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authorMiri Korenblit <miriam.rachel.korenblit@intel.com>2024-02-01 16:17:32 +0200
committerJohannes Berg <johannes.berg@intel.com>2024-02-02 14:37:27 +0100
commit20935f3e646e687f32f044d9d75a4a8637c086db (patch)
tree1c858527e7315b8530b1bf245cd750b5bce2f802 /drivers/net/wireless/intel/iwlwifi/fw/uefi.h
parent669761e897a4fc87ae0e4625590f2a396a87a3d1 (diff)
wifi: iwlwifi: read ECKV table from UEFI
Try to read the ECKV table from UEFI first, and if the WIFI UEFI tables are unlocked or the table doesn't exist - try to read it from ACPI. Change iwl_acpi_get_eckv() to receive fwrt as argument so it will be the same as all iwl_acpi_get_x() functions, so it could be generated by the macro. While at it - move the reading of ECKV to INIT stage. There is no reason to read it each time we load the FW. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://msgid.link/20240201155157.d4937cc00727.I36e5fc7f7850229b9b377c80b5203aa47137c97c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/uefi.h')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/uefi.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
index 62bbd5c992b9..723933b0b2f1 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
@@ -19,6 +19,7 @@
#define IWL_UEFI_WTAS_NAME L"UefiCnvWlanWTAS"
#define IWL_UEFI_SPLC_NAME L"UefiCnvWlanSPLC"
#define IWL_UEFI_WRDD_NAME L"UefiCnvWlanWRDD"
+#define IWL_UEFI_ECKV_NAME L"UefiCnvWlanECKV"
#define IWL_SGOM_MAP_SIZE 339
@@ -32,6 +33,7 @@
#define IWL_UEFI_WTAS_REVISION 1
#define IWL_UEFI_SPLC_REVISION 0
#define IWL_UEFI_WRDD_REVISION 0
+#define IWL_UEFI_ECKV_REVISION 0
struct pnvm_sku_package {
u8 rev;
@@ -155,6 +157,15 @@ struct uefi_cnv_var_wrdd {
u32 mcc;
} __packed;
+/* struct uefi_cnv_var_eckv - ECKV table as defined in UEFI
+ * @revision: the revision of the table
+ * @ext_clock_valid: indicates if external 32KHz clock is valid
+ */
+struct uefi_cnv_var_eckv {
+ u8 revision;
+ u32 ext_clock_valid;
+} __packed;
+
/*
* This is known to be broken on v4.19 and to work on v5.4. Until we
* figure out why this is the case and how to make it work, simply
@@ -178,6 +189,7 @@ int iwl_uefi_get_tas_table(struct iwl_fw_runtime *fwrt,
int iwl_uefi_get_pwr_limit(struct iwl_fw_runtime *fwrt,
u64 *dflt_pwr_limit);
int iwl_uefi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc);
+int iwl_uefi_get_eckv(struct iwl_fw_runtime *fwrt, u32 *extl_clk);
#else /* CONFIG_EFI */
static inline void *iwl_uefi_get_pnvm(struct iwl_trans *trans, size_t *len)
{
@@ -246,6 +258,11 @@ static inline int iwl_uefi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc)
{
return -ENOENT;
}
+
+static inline int iwl_uefi_get_eckv(struct iwl_fw_runtime *fwrt, u32 *extl_clk)
+{
+ return -ENOENT;
+}
#endif /* CONFIG_EFI */
#if defined(CONFIG_EFI) && defined(CONFIG_ACPI)