/* open the camera */
static int zr364xx_open(struct inode *inode, struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct zr364xx_camera *cam = video_get_drvdata(vdev);
struct usb_device *udev = cam->udev;
int i, err;
DBG("zr364xx_open");
cam->skip = 2;
err = video_exclusive_open(inode, file);
if (err < 0)
return err;
if (!cam->framebuf) {
cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES);
if (!cam->framebuf) {
info("vmalloc_32 failed!");
return -ENOMEM;
}
}
mutex_lock(&cam->lock);
for (i = 0; init[cam->method][i].size != -1; i++) {
err =
send_control_msg(udev, 1, init[cam->method][i].value,
0, init[cam->method][i].bytes,
init[cam->method][i].size);
if (err < 0) {
info("error during open sequence: %d", i);
mutex_unlock(&cam->lock);
return err;
}
}
file->private_data = vdev;
/* 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;
}
int s3c_camif_open(struct inode *inode, struct file *file)
{
int err;
camif_cfg_t *cfg = s3c_camif_get_fimc_object(MINOR(inode->i_rdev));
if (!cfg->cis) {
printk(KERN_ERR "An object for a CIS is missing\n");
printk(KERN_ERR "Using msdma_input as a default CIS data structure\n");
cfg->cis = &msdma_input;
/* global lock for both Codec and Preview */
sema_init((struct semaphore *) &cfg->cis->lock, 1);
cfg->cis->status |= P_NOT_WORKING;
}
if (cfg->dma_type & CAMIF_PREVIEW) {
if (cfg->dma_type & CAMIF_PREVIEW)
cfg->cis->status &= ~P_NOT_WORKING;
up((struct semaphore *) &cfg->cis->lock);
}
err = video_exclusive_open(inode, file);
cfg->cis->user++;
cfg->status = CAMIF_STOPPED;
if (err < 0)
return err;
if (file->f_flags & O_NONCAP) {
printk(KERN_ERR "Don't support non-capturing open\n");
return 0;
}
file->private_data = cfg;
s3c_camif_init_sensor(cfg);
return 0;
}
