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Bluetooth: Support HCI_QUIRK_RAW_DEVICE for hci_vhci driver

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This adds support for configuring the hci_vhci virtual controllers
as a raw-only device using HCI_QUIRK_RAW_DEVICE. This is useful for
testing the kernel internal infrastructure.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-07-03 01:35:10 +02:00
parent 73d1df2a7a
commit 82a30cfcb8
1 changed files with 21 additions and 9 deletions
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30
drivers/bluetooth/hci_vhci.c
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@ -40,7 +40,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#define VERSION "1.4"
#define VERSION "1.5"
static bool amp;
@ -95,10 +95,21 @@ static int vhci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
return 0;
}
static int vhci_create_device(struct vhci_data *data, __u8 dev_type)
static int vhci_create_device(struct vhci_data *data, __u8 opcode)
{
struct hci_dev *hdev;
struct sk_buff *skb;
__u8 dev_type;
/* bits 0-1 are dev_type (BR/EDR or AMP) */
dev_type = opcode & 0x03;
if (dev_type != HCI_BREDR && dev_type != HCI_AMP)
return -EINVAL;
/* bits 2-6 are reserved (must be zero) */
if (opcode & 0x7c)
return -EINVAL;
skb = bt_skb_alloc(4, GFP_KERNEL);
if (!skb)
@ -121,6 +132,10 @@ static int vhci_create_device(struct vhci_data *data, __u8 dev_type)
hdev->flush = vhci_flush;
hdev->send = vhci_send_frame;
/* bit 7 is for raw device */
if (opcode & 0x80)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
if (hci_register_dev(hdev) < 0) {
BT_ERR("Can't register HCI device");
hci_free_dev(hdev);
@ -132,7 +147,7 @@ static int vhci_create_device(struct vhci_data *data, __u8 dev_type)
bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
*skb_put(skb, 1) = 0xff;
*skb_put(skb, 1) = dev_type;
*skb_put(skb, 1) = opcode;
put_unaligned_le16(hdev->id, skb_put(skb, 2));
skb_queue_tail(&data->readq, skb);
@ -146,7 +161,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
{
size_t len = iov_length(iov, count);
struct sk_buff *skb;
__u8 pkt_type, dev_type;
__u8 pkt_type, opcode;
unsigned long i;
int ret;
@ -190,7 +205,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
cancel_delayed_work_sync(&data->open_timeout);
dev_type = *((__u8 *) skb->data);
opcode = *((__u8 *) skb->data);
skb_pull(skb, 1);
if (skb->len > 0) {
@ -200,10 +215,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
kfree_skb(skb);
if (dev_type != HCI_BREDR && dev_type != HCI_AMP)
return -EINVAL;
ret = vhci_create_device(data, dev_type);
ret = vhci_create_device(data, opcode);
break;
default: