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