Add support to read FW build version for WCN3991 BTSoC
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@xxxxxxxxxxxxxx>
---
drivers/bluetooth/btqca.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++
drivers/bluetooth/btqca.h | 3 +++
2 files changed, 60 insertions(+)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index ce9dcff..dfd7ff7 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -101,6 +101,56 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
}
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;
+ int err = 0;
+ char build_label[QCA_FW_BUILD_VER_LEN];
+ int build_lbl_len;
+
+ 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, HCI_EV_VENDOR, 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];
+ memcpy(build_label, &edl->data[1], build_lbl_len);
+ *(build_label + build_lbl_len) = '\0';
+
+ bt_dev_info(hdev, "BT SoC FW Build info: %s", build_label);
+
+out:
+ kfree_skb(skb);
+ if (err)
+ bt_dev_err(hdev, "QCA read fw build info failed (%d)", err);
+
+ return err;
+}
+
static int qca_send_reset(struct hci_dev *hdev)
{
struct sk_buff *skb;
@@ -520,6 +570,13 @@ 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;
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index d81b74c..375c7fc 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -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)
@@ -34,6 +35,8 @@
#define QCA_HCI_CC_OPCODE 0xFC00
#define QCA_HCI_CC_SUCCESS 0x00
+#define QCA_FW_BUILD_VER_LEN 255
+
enum qca_baudrate {
QCA_BAUDRATE_115200 = 0,
QCA_BAUDRATE_57600,
--
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