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gw2dmk.c
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#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <getopt.h>
#include <ctype.h>
#include <regex.h>
#include <limits.h>
#include <signal.h>
#include "greaseweazle.h"
#include "msg_levels.h"
#include "msg.h"
#include "gw.h"
#include "gwx.h"
#include "gwhisto.h"
#include "gwfddrv.h"
#include "gw2dmkcmdset.h"
#include "gwdetect.h"
#include "gwdecode.h"
#include "dmk.h"
#include "dmkmerge.h"
#if defined(WIN64) || defined(WIN32)
#include <windows.h>
#endif
#define GUESS_TRACKS GW_MAX_TRACKS
const char version[] = VERSION;
static const struct option cmd_long_args[] = {
{ "alternate", required_argument, NULL, 'a' },
{ "drive", required_argument, NULL, 'd' },
{ "encoding", required_argument, NULL, 'e' },
{ "fmthresh", required_argument, NULL, 'f' },
{ "ignore", required_argument, NULL, 'g' },
{ "ipos", required_argument, NULL, 'i' },
{ "kind", required_argument, NULL, 'k' },
{ "dmktracklen", required_argument, NULL, 'l' },
{ "steps", required_argument, NULL, 'm' },
{ "postcomp", required_argument, NULL, 'p' },
{ "quirks", required_argument, NULL, 'q' },
{ "sides", required_argument, NULL, 's' },
{ "tracks", required_argument, NULL, 't' },
{ "logfile", required_argument, NULL, 'u' },
{ "verbosity", required_argument, NULL, 'v' },
{ "fmtimes", required_argument, NULL, 'w' },
{ "maxretries", required_argument, NULL, 'x' },
{ "maxsize", required_argument, NULL, 'z' },
{ "device", required_argument, NULL, 'G' },
{ "menu", required_argument, NULL, 'M' },
{ "replay", required_argument, NULL, 'R' },
{ "minsectors", required_argument, NULL, 'S' },
{ "stepdelay", required_argument, NULL, 'T' },
{ "gwlogfile", required_argument, NULL, 'U' },
{ "minretry", required_argument, NULL, 'X' },
{ "mfmthresh1", required_argument, NULL, '1' },
{ "mfmthresh2", required_argument, NULL, '2' },
/* Start of binary long options without single letter counterparts. */
{ "hd", no_argument, NULL, 0 },
{ "dd", no_argument, NULL, 0 },
{ "hole", no_argument, NULL, 0 },
{ "nohole", no_argument, NULL, 0 },
{ "join", no_argument, NULL, 0 },
{ "nojoin", no_argument, NULL, 0 },
{ "compat", no_argument, NULL, 0 },
{ "nocompat", no_argument, NULL, 0 },
{ "dmkopt", no_argument, NULL, 0 },
{ "nodmkopt", no_argument, NULL, 0 },
{ "usehisto", no_argument, NULL, 0 },
{ "nousehisto", no_argument, NULL, 0 },
{ "force", no_argument, NULL, 0 },
{ "noforce", no_argument, NULL, 0 },
{ "reset", no_argument, NULL, 0 },
{ "noreset", no_argument, NULL, 0 },
{ "reverse", no_argument, NULL, 0 },
{ "noreverse", no_argument, NULL, 0 },
{ 0, 0, 0, 0 }
};
static struct cmd_settings cmd_settings = {
