blob: f5a3dc5c067c265942edf250130e008530da731b [file] [log] [blame]
Bing Zhao132ff4e2009-06-02 14:29:35 -07001/**
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 */
33void 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}
47EXPORT_SYMBOL_GPL(btmrvl_interrupt);
48
49void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
50{
Marcel Holtmann4271e082009-06-09 16:00:22 +020051 struct hci_event_hdr *hdr = (void *) skb->data;
Bing Zhao132ff4e2009-06-02 14:29:35 -070052 struct hci_ev_cmd_complete *ec;
53 u16 opcode, ocf;
54
55 BT_DBG("Enter");
56
57 if (hdr->evt == HCI_EV_CMD_COMPLETE) {
Marcel Holtmann4271e082009-06-09 16:00:22 +020058 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -070059 opcode = __le16_to_cpu(ec->opcode);
60 ocf = hci_opcode_ocf(opcode);
Marcel Holtmann4271e082009-06-09 16:00:22 +020061 if (ocf == BT_CMD_MODULE_CFG_REQ &&
62 priv->btmrvl_dev.sendcmdflag) {
Bing Zhao132ff4e2009-06-02 14:29:35 -070063 priv->btmrvl_dev.sendcmdflag = false;
64 priv->adapter->cmd_complete = true;
65 wake_up_interruptible(&priv->adapter->cmd_wait_q);
66 }
67 }
68
69 BT_DBG("Leave");
70}
71EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
72
73int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
74{
75 struct btmrvl_adapter *adapter = priv->adapter;
Bing Zhao132ff4e2009-06-02 14:29:35 -070076 struct btmrvl_event *event;
Marcel Holtmann4271e082009-06-09 16:00:22 +020077 u8 ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -070078
79 BT_DBG("Enter");
80
81 event = (struct btmrvl_event *) skb->data;
82 if (event->ec != 0xff) {
83 BT_DBG("Not Marvell Event=%x", event->ec);
84 ret = -EINVAL;
85 goto exit;
86 }
87
88 switch (event->data[0]) {
89 case BT_CMD_AUTO_SLEEP_MODE:
90 if (!event->data[2]) {
91 if (event->data[1] == BT_PS_ENABLE)
92 adapter->psmode = 1;
93 else
94 adapter->psmode = 0;
95 BT_DBG("PS Mode:%s",
96 (adapter->psmode) ? "Enable" : "Disable");
97 } else {
98 BT_DBG("PS Mode command failed");
99 }
100 break;
101
102 case BT_CMD_HOST_SLEEP_CONFIG:
103 if (!event->data[3])
104 BT_DBG("gpio=%x, gap=%x", event->data[1],
Marcel Holtmann4271e082009-06-09 16:00:22 +0200105 event->data[2]);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700106 else
107 BT_DBG("HSCFG command failed");
108 break;
109
110 case BT_CMD_HOST_SLEEP_ENABLE:
111 if (!event->data[1]) {
112 adapter->hs_state = HS_ACTIVATED;
113 if (adapter->psmode)
114 adapter->ps_state = PS_SLEEP;
115 wake_up_interruptible(&adapter->cmd_wait_q);
116 BT_DBG("HS ACTIVATED!");
117 } else {
118 BT_DBG("HS Enable failed");
119 }
120 break;
121
122 case BT_CMD_MODULE_CFG_REQ:
Marcel Holtmann4271e082009-06-09 16:00:22 +0200123 if (priv->btmrvl_dev.sendcmdflag &&
124 event->data[1] == MODULE_BRINGUP_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700125 BT_DBG("EVENT:%s", (event->data[2]) ?
126 "Bring-up failed" : "Bring-up succeed");
Marcel Holtmann4271e082009-06-09 16:00:22 +0200127 } else if (priv->btmrvl_dev.sendcmdflag &&
128 event->data[1] == MODULE_SHUTDOWN_REQ) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700129 BT_DBG("EVENT:%s", (event->data[2]) ?
