2013-01-08 22:40:58 +08:00
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/*
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* File : sdcard.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 - 2012, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef __SDCARD_H
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#define __SDCARD_H
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#include <rtthread.h>
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#ifdef RT_USING_DFS
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#include <sep4020.h>
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#define INICLK 300000
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#define SDCLK 24000000 //PCLK=49.392MHz
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#define MMCCLK 15000000 //PCLK=49.392MHz
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/*struct of the SDC*/
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struct sd_c
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{
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__IO rt_uint32_t clk_ctl;
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__IO rt_uint32_t soft_rst;
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__IO rt_uint32_t arg;
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__IO rt_uint32_t cmd;
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__IO rt_uint32_t blk_sz;
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__IO rt_uint32_t blk_cnt;
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__IO rt_uint32_t trans_mode;
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__O rt_uint32_t response0;
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__O rt_uint32_t response1;
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__O rt_uint32_t response2;
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__O rt_uint32_t response3;
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__IO rt_uint32_t rd_to_ctl;
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__IO rt_uint32_t int_stat;
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__IO rt_uint32_t int_stat_mask;
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__O rt_uint32_t rx_fifo;
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__I rt_uint32_t tx_fifo;
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};
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/*sdcard driver structure*/
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struct sd_device
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{
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struct rt_device *device; /*rt_device*/
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struct sd_c *sdc; /*SDCARD register*/
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struct dfs_partition *part; /*dfs partitions*/
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rt_uint8_t *sec_buf; /*sdcard buffer*/
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rt_uint32_t part_num; /*partiont numbers*/
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rt_uint32_t buf_size; /*buffer size*/
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};
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#endif
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#endif
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