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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2014 The Linux Foundation. All rights reserved.
4 * Copyright (C) 2013 Red Hat
5 * Author: Rob Clark <robdclark@gmail.com>
6 */
7
8#include <drm/drm_fourcc.h>
9#include <drm/drm_framebuffer.h>
10
11#include "msm_drv.h"
12#include "mdp_kms.h"
13
14static struct csc_cfg csc_convert[CSC_MAX] = {
15 [CSC_RGB2RGB] = {
16 .type = CSC_RGB2RGB,
17 .matrix = {
18 0x0200, 0x0000, 0x0000,
19 0x0000, 0x0200, 0x0000,
20 0x0000, 0x0000, 0x0200
21 },
22 .pre_bias = { 0x0, 0x0, 0x0 },
23 .post_bias = { 0x0, 0x0, 0x0 },
24 .pre_clamp = { 0x0, 0xff, 0x0, 0xff, 0x0, 0xff },
25 .post_clamp = { 0x0, 0xff, 0x0, 0xff, 0x0, 0xff },
26 },
27 [CSC_YUV2RGB] = {
28 .type = CSC_YUV2RGB,
29 .matrix = {
30 0x0254, 0x0000, 0x0331,
31 0x0254, 0xff37, 0xfe60,
32 0x0254, 0x0409, 0x0000
33 },
34 .pre_bias = { 0xfff0, 0xff80, 0xff80 },
35 .post_bias = { 0x00, 0x00, 0x00 },
36 .pre_clamp = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
37 .post_clamp = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
38 },
39 [CSC_RGB2YUV] = {
40 .type = CSC_RGB2YUV,
41 .matrix = {
42 0x0083, 0x0102, 0x0032,
43 0x1fb5, 0x1f6c, 0x00e1,
44 0x00e1, 0x1f45, 0x1fdc
45 },
46 .pre_bias = { 0x00, 0x00, 0x00 },
47 .post_bias = { 0x10, 0x80, 0x80 },
48 .pre_clamp = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
49 .post_clamp = { 0x10, 0xeb, 0x10, 0xf0, 0x10, 0xf0 },
50 },
51 [CSC_YUV2YUV] = {
52 .type = CSC_YUV2YUV,
53 .matrix = {
54 0x0200, 0x0000, 0x0000,
55 0x0000, 0x0200, 0x0000,
56 0x0000, 0x0000, 0x0200
57 },
58 .pre_bias = { 0x00, 0x00, 0x00 },
59 .post_bias = { 0x00, 0x00, 0x00 },
60 .pre_clamp = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
61 .post_clamp = { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
62 },
63};
64
65#define FMT(name, a, r, g, b, e0, e1, e2, e3, alpha, tight, c, cnt, fp, cs, yuv) { \
66 .base = { .pixel_format = DRM_FORMAT_ ## name }, \
67 .bpc_a = BPC ## a ## A, \
68 .bpc_r = BPC ## r, \
69 .bpc_g = BPC ## g, \
70 .bpc_b = BPC ## b, \
71 .unpack = { e0, e1, e2, e3 }, \
72 .alpha_enable = alpha, \
73 .unpack_tight = tight, \
74 .cpp = c, \
75 .unpack_count = cnt, \
76 .fetch_type = fp, \
77 .chroma_sample = cs, \
78 .is_yuv = yuv, \
79}
80
81#define BPC0A 0
82
83/*
84 * Note: Keep RGB formats 1st, followed by YUV formats to avoid breaking
85 * mdp_get_rgb_formats()'s implementation.
