Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Janusz Dziedzic | 4014 | 70.93% | 1 | 2.56% |
Wen Gong | 682 | 12.05% | 6 | 15.38% |
Baochen Qiang | 386 | 6.82% | 9 | 23.08% |
Karthikeyan Periyasamy | 234 | 4.14% | 11 | 28.21% |
Lingbo Kong | 193 | 3.41% | 2 | 5.13% |
Aaradhana Sahu | 86 | 1.52% | 2 | 5.13% |
Raj Kumar Bhagat | 22 | 0.39% | 3 | 7.69% |
Ramasamy Kaliappan | 18 | 0.32% | 1 | 2.56% |
Kang Yang | 10 | 0.18% | 1 | 2.56% |
Karthik M | 8 | 0.14% | 1 | 2.56% |
Jeff Johnson | 3 | 0.05% | 1 | 2.56% |
Hari Chandrakanthan | 3 | 0.05% | 1 | 2.56% |
Total | 5659 | 39 |
// SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #include <linux/module.h> #include <linux/slab.h> #include <linux/remoteproc.h> #include <linux/firmware.h> #include <linux/of.h> #include "core.h" #include "dp_tx.h" #include "dp_rx.h" #include "debug.h" #include "hif.h" #include "fw.h" #include "debugfs.h" #include "wow.h" unsigned int ath12k_debug_mask; module_param_named(debug_mask, ath12k_debug_mask, uint, 0644); MODULE_PARM_DESC(debug_mask, "Debugging mask"); static int ath12k_core_rfkill_config(struct ath12k_base *ab) { struct ath12k *ar; int ret = 0, i; if (!(ab->target_caps.sys_cap_info & WMI_SYS_CAP_INFO_RFKILL)) return 0; for (i = 0; i < ab->num_radios; i++) { ar = ab->pdevs[i].ar; ret = ath12k_mac_rfkill_config(ar); if (ret && ret != -EOPNOTSUPP) { ath12k_warn(ab, "failed to configure rfkill: %d", ret); return ret; } } return ret; } /* Check if we need to continue with suspend/resume operation. * Return: * a negative value: error happens and don't continue. * 0: no error but don't continue. * positive value: no error and do continue. */ static int ath12k_core_continue_suspend_resume(struct ath12k_base *ab) { struct ath12k *ar; if (!ab->hw_params->supports_suspend) return -EOPNOTSUPP; /* so far single_pdev_only chips have supports_suspend as true * so pass 0 as a dummy pdev_id here. */ ar = ab->pdevs[0].ar; if (!ar || !ar->ah || ar->ah->state != ATH12K_HW_STATE_OFF) return 0; return 1; } int ath12k_core_suspend(struct ath12k_base *ab) { struct ath12k *ar; int ret, i; ret = ath12k_core_continue_suspend_resume(ab); if (ret <= 0) return ret; for (i = 0; i < ab->num_radios; i++) { ar = ab->pdevs[i].ar; if (!ar) continue; ret = ath12k_mac_wait_tx_complete(ar); if (ret) { ath12k_warn(ab, "failed to wait tx complete: %d\n", ret); return ret; } } /* PM framework skips suspend_late/resume_early callbacks * if other devices report errors in their suspend callbacks. * However ath12k_core_resume() would still be called because * here we return success thus kernel put us on dpm_suspended_list. * Since we won't go through a power down/up cycle, there is * no chance to call complete(&ab->restart_completed) in * ath12k_core_restart(), making ath12k_core_resume() timeout. * So call it here to avoid this issue. This also works in case * no error happens thus suspend_late/resume_early get called, * because it will be reinitialized in ath12k_core_resume_early(). */ complete(&ab->restart_completed); return 0; } EXPORT_SYMBOL(ath12k_core_suspend); int ath12k_core_suspend_late(struct ath12k_base *ab) { int ret; ret = ath12k_core_continue_suspend_resume(ab); if (ret <= 0) return ret; ath12k_acpi_stop(ab); ath12k_hif_irq_disable(ab); ath12k_hif_ce_irq_disable(ab); ath12k_hif_power_down(ab, true); return 0; } EXPORT_SYMBOL(ath12k_core_suspend_late); int ath12k_core_resume_early(struct ath12k_base *ab) { int ret; ret = ath12k_core_continue_suspend_resume(ab); if (ret <= 0) return ret; reinit_completion(&ab->restart_completed); ret = ath12k_hif_power_up(ab); if (ret) ath12k_warn(ab, "failed to power up hif during resume: %d\n", ret); return ret; } EXPORT_SYMBOL(ath12k_core_resume_early); int ath12k_core_resume(struct ath12k_base *ab) { long time_left; int ret; ret = ath12k_core_continue_suspend_resume(ab); if (ret <= 0) return ret; time_left = wait_for_completion_timeout(&ab->restart_completed, ATH12K_RESET_TIMEOUT_HZ); if (time_left == 0) { ath12k_warn(ab, "timeout while waiting for restart complete"); return -ETIMEDOUT; } return 0; } EXPORT_SYMBOL(ath12k_core_resume); static int __ath12k_core_create_board_name(struct ath12k_base *ab, char *name, size_t name_len, bool with_variant, bool bus_type_mode) { /* strlen(',variant=') + strlen(ab->qmi.target.bdf_ext) */ char variant[9 + ATH12K_QMI_BDF_EXT_STR_LENGTH] = { 0 }; if (with_variant && ab->qmi.target.bdf_ext[0] != '\0') scnprintf(variant, sizeof(variant), ",variant=%s", ab->qmi.target.bdf_ext); switch (ab->id.bdf_search) { case ATH12K_BDF_SEARCH_BUS_AND_BOARD: if (bus_type_mode) scnprintf(name, name_len, "bus=%s", ath12k_bus_str(ab->hif.bus)); else scnprintf(name, name_len, "bus=%s,vendor=%04x,device=%04x,subsystem-vendor=%04x,subsystem-device=%04x,qmi-chip-id=%d,qmi-board-id=%d%s", ath12k_bus_str(ab->hif.bus), ab->id.vendor, ab->id.device, ab->id.subsystem_vendor, ab->id.subsystem_device, ab->qmi.target.chip_id, ab->qmi.target.board_id, variant); break; default: scnprintf(name, name_len, "bus=%s,qmi-chip-id=%d,qmi-board-id=%d%s", ath12k_bus_str(ab->hif.bus), ab->qmi.target.chip_id, ab->qmi.target.board_id, variant); break; } ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot using board name '%s'\n", name); return 0; } static int ath12k_core_create_board_name(struct ath12k_base *ab, char *name, size_t name_len) { return __ath12k_core_create_board_name(ab, name, name_len, true, false); } static int ath12k_core_create_fallback_board_name(struct ath12k_base *ab, char *name, size_t name_len) { return __ath12k_core_create_board_name(ab, name, name_len, false, false); } static int ath12k_core_create_bus_type_board_name(struct ath12k_base *ab, char *name, size_t name_len) { return __ath12k_core_create_board_name(ab, name, name_len, false, true); } const struct firmware *ath12k_core_firmware_request(struct ath12k_base *ab, const char *file) { const struct firmware *fw; char path[100]; int ret; if (!file) return ERR_PTR(-ENOENT); ath12k_core_create_firmware_path(ab, file, path, sizeof(path)); ret = firmware_request_nowarn(&fw, path, ab->dev); if (ret) return ERR_PTR(ret); ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot firmware request %s size %zu\n", path, fw->size); return fw; } void ath12k_core_free_bdf(struct ath12k_base *ab, struct ath12k_board_data *bd) { if (!IS_ERR(bd->fw)) release_firmware(bd->fw); memset(bd, 0, sizeof(*bd)); } static int ath12k_core_parse_bd_ie_board(struct ath12k_base *ab, struct ath12k_board_data *bd, const void *buf, size_t buf_len, const char *boardname, int ie_id, int name_id, int data_id) { const struct ath12k_fw_ie *hdr; bool name_match_found; int ret, board_ie_id; size_t board_ie_len; const void *board_ie_data; name_match_found = false; /* go through ATH12K_BD_IE_BOARD_/ATH12K_BD_IE_REGDB_ elements */ while (buf_len > sizeof(struct ath12k_fw_ie)) { hdr = buf; board_ie_id = le32_to_cpu(hdr->id); board_ie_len = le32_to_cpu(hdr->len); board_ie_data = hdr->data; buf_len -= sizeof(*hdr); buf += sizeof(*hdr); if (buf_len < ALIGN(board_ie_len, 4)) { ath12k_err(ab, "invalid %s length: %zu < %zu\n", ath12k_bd_ie_type_str(ie_id), buf_len, ALIGN(board_ie_len, 4)); ret = -EINVAL; goto out; } if (board_ie_id == name_id) { ath12k_dbg_dump(ab, ATH12K_DBG_BOOT, "board name", "", board_ie_data, board_ie_len); if (board_ie_len != strlen(boardname)) goto next; ret = memcmp(board_ie_data, boardname, strlen(boardname)); if (ret) goto next; name_match_found = true; ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot found match %s for name '%s'", ath12k_bd_ie_type_str(ie_id), boardname); } else