[PATCH v12 03/10] Bluetooth: btintel: Read supported offload use cases
From: Kiran K <hidden>
Date: 2021-08-14 07:22:15
Subsystem:
bluetooth drivers, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
Read offload use cases supported by controller.
Signed-off-by: Kiran K <redacted>
Reviewed-by: Chethan T N <redacted>
Reviewed-by: Srivatsa Ravishankar <redacted>
---
* 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