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 #include <linux/sysdev.h>
  25
  26 #define PREFIX "ACPI: "
  27
  28 int init_acpi_device_notify(void);
  29 int acpi_scan_init(void);
  30 int acpi_sysfs_init(void);
  31
  32 #ifdef CONFIG_DEBUG_FS
  33 int acpi_debugfs_init(void);
  34 #else
  35 static inline int acpi_debugfs_init(void) { return 0; }
  36 #endif
  37
  38 /* --------------------------------------------------------------------------
  39                                   Power Resource
  40    -------------------------------------------------------------------------- */
  41 int acpi_power_init(void);
  42 int acpi_device_sleep_wake(struct acpi_device *dev,
  43                            int enable, int sleep_state, int dev_state);
  44 int acpi_power_get_inferred_state(struct acpi_device *device);
  45 int acpi_power_transition(struct acpi_device *device, int state);
  46 extern int acpi_power_nocheck;
  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         struct sys_device sysdev;
  67 };
  68
  69 extern struct acpi_ec *first_ec;
  70
  71 int acpi_ec_init(void);
  72 int acpi_ec_ecdt_probe(void);
  73 int acpi_boot_ec_enable(void);
  74 void acpi_ec_block_transactions(void);
  75 void acpi_ec_unblock_transactions(void);
  76 void acpi_ec_unblock_transactions_early(void);
  77
  78 /*--------------------------------------------------------------------------
  79                                   Suspend/Resume
  80   -------------------------------------------------------------------------- */
  81 extern int acpi_sleep_init(void);
  82
  83 #ifdef CONFIG_ACPI_SLEEP
  84 int acpi_sleep_proc_init(void);
  85 #else
  86 static inline int acpi_sleep_proc_init(void) { return 0; }
  87 #endif
  88
  89 #endif /* _ACPI_INTERNAL_H_ */