void
apm_thread(void *v)
{
struct pxa2x0_apm_softc *sc = v;
u_int type;
for (;;) {
APM_LOCK(sc);
while (1) {
if (apm_get_event(sc, &type) != 0)
break;
if (apm_handle_event(sc, type) != 0)
break;
}
if (apm_suspends || apm_userstandbys /* || apm_battlow*/) {
apm_suspend(sc);
apm_resume(sc);
}
apm_battlow = apm_suspends = apm_userstandbys = 0;
APM_UNLOCK(sc);
tsleep(&lbolt, PWAIT, "apmev", 0);
}
}
int
apmclose(dev_t dev, int flag, int mode,
struct lwp *l)
{
struct apm_softc *sc = device_lookup_private(&apm_cd, APMUNIT(dev));
int ctl = APM(dev);
DPRINTF(APMDEBUG_DEVICE,
("apmclose: pid %d flag %x mode %x\n", l->l_proc->p_pid, flag, mode));
APM_LOCK(sc);
switch (ctl) {
case APM_CTL:
sc->sc_flags &= ~SCFLAG_OWRITE;
break;
case APM_NORMAL:
sc->sc_flags &= ~SCFLAG_OREAD;
break;
}
if ((sc->sc_flags & SCFLAG_OPEN) == 0) {
sc->sc_event_count = 0;
sc->sc_event_ptr = 0;
}
APM_UNLOCK(sc);
return 0;
}
static void
filt_apmrdetach(struct knote *kn)
{
struct apm_softc *sc = kn->kn_hook;
APM_LOCK(sc);
SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext);
APM_UNLOCK(sc);
}
void
apm_thread(void *arg)
{
struct apm_softc *apmsc = arg;
/*
* Loop forever, doing a periodic check for APM events.
*/
for (;;) {
APM_LOCK(apmsc);
apm_periodic_check(apmsc);
APM_UNLOCK(apmsc);
(void) tsleep(apmsc, PWAIT, "apmev", (8 * hz) / 7);
}
}
int
apmpoll(dev_t dev, int events, struct lwp *l)
{
struct apm_softc *sc = device_lookup_private(&apm_cd, APMUNIT(dev));
int revents = 0;
APM_LOCK(sc);
if (events & (POLLIN | POLLRDNORM)) {
if (sc->sc_event_count)
revents |= events & (POLLIN | POLLRDNORM);
else
selrecord(l, &sc->sc_rsel);
}
APM_UNLOCK(sc);
return (revents);
}
int
apmopen(dev_t dev, int flag, int mode, struct lwp *l)
{
int ctl = APM(dev);
int error = 0;
struct apm_softc *sc;
sc = device_lookup_private(&apm_cd, APMUNIT(dev));
if (!sc)
return ENXIO;
if (!apm_inited)
return ENXIO;
DPRINTF(APMDEBUG_DEVICE,
("apmopen: pid %d flag %x mode %x\n", l->l_proc->p_pid, flag, mode));
APM_LOCK(sc);
switch (ctl) {
case APM_CTL:
if (!(flag & FWRITE)) {
error = EINVAL;
break;
}
if (sc->sc_flags & SCFLAG_OWRITE) {
error = EBUSY;
break;
}
sc->sc_flags |= SCFLAG_OWRITE;
break;
case APM_NORMAL:
if (!(flag & FREAD) || (flag & FWRITE)) {
error = EINVAL;
break;
}
sc->sc_flags |= SCFLAG_OREAD;
break;
default:
error = ENXIO;
break;
}
APM_UNLOCK(sc);
return (error);
}
int
apmkqfilter(dev_t dev, struct knote *kn)
{
struct apm_softc *sc = device_lookup_private(&apm_cd, APMUNIT(dev));
struct klist *klist;
switch (kn->kn_filter) {
case EVFILT_READ:
klist = &sc->sc_rsel.sel_klist;
kn->kn_fop = &apmread_filtops;
break;
default:
return (EINVAL);
}
kn->kn_hook = sc;
APM_LOCK(sc);
SLIST_INSERT_HEAD(klist, kn, kn_selnext);
APM_UNLOCK(sc);
return (0);
}
int
apmioctl(dev_t dev, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct apm_softc *sc = device_lookup_private(&apm_cd, APMUNIT(dev));
struct apm_power_info *powerp;
struct apm_event_info *evp;
#if 0
struct apm_ctl *actl;
#endif
int i, error = 0;
int batt_flags;
struct apm_ctl *actl;
APM_LOCK(sc);
switch (cmd) {
case APM_IOC_STANDBY:
if (!apm_do_standby) {
error = EOPNOTSUPP;
break;
}
if ((flag & FWRITE) == 0) {
error = EBADF;
break;
}
apm_userstandbys++;
break;
case APM_IOC_DEV_CTL:
actl = (struct apm_ctl *)data;
if ((flag & FWRITE) == 0) {
error = EBADF;
break;
}
#if 0
apm_get_powstate(actl->dev); /* XXX */
#endif
error = (*sc->sc_ops->aa_set_powstate)(sc->sc_cookie, actl->dev,
actl->mode);
apm_suspends++;
break;
case APM_IOC_SUSPEND:
if ((flag & FWRITE) == 0) {
error = EBADF;
break;
}
apm_suspends++;
break;
case APM_IOC_NEXTEVENT:
if (!sc->sc_event_count)
error = EAGAIN;
else {
evp = (struct apm_event_info *)data;
i = sc->sc_event_ptr + APM_NEVENTS - sc->sc_event_count;
i %= APM_NEVENTS;
*evp = sc->sc_event_list[i];
sc->sc_event_count--;
}
break;
case OAPM_IOC_GETPOWER:
case APM_IOC_GETPOWER:
powerp = (struct apm_power_info *)data;
if ((error = (*sc->sc_ops->aa_get_powstat)(sc->sc_cookie, 0,
powerp)) != 0) {
apm_perror("ioctl get power status", error);
error = EIO;
break;
}
switch (apm_minver) {
case 0:
break;
case 1:
default:
batt_flags = powerp->battery_flags;
powerp->battery_state = APM_BATT_UNKNOWN;
if (batt_flags & APM_BATT_FLAG_HIGH)
powerp->battery_state = APM_BATT_HIGH;
else if (batt_flags & APM_BATT_FLAG_LOW)
powerp->battery_state = APM_BATT_LOW;
else if (batt_flags & APM_BATT_FLAG_CRITICAL)
powerp->battery_state = APM_BATT_CRITICAL;
else if (batt_flags & APM_BATT_FLAG_CHARGING)
powerp->battery_state = APM_BATT_CHARGING;
else if (batt_flags & APM_BATT_FLAG_NO_SYSTEM_BATTERY)
powerp->battery_state = APM_BATT_ABSENT;
break;
}
break;
default:
error = ENOTTY;
}
APM_UNLOCK(sc);
return (error);
}