78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id:$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 Marcin Bukat
|
||
|
|
*
|
||
|
|
* 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 - we skip this for now*/
|
||
|
|
#define ATA_OPTIMIZED_READING
|
||
|
|
//#define ATA_OPTIMIZED_WRITING
|
||
|
|
|
||
|
|
#define SWAP_WORDS
|
||
|
|
|
||
|
|
#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 0x80
|
||
|
|
#define STATUS_RDY 0x40
|
||
|
|
#define STATUS_DF 0x20
|
||
|
|
#define STATUS_DRQ 0x08
|
||
|
|
#define STATUS_ERR 0x01
|
||
|
|
|
||
|
|
#define ERROR_ABRT 0x04
|
||
|
|
#define ERROR_IDNF 0x10
|
||
|
|
|
||
|
|
#define WRITE_PATTERN1 0xa5
|
||
|
|
#define WRITE_PATTERN2 0x5a
|
||
|
|
#define WRITE_PATTERN3 0xaa
|
||
|
|
#define WRITE_PATTERN4 0x55
|
||
|
|
|
||
|
|
#define READ_PATTERN1 0xa5
|
||
|
|
#define READ_PATTERN2 0x5a
|
||
|
|
#define READ_PATTERN3 0xaa
|
||
|
|
#define READ_PATTERN4 0x55
|
||
|
|
|
||
|
|
#define READ_PATTERN1_MASK 0xff
|
||
|
|
#define READ_PATTERN2_MASK 0xff
|
||
|
|
#define READ_PATTERN3_MASK 0xff
|
||
|
|
#define READ_PATTERN4_MASK 0xff
|
||
|
|
|
||
|
|
#define SET_REG(reg,val) reg = (val)
|
||
|
|
#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
|