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> | |
25 | ||
26 | #include "btmrvl_drv.h" | |
0d367408 | 27 | #include "btmrvl_sdio.h" |
132ff4e5 BZ |
28 | |
29 | #define VERSION "1.0" | |
30 | ||
31 | /* | |
32 | * This function is called by interface specific interrupt handler. | |
33 | * It updates Power Save & Host Sleep states, and wakes up the main | |
34 | * thread. | |
35 | */ | |
36 | void btmrvl_interrupt(struct btmrvl_private *priv) | |
37 | { | |
132ff4e5 BZ |
38 | priv->adapter->ps_state = PS_AWAKE; |
39 | ||
40 | priv->adapter->wakeup_tries = 0; | |
41 | ||
42 | priv->adapter->int_count++; | |
43 | ||
44 | wake_up_interruptible(&priv->main_thread.wait_q); | |
132ff4e5 BZ |
45 | } |
46 | EXPORT_SYMBOL_GPL(btmrvl_interrupt); | |
47 | ||
ea1e76a3 | 48 | bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) |
132ff4e5 | 49 | { |
4271e08d | 50 | struct hci_event_hdr *hdr = (void *) skb->data; |
132ff4e5 | 51 | |
132ff4e5 | 52 | if (hdr->evt == HCI_EV_CMD_COMPLETE) { |
2c2453f3 | 53 | struct hci_ev_cmd_complete *ec; |
3e4543ab | 54 | u16 opcode; |
2c2453f3 | 55 | |
4271e08d | 56 | ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); |
132ff4e5 | 57 | opcode = __le16_to_cpu(ec->opcode); |
ea1e76a3 | 58 | |
c037874c | 59 | if (priv->btmrvl_dev.sendcmdflag) { |
132ff4e5 BZ |
60 | priv->btmrvl_dev.sendcmdflag = false; |
61 | priv->adapter->cmd_complete = true; | |
62 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
ea1e76a3 | 63 | |
d986b4a6 AK |
64 | if (hci_opcode_ogf(opcode) == 0x3F) { |
65 | BT_DBG("vendor event skipped: opcode=%#4.4x", | |
66 | opcode); | |
67 | kfree_skb(skb); | |
68 | return false; | |
69 | } | |
ea1e76a3 | 70 | } |
132ff4e5 | 71 | } |
ea1e76a3 AE |
72 | |
73 | return true; | |
132ff4e5 BZ |
74 | } |
75 | EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); | |
76 | ||
77 | int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb) | |
78 | { | |
79 | struct btmrvl_adapter *adapter = priv->adapter; | |
132ff4e5 | 80 | struct btmrvl_event *event; |
31f085fe | 81 | int ret = 0; |
132ff4e5 | 82 | |
132ff4e5 BZ |
83 | event = (struct btmrvl_event *) skb->data; |
84 | if (event->ec != 0xff) { | |
85 | BT_DBG("Not Marvell Event=%x", event->ec); | |
86 | ret = -EINVAL; | |
87 | goto exit; | |
88 | } | |
89 | ||
90 | switch (event->data[0]) { | |
3e4543ab | 91 | case BT_EVENT_AUTO_SLEEP_MODE: |
132ff4e5 BZ |
92 | if (!event->data[2]) { |
93 | if (event->data[1] == BT_PS_ENABLE) | |
94 | adapter->psmode = 1; | |
95 | else | |
96 | adapter->psmode = 0; | |
97 | BT_DBG("PS Mode:%s", | |
98 | (adapter->psmode) ? "Enable" : "Disable"); | |
99 | } else { | |
100 | BT_DBG("PS Mode command failed"); | |
101 | } | |
102 | break; | |
103 | ||
3e4543ab | 104 | case BT_EVENT_HOST_SLEEP_CONFIG: |
132ff4e5 BZ |
105 | if (!event->data[3]) |
106 | BT_DBG("gpio=%x, gap=%x", event->data[1], | |
4271e08d | 107 | event->data[2]); |
132ff4e5 BZ |
108 | else |
109 | BT_DBG("HSCFG command failed"); | |
110 | break; | |
111 | ||
3e4543ab | 112 | case BT_EVENT_HOST_SLEEP_ENABLE: |
132ff4e5 BZ |
113 | if (!event->data[1]) { |
114 | adapter->hs_state = HS_ACTIVATED; | |
115 | if (adapter->psmode) | |
116 | adapter->ps_state = PS_SLEEP; | |
132ff4e5 BZ |
