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 | ||
a59b968e | 21 | #include <linux/module.h> |
433a9389 | 22 | #include <linux/of.h> |
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 | 52 | struct hci_ev_cmd_complete *ec; |
3e4543ab | 53 | u16 opcode; |
2c2453f3 | 54 | |
4271e08d | 55 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 | 56 | opcode = __le16_to_cpu(ec->opcode); |
ea1e76a3 | 57 | |
c037874c | 58 | if (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); | |
ea1e76a3 | 62 | |
d986b4a6 AK |
63 | if (hci_opcode_ogf(opcode) == 0x3F) { |
64 | BT_DBG("vendor event skipped: opcode=%#4.4x", | |
65 | opcode); | |
66 | kfree_skb(skb); | |
67 | return false; | |
68 | } | |
ea1e76a3 | 69 | } |
132ff4e5 | 70 | } |
ea1e76a3 AE |
71 | |
72 | return true; | |
132ff4e5 BZ |
73 | } |
74 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
75 | ||
76 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
77 | { | |
78 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 79 | struct btmrvl_event *event; |
31f085fe | 80 | int ret = 0; |
132ff4e5 | 81 | |
132ff4e5 BZ |
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]) { | |
3e4543ab | 90 | case BT_EVENT_AUTO_SLEEP_MODE: |
132ff4e5 BZ |
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 | ||
3e4543ab | 103 | case BT_EVENT_HOST_SLEEP_CONFIG: |
132ff4e5 BZ |
104 | if (!event->data[3]) |
105 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 106 | event->data[2]); |
132ff4e5 BZ |
107 | else |
108 | BT_DBG("HSCFG command failed"); | |
109 | break; | |
110 | ||
3e4543ab | 111 | case BT_EVENT_HOST_SLEEP_ENABLE: |
132ff4e5 BZ |
112 | if (!event->data[1]) { |
113 | adapter->hs_state = HS_ACTIVATED; | |
114 | if (adapter->psmode) | |
115 | adapter->ps_state = PS_SLEEP; | |
132ff4e5 BZ |
116 | BT_DBG("HS ACTIVATED!"); |
117 | } else { | |
118 | BT_DBG("HS Enable failed"); | |
119 | } | |
120 | break; | |
121 | ||
3e4543ab | 122 | case BT_EVENT_MODULE_CFG_REQ: |
4271e08d MH |
123 | if (priv->btmrvl_dev.sendcmdflag && |
124 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
125 | BT_DBG("EVENT:%s", |
126 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
127 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
128 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 129 | |
8f1e1742 DV |
130 | if (event->length > 3 && event->data[3]) |
131 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
132 | else |
133 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
134 | ||
135 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
136 | } else if (priv->btmrvl_dev.sendcmdflag && |
137 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
138 | BT_DBG("EVENT:%s", (event->data[2]) ? |
139 | "Shutdown failed" : "Shutdown succeed"); | |
140 | } else { | |
141 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
142 | ret = -EINVAL; | |
143 | } | |
144 | break; | |
145 | ||
146 | case BT_EVENT_POWER_STATE: | |
147 | if (event->data[1] == BT_PS_SLEEP) | |
148 | adapter->ps_state = PS_SLEEP; | |
149 | BT_DBG("EVENT:%s", | |
150 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
151 | break; | |
152 | ||
153 | default: | |
154 | BT_DBG("Unknown Event=%d", event->data[0]); | |
155 | ret = -EINVAL; | |
156 | break; | |
157 | } | |
158 | ||
159 | exit: | |
160 | if (!ret) | |
161 | kfree_skb(skb); | |
162 | ||
132ff4e5 BZ |
163 | return ret; |
164 | } | |
165 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
166 | ||
3e4543ab | 167 | static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode, |
c037874c | 168 | const void *param, u8 len) |
132ff4e5 | 169 | { |
4271e08d | 170 | struct sk_buff *skb; |
7d5b400c | 171 | struct hci_command_hdr *hdr; |
132ff4e5 | 172 | |
7d5b400c | 173 | skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC); |
132ff4e5 BZ |
174 | if (skb == NULL) { |
175 | BT_ERR("No free skb"); | |
9374253f | 176 | return -ENOMEM; |
132ff4e5 BZ |
177 | } |
178 | ||
7d5b400c | 179 | hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE); |
