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ath10k: fill 10.4 fw wmi init cmd default values
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / ath / ath10k / core.c
1 /*
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 #include <linux/of.h>
21
22 #include "core.h"
23 #include "mac.h"
24 #include "htc.h"
25 #include "hif.h"
26 #include "wmi.h"
27 #include "bmi.h"
28 #include "debug.h"
29 #include "htt.h"
30 #include "testmode.h"
31 #include "wmi-ops.h"
32
33 unsigned int ath10k_debug_mask;
34 static bool uart_print;
35 static bool skip_otp;
36
37 module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
38 module_param(uart_print, bool, 0644);
39 module_param(skip_otp, bool, 0644);
40
41 MODULE_PARM_DESC(debug_mask, "Debugging mask");
42 MODULE_PARM_DESC(uart_print, "Uart target debugging");
43 MODULE_PARM_DESC(skip_otp, "Skip otp failure for calibration in testmode");
44
45 static const struct ath10k_hw_params ath10k_hw_params_list[] = {
46 {
47 .id = QCA988X_HW_2_0_VERSION,
48 .name = "qca988x hw2.0",
49 .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
50 .uart_pin = 7,
51 .has_shifted_cc_wraparound = true,
52 .otp_exe_param = 0,
53 .fw = {
54 .dir = QCA988X_HW_2_0_FW_DIR,
55 .fw = QCA988X_HW_2_0_FW_FILE,
56 .otp = QCA988X_HW_2_0_OTP_FILE,
57 .board = QCA988X_HW_2_0_BOARD_DATA_FILE,
58 .board_size = QCA988X_BOARD_DATA_SZ,
59 .board_ext_size = QCA988X_BOARD_EXT_DATA_SZ,
60 },
61 },
62 {
63 .id = QCA6174_HW_2_1_VERSION,
64 .name = "qca6174 hw2.1",
65 .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR,
66 .uart_pin = 6,
67 .otp_exe_param = 0,
68 .fw = {
69 .dir = QCA6174_HW_2_1_FW_DIR,
70 .fw = QCA6174_HW_2_1_FW_FILE,
71 .otp = QCA6174_HW_2_1_OTP_FILE,
72 .board = QCA6174_HW_2_1_BOARD_DATA_FILE,
73 .board_size = QCA6174_BOARD_DATA_SZ,
74 .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
75 },
76 },
77 {
78 .id = QCA6174_HW_3_0_VERSION,
79 .name = "qca6174 hw3.0",
80 .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
81 .uart_pin = 6,
82 .otp_exe_param = 0,
83 .fw = {
84 .dir = QCA6174_HW_3_0_FW_DIR,
85 .fw = QCA6174_HW_3_0_FW_FILE,
86 .otp = QCA6174_HW_3_0_OTP_FILE,
87 .board = QCA6174_HW_3_0_BOARD_DATA_FILE,
88 .board_size = QCA6174_BOARD_DATA_SZ,
89 .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
90 },
91 },
92 {
93 .id = QCA6174_HW_3_2_VERSION,
94 .name = "qca6174 hw3.2",
95 .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
96 .uart_pin = 6,
97 .otp_exe_param = 0,
98 .fw = {
99 /* uses same binaries as hw3.0 */
100 .dir = QCA6174_HW_3_0_FW_DIR,
101 .fw = QCA6174_HW_3_0_FW_FILE,
102 .otp = QCA6174_HW_3_0_OTP_FILE,
103 .board = QCA6174_HW_3_0_BOARD_DATA_FILE,
104 .board_size = QCA6174_BOARD_DATA_SZ,
105 .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
106 },
107 },
108 {
109 .id = QCA99X0_HW_2_0_DEV_VERSION,
110 .name = "qca99x0 hw2.0",
111 .patch_load_addr = QCA99X0_HW_2_0_PATCH_LOAD_ADDR,
112 .uart_pin = 7,
113 .otp_exe_param = 0x00000700,
114 .fw = {
115 .dir = QCA99X0_HW_2_0_FW_DIR,
116 .fw = QCA99X0_HW_2_0_FW_FILE,
117 .otp = QCA99X0_HW_2_0_OTP_FILE,
118 .board = QCA99X0_HW_2_0_BOARD_DATA_FILE,
119 .board_size = QCA99X0_BOARD_DATA_SZ,
120 .board_ext_size = QCA99X0_BOARD_EXT_DATA_SZ,
121 },
122 },
123 };
124
125 static const char *const ath10k_core_fw_feature_str[] = {
126 [ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX] = "wmi-mgmt-rx",
127 [ATH10K_FW_FEATURE_WMI_10X] = "wmi-10.x",
128 [ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX] = "has-wmi-mgmt-tx",
129 [ATH10K_FW_FEATURE_NO_P2P] = "no-p2p",
130 [ATH10K_FW_FEATURE_WMI_10_2] = "wmi-10.2",
131 [ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT] = "multi-vif-ps",
132 [ATH10K_FW_FEATURE_WOWLAN_SUPPORT] = "wowlan",
133 [ATH10K_FW_FEATURE_IGNORE_OTP_RESULT] = "ignore-otp",
134 [ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING] = "no-4addr-pad",
135 [ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT] = "skip-clock-init",
136 };
137
138 static unsigned int ath10k_core_get_fw_feature_str(char *buf,
139 size_t buf_len,
140 enum ath10k_fw_features feat)
141 {
142 if (feat >= ARRAY_SIZE(ath10k_core_fw_feature_str) ||
143 WARN_ON(!ath10k_core_fw_feature_str[feat])) {
144 return scnprintf(buf, buf_len, "bit%d", feat);
145 }
146
147 return scnprintf(buf, buf_len, "%s", ath10k_core_fw_feature_str[feat]);
148 }
149
150 void ath10k_core_get_fw_features_str(struct ath10k *ar,
151 char *buf,
152 size_t buf_len)
153 {
154 unsigned int len = 0;
155 int i;
156
157 for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
158 if (test_bit(i, ar->fw_features)) {
159 if (len > 0)
160 len += scnprintf(buf + len, buf_len - len, ",");
161
162 len += ath10k_core_get_fw_feature_str(buf + len,
163 buf_len - len,
164 i);
165 }
166 }
167 }
168
169 static void ath10k_send_suspend_complete(struct ath10k *ar)
170 {
171 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n");
172
173 complete(&ar->target_suspend);
174 }
175
176 static int ath10k_init_configure_target(struct ath10k *ar)
177 {
