digi.c revision 132806
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 132806 2004-07-28 21:06:13Z 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/serial.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 void digibreak(struct tty *tp, int brk); 83static int digimodem(struct tty *tp, int sigon, int sigoff); 84static void digi_poll(void *ptr); 85static void digi_freemoduledata(struct digi_softc *); 86static void fepcmd(struct digi_p *port, int cmd, int op, int ncmds); 87static void digistart(struct tty *tp); 88static int digiparam(struct tty *tp, struct termios *t); 89static void digihardclose(struct digi_p *port); 90static void digi_intr(void *); 91static int digi_init(struct digi_softc *_sc); 92static int digi_loadmoduledata(struct digi_softc *); 93static int digi_inuse(struct digi_softc *); 94static void digi_free_state(struct digi_softc *); 95 96#define fepcmd_b(port, cmd, op1, op2, ncmds) \ 97 fepcmd(port, cmd, (op2 << 8) | op1, ncmds) 98#define fepcmd_w fepcmd 99 100 101static speed_t digidefaultrate = TTYDEF_SPEED; 102 103struct con_bios { 104 struct con_bios *next; 105 u_char *bios; 106 size_t size; 107}; 108 109static struct con_bios *con_bios_list; 110devclass_t digi_devclass; 111static char driver_name[] = "digi"; 112unsigned digi_debug = 0; 113 114static struct speedtab digispeedtab[] = { 115 { 0, 0}, /* old (sysV-like) Bx codes */ 116 { 50, 1}, 117 { 75, 2}, 118 { 110, 3}, 119 { 134, 4}, 120 { 150, 5}, 121 { 200, 6}, 122 { 300, 7}, 123 { 600, 8}, 124 { 1200, 9}, 125 { 1800, 10}, 126 { 2400, 11}, 127 { 4800, 12}, 128 { 9600, 13}, 129 { 19200, 14}, 130 { 38400, 15}, 131 { 57600, (02000 | 1)}, 132 { 76800, (02000 | 2)}, 133 { 115200, (02000 | 3)}, 134 { 230400, (02000 | 6)}, 135 { -1, -1} 136}; 137 138const struct digi_control_signals digi_xixe_signals = { 139 0x02, 0x08, 0x10, 0x20, 0x40, 0x80 140}; 141 142const struct digi_control_signals digi_normal_signals = { 143 0x02, 0x80, 0x20, 0x10, 0x40, 0x01 144}; 145 146static struct cdevsw digi_sw = { 147 .d_version = D_VERSION, 148 .d_open = digiopen, 149 .d_close = digiclose, 150 .d_read = digiread, 151 .d_write = digiwrite, 152 .d_ioctl = digiioctl, 153 .d_name = driver_name, 154 .d_flags = D_TTY | D_NEEDGIANT, 155}; 156 157static void 158digi_poll(void *ptr) 159{ 160 struct digi_softc *sc; 161 162 sc = (struct digi_softc *)ptr; 163 callout_handle_init(&sc->callout); 164 digi_intr(sc); 165 sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); 166} 167 168static void 169digi_int_test(void *v) 170{ 171 struct digi_softc *sc = v; 172 173 callout_handle_init(&sc->inttest); 174#ifdef DIGI_INTERRUPT 175 if (sc->intr_timestamp.tv_sec || sc->intr_timestamp.tv_usec) { 176 /* interrupt OK! */ 177 return; 178 } 179 log(LOG_ERR, "digi%d: Interrupt didn't work, use polled mode\n", unit); 180#endif 181 sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); 182} 183 184static void 185digi_freemoduledata(struct digi_softc *sc) 186{ 187 if (sc->fep.data != NULL) { 188 free(sc->fep.data, M_TTYS); 189 sc->fep.data = NULL; 190 } 191 if (sc->link.data != NULL) { 192 free(sc->link.data, M_TTYS); 193 sc->link.data = NULL; 194 } 195 if (sc->bios.data != NULL) { 196 free(sc->bios.data, M_TTYS); 197 sc->bios.data = NULL; 198 } 199} 200 201static int 202digi_bcopy(const void *vfrom, void *vto, size_t sz) 203{ 204 volatile const char *from = (volatile const char *)vfrom; 205 volatile char *to = (volatile char *)vto; 206 size_t i; 207 208 for (i = 0; i < sz; i++) 209 *to++ = *from++; 210 211 from = (const volatile char *)vfrom; 212 to = (volatile char *)vto; 213 for (i = 0; i < sz; i++) 214 if (*to++ != *from++) 215 return (0); 216 return (1); 217} 218 219void 220digi_delay(struct digi_softc *sc, const char *txt, u_long timo) 221{ 222 if (cold) 223 DELAY(timo * 1000000 / hz); 224 else 225 tsleep(sc, PUSER | PCATCH, txt, timo); 226} 227 228static int 229digi_init(struct digi_softc *sc) 230{ 231 int i, cnt, resp; 232 u_char *ptr; 233 int lowwater; 234 struct digi_p *port; 235 volatile struct board_chan *bc; 236 237 ptr = NULL; 238 239 if (sc->status == DIGI_STATUS_DISABLED) { 240 log(LOG_ERR, "digi%d: Cannot init a disabled card\n", 241 sc->res.unit); 242 return (EIO); 243 } 244 if (sc->bios.data == NULL) { 245 log(LOG_ERR, "digi%d: Cannot init without BIOS\n", 246 sc->res.unit); 247 return (EIO); 248 } 249#if 0 250 if (sc->link.data == NULL && sc->model >= PCCX) { 251 log(LOG_ERR, "digi%d: Cannot init without link info\n", 252 sc->res.unit); 253 return (EIO); 254 } 255#endif 256 if (sc->fep.data == NULL) { 257 log(LOG_ERR, "digi%d: Cannot init without fep code\n", 258 sc->res.unit); 259 return (EIO); 260 } 261 sc->status = DIGI_STATUS_NOTINIT; 262 263 if (sc->numports) { 264 /* 265 * We're re-initialising - maybe because someone's attached 266 * another port module. For now, we just re-initialise 267 * everything. 268 */ 269 if (digi_inuse(sc)) 270 return (EBUSY); 271 272 digi_free_state(sc); 273 } 274 275 ptr = sc->setwin(sc, MISCGLOBAL); 276 for (i = 0; i < 16; i += 2) 277 vW(ptr + i) = 0; 278 279 switch (sc->model) { 280 case PCXEVE: 281 outb(sc->wport, 0xff); /* window 7 */ 282 ptr = sc->vmem + (BIOSCODE & 0x1fff); 283 284 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { 285 device_printf(sc->dev, "BIOS upload failed\n"); 286 return (EIO); 287 } 288 289 outb(sc->port, FEPCLR); 290 break; 291 292 case PCXE: 293 case PCXI: 294 case PCCX: 295 ptr = sc->setwin(sc, BIOSCODE + ((0xf000 - sc->mem_seg) << 4)); 296 if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { 297 device_printf(sc->dev, "BIOS upload failed\n"); 298 return (EIO); 299 } 300 break; 301 302 case PCXEM: 303 case PCIEPCX: 304 case PCIXR: 305 if (sc->pcibus) 306 PCIPORT = FEPRST; 307 else 308 outb(sc->port, FEPRST | FEPMEM); 309 310 for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & 311 FEPMASK) != FEPRST; i++) { 312 if (i > hz) { 313 log(LOG_ERR, "digi%d: %s init reset failed\n", 314 sc->res.unit, sc->name); 315 return (EIO); 316 } 317 digi_delay(sc, "digiinit0", 5); 318 } 319 DLOG(DIGIDB_INIT, (sc->dev, "Got init reset after %d us\n", i)); 320 321 /* Now upload the BIOS */ 322 cnt = (sc->bios.size < sc->win_size - BIOSOFFSET) ? 