| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi_device.h> |
| #include <acpi/acpigen.h> |
| #include <acpi/acpigen_pci.h> |
| #include <console/console.h> |
| #include <device/pci_ids.h> |
| #include <sar.h> |
| #include <stdlib.h> |
| #include <wrdd.h> |
| |
| #include "chip.h" |
| #include "wifi.h" |
| #include "wifi_private.h" |
| |
| /* WIFI Domain type */ |
| #define DOMAIN_TYPE_WIFI 0x7 |
| |
| /* Maximum number DSM UUID bifurcations in _DSM */ |
| #define MAX_DSM_FUNCS 2 |
| |
| /* |
| * WIFI ACPI NAME = "WF" + hex value of last 8 bits of dev_path_encode + '\0' |
| * The above representation returns unique and consistent name every time |
| * generate_wifi_acpi_name is invoked. The last 8 bits of dev_path_encode is |
| * chosen since it contains the bus address of the device. |
| */ |
| #define WIFI_ACPI_NAME_MAX_LEN 5 |
| |
| /* Unique ID for the WIFI _DSM */ |
| #define ACPI_DSM_OEM_WIFI_UUID "F21202BF-8F78-4DC6-A5B3-1F738E285ADE" |
| |
| /* Unique ID for CnviDdrRfim entry in WIFI _DSM */ |
| #define ACPI_DSM_RFIM_WIFI_UUID "7266172C-220B-4B29-814F-75E4DD26B5FD" |
| |
| __weak int get_wifi_sar_limits(union wifi_sar_limits *sar_limits) |
| { |
| return -1; |
| } |
| |
| /* |
| * Function 1: Allow PC OEMs to set ETSI 5.8GHz SRD in Passive/Disabled ESTI SRD |
| * Channels: 149, 153, 157, 161, 165 |
| * 0 - ETSI 5.8GHz SRD active scan |
| * 1 - ETSI 5.8GHz SRD passive scan |
| * 2 - ETSI 5.8GHz SRD disabled |
| */ |
| static void wifi_dsm_srd_active_channels(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->disable_active_sdr_channels); |
| } |
| |
| /* |
| * Function 2 : Supported Indonesia 5.15-5.35 GHz Band |
| * 0 - Set 5.115-5.35GHz to Disable in Indonesia |
| * 1 - Set 5.115-5.35GHz to Enable (Passive) in Indonesia |
| * 2 - Reserved |
| */ |
| static void wifi_dsm_indonasia_5Ghz_band_enable(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->support_indonesia_5g_band); |
| } |
| |
| /* |
| * Function 3: Support Wi-Fi 6 11ax Rev 2 new channels on 6-7 GHz. |
| * Bit 0: |
| * 0 - No override; use device settings 0 |
| * 1 - Force disable all countries that are not defined in the following bits |
| * |
| * Bit 1: |
| * 0 No override; USA 6GHz disable 0 |
| * 1 6GHz allowed in the USA (enabled only if the device is certified to the USA) |
| */ |
| static void wifi_dsm_supported_ultra_high_band(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->support_ultra_high_band); |
| } |
| |
| /* |
| * Function 4: Regulatory Special Configurations Enablements |
| */ |
| static void wifi_dsm_regulatory_configurations(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->regulatory_configurations); |
| } |
| |
| /* |
| * Function 5: M.2 UART Interface Configuration |
| */ |
| static void wifi_dsm_uart_configurations(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->uart_configurations); |
| } |
| |
| /* |
| * Function 6: Control Enablement 11ax on certificated modules |
| * Bit 0 - Apply changes to country Ukraine. 11Ax Setting within module certification |
| * 0 - None. Work with Wi-Fi FW/OTP definitions [Default] |
| * 1 - Apply changes. |
| * |
