freebsd-skq/sys/dev/acpica/acpiio.h
Nate Lawson 00a304487f Update the suspend/resume user API while maintaining backwards compat.
Improvements:
* /etc/rc.suspend,rc.resume are always run, no matter the source of the
  suspend request (user or kernel, apm or acpi)
* suspend now requires positive user acknowledgement.  If a user program
  wants to cancel the suspend, they can.  If one of the user programs
  hangs or doesn't respond within 10 seconds, the system suspends anyway.
* /dev/apm is clonable, allowing multiple listeners for suspend events.
  In the future, xorg-server can use this to be informed about suspend
  even if there are other listeners (i.e. apmd).

Changes:
* Two new ACPI ioctls:  REQSLPSTATE and ACKSLPSTATE.  Request begins the
  process of suspending by notifying all listeners.  acpi is monitored by
  devd(8) and /dev/apm listener(s) are also counted.  Users register their
  approval or disapproval via Ack.  If anyone disapproves, suspend is vetoed.
* Old user programs or kernel modules that used SETSLPSTATE continue to
  work.  A message is printed once that this interface is deprecated.
* acpiconf gains the -k flag to ack the suspend request.  This flag is
  undocumented on purpose since it's only used by /etc/rc.suspend.  It is
  not intended to be a permanent change and will be removed once a better
  power API is implemented.
* S5 (power off) is no longer supported via acpiconf -s 5 or apm -z/-Z.
  This restores previous behavior of halt/shutdown -p being the interface.
* Miscellaneous improvements to error reporting

Approved by:	re
2007-06-21 22:50:37 +00:00

115 lines
4.2 KiB
C

/*-
* Copyright (c) 1999 Takanori Watanabe <takawata@jp.freebsd.org>
* Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _ACPIIO_H_
#define _ACPIIO_H_
/*
* Core ACPI subsystem ioctls
*/
#define ACPIIO_SETSLPSTATE _IOW('P', 3, int) /* DEPRECATED */
/* Request S1-5 sleep state. User is notified and then sleep proceeds. */
#define ACPIIO_REQSLPSTATE _IOW('P', 4, int)
/* Allow suspend to continue (0) or abort it (errno). */
#define ACPIIO_ACKSLPSTATE _IOW('P', 5, int)
struct acpi_battinfo {
int cap; /* percent */
int min; /* remaining time (in minutes) */
int state; /* battery state */
int rate; /* emptying rate */
};
#define ACPI_CMBAT_MAXSTRLEN 32
struct acpi_bif {
uint32_t units; /* Units (mW or mA). */
#define ACPI_BIF_UNITS_MW 0 /* Capacity in mWh, rate in mW. */
#define ACPI_BIF_UNITS_MA 1 /* Capacity in mAh, rate in mA. */
uint32_t dcap; /* Design Capacity */
uint32_t lfcap; /* Last Full capacity */
uint32_t btech; /* Battery Technology */
uint32_t dvol; /* Design voltage (mV) */
uint32_t wcap; /* WARN capacity */
uint32_t lcap; /* Low capacity */
uint32_t gra1; /* Granularity 1 (Warn to Low) */
uint32_t gra2; /* Granularity 2 (Full to Warn) */
char model[ACPI_CMBAT_MAXSTRLEN]; /* model identifier */
char serial[ACPI_CMBAT_MAXSTRLEN]; /* Serial number */
char type[ACPI_CMBAT_MAXSTRLEN]; /* Type */
char oeminfo[ACPI_CMBAT_MAXSTRLEN]; /* OEM infomation */
};
struct acpi_bst {
uint32_t state; /* Battery State */
uint32_t rate; /* Present Rate */
uint32_t cap; /* Remaining Capacity */
uint32_t volt; /* Present Voltage */
};
#define ACPI_BATT_STAT_DISCHARG 0x0001
#define ACPI_BATT_STAT_CHARGING 0x0002
#define ACPI_BATT_STAT_CRITICAL 0x0004
#define ACPI_BATT_STAT_NOT_PRESENT 0x0007
#define ACPI_BATT_STAT_MAX 0x0007
union acpi_battery_ioctl_arg {
int unit; /* Device unit or ACPI_BATTERY_ALL_UNITS. */
struct acpi_battinfo battinfo;
struct acpi_bif bif;
struct acpi_bst bst;
};
#define ACPI_BATTERY_ALL_UNITS (-1)
#define ACPI_BATT_UNKNOWN 0xffffffff /* _BST or _BIF value unknown. */
/* Common battery ioctls */
#define ACPIIO_BATT_GET_UNITS _IOR('B', 0x01, int)
#define ACPIIO_BATT_GET_BATTINFO _IOWR('B', 0x03, union acpi_battery_ioctl_arg)
#define ACPIIO_BATT_GET_BIF _IOWR('B', 0x10, union acpi_battery_ioctl_arg)
#define ACPIIO_BATT_GET_BST _IOWR('B', 0x11, union acpi_battery_ioctl_arg)
/* Control Method battery ioctls (deprecated) */
#define ACPIIO_CMBAT_GET_BIF ACPIIO_BATT_GET_BIF
#define ACPIIO_CMBAT_GET_BST ACPIIO_BATT_GET_BST
/* Get AC adapter status. */
#define ACPIIO_ACAD_GET_STATUS _IOR('A', 1, int)
#ifdef _KERNEL
typedef int (*acpi_ioctl_fn)(u_long cmd, caddr_t addr, void *arg);
extern int acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg);
extern void acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn);
#endif
#endif /* !_ACPIIO_H_ */