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accel/ivpu: Move recovery work to system_unbound_wq
[drm/drm-misc.git] / drivers / net / usb / pegasus.c
blob81ca64debc5b9441a100846265d99550ed5b7307
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 1999-2021 Petko Manolov (petkan@nucleusys.com)
4 *
5 */
6
7 #include <linux/sched.h>
8 #include <linux/slab.h>
9 #include <linux/init.h>
10 #include <linux/delay.h>
11 #include <linux/netdevice.h>
12 #include <linux/etherdevice.h>
13 #include <linux/ethtool.h>
14 #include <linux/mii.h>
15 #include <linux/usb.h>
16 #include <linux/module.h>
17 #include <asm/byteorder.h>
18 #include <linux/uaccess.h>
19 #include "pegasus.h"
20
21 /*
22 * Version Information
23 */
24 #define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
25 #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
26
27 static const char driver_name[] = "pegasus";
28
29 #undef PEGASUS_WRITE_EEPROM
30 #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
31 BMSR_100FULL | BMSR_ANEGCAPABLE)
32 #define CARRIER_CHECK_DELAY (2 * HZ)
33
34 static bool loopback;
35 static bool mii_mode;
36 static char *devid;
37
38 static struct usb_eth_dev usb_dev_id[] = {
39 #define PEGASUS_DEV(pn, vid, pid, flags) \
40 {.name = pn, .vendor = vid, .device = pid, .private = flags},
41 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
42 PEGASUS_DEV(pn, vid, pid, flags)
43 #include "pegasus.h"
44 #undef PEGASUS_DEV
45 #undef PEGASUS_DEV_CLASS
46 {NULL, 0, 0, 0},
47 {NULL, 0, 0, 0}
48 };
49
50 static struct usb_device_id pegasus_ids[] = {
51 #define PEGASUS_DEV(pn, vid, pid, flags) \
52 {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
53 /*
54 * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
55 * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
56 * ignore adaptors belonging to the "Wireless" class 0xE0. For this one
57 * case anyway, seeing as the pegasus is for "Wired" adaptors.
58 */
59 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
60 {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
61 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
62 #include "pegasus.h"
63 #undef PEGASUS_DEV
64 #undef PEGASUS_DEV_CLASS
65 {},
66 {}
67 };
68
69 MODULE_AUTHOR(DRIVER_AUTHOR);
70 MODULE_DESCRIPTION(DRIVER_DESC);
71 MODULE_LICENSE("GPL");
72 module_param(loopback, bool, 0);
73 module_param(mii_mode, bool, 0);
74 module_param(devid, charp, 0);
75 MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
76 MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
77 MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
78
79 /* use ethtool to change the level for any given device */
80 static int msg_level = -1;
81 module_param(msg_level, int, 0);
82 MODULE_PARM_DESC(msg_level, "Override default message level");
83
84 MODULE_DEVICE_TABLE(usb, pegasus_ids);
85 static const struct net_device_ops pegasus_netdev_ops;
86
87 /*****/
88
89 static void async_ctrl_callback(struct urb *urb)
90 {
91 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
92 int status = urb->status;
93
94 if (status < 0)
95 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
96 kfree(req);
97 usb_free_urb(urb);
98 }
99
100 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
101 {
102 return usb_control_msg_recv(pegasus->usb, 0, PEGASUS_REQ_GET_REGS,
103 PEGASUS_REQT_READ, 0, indx, data, size,
104 1000, GFP_NOIO);
105 }
106
107 static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
108 const void *data)
109 {
110 int ret;
111
112 ret = usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REGS,
113 PEGASUS_REQT_WRITE, 0, indx, data, size,
114 1000, GFP_NOIO);
115 if (ret < 0)
116 netif_dbg(pegasus, drv, pegasus->net, "%s failed with %d\n", __func__, ret);
117
118 return ret;
119 }
120
121 /*
122 * There is only one way to write to a single ADM8511 register and this is via
123 * specific control request. 'data' is ignored by the device, but it is here to
124 * not break the API.
125 */
126 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
127 {
128 void *buf = &data;
129 int ret;
130
131 ret = usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REG,
132 PEGASUS_REQT_WRITE, data, indx, buf, 1,
133 1000, GFP_NOIO);
134 if (ret < 0)
135 netif_dbg(pegasus, drv, pegasus->net, "%s failed with %d\n", __func__, ret);
136
137 return ret;
138 }
139
140 static int update_eth_regs_async(pegasus_t *pegasus)
141 {
142 int ret = -ENOMEM;
143 struct urb *async_urb;
144 struct usb_ctrlrequest *req;
145
146 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
147 if (req == NULL)
148 return ret;
149
150 async_urb = usb_alloc_urb(0, GFP_ATOMIC);
151 if (async_urb == NULL) {
152 kfree(req);
153 return ret;
154 }
155 req->bRequestType = PEGASUS_REQT_WRITE;
156 req->bRequest = PEGASUS_REQ_SET_REGS;
157 req->wValue = cpu_to_le16(0);
158 req->wIndex = cpu_to_le16(EthCtrl0);
159 req->wLength = cpu_to_le16(3);
160
161 usb_fill_control_urb(async_urb, pegasus->usb,
162 usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
163 pegasus->eth_regs, 3, async_ctrl_callback, req);
164
165 ret = usb_submit_urb(async_urb, GFP_ATOMIC);
166 if (ret) {
167 if (ret == -ENODEV)
168 netif_device_detach(pegasus->net);
169 netif_err(pegasus, drv, pegasus->net,
170 "%s returned %d\n", __func__, ret);
171 }
172 return ret;
173 }
174
175 static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
176 {
177 int i, ret;
178 __le16 regdi;
179 __u8 data[4] = { phy, 0, 0, indx };
180
181 if (cmd & PHY_WRITE) {
182 __le16 *t = (__le16 *) & data[1];
183 *t = cpu_to_le16(*regd);
184 }
185 set_register(p, PhyCtrl, 0);
186 set_registers(p, PhyAddr, sizeof(data), data);
187 set_register(p, PhyCtrl, (indx | cmd));
188 for (i = 0; i < REG_TIMEOUT; i++) {
189 ret = get_registers(p, PhyCtrl, 1, data);
190 if (ret < 0)
191 goto fail;
192 if (data[0] & PHY_DONE)
193 break;
194 }
195 if (i >= REG_TIMEOUT) {
196 ret = -ETIMEDOUT;
197 goto fail;
198 }
199 if (cmd & PHY_READ) {
200 ret = get_registers(p, PhyData, 2, &regdi);
201 if (ret < 0)
202 goto fail;
203 *regd = le16_to_cpu(regdi);
204 }
205 return 0;
206 fail:
207 netif_dbg(p, drv, p->net, "%s failed\n", __func__);
208 return ret;
209 }
210
211 /* Returns non-negative int on success, error on failure */
212 static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
213 {
214 return __mii_op(pegasus, phy, indx, regd, PHY_READ);
215 }
216
217 /* Returns zero on success, error on failure */
218 static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
219 {
220 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
221 }
222
223 static int mdio_read(struct net_device *dev, int phy_id, int loc)
224 {
225 pegasus_t *pegasus = netdev_priv(dev);
226 int ret;
227 u16 res;
228
229 ret = read_mii_word(pegasus, phy_id, loc, &res);
230 if (ret < 0)
231 return ret;
232
233 return (int)res;
234 }
235
236 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
237 {
238 pegasus_t *pegasus = netdev_priv(dev);
239 u16 data = val;
240
241 write_mii_word(pegasus, phy_id, loc, &data);
242 }
243
244 static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
245 {
246 int ret, i;
247 __le16 retdatai;
248 __u8 tmp = 0;
249
250 set_register(pegasus, EpromCtrl, 0);
251 set_register(pegasus, EpromOffset, index);
252 set_register(pegasus, EpromCtrl, EPROM_READ);
253
254 for (i = 0; i < REG_TIMEOUT; i++) {
255 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
256 if (ret < 0)
257 goto fail;
258 if (tmp & EPROM_DONE)
259 break;
260 }
261 if (i >= REG_TIMEOUT) {
262 ret = -ETIMEDOUT;
263 goto fail;
264 }
265
266 ret = get_registers(pegasus, EpromData, 2, &retdatai);
267 if (ret < 0)
268 goto fail;
269 *retdata = le16_to_cpu(retdatai);
270 return ret;
271
272 fail:
273 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
274 return ret;
275 }
276
277 #ifdef PEGASUS_WRITE_EEPROM
278 static inline void enable_eprom_write(pegasus_t *pegasus)
279 {
280 __u8 tmp;
281
282 get_registers(pegasus, EthCtrl2, 1, &tmp);
283 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
284 }
285
286 static inline void disable_eprom_write(pegasus_t *pegasus)
287 {
288 __u8 tmp;
289
290 get_registers(pegasus, EthCtrl2, 1, &tmp);
291 set_register(pegasus, EpromCtrl, 0);
292 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
293 }
294
295 static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
296 {
297 int i;
298 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
299 int ret;
300 __le16 le_data = cpu_to_le16(data);
301
302 set_registers(pegasus, EpromOffset, 4, d);
303 enable_eprom_write(pegasus);
304 set_register(pegasus, EpromOffset, index);
305 set_registers(pegasus, EpromData, 2, &le_data);
306 set_register(pegasus, EpromCtrl, EPROM_WRITE);
307
308 for (i = 0; i < REG_TIMEOUT; i++) {
309 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
310 if (ret == -ESHUTDOWN)
311 goto fail;
312 if (tmp & EPROM_DONE)
313 break;
314 }
315 disable_eprom_write(pegasus);
316 if (i >= REG_TIMEOUT)
317 goto fail;
318
319 return ret;
320
321 fail:
322 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
323 return -ETIMEDOUT;
324 }
325 #endif /* PEGASUS_WRITE_EEPROM */
