]>
Commit | Line | Data |
---|---|---|
132ff4e5 BZ |
1 | /** |
2 | * Marvell Bluetooth driver | |
3 | * | |
4 | * Copyright (C) 2009, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * | |
15 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
17 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
18 | * this warranty disclaimer. | |
19 | **/ | |
20 | ||
21 | #include <net/bluetooth/bluetooth.h> | |
22 | #include <net/bluetooth/hci_core.h> | |
23 | ||
24 | #include "btmrvl_drv.h" | |
25 | ||
26 | #define VERSION "1.0" | |
27 | ||
28 | /* | |
29 | * This function is called by interface specific interrupt handler. | |
30 | * It updates Power Save & Host Sleep states, and wakes up the main | |
31 | * thread. | |
32 | */ | |
33 | void btmrvl_interrupt(struct btmrvl_private *priv) | |
34 | { | |
35 | BT_DBG("Enter"); | |
36 | ||
37 | priv->adapter->ps_state = PS_AWAKE; | |
38 | ||
39 | priv->adapter->wakeup_tries = 0; | |
40 | ||
41 | priv->adapter->int_count++; | |
42 | ||
43 | wake_up_interruptible(&priv->main_thread.wait_q); | |
44 | ||
45 | BT_DBG("Leave"); | |
46 | } | |
47 | EXPORT_SYMBOL_GPL(btmrvl_interrupt); | |
48 | ||
49 | void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
50 | { | |
51 | struct hci_event_hdr *hdr = (struct hci_event_hdr *)skb->data; | |
52 | struct hci_ev_cmd_complete *ec; | |
53 | u16 opcode, ocf; | |
54 | ||
55 | BT_DBG("Enter"); | |
56 | ||
57 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { | |
58 | ec = (struct hci_ev_cmd_complete *)(skb->data + | |
59 | HCI_EVENT_HDR_SIZE); | |
60 | opcode = __le16_to_cpu(ec->opcode); | |
61 | ocf = hci_opcode_ocf(opcode); | |
62 | if ((ocf == BT_CMD_MODULE_CFG_REQ) && | |
63 | (priv->btmrvl_dev.sendcmdflag)) { | |
64 | priv->btmrvl_dev.sendcmdflag = false; | |
65 | priv->adapter->cmd_complete = true; | |
66 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
67 | } | |
68 | } | |
69 | ||
70 | BT_DBG("Leave"); | |
71 | } | |
72 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
73 | ||
74 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
75 | { | |
76 | struct btmrvl_adapter *adapter = priv->adapter; | |
77 | u8 ret = 0; | |
78 | struct btmrvl_event *event; | |
79 | ||
80 | BT_DBG("Enter"); | |
81 | ||
82 | event = (struct btmrvl_event *) skb->data; | |
83 | if (event->ec != 0xff) { | |
84 | BT_DBG("Not Marvell Event=%x", event->ec); | |
85 | ret = -EINVAL; | |
86 | goto exit; | |
87 | } | |
88 | ||
89 | switch (event->data[0]) { | |
90 | case BT_CMD_AUTO_SLEEP_MODE: | |
91 | if (!event->data[2]) { | |
92 | if (event->data[1] == BT_PS_ENABLE) | |
93 | adapter->psmode = 1; | |
94 | else | |
95 | adapter->psmode = 0; | |
96 | BT_DBG("PS Mode:%s", | |
97 | (adapter->psmode) ? "Enable" : "Disable"); | |
98 | } else { | |
99 | BT_DBG("PS Mode command failed"); | |
100 | } | |
101 | break; | |
102 | ||
103 | case BT_CMD_HOST_SLEEP_CONFIG: | |
104 | if (!event->data[3]) | |
105 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
106 | event->data[2]); | |
107 | else | |
108 | BT_DBG("HSCFG command failed"); | |
109 | break; | |
110 | ||
111 | case BT_CMD_HOST_SLEEP_ENABLE: | |
112 | if (!event->data[1]) { | |
113 | adapter->hs_state = HS_ACTIVATED; | |
114 | if (adapter->psmode) | |
115 | adapter->ps_state = PS_SLEEP; | |
116 | wake_up_interruptible(&adapter->cmd_wait_q); | |
117 | BT_DBG("HS ACTIVATED!"); | |
118 | } else { | |
119 | BT_DBG("HS Enable failed"); | |
