#ifndef _SYSATA_H
#define _SYSATA_H

/****************************************************************************************/
/**	與用戶硬件相關(guān)部分，用戶需要改動(dòng)													*/
/****************************************************************************************/
#define ATA_RST		1<<24						/* CF卡復(fù)位引腳與LPC2210的P2.24連接         */
#define ATA_CD		1<<25						/* CF卡檢測(cè)引腳與LPC2210的P2.25連接         */
#define ATA_EN		0x83600000					/* 總線分配的地址段0x83600000~0x836fffff    */

#define ATA_ALE		1<<20						/* 地址鎖存操制引腳與A20(P3.20)連接         */
#define ATA_RW		1<<19						/* 讀寫信號(hào)出輸使能引腳與A19(P3.19)連接     */
#define ATA_OUT		1<<18						/* 數(shù)據(jù)方向控制引腳與A18(P3.19)連接         */
#define ATA_CS1		1<<5						/* ATA總線的CS1由A5(P3.5)經(jīng)過74574鎖存輸出  */
#define ATA_CS0		1<<4						/* ATA總線的CS0由A4(P3.4)經(jīng)過74574鎖存輸出  */
#define ATA_A2		1<<3						/* ATA總線的A2由A3(P3.3)經(jīng)過74574鎖存輸出   */
#define ATA_A1		1<<2						/* ATA總線的A1由A2(P3.2)經(jīng)過74574鎖存輸出   */
#define ATA_A0		1<<1						/* ATA總線的A0由A1(P3.1)經(jīng)過74574鎖存輸出   */

#define	ATA_REG_DATA          	ATA_CS1							/* 數(shù)據(jù)寄存器地址編碼		*/ 
#define	ATA_REG_ERR           	(ATA_CS1|ATA_A0)				/* 讀錯(cuò)誤寄存器址編碼		*/ 
#define	ATA_REG_FEATURE       	(ATA_CS1|ATA_A0)				/* 寫功能寄存器址編碼		*/ 
#define	ATA_REG_SECCNT        	(ATA_CS1|ATA_A1)				/* 扇區(qū)計(jì)數(shù)器，地址編碼		*/ 
#define	ATA_REG_SECTOR        	(ATA_CS1|ATA_A1|ATA_A0)			/* 扇區(qū)號(hào)寄存器址編碼		*/ 
#define	ATA_REG_CYLINDER_LOW  	(ATA_CS1|ATA_A2)				/* 柱面低8位寄存器地址編碼	*/ 
#define	ATA_REG_CYLINDER_HIGH 	(ATA_CS1|ATA_A2|ATA_A0)			/* 柱面高8位寄存器地址編碼	*/ 
#define	ATA_REG_DEVICE_HEAD   	(ATA_CS1|ATA_A2|ATA_A1)			/* 設(shè)備磁頭寄存器地址編碼	*/ 
#define	ATA_REG_COMMAND       	(ATA_CS1|ATA_A2|ATA_A1|ATA_A0)	/* 寫命令寄存器地址編碼		*/ 
#define	ATA_REG_STATUS        	(ATA_CS1|ATA_A2|ATA_A1|ATA_A0)	/* 讀狀態(tài)寄存器地址編碼		*/ 
#define	ATA_REG_CONTROL       	(ATA_CS0|ATA_A2|ATA_A1)			/* 寫控制寄存器地址編碼		*/ 
#define	ATA_REG_ASTATUS       	(ATA_CS0|ATA_A2|ATA_A1) 		/* 讀輔助狀態(tài)寄存器地址編碼	*/ 		

/*************************************************************************************************/
/*驅(qū)動(dòng)與硬件對(duì)ATA設(shè)備寄存器操作接口*/
#define	GetData()			SYS_PortIn(ATA_REG_DATA)				/* 讀數(shù)據(jù)寄存器,與驅(qū)動(dòng)接口		*/
#define SetData(x)			SYS_PortOut(ATA_REG_DATA,x)				/* 寫數(shù)據(jù)寄存器,與驅(qū)動(dòng)接口		*/