.device_list = (const char *[]){
#if linux
"/dev/greaseweazle",
"/dev/ttyACM0",
#elif defined(WIN64) || defined(WIN32)
"\\\\.\\COM3",
#endif
NULL },
.fdd.gwfd = GW_DEVT_INVALID,
.fdd.device = NULL,
.fdd.bus = BUS_IBMPC,
.fdd.drive = -1,
.fdd.kind = -1,
.fdd.tracks = -1,
.fdd.sides = -1,
.fdd.steps = -1,
.fdd.densel = DS_NOTSET,
.fdd.step_ms = -1,
.fdd.settle_ms = -1,
.guess_tracks = false,
.guess_sides = false,
.guess_steps = false,
.check_compat_sides = true,
.reset_on_init = true,
.forcewrite = false,
.use_histo = false,
.usr_encoding = MIXED,
.reverse_sides = false,
.hole = true,
.alternate = 0,
.iam_pos = -1,
.fmtimes = 2,
.usr_fmthresh = -1,
.usr_mfmthresh1 = -1,
.usr_mfmthresh2 = -1,
.usr_postcomp = 0.5,
.ignore = 0,
.maxsecsize = 3,
.join_sectors = true,
.menu_intr_enabled = false,
.menu_err_enabled = false,
.scrn_verbosity = MSG_TSUMMARY,
.file_verbosity = MSG_QUIET,
.dmkopt = false,
.usr_dmktracklen = 0,
.logfile = NULL,
.devlogfile = NULL,
.dmkfile = NULL,
.gme.rpm = 0.0,
.gme.data_clock = 0.0,
.gme.bit_rate = 0.0,
.gme.fmthresh = 0,
.gme.mfmthresh1 = 0,
.gme.mfmthresh2 = 0,
.gme.mfmshort = 0.0,
.gme.thresh_adj = 0.0,
.min_sectors = {[0 ... DMK_MAX_TRACKS-1] = {[0 ... 1] = 0}},
.retries = {[0 ... DMK_MAX_TRACKS-1] = {[0 ... 1] = 4}},
.min_retries = {[0 ... DMK_MAX_TRACKS-1] = {[0 ... 1] = 0}}
};
static volatile gw_devt cleanup_gwfd = GW_DEVT_INVALID;
static volatile bool menu_requested = false;
static volatile bool exit_requested = false;
static volatile bool reading_floppy = false;
static void
fatal_bad_number(const char *name)
{
msg_fatal("%s requires a numeric argument.\n", name);
}
/*
* Like strtol, but exit with a fatal error message if there are any
* invalid characters or the string is empty.
*/
static long int
strtol_strict(const char *nptr, int base, const char *name)
{
char *endptr;
long int res = strtol(nptr, &endptr, base);
if (*nptr == '\0' || *endptr != '\0')
fatal_bad_number(name);
return res;
}
#ifdef __GNUC__
static int vu(const char *fmt, va_list ap) __attribute__((format(printf,1,0)));
static int u(const char *fmt, ...) __attribute__((format(printf,1,2)));
#endif
static int
vu(const char *fmt, va_list ap)
{
return vfprintf(stderr, fmt, ap);
}
static int
u(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
int ret = vu(fmt, args);
va_end(args);
return ret;
}
static void
usage(const char *pgm_name, struct cmd_settings *cmd_set)
{
u("Usage: %s [options] file.dmk\n\n"
" Options [settings in brackets]:\n", pgm_name);
u(" -G device Greaseweazle device [%s]\n",
cmd_set->fdd.device ? cmd_set->fdd.device :
cmd_set->device_list[0]);
u(" -d drive Drive unit {a,b,0,1,2} [%c]\n",
cmd_set->fdd.bus == BUS_SHUGART ?
