2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
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.
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.
18 #include <linux/module.h>
19 #include <linux/firmware.h>
31 unsigned int ath10k_debug_mask;
32 static bool uart_print;
33 static unsigned int ath10k_p2p;
34 module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
35 module_param(uart_print, bool, 0644);
36 module_param_named(p2p, ath10k_p2p, uint, 0644);
37 MODULE_PARM_DESC(debug_mask, "Debugging mask");
38 MODULE_PARM_DESC(uart_print, "Uart target debugging");
39 MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
41 static const struct ath10k_hw_params ath10k_hw_params_list[] = {
43 .id = QCA988X_HW_2_0_VERSION,
44 .name = "qca988x hw2.0",
45 .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
47 .dir = QCA988X_HW_2_0_FW_DIR,
48 .fw = QCA988X_HW_2_0_FW_FILE,
49 .otp = QCA988X_HW_2_0_OTP_FILE,
50 .board = QCA988X_HW_2_0_BOARD_DATA_FILE,
55 static void ath10k_send_suspend_complete(struct ath10k *ar)
57 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n");
59 complete(&ar->target_suspend);
62 static int ath10k_init_configure_target(struct ath10k *ar)
67 /* tell target which HTC version it is used*/
68 ret = ath10k_bmi_write32(ar, hi_app_host_interest,
69 HTC_PROTOCOL_VERSION);
71 ath10k_err(ar, "settings HTC version failed\n");
75 /* set the firmware mode to STA/IBSS/AP */
76 ret = ath10k_bmi_read32(ar, hi_option_flag, ¶m_host);
78 ath10k_err(ar, "setting firmware mode (1/2) failed\n");
82 /* TODO following parameters need to be re-visited. */
84 param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
86 /* FIXME: Why FW_MODE_AP ??.*/
87 param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
89 param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
91 param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
93 param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
95 ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
97 ath10k_err(ar, "setting firmware mode (2/2) failed\n");
101 /* We do all byte-swapping on the host */
102 ret = ath10k_bmi_write32(ar, hi_be, 0);
104 ath10k_err(ar, "setting host CPU BE mode failed\n");
108 /* FW descriptor/Data swap flags */
109 ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
112 ath10k_err(ar, "setting FW data/desc swap flags failed\n");
119 static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
124 const struct firmware *fw;
128 return ERR_PTR(-ENOENT);
133 snprintf(filename, sizeof(filename), "%s/%s", dir, file);
134 ret = request_firmware(&fw, filename, ar->dev);
141 static int ath10k_push_board_ext_data(struct ath10k *ar, const void *data,
144 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
145 u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
146 u32 board_ext_data_addr;
149 ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
151 ath10k_err(ar, "could not read board ext data addr (%d)\n",
156 ath10k_dbg(ar, ATH10K_DBG_BOOT,
157 "boot push board extended data addr 0x%x\n",
158 board_ext_data_addr);
160 if (board_ext_data_addr == 0)
163 if (data_len != (board_data_size + board_ext_data_size)) {
164 ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n",
165 data_len, board_data_size, board_ext_data_size);
169 ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
170 data + board_data_size,
171 board_ext_data_size);
173 ath10k_err(ar, "could not write board ext data (%d)\n", ret);
177 ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
178 (board_ext_data_size << 16) | 1);
180 ath10k_err(ar, "could not write board ext data bit (%d)\n",
188 static int ath10k_download_board_data(struct ath10k *ar, const void *data,
191 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
195 ret = ath10k_push_board_ext_data(ar, data, data_len);
197 ath10k_err(ar, "could not push board ext data (%d)\n", ret);
201 ret = ath10k_bmi_read32(ar, hi_board_data, &address);
203 ath10k_err(ar, "could not read board data addr (%d)\n", ret);
207 ret = ath10k_bmi_write_memory(ar, address, data,
208 min_t(u32, board_data_size,
211 ath10k_err(ar, "could not write board data (%d)\n", ret);
215 ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
217 ath10k_err(ar, "could not write board data bit (%d)\n", ret);
225 static int ath10k_download_cal_file(struct ath10k *ar)
232 if (IS_ERR(ar->cal_file))
233 return PTR_ERR(ar->cal_file);
235 ret = ath10k_download_board_data(ar, ar->cal_file->data,
238 ath10k_err(ar, "failed to download cal_file data: %d\n", ret);
242 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cal file downloaded\n");
247 static int ath10k_download_and_run_otp(struct ath10k *ar)
249 u32 result, address = ar->hw_params.patch_load_addr;
252 ret = ath10k_download_board_data(ar, ar->board_data, ar->board_len);
254 ath10k_err(ar, "failed to download board data: %d\n", ret);
258 /* OTP is optional */
260 if (!ar->otp_data || !ar->otp_len) {
261 ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
262 ar->otp_data, ar->otp_len);
266 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
267 address, ar->otp_len);
269 ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
271 ath10k_err(ar, "could not write otp (%d)\n", ret);
275 ret = ath10k_bmi_execute(ar, address, 0, &result);
277 ath10k_err(ar, "could not execute otp (%d)\n", ret);
281 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
284 ath10k_err(ar, "otp calibration failed: %d", result);
291 static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode)
293 u32 address, data_len;
294 const char *mode_name;
298 address = ar->hw_params.patch_load_addr;
301 case ATH10K_FIRMWARE_MODE_NORMAL:
302 data = ar->firmware_data;
303 data_len = ar->firmware_len;
304 mode_name = "normal";
306 case ATH10K_FIRMWARE_MODE_UTF:
307 data = ar->testmode.utf->data;
308 data_len = ar->testmode.utf->size;
312 ath10k_err(ar, "unknown firmware mode: %d\n", mode);
316 ath10k_dbg(ar, ATH10K_DBG_BOOT,
317 "boot uploading firmware image %p len %d mode %s\n",
318 data, data_len, mode_name);
320 ret = ath10k_bmi_fast_download(ar, address, data, data_len);
322 ath10k_err(ar, "failed to download %s firmware: %d\n",
330 static void ath10k_core_free_firmware_files(struct ath10k *ar)
332 if (ar->board && !IS_ERR(ar->board))
333 release_firmware(ar->board);
335 if (ar->otp && !IS_ERR(ar->otp))
336 release_firmware(ar->otp);
338 if (ar->firmware && !IS_ERR(ar->firmware))
339 release_firmware(ar->firmware);
341 if (ar->cal_file && !IS_ERR(ar->cal_file))
342 release_firmware(ar->cal_file);
345 ar->board_data = NULL;
353 ar->firmware_data = NULL;
354 ar->firmware_len = 0;
359 static int ath10k_fetch_cal_file(struct ath10k *ar)
363 /* cal-<bus>-<id>.bin */
364 scnprintf(filename, sizeof(filename), "cal-%s-%s.bin",
365 ath10k_bus_str(ar->hif.bus), dev_name(ar->dev));
367 ar->cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename);
368 if (IS_ERR(ar->cal_file))
369 /* calibration file is optional, don't print any warnings */
370 return PTR_ERR(ar->cal_file);
372 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n",
373 ATH10K_FW_DIR, filename);
378 static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
382 if (ar->hw_params.fw.fw == NULL) {
383 ath10k_err(ar, "firmware file not defined\n");
387 if (ar->hw_params.fw.board == NULL) {
388 ath10k_err(ar, "board data file not defined");
392 ar->board = ath10k_fetch_fw_file(ar,
393 ar->hw_params.fw.dir,
394 ar->hw_params.fw.board);
395 if (IS_ERR(ar->board)) {
396 ret = PTR_ERR(ar->board);
397 ath10k_err(ar, "could not fetch board data (%d)\n", ret);
401 ar->board_data = ar->board->data;
402 ar->board_len = ar->board->size;
404 ar->firmware = ath10k_fetch_fw_file(ar,
405 ar->hw_params.fw.dir,
406 ar->hw_params.fw.fw);
407 if (IS_ERR(ar->firmware)) {
408 ret = PTR_ERR(ar->firmware);
409 ath10k_err(ar, "could not fetch firmware (%d)\n", ret);
413 ar->firmware_data = ar->firmware->data;
414 ar->firmware_len = ar->firmware->size;
416 /* OTP may be undefined. If so, don't fetch it at all */
417 if (ar->hw_params.fw.otp == NULL)
420 ar->otp = ath10k_fetch_fw_file(ar,
421 ar->hw_params.fw.dir,
422 ar->hw_params.fw.otp);
423 if (IS_ERR(ar->otp)) {
424 ret = PTR_ERR(ar->otp);
425 ath10k_err(ar, "could not fetch otp (%d)\n", ret);
429 ar->otp_data = ar->otp->data;
430 ar->otp_len = ar->otp->size;
435 ath10k_core_free_firmware_files(ar);
439 static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
441 size_t magic_len, len, ie_len;
442 int ie_id, i, index, bit, ret;
443 struct ath10k_fw_ie *hdr;
447 /* first fetch the firmware file (firmware-*.bin) */
448 ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
449 if (IS_ERR(ar->firmware)) {
450 ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
451 ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
452 return PTR_ERR(ar->firmware);
455 data = ar->firmware->data;
456 len = ar->firmware->size;
458 /* magic also includes the null byte, check that as well */
459 magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
461 if (len < magic_len) {
462 ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n",
463 ar->hw_params.fw.dir, name, len);
468 if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
469 ath10k_err(ar, "invalid firmware magic\n");
474 /* jump over the padding */
475 magic_len = ALIGN(magic_len, 4);
481 while (len > sizeof(struct ath10k_fw_ie)) {
482 hdr = (struct ath10k_fw_ie *)data;
484 ie_id = le32_to_cpu(hdr->id);
485 ie_len = le32_to_cpu(hdr->len);
488 data += sizeof(*hdr);
491 ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
498 case ATH10K_FW_IE_FW_VERSION:
499 if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
502 memcpy(ar->hw->wiphy->fw_version, data, ie_len);
503 ar->hw->wiphy->fw_version[ie_len] = '\0';
505 ath10k_dbg(ar, ATH10K_DBG_BOOT,
506 "found fw version %s\n",
507 ar->hw->wiphy->fw_version);
509 case ATH10K_FW_IE_TIMESTAMP:
510 if (ie_len != sizeof(u32))
513 timestamp = (__le32 *)data;
515 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n",
516 le32_to_cpup(timestamp));
518 case ATH10K_FW_IE_FEATURES:
519 ath10k_dbg(ar, ATH10K_DBG_BOOT,
520 "found firmware features ie (%zd B)\n",
523 for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
530 if (data[index] & (1 << bit)) {
531 ath10k_dbg(ar, ATH10K_DBG_BOOT,
532 "Enabling feature bit: %i\n",
534 __set_bit(i, ar->fw_features);
538 ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "",
540 sizeof(ar->fw_features));
542 case ATH10K_FW_IE_FW_IMAGE:
543 ath10k_dbg(ar, ATH10K_DBG_BOOT,
544 "found fw image ie (%zd B)\n",
547 ar->firmware_data = data;
548 ar->firmware_len = ie_len;
551 case ATH10K_FW_IE_OTP_IMAGE:
552 ath10k_dbg(ar, ATH10K_DBG_BOOT,
553 "found otp image ie (%zd B)\n",
557 ar->otp_len = ie_len;
561 ath10k_warn(ar, "Unknown FW IE: %u\n",
562 le32_to_cpu(hdr->id));
566 /* jump over the padding */
567 ie_len = ALIGN(ie_len, 4);
573 if (!ar->firmware_data || !ar->firmware_len) {
574 ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
575 ar->hw_params.fw.dir, name);
580 if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) &&
581 !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
582 ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well");
587 /* now fetch the board file */
588 if (ar->hw_params.fw.board == NULL) {
589 ath10k_err(ar, "board data file not defined");
594 ar->board = ath10k_fetch_fw_file(ar,
595 ar->hw_params.fw.dir,
596 ar->hw_params.fw.board);
597 if (IS_ERR(ar->board)) {
598 ret = PTR_ERR(ar->board);
599 ath10k_err(ar, "could not fetch board data '%s/%s' (%d)\n",
600 ar->hw_params.fw.dir, ar->hw_params.fw.board,
605 ar->board_data = ar->board->data;
606 ar->board_len = ar->board->size;
611 ath10k_core_free_firmware_files(ar);
615 static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
619 /* calibration file is optional, don't check for any errors */
620 ath10k_fetch_cal_file(ar);
623 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
625 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE);
630 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
632 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
637 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
639 ret = ath10k_core_fetch_firmware_api_1(ar);
644 ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
649 static int ath10k_download_cal_data(struct ath10k *ar)
653 ret = ath10k_download_cal_file(ar);
655 ar->cal_mode = ATH10K_CAL_MODE_FILE;
659 ath10k_dbg(ar, ATH10K_DBG_BOOT,
660 "boot did not find a calibration file, try OTP next: %d\n",
663 ret = ath10k_download_and_run_otp(ar);
665 ath10k_err(ar, "failed to run otp: %d\n", ret);
669 ar->cal_mode = ATH10K_CAL_MODE_OTP;
672 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n",
673 ath10k_cal_mode_str(ar->cal_mode));
677 static int ath10k_init_uart(struct ath10k *ar)
682 * Explicitly setting UART prints to zero as target turns it on
683 * based on scratch registers.
685 ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
687 ath10k_warn(ar, "could not disable UART prints (%d)\n", ret);
694 ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
696 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
700 ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
702 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
706 /* Set the UART baud rate to 19200. */
707 ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
709 ath10k_warn(ar, "could not set the baud rate (%d)\n", ret);
713 ath10k_info(ar, "UART prints enabled\n");
717 static int ath10k_init_hw_params(struct ath10k *ar)
719 const struct ath10k_hw_params *uninitialized_var(hw_params);
722 for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
723 hw_params = &ath10k_hw_params_list[i];
725 if (hw_params->id == ar->target_version)
729 if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
730 ath10k_err(ar, "Unsupported hardware version: 0x%x\n",
735 ar->hw_params = *hw_params;
737 ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n",
738 ar->hw_params.name, ar->target_version);
743 static void ath10k_core_restart(struct work_struct *work)
745 struct ath10k *ar = container_of(work, struct ath10k, restart_work);
747 mutex_lock(&ar->conf_mutex);
750 case ATH10K_STATE_ON:
751 ar->state = ATH10K_STATE_RESTARTING;
753 ath10k_scan_finish(ar);
754 ieee80211_restart_hw(ar->hw);
756 case ATH10K_STATE_OFF:
757 /* this can happen if driver is being unloaded
758 * or if the crash happens during FW probing */
759 ath10k_warn(ar, "cannot restart a device that hasn't been started\n");
761 case ATH10K_STATE_RESTARTING:
762 /* hw restart might be requested from multiple places */
764 case ATH10K_STATE_RESTARTED:
765 ar->state = ATH10K_STATE_WEDGED;
767 case ATH10K_STATE_WEDGED:
768 ath10k_warn(ar, "device is wedged, will not restart\n");
770 case ATH10K_STATE_UTF:
771 ath10k_warn(ar, "firmware restart in UTF mode not supported\n");
775 mutex_unlock(&ar->conf_mutex);
778 int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
782 lockdep_assert_held(&ar->conf_mutex);
784 ath10k_bmi_start(ar);
786 if (ath10k_init_configure_target(ar)) {
791 status = ath10k_download_cal_data(ar);
795 status = ath10k_download_fw(ar, mode);
799 status = ath10k_init_uart(ar);
803 ar->htc.htc_ops.target_send_suspend_complete =
804 ath10k_send_suspend_complete;
806 status = ath10k_htc_init(ar);
808 ath10k_err(ar, "could not init HTC (%d)\n", status);
812 status = ath10k_bmi_done(ar);
816 status = ath10k_wmi_attach(ar);
818 ath10k_err(ar, "WMI attach failed: %d\n", status);
822 status = ath10k_htt_init(ar);
824 ath10k_err(ar, "failed to init htt: %d\n", status);
828 status = ath10k_htt_tx_alloc(&ar->htt);
830 ath10k_err(ar, "failed to alloc htt tx: %d\n", status);
834 status = ath10k_htt_rx_alloc(&ar->htt);
836 ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
837 goto err_htt_tx_detach;
840 status = ath10k_hif_start(ar);
842 ath10k_err(ar, "could not start HIF: %d\n", status);
843 goto err_htt_rx_detach;
846 status = ath10k_htc_wait_target(&ar->htc);
848 ath10k_err(ar, "failed to connect to HTC: %d\n", status);
852 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
853 status = ath10k_htt_connect(&ar->htt);
855 ath10k_err(ar, "failed to connect htt (%d)\n", status);
860 status = ath10k_wmi_connect(ar);
862 ath10k_err(ar, "could not connect wmi: %d\n", status);
866 status = ath10k_htc_start(&ar->htc);
868 ath10k_err(ar, "failed to start htc: %d\n", status);
872 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
873 status = ath10k_wmi_wait_for_service_ready(ar);
875 ath10k_warn(ar, "wmi service ready event not received");
881 ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
882 ar->hw->wiphy->fw_version);
884 status = ath10k_wmi_cmd_init(ar);
886 ath10k_err(ar, "could not send WMI init command (%d)\n",
891 status = ath10k_wmi_wait_for_unified_ready(ar);
893 ath10k_err(ar, "wmi unified ready event not received\n");
898 /* we don't care about HTT in UTF mode */
899 if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
900 status = ath10k_htt_setup(&ar->htt);
902 ath10k_err(ar, "failed to setup htt: %d\n", status);
907 status = ath10k_debug_start(ar);
911 if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
