LXR linux/include/drm/drm_crtc

   1/*
   2 * Copyright © 2006 Keith Packard
   3 * Copyright © 2007-2008 Dave Airlie
   4 * Copyright © 2007-2008 Intel Corporation
   5 *   Jesse Barnes <jesse.barnes@intel.com>
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a
   8 * copy of this software and associated documentation files (the "Software"),
   9 * to deal in the Software without restriction, including without limitation
  10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11 * and/or sell copies of the Software, and to permit persons to whom the
  12 * Software is furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the 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 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/*
  27 * The DRM mode setting helper functions are common code for drivers to use if
  28 * they wish.  Drivers are not forced to use this code in their
  29 * implementations but it would be useful if they code they do use at least
  30 * provides a consistent interface and operation to userspace
  31 */
  32
  33#ifndef __DRM_CRTC_HELPER_H__
  34#define __DRM_CRTC_HELPER_H__
  35
  36#include <linux/spinlock.h>
  37#include <linux/types.h>
  38#include <linux/idr.h>
  39
  40#include <linux/fb.h>
  41
  42#include <drm/drm_crtc.h>
  43#include <drm/drm_modeset_helper_vtables.h>
  44
  45extern void drm_helper_disable_unused_functions(struct drm_device *dev);
  46extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
  47extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
  48                                     struct drm_display_mode *mode,
  49                                     int x, int y,
  50                                     struct drm_framebuffer *old_fb);
  51extern void drm_helper_crtc_enable_color_mgmt(struct drm_crtc *crtc,
  52                                              int degamma_lut_size,
  53                                              int gamma_lut_size);
  54extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
  55extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
  56
  57extern int drm_helper_connector_dpms(struct drm_connector *connector, int mode);
  58
  59extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);
  60
  61extern void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
  62                                           const struct drm_mode_fb_cmd2 *mode_cmd);
  63
  64extern void drm_helper_resume_force_mode(struct drm_device *dev);
  65
  66int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
  67                             struct drm_display_mode *adjusted_mode, int x, int y,
  68                             struct drm_framebuffer *old_fb);
  69int drm_helper_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
  70                                  struct drm_framebuffer *old_fb);
  71
  72/* drm_probe_helper.c */
  73extern int drm_helper_probe_single_connector_modes(struct drm_connector
  74                                                   *connector, uint32_t maxX,
  75                                                   uint32_t maxY);
  76extern void drm_kms_helper_poll_init(struct drm_device *dev);
  77extern void drm_kms_helper_poll_fini(struct drm_device *dev);
  78extern bool drm_helper_hpd_irq_event(struct drm_device *dev);
  79extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
  80
  81extern void drm_kms_helper_poll_disable(struct drm_device *dev);
  82extern void drm_kms_helper_poll_enable(struct drm_device *dev);
  83extern void drm_kms_helper_poll_enable_locked(struct drm_device *dev);
  84
  85#endif
  86