[PATCH] Bluetooth: btusb: Apply Intel device configuration routine

[Tedd Ho-Jeong An <tedd.an@intel.com>]

From: Tedd Ho-Jeong An <tedd.an@intel.com>

This patch adds support to apply the device configuration parameters
(DDC) after firwmare downloading on Intel 8265 device.

This is optional configuration parameters and good to have.
So, even if it fails to apply it, it is not necessary to fail the
setup.

The file format is same as previous firmware patch (.bseq) and
this is only applicable to Intel 8265 device.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
---
 drivers/bluetooth/btusb.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index d21f3b4..27cd2bf 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2644,6 +2644,40 @@ done:
 
 	clear_bit(BTUSB_BOOTLOADER, &data->flags);
 
+	/* Once the device is running in operational mode, it needs to apply
+	 * the configuration parameters to the device.
+	 */
+	snprintf(fwname, sizeof(fwname), "intel/ibt-11.bseq");
+
+	/* Device can work without this configuration so even if it fails
+	 * to load the file, no need to fail the setup
+	 */
+	err = request_firmware_direct(&fw, fwname, &hdev->dev);
+	if (err < 0) {
+		BT_INFO("%s: WARNING: unable to load configuration file (%d)",
+			hdev->name, err);
+		return 0;
+	}
+
+	BT_INFO("%s: Found device configuration file: %s", hdev->name, fwname);
+
+	fw_ptr = fw->data;
+	while (fw->size > fw_ptr - fw->data) {
+		int ignore;
+
+		err = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
+						 &ignore);
+		if (err < 0) {
+			BT_INFO("%s: WARNING: failed to send configuration(%d)",
+				hdev->name, err);
+			release_firmware(fw);
+			return 0;
+		}
+	}
+	release_firmware(fw);
+
+	BT_INFO("%s: Device configuration completed", hdev->name);
+
 	return 0;
 }
 
-- 
2.1.0