drivers/gpu/drm/msm/disp/mdp_format.c

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