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
146

source code of linux/drivers/gpu/drm/i915/display/intel_opregion.h