323 sc->bios.size : sc->win_size - BIOSOFFSET; 324 325 ptr = sc->setwin(sc, BIOSOFFSET); 326 if (!digi_bcopy(sc->bios.data, ptr, cnt)) { 327 device_printf(sc->dev, "BIOS upload (1) failed\n"); 328 return (EIO); 329 } 330 331 if (cnt != sc->bios.size) { 332 /* and the second part */ 333 ptr = sc->setwin(sc, sc->win_size); 334 if (!digi_bcopy(sc->bios.data + cnt, ptr, 335 sc->bios.size - cnt)) { 336 device_printf(sc->dev, "BIOS upload failed\n"); 337 return (EIO); 338 } 339 } 340 341 ptr = sc->setwin(sc, 0); 342 vW(ptr + 0) = 0x0401; 343 vW(ptr + 2) = 0x0bf0; 344 vW(ptr + 4) = 0x0000; 345 vW(ptr + 6) = 0x0000; 346 347 break; 348 } 349 350 DLOG(DIGIDB_INIT, (sc->dev, "BIOS uploaded\n")); 351 352 ptr = sc->setwin(sc, MISCGLOBAL); 353 W(ptr) = 0; 354 355 if (sc->pcibus) { 356 PCIPORT = FEPCLR; 357 resp = FEPRST; 358 } else if (sc->model == PCXEVE) { 359 outb(sc->port, FEPCLR); 360 resp = FEPRST; 361 } else { 362 outb(sc->port, FEPCLR | FEPMEM); 363 resp = FEPRST | FEPMEM; 364 } 365 366 for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & FEPMASK) 367 == resp; i++) { 368 if (i > hz) { 369 log(LOG_ERR, "digi%d: BIOS start failed\n", 370 sc->res.unit); 371 return (EIO); 372 } 373 digi_delay(sc, "digibios0", 5); 374 } 375 376 DLOG(DIGIDB_INIT, (sc->dev, "BIOS started after %d us\n", i)); 377 378 for (i = 0; vW(ptr) != *(u_short *)"GD"; i++) { 379 if (i > 2*hz) { 380 log(LOG_ERR, "digi%d: BIOS boot failed " 381 "(0x%02x != 0x%02x)\n", 382 sc->res.unit, vW(ptr), *(u_short *)"GD"); 383 return (EIO); 384 } 385 digi_delay(sc, "digibios1", 5); 386 } 387 388 DLOG(DIGIDB_INIT, (sc->dev, "BIOS booted after %d iterations\n", i)); 389 390 if (sc->link.data != NULL) { 391 DLOG(DIGIDB_INIT, (sc->dev, "Loading link data\n")); 392 ptr = sc->setwin(sc, 0xcd0); 393 digi_bcopy(sc->link.data, ptr, 21); /* XXX 21 ? */ 394 } 395 396 /* load FEP/OS */ 397 398 switch (sc->model) { 399 case PCXE: 400 case PCXEVE: 401 case PCXI: 402 ptr = sc->setwin(sc, sc->model == PCXI ? 0x2000 : 0x0); 403 digi_bcopy(sc->fep.data, ptr, sc->fep.size); 404 405 /* A BIOS request to move our data to 0x2000 */ 406 ptr = sc->setwin(sc, MBOX); 407 vW(ptr + 0) = 2; 408 vW(ptr + 2) = sc->mem_seg + FEPCODESEG; 409 vW(ptr + 4) = 0; 410 vW(ptr + 6) = FEPCODESEG; 411 vW(ptr + 8) = 0; 412 vW(ptr + 10) = sc->fep.size; 413 414 /* Run the BIOS request */ 415 outb(sc->port, FEPREQ | FEPMEM); 416 outb(sc->port, FEPCLR | FEPMEM); 417 418 for (i = 0; W(ptr); i++) { 419 if (i > hz) { 420 log(LOG_ERR, "digi%d: FEP/OS move failed\n", 421 sc->res.unit); 422 sc->hidewin(sc); 423 return (EIO); 424 } 425 digi_delay(sc, "digifep0", 5); 426 } 427 DLOG(DIGIDB_INIT, 428 (sc->dev, "FEP/OS moved after %d iterations\n", i)); 429 430 /* Clear the confirm word */ 431 ptr = sc->setwin(sc, FEPSTAT); 432 vW(ptr + 0) = 0; 433 434 /* A BIOS request to execute the FEP/OS */ 435 ptr = sc->setwin(sc, MBOX); 436 vW(ptr + 0) = 0x01; 437 vW(ptr + 2) = FEPCODESEG; 438 vW(ptr + 4) = 0x04; 439 440 /* Run the BIOS request */ 441 outb(sc->port, FEPREQ); 442 outb(sc->port, FEPCLR); 443 444 ptr = sc->setwin(sc, FEPSTAT); 445 446 break; 447 448 case PCXEM: 449 case PCIEPCX: 450 case PCIXR: 451 DLOG(DIGIDB_INIT, (sc->dev, "Loading FEP/OS\n")); 452 453 cnt = (sc->fep.size < sc->win_size - BIOSOFFSET) ? 454 sc->fep.size : sc->win_size - BIOSOFFSET; 455 456 ptr = sc->setwin(sc, BIOSOFFSET); 457 digi_bcopy(sc->fep.data, ptr, cnt); 458 459 if (cnt != sc->fep.size) { 460 ptr = sc->setwin(sc, BIOSOFFSET + cnt); 461 digi_bcopy(sc->fep.data + cnt, ptr, 462 sc->fep.size - cnt); 463 } 464 465 DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS loaded\n")); 466 467 ptr = sc->setwin(sc, 0xc30); 468 W(ptr + 4) = 0x1004; 469 W(ptr + 6) = 0xbfc0; 470 W(ptr + 0) = 0x03; 471 W(ptr + 2) = 0x00; 472 473 /* Clear the confirm word */ 474 ptr = sc->setwin(sc, FEPSTAT); 475 W(ptr + 0) = 0; 476 477 if (sc->port) 478 outb(sc->port, 0); /* XXX necessary ? */ 479 480 break; 481 482 case PCCX: 483 ptr = sc->setwin(sc, 0xd000); 484 digi_bcopy(sc->fep.data, ptr, sc->fep.size); 485 486 /* A BIOS request to execute the FEP/OS */ 487 ptr = sc->setwin(sc, 0xc40); 488 W(ptr + 0) = 1; 489 W(ptr + 2) = FEPCODE >> 4; 490 W(ptr + 4) = 4; 491 492 /* Clear the confirm word */ 493 ptr = sc->setwin(sc, FEPSTAT); 494 W(ptr + 0) = 0; 495 496 /* Run the BIOS request */ 497 outb(sc->port, FEPREQ | FEPMEM); /* send interrupt to BIOS */ 498 outb(sc->port, FEPCLR | FEPMEM); 499 break; 500 } 501 502 /* Now wait 'till the FEP/OS has booted */ 503 for (i = 0; vW(ptr) != *(u_short *)"OS"; i++) { 504 if (i > 2*hz) { 505 log(LOG_ERR, "digi%d: FEP/OS start failed " 506 "(0x%02x != 0x%02x)\n", 507 sc->res.unit, vW(ptr), *(u_short *)"OS"); 508 sc->hidewin(sc); 509 return (EIO); 510 } 511 digi_delay(sc, "digifep1", 5); 512 } 513 514 DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS started after %d iterations\n", i)); 515 516 if (sc->model >= PCXEM) { 517 ptr = sc->setwin(sc, 0xe04); 518 vW(ptr) = 2; 519 ptr = sc->setwin(sc, 0xc02); 520 sc->numports = vW(ptr); 521 } else { 522 ptr = sc->setwin(sc, 0xc22); 523 sc->numports = vW(ptr); 524 } 525 526 if (sc->numports == 0) { 527 device_printf(sc->dev, "%s, 0 ports found\n", sc->name); 528 sc->hidewin(sc); 529 return (0); 530 } 531 532 if (sc->numports > 256) { 533 /* Our minor numbering scheme is broken for more than 256 */ 534 device_printf(sc->dev, "%s, 256 ports (%d ports found)\n", 535 sc->name, sc->numports); 536 sc->numports = 256; 537 } else 538 device_printf(sc->dev, "%s, %d ports found\n", sc->name, 539 sc->numports); 540 541 if (sc->ports) 542 free(sc->ports, M_TTYS); 543 sc->ports = malloc(sizeof(struct digi_p) * sc->numports, 544 M_TTYS, M_WAITOK | M_ZERO); 545 546 if (sc->ttys) 547 free(sc->ttys, M_TTYS); 548 sc->ttys = malloc(sizeof(struct tty) * sc->numports, 549 M_TTYS, M_WAITOK | M_ZERO); 550 551 /* 552 * XXX Should read port 0xc90 for an array of 2byte values, 1 per 553 * port. If the value is 0, the port is broken.... 