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eff1a59c MW |
1 | |
2 | /* | |
3 | * Linux device driver for USB based Prism54 | |
4 | * | |
5 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> | |
6 | * | |
7 | * Based on the islsm (softmac prism54) driver, which is: | |
8 | * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
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 | ||
27 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); | |
28 | MODULE_DESCRIPTION("Prism54 USB wireless driver"); | |
29 | MODULE_LICENSE("GPL"); | |
30 | MODULE_ALIAS("prism54usb"); | |
31 | ||
32 | static struct usb_device_id p54u_table[] __devinitdata = { | |
33 | /* Version 1 devices (pci chip + net2280) */ | |
34 | {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */ | |
35 | {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */ | |
36 | {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */ | |
37 | {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */ | |
38 | {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */ | |
39 | {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */ | |
40 | {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */ | |
41 | {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */ | |
42 | {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */ | |
43 | {USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */ | |
44 | {USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */ | |
45 | {USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */ | |
46 | {USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */ | |
47 | {USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */ | |
48 | {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */ | |
49 | ||
50 | /* Version 2 devices (3887) */ | |
51 | {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */ | |
52 | {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */ | |
53 | {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */ | |
54 | {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */ | |
55 | {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */ | |
56 | {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */ | |
57 | {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */ | |
58 | {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */ | |
59 | {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/ | |
60 | {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/ | |
61 | {USB_DEVICE(0x0cde, 0x0006)}, /* Medion MD40900 */ | |
62 | {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */ | |
63 | {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */ | |
64 | {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */ | |
c1098103 | 65 | {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */ |
eff1a59c MW |
66 | {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ |
67 | {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ | |
68 | {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ | |
69 | {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ | |
70 | {} | |
71 | }; | |
72 | ||
73 | MODULE_DEVICE_TABLE(usb, p54u_table); | |
74 | ||
75 | static void p54u_rx_cb(struct urb *urb) | |
76 | { | |
77 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
78 | struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb; | |
79 | struct ieee80211_hw *dev = info->dev; | |
80 | struct p54u_priv *priv = dev->priv; | |
81 | ||
82 | if (unlikely(urb->status)) { | |
83 | info->urb = NULL; | |
84 | usb_free_urb(urb); | |
85 | return; | |
86 | } | |
87 | ||
88 | skb_unlink(skb, &priv->rx_queue); | |
89 | skb_put(skb, urb->actual_length); | |
90 | if (!priv->hw_type) | |
91 | skb_pull(skb, sizeof(struct net2280_tx_hdr)); | |
92 | ||
93 | if (p54_rx(dev, skb)) { | |
94 | skb = dev_alloc_skb(MAX_RX_SIZE); | |
95 | if (unlikely(!skb)) { | |
96 | usb_free_urb(urb); | |
97 | /* TODO check rx queue length and refill *somewhere* */ | |
