[PATCH 2/2] Bluetooth: btrtl: Add firmware version print

[Alex Lu]

From: Alex Lu <alex...@realsil.com.cn>

This patch is used to print fw version for debug convenience

Signed-off-by: Alex Lu <alex...@realsil.com.cn>
---
 drivers/bluetooth/btrtl.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index b7487ab99eed..7219eb98d02d 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -151,6 +151,8 @@ static const struct id_table ic_id_table[] = {
          .cfg_name = "rtl_bt/rtl8822b_config" },
        };
 
+static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev);
+
 static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
                                             u8 hci_ver, u8 hci_bus)
 {
@@ -368,6 +370,8 @@ static int rtl_download_firmware(struct hci_dev *hdev,
        int frag_len = RTL_FRAG_LEN;
        int ret = 0;
        int i;
+       struct sk_buff *skb;
+       struct hci_rp_read_local_version *rp;
 
        dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
        if (!dl_cmd)
@@ -406,6 +410,18 @@ static int rtl_download_firmware(struct hci_dev *hdev,
                data += RTL_FRAG_LEN;
        }
 
+       skb = btrtl_read_local_version(hdev);
+       if (IS_ERR(skb)) {
+               ret = PTR_ERR(skb);
+               rtl_dev_err(hdev, "read local version failed");
+               goto out;
+       }
+
+       rp = (struct hci_rp_read_local_version *)skb->data;
+       rtl_dev_info(hdev, "rtl: fw version 0x%04x%04x",
+                    __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
+       kfree_skb(skb);
+
 out:
        kfree(dl_cmd);
        return ret;
-- 
2.21.0