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15#include <linux/init.h>
16#include <linux/usb.h>
17#include <linux/pci.h>
18#include <linux/firmware.h>
19#include <linux/etherdevice.h>
20#include <linux/delay.h>
21#include <linux/crc32.h>
22#include <net/mac80211.h>
23
24#include "p54.h"
25#include "p54usb.h"
26
27MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
28MODULE_DESCRIPTION("Prism54 USB wireless driver");
29MODULE_LICENSE("GPL");
30MODULE_ALIAS("prism54usb");
31MODULE_FIRMWARE("isl3886usb");
32MODULE_FIRMWARE("isl3887usb");
33
34static struct usb_device_id p54u_table[] __devinitdata = {
35
36 {USB_DEVICE(0x0506, 0x0a11)},
37 {USB_DEVICE(0x0707, 0xee06)},
38 {USB_DEVICE(0x083a, 0x4501)},
39 {USB_DEVICE(0x083a, 0x4502)},
40 {USB_DEVICE(0x083a, 0x5501)},
41 {USB_DEVICE(0x0846, 0x4200)},
42 {USB_DEVICE(0x0846, 0x4210)},
43 {USB_DEVICE(0x0846, 0x4220)},
44 {USB_DEVICE(0x09aa, 0x1000)},
45 {USB_DEVICE(0x0cde, 0x0006)},
46 {USB_DEVICE(0x124a, 0x4023)},
47 {USB_DEVICE(0x1915, 0x2234)},
48 {USB_DEVICE(0x1915, 0x2235)},
49 {USB_DEVICE(0x2001, 0x3701)},
50 {USB_DEVICE(0x2001, 0x3703)},
51 {USB_DEVICE(0x5041, 0x2234)},
52 {USB_DEVICE(0x5041, 0x2235)},
53
54
55 {USB_DEVICE(0x0471, 0x1230)},
56 {USB_DEVICE(0x050d, 0x7050)},
57 {USB_DEVICE(0x0572, 0x2000)},
58 {USB_DEVICE(0x0572, 0x2002)},
59 {USB_DEVICE(0x06b9, 0x0121)},
60 {USB_DEVICE(0x0707, 0xee13)},
61 {USB_DEVICE(0x083a, 0x4521)},
62 {USB_DEVICE(0x0846, 0x4240)},
63 {USB_DEVICE(0x0915, 0x2000)},
64 {USB_DEVICE(0x0915, 0x2002)},
65 {USB_DEVICE(0x0baf, 0x0118)},
66 {USB_DEVICE(0x0bf8, 0x1009)},
67 {USB_DEVICE(0x0cde, 0x0006)},
68 {USB_DEVICE(0x0cde, 0x0008)},
69 {USB_DEVICE(0x0d8e, 0x3762)},
70 {USB_DEVICE(0x124a, 0x4025)},
71 {USB_DEVICE(0x1260, 0xee22)},
72 {USB_DEVICE(0x13b1, 0x000a)},
73 {USB_DEVICE(0x13B1, 0x000C)},
74 {USB_DEVICE(0x1413, 0x5400)},
75 {USB_DEVICE(0x1435, 0x0427)},
76 {USB_DEVICE(0x2001, 0x3704)},
77 {USB_DEVICE(0x413c, 0x8102)},
78 {USB_DEVICE(0x413c, 0x8104)},
79 {}
80};
81
82MODULE_DEVICE_TABLE(usb, p54u_table);
83
84static void p54u_rx_cb(struct urb *urb)
85{
86 struct sk_buff *skb = (struct sk_buff *) urb->context;
87 struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
88 struct ieee80211_hw *dev = info->dev;
89 struct p54u_priv *priv = dev->priv;
90
91 skb_unlink(skb, &priv->rx_queue);
92
93 if (unlikely(urb->status)) {
94 dev_kfree_skb_irq(skb);
95 return;
96 }
97
98 skb_put(skb, urb->actual_length);
99
100 if (priv->hw_type == P54U_NET2280)
101 skb_pull(skb, priv->common.tx_hdr_len);
102 if (priv->common.fw_interface == FW_LM87) {
103 skb_pull(skb, 4);
104 skb_put(skb, 4);
105 }
106
107 if (p54_rx(dev, skb)) {
108 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
109 if (unlikely(!skb)) {
110
111 return;
112 }
113
114 info = (struct p54u_rx_info *) skb->cb;
115 info->urb = urb;
116 info->dev = dev;
117 urb->transfer_buffer = skb_tail_pointer(skb);
118 urb->context = skb;
