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Ignore power button and sleep button events for 5 sec.

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Wakeup event is generated by power button and/or sleep button on some
laptops but this also generates SCI interrupt, and shutdown the system
as result.  So this kind of mechanism is introduced so that acpi
driver ignore given events for certain period.
This commit is contained in:
iwasaki 2000-09-20 01:53:11 +00:00
parent 815c8f2861
commit 84b12442f7
2 changed files with 24 additions and 2 deletions
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25
sys/dev/acpi/acpi.c
View File

@ -153,6 +153,7 @@ static void acpi_process_event(acpi_softc_t *sc,
u_int32_t status_0, u_int32_t status_1);
static void acpi_intr(void *data);
static void acpi_enable_events(acpi_softc_t *sc);
static void acpi_clear_ignore_events(void *arg);
/* New-bus dependent code */
static acpi_softc_t *acpi_get_softc(dev_t dev);
@ -834,6 +835,10 @@ acpi_trans_sleeping_state(acpi_softc_t *sc, u_int8_t state)
val_a = ACPI_PM1_WAK_STS;
val_b = ACPI_PM1_WAK_STS;
acpi_io_pm1_status(sc, ACPI_REGISTERS_OUTPUT, &val_a, &val_b);
/* ignore power button and sleep button events for 5 sec. */
sc->ignore_events = ACPI_PM1_PWRBTN_EN | ACPI_PM1_SLPBTN_EN;
timeout(acpi_clear_ignore_events, (caddr_t)sc, hz * 5);
}
acpi_io_pm1_control(sc, ACPI_REGISTERS_INPUT, &val_a, &val_b);
@ -1001,11 +1006,19 @@ acpi_process_event(acpi_softc_t *sc, u_int32_t status_a, u_int32_t status_b,
{
if (status_a & ACPI_PM1_PWRBTN_EN || status_b & ACPI_PM1_PWRBTN_EN) {
acpi_set_sleeping_state(sc, ACPI_S_STATE_S5);
if (sc->ignore_events & ACPI_PM1_PWRBTN_EN) {
ACPI_DEBUGPRINT("PWRBTN event ingnored\n");
} else {
acpi_set_sleeping_state(sc, ACPI_S_STATE_S5);
}
}
if (status_a & ACPI_PM1_SLPBTN_EN || status_b & ACPI_PM1_SLPBTN_EN) {
acpi_set_sleeping_state(sc, ACPI_S_STATE_S1);
if (sc->ignore_events & ACPI_PM1_SLPBTN_EN) {
ACPI_DEBUGPRINT("SLPBTN event ingnored\n");
} else {
acpi_set_sleeping_state(sc, ACPI_S_STATE_S1);
}
}
}
@ -1166,6 +1179,14 @@ acpi_enable_events(acpi_softc_t *sc)
acpi_io_pm_timer(sc, ACPI_REGISTERS_INPUT, &status_a);
}
static void
acpi_clear_ignore_events(void *arg)
{
((acpi_softc_t *)arg)->ignore_events = 0;
ACPI_DEBUGPRINT("ignore events cleared\n");
}
/*
* Character device stuff
*/

1
sys/dev/acpi/acpi.h
View File

@ -68,6 +68,7 @@ typedef struct acpi_softc {
int system_state_initialized;
int broken_wakeuplogic;
int enabled;
u_int32_t ignore_events;
struct acpi_system_state_package system_state_package;
LIST_HEAD(, acpi_powerres_info) acpi_powerres_inflist;
LIST_HEAD(, acpi_powerres_device) acpi_powerres_devlist;