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