119 } else {
120 if (priv->hw_type == P54U_NET2280)
121 skb_push(skb, priv->common.tx_hdr_len);
122 if (priv->common.fw_interface == FW_LM87) {
123 skb_push(skb, 4);
124 skb_put(skb, 4);
125 }
126 skb_reset_tail_pointer(skb);
127 skb_trim(skb, 0);
128 if (urb->transfer_buffer != skb_tail_pointer(skb)) {
129
130 WARN_ON(1);
131 urb->transfer_buffer = skb_tail_pointer(skb);
132 }
133 }
134 skb_queue_tail(&priv->rx_queue, skb);
135 usb_anchor_urb(urb, &priv->submitted);
136 if (usb_submit_urb(urb, GFP_ATOMIC)) {
137 skb_unlink(skb, &priv->rx_queue);
138 usb_unanchor_urb(urb);
139 dev_kfree_skb_irq(skb);
140 }
141}
142
143static void p54u_tx_cb(struct urb *urb)
144{
145 struct sk_buff *skb = urb->context;
146 struct ieee80211_hw *dev = (struct ieee80211_hw *)
147 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
148
149 p54_free_skb(dev, skb);
150}
151
152static void p54u_tx_dummy_cb(struct urb *urb) { }
153
154static void p54u_free_urbs(struct ieee80211_hw *dev)
155{
156 struct p54u_priv *priv = dev->priv;
157 usb_kill_anchored_urbs(&priv->submitted);
158}
159
160static int p54u_init_urbs(struct ieee80211_hw *dev)
161{
162 struct p54u_priv *priv = dev->priv;
163 struct urb *entry = NULL;
164 struct sk_buff *skb;
165 struct p54u_rx_info *info;
166 int ret = 0;
167
168 while (skb_queue_len(&priv->rx_queue) < 32) {
169 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
170 if (!skb) {
171 ret = -ENOMEM;
172 goto err;
173 }
174 entry = usb_alloc_urb(0, GFP_KERNEL);
175 if (!entry) {
176 ret = -ENOMEM;
177 goto err;
178 }
179
180 usb_fill_bulk_urb(entry, priv->udev,
181 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
182 skb_tail_pointer(skb),
183 priv->common.rx_mtu + 32, p54u_rx_cb, skb);
184 info = (struct p54u_rx_info *) skb->cb;
185 info->urb = entry;
186 info->dev = dev;
187 skb_queue_tail(&priv->rx_queue, skb);
188
189 usb_anchor_urb(entry, &priv->submitted);
190 ret = usb_submit_urb(entry, GFP_KERNEL);
191 if (ret) {
192 skb_unlink(skb, &priv->rx_queue);
193 usb_unanchor_urb(entry);
194 goto err;
195 }
196 usb_free_urb(entry);
197 entry = NULL;
198 }
199
200 return 0;
201
202 err:
203 usb_free_urb(entry);
204 kfree_skb(skb);
205 p54u_free_urbs(dev);
206 return ret;
207}
208
209static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
210{
211 struct p54u_priv *priv = dev->priv;
212 struct urb *addr_urb, *data_urb;
213 int err = 0;
214
215 addr_urb = usb_alloc_urb(0, GFP_ATOMIC);
216 if (!addr_urb)
217 return;
218
219 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
220 if (!data_urb) {
221 usb_free_urb(addr_urb);
222 return;
223 }
224
225 usb_fill_bulk_urb(addr_urb, priv->udev,
226 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
227 &((struct p54_hdr *)skb->data)->req_id, 4,
228 p54u_tx_dummy_cb, dev);
229 usb_fill_bulk_urb(data_urb, priv->udev,
230 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
231 skb->data, skb->len, FREE_AFTER_TX(skb) ?