117 | BT_DBG("HS ACTIVATED!"); |
118 | } else { | |
119 | BT_DBG("HS Enable failed"); | |
120 | } | |
121 | break; | |
122 | ||
3e4543ab | 123 | case BT_EVENT_MODULE_CFG_REQ: |
4271e08d MH |
124 | if (priv->btmrvl_dev.sendcmdflag && |
125 | event->data[1] == MODULE_BRINGUP_REQ) { | |
903c8437 BZ |
126 | BT_DBG("EVENT:%s", |
127 | ((event->data[2] == MODULE_BROUGHT_UP) || | |
128 | (event->data[2] == MODULE_ALREADY_UP)) ? | |
129 | "Bring-up succeed" : "Bring-up failed"); | |
f120c6b6 | 130 | |
8f1e1742 DV |
131 | if (event->length > 3 && event->data[3]) |
132 | priv->btmrvl_dev.dev_type = HCI_AMP; | |
f120c6b6 BZ |
133 | else |
134 | priv->btmrvl_dev.dev_type = HCI_BREDR; | |
135 | ||
136 | BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type); | |
4271e08d MH |
137 | } else if (priv->btmrvl_dev.sendcmdflag && |
138 | event->data[1] == MODULE_SHUTDOWN_REQ) { | |
132ff4e5 BZ |
139 | BT_DBG("EVENT:%s", (event->data[2]) ? |
140 | "Shutdown failed" : "Shutdown succeed"); | |
141 | } else { | |
142 | BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP"); | |
143 | ret = -EINVAL; | |
144 | } | |
145 | break; | |
146 | ||
147 | case BT_EVENT_POWER_STATE: | |
148 | if (event->data[1] == BT_PS_SLEEP) | |
149 | adapter->ps_state = PS_SLEEP; | |
150 | BT_DBG("EVENT:%s", | |
151 | (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE"); | |
152 | break; | |
153 | ||
154 | default: | |
155 | BT_DBG("Unknown Event=%d", event->data[0]); | |
156 | ret = -EINVAL; | |
157 | break; | |
158 | } | |
159 | ||
160 | exit: | |
161 | if (!ret) | |
162 | kfree_skb(skb); | |
163 | ||
132ff4e5 BZ |
164 | return ret; |
165 | } | |
166 | EXPORT_SYMBOL_GPL(btmrvl_process_event); | |
167 | ||
3e4543ab | 168 | static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode, |
c037874c | 169 | const void *param, u8 len) |
132ff4e5 | 170 | { |
4271e08d | 171 | struct sk_buff *skb; |
7d5b400c | 172 | struct hci_command_hdr *hdr; |
132ff4e5 | 173 | |
7d5b400c | 174 | skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC); |
132ff4e5 BZ |
175 | if (skb == NULL) { |
176 | BT_ERR("No free skb"); | |
9374253f | 177 | return -ENOMEM; |
132ff4e5 BZ |
178 | } |
179 | ||
7d5b400c | 180 | hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE); |
3e4543ab | 181 | hdr->opcode = cpu_to_le16(opcode); |
7d5b400c | 182 | hdr->plen = len; |
c037874c AK |
183 | |
184 | if (len) | |
7d5b400c | 185 | memcpy(skb_put(skb, len), param, len); |
132ff4e5 BZ |
186 | |
187 | bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT; | |
188 | ||
132ff4e5 BZ |
189 | skb_queue_head(&priv->adapter->tx_queue, skb); |
190 | ||
191 | priv->btmrvl_dev.sendcmdflag = true; | |
192 | ||
193 | priv->adapter->cmd_complete = false; | |
194 | ||
132ff4e5 BZ |
195 | wake_up_interruptible(&priv->main_thread.wait_q); |
196 | ||
4271e08d MH |
197 | if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q, |
198 | priv->adapter->cmd_complete, | |
c037874c AK |
199 | msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) |
200 | return -ETIMEDOUT; | |
201 | ||
202 | return 0; | |
203 | } | |
132ff4e5 | 204 | |
7125df53 | 205 | int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd) |
c037874c AK |
206 | { |
