+++ /dev/null
-From 9582109f14a5e357c6287b5ab658293e8359fa47 Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Tue, 17 Sep 2019 18:28:17 +0100
-Subject: [PATCH] drm/vc4: Add support for YUV color encodings and
- ranges
-
-The BT601/BT709 color encoding and limited vs full
-range properties were not being exposed, defaulting
-always to BT601 limited range.
-
-Expose the parameters and set the registers appropriately.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- drivers/gpu/drm/vc4/vc4_plane.c | 72 +++++++++++++++++++++++++++++++--
- drivers/gpu/drm/vc4/vc4_regs.h | 3 ++
- 2 files changed, 72 insertions(+), 3 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_plane.c
-+++ b/drivers/gpu/drm/vc4/vc4_plane.c
-@@ -628,6 +628,53 @@ static int vc4_plane_allocate_lbm(struct
- return 0;
- }
-
-+/* The colorspace conversion matrices are held in 3 entries in the dlist.
-+ * Create an array of them, with entries for each full and limited mode, and
-+ * each supported colorspace.
-+ */
-+#define VC4_LIMITED_RANGE 0
-+#define VC4_FULL_RANGE 1
-+
-+static const u32 colorspace_coeffs[2][DRM_COLOR_ENCODING_MAX][3] = {
-+ {
-+ /* Limited range */
-+ {
-+ /* BT601 */
-+ SCALER_CSC0_ITR_R_601_5,
-+ SCALER_CSC1_ITR_R_601_5,
-+ SCALER_CSC2_ITR_R_601_5,
-+ }, {
-+ /* BT709 */
-+ SCALER_CSC0_ITR_R_709_3,
-+ SCALER_CSC1_ITR_R_709_3,
-+ SCALER_CSC2_ITR_R_709_3,
-+ }, {
-+ /* BT2020. Not supported yet - copy 601 */
-+ SCALER_CSC0_ITR_R_601_5,
-+ SCALER_CSC1_ITR_R_601_5,
-+ SCALER_CSC2_ITR_R_601_5,
-+ }
-+ }, {
-+ /* Full range */
-+ {
-+ /* JFIF */
-+ SCALER_CSC0_JPEG_JFIF,
-+ SCALER_CSC1_JPEG_JFIF,
-+ SCALER_CSC2_JPEG_JFIF,
-+ }, {
-+ /* BT709 */
-+ SCALER_CSC0_ITR_R_709_3_FR,
-+ SCALER_CSC1_ITR_R_709_3_FR,
-+ SCALER_CSC2_ITR_R_709_3_FR,
-+ }, {
-+ /* BT2020. Not supported yet - copy JFIF */
-+ SCALER_CSC0_JPEG_JFIF,
-+ SCALER_CSC1_JPEG_JFIF,
-+ SCALER_CSC2_JPEG_JFIF,
-+ }
-+ }
-+};
-+
- /* Writes out a full display list for an active plane to the plane's
- * private dlist state.
- */
-@@ -992,9 +1039,20 @@ static int vc4_plane_mode_set(struct drm
-
- /* Colorspace conversion words */
- if (vc4_state->is_yuv) {
-- vc4_dlist_write(vc4_state, SCALER_CSC0_ITR_R_601_5);
-- vc4_dlist_write(vc4_state, SCALER_CSC1_ITR_R_601_5);
-- vc4_dlist_write(vc4_state, SCALER_CSC2_ITR_R_601_5);
-+ enum drm_color_encoding color_encoding = state->color_encoding;
-+ enum drm_color_range color_range = state->color_range;
-+ const u32 *ccm;
-+
-+ if (color_encoding >= DRM_COLOR_ENCODING_MAX)
-+ color_encoding = DRM_COLOR_YCBCR_BT601;
-+ if (color_range >= DRM_COLOR_RANGE_MAX)
-+ color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
-+
-+ ccm = colorspace_coeffs[color_range][color_encoding];
-+
-+ vc4_dlist_write(vc4_state, ccm[0]);
-+ vc4_dlist_write(vc4_state, ccm[1]);
-+ vc4_dlist_write(vc4_state, ccm[2]);
- }
-
- vc4_state->lbm_offset = 0;
-@@ -1423,6 +1481,14 @@ struct drm_plane *vc4_plane_init(struct
- DRM_MODE_REFLECT_X |
- DRM_MODE_REFLECT_Y);
-
-+ drm_plane_create_color_properties(plane,
-+ BIT(DRM_COLOR_YCBCR_BT601) |
-+ BIT(DRM_COLOR_YCBCR_BT709),
-+ BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
-+ BIT(DRM_COLOR_YCBCR_FULL_RANGE),
-+ DRM_COLOR_YCBCR_BT709,
-+ DRM_COLOR_YCBCR_LIMITED_RANGE);
-+
- return plane;
- }
-
---- a/drivers/gpu/drm/vc4/vc4_regs.h
-+++ b/drivers/gpu/drm/vc4/vc4_regs.h
-@@ -976,6 +976,7 @@ enum hvs_pixel_format {
- #define SCALER_CSC0_ITR_R_601_5 0x00f00000
- #define SCALER_CSC0_ITR_R_709_3 0x00f00000
- #define SCALER_CSC0_JPEG_JFIF 0x00000000
-+#define SCALER_CSC0_ITR_R_709_3_FR 0x00000000
-
- /* S2.8 contribution of Cb to Green */
- #define SCALER_CSC1_COEF_CB_GRN_MASK VC4_MASK(31, 22)
-@@ -992,6 +993,7 @@ enum hvs_pixel_format {
- #define SCALER_CSC1_ITR_R_601_5 0xe73304a8
- #define SCALER_CSC1_ITR_R_709_3 0xf2b784a8
- #define SCALER_CSC1_JPEG_JFIF 0xea34a400
-+#define SCALER_CSC1_ITR_R_709_3_FR 0xe23d0400
-
- /* S2.8 contribution of Cb to Red */
- #define SCALER_CSC2_COEF_CB_RED_MASK VC4_MASK(29, 20)
-@@ -1005,6 +1007,7 @@ enum hvs_pixel_format {
- #define SCALER_CSC2_ITR_R_601_5 0x00066204
- #define SCALER_CSC2_ITR_R_709_3 0x00072a1c
- #define SCALER_CSC2_JPEG_JFIF 0x000599c5
-+#define SCALER_CSC2_ITR_R_709_3_FR 0x00064ddb
-
- #define SCALER_TPZ0_VERT_RECALC BIT(31)
- #define SCALER_TPZ0_SCALE_MASK VC4_MASK(28, 8)
projects / openwrt / staging / chunkeey.git / blobdiff