ata_extern.h

文件包含了开发motorola mc9s12uf32单片机一些源码。 1、USB device 实现 2、CF卡读取 3、SD卡读取 4、ATA硬盘读取

/*********************************************************************
 
  (c) copyright Freescale Semiconductor Hong Kong Ltd. 2004
  ALL RIGHTS RESERVED
 
 *********************************************************************
 
                   ATA Driver Module for S12 MCUs 
 
 *********************************************************************

  File:			ata_extern.c
 
  Description:  Prototypes of global variable of ATA Driver
 
  Date:         Jul. 2002
  Author:		Derek Lau
  
 ********************************************************************/




//
//  This is the header file of all the global variables for modules
//   to include in. All the global variables allocation is done in
//   file <ata_Data.c>.
//
#ifndef _ATA_EXTRN_G_DECL_
#define _ATA_EXTRN_G_DECL_ extern
#endif


#ifndef _H_ATA_EXTRN_		// To avoid multiple defining
#define _H_ATA_EXTRN_		// start of external variables definition

#include	"FreescaleDef.h"				// get my Constant & Type definitions.

// --------------------------------------------------------------------

#pragma DATA_SEG DEFAULT

// *********************************************************************
//
// 					Global Variables of ATA Driver
//
// *********************************************************************
//

_ATA_EXTRN_G_DECL_ muint8	gATADevInfo;		// device information
 #define	bitATAATAPI		7					// device is ATAPI
 
_ATA_EXTRN_G_DECL_ muint8	gATAError;		// error code from ATA device

_ATA_EXTRN_G_DECL_ muint8	gATAStatus;		// current status
 #define	bitATAPIOMode	7				
 #define	bitATAUDMAMode	6

_ATA_EXTRN_G_DECL_	muint32	gATALBA;
_ATA_EXTRN_G_DECL_ muint32	gATAMaxCapacity;
_ATA_EXTRN_G_DECL_ muint8	gATAUDMAMode;	// current udma mode
_ATA_EXTRN_G_DECL_ muint8	gATAPIOMode;		// current pio mode
_ATA_EXTRN_G_DECL_ muint8	gATAPacketLen;	// ATAPI Packet Length
_ATA_EXTRN_G_DECL_ muint8	gATASenseKey;	// ATA Sense Key



// code is placed in the main code area.
#pragma CODE_SEG	DEFAULT



// *********************************************************************
//
//	               EXPORTED FUNCTIONS FOR OTHER MODULES
//
//   (Can be called by other modules like Application, Drivers...etc)
//
// *********************************************************************


// ==================================================================
//   ATA_PreInitDriver() -
//
//     To initialize the ATA Driver module. (Register event Sources)
// ==================================================================
void	ATA_PreInitDriver(void);



// ==================================================================
//   ATA_PostInitDriver() -
//
//     To initialize the ATA Driver module. (Attach hook functions)
// ==================================================================
void	ATA_PostInitDriver(void);


// ===========================================================
//   IsrATAHwIrq() -
//  
//		ATA interrupt service routine.
//
// ===========================================================
void IsrATAHwIrq(void);





#endif	_H_ATA_EXTRN_		// end of my external variables definition
//
// The end of file ATA_extern.h 
// *********************************************************************************