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- /* $Id: ide.h,v 1.4 1998/05/08 21:05:26 davem Exp $
- *
- * 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 6
- #endif
-
- #define ide__sti() __sti()
-
- struct ide_ops {
- int (*ide_default_irq)(ide_ioreg_t base);
- ide_ioreg_t (*ide_default_io_base)(int index);
- void (*ide_init_hwif_ports)(ide_ioreg_t *p, ide_ioreg_t base, int *irq);
- int (*ide_request_irq)(unsigned int irq, void (*handler)(int, void *,
- struct pt_regs *), unsigned long flags,
- const char *device, void *dev_id);
- void (*ide_free_irq)(unsigned int irq, void *dev_id);
- 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);
- };
-
- extern struct ide_ops *ide_ops;
-
- static __inline__ int ide_default_irq(ide_ioreg_t base)
- {
- return ide_ops->ide_default_irq(base);
- }
-
- static __inline__ ide_ioreg_t ide_default_io_base(int index)
- {
- return ide_ops->ide_default_io_base(index);
- }
-
- static __inline__ void ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base,
- int *irq)
- {
- ide_ops->ide_init_hwif_ports(p, base, irq);
- }
-
- 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 ide_ops->ide_request_irq(irq, handler, flags, device, dev_id);
- }
-
- static __inline__ void ide_free_irq(unsigned int irq, void *dev_id)
- {
- ide_ops->ide_free_irq(irq, dev_id);
- }
-
- static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
- {
- return ide_ops->ide_check_region(from, extent);
- }
-
- static __inline__ void ide_request_region(ide_ioreg_t from,
- unsigned int extent, const char *name)
- {
- ide_ops->ide_request_region(from, extent, name);
- }
-
- static __inline__ void ide_release_region(ide_ioreg_t from,
- unsigned int extent)
- {
- ide_ops->ide_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 */
-