iq: Make the IQ parameters configurable

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

1 files changed, 31 insertions, 1 deletions

diff --git a/iq.h b/iq.h
index aeb29de..2b043a8 100644
--- a/iq.h
+++ b/iq.h
@@ -27,9 +27,39 @@ struct iq_tuning;
 struct omap3_isp_device;
 struct omap3_isp_aewb_stats;
 
+/**
+ * struct iq_params - Image quality tuning parameters
+ * @mean_level: Target mean luminance level (fraction of the maximum)
+ * @exposure: Initial exposure value (sensor-specific units)
+ * @exposure_min: Minimum exposure value
+ * @exposure_max: Maximum exposure value
+ * @gain: Initial gain value (sensor-specific units)
+ * @gain_min: Minimum gain value
+ * @gain_max: Maximum gain value
+ * @black_level: Black level offset
+ */
+struct iq_params {
+	float mean_level;
+
+	unsigned int exposure;
+	unsigned int exposure_min;
+	unsigned int exposure_max;
+
+	unsigned int gain;
+	unsigned int gain_min;
+	unsigned int gain_max;
+
+	unsigned int black_level;
+};
+
 void iq_aewb_process(struct iq_tuning *iq,
 		     const struct omap3_isp_aewb_stats *stats);
-struct iq_tuning *iq_init(struct omap3_isp_device *isp);
+
+void iq_params_init(struct iq_params *params);
+int iq_params_parse(struct iq_params *params, const char *arg);
+
+struct iq_tuning *iq_init(struct omap3_isp_device *isp,
+			  const struct iq_params *params);
 void iq_cleanup(struct iq_tuning *iq);
 
 #endif