98 | return; | |
99 | } | |
100 | ||
101 | info = (struct p54u_rx_info *) skb->cb; | |
102 | info->urb = urb; | |
103 | info->dev = dev; | |
104 | urb->transfer_buffer = skb_tail_pointer(skb); | |
105 | urb->context = skb; | |
106 | skb_queue_tail(&priv->rx_queue, skb); | |
107 | } else { | |
108 | skb_trim(skb, 0); | |
109 | skb_queue_tail(&priv->rx_queue, skb); | |
110 | } | |
111 | ||
112 | usb_submit_urb(urb, GFP_ATOMIC); | |
113 | } | |
114 | ||
115 | static void p54u_tx_cb(struct urb *urb) | |
116 | { | |
117 | usb_free_urb(urb); | |
118 | } | |
119 | ||
120 | static void p54u_tx_free_cb(struct urb *urb) | |
121 | { | |
122 | kfree(urb->transfer_buffer); | |
123 | usb_free_urb(urb); | |
124 | } | |
125 | ||
126 | static int p54u_init_urbs(struct ieee80211_hw *dev) | |
127 | { | |
128 | struct p54u_priv *priv = dev->priv; | |
129 | struct urb *entry; | |
130 | struct sk_buff *skb; | |
131 | struct p54u_rx_info *info; | |
132 | ||
133 | while (skb_queue_len(&priv->rx_queue) < 32) { | |
134 | skb = __dev_alloc_skb(MAX_RX_SIZE, GFP_KERNEL); | |
135 | if (!skb) | |
136 | break; | |
137 | entry = usb_alloc_urb(0, GFP_KERNEL); | |
138 | if (!entry) { | |
139 | kfree_skb(skb); | |
140 | break; | |
141 | } | |
142 | usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), skb_tail_pointer(skb), MAX_RX_SIZE, p54u_rx_cb, skb); | |
143 | info = (struct p54u_rx_info *) skb->cb; | |
144 | info->urb = entry; | |
145 | info->dev = dev; | |
146 | skb_queue_tail(&priv->rx_queue, skb); | |
147 | usb_submit_urb(entry, GFP_KERNEL); | |
148 | } | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | static void p54u_free_urbs(struct ieee80211_hw *dev) | |
154 | { | |
155 | struct p54u_priv *priv = dev->priv; | |
156 | struct p54u_rx_info *info; | |
157 | struct sk_buff *skb; | |
158 | ||
159 | while ((skb = skb_dequeue(&priv->rx_queue))) { | |
160 | info = (struct p54u_rx_info *) skb->cb; | |
161 | if (!info->urb) | |
162 | continue; | |
163 | ||
164 | usb_kill_urb(info->urb); | |
165 | kfree_skb(skb); | |
166 | } | |
167 | } | |
168 | ||
169 | static void p54u_tx_3887(struct ieee80211_hw *dev, struct p54_control_hdr *data, | |
170 | size_t len, int free_on_tx) | |
171 | { | |
172 | struct p54u_priv *priv = dev->priv; | |
173 | struct urb *addr_urb, *data_urb; | |
174 | ||
175 | addr_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
176 | if (!addr_urb) | |
177 | return; | |
178 | ||
179 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
180 | if (!data_urb) { | |
181 | usb_free_urb(addr_urb); | |
182 | return; | |
183 | } | |
184 | ||
185 | usb_fill_bulk_urb(addr_urb, priv->udev, | |
186 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), &data->req_id, | |
187 | sizeof(data->req_id), p54u_tx_cb, dev); | |
188 | usb_fill_bulk_urb(data_urb, priv->udev, | |
189 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), data, len, | |
190 | free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev); | |
191 | ||
192 | usb_submit_urb(addr_urb, GFP_ATOMIC); | |
193 | usb_submit_urb(data_urb, GFP_ATOMIC); | |
194 | } | |
195 | ||
196 | static void p54u_tx_net2280(struct ieee80211_hw *dev, struct p54_control_hdr *data, | |
197 | size_t len, int free_on_tx) | |
198 | { | |
199 | struct p54u_priv *priv = dev->priv; | |
200 | struct urb *int_urb, *data_urb; | |
201 | struct net2280_tx_hdr *hdr; | |
202 | struct net2280_reg_write *reg; | |
203 | ||
204 | reg = kmalloc(sizeof(*reg), GFP_ATOMIC); | |
205 | if (!reg) | |
206 | return; | |
207 | ||
208 | int_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
209 | if (!int_urb) { | |
210 | kfree(reg); | |
211 | return; | |
212 | } | |
213 | ||
214 | data_urb = usb_alloc_urb(0, GFP_ATOMIC); | |
215 | if (!data_urb) { | |
216 | kfree(reg); | |
217 | usb_free_urb(int_urb); | |
218 | return; | |
219 | } | |
220 | ||
221 | reg->port = cpu_to_le16(NET2280_DEV_U32); | |
