static int fimc_cap_s_input(struct file *file, void *priv,
unsigned int i)
{
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
struct s3c_platform_fimc *pdata = fimc->pdata;
int ret;
if (fimc_capture_active(ctx->fimc_dev))
return -EBUSY;
if (mutex_lock_interruptible(&fimc->lock))
return -ERESTARTSYS;
if (i >= FIMC_MAX_CAMIF_CLIENTS || !pdata->isp_info[i]) {
ret = -EINVAL;
goto si_unlock;
}
if (fimc->vid_cap.sd) {
ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
if (ret)
err("s_power failed: %d", ret);
}
/* Release the attached sensor subdevice. */
fimc_subdev_unregister(fimc);
ret = fimc_isp_subdev_init(fimc, i);
si_unlock:
mutex_unlock(&fimc->lock);
return ret;
}
static int fimc_cap_s_input(struct file *file, void *priv,
unsigned int i)
{
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
struct s5p_platform_fimc *pdata = fimc->pdata;
if (fimc_capture_active(ctx->fimc_dev))
return -EBUSY;
if (i >= pdata->num_clients)
return -EINVAL;
if (fimc->vid_cap.sd) {
int ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
if (ret)
err("s_power failed: %d", ret);
clk_disable(fimc->clock[CLK_CAM]);
}
/* Release the attached sensor subdevice. */
fimc_subdev_unregister(fimc);
return fimc_isp_subdev_init(fimc, i);
}
static int fimc_capture_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
int ret = 0;
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
/* Return if the corresponding video mem2mem node is already opened. */
if (fimc_m2m_active(fimc))
return -EBUSY;
if (mutex_lock_interruptible(&fimc->lock))
return -ERESTARTSYS;
if (++fimc->vid_cap.refcnt == 1) {
ret = fimc_isp_subdev_init(fimc, -1);
if (ret) {
fimc->vid_cap.refcnt--;
ret = -EIO;
}
}
file->private_data = fimc->vid_cap.ctx;
mutex_unlock(&fimc->lock);
return ret;
}
