home *** CD-ROM | disk | FTP | other *** search
- /*
- * linux/include/asm-alpha/ide.h
- *
- * Copyright (C) 1994-1996 Linus Torvalds & authors
- */
-
- /*
- * This file contains the alpha architecture specific IDE code.
- */
-
- #ifndef __ASMalpha_IDE_H
- #define __ASMalpha_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 /* __ASMalpha_IDE_H */
-