sys/dev/sound/midi/sequencer.c

   1 /*-
   2  * Copyright (c) 2003 Mathew Kanner
   3  * Copyright (c) 1993 Hannu Savolainen
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 /*
  29  * The sequencer personality manager.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __FBSDID("$FreeBSD: head/sys/dev/sound/midi/sequencer.c 274035 2014-11-03 11:11:45Z bapt $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/ioccom.h>
  38
  39 #include <sys/filio.h>
  40 #include <sys/lock.h>
  41 #include <sys/sockio.h>
  42 #include <sys/fcntl.h>
  43 #include <sys/proc.h>
  44 #include <sys/sysctl.h>
  45
  46 #include <sys/kernel.h>                 /* for DATA_SET */
  47
  48 #include <sys/module.h>
  49 #include <sys/conf.h>
  50 #include <sys/file.h>
  51 #include <sys/uio.h>
  52 #include <sys/syslog.h>
  53 #include <sys/errno.h>
  54 #include <sys/malloc.h>
  55 #include <sys/bus.h>
  56 #include <machine/resource.h>
  57 #include <machine/bus.h>
  58 #include <machine/clock.h>              /* for DELAY */
  59 #include <sys/soundcard.h>
  60 #include <sys/rman.h>
  61 #include <sys/mman.h>
  62 #include <sys/poll.h>
  63 #include <sys/mutex.h>
  64 #include <sys/condvar.h>
  65 #include <sys/kthread.h>
  66 #include <sys/unistd.h>
  67 #include <sys/selinfo.h>
  68
  69 #ifdef HAVE_KERNEL_OPTION_HEADERS
  70 #include "opt_snd.h"
  71 #endif
  72
  73 #include <dev/sound/midi/midi.h>
  74 #include <dev/sound/midi/midiq.h>
  75 #include "synth_if.h"
  76
  77 #include <dev/sound/midi/sequencer.h>
  78
  79 #define TMR_TIMERBASE 13
  80
  81 #define SND_DEV_SEQ     1               /* Sequencer output /dev/sequencer (FM
  82                                          * synthesizer and MIDI output) */
  83 #define SND_DEV_MUSIC   8               /* /dev/music, level 2 interface */
  84
  85 /* Length of a sequencer event. */
  86 #define EV_SZ 8
  87 #define IEV_SZ 8
  88
  89 /* Lookup modes */
  90 #define LOOKUP_EXIST    (0)
  91 #define LOOKUP_OPEN     (1)
  92 #define LOOKUP_CLOSE    (2)
  93
  94 #define PCMMKMINOR(u, d, c) \
  95             ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f))
  96 #define MIDIMKMINOR(u, d, c) PCMMKMINOR(u, d, c)
  97 #define MIDIUNIT(y) ((dev2unit(y) >> 4) & 0x0f)
  98 #define MIDIDEV(y) (dev2unit(y) & 0x0f)
  99
 100 /* These are the entries to the sequencer driver. */
 101 static d_open_t seq_open;
 102 static d_close_t seq_close;
 103 static d_ioctl_t seq_ioctl;
 104 static d_read_t seq_read;
 105 static d_write_t seq_write;
 106 static d_poll_t seq_poll;
 107
 108 static struct cdevsw seq_cdevsw = {
 109         .d_version = D_VERSION,
 110         .d_open = seq_open,
 111         .d_close = seq_close,
 112         .d_read = seq_read,
 113         .d_write = seq_write,
 114         .d_ioctl = seq_ioctl,
 115         .d_poll = seq_poll,
 116         .d_name = "sequencer",
 117 };
 118
 119 struct seq_softc {
 120         KOBJ_FIELDS;
 121
 122         struct mtx seq_lock, q_lock;
 123         struct cv empty_cv, reset_cv, in_cv, out_cv, state_cv, th_cv;
 124
 125         MIDIQ_HEAD(, u_char) in_q, out_q;
 126
 127         u_long  flags;
 128         /* Flags (protected by flag_mtx of mididev_info) */
 129         int     fflags;                 /* Access mode */
 130         int     music;
 131
 132         int     out_water;              /* Sequence output threshould */
 133         snd_sync_parm sync_parm;        /* AIOSYNC parameter set */
 134         struct thread *sync_thread;     /* AIOSYNCing thread */
 135         struct selinfo in_sel, out_sel;
 136         int     midi_number;
 137         struct cdev *seqdev, *musicdev;
 138         int     unit;
 139         int     maxunits;
 140         kobj_t *midis;
 141         int    *midi_flags;
 142         kobj_t  mapper;
 143         void   *mapper_cookie;
 144         struct timeval timerstop, timersub;
 145         int     timerbase, tempo;
 146         int     timerrun;
 147         int     done;
 148         int     playing;
 149         int     recording;
 150         int     busy;
 151         int     pre_event_timeout;
 152         int     waiting;
 153 };
 154
 155 /*
 156  * Module specific stuff, including how many sequecers
 157  * we currently own.
 158  */
 159
 160 SYSCTL_NODE(_hw_midi, OID_AUTO, seq, CTLFLAG_RD, 0, "Midi sequencer");
 161
 162 int                                     seq_debug;
 163 /* XXX: should this be moved into debug.midi? */
 164 SYSCTL_INT(_hw_midi_seq, OID_AUTO, debug, CTLFLAG_RW, &seq_debug, 0, "");
 165
 166 midi_cmdtab     cmdtab_seqevent[] = {
 167         {SEQ_NOTEOFF,           "SEQ_NOTEOFF"},
 168         {SEQ_NOTEON,            "SEQ_NOTEON"},
 169         {SEQ_WAIT,              "SEQ_WAIT"},
 170         {SEQ_PGMCHANGE,         "SEQ_PGMCHANGE"},
 171         {SEQ_SYNCTIMER,         "SEQ_SYNCTIMER"},
 172         {SEQ_MIDIPUTC,          "SEQ_MIDIPUTC"},
 173         {SEQ_DRUMON,            "SEQ_DRUMON"},
 174         {SEQ_DRUMOFF,           "SEQ_DRUMOFF"},
 175         {SEQ_ECHO,              "SEQ_ECHO"},
 176         {SEQ_AFTERTOUCH,        "SEQ_AFTERTOUCH"},
 177         {SEQ_CONTROLLER,        "SEQ_CONTROLLER"},
 178         {SEQ_BALANCE,           "SEQ_BALANCE"},
 179         {SEQ_VOLMODE,           "SEQ_VOLMODE"},
 180         {SEQ_FULLSIZE,          "SEQ_FULLSIZE"},
 181         {SEQ_PRIVATE,           "SEQ_PRIVATE"},
 182         {SEQ_EXTENDED,          "SEQ_EXTENDED"},
 183         {EV_SEQ_LOCAL,          "EV_SEQ_LOCAL"},
 184         {EV_TIMING,             "EV_TIMING"},
 185         {EV_CHN_COMMON,         "EV_CHN_COMMON"},
 186         {EV_CHN_VOICE,          "EV_CHN_VOICE"},
 187         {EV_SYSEX,              "EV_SYSEX"},
 188         {-1,                    NULL},
 189 };
 190
 191 midi_cmdtab     cmdtab_seqioctl[] = {
 192         {SNDCTL_SEQ_RESET,      "SNDCTL_SEQ_RESET"},
 193         {SNDCTL_SEQ_SYNC,       "SNDCTL_SEQ_SYNC"},
 194         {SNDCTL_SYNTH_INFO,     "SNDCTL_SYNTH_INFO"},
 195         {SNDCTL_SEQ_CTRLRATE,   "SNDCTL_SEQ_CTRLRATE"},
 196         {SNDCTL_SEQ_GETOUTCOUNT,        "SNDCTL_SEQ_GETOUTCOUNT"},
 197         {SNDCTL_SEQ_GETINCOUNT, "SNDCTL_SEQ_GETINCOUNT"},
 198         {SNDCTL_SEQ_PERCMODE,   "SNDCTL_SEQ_PERCMODE"},
 199         {SNDCTL_FM_LOAD_INSTR,  "SNDCTL_FM_LOAD_INSTR"},
 200         {SNDCTL_SEQ_TESTMIDI,   "SNDCTL_SEQ_TESTMIDI"},
 201         {SNDCTL_SEQ_RESETSAMPLES,       "SNDCTL_SEQ_RESETSAMPLES"},
 202         {SNDCTL_SEQ_NRSYNTHS,   "SNDCTL_SEQ_NRSYNTHS"},
 203         {SNDCTL_SEQ_NRMIDIS,    "SNDCTL_SEQ_NRMIDIS"},
 204         {SNDCTL_SEQ_GETTIME,    "SNDCTL_SEQ_GETTIME"},
 205         {SNDCTL_MIDI_INFO,      "SNDCTL_MIDI_INFO"},
 206         {SNDCTL_SEQ_THRESHOLD,  "SNDCTL_SEQ_THRESHOLD"},
 207         {SNDCTL_SYNTH_MEMAVL,   "SNDCTL_SYNTH_MEMAVL"},
 208         {SNDCTL_FM_4OP_ENABLE,  "SNDCTL_FM_4OP_ENABLE"},
 209         {SNDCTL_PMGR_ACCESS,    "SNDCTL_PMGR_ACCESS"},
 210         {SNDCTL_SEQ_PANIC,      "SNDCTL_SEQ_PANIC"},
 211         {SNDCTL_SEQ_OUTOFBAND,  "SNDCTL_SEQ_OUTOFBAND"},
 212         {SNDCTL_TMR_TIMEBASE,   "SNDCTL_TMR_TIMEBASE"},
 213         {SNDCTL_TMR_START,      "SNDCTL_TMR_START"},
 214         {SNDCTL_TMR_STOP,       "SNDCTL_TMR_STOP"},
 215         {SNDCTL_TMR_CONTINUE,   "SNDCTL_TMR_CONTINUE"},
 216         {SNDCTL_TMR_TEMPO,      "SNDCTL_TMR_TEMPO"},
 217         {SNDCTL_TMR_SOURCE,     "SNDCTL_TMR_SOURCE"},
 218         {SNDCTL_TMR_METRONOME,  "SNDCTL_TMR_METRONOME"},
 219         {SNDCTL_TMR_SELECT,     "SNDCTL_TMR_SELECT"},
 220         {SNDCTL_MIDI_PRETIME,   "SNDCTL_MIDI_PRETIME"},
 221         {AIONWRITE,             "AIONWRITE"},
 222         {AIOGSIZE,              "AIOGSIZE"},
 223         {AIOSSIZE,              "AIOSSIZE"},
 224         {AIOGFMT,               "AIOGFMT"},
 225         {AIOSFMT,               "AIOSFMT"},
 226         {AIOGMIX,               "AIOGMIX"},
 227         {AIOSMIX,               "AIOSMIX"},
 228         {AIOSTOP,               "AIOSTOP"},
 229         {AIOSYNC,               "AIOSYNC"},
 230         {AIOGCAP,               "AIOGCAP"},
 231         {-1,                    NULL},
 232 };
 233
