fdwrite.c revision 2849 
1/*
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
8 *
9 * $Id$
10 *
11 */
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
16#include <fcntl.h>
17#include <strings.h>
18#include <ctype.h>
19
20#include <errno.h>
21#include <machine/ioctl_fd.h>
22#include <i386/isa/fdreg.h>	/* XXX should be in <machine> dir */
23
24int
25format_track(int fd, int cyl, int secs, int head, int rate,
26     int gaplen, int secsize, int fill,int interleave)
27{
28    struct fd_formb f;
29    register int i,j;
30    int il[100];
31
32    memset(il,0,sizeof il);
33    for(j = 0, i = 1; i <= secs; i++) {
34	while(il[(j%secs)+1]) j++;
35	il[(j%secs)+1] = i;
36	j += interleave;
37    }
38
39    f.format_version = FD_FORMAT_VERSION;
40    f.head = head;
41    f.cyl = cyl;
42    f.transfer_rate = rate;
43
44    f.fd_formb_secshift = secsize;
45    f.fd_formb_nsecs = secs;
46    f.fd_formb_gaplen = gaplen;
47    f.fd_formb_fillbyte = fill;
48    for(i = 0; i < secs; i++) {
49	f.fd_formb_cylno(i) = cyl;
50	f.fd_formb_headno(i) = head;
51	f.fd_formb_secno(i) = il[i+1];
52	f.fd_formb_secsize(i) = secsize;
53    }
54    return ioctl(fd, FD_FORM, (caddr_t)&f);
55}
56
57static void
58usage ()
59{
60	printf("Usage:\n\tfdwrite [-v] [-f inputfile] [-d device]\n");
61	exit(2);
62}
63
64int
65main(int argc, char **argv)
66{
67    int inputfd = -1, c, fdn = 0, i,j,fd;
68    int bpt, verbose=1, nbytes=0, track;
69    char *device= "/dev/rfd0", *trackbuf = 0,*vrfybuf = 0;
70    struct fd_type fdt;
71    FILE *tty;
72
73    setbuf(stdout,0);
74    while((c = getopt(argc, argv, "d:s:f:v")) != -1)
75	    switch(c) {
76	    case 'd':	/* Which drive */
77		    device = optarg;
78		    break;
79
80	    case 'f':	/* input file */
81		    if (inputfd >= 0)
82			    close(inputfd);
83		    inputfd = open(optarg,O_RDONLY);
84		    if (inputfd < 0) {
85			    perror(optarg);
86			    exit(1);
87		    }
88		    break;
89
90	    case 'v':  /* Toggle verbosity */
91		    verbose = !verbose;
92		    break;
93
94	    case '?': default:
95		    usage();
96	    }
97
98    if (inputfd < 0)
99	inputfd = 0;
100
101    if(optind < argc)
102	    usage();
103
104    tty = fopen("/dev/tty","r+");
105    if(!tty) {
106	    perror("/dev/tty");
107	    exit(1);
108    }
109    setbuf(tty,0);
110
111    for(j=1;j > 0;) {
112        fdn++;
113	fprintf(tty,
114	    "Please insert floppy #%d in drive %s and press return >",
115		fdn,device);
116	while(1) {
117	    i = getc(tty);
118	    if(i == '\n') break;
119	}
120
121	if((fd = open(device, O_RDWR)) < 0) {
122	    perror(device);
123	    exit(1);
124	}
125
126	if(ioctl(fd, FD_GTYPE, &fdt) < 0) {
127	    fprintf(stderr, "fdformat: not a floppy disk: %s\n", device);
128	    exit(1);
129	}
130
131	bpt = fdt.sectrac * (1<<fdt.secsize) * 128;
132	if(!trackbuf) {
133	    trackbuf = malloc(bpt);
134	    if(!trackbuf) { perror("malloc"); exit(1); }
135	}
136	if(!vrfybuf) {
137	    vrfybuf = malloc(bpt);
138	    if(!vrfybuf) { perror("malloc"); exit(1); }
139	}
140
141	if(fdn == 1) {
142	    if(verbose) {
143		printf("Format: %d cylinders, %d heads, %d sectors, %d bytes = %dkb\n",
144		fdt.tracks,fdt.heads,fdt.sectrac,(1<<fdt.secsize) * 128,
145		fdt.tracks*bpt*fdt.heads/1024);
146
147	    }
148	    memset(trackbuf,0,bpt);
149	    for(j=0;inputfd >= 0 && j<bpt;j+=i) {
150		if(!(i = read(inputfd,trackbuf+j,bpt-j))) {
151		    close(inputfd);
152		    inputfd = -1;
153		    break;
154		}
155		nbytes += i;
156	    }
157	}
158	for (track = 0; track < fdt.tracks * fdt.heads; track++) {
159	    if(verbose) printf("\r%3d ",fdt.tracks * fdt.heads-track);
160	    if(verbose) putc((j ? 'I':'Z'),stdout);
161	    format_track(fd, track / fdt.heads, fdt.sectrac, track % fdt.heads,
162		    fdt.trans, fdt.f_gap, fdt.secsize, 0xe6,
163		    fdt.f_inter);
164	    if(verbose) putc('F',stdout);
165
166	    if (lseek (fd, (long) track*bpt, 0) < 0) {
167		perror("lseek");
168		exit (1);
169	    }
170	    if (write (fd, trackbuf, bpt) != bpt) {
171		perror("write");
172		exit (1);
173	    }
174	    if(verbose) putc('W',stdout);
175
176	    if (lseek (fd, (long) track*bpt, 0) < 0) {
177		perror("lseek");
178		exit (1);
179	    }
180	    if (read (fd, vrfybuf, bpt) != bpt) {
181		perror("read");
182		exit (1);
183	    }
184	    if(verbose) putc('R',stdout);
185
186	    if (memcmp(trackbuf,vrfybuf,bpt)) {
187		perror("compare");
188		exit (1);
189	    }
190	    if(verbose) putc('C',stdout);
191
192	    memset(trackbuf,0,bpt);
193	    for(j=0;inputfd >= 0 && j<bpt;j+=i) {
194		if(!(i = read(inputfd,trackbuf+j,bpt-j))) {
195		    close(inputfd);
196		    inputfd = -1;
197		    break;
198		}
199		nbytes += i;
200	    }
201	}
202	close(fd);
203	putc('\r',stdout);
204    }
205    if(verbose)
206	printf("%d bytes on %d flopp%s\n",nbytes,fdn,fdn==1?"y":"ies");
207    exit(0);
208}
209