dumb_driver.c

   1 /*
   2  * Copyright 2020 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 #include "drv_priv.h"
   8 #include "helpers.h"
   9 #include "util.h"
  10
  11 #define INIT_DUMB_DRIVER(driver)                                                                   \
  12         const struct backend backend_##driver = {                                                  \
  13                 .name = #driver,                                                                   \
  14                 .init = dumb_driver_init,                                                          \
  15                 .bo_create = drv_dumb_bo_create,                                                   \
  16                 .bo_destroy = drv_dumb_bo_destroy,                                                 \
  17                 .bo_import = drv_prime_bo_import,                                                  \
  18                 .bo_map = drv_dumb_bo_map,                                                         \
  19                 .bo_unmap = drv_bo_munmap,                                                         \
  20         };
  21
  22 static const uint32_t scanout_render_formats[] = { DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888,
  23                                                    DRM_FORMAT_ABGR8888, DRM_FORMAT_XBGR8888,
  24                                                    DRM_FORMAT_BGR888,   DRM_FORMAT_BGR565 };
  25
  26 static const uint32_t texture_only_formats[] = { DRM_FORMAT_NV12, DRM_FORMAT_NV21,
  27                                                  DRM_FORMAT_YVU420, DRM_FORMAT_YVU420_ANDROID };
  28
  29 static int dumb_driver_init(struct driver *drv)
  30 {
  31         drv_add_combinations(drv, scanout_render_formats, ARRAY_SIZE(scanout_render_formats),
  32                              &LINEAR_METADATA, BO_USE_RENDER_MASK | BO_USE_SCANOUT);
  33
  34         drv_add_combinations(drv, texture_only_formats, ARRAY_SIZE(texture_only_formats),
  35                              &LINEAR_METADATA, BO_USE_TEXTURE_MASK);
  36
  37         drv_modify_combination(drv, DRM_FORMAT_NV12, &LINEAR_METADATA,
  38                                BO_USE_HW_VIDEO_ENCODER | BO_USE_HW_VIDEO_DECODER |
  39                                    BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
  40         drv_modify_combination(drv, DRM_FORMAT_NV21, &LINEAR_METADATA, BO_USE_HW_VIDEO_ENCODER);
  41
  42         return drv_modify_linear_combinations(drv);
  43 }
  44
  45 INIT_DUMB_DRIVER(komeda)
  46 INIT_DUMB_DRIVER(marvell)
  47 INIT_DUMB_DRIVER(meson)
  48 INIT_DUMB_DRIVER(nouveau)
  49 INIT_DUMB_DRIVER(radeon)
  50 INIT_DUMB_DRIVER(synaptics)