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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 | ||
c037874c | 60 | if (priv->btmrvl_dev.sendcmdflag) { |
132ff4e5 BZ |
61 | priv->btmrvl_dev.sendcmdflag = false; |
62 | priv->adapter->cmd_complete = true; | |
63 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
64 | } | |
ea1e76a3 AE |
65 | |
66 | if (ogf == OGF) { | |
2c2453f3 AE |
67 | BT_DBG("vendor event skipped: ogf 0x%4.4x ocf 0x%4.4x", |
68 | ogf, ocf); | |
ea1e76a3 AE |
69 | kfree_skb(skb); |
70 | return false; | |
71 | } | |
132ff4e5 | 72 | } |
ea1e76a3 AE |
73 | |
74 | return true; | |
132ff4e5 BZ |
75 | } |
76 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
77 | ||
78 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
79 | { | |
80 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 81 | struct btmrvl_event *event; |
31f085fe | 82 | int ret = 0; |
132ff4e5 | 83 | |
132ff4e5 BZ |
84 | event = (struct btmrvl_event *) skb->data; |
85 | if (event->ec != 0xff) { | |
86 | BT_DBG("Not Marvell Event=%x", event->ec); | |
87 | ret = -EINVAL; | |
88 | goto exit; | |
89 | } | |
90 | ||
91 | switch (event->data[0]) { | |
92 | case BT_CMD_AUTO_SLEEP_MODE: | |
93 | if (!event->data[2]) { | |
94 | if (event->data[1] == BT_PS_ENABLE) | |
95 | adapter->psmode = 1; | |
96 | else | |
97 | adapter->psmode = 0; | |
98 | BT_DBG("PS Mode:%s", | |
99 | (adapter->psmode) ? "Enable" : "Disable"); | |
100 | } else { | |
101 | BT_DBG("PS Mode command failed"); | |
102 | } | |
103 | break; | |
104 | ||
105 | case BT_CMD_HOST_SLEEP_CONFIG: | |
106 | if (!event->data[3]) | |
107 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 108 | event->data[2]); |
132ff4e5 BZ |
109 | else |
110 | BT_DBG("HSCFG command failed"); | |
111 | break; | |
112 | ||
113 | case BT_CMD_HOST_SLEEP_ENABLE: | |
114 | if (!event->data[1]) { | |
115 | adapter->hs_state = HS_ACTIVATED; | |
116 | if (adapter->psmode) | |
117 | adapter->ps_state = PS_SLEEP; | |
132ff4e5 BZ |
118 | BT_DBG("HS ACTIVATED!"); |
119 | } else { | |
120 | BT_DBG("HS Enable failed"); | |
121 | } | |
122 | break; | |
123 | ||
124 | case BT_CMD_MODULE_CFG_REQ: | |
4271e08d MH |
125 | if (priv->btmrvl_dev.sendcmdflag && |
126 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
127 | BT_DBG("EVENT:%s", |
128 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
129 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
130 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 131 | |
8f1e1742 DV |
132 | if (event->length > 3 && event->data[3]) |
133 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
134 | else |
135 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
136 | ||
137 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
138 | } else if (priv->btmrvl_dev.sendcmdflag && |
139 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
140 | BT_DBG("EVENT:%s", (event->data[2]) ? |
141 | "Shutdown failed" : "Shutdown succeed"); | |
142 | } else { | |
143 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
144 | ret = -EINVAL; | |
145 | } | |
146 | break; | |
147 | ||
148 | case BT_EVENT_POWER_STATE: | |
149 | if (event->data[1] == BT_PS_SLEEP) | |
150 | adapter->ps_state = PS_SLEEP; | |
151 | BT_DBG("EVENT:%s", | |
152 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
153 | break; | |
154 | ||
155 | default: | |
156 | BT_DBG("Unknown Event=%d", event->data[0]); | |
157 | ret = -EINVAL; | |
158 | break; | |
159 | } | |
160 | ||
161 | exit: | |
162 | if (!ret) | |
163 | kfree_skb(skb); | |
164 | ||
132ff4e5 BZ |
165 | return ret; |
166 | } | |
167 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
168 | ||
c037874c AK |
