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15#include <linux/init.h>
16#include <linux/usb.h>
17#include <linux/pci.h>
18#include <linux/slab.h>
19#include <linux/firmware.h>
20#include <linux/etherdevice.h>
21#include <linux/delay.h>
22#include <linux/crc32.h>
23#include <linux/module.h>
24#include <net/mac80211.h>
25
26#include "p54.h"
27#include "lmac.h"
28#include "p54usb.h"
29
30MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
31MODULE_DESCRIPTION("Prism54 USB wireless driver");
32MODULE_LICENSE("GPL");
33MODULE_ALIAS("prism54usb");
34MODULE_FIRMWARE("isl3886usb");
35MODULE_FIRMWARE("isl3887usb");
36
37
38
39
40
41
42
43
44
45static struct usb_device_id p54u_table[] __devinitdata = {
46
47 {USB_DEVICE(0x0411, 0x0050)},
48 {USB_DEVICE(0x045e, 0x00c2)},
49 {USB_DEVICE(0x0506, 0x0a11)},
50 {USB_DEVICE(0x06b9, 0x0120)},
51 {USB_DEVICE(0x0707, 0xee06)},
52 {USB_DEVICE(0x07aa, 0x001c)},
53 {USB_DEVICE(0x083a, 0x4501)},
54 {USB_DEVICE(0x083a, 0x4502)},
55 {USB_DEVICE(0x083a, 0x5501)},
56 {USB_DEVICE(0x0846, 0x4200)},
57 {USB_DEVICE(0x0846, 0x4210)},
58 {USB_DEVICE(0x0846, 0x4220)},
59 {USB_DEVICE(0x09aa, 0x1000)},
60 {USB_DEVICE(0x0bf8, 0x1007)},
61 {USB_DEVICE(0x0cde, 0x0006)},
62 {USB_DEVICE(0x0db0, 0x6826)},
63 {USB_DEVICE(0x107b, 0x55f2)},
64 {USB_DEVICE(0x124a, 0x4023)},
65 {USB_DEVICE(0x1435, 0x0210)},
66 {USB_DEVICE(0x15a9, 0x0002)},
67 {USB_DEVICE(0x1630, 0x0005)},
68 {USB_DEVICE(0x182d, 0x096b)},
69 {USB_DEVICE(0x1915, 0x2234)},
70 {USB_DEVICE(0x1915, 0x2235)},
71 {USB_DEVICE(0x2001, 0x3701)},
72 {USB_DEVICE(0x2001, 0x3703)},
73 {USB_DEVICE(0x2001, 0x3762)},
74 {USB_DEVICE(0x5041, 0x2234)},
75 {USB_DEVICE(0x5041, 0x2235)},
76
77
78 {USB_DEVICE(0x0471, 0x1230)},
79 {USB_DEVICE(0x050d, 0x7050)},
80 {USB_DEVICE(0x0572, 0x2000)},
81 {USB_DEVICE(0x0572, 0x2002)},
82 {USB_DEVICE(0x06a9, 0x000e)},
83 {USB_DEVICE(0x06b9, 0x0121)},
84 {USB_DEVICE(0x0707, 0xee13)},
85 {USB_DEVICE(0x083a, 0x4521)},
86 {USB_DEVICE(0x083a, 0xc501)},
87 {USB_DEVICE(0x083a, 0xf503)},
88 {USB_DEVICE(0x0846, 0x4240)},
89 {USB_DEVICE(0x0915, 0x2000)},
90 {USB_DEVICE(0x0915, 0x2002)},
91 {USB_DEVICE(0x0baf, 0x0118)},
92 {USB_DEVICE(0x0bf8, 0x1009)},
93
94
95 {USB_DEVICE(0x0cde, 0x0008)},
96 {USB_DEVICE(0x0cde, 0x0015)},
97 {USB_DEVICE(0x0d8e, 0x3762)},
98 {USB_DEVICE(0x124a, 0x4025)},
99 {USB_DEVICE(0x1260, 0xee22)},
100 {USB_DEVICE(0x13b1, 0x000a)},
101 {USB_DEVICE(0x13B1, 0x000C)},
102 {USB_DEVICE(0x1413, 0x5400)},
103 {USB_DEVICE(0x1435, 0x0427)},
104 {USB_DEVICE(0x1668, 0x1050)},
105 {USB_DEVICE(0x1740, 0x1000)},
106 {USB_DEVICE(0x2001, 0x3704)},
107 {USB_DEVICE(0x2001, 0x3705)},
108 {USB_DEVICE(0x413c, 0x5513)},
109 {USB_DEVICE(0x413c, 0x8102)},
110 {USB_DEVICE(0x413c, 0x8104)},
111 {}
112};
113
114MODULE_DEVICE_TABLE(usb, p54u_table);
115
116static const struct {
117 u32 intf;
118 enum p54u_hw_type type;
119 const char *fw;
120 const char *fw_legacy;
121 char hw[20];
122} p54u_fwlist[__NUM_P54U_HWTYPES] = {
123 {
124 .type = P54U_NET2280,
125 .intf = FW_LM86,
126 .fw = "isl3886usb",
127 .fw_legacy = "isl3890usb",
128 .hw = "ISL3886 + net2280",
129 },
130 {
131 .type = P54U_3887,
132 .intf = FW_LM87,
133 .fw = "isl3887usb",
134 .fw_legacy = "isl3887usb_bare",
135 .hw = "ISL3887",
136 },
137};
138
139static void p54u_rx_cb(struct urb *urb)
140{
141 struct sk_buff *skb = (struct sk_buff *) urb->context;
142 struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
143 struct ieee80211_hw *dev = info->dev;
144 struct p54u_priv *priv = dev->priv;
145
146 skb_unlink(skb, &priv->rx_queue);
147
148 if (unlikely(urb->status)) {
149 dev_kfree_skb_irq(skb);
150 return;
151 }
152
153 skb_put(skb, urb->actual_length);
154
155 if (priv->hw_type == P54U_NET2280)
156 skb_pull(skb, priv->common.tx_hdr_len);
157 if (priv->common.fw_interface == FW_LM87) {
158 skb_pull(skb, 4);
159 skb_put(skb, 4);
160 }
161
162 if (p54_rx(dev, skb)) {
163 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
164 if (unlikely(!skb)) {
165
166 return;
167 }
