blob: b8f72f2c34e8df514864042ff6b739869ed85aec [file] [log] [blame]
Kalle Valo5e3dd152013-06-12 20:52:10 +03001/*
2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <linux/module.h>
19#include <linux/firmware.h>
20
21#include "core.h"
22#include "mac.h"
23#include "htc.h"
24#include "hif.h"
25#include "wmi.h"
26#include "bmi.h"
27#include "debug.h"
28#include "htt.h"
29
30unsigned int ath10k_debug_mask;
31static bool uart_print;
32static unsigned int ath10k_p2p;
33module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
34module_param(uart_print, bool, 0644);
35module_param_named(p2p, ath10k_p2p, uint, 0644);
36MODULE_PARM_DESC(debug_mask, "Debugging mask");
37MODULE_PARM_DESC(uart_print, "Uart target debugging");
38MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
39
40static const struct ath10k_hw_params ath10k_hw_params_list[] = {
41 {
Kalle Valo5e3dd152013-06-12 20:52:10 +030042 .id = QCA988X_HW_2_0_VERSION,
43 .name = "qca988x hw2.0",
44 .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
45 .fw = {
46 .dir = QCA988X_HW_2_0_FW_DIR,
47 .fw = QCA988X_HW_2_0_FW_FILE,
48 .otp = QCA988X_HW_2_0_OTP_FILE,
49 .board = QCA988X_HW_2_0_BOARD_DATA_FILE,
50 },
51 },
52};
53
54static void ath10k_send_suspend_complete(struct ath10k *ar)
55{
Kalle Valoeffea962013-09-08 17:55:44 +030056 ath10k_dbg(ATH10K_DBG_BOOT, "boot suspend complete\n");
Kalle Valo5e3dd152013-06-12 20:52:10 +030057
58 ar->is_target_paused = true;
59 wake_up(&ar->event_queue);
60}
61
Kalle Valo5e3dd152013-06-12 20:52:10 +030062static int ath10k_init_connect_htc(struct ath10k *ar)
63{
64 int status;
65
66 status = ath10k_wmi_connect_htc_service(ar);
67 if (status)
68 goto conn_fail;
69
70 /* Start HTC */
Michal Kaziorcd003fa2013-07-05 16:15:13 +030071 status = ath10k_htc_start(&ar->htc);
Kalle Valo5e3dd152013-06-12 20:52:10 +030072 if (status)
73 goto conn_fail;
74
75 /* Wait for WMI event to be ready */
76 status = ath10k_wmi_wait_for_service_ready(ar);
77 if (status <= 0) {
78 ath10k_warn("wmi service ready event not received");
79 status = -ETIMEDOUT;
80 goto timeout;
81 }
82
Kalle Valoeffea962013-09-08 17:55:44 +030083 ath10k_dbg(ATH10K_DBG_BOOT, "boot wmi ready\n");
Kalle Valo5e3dd152013-06-12 20:52:10 +030084 return 0;
85
86timeout:
Michal Kaziorcd003fa2013-07-05 16:15:13 +030087 ath10k_htc_stop(&ar->htc);
Kalle Valo5e3dd152013-06-12 20:52:10 +030088conn_fail:
89 return status;
90}
91
92static int ath10k_init_configure_target(struct ath10k *ar)
93{
94 u32 param_host;
95 int ret;
96
97 /* tell target which HTC version it is used*/
98 ret = ath10k_bmi_write32(ar, hi_app_host_interest,
99 HTC_PROTOCOL_VERSION);
100 if (ret) {
101 ath10k_err("settings HTC version failed\n");
102 return ret;
103 }
104
105 /* set the firmware mode to STA/IBSS/AP */
106 ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
107 if (ret) {
108 ath10k_err("setting firmware mode (1/2) failed\n");
109 return ret;
110 }
111
112 /* TODO following parameters need to be re-visited. */
113 /* num_device */
114 param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
115 /* Firmware mode */
116 /* FIXME: Why FW_MODE_AP ??.*/
117 param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
118 /* mac_addr_method */
119 param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
120 /* firmware_bridge */
121 param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
122 /* fwsubmode */
123 param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
124
125 ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
126 if (ret) {
127 ath10k_err("setting firmware mode (2/2) failed\n");