169 | static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 cmd_no, |
170 | const void *param, u8 len) | |
132ff4e5 | 171 | { |
4271e08d | 172 | struct sk_buff *skb; |
7d5b400c | 173 | struct hci_command_hdr *hdr; |
132ff4e5 | 174 | |
7d5b400c | 175 | skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC); |
132ff4e5 BZ |
176 | if (skb == NULL) { |
177 | BT_ERR("No free skb"); | |
9374253f | 178 | return -ENOMEM; |
132ff4e5 BZ |
179 | } |
180 | ||
7d5b400c AK |
181 | hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE); |
182 | hdr->opcode = cpu_to_le16(hci_opcode_pack(OGF, cmd_no)); | |
183 | hdr->plen = len; | |
c037874c AK |
184 | |
185 | if (len) | |
7d5b400c | 186 | memcpy(skb_put(skb, len), param, len); |
132ff4e5 BZ |
187 | |
188 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
189 | ||
132ff4e5 BZ |
190 | skb_queue_head(&priv->adapter->tx_queue, skb); |
191 | ||
192 | priv->btmrvl_dev.sendcmdflag = true; | |
193 | ||
194 | priv->adapter->cmd_complete = false; | |
195 | ||
132ff4e5 BZ |
196 | wake_up_interruptible(&priv->main_thread.wait_q); |
197 | ||
4271e08d MH |
198 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
199 | priv->adapter->cmd_complete, | |
c037874c AK |
200 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) |
201 | return -ETIMEDOUT; | |
202 | ||
203 | return 0; | |
204 | } | |
132ff4e5 | 205 | |
c037874c AK |
206 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd) |
207 | { | |
208 | int ret; | |
209 | ||
210 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); | |
211 | if (ret) | |
212 | BT_ERR("module_cfg_cmd(%x) failed\n", subcmd); | |
132ff4e5 | 213 | |
132ff4e5 BZ |
214 | return ret; |
215 | } | |
216 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
217 | ||
2a8ff611 AK |
218 | int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
219 | { | |
c037874c AK |
220 | int ret; |
221 | u8 param[2]; | |
2a8ff611 | 222 | |
c037874c AK |
223 | param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
224 | param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
2a8ff611 | 225 | |
c037874c AK |
226 | BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", |
227 | param[0], param[1]); | |
2a8ff611 | 228 | |
c037874c AK |
229 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); |
230 | if (ret) | |
231 | BT_ERR("HSCFG command failed\n"); | |
2a8ff611 | 232 | |
c037874c | 233 | return ret; |
2a8ff611 AK |
234 | } |
235 | EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); | |
236 | ||
32fd6398 AK |
237 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
238 | { | |
c037874c AK |
239 | int ret; |
240 | u8 param; | |
32fd6398 AK |
241 | |
242 | if (priv->btmrvl_dev.psmode) | |
c037874c | 243 | param = BT_PS_ENABLE; |
32fd6398 | 244 | else |
c037874c | 245 | param = BT_PS_DISABLE; |
32fd6398 | 246 | |
c037874c AK |
247 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); |
248 | if (ret) | |
249 | BT_ERR("PSMODE command failed\n"); | |
32fd6398 AK |
250 | |
251 | return 0; | |
252 | } | |
253 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
254 | ||
ba54a16f | 255 | int btmrvl_enable_hs(struct btmrvl_private *priv) |
132ff4e5 | 256 | { |
c037874c | 257 | int ret; |
132ff4e5 | 258 | |
c037874c AK |
259 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); |
260 | if (ret) | |
261 | BT_ERR("Host sleep enable command failed\n"); | |
132ff4e5 | 262 | |
132ff4e5 BZ |
263 | return ret; |
264 | } | |
ba54a16f | 265 | EXPORT_SYMBOL_GPL(btmrvl_enable_hs); |
132ff4e5 BZ |
266 | |
267 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
268 | { | |
9374253f | 269 | int ret = 0; |
132ff4e5 BZ |
270 | |
271 | if (priv->btmrvl_dev.hscfgcmd) { | |
