Eric Lee / smarc-fsl-linux-kernel

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include/drm/drm_crtc_helper.h 3.27 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  /*
   * Copyright © 2006 Keith Packard
   * Copyright © 2007-2008 Dave Airlie
   * Copyright © 2007-2008 Intel Corporation
   *   Jesse Barnes <jesse.barnes@intel.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   * OTHER DEALINGS IN THE SOFTWARE.
   */
  
  /*
   * The DRM mode setting helper functions are common code for drivers to use if
   * they wish.  Drivers are not forced to use this code in their
   * implementations but it would be useful if they code they do use at least
   * provides a consistent interface and operation to userspace
   */
  
  #ifndef __DRM_CRTC_HELPER_H__
  #define __DRM_CRTC_HELPER_H__
  
  #include <linux/spinlock.h>
  #include <linux/types.h>
  #include <linux/idr.h>
  
  #include <linux/fb.h>
  
  #include <drm/drm_crtc.h>
  #include <drm/drm_modeset_helper_vtables.h>
  #include <drm/drm_modeset_helper.h>
  
  void drm_helper_disable_unused_functions(struct drm_device *dev);
  int drm_crtc_helper_set_config(struct drm_mode_set *set,
  			       struct drm_modeset_acquire_ctx *ctx);
  bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
  			      struct drm_display_mode *mode,
  			      int x, int y,
  			      struct drm_framebuffer *old_fb);
  bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
  bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
  
  int drm_helper_connector_dpms(struct drm_connector *connector, int mode);
  
  void drm_helper_resume_force_mode(struct drm_device *dev);
  
  int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
  			     struct drm_display_mode *adjusted_mode, int x, int y,
  			     struct drm_framebuffer *old_fb);
  int drm_helper_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
  				  struct drm_framebuffer *old_fb);
  
  /* drm_probe_helper.c */
  int drm_helper_probe_single_connector_modes(struct drm_connector
  					    *connector, uint32_t maxX,
  					    uint32_t maxY);
  int drm_helper_probe_detect(struct drm_connector *connector,
  			    struct drm_modeset_acquire_ctx *ctx,
  			    bool force);
  void drm_kms_helper_poll_init(struct drm_device *dev);
  void drm_kms_helper_poll_fini(struct drm_device *dev);
  bool drm_helper_hpd_irq_event(struct drm_device *dev);
  void drm_kms_helper_hotplug_event(struct drm_device *dev);
  
  void drm_kms_helper_poll_disable(struct drm_device *dev);
  void drm_kms_helper_poll_enable(struct drm_device *dev);
  bool drm_kms_helper_is_poll_worker(void);
  
  #endif