C++ (Cpp) to_at91_gpio_chipの例

コード例 #1

static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val)
{
	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
	void __iomem *pio = at91_gpio->regbase;
	unsigned mask = 1 << offset;

	__raw_writel(mask, pio + (val ? PIO_SODR : PIO_CODR));
}

コード例 #2

ファイル: gpio.c プロジェクト: 01org/KVMGT-kernel

/* gpiolib support */
static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset)
{
	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
	void __iomem *pio = at91_gpio->regbase;
	unsigned mask = 1 << offset;

	__raw_writel(mask, pio + PIO_PER);
	return 0;
}

コード例 #3

static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset)
{
	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
	void __iomem *pio = at91_gpio->regbase;
	unsigned mask = 1 << offset;
	u32 pdsr;

	pdsr = __raw_readl(pio + PIO_PDSR);
	return (pdsr & mask) != 0;
}

コード例 #4

static int at91_gpiolib_direction_output(struct gpio_chip *chip,
					 unsigned offset, int val)
{
	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
	void __iomem *pio = at91_gpio->regbase;
	unsigned mask = 1 << offset;

	__raw_writel(mask, pio + (val ? PIO_SODR : PIO_CODR));
	__raw_writel(mask, pio + PIO_OER);
	return 0;
}

コード例 #5

ファイル: gpio.c プロジェクト: 01org/KVMGT-kernel

static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset)
{
	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
	int virq;

	if (offset < chip->ngpio)
		virq = irq_create_mapping(at91_gpio->domain, offset);
	else
		virq = -ENXIO;

	dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n",
				chip->label, offset + chip->base, virq);
	return virq;
}