232 p54u_tx_cb : p54u_tx_dummy_cb, skb);
233 addr_urb->transfer_flags |= URB_ZERO_PACKET;
234 data_urb->transfer_flags |= URB_ZERO_PACKET;
235
236 usb_anchor_urb(addr_urb, &priv->submitted);
237 err = usb_submit_urb(addr_urb, GFP_ATOMIC);
238 if (err) {
239 usb_unanchor_urb(addr_urb);
240 goto out;
241 }
242
243 usb_anchor_urb(data_urb, &priv->submitted);
244 err = usb_submit_urb(data_urb, GFP_ATOMIC);
245 if (err)
246 usb_unanchor_urb(data_urb);
247
248 out:
249 usb_free_urb(addr_urb);
250 usb_free_urb(data_urb);
251
252 if (err)
253 p54_free_skb(dev, skb);
254}
255
256static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
257{
258 u32 chk = 0;
259
260 length >>= 2;
261 while (length--) {
262 chk ^= le32_to_cpu(*data++);
263 chk = (chk >> 5) ^ (chk << 3);
264 }
265
266 return cpu_to_le32(chk);
267}
268
269static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
270{
271 struct p54u_priv *priv = dev->priv;
272 struct urb *data_urb;
273 struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
274
275 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
276 if (!data_urb)
277 return;
278
279 hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
280 hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
281
282 usb_fill_bulk_urb(data_urb, priv->udev,
283 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
284 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
285 p54u_tx_cb : p54u_tx_dummy_cb, skb);
286 data_urb->transfer_flags |= URB_ZERO_PACKET;
287
288 usb_anchor_urb(data_urb, &priv->submitted);
289 if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
290 usb_unanchor_urb(data_urb);
291 p54_free_skb(dev, skb);
292 }
293 usb_free_urb(data_urb);
294}
295
296static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
297{
298 struct p54u_priv *priv = dev->priv;
299 struct urb *int_urb, *data_urb;
300 struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
301 struct net2280_reg_write *reg;
302 int err = 0;
303
304 reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
305 if (!reg)
306 return;
307
308 int_urb = usb_alloc_urb(0, GFP_ATOMIC);
309 if (!int_urb) {
310 kfree(reg);
311 return;
312 }
313
314 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
315 if (!data_urb) {
316 kfree(reg);
317 usb_free_urb(int_urb);
318 return;
319 }
320
321 reg->port = cpu_to_le16(NET2280_DEV_U32);
322 reg->addr = cpu_to_le32(P54U_DEV_BASE);
323 reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
324
325 memset(hdr, 0, sizeof(*hdr));
326 hdr->len = cpu_to_le16(skb->len);
327 hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
328
329 usb_fill_bulk_urb(int_urb, priv->udev,
330 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
331 p54u_tx_dummy_cb, dev);
332
333
334
335
336
337
338 int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
339
340 usb_fill_bulk_urb(data_urb, priv->udev,
341 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
342 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
343 p54u_tx_cb : p54u_tx_dummy_cb, skb);
344 data_urb->transfer_flags |= URB_ZERO_PACKET;
345
346 usb_anchor_urb(int_urb, &priv->submitted);
347 err = usb_submit_urb(int_urb, GFP_ATOMIC);
348 if (err) {
349 usb_unanchor_urb(int_urb);
350 goto out;
351 }
352
353 usb_anchor_urb(data_urb, &priv->submitted);
354 err = usb_submit_urb(data_urb, GFP_ATOMIC);
355 if (err) {
356 usb_unanchor_urb(data_urb);
357 goto out;
358 }
359 out:
360 usb_free_urb(int_urb);
361 usb_free_urb(data_urb);
362
363 if (err) {
364 skb_pull(skb, sizeof(*hdr));
365 p54_free_skb(dev, skb);
366 }
367}
368
369static int p54u_write(struct p54u_priv *priv,
370 struct net2280_reg_write *buf,
371 enum net2280_op_type type,
372 __le32 addr, __le32 val)
373{
374 unsigned int ep;
375 int alen;
376
377 if (type & 0x0800)
378 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
379 else
380 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
381
382 buf->port = cpu_to_le16(type);
383 buf->addr = addr;
384 buf->val = val;
385
386 return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
387}
388
389static int p54u_read(struct p54u_priv *priv, void *buf,
390 enum net2280_op_type type,
391 __le32 addr, __le32 *val)
392{
393 struct net2280_reg_read *read = buf;
394 __le32 *reg = buf;
395 unsigned int ep;
396 int alen, err;
397
398 if (type & 0x0800)