3e4543ab | 180 | hdr->opcode = cpu_to_le16(opcode); |
7d5b400c | 181 | hdr->plen = len; |
c037874c AK |
182 | |
183 | if (len) | |
7d5b400c | 184 | memcpy(skb_put(skb, len), param, len); |
132ff4e5 BZ |
185 | |
186 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
187 | ||
132ff4e5 BZ |
188 | skb_queue_head(&priv->adapter->tx_queue, skb); |
189 | ||
190 | priv->btmrvl_dev.sendcmdflag = true; | |
191 | ||
192 | priv->adapter->cmd_complete = false; | |
193 | ||
132ff4e5 BZ |
194 | wake_up_interruptible(&priv->main_thread.wait_q); |
195 | ||
4271e08d MH |
196 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
197 | priv->adapter->cmd_complete, | |
c037874c AK |
198 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) |
199 | return -ETIMEDOUT; | |
200 | ||
201 | return 0; | |
202 | } | |
132ff4e5 | 203 | |
c037874c AK |
204 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) |
205 | { | |
206 | int ret; | |
207 | ||
208 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); | |
209 | if (ret) | |
210 | BT_ERR("module_cfg_cmd(%x) failed\n", subcmd); | |
132ff4e5 | 211 | |
132ff4e5 BZ |
212 | return ret; |
213 | } | |
214 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
215 | ||
2a8ff611 AK |
216 | int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
217 | { | |
c037874c AK |
218 | int ret; |
219 | u8 param[2]; | |
2a8ff611 | 220 | |
c037874c AK |
221 | param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
222 | param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
2a8ff611 | 223 | |
c037874c AK |
224 | BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", |
225 | param[0], param[1]); | |
2a8ff611 | 226 | |
c037874c AK |
227 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); |
228 | if (ret) | |
229 | BT_ERR("HSCFG command failed\n"); | |
2a8ff611 | 230 | |
c037874c | 231 | return ret; |
2a8ff611 AK |
232 | } |
233 | EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); | |
234 | ||
32fd6398 AK |
235 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
236 | { | |
c037874c AK |
237 | int ret; |
238 | u8 param; | |
32fd6398 AK |
239 | |
240 | if (priv->btmrvl_dev.psmode) | |
c037874c | 241 | param = BT_PS_ENABLE; |
32fd6398 | 242 | else |
c037874c | 243 | param = BT_PS_DISABLE; |
32fd6398 | 244 | |
c037874c AK |
245 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); |
246 | if (ret) | |
247 | BT_ERR("PSMODE command failed\n"); | |
32fd6398 AK |
248 | |
249 | return 0; | |
250 | } | |
251 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
252 | ||
ba54a16f | 253 | int btmrvl_enable_hs(struct btmrvl_private *priv) |
132ff4e5 | 254 | { |
c037874c | 255 | int ret; |
132ff4e5 | 256 | |
c037874c AK |
257 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); |
258 | if (ret) | |
259 | BT_ERR("Host sleep enable command failed\n"); | |
132ff4e5 | 260 | |
132ff4e5 BZ |
261 | return ret; |
262 | } | |
ba54a16f | 263 | EXPORT_SYMBOL_GPL(btmrvl_enable_hs); |
132ff4e5 BZ |
264 | |
265 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
266 | { | |
9374253f | 267 | int ret = 0; |
132ff4e5 BZ |
268 | |
269 | if (priv->btmrvl_dev.hscfgcmd) { | |
270 | priv->btmrvl_dev.hscfgcmd = 0; | |
2a8ff611 | 271 | btmrvl_send_hscfg_cmd(priv); |
132ff4e5 BZ |
272 | } |
273 | ||
274 | if (priv->btmrvl_dev.pscmd) { | |
275 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 276 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
277 | } |
278 | ||
279 | if (priv->btmrvl_dev.hscmd) { | |
280 | priv->btmrvl_dev.hscmd = 0; | |
281 | ||
282 | if (priv->btmrvl_dev.hsmode) { | |
283 | ret = btmrvl_enable_hs(priv); | |
284 | } else { | |
285 | ret = priv->hw_wakeup_firmware(priv); | |
286 | priv->adapter->hs_state = HS_DEACTIVATED; | |
287 | } | |
288 | } | |
289 | ||
132ff4e5 BZ |
290 | return ret; |
291 | } | |
292 | ||
293 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
294 | { | |
9374253f | 295 | int ret = 0; |
132ff4e5 | 296 | |
9374253f | 297 | if (!skb || !skb->data) |
132ff4e5 | 298 | return -EINVAL; |
132ff4e5 BZ |
299 | |