178 u32 param_host;
179 int ret;
180
181 /* tell target which HTC version it is used*/
182 ret = ath10k_bmi_write32(ar, hi_app_host_interest,
183 HTC_PROTOCOL_VERSION);
184 if (ret) {
185 ath10k_err(ar, "settings HTC version failed\n");
186 return ret;
187 }
188
189 /* set the firmware mode to STA/IBSS/AP */
190 ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
191 if (ret) {
192 ath10k_err(ar, "setting firmware mode (1/2) failed\n");
193 return ret;
194 }
195
196 /* TODO following parameters need to be re-visited. */
197 /* num_device */
198 param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
199 /* Firmware mode */
200 /* FIXME: Why FW_MODE_AP ??.*/
201 param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
202 /* mac_addr_method */
203 param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
204 /* firmware_bridge */
205 param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
206 /* fwsubmode */
207 param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
208
209 ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
210 if (ret) {
211 ath10k_err(ar, "setting firmware mode (2/2) failed\n");
212 return ret;
213 }
214
215 /* We do all byte-swapping on the host */
216 ret = ath10k_bmi_write32(ar, hi_be, 0);
217 if (ret) {
218 ath10k_err(ar, "setting host CPU BE mode failed\n");
219 return ret;
220 }
221
222 /* FW descriptor/Data swap flags */
223 ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
224
225 if (ret) {
226 ath10k_err(ar, "setting FW data/desc swap flags failed\n");
227 return ret;
228 }
229
230 return 0;
231 }
232
233 static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
234 const char *dir,
235 const char *file)
236 {
237 char filename[100];
238 const struct firmware *fw;
239 int ret;
240
241 if (file == NULL)
242 return ERR_PTR(-ENOENT);
243
244 if (dir == NULL)
245 dir = ".";
246
247 snprintf(filename, sizeof(filename), "%s/%s", dir, file);
248 ret = request_firmware(&fw, filename, ar->dev);
249 if (ret)
250 return ERR_PTR(ret);
251
252 return fw;
253 }
254
255 static int ath10k_push_board_ext_data(struct ath10k *ar, const void *data,
256 size_t data_len)
257 {
258 u32 board_data_size = ar->hw_params.fw.board_size;
259 u32 board_ext_data_size = ar->hw_params.fw.board_ext_size;
260 u32 board_ext_data_addr;
261 int ret;
262
263 ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
264 if (ret) {
265 ath10k_err(ar, "could not read board ext data addr (%d)\n",
266 ret);
267 return ret;
268 }
269
270 ath10k_dbg(ar, ATH10K_DBG_BOOT,
271 "boot push board extended data addr 0x%x\n",
272 board_ext_data_addr);
273
274 if (board_ext_data_addr == 0)
275 return 0;
276
277 if (data_len != (board_data_size + board_ext_data_size)) {
278 ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n",
279 data_len, board_data_size, board_ext_data_size);
280 return -EINVAL;
281 }
282
283 ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
284 data + board_data_size,
285 board_ext_data_size);
286 if (ret) {
287 ath10k_err(ar, "could not write board ext data (%d)\n", ret);
288 return ret;
289 }
290
291 ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
292 (board_ext_data_size << 16) | 1);
293 if (ret) {
294 ath10k_err(ar, "could not write board ext data bit (%d)\n",
295 ret);
296 return ret;
297 }
298
299 return 0;
300 }
301
302 static int ath10k_download_board_data(struct ath10k *ar, const void *data,
303 size_t data_len)
304 {
305 u32 board_data_size = ar->hw_params.fw.board_size;
306 u32 address;
307 int ret;
308
309 ret = ath10k_push_board_ext_data(ar, data, data_len);
310 if (ret) {
311 ath10k_err(ar, "could not push board ext data (%d)\n", ret);
312 goto exit;
313 }
314
315 ret = ath10k_bmi_read32(ar, hi_board_data, &address);
316 if (ret) {
317 ath10k_err(ar, "could not read board data addr (%d)\n", ret);
318 goto exit;
319 }
320
321 ret = ath10k_bmi_write_memory(ar, address, data,
322 min_t(u32, board_data_size,
323 data_len));
324 if (ret) {
325 ath10k_err(ar, "could not write board data (%d)\n", ret);
326 goto exit;
327 }
328
329 ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
330 if (ret) {
331 ath10k_err(ar, "could not write board data bit (%d)\n", ret);
332 goto exit;
333 }
334
335 exit:
336 return ret;
337 }
338
339 static int ath10k_download_cal_file(struct ath10k *ar)
340 {
341 int ret;
342
343 if (!ar->cal_file)
344 return -ENOENT;
345
346 if (IS_ERR(ar->cal_file))
347 return PTR_ERR(ar->cal_file);
348
349 ret = ath10k_download_board_data(ar, ar->cal_file->data,
350 ar->cal_file->size);
351 if (ret) {
352 ath10k_err(ar, "failed to download cal_file data: %d\n", ret);
353 return ret;
354 }
355
356 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cal file downloaded\n");
357
358 return 0;
359 }
360
361 static int ath10k_download_cal_dt(struct ath10k *ar)
362 {
363 struct device_node *node;
364 int data_len;
365 void *data;
366 int ret;
367
368 node = ar->dev->of_node;
369 if (!node)
370 /* Device Tree is optional, don't print any warnings if
371 * there's no node for ath10k.
372 */
373 return -ENOENT;
374
375 if (!of_get_property(node, "qcom,ath10k-calibration-data",
376 &data_len)) {
377 /* The calibration data node is optional */
378 return -ENOENT;
379 }
380
381 if (data_len != QCA988X_CAL_DATA_LEN) {
382 ath10k_warn(ar, "invalid calibration data length in DT: %d\n",
383 data_len);
384 ret = -EMSGSIZE;
385 goto out;
386 }
387
388 data = kmalloc(data_len, GFP_KERNEL);
389 if (!data) {
390 ret = -ENOMEM;
391 goto out;
392 }
393
394 ret = of_property_read_u8_array(node, "qcom,ath10k-calibration-data",
395 data, data_len);
396 if (ret) {
397 ath10k_warn(ar, "failed to read calibration data from DT: %d\n",
398 ret);
399 goto out_free;
400 }
401
402 ret = ath10k_download_board_data(ar, data, data_len);
403 if (ret) {
404 ath10k_warn(ar, "failed to download calibration data from Device Tree: %d\n",
405 ret);
406 goto out_free;
407 }
408
409 ret = 0;
410
411 out_free:
412 kfree(data);
413
414 out:
415 return ret;
416 }
417
418 static int ath10k_download_and_run_otp(struct ath10k *ar)
419 {
420 u32 result, address = ar->hw_params.patch_load_addr;
421 u32 bmi_otp_exe_param = ar->hw_params.otp_exe_param;
422 int ret;
423
424 ret = ath10k_download_board_data(ar, ar->board_data, ar->board_len);
425 if (ret) {
426 ath10k_err(ar, "failed to download board data: %d\n", ret);
427 return ret;
428 }
429
430 /* OTP is optional */
431
432 if (!ar->otp_data || !ar->otp_len) {
433 ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
434 ar->otp_data, ar->otp_len);
435 return 0;
436 }
437
438 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
439 address, ar->otp_len);
440
441 ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
442 if (ret) {
443 ath10k_err(ar, "could not write otp (%d)\n", ret);
444 return ret;
445 }
446
447 ret = ath10k_bmi_execute(ar, address, bmi_otp_exe_param, &result);
448 if (ret) {
449 ath10k_err(ar, "could not execute otp (%d)\n", ret);
450 return ret;
451 }
452
453 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
454
455 if (!(skip_otp || test_bit(ATH10K_FW_FEATURE_IGNORE_OTP_RESULT,
456 ar->fw_features))
457 && result != 0) {
458 ath10k_err(ar, "otp calibration failed: %d", result);
459 return -EINVAL;
460 }
461
462 return 0;
463 }
464
465 static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
466 {
467 u32 address, data_len;
468 const char *mode_name;
469 const void *data;
470 int ret;
471
472 address = ar->hw_params.patch_load_addr;
473
474 switch (mode) {
475 case ATH10K_FIRMWARE_MODE_NORMAL:
476 data = ar->firmware_data;
477 data_len = ar->firmware_len;
478 mode_name = "normal";
479 ret = ath10k_swap_code_seg_configure(ar,
480 ATH10K_SWAP_CODE_SEG_BIN_TYPE_FW);
481 if (ret) {
482 ath10k_err(ar, "failed to configure fw code swap: %d\n",
483 ret);
484 return ret;
485 }
486 break;
487 case ATH10K_FIRMWARE_MODE_UTF:
488 data = ar->testmode.utf->data;
489 data_len = ar->testmode.utf->size;
490 mode_name = "utf";
491 break;
492 default:
493 ath10k_err(ar, "unknown firmware mode: %d\n", mode);
494 return -EINVAL;
495 }
496
497 ath10k_dbg(ar, ATH10K_DBG_BOOT,
498 "boot uploading firmware image %p len %d mode %s\n",
499 data, data_len, mode_name);
500
501 ret = ath10k_bmi_fast_download(ar, address, data, data_len);
502 if (ret) {
503 ath10k_err(ar, "failed to download %s firmware: %d\n",
504 mode_name, ret);
505 return ret;
506 }
507
508 return ret;
509 }
510
511 static void ath10k_core_free_firmware_files(struct ath10k *ar)
512 {
513 if (!IS_ERR(ar->board))
514 release_firmware(ar->board);
515
516 if (!IS_ERR(ar->otp))
517 release_firmware(ar->otp);
518
519 if (!IS_ERR(ar->firmware))
520 release_firmware(ar->firmware);
521
522 if (!IS_ERR(ar->cal_file))
523 release_firmware(ar->cal_file);
524
525 ath10k_swap_code_seg_release(ar);
526
527 ar->board = NULL;
528 ar->board_data = NULL;
529 ar->board_len = 0;
530
531 ar->otp = NULL;
532 ar->otp_data = NULL;
533 ar->otp_len = 0;
534
535 ar->firmware = NULL;
536 ar->firmware_data = NULL;
537 ar->firmware_len = 0;
538
539 ar->cal_file = NULL;
540
541 }
542
543 static int ath10k_fetch_cal_file(struct ath10k *ar)
544 {
545 char filename[100];
546
547 /* cal-<bus>-<id>.bin */
548 scnprintf(filename, sizeof(filename), "cal-%s-%s.bin",
549 ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
550
551 ar->cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename);
552 if (IS_ERR(ar->cal_file))
553 /* calibration file is optional, don't print any warnings */
554 return PTR_ERR(ar->cal_file);
555
556 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n",
557 ATH10K_FW_DIR, filename);
558
559 return 0;
560 }
561
562 static int ath10k_core_fetch_spec_board_file(struct ath10k *ar)
563 {
564 char filename[100];
565
566 scnprintf(filename, sizeof(filename), "board-%s-%s.bin",
567 ath10k_bus_str(ar->hif.bus), ar->spec_board_id);
568
569 ar->board = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, filename);
570 if (IS_ERR(ar->board))
571 return PTR_ERR(ar->board);
572
573 ar->board_data = ar->board->data;
574 ar->board_len = ar->board->size;
575 ar->spec_board_loaded = true;
576
577 return 0;
578 }
579
580 static int ath10k_core_fetch_generic_board_file(struct ath10k *ar)
581 {
582 if (!ar->hw_params.fw.board) {
583 ath10k_err(ar, "failed to find board file fw entry\n");
584 return -EINVAL;
585 }
586
587 ar->board = ath10k_fetch_fw_file(ar,
588 ar->hw_params.fw.dir,
589 ar->hw_params.fw.board);
590 if (IS_ERR(ar->board))
591 return PTR_ERR(ar->board);
592
593 ar->board_data = ar->board->data;
594 ar->board_len = ar->board->size;
595 ar->spec_board_loaded = false;
596
597 return 0;
598 }
599
600 static int ath10k_core_fetch_board_file(struct ath10k *ar)
601 {
602 int ret;
603
604 if (strlen(ar->spec_board_id) > 0) {
605 ret = ath10k_core_fetch_spec_board_file(ar);
606 if (ret) {
607 ath10k_info(ar, "failed to load spec board file, falling back to generic: %d\n",
608 ret);
609 goto generic;
610 }
611
612 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found specific board file for %s\n",
613 ar->spec_board_id);
614 return 0;
615 }
616
617 generic:
618 ret = ath10k_core_fetch_generic_board_file(ar);
619 if (ret) {
620 ath10k_err(ar, "failed to fetch generic board data: %d\n", ret);
621 return ret;
622 }
623
624 return 0;
625 }
626
627 static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
628 {
629 int ret = 0;
630
631 if (ar->hw_params.fw.fw == NULL) {
632 ath10k_err(ar, "firmware file not defined\n");
633 return -EINVAL;
634 }
635
636 ar->firmware = ath10k_fetch_fw_file(ar,
637 ar->hw_params.fw.dir,
638 ar->hw_params.fw.fw);
639 if (IS_ERR(ar->firmware)) {
640 ret = PTR_ERR(ar->firmware);
641 ath10k_err(ar, "could not fetch firmware (%d)\n", ret);
642 goto err;
643 }
644
645 ar->firmware_data = ar->firmware->data;
646 ar->firmware_len = ar->firmware->size;
647
648 /* OTP may be undefined. If so, don't fetch it at all */
649 if (ar->hw_params.fw.otp == NULL)
650 return 0;
651
652 ar->otp = ath10k_fetch_fw_file(ar,
653 ar->hw_params.fw.dir,
654 ar->hw_params.fw.otp);
655 if (IS_ERR(ar->otp)) {
656 ret = PTR_ERR(ar->otp);
657 ath10k_err(ar, "could not fetch otp (%d)\n", ret);
658 goto err;
659 }
660
661 ar->otp_data = ar->otp->data;
662 ar->otp_len = ar->otp->size;
663
664 return 0;
665
666 err:
667 ath10k_core_free_firmware_files(ar);
668 return ret;
669 }
670
671 static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
672 {
673 size_t magic_len, len, ie_len;
674 int ie_id, i, index, bit, ret;
675 struct ath10k_fw_ie *hdr;
676 const u8 *data;
677 __le32 *timestamp, *version;
678
679 /* first fetch the firmware file (firmware-*.bin) */
680 ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
681 if (IS_ERR(ar->firmware)) {
682 ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
683 ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
684 return PTR_ERR(ar->firmware);
685 }
686
687 data = ar->firmware->data;
688 len = ar->firmware->size;
689
690 /* magic also includes the null byte, check that as well */
691 magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
692
693 if (len < magic_len) {
694 ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n",
695 ar->hw_params.fw.dir, name, len);
696 ret = -EINVAL;
697 goto err;
698 }
699
700 if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
701 ath10k_err(ar, "invalid firmware magic\n");
702 ret = -EINVAL;
703 goto err;
704 }
705
706 /* jump over the padding */
707 magic_len = ALIGN(magic_len, 4);
708
709 len -= magic_len;
710 data += magic_len;
711
712 /* loop elements */
713 while (len > sizeof(struct ath10k_fw_ie)) {
714 hdr = (struct ath10k_fw_ie *)data;
715
716 ie_id = le32_to_cpu(hdr->id);
717 ie_len = le32_to_cpu(hdr->len);
718
719 len -= sizeof(*hdr);
720 data += sizeof(*hdr);
721
722 if (len < ie_len) {
723 ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
724 ie_id, len, ie_len);
725 ret = -EINVAL;
726 goto err;
727 }
728
729 switch (ie_id) {
730 case ATH10K_FW_IE_FW_VERSION:
731 if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
732 break;
733
734 memcpy(ar->hw->wiphy->fw_version, data, ie_len);
735 ar->hw->wiphy->fw_version[ie_len] = '\0';
736
737 ath10k_dbg(ar, ATH10K_DBG_BOOT,
738 "found fw version %s\n",
739 ar->hw->wiphy->fw_version);
740 break;
741 case ATH10K_FW_IE_TIMESTAMP:
742 if (ie_len != sizeof(u32))
743 break;
744
745 timestamp = (__le32 *)data;
746
747 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n",
748 le32_to_cpup(timestamp));
749 break;
750 case ATH10K_FW_IE_FEATURES:
751 ath10k_dbg(ar, ATH10K_DBG_BOOT,
752 "found firmware features ie (%zd B)\n",
753 ie_len);
754
755 for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
756 index = i / 8;
757 bit = i % 8;
758
759 if (index == ie_len)
760 break;
761
762 if (data[index] & (1 << bit)) {
763 ath10k_dbg(ar, ATH10K_DBG_BOOT,
764 "Enabling feature bit: %i\n",
765 i);
766 __set_bit(i, ar->fw_features);
767 }
768 }
769
770 ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "",
771 ar->fw_features,
772 sizeof(ar->fw_features));
773 break;
774 case ATH10K_FW_IE_FW_IMAGE:
775 ath10k_dbg(ar, ATH10K_DBG_BOOT,
776 "found fw image ie (%zd B)\n",
777 ie_len);
778
779 ar->firmware_data = data;
780 ar->firmware_len = ie_len;
781
782 break;
783 case ATH10K_FW_IE_OTP_IMAGE:
784 ath10k_dbg(ar, ATH10K_DBG_BOOT,
785 "found otp image ie (%zd B)\n",
786 ie_len);
787
788 ar->otp_data = data;
789 ar->otp_len = ie_len;
790
791 break;
792 case ATH10K_FW_IE_WMI_OP_VERSION:
793 if (ie_len != sizeof(u32))
794 break;
795
796 version = (__le32 *)data;
797
798 ar->wmi.op_version = le32_to_cpup(version);
799
800 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie wmi op version %d\n",
801 ar->wmi.op_version);
802 break;
803 case ATH10K_FW_IE_HTT_OP_VERSION:
804 if (ie_len != sizeof(u32))
805 break;
806
807 version = (__le32 *)data;
808
809 ar->htt.op_version = le32_to_cpup(version);
810
811 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie htt op version %d\n",
812 ar->htt.op_version);
813 break;
814 case ATH10K_FW_IE_FW_CODE_SWAP_IMAGE:
815 ath10k_dbg(ar, ATH10K_DBG_BOOT,
816 "found fw code swap image ie (%zd B)\n",
817 ie_len);
818 ar->swap.firmware_codeswap_data = data;
819 ar->swap.firmware_codeswap_len = ie_len;
820 break;
821 default:
822 ath10k_warn(ar, "Unknown FW IE: %u\n",
823 le32_to_cpu(hdr->id));
824 break;
825 }
826
827 /* jump over the padding */
828 ie_len = ALIGN(ie_len, 4);
829
830 len -= ie_len;
831 data += ie_len;
832 }
833
834 if (!ar->firmware_data || !ar->firmware_len) {
835 ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
836 ar->hw_params.fw.dir, name);
837 ret = -ENOMEDIUM;
838 goto err;
839 }
840
841 return 0;
842
843 err:
844 ath10k_core_free_firmware_files(ar);
845 return ret;
846 }
847
848 static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
849 {
850 int ret;
851
852 /* calibration file is optional, don't check for any errors */
853 ath10k_fetch_cal_file(ar);
854
855 ret = ath10k_core_fetch_board_file(ar);
856 if (ret) {
857 ath10k_err(ar, "failed to fetch board file: %d\n", ret);
858 return ret;
859 }
860
861 ar->fw_api = 5;
862 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
863
864 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API5_FILE);
865 if (ret == 0)
866 goto success;
867
868 ar->fw_api = 4;
869 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
870
871 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API4_FILE);
872 if (ret == 0)
873 goto success;
874
875 ar->fw_api = 3;
876 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
877
878 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE);
879 if (ret == 0)
880 goto success;
881
882 ar->fw_api = 2;
883 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
884
885 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
886 if (ret == 0)
887 goto success;
888
889 ar->fw_api = 1;
890 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
891
892 ret = ath10k_core_fetch_firmware_api_1(ar);
893 if (ret)
894 return ret;
895
896 success:
897 ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
898
899 return 0;
900 }
901
902 static int ath10k_download_cal_data(struct ath10k *ar)
903 {
904 int ret;
905
906 ret = ath10k_download_cal_file(ar);
907 if (ret == 0) {
908 ar->cal_mode = ATH10K_CAL_MODE_FILE;
909 goto done;
910 }
911
912 ath10k_dbg(ar, ATH10K_DBG_BOOT,
913 "boot did not find a calibration file, try DT next: %d\n",
914 ret);
915
916 ret = ath10k_download_cal_dt(ar);
917 if (ret == 0) {
918 ar->cal_mode = ATH10K_CAL_MODE_DT;
919 goto done;
920 }
921
922 ath10k_dbg(ar, ATH10K_DBG_BOOT,
923 "boot did not find DT entry, try OTP next: %d\n",
924 ret);
925
926 ret = ath10k_download_and_run_otp(ar);
927 if (ret) {
928 ath10k_err(ar, "failed to run otp: %d\n", ret);
929 return ret;
930 }
931
932 ar->cal_mode = ATH10K_CAL_MODE_OTP;
933
934 done:
935 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n",
936 ath10k_cal_mode_str(ar->cal_mode));
937 return 0;
938 }
939
940 static int ath10k_init_uart(struct ath10k *ar)
941 {
942 int ret;
943
944 /*
945 * Explicitly setting UART prints to zero as target turns it on
946 * based on scratch registers.