if (board_ie_id == data_id) { if (!name_match_found) /* no match found */ goto next; ath12k_dbg(ab, ATH12K_DBG_BOOT, "boot found %s for '%s'", ath12k_bd_ie_type_str(ie_id), boardname); bd->data = board_ie_data; bd->len = board_ie_len; ret = 0; goto out; } else { ath12k_warn(ab, "unknown %s id found: %d\n", ath12k_bd_ie_type_str(ie_id), board_ie_id); } next: /* jump over the padding */ board_ie_len = ALIGN(board_ie_len, 4); buf_len -= board_ie_len; buf += board_ie_len; } /* no match found */ ret = -ENOENT; out: return ret; } static int ath12k_core_fetch_board_data_api_n(struct ath12k_base *ab, struct ath12k_board_data *bd, const char *boardname, int ie_id_match, int name_id, int data_id) { size_t len, magic_len; const u8 *data; char *filename, filepath[100]; size_t ie_len; struct ath12k_fw_ie *hdr; int ret, ie_id; filename = ATH12K_BOARD_API2_FILE; if (!bd->fw) bd->fw = ath12k_core_firmware_request(ab, filename); if (IS_ERR(bd->fw)) return PTR_ERR(bd->fw); data = bd->fw->data; len = bd->fw->size; ath12k_core_create_firmware_path(ab, filename, filepath, sizeof(filepath)); /* magic has extra null byte padded */ magic_len = strlen(ATH12K_BOARD_MAGIC) + 1; if (len < magic_len) { ath12k_err(ab, "failed to find magic value in %s, file too short: %zu\n", filepath, len); ret = -EINVAL; goto err; } if (memcmp(data, ATH12K_BOARD_MAGIC, magic_len)) { ath12k_err(ab, "found invalid board magic\n"); ret = -EINVAL; goto err; } /* magic is padded to 4 bytes */ magic_len = ALIGN(magic_len, 4); if (len < magic_len) { ath12k_err(ab, "failed: %s too small to contain board data, len: %zu\n", filepath, len); ret = -EINVAL; goto err; } data += magic_len; len -= magic_len; while (len > sizeof(struct ath12k_fw_ie)) { hdr = (struct ath12k_fw_ie *)data; ie_id = le32_to_cpu(hdr->id); ie_len = le32_to_cpu(hdr->len); len -= sizeof(*hdr); data = hdr->data; if (len < ALIGN(ie_len, 4)) { ath12k_err(ab, "invalid length for board ie_id %d ie_len %zu len %zu\n", ie_id, ie_len, len); ret = -EINVAL; goto err; } if (ie_id == ie_id_match) { ret = ath12k_core_parse_bd_ie_board(ab, bd, data, ie_len, boardname, ie_id_match, name_id, data_id); if (ret == -ENOENT) /* no match found, continue */ goto next; else if (ret) /* there was an error, bail out */ goto err; /* either found or error, so stop searching */ goto out; } next: /* jump over the padding */ ie_len = ALIGN(ie_len, 4); len -= ie_len; data += ie_len; } out: if (!bd->data || !bd->len) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "failed to fetch %s for %s from %s\n", ath12k_bd_ie_type_str(ie_id_match), boardname, filepath); ret = -ENODATA; goto err; } return 0; err: ath12k_core_free_bdf(ab, bd); return ret; } int ath12k_core_fetch_board_data_api_1(struct ath12k_base *ab, struct ath12k_board_data *bd, char *filename) { bd->fw = ath12k_core_firmware_request(ab, filename); if (IS_ERR(bd->fw)) return PTR_ERR(bd->fw); bd->data = bd->fw->data; bd->len = bd->fw->size; return 0; } #define BOARD_NAME_SIZE 200 int ath12k_core_fetch_bdf(struct ath12k_base *ab, struct ath12k_board_data *bd) { char boardname[BOARD_NAME_SIZE], fallback_boardname[BOARD_NAME_SIZE]; char *filename, filepath[100]; int bd_api; int ret; filename = ATH12K_BOARD_API2_FILE; ret = ath12k_core_create_board_name(ab, boardname, sizeof(boardname)); if (ret) { ath12k_err(ab, "failed to create board name: %d", ret); return ret; } bd_api = 2; ret = ath12k_core_fetch_board_data_api_n(ab, bd, boardname, ATH12K_BD_IE_BOARD, ATH12K_BD_IE_BOARD_NAME, ATH12K_BD_IE_BOARD_DATA); if (!ret) goto success; ret = ath12k_core_create_fallback_board_name(ab, fallback_boardname, sizeof(fallback_boardname)); if (ret) { ath12k_err(ab, "failed to create fallback board name: %d", ret); return ret; } ret = ath12k_core_fetch_board_data_api_n(ab, bd, fallback_boardname, ATH12K_BD_IE_BOARD, ATH12K_BD_IE_BOARD_NAME, ATH12K_BD_IE_BOARD_DATA); if (!ret) goto success; bd_api = 1; ret = ath12k_core_fetch_board_data_api_1(ab, bd, ATH12K_DEFAULT_BOARD_FILE); if (ret) { ath12k_core_create_firmware_path(ab, filename, filepath, sizeof(filepath)); ath12k_err(ab, "failed to fetch board data for %s from %s\n", boardname, filepath); if (memcmp(boardname, fallback_boardname, strlen(boardname))) ath12k_err(ab, "failed to fetch board data for %s from %s\n", fallback_boardname, filepath); ath12k_err(ab, "failed to fetch board.bin from %s\n", ab->hw_params->fw.dir); return ret; } success: ath12k_dbg(ab, ATH12K_DBG_BOOT, "using board api %d\n", bd_api); return 0; } int ath12k_core_fetch_regdb(struct ath12k_base *ab, struct ath12k_board_data *bd) { char boardname[BOARD_NAME_SIZE], default_boardname[BOARD_NAME_SIZE]; int ret; ret = ath12k_core_create_board_name(ab, boardname, BOARD_NAME_SIZE); if (ret) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "failed to create board name for regdb: %d", ret); goto exit; } ret = ath12k_core_fetch_board_data_api_n(ab, bd, boardname, ATH12K_BD_IE_REGDB, ATH12K_BD_IE_REGDB_NAME, ATH12K_BD_IE_REGDB_DATA); if (!ret) goto exit; ret = ath12k_core_create_bus_type_board_name(ab, default_boardname, BOARD_NAME_SIZE); if (ret) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "failed to create default board name for regdb: %d", ret); goto exit; } ret = ath12k_core_fetch_board_data_api_n(ab, bd, default_boardname, ATH12K_BD_IE_REGDB, ATH12K_BD_IE_REGDB_NAME, ATH12K_BD_IE_REGDB_DATA); if (!ret) goto exit; ret = ath12k_core_fetch_board_data_api_1(ab, bd, ATH12K_REGDB_FILE_NAME); if (ret) ath12k_dbg(ab, ATH12K_DBG_BOOT, "failed to fetch %s from %s\n", ATH12K_REGDB_FILE_NAME, ab->hw_params->fw.dir); exit: if (!ret) ath12k_dbg(ab, ATH12K_DBG_BOOT, "fetched regdb\n"); return ret; } u32 ath12k_core_get_max_station_per_radio(struct ath12k_base *ab) { if (ab->num_radios == 2) return TARGET_NUM_STATIONS_DBS; else if (ab->num_radios == 3) return TARGET_NUM_PEERS_PDEV_DBS_SBS; return TARGET_NUM_STATIONS_SINGLE; } u32 ath12k_core_get_max_peers_per_radio(struct ath12k_base *ab) { if (ab->num_radios == 2) return TARGET_NUM_PEERS_PDEV_DBS; else if (ab->num_radios == 3) return TARGET_NUM_PEERS_PDEV_DBS_SBS; return TARGET_NUM_PEERS_PDEV_SINGLE; } u32 ath12k_core_get_max_num_tids(struct ath12k_base *ab) { if (ab->num_radios == 2) return TARGET_NUM_TIDS(DBS); else if (ab->num_radios == 3) return TARGET_NUM_TIDS(DBS_SBS); return TARGET_NUM_TIDS(SINGLE); } static void ath12k_core_stop(struct ath12k_base *ab) { if (!test_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags)) ath12k_qmi_firmware_stop(ab); ath12k_acpi_stop(ab); ath12k_hif_stop(ab); ath12k_wmi_detach(ab); ath12k_dp_rx_pdev_reo_cleanup(ab); /* De-Init of components as needed */ } static void ath12k_core_check_bdfext(const struct dmi_header *hdr, void *data) { struct ath12k_base *ab = data; const char *magic = ATH12K_SMBIOS_BDF_EXT_MAGIC; struct ath12k_smbios_bdf *smbios = (struct ath12k_smbios_bdf *)hdr; ssize_t copied; size_t len; int i; if (ab->qmi.target.bdf_ext[0] != '\0') return; if (hdr->type != ATH12K_SMBIOS_BDF_EXT_TYPE) return; if (hdr->length != ATH12K_SMBIOS_BDF_EXT_LENGTH) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "wrong smbios bdf ext type length (%d).\n", hdr->length); return; } if (!smbios->bdf_enabled) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "bdf variant name not found.\n"); return; } /* Only one string exists (per spec) */ if (memcmp(smbios->bdf_ext, magic, strlen(magic)) != 0) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "bdf variant magic does not match.