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
31 struct intel_connector;
32 struct intel_display;
33 struct intel_encoder;
34
35 #ifdef CONFIG_ACPI
36
37 int intel_opregion_setup(struct intel_display *display);
38 void intel_opregion_cleanup(struct intel_display *display);
39
40 void intel_opregion_register(struct intel_display *display);
41 void intel_opregion_unregister(struct intel_display *display);
42
43 void intel_opregion_resume(struct intel_display *display);
44 void intel_opregion_suspend(struct intel_display *display,
45 pci_power_t state);
46
47 bool intel_opregion_asle_present(struct intel_display *display);
48 void intel_opregion_asle_intr(struct intel_display *display);
49 int intel_opregion_notify_encoder(struct intel_encoder *encoder,
50 bool enable);
51 int intel_opregion_notify_adapter(struct intel_display *display,
52 pci_power_t state);
53 int intel_opregion_get_panel_type(struct intel_display *display);
54 const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
55
56 bool intel_opregion_vbt_present(struct intel_display *display);
57 const void *intel_opregion_get_vbt(struct intel_display *display, size_t *size);
58
59 bool intel_opregion_headless_sku(struct intel_display *display);
60
61 void intel_opregion_debugfs_register(struct intel_display *display);
62
63 #else /* CONFIG_ACPI*/
64
intel_opregion_setup(struct intel_display * display)65 static inline int intel_opregion_setup(struct intel_display *display)
66 {
67 return 0;
68 }
69
intel_opregion_cleanup(struct intel_display * display)70 static inline void intel_opregion_cleanup(struct intel_display *display)
71 {
72 }
73
intel_opregion_register(struct intel_display * display)74 static inline void intel_opregion_register(struct intel_display *display)
75 {
76 }
77
intel_opregion_unregister(struct intel_display * display)78 static inline void intel_opregion_unregister(struct intel_display *display)
79 {
80 }
81
intel_opregion_resume(struct intel_display * display)82 static inline void intel_opregion_resume(struct intel_display *display)
83 {
84 }
85
intel_opregion_suspend(struct intel_display * display,pci_power_t state)86 static inline void intel_opregion_suspend(struct intel_display *display,
87 pci_power_t state)
88 {
89 }
90
intel_opregion_asle_present(struct intel_display * display)91 static inline bool intel_opregion_asle_present(struct intel_display *display)
92 {
93 return false;
94 }
95
intel_opregion_asle_intr(struct intel_display * display)96 static inline void intel_opregion_asle_intr(struct intel_display *display)
97 {
98 }
99
100 static inline int
intel_opregion_notify_encoder(struct intel_encoder * encoder,bool enable)101 intel_opregion_notify_encoder(struct intel_encoder *encoder, bool enable)
102 {
103 return 0;
104 }
105
106 static inline int
intel_opregion_notify_adapter(struct intel_display * display,pci_power_t state)107 intel_opregion_notify_adapter(struct intel_display *display, pci_power_t state)
108 {
109 return 0;
110 }
111
intel_opregion_get_panel_type(struct intel_display * display)112 static inline int intel_opregion_get_panel_type(struct intel_display *display)
113 {
114 return -ENODEV;
115 }
116
117 static inline const struct drm_edid *
intel_opregion_get_edid(struct intel_connector * connector)118 intel_opregion_get_edid(struct intel_connector *connector)
119 {
120 return NULL;
121 }
122
intel_opregion_vbt_present(struct intel_display * display)123 static inline bool intel_opregion_vbt_present(struct intel_display *display)
124 {
125 return false;
126 }
127
128 static inline const void *
intel_opregion_get_vbt(struct intel_display * display,size_t * size)129 intel_opregion_get_vbt(struct intel_display *display, size_t *size)
130 {
131 return NULL;
132 }
133
intel_opregion_headless_sku(struct intel_display * display)134 static inline bool intel_opregion_headless_sku(struct intel_display *display)
135 {
136 return false;
137 }
138
intel_opregion_debugfs_register(struct intel_display * display)139 static inline void intel_opregion_debugfs_register(struct intel_display *display)
140 {
141 }
142
143 #endif /* CONFIG_ACPI */
144
145 #endif
146