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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 | { | |
132ff4e5 BZ |
35 | priv->adapter->ps_state = PS_AWAKE; |
36 | ||
37 | priv->adapter->wakeup_tries = 0; | |
38 | ||
39 | priv->adapter->int_count++; | |
40 | ||
41 | wake_up_interruptible(&priv->main_thread.wait_q); | |
132ff4e5 BZ |
42 | } |
43 | EXPORT_SYMBOL_GPL(btmrvl_interrupt); | |
44 | ||
45 | void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
46 | { | |
4271e08d | 47 | struct hci_event_hdr *hdr = (void *) skb->data; |
132ff4e5 BZ |
48 | struct hci_ev_cmd_complete *ec; |
49 | u16 opcode, ocf; | |
50 | ||
132ff4e5 | 51 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
4271e08d | 52 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 BZ |
53 | opcode = __le16_to_cpu(ec->opcode); |
54 | ocf = hci_opcode_ocf(opcode); | |
4271e08d MH |
55 | if (ocf == BT_CMD_MODULE_CFG_REQ && |
56 | priv->btmrvl_dev.sendcmdflag) { | |
132ff4e5 BZ |
57 | priv->btmrvl_dev.sendcmdflag = false; |
58 | priv->adapter->cmd_complete = true; | |
59 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
60 | } | |
61 | } | |
132ff4e5 BZ |
62 | } |
63 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
64 | ||
65 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
66 | { | |
67 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 68 | struct btmrvl_event *event; |
31f085fe | 69 | int ret = 0; |
132ff4e5 | 70 | |
132ff4e5 BZ |
71 | event = (struct btmrvl_event *) skb->data; |
72 | if (event->ec != 0xff) { | |
73 | BT_DBG("Not Marvell Event=%x", event->ec); | |
74 | ret = -EINVAL; | |
75 | goto exit; | |
76 | } | |
77 | ||
78 | switch (event->data[0]) { | |
79 | case BT_CMD_AUTO_SLEEP_MODE: | |
80 | if (!event->data[2]) { | |
81 | if (event->data[1] == BT_PS_ENABLE) | |
82 | adapter->psmode = 1; | |
83 | else | |
84 | adapter->psmode = 0; | |
85 | BT_DBG("PS Mode:%s", | |
86 | (adapter->psmode) ? "Enable" : "Disable"); | |
87 | } else { | |
88 | BT_DBG("PS Mode command failed"); | |
89 | } | |
90 | break; | |
91 | ||
92 | case BT_CMD_HOST_SLEEP_CONFIG: | |
93 | if (!event->data[3]) | |
94 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 95 | event->data[2]); |
132ff4e5 BZ |
96 | else |
97 | BT_DBG("HSCFG command failed"); | |
98 | break; | |
99 | ||
100 | case BT_CMD_HOST_SLEEP_ENABLE: | |
101 | if (!event->data[1]) { | |
102 | adapter->hs_state = HS_ACTIVATED; | |
103 | if (adapter->psmode) | |
104 | adapter->ps_state = PS_SLEEP; | |
105 | wake_up_interruptible(&adapter->cmd_wait_q); | |
106 | BT_DBG("HS ACTIVATED!"); | |
107 | } else { | |
108 | BT_DBG("HS Enable failed"); | |
109 | } | |
110 | break; | |
111 | ||
112 | case BT_CMD_MODULE_CFG_REQ: | |
4271e08d MH |
113 | if (priv->btmrvl_dev.sendcmdflag && |
114 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
115 | BT_DBG("EVENT:%s", |
116 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
117 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
118 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 119 | |
8f1e1742 DV |
120 | if (event->length > 3 && event->data[3]) |
121 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
122 | else |
123 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
124 | ||
125 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
126 | } else if (priv->btmrvl_dev.sendcmdflag && |
127 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
128 | BT_DBG("EVENT:%s", (event->data[2]) ? |
129 | "Shutdown failed" : "Shutdown succeed"); | |
130 | } else { | |
131 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
132 | ret = -EINVAL; | |
133 | } | |
134 | break; | |
135 | ||
136 | case BT_EVENT_POWER_STATE: | |
137 | if (event->data[1] == BT_PS_SLEEP) | |
138 | adapter->ps_state = PS_SLEEP; | |
139 | BT_DBG("EVENT:%s", | |
140 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
141 | break; | |
142 | ||
143 | default: | |
144 | BT_DBG("Unknown Event=%d", event->data[0]); | |
145 | ret = -EINVAL; | |
146 | break; | |
147 | } | |
148 | ||
149 | exit: | |
150 | if (!ret) | |
151 | kfree_skb(skb); | |
152 | ||
132ff4e5 BZ |
153 | return ret; |
154 | } | |
