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