LXR linux/drivers/gpu/drm/i915/display/intel

   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_encoder;
  33
  34struct opregion_header;
  35struct opregion_acpi;
  36struct opregion_swsci;
  37struct opregion_asle;
  38
  39struct 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
  59int intel_opregion_setup(struct drm_i915_private *dev_priv);
  60
  61void intel_opregion_register(struct drm_i915_private *dev_priv);
  62void intel_opregion_unregister(struct drm_i915_private *dev_priv);
  63
  64void intel_opregion_resume(struct drm_i915_private *dev_priv);
  65void intel_opregion_suspend(struct drm_i915_private *dev_priv,
  66                            pci_power_t state);
  67
  68void intel_opregion_asle_intr(struct drm_i915_private *dev_priv);
  69int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
  70                                  bool enable);
  71int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
  72                                  pci_power_t state);
  73int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
  74
  75#else /* CONFIG_ACPI*/
  76
  77static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
  78{
  79        return 0;
  80}
  81
  82static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
  83{
  84}
  85
  86static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv)
  87{
  88}
  89
  90static inline void intel_opregion_resume(struct drm_i915_private *dev_priv)
  91{
  92}
  93
  94static inline void intel_opregion_suspend(struct drm_i915_private *dev_priv,
  95                                          pci_power_t state)
  96{
  97}
  98
  99static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
 100{
 101}
 102
 103static inline int
 104intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
 105{
 106        return 0;
 107}
 108
 109static inline int
 110intel_opregion_notify_adapter(struct drm_i915_private *dev, pci_power_t state)
 111{
 112        return 0;
 113}
 114
 115static 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