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drivers/wifi: Support Radio Frequency Interference Mitigation

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The 'Radio Frequency Interference Mitigation' DSM function 11
provides the desired status of the RFI mitigation.

The implementation follows document 559910 Intel Connectivity
Platforms BIOS Guideline revision 8.3 specification.

BUG=b:352768410
TEST=ACPI DSM Function 11 reflects the value of the SAR binary

Change-Id: I02808b0ce6a0a380845612e774e326c698ad1adc
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83431
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Jeremy Compostella 2024-07-11 15:51:37 -07:00 committed by Felix Held
parent dd4b3aa7b9
commit dc35e66880
2 changed files with 22 additions and 1 deletions
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22
src/drivers/wifi/generic/acpi.c
View File

@ -211,6 +211,26 @@ static void wifi_dsm_energy_detection_threshold(void *args)
acpigen_write_return_integer(dsm_config->energy_detection_threshold);
}
/*
* Function 11: RFI mitigation
* Bit 0:
* 0 - DLVR RFIm enabled (default)
* 1 - DLVR RFIm disabled
*
* Bit 1:
* 0 - DDR RFIm enabled (default)
* 1 - DDR RFIm disabled
*
* Bits 2-31: Reserved - Should be 0
*/
static void wifi_dsm_rfi_mitigation(void *args)
{
struct dsm_profile *dsm_config = (struct dsm_profile *)args;
acpigen_write_return_integer(dsm_config->rfi_mitigation);
}
/*
* Function 12: Control Enablement 802.11be on certificated modules
* Bit 0
@ -251,7 +271,7 @@ static void (*wifi_dsm_callbacks[])(void *) = {
NULL, /* Function 8 */
NULL, /* Function 9 */
wifi_dsm_energy_detection_threshold, /* Function 10 */
NULL, /* Function 11 */
wifi_dsm_rfi_mitigation, /* Function 11 */
wifi_dsm_11be_country_enablement, /* Function 12 */
};

1
src/include/sar.h
View File

@ -61,6 +61,7 @@ struct dsm_profile {
uint32_t unii_4;
uint32_t enablement_11be;
uint32_t energy_detection_threshold;
uint32_t rfi_mitigation;
};
struct bsar_profile {