399 ep = P54U_PIPE_DEV;
400 else
401 ep = P54U_PIPE_BRG;
402
403 read->port = cpu_to_le16(type);
404 read->addr = addr;
405
406 err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
407 read, sizeof(*read), &alen, 1000);
408 if (err)
409 return err;
410
411 err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
412 reg, sizeof(*reg), &alen, 1000);
413 if (err)
414 return err;
415
416 *val = *reg;
417 return 0;
418}
419
420static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
421 void *data, size_t len)
422{
423 int alen;
424 return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
425 data, len, &alen, 2000);
426}
427
428static const char p54u_romboot_3887[] = "~~~~";
429static const char p54u_firmware_upload_3887[] = "<\r";
430
431static int p54u_device_reset_3887(struct ieee80211_hw *dev)
432{
433 struct p54u_priv *priv = dev->priv;
434 int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
435 u8 buf[4];
436
437 if (lock) {
438 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
439 if (ret < 0) {
440 dev_err(&priv->udev->dev, "(p54usb) unable to lock "
441 " device for reset: %d\n", ret);
442 return ret;
443 }
444 }
445
446 ret = usb_reset_device(priv->udev);
447 if (lock)
448 usb_unlock_device(priv->udev);
449
450 if (ret) {
451 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
452 "device: %d\n", ret);
453 return ret;
454 }
455
456 memcpy(&buf, p54u_romboot_3887, sizeof(buf));
457 ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
458 buf, sizeof(buf));
459 if (ret)
460 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
461 "boot ROM: %d\n", ret);
462
463 return ret;
464}
465
466static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
467{
468 struct p54u_priv *priv = dev->priv;
469 const struct firmware *fw_entry = NULL;
470 int err, alen;
471 u8 carry = 0;
472 u8 *buf, *tmp;
473 const u8 *data;
474 unsigned int left, remains, block_size;
475 struct x2_header *hdr;
476 unsigned long timeout;
477
478 tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
479 if (!buf) {
480 dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware"
481 "upload buffer!\n");
482 err = -ENOMEM;
483 goto err_bufalloc;
484 }
485
486 err = p54u_device_reset_3887(dev);
487 if (err)
488 goto err_reset;
489
490 err = request_firmware(&fw_entry, "isl3887usb", &priv->udev->dev);
491 if (err) {
492 dev_err(&priv->udev->dev, "p54usb: cannot find firmware "
493 "(isl3887usb)\n");
494 err = request_firmware(&fw_entry, "isl3887usb_bare",
495 &priv->udev->dev);
496 if (err)
497 goto err_req_fw_failed;
498 }
499
500 err = p54_parse_firmware(dev, fw_entry);
501 if (err)
502 goto err_upload_failed;
503
504 if (priv->common.fw_interface != FW_LM87) {
505 dev_err(&priv->udev->dev, "wrong firmware, "
506 "please get a LM87 firmware and try again.\n");
507 err = -EINVAL;
508 goto err_upload_failed;
509 }
510
511 left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size);
512 strcpy(buf, p54u_firmware_upload_3887);
513 left -= strlen(p54u_firmware_upload_3887);
514 tmp += strlen(p54u_firmware_upload_3887);
515
516 data = fw_entry->data;
517 remains = fw_entry->size;
518
519 hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
520 memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
521 hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
522 hdr->fw_length = cpu_to_le32(fw_entry->size);
523 hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
524 sizeof(u32)*2));
525 left -= sizeof(*hdr);
526 tmp += sizeof(*hdr);
527
528 while (remains) {
529 while (left--) {
530 if (carry) {
531 *tmp++ = carry;
532 carry = 0;
533 remains--;
534 continue;
535 }
536 switch (*data) {
537 case '~':
538 *tmp++ = '}';
539 carry = '^';
540 break;
541 case '}':
542 *tmp++ = '}';
543 carry = ']';
544 break;
545 default:
546 *tmp++ = *data;
547 remains--;
548 break;
549 }
550 data++;
551 }
552
553 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
554 if (err) {
555 dev_err(&priv->udev->dev, "(p54usb) firmware "
556 "upload failed!\n");
557 goto err_upload_failed;
558 }
559
560 tmp = buf;
561 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
562 }
563
564 *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, fw_entry->data, fw_entry->size));
565 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
566 if (err) {
