Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / dev / serial / digi / digi.c
CommitLineData
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1/*-
2 * Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
3 * based on work by Slawa Olhovchenkov
4 * John Prince <johnp@knight-trosoft.com>
5 * Eric Hernes
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: src/sys/dev/digi/digi.c,v 1.36 2003/09/26 09:05:57 phk Exp $
b13267a5 30 * $DragonFly: src/sys/dev/serial/digi/digi.c,v 1.8 2006/09/10 01:26:36 dillon Exp $
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31 */
32
33/*-
34 * TODO:
35 * Figure out what the con bios stuff is supposed to do
36 * Test with *LOTS* more cards - I only have a PCI8r and an ISA Xem.
37 */
38
39#include "opt_compat.h"
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/proc.h>
44#include <sys/conf.h>
45#include <sys/linker.h>
46#include <sys/kernel.h>
47#include <sys/mbuf.h>
48#include <sys/malloc.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>
0feeb36f 54#include <sys/thread2.h>
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55#include <machine/resource.h>
56
57#include <dev/serial/digi/digiio.h>
58#include <dev/serial/digi/digireg.h>
59#include <dev/serial/digi/digi.h>
60#include <dev/serial/digi/digi_pci.h>
61#include <dev/serial/digi/digi_bios.h>
62
63#define CDEV_MAJOR 162
64
65#define CTRL_DEV 0x800000
66#define CALLOUT_MASK 0x400000
67#define CONTROL_INIT_STATE 0x100000
68#define CONTROL_LOCK_STATE 0x200000
69#define CONTROL_MASK (CTRL_DEV|CONTROL_INIT_STATE|CONTROL_LOCK_STATE)
70#define UNIT_MASK 0x030000
71#define PORT_MASK 0x0000FF
72#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev)))
73#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK)
74#define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK)>>16)
75#define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK)
76
77static d_open_t digiopen;
78static d_close_t digiclose;
79static d_read_t digiread;
80static d_write_t digiwrite;
81static d_ioctl_t digiioctl;
82
83static void digistop(struct tty *tp, int rw);
84static int digimctl(struct digi_p *port, int bits, int how);
85static void digi_poll(void *ptr);
86static void digi_freedata(struct digi_softc *);
87static void fepcmd(struct digi_p *port, int cmd, int op, int ncmds);
88static void digistart(struct tty *tp);
89static int digiparam(struct tty *tp, struct termios *t);
90static void digihardclose(struct digi_p *port);
91static void digi_intr(void *);
92static int digi_init(struct digi_softc *_sc);
93static int digi_loaddata(struct digi_softc *);
94static int digi_inuse(struct digi_softc *);
95static void digi_free_state(struct digi_softc *);
96
97#define fepcmd_b(port, cmd, op1, op2, ncmds) \
98 fepcmd(port, cmd, (op2 << 8) | op1, ncmds)
99#define fepcmd_w fepcmd
100
101
102static speed_t digidefaultrate = TTYDEF_SPEED;
103
104struct con_bios {
105 struct con_bios *next;
106 u_char *bios;
107 size_t size;
108};
109
110static struct con_bios *con_bios_list;
111devclass_t digi_devclass;
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
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146static struct dev_ops digi_ops = {
147 { "dgm", CDEV_MAJOR, D_TTY },
148 .d_open = digiopen,
149 .d_close = digiclose,
150 .d_read = digiread,
151 .d_write = digiwrite,
152 .d_ioctl = digiioctl,
153 .d_poll = ttypoll,
154 .d_kqfilter = ttykqfilter
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155};
156
157static void
158digi_poll(void *ptr)
159{
160 struct digi_softc *sc;
161
162 sc = (struct digi_softc *)ptr;
163 callout_init(&sc->callout);
164 digi_intr(sc);
165 callout_reset(&sc->callout, (hz >= 200) ? hz / 100 : 1, digi_poll, sc);
166}
167
168static void
169digi_int_test(void *v)
170{
171 struct digi_softc *sc = v;
172
173 callout_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 callout_reset(&sc->callout, (hz >= 200) ? hz / 100 : 1, digi_poll, sc);
182}
183
184static void
185digi_freedata(struct digi_softc *sc)
186{
187 if (sc->fep.data != NULL) {
efda3bd0 188 kfree(sc->fep.data, M_TTYS);
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189 sc->fep.data = NULL;
190 }
191 if (sc->link.data != NULL) {
efda3bd0 192 kfree(sc->link.data, M_TTYS);
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193 sc->link.data = NULL;
194 }
195 if (sc->bios.data != NULL) {
efda3bd0 196 kfree(sc->bios.data, M_TTYS);
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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, 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)
efda3bd0 542 kfree(sc->ports, M_TTYS);
77652cad 543 sc->ports = kmalloc(sizeof(struct digi_p) * sc->numports,
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544 M_TTYS, M_WAITOK | M_ZERO);
545
546 if (sc->ttys)
efda3bd0 547 kfree(sc->ttys, M_TTYS);
77652cad 548 sc->ttys = kmalloc(sizeof(struct tty) * sc->numports,
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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 port->dtr_wait = 3 * hz;
607
608 /*
609 * We don't use all the flags from <sys/ttydefaults.h> since
610 * they are only relevant for logins. It's important to have
611 * echo off initially so that the line doesn't start blathering
612 * before the echo flag can be turned off.
