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kernel/linux-imx6_3.14.28/drivers/acpi/internal.h 6.53 KB
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  /*
   * acpi/internal.h
   * For use by Linux/ACPI infrastructure, not drivers
   *
   * Copyright (c) 2009, Intel Corporation.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms and conditions of the GNU General Public License,
   * version 2, as published by the Free Software Foundation.
   *
   * This program is distributed in the hope it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
   */
  
  #ifndef _ACPI_INTERNAL_H_
  #define _ACPI_INTERNAL_H_
  
  #define PREFIX "ACPI: "
  
  acpi_status acpi_os_initialize1(void);
  int init_acpi_device_notify(void);
  int acpi_scan_init(void);
  void acpi_pci_root_init(void);
  void acpi_pci_link_init(void);
  void acpi_processor_init(void);
  void acpi_platform_init(void);
  int acpi_sysfs_init(void);
  #ifdef CONFIG_ACPI_CONTAINER
  void acpi_container_init(void);
  #else
  static inline void acpi_container_init(void) {}
  #endif
  #ifdef CONFIG_ACPI_DOCK
  void acpi_dock_init(void);
  #else
  static inline void acpi_dock_init(void) {}
  #endif
  #ifdef CONFIG_ACPI_HOTPLUG_MEMORY
  void acpi_memory_hotplug_init(void);
  #else
  static inline void acpi_memory_hotplug_init(void) {}
  #endif
  #ifdef CONFIG_X86
  void acpi_cmos_rtc_init(void);
  #else
  static inline void acpi_cmos_rtc_init(void) {}
  #endif
  
  extern bool acpi_force_hot_remove;
  
  void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  				    const char *name);
  int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  				       const char *hotplug_profile_name);
  void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  
  #ifdef CONFIG_DEBUG_FS
  extern struct dentry *acpi_debugfs_dir;
  int acpi_debugfs_init(void);
  #else
  static inline void acpi_debugfs_init(void) { return; }
  #endif
  #ifdef CONFIG_X86_INTEL_LPSS
  void acpi_lpss_init(void);
  #else
  static inline void acpi_lpss_init(void) {}
  #endif
  
  bool acpi_queue_hotplug_work(struct work_struct *work);
  bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  
  /* --------------------------------------------------------------------------
                       Device Node Initialization / Removal
     -------------------------------------------------------------------------- */
  #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  
  int acpi_device_add(struct acpi_device *device,
  		    void (*release)(struct device *));
  void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  			     int type, unsigned long long sta);
  void acpi_device_add_finalize(struct acpi_device *device);
  void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  int acpi_bind_one(struct device *dev, struct acpi_device *adev);
  int acpi_unbind_one(struct device *dev);
  bool acpi_device_is_present(struct acpi_device *adev);
  
  /* --------------------------------------------------------------------------
                                    Power Resource
     -------------------------------------------------------------------------- */
  int acpi_power_init(void);
  void acpi_power_resources_list_free(struct list_head *list);
  int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
  				 struct list_head *list);
  int acpi_add_power_resource(acpi_handle handle);
  void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
  int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
  int acpi_device_sleep_wake(struct acpi_device *dev,
                             int enable, int sleep_state, int dev_state);
  int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
  int acpi_power_on_resources(struct acpi_device *device, int state);
  int acpi_power_transition(struct acpi_device *device, int state);
  
  int acpi_device_update_power(struct acpi_device *device, int *state_p);
  
  int acpi_wakeup_device_init(void);
  void acpi_early_processor_set_pdc(void);
  
  /* --------------------------------------------------------------------------
                                    Embedded Controller
     -------------------------------------------------------------------------- */
  struct acpi_ec {
  	acpi_handle handle;
  	unsigned long gpe;
  	unsigned long command_addr;
  	unsigned long data_addr;
  	unsigned long global_lock;
  	unsigned long flags;
  	struct mutex mutex;
  	wait_queue_head_t wait;
  	struct list_head list;
  	struct transaction *curr;
  	spinlock_t lock;
  };
  
  extern struct acpi_ec *first_ec;
  
  /* If we find an EC via the ECDT, we need to keep a ptr to its context */
  /* External interfaces use first EC only, so remember */
  typedef int (*acpi_ec_query_func) (void *data);
  
  int acpi_ec_init(void);
  int acpi_ec_ecdt_probe(void);
  int acpi_boot_ec_enable(void);
  void acpi_ec_block_transactions(void);
  void acpi_ec_unblock_transactions(void);
  void acpi_ec_unblock_transactions_early(void);
  int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
  			      acpi_handle handle, acpi_ec_query_func func,
  			      void *data);
  void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
  
  
  /*--------------------------------------------------------------------------
                                    Suspend/Resume
    -------------------------------------------------------------------------- */
  extern int acpi_sleep_init(void);
  
  #ifdef CONFIG_ACPI_SLEEP
  int acpi_sleep_proc_init(void);
  int suspend_nvs_alloc(void);
  void suspend_nvs_free(void);
  int suspend_nvs_save(void);
  void suspend_nvs_restore(void);
  #else
  static inline int acpi_sleep_proc_init(void) { return 0; }
  static inline int suspend_nvs_alloc(void) { return 0; }
  static inline void suspend_nvs_free(void) {}
  static inline int suspend_nvs_save(void) { return 0; }
  static inline void suspend_nvs_restore(void) {}
  #endif
  
  /*--------------------------------------------------------------------------
  				Platform bus support
    -------------------------------------------------------------------------- */
  struct platform_device;
  
  int acpi_create_platform_device(struct acpi_device *adev,
  				const struct acpi_device_id *id);
  
  /*--------------------------------------------------------------------------
  					Video
    -------------------------------------------------------------------------- */
  #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
  bool acpi_osi_is_win8(void);
  #endif
  
  #endif /* _ACPI_INTERNAL_H_ */