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>
30 unsigned int ath10k_debug_mask;
31 static bool uart_print;
32 static unsigned int ath10k_p2p;
33 module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
34 module_param(uart_print, bool, 0644);
35 module_param_named(p2p, ath10k_p2p, uint, 0644);
36 MODULE_PARM_DESC(debug_mask, "Debugging mask");
37 MODULE_PARM_DESC(uart_print, "Uart target debugging");
38 MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
40 static const struct ath10k_hw_params ath10k_hw_params_list[] = {
42 .id = QCA988X_HW_2_0_VERSION,
43 .name = "qca988x hw2.0",
44 .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
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,
54 static void ath10k_send_suspend_complete(struct ath10k *ar)
56 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n");
58 complete(&ar->target_suspend);
61 static int ath10k_init_configure_target(struct ath10k *ar)
66 /* tell target which HTC version it is used*/
67 ret = ath10k_bmi_write32(ar, hi_app_host_interest,
68 HTC_PROTOCOL_VERSION);
70 ath10k_err(ar, "settings HTC version failed\n");
74 /* set the firmware mode to STA/IBSS/AP */
75 ret = ath10k_bmi_read32(ar, hi_option_flag, ¶m_host);
77 ath10k_err(ar, "setting firmware mode (1/2) failed\n");
81 /* TODO following parameters need to be re-visited. */
83 param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
85 /* FIXME: Why FW_MODE_AP ??.*/
86 param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
88 param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
90 param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
92 param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
94 ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
96 ath10k_err(ar, "setting firmware mode (2/2) failed\n");
100 /* We do all byte-swapping on the host */
101 ret = ath10k_bmi_write32(ar, hi_be, 0);
103 ath10k_err(ar, "setting host CPU BE mode failed\n");
107 /* FW descriptor/Data swap flags */
108 ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
111 ath10k_err(ar, "setting FW data/desc swap flags failed\n");
118 static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
123 const struct firmware *fw;
127 return ERR_PTR(-ENOENT);
132 snprintf(filename, sizeof(filename), "%s/%s", dir, file);
133 ret = request_firmware(&fw, filename, ar->dev);
140 static int ath10k_push_board_ext_data(struct ath10k *ar)
142 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
143 u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
144 u32 board_ext_data_addr;
147 ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
149 ath10k_err(ar, "could not read board ext data addr (%d)\n",
154 ath10k_dbg(ar, ATH10K_DBG_BOOT,
155 "boot push board extended data addr 0x%x\n",
156 board_ext_data_addr);
158 if (board_ext_data_addr == 0)
161 if (ar->board_len != (board_data_size + board_ext_data_size)) {
162 ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n",
163 ar->board_len, board_data_size, board_ext_data_size);
167 ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
168 ar->board_data + board_data_size,
169 board_ext_data_size);
171 ath10k_err(ar, "could not write board ext data (%d)\n", ret);
175 ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
176 (board_ext_data_size << 16) | 1);
178 ath10k_err(ar, "could not write board ext data bit (%d)\n",
186 static int ath10k_download_board_data(struct ath10k *ar)
188 u32 board_data_size = QCA988X_BOARD_DATA_SZ;
192 ret = ath10k_push_board_ext_data(ar);
194 ath10k_err(ar, "could not push board ext data (%d)\n", ret);
198 ret = ath10k_bmi_read32(ar, hi_board_data, &address);