120 | } | |
121 | break; | |
122 | ||
123 | case BT_CMD_MODULE_CFG_REQ: | |
124 | if ((priv->btmrvl_dev.sendcmdflag) && | |
125 | (event->data[1] == MODULE_BRINGUP_REQ)) { | |
126 | BT_DBG("EVENT:%s", (event->data[2]) ? | |
127 | "Bring-up failed" : "Bring-up succeed"); | |
128 | } else if ((priv->btmrvl_dev.sendcmdflag) && | |
129 | (event->data[1] == MODULE_SHUTDOWN_REQ)) { | |
130 | BT_DBG("EVENT:%s", (event->data[2]) ? | |
131 | "Shutdown failed" : "Shutdown succeed"); | |
132 | } else { | |
133 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
134 | ret = -EINVAL; | |
135 | } | |
136 | break; | |
137 | ||
138 | case BT_EVENT_POWER_STATE: | |
139 | if (event->data[1] == BT_PS_SLEEP) | |
140 | adapter->ps_state = PS_SLEEP; | |
141 | BT_DBG("EVENT:%s", | |
142 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
143 | break; | |
144 | ||
145 | default: | |
146 | BT_DBG("Unknown Event=%d", event->data[0]); | |
147 | ret = -EINVAL; | |
148 | break; | |
149 | } | |
150 | ||
151 | exit: | |
152 | if (!ret) | |
153 | kfree_skb(skb); | |
154 | ||
155 | BT_DBG("Leave"); | |
156 | ||
157 | return ret; | |
158 | } | |
159 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
160 | ||
161 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) | |
162 | { | |
163 | struct sk_buff *skb = NULL; | |
164 | u8 ret = 0; | |
165 | struct btmrvl_cmd *cmd; | |
166 | ||
167 | BT_DBG("Enter"); | |
168 | ||
169 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
170 | if (skb == NULL) { | |
171 | BT_ERR("No free skb"); | |
172 | ret = -ENOMEM; | |
173 | goto exit; | |
174 | } | |
175 | ||
176 | cmd = (struct btmrvl_cmd *) skb->tail; | |
177 | cmd->ocf_ogf = cpu_to_le16((OGF << 10) | BT_CMD_MODULE_CFG_REQ); | |
178 | cmd->length = 1; | |
179 | cmd->data[0] = subcmd; | |
180 | ||
181 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
182 | ||
183 | skb_put(skb, sizeof(*cmd)); | |
184 | skb->dev = (void *)priv->btmrvl_dev.hcidev; | |
185 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
186 | ||
187 | priv->btmrvl_dev.sendcmdflag = true; | |
188 | ||
189 | priv->adapter->cmd_complete = false; | |
190 | ||
191 | BT_DBG("Queue module cfg Command"); | |
192 | ||
193 | wake_up_interruptible(&priv->main_thread.wait_q); | |
194 | ||
195 | if (!wait_event_interruptible_timeout( | |
196 | priv->adapter->cmd_wait_q, | |
197 | priv->adapter->cmd_complete, | |
198 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) { | |
199 | ret = -ETIMEDOUT; | |
200 | BT_ERR("module_cfg_cmd(%x): timeout: %d", | |
201 | subcmd, priv->btmrvl_dev.sendcmdflag); | |
202 | } | |
203 | ||
204 | BT_DBG("module cfg Command done"); | |
205 | ||
206 | exit: | |
207 | BT_DBG("Leave"); | |
208 | ||
209 | return ret; | |
210 | } | |
211 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
212 | ||
213 | static int btmrvl_enable_hs(struct btmrvl_private *priv) | |
214 | { | |
215 | struct sk_buff *skb = NULL; | |
216 | u8 ret = 0; | |
217 | struct btmrvl_cmd *cmd; | |
218 | ||
219 | BT_DBG("Enter"); | |
220 | ||
221 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
222 | if (skb == NULL) { | |
223 | BT_ERR("No free skb"); | |
224 | ret = -ENOMEM; | |
225 | goto exit; | |
226 | } | |
227 | ||
228 | cmd = (struct btmrvl_cmd *) skb->tail; | |
229 | cmd->ocf_ogf = cpu_to_le16((OGF << 10) | BT_CMD_HOST_SLEEP_ENABLE); | |
230 | cmd->length = 0; | |
231 | ||
232 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
