Memory-mapped register I/O APIs

Functions
static void	sys_write8 (uint8_t data, mm_reg_t addr)
	Write a byte to a memory mapped register.
static uint8_t	sys_read8 (mm_reg_t addr)
	Read a byte from a memory mapped register.
static void	sys_write16 (uint16_t data, mm_reg_t addr)
	Write 16 bits to a memory mapped register.
static uint16_t	sys_read16 (mm_reg_t addr)
	Read 16 bits from a memory mapped register.
static void	sys_write32 (uint32_t data, mm_reg_t addr)
	Write 32 bits to a memory mapped register.
static uint32_t	sys_read32 (mm_reg_t addr)
	Read 32 bits from a memory mapped register.
static void	sys_write64 (uint64_t data, mm_reg_t addr)
	Write 64 bits to a memory mapped register.
static uint64_t	sys_read64 (mm_reg_t addr)
	Read 64 bits from a memory mapped register.

Detailed Description

Function Documentation

sys_read16()

uint16_t sys_read16 ( mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Read 16 bits from a memory mapped register.

This function reads 16 bits from the given memory mapped register.

Parameters

addr	the memory mapped register address from where to read the 16 bits

Returns

the 16 bits read

sys_read32()

uint32_t sys_read32 ( mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Read 32 bits from a memory mapped register.

This function reads 32 bits from the given memory mapped register.

Parameters

addr	the memory mapped register address from where to read the 32 bits

Returns

the 32 bits read

sys_read64()

uint64_t sys_read64 ( mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Read 64 bits from a memory mapped register.

This function reads 64 bits from the given memory mapped register.

Parameters

addr	the memory mapped register address from where to read the 64 bits

Returns

the 64 bits read

sys_read8()

uint8_t sys_read8 ( mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Read a byte from a memory mapped register.

This function reads a byte from the given memory mapped register.

Parameters

addr	the memory mapped register address from where to read the byte

Returns

the byte read

sys_write16()

void sys_write16 ( uint16_t data, mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Write 16 bits to a memory mapped register.

This function writes 16 bits to the given memory mapped register.

Parameters

data	the 16 bits to write
addr	the memory mapped register address where to write the 16 bits

sys_write32()

void sys_write32 ( uint32_t data, mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Write 32 bits to a memory mapped register.

This function writes 32 bits to the given memory mapped register.

Parameters

data	the 32 bits to write
addr	the memory mapped register address where to write the 32 bits

sys_write64()

void sys_write64 ( uint64_t data, mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Write 64 bits to a memory mapped register.

This function writes 64 bits to the given memory mapped register.

Parameters

data	the 64 bits to write
addr	the memory mapped register address where to write the 64 bits

sys_write8()

void sys_write8 ( uint8_t data, mm_reg_t addr )

inlinestatic

#include <zephyr/sys/sys_io.h>

Write a byte to a memory mapped register.

This function writes a byte to the given memory mapped register.

Parameters

data	the byte to write
addr	the memory mapped register address where to write the byte