digi.c revision 130344
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: head/sys/dev/digi/digi.c 130344 2004-06-11 11:16:26Z phk $ 30 */ 31 32/*- 33 * TODO: 34 * Figure out what the con bios stuff is supposed to do 35 * Test with *LOTS* more cards - I only have a PCI8r and an ISA Xem. 36 */ 37 38#include "opt_compat.h" 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/proc.h> 43#include <sys/conf.h> 44#include <sys/linker.h> 45#include <sys/kernel.h> 46#include <sys/mbuf.h> 47#include <sys/malloc.h> 48#include <sys/module.h> 49#include <sys/tty.h> 50#include <sys/syslog.h> 51#include <sys/fcntl.h> 52#include <sys/bus.h> 53#include <sys/bus.h> 54#include <machine/resource.h> 55 56#include <sys/digiio.h> 57#include <dev/digi/digireg.h> 58#include <dev/digi/digi.h> 59#include <dev/digi/digi_mod.h> 60#include <dev/digi/digi_pci.h> 61 62 63#define CTRL_DEV 0x800000 64#define CALLOUT_MASK 0x400000 65#define CONTROL_INIT_STATE 0x100000 66#define CONTROL_LOCK_STATE 0x200000 67#define CONTROL_MASK (CTRL_DEV|CONTROL_INIT_STATE|CONTROL_LOCK_STATE) 68#define UNIT_MASK 0x030000 69#define PORT_MASK 0x0000FF 70#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev))) 71#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK) 72#define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK)>>16) 73#define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK) 74 75static d_open_t digiopen; 76static d_close_t digiclose; 77static d_read_t digiread; 78static d_write_t digiwrite; 79static d_ioctl_t digiioctl; 80 81static void digistop(struct tty *tp, int rw); 82static int digimctl(struct digi_p *port, int bits, int how); 83static void digi_poll(void *ptr); 84static void digi_freemoduledata(struct digi_softc *); 85static void fepcmd(struct digi_p *port, int cmd, int op, int ncmds); 86static void digistart(struct tty *tp); 87static int digiparam(struct tty *tp, struct termios *t); 88static void digihardclose(struct digi_p *port); 89static void digi_intr(void *); 90static int digi_init(struct digi_softc *_sc); 91static int digi_loadmoduledata(struct digi_softc *); 92static int digi_inuse(struct digi_softc *); 93static void digi_free_state(struct digi_softc *); 94 95#define fepcmd_b(port, cmd, op1, op2, ncmds) \ 96 fepcmd(port, cmd, (op2 << 8) | op1, ncmds) 97#define fepcmd_w fepcmd 98 99 100static speed_t digidefaultrate = TTYDEF_SPEED; 101 102struct con_bios { 103 struct con_bios *next; 104 u_char *bios; 105 size_t size; 106}; 107 108static struct con_bios *con_bios_list; 109devclass_t digi_devclass; 110static char driver_name[] = "digi"; 111unsigned digi_debug = 0; 112 113static struct speedtab digispeedtab[] = { 114 { 0, 0}, /* old (sysV-like) Bx codes */ 115 { 50, 1}, 116 { 75, 2}, 117 { 110, 3}, 118 { 134, 4}, 119 { 150, 5}, 120 { 200, 6}, 121 { 300, 7}, 122 { 600, 8}, 123 { 1200, 9}, 124 { 1800, 10}, 125 { 2400, 11}, 126 { 4800, 12}, 127 { 9600, 13}, 128 { 19200, 14}, 129 { 38400, 15}, 130 { 57600, (02000 | 1)}, 131 { 76800, (02000 | 2)}, 132 { 115200, (02000 | 3)}, 133 { 230400, (02000 | 6)}, 134 { -1, -1} 135}; 136 137const struct digi_control_signals digi_xixe_signals = { 138 0x02, 0x08, 0x10, 0x20, 0x40, 0x80 139}; 140 141const struct digi_control_signals digi_normal_signals = { 142 0x02, 0x80, 0x20, 0x10, 0x40, 0x01 143}; 144 145static struct cdevsw digi_sw = { 146 .d_version = D_VERSION, 147 .d_open = digiopen, 148 .d_close = digiclose, 149 .d_read = digiread, 150 .d_write = digiwrite, 151 .d_ioctl = digiioctl, 152 .d_name = driver_name, 153 .d_flags = D_TTY | D_NEEDGIANT, 154}; 155 156static void 157digi_poll(void *ptr) 158{ 159 struct digi_softc *sc; 160 161 sc = (struct digi_softc *)ptr; 162 callout_handle_init(&sc->callout); 163 digi_intr(sc); 164 sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); 165} 166 167static void 168digi_int_test(void *v) 169{ 170 struct digi_softc *sc = v; 171 172 callout_handle_init(&sc->inttest); 173#ifdef DIGI_INTERRUPT 174 if (sc->intr_timestamp.tv_sec || sc->intr_timestamp.tv_usec) { 175 /* interrupt OK! */ 176 return; 177 } 178 log(LOG_ERR, "digi%d: Interrupt didn't work, use polled mode\n", unit); 179#endif 180 sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); 181} 182 183static void 184digi_freemoduledata(struct digi_softc *sc) 185{ 186 if (sc->fep.data != NULL) { 187 free(sc->fep.data, M_TTYS); 188 sc->fep.data = NULL; 189 } 190 if (sc->link.data != NULL) { 191 free(sc->link.data, M_TTYS); 192 sc->link.data = NULL; 193 } 194 if (sc->bios.data != NULL) { 195 free(sc->bios.data, M_TTYS); 196 sc->bios.data = NULL; 197 } 198} 199 200static int 201digi_bcopy(const void *vfrom, void *vto, size_t sz) 202{ 203 volatile const char *from = (volatile const char *)vfrom; 204 volatile char *to = (volatile char *)vto; 205 size_t i; 206 207 for (i = 0; i < sz; i++) 208 *to++ = *from++; 209 210 from = (const volatile char *)vfrom; 211 to = (volatile char *)vto; 212 for (i = 0; i < sz; i++) 213 if (*to++ != *from++) 214 return (0); 215 return (1); 216} 217 218void 219digi_delay(struct digi_softc *sc, const char *txt, u_long timo) 220{ 221 if (cold) 222 DELAY(timo * 1000000 / hz); 223 else 224 tsleep(sc, PUSER | PCATCH, txt, timo); 225} 226 227static int 228digi_init(struct digi_softc *sc) 229{ 230 int i, cnt, resp; 231 u_char *ptr; 232 int lowwater; 233 struct digi_p *port; 234 volatile struct board_chan *bc; 235 236 ptr = NULL; 237 238 if (sc->status == DIGI_STATUS_DISABLED) { 239 log(LOG_ERR, "digi%d: Cannot init a disabled card\n", 240 sc->res.unit); 241 return (EIO); 242 } 243 if (sc->bios.data == NULL) { 244 log(LOG_ERR, "digi%d: Cannot init without BIOS\n", 245 sc->res.unit); 246 return (EIO); 247 } 248#if 0 249 if (sc->link.data == NULL && sc->model >= PCCX) { 250 log(LOG_ERR, "digi%d: Cannot init without link info\n", 251 sc->res.unit); 252 return (EIO); 253 } 254#endif 255 if (sc->fep.data == NULL) { 256 log(LOG_ERR, "digi%d: Cannot init without fep code\n", 257 sc->res.unit); 258 return (EIO); 259 } 260 sc->status = DIGI_STATUS_NOTINIT; 261 262 if (sc->numports) { 263 /* 264 * We're re-initialising - maybe because someone's attached 265 * another port module. For now, we just re-initialise 266 * everything. 