| * Bit 1 - 11Ax Mode. Effective only if Bit 0 set to 1 |
| * 0 - Disable 11Ax on country Ukraine [Default] |
| * 1 - Enable 11Ax on country Ukraine |
| * |
| * Bit 2 - Apply changes to country Russia. 11Ax Setting within module certification |
| * 0 - None. Work with Wi-Fi FW/OTP definitions [Default] |
| * 1 - Apply changes. |
| * |
| * Bit 3 - 11Ax Mode. Effective only if Bit 2 set to 1 |
| * 0 - Disable 11Ax on country Russia [Default] |
| * 1 - Enable 11Ax on country Russia |
| * |
| * Bit 31:04 - Reserved |
| * |
| * Note: Assumed Russia Work with Wi-Fi FW/OTP definitions |
| */ |
| static void wifi_dsm_ukrane_russia_11ax_enable(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->enablement_11ax); |
| } |
| |
| /* |
| * Function 7: Control Enablement UNII-4 over certificate modules |
| */ |
| static void wifi_dsm_unii4_control_enable(void *args) |
| { |
| struct dsm_profile *dsm_config = (struct dsm_profile *)args; |
| |
| acpigen_write_return_integer(dsm_config->unii_4); |
| } |
| |
| static void wifi_dsm_ddrrfim_func3_cb(void *ptr) |
| { |
| const bool is_cnvi_ddr_rfim_enabled = *(bool *)ptr; |
| acpigen_write_return_integer(is_cnvi_ddr_rfim_enabled ? 1 : 0); |
| } |
| |
| static void (*wifi_dsm_callbacks[])(void *) = { |
| NULL, /* Function 0 */ |
| wifi_dsm_srd_active_channels, /* Function 1 */ |
| wifi_dsm_indonasia_5Ghz_band_enable, /* Function 2 */ |
| wifi_dsm_supported_ultra_high_band, /* Function 3 */ |
| wifi_dsm_regulatory_configurations, /* Function 4 */ |
| wifi_dsm_uart_configurations, /* Function 5 */ |
| wifi_dsm_ukrane_russia_11ax_enable, /* Function 6 */ |
| wifi_dsm_unii4_control_enable, /* Function 7 */ |
| }; |
| |
| /* |
| * The current DSM2 table is only exporting one function (function 3), some more |
| * functions are reserved so marking them NULL. |
| */ |
| static void (*wifi_dsm2_callbacks[])(void *) = { |
| NULL, /* Function 0 */ |
| NULL, /* Function 1 */ |
| NULL, /* Function 2 */ |
| wifi_dsm_ddrrfim_func3_cb, /* Function 3 */ |
| }; |
| |
| static const uint8_t *sar_fetch_set(const struct sar_profile *sar, size_t set_num) |
| { |
| const uint8_t *sar_table = &sar->sar_table[0]; |
| |
| return sar_table + (sar->chains_count * sar->subbands_count * set_num); |
| } |
| |
| static const uint8_t *wgds_fetch_set(struct geo_profile *wgds, size_t set_num) |
| { |
| const uint8_t *wgds_table = &wgds->wgds_table[0]; |
| |
| return wgds_table + (wgds->bands_count * set_num); |
| } |
| |
| static const uint8_t *ppag_fetch_set(struct gain_profile *ppag, size_t set_num) |
| { |
| const uint8_t *ppag_table = &ppag->ppag_table[0]; |
| |
| return ppag_table + (ppag->bands_count * set_num); |
| } |
| |
| static void sar_emit_wrds(const struct sar_profile *sar) |
| { |
| int i; |
| size_t package_size, table_size; |
| const uint8_t *set; |
| |
| if (sar == NULL) |
| return; |
| |
| /* |
| * Name ("WRDS", Package () { |
| * Revision, |
| * Package () { |
| * Domain Type, // 0x7:WiFi |
| * WiFi SAR BIOS, // BIOS SAR Enable/disable |
| * SAR Table Set // Set#1 of SAR Table |
| * } |
| * }) |
| */ |
| if (sar->revision > MAX_SAR_REVISION) { |
