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
|
/*
* ARM default IDE host driver
*
* Copyright (C) 2004 Bartlomiej Zolnierkiewicz
* Based on code by: Russell King, Ian Molton and Alexander Schulz.
*
* May be copied or modified under the terms of the GNU General Public License.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <asm/irq.h>
#define DRV_NAME "ide_arm"
#define IDE_ARM_IO 0x1f0
#define IDE_ARM_IRQ IRQ_HARDDISK
static const struct ide_port_info ide_arm_port_info = {
.host_flags = IDE_HFLAG_NO_DMA,
};
static int __init ide_arm_init(void)
{
unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206;
hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
if (!request_region(base, 8, DRV_NAME)) {
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
DRV_NAME, base, base + 7);
return -EBUSY;
}
if (!request_region(ctl, 1, DRV_NAME)) {
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
DRV_NAME, ctl);
release_region(base, 8);
return -EBUSY;
}
memset(&hw, 0, sizeof(hw));
ide_std_init_ports(&hw, base, ctl);
hw.irq = IDE_ARM_IRQ;
hw.chipset = ide_generic;
return ide_host_add(&ide_arm_port_info, hws, NULL);
}
module_init(ide_arm_init);
MODULE_LICENSE("GPL");
|
