include/drm/exynos_drm.h

   1 /* exynos_drm.h
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  * Authors:
   5  *      Inki Dae <inki.dae@samsung.com>
   6  *      Joonyoung Shim <jy0922.shim@samsung.com>
   7  *      Seung-Woo Kim <sw0312.kim@samsung.com>
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the next
  17  * paragraph) shall be included in all copies or substantial portions of the
  18  * Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  23  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  24  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  25  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  26  * OTHER DEALINGS IN THE SOFTWARE.
  27  */
  28
  29 #ifndef _EXYNOS_DRM_H_
  30 #define _EXYNOS_DRM_H_
  31
  32 /**
  33  * User-desired buffer creation information structure.
  34  *
  35  * @size: user-desired memory allocation size.
  36  *      - this size value would be page-aligned internally.
  37  * @flags: user request for setting memory type or cache attributes.
  38  * @handle: returned a handle to created gem object.
  39  *      - this handle will be set by gem module of kernel side.
  40  */
  41 struct drm_exynos_gem_create {
  42         uint64_t size;
  43         unsigned int flags;
  44         unsigned int handle;
  45 };
  46
  47 /**
  48  * A structure for getting buffer offset.
  49  *
  50  * @handle: a pointer to gem object created.
  51  * @pad: just padding to be 64-bit aligned.
  52  * @offset: relatived offset value of the memory region allocated.
  53  *      - this value should be set by user.
  54  */
  55 struct drm_exynos_gem_map_off {
  56         unsigned int handle;
  57         unsigned int pad;
  58         uint64_t offset;
  59 };
  60
  61 /**
  62  * A structure for mapping buffer.
  63  *
  64  * @handle: a handle to gem object created.
  65  * @size: memory size to be mapped.
  66  * @mapped: having user virtual address mmaped.
  67  *      - this variable would be filled by exynos gem module
  68  *      of kernel side with user virtual address which is allocated
  69  *      by do_mmap().
  70  */
  71 struct drm_exynos_gem_mmap {
  72         unsigned int handle;
  73         unsigned int size;
  74         uint64_t mapped;
  75 };
  76
  77 #define DRM_EXYNOS_GEM_CREATE           0x00
  78 #define DRM_EXYNOS_GEM_MAP_OFFSET       0x01
  79 #define DRM_EXYNOS_GEM_MMAP             0x02
  80
  81 #define DRM_IOCTL_EXYNOS_GEM_CREATE             DRM_IOWR(DRM_COMMAND_BASE + \
  82                 DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
  83
  84 #define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
  85                 DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
  86
  87 #define DRM_IOCTL_EXYNOS_GEM_MMAP       DRM_IOWR(DRM_COMMAND_BASE + \
  88                 DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
  89
  90 /**
  91  * Platform Specific Structure for DRM based FIMD.
  92  *
  93  * @timing: default video mode for initializing
  94  * @default_win: default window layer number to be used for UI.
  95  * @bpp: default bit per pixel.
  96  */
  97 struct exynos_drm_fimd_pdata {
  98         struct fb_videomode             timing;
  99         u32                             vidcon0;
 100         u32                             vidcon1;
 101         unsigned int                    default_win;
 102         unsigned int                    bpp;
 103 };
 104
 105 #endif