300 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
301 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 302 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
303 | return -EINVAL; |
304 | } | |
305 | ||
306 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
307 | struct sk_buff *tmp = skb; | |
308 | ||
309 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
310 | if (!skb) { | |
311 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
312 | BTM_HEADER_LEN); | |
313 | skb = tmp; | |
132ff4e5 BZ |
314 | return -EINVAL; |
315 | } | |
316 | ||
317 | kfree_skb(tmp); | |
318 | } | |
319 | ||
320 | skb_push(skb, BTM_HEADER_LEN); | |
321 | ||
322 | /* header type: byte[3] | |
323 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
324 | * header length: byte[2][1][0] | |
325 | */ | |
326 | ||
327 | skb->data[0] = (skb->len & 0x0000ff); | |
328 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
329 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
330 | skb->data[3] = bt_cb(skb)->pkt_type; | |
331 | ||
332 | if (priv->hw_host_to_card) | |
333 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
334 | ||
132ff4e5 BZ |
335 | return ret; |
336 | } | |
337 | ||
338 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
339 | { | |
132ff4e5 BZ |
340 | skb_queue_head_init(&priv->adapter->tx_queue); |
341 | ||
342 | priv->adapter->ps_state = PS_AWAKE; | |
343 | ||
344 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
132ff4e5 BZ |
345 | } |
346 | ||
347 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
348 | { | |
132ff4e5 BZ |
349 | skb_queue_purge(&priv->adapter->tx_queue); |
350 | ||
351 | kfree(priv->adapter); | |
352 | ||
353 | priv->adapter = NULL; | |
132ff4e5 BZ |
354 | } |
355 | ||
7bd8f09f | 356 | static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
132ff4e5 | 357 | { |
7648d28f | 358 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 359 | |
9374253f | 360 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 | 361 | |
132ff4e5 BZ |
362 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
363 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
364 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 365 | skb->data, skb->len); |
132ff4e5 BZ |
366 | return -EBUSY; |
367 | } | |
368 | ||
369 | switch (bt_cb(skb)->pkt_type) { | |
370 | case HCI_COMMAND_PKT: | |
371 | hdev->stat.cmd_tx++; | |
372 | break; | |
373 | ||
374 | case HCI_ACLDATA_PKT: | |
375 | hdev->stat.acl_tx++; | |
376 | break; | |
377 | ||
378 | case HCI_SCODATA_PKT: | |
379 | hdev->stat.sco_tx++; | |
380 | break; | |
381 | } | |
382 | ||
383 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
384 | ||
385 | wake_up_interruptible(&priv->main_thread.wait_q); | |
386 | ||
132ff4e5 BZ |
387 | return 0; |
388 | } | |
389 | ||
390 | static int btmrvl_flush(struct hci_dev *hdev) | |
391 | { | |
155961e8 | 392 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 393 | |
132ff4e5 BZ |
394 | skb_queue_purge(&priv->adapter->tx_queue); |
395 | ||
132ff4e5 BZ |
396 | return 0; |
397 | } | |
398 | ||
399 | static int btmrvl_close(struct hci_dev *hdev) | |
400 | { | |
155961e8 | 401 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 402 | |
9374253f | 403 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 404 | return 0; |
132ff4e5 BZ |
405 | |
406 | skb_queue_purge(&priv->adapter->tx_queue); | |
407 | ||
132ff4e5 BZ |
408 | return 0; |
409 | } | |
410 | ||
411 | static int btmrvl_open(struct hci_dev *hdev) | |
412 | { | |
132ff4e5 BZ |
413 | set_bit(HCI_RUNNING, &hdev->flags); |
414 | ||
132ff4e5 BZ |
415 | return 0; |
416 | } | |
417 | ||
433a9389 | 418 | static int btmrvl_download_cal_data(struct btmrvl_private *priv, |
8a4934f1 | 419 | u8 *data, int len) |
2cc86890 | 420 | { |
8a4934f1 | 421 | int ret; |
2cc86890 AK |
422 | |
423 | data[0] = 0x00; | |
424 | data[1] = 0x00; | |
425 | data[2] = 0x00; | |
8a4934f1 | 426 | data[3] = len; |
2cc86890 AK |
427 | |
428 | print_hex_dump_bytes("Calibration data: ", | |
8a4934f1 | 429 | DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); |
