linux/drivers/acpi/internal.h
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   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
  26int init_acpi_device_notify(void);
  27int acpi_scan_init(void);
  28int acpi_sysfs_init(void);
  29
  30#ifdef CONFIG_DEBUG_FS
  31extern struct dentry *acpi_debugfs_dir;
  32int acpi_debugfs_init(void);
  33#else
  34static inline void acpi_debugfs_init(void) { return; }
  35#endif
  36
  37/* --------------------------------------------------------------------------
  38                                  Power Resource
  39   -------------------------------------------------------------------------- */
  40int acpi_power_init(void);
  41int acpi_device_sleep_wake(struct acpi_device *dev,
  42                           int enable, int sleep_state, int dev_state);
  43int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
  44int acpi_power_on_resources(struct acpi_device *device, int state);
  45int acpi_power_transition(struct acpi_device *device, int state);
  46int acpi_bus_init_power(struct acpi_device *device);
  47
  48int acpi_wakeup_device_init(void);
  49void acpi_early_processor_set_pdc(void);
  50
  51/* --------------------------------------------------------------------------
  52                                  Embedded Controller
  53   -------------------------------------------------------------------------- */
  54struct 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
  68extern struct acpi_ec *first_ec;
  69
  70int acpi_ec_init(void);
  71int acpi_ec_ecdt_probe(void);
  72int acpi_boot_ec_enable(void);
  73void acpi_ec_block_transactions(void);
  74void acpi_ec_unblock_transactions(void);
  75void acpi_ec_unblock_transactions_early(void);
  76
  77/*--------------------------------------------------------------------------
  78                                  Suspend/Resume
  79  -------------------------------------------------------------------------- */
  80extern int acpi_sleep_init(void);
  81
  82#ifdef CONFIG_ACPI_SLEEP
  83int acpi_sleep_proc_init(void);
  84int suspend_nvs_alloc(void);
  85void suspend_nvs_free(void);
  86int suspend_nvs_save(void);
  87void suspend_nvs_restore(void);
  88#else
  89static inline int acpi_sleep_proc_init(void) { return 0; }
  90static inline int suspend_nvs_alloc(void) { return 0; }
  91static inline void suspend_nvs_free(void) {}
  92static inline int suspend_nvs_save(void) { return 0; }
  93static inline void suspend_nvs_restore(void) {}
  94#endif
  95
  96#endif /* _ACPI_INTERNAL_H_ */
  97
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