567 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
568 goto err_upload_failed;
569 }
570 timeout = jiffies + msecs_to_jiffies(1000);
571 while (!(err = usb_bulk_msg(priv->udev,
572 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
573 if (alen > 2 && !memcmp(buf, "OK", 2))
574 break;
575
576 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
577 err = -EINVAL;
578 break;
579 }
580
581 if (time_after(jiffies, timeout)) {
582 dev_err(&priv->udev->dev, "(p54usb) firmware boot "
583 "timed out!\n");
584 err = -ETIMEDOUT;
585 break;
586 }
587 }
588 if (err) {
589 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
590 goto err_upload_failed;
591 }
592
593 buf[0] = 'g';
594 buf[1] = '\r';
595 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
596 if (err) {
597 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
598 goto err_upload_failed;
599 }
600
601 timeout = jiffies + msecs_to_jiffies(1000);
602 while (!(err = usb_bulk_msg(priv->udev,
603 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
604 if (alen > 0 && buf[0] == 'g')
605 break;
606
607 if (time_after(jiffies, timeout)) {
608 err = -ETIMEDOUT;
609 break;
610 }
611 }
612 if (err)
613 goto err_upload_failed;
614
615 err_upload_failed:
616 release_firmware(fw_entry);
617 err_req_fw_failed:
618 err_reset:
619 kfree(buf);
620 err_bufalloc:
621 return err;
622}
623
624static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
625{
626 struct p54u_priv *priv = dev->priv;
627 const struct firmware *fw_entry = NULL;
628 const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
629 int err, alen;
630 void *buf;
631 __le32 reg;
632 unsigned int remains, offset;
633 const u8 *data;
634
635 buf = kmalloc(512, GFP_KERNEL);
636 if (!buf) {
637 dev_err(&priv->udev->dev, "(p54usb) firmware buffer "
638 "alloc failed!\n");
639 return -ENOMEM;
640 }
641
642 err = request_firmware(&fw_entry, "isl3886usb", &priv->udev->dev);
643 if (err) {
644 dev_err(&priv->udev->dev, "(p54usb) cannot find firmware "
645 "(isl3886usb)\n");
646 err = request_firmware(&fw_entry, "isl3890usb",
647 &priv->udev->dev);
648 if (err) {
649 kfree(buf);
650 return err;
651 }
652 }
653
654 err = p54_parse_firmware(dev, fw_entry);
655 if (err) {
656 kfree(buf);
657 release_firmware(fw_entry);
658 return err;
659 }
660
661 if (priv->common.fw_interface != FW_LM86) {
662 dev_err(&priv->udev->dev, "wrong firmware, "
663 "please get a LM86(USB) firmware and try again.\n");
664 kfree(buf);
665 release_firmware(fw_entry);
666 return -EINVAL;
667 }
668
669#define P54U_WRITE(type, addr, data) \
670 do {\
671 err = p54u_write(priv, buf, type,\
672 cpu_to_le32((u32)(unsigned long)addr), data);\
673 if (err) \
674 goto fail;\
675 } while (0)
676
677#define P54U_READ(type, addr) \
678 do {\
679 err = p54u_read(priv, buf, type,\
680 cpu_to_le32((u32)(unsigned long)addr), ®);\
681 if (err)\
682 goto fail;\
683 } while (0)
684
685
686 P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
687 reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
688 reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
689 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
690
691 mdelay(100);
692
693
694 reg |= cpu_to_le32(P54U_BRG_POWER_UP);
695 reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
696 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
697
698 mdelay(100);
699
700 P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
701 cpu_to_le32(NET2280_CLK_30Mhz |
702 NET2280_PCI_ENABLE |
703 NET2280_PCI_SOFT_RESET));
704
705 mdelay(20);
706
707 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
708 cpu_to_le32(PCI_COMMAND_MEMORY |
709 PCI_COMMAND_MASTER));
710
711 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
712 cpu_to_le32(NET2280_BASE));
713
714 P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
715 reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
716 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
717
718
719 P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
720
721 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
722 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
723 P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
724 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
725
726 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
727 cpu_to_le32(NET2280_BASE2));