326
327 static inline int get_node_id(pegasus_t *pegasus, u8 *id)
328 {
329 int i, ret;
330 u16 w16;
331
332 for (i = 0; i < 3; i++) {
333 ret = read_eprom_word(pegasus, i, &w16);
334 if (ret < 0)
335 return ret;
336 ((__le16 *) id)[i] = cpu_to_le16(w16);
337 }
338
339 return 0;
340 }
341
342 static void set_ethernet_addr(pegasus_t *pegasus)
343 {
344 int ret;
345 u8 node_id[6];
346
347 if (pegasus->features & PEGASUS_II) {
348 ret = get_registers(pegasus, 0x10, sizeof(node_id), node_id);
349 if (ret < 0)
350 goto err;
351 } else {
352 ret = get_node_id(pegasus, node_id);
353 if (ret < 0)
354 goto err;
355 ret = set_registers(pegasus, EthID, sizeof(node_id), node_id);
356 if (ret < 0)
357 goto err;
358 }
359
360 eth_hw_addr_set(pegasus->net, node_id);
361
362 return;
363 err:
364 eth_hw_addr_random(pegasus->net);
365 netif_dbg(pegasus, drv, pegasus->net, "software assigned MAC address.\n");
366
367 return;
368 }
369
370 static inline int reset_mac(pegasus_t *pegasus)
371 {
372 int ret, i;
373 __u8 data = 0x8;
374
375 set_register(pegasus, EthCtrl1, data);
376 for (i = 0; i < REG_TIMEOUT; i++) {
377 ret = get_registers(pegasus, EthCtrl1, 1, &data);
378 if (ret < 0)
379 goto fail;
380 if (~data & 0x08) {
381 if (loopback)
382 break;
383 if (mii_mode && (pegasus->features & HAS_HOME_PNA))
384 set_register(pegasus, Gpio1, 0x34);
385 else
386 set_register(pegasus, Gpio1, 0x26);
387 set_register(pegasus, Gpio0, pegasus->features);
388 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
389 break;
390 }
391 }
392 if (i == REG_TIMEOUT)
393 return -ETIMEDOUT;
394
395 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
396 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
397 set_register(pegasus, Gpio0, 0x24);
398 set_register(pegasus, Gpio0, 0x26);
399 }
400 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
401 __u16 auxmode;
402 ret = read_mii_word(pegasus, 3, 0x1b, &auxmode);
403 if (ret < 0)
404 goto fail;
405 auxmode |= 4;
406 write_mii_word(pegasus, 3, 0x1b, &auxmode);
407 }
408
409 return 0;
410 fail:
411 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
412 return ret;
413 }
414
415 static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
416 {
417 pegasus_t *pegasus = netdev_priv(dev);
418 int ret;
419 __u16 linkpart;
420 __u8 data[4];
421
422 ret = read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
423 if (ret < 0)
424 goto fail;
425 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */
426 data[1] = 0;
427 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
428 data[1] |= 0x20; /* set full duplex */
429 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
430 data[1] |= 0x10; /* set 100 Mbps */
431 if (mii_mode)
432 data[1] = 0;
433 data[2] = loopback ? 0x09 : 0x01;
434
435 memcpy(pegasus->eth_regs, data, sizeof(data));
436 ret = set_registers(pegasus, EthCtrl0, 3, data);
437
438 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
439 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
440 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
441 u16 auxmode;
442 ret = read_mii_word(pegasus, 0, 0x1b, &auxmode);
443 if (ret < 0)
444 goto fail;
445 auxmode |= 4;
446 write_mii_word(pegasus, 0, 0x1b, &auxmode);
447 }
448
449 return ret;
450 fail:
451 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
452 return ret;
453 }
454
455 static void read_bulk_callback(struct urb *urb)
456 {
457 pegasus_t *pegasus = urb->context;
458 struct net_device *net;
459 u8 *buf = urb->transfer_buffer;
460 int rx_status, count = urb->actual_length;
461 int status = urb->status;
462 __u16 pkt_len;
463
464 if (!pegasus)
465 return;
466
467 net = pegasus->net;
468 if (!netif_device_present(net) || !netif_running(net))
469 return;
470
471 switch (status) {
472 case 0:
473 break;
474 case -ETIME:
475 netif_dbg(pegasus, rx_err, net, "reset MAC\n");
476 pegasus->flags &= ~PEGASUS_RX_BUSY;
477 break;
478 case -EPIPE: /* stall, or disconnect from TT */
479 /* FIXME schedule work to clear the halt */
480 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
481 return;
482 case -ENOENT:
483 case -ECONNRESET:
484 case -ESHUTDOWN:
485 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
486 return;
487 default:
488 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
489 goto goon;
490 }
491
492 if (count < 4)
493 goto goon;
494
495 rx_status = buf[count - 2];
496 if (rx_status & 0x1c) {
497 netif_dbg(pegasus, rx_err, net,
498 "RX packet error %x\n", rx_status);
499 net->stats.rx_errors++;
500 if (rx_status & 0x04) /* runt */
501 net->stats.rx_length_errors++;
502 if (rx_status & 0x08)
503 net->stats.rx_crc_errors++;
504 if (rx_status & 0x10) /* extra bits */
505 net->stats.rx_frame_errors++;
506 goto goon;
507 }
508 if (pegasus->chip == 0x8513) {
509 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
510 pkt_len &= 0x0fff;
511 pegasus->rx_skb->data += 2;
512 } else {
513 pkt_len = buf[count - 3] << 8;
514 pkt_len += buf[count - 4];
515 pkt_len &= 0xfff;
516 pkt_len -= 4;
517 }
518
519 /*
520 * If the packet is unreasonably long, quietly drop it rather than
521 * kernel panicing by calling skb_put.
