diff options
| author | Jeremy Compostella <jeremy.compostella@intel.com> | 2024-10-31 13:08:44 -0700 |
|---|---|---|
| committer | Jérémy Compostella <jeremy.compostella@intel.com> | 2024-11-27 21:28:34 +0000 |
| commit | 1e8c6819b16ef5e21b2f3f0137a6027367387298 (patch) | |
| tree | 1aab94bdb4e0cbd03564d89be358d756cfa14830 /src/drivers/wifi | |
| parent | c8ab1db0c65f4ffbdebd384abba455af005bd0a5 (diff) | |
drivers/wifi: Support Wi-Fi PHY Filter Configuration
This feature provides ability to provide Wi-Fi PHY filter
Configuration. A well-defined dedicated filter on particular platform
can be used to perform the maximum Wi-Fi performance.
The implementation follows document 559910 Intel Connectivity
Platforms BIOS Guideline revision 9.2 specification.
BUG=b:346600091
TEST=WPFC method is added to the wifi device and return the data
supplied by the SAR binary blob
Change-Id: Iebe95815c944d045f4cf686abcd1874a8a45e270
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84948
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/wifi')
| -rw-r--r-- | src/drivers/wifi/generic/acpi.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/drivers/wifi/generic/acpi.c b/src/drivers/wifi/generic/acpi.c index be44f6b907..d3277cc1e0 100644 --- a/src/drivers/wifi/generic/acpi.c +++ b/src/drivers/wifi/generic/acpi.c @@ -927,6 +927,46 @@ static void sar_emit_ebrd(const struct ebrd_profile *ebrd) acpigen_write_package_end(); } +static void sar_emit_wpfc(const struct wpfc_profile *wpfc) +{ + if (wpfc == NULL) + return; + + /* + * Name ("WPFC", Package() { + * { + * Revision, + * Package() + * { + * DomainType, // 0x7:WiFi + * Chain A Filter Platform Configuration + * Chain B Filter Platform Configuration + * Chain C Filter Platform Configuration + * Chain D Filter Platform Configuration + * } + } }) + */ + if (wpfc->revision != WPFC_REVISION) { + printk(BIOS_ERR, "Unsupported WPFC table revision: %d\n", + wpfc->revision); + return; + } + + acpigen_write_name("WPFC"); + acpigen_write_package(2); + acpigen_write_dword(wpfc->revision); + + acpigen_write_package(5); + acpigen_write_dword(DOMAIN_TYPE_WIFI); + acpigen_write_byte(wpfc->filter_cfg_chain_a); + acpigen_write_byte(wpfc->filter_cfg_chain_b); + acpigen_write_byte(wpfc->filter_cfg_chain_c); + acpigen_write_byte(wpfc->filter_cfg_chain_d); + + acpigen_write_package_end(); + acpigen_write_package_end(); +} + static void emit_wifi_sar_acpi_structures(const struct device *dev, union wifi_sar_limits *sar_limits) { @@ -943,6 +983,7 @@ static void emit_wifi_sar_acpi_structures(const struct device *dev, sar_emit_ppag(sar_limits->ppag); sar_emit_wtas(sar_limits->wtas); sar_emit_wbem(sar_limits->wbem); + sar_emit_wpfc(sar_limits->wpfc); } static void wifi_ssdt_write_device(const struct device *dev, const char *path) |