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Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/selinux into for...
[linux-2.6-block.git] / drivers / bluetooth / btmrvl_main.c
CommitLineData
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 */
37void 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}
52EXPORT_SYMBOL_GPL(btmrvl_interrupt);
53
ea1e76a3 54bool 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}
81EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
82
83int 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
167exit:
168 if (!ret)
169 kfree_skb(skb);
170
132ff4e5
BZ		 171 return ret;
172}
173EXPORT_SYMBOL_GPL(btmrvl_process_event);
174
3e4543ab 175static 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 209 if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
a9cc32d9
AK		 210 priv->adapter->cmd_complete ||
211 priv->surprise_removed,
0333d6dd 212 WAIT_UNTIL_CMD_RESP))
c037874c
AK		 213 return -ETIMEDOUT;
214
a9cc32d9
AK		 215 if (priv->surprise_removed)
216 return -EFAULT;
217
c037874c
AK		 218 return 0;
219}
132ff4e5 220
7125df53 221int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
c037874c
AK		 222{
223 int ret;
224
225 ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
226 if (ret)
7365d475 227 BT_ERR("module_cfg_cmd(%x) failed", subcmd);
132ff4e5 228
132ff4e5
BZ		 229 return ret;
230}
231EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
232
a715d11e
AK		 233static int btmrvl_enable_sco_routing_to_host(struct btmrvl_private *priv)
234{
235 int ret;
236 u8 subcmd = 0;
237
238 ret = btmrvl_send_sync_cmd(priv, BT_CMD_ROUTE_SCO_TO_HOST, &subcmd, 1);
239 if (ret)
240 BT_ERR("BT_CMD_ROUTE_SCO_TO_HOST command failed: %#x", ret);
241
242 return ret;
243}
244
4df82b59
BZ		 245int btmrvl_pscan_window_reporting(struct btmrvl_private *priv, u8 subcmd)
246{
247 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
248 int ret;
249
250 if (!card->support_pscan_win_report)
251 return 0;
252
253 ret = btmrvl_send_sync_cmd(priv, BT_CMD_PSCAN_WIN_REPORT_ENABLE,
254 &subcmd, 1);
255 if (ret)
256 BT_ERR("PSCAN_WIN_REPORT_ENABLE command failed: %#x", ret);
257
258 return ret;
259}
260EXPORT_SYMBOL_GPL(btmrvl_pscan_window_reporting);
261
2a8ff611
AK		 262int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
263{
c037874c
AK		 264 int ret;
265 u8 param[2];
2a8ff611 266
c037874c
AK		 267 param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
268 param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
2a8ff611 269
c037874c
AK		 270 BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
271 param[0], param[1]);
2a8ff611 272
c037874c
AK		 273 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
274 if (ret)
7365d475 275 BT_ERR("HSCFG command failed");
2a8ff611 276
c037874c 277 return ret;
2a8ff611
AK		 278}
279EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
280
32fd6398
AK		 281int btmrvl_enable_ps(struct btmrvl_private *priv)
282{
c037874c
AK		 283 int ret;
284 u8 param;
32fd6398
AK		 285
286 if (priv->btmrvl_dev.psmode)
c037874c 287 param = BT_PS_ENABLE;
32fd6398 288 else
c037874c 289 param = BT_PS_DISABLE;
32fd6398 290
c037874c
AK		 291 ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
292 if (ret)
7365d475 293 BT_ERR("PSMODE command failed");
32fd6398
AK		 294
295 return 0;
296}
297EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
298
ba54a16f 299int btmrvl_enable_hs(struct btmrvl_private *priv)
132ff4e5 300{
396e04f4 301 struct btmrvl_adapter *adapter = priv->adapter;
c037874c 302 int ret;
132ff4e5 303
c037874c 304 ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
396e04f4 305 if (ret) {
7365d475 306 BT_ERR("Host sleep enable command failed");
396e04f4
CRL		 307 return ret;
308 }
309
310 ret = wait_event_interruptible_timeout(adapter->event_hs_wait_q,
a9cc32d9
AK		 311 adapter->hs_state ||
312 priv->surprise_removed,
0333d6dd 313 WAIT_UNTIL_HS_STATE_CHANGED);
a9cc32d9 314 if (ret < 0 || priv->surprise_removed) {
396e04f4
CRL		 315 BT_ERR("event_hs_wait_q terminated (%d): %d,%d,%d",
316 ret, adapter->hs_state, adapter->ps_state,
317 adapter->wakeup_tries);
318 } else if (!ret) {
319 BT_ERR("hs_enable timeout: %d,%d,%d", adapter->hs_state,
320 adapter->ps_state, adapter->wakeup_tries);
321 ret = -ETIMEDOUT;
322 } else {
323 BT_DBG("host sleep enabled: %d,%d,%d", adapter->hs_state,
324 adapter->ps_state, adapter->wakeup_tries);
325 ret = 0;
326 }
132ff4e5 327
132ff4e5
BZ		 328 return ret;
329}
ba54a16f 330EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
132ff4e5
BZ		 331
332int btmrvl_prepare_command(struct btmrvl_private *priv)
333{
9374253f 334 int ret = 0;
132ff4e5
BZ		 335
336 if (priv->btmrvl_dev.hscfgcmd) {
337 priv->btmrvl_dev.hscfgcmd = 0;
2a8ff611 338 btmrvl_send_hscfg_cmd(priv);
132ff4e5
BZ		 339 }
340
341 if (priv->btmrvl_dev.pscmd) {
342 priv->btmrvl_dev.pscmd = 0;
32fd6398 343 btmrvl_enable_ps(priv);
132ff4e5
BZ		 344 }
345
346 if (priv->btmrvl_dev.hscmd) {
347 priv->btmrvl_dev.hscmd = 0;
348
349 if (priv->btmrvl_dev.hsmode) {
350 ret = btmrvl_enable_hs(priv);
351 } else {
352 ret = priv->hw_wakeup_firmware(priv);
353 priv->adapter->hs_state = HS_DEACTIVATED;
7365d475 354 BT_DBG("BT: HS DEACTIVATED due to host activity!");
132ff4e5
BZ		 355 }
356 }
357
132ff4e5
BZ		 358 return ret;
359}
360
dc759613
XH		 361void btmrvl_firmware_dump(struct btmrvl_private *priv)
362{
363 if (priv->firmware_dump)
364 priv->firmware_dump(priv);
365}
366
132ff4e5
BZ		 367static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
368{
9374253f 369 int ret = 0;
132ff4e5 370
9374253f 371 if (!skb || !skb->data)
132ff4e5 372 return -EINVAL;
132ff4e5
BZ		 373
374 if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
375 BT_ERR("Tx Error: Bad skb length %d : %d",
4271e08d 376 skb->len, BTM_UPLD_SIZE);
132ff4e5
BZ		 377 return -EINVAL;
378 }
379
380 if (skb_headroom(skb) < BTM_HEADER_LEN) {
381 struct sk_buff *tmp = skb;
382
383 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
384 if (!skb) {
385 BT_ERR("Tx Error: realloc_headroom failed %d",
386 BTM_HEADER_LEN);
387 skb = tmp;
132ff4e5
BZ		 388 return -EINVAL;
389 }
390
391 kfree_skb(tmp);
392 }
393
394 skb_push(skb, BTM_HEADER_LEN);
395
396 /* header type: byte[3]
397 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
398 * header length: byte[2][1][0]
399 */
400
401 skb->data[0] = (skb->len & 0x0000ff);
402 skb->data[1] = (skb->len & 0x00ff00) >> 8;
403 skb->data[2] = (skb->len & 0xff0000) >> 16;
404 skb->data[3] = bt_cb(skb)->pkt_type;
405
406 if (priv->hw_host_to_card)
407 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
408
132ff4e5
BZ		 409 return ret;
410}
411
412static void btmrvl_init_adapter(struct btmrvl_private *priv)
413{
0d367408
BZ		 414 int buf_size;
415
132ff4e5
BZ		 416 skb_queue_head_init(&priv->adapter->tx_queue);
417
418 priv->adapter->ps_state = PS_AWAKE;
419
0d367408
BZ		 420 buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN);
421 priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL);
422 if (!priv->adapter->hw_regs_buf) {
423 priv->adapter->hw_regs = NULL;
424 BT_ERR("Unable to allocate buffer for hw_regs.");
425 } else {