272 | priv->btmrvl_dev.hscfgcmd = 0; | |
2a8ff611 | 273 | btmrvl_send_hscfg_cmd(priv); |
132ff4e5 BZ |
274 | } |
275 | ||
276 | if (priv->btmrvl_dev.pscmd) { | |
277 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 278 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
279 | } |
280 | ||
281 | if (priv->btmrvl_dev.hscmd) { | |
282 | priv->btmrvl_dev.hscmd = 0; | |
283 | ||
284 | if (priv->btmrvl_dev.hsmode) { | |
285 | ret = btmrvl_enable_hs(priv); | |
286 | } else { | |
287 | ret = priv->hw_wakeup_firmware(priv); | |
288 | priv->adapter->hs_state = HS_DEACTIVATED; | |
289 | } | |
290 | } | |
291 | ||
132ff4e5 BZ |
292 | return ret; |
293 | } | |
294 | ||
295 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
296 | { | |
9374253f | 297 | int ret = 0; |
132ff4e5 | 298 | |
9374253f | 299 | if (!skb || !skb->data) |
132ff4e5 | 300 | return -EINVAL; |
132ff4e5 BZ |
301 | |
302 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
303 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 304 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
305 | return -EINVAL; |
306 | } | |
307 | ||
308 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
309 | struct sk_buff *tmp = skb; | |
310 | ||
311 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
312 | if (!skb) { | |
313 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
314 | BTM_HEADER_LEN); | |
315 | skb = tmp; | |
132ff4e5 BZ |
316 | return -EINVAL; |
317 | } | |
318 | ||
319 | kfree_skb(tmp); | |
320 | } | |
321 | ||
322 | skb_push(skb, BTM_HEADER_LEN); | |
323 | ||
324 | /* header type: byte[3] | |
325 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
326 | * header length: byte[2][1][0] | |
327 | */ | |
328 | ||
329 | skb->data[0] = (skb->len & 0x0000ff); | |
330 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
331 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
332 | skb->data[3] = bt_cb(skb)->pkt_type; | |
333 | ||
334 | if (priv->hw_host_to_card) | |
335 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
336 | ||
132ff4e5 BZ |
337 | return ret; |
338 | } | |
339 | ||
340 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
341 | { | |
132ff4e5 BZ |
342 | skb_queue_head_init(&priv->adapter->tx_queue); |
343 | ||
344 | priv->adapter->ps_state = PS_AWAKE; | |
345 | ||
346 | init_waitqueue_head(&priv->adapter->cmd_wait_q); | |
132ff4e5 BZ |
347 | } |
348 | ||
349 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
350 | { | |
132ff4e5 BZ |
351 | skb_queue_purge(&priv->adapter->tx_queue); |
352 | ||
353 | kfree(priv->adapter); | |
354 | ||
355 | priv->adapter = NULL; | |
132ff4e5 BZ |
356 | } |
357 | ||
7bd8f09f | 358 | static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
132ff4e5 | 359 | { |
7648d28f | 360 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 361 | |
9374253f | 362 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 | 363 | |
132ff4e5 BZ |
364 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
365 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
366 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 367 | skb->data, skb->len); |
132ff4e5 BZ |
368 | return -EBUSY; |
369 | } | |
370 | ||
371 | switch (bt_cb(skb)->pkt_type) { | |
372 | case HCI_COMMAND_PKT: | |
373 | hdev->stat.cmd_tx++; | |
374 | break; | |
375 | ||
376 | case HCI_ACLDATA_PKT: | |
377 | hdev->stat.acl_tx++; | |
378 | break; | |
379 | ||
380 | case HCI_SCODATA_PKT: | |
381 | hdev->stat.sco_tx++; | |
382 | break; | |
383 | } | |
384 | ||
385 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
386 | ||
387 | wake_up_interruptible(&priv->main_thread.wait_q); | |
388 | ||
132ff4e5 BZ |
