static void au0828_usb_disconnect(struct usb_interface *interface)
{
struct au0828_dev *dev = usb_get_intfdata(interface);
dprintk(1, "%s()\n", __func__);
/* there is a small window after disconnect, before
dev->usbdev is NULL, for poll (e.g: IR) try to access
the device and fill the dmesg with error messages.
Set the status so poll routines can check and avoid
access after disconnect.
*/
dev->dev_state = DEV_DISCONNECTED;
au0828_rc_unregister(dev);
/* Digital TV */
au0828_dvb_unregister(dev);
usb_set_intfdata(interface, NULL);
mutex_lock(&dev->mutex);
dev->usbdev = NULL;
mutex_unlock(&dev->mutex);
#ifdef CONFIG_BACKPORT_VIDEO_AU0828_V4L2
if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
au0828_analog_unregister(dev);
v4l2_device_disconnect(&dev->v4l2_dev);
v4l2_device_put(&dev->v4l2_dev);
return;
}
#endif
au0828_usb_release(dev);
}
/* The user yanked out the cable... */
static void usb_pwc_disconnect(struct usb_interface *intf)
{
struct v4l2_device *v = usb_get_intfdata(intf);
struct pwc_device *pdev = container_of(v, struct pwc_device, v4l2_dev);
mutex_lock(&pdev->vb_queue_lock);
mutex_lock(&pdev->v4l2_lock);
/* No need to keep the urbs around after disconnection */
if (pdev->vb_queue.streaming)
pwc_isoc_cleanup(pdev);
pdev->udev = NULL;
pwc_cleanup_queued_bufs(pdev);
v4l2_device_disconnect(&pdev->v4l2_dev);
video_unregister_device(&pdev->vdev);
mutex_unlock(&pdev->v4l2_lock);
mutex_unlock(&pdev->vb_queue_lock);
#ifdef CONFIG_USB_PWC_INPUT_EVDEV
if (pdev->button_dev)
input_unregister_device(pdev->button_dev);
#endif
v4l2_device_put(&pdev->v4l2_dev);
}
/******************************************************************************
*
* cpia2_disconnect
*
*****************************************************************************/
static void cpia2_usb_disconnect(struct usb_interface *intf)
{
struct camera_data *cam = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
DBG("Stopping stream\n");
cpia2_usb_stream_stop(cam);
mutex_lock(&cam->v4l2_lock);
DBG("Unregistering camera\n");
cpia2_unregister_camera(cam);
v4l2_device_disconnect(&cam->v4l2_dev);
mutex_unlock(&cam->v4l2_lock);
v4l2_device_put(&cam->v4l2_dev);
if(cam->buffers) {
DBG("Wakeup waiting processes\n");
cam->curbuff->status = FRAME_READY;
cam->curbuff->length = 0;
wake_up_interruptible(&cam->wq_stream);
}
DBG("Releasing interface\n");
usb_driver_release_interface(&cpia2_driver, intf);
LOG("CPiA2 camera disconnected.\n");
}
/*
* si470x_usb_driver_disconnect - disconnect the device
*/
static void si470x_usb_driver_disconnect(struct usb_interface *intf)
{
struct si470x_device *radio = usb_get_intfdata(intf);
mutex_lock(&radio->lock);
v4l2_device_disconnect(&radio->v4l2_dev);
video_unregister_device(&radio->videodev);
usb_set_intfdata(intf, NULL);
mutex_unlock(&radio->lock);
v4l2_device_put(&radio->v4l2_dev);
}
void usbtv_video_free(struct usbtv *usbtv)
{
mutex_lock(&usbtv->vb2q_lock);
mutex_lock(&usbtv->v4l2_lock);
usbtv_stop(usbtv);
video_unregister_device(&usbtv->vdev);
v4l2_device_disconnect(&usbtv->v4l2_dev);
mutex_unlock(&usbtv->v4l2_lock);
mutex_unlock(&usbtv->vb2q_lock);
v4l2_device_put(&usbtv->v4l2_dev);
}
static void au0828_usb_disconnect(struct usb_interface *interface)
{
struct au0828_dev *dev = usb_get_intfdata(interface);
dprintk(1, "%s()\n", __func__);
au0828_rc_unregister(dev);
/* Digital TV */
au0828_dvb_unregister(dev);
usb_set_intfdata(interface, NULL);
mutex_lock(&dev->mutex);
dev->usbdev = NULL;
mutex_unlock(&dev->mutex);
#ifdef CPTCFG_VIDEO_AU0828_V4L2
if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
au0828_analog_unregister(dev);
v4l2_device_disconnect(&dev->v4l2_dev);
v4l2_device_put(&dev->v4l2_dev);
return;
}
#endif
au0828_usb_release(dev);
}
