| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sat, 20 Dec 2014 16:17:35 +0530
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: LMML <linux-media@...r.kernel.org>,
Scott Jiang <scott.jiang.linux@...il.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
adi-buildroot-devel@...ts.sourceforge.net,
Mauro Carvalho Chehab <m.chehab@...sung.com>,
"Lad, Prabhakar" <prabhakar.csengg@...il.com>
Subject: [PATCH 08/15] media: blackfin: bfin_capture: use vb2_ioctl_* helpers
this patch adds support to vb2_ioctl_* helpers.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
---
drivers/media/platform/blackfin/bfin_capture.c | 107 +++++--------------------
1 file changed, 22 insertions(+), 85 deletions(-)
diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 30f1fe0..80a0efc 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -272,15 +272,28 @@ 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 */
ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1);
if (ret && (ret != -ENOIOCTLCMD)) {
v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n");
+ bcap_dev->cur_frm = NULL;
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);
+
/* set ppi params */
params.width = bcap_dev->fmt.width;
params.height = bcap_dev->fmt.height;
@@ -334,6 +347,9 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
return 0;
err:
+ if (bcap_dev->cur_frm)
+ vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_QUEUED);
+
list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) {
list_del(&buf->list);
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
@@ -377,40 +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;
@@ -452,51 +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);
@@ -782,12 +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,
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists