[PATCH v11 03/10] Bluetooth: btintel: Read supported offload usecases

@@ -1272,6 +1272,36 @@ int btintel_set_debug_features(struct hci_dev *hdev,
 }
 EXPORT_SYMBOL_GPL(btintel_set_debug_features);
 
+int btintel_configure_offload_usecases(struct hci_dev *hdev)
+{
+	struct sk_buff *skb;
+	int err = 0;
+	struct intel_offload_usecases *usecases;
+
+	skb = __hci_cmd_sync(hdev, 0xfc86, 0, NULL, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		bt_dev_err(hdev, "Reading offload usecases failed (%ld)",
+			   PTR_ERR(skb));
+		return PTR_ERR(skb);
+	}
+
+	if (skb->len < sizeof(*usecases)) {
+		err = -EIO;
+		goto error;
+	}
+
+	usecases = (void *)skb->data;
+
+	if (usecases->status) {
+		err = -bt_to_errno(skb->data[0]);
+		goto error;
+	}
+error:
+	kfree_skb(skb);
+	return err;
+}
+EXPORT_SYMBOL_GPL(btintel_configure_offload_usecases);
+
 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
 MODULE_VERSION(VERSION);

@@ -132,6 +132,11 @@ struct intel_debug_features {
 	__u8    page1[16];
 } __packed;
 
+struct intel_offload_usecases {
+	__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)

@@ -175,6 +180,7 @@ int btintel_read_debug_features(struct hci_dev *hdev,
 				struct intel_debug_features *features);
 int btintel_set_debug_features(struct hci_dev *hdev,
 			       const struct intel_debug_features *features);
+int btintel_configure_offload_usecases(struct hci_dev *hdev);
 #else
 
 static inline int btintel_check_bdaddr(struct hci_dev *hdev)

@@ -307,4 +313,8 @@ static inline int btintel_set_debug_features(struct hci_dev *hdev,
 	return -EOPNOTSUPP;
 }
 
+static int btintel_configure_offload_usecases(struct hci_dev *hdev)
+{
+	return -EOPNOTSUPP;
+}
 #endif

@@ -3023,6 +3023,9 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev)
 		btintel_set_debug_features(hdev, &features);
 	}
 
+	/* Read supported usecases and set callbacks to fetch datapath id */
+	btintel_configure_offload_usecases(hdev);
+
 	/* Read the Intel version information after loading the FW  */
 	err = btintel_read_version_tlv(hdev, &version);
 	if (err)