128 return ret;
129 }
130
131 /* We do all byte-swapping on the host */
132 ret = ath10k_bmi_write32(ar, hi_be, 0);
133 if (ret) {
134 ath10k_err("setting host CPU BE mode failed\n");
135 return ret;
136 }
137
138 /* FW descriptor/Data swap flags */
139 ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
140
141 if (ret) {
142 ath10k_err("setting FW data/desc swap flags failed\n");
143 return ret;
144 }
145
146 return 0;
147}
148
149static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
150 const char *dir,
151 const char *file)
152{
153 char filename[100];
154 const struct firmware *fw;
155 int ret;
156
157 if (file == NULL)
158 return ERR_PTR(-ENOENT);
159
160 if (dir == NULL)
161 dir = ".";
162
163 snprintf(filename, sizeof(filename), "%s/%s", dir, file);
164 ret = request_firmware(&fw, filename, ar->dev);
165 if (ret)
166 return ERR_PTR(ret);
167
168 return fw;
169}
170
Kalle Valo958df3a2013-09-27 19:55:01 +0300171static int ath10k_push_board_ext_data(struct ath10k *ar)
Kalle Valo5e3dd152013-06-12 20:52:10 +0300172{
173 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
174 u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
175 u32 board_ext_data_addr;
176 int ret;
177
178 ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
179 if (ret) {
180 ath10k_err("could not read board ext data addr (%d)\n", ret);
181 return ret;
182 }
183
Kalle Valob52b7682013-09-08 17:55:38 +0300184 ath10k_dbg(ATH10K_DBG_BOOT,
Kalle Valoeffea962013-09-08 17:55:44 +0300185 "boot push board extended data addr 0x%x\n",
Kalle Valo5e3dd152013-06-12 20:52:10 +0300186 board_ext_data_addr);
187
188 if (board_ext_data_addr == 0)
189 return 0;
190
Kalle Valo958df3a2013-09-27 19:55:01 +0300191 if (ar->board_len != (board_data_size + board_ext_data_size)) {
Kalle Valo5e3dd152013-06-12 20:52:10 +0300192 ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n",
Kalle Valo958df3a2013-09-27 19:55:01 +0300193 ar->board_len, board_data_size, board_ext_data_size);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300194 return -EINVAL;
195 }
196
197 ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
Kalle Valo958df3a2013-09-27 19:55:01 +0300198 ar->board_data + board_data_size,
Kalle Valo5e3dd152013-06-12 20:52:10 +0300199 board_ext_data_size);
200 if (ret) {
201 ath10k_err("could not write board ext data (%d)\n", ret);
202 return ret;
203 }
204
205 ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
206 (board_ext_data_size << 16) | 1);
207 if (ret) {
208 ath10k_err("could not write board ext data bit (%d)\n", ret);
209 return ret;
210 }
211
212 return 0;
213}
214
215static int ath10k_download_board_data(struct ath10k *ar)
216{
217 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
218 u32 address;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300219 int ret;
220
Kalle Valo958df3a2013-09-27 19:55:01 +0300221 ret = ath10k_push_board_ext_data(ar);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300222 if (ret) {
223 ath10k_err("could not push board ext data (%d)\n", ret);
224 goto exit;
225 }
226
227 ret = ath10k_bmi_read32(ar, hi_board_data, &address);
228 if (ret) {
229 ath10k_err("could not read board data addr (%d)\n", ret);
230 goto exit;
231 }
232
Kalle Valo958df3a2013-09-27 19:55:01 +0300233 ret = ath10k_bmi_write_memory(ar, address, ar->board_data,
234 min_t(u32, board_data_size,
235 ar->board_len));
Kalle Valo5e3dd152013-06-12 20:52:10 +0300236 if (ret) {
237 ath10k_err("could not write board data (%d)\n", ret);
238 goto exit;
239 }
240
241 ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
242 if (ret) {
243 ath10k_err("could not write board data bit (%d)\n", ret);
244 goto exit;
245 }
246
247exit:
Kalle Valo5e3dd152013-06-12 20:52:10 +0300248 return ret;
249}
250
251static int ath10k_download_and_run_otp(struct ath10k *ar)
252{
Michal Kazior29385052013-07-16 09:38:58 +0200253 u32 address = ar->hw_params.patch_load_addr;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300254 u32 exec_param;
255 int ret;
256
257 /* OTP is optional */
258
Kalle Valo958df3a2013-09-27 19:55:01 +0300259 if (!ar->otp_data || !ar->otp_len)
Kalle Valo5e3dd152013-06-12 20:52:10 +0300260 return 0;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300261
Kalle Valo958df3a2013-09-27 19:55:01 +0300262 ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300263 if (ret) {
264 ath10k_err("could not write otp (%d)\n", ret);
265 goto exit;
266 }
267
268 exec_param = 0;
269 ret = ath10k_bmi_execute(ar, address, &exec_param);
270 if (ret) {
271 ath10k_err("could not execute otp (%d)\n", ret);
272 goto exit;
273 }
274
275exit:
Kalle Valo5e3dd152013-06-12 20:52:10 +0300276 return ret;
277}
278
279static int ath10k_download_fw(struct ath10k *ar)
280{
Kalle Valo5e3dd152013-06-12 20:52:10 +0300281 u32 address;
282 int ret;
283
Kalle Valo5e3dd152013-06-12 20:52:10 +0300284 address = ar->hw_params.patch_load_addr;
285
Kalle Valo958df3a2013-09-27 19:55:01 +0300286 ret = ath10k_bmi_fast_download(ar, address, ar->firmware_data,
287 ar->firmware_len);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300288 if (ret) {
289 ath10k_err("could not write fw (%d)\n", ret);
290 goto exit;
291 }
292
293exit:
Michal Kazior29385052013-07-16 09:38:58 +0200294 return ret;
295}
296
297static void ath10k_core_free_firmware_files(struct ath10k *ar)
298{
Kalle Valo36527912013-09-27 19:54:55 +0300299 if (ar->board && !IS_ERR(ar->board))
300 release_firmware(ar->board);
Michal Kazior29385052013-07-16 09:38:58 +0200301
302 if (ar->otp && !IS_ERR(ar->otp))
303 release_firmware(ar->otp);
304
305 if (ar->firmware && !IS_ERR(ar->firmware))
306 release_firmware(ar->firmware);
307
Kalle Valo36527912013-09-27 19:54:55 +0300308 ar->board = NULL;
Kalle Valo958df3a2013-09-27 19:55:01 +0300309 ar->board_data = NULL;
310 ar->board_len = 0;
311
Michal Kazior29385052013-07-16 09:38:58 +0200312 ar->otp = NULL;
Kalle Valo958df3a2013-09-27 19:55:01 +0300313 ar->otp_data = NULL;
314 ar->otp_len = 0;
315
Michal Kazior29385052013-07-16 09:38:58 +0200316 ar->firmware = NULL;
Kalle Valo958df3a2013-09-27 19:55:01 +0300317 ar->firmware_data = NULL;
318 ar->firmware_len = 0;
Michal Kazior29385052013-07-16 09:38:58 +0200319}
320
321static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
322{
323 int ret = 0;
324
325 if (ar->hw_params.fw.fw == NULL) {
326 ath10k_err("firmware file not defined\n");
327 return -EINVAL;
328 }
329
330 if (ar->hw_params.fw.board == NULL) {
331 ath10k_err("board data file not defined");
332 return -EINVAL;
333 }
334
Kalle Valo36527912013-09-27 19:54:55 +0300335 ar->board = ath10k_fetch_fw_file(ar,
336 ar->hw_params.fw.dir,
337 ar->hw_params.fw.board);
338 if (IS_ERR(ar->board)) {
339 ret = PTR_ERR(ar->board);
Michal Kazior29385052013-07-16 09:38:58 +0200340 ath10k_err("could not fetch board data (%d)\n", ret);
341 goto err;
342 }
343
Kalle Valo958df3a2013-09-27 19:55:01 +0300344 ar->board_data = ar->board->data;
345 ar->board_len = ar->board->size;
346
Michal Kazior29385052013-07-16 09:38:58 +0200347 ar->firmware = ath10k_fetch_fw_file(ar,
348 ar->hw_params.fw.dir,
349 ar->hw_params.fw.fw);
