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 void acpi_int340x_thermal_init(void);
  35 int acpi_sysfs_init(void);
  36 void acpi_container_init(void);
  37 void acpi_memory_hotplug_init(void);
  38 #ifdef  CONFIG_ACPI_HOTPLUG_IOAPIC
  39 int acpi_ioapic_add(struct acpi_pci_root *root);
  40 int acpi_ioapic_remove(struct acpi_pci_root *root);
  41 #else
  42 static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; }
  43 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  44 #endif
  45 #ifdef CONFIG_ACPI_DOCK
  46 void register_dock_dependent_device(struct acpi_device *adev,
  47                                     acpi_handle dshandle);
  48 int dock_notify(struct acpi_device *adev, u32 event);
  49 void acpi_dock_add(struct acpi_device *adev);
  50 #else
  51 static inline void register_dock_dependent_device(struct acpi_device *adev,
  52                                                   acpi_handle dshandle) {}
  53 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  54 static inline void acpi_dock_add(struct acpi_device *adev) {}
  55 #endif
  56 #ifdef CONFIG_X86
  57 void acpi_cmos_rtc_init(void);
  58 #else
  59 static inline void acpi_cmos_rtc_init(void) {}
  60 #endif
  61
  62 extern bool acpi_force_hot_remove;
  63
  64 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  65                                     const char *name);
  66 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  67                                        const char *hotplug_profile_name);
  68 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  69
  70 #ifdef CONFIG_DEBUG_FS
  71 extern struct dentry *acpi_debugfs_dir;
  72 int acpi_debugfs_init(void);
  73 #else
  74 static inline void acpi_debugfs_init(void) { return; }
  75 #endif
  76 void acpi_lpss_init(void);
  77
  78 void acpi_apd_init(void);
  79
  80 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  81 bool acpi_queue_hotplug_work(struct work_struct *work);
  82 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  83 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  84
  85 /* --------------------------------------------------------------------------
  86                      Device Node Initialization / Removal
  87    -------------------------------------------------------------------------- */
  88 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  89                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  90
  91 int acpi_device_add(struct acpi_device *device,
  92                     void (*release)(struct device *));
  93 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  94                              int type, unsigned long long sta);
  95 void acpi_device_add_finalize(struct acpi_device *device);
  96 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  97 bool acpi_device_is_present(struct acpi_device *adev);
  98 bool acpi_device_is_battery(struct acpi_device *adev);
  99
 100 /* --------------------------------------------------------------------------
 101                                   Power Resource
 102    -------------------------------------------------------------------------- */
 103 int acpi_power_init(void);
 104 void acpi_power_resources_list_free(struct list_head *list);
 105 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 106                                  struct list_head *list);
 107 int acpi_add_power_resource(acpi_handle handle);
 108 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 109 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 110 int acpi_device_sleep_wake(struct acpi_device *dev,
 111                            int enable, int sleep_state, int dev_state);
 112 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 113 int acpi_power_on_resources(struct acpi_device *device, int state);
 114 int acpi_power_transition(struct acpi_device *device, int state);
 115
 116 int acpi_wakeup_device_init(void);
 117
 118 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
 119 void acpi_early_processor_set_pdc(void);
 120 #else
 121 static inline void acpi_early_processor_set_pdc(void) {}
 122 #endif
 123
 124 /* --------------------------------------------------------------------------
 125                                   Embedded Controller
 126    -------------------------------------------------------------------------- */
 127 struct acpi_ec {
 128         acpi_handle handle;
 129         unsigned long gpe;
 130         unsigned long command_addr;
 131         unsigned long data_addr;
 132         unsigned long global_lock;
 133         unsigned long flags;
 134         unsigned long reference_count;
 135         struct mutex mutex;
 136         wait_queue_head_t wait;
 137         struct list_head list;
 138         struct transaction *curr;
 139         spinlock_t lock;
 140         struct work_struct work;
 141 };
 142
 143 extern struct acpi_ec *first_ec;
 144
 145 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 146 /* External interfaces use first EC only, so remember */
 147 typedef int (*acpi_ec_query_func) (void *data);
 148
 149 int acpi_ec_init(void);
 150 int acpi_ec_ecdt_probe(void);
 151 int acpi_boot_ec_enable(void);
 152 void acpi_ec_block_transactions(void);
 153 void acpi_ec_unblock_transactions(void);
 154 void acpi_ec_unblock_transactions_early(void);
 155 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 156                               acpi_handle handle, acpi_ec_query_func func,
 157                               void *data);
 158 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 159
 160
 161 /*--------------------------------------------------------------------------
 162                                   Suspend/Resume
 163   -------------------------------------------------------------------------- */
 164 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 165 extern int acpi_sleep_init(void);
 166 #else
 167 static inline int acpi_sleep_init(void) { return -ENXIO; }
 168 #endif
 169
 170 #ifdef CONFIG_ACPI_SLEEP
 171 int acpi_sleep_proc_init(void);
 172 int suspend_nvs_alloc(void);
 173 void suspend_nvs_free(void);
 174 int suspend_nvs_save(void);
 175 void suspend_nvs_restore(void);
 176 #else
 177 static inline int acpi_sleep_proc_init(void) { return 0; }
 178 static inline int suspend_nvs_alloc(void) { return 0; }
 179 static inline void suspend_nvs_free(void) {}
 180 static inline int suspend_nvs_save(void) { return 0; }
 181 static inline void suspend_nvs_restore(void) {}
 182 #endif
 183
 184 /*--------------------------------------------------------------------------
 185                                         Video
 186   -------------------------------------------------------------------------- */
 187 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 188 bool acpi_osi_is_win8(void);
 189 #endif
 190
 191 /*--------------------------------------------------------------------------
 192                                 Device properties
 193   -------------------------------------------------------------------------- */
 194 void acpi_init_properties(struct acpi_device *adev);
 195 void acpi_free_properties(struct acpi_device *adev);
 196
 197 #endif /* _ACPI_INTERNAL_H_ */