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 int early_acpi_osi_init(void);
  24 int acpi_osi_init(void);
  25 acpi_status acpi_os_initialize1(void);
  26 void init_acpi_device_notify(void);
  27 int acpi_scan_init(void);
  28 void acpi_pci_root_init(void);
  29 void acpi_pci_link_init(void);
  30 void acpi_processor_init(void);
  31 void acpi_platform_init(void);
  32 void acpi_pnp_init(void);
  33 void acpi_int340x_thermal_init(void);
  34 #ifdef CONFIG_ARM_AMBA
  35 void acpi_amba_init(void);
  36 #else
  37 static inline void acpi_amba_init(void) {}
  38 #endif
  39 int acpi_sysfs_init(void);
  40 void acpi_gpe_apply_masked_gpes(void);
  41 void acpi_container_init(void);
  42 void acpi_memory_hotplug_init(void);
  43 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  44 void pci_ioapic_remove(struct acpi_pci_root *root);
  45 int acpi_ioapic_remove(struct acpi_pci_root *root);
  46 #else
  47 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
  48 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  49 #endif
  50 #ifdef CONFIG_ACPI_DOCK
  51 void register_dock_dependent_device(struct acpi_device *adev,
  52                                     acpi_handle dshandle);
  53 int dock_notify(struct acpi_device *adev, u32 event);
  54 void acpi_dock_add(struct acpi_device *adev);
  55 #else
  56 static inline void register_dock_dependent_device(struct acpi_device *adev,
  57                                                   acpi_handle dshandle) {}
  58 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  59 static inline void acpi_dock_add(struct acpi_device *adev) {}
  60 #endif
  61 #ifdef CONFIG_X86
  62 void acpi_cmos_rtc_init(void);
  63 #else
  64 static inline void acpi_cmos_rtc_init(void) {}
  65 #endif
  66 int acpi_rev_override_setup(char *str);
  67
  68 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  69                                     const char *name);
  70 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  71                                        const char *hotplug_profile_name);
  72 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  73
  74 #ifdef CONFIG_DEBUG_FS
  75 extern struct dentry *acpi_debugfs_dir;
  76 void acpi_debugfs_init(void);
  77 #else
  78 static inline void acpi_debugfs_init(void) { return; }
  79 #endif
  80 void acpi_lpss_init(void);
  81
  82 void acpi_apd_init(void);
  83
  84 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  85 bool acpi_queue_hotplug_work(struct work_struct *work);
  86 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  87 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  88
  89 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  90 void 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
  98 extern struct list_head acpi_bus_id_list;
  99
 100 struct acpi_device_bus_id {
 101         char bus_id[15];
 102         unsigned int instance_no;
 103         struct list_head node;
 104 };
 105
 106 int acpi_device_add(struct acpi_device *device,
 107                     void (*release)(struct device *));
 108 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 109                              int type, unsigned long long sta);
 110 int acpi_device_setup_files(struct acpi_device *dev);
 111 void acpi_device_remove_files(struct acpi_device *dev);
 112 void acpi_device_add_finalize(struct acpi_device *device);
 113 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 114 bool acpi_device_is_present(const struct acpi_device *adev);
 115 bool acpi_device_is_battery(struct acpi_device *adev);
 116 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 117                                         const struct device *dev);
 118 int acpi_bus_register_early_device(int type);
 119
 120 /* --------------------------------------------------------------------------
 121                      Device Matching and Notification
 122    -------------------------------------------------------------------------- */
 123 struct acpi_device *acpi_companion_match(const struct device *dev);
 124 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 125                                   struct kobj_uevent_env *env);
 126
 127 /* --------------------------------------------------------------------------
 128                                   Power Resource
 129    -------------------------------------------------------------------------- */
 130 int acpi_power_init(void);
 131 void acpi_power_resources_list_free(struct list_head *list);
 132 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 133                                  struct list_head *list);
 134 int acpi_add_power_resource(acpi_handle handle);
 135 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 136 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 137 int acpi_device_sleep_wake(struct acpi_device *dev,
 138                            int enable, int sleep_state, int dev_state);
 139 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 140 int acpi_power_on_resources(struct acpi_device *device, int state);
 141 int acpi_power_transition(struct acpi_device *device, int state);
 142
 143 int acpi_wakeup_device_init(void);
 144
 145 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 146 void acpi_early_processor_set_pdc(void);
 147 #else
 148 static inline void acpi_early_processor_set_pdc(void) {}
 149 #endif
 150
 151 #ifdef CONFIG_X86
 152 void acpi_early_processor_osc(void);
 153 #else
 154 static inline void acpi_early_processor_osc(void) {}
 155 #endif
 156
 157 /* --------------------------------------------------------------------------
 158                                   Embedded Controller
 159    -------------------------------------------------------------------------- */
 160 struct acpi_ec {
 161         acpi_handle handle;
 162         u32 gpe;
 163         unsigned long command_addr;
 164         unsigned long data_addr;
 165         bool global_lock;
 166         unsigned long flags;
 167         unsigned long reference_count;
 168         struct mutex mutex;
 169         wait_queue_head_t wait;
 170         struct list_head list;
 171         struct transaction *curr;
 172         spinlock_t lock;
 173         struct work_struct work;
 174         unsigned long timestamp;
 175         unsigned long nr_pending_queries;
 176         bool busy_polling;
 177         unsigned int polling_guard;
 178 };
 179
 180 extern struct acpi_ec *first_ec;
 181
 182 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 183 /* External interfaces use first EC only, so remember */
 184 typedef int (*acpi_ec_query_func) (void *data);
 185
 186 int acpi_ec_init(void);
 187 int acpi_ec_ecdt_probe(void);
 188 int acpi_ec_dsdt_probe(void);
 189 void acpi_ec_block_transactions(void);
 190 void acpi_ec_unblock_transactions(void);
 191 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 192                               acpi_handle handle, acpi_ec_query_func func,
 193                               void *data);
 194 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 195
 196 #ifdef CONFIG_PM_SLEEP
 197 void acpi_ec_flush_work(void);
 198 #endif
 199
 200
 201 /*--------------------------------------------------------------------------
 202                                   Suspend/Resume
 203   -------------------------------------------------------------------------- */
 204 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 205 extern bool acpi_s2idle_wakeup(void);
 206 extern bool acpi_sleep_no_ec_events(void);
 207 extern int acpi_sleep_init(void);
 208 #else
 209 static inline bool acpi_s2idle_wakeup(void) { return false; }
 210 static inline bool acpi_sleep_no_ec_events(void) { return true; }
 211 static inline int acpi_sleep_init(void) { return -ENXIO; }
 212 #endif
 213
 214 #ifdef CONFIG_ACPI_SLEEP
 215 void acpi_sleep_proc_init(void);
 216 int suspend_nvs_alloc(void);
 217 void suspend_nvs_free(void);
 218 int suspend_nvs_save(void);
 219 void suspend_nvs_restore(void);
 220 #else
 221 static inline void acpi_sleep_proc_init(void) {}
 222 static inline int suspend_nvs_alloc(void) { return 0; }
 223 static inline void suspend_nvs_free(void) {}
 224 static inline int suspend_nvs_save(void) { return 0; }
 225 static inline void suspend_nvs_restore(void) {}
 226 #endif
 227
 228 /*--------------------------------------------------------------------------
 229                                 Device properties
 230   -------------------------------------------------------------------------- */
 231 #define ACPI_DT_NAMESPACE_HID   "PRP0001"
 232
 233 void acpi_init_properties(struct acpi_device *adev);
 234 void acpi_free_properties(struct acpi_device *adev);
 235
 236 #ifdef CONFIG_X86
 237 void acpi_extract_apple_properties(struct acpi_device *adev);
 238 #else
 239 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
 240 #endif
 241
 242 /*--------------------------------------------------------------------------
 243                                 Watchdog
 244   -------------------------------------------------------------------------- */
 245
 246 #ifdef CONFIG_ACPI_WATCHDOG
 247 void acpi_watchdog_init(void);
 248 #else
 249 static inline void acpi_watchdog_init(void) {}
 250 #endif
 251
 252 #ifdef CONFIG_ACPI_LPIT
 253 void acpi_init_lpit(void);
 254 #else
 255 static inline void acpi_init_lpit(void) { }
 256 #endif
 257
 258 #endif /* _ACPI_INTERNAL_H_ */