522 */
523 if (pkt_len > PEGASUS_MTU)
524 goto goon;
525
526 /*
527 * at this point we are sure pegasus->rx_skb != NULL
528 * so we go ahead and pass up the packet.
529 */
530 skb_put(pegasus->rx_skb, pkt_len);
531 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
532 netif_rx(pegasus->rx_skb);
533 net->stats.rx_packets++;
534 net->stats.rx_bytes += pkt_len;
535
536 if (pegasus->flags & PEGASUS_UNPLUG)
537 return;
538
539 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
540 GFP_ATOMIC);
541
542 if (pegasus->rx_skb == NULL)
543 goto tl_sched;
544 goon:
545 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
546 usb_rcvbulkpipe(pegasus->usb, 1),
547 pegasus->rx_skb->data, PEGASUS_MTU,
548 read_bulk_callback, pegasus);
549 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
550 if (rx_status == -ENODEV)
551 netif_device_detach(pegasus->net);
552 else if (rx_status) {
553 pegasus->flags |= PEGASUS_RX_URB_FAIL;
554 goto tl_sched;
555 } else {
556 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
557 }
558
559 return;
560
561 tl_sched:
562 tasklet_schedule(&pegasus->rx_tl);
563 }
564
565 static void rx_fixup(struct tasklet_struct *t)
566 {
567 pegasus_t *pegasus = from_tasklet(pegasus, t, rx_tl);
568 int status;
569
570 if (pegasus->flags & PEGASUS_UNPLUG)
571 return;
572
573 if (pegasus->flags & PEGASUS_RX_URB_FAIL)
574 if (pegasus->rx_skb)
575 goto try_again;
576 if (pegasus->rx_skb == NULL)
577 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
578 PEGASUS_MTU,
579 GFP_ATOMIC);
580 if (pegasus->rx_skb == NULL) {
581 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
582 tasklet_schedule(&pegasus->rx_tl);
583 return;
584 }
585 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
586 usb_rcvbulkpipe(pegasus->usb, 1),
587 pegasus->rx_skb->data, PEGASUS_MTU,
588 read_bulk_callback, pegasus);
589 try_again:
590 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
591 if (status == -ENODEV)
592 netif_device_detach(pegasus->net);
593 else if (status) {
594 pegasus->flags |= PEGASUS_RX_URB_FAIL;
595 tasklet_schedule(&pegasus->rx_tl);
596 } else {
597 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
598 }
599 }
600
601 static void write_bulk_callback(struct urb *urb)
602 {
603 pegasus_t *pegasus = urb->context;
604 struct net_device *net;
605 int status = urb->status;
606
607 if (!pegasus)
608 return;
609
610 net = pegasus->net;
611
612 if (!netif_device_present(net) || !netif_running(net))
613 return;
614
615 switch (status) {
616 case -EPIPE:
617 /* FIXME schedule_work() to clear the tx halt */
618 netif_stop_queue(net);
619 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
620 return;
621 case -ENOENT:
622 case -ECONNRESET:
623 case -ESHUTDOWN:
624 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
625 return;
626 default:
627 netif_info(pegasus, tx_err, net, "TX status %d\n", status);
628 fallthrough;
629 case 0:
630 break;
631 }
632
633 netif_trans_update(net); /* prevent tx timeout */
634 netif_wake_queue(net);
635 }
636
637 static void intr_callback(struct urb *urb)
638 {
639 pegasus_t *pegasus = urb->context;
640 struct net_device *net;
641 int res, status = urb->status;
642
643 if (!pegasus)
644 return;
645 net = pegasus->net;
646
647 switch (status) {
648 case 0:
649 break;
650 case -ECONNRESET: /* unlink */
651 case -ENOENT:
652 case -ESHUTDOWN:
653 return;
654 default:
655 /* some Pegasus-I products report LOTS of data
656 * toggle errors... avoid log spamming
657 */
658 netif_dbg(pegasus, timer, net, "intr status %d\n", status);
659 }
660
661 if (urb->actual_length >= 6) {
662 u8 *d = urb->transfer_buffer;
663
664 /* byte 0 == tx_status1, reg 2B */
665 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
666 |LATE_COL|JABBER_TIMEOUT)) {
667 net->stats.tx_errors++;
668 if (d[0] & TX_UNDERRUN)
669 net->stats.tx_fifo_errors++;
670 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
671 net->stats.tx_aborted_errors++;
672 if (d[0] & LATE_COL)
673 net->stats.tx_window_errors++;
674 }
675
676 /* d[5].LINK_STATUS lies on some adapters.
677 * d[0].NO_CARRIER kicks in only with failed TX.
678 * ... so monitoring with MII may be safest.