728
729
730
731 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
732 cpu_to_le32(PCI_COMMAND_MEMORY |
733 PCI_COMMAND_MASTER));
734
735 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 , 0);
736 P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
737 cpu_to_le32(P54U_DEV_BASE));
738
739 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
740 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
741 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
742
743
744 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
745
746 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
747 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
748 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
749 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
750 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
751
752 mdelay(20);
753
754 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
755 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
756
757 mdelay(20);
758
759 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
760 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
761
762 mdelay(100);
763
764 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
765 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
766
767
768 remains = fw_entry->size;
769 data = fw_entry->data;
770 offset = ISL38XX_DEV_FIRMWARE_ADDR;
771
772 while (remains) {
773 unsigned int block_len = min(remains, (unsigned int)512);
774 memcpy(buf, data, block_len);
775
776 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
777 if (err) {
778 dev_err(&priv->udev->dev, "(p54usb) firmware block "
779 "upload failed\n");
780 goto fail;
781 }
782
783 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
784 cpu_to_le32(0xc0000f00));
785
786 P54U_WRITE(NET2280_DEV_U32,
787 0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
788 P54U_WRITE(NET2280_DEV_U32,
789 0x0020 | (unsigned long)&devreg->direct_mem_win,
790 cpu_to_le32(1));
791
792 P54U_WRITE(NET2280_DEV_U32,
793 0x0024 | (unsigned long)&devreg->direct_mem_win,
794 cpu_to_le32(block_len));
795 P54U_WRITE(NET2280_DEV_U32,
796 0x0028 | (unsigned long)&devreg->direct_mem_win,
797 cpu_to_le32(offset));
798
799 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
800 cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
801 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
802 cpu_to_le32(block_len >> 2));
803 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
804 cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
805
806 mdelay(10);
807
808 P54U_READ(NET2280_DEV_U32,
809 0x002C | (unsigned long)&devreg->direct_mem_win);
810 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
811 !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
812 dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
813 "transfer failed\n");
814 goto fail;
815 }
816
817 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
818 cpu_to_le32(NET2280_FIFO_FLUSH));
819
820 remains -= block_len;
821 data += block_len;
822 offset += block_len;
823 }
824
825
826 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
827 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
828 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
829 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
830 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
831
832 mdelay(20);
833
834 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
835 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
836
837 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
838 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
839
840 mdelay(100);
841
842 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
843 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
844
845
846 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
847 cpu_to_le32(ISL38XX_INT_IDENT_INIT));
848
849 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
850 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
851
852 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
853 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
854 NET2280_USB_INTERRUPT_ENABLE));
855
856 P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
857 cpu_to_le32(ISL38XX_DEV_INT_RESET));
858
859 err = usb_interrupt_msg(priv->udev,