86 */
87static const struct mdp_format formats[] = {
88 /* name a r g b e0 e1 e2 e3 alpha tight cpp cnt ... */
89 FMT(ARGB8888, 8, 8, 8, 8, 1, 0, 2, 3, true, true, 4, 4,
90 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
91 FMT(ABGR8888, 8, 8, 8, 8, 2, 0, 1, 3, true, true, 4, 4,
92 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
93 FMT(RGBA8888, 8, 8, 8, 8, 3, 1, 0, 2, true, true, 4, 4,
94 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
95 FMT(BGRA8888, 8, 8, 8, 8, 3, 2, 0, 1, true, true, 4, 4,
96 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
97 FMT(XRGB8888, 8, 8, 8, 8, 1, 0, 2, 3, false, true, 4, 4,
98 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
99 FMT(XBGR8888, 8, 8, 8, 8, 2, 0, 1, 3, false, true, 4, 4,
100 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
101 FMT(RGBX8888, 8, 8, 8, 8, 3, 1, 0, 2, false, true, 4, 4,
102 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
103 FMT(BGRX8888, 8, 8, 8, 8, 3, 2, 0, 1, false, true, 4, 4,
104 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
105 FMT(RGB888, 0, 8, 8, 8, 1, 0, 2, 0, false, true, 3, 3,
106 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
107 FMT(BGR888, 0, 8, 8, 8, 2, 0, 1, 0, false, true, 3, 3,
108 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
109 FMT(RGB565, 0, 5, 6, 5, 1, 0, 2, 0, false, true, 2, 3,
110 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
111 FMT(BGR565, 0, 5, 6, 5, 2, 0, 1, 0, false, true, 2, 3,
112 MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
113
114 /* --- RGB formats above / YUV formats below this line --- */
115
116 /* 2 plane YUV */
117 FMT(NV12, 0, 8, 8, 8, 1, 2, 0, 0, false, true, 2, 2,
118 MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
119 FMT(NV21, 0, 8, 8, 8, 2, 1, 0, 0, false, true, 2, 2,
120 MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
121 FMT(NV16, 0, 8, 8, 8, 1, 2, 0, 0, false, true, 2, 2,
122 MDP_PLANE_PSEUDO_PLANAR, CHROMA_H2V1, true),
123 FMT(NV61, 0, 8, 8, 8, 2, 1, 0, 0, false, true, 2, 2,
124 MDP_PLANE_PSEUDO_PLANAR, CHROMA_H2V1, true),
125 /* 1 plane YUV */
126 FMT(VYUY, 0, 8, 8, 8, 2, 0, 1, 0, false, true, 2, 4,
127 MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
128 FMT(UYVY, 0, 8, 8, 8, 1, 0, 2, 0, false, true, 2, 4,
129 MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
130 FMT(YUYV, 0, 8, 8, 8, 0, 1, 0, 2, false, true, 2, 4,
131 MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
132 FMT(YVYU, 0, 8, 8, 8, 0, 2, 0, 1, false, true, 2, 4,
133 MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
134 /* 3 plane YUV */
135 FMT(YUV420, 0, 8, 8, 8, 2, 1, 0, 0, false, true, 1, 1,
136 MDP_PLANE_PLANAR, CHROMA_420, true),
137 FMT(YVU420, 0, 8, 8, 8, 1, 2, 0, 0, false, true, 1, 1,
138 MDP_PLANE_PLANAR, CHROMA_420, true),
139};
140
141/*
142 * Note:
143 * @rgb_only must be set to true, when requesting
144 * supported formats for RGB pipes.
145 */
146uint32_t mdp_get_formats(uint32_t *pixel_formats, uint32_t max_formats,
147 bool rgb_only)
148{
149 uint32_t i;
150 for (i = 0; i < ARRAY_SIZE(formats); i++) {
151 const struct mdp_format *f = &formats[i];
152
153 if (i == max_formats)
154 break;
155
156 if (rgb_only && MDP_FORMAT_IS_YUV(f))
157 break;
158
159 pixel_formats[i] = f->base.pixel_format;
160 }
161
162 return i;
163}
164
165const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format,
166 uint64_t modifier)
167{
168 int i;
169 for (i = 0; i < ARRAY_SIZE(formats); i++) {
170 const struct mdp_format *f = &formats[i];
171 if (f->base.pixel_format == format)
172 return &f->base;
173 }
174 return NULL;
175}
176
177struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type type)
178{
179 if (WARN_ON(type >= CSC_MAX))
180 return NULL;
181
182 return &csc_convert[type];
183}