207 | int ret; | |
208 | ||
209 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1); | |
210 | if (ret) | |
211 | BT_ERR("module_cfg_cmd(%x) failed\n", subcmd); | |
132ff4e5 | 212 | |
132ff4e5 BZ |
213 | return ret; |
214 | } | |
215 | EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd); | |
216 | ||
2a8ff611 AK |
217 | int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv) |
218 | { | |
c037874c AK |
219 | int ret; |
220 | u8 param[2]; | |
2a8ff611 | 221 | |
c037874c AK |
222 | param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8; |
223 | param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff); | |
2a8ff611 | 224 | |
c037874c AK |
225 | BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x", |
226 | param[0], param[1]); | |
2a8ff611 | 227 | |
c037874c AK |
228 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2); |
229 | if (ret) | |
230 | BT_ERR("HSCFG command failed\n"); | |
2a8ff611 | 231 | |
c037874c | 232 | return ret; |
2a8ff611 AK |
233 | } |
234 | EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd); | |
235 | ||
32fd6398 AK |
236 | int btmrvl_enable_ps(struct btmrvl_private *priv) |
237 | { | |
c037874c AK |
238 | int ret; |
239 | u8 param; | |
32fd6398 AK |
240 | |
241 | if (priv->btmrvl_dev.psmode) | |
c037874c | 242 | param = BT_PS_ENABLE; |
32fd6398 | 243 | else |
c037874c | 244 | param = BT_PS_DISABLE; |
32fd6398 | 245 | |
c037874c AK |
246 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, ¶m, 1); |
247 | if (ret) | |
248 | BT_ERR("PSMODE command failed\n"); | |
32fd6398 AK |
249 | |
250 | return 0; | |
251 | } | |
252 | EXPORT_SYMBOL_GPL(btmrvl_enable_ps); | |
253 | ||
ba54a16f | 254 | int btmrvl_enable_hs(struct btmrvl_private *priv) |
132ff4e5 | 255 | { |
c037874c | 256 | int ret; |
132ff4e5 | 257 | |
c037874c AK |
258 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0); |
259 | if (ret) | |
260 | BT_ERR("Host sleep enable command failed\n"); | |
132ff4e5 | 261 | |
132ff4e5 BZ |
262 | return ret; |
263 | } | |
ba54a16f | 264 | EXPORT_SYMBOL_GPL(btmrvl_enable_hs); |
132ff4e5 BZ |
265 | |
266 | int btmrvl_prepare_command(struct btmrvl_private *priv) | |
267 | { | |
9374253f | 268 | int ret = 0; |
132ff4e5 BZ |
269 | |
270 | if (priv->btmrvl_dev.hscfgcmd) { | |
271 | priv->btmrvl_dev.hscfgcmd = 0; | |
2a8ff611 | 272 | btmrvl_send_hscfg_cmd(priv); |
132ff4e5 BZ |
273 | } |
274 | ||
275 | if (priv->btmrvl_dev.pscmd) { | |
276 | priv->btmrvl_dev.pscmd = 0; | |
32fd6398 | 277 | btmrvl_enable_ps(priv); |
132ff4e5 BZ |
278 | } |
279 | ||
280 | if (priv->btmrvl_dev.hscmd) { | |
281 | priv->btmrvl_dev.hscmd = 0; | |
282 | ||
283 | if (priv->btmrvl_dev.hsmode) { | |
284 | ret = btmrvl_enable_hs(priv); | |
285 | } else { | |
286 | ret = priv->hw_wakeup_firmware(priv); | |
287 | priv->adapter->hs_state = HS_DEACTIVATED; | |
288 | } | |
289 | } | |
290 | ||
132ff4e5 BZ |
291 | return ret; |
292 | } | |
293 | ||
294 | static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb) | |
295 | { | |
9374253f | 296 | int ret = 0; |
132ff4e5 | 297 | |
9374253f | 298 | if (!skb || !skb->data) |
132ff4e5 | 299 | return -EINVAL; |
132ff4e5 BZ |
300 | |
301 | if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) { | |
