LXR linux/drivers/gpu/drm/exynos/exynos_drm

   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
  32struct exynos_drm_overlay *get_exynos_drm_overlay(struct drm_device *dev,
  33                struct drm_crtc *crtc);
  34int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr);
  35int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
  36void 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 * @crtc_x: offset x on hardware screen.
  46 * @crtc_y: offset y on hardware screen.
  47 * @crtc_w: width of hardware screen.
  48 * @crtc_h: height of hardware screen.
  49 */
  50struct exynos_drm_crtc_pos {
  51        unsigned int fb_x;
  52        unsigned int fb_y;
  53        unsigned int crtc_x;
  54        unsigned int crtc_y;
  55        unsigned int crtc_w;
  56        unsigned int crtc_h;
  57};
  58
  59int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
  60                              struct drm_framebuffer *fb,
  61                              struct drm_display_mode *mode,
  62                              struct exynos_drm_crtc_pos *pos);
  63#endif
  64