222 | reg->addr = cpu_to_le32(P54U_DEV_BASE); | |
223 | reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA); | |
224 | ||
225 | len += sizeof(*data); | |
226 | hdr = (void *)data - sizeof(*hdr); | |
227 | memset(hdr, 0, sizeof(*hdr)); | |
228 | hdr->device_addr = data->req_id; | |
229 | hdr->len = cpu_to_le16(len); | |
230 | ||
231 | usb_fill_bulk_urb(int_urb, priv->udev, | |
232 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg), | |
233 | p54u_tx_free_cb, dev); | |
234 | usb_submit_urb(int_urb, GFP_ATOMIC); | |
235 | ||
236 | usb_fill_bulk_urb(data_urb, priv->udev, | |
237 | usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA), hdr, len + sizeof(*hdr), | |
238 | free_on_tx ? p54u_tx_free_cb : p54u_tx_cb, dev); | |
239 | usb_submit_urb(data_urb, GFP_ATOMIC); | |
240 | } | |
241 | ||
242 | static int p54u_write(struct p54u_priv *priv, | |
243 | struct net2280_reg_write *buf, | |
244 | enum net2280_op_type type, | |
245 | __le32 addr, __le32 val) | |
246 | { | |
247 | unsigned int ep; | |
248 | int alen; | |
249 | ||
250 | if (type & 0x0800) | |
251 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV); | |
252 | else | |
253 | ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG); | |
254 | ||
255 | buf->port = cpu_to_le16(type); | |
256 | buf->addr = addr; | |
257 | buf->val = val; | |
258 | ||
259 | return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000); | |
260 | } | |
261 | ||
262 | static int p54u_read(struct p54u_priv *priv, void *buf, | |
263 | enum net2280_op_type type, | |
264 | __le32 addr, __le32 *val) | |
265 | { | |
266 | struct net2280_reg_read *read = buf; | |
267 | __le32 *reg = buf; | |
268 | unsigned int ep; | |
269 | int alen, err; | |
270 | ||
271 | if (type & 0x0800) | |
272 | ep = P54U_PIPE_DEV; | |
273 | else | |
274 | ep = P54U_PIPE_BRG; | |
275 | ||
276 | read->port = cpu_to_le16(type); | |
277 | read->addr = addr; | |
278 | ||
279 | err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), | |
280 | read, sizeof(*read), &alen, 1000); | |
281 | if (err) | |
282 | return err; | |
283 | ||
284 | err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep), | |
285 | reg, sizeof(*reg), &alen, 1000); | |
286 | if (err) | |
287 | return err; | |
288 | ||
289 | *val = *reg; | |
290 | return 0; | |
291 | } | |
292 | ||
293 | static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep, | |
294 | void *data, size_t len) | |
295 | { | |
296 | int alen; | |
297 | return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep), | |
298 | data, len, &alen, 2000); | |
299 | } | |
300 | ||
301 | static int p54u_read_eeprom(struct ieee80211_hw *dev) | |
302 | { | |
303 | struct p54u_priv *priv = dev->priv; | |
304 | void *buf; | |
305 | struct p54_control_hdr *hdr; | |
306 | int err, alen; | |
307 | size_t offset = priv->hw_type ? 0x10 : 0x20; | |
308 | ||
309 | buf = kmalloc(0x2020, GFP_KERNEL); | |
310 | if (!buf) { | |
8376e7a3 | 311 | printk(KERN_ERR "prism54usb: cannot allocate memory for " |
eff1a59c MW |
312 | "eeprom readback!\n"); |
313 | return -ENOMEM; | |
314 | } | |
315 | ||
316 | if (priv->hw_type) { | |
317 | *((u32 *) buf) = priv->common.rx_start; | |
318 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); | |
319 | if (err) { | |
320 | printk(KERN_ERR "prism54usb: addr send failed\n"); | |
321 | goto fail; | |
322 | } | |
323 | } else { | |
324 | struct net2280_reg_write *reg = buf; | |
325 | reg->port = cpu_to_le16(NET2280_DEV_U32); | |
326 | reg->addr = cpu_to_le32(P54U_DEV_BASE); | |
327 | reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA); | |
328 | err = p54u_bulk_msg(priv, P54U_PIPE_DEV, buf, sizeof(*reg)); | |
329 | if (err) { | |
330 | printk(KERN_ERR "prism54usb: dev_int send failed\n"); | |
331 | goto fail; | |
332 | } | |
333 | } | |
334 | ||
335 | hdr = buf + priv->common.tx_hdr_len; | |
336 | p54_fill_eeprom_readback(hdr); | |
