1 /*
2  * Copyright (C) 2012 Samsung Electronics Co., Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  *
23  * Authors:
24  *    Inki Dae <inki.dae@samsung.com>
25  */
26 
27 #ifndef EXYNOS_DRMIF_H_
28 #define EXYNOS_DRMIF_H_
29 
30 #include <xf86drm.h>
31 #include <stdint.h>
32 #include "exynos_drm.h"
33 
34 #if defined(__cplusplus)
35 extern "C" {
36 #endif
37 
38 struct exynos_device {
39 	int fd;
40 };
41 
42 /*
43  * Exynos Buffer Object structure.
44  *
45  * @dev: exynos device object allocated.
46  * @handle: a gem handle to gem object created.
47  * @flags: indicate memory allocation and cache attribute types.
48  * @size: size to the buffer created.
49  * @vaddr: user space address to a gem buffer mmapped.
50  * @name: a gem global handle from flink request.
51  */
52 struct exynos_bo {
53 	struct exynos_device	*dev;
54 	uint32_t		handle;
55 	uint32_t		flags;
56 	size_t			size;
57 	void			*vaddr;
58 	uint32_t		name;
59 };
60 
61 #define EXYNOS_EVENT_CONTEXT_VERSION 1
62 
63 /*
64  * Exynos Event Context structure.
65  *
66  * @base: base context (for core events).
67  * @version: version info similar to the one in 'drmEventContext'.
68  * @g2d_event_handler: handler for G2D events.
69  */
70 struct exynos_event_context {
71 	drmEventContext base;
72 
73 	int version;
74 
75 	void (*g2d_event_handler)(int fd, unsigned int cmdlist_no,
76 							  unsigned int tv_sec, unsigned int tv_usec,
77 							  void *user_data);
78 };
79 
80 /*
81  * device related functions:
82  */
83 struct exynos_device * exynos_device_create(int fd);
84 void exynos_device_destroy(struct exynos_device *dev);
85 
86 /*
87  * buffer-object related functions:
88  */
89 struct exynos_bo * exynos_bo_create(struct exynos_device *dev,
90 		size_t size, uint32_t flags);
91 int exynos_bo_get_info(struct exynos_device *dev, uint32_t handle,
92 			size_t *size, uint32_t *flags);
93 void exynos_bo_destroy(struct exynos_bo *bo);
94 struct exynos_bo * exynos_bo_from_name(struct exynos_device *dev, uint32_t name);
95 int exynos_bo_get_name(struct exynos_bo *bo, uint32_t *name);
96 uint32_t exynos_bo_handle(struct exynos_bo *bo);
97 void * exynos_bo_map(struct exynos_bo *bo);
98 int exynos_prime_handle_to_fd(struct exynos_device *dev, uint32_t handle,
99 					int *fd);
100 int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd,
101 					uint32_t *handle);
102 
103 /*
104  * Virtual Display related functions:
105  */
106 int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect,
107 				uint32_t ext, void *edid);
108 
109 /*
110  * event handling related functions:
111  */
112 int exynos_handle_event(struct exynos_device *dev,
113 				struct exynos_event_context *ctx);
114 
115 
116 #if defined(__cplusplus)
117 }
118 #endif
119 
120 #endif /* EXYNOS_DRMIF_H_ */
121