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Subject[PATCH v4 08/17] media: blackfin: bfin_capture: use vb2_ioctl_* helpers
Date
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>

this patch adds support to vb2_ioctl_* helpers.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Tested-by: Scott Jiang <scott.jiang.linux@gmail.com>
---
drivers/media/platform/blackfin/bfin_capture.c | 103 +++++--------------------
1 file changed, 18 insertions(+), 85 deletions(-)

diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 01e778d..2a9e933 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -276,6 +276,7 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
struct ppi_if *ppi = bcap_dev->ppi;
struct bcap_buffer *buf, *tmp;
struct ppi_params params;
+ dma_addr_t addr;
int ret;

/* enable streamon on the sub device */
@@ -335,6 +336,17 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
reinit_completion(&bcap_dev->comp);
bcap_dev->stop = false;

+ /* get the next frame from the dma queue */
+ bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
+ struct bcap_buffer, list);
+ /* remove buffer from the dma queue */
+ list_del_init(&bcap_dev->cur_frm->list);
+ addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0);
+ /* update DMA address */
+ ppi->ops->update_addr(ppi, (unsigned long)addr);
+ /* enable ppi */
+ ppi->ops->start(ppi);
+
return 0;

err:
@@ -381,40 +393,6 @@ static struct vb2_ops bcap_video_qops = {
.stop_streaming = bcap_stop_streaming,
};

-static int bcap_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *req_buf)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
- struct vb2_queue *vq = &bcap_dev->buffer_queue;
-
- return vb2_reqbufs(vq, req_buf);
-}
-
-static int bcap_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
-
- return vb2_querybuf(&bcap_dev->buffer_queue, buf);
-}
-
-static int bcap_qbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
-
- return vb2_qbuf(&bcap_dev->buffer_queue, buf);
-}
-
-static int bcap_dqbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
-
- return vb2_dqbuf(&bcap_dev->buffer_queue,
- buf, file->f_flags & O_NONBLOCK);
-}
-
static irqreturn_t bcap_isr(int irq, void *dev_id)
{
struct ppi_if *ppi = dev_id;
@@ -456,51 +434,6 @@ static irqreturn_t bcap_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}

-static int bcap_streamon(struct file *file, void *priv,
- enum v4l2_buf_type buf_type)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
- struct ppi_if *ppi = bcap_dev->ppi;
- dma_addr_t addr;
- int ret;
-
- /* call streamon to start streaming in videobuf */
- ret = vb2_streamon(&bcap_dev->buffer_queue, buf_type);
- if (ret)
- return ret;
-
- /* if dma queue is empty, return error */
- if (list_empty(&bcap_dev->dma_queue)) {
- v4l2_err(&bcap_dev->v4l2_dev, "dma queue is empty\n");
- ret = -EINVAL;
- goto err;
- }
-
- /* get the next frame from the dma queue */
- bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
- struct bcap_buffer, list);
- /* remove buffer from the dma queue */
- list_del_init(&bcap_dev->cur_frm->list);
- addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0);
- /* update DMA address */
- ppi->ops->update_addr(ppi, (unsigned long)addr);
- /* enable ppi */
- ppi->ops->start(ppi);
-
- return 0;
-err:
- vb2_streamoff(&bcap_dev->buffer_queue, buf_type);
- return ret;
-}
-
-static int bcap_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type buf_type)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
-
- return vb2_streamoff(&bcap_dev->buffer_queue, buf_type);
-}
-
static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std)
{
struct bcap_device *bcap_dev = video_drvdata(file);
@@ -786,12 +719,12 @@ static const struct v4l2_ioctl_ops bcap_ioctl_ops = {
.vidioc_g_dv_timings = bcap_g_dv_timings,
.vidioc_query_dv_timings = bcap_query_dv_timings,
.vidioc_enum_dv_timings = bcap_enum_dv_timings,
- .vidioc_reqbufs = bcap_reqbufs,
- .vidioc_querybuf = bcap_querybuf,
- .vidioc_qbuf = bcap_qbuf,
- .vidioc_dqbuf = bcap_dqbuf,
- .vidioc_streamon = bcap_streamon,
- .vidioc_streamoff = bcap_streamoff,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_parm = bcap_g_parm,
.vidioc_s_parm = bcap_s_parm,
.vidioc_log_status = bcap_log_status,
--
2.1.0


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