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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* os_linux.h
*
* Home page of code is: http://smartmontools.sourceforge.net
*
* Copyright (C) 2003-4 Bruce Allen <smartmontools-support@lists.sourceforge.net>
*
* Derived from code that was
*
* Written By: Adam Radford <linux@3ware.com>
* Modifications By: Joel Jacobson <linux@3ware.com>
* Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* Brad Strand <linux@3ware.com>
*
* Copyright (C) 1999-2003 3ware Inc.
*
* Kernel compatablity By: Andre Hedrick <andre@suse.com>
* Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* You should have received a copy of the GNU General Public License
* (for example COPYING); if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* This code was originally developed as a Senior Thesis by Michael Cornwell
* at the Concurrent Systems Laboratory (now part of the Storage Systems
* Research Center), Jack Baskin School of Engineering, University of
* California, Santa Cruz. http://ssrc.soe.ucsc.edu/
*
*/
#ifndef OS_LINUX_H_
#define OS_LINUX_H_
#define OS_XXXX_H_CVSID "$Id: os_linux.h,v 1.12 2004/03/25 17:16:13 ballen4705 Exp $\n"
/* Misc defines */
#define TW_IOCTL 0x80
#define TW_ATA_PASSTHRU 0x1e /* Needed for the driver */
#define TW_MAX_SGL_LENGTH 62
/* Scatter gather list entry */
typedef struct TAG_TW_SG_Entry
{
unsigned int address;
unsigned int length;
} TW_SG_Entry;
/* Command header for ATA pass-thru */
// Total size of structure is 528 bytes
typedef struct TAG_TW_Passthru {
struct {
unsigned char opcode:5;
unsigned char sgloff:3;
} byte0;
unsigned char size;
unsigned char request_id;
struct {
unsigned char aport:4;
unsigned char host_id:4;
} byte3;
unsigned char status;
unsigned char flags;
unsigned short param;
unsigned short features;
unsigned short sector_count;
unsigned short sector_num;
unsigned short cylinder_lo;
unsigned short cylinder_hi;
unsigned char drive_head;
unsigned char command;
TW_SG_Entry sg_list[TW_MAX_SGL_LENGTH];
unsigned char padding[12];
} TW_Passthru;
/* Ioctl buffer */
// Note that this defn has changed in kernel tree...
// Total size is 1041 bytes
typedef struct TAG_TW_Ioctl {
int input_length;
int output_length;
unsigned char cdb[16];
unsigned char opcode;
unsigned short table_id;
unsigned char parameter_id;
unsigned char parameter_size_bytes;
unsigned char unit_index;
// Size up to here is 30 bytes
// CHECK ME -- is this RIGHT??
unsigned char input_data[499];
// Reserve lots of extra space for commands that set Sector Count
// register to large values
unsigned char output_data[512];
} TW_Ioctl;
/* Ioctl buffer output */
typedef struct TAG_TW_Output {
// CHECKME - is padding right on machines with 8-byte INTEGERS??
int padding[2];
char output_data[512];
} TW_Output;
// The following definitions are from hdreg.h in the kernel source
// tree. They don't carry any Copyright statements, but I think they
// are primarily from Mark Lord and Andre Hedrick.
typedef unsigned char task_ioreg_t;
typedef struct hd_drive_task_hdr {
task_ioreg_t data;
task_ioreg_t feature;
task_ioreg_t sector_count;
task_ioreg_t sector_number;
task_ioreg_t low_cylinder;
task_ioreg_t high_cylinder;
task_ioreg_t device_head;
task_ioreg_t command;
} task_struct_t;
typedef union ide_reg_valid_s {
unsigned all : 16;
struct {
unsigned data : 1;
unsigned error_feature : 1;
unsigned sector : 1;
unsigned nsector : 1;
unsigned lcyl : 1;
unsigned hcyl : 1;
unsigned select : 1;
unsigned status_command : 1;
unsigned data_hob : 1;
unsigned error_feature_hob : 1;
unsigned sector_hob : 1;
unsigned nsector_hob : 1;
unsigned lcyl_hob : 1;
unsigned hcyl_hob : 1;
unsigned select_hob : 1;
unsigned control_hob : 1;
} b;
} ide_reg_valid_t;
typedef struct ide_task_request_s {
task_ioreg_t io_ports[8];
task_ioreg_t hob_ports[8];
ide_reg_valid_t out_flags;
ide_reg_valid_t in_flags;
int data_phase;
int req_cmd;
unsigned long out_size;
unsigned long in_size;
} ide_task_request_t;
#define TASKFILE_NO_DATA 0x0000
#define TASKFILE_IN 0x0001
#define TASKFILE_OUT 0x0004
#define HDIO_DRIVE_TASK_HDR_SIZE 8*sizeof(task_ioreg_t)
#define IDE_DRIVE_TASK_NO_DATA 0
#define IDE_DRIVE_TASK_IN 2
#define IDE_DRIVE_TASK_OUT 3
#define HDIO_DRIVE_CMD 0x031f
#define HDIO_DRIVE_TASK 0x031e
#define HDIO_DRIVE_TASKFILE 0x031d
#define HDIO_GET_IDENTITY 0x030d
#endif /* OS_LINUX_H_ */
|