sys/dev/serial/digi/digi.c

   1 /*-
   2  * Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
   3  *   based on work by Slawa Olhovchenkov
   4  *                    John Prince <johnp@knight-trosoft.com>
   5  *                    Eric Hernes
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: src/sys/dev/digi/digi.c,v 1.36 2003/09/26 09:05:57 phk Exp $
  30  * $DragonFly: src/sys/dev/serial/digi/digi.c,v 1.11 2008/04/30 17:28:17 dillon Exp $
  31  */
  32
  33 /*-
  34  * TODO:
  35  *      Figure out what the con bios stuff is supposed to do
  36  *      Test with *LOTS* more cards - I only have a PCI8r and an ISA Xem.
  37  */
  38
  39 #include "opt_compat.h"
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/proc.h>
  44 #include <sys/priv.h>
  45 #include <sys/conf.h>
  46 #include <sys/linker.h>
  47 #include <sys/kernel.h>
  48 #include <sys/mbuf.h>
  49 #include <sys/malloc.h>
  50 #include <sys/tty.h>
  51 #include <sys/syslog.h>
  52 #include <sys/fcntl.h>
  53 #include <sys/bus.h>
  54 #include <sys/bus.h>
  55 #include <sys/thread2.h>
  56
  57 #include <vm/vm.h>
  58 #include <vm/pmap.h>
  59
  60 #include <dev/serial/digi/digiio.h>
  61 #include <dev/serial/digi/digireg.h>
  62 #include <dev/serial/digi/digi.h>
  63 #include <dev/serial/digi/digi_pci.h>
  64 #include <dev/serial/digi/digi_bios.h>
  65
  66 #define CDEV_MAJOR      162
  67
  68 #define CTRL_DEV                0x800000
  69 #define CALLOUT_MASK            0x400000
  70 #define CONTROL_INIT_STATE      0x100000
  71 #define CONTROL_LOCK_STATE      0x200000
  72 #define CONTROL_MASK            (CTRL_DEV|CONTROL_INIT_STATE|CONTROL_LOCK_STATE)
  73 #define UNIT_MASK               0x030000
  74 #define PORT_MASK               0x0000FF
  75 #define DEV_TO_UNIT(dev)        (MINOR_TO_UNIT(minor(dev)))
  76 #define MINOR_MAGIC_MASK        (CALLOUT_MASK | CONTROL_MASK)
  77 #define MINOR_TO_UNIT(mynor)    (((mynor) & UNIT_MASK)>>16)
  78 #define MINOR_TO_PORT(mynor)    ((mynor) & PORT_MASK)
  79
  80 static d_open_t         digiopen;
  81 static d_close_t        digiclose;
  82 static d_read_t         digiread;
  83 static d_write_t        digiwrite;
  84 static d_ioctl_t        digiioctl;
  85
  86 static void     digistop(struct tty *tp, int rw);
  87 static int      digimctl(struct digi_p *port, int bits, int how);
  88 static void     digi_poll(void *ptr);
  89 static void     digi_freedata(struct digi_softc *);
  90 static void     fepcmd(struct digi_p *port, int cmd, int op, int ncmds);
  91 static void     digistart(struct tty *tp);
  92 static int      digiparam(struct tty *tp, struct termios *t);
  93 static void     digihardclose(struct digi_p *port);
  94 static void     digi_intr(void *);
  95 static int      digi_init(struct digi_softc *_sc);
  96 static int      digi_loaddata(struct digi_softc *);
  97 static int      digi_inuse(struct digi_softc *);
  98 static void     digi_free_state(struct digi_softc *);
  99
 100 #define fepcmd_b(port, cmd, op1, op2, ncmds) \
 101         fepcmd(port, cmd, (op2 << 8) | op1, ncmds)
 102 #define fepcmd_w        fepcmd
 103
 104
 105 static speed_t digidefaultrate = TTYDEF_SPEED;
 106
 107 struct con_bios {
 108         struct con_bios *next;
 109         u_char *bios;
 110         size_t size;
 111 };
 112
 113 static struct con_bios *con_bios_list;
 114 devclass_t       digi_devclass;
 115 unsigned         digi_debug = 0;
 116
 117 static struct speedtab digispeedtab[] = {
 118         { 0,            0},                     /* old (sysV-like) Bx codes */
 119         { 50,           1},
 120         { 75,           2},
 121         { 110,          3},
 122         { 134,          4},
 123         { 150,          5},
 124         { 200,          6},
 125         { 300,          7},
 126         { 600,          8},
 127         { 1200,         9},
 128         { 1800,         10},
 129         { 2400,         11},
 130         { 4800,         12},
 131         { 9600,         13},
 132         { 19200,        14},
 133         { 38400,        15},
 134         { 57600,        (02000 | 1)},
 135         { 76800,        (02000 | 2)},
 136         { 115200,       (02000 | 3)},
 137         { 230400,       (02000 | 6)},
 138         { -1,           -1}
 139 };
 140
 141 const struct digi_control_signals digi_xixe_signals = {
 142         0x02, 0x08, 0x10, 0x20, 0x40, 0x80
 143 };
 144
 145 const struct digi_control_signals digi_normal_signals = {
 146         0x02, 0x80, 0x20, 0x10, 0x40, 0x01
 147 };
 148
 149 static struct dev_ops digi_ops = {
 150         { "dgm", CDEV_MAJOR, D_TTY },
 151         .d_open =       digiopen,
 152         .d_close =      digiclose,
 153         .d_read =       digiread,
 154         .d_write =      digiwrite,
 155         .d_ioctl =      digiioctl,
 156         .d_kqfilter =   ttykqfilter,
 157         .d_revoke =     ttyrevoke
 158 };
 159
 160 static void
 161 digi_poll(void *ptr)
 162 {
 163         struct digi_softc *sc;
 164
 165         sc = (struct digi_softc *)ptr;
 166         callout_init(&sc->callout);
 167         digi_intr(sc);
 168         callout_reset(&sc->callout, (hz >= 200) ? hz / 100 : 1, digi_poll, sc);
 169 }
 170
 171 static void
 172 digi_int_test(void *v)
 173 {
 174         struct digi_softc *sc = v;
 175
 176         callout_init(&sc->inttest);
 177 #ifdef DIGI_INTERRUPT
 178         if (sc->intr_timestamp.tv_sec || sc->intr_timestamp.tv_usec) {
 179                 /* interrupt OK! */
 180                 return;
 181         }
 182         log(LOG_ERR, "digi%d: Interrupt didn't work, use polled mode\n", unit);
 183 #endif
 184         callout_reset(&sc->callout, (hz >= 200) ? hz / 100 : 1, digi_poll, sc);
 185 }
 186
 187 static void
 188 digi_freedata(struct digi_softc *sc)
 189 {
 190         if (sc->fep.data != NULL) {
 191                 kfree(sc->fep.data, M_TTYS);
 192                 sc->fep.data = NULL;
 193         }
 194         if (sc->link.data != NULL) {
 195                 kfree(sc->link.data, M_TTYS);
 196                 sc->link.data = NULL;
 197         }
 198         if (sc->bios.data != NULL) {
 199                 kfree(sc->bios.data, M_TTYS);
 200                 sc->bios.data = NULL;
 201         }
 202 }
 203
 204 static int
 205 digi_bcopy(const void *vfrom, void *vto, size_t sz)
 206 {
 207         volatile const char *from = (volatile const char *)vfrom;
 208         volatile char *to = (volatile char *)vto;
 209         size_t i;
 210
 211         for (i = 0; i < sz; i++)
 212                 *to++ = *from++;
 213
 214         from = (const volatile char *)vfrom;
 215         to = (volatile char *)vto;
 216         for (i = 0; i < sz; i++)
 217                 if (*to++ != *from++)
 218                         return (0);
 219         return (1);
 220 }
 221
 222 void
 223 digi_delay(struct digi_softc *sc, const char *txt, u_long timo)
 224 {
 225         if (cold)
 226                 DELAY(timo * 1000000 / hz);
 227         else
 228                 tsleep(sc, PCATCH, txt, timo);
 229 }
 230
 231 static int
 232 digi_init(struct digi_softc *sc)
 233 {
 234         int i, cnt, resp;
 235         u_char *ptr;
 236         int lowwater;
 237         struct digi_p *port;
 238         volatile struct board_chan *bc;
 239
 240         ptr = NULL;
 241
 242         if (sc->status == DIGI_STATUS_DISABLED) {
 243                 log(LOG_ERR, "digi%d: Cannot init a disabled card\n",
 244                     sc->res.unit);
 245                 return (EIO);
 246         }
 247         if (sc->bios.data == NULL) {
 248                 log(LOG_ERR, "digi%d: Cannot init without BIOS\n",
 249                     sc->res.unit);
 250                 return (EIO);
 251         }
 252 #if 0
 253         if (sc->link.data == NULL && sc->model >= PCCX) {
 254                 log(LOG_ERR, "digi%d: Cannot init without link info\n",
 255                     sc->res.unit);
 256                 return (EIO);
 257         }
 258 #endif
 259         if (sc->fep.data == NULL) {
 260                 log(LOG_ERR, "digi%d: Cannot init without fep code\n",
 261                     sc->res.unit);
 262                 return (EIO);
 263         }
 264         sc->status = DIGI_STATUS_NOTINIT;
 265
 266         if (sc->numports) {
 267                 /*
 268                  * We're re-initialising - maybe because someone's attached
 269                  * another port module.  For now, we just re-initialise
 270                  * everything.
