From ad5a85d8fdd346ecc34217e3bd713bf0b519912d Mon Sep 17 00:00:00 2001
From: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Date: Wed, 31 Jan 2024 10:24:45 +0200
Subject: wifi: iwlwifi: prepare for reading TAS table from UEFI
We are going to support reading BIOS tables from UEFI
too, Refactor the TAS table flow:
1. Rename and move the common code to the regulatory.h/c files.
2. Remove the IWL_TAS_BLOCK_LIST_MAX, as we can use IWL_WTAS_BLACK_LIST_MAX
instead.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240131091413.0c2197cf1feb.Ib0e83d5bd3f4d5cfa9c3d2925317ba49377d257f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
drivers/net/wireless/intel/iwlwifi/fw/regulatory.c | 91 ++++++++++++++++++++++
1 file changed, 91 insertions(+)
(limited to 'drivers/net/wireless/intel/iwlwifi/fw/regulatory.c')
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
index fb4df1ff061d..570d8e74f839 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
@@ -3,6 +3,7 @@
* Copyright (C) 2023 Intel Corporation
*/
#include <linux/dmi.h>
+#include "fw/api/nvm-reg.h"
#include "iwl-drv.h"
#include "iwl-debug.h"
#include "regulatory.h"
@@ -83,6 +84,62 @@ static const struct dmi_system_id dmi_ppag_approved_list[] = {
{}
};
+static const struct dmi_system_id dmi_tas_approved_list[] = {
+ { .ident = "HP",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+ },
+ },
+ { .ident = "SAMSUNG",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
+ },
+ },
+ { .ident = "LENOVO",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ },
+ },
+ { .ident = "DELL",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ },
+ },
+ { .ident = "MSFT",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ },
+ },
+ { .ident = "Acer",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ },
+ },
+ { .ident = "ASUS",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ },
+ },
+ { .ident = "GOOGLE-HP",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Google"),
+ DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
+ },
+ },
+ { .ident = "MSI",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International Co., Ltd."),
+ },
+ },
+ { .ident = "Honor",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HONOR"),
+ },
+ },
+ /* keep last */
+ {}
+};
+
bool iwl_sar_geo_support(struct iwl_fw_runtime *fwrt)
{
/*
@@ -335,3 +392,37 @@ bool iwl_is_ppag_approved(struct iwl_fw_runtime *fwrt)
return true;
}
IWL_EXPORT_SYMBOL(iwl_is_ppag_approved);
+
+bool iwl_is_tas_approved(void)
+{
+ return dmi_check_system(dmi_tas_approved_list);
+}
+IWL_EXPORT_SYMBOL(iwl_is_tas_approved);
+
+int iwl_parse_tas_selection(struct iwl_fw_runtime *fwrt,
+ union iwl_tas_config_cmd *cmd, int fw_ver,
+ const u32 tas_selection)
+{
+ u8 override_iec = u32_get_bits(tas_selection,
+ IWL_WTAS_OVERRIDE_IEC_MSK);
+ u8 enabled_iec = u32_get_bits(tas_selection, IWL_WTAS_ENABLE_IEC_MSK);
+ u8 usa_tas_uhb = u32_get_bits(tas_selection, IWL_WTAS_USA_UHB_MSK);
+ int enabled = tas_selection & IWL_WTAS_ENABLED_MSK;
+
+ IWL_DEBUG_RADIO(fwrt, "TAS selection as read from BIOS: 0x%x\n",
+ tas_selection);
+
+ if (fw_ver < 3)
+ return enabled;
+
+ if (fw_ver == 3) {
+ cmd->v3.override_tas_iec = cpu_to_le16(override_iec);
+ cmd->v3.enable_tas_iec = cpu_to_le16(enabled_iec);
+ } else {
+ cmd->v4.usa_tas_uhb_allowed = usa_tas_uhb;
+ cmd->v4.override_tas_iec = override_iec;
+ cmd->v4.enable_tas_iec = enabled_iec;
+ }
+
+ return enabled;
+}
--
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