1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* linux/drivers/block/falconide.c -- Atari Falcon IDE Driver
*
* Created 12 Jul 1997 by Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <asm/atarihw.h>
#include <asm/atariints.h>
#include <asm/atari_stdma.h>
/*
* Base of the IDE interface
*/
#define ATA_HD_BASE 0xfff00000
/*
* Offsets from the above base
*/
#define ATA_HD_DATA 0x00
#define ATA_HD_ERROR 0x05 /* see err-bits */
#define ATA_HD_NSECTOR 0x09 /* nr of sectors to read/write */
#define ATA_HD_SECTOR 0x0d /* starting sector */
#define ATA_HD_LCYL 0x11 /* starting cylinder */
#define ATA_HD_HCYL 0x15 /* high byte of starting cyl */
#define ATA_HD_SELECT 0x19 /* 101dhhhh , d=drive, hhhh=head */
#define ATA_HD_STATUS 0x1d /* see status-bits */
#define ATA_HD_CONTROL 0x39
static int __init falconide_offsets[IDE_NR_PORTS] = {
ATA_HD_DATA, ATA_HD_ERROR, ATA_HD_NSECTOR, ATA_HD_SECTOR, ATA_HD_LCYL,
ATA_HD_HCYL, ATA_HD_SELECT, ATA_HD_STATUS, ATA_HD_CONTROL, -1
};
/*
* Probe for a Falcon IDE interface
*/
void __init falconide_init(void)
{
if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) {
hw_regs_t hw;
int index;
ide_setup_ports(&hw, (ide_ioreg_t)ATA_HD_BASE, falconide_offsets,
0, 0, NULL, IRQ_MFP_IDE);
index = ide_register_hw(&hw, NULL);
if (index != -1)
printk("ide%d: Falcon IDE interface\n", index);
}
}
|