cmd_set->fdd.drive + '0' :
cmd_set->fdd.drive + 'a');
u(" -v verbosity Amount of output [%d]\n",
(cmd_set->file_verbosity * 10) +
cmd_set->scrn_verbosity);
u(" 0 = No output\n");
u(" 1 = Summary of disk\n");
u(" 2 = + summary of each track\n");
u(" 3 = + individual errors\n");
u(" 4 = + track IDs and DAMs\n");
u(" 5 = + hex data and event flags\n");
u(" 6 = like 4, but with raw data too\n");
u(" 7 = like 5, but with Greaseweazle samples too\n");
u(" 21 = level 2 to logfile, 1 to screen, etc.\n");
u(" -u logfile Log output to the given file [%s]\n",
cmd_set->logfile ? cmd_set->logfile : "none");
u(" -U gwlogfile Greaseweazle transaction logfile [%s]\n",
cmd_set->devlogfile ? cmd_set->devlogfile :
"none");
//u(" -R logfile Replay logfile\n");
u(" -M {i,e,d} Menu control [d]\n");
u(" i = Interrupt (^C) invokes menu\n");
u(" e = Errors equals retries invokes menu\n");
u(" d = Disables invoking menu\n");
u(" --[no]hole Use or not index hole for track start [%shole]\n",
cmd_set->hole ? "" : "no");
u(" --[no]join Join or not sectors between retries [%sjoin]\n",
cmd_set->join_sectors ? "" : "no");
u(" --[no]compat Compare or not sides for incompatible formats "
"[%scompat]\n",
cmd_set->check_compat_sides ? "" : "no");
u(" --[no]dmkopt Optimize or not DMK track length [%sdmkopt]\n",
cmd_set->dmkopt ? "" : "no");
u(" --[no]usehisto Use histogram or not for autotuning of thresholds "
"[%susehisto]\n",
cmd_set->use_histo ? "" : "no");
u(" --[no]force Force or not to overwrite existing DMK output "
"file [%sforce]\n",
cmd_set->forcewrite ? "" : "no");
u(" --[no]reset Reset Greaseweazle upon initialization "
"[%sreset]\n",
cmd_set->reset_on_init ? "" : "no");
u("\n Options to manually set values that are normally "
"autodetected:\n");
u(" -k kind Kind of floppy drive and media\n");
for (int k = 1; k <= 4; ++k)
u(" %d = %s\n", k, kind2desc(k));
u(" -m steps Step multiplier, 1 or 2\n");
u(" -t tracks Number of tracks per side\n");
u(" -s sides Number of sides, 1 or 2\n");
u(" -e encoding 0 = mixed, 1 = FM (SD), 2 = MFM (DD or HD), "
"3 = RX02 [%d]\n", cmd_set->usr_encoding);
u(" --dd|--hd Density Select, pin 2\n");
u(" -x max_retry Max retries on errors [%d]\n",
cmd_set->retries[0][0]);
u(" -X min_retry Min retries even if no errors [%d]\n",
cmd_set->min_retries[0][0]);
u(" -S min_sector Min sector count [%d]\n",
cmd_set->min_sectors[0][0]);
u(" --[no]reverse Reverse sides or not [%sreverse]\n",
cmd_set->reverse_sides ? "" : "no");
u(" -q quirk Bitmap of support for some format quirks "
"[0x%02x]\n", cmd_set->quirk);
u(" 0x01 = ID CRCs omit a1 a1 a1 premark\n");
u(" 0x02 = Data CRCs omit a1 a1 a1 premark\n");
u(" 0x04 = Third a1 a1 a1 premark isn't missing "
"clock\n");
u(" 0x08 = Extra bytes (data only) after data CRC\n");
u(" 0x10 = Extra bytes (4 data + 2 CRC) after data "
"CRC\n");
u(" 0x20 = 4 extra data bytes before data CRC\n");
u(" 0x40 = FM IAM can have either 0xd7 or 0xc7 "
"clock\n");
u(" 0x80 = Extra MFM clocks may be present\n");
u(" -w fmtimes Write FM bytes 1 or 2 times [%d]\n",
