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/* battstat A MATE battery meter for laptops.
* Copyright (C) 2000 by Jörgen Pehrson <jp@spektr.eu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02110-1301, USA.
*
$Id$
*/
/*
* ACPI battery functions for FreeBSD >= 5.2.
* September 2004 by Joe Marcus Clarke <marcus@FreeBSD.org>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <stdio.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/ioctl.h>
#include <machine/apm_bios.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <glib.h>
#include "acpi-freebsd.h"
#ifdef HAVE_ACPIIO
#include <dev/acpica/acpiio.h>
static gboolean
update_ac_info(struct acpi_info * acpiinfo)
{
int acline;
size_t len = sizeof(acline);
acpiinfo->ac_online = FALSE;
if (sysctlbyname(ACPI_ACLINE, &acline, &len, NULL, 0) == -1) {
return FALSE;
}
acpiinfo->ac_online = acline ? TRUE : FALSE;
return TRUE;
}
static gboolean
update_battery_info(struct acpi_info * acpiinfo)
{
union acpi_battery_ioctl_arg battio;
int i;
/* We really don't have to do this here. All of the relevant battery
* info can be obtained through sysctl. However, one day, the rate
* may be useful to get time left to full charge.
*/
for(i = BATT_MIN; i < BATT_MAX; i++) {
battio.unit = i;
if (ioctl(acpiinfo->acpifd, ACPIIO_CMBAT_GET_BIF, &battio) == -1) {
continue;
}
acpiinfo->max_capacity += battio.bif.lfcap;
acpiinfo->low_capacity += battio.bif.wcap;
acpiinfo->critical_capacity += battio.bif.lcap;
}
return TRUE;
}
gboolean
acpi_freebsd_init(struct acpi_info * acpiinfo)
{
int acpi_fd;
g_assert(acpiinfo);
acpi_fd = open(ACPIDEV, O_RDONLY);
if (acpi_fd >= 0) {
acpiinfo->acpifd = acpi_fd;
}
else {
acpiinfo->acpifd = -1;
return FALSE;
}
update_battery_info(acpiinfo);
update_ac_info(acpiinfo);
return TRUE;
}
void
acpi_freebsd_cleanup(struct acpi_info * acpiinfo)
{
g_assert(acpiinfo);
if (acpiinfo->acpifd >= 0) {
close(acpiinfo->acpifd);
acpiinfo->acpifd = -1;
}
}
/* XXX This is a hack since user-land applications can't get ACPI events yet.
* Devd provides this (or supposedly provides this), but you need to be
* root to access devd.
*/
gboolean
acpi_process_event(struct acpi_info * acpiinfo)
{
g_assert(acpiinfo);
update_ac_info(acpiinfo);
update_battery_info(acpiinfo);
return TRUE;
}
gboolean
acpi_freebsd_read(struct apm_info *apminfo, struct acpi_info * acpiinfo)
{
int time;
int life;
int acline;
int state;
size_t len;
int rate;
int remain;
union acpi_battery_ioctl_arg battio;
gboolean charging;
int i;
g_assert(acpiinfo);
charging = FALSE;
for(i = BATT_MIN; i < BATT_MAX; i++) {
battio.unit = i;
if (ioctl(acpiinfo->acpifd, ACPIIO_CMBAT_GET_BST, &battio) == -1) {
continue;
}
remain += battio.bst.cap;
rate += battio.bst.rate;
}
len = sizeof(time);
if (sysctlbyname(ACPI_TIME, &time, &len, NULL, 0) == -1) {
return FALSE;
}
len = sizeof(life);
if (sysctlbyname(ACPI_LIFE, &life, &len, NULL, 0) == -1) {
return FALSE;
}
len = sizeof(state);
if (sysctlbyname(ACPI_STATE, &state, &len, NULL, 0) == -1) {
return FALSE;
}
apminfo->ai_acline = acpiinfo->ac_online ? 1 : 0;
if (state & ACPI_BATT_STAT_CHARGING) {
apminfo->ai_batt_stat = 3;
charging = TRUE;
}
else if (state & ACPI_BATT_STAT_CRITICAL) {
/* Add a special check here since FreeBSD's ACPI interface will tell us
* when the battery is critical.
*/
apminfo->ai_batt_stat = 2;
}
else {
apminfo->ai_batt_stat = remain < acpiinfo->low_capacity ? 1 : remain < acpiinfo->critical_capacity ? 2 : 0;
}
apminfo->ai_batt_life = life;
if (!charging) {
apminfo->ai_batt_time = time;
}
else if (charging && rate > 0) {
apminfo->ai_batt_time = (int) ((acpiinfo->max_capacity-remain)/(float)rate);
}
else
apminfo->ai_batt_time = -1;
return TRUE;
}
#else /* !defined(HAVE_ACPIIO) */
gboolean
acpi_freebsd_init(struct acpi_info * acpiinfo)
{
return FALSE;
}
gboolean
acpi_process_event(struct acpi_info * acpiinfo)
{
return FALSE;
}
gboolean
acpi_freebsd_read(struct apm_info *apminfo, struct acpi_info * acpiinfo)
{
return FALSE;
}
void
acpi_freebsd_cleanup(struct acpi_info * acpiinfo)
{
}
#endif /* defined(HAVE_ACPIIO) */
#endif /* defined(__FreeBSD__) || defined(__FreeBSD_kernel__) */
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