diff options
| author | Miri Korenblit <miriam.rachel.korenblit@intel.com> | 2021-06-12 14:32:34 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-06-22 15:11:06 +0300 |
| commit | 7119f02b5d3449cea7736161590ae45289a57963 (patch) | |
| tree | d5932c9f4992e7e30f5667fa47955dc7a8a5ca53 /drivers/net/wireless/intel/iwlwifi/fw/acpi.c | |
| parent | adf6a0f8c0a656df3d29403f314bf3e0dbb2dd77 (diff) | |
iwlwifi: mvm: support BIOS enable/disable for 11ax in Russia
Read the new BIOS DSM and Pass to FW if to disable\enable
11ax for Russia according to the BIOS key. This is
needed to enable OEMs to control enable/disable 11ax in Russia.
Also add support for future "enable 11ax in country X" features.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210612142637.a705f7cedff8.I580f1021cabcc37e88f5ec5e9a6bbf00aae514b6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/acpi.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 50 |
1 files changed, 38 insertions, 12 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index e31bba836c6f..8cf7bc3aa09a 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -163,6 +163,27 @@ int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func, } IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u8); +/* + * Evaluate a DSM with no arguments and a u32 return value, + */ +int iwl_acpi_get_dsm_u32(struct device *dev, int rev, int func, + const guid_t *guid, u32 *value) +{ + int ret; + u64 val; + + ret = iwl_acpi_get_dsm_integer(dev, rev, func, + guid, &val, sizeof(u32)); + + if (ret < 0) + return ret; + + /* cast val (u64) to be u32 */ + *value = (u32)val; + return 0; +} +IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u32); + union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev, union acpi_object *data, int data_size, int *tbl_rev) @@ -734,30 +755,35 @@ out: __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt) { - u32 ret; + int ret; + u8 value; __le32 config_bitmap = 0; /* ** Evaluate func 'DSM_FUNC_ENABLE_INDONESIA_5G2' */ - ret = iwl_acpi_eval_dsm_func(fwrt->dev, DSM_FUNC_ENABLE_INDONESIA_5G2); + ret = iwl_acpi_get_dsm_u8(fwrt->dev, 0, + DSM_FUNC_ENABLE_INDONESIA_5G2, + &iwl_guid, &value); - if (ret == DSM_VALUE_INDONESIA_ENABLE) + if (!ret && value == DSM_VALUE_INDONESIA_ENABLE) config_bitmap |= cpu_to_le32(LARI_CONFIG_ENABLE_5G2_IN_INDONESIA_MSK); /* ** Evaluate func 'DSM_FUNC_DISABLE_SRD' */ - ret = iwl_acpi_eval_dsm_func(fwrt->dev, DSM_FUNC_DISABLE_SRD); - - if (ret == DSM_VALUE_SRD_PASSIVE) - config_bitmap |= - cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_PASSIVE_MSK); - - else if (ret == DSM_VALUE_SRD_DISABLE) - config_bitmap |= - cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK); + ret = iwl_acpi_get_dsm_u8(fwrt->dev, 0, + DSM_FUNC_DISABLE_SRD, + &iwl_guid, &value); + if (!ret) { + if (value == DSM_VALUE_SRD_PASSIVE) + config_bitmap |= + cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_PASSIVE_MSK); + else if (value == DSM_VALUE_SRD_DISABLE) + config_bitmap |= + cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK); + } return config_bitmap; } |