pegasus)
770 return;
771 net = pegasus->net;
772
773 switch (urb->status) {
774 case 0:
775 break;
776 case -ECONNRESET: /* unlink */
777 case -ENOENT:
778 case -ESHUTDOWN:
779 return;
780 default:
781 /* some Pegasus-I products report LOTS of data
782 * toggle errors... avoid log spamming
783 */
784 if (netif_msg_timer(pegasus))
785 pr_debug("%s: intr status %d\n", net->name,
786 urb->status);
787 }
788
789 if (urb->actual_length >= 6) {
790 u8 * d = urb->transfer_buffer;
791
792 /* byte 0 == tx_status1, reg 2B */
793 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
794 |LATE_COL|JABBER_TIMEOUT)) {
795 pegasus->stats.tx_errors++;
796 if (d[0] & TX_UNDERRUN)
797 pegasus->stats.tx_fifo_errors++;
798 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
799 pegasus->stats.tx_aborted_errors++;
800 if (d[0] & LATE_COL)
801 pegasus->stats.tx_window_errors++;
802 }
803
804 /* d[5].LINK_STATUS lies on some adapters.
805 * d[0].NO_CARRIER kicks in only with failed TX.
806 * ... so monitoring with MII may be safest.
807 */
808 if (d[0] & NO_CARRIER)
809 netif_carrier_off(net);
810 else
811 netif_carrier_on(net);
812
813 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
814 pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
815 }
816
817 status = usb_submit_urb(urb, SLAB_ATOMIC);
818 if (status && netif_msg_timer(pegasus))
819 printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n",
820 net->name, status);
821}
822
823static void pegasus_tx_timeout(struct net_device *net)
824{
825 pegasus_t *pegasus = netdev_priv(net);
826 if (netif_msg_timer(pegasus))
827 printk(KERN_WARNING "%s: tx timeout\n", net->name);
1da177e4
LT		 828 usb_unlink_urb(pegasus->tx_urb);
829 pegasus->stats.tx_errors++;
830}
831
832static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net)
833{
834 pegasus_t *pegasus = netdev_priv(net);
835 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
836 int res;
837 __u16 l16 = skb->len;
838
839 netif_stop_queue(net);
840
841 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
842 memcpy(pegasus->tx_buff + 2, skb->data, skb->len);
843 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
844 usb_sndbulkpipe(pegasus->usb, 2),
845 pegasus->tx_buff, count,
846 write_bulk_callback, pegasus);
847 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
848 if (netif_msg_tx_err(pegasus))
849 printk(KERN_WARNING "%s: fail tx, %d\n",
850 net->name, res);
851 switch (res) {
852 case -EPIPE: /* stall, or disconnect from TT */
853 /* cleanup should already have been scheduled */
854 break;
855 case -ENODEV: /* disconnect() upcoming */
856 break;
857 default:
858 pegasus->stats.tx_errors++;
859 netif_start_queue(net);
860 }
861 } else {
862 pegasus->stats.tx_packets++;
863 pegasus->stats.tx_bytes += skb->len;
864 net->trans_start = jiffies;
865 }
866 dev_kfree_skb(skb);
867
868 return 0;
869}
870
871static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
872{
873 return &((pegasus_t *) netdev_priv(dev))->stats;
874}
875
876static inline void disable_net_traffic(pegasus_t * pegasus)
877{
878 int tmp = 0;
879 int ret;
880
881 ret = set_registers(pegasus, EthCtrl0, 2, &tmp);
882}
883
884static inline void get_interrupt_interval(pegasus_t * pegasus)
885{
886 __u8 data[2];
887
888 read_eprom_word(pegasus, 4, (__u16 *) data);
889 if (data[1] < 0x80) {
890 if (netif_msg_timer(pegasus))
891 dev_info(&pegasus->intf->dev,
892 "intr interval changed from %ums to %ums\n",
893 data[1], 0x80);
894 data[1] = 0x80;
895#ifdef PEGASUS_WRITE_EEPROM
896 write_eprom_word(pegasus, 4, *(__u16 *) data);
897#endif
898 }
899 pegasus->intr_interval = data[1];
900}
901
902static void set_carrier(struct net_device *net)
903{
904 pegasus_t *pegasus = netdev_priv(net);
905 u16 tmp;
906
