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add MTD device.

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1939 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com
2012-02-07 03:55:01 +00:00
parent a5e0a4526a
commit 4f458c68d2
4 changed files with 161 additions and 5 deletions
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components/drivers/include/drivers/mtd.h
+79 -4
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@@ -1,18 +1,93 @@
/*
* File : mtd.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-12-05 Bernard the first version
*/
/*
* COPYRIGHT (C) 2012, Shanghai Real Thread
*/
#ifndef __MTD_H__
#define __MTD_H__
#include <rtdevice.h>
struct rt_mtd_driver_ops;
#define RT_MTD_DEVICE(device) ((struct rt_mtd_device*)(device))
struct rt_mtd_device
{
struct rt_device parent;
rt_uint32_t page_size; /* The Page size in the flash */
rt_uint32_t block_size; /* The Block size in the flash */
rt_uint16_t oob_size; /* Out of bank size */
rt_uint16_t reserve;
rt_uint32_t block_start; /* The start of available block*/
rt_uint32_t block_end; /* The end of available block */
/* operations interface */
const struct rt_mtd_driver_ops* ops;
};
struct rt_mtd_driver_ops
{
rt_uint32_t (*read_id) (rt_mtd_device* device);
rt_err_t (*read_page) (rt_mtd_device* device, rt_uint32_t page, rt_uint8_t *data, rt_uint8_t *spare);
rt_err_t (*write_page) (rt_mtd_device* device, rt_uint32_t page, rt_uint8_t *data, rt_uint8_t *spare);
rt_uint32_t (*read_id) (struct rt_mtd_device* device);
rt_err_t (*erase_block)(rt_mtd_device* device, rt_uint32_t block);
int (*read) (struct rt_mtd_device* device, rt_off_t position, rt_uint8_t* data, rt_size_t size);
int (*write)(struct rt_mtd_device* device, rt_off_t position, const rt_uint8_t* data, rt_size_t size);
int (*oob_read) (struct rt_mtd_device* device, rt_off_t position, rt_uint8_t* spare);
int (*oob_write)(struct rt_mtd_device* device, rt_off_t position, const rt_uint8_t* spare);
rt_err_t (*erase_block)(struct rt_mtd_device* device, rt_uint32_t block);
};
rt_err_t rt_mtd_register_device(const char* name, struct rt_mtd_device* device);
rt_inline rt_uint32_t rt_mtd_read_id(struct rt_mtd_device* device)
{
return device->ops->read_id(device);
}
rt_inline int rt_mtd_read(struct rt_mtd_device* device, rt_off_t position,
rt_uint8_t* data, rt_size_t size)
{
return device->ops->read(device, position, data, size);
}
rt_inline int rt_mtd_write(struct rt_mtd_device* device, rt_off_t position,
const rt_uint8_t* data, rt_size_t size)
{
return device->ops->write(device, position, data, size);
}
rt_inline int rt_mtd_oob_read(struct rt_mtd_device* device, rt_off_t position,
rt_uint8_t* data)
{
return device->ops->oob_read(device, position, data);
}
rt_inline int rt_mtd_oob_write(struct rt_mtd_device* device, rt_off_t position,
const rt_uint8_t* data)
{
return device->ops->oob_write(device, position, data);
}
rt_inline rt_err_t rt_mtd_erase_block(struct rt_mtd_device* device, rt_uint32_t block)
{
return device->ops->erase_block(device, block);
}
#endif
components/drivers/include/rtdevice.h
+2
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@@ -3,6 +3,8 @@
#include <rtthread.h>
#define RT_DEVICE(device) ((rt_device_t)device)
#ifdef RT_USING_SPI
#include "drivers/spi.h"
#endif