554 */ 555 556 ptr = sc->setwin(sc, 0); 557 558 /* We should now init per-port structures */ 559 bc = (volatile struct board_chan *)(ptr + CHANSTRUCT); 560 sc->gdata = (volatile struct global_data *)(ptr + FEP_GLOBAL); 561 562 sc->memcmd = ptr + sc->gdata->cstart; 563 sc->memevent = ptr + sc->gdata->istart; 564 565 for (i = 0; i < sc->numports; i++, bc++) { 566 port = sc->ports + i; 567 port->pnum = i; 568 port->sc = sc; 569 port->status = ENABLED; 570 port->tp = sc->ttys + i; 571 port->bc = bc; 572 573 if (sc->model == PCXEVE) { 574 port->txbuf = ptr + 575 (((bc->tseg - sc->mem_seg) << 4) & 0x1fff); 576 port->rxbuf = ptr + 577 (((bc->rseg - sc->mem_seg) << 4) & 0x1fff); 578 port->txwin = FEPWIN | ((bc->tseg - sc->mem_seg) >> 9); 579 port->rxwin = FEPWIN | ((bc->rseg - sc->mem_seg) >> 9); 580 } else if (sc->model == PCXI || sc->model == PCXE) { 581 port->txbuf = ptr + ((bc->tseg - sc->mem_seg) << 4); 582 port->rxbuf = ptr + ((bc->rseg - sc->mem_seg) << 4); 583 port->txwin = port->rxwin = 0; 584 } else { 585 port->txbuf = ptr + 586 (((bc->tseg - sc->mem_seg) << 4) % sc->win_size); 587 port->rxbuf = ptr + 588 (((bc->rseg - sc->mem_seg) << 4) % sc->win_size); 589 port->txwin = FEPWIN | 590 (((bc->tseg - sc->mem_seg) << 4) / sc->win_size); 591 port->rxwin = FEPWIN | 592 (((bc->rseg - sc->mem_seg) << 4) / sc->win_size); 593 } 594 port->txbufsize = bc->tmax + 1; 595 port->rxbufsize = bc->rmax + 1; 596 597 lowwater = port->txbufsize >> 2; 598 if (lowwater > 1024) 599 lowwater = 1024; 600 sc->setwin(sc, 0); 601 fepcmd_w(port, STXLWATER, lowwater, 10); 602 fepcmd_w(port, SRXLWATER, port->rxbufsize >> 2, 10); 603 fepcmd_w(port, SRXHWATER, (3 * port->rxbufsize) >> 2, 10); 604 605 bc->edelay = 100; 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 650digimodem(struct tty *tp, int sigon, int sigoff) 651{ 652 struct digi_softc *sc; 653 struct digi_p *port; 654 int mynor, unit, pnum; 655 int bitand, bitor, mstat; 656 657 mynor = minor(tp->t_dev); 658 unit = MINOR_TO_UNIT(mynor); 659 pnum = MINOR_TO_PORT(mynor); 660 661 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 662 port = &sc->ports[pnum]; 663 664 if (sigon == 0 && sigoff == 0) { 665 port->sc->setwin(port->sc, 0); 666 mstat = port->bc->mstat; 667 port->sc->hidewin(port->sc); 668 if (mstat & port->sc->csigs->rts) 669 sigon |= SER_RTS; 670 if (mstat & port->cd) 671 sigon |= SER_DCD; 672 if (mstat & port->dsr) 673 sigon |= SER_DSR; 674 if (mstat & port->sc->csigs->cts) 675 sigon |= SER_CTS; 676 if (mstat & port->sc->csigs->ri) 677 sigon |= SER_RI; 678 if (mstat & port->sc->csigs->dtr) 679 sigon |= SER_DTR; 680 return (sigon); 681 } 682 683 bitand = 0; 684 bitor = 0; 685 686 if (sigoff & SER_DTR) 687 bitand |= port->sc->csigs->dtr; 688 if (sigoff & SER_RTS) 689 bitand |= port->sc->csigs->rts; 690 if (sigon & SER_DTR) 691 bitor |= port->sc->csigs->dtr; 692 if (sigon & SER_RTS) 693 bitor |= port->sc->csigs->rts; 694 fepcmd_b(port, SETMODEM, bitor, ~bitand, 0); 695 return (0); 696} 697 698static int 699digiopen(struct cdev *dev, int flag, int mode, struct thread *td) 700{ 701 struct digi_softc *sc; 702 struct tty *tp; 703 int unit; 704 int pnum; 705 struct digi_p *port; 706 int s; 707 int error, mynor; 708 volatile struct board_chan *bc; 709 710 error = 0; 711 mynor = minor(dev); 712 unit = MINOR_TO_UNIT(minor(dev)); 713 pnum = MINOR_TO_PORT(minor(dev)); 714 715 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 716 if (!sc) 717 return (ENXIO); 718 719 if (sc->status != DIGI_STATUS_ENABLED) { 720 DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n")); 721 return (ENXIO); 722 } 723 if (pnum >= sc->numports) { 724 DLOG(DIGIDB_OPEN, (sc->dev, "port%d: Doesn't exist\n", pnum)); 725 return (ENXIO); 726 } 727 if (mynor & (CTRL_DEV | CONTROL_MASK)) { 728 sc->opencnt++; 729 return (0); 730 } 731 port = &sc->ports[pnum]; 732 tp = dev->si_tty = port->tp; 733 bc = port->bc; 734 735 s = spltty(); 736 737open_top: 738 while (port->status & DIGI_DTR_OFF) { 739 port->wopeners++; 740 error = tsleep(&tp->t_dtr_wait, TTIPRI | PCATCH, "digidtr", 0); 741 port->wopeners--; 742 if (error) 743 goto out; 744 } 745 746 if (tp->t_state & TS_ISOPEN) { 747 /* 748 * The device is open, so everything has been initialized. 749 * Handle conflicts. 750 */ 751 if (mynor & CALLOUT_MASK) { 752 if (!port->active_out) { 753 error = EBUSY; 754 DLOG(DIGIDB_OPEN, (sc->dev, "port %d:" 755 " BUSY error = %d\n", pnum, error)); 756 goto out; 757 } 758 } else if (port->active_out) { 759 if (flag & O_NONBLOCK) { 760 error = EBUSY; 761 DLOG(DIGIDB_OPEN, (sc->dev, 762 "port %d: BUSY error = %d\n", pnum, error)); 763 goto out; 764 } 765 port->wopeners++; 766 error = tsleep(&port->active_out, TTIPRI | PCATCH, 767 "digibi", 0); 768 port->wopeners--; 769 if (error != 0) { 770 DLOG(DIGIDB_OPEN, (sc->dev, 771 "port %d: tsleep(digibi) error = %d\n", 772 pnum, error)); 773 goto out; 774 } 775 goto open_top; 776 } 777 if (tp->t_state & TS_XCLUDE && suser(td) != 0) { 778 error = EBUSY; 779 goto out; 780 } 781 } else { 782 /* 783 * The device isn't open, so there are no conflicts. 784 * Initialize it. Initialization is done twice in many 785 * cases: to preempt sleeping callin opens if we are callout, 786 * and to complete a callin open after DCD rises. 787 */ 788 tp->t_oproc = digistart; 789 tp->t_param = digiparam; 790 tp->t_modem = digimodem; 791 tp->t_break = digibreak; 792 tp->t_stop = digistop; 793 tp->t_dev = dev; 794 tp->t_termios = (mynor & CALLOUT_MASK) ? 795 port->it_out : port->it_in; 796 sc->setwin(sc, 0); 797 798 bc->rout = bc->rin; /* clear input queue */ 799 bc->idata = 1; 800 bc->iempty = 1; 801 bc->ilow = 1; 802 bc->mint = port->cd | port->sc->csigs->ri; 803 bc->tin = bc->tout; 804 if (port->ialtpin) { 805 port->cd = sc->csigs->dsr; 806 port->dsr = sc->csigs->cd; 807 } else { 808 port->cd = sc->csigs->cd; 809 port->dsr = sc->csigs->dsr; 810 } 811 port->wopeners++; /* XXX required ? */ 812 error = digiparam(tp, &tp->t_termios); 813 port->wopeners--; 814 815 if (error != 0) { 816 DLOG(DIGIDB_OPEN, (sc->dev, 817 "port %d: cxpparam error = %d\n", pnum, error)); 818 goto out; 819 } 820 ttsetwater(tp); 821 822 /* handle fake and initial DCD for callout devices */ 823 824 if (bc->mstat & port->cd || mynor & CALLOUT_MASK) 825 ttyld_modem(tp, 1); 826 } 827 828 /* Wait for DCD if necessary */ 829 if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) && 830 !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) { 831 port->wopeners++; 832 error = tsleep(TSA_CARR_ON(tp), TTIPRI | PCATCH, "digidcd", 0); 833 port->wopeners--; 834 if (error != 0) { 835 DLOG(DIGIDB_OPEN, (sc->dev, 836 "port %d: tsleep(digidcd) error = %d\n", 837 pnum, error)); 838 goto out; 839 } 840 goto open_top; 841 } 842 error = ttyld_open(tp, dev); 843 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: l_open error = %d\n", 844 pnum, error)); 845 846 ttyldoptim(tp); 847 848 if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK) 849 port->active_out = TRUE; 850 851 if (tp->t_state & TS_ISOPEN) 852 sc->opencnt++; 853out: 854 splx(s); 855 856 if (!(tp->t_state & TS_ISOPEN)) 857 digihardclose(port); 858 859 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: open() returns %d\n", 860 pnum, error)); 861 862 return (error); 863} 864 865static int 866digiclose(struct cdev *dev, int flag, int mode, struct thread *td) 867{ 868 int mynor; 869 struct tty *tp; 870 int unit, pnum; 871 struct digi_softc *sc; 872 struct digi_p *port; 873 int s; 874 875 mynor = minor(dev); 876 unit = MINOR_TO_UNIT(mynor); 877 pnum = MINOR_TO_PORT(mynor); 878 879 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 880 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 881 882 if (mynor & (CTRL_DEV | CONTROL_MASK)) { 883 sc->opencnt--; 884 return (0); 885 } 886 887 port = sc->ports + pnum; 888 tp = port->tp; 889 890 DLOG(DIGIDB_CLOSE, (sc->dev, "port %d: closing\n", pnum)); 891 892 s = spltty(); 893 ttyld_close(tp, flag); 894 ttyldoptim(tp); 895 digihardclose(port); 896 tty_close(tp); 897 if (--sc->opencnt == 0) 898 splx(s); 899 return (0); 900} 901 902static void 903digidtrwakeup(void *chan) 904{ 905 struct digi_p *port = chan; 906 907 port->status &= ~DIGI_DTR_OFF; 908 wakeup(&port->tp->t_dtr_wait); 909 port->wopeners--; 910} 911 912static void 913digihardclose(struct digi_p *port) 914{ 915 volatile struct board_chan *bc; 916 int s; 917 918 bc = port->bc; 919 920 s = spltty(); 921 port->sc->setwin(port->sc, 0); 922 bc->idata = 0; 923 bc->iempty = 0; 924 bc->ilow = 0; 925 bc->mint = 0; 926 if ((port->tp->t_cflag & HUPCL) || 927 (!port->active_out && !(bc->mstat & port->cd) && 928 !(port->it_in.c_cflag & CLOCAL)) || 929 !(port->tp->t_state & TS_ISOPEN)) { 930 digimodem(port->tp, 0, SER_DTR | SER_RTS); 931 if (port->tp->t_dtr_wait != 0) { 932 /* Schedule a wakeup of any callin devices */ 933 port->wopeners++; 934 timeout(&digidtrwakeup, port, port->tp->t_dtr_wait); 935 port->status |= DIGI_DTR_OFF; 936 } 937 } 938 port->active_out = FALSE; 939 wakeup(&port->active_out); 940 wakeup(TSA_CARR_ON(port->tp)); 941 splx(s); 942} 943 944static int 945digiread(struct cdev *dev, struct uio *uio, int flag) 946{ 947 int mynor; 948 struct tty *tp; 949 int error, unit, pnum; 950 struct digi_softc *sc; 951 952 mynor = minor(dev); 953 if (mynor & CONTROL_MASK) 954 return (ENODEV); 955 956 unit = MINOR_TO_UNIT(mynor); 957 pnum = MINOR_TO_PORT(mynor); 958 959 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 960 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 961 tp = &sc->ttys[pnum]; 962 963 error = ttyld_read(tp, uio, flag); 964 DLOG(DIGIDB_READ, (sc->dev, "port %d: read() returns %d\n", 965 pnum, error)); 966 967 return (error); 968} 969 970static int 971digiwrite(struct cdev *dev, struct uio *uio, int flag) 972{ 973 int mynor; 974 struct tty *tp; 975 int error, unit, pnum; 976 struct digi_softc *sc; 977 978 mynor = minor(dev); 979 if (mynor & CONTROL_MASK) 980 return (ENODEV); 981 982 unit = MINOR_TO_UNIT(mynor); 983 pnum = MINOR_TO_PORT(mynor); 984 985 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 986 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit)); 987 tp = &sc->ttys[pnum]; 988 989 error = ttyld_write(tp, uio, flag); 990 DLOG(DIGIDB_WRITE, (sc->dev, "port %d: write() returns %d\n", 991 pnum, error)); 992 993 return (error); 994} 995 996/* 997 * Load module "digi_<mod>.ko" and look for a symbol called digi_mod_<mod>. 998 * 999 * Populate sc->bios, sc->fep, and sc->link from this data. 1000 * 1001 * sc->fep.data, sc->bios.data and sc->link.data are malloc()d according 1002 * to their respective sizes. 