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[media] media: platform: pxa_camera: add debug register access 

Add pxa_camera registers access through advanced video debugging.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Robert Jarzmik 2016-09-06 06:04:21 -03:00 committed by Mauro Carvalho Chehab
parent 283e4a8299
commit cdd657eb44
1 changed files with 32 additions and 0 deletions
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32
drivers/media/platform/soc_camera/pxa_camera.c
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@ -1342,6 +1342,34 @@ static int pxa_camera_check_frame(u32 width, u32 height)
(width & 0x01);
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int pxac_vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct pxa_camera_dev *pcdev = video_drvdata(file);
if (reg->reg > CIBR2)
return -ERANGE;
reg->val = __raw_readl(pcdev->base + reg->reg);
reg->size = sizeof(__u32);
return 0;
}
static int pxac_vidioc_s_register(struct file *file, void *priv,
const struct v4l2_dbg_register *reg)
{
struct pxa_camera_dev *pcdev = video_drvdata(file);
if (reg->reg > CIBR2)
return -ERANGE;
if (reg->size != sizeof(__u32))
return -EINVAL;
__raw_writel(reg->val, pcdev->base + reg->reg);
return 0;
}
#endif
static int pxac_vidioc_enum_fmt_vid_cap(struct file *filp, void *priv,
struct v4l2_fmtdesc *f)
{
@ -1592,6 +1620,10 @@ static const struct v4l2_ioctl_ops pxa_camera_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = pxac_vidioc_g_register,
.vidioc_s_register = pxac_vidioc_s_register,
#endif
};
static struct v4l2_clk_ops pxa_camera_mclk_ops = {