Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * | |
4 | * AVM BlueFRITZ! USB driver | |
5 | * | |
9c724357 | 6 | * Copyright (C) 2003-2006 Marcel Holtmann <marcel@holtmann.org> |
1da177e4 LT |
7 | */ |
8 | ||
1da177e4 LT |
9 | #include <linux/module.h> |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/types.h> | |
1da177e4 LT |
15 | #include <linux/errno.h> |
16 | #include <linux/skbuff.h> | |
17 | ||
18 | #include <linux/device.h> | |
19 | #include <linux/firmware.h> | |
20 | ||
21 | #include <linux/usb.h> | |
22 | ||
23 | #include <net/bluetooth/bluetooth.h> | |
24 | #include <net/bluetooth/hci_core.h> | |
25 | ||
943d56b0 | 26 | #define VERSION "1.2" |
1da177e4 LT |
27 | |
28 | static struct usb_driver bfusb_driver; | |
29 | ||
9712d59a | 30 | static const struct usb_device_id bfusb_table[] = { |
1da177e4 LT |
31 | /* AVM BlueFRITZ! USB */ |
32 | { USB_DEVICE(0x057c, 0x2200) }, | |
33 | ||
34 | { } /* Terminating entry */ | |
35 | }; | |
36 | ||
37 | MODULE_DEVICE_TABLE(usb, bfusb_table); | |
38 | ||
1da177e4 LT |
39 | #define BFUSB_MAX_BLOCK_SIZE 256 |
40 | ||
41 | #define BFUSB_BLOCK_TIMEOUT 3000 | |
42 | ||
43 | #define BFUSB_TX_PROCESS 1 | |
44 | #define BFUSB_TX_WAKEUP 2 | |
45 | ||
46 | #define BFUSB_MAX_BULK_TX 2 | |
47 | #define BFUSB_MAX_BULK_RX 2 | |
48 | ||
9c724357 | 49 | struct bfusb_data { |
1da177e4 LT |
50 | struct hci_dev *hdev; |
51 | ||
52 | unsigned long state; | |
53 | ||
54 | struct usb_device *udev; | |
55 | ||
56 | unsigned int bulk_in_ep; | |
57 | unsigned int bulk_out_ep; | |
58 | unsigned int bulk_pkt_size; | |
59 | ||
60 | rwlock_t lock; | |
61 | ||
62 | struct sk_buff_head transmit_q; | |
63 | ||
64 | struct sk_buff *reassembly; | |
65 | ||
66 | atomic_t pending_tx; | |
67 | struct sk_buff_head pending_q; | |
68 | struct sk_buff_head completed_q; | |
69 | }; | |
70 | ||
9c724357 | 71 | struct bfusb_data_scb { |
1da177e4 LT |
72 | struct urb *urb; |
73 | }; | |
74 | ||
7d12e780 DH |
75 | static void bfusb_tx_complete(struct urb *urb); |
76 | static void bfusb_rx_complete(struct urb *urb); | |
1da177e4 | 77 | |
9c724357 | 78 | static struct urb *bfusb_get_completed(struct bfusb_data *data) |
1da177e4 LT |
79 | { |
80 | struct sk_buff *skb; | |
81 | struct urb *urb = NULL; | |
82 | ||
9c724357 | 83 | BT_DBG("bfusb %p", data); |
1da177e4 | 84 | |
9c724357 | 85 | skb = skb_dequeue(&data->completed_q); |
1da177e4 | 86 | if (skb) { |
9c724357 | 87 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; |
1da177e4 LT |
88 | kfree_skb(skb); |
89 | } | |
90 | ||
91 | return urb; | |
92 | } | |
93 | ||
9c724357 | 94 | static void bfusb_unlink_urbs(struct bfusb_data *data) |
1da177e4 LT |
95 | { |
96 | struct sk_buff *skb; | |
97 | struct urb *urb; | |
98 | ||
9c724357 | 99 | BT_DBG("bfusb %p", data); |
1da177e4 | 100 | |
9c724357 MH |
101 | while ((skb = skb_dequeue(&data->pending_q))) { |
102 | urb = ((struct bfusb_data_scb *) skb->cb)->urb; | |
1da177e4 | 103 | usb_kill_urb(urb); |
9c724357 | 104 | skb_queue_tail(&data->completed_q, skb); |
1da177e4 LT |
105 | } |
