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-rw-r--r--src/drivers/wifi/generic/acpi.c36
-rw-r--r--src/include/sar.h9
-rw-r--r--src/vendorcode/google/chromeos/sar.c9
3 files changed, 53 insertions, 1 deletions
diff --git a/src/drivers/wifi/generic/acpi.c b/src/drivers/wifi/generic/acpi.c
index 8bfce816fb..a3fd3ca4c0 100644
--- a/src/drivers/wifi/generic/acpi.c
+++ b/src/drivers/wifi/generic/acpi.c
@@ -771,6 +771,41 @@ static void sar_emit_bdcm(const struct bdcm_profile *bdcm)
acpigen_write_package_end();
}
+static void sar_emit_bbsm(const struct bbsm_profile *bbsm)
+{
+ if (bbsm == NULL)
+ return;
+
+ /*
+ * Name ("BBSM", Package () {
+ * Revision,
+ * Package () {
+ * Domain Type, // 0x12:Bluetooth
+ * Bluetooth Bands Selection
+ * }
+ * })
+ */
+ if (bbsm->revision != BBSM_REVISION) {
+ printk(BIOS_ERR, "Unsupported BBSM table revision: %d\n",
+ bbsm->revision);
+ return;
+ }
+
+ acpigen_write_name("BBSM");
+ acpigen_write_package(2);
+ acpigen_write_dword(bbsm->revision);
+
+ /*
+ * Emit 'Domain Type' + 'Bluetooth Bands Selection'
+ */
+ acpigen_write_package(2);
+ acpigen_write_dword(DOMAIN_TYPE_BLUETOOTH);
+ acpigen_write_dword(bbsm->bands_selection);
+
+ 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)
{
@@ -906,6 +941,7 @@ static void wifi_ssdt_write_properties(const struct device *dev, const char *sco
sar_emit_bpag(sar_limits.bpag);
sar_emit_bbfb(sar_limits.bbfb);
sar_emit_bdcm(sar_limits.bdcm);
+ sar_emit_bbsm(sar_limits.bbsm);
acpigen_write_scope_end();
} else {
printk(BIOS_ERR, "Failed to get %s Bluetooth companion ACPI path\n",
diff --git a/src/include/sar.h b/src/include/sar.h
index d09ee0dd03..71daa238b4 100644
--- a/src/include/sar.h
+++ b/src/include/sar.h
@@ -9,13 +9,14 @@
#define MAX_DENYLIST_ENTRY 16
#define MAX_DSAR_SET_COUNT 3
#define MAX_GEO_OFFSET_REVISION 3
-#define MAX_PROFILE_COUNT 10
+#define MAX_PROFILE_COUNT 11
#define MAX_SAR_REVISION 2
#define BSAR_REVISION 1
#define WBEM_REVISION 0
#define BPAG_REVISION 2
#define BBFB_REVISION 1
#define BDCM_REVISION 1
+#define BBSM_REVISION 1
#define REVISION_SIZE 1
#define SAR_REV0_CHAINS_COUNT 2
#define SAR_REV0_SUBBANDS_COUNT 5
@@ -99,6 +100,11 @@ struct bdcm_profile {
uint32_t dual_chain_mode;
} __packed;
+struct bbsm_profile {
+ uint8_t revision;
+ uint32_t bands_selection;
+} __packed;
+
struct sar_header {
char marker[SAR_STR_PREFIX_SIZE];
uint8_t version;
@@ -118,6 +124,7 @@ union wifi_sar_limits {
struct bpag_profile *bpag;
struct bbfb_profile *bbfb;
struct bdcm_profile *bdcm;
+ struct bbsm_profile *bbsm;
};
void *profile[MAX_PROFILE_COUNT];
};
diff --git a/src/vendorcode/google/chromeos/sar.c b/src/vendorcode/google/chromeos/sar.c
index bf2900b019..f6f11181d6 100644
--- a/src/vendorcode/google/chromeos/sar.c
+++ b/src/vendorcode/google/chromeos/sar.c
@@ -134,6 +134,14 @@ static size_t bdcm_table_size(const struct bdcm_profile *bdcm)
return sizeof(struct bdcm_profile);
}
+static size_t bbsm_table_size(const struct bbsm_profile *bbsm)
+{
+ if (bbsm == NULL)
+ return 0;
+
+ return sizeof(struct bbsm_profile);
+}
+
static bool valid_legacy_length(size_t bin_len)
{
if (bin_len == LEGACY_SAR_WGDS_BIN_SIZE)
@@ -190,6 +198,7 @@ static int fill_wifi_sar_limits(union wifi_sar_limits *sar_limits, const uint8_t
expected_sar_bin_size += bpag_table_size(sar_limits->bpag);
expected_sar_bin_size += bbfb_table_size(sar_limits->bbfb);
expected_sar_bin_size += bdcm_table_size(sar_limits->bdcm);
+ expected_sar_bin_size += bbsm_table_size(sar_limits->bbsm);
if (sar_bin_size != expected_sar_bin_size) {
printk(BIOS_ERR, "Invalid SAR size, expected: %zu, obtained: %zu\n",