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 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  77
  78 /* --------------------------------------------------------------------------
  79                      Device Node Initialization / Removal
  80    -------------------------------------------------------------------------- */
  81 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  82                           ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  83
  84 int acpi_device_add(struct acpi_device *device,
  85                     void (*release)(struct device *));
  86 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  87                              int type, unsigned long long sta);
  88 void acpi_device_add_finalize(struct acpi_device *device);
  89 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  90 int acpi_bind_one(struct device *dev, struct acpi_device *adev);
  91 int acpi_unbind_one(struct device *dev);
  92 bool acpi_device_is_present(struct acpi_device *adev);
  93
  94 /* --------------------------------------------------------------------------
  95                                   Power Resource
  96    -------------------------------------------------------------------------- */
  97 int acpi_power_init(void);
  98 void acpi_power_resources_list_free(struct list_head *list);
  99 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 100                                  struct list_head *list);
 101 int acpi_add_power_resource(acpi_handle handle);
 102 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 103 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
 104 int acpi_device_sleep_wake(struct acpi_device *dev,
 105                            int enable, int sleep_state, int dev_state);
 106 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 107 int acpi_power_on_resources(struct acpi_device *device, int state);
 108 int acpi_power_transition(struct acpi_device *device, int state);
 109
 110 int acpi_device_update_power(struct acpi_device *device, int *state_p);
 111
 112 int acpi_wakeup_device_init(void);
 113 void acpi_early_processor_set_pdc(void);
 114
 115 /* --------------------------------------------------------------------------
 116                                   Embedded Controller
 117    -------------------------------------------------------------------------- */
 118 struct acpi_ec {
 119         acpi_handle handle;
 120         unsigned long gpe;
 121         unsigned long command_addr;
 122         unsigned long data_addr;
 123         unsigned long global_lock;
 124         unsigned long flags;
 125         struct mutex mutex;
 126         wait_queue_head_t wait;
 127         struct list_head list;
 128         struct transaction *curr;
 129         spinlock_t lock;
 130 };
 131
 132 extern struct acpi_ec *first_ec;
 133
 134 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 135 /* External interfaces use first EC only, so remember */
 136 typedef int (*acpi_ec_query_func) (void *data);
 137
 138 int acpi_ec_init(void);
 139 int acpi_ec_ecdt_probe(void);
 140 int acpi_boot_ec_enable(void);
 141 void acpi_ec_block_transactions(void);
 142 void acpi_ec_unblock_transactions(void);
 143 void acpi_ec_unblock_transactions_early(void);
 144 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 145                               acpi_handle handle, acpi_ec_query_func func,
 146                               void *data);
 147 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 148
 149
 150 /*--------------------------------------------------------------------------
 151                                   Suspend/Resume
 152   -------------------------------------------------------------------------- */
 153 extern int acpi_sleep_init(void);
 154
 155 #ifdef CONFIG_ACPI_SLEEP
 156 int acpi_sleep_proc_init(void);
 157 int suspend_nvs_alloc(void);
 158 void suspend_nvs_free(void);
 159 int suspend_nvs_save(void);
 160 void suspend_nvs_restore(void);
 161 #else
 162 static inline int acpi_sleep_proc_init(void) { return 0; }
 163 static inline int suspend_nvs_alloc(void) { return 0; }
 164 static inline void suspend_nvs_free(void) {}
 165 static inline int suspend_nvs_save(void) { return 0; }
 166 static inline void suspend_nvs_restore(void) {}
 167 #endif
 168
 169 /*--------------------------------------------------------------------------
 170                                 Platform bus support
 171   -------------------------------------------------------------------------- */
 172 struct platform_device;
 173
 174 int acpi_create_platform_device(struct acpi_device *adev,
 175                                 const struct acpi_device_id *id);
 176
 177 /*--------------------------------------------------------------------------
 178                                         Video
 179   -------------------------------------------------------------------------- */
 180 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 181 bool acpi_osi_is_win8(void);
 182 #endif
 183
 184 #endif /* _ACPI_INTERNAL_H_ */