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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 | ||
ea1e76a3 | 47 | bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) |
132ff4e5 | 48 | { |
4271e08d | 49 | struct hci_event_hdr *hdr = (void *) skb->data; |
132ff4e5 | 50 | |
132ff4e5 | 51 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
2c2453f3 AE |
52 | struct hci_ev_cmd_complete *ec; |
53 | u16 opcode, ocf, ogf; | |
54 | ||
4271e08d | 55 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 BZ |
56 | opcode = __le16_to_cpu(ec->opcode); |
57 | ocf = hci_opcode_ocf(opcode); | |
ea1e76a3 AE |
58 | ogf = hci_opcode_ogf(opcode); |
59 | ||
4271e08d MH |
60 | if (ocf == BT_CMD_MODULE_CFG_REQ && |
61 | priv->btmrvl_dev.sendcmdflag) { | |
132ff4e5 BZ |
62 | priv->btmrvl_dev.sendcmdflag = false; |
63 | priv->adapter->cmd_complete = true; | |
64 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
65 | } | |
ea1e76a3 AE |
66 | |
67 | if (ogf == OGF) { | |
2c2453f3 AE |
68 | BT_DBG("vendor event skipped: ogf 0x%4.4x ocf 0x%4.4x", |
69 | ogf, ocf); | |
ea1e76a3 AE |
70 | kfree_skb(skb); |
71 | return false; | |
72 | } | |
132ff4e5 | 73 | } |
ea1e76a3 AE |
74 | |
75 | return true; | |
132ff4e5 BZ |
76 | } |
77 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
78 | ||
79 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
80 | { | |
81 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 82 | struct btmrvl_event *event; |
31f085fe | 83 | int ret = 0; |
132ff4e5 | 84 | |
132ff4e5 BZ |
85 | event = (struct btmrvl_event *) skb->data; |
86 | if (event->ec != 0xff) { | |
87 | BT_DBG("Not Marvell Event=%x", event->ec); | |
88 | ret = -EINVAL; | |
89 | goto exit; | |
90 | } | |
91 | ||
92 | switch (event->data[0]) { | |
93 | case BT_CMD_AUTO_SLEEP_MODE: | |
94 | if (!event->data[2]) { | |
95 | if (event->data[1] == BT_PS_ENABLE) | |
96 | adapter->psmode = 1; | |
97 | else | |
98 | adapter->psmode = 0; | |
99 | BT_DBG("PS Mode:%s", | |
100 | (adapter->psmode) ? "Enable" : "Disable"); | |
101 | } else { | |
102 | BT_DBG("PS Mode command failed"); | |
103 | } | |
104 | break; | |
105 | ||
106 | case BT_CMD_HOST_SLEEP_CONFIG: | |
107 | if (!event->data[3]) | |
108 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 109 | event->data[2]); |
132ff4e5 BZ |
110 | else |
111 | BT_DBG("HSCFG command failed"); | |
112 | break; | |
113 | ||
114 | case BT_CMD_HOST_SLEEP_ENABLE: | |
115 | if (!event->data[1]) { | |
116 | adapter->hs_state = HS_ACTIVATED; | |
117 | if (adapter->psmode) | |
118 | adapter->ps_state = PS_SLEEP; | |
119 | wake_up_interruptible(&adapter->cmd_wait_q); | |
120 | BT_DBG("HS ACTIVATED!"); | |
121 | } else { | |
122 | BT_DBG("HS Enable failed"); | |
123 | } | |
124 | break; | |
125 | ||
126 | case BT_CMD_MODULE_CFG_REQ: | |
4271e08d MH |
127 | if (priv->btmrvl_dev.sendcmdflag && |
128 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
129 | BT_DBG("EVENT:%s", |
130 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
131 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
132 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 133 | |
8f1e1742 DV |
134 | if (event->length > 3 && event->data[3]) |
135 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
136 | else |
137 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
138 | ||
139 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
140 | } else if (priv->btmrvl_dev.sendcmdflag && |
141 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
142 | BT_DBG("EVENT:%s", (event->data[2]) ? |
143 | "Shutdown failed" : "Shutdown succeed"); | |
144 | } else { | |
145 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
146 | ret = -EINVAL; | |
147 | } | |
148 | break; | |
149 | ||
150 | case BT_EVENT_POWER_STATE: | |
151 | if (event->data[1] == BT_PS_SLEEP) | |
152 | adapter->ps_state = PS_SLEEP; | |
153 | BT_DBG("EVENT:%s", | |
154 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
155 | break; | |
156 | ||
157 | default: | |
158 | BT_DBG("Unknown Event=%d", event->data[0]); | |
159 | ret = -EINVAL; | |