679 */
680
681 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
682 net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
683 }
684
685 res = usb_submit_urb(urb, GFP_ATOMIC);
686 if (res == -ENODEV)
687 netif_device_detach(pegasus->net);
688 if (res)
689 netif_err(pegasus, timer, net,
690 "can't resubmit interrupt urb, %d\n", res);
691 }
692
693 static void pegasus_tx_timeout(struct net_device *net, unsigned int txqueue)
694 {
695 pegasus_t *pegasus = netdev_priv(net);
696 netif_warn(pegasus, timer, net, "tx timeout\n");
697 usb_unlink_urb(pegasus->tx_urb);
698 net->stats.tx_errors++;
699 }
700
701 static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
702 struct net_device *net)
703 {
704 pegasus_t *pegasus = netdev_priv(net);
705 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
706 int res;
707 __u16 l16 = skb->len;
708
709 netif_stop_queue(net);
710
711 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
712 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
713 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
714 usb_sndbulkpipe(pegasus->usb, 2),
715 pegasus->tx_buff, count,
716 write_bulk_callback, pegasus);
717 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
718 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
719 switch (res) {
720 case -EPIPE: /* stall, or disconnect from TT */
721 /* cleanup should already have been scheduled */
722 break;
723 case -ENODEV: /* disconnect() upcoming */
724 case -EPERM:
725 netif_device_detach(pegasus->net);
726 break;
727 default:
728 net->stats.tx_errors++;
729 netif_start_queue(net);
730 }
731 } else {
732 net->stats.tx_packets++;
733 net->stats.tx_bytes += skb->len;
734 }
735 dev_kfree_skb(skb);
736
737 return NETDEV_TX_OK;
738 }
739
740 static inline void disable_net_traffic(pegasus_t *pegasus)
741 {
742 __le16 tmp = cpu_to_le16(0);
743
744 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
745 }
746
747 static inline int get_interrupt_interval(pegasus_t *pegasus)
748 {
749 u16 data;
750 u8 interval;
751 int ret;
752
753 ret = read_eprom_word(pegasus, 4, &data);
754 if (ret < 0)
755 return ret;
756
757 interval = data >> 8;
758 if (pegasus->usb->speed != USB_SPEED_HIGH) {
759 if (interval < 0x80) {
760 netif_info(pegasus, timer, pegasus->net,
761 "intr interval changed from %ums to %ums\n",
762 interval, 0x80);
763 interval = 0x80;
764 data = (data & 0x00FF) | ((u16)interval << 8);
765 #ifdef PEGASUS_WRITE_EEPROM
766 write_eprom_word(pegasus, 4, data);
767 #endif
768 }
769 }
770 pegasus->intr_interval = interval;
771
772 return 0;
773 }
774
775 static void set_carrier(struct net_device *net)
776 {
777 pegasus_t *pegasus = netdev_priv(net);
778 u16 tmp;
779
780 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
781 return;
782
783 if (tmp & BMSR_LSTATUS)
784 netif_carrier_on(net);
785 else
786 netif_carrier_off(net);
787 }
788
789 static void free_all_urbs(pegasus_t *pegasus)
790 {
791 usb_free_urb(pegasus->intr_urb);
792 usb_free_urb(pegasus->tx_urb);
793 usb_free_urb(pegasus->rx_urb);
794 }
795
796 static void unlink_all_urbs(pegasus_t *pegasus)
797 {
798 usb_kill_urb(pegasus->intr_urb);
799 usb_kill_urb(pegasus->tx_urb);
800 usb_kill_urb(pegasus->rx_urb);
801 }
802
803 static int alloc_urbs(pegasus_t *pegasus)
804 {
805 int res = -ENOMEM;
806
807 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
808 if (!pegasus->rx_urb) {
809 return res;
810 }
811 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
812 if (!pegasus->tx_urb) {
813 usb_free_urb(pegasus->rx_urb);
814 return res;
815 }
816 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
817 if (!pegasus->intr_urb) {
818 usb_free_urb(pegasus->tx_urb);
819 usb_free_urb(pegasus->rx_urb);
820 return res;
821 }
822
823 return 0;
824 }
825
826 static int pegasus_open(struct net_device *net)
827 {
828 pegasus_t *pegasus = netdev_priv(net);
829 int res=-ENOMEM;
830
831 if (pegasus->rx_skb == NULL)
832 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
833 PEGASUS_MTU,
834 GFP_KERNEL);
835 if (!pegasus->rx_skb)
836 goto exit;
837
838 set_registers(pegasus, EthID, 6, net->dev_addr);
839
840 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
841 usb_rcvbulkpipe(pegasus->usb, 1),
842 pegasus->rx_skb->data, PEGASUS_MTU,
843 read_bulk_callback, pegasus);
844 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
845 if (res == -ENODEV)
846 netif_device_detach(pegasus->net);
847 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
848 goto exit;
849 }
850
851 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
852 usb_rcvintpipe(pegasus->usb, 3),
