2009-07-28 20:45:54 +00:00
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/*
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* acpi/internal.h
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* For use by Linux/ACPI infrastructure, not drivers
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*
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* Copyright (c) 2009, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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2010-07-16 11:11:31 +00:00
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#ifndef _ACPI_INTERNAL_H_
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#define _ACPI_INTERNAL_H_
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2009-07-28 20:45:54 +00:00
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#define PREFIX "ACPI: "
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2009-03-13 18:08:26 +00:00
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2009-03-24 22:50:09 +00:00
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int init_acpi_device_notify(void);
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2009-03-24 22:49:43 +00:00
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int acpi_scan_init(void);
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2010-07-15 02:46:30 +00:00
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int acpi_sysfs_init(void);
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2009-03-24 22:49:43 +00:00
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2010-07-15 02:46:15 +00:00
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#ifdef CONFIG_DEBUG_FS
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2011-05-26 10:26:23 +00:00
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extern struct dentry *acpi_debugfs_dir;
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2010-07-15 02:46:15 +00:00
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int acpi_debugfs_init(void);
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#else
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2011-05-26 10:26:23 +00:00
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static inline void acpi_debugfs_init(void) { return; }
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2010-07-15 02:46:15 +00:00
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#endif
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2013-01-17 13:11:05 +00:00
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/* --------------------------------------------------------------------------
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Device Node Initialization / Removal
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-------------------------------------------------------------------------- */
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#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
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ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
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int acpi_device_register(struct acpi_device *device,
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void (*release)(struct device *));
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void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
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int type, unsigned long long sta);
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void acpi_free_ids(struct acpi_device *device);
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2009-03-13 18:08:26 +00:00
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/* --------------------------------------------------------------------------
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Power Resource
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-------------------------------------------------------------------------- */
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2009-03-24 22:49:53 +00:00
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int acpi_power_init(void);
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2013-01-17 13:11:05 +00:00
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void acpi_add_power_resource(acpi_handle handle);
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ACPI / PM: Rework the handling of devices depending on power resources
Commit 0090def6 (ACPI: Add interface to register/unregister device
to/from power resources) made it possible to indicate to the ACPI
core that if the given device depends on any power resources, then
it should be resumed as soon as all of the power resources required
by it to transition to the D0 power state have been turned on.
Unfortunately, however, this was a mistake, because all devices
depending on power resources should be treated this way (i.e. they
should be resumed when all power resources required by their D0
state have been turned on) and for the majority of those devices
the ACPI core can figure out by itself which (physical) devices
depend on what power resources.
For this reason, replace the code added by commit 0090def6 with a
new, much more straightforward, mechanism that will be used
internally by the ACPI core and remove all references to that code
from kernel subsystems using ACPI.
For the cases when there are (physical) devices that should be
resumed whenever a not directly related ACPI device node goes into
D0 as a result of power resources configuration changes, like in
the SATA case, add two new routines, acpi_dev_pm_add_dependent()
and acpi_dev_pm_remove_dependent(), allowing subsystems to manage
such dependencies. Convert the SATA subsystem to use the new
functions accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-17 13:11:05 +00:00
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void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
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2009-03-13 18:08:26 +00:00
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int acpi_device_sleep_wake(struct acpi_device *dev,
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int enable, int sleep_state, int dev_state);
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2010-11-24 23:05:17 +00:00
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int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
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2010-11-24 23:06:55 +00:00
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int acpi_power_on_resources(struct acpi_device *device, int state);
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2009-03-13 18:08:26 +00:00
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int acpi_power_transition(struct acpi_device *device, int state);
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2010-11-24 23:08:36 +00:00
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int acpi_bus_init_power(struct acpi_device *device);
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2009-03-13 18:08:26 +00:00
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2009-03-24 22:50:19 +00:00
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int acpi_wakeup_device_init(void);
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2009-12-20 19:19:09 +00:00
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void acpi_early_processor_set_pdc(void);
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2009-03-24 22:50:19 +00:00
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2009-03-13 18:08:26 +00:00
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/* --------------------------------------------------------------------------
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Embedded Controller
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-------------------------------------------------------------------------- */
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2010-07-16 11:11:31 +00:00
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struct acpi_ec {
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acpi_handle handle;
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unsigned long gpe;
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unsigned long command_addr;
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unsigned long data_addr;
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unsigned long global_lock;
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unsigned long flags;
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2012-10-22 23:29:27 +00:00
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struct mutex mutex;
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2010-07-16 11:11:31 +00:00
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wait_queue_head_t wait;
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struct list_head list;
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struct transaction *curr;
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2012-10-22 23:29:27 +00:00
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spinlock_t lock;
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2010-07-16 11:11:31 +00:00
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};
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extern struct acpi_ec *first_ec;
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2012-12-20 23:36:40 +00:00
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int acpi_pci_root_init(void);
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2009-03-24 22:49:48 +00:00
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int acpi_ec_init(void);
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2009-03-13 18:08:26 +00:00
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int acpi_ec_ecdt_probe(void);
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int acpi_boot_ec_enable(void);
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2010-04-08 23:40:38 +00:00
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void acpi_ec_block_transactions(void);
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void acpi_ec_unblock_transactions(void);
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void acpi_ec_unblock_transactions_early(void);
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2009-03-13 18:08:26 +00:00
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/*--------------------------------------------------------------------------
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Suspend/Resume
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-------------------------------------------------------------------------- */
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extern int acpi_sleep_init(void);
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2009-03-24 22:50:14 +00:00
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#ifdef CONFIG_ACPI_SLEEP
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int acpi_sleep_proc_init(void);
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2011-01-07 00:43:44 +00:00
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int suspend_nvs_alloc(void);
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void suspend_nvs_free(void);
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int suspend_nvs_save(void);
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void suspend_nvs_restore(void);
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2009-03-24 22:50:14 +00:00
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#else
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static inline int acpi_sleep_proc_init(void) { return 0; }
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2011-01-07 00:43:44 +00:00
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static inline int suspend_nvs_alloc(void) { return 0; }
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static inline void suspend_nvs_free(void) {}
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2011-01-12 21:03:20 +00:00
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static inline int suspend_nvs_save(void) { return 0; }
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2011-01-07 00:43:44 +00:00
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static inline void suspend_nvs_restore(void) {}
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2009-03-24 22:50:14 +00:00
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#endif
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2010-07-16 11:11:31 +00:00
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2012-10-31 21:45:02 +00:00
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/*--------------------------------------------------------------------------
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Platform bus support
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-------------------------------------------------------------------------- */
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struct platform_device;
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struct platform_device *acpi_create_platform_device(struct acpi_device *adev);
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2010-07-16 11:11:31 +00:00
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#endif /* _ACPI_INTERNAL_H_ */
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