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
31struct drm_i915_private;
32struct intel_connector;
33struct intel_encoder;
34
35struct opregion_header;
36struct opregion_acpi;
37struct opregion_swsci;
38struct opregion_asle;
39struct opregion_asle_ext;
40
41struct 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
62int intel_opregion_setup(struct drm_i915_private *dev_priv);
63void intel_opregion_cleanup(struct drm_i915_private *i915);
64
65void intel_opregion_register(struct drm_i915_private *dev_priv);
66void intel_opregion_unregister(struct drm_i915_private *dev_priv);
67
68void intel_opregion_resume(struct drm_i915_private *dev_priv);
69void intel_opregion_suspend(struct drm_i915_private *dev_priv,
70			    pci_power_t state);
71
72void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
73int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
74				  bool enable);
75int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
76				  pci_power_t state);
77int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
78const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector);
79
80bool intel_opregion_headless_sku(struct drm_i915_private *i915);
81
82#else /* CONFIG_ACPI*/
83
84static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
85{
86	return 0;
87}
88
89static inline void intel_opregion_cleanup(struct drm_i915_private *i915)
90{
91}
92
93static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
94{
95}
96
97static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
98{
99}
100
101static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
102{
103}
104
105static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
106					  pci_power_t state)
107{
108}
109
110static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
111{
112}
113
114static inline int
115intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
116{
117	return 0;
118}
119
120static inline int
121intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
122{
123	return 0;
124}
125
126static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev)
127{
128	return -ENODEV;
129}
130
131static inline const struct drm_edid *
132intel_opregion_get_edid(struct intel_connector *connector)
133{
134	return NULL;
135}
136
137static 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