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 <errno.h>
8
9 #include "drv_helpers.h"
10 #include "drv_priv.h"
11 #include "util.h"
12
13 #define INIT_DUMB_DRIVER(driver) \
14 const struct backend backend_##driver = { \
15 .name = #driver, \
16 .init = dumb_driver_init, \
17 .bo_create = drv_dumb_bo_create, \
18 .bo_create_with_modifiers = dumb_bo_create_with_modifiers, \
19 .bo_destroy = drv_dumb_bo_destroy, \
20 .bo_import = drv_prime_bo_import, \
21 .bo_map = drv_dumb_bo_map, \
22 .bo_unmap = drv_bo_munmap, \
23 .resolve_format_and_use_flags = drv_resolve_format_and_use_flags_helper, \
24 };
25
26 static const uint32_t scanout_render_formats[] = { DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888,
27 DRM_FORMAT_ABGR8888, DRM_FORMAT_XBGR8888,
28 DRM_FORMAT_BGR888, DRM_FORMAT_RGB565 };
29
30 static const uint32_t texture_only_formats[] = { DRM_FORMAT_R8, DRM_FORMAT_NV12, DRM_FORMAT_NV21,
31 DRM_FORMAT_YVU420, DRM_FORMAT_YVU420_ANDROID };
32
dumb_driver_init(struct driver * drv)33 static int dumb_driver_init(struct driver *drv)
34 {
35 drv_add_combinations(drv, scanout_render_formats, ARRAY_SIZE(scanout_render_formats),
36 &LINEAR_METADATA, BO_USE_RENDER_MASK | BO_USE_SCANOUT);
37
38 drv_add_combinations(drv, texture_only_formats, ARRAY_SIZE(texture_only_formats),
39 &LINEAR_METADATA, BO_USE_TEXTURE_MASK);
40
41 drv_modify_combination(drv, DRM_FORMAT_R8, &LINEAR_METADATA,
42 BO_USE_HW_VIDEO_ENCODER | BO_USE_HW_VIDEO_DECODER |
43 BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
44 drv_modify_combination(drv, DRM_FORMAT_NV12, &LINEAR_METADATA,
45 BO_USE_HW_VIDEO_ENCODER | BO_USE_HW_VIDEO_DECODER |
46 BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
47 drv_modify_combination(drv, DRM_FORMAT_NV21, &LINEAR_METADATA, BO_USE_HW_VIDEO_ENCODER);
48
49 return drv_modify_linear_combinations(drv);
50 }
51
dumb_bo_create_with_modifiers(struct bo * bo,uint32_t width,uint32_t height,uint32_t format,const uint64_t * modifiers,uint32_t count)52 static int dumb_bo_create_with_modifiers(struct bo *bo, uint32_t width, uint32_t height,
53 uint32_t format, const uint64_t *modifiers, uint32_t count)
54 {
55 for (uint32_t i = 0; i < count; i++) {
56 if (modifiers[i] == DRM_FORMAT_MOD_LINEAR) {
57 return drv_dumb_bo_create(bo, width, height, format, 0);
58 }
59 }
60
61 return -EINVAL;
62 }
63
64 INIT_DUMB_DRIVER(evdi)
65 INIT_DUMB_DRIVER(komeda)
66 INIT_DUMB_DRIVER(marvell)
67 INIT_DUMB_DRIVER(meson)
68 INIT_DUMB_DRIVER(nouveau)
69 INIT_DUMB_DRIVER(radeon)
70 INIT_DUMB_DRIVER(synaptics)
71 INIT_DUMB_DRIVER(udl)
72 INIT_DUMB_DRIVER(vkms)
73