613 */
614 port->it_in.c_iflag = 0;
615 port->it_in.c_oflag = 0;
616 port->it_in.c_cflag = TTYDEF_CFLAG;
617 port->it_in.c_lflag = 0;
618 termioschars(&port->it_in);
619 port->it_in.c_ispeed = port->it_in.c_ospeed = digidefaultrate;
620 port->it_out = port->it_in;
621 port->send_ring = 1; /* Default action on signal RI */
622
fef8985e 623 port->dev[0] = make_dev(&digi_ops, (sc->res.unit << 16) + i,
561af43f 624 UID_ROOT, GID_WHEEL, 0600, "ttyD%d.%d", sc->res.unit, i);
fef8985e 625 port->dev[1] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
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626 CONTROL_INIT_STATE, UID_ROOT, GID_WHEEL,
627 0600, "ttyiD%d.%d", sc->res.unit, i);
fef8985e 628 port->dev[2] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
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629 CONTROL_LOCK_STATE, UID_ROOT, GID_WHEEL,
630 0600, "ttylD%d.%d", sc->res.unit, i);
fef8985e 631 port->dev[3] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
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632 CALLOUT_MASK, UID_UUCP, GID_DIALER,
633 0660, "cuaD%d.%d", sc->res.unit, i);
fef8985e 634 port->dev[4] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
561af43f
JS
635 CALLOUT_MASK | CONTROL_INIT_STATE, UID_UUCP, GID_DIALER,
636 0660, "cuaiD%d.%d", sc->res.unit, i);
fef8985e 637 port->dev[5] = make_dev(&digi_ops, ((sc->res.unit << 16) + i) |
561af43f
JS
638 CALLOUT_MASK | CONTROL_LOCK_STATE, UID_UUCP, GID_DIALER,
639 0660, "cualD%d.%d", sc->res.unit, i);
640 }
641
642 sc->hidewin(sc);
643 callout_reset(&sc->inttest, hz, digi_int_test, sc);
644 /* fepcmd_w(&sc->ports[0], 0xff, 0, 0); */
645 sc->status = DIGI_STATUS_ENABLED;
646
647 return (0);
648}
649
650static int
651digimctl(struct digi_p *port, int bits, int how)
652{
653 int mstat;
654
655 if (how == DMGET) {
656 port->sc->setwin(port->sc, 0);
657 mstat = port->bc->mstat;
658 port->sc->hidewin(port->sc);
659 bits = TIOCM_LE;
660 if (mstat & port->sc->csigs->rts)
661 bits |= TIOCM_RTS;
662 if (mstat & port->cd)
663 bits |= TIOCM_CD;
664 if (mstat & port->dsr)
665 bits |= TIOCM_DSR;
666 if (mstat & port->sc->csigs->cts)
667 bits |= TIOCM_CTS;
668 if (mstat & port->sc->csigs->ri)
669 bits |= TIOCM_RI;
670 if (mstat & port->sc->csigs->dtr)
671 bits |= TIOCM_DTR;
672 return (bits);
673 }
674
675 /* Only DTR and RTS may be set */
676 mstat = 0;
677 if (bits & TIOCM_DTR)
678 mstat |= port->sc->csigs->dtr;
679 if (bits & TIOCM_RTS)
680 mstat |= port->sc->csigs->rts;
681
682 switch (how) {
683 case DMSET:
684 fepcmd_b(port, SETMODEM, mstat, ~mstat, 0);
685 break;
686 case DMBIS:
687 fepcmd_b(port, SETMODEM, mstat, 0, 0);
688 break;
689 case DMBIC:
690 fepcmd_b(port, SETMODEM, 0, mstat, 0);
691 break;
692 }
693
694 return (0);
695}
696
697static void
698digi_disc_optim(struct tty *tp, struct termios *t, struct digi_p *port)
699{
700 if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP)) &&
