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 | 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> | |
dc759613 | 25 | #include <linux/mmc/sdio_func.h> |
132ff4e5 BZ |
26 | |
27 | #include "btmrvl_drv.h" | |
0d367408 | 28 | #include "btmrvl_sdio.h" |
132ff4e5 BZ |
29 | |
30 | #define VERSION "1.0" | |
31 | ||
32 | /* | |
33 | * This function is called by interface specific interrupt handler. | |
34 | * It updates Power Save & Host Sleep states, and wakes up the main | |
35 | * thread. | |
36 | */ | |
37 | void btmrvl_interrupt(struct btmrvl_private *priv) | |
38 | { | |
132ff4e5 BZ |
39 | priv->adapter->ps_state = PS_AWAKE; |
40 | ||
41 | priv->adapter->wakeup_tries = 0; | |
42 | ||
43 | priv->adapter->int_count++; | |
44 | ||
4c79e1dd | 45 | if (priv->adapter->hs_state == HS_ACTIVATED) { |
7365d475 | 46 | BT_DBG("BT: HS DEACTIVATED in ISR!"); |
4c79e1dd AK |
47 | priv->adapter->hs_state = HS_DEACTIVATED; |
48 | } | |
49 | ||
132ff4e5 | 50 | wake_up_interruptible(&priv->main_thread.wait_q); |
132ff4e5 BZ |
51 | } |
52 | EXPORT_SYMBOL_GPL(btmrvl_interrupt); | |
53 | ||
ea1e76a3 | 54 | bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) |
132ff4e5 | 55 | { |
4271e08d | 56 | struct hci_event_hdr *hdr = (void *) skb->data; |
132ff4e5 | 57 | |
132ff4e5 | 58 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
2c2453f3 | 59 | struct hci_ev_cmd_complete *ec; |
3e4543ab | 60 | u16 opcode; |
2c2453f3 | 61 | |
4271e08d | 62 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 | 63 | opcode = __le16_to_cpu(ec->opcode); |
ea1e76a3 | 64 | |
c037874c | 65 | if (priv->btmrvl_dev.sendcmdflag) { |
132ff4e5 BZ |
66 | priv->btmrvl_dev.sendcmdflag = false; |
67 | priv->adapter->cmd_complete = true; | |
68 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
ea1e76a3 | 69 | |
d986b4a6 AK |
70 | if (hci_opcode_ogf(opcode) == 0x3F) { |
71 | BT_DBG("vendor event skipped: opcode=%#4.4x", | |
72 | opcode); | |
73 | kfree_skb(skb); | |
74 | return false; | |
75 | } | |
ea1e76a3 | 76 | } |
132ff4e5 | 77 | } |
ea1e76a3 AE |
78 | |
79 | return true; | |
132ff4e5 BZ |
80 | } |
81 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
82 | ||
83 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
84 | { | |
85 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 86 | struct btmrvl_event *event; |
31f085fe | 87 | int ret = 0; |
132ff4e5 | 88 | |
132ff4e5 BZ |
89 | event = (struct btmrvl_event *) skb->data; |
90 | if (event->ec != 0xff) { | |
91 | BT_DBG("Not Marvell Event=%x", event->ec); | |
92 | ret = -EINVAL; | |
93 | goto exit; | |
94 | } | |
95 | ||
96 | switch (event->data[0]) { | |
3e4543ab | 97 | case BT_EVENT_AUTO_SLEEP_MODE: |
132ff4e5 BZ |
98 | if (!event->data[2]) { |
99 | if (event->data[1] == BT_PS_ENABLE) | |
100 | adapter->psmode = 1; | |
101 | else | |
102 | adapter->psmode = 0; | |
103 | BT_DBG("PS Mode:%s", | |
104 | (adapter->psmode) ? "Enable" : "Disable"); | |
105 | } else { | |
106 | BT_DBG("PS Mode command failed"); | |
107 | } | |
108 | break; | |
109 | ||
3e4543ab | 110 | case BT_EVENT_HOST_SLEEP_CONFIG: |
132ff4e5 BZ |
111 | if (!event->data[3]) |
112 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 113 | event->data[2]); |
132ff4e5 BZ |
114 | else |
115 | BT_DBG("HSCFG command failed"); | |
116 | break; | |
117 | ||
3e4543ab | 118 | case BT_EVENT_HOST_SLEEP_ENABLE: |
132ff4e5 BZ |
119 | if (!event->data[1]) { |
120 | adapter->hs_state = HS_ACTIVATED; | |
121 | if (adapter->psmode) | |
122 | adapter->ps_state = PS_SLEEP; | |
396e04f4 | 123 | wake_up_interruptible(&adapter->event_hs_wait_q); |
132ff4e5 BZ |