337 | hdr->req_id = cpu_to_le32(priv->common.rx_start); | |
338 | if (priv->common.tx_hdr_len) { | |
339 | struct net2280_tx_hdr *tx_hdr = buf; | |
340 | tx_hdr->device_addr = hdr->req_id; | |
341 | tx_hdr->len = cpu_to_le16(EEPROM_READBACK_LEN); | |
342 | } | |
343 | ||
344 | /* we can just pretend to send 0x2000 bytes of nothing in the headers */ | |
345 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, | |
346 | EEPROM_READBACK_LEN + priv->common.tx_hdr_len); | |
347 | if (err) { | |
348 | printk(KERN_ERR "prism54usb: eeprom req send failed\n"); | |
349 | goto fail; | |
350 | } | |
351 | ||
352 | err = usb_bulk_msg(priv->udev, | |
353 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), | |
354 | buf, 0x2020, &alen, 1000); | |
355 | if (!err && alen > offset) { | |
356 | p54_parse_eeprom(dev, (u8 *)buf + offset, alen - offset); | |
357 | } else { | |
358 | printk(KERN_ERR "prism54usb: eeprom read failed!\n"); | |
359 | err = -EINVAL; | |
360 | goto fail; | |
361 | } | |
362 | ||
363 | fail: | |
364 | kfree(buf); | |
365 | return err; | |
366 | } | |
367 | ||
368 | static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) | |
369 | { | |
370 | static char start_string[] = "~~~~<\r"; | |
371 | struct p54u_priv *priv = dev->priv; | |
372 | const struct firmware *fw_entry = NULL; | |
373 | int err, alen; | |
374 | u8 carry = 0; | |
375 | u8 *buf, *tmp, *data; | |
376 | unsigned int left, remains, block_size; | |
377 | struct x2_header *hdr; | |
378 | unsigned long timeout; | |
379 | ||
380 | tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL); | |
381 | if (!buf) { | |
382 | printk(KERN_ERR "p54usb: cannot allocate firmware upload buffer!\n"); | |
383 | err = -ENOMEM; | |
384 | goto err_bufalloc; | |
385 | } | |
386 | ||
387 | memcpy(buf, start_string, 4); | |
388 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 4); | |
389 | if (err) { | |
390 | printk(KERN_ERR "p54usb: reset failed! (%d)\n", err); | |
391 | goto err_reset; | |
392 | } | |
393 | ||
394 | err = request_firmware(&fw_entry, "isl3887usb_bare", &priv->udev->dev); | |
395 | if (err) { | |
396 | printk(KERN_ERR "p54usb: cannot find firmware (isl3887usb_bare)!\n"); | |
397 | goto err_req_fw_failed; | |
398 | } | |
399 | ||
400 | p54_parse_firmware(dev, fw_entry); | |
401 | ||
402 | left = block_size = min((size_t)P54U_FW_BLOCK, fw_entry->size); | |
403 | strcpy(buf, start_string); | |
404 | left -= strlen(start_string); | |
405 | tmp += strlen(start_string); | |
406 | ||
407 | data = fw_entry->data; | |
408 | remains = fw_entry->size; | |
409 | ||
410 | hdr = (struct x2_header *)(buf + strlen(start_string)); | |
411 | memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE); | |
412 | hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR); | |
413 | hdr->fw_length = cpu_to_le32(fw_entry->size); | |
414 | hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr, | |
415 | sizeof(u32)*2)); | |
416 | left -= sizeof(*hdr); | |
417 | tmp += sizeof(*hdr); | |
418 | ||
419 | while (remains) { | |
420 | while (left--) { | |
421 | if (carry) { | |
422 | *tmp++ = carry; | |
423 | carry = 0; | |
424 | remains--; | |
425 | continue; | |
426 | } | |
427 | switch (*data) { | |
428 | case '~': | |
429 | *tmp++ = '}'; | |
430 | carry = '^'; | |
431 | break; | |
432 | case '}': | |
433 | *tmp++ = '}'; | |
434 | carry = ']'; | |
435 | break; | |
436 | default: | |
437 | *tmp++ = *data; | |
438 | remains--; | |
439 | break; | |
440 | } | |
441 | data++; | |
442 | } | |
443 | ||
444 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size); | |
445 | if (err) { | |
446 | printk(KERN_ERR "prism54usb: firmware upload failed!\n"); | |
447 | goto err_upload_failed; | |
448 | } | |
449 | ||
450 | tmp = buf; | |
451 | left = block_size = min((unsigned int)P54U_FW_BLOCK, remains); | |
452 | } | |
453 | ||
454 | *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, fw_entry->data, fw_entry->size)); | |
455 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32)); | |
456 | if (err) { | |
457 | printk(KERN_ERR "prism54usb: firmware upload failed!\n"); | |
458 | goto err_upload_failed; | |
459 | } | |
460 | ||
461 | timeout = jiffies + msecs_to_jiffies(1000); | |
462 | while (!(err = usb_bulk_msg(priv->udev, | |
463 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { | |
464 | if (alen > 2 && !memcmp(buf, "OK", 2)) | |
465 | break; | |
466 | ||
467 | if (alen > 5 && !memcmp(buf, "ERROR", 5)) { | |
468 | printk(KERN_INFO "prism54usb: firmware upload failed!\n"); | |
469 | err = -EINVAL; | |
470 | break; | |
471 | } | |
472 | ||
473 | if (time_after(jiffies, timeout)) { | |
474 | printk(KERN_ERR "prism54usb: firmware boot timed out!\n"); | |
475 | err = -ETIMEDOUT; | |
476 | break; | |
477 | } | |
478 | } | |
479 | if (err) | |
480 | goto err_upload_failed; | |
481 | ||
482 | buf[0] = 'g'; | |
483 | buf[1] = '\r'; | |
484 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2); | |
485 | if (err) { | |
486 | printk(KERN_ERR "prism54usb: firmware boot failed!\n"); | |
487 | goto err_upload_failed; | |
488 | } | |
489 | ||
490 | timeout = jiffies + msecs_to_jiffies(1000); | |
491 | while (!(err = usb_bulk_msg(priv->udev, | |
492 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) { | |
493 | if (alen > 0 && buf[0] == 'g') | |
494 | break; | |
495 | ||
496 | if (time_after(jiffies, timeout)) { | |
497 | err = -ETIMEDOUT; | |
498 | break; | |
499 | } | |
500 | } | |
501 | if (err) | |
502 | goto err_upload_failed; | |
503 | ||
504 | err_upload_failed: | |
505 | release_firmware(fw_entry); | |
506 | err_req_fw_failed: | |
507 | err_reset: | |
508 | kfree(buf); | |
509 | err_bufalloc: | |
510 | return err; | |
511 | } | |
512 | ||
513 | static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) | |
514 | { | |
515 | struct p54u_priv *priv = dev->priv; | |
516 | const struct firmware *fw_entry = NULL; | |
517 | const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE; | |
518 | int err, alen; | |
519 | void *buf; | |
520 | __le32 reg; | |
521 | unsigned int remains, offset; | |
522 | u8 *data; | |
523 | ||
524 | buf = kmalloc(512, GFP_KERNEL); | |
525 | if (!buf) { | |
526 | printk(KERN_ERR "p54usb: firmware buffer alloc failed!\n"); | |
527 | return -ENOMEM; | |
528 | } | |
529 | ||
530 | err = request_firmware(&fw_entry, "isl3890usb", &priv->udev->dev); | |
531 | if (err) { | |
532 | printk(KERN_ERR "p54usb: cannot find firmware (isl3890usb)!\n"); | |
533 | kfree(buf); | |
534 | return err; | |
535 | } | |
536 | ||
537 | p54_parse_firmware(dev, fw_entry); | |
538 | ||
539 | #define P54U_WRITE(type, addr, data) \ | |
540 | do {\ | |
541 | err = p54u_write(priv, buf, type,\ | |
542 | cpu_to_le32((u32)(unsigned long)addr), data);\ | |
543 | if (err) \ | |
544 | goto fail;\ | |
545 | } while (0) | |
546 | ||
547 | #define P54U_READ(type, addr) \ | |
548 | do {\ | |
549 | err = p54u_read(priv, buf, type,\ | |
550 | cpu_to_le32((u32)(unsigned long)addr), ®);\ | |
551 | if (err)\ | |
552 | goto fail;\ | |
553 | } while (0) | |
554 | ||
555 | /* power down net2280 bridge */ | |
556 | P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL); | |
557 | reg |= cpu_to_le32(P54U_BRG_POWER_DOWN); | |
558 | reg &= cpu_to_le32(~P54U_BRG_POWER_UP); | |
559 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); | |
560 | ||
561 | mdelay(100); | |
562 | ||
563 | /* power up bridge */ | |
564 | reg |= cpu_to_le32(P54U_BRG_POWER_UP); | |
565 | reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN); | |
566 | P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg); | |
567 | ||
568 | mdelay(100); | |
569 | ||
570 | P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT, | |
571 | cpu_to_le32(NET2280_CLK_30Mhz | | |
572 | NET2280_PCI_ENABLE | | |
573 | NET2280_PCI_SOFT_RESET)); | |
574 | ||
575 | mdelay(20); | |
576 | ||
577 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND, | |
578 | cpu_to_le32(PCI_COMMAND_MEMORY | | |
579 | PCI_COMMAND_MASTER)); | |
580 | ||
581 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0, | |
582 | cpu_to_le32(NET2280_BASE)); | |
583 | ||
584 | P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS); | |
585 | reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT); | |
586 | P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg); | |
587 | ||
588 | // TODO: we really need this? | |
589 | P54U_READ(NET2280_BRG_U32, NET2280_RELNUM); | |
590 | ||
591 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP, | |
592 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); | |
593 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP, | |
594 | cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE)); | |
595 | ||
596 | P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2, | |
597 | cpu_to_le32(NET2280_BASE2)); | |
598 | ||
599 | /* finally done setting up the bridge */ | |
600 | ||
601 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND, | |
602 | cpu_to_le32(PCI_COMMAND_MEMORY | | |
603 | PCI_COMMAND_MASTER)); | |
604 | ||
605 | P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0); | |
606 | P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0, | |
607 | cpu_to_le32(P54U_DEV_BASE)); | |
608 | ||
609 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); | |
610 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
611 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
612 | ||
613 | /* do romboot */ | |
614 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0); | |
615 | ||
616 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); | |
617 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
618 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); | |
619 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); | |
620 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
621 | ||
622 | mdelay(20); | |
623 | ||
624 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
625 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
626 | ||
627 | mdelay(20); | |
628 | ||
629 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
630 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
631 | ||
632 | mdelay(100); | |
633 | ||
634 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
635 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
636 | ||
637 | /* finally, we can upload firmware now! */ | |
638 | remains = fw_entry->size; | |
639 | data = fw_entry->data; | |
640 | offset = ISL38XX_DEV_FIRMWARE_ADDR; | |
641 | ||
642 | while (remains) { | |
643 | unsigned int block_len = min(remains, (unsigned int)512); | |
644 | memcpy(buf, data, block_len); | |
645 | ||
646 | err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len); | |
647 | if (err) { | |
648 | printk(KERN_ERR "prism54usb: firmware block upload " | |
649 | "failed\n"); | |
650 | goto fail; | |
651 | } | |
652 | ||
653 | P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base, | |
654 | cpu_to_le32(0xc0000f00)); | |
655 | ||
656 | P54U_WRITE(NET2280_DEV_U32, | |
657 | 0x0020 | (unsigned long)&devreg->direct_mem_win, 0); | |
658 | P54U_WRITE(NET2280_DEV_U32, | |
659 | 0x0020 | (unsigned long)&devreg->direct_mem_win, | |
660 | cpu_to_le32(1)); | |
661 | ||
662 | P54U_WRITE(NET2280_DEV_U32, | |
663 | 0x0024 | (unsigned long)&devreg->direct_mem_win, | |
664 | cpu_to_le32(block_len)); | |
665 | P54U_WRITE(NET2280_DEV_U32, | |
666 | 0x0028 | (unsigned long)&devreg->direct_mem_win, | |
667 | cpu_to_le32(offset)); | |
668 | ||
669 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr, | |
670 | cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR)); | |
671 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len, | |
672 | cpu_to_le32(block_len >> 2)); | |
673 | P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl, | |