168
169 info = (struct p54u_rx_info *) skb->cb;
170 info->urb = urb;
171 info->dev = dev;
172 urb->transfer_buffer = skb_tail_pointer(skb);
173 urb->context = skb;
174 } else {
175 if (priv->hw_type == P54U_NET2280)
176 skb_push(skb, priv->common.tx_hdr_len);
177 if (priv->common.fw_interface == FW_LM87) {
178 skb_push(skb, 4);
179 skb_put(skb, 4);
180 }
181 skb_reset_tail_pointer(skb);
182 skb_trim(skb, 0);
183 urb->transfer_buffer = skb_tail_pointer(skb);
184 }
185 skb_queue_tail(&priv->rx_queue, skb);
186 usb_anchor_urb(urb, &priv->submitted);
187 if (usb_submit_urb(urb, GFP_ATOMIC)) {
188 skb_unlink(skb, &priv->rx_queue);
189 usb_unanchor_urb(urb);
190 dev_kfree_skb_irq(skb);
191 }
192}
193
194static void p54u_tx_cb(struct urb *urb)
195{
196 struct sk_buff *skb = urb->context;
197 struct ieee80211_hw *dev =
198 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
199
200 p54_free_skb(dev, skb);
201}
202
203static void p54u_tx_dummy_cb(struct urb *urb) { }
204
205static void p54u_free_urbs(struct ieee80211_hw *dev)
206{
207 struct p54u_priv *priv = dev->priv;
208 usb_kill_anchored_urbs(&priv->submitted);
209}
210
211static int p54u_init_urbs(struct ieee80211_hw *dev)
212{
213 struct p54u_priv *priv = dev->priv;
214 struct urb *entry = NULL;
215 struct sk_buff *skb;
216 struct p54u_rx_info *info;
217 int ret = 0;
218
219 while (skb_queue_len(&priv->rx_queue) < 32) {
220 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
221 if (!skb) {
222 ret = -ENOMEM;
223 goto err;
224 }
225 entry = usb_alloc_urb(0, GFP_KERNEL);
226 if (!entry) {
227 ret = -ENOMEM;
228 goto err;
229 }
230
231 usb_fill_bulk_urb(entry, priv->udev,
232 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
233 skb_tail_pointer(skb),
234 priv->common.rx_mtu + 32, p54u_rx_cb, skb);
235 info = (struct p54u_rx_info *) skb->cb;
236 info->urb = entry;
237 info->dev = dev;
238 skb_queue_tail(&priv->rx_queue, skb);
239
240 usb_anchor_urb(entry, &priv->submitted);
241 ret = usb_submit_urb(entry, GFP_KERNEL);
242 if (ret) {
243 skb_unlink(skb, &priv->rx_queue);
244 usb_unanchor_urb(entry);
245 goto err;
246 }
247 usb_free_urb(entry);
248 entry = NULL;
249 }
250
251 return 0;
252
253 err:
254 usb_free_urb(entry);
255 kfree_skb(skb);
256 p54u_free_urbs(dev);
257 return ret;
258}
259
260static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
261{
262 u32 chk = 0;
263
264 length >>= 2;
265 while (length--) {
266 chk ^= le32_to_cpu(*data++);
267 chk = (chk >> 5) ^ (chk << 3);
268 }
269
270 return cpu_to_le32(chk);
271}
272
273static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
274{
275 struct p54u_priv *priv = dev->priv;
276 struct urb *data_urb;
277 struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
278
279 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
280 if (!data_urb) {
281 p54_free_skb(dev, skb);
282 return;
283 }
284
285 hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
286 hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
287
288 usb_fill_bulk_urb(data_urb, priv->udev,
289 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
290 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
291 p54u_tx_cb : p54u_tx_dummy_cb, skb);
292 data_urb->transfer_flags |= URB_ZERO_PACKET;
293
294 usb_anchor_urb(data_urb, &priv->submitted);
295 if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
296 usb_unanchor_urb(data_urb);
297 p54_free_skb(dev, skb);
298 }
299 usb_free_urb(data_urb);
300}
301
302static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
303{
304 struct p54u_priv *priv = dev->priv;
305 struct urb *int_urb = NULL, *data_urb = NULL;
306 struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
307 struct net2280_reg_write *reg = NULL;
308 int err = -ENOMEM;
309
310 reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
311 if (!reg)
312 goto out;
313
314 int_urb = usb_alloc_urb(0, GFP_ATOMIC);
315 if (!int_urb)
316 goto out;
317
318 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
319 if (!data_urb)
320 goto out;
321
322 reg->port = cpu_to_le16(NET2280_DEV_U32);
323 reg->addr = cpu_to_le32(P54U_DEV_BASE);
324 reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
325
326 memset(hdr, 0, sizeof(*hdr));
327 hdr->len = cpu_to_le16(skb->len);
328 hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
329
330 usb_fill_bulk_urb(int_urb, priv->udev,
331 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
332 p54u_tx_dummy_cb, dev);
333
334
335
336
337
338
339 int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
340 reg = NULL;
341
342 usb_fill_bulk_urb(data_urb, priv->udev,
343 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
344 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
345 p54u_tx_cb : p54u_tx_dummy_cb, skb);
346 data_urb->transfer_flags |= URB_ZERO_PACKET;
347
348 usb_anchor_urb(int_urb, &priv->submitted);
349 err = usb_submit_urb(int_urb, GFP_ATOMIC);
350 if (err) {
351 usb_unanchor_urb(int_urb);
352 goto out;
353 }
354
355 usb_anchor_urb(data_urb, &priv->submitted);
356 err = usb_submit_urb(data_urb, GFP_ATOMIC);
357 if (err) {
358 usb_unanchor_urb(data_urb);
359 goto out;
360 }
361out:
362 usb_free_urb(int_urb);
363 usb_free_urb(data_urb);
364
365 if (err) {
366 kfree(reg);
367 p54_free_skb(dev, skb);
368 }
369}
370
371static int p54u_write(struct p54u_priv *priv,
372 struct net2280_reg_write *buf,
373 enum net2280_op_type type,
374 __le32 addr, __le32 val)
375{
376 unsigned int ep;
377 int alen;
378
379 if (type & 0x0800)
380 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
381 else
382 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
383
384 buf->port = cpu_to_le16(type);
385 buf->addr = addr;
386 buf->val = val;
387
388 return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
389}
390
391static int p54u_read(struct p54u_priv *priv, void *buf,
392 enum net2280_op_type type,
393 __le32 addr, __le32 *val)
394{
395 struct net2280_reg_read *read = buf;
396 __le32 *reg = buf;
397 unsigned int ep;
398 int alen, err;
399
400 if (type & 0x0800)
401 ep = P54U_PIPE_DEV;
402 else
403 ep = P54U_PIPE_BRG;
404
405 read->port = cpu_to_le16(type);
406 read->addr = addr;
407
408 err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
409 read, sizeof(*read), &alen, 1000);
410 if (err)
411 return err;
412
413 err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
414 reg, sizeof(*reg), &alen, 1000);
415 if (err)
416 return err;
417
418 *val = *reg;
419 return 0;
420}
421
422static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
423 void *data, size_t len)
424{
425 int alen;
426 return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
427 data, len, &alen, 2000);
428}
429
430static int p54u_device_reset(struct ieee80211_hw *dev)
431{
432 struct p54u_priv *priv = dev->priv;
433 int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
434
435 if (lock) {
436 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
437 if (ret < 0) {
438 dev_err(&priv->udev->dev, "(p54usb) unable to lock "
439 "device for reset (%d)!\n", ret);
440 return ret;
441 }
442 }
443
444 ret = usb_reset_device(priv->udev);
445 if (lock)
446 usb_unlock_device(priv->udev);
447
448 if (ret)
449 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
450 "device (%d)!\n", ret);
451
452 return ret;
453}
454
455static const char p54u_romboot_3887[] = "~~~~";
456static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
457{
458 struct p54u_priv *priv = dev->priv;
459 u8 *buf;
460 int ret;
461
462 buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
463 if (!buf)
464 return -ENOMEM;
465 ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
466 buf, 4);
467 kfree(buf);
468 if (ret)
469 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
470 "boot ROM (%d)!\n", ret);
471
472 return ret;
473}
474
475static const char p54u_firmware_upload_3887[] = "<\r";
476static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
477{
478 struct p54u_priv *priv = dev->priv;
479 int err, alen;
480 u8 carry = 0;
481 u8 *buf, *tmp;
482 const u8 *data;
483 unsigned int left, remains, block_size;
484 struct x2_header *hdr;
485 unsigned long timeout;
486
487 err = p54u_firmware_reset_3887(dev);
488 if (err)
489 return err;
490
491 tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
492 if (!buf) {
493 dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware"
494 "upload buffer!\n");
495 return -ENOMEM;
496 }
497
498 left = block_size = min((size_t)P54U_FW_BLOCK, priv->fw->size);
499 strcpy(buf, p54u_firmware_upload_3887);
500 left -= strlen(p54u_firmware_upload_3887);
501 tmp += strlen(p54u_firmware_upload_3887);
502
503 data = priv->fw->data;
504 remains = priv->fw->size;
505
506 hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
507 memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
508 hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
509 hdr->fw_length = cpu_to_le32(priv->fw->size);
510 hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
511 sizeof(u32)*2));
512 left -= sizeof(*hdr);
513 tmp += sizeof(*hdr);
514
515 while (remains) {
516 while (left--) {
517 if (carry) {
518 *tmp++ = carry;
519 carry = 0;
520 remains--;
521 continue;
522 }
523 switch (*data) {
524 case '~':
525 *tmp++ = '}';
526 carry = '^';
527 break;
528 case '}':
529 *tmp++ = '}';
530 carry = ']';
531 break;
532 default:
533 *tmp++ = *data;
534 remains--;
535 break;
536 }
537 data++;
538 }
539
540 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
541 if (err) {
542 dev_err(&priv->udev->dev, "(p54usb) firmware "
543 "upload failed!\n");
544 goto err_upload_failed;
545 }
546
547 tmp = buf;
548 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
549 }
550
551 *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
552 priv->fw->size));
553 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
554 if (err) {
555 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
556 goto err_upload_failed;
557 }
558 timeout = jiffies + msecs_to_jiffies(1000);
559 while (!(err = usb_bulk_msg(priv->udev,
560 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
561 if (alen > 2 && !memcmp(buf, "OK", 2))
562 break;
563
564 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
565 err = -EINVAL;
566 break;
567 }
568
569 if (time_after(jiffies, timeout)) {
570 dev_err(&priv->udev->dev, "(p54usb) firmware boot "
571 "timed out!\n");
572 err = -ETIMEDOUT;
573 break;
574 }
575 }
576 if (err) {
577 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
578 goto err_upload_failed;
579 }
580
581 buf[0] = 'g';
582 buf[1] = '\r';
583 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
584 if (err) {
585 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
586 goto err_upload_failed;
587 }
588
589 timeout = jiffies + msecs_to_jiffies(1000);
590 while (!(err = usb_bulk_msg(priv->udev,
591 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
592 if (alen > 0 && buf[0] == 'g')
593 break;
594
595 if (time_after(jiffies, timeout)) {
596 err = -ETIMEDOUT;
597 break;
598 }
599 }
600 if (err)
601 goto err_upload_failed;
602
603err_upload_failed:
604 kfree(buf);
605 return err;
606}
607
608static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
609{
610 struct p54u_priv *priv = dev->priv;
611 const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
612 int err, alen;
613 void *buf;
614 __le32 reg;
615 unsigned int remains, offset;
616 const u8 *data;
617
618 buf = kmalloc(512, GFP_KERNEL);
619 if (!buf) {
620 dev_err(&priv->udev->dev, "(p54usb) firmware buffer "
621 "alloc failed!\n");
622 return -ENOMEM;
623 }
624
625#define P54U_WRITE(type, addr, data) \
626 do {\
627 err = p54u_write(priv, buf, type,\
628 cpu_to_le32((u32)(unsigned long)addr), data);\
629 if (err) \
630 goto fail;\
631 } while (0)
632
633#define P54U_READ(type, addr) \
634 do {\
635 err = p54u_read(priv, buf, type,\
636 cpu_to_le32((u32)(unsigned long)addr), ®);\
637 if (err)\
638 goto fail;\
639 } while (0)
640
641
642 P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
643 reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
644 reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
645 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
646
647 mdelay(100);
648
649
650 reg |= cpu_to_le32(P54U_BRG_POWER_UP);
651 reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
652 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
653
654 mdelay(100);
655
656 P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
657 cpu_to_le32(NET2280_CLK_30Mhz |
658 NET2280_PCI_ENABLE |
659 NET2280_PCI_SOFT_RESET));
660
661 mdelay(20);
662
663 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
664 cpu_to_le32(PCI_COMMAND_MEMORY |
665 PCI_COMMAND_MASTER));
666
667 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
668 cpu_to_le32(NET2280_BASE));
669
670 P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
671 reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
672 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
673
674
675 P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
676
677 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
678 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
679 P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
680 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
681
682 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
683 cpu_to_le32(NET2280_BASE2));
684
685
686
687 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
688 cpu_to_le32(PCI_COMMAND_MEMORY |
689 PCI_COMMAND_MASTER));
690
691 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 , 0);
692 P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
693 cpu_to_le32(P54U_DEV_BASE));
694
695 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
696 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
697 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
698
699
700 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
701
702 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
703 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
704 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
705 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
706 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
707
708 mdelay(20);
709
710 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
711 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
712
713 mdelay(20);
714
715 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
716 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
717
718 mdelay(100);
719
720 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
721 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
722
723
724 remains = priv->fw->size;
725 data = priv->fw->data;
726 offset = ISL38XX_DEV_FIRMWARE_ADDR;
727
728 while (remains) {
729 unsigned int block_len = min(remains, (unsigned int)512);
730 memcpy(buf, data, block_len);
731
732 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
733 if (err) {
734 dev_err(&priv->udev->dev, "(p54usb) firmware block "
735 "upload failed\n");
736 goto fail;
737 }
738
739 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
740 cpu_to_le32(0xc0000f00));
741
742 P54U_WRITE(NET2280_DEV_U32,
743 0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
744 P54U_WRITE(NET2280_DEV_U32,
745 0x0020 | (unsigned long)&devreg->direct_mem_win,
746 cpu_to_le32(1));
747
748 P54U_WRITE(NET2280_DEV_U32,
749 0x0024 | (unsigned long)&devreg->direct_mem_win,
750 cpu_to_le32(block_len));
751 P54U_WRITE(NET2280_DEV_U32,
752 0x0028 | (unsigned long)&devreg->direct_mem_win,
753 cpu_to_le32(offset));
754
755 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
756 cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
757 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
758 cpu_to_le32(block_len >> 2));
759 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
760 cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
761
762 mdelay(10);
763
764 P54U_READ(NET2280_DEV_U32,
765 0x002C | (unsigned long)&devreg->direct_mem_win);
766 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
767 !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
768 dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
769 "transfer failed\n");
770 goto fail;
771 }
772
773 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
774 cpu_to_le32(NET2280_FIFO_FLUSH));
775
776 remains -= block_len;
777 data += block_len;
778 offset += block_len;
779 }
780
781
782 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
783 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
784 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
785 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
786 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
787
788 mdelay(20);
789
790 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
791 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
792
793 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
794 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
795
796 mdelay(100);
797
798 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
799 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
800
801
802 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
803 cpu_to_le32(ISL38XX_INT_IDENT_INIT));
804
805 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
806 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
807
808 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
809 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
810 NET2280_USB_INTERRUPT_ENABLE));
811
812 P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
813 cpu_to_le32(ISL38XX_DEV_INT_RESET));
814
815 err = usb_interrupt_msg(priv->udev,
816 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
817 buf, sizeof(__le32), &alen, 1000);
818 if (err || alen != sizeof(__le32))
819 goto fail;
820
821 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
822 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
823
824 if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
825 err = -EINVAL;
826
827 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
828 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
829 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
830
831#undef P54U_WRITE
832#undef P54U_READ
833
834fail:
835 kfree(buf);
836 return err;
837}
838
839static int p54u_load_firmware(struct ieee80211_hw *dev)
840{
841 struct p54u_priv *priv = dev->priv;
842 int err, i;
843
844 BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
845
846 for (i = 0; i < __NUM_P54U_HWTYPES; i++)
847 if (p54u_fwlist[i].type == priv->hw_type)
848 break;
849
850 if (i == __NUM_P54U_HWTYPES)
851 return -EOPNOTSUPP;
852
853 err = request_firmware(&priv->fw, p54u_fwlist[i].fw, &priv->udev->dev);
854 if (err) {
855 dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
856 "(%d)!\n", p54u_fwlist[i].fw, err);
857
858 err = request_firmware(&priv->fw, p54u_fwlist[i].fw_legacy,
859 &priv->udev->dev);
860 if (err)
861 return err;
862 }
863
864 err = p54_parse_firmware(dev, priv->fw);
865 if (err)
866 goto out;
867
868 if (priv->common.fw_interface != p54u_fwlist[i].intf) {
869 dev_err(&priv->udev->dev, "wrong firmware, please get "
870 "a firmware for \"%s\" and try again.\n",
871 p54u_fwlist[i].hw);
872 err = -EINVAL;
873 }
874
875out:
876 if (err)
877 release_firmware(priv->fw);
878
879 return err;
880}
881
882static int p54u_open(struct ieee80211_hw *dev)
883{
884 struct p54u_priv *priv = dev->priv;
885 int err;
886
887 err = p54u_init_urbs(dev);
888 if (err) {
889 return err;
890 }
891
892 priv->common.open = p54u_init_urbs;
893
894 return 0;
895}
896
897static void p54u_stop(struct ieee80211_hw *dev)
898{
899
900
901
902 p54u_free_urbs(dev);
903}
904
905static int __devinit p54u_probe(struct usb_interface *intf,
906 const struct usb_device_id *id)
907{
908 struct usb_device *udev = interface_to_usbdev(intf);
909 struct ieee80211_hw *dev;
910 struct p54u_priv *priv;
911 int err;
912 unsigned int i, recognized_pipes;
913
914 dev = p54_init_common(sizeof(*priv));
915
916 if (!dev) {