160 | break; | |
161 | } | |
162 | ||
163 | exit: | |
164 | if (!ret) | |
165 | kfree_skb(skb); | |
166 | ||
132ff4e5 BZ |
167 | return ret; |
168 | } | |
169 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
170 | ||
171 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) | |
172 | { | |
4271e08d | 173 | struct sk_buff *skb; |
132ff4e5 | 174 | struct btmrvl_cmd *cmd; |
9374253f | 175 | int ret = 0; |
132ff4e5 BZ |
176 | |
177 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
178 | if (skb == NULL) { | |
179 | BT_ERR("No free skb"); | |
9374253f | 180 | return -ENOMEM; |
132ff4e5 BZ |
181 | } |
182 | ||
e0721f99 | 183 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 184 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ)); |
132ff4e5 BZ |
185 | cmd->length = 1; |
186 | cmd->data[0] = subcmd; | |
187 | ||
188 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
189 | ||
4271e08d | 190 | skb->dev = (void *) priv->btmrvl_dev.hcidev; |
132ff4e5 BZ |
191 | skb_queue_head(&priv->adapter->tx_queue, skb); |
192 | ||
193 | priv->btmrvl_dev.sendcmdflag = true; | |
194 | ||
195 | priv->adapter->cmd_complete = false; | |
196 | ||
197 | BT_DBG("Queue module cfg Command"); | |
198 | ||
199 | wake_up_interruptible(&priv->main_thread.wait_q); | |
200 | ||
4271e08d MH |
201 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
202 | priv->adapter->cmd_complete, | |
203 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) { | |
132ff4e5 BZ |
204 | ret = -ETIMEDOUT; |
205 | BT_ERR("module_cfg_cmd(%x): timeout: %d", | |
4271e08d | 206 | subcmd, priv->btmrvl_dev.sendcmdflag); |
132ff4e5 BZ |
207 | } |
208 | ||
209 | BT_DBG("module cfg Command done"); | |
210 | ||
132ff4e5 BZ |
211 | return ret; |
212 | } | |
213 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
214 | ||
2a8ff611 AK |
215 | int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
216 | { | |
217 | struct sk_buff *skb; | |
218 | struct btmrvl_cmd *cmd; | |
219 | ||
220 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
221 | if (!skb) { | |
222 | BT_ERR("No free skb"); | |
223 | return -ENOMEM; | |
224 | } | |
225 | ||
226 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); | |
227 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, | |
228 | BT_CMD_HOST_SLEEP_CONFIG)); | |
229 | cmd->length = 2; | |
230 | cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; | |
231 | cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
232 | ||
233 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
234 | ||
235 | skb->dev = (void *) priv->btmrvl_dev.hcidev; | |
236 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
237 | ||
238 | BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", cmd->data[0], | |
239 | cmd->data[1]); | |
240 | ||
241 | return 0; | |
242 | } | |
243 | EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); | |
244 | ||
32fd6398 AK |
245 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
246 | { | |
247 | struct sk_buff *skb; | |
248 | struct btmrvl_cmd *cmd; | |
249 | ||
250 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
251 | if (skb == NULL) { | |
252 | BT_ERR("No free skb"); | |
253 | return -ENOMEM; | |
254 | } | |
255 | ||
256 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); | |
257 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, | |
258 | BT_CMD_AUTO_SLEEP_MODE)); | |
259 | cmd->length = 1; | |
260 | ||
261 | if (priv->btmrvl_dev.psmode) | |
262 | cmd->data[0] = BT_PS_ENABLE; | |
263 | else | |
264 | cmd->data[0] = BT_PS_DISABLE; | |
265 | ||
266 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
267 | ||
268 | skb->dev = (void *) priv->btmrvl_dev.hcidev; | |
269 | skb_queue_head(&priv->adapter->tx_queue, skb); | |
270 | ||
271 | BT_DBG("Queue PSMODE Command:%d", cmd->data[0]); | |
272 | ||
273 | return 0; | |
274 | } | |
275 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
276 | ||
ba54a16f | 277 | int btmrvl_enable_hs(struct btmrvl_private *priv) |
132ff4e5 | 278 | { |
4271e08d | 279 | struct sk_buff *skb; |
132ff4e5 | 280 | struct btmrvl_cmd *cmd; |
