/*
   * Internal Header for the Direct Rendering Manager
   *
   * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   * Copyright (c) 2009-2010, Code Aurora Forum.
   * All rights reserved.
   *
   * Author: Rickard E. (Rik) Faith <faith@valinux.com>
   * Author: Gareth Hughes <gareth@valinux.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 (including the next
   * paragraph) 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
   * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
   */
  
  #ifndef _DRM_DEBUGFS_H_
  #define _DRM_DEBUGFS_H_
  
  /**

   * struct drm_info_list - debugfs info list entry
   *
   * This structure represents a debugfs file to be created by the drm
   * core.

   */
  struct drm_info_list {

  	/** @name: file name */
  	const char *name;
  	/**
  	 * @show:
  	 *
  	 * Show callback. &seq_file->private will be set to the &struct
  	 * drm_info_node corresponding to the instance of this info on a given
  	 * &struct drm_minor.
  	 */
  	int (*show)(struct seq_file*, void*);
  	/** @driver_features: Required driver features for this entry */
  	u32 driver_features;
  	/** @data: Driver-private data, should not be device-specific. */

  	void *data;
  };
  
  /**

   * struct drm_info_node - Per-minor debugfs node structure
   *
   * This structure represents a debugfs file, as an instantiation of a &struct
   * drm_info_list on a &struct drm_minor.
   *
   * FIXME:
   *
   * No it doesn't make a hole lot of sense that we duplicate debugfs entries for
   * both the render and the primary nodes, but that's how this has organically
   * grown. It should probably be fixed, with a compatibility link, if needed.

   */
  struct drm_info_node {

  	/** @minor: &struct drm_minor for this node. */

  	struct drm_minor *minor;

  	/** @info_ent: template for this node. */

  	const struct drm_info_list *info_ent;

  	/* private: */
  	struct list_head list;

  	struct dentry *dent;
  };
  
  #if defined(CONFIG_DEBUG_FS)
  int drm_debugfs_create_files(const struct drm_info_list *files,
  			     int count, struct dentry *root,
  			     struct drm_minor *minor);
  int drm_debugfs_remove_files(const struct drm_info_list *files,
  			     int count, struct drm_minor *minor);
  #else
  static inline int drm_debugfs_create_files(const struct drm_info_list *files,
  					   int count, struct dentry *root,
  					   struct drm_minor *minor)
  {
  	return 0;
  }
  
  static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
  					   int count, struct drm_minor *minor)
  {
  	return 0;
  }
  #endif
  
  #endif /* _DRM_DEBUGFS_H_ */