155 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
156 | ||
157 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) | |
158 | { | |
4271e08d | 159 | struct sk_buff *skb; |
132ff4e5 | 160 | struct btmrvl_cmd *cmd; |
9374253f | 161 | int ret = 0; |
132ff4e5 BZ |
162 | |
163 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
164 | if (skb == NULL) { | |
165 | BT_ERR("No free skb"); | |
9374253f | 166 | return -ENOMEM; |
132ff4e5 BZ |
167 | } |
168 | ||
e0721f99 | 169 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 170 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ)); |
132ff4e5 BZ |
171 | cmd->length = 1; |
172 | cmd->data[0] = subcmd; | |
173 | ||
174 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
175 | ||
4271e08d | 176 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
177 | skb_queue_head(&priv->adapter->tx_queue, skb); |
178 | ||
179 | priv->btmrvl_dev.sendcmdflag = true; | |
180 | ||
181 | priv->adapter->cmd_complete = false; | |
182 | ||
183 | BT_DBG("Queue module cfg Command"); | |
184 | ||
185 | wake_up_interruptible(&priv->main_thread.wait_q); | |
186 | ||
4271e08d MH |
187 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
188 | priv->adapter->cmd_complete, | |
189 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) { | |
132ff4e5 BZ |
190 | ret = -ETIMEDOUT; |
191 | BT_ERR("module_cfg_cmd(%x): timeout: %d", | |
4271e08d | 192 | subcmd, priv->btmrvl_dev.sendcmdflag); |
132ff4e5 BZ |
193 | } |
194 | ||
195 | BT_DBG("module cfg Command done"); | |
196 | ||
132ff4e5 BZ |
197 | return ret; |
198 | } | |
199 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
200 | ||
32fd6398 AK |
201 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
202 | { | |
203 | struct sk_buff *skb; | |
204 | struct btmrvl_cmd *cmd; | |
205 | ||
206 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
207 | if (skb == NULL) { | |
208 | BT_ERR("No free skb"); | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
212 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); | |
213 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, | |
214 | BT_CMD_AUTO_SLEEP_MODE)); | |
215 | cmd->length = 1; | |
216 | ||
217 | if (priv->btmrvl_dev.psmode) | |
218 | cmd->data[0] = BT_PS_ENABLE; | |
219 | else | |
220 | cmd->data[0] = BT_PS_DISABLE; | |
221 | ||
222 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
223 | ||
224 | skb->dev = (void *) priv->btmrvl_dev.hcidev; | |
225 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
226 | ||
227 | BT_DBG("Queue PSMODE Command:%d", cmd->data[0]); | |
228 | ||
229 | return 0; | |
230 | } | |
231 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
232 | ||
132ff4e5 BZ |
233 | static int btmrvl_enable_hs(struct btmrvl_private *priv) |
234 | { | |
4271e08d | 235 | struct sk_buff *skb; |
132ff4e5 | 236 | struct btmrvl_cmd *cmd; |
9374253f | 237 | int ret = 0; |
132ff4e5 BZ |
238 | |
239 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
240 | if (skb == NULL) { | |
241 | BT_ERR("No free skb"); | |
9374253f | 242 | return -ENOMEM; |
132ff4e5 BZ |
243 | } |
244 | ||
e0721f99 | 245 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 246 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE)); |
132ff4e5 BZ |
247 | cmd->length = 0; |
248 | ||
249 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
250 | ||
4271e08d | 251 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
252 | skb_queue_head(&priv->adapter->tx_queue, skb); |
253 | ||
254 | BT_DBG("Queue hs enable Command"); | |
255 | ||
256 | wake_up_interruptible(&priv->main_thread.wait_q); | |
257 | ||
4271e08d | 258 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
132ff4e5 BZ |
259 | priv->adapter->hs_state, |
260 | msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) { | |
261 | ret = -ETIMEDOUT; | |
4271e08d MH |
262 | BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state, |
263 | priv->adapter->ps_state, | |
264 | priv->adapter->wakeup_tries); | |
132ff4e5 BZ |
265 | } |
266 | ||
132ff4e5 BZ |
267 | return ret; |
268 | } | |
269 | ||
270 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
271 | { | |