| printk(BIOS_ERR, "Invalid SAR table revision: %d\n", sar->revision); |
| return; |
| } |
| |
| acpigen_write_name("WRDS"); |
| acpigen_write_package(2); |
| acpigen_write_dword(sar->revision); |
| |
| table_size = sar->chains_count * sar->subbands_count; |
| /* Emit 'Domain Type' + 'WiFi SAR Enable' + Set#1 */ |
| package_size = 1 + 1 + table_size; |
| acpigen_write_package(package_size); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| acpigen_write_dword(1); |
| |
| set = sar_fetch_set(sar, 0); |
| for (i = 0; i < table_size; i++) |
| acpigen_write_byte(set[i]); |
| |
| acpigen_write_package_end(); |
| acpigen_write_package_end(); |
| } |
| |
| static void sar_emit_ewrd(const struct sar_profile *sar) |
| { |
| int i; |
| size_t package_size, set_num, table_size; |
| const uint8_t *set; |
| |
| if (sar == NULL) |
| return; |
| |
| /* |
| * Name ("EWRD", Package () { |
| * Revision, |
| * Package () { |
| * Domain Type, // 0x7:WiFi |
| * Dynamic SAR Enable, // Dynamic SAR Enable/disable |
| * Extended SAR sets, // Number of optional SAR table sets |
| * SAR Table Set, // Set#2 of SAR Table |
| * SAR Table Set, // Set#3 of SAR Table |
| * SAR Table Set // Set#4 of SAR Table |
| * } |
| * }) |
| */ |
| if (sar->revision > MAX_SAR_REVISION) { |
| printk(BIOS_ERR, "Invalid SAR table revision: %d\n", sar->revision); |
| return; |
| } |
| |
| if (sar->dsar_set_count == 0) { |
| printk(BIOS_WARNING, "DSAR set count is 0\n"); |
| return; |
| } |
| |
| acpigen_write_name("EWRD"); |
| acpigen_write_package(2); |
| acpigen_write_dword(sar->revision); |
| |
| table_size = sar->chains_count * sar->subbands_count; |
| /* |
| * Emit 'Domain Type' + 'Dynamic SAR Enable' + 'Extended SAR sets count' |
| * + number of bytes for Set#2 & 3 & 4 |
| */ |
| package_size = 1 + 1 + 1 + table_size * MAX_DSAR_SET_COUNT; |
| acpigen_write_package(package_size); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| acpigen_write_dword(1); |
| acpigen_write_dword(sar->dsar_set_count); |
| |
| for (set_num = 1; set_num <= sar->dsar_set_count; set_num++) { |
| set = sar_fetch_set(sar, set_num); |
| for (i = 0; i < table_size; i++) |
| acpigen_write_byte(set[i]); |
| } |
| |
| /* wifi driver always expects 3 DSAR sets */ |
| for (i = 0; i < (table_size * (MAX_DSAR_SET_COUNT - sar->dsar_set_count)); i++) |
| acpigen_write_byte(0); |
| |
| acpigen_write_package_end(); |
| acpigen_write_package_end(); |
| } |
| |
| static void sar_emit_wgds(struct geo_profile *wgds) |
| { |
| int i; |
| size_t package_size, set_num; |
| const uint8_t *set; |
| |
| if (wgds == NULL) |
| return; |
| |
| /* |
| * Name ("WGDS", Package() { |
| * Revision, |
| * Package() { |
| * DomainType, // 0x7:WiFi |
| * WgdsWiFiSarDeltaGroup1PowerMax1, // Group 1 FCC 2400 Max |
| * WgdsWiFiSarDeltaGroup1PowerChainA1, // Group 1 FCC 2400 A Offset |
| * WgdsWiFiSarDeltaGroup1PowerChainB1, // Group 1 FCC 2400 B Offset |
| * WgdsWiFiSarDeltaGroup1PowerMax2, // Group 1 FCC 5200 Max |
| * WgdsWiFiSarDeltaGroup1PowerChainA2, // Group 1 FCC 5200 A Offset |
| * WgdsWiFiSarDeltaGroup1PowerChainB2, // Group 1 FCC 5200 B Offset |
