src/include/diskimage.h

#ifndef DISKIMAGE_H
#define DISKIMAGE_H

/*
 *  Copyright (C) 2003-2005  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright  
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE   
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *
 *
 *  $Id: diskimage.h,v 1.30 2005/11/13 02:22:01 debug Exp $
 *
 *  Generic disk image functions.  (See diskimage.c for more info.)
 */

#include <stdio.h>
#include <sys/types.h>

#include "misc.h"

/*  Diskimage types:  */
#define DISKIMAGE_SCSI          1
#define DISKIMAGE_IDE           2
#define DISKIMAGE_FLOPPY        3

#define DISKIMAGE_TYPES         { "(NONE)", "SCSI", "IDE", "FLOPPY" }

struct diskimage {
        struct diskimage *next;
        int             type;           /*  DISKIMAGE_SCSI, etc  */
        int             id;             /*  SCSI id  */

        char            *fname;
        FILE            *f;

        int             chs_override;
        int             cylinders;
        int             heads;
        int             sectors_per_track;

        off_t           total_size;
        int             logical_block_size;

        int             writable;
        int             is_a_cdrom;
        int             is_boot_device;

        int             is_a_tape;
        uint64_t        tape_offset;
        int             tape_filenr;
        int             filemark;

        int             rpms;
        int             ncyls;
};


/*  Transfer command, sent from a SCSI controller device to a disk:  */
struct scsi_transfer {
        struct scsi_transfer    *next_free;

        /*  These should be set by the SCSI controller before the call:  */
        unsigned char           *msg_out;
        size_t                  msg_out_len;
        unsigned char           *cmd;
        size_t                  cmd_len;

        /*  data_out_len is set by the SCSI disk, if it needs data_out,
            which is then filled in during a second pass in the controller.  */
        unsigned char           *data_out;
        size_t                  data_out_len;
        size_t                  data_out_offset;

        /*  These should be set by the SCSI (disk) device before returning:  */
        unsigned char           *data_in;
        size_t                  data_in_len;
        unsigned char           *msg_in;
        size_t                  msg_in_len;
        unsigned char           *status;
        size_t                  status_len;
};


struct machine;

struct scsi_transfer *scsi_transfer_alloc(void);
void scsi_transfer_free(struct scsi_transfer *);
void scsi_transfer_allocbuf(size_t *lenp, unsigned char **pp,
        size_t want_len, int clearflag);


int64_t diskimage_getsize(struct machine *machine, int id, int type);
void diskimage_getchs(struct machine *machine, int id, int type,
        int *c, int *h, int *s);
int diskimage_scsicommand(struct cpu *cpu, int id, int type,
        struct scsi_transfer *);
int diskimage_access(struct machine *machine, int id, int type, int writeflag,
        off_t offset, unsigned char *buf, size_t len);
int diskimage_exist(struct machine *machine, int id, int type);
int diskimage_bootdev(struct machine *machine, int *typep);
int diskimage_add(struct machine *machine, char *fname);
int diskimage_getname(struct machine *machine, int id, int type,
        char *buf, size_t bufsize);
int diskimage_is_a_cdrom(struct machine *machine, int id, int type);
int diskimage_is_a_tape(struct machine *machine, int id, int type);
void diskimage_dump_info(struct machine *machine);

/*
 *  SCSI commands: 
 */
#define SCSICMD_TEST_UNIT_READY         0x00    /*  Mandatory  */
#define SCSICMD_REQUEST_SENSE           0x03    /*  Mandatory  */
#define SCSICMD_INQUIRY                 0x12    /*  Mandatory  */

#define SCSICMD_READ                    0x08
#define SCSICMD_READ_10                 0x28
#define SCSICMD_WRITE                   0x0a
#define SCSICMD_WRITE_10                0x2a
#define SCSICMD_MODE_SELECT             0x15
#define SCSICMD_MODE_SENSE              0x1a
#define SCSICMD_START_STOP_UNIT         0x1b
#define SCSICMD_PREVENT_ALLOW_REMOVE    0x1e
#define SCSICMD_MODE_SENSE10            0x5a

#define SCSICMD_SYNCHRONIZE_CACHE       0x35

/*  SCSI block device commands:  */
#define SCSIBLOCKCMD_READ_CAPACITY      0x25

/*  SCSI CD-ROM commands:  */
#define SCSICDROM_READ_SUBCHANNEL       0x42
#define SCSICDROM_READ_TOC              0x43

/*  SCSI tape commands:  */
#define SCSICMD_REWIND                  0x01
#define SCSICMD_READ_BLOCK_LIMITS       0x05
#define SCSICMD_SPACE                   0x11


