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/*
* linux/include/asm-mips/ide.h
*
* Copyright (C) 1994-1996 Linus Torvalds & authors
*/
/*
* This file contains the MIPS architecture specific IDE code.
*/
#ifndef __ASM_MIPS_IDE_H
#define __ASM_MIPS_IDE_H
#ifdef __KERNEL__
typedef unsigned short ide_ioreg_t;
#ifndef MAX_HWIFS
#define MAX_HWIFS 4
#endif
#define ide_sti() sti()
static __inline__ int ide_default_irq(ide_ioreg_t base)
{
switch (base) {
case 0x1f0: return 14;
case 0x170: return 15;
case 0x1e8: return 11;
case 0x168: return 10;
default:
return 0;
}
}
static __inline__ ide_ioreg_t ide_default_io_base(int index)
{
switch (index) {
case 0: return 0x1f0;
case 1: return 0x170;
case 2: return 0x1e8;
case 3: return 0x168;
default:
return 0;
}
}
static __inline__ void ide_init_hwif_ports (ide_ioreg_t *p, ide_ioreg_t base, int *irq)
{
ide_ioreg_t port = base;
int i = 8;
while (i--)
*p++ = port++;
*p++ = base + 0x206;
if (irq != NULL)
*irq = 0;
}
typedef union {
unsigned all : 8; /* all of the bits together */
struct {
unsigned head : 4; /* always zeros here */
unsigned unit : 1; /* drive select number, 0 or 1 */
unsigned bit5 : 1; /* always 1 */
unsigned lba : 1; /* using LBA instead of CHS */
unsigned bit7 : 1; /* always 1 */
} b;
} select_t;
static __inline__ int ide_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
unsigned long flags, const char *device, void *dev_id)
{
return request_irq(irq, handler, flags, device, dev_id);
}
static __inline__ void ide_free_irq(unsigned int irq, void *dev_id)
{
free_irq(irq, dev_id);
}
static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
{
return check_region(from, extent);
}
static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name)
{
request_region(from, extent, name);
}
static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent)
{
release_region(from, extent);
}
/*
* The following are not needed for the non-m68k ports
*/
static __inline__ int ide_ack_intr (ide_ioreg_t status_port, ide_ioreg_t irq_port)
{
return(1);
}
static __inline__ void ide_fix_driveid(struct hd_driveid *id)
{
}
static __inline__ void ide_release_lock (int *ide_lock)
{
}
static __inline__ void ide_get_lock (int *ide_lock, void (*handler)(int, void *, struct pt_regs *), void *data)
{
}
#endif /* __KERNEL__ */
#endif /* __ASM_MIPS_IDE_H */
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