130 "Shutdown failed" : "Shutdown succeed");
131 } else {
132 BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
133 ret = -EINVAL;
134 }
135 break;
136
137 case BT_EVENT_POWER_STATE:
138 if (event->data[1] == BT_PS_SLEEP)
139 adapter->ps_state = PS_SLEEP;
140 BT_DBG("EVENT:%s",
141 (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
142 break;
143
144 default:
145 BT_DBG("Unknown Event=%d", event->data[0]);
146 ret = -EINVAL;
147 break;
148 }
149
150exit:
151 if (!ret)
152 kfree_skb(skb);
153
154 BT_DBG("Leave");
155
156 return ret;
157}
158EXPORT_SYMBOL_GPL(btmrvl_process_event);
159
160int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
161{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200162 struct sk_buff *skb;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700163 struct btmrvl_cmd *cmd;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200164 u8 ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700165
166 BT_DBG("Enter");
167
168 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
169 if (skb == NULL) {
170 BT_ERR("No free skb");
171 ret = -ENOMEM;
172 goto exit;
173 }
174
Marcel Holtmann91d69732009-06-10 12:18:50 +0200175 cmd = skb_put(skb, sizeof(*cmd));
176 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700177 cmd->length = 1;
178 cmd->data[0] = subcmd;
179
180 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
181
Marcel Holtmann4271e082009-06-09 16:00:22 +0200182 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700183 skb_queue_head(&priv->adapter->tx_queue, skb);
184
185 priv->btmrvl_dev.sendcmdflag = true;
186
187 priv->adapter->cmd_complete = false;
188
189 BT_DBG("Queue module cfg Command");
190
191 wake_up_interruptible(&priv->main_thread.wait_q);
192
Marcel Holtmann4271e082009-06-09 16:00:22 +0200193 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
194 priv->adapter->cmd_complete,
195 msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700196 ret = -ETIMEDOUT;
197 BT_ERR("module_cfg_cmd(%x): timeout: %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200198 subcmd, priv->btmrvl_dev.sendcmdflag);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700199 }
200
201 BT_DBG("module cfg Command done");
202
203exit:
204 BT_DBG("Leave");
205
206 return ret;
207}
208EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
209
210static int btmrvl_enable_hs(struct btmrvl_private *priv)
211{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200212 struct sk_buff *skb;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700213 struct btmrvl_cmd *cmd;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200214 u8 ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700215
216 BT_DBG("Enter");
217
218 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
219 if (skb == NULL) {
220 BT_ERR("No free skb");
221 ret = -ENOMEM;
222 goto exit;
223 }
224
Marcel Holtmann91d69732009-06-10 12:18:50 +0200225 cmd = skb_put(skb, sizeof(*cmd));
226 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700227 cmd->length = 0;
228
229 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
230
Marcel Holtmann4271e082009-06-09 16:00:22 +0200231 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700232 skb_queue_head(&priv->adapter->tx_queue, skb);
233
234 BT_DBG("Queue hs enable Command");
235
236 wake_up_interruptible(&priv->main_thread.wait_q);
237
Marcel Holtmann4271e082009-06-09 16:00:22 +0200238 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
Bing Zhao132ff4e2009-06-02 14:29:35 -0700239 priv->adapter->hs_state,
240 msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
241 ret = -ETIMEDOUT;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200242 BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
243 priv->adapter->ps_state,
244 priv->adapter->wakeup_tries);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700245 }
246
247exit:
248 BT_DBG("Leave");
249
250 return ret;
251}
252
253int btmrvl_prepare_command(struct btmrvl_private *priv)
254{
