diff options
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 35 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/runtime.h | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 2 |
4 files changed, 53 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index 72a0a9565371..dd68d382d7de 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -1318,3 +1318,38 @@ out_free: kfree(data); } IWL_EXPORT_SYMBOL(iwl_acpi_get_phy_filters); + +void iwl_acpi_get_guid_lock_status(struct iwl_fw_runtime *fwrt) +{ + union acpi_object *wifi_pkg, *data; + int tbl_rev; + + data = iwl_acpi_get_object(fwrt->dev, ACPI_GLAI_METHOD); + if (IS_ERR(data)) + return; + + wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data, + ACPI_GLAI_WIFI_DATA_SIZE, + &tbl_rev); + if (IS_ERR(wifi_pkg)) + goto out_free; + + if (tbl_rev != 0) { + IWL_DEBUG_RADIO(fwrt, "Invalid GLAI revision: %d\n", tbl_rev); + goto out_free; + } + + if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER || + wifi_pkg->package.elements[1].integer.value > ACPI_GLAI_MAX_STATUS) + goto out_free; + + fwrt->uefi_tables_lock_status = + wifi_pkg->package.elements[1].integer.value; + + IWL_DEBUG_RADIO(fwrt, + "Loaded UEFI WIFI GUID lock status: %d from ACPI\n", + fwrt->uefi_tables_lock_status); +out_free: + kfree(data); +} +IWL_EXPORT_SYMBOL(iwl_acpi_get_guid_lock_status); diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h index 39106ccb4b9b..7b3c6fca7591 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h @@ -25,6 +25,7 @@ #define ACPI_PPAG_METHOD "PPAG" #define ACPI_WTAS_METHOD "WTAS" #define ACPI_WPFC_METHOD "WPFC" +#define ACPI_GLAI_METHOD "GLAI" #define ACPI_WIFI_DOMAIN (0x07) @@ -66,7 +67,12 @@ #define ACPI_WRDD_WIFI_DATA_SIZE 2 #define ACPI_SPLC_WIFI_DATA_SIZE 2 #define ACPI_ECKV_WIFI_DATA_SIZE 2 - +/* + * One element for domain type, + * and one for the status + */ +#define ACPI_GLAI_WIFI_DATA_SIZE 2 +#define ACPI_GLAI_MAX_STATUS 2 /* * TAS size: 1 elelment for type, * 1 element for enabled field, @@ -237,6 +243,8 @@ bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt); void iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt, struct iwl_phy_specific_cfg *filters); +void iwl_acpi_get_guid_lock_status(struct iwl_fw_runtime *fwrt); + #else /* CONFIG_ACPI */ static inline void *iwl_acpi_get_dsm_object(struct device *dev, int rev, @@ -331,6 +339,9 @@ static inline void iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt, { } +static inline void iwl_acpi_get_guid_lock_status(struct iwl_fw_runtime *fwrt) +{ +} #endif /* CONFIG_ACPI */ #endif /* __iwl_fw_acpi__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h index 357727774db9..1ec2bcdf92b8 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h @@ -100,6 +100,9 @@ struct iwl_txf_iter_data { * @dump: debug dump data * @uats_enabled: VLP or AFC AP is enabled * @uats_table: AP type table + * @uefi_tables_lock_status: The status of the WIFI GUID UEFI variables lock: + * 0: Unlocked, 1 and 2: Locked. + * Only read the UEFI variables if locked. */ struct iwl_fw_runtime { struct iwl_trans *trans; @@ -175,6 +178,7 @@ struct iwl_fw_runtime { u8 reduced_power_flags; bool uats_enabled; struct iwl_uats_table_cmd uats_table; + u8 uefi_tables_lock_status; #endif }; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 175024170357..a6db290923cd 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -1402,6 +1402,8 @@ void iwl_mvm_get_acpi_tables(struct iwl_mvm *mvm) { int ret; + iwl_acpi_get_guid_lock_status(&mvm->fwrt); + /* read PPAG table */ ret = iwl_acpi_get_ppag_table(&mvm->fwrt); if (ret < 0) { |