xref: /openbmc/linux/drivers/scsi/aic7xxx/aiclib.h (revision 588b48ca)
1 /*
2  * Largely written by Julian Elischer (julian@tfs.com)
3  * for TRW Financial Systems.
4  *
5  * TRW Financial Systems, in accordance with their agreement with Carnegie
6  * Mellon University, makes this software available to CMU to distribute
7  * or use in any manner that they see fit as long as this message is kept with
8  * the software. For this reason TFS also grants any other persons or
9  * organisations permission to use or modify this software.
10  *
11  * TFS supplies this software to be publicly redistributed
12  * on the understanding that TFS is not responsible for the correct
13  * functioning of this software in any circumstances.
14  *
15  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
16  *
17  * $FreeBSD: src/sys/cam/scsi/scsi_all.h,v 1.21 2002/10/08 17:12:44 ken Exp $
18  *
19  * Copyright (c) 2003 Adaptec Inc.
20  * All rights reserved.
21  *
22  * Redistribution and use in source and binary forms, with or without
23  * modification, are permitted provided that the following conditions
24  * are met:
25  * 1. Redistributions of source code must retain the above copyright
26  *    notice, this list of conditions, and the following disclaimer,
27  *    without modification.
28  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
29  *    substantially similar to the "NO WARRANTY" disclaimer below
30  *    ("Disclaimer") and any redistribution must be conditioned upon
31  *    including a substantially similar Disclaimer requirement for further
32  *    binary redistribution.
33  * 3. Neither the names of the above-listed copyright holders nor the names
34  *    of any contributors may be used to endorse or promote products derived
35  *    from this software without specific prior written permission.
36  *
37  * Alternatively, this software may be distributed under the terms of the
38  * GNU General Public License ("GPL") version 2 as published by the Free
39  * Software Foundation.
40  *
41  * NO WARRANTY
42  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
45  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
51  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
52  * POSSIBILITY OF SUCH DAMAGES.
53  *
54  * $Id$
55  */
56 
57 #ifndef	_AICLIB_H
58 #define _AICLIB_H
59 
60 struct scsi_sense
61 {
62 	uint8_t opcode;
63 	uint8_t byte2;
64 	uint8_t unused[2];
65 	uint8_t length;
66 	uint8_t control;
67 };
68 
69 #define		SCSI_REV_0		0
70 #define		SCSI_REV_CCS		1
71 #define		SCSI_REV_2		2
72 #define		SCSI_REV_SPC		3
73 #define		SCSI_REV_SPC2		4
74 
75 struct scsi_sense_data
76 {
77 	uint8_t error_code;
78 #define	SSD_ERRCODE			0x7F
79 #define		SSD_CURRENT_ERROR	0x70
80 #define		SSD_DEFERRED_ERROR	0x71
81 #define	SSD_ERRCODE_VALID	0x80
82 	uint8_t segment;
83 	uint8_t flags;
84 #define	SSD_KEY				0x0F
85 #define		SSD_KEY_NO_SENSE	0x00
86 #define		SSD_KEY_RECOVERED_ERROR	0x01
87 #define		SSD_KEY_NOT_READY	0x02
88 #define		SSD_KEY_MEDIUM_ERROR	0x03
89 #define		SSD_KEY_HARDWARE_ERROR	0x04
90 #define		SSD_KEY_ILLEGAL_REQUEST	0x05
91 #define		SSD_KEY_UNIT_ATTENTION	0x06
92 #define		SSD_KEY_DATA_PROTECT	0x07
93 #define		SSD_KEY_BLANK_CHECK	0x08