106 | ||
9c724357 | 107 | while ((urb = bfusb_get_completed(data))) |
1da177e4 LT |
108 | usb_free_urb(urb); |
109 | } | |
110 | ||
9c724357 | 111 | static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb) |
1da177e4 | 112 | { |
9c724357 MH |
113 | struct bfusb_data_scb *scb = (void *) skb->cb; |
114 | struct urb *urb = bfusb_get_completed(data); | |
1da177e4 LT |
115 | int err, pipe; |
116 | ||
9c724357 | 117 | BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len); |
1da177e4 | 118 | |
a08b15e6 VI |
119 | if (!urb) { |
120 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
121 | if (!urb) | |
122 | return -ENOMEM; | |
123 | } | |
1da177e4 | 124 | |
9c724357 | 125 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
1da177e4 | 126 | |
9c724357 | 127 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len, |
1da177e4 LT |
128 | bfusb_tx_complete, skb); |
129 | ||
130 | scb->urb = urb; | |
131 | ||
9c724357 | 132 | skb_queue_tail(&data->pending_q, skb); |
1da177e4 LT |
133 | |
134 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
135 | if (err) { | |
2a4f3909 MH |
136 | bt_dev_err(data->hdev, "bulk tx submit failed urb %p err %d", |
137 | urb, err); | |
9c724357 | 138 | skb_unlink(skb, &data->pending_q); |
1da177e4 LT |
139 | usb_free_urb(urb); |
140 | } else | |
9c724357 | 141 | atomic_inc(&data->pending_tx); |
1da177e4 LT |
142 | |
143 | return err; | |
144 | } | |
145 | ||
9c724357 | 146 | static void bfusb_tx_wakeup(struct bfusb_data *data) |
1da177e4 LT |
147 | { |
148 | struct sk_buff *skb; | |
149 | ||
9c724357 | 150 | BT_DBG("bfusb %p", data); |
1da177e4 | 151 | |
9c724357 MH |
152 | if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) { |
153 | set_bit(BFUSB_TX_WAKEUP, &data->state); | |
1da177e4 LT |
154 | return; |
155 | } | |
156 | ||
157 | do { | |
9c724357 | 158 | clear_bit(BFUSB_TX_WAKEUP, &data->state); |
1da177e4 | 159 | |
9c724357 MH |
160 | while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) && |
161 | (skb = skb_dequeue(&data->transmit_q))) { | |
162 | if (bfusb_send_bulk(data, skb) < 0) { | |
163 | skb_queue_head(&data->transmit_q, skb); | |
1da177e4 LT |
164 | break; |
165 | } | |
166 | } | |
167 | ||
9c724357 | 168 | } while (test_bit(BFUSB_TX_WAKEUP, &data->state)); |
1da177e4 | 169 | |
9c724357 | 170 | clear_bit(BFUSB_TX_PROCESS, &data->state); |
1da177e4 LT |
171 | } |
172 | ||
7d12e780 | 173 | static void bfusb_tx_complete(struct urb *urb) |
1da177e4 LT |
174 | { |
175 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
9c724357 | 176 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
1da177e4 | 177 | |
9c724357 | 178 | BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len); |
1da177e4 | 179 | |
9c724357 | 180 | atomic_dec(&data->pending_tx); |
1da177e4 | 181 | |
9c724357 | 182 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
1da177e4 LT |
183 | return; |
184 | ||
185 | if (!urb->status) | |
9c724357 | 186 | data->hdev->stat.byte_tx += skb->len; |
1da177e4 | 187 | else |
9c724357 | 188 | data->hdev->stat.err_tx++; |
1da177e4 | 189 | |
9c724357 | 190 | read_lock(&data->lock); |
1da177e4 | 191 | |
9c724357 MH |
192 | skb_unlink(skb, &data->pending_q); |
193 | skb_queue_tail(&data->completed_q, skb); | |
1da177e4 | 194 | |
9c724357 | 195 | bfusb_tx_wakeup(data); |
1da177e4 | 196 | |
9c724357 | 197 | read_unlock(&data->lock); |
1da177e4 LT |
198 | } |
199 | ||
200 | ||
9c724357 | 201 | static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb) |
1da177e4 | 202 | { |
9c724357 | 203 | struct bfusb_data_scb *scb; |
1da177e4 LT |
204 | struct sk_buff *skb; |
205 | int err, pipe, size = HCI_MAX_FRAME_SIZE + 32; | |
206 | ||
a418b893 | 207 | BT_DBG("bfusb %p urb %p", data, urb); |
1da177e4 | 208 | |
a08b15e6 VI |
209 | if (!urb) { |
210 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
211 | if (!urb) | |
212 | return -ENOMEM; | |
213 | } | |
1da177e4 | 214 | |
9c724357 MH |
215 | skb = bt_skb_alloc(size, GFP_ATOMIC); |
216 | if (!skb) { | |
1da177e4 LT |
217 | usb_free_urb(urb); |
218 | return -ENOMEM; | |
219 | } | |
220 | ||
9c724357 | 221 | skb->dev = (void *) data; |
1da177e4 | 222 | |
9c724357 | 223 | scb = (struct bfusb_data_scb *) skb->cb; |
1da177e4 LT |
224 | scb->urb = urb; |
225 | ||
9c724357 | 226 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep); |
1da177e4 | 227 | |
9c724357 | 228 | usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size, |
1da177e4 LT |
229 | bfusb_rx_complete, skb); |
230 | ||
9c724357 | 231 | skb_queue_tail(&data->pending_q, skb); |
1da177e4 LT |
232 | |
233 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
234 | if (err) { | |
2a4f3909 MH |
235 | bt_dev_err(data->hdev, "bulk rx submit failed urb %p err %d", |
236 | urb, err); | |
9c724357 | 237 | skb_unlink(skb, &data->pending_q); |
1da177e4 LT |
238 | kfree_skb(skb); |
239 | usb_free_urb(urb); | |
240 | } | |
241 | ||
242 | return err; | |
243 | } | |
244 | ||
9c724357 | 245 | static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len) |
1da177e4 | 246 | { |
9c724357 | 247 | BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len); |
1da177e4 LT |
248 | |
249 | if (hdr & 0x10) { | |
2a4f3909 | 250 | bt_dev_err(data->hdev, "error in block"); |
b1fb0683 | 251 | kfree_skb(data->reassembly); |
9c724357 | 252 | data->reassembly = NULL; |
1da177e4 LT |
253 | return -EIO; |
254 | } | |
255 | ||
256 | if (hdr & 0x04) { | |
257 | struct sk_buff *skb; | |
258 | unsigned char pkt_type; | |
259 | int pkt_len = 0; | |
260 | ||
9c724357 | 261 | if (data->reassembly) { |
2a4f3909 | 262 | bt_dev_err(data->hdev, "unexpected start block"); |
9c724357 MH |
263 | kfree_skb(data->reassembly); |
264 | data->reassembly = NULL; | |
1da177e4 LT |
265 | } |
266 | ||
267 | if (len < 1) { | |
2a4f3909 | 268 | bt_dev_err(data->hdev, "no packet type found"); |
1da177e4 LT |
269 | return -EPROTO; |
270 | } | |
271 | ||
9c724357 | 272 | pkt_type = *buf++; len--; |
1da177e4 LT |
273 | |
274 | switch (pkt_type) { | |
275 | case HCI_EVENT_PKT: | |
276 | if (len >= HCI_EVENT_HDR_SIZE) { | |
9c724357 | 277 | struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf; |
1da177e4 LT |
278 | pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen; |
279 | } else { | |
2a4f3909 | 280 | bt_dev_err(data->hdev, "event block is too short"); |
1da177e4 LT |
281 | return -EILSEQ; |
282 | } | |
283 | break; | |
284 | ||
285 | case HCI_ACLDATA_PKT: | |
286 | if (len >= HCI_ACL_HDR_SIZE) { | |
9c724357 | 287 | struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf; |
1da177e4 LT |
288 | pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen); |
289 | } else { | |
2a4f3909 | 290 | bt_dev_err(data->hdev, "data block is too short"); |
1da177e4 LT |
291 | return -EILSEQ; |
292 | } | |
293 | break; | |
294 | ||
295 | case HCI_SCODATA_PKT: | |
296 | if (len >= HCI_SCO_HDR_SIZE) { | |
9c724357 | 297 | struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf; |
1da177e4 LT |
298 | pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen; |
299 | } else { | |
2a4f3909 | 300 | bt_dev_err(data->hdev, "audio block is too short"); |
1da177e4 LT |
301 | return -EILSEQ; |
302 | } | |
303 | break; | |
304 | } | |
305 | ||
306 | skb = bt_skb_alloc(pkt_len, GFP_ATOMIC); | |
307 | if (!skb) { | |
2a4f3909 | 308 | bt_dev_err(data->hdev, "no memory for the packet"); |
1da177e4 LT |
309 | return -ENOMEM; |
310 | } | |
311 | ||
618e8bc2 | 312 | hci_skb_pkt_type(skb) = pkt_type; |
1da177e4 | 313 | |
9c724357 | 314 | data->reassembly = skb; |
1da177e4 | 315 | } else { |
9c724357 | 316 | if (!data->reassembly) { |
2a4f3909 | 317 | bt_dev_err(data->hdev, "unexpected continuation block"); |
1da177e4 LT |
318 | return -EIO; |
319 | } | |
320 | } | |
321 | ||
322 | if (len > 0) | |
59ae1d12 | 323 | skb_put_data(data->reassembly, buf, len); |
1da177e4 LT |
324 | |
325 | if (hdr & 0x08) { | |
e1a26170 | 326 | hci_recv_frame(data->hdev, data->reassembly); |
9c724357 | 327 | data->reassembly = NULL; |
1da177e4 LT |
328 | } |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
7d12e780 | 333 | static void bfusb_rx_complete(struct urb *urb) |
1da177e4 LT |
334 | { |
335 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
9c724357 | 336 | struct bfusb_data *data = (struct bfusb_data *) skb->dev; |
1da177e4 LT |
337 | unsigned char *buf = urb->transfer_buffer; |
338 | int count = urb->actual_length; | |
339 | int err, hdr, len; | |
340 | ||
a418b893 | 341 | BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len); |
1da177e4 | 342 | |
9c724357 | 343 | read_lock(&data->lock); |
1da177e4 | 344 | |
9c724357 | 345 | if (!test_bit(HCI_RUNNING, &data->hdev->flags)) |
1da177e4 LT |
346 | goto unlock; |
347 | ||
348 | if (urb->status || !count) | |
349 | goto resubmit; | |
350 | ||
9c724357 | 351 | data->hdev->stat.byte_rx += count; |
1da177e4 LT |
352 | |
353 | skb_put(skb, count); | |
354 | ||
355 | while (count) { | |
356 | hdr = buf[0] | (buf[1] << 8); | |
357 | ||
358 | if (hdr & 0x4000) { | |
359 | len = 0; | |
360 | count -= 2; | |
361 | buf += 2; | |
362 | } else { | |
363 | len = (buf[2] == 0) ? 256 : buf[2]; | |
364 | count -= 3; | |
365 | buf += 3; | |
366 | } | |
