drivers/acpi/internal.h

   1 /*
   2  * acpi/internal.h
   3  * For use by Linux/ACPI infrastructure, not drivers
   4  *
   5  * Copyright (c) 2009, Intel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms and conditions of the GNU General Public License,
   9  * version 2, as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  */
  17
  18 #ifndef _ACPI_INTERNAL_H_
  19 #define _ACPI_INTERNAL_H_
  20
  21 #define PREFIX "ACPI: "
  22
  23 acpi_status acpi_os_initialize1(void);
  24 void init_acpi_device_notify(void);
  25 int acpi_scan_init(void);
  26 void acpi_pci_root_init(void);
  27 void acpi_pci_link_init(void);
  28 void acpi_processor_init(void);
  29 void acpi_platform_init(void);
  30 void acpi_pnp_init(void);
  31 void acpi_int340x_thermal_init(void);
  32 int acpi_sysfs_init(void);
  33 void acpi_container_init(void);
  34 void acpi_memory_hotplug_init(void);
  35 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  36 int acpi_ioapic_add(struct acpi_pci_root *root);
  37 int acpi_ioapic_remove(struct acpi_pci_root *root);
  38 #else
  39 static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; }
  40 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  41 #endif
  42 #ifdef CONFIG_ACPI_DOCK
  43 void register_dock_dependent_device(struct acpi_device *adev,
  44                                     acpi_handle dshandle);
  45 int dock_notify(struct acpi_device *adev, u32 event);
  46 void acpi_dock_add(struct acpi_device *adev);
  47 #else
  48 static inline void register_dock_dependent_device(struct acpi_device *adev,
  49                                                   acpi_handle dshandle) {}
  50 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  51 static inline void acpi_dock_add(struct acpi_device *adev) {}
  52 #endif
  53 #ifdef CONFIG_X86
  54 void acpi_cmos_rtc_init(void);
  55 #else
  56 static inline void acpi_cmos_rtc_init(void) {}
  57 #endif
  58 int acpi_rev_override_setup(char *str);
  59
  60 extern bool acpi_force_hot_remove;
  61
  62 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  63                                     const char *name);
  64 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  65                                        const char *hotplug_profile_name);
  66 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  67
  68 #ifdef CONFIG_DEBUG_FS
  69 extern struct dentry *acpi_debugfs_dir;
  70 void acpi_debugfs_init(void);
  71 #else
  72 static inline void acpi_debugfs_init(void) { return; }
  73 #endif
  74 void acpi_lpss_init(void);
  75
  76 void acpi_apd_init(void);
  77
  78 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  79 bool acpi_queue_hotplug_work(struct work_struct *work);
  80 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  81 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  82
  83 /* --------------------------------------------------------------------------
  84                      Device Node Initialization / Removal
  85    -------------------------------------------------------------------------- */
  86 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  87                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  88
  89 int acpi_device_add(struct acpi_device *device,
  90                     void (*release)(struct device *));
  91 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  92                              int type, unsigned long long sta);
  93 int acpi_device_setup_files(struct acpi_device *dev);
  94 void acpi_device_remove_files(struct acpi_device *dev);
  95 void acpi_device_add_finalize(struct acpi_device *device);
  96 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  97 bool acpi_device_is_present(struct acpi_device *adev);
  98 bool acpi_device_is_battery(struct acpi_device *adev);
  99 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 100                                         const struct device *dev);
 101
 102 /* --------------------------------------------------------------------------
 103                      Device Matching and Notification
 104    -------------------------------------------------------------------------- */
 105 struct acpi_device *acpi_companion_match(const struct device *dev);
 106 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 107                                   struct kobj_uevent_env *env);
 108
 109 /* --------------------------------------------------------------------------
 110                                   Power Resource
 111    -------------------------------------------------------------------------- */
 112 int acpi_power_init(void);
 113 void acpi_power_resources_list_free(struct list_head *list);
 114 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 115                                  struct list_head *list);
 116 int acpi_add_power_resource(acpi_handle handle);
 117 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 118 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 119 int acpi_device_sleep_wake(struct acpi_device *dev,
 120                            int enable, int sleep_state, int dev_state);
 121 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 122 int acpi_power_on_resources(struct acpi_device *device, int state);
 123 int acpi_power_transition(struct acpi_device *device, int state);
 124
 125 int acpi_wakeup_device_init(void);
 126
 127 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 128 void acpi_early_processor_set_pdc(void);
 129 #else
 130 static inline void acpi_early_processor_set_pdc(void) {}
 131 #endif
 132
 133 #ifdef CONFIG_X86
 134 void acpi_early_processor_osc(void);
 135 #else
 136 static inline void acpi_early_processor_osc(void) {}
 137 #endif
 138
 139 /* --------------------------------------------------------------------------
 140                                   Embedded Controller
 141    -------------------------------------------------------------------------- */
 142 struct acpi_ec {
 143         acpi_handle handle;
 144         unsigned long gpe;
 145         unsigned long command_addr;
 146         unsigned long data_addr;
 147         bool global_lock;
 148         unsigned long flags;
 149         unsigned long reference_count;
 150         struct mutex mutex;
 151         wait_queue_head_t wait;
 152         struct list_head list;
 153         struct transaction *curr;
 154         spinlock_t lock;
 155         struct work_struct work;
 156         unsigned long timestamp;
 157         unsigned long nr_pending_queries;
 158 };
 159
 160 extern struct acpi_ec *first_ec;
 161
 162 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 163 /* External interfaces use first EC only, so remember */
 164 typedef int (*acpi_ec_query_func) (void *data);
 165
 166 int acpi_ec_init(void);
 167 int acpi_ec_ecdt_probe(void);
 168 int acpi_boot_ec_enable(void);
 169 void acpi_ec_block_transactions(void);
 170 void acpi_ec_unblock_transactions(void);
 171 void acpi_ec_unblock_transactions_early(void);
 172 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 173                               acpi_handle handle, acpi_ec_query_func func,
 174                               void *data);
 175 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 176
 177
 178 /*--------------------------------------------------------------------------
 179                                   Suspend/Resume
 180   -------------------------------------------------------------------------- */
 181 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 182 extern int acpi_sleep_init(void);
 183 #else
 184 static inline int acpi_sleep_init(void) { return -ENXIO; }
 185 #endif
 186
 187 #ifdef CONFIG_ACPI_SLEEP
 188 void acpi_sleep_proc_init(void);
 189 int suspend_nvs_alloc(void);
 190 void suspend_nvs_free(void);
 191 int suspend_nvs_save(void);
 192 void suspend_nvs_restore(void);
 193 #else
 194 static inline void acpi_sleep_proc_init(void) {}
 195 static inline int suspend_nvs_alloc(void) { return 0; }
 196 static inline void suspend_nvs_free(void) {}
 197 static inline int suspend_nvs_save(void) { return 0; }
 198 static inline void suspend_nvs_restore(void) {}
 199 #endif
 200
 201 /*--------------------------------------------------------------------------
 202                                 Device properties
 203   -------------------------------------------------------------------------- */
 204 #define ACPI_DT_NAMESPACE_HID   "PRP0001"
 205
 206 void acpi_init_properties(struct acpi_device *adev);
 207 void acpi_free_properties(struct acpi_device *adev);
 208
 209 #endif /* _ACPI_INTERNAL_H_ */