The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/acpica/acpiio.h

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    1 /*-
    2  * Copyright (c) 1999 Takanori Watanabe <takawata@jp.freebsd.org>
    3  * Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/9.1/sys/dev/acpica/acpiio.h 216503 2010-12-17 16:21:30Z avg $
   28  */
   29 
   30 #ifndef _ACPIIO_H_
   31 #define _ACPIIO_H_
   32 
   33 /*
   34  * Core ACPI subsystem ioctls
   35  */
   36 #define ACPIIO_SETSLPSTATE      _IOW('P', 3, int) /* DEPRECATED */
   37 
   38 /* Request S1-5 sleep state. User is notified and then sleep proceeds. */
   39 #define ACPIIO_REQSLPSTATE      _IOW('P', 4, int)
   40 
   41 /* Allow suspend to continue (0) or abort it (errno). */
   42 #define ACPIIO_ACKSLPSTATE      _IOW('P', 5, int)
   43 
   44 struct acpi_battinfo {
   45     int  cap;                           /* percent */
   46     int  min;                           /* remaining time (in minutes) */
   47     int  state;                         /* battery state */
   48     int  rate;                          /* emptying rate */
   49 };
   50 
   51 #define ACPI_CMBAT_MAXSTRLEN 32
   52 struct acpi_bif {
   53     uint32_t units;                     /* Units (mW or mA). */
   54 #define ACPI_BIF_UNITS_MW       0       /* Capacity in mWh, rate in mW. */
   55 #define ACPI_BIF_UNITS_MA       1       /* Capacity in mAh, rate in mA. */
   56     uint32_t dcap;                      /* Design Capacity */
   57     uint32_t lfcap;                     /* Last Full capacity */
   58     uint32_t btech;                     /* Battery Technology */
   59     uint32_t dvol;                      /* Design voltage (mV) */
   60     uint32_t wcap;                      /* WARN capacity */
   61     uint32_t lcap;                      /* Low capacity */
   62     uint32_t gra1;                      /* Granularity 1 (Warn to Low) */
   63     uint32_t gra2;                      /* Granularity 2 (Full to Warn) */
   64     char model[ACPI_CMBAT_MAXSTRLEN];   /* model identifier */
   65     char serial[ACPI_CMBAT_MAXSTRLEN];  /* Serial number */
   66     char type[ACPI_CMBAT_MAXSTRLEN];    /* Type */
   67     char oeminfo[ACPI_CMBAT_MAXSTRLEN]; /* OEM infomation */
   68 };
   69 
   70 struct acpi_bst {
   71     uint32_t state;                     /* Battery State */
   72     uint32_t rate;                      /* Present Rate */
   73     uint32_t cap;                       /* Remaining Capacity */
   74     uint32_t volt;                      /* Present Voltage */
   75 };
   76 
   77 /*
   78  * Note that the following definitions represent status bits for internal
   79  * driver state.  The first three of them (charging, discharging and critical)
   80  * conveninetly conform to ACPI specification of status returned by _BST
   81  * method.  Other definitions (not present, etc) are synthetic.
   82  * Also note that according to the specification the charging and discharging
   83  * status bits must not be set at the same time.
   84  */
   85 #define ACPI_BATT_STAT_DISCHARG         0x0001
   86 #define ACPI_BATT_STAT_CHARGING         0x0002
   87 #define ACPI_BATT_STAT_CRITICAL         0x0004
   88 #define ACPI_BATT_STAT_INVALID                                  \
   89     (ACPI_BATT_STAT_DISCHARG | ACPI_BATT_STAT_CHARGING)
   90 #define ACPI_BATT_STAT_BST_MASK                                 \
   91     (ACPI_BATT_STAT_INVALID | ACPI_BATT_STAT_CRITICAL)
   92 #define ACPI_BATT_STAT_NOT_PRESENT      ACPI_BATT_STAT_BST_MASK
   93 
   94 union acpi_battery_ioctl_arg {
   95     int                  unit;  /* Device unit or ACPI_BATTERY_ALL_UNITS. */
   96 
   97     struct acpi_battinfo battinfo;
   98 
   99     struct acpi_bif      bif;
  100     struct acpi_bst      bst;
  101 };
  102 
  103 #define ACPI_BATTERY_ALL_UNITS  (-1)
  104 #define ACPI_BATT_UNKNOWN       0xffffffff /* _BST or _BIF value unknown. */
  105 
  106 /* Common battery ioctls */
  107 #define ACPIIO_BATT_GET_UNITS     _IOR('B', 0x01, int)
  108 #define ACPIIO_BATT_GET_BATTINFO _IOWR('B', 0x03, union acpi_battery_ioctl_arg)
  109 #define ACPIIO_BATT_GET_BIF      _IOWR('B', 0x10, union acpi_battery_ioctl_arg)
  110 #define ACPIIO_BATT_GET_BST      _IOWR('B', 0x11, union acpi_battery_ioctl_arg)
  111 
  112 /* Control Method battery ioctls (deprecated) */
  113 #define ACPIIO_CMBAT_GET_BIF     ACPIIO_BATT_GET_BIF
  114 #define ACPIIO_CMBAT_GET_BST     ACPIIO_BATT_GET_BST
  115 
  116 /* Get AC adapter status. */
  117 #define ACPIIO_ACAD_GET_STATUS    _IOR('A', 1, int)
  118 
  119 #ifdef _KERNEL
  120 typedef int     (*acpi_ioctl_fn)(u_long cmd, caddr_t addr, void *arg);
  121 extern int      acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg);
  122 extern void     acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn);
  123 #endif
  124 
  125 #endif /* !_ACPIIO_H_ */

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