200 ath10k_err(ar, "could not read board data addr (%d)\n", ret);
204 ret = ath10k_bmi_write_memory(ar, address, ar->board_data,
205 min_t(u32, board_data_size,
208 ath10k_err(ar, "could not write board data (%d)\n", ret);
212 ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
214 ath10k_err(ar, "could not write board data bit (%d)\n", ret);
222 static int ath10k_download_and_run_otp(struct ath10k *ar)
224 u32 result, address = ar->hw_params.patch_load_addr;
227 /* OTP is optional */
229 if (!ar->otp_data || !ar->otp_len) {
230 ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
231 ar->otp_data, ar->otp_len);
235 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
236 address, ar->otp_len);
238 ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
240 ath10k_err(ar, "could not write otp (%d)\n", ret);
244 ret = ath10k_bmi_execute(ar, address, 0, &result);
246 ath10k_err(ar, "could not execute otp (%d)\n", ret);
250 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
253 ath10k_err(ar, "otp calibration failed: %d", result);
260 static int ath10k_download_fw(struct ath10k *ar)
265 address = ar->hw_params.patch_load_addr;
267 ret = ath10k_bmi_fast_download(ar, address, ar->firmware_data,
270 ath10k_err(ar, "could not write fw (%d)\n", ret);
278 static void ath10k_core_free_firmware_files(struct ath10k *ar)
280 if (ar->board && !IS_ERR(ar->board))
281 release_firmware(ar->board);
283 if (ar->otp && !IS_ERR(ar->otp))
284 release_firmware(ar->otp);
286 if (ar->firmware && !IS_ERR(ar->firmware))
287 release_firmware(ar->firmware);
290 ar->board_data = NULL;
298 ar->firmware_data = NULL;
299 ar->firmware_len = 0;
302 static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
306 if (ar->hw_params.fw.fw == NULL) {
307 ath10k_err(ar, "firmware file not defined\n");
311 if (ar->hw_params.fw.board == NULL) {
312 ath10k_err(ar, "board data file not defined");
316 ar->board = ath10k_fetch_fw_file(ar,
317 ar->hw_params.fw.dir,
318 ar->hw_params.fw.board);
319 if (IS_ERR(ar->board)) {
320 ret = PTR_ERR(ar->board);
321 ath10k_err(ar, "could not fetch board data (%d)\n", ret);
325 ar->board_data = ar->board->data;
326 ar->board_len = ar->board->size;
328 ar->firmware = ath10k_fetch_fw_file(ar,
329 ar->hw_params.fw.dir,
330 ar->hw_params.fw.fw);
331 if (IS_ERR(ar->firmware)) {
332 ret = PTR_ERR(ar->firmware);
333 ath10k_err(ar, "could not fetch firmware (%d)\n", ret);
337 ar->firmware_data = ar->firmware->data;
338 ar->firmware_len = ar->firmware->size;
340 /* OTP may be undefined. If so, don't fetch it at all */
341 if (ar->hw_params.fw.otp == NULL)
344 ar->otp = ath10k_fetch_fw_file(ar,
345 ar->hw_params.fw.dir,
346 ar->hw_params.fw.otp);
347 if (IS_ERR(ar->otp)) {
348 ret = PTR_ERR(ar->otp);
349 ath10k_err(ar, "could not fetch otp (%d)\n", ret);
353 ar->otp_data = ar->otp->data;
354 ar->otp_len = ar->otp->size;
359 ath10k_core_free_firmware_files(ar);
363 static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
365 size_t magic_len, len, ie_len;
366 int ie_id, i, index, bit, ret;
367 struct ath10k_fw_ie *hdr;
371 /* first fetch the firmware file (firmware-*.bin) */
372 ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
373 if (IS_ERR(ar->firmware)) {
374 ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
375 ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
376 return PTR_ERR(ar->firmware);
379 data = ar->firmware->data;
380 len = ar->firmware->size;
382 /* magic also includes the null byte, check that as well */
383 magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
385 if (len < magic_len) {
386 ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n",
387 ar->hw_params.fw.dir, name, len);
392 if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
393 ath10k_err(ar, "invalid firmware magic\n");
398 /* jump over the padding */
399 magic_len = ALIGN(magic_len, 4);
405 while (len > sizeof(struct ath10k_fw_ie)) {
406 hdr = (struct ath10k_fw_ie *)data;
408 ie_id = le32_to_cpu(hdr->id);
409 ie_len = le32_to_cpu(hdr->len);
412 data += sizeof(*hdr);
415 ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n",
422 case ATH10K_FW_IE_FW_VERSION:
423 if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
426 memcpy(ar->hw->wiphy->fw_version, data, ie_len);
427 ar->hw->wiphy->fw_version[ie_len] = '\0';
429 ath10k_dbg(ar, ATH10K_DBG_BOOT,
430 "found fw version %s\n",
431 ar->hw->wiphy->fw_version);
433 case ATH10K_FW_IE_TIMESTAMP:
434 if (ie_len != sizeof(u32))
437 timestamp = (__le32 *)data;
439 ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n",
440 le32_to_cpup(timestamp));
442 case ATH10K_FW_IE_FEATURES:
443 ath10k_dbg(ar, ATH10K_DBG_BOOT,
444 "found firmware features ie (%zd B)\n",
447 for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
454 if (data[index] & (1 << bit)) {
455 ath10k_dbg(ar, ATH10K_DBG_BOOT,
456 "Enabling feature bit: %i\n",
458 __set_bit(i, ar->fw_features);
462 ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "",
464 sizeof(ar->fw_features));
466 case ATH10K_FW_IE_FW_IMAGE:
467 ath10k_dbg(ar, ATH10K_DBG_BOOT,
468 "found fw image ie (%zd B)\n",
471 ar->firmware_data = data;
472 ar->firmware_len = ie_len;
475 case ATH10K_FW_IE_OTP_IMAGE:
476 ath10k_dbg(ar, ATH10K_DBG_BOOT,
477 "found otp image ie (%zd B)\n",
481 ar->otp_len = ie_len;
485 ath10k_warn(ar, "Unknown FW IE: %u\n",
486 le32_to_cpu(hdr->id));
490 /* jump over the padding */
491 ie_len = ALIGN(ie_len, 4);
497 if (!ar->firmware_data || !ar->firmware_len) {
498 ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
499 ar->hw_params.fw.dir, name);
504 if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) &&
505 !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
506 ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well");
511 /* now fetch the board file */
512 if (ar->hw_params.fw.board == NULL) {
513 ath10k_err(ar, "board data file not defined");
518 ar->board = ath10k_fetch_fw_file(ar,
519 ar->hw_params.fw.dir,
520 ar->hw_params.fw.board);
521 if (IS_ERR(ar->board)) {
522 ret = PTR_ERR(ar->board);
523 ath10k_err(ar, "could not fetch board data '%s/%s' (%d)\n",
524 ar->hw_params.fw.dir, ar->hw_params.fw.board,
529 ar->board_data = ar->board->data;
530 ar->board_len = ar->board->size;
535 ath10k_core_free_firmware_files(ar);
539 static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
544 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
546 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE);
551 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
553 ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
558 ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
560 ret = ath10k_core_fetch_firmware_api_1(ar);
565 ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
570 static int ath10k_init_download_firmware(struct ath10k *ar)
574 ret = ath10k_download_board_data(ar);
576 ath10k_err(ar, "failed to download board data: %d\n", ret);
580 ret = ath10k_download_and_run_otp(ar);
582 ath10k_err(ar, "failed to run otp: %d\n", ret);
586 ret = ath10k_download_fw(ar);
588 ath10k_err(ar, "failed to download firmware: %d\n", ret);
595 static int ath10k_init_uart(struct ath10k *ar)
600 * Explicitly setting UART prints to zero as target turns it on
601 * based on scratch registers.
