From: Haim Dreyfuss <haim.dreyf...@intel.com> commit 0c3d7282233c7b02c74400b49981d6fff1d683a8 upstream.
South Korea is adding a more strict SAR limit called "Limb SAR". Currently, WGDS SAR offset group 3 is not used (not mapped to any country). In order to be able to comply with South Korea new restriction: - OEM will use WGDS SAR offset group 3 to South Korea limitation. - OEM will change WGDS revision to 1 (currently latest revision is 0) to notify that Korea Limb SAR applied. - Driver will read the WGDS table and pass the values to FW (as usual) - Driver will pass to FW an indication that Korea Limb SAR is applied in case table revision is 1. Signed-off-by: Haim Dreyfuss <haim.dreyf...@intel.com> Signed-off-by: Luca Coelho <luciano.coe...@intel.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 28 ++++++---- drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 5 +- .../net/wireless/intel/iwlwifi/fw/api/power.h | 12 ++++ drivers/net/wireless/intel/iwlwifi/fw/file.h | 3 + drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 55 ++++++++++++++----- drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 + 6 files changed, 76 insertions(+), 28 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index 405038ce98d68..7573af2d88ce7 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -97,7 +97,7 @@ IWL_EXPORT_SYMBOL(iwl_acpi_get_object); union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev, union acpi_object *data, - int data_size) + int data_size, int *tbl_rev) { int i; union acpi_object *wifi_pkg; @@ -113,16 +113,19 @@ union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev, /* * We need at least two packages, one for the revision and one * for the data itself. Also check that the revision is valid - * (i.e. it is an integer set to 0). + * (i.e. it is an integer smaller than 2, as we currently support only + * 2 revisions). */ if (data->type != ACPI_TYPE_PACKAGE || data->package.count < 2 || data->package.elements[0].type != ACPI_TYPE_INTEGER || - data->package.elements[0].integer.value != 0) { + data->package.elements[0].integer.value > 1) { IWL_DEBUG_DEV_RADIO(dev, "Unsupported packages structure\n"); return ERR_PTR(-EINVAL); } + *tbl_rev = data->package.elements[0].integer.value; + /* loop through all the packages to find the one for WiFi */ for (i = 1; i < data->package.count; i++) { union acpi_object *domain; @@ -151,14 +154,15 @@ int iwl_acpi_get_mcc(struct device *dev, char *mcc) { union acpi_object *wifi_pkg, *data; u32 mcc_val; - int ret; + int ret, tbl_rev; data = iwl_acpi_get_object(dev, ACPI_WRDD_METHOD); if (IS_ERR(data)) return PTR_ERR(data); - wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_WRDD_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg)) { + wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_WRDD_WIFI_DATA_SIZE, + &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev != 0) { ret = PTR_ERR(wifi_pkg); goto out_free; } @@ -185,6 +189,7 @@ u64 iwl_acpi_get_pwr_limit(struct device *dev) { union acpi_object *data, *wifi_pkg; u64 dflt_pwr_limit; + int tbl_rev; data = iwl_acpi_get_object(dev, ACPI_SPLC_METHOD); if (IS_ERR(data)) { @@ -193,8 +198,8 @@ u64 iwl_acpi_get_pwr_limit(struct device *dev) } wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, - ACPI_SPLC_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg) || + ACPI_SPLC_WIFI_DATA_SIZE, &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev != 0 || wifi_pkg->package.elements[1].integer.value != ACPI_TYPE_INTEGER) { dflt_pwr_limit = 0; goto