cmd_set->fmtimes);
u(" -l bytes DMK track length\n");
u("\n Rarely used fine-tuning options:\n");
u(" -f threshold FM threshold for short vs. long\n");
u(" -1 threshold MFM threshold for short vs. medium\n");
u(" -2 threshold MFM threshold for medium vs. long\n");
u(" -p postcomp Amount of read-postcompensation (0.0-1.0) "
"[%.2f]\n", cmd_set->usr_postcomp);
u(" -T stp[,stl] Step time");
if (cmd_set->fdd.step_ms != -1)
u(" [%u]", cmd_set->fdd.step_ms);
u(" and head settling time");
if (cmd_set->fdd.settle_ms != -1)
u(" [%u]", cmd_set->fdd.settle_ms);
u(" in ms\n");
u(" -g ign Ignore first ign bytes of track [%d]\n",
cmd_set->ignore);
u(" -i ipos Force IAM to ipos from track start; if -1, "
"don't [%d]\n", cmd_set->iam_pos);
u(" -z maxsize Allow sector sizes up to 128<<maxsize [%d]\n",
cmd_set->maxsecsize);
u(" -a alternate Alternate even/odd tracks on retries with -m2 "
"[%d]\n", cmd_set->alternate);
u(" 0 = always even\n");
u(" 1 = always odd\n");
u(" 2 = even, then odd\n");
u(" 3 = odd, then even\n");
u("\n%s version %s\n\n", pgm_name, version);
exit(EXIT_FAILURE);
}
enum menu_action {
MENU_NOCHANGE,
MENU_QUIT,
MENU_NORETRY,
MENU_NEWRETRIES
};
static enum menu_action
menu(int failing, int retries[GW_MAX_TRACKS][2])
{
printf("\n*** Reading paused. ***");
do {
printf("\nWould you like to (c)ontinue, (q)uit, "
"%schange # of (r)etries%s:\n",
failing ? "" : "or ",
failing ? ", or\n(g)ive up retrying and continue on "
"with the data as read" : "");
fflush(stdout);
char inc;
int ret = scanf(" %c", &inc);
if (ret != 1)
continue;
switch (inc) {
case 'c': return MENU_NOCHANGE;
case 'q': return MENU_QUIT;
case 'g': return MENU_NORETRY;
case 'r':
do {
printf("New retry limit? ");
fflush(stdout);
int rnum;
ret = scanf(" %d", &rnum);
if (ret == 1 && rnum >= 0) {
for (int i = 0; i < GW_MAX_TRACKS;
++i) {
retries[i][0] = rnum;
retries[i][1] = rnum;
}
printf("Retry limit is now %d.\n",
rnum);
return MENU_NEWRETRIES;
}
printf("Invalid number.\n");
} while (1);
break;
default:
printf("Input character '%c' unrecognized.\n", inc);
break;
}
} while (1);
}
/*
* Parse a list of track ranges.
*
* Returns:
* 0 - Success
* 1 - regcomp failure (internal error)
* 2 - Parse list failure (internal error)
* 3 - Track or side parameter out of range (user error)
*/
static int
parse_tracks(const char *ss, int opt_matrix[GW_MAX_TRACKS][2])
{
int err = 0;
regex_t regex;
static const char re[] =
"^([0-9]+)" "(:[0-9]+((/[01])?(-([0-9]+(/[01])?)?)?)?)?" "(,|$)";
if (regcomp(®ex, re, REG_EXTENDED | REG_NEWLINE))
return 1;
while (!err && *ss != '\0') {
regmatch_t pmatch[9];
if (regexec(®ex, ss, COUNT_OF(pmatch), pmatch, 0)) {
err = 1;
break;
}
int range_value = -1;
int range_track[2] = { -1, -1 };
int range_side[2] = { -1, -1 };
int range_hyphen = 0;
regoff_t old_soff = INT_MAX;
for (int i = 1; i < COUNT_OF(pmatch); ++i) {
regoff_t soff = pmatch[i].rm_so;
regoff_t eoff = pmatch[i].rm_eo;
const char *p = ss + soff;
char *eip;
if (soff == -1)
break;
/*
* Skip if its a null entry or if it's an
* entry that's a repeat.