947 */
948 ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
949 if (ret) {
950 ath10k_warn(ar, "could not disable UART prints (%d)\n", ret);
951 return ret;
952 }
953
954 if (!uart_print)
955 return 0;
956
957 ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, ar->hw_params.uart_pin);
958 if (ret) {
959 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
960 return ret;
961 }
962
963 ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
964 if (ret) {
965 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
966 return ret;
967 }
968
969 /* Set the UART baud rate to 19200. */
970 ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
971 if (ret) {
972 ath10k_warn(ar, "could not set the baud rate (%d)\n", ret);
973 return ret;
974 }
975
976 ath10k_info(ar, "UART prints enabled\n");
977 return 0;
978 }
979
980 static int ath10k_init_hw_params(struct ath10k *ar)
981 {
982 const struct ath10k_hw_params *uninitialized_var(hw_params);
983 int i;
984
985 for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
986 hw_params = &ath10k_hw_params_list[i];
987
988 if (hw_params->id == ar->target_version)
989 break;
990 }
991
992 if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
993 ath10k_err(ar, "Unsupported hardware version: 0x%x\n",
994 ar->target_version);
995 return -EINVAL;
996 }
997
998 ar->hw_params = *hw_params;
999
1000 ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n",
1001 ar->hw_params.name, ar->target_version);
1002
1003 return 0;
1004 }
1005
1006 static void ath10k_core_restart(struct work_struct *work)
1007 {
1008 struct ath10k *ar = container_of(work, struct ath10k, restart_work);
1009
1010 set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
1011
1012 /* Place a barrier to make sure the compiler doesn't reorder
1013 * CRASH_FLUSH and calling other functions.
1014 */
1015 barrier();
1016
1017 ieee80211_stop_queues(ar->hw);
1018 ath10k_drain_tx(ar);
1019 complete_all(&ar->scan.started);
1020 complete_all(&ar->scan.completed);
1021 complete_all(&ar->scan.on_channel);
1022 complete_all(&ar->offchan_tx_completed);
1023 complete_all(&ar->install_key_done);
1024 complete_all(&ar->vdev_setup_done);
1025 complete_all(&ar->thermal.wmi_sync);
1026 wake_up(&ar->htt.empty_tx_wq);
1027 wake_up(&ar->wmi.tx_credits_wq);
1028 wake_up(&ar->peer_mapping_wq);
1029
1030 mutex_lock(&ar->conf_mutex);
1031
1032 switch (ar->state) {
1033 case ATH10K_STATE_ON:
1034 ar->state = ATH10K_STATE_RESTARTING;
1035 ath10k_hif_stop(ar);
1036 ath10k_scan_finish(ar);
1037 ieee80211_restart_hw(ar->hw);
1038 break;
1039 case ATH10K_STATE_OFF:
1040 /* this can happen if driver is being unloaded
1041 * or if the crash happens during FW probing */
1042 ath10k_warn(ar, "cannot restart a device that hasn't been started\n");
1043 break;
1044 case ATH10K_STATE_RESTARTING:
1045 /* hw restart might be requested from multiple places */
1046 break;
1047 case ATH10K_STATE_RESTARTED:
1048 ar->state = ATH10K_STATE_WEDGED;
1049 /* fall through */
1050 case ATH10K_STATE_WEDGED:
1051 ath10k_warn(ar, "device is wedged, will not restart\n");
1052 break;
1053 case ATH10K_STATE_UTF:
1054 ath10k_warn(ar, "firmware restart in UTF mode not supported\n");
1055 break;
1056 }
1057
1058 mutex_unlock(&ar->conf_mutex);
1059 }
1060
1061 static int ath10k_core_init_firmware_features(struct ath10k *ar)
1062 {
1063 if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) &&
1064 !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
1065 ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well");
1066 return -EINVAL;
1067 }
1068
1069 if (ar->wmi.op_version >= ATH10K_FW_WMI_OP_VERSION_MAX) {
1070 ath10k_err(ar, "unsupported WMI OP version (max %d): %d\n",
1071 ATH10K_FW_WMI_OP_VERSION_MAX, ar->wmi.op_version);
1072 return -EINVAL;
1073 }
1074
1075 /* Backwards compatibility for firmwares without
1076 * ATH10K_FW_IE_WMI_OP_VERSION.
