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Bluetooth: btbcm: Read controller features during configuration 

Read the Broadcom specific controller features during configuration and
print them for informational purposes.

  < HCI Command: Broadcom Read Controller Features (0x3f|0x006e) plen 0
  > HCI Event: Command Complete (0x0e) plen 12
        Broadcom Read Controller Features (0x3f|0x006e) ncmd 1
          Status: Success (0x00)
          Features: 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00
            Multi-AV transport bandwidth reducer
            WBS SBC
            FW LC-PLC

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
This commit is contained in:
Marcel Holtmann 2017-06-10 14:33:16 +02:00 committed by Szymon Janc
parent 313f6888c8
commit 4284ecbeda
1 changed files with 36 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/bluetooth/btbcm.c
View File

@ -246,6 +246,27 @@ static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
return skb;
}
static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
{
struct sk_buff *skb;
skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
BT_ERR("%s: BCM: Read controller features failed (%ld)",
hdev->name, PTR_ERR(skb));
return skb;
}
if (skb->len != 9) {
BT_ERR("%s: BCM: Controller features length mismatch",
hdev->name);
kfree_skb(skb);
return ERR_PTR(-EIO);
}
return skb;
}
static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
{
struct sk_buff *skb;
@ -417,6 +438,14 @@ int btbcm_setup_patchram(struct hci_dev *hdev)
BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
kfree_skb(skb);
/* Read Controller Features */
skb = btbcm_read_controller_features(hdev);
if (IS_ERR(skb))
return PTR_ERR(skb);
BT_INFO("%s: BCM: features 0x%2.2x", hdev->name, skb->data[1]);
kfree_skb(skb);
/* Read Local Name */
skb = btbcm_read_local_name(hdev);
if (IS_ERR(skb))
@ -540,6 +569,13 @@ int btbcm_setup_apple(struct hci_dev *hdev)
kfree_skb(skb);
}
/* Read Controller Features */
skb = btbcm_read_controller_features(hdev);
if (!IS_ERR(skb)) {
BT_INFO("%s: BCM: features 0x%2.2x", hdev->name, skb->data[1]);
kfree_skb(skb);
}
/* Read Local Name */
skb = btbcm_read_local_name(hdev);
if (!IS_ERR(skb)) {