diff options
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) { |