302 | BT_ERR("Tx Error: Bad skb length %d : %d", | |
4271e08d | 303 | skb->len, BTM_UPLD_SIZE); |
132ff4e5 BZ |
304 | return -EINVAL; |
305 | } | |
306 | ||
307 | if (skb_headroom(skb) < BTM_HEADER_LEN) { | |
308 | struct sk_buff *tmp = skb; | |
309 | ||
310 | skb = skb_realloc_headroom(skb, BTM_HEADER_LEN); | |
311 | if (!skb) { | |
312 | BT_ERR("Tx Error: realloc_headroom failed %d", | |
313 | BTM_HEADER_LEN); | |
314 | skb = tmp; | |
132ff4e5 BZ |
315 | return -EINVAL; |
316 | } | |
317 | ||
318 | kfree_skb(tmp); | |
319 | } | |
320 | ||
321 | skb_push(skb, BTM_HEADER_LEN); | |
322 | ||
323 | /* header type: byte[3] | |
324 | * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor | |
325 | * header length: byte[2][1][0] | |
326 | */ | |
327 | ||
328 | skb->data[0] = (skb->len & 0x0000ff); | |
329 | skb->data[1] = (skb->len & 0x00ff00) >> 8; | |
330 | skb->data[2] = (skb->len & 0xff0000) >> 16; | |
331 | skb->data[3] = bt_cb(skb)->pkt_type; | |
332 | ||
333 | if (priv->hw_host_to_card) | |
334 | ret = priv->hw_host_to_card(priv, skb->data, skb->len); | |
335 | ||
132ff4e5 BZ |
336 | return ret; |
337 | } | |
338 | ||
339 | static void btmrvl_init_adapter(struct btmrvl_private *priv) | |
340 | { | |
0d367408 BZ |
341 | int buf_size; |
342 | ||
132ff4e5 BZ |
343 | skb_queue_head_init(&priv->adapter->tx_queue); |
344 | ||
345 | priv->adapter->ps_state = PS_AWAKE; | |
346 | ||
0d367408 BZ |
347 | buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN); |
348 | priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL); | |
349 | if (!priv->adapter->hw_regs_buf) { | |
350 | priv->adapter->hw_regs = NULL; | |
351 | BT_ERR("Unable to allocate buffer for hw_regs."); | |
352 | } else { | |
353 | priv->adapter->hw_regs = | |
354 | (u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf, | |
355 | BTSDIO_DMA_ALIGN); | |
356 | BT_DBG("hw_regs_buf=%p hw_regs=%p", | |
357 | priv->adapter->hw_regs_buf, priv->adapter->hw_regs); | |
358 | } | |
359 | ||
132ff4e5 | 360 | init_waitqueue_head(&priv->adapter->cmd_wait_q); |
132ff4e5 BZ |
361 | } |
362 | ||
363 | static void btmrvl_free_adapter(struct btmrvl_private *priv) | |
364 | { | |
132ff4e5 BZ |
365 | skb_queue_purge(&priv->adapter->tx_queue); |
366 | ||
0d367408 | 367 | kfree(priv->adapter->hw_regs_buf); |
132ff4e5 BZ |
368 | kfree(priv->adapter); |
369 | ||
370 | priv->adapter = NULL; | |
132ff4e5 BZ |
371 | } |
372 | ||
7bd8f09f | 373 | static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
132ff4e5 | 374 | { |
7648d28f | 375 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 376 | |
9374253f | 377 | BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len); |
132ff4e5 | 378 | |
132ff4e5 BZ |
379 | if (!test_bit(HCI_RUNNING, &hdev->flags)) { |
380 | BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags); | |
381 | print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET, | |
4271e08d | 382 | skb->data, skb->len); |
132ff4e5 BZ |
383 | return -EBUSY; |
384 | } | |
385 | ||
386 | switch (bt_cb(skb)->pkt_type) { | |
387 | case HCI_COMMAND_PKT: | |
388 | hdev->stat.cmd_tx++; | |
389 | break; | |
390 | ||
391 | case HCI_ACLDATA_PKT: | |
392 | hdev->stat.acl_tx++; | |
393 | break; | |
394 | ||
395 | case HCI_SCODATA_PKT: | |
