Bluetooth: hci_bcm: Enable support for set_diag driver callback

The set_diag driver callback allows enabling and disabling the vendor
specific diagnostic information. Since Broadcom chips have support for
a dedicated LM_DIAG channel, hook it up accordingly.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 1425bf5..645e66e 100644 (file)
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -249,6 +249,29 @@ static inline int bcm_request_irq(struct bcm_data *bcm) { return 0; }
 static inline int bcm_setup_sleep(struct hci_uart *hu) { return 0; }
 #endif
 
+static int bcm_set_diag(struct hci_dev *hdev, bool enable)
+{
+       struct hci_uart *hu = hci_get_drvdata(hdev);
+       struct bcm_data *bcm = hu->priv;
+       struct sk_buff *skb;
+
+       if (!test_bit(HCI_RUNNING, &hdev->flags))
+               return -ENETDOWN;
+
+       skb = bt_skb_alloc(3, GFP_KERNEL);
+       if (IS_ERR(skb))
+               return PTR_ERR(skb);
+
+       *skb_put(skb, 1) = BCM_LM_DIAG_PKT;
+       *skb_put(skb, 1) = 0xf0;
+       *skb_put(skb, 1) = enable;
+
+       skb_queue_tail(&bcm->txq, skb);
+       hci_uart_tx_wakeup(hu);
+
+       return 0;
+}
+
 static int bcm_open(struct hci_uart *hu)
 {
        struct bcm_data *bcm;
@@ -342,6 +365,7 @@ static int bcm_setup(struct hci_uart *hu)
 
        bt_dev_dbg(hu->hdev, "hu %p", hu);
 
+       hu->hdev->set_diag = bcm_set_diag;
        hu->hdev->set_bdaddr = btbcm_set_bdaddr;
 
        err = btbcm_initialize(hu->hdev, fw_name, sizeof(fw_name));