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Add suspend/resume method to syscons. This switch the mode

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(text <-> graphics) by changing current vty during ACPI
sleep/wakeup (maybe APM also).
This commit is contained in:
Mitsuru IWASAKI 2002-08-25 18:35:44 +00:00
parent 78d1394010
commit 9c4d34df76
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=102418
1 changed files with 35 additions and 0 deletions
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35
sys/isa/syscons_isa.c
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@ -88,6 +88,39 @@ scattach(device_t dev)
return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
}
static int sc_cur_scr;
static int
scsuspend(device_t dev)
{
int retry = 10;
static int dummy;
sc_softc_t *sc;
sc = &main_softc;
sc_cur_scr = sc->cur_scp->index;
do {
sc_switch_scr(sc, 0);
if (!sc->switch_in_progress) {
break;
}
tsleep(&dummy, 0, "scsuspend", 100);
} while (retry--);
return (0);
}
static int
scresume(device_t dev)
{
sc_softc_t *sc;
sc = &main_softc;
sc_switch_scr(sc, sc_cur_scr);
return (0);
}
int
sc_max_unit(void)
{
@ -230,6 +263,8 @@ static device_method_t sc_methods[] = {
DEVMETHOD(device_identify, scidentify),
DEVMETHOD(device_probe, scprobe),
DEVMETHOD(device_attach, scattach),
DEVMETHOD(device_suspend, scsuspend),
DEVMETHOD(device_resume, scresume),
{ 0, 0 }
};