Bluetooth: Support HCI_QUIRK_EXTERNAL_CONFIG for hci_vhci driver

This adds support for configuring the hci_vhci virtual controllers
to require a setup stage using HCI_QUIRK_EXTERNAL_CONFIG. With this
option the virtual controller will start out as unconfigured.

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

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index aa446c7eb7e5..5bb5872ffee6 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -107,8 +107,8 @@ static int vhci_create_device(struct vhci_data *data, __u8 opcode)
         if (dev_type != HCI_BREDR && dev_type != HCI_AMP)
                 return -EINVAL;
 
-        /* bits 2-6 are reserved (must be zero) */
-        if (opcode & 0x7c)
+        /* bits 2-5 are reserved (must be zero) */
+        if (opcode & 0x3c)
                 return -EINVAL;
 
         skb = bt_skb_alloc(4, GFP_KERNEL);
@@ -132,6 +132,10 @@ static int vhci_create_device(struct vhci_data *data, __u8 opcode)
         hdev->flush = vhci_flush;
         hdev->send  = vhci_send_frame;
 
+        /* bit 6 is for external configuration */
+        if (opcode & 0x40)
+                set_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks);
+
         /* bit 7 is for raw device */
         if (opcode & 0x80)
                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);