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_container_init(void);
  41 void acpi_memory_hotplug_init(void);
  42 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  43 int acpi_ioapic_remove(struct acpi_pci_root *root);
  44 #else
  45 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  46 #endif
  47 #ifdef CONFIG_ACPI_DOCK
  48 void register_dock_dependent_device(struct acpi_device *adev,
  49                                     acpi_handle dshandle);
  50 int dock_notify(struct acpi_device *adev, u32 event);
  51 void acpi_dock_add(struct acpi_device *adev);
  52 #else
  53 static inline void register_dock_dependent_device(struct acpi_device *adev,
  54                                                   acpi_handle dshandle) {}
  55 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  56 static inline void acpi_dock_add(struct acpi_device *adev) {}
  57 #endif
  58 #ifdef CONFIG_X86
  59 void acpi_cmos_rtc_init(void);
  60 #else
  61 static inline void acpi_cmos_rtc_init(void) {}
  62 #endif
  63 int acpi_rev_override_setup(char *str);
  64
  65 extern bool acpi_force_hot_remove;
  66
  67 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  68                                     const char *name);
  69 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  70                                        const char *hotplug_profile_name);
  71 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  72
  73 #ifdef CONFIG_DEBUG_FS
  74 extern struct dentry *acpi_debugfs_dir;
  75 void acpi_debugfs_init(void);
  76 #else
  77 static inline void acpi_debugfs_init(void) { return; }
  78 #endif
  79 void acpi_lpss_init(void);
  80
  81 void acpi_apd_init(void);
  82
  83 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  84 bool acpi_queue_hotplug_work(struct work_struct *work);
  85 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  86 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  87
  88 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  89 void 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
  97 extern struct list_head acpi_bus_id_list;
  98
  99 struct acpi_device_bus_id {
 100         char bus_id[15];
 101         unsigned int instance_no;
 102         struct list_head node;
 103 };
 104
 105 int acpi_device_add(struct acpi_device *device,
 106                     void (*release)(struct device *));
 107 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 108                              int type, unsigned long long sta);
 109 int acpi_device_setup_files(struct acpi_device *dev);
 110 void acpi_device_remove_files(struct acpi_device *dev);
 111 void acpi_device_add_finalize(struct acpi_device *device);
 112 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 113 bool acpi_device_is_present(struct acpi_device *adev);
 114 bool acpi_device_is_battery(struct acpi_device *adev);
 115 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 116                                         const struct device *dev);
 117
 118 /* --------------------------------------------------------------------------
 119                      Device Matching and Notification
 120    -------------------------------------------------------------------------- */
 121 struct acpi_device *acpi_companion_match(const struct device *dev);
 122 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 123                                   struct kobj_uevent_env *env);
 124
 125 /* --------------------------------------------------------------------------
 126                                   Power Resource
 127    -------------------------------------------------------------------------- */
 128 int acpi_power_init(void);
 129 void acpi_power_resources_list_free(struct list_head *list);
 130 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 131                                  struct list_head *list);
 132 int acpi_add_power_resource(acpi_handle handle);
 133 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 134 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 135 int acpi_device_sleep_wake(struct acpi_device *dev,
 136                            int enable, int sleep_state, int dev_state);
 137 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 138 int acpi_power_on_resources(struct acpi_device *device, int state);
 139 int acpi_power_transition(struct acpi_device *device, int state);
 140
 141 int acpi_wakeup_device_init(void);
 142
 143 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 144 void acpi_early_processor_set_pdc(void);
 145 #else
 146 static inline void acpi_early_processor_set_pdc(void) {}
 147 #endif
 148
 149 #ifdef CONFIG_X86
 150 void acpi_early_processor_osc(void);
 151 #else
 152 static inline void acpi_early_processor_osc(void) {}
 153 #endif
 154
 155 /* --------------------------------------------------------------------------
 156                                   Embedded Controller
 157    -------------------------------------------------------------------------- */
 158 struct 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
 178 extern 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 */
 182 typedef int (*acpi_ec_query_func) (void *data);
 183
 184 int acpi_ec_init(void);
 185 int acpi_ec_ecdt_probe(void);
 186 int acpi_ec_dsdt_probe(void);
 187 int acpi_ec_ecdt_start(void);
 188 void acpi_ec_block_transactions(void);
 189 void acpi_ec_unblock_transactions(void);
 190 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 191                               acpi_handle handle, acpi_ec_query_func func,
 192                               void *data);
 193 void 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
 200 extern int acpi_sleep_init(void);
 201 #else
 202 static inline int acpi_sleep_init(void) { return -ENXIO; }
 203 #endif
 204
 205 #ifdef CONFIG_ACPI_SLEEP
 206 void acpi_sleep_proc_init(void);
 207 int suspend_nvs_alloc(void);
 208 void suspend_nvs_free(void);
 209 int suspend_nvs_save(void);
 210 void suspend_nvs_restore(void);
 211 #else
 212 static inline void acpi_sleep_proc_init(void) {}
 213 static inline int suspend_nvs_alloc(void) { return 0; }
 214 static inline void suspend_nvs_free(void) {}
 215 static inline int suspend_nvs_save(void) { return 0; }
 216 static inline void suspend_nvs_restore(void) {}
 217 #endif
 218
 219 /*--------------------------------------------------------------------------
 220                                 Device properties
 221   -------------------------------------------------------------------------- */
 222 #define ACPI_DT_NAMESPACE_HID   "PRP0001"
 223
 224 void acpi_init_properties(struct acpi_device *adev);
 225 void acpi_free_properties(struct acpi_device *adev);
 226
 227 /*--------------------------------------------------------------------------
 228                                 Watchdog
 229   -------------------------------------------------------------------------- */
 230
 231 #ifdef CONFIG_ACPI_WATCHDOG
 232 void acpi_watchdog_init(void);
 233 #else
 234 static inline void acpi_watchdog_init(void) {}
 235 #endif
 236
 237 #endif /* _ACPI_INTERNAL_H_ */