drivers/gpu/drm/exynos/exynos_drm_crtc.h

   1 /* exynos_drm_crtc.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_CRTC_H_
  30 #define _EXYNOS_DRM_CRTC_H_
  31
  32 struct exynos_drm_overlay *get_exynos_drm_overlay(struct drm_device *dev,
  33                 struct drm_crtc *crtc);
  34 int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr);
  35 int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
  36 void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
  37
  38 /*
  39  * Exynos specific crtc postion structure.
  40  *
  41  * @fb_x: offset x on a framebuffer to be displyed
  42  *      - the unit is screen coordinates.
  43  * @fb_y: offset y on a framebuffer to be displayed
  44  *      - the unit is screen coordinates.
  45  * @src_w: width of source area to be displayed from a framebuffer.
  46  * @src_h: height of source area to be displayed from a framebuffer.
  47  * @crtc_x: offset x on hardware screen.
  48  * @crtc_y: offset y on hardware screen.
  49  * @crtc_w: width of hardware screen.
  50  * @crtc_h: height of hardware screen.
  51  */
  52 struct exynos_drm_crtc_pos {
  53         unsigned int fb_x;
  54         unsigned int fb_y;
  55         unsigned int src_w;
  56         unsigned int src_h;
  57         unsigned int crtc_x;
  58         unsigned int crtc_y;
  59         unsigned int crtc_w;
  60         unsigned int crtc_h;
  61 };
  62
  63 int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
  64                               struct drm_framebuffer *fb,
  65                               struct drm_display_mode *mode,
  66                               struct exynos_drm_crtc_pos *pos);
  67 #endif