Commit | Line | Data |
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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 | ||
a59b968e PG |
21 | #include <linux/module.h> |
22 | ||
132ff4e5 BZ |
23 | #include <net/bluetooth/bluetooth.h> |
24 | #include <net/bluetooth/hci_core.h> | |
25 | ||
26 | #include "btmrvl_drv.h" | |
27 | ||
28 | #define VERSION "1.0" | |
29 | ||
30 | /* | |
31 | * This function is called by interface specific interrupt handler. | |
32 | * It updates Power Save & Host Sleep states, and wakes up the main | |
33 | * thread. | |
34 | */ | |
35 | void btmrvl_interrupt(struct btmrvl_private *priv) | |
36 | { | |
132ff4e5 BZ |
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); | |
132ff4e5 BZ |
44 | } |
45 | EXPORT_SYMBOL_GPL(btmrvl_interrupt); | |
46 | ||
47 | void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
48 | { | |
4271e08d | 49 | struct hci_event_hdr *hdr = (void *) skb->data; |
132ff4e5 BZ |
50 | struct hci_ev_cmd_complete *ec; |
51 | u16 opcode, ocf; | |
52 | ||
132ff4e5 | 53 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
4271e08d | 54 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 BZ |
55 | opcode = __le16_to_cpu(ec->opcode); |
56 | ocf = hci_opcode_ocf(opcode); | |
4271e08d MH |
57 | if (ocf == BT_CMD_MODULE_CFG_REQ && |
58 | priv->btmrvl_dev.sendcmdflag) { | |
132ff4e5 BZ |
59 | priv->btmrvl_dev.sendcmdflag = false; |
60 | priv->adapter->cmd_complete = true; | |
61 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
62 | } | |
63 | } | |
132ff4e5 BZ |
64 | } |
65 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
66 | ||
67 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
68 | { | |
69 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 70 | struct btmrvl_event *event; |
31f085fe | 71 | int ret = 0; |
132ff4e5 | 72 | |
132ff4e5 BZ |
73 | event = (struct btmrvl_event *) skb->data; |
74 | if (event->ec != 0xff) { | |
75 | BT_DBG("Not Marvell Event=%x", event->ec); | |
76 | ret = -EINVAL; | |
77 | goto exit; | |
78 | } | |
79 | ||
80 | switch (event->data[0]) { | |
81 | case BT_CMD_AUTO_SLEEP_MODE: | |
82 | if (!event->data[2]) { | |
83 | if (event->data[1] == BT_PS_ENABLE) | |
84 | adapter->psmode = 1; | |
85 | else | |
86 | adapter->psmode = 0; | |
87 | BT_DBG("PS Mode:%s", | |
88 | (adapter->psmode) ? "Enable" : "Disable"); | |
89 | } else { | |
90 | BT_DBG("PS Mode command failed"); | |
91 | } | |
92 | break; | |
93 | ||
94 | case BT_CMD_HOST_SLEEP_CONFIG: | |
95 | if (!event->data[3]) | |
96 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 97 | event->data[2]); |
132ff4e5 BZ |
98 | else |
99 | BT_DBG("HSCFG command failed"); | |
100 | break; | |
101 | ||
102 | case BT_CMD_HOST_SLEEP_ENABLE: | |
103 | if (!event->data[1]) { | |
104 | adapter->hs_state = HS_ACTIVATED; | |
105 | if (adapter->psmode) | |
106 | adapter->ps_state = PS_SLEEP; | |
107 | wake_up_interruptible(&adapter->cmd_wait_q); | |
108 | BT_DBG("HS ACTIVATED!"); | |
109 | } else { | |
110 | BT_DBG("HS Enable failed"); | |
111 | } | |
112 | break; | |
113 | ||
114 | case BT_CMD_MODULE_CFG_REQ: | |
4271e08d MH |
115 | if (priv->btmrvl_dev.sendcmdflag && |
116 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
117 | BT_DBG("EVENT:%s", |
118 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
119 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
120 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 121 | |
8f1e1742 DV |
122 | if (event->length > 3 && event->data[3]) |
123 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
124 | else |
125 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
126 | ||
127 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
128 | } else if (priv->btmrvl_dev.sendcmdflag && |
129 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
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 | ||
132ff4e5 BZ |
155 | return ret; |
156 | } | |
157 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
158 | ||
159 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) | |
160 | { | |
4271e08d | 161 | struct sk_buff *skb; |
132ff4e5 | 162 | struct btmrvl_cmd *cmd; |
9374253f | 163 | int ret = 0; |
132ff4e5 BZ |
164 | |
165 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
166 | if (skb == NULL) { | |
167 | BT_ERR("No free skb"); | |
9374253f | 168 | return -ENOMEM; |
132ff4e5 BZ |
169 | } |
170 | ||
e0721f99 | 171 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 172 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ)); |
132ff4e5 BZ |
173 | cmd->length = 1; |
174 | cmd->data[0] = subcmd; | |
175 | ||
176 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
177 | ||
4271e08d | 178 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
179 | skb_queue_head(&priv->adapter->tx_queue, skb); |
180 | ||
181 | priv->btmrvl_dev.sendcmdflag = true; | |
182 | ||
183 | priv->adapter->cmd_complete = false; | |
184 | ||
185 | BT_DBG("Queue module cfg Command"); | |
186 | ||
187 | wake_up_interruptible(&priv->main_thread.wait_q); | |
188 | ||
4271e08d MH |
189 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
190 | priv->adapter->cmd_complete, | |
191 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) { | |
132ff4e5 BZ |
192 | ret = -ETIMEDOUT; |
193 | BT_ERR("module_cfg_cmd(%x): timeout: %d", | |
4271e08d | 194 | subcmd, priv->btmrvl_dev.sendcmdflag); |
132ff4e5 BZ |
195 | } |
196 | ||
197 | BT_DBG("module cfg Command done"); | |
198 | ||
132ff4e5 BZ |
199 | return ret; |
200 | } | |
201 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
202 | ||
32fd6398 AK |
203 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
204 | { | |
205 | struct sk_buff *skb; | |
206 | struct btmrvl_cmd *cmd; | |
207 | ||
208 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
209 | if (skb == NULL) { | |
210 | BT_ERR("No free skb"); | |
211 | return -ENOMEM; | |
212 | } | |
213 | ||
214 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); | |
215 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, | |
216 | BT_CMD_AUTO_SLEEP_MODE)); | |
217 | cmd->length = 1; | |
218 | ||
219 | if (priv->btmrvl_dev.psmode) | |
220 | cmd->data[0] = BT_PS_ENABLE; | |
221 | else | |
222 | cmd->data[0] = BT_PS_DISABLE; | |
223 | ||
224 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
225 | ||
226 | skb->dev = (void *) priv->btmrvl_dev.hcidev; | |
227 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
228 | ||
229 | BT_DBG("Queue PSMODE Command:%d", cmd->data[0]); | |
230 | ||
231 | return 0; | |
232 | } | |
233 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
234 | ||
132ff4e5 BZ |
235 | static int btmrvl_enable_hs(struct btmrvl_private *priv) |
236 | { | |
4271e08d | 237 | struct sk_buff *skb; |
132ff4e5 | 238 | struct btmrvl_cmd *cmd; |
9374253f | 239 | int ret = 0; |
132ff4e5 BZ |
240 | |
241 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
242 | if (skb == NULL) { | |
243 | BT_ERR("No free skb"); | |
9374253f | 244 | return -ENOMEM; |
132ff4e5 BZ |
245 | } |
246 | ||
e0721f99 | 247 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 248 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE)); |
132ff4e5 BZ |
249 | cmd->length = 0; |
250 | ||
251 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
252 | ||
4271e08d | 253 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
254 | skb_queue_head(&priv->adapter->tx_queue, skb); |
