1 /* $NetBSD: intel_opregion.h,v 1.6 2024/04/16 14:34:01 riastradh Exp $ */
2
3 /*
4 * Copyright © 2008-2017 Intel Corporation
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 * IN THE SOFTWARE.
24 *
25 */
26
27 #ifndef _INTEL_OPREGION_H_
28 #define _INTEL_OPREGION_H_
29
30 #include <linux/workqueue.h>
31 #include <linux/pci.h>
32 #include <linux/acpi.h>
33
34 struct drm_i915_private;
35 struct intel_encoder;
36
37 struct opregion_header;
38 struct opregion_acpi;
39 struct opregion_swsci;
40 struct opregion_asle;
41
42 struct intel_opregion {
43 struct opregion_header *header;
44 struct opregion_acpi *acpi;
45 struct opregion_swsci *swsci;
46 u32 swsci_gbda_sub_functions;
47 u32 swsci_sbcb_sub_functions;
48 struct opregion_asle *asle;
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 #ifdef __NetBSD__
56 struct acpidisp_notifier *acpi_notifier;
57 #else
58 struct notifier_block acpi_notifier;
59 #endif
60 };
61
62 #define OPREGION_SIZE (8 * 1024)
63
64 #ifdef CONFIG_ACPI
65
66 int intel_opregion_setup(struct drm_i915_private *dev_priv);
67
68 void intel_opregion_register(struct drm_i915_private *dev_priv);
69 void intel_opregion_unregister(struct drm_i915_private *dev_priv);
70
71 void intel_opregion_resume(struct drm_i915_private *dev_priv);
72 void intel_opregion_suspend(struct drm_i915_private *dev_priv,
73 pci_power_t state);
74
75 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
76 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
77 bool enable);
78 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
79 pci_power_t state);
80 int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
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_register(struct drm_i915_private * dev_priv)89 static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
90 {
91 }
92
intel_opregion_unregister(struct drm_i915_private * dev_priv)93 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
94 {
95 }
96
intel_opregion_resume(struct drm_i915_private * dev_priv)97 static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
98 {
99 }
100
intel_opregion_suspend(struct drm_i915_private * dev_priv,pci_power_t state)101 static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
102 pci_power_t state)
103 {
104 }
105
intel_opregion_asle_intr(struct drm_i915_private * dev_priv)106 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
107 {
108 }
109
110 static inline int
intel_opregion_notify_encoder(struct intel_encoder * intel_encoder,bool enable)111 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
112 {
113 return 0;
114 }
115
116 static inline int
intel_opregion_notify_adapter(struct drm_i915_private * dev,pci_power_t state)117 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
118 {
119 return 0;
120 }
121
intel_opregion_get_panel_type(struct drm_i915_private * dev)122 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
123 {
124 return -ENODEV;
125 }
126
127 #endif /* CONFIG_ACPI */
128
129 #endif
130