| * WgdsWiFiSarDeltaGroup1PowerMax3, // Group 1 FCC 6000-7000 Max |
| * WgdsWiFiSarDeltaGroup1PowerChainA3, // Group 1 FCC 6000-7000 A Offset |
| * WgdsWiFiSarDeltaGroup1PowerChainB3, // Group 1 FCC 6000-7000 B Offset |
| * WgdsWiFiSarDeltaGroup2PowerMax1, // Group 2 EC Jap 2400 Max |
| * WgdsWiFiSarDeltaGroup2PowerChainA1, // Group 2 EC Jap 2400 A Offset |
| * WgdsWiFiSarDeltaGroup2PowerChainB1, // Group 2 EC Jap 2400 B Offset |
| * WgdsWiFiSarDeltaGroup2PowerMax2, // Group 2 EC Jap 5200 Max |
| * WgdsWiFiSarDeltaGroup2PowerChainA2, // Group 2 EC Jap 5200 A Offset |
| * WgdsWiFiSarDeltaGroup2PowerChainB2, // Group 2 EC Jap 5200 B Offset |
| * WgdsWiFiSarDeltaGroup2PowerMax3, // Group 2 EC Jap 6000-7000 Max |
| * WgdsWiFiSarDeltaGroup2PowerChainA3, // Group 2 EC Jap 6000-7000 A Offset |
| * WgdsWiFiSarDeltaGroup2PowerChainB3, // Group 2 EC Jap 6000-7000 B Offset |
| * WgdsWiFiSarDeltaGroup3PowerMax1, // Group 3 ROW 2400 Max |
| * WgdsWiFiSarDeltaGroup3PowerChainA1, // Group 3 ROW 2400 A Offset |
| * WgdsWiFiSarDeltaGroup3PowerChainB1, // Group 3 ROW 2400 B Offset |
| * WgdsWiFiSarDeltaGroup3PowerMax2, // Group 3 ROW 5200 Max |
| * WgdsWiFiSarDeltaGroup3PowerChainA2, // Group 3 ROW 5200 A Offset |
| * WgdsWiFiSarDeltaGroup3PowerChainB2, // Group 3 ROW 5200 B Offset |
| * WgdsWiFiSarDeltaGroup3PowerMax3, // Group 3 ROW 6000-7000 Max |
| * WgdsWiFiSarDeltaGroup3PowerChainA3, // Group 3 ROW 6000-7000 A Offset |
| * WgdsWiFiSarDeltaGroup3PowerChainB3, // Group 3 ROW 6000-7000 B Offset |
| * } |
| * }) |
| */ |
| if (wgds->revision > MAX_GEO_OFFSET_REVISION) { |
| printk(BIOS_ERR, "Invalid WGDS revision: %d\n", wgds->revision); |
| return; |
| } |
| |
| package_size = 1 + wgds->chains_count * wgds->bands_count; |
| |
| acpigen_write_name("WGDS"); |
| acpigen_write_package(2); |
| acpigen_write_dword(wgds->revision); |
| /* Emit 'Domain Type' + |
| * Group specific delta of power (6 bytes * NUM_WGDS_SAR_GROUPS) |
| */ |
| acpigen_write_package(package_size); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| |
| for (set_num = 0; set_num < wgds->chains_count; set_num++) { |
| set = wgds_fetch_set(wgds, set_num); |
| for (i = 0; i < wgds->bands_count; i++) |
| acpigen_write_byte(set[i]); |
| } |
| |
| acpigen_write_package_end(); |
| acpigen_write_package_end(); |
| } |
| |
| static void sar_emit_ppag(struct gain_profile *ppag) |
| { |
| int i; |
| size_t package_size, set_num; |
| const uint8_t *set; |
| |
| if (ppag == NULL) |
| return; |
| |
| /* |
| * Name ("PPAG", Package () { |
| * Revision, |
| * Package () { |
| * Domain Type, // 0x7:WiFi |
| * PPAG Mode, // Defines the mode of ANT_gain control to be used |
| * ANT_gain Table Chain A // Defines the ANT_gain in dBi for chain A |
| * ANT_gain Table Chain B // Defines the ANT_gain in dBi for chain B |
| * } |
| * }) |
| */ |
| if (ppag->revision > MAX_ANT_GAINS_REVISION) { |
| printk(BIOS_ERR, "Invalid PPAG revision: %d\n", ppag->revision); |
| return; |
| } |
| |
| package_size = 1 + 1 + ppag->chains_count * ppag->bands_count; |
| |
| acpigen_write_name("PPAG"); |
| acpigen_write_package(2); |
| acpigen_write_dword(ppag->revision); |
