xref: /linux/drivers/gpu/drm/i915/display/intel_opregion.h (revision eb01fe7abbe2d0b38824d2a93fdb4cc3eaf2ccc1) 
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 drm_i915_private;
32 struct intel_connector;
33 struct intel_encoder;
34 
35 #ifdef CONFIG_ACPI
36 
37 int intel_opregion_setup(struct drm_i915_private *dev_priv);
38 void intel_opregion_cleanup(struct drm_i915_private *i915);
39 
40 void intel_opregion_register(struct drm_i915_private *dev_priv);
41 void intel_opregion_unregister(struct drm_i915_private *dev_priv);
42 
43 void intel_opregion_resume(struct drm_i915_private *dev_priv);
44 void intel_opregion_suspend(struct drm_i915_private *dev_priv,
45 			    pci_power_t state);
46 
47 bool intel_opregion_asle_present(struct drm_i915_private *i915);
48 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
49 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
50 				  bool enable);
51 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
52 				  pci_power_t state);
53 int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
54 const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
55 
56 const void *intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size);
57 
58 bool intel_opregion_headless_sku(struct drm_i915_private *i915);
59 
60 void intel_opregion_debugfs_register(struct drm_i915_private *i915);
61 
62 #else /* CONFIG_ACPI*/
63 
64 static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
65 {
66 	return 0;
67 }
68 
69 static inline void intel_opregion_cleanup(struct drm_i915_private *i915)
70 {
71 }
72 
73 static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
74 {
75 }
76 
77 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
78 {
79 }
80 
81 static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
82 {
83 }
84 
85 static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
86 					  pci_power_t state)
87 {
88 }
89 
90 static inline bool intel_opregion_asle_present(struct drm_i915_private *i915)
91 {
92 	return false;
93 }
94 
95 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
96 {
97 }
98 
99 static inline int
100 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
101 {
102 	return 0;
103 }
104 
105 static inline int
106 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
107 {
108 	return 0;
109 }
110 
111 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
112 {
113 	return -ENODEV;
114 }
115 
116 static inline const struct drm_edid *
117 intel_opregion_get_edid(struct intel_connector *connector)
118 {
119 	return NULL;
120 }
121 
122 static inline const void *
123 intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size)
124 {
125 	return NULL;
126 }
127 
128 static inline bool intel_opregion_headless_sku(struct drm_i915_private *i915)
129 {
130 	return false;
131 }
132 
133 static inline void intel_opregion_debugfs_register(struct drm_i915_private *i915)
134 {
135 }
136 
137 #endif /* CONFIG_ACPI */
138 
139 #endif
140