367 | ||
368 | if (count < len) { | |
2a4f3909 | 369 | bt_dev_err(data->hdev, "block extends over URB buffer ranges"); |
1da177e4 LT |
370 | } |
371 | ||
372 | if ((hdr & 0xe1) == 0xc1) | |
9c724357 | 373 | bfusb_recv_block(data, hdr, buf, len); |
1da177e4 LT |
374 | |
375 | count -= len; | |
376 | buf += len; | |
377 | } | |
378 | ||
9c724357 | 379 | skb_unlink(skb, &data->pending_q); |
1da177e4 LT |
380 | kfree_skb(skb); |
381 | ||
9c724357 | 382 | bfusb_rx_submit(data, urb); |
1da177e4 | 383 | |
9c724357 | 384 | read_unlock(&data->lock); |
1da177e4 LT |
385 | |
386 | return; | |
387 | ||
388 | resubmit: | |
9c724357 | 389 | urb->dev = data->udev; |
1da177e4 LT |
390 | |
391 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
392 | if (err) { | |
2a4f3909 MH |
393 | bt_dev_err(data->hdev, "bulk resubmit failed urb %p err %d", |
394 | urb, err); | |
1da177e4 LT |
395 | } |
396 | ||
397 | unlock: | |
9c724357 | 398 | read_unlock(&data->lock); |
1da177e4 LT |
399 | } |
400 | ||
1da177e4 LT |
401 | static int bfusb_open(struct hci_dev *hdev) |
402 | { | |
155961e8 | 403 | struct bfusb_data *data = hci_get_drvdata(hdev); |
1da177e4 LT |
404 | unsigned long flags; |
405 | int i, err; | |
406 | ||
9c724357 | 407 | BT_DBG("hdev %p bfusb %p", hdev, data); |
1da177e4 | 408 | |
9c724357 | 409 | write_lock_irqsave(&data->lock, flags); |
1da177e4 | 410 | |
9c724357 | 411 | err = bfusb_rx_submit(data, NULL); |
1da177e4 LT |
412 | if (!err) { |
413 | for (i = 1; i < BFUSB_MAX_BULK_RX; i++) | |
9c724357 | 414 | bfusb_rx_submit(data, NULL); |
1da177e4 LT |
415 | } |
416 | ||
9c724357 | 417 | write_unlock_irqrestore(&data->lock, flags); |
1da177e4 LT |
418 | |
419 | return err; | |
420 | } | |
421 | ||
422 | static int bfusb_flush(struct hci_dev *hdev) | |
423 | { | |
155961e8 | 424 | struct bfusb_data *data = hci_get_drvdata(hdev); |
1da177e4 | 425 | |
9c724357 | 426 | BT_DBG("hdev %p bfusb %p", hdev, data); |
1da177e4 | 427 | |
9c724357 | 428 | skb_queue_purge(&data->transmit_q); |
1da177e4 LT |
429 | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static int bfusb_close(struct hci_dev *hdev) | |
434 | { | |
155961e8 | 435 | struct bfusb_data *data = hci_get_drvdata(hdev); |
1da177e4 LT |
436 | unsigned long flags; |
437 | ||
9c724357 | 438 | BT_DBG("hdev %p bfusb %p", hdev, data); |
1da177e4 | 439 | |
9c724357 MH |
440 | write_lock_irqsave(&data->lock, flags); |
441 | write_unlock_irqrestore(&data->lock, flags); | |
1da177e4 | 442 | |
9c724357 | 443 | bfusb_unlink_urbs(data); |
1da177e4 LT |
444 | bfusb_flush(hdev); |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
7bd8f09f | 449 | static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 | 450 | { |
aae26277 | 451 | struct bfusb_data *data = hci_get_drvdata(hdev); |
1da177e4 LT |
452 | struct sk_buff *nskb; |
453 | unsigned char buf[3]; | |
454 | int sent = 0, size, count; | |
455 | ||
618e8bc2 MH |
456 | BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, |
457 | hci_skb_pkt_type(skb), skb->len); | |
1da177e4 | 458 | |
