Read offload use cases supported by controller.
Signed-off-by: Kiran K <kiran.k@xxxxxxxxx>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@xxxxxxxxx>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@xxxxxxxxx>
---
* changes in v12:
- s/usecase/use_case/g
* changes in v11:
- Remove Kconfig related changes
* changes in v10:
- restructure patch to have definition and call of callaback in the
same patch
* changes in v9:
- define a separate patch for core changes
drivers/bluetooth/btintel.c | 32 ++++++++++++++++++++++++++++++++
drivers/bluetooth/btintel.h | 5 +++++
2 files changed, 37 insertions(+)
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index f1705b46fc88..fd7afaf42f5f 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -2083,6 +2083,35 @@ static int btintel_prepare_fw_download_tlv(struct hci_dev *hdev,
return err;
}
+static int btintel_configure_offload(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ int err = 0;
+ struct intel_offload_use_cases *use_cases;
+
+ skb = __hci_cmd_sync(hdev, 0xfc86, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "Reading offload use cases failed (%ld)",
+ PTR_ERR(skb));
+ return PTR_ERR(skb);
+ }
+
+ if (skb->len < sizeof(*use_cases)) {
+ err = -EIO;
+ goto error;
+ }
+
+ use_cases = (void *)skb->data;
+
+ if (use_cases->status) {
+ err = -bt_to_errno(skb->data[0]);
+ goto error;
+ }
+error:
+ kfree_skb(skb);
+ return err;
+}
+
static int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
struct intel_version_tlv *ver)
{
@@ -2125,6 +2154,9 @@ static int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
*/
btintel_load_ddc_config(hdev, ddcname);
+ /* Read supported use cases and set callbacks to fetch datapath id */
+ btintel_configure_offload(hdev);
+
/* Read the Intel supported features and if new exception formats
* supported, need to load the additional DDC config to enable.
*/
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index aa64072bbe68..609d9d532d09 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -132,6 +132,11 @@ struct intel_debug_features {
__u8 page1[16];
} __packed;
+struct intel_offload_use_cases {
+ __u8 status;
+ __u8 preset[8];
+} __packed;
+
#define INTEL_HW_PLATFORM(cnvx_bt) ((u8)(((cnvx_bt) & 0x0000ff00) >> 8))
#define INTEL_HW_VARIANT(cnvx_bt) ((u8)(((cnvx_bt) & 0x003f0000) >> 16))
#define INTEL_CNVX_TOP_TYPE(cnvx_top) ((cnvx_top) & 0x00000fff)
--
2.17.1
