80f1688423
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14909 a1c6a512-1295-4272-9138-f99709370657
70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 by Karl Kurbjun
|
|
*
|
|
* All files in this archive are subject to the GNU General Public License.
|
|
* See the file COPYING in the source tree root for full license agreement.
|
|
*
|
|
* 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
|
|
|
|
/* Plain C read & write loops */
|
|
#define PREFER_C_READING
|
|
#define PREFER_C_WRITING
|
|
|
|
#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 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
|