#endif  /*  DISKIMAGE_H  */
1	#ifndef DISKIMAGE_H
2	#define DISKIMAGE_H
3
4	/*
5	* Copyright (C) 2003-2005 Anders Gavare. All rights reserved.
6	*
7	* Redistribution and use in source and binary forms, with or without
8	* modification, are permitted provided that the following conditions are met:
9	*
10	* 1. Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.
12	* 2. Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.
15	* 3. The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.
17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28	* SUCH DAMAGE.
29	*
30	*
31	* $Id: diskimage.h,v 1.30 2005/11/13 02:22:01 debug Exp $
32	*
33	* Generic disk image functions. (See diskimage.c for more info.)
34	*/
35
36	#include <stdio.h>
37	#include <sys/types.h>
38
39	#include "misc.h"
40
41	/* Diskimage types: */
42	#define DISKIMAGE_SCSI 1
43	#define DISKIMAGE_IDE 2
44	#define DISKIMAGE_FLOPPY 3
45
46	#define DISKIMAGE_TYPES { "(NONE)", "SCSI", "IDE", "FLOPPY" }
47
48	struct diskimage {
49	struct diskimage *next;
50	int type; /* DISKIMAGE_SCSI, etc */
51	int id; /* SCSI id */
52
53	char *fname;
54	FILE *f;
55
56	int chs_override;
57	int cylinders;
58	int heads;
59	int sectors_per_track;
60
61	off_t total_size;
62	int logical_block_size;
63
64	int writable;
65	int is_a_cdrom;
66	int is_boot_device;
67
68	int is_a_tape;
69	uint64_t tape_offset;
70	int tape_filenr;
71	int filemark;
72
73	int rpms;
74	int ncyls;
75	};
76
77
78	/* Transfer command, sent from a SCSI controller device to a disk: */
79	struct scsi_transfer {
80	struct scsi_transfer *next_free;
81
82	/* These should be set by the SCSI controller before the call: */
83	unsigned char *msg_out;
84	size_t msg_out_len;
85	unsigned char *cmd;
86	size_t cmd_len;
87
88	/* data_out_len is set by the SCSI disk, if it needs data_out,
89	which is then filled in during a second pass in the controller. */
90	unsigned char *data_out;
91	size_t data_out_len;
92	size_t data_out_offset;
93
94	/* These should be set by the SCSI (disk) device before returning: */
95	unsigned char *data_in;
96	size_t data_in_len;
97	unsigned char *msg_in;
98	size_t msg_in_len;
99	unsigned char *status;
100	size_t status_len;
101	};
102
103
104	struct machine;
105
106	struct scsi_transfer *scsi_transfer_alloc(void);
107	void scsi_transfer_free(struct scsi_transfer *);
108	void scsi_transfer_allocbuf(size_t lenp, unsigned char *pp,
109	size_t want_len, int clearflag);
110
111
112	int64_t diskimage_getsize(struct machine *machine, int id, int type);
113	void diskimage_getchs(struct machine *machine, int id, int type,
114	int c, int h, int *s);
115	int diskimage_scsicommand(struct cpu *cpu, int id, int type,
116	struct scsi_transfer *);
117	int diskimage_access(struct machine *machine, int id, int type, int writeflag,
118	off_t offset, unsigned char *buf, size_t len);
119	int diskimage_exist(struct machine *machine, int id, int type);
120	int diskimage_bootdev(struct machine machine, int typep);
121	int diskimage_add(struct machine machine, char fname);
122	int diskimage_getname(struct machine *machine, int id, int type,
123	char *buf, size_t bufsize);
124	int diskimage_is_a_cdrom(struct machine *machine, int id, int type);
125	int diskimage_is_a_tape(struct machine *machine, int id, int type);
126	void diskimage_dump_info(struct machine *machine);
127
128	/*
129	* SCSI commands:
130	*/
131	#define SCSICMD_TEST_UNIT_READY 0x00 /* Mandatory */
132	#define SCSICMD_REQUEST_SENSE 0x03 /* Mandatory */
133	#define SCSICMD_INQUIRY 0x12 /* Mandatory */
134
135	#define SCSICMD_READ 0x08
136	#define SCSICMD_READ_10 0x28
137	#define SCSICMD_WRITE 0x0a
138	#define SCSICMD_WRITE_10 0x2a
139	#define SCSICMD_MODE_SELECT 0x15
140	#define SCSICMD_MODE_SENSE 0x1a
141	#define SCSICMD_START_STOP_UNIT 0x1b
142	#define SCSICMD_PREVENT_ALLOW_REMOVE 0x1e
143	#define SCSICMD_MODE_SENSE10 0x5a
144
145	#define SCSICMD_SYNCHRONIZE_CACHE 0x35
146
147	/* SCSI block device commands: */
148	#define SCSIBLOCKCMD_READ_CAPACITY 0x25
149
150	/* SCSI CD-ROM commands: */
151	#define SCSICDROM_READ_SUBCHANNEL 0x42
152	#define SCSICDROM_READ_TOC 0x43
153
154	/* SCSI tape commands: */
155	#define SCSICMD_REWIND 0x01
156	#define SCSICMD_READ_BLOCK_LIMITS 0x05
157	#define SCSICMD_SPACE 0x11
158
159
160	#endif /* DISKIMAGE_H */