79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
/*
|
|
* linux/include/asm-i386/ide.h
|
|
*
|
|
* Copyright (C) 1994-1996 Linus Torvalds & authors
|
|
*/
|
|
|
|
/*
|
|
* This file contains the i386 architecture specific IDE code.
|
|
*/
|
|
|
|
#ifndef __ASMi386_IDE_H
|
|
#define __ASMi386_IDE_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
|
|
#ifndef MAX_HWIFS
|
|
# ifdef CONFIG_BLK_DEV_IDEPCI
|
|
#define MAX_HWIFS 10
|
|
# else
|
|
#define MAX_HWIFS 6
|
|
# endif
|
|
#endif
|
|
|
|
#define IDE_ARCH_OBSOLETE_DEFAULTS
|
|
|
|
static __inline__ int ide_default_irq(unsigned long base)
|
|
{
|
|
switch (base) {
|
|
case 0x1f0: return 14;
|
|
case 0x170: return 15;
|
|
case 0x1e8: return 11;
|
|
case 0x168: return 10;
|
|
case 0x1e0: return 8;
|
|
case 0x160: return 12;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static __inline__ unsigned long ide_default_io_base(int index)
|
|
{
|
|
/*
|
|
* If PCI is present then it is not safe to poke around
|
|
* the other legacy IDE ports. Only 0x1f0 and 0x170 are
|
|
* defined compatibility mode ports for PCI. A user can
|
|
* override this using ide= but we must default safe.
|
|
*/
|
|
if (pci_find_device(PCI_ANY_ID, PCI_ANY_ID, NULL) == NULL) {
|
|
switch(index) {
|
|
case 2: return 0x1e8;
|
|
case 3: return 0x168;
|
|
case 4: return 0x1e0;
|
|
case 5: return 0x160;
|
|
}
|
|
}
|
|
switch (index) {
|
|
case 0: return 0x1f0;
|
|
case 1: return 0x170;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
#define IDE_ARCH_OBSOLETE_INIT
|
|
#define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
|
|
|
|
#ifdef CONFIG_BLK_DEV_IDEPCI
|
|
#define ide_init_default_irq(base) (0)
|
|
#else
|
|
#define ide_init_default_irq(base) ide_default_irq(base)
|
|
#endif
|
|
|
|
#include <asm-generic/ide_iops.h>
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ASMi386_IDE_H */
|