9374253f | 281 | int ret = 0; |
132ff4e5 BZ |
282 | |
283 | skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC); | |
284 | if (skb == NULL) { | |
285 | BT_ERR("No free skb"); | |
9374253f | 286 | return -ENOMEM; |
132ff4e5 BZ |
287 | } |
288 | ||
e0721f99 | 289 | cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd)); |
91d69730 | 290 | cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE)); |
132ff4e5 BZ |
291 | cmd->length = 0; |
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 hs enable Command"); | |
299 | ||
300 | wake_up_interruptible(&priv->main_thread.wait_q); | |
301 | ||
4271e08d | 302 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
132ff4e5 BZ |
303 | priv->adapter->hs_state, |
304 | msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) { | |
305 | ret = -ETIMEDOUT; | |
4271e08d MH |
306 | BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state, |
307 | priv->adapter->ps_state, | |
308 | priv->adapter->wakeup_tries); | |
132ff4e5 BZ |
309 | } |
310 | ||
132ff4e5 BZ |
311 | return ret; |
312 | } | |
ba54a16f | 313 | EXPORT_SYMBOL_GPL(btmrvl_enable_hs); |
132ff4e5 BZ |
314 | |
315 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
316 | { | |
9374253f | 317 | int ret = 0; |
132ff4e5 BZ |
318 | |
319 | if (priv->btmrvl_dev.hscfgcmd) { | |
320 | priv->btmrvl_dev.hscfgcmd = 0; | |
2a8ff611 | 321 | btmrvl_send_hscfg_cmd(priv); |
132ff4e5 BZ |
322 | } |
323 | ||
324 | if (priv->btmrvl_dev.pscmd) { | |
325 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 326 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
327 | } |
328 | ||
329 | if (priv->btmrvl_dev.hscmd) { | |
330 | priv->btmrvl_dev.hscmd = 0; | |
331 | ||
332 | if (priv->btmrvl_dev.hsmode) { | |
333 | ret = btmrvl_enable_hs(priv); | |
334 | } else { | |
335 | ret = priv->hw_wakeup_firmware(priv); | |
336 | priv->adapter->hs_state = HS_DEACTIVATED; | |
337 | } | |
338 | } | |
339 | ||
132ff4e5 BZ |
340 | return ret; |
341 | } | |
342 | ||
343 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
344 | { | |
9374253f | 345 | int ret = 0; |
132ff4e5 | 346 | |
9374253f | 347 | if (!skb || !skb->data) |
132ff4e5 | 348 | return -EINVAL; |
132ff4e5 BZ |
349 | |
350 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
351 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 352 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
353 | return -EINVAL; |
354 | } | |
355 | ||
356 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
357 | struct sk_buff *tmp = skb; | |
358 | ||
359 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
360 | if (!skb) { | |
361 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
362 | BTM_HEADER_LEN); | |
363 | skb = tmp; | |
132ff4e5 BZ |
364 | return -EINVAL; |
365 | } | |
366 | ||
367 | kfree_skb(tmp); | |
368 | } | |
369 | ||
370 | skb_push(skb, BTM_HEADER_LEN); | |
371 | ||
372 | /* header type: byte[3] | |
373 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
374 | * header length: byte[2][1][0] | |
375 | */ | |
376 | ||
377 | skb->data[0] = (skb->len & 0x0000ff); | |
378 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
379 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
380 | skb->data[3] = bt_cb(skb)->pkt_type; | |
381 | ||
382 | if (priv->hw_host_to_card) | |
383 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
384 | ||
132ff4e5 BZ |
385 | return ret; |
386 | } | |
387 | ||
388 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
389 | { | |
132ff4e5 BZ |
390 | skb_queue_head_init(&priv->adapter->tx_queue); |
391 | ||
392 | priv->adapter->ps_state = PS_AWAKE; | |
393 | ||
394 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
132ff4e5 BZ |
395 | } |
396 | ||
397 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
398 | { | |
132ff4e5 BZ |
399 | skb_queue_purge(&priv->adapter->tx_queue); |
400 | ||
401 | kfree(priv->adapter); | |
402 | ||
403 | priv->adapter = NULL; | |
132ff4e5 BZ |
404 | } |
405 | ||
4271e08d MH |
406 | static int btmrvl_ioctl(struct hci_dev *hdev, |
407 | unsigned int cmd, unsigned long arg) | |
