revert between 56095 -> 55830 in arch
[AROS.git] / workbench / devs / diskimage / plugins / adf.c
blob46221c8e508d2e977c27cec8fea5165ea73a3426
1 /* Copyright 2007-2012 Fredrik Wikstrom. All rights reserved.
2 **
3 ** Redistribution and use in source and binary forms, with or without
4 ** modification, are permitted provided that the following conditions
5 ** are met:
6 **
7 ** 1. Redistributions of source code must retain the above copyright
8 ** notice, this list of conditions and the following disclaimer.
9 **
10 ** 2. Redistributions in binary form must reproduce the above copyright
11 ** notice, this list of conditions and the following disclaimer in the
12 ** documentation and/or other materials provided with the distribution.
14 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
15 ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 ** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 ** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 ** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 ** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 ** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 ** POSSIBILITY OF SUCH DAMAGE.
27 #define USED_PLUGIN_API_VERSION 8
28 #include <devices/diskimage.h>
29 #include <proto/exec.h>
30 #include <proto/dos.h>
31 #include <string.h>
32 #include <SDI_compiler.h>
33 #include "device_locale.h"
34 #include "rev/diskimage.device_rev.h"
36 PLUGIN_VERSTAG("ADF")
38 extern struct DiskImagePlugin adf_plugin;
40 PLUGIN_TABLE(&adf_plugin)
42 struct ADFImage {
43 BPTR file;
44 ULONG block_size;
45 ULONG total_blocks;
46 UQUAD total_bytes;
49 BOOL ADF_CheckImage (struct DiskImagePlugin *Self, BPTR file, CONST_STRPTR name, QUAD file_size,
50 const UBYTE *test, LONG testsize);
51 APTR Generic_OpenImage (struct DiskImagePlugin *Self, APTR unit, BPTR file, CONST_STRPTR name);
52 void Generic_CloseImage (struct DiskImagePlugin *Self, APTR image_ptr);
53 LONG ADF_Geometry (struct DiskImagePlugin *Self, APTR image_ptr, struct DriveGeometry *dg);
54 LONG Generic_Read (struct DiskImagePlugin *Self, APTR image_ptr, struct IOStdReq *io);
55 LONG Generic_Write (struct DiskImagePlugin *Self, APTR image_ptr, struct IOStdReq *io);
57 struct DiskImagePlugin adf_plugin = {
58 PLUGIN_NODE(-126, "ADF"),
59 PLUGIN_FLAG_M68K,
61 ZERO,
62 NULL,
63 NULL,
64 NULL,
65 ADF_CheckImage,
66 Generic_OpenImage,
67 Generic_CloseImage,
68 ADF_Geometry,
69 Generic_Read,
70 Generic_Write,
71 NULL,
72 NULL,
73 NULL,
74 NULL
77 BOOL ADF_CheckImage (struct DiskImagePlugin *Self, BPTR file, CONST_STRPTR name, QUAD file_size,
78 const UBYTE *test, LONG testsize)
80 switch (file_size) {
81 case 737280: /* DD disk (PC) */
82 case 819200: /* DD disk (Sam Coupe) */
83 case 901120: /* DD disk (Amiga) */
84 case 1474560: /* HD disk (PC) */
85 case 1802240: /* HD disk (Amiga) */
86 return TRUE;
87 default:
88 return FALSE;
92 LONG ADF_Geometry (struct DiskImagePlugin *Self, APTR image_ptr, struct DriveGeometry *dg) {
93 struct ADFImage *image = image_ptr;
94 dg->dg_SectorSize = image->block_size;
95 dg->dg_Heads = 2;
96 dg->dg_Cylinders = 80;
97 dg->dg_TotalSectors = image->total_blocks;
98 dg->dg_CylSectors = dg->dg_TotalSectors / dg->dg_Cylinders;
99 dg->dg_TrackSectors = dg->dg_CylSectors / dg->dg_Heads;
100 return IOERR_SUCCESS;