1003 * 1004 * The module is unloaded when we're done. 1005 */ 1006static int 1007digi_loadmoduledata(struct digi_softc *sc) 1008{ 1009 struct digi_mod *digi_mod; 1010 linker_file_t lf; 1011 char *modfile, *sym; 1012 caddr_t symptr; 1013 int modlen, res; 1014 1015 KASSERT(sc->bios.data == NULL, ("Uninitialised BIOS variable")); 1016 KASSERT(sc->fep.data == NULL, ("Uninitialised FEP variable")); 1017 KASSERT(sc->link.data == NULL, ("Uninitialised LINK variable")); 1018 KASSERT(sc->module != NULL, ("Uninitialised module name")); 1019 1020 modlen = strlen(sc->module); 1021 modfile = malloc(modlen + 6, M_TEMP, M_WAITOK); 1022 snprintf(modfile, modlen + 6, "digi_%s", sc->module); 1023 res = linker_reference_module(modfile, NULL, &lf); 1024 if ((res = linker_reference_module(modfile, NULL, &lf)) != 0) 1025 printf("%s: Failed %d to autoload module\n", modfile, res); 1026 free(modfile, M_TEMP); 1027 if (res != 0) 1028 return (res); 1029 1030 sym = malloc(modlen + 10, M_TEMP, M_WAITOK); 1031 snprintf(sym, modlen + 10, "digi_mod_%s", sc->module); 1032 if ((symptr = linker_file_lookup_symbol(lf, sym, 0)) == NULL) 1033 printf("digi_%s.ko: Symbol `%s' not found\n", sc->module, sym); 1034 free(sym, M_TEMP); 1035 1036 digi_mod = (struct digi_mod *)symptr; 1037 if (digi_mod->dm_version != DIGI_MOD_VERSION) { 1038 printf("digi_%s.ko: Invalid version %d (need %d)\n", 1039 sc->module, digi_mod->dm_version, DIGI_MOD_VERSION); 1040 linker_file_unload(lf, LINKER_UNLOAD_FORCE); 1041 return (EINVAL); 1042 } 1043 1044 sc->bios.size = digi_mod->dm_bios.size; 1045 if (sc->bios.size != 0 && digi_mod->dm_bios.data != NULL) { 1046 sc->bios.data = malloc(sc->bios.size, M_TTYS, M_WAITOK); 1047 bcopy(digi_mod->dm_bios.data, sc->bios.data, sc->bios.size); 1048 } 1049 1050 sc->fep.size = digi_mod->dm_fep.size; 1051 if (sc->fep.size != 0 && digi_mod->dm_fep.data != NULL) { 1052 sc->fep.data = malloc(sc->fep.size, M_TTYS, M_WAITOK); 1053 bcopy(digi_mod->dm_fep.data, sc->fep.data, sc->fep.size); 1054 } 1055 1056 sc->link.size = digi_mod->dm_link.size; 1057 if (sc->link.size != 0 && digi_mod->dm_link.data != NULL) { 1058 sc->link.data = malloc(sc->link.size, M_TTYS, M_WAITOK); 1059 bcopy(digi_mod->dm_link.data, sc->link.data, sc->link.size); 1060 } 1061 1062 linker_file_unload(lf, LINKER_UNLOAD_FORCE); 1063 1064 return (0); 1065} 1066 1067static int 1068digiioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) 1069{ 1070 int unit, pnum, mynor, error, s; 1071 struct digi_softc *sc; 1072 struct digi_p *port; 1073 struct tty *tp; 1074#ifndef BURN_BRIDGES 1075#if defined(COMPAT_43) 1076 int oldcmd; 1077 struct termios term; 1078#endif 1079#endif 1080 1081 mynor = minor(dev); 1082 unit = MINOR_TO_UNIT(mynor); 1083 pnum = MINOR_TO_PORT(mynor); 1084 1085 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1086 KASSERT(sc, ("digi%d: softc not allocated in digiioctl\n", unit)); 1087 1088 if (sc->status == DIGI_STATUS_DISABLED) 1089 return (ENXIO); 1090 1091 if (mynor & CTRL_DEV) { 1092 switch (cmd) { 1093 case DIGIIO_DEBUG: 1094#ifdef DEBUG 1095 digi_debug = *(int *)data; 1096 return (0); 1097#else 1098 device_printf(sc->dev, "DEBUG not defined\n"); 1099 return (ENXIO); 1100#endif 1101 case DIGIIO_REINIT: 1102 digi_loadmoduledata(sc); 1103 error = digi_init(sc); 1104 digi_freemoduledata(sc); 1105 return (error); 1106 1107 case DIGIIO_MODEL: 1108 *(enum digi_model *)data = sc->model; 1109 return (0); 1110 1111 case DIGIIO_IDENT: 1112 return (copyout(sc->name, *(char **)data, 1113 strlen(sc->name) + 1)); 1114 } 1115 } 1116 1117 if (pnum >= sc->numports) 1118 return (ENXIO); 1119 1120 port = sc->ports + pnum; 1121 if (!(port->status & ENABLED)) 1122 return (ENXIO); 1123 1124 tp = port->tp; 1125 1126 if (mynor & CONTROL_MASK) { 1127 struct termios *ct; 1128 1129 switch (mynor & CONTROL_MASK) { 1130 case CONTROL_INIT_STATE: 1131 ct = (mynor & CALLOUT_MASK) ? 1132 &port->it_out : &port->it_in; 1133 break; 1134 case CONTROL_LOCK_STATE: 1135 ct = (mynor & CALLOUT_MASK) ? 1136 &port->lt_out : &port->lt_in; 1137 break; 1138 default: 1139 return (ENODEV); /* /dev/nodev */ 1140 } 1141 1142 switch (cmd) { 1143 case TIOCSETA: 1144 error = suser(td); 1145 if (error != 0) 1146 return (error); 1147 *ct = *(struct termios *)data; 1148 return (0); 1149 1150 case TIOCGETA: 1151 *(struct termios *)data = *ct; 1152 return (0); 1153 1154 case TIOCGETD: 1155 *(int *)data = TTYDISC; 1156 return (0); 1157 1158 case TIOCGWINSZ: 1159 bzero(data, sizeof(struct winsize)); 1160 return (0); 1161 1162 case DIGIIO_GETALTPIN: 1163 switch (mynor & CONTROL_MASK) { 1164 case CONTROL_INIT_STATE: 1165 *(int *)data = port->ialtpin; 1166 break; 1167 1168 case CONTROL_LOCK_STATE: 1169 *(int *)data = port->laltpin; 1170 break; 1171 1172 default: 1173 panic("Confusion when re-testing minor"); 1174 return (ENODEV); 1175 } 1176 return (0); 1177 1178 case DIGIIO_SETALTPIN: 1179 switch (mynor & CONTROL_MASK) { 1180 case CONTROL_INIT_STATE: 1181 if (!port->laltpin) { 1182 port->ialtpin = !!*(int *)data; 1183 DLOG(DIGIDB_SET, (sc->dev, 1184 "port%d: initial ALTPIN %s\n", pnum, 1185 port->ialtpin ? "set" : "cleared")); 1186 } 1187 break; 1188 1189 case CONTROL_LOCK_STATE: 1190 port->laltpin = !!*(int *)data; 1191 DLOG(DIGIDB_SET, (sc->dev, 1192 "port%d: ALTPIN %slocked\n", 1193 pnum, port->laltpin ? "" : "un")); 1194 break; 1195 1196 default: 1197 panic("Confusion when re-testing minor"); 1198 return (ENODEV); 1199 } 1200 return (0); 1201 1202 default: 1203 return (ENOTTY); 1204 } 1205 } 1206 1207 switch (cmd) { 1208 case DIGIIO_GETALTPIN: 1209 *(int *)data = !!