267 */ 268 if (digi_inuse(sc)) 269 return (EBUSY); 270 271 digi_free_state(sc); 272 } 273 274 ptr = sc->setwin(sc, MISCGLOBAL); 275 for (i = 0; i < 16; i += 2) 276 vW(ptr + i) = 0; 277 278 switch (sc->model) { 279 case PCXEVE: 280 outb(sc->wport, 0xff); /* window 7 */ 281 ptr = sc->vmem + (BIOSCODE & 0x1fff); 282 283 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { 284 device_printf(sc->dev, "BIOS upload failed\n"); 285 return (EIO); 286 } 287 288 outb(sc->port, FEPCLR); 289 break; 290 291 case PCXE: 292 case PCXI: 293 case PCCX: 294 ptr = sc->setwin(sc, BIOSCODE + ((0xf000 - sc->mem_seg) << 4)); 295 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { 296 device_printf(sc->dev, "BIOS upload failed\n"); 297 return (EIO); 298 } 299 break; 300 301 case PCXEM: 302 case PCIEPCX: 303 case PCIXR: 304 if (sc->pcibus) 305 PCIPORT = FEPRST; 306 else 307 outb(sc->port, FEPRST | FEPMEM); 308 309 for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & 310 FEPMASK) != FEPRST; i++) { 311 if (i > hz) { 312 log(LOG_ERR, "digi%d: %s init reset failed\n", 313 sc->res.unit, sc->name); 314 return (EIO); 315 } 316 digi_delay(sc, "digiinit0", 5); 317 } 318 DLOG(DIGIDB_INIT, (sc->dev, "Got init reset after %d us\n", i)); 319 320 /* Now upload the BIOS */ 321 cnt = (sc->bios.size < sc->win_size - BIOSOFFSET) ? 322 sc->bios.size : sc->win_size - BIOSOFFSET; 323 324 ptr = sc->setwin(sc, BIOSOFFSET); 325 if (!digi_bcopy(sc->bios.data, ptr, cnt)) { 326 device_printf(sc->dev, "BIOS upload (1) failed\n"); 327 return (EIO); 328 } 329 330 if (cnt != sc->bios.size) { 331 /* and the second part */ 332 ptr = sc->setwin(sc, sc->win_size); 333 if (!digi_bcopy(sc->bios.data + cnt, ptr, 334 sc->bios.size - cnt)) { 335 device_printf(sc->dev, "BIOS upload failed\n"); 336 return (EIO); 337 } 338 } 339 340 ptr = sc->setwin(sc, 0); 341 vW(ptr + 0) = 0x0401; 342 vW(ptr + 2) = 0x0bf0; 343 vW(ptr + 4) = 0x0000; 344 vW(ptr + 6) = 0x0000; 345 346 break; 347 } 348 349 DLOG(DIGIDB_INIT, (sc->dev, "BIOS uploaded\n")); 350 351 ptr = sc->setwin(sc, MISCGLOBAL); 352 W(ptr) = 0; 353 354 if (sc->pcibus) { 355 PCIPORT = FEPCLR; 356 resp = FEPRST; 357 } else if (sc->model == PCXEVE) { 358 outb(sc->port, FEPCLR); 359 resp = FEPRST; 360 } else { 361 outb(sc->port, FEPCLR | FEPMEM); 362 resp = FEPRST | FEPMEM; 363 } 364 365 for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & FEPMASK) 366 == resp; i++) { 367 if (i > hz) { 368 log(LOG_ERR, "digi%d: BIOS start failed\n", 369 sc->res.unit); 370 return (EIO); 371 } 372 digi_delay(sc, "digibios0", 5); 373 } 374 375 DLOG(DIGIDB_INIT, (sc->dev, "BIOS started after %d us\n", i)); 376 377 for (i = 0; vW(ptr) != *(u_short *)"GD"; i++) { 378 if (i > 2*hz) { 379 log(LOG_ERR, "digi%d: BIOS boot failed " 380 "(0x%02x != 0x%02x)\n", 381 sc->res.unit, vW(ptr), *(u_short *)"GD"); 382 return (EIO); 383 } 384 digi_delay(sc, "digibios1", 5); 385 } 386 387 DLOG(DIGIDB_INIT, (sc->dev, "BIOS booted after %d iterations\n", i)); 388 389 if (sc->link.data != NULL) { 390 DLOG(DIGIDB_INIT, (sc->dev, "Loading link data\n")); 391 ptr = sc->setwin(sc, 0xcd0); 392 digi_bcopy(sc->link.data, ptr, 21); /* XXX 21 ? */ 393 } 394 395 /* load FEP/OS */ 396 397 switch (sc->model) { 398 case PCXE: 399 case PCXEVE: 400 case PCXI: 401 ptr = sc->setwin(sc, sc->model == PCXI ? 0x2000 : 0x0); 402 digi_bcopy(sc->fep.data, ptr, sc->fep.size); 403 404 /* A BIOS request to move our data to 0x2000 */ 405 ptr = sc->setwin(sc, MBOX); 406 vW(ptr + 0) = 2; 407 vW(ptr + 2) = sc->mem_seg + FEPCODESEG; 408 vW(ptr + 4) = 0; 409 vW(ptr + 6) = FEPCODESEG; 410 vW(ptr + 8) = 0; 411 vW(ptr + 10) = sc->fep.size; 412 413 /* Run the BIOS request */ 414 outb(sc->port, FEPREQ | FEPMEM); 415 outb(sc->port, FEPCLR | FEPMEM); 416 417 for (i = 0; W(ptr); i++) { 418 if (i > hz) { 419 log(LOG_ERR, "digi%d: FEP/OS move failed\n", 420 sc->res.unit); 421 sc->hidewin(sc); 422 return (EIO); 423 } 424 digi_delay(sc, "digifep0", 5); 425 } 426 DLOG(DIGIDB_INIT, 427 (sc->dev, "FEP/OS moved after %d iterations\n", i)); 428 429 /* Clear the confirm word */ 430 ptr = sc->setwin(sc, FEPSTAT); 431 vW(ptr + 0) = 0; 432 433 /* A BIOS request to execute the FEP/OS */ 434 ptr = sc->setwin(sc, MBOX); 435 vW(ptr + 0) = 0x01; 436 vW(ptr + 2) = FEPCODESEG; 437 vW(ptr + 4) = 0x04; 438 439 /* Run the BIOS request */ 440 outb(sc->port, FEPREQ); 441 outb(sc->port, FEPCLR); 442 443 ptr = sc->setwin(sc, FEPSTAT); 444 445 break; 446 447 case PCXEM: 448 case PCIEPCX: 449 case PCIXR: 450 DLOG(DIGIDB_INIT, (sc->dev, "Loading FEP/OS\n")); 451 452 cnt = (sc->fep.size < sc->win_size - BIOSOFFSET) ? 453 sc->fep.size : sc->win_size - BIOSOFFSET; 454 455 ptr = sc->setwin(sc, BIOSOFFSET); 456 digi_bcopy(sc->fep.data, ptr, cnt); 457 458 if (cnt != sc->fep.size) { 459 ptr = sc->setwin(sc, BIOSOFFSET + cnt); 460 digi_bcopy(sc->fep.data + cnt, ptr, 461 sc->fep.size - cnt); 462 } 463 464 DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS loaded\n")); 465 466 ptr = sc->setwin(sc, 0xc30); 467 W(ptr + 4) = 0x1004; 468 W(ptr + 6) = 0xbfc0; 469 W(ptr + 0) = 0x03; 470 W(ptr + 2) = 0x00; 471 472 /* Clear the confirm word */ 473 ptr = sc->setwin(sc, FEPSTAT); 474 W(ptr + 0) = 0; 475 476 if (sc->port) 477 outb(sc->port, 0); /* XXX necessary ? */ 478 479 break; 480 481 case PCCX: 482 ptr = sc->setwin(sc, 0xd000); 483 digi_bcopy(sc->fep.data, ptr, sc->fep.size); 484 485 /* A BIOS request to execute the FEP/OS */ 486 ptr = sc->setwin(sc, 0xc40); 487 W(ptr + 0) = 1; 488 W(ptr + 2) = FEPCODE >> 4; 489 W(ptr + 4) = 4; 490 491 /* Clear the confirm word */ 492 ptr = sc->setwin(sc, FEPSTAT); 493 W(ptr + 0) = 0; 494 495 /* Run the BIOS request */ 496 outb(sc->port, FEPREQ | FEPMEM); /* send interrupt to BIOS */ 497 outb(sc->port, FEPCLR | FEPMEM); 498 break; 499 } 500 501 /* Now wait 'till the FEP/OS has booted */ 502 for (i = 0; vW(ptr) != *(u_short *)"OS"; i++) { 503 if (i > 2*hz) { 504 log(LOG_ERR, "digi%d: FEP/OS start failed " 505 "(0x%02x != 0x%02x)\n", 506 sc->res.unit, vW(ptr), *(u_short *)"OS"); 507 sc->hidewin(sc); 508 return (EIO); 509 } 510 digi_delay(sc, "digifep1", 5); 511 } 512 513 DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS started after %d iterations\n", i)); 514 515 if (sc->model >= PCXEM) { 516 ptr = sc->setwin(sc, 0xe04); 517 vW(ptr) = 2; 518 ptr = sc->setwin(sc, 0xc02); 519 sc->numports = vW(ptr); 520 } else { 521 ptr = sc->setwin(sc, 0xc22); 522 sc->numports = vW(ptr); 523 } 524 525 if (sc->numports == 0) { 526 device_printf(sc->dev, "%s, 0 ports found\n", sc->name); 527 sc->hidewin(sc); 528 return (0); 529 } 530 531 if (sc->numports > 256) { 532 /* Our minor numbering scheme is broken for more than 256 */ 533 device_printf(sc->dev, "%s, 256 ports (%d ports found)\n", 534 sc->name, sc->numports); 535 sc->numports = 256; 536 } else 537 device_printf(sc->dev, "%s, %d ports found\n", sc->name, 538 sc->numports); 539 540 if (sc->ports) 541 free(sc->ports, M_TTYS); 542 sc->ports = malloc(sizeof(struct digi_p) * sc->numports, 543 M_TTYS, M_WAITOK | M_ZERO); 544 545 if (sc->ttys) 546 free(sc->ttys, M_TTYS); 547 sc->ttys = malloc(sizeof(struct tty) * sc->numports, 548 M_TTYS, M_WAITOK | M_ZERO); 549 550 /* 551 * XXX Should read port 0xc90 for an array of 2byte values, 1 per 552 * port. If the value is 0, the port is broken.... 553 */ 554 555 ptr = sc->setwin(sc, 0); 556 557 /* We should now init per-port structures */ 558 bc = (volatile struct board_chan *)(ptr + CHANSTRUCT); 559 sc->gdata = (volatile struct global_data *)(ptr + FEP_GLOBAL); 560 561 sc->memcmd = ptr + sc->gdata->cstart; 562 sc->memevent = ptr + sc->gdata->istart; 563 564 for (i = 0; i < sc->numports; i++, bc++) { 565 port = sc->ports + i; 566 port->pnum = i; 567 port->sc = sc; 568 port->status = ENABLED; 569 port->tp = sc->ttys + i; 570 port->bc = bc; 571 572 if (sc->model == PCXEVE) { 573 port->txbuf = ptr + 574 (((bc->tseg - sc->mem_seg) << 4) & 0x1fff); 575 port->rxbuf = ptr + 576 (((bc->rseg - sc->mem_seg) << 4) & 0x1fff); 577 port->txwin = FEPWIN | ((bc->tseg - sc->mem_seg) >> 9); 578 port->rxwin = FEPWIN | ((bc->rseg - sc->mem_seg) >> 9); 579 } else if (sc->model == PCXI || sc->model == PCXE) { 580 port->txbuf = ptr + ((bc->tseg - sc->mem_seg) << 4); 581 port->rxbuf = ptr + ((bc->rseg - sc->mem_seg) << 4); 582 port->txwin = port->rxwin = 0; 583 } else { 584 port->txbuf = ptr + 585 (((bc->tseg - sc->mem_seg) << 4) % sc->win_size); 586 port->rxbuf = ptr + 587 (((bc->rseg - sc->mem_seg) << 4) % sc->win_size); 588 port->txwin = FEPWIN | 589 (((bc->tseg - sc->mem_seg) << 4) / sc->win_size); 590 port->rxwin = FEPWIN | 591 (((bc->rseg - sc->mem_seg) << 4) / sc->win_size); 592 } 593 port->txbufsize = bc->tmax + 1; 594 port->rxbufsize = bc->rmax + 1; 595 596 lowwater = port->txbufsize >> 2; 597 if (lowwater > 1024) 598 lowwater = 1024; 599 sc->setwin(sc, 0); 600 fepcmd_w(port, STXLWATER, lowwater, 10); 601 fepcmd_w(port, SRXLWATER, port->rxbufsize >> 2, 10); 602 fepcmd_w(port, SRXHWATER, (3 * port->rxbufsize) >> 2, 10); 603 604 bc->edelay = 100; 605 port->dtr_wait = 3 * hz; 606 607 /* 608 * We don't use all the flags from <sys/ttydefaults.h> since 609 * they are only relevant for logins. It's important to have 610 * echo off initially so that the line doesn't start blathering 611 * before the echo flag can be turned off. 612 */ 613 port->it_in.c_iflag = 0; 614 port->it_in.c_oflag = 0; 615 port->it_in.c_cflag = TTYDEF_CFLAG; 616 port->it_in.c_lflag = 0; 617 termioschars(&port->it_in); 618 port->it_in.c_ispeed = port->it_in.c_ospeed = digidefaultrate; 619 port->it_out = port->it_in; 620 port->send_ring = 1; /* Default action on signal RI */ 621 622 port->dev[0] = make_dev(&digi_sw, (sc->res.unit << 16) + i, 623 UID_ROOT, GID_WHEEL, 0600, "ttyD%d.%d", sc->res.unit, i); 624 port->dev[1] = make_dev(&digi_sw, ((sc->res.unit << 16) + i) | 625 CONTROL_INIT_STATE, UID_ROOT, GID_WHEEL, 626 0600, "ttyiD%d.%d", sc->res.unit, i); 627 port->dev[2] = make_dev(&digi_sw, ((sc->res.unit << 16) + i) | 628 CONTROL_LOCK_STATE, UID_ROOT, GID_WHEEL, 629 0600, "ttylD%d.%d", sc->res.unit, i); 630 port->dev[3] = make_dev(&digi_sw, ((sc->res.unit << 16) + i) | 631 CALLOUT_MASK, UID_UUCP, GID_DIALER, 632 0660, "cuaD%d.%d", sc->res.unit, i); 633 port->dev[4] = make_dev(&digi_sw, ((sc->res.unit << 16) + i) | 634 CALLOUT_MASK | CONTROL_INIT_STATE, UID_UUCP, GID_DIALER, 635 0660, "cuaiD%d.%d", sc->res.unit, i); 636 port->dev[5] = make_dev(&digi_sw, ((sc->res.unit << 16) + i) | 637 CALLOUT_MASK | CONTROL_LOCK_STATE, UID_UUCP, GID_DIALER, 638 0660, "cualD%d.%d", sc->res.unit, i); 639 } 640 641 sc->hidewin(sc); 642 sc->inttest = timeout(digi_int_test, sc, hz); 643 /* fepcmd_w(&sc->ports[0], 0xff, 0, 0); */ 644 sc->status = DIGI_STATUS_ENABLED; 645 646 return (0); 647} 648 649static int 650digimctl(struct digi_p *port, int bits, int how) 651{ 652 int mstat; 653 654 if (how == DMGET) { 655 port->sc->setwin(port->sc, 0); 656 mstat = port->bc->mstat; 657 port->sc->hidewin(port->sc); 658 bits = TIOCM_LE; 659 if (mstat & port->sc->csigs->rts) 660 bits |= TIOCM_RTS; 661 if (mstat & port->cd) 662 bits |= TIOCM_CD; 663 if (mstat & port->dsr) 664 bits |= TIOCM_DSR; 665 if (mstat & port->sc->csigs->cts) 666 bits |= TIOCM_CTS; 667 if (mstat & port->sc->csigs->ri) 668 bits |= TIOCM_RI; 669 if (mstat & port->sc->csigs->dtr) 670 bits |= TIOCM_DTR; 671 return (bits); 672 } 673 674 /* Only DTR and RTS may be set */ 675 mstat = 0; 676 if (bits & TIOCM_DTR) 677 mstat |= port->sc->csigs->dtr; 678 if (bits & TIOCM_RTS) 679 mstat |= port->sc->csigs->rts; 680 681 switch (how) { 682 case DMSET: 683 fepcmd_b(port, SETMODEM, mstat, ~mstat, 0); 684 break; 685 case DMBIS: 686 fepcmd_b(port, SETMODEM, mstat, 0, 0); 687 break; 688 case DMBIC: 689 fepcmd_b(port, SETMODEM, 0, mstat, 0); 690 break; 691 } 692 693 return (0); 694} 695 696static int 697digiopen(dev_t dev, int flag, int mode, struct thread *td) 698{ 699 struct digi_softc *sc; 700 struct tty *tp; 701 int unit; 702 int pnum; 703 struct digi_p *port; 704 int s; 705 int error, mynor; 706 volatile