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 int acpi_scan_init(void);
  27 #ifdef CONFIG_PCI
  28 void acpi_pci_root_init(void);
  29 void acpi_pci_link_init(void);
  30 #else
  31 static inline void acpi_pci_root_init(void) {}
  32 static inline void acpi_pci_link_init(void) {}
  33 #endif
  34 void acpi_processor_init(void);
  35 void acpi_platform_init(void);
  36 void acpi_pnp_init(void);
  37 void acpi_int340x_thermal_init(void);
  38 #ifdef CONFIG_ARM_AMBA
  39 void acpi_amba_init(void);
  40 #else
  41 static inline void acpi_amba_init(void) {}
  42 #endif
  43 int acpi_sysfs_init(void);
  44 void acpi_gpe_apply_masked_gpes(void);
  45 void acpi_container_init(void);
  46 void acpi_memory_hotplug_init(void);
  47 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  48 void pci_ioapic_remove(struct acpi_pci_root *root);
  49 int acpi_ioapic_remove(struct acpi_pci_root *root);
  50 #else
  51 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
  52 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  53 #endif
  54 #ifdef CONFIG_ACPI_DOCK
  55 void register_dock_dependent_device(struct acpi_device *adev,
  56                                     acpi_handle dshandle);
  57 int dock_notify(struct acpi_device *adev, u32 event);
  58 void acpi_dock_add(struct acpi_device *adev);
  59 #else
  60 static inline void register_dock_dependent_device(struct acpi_device *adev,
  61                                                   acpi_handle dshandle) {}
  62 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  63 static inline void acpi_dock_add(struct acpi_device *adev) {}
  64 #endif
  65 #ifdef CONFIG_X86
  66 void acpi_cmos_rtc_init(void);
  67 #else
  68 static inline void acpi_cmos_rtc_init(void) {}
  69 #endif
  70 int acpi_rev_override_setup(char *str);
  71
  72 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  73                                     const char *name);
  74 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  75                                        const char *hotplug_profile_name);
  76 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  77
  78 #ifdef CONFIG_DEBUG_FS
  79 extern struct dentry *acpi_debugfs_dir;
  80 void acpi_debugfs_init(void);
  81 #else
  82 static inline void acpi_debugfs_init(void) { return; }
  83 #endif
  84 #ifdef CONFIG_PCI
  85 void acpi_lpss_init(void);
  86 #else
  87 static inline void acpi_lpss_init(void) {}
  88 #endif
  89
  90 void acpi_apd_init(void);
  91
  92 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  93 bool acpi_queue_hotplug_work(struct work_struct *work);
  94 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  95 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  96
  97 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  98 void acpi_scan_table_handler(u32 event, void *table, void *context);
  99
 100 /* --------------------------------------------------------------------------
 101                      Device Node Initialization / Removal
 102    -------------------------------------------------------------------------- */
 103 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
 104                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
 105
 106 extern struct list_head acpi_bus_id_list;
 107
 108 struct acpi_device_bus_id {
 109         char bus_id[15];
 110         unsigned int instance_no;
 111         struct list_head node;
 112 };
 113
 114 int acpi_device_add(struct acpi_device *device,
 115                     void (*release)(struct device *));
 116 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 117                              int type, unsigned long long sta);
 118 int acpi_device_setup_files(struct acpi_device *dev);
 119 void acpi_device_remove_files(struct acpi_device *dev);
 120 void acpi_device_add_finalize(struct acpi_device *device);
 121 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 122 bool acpi_device_is_present(const struct acpi_device *adev);
 123 bool acpi_device_is_battery(struct acpi_device *adev);
 124 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 125                                         const struct device *dev);
 126 int acpi_bus_register_early_device(int type);
 127
 128 /* --------------------------------------------------------------------------
 129                      Device Matching and Notification
 130    -------------------------------------------------------------------------- */
 131 struct acpi_device *acpi_companion_match(const struct device *dev);
 132 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 133                                   struct kobj_uevent_env *env);
 134
 135 /* --------------------------------------------------------------------------
 136                                   Power Resource
 137    -------------------------------------------------------------------------- */
 138 int acpi_power_init(void);
 139 void acpi_power_resources_list_free(struct list_head *list);
 140 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 141                                  struct list_head *list);
 142 int acpi_add_power_resource(acpi_handle handle);
 143 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 144 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 145 int acpi_device_sleep_wake(struct acpi_device *dev,
 146                            int enable, int sleep_state, int dev_state);
 147 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 148 int acpi_power_on_resources(struct acpi_device *device, int state);
 149 int acpi_power_transition(struct acpi_device *device, int state);
 150
 151 int acpi_wakeup_device_init(void);
 152
 153 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 154 void acpi_early_processor_set_pdc(void);
 155 #else
 156 static inline void acpi_early_processor_set_pdc(void) {}
 157 #endif
 158
 159 #ifdef CONFIG_X86
 160 void acpi_early_processor_osc(void);
 161 #else
 162 static inline void acpi_early_processor_osc(void) {}
 163 #endif
 164
 165 /* --------------------------------------------------------------------------
 166                                   Embedded Controller
 167    -------------------------------------------------------------------------- */
 168 struct acpi_ec {
 169         acpi_handle handle;
 170         u32 gpe;
 171         unsigned long command_addr;
 172         unsigned long data_addr;
 173         bool global_lock;
 174         unsigned long flags;
 175         unsigned long reference_count;
 176         struct mutex mutex;
 177         wait_queue_head_t wait;
 178         struct list_head list;
 179         struct transaction *curr;
 180         spinlock_t lock;
 181         struct work_struct work;
 182         unsigned long timestamp;
 183         unsigned long nr_pending_queries;
 184         bool busy_polling;
 185         unsigned int polling_guard;
 186 };
 187
 188 extern struct acpi_ec *first_ec;
 189
 190 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 191 /* External interfaces use first EC only, so remember */
 192 typedef int (*acpi_ec_query_func) (void *data);
 193
 194 int acpi_ec_init(void);
 195 void acpi_ec_ecdt_probe(void);
 196 void acpi_ec_dsdt_probe(void);
 197 void acpi_ec_block_transactions(void);
 198 void acpi_ec_unblock_transactions(void);
 199 void acpi_ec_mark_gpe_for_wake(void);
 200 void acpi_ec_set_gpe_wake_mask(u8 action);
 201 void acpi_ec_dispatch_gpe(void);
 202 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 203                               acpi_handle handle, acpi_ec_query_func func,
 204                               void *data);
 205 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 206
 207 #ifdef CONFIG_PM_SLEEP
 208 void acpi_ec_flush_work(void);
 209 #endif
 210
 211
 212 /*--------------------------------------------------------------------------
 213                                   Suspend/Resume
 214   -------------------------------------------------------------------------- */
 215 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 216 extern bool acpi_s2idle_wakeup(void);
 217 extern bool acpi_sleep_no_ec_events(void);
 218 extern int acpi_sleep_init(void);
 219 #else
 220 static inline bool acpi_s2idle_wakeup(void) { return false; }
 221 static inline bool acpi_sleep_no_ec_events(void) { return true; }
 222 static inline int acpi_sleep_init(void) { return -ENXIO; }
 223 #endif
 224
 225 #ifdef CONFIG_ACPI_SLEEP
 226 void acpi_sleep_proc_init(void);
 227 int suspend_nvs_alloc(void);
 228 void suspend_nvs_free(void);
 229 int suspend_nvs_save(void);
 230 void suspend_nvs_restore(void);
 231 #else
 232 static inline void acpi_sleep_proc_init(void) {}
 233 static inline int suspend_nvs_alloc(void) { return 0; }
 234 static inline void suspend_nvs_free(void) {}
 235 static inline int suspend_nvs_save(void) { return 0; }
 236 static inline void suspend_nvs_restore(void) {}
 237 #endif
 238
 239 /*--------------------------------------------------------------------------
 240                                 Device properties
 241   -------------------------------------------------------------------------- */
 242 #define ACPI_DT_NAMESPACE_HID   "PRP0001"
 243
 244 void acpi_init_properties(struct acpi_device *adev);
 245 void acpi_free_properties(struct acpi_device *adev);
 246
 247 #ifdef CONFIG_X86
 248 void acpi_extract_apple_properties(struct acpi_device *adev);
 249 #else
 250 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
 251 #endif
 252
 253 /*--------------------------------------------------------------------------
 254                                 Watchdog
 255   -------------------------------------------------------------------------- */
 256
 257 #ifdef CONFIG_ACPI_WATCHDOG
 258 void acpi_watchdog_init(void);
 259 #else
 260 static inline void acpi_watchdog_init(void) {}
 261 #endif
 262
 263 #ifdef CONFIG_ACPI_LPIT
 264 void acpi_init_lpit(void);
 265 #else
 266 static inline void acpi_init_lpit(void) { }
 267 #endif
 268
 269 #endif /* _ACPI_INTERNAL_H_ */