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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: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Venkata Lakshmi Narayana Gubba 2020-12-08 17:25:29 +05:30 committed by Marcel Holtmann
parent 517b693351
commit c0187b0bd3
2 changed files with 55 additions and 0 deletions
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54
drivers/bluetooth/btqca.c
View File

@ -94,6 +94,53 @@ out:
}
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;

1
drivers/bluetooth/btqca.h
View File

@ -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)