396 | hdev->stat.sco_tx++; | |
397 | break; | |
398 | } | |
399 | ||
400 | skb_queue_tail(&priv->adapter->tx_queue, skb); | |
401 | ||
402 | wake_up_interruptible(&priv->main_thread.wait_q); | |
403 | ||
132ff4e5 BZ |
404 | return 0; |
405 | } | |
406 | ||
407 | static int btmrvl_flush(struct hci_dev *hdev) | |
408 | { | |
155961e8 | 409 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 410 | |
132ff4e5 BZ |
411 | skb_queue_purge(&priv->adapter->tx_queue); |
412 | ||
132ff4e5 BZ |
413 | return 0; |
414 | } | |
415 | ||
416 | static int btmrvl_close(struct hci_dev *hdev) | |
417 | { | |
155961e8 | 418 | struct btmrvl_private *priv = hci_get_drvdata(hdev); |
132ff4e5 | 419 | |
9374253f | 420 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
132ff4e5 | 421 | return 0; |
132ff4e5 BZ |
422 | |
423 | skb_queue_purge(&priv->adapter->tx_queue); | |
424 | ||
132ff4e5 BZ |
425 | return 0; |
426 | } | |
427 | ||
428 | static int btmrvl_open(struct hci_dev *hdev) | |
429 | { | |
132ff4e5 BZ |
430 | set_bit(HCI_RUNNING, &hdev->flags); |
431 | ||
132ff4e5 BZ |
432 | return 0; |
433 | } | |
434 | ||
433a9389 | 435 | static int btmrvl_download_cal_data(struct btmrvl_private *priv, |
8a4934f1 | 436 | u8 *data, int len) |
2cc86890 | 437 | { |
8a4934f1 | 438 | int ret; |
2cc86890 AK |
439 | |
440 | data[0] = 0x00; | |
441 | data[1] = 0x00; | |
442 | data[2] = 0x00; | |
8a4934f1 | 443 | data[3] = len; |
2cc86890 AK |
444 | |
445 | print_hex_dump_bytes("Calibration data: ", | |
8a4934f1 | 446 | DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len); |
2cc86890 AK |
447 | |
448 | ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data, | |
8a4934f1 | 449 | BT_CAL_HDR_LEN + len); |
2cc86890 AK |
450 | if (ret) |
451 | BT_ERR("Failed to download caibration data\n"); | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
433a9389 | 456 | static int btmrvl_cal_data_dt(struct btmrvl_private *priv) |
2cc86890 | 457 | { |
433a9389 | 458 | struct device_node *dt_node; |
8a4934f1 | 459 | u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; |
433a9389 BZ |
460 | const char name[] = "btmrvl_caldata"; |
461 | const char property[] = "btmrvl,caldata"; | |
2cc86890 AK |
462 | int ret; |
463 | ||
433a9389 BZ |
464 | dt_node = of_find_node_by_name(NULL, name); |
465 | if (!dt_node) | |
466 | return -ENODEV; | |
467 | ||
8a4934f1 BZ |
468 | ret = of_property_read_u8_array(dt_node, property, |
469 | cal_data + BT_CAL_HDR_LEN, | |
470 | BT_CAL_DATA_SIZE); | |
2cc86890 AK |
471 | if (ret) |
472 | return ret; | |
473 | ||
433a9389 | 474 | BT_DBG("Use cal data from device tree"); |
8a4934f1 | 475 | ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE); |
2cc86890 | 476 | if (ret) { |
433a9389 | 477 | BT_ERR("Fail to download calibrate data"); |
2cc86890 AK |
478 | return ret; |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
4b245722 AK |
484 | static int btmrvl_setup(struct hci_dev *hdev) |
485 | { | |
486 | struct btmrvl_private *priv = hci_get_drvdata(hdev); | |
487 | ||
488 | btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ); | |
489 | ||
433a9389 | 490 | btmrvl_cal_data_dt(priv); |
2cc86890 | 491 | |
4b245722 AK |
492 | priv->btmrvl_dev.psmode = 1; |