350 if (IS_ERR(ar->firmware)) {
351 ret = PTR_ERR(ar->firmware);
352 ath10k_err("could not fetch firmware (%d)\n", ret);
353 goto err;
354 }
355
Kalle Valo958df3a2013-09-27 19:55:01 +0300356 ar->firmware_data = ar->firmware->data;
357 ar->firmware_len = ar->firmware->size;
358
Michal Kazior29385052013-07-16 09:38:58 +0200359 /* OTP may be undefined. If so, don't fetch it at all */
360 if (ar->hw_params.fw.otp == NULL)
361 return 0;
362
363 ar->otp = ath10k_fetch_fw_file(ar,
364 ar->hw_params.fw.dir,
365 ar->hw_params.fw.otp);
366 if (IS_ERR(ar->otp)) {
367 ret = PTR_ERR(ar->otp);
368 ath10k_err("could not fetch otp (%d)\n", ret);
369 goto err;
370 }
371
Kalle Valo958df3a2013-09-27 19:55:01 +0300372 ar->otp_data = ar->otp->data;
373 ar->otp_len = ar->otp->size;
374
Michal Kazior29385052013-07-16 09:38:58 +0200375 return 0;
376
377err:
378 ath10k_core_free_firmware_files(ar);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300379 return ret;
380}
381
382static int ath10k_init_download_firmware(struct ath10k *ar)
383{
384 int ret;
385
386 ret = ath10k_download_board_data(ar);
387 if (ret)
388 return ret;
389
390 ret = ath10k_download_and_run_otp(ar);
391 if (ret)
392 return ret;
393
394 ret = ath10k_download_fw(ar);
395 if (ret)
396 return ret;
397
398 return ret;
399}
400
401static int ath10k_init_uart(struct ath10k *ar)
402{
403 int ret;
404
405 /*
406 * Explicitly setting UART prints to zero as target turns it on
407 * based on scratch registers.
408 */
409 ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
410 if (ret) {
411 ath10k_warn("could not disable UART prints (%d)\n", ret);
412 return ret;
413 }
414
415 if (!uart_print) {
416 ath10k_info("UART prints disabled\n");
417 return 0;
418 }
419
420 ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
421 if (ret) {
422 ath10k_warn("could not enable UART prints (%d)\n", ret);
423 return ret;
424 }
425
426 ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
427 if (ret) {
428 ath10k_warn("could not enable UART prints (%d)\n", ret);
429 return ret;
430 }
431
Bartosz Markowski03fc1372013-09-03 14:24:02 +0200432 /* Set the UART baud rate to 19200. */
433 ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
434 if (ret) {
435 ath10k_warn("could not set the baud rate (%d)\n", ret);
436 return ret;
437 }
438
Kalle Valo5e3dd152013-06-12 20:52:10 +0300439 ath10k_info("UART prints enabled\n");
440 return 0;
441}
442
443static int ath10k_init_hw_params(struct ath10k *ar)
444{
445 const struct ath10k_hw_params *uninitialized_var(hw_params);
446 int i;
447
448 for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
449 hw_params = &ath10k_hw_params_list[i];
450
451 if (hw_params->id == ar->target_version)
452 break;
453 }
454
455 if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
456 ath10k_err("Unsupported hardware version: 0x%x\n",
457 ar->target_version);
458 return -EINVAL;
459 }
460
461 ar->hw_params = *hw_params;
462
463 ath10k_info("Hardware name %s version 0x%x\n",
464 ar->hw_params.name, ar->target_version);
465
466 return 0;
467}
468
Michal Kazioraffd3212013-07-16 09:54:35 +0200469static void ath10k_core_restart(struct work_struct *work)
470{
471 struct ath10k *ar = container_of(work, struct ath10k, restart_work);
472
473 mutex_lock(&ar->conf_mutex);
474
475 switch (ar->state) {
476 case ATH10K_STATE_ON:
477 ath10k_halt(ar);
478 ar->state = ATH10K_STATE_RESTARTING;
479 ieee80211_restart_hw(ar->hw);
480 break;
481 case ATH10K_STATE_OFF:
482 /* this can happen if driver is being unloaded */
483 ath10k_warn("cannot restart a device that hasn't been started\n");
