Bluetooth: btintel: Create common function for firmware download

The firmware download flow for RAM SKU is same for both USB and UART
and this patch creates a common function for both driver.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 3 insertions, 73 deletions

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 6ea21d503eaf..2a55380ad730 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2013,8 +2013,6 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 	struct intel_version ver;
 	struct intel_boot_params params;
 	const struct firmware *fw;
-	const u8 *fw_ptr;
-	u32 frag_len;
 	u32 boot_param;
 	char fwname[64];
 	ktime_t calltime, delta, rettime;
@@ -2201,78 +2199,10 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
 
 	set_bit(BTUSB_DOWNLOADING, &data->flags);
 
-	/* Start the firmware download transaction with the Init fragment
-	 * represented by the 128 bytes of CSS header.
-	 */
-	err = btintel_secure_send(hdev, 0x00, 128, fw->data);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware header (%d)",
-		       hdev->name, err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of public key information from the firmware
-	 * as the PKey fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware public key (%d)",
-		       hdev->name, err);
-		goto done;
-	}
-
-	/* Send the 256 bytes of signature information from the firmware
-	 * as the Sign fragment.
-	 */
-	err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
-	if (err < 0) {
-		BT_ERR("%s: Failed to send firmware signature (%d)",
-		       hdev->name, err);
+	/* Start firmware downloading and get boot parameter */
+	err = btintel_download_firmware(hdev, fw, &boot_param);
+	if (err < 0)
 		goto done;
-	}
-
-	fw_ptr = fw->data + 644;
-	frag_len = 0;
-
-	while (fw_ptr - fw->data < fw->size) {
-		struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
-
-		/* Each SKU has a different reset parameter to use in the
-		 * HCI_Intel_Reset command and it is embedded in the firmware
-		 * data. So, instead of using static value per SKU, check
-		 * the firmware data and save it for later use.
-		 */
-		if (cmd->opcode == 0xfc0e) {
-			/* The boot parameter is the first 32-bit value
-			 * and rest of 3 octets are reserved.
-			 */
-			boot_param = get_unaligned_le32(fw_ptr + sizeof(*cmd));
-
-			bt_dev_dbg(hdev, "boot_param=0x%x", boot_param);
-		}
-
-		frag_len += sizeof(*cmd) + cmd->plen;
-
-		/* The parameter length of the secure send command requires
-		 * a 4 byte alignment. It happens so that the firmware file
-		 * contains proper Intel_NOP commands to align the fragments
-		 * as needed.
-		 *
-		 * Send set of commands with 4 byte alignment from the
-		 * firmware data buffer as a single Data fragement.
-		 */
-		if (!(frag_len % 4)) {
-			err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
-			if (err < 0) {
-				BT_ERR("%s: Failed to send firmware data (%d)",
-				       hdev->name, err);
-				goto done;
-			}
-
-			fw_ptr += frag_len;
-			frag_len = 0;
-		}
-	}
 
 	set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);