diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/acpi.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 284 |
1 files changed, 258 insertions, 26 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index bf431fa4fe81..e6d64152c81a 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -1,9 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2017 Intel Deutschland GmbH - * Copyright (C) 2019-2021 Intel Corporation + * Copyright (C) 2019-2022 Intel Corporation */ #include <linux/uuid.h> +#include <linux/dmi.h> #include "iwl-drv.h" #include "iwl-debug.h" #include "acpi.h" @@ -19,6 +20,30 @@ const guid_t iwl_rfi_guid = GUID_INIT(0x7266172C, 0x220B, 0x4B29, 0xDD, 0x26, 0xB5, 0xFD); IWL_EXPORT_SYMBOL(iwl_rfi_guid); +static const struct dmi_system_id dmi_ppag_approved_list[] = { + { .ident = "HP", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + }, + }, + { .ident = "SAMSUNG", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"), + }, + }, + { .ident = "MSFT", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"), + }, + }, + { .ident = "ASUS", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek COMPUTER INC."), + }, + }, + {} +}; + static int iwl_acpi_get_handle(struct device *dev, acpi_string method, acpi_handle *ret_handle) { @@ -242,17 +267,16 @@ found: IWL_EXPORT_SYMBOL(iwl_acpi_get_wifi_pkg_range); int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, - __le32 *block_list_array, - int *block_list_size) + union iwl_tas_config_cmd *cmd, int fw_ver) { union acpi_object *wifi_pkg, *data; - int ret, tbl_rev, i; - bool enabled; + int ret, tbl_rev, i, block_list_size, enabled; data = iwl_acpi_get_object(fwrt->dev, ACPI_WTAS_METHOD); if (IS_ERR(data)) return PTR_ERR(data); + /* try to read wtas table revision 1 or revision 0*/ wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data, ACPI_WTAS_WIFI_DATA_SIZE, &tbl_rev); @@ -261,40 +285,62 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, goto out_free; } - if (wifi_pkg->package.elements[0].type != ACPI_TYPE_INTEGER || - tbl_rev != 0) { + if (tbl_rev == 1 && wifi_pkg->package.elements[1].type == + ACPI_TYPE_INTEGER) { + u32 tas_selection = + (u32)wifi_pkg->package.elements[1].integer.value; + u16 override_iec = + (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; + 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) { + enabled = !!wifi_pkg->package.elements[1].integer.value; + } else { ret = -EINVAL; goto out_free; } - enabled = !!wifi_pkg->package.elements[1].integer.value; - if (!enabled) { - *block_list_size = -1; IWL_DEBUG_RADIO(fwrt, "TAS not enabled\n"); ret = 0; goto out_free; } + IWL_DEBUG_RADIO(fwrt, "Reading TAS table revision %d\n", tbl_rev); if (wifi_pkg->package.elements[2].type != ACPI_TYPE_INTEGER || wifi_pkg->package.elements[2].integer.value > APCI_WTAS_BLACK_LIST_MAX) { IWL_DEBUG_RADIO(fwrt, "TAS invalid array size %llu\n", - wifi_pkg->package.elements[1].integer.value); + wifi_pkg->package.elements[2].integer.value); ret = -EINVAL; goto out_free; } - *block_list_size = wifi_pkg->package.elements[2].integer.value; + block_list_size = wifi_pkg->package.elements[2].integer.value; + cmd->v4.block_list_size = cpu_to_le32(block_list_size); - IWL_DEBUG_RADIO(fwrt, "TAS array size %d\n", *block_list_size); - if (*block_list_size > APCI_WTAS_BLACK_LIST_MAX) { + IWL_DEBUG_RADIO(fwrt, "TAS array size %u\n", block_list_size); + if (block_list_size > APCI_WTAS_BLACK_LIST_MAX) { IWL_DEBUG_RADIO(fwrt, "TAS invalid array size value %u\n", - *block_list_size); + block_list_size); ret = -EINVAL; goto out_free; } - for (i = 0; i < *block_list_size; i++) { + for (i = 0; i < block_list_size; i++) { u32 country; if (wifi_pkg->package.elements[3 + i].type != @@ -306,11 +352,11 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt, } country = wifi_pkg->package.elements[3 + i].integer.value; - 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); } - ret = 0; + ret = 1; out_free: kfree(data); return ret; @@ -516,8 +562,8 @@ IWL_EXPORT_SYMBOL(iwl_sar_select_profile); int iwl_sar_get_wrds_table(struct iwl_fw_runtime *fwrt) { union acpi_object *wifi_pkg, *table, *data; - bool enabled; int ret, tbl_rev; + u32 flags; u8 num_chains, num_sub_bands; data = iwl_acpi_get_object(fwrt->dev, ACPI_WRDS_METHOD); @@ -583,7 +629,8 @@ read_table: IWL_DEBUG_RADIO(fwrt, "Reading WRDS tbl_rev=%d\n", tbl_rev); - enabled = !!(wifi_pkg->package.elements[1].integer.value); + flags = wifi_pkg->package.elements[1].integer.value; + fwrt->reduced_power_flags = flags >> IWL_REDUCE_POWER_FLAGS_POS; /* position of the actual table */ table = &wifi_pkg->package.elements[2]; @@ -591,7 +638,8 @@ read_table: /* The profile from WRDS is officially profile 1, but goes * into sar_profiles[0] (because we don't have a profile 0). */ - ret = iwl_sar_set_profile(table, &fwrt->sar_profiles[0], enabled, + ret = iwl_sar_set_profile(table, &fwrt->sar_profiles[0], + flags & IWL_SAR_ENABLE_MSK, num_chains, num_sub_bands); out_free: kfree(data); @@ -789,7 +837,7 @@ int iwl_sar_get_wgds_table(struct iwl_fw_runtime *fwrt) * looking up in ACPI */ if (wifi_pkg->package.count != - min_size + profile_size * num_profiles) { + hdr_size + profile_size * num_profiles) { ret = -EINVAL; goto out_free; } @@ -852,6 +900,8 @@ read_table: } } + fwrt->geo_num_profiles = num_profiles; + fwrt->geo_enabled = true; ret = 0; out_free: kfree(data); @@ -873,10 +923,11 @@ bool iwl_sar_geo_support(struct iwl_fw_runtime *fwrt) * only one using version 36, so skip this version entirely. */ return IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) >= 38 || - IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 17 || - (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 29 && - ((fwrt->trans->hw_rev & CSR_HW_REV_TYPE_MSK) == - CSR_HW_REV_TYPE_7265D)); + (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 17 && + fwrt->trans->hw_rev != CSR_HW_REV_TYPE_3160) || + (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 29 && + ((fwrt->trans->hw_rev & CSR_HW_REV_TYPE_MSK) == + CSR_HW_REV_TYPE_7265D)); } IWL_EXPORT_SYMBOL(iwl_sar_geo_support); @@ -886,6 +937,9 @@ int iwl_sar_geo_init(struct iwl_fw_runtime *fwrt, { int i, j; + if (!fwrt->geo_enabled) + return -ENODATA; + if (!iwl_sar_geo_support(fwrt)) return -EOPNOTSUPP; @@ -946,3 +1000,181 @@ __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt) return config_bitmap; } IWL_EXPORT_SYMBOL(iwl_acpi_get_lari_config_bitmap); + +int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt) +{ + union acpi_object *wifi_pkg, *data, *flags; + int i, j, ret, tbl_rev, num_sub_bands = 0; + int idx = 2; + + fwrt->ppag_flags = 0; + + data = iwl_acpi_get_object(fwrt->dev, ACPI_PPAG_METHOD); + if (IS_ERR(data)) + return PTR_ERR(data); + + /* try to read ppag table rev 2 or 1 (both have the same data size) */ + wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data, + ACPI_PPAG_WIFI_DATA_SIZE_V2, &tbl_rev); + + if (!IS_ERR(wifi_pkg)) { + if (tbl_rev == 1 || tbl_rev == 2) { + num_sub_bands = IWL_NUM_SUB_BANDS_V2; + IWL_DEBUG_RADIO(fwrt, + "Reading PPAG table v2 (tbl_rev=%d)\n", + tbl_rev); + goto read_table; + } else { + ret = -EINVAL; + goto out_free; + } + } + + /* try to read ppag table revision 0 */ + wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data, + ACPI_PPAG_WIFI_DATA_SIZE_V1, &tbl_rev); + + if (!IS_ERR(wifi_pkg)) { + if (tbl_rev != 0) { + ret = -EINVAL; + goto out_free; + } + num_sub_bands = IWL_NUM_SUB_BANDS_V1; + IWL_DEBUG_RADIO(fwrt, "Reading PPAG table v1 (tbl_rev=0)\n"); + goto read_table; + } + +read_table: + fwrt->ppag_ver = tbl_rev; + flags = &wifi_pkg->package.elements[1]; + + if (flags->type != ACPI_TYPE_INTEGER) { + ret = -EINVAL; + goto out_free; + } + + fwrt->ppag_flags = flags->integer.value & ACPI_PPAG_MASK; + + if (!fwrt->ppag_flags) { + ret = 0; + goto out_free; + } + + /* + * read, verify gain values and save them into the PPAG table. + * first sub-band (j=0) corresponds to Low-Band (2.4GHz), and the + * following sub-bands to High-Band (5GHz). + */ + for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) { + for (j = 0; j < num_sub_bands; j++) { + union acpi_object *ent; + + ent = &wifi_pkg->package.elements[idx++]; + if (ent->type != ACPI_TYPE_INTEGER) { + ret = -EINVAL; + goto out_free; + } + + fwrt->ppag_chains[i].subbands[j] = ent->integer.value; + + if ((j == 0 && + (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_LB || + fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_LB)) || + (j != 0 && + (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_HB || + fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_HB))) { + fwrt->ppag_flags = 0; + ret = -EINVAL; + goto out_free; + } + } + } + + + ret = 0; + +out_free: + kfree(data); + return ret; +} +IWL_EXPORT_SYMBOL(iwl_acpi_get_ppag_table); + +int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd, + int *cmd_size) +{ + u8 cmd_ver; + int i, j, num_sub_bands; + s8 *gain; + + if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) { + IWL_DEBUG_RADIO(fwrt, + "PPAG capability not supported by FW, command not sent.\n"); + return -EINVAL; + } + if (!fwrt->ppag_flags) { + IWL_DEBUG_RADIO(fwrt, "PPAG not enabled, command not sent.\n"); + return -EINVAL; + } + + /* The 'flags' field is the same in v1 and in v2 so we can just + * use v1 to access it. + */ + cmd->v1.flags = cpu_to_le32(fwrt->ppag_flags); + cmd_ver = iwl_fw_lookup_cmd_ver(fwrt->fw, + WIDE_ID(PHY_OPS_GROUP, PER_PLATFORM_ANT_GAIN_CMD), + IWL_FW_CMD_VER_UNKNOWN); + if (cmd_ver == 1) { + num_sub_bands = IWL_NUM_SUB_BANDS_V1; + gain = cmd->v1.gain[0]; + *cmd_size = sizeof(cmd->v1); + if (fwrt->ppag_ver == 1 || fwrt->ppag_ver == 2) { + IWL_DEBUG_RADIO(fwrt, + "PPAG table rev is %d but FW supports v1, sending truncated table\n", + fwrt->ppag_ver); + cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK); + } + } else if (cmd_ver == 2 || cmd_ver == 3) { + num_sub_bands = IWL_NUM_SUB_BANDS_V2; + gain = cmd->v2.gain[0]; + *cmd_size = sizeof(cmd->v2); + if (fwrt->ppag_ver == 0) { + IWL_DEBUG_RADIO(fwrt, + "PPAG table is v1 but FW supports v2, sending padded table\n"); + } else if (cmd_ver == 2 && fwrt->ppag_ver == 2) { + IWL_DEBUG_RADIO(fwrt, + "PPAG table is v3 but FW supports v2, sending partial bitmap.\n"); + cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK); + } + } else { + IWL_DEBUG_RADIO(fwrt, "Unsupported PPAG command version\n"); + return -EINVAL; + } + + for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) { + for (j = 0; j < num_sub_bands; j++) { + gain[i * num_sub_bands + j] = + fwrt->ppag_chains[i].subbands[j]; + IWL_DEBUG_RADIO(fwrt, + "PPAG table: chain[%d] band[%d]: gain = %d\n", + i, j, gain[i * num_sub_bands + j]); + } + } + + return 0; +} +IWL_EXPORT_SYMBOL(iwl_read_ppag_table); + +bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt) +{ + + if (!dmi_check_system(dmi_ppag_approved_list)) { + IWL_DEBUG_RADIO(fwrt, + "System vendor '%s' is not in the approved list, disabling PPAG.\n", + dmi_get_system_info(DMI_SYS_VENDOR)); + fwrt->ppag_flags = 0; + return false; + } + + return true; +} +IWL_EXPORT_SYMBOL(iwl_acpi_is_ppag_approved); |