LXR linux/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
  23int early_acpi_osi_init(void);
  24int acpi_osi_init(void);
  25acpi_status acpi_os_initialize1(void);
  26void init_acpi_device_notify(void);
  27int acpi_scan_init(void);
  28void acpi_pci_root_init(void);
  29void acpi_pci_link_init(void);
  30void acpi_processor_init(void);
  31void acpi_platform_init(void);
  32void acpi_pnp_init(void);
  33void acpi_int340x_thermal_init(void);
  34#ifdef CONFIG_ARM_AMBA
  35void acpi_amba_init(void);
  36#else
  37static inline void acpi_amba_init(void) {}
  38#endif
  39int acpi_sysfs_init(void);
  40void acpi_gpe_apply_masked_gpes(void);
  41void acpi_container_init(void);
  42void acpi_memory_hotplug_init(void);
  43#ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  44void pci_ioapic_remove(struct acpi_pci_root *root);
  45int acpi_ioapic_remove(struct acpi_pci_root *root);
  46#else
  47static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
  48static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  49#endif
  50#ifdef CONFIG_ACPI_DOCK
  51void register_dock_dependent_device(struct acpi_device *adev,
  52                                    acpi_handle dshandle);
  53int dock_notify(struct acpi_device *adev, u32 event);
  54void acpi_dock_add(struct acpi_device *adev);
  55#else
  56static inline void register_dock_dependent_device(struct acpi_device *adev,
  57                                                  acpi_handle dshandle) {}
  58static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  59static inline void acpi_dock_add(struct acpi_device *adev) {}
  60#endif
  61#ifdef CONFIG_X86
  62void acpi_cmos_rtc_init(void);
  63#else
  64static inline void acpi_cmos_rtc_init(void) {}
  65#endif
  66int acpi_rev_override_setup(char *str);
  67
  68void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  69                                    const char *name);
  70int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  71                                       const char *hotplug_profile_name);
  72void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  73
  74#ifdef CONFIG_DEBUG_FS
  75extern struct dentry *acpi_debugfs_dir;
  76void acpi_debugfs_init(void);
  77#else
  78static inline void acpi_debugfs_init(void) { return; }
  79#endif
  80void acpi_lpss_init(void);
  81
  82void acpi_apd_init(void);
  83
  84acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  85bool acpi_queue_hotplug_work(struct work_struct *work);
  86void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  87bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  88
  89acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  90void acpi_scan_table_handler(u32 event, void *table, void *context);
  91
  92/* --------------------------------------------------------------------------
  93                     Device Node Initialization / Removal
  94   -------------------------------------------------------------------------- */
  95#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  96                          ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  97
  98extern struct list_head acpi_bus_id_list;
  99
 100struct acpi_device_bus_id {
 101        char bus_id[15];
 102        unsigned int instance_no;
 103        struct list_head node;
 104};
 105
 106int acpi_device_add(struct acpi_device *device,
 107                    void (*release)(struct device *));
 108void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 109                             int type, unsigned long long sta);
 110int acpi_device_setup_files(struct acpi_device *dev);
 111void acpi_device_remove_files(struct acpi_device *dev);
 112void acpi_device_add_finalize(struct acpi_device *device);
 113void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 114bool acpi_device_is_present(const struct acpi_device *adev);
 115bool acpi_device_is_battery(struct acpi_device *adev);
 116bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 117                                        const struct device *dev);
 118
 119/* --------------------------------------------------------------------------
 120                     Device Matching and Notification
 121   -------------------------------------------------------------------------- */
 122struct acpi_device *acpi_companion_match(const struct device *dev);
 123int __acpi_device_uevent_modalias(struct acpi_device *adev,
 124                                  struct kobj_uevent_env *env);
 125
 126/* --------------------------------------------------------------------------
 127                                  Power Resource
 128   -------------------------------------------------------------------------- */