2cc86890 AK |
430 | |
431 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, | |
8a4934f1 | 432 | BT_CAL_HDR_LEN + len); |
2cc86890 AK |
433 | if (ret) |
434 | BT_ERR("Failed to download caibration data\n"); | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
433a9389 | 439 | static int btmrvl_cal_data_dt(struct btmrvl_private *priv) |
2cc86890 | 440 | { |
433a9389 | 441 | struct device_node *dt_node; |
8a4934f1 | 442 | u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; |
433a9389 BZ |
443 | const char name[] = "btmrvl_caldata"; |
444 | const char property[] = "btmrvl,caldata"; | |
2cc86890 AK |
445 | int ret; |
446 | ||
433a9389 BZ |
447 | dt_node = of_find_node_by_name(NULL, name); |
448 | if (!dt_node) | |
449 | return -ENODEV; | |
450 | ||
8a4934f1 BZ |
451 | ret = of_property_read_u8_array(dt_node, property, |
452 | cal_data + BT_CAL_HDR_LEN, | |
453 | BT_CAL_DATA_SIZE); | |
2cc86890 AK |
454 | if (ret) |
455 | return ret; | |
456 | ||
433a9389 | 457 | BT_DBG("Use cal data from device tree"); |
8a4934f1 | 458 | ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE); |
2cc86890 | 459 | if (ret) { |
433a9389 | 460 | BT_ERR("Fail to download calibrate data"); |
2cc86890 AK |
461 | return ret; |
462 | } | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
4b245722 AK |
467 | static int btmrvl_setup(struct hci_dev *hdev) |
468 | { | |
469 | struct btmrvl_private *priv = hci_get_drvdata(hdev); | |
470 | ||
471 | btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); | |
472 | ||
433a9389 | 473 | btmrvl_cal_data_dt(priv); |
2cc86890 | 474 | |
4b245722 AK |
475 | priv->btmrvl_dev.psmode = 1; |
476 | btmrvl_enable_ps(priv); | |
477 | ||
478 | priv->btmrvl_dev.gpio_gap = 0xffff; | |
479 | btmrvl_send_hscfg_cmd(priv); | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
132ff4e5 BZ |
484 | /* |
485 | * This function handles the event generated by firmware, rx data | |
486 | * received from firmware, and tx data sent from kernel. | |
487 | */ | |
488 | static int btmrvl_service_main_thread(void *data) | |
489 | { | |
490 | struct btmrvl_thread *thread = data; | |
491 | struct btmrvl_private *priv = thread->priv; | |
492 | struct btmrvl_adapter *adapter = priv->adapter; | |
493 | wait_queue_t wait; | |
494 | struct sk_buff *skb; | |
495 | ulong flags; | |
496 | ||
132ff4e5 BZ |
497 | init_waitqueue_entry(&wait, current); |
498 | ||
132ff4e5 BZ |
499 | for (;;) { |
500 | add_wait_queue(&thread->wait_q, &wait); | |
501 | ||
502 | set_current_state(TASK_INTERRUPTIBLE); | |
ea05fea9 DD |
503 | if (kthread_should_stop()) { |
504 | BT_DBG("main_thread: break from main thread"); | |
505 | break; | |
506 | } | |
132ff4e5 BZ |
507 | |
508 | if (adapter->wakeup_tries || | |
4271e08d MH |
509 | ((!adapter->int_count) && |
510 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
511 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
512 | BT_DBG("main_thread is sleeping..."); |
513 | schedule(); | |
514 | } | |
515 | ||
516 | set_current_state(TASK_RUNNING); | |
517 | ||
518 | remove_wait_queue(&thread->wait_q, &wait); | |
519 | ||
520 | BT_DBG("main_thread woke up"); | |
521 | ||
132ff4e5 BZ |
522 | spin_lock_irqsave(&priv->driver_lock, flags); |
523 | if (adapter->int_count) { | |
524 | adapter->int_count = 0; | |
d1d10d78 AK |
525 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
526 | priv->hw_process_int_status(priv); | |
4271e08d MH |
527 | } else if (adapter->ps_state == PS_SLEEP && |
528 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
529 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
530 | adapter->wakeup_tries++; | |
531 | priv->hw_wakeup_firmware(priv); | |
532 | continue; | |
d1d10d78 AK |
533 | } else { |
534 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 535 | } |
132ff4e5 BZ |
536 | |
537 | if (adapter->ps_state == PS_SLEEP) | |
538 | continue; | |
539 | ||
540 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
541 | continue; | |
542 | ||
543 | skb = skb_dequeue(&adapter->tx_queue); | |
