62321ed0bd
There's no point retrying these requests for five seconds, the sector number isn't going to get any more valid. It interferes with being able to detect broken drives like the 5.5G 80GB iPod's. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25525 a1c6a512-1295-4272-9138-f99709370657
82 lines
3 KiB
C
82 lines
3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 by Karl Kurbjun
|
|
*
|
|
* 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
|
|
|
|
#if 0
|
|
/* Plain C read & write loops */
|
|
#define PREFER_C_READING
|
|
#define PREFER_C_WRITING
|
|
#else
|
|
/* ASM optimized reading and writing */
|
|
#define ATA_OPTIMIZED_READING
|
|
#define ATA_OPTIMIZED_WRITING
|
|
|
|
void copy_read_sectors(const unsigned char* buf, int wordcount);
|
|
void copy_write_sectors(const unsigned char* buf, int wordcount);
|
|
#endif
|
|
|
|
#define ATA_IOBASE 0x50000000
|
|
#define REGISTER_OFFSET (ATA_IOBASE+0x00400000) /* A21 = High */
|
|
#define CONTROL_OFFSET (ATA_IOBASE+0x00800000) /* A22 = High */
|
|
#define IDE_SHIFT 17
|
|
#define ATA_DATA (*((volatile unsigned short*)(REGISTER_OFFSET + (0x00 << IDE_SHIFT))))
|
|
#define ATA_ERROR (*((volatile unsigned char*)(REGISTER_OFFSET + (0x01 << IDE_SHIFT))))
|
|
#define ATA_NSECTOR (*((volatile unsigned char*)(REGISTER_OFFSET + (0x02 << IDE_SHIFT))))
|
|
#define ATA_SECTOR (*((volatile unsigned char*)(REGISTER_OFFSET + (0x03 << IDE_SHIFT))))
|
|
#define ATA_LCYL (*((volatile unsigned char*)(REGISTER_OFFSET + (0x04 << IDE_SHIFT))))
|
|
#define ATA_HCYL (*((volatile unsigned char*)(REGISTER_OFFSET + (0x05 << IDE_SHIFT))))
|
|
#define ATA_SELECT (*((volatile unsigned char*)(REGISTER_OFFSET + (0x06 << IDE_SHIFT))))
|
|
#define ATA_COMMAND (*((volatile unsigned char*)(REGISTER_OFFSET + (0x07 << IDE_SHIFT))))
|
|
#define ATA_CONTROL (*((volatile unsigned char*)(CONTROL_OFFSET + (0x06 << IDE_SHIFT))))
|
|
|
|
#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_device_init(void);
|
|
bool ata_is_coldstart(void);
|
|
|
|
#endif
|