*/
if (soff == eoff || soff == old_soff)
continue;
if (range_value == -1) {
range_value = strtol(p, &eip, 0);
} else if (range_track[0] == -1 && p[0] == ':') {
range_track[0] = strtol(&p[1], &eip, 0);
} else if (range_side[0] == -1 && p[0] == '/') {
range_side[0] = strtol(&p[1], &eip, 0);
} else if (p[0] == '-') {
range_hyphen = 1;
} else if (range_track[1] == -1) {
range_track[1] = strtol(&p[0], &eip, 0);
} else if (range_side[1] == -1 && p[0] == '/') {
range_side[1] = strtol(&p[1], &eip, 0);
} else if (p[0] == ',') {
break;
} else {
err = 2;
break;
}
old_soff = soff;
}
if (err)
break;
if (range_track[0] == -1) {
range_track[0] = 0;
range_side[0] = 0;
range_track[1] = GW_MAX_TRACKS - 1;
range_side[1] = 1;
} else {
if (range_side[0] == -1)
range_side[0] = 0;
if (range_track[1] == -1)
range_track[1] =
range_hyphen ? GW_MAX_TRACKS -
1 : range_track[0];
if (range_side[1] == -1)
range_side[1] =
range_hyphen ? 1 : range_side[0];
}
/* Check to make sure tracks and sides are in order. */
if (range_track[1] < range_track[0] ||
(range_track[1] == range_track[0] &&
range_side[1] < range_side[0])) {
err = 3;
break;
}
/* Now set the opt_matrix for the range given. */
for (int tm = range_track[0] * 2 + range_side[0];
tm <= range_track[1] * 2 + range_side[1]; ++tm) {
opt_matrix[tm / 2][tm % 2] = range_value;
}
ss += pmatch[0].rm_eo;
}
return err;
}
static void
parse_args(int argc,
char **argv,
const char *pgm_name,
struct cmd_settings *cmd_set)
{
int opt;
int lindex = 0;
while ((opt = getopt_long(argc, argv,
"a:d:e:f:g:i:k:l:m:p:q:s:t:u:v:w:x:z:G:M:S:T:U:X:1:2:",
cmd_long_args, &lindex)) != -1) {
switch(opt) {
case 0:;
const char *name = cmd_long_args[lindex].name;
if (!strcmp(name, "hd")) {
cmd_set->fdd.densel = DS_HD;
} else if (!strcmp(name, "dd")) {
cmd_set->fdd.densel = DS_DD;
} else if (!strcmp(name, "hole")) {
cmd_set->hole = true;
} else if (!strcmp(name, "nohole")) {
cmd_set->hole = false;
} else if (!strcmp(name, "join")) {
cmd_set->join_sectors = true;
} else if (!strcmp(name, "nojoin")) {
cmd_set->join_sectors = false;
} else if (!strcmp(name, "compat")) {
cmd_set->check_compat_sides = true;
} else if (!strcmp(name, "nocompat")) {
cmd_set->check_compat_sides = false;
} else if (!strcmp(name, "dmkopt")) {
cmd_set->dmkopt = true;
} else if (!strcmp(name, "nodmkopt")) {
cmd_set->dmkopt = false;
} else if (!strcmp(name, "usehisto")) {
cmd_set->use_histo = true;
} else if (!strcmp(name, "nousehisto")) {
cmd_set->use_histo = false;
} else if (!strcmp(name, "force")) {
cmd_set->forcewrite = true;
} else if (!strcmp(name, "noforce")) {
cmd_set->forcewrite = false;
} else if (!strcmp(name, "reset")) {
cmd_set->reset_on_init = true;
} else if (!strcmp(name, "noreset")) {
cmd_set->reset_on_init = false;
} else if (!strcmp(name, "reverse")) {
cmd_set->reverse_sides = true;
} else if (!strcmp(name, "noreverse")) {
cmd_set->reverse_sides = false;
} else {
goto err_usage;
}
break;
case 'a':;
const int alt = strtol_strict(optarg, 10, "'a'");
if (alt < 0 || alt > 3) goto err_usage;
cmd_set->alternate = alt;
break;
case 'd':
if (optarg[0] && optarg[1]) goto d_err;
const int loarg = tolower(optarg[0]);
switch(loarg) {
case '0':
case '1':
case '2':
cmd_set->fdd.bus = BUS_SHUGART;
cmd_set->fdd.drive = loarg - '0';
break;
case 'a':
case 'b':
