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| author | Pratik Prajapati <pratikkumar.v.prajapati@intel.com> | 2017-08-11 14:06:57 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-07-13 10:42:04 +0000 |
| commit | 7fd1e4b9b1f992b67a0bb2628130db42c0ab4dac (patch) | |
| tree | 4880eab63f09b0c086ed72275094a2b8dd713bd8 /src/drivers/intel/wifi/Kconfig | |
| parent | 8919ac726bf9bbbd87bdbf806ecfe8c33cddec50 (diff) | |
| download | coreboot-7fd1e4b9b1f992b67a0bb2628130db42c0ab4dac.tar.xz | |
intel/wifi: Add WGDS ACPI method for Geo Aware SAR
To comply with all relevant bodies throughout the world, SAR settings
take into account the lowest common denominator Tx power settings. This
setup may lead to non-optimal performance when the user location is in a
country that may allow higher power setting. The purpose of Wireless Geo
Delta Settings (WGDS) is to provide offset settings for FCC, Europe,
Japan and Rest of the world. These offsets would be added (by Intel wifi
driver) to the base SAR Tx Power as defined in WRDS and EWRD
BUG=b:65155728
BRANCH=none
TEST=WGDS ACPI table gets created as expected.
Change-Id: I4f602e3f95ff3545db6cc6e428beb9a36abd9296
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21098
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/drivers/intel/wifi/Kconfig')
| -rw-r--r-- | src/drivers/intel/wifi/Kconfig | 24 |
1 files changed, 23 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 |