618e8bc2 | 459 | switch (hci_skb_pkt_type(skb)) { |
1da177e4 LT |
460 | case HCI_COMMAND_PKT: |
461 | hdev->stat.cmd_tx++; | |
462 | break; | |
463 | case HCI_ACLDATA_PKT: | |
464 | hdev->stat.acl_tx++; | |
465 | break; | |
466 | case HCI_SCODATA_PKT: | |
467 | hdev->stat.sco_tx++; | |
468 | break; | |
a03e33da | 469 | } |
1da177e4 LT |
470 | |
471 | /* Prepend skb with frame type */ | |
618e8bc2 | 472 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
1da177e4 LT |
473 | |
474 | count = skb->len; | |
475 | ||
476 | /* Max HCI frame size seems to be 1511 + 1 */ | |
6709514f | 477 | nskb = bt_skb_alloc(count + 32, GFP_KERNEL); |
9c724357 | 478 | if (!nskb) { |
2a4f3909 | 479 | bt_dev_err(hdev, "Can't allocate memory for new packet"); |
1da177e4 LT |
480 | return -ENOMEM; |
481 | } | |
482 | ||
9c724357 | 483 | nskb->dev = (void *) data; |
1da177e4 LT |
484 | |
485 | while (count) { | |
486 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE); | |
487 | ||
488 | buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0); | |
489 | buf[1] = 0x00; | |
490 | buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size; | |
491 | ||
59ae1d12 | 492 | skb_put_data(nskb, buf, 3); |
d626f62b | 493 | skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size); |
1da177e4 LT |
494 | |
495 | sent += size; | |
496 | count -= size; | |
497 | } | |
498 | ||
499 | /* Don't send frame with multiple size of bulk max packet */ | |
9c724357 | 500 | if ((nskb->len % data->bulk_pkt_size) == 0) { |
1da177e4 LT |
501 | buf[0] = 0xdd; |
502 | buf[1] = 0x00; | |
59ae1d12 | 503 | skb_put_data(nskb, buf, 2); |
1da177e4 LT |
504 | } |
505 | ||
9c724357 | 506 | read_lock(&data->lock); |
1da177e4 | 507 | |
9c724357 MH |
508 | skb_queue_tail(&data->transmit_q, nskb); |
509 | bfusb_tx_wakeup(data); | |
1da177e4 | 510 | |
9c724357 | 511 | read_unlock(&data->lock); |
1da177e4 LT |
512 | |
513 | kfree_skb(skb); | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
8187b4fb DW |
518 | static int bfusb_load_firmware(struct bfusb_data *data, |
519 | const unsigned char *firmware, int count) | |
1da177e4 LT |
520 | { |
521 | unsigned char *buf; | |
522 | int err, pipe, len, size, sent = 0; | |
523 | ||
9c724357 | 524 | BT_DBG("bfusb %p udev %p", data, data->udev); |
1da177e4 LT |
525 | |
526 | BT_INFO("BlueFRITZ! USB loading firmware"); | |
527 | ||
7f103a0d DH |
528 | buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL); |
529 | if (!buf) { | |
530 | BT_ERR("Can't allocate memory chunk for firmware"); | |
531 | return -ENOMEM; | |
532 | } | |
533 | ||
9c724357 | 534 | pipe = usb_sndctrlpipe(data->udev, 0); |
1da177e4 | 535 | |
9c724357 | 536 | if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
1da177e4 LT |
537 | 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { |
538 | BT_ERR("Can't change to loading configuration"); | |
7f103a0d | 539 | kfree(buf); |
1da177e4 LT |
540 | return -EBUSY; |
541 | } | |
542 | ||
9c724357 | 543 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
1da177e4 | 544 | |
9c724357 | 545 | pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); |
1da177e4 LT |
546 | |
547 | while (count) { | |
548 | size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3); | |
549 | ||
550 | memcpy(buf, firmware + sent, size); | |
551 | ||
9c724357 | 552 | err = usb_bulk_msg(data->udev, pipe, buf, size, |
1da177e4 LT |
553 | &len, BFUSB_BLOCK_TIMEOUT); |
554 | ||
555 | if (err || (len != size)) { | |
556 | BT_ERR("Error in firmware loading"); | |
557 | goto error; | |
558 | } | |
559 | ||
560 | sent += size; | |
561 | count -= size; | |
562 | } | |
563 | ||
9c724357 MH |
564 | err = usb_bulk_msg(data->udev, pipe, NULL, 0, |
565 | &len, BFUSB_BLOCK_TIMEOUT); | |
566 | if (err < 0) { | |
1da177e4 LT |
567 | BT_ERR("Error in null packet request"); |
568 | goto error; | |
569 | } | |
570 | ||
9c724357 | 571 | pipe = usb_sndctrlpipe(data->udev, 0); |
1da177e4 | 572 | |
9c724357 MH |
573 | err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
574 | 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
575 | if (err < 0) { | |
1da177e4 LT |
576 | BT_ERR("Can't change to running configuration"); |
577 | goto error; | |
578 | } | |
579 | ||
9c724357 | 580 | data->udev->toggle[0] = data->udev->toggle[1] = 0; |
1da177e4 LT |
581 | |
582 | BT_INFO("BlueFRITZ! USB device ready"); | |
583 | ||
584 | kfree(buf); | |
585 | return 0; | |
586 | ||
587 | error: | |
588 | kfree(buf); | |
589 | ||
9c724357 | 590 | pipe = usb_sndctrlpipe(data->udev, 0); |
1da177e4 | 591 | |
9c724357 | 592 | usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, |
1da177e4 LT |
593 | 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
594 | ||
595 | return err; | |
596 | } | |
597 | ||
598 | static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
599 | { | |
600 | const struct firmware *firmware; | |
601 | struct usb_device *udev = interface_to_usbdev(intf); | |
602 | struct usb_host_endpoint *bulk_out_ep; | |
603 | struct usb_host_endpoint *bulk_in_ep; | |
604 | struct hci_dev *hdev; | |
9c724357 | 605 | struct bfusb_data *data; |
1da177e4 LT |
606 | |
607 | BT_DBG("intf %p id %p", intf, id); | |
608 | ||
1da177e4 LT |
609 | /* Check number of endpoints */ |
610 | if (intf->cur_altsetting->desc.bNumEndpoints < 2) | |
611 | return -EIO; | |
612 | ||
613 | bulk_out_ep = &intf->cur_altsetting->endpoint[0]; | |
614 | bulk_in_ep = &intf->cur_altsetting->endpoint[1]; | |
615 | ||
616 | if (!bulk_out_ep || !bulk_in_ep) { | |
617 | BT_ERR("Bulk endpoints not found"); | |
618 | goto done; | |
619 | } | |
620 | ||
621 | /* Initialize control structure and load firmware */ | |
0213cd8d | 622 | data = devm_kzalloc(&intf->dev, sizeof(struct bfusb_data), GFP_KERNEL); |
f71e823b | 623 | if (!data) |
7ddb6922 | 624 | return -ENOMEM; |
1da177e4 | 625 | |
9c724357 MH |
626 | data->udev = udev; |
627 | data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress; | |
628 | data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress; | |
629 | data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize); | |
1da177e4 | 630 | |
9c724357 | 631 | rwlock_init(&data->lock); |
1da177e4 | 632 | |
9c724357 | 633 | data->reassembly = NULL; |
1da177e4 | 634 | |
9c724357 MH |
635 | skb_queue_head_init(&data->transmit_q); |
636 | skb_queue_head_init(&data->pending_q); | |
637 | skb_queue_head_init(&data->completed_q); | |
1da177e4 LT |
638 | |
639 | if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) { | |
640 | BT_ERR("Firmware request failed"); | |
0213cd8d | 641 | goto done; |
1da177e4 LT |
642 | } |
643 | ||
a418b893 | 644 | BT_DBG("firmware data %p size %zu", firmware->data, firmware->size); |
1da177e4 | 645 | |
9c724357 | 646 | if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) { |
1da177e4 LT |
647 | BT_ERR("Firmware loading failed"); |
648 | goto release; | |
649 | } | |
650 | ||
651 | release_firmware(firmware); | |
652 | ||
653 | /* Initialize and register HCI device */ | |
654 | hdev = hci_alloc_dev(); | |
655 | if (!hdev) { | |
656 | BT_ERR("Can't allocate HCI device"); | |
0213cd8d | 657 | goto done; |
1da177e4 LT |
658 | } |
659 | ||
9c724357 | 660 | data->hdev = hdev; |
1da177e4 | 661 | |
c13854ce | 662 | hdev->bus = HCI_USB; |
155961e8 | 663 | hci_set_drvdata(hdev, data); |
1da177e4 LT |
664 | SET_HCIDEV_DEV(hdev, &intf->dev); |
665 | ||
19cf55a2 MH |
666 | hdev->open = bfusb_open; |
667 | hdev->close = bfusb_close; | |
668 | hdev->flush = bfusb_flush; | |
669 | hdev->send = bfusb_send_frame; | |
1da177e4 | 670 | |
9ef80d40 MH |
671 | set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); |
672 | ||
1da177e4 LT |
673 | if (hci_register_dev(hdev) < 0) { |
674 | BT_ERR("Can't register HCI device"); | |
675 | hci_free_dev(hdev); | |
0213cd8d | 676 | goto done; |
1da177e4 LT |
677 | } |
678 | ||
9c724357 | 679 | usb_set_intfdata(intf, data); |
1da177e4 LT |
680 | |
681 | return 0; | |
682 | ||
683 | release: | |
684 | release_firmware(firmware); | |
685 | ||
1da177e4 LT |
686 | done: |
687 | return -EIO; | |
688 | } | |
689 | ||
690 | static void bfusb_disconnect(struct usb_interface *intf) | |
691 | { | |
9c724357 MH |
692 | struct bfusb_data *data = usb_get_intfdata(intf); |
693 | struct hci_dev *hdev = data->hdev; | |
1da177e4 LT |
694 | |
695 | BT_DBG("intf %p", intf); | |
696 | ||
697 | if (!hdev) | |
698 | return; | |
699 | ||
700 | usb_set_intfdata(intf, NULL); | |
701 | ||
702 | bfusb_close(hdev); | |
703 | ||
13ea4015 | 704 | hci_unregister_dev(hdev); |
1da177e4 LT |
705 | hci_free_dev(hdev); |
706 | } | |
707 | ||
708 | static struct usb_driver bfusb_driver = { | |
1da177e4 LT |
709 | .name = "bfusb", |
710 | .probe = bfusb_probe, | |
711 | .disconnect = bfusb_disconnect, | |
712 | .id_table = bfusb_table, | |
e1f12eb6 | 713 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
714 | }; |
715 | ||
93f1508c | 716 | module_usb_driver(bfusb_driver); |
1da177e4 | 717 | |
1da177e4 LT |
718 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
719 | MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION); | |
720 | MODULE_VERSION(VERSION); | |
721 | MODULE_LICENSE("GPL"); | |
2312119a | 722 | MODULE_FIRMWARE("bfubase.frm"); |