124 | BT_DBG("HS ACTIVATED!"); |
125 | } else { | |
126 | BT_DBG("HS Enable failed"); | |
127 | } | |
128 | break; | |
129 | ||
3e4543ab | 130 | case BT_EVENT_MODULE_CFG_REQ: |
4271e08d MH |
131 | if (priv->btmrvl_dev.sendcmdflag && |
132 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
133 | BT_DBG("EVENT:%s", |
134 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
135 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
136 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 137 | |
8f1e1742 DV |
138 | if (event->length > 3 && event->data[3]) |
139 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
140 | else |
141 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
142 | ||
143 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
144 | } else if (priv->btmrvl_dev.sendcmdflag && |
145 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
146 | BT_DBG("EVENT:%s", (event->data[2]) ? |
147 | "Shutdown failed" : "Shutdown succeed"); | |
148 | } else { | |
149 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
150 | ret = -EINVAL; | |
151 | } | |
152 | break; | |
153 | ||
154 | case BT_EVENT_POWER_STATE: | |
155 | if (event->data[1] == BT_PS_SLEEP) | |
156 | adapter->ps_state = PS_SLEEP; | |
157 | BT_DBG("EVENT:%s", | |
158 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
159 | break; | |
160 | ||
161 | default: | |
162 | BT_DBG("Unknown Event=%d", event->data[0]); | |
163 | ret = -EINVAL; | |
164 | break; | |
165 | } | |
166 | ||
167 | exit: | |
168 | if (!ret) | |
169 | kfree_skb(skb); | |
170 | ||
132ff4e5 BZ |
171 | return ret; |
172 | } | |
173 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
174 | ||
3e4543ab | 175 | static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode, |
c037874c | 176 | const void *param, u8 len) |
132ff4e5 | 177 | { |
4271e08d | 178 | struct sk_buff *skb; |
7d5b400c | 179 | struct hci_command_hdr *hdr; |
132ff4e5 | 180 | |
7b4b8740 AK |
181 | if (priv->surprise_removed) { |
182 | BT_ERR("Card is removed"); | |
183 | return -EFAULT; | |
184 | } | |
185 | ||
7d5b400c | 186 | skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC); |
132ff4e5 BZ |
187 | if (skb == NULL) { |
188 | BT_ERR("No free skb"); | |
9374253f | 189 | return -ENOMEM; |
132ff4e5 BZ |
190 | } |
191 | ||
7d5b400c | 192 | hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE); |
3e4543ab | 193 | hdr->opcode = cpu_to_le16(opcode); |
7d5b400c | 194 | hdr->plen = len; |
c037874c AK |
195 | |
196 | if (len) | |
7d5b400c | 197 | memcpy(skb_put(skb, len), param, len); |
132ff4e5 BZ |
198 | |
199 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
200 | ||
132ff4e5 BZ |
201 | skb_queue_head(&priv->adapter->tx_queue, skb); |
202 | ||
203 | priv->btmrvl_dev.sendcmdflag = true; | |
204 | ||
205 | priv->adapter->cmd_complete = false; | |
206 | ||
132ff4e5 BZ |
207 | wake_up_interruptible(&priv->main_thread.wait_q); |
208 | ||
4271e08d MH |
209 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
210 | priv->adapter->cmd_complete, | |
c037874c AK |
211 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) |
212 | return -ETIMEDOUT; | |
213 | ||
214 | return 0; | |
215 | } | |
132ff4e5 | 216 | |
7125df53 | 217 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd) |
c037874c AK |
218 | { |
219 | int ret; | |
220 | ||
221 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); | |
222 | if (ret) | |
7365d475 | 223 | BT_ERR("module_cfg_cmd(%x) failed", subcmd); |
132ff4e5 | 224 | |
132ff4e5 BZ |
225 | return ret; |
226 | } | |
227 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
228 | ||
4df82b59 BZ |