484 break;
485 case ATH10K_STATE_RESTARTING:
486 case ATH10K_STATE_RESTARTED:
487 ar->state = ATH10K_STATE_WEDGED;
488 /* fall through */
489 case ATH10K_STATE_WEDGED:
490 ath10k_warn("device is wedged, will not restart\n");
491 break;
492 }
493
494 mutex_unlock(&ar->conf_mutex);
495}
496
Kalle Valo5e3dd152013-06-12 20:52:10 +0300497struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
Kalle Valo5e3dd152013-06-12 20:52:10 +0300498 const struct ath10k_hif_ops *hif_ops)
499{
500 struct ath10k *ar;
501
502 ar = ath10k_mac_create();
503 if (!ar)
504 return NULL;
505
506 ar->ath_common.priv = ar;
507 ar->ath_common.hw = ar->hw;
508
509 ar->p2p = !!ath10k_p2p;
510 ar->dev = dev;
511
512 ar->hif.priv = hif_priv;
513 ar->hif.ops = hif_ops;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300514
Kalle Valo5e3dd152013-06-12 20:52:10 +0300515 init_completion(&ar->scan.started);
516 init_completion(&ar->scan.completed);
517 init_completion(&ar->scan.on_channel);
518
519 init_completion(&ar->install_key_done);
520 init_completion(&ar->vdev_setup_done);
521
522 setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
523
524 ar->workqueue = create_singlethread_workqueue("ath10k_wq");
525 if (!ar->workqueue)
526 goto err_wq;
527
528 mutex_init(&ar->conf_mutex);
529 spin_lock_init(&ar->data_lock);
530
531 INIT_LIST_HEAD(&ar->peers);
532 init_waitqueue_head(&ar->peer_mapping_wq);
533
534 init_completion(&ar->offchan_tx_completed);
535 INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
536 skb_queue_head_init(&ar->offchan_tx_queue);
537
Bartosz Markowski5e00d312013-09-26 17:47:12 +0200538 INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
539 skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
540
Kalle Valo5e3dd152013-06-12 20:52:10 +0300541 init_waitqueue_head(&ar->event_queue);
542
Michal Kazioraffd3212013-07-16 09:54:35 +0200543 INIT_WORK(&ar->restart_work, ath10k_core_restart);
544
Kalle Valo5e3dd152013-06-12 20:52:10 +0300545 return ar;
546
547err_wq:
548 ath10k_mac_destroy(ar);
549 return NULL;
550}
551EXPORT_SYMBOL(ath10k_core_create);
552
553void ath10k_core_destroy(struct ath10k *ar)
554{
555 flush_workqueue(ar->workqueue);
556 destroy_workqueue(ar->workqueue);
557
558 ath10k_mac_destroy(ar);
559}
560EXPORT_SYMBOL(ath10k_core_destroy);
561
Michal Kaziordd30a362013-07-16 09:38:51 +0200562int ath10k_core_start(struct ath10k *ar)
Kalle Valo5e3dd152013-06-12 20:52:10 +0300563{
Kalle Valo5e3dd152013-06-12 20:52:10 +0300564 int status;
565
Michal Kazior64d151d2013-07-16 09:38:53 +0200566 ath10k_bmi_start(ar);
567
Kalle Valo5e3dd152013-06-12 20:52:10 +0300568 if (ath10k_init_configure_target(ar)) {
569 status = -EINVAL;
570 goto err;
571 }
572
573 status = ath10k_init_download_firmware(ar);
574 if (status)
575 goto err;
576
577 status = ath10k_init_uart(ar);
578 if (status)
579 goto err;
580
Michal Kaziorcd003fa2013-07-05 16:15:13 +0300581 ar->htc.htc_ops.target_send_suspend_complete =
582 ath10k_send_suspend_complete;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300583
Michal Kaziorcd003fa2013-07-05 16:15:13 +0300584 status = ath10k_htc_init(ar);
585 if (status) {
586 ath10k_err("could not init HTC (%d)\n", status);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300587 goto err;
588 }
589
590 status = ath10k_bmi_done(ar);
591 if (status)
Michal Kaziorcd003fa2013-07-05 16:15:13 +0300592 goto err;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300593
594 status = ath10k_wmi_attach(ar);
595 if (status) {
596 ath10k_err("WMI attach failed: %d\n", status);
