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] = bo->offsets[1] = 0;
  34                 break;
  35         case GBM_FORMAT_XRGB8888:
  36         case GBM_FORMAT_ARGB8888:
  37         case GBM_FORMAT_ABGR8888:
  38                 bo->strides[0] = gbm_stride_from_format(format, width);
  39                 bo->sizes[0] = height * bo->strides[0];
  40                 bo->offsets[0] = 0;
  41                 break;
  42         default:
  43                 fprintf(stderr, "minigbm: rockchip: unsupported format %4.4s\n",
  44                         (char*)&format);
  45                 assert(0);
  46                 return -EINVAL;
  47         }
  48
  49         int ret;
  50         for (plane = 0; plane < bo->num_planes; plane++) {
  51                 size_t size = bo->sizes[plane];
  52                 struct drm_rockchip_gem_create gem_create;
  53
  54                 memset(&gem_create, 0, sizeof(gem_create));
  55                 gem_create.size = size;
  56
  57                 ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_ROCKCHIP_GEM_CREATE,
  58                                &gem_create);
  59                 if (ret) {
  60                         fprintf(stderr, "minigbm: DRM_IOCTL_ROCKCHIP_GEM_CREATE failed "
  61                                         "(size=%zu)\n", size);
  62                         goto cleanup_planes;
  63                 }
  64
  65                 bo->handles[plane].u32 = gem_create.handle;
  66         }
  67
  68         return 0;
  69
  70 cleanup_planes:
  71         for ( ; plane != 0; plane--) {
  72                 struct drm_gem_close gem_close;
  73                 memset(&gem_close, 0, sizeof(gem_close));
  74                 gem_close.handle = bo->handles[plane - 1].u32;
  75                 int gem_close_ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_GEM_CLOSE,
  76                                              &gem_close);
  77                 if (gem_close_ret) {
  78                         fprintf(stderr,
  79                                 "minigbm: DRM_IOCTL_GEM_CLOSE failed: %d\n",
  80                                 gem_close_ret);
  81                 }
  82         }
  83
  84         return ret;
  85 }
  86
  87 const struct gbm_driver gbm_driver_rockchip =
  88 {
  89         .name = "rockchip",
  90         .bo_create = gbm_rockchip_bo_create,
  91         .bo_destroy = gbm_gem_bo_destroy,
  92         .format_list = {
  93                 {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  94                 {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_LINEAR},
  95                 {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  96                 {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_LINEAR},
  97                 {GBM_FORMAT_ABGR8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING},
  98                 {GBM_FORMAT_NV12, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING},
  99                 {GBM_FORMAT_NV12, GBM_BO_USE_SCANOUT | GBM_BO_USE_LINEAR},
 100         }
 101 };
 102
 103 #endif