907 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
908 return;
909 if (tmp & BMSR_LSTATUS)
910 netif_carrier_on(net);
911 else
912 netif_carrier_off(net);
913}
914
915static void free_all_urbs(pegasus_t * pegasus)
916{
917 usb_free_urb(pegasus->intr_urb);
918 usb_free_urb(pegasus->tx_urb);
919 usb_free_urb(pegasus->rx_urb);
920 usb_free_urb(pegasus->ctrl_urb);
921}
922
923static void unlink_all_urbs(pegasus_t * pegasus)
924{
925 usb_kill_urb(pegasus->intr_urb);
926 usb_kill_urb(pegasus->tx_urb);
927 usb_kill_urb(pegasus->rx_urb);
928 usb_kill_urb(pegasus->ctrl_urb);
929}
930
931static int alloc_urbs(pegasus_t * pegasus)
932{
933 pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
934 if (!pegasus->ctrl_urb) {
935 return 0;
936 }
937 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
938 if (!pegasus->rx_urb) {
939 usb_free_urb(pegasus->ctrl_urb);
940 return 0;
941 }
942 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
943 if (!pegasus->tx_urb) {
944 usb_free_urb(pegasus->rx_urb);
945 usb_free_urb(pegasus->ctrl_urb);
946 return 0;
947 }
948 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
949 if (!pegasus->intr_urb) {
950 usb_free_urb(pegasus->tx_urb);
951 usb_free_urb(pegasus->rx_urb);
952 usb_free_urb(pegasus->ctrl_urb);
953 return 0;
954 }
955
956 return 1;
957}
958
959static int pegasus_open(struct net_device *net)
960{
961 pegasus_t *pegasus = netdev_priv(net);
962 int res;
963
964 if (pegasus->rx_skb == NULL)
965 pegasus->rx_skb = pull_skb(pegasus);
966 /*
967 ** Note: no point to free the pool. it is empty :-)
968 */
969 if (!pegasus->rx_skb)
970 return -ENOMEM;
971
972 res = set_registers(pegasus, EthID, 6, net->dev_addr);
973
974 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
975 usb_rcvbulkpipe(pegasus->usb, 1),
976 pegasus->rx_skb->data, PEGASUS_MTU + 8,
977 read_bulk_callback, pegasus);
978 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
979 if (netif_msg_ifup(pegasus))
980 pr_debug("%s: failed rx_urb, %d", net->name, res);
981 goto exit;
982 }
983
984 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
985 usb_rcvintpipe(pegasus->usb, 3),
986 pegasus->intr_buff, sizeof (pegasus->intr_buff),
987 intr_callback, pegasus, pegasus->intr_interval);
988 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
989 if (netif_msg_ifup(pegasus))
990 pr_debug("%s: failed intr_urb, %d\n", net->name, res);
991 usb_kill_urb(pegasus->rx_urb);
992 goto exit;
993 }
994 if ((res = enable_net_traffic(net, pegasus->usb))) {
995 if (netif_msg_ifup(pegasus))
996 pr_debug("%s: can't enable_net_traffic() - %d\n",
997 net->name, res);
998 res = -EIO;
999 usb_kill_urb(pegasus->rx_urb);
1000 usb_kill_urb(pegasus->intr_urb);
1001 free_skb_pool(pegasus);
1002 goto exit;
1003 }
1004 set_carrier(net);
1005 netif_start_queue(net);
1006 if (netif_msg_ifup(pegasus))
1007 pr_debug("%s: open\n", net->name);
1008 res = 0;
1009exit:
1010 return res;
1011}
1012
1013static int pegasus_close(struct net_device *net)
1014{
1015 pegasus_t *pegasus = netdev_priv(net);
1016
1017 netif_stop_queue(net);
1018 if (!(pegasus->flags & PEGASUS_UNPLUG))
1019 disable_net_traffic(pegasus);
1020 tasklet_kill(&pegasus->rx_tl);
1021 unlink_all_urbs(pegasus);
1022
1023 return 0;
1024}
1025
1026static void pegasus_get_drvinfo(struct net_device *dev,
1027 struct ethtool_drvinfo *info)
1028{
1029 pegasus_t *pegasus = netdev_priv(dev);
1030 strncpy(info->driver, driver_name, sizeof (info->driver) - 1);
1031 strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1);
1032 usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info));
1033}
1034
1035/* also handles three patterns of some kind in hardware */
1036#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
1037
1038static void
