GPIO register base addresses

Collaboration diagram for GPIO register base addresses:

Macros
#define	GPIO(port)   (GPIO_BASE + (0x040 * (port)))
#define	GPIO0   (GPIO_BASE + 0x000)
#define	GPIO1   (GPIO_BASE + 0x040)
#define	GPIO2   (GPIO_BASE + 0x080)
#define	GPIO3   (GPIO_BASE + 0x0C0)
#define	GPIO4   (GPIO_BASE + 0x100)
#define	GPIO_OFFSET(gpio)   (0x1 << ((gpio) % 32))
#define	GPIO_PDOR(gpio_base)   MMIO32((gpio_base) + 0x00)
#define	GPIO_PSOR(gpio_base)   MMIO32((gpio_base) + 0x04)
#define	GPIO_PCOR(gpio_base)   MMIO32((gpio_base) + 0x08)
#define	GPIO_PTOR(gpio_base)   MMIO32((gpio_base) + 0x0C)
#define	GPIO_PDIR(gpio_base)   MMIO32((gpio_base) + 0x10)

Functions
void	gpio_set (uint32_t gpio)
	Set GPIO. More...
void	gpio_clear (uint32_t gpio)
	Set GPIO. More...
bool	gpio_get (uint32_t gpio)
	Get GPIOs logic state. More...
void	gpio_toggle (uint32_t gpio)
	Toggles GPIO. More...
uint32_t	gpio_port_read (uint32_t gpioport)
	Read a whole GPIO Port. More...
void	gpio_port_write (uint32_t gpioport, uint32_t data)
	Write a whole GPIO Port. More...

Detailed Description

Macro Definition Documentation

GPIO

#define GPIO

(

port

)

(GPIO_BASE + (0x040 * (port)))

Definition at line 48 of file gpio.h.

GPIO0

#define GPIO0   (GPIO_BASE + 0x000)

Definition at line 49 of file gpio.h.

GPIO1

#define GPIO1   (GPIO_BASE + 0x040)

Definition at line 50 of file gpio.h.

GPIO2

#define GPIO2   (GPIO_BASE + 0x080)

Definition at line 51 of file gpio.h.

GPIO3

#define GPIO3   (GPIO_BASE + 0x0C0)

Definition at line 52 of file gpio.h.

GPIO4

#define GPIO4   (GPIO_BASE + 0x100)

Definition at line 53 of file gpio.h.

GPIO_OFFSET

#define GPIO_OFFSET

(

gpio

)

(0x1 << ((gpio) % 32))

Definition at line 55 of file gpio.h.

GPIO_PCOR

#define GPIO_PCOR

(

gpio_base

)

MMIO32((gpio_base) + 0x08)

Definition at line 61 of file gpio.h.

GPIO_PDIR

#define GPIO_PDIR

(

gpio_base

)

MMIO32((gpio_base) + 0x10)

Definition at line 63 of file gpio.h.

GPIO_PDOR

#define GPIO_PDOR

(

gpio_base

)

MMIO32((gpio_base) + 0x00)

Definition at line 59 of file gpio.h.

GPIO_PSOR

#define GPIO_PSOR

(

gpio_base

)

MMIO32((gpio_base) + 0x04)

Definition at line 60 of file gpio.h.

GPIO_PTOR

#define GPIO_PTOR

(

gpio_base

)

MMIO32((gpio_base) + 0x0C)

Definition at line 62 of file gpio.h.

Function Documentation

gpio_clear()

void gpio_clear

(

uint32_t

gpio

)

Set GPIO.

Clears GPIO by GPIO number according to MUX list

Parameters

[in]

gpio

unsigned 32 bit. GPIO number

Definition at line 65 of file gpio.c.

References GPIO, GPIO_OFFSET, and GPIO_PCOR.

gpio_get()

bool gpio_get

(

uint32_t

gpio

)

Get GPIOs logic state.

Get logic level of GPIO given by GPIO number according to MUX list. Reading a GPIO value is possible even if the port is not muxed for GPIO.

Parameters

[in]

gpio

unsigned 32 bit. GPIO number

Returns

the logic state of the given GPIO.

Definition at line 81 of file gpio.c.

References GPIO, GPIO_OFFSET, and GPIO_PDIR.

gpio_port_read()

uint32_t gpio_port_read

(

uint32_t

gpioport

)

Read a whole GPIO Port.

Gets all 32 GPIOs of a Port.

Parameters

[in]

gpioport

unsigned 32 bit. GPIO port GPIO register base addresses

Returns

the logic states of the given GPIO port.

Definition at line 110 of file gpio.c.

References GPIO_PDIR.

gpio_port_write()

void gpio_port_write	(	uint32_t	gpioport,
		uint32_t	data
	)

Write a whole GPIO Port.

Sets all 32 GPIOs of a Port.

Parameters

[in]	gpioport	unsigned 32 bit. GPIO port GPIO register base addresses
[in]	gpio	unsigned 32 bit. 1 for a logic 1 driven at port, 0 for a logic 0 driven at port.

Definition at line 125 of file gpio.c.

References GPIO_PDOR.

gpio_set()

void gpio_set

(

uint32_t

gpio

)

Set GPIO.

Set GPIO by GPIO number according to MUX list

Parameters

[in]

gpio

unsigned 32 bit. GPIO number

Definition at line 51 of file gpio.c.

References GPIO, GPIO_OFFSET, and GPIO_PSOR.

gpio_toggle()

void gpio_toggle

(

uint32_t

gpio

)

Toggles GPIO.

Toggles GPIO by GPIO number according to MUX list

Parameters

[in]

gpio

unsigned 32 bit. GPIO number

Definition at line 95 of file gpio.c.

References GPIO, GPIO_OFFSET, and GPIO_PTOR.