struct board_chan *bc; 707 708 error = 0; 709 mynor = minor(dev); 710 unit = MINOR_TO_UNIT(minor(dev)); 711 pnum = MINOR_TO_PORT(minor(dev)); 712 713 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 714 if (!sc) 715 return (ENXIO); 716 717 if (sc->status != DIGI_STATUS_ENABLED) { 718 DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n")); 719 return (ENXIO); 720 } 721 if (pnum >= sc->numports) { 722 DLOG(DIGIDB_OPEN, (sc->dev, "port%d: Doesn't exist\n", pnum)); 723 return (ENXIO); 724 } 725 if (mynor & (CTRL_DEV | CONTROL_MASK)) { 726 sc->opencnt++; 727 return (0); 728 } 729 port = &sc->ports[pnum]; 730 tp = dev->si_tty = port->tp; 731 bc = port->bc; 732 733 s = spltty(); 734 735open_top: 736 while (port->status & DIGI_DTR_OFF) { 737 port->wopeners++; 738 error = tsleep(&port->dtr_wait, TTIPRI | PCATCH, "digidtr", 0); 739 port->wopeners--; 740 if (error) 741 goto out; 742 } 743 744 if (tp->t_state & TS_ISOPEN) { 745 /* 746 * The device is open, so everything has been initialized. 747 * Handle conflicts. 748 */ 749 if (mynor & CALLOUT_MASK) { 750 if (!port->active_out) { 751 error = EBUSY; 752 DLOG(DIGIDB_OPEN, (sc->dev, "port %d:" 753 " BUSY error = %d\n", pnum, error)); 754 goto out; 755 } 756 } else if (port->active_out) { 757 if (flag & O_NONBLOCK) { 758 error = EBUSY; 759 DLOG(DIGIDB_OPEN, (sc->dev, 760 "port %d: BUSY error = %d\n", pnum, error)); 761 goto out; 762 } 763 port->wopeners++; 764 error = tsleep(&port->active_out, TTIPRI | PCATCH, 765 "digibi", 0); 766 port->wopeners--; 767 if (error != 0) { 768 DLOG(DIGIDB_OPEN, (sc->dev, 769 "port %d: tsleep(digibi) error = %d\n", 770 pnum, error)); 771 goto out; 772 } 773 goto open_top; 774 } 775 if (tp->t_state & TS_XCLUDE && suser(td) != 0) { 776 error = EBUSY; 777 goto out; 778 } 779 } else { 780 /* 781 * The device isn't open, so there are no conflicts. 782 * Initialize it. Initialization is done twice in many 783 * cases: to preempt sleeping callin opens if we are callout, 784 * and to complete a callin open after DCD rises. 785 */ 786 tp->t_oproc = digistart; 787 tp->t_param = digiparam; 788 tp->t_stop = digistop; 789 tp->t_dev = dev; 790 tp->t_termios = (mynor & CALLOUT_MASK) ? 791 port->it_out : port->it_in; 792 sc->setwin(sc, 0); 793 794 bc->rout = bc->rin; /* clear input queue */ 795 bc->idata = 1; 796 bc->iempty = 1; 797 bc->ilow = 1; 798 bc->mint = port->cd | port->sc->csigs->ri; 799 bc->tin = bc->tout; 800 if (port->ialtpin) { 801 port->cd = sc->csigs->dsr; 802 port->dsr = sc->csigs->cd; 803 } else { 804 port->cd = sc->csigs->cd; 805 port->dsr = sc->csigs->dsr; 806 } 807 port->wopeners++; /* XXX required ? */ 808 error = digiparam(tp, &tp->t_termios); 809 port->wopeners--; 810 811 if (error != 0) { 812 DLOG(DIGIDB_OPEN, (sc->dev, 813 "port %d: cxpparam error = %d\n", pnum, error)); 814 goto out; 815 } 816 ttsetwater(tp); 817 818 /* handle fake and initial DCD for callout devices */ 819 820 if (bc->mstat & port->cd || mynor & CALLOUT_MASK) 821 ttyld_modem(tp, 1); 822 } 823 824 /* Wait for DCD if necessary */ 825 if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) && 826 !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) { 827 port->wopeners++; 828 error = tsleep(TSA_CARR_ON(tp), TTIPRI | PCATCH, "digidcd", 0); 829 port->wopeners--; 830 if (error != 0) { 831 DLOG(DIGIDB_OPEN, (sc->dev, 832 "port %d: tsleep(digidcd) error = %d\n", 833 pnum, error)); 834 goto out; 835 } 836 goto open_top; 837 } 838 error = ttyld_open(tp, dev); 839 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: l_open error = %d\n", 840 pnum, error)); 841 842 ttyldoptim(tp); 843 844 if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK) 845 port->active_out = TRUE; 846 847 if (tp->t_state & TS_ISOPEN) 848 sc->opencnt++; 849out: 850 splx(s); 851 852 if (!(tp->t_state & TS_ISOPEN)) 853 digihardclose(port); 854 855 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: open() returns %d\n", 856 pnum, error)); 857 858 return (error); 859} 860 861static int 862digiclose(dev_t dev, int flag, int mode, struct thread *td) 863{ 864 int mynor; 865 struct tty *tp; 866 int unit, pnum; 867 struct digi_softc *sc; 868 struct digi_p *port; 869 int s; 870 871 mynor = minor(dev); 872 unit = MINOR_TO_UNIT(mynor); 873 pnum = MINOR_TO_PORT(mynor); 874 875 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 876 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 877 878 if (mynor & (CTRL_DEV | CONTROL_MASK)) { 879 sc->opencnt--; 880 return (0); 881 } 882 883 port = sc->ports + pnum; 884 tp = port->tp; 885 886 DLOG(DIGIDB_CLOSE, (sc->dev, "port %d: closing\n", pnum)); 887 888 s = spltty(); 889 ttyld_close(tp, flag); 890 ttyldoptim(tp); 891 digihardclose(port); 892 ttyclose(tp); 893 if (--sc->opencnt == 0) 894 splx(s); 895 return (0); 896} 897 898static void 899digidtrwakeup(void *chan) 900{ 901 struct digi_p *port = chan; 902 903 port->status &= ~DIGI_DTR_OFF; 904 wakeup(&port->dtr_wait); 905 port->wopeners--; 906} 907 908static void 909digihardclose(struct digi_p *port) 910{ 911 volatile struct board_chan *bc; 912 int s; 913 914 bc = port->bc; 915 916 s = spltty(); 917 port->sc->setwin(port->sc, 0); 918 bc->idata = 0; 919 bc->iempty = 0; 920 bc->ilow = 0; 921 bc->mint = 0; 922 if ((port->tp->t_cflag & HUPCL) || 923 (!port->active_out && !(bc->mstat & port->cd) && 924 !(port->it_in.c_cflag & CLOCAL)) || 925 !(port->tp->t_state & TS_ISOPEN)) { 926 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC); 927 if (port->dtr_wait != 0) { 928 /* Schedule a wakeup of any callin devices */ 929 port->wopeners++; 930 timeout(&digidtrwakeup, port, port->dtr_wait); 931 port->status |= DIGI_DTR_OFF; 932 } 933 } 934 port->active_out = FALSE; 935 wakeup(&port->active_out); 936 wakeup(TSA_CARR_ON(port->tp)); 937 splx(s); 938} 939 940static int 941digiread(dev_t dev, struct uio *uio, int flag) 942{ 943 int mynor; 944 struct tty *tp; 945 int error, unit, pnum; 946 struct digi_softc *sc; 947 948 mynor = minor(dev); 949 if (mynor & CONTROL_MASK) 950 return (ENODEV); 951 952 unit = MINOR_TO_UNIT(mynor); 953 pnum = MINOR_TO_PORT(mynor); 954 955 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 956 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 957 tp = &sc->ttys[pnum]; 958 959 error = ttyld_read(tp, uio, flag); 960 DLOG(DIGIDB_READ, (sc->dev, "port %d: read() returns %d\n", 961 pnum, error)); 962 963 return (error); 964} 965 966static int 967digiwrite(dev_t dev, struct uio *uio, int flag) 968{ 969 int mynor; 970 struct tty *tp; 971 int error, unit, pnum; 972 struct digi_softc *sc; 973 974 mynor = minor(dev); 975 if (mynor & CONTROL_MASK) 976 return (ENODEV); 977 978 unit = MINOR_TO_UNIT(mynor); 979 pnum = MINOR_TO_PORT(mynor); 980 981 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 982 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 983 tp = &sc->ttys[pnum]; 984 985 error = ttyld_write(tp, uio, flag); 986 DLOG(DIGIDB_WRITE, (sc->dev, "port %d: write() returns %d\n", 987 pnum, error)); 988 989 return (error); 990} 991 992/* 993 * Load module "digi_<mod>.ko" and look for a symbol called digi_mod_<mod>. 994 * 995 * Populate sc->bios, sc->fep, and sc->link from this data. 996 * 997 * sc->fep.data, sc->bios.data and sc->link.data are malloc()d according 998 * to their respective sizes. 999 * 1000 * The module is unloaded when we're done. 1001 */ 1002static int 1003digi_loadmoduledata(struct digi_softc *sc) 1004{ 1005 struct digi_mod *digi_mod; 1006 linker_file_t lf; 1007 char *modfile, *sym; 1008 caddr_t symptr; 1009 int modlen, res; 1010 1011 KASSERT(sc->bios.data == NULL, ("Uninitialised BIOS variable")); 1012 KASSERT(sc->fep.data == NULL, ("Uninitialised FEP variable")); 1013 KASSERT(sc->link.data == NULL, ("Uninitialised LINK variable")); 1014 KASSERT(sc->module != NULL, ("Uninitialised module name")); 1015 1016 modlen = strlen(sc->module); 1017 modfile = malloc(modlen + 6, M_TEMP, M_WAITOK); 1018 snprintf(modfile, modlen + 6, "digi_%s", sc->module); 1019 if ((res = linker_reference_module(modfile, NULL, &lf)) != 0) { 1020 if (res == ENOENT && rootdev == NODEV) 1021 printf("%s: Failed to autoload module: No filesystem\n", 1022 modfile); 1023 else 1024 printf("%s: Failed %d to autoload module\n", modfile, 1025 res); 1026 } 1027 free(modfile, M_TEMP); 1028 if (res != 0) 1029 return (res); 1030 1031 sym = malloc(modlen + 10, M_TEMP, M_WAITOK); 1032 snprintf(sym, modlen + 10, "digi_mod_%s", sc->module); 1033 if ((symptr = linker_file_lookup_symbol(lf, sym, 0)) == NULL) 1034 printf("digi_%s.ko: Symbol `%s' not found\n", sc->module, sym); 1035 free(sym, M_TEMP); 1036 1037 digi_mod = (struct digi_mod *)symptr; 1038 if (digi_mod->dm_version != DIGI_MOD_VERSION) { 1039 printf("digi_%s.ko: Invalid version %d (need %d)\n", 1040 sc->module, digi_mod->dm_version, DIGI_MOD_VERSION); 1041 linker_file_unload(lf); 1042 return (EINVAL); 1043 } 1044 1045 sc->bios.size = digi_mod->dm_bios.size; 1046 if (sc->bios.size != 0 && digi_mod->dm_bios.data != NULL) { 1047 sc->bios.data = malloc(sc->bios.size, M_TTYS, M_WAITOK); 1048 bcopy(digi_mod->dm_bios.data, sc->bios.data, sc->bios.size); 1049 } 1050 1051 sc->fep.size = digi_mod->dm_fep.size; 1052 if (sc->fep.size != 0 && digi_mod->dm_fep.data != NULL) { 1053 sc->fep.data = malloc(sc->fep.size, M_TTYS, M_WAITOK); 1054 bcopy(digi_mod->dm_fep.data, sc->fep.data, sc->fep.size); 1055 } 1056 1057 sc->link.size = digi_mod->dm_link.size; 1058 if (sc->link.size != 0 && digi_mod->dm_link.data != NULL) { 1059 sc->link.data = malloc(sc->link.size, M_TTYS, M_WAITOK); 1060 bcopy(digi_mod->dm_link.data, sc->link.data, sc->link.size); 1061 } 1062 1063 linker_file_unload(lf); 1064 1065 return (0); 1066} 1067 1068static int 1069digiioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 1070{ 1071 int unit, pnum, mynor, error, s; 1072 struct digi_softc *sc; 1073 struct digi_p *port; 1074 struct tty *tp; 1075#if defined(COMPAT_43) 1076 int oldcmd; 1077 struct termios term; 1078#endif 1079 1080 mynor = minor(dev); 1081 unit = MINOR_TO_UNIT(mynor); 1082 pnum = MINOR_TO_PORT(mynor); 1083 1084 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1085 KASSERT(sc, ("digi%d: softc not allocated in digiioctl\n", unit)); 1086 1087 if (sc->status == DIGI_STATUS_DISABLED) 1088 return (ENXIO); 1089 1090 if (mynor & CTRL_DEV) { 1091 switch (cmd) { 1092 case DIGIIO_DEBUG: 1093#ifdef DEBUG 1094 digi_debug = *(int *)data; 1095 return (0); 1096#else 1097 device_printf(sc->dev, "DEBUG not defined\n"); 1098 return (ENXIO); 1099#endif 1100 case DIGIIO_REINIT: 1101 digi_loadmoduledata(sc); 1102 error = digi_init(sc); 1103 digi_freemoduledata(sc); 1104 return (error); 1105 1106 case DIGIIO_MODEL: 1107 *(enum digi_model *)data = sc->model; 1108 return (0); 1109 1110 case DIGIIO_IDENT: 1111 return (copyout(sc->name, *(char **)data, 1112 strlen(sc->name) + 1)); 1113 } 1114 } 1115 1116 if (pnum >= sc->numports) 1117 return (ENXIO); 1118 1119 port = sc->ports + pnum; 1120 if (!(port->status & ENABLED)) 1121 return (ENXIO); 1122 1123 tp = port->tp; 1124 1125 if (mynor & CONTROL_MASK) { 1126 struct termios *ct; 1127 1128 switch (mynor & CONTROL_MASK) { 1129 case CONTROL_INIT_STATE: 1130 ct = (mynor & CALLOUT_MASK) ? 1131 &port->it_out : &port->it_in; 1132 break; 1133 case CONTROL_LOCK_STATE: 1134 ct = (mynor & CALLOUT_MASK) ? 1135 &port->lt_out : &port->lt_in; 1136 break; 1137 default: 1138 return (ENODEV); /* /dev/nodev */ 1139 } 1140 1141 switch (cmd) { 1142 case TIOCSETA: 1143 error = suser(td); 1144 if (error != 0) 1145 return (error); 1146 *ct = *(struct termios *)data; 1147 return (0); 1148 1149 case TIOCGETA: 1150 *(struct termios *)data = *ct; 1151 return (0); 1152 1153 case TIOCGETD: 1154 *(int *)data = TTYDISC; 1155 return (0); 1156 1157 case TIOCGWINSZ: 1158 bzero(data, sizeof(struct winsize)); 1159 return (0); 1160 1161 case DIGIIO_GETALTPIN: 1162 switch (mynor & CONTROL_MASK) { 1163 case CONTROL_INIT_STATE: 1164 *(int *)data = port->ialtpin; 1165 break; 1166 1167 case CONTROL_LOCK_STATE: 1168 *(int *)data = port->laltpin; 1169 break; 1170 1171 default: 1172 panic("Confusion when re-testing minor"); 1173 return (ENODEV); 1174 } 1175 return (0); 1176 1177 case DIGIIO_SETALTPIN: 1178 switch (mynor & CONTROL_MASK) { 1179 case CONTROL_INIT_STATE: 1180 if (!port->laltpin) { 1181 port->ialtpin = !!*(int *)data; 1182 DLOG(DIGIDB_SET, (sc->dev, 1183 "port%d: initial ALTPIN %s\n", pnum, 1184 port->ialtpin ? "set" : "cleared")); 1185 } 1186 break; 1187 1188 case CONTROL_LOCK_STATE: 1189 port->laltpin = !!*(int *)data; 1190 DLOG(DIGIDB_SET, (sc->dev, 1191 "port%d: ALTPIN %slocked\n", 1192 pnum, port->laltpin ? "" : "un")); 1193 break; 1194 1195 default: 1196 panic("Confusion when re-testing minor"); 1197 return (ENODEV); 1198 } 1199 return (0); 1200 1201 default: 1202 return (ENOTTY); 1203 } 1204 } 1205 1206 switch (cmd) { 1207 case DIGIIO_GETALTPIN: 1208 *(int *)data = !!(port->dsr == sc->csigs->cd); 1209 return (0); 1210 1211 case DIGIIO_SETALTPIN: 1212 if (!port->laltpin) { 1213 if (*(int *)data) { 1214 DLOG(DIGIDB_SET, (sc->dev, 1215 "port%d: ALTPIN set\n", pnum)); 1216 port->cd = sc->csigs->dsr; 1217 port->dsr = sc->csigs->cd; 1218 } else { 1219 DLOG(DIGIDB_SET, (sc->dev, 1220 "port%d: ALTPIN cleared\n", pnum)); 1221 port->cd = sc->csigs->cd; 1222 port->dsr = sc->csigs->dsr; 1223 } 1224 } 1225 return (0); 1226 } 1227 1228 tp = port->tp; 1229#if defined(COMPAT_43) 1230 term = tp->t_termios; 1231 oldcmd = cmd; 1232 error = ttsetcompat(tp, &cmd, data, &term); 1233 if (error != 0) 1234 return (error); 1235 if (cmd != oldcmd) 1236 data = (caddr_t) & term; 1237#endif 1238 if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { 1239 int cc; 1240 struct termios *dt; 1241 struct termios *lt; 1242 1243 dt = (struct termios *)data; 1244 lt = (mynor & CALLOUT_MASK) ? &port->lt_out : &port->lt_in; 1245 1246 dt->c_iflag = 1247 (tp->t_iflag & lt->c_iflag) | (dt->c_iflag & ~lt->c_iflag); 1248 dt->c_oflag = 1249 (tp->t_oflag & lt->c_oflag) | (dt->c_oflag & ~lt->c_oflag); 1250 dt->c_cflag = 1251 (tp->t_cflag & lt->c_cflag) | (dt->c_cflag & ~lt->c_cflag); 1252 dt->c_lflag = 1253 (tp->t_lflag & lt->c_lflag) | (dt->c_lflag & ~lt->c_lflag); 1254 port->c_iflag = dt->c_iflag & (IXOFF | IXON | IXANY); 1255 dt->c_iflag &= ~(IXOFF | IXON | IXANY); 1256 for (cc = 0; cc < NCCS; ++cc) 1257 if (lt->c_cc[cc] != 0) 1258 dt->c_cc[cc] = tp->t_cc[cc]; 1259 if (lt->c_ispeed != 0) 1260 dt->c_ispeed = tp->t_ispeed; 1261 if (lt->c_ospeed != 0) 1262 dt->c_ospeed = tp->t_ospeed; 1263 } 1264 error = ttyioctl(dev, cmd, data, flag, td); 1265 if (error == 0 && cmd == TIOCGETA) 1266 ((struct termios *)data)->c_iflag |= port->c_iflag; 1267 ttyldoptim(tp); 1268 if (error >= 0 && error != ENOTTY) 1269 return (error); 1270 s = spltty(); 1271 sc->setwin(sc, 0); 1272 switch (cmd) { 1273 case DIGIIO_RING: 1274 port->send_ring = *(u_char *)data; 1275 break; 1276 case TIOCSBRK: 1277 /* 1278 * now it sends 400 millisecond break because I don't know 1279 * how to send an infinite break 1280 */ 1281 fepcmd_w(port, SENDBREAK, 400, 10); 1282 break; 1283 case TIOCCBRK: 1284 /* now it's empty */ 1285 break; 1286 case TIOCSDTR: 1287 digimctl(port, TIOCM_DTR, DMBIS); 1288 break; 1289 case TIOCCDTR: 1290 digimctl(port, TIOCM_DTR, DMBIC); 1291 break; 1292 case TIOCMSET: 1293 digimctl(port, *(int *)data, DMSET); 1294 break; 1295 case TIOCMBIS: 1296 digimctl(port, *(int *)data, DMBIS); 1297 break; 1298 case TIOCMBIC: 1299 digimctl(port, *(int *)data, DMBIC); 1300 break; 1301 case TIOCMGET: 1302 *(int *)data = digimctl(port, 0, DMGET); 1303 break; 1304 case TIOCMSDTRWAIT: 1305 error = suser(td); 1306 if (error != 0) { 1307 splx(s); 1308 return (error); 1309 } 1310 port->dtr_wait = *(int *)data *hz / 100; 1311 1312 break; 1313 case TIOCMGDTRWAIT: 1314 *(int *)data = port->dtr_wait * 100 / hz; 1315 break; 1316#ifdef DIGI_INTERRUPT 1317 case TIOCTIMESTAMP: 1318 *(struct timeval *)data = sc->intr_timestamp; 1319 1320 break; 1321#endif 1322 default: 1323 splx(s); 1324 return (ENOTTY); 1325 } 1326 splx(s); 1327 return (0); 1328} 1329 1330static int 1331digiparam(struct tty *tp, struct termios *t) 1332{ 1333 int mynor; 1334 int unit; 1335 int pnum; 1336 struct digi_softc *sc; 1337 struct digi_p *port; 1338 int cflag; 1339 int iflag; 1340 int hflow; 1341 int s; 1342 int window; 1343 1344 mynor = minor(tp->t_dev); 1345 unit = MINOR_TO_UNIT(mynor); 1346 pnum = MINOR_TO_PORT(mynor); 1347 1348 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1349 KASSERT(sc, ("digi%d: softc not allocated in digiparam\n", unit)); 1350 1351 port = &sc->ports[pnum]; 1352 1353 DLOG(DIGIDB_SET, (sc->dev, "port%d: setting parameters\n", pnum)); 1354 1355 if (t->c_ispeed == 0) 1356 t->c_ispeed = t->c_ospeed; 1357 1358 cflag = ttspeedtab(t->c_ospeed, digispeedtab); 1359 1360 if (cflag < 0 || (cflag > 0 && t->c_ispeed != t->c_ospeed)) 1361 return (EINVAL); 1362 1363 s = splclock(); 1364 1365 window = sc->window; 1366 sc->setwin(sc, 0); 1367 1368 if (cflag == 0) { /* hangup */ 1369 DLOG(DIGIDB_SET, (sc->dev, "port%d: hangup\n", pnum)); 1370 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC); 1371 } else { 1372 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIS); 1373 1374 DLOG(DIGIDB_SET, (sc->dev, "port%d: CBAUD = %d\n", pnum, 1375 cflag)); 1376 1377#if 0 1378 /* convert flags to sysV-style values */ 1379 if (t->c_cflag & PARODD) 1380 cflag |= 0x0200; 1381 if (t->c_cflag & PARENB) 1382 cflag |= 0x0100; 1383 if (t->c_cflag & CSTOPB) 1384 cflag |= 0x0080; 1385#else 1386 /* convert flags to sysV-style values */ 1387 if (t->c_cflag & PARODD) 1388 cflag |= FEP_PARODD; 1389 if (t->c_cflag & PARENB) 1390 cflag |= FEP_PARENB; 1391 if (t->c_cflag & CSTOPB) 1392 cflag |= FEP_CSTOPB; 1393 if (t->c_cflag & CLOCAL) 1394 cflag |= FEP_CLOCAL; 1395#endif 1396 1397 cflag |= (t->c_cflag & CSIZE) >> 4; 1398 DLOG(DIGIDB_SET, (sc->dev, "port%d: CFLAG = 0x%x\n", pnum, 1399 cflag)); 1400 fepcmd_w(port, SETCFLAGS, (unsigned)cflag, 0); 1401 } 1402 1403 iflag = 1404 t->c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK | ISTRIP); 1405 if (port->c_iflag & IXON) 1406 iflag |= 0x400; 1407 if (port->c_iflag & IXANY) 1408 iflag |= 0x800; 1409 if (port->c_iflag & IXOFF) 1410 iflag |= 0x1000; 1411 1412 DLOG(DIGIDB_SET, (sc->dev, "port%d: set iflag = 0x%x\n", pnum, iflag)); 1413 fepcmd_w(port, SETIFLAGS, (unsigned)iflag, 0); 1414 1415 hflow = 0; 1416 if (t->c_cflag & CDTR_IFLOW) 1417 hflow |= sc->csigs->dtr; 1418 if (t->c_cflag & CRTS_IFLOW) 1419 hflow |= sc->csigs->rts; 1420 if (t->c_cflag & CCTS_OFLOW) 1421 hflow |= sc->csigs->cts; 1422 if (t->c_cflag & CDSR_OFLOW) 1423 hflow |= port->dsr; 1424 if (t->c_cflag & CCAR_OFLOW) 1425 hflow |= port->cd; 1426 1427 DLOG(DIGIDB_SET, (sc->dev, "port%d: set hflow = 0x%x\n", pnum, hflow)); 1428 fepcmd_w(port, SETHFLOW, 0xff00 | (unsigned)hflow, 0); 1429 1430 DLOG(DIGIDB_SET, (sc->dev, "port%d: set startc(0x%x), stopc(0x%x)\n", 1431 pnum, t->c_cc[VSTART], t->c_cc[VSTOP])); 1432 fepcmd_b(port, SONOFFC, t->c_cc[VSTART], t->c_cc[VSTOP], 0); 1433 1434 if (sc->window != 0) 1435 sc->towin(sc, 0); 1436 if (window != 0) 1437 sc->towin(sc, window); 1438 splx(s); 1439 1440 return (0); 1441} 1442 1443static void 1444digi_intr(void *vp) 1445{ 1446 struct digi_p *port; 1447 char *cxcon; 1448 struct digi_softc *sc; 1449 int ehead, etail; 1450 volatile struct board_chan *bc; 1451 struct tty *tp; 1452 int head, tail; 1453 int wrapmask; 1454 int size, window; 1455 struct event { 1456 u_char pnum; 1457 u_char event; 1458 u_char mstat; 1459 u_char lstat; 1460 } event; 1461 1462 sc = vp; 1463 1464 if (sc->status != DIGI_STATUS_ENABLED) { 1465 DLOG(DIGIDB_IRQ, (sc->dev, "interrupt on disabled board !\n")); 1466 return; 1467 } 1468 1469#ifdef DIGI_INTERRUPT 1470 microtime(&sc->intr_timestamp); 1471#endif 1472 1473 window = sc->window; 1474 sc->setwin(sc, 0); 1475 1476 if (sc->model >= PCXEM && W(sc->vmem + 0xd00)) { 1477 struct con_bios *con = con_bios_list; 1478 register u_char *ptr; 1479 1480 ptr = sc->vmem + W(sc->vmem + 0xd00); 1481 while (con) { 1482 if (ptr[1] && W(ptr + 2) == W(con->bios + 2)) 1483 /* Not first block -- exact match */ 1484 break; 1485 1486 if (W(ptr + 4) >= W(con->bios + 4) && 1487 W(ptr + 4) <= W(con->bios + 6)) 1488 /* Initial search concetrator BIOS */ 1489 break; 1490 } 1491 1492 if (con == NULL) { 1493 log(LOG_ERR, "digi%d: wanted bios LREV = 0x%04x" 1494 " not found!\n", sc->res.unit, W(ptr + 4)); 1495 W(ptr + 10) = 0; 1496 W(sc->vmem + 0xd00) = 0; 1497 goto eoi; 1498 } 1499 cxcon = con->bios; 1500 W(ptr + 4) = W(cxcon + 4); 1501 W(ptr + 6) = W(cxcon + 6); 1502 if (ptr[1] == 0) 1503 W(ptr + 2) = W(cxcon + 2); 1504 W(ptr + 8) = (ptr[1] << 6) + W(cxcon + 8); 1505 size = W(cxcon + 10) - (ptr[1] << 10); 1506 if (size <= 0) { 1507 W(ptr + 8) = W(cxcon + 8); 1508 W(ptr + 10) = 0; 1509 } else { 1510 if (size > 1024) 1511 size = 1024; 1512 W(ptr + 10) = size; 1513 bcopy(cxcon + (ptr[1] << 10), ptr + 12, size); 1514 } 1515 W(sc->vmem + 0xd00) = 0; 1516 goto eoi; 1517 } 1518 1519 ehead = sc->gdata->ein; 1520 etail = sc->gdata->eout; 1521 if (ehead == etail) { 1522#ifdef DEBUG 1523 sc->intr_count++; 1524 if (sc->intr_count % 6000 == 0) { 1525 DLOG(DIGIDB_IRQ, (sc->dev, 1526 "6000 useless polls %x %x\n", ehead, etail)); 1527 sc->intr_count = 0; 1528 } 1529#endif 1530 goto eoi; 1531 } 1532 while (ehead != etail) { 1533 event = *(volatile struct event *)(sc->memevent + etail); 1534 1535 etail = (etail + 4) & sc->gdata->imax; 1536 1537 if (event.pnum >= sc->numports) { 1538 log(LOG_ERR, "digi%d: port %d: got event" 1539 " on nonexisting port\n", sc->res.unit, 1540 event.pnum); 1541 continue; 1542 } 1543 port = &sc->ports[event.pnum]; 1544 bc = port->bc; 1545 tp = port->tp; 1546 1547 if (!(tp->t_state & TS_ISOPEN) && !port->wopeners) { 1548 DLOG(DIGIDB_IRQ, (sc->dev, 1549 "port %d: event 0x%x on closed port\n", 1550 event.pnum, event.event)); 1551 bc->rout = bc->rin; 1552 bc->idata = 0; 1553 bc->iempty = 0; 1554 bc->ilow = 0; 1555 bc->mint = 0; 1556 continue; 1557 } 1558 if (event.event & ~ALL_IND) 1559 log(LOG_ERR, "digi%d: port%d: ? event 0x%x mstat 0x%x" 1560 " lstat 0x%x\n", sc->res.unit, event.pnum, 1561 event.event, event.mstat, event.lstat); 1562 1563 if (event.event & DATA_IND) { 1564 DLOG(DIGIDB_IRQ, (sc->dev, "port %d: DATA_IND\n", 1565 event.pnum)); 1566 wrapmask = port->rxbufsize - 1; 1567 head = bc->rin; 1568 tail = bc->rout; 1569 1570 size = 0; 1571 if (!(tp->t_state & TS_ISOPEN)) { 1572 bc->rout = head; 1573 goto end_of_data; 1574 } 1575 while (head != tail) { 1576 int top; 1577 1578 DLOG(DIGIDB_INT, (sc->dev, 1579 "port %d: p rx head = %d tail = %d\n", 1580 event.pnum, head, tail)); 1581 top = (head > tail) ? head : wrapmask + 1; 1582 sc->towin(sc, port->rxwin); 1583 size = top - tail; 1584 if (tp->t_state & TS_CAN_BYPASS_L_RINT) { 1585 size = b_to_q((char *)port->rxbuf + 1586 tail, size, &tp->t_rawq); 1587 tail = top - size; 1588 ttwakeup(tp); 1589 } else for (; tail < top;) { 1590 ttyld_rint(tp, port->rxbuf[tail]); 1591 sc->towin(sc, port->rxwin); 1592 size--; 1593 tail++; 1594 if (tp->t_state & TS_TBLOCK) 1595 break; 1596 } 1597 tail &= wrapmask; 1598 sc->setwin(sc, 0); 1599 bc->rout = tail; 1600 head = bc->rin; 1601 if (size) 1602 break; 1603 } 1604 1605 if (bc->orun) { 1606 CE_RECORD(port, CE_OVERRUN); 1607 log(LOG_ERR, "digi%d: port%d: %s\n", 1608 sc->res.unit, event.pnum, 1609 digi_errortxt(CE_OVERRUN)); 1610 bc->orun = 0; 1611 } 1612end_of_data: 1613 if (size) { 1614 tp->t_state |= TS_TBLOCK; 1615 port->status |= PAUSE_RX; 1616 DLOG(DIGIDB_RX, (sc->dev, "port %d: pause RX\n", 1617 event.pnum)); 1618 } else { 1619 bc->idata = 1; 1620 } 1621 } 1622 1623 if (event.event & MODEMCHG_IND) { 1624 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: MODEMCHG_IND\n", 1625 event.pnum)); 1626 1627 if ((event.mstat ^ event.lstat) & port->cd) { 1628 sc->hidewin(sc); 1629 ttyld_modem(tp, event.mstat & port->cd); 1630 sc->setwin(sc, 0); 1631 wakeup(TSA_CARR_ON(tp)); 1632 } 1633 1634 if (event.mstat & sc->csigs->ri) { 1635 DLOG(DIGIDB_RI, (sc->dev, "port %d: RING\n", 1636 event.pnum)); 1637 if (port->send_ring) { 1638 ttyld_rint(tp, 'R'); 1639 ttyld_rint(tp, 'I'); 1640 ttyld_rint(tp, 'N'); 1641 ttyld_rint(tp, 'G'); 1642 ttyld_rint(tp, '\r'); 1643 ttyld_rint(tp, '\n'); 1644 } 1645 } 1646 } 1647 if (event.event & BREAK_IND) { 1648 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n", 1649 event.pnum)); 1650 ttyld_rint(tp, TTY_BI); 1651 } 1652 if (event.event & (LOWTX_IND | EMPTYTX_IND)) { 1653 DLOG(DIGIDB_IRQ, (sc->dev, "port %d:%s%s\n", 1654 event.pnum, 1655 event.event & LOWTX_IND ? " LOWTX" : "", 1656 event.event & EMPTYTX_IND ? " EMPTYTX" : "")); 1657 ttyld_start(tp); 1658 } 1659 } 1660 sc->gdata->eout = etail; 1661eoi: 1662 if (sc->window != 0) 1663 sc->towin(sc, 0); 1664 if (window != 0) 1665 sc->towin(sc, window); 1666} 1667 1668static void 1669digistart(struct tty *tp) 1670{ 1671 int unit; 1672 int pnum; 1673 struct digi_p *port; 1674 struct digi_softc *sc; 1675 volatile struct board_chan *bc; 1676 int head, tail; 1677 int size, ocount, totcnt = 0; 1678 int s; 1679 int wmask; 1680 1681 unit = MINOR_TO_UNIT(minor(tp->t_dev)); 1682 pnum = MINOR_TO_PORT(minor(tp->t_dev)); 1683 1684 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1685 KASSERT(sc, ("digi%d: softc not allocated in digistart\n", unit)); 1686 1687 port = &sc->ports[pnum]; 1688 bc = port->bc; 1689 1690 wmask = port->txbufsize - 1; 1691 1692 s = spltty(); 1693 port->lcc = tp->t_outq.c_cc; 1694 sc->setwin(sc, 0); 1695 if (!(tp->t_state & TS_TBLOCK)) { 1696 if (port->status & PAUSE_RX) { 1697 DLOG(DIGIDB_RX, (sc->dev, "port %d: resume RX\n", 1698 pnum)); 1699 /* 1700 * CAREFUL - braces are needed here if the DLOG is 1701 * optimised out! 1702 */ 1703 } 1704 port->status &= ~PAUSE_RX; 1705 bc->idata = 1; 1706 } 1707 if (!(tp->t_state & TS_TTSTOP) && port->status & PAUSE_TX) { 1708 DLOG(DIGIDB_TX, (sc->dev, "port %d: resume TX\n", pnum)); 1709 port->status &= ~PAUSE_TX; 1710 fepcmd_w(port, RESUMETX, 0, 10); 1711 } 1712 if (tp->t_outq.c_cc == 0) 1713 tp->t_state &= ~TS_BUSY; 1714 else 1715 tp->t_state |= TS_BUSY; 1716 1717 head = bc->tin; 1718 while (tp->t_outq.c_cc != 0) { 1719 tail = bc->tout; 1720 DLOG(DIGIDB_INT, (sc->dev, "port%d: s tx head = %d tail = %d\n", 1721 pnum, head, tail)); 1722 1723 if (head < tail) 1724 size = tail - head - 1; 1725 else { 1726 size = port->txbufsize - head; 1727 if (tail == 0) 1728 size--; 1729 } 1730 1731 if (size == 0) 1732 break; 1733 sc->towin(sc, port->txwin); 1734 ocount = q_to_b(&tp->t_outq, port->txbuf + head, size); 1735 totcnt += ocount; 1736 head += ocount; 1737 head &= wmask; 1738 sc->setwin(sc, 0); 1739 bc->tin = head; 1740 bc->iempty = 1; 1741 bc->ilow = 1; 1742 } 1743 port->lostcc = tp->t_outq.c_cc; 1744 tail = bc->tout; 1745 if (head < tail) 1746 size = port->txbufsize - tail + head; 1747 else 1748 size = head - tail; 1749 1750 port->lbuf = size; 1751 DLOG(DIGIDB_INT, (sc->dev, "port%d: s total cnt = %d\n", pnum, totcnt)); 1752 ttwwakeup(tp); 1753 splx(s); 1754} 1755 1756static void 1757digistop(struct tty *tp, int rw) 1758{ 1759 struct digi_softc *sc; 1760 int unit; 1761 int pnum; 1762 struct digi_p *port; 1763 1764 unit = MINOR_TO_UNIT(minor(tp->t_dev)); 1765 pnum = MINOR_TO_PORT(minor(tp->t_dev)); 1766 1767 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1768 KASSERT(sc, ("digi%d: softc not allocated in digistop\n", unit)); 1769 port = sc->ports + pnum; 1770 1771 DLOG(DIGIDB_TX, (sc->dev, "port %d: pause TX\n", pnum)); 1772 port->status |= PAUSE_TX; 1773 fepcmd_w(port, PAUSETX, 0, 10); 1774} 1775 1776static void 1777fepcmd(struct digi_p *port, int cmd, int op1, int ncmds) 1778{ 1779 u_char *mem; 1780 unsigned tail, head; 1781 int count, n; 1782 1783 mem = port->sc->memcmd; 1784 1785 port->sc->setwin(port->sc, 0); 1786 1787 head = port->sc->gdata->cin; 1788 mem[head + 0] = cmd; 1789 mem[head + 1] = port->pnum; 1790 *(u_short *)(mem + head + 2) = op1; 1791 1792 head = (head + 4) & port->sc->gdata->cmax; 1793 port->sc->gdata->cin = head; 1794 1795 for (count = FEPTIMEOUT; count > 0; count--) { 1796 head = port->sc->gdata->cin; 1797 tail = port->sc->gdata->cout; 1798 n = (head - tail) & port->sc->gdata->cmax; 1799 1800 if (n <= ncmds * sizeof(short) * 4) 1801 break; 1802 } 1803 if (count == 0) 1804 log(LOG_ERR, "digi%d: port%d: timeout on FEP command\n", 1805 port->sc->res.unit, port->pnum); 1806} 1807 1808const char * 1809digi_errortxt(int id) 1810{ 1811 static const char *error_desc[] = { 1812 "silo overflow", 1813 "interrupt-level buffer overflow", 1814 "tty-level buffer overflow", 1815 }; 1816 1817 KASSERT(id >= 0 && id < sizeof(error_desc) / sizeof(error_desc[0]), 1818 ("Unexpected digi error id %d\n", id)); 1819 1820 return (error_desc[id]); 1821} 1822 1823int 1824digi_attach(struct digi_softc *sc) 1825{ 1826 sc->res.ctldev = make_dev(&digi_sw, 1827 (sc->res.unit << 16) | CTRL_DEV, UID_ROOT, GID_WHEEL, 1828 0600, "digi%r.ctl", sc->res.unit); 1829 1830 digi_loadmoduledata(sc); 1831 digi_init(sc); 1832 digi_freemoduledata(sc); 1833 1834 return (0); 1835} 1836 1837static int 1838digi_inuse(struct digi_softc *sc) 1839{ 1840 int i; 1841 1842 for (i = 0; i < sc->numports; i++) 1843 if (sc->ttys[i].t_state & TS_ISOPEN) { 1844 DLOG(DIGIDB_INIT, (sc->dev, "port%d: busy\n", i)); 1845 return (1); 1846 } else if (sc->ports[i].wopeners || sc->ports[i].opencnt) { 1847 DLOG(DIGIDB_INIT, (sc->dev, "port%d: blocked in open\n", 1848 i)); 1849 return (1); 1850 } 1851 return (0); 1852} 1853 1854static void 1855digi_free_state(struct digi_softc *sc) 1856{ 1857 int d, i; 1858 1859 /* Blow it all away */ 1860 1861 for (i = 0; i < sc->numports; i++) 1862 for (d = 0; d < 6; d++) 1863 destroy_dev(sc->ports[i].dev[d]); 1864 1865 untimeout(digi_poll, sc, sc->callout); 1866 callout_handle_init(&sc->callout); 1867 untimeout(digi_int_test, sc, sc->inttest); 1868 callout_handle_init(&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 free(sc->ports, M_TTYS); 1882 sc->ports = NULL; 1883 free(sc->ttys, M_TTYS); 1884 sc->ttys = NULL; 1885 sc->numports = 0; 1886 } 1887 1888 sc->status = DIGI_STATUS_NOTINIT; 1889} 1890 1891int 1892digi_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 1921 return (0); 1922} 1923 1924int 1925digi_shutdown(device_t dev) 1926{ 1927 return (0); 1928} 1929 1930MODULE_VERSION(digi, 1); 1931