/* Return a file descriptor for the apm_bios device, or -1 if there is an
* error. Is this method secure? Should we make the device in /dev
* instead of /tmp?
*
* apenwarr 2001/05/11: just throw out the weird temporary device file stuff.
* It was only for ancient kernel versions anyway.
*/
int apm_open(void)
{
int fd;
apm_info i;
if (access(APM_PROC, R_OK) || apm_read(&i) == 1)
return -1;
if (i.driver_version[0] >= '1')
{
if ((fd = open(APM_DEVICE, O_RDWR)) < 0)
{
/* Try to create it. This is reasonable
* for backward compatibility.
*/
if (mknod(APM_DEVICE, S_IFCHR | S_IRUSR | S_IWUSR, apm_dev()))
{
unlink(APM_DEVICE);
return -1;
}
fd = open(APM_DEVICE, O_RDWR);
}
return fd;
}
return -1;
}
/* If APM support of the right version exists in kernel, return zero.
* Otherwise, return 1 if no support exists, or 2 if it is the wrong
* version. *NOTE* The sense of the return value is not intuitive.
*/
int apm_exists(void)
{
apm_info i;
if (access(APM_PROC, R_OK))
return 1;
return apm_read(&i);
}
int
apm_init(void)
{
struct olsr_apm_info ApmInfo;
OLSR_PRINTF(3, "Initializing APM\n");
if (apm_read(&ApmInfo) < 0)
return -1;
apm_printinfo(&ApmInfo);
return 0;
}
/*
* If APM support of the right version exists in kernel, return zero.
* Otherwise, return 1 if no support exists, or 2 if it is the wrong
* version. *NOTE* The sense of the return value is not intuitive.
*/
int apm_exists(void)
{
int fd;
apm_info i;
/* This will force auto-load of the apm module if necessary. */
fd = open(APM_DEVICE, O_WRONLY);
if (fd >= 0)
close(fd);
if (access(APM_PROC, R_OK))
return 1;
return apm_read(&i);
}
static const char *
apm_readinfo (BatteryStatus *status)
{
/* Code for Linux by Thomas Hood <*****@*****.**>. apm_read() will
read from /proc/... instead and we do not need to open the device
ourselves.
*/
if (DEBUG) g_print("apm_readinfo() (Linux)\n");
/* ACPI support added by Lennart Poettering <*****@*****.**> 10/27/2001
* Updated by David Moore <*****@*****.**> 5/29/2003 to poll less and
* use ACPI events. */
if (using_acpi && acpiinfo.event_fd >= 0) {
if (acpi_count <= 0) {
/* Only call this one out of 30 calls to apm_readinfo() (every 30 seconds)
* since reading the ACPI system takes CPU cycles. */
acpi_count=30;
acpi_linux_read(&apminfo, &acpiinfo);
}
acpi_count--;
}
/* If we lost the file descriptor with ACPI events, try to get it back. */
else if (using_acpi) {
if (acpi_linux_init(&acpiinfo)) {
acpiwatch = g_io_add_watch (acpiinfo.channel,
G_IO_IN | G_IO_ERR | G_IO_HUP,
acpi_callback, NULL);
acpi_linux_read(&apminfo, &acpiinfo);
}
}
else
apm_read(&apminfo);
status->present = TRUE;
status->on_ac_power = apminfo.ac_line_status ? 1 : 0;
status->percent = (guint) apminfo.battery_percentage;
status->charging = (apminfo.battery_flags & 0x8) ? TRUE : FALSE;
status->minutes = apminfo.battery_time;
return NULL;
}
/*
* Look up the device number of the apm_bios device.
