diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/intel/wifi/Kconfig | 47 | ||||
| -rw-r--r-- | src/drivers/intel/wifi/chip.h | 23 | ||||
| -rw-r--r-- | src/drivers/intel/wifi/wifi.c | 195 | ||||
| -rw-r--r-- | src/drivers/wifi/Kconfig | 57 | ||||
| -rw-r--r-- | src/drivers/wifi/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/drivers/wifi/generic.c | 245 | ||||
| -rw-r--r-- | src/drivers/wifi/generic_wifi.h | 51 |
7 files changed, 367 insertions, 252 deletions
diff --git a/src/drivers/intel/wifi/Kconfig b/src/drivers/intel/wifi/Kconfig index 4dc4d7faeb..fc8700fa82 100644 --- a/src/drivers/intel/wifi/Kconfig +++ b/src/drivers/intel/wifi/Kconfig @@ -2,52 +2,7 @@ config DRIVERS_INTEL_WIFI bool "Support Intel PCI-e WiFi adapters" depends on ARCH_X86 default y if PCIEXP_PLUGIN_SUPPORT + select DRIVERS_GENERIC_WIFI if HAVE_ACPI_TABLES help When enabled, add identifiers in ACPI and SMBIOS tables to make OS drivers work with certain Intel PCI-e WiFi chipsets. - -config USE_SAR - bool - default n - help - Enable it when wifi driver uses SAR configuration feature. - VPD entry "wifi_sar" is read to get SAR settings, if its - not found driver may look into CBFS for default settigs. - WIFI_SAR_CBFS is option to enable CBFS lookup. - -config SAR_ENABLE - bool - default n - depends on USE_SAR - -config DSAR_ENABLE - bool - default n - depends on USE_SAR - -config GEO_SAR_ENABLE - bool - default n - depends on USE_SAR - -config WIFI_SAR_CBFS - bool "Enable SAR table addition to CBFS" - default n - depends on USE_SAR - help - wifi driver would look for "wifi_sar" vpd key and load SAR settings from - it, if the vpd key is not found then the driver tries to look for sar - settings from CBFS with file name wifi_sar_defaults.hex. - So OEM/ODM can override wifi sar with VPD. - -config WIFI_SAR_CBFS_FILEPATH - string "The cbfs file which has WIFI SAR defaults" - depends on WIFI_SAR_CBFS - default "src/mainboard/$(MAINBOARDDIR)/wifi_sar_defaults.hex" - -config DSAR_SET_NUM - hex "Number of SAR sets when D-SAR is enabled" - default 0x3 - depends on USE_SAR - help - There can be up to 3 optional SAR table sets. diff --git a/src/drivers/intel/wifi/chip.h b/src/drivers/intel/wifi/chip.h index 1b3c2a5834..21803108ca 100644 --- a/src/drivers/intel/wifi/chip.h +++ b/src/drivers/intel/wifi/chip.h @@ -13,26 +13,11 @@ * GNU General Public License for more details. */ -#ifndef _WIFI_CHIP_H_ -#define _WIFI_CHIP_H_ - -/* WRDS Spec Revision */ -#define WRDS_REVISION 0x0 - -/* EWRD Spec Revision */ -#define EWRD_REVISION 0x0 - -/* WRDS Domain type */ -#define WRDS_DOMAIN_TYPE_WIFI 0x7 - -/* EWRD Domain type */ -#define EWRD_DOMAIN_TYPE_WIFI 0x7 - -/* WGDS Domain type */ -#define WGDS_DOMAIN_TYPE_WIFI 0x7 +#ifndef _INTEL_WIFI_CHIP_H_ +#define _INTEL_WIFI_CHIP_H_ struct drivers_intel_wifi_config { - unsigned wake; /* Wake pin for ACPI _PRW */ + unsigned int wake; /* Wake pin for ACPI _PRW */ }; -#endif /* _WIFI_CHIP_H_ */ +#endif /* _INTEL_WIFI_CHIP_H_ */ diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c index 83cfaa925c..926905c26b 100644 --- a/src/drivers/intel/wifi/wifi.c +++ b/src/drivers/intel/wifi/wifi.c @@ -15,19 +15,16 @@ * GNU General Public License for more details. */ -#include <arch/acpi_device.h> -#include <arch/acpigen.h> #include <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ops.h> #include <device/pci_ids.h> #include <elog.h> -#include <sar.h> #include <smbios.h> #include <string.h> -#include <wrdd.h> #include "chip.h" +#include "drivers/wifi/generic_wifi.h" #define PMCS_DR 0xcc #define PME_STS (1 << 15) @@ -65,194 +62,18 @@ static int smbios_write_wifi(struct device *dev, int *handle, } #endif -__weak -int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits) -{ - return -1; -} - #if CONFIG(HAVE_ACPI_TABLES) -static void emit_sar_acpi_structures(void) -{ - int i, j, package_size; - struct wifi_sar_limits sar_limits; - struct wifi_sar_delta_table *wgds; - - /* Retrieve the sar limits data */ - if (get_wifi_sar_limits(&sar_limits) < 0) { - printk(BIOS_ERR, "Error: failed from getting SAR limits!\n"); - 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 (10 bytes) - * } - * }) - */ - acpigen_write_name("WRDS"); - acpigen_write_package(2); - acpigen_write_dword(WRDS_REVISION); - /* Emit 'Domain Type' + 'WiFi SAR BIOS' + 10 bytes for Set#1 */ - package_size = 1 + 1 + BYTES_PER_SAR_LIMIT; - acpigen_write_package(package_size); - acpigen_write_dword(WRDS_DOMAIN_TYPE_WIFI); - acpigen_write_dword(CONFIG(SAR_ENABLE)); - for (i = 0; i < BYTES_PER_SAR_LIMIT; i++) - acpigen_write_byte(sar_limits.sar_limit[0][i]); - acpigen_pop_len(); - acpigen_pop_len(); - - /* - * 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 (10 bytes) - * SAR Table Set, // Set#3 of SAR Table (10 bytes) - * SAR Table Set // Set#4 of SAR Table (10 bytes) - * } - * }) - */ - acpigen_write_name("EWRD"); - acpigen_write_package(2); - acpigen_write_dword(EWRD_REVISION); - /* - * Emit 'Domain Type' + "Dynamic SAR Enable' + 'Extended SAR sets' - * + number of bytes for Set#2 & 3 & 4 - */ - package_size = 1 + 1 + 1 + (NUM_SAR_LIMITS - 1) * BYTES_PER_SAR_LIMIT; - acpigen_write_package(package_size); - acpigen_write_dword(EWRD_DOMAIN_TYPE_WIFI); - acpigen_write_dword(CONFIG(DSAR_ENABLE)); - acpigen_write_dword(CONFIG_DSAR_SET_NUM); - for (i = 1; i < NUM_SAR_LIMITS; i++) - for (j = 0; j < BYTES_PER_SAR_LIMIT; j++) - acpigen_write_byte(sar_limits.sar_limit[i][j]); - acpigen_pop_len(); - acpigen_pop_len(); - - - if (!CONFIG(GEO_SAR_ENABLE)) - 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 - * 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 - * 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 - * } - * }) - */ - - wgds = &sar_limits.wgds; - acpigen_write_name("WGDS"); - acpigen_write_package(2); - acpigen_write_dword(wgds->version); - /* Emit 'Domain Type' + - * Group specific delta of power (6 bytes * NUM_WGDS_SAR_GROUPS) - */ - package_size = sizeof(sar_limits.wgds.group) + 1; - acpigen_write_package(package_size); - acpigen_write_dword(WGDS_DOMAIN_TYPE_WIFI); - for (i = 0; i < SAR_NUM_WGDS_GROUPS; i++) { - acpigen_write_byte(wgds->group[i].power_max_2400mhz); - acpigen_write_byte(wgds->group[i].power_chain_a_2400mhz); - acpigen_write_byte(wgds->group[i].power_chain_b_2400mhz); - acpigen_write_byte(wgds->group[i].power_max_5200mhz); - acpigen_write_byte(wgds->group[i].power_chain_a_5200mhz); - acpigen_write_byte(wgds->group[i].power_chain_b_5200mhz); - } - - acpigen_pop_len(); - acpigen_pop_len(); -} - static void intel_wifi_fill_ssdt(struct device *dev) { struct drivers_intel_wifi_config *config = dev->chip_info; - const char *path = acpi_device_path(dev->bus->dev); - u32 address; - - if (!path || !dev->enabled) - return; - - /* Device */ - acpigen_write_scope(path); - acpigen_write_device(acpi_device_name(dev)); - acpigen_write_name_integer("_UID", 0); - if (dev->chip_ops) - acpigen_write_name_string("_DDN", dev->chip_ops->name); + struct generic_wifi_config generic_config; - /* Address */ - address = PCI_SLOT(dev->path.pci.devfn) & 0xffff; - address <<= 16; - address |= PCI_FUNC(dev->path.pci.devfn) & 0xffff; - acpigen_write_name_dword("_ADR", address); - - /* Wake capabilities */ - if (config && config->wake) - acpigen_write_PRW(config->wake, 3); - - /* Fill regulatory domain structure */ - if (CONFIG(HAVE_REGULATORY_DOMAIN)) { - /* - * Name ("WRDD", Package () { - * WRDD_REVISION, // Revision - * Package () { - * WRDD_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(WRDD_DOMAIN_TYPE_WIFI); - acpigen_write_dword(wifi_regulatory_domain()); - acpigen_pop_len(); - acpigen_pop_len(); + if (config) { + generic_config.wake = config->wake; + /* By default, all intel wifi chips wake from S3 */ + generic_config.maxsleep = 3; } - - /* Fill Wifi sar related ACPI structures */ - if (CONFIG(USE_SAR)) - emit_sar_acpi_structures(); - - acpigen_pop_len(); /* Device */ - acpigen_pop_len(); /* Scope */ - - printk(BIOS_INFO, "%s.%s: %s %s\n", path, acpi_device_name(dev), - dev->chip_ops ? dev->chip_ops->name : "", dev_path(dev)); -} - -static const char *intel_wifi_acpi_name(const struct device *dev) -{ - return "WIFI"; + generic_wifi_fill_ssdt(dev, config ? &generic_config : NULL); } #endif @@ -282,7 +103,7 @@ struct device_operations device_ops = { #endif .ops_pci = &pci_ops, #if CONFIG(HAVE_ACPI_TABLES) - .acpi_name = intel_wifi_acpi_name, + .acpi_name = generic_wifi_acpi_name, .acpi_fill_ssdt_generator = intel_wifi_fill_ssdt, #endif }; diff --git a/src/drivers/wifi/Kconfig b/src/drivers/wifi/Kconfig new file mode 100644 index 0000000000..9b87f844f6 --- /dev/null +++ b/src/drivers/wifi/Kconfig @@ -0,0 +1,57 @@ +config DRIVERS_GENERIC_WIFI + bool + default n + depends on HAVE_ACPI_TABLES + help + When enabled, add identifiers in ACPI tables that are common + to WiFi chipsets from multiple vendors. + +if DRIVERS_GENERIC_WIFI + +config USE_SAR + bool + default n + help + Enable it when wifi driver uses SAR configuration feature. + VPD entry "wifi_sar" is read to get SAR settings, if its + not found driver may look into CBFS for default settigs. + WIFI_SAR_CBFS is option to enable CBFS lookup. + +config SAR_ENABLE + bool + default n + depends on USE_SAR + +config DSAR_ENABLE + bool + default n + depends on USE_SAR + +config GEO_SAR_ENABLE + bool + default n + depends on USE_SAR + +config WIFI_SAR_CBFS + bool "Enable SAR table addition to CBFS" + default n + depends on USE_SAR + help + wifi driver would look for "wifi_sar" vpd key and load SAR settings from + it, if the vpd key is not found then the driver tries to look for sar + settings from CBFS with file name wifi_sar_defaults.hex. + So OEM/ODM can override wifi sar with VPD. + +config WIFI_SAR_CBFS_FILEPATH + string "The cbfs file which has WIFI SAR defaults" + depends on WIFI_SAR_CBFS + default "src/mainboard/$(MAINBOARDDIR)/wifi_sar_defaults.hex" + +config DSAR_SET_NUM + hex "Number of SAR sets when D-SAR is enabled" + default 0x3 + depends on USE_SAR + help + There can be up to 3 optional SAR table sets. + +endif # DRIVERS_GENERIC_WIFI diff --git a/src/drivers/wifi/Makefile.inc b/src/drivers/wifi/Makefile.inc new file mode 100644 index 0000000000..d37015c7d3 --- /dev/null +++ b/src/drivers/wifi/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_DRIVERS_GENERIC_WIFI) += generic.c diff --git a/src/drivers/wifi/generic.c b/src/drivers/wifi/generic.c new file mode 100644 index 0000000000..b593ffe8bc --- /dev/null +++ b/src/drivers/wifi/generic.c @@ -0,0 +1,245 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 or (at your option) + * any later version of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <arch/acpi_device.h> +#include <arch/acpigen.h> +#include <console/console.h> +#include <device/device.h> +#include <device/pci_def.h> +#include <sar.h> +#include <string.h> +#include <wrdd.h> +#include "generic_wifi.h" + +/* WRDS Spec Revision */ +#define WRDS_REVISION 0x0 + +/* EWRD Spec Revision */ +#define EWRD_REVISION 0x0 + +/* WRDS Domain type */ +#define WRDS_DOMAIN_TYPE_WIFI 0x7 + +/* EWRD Domain type */ +#define EWRD_DOMAIN_TYPE_WIFI 0x7 + +/* WGDS Domain type */ +#define WGDS_DOMAIN_TYPE_WIFI 0x7 + +/* + * 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 + +__weak +int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits) +{ + return -1; +} + +static void emit_sar_acpi_structures(void) +{ + int i, j, package_size; + struct wifi_sar_limits sar_limits; + struct wifi_sar_delta_table *wgds; + + /* Retrieve the sar limits data */ + if (get_wifi_sar_limits(&sar_limits) < 0) { + printk(BIOS_ERR, "Error: failed from getting SAR limits!\n"); + 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 (10 bytes) + * } + * }) + */ + acpigen_write_name("WRDS"); + acpigen_write_package(2); + acpigen_write_dword(WRDS_REVISION); + /* Emit 'Domain Type' + 'WiFi SAR BIOS' + 10 bytes for Set#1 */ + package_size = 1 + 1 + BYTES_PER_SAR_LIMIT; + acpigen_write_package(package_size); + acpigen_write_dword(WRDS_DOMAIN_TYPE_WIFI); + acpigen_write_dword(CONFIG(SAR_ENABLE)); + for (i = 0; i < BYTES_PER_SAR_LIMIT; i++) + acpigen_write_byte(sar_limits.sar_limit[0][i]); + acpigen_pop_len(); + acpigen_pop_len(); + + /* + * 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 (10 bytes) + * SAR Table Set, // Set#3 of SAR Table (10 bytes) + * SAR Table Set // Set#4 of SAR Table (10 bytes) + * } + * }) + */ + acpigen_write_name("EWRD"); + acpigen_write_package(2); + acpigen_write_dword(EWRD_REVISION); + /* + * Emit 'Domain Type' + "Dynamic SAR Enable' + 'Extended SAR sets' + * + number of bytes for Set#2 & 3 & 4 + */ + package_size = 1 + 1 + 1 + (NUM_SAR_LIMITS - 1) * BYTES_PER_SAR_LIMIT; + acpigen_write_package(package_size); + acpigen_write_dword(EWRD_DOMAIN_TYPE_WIFI); + acpigen_write_dword(CONFIG(DSAR_ENABLE)); + acpigen_write_dword(CONFIG_DSAR_SET_NUM); + for (i = 1; i < NUM_SAR_LIMITS; i++) + for (j = 0; j < BYTES_PER_SAR_LIMIT; j++) + acpigen_write_byte(sar_limits.sar_limit[i][j]); + acpigen_pop_len(); + acpigen_pop_len(); + + + if (!CONFIG(GEO_SAR_ENABLE)) + 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 + * 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 + * 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 + * } + * }) + */ + + wgds = &sar_limits.wgds; + acpigen_write_name("WGDS"); + acpigen_write_package(2); + acpigen_write_dword(wgds->version); + /* Emit 'Domain Type' + + * Group specific delta of power (6 bytes * NUM_WGDS_SAR_GROUPS) + */ + package_size = sizeof(sar_limits.wgds.group) + 1; + acpigen_write_package(package_size); + acpigen_write_dword(WGDS_DOMAIN_TYPE_WIFI); + for (i = 0; i < SAR_NUM_WGDS_GROUPS; i++) { + acpigen_write_byte(wgds->group[i].power_max_2400mhz); + acpigen_write_byte(wgds->group[i].power_chain_a_2400mhz); + acpigen_write_byte(wgds->group[i].power_chain_b_2400mhz); + acpigen_write_byte(wgds->group[i].power_max_5200mhz); + acpigen_write_byte(wgds->group[i].power_chain_a_5200mhz); + acpigen_write_byte(wgds->group[i].power_chain_b_5200mhz); + } + + acpigen_pop_len(); + acpigen_pop_len(); +} + +void generic_wifi_fill_ssdt(struct device *dev, + const struct generic_wifi_config *config) +{ + const char *path; + u32 address; + + if (!dev->enabled) + return; + + path = acpi_device_path(dev->bus->dev); + if (!path) + return; + + /* Device */ + acpigen_write_scope(path); + acpigen_write_device(acpi_device_name(dev)); + acpigen_write_name_integer("_UID", 0); + if (dev->chip_ops) + acpigen_write_name_string("_DDN", dev->chip_ops->name); + + /* Address */ + address = PCI_SLOT(dev->path.pci.devfn) & 0xffff; + address <<= 16; + address |= PCI_FUNC(dev->path.pci.devfn) & 0xffff; + acpigen_write_name_dword("_ADR", address); + + /* Wake capabilities */ + if (config) + acpigen_write_PRW(config->wake, config->maxsleep); + + /* Fill regulatory domain structure */ + if (CONFIG(HAVE_REGULATORY_DOMAIN)) { + /* + * Name ("WRDD", Package () { + * WRDD_REVISION, // Revision + * Package () { + * WRDD_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(WRDD_DOMAIN_TYPE_WIFI); + acpigen_write_dword(wifi_regulatory_domain()); + acpigen_pop_len(); + acpigen_pop_len(); + } + + /* Fill Wifi sar related ACPI structures */ + if (CONFIG(USE_SAR)) + emit_sar_acpi_structures(); + + acpigen_pop_len(); /* Device */ + acpigen_pop_len(); /* Scope */ + + printk(BIOS_INFO, "%s.%s: %s %s\n", path, acpi_device_name(dev), + dev->chip_ops ? dev->chip_ops->name : "", dev_path(dev)); +} + +const char *generic_wifi_acpi_name(const struct device *dev) +{ + static char wifi_acpi_name[WIFI_ACPI_NAME_MAX_LEN]; + + snprintf(wifi_acpi_name, sizeof(wifi_acpi_name), "WF%02x", + (dev_path_encode(dev) & 0xff)); + return wifi_acpi_name; +} diff --git a/src/drivers/wifi/generic_wifi.h b/src/drivers/wifi/generic_wifi.h new file mode 100644 index 0000000000..5f17c3e297 --- /dev/null +++ b/src/drivers/wifi/generic_wifi.h @@ -0,0 +1,51 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _GENERIC_WIFI_H_ +#define _GENERIC_WIFI_H_ + +/** + * struct generic_wifi_config - Data structure to contain common wifi config + * @wake: Wake pin for ACPI _PRW + * @maxsleep: Maximum sleep state to wake from + */ +struct generic_wifi_config { + unsigned int wake; + unsigned int maxsleep; +}; + +/** + * wifi_fill_ssdt() - Fill ACPI SSDT table for WiFi controller + * @dev: Device structure corresponding to WiFi controller. + * @config: Common wifi config required to fill ACPI SSDT table. + * + * This function implements common device operation to help fill ACPI SSDT + * table for WiFi controller. + */ +void generic_wifi_fill_ssdt(struct device *dev, + const struct generic_wifi_config *config); + +/** + * wifi_acpi_name() - Get ACPI name for WiFi controller + * @dev: Device structure corresponding to WiFi controller. + * + * This function implements common device operation to get the ACPI name for + * WiFi controller. + * + * Return: string representing the ACPI name for WiFi controller. + */ +const char *generic_wifi_acpi_name(const struct device *dev); + +#endif /* _GENERIC_WIFI_H_ */ |