static int
s3c2410_bus_ipend(struct uart_softc *sc)
{
uint32_t ufstat, txmask, rxmask;
uintptr_t irq;
int ipend = 0;
uart_lock(sc->sc_hwmtx);
ufstat = bus_space_read_4(sc->sc_bas.bst, sc->sc_bas.bsh, SSCOM_UFSTAT);
uart_unlock(sc->sc_hwmtx);
txmask = rxmask = 0;
switch (s3c2xx0_softc->sc_cpu) {
case CPU_S3C2410:
txmask = UFSTAT_TXCOUNT;
rxmask = UFSTAT_RXCOUNT;
break;
case CPU_S3C2440:
txmask = S3C2440_UFSTAT_TXCOUNT;
rxmask = S3C2440_UFSTAT_RXCOUNT;
break;
}
if ((ufstat & txmask) == 0) {
if (sc->sc_txbusy != 0)
ipend |= SER_INT_TXIDLE;
irq = rman_get_start(sc->sc_ires);
arm_mask_irq(get_sub_irq(irq, TX_OFF));
}
if ((ufstat & rxmask) > 0) {
ipend |= SER_INT_RXREADY;
}
return (ipend);
}
static void
s3c2410_bus_grab(struct uart_softc *sc)
{
uintptr_t irq;
irq = rman_get_start(sc->sc_ires);
arm_mask_irq(get_sub_irq(irq, RX_OFF));
}
/**
* omap_teardown_intr
*
* RETURNS:
* 0 on success
*/
int
omap_teardown_intr(device_t dev, device_t child, struct resource *res,
void *cookie)
{
unsigned int i;
/* Mask (disable) all the interrupts in the range ... will probably be only one */
for (i = rman_get_start(res); (i < NIRQ) && (i <= rman_get_end(res)); i++) {
arm_mask_irq(i);
}
return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie));
}
int
arm_remove_irqhandler(int irq, void *cookie)
{
struct intr_event *event;
int error;
event = intr_events[irq];
arm_mask_irq(irq);
error = intr_event_remove_handler(cookie);
if (!CK_SLIST_EMPTY(&event->ie_handlers))
arm_unmask_irq(irq);
return (error);
}
void
arm_handler_execute(struct trapframe *frame, int irqnb)
{
struct intr_event *event;
int i;
PCPU_INC(cnt.v_intr);
i = -1;
while ((i = arm_get_next_irq(i)) != -1) {
intrcnt[i]++;
event = intr_events[i];
if (intr_event_handle(event, frame) != 0) {
/* XXX: Log stray IRQs */
arm_mask_irq(i);
}
}
}
void
intr_irq_handler(struct trapframe *frame)
{
struct intr_event *event;
int i;
VM_CNT_INC(v_intr);
i = -1;
while ((i = arm_get_next_irq(i)) != -1) {
intrcnt[i]++;
event = intr_events[i];
if (intr_event_handle(event, frame) != 0) {
/* XXX: Log stray IRQs */
arm_mask_irq(i);
}
}
#ifdef HWPMC_HOOKS
if (pmc_hook && (PCPU_GET(curthread)->td_pflags & TDP_CALLCHAIN))
pmc_hook(PCPU_GET(curthread), PMC_FN_USER_CALLCHAIN, frame);
#endif
}
