atadev.h

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/*! \file atadev.h \brief IDE-ATA interface device driver. */
//*****************************************************************************
//
// File Name    : 'atadev.h'
// Title        : IDE-ATA interface device driver
// Author       : Pascal Stang
// Date         : 8/15/2004
// Revised      : 8/15/2004
// Version      : 0.1
// Target MCU   : ARMmini LPC210x
// Editor Tabs  : 4
//
// NOTE: This code is currently below version 1.0, and therefore is considered
// to be lacking in some functionality or documentation, or may not be fully
// tested.  Nonetheless, you can expect most functions to work.
//
// This code is distributed under the GNU Public License
//      which can be found at http://www.gnu.org/licenses/gpl.txt
//
//*****************************************************************************


#ifndef ATADEV_H
#define ATADEV_H

#include "global.h"
#include "membus.h"
#include "device.h"
#include "atadevconf.h"

// constants
// ATA register offsets
#define ATA_REG_DATA            0x00
#define ATA_REG_ERROR           0x01
#define ATA_REG_SECCOUNT        0x02
#define ATA_REG_STARTSEC        0x03
#define ATA_REG_CYLLO           0x04
#define ATA_REG_CYLHI           0x05
#define ATA_REG_HDDEVSEL        0x06
#define ATA_REG_CMDSTATUS1      0x07
#define ATA_REG_CMDSTATUS2      0x08
#define ATA_REG_ACTSTATUS       0x09

// typedefs and structures

// ATA block device
extern const DevBlock_t DevBlockAta;

// Prototypes
int atadevInit(void);
int atadevReset(void);

u08  atadevReadReg(u16 reg);
void atadevWriteReg(u16 reg, u08 data);

int atadevReadData(u08 *buffer, int numBytes);
int atadevWriteData(u08 *buffer, int numBytes);

#endif

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