int s3c_camif_release(struct inode *inode, struct file *file)
{
camif_cfg_t *cfg = s3c_camif_get_fimc_object(MINOR(inode->i_rdev));
if (cfg->dma_type & CAMIF_PREVIEW) {
cfg->cis->status &= ~PWANT2START;
cfg->cis->status |= P_NOT_WORKING;
s3c_camif_stop_preview(cfg);
up((struct semaphore *) &cfg->cis->lock);
} else {
cfg->cis->status &= ~CWANT2START;
s3c_camif_stop_capture(cfg);
}
video_exclusive_release(inode, file);
if (cfg->cis->sensor == NULL)
DPRINTK("A CIS sensor for MSDMA has been used\n");
else
cfg->cis->sensor->driver->command(cfg->cis->sensor, USER_EXIT, NULL);
cfg->cis->user--;
cfg->status = CAMIF_STOPPED;
return 0;
}
/* release the camera */
static int zr364xx_release(struct inode *inode, struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct zr364xx_camera *cam;
struct usb_device *udev;
int i, err;
DBG("zr364xx_release");
if (vdev == NULL)
return -ENODEV;
cam = video_get_drvdata(vdev);
udev = cam->udev;
mutex_lock(&cam->lock);
for (i = 0; i < 2; i++) {
err =
send_control_msg(udev, 1, init[cam->method][i].value,
0, init[i][cam->method].bytes,
init[cam->method][i].size);
if (err < 0) {
info("error during release sequence");
mutex_unlock(&cam->lock);
return err;
}
}
file->private_data = NULL;
video_exclusive_release(inode, file);
/* Added some delay here, since opening/closing the camera quickly,
* like Ekiga does during its startup, can crash the webcam
*/
mdelay(100);
mutex_unlock(&cam->lock);
return 0;
}
