From 9e6d01253560157c4066bccdf7bcb55f0e1bdafa Mon Sep 17 00:00:00 2001 From: "goprife@gmail.com" Date: Mon, 2 Apr 2012 16:34:15 +0000 Subject: [PATCH] add mtd_nand interface code git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2016 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- components/drivers/include/drivers/mtd.h | 2 + components/drivers/include/drivers/mtd_nand.h | 103 ++++++++++++++++++ components/drivers/include/rtdevice.h | 4 + components/drivers/mtd/mtd_core.c | 1 - components/drivers/mtd/mtd_nand.c | 78 +++++++++++++ 5 files changed, 187 insertions(+), 1 deletion(-) create mode 100644 components/drivers/include/drivers/mtd_nand.h create mode 100644 components/drivers/mtd/mtd_nand.c diff --git a/components/drivers/include/drivers/mtd.h b/components/drivers/include/drivers/mtd.h index 13315b268..3306b7ec2 100644 --- a/components/drivers/include/drivers/mtd.h +++ b/components/drivers/include/drivers/mtd.h @@ -90,4 +90,6 @@ rt_inline rt_err_t rt_mtd_erase_block(struct rt_mtd_device* device, rt_uint32_t return device->ops->erase_block(device, block); } + + #endif diff --git a/components/drivers/include/drivers/mtd_nand.h b/components/drivers/include/drivers/mtd_nand.h new file mode 100644 index 000000000..c9f62d3d3 --- /dev/null +++ b/components/drivers/include/drivers/mtd_nand.h @@ -0,0 +1,103 @@ +/* + * 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 + * 2011-04-02 prife add mark_badblock and check_block + */ + +/* + * COPYRIGHT (C) 2012, Shanghai Real Thread + */ + +#ifndef __MTD_NAND_H__ +#define __MTD_NAND_H__ + +#include + +struct rt_mtd_nand_driver_ops; +#define RT_MTD_NAND_DEVICE(device) ((struct rt_mtd_nand_device*)(device)) + +struct rt_mtd_nand_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_nand_driver_ops* ops; +}; + +struct rt_mtd_nand_driver_ops +{ + rt_err_t (*read_id) (struct rt_mtd_nand_device* device); + + rt_err_t (*read_page)(struct rt_mtd_nand_device* device, + rt_off_t page, + rt_uint8_t* data, rt_uint32_t data_len, + rt_uint8_t * spare, rt_uint32_t spare_len); + + rt_err_t (*write_page)(struct rt_mtd_nand_device * device, + rt_off_t page, + const rt_uint8_t * data, rt_uint32_t data_len, + const rt_uint8_t * spare, rt_uint32_t spare_len); + + rt_err_t (*erase_block)(struct rt_mtd_nand_device* device, rt_uint32_t block); + rt_err_t (*check_block)(struct rt_mtd_nand_device* device, rt_uint32_t block); + rt_err_t (*mark_badblock)(struct rt_mtd_nand_device* device, rt_uint32_t block); +}; + +rt_err_t rt_mtd_nand_register_device(const char* name, struct rt_mtd_nand_device* device); + +rt_inline rt_uint32_t rt_mtd_nand_read_id(struct rt_mtd_nand_device* device) +{ + return device->ops->read_id(device); +} + +rt_inline rt_err_t rt_mtd_nand_read( + struct rt_mtd_nand_device* device, + rt_off_t page, + rt_uint8_t* data, rt_uint32_t data_len, + rt_uint8_t * spare, rt_uint32_t spare_len) +{ + return device->ops->read_page(device, page, data, data_len, spare, spare_len); +} + +rt_inline rt_err_t rt_mtd_nand_write( + struct rt_mtd_nand_device* device, + rt_off_t page, + const rt_uint8_t* data, rt_uint32_t data_len, + const rt_uint8_t * spare, rt_uint32_t spare_len) +{ + return device->ops->write_page(device, page, data, data_len, spare, spare_len); +} + +rt_inline rt_err_t rt_mtd_nand_erase_block(struct rt_mtd_nand_device* device, rt_uint32_t block) +{ + return device->ops->erase_block(device, block); +} + +rt_inline rt_err_t rt_mtd_nand_check_block(struct rt_mtd_nand_device* device, rt_uint32_t block) +{ + return device->ops->check_block(device, block); +} + +rt_inline rt_err_t rt_mtd_nand_mark_badblock(struct rt_mtd_nand_device* device, rt_uint32_t block) +{ + return device->ops->mark_badblock(device, block); +} +#endif /* MTD_NAND_H_ */ diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h index e6b7dddd4..583c9afe0 100644 --- a/components/drivers/include/rtdevice.h +++ b/components/drivers/include/rtdevice.h @@ -13,6 +13,10 @@ #include "drivers/mtd.h" #endif +#ifdef RT_USING_MTD_NAND +#include "drivers/mtd_nand.h" +#endif + #ifdef RT_USING_USB_DEVICE #include "drivers/usb_device.h" #endif diff --git a/components/drivers/mtd/mtd_core.c b/components/drivers/mtd/mtd_core.c index a3d429ddd..d34001dfa 100644 --- a/components/drivers/mtd/mtd_core.c +++ b/components/drivers/mtd/mtd_core.c @@ -75,5 +75,4 @@ rt_err_t rt_mtd_register_device(const char* name, struct rt_mtd_device* device) /* register to RT-Thread device system */ return rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE); } - #endif diff --git a/components/drivers/mtd/mtd_nand.c b/components/drivers/mtd/mtd_nand.c new file mode 100644 index 000000000..8be7a9d0d --- /dev/null +++ b/components/drivers/mtd/mtd_nand.c @@ -0,0 +1,78 @@ +/* + * File : mtd_core.c + * 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 + */ + +#include + +#ifdef RT_USING_MTD_NAND + +/* + * 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, rt_uint8_t cmd, void *args) +{ + return RT_EOK; +} + +rt_err_t rt_mtd_nand_register_device(const char* name, struct rt_mtd_nand_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; + dev->init = _mtd_init; + dev->open = _mtd_open; + dev->read = _mtd_read; + dev->write = _mtd_write; + dev->close = _mtd_close; + dev->control = _mtd_control; + + 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