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wifi: Add support for wifi time average SAR config

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Add support for the WTAS ACPI BIOS configuration table as per the
connectivity document:
559910_Intel_Connectivity_Platforms_BIOS_Guidelines_Rev6_4.pdf

BUG=b:193665559
TEST=Generated SAR file with the WTAS related configuration values and
verified that the SSDT has the WTAS ACPI table.

Change-Id: I42cf3cba7974e6db0e05de30846ef103a15fd584
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57061
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Sugnan Prabhu S
2021-08-31 07:19:30 +05:30
committed by Tim Wawrzynczak
parent d1fc832c52
commit cc50770cd0
3 changed files with 78 additions and 1 deletions
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53
src/drivers/wifi/generic/acpi.c
View File

@@ -267,6 +267,58 @@ static void sar_emit_ppag(struct gain_profile *ppag)
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_dword(wtas->tas_selection);
acpigen_write_dword(wtas->tas_list_size);
for (i = 0; i < MAX_DENYLIST_ENTRY; i++)
acpigen_write_byte(wtas->deny_list_entry[i]);
acpigen_write_package_end();
acpigen_write_package_end();
}
static void emit_sar_acpi_structures(const struct device *dev)
{
union wifi_sar_limits sar_limits;
@@ -288,6 +340,7 @@ static void emit_sar_acpi_structures(const struct device *dev)
sar_emit_ewrd(sar_limits.sar);
sar_emit_wgds(sar_limits.wgds);
sar_emit_ppag(sar_limits.ppag);
sar_emit_wtas(sar_limits.wtas);
free(sar_limits.sar);
}