cmd_set->fdd.bus = BUS_IBMPC;
cmd_set->fdd.drive = loarg - 'a';
break;
default: d_err:
msg_error("Option-argument to '%c' must "
"be 0, 1, 2, a, or b.\n", opt);
goto err_usage;
}
break;
case 'e':;
const int uenc = strtol_strict(optarg, 10, "'e'");
if (uenc < FM || uenc > RX02) goto err_usage;
cmd_set->usr_encoding = uenc;
break;
case 'f':;
const int fmthr = strtol_strict(optarg, 10, "'f'");
if (fmthr < 1) goto err_usage;
cmd_set->usr_fmthresh = fmthr;
break;
case 'g':;
const int ign = strtol_strict(optarg, 10, "'g'");
cmd_set->ignore = ign;
break;
case 'i':;
const int ipos = strtol_strict(optarg, 10, "'i'");
cmd_set->iam_pos = ipos;
break;
case 'k':;
const int kind = strtol_strict(optarg, 10, "'k'");
if (kind >= 1 && kind <= 4) {
cmd_set->fdd.kind = kind;
} else {
msg_error("Option-argument to '%c' must "
"be 1 or 4.\n", opt);
goto err_usage;
}
break;
case 'l':;
const int dmktracklen =
strtol_strict(optarg, 10, "'l'");
if (dmktracklen < 0 || dmktracklen >= 0x4000)
goto err_usage;
cmd_set->usr_dmktracklen = dmktracklen;
break;
case 'm':;
const int steps = strtol_strict(optarg, 10, "'m'");
if (steps >= 1 && steps <= 2) {
cmd_set->fdd.steps = steps;
} else {
msg_error("Option-argument to '%c' must "
"be 1 or 2.\n", opt);
goto err_usage;
}
break;
case 'p':;
double postcomp;
const int pret = sscanf(optarg, "%lf", &postcomp);
if (pret != 1 || postcomp < 0.0 || postcomp > 1.0)
goto err_usage;
cmd_set->usr_postcomp = postcomp;
break;
case 'q':;
const int quirk = strtol_strict(optarg, 0, "'q'");
if (quirk & ~QUIRK_ALL) goto err_usage;
if (((quirk & QUIRK_EXTRA) != 0) +
((quirk & QUIRK_EXTRA_CRC) != 0) +
((quirk & QUIRK_EXTRA_DATA) != 0) > 1) {
msg_fatal("Quirks %#x, %#x, and %#x "
"cannot be used together.\n",
QUIRK_EXTRA, QUIRK_EXTRA_CRC, QUIRK_EXTRA_DATA);
}
cmd_set->quirk = quirk;
break;
case 's':;
const int sides = strtol_strict(optarg, 10, "'s'");
if (sides < 1 || sides > 2) {
msg_error("Option-argument to '%c' must "
"be 1 or 2.\n", opt);
goto err_usage;
}
cmd_set->fdd.sides = sides;
break;
case 't':;
const int tracks = strtol_strict(optarg, 10, "'t'");
if (tracks < 0 || tracks > GW_MAX_TRACKS) {
msg_error("Option-argument to '%c' must "
"be between 0 and %d.\n",
opt, GW_MAX_TRACKS);
goto err_usage;
}
cmd_set->fdd.tracks = tracks;
break;
case 'u':
cmd_set->logfile = strdup(optarg);
if (!cmd_set->logfile)
msg_fatal("Cannot allocate logfile name.\n");
break;
case 'v':;
const int optav = strtol_strict(optarg, 10, "'v'");
if (optav < 0 || optav > 99) goto err_usage;
cmd_set->scrn_verbosity = optav % 10;
cmd_set->file_verbosity = optav / 10;
break;
case 'w':;
const int fmtm = strtol_strict(optarg, 10, "'w'");
if (fmtm < 1 || fmtm > 2) goto err_usage;
cmd_set->fmtimes = fmtm;
break;
case 'x':
if (parse_tracks(optarg, cmd_set->retries))
goto err_usage;
break;
case 'z':;
const int maxsize = strtol_strict(optarg, 10, "'z'");
if (maxsize < 0 || maxsize > 255) {
msg_error("Option-argument to '%c' must "
"be >= and <= 255.\n", opt);
goto err_usage;
}
cmd_set->maxsecsize = maxsize;
break;
case 'G':;
#if defined(WIN32) || defined(WIN64)
/* If the user specified a 2 digit COM device
* without the '\\\\.\\' prefix, prefix their string
* with it. Always malloc the string on MSW so we
* always know we can free() if it needed on this OS.
*/
char *ds;
if (strncasecmp("COM", optarg, 3) == 0 &&
isdigit(optarg[3]) &&
isdigit(optarg[4]) &&
!optarg[5]) {
ds = malloc(4 + 5 + 1);
if (ds) {
strcpy(ds, "\\\\.\\");
strcpy(ds + 4, optarg);
}
} else {
ds = strdup(optarg);
}
if (!ds)
msg_fatal("Cannot allocate device name.\n");
cmd_set->fdd.device = ds;
#else
cmd_set->fdd.device = optarg;
#endif
break;
case 'M':
if (!strcmp(optarg, "i")) {
cmd_set->menu_intr_enabled = true;
} else if (!strcmp(optarg, "e")) {
cmd_set->menu_err_enabled = true;
} else if (!strcmp(optarg, "d")) {
cmd_set->menu_intr_enabled = false;
cmd_set->menu_err_enabled = false;
} else {
goto err_usage;
}
break;
case 'S':
if (parse_tracks(optarg, cmd_set->min_sectors))
goto err_usage;
break;
case 'T':;
unsigned int step_ms, settle_ms;
int sfn = sscanf(optarg, "%u,%u", &step_ms, &settle_ms);
switch (sfn) {
case 2:
if (settle_ms > 65000) goto err_usage;
cmd_set->fdd.settle_ms = settle_ms;
/* FALLTHRU */
case 1:
if (step_ms > 65) goto err_usage;
cmd_set->fdd.step_ms = step_ms;
break;
default:
goto err_usage;
break;
}
break;
case 'U':
cmd_set->devlogfile = optarg;
break;
case 'X':
if (parse_tracks(optarg, cmd_set->min_retries))
goto err_usage;
break;
case '1':;
const int mfmthr1 = strtol_strict(optarg, 10, "'1'");
if (mfmthr1 < 1) goto err_usage;
cmd_set->usr_mfmthresh1 = mfmthr1;
break;
case '2':;
const int mfmthr2 = strtol_strict(optarg, 10, "'2'");
if (mfmthr2 < 1) goto err_usage;
cmd_set->usr_mfmthresh2 = mfmthr2;
break;
default: /* '?' */
goto err_usage;
break;
}
}
if (optind != (argc-1))
goto err_usage;
cmd_set->dmkfile = argv[optind];
msg_scrn_set_level(cmd_set->scrn_verbosity);
msg_file_set_level(cmd_set->file_verbosity);
if (cmd_set->file_verbosity > MSG_QUIET) {
if (!cmd_set->logfile) {
char *p = strrchr(cmd_set->dmkfile, '.');
size_t dmk_len = p ? p - cmd_set->dmkfile :
strlen(cmd_set->dmkfile);
char *s1 = malloc(dmk_len + 5);
if (!s1)
msg_fatal("Cannot allocate log file name.\n");
sprintf(s1, "%.*s.log", (int)dmk_len, cmd_set->dmkfile);
cmd_set->logfile = s1;
}
if (!msg_fopen(cmd_set->logfile)) {
msg_error("Failed to open log file '%s': %s\n",
cmd_set->logfile, strerror(errno));
goto err_usage;
}
}
if (cmd_set->devlogfile) {
FILE *dlfp = fopen(cmd_set->devlogfile, "w");
if (!dlfp) {
msg_error("Failed to open device log file '%s': %s\n",
cmd_set->devlogfile, strerror(errno));
goto err_usage;
}
if (!gw_set_logfp(dlfp)) {
msg_error("Failed to set device log file '%s': %s\n",
cmd_set->devlogfile, strerror(errno));
goto err_usage;
}
}
return;
err_usage:
usage(pgm_name, cmd_set);
}
static int
imark_fn(uint32_t imark, void *data)
{
return gwflux_decode_index(imark, (struct flux2dmk_sm *)data);
}
struct pulse_data {
struct gw_media_encoding *gme;
struct flux2dmk_sm *flux2dmk;
};
static int
pulse_fn(uint32_t pulse, void *data)
{
struct pulse_data *pdata = (struct pulse_data *)data;
return gwflux_decode_pulse(pulse, pdata->gme, pdata->flux2dmk);
}
static void
dmk_file_init(struct dmk_file *dmkf)
{
dmk_header_init(&dmkf->header, 0, DMKRD_TRACKLEN_MAX);
memset(dmkf->track, 0, sizeof(struct dmk_track));
}
/*
* Open a binary file for writing and return a file pointer.