544 | if (skb) { | |
545 | if (btmrvl_tx_pkt(priv, skb)) | |
546 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
547 | else | |
4271e08d | 548 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
549 | |
550 | kfree_skb(skb); | |
551 | } | |
552 | } | |
553 | ||
132ff4e5 BZ |
554 | return 0; |
555 | } | |
556 | ||
64061607 | 557 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
558 | { |
559 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
560 | int ret; |
561 | ||
132ff4e5 BZ |
562 | hdev = hci_alloc_dev(); |
563 | if (!hdev) { | |
564 | BT_ERR("Can not allocate HCI device"); | |
565 | goto err_hdev; | |
566 | } | |
567 | ||
132ff4e5 | 568 | priv->btmrvl_dev.hcidev = hdev; |
155961e8 | 569 | hci_set_drvdata(hdev, priv); |
132ff4e5 | 570 | |
e93ac9c0 MH |
571 | hdev->bus = HCI_SDIO; |
572 | hdev->open = btmrvl_open; | |
132ff4e5 BZ |
573 | hdev->close = btmrvl_close; |
574 | hdev->flush = btmrvl_flush; | |
e93ac9c0 | 575 | hdev->send = btmrvl_send_frame; |
4b245722 | 576 | hdev->setup = btmrvl_setup; |
64061607 | 577 | |
f120c6b6 BZ |
578 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
579 | ||
132ff4e5 BZ |
580 | ret = hci_register_dev(hdev); |
581 | if (ret < 0) { | |
582 | BT_ERR("Can not register HCI device"); | |
583 | goto err_hci_register_dev; | |
584 | } | |
585 | ||
fb784f05 BZ |
586 | #ifdef CONFIG_DEBUG_FS |
587 | btmrvl_debugfs_init(hdev); | |
588 | #endif | |
589 | ||
64061607 | 590 | return 0; |
132ff4e5 BZ |
591 | |
592 | err_hci_register_dev: | |
132ff4e5 BZ |
593 | hci_free_dev(hdev); |
594 | ||
595 | err_hdev: | |
64061607 BZ |
596 | /* Stop the thread servicing the interrupts */ |
597 | kthread_stop(priv->main_thread.task); | |
598 | ||
132ff4e5 | 599 | btmrvl_free_adapter(priv); |
64061607 BZ |
600 | kfree(priv); |
601 | ||
602 | return -ENOMEM; | |
603 | } | |
604 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
605 | ||
606 | struct btmrvl_private *btmrvl_add_card(void *card) | |
607 | { | |
608 | struct btmrvl_private *priv; | |
609 | ||
610 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
611 | if (!priv) { | |
612 | BT_ERR("Can not allocate priv"); | |
613 | goto err_priv; | |
614 | } | |
615 | ||
616 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
617 | if (!priv->adapter) { | |
618 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
619 | goto err_adapter; | |
620 | } | |
621 | ||
622 | btmrvl_init_adapter(priv); | |
623 | ||
624 | BT_DBG("Starting kthread..."); | |
625 | priv->main_thread.priv = priv; | |
626 | spin_lock_init(&priv->driver_lock); | |
627 | ||
628 | init_waitqueue_head(&priv->main_thread.wait_q); | |
629 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
630 | &priv->main_thread, "btmrvl_main_service"); | |
631 | ||
632 | priv->btmrvl_dev.card = card; | |
633 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
634 | ||
635 | return priv; | |
132ff4e5 BZ |
636 | |
637 | err_adapter: | |
638 | kfree(priv); | |
639 | ||
640 | err_priv: | |
132ff4e5 BZ |
641 | return NULL; |
642 | } | |
643 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
644 | ||
645 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
646 | { | |
647 | struct hci_dev *hdev; | |
648 | ||
132ff4e5 BZ |
649 | hdev = priv->btmrvl_dev.hcidev; |
650 | ||
651 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
652 | ||
653 | kthread_stop(priv->main_thread.task); | |
654 | ||
fb784f05 BZ |
655 | #ifdef CONFIG_DEBUG_FS |
656 | btmrvl_debugfs_remove(hdev); | |
657 | #endif | |
658 | ||
132ff4e5 BZ |
659 | hci_unregister_dev(hdev); |
660 | ||
661 | hci_free_dev(hdev); | |
662 | ||
663 | priv->btmrvl_dev.hcidev = NULL; | |
664 | ||
665 | btmrvl_free_adapter(priv); | |
666 | ||
667 | kfree(priv); | |
668 | ||
132ff4e5 BZ |
669 | return 0; |
670 | } | |
671 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
672 | ||
673 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 674 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
675 | MODULE_VERSION(VERSION); |
676 | MODULE_LICENSE("GPL v2"); |