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Some laptops report the "design-capacity" instead of the "real-capacity"

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when the battery is fully charged. That breaks some of the arithmetic in
calculating the remaining capacity (ends up with more than 100%).
This commit makes sure the max is 100.

Approved by:	njl
This commit is contained in:
marks 2004-07-14 19:31:31 +00:00
parent 7b09b25ecb
commit 7e3605cbad
1 changed files with 9 additions and 0 deletions
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9
sys/dev/acpica/acpi_cmbat.c
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@ -519,6 +519,15 @@ acpi_cmbat_get_total_battinfo(struct acpi_battinfo *battinfo)
valid_units++;
bat[i]->cap = 100 * bat[i]->bst.cap / bat[i]->bif.lfcap;
/*
* Some laptops report the "design-capacity" instead of the
* "real-capacity" when the battery is fully charged.
* That breaks the above arithmetic as it needs to be 100% maximum.
*/
if (bat[i]->cap > 100)
bat[i]->cap = 100;
batt_stat |= bat[i]->bst.state;
if (bat[i]->bst.rate > 0) {