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#include <stdio.h>
#include <sys/ioctl.h>
#include "apm.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdint.h>
#include "sonypi.h"
signed int spicfd = -1;
int sonypi_supported(void)
{
spicfd = open("/dev/sonypi", O_RDWR);
if (spicfd == -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)
{
uint8_t batflags;
uint16_t 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;
}
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