C++ (Cpp) ICU_IRQ_MASK_REG示例

示例#1

文件： obio.c 项目： JabirTech/Source

static int
obio_teardown_intr(device_t dev, device_t child, struct resource *ires,
    void *cookie)
{
	struct obio_softc *sc = device_get_softc(dev);
	int irq, result;
	uint32_t mask_register, mask, ip_bit;

	irq = rman_get_start(ires);
	if (irq >= NIRQS)
		panic("%s: bad irq %d", __func__, irq);

	if (sc->sc_eventstab[irq] == NULL)
		panic("Trying to teardown unoccupied IRQ");

	/* mask IRQ */
	mask_register = ICU_IRQ_MASK_REG(irq);
	ip_bit = ICU_IP_BIT(irq);

	mask = ICU_REG_READ(mask_register);
	ICU_REG_WRITE(mask_register, mask | ip_bit);

	result = intr_event_remove_handler(cookie);
	if (!result)
		sc->sc_eventstab[irq] = NULL;

	return (result);
}

示例#2

文件： obio.c 项目： JabirTech/Source

static void 
obio_unmask_irq(void *arg)
{
	unsigned int irq = (unsigned int)arg;
	int ip_bit, mask, mask_register;

	/* unmask IRQ */
	mask_register = ICU_IRQ_MASK_REG(irq);
	ip_bit = ICU_IP_BIT(irq);

	mask = ICU_REG_READ(mask_register);
	ICU_REG_WRITE(mask_register, mask & ~ip_bit);
}

示例#3

static void 
obio_mask_irq(void *arg)
{
  /* XXX need to write */
#if 0
	unsigned int irq = (unsigned int)arg;
	int ip_bit, mask, mask_register;

	/* mask IRQ */
	mask_register = ICU_IRQ_MASK_REG(irq);
	ip_bit = ICU_IP_BIT(irq);

	mask = ICU_REG_READ(mask_register);
	ICU_REG_WRITE(mask_register, mask | ip_bit);
#endif
}

示例#4

文件： obio.c 项目： JabirTech/Source

static int
obio_setup_intr(device_t dev, device_t child, struct resource *ires,
		int flags, driver_filter_t *filt, driver_intr_t *handler,
		void *arg, void **cookiep)
{
	struct obio_softc *sc = device_get_softc(dev);
	struct intr_event *event;
	int irq, ip_bit, error, mask, mask_register;

	irq = rman_get_start(ires);

	if (irq >= NIRQS)
		panic("%s: bad irq %d", __func__, irq);

	event = sc->sc_eventstab[irq];
	if (event == NULL) {
		error = intr_event_create(&event, (void *)irq, 0, irq, 
		    obio_mask_irq, obio_unmask_irq,
		    NULL, NULL,
		    "obio intr%d:", irq);

		sc->sc_eventstab[irq] = event;
	}

	intr_event_add_handler(event, device_get_nameunit(child), filt,
	    handler, arg, intr_priority(flags), flags, cookiep);

	/* unmask IRQ */
	mask_register = ICU_IRQ_MASK_REG(irq);
	ip_bit = ICU_IP_BIT(irq);

	mask = ICU_REG_READ(mask_register);
	ICU_REG_WRITE(mask_register, mask & ~ip_bit);

	return (0);
}