(port->dsr == sc->csigs->cd); 1210 return (0); 1211 1212 case DIGIIO_SETALTPIN: 1213 if (!port->laltpin) { 1214 if (*(int *)data) { 1215 DLOG(DIGIDB_SET, (sc->dev, 1216 "port%d: ALTPIN set\n", pnum)); 1217 port->cd = sc->csigs->dsr; 1218 port->dsr = sc->csigs->cd; 1219 } else { 1220 DLOG(DIGIDB_SET, (sc->dev, 1221 "port%d: ALTPIN cleared\n", pnum)); 1222 port->cd = sc->csigs->cd; 1223 port->dsr = sc->csigs->dsr; 1224 } 1225 } 1226 return (0); 1227 } 1228 1229 tp = port->tp; 1230#ifndef BURN_BRIDGES 1231#if defined(COMPAT_43) 1232 term = tp->t_termios; 1233 oldcmd = cmd; 1234 error = ttsetcompat(tp, &cmd, data, &term); 1235 if (error != 0) 1236 return (error); 1237 if (cmd != oldcmd) 1238 data = (caddr_t) & term; 1239#endif 1240#endif 1241 if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { 1242 int cc; 1243 struct termios *dt; 1244 struct termios *lt; 1245 1246 dt = (struct termios *)data; 1247 lt = (mynor & CALLOUT_MASK) ? &port->lt_out : &port->lt_in; 1248 1249 dt->c_iflag = 1250 (tp->t_iflag & lt->c_iflag) | (dt->c_iflag & ~lt->c_iflag); 1251 dt->c_oflag = 1252 (tp->t_oflag & lt->c_oflag) | (dt->c_oflag & ~lt->c_oflag); 1253 dt->c_cflag = 1254 (tp->t_cflag & lt->c_cflag) | (dt->c_cflag & ~lt->c_cflag); 1255 dt->c_lflag = 1256 (tp->t_lflag & lt->c_lflag) | (dt->c_lflag & ~lt->c_lflag); 1257 port->c_iflag = dt->c_iflag & (IXOFF | IXON | IXANY); 1258 dt->c_iflag &= ~(IXOFF | IXON | IXANY); 1259 for (cc = 0; cc < NCCS; ++cc) 1260 if (lt->c_cc[cc] != 0) 1261 dt->c_cc[cc] = tp->t_cc[cc]; 1262 if (lt->c_ispeed != 0) 1263 dt->c_ispeed = tp->t_ispeed; 1264 if (lt->c_ospeed != 0) 1265 dt->c_ospeed = tp->t_ospeed; 1266 } 1267 error = ttyioctl(dev, cmd, data, flag, td); 1268 if (error == 0 && cmd == TIOCGETA) 1269 ((struct termios *)data)->c_iflag |= port->c_iflag; 1270 ttyldoptim(tp); 1271 if (error >= 0 && error != ENOTTY) 1272 return (error); 1273 s = spltty(); 1274 sc->setwin(sc, 0); 1275 switch (cmd) { 1276 case DIGIIO_RING: 1277 port->send_ring = *(u_char *)data; 1278 break; 1279#ifdef DIGI_INTERRUPT 1280 case TIOCTIMESTAMP: 1281 *(struct timeval *)data = sc->intr_timestamp; 1282 1283 break; 1284#endif 1285 default: 1286 splx(s); 1287 return (ENOTTY); 1288 } 1289 splx(s); 1290 return (0); 1291} 1292 1293static void 1294digibreak(struct tty *tp, int brk) 1295{ 1296 int mynor; 1297 int unit; 1298 int pnum; 1299 struct digi_softc *sc; 1300 struct digi_p *port; 1301 1302 mynor = minor(tp->t_dev); 1303 unit = MINOR_TO_UNIT(mynor); 1304 pnum = MINOR_TO_PORT(mynor); 1305 1306 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1307 KASSERT(sc, ("digi%d: softc not allocated in digiparam\n", unit)); 1308 1309 port = &sc->ports[pnum]; 1310 1311 /* 1312 * now it sends 400 millisecond break because I don't know 1313 * how to send an infinite break 1314 */ 1315 if (brk) 1316 fepcmd_w(port, SENDBREAK, 400, 10); 1317} 1318 1319static int 1320digiparam(struct tty *tp, struct termios *t) 1321{ 1322 int mynor; 1323 int unit; 1324 int pnum; 1325 struct digi_softc *sc; 1326 struct digi_p *port; 1327 int cflag; 1328 int iflag; 1329 int hflow; 1330 int s; 1331 int window; 1332 1333 mynor = minor(tp->t_dev); 1334 unit = MINOR_TO_UNIT(mynor); 1335 pnum = MINOR_TO_PORT(mynor); 1336 1337 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1338 KASSERT(sc, ("digi%d: softc not allocated in digiparam\n", unit)); 1339 1340 port = &sc->ports[pnum]; 1341 1342 DLOG(DIGIDB_SET, (sc->dev, "port%d: setting parameters\n", pnum)); 1343 1344 if (t->c_ispeed == 0) 1345 t->c_ispeed = t->c_ospeed; 1346 1347 cflag = ttspeedtab(t->c_ospeed, digispeedtab); 1348 1349 if (cflag < 0 || (cflag > 0 && t->c_ispeed != t->c_ospeed)) 1350 return (EINVAL); 1351 1352 s = splclock(); 1353 1354 window = sc->window; 1355 sc->setwin(sc, 0); 1356 1357 if (cflag == 0) { /* hangup */ 1358 DLOG(DIGIDB_SET, (sc->dev, "port%d: hangup\n", pnum)); 1359 digimodem(port->tp, 0, SER_DTR | SER_RTS); 1360 } else { 1361 digimodem(port->tp, SER_DTR | SER_RTS, 0); 1362 1363 DLOG(DIGIDB_SET, (sc->dev, "port%d: CBAUD = %d\n", pnum, 1364 cflag)); 1365 1366#if 0 1367 /* convert flags to sysV-style values */ 1368 if (t->c_cflag & PARODD) 1369 cflag |= 0x0200; 1370 if (t->c_cflag & PARENB) 1371 cflag |= 0x0100; 1372 if (t->c_cflag & CSTOPB) 1373 cflag |= 0x0080; 1374#else 1375 /* convert flags to sysV-style values */ 1376 if (t->c_cflag & PARODD) 1377 cflag |= FEP_PARODD; 1378 if (t->c_cflag & PARENB) 1379 cflag |= FEP_PARENB; 1380 if (t->c_cflag & CSTOPB) 1381 cflag |= FEP_CSTOPB; 1382 if (t->c_cflag & CLOCAL) 1383 cflag |= FEP_CLOCAL; 1384#endif 1385 1386 cflag |= (t->c_cflag & CSIZE) >> 4; 1387 DLOG(DIGIDB_SET, (sc->dev, "port%d: CFLAG = 0x%x\n", pnum, 1388 cflag)); 1389 fepcmd_w(port, SETCFLAGS, (unsigned)cflag, 0); 1390 } 1391 1392 iflag = 1393 t->c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK | ISTRIP); 1394 if (port->c_iflag & IXON) 1395 iflag |= 0x400; 1396 if (port->c_iflag & IXANY) 1397 iflag |= 0x800; 1398 if (port->c_iflag & IXOFF) 1399 iflag |= 0x1000; 1400 1401 DLOG(DIGIDB_SET, (sc->dev, "port%d: set iflag = 0x%x\n", pnum, iflag)); 1402 fepcmd_w(port, SETIFLAGS, (unsigned)iflag, 0); 1403 1404 hflow = 0; 1405 if (t->c_cflag & CDTR_IFLOW) 1406 hflow |= sc->csigs->dtr; 1407 if (t->c_cflag & CRTS_IFLOW) 1408 hflow |= sc->csigs->rts; 1409 if (t->c_cflag & CCTS_OFLOW) 1410 hflow |= sc->csigs->cts; 1411 if (t->c_cflag & CDSR_OFLOW) 1412 hflow |= port->dsr; 1413 if (t->c_cflag & CCAR_OFLOW) 1414 hflow |= port->cd; 1415 1416 DLOG(DIGIDB_SET, (sc->dev, "port%d: set hflow = 0x%x\n", pnum, hflow)); 1417 fepcmd_w(port, SETHFLOW, 0xff00 | (unsigned)hflow, 0); 1418 1419 DLOG(DIGIDB_SET, (sc->dev, "port%d: set startc(0x%x), stopc(0x%x)\n", 1420 pnum, t->c_cc[VSTART], t->c_cc[VSTOP])); 1421 fepcmd_b(port, SONOFFC, t->c_cc[VSTART], t->c_cc[VSTOP], 0); 1422 1423 if (sc->window != 0) 1424 sc->towin(sc, 0); 1425 if (window != 0) 1426 sc->towin(sc, window); 1427 splx(s); 1428 1429 return (0); 1430} 1431 1432static void 1433digi_intr(void *vp) 1434{ 1435 struct digi_p *port; 1436 char *cxcon; 1437 struct digi_softc *sc; 1438 int ehead, etail; 1439 volatile struct board_chan *bc; 1440 struct tty *tp; 1441 int head, tail; 1442 int wrapmask; 1443 int size, window; 1444 struct event { 1445 u_char pnum; 1446 u_char event; 1447 u_char mstat; 1448 u_char lstat; 1449 } event; 1450 1451 sc = vp; 1452 1453 if (sc->status != DIGI_STATUS_ENABLED) { 1454 DLOG(DIGIDB_IRQ, (sc->dev, "interrupt on disabled board !