229 | int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd) |
230 | { | |
231 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
232 | int ret; | |
233 | ||
234 | if (!card->support_pscan_win_report) | |
235 | return 0; | |
236 | ||
237 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE, | |
238 | &subcmd, 1); | |
239 | if (ret) | |
240 | BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret); | |
241 | ||
242 | return ret; | |
243 | } | |
244 | EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting); | |
245 | ||
2a8ff611 AK |
246 | int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
247 | { | |
c037874c AK |
248 | int ret; |
249 | u8 param[2]; | |
2a8ff611 | 250 | |
c037874c AK |
251 | param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
252 | param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
2a8ff611 | 253 | |
c037874c AK |
254 | BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", |
255 | param[0], param[1]); | |
2a8ff611 | 256 | |
c037874c AK |
257 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); |
258 | if (ret) | |
7365d475 | 259 | BT_ERR("HSCFG command failed"); |
2a8ff611 | 260 | |
c037874c | 261 | return ret; |
2a8ff611 AK |
262 | } |
263 | EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); | |
264 | ||
32fd6398 AK |
265 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
266 | { | |
c037874c AK |
267 | int ret; |
268 | u8 param; | |
32fd6398 AK |
269 | |
270 | if (priv->btmrvl_dev.psmode) | |
c037874c | 271 | param = BT_PS_ENABLE; |
32fd6398 | 272 | else |
c037874c | 273 | param = BT_PS_DISABLE; |
32fd6398 | 274 | |
c037874c AK |
275 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); |
276 | if (ret) | |
7365d475 | 277 | BT_ERR("PSMODE command failed"); |
32fd6398 AK |
278 | |
279 | return 0; | |
280 | } | |
281 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
282 | ||
ba54a16f | 283 | int btmrvl_enable_hs(struct btmrvl_private *priv) |
132ff4e5 | 284 | { |
396e04f4 | 285 | struct btmrvl_adapter *adapter = priv->adapter; |
c037874c | 286 | int ret; |
132ff4e5 | 287 | |
c037874c | 288 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); |
396e04f4 | 289 | if (ret) { |
7365d475 | 290 | BT_ERR("Host sleep enable command failed"); |
396e04f4 CRL |
291 | return ret; |
292 | } | |
293 | ||
294 | ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q, | |
295 | adapter->hs_state, | |
296 | msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED)); | |
297 | if (ret < 0) { | |
298 | BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d", | |
299 | ret, adapter->hs_state, adapter->ps_state, | |
300 | adapter->wakeup_tries); | |
301 | } else if (!ret) { | |
302 | BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state, | |
303 | adapter->ps_state, adapter->wakeup_tries); | |
304 | ret = -ETIMEDOUT; | |
305 | } else { | |
306 | BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state, | |
307 | adapter->ps_state, adapter->wakeup_tries); | |
308 | ret = 0; | |
309 | } | |
132ff4e5 | 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; | |
7365d475 | 337 | BT_DBG("BT: HS DEACTIVATED due to host activity!"); |
132ff4e5 BZ |
338 | } |
339 | } | |
340 | ||
132ff4e5 BZ |
341 | return ret; |
342 | } | |
343 | ||
dc759613 XH |
344 | void btmrvl_firmware_dump(struct btmrvl_private *priv) |
345 | { | |
346 | if (priv->firmware_dump) | |
347 | priv->firmware_dump(priv); | |
348 | } | |
349 | ||
132ff4e5 BZ |
350 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) |
351 | { | |
9374253f | 352 | int ret = 0; |
132ff4e5 | 353 | |
9374253f | 354 | if (!skb || !skb->data) |
