From: Roberto Rodriguez Alcala <rralcala@xxxxxxxxx>
Signed-off-by: Roberto Rodriguez Alcala <rralcala@xxxxxxxxx>
---
drivers/media/video/ov7670.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c
index c881a64..cfe96e5 100644
--- a/drivers/media/video/ov7670.c
+++ b/drivers/media/video/ov7670.c
@@ -1255,6 +1255,36 @@ static int ov7670_s_gain(struct v4l2_subdev *sd, int value)
}
/*
+ * Get or Set Night Mode.
+ */
+static int ov7670_g_nightmode(struct v4l2_subdev *sd, __s32 *value)
+{
+ int ret;
+ unsigned char com11;
+
+ ret = ov7670_read(sd, REG_COM11, &com11);
+ *value = (com11 & COM11_NIGHT) != 0;
+ return ret;
+}
+
+static int ov7670_s_nightmode(struct v4l2_subdev *sd, int value)
+{
+ int ret;
+ unsigned char com11;
+
+ ret = ov7670_read(sd, REG_COM11, &com11);
+ if (ret == 0) {
+ if (value)
+ com11 |= COM11_NIGHT;
+ else
+ com11 &= ~COM11_NIGHT;
+ ret = ov7670_write(sd, REG_COM11, com11);
+ }
+ return ret;
+}
+
+
+/*
* Tweak autogain.
*/
static int ov7670_g_autogain(struct v4l2_subdev *sd, __s32 *value)
@@ -1382,6 +1412,8 @@ static int ov7670_queryctrl(struct v4l2_subdev *sd,
return v4l2_ctrl_query_fill(qc, 0, 65535, 1, 500);
case V4L2_CID_EXPOSURE_AUTO:
return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+ case V4L2_CID_NIGHT_MODE:
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
}
return -EINVAL;
}
@@ -1409,6 +1441,8 @@ static int ov7670_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
return ov7670_g_exp(sd, &ctrl->value);
case V4L2_CID_EXPOSURE_AUTO:
return ov7670_g_autoexp(sd, &ctrl->value);
+ case V4L2_CID_NIGHT_MODE:
+ return ov7670_g_nightmode(sd, &ctrl->value);
}
return -EINVAL;
}
@@ -1437,6 +1471,8 @@ static int ov7670_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
case V4L2_CID_EXPOSURE_AUTO:
return ov7670_s_autoexp(sd,
(enum v4l2_exposure_auto_type) ctrl->value);
+ case V4L2_CID_NIGHT_MODE:
+ return ov7670_s_nightmode(sd, ctrl->value);
}
return -EINVAL;
}
--
1.7.3.2
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