 271                  */
 272                 if (digi_inuse(sc))
 273                         return (EBUSY);
 274
 275                 digi_free_state(sc);
 276         }
 277
 278         ptr = sc->setwin(sc, MISCGLOBAL);
 279         for (i = 0; i < 16; i += 2)
 280                 vW(ptr + i) = 0;
 281
 282         switch (sc->model) {
 283         case PCXEVE:
 284                 outb(sc->wport, 0xff);          /* window 7 */
 285                 ptr = sc->vmem + (BIOSCODE & 0x1fff);
 286
 287                 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) {
 288                         device_printf(sc->dev, "BIOS upload failed\n");
 289                         return (EIO);
 290                 }
 291
 292                 outb(sc->port, FEPCLR);
 293                 break;
 294
 295         case PCXE:
 296         case PCXI:
 297         case PCCX:
 298                 ptr = sc->setwin(sc, BIOSCODE + ((0xf000 - sc->mem_seg) << 4));
 299                 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) {
 300                         device_printf(sc->dev, "BIOS upload failed\n");
 301                         return (EIO);
 302                 }
 303                 break;
 304
 305         case PCXEM:
 306         case PCIEPCX:
 307         case PCIXR:
 308                 if (sc->pcibus)
 309                         PCIPORT = FEPRST;
 310                 else
 311                         outb(sc->port, FEPRST | FEPMEM);
 312
 313                 for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) &
 314                     FEPMASK) != FEPRST; i++) {
 315                         if (i > hz) {
 316                                 log(LOG_ERR, "digi%d: %s init reset failed\n",
 317                                     sc->res.unit, sc->name);
 318                                 return (EIO);
 319                         }
 320                         digi_delay(sc, "digiinit0", 5);
 321                 }
 322                 DLOG(DIGIDB_INIT, (sc->dev, "Got init reset after %d us\n", i));
 323
 324                 /* Now upload the BIOS */
 325                 cnt = (sc->bios.size < sc->win_size - BIOSOFFSET) ?
 326                     sc->bios.size : sc->win_size - BIOSOFFSET;
 327
 328                 ptr = sc->setwin(sc, BIOSOFFSET);
 329                 if (!digi_bcopy(sc->bios.data, ptr, cnt)) {
 330                         device_printf(sc->dev, "BIOS upload (1) failed\n");
 331                         return (EIO);
 332                 }
 333
 334                 if (cnt != sc->bios.size) {
 335                         /* and the second part */
 336                         ptr = sc->setwin(sc, sc->win_size);
 337                         if (!digi_bcopy(sc->bios.data + cnt, ptr,
 338                             sc->bios.size - cnt)) {
 339                                 device_printf(sc->dev, "BIOS upload failed\n");
 340                                 return (EIO);
 341                         }
 342                 }
 343
 344                 ptr = sc->setwin(sc, 0);
 345                 vW(ptr + 0) = 0x0401;
 346                 vW(ptr + 2) = 0x0bf0;
 347                 vW(ptr + 4) = 0x0000;
 348                 vW(ptr + 6) = 0x0000;
 349
 350                 break;
 351         }
 352
 353         DLOG(DIGIDB_INIT, (sc->dev, "BIOS uploaded\n"));
 354
 355         ptr = sc->setwin(sc, MISCGLOBAL);
 356         W(ptr) = 0;
 357
 358         if (sc->pcibus) {
 359                 PCIPORT = FEPCLR;
 360                 resp = FEPRST;
 361         } else if (sc->model == PCXEVE) {
 362                 outb(sc->port, FEPCLR);
 363                 resp = FEPRST;
 364         } else {
 365                 outb(sc->port, FEPCLR | FEPMEM);
 366                 resp = FEPRST | FEPMEM;
 367         }
 368
 369         for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & FEPMASK)
 370             == resp; i++) {
 371                 if (i > hz) {
 372                         log(LOG_ERR, "digi%d: BIOS start failed\n",
 373                             sc->res.unit);
 374                         return (EIO);
 375                 }
 376                 digi_delay(sc, "digibios0", 5);
 377         }
 378
 379         DLOG(DIGIDB_INIT, (sc->dev, "BIOS started after %d us\n", i));
 380
 381         for (i = 0; vW(ptr) != *(u_short *)"GD"; i++) {
 382                 if (i > 2*hz) {
 383                         log(LOG_ERR, "digi%d: BIOS boot failed "
 384                             "(0x%02x != 0x%02x)\n",
 385                             sc->res.unit, vW(ptr), *(u_short *)"GD");
 386                         return (EIO);
 387                 }
 388                 digi_delay(sc, "digibios1", 5);
 389         }
 390
 391         DLOG(DIGIDB_INIT, (sc->dev, "BIOS booted after %d iterations\n", i));
 392
 393         if (sc->link.data != NULL) {
 394                 DLOG(DIGIDB_INIT, (sc->dev, "Loading link data\n"));
 395                 ptr = sc->setwin(sc, 0xcd0);
 396                 digi_bcopy(sc->link.data, ptr, 21);     /* XXX 21 ? */
 397         }
 398
 399         /* load FEP/OS */
 400
 401         switch (sc->model) {
 402         case PCXE:
 403         case PCXEVE:
 404         case PCXI:
 405                 ptr = sc->setwin(sc, sc->model == PCXI ? 0x2000 : 0x0);
 406                 digi_bcopy(sc->fep.data, ptr, sc->fep.size);
 407
 408                 /* A BIOS request to move our data to 0x2000 */
 409                 ptr = sc->setwin(sc, MBOX);
 410                 vW(ptr + 0) = 2;
 411                 vW(ptr + 2) = sc->mem_seg + FEPCODESEG;
 412                 vW(ptr + 4) = 0;
 413                 vW(ptr + 6) = FEPCODESEG;
 414                 vW(ptr + 8) = 0;
 415                 vW(ptr + 10) = sc->fep.size;
 416
 417                 /* Run the BIOS request */
 418                 outb(sc->port, FEPREQ | FEPMEM);
 419                 outb(sc->port, FEPCLR | FEPMEM);
 420
 421                 for (i = 0; W(ptr); i++) {
 422                         if (i > hz) {
 423                                 log(LOG_ERR, "digi%d: FEP/OS move failed\n",
 424                                     sc->res.unit);
 425                                 sc->hidewin(sc);
 426                                 return (EIO);
 427                         }
 428                         digi_delay(sc, "digifep0", 5);
 429                 }
 430                 DLOG(DIGIDB_INIT,
 431                     (sc->dev, "FEP/OS moved after %d iterations\n", i));
 432
 433                 /* Clear the confirm word */
 434                 ptr = sc->setwin(sc, FEPSTAT);
 435                 vW(ptr + 0) = 0;
 436
 437                 /* A BIOS request to execute the FEP/OS */
 438                 ptr = sc->setwin(sc, MBOX);
 439                 vW(ptr + 0) = 0x01;
 440                 vW(ptr + 2) = FEPCODESEG;
 441                 vW(ptr + 4) = 0x04;
 442
 443                 /* Run the BIOS request */
 444                 outb(sc->port, FEPREQ);
 445                 outb(sc->port, FEPCLR);
 446
 447                 ptr = sc->setwin(sc, FEPSTAT);
 448
 449                 break;
 450
 451         case PCXEM:
 452         case PCIEPCX:
 453         case PCIXR:
 454                 DLOG(DIGIDB_INIT, (sc->dev, "Loading FEP/OS\n"));
 455
 456                 cnt = (sc->fep.size < sc->win_size - BIOSOFFSET) ?
 457                     sc->fep.size : sc->win_size - BIOSOFFSET;
 458
 459                 ptr = sc->setwin(sc, BIOSOFFSET);
 460                 digi_bcopy(sc->fep.data, ptr, cnt);
 461
 462                 if (cnt != sc->fep.size) {
 463                         ptr = sc->setwin(sc, BIOSOFFSET + cnt);
 464                         digi_bcopy(sc->fep.data + cnt, ptr,
 465                             sc->fep.size - cnt);
 466                 }
 467
 468                 DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS loaded\n"));
 469
 470                 ptr = sc->setwin(sc, 0xc30);
 471                 W(ptr + 4) = 0x1004;
 472                 W(ptr + 6) = 0xbfc0;
 473                 W(ptr + 0) = 0x03;
 474                 W(ptr + 2) = 0x00;
 475
 476                 /* Clear the confirm word */
 477                 ptr = sc->setwin(sc, FEPSTAT);
 478                 W(ptr + 0) = 0;
 479
 480                 if (sc->port)
 481                         outb(sc->port, 0);              /* XXX necessary ? */
 482
 483                 break;
 484
 485         case PCCX:
 486                 ptr = sc->setwin(sc, 0xd000);
 487                 digi_bcopy(sc->fep.data, ptr, sc->fep.size);
 488
 489                 /* A BIOS request to execute the FEP/OS */
 490                 ptr = sc->setwin(sc, 0xc40);
 491                 W(ptr + 0) = 1;
 492                 W(ptr + 2) = FEPCODE >> 4;
 493                 W(ptr + 4) = 4;
 494
 495                 /* Clear the confirm word */
 496                 ptr = sc->setwin(sc, FEPSTAT);
 497                 W(ptr + 0) = 0;
 498
 499                 /* Run the BIOS request */
 500                 outb(sc->port, FEPREQ | FEPMEM); /* send interrupt to BIOS */
 501                 outb(sc->port, FEPCLR | FEPMEM);
 502                 break;
 503         }
 504
 505         /* Now wait 'till the FEP/OS has booted */
 506         for (i = 0; vW(ptr) != *(u_short *)"OS"; i++) {
 507                 if (i > 2*hz) {
 508                         log(LOG_ERR, "digi%d: FEP/OS start failed "
 509                             "(0x%02x != 0x%02x)\n",
 510                             sc->res.unit, vW(ptr), *(u_short *)"OS");
 511                         sc->hidewin(sc);
 512                         return (EIO);
 513                 }
 514                 digi_delay(sc, "digifep1", 5);
 515         }
 516
 517         DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS started after %d iterations\n", i));
 518
 519         if (sc->model >= PCXEM) {
 520                 ptr = sc->setwin(sc, 0xe04);
 521                 vW(ptr) = 2;
 522                 ptr = sc->setwin(sc, 0xc02);
 523                 sc->numports = vW(ptr);
 524         } else {
 525                 ptr = sc->setwin(sc, 0xc22);
 526                 sc->numports = vW(ptr);
 527         }
 528
 529         if (sc->numports == 0) {
 530                 device_printf(sc->dev, "%s, 0 ports found\n", sc->name);
 531                 sc->hidewin(sc);
 532                 return (0);
 533         }
 534
 535         if (sc->numports > 256) {
 536                 /* Our minor numbering scheme is broken for more than 256 */
 537                 device_printf(sc->dev, "%s, 256 ports (%d ports found)\n",
 538                     sc->name, sc->numports);
 539                 sc->numports = 256;
 540         } else
 541                 device_printf(sc->dev, "%s, %d ports found\n", sc->name,
 542                     sc->numports);
 543
 544         if (sc->ports)
 545                 kfree(sc->ports, M_TTYS);
 546         sc->ports = kmalloc(sizeof(struct digi_p) * sc->numports,
 547             M_TTYS, M_WAITOK | M_ZERO);
 548
 549         if (sc->ttys)
 550                 kfree(sc->ttys, M_TTYS);
 551         sc->ttys = kmalloc(sizeof(struct tty) * sc->numports,
 552             M_TTYS, M_WAITOK | M_ZERO);
 553
 554         /*
 555          * XXX Should read port 0xc90 for an array of 2byte values, 1 per
 556          * port.  If the value is 0, the port is broken....
 557          */
 558
 559         ptr = sc->setwin(sc, 0);
 560
 561         /* We should now init per-port structures */
 562         bc = (volatile struct board_chan *)(ptr + CHANSTRUCT);
 563         sc->gdata = (volatile struct global_data *)(ptr + FEP_GLOBAL);
 564
 565         sc->memcmd = ptr + sc->gdata->cstart;
 566         sc->memevent = ptr + sc->gdata->istart;
 567
 568         for (i = 0; i < sc->numports; i++, bc++) {
 569                 port = sc->ports + i;
 570                 port->pnum = i;
 571                 port->sc = sc;
 572                 port->status = ENABLED;
 573                 port->tp = sc->ttys + i;
 574                 port->bc = bc;
 575
 576                 if (sc->model == PCXEVE) {
 577                         port->txbuf = ptr +
 578                             (((bc->tseg - sc->mem_seg) << 4) & 0x1fff);
 579                         port->rxbuf = ptr +
 580                             (((bc->rseg - sc->mem_seg) << 4) & 0x1fff);
 581                         port->txwin = FEPWIN | ((bc->tseg - sc->mem_seg) >> 9);
 582                         port->rxwin = FEPWIN | ((bc->rseg - sc->mem_seg) >> 9);
 583                 } else if (sc->model == PCXI || sc->model == PCXE) {
 584                         port->txbuf = ptr + ((bc->tseg - sc->mem_seg) << 4);
 585                         port->rxbuf = ptr + ((bc->rseg - sc->mem_seg) << 4);
 586                         port->txwin = port->rxwin = 0;
 587                 } else {
 588                         port->txbuf = ptr +
 589                             (((bc->tseg - sc->mem_seg) << 4) % sc->win_size);
 590                         port->rxbuf = ptr +
 591                             (((bc->rseg - sc->mem_seg) << 4) % sc->win_size);
 592                         port->txwin = FEPWIN |
 593                             (((bc->tseg - sc->mem_seg) << 4) / sc->win_size);
 594                         port->rxwin = FEPWIN |
 595                             (((bc->rseg - sc->mem_seg) << 4) / sc->win_size);
 596                 }
 597                 port->txbufsize = bc->tmax + 1;
 598                 port->rxbufsize = bc->rmax + 1;
 599
 600                 lowwater = port->txbufsize >> 2;
 601                 if (lowwater > 1024)
 602                         lowwater = 1024;
 603                 sc->setwin(sc, 0);
 604                 fepcmd_w(port, STXLWATER, lowwater, 10);
 605                 fepcmd_w(port, SRXLWATER, port->rxbufsize >> 2, 10);
 606                 fepcmd_w(port, SRXHWATER, (3 * port->rxbufsize) >> 2, 10);
 607
 608                 bc->edelay = 100;
 609                 port->dtr_wait = 3 * hz;
 610
 611                 /*
 612                  * We don't use all the flags from <sys/ttydefaults.h> since
 613                  * they are only relevant for logins.  It's important to have
 614                  * echo off initially so that the line doesn't start blathering
 615                  * before the echo flag can be turned off.
 616                  */
 617                 port->it_in.c_iflag = 0;
 618                 port->it_in.c_oflag = 0;
 619                 port->it_in.c_cflag = TTYDEF_CFLAG;
 620                 port->it_in.c_lflag = 0;
 621                 termioschars(&port->it_in);
 622                 port->it_in.c_ispeed = port->it_in.c_ospeed = digidefaultrate;
 623                 port->it_out = port->it_in;
 624                 port->send_ring = 1;    /* Default action on signal RI */
 625
 626                 port->dev[0] = make_dev(&digi_ops, (sc->res.unit << 16) + i,
 627                     UID_ROOT, GID_WHEEL, 0600, "ttyD%d.%d", sc->res.unit, i);
 628                 port->dev[1] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
 629                     CONTROL_INIT_STATE, UID_ROOT, GID_WHEEL,
 630                     0600, "ttyiD%d.%d", sc->res.unit, i);
 631                 port->dev[2] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
 632                     CONTROL_LOCK_STATE, UID_ROOT, GID_WHEEL,
 633                     0600, "ttylD%d.%d", sc->res.unit, i);
 634                 port->dev[3] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
 635                     CALLOUT_MASK, UID_UUCP, GID_DIALER,
 636                     0660, "cuaD%d.%d", sc->res.unit, i);
 637                 port->dev[4] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
 638                     CALLOUT_MASK | CONTROL_INIT_STATE, UID_UUCP, GID_DIALER,
 639                     0660, "cuaiD%d.%d", sc->res.unit, i);
 640                 port->dev[5] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
 641                     CALLOUT_MASK | CONTROL_LOCK_STATE, UID_UUCP, GID_DIALER,
 642                     0660, "cualD%d.%d", sc->res.unit, i);
 643         }
 644
 645         sc->hidewin(sc);
 646         callout_reset(&sc->inttest, hz, digi_int_test, sc);
 647         /* fepcmd_w(&sc->ports[0], 0xff, 0, 0); */
 648         sc->status = DIGI_STATUS_ENABLED;
 649
 650         return (0);
 651 }
 652
 653 static int
 654 digimctl(struct digi_p *port, int bits, int how)
 655 {
 656         int mstat;
 657
 658         if (how == DMGET) {
 659                 port->sc->setwin(port->sc, 0);
 660                 mstat = port->bc->mstat;
 661                 port->sc->hidewin(port->sc);
 662                 bits = TIOCM_LE;
 663                 if (mstat & port->sc->csigs->rts)
 664                         bits |= TIOCM_RTS;
 665                 if (mstat & port->cd)
 666                         bits |= TIOCM_CD;
 667                 if (mstat & port->dsr)
 668                         bits |= TIOCM_DSR;
 669                 if (mstat & port->sc->csigs->cts)
 670                         bits |= TIOCM_CTS;
 671                 if (mstat & port->sc->csigs->ri)
 672                         bits |= TIOCM_RI;
 673                 if (mstat & port->sc->csigs->dtr)
 674                         bits |= TIOCM_DTR;
 675                 return (bits);
 676         }
 677
 678         /* Only DTR and RTS may be set */
 679         mstat = 0;
 680         if (bits & TIOCM_DTR)
 681                 mstat |= port->sc->csigs->dtr;
 682         if (bits & TIOCM_RTS)
 683                 mstat |= port->sc->csigs->rts;
 684
 685         switch (how) {
 686         case DMSET:
 687                 fepcmd_b(port, SETMODEM, mstat, ~mstat, 0);
 688                 break;
 689         case DMBIS:
 690                 fepcmd_b(port, SETMODEM, mstat, 0, 0);
 691                 break;
 692         case DMBIC:
 693                 fepcmd_b(port, SETMODEM, 0, mstat, 0);
 694                 break;
 695         }
 696
 697         return (0);
 698 }
 699
 700 static void
 701 digi_disc_optim(struct tty *tp, struct termios *t, struct digi_p *port)
 702 {
 703         if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP)) &&
 704             (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) &&
 705             (!(t->c_iflag & PARMRK) ||
 706             (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) &&
 707             !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) &&
 708             linesw[tp->t_line].l_rint == ttyinput)
 709                 tp->t_state |= TS_CAN_BYPASS_L_RINT;
 710         else
 711                 tp->t_state &= ~TS_CAN_BYPASS_L_RINT;
 712 }
 713
 714 static int
 715 digiopen(struct dev_open_args *ap)
 716 {
 717         cdev_t dev = ap->a_head.a_dev;
 718         struct digi_softc *sc;
 719         struct tty *tp;
 720         int unit;
 721         int pnum;
 722         struct digi_p *port;
 723         int error, mynor;
 724         volatile struct board_chan *bc;
 725
 726         error = 0;
 727         mynor = minor(dev);
 728         unit = MINOR_TO_UNIT(minor(dev));
 729         pnum = MINOR_TO_PORT(minor(dev));
 730
 731         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
 732         if (!sc)
 733                 return (ENXIO);
 734
 735         if (sc->status != DIGI_STATUS_ENABLED) {
 736                 DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n"));
 737                 return (ENXIO);
 738         }
 739         if (pnum >= sc->numports) {
 740                 DLOG(DIGIDB_OPEN, (sc->dev, "port%d: Doesn't exist\n", pnum));
 741                 return (ENXIO);
 742         }
 743         if (mynor & (CTRL_DEV | CONTROL_MASK)) {
 744                 sc->opencnt++;
 745                 return (0);
 746         }
 747         port = &sc->ports[pnum];
 748         tp = dev->si_tty = port->tp;
 749         bc = port->bc;
 750
 751         crit_enter();
 752
 753 open_top:
 754         while (port->status & DIGI_DTR_OFF) {
 755                 port->wopeners++;
 756                 error = tsleep(&port->dtr_wait, PCATCH, "digidtr", 0);
 757                 port->wopeners--;
 758                 if (error)
 759                         goto out;
 760         }
 761
 762         if (tp->t_state & TS_ISOPEN) {
 763                 /*
 764                  * The device is open, so everything has been initialized.
 765                  * Handle conflicts.
 766                  */
 767                 if (mynor & CALLOUT_MASK) {
 768                         if (!port->active_out) {
 769                                 error = EBUSY;
 770                                 DLOG(DIGIDB_OPEN, (sc->dev, "port %d:"
 771                                     " BUSY error = %d\n", pnum, error));
 772                                 goto out;
 773                         }
 774                 } else if (port->active_out) {
 775                         if (ap->a_oflags & O_NONBLOCK) {
 776                                 error = EBUSY;
 777                                 DLOG(DIGIDB_OPEN, (sc->dev,
 778                                     "port %d: BUSY error = %d\n", pnum, error));
 779                                 goto out;
 780                         }
 781                         port->wopeners++;
 782                         error = tsleep(&port->active_out, PCATCH, "digibi", 0);
 783                         port->wopeners--;
 784                         if (error != 0) {
 785                                 DLOG(DIGIDB_OPEN, (sc->dev,
 786                                     "port %d: tsleep(digibi) error = %d\n",
 787                                     pnum, error));
 788                                 goto out;
 789                         }
 790                         goto open_top;
 791                 }
 792                 if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0) != 0) {
 793                         error = EBUSY;
 794                         goto out;
 795                 }
 796         } else {
 797                 /*
 798                  * The device isn't open, so there are no conflicts.
 799                  * Initialize it.  Initialization is done twice in many
 800                  * cases: to preempt sleeping callin opens if we are callout,
 801                  * and to complete a callin open after DCD rises.
 802                  */
 803                 callout_init(&port->wakeupco);
 804                 tp->t_oproc = digistart;
 805                 tp->t_param = digiparam;
 806                 tp->t_stop = digistop;
 807                 tp->t_dev = dev;
 808                 tp->t_termios = (mynor & CALLOUT_MASK) ?
 809                     port->it_out : port->it_in;
 810                 sc->setwin(sc, 0);
 811
 812                 bc->rout = bc->rin;     /* clear input queue */
 813                 bc->idata = 1;
 814                 bc->iempty = 1;
 815                 bc->ilow = 1;
 816                 bc->mint = port->cd | port->sc->csigs->ri;
 817                 bc->tin = bc->tout;
 818                 if (port->ialtpin) {
 819                         port->cd = sc->csigs->dsr;
 820                         port->dsr = sc->csigs->cd;
 821                 } else {
 822                         port->cd = sc->csigs->cd;
 823                         port->dsr = sc->csigs->dsr;
 824                 }
 825                 port->wopeners++;                       /* XXX required ? */
 826                 error = digiparam(tp, &tp->t_termios);
 827                 port->wopeners--;
 828
 829                 if (error != 0) {
 830                         DLOG(DIGIDB_OPEN, (sc->dev,
 831                             "port %d: cxpparam error = %d\n", pnum, error));
 832                         goto out;
 833                 }
 834                 ttsetwater(tp);
 835
 836                 /* handle fake and initial DCD for callout devices */
 837
 838                 if (bc->mstat & port->cd || mynor & CALLOUT_MASK)
 839                         linesw[tp->t_line].l_modem(tp, 1);
 840         }
 841
 842         /* Wait for DCD if necessary */
 843         if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) &&
 844             !(tp->t_cflag & CLOCAL) && !(ap->a_oflags & O_NONBLOCK)) {
 845                 port->wopeners++;
 846                 error = tsleep(TSA_CARR_ON(tp), PCATCH, "digidcd", 0);
 847                 port->wopeners--;
 848                 if (error != 0) {
 849                         DLOG(DIGIDB_OPEN, (sc->dev,
 850                             "port %d: tsleep(digidcd) error = %d\n",
 851                             pnum, error));
 852                         goto out;
 853                 }
 854                 goto open_top;
 855         }
 856         error = linesw[tp->t_line].l_open(dev, tp);
 857         DLOG(DIGIDB_OPEN, (sc->dev, "port %d: l_open error = %d\n",
 858             pnum, error));
 859
 860         digi_disc_optim(tp, &tp->t_termios, port);
 861
 862         if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
 863                 port->active_out = TRUE;
 864
 865         if (tp->t_state & TS_ISOPEN)
 866                 sc->opencnt++;
 867 out:
 868         crit_exit();
 869
 870         if (!(tp->t_state & TS_ISOPEN))
 871                 digihardclose(port);
 872
 873         DLOG(DIGIDB_OPEN, (sc->dev, "port %d: open() returns %d\n",
 874             pnum, error));
 875
 876         return (error);
 877 }
 878
 879 static int
 880 digiclose(struct dev_close_args *ap)
 881 {
 882         cdev_t dev = ap->a_head.a_dev;
 883         int mynor;
 884         struct tty *tp;
 885         int unit, pnum;
 886         struct digi_softc *sc;
 887         struct digi_p *port;
 888
 889         mynor = minor(dev);
 890         unit = MINOR_TO_UNIT(mynor);
 891         pnum = MINOR_TO_PORT(mynor);
 892
 893         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
 894         KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
 895
 896         if (mynor & (CTRL_DEV | CONTROL_MASK)) {
 897                 sc->opencnt--;
 898                 return (0);
 899         }
 900
 901         port = sc->ports + pnum;
 902         tp = port->tp;
 903
 904         DLOG(DIGIDB_CLOSE, (sc->dev, "port %d: closing\n", pnum));
 905
 906         crit_enter();
 907         linesw[tp->t_line].l_close(tp, ap->a_fflag);
 908         digi_disc_optim(tp, &tp->t_termios, port);
 909         digistop(tp, FREAD | FWRITE);
 910         digihardclose(port);
 911         ttyclose(tp);
 912         --sc->opencnt;
 913         crit_exit();
 914         return (0);
 915 }
 916
 917 static void
 918 digidtrwakeup(void *chan)
 919 {
 920         struct digi_p *port = chan;
 921
 922         port->status &= ~DIGI_DTR_OFF;
 923         wakeup(&port->dtr_wait);
 924         port->wopeners--;
 925 }
 926
 927 static void
 928 digihardclose(struct digi_p *port)
 929 {
 930         volatile struct board_chan *bc;
 931
 932         bc = port->bc;
 933
 934         crit_enter();
 935         port->sc->setwin(port->sc, 0);
 936         bc->idata = 0;
 937         bc->iempty = 0;
 938         bc->ilow = 0;
 939         bc->mint = 0;
 940         if ((port->tp->t_cflag & HUPCL) ||
 941             (!port->active_out && !(bc->mstat & port->cd) &&
 942             !(port->it_in.c_cflag & CLOCAL)) ||
 943             !(port->tp->t_state & TS_ISOPEN)) {
 944                 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC);
 945                 if (port->dtr_wait != 0) {
 946                         /* Schedule a wakeup of any callin devices */
 947                         port->wopeners++;
 948                         callout_reset(&port->wakeupco, port->dtr_wait,
 949                                       digidtrwakeup, port);
 950                         port->status |= DIGI_DTR_OFF;
 951                 }
 952         }
 953         port->active_out = FALSE;
 954         wakeup(&port->active_out);
 955         wakeup(TSA_CARR_ON(port->tp));
 956         crit_exit();
 957 }
 958
 959 static int
 960 digiread(struct dev_read_args *ap)
 961 {
 962         cdev_t dev = ap->a_head.a_dev;
 963         int mynor;
 964         struct tty *tp;
 965         int error, unit, pnum;
 966         struct digi_softc *sc;
 967
 968         mynor = minor(dev);
 969         if (mynor & CONTROL_MASK)
 970                 return (ENODEV);
 971
 972         unit = MINOR_TO_UNIT(mynor);
 973         pnum = MINOR_TO_PORT(mynor);
 974
 975         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
 976         KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
 977         tp = &sc->ttys[pnum];
 978
 979         error = linesw[tp->t_line].l_read(tp, ap->a_uio, ap->a_ioflag);
 980         DLOG(DIGIDB_READ, (sc->dev, "port %d: read() returns %d\n",
 981             pnum, error));
 982
 983         return (error);
 984 }
 985
 986 static int
 987 digiwrite(struct dev_write_args *ap)
 988 {
 989         cdev_t dev = ap->a_head.a_dev;
 990         int mynor;
 991         struct tty *tp;
 992         int error, unit, pnum;
 993         struct digi_softc *sc;
 994
 995         mynor = minor(dev);
 996         if (mynor & CONTROL_MASK)
 997                 return (ENODEV);
 998
 999         unit = MINOR_TO_UNIT(mynor);
1000         pnum = MINOR_TO_PORT(mynor);
1001
1002         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1003         KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
1004         tp = &sc->ttys[pnum];
1005
1006         error = linesw[tp->t_line].l_write(tp, ap->a_uio, ap->a_ioflag);
1007         DLOG(DIGIDB_WRITE, (sc->dev, "port %d: write() returns %d\n",
1008             pnum, error));
1009
1010         return (error);
1011 }
1012
1013 /*
1014  * Load module "digi_<mod>.ko" and look for a symbol called digi_mod_<mod>.
1015  *
1016  * Populate sc->bios, sc->fep, and sc->link from this data.
1017  *
1018  * sc->fep.data, sc->bios.data and sc->link.data are malloc()d according
1019  * to their respective sizes.
1020  *
1021  * The module is unloaded when we're done.
1022  */
1023 static int
1024 digi_loaddata(struct digi_softc *sc)
1025 {
1026         struct digi_bios *bios;
1027
1028         KASSERT(sc->bios.data == NULL, ("Uninitialised BIOS variable"));
1029         KASSERT(sc->fep.data == NULL, ("Uninitialised FEP variable"));
1030         KASSERT(sc->link.data == NULL, ("Uninitialised LINK variable"));
1031         KASSERT(sc->module != NULL, ("Uninitialised module name"));
1032
1033         for (bios = digi_bioses; bios->model != NULL; bios++) {
1034                 if (!strcmp(bios->model, sc->module))
1035                         break;
1036         }
1037         if (bios->model == NULL) {
1038                 kprintf("digi.ko: driver %s not found", sc->module);
1039                 return(EINVAL);
1040         }
1041
1042         sc->bios.size = bios->bios_size;
1043         if (sc->bios.size != 0 && bios->bios != NULL) {
1044                 sc->bios.data = kmalloc(sc->bios.size, M_TTYS, M_WAITOK);
1045                 bcopy(bios->bios, sc->bios.data, sc->bios.size);
1046         }
1047
1048         sc->fep.size = bios->fep_size;
1049         if (sc->fep.size != 0 && bios->fep != NULL) {
1050                 sc->fep.data = kmalloc(sc->fep.size, M_TTYS, M_WAITOK);
1051                 bcopy(bios->fep, sc->fep.data, sc->fep.size);
1052         }
1053
1054         return (0);
1055 }
1056
1057 static int
1058 digiioctl(struct dev_ioctl_args *ap)
1059 {
1060         cdev_t dev = ap->a_head.a_dev;
1061         u_long cmd = ap->a_cmd;
1062         caddr_t data = ap->a_data;
1063         int unit, pnum, mynor, error;
1064         struct digi_softc *sc;
1065         struct digi_p *port;
1066         struct tty *tp;
1067 #if defined(COMPAT_43) || defined(COMPAT_SUNOS)
1068         int oldcmd;
1069         struct termios term;
1070 #endif
1071
1072         mynor = minor(dev);
1073         unit = MINOR_TO_UNIT(mynor);
1074         pnum = MINOR_TO_PORT(mynor);
1075
1076         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1077         KASSERT(sc, ("digi%d: softc not allocated in digiioctl\n", unit));
1078
1079         if (sc->status == DIGI_STATUS_DISABLED)
1080                 return (ENXIO);
1081
1082         if (mynor & CTRL_DEV) {
1083                 switch (cmd) {
1084                 case DIGIIO_DEBUG:
1085 #ifdef DEBUG
1086                         digi_debug = *(int *)data;
1087                         return (0);
1088 #else
1089                         device_printf(sc->dev, "DEBUG not defined\n");
1090                         return (ENXIO);
1091 #endif
1092                 case DIGIIO_REINIT:
1093                         digi_loaddata(sc);
1094                         error = digi_init(sc);
1095                         digi_freedata(sc);
1096                         return (error);
1097
1098                 case DIGIIO_MODEL:
1099                         *(enum digi_model *)data = sc->model;
1100                         return (0);
1101
1102                 case DIGIIO_IDENT:
1103                         return (copyout(sc->name, *(char **)data,
1104                             strlen(sc->name) + 1));
1105                 }
1106         }
1107
1108         if (pnum >= sc->numports)
1109                 return (ENXIO);
1110
1111         port = sc->ports + pnum;
1112         if (!(port->status & ENABLED))
1113                 return (ENXIO);
1114
1115         tp = port->tp;
1116
1117         if (mynor & CONTROL_MASK) {
1118                 struct termios *ct;
1119
1120                 switch (mynor & CONTROL_MASK) {
1121                 case CONTROL_INIT_STATE:
1122                         ct = (mynor & CALLOUT_MASK) ?
1123                             &port->it_out : &port->it_in;
1124                         break;
1125                 case CONTROL_LOCK_STATE:
1126                         ct = (mynor & CALLOUT_MASK) ?
1127                             &port->lt_out : &port->lt_in;
1128                         break;
1129                 default:
1130                         return (ENODEV);        /* /dev/nodev */
1131                 }
1132
1133                 switch (cmd) {
1134                 case TIOCSETA:
1135                         error = priv_check_cred(ap->a_cred, PRIV_ROOT, 0);
1136                         if (error != 0)
1137                                 return (error);
1138                         *ct = *(struct termios *)data;
1139                         return (0);
1140
1141                 case TIOCGETA:
1142                         *(struct termios *)data = *ct;
1143                         return (0);
1144
1145                 case TIOCGETD:
1146                         *(int *)data = TTYDISC;
1147                         return (0);
1148
1149                 case TIOCGWINSZ:
1150                         bzero(data, sizeof(struct winsize));
1151                         return (0);
1152
1153                 case DIGIIO_GETALTPIN:
1154                         switch (mynor & CONTROL_MASK) {
1155                         case CONTROL_INIT_STATE:
1156                                 *(int *)data = port->ialtpin;
1157                                 break;
1158
1159                         case CONTROL_LOCK_STATE:
1160                                 *(int *)data = port->laltpin;
1161                                 break;
1162
1163                         default:
1164                                 panic("Confusion when re-testing minor");
1165                                 return (ENODEV);
1166                         }
1167                         return (0);
1168
1169                 case DIGIIO_SETALTPIN:
1170                         switch (mynor & CONTROL_MASK) {
1171                         case CONTROL_INIT_STATE:
1172                                 if (!port->laltpin) {
1173                                         port->ialtpin = !!*(int *)data;
1174                                         DLOG(DIGIDB_SET, (sc->dev,
1175                                             "port%d: initial ALTPIN %s\n", pnum,
1176                                             port->ialtpin ? "set" : "cleared"));
1177                                 }
1178                                 break;
1179
1180                         case CONTROL_LOCK_STATE:
1181                                 port->laltpin = !!*(int *)data;
1182                                 DLOG(DIGIDB_SET, (sc->dev,
1183                                     "port%d: ALTPIN %slocked\n",
1184                                     pnum, port->laltpin ? "" : "un"));
1185                                 break;
1186
1187                         default:
1188                                 panic("Confusion when re-testing minor");
1189                                 return (ENODEV);
1190                         }
1191                         return (0);
1192
1193                 default:
1194                         return (ENOTTY);
1195                 }
1196         }
1197
1198         switch (cmd) {
1199         case DIGIIO_GETALTPIN:
1200                 *(int *)data = !!(port->dsr == sc->csigs->cd);
1201                 return (0);
1202
1203         case DIGIIO_SETALTPIN:
1204                 if (!port->laltpin) {
1205                         if (*(int *)data) {
1206                                 DLOG(DIGIDB_SET, (sc->dev,
1207                                     "port%d: ALTPIN set\n", pnum));
1208                                 port->cd = sc->csigs->dsr;
1209                                 port->dsr = sc->csigs->cd;
1210                         } else {
1211                                 DLOG(DIGIDB_SET, (sc->dev,
1212                                     "port%d: ALTPIN cleared\n", pnum));
1213                                 port->cd = sc->csigs->cd;
1214                                 port->dsr = sc->csigs->dsr;
1215                         }
1216                 }
1217                 return (0);
1218         }
1219
1220         tp = port->tp;
1221 #if defined(COMPAT_43) || defined(COMPAT_SUNOS)
1222         term = tp->t_termios;
1223         oldcmd = cmd;
1224         error = ttsetcompat(tp, &cmd, data, &term);
1225         if (error != 0)
1226                 return (error);
1227         if (cmd != oldcmd)
1228                 data = (caddr_t) & term;
1229 #endif
1230         if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) {
1231                 int cc;
1232                 struct termios *dt;
1233                 struct termios *lt;
1234
1235                 dt = (struct termios *)data;
1236                 lt = (mynor & CALLOUT_MASK) ? &port->lt_out : &port->lt_in;
1237
1238                 dt->c_iflag =
1239                     (tp->t_iflag & lt->c_iflag) | (dt->c_iflag & ~lt->c_iflag);
1240                 dt->c_oflag =
1241                     (tp->t_oflag & lt->c_oflag) | (dt->c_oflag & ~lt->c_oflag);
1242                 dt->c_cflag =
1243                     (tp->t_cflag & lt->c_cflag) | (dt->c_cflag & ~lt->c_cflag);
1244                 dt->c_lflag =
1245                     (tp->t_lflag & lt->c_lflag) | (dt->c_lflag & ~lt->c_lflag);
1246                 port->c_iflag = dt->c_iflag & (IXOFF | IXON | IXANY);
1247                 dt->c_iflag &= ~(IXOFF | IXON | IXANY);
1248                 for (cc = 0; cc < NCCS; ++cc)
1249                         if (lt->c_cc[cc] != 0)
1250                                 dt->c_cc[cc] = tp->t_cc[cc];
1251                 if (lt->c_ispeed != 0)
1252                         dt->c_ispeed = tp->t_ispeed;
1253                 if (lt->c_ospeed != 0)
1254                         dt->c_ospeed = tp->t_ospeed;
1255         }
1256         error = linesw[tp->t_line].l_ioctl(tp, cmd, data,
1257                                            ap->a_fflag, ap->a_cred);
1258         if (error == 0 && cmd == TIOCGETA)
1259                 ((struct termios *)data)->c_iflag |= port->c_iflag;
1260
1261         if (error >= 0 && error != ENOIOCTL)
1262                 return (error);
1263         crit_enter();
1264         error = ttioctl(tp, cmd, data, ap->a_fflag);
1265         if (error == 0 && cmd == TIOCGETA)
1266                 ((struct termios *)data)->c_iflag |= port->c_iflag;
1267
1268         digi_disc_optim(tp, &tp->t_termios, port);
1269         if (error >= 0 && error != ENOIOCTL) {
1270                 crit_exit();
1271                 return (error);
1272         }
1273         sc->setwin(sc, 0);
1274         switch (cmd) {
1275         case DIGIIO_RING:
1276                 port->send_ring = *(u_char *)data;
1277                 break;
1278         case TIOCSBRK:
1279                 /*
1280                  * now it sends 400 millisecond break because I don't know
1281                  * how to send an infinite break
1282                  */
1283                 fepcmd_w(port, SENDBREAK, 400, 10);
1284                 break;
1285         case TIOCCBRK:
1286                 /* now it's empty */
1287                 break;
1288         case TIOCSDTR:
1289                 digimctl(port, TIOCM_DTR, DMBIS);
1290                 break;
1291         case TIOCCDTR:
1292                 digimctl(port, TIOCM_DTR, DMBIC);
1293                 break;
1294         case TIOCMSET:
1295                 digimctl(port, *(int *)data, DMSET);
1296                 break;
1297         case TIOCMBIS:
1298                 digimctl(port, *(int *)data, DMBIS);
1299                 break;
1300         case TIOCMBIC:
1301                 digimctl(port, *(int *)data, DMBIC);
1302                 break;
1303         case TIOCMGET:
1304                 *(int *)data = digimctl(port, 0, DMGET);
1305                 break;
1306         case TIOCMSDTRWAIT:
1307                 error = priv_check_cred(ap->a_cred, PRIV_ROOT, 0);
1308                 if (error != 0) {
1309                         crit_exit();
1310                         return (error);
1311                 }
1312                 port->dtr_wait = *(int *)data *hz / 100;
1313
1314                 break;
1315         case TIOCMGDTRWAIT:
1316                 *(int *)data = port->dtr_wait * 100 / hz;
1317                 break;
1318 #ifdef DIGI_INTERRUPT
1319         case TIOCTIMESTAMP:
1320                 *(struct timeval *)data = sc->intr_timestamp;
1321
1322                 break;
1323 #endif
1324         default:
1325                 crit_exit();
1326                 return (ENOTTY);
1327         }
1328         crit_exit();
1329         return (0);
1330 }
1331
1332 static int
1333 digiparam(struct tty *tp, struct termios *t)
1334 {
1335         int mynor;
1336         int unit;
1337         int pnum;
1338         struct digi_softc *sc;
1339         struct digi_p *port;
1340         int cflag;
1341         int iflag;
1342         int hflow;
1343         int window;
1344
1345         mynor = minor(tp->t_dev);
1346         unit = MINOR_TO_UNIT(mynor);
1347         pnum = MINOR_TO_PORT(mynor);
1348
1349         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1350         KASSERT(sc, ("digi%d: softc not allocated in digiparam\n", unit));
1351
1352         port = &sc->ports[pnum];
1353
1354         DLOG(DIGIDB_SET, (sc->dev, "port%d: setting parameters\n", pnum));
1355
1356         if (t->c_ispeed == 0)
1357                 t->c_ispeed = t->c_ospeed;
1358
1359         cflag = ttspeedtab(t->c_ospeed, digispeedtab);
1360
1361         if (cflag < 0 || (cflag > 0 && t->c_ispeed != t->c_ospeed))
1362                 return (EINVAL);
1363
1364         crit_enter();
1365
1366         window = sc->window;
1367         sc->setwin(sc, 0);
1368
1369         if (cflag == 0) {                               /* hangup */
1370                 DLOG(DIGIDB_SET, (sc->dev, "port%d: hangup\n", pnum));
1371                 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC);
1372         } else {
1373                 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIS);
1374
1375                 DLOG(DIGIDB_SET, (sc->dev, "port%d: CBAUD = %d\n", pnum,
1376                     cflag));
1377
1378 #if 0
1379                 /* convert flags to sysV-style values */
1380                 if (t->c_cflag & PARODD)
1381                         cflag |= 0x0200;
1382                 if (t->c_cflag & PARENB)
1383                         cflag |= 0x0100;
1384                 if (t->c_cflag & CSTOPB)
1385                         cflag |= 0x0080;
1386 #else
1387                 /* convert flags to sysV-style values */
1388                 if (t->c_cflag & PARODD)
1389                         cflag |= FEP_PARODD;
1390                 if (t->c_cflag & PARENB)
1391                         cflag |= FEP_PARENB;
1392                 if (t->c_cflag & CSTOPB)
1393                         cflag |= FEP_CSTOPB;
1394                 if (t->c_cflag & CLOCAL)
1395                         cflag |= FEP_CLOCAL;
1396 #endif
1397
1398                 cflag |= (t->c_cflag & CSIZE) >> 4;
1399                 DLOG(DIGIDB_SET, (sc->dev, "port%d: CFLAG = 0x%x\n", pnum,
1400                     cflag));
1401                 fepcmd_w(port, SETCFLAGS, (unsigned)cflag, 0);
1402         }
1403
1404         iflag =
1405             t->c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK | ISTRIP);
1406         if (port->c_iflag & IXON)
1407                 iflag |= 0x400;
1408         if (port->c_iflag & IXANY)
1409                 iflag |= 0x800;
1410         if (port->c_iflag & IXOFF)
1411                 iflag |= 0x1000;
1412
1413         DLOG(DIGIDB_SET, (sc->dev, "port%d: set iflag = 0x%x\n", pnum, iflag));
1414         fepcmd_w(port, SETIFLAGS, (unsigned)iflag, 0);
1415
1416         hflow = 0;
1417         if (t->c_cflag & CDTR_IFLOW)
1418                 hflow |= sc->csigs->dtr;
1419         if (t->c_cflag & CRTS_IFLOW)
1420                 hflow |= sc->csigs->rts;
1421         if (t->c_cflag & CCTS_OFLOW)
1422                 hflow |= sc->csigs->cts;
1423         if (t->c_cflag & CDSR_OFLOW)
1424                 hflow |= port->dsr;
1425         if (t->c_cflag & CCAR_OFLOW)
1426                 hflow |= port->cd;
1427
1428         DLOG(DIGIDB_SET, (sc->dev, "port%d: set hflow = 0x%x\n", pnum, hflow));
1429         fepcmd_w(port, SETHFLOW, 0xff00 | (unsigned)hflow, 0);
1430
1431         DLOG(DIGIDB_SET, (sc->dev, "port%d: set startc(0x%x), stopc(0x%x)\n",
1432             pnum, t->c_cc[VSTART], t->c_cc[VSTOP]));
1433         fepcmd_b(port, SONOFFC, t->c_cc[VSTART], t->c_cc[VSTOP], 0);
1434
1435         if (sc->window != 0)
1436                 sc->towin(sc, 0);
1437         if (window != 0)
1438                 sc->towin(sc, window);
1439         crit_exit();
1440
1441         return (0);
1442 }
1443
1444 static void
1445 digi_intr(void *vp)
1446 {
1447         struct digi_p *port;
1448         char *cxcon;
1449         struct digi_softc *sc;
1450         int ehead, etail;
1451         volatile struct board_chan *bc;
1452         struct tty *tp;
1453         int head, tail;
1454         int wrapmask;
1455         int size, window;
1456         struct event {
1457                 u_char pnum;
1458                 u_char event;
1459                 u_char mstat;
1460                 u_char lstat;
1461         } event;
1462
1463         sc = vp;
1464
1465         if (sc->status != DIGI_STATUS_ENABLED) {
1466                 DLOG(DIGIDB_IRQ, (sc->dev, "interrupt on disabled board !\n"));
1467                 return;
1468         }
1469
1470 #ifdef DIGI_INTERRUPT
1471         microtime(&sc->intr_timestamp);
1472 #endif
1473
1474         window = sc->window;
1475         sc->setwin(sc, 0);
1476
1477         if (sc->model >= PCXEM && W(sc->vmem + 0xd00)) {
1478                 struct con_bios *con = con_bios_list;
1479                 u_char *ptr;
1480
1481                 ptr = sc->vmem + W(sc->vmem + 0xd00);
1482                 while (con) {
1483                         if (ptr[1] && W(ptr + 2) == W(con->bios + 2))
1484                                 /* Not first block -- exact match */
1485                                 break;
1486
1487                         if (W(ptr + 4) >= W(con->bios + 4) &&
1488                             W(ptr + 4) <= W(con->bios + 6))
1489                                 /* Initial search concetrator BIOS */
1490                                 break;
1491                 }
1492
1493                 if (con == NULL) {
1494                         log(LOG_ERR, "digi%d: wanted bios LREV = 0x%04x"
1495                             " not found!\n", sc->res.unit, W(ptr + 4));
1496                         W(ptr + 10) = 0;
1497                         W(sc->vmem + 0xd00) = 0;
1498                         goto eoi;
1499                 }
1500                 cxcon = con->bios;
1501                 W(ptr + 4) = W(cxcon + 4);
1502                 W(ptr + 6) = W(cxcon + 6);
1503                 if (ptr[1] == 0)
1504                         W(ptr + 2) = W(cxcon + 2);
1505                 W(ptr + 8) = (ptr[1] << 6) + W(cxcon + 8);
1506                 size = W(cxcon + 10) - (ptr[1] << 10);
1507                 if (size <= 0) {
1508                         W(ptr + 8) = W(cxcon + 8);
1509                         W(ptr + 10) = 0;
1510                 } else {
1511                         if (size > 1024)
1512                                 size = 1024;
1513                         W(ptr + 10) = size;
1514                         bcopy(cxcon + (ptr[1] << 10), ptr + 12, size);
1515                 }
1516                 W(sc->vmem + 0xd00) = 0;
1517                 goto eoi;
1518         }
1519
1520         ehead = sc->gdata->ein;
1521         etail = sc->gdata->eout;
1522         if (ehead == etail) {
1523 #ifdef DEBUG
1524                 sc->intr_count++;
1525                 if (sc->intr_count % 6000 == 0) {
1526                         DLOG(DIGIDB_IRQ, (sc->dev,
1527                             "6000 useless polls %x %x\n", ehead, etail));
1528                         sc->intr_count = 0;
1529                 }
1530 #endif
1531                 goto eoi;
1532         }
1533         while (ehead != etail) {
1534                 event = *(volatile struct event *)(sc->memevent + etail);
1535
1536                 etail = (etail + 4) & sc->gdata->imax;
1537
1538                 if (event.pnum >= sc->numports) {
1539                         log(LOG_ERR, "digi%d: port %d: got event"
1540                             " on nonexisting port\n", sc->res.unit,
1541                             event.pnum);
1542                         continue;
1543                 }
1544                 port = &sc->ports[event.pnum];
1545                 bc = port->bc;
1546                 tp = port->tp;
1547
1548                 if (!(tp->t_state & TS_ISOPEN) && !port->wopeners) {
1549                         DLOG(DIGIDB_IRQ, (sc->dev,
1550                             "port %d: event 0x%x on closed port\n",
1551                             event.pnum, event.event));
1552                         bc->rout = bc->rin;
1553                         bc->idata = 0;
1554                         bc->iempty = 0;
1555                         bc->ilow = 0;
1556                         bc->mint = 0;
1557                         continue;
1558                 }
1559                 if (event.event & ~ALL_IND)
1560                         log(LOG_ERR, "digi%d: port%d: ? event 0x%x mstat 0x%x"
1561                             " lstat 0x%x\n", sc->res.unit, event.pnum,
1562                             event.event, event.mstat, event.lstat);
1563
1564                 if (event.event & DATA_IND) {
1565                         DLOG(DIGIDB_IRQ, (sc->dev, "port %d: DATA_IND\n",
1566                             event.pnum));
1567                         wrapmask = port->rxbufsize - 1;
1568                         head = bc->rin;
1569                         tail = bc->rout;
1570
1571                         size = 0;
1572                         if (!(tp->t_state & TS_ISOPEN)) {
1573                                 bc->rout = head;
1574                                 goto end_of_data;
1575                         }
1576                         while (head != tail) {
1577                                 int top;
1578
1579                                 DLOG(DIGIDB_INT, (sc->dev,
1580                                     "port %d: p rx head = %d tail = %d\n",
1581                                     event.pnum, head, tail));
1582                                 top = (head > tail) ? head : wrapmask + 1;
1583                                 sc->towin(sc, port->rxwin);
1584                                 size = top - tail;
1585                                 if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
1586                                         size = b_to_q((char *)port->rxbuf +
1587                                             tail, size, &tp->t_rawq);
1588                                         tail = top - size;
1589                                         ttwakeup(tp);
1590                                 } else for (; tail < top;) {
1591                                         linesw[tp->t_line].
1592                                             l_rint(port->rxbuf[tail], tp);
1593                                         sc->towin(sc, port->rxwin);
1594                                         size--;
1595                                         tail++;
1596                                         if (tp->t_state & TS_TBLOCK)
1597                                                 break;
1598                                 }
1599                                 tail &= wrapmask;
1600                                 sc->setwin(sc, 0);
1601                                 bc->rout = tail;
1602                                 head = bc->rin;
1603                                 if (size)
1604                                         break;
1605                         }
1606
1607                         if (bc->orun) {
1608                                 CE_RECORD(port, CE_OVERRUN);
1609                                 log(LOG_ERR, "digi%d: port%d: %s\n",
1610                                     sc->res.unit, event.pnum,
1611                                     digi_errortxt(CE_OVERRUN));
1612                                 bc->orun = 0;
1613                         }
1614 end_of_data:
1615                         if (size) {
1616                                 tp->t_state |= TS_TBLOCK;
1617                                 port->status |= PAUSE_RX;
1618                                 DLOG(DIGIDB_RX, (sc->dev, "port %d: pause RX\n",
1619                                     event.pnum));
1620                         } else {
1621                                 bc->idata = 1;
1622                         }
1623                 }
1624
1625                 if (event.event & MODEMCHG_IND) {
1626                         DLOG(DIGIDB_MODEM, (sc->dev, "port %d: MODEMCHG_IND\n",
1627                             event.pnum));
1628
1629                         if ((event.mstat ^ event.lstat) & port->cd) {
1630                                 sc->hidewin(sc);
1631                                 linesw[tp->t_line].l_modem
1632                                     (tp, event.mstat & port->cd);
1633                                 sc->setwin(sc, 0);
1634                                 wakeup(TSA_CARR_ON(tp));
1635                         }
1636
1637                         if (event.mstat & sc->csigs->ri) {
1638                                 DLOG(DIGIDB_RI, (sc->dev, "port %d: RING\n",
1639                                     event.pnum));
1640                                 if (port->send_ring) {
1641                                         linesw[tp->t_line].l_rint('R', tp);
1642                                         linesw[tp->t_line].l_rint('I', tp);
1643                                         linesw[tp->t_line].l_rint('N', tp);
1644                                         linesw[tp->t_line].l_rint('G', tp);
1645                                         linesw[tp->t_line].l_rint('\r', tp);
1646                                         linesw[tp->t_line].l_rint('\n', tp);
1647                                 }
1648                         }
1649                 }
1650                 if (event.event & BREAK_IND) {
1651                         DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n",
1652                             event.pnum));
1653                         linesw[tp->t_line].l_rint(TTY_BI, tp);
1654                 }
1655                 if (event.event & (LOWTX_IND | EMPTYTX_IND)) {
1656                         DLOG(DIGIDB_IRQ, (sc->dev, "port %d:%s%s\n",
1657                             event.pnum,
1658                             event.event & LOWTX_IND ? " LOWTX" : "",
1659                             event.event & EMPTYTX_IND ?  " EMPTYTX" : ""));
1660                         (*linesw[tp->t_line].l_start)(tp);
1661                 }
1662         }
1663         sc->gdata->eout = etail;
1664 eoi:
1665         if (sc->window != 0)
1666                 sc->towin(sc, 0);
1667         if (window != 0)
1668                 sc->towin(sc, window);
1669 }
1670
1671 static void
1672 digistart(struct tty *tp)
1673 {
1674         int unit;
1675         int pnum;
1676         struct digi_p *port;
1677         struct digi_softc *sc;
1678         volatile struct board_chan *bc;
1679         int head, tail;
1680         int size, ocount, totcnt = 0;
1681         int wmask;
1682
1683         unit = MINOR_TO_UNIT(minor(tp->t_dev));
1684         pnum = MINOR_TO_PORT(minor(tp->t_dev));
1685
1686         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1687         KASSERT(sc, ("digi%d: softc not allocated in digistart\n", unit));
1688
1689         port = &sc->ports[pnum];
1690         bc = port->bc;
1691
1692         wmask = port->txbufsize - 1;
1693
1694         crit_enter();
1695         port->lcc = tp->t_outq.c_cc;
1696         sc->setwin(sc, 0);
1697         if (!(tp->t_state & TS_TBLOCK)) {
1698                 if (port->status & PAUSE_RX) {
1699                         DLOG(DIGIDB_RX, (sc->dev, "port %d: resume RX\n",
1700                             pnum));
1701                         /*
1702                          * CAREFUL - braces are needed here if the DLOG is
1703                          * optimised out!
1704                          */
1705                 }
1706                 port->status &= ~PAUSE_RX;
1707                 bc->idata = 1;
1708         }
1709         if (!(tp->t_state & TS_TTSTOP) && port->status & PAUSE_TX) {
1710                 DLOG(DIGIDB_TX, (sc->dev, "port %d: resume TX\n", pnum));
1711                 port->status &= ~PAUSE_TX;
1712                 fepcmd_w(port, RESUMETX, 0, 10);
1713         }
1714         if (tp->t_outq.c_cc == 0)
1715                 tp->t_state &= ~TS_BUSY;
1716         else
1717                 tp->t_state |= TS_BUSY;
1718
1719         head = bc->tin;
1720         while (tp->t_outq.c_cc != 0) {
1721                 tail = bc->tout;
1722                 DLOG(DIGIDB_INT, (sc->dev, "port%d: s tx head = %d tail = %d\n",
1723                     pnum, head, tail));
1724
1725                 if (head < tail)
1726                         size = tail - head - 1;
1727                 else {
1728                         size = port->txbufsize - head;
1729                         if (tail == 0)
1730                                 size--;
1731                 }
1732
1733                 if (size == 0)
1734                         break;
1735                 sc->towin(sc, port->txwin);
1736                 ocount = q_to_b(&tp->t_outq, port->txbuf + head, size);
1737                 totcnt += ocount;
1738                 head += ocount;
1739                 head &= wmask;
1740                 sc->setwin(sc, 0);
1741                 bc->tin = head;
1742                 bc->iempty = 1;
1743                 bc->ilow = 1;
1744         }
1745         port->lostcc = tp->t_outq.c_cc;
1746         tail = bc->tout;
1747         if (head < tail)
1748                 size = port->txbufsize - tail + head;
1749         else
1750                 size = head - tail;
1751
1752         port->lbuf = size;
1753         DLOG(DIGIDB_INT, (sc->dev, "port%d: s total cnt = %d\n", pnum, totcnt));
1754         ttwwakeup(tp);
1755         crit_exit();
1756 }
1757
1758 static void
1759 digistop(struct tty *tp, int rw)
1760 {
1761         struct digi_softc *sc;
1762         int unit;
1763         int pnum;
1764         struct digi_p *port;
1765
1766         unit = MINOR_TO_UNIT(minor(tp->t_dev));
1767         pnum = MINOR_TO_PORT(minor(tp->t_dev));
1768
1769         sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1770         KASSERT(sc, ("digi%d: softc not allocated in digistop\n", unit));
1771         port = sc->ports + pnum;
1772
1773         DLOG(DIGIDB_TX, (sc->dev, "port %d: pause TX\n", pnum));
1774         port->status |= PAUSE_TX;
1775         fepcmd_w(port, PAUSETX, 0, 10);
1776 }
1777
1778 static void
1779 fepcmd(struct digi_p *port, int cmd, int op1, int ncmds)
1780 {
1781         u_char *mem;
1782         unsigned tail, head;
1783         int count, n;
1784
1785         mem = port->sc->memcmd;
1786
1787         port->sc->setwin(port->sc, 0);
1788
1789         head = port->sc->gdata->cin;
1790         mem[head + 0] = cmd;
1791         mem[head + 1] = port->pnum;
1792         *(u_short *)(mem + head + 2) = op1;
1793
1794         head = (head + 4) & port->sc->gdata->cmax;
1795         port->sc->gdata->cin = head;
1796
1797         for (count = FEPTIMEOUT; count > 0; count--) {
1798                 head = port->sc->gdata->cin;
1799                 tail = port->sc->gdata->cout;
1800                 n = (head - tail) & port->sc->gdata->cmax;
1801
1802                 if (n <= ncmds * sizeof(short) * 4)
1803                         break;
1804         }
1805         if (count == 0)
1806                 log(LOG_ERR, "digi%d: port%d: timeout on FEP command\n",
1807                     port->sc->res.unit, port->pnum);
1808 }
1809
1810 const char *
1811 digi_errortxt(int id)
1812 {
1813         static const char *error_desc[] = {
1814                 "silo overflow",
1815                 "interrupt-level buffer overflow",
1816                 "tty-level buffer overflow",
1817         };
1818
1819         KASSERT(id >= 0 && id < sizeof(error_desc) / sizeof(error_desc[0]),
1820             ("Unexpected digi error id %d\n", id));
1821
1822         return (error_desc[id]);
1823 }
1824
1825 int
1826 digi_attach(struct digi_softc *sc)
1827 {
1828         sc->res.ctldev = make_dev(&digi_ops,
1829             (sc->res.unit << 16) | CTRL_DEV, UID_ROOT, GID_WHEEL,
1830             0600, "digi%r.ctl", sc->res.unit);
1831
1832         digi_loaddata(sc);
1833         digi_init(sc);
1834         digi_freedata(sc);
1835
1836         return (0);
1837 }
1838
1839 static int
1840 digi_inuse(struct digi_softc *sc)
1841 {
1842         int i;
1843
1844         for (i = 0; i < sc->numports; i++)
1845                 if (sc->ttys[i].t_state & TS_ISOPEN) {
1846                         DLOG(DIGIDB_INIT, (sc->dev, "port%d: busy\n", i));
1847                         return (1);
1848                 } else if (sc->ports[i].wopeners || sc->ports[i].opencnt) {
1849                         DLOG(DIGIDB_INIT, (sc->dev, "port%d: blocked in open\n",
1850                             i));
1851                         return (1);
1852                 }
1853         return (0);
1854 }
1855
1856 static void
1857 digi_free_state(struct digi_softc *sc)
1858 {
1859         int d, i;
1860
1861         /* Blow it all away */
1862
1863         for (i = 0; i < sc->numports; i++)
1864                 for (d = 0; d < 6; d++)
1865                         destroy_dev(sc->ports[i].dev[d]);
1866
1867         callout_stop(&sc->callout);
1868         callout_stop(&sc->inttest);
1869
1870         bus_teardown_intr(sc->dev, sc->res.irq, sc->res.irqHandler);
1871 #ifdef DIGI_INTERRUPT
1872         if (sc->res.irq != NULL) {
1873                 bus_release_resource(dev, SYS_RES_IRQ, sc->res.irqrid,
1874                     sc->res.irq);
1875                 sc->res.irq = NULL;
1876         }
1877 #endif
1878         if (sc->numports) {
1879                 KASSERT(sc->ports, ("digi%d: Lost my ports ?", sc->res.unit));
1880                 KASSERT(sc->ttys, ("digi%d: Lost my ttys ?", sc->res.unit));
1881                 kfree(sc->ports, M_TTYS);
1882                 sc->ports = NULL;
1883                 kfree(sc->ttys, M_TTYS);
1884                 sc->ttys = NULL;
1885                 sc->numports = 0;
1886         }
1887
1888         sc->status = DIGI_STATUS_NOTINIT;
1889 }
1890
1891 int
1892 digi_detach(device_t dev)
1893 {
1894         struct digi_softc *sc = device_get_softc(dev);
1895
1896         DLOG(DIGIDB_INIT, (sc->dev, "detaching\n"));
1897
1898         /* If we're INIT'd, numports must be 0 */
1899         KASSERT(sc->numports == 0 || sc->status != DIGI_STATUS_NOTINIT,
1900             ("digi%d: numports(%d) & status(%d) are out of sync",
1901             sc->res.unit, sc->numports, (int)sc->status));
1902
1903         if (digi_inuse(sc))
1904                 return (EBUSY);
1905
1906         digi_free_state(sc);
1907
1908         destroy_dev(sc->res.ctldev);
1909
1910         if (sc->res.mem != NULL) {
1911                 bus_release_resource(dev, SYS_RES_MEMORY, sc->res.mrid,
1912                     sc->res.mem);
1913                 sc->res.mem = NULL;
1914         }
1915         if (sc->res.io != NULL) {
1916                 bus_release_resource(dev, SYS_RES_IOPORT, sc->res.iorid,
1917                     sc->res.io);
1918                 sc->res.io = NULL;
1919         }
1920         if (sc->msize) {
1921                 pmap_unmapdev((vm_offset_t)sc->vmem, sc->msize);
1922                 sc->msize = 0;
1923         }
1924
1925         return (0);
1926 }
1927
1928 int
1929 digi_shutdown(device_t dev)
1930 {
1931         return (0);
1932 }
1933
1934 MODULE_VERSION(digi, 1);