853 pegasus->intr_buff, sizeof(pegasus->intr_buff),
854 intr_callback, pegasus, pegasus->intr_interval);
855 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
856 if (res == -ENODEV)
857 netif_device_detach(pegasus->net);
858 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
859 usb_kill_urb(pegasus->rx_urb);
860 goto exit;
861 }
862 res = enable_net_traffic(net, pegasus->usb);
863 if (res < 0) {
864 netif_dbg(pegasus, ifup, net,
865 "can't enable_net_traffic() - %d\n", res);
866 res = -EIO;
867 usb_kill_urb(pegasus->rx_urb);
868 usb_kill_urb(pegasus->intr_urb);
869 goto exit;
870 }
871 set_carrier(net);
872 netif_start_queue(net);
873 netif_dbg(pegasus, ifup, net, "open\n");
874 res = 0;
875 exit:
876 return res;
877 }
878
879 static int pegasus_close(struct net_device *net)
880 {
881 pegasus_t *pegasus = netdev_priv(net);
882
883 netif_stop_queue(net);
884 if (!(pegasus->flags & PEGASUS_UNPLUG))
885 disable_net_traffic(pegasus);
886 tasklet_kill(&pegasus->rx_tl);
887 unlink_all_urbs(pegasus);
888
889 return 0;
890 }
891
892 static void pegasus_get_drvinfo(struct net_device *dev,
893 struct ethtool_drvinfo *info)
894 {
895 pegasus_t *pegasus = netdev_priv(dev);
896
897 strscpy(info->driver, driver_name, sizeof(info->driver));
898 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
899 }
900
901 /* also handles three patterns of some kind in hardware */
902 #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
903
904 static void
905 pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
906 {
907 pegasus_t *pegasus = netdev_priv(dev);
908
909 wol->supported = WAKE_MAGIC | WAKE_PHY;
910 wol->wolopts = pegasus->wolopts;
911 }
912
913 static int
914 pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
915 {
916 pegasus_t *pegasus = netdev_priv(dev);
917 u8 reg78 = 0x04;
918 int ret;
919
920 if (wol->wolopts & ~WOL_SUPPORTED)
921 return -EINVAL;
922
923 if (wol->wolopts & WAKE_MAGIC)
924 reg78 |= 0x80;
925 if (wol->wolopts & WAKE_PHY)
926 reg78 |= 0x40;
927 /* FIXME this 0x10 bit still needs to get set in the chip... */
928 if (wol->wolopts)
929 pegasus->eth_regs[0] |= 0x10;
930 else
931 pegasus->eth_regs[0] &= ~0x10;
932 pegasus->wolopts = wol->wolopts;
933
934 ret = set_register(pegasus, WakeupControl, reg78);
935 if (!ret)
936 ret = device_set_wakeup_enable(&pegasus->usb->dev,
937 wol->wolopts);
938 return ret;
939 }
940
941 static inline void pegasus_reset_wol(struct net_device *dev)
942 {
943 struct ethtool_wolinfo wol;
944
945 memset(&wol, 0, sizeof wol);
946 (void) pegasus_set_wol(dev, &wol);
947 }
948
949 static int
950 pegasus_get_link_ksettings(struct net_device *dev,
951 struct ethtool_link_ksettings *ecmd)
952 {
953 pegasus_t *pegasus;
954
955 pegasus = netdev_priv(dev);
956 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd);
957 return 0;
958 }
959
960 static int
961 pegasus_set_link_ksettings(struct net_device *dev,
962 const struct ethtool_link_ksettings *ecmd)
963 {
964 pegasus_t *pegasus = netdev_priv(dev);
965 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd);
966 }
967
968 static int pegasus_nway_reset(struct net_device *dev)
969 {
970 pegasus_t *pegasus = netdev_priv(dev);
971 return mii_nway_restart(&pegasus->mii);
972 }
973
974 static u32 pegasus_get_link(struct net_device *dev)
975 {
976 pegasus_t *pegasus = netdev_priv(dev);
977 return mii_link_ok(&pegasus->mii);
978 }
979
980 static u32 pegasus_get_msglevel(struct net_device *dev)
981 {
982 pegasus_t *pegasus = netdev_priv(dev);
983 return pegasus->msg_enable;
984 }
985
986 static void pegasus_set_msglevel(struct net_device *dev, u32 v)
987 {
988 pegasus_t *pegasus = netdev_priv(dev);
989 pegasus->msg_enable = v;
990 }
991
992 static const struct ethtool_ops ops = {
993 .get_drvinfo = pegasus_get_drvinfo,
994 .nway_reset = pegasus_nway_reset,
995 .get_link = pegasus_get_link,
996 .get_msglevel = pegasus_get_msglevel,
997 .set_msglevel = pegasus_set_msglevel,
998 .get_wol = pegasus_get_wol,
999 .set_wol = pegasus_set_wol,
1000 .get_link_ksettings = pegasus_get_link_ksettings,
1001 .set_link_ksettings = pegasus_set_link_ksettings,
1002 };
1003
1004 static int pegasus_siocdevprivate(struct net_device *net, struct ifreq *rq,
1005 void __user *udata, int cmd)
1006 {
1007 __u16 *data = (__u16 *) &rq->ifr_ifru;
1008 pegasus_t *pegasus = netdev_priv(net);
1009 int res;
1010
1011 switch (cmd) {
1012 case SIOCDEVPRIVATE:
1013 data[0] = pegasus->phy;
1014 fallthrough;
1015 case SIOCDEVPRIVATE + 1:
1016 res = read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
1017 break;
1018 case SIOCDEVPRIVATE + 2:
1019 if (!capable(CAP_NET_ADMIN))
1020 return -EPERM;
