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 /**
  78  * A structure for user connection request of virtual display.
  79  *
  80  * @connection: indicate whether doing connetion or not by user.
  81  * @extensions: if this value is 1 then the vidi driver would need additional
  82  *      128bytes edid data.
  83  * @edid: the edid data pointer from user side.
  84  */
  85 struct drm_exynos_vidi_connection {
  86         unsigned int connection;
  87         unsigned int extensions;
  88         uint64_t edid;
  89 };
  90
  91 struct drm_exynos_plane_set_zpos {
  92         __u32 plane_id;
  93         __s32 zpos;
  94 };
  95
  96 /* memory type definitions. */
  97 enum e_drm_exynos_gem_mem_type {
  98         /* Physically Non-Continuous memory. */
  99         EXYNOS_BO_NONCONTIG     = 1 << 0,
 100         EXYNOS_BO_MASK          = EXYNOS_BO_NONCONTIG
 101 };
 102
 103 #define DRM_EXYNOS_GEM_CREATE           0x00
 104 #define DRM_EXYNOS_GEM_MAP_OFFSET       0x01
 105 #define DRM_EXYNOS_GEM_MMAP             0x02
 106 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
 107 #define DRM_EXYNOS_PLANE_SET_ZPOS       0x06
 108 #define DRM_EXYNOS_VIDI_CONNECTION      0x07
 109
 110 #define DRM_IOCTL_EXYNOS_GEM_CREATE             DRM_IOWR(DRM_COMMAND_BASE + \
 111                 DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
 112
 113 #define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
 114                 DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
 115
 116 #define DRM_IOCTL_EXYNOS_GEM_MMAP       DRM_IOWR(DRM_COMMAND_BASE + \
 117                 DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
 118
 119 #define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS DRM_IOWR(DRM_COMMAND_BASE + \
 120                 DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
 121
 122 #define DRM_IOCTL_EXYNOS_VIDI_CONNECTION        DRM_IOWR(DRM_COMMAND_BASE + \
 123                 DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
 124
 125 #ifdef __KERNEL__
 126
 127 /**
 128  * A structure for lcd panel information.
 129  *
 130  * @timing: default video mode for initializing
 131  * @width_mm: physical size of lcd width.
 132  * @height_mm: physical size of lcd height.
 133  */
 134 struct exynos_drm_panel_info {
 135         struct fb_videomode timing;
 136         u32 width_mm;
 137         u32 height_mm;
 138 };
 139
 140 /**
 141  * Platform Specific Structure for DRM based FIMD.
 142  *
 143  * @panel: default panel info for initializing
 144  * @default_win: default window layer number to be used for UI.
 145  * @bpp: default bit per pixel.
 146  */
 147 struct exynos_drm_fimd_pdata {
 148         struct exynos_drm_panel_info panel;
 149         u32                             vidcon0;
 150         u32                             vidcon1;
 151         unsigned int                    default_win;
 152         unsigned int                    bpp;
 153 };
 154
 155 /**
 156  * Platform Specific Structure for DRM based HDMI.
 157  *
 158  * @hdmi_dev: device point to specific hdmi driver.
 159  * @mixer_dev: device point to specific mixer driver.
 160  *
 161  * this structure is used for common hdmi driver and each device object
 162  * would be used to access specific device driver(hdmi or mixer driver)
 163  */
 164 struct exynos_drm_common_hdmi_pd {
 165         struct device *hdmi_dev;
 166         struct device *mixer_dev;
 167 };
 168
 169 /**
 170  * Platform Specific Structure for DRM based HDMI core.
 171  *
 172  * @timing: default video mode for initializing
 173  * @default_win: default window layer number to be used for UI.
 174  * @bpp: default bit per pixel.
 175  * @is_v13: set if hdmi version 13 is.
 176  */
 177 struct exynos_drm_hdmi_pdata {
 178         struct fb_videomode             timing;
 179         unsigned int                    default_win;
 180         unsigned int                    bpp;
 181         unsigned int                    is_v13:1;
 182 };
 183
 184 #endif  /* __KERNEL__ */
 185 #endif  /* _EXYNOS_DRM_H_ */