diff options
Diffstat (limited to 'src/drivers/intel/wifi')
| -rw-r--r-- | src/drivers/intel/wifi/Kconfig | 24 | ||||
| -rw-r--r-- | src/drivers/intel/wifi/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/drivers/intel/wifi/chip.h | 3 | ||||
| -rw-r--r-- | src/drivers/intel/wifi/wifi.c | 55 |
4 files changed, 85 insertions, 1 deletions
diff --git a/src/drivers/intel/wifi/Kconfig b/src/drivers/intel/wifi/Kconfig index 1e6be6dfd0..3cf0446648 100644 --- a/src/drivers/intel/wifi/Kconfig +++ b/src/drivers/intel/wifi/Kconfig @@ -11,7 +11,9 @@ config USE_SAR default n help Enable it when wifi driver uses SAR configuration feature. - VPD entry "wifi_sar" is required to support it. + 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 @@ -23,6 +25,26 @@ config DSAR_ENABLE default n depends on USE_SAR +config GEO_SAR_ENABLE + bool + default n + depends on USE_SAR + +config WIFI_SAR_CBFS + bool + 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/$(MAINBOARDDIR)/wifi_sar_defaults.hex" + config DSAR_SET_NUM hex "Number of SAR sets when D-SAR is enabled" default 0x3 diff --git a/src/drivers/intel/wifi/Makefile.inc b/src/drivers/intel/wifi/Makefile.inc index aab811c1c4..c354c0b89b 100644 --- a/src/drivers/intel/wifi/Makefile.inc +++ b/src/drivers/intel/wifi/Makefile.inc @@ -12,3 +12,7 @@ # ramstage-$(CONFIG_DRIVERS_INTEL_WIFI) += wifi.c + +cbfs-files-$(CONFIG_WIFI_SAR_CBFS) += wifi_sar_defaults.hex +wifi_sar_defaults.hex-file := $(call strip_quotes,$(CONFIG_WIFI_SAR_CBFS_FILEPATH)) +wifi_sar_defaults.hex-type := raw diff --git a/src/drivers/intel/wifi/chip.h b/src/drivers/intel/wifi/chip.h index 0871874ba7..1b3c2a5834 100644 --- a/src/drivers/intel/wifi/chip.h +++ b/src/drivers/intel/wifi/chip.h @@ -28,6 +28,9 @@ /* EWRD Domain type */ #define EWRD_DOMAIN_TYPE_WIFI 0x7 +/* WGDS Domain type */ +#define WGDS_DOMAIN_TYPE_WIFI 0x7 + struct drivers_intel_wifi_config { unsigned wake; /* Wake pin for ACPI _PRW */ }; diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c index 3ef66aad2a..4b96a0297c 100644 --- a/src/drivers/intel/wifi/wifi.c +++ b/src/drivers/intel/wifi/wifi.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2014 Vladimir Serbinenko + * Copyright (C) 2018 Intel Corp. * * 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 @@ -75,6 +76,7 @@ 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) { @@ -135,6 +137,59 @@ static void emit_sar_acpi_structures(void) acpigen_write_byte(sar_limits.sar_limit[i][j]); acpigen_pop_len(); acpigen_pop_len(); + + + if (!IS_ENABLED(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) |