1039pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1040{
1041 pegasus_t *pegasus = netdev_priv(dev);
1042
1043 wol->supported = WAKE_MAGIC | WAKE_PHY;
1044 wol->wolopts = pegasus->wolopts;
1045}
1046
1047static int
1048pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1049{
1050 pegasus_t *pegasus = netdev_priv(dev);
1051 u8 reg78 = 0x04;
1052
1053 if (wol->wolopts & ~WOL_SUPPORTED)
1054 return -EINVAL;
1055
1056 if (wol->wolopts & WAKE_MAGIC)
1057 reg78 |= 0x80;
1058 if (wol->wolopts & WAKE_PHY)
1059 reg78 |= 0x40;
1060 /* FIXME this 0x10 bit still needs to get set in the chip... */
1061 if (wol->wolopts)
1062 pegasus->eth_regs[0] |= 0x10;
1063 else
1064 pegasus->eth_regs[0] &= ~0x10;
1065 pegasus->wolopts = wol->wolopts;
1066 return set_register(pegasus, WakeupControl, reg78);
1067}
1068
1069static inline void pegasus_reset_wol(struct net_device *dev)
1070{
1071 struct ethtool_wolinfo wol;
1072
1073 memset(&wol, 0, sizeof wol);
1074 (void) pegasus_set_wol(dev, &wol);
1075}
1076
1077static int
1078pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1079{
1080 pegasus_t *pegasus;
1081
1082 if (in_atomic())
1083 return 0;
1084
1085 pegasus = netdev_priv(dev);
1086 mii_ethtool_gset(&pegasus->mii, ecmd);
1087
1088 return 0;
1089}
1090
1091static int
1092pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1093{
1094 pegasus_t *pegasus = netdev_priv(dev);
1095 return mii_ethtool_sset(&pegasus->mii, ecmd);
1096}
1097
1098static int pegasus_nway_reset(struct net_device *dev)
1099{
1100 pegasus_t *pegasus = netdev_priv(dev);
1101 return mii_nway_restart(&pegasus->mii);
1102}
1103
1104static u32 pegasus_get_link(struct net_device *dev)
1105{
1106 pegasus_t *pegasus = netdev_priv(dev);
1107 return mii_link_ok(&pegasus->mii);
1108}
1109
1110static u32 pegasus_get_msglevel(struct net_device *dev)
1111{
1112 pegasus_t *pegasus = netdev_priv(dev);
1113 return pegasus->msg_enable;
1114}
1115
1116static void pegasus_set_msglevel(struct net_device *dev, u32 v)
1117{
1118 pegasus_t *pegasus = netdev_priv(dev);
1119 pegasus->msg_enable = v;
1120}
1121
1122static struct ethtool_ops ops = {
1123 .get_drvinfo = pegasus_get_drvinfo,
1124 .get_settings = pegasus_get_settings,
1125 .set_settings = pegasus_set_settings,
1126 .nway_reset = pegasus_nway_reset,
1127 .get_link = pegasus_get_link,
1128 .get_msglevel = pegasus_get_msglevel,
1129 .set_msglevel = pegasus_set_msglevel,
1130 .get_wol = pegasus_get_wol,
1131 .set_wol = pegasus_set_wol,
1132};
1133
1134static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
1135{
1136 __u16 *data = (__u16 *) & rq->ifr_ifru;
1137 pegasus_t *pegasus = netdev_priv(net);
1138 int res;
1139
1140 switch (cmd) {
1141 case SIOCDEVPRIVATE:
1142 data[0] = pegasus->phy;
1143 case SIOCDEVPRIVATE + 1:
1144 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
1145 res = 0;
1146 break;
1147 case SIOCDEVPRIVATE + 2:
1148 if (!capable(CAP_NET_ADMIN))
1149 return -EPERM;
1150 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
1151 res = 0;
1152 break;
1153 default:
1154 res = -EOPNOTSUPP;
1155 }
1156 return res;
1157}
1158
1159static void pegasus_set_multicast(struct net_device *net)
1160{
1161 pegasus_t *pegasus = netdev_priv(net);
1162
1163 if (net->flags & IFF_PROMISC) {
1164 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
1165 if (netif_msg_link(pegasus))
1166 pr_info("%s: Promiscuous mode enabled.\n", net->name);
ae0a97bf 1167 } else if (net->mc_count ||
1da177e4
LT		 1168 (net->flags & IFF_ALLMULTI)) {
1169 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
1170 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1171 if (netif_msg_link(pegasus))
1172 pr_info("%s: set allmulti\n", net->name);
1173 } else {
1174 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
