/*!
?*?????COPYRIGHT?NOTICE
?*?????Copyright?（c）?2013野火科技
?*?????All?rights?reserved.
?*?????技術討論：野火初學論壇?http://www.chuxue123.com
?*
?*?????除注明出處外，以下所有內容版權均屬野火科技所有，未經允許，不得用于商業用途，
?*?????修改內容時必須保留野火科技的版權聲明。
?*
?*?????本驅動由brtos代碼提取并修改而成:http://code.google.com/p/brtos/downloads/detail?name=BRTOS%201.66%20Kinetis%20-%20SD%20card%20-%20BMP%2024%20bit.rar&can=2&q=
?*
?*?@file???????diskio.c
?*?@brief??????FATFS?底層接口實現函數
?*?@author?????野火科技?&?gustavo（brtos作者）
?*?@version????v5.0
?*?@date???????2013-09-19
?*/

#include?“common.h“
#include?“MK60_sdhc.h“
#include?“diskio.h“


static?volatile?DSTATUS???Stat?????????????=?STA_NOINIT;????/*?硬盤狀態?????????*/

/*!
?*??@brief??????硬盤初始化
?*??@param??????drv?????????????????設備號（目前代碼僅支持為?0）
?*??@since??????v5.0
?*/
DSTATUS?disk_initialize?（unsigned?char?drv）
{
????uint32??????????????????????param?c_size?c_size_mult?read_bl_len;
????ESDHC_CMD_t?????????????????command;

????if?（drv）?return?STA_NOINIT;?????????/*?目前代碼僅支持1個設備?*/
????if?（Stat?&?STA_NODISK）?return?Stat;?/*?沒有插入卡?*/
????if?（（Stat?&?STA_NOINIT）?==?0）???return?0;/*?沒有初始化?*/

????SDHC_card.SD_TIMEOUT?=?0;
????SDHC_card.NUM_BLOCKS?=?0;
????SDHC_card.ADDRESS?=?0;
????SDHC_card.SDHC?=?FALSE;
????SDHC_card.VERSION2?=?FALSE;

????/*?初始化和檢測卡?*/
????if?（ESDHC_IOCTL_OK?!=?SDHC_ioctl?（ESDHC_IOCTL_INIT?NULL））
????{
????????return?FALSE;
????}

????/*?SDHC?檢測?*/
????param?=?0;
????if?（ESDHC_IOCTL_OK?!=?SDHC_ioctl?（ESDHC_IOCTL_GET_CARD?¶m））
????{
????????return?FALSE;
????}
????if?（（ESDHC_CARD_SD?==?param）?||?（ESDHC_CARD_SDHC?==?param）?||?（ESDHC_CARD_SDCOMBO?==?param）?||?（ESDHC_CARD_SDHCCOMBO?==?param））
????{
????????if?（（ESDHC_CARD_SDHC?==?param）?||?（ESDHC_CARD_SDHCCOMBO?==?param））
????????{
????????????SDHC_card.SDHC?=?TRUE;
????????}
????}
????else
????{
????????return?FALSE;
????}

????/*?卡識別?*/
????command.COMMAND?=?ESDHC_CMD2;
????command.TYPE?=?ESDHC_TYPE_NORMAL;
????command.ARGUMENT?=?0;
????command.READ?=?FALSE;
????command.BLOCKS?=?0;
????if?（ESDHC_IOCTL_OK?!=?SDHC_ioctl?（ESDHC_IOCTL_SEND_CMD?&command））
????{
????????return?FALSE;
????}

????/*?獲得卡地址?*/
????command.COMMAND?=?ESDHC_CMD3;
????command.TYPE?=?ESDHC_TYPE_NORMAL;
????command.ARGUMENT?=?0;
????command.READ?=?FALSE;
????command.BLOCKS?=?0;
????if?（ESDHC_IOCTL_OK?!=?SDHC_ioctl?（ESDHC_IOCTL_SEND_CMD?&command））
????{
????????return?FALSE;
????}
????SDHC_card.ADDRESS?=?command.RESPONSE[0]?&?0xFFFF0000;

????/*?獲得卡參數?*/
????command.COMMAND?=?ESDHC_CMD9;
????command.TYPE?=?ESDHC_TYPE_NORMAL;
????command.ARGUMENT?=?SDHC_card.ADDRESS;
????command.READ?=?FALSE;
????command.BLOCKS?=?0;
????if?（ESDHC_IOCTL_OK?!=?SDHC_ioctl?（ESDHC_IOCTL_SEND_CMD?&command））
????{
????????return?FALSE;
????}
????if?（0?==?（command.RESPONSE[3]?&?0x00C00000））
????{
????????read_bl_len?=?（command.RESPONSE[2]?>>?8）?&?0x0F;
????????c_size?=?command.RESPONSE[2]?&?0x03;
????????c_size?=?（c_size?<