1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/* $Id: ide.h,v 1.3 1998/05/07 03:02:49 ralf 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 */
|