\n")); 1455 return; 1456 } 1457 1458#ifdef DIGI_INTERRUPT 1459 microtime(&sc->intr_timestamp); 1460#endif 1461 1462 window = sc->window; 1463 sc->setwin(sc, 0); 1464 1465 if (sc->model >= PCXEM && W(sc->vmem + 0xd00)) { 1466 struct con_bios *con = con_bios_list; 1467 register u_char *ptr; 1468 1469 ptr = sc->vmem + W(sc->vmem + 0xd00); 1470 while (con) { 1471 if (ptr[1] && W(ptr + 2) == W(con->bios + 2)) 1472 /* Not first block -- exact match */ 1473 break; 1474 1475 if (W(ptr + 4) >= W(con->bios + 4) && 1476 W(ptr + 4) <= W(con->bios + 6)) 1477 /* Initial search concetrator BIOS */ 1478 break; 1479 } 1480 1481 if (con == NULL) { 1482 log(LOG_ERR, "digi%d: wanted bios LREV = 0x%04x" 1483 " not found!\n", sc->res.unit, W(ptr + 4)); 1484 W(ptr + 10) = 0; 1485 W(sc->vmem + 0xd00) = 0; 1486 goto eoi; 1487 } 1488 cxcon = con->bios; 1489 W(ptr + 4) = W(cxcon + 4); 1490 W(ptr + 6) = W(cxcon + 6); 1491 if (ptr[1] == 0) 1492 W(ptr + 2) = W(cxcon + 2); 1493 W(ptr + 8) = (ptr[1] << 6) + W(cxcon + 8); 1494 size = W(cxcon + 10) - (ptr[1] << 10); 1495 if (size <= 0) { 1496 W(ptr + 8) = W(cxcon + 8); 1497 W(ptr + 10) = 0; 1498 } else { 1499 if (size > 1024) 1500 size = 1024; 1501 W(ptr + 10) = size; 1502 bcopy(cxcon + (ptr[1] << 10), ptr + 12, size); 1503 } 1504 W(sc->vmem + 0xd00) = 0; 1505 goto eoi; 1506 } 1507 1508 ehead = sc->gdata->ein; 1509 etail = sc->gdata->eout; 1510 if (ehead == etail) { 1511#ifdef DEBUG 1512 sc->intr_count++; 1513 if (sc->intr_count % 6000 == 0) { 1514 DLOG(DIGIDB_IRQ, (sc->dev, 1515 "6000 useless polls %x %x\n", ehead, etail)); 1516 sc->intr_count = 0; 1517 } 1518#endif 1519 goto eoi; 1520 } 1521 while (ehead != etail) { 1522 event = *(volatile struct event *)(sc->memevent + etail); 1523 1524 etail = (etail + 4) & sc->gdata->imax; 1525 1526 if (event.pnum >= sc->numports) { 1527 log(LOG_ERR, "digi%d: port %d: got event" 1528 " on nonexisting port\n", sc->res.unit, 1529 event.pnum); 1530 continue; 1531 } 1532 port = &sc->ports[event.pnum]; 1533 bc = port->bc; 1534 tp = port->tp; 1535 1536 if (!(tp->t_state & TS_ISOPEN) && !port->wopeners) { 1537 DLOG(DIGIDB_IRQ, (sc->dev, 1538 "port %d: event 0x%x on closed port\n", 1539 event.pnum, event.event)); 1540 bc->rout = bc->rin; 1541 bc->idata = 0; 1542 bc->iempty = 0; 1543 bc->ilow = 0; 1544 bc->mint = 0; 1545 continue; 1546 } 1547 if (event.event & ~ALL_IND) 1548 log(LOG_ERR, "digi%d: port%d: ? event 0x%x mstat 0x%x" 1549 " lstat 0x%x\n", sc->res.unit, event.pnum, 1550 event.event, event.mstat, event.lstat); 1551 1552 if (event.event & DATA_IND) { 1553 DLOG(DIGIDB_IRQ, (sc->dev, "port %d: DATA_IND\n", 1554 event.pnum)); 1555 wrapmask = port->rxbufsize - 1; 1556 head = bc->rin; 1557 tail = bc->rout; 1558 1559 size = 0; 1560 if (!(tp->t_state & TS_ISOPEN)) { 1561 bc->rout = head; 1562 goto end_of_data; 1563 } 1564 while (head != tail) { 1565 int top; 1566 1567 DLOG(DIGIDB_INT, (sc->dev, 1568 "port %d: p rx head = %d tail = %d\n", 1569 event.pnum, head, tail)); 1570 top = (head > tail) ? head : wrapmask + 1; 1571 sc->towin(sc, port->rxwin); 1572 size = top - tail; 1573 if (tp->t_state & TS_CAN_BYPASS_L_RINT) { 1574 size = b_to_q((char *)port->rxbuf + 1575 tail, size, &tp->t_rawq); 1576 tail = top - size; 1577 ttwakeup(tp); 1578 } else for (; tail < top;) { 1579 ttyld_rint(tp, port->rxbuf[tail]); 1580 sc->towin(sc, port->rxwin); 1581 size--; 1582 tail++; 1583 if (tp->t_state & TS_TBLOCK) 1584 break; 1585 } 1586 tail &= wrapmask; 1587 sc->setwin(sc, 0); 1588 bc->rout = tail; 1589 head = bc->rin; 1590 if (size) 1591 break; 1592 } 1593 1594 if (bc->orun) { 1595 CE_RECORD(port, CE_OVERRUN); 1596 log(LOG_ERR, "digi%d: port%d: %s\n", 1597 sc->res.unit, event.pnum, 1598 digi_errortxt(CE_OVERRUN)); 1599 bc->orun = 0; 1600 } 1601end_of_data: 1602 if (size) { 1603 tp->t_state |= TS_TBLOCK; 1604 port->status |= PAUSE_RX; 1605 DLOG(DIGIDB_RX, (sc->dev, "port %d: pause RX\n", 1606 event.pnum)); 1607 } else { 1608 bc->idata = 1; 1609 } 1610 } 1611 1612 if (event.event & MODEMCHG_IND) { 1613 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: MODEMCHG_IND\n", 1614 event.pnum)); 1615 1616 if ((event.mstat ^ event.lstat) & port->cd) { 1617 sc->hidewin(sc); 1618 ttyld_modem(tp, event.mstat & port->cd); 1619 sc->setwin(sc, 0); 1620 wakeup(TSA_CARR_ON(tp)); 1621 } 1622 1623 if (event.mstat & sc->csigs->ri) { 1624 DLOG(DIGIDB_RI, (sc->dev, "port %d: RING\n", 1625 event.pnum)); 1626 if (port->send_ring) { 1627 ttyld_rint(tp, 'R'); 1628 ttyld_rint(tp, 'I'); 1629 ttyld_rint(tp, 'N'); 1630 ttyld_rint(tp, 'G'); 1631 ttyld_rint(tp, '\r'); 1632 ttyld_rint(tp, '\n'); 1633 } 1634 } 1635 } 1636 if (event.event & BREAK_IND) { 1637 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n", 1638 event.pnum)); 1639 ttyld_rint(tp, TTY_BI); 1640 } 1641 if (event.event & (LOWTX_IND | EMPTYTX_IND)) { 1642 DLOG(DIGIDB_IRQ, (sc->dev, "port %d:%s%s\n", 1643 event.pnum, 1644 event.event & LOWTX_IND ? " LOWTX" : "", 1645 event.event & EMPTYTX_IND ? " EMPTYTX" : "")); 1646 ttyld_start(tp); 1647 } 1648 } 1649 sc->gdata->eout = etail; 1650eoi: 1651 if (sc->window != 0) 1652 sc->towin(sc, 0); 1653 if (window != 0) 1654 sc->towin(sc, window); 1655} 1656 1657static void 1658digistart(struct tty *tp) 1659{ 1660 int unit; 1661 int pnum; 1662 struct digi_p *port; 1663 struct digi_softc *sc; 1664 volatile struct board_chan *bc; 1665 int head, tail; 1666 int size, ocount, totcnt = 0; 1667 int s; 1668 int wmask; 1669 1670 unit = MINOR_TO_UNIT(minor(tp->t_dev)); 1671 pnum = MINOR_TO_PORT(minor(tp->t_dev)); 1672 1673 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1674 KASSERT(sc, ("digi%d: softc not allocated in digistart\n", unit)); 1675 1676 port = &sc->ports[pnum]; 1677 bc = port->bc; 1678 1679 wmask = port->txbufsize - 1; 1680 1681 s = spltty(); 1682 port->lcc = tp->t_outq.c_cc; 1683 sc->setwin(sc, 0); 1684 if (!