255 | ||
256 | BT_DBG("Queue hs enable Command"); | |
257 | ||
258 | wake_up_interruptible(&priv->main_thread.wait_q); | |
259 | ||
4271e08d | 260 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
132ff4e5 BZ |
261 | priv->adapter->hs_state, |
262 | msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) { | |
263 | ret = -ETIMEDOUT; | |
4271e08d MH |
264 | BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state, |
265 | priv->adapter->ps_state, | |
266 | priv->adapter->wakeup_tries); | |
132ff4e5 BZ |
267 | } |
268 | ||
132ff4e5 BZ |
269 | return ret; |
270 | } | |
271 | ||
272 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
273 | { | |
274 | struct sk_buff *skb = NULL; | |
132ff4e5 | 275 | struct btmrvl_cmd *cmd; |
9374253f | 276 | int ret = 0; |
132ff4e5 BZ |
277 | |
278 | if (priv->btmrvl_dev.hscfgcmd) { | |
279 | priv->btmrvl_dev.hscfgcmd = 0; | |
280 | ||
281 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
282 | if (skb == NULL) { | |
283 | BT_ERR("No free skb"); | |
9374253f | 284 | return -ENOMEM; |
132ff4e5 BZ |
285 | } |
286 | ||
e0721f99 | 287 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 288 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG)); |
132ff4e5 BZ |
289 | cmd->length = 2; |
290 | cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; | |
291 | cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
292 | ||
293 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
294 | ||
4271e08d | 295 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
296 | skb_queue_head(&priv->adapter->tx_queue, skb); |
297 | ||
298 | BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", | |
4271e08d | 299 | cmd->data[0], cmd->data[1]); |
132ff4e5 BZ |
300 | } |
301 | ||
302 | if (priv->btmrvl_dev.pscmd) { | |
303 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 304 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
305 | } |
306 | ||
307 | if (priv->btmrvl_dev.hscmd) { | |
308 | priv->btmrvl_dev.hscmd = 0; | |
309 | ||
310 | if (priv->btmrvl_dev.hsmode) { | |
311 | ret = btmrvl_enable_hs(priv); | |
312 | } else { | |
313 | ret = priv->hw_wakeup_firmware(priv); | |
314 | priv->adapter->hs_state = HS_DEACTIVATED; | |
315 | } | |
316 | } | |
317 | ||
132ff4e5 BZ |
318 | return ret; |
319 | } | |
320 | ||
321 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
322 | { | |
9374253f | 323 | int ret = 0; |
132ff4e5 | 324 | |
9374253f | 325 | if (!skb || !skb->data) |
132ff4e5 | 326 | return -EINVAL; |
132ff4e5 BZ |
327 | |
328 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
329 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 330 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
331 | return -EINVAL; |
332 | } | |
333 | ||
334 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
335 | struct sk_buff *tmp = skb; | |
336 | ||
337 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
338 | if (!skb) { | |
339 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
340 | BTM_HEADER_LEN); | |
341 | skb = tmp; | |
132ff4e5 BZ |
342 | return -EINVAL; |
343 | } | |
344 | ||
345 | kfree_skb(tmp); | |
346 | } | |
347 | ||
348 | skb_push(skb, BTM_HEADER_LEN); | |
349 | ||
350 | /* header type: byte[3] | |
351 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
352 | * header length: byte[2][1][0] | |
353 | */ | |
354 | ||
355 | skb->data[0] = (skb->len & 0x0000ff); | |
356 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
357 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
358 | skb->data[3] = bt_cb(skb)->pkt_type; | |
359 | ||
360 | if (priv->hw_host_to_card) | |
361 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
362 | ||
132ff4e5 BZ |