917 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
918 return -ENOMEM;
919 }
920
921 priv = dev->priv;
922 priv->hw_type = P54U_INVALID_HW;
923
924 SET_IEEE80211_DEV(dev, &intf->dev);
925 usb_set_intfdata(intf, dev);
926 priv->udev = udev;
927 priv->intf = intf;
928 skb_queue_head_init(&priv->rx_queue);
929 init_usb_anchor(&priv->submitted);
930
931 usb_get_dev(udev);
932
933
934
935 i = intf->altsetting->desc.bNumEndpoints;
936 recognized_pipes = 0;
937 while (i--) {
938 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
939 case P54U_PIPE_DATA:
940 case P54U_PIPE_MGMT:
941 case P54U_PIPE_BRG:
942 case P54U_PIPE_DEV:
943 case P54U_PIPE_DATA | USB_DIR_IN:
944 case P54U_PIPE_MGMT | USB_DIR_IN:
945 case P54U_PIPE_BRG | USB_DIR_IN:
946 case P54U_PIPE_DEV | USB_DIR_IN:
947 case P54U_PIPE_INT | USB_DIR_IN:
948 recognized_pipes++;
949 }
950 }
951 priv->common.open = p54u_open;
952 priv->common.stop = p54u_stop;
953 if (recognized_pipes < P54U_PIPE_NUMBER) {
954#ifdef CONFIG_PM
955
956 udev->reset_resume = 1;
957#endif
958 err = p54u_device_reset(dev);
959
960 priv->hw_type = P54U_3887;
961 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
962 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
963 priv->common.tx = p54u_tx_lm87;
964 priv->upload_fw = p54u_upload_firmware_3887;
965 } else {
966 priv->hw_type = P54U_NET2280;
967 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
968 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
969 priv->common.tx = p54u_tx_net2280;
970 priv->upload_fw = p54u_upload_firmware_net2280;
971 }
972 err = p54u_load_firmware(dev);
973 if (err)
974 goto err_free_dev;
975
976 err = priv->upload_fw(dev);
977 if (err)
978 goto err_free_fw;
979
980 p54u_open(dev);
981 err = p54_read_eeprom(dev);
982 p54u_stop(dev);
983 if (err)
984 goto err_free_fw;
985
986 err = p54_register_common(dev, &udev->dev);
987 if (err)
988 goto err_free_fw;
989
990 return 0;
991
992err_free_fw:
993 release_firmware(priv->fw);
994
995err_free_dev:
996 p54_free_common(dev);
997 usb_set_intfdata(intf, NULL);
998 usb_put_dev(udev);
999 return err;
1000}
1001
1002static void __devexit p54u_disconnect(struct usb_interface *intf)
1003{
1004 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1005 struct p54u_priv *priv;
1006
1007 if (!dev)
1008 return;
1009
1010 p54_unregister_common(dev);
1011
1012 priv = dev->priv;
1013 usb_put_dev(interface_to_usbdev(intf));
1014 release_firmware(priv->fw);
1015 p54_free_common(dev);
1016}
1017
1018static int p54u_pre_reset(struct usb_interface *intf)
1019{
1020 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1021
1022 if (!dev)
1023 return -ENODEV;
1024
1025 p54u_stop(dev);
1026 return 0;
1027}
1028
1029static int p54u_resume(struct usb_interface *intf)
1030{
1031 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1032 struct p54u_priv *priv;
1033
1034 if (!dev)
1035 return -ENODEV;
1036
1037 priv = dev->priv;
1038 if (unlikely(!(priv->upload_fw && priv->fw)))
1039 return 0;
1040
1041 return priv->upload_fw(dev);
1042}
1043
1044static int p54u_post_reset(struct usb_interface *intf)
1045{
1046 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1047 struct p54u_priv *priv;
1048 int err;
1049
1050 err = p54u_resume(intf);
1051 if (err)
1052 return err;
1053
1054
1055 priv = dev->priv;
1056 if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
1057 ieee80211_restart_hw(dev);
1058
1059 return 0;
1060}
1061
1062#ifdef CONFIG_PM
1063
1064static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
1065{
1066 return p54u_pre_reset(intf);
1067}
1068
1069#endif
1070
1071static struct usb_driver p54u_driver = {
1072 .name = "p54usb",
1073 .id_table = p54u_table,
1074 .probe = p54u_probe,
1075 .disconnect = p54u_disconnect,
1076 .pre_reset = p54u_pre_reset,
1077 .post_reset = p54u_post_reset,
1078#ifdef CONFIG_PM
1079 .suspend = p54u_suspend,
1080 .resume = p54u_resume,
1081 .reset_resume = p54u_resume,
1082#endif
1083 .soft_unbind = 1,
1084};
1085
1086module_usb_driver(p54u_driver);
1087