1077 */
1078 if (ar->wmi.op_version == ATH10K_FW_WMI_OP_VERSION_UNSET) {
1079 if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
1080 if (test_bit(ATH10K_FW_FEATURE_WMI_10_2,
1081 ar->fw_features))
1082 ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_2;
1083 else
1084 ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1;
1085 } else {
1086 ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_MAIN;
1087 }
1088 }
1089
1090 switch (ar->wmi.op_version) {
1091 case ATH10K_FW_WMI_OP_VERSION_MAIN:
1092 ar->max_num_peers = TARGET_NUM_PEERS;
1093 ar->max_num_stations = TARGET_NUM_STATIONS;
1094 ar->max_num_vdevs = TARGET_NUM_VDEVS;
1095 ar->htt.max_num_pending_tx = TARGET_NUM_MSDU_DESC;
1096 ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV |
1097 WMI_STAT_PEER;
1098 break;
1099 case ATH10K_FW_WMI_OP_VERSION_10_1:
1100 case ATH10K_FW_WMI_OP_VERSION_10_2:
1101 case ATH10K_FW_WMI_OP_VERSION_10_2_4:
1102 ar->max_num_peers = TARGET_10X_NUM_PEERS;
1103 ar->max_num_stations = TARGET_10X_NUM_STATIONS;
1104 ar->max_num_vdevs = TARGET_10X_NUM_VDEVS;
1105 ar->htt.max_num_pending_tx = TARGET_10X_NUM_MSDU_DESC;
1106 ar->fw_stats_req_mask = WMI_STAT_PEER;
1107 break;
1108 case ATH10K_FW_WMI_OP_VERSION_TLV:
1109 ar->max_num_peers = TARGET_TLV_NUM_PEERS;
1110 ar->max_num_stations = TARGET_TLV_NUM_STATIONS;
1111 ar->max_num_vdevs = TARGET_TLV_NUM_VDEVS;
1112 ar->max_num_tdls_vdevs = TARGET_TLV_NUM_TDLS_VDEVS;
1113 ar->htt.max_num_pending_tx = TARGET_TLV_NUM_MSDU_DESC;
1114 ar->wow.max_num_patterns = TARGET_TLV_NUM_WOW_PATTERNS;
1115 ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV |
1116 WMI_STAT_PEER;
1117 break;
1118 case ATH10K_FW_WMI_OP_VERSION_10_4:
1119 ar->max_num_peers = TARGET_10_4_NUM_PEERS;
1120 ar->max_num_stations = TARGET_10_4_NUM_STATIONS;
1121 ar->num_active_peers = TARGET_10_4_ACTIVE_PEERS;
1122 ar->max_num_vdevs = TARGET_10_4_NUM_VDEVS;
1123 ar->num_tids = TARGET_10_4_TGT_NUM_TIDS;
1124 ar->fw_stats_req_mask = WMI_STAT_PEER;
1125 break;
1126 case ATH10K_FW_WMI_OP_VERSION_UNSET:
1127 case ATH10K_FW_WMI_OP_VERSION_MAX:
1128 WARN_ON(1);
1129 return -EINVAL;
1130 }
1131
1132 /* Backwards compatibility for firmwares without
1133 * ATH10K_FW_IE_HTT_OP_VERSION.
1134 */
1135 if (ar->htt.op_version == ATH10K_FW_HTT_OP_VERSION_UNSET) {
1136 switch (ar->wmi.op_version) {
1137 case ATH10K_FW_WMI_OP_VERSION_MAIN:
1138 ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_MAIN;
1139 break;
1140 case ATH10K_FW_WMI_OP_VERSION_10_1:
1141 case ATH10K_FW_WMI_OP_VERSION_10_2:
1142 case ATH10K_FW_WMI_OP_VERSION_10_2_4:
1143 ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_10_1;
1144 break;
1145 case ATH10K_FW_WMI_OP_VERSION_TLV:
1146 ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_TLV;
1147 break;
1148 case ATH10K_FW_WMI_OP_VERSION_10_4:
1149 case ATH10K_FW_WMI_OP_VERSION_UNSET:
1150 case ATH10K_FW_WMI_OP_VERSION_MAX:
1151 WARN_ON(1);
1152 return -EINVAL;
1153 }
1154 }
1155
1156 return 0;
1157 }
1158
1159 int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
1160 {
1161 int status;
1162
1163 lockdep_assert_held(&ar->conf_mutex);
1164
1165 clear_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
1166
1167 ath10k_bmi_start(ar);
1168
1169 if (ath10k_init_configure_target(ar)) {
1170 status = -EINVAL;
1171 goto err;
1172 }
1173
1174 status = ath10k_download_cal_data(ar);
1175 if (status)
1176 goto err;
1177
1178 /* Some of of qca988x solutions are having global reset issue
1179 * during target initialization. Bypassing PLL setting before
1180 * downloading firmware and letting the SoC run on REF_CLK is
1181 * fixing the problem. Corresponding firmware change is also needed
1182 * to set the clock source once the target is initialized.
1183 */
1184 if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT,
1185 ar->fw_features)) {
1186 status = ath10k_bmi_write32(ar, hi_skip_clock_init, 1);
1187 if (status) {
1188 ath10k_err(ar, "could not write to skip_clock_init: %d\n",
1189 status);
1190 goto err;
1191 }
1192 }
1193
1194 status = ath10k_download_fw(ar, mode);
1195 if (status)
1196 goto err;
1197
1198 status = ath10k_init_uart(ar);
1199 if (status)
1200 goto err;
1201
1202 ar->htc.htc_ops.target_send_suspend_complete =
1203 ath10k_send_suspend_complete;
1204
1205 status = ath10k_htc_init(ar);
1206 if (status) {
1207 ath10k_err(ar, "could not init HTC (%d)\n", status);
1208 goto err;
1209 }
1210
1211 status = ath10k_bmi_done(ar);
1212 if (status)
1213 goto err;
1214
1215 status = ath10k_wmi_attach(ar);
1216 if (status) {
1217 ath10k_err(ar, "WMI attach failed: %d\n", status);
1218 goto err;
1219 }
1220
1221 status = ath10k_htt_init(ar);
1222 if (status) {
1223 ath10k_err(ar, "failed to init htt: %d\n", status);
1224 goto err_wmi_detach;
1225 }
1226
1227 status = ath10k_htt_tx_alloc(&ar->htt);
1228 if (status) {
1229 ath10k_err(ar, "failed to alloc htt tx: %d\n", status);
1230 goto err_wmi_detach;
1231 }
1232
1233 status = ath10k_htt_rx_alloc(&ar->htt);
1234 if (status) {
1235 ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
1236 goto err_htt_tx_detach;
1237 }
1238
1239 status = ath10k_hif_start(ar);
1240 if (status) {
1241 ath10k_err(ar, "could not start HIF: %d\n", status);
1242 goto err_htt_rx_detach;
1243 }
1244
1245 status = ath10k_htc_wait_target(&ar->htc);
1246 if (status) {
1247 ath10k_err(ar, "failed to connect to HTC: %d\n", status);
1248 goto err_hif_stop;
1249 }
1250
1251 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1252 status = ath10k_htt_connect(&ar->htt);
1253 if (status) {
1254 ath10k_err(ar, "failed to connect htt (%d)\n", status);
1255 goto err_hif_stop;
1256 }
1257 }
1258
1259 status = ath10k_wmi_connect(ar);
1260 if (status) {
1261 ath10k_err(ar, "could not connect wmi: %d\n", status);
1262 goto err_hif_stop;
1263 }
1264
1265 status = ath10k_htc_start(&ar->htc);
1266 if (status) {
1267 ath10k_err(ar, "failed to start htc: %d\n", status);
1268 goto err_hif_stop;
1269 }
1270
1271 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1272 status = ath10k_wmi_wait_for_service_ready(ar);
1273 if (status) {
1274 ath10k_warn(ar, "wmi service ready event not received");
1275 goto err_hif_stop;
1276 }
1277 }
1278
1279 ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
1280 ar->hw->wiphy->fw_version);
1281
1282 status = ath10k_wmi_cmd_init(ar);
1283 if (status) {
1284 ath10k_err(ar, "could not send WMI init command (%d)\n",
1285 status);
1286 goto err_hif_stop;
1287 }
1288
1289 status = ath10k_wmi_wait_for_unified_ready(ar);
1290 if (status) {
1291 ath10k_err(ar, "wmi unified ready event not received\n");
1292 goto err_hif_stop;
1293 }
1294
1295 /* If firmware indicates Full Rx Reorder support it must be used in a
1296 * slightly different manner. Let HTT code know.
1297 */
1298 ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
1299 ar->wmi.svc_map));
1300
1301 status = ath10k_htt_rx_ring_refill(ar);
1302 if (status) {
1303 ath10k_err(ar, "failed to refill htt rx ring: %d\n", status);
1304 goto err_hif_stop;
1305 }
1306
1307 /* we don't care about HTT in UTF mode */
1308 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
1309 status = ath10k_htt_setup(&ar->htt);
1310 if (status) {
1311 ath10k_err(ar, "failed to setup htt: %d\n", status);
1312 goto err_hif_stop;
1313 }
1314 }
1315
1316 status = ath10k_debug_start(ar);
1317 if (status)
1318 goto err_hif_stop;
1319
1320 ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
1321
1322 INIT_LIST_HEAD(&ar->arvifs);
1323
1324 return 0;
1325
1326 err_hif_stop:
1327 ath10k_hif_stop(ar);
1328 err_htt_rx_detach:
1329 ath10k_htt_rx_free(&ar->htt);
1330 err_htt_tx_detach:
1331 ath10k_htt_tx_free(&ar->htt);
1332 err_wmi_detach:
1333 ath10k_wmi_detach(ar);
1334 err:
1335 return status;
1336 }
1337 EXPORT_SYMBOL(ath10k_core_start);
1338
1339 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt)
1340 {
1341 int ret;
1342 unsigned long time_left;
1343
1344 reinit_completion(&ar->target_suspend);
1345
1346 ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt);
1347 if (ret) {
1348 ath10k_warn(ar, "could not suspend target (%d)\n", ret);
1349 return ret;
1350 }
1351
1352 time_left = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ);
1353
1354 if (!time_left) {
1355 ath10k_warn(ar, "suspend timed out - target pause event never came\n");
1356 return -ETIMEDOUT;
1357 }
1358
1359 return 0;
1360 }
1361
1362 void ath10k_core_stop(struct ath10k *ar)
1363 {
1364 lockdep_assert_held(&ar->conf_mutex);
1365
1366 /* try to suspend target */
1367 if (ar->state != ATH10K_STATE_RESTARTING &&
1368 ar->state != ATH10K_STATE_UTF)
1369 ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR);
1370
1371 ath10k_debug_stop(ar);
1372 ath10k_hif_stop(ar);
1373 ath10k_htt_tx_free(&ar->htt);
1374 ath10k_htt_rx_free(&ar->htt);
1375 ath10k_wmi_detach(ar);
1376 }
1377 EXPORT_SYMBOL(ath10k_core_stop);
1378
1379 /* mac80211 manages fw/hw initialization through start/stop hooks. However in
1380 * order to know what hw capabilities should be advertised to mac80211 it is
1381 * necessary to load the firmware (and tear it down immediately since start
1382 * hook will try to init it again) before registering */
1383 static int ath10k_core_probe_fw(struct ath10k *ar)
1384 {
1385 struct bmi_target_info target_info;
1386 int ret = 0;
1387
1388 ret = ath10k_hif_power_up(ar);
1389 if (ret) {
1390 ath10k_err(ar, "could not start pci hif (%d)\n", ret);
1391 return ret;
1392 }
1393
1394 memset(&target_info, 0, sizeof(target_info));
1395 ret = ath10k_bmi_get_target_info(ar, &target_info);
1396 if (ret) {
1397 ath10k_err(ar, "could not get target info (%d)\n", ret);
1398 goto err_power_down;
1399 }
1400
1401 ar->target_version = target_info.version;
1402 ar->hw->wiphy->hw_version = target_info.version;
1403
1404 ret = ath10k_init_hw_params(ar);
1405 if (ret) {
1406 ath10k_err(ar, "could not get hw params (%d)\n", ret);
1407 goto err_power_down;
1408 }
1409
1410 ret = ath10k_core_fetch_firmware_files(ar);
1411 if (ret) {
1412 ath10k_err(ar, "could not fetch firmware files (%d)\n", ret);
1413 goto err_power_down;
1414 }
1415
1416 ret = ath10k_core_init_firmware_features(ar);
1417 if (ret) {
1418 ath10k_err(ar, "fatal problem with firmware features: %d\n",
1419 ret);
1420 goto err_free_firmware_files;
1421 }
1422
1423 ret = ath10k_swap_code_seg_init(ar);
1424 if (ret) {
1425 ath10k_err(ar, "failed to initialize code swap segment: %d\n",
1426 ret);
1427 goto err_free_firmware_files;
1428 }
1429
1430 mutex_lock(&ar->conf_mutex);
1431
1432 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
1433 if (ret) {
1434 ath10k_err(ar, "could not init core (%d)\n", ret);
1435 goto err_unlock;
1436 }
1437
1438 ath10k_print_driver_info(ar);
1439 ath10k_core_stop(ar);
1440
1441 mutex_unlock(&ar->conf_mutex);
1442
1443 ath10k_hif_power_down(ar);
1444 return 0;
1445
1446 err_unlock:
1447 mutex_unlock(&ar->conf_mutex);
1448
1449 err_free_firmware_files:
1450 ath10k_core_free_firmware_files(ar);
1451
1452 err_power_down:
1453 ath10k_hif_power_down(ar);
1454
1455 return ret;
1456 }
1457
1458 static void ath10k_core_register_work(struct work_struct *work)
1459 {
1460 struct ath10k *ar = container_of(work, struct ath10k, register_work);
1461 int status;
1462
1463 status = ath10k_core_probe_fw(ar);
1464 if (status) {
1465 ath10k_err(ar, "could not probe fw (%d)\n", status);
1466 goto err;
1467 }
1468
1469 status = ath10k_mac_register(ar);
1470 if (status) {
1471 ath10k_err(ar, "could not register to mac80211 (%d)\n", status);
1472 goto err_release_fw;
1473 }
1474
1475 status = ath10k_debug_register(ar);
1476 if (status) {
1477 ath10k_err(ar, "unable to initialize debugfs\n");
1478 goto err_unregister_mac;
1479 }
1480
1481 status = ath10k_spectral_create(ar);
1482 if (status) {
1483 ath10k_err(ar, "failed to initialize spectral\n");
1484 goto err_debug_destroy;
1485 }
1486
1487 status = ath10k_thermal_register(ar);
1488 if (status) {
1489 ath10k_err(ar, "could not register thermal device: %d\n",
1490 status);
1491 goto err_spectral_destroy;
1492 }
1493
1494 set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
1495 return;
1496
1497 err_spectral_destroy:
1498 ath10k_spectral_destroy(ar);
1499 err_debug_destroy:
1500 ath10k_debug_destroy(ar);
1501 err_unregister_mac:
1502 ath10k_mac_unregister(ar);
1503 err_release_fw:
1504 ath10k_core_free_firmware_files(ar);
1505 err:
1506 /* TODO: It's probably a good idea to release device from the driver
1507 * but calling device_release_driver() here will cause a deadlock.