132ff4e5 | 355 | return -EINVAL; |
132ff4e5 BZ |
356 | |
357 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
358 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 359 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
360 | return -EINVAL; |
361 | } | |
362 | ||
363 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
364 | struct sk_buff *tmp = skb; | |
365 | ||
366 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
367 | if (!skb) { | |
368 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
369 | BTM_HEADER_LEN); | |
370 | skb = tmp; | |
132ff4e5 BZ |
371 | return -EINVAL; |
372 | } | |
373 | ||
374 | kfree_skb(tmp); | |
375 | } | |
376 | ||
377 | skb_push(skb, BTM_HEADER_LEN); | |
378 | ||
379 | /* header type: byte[3] | |
380 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
381 | * header length: byte[2][1][0] | |
382 | */ | |
383 | ||
384 | skb->data[0] = (skb->len & 0x0000ff); | |
385 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
386 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
387 | skb->data[3] = bt_cb(skb)->pkt_type; | |
388 | ||
389 | if (priv->hw_host_to_card) | |
390 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
391 | ||
132ff4e5 BZ |
392 | return ret; |
393 | } | |
394 | ||
395 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
396 | { | |
0d367408 BZ |
397 | int buf_size; |
398 | ||
132ff4e5 BZ |
399 | skb_queue_head_init(&priv->adapter->tx_queue); |
400 | ||
401 | priv->adapter->ps_state = PS_AWAKE; | |
402 | ||
0d367408 BZ |
403 | buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN); |
404 | priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL); | |
405 | if (!priv->adapter->hw_regs_buf) { | |
406 | priv->adapter->hw_regs = NULL; | |
407 | BT_ERR("Unable to allocate buffer for hw_regs."); | |
408 | } else { | |
409 | priv->adapter->hw_regs = | |
410 | (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf, | |
411 | BTSDIO_DMA_ALIGN); | |
412 | BT_DBG("hw_regs_buf=%p hw_regs=%p", | |
413 | priv->adapter->hw_regs_buf, priv->adapter->hw_regs); | |
414 | } | |
415 | ||
132ff4e5 | 416 | init_waitqueue_head(&priv->adapter->cmd_wait_q); |
396e04f4 | 417 | init_waitqueue_head(&priv->adapter->event_hs_wait_q); |
132ff4e5 BZ |
418 | } |
419 | ||
420 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
421 | { | |
132ff4e5 BZ |
422 | skb_queue_purge(&priv->adapter->tx_queue); |
423 | ||
0d367408 | 424 | kfree(priv->adapter->hw_regs_buf); |
132ff4e5 BZ |
425 | kfree(priv->adapter); |
426 | ||
427 | priv->adapter = NULL; | |
132ff4e5 BZ |
428 | } |
429 | ||
7bd8f09f | 430 | static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
132ff4e5 | 431 | { |
7648d28f | 432 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 433 | |
9374253f | 434 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 | 435 | |
132ff4e5 BZ |
436 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
437 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
438 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 439 | skb->data, skb->len); |
132ff4e5 BZ |
440 | return -EBUSY; |
441 | } | |
442 | ||
443 | switch (bt_cb(skb)->pkt_type) { | |
444 | case HCI_COMMAND_PKT: | |
445 | hdev->stat.cmd_tx++; | |
446 | break; | |
447 | ||
448 | case HCI_ACLDATA_PKT: | |
449 | hdev->stat.acl_tx++; | |
450 | break; | |
451 | ||
452 | case HCI_SCODATA_PKT: | |
453 | hdev->stat.sco_tx++; | |
454 | break; | |
455 | } | |
456 | ||
457 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
458 | ||
459 | wake_up_interruptible(&priv->main_thread.wait_q); | |
460 | ||
132ff4e5 BZ |
461 | return 0; |
462 | } | |
463 | ||
