drivers/gpu/drm/exynos/exynos_drm_hdmi.h

   1 /* exynos_drm_hdmi.h
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  * Authoer: Inki Dae <inki.dae@samsung.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #ifndef _EXYNOS_DRM_HDMI_H_
  27 #define _EXYNOS_DRM_HDMI_H_
  28
  29 #define MIXER_WIN_NR            3
  30 #define MIXER_DEFAULT_WIN       0
  31
  32 /*
  33  * exynos hdmi common context structure.
  34  *
  35  * @drm_dev: pointer to drm_device.
  36  * @ctx: pointer to the context of specific device driver.
  37  *      this context should be hdmi_context or mixer_context.
  38  */
  39 struct exynos_drm_hdmi_context {
  40         struct drm_device       *drm_dev;
  41         void                    *ctx;
  42 };
  43
  44 struct exynos_hdmi_ops {
  45         /* display */
  46         bool (*is_connected)(void *ctx);
  47         int (*get_edid)(void *ctx, struct drm_connector *connector,
  48                         u8 *edid, int len);
  49         int (*check_timing)(void *ctx, void *timing);
  50         int (*power_on)(void *ctx, int mode);
  51
  52         /* manager */
  53         void (*mode_fixup)(void *ctx, struct drm_connector *connector,
  54                                 const struct drm_display_mode *mode,
  55                                 struct drm_display_mode *adjusted_mode);
  56         void (*mode_set)(void *ctx, void *mode);
  57         void (*get_max_resol)(void *ctx, unsigned int *width,
  58                                 unsigned int *height);
  59         void (*commit)(void *ctx);
  60         void (*dpms)(void *ctx, int mode);
  61 };
  62
  63 struct exynos_mixer_ops {
  64         /* manager */
  65         int (*enable_vblank)(void *ctx, int pipe);
  66         void (*disable_vblank)(void *ctx);
  67         void (*dpms)(void *ctx, int mode);
  68
  69         /* overlay */
  70         void (*wait_for_vblank)(void *ctx);
  71         void (*win_mode_set)(void *ctx, struct exynos_drm_overlay *overlay);
  72         void (*win_commit)(void *ctx, int zpos);
  73         void (*win_disable)(void *ctx, int zpos);
  74 };
  75
  76 void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops);
  77 void exynos_mixer_ops_register(struct exynos_mixer_ops *ops);
  78 #endif