misc: rk628: post_process: Support csc matrix

Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Change-Id: Icaef18f17bf35c4aff99489a0479f520bbc89a9b

drivers/misc/rk628/rk628.h

@@ -109,6 +109,8 @@
 #define SW_SPLIT_MODE(x)		UPDATE(x, 1, 1)
 #define SW_SPLIT_EN			BIT(0)
 #define GRF_CSC_CTRL_CON		0x0038
+#define SW_Y2R_MODE(x)			HIWORD_UPDATE(x, 13, 12)
+#define SW_FROM_CSC_MATRIX_EN(x)	HIWORD_UPDATE(x, 11, 11)
 #define SW_YUV2VYU_SWP(x)		HIWORD_UPDATE(x, 8, 8)
 #define SW_R2Y_EN(x)			HIWORD_UPDATE(x, 4, 4)
 #define SW_Y2R_EN(x)			HIWORD_UPDATE(x, 0, 0)
@@ -237,6 +239,14 @@
 #define BT1120_DSP_VTOTAL(x)		UPDATE(x, 12, 0)
 #define GRF_BT1120_TIMING_CTRL3		0x019c
 #define BT1120_DSP_VACT_ST(x)		UPDATE(x, 28, 16)
+#define GRF_CSC_MATRIX_COE01_COE00	0x01a0
+#define GRF_CSC_MATRIX_COE10_COE02	0x01a4
+#define GRF_CSC_MATRIX_COE12_COE11	0x01a8
+#define GRF_CSC_MATRIX_COE21_COE20	0x01ac
+#define GRF_CSC_MATRIX_COE22		0x01b0
+#define GRF_CSC_MATRIX_OFFSET0		0x01b4
+#define GRF_CSC_MATRIX_OFFSET1		0x01b8
+#define GRF_CSC_MATRIX_OFFSET2		0x01bc
 #define GRF_SOC_VERSION			0x0200
 #define GRF_OBS_REG			0X0300
 #define GRF_MAX_REGISTER		GRF_OBS_REG
@@ -363,6 +373,64 @@ enum rk628_mode_sync_pol {
 	MODE_FLAG_PSYNC,
 };
 
+/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
+enum rk628_v4l2_colorspace {
+	/*
+	 * Default colorspace, i.e. let the driver figure it out.
+	 * Can only be used with video capture.
+	 */
+	V4L2_COLORSPACE_DEFAULT       = 0,
+
+	/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
+	V4L2_COLORSPACE_SMPTE170M     = 1,
+
+	/* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
+	V4L2_COLORSPACE_SMPTE240M     = 2,
+
+	/* Rec.709: used for HDTV */
+	V4L2_COLORSPACE_REC709        = 3,
+
+	/*
+	 * Deprecated, do not use. No driver will ever return this. This was
+	 * based on a misunderstanding of the bt878 datasheet.
+	 */
+	V4L2_COLORSPACE_BT878         = 4,
+
+	/*
+	 * NTSC 1953 colorspace. This only makes sense when dealing with
+	 * really, really old NTSC recordings. Superseded by SMPTE 170M.
+	 */
+	V4L2_COLORSPACE_470_SYSTEM_M  = 5,
+
+	/*
+	 * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
+	 * dealing with really old PAL/SECAM recordings. Superseded by
+	 * SMPTE 170M.
+	 */
+	V4L2_COLORSPACE_470_SYSTEM_BG = 6,
+
+	/*
+	 * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
+	 * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
+	 */
+	V4L2_COLORSPACE_JPEG          = 7,
+
+	/* For RGB colorspaces such as produces by most webcams. */
+	V4L2_COLORSPACE_SRGB          = 8,
+
+	/* opRGB colorspace */
+	V4L2_COLORSPACE_OPRGB         = 9,
+
+	/* BT.2020 colorspace, used for UHDTV. */
+	V4L2_COLORSPACE_BT2020        = 10,
+
+	/* Raw colorspace: for RAW unprocessed images */
+	V4L2_COLORSPACE_RAW           = 11,
+
+	/* DCI-P3 colorspace, used by cinema projectors */
+	V4L2_COLORSPACE_DCI_P3        = 12,
+};
+
 #undef BT1120_DUAL_EDGE
 
 struct rk628_videomode {