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_encoder; 33 34 struct opregion_header; 35 struct opregion_acpi; 36 struct opregion_swsci; 37 struct opregion_asle; 38 39 struct intel_opregion { 40 struct opregion_header *header; 41 struct opregion_acpi *acpi; 42 struct opregion_swsci *swsci; 43 u32 swsci_gbda_sub_functions; 44 u32 swsci_sbcb_sub_functions; 45 struct opregion_asle *asle; 46 void *rvda; 47 void *vbt_firmware; 48 const void *vbt; 49 u32 vbt_size; 50 u32 *lid_state; 51 struct work_struct asle_work; 52 struct notifier_block acpi_notifier; 53 }; 54 55 #define OPREGION_SIZE (8 * 1024) 56 57 #ifdef CONFIG_ACPI 58 59 int intel_opregion_setup(struct drm_i915_private *dev_priv); 60 61 void intel_opregion_register(struct drm_i915_private *dev_priv); 62 void intel_opregion_unregister(struct drm_i915_private *dev_priv); 63 64 void intel_opregion_resume(struct drm_i915_private *dev_priv); 65 void intel_opregion_suspend(struct drm_i915_private *dev_priv, 66 pci_power_t state); 67 68 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv); 69 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, 70 bool enable); 71 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, 72 pci_power_t state); 73 int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv); 74 75 #else /* CONFIG_ACPI*/ 76 77 static inline int intel_opregion_setup(struct drm_i915_private *dev_priv) 78 { 79 return 0; 80 } 81 82 static inline void intel_opregion_register(struct drm_i915_private *dev_priv) 83 { 84 } 85 86 static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv) 87 { 88 } 89 90 static inline void intel_opregion_resume(struct drm_i915_private *dev_priv) 91 { 92 } 93 94 static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv, 95 pci_power_t state) 96 { 97 } 98 99 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) 100 { 101 } 102 103 static inline int 104 intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable) 105 { 106 return 0; 107 } 108 109 static inline int 110 intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state) 111 { 112 return 0; 113 } 114 115 static inline int intel_opregion_get_panel_type(struct drm_i915_private *dev) 116 { 117 return -ENODEV; 118 } 119 120 #endif /* CONFIG_ACPI */ 121 122 #endif 123