(tp->t_state & TS_TBLOCK)) { 1685 if (port->status & PAUSE_RX) { 1686 DLOG(DIGIDB_RX, (sc->dev, "port %d: resume RX\n", 1687 pnum)); 1688 /* 1689 * CAREFUL - braces are needed here if the DLOG is 1690 * optimised out! 1691 */ 1692 } 1693 port->status &= ~PAUSE_RX; 1694 bc->idata = 1; 1695 } 1696 if (!(tp->t_state & TS_TTSTOP) && port->status & PAUSE_TX) { 1697 DLOG(DIGIDB_TX, (sc->dev, "port %d: resume TX\n", pnum)); 1698 port->status &= ~PAUSE_TX; 1699 fepcmd_w(port, RESUMETX, 0, 10); 1700 } 1701 if (tp->t_outq.c_cc == 0) 1702 tp->t_state &= ~TS_BUSY; 1703 else 1704 tp->t_state |= TS_BUSY; 1705 1706 head = bc->tin; 1707 while (tp->t_outq.c_cc != 0) { 1708 tail = bc->tout; 1709 DLOG(DIGIDB_INT, (sc->dev, "port%d: s tx head = %d tail = %d\n", 1710 pnum, head, tail)); 1711 1712 if (head < tail) 1713 size = tail - head - 1; 1714 else { 1715 size = port->txbufsize - head; 1716 if (tail == 0) 1717 size--; 1718 } 1719 1720 if (size == 0) 1721 break; 1722 sc->towin(sc, port->txwin); 1723 ocount = q_to_b(&tp->t_outq, port->txbuf + head, size); 1724 totcnt += ocount; 1725 head += ocount; 1726 head &= wmask; 1727 sc->setwin(sc, 0); 1728 bc->tin = head; 1729 bc->iempty = 1; 1730 bc->ilow = 1; 1731 } 1732 port->lostcc = tp->t_outq.c_cc; 1733 tail = bc->tout; 1734 if (head < tail) 1735 size = port->txbufsize - tail + head; 1736 else 1737 size = head - tail; 1738 1739 port->lbuf = size; 1740 DLOG(DIGIDB_INT, (sc->dev, "port%d: s total cnt = %d\n", pnum, totcnt)); 1741 ttwwakeup(tp); 1742 splx(s); 1743} 1744 1745static void 1746digistop(struct tty *tp, int rw) 1747{ 1748 struct digi_softc *sc; 1749 int unit; 1750 int pnum; 1751 struct digi_p *port; 1752 1753 unit = MINOR_TO_UNIT(minor(tp->t_dev)); 1754 pnum = MINOR_TO_PORT(minor(tp->t_dev)); 1755 1756 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit); 1757 KASSERT(sc, ("digi%d: softc not allocated in digistop\n", unit)); 1758 port = sc->ports + pnum; 1759 1760 DLOG(DIGIDB_TX, (sc->dev, "port %d: pause TX\n", pnum)); 1761 port->status |= PAUSE_TX; 1762 fepcmd_w(port, PAUSETX, 0, 10); 1763} 1764 1765static void 1766fepcmd(struct digi_p *port, int cmd, int op1, int ncmds) 1767{ 1768 u_char *mem; 1769 unsigned tail, head; 1770 int count, n; 1771 1772 mem = port->sc->memcmd; 1773 1774 port->sc->setwin(port->sc, 0); 1775 1776 head = port->sc->gdata->cin; 1777 mem[head + 0] = cmd; 1778 mem[head + 1] = port->pnum; 1779 *(u_short *)(mem + head + 2) = op1; 1780 1781 head = (head + 4) & port->sc->gdata->cmax; 1782 port->sc->gdata->cin = head; 1783 1784 for (count = FEPTIMEOUT; count > 0; count--) { 1785 head = port->sc->gdata->cin; 1786 tail = port->sc->gdata->cout; 1787 n = (head - tail) & port->sc->gdata->cmax; 1788 1789 if (n <= ncmds * sizeof(short) * 4) 1790 break; 1791 } 1792 if (count == 0) 1793 log(LOG_ERR, "digi%d: port%d: timeout on FEP command\n", 1794 port->sc->res.unit, port->pnum); 1795} 1796 1797const char * 1798digi_errortxt(int id) 1799{ 1800 static const char *error_desc[] = { 1801 "silo overflow", 1802 "interrupt-level buffer overflow", 1803 "tty-level buffer overflow", 1804 }; 1805 1806 KASSERT(id >= 0 && id < sizeof(error_desc) / sizeof(error_desc[0]), 1807 ("Unexpected digi error id %d\n", id)); 1808 1809 return (error_desc[id]); 1810} 1811 1812int 1813digi_attach(struct digi_softc *sc) 1814{ 1815 sc->res.ctldev = make_dev(&digi_sw, 1816 (sc->res.unit << 16) | CTRL_DEV, UID_ROOT, GID_WHEEL, 1817 0600, "digi%r.ctl", sc->res.unit); 1818 1819 digi_loadmoduledata(sc); 1820 digi_init(sc); 1821 digi_freemoduledata(sc); 1822 1823 return (0); 1824} 1825 1826static int 1827digi_inuse(struct digi_softc *sc) 1828{ 1829 int i; 1830 1831 for (i = 0; i < sc->numports; i++) 1832 if (sc->ttys[i].t_state & TS_ISOPEN) { 1833 DLOG(DIGIDB_INIT, (sc->dev, "port%d: busy\n", i)); 1834 return (1); 1835 } else if (sc->ports[i].wopeners || sc->ports[i].opencnt) { 1836 DLOG(DIGIDB_INIT, (sc->dev, "port%d: blocked in open\n", 1837 i)); 1838 return (1); 1839 } 1840 return (0); 1841} 1842 1843static void 1844digi_free_state(struct digi_softc *sc) 1845{ 1846 int d, i; 1847 1848 /* Blow it all away */ 1849 1850 for (i = 0; i < sc->numports; i++) 1851 for (d = 0; d < 6; d++) 1852 destroy_dev(sc->ports[i].dev[d]); 1853 1854 untimeout(digi_poll, sc, sc->callout); 1855 callout_handle_init(&sc->callout); 1856 untimeout(digi_int_test, sc, sc->inttest); 1857 callout_handle_init(&sc->inttest); 1858 1859 bus_teardown_intr(sc->dev, sc->res.irq, sc->res.irqHandler); 1860#ifdef DIGI_INTERRUPT 1861 if (sc->res.irq != NULL) { 1862 bus_release_resource(dev, SYS_RES_IRQ, sc->res.irqrid, 1863 sc->res.irq); 1864 sc->res.irq = NULL; 1865 } 1866#endif 1867 if (sc->numports) { 1868 KASSERT(sc->ports, ("digi%d: Lost my ports ?", sc->res.unit)); 1869 KASSERT(sc->ttys, ("digi%d: Lost my ttys ?", sc->res.unit)); 1870 free(sc->ports, M_TTYS); 1871 sc->ports = NULL; 1872 free(sc->ttys, M_TTYS); 1873 sc->ttys = NULL; 1874 sc->numports = 0; 1875 } 1876 1877 sc->status = DIGI_STATUS_NOTINIT; 1878} 1879 1880int 1881digi_detach(device_t dev) 1882{ 1883 struct digi_softc *sc = device_get_softc(dev); 1884 1885 DLOG(DIGIDB_INIT, (sc->dev, "detaching\n")); 1886 1887 /* If we're INIT'd, numports must be 0 */ 1888 KASSERT(sc->numports == 0 || sc->status != DIGI_STATUS_NOTINIT, 1889 ("digi%d: numports(%d) & status(%d) are out of sync", 1890 sc->res.unit, sc->numports, (int)sc->status)); 1891 1892 if (digi_inuse(sc)) 1893 return (EBUSY); 1894 1895 digi_free_state(sc); 1896 1897 destroy_dev(sc->res.ctldev); 1898 1899 if (sc->res.mem != NULL) { 1900 bus_release_resource(dev, SYS_RES_MEMORY, sc->res.mrid, 1901 sc->res.mem); 1902 sc->res.mem = NULL; 1903 } 1904 if (sc->res.io != NULL) { 1905 bus_release_resource(dev, SYS_RES_IOPORT, sc->res.iorid, 1906 sc->res.io); 1907 sc->res.io = NULL; 1908 } 1909 1910 return (0); 1911} 1912 1913int 1914digi_shutdown(device_t dev) 1915{ 1916 return (0); 1917} 1918 1919MODULE_VERSION(digi, 1); 1920