C++ (Cpp) ssb_chipco_gpio_intmask Examples

Example #1

File: driver_gpio.c Project: 020gzh/linux

static void ssb_gpio_irq_chipco_mask(struct irq_data *d)
{
	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
	int gpio = irqd_to_hwirq(d);

	ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), 0);
}

Example #2

File: driver_gpio.c Project: 020gzh/linux

static void ssb_gpio_irq_chipco_unmask(struct irq_data *d)
{
	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
	int gpio = irqd_to_hwirq(d);
	u32 val = ssb_chipco_gpio_in(&bus->chipco, BIT(gpio));

	ssb_chipco_gpio_polarity(&bus->chipco, BIT(gpio), val);
	ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), BIT(gpio));
}

Example #3

File: embedded.c Project: CSCLOG/beaglebone

u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value)
{
	unsigned long flags;
	u32 res = 0;

	spin_lock_irqsave(&bus->gpio_lock, flags);
	if (ssb_chipco_available(&bus->chipco))
		res = ssb_chipco_gpio_intmask(&bus->chipco, mask, value);
	else if (ssb_extif_available(&bus->extif))
		res = ssb_extif_gpio_intmask(&bus->extif, mask, value);
	else
		SSB_WARN_ON(1);
	spin_unlock_irqrestore(&bus->gpio_lock, flags);

	return res;
}

Example #4

File: driver_gpio.c Project: 020gzh/linux

static int ssb_gpio_irq_chipco_domain_init(struct ssb_bus *bus)
{
	struct ssb_chipcommon *chipco = &bus->chipco;
	struct gpio_chip *chip = &bus->gpio;
	int gpio, hwirq, err;

	if (bus->bustype != SSB_BUSTYPE_SSB)
		return 0;

	bus->irq_domain = irq_domain_add_linear(NULL, chip->ngpio,
						&irq_domain_simple_ops, chipco);
	if (!bus->irq_domain) {
		err = -ENODEV;
		goto err_irq_domain;
	}
	for (gpio = 0; gpio < chip->ngpio; gpio++) {
		int irq = irq_create_mapping(bus->irq_domain, gpio);

		irq_set_chip_data(irq, bus);
		irq_set_chip_and_handler(irq, &ssb_gpio_irq_chipco_chip,
					 handle_simple_irq);
	}

	hwirq = ssb_mips_irq(bus->chipco.dev) + 2;
	err = request_irq(hwirq, ssb_gpio_irq_chipco_handler, IRQF_SHARED,
			  "gpio", bus);
	if (err)
		goto err_req_irq;

	ssb_chipco_gpio_intmask(&bus->chipco, ~0, 0);
	chipco_set32(chipco, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO);

	return 0;

err_req_irq:
	for (gpio = 0; gpio < chip->ngpio; gpio++) {
		int irq = irq_find_mapping(bus->irq_domain, gpio);

		irq_dispose_mapping(irq);
	}
	irq_domain_remove(bus->irq_domain);
err_irq_domain:
	return err;
}