Michal Kaziorcd003fa2013-07-05 16:15:13 +0300597 goto err;
Kalle Valo5e3dd152013-06-12 20:52:10 +0300598 }
599
Michal Kaziorcd003fa2013-07-05 16:15:13 +0300600 status = ath10k_htc_wait_target(&ar->htc);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300601 if (status)
602 goto err_wmi_detach;
603
Michal Kazioredb82362013-07-05 16:15:14 +0300604 status = ath10k_htt_attach(ar);
605 if (status) {
606 ath10k_err("could not attach htt (%d)\n", status);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300607 goto err_wmi_detach;
608 }
609
610 status = ath10k_init_connect_htc(ar);
611 if (status)
612 goto err_htt_detach;
613
614 ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version);
615
Kalle Valo5e3dd152013-06-12 20:52:10 +0300616 status = ath10k_wmi_cmd_init(ar);
617 if (status) {
618 ath10k_err("could not send WMI init command (%d)\n", status);
619 goto err_disconnect_htc;
620 }
621
622 status = ath10k_wmi_wait_for_unified_ready(ar);
623 if (status <= 0) {
624 ath10k_err("wmi unified ready event not received\n");
625 status = -ETIMEDOUT;
626 goto err_disconnect_htc;
627 }
628
Michal Kazioredb82362013-07-05 16:15:14 +0300629 status = ath10k_htt_attach_target(&ar->htt);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300630 if (status)
631 goto err_disconnect_htc;
632
Kalle Valodb66ea02013-09-03 11:44:03 +0300633 status = ath10k_debug_start(ar);
634 if (status)
635 goto err_disconnect_htc;
636
Michal Kazior1a1b8a82013-07-16 09:38:55 +0200637 ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1;
638
Michal Kaziordd30a362013-07-16 09:38:51 +0200639 return 0;
640
641err_disconnect_htc:
642 ath10k_htc_stop(&ar->htc);
643err_htt_detach:
644 ath10k_htt_detach(&ar->htt);
645err_wmi_detach:
646 ath10k_wmi_detach(ar);
647err:
648 return status;
649}
Michal Kazior818bdd12013-07-16 09:38:57 +0200650EXPORT_SYMBOL(ath10k_core_start);
Michal Kaziordd30a362013-07-16 09:38:51 +0200651
652void ath10k_core_stop(struct ath10k *ar)
653{
Kalle Valodb66ea02013-09-03 11:44:03 +0300654 ath10k_debug_stop(ar);
Michal Kaziordd30a362013-07-16 09:38:51 +0200655 ath10k_htc_stop(&ar->htc);
656 ath10k_htt_detach(&ar->htt);
657 ath10k_wmi_detach(ar);
658}
Michal Kazior818bdd12013-07-16 09:38:57 +0200659EXPORT_SYMBOL(ath10k_core_stop);
660
661/* mac80211 manages fw/hw initialization through start/stop hooks. However in
662 * order to know what hw capabilities should be advertised to mac80211 it is
663 * necessary to load the firmware (and tear it down immediately since start
664 * hook will try to init it again) before registering */
665static int ath10k_core_probe_fw(struct ath10k *ar)
666{
Michal Kazior29385052013-07-16 09:38:58 +0200667 struct bmi_target_info target_info;
668 int ret = 0;
Michal Kazior818bdd12013-07-16 09:38:57 +0200669
670 ret = ath10k_hif_power_up(ar);
671 if (ret) {
672 ath10k_err("could not start pci hif (%d)\n", ret);
673 return ret;
674 }
675
Michal Kazior29385052013-07-16 09:38:58 +0200676 memset(&target_info, 0, sizeof(target_info));
677 ret = ath10k_bmi_get_target_info(ar, &target_info);
678 if (ret) {
679 ath10k_err("could not get target info (%d)\n", ret);
680 ath10k_hif_power_down(ar);
681 return ret;
682 }
683
684 ar->target_version = target_info.version;
685 ar->hw->wiphy->hw_version = target_info.version;
686
687 ret = ath10k_init_hw_params(ar);
688 if (ret) {
689 ath10k_err("could not get hw params (%d)\n", ret);
690 ath10k_hif_power_down(ar);
691 return ret;
692 }
693
694 ret = ath10k_core_fetch_firmware_files(ar);
695 if (ret) {
696 ath10k_err("could not fetch firmware files (%d)\n", ret);