255 struct sk_buff *skb = NULL;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700256 struct btmrvl_cmd *cmd;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200257 u8 ret = 0;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700258
259 BT_DBG("Enter");
260
261 if (priv->btmrvl_dev.hscfgcmd) {
262 priv->btmrvl_dev.hscfgcmd = 0;
263
264 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
265 if (skb == NULL) {
266 BT_ERR("No free skb");
267 ret = -ENOMEM;
268 goto exit;
269 }
270
Marcel Holtmann91d69732009-06-10 12:18:50 +0200271 cmd = skb_put(skb, sizeof(*cmd));
272 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700273 cmd->length = 2;
274 cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
275 cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
276
277 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
278
Marcel Holtmann4271e082009-06-09 16:00:22 +0200279 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700280 skb_queue_head(&priv->adapter->tx_queue, skb);
281
282 BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200283 cmd->data[0], cmd->data[1]);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700284 }
285
286 if (priv->btmrvl_dev.pscmd) {
287 priv->btmrvl_dev.pscmd = 0;
288
289 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
290 if (skb == NULL) {
291 BT_ERR("No free skb");
292 ret = -ENOMEM;
293 goto exit;
294 }
295
Marcel Holtmann91d69732009-06-10 12:18:50 +0200296 cmd = skb_put(skb, sizeof(*cmd));
297 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_AUTO_SLEEP_MODE));
Bing Zhao132ff4e2009-06-02 14:29:35 -0700298 cmd->length = 1;
299
300 if (priv->btmrvl_dev.psmode)
301 cmd->data[0] = BT_PS_ENABLE;
302 else
303 cmd->data[0] = BT_PS_DISABLE;
304
305 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
306
Marcel Holtmann4271e082009-06-09 16:00:22 +0200307 skb->dev = (void *) priv->btmrvl_dev.hcidev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700308 skb_queue_head(&priv->adapter->tx_queue, skb);
309
310 BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
311 }
312
313 if (priv->btmrvl_dev.hscmd) {
314 priv->btmrvl_dev.hscmd = 0;
315
316 if (priv->btmrvl_dev.hsmode) {
317 ret = btmrvl_enable_hs(priv);
318 } else {
319 ret = priv->hw_wakeup_firmware(priv);
320 priv->adapter->hs_state = HS_DEACTIVATED;
321 }
322 }
323
324exit:
325 BT_DBG("Leave");
326
327 return ret;
328}
329
330static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
331{
332 u8 ret = 0;
333
334 BT_DBG("Enter");
335
336 if (!skb || !skb->data) {
337 BT_DBG("Leave");
338 return -EINVAL;
339 }
340
341 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
342 BT_ERR("Tx Error: Bad skb length %d : %d",
Marcel Holtmann4271e082009-06-09 16:00:22 +0200343 skb->len, BTM_UPLD_SIZE);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700344 BT_DBG("Leave");
345 return -EINVAL;
346 }
347
348 if (skb_headroom(skb) < BTM_HEADER_LEN) {
349 struct sk_buff *tmp = skb;
350
351 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
352 if (!skb) {
353 BT_ERR("Tx Error: realloc_headroom failed %d",
354 BTM_HEADER_LEN);
355 skb = tmp;
356 BT_DBG("Leave");
357 return -EINVAL;
358 }
359
360 kfree_skb(tmp);
361 }
362
363 skb_push(skb, BTM_HEADER_LEN);
364
365 /* header type: byte[3]
366 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
367 * header length: byte[2][1][0]
368 */
369
370 skb->data[0] = (skb->len & 0x0000ff);
371 skb->data[1] = (skb->len & 0x00ff00) >> 8;
372 skb->data[2] = (skb->len & 0xff0000) >> 16;
373 skb->data[3] = bt_cb(skb)->pkt_type;
374
375 if (priv->hw_host_to_card)
376 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
377
378 BT_DBG("Leave");
379
380 return ret;
381}
382
383static void btmrvl_init_adapter(struct btmrvl_private *priv)
384{
385 BT_DBG("Enter");
386
387 skb_queue_head_init(&priv->adapter->tx_queue);
388
389 priv->adapter->ps_state = PS_AWAKE;
390
391 init_waitqueue_head(&priv->adapter->cmd_wait_q);
392
393 BT_DBG("Leave");
394}
395
396static void btmrvl_free_adapter(struct btmrvl_private *priv)
