2 * linux/include/asm-i386/ide.h
4 * Copyright (C) 1994-1996 Linus Torvalds & authors
8 * This file contains the i386 architecture specific IDE code.
11 #ifndef __ASMi386_IDE_H
12 #define __ASMi386_IDE_H
20 #define ide__sti() __sti()
22 static __inline__
int ide_default_irq(ide_ioreg_t base
)
25 case 0x1f0: return 14;
26 case 0x170: return 15;
27 case 0x1e8: return 11;
28 case 0x168: return 10;
30 case 0x160: return 12;
36 static __inline__ ide_ioreg_t
ide_default_io_base(int index
)
50 static __inline__
void ide_init_hwif_ports(hw_regs_t
*hw
, ide_ioreg_t data_port
, ide_ioreg_t ctrl_port
, int *irq
)
52 ide_ioreg_t reg
= data_port
;
55 for (i
= IDE_DATA_OFFSET
; i
<= IDE_STATUS_OFFSET
; i
++) {
56 hw
->io_ports
[i
] = reg
;
60 hw
->io_ports
[IDE_CONTROL_OFFSET
] = ctrl_port
;
62 hw
->io_ports
[IDE_CONTROL_OFFSET
] = hw
->io_ports
[IDE_DATA_OFFSET
] + 0x206;
68 static __inline__
void ide_init_default_hwifs(void)
70 #ifndef CONFIG_BLK_DEV_IDEPCI
74 for(index
= 0; index
< MAX_HWIFS
; index
++) {
75 ide_init_hwif_ports(&hw
, ide_default_io_base(index
), 0, NULL
);
76 hw
.irq
= ide_default_irq(ide_default_io_base(index
));
77 ide_register_hw(&hw
, NULL
);
79 #endif /* CONFIG_BLK_DEV_IDEPCI */
83 unsigned all
: 8; /* all of the bits together */
85 unsigned head
: 4; /* always zeros here */
86 unsigned unit
: 1; /* drive select number, 0 or 1 */
87 unsigned bit5
: 1; /* always 1 */
88 unsigned lba
: 1; /* using LBA instead of CHS */
89 unsigned bit7
: 1; /* always 1 */
93 #define ide_request_irq(irq,hand,flg,dev,id) request_irq((irq),(hand),(flg),(dev),(id))
94 #define ide_free_irq(irq,dev_id) free_irq((irq), (dev_id))
95 #define ide_check_region(from,extent) check_region((from), (extent))
96 #define ide_request_region(from,extent,name) request_region((from), (extent), (name))
97 #define ide_release_region(from,extent) release_region((from), (extent))
100 * The following are not needed for the non-m68k ports
102 #define ide_ack_intr(hwif) (1)
103 #define ide_fix_driveid(id) do {} while (0)
104 #define ide_release_lock(lock) do {} while (0)
105 #define ide_get_lock(lock, hdlr, data) do {} while (0)
107 #endif /* __KERNEL__ */
109 #endif /* __ASMi386_IDE_H */