701 (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) &&
702 (!(t->c_iflag & PARMRK) ||
703 (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) &&
704 !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) &&
705 linesw[tp->t_line].l_rint == ttyinput)
706 tp->t_state |= TS_CAN_BYPASS_L_RINT;
707 else
708 tp->t_state &= ~TS_CAN_BYPASS_L_RINT;
709}
710
711static int
fef8985e 712digiopen(struct dev_open_args *ap)
561af43f 713{
b13267a5 714 cdev_t dev = ap->a_head.a_dev;
561af43f
JS
715 struct digi_softc *sc;
716 struct tty *tp;
717 int unit;
718 int pnum;
719 struct digi_p *port;
561af43f
JS
720 int error, mynor;
721 volatile struct board_chan *bc;
722
723 error = 0;
724 mynor = minor(dev);
725 unit = MINOR_TO_UNIT(minor(dev));
726 pnum = MINOR_TO_PORT(minor(dev));
727
728 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
729 if (!sc)
730 return (ENXIO);
731
732 if (sc->status != DIGI_STATUS_ENABLED) {
733 DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n"));
734 return (ENXIO);
735 }
736 if (pnum >= sc->numports) {
737 DLOG(DIGIDB_OPEN, (sc->dev, "port%d: Doesn't exist\n", pnum));
738 return (ENXIO);
739 }
740 if (mynor & (CTRL_DEV | CONTROL_MASK)) {
741 sc->opencnt++;
742 return (0);
743 }
744 port = &sc->ports[pnum];
745 tp = dev->si_tty = port->tp;
746 bc = port->bc;
747
0feeb36f 748 crit_enter();
561af43f
JS
749
750open_top:
751 while (port->status & DIGI_DTR_OFF) {
752 port->wopeners++;
753 error = tsleep(&port->dtr_wait, PCATCH, "digidtr", 0);
754 port->wopeners--;
755 if (error)
756 goto out;
757 }
758
759 if (tp->t_state & TS_ISOPEN) {
760 /*
761 * The device is open, so everything has been initialized.
762 * Handle conflicts.
763 */
764 if (mynor & CALLOUT_MASK) {
765 if (!port->active_out) {
766 error = EBUSY;
767 DLOG(DIGIDB_OPEN, (sc->dev, "port %d:"
768 " BUSY error = %d\n", pnum, error));
769 goto out;
770 }
771 } else if (port->active_out) {
fef8985e 772 if (ap->a_oflags & O_NONBLOCK) {
561af43f
JS
773 error = EBUSY;
774 DLOG(DIGIDB_OPEN, (sc->dev,
775 "port %d: BUSY error = %d\n", pnum, error));
776 goto out;
777 }
778 port->wopeners++;
779 error = tsleep(&port->active_out, PCATCH, "digibi", 0);
780 port->wopeners--;
781 if (error != 0) {
782 DLOG(DIGIDB_OPEN, (sc->dev,
783 "port %d: tsleep(digibi) error = %d\n",
784 pnum, error));
785 goto out;
786 }
787 goto open_top;
788 }
fef8985e 789 if (tp->t_state & TS_XCLUDE && suser_cred(ap->a_cred, 0) != 0) {
561af43f
JS
790 error = EBUSY;
791 goto out;
792 }
793 } else {
794 /*
795 * The device isn't open, so there are no conflicts.
796 * Initialize it. Initialization is done twice in many
797 * cases: to preempt sleeping callin opens if we are callout,
798 * and to complete a callin open after DCD rises.
799 */
800 callout_init(&port->wakeupco);
801 tp->t_oproc = digistart;
802 tp->t_param = digiparam;
803 tp->t_stop = digistop;
804 tp->t_dev = dev;
805 tp->t_termios = (mynor & CALLOUT_MASK) ?