272 | struct sk_buff *skb = NULL; | |
132ff4e5 | 273 | struct btmrvl_cmd *cmd; |
9374253f | 274 | int ret = 0; |
132ff4e5 BZ |
275 | |
276 | if (priv->btmrvl_dev.hscfgcmd) { | |
277 | priv->btmrvl_dev.hscfgcmd = 0; | |
278 | ||
279 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
280 | if (skb == NULL) { | |
281 | BT_ERR("No free skb"); | |
9374253f | 282 | return -ENOMEM; |
132ff4e5 BZ |
283 | } |
284 | ||
e0721f99 | 285 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 286 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG)); |
132ff4e5 BZ |
287 | cmd->length = 2; |
288 | cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; | |
289 | cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
290 | ||
291 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
292 | ||
4271e08d | 293 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
294 | skb_queue_head(&priv->adapter->tx_queue, skb); |
295 | ||
296 | BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", | |
4271e08d | 297 | cmd->data[0], cmd->data[1]); |
132ff4e5 BZ |
298 | } |
299 | ||
300 | if (priv->btmrvl_dev.pscmd) { | |
301 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 302 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
303 | } |
304 | ||
305 | if (priv->btmrvl_dev.hscmd) { | |
306 | priv->btmrvl_dev.hscmd = 0; | |
307 | ||
308 | if (priv->btmrvl_dev.hsmode) { | |
309 | ret = btmrvl_enable_hs(priv); | |
310 | } else { | |
311 | ret = priv->hw_wakeup_firmware(priv); | |
312 | priv->adapter->hs_state = HS_DEACTIVATED; | |
313 | } | |
314 | } | |
315 | ||
132ff4e5 BZ |
316 | return ret; |
317 | } | |
318 | ||
319 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
320 | { | |
9374253f | 321 | int ret = 0; |
132ff4e5 | 322 | |
9374253f | 323 | if (!skb || !skb->data) |
132ff4e5 | 324 | return -EINVAL; |
132ff4e5 BZ |
325 | |
326 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
327 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 328 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
329 | return -EINVAL; |
330 | } | |
331 | ||
332 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
333 | struct sk_buff *tmp = skb; | |
334 | ||
335 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
336 | if (!skb) { | |
337 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
338 | BTM_HEADER_LEN); | |
339 | skb = tmp; | |
132ff4e5 BZ |
340 | return -EINVAL; |
341 | } | |
342 | ||
343 | kfree_skb(tmp); | |
344 | } | |
345 | ||
346 | skb_push(skb, BTM_HEADER_LEN); | |
347 | ||
348 | /* header type: byte[3] | |
349 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
350 | * header length: byte[2][1][0] | |
351 | */ | |
352 | ||
353 | skb->data[0] = (skb->len & 0x0000ff); | |
354 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
355 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
356 | skb->data[3] = bt_cb(skb)->pkt_type; | |
357 | ||
358 | if (priv->hw_host_to_card) | |
359 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
360 | ||
132ff4e5 BZ |
361 | return ret; |
362 | } | |
363 | ||
364 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
365 | { | |
132ff4e5 BZ |
366 | skb_queue_head_init(&priv->adapter->tx_queue); |
367 | ||
368 | priv->adapter->ps_state = PS_AWAKE; | |
369 | ||
370 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
132ff4e5 BZ |
371 | } |
372 | ||
373 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
374 | { | |
132ff4e5 BZ |
375 | skb_queue_purge(&priv->adapter->tx_queue); |
376 | ||
377 | kfree(priv->adapter); | |
378 | ||
379 | priv->adapter = NULL; | |
132ff4e5 BZ |
380 | } |
381 | ||
4271e08d MH |
382 | static int btmrvl_ioctl(struct hci_dev *hdev, |
383 | unsigned int cmd, unsigned long arg) | |
132ff4e5 | 384 | { |
132ff4e5 BZ |
385 | return -ENOIOCTLCMD; |
386 | } | |
387 | ||
388 | static void btmrvl_destruct(struct hci_dev *hdev) | |
389 | { | |
132ff4e5 BZ |
390 | } |
391 | ||
392 | static int btmrvl_send_frame(struct sk_buff *skb) | |
393 | { | |
4271e08d | 394 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
132ff4e5 BZ |
395 | struct btmrvl_private *priv = NULL; |
396 | ||
