mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-14 14:41:57 +00:00
8328159b09
The automated process used to remove implicit casts resulted in code that exceeded the documented line length limits. Break the assignment into two lines where this happened. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2019 Vestas Wind Systems A/S
|
|
*
|
|
* Heavily based on drivers/flash.h which is:
|
|
* Copyright (c) 2017 Nordic Semiconductor ASA
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Public API for EEPROM drivers
|
|
*/
|
|
|
|
#ifndef ZEPHYR_INCLUDE_DRIVERS_EEPROM_H_
|
|
#define ZEPHYR_INCLUDE_DRIVERS_EEPROM_H_
|
|
|
|
/**
|
|
* @brief EEPROM Interface
|
|
* @defgroup eeprom_interface EEPROM Interface
|
|
* @ingroup io_interfaces
|
|
* @{
|
|
*/
|
|
|
|
#include <zephyr/types.h>
|
|
#include <stddef.h>
|
|
#include <sys/types.h>
|
|
#include <device.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef int (*eeprom_api_read)(struct device *dev, off_t offset, void *data,
|
|
size_t len);
|
|
typedef int (*eeprom_api_write)(struct device *dev, off_t offset,
|
|
const void *data, size_t len);
|
|
typedef size_t (*eeprom_api_size)(struct device *dev);
|
|
|
|
struct eeprom_driver_api {
|
|
eeprom_api_read read;
|
|
eeprom_api_write write;
|
|
eeprom_api_size size;
|
|
};
|
|
|
|
/**
|
|
* @brief Read data from EEPROM
|
|
*
|
|
* @param dev EEPROM device
|
|
* @param offset Address offset to read from.
|
|
* @param data Buffer to store read data.
|
|
* @param len Number of bytes to read.
|
|
*
|
|
* @return 0 on success, negative errno code on failure.
|
|
*/
|
|
__syscall int eeprom_read(struct device *dev, off_t offset, void *data,
|
|
size_t len);
|
|
|
|
static inline int z_impl_eeprom_read(struct device *dev, off_t offset,
|
|
void *data, size_t len)
|
|
{
|
|
const struct eeprom_driver_api *api =
|
|
(const struct eeprom_driver_api *)dev->driver_api;
|
|
|
|
return api->read(dev, offset, data, len);
|
|
}
|
|
|
|
/**
|
|
* @brief Write data to EEPROM
|
|
*
|
|
* @param dev EEPROM device
|
|
* @param offset Address offset to write data to.
|
|
* @param data Buffer with data to write.
|
|
* @param len Number of bytes to write.
|
|
*
|
|
* @return 0 on success, negative errno code on failure.
|
|
*/
|
|
__syscall int eeprom_write(struct device *dev, off_t offset, const void *data,
|
|
size_t len);
|
|
|
|
static inline int z_impl_eeprom_write(struct device *dev, off_t offset,
|
|
const void *data, size_t len)
|
|
{
|
|
const struct eeprom_driver_api *api =
|
|
(const struct eeprom_driver_api *)dev->driver_api;
|
|
|
|
return api->write(dev, offset, data, len);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the size of the EEPROM in bytes
|
|
*
|
|
* @param dev EEPROM device.
|
|
*
|
|
* @return EEPROM size in bytes.
|
|
*/
|
|
__syscall size_t eeprom_get_size(struct device *dev);
|
|
|
|
static inline size_t z_impl_eeprom_get_size(struct device *dev)
|
|
{
|
|
const struct eeprom_driver_api *api =
|
|
(const struct eeprom_driver_api *)dev->driver_api;
|
|
|
|
return api->size(dev);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#include <syscalls/eeprom.h>
|
|
|
|
#endif /* ZEPHYR_INCLUDE_DRIVERS_EEPROM_H_ */
|