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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Linus Nielsen Feltzing
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef ATA_TARGET_H
#define ATA_TARGET_H
/* asm optimised read & write loops */
#define ATA_OPTIMIZED_READING
#define ATA_OPTIMIZED_WRITING
#define ATA_IOBASE 0x20000000
#define ATA_DATA (*((volatile unsigned short*)(ATA_IOBASE + 0x20)))
#define ATA_CONTROL (*((volatile unsigned short*)(ATA_IOBASE + 0x1c)))
#define ATA_ERROR (*((volatile unsigned short*)(ATA_IOBASE + 0x22)))
#define ATA_NSECTOR (*((volatile unsigned short*)(ATA_IOBASE + 0x24)))
#define ATA_SECTOR (*((volatile unsigned short*)(ATA_IOBASE + 0x26)))
#define ATA_LCYL (*((volatile unsigned short*)(ATA_IOBASE + 0x28)))
#define ATA_HCYL (*((volatile unsigned short*)(ATA_IOBASE + 0x2a)))
#define ATA_SELECT (*((volatile unsigned short*)(ATA_IOBASE + 0x2c)))
#define ATA_COMMAND (*((volatile unsigned short*)(ATA_IOBASE + 0x2e)))
#define STATUS_BSY 0x8000
#define STATUS_RDY 0x4000
#define STATUS_DF 0x2000
#define STATUS_DRQ 0x0800
#define STATUS_ERR 0x0100
#define ERROR_ABRT 0x0400
#define ERROR_IDNF 0x1000
#define WRITE_PATTERN1 0xa5
#define WRITE_PATTERN2 0x5a
#define WRITE_PATTERN3 0xaa
#define WRITE_PATTERN4 0x55
#define READ_PATTERN1 0xa500
#define READ_PATTERN2 0x5a00
#define READ_PATTERN3 0xaa00
#define READ_PATTERN4 0x5500
#define READ_PATTERN1_MASK 0xff00
#define READ_PATTERN2_MASK 0xff00
#define READ_PATTERN3_MASK 0xff00
#define READ_PATTERN4_MASK 0xff00
#define SET_REG(reg,val) reg = ((val) << 8)
#define SET_16BITREG(reg,val) reg = (val)
void ata_reset(void);
void ata_enable(bool on);
void ata_device_init(void);
bool ata_is_coldstart(void);
void copy_read_sectors(unsigned char* buf, int wordcount);
void copy_write_sectors(const unsigned char* buf, int wordcount);
#endif
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