75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
#include <stdio.h>
|
|
#include <sys/ioctl.h>
|
|
#include "apm.h"
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "sonypi.h"
|
|
|
|
signed int spicfd = -1;
|
|
|
|
int sonypi_supported (void) {
|
|
if ((spicfd = open("/dev/sonypi", O_RDWR)) == -1)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
inline int sonypi_ioctl(int ioctlno, void *param) {
|
|
if (ioctl(spicfd, ioctlno, param) < 0)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
/* Read battery info from sonypi device and shove it into an apm_info
|
|
* struct. */
|
|
int sonypi_read (apm_info *info) {
|
|
__u8 batflags;
|
|
__u16 cap, rem;
|
|
int havebatt = 0;
|
|
|
|
info->using_minutes = info->battery_flags = 0;
|
|
|
|
if (! sonypi_ioctl(SONYPI_IOCGBATFLAGS, &batflags)) {
|
|
return 1;
|
|
}
|
|
|
|
info->ac_line_status = (batflags & SONYPI_BFLAGS_AC) != 0;
|
|
if (batflags & SONYPI_BFLAGS_B1) {
|
|
if (! sonypi_ioctl(SONYPI_IOCGBAT1CAP, &cap))
|
|
return 1;
|
|
if (! sonypi_ioctl(SONYPI_IOCGBAT1REM, &rem))
|
|
return 1;
|
|
havebatt = 1;
|
|
}
|
|
else if (batflags & SONYPI_BFLAGS_B2) {
|
|
/* Not quite right, if there is a second battery I should
|
|
* probably merge the two somehow.. */
|
|
if (! sonypi_ioctl(SONYPI_IOCGBAT2CAP, &cap))
|
|
return 1;
|
|
if (! sonypi_ioctl(SONYPI_IOCGBAT2REM, &rem))
|
|
return 1;
|
|
havebatt = 1;
|
|
}
|
|
else {
|
|
info->battery_percentage = 0;
|
|
info->battery_status = BATTERY_STATUS_ABSENT;
|
|
}
|
|
|
|
if (havebatt) {
|
|
info->battery_percentage = 100 * rem / cap;
|
|
/* Guess at whether the battery is charging. */
|
|
if (info->battery_percentage < 99 && info->ac_line_status == 1) {
|
|
info->battery_flags = info->battery_flags | BATTERY_FLAGS_CHARGING;
|
|
info->battery_status = BATTERY_STATUS_CHARGING;
|
|
}
|
|
}
|
|
|
|
/* Sadly, there is no way to estimate this. */
|
|
info->battery_time = 0;
|
|
|
|
return 0;
|
|
}
|