*/
dev_t apm_dev(void)
{
FILE *str;
static int cached = -1;
char buf[80];
char *pt;
apm_info i;
if (cached >= 0)
return cached;
if (access(APM_PROC, R_OK) || apm_read(&i) == 1)
return cached = -1;
if (i.driver_version[0] == '1')
return cached = makedev(10, 134);
if (!(str = fopen(APM_DEV, "r")))
return -1;
while (fgets(buf, sizeof(buf) - 1, str))
{
buf[sizeof(buf) - 1] = '\0';
for (pt = buf; *pt && isspace(*pt); ++pt); /* skip leading spaces */
for (; *pt && !isspace(*pt); ++pt); /* find next space */
if (isspace(*pt))
{
*pt++ = '\0';
pt[strlen(pt) - 1] = '\0'; /* get rid of newline */
if (!strcmp(pt, APM_NAME))
{
fclose(str);
return cached = makedev(atoi(buf), 0);
}
}
}
fclose(str);
return cached = -1;
}
void get_power_status(pm_status *power_status)
{
/* Is this an ACPI system? */
if (pm_type == PM_ACPI)
{
static ACPIinfo acpiinfo;
static ACADstate acadstate;
static ACPIstate acpistate;
read_acpi_info(&acpiinfo, Battery - 1);
read_acpi_state(&acpistate, &acpiinfo, Battery - 1);
read_acad_state(&acadstate);
/* Check if we are on ac power */
ac_on_line = power_status->ac_on_line = acadstate.state;
/* Check to see if we are charging. */
if (acpistate.state == CHARGING) power_status->battery_charging=1;
else power_status->battery_charging=0;
/* Check battery time and percentage */
power_status->battery_time = acpistate.rtime;
power_status->battery_percentage = acpistate.percentage;
if (power_status->battery_percentage > 100) power_status->battery_percentage = 100;
battery_percentage = power_status->battery_percentage;
/* Check if battery is plugged in */
battery_present = power_status->battery_present = acpistate.present;
/* Get temperature and fan status */
power_status->fan_status=get_fan_status();
get_temperature(&(power_status->temperature), &(power_status->temp_is_celsius));
if (fast_charge_mode && (power_status->battery_percentage == 100)) fast_battery_charge(0);
/* Let's see wether we failed to get battery time */
if (battery_present && (battery_percentage < 100) && (power_status->battery_time <= 0))
{
/* OK, we failed, we calculate the value ourselves */
power_status->battery_time = calculate_battery_time(battery_percentage, ac_on_line);
}
return;
}
/* Is this an APM system? */
if (pm_type == PM_APM)
{
struct_apm_data apm_data;
if (!apm_read(&apm_data))
{
fprintf(stderr, "Could not read APM info!\n");
return;
}
ac_on_line = power_status->ac_on_line = apm_data.ac_line_status;
if ( apm_data.battery_percentage == -1)
{
battery_present = power_status->battery_present = 0;
battery_percentage = power_status->battery_percentage = 0;
}
else
{
battery_present = power_status->battery_present = 1;
power_status->battery_percentage = apm_data.battery_percentage;
if (power_status->battery_percentage > 100) power_status->battery_percentage = 100;
battery_percentage = power_status->battery_percentage;
}
if ( (int)(apm_data.battery_status) == 3)
power_status->battery_charging=1;
else power_status->battery_charging=0;
power_status->battery_time = (apm_data.using_minutes) ? apm_data.battery_time : apm_data.battery_time / 60;
power_status->fan_status=get_fan_status();
get_temperature(&(power_status->temperature), &(power_status->temp_is_celsius));
if (fast_charge_mode && (power_status->battery_percentage == 100)) fast_battery_charge(0);
return;
}
}
static gboolean
update_apm_status(t_battmon *battmon)
{
#ifdef __OpenBSD__
struct apm_power_info apm;
#else
struct apm_info apm;
#endif
int charge;
int time_remaining;
gboolean acline;
gchar buffer[128];
if(battmon->method == BM_BROKEN) {
/* See if ACPI or APM support has been enabled yet */
if(!detect_battery_info(battmon)) return TRUE;
if(battmon->timeoutid != 0) g_source_remove(battmon->timeoutid);
/* Poll only once per minute if using ACPI due to a bug */
if(battmon->method == BM_USE_ACPI) {
battmon->timeoutid = g_timeout_add(60 * 1000, (GSourceFunc) update_apm_status, battmon);
}
else {
battmon->timeoutid = g_timeout_add(2 * 1000, (GSourceFunc) update_apm_status, battmon);
}
}
/* Show initial state if using ACPI rather than waiting a minute */
if(battmon->flag) {
battmon->flag = FALSE;
g_source_remove(battmon->timeoutid);
battmon->timeoutid = g_timeout_add(60 * 1000, (GSourceFunc) update_apm_status, battmon);
}
#ifdef __FreeBSD__
/* This is how I read the information from the APM subsystem under
FreeBSD. Each time this functions is called (once every second)
the APM device is opened, read from and then closed.
