diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/acpica/acpi_thermal.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/sys/dev/acpica/acpi_thermal.c b/sys/dev/acpica/acpi_thermal.c index 32fb551..03d50ce 100644 --- a/sys/dev/acpica/acpi_thermal.c +++ b/sys/dev/acpica/acpi_thermal.c @@ -49,9 +49,10 @@ ACPI_MODULE_NAME("THERMAL") #define TZ_ZEROC 2732 #define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), (((x) - TZ_ZEROC) % 10) -#define TZ_NOTIFY_TEMPERATURE 0x80 -#define TZ_NOTIFY_LEVELS 0x81 -#define TZ_NOTIFY_DEVICES 0x82 +#define TZ_NOTIFY_TEMPERATURE 0x80 /* Temperature changed. */ +#define TZ_NOTIFY_LEVELS 0x81 /* Cooling levels changed. */ +#define TZ_NOTIFY_DEVICES 0x82 /* Device lists changed. */ +#define TZ_NOTIFY_CRITICAL 0xcc /* Fake notify that _CRT/_HOT reached. */ /* Check for temperature changes every 10 seconds by default */ #define TZ_POLLRATE 10 @@ -59,6 +60,9 @@ ACPI_MODULE_NAME("THERMAL") /* Make sure the reported temperature is valid for this number of polls. */ #define TZ_VALIDCHECKS 3 +/* Notify the user we will be shutting down in one more poll cycle. */ +#define TZ_NOTIFYCOUNT (TZ_VALIDCHECKS - 1) + /* ACPI spec defines this */ #define TZ_NUMLEVELS 10 struct acpi_tz_zone { @@ -481,14 +485,18 @@ acpi_tz_monitor(void *Context) * for one poll cycle. It is suspected this is due to the embedded * controller timing out. A typical value is 138C for one cycle on * a system that is otherwise 65C. + * + * If we're almost at that threshold, notify the user through devd(8). */ if ((newflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT)) != 0) { - if (++sc->tz_validchecks == TZ_VALIDCHECKS) { + sc->tz_validchecks++; + if (sc->tz_validchecks == TZ_VALIDCHECKS) { device_printf(sc->tz_dev, "WARNING - current temperature (%d.%dC) exceeds safe limits\n", TZ_KELVTOC(sc->tz_temperature)); shutdown_nice(RB_POWEROFF); - } + } else if (sc->tz_validchecks == TZ_NOTIFYCOUNT) + acpi_UserNotify("Thermal", sc->tz_handle, TZ_NOTIFY_CRITICAL); } else { sc->tz_validchecks = 0; } |
