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authorRobert Jarzmik <robert.jarzmik@free.fr>2016-09-06 06:04:21 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-09-09 10:52:56 -0300
commitcdd657eb441ceb3b938ed0664d90ce07fbde3139 (patch)
treeea7ec490adf84805353e40f74518e060c7f8a096
parent283e4a82999f48c61495436b9bbd0357a3268f9d (diff)
[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>
-rw-r--r--drivers/media/platform/soc_camera/pxa_camera.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c
index 395cd398c32b..fb89b85f59ab 100644
--- a/drivers/media/platform/soc_camera/pxa_camera.c
+++ b/drivers/media/platform/soc_camera/pxa_camera.c
@@ -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 = {

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