\n"); return; } len = min_t(size_t, strlen(smbios->bdf_ext), sizeof(ab->qmi.target.bdf_ext)); for (i = 0; i < len; i++) { if (!isascii(smbios->bdf_ext[i]) || !isprint(smbios->bdf_ext[i])) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "bdf variant name contains non ascii chars.\n"); return; } } /* Copy extension name without magic prefix */ copied = strscpy(ab->qmi.target.bdf_ext, smbios->bdf_ext + strlen(magic), sizeof(ab->qmi.target.bdf_ext)); if (copied < 0) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "bdf variant string is longer than the buffer can accommodate\n"); return; } ath12k_dbg(ab, ATH12K_DBG_BOOT, "found and validated bdf variant smbios_type 0x%x bdf %s\n", ATH12K_SMBIOS_BDF_EXT_TYPE, ab->qmi.target.bdf_ext); } int ath12k_core_check_smbios(struct ath12k_base *ab) { ab->qmi.target.bdf_ext[0] = '\0'; dmi_walk(ath12k_core_check_bdfext, ab); if (ab->qmi.target.bdf_ext[0] == '\0') return -ENODATA; return 0; } static int ath12k_core_soc_create(struct ath12k_base *ab) { int ret; ret = ath12k_qmi_init_service(ab); if (ret) { ath12k_err(ab, "failed to initialize qmi :%d\n", ret); return ret; } ath12k_debugfs_soc_create(ab); ret = ath12k_hif_power_up(ab); if (ret) { ath12k_err(ab, "failed to power up :%d\n", ret); goto err_qmi_deinit; } return 0; err_qmi_deinit: ath12k_debugfs_soc_destroy(ab); ath12k_qmi_deinit_service(ab); return ret; } static void ath12k_core_soc_destroy(struct ath12k_base *ab) { ath12k_dp_free(ab); ath12k_reg_free(ab); ath12k_debugfs_soc_destroy(ab); ath12k_qmi_deinit_service(ab); } static int ath12k_core_pdev_create(struct ath12k_base *ab) { int ret; ret = ath12k_mac_register(ab); if (ret) { ath12k_err(ab, "failed register the radio with mac80211: %d\n", ret); return ret; } ret = ath12k_dp_pdev_alloc(ab); if (ret) { ath12k_err(ab, "failed to attach DP pdev: %d\n", ret); goto err_mac_unregister; } return 0; err_mac_unregister: ath12k_mac_unregister(ab); return ret; } static void ath12k_core_pdev_destroy(struct ath12k_base *ab) { ath12k_mac_unregister(ab); ath12k_hif_irq_disable(ab); ath12k_dp_pdev_free(ab); } static int ath12k_core_start(struct ath12k_base *ab, enum ath12k_firmware_mode mode) { int ret; ret = ath12k_wmi_attach(ab); if (ret) { ath12k_err(ab, "failed to attach wmi: %d\n", ret); return ret; } ret = ath12k_htc_init(ab); if (ret) { ath12k_err(ab, "failed to init htc: %d\n", ret); goto err_wmi_detach; } ret = ath12k_hif_start(ab); if (ret) { ath12k_err(ab, "failed to start HIF: %d\n", ret); goto err_wmi_detach; } ret = ath12k_htc_wait_target(&ab->htc); if (ret) { ath12k_err(ab, "failed to connect to HTC: %d\n", ret); goto err_hif_stop; } ret = ath12k_dp_htt_connect(&ab->dp); if (ret) { ath12k_err(ab, "failed to connect to HTT: %d\n", ret); goto err_hif_stop; } ret = ath12k_wmi_connect(ab); if (ret) { ath12k_err(ab, "failed to connect wmi: %d\n", ret); goto err_hif_stop; } ret = ath12k_htc_start(&ab->htc); if (ret) { ath12k_err(ab, "failed to start HTC: %d\n", ret); goto err_hif_stop; } ret = ath12k_wmi_wait_for_service_ready(ab); if (ret) { ath12k_err(ab, "failed to receive wmi service ready event: %d\n", ret); goto err_hif_stop; } ret = ath12k_mac_allocate(ab); if (ret) { ath12k_err(ab, "failed to create new hw device with mac80211 :%d\n", ret); goto err_hif_stop; } ath12k_dp_cc_config(ab); ret = ath12k_dp_rx_pdev_reo_setup(ab); if (ret) { ath12k_err(ab, "failed to initialize reo destination rings: %d\n", ret); goto err_mac_destroy; } ath12k_dp_hal_rx_desc_init(ab); ret = ath12k_wmi_cmd_init(ab); if (ret) { ath12k_err(ab, "failed to send wmi init cmd: %d\n", ret); goto err_reo_cleanup; } ret = ath12k_wmi_wait_for_unified_ready(ab); if (ret) { ath12k_err(ab, "failed to receive wmi unified ready event: %d\n", ret); goto err_reo_cleanup; } /* put hardware to DBS mode */ if (ab->hw_params->single_pdev_only) { ret = ath12k_wmi_set_hw_mode(ab, WMI_HOST_HW_MODE_DBS); if (ret) { ath12k_err(ab, "failed to send dbs mode: %d\n", ret); goto err_reo_cleanup; } } ret = ath12k_dp_tx_htt_h2t_ver_req_msg(ab); if (ret) { ath12k_err(ab, "failed to send htt version request message: %d\n", ret); goto err_reo_cleanup; } ret = ath12k_acpi_start(ab); if (ret) /* ACPI is optional so continue in case of an error */ ath12k_dbg(ab, ATH12K_DBG_BOOT, "acpi failed: %d\n", ret); return 0; err_reo_cleanup: ath12k_dp_rx_pdev_reo_cleanup(ab); err_mac_destroy: ath12k_mac_destroy(ab); err_hif_stop: ath12k_hif_stop(ab); err_wmi_detach: ath12k_wmi_detach(ab); return ret; } static int ath12k_core_start_firmware(struct ath12k_base *ab, enum ath12k_firmware_mode mode) { int ret; ath12k_ce_get_shadow_config(ab, &ab->qmi.ce_cfg.shadow_reg_v3, &ab->qmi.ce_cfg.shadow_reg_v3_len); ret = ath12k_qmi_firmware_start(ab, mode); if (ret) { ath12k_err(ab, "failed to send firmware start: %d\n", ret); return ret; } return ret; } int ath12k_core_qmi_firmware_ready(struct ath12k_base *ab) { int ret; ret = ath12k_core_start_firmware(ab, ATH12K_FIRMWARE_MODE_NORMAL); if (ret) { ath12k_err(ab, "failed to start firmware: %d\n", ret); return ret; } ret = ath12k_ce_init_pipes(ab); if (ret) { ath12k_err(ab, "failed to initialize CE: %d\n", ret); goto err_firmware_stop; } ret = ath12k_dp_alloc(ab); if (ret) { ath12k_err(ab, "failed to init DP: %d\n", ret); goto err_firmware_stop; } mutex_lock(&ab->core_lock); ret = ath12k_core_start(ab, ATH12K_FIRMWARE_MODE_NORMAL); if (ret) { ath12k_err(ab, "failed to start core: %d\n", ret); goto err_dp_free; } ret = ath12k_core_pdev_create(ab); if (ret) { ath12k_err(ab, "failed to create pdev core: %d\n", ret); goto err_core_stop; } ath12k_hif_irq_enable(ab); ret = ath12k_core_rfkill_config(ab); if (ret && ret != -EOPNOTSUPP) { ath12k_err(ab, "failed to config rfkill: %d\n", ret); goto err_core_pdev_destroy; } mutex_unlock(&ab->core_lock); return 0; err_core_pdev_destroy: ath12k_core_pdev_destroy(ab); err_core_stop: ath12k_core_stop(ab); ath12k_mac_destroy(ab); err_dp_free: ath12k_dp_free(ab); mutex_unlock(&ab->core_lock); err_firmware_stop: ath12k_qmi_firmware_stop(ab); return ret; } static int ath12k_core_reconfigure_on_crash(struct ath12k_base *ab) { int ret; mutex_lock(&ab->core_lock); ath12k_dp_pdev_free(ab); ath12k_ce_cleanup_pipes(ab); ath12k_wmi_detach(ab); ath12k_dp_rx_pdev_reo_cleanup(ab); mutex_unlock(&ab->core_lock); ath12k_dp_free(ab); ath12k_hal_srng_deinit(ab); ab->free_vdev_map = (1LL << (ab->num_radios * TARGET_NUM_VDEVS)) - 1; ret = ath12k_hal_srng_init(ab); if (ret) return ret; clear_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags); ret = ath12k_core_qmi_firmware_ready(ab); if (ret) goto err_hal_srng_deinit; clear_bit(ATH12K_FLAG_RECOVERY, &ab->dev_flags); return 0; err_hal_srng_deinit: ath12k_hal_srng_deinit(ab); return ret; } static void ath12k_rfkill_work(struct work_struct *work) { struct ath12k_base *ab = container_of(work, struct ath12k_base, rfkill_work); struct ath12k *ar; struct ath12k_hw *ah; struct ieee80211_hw *hw; bool rfkill_radio_on; int i, j; spin_lock_bh(&ab->base_lock); rfkill_radio_on = ab->rfkill_radio_on; spin_unlock_bh(&ab->base_lock); for (i = 0; i < ab->num_hw; i++) { ah = ab->ah[i]; if (!ah) continue; for (j = 0; j < ah->num_radio; j++) { ar = &ah->radio[j]; if (!ar) continue; ath12k_mac_rfkill_enable_radio(ar, rfkill_radio_on); } hw = ah->hw; wiphy_rfkill_set_hw_state(hw->wiphy, !rfkill_radio_on); } } void ath12k_core_halt(struct ath12k *ar) { struct ath12k_base *ab = ar->ab; lockdep_assert_held(&ar->conf_mutex); ar->num_created_vdevs = 0; ar->allocated_vdev_map = 0; ath12k_mac_scan_finish(ar); ath12k_mac_peer_cleanup_all(ar); cancel_delayed_work_sync(&ar->scan.timeout); cancel_work_sync(&ar->regd_update_work); cancel_work_sync(&ab->rfkill_work); rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx], NULL); synchronize_rcu(); INIT_LIST_HEAD(&ar->arvifs); idr_init(&ar->txmgmt_idr); } static void ath12k_core_pre_reconfigure_recovery(struct ath12k_base *ab) { struct ath12k *ar; struct ath12k_hw *ah; int i, j; spin_lock_bh(&ab->base_lock); ab->stats.fw_crash_counter++; spin_unlock_bh(&ab->base_lock); if (ab->is_reset) set_bit(ATH12K_FLAG_CRASH_FLUSH, &ab->dev_flags); for (i = 0; i < ab->num_hw; i++) { ah = ab->ah[i]; if (!ah || ah->state == ATH12K_HW_STATE_OFF) continue; ieee80211_stop_queues(ah->hw); for (j = 0; j < ah->num_radio; j++) { ar = &ah->radio[j]; ath12k_mac_drain_tx(ar); complete(&ar->scan.started); complete(&ar->scan.completed); complete(&ar->scan.on_channel); complete(&ar->peer_assoc_done); complete(&ar->peer_delete_done); complete(&ar->install_key_done); complete(&ar->vdev_setup_done); complete(&ar->vdev_delete_done); complete(&ar->bss_survey_done); wake_up(&ar->dp.tx_empty_waitq); idr_for_each(&ar->txmgmt_idr, ath12k_mac_tx_mgmt_pending_free, ar); idr_destroy(&ar->txmgmt_idr); wake_up(&ar->txmgmt_empty_waitq); } } wake_up(&ab->wmi_ab.tx_credits_wq); wake_up(&ab->peer_mapping_wq); } static void ath12k_core_post_reconfigure_recovery(struct ath12k_base *ab) { struct ath12k_hw *ah; struct ath12k *ar; int i, j; for (i = 0; i < ab->num_hw; i++) { ah = ab->ah[i]; if (!ah || ah->state == ATH12K_HW_STATE_OFF) continue; mutex_lock(&ah->hw_mutex); switch (ah->state) { case ATH12K_HW_STATE_ON: ah->state = ATH12K_HW_STATE_RESTARTING; for (j = 0; j < ah->num_radio; j++) { ar = &ah->radio[j]; mutex_lock(&ar->conf_mutex); ath12k_core_halt(ar); mutex_unlock(&ar->conf_mutex); } break; case ATH12K_HW_STATE_OFF: ath12k_warn(ab, "cannot restart hw %d that hasn't been started\n", i); break; case ATH12K_HW_STATE_RESTARTING: break; case ATH12K_HW_STATE_RESTARTED: ah->state = ATH12K_HW_STATE_WEDGED; fallthrough; case ATH12K_HW_STATE_WEDGED: ath12k_warn(ab, "device is wedged, will not restart hw %d\n", i); break; } mutex_unlock(&ah->hw_mutex); } complete(&ab->driver_recovery); } static void ath12k_core_restart(struct work_struct *work) { struct ath12k_base *ab = container_of(work, struct ath12k_base, restart_work); struct ath12k_hw *ah; int ret, i; ret = ath12k_core_reconfigure_on_crash(ab); if (ret) { ath12k_err(ab, "failed to reconfigure driver on crash recovery\n"); return; } if (ab->is_reset) { for (i = 0; i < ab->num_hw; i++) { ah = ab->ah[i]; ieee80211_restart_hw(ah->hw); } } complete(&ab->restart_completed); } static void ath12k_core_reset(struct work_struct *work) { struct ath12k_base *ab = container_of(work, struct ath12k_base, reset_work); int reset_count, fail_cont_count; long time_left; if (!(test_bit(ATH12K_FLAG_REGISTERED, &ab->dev_flags))) { ath12k_warn(ab, "ignore reset dev flags 0x%lx\n", ab->dev_flags); return; } /* Sometimes the recovery will fail and then the next all recovery fail, * this is to avoid infinite recovery since it can not recovery success */ fail_cont_count = atomic_read(&ab->fail_cont_count); if (fail_cont_count >= ATH12K_RESET_MAX_FAIL_COUNT_FINAL) return; if (fail_cont_count >= ATH12K_RESET_MAX_FAIL_COUNT_FIRST && time_before(jiffies, ab->reset_fail_timeout)) return; reset_count = atomic_inc_return(&ab->reset_count); if (reset_count > 1) { /* Sometimes it happened another reset worker before the previous one * completed, then the second reset worker will destroy the previous one, * thus below is to avoid that. */ ath12k_warn(ab, "already resetting count %d\n", reset_count); reinit_completion(&ab->reset_complete); time_left = wait_for_completion_timeout(&ab->reset_complete, ATH12K_RESET_TIMEOUT_HZ); if (time_left) { ath12k_dbg(ab, ATH12K_DBG_BOOT, "to skip reset\n"); atomic_dec(&ab->reset_count); return; } ab->reset_fail_timeout = jiffies + ATH12K_RESET_FAIL_TIMEOUT_HZ; /* Record the continuous recovery fail count when recovery failed*/ fail_cont_count = atomic_inc_return(&ab->fail_cont_count); } ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset starting\n"); ab->is_reset = true; atomic_set(&ab->recovery_count, 0); ath12k_core_pre_reconfigure_recovery(ab); ath12k_core_post_reconfigure_recovery(ab); ath12k_dbg(ab, ATH12K_DBG_BOOT, "waiting recovery start...