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

   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) { \
  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 }
  88
  89 #define BPC0A 0
  90
  91 /*
  92  * Note: Keep RGB formats 1st, followed by YUV formats to avoid breaking
  93  * mdp_get_rgb_formats()'s implementation.
  94  */
  95 static const struct mdp_format formats[] = {
  96         /*  name      a  r  g  b   e0 e1 e2 e3  alpha   tight  cpp cnt ... */
  97         FMT(ARGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  true,   true,  4,  4,
  98                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
  99         FMT(ABGR8888, 8, 8, 8, 8,  2, 0, 1, 3,  true,   true,  4,  4,
 100                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 101         FMT(RGBA8888, 8, 8, 8, 8,  3, 1, 0, 2,  true,   true,  4,  4,
 102                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 103         FMT(BGRA8888, 8, 8, 8, 8,  3, 2, 0, 1,  true,   true,  4,  4,
 104                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 105         FMT(XRGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  false,  true,  4,  4,
 106                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 107         FMT(RGB888,   0, 8, 8, 8,  1, 0, 2, 0,  false,  true,  3,  3,
 108                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 109         FMT(BGR888,   0, 8, 8, 8,  2, 0, 1, 0,  false,  true,  3,  3,
 110                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 111         FMT(RGB565,   0, 5, 6, 5,  1, 0, 2, 0,  false,  true,  2,  3,
 112                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 113         FMT(BGR565,   0, 5, 6, 5,  2, 0, 1, 0,  false,  true,  2,  3,
 114                         MDP_PLANE_INTERLEAVED, CHROMA_RGB),
 115
 116         /* --- RGB formats above / YUV formats below this line --- */
 117
 118         FMT(NV12,     0, 8, 8, 8,  1, 2, 0, 0,  false,  true,  2, 2,
 119                         MDP_PLANE_PSEUDO_PLANAR, CHROMA_420),
 120         FMT(NV21,     0, 8, 8, 8,  2, 1, 0, 0,  false,  true,  2, 2,
 121                         MDP_PLANE_PSEUDO_PLANAR, CHROMA_420),
 122 };
 123
 124 /*
 125  * Note:
 126  * @rgb_only must be set to true, when requesting
 127  * supported formats for RGB pipes.
 128  */
 129 uint32_t mdp_get_formats(uint32_t *pixel_formats, uint32_t max_formats,
 130                 bool rgb_only)
 131 {
 132         uint32_t i;
 133         for (i = 0; i < ARRAY_SIZE(formats); i++) {
 134                 const struct mdp_format *f = &formats[i];
 135
 136                 if (i == max_formats)
 137                         break;
 138
 139                 if (rgb_only && MDP_FORMAT_IS_YUV(f))
 140                         break;
 141
 142                 pixel_formats[i] = f->base.pixel_format;
 143         }
 144
 145         return i;
 146 }
 147
 148 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format)
 149 {
 150         int i;
 151         for (i = 0; i < ARRAY_SIZE(formats); i++) {
 152                 const struct mdp_format *f = &formats[i];
 153                 if (f->base.pixel_format == format)
 154                         return &f->base;
 155         }
 156         return NULL;
 157 }
 158
 159 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type type)
 160 {
 161         if (unlikely(WARN_ON(type >= CSC_MAX)))
 162                 return NULL;
 163
 164         return &csc_convert[type];
 165 }