464 | static int btmrvl_flush(struct hci_dev *hdev) | |
465 | { | |
155961e8 | 466 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 467 | |
132ff4e5 BZ |
468 | skb_queue_purge(&priv->adapter->tx_queue); |
469 | ||
132ff4e5 BZ |
470 | return 0; |
471 | } | |
472 | ||
473 | static int btmrvl_close(struct hci_dev *hdev) | |
474 | { | |
155961e8 | 475 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 476 | |
9374253f | 477 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 478 | return 0; |
132ff4e5 BZ |
479 | |
480 | skb_queue_purge(&priv->adapter->tx_queue); | |
481 | ||
132ff4e5 BZ |
482 | return 0; |
483 | } | |
484 | ||
485 | static int btmrvl_open(struct hci_dev *hdev) | |
486 | { | |
132ff4e5 BZ |
487 | set_bit(HCI_RUNNING, &hdev->flags); |
488 | ||
132ff4e5 BZ |
489 | return 0; |
490 | } | |
491 | ||
433a9389 | 492 | static int btmrvl_download_cal_data(struct btmrvl_private *priv, |
8a4934f1 | 493 | u8 *data, int len) |
2cc86890 | 494 | { |
8a4934f1 | 495 | int ret; |
2cc86890 AK |
496 | |
497 | data[0] = 0x00; | |
498 | data[1] = 0x00; | |
499 | data[2] = 0x00; | |
8a4934f1 | 500 | data[3] = len; |
2cc86890 AK |
501 | |
502 | print_hex_dump_bytes("Calibration data: ", | |
8a4934f1 | 503 | DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); |
2cc86890 AK |
504 | |
505 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, | |
8a4934f1 | 506 | BT_CAL_HDR_LEN + len); |
2cc86890 | 507 | if (ret) |
7365d475 | 508 | BT_ERR("Failed to download caibration data"); |
2cc86890 AK |
509 | |
510 | return 0; | |
511 | } | |
512 | ||
025a60a7 | 513 | static int btmrvl_check_device_tree(struct btmrvl_private *priv) |
2cc86890 | 514 | { |
433a9389 | 515 | struct device_node *dt_node; |
8a4934f1 | 516 | u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; |
2cc86890 | 517 | int ret; |
025a60a7 | 518 | u32 val; |
2cc86890 | 519 | |
098ea6bc | 520 | for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") { |
025a60a7 AK |
521 | ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val); |
522 | if (!ret) | |
523 | priv->btmrvl_dev.gpio_gap = val; | |
524 | ||
098ea6bc AK |
525 | ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data", |
526 | cal_data + BT_CAL_HDR_LEN, | |
527 | BT_CAL_DATA_SIZE); | |
528 | if (ret) | |
529 | return ret; | |
530 | ||
531 | BT_DBG("Use cal data from device tree"); | |
532 | ret = btmrvl_download_cal_data(priv, cal_data, | |
533 | BT_CAL_DATA_SIZE); | |
534 | if (ret) { | |
535 | BT_ERR("Fail to download calibrate data"); | |
536 | return ret; | |
537 | } | |
2cc86890 AK |
538 | } |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
4b245722 AK |
543 | static int btmrvl_setup(struct hci_dev *hdev) |
544 | { | |
545 | struct btmrvl_private *priv = hci_get_drvdata(hdev); | |
9b89fdfe | 546 | int ret; |
4b245722 | 547 | |
9b89fdfe AK |
548 | ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); |
549 | if (ret) | |
550 | return ret; | |
4b245722 | 551 | |
025a60a7 AK |
552 | priv->btmrvl_dev.gpio_gap = 0xffff; |
553 | ||
554 | btmrvl_check_device_tree(priv); | |
2cc86890 | 555 | |
4df82b59 BZ |
556 | btmrvl_pscan_window_reporting(priv, 0x01); |
557 | ||
4b245722 AK |
558 | priv->btmrvl_dev.psmode = 1; |
559 | btmrvl_enable_ps(priv); | |
560 | ||
4b245722 AK |
561 | btmrvl_send_hscfg_cmd(priv); |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
27b869f5 AK |
566 | static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) |
567 | { | |
568 | struct sk_buff *skb; | |
569 | long ret; | |
570 | u8 buf[8]; | |
571 | ||
572 | buf[0] = MRVL_VENDOR_PKT; | |
573 | buf[1] = sizeof(bdaddr_t); | |