493 | btmrvl_enable_ps(priv); | |
494 | ||
495 | priv->btmrvl_dev.gpio_gap = 0xffff; | |
496 | btmrvl_send_hscfg_cmd(priv); | |
497 | ||
498 | return 0; | |
499 | } | |
500 | ||
132ff4e5 BZ |
501 | /* |
502 | * This function handles the event generated by firmware, rx data | |
503 | * received from firmware, and tx data sent from kernel. | |
504 | */ | |
505 | static int btmrvl_service_main_thread(void *data) | |
506 | { | |
507 | struct btmrvl_thread *thread = data; | |
508 | struct btmrvl_private *priv = thread->priv; | |
509 | struct btmrvl_adapter *adapter = priv->adapter; | |
510 | wait_queue_t wait; | |
511 | struct sk_buff *skb; | |
512 | ulong flags; | |
513 | ||
132ff4e5 BZ |
514 | init_waitqueue_entry(&wait, current); |
515 | ||
132ff4e5 BZ |
516 | for (;;) { |
517 | add_wait_queue(&thread->wait_q, &wait); | |
518 | ||
519 | set_current_state(TASK_INTERRUPTIBLE); | |
ea05fea9 DD |
520 | if (kthread_should_stop()) { |
521 | BT_DBG("main_thread: break from main thread"); | |
522 | break; | |
523 | } | |
132ff4e5 BZ |
524 | |
525 | if (adapter->wakeup_tries || | |
4271e08d MH |
526 | ((!adapter->int_count) && |
527 | (!priv->btmrvl_dev.tx_dnld_rdy || | |
528 | skb_queue_empty(&adapter->tx_queue)))) { | |
132ff4e5 BZ |
529 | BT_DBG("main_thread is sleeping..."); |
530 | schedule(); | |
531 | } | |
532 | ||
533 | set_current_state(TASK_RUNNING); | |
534 | ||
535 | remove_wait_queue(&thread->wait_q, &wait); | |
536 | ||
537 | BT_DBG("main_thread woke up"); | |
538 | ||
132ff4e5 BZ |
539 | spin_lock_irqsave(&priv->driver_lock, flags); |
540 | if (adapter->int_count) { | |
541 | adapter->int_count = 0; | |
d1d10d78 AK |
542 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
543 | priv->hw_process_int_status(priv); | |
4271e08d MH |
544 | } else if (adapter->ps_state == PS_SLEEP && |
545 | !skb_queue_empty(&adapter->tx_queue)) { | |
132ff4e5 BZ |
546 | spin_unlock_irqrestore(&priv->driver_lock, flags); |
547 | adapter->wakeup_tries++; | |
548 | priv->hw_wakeup_firmware(priv); | |
549 | continue; | |
d1d10d78 AK |
550 | } else { |
551 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
132ff4e5 | 552 | } |
132ff4e5 BZ |
553 | |
554 | if (adapter->ps_state == PS_SLEEP) | |
555 | continue; | |
556 | ||
557 | if (!priv->btmrvl_dev.tx_dnld_rdy) | |
558 | continue; | |
559 | ||
560 | skb = skb_dequeue(&adapter->tx_queue); | |
561 | if (skb) { | |
562 | if (btmrvl_tx_pkt(priv, skb)) | |
563 | priv->btmrvl_dev.hcidev->stat.err_tx++; | |
564 | else | |
4271e08d | 565 | priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len; |
132ff4e5 BZ |
566 | |
567 | kfree_skb(skb); | |
568 | } | |
569 | } | |
570 | ||
132ff4e5 BZ |
571 | return 0; |
572 | } | |
573 | ||
64061607 | 574 | int btmrvl_register_hdev(struct btmrvl_private *priv) |
132ff4e5 BZ |
575 | { |
576 | struct hci_dev *hdev = NULL; | |
132ff4e5 BZ |
577 | int ret; |
578 | ||
132ff4e5 BZ |
579 | hdev = hci_alloc_dev(); |
580 | if (!hdev) { | |
581 | BT_ERR("Can not allocate HCI device"); | |
582 | goto err_hdev; | |
583 | } | |
584 | ||
132ff4e5 | 585 | priv->btmrvl_dev.hcidev = hdev; |
155961e8 | 586 | hci_set_drvdata(hdev, priv); |
132ff4e5 | 587 | |
e93ac9c0 MH |
588 | hdev->bus = HCI_SDIO; |
589 | hdev->open = btmrvl_open; | |
132ff4e5 BZ |
590 | hdev->close = btmrvl_close; |
591 | hdev->flush = btmrvl_flush; | |
e93ac9c0 | 592 | hdev->send = btmrvl_send_frame; |
4b245722 | 593 | hdev->setup = btmrvl_setup; |
64061607 | 594 | |
f120c6b6 BZ |
595 | hdev->dev_type = priv->btmrvl_dev.dev_type; |
596 | ||
132ff4e5 BZ |
597 | ret = hci_register_dev(hdev); |
598 | if (ret < 0) { | |
599 | BT_ERR("Can not register HCI device"); | |
600 | goto err_hci_register_dev; | |
601 | } | |
602 | ||
fb784f05 BZ |
603 | #ifdef CONFIG_DEBUG_FS |
604 | btmrvl_debugfs_init(hdev); | |
605 | #endif | |
606 | ||
64061607 | 607 | return 0; |
132ff4e5 BZ |
608 | |
609 | err_hci_register_dev: | |
132ff4e5 BZ |
610 | hci_free_dev(hdev); |
611 | ||
612 | err_hdev: | |
64061607 BZ |
613 | /* Stop the thread servicing the interrupts */ |
614 | kthread_stop(priv->main_thread.task); | |
615 | ||
132ff4e5 | 616 | btmrvl_free_adapter(priv); |
64061607 BZ |
617 | kfree(priv); |
618 | ||
619 | return -ENOMEM; | |
620 | } | |
621 | EXPORT_SYMBOL_GPL(btmrvl_register_hdev); | |
622 | ||
623 | struct btmrvl_private *btmrvl_add_card(void *card) | |
624 | { | |
625 | struct btmrvl_private *priv; | |
626 | ||
627 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
628 | if (!priv) { | |
629 | BT_ERR("Can not allocate priv"); | |
630 | goto err_priv; | |
631 | } | |
632 | ||
633 | priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL); | |
634 | if (!priv->adapter) { | |
635 | BT_ERR("Allocate buffer for btmrvl_adapter failed!"); | |
636 | goto err_adapter; | |
637 | } | |
638 | ||
639 | btmrvl_init_adapter(priv); | |
640 | ||
641 | BT_DBG("Starting kthread..."); | |
642 | priv->main_thread.priv = priv; | |
643 | spin_lock_init(&priv->driver_lock); | |
644 | ||
645 | init_waitqueue_head(&priv->main_thread.wait_q); | |
646 | priv->main_thread.task = kthread_run(btmrvl_service_main_thread, | |
647 | &priv->main_thread, "btmrvl_main_service"); | |
648 | ||
649 | priv->btmrvl_dev.card = card; | |
650 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
651 | ||
652 | return priv; | |
132ff4e5 BZ |
653 | |
654 | err_adapter: | |
655 | kfree(priv); | |
656 | ||
657 | err_priv: | |
132ff4e5 BZ |
658 | return NULL; |
659 | } | |
660 | EXPORT_SYMBOL_GPL(btmrvl_add_card); | |
661 | ||
662 | int btmrvl_remove_card(struct btmrvl_private *priv) | |
663 | { | |
664 | struct hci_dev *hdev; | |
665 | ||
132ff4e5 BZ |
666 | hdev = priv->btmrvl_dev.hcidev; |
667 | ||
668 | wake_up_interruptible(&priv->adapter->cmd_wait_q); | |
669 | ||
670 | kthread_stop(priv->main_thread.task); | |
671 | ||
fb784f05 BZ |
672 | #ifdef CONFIG_DEBUG_FS |
673 | btmrvl_debugfs_remove(hdev); | |
674 | #endif | |
675 | ||
132ff4e5 BZ |
676 | hci_unregister_dev(hdev); |
677 | ||
678 | hci_free_dev(hdev); | |
679 | ||
680 | priv->btmrvl_dev.hcidev = NULL; | |
681 | ||
682 | btmrvl_free_adapter(priv); | |
683 | ||
684 | kfree(priv); | |
685 | ||
132ff4e5 BZ |
686 | return 0; |
687 | } | |
688 | EXPORT_SYMBOL_GPL(btmrvl_remove_card); | |
689 | ||
690 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 691 | MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION); |
132ff4e5 BZ |
692 | MODULE_VERSION(VERSION); |
693 | MODULE_LICENSE("GPL v2"); |