 129int acpi_power_init(void);
 130void acpi_power_resources_list_free(struct list_head *list);
 131int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 132                                 struct list_head *list);
 133int acpi_add_power_resource(acpi_handle handle);
 134void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 135int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 136int acpi_device_sleep_wake(struct acpi_device *dev,
 137                           int enable, int sleep_state, int dev_state);
 138int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 139int acpi_power_on_resources(struct acpi_device *device, int state);
 140int acpi_power_transition(struct acpi_device *device, int state);
 141
 142int acpi_wakeup_device_init(void);
 143
 144#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 145void acpi_early_processor_set_pdc(void);
 146#else
 147static inline void acpi_early_processor_set_pdc(void) {}
 148#endif
 149
 150#ifdef CONFIG_X86
 151void acpi_early_processor_osc(void);
 152#else
 153static inline void acpi_early_processor_osc(void) {}
 154#endif
 155
 156/* --------------------------------------------------------------------------
 157                                  Embedded Controller
 158   -------------------------------------------------------------------------- */
 159struct acpi_ec {
 160        acpi_handle handle;
 161        unsigned long gpe;
 162        unsigned long command_addr;
 163        unsigned long data_addr;
 164        bool global_lock;
 165        unsigned long flags;
 166        unsigned long reference_count;
 167        struct mutex mutex;
 168        wait_queue_head_t wait;
 169        struct list_head list;
 170        struct transaction *curr;
 171        spinlock_t lock;
 172        struct work_struct work;
 173        unsigned long timestamp;
 174        unsigned long nr_pending_queries;
 175        bool busy_polling;
 176        unsigned int polling_guard;
 177};
 178
 179extern struct acpi_ec *first_ec;
 180
 181/* If we find an EC via the ECDT, we need to keep a ptr to its context */
 182/* External interfaces use first EC only, so remember */
 183typedef int (*acpi_ec_query_func) (void *data);
 184
 185int acpi_ec_init(void);
 186int acpi_ec_ecdt_probe(void);
 187int acpi_ec_dsdt_probe(void);
 188void acpi_ec_block_transactions(void);
 189void acpi_ec_unblock_transactions(void);
 190int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 191                              acpi_handle handle, acpi_ec_query_func func,
 192                              void *data);
 193void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 194
 195#ifdef CONFIG_PM_SLEEP
 196void acpi_ec_flush_work(void);
 197#endif
 198
 199
 200/*--------------------------------------------------------------------------
 201                                  Suspend/Resume
 202  -------------------------------------------------------------------------- */
 203#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 204extern bool acpi_s2idle_wakeup(void);
 205extern bool acpi_sleep_no_ec_events(void);
 206extern int acpi_sleep_init(void);
 207#else
 208static inline bool acpi_s2idle_wakeup(void) { return false; }
 209static inline bool acpi_sleep_no_ec_events(void) { return true; }
 210static inline int acpi_sleep_init(void) { return -ENXIO; }
 211#endif
 212
 213#ifdef CONFIG_ACPI_SLEEP
 214void acpi_sleep_proc_init(void);
 215int suspend_nvs_alloc(void);
 216void suspend_nvs_free(void);
 217int suspend_nvs_save(void);
 218void suspend_nvs_restore(void);
 219#else
 220static inline void acpi_sleep_proc_init(void) {}
 221static inline int suspend_nvs_alloc(void) { return 0; }
 222static inline void suspend_nvs_free(void) {}
 223static inline int suspend_nvs_save(void) { return 0; }
 224static inline void suspend_nvs_restore(void) {}
 225#endif
 226
 227/*--------------------------------------------------------------------------
 228                                Device properties
 229  -------------------------------------------------------------------------- */
 230#define ACPI_DT_NAMESPACE_HID   "PRP0001"
 231
 232void acpi_init_properties(struct acpi_device *adev);
 233void acpi_free_properties(struct acpi_device *adev);
 234
 235/*--------------------------------------------------------------------------
 236                                Watchdog
 237  -------------------------------------------------------------------------- */
 238
 239#ifdef CONFIG_ACPI_WATCHDOG
 240void acpi_watchdog_init(void);
 241#else
 242static inline void acpi_watchdog_init(void) {}
 243#endif
 244
 245#endif /* _ACPI_INTERNAL_H_ */
 246