1/*
  2 * Copyright © 2008-2017 Intel Corporation
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice (including the next
 12 * paragraph) shall be included in all copies or substantial portions of the
 13 * Software.
 14 *
 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 21 * IN THE SOFTWARE.
 22 *
 23 */
 24
 25#ifndef _INTEL_OPREGION_H_
 26#define _INTEL_OPREGION_H_
 27
 28#include <linux/pci.h>
 29#include <linux/types.h>
 30
 31struct drm_i915_private;
 32struct intel_connector;
 33struct intel_encoder;
 34
 35#ifdef CONFIG_ACPI
 36
 37int intel_opregion_setup(struct drm_i915_private *dev_priv);
 38void intel_opregion_cleanup(struct drm_i915_private *i915);
 39
 40void intel_opregion_register(struct drm_i915_private *dev_priv);
 41void intel_opregion_unregister(struct drm_i915_private *dev_priv);
 42
 43void intel_opregion_resume(struct drm_i915_private *dev_priv);
 44void intel_opregion_suspend(struct drm_i915_private *dev_priv,
 45			    pci_power_t state);
 46
 47bool intel_opregion_asle_present(struct drm_i915_private *i915);
 48void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
 49int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
 50				  bool enable);
 51int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
 52				  pci_power_t state);
 53int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
 54const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
 55
 56const void *intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size);
 57
 58bool intel_opregion_headless_sku(struct drm_i915_private *i915);
 59
 60void intel_opregion_debugfs_register(struct drm_i915_private *i915);
 61
 62#else /* CONFIG_ACPI*/
 63
 64static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
 65{
 66	return 0;
 67}
 68
 69static inline void intel_opregion_cleanup(struct drm_i915_private *i915)
 70{
 71}
 72
 73static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
 74{
 75}
 76
 77static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
 78{
 79}
 80
 81static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
 82{
 83}
 84
 85static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
 86					  pci_power_t state)
 87{
 88}
 89
 90static inline bool intel_opregion_asle_present(struct drm_i915_private *i915)
 91{
 92	return false;
 93}
 94
 95static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
 96{
 97}
 98
 99static inline int
100intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
101{
102	return 0;
103}
104
105static inline int
106intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
107{
108	return 0;
109}
110
111static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
112{
113	return -ENODEV;
114}
115
116static inline const struct drm_edid *
117intel_opregion_get_edid(struct intel_connector *connector)
118{
119	return NULL;
120}
121
122static inline const void *
123intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size)
124{
125	return NULL;
126}
127
128static inline bool intel_opregion_headless_sku(struct drm_i915_private *i915)
129{
130	return false;
131}
132
133static inline void intel_opregion_debugfs_register(struct drm_i915_private *i915)
134{
135}
136
137#endif /* CONFIG_ACPI */
138
139#endif