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 int init_acpi_device_notify(void);
  27 int acpi_scan_init(void);
  28 int acpi_sysfs_init(void);
  29
  30 #ifdef CONFIG_DEBUG_FS
  31 extern struct dentry *acpi_debugfs_dir;
  32 int acpi_debugfs_init(void);
  33 #else
  34 static inline void acpi_debugfs_init(void) { return; }
  35 #endif
  36
  37 /* --------------------------------------------------------------------------
  38                                   Power Resource
  39    -------------------------------------------------------------------------- */
  40 int acpi_power_init(void);
  41 int acpi_device_sleep_wake(struct acpi_device *dev,
  42                            int enable, int sleep_state, int dev_state);
  43 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
  44 int acpi_power_on_resources(struct acpi_device *device, int state);
  45 int acpi_power_transition(struct acpi_device *device, int state);
  46 int acpi_bus_init_power(struct acpi_device *device);
  47
  48 int acpi_wakeup_device_init(void);
  49 void acpi_early_processor_set_pdc(void);
  50
  51 /* --------------------------------------------------------------------------
  52                                   Embedded Controller
  53    -------------------------------------------------------------------------- */
  54 struct acpi_ec {
  55         acpi_handle handle;
  56         unsigned long gpe;
  57         unsigned long command_addr;
  58         unsigned long data_addr;
  59         unsigned long global_lock;
  60         unsigned long flags;
  61         struct mutex lock;
  62         wait_queue_head_t wait;
  63         struct list_head list;
  64         struct transaction *curr;
  65         spinlock_t curr_lock;
  66 };
  67
  68 extern struct acpi_ec *first_ec;
  69
  70 int acpi_ec_init(void);
  71 int acpi_ec_ecdt_probe(void);
  72 int acpi_boot_ec_enable(void);
  73 void acpi_ec_block_transactions(void);
  74 void acpi_ec_unblock_transactions(void);
  75 void acpi_ec_unblock_transactions_early(void);
  76
  77 /*--------------------------------------------------------------------------
  78                                   Suspend/Resume
  79   -------------------------------------------------------------------------- */
  80 extern int acpi_sleep_init(void);
  81
  82 #ifdef CONFIG_ACPI_SLEEP
  83 int acpi_sleep_proc_init(void);
  84 int suspend_nvs_alloc(void);
  85 void suspend_nvs_free(void);
  86 int suspend_nvs_save(void);
  87 void suspend_nvs_restore(void);
  88 #else
  89 static inline int acpi_sleep_proc_init(void) { return 0; }
  90 static inline int suspend_nvs_alloc(void) { return 0; }
  91 static inline void suspend_nvs_free(void) {}
  92 static inline int suspend_nvs_save(void) { return 0; }
  93 static inline void suspend_nvs_restore(void) {}
  94 #endif
  95
  96 #endif /* _ACPI_INTERNAL_H_ */