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 void acpi_initrd_initialize_tables(void);
  24 acpi_status acpi_os_initialize1(void);
  25 void init_acpi_device_notify(void);
  26 int acpi_scan_init(void);
  27 void acpi_pci_root_init(void);
  28 void acpi_pci_link_init(void);
  29 void acpi_processor_init(void);
  30 void acpi_platform_init(void);
  31 void acpi_pnp_init(void);
  32 void acpi_int340x_thermal_init(void);
  33 #ifdef CONFIG_ARM_AMBA
  34 void acpi_amba_init(void);
  35 #else
  36 static inline void acpi_amba_init(void) {}
  37 #endif
  38 int acpi_sysfs_init(void);
  39 void acpi_container_init(void);
  40 void acpi_memory_hotplug_init(void);
  41 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  42 int acpi_ioapic_add(struct acpi_pci_root *root);
  43 int acpi_ioapic_remove(struct acpi_pci_root *root);
  44 #else
  45 static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; }
  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 /* --------------------------------------------------------------------------
  90                      Device Node Initialization / Removal
  91    -------------------------------------------------------------------------- */
  92 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  93                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  94
  95 extern struct list_head acpi_bus_id_list;
  96
  97 struct acpi_device_bus_id {
  98         char bus_id[15];
  99         unsigned int instance_no;
 100         struct list_head node;
 101 };
 102
 103 int acpi_device_add(struct acpi_device *device,
 104                     void (*release)(struct device *));
 105 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 106                              int type, unsigned long long sta);
 107 int acpi_device_setup_files(struct acpi_device *dev);
 108 void acpi_device_remove_files(struct acpi_device *dev);
 109 void acpi_device_add_finalize(struct acpi_device *device);
 110 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 111 bool acpi_device_is_present(struct acpi_device *adev);
 112 bool acpi_device_is_battery(struct acpi_device *adev);
 113 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
 114                                         const struct device *dev);
 115 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
 116
 117 /* --------------------------------------------------------------------------
 118                      Device Matching and Notification
 119    -------------------------------------------------------------------------- */
 120 struct acpi_device *acpi_companion_match(const struct device *dev);
 121 int __acpi_device_uevent_modalias(struct acpi_device *adev,
 122                                   struct kobj_uevent_env *env);
 123
 124 /* --------------------------------------------------------------------------
 125                                   Power Resource
 126    -------------------------------------------------------------------------- */
 127 int acpi_power_init(void);
 128 void acpi_power_resources_list_free(struct list_head *list);
 129 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 130                                  struct list_head *list);
 131 int acpi_add_power_resource(acpi_handle handle);
 132 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 133 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 134 int acpi_device_sleep_wake(struct acpi_device *dev,
 135                            int enable, int sleep_state, int dev_state);
 136 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 137 int acpi_power_on_resources(struct acpi_device *device, int state);
 138 int acpi_power_transition(struct acpi_device *device, int state);
 139
 140 int acpi_wakeup_device_init(void);
 141
 142 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 143 void acpi_early_processor_set_pdc(void);
 144 #else
 145 static inline void acpi_early_processor_set_pdc(void) {}
 146 #endif
 147
 148 #ifdef CONFIG_X86
 149 void acpi_early_processor_osc(void);
 150 #else
 151 static inline void acpi_early_processor_osc(void) {}
 152 #endif
 153
 154 /* --------------------------------------------------------------------------
 155                                   Embedded Controller
 156    -------------------------------------------------------------------------- */
 157 struct acpi_ec {
 158         acpi_handle handle;
 159         unsigned long gpe;
 160         unsigned long command_addr;
 161         unsigned long data_addr;
 162         bool global_lock;
 163         unsigned long flags;
 164         unsigned long reference_count;
 165         struct mutex mutex;
 166         wait_queue_head_t wait;
 167         struct list_head list;
 168         struct transaction *curr;
 169         spinlock_t lock;
 170         struct work_struct work;
 171         unsigned long timestamp;
 172         unsigned long nr_pending_queries;
 173 };
 174
 175 extern struct acpi_ec *first_ec;
 176
 177 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 178 /* External interfaces use first EC only, so remember */
 179 typedef int (*acpi_ec_query_func) (void *data);
 180
 181 int acpi_ec_init(void);
 182 int acpi_ec_ecdt_probe(void);
 183 int acpi_boot_ec_enable(void);
 184 void acpi_ec_block_transactions(void);
 185 void acpi_ec_unblock_transactions(void);
 186 void acpi_ec_unblock_transactions_early(void);
 187 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 188                               acpi_handle handle, acpi_ec_query_func func,
 189                               void *data);
 190 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 191
 192
 193 /*--------------------------------------------------------------------------
 194                                   Suspend/Resume
 195   -------------------------------------------------------------------------- */
 196 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 197 extern int acpi_sleep_init(void);
 198 #else
 199 static inline int acpi_sleep_init(void) { return -ENXIO; }
 200 #endif
 201
 202 #ifdef CONFIG_ACPI_SLEEP
 203 void acpi_sleep_proc_init(void);
 204 int suspend_nvs_alloc(void);
 205 void suspend_nvs_free(void);
 206 int suspend_nvs_save(void);
 207 void suspend_nvs_restore(void);
 208 #else
 209 static inline void acpi_sleep_proc_init(void) {}
 210 static inline int suspend_nvs_alloc(void) { return 0; }
 211 static inline void suspend_nvs_free(void) {}
 212 static inline int suspend_nvs_save(void) { return 0; }
 213 static inline void suspend_nvs_restore(void) {}
 214 #endif
 215
 216 /*--------------------------------------------------------------------------
 217                                 Device properties
 218   -------------------------------------------------------------------------- */
 219 #define ACPI_DT_NAMESPACE_HID   "PRP0001"
 220
 221 void acpi_init_properties(struct acpi_device *adev);
 222 void acpi_free_properties(struct acpi_device *adev);
 223
 224 #endif /* _ACPI_INTERNAL_H_ */