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9673c35486
The TOP is a shared (between BT and WiFi) hardware component, and if it has an error we need to reset the whole device, i.e. both BT and WiFi. This is achieved by calling a specific ACPI DSM (device-specific method) with the right arguments before doing a reset via the object referenced by _PRR. Since this is needed here, but a function reset will always do better than just re-enumerating the bus in case of errors, we can always try to at least do a function reset and do the full product reset only when needed for TOP errors. Also, for some Bz and Sc devices where BT is PCIe/IOSF as well, find the BT device and unbind that device as well so the BT driver can recover from the reset that's going to happen, rather than having to somehow detect that the device was reset. Also add - currently unused - the function reset mode, this is going to get used in the upcoming escalation model. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20241231135726.5b0f846d3e13.Ia14ccac38ac3d48adf5f341b17c7e34ccc41c065@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
272 lines
7.2 KiB
C
272 lines
7.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright (C) 2017 Intel Deutschland GmbH
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* Copyright (C) 2018-2023 Intel Corporation
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*/
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#ifndef __iwl_fw_acpi__
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#define __iwl_fw_acpi__
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#include <linux/acpi.h>
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#include "fw/regulatory.h"
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#include "fw/api/commands.h"
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#include "fw/api/power.h"
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#include "fw/api/phy.h"
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#include "fw/api/nvm-reg.h"
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#include "fw/api/config.h"
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#include "fw/img.h"
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#include "iwl-trans.h"
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#define ACPI_WRDS_METHOD "WRDS"
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#define ACPI_EWRD_METHOD "EWRD"
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#define ACPI_WGDS_METHOD "WGDS"
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#define ACPI_WRDD_METHOD "WRDD"
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#define ACPI_SPLC_METHOD "SPLC"
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#define ACPI_ECKV_METHOD "ECKV"
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#define ACPI_PPAG_METHOD "PPAG"
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#define ACPI_WTAS_METHOD "WTAS"
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#define ACPI_WPFC_METHOD "WPFC"
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#define ACPI_GLAI_METHOD "GLAI"
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#define ACPI_WBEM_METHOD "WBEM"
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#define ACPI_DSBR_METHOD "DSBR"
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#define ACPI_WIFI_DOMAIN (0x07)
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#define ACPI_SAR_PROFILE_NUM 4
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#define ACPI_NUM_GEO_PROFILES 3
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#define ACPI_NUM_GEO_PROFILES_REV3 8
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#define ACPI_GEO_PER_CHAIN_SIZE 3
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#define ACPI_SAR_NUM_CHAINS_REV0 2
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#define ACPI_SAR_NUM_CHAINS_REV1 2
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#define ACPI_SAR_NUM_CHAINS_REV2 4
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#define ACPI_SAR_NUM_SUB_BANDS_REV0 5
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#define ACPI_SAR_NUM_SUB_BANDS_REV1 11
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#define ACPI_SAR_NUM_SUB_BANDS_REV2 11
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#define ACPI_WRDS_WIFI_DATA_SIZE_REV0 (ACPI_SAR_NUM_CHAINS_REV0 * \
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ACPI_SAR_NUM_SUB_BANDS_REV0 + 2)
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#define ACPI_WRDS_WIFI_DATA_SIZE_REV1 (ACPI_SAR_NUM_CHAINS_REV1 * \
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ACPI_SAR_NUM_SUB_BANDS_REV1 + 2)
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#define ACPI_WRDS_WIFI_DATA_SIZE_REV2 (ACPI_SAR_NUM_CHAINS_REV2 * \
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ACPI_SAR_NUM_SUB_BANDS_REV2 + 2)
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#define ACPI_EWRD_WIFI_DATA_SIZE_REV0 ((ACPI_SAR_PROFILE_NUM - 1) * \
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ACPI_SAR_NUM_CHAINS_REV0 * \
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ACPI_SAR_NUM_SUB_BANDS_REV0 + 3)
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#define ACPI_EWRD_WIFI_DATA_SIZE_REV1 ((ACPI_SAR_PROFILE_NUM - 1) * \
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ACPI_SAR_NUM_CHAINS_REV1 * \
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ACPI_SAR_NUM_SUB_BANDS_REV1 + 3)
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#define ACPI_EWRD_WIFI_DATA_SIZE_REV2 ((ACPI_SAR_PROFILE_NUM - 1) * \
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ACPI_SAR_NUM_CHAINS_REV2 * \
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ACPI_SAR_NUM_SUB_BANDS_REV2 + 3)
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#define ACPI_WPFC_WIFI_DATA_SIZE 5 /* domain and 4 filter config words */
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/* revision 0 and 1 are identical, except for the semantics in the FW */
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#define ACPI_GEO_NUM_BANDS_REV0 2
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#define ACPI_GEO_NUM_BANDS_REV2 3
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#define ACPI_WRDD_WIFI_DATA_SIZE 2
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#define ACPI_SPLC_WIFI_DATA_SIZE 2
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#define ACPI_ECKV_WIFI_DATA_SIZE 2
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/*
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* One element for domain type,
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* and one for enablement of Wi-Fi 320MHz per MCC
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*/
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#define ACPI_WBEM_WIFI_DATA_SIZE 2
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/*
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* One element for domain type,
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* and one for DSBR response data
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*/
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#define ACPI_DSBR_WIFI_DATA_SIZE 2
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#define ACPI_DSBR_WIFI_DATA_REV 1
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/*
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* One element for domain type,
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* and one for the status
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*/
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#define ACPI_GLAI_WIFI_DATA_SIZE 2
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#define ACPI_GLAI_MAX_STATUS 2
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/*
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* TAS size: 1 elelment for type,
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* 1 element for enabled field,
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* 1 element for block list size,
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* 16 elements for block list array
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*/
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#define ACPI_WTAS_WIFI_DATA_SIZE (3 + IWL_WTAS_BLACK_LIST_MAX)
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#define ACPI_PPAG_WIFI_DATA_SIZE_V1 ((IWL_NUM_CHAIN_LIMITS * \
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IWL_NUM_SUB_BANDS_V1) + 2)
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#define ACPI_PPAG_WIFI_DATA_SIZE_V2 ((IWL_NUM_CHAIN_LIMITS * \
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IWL_NUM_SUB_BANDS_V2) + 2)
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#define IWL_SAR_ENABLE_MSK BIT(0)
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#define IWL_REDUCE_POWER_FLAGS_POS 1
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/* The Inidcator whether UEFI WIFI GUID tables are locked is read from ACPI */
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#define UEFI_WIFI_GUID_UNLOCKED 0
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#define ACPI_DSM_REV 0