9374253f | 397 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 BZ |
398 | |
399 | if (!hdev || !hdev->driver_data) { | |
400 | BT_ERR("Frame for unknown HCI device"); | |
132ff4e5 BZ |
401 | return -ENODEV; |
402 | } | |
403 | ||
4271e08d | 404 | priv = (struct btmrvl_private *) hdev->driver_data; |
132ff4e5 BZ |
405 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
406 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
407 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 408 | skb->data, skb->len); |
132ff4e5 BZ |
409 | return -EBUSY; |
410 | } | |
411 | ||
412 | switch (bt_cb(skb)->pkt_type) { | |
413 | case HCI_COMMAND_PKT: | |
414 | hdev->stat.cmd_tx++; | |
415 | break; | |
416 | ||
417 | case HCI_ACLDATA_PKT: | |
418 | hdev->stat.acl_tx++; | |
419 | break; | |
420 | ||
421 | case HCI_SCODATA_PKT: | |
422 | hdev->stat.sco_tx++; | |
423 | break; | |
424 | } | |
425 | ||
426 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
427 | ||
428 | wake_up_interruptible(&priv->main_thread.wait_q); | |
429 | ||
132ff4e5 BZ |
430 | return 0; |
431 | } | |
432 | ||
433 | static int btmrvl_flush(struct hci_dev *hdev) | |
434 | { | |
4271e08d | 435 | struct btmrvl_private *priv = hdev->driver_data; |
132ff4e5 | 436 | |
132ff4e5 BZ |
437 | skb_queue_purge(&priv->adapter->tx_queue); |
438 | ||
132ff4e5 BZ |
439 | return 0; |
440 | } | |
441 | ||
442 | static int btmrvl_close(struct hci_dev *hdev) | |
443 | { | |
4271e08d | 444 | struct btmrvl_private *priv = hdev->driver_data; |
132ff4e5 | 445 | |
9374253f | 446 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 447 | return 0; |
132ff4e5 BZ |
448 | |
449 | skb_queue_purge(&priv->adapter->tx_queue); | |
450 | ||
132ff4e5 BZ |
451 | return 0; |
452 | } | |
453 | ||
454 | static int btmrvl_open(struct hci_dev *hdev) | |
455 | { | |
132ff4e5 BZ |
456 | set_bit(HCI_RUNNING, &hdev->flags); |
457 | ||
132ff4e5 BZ |
458 | return 0; |
459 | } | |
460 | ||
461 | /* | |
462 | * This function handles the event generated by firmware, rx data | |
463 | * received from firmware, and tx data sent from kernel. | |
464 | */ | |
465 | static int btmrvl_service_main_thread(void *data) | |
466 | { | |
467 | struct btmrvl_thread *thread = data; | |
468 | struct btmrvl_private *priv = thread->priv; | |
469 | struct btmrvl_adapter *adapter = priv->adapter; | |
470 | wait_queue_t wait; | |
471 | struct sk_buff *skb; | |
472 | ulong flags; | |
473 | ||
132ff4e5 BZ |
474 | init_waitqueue_entry(&wait, current); |
475 | ||
476 | current->flags |= PF_NOFREEZE; | |
477 | ||
478 | for (;;) { | |
479 | add_wait_queue(&thread->wait_q, &wait); | |
480 | ||
481 | set_current_state(TASK_INTERRUPTIBLE); | |
482 | ||
483 | if (adapter->wakeup_tries || | |
4271e08d MH |
484 | ((!adapter->int_count) && |
485 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
486 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
487 | BT_DBG("main_thread is sleeping..."); |
488 | schedule(); | |
489 | } | |
490 | ||
491 | set_current_state(TASK_RUNNING); | |
492 | ||
493 | remove_wait_queue(&thread->wait_q, &wait); | |
494 | ||
495 | BT_DBG("main_thread woke up"); | |
496 | ||
497 | if (kthread_should_stop()) { | |
498 | BT_DBG("main_thread: break from main thread"); | |
499 | break; | |
500 | } | |
501 | ||
502 | spin_lock_irqsave(&priv->driver_lock, flags); | |
503 | if (adapter->int_count) { | |
504 | adapter->int_count = 0; | |
d1d10d78 AK |
505 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
506 | priv->hw_process_int_status(priv); | |
4271e08d MH |
507 | } else if (adapter->ps_state == PS_SLEEP && |
508 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
509 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
510 | adapter->wakeup_tries++; | |
511 | priv->hw_wakeup_firmware(priv); | |
512 | continue; | |
d1d10d78 AK |
513 | } else { |
514 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 515 | } |
132ff4e5 BZ |
516 | |
517 | if (adapter->ps_state == PS_SLEEP) | |
518 | continue; | |
519 | ||
520 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
521 | continue; | |
522 | ||
523 | skb = skb_dequeue(&adapter->tx_queue); | |
524 | if (skb) { | |
