gpio.c File Reference

#include <device/mmio.h>
#include <types.h>
#include <gpio.h>

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Functions
void	gpio_configure (gpio_t gpio, uint32_t func, uint32_t pull, uint32_t drive_str, uint32_t enable)
void	gpio_set (gpio_t gpio, int value)
int	gpio_get (gpio_t gpio)
void	gpio_input_pulldown (gpio_t gpio)
void	gpio_input_pullup (gpio_t gpio)
void	gpio_input (gpio_t gpio)
void	gpio_output (gpio_t gpio, int value)
void	gpio_input_irq (gpio_t gpio, enum gpio_irq_type type, uint32_t pull)
int	gpio_irq_status (gpio_t gpio)

Function Documentation

gpio_configure()

void gpio_configure	(	gpio_t	gpio,
		uint32_t	func,
		uint32_t	pull,
		uint32_t	drive_str,
		uint32_t	enable
	)

Definition at line 7 of file gpio.c.

References GPIO_CFG_DRV_BMSK, GPIO_CFG_DRV_SHFT, GPIO_CFG_FUNC_BMSK, GPIO_CFG_FUNC_SHFT, GPIO_CFG_OE_BMSK, GPIO_CFG_OE_SHFT, GPIO_CFG_PULL_BMSK, GPIO_CFG_PULL_SHFT, pull, and write32().

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gpio_get()

int gpio_get

(

gpio_t

gpio

)

Definition at line 27 of file gpio.c.

References GPIO_IO_IN_BMSK, GPIO_IO_IN_SHFT, and read32().

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gpio_input()

void gpio_input

(

gpio_t

gpio

)

Definition at line 47 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_DISABLE, GPIO_FUNC_GPIO, and GPIO_NO_PULL.

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gpio_input_irq()

void gpio_input_irq	(	gpio_t	gpio,
		enum gpio_irq_type	type,
		uint32_t	pull
	)

Definition at line 60 of file gpio.c.

References clrsetbits32, GPIO_2MA, gpio_configure(), GPIO_DISABLE, GPIO_FUNC_GPIO, GPIO_INTR_DECT_CTL_MASK, GPIO_INTR_DECT_CTL_SHIFT, GPIO_INTR_RAW_STATUS_EN_SHIFT, GPIO_INTR_RAW_STATUS_ENABLE, pull, and type.

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gpio_input_pulldown()

void gpio_input_pulldown

(

gpio_t

gpio

)

Definition at line 35 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_DISABLE, GPIO_FUNC_GPIO, and GPIO_PULL_DOWN.

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gpio_input_pullup()

void gpio_input_pullup

(

gpio_t

gpio

)

Definition at line 41 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_DISABLE, GPIO_FUNC_GPIO, and GPIO_PULL_UP.

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gpio_irq_status()

int gpio_irq_status

(

gpio_t

gpio

)

Definition at line 74 of file gpio.c.

References GPIO_INTR_STATUS_DISABLE, GPIO_INTR_STATUS_MASK, read32(), and write32().

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gpio_output()

void gpio_output	(	gpio_t	gpio,
		int	value
	)

Definition at line 53 of file gpio.c.

References GPIO_2MA, gpio_configure(), GPIO_ENABLE, GPIO_FUNC_GPIO, GPIO_NO_PULL, gpio_set(), and value.

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gpio_set()

void gpio_set	(	gpio_t	gpio,
		int	value
	)

Definition at line 21 of file gpio.c.

References GPIO_IO_OUT_SHFT, value, and write32().

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