94 #define		SSD_KEY_Vendor_Specific	0x09
95 #define		SSD_KEY_COPY_ABORTED	0x0a
96 #define		SSD_KEY_ABORTED_COMMAND	0x0b
97 #define		SSD_KEY_EQUAL		0x0c
98 #define		SSD_KEY_VOLUME_OVERFLOW	0x0d
99 #define		SSD_KEY_MISCOMPARE	0x0e
100 #define		SSD_KEY_RESERVED	0x0f
101 #define	SSD_ILI		0x20
102 #define	SSD_EOM		0x40
103 #define	SSD_FILEMARK	0x80
104 	uint8_t info[4];
105 	uint8_t extra_len;
106 	uint8_t cmd_spec_info[4];
107 	uint8_t add_sense_code;
108 	uint8_t add_sense_code_qual;
109 	uint8_t fru;
110 	uint8_t sense_key_spec[3];
111 #define	SSD_SCS_VALID		0x80
112 #define SSD_FIELDPTR_CMD	0x40
113 #define SSD_BITPTR_VALID	0x08
114 #define SSD_BITPTR_VALUE	0x07
115 #define SSD_MIN_SIZE 18
116 	uint8_t extra_bytes[14];
117 #define SSD_FULL_SIZE sizeof(struct scsi_sense_data)
118 };
119 
120 /*
121  * Status Byte
122  */
123 #define	SCSI_STATUS_OK			0x00
124 #define	SCSI_STATUS_CHECK_COND		0x02
125 #define	SCSI_STATUS_COND_MET		0x04
126 #define	SCSI_STATUS_BUSY		0x08
127 #define SCSI_STATUS_INTERMED		0x10
128 #define SCSI_STATUS_INTERMED_COND_MET	0x14
129 #define SCSI_STATUS_RESERV_CONFLICT	0x18
130 #define SCSI_STATUS_CMD_TERMINATED	0x22	/* Obsolete in SAM-2 */
131 #define SCSI_STATUS_QUEUE_FULL		0x28
132 #define SCSI_STATUS_ACA_ACTIVE		0x30
133 #define SCSI_STATUS_TASK_ABORTED	0x40
134 
135 /************************* Large Disk Handling ********************************/
136 static inline int
137 aic_sector_div(sector_t capacity, int heads, int sectors)
138 {
139 	/* ugly, ugly sector_div calling convention.. */
140 	sector_div(capacity, (heads * sectors));
141 	return (int)capacity;
142 }
143 
144 static inline uint32_t
145 scsi_4btoul(uint8_t *bytes)
146 {
147 	uint32_t rv;
148 
149 	rv = (bytes[0] << 24) |
150 	     (bytes[1] << 16) |
151 	     (bytes[2] << 8) |
152 	     bytes[3];
153 	return (rv);
154 }
155 
156 /* Macros for generating the elements of the PCI ID tables. */
157 
158 #define GETID(v, s) (unsigned)(((v) >> (s)) & 0xFFFF ?: PCI_ANY_ID)
159 
160 #define ID_C(x, c)						\
161 {								\
162 	GETID(x,32), GETID(x,48), GETID(x,0), GETID(x,16),	\
163 	(c) << 8, 0xFFFF00, 0					\
164 }
165 
166 #define ID2C(x)                          \
167 	ID_C(x, PCI_CLASS_STORAGE_SCSI), \
168 	ID_C(x, PCI_CLASS_STORAGE_RAID)
169 
170 #define IDIROC(x)  ((x) | ~ID_ALL_IROC_MASK)
171 
172 /* Generate IDs for all 16 possibilites.
173  * The argument has already masked out
174  * the 4 least significant bits of the device id.
175  * (e.g., mask: ID_9005_GENERIC_MASK).
176  */
177 #define ID16(x)                          \
178 	ID(x),                           \
179 	ID((x) | 0x0001000000000000ull), \
180 	ID((x) | 0x0002000000000000ull), \
181 	ID((x) | 0x0003000000000000ull), \
182 	ID((x) | 0x0004000000000000ull), \
183 	ID((x) | 0x0005000000000000ull), \
184 	ID((x) | 0x0006000000000000ull), \
185 	ID((x) | 0x0007000000000000ull), \
186 	ID((x) | 0x0008000000000000ull), \
187 	ID((x) | 0x0009000000000000ull), \
188 	ID((x) | 0x000A000000000000ull), \
189 	ID((x) | 0x000B000000000000ull), \
190 	ID((x) | 0x000C000000000000ull), \
191 	ID((x) | 0x000D000000000000ull), \
192 	ID((x) | 0x000E000000000000ull), \
193 	ID((x) | 0x000F000000000000ull)
194 
195 #endif /*_AICLIB_H */
196