860 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
861 buf, sizeof(__le32), &alen, 1000);
862 if (err || alen != sizeof(__le32))
863 goto fail;
864
865 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
866 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
867
868 if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
869 err = -EINVAL;
870
871 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
872 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
873 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
874
875#undef P54U_WRITE
876#undef P54U_READ
877
878 fail:
879 release_firmware(fw_entry);
880 kfree(buf);
881 return err;
882}
883
884static int p54u_open(struct ieee80211_hw *dev)
885{
886 struct p54u_priv *priv = dev->priv;
887 int err;
888
889 err = p54u_init_urbs(dev);
890 if (err) {
891 return err;
892 }
893
894 priv->common.open = p54u_init_urbs;
895
896 return 0;
897}
898
899static void p54u_stop(struct ieee80211_hw *dev)
900{
901
902
903
904 p54u_free_urbs(dev);
905 return;
906}
907
908static int __devinit p54u_probe(struct usb_interface *intf,
909 const struct usb_device_id *id)
910{
911 struct usb_device *udev = interface_to_usbdev(intf);
912 struct ieee80211_hw *dev;
913 struct p54u_priv *priv;
914 int err;
915 unsigned int i, recognized_pipes;
916
917 dev = p54_init_common(sizeof(*priv));
918
919 if (!dev) {
920 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
921 return -ENOMEM;
922 }
923
924 priv = dev->priv;
925
926 SET_IEEE80211_DEV(dev, &intf->dev);
927 usb_set_intfdata(intf, dev);
928 priv->udev = udev;
929 priv->intf = intf;
930 skb_queue_head_init(&priv->rx_queue);
931 init_usb_anchor(&priv->submitted);
932
933 usb_get_dev(udev);
934
935
936
937 i = intf->altsetting->desc.bNumEndpoints;
938 recognized_pipes = 0;
939 while (i--) {
940 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
941 case P54U_PIPE_DATA:
942 case P54U_PIPE_MGMT:
943 case P54U_PIPE_BRG:
944 case P54U_PIPE_DEV:
945 case P54U_PIPE_DATA | USB_DIR_IN:
946 case P54U_PIPE_MGMT | USB_DIR_IN:
947 case P54U_PIPE_BRG | USB_DIR_IN:
948 case P54U_PIPE_DEV | USB_DIR_IN:
949 case P54U_PIPE_INT | USB_DIR_IN:
950 recognized_pipes++;
951 }
952 }
953 priv->common.open = p54u_open;
954 priv->common.stop = p54u_stop;
955 if (recognized_pipes < P54U_PIPE_NUMBER) {
956 priv->hw_type = P54U_3887;
957 err = p54u_upload_firmware_3887(dev);
958 if (priv->common.fw_interface == FW_LM87) {
959 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
960 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
961 priv->common.tx = p54u_tx_lm87;
962 } else
963 priv->common.tx = p54u_tx_3887;
964 } else {
965 priv->hw_type = P54U_NET2280;
966 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
967 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
968 priv->common.tx = p54u_tx_net2280;
969 err = p54u_upload_firmware_net2280(dev);
970 }
971 if (err)
972 goto err_free_dev;
973
974 p54u_open(dev);
975 err = p54_read_eeprom(dev);
976 p54u_stop(dev);
977 if (err)
978 goto err_free_dev;
979
980 err = p54_register_common(dev, &udev->dev);
981 if (err)
982 goto err_free_dev;
983
984 return 0;
985
986 err_free_dev:
987 ieee80211_free_hw(dev);
988 usb_set_intfdata(intf, NULL);
989 usb_put_dev(udev);
990 return err;
991}
992
993static void __devexit p54u_disconnect(struct usb_interface *intf)
994{
995 struct ieee80211_hw *dev = usb_get_intfdata(intf);
996 struct p54u_priv *priv;
997
998 if (!dev)
999 return;
1000
1001 ieee80211_unregister_hw(dev);
1002
1003 priv = dev->priv;
1004 usb_put_dev(interface_to_usbdev(intf));
1005 p54_free_common(dev);
1006 ieee80211_free_hw(dev);
1007}
1008
1009static int p54u_pre_reset(struct usb_interface *intf)
1010{
1011 return 0;
1012}
1013
1014static int p54u_post_reset(struct usb_interface *intf)
1015{
1016 return 0;
1017}
1018
1019static struct usb_driver p54u_driver = {
1020 .name = "p54usb",
1021 .id_table = p54u_table,
1022 .probe = p54u_probe,
1023 .disconnect = p54u_disconnect,
1024 .pre_reset = p54u_pre_reset,
1025 .post_reset = p54u_post_reset,
1026 .soft_unbind = 1,
1027};
1028
1029static int __init p54u_init(void)
1030{
1031 return usb_register(&p54u_driver);
1032}
1033
1034static void __exit p54u_exit(void)
1035{
1036 usb_deregister(&p54u_driver);
1037}
1038
1039module_init(p54u_init);
1040module_exit(p54u_exit);
1041