389 | return 0; |
390 | } | |
391 | ||
392 | static int btmrvl_flush(struct hci_dev *hdev) | |
393 | { | |
155961e8 | 394 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 395 | |
132ff4e5 BZ |
396 | skb_queue_purge(&priv->adapter->tx_queue); |
397 | ||
132ff4e5 BZ |
398 | return 0; |
399 | } | |
400 | ||
401 | static int btmrvl_close(struct hci_dev *hdev) | |
402 | { | |
155961e8 | 403 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 404 | |
9374253f | 405 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 406 | return 0; |
132ff4e5 BZ |
407 | |
408 | skb_queue_purge(&priv->adapter->tx_queue); | |
409 | ||
132ff4e5 BZ |
410 | return 0; |
411 | } | |
412 | ||
413 | static int btmrvl_open(struct hci_dev *hdev) | |
414 | { | |
132ff4e5 BZ |
415 | set_bit(HCI_RUNNING, &hdev->flags); |
416 | ||
132ff4e5 BZ |
417 | return 0; |
418 | } | |
419 | ||
2cc86890 AK |
420 | /* |
421 | * This function parses provided calibration data input. It should contain | |
422 | * hex bytes separated by space or new line character. Here is an example. | |
423 | * 00 1C 01 37 FF FF FF FF 02 04 7F 01 | |
424 | * CE BA 00 00 00 2D C6 C0 00 00 00 00 | |
425 | * 00 F0 00 00 | |
426 | */ | |
427 | static int btmrvl_parse_cal_cfg(const u8 *src, u32 len, u8 *dst, u32 dst_size) | |
428 | { | |
429 | const u8 *s = src; | |
430 | u8 *d = dst; | |
431 | int ret; | |
432 | u8 tmp[3]; | |
433 | ||
434 | tmp[2] = '\0'; | |
435 | while ((s - src) <= len - 2) { | |
436 | if (isspace(*s)) { | |
437 | s++; | |
438 | continue; | |
439 | } | |
440 | ||
441 | if (isxdigit(*s)) { | |
442 | if ((d - dst) >= dst_size) { | |
443 | BT_ERR("calibration data file too big!!!"); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | memcpy(tmp, s, 2); | |
448 | ||
449 | ret = kstrtou8(tmp, 16, d++); | |
450 | if (ret < 0) | |
451 | return ret; | |
452 | ||
453 | s += 2; | |
454 | } else { | |
455 | return -EINVAL; | |
456 | } | |
457 | } | |
458 | if (d == dst) | |
459 | return -EINVAL; | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static int btmrvl_load_cal_data(struct btmrvl_private *priv, | |
465 | u8 *config_data) | |
466 | { | |
467 | int i, ret; | |
468 | u8 data[BT_CMD_DATA_SIZE]; | |
469 | ||
470 | data[0] = 0x00; | |
471 | data[1] = 0x00; | |
472 | data[2] = 0x00; | |
473 | data[3] = BT_CMD_DATA_SIZE - 4; | |
474 | ||
475 | /* Swap cal-data bytes. Each four bytes are swapped. Considering 4 | |
476 | * byte SDIO header offset, mapping of input and output bytes will be | |
477 | * {3, 2, 1, 0} -> {0+4, 1+4, 2+4, 3+4}, | |
478 | * {7, 6, 5, 4} -> {4+4, 5+4, 6+4, 7+4} */ | |
479 | for (i = 4; i < BT_CMD_DATA_SIZE; i++) | |
480 | data[i] = config_data[(i / 4) * 8 - 1 - i]; | |
481 | ||
482 | print_hex_dump_bytes("Calibration data: ", | |
483 | DUMP_PREFIX_OFFSET, data, BT_CMD_DATA_SIZE); | |
484 | ||
485 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, | |
486 | BT_CMD_DATA_SIZE); | |
487 | if (ret) | |
488 | BT_ERR("Failed to download caibration data\n"); | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | static int | |
494 | btmrvl_process_cal_cfg(struct btmrvl_private *priv, u8 *data, u32 size) | |
495 | { | |
496 | u8 cal_data[BT_CAL_DATA_SIZE]; | |
497 | int ret; | |
498 | ||
499 | ret = btmrvl_parse_cal_cfg(data, size, cal_data, sizeof(cal_data)); | |
500 | if (ret) | |
501 | return ret; | |
502 | ||
503 | ret = btmrvl_load_cal_data(priv, cal_data); | |
504 | if (ret) { | |
505 | BT_ERR("Fail to load calibrate data"); | |
506 | return ret; | |
507 | } | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
512 | static int btmrvl_cal_data_config(struct btmrvl_private *priv) | |
513 | { | |
