| /* |
| * Copyright (c) 2005-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2013 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/firmware.h> |
| #include <linux/of.h> |
| |
| #include "core.h" |
| #include "mac.h" |
| #include "htc.h" |
| #include "hif.h" |
| #include "wmi.h" |
| #include "bmi.h" |
| #include "debug.h" |
| #include "htt.h" |
| #include "testmode.h" |
| #include "wmi-ops.h" |
| |
| unsigned int ath10k_debug_mask; |
| static bool uart_print; |
| static bool skip_otp; |
| |
| module_param_named(debug_mask, ath10k_debug_mask, uint, 0644); |
| module_param(uart_print, bool, 0644); |
| module_param(skip_otp, bool, 0644); |
| |
| MODULE_PARM_DESC(debug_mask, "Debugging mask"); |
| MODULE_PARM_DESC(uart_print, "Uart target debugging"); |
| MODULE_PARM_DESC(skip_otp, "Skip otp failure for calibration in testmode"); |
| |
| static const struct ath10k_hw_params ath10k_hw_params_list[] = { |
| { |
| .id = QCA988X_HW_2_0_VERSION, |
| .name = "qca988x hw2.0", |
| .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR, |
| .uart_pin = 7, |
| .has_shifted_cc_wraparound = true, |
| .fw = { |
| .dir = QCA988X_HW_2_0_FW_DIR, |
| .fw = QCA988X_HW_2_0_FW_FILE, |
| .otp = QCA988X_HW_2_0_OTP_FILE, |
| .board = QCA988X_HW_2_0_BOARD_DATA_FILE, |
| .board_size = QCA988X_BOARD_DATA_SZ, |
| .board_ext_size = QCA988X_BOARD_EXT_DATA_SZ, |
| }, |
| }, |
| { |
| .id = QCA6174_HW_2_1_VERSION, |
| .name = "qca6174 hw2.1", |
| .patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR, |
| .uart_pin = 6, |
| .fw = { |
| .dir = QCA6174_HW_2_1_FW_DIR, |
| .fw = QCA6174_HW_2_1_FW_FILE, |
| .otp = QCA6174_HW_2_1_OTP_FILE, |
| .board = QCA6174_HW_2_1_BOARD_DATA_FILE, |
| .board_size = QCA6174_BOARD_DATA_SZ, |
| .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ, |
| }, |
| }, |
| { |
| .id = QCA6174_HW_3_0_VERSION, |
| .name = "qca6174 hw3.0", |
| .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR, |
| .uart_pin = 6, |
| .fw = { |
| .dir = QCA6174_HW_3_0_FW_DIR, |
| .fw = QCA6174_HW_3_0_FW_FILE, |
| .otp = QCA6174_HW_3_0_OTP_FILE, |
| .board = QCA6174_HW_3_0_BOARD_DATA_FILE, |
| .board_size = QCA6174_BOARD_DATA_SZ, |
| .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ, |
| }, |
| }, |
| { |
| .id = QCA6174_HW_3_2_VERSION, |
| .name = "qca6174 hw3.2", |
| .patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR, |
| .uart_pin = 6, |
| .fw = { |
| /* uses same binaries as hw3.0 */ |
| .dir = QCA6174_HW_3_0_FW_DIR, |
| .fw = QCA6174_HW_3_0_FW_FILE, |
| .otp = QCA6174_HW_3_0_OTP_FILE, |
| .board = QCA6174_HW_3_0_BOARD_DATA_FILE, |
| .board_size = QCA6174_BOARD_DATA_SZ, |
| .board_ext_size = QCA6174_BOARD_EXT_DATA_SZ, |
| }, |
| }, |
| }; |
| |
| static const char *const ath10k_core_fw_feature_str[] = { |
| [ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX] = "wmi-mgmt-rx", |
| [ATH10K_FW_FEATURE_WMI_10X] = "wmi-10.x", |
| [ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX] = "has-wmi-mgmt-tx", |
| [ATH10K_FW_FEATURE_NO_P2P] = "no-p2p", |
| [ATH10K_FW_FEATURE_WMI_10_2] = "wmi-10.2", |
| [ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT] = "multi-vif-ps", |
| [ATH10K_FW_FEATURE_WOWLAN_SUPPORT] = "wowlan", |
| [ATH10K_FW_FEATURE_IGNORE_OTP_RESULT] = "ignore-otp", |
| [ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING] = "no-4addr-pad", |
| [ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT] = "skip-clock-init", |
| }; |
| |
| static unsigned int ath10k_core_get_fw_feature_str(char *buf, |
| size_t buf_len, |
| enum ath10k_fw_features feat) |
| { |
| if (feat >= ARRAY_SIZE(ath10k_core_fw_feature_str) || |
| WARN_ON(!ath10k_core_fw_feature_str[feat])) { |
| return scnprintf(buf, buf_len, "bit%d", feat); |
| } |
| |
| return scnprintf(buf, buf_len, "%s", ath10k_core_fw_feature_str[feat]); |
| } |
| |
| void ath10k_core_get_fw_features_str(struct ath10k *ar, |
| char *buf, |
| size_t buf_len) |
| { |
| unsigned int len = 0; |
| int i; |
| |
| for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) { |
| if (test_bit(i, ar->fw_features)) { |
| if (len > 0) |
| len += scnprintf(buf + len, buf_len - len, ","); |
| |
| len += ath10k_core_get_fw_feature_str(buf + len, |
| buf_len - len, |
| i); |
| } |
| } |
| } |
| |
| static void ath10k_send_suspend_complete(struct ath10k *ar) |
| { |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot suspend complete\n"); |
| |
| complete(&ar->target_suspend); |
| } |
| |
| static int ath10k_init_configure_target(struct ath10k *ar) |
| { |
| u32 param_host; |
| int ret; |
| |
| /* tell target which HTC version it is used*/ |
| ret = ath10k_bmi_write32(ar, hi_app_host_interest, |
| HTC_PROTOCOL_VERSION); |
| if (ret) { |
| ath10k_err(ar, "settings HTC version failed\n"); |
| return ret; |
| } |
| |
| /* set the firmware mode to STA/IBSS/AP */ |
| ret = ath10k_bmi_read32(ar, hi_option_flag, ¶m_host); |
| if (ret) { |
| ath10k_err(ar, "setting firmware mode (1/2) failed\n"); |
| return ret; |
| } |
| |
| /* TODO following parameters need to be re-visited. */ |
| /* num_device */ |
| param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT); |
| /* Firmware mode */ |
| /* FIXME: Why FW_MODE_AP ??.*/ |
| param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT); |
| /* mac_addr_method */ |
| param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); |
| /* firmware_bridge */ |
| param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); |
| /* fwsubmode */ |
| param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT); |
| |
| ret = ath10k_bmi_write32(ar, hi_option_flag, param_host); |
| if (ret) { |
| ath10k_err(ar, "setting firmware mode (2/2) failed\n"); |
| return ret; |
| } |
| |
| /* We do all byte-swapping on the host */ |
| ret = ath10k_bmi_write32(ar, hi_be, 0); |
| if (ret) { |
| ath10k_err(ar, "setting host CPU BE mode failed\n"); |
| return ret; |
| } |
| |
| /* FW descriptor/Data swap flags */ |
| ret = ath10k_bmi_write32(ar, hi_fw_swap, 0); |
| |
| if (ret) { |
| ath10k_err(ar, "setting FW data/desc swap flags failed\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar, |
| const char *dir, |
| const char *file) |
| { |
| char filename[100]; |
| const struct firmware *fw; |
| int ret; |
| |
| if (file == NULL) |
| return ERR_PTR(-ENOENT); |
| |
| if (dir == NULL) |
| dir = "."; |
| |
| snprintf(filename, sizeof(filename), "%s/%s", dir, file); |
| ret = request_firmware(&fw, filename, ar->dev); |
| if (ret) |
| return ERR_PTR(ret); |
| |
| return fw; |
| } |
| |
| static int ath10k_push_board_ext_data(struct ath10k *ar, const void *data, |
| size_t data_len) |
| { |
| u32 board_data_size = ar->hw_params.fw.board_size; |
| u32 board_ext_data_size = ar->hw_params.fw.board_ext_size; |
| u32 board_ext_data_addr; |
| int ret; |
| |
| ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr); |
| if (ret) { |
| ath10k_err(ar, "could not read board ext data addr (%d)\n", |
| ret); |
| return ret; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "boot push board extended data addr 0x%x\n", |
| board_ext_data_addr); |
| |
| if (board_ext_data_addr == 0) |
| return 0; |
| |
| if (data_len != (board_data_size + board_ext_data_size)) { |
| ath10k_err(ar, "invalid board (ext) data sizes %zu != %d+%d\n", |
| data_len, board_data_size, board_ext_data_size); |
| return -EINVAL; |
| } |
| |
| ret = ath10k_bmi_write_memory(ar, board_ext_data_addr, |
| data + board_data_size, |
| board_ext_data_size); |
| if (ret) { |
| ath10k_err(ar, "could not write board ext data (%d)\n", ret); |
| return ret; |
| } |
| |
| ret = ath10k_bmi_write32(ar, hi_board_ext_data_config, |
| (board_ext_data_size << 16) | 1); |
| if (ret) { |
| ath10k_err(ar, "could not write board ext data bit (%d)\n", |
| ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int ath10k_download_board_data(struct ath10k *ar, const void *data, |
| size_t data_len) |
| { |
| u32 board_data_size = ar->hw_params.fw.board_size; |
| u32 address; |
| int ret; |
| |
| ret = ath10k_push_board_ext_data(ar, data, data_len); |
| if (ret) { |
| ath10k_err(ar, "could not push board ext data (%d)\n", ret); |
| goto exit; |
| } |
| |
| ret = ath10k_bmi_read32(ar, hi_board_data, &address); |
| if (ret) { |
| ath10k_err(ar, "could not read board data addr (%d)\n", ret); |
| goto exit; |
| } |
| |
| ret = ath10k_bmi_write_memory(ar, address, data, |
| min_t(u32, board_data_size, |
| data_len)); |
| if (ret) { |
| ath10k_err(ar, "could not write board data (%d)\n", ret); |
| goto exit; |
| } |
| |
| ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1); |
| if (ret) { |
| ath10k_err(ar, "could not write board data bit (%d)\n", ret); |
| goto exit; |
| } |
| |
| exit: |
| return ret; |
| } |
| |
| static int ath10k_download_cal_file(struct ath10k *ar) |
| { |
| int ret; |
| |
| if (!ar->cal_file) |
| return -ENOENT; |
| |
| if (IS_ERR(ar->cal_file)) |
| return PTR_ERR(ar->cal_file); |
| |
| ret = ath10k_download_board_data(ar, ar->cal_file->data, |
| ar->cal_file->size); |
| if (ret) { |
| ath10k_err(ar, "failed to download cal_file data: %d\n", ret); |
| return ret; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot cal file downloaded\n"); |
| |
| return 0; |
| } |
| |
| static int ath10k_download_cal_dt(struct ath10k *ar) |
| { |
| struct device_node *node; |
| int data_len; |
| void *data; |
| int ret; |
| |
| node = ar->dev->of_node; |
| if (!node) |
| /* Device Tree is optional, don't print any warnings if |
| * there's no node for ath10k. |
| */ |
| return -ENOENT; |
| |
| if (!of_get_property(node, "qcom,ath10k-calibration-data", |
| &data_len)) { |
| /* The calibration data node is optional */ |
| return -ENOENT; |
| } |
| |
| if (data_len != QCA988X_CAL_DATA_LEN) { |
| ath10k_warn(ar, "invalid calibration data length in DT: %d\n", |
| data_len); |
| ret = -EMSGSIZE; |
| goto out; |
| } |
| |
| data = kmalloc(data_len, GFP_KERNEL); |
| if (!data) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| ret = of_property_read_u8_array(node, "qcom,ath10k-calibration-data", |
| data, data_len); |
| if (ret) { |
| ath10k_warn(ar, "failed to read calibration data from DT: %d\n", |
| ret); |
| goto out_free; |
| } |
| |
| ret = ath10k_download_board_data(ar, data, data_len); |
| if (ret) { |
| ath10k_warn(ar, "failed to download calibration data from Device Tree: %d\n", |
| ret); |
| goto out_free; |
| } |
| |
| ret = 0; |
| |
| out_free: |
| kfree(data); |
| |
| out: |
| return ret; |
| } |
| |
| static int ath10k_download_and_run_otp(struct ath10k *ar) |
| { |
| u32 result, address = ar->hw_params.patch_load_addr; |
| int ret; |
| |
| ret = ath10k_download_board_data(ar, ar->board_data, ar->board_len); |
| if (ret) { |
| ath10k_err(ar, "failed to download board data: %d\n", ret); |
| return ret; |
| } |
| |
| /* OTP is optional */ |
| |
| if (!ar->otp_data || !ar->otp_len) { |
| ath10k_warn(ar, "Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n", |
| ar->otp_data, ar->otp_len); |
| return 0; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n", |
| address, ar->otp_len); |
| |
| ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len); |
| if (ret) { |
| ath10k_err(ar, "could not write otp (%d)\n", ret); |
| return ret; |
| } |
| |
| ret = ath10k_bmi_execute(ar, address, 0, &result); |
| if (ret) { |
| ath10k_err(ar, "could not execute otp (%d)\n", ret); |
| return ret; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot otp execute result %d\n", result); |
| |
| if (!(skip_otp || test_bit(ATH10K_FW_FEATURE_IGNORE_OTP_RESULT, |
| ar->fw_features)) |
| && result != 0) { |
| ath10k_err(ar, "otp calibration failed: %d", result); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int ath10k_download_fw(struct ath10k *ar, enum ath10k_firmware_mode mode) |
| { |
| u32 address, data_len; |
| const char *mode_name; |
| const void *data; |
| int ret; |
| |
| address = ar->hw_params.patch_load_addr; |
| |
| switch (mode) { |
| case ATH10K_FIRMWARE_MODE_NORMAL: |
| data = ar->firmware_data; |
| data_len = ar->firmware_len; |
| mode_name = "normal"; |
| break; |
| case ATH10K_FIRMWARE_MODE_UTF: |
| data = ar->testmode.utf->data; |
| data_len = ar->testmode.utf->size; |
| mode_name = "utf"; |
| break; |
| default: |
| ath10k_err(ar, "unknown firmware mode: %d\n", mode); |
| return -EINVAL; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "boot uploading firmware image %p len %d mode %s\n", |
| data, data_len, mode_name); |
| |
| ret = ath10k_bmi_fast_download(ar, address, data, data_len); |
| if (ret) { |
| ath10k_err(ar, "failed to download %s firmware: %d\n", |
| mode_name, ret); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static void ath10k_core_free_firmware_files(struct ath10k *ar) |
| { |
| if (!IS_ERR(ar->board)) |
| release_firmware(ar->board); |
| |
| if (!IS_ERR(ar->otp)) |
| release_firmware(ar->otp); |
| |
| if (!IS_ERR(ar->firmware)) |
| release_firmware(ar->firmware); |
| |
| if (!IS_ERR(ar->cal_file)) |
| release_firmware(ar->cal_file); |
| |
| ar->board = NULL; |
| ar->board_data = NULL; |
| ar->board_len = 0; |
| |
| ar->otp = NULL; |
| ar->otp_data = NULL; |
| ar->otp_len = 0; |
| |
| ar->firmware = NULL; |
| ar->firmware_data = NULL; |
| ar->firmware_len = 0; |
| |
| ar->cal_file = NULL; |
| } |
| |
| static int ath10k_fetch_cal_file(struct ath10k *ar) |
| { |
| char filename[100]; |
| |
| /* cal-<bus>-<id>.bin */ |
| scnprintf(filename, sizeof(filename), "cal-%s-%s.bin", |
| ath10k_bus_str(ar->hif.bus), dev_name(ar->dev)); |
| |
| ar->cal_file = ath10k_fetch_fw_file(ar, ATH10K_FW_DIR, filename); |
| if (IS_ERR(ar->cal_file)) |
| /* calibration file is optional, don't print any warnings */ |
| return PTR_ERR(ar->cal_file); |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "found calibration file %s/%s\n", |
| ATH10K_FW_DIR, filename); |
| |
| return 0; |
| } |
| |
| static int ath10k_core_fetch_spec_board_file(struct ath10k *ar) |
| { |
| char filename[100]; |
| |
| scnprintf(filename, sizeof(filename), "board-%s-%s.bin", |
| ath10k_bus_str(ar->hif.bus), ar->spec_board_id); |
| |
| ar->board = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, filename); |
| if (IS_ERR(ar->board)) |
| return PTR_ERR(ar->board); |
| |
| ar->board_data = ar->board->data; |
| ar->board_len = ar->board->size; |
| ar->spec_board_loaded = true; |
| |
| return 0; |
| } |
| |
| static int ath10k_core_fetch_generic_board_file(struct ath10k *ar) |
| { |
| if (!ar->hw_params.fw.board) { |
| ath10k_err(ar, "failed to find board file fw entry\n"); |
| return -EINVAL; |
| } |
| |
| ar->board = ath10k_fetch_fw_file(ar, |
| ar->hw_params.fw.dir, |
| ar->hw_params.fw.board); |
| if (IS_ERR(ar->board)) |
| return PTR_ERR(ar->board); |
| |
| ar->board_data = ar->board->data; |
| ar->board_len = ar->board->size; |
| ar->spec_board_loaded = false; |
| |
| return 0; |
| } |
| |
| static int ath10k_core_fetch_board_file(struct ath10k *ar) |
| { |
| int ret; |
| |
| if (strlen(ar->spec_board_id) > 0) { |
| ret = ath10k_core_fetch_spec_board_file(ar); |
| if (ret) { |
| ath10k_info(ar, "failed to load spec board file, falling back to generic: %d\n", |
| ret); |
| goto generic; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "found specific board file for %s\n", |
| ar->spec_board_id); |
| return 0; |
| } |
| |
| generic: |
| ret = ath10k_core_fetch_generic_board_file(ar); |
| if (ret) { |
| ath10k_err(ar, "failed to fetch generic board data: %d\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar) |
| { |
| int ret = 0; |
| |
| if (ar->hw_params.fw.fw == NULL) { |
| ath10k_err(ar, "firmware file not defined\n"); |
| return -EINVAL; |
| } |
| |
| ar->firmware = ath10k_fetch_fw_file(ar, |
| ar->hw_params.fw.dir, |
| ar->hw_params.fw.fw); |
| if (IS_ERR(ar->firmware)) { |
| ret = PTR_ERR(ar->firmware); |
| ath10k_err(ar, "could not fetch firmware (%d)\n", ret); |
| goto err; |
| } |
| |
| ar->firmware_data = ar->firmware->data; |
| ar->firmware_len = ar->firmware->size; |
| |
| /* OTP may be undefined. If so, don't fetch it at all */ |
| if (ar->hw_params.fw.otp == NULL) |
| return 0; |
| |
| ar->otp = ath10k_fetch_fw_file(ar, |
| ar->hw_params.fw.dir, |
| ar->hw_params.fw.otp); |
| if (IS_ERR(ar->otp)) { |
| ret = PTR_ERR(ar->otp); |
| ath10k_err(ar, "could not fetch otp (%d)\n", ret); |
| goto err; |
| } |
| |
| ar->otp_data = ar->otp->data; |
| ar->otp_len = ar->otp->size; |
| |
| return 0; |
| |
| err: |
| ath10k_core_free_firmware_files(ar); |
| return ret; |
| } |
| |
| static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name) |
| { |
| size_t magic_len, len, ie_len; |
| int ie_id, i, index, bit, ret; |
| struct ath10k_fw_ie *hdr; |
| const u8 *data; |
| __le32 *timestamp, *version; |
| |
| /* first fetch the firmware file (firmware-*.bin) */ |
| ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name); |
| if (IS_ERR(ar->firmware)) { |
| ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n", |
| ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware)); |
| return PTR_ERR(ar->firmware); |
| } |
| |
| data = ar->firmware->data; |
| len = ar->firmware->size; |
| |
| /* magic also includes the null byte, check that as well */ |
| magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1; |
| |
| if (len < magic_len) { |
| ath10k_err(ar, "firmware file '%s/%s' too small to contain magic: %zu\n", |
| ar->hw_params.fw.dir, name, len); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) { |
| ath10k_err(ar, "invalid firmware magic\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| /* jump over the padding */ |
| magic_len = ALIGN(magic_len, 4); |
| |
| len -= magic_len; |
| data += magic_len; |
| |
| /* loop elements */ |
| while (len > sizeof(struct ath10k_fw_ie)) { |
| hdr = (struct ath10k_fw_ie *)data; |
| |
| ie_id = le32_to_cpu(hdr->id); |
| ie_len = le32_to_cpu(hdr->len); |
| |
| len -= sizeof(*hdr); |
| data += sizeof(*hdr); |
| |
| if (len < ie_len) { |
| ath10k_err(ar, "invalid length for FW IE %d (%zu < %zu)\n", |
| ie_id, len, ie_len); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| switch (ie_id) { |
| case ATH10K_FW_IE_FW_VERSION: |
| if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1) |
| break; |
| |
| memcpy(ar->hw->wiphy->fw_version, data, ie_len); |
| ar->hw->wiphy->fw_version[ie_len] = '\0'; |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "found fw version %s\n", |
| ar->hw->wiphy->fw_version); |
| break; |
| case ATH10K_FW_IE_TIMESTAMP: |
| if (ie_len != sizeof(u32)) |
| break; |
| |
| timestamp = (__le32 *)data; |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw timestamp %d\n", |
| le32_to_cpup(timestamp)); |
| break; |
| case ATH10K_FW_IE_FEATURES: |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "found firmware features ie (%zd B)\n", |
| ie_len); |
| |
| for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) { |
| index = i / 8; |
| bit = i % 8; |
| |
| if (index == ie_len) |
| break; |
| |
| if (data[index] & (1 << bit)) { |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "Enabling feature bit: %i\n", |
| i); |
| __set_bit(i, ar->fw_features); |
| } |
| } |
| |
| ath10k_dbg_dump(ar, ATH10K_DBG_BOOT, "features", "", |
| ar->fw_features, |
| sizeof(ar->fw_features)); |
| break; |
| case ATH10K_FW_IE_FW_IMAGE: |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "found fw image ie (%zd B)\n", |
| ie_len); |
| |
| ar->firmware_data = data; |
| ar->firmware_len = ie_len; |
| |
| break; |
| case ATH10K_FW_IE_OTP_IMAGE: |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "found otp image ie (%zd B)\n", |
| ie_len); |
| |
| ar->otp_data = data; |
| ar->otp_len = ie_len; |
| |
| break; |
| case ATH10K_FW_IE_WMI_OP_VERSION: |
| if (ie_len != sizeof(u32)) |
| break; |
| |
| version = (__le32 *)data; |
| |
| ar->wmi.op_version = le32_to_cpup(version); |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie wmi op version %d\n", |
| ar->wmi.op_version); |
| break; |
| case ATH10K_FW_IE_HTT_OP_VERSION: |
| if (ie_len != sizeof(u32)) |
| break; |
| |
| version = (__le32 *)data; |
| |
| ar->htt.op_version = le32_to_cpup(version); |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "found fw ie htt op version %d\n", |
| ar->htt.op_version); |
| break; |
| default: |
| ath10k_warn(ar, "Unknown FW IE: %u\n", |
| le32_to_cpu(hdr->id)); |
| break; |
| } |
| |
| /* jump over the padding */ |
| ie_len = ALIGN(ie_len, 4); |
| |
| len -= ie_len; |
| data += ie_len; |
| } |
| |
| if (!ar->firmware_data || !ar->firmware_len) { |
| ath10k_warn(ar, "No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n", |
| ar->hw_params.fw.dir, name); |
| ret = -ENOMEDIUM; |
| goto err; |
| } |
| |
| return 0; |
| |
| err: |
| ath10k_core_free_firmware_files(ar); |
| return ret; |
| } |
| |
| static int ath10k_core_fetch_firmware_files(struct ath10k *ar) |
| { |
| int ret; |
| |
| /* calibration file is optional, don't check for any errors */ |
| ath10k_fetch_cal_file(ar); |
| |
| ret = ath10k_core_fetch_board_file(ar); |
| if (ret) { |
| ath10k_err(ar, "failed to fetch board file: %d\n", ret); |
| return ret; |
| } |
| |
| ar->fw_api = 5; |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api); |
| |
| ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API5_FILE); |
| if (ret == 0) |
| goto success; |
| |
| ar->fw_api = 4; |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api); |
| |
| ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API4_FILE); |
| if (ret == 0) |
| goto success; |
| |
| ar->fw_api = 3; |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api); |
| |
| ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE); |
| if (ret == 0) |
| goto success; |
| |
| ar->fw_api = 2; |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api); |
| |
| ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE); |
| if (ret == 0) |
| goto success; |
| |
| ar->fw_api = 1; |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api); |
| |
| ret = ath10k_core_fetch_firmware_api_1(ar); |
| if (ret) |
| return ret; |
| |
| success: |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api); |
| |
| return 0; |
| } |
| |
| static int ath10k_download_cal_data(struct ath10k *ar) |
| { |
| int ret; |
| |
| ret = ath10k_download_cal_file(ar); |
| if (ret == 0) { |
| ar->cal_mode = ATH10K_CAL_MODE_FILE; |
| goto done; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "boot did not find a calibration file, try DT next: %d\n", |
| ret); |
| |
| ret = ath10k_download_cal_dt(ar); |
| if (ret == 0) { |
| ar->cal_mode = ATH10K_CAL_MODE_DT; |
| goto done; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, |
| "boot did not find DT entry, try OTP next: %d\n", |
| ret); |
| |
| ret = ath10k_download_and_run_otp(ar); |
| if (ret) { |
| ath10k_err(ar, "failed to run otp: %d\n", ret); |
| return ret; |
| } |
| |
| ar->cal_mode = ATH10K_CAL_MODE_OTP; |
| |
| done: |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot using calibration mode %s\n", |
| ath10k_cal_mode_str(ar->cal_mode)); |
| return 0; |
| } |
| |
| static int ath10k_init_uart(struct ath10k *ar) |
| { |
| int ret; |
| |
| /* |
| * Explicitly setting UART prints to zero as target turns it on |
| * based on scratch registers. |
| */ |
| ret = ath10k_bmi_write32(ar, hi_serial_enable, 0); |
| if (ret) { |
| ath10k_warn(ar, "could not disable UART prints (%d)\n", ret); |
| return ret; |
| } |
| |
| if (!uart_print) |
| return 0; |
| |
| ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, ar->hw_params.uart_pin); |
| if (ret) { |
| ath10k_warn(ar, "could not enable UART prints (%d)\n", ret); |
| return ret; |
| } |
| |
| ret = ath10k_bmi_write32(ar, hi_serial_enable, 1); |
| if (ret) { |
| ath10k_warn(ar, "could not enable UART prints (%d)\n", ret); |
| return ret; |
| } |
| |
| /* Set the UART baud rate to 19200. */ |
| ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200); |
| if (ret) { |
| ath10k_warn(ar, "could not set the baud rate (%d)\n", ret); |
| return ret; |
| } |
| |
| ath10k_info(ar, "UART prints enabled\n"); |
| return 0; |
| } |
| |
| static int ath10k_init_hw_params(struct ath10k *ar) |
| { |
| const struct ath10k_hw_params *uninitialized_var(hw_params); |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) { |
| hw_params = &ath10k_hw_params_list[i]; |
| |
| if (hw_params->id == ar->target_version) |
| break; |
| } |
| |
| if (i == ARRAY_SIZE(ath10k_hw_params_list)) { |
| ath10k_err(ar, "Unsupported hardware version: 0x%x\n", |
| ar->target_version); |
| return -EINVAL; |
| } |
| |
| ar->hw_params = *hw_params; |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "Hardware name %s version 0x%x\n", |
| ar->hw_params.name, ar->target_version); |
| |
| return 0; |
| } |
| |
| static void ath10k_core_restart(struct work_struct *work) |
| { |
| struct ath10k *ar = container_of(work, struct ath10k, restart_work); |
| |
| set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags); |
| |
| /* Place a barrier to make sure the compiler doesn't reorder |
| * CRASH_FLUSH and calling other functions. |
| */ |
| barrier(); |
| |
| ieee80211_stop_queues(ar->hw); |
| ath10k_drain_tx(ar); |
| complete_all(&ar->scan.started); |
| complete_all(&ar->scan.completed); |
| complete_all(&ar->scan.on_channel); |
| complete_all(&ar->offchan_tx_completed); |
| complete_all(&ar->install_key_done); |
| complete_all(&ar->vdev_setup_done); |
| complete_all(&ar->thermal.wmi_sync); |
| wake_up(&ar->htt.empty_tx_wq); |
| wake_up(&ar->wmi.tx_credits_wq); |
| wake_up(&ar->peer_mapping_wq); |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| switch (ar->state) { |
| case ATH10K_STATE_ON: |
| ar->state = ATH10K_STATE_RESTARTING; |
| ath10k_hif_stop(ar); |
| ath10k_scan_finish(ar); |
| ieee80211_restart_hw(ar->hw); |
| break; |
| case ATH10K_STATE_OFF: |
| /* this can happen if driver is being unloaded |
| * or if the crash happens during FW probing */ |
| ath10k_warn(ar, "cannot restart a device that hasn't been started\n"); |
| break; |
| case ATH10K_STATE_RESTARTING: |
| /* hw restart might be requested from multiple places */ |
| break; |
| case ATH10K_STATE_RESTARTED: |
| ar->state = ATH10K_STATE_WEDGED; |
| /* fall through */ |
| case ATH10K_STATE_WEDGED: |
| ath10k_warn(ar, "device is wedged, will not restart\n"); |
| break; |
| case ATH10K_STATE_UTF: |
| ath10k_warn(ar, "firmware restart in UTF mode not supported\n"); |
| break; |
| } |
| |
| mutex_unlock(&ar->conf_mutex); |
| } |
| |