 234 midi_cmdtab     cmdtab_timer[] = {
 235         {TMR_WAIT_REL,  "TMR_WAIT_REL"},
 236         {TMR_WAIT_ABS,  "TMR_WAIT_ABS"},
 237         {TMR_STOP,      "TMR_STOP"},
 238         {TMR_START,     "TMR_START"},
 239         {TMR_CONTINUE,  "TMR_CONTINUE"},
 240         {TMR_TEMPO,     "TMR_TEMPO"},
 241         {TMR_ECHO,      "TMR_ECHO"},
 242         {TMR_CLOCK,     "TMR_CLOCK"},
 243         {TMR_SPP,       "TMR_SPP"},
 244         {TMR_TIMESIG,   "TMR_TIMESIG"},
 245         {-1,            NULL},
 246 };
 247
 248 midi_cmdtab     cmdtab_seqcv[] = {
 249         {MIDI_NOTEOFF,          "MIDI_NOTEOFF"},
 250         {MIDI_NOTEON,           "MIDI_NOTEON"},
 251         {MIDI_KEY_PRESSURE,     "MIDI_KEY_PRESSURE"},
 252         {-1,                    NULL},
 253 };
 254
 255 midi_cmdtab     cmdtab_seqccmn[] = {
 256         {MIDI_CTL_CHANGE,       "MIDI_CTL_CHANGE"},
 257         {MIDI_PGM_CHANGE,       "MIDI_PGM_CHANGE"},
 258         {MIDI_CHN_PRESSURE,     "MIDI_CHN_PRESSURE"},
 259         {MIDI_PITCH_BEND,       "MIDI_PITCH_BEND"},
 260         {MIDI_SYSTEM_PREFIX,    "MIDI_SYSTEM_PREFIX"},
 261         {-1,                    NULL},
 262 };
 263
 264 #ifndef KOBJMETHOD_END
 265 #define KOBJMETHOD_END  { NULL, NULL }
 266 #endif
 267
 268 /*
 269  * static const char *mpu401_mprovider(kobj_t obj, struct mpu401 *m);
 270  */
 271
 272 static kobj_method_t seq_methods[] = {
 273         /* KOBJMETHOD(mpu_provider,mpu401_mprovider), */
 274         KOBJMETHOD_END
 275 };
 276
 277 DEFINE_CLASS(sequencer, seq_methods, 0);
 278
 279 /* The followings are the local function. */
 280 static int seq_convertold(u_char *event, u_char *out);
 281
 282 /*
 283  * static void seq_midiinput(struct seq_softc * scp, void *md);
 284  */
 285 static void seq_reset(struct seq_softc *scp);
 286 static int seq_sync(struct seq_softc *scp);
 287
 288 static int seq_processevent(struct seq_softc *scp, u_char *event);
 289
 290 static int seq_timing(struct seq_softc *scp, u_char *event);
 291 static int seq_local(struct seq_softc *scp, u_char *event);
 292
 293 static int seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event);
 294 static int seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event);
 295 static int seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event);
 296
 297 static int seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md);
 298 void    seq_copytoinput(struct seq_softc *scp, u_char *event, int len);
 299 int     seq_modevent(module_t mod, int type, void *data);
 300 struct seq_softc *seqs[10];
 301 static struct mtx seqinfo_mtx;
 302 static u_long nseq = 0;
 303
 304 static void timer_start(struct seq_softc *t);
 305 static void timer_stop(struct seq_softc *t);
 306 static void timer_setvals(struct seq_softc *t, int tempo, int timerbase);
 307 static void timer_wait(struct seq_softc *t, int ticks, int wait_abs);
 308 static int timer_now(struct seq_softc *t);
 309
 310
 311 static void
 312 timer_start(struct seq_softc *t)
 313 {
 314         t->timerrun = 1;
 315         getmicrotime(&t->timersub);
 316 }
 317
 318 static void
 319 timer_continue(struct seq_softc *t)
 320 {
 321         struct timeval now;
 322
 323         if (t->timerrun == 1)
 324                 return;
 325         t->timerrun = 1;
 326         getmicrotime(&now);
 327         timevalsub(&now, &t->timerstop);
 328         timevaladd(&t->timersub, &now);
 329 }
 330
 331 static void
 332 timer_stop(struct seq_softc *t)
 333 {
 334         t->timerrun = 0;
 335         getmicrotime(&t->timerstop);
 336 }
 337
 338 static void
 339 timer_setvals(struct seq_softc *t, int tempo, int timerbase)
 340 {
 341         t->tempo = tempo;
 342         t->timerbase = timerbase;
 343 }
 344
 345 static void
 346 timer_wait(struct seq_softc *t, int ticks, int wait_abs)
 347 {
 348         struct timeval now, when;
 349         int ret;
 350         unsigned long long i;
 351
 352         while (t->timerrun == 0) {
 353                 SEQ_DEBUG(2, printf("Timer wait when timer isn't running\n"));
 354                 /*
 355                  * The old sequencer used timeouts that only increased
 356                  * the timer when the timer was running.
 357                  * Hence the sequencer would stick (?) if the
 358                  * timer was disabled.
 359                  */
 360                 cv_wait(&t->reset_cv, &t->seq_lock);
 361                 if (t->playing == 0)
 362                         return;
 363         }
 364
 365         i = ticks * 60ull * 1000000ull / (t->tempo * t->timerbase);
 366
 367         when.tv_sec = i / 1000000;
 368         when.tv_usec = i % 1000000;
 369
 370 #if 0
 371         printf("timer_wait tempo %d timerbase %d ticks %d abs %d u_sec %llu\n",
 372             t->tempo, t->timerbase, ticks, wait_abs, i);
 373 #endif
 374
 375         if (wait_abs != 0) {
 376                 getmicrotime(&now);
 377                 timevalsub(&now, &t->timersub);
 378                 timevalsub(&when, &now);
 379         }
 380         if (when.tv_sec < 0 || when.tv_usec < 0) {
 381                 SEQ_DEBUG(3,
 382                     printf("seq_timer error negative time %lds.%06lds\n",
 383                     (long)when.tv_sec, (long)when.tv_usec));
 384                 return;
 385         }
 386         i = when.tv_sec * 1000000ull;
 387         i += when.tv_usec;
 388         i *= hz;
 389         i /= 1000000ull;
 390 #if 0
 391         printf("seq_timer usec %llu ticks %llu\n",
 392             when.tv_sec * 1000000ull + when.tv_usec, i);
 393 #endif
 394         t->waiting = 1;
 395         ret = cv_timedwait(&t->reset_cv, &t->seq_lock, i + 1);
 396         t->waiting = 0;
 397
 398         if (ret != EWOULDBLOCK)
 399                 SEQ_DEBUG(3, printf("seq_timer didn't timeout\n"));
 400
 401 }
 402
 403 static int
 404 timer_now(struct seq_softc *t)
 405 {
 406         struct timeval now;
 407         unsigned long long i;
 408         int ret;
 409
 410         if (t->timerrun == 0)
 411                 now = t->timerstop;
 412         else
 413                 getmicrotime(&now);
 414
 415         timevalsub(&now, &t->timersub);
 416
 417         i = now.tv_sec * 1000000ull;
 418         i += now.tv_usec;
 419         i *= t->timerbase;
 420 /*      i /= t->tempo; */
 421         i /= 1000000ull;
 422
 423         ret = i;
 424         /*
 425          * printf("timer_now: %llu %d\n", i, ret);
 426          */
 427
 428         return ret;
 429 }
 430
 431 static void
 432 seq_eventthread(void *arg)
 433 {
 434         struct seq_softc *scp = arg;
 435         char event[EV_SZ];
 436
 437         mtx_lock(&scp->seq_lock);
 438         SEQ_DEBUG(2, printf("seq_eventthread started\n"));
 439         while (scp->done == 0) {
 440 restart:
 441                 while (scp->playing == 0) {
 442                         cv_wait(&scp->state_cv, &scp->seq_lock);
 443                         if (scp->done)
 444                                 goto done;
 445                 }
 446
 447                 while (MIDIQ_EMPTY(scp->out_q)) {
 448                         cv_broadcast(&scp->empty_cv);
 449                         cv_wait(&scp->out_cv, &scp->seq_lock);
 450                         if (scp->playing == 0)
 451                                 goto restart;
 452                         if (scp->done)
 453                                 goto done;
 454                 }
 455
 456                 MIDIQ_DEQ(scp->out_q, event, EV_SZ);
 457
 458                 if (MIDIQ_AVAIL(scp->out_q) < scp->out_water) {
 459                         cv_broadcast(&scp->out_cv);
 460                         selwakeup(&scp->out_sel);
 461                 }
 462                 seq_processevent(scp, event);
 463         }
 464
 465 done:
 466         cv_broadcast(&scp->th_cv);
 467         mtx_unlock(&scp->seq_lock);
 468         SEQ_DEBUG(2, printf("seq_eventthread finished\n"));
 469         kproc_exit(0);
 470 }
 471
 472 /*
 473  * seq_processevent:  This maybe called by the event thread or the IOCTL
 474  * handler for queued and out of band events respectively.
