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/*
* BK Id: SCCS/s.ide.h 1.16 09/28/01 07:54:24 trini
*/
/*
* 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/sched.h>
#include <asm/processor.h>
#include <asm/mpc8xx.h>
#ifndef MAX_HWIFS
#define MAX_HWIFS 8
#endif
#include <asm/hdreg.h>
#include <linux/config.h>
#include <linux/hdreg.h>
#include <linux/ioport.h>
#include <asm/io.h>
extern void ppc_generic_ide_fix_driveid(struct hd_driveid *id);
struct ide_machdep_calls {
int (*default_irq)(ide_ioreg_t base);
ide_ioreg_t (*default_io_base)(int index);
int (*ide_check_region)(ide_ioreg_t from, unsigned int extent);
void (*ide_request_region)(ide_ioreg_t from,
unsigned int extent,
const char *name);
void (*ide_release_region)(ide_ioreg_t from,
unsigned int extent);
void (*ide_init_hwif)(hw_regs_t *hw,
ide_ioreg_t data_port,
ide_ioreg_t ctrl_port,
int *irq);
};
extern struct ide_machdep_calls ppc_ide_md;
void ppc_generic_ide_fix_driveid(struct hd_driveid *id);
#define ide_fix_driveid(id) ppc_generic_ide_fix_driveid((id))
#undef SUPPORT_SLOW_DATA_PORTS
#define SUPPORT_SLOW_DATA_PORTS 0
#undef SUPPORT_VLB_SYNC
#define SUPPORT_VLB_SYNC 0
#define ide__sti() __sti()
static __inline__ int ide_default_irq(ide_ioreg_t base)
{
if (ppc_ide_md.default_irq)
return ppc_ide_md.default_irq(base);
return 0;
}
static __inline__ ide_ioreg_t ide_default_io_base(int index)
{
if (ppc_ide_md.default_io_base)
return ppc_ide_md.default_io_base(index);
return 0;
}
static __inline__ void ide_init_hwif_ports(hw_regs_t *hw,
ide_ioreg_t data_port,
ide_ioreg_t ctrl_port, int *irq)
{
if (ppc_ide_md.ide_init_hwif != NULL)
ppc_ide_md.ide_init_hwif(hw, data_port, ctrl_port, irq);
}
static __inline__ void ide_init_default_hwifs(void)
{
#ifndef CONFIG_BLK_DEV_IDEPCI
hw_regs_t hw;
int index;
ide_ioreg_t base;
for (index = 0; index < MAX_HWIFS; index++) {
base = ide_default_io_base(index);
if (base == 0)
continue;
ide_init_hwif_ports(&hw, base, 0, NULL);
hw.irq = ide_default_irq(base);
ide_register_hw(&hw, NULL);
}
#endif /* CONFIG_BLK_DEV_IDEPCI */
}
static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
{
if (ppc_ide_md.ide_check_region)
return ppc_ide_md.ide_check_region(from, extent);
return 0;
}
static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name)
{
if (ppc_ide_md.ide_request_region)
ppc_ide_md.ide_request_region(from, extent, name);
}
static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent)
{
if (ppc_ide_md.ide_release_region)
ppc_ide_md.ide_release_region(from, extent);
}
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;
#if !defined(ide_request_irq)
#define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id))
#endif
#if !defined(ide_free_irq)
#define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id))
#endif
/*
* The following are not needed for the non-m68k ports
* unless direct IDE on 8xx
*/
#if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE )
#define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1)
#else
#define ide_ack_intr(hwif) (1)
#endif
#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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