| static int ath10k_core_init_firmware_features(struct ath10k *ar) |
| { |
| if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, ar->fw_features) && |
| !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) { |
| ath10k_err(ar, "feature bits corrupted: 10.2 feature requires 10.x feature to be set as well"); |
| return -EINVAL; |
| } |
| |
| if (ar->wmi.op_version >= ATH10K_FW_WMI_OP_VERSION_MAX) { |
| ath10k_err(ar, "unsupported WMI OP version (max %d): %d\n", |
| ATH10K_FW_WMI_OP_VERSION_MAX, ar->wmi.op_version); |
| return -EINVAL; |
| } |
| |
| /* Backwards compatibility for firmwares without |
| * ATH10K_FW_IE_WMI_OP_VERSION. |
| */ |
| if (ar->wmi.op_version == ATH10K_FW_WMI_OP_VERSION_UNSET) { |
| if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) { |
| if (test_bit(ATH10K_FW_FEATURE_WMI_10_2, |
| ar->fw_features)) |
| ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_2; |
| else |
| ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_10_1; |
| } else { |
| ar->wmi.op_version = ATH10K_FW_WMI_OP_VERSION_MAIN; |
| } |
| } |
| |
| switch (ar->wmi.op_version) { |
| case ATH10K_FW_WMI_OP_VERSION_MAIN: |
| ar->max_num_peers = TARGET_NUM_PEERS; |
| ar->max_num_stations = TARGET_NUM_STATIONS; |
| ar->max_num_vdevs = TARGET_NUM_VDEVS; |
| ar->htt.max_num_pending_tx = TARGET_NUM_MSDU_DESC; |
| ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV | |
| WMI_STAT_PEER; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_10_1: |
| case ATH10K_FW_WMI_OP_VERSION_10_2: |
| case ATH10K_FW_WMI_OP_VERSION_10_2_4: |
| ar->max_num_peers = TARGET_10X_NUM_PEERS; |
| ar->max_num_stations = TARGET_10X_NUM_STATIONS; |
| ar->max_num_vdevs = TARGET_10X_NUM_VDEVS; |
| ar->htt.max_num_pending_tx = TARGET_10X_NUM_MSDU_DESC; |
| ar->fw_stats_req_mask = WMI_STAT_PEER; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_TLV: |
| ar->max_num_peers = TARGET_TLV_NUM_PEERS; |
| ar->max_num_stations = TARGET_TLV_NUM_STATIONS; |
| ar->max_num_vdevs = TARGET_TLV_NUM_VDEVS; |
| ar->max_num_tdls_vdevs = TARGET_TLV_NUM_TDLS_VDEVS; |
| ar->htt.max_num_pending_tx = TARGET_TLV_NUM_MSDU_DESC; |
| ar->wow.max_num_patterns = TARGET_TLV_NUM_WOW_PATTERNS; |
| ar->fw_stats_req_mask = WMI_STAT_PDEV | WMI_STAT_VDEV | |
| WMI_STAT_PEER; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_UNSET: |
| case ATH10K_FW_WMI_OP_VERSION_MAX: |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| /* Backwards compatibility for firmwares without |
| * ATH10K_FW_IE_HTT_OP_VERSION. |
| */ |
| if (ar->htt.op_version == ATH10K_FW_HTT_OP_VERSION_UNSET) { |
| switch (ar->wmi.op_version) { |
| case ATH10K_FW_WMI_OP_VERSION_MAIN: |
| ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_MAIN; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_10_1: |
| case ATH10K_FW_WMI_OP_VERSION_10_2: |
| case ATH10K_FW_WMI_OP_VERSION_10_2_4: |
| ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_10_1; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_TLV: |
| ar->htt.op_version = ATH10K_FW_HTT_OP_VERSION_TLV; |
| break; |
| case ATH10K_FW_WMI_OP_VERSION_UNSET: |
| case ATH10K_FW_WMI_OP_VERSION_MAX: |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode) |
| { |
| int status; |
| |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| clear_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags); |
| |
| ath10k_bmi_start(ar); |
| |
| if (ath10k_init_configure_target(ar)) { |
| status = -EINVAL; |
| goto err; |
| } |
| |
| status = ath10k_download_cal_data(ar); |
| if (status) |
| goto err; |
| |
| /* Some of of qca988x solutions are having global reset issue |
| * during target initialization. Bypassing PLL setting before |
| * downloading firmware and letting the SoC run on REF_CLK is |
| * fixing the problem. Corresponding firmware change is also needed |
| * to set the clock source once the target is initialized. |
| */ |
| if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT, |
| ar->fw_features)) { |
| status = ath10k_bmi_write32(ar, hi_skip_clock_init, 1); |
| if (status) { |
| ath10k_err(ar, "could not write to skip_clock_init: %d\n", |
| status); |
| goto err; |
| } |
| } |
| |
| status = ath10k_download_fw(ar, mode); |
| if (status) |
| goto err; |
| |
| status = ath10k_init_uart(ar); |
| if (status) |
| goto err; |
| |
| ar->htc.htc_ops.target_send_suspend_complete = |
| ath10k_send_suspend_complete; |
| |
| status = ath10k_htc_init(ar); |
| if (status) { |
| ath10k_err(ar, "could not init HTC (%d)\n", status); |
| goto err; |
| } |
| |
| status = ath10k_bmi_done(ar); |
| if (status) |
| goto err; |
| |
| status = ath10k_wmi_attach(ar); |
| if (status) { |
| ath10k_err(ar, "WMI attach failed: %d\n", status); |
| goto err; |
| } |
| |
| status = ath10k_htt_init(ar); |
| if (status) { |
| ath10k_err(ar, "failed to init htt: %d\n", status); |
| goto err_wmi_detach; |
| } |
| |
| status = ath10k_htt_tx_alloc(&ar->htt); |
| if (status) { |
| ath10k_err(ar, "failed to alloc htt tx: %d\n", status); |
| goto err_wmi_detach; |
| } |
| |
| status = ath10k_htt_rx_alloc(&ar->htt); |
| if (status) { |
| ath10k_err(ar, "failed to alloc htt rx: %d\n", status); |
| goto err_htt_tx_detach; |
| } |
| |
| status = ath10k_hif_start(ar); |
| if (status) { |
| ath10k_err(ar, "could not start HIF: %d\n", status); |
| goto err_htt_rx_detach; |
| } |
| |
| status = ath10k_htc_wait_target(&ar->htc); |
| if (status) { |
| ath10k_err(ar, "failed to connect to HTC: %d\n", status); |
| goto err_hif_stop; |
| } |
| |
| if (mode == ATH10K_FIRMWARE_MODE_NORMAL) { |
| status = ath10k_htt_connect(&ar->htt); |
| if (status) { |
| ath10k_err(ar, "failed to connect htt (%d)\n", status); |
| goto err_hif_stop; |
| } |
| } |
| |
| status = ath10k_wmi_connect(ar); |
| if (status) { |
| ath10k_err(ar, "could not connect wmi: %d\n", status); |
| goto err_hif_stop; |
| } |
| |
| status = ath10k_htc_start(&ar->htc); |
| if (status) { |
| ath10k_err(ar, "failed to start htc: %d\n", status); |
| goto err_hif_stop; |
| } |
| |
| if (mode == ATH10K_FIRMWARE_MODE_NORMAL) { |
| status = ath10k_wmi_wait_for_service_ready(ar); |
| if (status) { |
| ath10k_warn(ar, "wmi service ready event not received"); |
| goto err_hif_stop; |
| } |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n", |
| ar->hw->wiphy->fw_version); |
| |
| status = ath10k_wmi_cmd_init(ar); |
| if (status) { |
| ath10k_err(ar, "could not send WMI init command (%d)\n", |
| status); |
| goto err_hif_stop; |
| } |
| |
| status = ath10k_wmi_wait_for_unified_ready(ar); |
| if (status) { |
| ath10k_err(ar, "wmi unified ready event not received\n"); |
| goto err_hif_stop; |
| } |
| |
| /* If firmware indicates Full Rx Reorder support it must be used in a |
| * slightly different manner. Let HTT code know. |
| */ |
| ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER, |
| ar->wmi.svc_map)); |
| |
| status = ath10k_htt_rx_ring_refill(ar); |
| if (status) { |
| ath10k_err(ar, "failed to refill htt rx ring: %d\n", status); |
| goto err_hif_stop; |
| } |
| |
| /* we don't care about HTT in UTF mode */ |
| if (mode == ATH10K_FIRMWARE_MODE_NORMAL) { |
| status = ath10k_htt_setup(&ar->htt); |
| if (status) { |
| ath10k_err(ar, "failed to setup htt: %d\n", status); |
| goto err_hif_stop; |
| } |
| } |
| |
| status = ath10k_debug_start(ar); |
| if (status) |
| goto err_hif_stop; |
| |
| ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1; |
| |
| INIT_LIST_HEAD(&ar->arvifs); |
| |
| return 0; |
| |
| err_hif_stop: |
| ath10k_hif_stop(ar); |
| err_htt_rx_detach: |
| ath10k_htt_rx_free(&ar->htt); |
| err_htt_tx_detach: |
| ath10k_htt_tx_free(&ar->htt); |
| err_wmi_detach: |
| ath10k_wmi_detach(ar); |
| err: |
| return status; |
| } |
| EXPORT_SYMBOL(ath10k_core_start); |
| |
| int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt) |
| { |
| int ret; |
| unsigned long time_left; |
| |
| reinit_completion(&ar->target_suspend); |
| |
| ret = ath10k_wmi_pdev_suspend_target(ar, suspend_opt); |
| if (ret) { |
| ath10k_warn(ar, "could not suspend target (%d)\n", ret); |
| return ret; |
| } |
| |
| time_left = wait_for_completion_timeout(&ar->target_suspend, 1 * HZ); |
| |
| if (!time_left) { |
| ath10k_warn(ar, "suspend timed out - target pause event never came\n"); |
| return -ETIMEDOUT; |
| } |
| |
| return 0; |
| } |
| |
| void ath10k_core_stop(struct ath10k *ar) |
| { |
| lockdep_assert_held(&ar->conf_mutex); |
| |
| /* try to suspend target */ |
| if (ar->state != ATH10K_STATE_RESTARTING && |
| ar->state != ATH10K_STATE_UTF) |
| ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND_AND_DISABLE_INTR); |
| |
| ath10k_debug_stop(ar); |
| ath10k_hif_stop(ar); |
| ath10k_htt_tx_free(&ar->htt); |
| ath10k_htt_rx_free(&ar->htt); |
| ath10k_wmi_detach(ar); |
| } |
| EXPORT_SYMBOL(ath10k_core_stop); |
| |
| /* mac80211 manages fw/hw initialization through start/stop hooks. However in |
| * order to know what hw capabilities should be advertised to mac80211 it is |
| * necessary to load the firmware (and tear it down immediately since start |
| * hook will try to init it again) before registering */ |
| static int ath10k_core_probe_fw(struct ath10k *ar) |
| { |
| struct bmi_target_info target_info; |
| int ret = 0; |
| |
| ret = ath10k_hif_power_up(ar); |
| if (ret) { |
| ath10k_err(ar, "could not start pci hif (%d)\n", ret); |
| return ret; |
| } |
| |
| memset(&target_info, 0, sizeof(target_info)); |
| ret = ath10k_bmi_get_target_info(ar, &target_info); |
| if (ret) { |
| ath10k_err(ar, "could not get target info (%d)\n", ret); |
| goto err_power_down; |
| } |
| |
| ar->target_version = target_info.version; |
| ar->hw->wiphy->hw_version = target_info.version; |
| |
| ret = ath10k_init_hw_params(ar); |
| if (ret) { |
| ath10k_err(ar, "could not get hw params (%d)\n", ret); |
| goto err_power_down; |
| } |
| |
| ret = ath10k_core_fetch_firmware_files(ar); |
| if (ret) { |
| ath10k_err(ar, "could not fetch firmware files (%d)\n", ret); |
| goto err_power_down; |
| } |
| |
| ret = ath10k_core_init_firmware_features(ar); |
| if (ret) { |
| ath10k_err(ar, "fatal problem with firmware features: %d\n", |
| ret); |
| goto err_free_firmware_files; |
| } |
| |
| mutex_lock(&ar->conf_mutex); |
| |
| ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL); |
| if (ret) { |
| ath10k_err(ar, "could not init core (%d)\n", ret); |
| goto err_unlock; |
| } |
| |
| ath10k_print_driver_info(ar); |
| ath10k_core_stop(ar); |
| |
| mutex_unlock(&ar->conf_mutex); |
| |
| ath10k_hif_power_down(ar); |
| return 0; |
| |
| err_unlock: |
| mutex_unlock(&ar->conf_mutex); |
| |
