Commit c0187b0b authored by Venkata Lakshmi Narayana Gubba's avatar Venkata Lakshmi Narayana Gubba Committed by Marcel Holtmann
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Bluetooth: btqca: Add support to read FW build version for WCN3991 BTSoC 



Add support to read FW build version from debugfs node.
This info can be read from
/sys/kernel/debug/bluetooth/hci0/firmware_info

Signed-off-by: default avatarVenkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 517b6933

drivers/bluetooth/btqca.c

+54 −0
Original line number Diff line number Diff line
@@ -94,6 +94,53 @@ int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver, 
}

EXPORT_SYMBOL_GPL(qca_read_soc_version);



static int qca_read_fw_build_info(struct hci_dev *hdev)

{

	struct sk_buff *skb;

	struct edl_event_hdr *edl;

	char cmd, build_label[QCA_FW_BUILD_VER_LEN];

	int build_lbl_len, err = 0;



	bt_dev_dbg(hdev, "QCA read fw build info");



	cmd = EDL_GET_BUILD_INFO_CMD;

	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,

				&cmd, 0, HCI_INIT_TIMEOUT);

	if (IS_ERR(skb)) {

		err = PTR_ERR(skb);

		bt_dev_err(hdev, "Reading QCA fw build info failed (%d)",

			   err);

		return err;

	}



	edl = (struct edl_event_hdr *)(skb->data);

	if (!edl) {

		bt_dev_err(hdev, "QCA read fw build info with no header");

		err = -EILSEQ;

		goto out;

	}



	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||

	    edl->rtype != EDL_GET_BUILD_INFO_CMD) {

		bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,

			   edl->rtype);

		err = -EIO;

		goto out;

	}



	build_lbl_len = edl->data[0];

	if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {

		memcpy(build_label, edl->data + 1, build_lbl_len);

		*(build_label + build_lbl_len) = '\0';

	}



	hci_set_fw_info(hdev, "%s", build_label);



out:

	kfree_skb(skb);

	return err;

}



static int qca_send_reset(struct hci_dev *hdev)

{

	struct sk_buff *skb;
@@ -524,6 +571,13 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 
		return err;

	}



	if (soc_type == QCA_WCN3991) {

		/* get fw build info */

		err = qca_read_fw_build_info(hdev);

		if (err < 0)

			return err;

	}



	bt_dev_info(hdev, "QCA setup on UART is completed");



	return 0;

drivers/bluetooth/btqca.h

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
#define EDL_PATCH_CMD_LEN		(1)

#define EDL_PATCH_VER_REQ_CMD		(0x19)

#define EDL_PATCH_TLV_REQ_CMD		(0x1E)

#define EDL_GET_BUILD_INFO_CMD		(0x20)

#define EDL_NVM_ACCESS_SET_REQ_CMD	(0x01)

#define MAX_SIZE_PER_TLV_SEGMENT	(243)

#define QCA_PRE_SHUTDOWN_CMD		(0xFC08)