514 | const struct firmware *cfg; | |
515 | int ret; | |
516 | const char *cal_data = priv->btmrvl_dev.cal_data; | |
517 | ||
518 | if (!cal_data) | |
519 | return 0; | |
520 | ||
521 | ret = request_firmware(&cfg, cal_data, priv->btmrvl_dev.dev); | |
522 | if (ret < 0) { | |
523 | BT_DBG("Failed to get %s file, skipping cal data download", | |
524 | cal_data); | |
525 | return 0; | |
526 | } | |
527 | ||
528 | ret = btmrvl_process_cal_cfg(priv, (u8 *)cfg->data, cfg->size); | |
529 | release_firmware(cfg); | |
530 | return ret; | |
531 | } | |
532 | ||
4b245722 AK |
533 | static int btmrvl_setup(struct hci_dev *hdev) |
534 | { | |
535 | struct btmrvl_private *priv = hci_get_drvdata(hdev); | |
536 | ||
537 | btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); | |
538 | ||
2cc86890 AK |
539 | if (btmrvl_cal_data_config(priv)) |
540 | BT_ERR("Set cal data failed"); | |
541 | ||
4b245722 AK |
542 | priv->btmrvl_dev.psmode = 1; |
543 | btmrvl_enable_ps(priv); | |
544 | ||
545 | priv->btmrvl_dev.gpio_gap = 0xffff; | |
546 | btmrvl_send_hscfg_cmd(priv); | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
132ff4e5 BZ |
551 | /* |
552 | * This function handles the event generated by firmware, rx data | |
553 | * received from firmware, and tx data sent from kernel. | |
554 | */ | |
555 | static int btmrvl_service_main_thread(void *data) | |
556 | { | |
557 | struct btmrvl_thread *thread = data; | |
558 | struct btmrvl_private *priv = thread->priv; | |
559 | struct btmrvl_adapter *adapter = priv->adapter; | |
560 | wait_queue_t wait; | |
561 | struct sk_buff *skb; | |
562 | ulong flags; | |
563 | ||
132ff4e5 BZ |
564 | init_waitqueue_entry(&wait, current); |
565 | ||
132ff4e5 BZ |
566 | for (;;) { |
567 | add_wait_queue(&thread->wait_q, &wait); | |
568 | ||
569 | set_current_state(TASK_INTERRUPTIBLE); | |
ea05fea9 DD |
570 | if (kthread_should_stop()) { |
571 | BT_DBG("main_thread: break from main thread"); | |
572 | break; | |
573 | } | |
132ff4e5 BZ |
574 | |
575 | if (adapter->wakeup_tries || | |
4271e08d MH |
576 | ((!adapter->int_count) && |
577 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
578 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
579 | BT_DBG("main_thread is sleeping..."); |
580 | schedule(); | |
581 | } | |
582 | ||
583 | set_current_state(TASK_RUNNING); | |
584 | ||
585 | remove_wait_queue(&thread->wait_q, &wait); | |
586 | ||
587 | BT_DBG("main_thread woke up"); | |
588 | ||
132ff4e5 BZ |
589 | spin_lock_irqsave(&priv->driver_lock, flags); |
590 | if (adapter->int_count) { | |
591 | adapter->int_count = 0; | |
d1d10d78 AK |
592 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
593 | priv->hw_process_int_status(priv); | |
4271e08d MH |
594 | } else if (adapter->ps_state == PS_SLEEP && |
595 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
596 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
597 | adapter->wakeup_tries++; | |
598 | priv->hw_wakeup_firmware(priv); | |
599 | continue; | |
d1d10d78 AK |
600 | } else { |
601 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 602 | } |
132ff4e5 BZ |
603 | |
604 | if (adapter->ps_state == PS_SLEEP) | |
605 | continue; | |
606 | ||
607 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
608 | continue; | |
609 | ||
610 | skb = skb_dequeue(&adapter->tx_queue); | |
611 | if (skb) { | |
612 | if (btmrvl_tx_pkt(priv, skb)) | |
613 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
614 | else | |
4271e08d | 615 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
616 | |
617 | kfree_skb(skb); | |
618 | } | |
619 | } | |
620 | ||
132ff4e5 BZ |
621 | return 0; |
622 | } | |
623 | ||
64061607 | 624 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