806 port->it_out : port->it_in;
807 sc->setwin(sc, 0);
808
809 bc->rout = bc->rin; /* clear input queue */
810 bc->idata = 1;
811 bc->iempty = 1;
812 bc->ilow = 1;
813 bc->mint = port->cd | port->sc->csigs->ri;
814 bc->tin = bc->tout;
815 if (port->ialtpin) {
816 port->cd = sc->csigs->dsr;
817 port->dsr = sc->csigs->cd;
818 } else {
819 port->cd = sc->csigs->cd;
820 port->dsr = sc->csigs->dsr;
821 }
822 port->wopeners++; /* XXX required ? */
823 error = digiparam(tp, &tp->t_termios);
824 port->wopeners--;
825
826 if (error != 0) {
827 DLOG(DIGIDB_OPEN, (sc->dev,
828 "port %d: cxpparam error = %d\n", pnum, error));
829 goto out;
830 }
831 ttsetwater(tp);
832
833 /* handle fake and initial DCD for callout devices */
834
835 if (bc->mstat & port->cd || mynor & CALLOUT_MASK)
836 linesw[tp->t_line].l_modem(tp, 1);
837 }
838
839 /* Wait for DCD if necessary */
840 if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) &&
fef8985e 841 !(tp->t_cflag & CLOCAL) && !(ap->a_oflags & O_NONBLOCK)) {
561af43f
JS
842 port->wopeners++;
843 error = tsleep(TSA_CARR_ON(tp), PCATCH, "digidcd", 0);
844 port->wopeners--;
845 if (error != 0) {
846 DLOG(DIGIDB_OPEN, (sc->dev,
847 "port %d: tsleep(digidcd) error = %d\n",
848 pnum, error));
849 goto out;
850 }
851 goto open_top;
852 }
853 error = linesw[tp->t_line].l_open(dev, tp);
854 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: l_open error = %d\n",
855 pnum, error));
856
857 digi_disc_optim(tp, &tp->t_termios, port);
858
859 if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK)
860 port->active_out = TRUE;
861
862 if (tp->t_state & TS_ISOPEN)
863 sc->opencnt++;
864out:
0feeb36f 865 crit_exit();
561af43f
JS
866
867 if (!(tp->t_state & TS_ISOPEN))
868 digihardclose(port);
869
870 DLOG(DIGIDB_OPEN, (sc->dev, "port %d: open() returns %d\n",
871 pnum, error));
872
873 return (error);
874}
875
876static int
fef8985e 877digiclose(struct dev_close_args *ap)
561af43f 878{
b13267a5 879 cdev_t dev = ap->a_head.a_dev;
561af43f
JS
880 int mynor;
881 struct tty *tp;
882 int unit, pnum;
883 struct digi_softc *sc;
884 struct digi_p *port;
561af43f
JS
885
886 mynor = minor(dev);
887 unit = MINOR_TO_UNIT(mynor);
888 pnum = MINOR_TO_PORT(mynor);
889
890 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
891 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
892
893 if (mynor & (CTRL_DEV | CONTROL_MASK)) {
894 sc->opencnt--;
895 return (0);
896 }
897
898 port = sc->ports + pnum;
899 tp = port->tp;
900
901 DLOG(DIGIDB_CLOSE, (sc->dev, "port %d: closing\n", pnum));
902
0feeb36f 903 crit_enter();
fef8985e 904 linesw[tp->t_line].l_close(tp, ap->a_fflag);
561af43f
JS
905 digi_disc_optim(tp, &tp->t_termios, port);
906 digistop(tp, FREAD | FWRITE);
907 digihardclose(port);
908 ttyclose(tp);
0feeb36f
MD
909 --sc->opencnt;
910 crit_exit();
561af43f
JS
911 return (0);
912}
913
914static void
