/[gxemul]/trunk/src/include/diskimage.h
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Contents of /trunk/src/include/diskimage.h

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Revision 4 - (show annotations)
Mon Oct 8 16:18:00 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 4573 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.707 2005/04/27 16:37:33 debug Exp $
20050408	Some minor updates to the wdc. Linux now doesn't complain
		anymore if a disk is non-present.
20050409	Various minor fixes (a bintrans bug, and some other things).
		The wdc seems to work with Playstation2 emulation, but there
		is a _long_ annoying delay when disks are detected.
		Fixing a really important bintrans bug (when devices and RAM
		are mixed within 4KB pages), which was triggered with
		NetBSD/playstation2 kernels.
20050410	Adding a dummy dev_ps2_ether (just so that NetBSD doesn't
		complain as much during bootup).
		Symbols starting with '$' are now ignored.
		Renaming dev_ps2_ohci.c to dev_ohci.c, etc.
20050411	Moving the bintrans-cache-isolation check from cpu_mips.c to
		cpu_mips_coproc.c. (I thought this would give a speedup, but
		it's not noticable.)
		Better playstation2 sbus interrupt code.
		Skip ahead many ticks if the count register is read manually.
		(This increases the speed of delay-loops that simply read
		the count register.)
20050412	Updates to the playstation2 timer/interrupt code.
		Some other minor updates.
20050413	NetBSD/cobalt runs from a disk image :-) including userland;
		updating the documentation on how to install NetBSD/cobalt
		using NetBSD/pmax (!).
		Some minor bintrans updates (no real speed improvement) and
		other minor updates (playstation2 now uses the -o options).
20050414	Adding a dummy x86 (and AMD64) mode.
20050415	Adding some (32-bit and 16-bit) x86 instructions.
		Adding some initial support for non-SCSI, non-IDE floppy
		images. (The x86 mode can boot from these, more or less.)
		Moving the devices/ and include/ directories to src/devices/
		and src/include/, respectively.
20050416	Continuing on the x86 stuff. (Adding pc_bios.c and some simple
		support for software interrupts in 16-bit mode.)
20050417	Ripping out most of the x86 instruction decoding stuff, trying
		to rewrite it in a cleaner way.
		Disabling some of the least working CPU families in the
		configure script (sparc, x86, alpha, hppa), so that they are
		not enabled by default.
20050418	Trying to fix the bug which caused problems when turning on
		and off bintrans interactively, by flushing the bintrans cache
		whenever bintrans is manually (re)enabled.
20050419	Adding the 'lswi' ppc instruction.
		Minor updates to the x86 instruction decoding.
20050420	Renaming x86 register name indices from R_xx to X86_R_xx (this
		makes building on Tru64 nicer).
20050422	Adding a check for duplicate MIPS TLB entries on tlbwr/tlbwi.
20050427	Adding screenshots to guestoses.html.
		Some minor fixes and testing for the next release.

==============  RELEASE 0.3.2  ==============
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 1.26 2005/04/15 21:39:57 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 struct diskimage {
47 struct diskimage *next;
48 int type; /* DISKIMAGE_SCSI, etc */
49 int id; /* SCSI id */
50
51 char *fname;
52 FILE *f;
53
54 off_t total_size;
55 int logical_block_size;
56
57 int writable;
58 int is_a_cdrom;
59 int is_boot_device;
60
61 int is_a_tape;
62 uint64_t tape_offset;
63 int tape_filenr;
64 int filemark;
65
66 int rpms;
67 int ncyls;
68 };
69
70
71 /* Transfer command, sent from a SCSI controller device to a disk: */
72 struct scsi_transfer {
73 struct scsi_transfer *next_free;
74
75 /* These should be set by the SCSI controller before the call: */
76 unsigned char *msg_out;
77 size_t msg_out_len;
78 unsigned char *cmd;
79 size_t cmd_len;
80
81 /* data_out_len is set by the SCSI disk, if it needs data_out,
82 which is then filled in during a second pass in the controller. */
83 unsigned char *data_out;
84 size_t data_out_len;
85 size_t data_out_offset;
86
87 /* These should be set by the SCSI (disk) device before returning: */
88 unsigned char *data_in;
89 size_t data_in_len;
90 unsigned char *msg_in;
91 size_t msg_in_len;
92 unsigned char *status;
93 size_t status_len;
94 };
95
96
97 struct machine;
98
99 struct scsi_transfer *scsi_transfer_alloc(void);
100 void scsi_transfer_free(struct scsi_transfer *);
101 void scsi_transfer_allocbuf(size_t *lenp, unsigned char **pp,
102 size_t want_len, int clearflag);
103
104
105 int64_t diskimage_getsize(struct machine *machine, int scsi_id);
106 int diskimage_scsicommand(struct cpu *cpu, int scsi_id,
107 struct scsi_transfer *);
108 int diskimage_access(struct machine *machine, int scsi_id, int writeflag,
109 off_t offset, unsigned char *buf, size_t len);
110 int diskimage_exist(struct machine *machine, int scsi_id);
111 int diskimage_bootdev(struct machine *machine);
112 int diskimage_add(struct machine *machine, char *fname);
113 int diskimage_is_a_cdrom(struct machine *machine, int scsi_id);
114 int diskimage_is_a_tape(struct machine *machine, int scsi_id);
115 void diskimage_dump_info(struct machine *machine);
116
117 /*
118 * SCSI commands:
119 */
120 #define SCSICMD_TEST_UNIT_READY 0x00 /* Mandatory */
121 #define SCSICMD_REQUEST_SENSE 0x03 /* Mandatory */
122 #define SCSICMD_INQUIRY 0x12 /* Mandatory */
123
124 #define SCSICMD_READ 0x08
125 #define SCSICMD_READ_10 0x28
126 #define SCSICMD_WRITE 0x0a
127 #define SCSICMD_WRITE_10 0x2a
128 #define SCSICMD_MODE_SELECT 0x15
129 #define SCSICMD_MODE_SENSE 0x1a
130 #define SCSICMD_START_STOP_UNIT 0x1b
131
132 #define SCSICMD_SYNCHRONIZE_CACHE 0x35
133
134 /* SCSI block device commands: */
135 #define SCSIBLOCKCMD_READ_CAPACITY 0x25
136
137 /* SCSI CD-ROM commands: */
138 #define SCSICDROM_READ_SUBCHANNEL 0x42
139 #define SCSICDROM_READ_TOC 0x43
140
141 /* SCSI tape commands: */
142 #define SCSICMD_REWIND 0x01
143 #define SCSICMD_READ_BLOCK_LIMITS 0x05
144 #define SCSICMD_SPACE 0x11
145
146
147 #endif /* DISKIMAGE_H */
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