426 priv->adapter->hw_regs =
427 (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf,
428 BTSDIO_DMA_ALIGN);
429 BT_DBG("hw_regs_buf=%p hw_regs=%p",
430 priv->adapter->hw_regs_buf, priv->adapter->hw_regs);
431 }
432
132ff4e5 433 init_waitqueue_head(&priv->adapter->cmd_wait_q);
396e04f4 434 init_waitqueue_head(&priv->adapter->event_hs_wait_q);
132ff4e5
BZ		 435}
436
437static void btmrvl_free_adapter(struct btmrvl_private *priv)
438{
132ff4e5
BZ		 439 skb_queue_purge(&priv->adapter->tx_queue);
440
0d367408 441 kfree(priv->adapter->hw_regs_buf);
132ff4e5
BZ		 442 kfree(priv->adapter);
443
444 priv->adapter = NULL;
132ff4e5
BZ		 445}
446
7bd8f09f 447static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
132ff4e5 448{
7648d28f 449 struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5 450
9374253f 451 BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
132ff4e5 452
132ff4e5
BZ		 453 if (!test_bit(HCI_RUNNING, &hdev->flags)) {
454 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
455 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
4271e08d 456 skb->data, skb->len);
132ff4e5
BZ		 457 return -EBUSY;
458 }
459
460 switch (bt_cb(skb)->pkt_type) {
461 case HCI_COMMAND_PKT:
462 hdev->stat.cmd_tx++;
463 break;
464
465 case HCI_ACLDATA_PKT:
466 hdev->stat.acl_tx++;
467 break;
468
469 case HCI_SCODATA_PKT:
470 hdev->stat.sco_tx++;
471 break;
472 }
473
474 skb_queue_tail(&priv->adapter->tx_queue, skb);
475
476 wake_up_interruptible(&priv->main_thread.wait_q);
477
132ff4e5
BZ		 478 return 0;
479}
480
481static int btmrvl_flush(struct hci_dev *hdev)
482{
155961e8 483 struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5 484
132ff4e5
BZ		 485 skb_queue_purge(&priv->adapter->tx_queue);
486
132ff4e5
BZ		 487 return 0;
488}
489
490static int btmrvl_close(struct hci_dev *hdev)
491{
155961e8 492 struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5 493
9374253f 494 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
132ff4e5 495 return 0;
132ff4e5
BZ		 496
497 skb_queue_purge(&priv->adapter->tx_queue);
498
132ff4e5
BZ		 499 return 0;
500}
501
502static int btmrvl_open(struct hci_dev *hdev)
503{
132ff4e5
BZ		 504 set_bit(HCI_RUNNING, &hdev->flags);
505
132ff4e5
BZ		 506 return 0;
507}
508
433a9389 509static int btmrvl_download_cal_data(struct btmrvl_private *priv,
8a4934f1 510 u8 *data, int len)
2cc86890 511{
8a4934f1 512 int ret;
2cc86890
AK		 513
514 data[0] = 0x00;
515 data[1] = 0x00;
516 data[2] = 0x00;
8a4934f1 517 data[3] = len;
2cc86890
AK		 518
519 print_hex_dump_bytes("Calibration data: ",
8a4934f1 520 DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);
2cc86890
AK		 521
522 ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
8a4934f1 523 BT_CAL_HDR_LEN + len);
2cc86890 524 if (ret)
7365d475 525 BT_ERR("Failed to download caibration data");
2cc86890
AK		 526
527 return 0;
528}
529
025a60a7 530static int btmrvl_check_device_tree(struct btmrvl_private *priv)
2cc86890 531{
433a9389 532 struct device_node *dt_node;
8a4934f1 533 u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
2cc86890 534 int ret;
025a60a7 535 u32 val;
2cc86890 536
098ea6bc 537 for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") {
025a60a7
AK		 538 ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val);
539 if (!ret)
540 priv->btmrvl_dev.gpio_gap = val;
541
098ea6bc
AK		 542 ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data",
543 cal_data + BT_CAL_HDR_LEN,
544 BT_CAL_DATA_SIZE);
545 if (ret)
546 return ret;
547
548 BT_DBG("Use cal data from device tree");
549 ret = btmrvl_download_cal_data(priv, cal_data,