574 | memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); | |
575 | ||
576 | skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf, | |
577 | HCI_INIT_TIMEOUT); | |
578 | if (IS_ERR(skb)) { | |
579 | ret = PTR_ERR(skb); | |
580 | BT_ERR("%s: changing btmrvl device address failed (%ld)", | |
581 | hdev->name, ret); | |
582 | return ret; | |
583 | } | |
584 | kfree_skb(skb); | |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
132ff4e5 BZ |
589 | /* |
590 | * This function handles the event generated by firmware, rx data | |
591 | * received from firmware, and tx data sent from kernel. | |
592 | */ | |
593 | static int btmrvl_service_main_thread(void *data) | |
594 | { | |
595 | struct btmrvl_thread *thread = data; | |
596 | struct btmrvl_private *priv = thread->priv; | |
597 | struct btmrvl_adapter *adapter = priv->adapter; | |
598 | wait_queue_t wait; | |
599 | struct sk_buff *skb; | |
600 | ulong flags; | |
601 | ||
132ff4e5 BZ |
602 | init_waitqueue_entry(&wait, current); |
603 | ||
132ff4e5 BZ |
604 | for (;;) { |
605 | add_wait_queue(&thread->wait_q, &wait); | |
606 | ||
607 | set_current_state(TASK_INTERRUPTIBLE); | |
7b4b8740 | 608 | if (kthread_should_stop() || priv->surprise_removed) { |
ea05fea9 DD |
609 | BT_DBG("main_thread: break from main thread"); |
610 | break; | |
611 | } | |
132ff4e5 BZ |
612 | |
613 | if (adapter->wakeup_tries || | |
4271e08d MH |
614 | ((!adapter->int_count) && |
615 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
616 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
617 | BT_DBG("main_thread is sleeping..."); |
618 | schedule(); | |
619 | } | |
620 | ||
621 | set_current_state(TASK_RUNNING); | |
622 | ||
623 | remove_wait_queue(&thread->wait_q, &wait); | |
624 | ||
625 | BT_DBG("main_thread woke up"); | |
626 | ||
7b4b8740 | 627 | if (kthread_should_stop() || priv->surprise_removed) { |
8b324fa6 AK |
628 | BT_DBG("main_thread: break from main thread"); |
629 | break; | |
630 | } | |
631 | ||
132ff4e5 BZ |
632 | spin_lock_irqsave(&priv->driver_lock, flags); |
633 | if (adapter->int_count) { | |
634 | adapter->int_count = 0; | |
d1d10d78 AK |
635 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
636 | priv->hw_process_int_status(priv); | |
4271e08d MH |
637 | } else if (adapter->ps_state == PS_SLEEP && |
638 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
639 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
640 | adapter->wakeup_tries++; | |
641 | priv->hw_wakeup_firmware(priv); | |
642 | continue; | |
d1d10d78 AK |
643 | } else { |
644 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 645 | } |
132ff4e5 BZ |
646 | |
647 | if (adapter->ps_state == PS_SLEEP) | |
648 | continue; | |
649 | ||
650 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
651 | continue; | |
652 | ||
653 | skb = skb_dequeue(&adapter->tx_queue); | |
654 | if (skb) { | |
655 | if (btmrvl_tx_pkt(priv, skb)) | |
656 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
657 | else | |
4271e08d | 658 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
659 | |
660 | kfree_skb(skb); | |
661 | } | |
662 | } | |
663 | ||
132ff4e5 BZ |
664 | return 0; |
665 | } | |
666 | ||
64061607 | 667 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
668 | { |
669 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
670 | int ret; |
671 | ||
132ff4e5 BZ |
672 | hdev = hci_alloc_dev(); |
673 | if (!hdev) { | |
674 | BT_ERR("Can not allocate HCI device"); | |
675 | goto err_hdev; | |
676 | } | |
677 | ||
132ff4e5 | 678 | priv->btmrvl_dev.hcidev = hdev; |
155961e8 | 679 | hci_set_drvdata(hdev, priv); |