363 | return ret; |
364 | } | |
365 | ||
366 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
367 | { | |
132ff4e5 BZ |
368 | skb_queue_head_init(&priv->adapter->tx_queue); |
369 | ||
370 | priv->adapter->ps_state = PS_AWAKE; | |
371 | ||
372 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
132ff4e5 BZ |
373 | } |
374 | ||
375 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
376 | { | |
132ff4e5 BZ |
377 | skb_queue_purge(&priv->adapter->tx_queue); |
378 | ||
379 | kfree(priv->adapter); | |
380 | ||
381 | priv->adapter = NULL; | |
132ff4e5 BZ |
382 | } |
383 | ||
4271e08d MH |
384 | static int btmrvl_ioctl(struct hci_dev *hdev, |
385 | unsigned int cmd, unsigned long arg) | |
132ff4e5 | 386 | { |
132ff4e5 BZ |
387 | return -ENOIOCTLCMD; |
388 | } | |
389 | ||
390 | static void btmrvl_destruct(struct hci_dev *hdev) | |
391 | { | |
132ff4e5 BZ |
392 | } |
393 | ||
394 | static int btmrvl_send_frame(struct sk_buff *skb) | |
395 | { | |
4271e08d | 396 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
132ff4e5 BZ |
397 | struct btmrvl_private *priv = NULL; |
398 | ||
9374253f | 399 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 BZ |
400 | |
401 | if (!hdev || !hdev->driver_data) { | |
402 | BT_ERR("Frame for unknown HCI device"); | |
132ff4e5 BZ |
403 | return -ENODEV; |
404 | } | |
405 | ||
4271e08d | 406 | priv = (struct btmrvl_private *) hdev->driver_data; |
132ff4e5 BZ |
407 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
408 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
409 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 410 | skb->data, skb->len); |
132ff4e5 BZ |
411 | return -EBUSY; |
412 | } | |
413 | ||
414 | switch (bt_cb(skb)->pkt_type) { | |
415 | case HCI_COMMAND_PKT: | |
416 | hdev->stat.cmd_tx++; | |
417 | break; | |
418 | ||
419 | case HCI_ACLDATA_PKT: | |
420 | hdev->stat.acl_tx++; | |
421 | break; | |
422 | ||
423 | case HCI_SCODATA_PKT: | |
424 | hdev->stat.sco_tx++; | |
425 | break; | |
426 | } | |
427 | ||
428 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
429 | ||
430 | wake_up_interruptible(&priv->main_thread.wait_q); | |
431 | ||
132ff4e5 BZ |
432 | return 0; |
433 | } | |
434 | ||
435 | static int btmrvl_flush(struct hci_dev *hdev) | |
436 | { | |
4271e08d | 437 | struct btmrvl_private *priv = hdev->driver_data; |
132ff4e5 | 438 | |
132ff4e5 BZ |
439 | skb_queue_purge(&priv->adapter->tx_queue); |
440 | ||
132ff4e5 BZ |
441 | return 0; |
442 | } | |
443 | ||
444 | static int btmrvl_close(struct hci_dev *hdev) | |
445 | { | |
4271e08d | 446 | struct btmrvl_private *priv = hdev->driver_data; |
132ff4e5 | 447 | |
9374253f | 448 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 449 | return 0; |
132ff4e5 BZ |
450 | |
451 | skb_queue_purge(&priv->adapter->tx_queue); | |
452 | ||
132ff4e5 BZ |
453 | return 0; |
454 | } | |
455 | ||
456 | static int btmrvl_open(struct hci_dev *hdev) | |
457 | { | |
132ff4e5 BZ |
458 | set_bit(HCI_RUNNING, &hdev->flags); |
459 | ||
132ff4e5 BZ |
460 | return 0; |
461 | } | |
462 | ||
463 | /* | |
464 | * This function handles the event generated by firmware, rx data | |
465 | * received from firmware, and tx data sent from kernel. | |
466 | */ | |
467 | static int btmrvl_service_main_thread(void *data) | |
468 | { | |
469 | struct btmrvl_thread *thread = data; | |
470 | struct btmrvl_private *priv = thread->priv; | |
471 | struct btmrvl_adapter *adapter = priv->adapter; | |
472 | wait_queue_t wait; | |
473 | struct sk_buff *skb; | |
474 | ulong flags; | |
475 | ||
132ff4e5 BZ |
476 | init_waitqueue_entry(&wait, current); |
477 | ||
132ff4e5 BZ |
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"); |