1021 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
1022 res = 0;
1023 break;
1024 default:
1025 res = -EOPNOTSUPP;
1026 }
1027 return res;
1028 }
1029
1030 static void pegasus_set_multicast(struct net_device *net)
1031 {
1032 pegasus_t *pegasus = netdev_priv(net);
1033
1034 if (net->flags & IFF_PROMISC) {
1035 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
1036 netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
1037 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
1038 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
1039 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1040 netif_dbg(pegasus, link, net, "set allmulti\n");
1041 } else {
1042 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
1043 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1044 }
1045 update_eth_regs_async(pegasus);
1046 }
1047
1048 static __u8 mii_phy_probe(pegasus_t *pegasus)
1049 {
1050 int i, ret;
1051 __u16 tmp;
1052
1053 for (i = 0; i < 32; i++) {
1054 ret = read_mii_word(pegasus, i, MII_BMSR, &tmp);
1055 if (ret < 0)
1056 goto fail;
1057 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
1058 continue;
1059 else
1060 return i;
1061 }
1062 fail:
1063 return 0xff;
1064 }
1065
1066 static inline void setup_pegasus_II(pegasus_t *pegasus)
1067 {
1068 int ret;
1069 __u8 data = 0xa5;
1070
1071 set_register(pegasus, Reg1d, 0);
1072 set_register(pegasus, Reg7b, 1);
1073 msleep(100);
1074 if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
1075 set_register(pegasus, Reg7b, 0);
1076 else
1077 set_register(pegasus, Reg7b, 2);
1078
1079 set_register(pegasus, 0x83, data);
1080 ret = get_registers(pegasus, 0x83, 1, &data);
1081 if (ret < 0)
1082 goto fail;
1083
1084 if (data == 0xa5)
1085 pegasus->chip = 0x8513;
1086 else
1087 pegasus->chip = 0;
1088
1089 set_register(pegasus, 0x80, 0xc0);
1090 set_register(pegasus, 0x83, 0xff);
1091 set_register(pegasus, 0x84, 0x01);
1092
1093 if (pegasus->features & HAS_HOME_PNA && mii_mode)
1094 set_register(pegasus, Reg81, 6);
1095 else
1096 set_register(pegasus, Reg81, 2);
1097
1098 return;
1099 fail:
1100 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
1101 }
1102
1103 static void check_carrier(struct work_struct *work)
1104 {
1105 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
1106 set_carrier(pegasus->net);
1107 if (!(pegasus->flags & PEGASUS_UNPLUG)) {
1108 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1109 CARRIER_CHECK_DELAY);
1110 }
1111 }
1112
1113 static int pegasus_blacklisted(struct usb_device *udev)
1114 {
1115 struct usb_device_descriptor *udd = &udev->descriptor;
1116
1117 /* Special quirk to keep the driver from handling the Belkin Bluetooth
1118 * dongle which happens to have the same ID.
1119 */
1120 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
1121 (udd->idProduct == cpu_to_le16(0x0121)) &&
1122 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
1123 (udd->bDeviceProtocol == 1))
1124 return 1;
1125
1126 return 0;
1127 }
1128
1129 static int pegasus_probe(struct usb_interface *intf,
1130 const struct usb_device_id *id)
1131 {
1132 struct usb_device *dev = interface_to_usbdev(intf);
1133 struct net_device *net;
1134 pegasus_t *pegasus;
1135 int dev_index = id - pegasus_ids;
1136 int res = -ENOMEM;
1137
1138 if (pegasus_blacklisted(dev))
1139 return -ENODEV;
1140
1141 net = alloc_etherdev(sizeof(struct pegasus));
1142 if (!net)
1143 goto out;
1144
1145 pegasus = netdev_priv(net);
1146 pegasus->dev_index = dev_index;
1147
1148 res = alloc_urbs(pegasus);
1149 if (res < 0) {
1150 dev_err(&intf->dev, "can't allocate %s\n", "urbs");
1151 goto out1;
1152 }
1153
1154 tasklet_setup(&pegasus->rx_tl, rx_fixup);
1155
1156 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
1157
1158 pegasus->intf = intf;
1159 pegasus->usb = dev;
1160 pegasus->net = net;
1161
1162
1163 net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
1164 net->netdev_ops = &pegasus_netdev_ops;
1165 net->ethtool_ops = &ops;
1166 pegasus->mii.dev = net;
1167 pegasus->mii.mdio_read = mdio_read;
1168 pegasus->mii.mdio_write = mdio_write;
1169 pegasus->mii.phy_id_mask = 0x1f;
1170 pegasus->mii.reg_num_mask = 0x1f;
1171 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
1172 | NETIF_MSG_PROBE | NETIF_MSG_LINK);
1173
1174 pegasus->features = usb_dev_id[dev_index].private;
1175 res = get_interrupt_interval(pegasus);
1176 if (res)
1177 goto out2;
1178 if (reset_mac(pegasus)) {
1179 dev_err(&intf->dev, "can't reset MAC\n");
1180 res = -EIO;
1181 goto out2;
1182 }
1183 set_ethernet_addr(pegasus);
1184 if (pegasus->features & PEGASUS_II) {
