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drivers/wifi: Support Bluetooth Regulator Domain Settings

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The 'Bluetooth Increased Power Mode - SAR Limitation' feature provides
ability to utilize increased device Transmit power capability for
Bluetooth applications in coordination with Wi-Fi adhering to product
SAR limit when Bluetooth and Wi-Fi run together.

This commit introduces a `bluetooth_companion' field to the generic
Wi-Fi drivers chip data. This field can be set in the board design
device tree to supply the bluetooth device for which the BRDS function
must be created.

This feature is required for Meteor Lake rex karis variant.

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

BUG=b:348345301
BRANCH=firmware-rex-15709.B
TEST=BRDS method is added to the CNVW device and return the data
     supplied by the SAR binary blob

Change-Id: Iebe95815c944d045f4cf686abcd1874a8a45e209
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83200
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jeremy Compostella
2024-06-24 10:16:41 -07:00
committed by Jérémy Compostella
parent 2721846dab
commit 71dda74fe8
4 changed files with 105 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/vendorcode/google/chromeos/sar.c
View File

@ -94,6 +94,14 @@ static int dsm_table_size(const struct dsm_profile *dsm)
return sizeof(struct dsm_profile);
}
static int bsar_table_size(const struct bsar_profile *bsar)
{
if (bsar == NULL)
return 0;
return sizeof(struct bsar_profile);
}
static bool valid_legacy_length(size_t bin_len)
{
if (bin_len == LEGACY_SAR_WGDS_BIN_SIZE)
@ -145,6 +153,7 @@ static int fill_wifi_sar_limits(union wifi_sar_limits *sar_limits, const uint8_t
expected_sar_bin_size += gain_table_size(sar_limits->ppag);
expected_sar_bin_size += sar_avg_table_size(sar_limits->wtas);
expected_sar_bin_size += dsm_table_size(sar_limits->dsm);
expected_sar_bin_size += bsar_table_size(sar_limits->bsar);
if (sar_bin_size != expected_sar_bin_size) {
printk(BIOS_ERR, "Invalid SAR size, expected: %zu, obtained: %zu\n",
@ -210,6 +219,7 @@ static int fill_wifi_sar_limits_legacy(union wifi_sar_limits *sar_limits,
* [PPAG_REVISION,MODE,CHAINS_COUNT,SUBBANDS_COUNT<PPAG_DATA>]
* [WTAS_REVISION, WTAS_DATA]
* [DSM_RETURN_VALUES]
* [BSAR_REVISION,IPML,LB,BR,EDR2,EDR3,LE,LE2,LE_LR]
*
* 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