132ff4e5 | 408 | { |
132ff4e5 BZ |
409 | return -ENOIOCTLCMD; |
410 | } | |
411 | ||
132ff4e5 BZ |
412 | static int btmrvl_send_frame(struct sk_buff *skb) |
413 | { | |
4271e08d | 414 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
132ff4e5 BZ |
415 | struct btmrvl_private *priv = NULL; |
416 | ||
9374253f | 417 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 | 418 | |
155961e8 | 419 | if (!hdev) { |
132ff4e5 | 420 | BT_ERR("Frame for unknown HCI device"); |
132ff4e5 BZ |
421 | return -ENODEV; |
422 | } | |
423 | ||
155961e8 DH |
424 | priv = hci_get_drvdata(hdev); |
425 | ||
132ff4e5 BZ |
426 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
427 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
428 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 429 | skb->data, skb->len); |
132ff4e5 BZ |
430 | return -EBUSY; |
431 | } | |
432 | ||
433 | switch (bt_cb(skb)->pkt_type) { | |
434 | case HCI_COMMAND_PKT: | |
435 | hdev->stat.cmd_tx++; | |
436 | break; | |
437 | ||
438 | case HCI_ACLDATA_PKT: | |
439 | hdev->stat.acl_tx++; | |
440 | break; | |
441 | ||
442 | case HCI_SCODATA_PKT: | |
443 | hdev->stat.sco_tx++; | |
444 | break; | |
445 | } | |
446 | ||
447 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
448 | ||
449 | wake_up_interruptible(&priv->main_thread.wait_q); | |
450 | ||
132ff4e5 BZ |
451 | return 0; |
452 | } | |
453 | ||
454 | static int btmrvl_flush(struct hci_dev *hdev) | |
455 | { | |
155961e8 | 456 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 457 | |
132ff4e5 BZ |
458 | skb_queue_purge(&priv->adapter->tx_queue); |
459 | ||
132ff4e5 BZ |
460 | return 0; |
461 | } | |
462 | ||
463 | static int btmrvl_close(struct hci_dev *hdev) | |
464 | { | |
155961e8 | 465 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 466 | |
9374253f | 467 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 468 | return 0; |
132ff4e5 BZ |
469 | |
470 | skb_queue_purge(&priv->adapter->tx_queue); | |
471 | ||
132ff4e5 BZ |
472 | return 0; |
473 | } | |
474 | ||
475 | static int btmrvl_open(struct hci_dev *hdev) | |
476 | { | |
132ff4e5 BZ |
477 | set_bit(HCI_RUNNING, &hdev->flags); |
478 | ||
132ff4e5 BZ |
479 | return 0; |
480 | } | |
481 | ||
482 | /* | |
483 | * This function handles the event generated by firmware, rx data | |
484 | * received from firmware, and tx data sent from kernel. | |
485 | */ | |
486 | static int btmrvl_service_main_thread(void *data) | |
487 | { | |
488 | struct btmrvl_thread *thread = data; | |
489 | struct btmrvl_private *priv = thread->priv; | |
490 | struct btmrvl_adapter *adapter = priv->adapter; | |
491 | wait_queue_t wait; | |
492 | struct sk_buff *skb; | |
493 | ulong flags; | |
494 | ||
132ff4e5 BZ |
495 | init_waitqueue_entry(&wait, current); |
496 | ||
132ff4e5 BZ |
497 | for (;;) { |
498 | add_wait_queue(&thread->wait_q, &wait); | |
499 | ||
500 | set_current_state(TASK_INTERRUPTIBLE); | |
501 | ||
502 | if (adapter->wakeup_tries || | |
4271e08d MH |
503 | ((!adapter->int_count) && |
504 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
505 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
506 | BT_DBG("main_thread is sleeping..."); |
507 | schedule(); | |
508 | } | |
509 | ||
510 | set_current_state(TASK_RUNNING); | |
511 | ||
512 | remove_wait_queue(&thread->wait_q, &wait); | |
513 | ||
514 | BT_DBG("main_thread woke up"); | |
515 | ||
516 | if (kthread_should_stop()) { | |
517 | BT_DBG("main_thread: break from main thread"); | |
518 | break; | |
519 | } | |
520 | ||
521 | spin_lock_irqsave(&priv->driver_lock, flags); | |
522 | if (adapter->int_count) { | |
523 | adapter->int_count = 0; | |
d1d10d78 AK |
524 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
525 | priv->hw_process_int_status(priv); | |
4271e08d MH |
526 | } else if (adapter->ps_state == PS_SLEEP && |
527 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
528 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
529 | adapter->wakeup_tries++; | |
530 | priv->hw_wakeup_firmware(priv); | |
531 | continue; | |