*/
int fd;
battmon->method = BM_BROKEN;
fd = open(APMDEVICE, O_RDONLY);
if (fd == -1) return TRUE;
if (ioctl(fd, APMIO_GETINFO, &apm) == -1)
return TRUE;
close(fd);
acline = apm.ai_acline ? TRUE : FALSE;
time_remaining = apm.ai_batt_time;
time_remaining = time_remaining / 60; /* convert from seconds to minutes */
charge = apm.ai_batt_life;
#elif __OpenBSD__
/* Code for OpenBSD by Joe Ammond <*****@*****.**>. Using the same
procedure as for FreeBSD.
*/
int fd;
battmon->method = BM_BROKEN;
fd = open(APMDEVICE, O_RDONLY);
if (fd == -1) return TRUE;
if (ioctl(fd, APM_IOC_GETPOWER, &apminfo) == -1)
return TRUE;
close(fd);
charge = apm.battery_life;
time_remaining = apm.minutes_left;
acline = apm.ac_state ? TRUE : FALSE;
#elif __linux__
if(battmon->method == BM_USE_ACPI) acpi_linux_read(&apm);
else apm_read(&apm); /* not broken and not using ACPI, assume APM */
charge = apm.battery_percentage;
if(battmon->method == BM_USE_ACPI) time_remaining = 0; /* no such info for ACPI :( */
else time_remaining = apm.battery_time;
acline = apm.ac_line_status ? TRUE : FALSE;
#endif
if(charge < 0) charge = 0;
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(battmon->battstatus), charge / 100.0);
if(battmon->options.tooltip_display_percentage && battmon->options.tooltip_display_time) {
if(acline)
g_snprintf(buffer, sizeof(buffer), _("%d%% (AC on-line)"), charge);
else if(time_remaining > 0)
g_snprintf(buffer, sizeof(buffer), _("%d%% (%d:%.2d) remaining"), charge, time_remaining / 60, time_remaining % 60);
else
g_snprintf(buffer, sizeof(buffer), _("%d%% (AC off-line)"), charge);
add_tooltip(battmon->ebox, buffer);
}
else if(battmon->options.tooltip_display_percentage) {
g_snprintf(buffer, sizeof(buffer), _("%d%%"), charge);
add_tooltip(battmon->ebox, buffer);
}
else if(battmon->options.tooltip_display_time) {
if(acline)
g_snprintf(buffer, sizeof(buffer), _("AC on-line"));
else if(time_remaining > 0)
g_snprintf(buffer, sizeof(buffer), _("%d:%.2d remaining"), time_remaining / 60, time_remaining % 60);
else
g_snprintf(buffer, sizeof(buffer), _("AC off-line"));
add_tooltip(battmon->ebox, buffer);
}
else add_tooltip(battmon->ebox, NULL);
if(battmon->options.display_percentage) {
g_snprintf(buffer, sizeof(buffer), _("%d%%"), charge);
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(battmon->battstatus), buffer);
}
else gtk_progress_bar_set_text(GTK_PROGRESS_BAR(battmon->battstatus), NULL);
if(!battmon->critical && charge <= battmon->options.critical_percentage) {
battmon->critical = TRUE;
battmon->low = TRUE;
if(battmon->options.action_on_critical == BM_MESSAGE)
xfce_warn(_("WARNING: Your battery has reached critical status. You should plug in or shutdown your computer now to avoid possible data loss."));
if(battmon->options.action_on_critical == BM_COMMAND) {
if(battmon->options.command_on_critical && battmon->options.command_on_critical[0])
exec_cmd(battmon->options.command_on_critical, 0, 0);
}
if(battmon->options.action_on_critical == BM_COMMAND_TERM) {
if(battmon->options.command_on_critical && battmon->options.command_on_critical[0])
exec_cmd(battmon->options.command_on_critical, 1, 0);
}
}
else if(battmon->critical && charge > battmon->options.critical_percentage)
battmon->critical = FALSE;
if(!battmon->low && charge <= battmon->options.low_percentage) {
battmon->low = TRUE;
if(battmon->options.action_on_low == BM_MESSAGE)
xfce_warn(_("WARNING: Your battery is running low. You should consider plugging in or shutting down your computer soon to avoid possible data loss."));
if(battmon->options.action_on_low == BM_COMMAND) {
if(battmon->options.command_on_low && battmon->options.command_on_low[0])
exec_cmd(battmon->options.command_on_low, 0, 0);
}
if(battmon->options.action_on_low == BM_COMMAND_TERM) {
if(battmon->options.command_on_low && battmon->options.command_on_low[0])
exec_cmd(battmon->options.command_on_low, 1, 0);
}
}
else if(battmon->low && charge > battmon->options.low_percentage)
battmon->low = FALSE;
return TRUE;
}
gboolean
detect_battery_info(t_battmon *battmon)
{
#ifdef __OpenBSD__
struct apm_power_info apm;
#else
struct apm_info apm;
#endif
#ifdef __FreeBSD__
/* This is how I read the information from the APM subsystem under
FreeBSD. Each time this functions is called (once every second)
the APM device is opened, read from and then closed.
*/
int fd;
battmon->method = BM_BROKEN;
fd = open(APMDEVICE, O_RDONLY);
if (fd == -1) return FALSE;
if (ioctl(fd, APMIO_GETINFO, &apm) == -1)
return FALSE;
close(fd);
battmon->method = BM_USE_APM;
return TRUE;
#elif __OpenBSD__
/* Code for OpenBSD by Joe Ammond <*****@*****.**>. Using the same
procedure as for FreeBSD.
*/
int fd;
battmon->method = BM_BROKEN;
fd = open(APMDEVICE, O_RDONLY);
if (fd == -1) return FALSE;
if (ioctl(fd, APM_IOC_GETPOWER, &apm) == -1)
return FALSE;
close(fd);
battmon->method = BM_USE_APM;
return TRUE;
#elif __linux__
/* First check to see if ACPI is available */
if(acpi_linux_read(&apm)) {
/* ACPI detected and working */
battmon->method = BM_USE_ACPI;
return TRUE;
}
if(apm_read(&apm) == 0) {
/* ACPI not detected, but APM works */
battmon->method = BM_USE_APM;
return TRUE;
}
/* Neither ACPI or APM detected/working */
battmon->method = BM_BROKEN;
return FALSE;
#endif
}
void main_loop (void) {
int activity=0, sleep_now=0, total_unused=0;
int sleep_battery=0;
int prev_ac_line_status=0;
time_t nowtime, oldtime=0;
apm_info ai;
double loadavg[1];
if (use_events) {
pthread_t emthread;
pthread_create(&emthread, NULL, eventMonitor, NULL);
}
while (1) {
activity=0;
if (use_events) {
pthread_mutex_lock(&condition_mutex);
pthread_cond_signal(&condition_cond);
pthread_mutex_unlock(&condition_mutex);
}
if (use_acpi) {
acpi_read(1, &ai);
}
#ifdef HAL
else if (use_simplehal) {
simplehal_read(1, &ai);
}
#endif
else {
apm_read(&ai);
}
if (min_batt != -1 && ai.ac_line_status != 1 &&
ai.battery_percentage < min_batt &&
ai.battery_status != BATTERY_STATUS_ABSENT) {
sleep_battery = 1;
}
if (sleep_battery && ! require_unused_and_battery) {
syslog(LOG_NOTICE, "battery level %d%% is below %d%%; forcing hibernation", ai.battery_percentage, min_batt);
if (system(hibernate_command) != 0)
syslog(LOG_ERR, "%s failed", hibernate_command);
/* This counts as activity; to prevent double sleeps. */
if (debug)
printf("sleepd: activity: just woke up\n");
activity=1;
oldtime=0;
sleep_battery=0;
}
/* Rest is only needed if sleeping on inactivity. */
if (! max_unused && ! ac_max_unused) {
sleep(sleep_time);
continue;
}
if (autoprobe || have_irqs) {
activity=check_irqs(activity, autoprobe);
}
if (use_net) {
activity=check_net(activity);
}
if ((max_loadavg != 0) &&
(getloadavg(loadavg, 1) == 1) &&
(loadavg[0] >= max_loadavg)) {
/* If the load average is too high */
if (debug)
printf("sleepd: activity: load average %f\n", loadavg[0]);
activity=1;
}
if (use_utmp == 1) {
total_unused=check_utmp(total_unused);
}
if (ai.ac_line_status != prev_ac_line_status) {
/* AC plug/unplug counts as activity. */
if (debug)
printf("sleepd: activity: AC status change\n");
activity=1;
}
prev_ac_line_status=ai.ac_line_status;
sleep(sleep_time);
if (use_events) {
pthread_mutex_lock(&activity_mutex);
if (eventData.emactivity == 1) {
if (debug)
printf("sleepd: activity: keyboard/mouse events\n");
activity=1;
}
pthread_mutex_unlock(&activity_mutex);
}
if (activity) {
total_unused = 0;
}
else {
total_unused += sleep_time;
if (ai.ac_line_status == 1) {
/* On wall power. */
if (ac_max_unused > 0) {
sleep_now = total_unused >= ac_max_unused;
}
}
else if (max_unused > 0) {
sleep_now = total_unused >= max_unused;
}
if (sleep_now && ! no_sleep && ! require_unused_and_battery) {
syslog(LOG_NOTICE, "system inactive for %ds; forcing sleep", total_unused);
if (system(sleep_command) != 0)
syslog(LOG_ERR, "%s failed", sleep_command);
total_unused=0;
oldtime=0;
sleep_now=0;
}
else if (sleep_now && ! no_sleep && sleep_battery) {
syslog(LOG_NOTICE, "system inactive for %ds and battery level %d%% is below %d%%; forcing hibernaton",
total_unused, ai.battery_percentage, min_batt);
if (system(hibernate_command) != 0)
syslog(LOG_ERR, "%s failed", hibernate_command);
total_unused=0;
oldtime=0;
sleep_now=0;
sleep_battery=0;
}
}
/*
* Keep track of how long it's been since we were last
* here. If it was much longer than sleep_time, the system
* was probably suspended, or this program was, (or the
* kernel is thrashing :-), so clear idle counter.
*/
nowtime=time(NULL);
/* The 1 is a necessary fudge factor. */
if (oldtime && nowtime - sleep_time > oldtime + 1) {
no_sleep=0; /* reset, since they must have put it to sleep */
writecontrol(no_sleep);
syslog(LOG_NOTICE,
"%i sec sleep; resetting timer",
(int)(nowtime - oldtime));
total_unused=0;
}
oldtime=nowtime;
}
}