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When ACPI reports current battery consumption rate in mAmps, print it also

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in mWatts. Values in mAmps are not always suitable, because they depend on
battery voltage, which depends on battery type and charge level.
This commit is contained in:
Alexander Motin 2010-08-24 18:07:59 +00:00
parent 694a0a8717
commit 9c1af42179
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=211763
1 changed files with 21 additions and 16 deletions
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37
usr.sbin/acpi/acpiconf/acpiconf.c
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@ -86,7 +86,8 @@ acpi_battinfo(int num)
{
union acpi_battery_ioctl_arg battio;
const char *pwr_units;
int hours, min;
int hours, min, amp;
uint32_t volt;
if (num < 0 || num > 64)
err(EX_USAGE, "invalid battery %d", num);
@ -95,11 +96,8 @@ acpi_battinfo(int num)
battio.unit = num;
if (ioctl(acpifd, ACPIIO_BATT_GET_BIF, &battio) == -1)
err(EX_IOERR, "get battery info (%d) failed", num);
if (battio.bif.units == 0)
pwr_units = "mW";
else
pwr_units = "mA";
amp = battio.bif.units;
pwr_units = amp ? "mA" : "mW";
if (battio.bif.dcap == UNKNOWN_CAP)
printf("Design capacity:\tunknown\n");
else
@ -125,6 +123,14 @@ acpi_battinfo(int num)
printf("Type:\t\t\t%s\n", battio.bif.type);
printf("OEM info:\t\t%s\n", battio.bif.oeminfo);
/* Fetch battery voltage information. */
volt = UNKNOWN_VOLTAGE;
battio.unit = num;
if (ioctl(acpifd, ACPIIO_BATT_GET_BST, &battio) == -1)
err(EX_IOERR, "get battery status (%d) failed", num);
if (battio.bst.state != ACPI_BATT_STAT_NOT_PRESENT)
volt = battio.bst.volt;
/* Print current battery state information. */
battio.unit = num;
if (ioctl(acpifd, ACPIIO_BATT_GET_BATTINFO, &battio) == -1)
@ -154,22 +160,21 @@ acpi_battinfo(int num)
}
if (battio.battinfo.rate == -1)
printf("Present rate:\t\tunknown\n");
else
else if (amp && volt != UNKNOWN_VOLTAGE) {
printf("Present rate:\t\t%d mA (%d mW)\n",
battio.battinfo.rate,
battio.battinfo.rate * volt / 1000);
} else
printf("Present rate:\t\t%d %s\n",
battio.battinfo.rate, pwr_units);
} else
printf("State:\t\t\tnot present\n");
/* Print battery voltage information. */
battio.unit = num;
if (ioctl(acpifd, ACPIIO_BATT_GET_BST, &battio) == -1)
err(EX_IOERR, "get battery status (%d) failed", num);
if (battio.bst.state != ACPI_BATT_STAT_NOT_PRESENT) {
if (battio.bst.volt == UNKNOWN_VOLTAGE)
printf("Voltage:\t\tunknown\n");
else
printf("Voltage:\t\t%d mV\n", battio.bst.volt);
}
if (volt == UNKNOWN_VOLTAGE)
printf("Present voltage:\tunknown\n");
else
printf("Present voltage:\t%d mV\n", volt);
return (0);
}