1 /*
2  * Copyright (C) ROCKCHIP, Inc.
3  * Author:yzq<yzq@rock-chips.com>
4  *
5  * based on exynos_drmif.h
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the next
15  * paragraph) shall be included in all copies or substantial portions of the
16  * Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24  * SOFTWARE.
25  *
26  */
27 
28 #ifndef ROCKCHIP_DRMIF_H_
29 #define ROCKCHIP_DRMIF_H_
30 
31 #include <xf86drm.h>
32 #include <stdint.h>
33 #include "rockchip_drm.h"
34 
35 struct rockchip_device {
36 	int fd;
37 };
38 
39 /*
40  * Rockchip Buffer Object structure.
41  *
42  * @dev: rockchip device object allocated.
43  * @handle: a gem handle to gem object created.
44  * @flags: indicate memory allocation and cache attribute types.
45  * @size: size to the buffer created.
46  * @vaddr: user space address to a gem buffer mmaped.
47  * @name: a gem global handle from flink request.
48  */
49 struct rockchip_bo {
50 	struct rockchip_device	*dev;
51 	uint32_t		handle;
52 	uint32_t		flags;
53 	size_t			size;
54 	void			*vaddr;
55 	uint32_t		name;
56 };
57 
58 /*
59  * device related functions:
60  */
61 struct rockchip_device *rockchip_device_create(int fd);
62 void rockchip_device_destroy(struct rockchip_device *dev);
63 
64 /*
65  * buffer-object related functions:
66  */
67 struct rockchip_bo *rockchip_bo_create(struct rockchip_device *dev,
68 			size_t size, uint32_t flags);
69 int rockchip_bo_get_info(struct rockchip_device *dev, uint32_t handle,
70 			size_t *size, uint32_t *flags);
71 void rockchip_bo_destroy(struct rockchip_bo *bo);
72 struct rockchip_bo *rockchip_bo_from_name(struct rockchip_device *dev,
73 			uint32_t name);
74 int rockchip_bo_get_name(struct rockchip_bo *bo, uint32_t *name);
75 uint32_t rockchip_bo_handle(struct rockchip_bo *bo);
76 struct rockchip_bo *rockchip_bo_from_handle(struct rockchip_device *dev,
77 			uint32_t handle, uint32_t flags, uint32_t size);
78 void *rockchip_bo_map(struct rockchip_bo *bo);
79 #endif /* ROCKCHIP_DRMIF_H_ */
80