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