915digidtrwakeup(void *chan)
916{
917 struct digi_p *port = chan;
918
919 port->status &= ~DIGI_DTR_OFF;
920 wakeup(&port->dtr_wait);
921 port->wopeners--;
922}
923
924static void
925digihardclose(struct digi_p *port)
926{
927 volatile struct board_chan *bc;
561af43f
JS
928
929 bc = port->bc;
930
0feeb36f 931 crit_enter();
561af43f
JS
932 port->sc->setwin(port->sc, 0);
933 bc->idata = 0;
934 bc->iempty = 0;
935 bc->ilow = 0;
936 bc->mint = 0;
937 if ((port->tp->t_cflag & HUPCL) ||
938 (!port->active_out && !(bc->mstat & port->cd) &&
939 !(port->it_in.c_cflag & CLOCAL)) ||
940 !(port->tp->t_state & TS_ISOPEN)) {
941 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC);
942 if (port->dtr_wait != 0) {
943 /* Schedule a wakeup of any callin devices */
944 port->wopeners++;
945 callout_reset(&port->wakeupco, port->dtr_wait,
946 digidtrwakeup, port);
947 port->status |= DIGI_DTR_OFF;
948 }
949 }
950 port->active_out = FALSE;
951 wakeup(&port->active_out);
952 wakeup(TSA_CARR_ON(port->tp));
0feeb36f 953 crit_exit();
561af43f
JS
954}
955
956static int
fef8985e 957digiread(struct dev_read_args *ap)
561af43f 958{
b13267a5 959 cdev_t dev = ap->a_head.a_dev;
561af43f
JS
960 int mynor;
961 struct tty *tp;
962 int error, unit, pnum;
963 struct digi_softc *sc;
964
965 mynor = minor(dev);
966 if (mynor & CONTROL_MASK)
967 return (ENODEV);
968
969 unit = MINOR_TO_UNIT(mynor);
970 pnum = MINOR_TO_PORT(mynor);
971
972 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
973 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
974 tp = &sc->ttys[pnum];
975
fef8985e 976 error = linesw[tp->t_line].l_read(tp, ap->a_uio, ap->a_ioflag);
561af43f
JS
977 DLOG(DIGIDB_READ, (sc->dev, "port %d: read() returns %d\n",
978 pnum, error));
979
980 return (error);
981}
982
983static int
fef8985e 984digiwrite(struct dev_write_args *ap)
561af43f 985{
b13267a5 986 cdev_t dev = ap->a_head.a_dev;
561af43f
JS
987 int mynor;
988 struct tty *tp;
989 int error, unit, pnum;
990 struct digi_softc *sc;
991
992 mynor = minor(dev);
993 if (mynor & CONTROL_MASK)
994 return (ENODEV);
995
996 unit = MINOR_TO_UNIT(mynor);
997 pnum = MINOR_TO_PORT(mynor);
998
999 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1000 KASSERT(sc, ("digi%d: softc not allocated in digiclose\n", unit));
1001 tp = &sc->ttys[pnum];
1002
fef8985e 1003 error = linesw[tp->t_line].l_write(tp, ap->a_uio, ap->a_ioflag);
561af43f
JS
1004 DLOG(DIGIDB_WRITE, (sc->dev, "port %d: write() returns %d\n",
1005 pnum, error));
1006
1007 return (error);
1008}
1009
1010/*
1011 * Load module "digi_<mod>.ko" and look for a symbol called digi_mod_<mod>.
1012 *
1013 * Populate sc->bios, sc->fep, and sc->link from this data.
1014 *
1015 * sc->fep.data, sc->bios.data and sc->link.data are malloc()d according
1016 * to their respective sizes.
1017 *
1018 * The module is unloaded when we're done.
