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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
#ifndef _LINUX_HDREG_H
#define _LINUX_HDREG_H
/*
* This file contains some defines for the AT-hd-controller.
* Various sources. Check out some definitions (see comments with
* a ques).
*/
/* Hd controller regs. Ref: IBM AT Bios-listing */
/* For a second IDE interface, xor all addresses with 0x80 */
#define HD_DATA 0x1f0 /* _CTL when writing */
#define HD_ERROR 0x1f1 /* see err-bits */
#define HD_NSECTOR 0x1f2 /* nr of sectors to read/write */
#define HD_SECTOR 0x1f3 /* starting sector */
#define HD_LCYL 0x1f4 /* starting cylinder */
#define HD_HCYL 0x1f5 /* high byte of starting cyl */
#define HD_CURRENT 0x1f6 /* 101dhhhh , d=drive, hhhh=head */
#define HD_STATUS 0x1f7 /* see status-bits */
#define HD_FEATURE HD_ERROR /* same io address, read=error, write=feature */
#define HD_PRECOMP HD_FEATURE /* obsolete use of this port - predates IDE */
#define HD_COMMAND HD_STATUS /* same io address, read=status, write=cmd */
#define HD_CMD 0x3f6 /* used for resets */
#define HD_ALTSTATUS 0x3f6 /* same as HD_STATUS but doesn't clear irq */
/* Bits of HD_STATUS */
#define ERR_STAT 0x01
#define INDEX_STAT 0x02
#define ECC_STAT 0x04 /* Corrected error */
#define DRQ_STAT 0x08
#define SEEK_STAT 0x10
#define WRERR_STAT 0x20
#define READY_STAT 0x40
#define BUSY_STAT 0x80
/* Values for HD_COMMAND */
#define WIN_RESTORE 0x10
#define WIN_READ 0x20
#define WIN_WRITE 0x30
#define WIN_VERIFY 0x40
#define WIN_FORMAT 0x50
#define WIN_INIT 0x60
#define WIN_SEEK 0x70
#define WIN_DIAGNOSE 0x90
#define WIN_SPECIFY 0x91
#define WIN_SETIDLE 0x97
#define WIN_PIDENTIFY 0xA1 /* identify ATA-PI device */
#define WIN_MULTREAD 0xC4 /* read multiple sectors */
#define WIN_MULTWRITE 0xC5 /* write multiple sectors */
#define WIN_SETMULT 0xC6 /* enable read multiple */
#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
#define WIN_SETFEATURES 0xEF /* set special drive features */
/* Bits for HD_ERROR */
#define MARK_ERR 0x01 /* Bad address mark */
#define TRK0_ERR 0x02 /* couldn't find track 0 */
#define ABRT_ERR 0x04 /* Command aborted */
#define ID_ERR 0x10 /* ID field not found */
#define ECC_ERR 0x40 /* Uncorrectable ECC error */
#define BBD_ERR 0x80 /* block marked bad */
struct hd_geometry {
unsigned char heads;
unsigned char sectors;
unsigned short cylinders;
unsigned long start;
};
/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x30n/0x31n */
#define HDIO_GETGEO 0x301 /* get device geometry */
#define HDIO_REQ HDIO_GETGEO /* obsolete, use HDIO_GETGEO */
#define HDIO_GET_UNMASKINTR 0x302 /* get current unmask setting */
#define HDIO_SETUNMASKINTR 0x303 /* obsolete */
#define HDIO_GET_MULTCOUNT 0x304 /* get current IDE blockmode setting */
#define HDIO_SETMULTCOUNT 0x305 /* obsolete */
#define HDIO_GET_IDENTITY 0x307 /* get IDE identification info */
/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x32n/0x33n */
#define HDIO_SET_MULTCOUNT 0x321 /* set IDE blockmode */
#define HDIO_SET_UNMASKINTR 0x322 /* permit other irqs during I/O */
#define HDIO_SET_KEEPSETTINGS 0x323 /* keep ioctl settings on reset */
#define HDIO_SET_XFERMODE 0x324 /* set IDE transfer mode */
/* structure returned by HDIO_GET_IDENTITY, as per ANSI ATA2 rev.2f spec */
struct hd_driveid {
unsigned short config; /* lots of obsolete bit flags */
unsigned short cyls; /* "physical" cyls */
unsigned short reserved2; /* reserved (word 2) */
unsigned short heads; /* "physical" heads */
unsigned short track_bytes; /* unformatted bytes per track */
unsigned short sector_bytes; /* unformatted bytes per sector */
unsigned short sectors; /* "physical" sectors per track */
unsigned short vendor0; /* vendor unique */
unsigned short vendor1; /* vendor unique */
unsigned short vendor2; /* vendor unique */
unsigned char serial_no[20]; /* 0 = not_specified */
unsigned short buf_type;
unsigned short buf_size; /* 512 byte increments; 0 = not_specified */
unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */
unsigned char fw_rev[8]; /* 0 = not_specified */
unsigned char model[40]; /* 0 = not_specified */
unsigned char max_multsect; /* 0=not_implemented */
unsigned char vendor3; /* vendor unique */
unsigned short dword_io; /* 0=not_implemented; 1=implemented */
unsigned char vendor4; /* vendor unique */
unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/
unsigned short reserved50; /* reserved (word 50) */
unsigned char vendor5; /* vendor unique */
unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */
unsigned char vendor6; /* vendor unique */
unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */
unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */
unsigned short cur_cyls; /* logical cylinders */
unsigned short cur_heads; /* logical heads */
unsigned short cur_sectors; /* logical sectors per track */
unsigned short cur_capacity0; /* logical total sectors on drive */
unsigned short cur_capacity1; /* (2 words, misaligned int) */
unsigned char multsect; /* current multiple sector count */
unsigned char multsect_valid; /* when (bit0==1) multsect is ok */
unsigned int lba_capacity; /* total number of sectors */
unsigned short dma_1word; /* single-word dma info */
unsigned short dma_mword; /* multiple-word dma info */
unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */
unsigned short eide_dma_min; /* min mword dma cycle time (ns) */
unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */
unsigned short eide_pio; /* min cycle time (ns), no IORDY */
unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */
unsigned short reserved69; /* reserved (word 69) */
unsigned short reserved70; /* reserved (word 70) */
/* unsigned short reservedxx[57];*/ /* reserved (words 71-127) */
/* unsigned short vendor7 [32];*/ /* vendor unique (words 128-159) */
/* unsigned short reservedyy[96];*/ /* reserved (words 160-255) */
};
#endif
|
