diff options
| author | Sugnan Prabhu S <sugnan.prabhu.s@intel.com> | 2021-08-31 07:11:35 +0530 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2021-09-02 22:54:35 +0000 |
| commit | d1fc832c527699265c7d04517010cc4b0ea6aabd (patch) | |
| tree | 74deb12c6e985c6502b5d038a3f8f3fde0fbee21 /src/vendorcode/google | |
| parent | fcb4f2d77e4d0c09bf8e433d724ef0ea272df815 (diff) | |
wifi: Add support for per-platform antenna gain
Add support for the PPAG 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 PPAG related configuration values and
verified that the SSDT has the PPAG ACPI table.
Change-Id: Ie8d25113feeeb4a4242cfd7d72a5091d2d5fb389
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/vendorcode/google')
| -rw-r--r-- | src/vendorcode/google/chromeos/sar.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/sar.c b/src/vendorcode/google/chromeos/sar.c index d6cb021412..5c16f7606b 100644 --- a/src/vendorcode/google/chromeos/sar.c +++ b/src/vendorcode/google/chromeos/sar.c @@ -68,6 +68,14 @@ static int wgds_table_size(const struct geo_profile *geo) return sizeof(struct geo_profile) + (geo->chains_count * geo->bands_count); } +static int gain_table_size(const struct gain_profile *gain) +{ + if (gain == NULL) + return 0; + + return sizeof(struct gain_profile) + (gain->chains_count * gain->bands_count); +} + static bool valid_legacy_length(size_t bin_len) { if (bin_len == LEGACY_SAR_WGDS_BIN_SIZE) @@ -116,6 +124,7 @@ static int fill_wifi_sar_limits(union wifi_sar_limits *sar_limits, const uint8_t expected_sar_bin_size = header_size; expected_sar_bin_size += sar_table_size(sar_limits->sar); expected_sar_bin_size += wgds_table_size(sar_limits->wgds); + expected_sar_bin_size += gain_table_size(sar_limits->ppag); if (sar_bin_size != expected_sar_bin_size) { printk(BIOS_ERR, "ERROR: Invalid SAR size, expected: %ld, obtained: %ld\n", @@ -178,6 +187,7 @@ static int fill_wifi_sar_limits_legacy(union wifi_sar_limits *sar_limits, * Offsets * [SAR_REVISION,DSAR_SET_COUNT,CHAINS_COUNT,SUBBANDS_COUNT <WRDD>[EWRD]] * [WGDS_REVISION,CHAINS_COUNT,SUBBANDS_COUNT<WGDS_DATA>] + * [PPAG_REVISION,MODE,CHAINS_COUNT,SUBBANDS_COUNT<PPAG_DATA>] * * The configuration data will always have the revision added in the file for each of the * block, based on the revision number and validity, size of the specific block will be @@ -195,6 +205,23 @@ static int fill_wifi_sar_limits_legacy(union wifi_sar_limits *sar_limits, * [GROUP#0] is for FCC * [GROUP#1] is for Europe/Japan * [GROUP#2] is for ROW + * + * [PPAG_DATA] = [ANT_gain Table Chain A] [ANT_gain Table Chain A] + * + * [ANT_gain Table] = + * Supported by Revision 0, 1 and 2 + * [Antenna gain used for 2400MHz frequency] + * [Antenna gain used for 5150-5350MHz frequency] + * [Antenna gain used for 5350-5470MHz frequency] + * [Antenna gain used for 5470-5725MHz frequency] + * [Antenna gain used for 5725-5945MHz frequency] + * Supported by Revision 1 and 2 + * [Antenna gain used for 5945-6165MHz frequency] + * [Antenna gain used for 6165-6405MHz frequency] + * [Antenna gain used for 6405-6525MHz frequency] + * [Antenna gain used for 6525-6705MHz frequency] + * [Antenna gain used for 6705-6865MHz frequency] + * [Antenna gain used for 6865-7105MHz frequency] */ int get_wifi_sar_limits(union wifi_sar_limits *sar_limits) { |