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authorSylwester Nawrocki2012-04-30 04:34:10 -0300
committerMauro Carvalho Chehab2012-05-14 14:24:24 -0300
commitcf072139c7952e267a2eff334f224a62c949ee96 (patch)
tree9e793840d43b70152f506a43fe7e06ee97e7f524 /drivers/media/video/v4l2-ctrls.c
parent7f84ad8bdb63a8bfcbb83755e487e06be5db54cf (diff)
[media] V4L: Add camera exposure metering control
The V4L2_CID_EXPOSURE_METERING control allows to determine a method used by the camera for measuring the amount of light available for automatic exposure. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-ctrls.c')
-rw-r--r--drivers/media/video/v4l2-ctrls.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index debaf9fb9004..55dd813b7341 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -230,6 +230,12 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
"Aperture Priority Mode",
NULL
};
+ static const char * const camera_exposure_metering[] = {
+ "Average",
+ "Center Weighted",
+ "Spot",
+ NULL
+ };
static const char * const colorfx[] = {
"None",
"Black & White",
@@ -434,6 +440,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
return camera_power_line_frequency;
case V4L2_CID_EXPOSURE_AUTO:
return camera_exposure_auto;
+ case V4L2_CID_EXPOSURE_METERING:
+ return camera_exposure_metering;
case V4L2_CID_COLORFX:
return colorfx;
case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
@@ -632,6 +640,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_IMAGE_STABILIZATION: return "Image Stabilization";
case V4L2_CID_ISO_SENSITIVITY: return "ISO Sensitivity";
case V4L2_CID_ISO_SENSITIVITY_AUTO: return "ISO Sensitivity, Auto";
+ case V4L2_CID_EXPOSURE_METERING: return "Exposure, Metering Mode";
/* FM Radio Modulator control */
/* Keep the order of the 'case's the same as in videodev2.h! */
@@ -783,6 +792,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
case V4L2_CID_ISO_SENSITIVITY_AUTO:
+ case V4L2_CID_EXPOSURE_METERING:
*type = V4L2_CTRL_TYPE_MENU;
break;
case V4L2_CID_LINK_FREQ: