2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 Joerg Wunsch
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <dev/ic/nec765.h>
33 #include <sys/fdcio.h>
44 * Decode the FDC status pointed to by `fdcsp', and print a textual
45 * translation to stderr. If `terse' is false, the numerical FDC
46 * register status is printed, too.
49 printstatus(struct fdc_status *fdcsp, int terse)
55 "\nFDC status ST0=%#x ST1=%#x ST2=%#x C=%u H=%u R=%u N=%u:\n",
56 fdcsp->status[0] & 0xff,
57 fdcsp->status[1] & 0xff,
58 fdcsp->status[2] & 0xff,
59 fdcsp->status[3] & 0xff,
60 fdcsp->status[4] & 0xff,
61 fdcsp->status[5] & 0xff,
62 fdcsp->status[6] & 0xff);
64 if ((fdcsp->status[0] & NE7_ST0_IC_RC) == 0) {
65 sprintf(msgbuf, "timeout");
66 } else if ((fdcsp->status[0] & NE7_ST0_IC_RC) != NE7_ST0_IC_AT) {
67 sprintf(msgbuf, "unexcpted interrupt code %#x",
68 fdcsp->status[0] & NE7_ST0_IC_RC);
70 strcpy(msgbuf, "unexpected error code in ST1/ST2");
72 if (fdcsp->status[1] & NE7_ST1_EN)
73 strcpy(msgbuf, "end of cylinder (wrong format)");
74 else if (fdcsp->status[1] & NE7_ST1_DE) {
75 if (fdcsp->status[2] & NE7_ST2_DD)
76 strcpy(msgbuf, "CRC error in data field");
78 strcpy(msgbuf, "CRC error in ID field");
79 } else if (fdcsp->status[1] & NE7_ST1_MA) {
80 if (fdcsp->status[2] & NE7_ST2_MD)
81 strcpy(msgbuf, "no address mark in data field");
83 strcpy(msgbuf, "no address mark in ID field");
84 } else if (fdcsp->status[2] & NE7_ST2_WC)
85 strcpy(msgbuf, "wrong cylinder (format mismatch)");
86 else if (fdcsp->status[1] & NE7_ST1_ND)
87 strcpy(msgbuf, "no data (sector not found)");
89 fputs(msgbuf, stderr);
92 static struct fd_type fd_types_auto[1] =
93 { { 0,0,0,0,0,0,0,0,0,0,0,FL_AUTO } };
96 static struct fd_type fd_types_288m[] = {
107 { 0,0,0,0,0,0,0,0,0,0,0,0 }
110 static struct fd_type fd_types_144m[] = {
118 { 0,0,0,0,0,0,0,0,0,0,0,0 }
121 static struct fd_type fd_types_12m[] = {
129 { FDF_5_360 | FL_2STEP },
131 { 0,0,0,0,0,0,0,0,0,0,0,0 }
134 static struct fd_type fd_types_720k[] =
137 { 0,0,0,0,0,0,0,0,0,0,0,0 }
140 static struct fd_type fd_types_360k[] =
143 { 0,0,0,0,0,0,0,0,0,0,0,0 }
148 * Parse a format string, and fill in the parameter pointed to by `out'.
150 * sectrac,secsize,datalen,gap,ncyls,speed,heads,f_gap,f_inter,offs2,flags[...]
152 * sectrac = sectors per track
153 * secsize = sector size in bytes
154 * datalen = length of sector if secsize == 128
155 * gap = gap length when reading
156 * ncyls = number of cylinders
157 * speed = transfer speed 250/300/500/1000 KB/s
158 * heads = number of heads
159 * f_gap = gap length when formatting
160 * f_inter = sector interleave when formatting
161 * offs2 = offset of sectors on side 2
162 * flags = +/-mfm | +/-2step | +/-perpend
163 * mfm - use MFM recording
164 * 2step - use 2 steps between cylinders
165 * perpend - user perpendicular (vertical) recording
167 * Any omitted value will be passed on from parameter `in'.