 475  */
 476 static int
 477 seq_processevent(struct seq_softc *scp, u_char *event)
 478 {
 479         int ret;
 480         kobj_t m;
 481
 482         ret = 0;
 483
 484         if (event[0] == EV_SEQ_LOCAL)
 485                 ret = seq_local(scp, event);
 486         else if (event[0] == EV_TIMING)
 487                 ret = seq_timing(scp, event);
 488         else if (event[0] != EV_CHN_VOICE &&
 489                     event[0] != EV_CHN_COMMON &&
 490                     event[0] != EV_SYSEX &&
 491             event[0] != SEQ_MIDIPUTC) {
 492                 ret = 1;
 493                 SEQ_DEBUG(2, printf("seq_processevent not known %d\n",
 494                     event[0]));
 495         } else if (seq_fetch_mid(scp, event[1], &m) != 0) {
 496                 ret = 1;
 497                 SEQ_DEBUG(2, printf("seq_processevent midi unit not found %d\n",
 498                     event[1]));
 499         } else
 500                 switch (event[0]) {
 501                 case EV_CHN_VOICE:
 502                         ret = seq_chnvoice(scp, m, event);
 503                         break;
 504                 case EV_CHN_COMMON:
 505                         ret = seq_chncommon(scp, m, event);
 506                         break;
 507                 case EV_SYSEX:
 508                         ret = seq_sysex(scp, m, event);
 509                         break;
 510                 case SEQ_MIDIPUTC:
 511                         mtx_unlock(&scp->seq_lock);
 512                         ret = SYNTH_WRITERAW(m, &event[2], 1);
 513                         mtx_lock(&scp->seq_lock);
 514                         break;
 515                 }
 516         return ret;
 517 }
 518
 519 static int
 520 seq_addunit(void)
 521 {
 522         struct seq_softc *scp;
 523         int ret;
 524         u_char *buf;
 525
 526         /* Allocate the softc. */
 527         ret = ENOMEM;
 528         scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT | M_ZERO);
 529         if (scp == NULL) {
 530                 SEQ_DEBUG(1, printf("seq_addunit: softc allocation failed.\n"));
 531                 goto err;
 532         }
 533         kobj_init((kobj_t)scp, &sequencer_class);
 534
 535         buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
 536         if (buf == NULL)
 537                 goto err;
 538         MIDIQ_INIT(scp->in_q, buf, EV_SZ * 1024);
 539         buf = malloc(sizeof(*buf) * EV_SZ * 1024, M_TEMP, M_NOWAIT | M_ZERO);
 540         if (buf == NULL)
 541                 goto err;
 542         MIDIQ_INIT(scp->out_q, buf, EV_SZ * 1024);
 543         ret = EINVAL;
 544
 545         scp->midis = malloc(sizeof(kobj_t) * 32, M_TEMP, M_NOWAIT | M_ZERO);
 546         scp->midi_flags = malloc(sizeof(*scp->midi_flags) * 32, M_TEMP,
 547             M_NOWAIT | M_ZERO);
 548
 549         if (scp->midis == NULL || scp->midi_flags == NULL)
 550                 goto err;
 551
 552         scp->flags = 0;
 553
 554         mtx_init(&scp->seq_lock, "seqflq", NULL, 0);
 555         cv_init(&scp->state_cv, "seqstate");
 556         cv_init(&scp->empty_cv, "seqempty");
 557         cv_init(&scp->reset_cv, "seqtimer");
 558         cv_init(&scp->out_cv, "seqqout");
 559         cv_init(&scp->in_cv, "seqqin");
 560         cv_init(&scp->th_cv, "seqstart");
 561
 562         /*
 563          * Init the damn timer
 564          */
 565
 566         scp->mapper = midimapper_addseq(scp, &scp->unit, &scp->mapper_cookie);
 567         if (scp->mapper == NULL)
 568                 goto err;
 569
 570         scp->seqdev = make_dev(&seq_cdevsw,
 571             MIDIMKMINOR(scp->unit, SND_DEV_SEQ, 0), UID_ROOT,
 572             GID_WHEEL, 0666, "sequencer%d", scp->unit);
 573
 574         scp->musicdev = make_dev(&seq_cdevsw,
 575             MIDIMKMINOR(scp->unit, SND_DEV_MUSIC, 0), UID_ROOT,
 576             GID_WHEEL, 0666, "music%d", scp->unit);
 577
 578         if (scp->seqdev == NULL || scp->musicdev == NULL)
 579                 goto err;
 580         /*
 581          * TODO: Add to list of sequencers this module provides
 582          */
 583
 584         ret =
 585             kproc_create
 586             (seq_eventthread, scp, NULL, RFHIGHPID, 0,
 587             "sequencer %02d", scp->unit);
 588
 589         if (ret)
 590                 goto err;
 591
 592         scp->seqdev->si_drv1 = scp->musicdev->si_drv1 = scp;
 593
 594         SEQ_DEBUG(2, printf("sequencer %d created scp %p\n", scp->unit, scp));
 595
 596         ret = 0;
 597
 598         mtx_lock(&seqinfo_mtx);
 599         seqs[nseq++] = scp;
 600         mtx_unlock(&seqinfo_mtx);
 601
 602         goto ok;
 603
 604 err:
 605         if (scp != NULL) {
 606                 if (scp->seqdev != NULL)
 607                         destroy_dev(scp->seqdev);
 608                 if (scp->musicdev != NULL)
 609                         destroy_dev(scp->musicdev);
 610                 /*
 611                  * TODO: Destroy mutex and cv
 612                  */
 613                 if (scp->midis != NULL)
 614                         free(scp->midis, M_TEMP);
 615                 if (scp->midi_flags != NULL)
 616                         free(scp->midi_flags, M_TEMP);
 617                 if (scp->out_q.b)
 618                         free(scp->out_q.b, M_TEMP);
 619                 if (scp->in_q.b)
 620                         free(scp->in_q.b, M_TEMP);
 621                 free(scp, M_DEVBUF);
 622         }
 623 ok:
 624         return ret;
 625 }
 626
 627 static int
 628 seq_delunit(int unit)
 629 {
 630         struct seq_softc *scp = seqs[unit];
 631         int i;
 632
 633         //SEQ_DEBUG(4, printf("seq_delunit: %d\n", unit));
 634         SEQ_DEBUG(1, printf("seq_delunit: 1 \n"));
 635         mtx_lock(&scp->seq_lock);
 636
 637         scp->playing = 0;
 638         scp->done = 1;
 639         cv_broadcast(&scp->out_cv);
 640         cv_broadcast(&scp->state_cv);
 641         cv_broadcast(&scp->reset_cv);
 642         SEQ_DEBUG(1, printf("seq_delunit: 2 \n"));
 643         cv_wait(&scp->th_cv, &scp->seq_lock);
 644         SEQ_DEBUG(1, printf("seq_delunit: 3.0 \n"));
 645         mtx_unlock(&scp->seq_lock);
 646         SEQ_DEBUG(1, printf("seq_delunit: 3.1 \n"));
 647
 648         cv_destroy(&scp->state_cv);
 649         SEQ_DEBUG(1, printf("seq_delunit: 4 \n"));
 650         cv_destroy(&scp->empty_cv);
 651         SEQ_DEBUG(1, printf("seq_delunit: 5 \n"));
 652         cv_destroy(&scp->reset_cv);
 653         SEQ_DEBUG(1, printf("seq_delunit: 6 \n"));
 654         cv_destroy(&scp->out_cv);
 655         SEQ_DEBUG(1, printf("seq_delunit: 7 \n"));
 656         cv_destroy(&scp->in_cv);
 657         SEQ_DEBUG(1, printf("seq_delunit: 8 \n"));
 658         cv_destroy(&scp->th_cv);
 659
 660         SEQ_DEBUG(1, printf("seq_delunit: 10 \n"));
 661         if (scp->seqdev)
 662                 destroy_dev(scp->seqdev);
 663         SEQ_DEBUG(1, printf("seq_delunit: 11 \n"));
 664         if (scp->musicdev)
 665                 destroy_dev(scp->musicdev);
 666         SEQ_DEBUG(1, printf("seq_delunit: 12 \n"));
 667         scp->seqdev = scp->musicdev = NULL;
 668         if (scp->midis != NULL)
 669                 free(scp->midis, M_TEMP);
 670         SEQ_DEBUG(1, printf("seq_delunit: 13 \n"));
 671         if (scp->midi_flags != NULL)
 672                 free(scp->midi_flags, M_TEMP);
 673         SEQ_DEBUG(1, printf("seq_delunit: 14 \n"));
 674         free(scp->out_q.b, M_TEMP);
 675         SEQ_DEBUG(1, printf("seq_delunit: 15 \n"));
 676         free(scp->in_q.b, M_TEMP);
 677
 678         SEQ_DEBUG(1, printf("seq_delunit: 16 \n"));
 679
 680         mtx_destroy(&scp->seq_lock);
 681         SEQ_DEBUG(1, printf("seq_delunit: 17 \n"));
 682         free(scp, M_DEVBUF);
 683
 684         mtx_lock(&seqinfo_mtx);
 685         for (i = unit; i < (nseq - 1); i++)
 686                 seqs[i] = seqs[i + 1];
 687         nseq--;
 688         mtx_unlock(&seqinfo_mtx);
 689
 690         return 0;
 691 }
 692
 693 int
 694 seq_modevent(module_t mod, int type, void *data)
 695 {
 696         int retval, r;
 697
 698         retval = 0;
 699
 700         switch (type) {
 701         case MOD_LOAD:
 702                 mtx_init(&seqinfo_mtx, "seqmod", NULL, 0);
 703                 retval = seq_addunit();
 704                 break;
 705
 706         case MOD_UNLOAD:
 707                 while (nseq) {
 708                         r = seq_delunit(nseq - 1);
 709                         if (r) {
 710                                 retval = r;
 711                                 break;
 712                         }
 713                 }
 714                 if (nseq == 0) {
 715                         retval = 0;
 716                         mtx_destroy(&seqinfo_mtx);
 717                 }
 718                 break;
 719
 720         default:
 721                 break;
 722         }
 723
 724         return retval;
 725 }
 726
 727 static int
 728 seq_fetch_mid(struct seq_softc *scp, int unit, kobj_t *md)
 729 {
 730
 731         if (unit > scp->midi_number || unit < 0)
 732                 return EINVAL;
 733
 734         *md = scp->midis[unit];
 735
 736         return 0;
 737 }
 738
 739 int
 740 seq_open(struct cdev *i_dev, int flags, int mode, struct thread *td)
 741 {
 742         struct seq_softc *scp = i_dev->si_drv1;
 743         int i;
 744
 745         if (scp == NULL)
 746                 return ENXIO;
 747
 748         SEQ_DEBUG(3, printf("seq_open: scp %p unit %d, flags 0x%x.\n",
 749             scp, scp->unit, flags));
 750
 751         /*
 752          * Mark this device busy.
 753          */
 754
 755         mtx_lock(&scp->seq_lock);
 756         if (scp->busy) {
 757                 mtx_unlock(&scp->seq_lock);
 758                 SEQ_DEBUG(2, printf("seq_open: unit %d is busy.\n", scp->unit));
 759                 return EBUSY;
 760         }
 761         scp->fflags = flags;
 762         /*
 763         if ((scp->fflags & O_NONBLOCK) != 0)
 764                 scp->flags |= SEQ_F_NBIO;
 765                 */
 766         scp->music = MIDIDEV(i_dev) == SND_DEV_MUSIC;
 767
 768         /*
 769          * Enumerate the available midi devices
 770          */
 771         scp->midi_number = 0;
 772         scp->maxunits = midimapper_open(scp->mapper, &scp->mapper_cookie);
 773
 774         if (scp->maxunits == 0)
 775                 SEQ_DEBUG(2, printf("seq_open: no midi devices\n"));
 776
 777         for (i = 0; i < scp->maxunits; i++) {
 778                 scp->midis[scp->midi_number] =
 779                     midimapper_fetch_synth(scp->mapper, scp->mapper_cookie, i);
 780                 if (scp->midis[scp->midi_number]) {
 781                         if (SYNTH_OPEN(scp->midis[scp->midi_number], scp,
 782                                 scp->fflags) != 0)
 783                                 scp->midis[scp->midi_number] = NULL;
 784                         else {
 785                                 scp->midi_flags[scp->midi_number] =
 786                                     SYNTH_QUERY(scp->midis[scp->midi_number]);
 787                                 scp->midi_number++;
 788                         }
 789                 }
 790         }
 791
 792         timer_setvals(scp, 60, 100);
 793
 794         timer_start(scp);
 795         timer_stop(scp);
 796         /*
 797          * actually, if we're in rdonly mode, we should start the timer
 798          */
 799         /*
 800          * TODO: Handle recording now
 801          */
 802
 803         scp->out_water = MIDIQ_SIZE(scp->out_q) / 2;
 804
 805         scp->busy = 1;
 806         mtx_unlock(&scp->seq_lock);
 807
 808         SEQ_DEBUG(2, printf("seq_open: opened, mode %s.\n",
 809             scp->music ? "music" : "sequencer"));
 810         SEQ_DEBUG(2,
 811             printf("Sequencer %d %p opened maxunits %d midi_number %d:\n",
 812                 scp->unit, scp, scp->maxunits, scp->midi_number));
 813         for (i = 0; i < scp->midi_number; i++)
 814                 SEQ_DEBUG(3, printf("  midi %d %p\n", i, scp->midis[i]));
 815
 816         return 0;
 817 }
 818
 819 /*
 820  * seq_close
 821  */
 822 int
 823 seq_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
 824 {
 825         int i;
 826         struct seq_softc *scp = i_dev->si_drv1;
 827         int ret;
 828
 829         if (scp == NULL)
 830                 return ENXIO;
 831
 832         SEQ_DEBUG(2, printf("seq_close: unit %d.\n", scp->unit));
 833
 834         mtx_lock(&scp->seq_lock);
 835
 836         ret = ENXIO;
 837         if (scp->busy == 0)
 838                 goto err;
 839
 840         seq_reset(scp);
 841         seq_sync(scp);
 842
 843         for (i = 0; i < scp->midi_number; i++)
 844                 if (scp->midis[i])
 845                         SYNTH_CLOSE(scp->midis[i]);
 846
 847         midimapper_close(scp->mapper, scp->mapper_cookie);
 848
 849         timer_stop(scp);
 850
 851         scp->busy = 0;
 852         ret = 0;
 853
 854 err:
 855         SEQ_DEBUG(3, printf("seq_close: closed ret = %d.\n", ret));
 856         mtx_unlock(&scp->seq_lock);
 857         return ret;
 858 }
 859
 860 int
 861 seq_read(struct cdev *i_dev, struct uio *uio, int ioflag)
 862 {
 863         int retval, used;
 864         struct seq_softc *scp = i_dev->si_drv1;
 865
 866 #define SEQ_RSIZE 32
 867         u_char buf[SEQ_RSIZE];
 868
 869         if (scp == NULL)
 870                 return ENXIO;
 871
 872         SEQ_DEBUG(7, printf("seq_read: unit %d, resid %zd.\n",
 873             scp->unit, uio->uio_resid));
 874
 875         mtx_lock(&scp->seq_lock);
 876         if ((scp->fflags & FREAD) == 0) {
 877                 SEQ_DEBUG(2, printf("seq_read: unit %d is not for reading.\n",
 878                     scp->unit));
 879                 retval = EIO;
 880                 goto err1;
 881         }
 882         /*
 883          * Begin recording.
 884          */
 885         /*
 886          * if ((scp->flags & SEQ_F_READING) == 0)
 887          */
 888         /*
 889          * TODO, start recording if not alread
 890          */
 891
 892         /*
 893          * I think the semantics are to return as soon
 894          * as possible.
 895          * Second thought, it doens't seem like midimoutain
 896          * expects that at all.
 897          * TODO: Look up in some sort of spec
 898          */
 899
 900         while (uio->uio_resid > 0) {
 901                 while (MIDIQ_EMPTY(scp->in_q)) {
 902                         retval = EWOULDBLOCK;
 903                         /*
 904                          * I wish I knew which one to care about
 905                          */
 906
 907                         if (scp->fflags & O_NONBLOCK)
 908                                 goto err1;
 909                         if (ioflag & O_NONBLOCK)
 910                                 goto err1;
 911
 912                         retval = cv_wait_sig(&scp->in_cv, &scp->seq_lock);
 913                         if (retval == EINTR)
 914                                 goto err1;
 915                 }
 916
 917                 used = MIN(MIDIQ_LEN(scp->in_q), uio->uio_resid);
 918                 used = MIN(used, SEQ_RSIZE);
 919
 920                 SEQ_DEBUG(8, printf("midiread: uiomove cc=%d\n", used));
 921                 MIDIQ_DEQ(scp->in_q, buf, used);
 922                 retval = uiomove(buf, used, uio);
 923                 if (retval)
 924                         goto err1;
 925         }
 926
 927         retval = 0;
 928 err1:
 929         mtx_unlock(&scp->seq_lock);
 930         SEQ_DEBUG(6, printf("seq_read: ret %d, resid %zd.\n",
 931             retval, uio->uio_resid));
 932
 933         return retval;
 934 }
 935
 936 int
 937 seq_write(struct cdev *i_dev, struct uio *uio, int ioflag)
 938 {
 939         u_char event[EV_SZ], newevent[EV_SZ], ev_code;
 940         struct seq_softc *scp = i_dev->si_drv1;
 941         int retval;
 942         int used;
 943
 944         SEQ_DEBUG(7, printf("seq_write: unit %d, resid %zd.\n",
 945             scp->unit, uio->uio_resid));
 946
 947         if (scp == NULL)
 948                 return ENXIO;
 949
 950         mtx_lock(&scp->seq_lock);
 951
 952         if ((scp->fflags & FWRITE) == 0) {
 953                 SEQ_DEBUG(2, printf("seq_write: unit %d is not for writing.\n",
 954                     scp->unit));
 955                 retval = EIO;
 956                 goto err0;
 957         }
 958         while (uio->uio_resid > 0) {
 959                 while (MIDIQ_AVAIL(scp->out_q) == 0) {
 960                         retval = EWOULDBLOCK;
 961                         if (scp->fflags & O_NONBLOCK)
 962                                 goto err0;
 963                         if (ioflag & O_NONBLOCK)
 964                                 goto err0;
 965                         SEQ_DEBUG(8, printf("seq_write cvwait\n"));
 966
 967                         scp->playing = 1;
 968                         cv_broadcast(&scp->out_cv);
 969                         cv_broadcast(&scp->state_cv);
 970
 971                         retval = cv_wait_sig(&scp->out_cv, &scp->seq_lock);
 972                         /*
 973                          * We slept, maybe things have changed since last
 974                          * dying check
 975                          */
 976                         if (retval == EINTR)
 977                                 goto err0;
 978 #if 0
 979                         /*
 980                          * Useless test
 981                          */
 982                         if (scp != i_dev->si_drv1)
 983                                 retval = ENXIO;
 984 #endif
 985                 }
 986
 987                 used = MIN(uio->uio_resid, 4);
 988
 989                 SEQ_DEBUG(8, printf("seqout: resid %zd len %jd avail %jd\n",
 990                     uio->uio_resid, (intmax_t)MIDIQ_LEN(scp->out_q),
 991                     (intmax_t)MIDIQ_AVAIL(scp->out_q)));
 992
 993                 if (used != 4) {
 994                         retval = ENXIO;
 995                         goto err0;
 996                 }
 997                 retval = uiomove(event, used, uio);
 998                 if (retval)
 999                         goto err0;
1000
1001                 ev_code = event[0];
1002                 SEQ_DEBUG(8, printf("seq_write: unit %d, event %s.\n",
1003                     scp->unit, midi_cmdname(ev_code, cmdtab_seqevent)));
1004
1005                 /* Have a look at the event code. */
1006                 if (ev_code == SEQ_FULLSIZE) {
1007
1008                         /*
1009                          * TODO: restore code for SEQ_FULLSIZE
1010                          */
1011 #if 0
1012                         /*
1013                          * A long event, these are the patches/samples for a
1014                          * synthesizer.
