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