static int fimc_lite_resume(struct device *dev)
{
struct fimc_lite *fimc = dev_get_drvdata(dev);
struct flite_buffer *buf;
unsigned long flags;
int i;
spin_lock_irqsave(&fimc->slock, flags);
if (!test_and_clear_bit(ST_LPM, &fimc->state) ||
!test_bit(ST_FLITE_IN_USE, &fimc->state)) {
spin_unlock_irqrestore(&fimc->slock, flags);
return 0;
}
flite_hw_reset(fimc);
spin_unlock_irqrestore(&fimc->slock, flags);
if (!test_and_clear_bit(ST_FLITE_SUSPENDED, &fimc->state))
return 0;
INIT_LIST_HEAD(&fimc->active_buf_q);
fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, false);
fimc_lite_hw_init(fimc);
clear_bit(ST_FLITE_SUSPENDED, &fimc->state);
for (i = 0; i < fimc->reqbufs_count; i++) {
if (list_empty(&fimc->pending_buf_q))
break;
buf = fimc_lite_pending_queue_pop(fimc);
buffer_queue(&buf->vb);
}
return 0;
}
int fimc_capture_resume(struct fimc_dev *fimc)
{
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
struct fimc_vid_buffer *buf;
int i;
if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
return 0;
INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
vid_cap->buf_index = 0;
fimc_pipeline_initialize(fimc, &fimc->vid_cap.vfd->entity,
false);
fimc_init_capture(fimc);
clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
for (i = 0; i < vid_cap->reqbufs_count; i++) {
if (list_empty(&vid_cap->pending_buf_q))
break;
buf = fimc_pending_queue_pop(vid_cap);
buffer_queue(&buf->vb);
}
return 0;
}
static int fimc_capture_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
int ret = -EBUSY;
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
if (mutex_lock_interruptible(&fimc->lock))
return -ERESTARTSYS;
if (fimc_m2m_active(fimc))
goto unlock;
set_bit(ST_CAPT_BUSY, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
goto unlock;
ret = v4l2_fh_open(file);
if (ret) {
pm_runtime_put(&fimc->pdev->dev);
goto unlock;
}
if (++fimc->vid_cap.refcnt == 1) {
ret = fimc_pipeline_initialize(&fimc->pipeline,
&fimc->vid_cap.vfd->entity, true);
if (!ret && !fimc->vid_cap.user_subdev_api)
ret = fimc_capture_set_default_format(fimc);
if (!ret)
ret = fimc_capture_ctrls_create(fimc);
if (ret < 0) {
clear_bit(ST_CAPT_BUSY, &fimc->state);
pm_runtime_put_sync(&fimc->pdev->dev);
fimc->vid_cap.refcnt--;
v4l2_fh_release(file);
}
}
unlock:
mutex_unlock(&fimc->lock);
return ret;
}
static int fimc_lite_open(struct file *file)
{
struct fimc_lite *fimc = video_drvdata(file);
int ret;
if (mutex_lock_interruptible(&fimc->lock))
return -ERESTARTSYS;
set_bit(ST_FLITE_IN_USE, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
goto done;
ret = platform_sysmmu_on(&fimc->pdev->dev);
if (ret < 0)
goto err_pm;
ret = v4l2_fh_open(file);
if (ret < 0)
goto done;
if (++fimc->ref_count == 1 && fimc->out_path == FIMC_IO_DMA) {
ret = fimc_pipeline_initialize(&fimc->pipeline,
&fimc->vfd->entity, true);
if (ret < 0) {
pm_runtime_put_sync(&fimc->pdev->dev);
fimc->ref_count--;
v4l2_fh_release(file);
clear_bit(ST_FLITE_IN_USE, &fimc->state);
}
fimc_lite_clear_event_counters(fimc);
}
err_pm:
pm_runtime_put(&fimc->pdev->dev);
done:
mutex_unlock(&fimc->lock);
return ret;
}
static int fimc_capture_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
int ret = v4l2_fh_open(file);
if (ret)
return ret;
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;
set_bit(ST_CAPT_BUSY, &fimc->state);
pm_runtime_get_sync(&fimc->pdev->dev);
if (++fimc->vid_cap.refcnt == 1) {
ret = fimc_pipeline_initialize(fimc,
&fimc->vid_cap.vfd->entity, true);
if (ret < 0) {
dev_err(&fimc->pdev->dev,
"Video pipeline initialization failed\n");
pm_runtime_put_sync(&fimc->pdev->dev);
fimc->vid_cap.refcnt--;
v4l2_fh_release(file);
clear_bit(ST_CAPT_BUSY, &fimc->state);
return ret;
}
ret = fimc_capture_ctrls_create(fimc);
if (!ret && !fimc->vid_cap.user_subdev_api)
ret = fimc_capture_set_default_format(fimc);
}
return ret;
}
