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 int acpi_sysfs_init(void);
  34 #ifdef CONFIG_ACPI_CONTAINER
  35 void acpi_container_init(void);
  36 #else
  37 static inline void acpi_container_init(void) {}
  38 #endif
  39 #ifdef CONFIG_ACPI_DOCK
  40 void acpi_dock_init(void);
  41 #else
  42 static inline void acpi_dock_init(void) {}
  43 #endif
  44 #ifdef CONFIG_ACPI_HOTPLUG_MEMORY
  45 void acpi_memory_hotplug_init(void);
  46 #else
  47 static inline void acpi_memory_hotplug_init(void) {}
  48 #endif
  49 #ifdef CONFIG_X86
  50 void acpi_cmos_rtc_init(void);
  51 #else
  52 static inline void acpi_cmos_rtc_init(void) {}
  53 #endif
  54
  55 extern bool acpi_force_hot_remove;
  56
  57 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  58                                     const char *name);
  59 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  60                                        const char *hotplug_profile_name);
  61 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  62
  63 #ifdef CONFIG_DEBUG_FS
  64 extern struct dentry *acpi_debugfs_dir;
  65 int acpi_debugfs_init(void);
  66 #else
  67 static inline void acpi_debugfs_init(void) { return; }
  68 #endif
  69 #ifdef CONFIG_X86_INTEL_LPSS
  70 void acpi_lpss_init(void);
  71 #else
  72 static inline void acpi_lpss_init(void) {}
  73 #endif
  74
  75 bool acpi_queue_hotplug_work(struct work_struct *work);
  76 void acpi_device_hotplug(void *data, u32 src);
  77 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  78
  79 /* --------------------------------------------------------------------------
  80                      Device Node Initialization / Removal
  81    -------------------------------------------------------------------------- */
  82 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  83                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  84
  85 int acpi_device_add(struct acpi_device *device,
  86                     void (*release)(struct device *));
  87 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  88                              int type, unsigned long long sta);
  89 void acpi_device_add_finalize(struct acpi_device *device);
  90 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  91 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
  92 int acpi_unbind_one(struct device *dev);
  93 bool acpi_device_is_present(struct acpi_device *adev);
  94
  95 /* --------------------------------------------------------------------------
  96                                   Power Resource
  97    -------------------------------------------------------------------------- */
  98 int acpi_power_init(void);
  99 void acpi_power_resources_list_free(struct list_head *list);
 100 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 101                                  struct list_head *list);
 102 int acpi_add_power_resource(acpi_handle handle);
 103 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 104 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 105 int acpi_device_sleep_wake(struct acpi_device *dev,
 106                            int enable, int sleep_state, int dev_state);
 107 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 108 int acpi_power_on_resources(struct acpi_device *device, int state);
 109 int acpi_power_transition(struct acpi_device *device, int state);
 110
 111 int acpi_device_update_power(struct acpi_device *device, int *state_p);
 112
 113 int acpi_wakeup_device_init(void);
 114 void acpi_early_processor_set_pdc(void);
 115
 116 /* --------------------------------------------------------------------------
 117                                   Embedded Controller
 118    -------------------------------------------------------------------------- */
 119 struct acpi_ec {
 120         acpi_handle handle;
 121         unsigned long gpe;
 122         unsigned long command_addr;
 123         unsigned long data_addr;
 124         unsigned long global_lock;
 125         unsigned long flags;
 126         struct mutex mutex;
 127         wait_queue_head_t wait;
 128         struct list_head list;
 129         struct transaction *curr;
 130         spinlock_t lock;
 131 };
 132
 133 extern struct acpi_ec *first_ec;
 134
 135 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 136 /* External interfaces use first EC only, so remember */
 137 typedef int (*acpi_ec_query_func) (void *data);
 138
 139 int acpi_ec_init(void);
 140 int acpi_ec_ecdt_probe(void);
 141 int acpi_boot_ec_enable(void);
 142 void acpi_ec_block_transactions(void);
 143 void acpi_ec_unblock_transactions(void);
 144 void acpi_ec_unblock_transactions_early(void);
 145 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 146                               acpi_handle handle, acpi_ec_query_func func,
 147                               void *data);
 148 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 149
 150
 151 /*--------------------------------------------------------------------------
 152                                   Suspend/Resume
 153   -------------------------------------------------------------------------- */
 154 extern int acpi_sleep_init(void);
 155
 156 #ifdef CONFIG_ACPI_SLEEP
 157 int acpi_sleep_proc_init(void);
 158 int suspend_nvs_alloc(void);
 159 void suspend_nvs_free(void);
 160 int suspend_nvs_save(void);
 161 void suspend_nvs_restore(void);
 162 #else
 163 static inline int acpi_sleep_proc_init(void) { return 0; }
 164 static inline int suspend_nvs_alloc(void) { return 0; }
 165 static inline void suspend_nvs_free(void) {}
 166 static inline int suspend_nvs_save(void) { return 0; }
 167 static inline void suspend_nvs_restore(void) {}
 168 #endif
 169
 170 /*--------------------------------------------------------------------------
 171                                 Platform bus support
 172   -------------------------------------------------------------------------- */
 173 struct platform_device;
 174
 175 int acpi_create_platform_device(struct acpi_device *adev,
 176                                 const struct acpi_device_id *id);
 177
 178 /*--------------------------------------------------------------------------
 179                                         Video
 180   -------------------------------------------------------------------------- */
 181 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 182 bool acpi_osi_is_win8(void);
 183 #endif
 184
 185 #endif /* _ACPI_INTERNAL_H_ */