1019 */
1020static int
1021digi_loaddata(struct digi_softc *sc)
1022{
1023 struct digi_bios *bios;
1024
1025 KASSERT(sc->bios.data == NULL, ("Uninitialised BIOS variable"));
1026 KASSERT(sc->fep.data == NULL, ("Uninitialised FEP variable"));
1027 KASSERT(sc->link.data == NULL, ("Uninitialised LINK variable"));
1028 KASSERT(sc->module != NULL, ("Uninitialised module name"));
1029
1030 for (bios = digi_bioses; bios->model != NULL; bios++) {
1031 if (!strcmp(bios->model, sc->module))
1032 break;
1033 }
1034 if (bios->model == NULL) {
1035 printf("digi.ko: driver %s not found", sc->module);
1036 return(EINVAL);
1037 }
1038
1039 sc->bios.size = bios->bios_size;
1040 if (sc->bios.size != 0 && bios->bios != NULL) {
efda3bd0 1041 sc->bios.data = kmalloc(sc->bios.size, M_TTYS, M_WAITOK);
561af43f
JS
1042 bcopy(bios->bios, sc->bios.data, sc->bios.size);
1043 }
1044
1045 sc->fep.size = bios->fep_size;
1046 if (sc->fep.size != 0 && bios->fep != NULL) {
efda3bd0 1047 sc->fep.data = kmalloc(sc->fep.size, M_TTYS, M_WAITOK);
561af43f
JS
1048 bcopy(bios->fep, sc->fep.data, sc->fep.size);
1049 }
1050
1051 return (0);
1052}
1053
1054static int
fef8985e 1055digiioctl(struct dev_ioctl_args *ap)
561af43f 1056{
b13267a5 1057 cdev_t dev = ap->a_head.a_dev;
fef8985e
MD
1058 u_long cmd = ap->a_cmd;
1059 caddr_t data = ap->a_data;
0d138879 1060 int unit, pnum, mynor, error;
561af43f
JS
1061 struct digi_softc *sc;
1062 struct digi_p *port;
1063 struct tty *tp;
1064#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
1065 int oldcmd;
1066 struct termios term;
1067#endif
1068
1069 mynor = minor(dev);
1070 unit = MINOR_TO_UNIT(mynor);
1071 pnum = MINOR_TO_PORT(mynor);
1072
1073 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1074 KASSERT(sc, ("digi%d: softc not allocated in digiioctl\n", unit));
1075
1076 if (sc->status == DIGI_STATUS_DISABLED)
1077 return (ENXIO);
1078
1079 if (mynor & CTRL_DEV) {
1080 switch (cmd) {
1081 case DIGIIO_DEBUG:
1082#ifdef DEBUG
1083 digi_debug = *(int *)data;
1084 return (0);
1085#else
1086 device_printf(sc->dev, "DEBUG not defined\n");
1087 return (ENXIO);
1088#endif
1089 case DIGIIO_REINIT:
1090 digi_loaddata(sc);
1091 error = digi_init(sc);
1092 digi_freedata(sc);
1093 return (error);
1094
1095 case DIGIIO_MODEL:
1096 *(enum digi_model *)data = sc->model;
1097 return (0);
1098
1099 case DIGIIO_IDENT:
1100 return (copyout(sc->name, *(char **)data,
1101 strlen(sc->name) + 1));
1102 }
1103 }
1104
1105 if (pnum >= sc->numports)
1106 return (ENXIO);
1107
1108 port = sc->ports + pnum;
1109 if (!(port->status & ENABLED))
1110 return (ENXIO);
1111
1112 tp = port->tp;
1113
1114 if (mynor & CONTROL_MASK) {
1115 struct termios *ct;
1116
1117 switch (mynor & CONTROL_MASK) {
1118 case CONTROL_INIT_STATE:
1119 ct = (mynor & CALLOUT_MASK) ?
1120 &port->it_out : &port->it_in;
1121 break;
1122 case CONTROL_LOCK_STATE:
1123 ct = (mynor & CALLOUT_MASK) ?
1124 &port->lt_out : &port->lt_in;
1125 break;
1126 default:
1127 return (ENODEV); /* /dev/nodev */
1128 }
1129
1130 switch (cmd) {
1131 case TIOCSETA:
fef8985e 1132 error = suser_cred(ap->a_cred, 0);
561af43f
JS
1133 if (error != 0)
1134 return (error);
1135 *ct = *(struct termios *)data;
1136 return (0);
1137
1138 case TIOCGETA:
1139 *(struct termios *)data = *ct;