697 ath10k_hif_power_down(ar);
698 return ret;
699 }
700
Michal Kazior818bdd12013-07-16 09:38:57 +0200701 ret = ath10k_core_start(ar);
702 if (ret) {
703 ath10k_err("could not init core (%d)\n", ret);
Michal Kazior29385052013-07-16 09:38:58 +0200704 ath10k_core_free_firmware_files(ar);
Michal Kazior818bdd12013-07-16 09:38:57 +0200705 ath10k_hif_power_down(ar);
706 return ret;
707 }
708
709 ath10k_core_stop(ar);
710 ath10k_hif_power_down(ar);
711 return 0;
712}
Michal Kaziordd30a362013-07-16 09:38:51 +0200713
Kalle Valoe01ae682013-09-01 11:22:14 +0300714static int ath10k_core_check_chip_id(struct ath10k *ar)
715{
716 u32 hw_revision = MS(ar->chip_id, SOC_CHIP_ID_REV);
717
Kalle Valoeffea962013-09-08 17:55:44 +0300718 ath10k_dbg(ATH10K_DBG_BOOT, "boot chip_id 0x%08x hw_revision 0x%x\n",
719 ar->chip_id, hw_revision);
720
Kalle Valoe01ae682013-09-01 11:22:14 +0300721 /* Check that we are not using hw1.0 (some of them have same pci id
722 * as hw2.0) before doing anything else as ath10k crashes horribly
723 * due to missing hw1.0 workarounds. */
724 switch (hw_revision) {
725 case QCA988X_HW_1_0_CHIP_ID_REV:
726 ath10k_err("ERROR: qca988x hw1.0 is not supported\n");
727 return -EOPNOTSUPP;
728
729 case QCA988X_HW_2_0_CHIP_ID_REV:
730 /* known hardware revision, continue normally */
731 return 0;
732
733 default:
734 ath10k_warn("Warning: hardware revision unknown (0x%x), expect problems\n",
735 ar->chip_id);
736 return 0;
737 }
738
739 return 0;
740}
741
742int ath10k_core_register(struct ath10k *ar, u32 chip_id)
Michal Kaziordd30a362013-07-16 09:38:51 +0200743{
744 int status;
745
Kalle Valoe01ae682013-09-01 11:22:14 +0300746 ar->chip_id = chip_id;
747
748 status = ath10k_core_check_chip_id(ar);
749 if (status) {
750 ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id);
751 return status;
752 }
753
Michal Kazior818bdd12013-07-16 09:38:57 +0200754 status = ath10k_core_probe_fw(ar);
755 if (status) {
756 ath10k_err("could not probe fw (%d)\n", status);
757 return status;
758 }
Michal Kaziordd30a362013-07-16 09:38:51 +0200759
Kalle Valo5e3dd152013-06-12 20:52:10 +0300760 status = ath10k_mac_register(ar);
Michal Kazior818bdd12013-07-16 09:38:57 +0200761 if (status) {
762 ath10k_err("could not register to mac80211 (%d)\n", status);
Michal Kazior29385052013-07-16 09:38:58 +0200763 goto err_release_fw;
Michal Kazior818bdd12013-07-16 09:38:57 +0200764 }
Kalle Valo5e3dd152013-06-12 20:52:10 +0300765
766 status = ath10k_debug_create(ar);
767 if (status) {
768 ath10k_err("unable to initialize debugfs\n");
769 goto err_unregister_mac;
770 }
771
772 return 0;
773
774err_unregister_mac:
775 ath10k_mac_unregister(ar);
Michal Kazior29385052013-07-16 09:38:58 +0200776err_release_fw:
777 ath10k_core_free_firmware_files(ar);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300778 return status;
779}
780EXPORT_SYMBOL(ath10k_core_register);
781
782void ath10k_core_unregister(struct ath10k *ar)
783{
784 /* We must unregister from mac80211 before we stop HTC and HIF.
785 * Otherwise we will fail to submit commands to FW and mac80211 will be
786 * unhappy about callback failures. */
787 ath10k_mac_unregister(ar);
Kalle Valodb66ea02013-09-03 11:44:03 +0300788
Michal Kazior29385052013-07-16 09:38:58 +0200789 ath10k_core_free_firmware_files(ar);
Kalle Valo5e3dd152013-06-12 20:52:10 +0300790}
791EXPORT_SYMBOL(ath10k_core_unregister);
792
Kalle Valo5e3dd152013-06-12 20:52:10 +0300793MODULE_AUTHOR("Qualcomm Atheros");
794MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
795MODULE_LICENSE("Dual BSD/GPL");