550 BT_CAL_DATA_SIZE);
551 if (ret) {
552 BT_ERR("Fail to download calibrate data");
553 return ret;
554 }
2cc86890
AK		 555 }
556
557 return 0;
558}
559
4b245722
AK		 560static int btmrvl_setup(struct hci_dev *hdev)
561{
562 struct btmrvl_private *priv = hci_get_drvdata(hdev);
9b89fdfe 563 int ret;
4b245722 564
9b89fdfe
AK		 565 ret = btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
566 if (ret)
567 return ret;
4b245722 568
025a60a7
AK		 569 priv->btmrvl_dev.gpio_gap = 0xffff;
570
571 btmrvl_check_device_tree(priv);
2cc86890 572
a715d11e
AK		 573 btmrvl_enable_sco_routing_to_host(priv);
574
4df82b59
BZ		 575 btmrvl_pscan_window_reporting(priv, 0x01);
576
4b245722
AK		 577 priv->btmrvl_dev.psmode = 1;
578 btmrvl_enable_ps(priv);
579
4b245722
AK		 580 btmrvl_send_hscfg_cmd(priv);
581
582 return 0;
583}
584
27b869f5
AK		 585static int btmrvl_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
586{
587 struct sk_buff *skb;
588 long ret;
589 u8 buf[8];
590
591 buf[0] = MRVL_VENDOR_PKT;
592 buf[1] = sizeof(bdaddr_t);
593 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
594
595 skb = __hci_cmd_sync(hdev, BT_CMD_SET_BDADDR, sizeof(buf), buf,
596 HCI_INIT_TIMEOUT);
597 if (IS_ERR(skb)) {
598 ret = PTR_ERR(skb);
599 BT_ERR("%s: changing btmrvl device address failed (%ld)",
600 hdev->name, ret);
601 return ret;
602 }
603 kfree_skb(skb);
604
605 return 0;
606}
607
132ff4e5
BZ		 608/*
609 * This function handles the event generated by firmware, rx data
610 * received from firmware, and tx data sent from kernel.
611 */
612static int btmrvl_service_main_thread(void *data)
613{
614 struct btmrvl_thread *thread = data;
615 struct btmrvl_private *priv = thread->priv;
616 struct btmrvl_adapter *adapter = priv->adapter;
617 wait_queue_t wait;
618 struct sk_buff *skb;
619 ulong flags;
620
132ff4e5
BZ		 621 init_waitqueue_entry(&wait, current);
622
132ff4e5
BZ		 623 for (;;) {
624 add_wait_queue(&thread->wait_q, &wait);
625
626 set_current_state(TASK_INTERRUPTIBLE);
7b4b8740 627 if (kthread_should_stop() || priv->surprise_removed) {
ea05fea9
DD		 628 BT_DBG("main_thread: break from main thread");
629 break;
630 }
132ff4e5
BZ		 631
632 if (adapter->wakeup_tries ||
4271e08d
MH		 633 ((!adapter->int_count) &&
634 (!priv->btmrvl_dev.tx_dnld_rdy ||
635 skb_queue_empty(&adapter->tx_queue)))) {
132ff4e5
BZ		 636 BT_DBG("main_thread is sleeping...");
637 schedule();
638 }
639
640 set_current_state(TASK_RUNNING);
641
642 remove_wait_queue(&thread->wait_q, &wait);
643
644 BT_DBG("main_thread woke up");
645
7b4b8740 646 if (kthread_should_stop() || priv->surprise_removed) {
8b324fa6
AK		 647 BT_DBG("main_thread: break from main thread");
648 break;
649 }
650
132ff4e5
BZ		 651 spin_lock_irqsave(&priv->driver_lock, flags);
652 if (adapter->int_count) {
653 adapter->int_count = 0;
d1d10d78
AK		 654 spin_unlock_irqrestore(&priv->driver_lock, flags);
655 priv->hw_process_int_status(priv);
4271e08d
MH		 656 } else if (adapter->ps_state == PS_SLEEP &&
657 !skb_queue_empty(&adapter->tx_queue)) {
132ff4e5
BZ		 658 spin_unlock_irqrestore(&priv->driver_lock, flags);
659 adapter->wakeup_tries++;
660 priv->hw_wakeup_firmware(priv);
661 continue;
d1d10d78
AK		 662 } else {
663 spin_unlock_irqrestore(&priv->driver_lock, flags);
132ff4e5 664 }
132ff4e5
BZ		 665
666 if (adapter->ps_state == PS_SLEEP)
667 continue;
668
669 if (!priv->btmrvl_dev.tx_dnld_rdy)
670 continue;
671
672 skb = skb_dequeue(&adapter->tx_queue);
673 if (skb) {
674 if (btmrvl_tx_pkt(priv, skb))
675 priv->btmrvl_dev.hcidev->stat.err_tx++;
676 else
4271e08d 677 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
132ff4e5
BZ		 678
679 kfree_skb(skb);
680 }
681 }
682
132ff4e5
BZ		 683 return 0;
684}
685
64061607 686int btmrvl_register_hdev(struct btmrvl_private *priv)
132ff4e5
BZ		 687{
688 struct hci_dev *hdev = NULL;
132ff4e5
BZ		 689 int ret;
690
132ff4e5
BZ		 691 hdev = hci_alloc_dev();
692 if (!hdev) {
693 BT_ERR("Can not allocate HCI device");
694 goto err_hdev;
695 }
696
132ff4e5 697 priv->btmrvl_dev.hcidev = hdev;
155961e8 698 hci_set_drvdata(hdev, priv);
132ff4e5 699
e93ac9c0
MH		 700 hdev->bus = HCI_SDIO;
701 hdev->open = btmrvl_open;
132ff4e5
BZ		 702 hdev->close = btmrvl_close;
703 hdev->flush = btmrvl_flush;
e93ac9c0 704 hdev->send = btmrvl_send_frame;
4b245722 705 hdev->setup = btmrvl_setup;
27b869f5 706 hdev->set_bdaddr = btmrvl_set_bdaddr;
64061607 707
f120c6b6
BZ		 708 hdev->dev_type = priv->btmrvl_dev.dev_type;
709
132ff4e5
BZ		 710 ret = hci_register_dev(hdev);
711 if (ret < 0) {
712 BT_ERR("Can not register HCI device");
713 goto err_hci_register_dev;
714 }
715
fb784f05
BZ		 716#ifdef CONFIG_DEBUG_FS
717 btmrvl_debugfs_init(hdev);
718#endif
719
64061607 720 return 0;
132ff4e5
BZ		 721
722err_hci_register_dev:
132ff4e5
BZ		 723 hci_free_dev(hdev);
724
725err_hdev:
64061607
BZ		 726 /* Stop the thread servicing the interrupts */
727 kthread_stop(priv->main_thread.task);
728
132ff4e5 729 btmrvl_free_adapter(priv);
64061607
BZ		 730 kfree(priv);
731
732 return -ENOMEM;
733}
734EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
735
736struct btmrvl_private *btmrvl_add_card(void *card)
737{
738 struct btmrvl_private *priv;
739
740 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
741 if (!priv) {
742 BT_ERR("Can not allocate priv");
743 goto err_priv;
744 }
745
746 priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
747 if (!priv->adapter) {
748 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
749 goto err_adapter;
750 }
751
752 btmrvl_init_adapter(priv);
753
754 BT_DBG("Starting kthread...");
755 priv->main_thread.priv = priv;
756 spin_lock_init(&priv->driver_lock);
757
758 init_waitqueue_head(&priv->main_thread.wait_q);
759 priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
760 &priv->main_thread, "btmrvl_main_service");
8500d791
AP		 761 if (IS_ERR(priv->main_thread.task))
762 goto err_thread;
64061607
BZ		 763
764 priv->btmrvl_dev.card = card;
765 priv->btmrvl_dev.tx_dnld_rdy = true;
766
767 return priv;
132ff4e5 768
8500d791
AP		 769err_thread:
770 btmrvl_free_adapter(priv);
771
132ff4e5
BZ		 772err_adapter:
773 kfree(priv);
774
775err_priv:
132ff4e5
BZ		 776 return NULL;
777}
778EXPORT_SYMBOL_GPL(btmrvl_add_card);
779
780int btmrvl_remove_card(struct btmrvl_private *priv)
781{
782 struct hci_dev *hdev;
783
132ff4e5
BZ		 784 hdev = priv->btmrvl_dev.hcidev;
785
786 wake_up_interruptible(&priv->adapter->cmd_wait_q);
396e04f4 787 wake_up_interruptible(&priv->adapter->event_hs_wait_q);
132ff4e5
BZ		 788
789 kthread_stop(priv->main_thread.task);
790
fb784f05
BZ		 791#ifdef CONFIG_DEBUG_FS
792 btmrvl_debugfs_remove(hdev);
793#endif
794
132ff4e5
BZ		 795 hci_unregister_dev(hdev);
796
797 hci_free_dev(hdev);
798
799 priv->btmrvl_dev.hcidev = NULL;
800
801 btmrvl_free_adapter(priv);
802
803 kfree(priv);
804
132ff4e5
BZ		 805 return 0;
806}
807EXPORT_SYMBOL_GPL(btmrvl_remove_card);
808
809MODULE_AUTHOR("Marvell International Ltd.");
9666fb35 810MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
132ff4e5
BZ		 811MODULE_VERSION(VERSION);
812MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)