603 ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
605 ath10k_warn(ar, "could not disable UART prints (%d)\n", ret);
612 ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
614 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
618 ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
620 ath10k_warn(ar, "could not enable UART prints (%d)\n", ret);
624 /* Set the UART baud rate to 19200. */
625 ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
627 ath10k_warn(ar, "could not set the baud rate (%d)\n", ret);
631 ath10k_info(ar, "UART prints enabled\n");
635 static int ath10k_init_hw_params(struct ath10k *ar)
637 const struct ath10k_hw_params *uninitialized_var(hw_params);
640 for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
641 hw_params = &ath10k_hw_params_list[i];
643 if (hw_params->id == ar->target_version)
647 if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
648 ath10k_err(ar, "Unsupported hardware version: 0x%x\n",
653 ar->hw_params = *hw_params;
655 ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n",
656 ar->hw_params.name, ar->target_version);
661 static void ath10k_core_restart(struct work_struct *work)
663 struct ath10k *ar = container_of(work, struct ath10k, restart_work);
665 mutex_lock(&ar->conf_mutex);
668 case ATH10K_STATE_ON:
669 ar->state = ATH10K_STATE_RESTARTING;
671 ath10k_scan_finish(ar);
672 ieee80211_restart_hw(ar->hw);
674 case ATH10K_STATE_OFF:
675 /* this can happen if driver is being unloaded
676 * or if the crash happens during FW probing */
677 ath10k_warn(ar, "cannot restart a device that hasn't been started\n");
679 case ATH10K_STATE_RESTARTING:
680 /* hw restart might be requested from multiple places */
682 case ATH10K_STATE_RESTARTED:
683 ar->state = ATH10K_STATE_WEDGED;
685 case ATH10K_STATE_WEDGED:
686 ath10k_warn(ar, "device is wedged, will not restart\n");
690 mutex_unlock(&ar->conf_mutex);
693 int ath10k_core_start(struct ath10k *ar)
697 lockdep_assert_held(&ar->conf_mutex);
699 ath10k_bmi_start(ar);
701 if (ath10k_init_configure_target(ar)) {
706 status = ath10k_init_download_firmware(ar);
710 status = ath10k_init_uart(ar);
714 ar->htc.htc_ops.target_send_suspend_complete =
715 ath10k_send_suspend_complete;
717 status = ath10k_htc_init(ar);
719 ath10k_err(ar, "could not init HTC (%d)\n", status);
723 status = ath10k_bmi_done(ar);
727 status = ath10k_wmi_attach(ar);
729 ath10k_err(ar, "WMI attach failed: %d\n", status);
733 status = ath10k_htt_init(ar);
735 ath10k_err(ar, "failed to init htt: %d\n", status);
739 status = ath10k_htt_tx_alloc(&ar->htt);
741 ath10k_err(ar, "failed to alloc htt tx: %d\n", status);
745 status = ath10k_htt_rx_alloc(&ar->htt);
747 ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
748 goto err_htt_tx_detach;
751 status = ath10k_hif_start(ar);
753 ath10k_err(ar, "could not start HIF: %d\n", status);
754 goto err_htt_rx_detach;
757 status = ath10k_htc_wait_target(&ar->htc);
759 ath10k_err(ar, "failed to connect to HTC: %d\n", status);
763 status = ath10k_htt_connect(&ar->htt);
765 ath10k_err(ar, "failed to connect htt (%d)\n", status);
769 status = ath10k_wmi_connect(ar);
771 ath10k_err(ar, "could not connect wmi: %d\n", status);
775 status = ath10k_htc_start(&ar->htc);
777 ath10k_err(ar, "failed to start htc: %d\n", status);
781 status = ath10k_wmi_wait_for_service_ready(ar);
783 ath10k_warn(ar, "wmi service ready event not received");
788 ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
789 ar->hw->wiphy->fw_version);
791 status = ath10k_wmi_cmd_init(ar);
793 ath10k_err(ar, "could not send WMI init command (%d)\n",
798 status = ath10k_wmi_wait_for_unified_ready(ar);
800 ath10k_err(ar, "wmi unified ready event not received\n");
805 status = ath10k_htt_setup(&ar->htt);
807 ath10k_err(ar, "failed to setup htt: %d\n", status);
811 status = ath10k_debug_start(ar);
815 if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
816 ar->free_vdev_map = (1 << TARGET_10X_NUM_VDEVS) - 1;
818 ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1;
820 INIT_LIST_HEAD(&ar->arvifs);
827 ath10k_htt_rx_free(&ar->htt);
829 ath10k_htt_tx_free(&ar->htt);
831 ath10k_wmi_detach(ar);
835 EXPORT_SYMBOL(ath10k_core_start);
837 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt)
841 reinit_completion(&ar->target_suspend);
843 ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt);
845 ath10k_warn(ar, "could not suspend target (%d)\n", ret);
849 ret = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ);
852 ath10k_warn(ar, "suspend timed out - target pause event never came\n");
859 void ath10k_core_stop(struct ath10k *ar)
861 lockdep_assert_held(&ar->conf_mutex);
863 /* try to suspend target */
864 if (ar->state != ATH10K_STATE_RESTARTING)
865 ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR);
867 ath10k_debug_stop(ar);
869 ath10k_htt_tx_free(&ar->htt);
870 ath10k_htt_rx_free(&ar->htt);
871 ath10k_wmi_detach(ar);
873 EXPORT_SYMBOL(ath10k_core_stop);
875 /* mac80211 manages fw/hw initialization through start/stop hooks. However in
876 * order to know what hw capabilities should be advertised to mac80211 it is
877 * necessary to load the firmware (and tear it down immediately since start
878 * hook will try to init it again) before registering */
879 static int ath10k_core_probe_fw(struct ath10k *ar)
881 struct bmi_target_info target_info;
884 ret = ath10k_hif_power_up(ar);
886 ath10k_err(ar, "could not start pci hif (%d)\n", ret);
890 memset(&target_info, 0, sizeof(target_info));
891 ret = ath10k_bmi_get_target_info(ar, &target_info);
893 ath10k_err(ar, "could not get target info (%d)\n", ret);
894 ath10k_hif_power_down(ar);
898 ar->target_version = target_info.version;
899 ar->hw->wiphy->hw_version = target_info.version;
901 ret = ath10k_init_hw_params(ar);
903 ath10k_err(ar, "could not get hw params (%d)\n", ret);
904 ath10k_hif_power_down(ar);
908 ret = ath10k_core_fetch_firmware_files(ar);
910 ath10k_err(ar, "could not fetch firmware files (%d)\n", ret);
911 ath10k_hif_power_down(ar);
915 mutex_lock(&ar->conf_mutex);
917 ret = ath10k_core_start(ar);
919 ath10k_err(ar, "could not init core (%d)\n", ret);
920 ath10k_core_free_firmware_files(ar);
921 ath10k_hif_power_down(ar);
922 mutex_unlock(&ar->conf_mutex);
926 ath10k_print_driver_info(ar);
927 ath10k_core_stop(ar);
929 mutex_unlock(&ar->conf_mutex);
931 ath10k_hif_power_down(ar);
935 static int ath10k_core_check_chip_id(struct ath10k *ar)
937 u32 hw_revision = MS(ar->chip_id, SOC_CHIP_ID_REV);
939 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot chip_id 0x%08x hw_revision 0x%x\n",
940 ar->chip_id, hw_revision);
942 /* Check that we are not using hw1.0 (some of them have same pci id
943 * as hw2.0) before doing anything else as ath10k crashes horribly
944 * due to missing hw1.0 workarounds. */
945 switch (hw_revision) {
946 case QCA988X_HW_1_0_CHIP_ID_REV:
947 ath10k_err(ar, "ERROR: qca988x hw1.0 is not supported\n");
950 case QCA988X_HW_2_0_CHIP_ID_REV:
951 /* known hardware revision, continue normally */
955 ath10k_warn(ar, "Warning: hardware revision unknown (0x%x), expect problems\n",
963 static void ath10k_core_register_work(struct work_struct *work)
965 struct ath10k *ar = container_of(work, struct ath10k, register_work);
968 status = ath10k_core_probe_fw(ar);
970 ath10k_err(ar, "could not probe fw (%d)\n", status);
974 status = ath10k_mac_register(ar);
976 ath10k_err(ar, "could not register to mac80211 (%d)\n", status);
980 status = ath10k_debug_register(ar);
982 ath10k_err(ar, "unable to initialize debugfs\n");
983 goto err_unregister_mac;
986 status = ath10k_spectral_create(ar);
988 ath10k_err(ar, "failed to initialize spectral\n");
989 goto err_debug_destroy;
992 set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags);
996 ath10k_debug_destroy(ar);
998 ath10k_mac_unregister(ar);
1000 ath10k_core_free_firmware_files(ar);
1002 /* TODO: It's probably a good idea to release device from the driver
1003 * but calling device_release_driver() here will cause a deadlock.
1008 int ath10k_core_register(struct ath10k *ar, u32 chip_id)
1012 ar->chip_id = chip_id;
1014 status = ath10k_core_check_chip_id(ar);
1016 ath10k_err(ar, "Unsupported chip id 0x%08x\n", ar->chip_id);
1020 queue_work(ar->workqueue, &ar->register_work);
1024 EXPORT_SYMBOL(ath10k_core_register);
1026 void ath10k_core_unregister(struct ath10k *ar)
1028 cancel_work_sync(&ar->register_work);
1030 if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
1033 /* Stop spectral before unregistering from mac80211 to remove the
1034 * relayfs debugfs file cleanly. Otherwise the parent debugfs tree
1035 * would be already be free'd recursively, leading to a double free.
1037 ath10k_spectral_destroy(ar);
1039 /* We must unregister from mac80211 before we stop HTC and HIF.
1040 * Otherwise we will fail to submit commands to FW and mac80211 will be
1041 * unhappy about callback failures. */
1042 ath10k_mac_unregister(ar);
1044 ath10k_core_free_firmware_files(ar);
1046 ath10k_debug_unregister(ar);
1048 EXPORT_SYMBOL(ath10k_core_unregister);
1050 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
1051 const struct ath10k_hif_ops *hif_ops)
1056 ar = ath10k_mac_create(priv_size);
1060 ar->ath_common.priv = ar;
1061 ar->ath_common.hw = ar->hw;
1063 ar->p2p = !!ath10k_p2p;
1066 ar->hif.ops = hif_ops;
1068 init_completion(&ar->scan.started);
1069 init_completion(&ar->scan.completed);
1070 init_completion(&ar->scan.on_channel);
1071 init_completion(&ar->target_suspend);
1073 init_completion(&ar->install_key_done);
1074 init_completion(&ar->vdev_setup_done);
1076 INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work);
1078 ar->workqueue = create_singlethread_workqueue("ath10k_wq");
1082 mutex_init(&ar->conf_mutex);
1083 spin_lock_init(&ar->data_lock);
1085 INIT_LIST_HEAD(&ar->peers);
1086 init_waitqueue_head(&ar->peer_mapping_wq);
1088 init_completion(&ar->offchan_tx_completed);
1089 INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
1090 skb_queue_head_init(&ar->offchan_tx_queue);
1092 INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
1093 skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
1095 INIT_WORK(&ar->register_work, ath10k_core_register_work);
1096 INIT_WORK(&ar->restart_work, ath10k_core_restart);
1098 ret = ath10k_debug_create(ar);
1105 destroy_workqueue(ar->workqueue);
1108 ath10k_mac_destroy(ar);
1112 EXPORT_SYMBOL(ath10k_core_create);
1114 void ath10k_core_destroy(struct ath10k *ar)
1116 flush_workqueue(ar->workqueue);
1117 destroy_workqueue(ar->workqueue);
1119 ath10k_debug_destroy(ar);
1120 ath10k_mac_destroy(ar);
1122 EXPORT_SYMBOL(ath10k_core_destroy);
1124 MODULE_AUTHOR("Qualcomm Atheros");
1125 MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
1126 MODULE_LICENSE("Dual BSD/GPL");