sdhal.h

周立功开发板smartArm2300的sd示例程序。

/****************************************Copyright (c)**************************************************
**                               Guangzhou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name:			sdhal.h
** Last modified Date:	2005-3-11
** Last Version:		V2.0
** Descriptions:		SD/MMC卡读写模块 ---- 硬件抽象层文件头文件
**
**
**------------------------------------------------------------------------------------------------------
** Created by:			Ming Yuan Zheng
** Created date:		2005-1-6
** Version:				V1.0
** Descriptions:		The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:			
** Modified date:		
** Version:				
** Descriptions:		
**
**------------------------------------------------------------------------------------------------------
** Modified by: 
** Modified date:
** Version:	
** Descriptions: 
**
********************************************************************************************************/

#ifndef __SDHAL_H__
#define __SDHAL_H__


/**************************************
   LPC23xx 硬件配置(使用SD总线) 
**************************************/

#if SDBUS_MODE_EN

/* P0.19 为 MCLK */
#define  MCI_CLK_PIN()      PINSEL1 &= ~(0x03 << 6); PINSEL1 |= (0x2 << 6);
#define  MCI_CLK_GPIO()     PINSEL1 &= ~(0x03 << 6); 
#define  MCI_CLK_OUT()      IO0DIR |= (0x01 << 19);
#define  MCI_CLK_CLR()      IO0CLR |= (0x01 << 19);

/* P0.20 为 MCMD */
#define  MCI_CMD_PIN()      PINSEL1 &= ~(0x03 << 8); PINSEL1 |= (0x2 << 8);
#define  MCI_CMD_GPIO()     PINSEL1 &= ~(0x03 << 8); 
#define  MCI_CMD_OUT()      IO0DIR |= (0x01 << 20);
#define  MCI_CMD_CLR()      IO0CLR |= (0x01 << 20);

/* P0.22 为 MCIDAT0 */
#define  MCI_DAT0_PIN()     PINSEL1 &= ~(0x03 << 12);PINSEL1 |= (0x2 << 12);
#define  MCI_DAT0_GPIO()    PINSEL1 &= ~(0x03 << 12);
#define  MCI_DAT0_OUT()     IO0DIR |= (0x01 << 22);
#define  MCI_DAT0_CLR()     IO0CLR |= (0x01 << 22);

/* P2.11 为 MCIDAT1 */
#define  MCI_DAT1_PIN()     PINSEL4 &= ~(0x03 << 22);PINSEL4 |= (0x2 << 22);  
#define  MCI_DAT1_GPIO()    PINSEL4 &= ~(0x03 << 22); 
#define  MCI_DAT1_OUT()     FIO2DIR |= (0x01 << 11);
#define  MCI_DAT1_CLR()     FIO2CLR |= (0x01 << 11);
 
/* P2.12 为 MCIDAT2 */
#define  MCI_DAT2_PIN()     PINSEL4 &= ~(0x03 << 24);PINSEL4 |= (0x2 << 24);  
#define  MCI_DAT2_GPIO()    PINSEL4 &= ~(0x03 << 24);
#define  MCI_DAT2_OUT()     FIO2DIR |= (0x01 << 12);
#define  MCI_DAT2_CLR()     FIO2CLR |= (0x01 << 12);

/* P2.13 为 MCIDAT3 */
#define  MCI_DAT3_PIN()     PINSEL4 &= ~(0x03 << 26);PINSEL4 |= (0x2 << 26);
#define  MCI_DAT3_GPIO()    PINSEL4 &= ~(0x03 << 26);
#define  MCI_DAT3_OUT()     FIO2DIR |= (0x01 << 13);
#define  MCI_DAT3_CLR()     FIO2CLR |= (0x01 << 13);


/* P0.21 电源控制引脚 */
#define  SD_POWER				(0x01 << 21)	
#define  SD_POWER_GPIO()		PINSEL1 &= ~(0x03 << 10)		/* 设置 POWER 口为GPIO口 */
#define  SD_POWER_OUT()			IO0DIR |= SD_POWER				/* 设置 POWER 口为输出口 */
#define  SD_POWER_OFF()			IO0SET |= SD_POWER				/* 置 POWER 为高电平 */
#define  SD_POWER_ON()			IO0CLR |= SD_POWER				/* 置 POWER 为低电平 */


/* P2.8 卡完全插入卡座检测引脚 */
#define  SD_INSERT				(0x01 << 8)		
#define  SD_INSERT_GPIO()		PINSEL4 &= ~(0x03 << 16)		/* 设置 INSERT 口为GPIO口 */	
#define  SD_INSERT_IN()			FIO2DIR &= ~SD_INSERT			/* 设置 INSERT 口为输入口 */	
#define  SD_INSERT_STATUS()  	(FIO2PIN & SD_INSERT)			/* 读取 INSERT 口的状态 */

/* P3.25 卡写保护检测引脚 */
#define  SD_WP					(0x01 << 25)		
#define  SD_WP_GPIO()			PINSEL7 &= ~(0x03 << 18);		/* 设置 WP 口为GPIO口 */	
#define  SD_WP_IN()				FIO3DIR &= ~SD_WP				/* 设置 WP 口为输入口 */	
#define  SD_WP_STATUS()  		(FIO3DIR & SD_WP)				/* 读取 WP 口的状态   */


/*
****************************
   SD 总线模式
****************************
*/

/* SD/MMC Command list, per MMC spec. SD Memory Card Spec. Simplified version */
#define GO_IDLE_STATE		0		/* GO_IDLE_STATE(MMC) or RESET(SD) */
#define SEND_OP_COND		1		/* SEND_OP_COND(MMC) or ACMD41(SD) */
#define ALL_SEND_CID		2		/* ALL SEND_CID */
#define SET_RELATIVE_ADDR	3		/* SET_RELATE_ADDR */
#define SET_ACMD_BUS_WIDTH	6
#define SELECT_CARD			7		/* SELECT/DESELECT_CARD */
#define SEND_CSD			9		/* SEND_CSD */
#define STOP_TRANSMISSION	12		/* Stop either READ or WRITE operation */
#define SEND_STATUS			13		/* SEND_STATUS */
#define SET_BLOCK_LEN		16		/* SET_BLOCK_LEN */
#define READ_SINGLE_BLOCK	17		/* READ_SINGLE_BLOCK */
#define WRITE_BLOCK			24		/* WRITE_BLOCK */
#define SEND_APP_OP_COND	41		/* ACMD41 for SD card */		
#define APP_CMD				55		/* APP_CMD, the following will a ACMD */


#define EXPECT_NO_RESP		0
#define EXPECT_SHORT_RESP	1
#define EXPECT_LONG_RESP	2


#define MCLKDIV_SLOW		0x3B
#define MCLKDIV_NORMAL		0x09


#define BLOCK_NUM			0x80		
#define FIFO_SIZE			16

/* MCI Status register bit information */
#define MCI_CMD_CRC_FAIL	1 << 0
#define MCI_DATA_CRC_FAIL	1 << 1
#define MCI_CMD_TIMEOUT		1 << 2
#define MCI_DATA_TIMEOUT	1 << 3
#define MCI_TX_UNDERRUN		1 << 4
#define MCI_RX_OVERRUN		1 << 5
#define MCI_CMD_RESP_END	1 << 6
#define MCI_CMD_SENT		1 << 7
#define MCI_DATA_END		1 << 8
#define MCI_START_BIT_ERR	1 << 9
#define MCI_DATA_BLK_END	1 << 10
#define MCI_CMD_ACTIVE		1 << 11
#define MCI_TX_ACTIVE		1 << 12
#define MCI_RX_ACTIVE		1 << 13
#define MCI_TX_HALF_EMPTY	1 << 14
#define MCI_RX_HALF_FULL	1 << 15
#define MCI_TX_FIFO_FULL	1 << 16
#define MCI_RX_FIFO_FULL	1 << 17
#define MCI_TX_FIFO_EMPTY	1 << 18
#define MCI_RX_FIFO_EMPTY	1 << 19
#define MCI_TX_DATA_AVAIL	1 << 20
#define MCI_RX_DATA_AVAIL	1 << 21

#define CMD_INT_MASK		(MCI_CMD_CRC_FAIL | MCI_CMD_TIMEOUT | MCI_CMD_RESP_END \
                             | MCI_CMD_SENT | MCI_CMD_ACTIVE)
                             
#define DATA_ERR_INT_MASK	(MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_TX_UNDERRUN \
			                 | MCI_RX_OVERRUN | MCI_START_BIT_ERR)
			
#define DATA_INT_MASK		(MCI_DATA_END | MCI_DATA_BLK_END | MCI_TX_ACTIVE \
			                 | MCI_RX_ACTIVE)
			                 
#define FIFO_INT_MASK		(MCI_TX_HALF_EMPTY | MCI_RX_HALF_FULL | MCI_TX_FIFO_FULL \
			               | MCI_RX_FIFO_FULL | MCI_TX_FIFO_EMPTY | MCI_RX_DATA_AVAIL \
			               | MCI_TX_DATA_AVAIL | MCI_RX_FIFO_EMPTY)
			               
#define DATA_TX_INT_MASK	MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_TX_UNDERRUN \
			| MCI_START_BIT_ERR | MCI_DATA_END | MCI_DATA_BLK_END | MCI_TX_ACTIVE
			
#define DATA_RX_INT_MASK	MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_RX_OVERRUN \
			| MCI_START_BIT_ERR | MCI_DATA_END | MCI_DATA_BLK_END | MCI_RX_ACTIVE



extern void SdHal_EnableMCIBusWidth(sd_struct *sds, INT32U bWidth);
extern INT8U SdHal_Initialize(sd_struct *sds);
extern void SdHal_OpenDrainCmd(sd_struct *sds, INT8U bOpenDrain);


extern void SdHal_SetMCIClock(sd_struct *sds, INT32U ClockRate);
extern INT8U SdHal_SendCmd(sd_struct *sds, INT8U cmd, INT32U argument, INT8U resptype, INT32U *resp, INT8U resplen);
extern INT8U SdHal_CheckCard(sd_struct *sds);
extern INT8U SdHal_CheckCardWP(sd_struct *sds);

extern INT8U SdHal_BeforeReadBlock(sd_struct *sds);
extern INT8U SdHal_ReadBlock(sd_struct *sds, INT8U *recbuf);

extern INT8U SdHal_BeforeWriteBlock(sd_struct *sds);
extern INT8U SdHal_WriteBlock(sd_struct *sds, INT8U *sendbuf);
extern INT8U SdHal_WaitReadyforData(sd_struct *sds);
extern INT8U SdHal_WaitBusy(sd_struct *sds, INT32U busytype);

extern void SdHal_EnableMCIBusWidth(sd_struct *sds, INT32U bWidth);

#if !SD_UCOSII_EN
extern void  __irq MCI_Handler(void);
#endif

#endif



#endif