| acpigen_write_package(package_size); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| acpigen_write_dword(ppag->mode); |
| |
| for (set_num = 0; set_num < ppag->chains_count; set_num++) { |
| set = ppag_fetch_set(ppag, set_num); |
| for (i = 0; i < ppag->bands_count; i++) |
| acpigen_write_byte(set[i]); |
| } |
| |
| acpigen_write_package_end(); |
| acpigen_write_package_end(); |
| } |
| |
| static void sar_emit_wtas(struct avg_profile *wtas) |
| { |
| int i; |
| size_t package_size; |
| |
| if (wtas == NULL) |
| return; |
| |
| /* |
| * Name (WTAS, Package() { |
| * { |
| * Revision, |
| * Package() |
| * { |
| * DomainType, // 0x7:WiFi |
| * WifiTASSelection, // Enable/Disable the TAS feature |
| * WifiTASListEntries, // No. of blocked countries not approved by OEM to |
| * BlockedListEntry1, support this feature |
| * BlockedListEntry2, |
| * BlockedListEntry3, |
| * BlockedListEntry4, |
| * BlockedListEntry5, |
| * BlockedListEntry6, |
| * BlockedListEntry7, |
| * BlockedListEntry8, |
| * BlockedListEntry9, |
| * BlockedListEntry10, |
| * BlockedListEntry11, |
| * BlockedListEntry12, |
| * BlockedListEntry13, |
| * BlockedListEntry14, |
| * BlockedListEntry15, |
| * BlockedListEntry16, |
| * } |
| * }) |
| */ |
| package_size = 1 + 1 + 1 + MAX_DENYLIST_ENTRY; |
| |
| acpigen_write_name("WTAS"); |
| acpigen_write_package(2); |
| acpigen_write_dword(wtas->revision); |
| acpigen_write_package(package_size); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| acpigen_write_byte(wtas->tas_selection); |
| acpigen_write_byte(wtas->tas_list_size); |
| for (i = 0; i < MAX_DENYLIST_ENTRY; i++) |
| acpigen_write_word(wtas->deny_list_entry[i]); |
| |
| acpigen_write_package_end(); |
| acpigen_write_package_end(); |
| } |
| |
| static void emit_sar_acpi_structures(const struct device *dev, struct dsm_profile *dsm) |
| { |
| union wifi_sar_limits sar_limits = {{NULL, NULL, NULL, NULL, NULL} }; |
| |
| /* |
| * If device type is PCI, ensure that the device has Intel vendor ID. CBFS SAR and SAR |
| * ACPI tables are currently used only by Intel WiFi devices. |
| */ |
| if (dev->path.type == DEVICE_PATH_PCI && dev->vendor != PCI_VID_INTEL) |
| return; |
| |
| /* Retrieve the sar limits data */ |
| if (get_wifi_sar_limits(&sar_limits) < 0) { |
| printk(BIOS_ERR, "failed getting SAR limits!\n"); |
| return; |
| } |
| |
| sar_emit_wrds(sar_limits.sar); |
| sar_emit_ewrd(sar_limits.sar); |
| sar_emit_wgds(sar_limits.wgds); |
| sar_emit_ppag(sar_limits.ppag); |
| sar_emit_wtas(sar_limits.wtas); |
| |
| /* copy the dsm data to be later used for creating _DSM function */ |
| if (sar_limits.dsm != NULL) |
| memcpy(dsm, sar_limits.dsm, sizeof(struct dsm_profile)); |
| |
| free(sar_limits.sar); |
| } |
| |
| static void wifi_ssdt_write_device(const struct device *dev, const char *path) |
| { |
| /* Device */ |
| acpigen_write_device(path); |
| acpi_device_write_uid(dev); |
| |
| if (dev->chip_ops) |
| acpigen_write_name_string("_DDN", dev->chip_ops->name); |
| |
| /* Address */ |
| acpigen_write_ADR_pci_device(dev); |
| |
| acpigen_pop_len(); /* Device */ |
| } |
| |
