mx27_ata.h

Microsoft WinCE 6.0 BSP FINAL release source code for use with the i.MX27ADS TO2 WCE600_FINAL_MX27_S

//------------------------------------------------------------------------------
//
//  Copyright (C) 2004-2006, Freescale Semiconductor, Inc. All Rights Reserved.
//  THIS SOURCE CODE, AND ITS USE AND DISTRIBUTION, IS SUBJECT TO THE TERMS
//  AND CONDITIONS OF THE APPLICABLE LICENSE AGREEMENT 
//
//------------------------------------------------------------------------------
//
//  Header: mx27_ata.h
//
//  Provides definitions for ATA module based on Freescale MX27 SoC.
//
//------------------------------------------------------------------------------
#ifndef __MX27_ATA_H
#define __MX27_ATA_H

#if __cplusplus
extern "C" {
#endif

//------------------------------------------------------------------------------
// GENERAL MODULE CONSTANTS
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
// REGISTER LAYOUT
//------------------------------------------------------------------------------
#if 0
typedef struct{
    UCHAR    ATATimeOff;        // 00: ATA Tx Control Register
    UCHAR    ATATimeOn;      // 04: ATA Tx Count Register
    UCHAR    ATATime1;        // 08: ATA Rx Control Register
    UCHAR    ATATime2W;     // 0C: ATA Tx Status Register
    UCHAR    ATATime2R;     // 10: ATA Rx Status Register
    UCHAR    ATATimeAX;       // 14: ATA Tx FIFO Register
    UCHAR    ATATimePIORdx;       // 18: ATA Rx FIFO Register
    UCHAR    ATATime4;          // 1C: ATA Control Register
    UCHAR    ATATime9;          // 1C: ATA Control Register
	UCHAR    OtherParas1[0x24-0x09];
	UCHAR    ATAControl;
	UCHAR    _FillBytes1[3];
	UCHAR    InterruptPending;
	UCHAR    _FillBytes2[3];
	UCHAR    InterruptEnable;
	UCHAR    _FillBytes20[3];
	UCHAR    InterruptClear;
	UCHAR    _FillBytes21[3];
	UCHAR    OtherParas2[0xA0-0x34];
	USHORT    DriveData;
	UCHAR    _FillByte3[2];
	UCHAR    DriveFeatures;
	UCHAR    _FillByte4[3];
	UCHAR	 DriveSectorCount;
	UCHAR    _FillByte5[3];
	UCHAR	 DriveSectorNum;
	UCHAR    _FillByte6[3];
	UCHAR	 DriveCylLow;
	UCHAR    _FillByte7[3];
	UCHAR    DriveCylHigh;
	UCHAR    _FillByte8[3];
	UCHAR	 DriveDevHead;
	UCHAR    _FillByte9[3];
	UCHAR	 DriveCommandStatus;
	UCHAR    _FillByte10[3];
	UINT32	 Reserved[6];
	UCHAR	 DriveAltStatus;
	UCHAR    _FillByte11[3];
} CSP_ATA_REG, *PCSP_ATA_REG;

#endif

typedef struct{
	UINT32   ATA_TIME_CONFIG0;   // 0x00
	UINT32   ATA_TIME_CONFIG1;   // 0x04
	UINT32   ATA_TIME_CONFIG2;   // 0x08
	UINT32   ATA_TIME_CONFIG3;   // 0x0c
	UINT32   ATA_TIME_CONFIG4;   // 0x10
	UINT32   ATA_TIME_CONFIG5;   // 0x14
	UINT32   FIFO_DATA_32[2];    // 0x18
	UINT32   FIFO_FILL;          // 0x20
	UINT32    ATAControl;        // 0x24
	UINT32    InterruptPending;  // 0x28
	UINT32    InterruptEnable;   // 0x2c
	UINT32    InterruptClear;    // 0x30
	UINT32    FIFOAlarm;         // 0x34
	UCHAR    _FillBytes6[0x68];  // 0x38
	USHORT    DriveData;         // 0xa0
	UCHAR    _FillBytes7[2];   
	UCHAR    DriveFeatures;      // 0xa4
	UCHAR    _FillBytes8[3];
	UCHAR	 DriveSectorCount;   // 0xa8
	UCHAR    _FillBytes9[3];
	UCHAR	 DriveSectorNum;     // 0xac
	UCHAR    _FillBytes10[3];
	UCHAR	 DriveCylLow;        // 0xb0
	UCHAR    _FillBytes11[3];
	UCHAR    DriveCylHigh;       // 0xb4
	UCHAR    _FillBytes12[3];
	UCHAR	 DriveDevHead;       // 0xb8
	UCHAR    _FillBytes13[3];
	UCHAR	 DriveCommandStatus; // 0xbc
	UCHAR    _FillBytes14[3];
	UINT32	 Reserved[6];        
	UCHAR	 DriveAltStatus;     // 0xd8
	UCHAR    _FillBytes15[3];
} CSP_ATA_REG, *PCSP_ATA_REG;

#define ATA_DRIVE_REG_OFFSET 0xA0
#define ATA_DRIVE_ALT_OFFSET 0xD8

//------------------------------------------------------------------------------
// REGISTER OFFSETS
//------------------------------------------------------------------------------

#define ATA_TIME_CONFIG0_OFFSET  0x0000 
#define ATA_TIME_CONFIG1_OFFSET  0x0004 
#define ATA_TIME_CONFIG2_OFFSET  0x0008 
#define ATA_TIME_CONFIG3_OFFSET  0x000C 
#define ATA_TIME_CONFIG4_OFFSET  0x0010 
#define ATA_TIME_CONFIG5_OFFSET  0x0014 
#define ATA_FIFO_DATA_32_OFFSET  0x0018 
#define ATA_FIFO_DATA_16_OFFSET  0x001C 
#define ATA_FIFO_FILL_OFFSET     0x0020 
#define ATA_CONTROL_OFFSET       0x0024 
#define ATA_INT_PENDING_OFFSET   0x0028 
#define ATA_INT_ENABLE_OFFSET    0x002C 
#define ATA_INT_CLEAR_OFFSET     0x0030 
#define ATA_FIFO_ALARM_OFFSET    0x0034 
#define ATA_DCTR_OFFSET          0x00D8 // drive control register (w, alt. stat reg (r
#define ATA_DDTR_OFFSET          0x00A0 // drive data register (rw
#define ATA_DFTR_OFFSET          0x00A4 // drive features regi (w, error reg (r
#define ATA_DSCR_OFFSET          0x00A8 //  drive sector count reg
#define ATA_DSNR_OFFSET          0x00AC //  drive sector number reg
#define ATA_DCLR_OFFSET          0x00B0 //  drive cylinder low reg
#define ATA_DCHR_OFFSET          0x00B4 //  drive cylinder high reg 
#define ATA_DDHR_OFFSET          0x00B8 //  drive device head reg
#define ATA_DCDR_OFFSET          0x00BC //  drive command reg (w, status reg (r
#define ATA_DALT_OFFSET          0x00D8 //  drive control reg (w, alternate status reg (r

//------------------------------------------------------------------------------
// REGISTER BIT FIELD POSITIONS (LEFT SHIFT)
//------------------------------------------------------------------------------
#define ATA_CONTROL_IORDY_EN_LSH             0
#define ATA_CONTROL_DMA_WRITE_LSH            1
#define ATA_CONTROL_DMA_ULTRA_SELECTED_LSH   2
#define ATA_CONTROL_DMA_PENDING_LSH          3
#define ATA_CONTROL_FIFO_RCV_EN_LSH          4
#define ATA_CONTROL_FIFO_TX_EN_LSH           5
#define ATA_CONTROL_ATARESET_LSH             6
#define ATA_CONTROL_FIFORESET_LSH            7 


//------------------------------------------------------------------------------
// REGISTER BIT FIELD WIDTHS
//------------------------------------------------------------------------------
#define ATA_CONTROL_IORDY_EN_WID             0
#define ATA_CONTROL_DMA_WRITE_WID            1
#define ATA_CONTROL_DMA_ULTRA_SELECTED_WID   2
#define ATA_CONTROL_DMA_PENDING_WID          3
#define ATA_CONTROL_FIFO_RCV_EN_WID          4
#define ATA_CONTROL_FIFO_TX_EN_WID           5
#define ATA_CONTROL_ATARESET_WID             6
#define ATA_CONTROL_FIFORESET_WID            7 

//------------------------------------------------------------------------------
// REGISTER BIT WRITE VALUES
//------------------------------------------------------------------------------
#define ATA_CONTROL_IORDY_EN_DISABLE            0
#define ATA_CONTROL_IORDY_EN_ENABLE             1

#define ATA_CONTROL_DMA_WRITE_DISABLE           0
#define ATA_CONTROL_DMA_WRITE_ENABLE            1

#define ATA_CONTROL_DMA_ULTRA_SELECTED_DISABLE  0
#define ATA_CONTROL_DMA_ULTRA_SELECTED_ENABLE   1

#define ATA_CONTROL_DMA_PENDING_DISABLE         0
#define ATA_CONTROL_DMA_PENDING_ENABLE          1

#define ATA_CONTROL_FIFO_RCV_EN_DIABLE          0
#define ATA_CONTROL_FIFO_RCV_EN_ENABLE          1

#define ATA_CONTROL_FIFO_TX_EN_DISABLE          0
#define ATA_CONTROL_FIFO_TX_EN_ENABLE           1

#define ATA_CONTROL_ATARESET_RESET              0
#define ATA_CONTROL_ATARESET_NORMAL             1

#define ATA_CONTROL_FIFORESET_RESET             0 
#define ATA_CONTROL_FIFORESET_NORMAL            1 


#ifdef __cplusplus
}
#endif

#endif // __MX27_ATA_H