xref: /openbmc/linux/drivers/gpu/drm/msm/disp/mdp_format.c (revision 09bae3b6)
1 /*
2  * Copyright (c) 2014 The Linux Foundation. All rights reserved.
3  * Copyright (C) 2013 Red Hat
4  * Author: Rob Clark <robdclark@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License version 2 as published by
8  * the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  * more details.
14  *
15  * You should have received a copy of the GNU General Public License along with
16  * this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 
20 #include "msm_drv.h"
21 #include "mdp_kms.h"
22 
23 static struct csc_cfg csc_convert[CSC_MAX] = {
24 	[CSC_RGB2RGB] = {
25 		.type = CSC_RGB2RGB,
26 		.matrix = {
27 			0x0200, 0x0000, 0x0000,
28 			0x0000, 0x0200, 0x0000,
29 			0x0000, 0x0000, 0x0200
30 		},
31 		.pre_bias =	{ 0x0, 0x0, 0x0 },
32 		.post_bias =	{ 0x0, 0x0, 0x0 },
33 		.pre_clamp =	{ 0x0, 0xff, 0x0, 0xff, 0x0, 0xff },
34 		.post_clamp =	{ 0x0, 0xff, 0x0, 0xff, 0x0, 0xff },
35 	},
36 	[CSC_YUV2RGB] = {
37 		.type = CSC_YUV2RGB,
38 		.matrix = {
39 			0x0254, 0x0000, 0x0331,
40 			0x0254, 0xff37, 0xfe60,
41 			0x0254, 0x0409, 0x0000
42 		},
43 		.pre_bias =	{ 0xfff0, 0xff80, 0xff80 },
44 		.post_bias =	{ 0x00, 0x00, 0x00 },
45 		.pre_clamp =	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
46 		.post_clamp =	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
47 	},
48 	[CSC_RGB2YUV] = {
49 		.type = CSC_RGB2YUV,
50 		.matrix = {
51 			0x0083, 0x0102, 0x0032,
52 			0x1fb5, 0x1f6c, 0x00e1,
53 			0x00e1, 0x1f45, 0x1fdc
54 		},
55 		.pre_bias =	{ 0x00, 0x00, 0x00 },
56 		.post_bias =	{ 0x10, 0x80, 0x80 },
57 		.pre_clamp =	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
58 		.post_clamp =	{ 0x10, 0xeb, 0x10, 0xf0, 0x10, 0xf0 },
59 	},
60 	[CSC_YUV2YUV] = {
61 		.type = CSC_YUV2YUV,
62 		.matrix = {
63 			0x0200, 0x0000, 0x0000,
64 			0x0000, 0x0200, 0x0000,
65 			0x0000, 0x0000, 0x0200
66 		},
67 		.pre_bias =	{ 0x00, 0x00, 0x00 },
68 		.post_bias =	{ 0x00, 0x00, 0x00 },
69 		.pre_clamp =	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
70 		.post_clamp =	{ 0x00, 0xff, 0x00, 0xff, 0x00, 0xff },
71 	},
72 };
73 
74 #define FMT(name, a, r, g, b, e0, e1, e2, e3, alpha, tight, c, cnt, fp, cs, yuv) { \
75 		.base = { .pixel_format = DRM_FORMAT_ ## name }, \
76 		.bpc_a = BPC ## a ## A,                          \
77 		.bpc_r = BPC ## r,                               \
78 		.bpc_g = BPC ## g,                               \
79 		.bpc_b = BPC ## b,                               \
80 		.unpack = { e0, e1, e2, e3 },                    \
81 		.alpha_enable = alpha,                           \
82 		.unpack_tight = tight,                           \
83 		.cpp = c,                                        \
84 		.unpack_count = cnt,                             \
85 		.fetch_type = fp,                                \
86 		.chroma_sample = cs,                             \
87 		.is_yuv = yuv,                                   \
88 }
89 
90 #define BPC0A 0
91 
92 /*
93  * Note: Keep RGB formats 1st, followed by YUV formats to avoid breaking
94  * mdp_get_rgb_formats()'s implementation.