\n"); ath12k_hif_irq_disable(ab); ath12k_hif_ce_irq_disable(ab); ath12k_hif_power_down(ab, false); ath12k_hif_power_up(ab); ath12k_dbg(ab, ATH12K_DBG_BOOT, "reset started\n"); } int ath12k_core_pre_init(struct ath12k_base *ab) { int ret; ret = ath12k_hw_init(ab); if (ret) { ath12k_err(ab, "failed to init hw params: %d\n", ret); return ret; } ath12k_fw_map(ab); return 0; } static int ath12k_core_panic_handler(struct notifier_block *nb, unsigned long action, void *data) { struct ath12k_base *ab = container_of(nb, struct ath12k_base, panic_nb); return ath12k_hif_panic_handler(ab); } static int ath12k_core_panic_notifier_register(struct ath12k_base *ab) { ab->panic_nb.notifier_call = ath12k_core_panic_handler; return atomic_notifier_chain_register(&panic_notifier_list, &ab->panic_nb); } static void ath12k_core_panic_notifier_unregister(struct ath12k_base *ab) { atomic_notifier_chain_unregister(&panic_notifier_list, &ab->panic_nb); } int ath12k_core_init(struct ath12k_base *ab) { int ret; ret = ath12k_core_soc_create(ab); if (ret) { ath12k_err(ab, "failed to create soc core: %d\n", ret); return ret; } ret = ath12k_core_panic_notifier_register(ab); if (ret) ath12k_warn(ab, "failed to register panic handler: %d\n", ret); return 0; } void ath12k_core_deinit(struct ath12k_base *ab) { ath12k_core_panic_notifier_unregister(ab); mutex_lock(&ab->core_lock); ath12k_core_pdev_destroy(ab); ath12k_core_stop(ab); mutex_unlock(&ab->core_lock); ath12k_hif_power_down(ab, false); ath12k_mac_destroy(ab); ath12k_core_soc_destroy(ab); ath12k_fw_unmap(ab); } void ath12k_core_free(struct ath12k_base *ab) { timer_delete_sync(&ab->rx_replenish_retry); destroy_workqueue(ab->workqueue_aux); destroy_workqueue(ab->workqueue); kfree(ab); } struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size, enum ath12k_bus bus) { struct ath12k_base *ab; ab = kzalloc(sizeof(*ab) + priv_size, GFP_KERNEL); if (!ab) return NULL; init_completion(&ab->driver_recovery); ab->workqueue = create_singlethread_workqueue("ath12k_wq"); if (!ab->workqueue) goto err_sc_free; ab->workqueue_aux = create_singlethread_workqueue("ath12k_aux_wq"); if (!ab->workqueue_aux) goto err_free_wq; mutex_init(&ab->core_lock); spin_lock_init(&ab->base_lock); init_completion(&ab->reset_complete); INIT_LIST_HEAD(&ab->peers); init_waitqueue_head(&ab->peer_mapping_wq); init_waitqueue_head(&ab->wmi_ab.tx_credits_wq); INIT_WORK(&ab->restart_work, ath12k_core_restart); INIT_WORK(&ab->reset_work, ath12k_core_reset); INIT_WORK(&ab->rfkill_work, ath12k_rfkill_work); timer_setup(&ab->rx_replenish_retry, ath12k_ce_rx_replenish_retry, 0); init_completion(&ab->htc_suspend); init_completion(&ab->restart_completed); init_completion(&ab->wow.wakeup_completed); ab->dev = dev; ab->hif.bus = bus; ab->qmi.num_radios = U8_MAX; ab->mlo_capable_flags = ATH12K_INTRA_DEVICE_MLO_SUPPORT; /* Device index used to identify the devices in a group. * * In Intra-device MLO, only one device present in a group, * so it is always zero. * * In Inter-device MLO, Multiple device present in a group, * expect non-zero value. */ ab->device_id = 0; return ab; err_free_wq: destroy_workqueue(ab->workqueue); err_sc_free: kfree(ab); return NULL; } MODULE_DESCRIPTION("Core module for Qualcomm Atheros 802.11be wireless LAN cards."); MODULE_LICENSE("Dual BSD/GPL");
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