e2p_emulation.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "e2p_emulation.h"

Functions
static uint32_t	flash_read (uint8_t *buf, uint32_t addr, uint32_t size)
	Flash read function for eeprom emulation. More...
static uint32_t	flash_write (uint8_t *buf, uint32_t addr, uint32_t size)
	Flash write function for eeprom emulation. More...
static void	flash_erase (uint32_t start_addr, uint32_t size)
	Flash erase function for eeprom emulation. More...
static uint32_t	eeprom_enter_critical (void)
	Enter critical section by disabling global interrupts. More...
static void	eeprom_exit_critical (uint32_t level)
	Exit critical section by restoring global interrupts. More...
hpm_stat_t	e2p_emulation_xpi_register_param (hpm_eeprom_device_t *device)
	Register eeprom xpi emulation device parameter to device structure. More...
hpm_stat_t	e2p_emulation_xpi_init (hpm_eeprom_device_t *device)
	Initialize eeprom xpi emulation device. More...
hpm_stat_t	e2p_emulation_xpi_read (hpm_eeprom_device_t *device, uint32_t data_addr, uint32_t len, uint8_t *data)
	Read data from eeprom xpi emulation device. More...
hpm_stat_t	e2p_emulation_xpi_write (hpm_eeprom_device_t *device, uint32_t data_addr, uint32_t len, uint8_t *data)
	Write data to eeprom xpi emulation device. More...

Variables
e2p_t	hpm_e2p_emulation
static e2p_device_ops_t	hpm_e2p_xpi_device_ops
	eeprom xpi emulation device operations structure More...

Function Documentation

e2p_emulation_xpi_init()

hpm_stat_t e2p_emulation_xpi_init

(

hpm_eeprom_device_t *

device

)

Initialize eeprom xpi emulation device.

Parameters

[in]

device

Pointer to eeprom device structure

Return values

status_success

or status_fail if initialization fails

e2p_emulation_xpi_read()

hpm_stat_t e2p_emulation_xpi_read	(	hpm_eeprom_device_t *	device,
		uint32_t	data_addr,
		uint32_t	len,
		uint8_t *	data
	)

Read data from eeprom xpi emulation device.

Parameters

[in]	device	Pointer to eeprom device structure
[in]	data_addr	Data address to read from
[in]	len	Length of data to read
[in]	data	Pointer to buffer to store read data

Return values

status_success

or status_fail if read fails

e2p_emulation_xpi_register_param()

hpm_stat_t e2p_emulation_xpi_register_param

(

hpm_eeprom_device_t *

device

)

Register eeprom xpi emulation device parameter to device structure.

Parameters

[in]

device

Pointer to eeprom device structure

Return values

status_success

e2p_emulation_xpi_write()

hpm_stat_t e2p_emulation_xpi_write	(	hpm_eeprom_device_t *	device,
		uint32_t	data_addr,
		uint32_t	len,
		uint8_t *	data
	)

Write data to eeprom xpi emulation device.

Parameters

[in]	device	Pointer to eeprom device structure
[in]	data_addr	Data address to write to
[in]	len	Length of data to write
[in]	data	Pointer to buffer containing data to write

Return values

status_success

or status_fail if write fails

eeprom_enter_critical()

static uint32_t eeprom_enter_critical ( void  )

static

Enter critical section by disabling global interrupts.

eeprom_exit_critical()

static void eeprom_exit_critical ( uint32_t  level )

static

Exit critical section by restoring global interrupts.

flash_erase()

static void flash_erase ( uint32_t  start_addr, uint32_t  size  )

static

Flash erase function for eeprom emulation.

Parameters

[in]	start_addr	Start address to erase
[in]	size	Size of data to erase

flash_read()

static uint32_t flash_read ( uint8_t *  buf, uint32_t  addr, uint32_t  size  )

static

Flash read function for eeprom emulation.

Parameters

[in]	buf	Pointer to buffer to store read data
[in]	addr	Address to read from
[in]	size	Size of data to read

Return values

status_success

flash_write()

static uint32_t flash_write ( uint8_t *  buf, uint32_t  addr, uint32_t  size  )

static

Flash write function for eeprom emulation.

Parameters

[in]	buf	Pointer to buffer containing data to write
[in]	addr	Address to write to
[in]	size	Size of data to write

Return values

status_success

Variable Documentation

hpm_e2p_emulation

e2p_t hpm_e2p_emulation

hpm_e2p_xpi_device_ops

e2p_device_ops_t hpm_e2p_xpi_device_ops

static

Initial value:

= {
    .init = e2p_emulation_xpi_init,
    .deinit = NULL,
    .read = e2p_emulation_xpi_read,
    .write = e2p_emulation_xpi_write,
}

eeprom xpi emulation device operations structure