1015                          */
1016                         midiunit = *(u_short *)&event[2];
1017                         mtx_lock(&sd->seq_lock);
1018                         ret = lookup_mididev(scp, midiunit, LOOKUP_OPEN, &md);
1019                         mtx_unlock(&sd->seq_lock);
1020                         if (ret != 0)
1021                                 return (ret);
1022
1023                         SEQ_DEBUG(printf("seq_write: loading a patch to the unit %d.\n", midiunit));
1024
1025                         ret = md->synth.loadpatch(md, *(short *)&event[0], buf,
1026                             p + 4, count, 0);
1027                         return (ret);
1028 #else
1029                         /*
1030                          * For now, just flush the darn buffer
1031                          */
1032                         SEQ_DEBUG(2,
1033                            printf("seq_write: SEQ_FULLSIZE flusing buffer.\n"));
1034                         while (uio->uio_resid > 0) {
1035                                 retval = uiomove(event, EV_SZ, uio);
1036                                 if (retval)
1037                                         goto err0;
1038
1039                         }
1040                         retval = 0;
1041                         goto err0;
1042 #endif
1043                 }
1044                 retval = EINVAL;
1045                 if (ev_code >= 128) {
1046
1047                         /*
1048                          * Some sort of an extended event. The size is eight
1049                          * bytes. scoop extra info.
1050                          */
1051                         if (scp->music && ev_code == SEQ_EXTENDED) {
1052                                 SEQ_DEBUG(2, printf("seq_write: invalid level two event %x.\n", ev_code));
1053                                 goto err0;
1054                         }
1055                         if (uiomove((caddr_t)&event[4], 4, uio)) {
1056                                 SEQ_DEBUG(2,
1057                                    printf("seq_write: user memory mangled?\n"));
1058                                 goto err0;
1059                         }
1060                 } else {
1061                         /*
1062                          * Size four event.
1063                          */
1064                         if (scp->music) {
1065                                 SEQ_DEBUG(2, printf("seq_write: four byte event in music mode.\n"));
1066                                 goto err0;
1067                         }
1068                 }
1069                 if (ev_code == SEQ_MIDIPUTC) {
1070                         /*
1071                          * TODO: event[2] is unit number to receive char.
1072                          * Range check it.
1073                          */
1074                 }
1075                 if (scp->music) {
1076 #ifdef not_ever_ever
1077                         if (event[0] == EV_TIMING &&
1078                             (event[1] == TMR_START || event[1] == TMR_STOP)) {
1079                                 /*
1080                                  * For now, try to make midimoutain work by
1081                                  * forcing these events to be processed
1082                                  * immediatly.
1083                                  */
1084                                 seq_processevent(scp, event);
1085                         } else
1086                                 MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1087 #else
1088                         MIDIQ_ENQ(scp->out_q, event, EV_SZ);
1089 #endif
1090                 } else {
1091                         if (seq_convertold(event, newevent) > 0)
1092                                 MIDIQ_ENQ(scp->out_q, newevent, EV_SZ);
1093 #if 0
1094                         else
1095                                 goto err0;
1096 #endif
1097                 }
1098
1099         }
1100
1101         scp->playing = 1;
1102         cv_broadcast(&scp->state_cv);
1103         cv_broadcast(&scp->out_cv);
1104
1105         retval = 0;
1106
1107 err0:
1108         SEQ_DEBUG(6,
1109             printf("seq_write done: leftover buffer length %zd retval %d\n",
1110             uio->uio_resid, retval));
1111         mtx_unlock(&scp->seq_lock);
1112         return retval;
1113 }
1114
1115 int
1116 seq_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
1117     struct thread *td)
1118 {
1119         int midiunit, ret, tmp;
1120         struct seq_softc *scp = i_dev->si_drv1;
1121         struct synth_info *synthinfo;
1122         struct midi_info *midiinfo;
1123         u_char event[EV_SZ];
1124         u_char newevent[EV_SZ];
1125
1126         kobj_t md;
1127
1128         /*
1129          * struct snd_size *sndsize;
1130          */
1131
1132         if (scp == NULL)
1133                 return ENXIO;
1134
1135         SEQ_DEBUG(6, printf("seq_ioctl: unit %d, cmd %s.\n",
1136             scp->unit, midi_cmdname(cmd, cmdtab_seqioctl)));
1137
1138         ret = 0;
1139
1140         switch (cmd) {
1141         case SNDCTL_SEQ_GETTIME:
1142                 /*
1143                  * ioctl needed by libtse
1144                  */
1145                 mtx_lock(&scp->seq_lock);
1146                 *(int *)arg = timer_now(scp);
1147                 mtx_unlock(&scp->seq_lock);
1148                 SEQ_DEBUG(6, printf("seq_ioctl: gettime %d.\n", *(int *)arg));
1149                 ret = 0;
1150                 break;
1151         case SNDCTL_TMR_METRONOME:
1152                 /* fallthrough */
1153         case SNDCTL_TMR_SOURCE:
1154                 /*
1155                  * Not implemented
1156                  */
1157                 ret = 0;
1158                 break;
1159         case SNDCTL_TMR_TEMPO:
1160                 event[1] = TMR_TEMPO;
1161                 event[4] = *(int *)arg & 0xFF;
1162                 event[5] = (*(int *)arg >> 8) & 0xFF;
1163                 event[6] = (*(int *)arg >> 16) & 0xFF;
1164                 event[7] = (*(int *)arg >> 24) & 0xFF;
1165                 goto timerevent;
1166         case SNDCTL_TMR_TIMEBASE:
1167                 event[1] = TMR_TIMERBASE;
1168                 event[4] = *(int *)arg & 0xFF;
1169                 event[5] = (*(int *)arg >> 8) & 0xFF;
1170                 event[6] = (*(int *)arg >> 16) & 0xFF;
1171                 event[7] = (*(int *)arg >> 24) & 0xFF;
1172                 goto timerevent;
1173         case SNDCTL_TMR_START:
1174                 event[1] = TMR_START;
1175                 goto timerevent;
1176         case SNDCTL_TMR_STOP:
1177                 event[1] = TMR_STOP;
1178                 goto timerevent;
1179         case SNDCTL_TMR_CONTINUE:
1180                 event[1] = TMR_CONTINUE;
1181 timerevent:
1182                 event[0] = EV_TIMING;
1183                 mtx_lock(&scp->seq_lock);
1184                 if (!scp->music) {
1185                         ret = EINVAL;
1186                         mtx_unlock(&scp->seq_lock);
1187                         break;
1188                 }
1189                 seq_processevent(scp, event);
1190                 mtx_unlock(&scp->seq_lock);
1191                 break;
1192         case SNDCTL_TMR_SELECT:
1193                 SEQ_DEBUG(2,
1194                     printf("seq_ioctl: SNDCTL_TMR_SELECT not supported\n"));
1195                 ret = EINVAL;
1196                 break;
1197         case SNDCTL_SEQ_SYNC:
1198                 if (mode == O_RDONLY) {
1199                         ret = 0;
1200                         break;
1201                 }
1202                 mtx_lock(&scp->seq_lock);
1203                 ret = seq_sync(scp);
1204                 mtx_unlock(&scp->seq_lock);
1205                 break;
1206         case SNDCTL_SEQ_PANIC:
1207                 /* fallthrough */
1208         case SNDCTL_SEQ_RESET:
1209                 /*
1210                  * SNDCTL_SEQ_PANIC == SNDCTL_SEQ_RESET
1211                  */
1212                 mtx_lock(&scp->seq_lock);
1213                 seq_reset(scp);
1214                 mtx_unlock(&scp->seq_lock);
1215                 ret = 0;
1216                 break;
1217         case SNDCTL_SEQ_TESTMIDI:
1218                 mtx_lock(&scp->seq_lock);
1219                 /*
1220                  * TODO: SNDCTL_SEQ_TESTMIDI now means "can I write to the
1221                  * device?".
