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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
#include <linux/sched.h>
#include <asm/processor.h>
#ifndef MAX_HWIFS
#define MAX_HWIFS 4
#endif
#include <asm/hdreg.h>
#ifdef __KERNEL__
#include <linux/hdreg.h>
#include <linux/ioport.h>
#include <asm/io.h>
extern int pmac_ide_ports_known;
extern ide_ioreg_t pmac_ide_regbase[MAX_HWIFS];
extern int pmac_ide_irq[MAX_HWIFS];
extern void pmac_ide_probe(void);
extern int chrp_ide_ports_known;
extern ide_ioreg_t chrp_ide_regbase[MAX_HWIFS];
extern ide_ioreg_t chrp_idedma_regbase; /* one for both channels */
extern unsigned int chrp_ide_irq;
extern void chrp_ide_probe(void);
struct ide_machdep_calls {
void (*insw)(ide_ioreg_t port, void *buf, int ns);
void (*outsw)(ide_ioreg_t port, void *buf, int ns);
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 (*fix_driveid)(struct hd_driveid *id);
void (*ide_init_hwif)(hw_regs_t *hw,
ide_ioreg_t data_port,
ide_ioreg_t ctrl_port,
int *irq);
int io_base;
};
extern struct ide_machdep_calls ppc_ide_md;
void ide_insw(ide_ioreg_t port, void *buf, int ns);
void ide_outsw(ide_ioreg_t port, void *buf, int ns);
void ppc_generic_ide_fix_driveid(struct hd_driveid *id);
#undef insw
#define insw(port, buf, ns) do { \
ppc_ide_md.insw((port), (buf), (ns)); \
} while (0)
#undef outsw
#define outsw(port, buf, ns) do { \
ppc_ide_md.outsw((port), (buf), (ns)); \
} while (0)
#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);
else
return -1;
}
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);
else
return -1;
}
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)
{
#ifdef __DO_I_NEED_THIS
hw_regs_t hw;
int index;
for(index = 0; index < MAX_HWIFS; index++) {
ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
hw.irq = ide_default_irq(ide_default_io_base(index));
ide_register_hw(&hw, NULL);
}
#endif /* __DO_I_NEED_THIS */
}
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);
else
return -1;
}
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);
}
static __inline__ void ide_fix_driveid (struct hd_driveid *id)
{
if ( ppc_ide_md.fix_driveid )
ppc_ide_md.fix_driveid(id);
}
#if 0 /* inb/outb from io.h is OK now -- paulus */
#undef inb
#define inb(port) in_8((unsigned char *)((port) + ppc_ide_md.io_base))
#undef inb_p
#define inb_p(port) inb(port)
#undef outb
#define outb(val, port) \
out_8((unsigned char *)((port) + ppc_ide_md.io_base), (val) )
#undef outb_p
#define outb_p(val, port) outb(val, port)
#endif
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;
#define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id))
#define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id))
/*
* The following are not needed for the non-m68k ports
*/
#define ide_ack_intr(hwif) (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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