rt-thread-official/components/drivers/mtd/mtd_nor.c

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/*
* File : mtd_nor.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
*
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* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2012-5-30 Bernard the first version
*/
#include <drivers/mtd_nor.h>
#ifdef RT_USING_MTD_NOR
/**
* RT-Thread Generic Device Interface
*/
static rt_err_t _mtd_init(rt_device_t dev)
{
return RT_EOK;
}
static rt_err_t _mtd_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t _mtd_close(rt_device_t dev)
{
return RT_EOK;
}
static rt_size_t _mtd_read(rt_device_t dev,
rt_off_t pos,
void *buffer,
rt_size_t size)
{
return size;
}
static rt_size_t _mtd_write(rt_device_t dev,
rt_off_t pos,
const void *buffer,
rt_size_t size)
{
return size;
}
static rt_err_t _mtd_control(rt_device_t dev, int cmd, void *args)
{
return RT_EOK;
}
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#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops mtd_nor_ops =
{
_mtd_init,
_mtd_open,
_mtd_close,
_mtd_read,
_mtd_write,
_mtd_control
};
#endif
rt_err_t rt_mtd_nor_register_device(const char *name,
struct rt_mtd_nor_device *device)
{
rt_device_t dev;
dev = RT_DEVICE(device);
RT_ASSERT(dev != RT_NULL);
/* set device class and generic device interface */
dev->type = RT_Device_Class_MTD;
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#ifdef RT_USING_DEVICE_OPS
dev->ops = &mtd_nor_ops;
#else
dev->init = _mtd_init;
dev->open = _mtd_open;
dev->read = _mtd_read;
dev->write = _mtd_write;
dev->close = _mtd_close;
dev->control = _mtd_control;
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#endif
dev->rx_indicate = RT_NULL;
dev->tx_complete = RT_NULL;
/* register to RT-Thread device system */
return rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
}
#endif