Replace some ioctl, file and video buffer queue operation handlers
with the videobuf2 helpers. This allows to get rid of significant
amount of boilerplate.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/platform/s5p-fimc/fimc-lite.c | 170 +++++++--------------------
1 file changed, 45 insertions(+), 125 deletions(-)
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index 40733e0..187d9f6 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -425,24 +425,12 @@ static void buffer_queue(struct vb2_buffer *vb)
spin_unlock_irqrestore(&fimc->slock, flags);
}
-static void fimc_lock(struct vb2_queue *vq)
-{
- struct fimc_lite *fimc = vb2_get_drv_priv(vq);
- mutex_lock(&fimc->lock);
-}
-
-static void fimc_unlock(struct vb2_queue *vq)
-{
- struct fimc_lite *fimc = vb2_get_drv_priv(vq);
- mutex_unlock(&fimc->lock);
-}
-
static const struct vb2_ops fimc_lite_qops = {
.queue_setup = queue_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
- .wait_prepare = fimc_unlock,
- .wait_finish = fimc_lock,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
.start_streaming = start_streaming,
.stop_streaming = stop_streaming,
};
@@ -467,99 +455,69 @@ static int fimc_lite_open(struct file *file)
mutex_lock(&fimc->lock);
if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) {
ret = -EBUSY;
- goto done;
+ goto unlock;
}
set_bit(ST_FLITE_IN_USE, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
- goto done;
+ goto unlock;
ret = v4l2_fh_open(file);
if (ret < 0)
- goto done;
+ goto err_pm;
- if (++fimc->ref_count == 1 &&
- atomic_read(&fimc->out_path) == FIMC_IO_DMA) {
- ret = fimc_pipeline_call(fimc, open, &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);
- }
+ if (!v4l2_fh_is_singular_file(file) ||
+ atomic_read(&fimc->out_path) != FIMC_IO_DMA)
+ goto unlock;
+ ret = fimc_pipeline_call(fimc, open, &fimc->pipeline,
+ me, true);
+ if (!ret) {
fimc_lite_clear_event_counters(fimc);
+ fimc->ref_count++;
+ goto unlock;
}
-done:
+
+ v4l2_fh_release(file);
+err_pm:
+ pm_runtime_put_sync(&fimc->pdev->dev);
+ clear_bit(ST_FLITE_IN_USE, &fimc->state);
+unlock:
mutex_unlock(&fimc->lock);
mutex_unlock(&me->parent->graph_mutex);
return ret;
}
-static int fimc_lite_close(struct file *file)
+static int fimc_lite_release(struct file *file)
{
struct fimc_lite *fimc = video_drvdata(file);
- int ret;
mutex_lock(&fimc->lock);
- if (--fimc->ref_count == 0 &&
+ if (v4l2_fh_is_singular_file(file) &&
atomic_read(&fimc->out_path) == FIMC_IO_DMA) {
clear_bit(ST_FLITE_IN_USE, &fimc->state);
fimc_lite_stop_capture(fimc, false);
fimc_pipeline_call(fimc, close, &fimc->pipeline);
- clear_bit(ST_FLITE_SUSPENDED, &fimc->state);
+ fimc->ref_count--;
}
+ vb2_fop_release(file);
pm_runtime_put(&fimc->pdev->dev);
+ clear_bit(ST_FLITE_SUSPENDED, &fimc->state);
- if (fimc->ref_count == 0)
- vb2_queue_release(&fimc->vb_queue);
-
- ret = v4l2_fh_release(file);
-
- mutex_unlock(&fimc->lock);
- return ret;
-}
-
-static unsigned int fimc_lite_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct fimc_lite *fimc = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return POLL_ERR;
-
- ret = vb2_poll(&fimc->vb_queue, file, wait);
- mutex_unlock(&fimc->lock);
-
- return ret;
-}
-
-static int fimc_lite_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct fimc_lite *fimc = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- ret = vb2_mmap(&fimc->vb_queue, vma);
mutex_unlock(&fimc->lock);
-
- return ret;
+ return 0;
}
static const struct v4l2_file_operations fimc_lite_fops = {
.owner = THIS_MODULE,
.open = fimc_lite_open,
- .release = fimc_lite_close,
- .poll = fimc_lite_poll,
