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Improve battery capacity reporting

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When a status pointer is passed in mfi_dcmd_command does not return an
errno (if the ioctl is successful), so move the test for NO_HW_PRESENT
outside of the error case.  This should fix incorrect reporting for
systems with a dead or no battery.

Additionally, handle error codes other than NO_HW_PRESENT by omitting
the battery capacity display.  LSI's supercap-based parts (CV series)
report their data using the same interface as battery-based parts,
except that they do not include the capacity stats (state of charge,
cumulative charge cycles, etc.)

Reviewd by:   jhb, bz
Tested by:    pluknet@, Garrett Cooper
PR:           bin/160581
MFC after:    1 week
This commit is contained in:
Ed Maste 2011-09-27 14:28:07 +00:00
parent 79a5956c23
commit b08d3049f0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=225798
1 changed files with 15 additions and 10 deletions
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25
usr.sbin/mfiutil/mfi_show.c
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@ -141,7 +141,7 @@ show_battery(int ac, char **av)
struct mfi_bbu_design_info design;
struct mfi_bbu_status stat;
uint8_t status;
int comma, error, fd;
int comma, error, fd, show_capacity;
if (ac != 1) {
warnx("show battery: extra arguments");
@ -157,16 +157,17 @@ show_battery(int ac, char **av)
if (mfi_dcmd_command(fd, MFI_DCMD_BBU_GET_CAPACITY_INFO, &cap,
sizeof(cap), NULL, 0, &status) < 0) {
if (status == MFI_STAT_NO_HW_PRESENT) {
printf("mfi%d: No battery present\n", mfi_unit);
close(fd);
return (0);
}
error = errno;
warn("Failed to get capacity info");
close(fd);
return (error);
}
if (status == MFI_STAT_NO_HW_PRESENT) {
printf("mfi%d: No battery present\n", mfi_unit);
close(fd);
return (0);
}
show_capacity = (status == MFI_STAT_OK);
if (mfi_dcmd_command(fd, MFI_DCMD_BBU_GET_DESIGN_INFO, &design,
sizeof(design), NULL, 0, NULL) < 0) {
@ -192,10 +193,14 @@ show_battery(int ac, char **av)
printf(" Model: %s\n", design.device_name);
printf(" Chemistry: %s\n", design.device_chemistry);
printf(" Design Capacity: %d mAh\n", design.design_capacity);
printf(" Full Charge Capacity: %d mAh\n", cap.full_charge_capacity);
printf(" Current Capacity: %d mAh\n", cap.remaining_capacity);
printf(" Charge Cycles: %d\n", cap.cycle_count);
printf(" Current Charge: %d%%\n", cap.relative_charge);
if (show_capacity) {
printf(" Full Charge Capacity: %d mAh\n",
cap.full_charge_capacity);
printf(" Current Capacity: %d mAh\n",
cap.remaining_capacity);
printf(" Charge Cycles: %d\n", cap.cycle_count);
printf(" Current Charge: %d%%\n", cap.relative_charge);
}
printf(" Design Voltage: %d mV\n", design.design_voltage);
printf(" Current Voltage: %d mV\n", stat.voltage);
printf(" Temperature: %d C\n", stat.temperature);