9339be1279
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28950 a1c6a512-1295-4272-9138-f99709370657
52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef ATA_TARGET_H
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#define ATA_TARGET_H
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/* asm optimised read & write loops */
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#define ATA_OPTIMIZED_READING
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#define ATA_OPTIMIZED_WRITING
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#define ATA_IOBASE 0x20000000
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#define ATA_DATA (*((volatile unsigned short*)(ATA_IOBASE + 0x20)))
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#define ATA_CONTROL (*((volatile unsigned short*)(ATA_IOBASE + 0x1c)))
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#define ATA_ERROR (*((volatile unsigned short*)(ATA_IOBASE + 0x22)))
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#define ATA_NSECTOR (*((volatile unsigned short*)(ATA_IOBASE + 0x24)))
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#define ATA_SECTOR (*((volatile unsigned short*)(ATA_IOBASE + 0x26)))
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#define ATA_LCYL (*((volatile unsigned short*)(ATA_IOBASE + 0x28)))
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#define ATA_HCYL (*((volatile unsigned short*)(ATA_IOBASE + 0x2a)))
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#define ATA_SELECT (*((volatile unsigned short*)(ATA_IOBASE + 0x2c)))
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#define ATA_COMMAND (*((volatile unsigned short*)(ATA_IOBASE + 0x2e)))
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#define ATA_OUT8(reg,val) reg = ((val) << 8)
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#define ATA_OUT16(reg,val) reg = swap16(val)
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#define ATA_IN8(reg) ((reg) >> 8)
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#define ATA_IN16(reg) (swap16(reg))
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void ata_reset(void);
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void ata_enable(bool on);
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void ata_device_init(void);
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bool ata_is_coldstart(void);
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void copy_read_sectors(unsigned char* buf, int wordcount);
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void copy_write_sectors(const unsigned char* buf, int wordcount);
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#endif
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