1175 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1176 }
1177
1178 pegasus->flags |= ETH_REGS_CHANGE;
1179 ctrl_callback(pegasus->ctrl_urb, NULL);
1180}
1181
1182static __u8 mii_phy_probe(pegasus_t * pegasus)
1183{
1184 int i;
1185 __u16 tmp;
1186
1187 for (i = 0; i < 32; i++) {
1188 read_mii_word(pegasus, i, MII_BMSR, &tmp);
1189 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
1190 continue;
1191 else
1192 return i;
1193 }
1194
1195 return 0xff;
1196}
1197
1198static inline void setup_pegasus_II(pegasus_t * pegasus)
1199{
1200 __u8 data = 0xa5;
1201 int ret;
1202
1203 ret = set_register(pegasus, Reg1d, 0);
1204 ret = set_register(pegasus, Reg7b, 1);
1205 mdelay(100);
1206 if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
1207 ret = set_register(pegasus, Reg7b, 0);
1208 else
1209 ret = set_register(pegasus, Reg7b, 2);
1210
1211 ret = set_register(pegasus, 0x83, data);
1212 ret = get_registers(pegasus, 0x83, 1, &data);
1213
1214 if (data == 0xa5) {
1215 pegasus->chip = 0x8513;
1216 } else {
1217 pegasus->chip = 0;
1218 }
1219
1220 ret = set_register(pegasus, 0x80, 0xc0);
1221 ret = set_register(pegasus, 0x83, 0xff);
1222 ret = set_register(pegasus, 0x84, 0x01);
1223
1224 if (pegasus->features & HAS_HOME_PNA && mii_mode)
1225 ret = set_register(pegasus, Reg81, 6);
1226 else
1227 ret = set_register(pegasus, Reg81, 2);
1228}
1229
1230
1231static struct workqueue_struct *pegasus_workqueue = NULL;
1232#define CARRIER_CHECK_DELAY (2 * HZ)
1233
1234static void check_carrier(void *data)
1235{
1236 pegasus_t *pegasus = data;
1237 set_carrier(pegasus->net);
1238 if (!(pegasus->flags & PEGASUS_UNPLUG)) {
1239 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1240 CARRIER_CHECK_DELAY);
1241 }
1242}
1243
1244static int pegasus_probe(struct usb_interface *intf,
1245 const struct usb_device_id *id)
1246{
1247 struct usb_device *dev = interface_to_usbdev(intf);
1248 struct net_device *net;
1249 pegasus_t *pegasus;
1250 int dev_index = id - pegasus_ids;
1251 int res = -ENOMEM;
1252
1253 usb_get_dev(dev);
1254 net = alloc_etherdev(sizeof(struct pegasus));
1255 if (!net) {
1256 dev_err(&intf->dev, "can't allocate %s\n", "device");
1257 goto out;
1258 }
1259
1260 pegasus = netdev_priv(net);
1261 memset(pegasus, 0, sizeof (struct pegasus));
1262 pegasus->dev_index = dev_index;
1263 init_waitqueue_head(&pegasus->ctrl_wait);
1264
1265 if (!alloc_urbs(pegasus)) {
1266 dev_err(&intf->dev, "can't allocate %s\n", "urbs");
1267 goto out1;
1268 }
1269
1270 tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
1271
1272 INIT_WORK(&pegasus->carrier_check, check_carrier, pegasus);
1273
1274 pegasus->intf = intf;
1275 pegasus->usb = dev;
1276 pegasus->net = net;
1277 SET_MODULE_OWNER(net);
1278 net->open = pegasus_open;
1279 net->stop = pegasus_close;
1280 net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
1281 net->tx_timeout = pegasus_tx_timeout;
1282 net->do_ioctl = pegasus_ioctl;
1283 net->hard_start_xmit = pegasus_start_xmit;
1284 net->set_multicast_list = pegasus_set_multicast;
1285 net->get_stats = pegasus_netdev_stats;
1286 SET_ETHTOOL_OPS(net, &ops);
1287 pegasus->mii.dev = net;
1288 pegasus->mii.mdio_read = mdio_read;
1289 pegasus->mii.mdio_write = mdio_write;
1290 pegasus->mii.phy_id_mask = 0x1f;
1291 pegasus->mii.reg_num_mask = 0x1f;
1292 spin_lock_init(&pegasus->rx_pool_lock);
1293 pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
1294 | NETIF_MSG_PROBE | NETIF_MSG_LINK);
1295
1296 pegasus->features = usb_dev_id[dev_index].private;
1297 get_interrupt_interval(pegasus);
1298 if (reset_mac(pegasus)) {
1299 dev_err(&intf->dev, "can't reset MAC\n");
1300 res = -EIO;
1301 goto out2;
1302 }
1303 set_ethernet_addr(pegasus);
1304 fill_skb_pool(pegasus);
