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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* $Id: scsiinline.h $ */
/** @file
* VirtualBox: SCSI inline helpers used by devices, drivers, etc.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef VBOX_INCLUDED_scsiinline_h
#define VBOX_INCLUDED_scsiinline_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/stdint.h>
/** @defgroup grp_scsi_inline The SCSI inline helpers
* @{
*/
/**
* Converts a given 16bit value to big endian and stores it in the given buffer.
*
* @param pbBuf The buffer to store the value into.
* @param u16Val The value to store.
*/
DECLINLINE(void) scsiH2BE_U16(uint8_t *pbBuf, uint16_t u16Val)
{
pbBuf[0] = u16Val >> 8;
pbBuf[1] = u16Val;
}
/**
* Converts a given 24bit value to big endian and stores it in the given buffer.
*
* @param pbBuf The buffer to store the value into.
* @param u32Val The value to store.
*/
DECLINLINE(void) scsiH2BE_U24(uint8_t *pbBuf, uint32_t u32Val)
{
pbBuf[0] = u32Val >> 16;
pbBuf[1] = u32Val >> 8;
pbBuf[2] = u32Val;
}
/**
* Converts a given 32bit value to big endian and stores it in the given buffer.
*
* @param pbBuf The buffer to store the value into.
* @param u32Val The value to store.
*/
DECLINLINE(void) scsiH2BE_U32(uint8_t *pbBuf, uint32_t u32Val)
{
pbBuf[0] = u32Val >> 24;
pbBuf[1] = u32Val >> 16;
pbBuf[2] = u32Val >> 8;
pbBuf[3] = u32Val;
}
/**
* Converts a given 64bit value to big endian and stores it in the given buffer.
*
* @param pbBuf The buffer to store the value into.
* @param u64Val The value to store.
*/
DECLINLINE(void) scsiH2BE_U64(uint8_t *pbBuf, uint64_t u64Val)
{
pbBuf[0] = u64Val >> 56;
pbBuf[1] = u64Val >> 48;
pbBuf[2] = u64Val >> 40;
pbBuf[3] = u64Val >> 32;
pbBuf[4] = u64Val >> 24;
pbBuf[5] = u64Val >> 16;
pbBuf[6] = u64Val >> 8;
pbBuf[7] = u64Val;
}
/**
* Returns a 16bit value read from the given buffer converted to host endianess.
*
* @returns The converted 16bit value.
* @param pbBuf The buffer to read the value from.
*/
DECLINLINE(uint16_t) scsiBE2H_U16(const uint8_t *pbBuf)
{
return (pbBuf[0] << 8) | pbBuf[1];
}
/**
* Returns a 24bit value read from the given buffer converted to host endianess.
*
* @returns The converted 24bit value as a 32bit unsigned integer.
* @param pbBuf The buffer to read the value from.
*/
DECLINLINE(uint32_t) scsiBE2H_U24(const uint8_t *pbBuf)
{
return (pbBuf[0] << 16) | (pbBuf[1] << 8) | pbBuf[2];
}
/**
* Returns a 32bit value read from the given buffer converted to host endianess.
*
* @returns The converted 32bit value.
* @param pbBuf The buffer to read the value from.
*/
DECLINLINE(uint32_t) scsiBE2H_U32(const uint8_t *pbBuf)
{
return (pbBuf[0] << 24) | (pbBuf[1] << 16) | (pbBuf[2] << 8) | pbBuf[3];
}
/**
* Returns a 64bit value read from the given buffer converted to host endianess.
*
* @returns The converted 64bit value.
* @param pbBuf The buffer to read the value from.
*/
DECLINLINE(uint64_t) scsiBE2H_U64(const uint8_t *pbBuf)
{
return ((uint64_t)pbBuf[0] << 56)
| ((uint64_t)pbBuf[1] << 48)
| ((uint64_t)pbBuf[2] << 40)
| ((uint64_t)pbBuf[3] << 32)
| ((uint64_t)pbBuf[4] << 24)
| ((uint64_t)pbBuf[5] << 16)
| ((uint64_t)pbBuf[6] << 8)
| (uint64_t)pbBuf[7];
}
/**
* Converts the given LBA number to the MSF (Minutes:Seconds:Frames) format
* and stores it in the given buffer.
*
* @param pbBuf The buffer to store the value into.
* @param iLBA The LBA to convert.
*/
DECLINLINE(void) scsiLBA2MSF(uint8_t *pbBuf, uint32_t iLBA)
{
iLBA += 150;
pbBuf[0] = (iLBA / 75) / 60;
pbBuf[1] = (iLBA / 75) % 60;
pbBuf[2] = iLBA % 75;
}
/**
* Converts a MSF formatted address value read from the given buffer
* to an LBA number.
*
* @returns The LBA number.
* @param pbBuf The buffer to read the MSF formatted address
* from.
*/
DECLINLINE(uint32_t) scsiMSF2LBA(const uint8_t *pbBuf)
{
return (pbBuf[0] * 60 + pbBuf[1]) * 75 + pbBuf[2] - 150;
}
/**
* Copies a given string to the given destination padding all unused space
* in the destination with spaces.
*
* @param pbDst Where to store the string padded with spaces.
* @param pbSrc The string to copy.
* @param cbSize Size of the destination buffer.
*/
DECLINLINE(void) scsiPadStr(uint8_t *pbDst, const char *pbSrc, uint32_t cbSize)
{
uint32_t i;
for (i = 0; i < cbSize; i++)
{
if (*pbSrc)
pbDst[i] = *pbSrc++;
else
pbDst[i] = ' ';
}
}
/**
* Copies a given string to the given destination padding all unused space
* in the destination with spaces.
*
* @param pbDst Where to store the string padded with spaces.
* @param pbSrc The string to copy.
* @param cbSize Size of the destination buffer.
*/
DECLINLINE(void) scsiPadStrS(int8_t *pbDst, const char *pbSrc, uint32_t cbSize)
{
uint32_t i;
for (i = 0; i < cbSize; i++)
{
if (*pbSrc)
pbDst[i] = *pbSrc++;
else
pbDst[i] = ' ';
}
}
/** @} */
#endif /* !VBOX_INCLUDED_scsiinline_h */
|
