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 int acpi_ioapic_remove(struct acpi_pci_root *root);
  45 #else
  46 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  47 #endif
  48 #ifdef CONFIG_ACPI_DOCK
  49 void register_dock_dependent_device(struct acpi_device *adev,
  50                                     acpi_handle dshandle);
  51 int dock_notify(struct acpi_device *adev, u32 event);
  52 void acpi_dock_add(struct acpi_device *adev);
  53 #else
  54 static inline void register_dock_dependent_device(struct acpi_device *adev,
  55                                                   acpi_handle dshandle) {}
  56 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  57 static inline void acpi_dock_add(struct acpi_device *adev) {}
  58 #endif
  59 #ifdef CONFIG_X86
  60 void acpi_cmos_rtc_init(void);
  61 #else
  62 static inline void acpi_cmos_rtc_init(void) {}
  63 #endif
  64 int acpi_rev_override_setup(char *str);
  65
  66 extern bool acpi_force_hot_remove;
  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(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
 119 /* --------------------------------------------------------------------------
 120                      Device Matching and Notification
 121    -------------------------------------------------------------------------- */
 122 struct acpi_device *acpi_companion_match(const struct device *dev);
 123 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 124                                   struct kobj_uevent_env *env);
 125
 126 /* --------------------------------------------------------------------------
 127                                   Power Resource
 128    -------------------------------------------------------------------------- */
 129 int acpi_power_init(void);
 130 void acpi_power_resources_list_free(struct list_head *list);
 131 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 132                                  struct list_head *list);
 133 int acpi_add_power_resource(acpi_handle handle);
 134 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 135 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 136 int acpi_device_sleep_wake(struct acpi_device *dev,
 137                            int enable, int sleep_state, int dev_state);
 138 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 139 int acpi_power_on_resources(struct acpi_device *device, int state);
 140 int acpi_power_transition(struct acpi_device *device, int state);
 141
 142 int acpi_wakeup_device_init(void);
 143
 144 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 145 void acpi_early_processor_set_pdc(void);
 146 #else
 147 static inline void acpi_early_processor_set_pdc(void) {}
 148 #endif
 149
 150 #ifdef CONFIG_X86
 151 void acpi_early_processor_osc(void);
 152 #else
 153 static inline void acpi_early_processor_osc(void) {}
 154 #endif
 155
 156 /* --------------------------------------------------------------------------
 157                                   Embedded Controller
 158    -------------------------------------------------------------------------- */
 159 struct acpi_ec {
 160         acpi_handle handle;
 161         u32 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
 179 extern 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 */
 183 typedef int (*acpi_ec_query_func) (void *data);
 184
 185 int acpi_ec_init(void);
 186 int acpi_ec_ecdt_probe(void);
 187 int acpi_ec_dsdt_probe(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_ */