1140 return (0);
1141
1142 case TIOCGETD:
1143 *(int *)data = TTYDISC;
1144 return (0);
1145
1146 case TIOCGWINSZ:
1147 bzero(data, sizeof(struct winsize));
1148 return (0);
1149
1150 case DIGIIO_GETALTPIN:
1151 switch (mynor & CONTROL_MASK) {
1152 case CONTROL_INIT_STATE:
1153 *(int *)data = port->ialtpin;
1154 break;
1155
1156 case CONTROL_LOCK_STATE:
1157 *(int *)data = port->laltpin;
1158 break;
1159
1160 default:
1161 panic("Confusion when re-testing minor");
1162 return (ENODEV);
1163 }
1164 return (0);
1165
1166 case DIGIIO_SETALTPIN:
1167 switch (mynor & CONTROL_MASK) {
1168 case CONTROL_INIT_STATE:
1169 if (!port->laltpin) {
1170 port->ialtpin = !!*(int *)data;
1171 DLOG(DIGIDB_SET, (sc->dev,
1172 "port%d: initial ALTPIN %s\n", pnum,
1173 port->ialtpin ? "set" : "cleared"));
1174 }
1175 break;
1176
1177 case CONTROL_LOCK_STATE:
1178 port->laltpin = !!*(int *)data;
1179 DLOG(DIGIDB_SET, (sc->dev,
1180 "port%d: ALTPIN %slocked\n",
1181 pnum, port->laltpin ? "" : "un"));
1182 break;
1183
1184 default:
1185 panic("Confusion when re-testing minor");
1186 return (ENODEV);
1187 }
1188 return (0);
1189
1190 default:
1191 return (ENOTTY);
1192 }
1193 }
1194
1195 switch (cmd) {
1196 case DIGIIO_GETALTPIN:
1197 *(int *)data = !!(port->dsr == sc->csigs->cd);
1198 return (0);
1199
1200 case DIGIIO_SETALTPIN:
1201 if (!port->laltpin) {
1202 if (*(int *)data) {
1203 DLOG(DIGIDB_SET, (sc->dev,
1204 "port%d: ALTPIN set\n", pnum));
1205 port->cd = sc->csigs->dsr;
1206 port->dsr = sc->csigs->cd;
1207 } else {
1208 DLOG(DIGIDB_SET, (sc->dev,
1209 "port%d: ALTPIN cleared\n", pnum));
1210 port->cd = sc->csigs->cd;
1211 port->dsr = sc->csigs->dsr;
1212 }
1213 }
1214 return (0);
1215 }
1216
1217 tp = port->tp;
1218#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
1219 term = tp->t_termios;
1220 oldcmd = cmd;
1221 error = ttsetcompat(tp, &cmd, data, &term);
1222 if (error != 0)
1223 return (error);
1224 if (cmd != oldcmd)
1225 data = (caddr_t) & term;
1226#endif
1227 if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) {
1228 int cc;
1229 struct termios *dt;
1230 struct termios *lt;
1231
1232 dt = (struct termios *)data;
1233 lt = (mynor & CALLOUT_MASK) ? &port->lt_out : &port->lt_in;
1234
1235 dt->c_iflag =
1236 (tp->t_iflag & lt->c_iflag) | (dt->c_iflag & ~lt->c_iflag);
1237 dt->c_oflag =
1238 (tp->t_oflag & lt->c_oflag) | (dt->c_oflag & ~lt->c_oflag);
1239 dt->c_cflag =
1240 (tp->t_cflag & lt->c_cflag) | (dt->c_cflag & ~lt->c_cflag);
1241 dt->c_lflag =
1242 (tp->t_lflag & lt->c_lflag) | (dt->c_lflag & ~lt->c_lflag);
1243 port->c_iflag = dt->c_iflag & (IXOFF | IXON | IXANY);
1244 dt->c_iflag &= ~(IXOFF | IXON | IXANY);
1245 for (cc = 0; cc < NCCS; ++cc)
1246 if (lt->c_cc[cc] != 0)
1247 dt->c_cc[cc] = tp->t_cc[cc];
1248 if (lt->c_ispeed != 0)
1249 dt->c_ispeed = tp->t_ispeed;
1250 if (lt->c_ospeed != 0)
1251 dt->c_ospeed = tp->t_ospeed;
1252 }
fef8985e
MD
1253 error = linesw[tp->t_line].l_ioctl(tp, cmd, data,
1254 ap->a_fflag, ap->a_cred);
561af43f
JS
1255 if (error == 0 && cmd == TIOCGETA)
1256 ((struct termios *)data)->c_iflag |= port->c_iflag;
1257
1258 if (error >= 0 && error != ENOIOCTL)
1259 return (error);
0feeb36f 1260 crit_enter();
fef8985e 1261 error = ttioctl(tp, cmd, data, ap->a_fflag);
561af43f
