exynos/exynos_drmif.h

   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_ */