1222                  */
1223                 mtx_unlock(&scp->seq_lock);
1224                 break;
1225 #if 0
1226         case SNDCTL_SEQ_GETINCOUNT:
1227                 if (mode == O_WRONLY)
1228                         *(int *)arg = 0;
1229                 else {
1230                         mtx_lock(&scp->seq_lock);
1231                         *(int *)arg = scp->in_q.rl;
1232                         mtx_unlock(&scp->seq_lock);
1233                         SEQ_DEBUG(printf("seq_ioctl: incount %d.\n",
1234                             *(int *)arg));
1235                 }
1236                 ret = 0;
1237                 break;
1238         case SNDCTL_SEQ_GETOUTCOUNT:
1239                 if (mode == O_RDONLY)
1240                         *(int *)arg = 0;
1241                 else {
1242                         mtx_lock(&scp->seq_lock);
1243                         *(int *)arg = scp->out_q.fl;
1244                         mtx_unlock(&scp->seq_lock);
1245                         SEQ_DEBUG(printf("seq_ioctl: outcount %d.\n",
1246                             *(int *)arg));
1247                 }
1248                 ret = 0;
1249                 break;
1250 #endif
1251         case SNDCTL_SEQ_CTRLRATE:
1252                 if (*(int *)arg != 0) {
1253                         ret = EINVAL;
1254                         break;
1255                 }
1256                 mtx_lock(&scp->seq_lock);
1257                 *(int *)arg = scp->timerbase;
1258                 mtx_unlock(&scp->seq_lock);
1259                 SEQ_DEBUG(3, printf("seq_ioctl: ctrlrate %d.\n", *(int *)arg));
1260                 ret = 0;
1261                 break;
1262                 /*
1263                  * TODO: ioctl SNDCTL_SEQ_RESETSAMPLES
1264                  */
1265 #if 0
1266         case SNDCTL_SEQ_RESETSAMPLES:
1267                 mtx_lock(&scp->seq_lock);
1268                 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1269                 mtx_unlock(&scp->seq_lock);
1270                 if (ret != 0)
1271                         break;
1272                 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1273                     SND_DEV_MIDIN), cmd, arg, mode, td);
1274                 break;
1275 #endif
1276         case SNDCTL_SEQ_NRSYNTHS:
1277                 mtx_lock(&scp->seq_lock);
1278                 *(int *)arg = scp->midi_number;
1279                 mtx_unlock(&scp->seq_lock);
1280                 SEQ_DEBUG(3, printf("seq_ioctl: synths %d.\n", *(int *)arg));
1281                 ret = 0;
1282                 break;
1283         case SNDCTL_SEQ_NRMIDIS:
1284                 mtx_lock(&scp->seq_lock);
1285                 if (scp->music)
1286                         *(int *)arg = 0;
1287                 else {
1288                         /*
1289                          * TODO: count the numbder of devices that can WRITERAW
1290                          */
1291                         *(int *)arg = scp->midi_number;
1292                 }
1293                 mtx_unlock(&scp->seq_lock);
1294                 SEQ_DEBUG(3, printf("seq_ioctl: midis %d.\n", *(int *)arg));
1295                 ret = 0;
1296                 break;
1297                 /*
1298                  * TODO: ioctl SNDCTL_SYNTH_MEMAVL
1299                  */
1300 #if 0
1301         case SNDCTL_SYNTH_MEMAVL:
1302                 mtx_lock(&scp->seq_lock);
1303                 ret = lookup_mididev(scp, *(int *)arg, LOOKUP_OPEN, &md);
1304                 mtx_unlock(&scp->seq_lock);
1305                 if (ret != 0)
1306                         break;
1307                 ret = midi_ioctl(MIDIMKDEV(major(i_dev), *(int *)arg,
1308                     SND_DEV_MIDIN), cmd, arg, mode, td);
1309                 break;
1310 #endif
1311         case SNDCTL_SEQ_OUTOFBAND:
1312                 for (ret = 0; ret < EV_SZ; ret++)
1313                         event[ret] = (u_char)arg[0];
1314
1315                 mtx_lock(&scp->seq_lock);
1316                 if (scp->music)
1317                         ret = seq_processevent(scp, event);
1318                 else {
1319                         if (seq_convertold(event, newevent) > 0)
1320                                 ret = seq_processevent(scp, newevent);
1321                         else
1322                                 ret = EINVAL;
1323                 }
1324                 mtx_unlock(&scp->seq_lock);
1325                 break;
1326         case SNDCTL_SYNTH_INFO:
1327                 synthinfo = (struct synth_info *)arg;
1328                 midiunit = synthinfo->device;
1329                 mtx_lock(&scp->seq_lock);
1330                 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1331                         bzero(synthinfo, sizeof(*synthinfo));
1332                         synthinfo->name[0] = 'f';
1333                         synthinfo->name[1] = 'a';
1334                         synthinfo->name[2] = 'k';
1335                         synthinfo->name[3] = 'e';
1336                         synthinfo->name[4] = 's';
1337                         synthinfo->name[5] = 'y';
1338                         synthinfo->name[6] = 'n';
1339                         synthinfo->name[7] = 't';
1340                         synthinfo->name[8] = 'h';
1341                         synthinfo->device = midiunit;
1342                         synthinfo->synth_type = SYNTH_TYPE_MIDI;
1343                         synthinfo->capabilities = scp->midi_flags[midiunit];
1344                         ret = 0;
1345                 } else
1346                         ret = EINVAL;
1347                 mtx_unlock(&scp->seq_lock);
1348                 break;
1349         case SNDCTL_MIDI_INFO:
1350                 midiinfo = (struct midi_info *)arg;
1351                 midiunit = midiinfo->device;
1352                 mtx_lock(&scp->seq_lock);
1353                 if (seq_fetch_mid(scp, midiunit, &md) == 0) {
1354                         bzero(midiinfo, sizeof(*midiinfo));
1355                         midiinfo->name[0] = 'f';
1356                         midiinfo->name[1] = 'a';
1357                         midiinfo->name[2] = 'k';
1358                         midiinfo->name[3] = 'e';
1359                         midiinfo->name[4] = 'm';
1360                         midiinfo->name[5] = 'i';
1361                         midiinfo->name[6] = 'd';
1362                         midiinfo->name[7] = 'i';
1363                         midiinfo->device = midiunit;
1364                         midiinfo->capabilities = scp->midi_flags[midiunit];
1365                         /*
1366                          * TODO: What devtype?
1367                          */
1368                         midiinfo->dev_type = 0x01;
1369                         ret = 0;
1370                 } else
1371                         ret = EINVAL;
1372                 mtx_unlock(&scp->seq_lock);
1373                 break;
1374         case SNDCTL_SEQ_THRESHOLD:
1375                 mtx_lock(&scp->seq_lock);
1376                 RANGE(*(int *)arg, 1, MIDIQ_SIZE(scp->out_q) - 1);
1377                 scp->out_water = *(int *)arg;
1378                 mtx_unlock(&scp->seq_lock);
1379                 SEQ_DEBUG(3, printf("seq_ioctl: water %d.\n", *(int *)arg));
1380                 ret = 0;
1381                 break;
1382         case SNDCTL_MIDI_PRETIME:
1383                 tmp = *(int *)arg;
1384                 if (tmp < 0)
1385                         tmp = 0;
1386                 mtx_lock(&scp->seq_lock);
1387                 scp->pre_event_timeout = (hz * tmp) / 10;
1388                 *(int *)arg = scp->pre_event_timeout;
1389                 mtx_unlock(&scp->seq_lock);
1390                 SEQ_DEBUG(3, printf("seq_ioctl: pretime %d.\n", *(int *)arg));
1391                 ret = 0;
1392                 break;
1393         case SNDCTL_FM_4OP_ENABLE:
1394         case SNDCTL_PMGR_IFACE:
1395         case SNDCTL_PMGR_ACCESS:
1396                 /*
1397                  * Patch manager and fm are ded, ded, ded.
1398                  */
1399                 /* fallthrough */
1400         default:
1401                 /*
1402                  * TODO: Consider ioctl default case.
1403                  * Old code used to
1404                  * if ((scp->fflags & O_ACCMODE) == FREAD) {
1405                  *      ret = EIO;
1406                  *      break;
1407                  * }
1408                  * Then pass on the ioctl to device 0
1409                  */
1410                 SEQ_DEBUG(2,
1411                     printf("seq_ioctl: unsupported IOCTL %ld.\n", cmd));
1412                 ret = EINVAL;
1413                 break;
1414         }
1415
1416         return ret;
1417 }
1418
1419 int
1420 seq_poll(struct cdev *i_dev, int events, struct thread *td)
1421 {
1422         int ret, lim;
1423         struct seq_softc *scp = i_dev->si_drv1;
1424
1425         SEQ_DEBUG(3, printf("seq_poll: unit %d.\n", scp->unit));
1426         SEQ_DEBUG(1, printf("seq_poll: unit %d.\n", scp->unit));
1427
1428         mtx_lock(&scp->seq_lock);
1429
1430         ret = 0;
1431
1432         /* Look up the apropriate queue and select it. */
1433         if ((events & (POLLOUT | POLLWRNORM)) != 0) {
1434                 /* Start playing. */
1435                 scp->playing = 1;
1436                 cv_broadcast(&scp->state_cv);
1437                 cv_broadcast(&scp->out_cv);
1438
1439                 lim = scp->out_water;
1440
1441                 if (MIDIQ_AVAIL(scp->out_q) < lim)
1442                         /* No enough space, record select. */
1443                         selrecord(td, &scp->out_sel);
1444                 else
1445                         /* We can write now. */
1446                         ret |= events & (POLLOUT | POLLWRNORM);
1447         }
1448         if ((events & (POLLIN | POLLRDNORM)) != 0) {
1449                 /* TODO: Start recording. */
1450
1451                 /* Find out the boundary. */
1452                 lim = 1;
1453                 if (MIDIQ_LEN(scp->in_q) < lim)
1454                         /* No data ready, record select. */
1455                         selrecord(td, &scp->in_sel);
1456                 else
1457                         /* We can read now. */
1458                         ret |= events & (POLLIN | POLLRDNORM);
1459         }
1460         mtx_unlock(&scp->seq_lock);
1461
1462         return (ret);
1463 }
1464
1465 #if 0
1466 static void
1467 sein_qtr(void *p, void /* mididev_info */ *md)
1468 {
1469         struct seq_softc *scp;
1470
1471         scp = (struct seq_softc *)p;
1472
1473         mtx_lock(&scp->seq_lock);
1474
1475         /* Restart playing if we have the data to output. */
1476         if (scp->queueout_pending)
1477                 seq_callback(scp, SEQ_CB_START | SEQ_CB_WR);
1478         /* Check the midi device if we are reading. */
1479         if ((scp->flags & SEQ_F_READING) != 0)
1480                 seq_midiinput(scp, md);
1481
1482         mtx_unlock(&scp->seq_lock);
1483 }
1484
1485 #endif
1486 /*
1487  * seq_convertold
1488  * Was the old playevent.  Use this to convert and old
1489  * style /dev/sequencer event to a /dev/music event
1490  */
1491 static int
1492 seq_convertold(u_char *event, u_char *out)
1493 {
1494         int used;
1495         u_char dev, chn, note, vel;
1496
1497         out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] =
1498             out[7] = 0;
1499
1500         dev = 0;
1501         chn = event[1];
1502         note = event[2];
1503         vel = event[3];
1504
1505         used = 0;
1506
1507 restart:
1508         /*
1509          * TODO: Debug statement
1510          */
1511         switch (event[0]) {
1512         case EV_TIMING:
1513         case EV_CHN_VOICE:
1514         case EV_CHN_COMMON:
1515         case EV_SYSEX:
1516         case EV_SEQ_LOCAL:
1517                 out[0] = event[0];
1518                 out[1] = event[1];
1519                 out[2] = event[2];
1520                 out[3] = event[3];
1521                 out[4] = event[4];
1522                 out[5] = event[5];
1523                 out[6] = event[6];
1524                 out[7] = event[7];
1525                 used += 8;
1526                 break;
1527         case SEQ_NOTEOFF:
1528                 out[0] = EV_CHN_VOICE;
1529                 out[1] = dev;
1530                 out[2] = MIDI_NOTEOFF;
1531                 out[3] = chn;
1532                 out[4] = note;
1533                 out[5] = 255;
1534                 used += 4;
1535                 break;
1536
1537         case SEQ_NOTEON:
1538                 out[0] = EV_CHN_VOICE;
1539                 out[1] = dev;
1540                 out[2] = MIDI_NOTEON;
1541                 out[3] = chn;
1542                 out[4] = note;
1543                 out[5] = vel;
1544                 used += 4;
1545                 break;
1546
1547                 /*
1548                  * wait delay = (event[2] << 16) + (event[3] << 8) + event[4]
1549                  */
1550
1551         case SEQ_PGMCHANGE:
1552                 out[0] = EV_CHN_COMMON;
1553                 out[1] = dev;
1554                 out[2] = MIDI_PGM_CHANGE;
1555                 out[3] = chn;
1556                 out[4] = note;
1557                 out[5] = vel;
1558                 used += 4;
1559                 break;
1560 /*
1561                 out[0] = EV_TIMING;
1562                 out[1] = dev;
1563                 out[2] = MIDI_PGM_CHANGE;
1564                 out[3] = chn;
1565                 out[4] = note;
1566                 out[5] = vel;
1567                 SEQ_DEBUG(4,printf("seq_playevent: synctimer\n"));
1568                 break;
1569 */
1570
1571         case SEQ_MIDIPUTC:
1572                 SEQ_DEBUG(4,
1573                     printf("seq_playevent: put data 0x%02x, unit %d.\n",
1574                     event[1], event[2]));
1575                 /*
1576                  * Pass through to the midi device.