912 ar->free_vdev_map = (1LL << TARGET_10X_NUM_VDEVS) - 1;
914 ar->free_vdev_map = (1LL << TARGET_NUM_VDEVS) - 1;
916 INIT_LIST_HEAD(&ar->arvifs);
923 ath10k_htt_rx_free(&ar->htt);
925 ath10k_htt_tx_free(&ar->htt);
927 ath10k_wmi_detach(ar);
931 EXPORT_SYMBOL(ath10k_core_start);
933 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt)
937 reinit_completion(&ar->target_suspend);
939 ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt);
941 ath10k_warn(ar, "could not suspend target (%d)\n", ret);
945 ret = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ);
948 ath10k_warn(ar, "suspend timed out - target pause event never came\n");
955 void ath10k_core_stop(struct ath10k *ar)
957 lockdep_assert_held(&ar->conf_mutex);
959 /* try to suspend target */
960 if (ar->state != ATH10K_STATE_RESTARTING &&
961 ar->state != ATH10K_STATE_UTF)
962 ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR);
964 ath10k_debug_stop(ar);
966 ath10k_htt_tx_free(&ar->htt);
967 ath10k_htt_rx_free(&ar->htt);
968 ath10k_wmi_detach(ar);
970 EXPORT_SYMBOL(ath10k_core_stop);
972 /* mac80211 manages fw/hw initialization through start/stop hooks. However in
973 * order to know what hw capabilities should be advertised to mac80211 it is
974 * necessary to load the firmware (and tear it down immediately since start
975 * hook will try to init it again) before registering */
976 static int ath10k_core_probe_fw(struct ath10k *ar)
978 struct bmi_target_info target_info;
981 ret = ath10k_hif_power_up(ar);
983 ath10k_err(ar, "could not start pci hif (%d)\n", ret);
987 memset(&target_info, 0, sizeof(target_info));
988 ret = ath10k_bmi_get_target_info(ar, &target_info);
990 ath10k_err(ar, "could not get target info (%d)\n", ret);
991 ath10k_hif_power_down(ar);
995 ar->target_version = target_info.version;
996 ar->hw->wiphy->hw_version = target_info.version;
998 ret = ath10k_init_hw_params(ar);
1000 ath10k_err(ar, "could not get hw params (%d)\n", ret);
1001 ath10k_hif_power_down(ar);
1005 ret = ath10k_core_fetch_firmware_files(ar);
1007 ath10k_err(ar, "could not fetch firmware files (%d)\n", ret);
1008 ath10k_hif_power_down(ar);
1012 mutex_lock(&ar->conf_mutex);
1014 ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
1016 ath10k_err(ar, "could not init core (%d)\n", ret);
1017 ath10k_core_free_firmware_files(ar);
1018 ath10k_hif_power_down(ar);
1019 mutex_unlock(&ar->conf_mutex);
1023 ath10k_print_driver_info(ar);
1024 ath10k_core_stop(ar);
1026 mutex_unlock(&ar->conf_mutex);
1028 ath10k_hif_power_down(ar);
1032 static int ath10k_core_check_chip_id(struct ath10k *ar)
1034 u32 hw_revision = MS(ar->chip_id, SOC_CHIP_ID_REV);
1036 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot chip_id 0x%08x hw_revision 0x%x\n",
1037 ar->chip_id, hw_revision);
1039 /* Check that we are not using hw1.0 (some of them have same pci id
1040 * as hw2.0) before doing anything else as ath10k crashes horribly
1041 * due to missing hw1.0 workarounds. */
1042 switch (hw_revision) {
1043 case QCA988X_HW_1_0_CHIP_ID_REV:
1044 ath10k_err(ar, "ERROR: qca988x hw1.0 is not supported\n");
1047 case QCA988X_HW_2_0_CHIP_ID_REV:
1048 /* known hardware revision, continue normally */
1052 ath10k_warn(ar, "Warning: hardware revision unknown (0x%x), expect problems\n",
1060 static void ath10k_core_register_work(struct work_struct *work)
1062 struct ath10k *ar = container_of(work, struct ath10k, register_work);
1065 status = ath10k_core_probe_fw(ar);
1067 ath10k_err(ar, "could not probe fw (%d)\n", status);
1071 status = ath10k_mac_register(ar);
1073 ath10k_err(ar, "could not register to mac80211 (%d)\n", status);
1074 goto err_release_fw;
1077 status = ath10k_debug_register(ar);
1079 ath10k_err(ar, "unable to initialize debugfs\n");
1080 goto err_unregister_mac;
1083 status = ath10k_spectral_create(ar);
1085 ath10k_err(ar, "failed to initialize spectral\n");
1086 goto err_debug_destroy;
1089 set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
1093 ath10k_debug_destroy(ar);
1095 ath10k_mac_unregister(ar);
1097 ath10k_core_free_firmware_files(ar);
1099 /* TODO: It's probably a good idea to release device from the driver
1100 * but calling device_release_driver() here will cause a deadlock.
