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/*
* linux/include/asm-ppc/ide.h
*
* Copyright (C) 1994-1996 Linus Torvalds & authors
*/
/*
* This file contains the ppc architecture specific IDE code.
*/
#ifndef __ASMPPC_IDE_H
#define __ASMPPC_IDE_H
#ifdef __KERNEL__
#include <linux/config.h>
#ifndef MAX_HWIFS
#define MAX_HWIFS 4
#endif
#define ide_sti() sti()
typedef unsigned short ide_ioreg_t;
void ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq);
void prep_ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq);
void pmac_ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq);
#if defined(CONFIG_PREP) || defined(CONFIG_CHRP)
static __inline__ int ide_default_irq(ide_ioreg_t base)
{
switch (base) {
case 0x1f0: return 13;
case 0x170: return 13;
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;
}
}
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_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);
}
#define ide_fix_driveid(id) do {} while (0)
#endif /* CONFIG_CHRP || CONFIG_PREP */
#ifdef CONFIG_PMAC
#include <asm/io.h> /* so we can redefine insw/outsw */
typedef unsigned long ide_ioreg_t;
static __inline__ int ide_default_irq(ide_ioreg_t base)
{
return 0;
}
extern __inline__ ide_ioreg_t ide_default_io_base(int index)
{
return index;
}
typedef union {
unsigned all : 8; /* all of the bits together */
struct {
unsigned bit7 : 1; /* always 1 */
unsigned lba : 1; /* using LBA instead of CHS */
unsigned bit5 : 1; /* always 1 */
unsigned unit : 1; /* drive select number, 0/1 */
unsigned head : 4; /* always zeros here */
} b;
} select_t;
#undef SUPPORT_SLOW_DATA_PORTS
#define SUPPORT_SLOW_DATA_PORTS 0
#undef SUPPORT_VLB_SYNC
#define SUPPORT_VLB_SYNC 0
static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
{
return 0;
}
static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name)
{
}
static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent)
{
}
#undef insw
#undef outsw
#define insw(port, buf, ns) ide_insw((port), (buf), (ns))
#define outsw(port, buf, ns) ide_outsw((port), (buf), (ns))
void ide_insw(ide_ioreg_t port, void *buf, int ns);
void ide_outsw(ide_ioreg_t port, void *buf, int ns);
#define ide_fix_driveid(id) do { \
int nh; \
unsigned short *p = (unsigned short *) id; \
for (nh = SECTOR_WORDS * 2; nh != 0; --nh, ++p) \
*p = (*p << 8) + (*p >> 8); \
} while (0)
#endif
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);
}
/*
* The following are not needed for the non-m68k ports
*/
#define ide_ack_intr(base, irq) (1)
#define ide_release_lock(lock) do {} while (0)
#define ide_get_lock(lock, hdlr, data) do {} while (0)
#endif /* __KERNEL__ */
#endif /* __ASMPPC_IDE_H */
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