#define	GetERR()			(uint8)SYS_PortIn(ATA_REG_ERR)			/* 讀錯(cuò)誤寄存器,與驅(qū)動(dòng)接口		*/
#define	SetFeature(x)		SYS_PortOut(ATA_REG_FEATURE,x)			/* 寫特征寄存器,與驅(qū)動(dòng)接口		*/

#define	GetSECCNT()			(uint8)SYS_PortIn(ATA_REG_SECCNT)		/* 讀扇區(qū)計(jì)數(shù)寄存器,與驅(qū)動(dòng)接口	*/
#define	SetSECCNT(x)		SYS_PortOut(ATA_REG_SECCNT|ATA_A1,x)	/* 寫扇區(qū)計(jì)數(shù)寄存器,與驅(qū)動(dòng)接口	*/

#define	GetSector()			(uint8)SYS_PortIn(ATA_REG_SECTOR)		/* 讀扇區(qū)寄存器,與驅(qū)動(dòng)接口		*/
#define	SetSector(x)		SYS_PortOut(ATA_REG_SECTOR,x)			/* 寫扇區(qū)寄存器,與驅(qū)動(dòng)接口		*/

#define	GetCylinderLow()	(uint8)SYS_PortIn(ATA_REG_CYLINDER_LOW)	/* 讀柱面低8位寄存器,與驅(qū)動(dòng)接口	*/
#define	SetCylinderLow(x)	SYS_PortOut(ATA_REG_CYLINDER_LOW,x)		/* 寫柱面低8位寄存器,與驅(qū)動(dòng)接口	*/

#define	GetCylinderHigh()	(uint8)SYS_PortIn(ATA_REG_CYLINDER_HIGH)/* 讀柱面高8位寄存器,與驅(qū)動(dòng)接口	*/
#define	SetCylinderHigh(x)	SYS_PortOut(ATA_REG_CYLINDER_HIGH,x)	/* 寫柱面高8位寄存器,與驅(qū)動(dòng)接口	*/

#define	GetDeviceHead()		(uint8)SYS_PortIn(ATA_REG_DEVICE_HEAD)	/* 讀設(shè)備磁頭寄存器,與驅(qū)動(dòng)接口	*/
#define	SetDeviceHead(x)	SYS_PortOut(ATA_REG_DEVICE_HEAD,x)		/* 寫設(shè)備磁頭寄存器,與驅(qū)動(dòng)接口	*/
 
#define	GetStatus()			(uint8)SYS_PortIn(ATA_REG_STATUS)		/* 讀狀態(tài)寄存器,與驅(qū)動(dòng)接口		*/
#define	SetCommand(x)		SYS_PortOut(ATA_REG_COMMAND,x)			/* 寫命令寄存器,與驅(qū)動(dòng)接口		*/

#define	GetAStatus()		(uint8)SYS_PortIn(ATA_REG_ASTATUS)		/* 讀輔助狀態(tài)寄存器,與驅(qū)動(dòng)接口	*/
#define	SetControl(x)		SYS_PortOut(ATA_REG_CONTROL,x)			/* 寫控制寄存器,與驅(qū)動(dòng)接口		*/

/*硬件相關(guān)函數(shù)*/
void 		SYS_BusIni(void);							/* ATA總線初始化處理函數(shù)		   */
uint16 		SYS_PortIn(uint32 reg);						/* 從ATA設(shè)備指定的寄存器讀出一個(gè)字 */ 
void 		SYS_PortOut(uint32 reg,uint16 data);		/* 從ATA設(shè)備指定的寄存器寫入一個(gè)字 */ 
void 		SYS_WaitInUS(uint32 times);					/* 延時(shí)程序						   */
void 		SYS_IdeHardReset(void);						/* ATA設(shè)備硬件復(fù)位處理函數(shù)		   */
uint8 		SYS_HaveCard(void);							/* 檢測(cè)CF卡是否存在				   */

#endif