rockchip.c

   1 /*
   2  * Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  */
   6
   7 #ifdef GBM_ROCKCHIP
   8
   9 #include <assert.h>
  10 #include <errno.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <xf86drm.h>
  14 #include <rockchip_drm.h>
  15
  16 #include "gbm_priv.h"
  17 #include "helpers.h"
  18 #include "util.h"
  19
  20 static int gbm_rockchip_bo_create(struct gbm_bo *bo,
  21                                   uint32_t width, uint32_t height,
  22                                   uint32_t format, uint32_t flags)
  23 {
  24         size_t plane;
  25
  26         switch (format) {
  27                 case GBM_FORMAT_NV12:
  28                         width = ALIGN(width, 4);
  29                         height = ALIGN(height, 4);
  30                         bo->strides[0] = bo->strides[1] = width;
  31                         bo->sizes[0] = height * bo->strides[0];
  32                         bo->sizes[1] = height * bo->strides[1] / 2;
  33                         bo->offsets[0] = 0;
  34                         bo->offsets[1] = height * bo->strides[0];
  35                         break;
  36                 case GBM_FORMAT_XRGB8888:
  37                 case GBM_FORMAT_ARGB8888:
  38                 case GBM_FORMAT_ABGR8888:
  39                         bo->strides[0] = gbm_stride_from_format(format, width);
  40                         bo->sizes[0] = height * bo->strides[0];
  41                         bo->offsets[0] = 0;
  42                         break;
  43                 default:
  44                         fprintf(stderr, "minigbm: rockchip: unsupported format %4.4s\n",
  45                                 (char*)&format);
  46                         assert(0);
  47                         return -EINVAL;
  48         }
  49
  50         int ret;
  51         size_t size = 0;
  52
  53         for (plane = 0; plane < bo->num_planes; plane++)
  54                 size += bo->sizes[plane];
  55
  56         struct drm_rockchip_gem_create gem_create;
  57
  58         memset(&gem_create, 0, sizeof(gem_create));
  59         gem_create.size = size;
  60
  61         ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_ROCKCHIP_GEM_CREATE,
  62                            &gem_create);
  63
  64         if (ret) {
  65                 fprintf(stderr, "minigbm: DRM_IOCTL_ROCKCHIP_GEM_CREATE failed "
  66                                 "(size=%zu)\n", size);
  67         }
  68         else {
  69                 for (plane = 0; plane < bo->num_planes; plane++)
  70                         bo->handles[plane].u32 = gem_create.handle;
  71         }
  72
  73         return ret;
  74 }
  75
  76 const struct gbm_driver gbm_driver_rockchip =
  77 {
  78         .name = "rockchip",
  79         .bo_create = gbm_rockchip_bo_create,
  80         .bo_destroy = gbm_gem_bo_destroy,
  81         .format_list = {
  82                 {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  83                 {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_LINEAR},
  84                 {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  85                 {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_LINEAR},
  86                 {GBM_FORMAT_ABGR8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  87                 {GBM_FORMAT_NV12, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING},
  88                 {GBM_FORMAT_NV12, GBM_BO_USE_SCANOUT | GBM_BO_USE_LINEAR},
  89         }
  90 };
  91
  92 #endif