diff options
| author | Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> | 2024-04-15 11:54:42 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-04-19 10:15:44 +0200 |
| commit | 332ff43251855fead212f689b6e045809bc9acde (patch) | |
| tree | 192d531fdd9407d4a061b167b0e4ad8c6f23c39b /drivers/net/wireless/intel/iwlwifi/fw/uefi.c | |
| parent | c60fc06def4e7fa13d65aa833cc676fd4f4b2bcb (diff) | |
wifi: iwlwifi: Add support for LARI_CONFIG_CHANGE_CMD v10
Add support for enable/disable 320 MHz for Japan and South Korea
by reading WBEM (WiFi Bandwidth Enablement per MCC) variable from
UEFI or ACPI and sending it to the FW.
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240415114847.7946c3befbe1.I453c33f7ea48156ea2a3961f50a9003103fca5a5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/uefi.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c index e81fc0129b9d..fb982d4fe851 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c @@ -674,6 +674,29 @@ out: return ret; } +int iwl_uefi_get_wbem(struct iwl_fw_runtime *fwrt, u32 *value) +{ + struct uefi_cnv_wlan_wbem_data *data; + int ret = 0; + + data = iwl_uefi_get_verified_variable(fwrt->trans, IWL_UEFI_WBEM_NAME, + "WBEM", sizeof(*data), NULL); + if (IS_ERR(data)) + return -EINVAL; + + if (data->revision != IWL_UEFI_WBEM_REVISION) { + ret = -EINVAL; + IWL_DEBUG_RADIO(fwrt, "Unsupported UEFI WBEM revision:%d\n", + data->revision); + goto out; + } + *value = data->wbem_320mhz_per_mcc & IWL_UEFI_WBEM_REV0_MASK; + IWL_DEBUG_RADIO(fwrt, "Loaded WBEM config from UEFI\n"); +out: + kfree(data); + return ret; +} + int iwl_uefi_get_dsm(struct iwl_fw_runtime *fwrt, enum iwl_dsm_funcs func, u32 *value) { |