170 parse_fmt(const char *s, enum fd_drivetype type,
171 struct fd_type in, struct fd_type *out)
183 if ((cp = strchr(s, ',')) == NULL) {
189 s1 = malloc(cp - s + 1);
192 memcpy(s1, s, cp - s);
197 if (strlen(s1) == 0) {
203 case 0: /* sectrac */
204 if (getnum(s1, &out->sectrac))
206 "bad numeric value for sectrac: %s", s1);
209 case 1: /* secsize */
212 "bad numeric value for secsize: %s", s1);
213 if (j == 128) out->secsize = 0;
214 else if (j == 256) out->secsize = 1;
215 else if (j == 512) out->secsize = 2;
216 else if (j == 1024) out->secsize = 3;
218 errx(EX_USAGE, "bad sector size %d", j);
221 case 2: /* datalen */
224 "bad numeric value for datalen: %s", s1);
226 errx(EX_USAGE, "bad datalen %d", j);
231 if (getnum(s1, &out->gap))
233 "bad numeric value for gap: %s", s1);
239 "bad numeric value for ncyls: %s", s1);
241 errx(EX_USAGE, "bad # of cylinders %d", j);
248 "bad numeric value for speed: %s", s1);
251 abort(); /* paranoia */
256 out->trans = FDC_250KBPS;
258 errx(EX_USAGE, "bad speed %d", j);
263 out->trans = FDC_300KBPS;
265 out->trans = FDC_250KBPS;
267 out->trans = FDC_500KBPS;
269 errx(EX_USAGE, "bad speed %d", j);
274 out->trans = FDC_1MBPS;
278 out->trans = FDC_250KBPS;
280 out->trans = FDC_500KBPS;
282 errx(EX_USAGE, "bad speed %d", j);
290 "bad numeric value for heads: %s", s1);
291 if (j == 1 || j == 2)
294 errx(EX_USAGE, "bad # of heads %d", j);
298 if (getnum(s1, &out->f_gap))
300 "bad numeric value for f_gap: %s", s1);
303 case 8: /* f_inter */
304 if (getnum(s1, &out->f_inter))
306 "bad numeric value for f_inter: %s", s1);
310 if (getnum(s1, &out->offset_side2))
312 "bad numeric value for offs2: %s", s1);
316 if (strcmp(s1, "+mfm") == 0)
317 out->flags |= FL_MFM;
318 else if (strcmp(s1, "-mfm") == 0)
319 out->flags &= ~FL_MFM;
320 else if (strcmp(s1, "+auto") == 0)
321 out->flags |= FL_AUTO;
322 else if (strcmp(s1, "-auto") == 0)
323 out->flags &= ~FL_AUTO;
324 else if (strcmp(s1, "+2step") == 0)
325 out->flags |= FL_2STEP;
326 else if (strcmp(s1, "-2step") == 0)
327 out->flags &= ~FL_2STEP;
328 else if (strcmp(s1, "+perpnd") == 0)
329 out->flags |= FL_PERPND;
330 else if (strcmp(s1, "-perpnd") == 0)
331 out->flags &= ~FL_PERPND;
333 errx(EX_USAGE, "bad flag: %s", s1);
339 out->size = out->tracks * out->heads * out->sectrac;
343 * Print a textual translation of the drive (density) type described
344 * by `in' to stdout. The string uses the same form that is parseable
348 print_fmt(struct fd_type in)
352 secsize = 128 << in.secsize;
354 case FDC_250KBPS: speed = 250; break;
355 case FDC_300KBPS: speed = 300; break;
356 case FDC_500KBPS: speed = 500; break;
357 case FDC_1MBPS: speed = 1000; break;
358 default: speed = 1; break;
361 printf("%d,%d,%#x,%#x,%d,%d,%d,%#x,%d,%d",
362 in.sectrac, secsize, in.datalen, in.gap, in.tracks,
363 speed, in.heads, in.f_gap, in.f_inter, in.offset_side2);
364 if (in.flags & FL_MFM)
366 if (in.flags & FL_2STEP)
368 if (in.flags & FL_PERPND)
370 if (in.flags & FL_AUTO)
376 * Based on `size' (in kilobytes), walk through the table of known
377 * densities for drive type `type' and see if we can find one. If
378 * found, return it (as a pointer to static storage), otherwise return
382 get_fmt(int size, enum fd_drivetype type)
385 struct fd_type *fdtp;
392 fdtp = fd_types_360k;
393 n = sizeof fd_types_360k / sizeof(struct fd_type);
397 fdtp = fd_types_720k;
398 n = sizeof fd_types_720k / sizeof(struct fd_type);
403 n = sizeof fd_types_12m / sizeof(struct fd_type);
407 fdtp = fd_types_144m;
408 n = sizeof fd_types_144m / sizeof(struct fd_type);
412 fdtp = fd_types_288m;
413 n = sizeof fd_types_288m / sizeof(struct fd_type);
418 return fd_types_auto;
420 for (i = 0; i < n; i++, fdtp++) {
421 fdtp->size = fdtp->sectrac * fdtp->heads * fdtp->tracks;
422 if (((128 << fdtp->secsize) * fdtp->size / 1024) == size)
429 * Parse a number from `s'. If the string cannot be converted into a
430 * number completely, return -1, otherwise 0. The result is returned
434 getnum(const char *s, int *res)
439 ul = strtoul(s, &cp, 0);
448 * Return a short name and a verbose description for the drive
452 getname(enum fd_drivetype t, const char **name, const char **descr)
458 *descr = "unknown drive type";
463 *descr = "5.25\" double-density";
468 *descr = "5.25\" high-density";
473 *descr = "3.5\" double-density";
478 *descr = "3.5\" high-density";
483 *descr = "3.5\" extra-density";