132ff4e5 | 680 | |
e93ac9c0 MH |
681 | hdev->bus = HCI_SDIO; |
682 | hdev->open = btmrvl_open; | |
132ff4e5 BZ |
683 | hdev->close = btmrvl_close; |
684 | hdev->flush = btmrvl_flush; | |
e93ac9c0 | 685 | hdev->send = btmrvl_send_frame; |
4b245722 | 686 | hdev->setup = btmrvl_setup; |
27b869f5 | 687 | hdev->set_bdaddr = btmrvl_set_bdaddr; |
64061607 | 688 | |
f120c6b6 BZ |
689 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
690 | ||
132ff4e5 BZ |
691 | ret = hci_register_dev(hdev); |
692 | if (ret < 0) { | |
693 | BT_ERR("Can not register HCI device"); | |
694 | goto err_hci_register_dev; | |
695 | } | |
696 | ||
fb784f05 BZ |
697 | #ifdef CONFIG_DEBUG_FS |
698 | btmrvl_debugfs_init(hdev); | |
699 | #endif | |
700 | ||
64061607 | 701 | return 0; |
132ff4e5 BZ |
702 | |
703 | err_hci_register_dev: | |
132ff4e5 BZ |
704 | hci_free_dev(hdev); |
705 | ||
706 | err_hdev: | |
64061607 BZ |
707 | /* Stop the thread servicing the interrupts */ |
708 | kthread_stop(priv->main_thread.task); | |
709 | ||
132ff4e5 | 710 | btmrvl_free_adapter(priv); |
64061607 BZ |
711 | kfree(priv); |
712 | ||
713 | return -ENOMEM; | |
714 | } | |
715 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
716 | ||
717 | struct btmrvl_private *btmrvl_add_card(void *card) | |
718 | { | |
719 | struct btmrvl_private *priv; | |
720 | ||
721 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
722 | if (!priv) { | |
723 | BT_ERR("Can not allocate priv"); | |
724 | goto err_priv; | |
725 | } | |
726 | ||
727 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
728 | if (!priv->adapter) { | |
729 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
730 | goto err_adapter; | |
731 | } | |
732 | ||
733 | btmrvl_init_adapter(priv); | |
734 | ||
735 | BT_DBG("Starting kthread..."); | |
736 | priv->main_thread.priv = priv; | |
737 | spin_lock_init(&priv->driver_lock); | |
738 | ||
739 | init_waitqueue_head(&priv->main_thread.wait_q); | |
740 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
741 | &priv->main_thread, "btmrvl_main_service"); | |
8500d791 AP |
742 | if (IS_ERR(priv->main_thread.task)) |
743 | goto err_thread; | |
64061607 BZ |
744 | |
745 | priv->btmrvl_dev.card = card; | |
746 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
747 | ||
748 | return priv; | |
132ff4e5 | 749 | |
8500d791 AP |
750 | err_thread: |
751 | btmrvl_free_adapter(priv); | |
752 | ||
132ff4e5 BZ |
753 | err_adapter: |
754 | kfree(priv); | |
755 | ||
756 | err_priv: | |
132ff4e5 BZ |
757 | return NULL; |
758 | } | |
759 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
760 | ||
761 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
762 | { | |
763 | struct hci_dev *hdev; | |
764 | ||
132ff4e5 BZ |
765 | hdev = priv->btmrvl_dev.hcidev; |
766 | ||
767 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
396e04f4 | 768 | wake_up_interruptible(&priv->adapter->event_hs_wait_q); |
132ff4e5 BZ |
769 | |
770 | kthread_stop(priv->main_thread.task); | |
771 | ||
fb784f05 BZ |
772 | #ifdef CONFIG_DEBUG_FS |
773 | btmrvl_debugfs_remove(hdev); | |
774 | #endif | |
775 | ||
132ff4e5 BZ |
776 | hci_unregister_dev(hdev); |
777 | ||
778 | hci_free_dev(hdev); | |
779 | ||
780 | priv->btmrvl_dev.hcidev = NULL; | |
781 | ||
782 | btmrvl_free_adapter(priv); | |
783 | ||
784 | kfree(priv); | |
785 | ||
132ff4e5 BZ |
786 | return 0; |
787 | } | |
788 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
789 | ||
790 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 791 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
792 | MODULE_VERSION(VERSION); |
793 | MODULE_LICENSE("GPL v2"); |