+ .release = fimc_lite_release,
+ .poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2,
- .mmap = fimc_lite_mmap,
+ .mmap = vb2_fop_mmap,
};
/*
@@ -720,7 +678,6 @@ static int fimc_lite_try_fmt_mplane(struct file *file, void *fh,
struct v4l2_format *f)
{
struct fimc_lite *fimc = video_drvdata(file);
-
return fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, NULL);
}
@@ -812,12 +769,15 @@ static int fimc_lite_streamon(struct file *file, void *priv,
return ret;
ret = fimc_pipeline_validate(fimc);
- if (ret) {
- media_entity_pipeline_stop(entity);
- return ret;
- }
+ if (ret < 0)
+ goto err_p_stop;
- return vb2_streamon(&fimc->vb_queue, type);
+ ret = vb2_ioctl_streamon(file, priv, type);
+ if (!ret)
+ return ret;
+err_p_stop:
+ media_entity_pipeline_stop(entity);
+ return 0;
}
static int fimc_lite_streamoff(struct file *file, void *priv,
@@ -826,7 +786,7 @@ static int fimc_lite_streamoff(struct file *file, void *priv,
struct fimc_lite *fimc = video_drvdata(file);
int ret;
- ret = vb2_streamoff(&fimc->vb_queue, type);
+ ret = vb2_ioctl_streamoff(file, priv, type);
if (ret == 0)
media_entity_pipeline_stop(&fimc->vfd.entity);
return ret;
@@ -839,53 +799,13 @@ static int fimc_lite_reqbufs(struct file *file, void *priv,
int ret;
reqbufs->count = max_t(u32, FLITE_REQ_BUFS_MIN, reqbufs->count);
- ret = vb2_reqbufs(&fimc->vb_queue, reqbufs);
+ ret = vb2_ioctl_reqbufs(file, priv, reqbufs);
if (!ret)
fimc->reqbufs_count = reqbufs->count;
return ret;
}
-static int fimc_lite_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_lite *fimc = video_drvdata(file);
-
- return vb2_querybuf(&fimc->vb_queue, buf);
-}
-
-static int fimc_lite_qbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_lite *fimc = video_drvdata(file);
-
- return vb2_qbuf(&fimc->vb_queue, buf);
-}
-
-static int fimc_lite_dqbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_lite *fimc = video_drvdata(file);
-
- return vb2_dqbuf(&fimc->vb_queue, buf, file->f_flags & O_NONBLOCK);
-}
-
-static int fimc_lite_create_bufs(struct file *file, void *priv,
- struct v4l2_create_buffers *create)
-{
- struct fimc_lite *fimc = video_drvdata(file);
-
- return vb2_create_bufs(&fimc->vb_queue, create);
-}
-
-static int fimc_lite_prepare_buf(struct file *file, void *priv,
- struct v4l2_buffer *b)
-{
- struct fimc_lite *fimc = video_drvdata(file);
-
- return vb2_prepare_buf(&fimc->vb_queue, b);
-}
-
/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
{
@@ -965,11 +885,11 @@ static const struct v4l2_ioctl_ops fimc_lite_ioctl_ops = {
.vidioc_g_selection = fimc_lite_g_selection,
.vidioc_s_selection = fimc_lite_s_selection,
.vidioc_reqbufs = fimc_lite_reqbufs,
- .vidioc_querybuf = fimc_lite_querybuf,
- .vidioc_prepare_buf = fimc_lite_prepare_buf,
- .vidioc_create_bufs = fimc_lite_create_bufs,
- .vidioc_qbuf = fimc_lite_qbuf,
- .vidioc_dqbuf = fimc_lite_dqbuf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_streamon = fimc_lite_streamon,
.vidioc_streamoff = fimc_lite_streamoff,
};
@@ -1310,8 +1230,7 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
vfd->v4l2_dev = sd->v4l2_dev;
vfd->minor = -1;
vfd->release = video_device_release_empty;
- vfd->lock = &fimc->lock;
- fimc->ref_count = 0;
+ vfd->queue = q;
fimc->reqbufs_count = 0;
INIT_LIST_HEAD(&fimc->pending_buf_q);
@@ -1325,6 +1244,7 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
q->buf_struct_size = sizeof(struct flite_buffer);
q->drv_priv = fimc;
q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &fimc->lock;
ret = vb2_queue_init(q);
if (ret < 0)
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
