staging: vc04_services: ISP: Add colour denoise control

Add colour denoise control to the bcm2835 driver through a new v4l2
control: V4L2_CID_USER_BCM2835_ISP_CDN.

Add the accompanying MMAL configuration structure definitions as well.

Signed-off-by: Naushir Patuck <[email protected]>

Author: naushir

drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c

@@ -776,6 +776,11 @@ static int bcm2835_isp_s_ctrl(struct v4l2_ctrl *ctrl)
 				    ctrl->p_new.p_u8,
 				    sizeof(struct bcm2835_isp_denoise));
 		break;
+	case V4L2_CID_USER_BCM2835_ISP_CDN:
+		ret = set_isp_param(node, MMAL_PARAMETER_CDN,
+				    ctrl->p_new.p_u8,
+				    sizeof(struct bcm2835_isp_cdn));
+		break;
 	case V4L2_CID_USER_BCM2835_ISP_SHARPEN:
 		ret = set_isp_param(node, MMAL_PARAMETER_SHARPEN,
 				    ctrl->p_new.p_u8,

drivers/staging/vc04_services/bcm2835-isp/bcm2835_isp_ctrls.h

@@ -56,6 +56,11 @@ static const struct bcm2835_isp_custom_ctrl custom_ctrls[] = {
 		.id	= V4L2_CID_USER_BCM2835_ISP_DENOISE,
 		.size	= sizeof(struct bcm2835_isp_denoise),
 		.flags  = 0
+	}, {
+		.name	= "Colour Denoise",
+		.id	= V4L2_CID_USER_BCM2835_ISP_CDN,
+		.size	= sizeof(struct bcm2835_isp_cdn),
+		.flags  = 0
 	}, {
 		.name	= "Defective Pixel Correction",
 		.id	= V4L2_CID_USER_BCM2835_ISP_DPC,

drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h

@@ -277,6 +277,8 @@ enum mmal_parameter_camera_type {
 	MMAL_PARAMETER_DPC,
 		/**< Tales a @ref MMAP_PARAMETER_GAMMA_T */
 	MMAL_PARAMETER_GAMMA,
+		/**< Takes a @ref MMAL_PARAMETER_CDN_T */
+	MMAL_PARAMETER_CDN,
 };
 
 struct mmal_parameter_rational {
@@ -910,6 +912,17 @@ struct mmal_parameter_gamma {
 	u16 y[MMAL_NUM_GAMMA_PTS];
 };
 
+enum mmal_parameter_cdn_mode {
+	MMAL_PARAM_CDN_FAST = 0,
+	MMAL_PARAM_CDN_HIGH_QUALITY = 1,
+	MMAL_PARAM_CDN_DUMMY  = 0x7FFFFFFF
+};
+
+struct mmal_parameter_colour_denoise {
+	u32 enabled;
+	enum mmal_parameter_cdn_mode mode;
+};
+
 struct mmal_parameter_denoise {
 	u32 enabled;
 	u32 constant;