95  */
96 static const struct mdp_format formats[] = {
97 	/*  name      a  r  g  b   e0 e1 e2 e3  alpha   tight  cpp cnt ... */
98 	FMT(ARGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  true,   true,  4,  4,
99 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
100 	FMT(ABGR8888, 8, 8, 8, 8,  2, 0, 1, 3,  true,   true,  4,  4,
101 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
102 	FMT(RGBA8888, 8, 8, 8, 8,  3, 1, 0, 2,  true,   true,  4,  4,
103 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
104 	FMT(BGRA8888, 8, 8, 8, 8,  3, 2, 0, 1,  true,   true,  4,  4,
105 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
106 	FMT(XRGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  false,  true,  4,  4,
107 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
108 	FMT(XBGR8888, 8, 8, 8, 8,  2, 0, 1, 3,  false,   true,  4,  4,
109 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
110 	FMT(RGBX8888, 8, 8, 8, 8,  3, 1, 0, 2,  false,   true,  4,  4,
111 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
112 	FMT(BGRX8888, 8, 8, 8, 8,  3, 2, 0, 1,  false,   true,  4,  4,
113 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
114 	FMT(RGB888,   0, 8, 8, 8,  1, 0, 2, 0,  false,  true,  3,  3,
115 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
116 	FMT(BGR888,   0, 8, 8, 8,  2, 0, 1, 0,  false,  true,  3,  3,
117 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
118 	FMT(RGB565,   0, 5, 6, 5,  1, 0, 2, 0,  false,  true,  2,  3,
119 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
120 	FMT(BGR565,   0, 5, 6, 5,  2, 0, 1, 0,  false,  true,  2,  3,
121 			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
122 
123 	/* --- RGB formats above / YUV formats below this line --- */
124 
125 	/* 2 plane YUV */
126 	FMT(NV12,     0, 8, 8, 8,  1, 2, 0, 0,  false,  true,  2, 2,
127 			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
128 	FMT(NV21,     0, 8, 8, 8,  2, 1, 0, 0,  false,  true,  2, 2,
129 			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
130 	FMT(NV16,     0, 8, 8, 8,  1, 2, 0, 0,  false,  true,  2, 2,
131 			MDP_PLANE_PSEUDO_PLANAR, CHROMA_H2V1, true),
132 	FMT(NV61,     0, 8, 8, 8,  2, 1, 0, 0,  false,  true,  2, 2,
133 			MDP_PLANE_PSEUDO_PLANAR, CHROMA_H2V1, true),
134 	/* 1 plane YUV */
135 	FMT(VYUY,     0, 8, 8, 8,  2, 0, 1, 0,  false,  true,  2, 4,
136 			MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
137 	FMT(UYVY,     0, 8, 8, 8,  1, 0, 2, 0,  false,  true,  2, 4,
138 			MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
139 	FMT(YUYV,     0, 8, 8, 8,  0, 1, 0, 2,  false,  true,  2, 4,
140 			MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
141 	FMT(YVYU,     0, 8, 8, 8,  0, 2, 0, 1,  false,  true,  2, 4,
142 			MDP_PLANE_INTERLEAVED, CHROMA_H2V1, true),
143 	/* 3 plane YUV */
144 	FMT(YUV420,   0, 8, 8, 8,  2, 1, 0, 0,  false,  true,  1, 1,
145 			MDP_PLANE_PLANAR, CHROMA_420, true),
146 	FMT(YVU420,   0, 8, 8, 8,  1, 2, 0, 0,  false,  true,  1, 1,
147 			MDP_PLANE_PLANAR, CHROMA_420, true),
148 };
149 
150 /*
151  * Note:
152  * @rgb_only must be set to true, when requesting
153  * supported formats for RGB pipes.
154  */
155 uint32_t mdp_get_formats(uint32_t *pixel_formats, uint32_t max_formats,
156 		bool rgb_only)
157 {
158 	uint32_t i;
159 	for (i = 0; i < ARRAY_SIZE(formats); i++) {
160 		const struct mdp_format *f = &formats[i];
161 
162 		if (i == max_formats)
163 			break;
164 
165 		if (rgb_only && MDP_FORMAT_IS_YUV(f))
166 			break;
167 
168 		pixel_formats[i] = f->base.pixel_format;
169 	}
170 
171 	return i;
172 }
173 
174 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format,
175 		uint64_t modifier)
176 {
177 	int i;
178 	for (i = 0; i < ARRAY_SIZE(formats); i++) {
179 		const struct mdp_format *f = &formats[i];
180 		if (f->base.pixel_format == format)
181 			return &f->base;
182 	}
183 	return NULL;
184 }
185 
186 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type type)
187 {
188 	if (unlikely(WARN_ON(type >= CSC_MAX)))
189 		return NULL;
190 
191 	return &csc_convert[type];
192 }
193