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/workqueue.h>
29 #include <linux/pci.h>
30
31 struct drm_i915_private;
32 struct intel_connector;
33 struct intel_encoder;
34
35 struct opregion_header;
36 struct opregion_acpi;
37 struct opregion_swsci;
38 struct opregion_asle;
39 struct opregion_asle_ext;
40
41 struct intel_opregion {
42 struct opregion_header *header;
43 struct opregion_acpi *acpi;
44 struct opregion_swsci *swsci;
45 u32 swsci_gbda_sub_functions;
46 u32 swsci_sbcb_sub_functions;
47 struct opregion_asle *asle;
48 struct opregion_asle_ext *asle_ext;
49 void *rvda;
50 void *vbt_firmware;
51 const void *vbt;
52 u32 vbt_size;
53 u32 *lid_state;
54 struct work_struct asle_work;
55 struct notifier_block acpi_notifier;
56 };
57
58 #define OPREGION_SIZE (8 * 1024)
59
60 #ifdef CONFIG_ACPI
61
62 int intel_opregion_setup(struct drm_i915_private *dev_priv);
63 void intel_opregion_cleanup(struct drm_i915_private *i915);
64
65 void intel_opregion_register(struct drm_i915_private *dev_priv);
66 void intel_opregion_unregister(struct drm_i915_private *dev_priv);
67
68 void intel_opregion_resume(struct drm_i915_private *dev_priv);
69 void intel_opregion_suspend(struct drm_i915_private *dev_priv,
70 pci_power_t state);
71
72 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
73 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
74 bool enable);
75 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
76 pci_power_t state);
77 int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
78 const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
79
80 bool intel_opregion_headless_sku(struct drm_i915_private *i915);
81
82 #else /* CONFIG_ACPI*/
83
intel_opregion_setup(struct drm_i915_private * dev_priv)84 static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
85 {
86 return 0;
87 }
88
intel_opregion_cleanup(struct drm_i915_private * i915)89 static inline void intel_opregion_cleanup(struct drm_i915_private *i915)
90 {
91 }
92
intel_opregion_register(struct drm_i915_private * dev_priv)93 static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
94 {
95 }
96
intel_opregion_unregister(struct drm_i915_private * dev_priv)97 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
98 {
99 }
100
intel_opregion_resume(struct drm_i915_private * dev_priv)101 static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
102 {
103 }
104
intel_opregion_suspend(struct drm_i915_private * dev_priv,pci_power_t state)105 static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
106 pci_power_t state)
107 {
108 }
109
intel_opregion_asle_intr(struct drm_i915_private * dev_priv)110 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
111 {
112 }
113
114 static inline int
intel_opregion_notify_encoder(struct intel_encoder * intel_encoder,bool enable)115 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
116 {
117 return 0;
118 }
119
120 static inline int
intel_opregion_notify_adapter(struct drm_i915_private * dev,pci_power_t state)121 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
122 {
123 return 0;
124 }
125
intel_opregion_get_panel_type(struct drm_i915_private * dev)126 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
127 {
128 return -ENODEV;
129 }
130
131 static inline const struct drm_edid *
intel_opregion_get_edid(struct intel_connector * connector)132 intel_opregion_get_edid(struct intel_connector *connector)
133 {
134 return NULL;
135 }
136
intel_opregion_headless_sku(struct drm_i915_private * i915)137 static inline bool intel_opregion_headless_sku(struct drm_i915_private *i915)
138 {
139 return false;
140 }
141
142 #endif /* CONFIG_ACPI */
143
144 #endif
145