*
* If fail_if_exists is true, ensure file does not exist prior to open.
*/
static FILE *
fopenwx(const char *file, bool fail_if_exists)
{
int oflags = O_RDWR | O_CREAT | O_TRUNC | (fail_if_exists ? O_EXCL : 0);
#if defined(WIN64) || defined(WIN32)
oflags += O_BINARY;
#endif
int fd = open(file, oflags, 0644);
if (fd == -1)
return NULL;
return fdopen(fd, "wb");
}
/*
* Read the track and side.
*
* -2 Attempt restart.
* -1 Side count changed to 1 (cmd_set->fdd.sides=1).
* 0 Everything good, continue reading next track.
* 1 Everything good, but done reading this disk.
* 2+ Error.
*/
// XXX Too many args. Rethink.
static int
read_track(struct cmd_settings *cmd_set,
uint32_t sample_freq,
struct dmk_file *dmkf,
struct dmk_disk_stats *dds,
int track,
int side,
int *first_encoding,
int *prev_cyl,
int *t0s0ss)
{
struct dmk_track_stats dts;
dmk_track_stats_init(&dts);
struct flux2dmk_sm flux2dmk;
int retry = 0;
retry:
msg(MSG_TSUMMARY, "Track %d, side %d, pass %d",
track, side, retry + 1);
if (retry)
msg(MSG_TSUMMARY, "/%d", cmd_set->retries[track][side] + 1);
msg(MSG_TSUMMARY, ":");
msg_scrn_flush();
int headpos = track * cmd_set->fdd.steps;
if (cmd_set->fdd.steps == 2) {
headpos += cmd_set->alternate & 1;
if ((retry > 0) && (cmd_set->alternate & 2))
headpos ^= 1;
}
gw_seek(cmd_set->fdd.gwfd, headpos);
// error checking
gw_head(cmd_set->fdd.gwfd, side ^ cmd_set->reverse_sides);
// error checking
fdecoder_init(&flux2dmk.fdec, sample_freq);
flux2dmk.fdec.usr_encoding = cmd_set->usr_encoding;
flux2dmk.fdec.first_encoding = *first_encoding;
flux2dmk.fdec.cur_encoding = *first_encoding;
flux2dmk.fdec.maxsecsize = cmd_set->maxsecsize;
flux2dmk.fdec.use_hole = cmd_set->hole;
flux2dmk.fdec.quirk = cmd_set->quirk;
flux2dmk.fdec.reverse_sides = cmd_set->reverse_sides;
flux2dmk.fdec.awaiting_iam = (cmd_set->iam_pos >= 0) ? true : false;
flux2dmk.fdec.cyl_prev_seen = *prev_cyl;
dmk_track_sm_init(&flux2dmk.dtsm,
dds,
&dmkf->header,
&dmkf->track[track][side],