674 | cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER)); | |
675 | ||
676 | mdelay(10); | |
677 | ||
678 | P54U_READ(NET2280_DEV_U32, | |
679 | 0x002C | (unsigned long)&devreg->direct_mem_win); | |
680 | if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) || | |
681 | !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) { | |
682 | printk(KERN_ERR "prism54usb: firmware DMA transfer " | |
683 | "failed\n"); | |
684 | goto fail; | |
685 | } | |
686 | ||
687 | P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT, | |
688 | cpu_to_le32(NET2280_FIFO_FLUSH)); | |
689 | ||
690 | remains -= block_len; | |
691 | data += block_len; | |
692 | offset += block_len; | |
693 | } | |
694 | ||
695 | /* do ramboot */ | |
696 | P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat); | |
697 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
698 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); | |
699 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); | |
700 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
701 | ||
702 | mdelay(20); | |
703 | ||
704 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); | |
705 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
706 | ||
707 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); | |
708 | P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg); | |
709 | ||
710 | mdelay(100); | |
711 | ||
712 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
713 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
714 | ||
715 | /* start up the firmware */ | |
716 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, | |
717 | cpu_to_le32(ISL38XX_INT_IDENT_INIT)); | |
718 | ||
719 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
720 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
721 | ||
722 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, | |
723 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE | | |
724 | NET2280_USB_INTERRUPT_ENABLE)); | |
725 | ||
726 | P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int, | |
727 | cpu_to_le32(ISL38XX_DEV_INT_RESET)); | |
728 | ||
729 | err = usb_interrupt_msg(priv->udev, | |
730 | usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT), | |
731 | buf, sizeof(__le32), &alen, 1000); | |
732 | if (err || alen != sizeof(__le32)) | |
733 | goto fail; | |
734 | ||
735 | P54U_READ(NET2280_DEV_U32, &devreg->int_ident); | |
736 | P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg); | |
737 | ||
738 | if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))) | |
739 | err = -EINVAL; | |
740 | ||
741 | P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0); | |
742 | P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1, | |
743 | cpu_to_le32(NET2280_PCI_INTA_INTERRUPT)); | |
744 | ||
745 | #undef P54U_WRITE | |
746 | #undef P54U_READ | |
747 | ||
748 | fail: | |
749 | release_firmware(fw_entry); | |
750 | kfree(buf); | |
751 | return err; | |
752 | } | |
753 | ||
754 | static int p54u_open(struct ieee80211_hw *dev) | |
755 | { | |
756 | struct p54u_priv *priv = dev->priv; | |
757 | int err; | |
758 | ||
759 | err = p54u_init_urbs(dev); | |
760 | if (err) { | |
761 | return err; | |
762 | } | |
763 | ||
764 | priv->common.open = p54u_init_urbs; | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
769 | static void p54u_stop(struct ieee80211_hw *dev) | |
770 | { | |
771 | /* TODO: figure out how to reliably stop the 3887 and net2280 so | |
772 | the hardware is still usable next time we want to start it. | |
773 | until then, we just stop listening to the hardware.. */ | |
774 | p54u_free_urbs(dev); | |
775 | return; | |
776 | } | |
777 | ||
778 | static int __devinit p54u_probe(struct usb_interface *intf, | |
779 | const struct usb_device_id *id) | |
780 | { | |
781 | struct usb_device *udev = interface_to_usbdev(intf); | |
782 | struct ieee80211_hw *dev; | |