| static void wifi_ssdt_write_properties(const struct device *dev, const char *scope) |
| { |
| const struct drivers_wifi_generic_config *config = dev->chip_info; |
| |
| bool is_cnvi_ddr_rfim_enabled = config && config->enable_cnvi_ddr_rfim; |
| |
| /* Scope */ |
| acpigen_write_scope(scope); |
| |
| if (config) { |
| /* Wake capabilities */ |
| acpigen_write_PRW(config->wake, ACPI_S3); |
| |
| /* Add _DSD for DmaProperty property. */ |
| if (config->add_acpi_dma_property) |
| acpi_device_add_dma_property(NULL); |
| } |
| |
| /* Fill regulatory domain structure */ |
| if (CONFIG(HAVE_REGULATORY_DOMAIN)) { |
| /* |
| * Name ("WRDD", Package () { |
| * WRDD_REVISION, // Revision |
| * Package () { |
| * DOMAIN_TYPE_WIFI, // Domain Type, 7:WiFi |
| * wifi_regulatory_domain() // Country Identifier |
| * } |
| * }) |
| */ |
| acpigen_write_name("WRDD"); |
| acpigen_write_package(2); |
| acpigen_write_integer(WRDD_REVISION); |
| acpigen_write_package(2); |
| acpigen_write_dword(DOMAIN_TYPE_WIFI); |
| acpigen_write_dword(wifi_regulatory_domain()); |
| acpigen_pop_len(); |
| acpigen_pop_len(); |
| } |
| |
| struct dsm_uuid dsm_ids[MAX_DSM_FUNCS]; |
| /* We will need a copy dsm data to be used later for creating _DSM function */ |
| struct dsm_profile dsm = {0}; |
| uint8_t dsm_count = 0; |
| |
| /* Fill Wifi sar related ACPI structures */ |
| if (CONFIG(USE_SAR)) { |
| emit_sar_acpi_structures(dev, &dsm); |
| |
| if (dsm.supported_functions != 0) { |
| for (int i = 1; i < ARRAY_SIZE(wifi_dsm_callbacks); i++) |
| if (!(dsm.supported_functions & (1 << i))) |
| wifi_dsm_callbacks[i] = NULL; |
| |
| dsm_ids[dsm_count].uuid = ACPI_DSM_OEM_WIFI_UUID; |
| dsm_ids[dsm_count].callbacks = &wifi_dsm_callbacks[0]; |
| dsm_ids[dsm_count].count = ARRAY_SIZE(wifi_dsm_callbacks); |
| dsm_ids[dsm_count].arg = &dsm; |
| dsm_count++; |
| } |
| } |
| |
| if (is_cnvi_ddr_rfim_enabled) { |
| dsm_ids[dsm_count].uuid = ACPI_DSM_RFIM_WIFI_UUID; |
| dsm_ids[dsm_count].callbacks = &wifi_dsm2_callbacks[0]; |
| dsm_ids[dsm_count].count = ARRAY_SIZE(wifi_dsm2_callbacks); |
| dsm_ids[dsm_count].arg = &is_cnvi_ddr_rfim_enabled; |
| dsm_count++; |
| } |
| |
| acpigen_write_dsm_uuid_arr(dsm_ids, dsm_count); |
| |
| acpigen_pop_len(); /* Scope */ |
| |
| printk(BIOS_INFO, "%s: %s %s\n", scope, dev->chip_ops ? dev->chip_ops->name : "", |
| dev_path(dev)); |
| } |
| |
| void wifi_pcie_fill_ssdt(const struct device *dev) |
| { |
| const char *path; |
| |
| path = acpi_device_path(dev); |
| if (!path) |
| return; |
| |
| wifi_ssdt_write_device(dev, path); |
| wifi_ssdt_write_properties(dev, path); |
| } |
| |
| const char *wifi_pcie_acpi_name(const struct device *dev) |
| { |
| static char wifi_acpi_name[WIFI_ACPI_NAME_MAX_LEN]; |
| |
| /* ACPI 6.3, ASL 20.2.2: (Name Objects Encoding). */ |
| snprintf(wifi_acpi_name, sizeof(wifi_acpi_name), "WF%02X", |
| (dev_path_encode(dev) & 0xff)); |
| return wifi_acpi_name; |
| } |
| |
| void wifi_cnvi_fill_ssdt(const struct device *dev) |
| { |
| const char *path; |
| if (!dev) |
| return; |
| |
| path = acpi_device_path(dev->bus->dev); |
| if (!path) |
| return; |
| |
| wifi_ssdt_write_properties(dev, path); |
| } |