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 64 void intel_opregion_register(struct drm_i915_private *dev_priv); 65 void intel_opregion_unregister(struct drm_i915_private *dev_priv); 66 67 void intel_opregion_resume(struct drm_i915_private *dev_priv); 68 void intel_opregion_suspend(struct drm_i915_private *dev_priv, 69 pci_power_t state); 70 71 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv); 72 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, 73 bool enable); 74 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, 75 pci_power_t state); 76 int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv); 77 struct edid *intel_opregion_get_edid(struct intel_connector *connector); 78 79 #else /* CONFIG_ACPI*/ 80 81 static inline int intel_opregion_setup(struct drm_i915_private *dev_priv) 82 { 83 return 0; 84 } 85 86 static inline void intel_opregion_register(struct drm_i915_private *dev_priv) 87 { 88 } 89 90 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv) 91 { 92 } 93 94 static inline void intel_opregion_resume(struct drm_i915_private *dev_priv) 95 { 96 } 97 98 static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv, 99 pci_power_t state) 100 { 101 } 102 103 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) 104 { 105 } 106 107 static inline int 108 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable) 109 { 110 return 0; 111 } 112 113 static inline int 114 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state) 115 { 116 return 0; 117 } 118 119 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev) 120 { 121 return -ENODEV; 122 } 123 124 static inline struct edid * 125 intel_opregion_get_edid(struct intel_connector *connector) 126 { 127 return NULL; 128 } 129 130 #endif /* CONFIG_ACPI */ 131 132 #endif 133