From patchwork Fri Jan 28 13:34:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 12728571 X-Patchwork-Delegate: luca@coelho.fi Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44200C433EF for ; Fri, 28 Jan 2022 13:34:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348921AbiA1Nem (ORCPT ); Fri, 28 Jan 2022 08:34:42 -0500 Received: from paleale.coelho.fi ([176.9.41.70]:37844 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1348902AbiA1Nej (ORCPT ); Fri, 28 Jan 2022 08:34:39 -0500 Received: from 91-155-254-253.elisa-laajakaista.fi ([91.155.254.253] helo=kveik.lan) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1nDROe-0002DK-KU; Fri, 28 Jan 2022 15:34:38 +0200 From: Luca Coelho To: kvalo@kernel.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Fri, 28 Jan 2022 15:34:22 +0200 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220128133433.591765-1-luca@coelho.fi> References: <20220128133433.591765-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 02/13] iwlwifi: mvm: allow enabling UHB TAS in the USA via ACPI setting Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Ayala Barazani Read a new bit defined in ACPI WTAS that allows OEMs to specify whether TAS is allowed in UHB (6-7GHz) in the USA. This can be used by OEMs that got certified to use this feature. Signed-off-by: Ayala Barazani Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 18 +++++++++---- drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 6 +++-- .../wireless/intel/iwlwifi/fw/api/nvm-reg.h | 24 +++++++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 26 +++++++++++-------- 4 files changed, 56 insertions(+), 18 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index 790c96df58cb..0e9e61508ae5 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -242,7 +242,7 @@ union acpi_object *iwl_acpi_get_wifi_pkg_range(struct device *dev, IWL_EXPORT_SYMBOL(iwl_acpi_get_wifi_pkg_range); int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, - struct iwl_tas_config_cmd_v3 *cmd) + union iwl_tas_config_cmd *cmd, int fw_ver) { union acpi_object *wifi_pkg, *data; int ret, tbl_rev, i, block_list_size, enabled; @@ -268,10 +268,18 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, (tas_selection & ACPI_WTAS_OVERRIDE_IEC_MSK) >> ACPI_WTAS_OVERRIDE_IEC_POS; u16 enabled_iec = (tas_selection & ACPI_WTAS_ENABLE_IEC_MSK) >> ACPI_WTAS_ENABLE_IEC_POS; + u8 usa_tas_uhb = (tas_selection & ACPI_WTAS_USA_UHB_MSK) >> ACPI_WTAS_USA_UHB_POS; + enabled = tas_selection & ACPI_WTAS_ENABLED_MSK; - cmd->override_tas_iec = cpu_to_le16(override_iec); - cmd->enable_tas_iec = cpu_to_le16(enabled_iec); + 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 = (u8)override_iec; + cmd->v4.enable_tas_iec = (u8)enabled_iec; + } } else if (tbl_rev == 0 && wifi_pkg->package.elements[1].type == ACPI_TYPE_INTEGER) { @@ -297,7 +305,7 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, goto out_free; } block_list_size = wifi_pkg->package.elements[2].integer.value; - cmd->block_list_size = cpu_to_le32(block_list_size); + cmd->v4.block_list_size = cpu_to_le32(block_list_size); IWL_DEBUG_RADIO(fwrt, "TAS array size %u\n", block_list_size); if (block_list_size > APCI_WTAS_BLACK_LIST_MAX) { @@ -319,7 +327,7 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, } country = wifi_pkg->package.elements[3 + i].integer.value; - cmd->block_list_array[i] = cpu_to_le32(country); + cmd->v4.block_list_array[i] = cpu_to_le32(country); IWL_DEBUG_RADIO(fwrt, "TAS block list country %d\n", country); } diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h index 22b3c665f91a..5ac0979123fc 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h @@ -77,6 +77,8 @@ #define ACPI_WTAS_ENABLE_IEC_MSK 0x4 #define ACPI_WTAS_OVERRIDE_IEC_POS 0x1 #define ACPI_WTAS_ENABLE_IEC_POS 0x2 +#define ACPI_WTAS_USA_UHB_MSK BIT(16) +#define ACPI_WTAS_USA_UHB_POS 16 #define ACPI_PPAG_WIFI_DATA_SIZE_V1 ((IWL_NUM_CHAIN_LIMITS * \ @@ -213,7 +215,7 @@ int iwl_sar_geo_init(struct iwl_fw_runtime *fwrt, u32 n_bands, u32 n_profiles); int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, - struct iwl_tas_config_cmd_v3 *cmd); + union iwl_tas_config_cmd *cmd, int fw_ver); __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt); @@ -294,7 +296,7 @@ static inline bool iwl_sar_geo_support(struct iwl_fw_runtime *fwrt) } static inline int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, - struct iwl_tas_config_cmd_v3 *cmd) + union iwl_tas_config_cmd *cmd, int fw_ver) { return -ENOENT; } diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h index 4949fcf85257..fc85ec426f43 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h @@ -419,6 +419,30 @@ struct iwl_tas_config_cmd_v3 { __le16 enable_tas_iec; } __packed; /* TAS_CONFIG_CMD_API_S_VER_3 */ +/** + * struct iwl_tas_config_cmd_v3 - configures the TAS + * @block_list_size: size of relevant field in block_list_array + * @block_list_array: list of countries where TAS must be disabled + * @override_tas_iec: indicates whether to override default value of IEC regulatory + * @enable_tas_iec: in case override_tas_iec is set - + * indicates whether IEC regulatory is enabled or disabled + * @usa_tas_uhb_allowed: if set, allow TAS UHB in the USA + * @reserved: reserved +*/ +struct iwl_tas_config_cmd_v4 { + __le32 block_list_size; + __le32 block_list_array[IWL_TAS_BLOCK_LIST_MAX]; + u8 override_tas_iec; + u8 enable_tas_iec; + u8 usa_tas_uhb_allowed; + u8 reserved; +} __packed; /* TAS_CONFIG_CMD_API_S_VER_4 */ + +union iwl_tas_config_cmd { + struct iwl_tas_config_cmd_v2 v2; + struct iwl_tas_config_cmd_v3 v3; + struct iwl_tas_config_cmd_v4 v4; +}; /** * enum iwl_lari_configs - bit masks for the various LARI config operations * @LARI_CONFIG_DISABLE_11AC_UKRAINE_MSK: disable 11ac in ukraine diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 6f4690e56a46..6a2a8ed1429a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -1206,10 +1206,10 @@ static bool iwl_mvm_add_to_tas_block_list(__le32 *list, __le32 *le_size, unsigne static void iwl_mvm_tas_init(struct iwl_mvm *mvm) { int ret; - struct iwl_tas_config_cmd_v3 cmd = {}; - int cmd_size; + union iwl_tas_config_cmd cmd = {}; + int cmd_size, fw_ver; - BUILD_BUG_ON(ARRAY_SIZE(cmd.block_list_array) < + BUILD_BUG_ON(ARRAY_SIZE(cmd.v3.block_list_array) < APCI_WTAS_BLACK_LIST_MAX); if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TAS_CFG)) { @@ -1217,7 +1217,10 @@ static void iwl_mvm_tas_init(struct iwl_mvm *mvm) return; } - ret = iwl_acpi_get_tas(&mvm->fwrt, &cmd); + fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, REGULATORY_AND_NVM_GROUP, + TAS_CONFIG, IWL_FW_CMD_VER_UNKNOWN); + + ret = iwl_acpi_get_tas(&mvm->fwrt, &cmd, fw_ver); if (ret < 0) { IWL_DEBUG_RADIO(mvm, "TAS table invalid or unavailable. (%d)\n", @@ -1232,19 +1235,20 @@ static void iwl_mvm_tas_init(struct iwl_mvm *mvm) IWL_DEBUG_RADIO(mvm, "System vendor '%s' is not in the approved list, disabling TAS in US and Canada.\n", dmi_get_system_info(DMI_SYS_VENDOR)); - if ((!iwl_mvm_add_to_tas_block_list(cmd.block_list_array, - &cmd.block_list_size, IWL_TAS_US_MCC)) || - (!iwl_mvm_add_to_tas_block_list(cmd.block_list_array, - &cmd.block_list_size, IWL_TAS_CANADA_MCC))) { + if ((!iwl_mvm_add_to_tas_block_list(cmd.v4.block_list_array, + &cmd.v4.block_list_size, + IWL_TAS_US_MCC)) || + (!iwl_mvm_add_to_tas_block_list(cmd.v4.block_list_array, + &cmd.v4.block_list_size, + IWL_TAS_CANADA_MCC))) { IWL_DEBUG_RADIO(mvm, "Unable to add US/Canada to TAS block list, disabling TAS\n"); return; } } - cmd_size = iwl_fw_lookup_cmd_ver(mvm->fw, REGULATORY_AND_NVM_GROUP, - TAS_CONFIG, - IWL_FW_CMD_VER_UNKNOWN) < 3 ? + /* v4 is the same size as v3, so no need to differentiate here */ + cmd_size = fw_ver < 3 ? sizeof(struct iwl_tas_config_cmd_v2) : sizeof(struct iwl_tas_config_cmd_v3);