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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
commit | 9f0fc191371843c4fc000a226b0a26b6c059aacd (patch) | |
tree | 35f8be3ef04506ac891ad001e8c41e535ae8d01d /drivers/net/wireless/intel/iwlwifi/fw/uefi.c | |
parent | Releasing progress-linux version 6.6.15-2~progress7.99u1. (diff) | |
download | linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/uefi.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c index 9877988db0..2964c5fb11 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c @@ -388,4 +388,54 @@ void iwl_uefi_get_sgom_table(struct iwl_trans *trans, kfree(data); } IWL_EXPORT_SYMBOL(iwl_uefi_get_sgom_table); + +static int iwl_uefi_uats_parse(struct uefi_cnv_wlan_uats_data *uats_data, + struct iwl_fw_runtime *fwrt) +{ + if (uats_data->revision != 1) + return -EINVAL; + + memcpy(fwrt->uats_table.offset_map, uats_data->offset_map, + sizeof(fwrt->uats_table.offset_map)); + return 0; +} + +int iwl_uefi_get_uats_table(struct iwl_trans *trans, + struct iwl_fw_runtime *fwrt) +{ + struct uefi_cnv_wlan_uats_data *data; + unsigned long package_size; + int ret; + + data = iwl_uefi_get_variable(IWL_UEFI_UATS_NAME, &IWL_EFI_VAR_GUID, + &package_size); + if (IS_ERR(data)) { + IWL_DEBUG_FW(trans, + "UATS UEFI variable not found 0x%lx\n", + PTR_ERR(data)); + return -EINVAL; + } + + if (package_size < sizeof(*data)) { + IWL_DEBUG_FW(trans, + "Invalid UATS table UEFI variable len (%lu)\n", + package_size); + kfree(data); + return -EINVAL; + } + + IWL_DEBUG_FW(trans, "Read UATS from UEFI with size %lu\n", + package_size); + + ret = iwl_uefi_uats_parse(data, fwrt); + if (ret < 0) { + IWL_DEBUG_FW(trans, "Cannot read UATS table. rev is invalid\n"); + kfree(data); + return ret; + } + + kfree(data); + return 0; +} +IWL_EXPORT_SYMBOL(iwl_uefi_get_uats_table); #endif /* CONFIG_ACPI */ |