1105 int ath10k_core_register(struct ath10k *ar, u32 chip_id)
1109 ar->chip_id = chip_id;
1111 status = ath10k_core_check_chip_id(ar);
1113 ath10k_err(ar, "Unsupported chip id 0x%08x\n", ar->chip_id);
1117 queue_work(ar->workqueue, &ar->register_work);
1121 EXPORT_SYMBOL(ath10k_core_register);
1123 void ath10k_core_unregister(struct ath10k *ar)
1125 cancel_work_sync(&ar->register_work);
1127 if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
1130 /* Stop spectral before unregistering from mac80211 to remove the
1131 * relayfs debugfs file cleanly. Otherwise the parent debugfs tree
1132 * would be already be free'd recursively, leading to a double free.
1134 ath10k_spectral_destroy(ar);
1136 /* We must unregister from mac80211 before we stop HTC and HIF.
1137 * Otherwise we will fail to submit commands to FW and mac80211 will be
1138 * unhappy about callback failures. */
1139 ath10k_mac_unregister(ar);
1141 ath10k_testmode_destroy(ar);
1143 ath10k_core_free_firmware_files(ar);
1145 ath10k_debug_unregister(ar);
1147 EXPORT_SYMBOL(ath10k_core_unregister);
1149 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
1150 enum ath10k_bus bus,
1151 const struct ath10k_hif_ops *hif_ops)
1156 ar = ath10k_mac_create(priv_size);
1160 ar->ath_common.priv = ar;
1161 ar->ath_common.hw = ar->hw;
1163 ar->p2p = !!ath10k_p2p;
1166 ar->hif.ops = hif_ops;
1169 init_completion(&ar->scan.started);
1170 init_completion(&ar->scan.completed);
1171 init_completion(&ar->scan.on_channel);
1172 init_completion(&ar->target_suspend);
1174 init_completion(&ar->install_key_done);
1175 init_completion(&ar->vdev_setup_done);
1177 INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work);
1179 ar->workqueue = create_singlethread_workqueue("ath10k_wq");
1183 mutex_init(&ar->conf_mutex);
1184 spin_lock_init(&ar->data_lock);
1186 INIT_LIST_HEAD(&ar->peers);
1187 init_waitqueue_head(&ar->peer_mapping_wq);
1189 init_completion(&ar->offchan_tx_completed);
1190 INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
1191 skb_queue_head_init(&ar->offchan_tx_queue);
1193 INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
1194 skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
1196 INIT_WORK(&ar->register_work, ath10k_core_register_work);
1197 INIT_WORK(&ar->restart_work, ath10k_core_restart);
1199 ret = ath10k_debug_create(ar);
1206 destroy_workqueue(ar->workqueue);
1209 ath10k_mac_destroy(ar);
1213 EXPORT_SYMBOL(ath10k_core_create);
1215 void ath10k_core_destroy(struct ath10k *ar)
1217 flush_workqueue(ar->workqueue);
1218 destroy_workqueue(ar->workqueue);
1220 ath10k_debug_destroy(ar);
1221 ath10k_mac_destroy(ar);
1223 EXPORT_SYMBOL(ath10k_core_destroy);
1225 MODULE_AUTHOR("Qualcomm Atheros");
1226 MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
1227 MODULE_LICENSE("Dual BSD/GPL");