| err_free_firmware_files: |
| ath10k_core_free_firmware_files(ar); |
| |
| err_power_down: |
| ath10k_hif_power_down(ar); |
| |
| return ret; |
| } |
| |
| static void ath10k_core_register_work(struct work_struct *work) |
| { |
| struct ath10k *ar = container_of(work, struct ath10k, register_work); |
| int status; |
| |
| status = ath10k_core_probe_fw(ar); |
| if (status) { |
| ath10k_err(ar, "could not probe fw (%d)\n", status); |
| goto err; |
| } |
| |
| status = ath10k_mac_register(ar); |
| if (status) { |
| ath10k_err(ar, "could not register to mac80211 (%d)\n", status); |
| goto err_release_fw; |
| } |
| |
| status = ath10k_debug_register(ar); |
| if (status) { |
| ath10k_err(ar, "unable to initialize debugfs\n"); |
| goto err_unregister_mac; |
| } |
| |
| status = ath10k_spectral_create(ar); |
| if (status) { |
| ath10k_err(ar, "failed to initialize spectral\n"); |
| goto err_debug_destroy; |
| } |
| |
| status = ath10k_thermal_register(ar); |
| if (status) { |
| ath10k_err(ar, "could not register thermal device: %d\n", |
| status); |
| goto err_spectral_destroy; |
| } |
| |
| set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags); |
| return; |
| |
| err_spectral_destroy: |
| ath10k_spectral_destroy(ar); |
| err_debug_destroy: |
| ath10k_debug_destroy(ar); |
| err_unregister_mac: |
| ath10k_mac_unregister(ar); |
| err_release_fw: |
| ath10k_core_free_firmware_files(ar); |
| err: |
| /* TODO: It's probably a good idea to release device from the driver |
| * but calling device_release_driver() here will cause a deadlock. |
| */ |
| return; |
| } |
| |
| int ath10k_core_register(struct ath10k *ar, u32 chip_id) |
| { |
| ar->chip_id = chip_id; |
| queue_work(ar->workqueue, &ar->register_work); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ath10k_core_register); |
| |
| void ath10k_core_unregister(struct ath10k *ar) |
| { |
| cancel_work_sync(&ar->register_work); |
| |
| if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags)) |
| return; |
| |
| ath10k_thermal_unregister(ar); |
| /* Stop spectral before unregistering from mac80211 to remove the |
| * relayfs debugfs file cleanly. Otherwise the parent debugfs tree |
| * would be already be free'd recursively, leading to a double free. |
| */ |
| ath10k_spectral_destroy(ar); |
| |
| /* We must unregister from mac80211 before we stop HTC and HIF. |
| * Otherwise we will fail to submit commands to FW and mac80211 will be |
| * unhappy about callback failures. */ |
| ath10k_mac_unregister(ar); |
| |
| ath10k_testmode_destroy(ar); |
| |
| ath10k_core_free_firmware_files(ar); |
| |
| ath10k_debug_unregister(ar); |
| } |
| EXPORT_SYMBOL(ath10k_core_unregister); |
| |
| struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev, |
| enum ath10k_bus bus, |
| enum ath10k_hw_rev hw_rev, |
| const struct ath10k_hif_ops *hif_ops) |
| { |
| struct ath10k *ar; |
| int ret; |
| |
| ar = ath10k_mac_create(priv_size); |
| if (!ar) |
| return NULL; |
| |
| ar->ath_common.priv = ar; |
| ar->ath_common.hw = ar->hw; |
| ar->dev = dev; |
| ar->hw_rev = hw_rev; |
| ar->hif.ops = hif_ops; |
| ar->hif.bus = bus; |
| |
| switch (hw_rev) { |
| case ATH10K_HW_QCA988X: |
| ar->regs = &qca988x_regs; |
| break; |
| case ATH10K_HW_QCA6174: |
| ar->regs = &qca6174_regs; |
| break; |
| default: |
| ath10k_err(ar, "unsupported core hardware revision %d\n", |
| hw_rev); |
| ret = -ENOTSUPP; |
| goto err_free_mac; |
| } |
| |
| init_completion(&ar->scan.started); |
| init_completion(&ar->scan.completed); |
| init_completion(&ar->scan.on_channel); |
| init_completion(&ar->target_suspend); |
| init_completion(&ar->wow.wakeup_completed); |
| |
| init_completion(&ar->install_key_done); |
| init_completion(&ar->vdev_setup_done); |
| init_completion(&ar->thermal.wmi_sync); |
| |
| INIT_DELAYED_WORK(&ar->scan.timeout, ath10k_scan_timeout_work); |
| |
| ar->workqueue = create_singlethread_workqueue("ath10k_wq"); |
| if (!ar->workqueue) |
| goto err_free_mac; |
| |
| mutex_init(&ar->conf_mutex); |
| spin_lock_init(&ar->data_lock); |
| |
| INIT_LIST_HEAD(&ar->peers); |
| init_waitqueue_head(&ar->peer_mapping_wq); |
| init_waitqueue_head(&ar->htt.empty_tx_wq); |
| init_waitqueue_head(&ar->wmi.tx_credits_wq); |
| |
| init_completion(&ar->offchan_tx_completed); |
| INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work); |
| skb_queue_head_init(&ar->offchan_tx_queue); |
| |
| INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work); |
| skb_queue_head_init(&ar->wmi_mgmt_tx_queue); |
| |
| INIT_WORK(&ar->register_work, ath10k_core_register_work); |
| INIT_WORK(&ar->restart_work, ath10k_core_restart); |
| |
| ret = ath10k_debug_create(ar); |
| if (ret) |
| goto err_free_wq; |
| |
| return ar; |
| |
| err_free_wq: |
| destroy_workqueue(ar->workqueue); |
| |
| err_free_mac: |
| ath10k_mac_destroy(ar); |
| |
| return NULL; |
| } |
| EXPORT_SYMBOL(ath10k_core_create); |
| |
| void ath10k_core_destroy(struct ath10k *ar) |
| { |
| flush_workqueue(ar->workqueue); |
| destroy_workqueue(ar->workqueue); |
| |
| ath10k_debug_destroy(ar); |
| ath10k_mac_destroy(ar); |
| } |
| EXPORT_SYMBOL(ath10k_core_destroy); |
| |
| MODULE_AUTHOR("Qualcomm Atheros"); |
| MODULE_DESCRIPTION("Core module for QCA988X PCIe devices."); |
| MODULE_LICENSE("Dual BSD/GPL"); |