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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
|
/*
ChibiOS/HAL - Copyright (C) 2016 Uladzimir Pylinsky aka barthess
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file wdg_lld.h
* @brief WDG Driver subsystem low level driver header template.
*
* @addtogroup WDG
* @{
*/
#ifndef LIB_SCSI_H_
#define LIB_SCSI_H_
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
#define SCSI_CMD_TEST_UNIT_READY 0x00
#define SCSI_CMD_REQUEST_SENSE 0x03
#define SCSI_CMD_INQUIRY 0x12
#define SCSI_CMD_MODE_SENSE_6 0x1A
#define SCSI_CMD_START_STOP_UNIT 0x1B
#define SCSI_CMD_SEND_DIAGNOSTIC 0x1D
#define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E
#define SCSI_CMD_READ_CAPACITY_10 0x25
#define SCSI_CMD_READ_FORMAT_CAPACITIES 0x23
#define SCSI_CMD_READ_10 0x28
#define SCSI_CMD_WRITE_10 0x2A
#define SCSI_CMD_VERIFY_10 0x2F
#define SCSI_SENSE_KEY_GOOD 0x00
#define SCSI_SENSE_KEY_RECOVERED_ERROR 0x01
#define SCSI_SENSE_KEY_NOT_READY 0x02
#define SCSI_SENSE_KEY_MEDIUM_ERROR 0x03
#define SCSI_SENSE_KEY_HARDWARE_ERROR 0x04
#define SCSI_SENSE_KEY_ILLEGAL_REQUEST 0x05
#define SCSI_SENSE_KEY_UNIT_ATTENTION 0x06
#define SCSI_SENSE_KEY_DATA_PROTECT 0x07
#define SCSI_SENSE_KEY_BLANK_CHECK 0x08
#define SCSI_SENSE_KEY_VENDOR_SPECIFIC 0x09
#define SCSI_SENSE_KEY_COPY_ABORTED 0x0A
#define SCSI_SENSE_KEY_ABORTED_COMMAND 0x0B
#define SCSI_SENSE_KEY_VOLUME_OVERFLOW 0x0D
#define SCSI_SENSE_KEY_MISCOMPARE 0x0E
#define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION 0x00
#define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY 0x04
#define SCSI_ASENSE_INVALID_FIELD_IN_CDB 0x24
#define SCSI_ASENSE_NOT_READY_TO_READY_CHANGE 0x28
#define SCSI_ASENSE_WRITE_PROTECTED 0x27
#define SCSI_ASENSE_FORMAT_ERROR 0x31
#define SCSI_ASENSE_INVALID_COMMAND 0x20
#define SCSI_ASENSE_LBA_OUT_OF_RANGE 0x21
#define SCSI_ASENSE_MEDIUM_NOT_PRESENT 0x3A
#define SCSI_ASENSEQ_NO_QUALIFIER 0x00
#define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED 0x01
#define SCSI_ASENSEQ_INIT_COMMAND_REQUIRED 0x02
#define SCSI_ASENSEQ_OPERATION_IN_PROGRESS 0x07
#define SCSI_SUCCESS HAL_SUCCESS
#define SCSI_FAILED HAL_FAILED
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a structure representing an SCSI target.
*/
typedef struct SCSITarget SCSITarget;
/**
* @brief Type of a structure representing an SCSI transport.
*/
typedef struct SCSITransport SCSITransport;
/**
* @brief State of SCSI target.
*/
typedef enum {
SCSI_TRGT_UNINIT = 0,
SCSI_TRGT_STOP,
SCSI_TRGT_READY,
} scsitrgtstate_t;
/**
* @brief Represents SCSI sense data structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint8_t byte[18];
} scsi_sense_response_t;
/**
* @brief Represents SCSI inquiry response structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint8_t peripheral;
uint8_t removable;
uint8_t version;
uint8_t response_data_format;
uint8_t additional_length;
uint8_t sccstp;
uint8_t bqueetc;
uint8_t cmdque;
uint8_t vendorID[8];
uint8_t productID[16];
uint8_t productRev[4];
} scsi_inquiry_response_t;
/**
* @brief Represents SCSI unit serial number inquiry response structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint8_t peripheral;
uint8_t page_code;
uint8_t reserved;
uint8_t page_length;
uint8_t serianNumber[8];
} scsi_unit_serial_number_inquiry_response_t;
/**
* @brief Represents SCSI mode sense (6) request structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint8_t byte[6];
} scsi_mode_sense6_request_t;
/**
* @brief Represents SCSI mode sense (6) response structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR{
uint8_t byte[4];
} scsi_mode_sense6_response_t;
/**
* @brief Represents SCSI read capacity (10) response structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint32_t last_block_addr;
uint32_t block_size;
} scsi_read_capacity10_response_t;
/**
* @brief Represents SCSI read format capacity response structure.
* @details See SCSI specification.
*/
typedef struct PACKED_VAR {
uint8_t header[4];
uint8_t blocknum[4];
uint8_t blocklen[4];
} scsi_read_format_capacities_response_t;
/**
* @brief Type of a SCSI transport transmit call.
*
* @param[in] usbp pointer to the @p SCSITransport object
* @param[in] data pointer to payload buffer
* @param[in] len payload length
*/
typedef uint32_t (*scsi_transport_transmit_t)(const SCSITransport *transport,
const uint8_t *data, size_t len);
/**
* @brief Type of a SCSI transport transmit call.
*
* @param[in] usbp pointer to the @p SCSITransport object
* @param[out] data pointer to receive buffer
* @param[in] len number of bytes to be received
*/
typedef uint32_t (*scsi_transport_receive_t)(const SCSITransport *transport,
uint8_t *data, size_t len);
/**
* @brief SCSI transport structure.
*/
struct SCSITransport {
/**
* @brief Transmit call provided by lower level driver.
*/
scsi_transport_transmit_t transmit;
/**
* @brief Receive call provided by lower level driver.
*/
scsi_transport_receive_t receive;
/**
* @brief Transport handler provided by lower level driver.
*/
void *handler;
};
/**
* @brief SCSI target config structure.
*/
typedef struct {
/**
* @brief Pointer to @p SCSITransport object.
*/
const SCSITransport *transport;
/**
* @brief Pointer to @p BaseBlockDevice object.
*/
BaseBlockDevice *blkdev;
/**
* @brief Pointer to data buffer for single block.
*/
uint8_t *blkbuf;
/**
* @brief Pointer to SCSI inquiry response object.
*/
const scsi_inquiry_response_t *inquiry_response;
/**
* @brief Pointer to SCSI unit serial number inquiry response object.
*/
const scsi_unit_serial_number_inquiry_response_t *unit_serial_number_inquiry_response;
} SCSITargetConfig;
/**
*
*/
struct SCSITarget {
/**
* @brief Pointer to @p SCSITargetConfig object.
*/
const SCSITargetConfig *config;
/**
* @brief Target state.
*/
scsitrgtstate_t state;
/**
* @brief SCSI sense response structure.
*/
scsi_sense_response_t sense;
/**
* @brief SCSI mode sense (6) response structure.
*/
scsi_mode_sense6_response_t mode_sense;
/**
* @brief Residue bytes.
*/
uint32_t residue;
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void scsiObjectInit(SCSITarget *scsip);
void scsiStart(SCSITarget *scsip, const SCSITargetConfig *config);
void scsiStop(SCSITarget *scsip);
bool scsiExecCmd(SCSITarget *scsip, const uint8_t *cmd);
uint32_t scsiResidue(const SCSITarget *scsip);
#ifdef __cplusplus
}
#endif
#endif /* LIB_SCSI_H_ */
/** @} */
|