1577                  * device = event[2]
1578                  * data = event[1]
1579                  */
1580                 out[0] = SEQ_MIDIPUTC;
1581                 out[1] = dev;
1582                 out[2] = chn;
1583                 used += 4;
1584                 break;
1585 #ifdef notyet
1586         case SEQ_ECHO:
1587                 /*
1588                  * This isn't handled here yet because I don't know if I can
1589                  * just use four bytes events.  There might be consequences
1590                  * in the _read routing
1591                  */
1592                 if (seq_copytoinput(scp, event, 4) == EAGAIN) {
1593                         ret = QUEUEFULL;
1594                         break;
1595                 }
1596                 ret = MORE;
1597                 break;
1598 #endif
1599         case SEQ_EXTENDED:
1600                 switch (event[1]) {
1601                 case SEQ_NOTEOFF:
1602                 case SEQ_NOTEON:
1603                 case SEQ_PGMCHANGE:
1604                         event++;
1605                         used = 4;
1606                         goto restart;
1607                         break;
1608                 case SEQ_AFTERTOUCH:
1609                         /*
1610                          * SYNTH_AFTERTOUCH(md, event[3], event[4])
1611                          */
1612                 case SEQ_BALANCE:
1613                         /*
1614                          * SYNTH_PANNING(md, event[3], (char)event[4])
1615                          */
1616                 case SEQ_CONTROLLER:
1617                         /*
1618                          * SYNTH_CONTROLLER(md, event[3], event[4], *(short *)&event[5])
1619                          */
1620                 case SEQ_VOLMODE:
1621                         /*
1622                          * SYNTH_VOLUMEMETHOD(md, event[3])
1623                          */
1624                 default:
1625                         SEQ_DEBUG(2,
1626                             printf("seq_convertold: SEQ_EXTENDED type %d"
1627                             "not handled\n", event[1]));
1628                         break;
1629                 }
1630                 break;
1631         case SEQ_WAIT:
1632                 out[0] = EV_TIMING;
1633                 out[1] = TMR_WAIT_REL;
1634                 out[4] = event[2];
1635                 out[5] = event[3];
1636                 out[6] = event[4];
1637
1638                 SEQ_DEBUG(5, printf("SEQ_WAIT %d",
1639                     event[2] + (event[3] << 8) + (event[4] << 24)));
1640
1641                 used += 4;
1642                 break;
1643
1644         case SEQ_ECHO:
1645         case SEQ_SYNCTIMER:
1646         case SEQ_PRIVATE:
1647         default:
1648                 SEQ_DEBUG(2,
1649                   printf("seq_convertold: event type %d not handled %d %d %d\n",
1650                     event[0], event[1], event[2], event[3]));
1651                 break;
1652         }
1653         return used;
1654 }
1655
1656 /*
1657  * Writting to the sequencer buffer never blocks and drops
1658  * input which cannot be queued
1659  */
1660 void
1661 seq_copytoinput(struct seq_softc *scp, u_char *event, int len)
1662 {
1663
1664         mtx_assert(&scp->seq_lock, MA_OWNED);
1665
1666         if (MIDIQ_AVAIL(scp->in_q) < len) {
1667                 /*
1668                  * ENOROOM?  EINPUTDROPPED? ETOUGHLUCK?
1669                  */
1670                 SEQ_DEBUG(2, printf("seq_copytoinput: queue full\n"));
1671         } else {
1672                 MIDIQ_ENQ(scp->in_q, event, len);
1673                 selwakeup(&scp->in_sel);
1674                 cv_broadcast(&scp->in_cv);
1675         }
1676
1677 }
1678
1679 static int
1680 seq_chnvoice(struct seq_softc *scp, kobj_t md, u_char *event)
1681 {
1682         int ret, voice;
1683         u_char cmd, chn, note, parm;
1684
1685         ret = 0;
1686         cmd = event[2];
1687         chn = event[3];
1688         note = event[4];
1689         parm = event[5];
1690
1691         mtx_assert(&scp->seq_lock, MA_OWNED);
1692
1693         SEQ_DEBUG(5, printf("seq_chnvoice: unit %d, dev %d, cmd %s,"
1694             " chn %d, note %d, parm %d.\n", scp->unit, event[1],
1695             midi_cmdname(cmd, cmdtab_seqcv), chn, note, parm));
1696
1697         voice = SYNTH_ALLOC(md, chn, note);
1698
1699         mtx_unlock(&scp->seq_lock);
1700
1701         switch (cmd) {
1702         case MIDI_NOTEON:
1703                 if (note < 128 || note == 255) {
1704 #if 0
1705                         if (scp->music && chn == 9) {
1706                                 /*
1707                                  * This channel is a percussion. The note
1708                                  * number is the patch number.
1709                                  */
1710                                 /*
1711                                 mtx_unlock(&scp->seq_lock);
1712                                 if (SYNTH_SETINSTR(md, voice, 128 + note)
1713                                     == EAGAIN) {
1714                                         mtx_lock(&scp->seq_lock);
1715                                         return (QUEUEFULL);
1716                                 }
1717                                 mtx_lock(&scp->seq_lock);
1718                                 */
1719                                 note = 60;      /* Middle C. */
1720                         }
1721 #endif
1722                         if (scp->music) {
1723                                 /*
1724                                 mtx_unlock(&scp->seq_lock);
1725                                 if (SYNTH_SETUPVOICE(md, voice, chn)
1726                                     == EAGAIN) {
1727                                         mtx_lock(&scp->seq_lock);
1728                                         return (QUEUEFULL);
1729                                 }
1730                                 mtx_lock(&scp->seq_lock);
1731                                 */
1732                         }
1733                         SYNTH_STARTNOTE(md, voice, note, parm);
1734                 }
1735                 break;
1736         case MIDI_NOTEOFF:
1737                 SYNTH_KILLNOTE(md, voice, note, parm);
1738                 break;
1739         case MIDI_KEY_PRESSURE:
1740                 SYNTH_AFTERTOUCH(md, voice, parm);
1741                 break;
1742         default:
1743                 ret = 1;
1744                 SEQ_DEBUG(2, printf("seq_chnvoice event type %d not handled\n",
1745                     event[1]));
1746                 break;
1747         }
1748
1749         mtx_lock(&scp->seq_lock);
1750         return ret;
1751 }
1752
1753 static int
1754 seq_chncommon(struct seq_softc *scp, kobj_t md, u_char *event)
1755 {
1756         int ret;
1757         u_short w14;
1758         u_char cmd, chn, p1;
1759
1760         ret = 0;
1761         cmd = event[2];
1762         chn = event[3];
1763         p1 = event[4];
1764         w14 = *(u_short *)&event[6];
1765
1766         SEQ_DEBUG(5, printf("seq_chncommon: unit %d, dev %d, cmd %s, chn %d,"
1767             " p1 %d, w14 %d.\n", scp->unit, event[1],
1768             midi_cmdname(cmd, cmdtab_seqccmn), chn, p1, w14));
1769         mtx_unlock(&scp->seq_lock);
1770         switch (cmd) {
1771         case MIDI_PGM_CHANGE:
1772                 SEQ_DEBUG(4, printf("seq_chncommon pgmchn chn %d pg %d\n",
1773                     chn, p1));
1774                 SYNTH_SETINSTR(md, chn, p1);
1775                 break;
1776         case MIDI_CTL_CHANGE:
1777                 SEQ_DEBUG(4, printf("seq_chncommon ctlch chn %d pg %d %d\n",
1778                     chn, p1, w14));
1779                 SYNTH_CONTROLLER(md, chn, p1, w14);
1780                 break;
1781         case MIDI_PITCH_BEND:
1782                 if (scp->music) {
1783                         /*
1784                          * TODO: MIDI_PITCH_BEND
1785                          */
1786 #if 0
1787                         mtx_lock(&md->synth.vc_mtx);
1788                         md->synth.chn_info[chn].bender_value = w14;
1789                         if (md->midiunit >= 0) {
1790                                 /*
1791                                  * Handle all of the notes playing on this
1792                                  * channel.
1793                                  */
1794                                 key = ((int)chn << 8);
1795                                 for (i = 0; i < md->synth.alloc.max_voice; i++)
1796                                         if ((md->synth.alloc.map[i] & 0xff00) == key) {
1797                                                 mtx_unlock(&md->synth.vc_mtx);
1798                                                 mtx_unlock(&scp->seq_lock);
1799                                                 if (md->synth.bender(md, i, w14) == EAGAIN) {
1800                                                         mtx_lock(&scp->seq_lock);
1801                                                         return (QUEUEFULL);
1802                                                 }
1803                                                 mtx_lock(&scp->seq_lock);
1804                                         }
1805                         } else {
1806                                 mtx_unlock(&md->synth.vc_mtx);
1807                                 mtx_unlock(&scp->seq_lock);
1808                                 if (md->synth.bender(md, chn, w14) == EAGAIN) {
1809                                         mtx_lock(&scp->seq_lock);
1810                                         return (QUEUEFULL);
1811                                 }
1812                                 mtx_lock(&scp->seq_lock);
1813                         }
1814 #endif
1815                 } else
1816                         SYNTH_BENDER(md, chn, w14);
1817                 break;
1818         default:
1819                 ret = 1;
1820                 SEQ_DEBUG(2,
1821                     printf("seq_chncommon event type %d not handled.\n",
1822                     event[1]));
1823                 break;
1824
1825         }
1826         mtx_lock(&scp->seq_lock);
1827         return ret;
1828 }
1829
1830 static int
1831 seq_timing(struct seq_softc *scp, u_char *event)
1832 {
1833         int param;
1834         int ret;
1835
1836         ret = 0;
1837         param = event[4] + (event[5] << 8) +
1838             (event[6] << 16) + (event[7] << 24);
1839
1840         SEQ_DEBUG(5, printf("seq_timing: unit %d, cmd %d, param %d.\n",
1841             scp->unit, event[1], param));
1842         switch (event[1]) {
1843         case TMR_WAIT_REL:
1844                 timer_wait(scp, param, 0);
1845                 break;
1846         case TMR_WAIT_ABS:
1847                 timer_wait(scp, param, 1);
1848                 break;
1849         case TMR_START:
1850                 timer_start(scp);
1851                 cv_broadcast(&scp->reset_cv);
1852                 break;
1853         case TMR_STOP:
1854                 timer_stop(scp);
1855                 /*
1856                  * The following cv_broadcast isn't needed since we only
1857                  * wait for 0->1 transitions.  It probably won't hurt
1858                  */
1859                 cv_broadcast(&scp->reset_cv);
1860                 break;
1861         case TMR_CONTINUE:
1862                 timer_continue(scp);
1863                 cv_broadcast(&scp->reset_cv);
1864                 break;
1865         case TMR_TEMPO:
1866                 if (param < 8)
1867                         param = 8;
1868                 if (param > 360)
1869                         param = 360;
1870                 SEQ_DEBUG(4, printf("Timer set tempo %d\n", param));
1871                 timer_setvals(scp, param, scp->timerbase);
1872                 break;
1873         case TMR_TIMERBASE:
1874                 if (param < 1)
1875                         param = 1;
1876                 if (param > 1000)
1877                         param = 1000;
1878                 SEQ_DEBUG(4, printf("Timer set timerbase %d\n", param));
1879                 timer_setvals(scp, scp->tempo, param);
1880                 break;
1881         case TMR_ECHO:
1882                 /*
1883                  * TODO: Consider making 4-byte events for /dev/sequencer
1884                  * PRO: Maybe needed by legacy apps
1885                  * CON: soundcard.h has been warning for a while many years
1886                  * to expect 8 byte events.
1887                  */
1888 #if 0
1889                 if (scp->music)
1890                         seq_copytoinput(scp, event, 8);
1891                 else {
1892                         param = (param << 8 | SEQ_ECHO);
1893                         seq_copytoinput(scp, (u_char *)&param, 4);
1894                 }
1895 #else
1896                 seq_copytoinput(scp, event, 8);
1897 #endif
1898                 break;
1899         default:
1900                 SEQ_DEBUG(2, printf("seq_timing event type %d not handled.\n",
1901                     event[1]));
1902                 ret = 1;
1903                 break;
1904         }
1905         return ret;
1906 }
1907
1908 static int
1909 seq_local(struct seq_softc *scp, u_char *event)
1910 {
1911         int ret;
1912
1913         ret = 0;
1914         mtx_assert(&scp->seq_lock, MA_OWNED);
1915
1916         SEQ_DEBUG(5, printf("seq_local: unit %d, cmd %d\n", scp->unit,
1917             event[1]));
1918         switch (event[1]) {
1919         default:
1920                 SEQ_DEBUG(1, printf("seq_local event type %d not handled\n",
1921                     event[1]));
1922                 ret = 1;
1923                 break;
1924         }
1925         return ret;
1926 }
1927
1928 static int
1929 seq_sysex(struct seq_softc *scp, kobj_t md, u_char *event)
1930 {
1931         int i, l;
1932
1933         mtx_assert(&scp->seq_lock, MA_OWNED);
1934         SEQ_DEBUG(5, printf("seq_sysex: unit %d device %d\n", scp->unit,
1935             event[1]));
1936         l = 0;
1937         for (i = 0; i < 6 && event[i + 2] != 0xff; i++)
1938                 l = i + 1;
1939         if (l > 0) {
1940                 mtx_unlock(&scp->seq_lock);
1941                 if (SYNTH_SENDSYSEX(md, &event[2], l) == EAGAIN) {
1942                         mtx_lock(&scp->seq_lock);
1943                         return 1;
1944                 }
1945                 mtx_lock(&scp->seq_lock);
1946         }
1947         return 0;
1948 }
1949
1950 /*
1951  * Reset no longer closes the raw devices nor seq_sync's
1952  * Callers are IOCTL and seq_close
1953  */
1954 static void
1955 seq_reset(struct seq_softc *scp)
1956 {
1957         int chn, i;
1958         kobj_t m;
1959
1960         mtx_assert(&scp->seq_lock, MA_OWNED);
1961
1962         SEQ_DEBUG(5, printf("seq_reset: unit %d.\n", scp->unit));
1963
1964         /*
1965          * Stop reading and writing.
1966          */
1967
1968         /* scp->recording = 0; */
1969         scp->playing = 0;
1970         cv_broadcast(&scp->state_cv);
1971         cv_broadcast(&scp->out_cv);
1972         cv_broadcast(&scp->reset_cv);
1973
1974         /*
1975          * For now, don't reset the timers.
1976          */
1977         MIDIQ_CLEAR(scp->in_q);
1978         MIDIQ_CLEAR(scp->out_q);
1979
1980         for (i = 0; i < scp->midi_number; i++) {
1981                 m = scp->midis[i];
1982                 mtx_unlock(&scp->seq_lock);
1983                 SYNTH_RESET(m);
1984                 for (chn = 0; chn < 16; chn++) {
1985                         SYNTH_CONTROLLER(m, chn, 123, 0);
1986                         SYNTH_CONTROLLER(m, chn, 121, 0);
1987                         SYNTH_BENDER(m, chn, 1 << 13);
1988                 }
1989                 mtx_lock(&scp->seq_lock);
1990         }
1991 }
1992
1993 /*
1994  * seq_sync
1995  * *really* flush the output queue
1996  * flush the event queue, then flush the synthsisers.
1997  * Callers are IOCTL and close
1998  */
1999
2000 #define SEQ_SYNC_TIMEOUT 8
2001 static int
2002 seq_sync(struct seq_softc *scp)
2003 {
2004         int i, rl, sync[16], done;
2005
2006         mtx_assert(&scp->seq_lock, MA_OWNED);
2007
2008         SEQ_DEBUG(4, printf("seq_sync: unit %d.\n", scp->unit));
2009
2010         /*
2011          * Wait until output queue is empty.  Check every so often to see if
2012          * the queue is moving along.  If it isn't just abort.
2013          */
2014         while (!MIDIQ_EMPTY(scp->out_q)) {
2015
2016                 if (!scp->playing) {
2017                         scp->playing = 1;
2018                         cv_broadcast(&scp->state_cv);
2019                         cv_broadcast(&scp->out_cv);
2020                 }
2021                 rl = MIDIQ_LEN(scp->out_q);
2022
2023                 i = cv_timedwait_sig(&scp->out_cv,
2024                     &scp->seq_lock, SEQ_SYNC_TIMEOUT * hz);
2025
2026                 if (i == EINTR || i == ERESTART) {
2027                         if (i == EINTR) {
2028                                 /*
2029                                  * XXX: I don't know why we stop playing
2030                                  */
2031                                 scp->playing = 0;
2032                                 cv_broadcast(&scp->out_cv);
2033                         }
2034                         return i;
2035                 }
2036                 if (i == EWOULDBLOCK && rl == MIDIQ_LEN(scp->out_q) &&
2037                     scp->waiting == 0) {
2038                         /*
2039                          * A queue seems to be stuck up. Give up and clear
2040                          * queues.
2041                          */
2042                         MIDIQ_CLEAR(scp->out_q);
2043                         scp->playing = 0;
2044                         cv_broadcast(&scp->state_cv);
2045                         cv_broadcast(&scp->out_cv);
2046                         cv_broadcast(&scp->reset_cv);
2047
2048                         /*
2049                          * TODO: Consider if the raw devices need to be flushed
2050                          */
2051
2052                         SEQ_DEBUG(1, printf("seq_sync queue stuck, aborting\n"));
2053
2054                         return i;
2055                 }
2056         }
2057
2058         scp->playing = 0;
2059         /*
2060          * Since syncing a midi device might block, unlock scp->seq_lock.
2061          */
2062
2063         mtx_unlock(&scp->seq_lock);
2064         for (i = 0; i < scp->midi_number; i++)
2065                 sync[i] = 1;
2066
2067         do {
2068                 done = 1;
2069                 for (i = 0; i < scp->midi_number; i++)
2070                         if (sync[i]) {
2071                                 if (SYNTH_INSYNC(scp->midis[i]) == 0)
2072                                         sync[i] = 0;
2073                                 else
2074                                         done = 0;
2075                         }
2076                 if (!done)
2077                         DELAY(5000);
2078
2079         } while (!done);
2080
2081         mtx_lock(&scp->seq_lock);
2082         return 0;
2083 }
2084
2085 char   *
2086 midi_cmdname(int cmd, midi_cmdtab *tab)
2087 {
2088         while (tab->name != NULL) {
2089                 if (cmd == tab->cmd)
2090                         return (tab->name);
2091                 tab++;
2092         }
2093
2094         return ("unknown");
2095 }