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#define DSM_INTERNAL_FUNC_GET_PLAT_INFO 1
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/* TBD: VPRO is BIT(0) in the result, but what's the result? */
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#define DSM_INTERNAL_FUNC_PRODUCT_RESET 2
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/* DSM_INTERNAL_FUNC_PRODUCT_RESET - product reset (aka "PLDR") */
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enum iwl_dsm_internal_product_reset_cmds {
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DSM_INTERNAL_PLDR_CMD_GET_MODE = 1,
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DSM_INTERNAL_PLDR_CMD_SET_MODE = 2,
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DSM_INTERNAL_PLDR_CMD_GET_STATUS = 3,
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};
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enum iwl_dsm_internal_product_reset_mode {
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DSM_INTERNAL_PLDR_MODE_EN_PROD_RESET = BIT(0),
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DSM_INTERNAL_PLDR_MODE_EN_WIFI_FLR = BIT(1),
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DSM_INTERNAL_PLDR_MODE_EN_BT_OFF_ON = BIT(2),
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};
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struct iwl_dsm_internal_product_reset_cmd {
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/* cmd is from enum iwl_dsm_internal_product_reset_cmds */
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u16 cmd;
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u16 value;
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} __packed;
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#define IWL_ACPI_WBEM_REV0_MASK (BIT(0) | BIT(1))
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#define IWL_ACPI_WBEM_REVISION 0
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#ifdef CONFIG_ACPI
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struct iwl_fw_runtime;
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extern const guid_t iwl_guid;
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union acpi_object *iwl_acpi_get_dsm_object(struct device *dev, int rev,
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int func, union acpi_object *args,
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const guid_t *guid);
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/**
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* iwl_acpi_get_mcc - read MCC from ACPI, if available
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*
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* @fwrt: the fw runtime struct
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* @mcc: output buffer (3 bytes) that will get the MCC
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*
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* This function tries to read the current MCC from ACPI if available.
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*/
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int iwl_acpi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc);
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int iwl_acpi_get_pwr_limit(struct iwl_fw_runtime *fwrt, u64 *dflt_pwr_limit);
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/*
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* iwl_acpi_get_eckv - read external clock validation from ACPI, if available
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*
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* @fwrt: the fw runtime struct
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* @extl_clk: output var (2 bytes) that will get the clk indication.
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*
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* This function tries to read the external clock indication
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* from ACPI if available.
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*/
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int iwl_acpi_get_eckv(struct iwl_fw_runtime *fwrt, u32 *extl_clk);
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int iwl_acpi_get_wrds_table(struct iwl_fw_runtime *fwrt);
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int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt);
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int iwl_acpi_get_wgds_table(struct iwl_fw_runtime *fwrt);
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int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
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struct iwl_tas_data *data);
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int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt);
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void iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt,
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struct iwl_phy_specific_cfg *filters);
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void iwl_acpi_get_guid_lock_status(struct iwl_fw_runtime *fwrt);
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int iwl_acpi_get_dsm(struct iwl_fw_runtime *fwrt,
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enum iwl_dsm_funcs func, u32 *value);
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int iwl_acpi_get_wbem(struct iwl_fw_runtime *fwrt, u32 *value);
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int iwl_acpi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value);
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#else /* CONFIG_ACPI */
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static inline union acpi_object *
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iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
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union acpi_object *args, const guid_t *guid)
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{
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return ERR_PTR(-ENOENT);
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}
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static inline int iwl_acpi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_pwr_limit(struct iwl_fw_runtime *fwrt,
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u64 *dflt_pwr_limit)
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{
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*dflt_pwr_limit = 0;
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return 0;
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}
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static inline int iwl_acpi_get_eckv(struct iwl_fw_runtime *fwrt, u32 *extl_clk)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_wrds_table(struct iwl_fw_runtime *fwrt)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_ewrd_table(struct iwl_fw_runtime *fwrt)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_wgds_table(struct iwl_fw_runtime *fwrt)
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{
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return 1;
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}
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static inline int iwl_acpi_get_tas_table(struct iwl_fw_runtime *fwrt,
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struct iwl_tas_data *data)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
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{
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return -ENOENT;
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}
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/* macro since the second argument doesn't always exist */
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#define iwl_acpi_get_phy_filters(fwrt, filters) do { } while (0)
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static inline void iwl_acpi_get_guid_lock_status(struct iwl_fw_runtime *fwrt)
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{
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}
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static inline int iwl_acpi_get_dsm(struct iwl_fw_runtime *fwrt,
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enum iwl_dsm_funcs func, u32 *value)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_wbem(struct iwl_fw_runtime *fwrt, u32 *value)
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{
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return -ENOENT;
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}
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static inline int iwl_acpi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value)
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{
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return -ENOENT;
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}
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#endif /* CONFIG_ACPI */
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#endif /* __iwl_fw_acpi__ */
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