525 | if (btmrvl_tx_pkt(priv, skb)) | |
526 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
527 | else | |
4271e08d | 528 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
529 | |
530 | kfree_skb(skb); | |
531 | } | |
532 | } | |
533 | ||
132ff4e5 BZ |
534 | return 0; |
535 | } | |
536 | ||
64061607 | 537 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
538 | { |
539 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
540 | int ret; |
541 | ||
132ff4e5 BZ |
542 | hdev = hci_alloc_dev(); |
543 | if (!hdev) { | |
544 | BT_ERR("Can not allocate HCI device"); | |
545 | goto err_hdev; | |
546 | } | |
547 | ||
132ff4e5 | 548 | priv->btmrvl_dev.hcidev = hdev; |
132ff4e5 BZ |
549 | hdev->driver_data = priv; |
550 | ||
c13854ce | 551 | hdev->bus = HCI_SDIO; |
132ff4e5 BZ |
552 | hdev->open = btmrvl_open; |
553 | hdev->close = btmrvl_close; | |
554 | hdev->flush = btmrvl_flush; | |
555 | hdev->send = btmrvl_send_frame; | |
556 | hdev->destruct = btmrvl_destruct; | |
557 | hdev->ioctl = btmrvl_ioctl; | |
558 | hdev->owner = THIS_MODULE; | |
559 | ||
64061607 BZ |
560 | btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); |
561 | ||
f120c6b6 BZ |
562 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
563 | ||
132ff4e5 BZ |
564 | ret = hci_register_dev(hdev); |
565 | if (ret < 0) { | |
566 | BT_ERR("Can not register HCI device"); | |
567 | goto err_hci_register_dev; | |
568 | } | |
569 | ||
fb784f05 BZ |
570 | #ifdef CONFIG_DEBUG_FS |
571 | btmrvl_debugfs_init(hdev); | |
572 | #endif | |
573 | ||
64061607 | 574 | return 0; |
132ff4e5 BZ |
575 | |
576 | err_hci_register_dev: | |
132ff4e5 BZ |
577 | hci_free_dev(hdev); |
578 | ||
579 | err_hdev: | |
64061607 BZ |
580 | /* Stop the thread servicing the interrupts */ |
581 | kthread_stop(priv->main_thread.task); | |
582 | ||
132ff4e5 | 583 | btmrvl_free_adapter(priv); |
64061607 BZ |
584 | kfree(priv); |
585 | ||
586 | return -ENOMEM; | |
587 | } | |
588 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
589 | ||
590 | struct btmrvl_private *btmrvl_add_card(void *card) | |
591 | { | |
592 | struct btmrvl_private *priv; | |
593 | ||
594 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
595 | if (!priv) { | |
596 | BT_ERR("Can not allocate priv"); | |
597 | goto err_priv; | |
598 | } | |
599 | ||
600 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
601 | if (!priv->adapter) { | |
602 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
603 | goto err_adapter; | |
604 | } | |
605 | ||
606 | btmrvl_init_adapter(priv); | |
607 | ||
608 | BT_DBG("Starting kthread..."); | |
609 | priv->main_thread.priv = priv; | |
610 | spin_lock_init(&priv->driver_lock); | |
611 | ||
612 | init_waitqueue_head(&priv->main_thread.wait_q); | |
613 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
614 | &priv->main_thread, "btmrvl_main_service"); | |
615 | ||
616 | priv->btmrvl_dev.card = card; | |
617 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
618 | ||
619 | return priv; | |
132ff4e5 BZ |
620 | |
621 | err_adapter: | |
622 | kfree(priv); | |
623 | ||
624 | err_priv: | |
132ff4e5 BZ |
625 | return NULL; |
626 | } | |
627 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
628 | ||
629 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
630 | { | |
631 | struct hci_dev *hdev; | |
632 | ||
132ff4e5 BZ |
633 | hdev = priv->btmrvl_dev.hcidev; |
634 | ||
635 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
636 | ||
637 | kthread_stop(priv->main_thread.task); | |
638 | ||
fb784f05 BZ |
639 | #ifdef CONFIG_DEBUG_FS |
640 | btmrvl_debugfs_remove(hdev); | |
641 | #endif | |
642 | ||
132ff4e5 BZ |
643 | hci_unregister_dev(hdev); |
644 | ||
645 | hci_free_dev(hdev); | |
646 | ||
647 | priv->btmrvl_dev.hcidev = NULL; | |
648 | ||
649 | btmrvl_free_adapter(priv); | |
650 | ||
651 | kfree(priv); | |
652 | ||
132ff4e5 BZ |
653 | return 0; |
654 | } | |
655 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
656 | ||
657 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 658 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
659 | MODULE_VERSION(VERSION); |
660 | MODULE_LICENSE("GPL v2"); |