625 | { |
626 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
627 | int ret; |
628 | ||
132ff4e5 BZ |
629 | hdev = hci_alloc_dev(); |
630 | if (!hdev) { | |
631 | BT_ERR("Can not allocate HCI device"); | |
632 | goto err_hdev; | |
633 | } | |
634 | ||
132ff4e5 | 635 | priv->btmrvl_dev.hcidev = hdev; |
155961e8 | 636 | hci_set_drvdata(hdev, priv); |
132ff4e5 | 637 | |
e93ac9c0 MH |
638 | hdev->bus = HCI_SDIO; |
639 | hdev->open = btmrvl_open; | |
132ff4e5 BZ |
640 | hdev->close = btmrvl_close; |
641 | hdev->flush = btmrvl_flush; | |
e93ac9c0 | 642 | hdev->send = btmrvl_send_frame; |
4b245722 | 643 | hdev->setup = btmrvl_setup; |
64061607 | 644 | |
f120c6b6 BZ |
645 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
646 | ||
132ff4e5 BZ |
647 | ret = hci_register_dev(hdev); |
648 | if (ret < 0) { | |
649 | BT_ERR("Can not register HCI device"); | |
650 | goto err_hci_register_dev; | |
651 | } | |
652 | ||
fb784f05 BZ |
653 | #ifdef CONFIG_DEBUG_FS |
654 | btmrvl_debugfs_init(hdev); | |
655 | #endif | |
656 | ||
64061607 | 657 | return 0; |
132ff4e5 BZ |
658 | |
659 | err_hci_register_dev: | |
132ff4e5 BZ |
660 | hci_free_dev(hdev); |
661 | ||
662 | err_hdev: | |
64061607 BZ |
663 | /* Stop the thread servicing the interrupts */ |
664 | kthread_stop(priv->main_thread.task); | |
665 | ||
132ff4e5 | 666 | btmrvl_free_adapter(priv); |
64061607 BZ |
667 | kfree(priv); |
668 | ||
669 | return -ENOMEM; | |
670 | } | |
671 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
672 | ||
673 | struct btmrvl_private *btmrvl_add_card(void *card) | |
674 | { | |
675 | struct btmrvl_private *priv; | |
676 | ||
677 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
678 | if (!priv) { | |
679 | BT_ERR("Can not allocate priv"); | |
680 | goto err_priv; | |
681 | } | |
682 | ||
683 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
684 | if (!priv->adapter) { | |
685 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
686 | goto err_adapter; | |
687 | } | |
688 | ||
689 | btmrvl_init_adapter(priv); | |
690 | ||
691 | BT_DBG("Starting kthread..."); | |
692 | priv->main_thread.priv = priv; | |
693 | spin_lock_init(&priv->driver_lock); | |
694 | ||
695 | init_waitqueue_head(&priv->main_thread.wait_q); | |
696 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
697 | &priv->main_thread, "btmrvl_main_service"); | |
698 | ||
699 | priv->btmrvl_dev.card = card; | |
700 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
701 | ||
702 | return priv; | |
132ff4e5 BZ |
703 | |
704 | err_adapter: | |
705 | kfree(priv); | |
706 | ||
707 | err_priv: | |
132ff4e5 BZ |
708 | return NULL; |
709 | } | |
710 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
711 | ||
712 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
713 | { | |
714 | struct hci_dev *hdev; | |
715 | ||
132ff4e5 BZ |
716 | hdev = priv->btmrvl_dev.hcidev; |
717 | ||
718 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
719 | ||
720 | kthread_stop(priv->main_thread.task); | |
721 | ||
fb784f05 BZ |
722 | #ifdef CONFIG_DEBUG_FS |
723 | btmrvl_debugfs_remove(hdev); | |
724 | #endif | |
725 | ||
132ff4e5 BZ |
726 | hci_unregister_dev(hdev); |
727 | ||
728 | hci_free_dev(hdev); | |
729 | ||
730 | priv->btmrvl_dev.hcidev = NULL; | |
731 | ||
732 | btmrvl_free_adapter(priv); | |
733 | ||
734 | kfree(priv); | |
735 | ||
132ff4e5 BZ |
736 | return 0; |
737 | } | |
738 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
739 | ||
740 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 741 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
742 | MODULE_VERSION(VERSION); |
743 | MODULE_LICENSE("GPL v2"); |