iq: Add ae-delay and ae-interval parameters

The ae-delay parameter selects the number of frames to skip at stream
startup before running the auto exposure algorithm. The ae-interval
selects the number of frames between AE runs. This can be used to delay
AE when the sensor needs one or more frames to apply exposure and/or
gain values.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/iq.h b/iq.h
index a5c5028..74be0a2 100644
--- a/iq.h
+++ b/iq.h
@@ -30,6 +30,8 @@ struct omap3_isp_aewb_stats;
 /**
  * struct iq_params - Image quality tuning parameters
  * @window: Statistics computation window (fraction of the image size)
+ * @ae_delay: Number of frames to skip at stream start before enabling AE
+ * @ae_interval: Number of frames between AE algorithm runs
  * @mean_level: Target mean luminance level (fraction of the maximum)
  * @exposure: Initial exposure value (sensor-specific units)
  * @exposure_min: Minimum exposure value
@@ -47,6 +49,9 @@ struct iq_params {
 		float height;
 	} window;
 
+	unsigned int ae_delay;
+	unsigned int ae_interval;
+
 	float mean_level;
 
 	unsigned int exposure;