233 | ||
234 | skb_put(skb, sizeof(*cmd)); | |
235 | skb->dev = (void *)priv->btmrvl_dev.hcidev; | |
236 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
237 | ||
238 | BT_DBG("Queue hs enable Command"); | |
239 | ||
240 | wake_up_interruptible(&priv->main_thread.wait_q); | |
241 | ||
242 | if (!wait_event_interruptible_timeout( | |
243 | priv->adapter->cmd_wait_q, | |
244 | priv->adapter->hs_state, | |
245 | msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) { | |
246 | ret = -ETIMEDOUT; | |
247 | BT_ERR("timeout: %d, %d,%d", | |
248 | priv->adapter->hs_state, | |
249 | priv->adapter->ps_state, | |
250 | priv->adapter->wakeup_tries); | |
251 | } | |
252 | ||
253 | exit: | |
254 | BT_DBG("Leave"); | |
255 | ||
256 | return ret; | |
257 | } | |
258 | ||
259 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
260 | { | |
261 | struct sk_buff *skb = NULL; | |
262 | u8 ret = 0; | |
263 | struct btmrvl_cmd *cmd; | |
264 | ||
265 | BT_DBG("Enter"); | |
266 | ||
267 | if (priv->btmrvl_dev.hscfgcmd) { | |
268 | priv->btmrvl_dev.hscfgcmd = 0; | |
269 | ||
270 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
271 | if (skb == NULL) { | |
272 | BT_ERR("No free skb"); | |
273 | ret = -ENOMEM; | |
274 | goto exit; | |
275 | } | |
276 | ||
277 | cmd = (struct btmrvl_cmd *) skb->tail; | |
278 | cmd->ocf_ogf = cpu_to_le16((OGF << 10) | | |
279 | BT_CMD_HOST_SLEEP_CONFIG); | |
280 | cmd->length = 2; | |
281 | cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; | |
282 | cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
283 | ||
284 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
285 | ||
286 | skb_put(skb, sizeof(*cmd)); | |
287 | skb->dev = (void *)priv->btmrvl_dev.hcidev; | |
288 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
289 | ||
290 | BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", | |
291 | cmd->data[0], cmd->data[1]); | |
292 | } | |
293 | ||
294 | if (priv->btmrvl_dev.pscmd) { | |
295 | priv->btmrvl_dev.pscmd = 0; | |
296 | ||
297 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
298 | if (skb == NULL) { | |
299 | BT_ERR("No free skb"); | |
300 | ret = -ENOMEM; | |
301 | goto exit; | |
302 | } | |
303 | ||
304 | cmd = (struct btmrvl_cmd *) skb->tail; | |
305 | cmd->ocf_ogf = cpu_to_le16((OGF << 10) | | |
306 | BT_CMD_AUTO_SLEEP_MODE); | |
307 | cmd->length = 1; | |
308 | ||
309 | if (priv->btmrvl_dev.psmode) | |
310 | cmd->data[0] = BT_PS_ENABLE; | |
311 | else | |
312 | cmd->data[0] = BT_PS_DISABLE; | |
313 | ||
314 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
315 | ||
316 | skb_put(skb, sizeof(*cmd)); | |
317 | skb->dev = (void *)priv->btmrvl_dev.hcidev; | |
318 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
319 | ||
320 | BT_DBG("Queue PSMODE Command:%d", cmd->data[0]); | |
321 | } | |
322 | ||
323 | if (priv->btmrvl_dev.hscmd) { | |
324 | priv->btmrvl_dev.hscmd = 0; | |
325 | ||
326 | if (priv->btmrvl_dev.hsmode) { | |
327 | ret = btmrvl_enable_hs(priv); | |
328 | } else { | |
329 | ret = priv->hw_wakeup_firmware(priv); | |
330 | priv->adapter->hs_state = HS_DEACTIVATED; | |
331 | } | |
332 | } | |
333 | ||
334 | exit: | |
335 | BT_DBG("Leave"); | |
336 | ||
337 | return ret; | |
338 | } | |
339 | ||
340 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
341 | { | |
342 | u8 ret = 0; | |
343 | ||
344 | BT_DBG("Enter"); | |
345 | ||
346 | if (!skb || !skb->data) { | |
347 | BT_DBG("Leave"); | |
348 | return -EINVAL; | |
349 | } | |
350 | ||
351 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
352 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
353 | skb->len, BTM_UPLD_SIZE); | |
354 | BT_DBG("Leave"); | |
355 | return -EINVAL; | |
356 | } | |
357 | ||
358 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
359 | struct sk_buff *tmp = skb; | |
360 | ||
361 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
362 | if (!skb) { | |
363 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
364 | BTM_HEADER_LEN); | |
365 | skb = tmp; | |
366 | BT_DBG("Leave"); | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | kfree_skb(tmp); | |
371 | } | |
372 | ||
373 | skb_push(skb, BTM_HEADER_LEN); | |
374 | ||
375 | /* header type: byte[3] | |
376 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
377 | * header length: byte[2][1][0] | |
378 | */ | |
379 | ||
380 | skb->data[0] = (skb->len & 0x0000ff); | |
381 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
382 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
383 | skb->data[3] = bt_cb(skb)->pkt_type; | |
384 | ||
385 | if (priv->hw_host_to_card) | |
386 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
387 | ||
388 | BT_DBG("Leave"); | |
389 | ||
390 | return ret; | |
391 | } | |
392 | ||
393 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
394 | { | |
395 | BT_DBG("Enter"); | |
396 | ||
397 | skb_queue_head_init(&priv->adapter->tx_queue); | |
398 | ||
399 | priv->adapter->ps_state = PS_AWAKE; | |
400 | ||
401 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
402 | ||
403 | BT_DBG("Leave"); | |
404 | } | |
405 | ||
406 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
407 | { | |
408 | BT_DBG("Enter"); | |
409 | ||
410 | skb_queue_purge(&priv->adapter->tx_queue); | |
411 | ||
412 | kfree(priv->adapter); | |
413 | ||
414 | priv->adapter = NULL; | |
415 | ||
416 | BT_DBG("Leave"); | |
417 | } | |
418 | ||
419 | static int | |
420 | btmrvl_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
421 | { | |
422 | BT_DBG("Enter"); | |
423 | ||
424 | BT_DBG("Leave"); | |
425 | ||
426 | return -ENOIOCTLCMD; | |
427 | } | |
428 | ||
429 | static void btmrvl_destruct(struct hci_dev *hdev) | |
430 | { | |
431 | BT_DBG("Enter"); | |
432 | ||
433 | BT_DBG("Leave"); | |
434 | } | |
435 | ||
436 | static int btmrvl_send_frame(struct sk_buff *skb) | |
437 | { | |
438 | struct hci_dev *hdev = (struct hci_dev *)skb->dev; | |
439 | struct btmrvl_private *priv = NULL; | |
440 | ||
441 | BT_DBG("Enter: type=%d, len=%d", skb->pkt_type, skb->len); | |
442 | ||
443 | if (!hdev || !hdev->driver_data) { | |
444 | BT_ERR("Frame for unknown HCI device"); | |
445 | BT_DBG("Leave"); | |
446 | return -ENODEV; | |
447 | } | |
448 | ||
449 | priv = (struct btmrvl_private *)hdev->driver_data; | |
450 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { | |
451 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
452 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
453 | skb->data, skb->len); | |
454 | BT_DBG("Leave"); | |
455 | return -EBUSY; | |
456 | } | |
457 | ||
458 | switch (bt_cb(skb)->pkt_type) { | |
459 | case HCI_COMMAND_PKT: | |
460 | hdev->stat.cmd_tx++; | |
461 | break; | |
462 | ||
463 | case HCI_ACLDATA_PKT: | |
464 | hdev->stat.acl_tx++; | |
465 | break; | |
466 | ||
467 | case HCI_SCODATA_PKT: | |
468 | hdev->stat.sco_tx++; | |
469 | break; | |
470 | } | |
471 | ||
472 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
473 | ||
474 | wake_up_interruptible(&priv->main_thread.wait_q); | |
475 | ||
476 | BT_DBG("Leave"); | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | static int btmrvl_flush(struct hci_dev *hdev) | |
482 | { | |
483 | struct btmrvl_private *priv = | |
484 | (struct btmrvl_private *) hdev->driver_data; | |
485 | ||
486 | BT_DBG("Enter"); | |
487 | ||
488 | skb_queue_purge(&priv->adapter->tx_queue); | |
489 | ||
490 | BT_DBG("Leave"); | |
491 | ||
492 | return 0; | |
493 | } | |
494 | ||
495 | static int btmrvl_close(struct hci_dev *hdev) | |
496 | { | |
497 | struct btmrvl_private *priv = | |
498 | (struct btmrvl_private *) hdev->driver_data; | |
499 | ||
500 | BT_DBG("Enter"); | |
501 | ||
502 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) { | |
503 | BT_DBG("Leave"); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | skb_queue_purge(&priv->adapter->tx_queue); | |
508 | ||
509 | BT_DBG("Leave"); | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
514 | static int btmrvl_open(struct hci_dev *hdev) | |
515 | { | |
516 | BT_DBG("Enter"); | |
517 | ||
518 | set_bit(HCI_RUNNING, &hdev->flags); | |
519 | ||
520 | BT_DBG("Leave"); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
525 | /* | |
526 | * This function handles the event generated by firmware, rx data | |
527 | * received from firmware, and tx data sent from kernel. | |
528 | */ | |
529 | static int btmrvl_service_main_thread(void *data) | |
530 | { | |
531 | struct btmrvl_thread *thread = data; | |
532 | struct btmrvl_private *priv = thread->priv; | |
533 | struct btmrvl_adapter *adapter = priv->adapter; | |
534 | wait_queue_t wait; | |
535 | struct sk_buff *skb; | |
536 | ulong flags; | |
537 | ||
538 | BT_DBG("Enter"); | |
539 | ||
540 | init_waitqueue_entry(&wait, current); | |
541 | ||
542 | current->flags |= PF_NOFREEZE; | |
543 | ||
544 | for (;;) { | |
545 | add_wait_queue(&thread->wait_q, &wait); | |
546 | ||
547 | set_current_state(TASK_INTERRUPTIBLE); | |
548 | ||
549 | if (adapter->wakeup_tries || | |
550 | ((!adapter->int_count) && | |
551 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
552 | skb_queue_empty(&adapter->tx_queue)))) { | |
553 | BT_DBG("main_thread is sleeping..."); | |
554 | schedule(); | |
555 | } | |
556 | ||
557 | set_current_state(TASK_RUNNING); | |
558 | ||
559 | remove_wait_queue(&thread->wait_q, &wait); | |
560 | ||
561 | BT_DBG("main_thread woke up"); | |
562 | ||
563 | if (kthread_should_stop()) { | |
564 | BT_DBG("main_thread: break from main thread"); | |
565 | break; | |
566 | } | |
567 | ||
568 | spin_lock_irqsave(&priv->driver_lock, flags); | |
569 | if (adapter->int_count) { | |
570 | adapter->int_count = 0; | |
571 | } else if ((adapter->ps_state == PS_SLEEP) && | |
572 | !skb_queue_empty(&adapter->tx_queue)) { | |
573 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
574 | adapter->wakeup_tries++; | |
575 | priv->hw_wakeup_firmware(priv); | |
576 | continue; | |
577 | } | |
578 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
579 | ||
580 | if (adapter->ps_state == PS_SLEEP) | |
581 | continue; | |
582 | ||
583 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
584 | continue; | |
585 | ||
586 | skb = skb_dequeue(&adapter->tx_queue); | |
587 | if (skb) { | |
588 | if (btmrvl_tx_pkt(priv, skb)) | |
589 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
590 | else | |
591 | priv->btmrvl_dev.hcidev->stat.byte_tx | |
592 | += skb->len; | |
593 | ||
594 | kfree_skb(skb); | |
595 | } | |
596 | } | |
597 | ||
598 | BT_DBG("Leave"); | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | struct btmrvl_private *btmrvl_add_card(void *card) | |
604 | { | |
605 | struct hci_dev *hdev = NULL; | |
606 | struct btmrvl_private *priv = NULL; | |
607 | int ret; | |
608 | ||
609 | BT_DBG("Enter"); | |
610 | ||
611 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
612 | if (!priv) { | |
613 | BT_ERR("Can not allocate priv"); | |
614 | goto err_priv; | |
615 | } | |
616 | ||
617 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
618 | if (!priv->adapter) { | |
619 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
620 | goto err_adapter; | |
621 | } | |
622 | ||
623 | btmrvl_init_adapter(priv); | |
624 | ||
625 | hdev = hci_alloc_dev(); | |
626 | if (!hdev) { | |
627 | BT_ERR("Can not allocate HCI device"); | |
628 | goto err_hdev; | |
629 | } | |
630 | ||
631 | BT_DBG("Starting kthread..."); | |
632 | priv->main_thread.priv = priv; | |
633 | spin_lock_init(&priv->driver_lock); | |
634 | ||
635 | init_waitqueue_head(&priv->main_thread.wait_q); | |
636 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
637 | &priv->main_thread, "btmrvl_main_service"); | |
638 | ||
639 | priv->btmrvl_dev.hcidev = hdev; | |
640 | priv->btmrvl_dev.card = card; | |
641 | ||
642 | hdev->driver_data = priv; | |
643 | ||
644 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
645 | ||
646 | hdev->type = HCI_SDIO; | |
647 | hdev->open = btmrvl_open; | |
648 | hdev->close = btmrvl_close; | |
649 | hdev->flush = btmrvl_flush; | |
650 | hdev->send = btmrvl_send_frame; | |
651 | hdev->destruct = btmrvl_destruct; | |
652 | hdev->ioctl = btmrvl_ioctl; | |
653 | hdev->owner = THIS_MODULE; | |
654 | ||
655 | ret = hci_register_dev(hdev); | |
656 | if (ret < 0) { | |
657 | BT_ERR("Can not register HCI device"); | |
658 | goto err_hci_register_dev; | |
659 | } | |
660 | ||
661 | BT_DBG("Leave"); | |
662 | return priv; | |
663 | ||
664 | err_hci_register_dev: | |
665 | /* Stop the thread servicing the interrupts */ | |
666 | kthread_stop(priv->main_thread.task); | |
667 | ||
668 | hci_free_dev(hdev); | |
669 | ||
670 | err_hdev: | |
671 | btmrvl_free_adapter(priv); | |
672 | ||
673 | err_adapter: | |
674 | kfree(priv); | |
675 | ||
676 | err_priv: | |
677 | BT_DBG("Leave"); | |
678 | ||
679 | return NULL; | |
680 | } | |
681 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
682 | ||
683 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
684 | { | |
685 | struct hci_dev *hdev; | |
686 | ||
687 | BT_DBG("Enter"); | |
688 | ||
689 | hdev = priv->btmrvl_dev.hcidev; | |
690 | ||
691 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
692 | ||
693 | kthread_stop(priv->main_thread.task); | |
694 | ||
695 | hci_unregister_dev(hdev); | |
696 | ||
697 | hci_free_dev(hdev); | |
698 | ||
699 | priv->btmrvl_dev.hcidev = NULL; | |
700 | ||
701 | btmrvl_free_adapter(priv); | |
702 | ||
703 | kfree(priv); | |
704 | ||
705 | BT_DBG("Leave"); | |
706 | ||
707 | return 0; | |
708 | } | |
709 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
710 | ||
711 | MODULE_AUTHOR("Marvell International Ltd."); | |
712 | MODULE_DESCRIPTION("Marvell Bluetooth Driver v" VERSION); | |
713 | MODULE_VERSION(VERSION); | |
714 | MODULE_LICENSE("GPL v2"); |