1185 dev_info(&intf->dev, "setup Pegasus II specific registers\n");
1186 setup_pegasus_II(pegasus);
1187 }
1188 pegasus->phy = mii_phy_probe(pegasus);
1189 if (pegasus->phy == 0xff) {
1190 dev_warn(&intf->dev, "can't locate MII phy, using default\n");
1191 pegasus->phy = 1;
1192 }
1193 pegasus->mii.phy_id = pegasus->phy;
1194 usb_set_intfdata(intf, pegasus);
1195 SET_NETDEV_DEV(net, &intf->dev);
1196 pegasus_reset_wol(net);
1197 res = register_netdev(net);
1198 if (res)
1199 goto out3;
1200 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1201 CARRIER_CHECK_DELAY);
1202 dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
1203 usb_dev_id[dev_index].name, net->dev_addr);
1204 return 0;
1205
1206 out3:
1207 usb_set_intfdata(intf, NULL);
1208 out2:
1209 free_all_urbs(pegasus);
1210 out1:
1211 free_netdev(net);
1212 out:
1213 return res;
1214 }
1215
1216 static void pegasus_disconnect(struct usb_interface *intf)
1217 {
1218 struct pegasus *pegasus = usb_get_intfdata(intf);
1219
1220 usb_set_intfdata(intf, NULL);
1221 if (!pegasus) {
1222 dev_dbg(&intf->dev, "unregistering non-bound device?\n");
1223 return;
1224 }
1225
1226 pegasus->flags |= PEGASUS_UNPLUG;
1227 cancel_delayed_work_sync(&pegasus->carrier_check);
1228 unregister_netdev(pegasus->net);
1229 unlink_all_urbs(pegasus);
1230 free_all_urbs(pegasus);
1231 if (pegasus->rx_skb != NULL) {
1232 dev_kfree_skb(pegasus->rx_skb);
1233 pegasus->rx_skb = NULL;
1234 }
1235 free_netdev(pegasus->net);
1236 }
1237
1238 static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
1239 {
1240 struct pegasus *pegasus = usb_get_intfdata(intf);
1241
1242 netif_device_detach(pegasus->net);
1243 cancel_delayed_work_sync(&pegasus->carrier_check);
1244 if (netif_running(pegasus->net)) {
1245 usb_kill_urb(pegasus->rx_urb);
1246 usb_kill_urb(pegasus->intr_urb);
1247 }
1248 return 0;
1249 }
1250
1251 static int pegasus_resume(struct usb_interface *intf)
1252 {
1253 struct pegasus *pegasus = usb_get_intfdata(intf);
1254
1255 netif_device_attach(pegasus->net);
1256 if (netif_running(pegasus->net)) {
1257 pegasus->rx_urb->status = 0;
1258 pegasus->rx_urb->actual_length = 0;
1259 read_bulk_callback(pegasus->rx_urb);
1260
1261 pegasus->intr_urb->status = 0;
1262 pegasus->intr_urb->actual_length = 0;
1263 intr_callback(pegasus->intr_urb);
1264 }
1265 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1266 CARRIER_CHECK_DELAY);
1267 return 0;
1268 }
1269
1270 static const struct net_device_ops pegasus_netdev_ops = {
1271 .ndo_open = pegasus_open,
1272 .ndo_stop = pegasus_close,
1273 .ndo_siocdevprivate = pegasus_siocdevprivate,
1274 .ndo_start_xmit = pegasus_start_xmit,
1275 .ndo_set_rx_mode = pegasus_set_multicast,
1276 .ndo_tx_timeout = pegasus_tx_timeout,
1277 .ndo_set_mac_address = eth_mac_addr,
1278 .ndo_validate_addr = eth_validate_addr,
1279 };
1280
1281 static struct usb_driver pegasus_driver = {
1282 .name = driver_name,
1283 .probe = pegasus_probe,
1284 .disconnect = pegasus_disconnect,
1285 .id_table = pegasus_ids,
1286 .suspend = pegasus_suspend,
1287 .resume = pegasus_resume,
1288 .disable_hub_initiated_lpm = 1,
1289 };
1290
1291 static void __init parse_id(char *id)
1292 {
1293 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
1294 char *token, *name = NULL;
1295
1296 if ((token = strsep(&id, ":")) != NULL)
1297 name = token;
1298 /* name now points to a null terminated string*/
1299 if ((token = strsep(&id, ":")) != NULL)
1300 vendor_id = simple_strtoul(token, NULL, 16);
1301 if ((token = strsep(&id, ":")) != NULL)
1302 device_id = simple_strtoul(token, NULL, 16);
1303 flags = simple_strtoul(id, NULL, 16);
1304 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
1305 driver_name, name, vendor_id, device_id, flags);
1306
1307 if (vendor_id > 0x10000 || vendor_id == 0)
1308 return;
1309 if (device_id > 0x10000 || device_id == 0)
1310 return;
1311
1312 for (i = 0; usb_dev_id[i].name; i++);
1313 usb_dev_id[i].name = name;
1314 usb_dev_id[i].vendor = vendor_id;
1315 usb_dev_id[i].device = device_id;
1316 usb_dev_id[i].private = flags;
1317 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
1318 pegasus_ids[i].idVendor = vendor_id;
1319 pegasus_ids[i].idProduct = device_id;
1320 }
1321
1322 static int __init pegasus_init(void)
1323 {
1324 pr_info("%s: " DRIVER_DESC "\n", driver_name);
1325 if (devid)
1326 parse_id(devid);
1327 return usb_register(&pegasus_driver);
1328 }
1329
1330 static void __exit pegasus_exit(void)
1331 {
1332 usb_deregister(&pegasus_driver);
1333 }
1334
1335 module_init(pegasus_init);
1336 module_exit(pegasus_exit);
Kernel DRM miscellaneous fixes and cross-tree changes