d1d10d78 AK |
532 | } else { |
533 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 534 | } |
132ff4e5 BZ |
535 | |
536 | if (adapter->ps_state == PS_SLEEP) | |
537 | continue; | |
538 | ||
539 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
540 | continue; | |
541 | ||
542 | skb = skb_dequeue(&adapter->tx_queue); | |
543 | if (skb) { | |
544 | if (btmrvl_tx_pkt(priv, skb)) | |
545 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
546 | else | |
4271e08d | 547 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
548 | |
549 | kfree_skb(skb); | |
550 | } | |
551 | } | |
552 | ||
132ff4e5 BZ |
553 | return 0; |
554 | } | |
555 | ||
64061607 | 556 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
557 | { |
558 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
559 | int ret; |
560 | ||
132ff4e5 BZ |
561 | hdev = hci_alloc_dev(); |
562 | if (!hdev) { | |
563 | BT_ERR("Can not allocate HCI device"); | |
564 | goto err_hdev; | |
565 | } | |
566 | ||
132ff4e5 | 567 | priv->btmrvl_dev.hcidev = hdev; |
155961e8 | 568 | hci_set_drvdata(hdev, priv); |
132ff4e5 | 569 | |
c13854ce | 570 | hdev->bus = HCI_SDIO; |
132ff4e5 BZ |
571 | hdev->open = btmrvl_open; |
572 | hdev->close = btmrvl_close; | |
573 | hdev->flush = btmrvl_flush; | |
574 | hdev->send = btmrvl_send_frame; | |
132ff4e5 | 575 | hdev->ioctl = btmrvl_ioctl; |
132ff4e5 | 576 | |
64061607 BZ |
577 | btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); |
578 | ||
f120c6b6 BZ |
579 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
580 | ||
132ff4e5 BZ |
581 | ret = hci_register_dev(hdev); |
582 | if (ret < 0) { | |
583 | BT_ERR("Can not register HCI device"); | |
584 | goto err_hci_register_dev; | |
585 | } | |
586 | ||
fb784f05 BZ |
587 | #ifdef CONFIG_DEBUG_FS |
588 | btmrvl_debugfs_init(hdev); | |
589 | #endif | |
590 | ||
64061607 | 591 | return 0; |
132ff4e5 BZ |
592 | |
593 | err_hci_register_dev: | |
132ff4e5 BZ |
594 | hci_free_dev(hdev); |
595 | ||
596 | err_hdev: | |
64061607 BZ |
597 | /* Stop the thread servicing the interrupts */ |
598 | kthread_stop(priv->main_thread.task); | |
599 | ||
132ff4e5 | 600 | btmrvl_free_adapter(priv); |
64061607 BZ |
601 | kfree(priv); |
602 | ||
603 | return -ENOMEM; | |
604 | } | |
605 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
606 | ||
607 | struct btmrvl_private *btmrvl_add_card(void *card) | |
608 | { | |
609 | struct btmrvl_private *priv; | |
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 | BT_DBG("Starting kthread..."); | |
626 | priv->main_thread.priv = priv; | |
627 | spin_lock_init(&priv->driver_lock); | |
628 | ||
629 | init_waitqueue_head(&priv->main_thread.wait_q); | |
630 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
631 | &priv->main_thread, "btmrvl_main_service"); | |
632 | ||
633 | priv->btmrvl_dev.card = card; | |
634 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
635 | ||
636 | return priv; | |
132ff4e5 BZ |
637 | |
638 | err_adapter: | |
639 | kfree(priv); | |
640 | ||
641 | err_priv: | |
132ff4e5 BZ |
642 | return NULL; |
643 | } | |
644 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
645 | ||
646 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
647 | { | |
648 | struct hci_dev *hdev; | |
649 | ||
132ff4e5 BZ |
650 | hdev = priv->btmrvl_dev.hcidev; |
651 | ||
652 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
653 | ||
654 | kthread_stop(priv->main_thread.task); | |
655 | ||
fb784f05 BZ |
656 | #ifdef CONFIG_DEBUG_FS |
657 | btmrvl_debugfs_remove(hdev); | |
658 | #endif | |
659 | ||
132ff4e5 BZ |
660 | hci_unregister_dev(hdev); |
661 | ||
662 | hci_free_dev(hdev); | |
663 | ||
664 | priv->btmrvl_dev.hcidev = NULL; | |
665 | ||
666 | btmrvl_free_adapter(priv); | |
667 | ||
668 | kfree(priv); | |
669 | ||
132ff4e5 BZ |
670 | return 0; |
671 | } | |
672 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
673 | ||
674 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 675 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
676 | MODULE_VERSION(VERSION); |
677 | MODULE_LICENSE("GPL v2"); |