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  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #ifndef _ACPI_INTERNAL_H_
  22 #define _ACPI_INTERNAL_H_
  23
  24 #define PREFIX "ACPI: "
  25
  26 acpi_status acpi_os_initialize1(void);
  27 int init_acpi_device_notify(void);
  28 int acpi_scan_init(void);
  29 void acpi_pci_root_init(void);
  30 void acpi_pci_link_init(void);
  31 void acpi_processor_init(void);
  32 void acpi_platform_init(void);
  33 void acpi_pnp_init(void);
  34 int acpi_sysfs_init(void);
  35 void acpi_container_init(void);
  36 void acpi_memory_hotplug_init(void);
  37 #ifdef CONFIG_ACPI_DOCK
  38 void register_dock_dependent_device(struct acpi_device *adev,
  39                                     acpi_handle dshandle);
  40 int dock_notify(struct acpi_device *adev, u32 event);
  41 void acpi_dock_add(struct acpi_device *adev);
  42 #else
  43 static inline void register_dock_dependent_device(struct acpi_device *adev,
  44                                                   acpi_handle dshandle) {}
  45 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  46 static inline void acpi_dock_add(struct acpi_device *adev) {}
  47 #endif
  48 #ifdef CONFIG_X86
  49 void acpi_cmos_rtc_init(void);
  50 #else
  51 static inline void acpi_cmos_rtc_init(void) {}
  52 #endif
  53
  54 extern bool acpi_force_hot_remove;
  55
  56 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  57                                     const char *name);
  58 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  59                                        const char *hotplug_profile_name);
  60 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  61
  62 #ifdef CONFIG_DEBUG_FS
  63 extern struct dentry *acpi_debugfs_dir;
  64 int acpi_debugfs_init(void);
  65 #else
  66 static inline void acpi_debugfs_init(void) { return; }
  67 #endif
  68 void acpi_lpss_init(void);
  69
  70 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  71 bool acpi_queue_hotplug_work(struct work_struct *work);
  72 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  73 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  74
  75 /* --------------------------------------------------------------------------
  76                      Device Node Initialization / Removal
  77    -------------------------------------------------------------------------- */
  78 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  79                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  80
  81 int acpi_device_add(struct acpi_device *device,
  82                     void (*release)(struct device *));
  83 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  84                              int type, unsigned long long sta);
  85 void acpi_device_add_finalize(struct acpi_device *device);
  86 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  87 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
  88 int acpi_unbind_one(struct device *dev);
  89 bool acpi_device_is_present(struct acpi_device *adev);
  90 bool acpi_device_is_battery(struct acpi_device *adev);
  91
  92 /* --------------------------------------------------------------------------
  93                                   Power Resource
  94    -------------------------------------------------------------------------- */
  95 int acpi_power_init(void);
  96 void acpi_power_resources_list_free(struct list_head *list);
  97 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
  98                                  struct list_head *list);
  99 int acpi_add_power_resource(acpi_handle handle);
 100 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 101 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 102 int acpi_device_sleep_wake(struct acpi_device *dev,
 103                            int enable, int sleep_state, int dev_state);
 104 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 105 int acpi_power_on_resources(struct acpi_device *device, int state);
 106 int acpi_power_transition(struct acpi_device *device, int state);
 107
 108 int acpi_device_update_power(struct acpi_device *device, int *state_p);
 109
 110 int acpi_wakeup_device_init(void);
 111
 112 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 113 void acpi_early_processor_set_pdc(void);
 114 #else
 115 static inline void acpi_early_processor_set_pdc(void) {}
 116 #endif
 117
 118 /* --------------------------------------------------------------------------
 119                                   Embedded Controller
 120    -------------------------------------------------------------------------- */
 121 struct acpi_ec {
 122         acpi_handle handle;
 123         unsigned long gpe;
 124         unsigned long command_addr;
 125         unsigned long data_addr;
 126         unsigned long global_lock;
 127         unsigned long flags;
 128         struct mutex mutex;
 129         wait_queue_head_t wait;
 130         struct list_head list;
 131         struct transaction *curr;
 132         spinlock_t lock;
 133 };
 134
 135 extern struct acpi_ec *first_ec;
 136
 137 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 138 /* External interfaces use first EC only, so remember */
 139 typedef int (*acpi_ec_query_func) (void *data);
 140
 141 int acpi_ec_init(void);
 142 int acpi_ec_ecdt_probe(void);
 143 int acpi_boot_ec_enable(void);
 144 void acpi_ec_block_transactions(void);
 145 void acpi_ec_unblock_transactions(void);
 146 void acpi_ec_unblock_transactions_early(void);
 147 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 148                               acpi_handle handle, acpi_ec_query_func func,
 149                               void *data);
 150 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 151
 152
 153 /*--------------------------------------------------------------------------
 154                                   Suspend/Resume
 155   -------------------------------------------------------------------------- */
 156 extern int acpi_sleep_init(void);
 157
 158 #ifdef CONFIG_ACPI_SLEEP
 159 int acpi_sleep_proc_init(void);
 160 int suspend_nvs_alloc(void);
 161 void suspend_nvs_free(void);
 162 int suspend_nvs_save(void);
 163 void suspend_nvs_restore(void);
 164 #else
 165 static inline int acpi_sleep_proc_init(void) { return 0; }
 166 static inline int suspend_nvs_alloc(void) { return 0; }
 167 static inline void suspend_nvs_free(void) {}
 168 static inline int suspend_nvs_save(void) { return 0; }
 169 static inline void suspend_nvs_restore(void) {}
 170 #endif
 171
 172 /*--------------------------------------------------------------------------
 173                                 Platform bus support
 174   -------------------------------------------------------------------------- */
 175 struct platform_device;
 176
 177 struct platform_device *acpi_create_platform_device(struct acpi_device *adev);
 178
 179 /*--------------------------------------------------------------------------
 180                                         Video
 181   -------------------------------------------------------------------------- */
 182 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 183 bool acpi_osi_is_win8(void);
 184 #endif
 185
 186 #endif /* _ACPI_INTERNAL_H_ */