1305 if (pegasus->features & PEGASUS_II) {
1306 dev_info(&intf->dev, "setup Pegasus II specific registers\n");
1307 setup_pegasus_II(pegasus);
1308 }
1309 pegasus->phy = mii_phy_probe(pegasus);
1310 if (pegasus->phy == 0xff) {
1311 dev_warn(&intf->dev, "can't locate MII phy, using default\n");
1312 pegasus->phy = 1;
1313 }
1314 pegasus->mii.phy_id = pegasus->phy;
1315 usb_set_intfdata(intf, pegasus);
1316 SET_NETDEV_DEV(net, &intf->dev);
1317 pegasus_reset_wol(net);
1318 res = register_netdev(net);
1319 if (res)
1320 goto out3;
1321 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1322 CARRIER_CHECK_DELAY);
1323
1324 dev_info(&intf->dev, "%s, %s, %02x:%02x:%02x:%02x:%02x:%02x\n",
1325 net->name,
1326 usb_dev_id[dev_index].name,
1327 net->dev_addr [0], net->dev_addr [1],
1328 net->dev_addr [2], net->dev_addr [3],
1329 net->dev_addr [4], net->dev_addr [5]);
1330 return 0;
1331
1332out3:
1333 usb_set_intfdata(intf, NULL);
1334 free_skb_pool(pegasus);
1335out2:
1336 free_all_urbs(pegasus);
1337out1:
1338 free_netdev(net);
1339out:
1340 usb_put_dev(dev);
1341 return res;
1342}
1343
1344static void pegasus_disconnect(struct usb_interface *intf)
1345{
1346 struct pegasus *pegasus = usb_get_intfdata(intf);
1347
1348 usb_set_intfdata(intf, NULL);
1349 if (!pegasus) {
1350 dev_dbg(&intf->dev, "unregistering non-bound device?\n");
1351 return;
1352 }
1353
1354 pegasus->flags |= PEGASUS_UNPLUG;
1355 cancel_delayed_work(&pegasus->carrier_check);
1356 unregister_netdev(pegasus->net);
1357 usb_put_dev(interface_to_usbdev(intf));
1358 free_all_urbs(pegasus);
1359 free_skb_pool(pegasus);
1360 if (pegasus->rx_skb)
1361 dev_kfree_skb(pegasus->rx_skb);
1362 free_netdev(pegasus->net);
1363}
1364
27d72e85 1365static int pegasus_suspend (struct usb_interface *intf, pm_message_t message)
1da177e4
LT		 1366{
1367 struct pegasus *pegasus = usb_get_intfdata(intf);
1368
1369 netif_device_detach (pegasus->net);
27d72e85
DB		 1370 if (netif_running(pegasus->net)) {
1371 cancel_delayed_work(&pegasus->carrier_check);
1372
1373 usb_kill_urb(pegasus->rx_urb);
1374 usb_kill_urb(pegasus->intr_urb);
1375 }
1376 intf->dev.power.power_state = PMSG_SUSPEND;
1da177e4
LT		 1377 return 0;
1378}
1379
1380static int pegasus_resume (struct usb_interface *intf)
1381{
1382 struct pegasus *pegasus = usb_get_intfdata(intf);
1383
27d72e85 1384 intf->dev.power.power_state = PMSG_ON;
1da177e4 1385 netif_device_attach (pegasus->net);
27d72e85
DB		 1386 if (netif_running(pegasus->net)) {
1387 pegasus->rx_urb->status = 0;
1388 pegasus->rx_urb->actual_length = 0;
9727d04a 1389 read_bulk_callback(pegasus->rx_urb, NULL);
27d72e85
DB		 1390
1391 pegasus->intr_urb->status = 0;
1392 pegasus->intr_urb->actual_length = 0;
9727d04a 1393 intr_callback(pegasus->intr_urb, NULL);
27d72e85
DB		 1394
1395 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
1396 CARRIER_CHECK_DELAY);
1397 }
1da177e4
LT		 1398 return 0;
1399}
1400
1401static struct usb_driver pegasus_driver = {
1402 .name = driver_name,
1403 .probe = pegasus_probe,
1404 .disconnect = pegasus_disconnect,
1405 .id_table = pegasus_ids,
1406 .suspend = pegasus_suspend,
1407 .resume = pegasus_resume,
1408};
1409
1410static int __init pegasus_init(void)
1411{
1412 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
1413 pegasus_workqueue = create_singlethread_workqueue("pegasus");
1414 if (!pegasus_workqueue)
1415 return -ENOMEM;
1416 return usb_register(&pegasus_driver);
1417}
1418
1419static void __exit pegasus_exit(void)
1420{
1421 destroy_workqueue(pegasus_workqueue);
1422 usb_deregister(&pegasus_driver);
1423}
1424
1425module_init(pegasus_init);
1426module_exit(pegasus_exit);
Linux kernel - Deliverables
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