397{
398 BT_DBG("Enter");
399
400 skb_queue_purge(&priv->adapter->tx_queue);
401
402 kfree(priv->adapter);
403
404 priv->adapter = NULL;
405
406 BT_DBG("Leave");
407}
408
Marcel Holtmann4271e082009-06-09 16:00:22 +0200409static int btmrvl_ioctl(struct hci_dev *hdev,
410 unsigned int cmd, unsigned long arg)
Bing Zhao132ff4e2009-06-02 14:29:35 -0700411{
412 BT_DBG("Enter");
413
414 BT_DBG("Leave");
415
416 return -ENOIOCTLCMD;
417}
418
419static void btmrvl_destruct(struct hci_dev *hdev)
420{
421 BT_DBG("Enter");
422
423 BT_DBG("Leave");
424}
425
426static int btmrvl_send_frame(struct sk_buff *skb)
427{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200428 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700429 struct btmrvl_private *priv = NULL;
430
431 BT_DBG("Enter: type=%d, len=%d", skb->pkt_type, skb->len);
432
433 if (!hdev || !hdev->driver_data) {
434 BT_ERR("Frame for unknown HCI device");
435 BT_DBG("Leave");
436 return -ENODEV;
437 }
438
Marcel Holtmann4271e082009-06-09 16:00:22 +0200439 priv = (struct btmrvl_private *) hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700440 if (!test_bit(HCI_RUNNING, &hdev->flags)) {
441 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
442 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200443 skb->data, skb->len);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700444 BT_DBG("Leave");
445 return -EBUSY;
446 }
447
448 switch (bt_cb(skb)->pkt_type) {
449 case HCI_COMMAND_PKT:
450 hdev->stat.cmd_tx++;
451 break;
452
453 case HCI_ACLDATA_PKT:
454 hdev->stat.acl_tx++;
455 break;
456
457 case HCI_SCODATA_PKT:
458 hdev->stat.sco_tx++;
459 break;
460 }
461
462 skb_queue_tail(&priv->adapter->tx_queue, skb);
463
464 wake_up_interruptible(&priv->main_thread.wait_q);
465
466 BT_DBG("Leave");
467
468 return 0;
469}
470
471static int btmrvl_flush(struct hci_dev *hdev)
472{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200473 struct btmrvl_private *priv = hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700474
475 BT_DBG("Enter");
476
477 skb_queue_purge(&priv->adapter->tx_queue);
478
479 BT_DBG("Leave");
480
481 return 0;
482}
483
484static int btmrvl_close(struct hci_dev *hdev)
485{
Marcel Holtmann4271e082009-06-09 16:00:22 +0200486 struct btmrvl_private *priv = hdev->driver_data;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700487
488 BT_DBG("Enter");
489
490 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) {
491 BT_DBG("Leave");
492 return 0;
493 }
494
495 skb_queue_purge(&priv->adapter->tx_queue);
496
497 BT_DBG("Leave");
498
499 return 0;
500}
501
502static int btmrvl_open(struct hci_dev *hdev)
503{
504 BT_DBG("Enter");
505
506 set_bit(HCI_RUNNING, &hdev->flags);
507
508 BT_DBG("Leave");
509
510 return 0;
511}
512
513/*
514 * This function handles the event generated by firmware, rx data
515 * received from firmware, and tx data sent from kernel.
516 */
517static int btmrvl_service_main_thread(void *data)
518{
519 struct btmrvl_thread *thread = data;
520 struct btmrvl_private *priv = thread->priv;
521 struct btmrvl_adapter *adapter = priv->adapter;
522 wait_queue_t wait;
523 struct sk_buff *skb;
524 ulong flags;
525
526 BT_DBG("Enter");
527
528 init_waitqueue_entry(&wait, current);
529
530 current->flags |= PF_NOFREEZE;
531
532 for (;;) {
533 add_wait_queue(&thread->wait_q, &wait);
534
535 set_current_state(TASK_INTERRUPTIBLE);
536
537 if (adapter->wakeup_tries ||
Marcel Holtmann4271e082009-06-09 16:00:22 +0200538 ((!adapter->int_count) &&
539 (!priv->btmrvl_dev.tx_dnld_rdy ||
540 skb_queue_empty(&adapter->tx_queue)))) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700541 BT_DBG("main_thread is sleeping...");
542 schedule();
543 }
544
545 set_current_state(TASK_RUNNING);
546
547 remove_wait_queue(&thread->wait_q, &wait);
548
549 BT_DBG("main_thread woke up");
550
551 if (kthread_should_stop()) {
552 BT_DBG("main_thread: break from main thread");
553 break;
554 }
555
556 spin_lock_irqsave(&priv->driver_lock, flags);
