2 * Copyright 2015 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.
13 #include <mediatek_drm.h>
18 static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height,
19 uint32_t format, uint32_t flags)
23 struct drm_mtk_gem_create gem_create;
25 drv_bo_from_format(bo, width, height, format);
27 memset(&gem_create, 0, sizeof(gem_create));
28 gem_create.size = bo->total_size;
30 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_CREATE, &gem_create);
32 fprintf(stderr, "drv: DRM_IOCTL_MTK_GEM_CREATE failed "
33 "(size=%llu)\n", gem_create.size);
37 for (plane = 0; plane < bo->num_planes; plane++)
38 bo->handles[plane].u32 = gem_create.handle;
43 static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane)
46 struct drm_mtk_gem_map_off gem_map;
48 memset(&gem_map, 0, sizeof(gem_map));
49 gem_map.handle = bo->handles[0].u32;
51 ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_MAP_OFFSET, &gem_map);
53 fprintf(stderr,"drv: DRM_IOCTL_MTK_GEM_MAP_OFFSET failed\n");
57 data->length = bo->total_size;
59 return mmap(0, bo->total_size, PROT_READ | PROT_WRITE, MAP_SHARED,
60 bo->drv->fd, gem_map.offset);
63 static uint32_t mediatek_resolve_format(uint32_t format)
66 case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
67 /*HACK: See b/28671744 */
68 return DRM_FORMAT_XBGR8888;
69 case DRM_FORMAT_FLEX_YCbCr_420_888:
70 return DRM_FORMAT_YVU420;
76 const struct backend backend_mediatek =
79 .bo_create = mediatek_bo_create,
80 .bo_destroy = drv_gem_bo_destroy,
81 .bo_map = mediatek_bo_map,
82 .resolve_format = mediatek_resolve_format,
84 {DRM_FORMAT_XRGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_RENDERING
85 | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
86 {DRM_FORMAT_XRGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_LINEAR
87 | DRV_BO_USE_SW_READ_OFTEN | DRV_BO_USE_SW_WRITE_OFTEN},
88 {DRM_FORMAT_ARGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_RENDERING
89 | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
90 {DRM_FORMAT_ARGB8888, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_LINEAR |
91 DRV_BO_USE_SW_READ_OFTEN | DRV_BO_USE_SW_WRITE_OFTEN},
92 {DRM_FORMAT_ABGR8888, DRV_BO_USE_RENDERING
93 | DRV_BO_USE_SW_READ_OFTEN | DRV_BO_USE_SW_WRITE_OFTEN
94 | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
95 {DRM_FORMAT_XBGR8888, DRV_BO_USE_RENDERING
96 | DRV_BO_USE_SW_READ_OFTEN | DRV_BO_USE_SW_WRITE_OFTEN
97 | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
98 {DRM_FORMAT_RGB565, DRV_BO_USE_SCANOUT | DRV_BO_USE_CURSOR | DRV_BO_USE_RENDERING
99 | DRV_BO_USE_SW_READ_RARELY | DRV_BO_USE_SW_WRITE_RARELY},
100 {DRM_FORMAT_YVU420, DRV_BO_USE_RENDERING | DRV_BO_USE_SW_READ_RARELY |
101 DRV_BO_USE_SW_WRITE_RARELY},