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 intel_connector;
 32struct intel_display;
 33struct intel_encoder;
 34
 35#ifdef CONFIG_ACPI
 36
 37int intel_opregion_setup(struct intel_display *display);
 38void intel_opregion_cleanup(struct intel_display *display);
 39
 40void intel_opregion_register(struct intel_display *display);
 41void intel_opregion_unregister(struct intel_display *display);
 42
 43void intel_opregion_resume(struct intel_display *display);
 44void intel_opregion_suspend(struct intel_display *display,
 45			    pci_power_t state);
 46
 47bool intel_opregion_asle_present(struct intel_display *display);
 48void intel_opregion_asle_intr(struct intel_display *display);
 49int intel_opregion_notify_encoder(struct intel_encoder *encoder,
 50				  bool enable);
 51int intel_opregion_notify_adapter(struct intel_display *display,
 52				  pci_power_t state);
 53int intel_opregion_get_panel_type(struct intel_display *display);
 54const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
 55
 56bool intel_opregion_vbt_present(struct intel_display *display);
 57const void *intel_opregion_get_vbt(struct intel_display *display, size_t *size);
 58
 59bool intel_opregion_headless_sku(struct intel_display *display);
 60
 61void intel_opregion_debugfs_register(struct intel_display *display);
 62
 63#else /* CONFIG_ACPI*/
 64
 65static inline int intel_opregion_setup(struct intel_display *display)
 66{
 67	return 0;
 68}
 69
 70static inline void intel_opregion_cleanup(struct intel_display *display)
 71{
 72}
 73
 74static inline void intel_opregion_register(struct intel_display *display)
 75{
 76}
 77
 78static inline void intel_opregion_unregister(struct intel_display *display)
 79{
 80}
 81
 82static inline void intel_opregion_resume(struct intel_display *display)
 83{
 84}
 85
 86static inline void intel_opregion_suspend(struct intel_display *display,
 87					  pci_power_t state)
 88{
 89}
 90
 91static inline bool intel_opregion_asle_present(struct intel_display *display)
 92{
 93	return false;
 94}
 95
 96static inline void intel_opregion_asle_intr(struct intel_display *display)
 97{
 98}
 99
100static inline int
101intel_opregion_notify_encoder(struct intel_encoder *encoder, bool enable)
102{
103	return 0;
104}
105
106static inline int
107intel_opregion_notify_adapter(struct intel_display *display, pci_power_t state)
108{
109	return 0;
110}
111
112static inline int intel_opregion_get_panel_type(struct intel_display *display)
113{
114	return -ENODEV;
115}
116
117static inline const struct drm_edid *
118intel_opregion_get_edid(struct intel_connector *connector)
119{
120	return NULL;
121}
122
123static inline bool intel_opregion_vbt_present(struct intel_display *display)
124{
125	return false;
126}
127
128static inline const void *
129intel_opregion_get_vbt(struct intel_display *display, size_t *size)
130{
131	return NULL;
132}
133
134static inline bool intel_opregion_headless_sku(struct intel_display *display)
135{
136	return false;
137}
138
139static inline void intel_opregion_debugfs_register(struct intel_display *display)
140{
141}
142
143#endif /* CONFIG_ACPI */
144
145#endif