557 if (adapter->int_count) {
558 adapter->int_count = 0;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200559 } else if (adapter->ps_state == PS_SLEEP &&
560 !skb_queue_empty(&adapter->tx_queue)) {
Bing Zhao132ff4e2009-06-02 14:29:35 -0700561 spin_unlock_irqrestore(&priv->driver_lock, flags);
562 adapter->wakeup_tries++;
563 priv->hw_wakeup_firmware(priv);
564 continue;
565 }
566 spin_unlock_irqrestore(&priv->driver_lock, flags);
567
568 if (adapter->ps_state == PS_SLEEP)
569 continue;
570
571 if (!priv->btmrvl_dev.tx_dnld_rdy)
572 continue;
573
574 skb = skb_dequeue(&adapter->tx_queue);
575 if (skb) {
576 if (btmrvl_tx_pkt(priv, skb))
577 priv->btmrvl_dev.hcidev->stat.err_tx++;
578 else
Marcel Holtmann4271e082009-06-09 16:00:22 +0200579 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700580
581 kfree_skb(skb);
582 }
583 }
584
585 BT_DBG("Leave");
586
587 return 0;
588}
589
590struct btmrvl_private *btmrvl_add_card(void *card)
591{
592 struct hci_dev *hdev = NULL;
Marcel Holtmann4271e082009-06-09 16:00:22 +0200593 struct btmrvl_private *priv;
Bing Zhao132ff4e2009-06-02 14:29:35 -0700594 int ret;
595
596 BT_DBG("Enter");
597
598 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
599 if (!priv) {
600 BT_ERR("Can not allocate priv");
601 goto err_priv;
602 }
603
604 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
605 if (!priv->adapter) {
606 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
607 goto err_adapter;
608 }
609
610 btmrvl_init_adapter(priv);
611
612 hdev = hci_alloc_dev();
613 if (!hdev) {
614 BT_ERR("Can not allocate HCI device");
615 goto err_hdev;
616 }
617
618 BT_DBG("Starting kthread...");
619 priv->main_thread.priv = priv;
620 spin_lock_init(&priv->driver_lock);
621
622 init_waitqueue_head(&priv->main_thread.wait_q);
623 priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
Marcel Holtmann4271e082009-06-09 16:00:22 +0200624 &priv->main_thread, "btmrvl_main_service");
Bing Zhao132ff4e2009-06-02 14:29:35 -0700625
626 priv->btmrvl_dev.hcidev = hdev;
627 priv->btmrvl_dev.card = card;
628
629 hdev->driver_data = priv;
630
631 priv->btmrvl_dev.tx_dnld_rdy = true;
632
633 hdev->type = HCI_SDIO;
634 hdev->open = btmrvl_open;
635 hdev->close = btmrvl_close;
636 hdev->flush = btmrvl_flush;
637 hdev->send = btmrvl_send_frame;
638 hdev->destruct = btmrvl_destruct;
639 hdev->ioctl = btmrvl_ioctl;
640 hdev->owner = THIS_MODULE;
641
642 ret = hci_register_dev(hdev);
643 if (ret < 0) {
644 BT_ERR("Can not register HCI device");
645 goto err_hci_register_dev;
646 }
647
Bing Zhaofb784f02009-06-02 14:29:37 -0700648#ifdef CONFIG_DEBUG_FS
649 btmrvl_debugfs_init(hdev);
650#endif
651
Bing Zhao132ff4e2009-06-02 14:29:35 -0700652 BT_DBG("Leave");
653 return priv;
654
655err_hci_register_dev:
656 /* Stop the thread servicing the interrupts */
657 kthread_stop(priv->main_thread.task);
658
659 hci_free_dev(hdev);
660
661err_hdev:
662 btmrvl_free_adapter(priv);
663
664err_adapter:
665 kfree(priv);
666
667err_priv:
668 BT_DBG("Leave");
669
670 return NULL;
671}
672EXPORT_SYMBOL_GPL(btmrvl_add_card);
673
674int btmrvl_remove_card(struct btmrvl_private *priv)
675{
676 struct hci_dev *hdev;
677
678 BT_DBG("Enter");
679
680 hdev = priv->btmrvl_dev.hcidev;
681
682 wake_up_interruptible(&priv->adapter->cmd_wait_q);
683
684 kthread_stop(priv->main_thread.task);
685
Bing Zhaofb784f02009-06-02 14:29:37 -0700686#ifdef CONFIG_DEBUG_FS
687 btmrvl_debugfs_remove(hdev);
688#endif
689
Bing Zhao132ff4e2009-06-02 14:29:35 -0700690 hci_unregister_dev(hdev);
691
692 hci_free_dev(hdev);
693
694 priv->btmrvl_dev.hcidev = NULL;
695
696 btmrvl_free_adapter(priv);
697
698 kfree(priv);
699
700 BT_DBG("Leave");
701
702 return 0;
703}
704EXPORT_SYMBOL_GPL(btmrvl_remove_card);
705
706MODULE_AUTHOR("Marvell International Ltd.");
Marcel Holtmann9666fb32009-06-09 21:45:04 +0200707MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
Bing Zhao132ff4e2009-06-02 14:29:35 -0700708MODULE_VERSION(VERSION);
709MODULE_LICENSE("GPL v2");