1508 */
1509 return;
1510 }
1511
1512 int ath10k_core_register(struct ath10k *ar, u32 chip_id)
1513 {
1514 ar->chip_id = chip_id;
1515 queue_work(ar->workqueue, &ar->register_work);
1516
1517 return 0;
1518 }
1519 EXPORT_SYMBOL(ath10k_core_register);
1520
1521 void ath10k_core_unregister(struct ath10k *ar)
1522 {
1523 cancel_work_sync(&ar->register_work);
1524
1525 if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
1526 return;
1527
1528 ath10k_thermal_unregister(ar);
1529 /* Stop spectral before unregistering from mac80211 to remove the
1530 * relayfs debugfs file cleanly. Otherwise the parent debugfs tree
1531 * would be already be free'd recursively, leading to a double free.
1532 */
1533 ath10k_spectral_destroy(ar);
1534
1535 /* We must unregister from mac80211 before we stop HTC and HIF.
1536 * Otherwise we will fail to submit commands to FW and mac80211 will be
1537 * unhappy about callback failures. */
1538 ath10k_mac_unregister(ar);
1539
1540 ath10k_testmode_destroy(ar);
1541
1542 ath10k_core_free_firmware_files(ar);
1543
1544 ath10k_debug_unregister(ar);
1545 }
1546 EXPORT_SYMBOL(ath10k_core_unregister);
1547
1548 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
1549 enum ath10k_bus bus,
1550 enum ath10k_hw_rev hw_rev,
1551 const struct ath10k_hif_ops *hif_ops)
1552 {
1553 struct ath10k *ar;
1554 int ret;
1555
1556 ar = ath10k_mac_create(priv_size);
1557 if (!ar)
1558 return NULL;
1559
1560 ar->ath_common.priv = ar;
1561 ar->ath_common.hw = ar->hw;
1562 ar->dev = dev;
1563 ar->hw_rev = hw_rev;
1564 ar->hif.ops = hif_ops;
1565 ar->hif.bus = bus;
1566
1567 switch (hw_rev) {
1568 case ATH10K_HW_QCA988X:
1569 ar->regs = &qca988x_regs;
1570 ar->hw_values = &qca988x_values;
1571 break;
1572 case ATH10K_HW_QCA6174:
1573 ar->regs = &qca6174_regs;
1574 ar->hw_values = &qca6174_values;
1575 break;
1576 case ATH10K_HW_QCA99X0:
1577 ar->regs = &qca99x0_regs;
1578 ar->hw_values = &qca99x0_values;
1579 break;
1580 default:
1581 ath10k_err(ar, "unsupported core hardware revision %d\n",
1582 hw_rev);
1583 ret = -ENOTSUPP;
1584 goto err_free_mac;
1585 }
1586
1587 init_completion(&ar->scan.started);
1588 init_completion(&ar->scan.completed);
1589 init_completion(&ar->scan.on_channel);
1590 init_completion(&ar->target_suspend);
1591 init_completion(&ar->wow.wakeup_completed);
1592
1593 init_completion(&ar->install_key_done);
1594 init_completion(&ar->vdev_setup_done);
1595 init_completion(&ar->thermal.wmi_sync);
1596
1597 INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work);
1598
1599 ar->workqueue = create_singlethread_workqueue("ath10k_wq");
1600 if (!ar->workqueue)
1601 goto err_free_mac;
1602
1603 mutex_init(&ar->conf_mutex);
1604 spin_lock_init(&ar->data_lock);
1605
1606 INIT_LIST_HEAD(&ar->peers);
1607 init_waitqueue_head(&ar->peer_mapping_wq);
1608 init_waitqueue_head(&ar->htt.empty_tx_wq);
1609 init_waitqueue_head(&ar->wmi.tx_credits_wq);
1610
1611 init_completion(&ar->offchan_tx_completed);
1612 INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
1613 skb_queue_head_init(&ar->offchan_tx_queue);
1614
1615 INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
1616 skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
1617
1618 INIT_WORK(&ar->register_work, ath10k_core_register_work);
1619 INIT_WORK(&ar->restart_work, ath10k_core_restart);
1620
1621 ret = ath10k_debug_create(ar);
1622 if (ret)
1623 goto err_free_wq;
1624
1625 return ar;
1626
1627 err_free_wq:
1628 destroy_workqueue(ar->workqueue);
1629
1630 err_free_mac:
1631 ath10k_mac_destroy(ar);
1632
1633 return NULL;
1634 }
1635 EXPORT_SYMBOL(ath10k_core_create);
1636
1637 void ath10k_core_destroy(struct ath10k *ar)
1638 {
1639 flush_workqueue(ar->workqueue);
1640 destroy_workqueue(ar->workqueue);
1641
1642 ath10k_debug_destroy(ar);
1643 ath10k_mac_destroy(ar);
1644 }
1645 EXPORT_SYMBOL(ath10k_core_destroy);
1646
1647 MODULE_AUTHOR("Qualcomm Atheros");
1648 MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
1649 MODULE_LICENSE("Dual BSD/GPL");
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