783 | struct p54u_priv *priv; | |
784 | int err; | |
785 | unsigned int i, recognized_pipes; | |
786 | DECLARE_MAC_BUF(mac); | |
787 | ||
788 | dev = p54_init_common(sizeof(*priv)); | |
789 | if (!dev) { | |
790 | printk(KERN_ERR "prism54usb: ieee80211 alloc failed\n"); | |
791 | return -ENOMEM; | |
792 | } | |
793 | ||
794 | priv = dev->priv; | |
795 | ||
796 | SET_IEEE80211_DEV(dev, &intf->dev); | |
797 | usb_set_intfdata(intf, dev); | |
798 | priv->udev = udev; | |
799 | ||
800 | usb_get_dev(udev); | |
801 | ||
802 | /* really lazy and simple way of figuring out if we're a 3887 */ | |
803 | /* TODO: should just stick the identification in the device table */ | |
804 | i = intf->altsetting->desc.bNumEndpoints; | |
805 | recognized_pipes = 0; | |
806 | while (i--) { | |
807 | switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) { | |
808 | case P54U_PIPE_DATA: | |
809 | case P54U_PIPE_MGMT: | |
810 | case P54U_PIPE_BRG: | |
811 | case P54U_PIPE_DEV: | |
812 | case P54U_PIPE_DATA | USB_DIR_IN: | |
813 | case P54U_PIPE_MGMT | USB_DIR_IN: | |
814 | case P54U_PIPE_BRG | USB_DIR_IN: | |
815 | case P54U_PIPE_DEV | USB_DIR_IN: | |
816 | case P54U_PIPE_INT | USB_DIR_IN: | |
817 | recognized_pipes++; | |
818 | } | |
819 | } | |
820 | priv->common.open = p54u_open; | |
821 | ||
822 | if (recognized_pipes < P54U_PIPE_NUMBER) { | |
823 | priv->hw_type = P54U_3887; | |
824 | priv->common.tx = p54u_tx_3887; | |
825 | } else { | |
826 | dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr); | |
827 | priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr); | |
828 | priv->common.tx = p54u_tx_net2280; | |
829 | } | |
830 | priv->common.stop = p54u_stop; | |
831 | ||
832 | if (priv->hw_type) | |
833 | err = p54u_upload_firmware_3887(dev); | |
834 | else | |
835 | err = p54u_upload_firmware_net2280(dev); | |
836 | if (err) | |
837 | goto err_free_dev; | |
838 | ||
839 | err = p54u_read_eeprom(dev); | |
840 | if (err) | |
841 | goto err_free_dev; | |
842 | ||
843 | if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { | |
844 | u8 perm_addr[ETH_ALEN]; | |
845 | ||
846 | printk(KERN_WARNING "prism54usb: Invalid hwaddr! Using randomly generated MAC addr\n"); | |
847 | random_ether_addr(perm_addr); | |
848 | SET_IEEE80211_PERM_ADDR(dev, perm_addr); | |
849 | } | |
850 | ||
851 | skb_queue_head_init(&priv->rx_queue); | |
852 | ||
853 | err = ieee80211_register_hw(dev); | |
854 | if (err) { | |
855 | printk(KERN_ERR "prism54usb: Cannot register netdevice\n"); | |
856 | goto err_free_dev; | |
857 | } | |
858 | ||
859 | printk(KERN_INFO "%s: hwaddr %s, isl38%02x\n", | |
860 | wiphy_name(dev->wiphy), | |
861 | print_mac(mac, dev->wiphy->perm_addr), | |
862 | priv->common.version); | |
863 | ||
864 | return 0; | |
865 | ||
866 | err_free_dev: | |
867 | ieee80211_free_hw(dev); | |
868 | usb_set_intfdata(intf, NULL); | |
869 | usb_put_dev(udev); | |
870 | return err; | |
871 | } | |
872 | ||
873 | static void __devexit p54u_disconnect(struct usb_interface *intf) | |
874 | { | |
875 | struct ieee80211_hw *dev = usb_get_intfdata(intf); | |
876 | struct p54u_priv *priv; | |
877 | ||
878 | if (!dev) | |
879 | return; | |
880 | ||
881 | ieee80211_unregister_hw(dev); | |
882 | ||
883 | priv = dev->priv; | |
884 | usb_put_dev(interface_to_usbdev(intf)); | |
885 | p54_free_common(dev); | |
886 | ieee80211_free_hw(dev); | |
887 | } | |
888 | ||
889 | static struct usb_driver p54u_driver = { | |
890 | .name = "prism54usb", | |
891 | .id_table = p54u_table, | |
892 | .probe = p54u_probe, | |
893 | .disconnect = p54u_disconnect, | |
894 | }; | |
895 | ||
896 | static int __init p54u_init(void) | |
897 | { | |
898 | return usb_register(&p54u_driver); | |
899 | } | |
900 | ||
901 | static void __exit p54u_exit(void) | |
902 | { | |
903 | usb_deregister(&p54u_driver); | |
904 | } | |
905 | ||
906 | module_init(p54u_init); | |
907 | module_exit(p54u_exit); |