out_free; @@ -211,14 +216,15 @@ IWL_EXPORT_SYMBOL(iwl_acpi_get_pwr_limit); int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk) { union acpi_object *wifi_pkg, *data; - int ret; + int ret, tbl_rev; data = iwl_acpi_get_object(dev, ACPI_ECKV_METHOD); if (IS_ERR(data)) return PTR_ERR(data); - wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_ECKV_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg)) { + wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_ECKV_WIFI_DATA_SIZE, + &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev != 0) { ret = PTR_ERR(wifi_pkg); goto out_free; } diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h index f5704e16643fc..991a234509994 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h @@ -97,7 +97,7 @@ void *iwl_acpi_get_object(struct device *dev, acpi_string method); union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev, union acpi_object *data, - int data_size); + int data_size, int *tbl_rev); /** * iwl_acpi_get_mcc - read MCC from ACPI, if available @@ -131,7 +131,8 @@ static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method) static inline union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev, union acpi_object *data, - int data_size) + int data_size, + int *tbl_rev) { return ERR_PTR(-ENOENT); } diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h index 01f003c6cff9f..f195db398bedb 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h @@ -419,14 +419,26 @@ struct iwl_per_chain_offset_group { struct iwl_per_chain_offset hb; } __packed; /* PER_CHAIN_LIMIT_OFFSET_GROUP_S_VER_1 */ +/** + * struct iwl_geo_tx_power_profile_cmd_v1 - struct for GEO_TX_POWER_LIMIT cmd. + * @ops: operations, value from &enum iwl_geo_per_chain_offset_operation + * @table: offset profile per band. + */ +struct iwl_geo_tx_power_profiles_cmd_v1 { + __le32 ops; + struct iwl_per_chain_offset_group table[IWL_NUM_GEO_PROFILES]; +} __packed; /* GEO_TX_POWER_LIMIT_VER_1 */ + /** * struct iwl_geo_tx_power_profile_cmd - struct for GEO_TX_POWER_LIMIT cmd. * @ops: operations, value from &enum iwl_geo_per_chain_offset_operation * @table: offset profile per band. + * @table_revision: BIOS table revision. */ struct iwl_geo_tx_power_profiles_cmd { __le32 ops; struct iwl_per_chain_offset_group table[IWL_NUM_GEO_PROFILES]; + __le32 table_revision; } __packed; /* GEO_TX_POWER_LIMIT */ /** diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h index de9243d301352..a74f34a8dffb0 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/file.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h @@ -286,6 +286,8 @@ typedef unsigned int __bitwise iwl_ucode_tlv_api_t; * SCAN_OFFLOAD_PROFILES_QUERY_RSP_S. * @IWL_UCODE_TLV_API_MBSSID_HE: This ucode supports v2 of * STA_CONTEXT_DOT11AX_API_S + * @IWL_UCODE_TLV_CAPA_SAR_TABLE_VER: This ucode supports different sar + * version tables. * * @NUM_IWL_UCODE_TLV_API: number of bits used */ @@ -318,6 +320,7 @@ enum iwl_ucode_tlv_api { IWL_UCODE_TLV_API_MBSSID_HE = (__force iwl_ucode_tlv_api_t)52, IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE = (__force iwl_ucode_tlv_api_t)53, IWL_UCODE_TLV_API_FTM_RTT_ACCURACY = (__force iwl_ucode_tlv_api_t)54, + IWL_UCODE_TLV_API_SAR_TABLE_VER = (__force iwl_ucode_tlv_api_t)55, NUM_IWL_UCODE_TLV_API #ifdef __CHECKER__ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 5af9959d05e52..8892707050d5a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -682,15 +682,15 @@ static int iwl_mvm_sar_get_wrds_table(struct iwl_mvm *mvm) { union acpi_object *wifi_pkg, *table, *data; bool enabled; - int ret; + int ret, tbl_rev; data = iwl_acpi_get_object(mvm->dev, ACPI_WRDS_METHOD); if (IS_ERR(data)) return PTR_ERR(data); wifi_pkg = iwl_acpi_get_wifi_pkg(mvm->dev, data, - ACPI_WRDS_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg)) { + ACPI_WRDS_WIFI_DATA_SIZE, &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev != 0) { ret = PTR_ERR(wifi_pkg); goto out_free; } @@ -719,15 +719,15 @@ static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm) { union acpi_object *wifi_pkg, *data; bool enabled; - int i, n_profiles, ret; + int i, n_profiles, ret, tbl_rev; data = iwl_acpi_get_object(mvm->dev, ACPI_EWRD_METHOD); if (IS_ERR(data)) return PTR_ERR(data); wifi_pkg = iwl_acpi_get_wifi_pkg(mvm->dev, data, - ACPI_EWRD_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg)) { + ACPI_EWRD_WIFI_DATA_SIZE, &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev != 0) { ret = PTR_ERR(wifi_pkg); goto out_free; } @@ -778,7 +778,7 @@ static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm) static int iwl_mvm_sar_get_wgds_table(struct iwl_mvm *mvm) { union acpi_object *wifi_pkg, *data; - int i, j, ret; + int i, j, ret, tbl_rev; int idx = 1; data = iwl_acpi_get_object(mvm->dev, ACPI_WGDS_METHOD); @@ -786,12 +786,13 @@ static int iwl_mvm_sar_get_wgds_table(struct iwl_mvm *mvm) return PTR_ERR(data); wifi_pkg = iwl_acpi_get_wifi_pkg(mvm->dev, data, - ACPI_WGDS_WIFI_DATA_SIZE); - if (IS_ERR(wifi_pkg)) { + ACPI_WGDS_WIFI_DATA_SIZE, &tbl_rev); + if (IS_ERR(wifi_pkg) || tbl_rev > 1) { ret = PTR_ERR(wifi_pkg); goto out_free; } + mvm->geo_rev = tbl_rev; for (i = 0; i < ACPI_NUM_GEO_PROFILES; i++) { for (j = 0; j < ACPI_GEO_TABLE_SIZE; j++) { union acpi_object *entry; @@ -894,15 +895,29 @@ int iwl_mvm_get_sar_geo_profile(struct iwl_mvm *mvm) { struct iwl_geo_tx_power_profiles_resp *resp; int ret; + u16 len; + void *data; + struct iwl_geo_tx_power_profiles_cmd geo_cmd; + struct iwl_geo_tx_power_profiles_cmd_v1 geo_cmd_v1; + struct iwl_host_cmd cmd; + + if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_SAR_TABLE_VER)) { + geo_cmd.ops = + cpu_to_le32(IWL_PER_CHAIN_OFFSET_GET_CURRENT_TABLE); + len = sizeof(geo_cmd); + data = &geo_cmd; + } else { + geo_cmd_v1.ops = + cpu_to_le32(IWL_PER_CHAIN_OFFSET_GET_CURRENT_TABLE); + len = sizeof(geo_cmd_v1); + data = &geo_cmd_v1; + } - struct iwl_geo_tx_power_profiles_cmd geo_cmd = { - .ops = cpu_to_le32(IWL_PER_CHAIN_OFFSET_GET_CURRENT_TABLE), - }; - struct iwl_host_cmd cmd = { + cmd = (struct iwl_host_cmd){ .id = WIDE_ID(PHY_OPS_GROUP, GEO_TX_POWER_LIMIT), - .len = { sizeof(geo_cmd), }, + .len = { len, }, .flags = CMD_WANT_SKB, - .data = { &geo_cmd }, + .data = { data }, }; if (!iwl_mvm_sar_geo_support(mvm)) @@ -969,6 +984,16 @@ static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm) i, j, value[1], value[2], value[0]); } } + + cmd.table_revision = cpu_to_le32(mvm->geo_rev); + + if (!fw_has_api(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_API_SAR_TABLE_VER)) { + return iwl_mvm_send_cmd_pdu(mvm, cmd_wide_id, 0, + sizeof(struct iwl_geo_tx_power_profiles_cmd_v1), + &cmd); + } + return iwl_mvm_send_cmd_pdu(mvm, cmd_wide_id, 0, sizeof(cmd), &cmd); } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 88af1f0ba3f0f..ed8fc9a9204ca 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1184,6 +1184,7 @@ struct iwl_mvm { #ifdef CONFIG_ACPI struct iwl_mvm_sar_profile sar_profiles[ACPI_SAR_PROFILE_NUM]; struct iwl_mvm_geo_profile geo_profiles[ACPI_NUM_GEO_PROFILES]; + u32 geo_rev; #endif }; -- 2.20.1