JS
1262 if (error == 0 && cmd == TIOCGETA)
1263 ((struct termios *)data)->c_iflag |= port->c_iflag;
1264
1265 digi_disc_optim(tp, &tp->t_termios, port);
1266 if (error >= 0 && error != ENOIOCTL) {
0feeb36f 1267 crit_exit();
561af43f
JS
1268 return (error);
1269 }
1270 sc->setwin(sc, 0);
1271 switch (cmd) {
1272 case DIGIIO_RING:
1273 port->send_ring = *(u_char *)data;
1274 break;
1275 case TIOCSBRK:
1276 /*
1277 * now it sends 400 millisecond break because I don't know
1278 * how to send an infinite break
1279 */
1280 fepcmd_w(port, SENDBREAK, 400, 10);
1281 break;
1282 case TIOCCBRK:
1283 /* now it's empty */
1284 break;
1285 case TIOCSDTR:
1286 digimctl(port, TIOCM_DTR, DMBIS);
1287 break;
1288 case TIOCCDTR:
1289 digimctl(port, TIOCM_DTR, DMBIC);
1290 break;
1291 case TIOCMSET:
1292 digimctl(port, *(int *)data, DMSET);
1293 break;
1294 case TIOCMBIS:
1295 digimctl(port, *(int *)data, DMBIS);
1296 break;
1297 case TIOCMBIC:
1298 digimctl(port, *(int *)data, DMBIC);
1299 break;
1300 case TIOCMGET:
1301 *(int *)data = digimctl(port, 0, DMGET);
1302 break;
1303 case TIOCMSDTRWAIT:
fef8985e 1304 error = suser_cred(ap->a_cred, 0);
561af43f 1305 if (error != 0) {
0feeb36f 1306 crit_exit();
561af43f
JS
1307 return (error);
1308 }
1309 port->dtr_wait = *(int *)data *hz / 100;
1310
1311 break;
1312 case TIOCMGDTRWAIT:
1313 *(int *)data = port->dtr_wait * 100 / hz;
1314 break;
1315#ifdef DIGI_INTERRUPT
1316 case TIOCTIMESTAMP:
1317 *(struct timeval *)data = sc->intr_timestamp;
1318
1319 break;
1320#endif
1321 default:
0feeb36f 1322 crit_exit();
561af43f
JS
1323 return (ENOTTY);
1324 }
0feeb36f 1325 crit_exit();
561af43f
JS
1326 return (0);
1327}
1328
1329static int
1330digiparam(struct tty *tp, struct termios *t)
1331{
1332 int mynor;
1333 int unit;
1334 int pnum;
1335 struct digi_softc *sc;
1336 struct digi_p *port;
1337 int cflag;
1338 int iflag;
1339 int hflow;
561af43f
JS
1340 int window;
1341
1342 mynor = minor(tp->t_dev);
1343 unit = MINOR_TO_UNIT(mynor);
1344 pnum = MINOR_TO_PORT(mynor);
1345
1346 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1347 KASSERT(sc, ("digi%d: softc not allocated in digiparam\n", unit));
1348
1349 port = &sc->ports[pnum];
1350
1351 DLOG(DIGIDB_SET, (sc->dev, "port%d: setting parameters\n", pnum));
1352
1353 if (t->c_ispeed == 0)
1354 t->c_ispeed = t->c_ospeed;
1355
1356 cflag = ttspeedtab(t->c_ospeed, digispeedtab);
1357
1358 if (cflag < 0 || (cflag > 0 && t->c_ispeed != t->c_ospeed))
1359 return (EINVAL);
1360
0feeb36f 1361 crit_enter();
561af43f
JS
1362
1363 window = sc->window;
1364 sc->setwin(sc, 0);
1365
1366 if (cflag == 0) { /* hangup */
1367 DLOG(DIGIDB_SET, (sc->dev, "port%d: hangup\n", pnum));
1368 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIC);
1369 } else {
1370 digimctl(port, TIOCM_DTR | TIOCM_RTS, DMBIS);
1371
1372 DLOG(DIGIDB_SET, (sc->dev, "port%d: CBAUD = %d\n", pnum,
1373 cflag));
1374
1375#if 0
1376 /* convert flags to sysV-style values */
1377 if (t->c_cflag & PARODD)
1378 cflag |= 0x0200;
1379 if (t->c_cflag & PARENB)
1380 cflag |= 0x0100;
1381 if (t->c_cflag & CSTOPB)
1382 cflag |= 0x0080;
1383#else
1384 /* convert flags to sysV-style values */
1385 if (t->c_cflag & PARODD)
1386 cflag |= FEP_PARODD;
1387 if (t->c_cflag & PARENB)
1388 cflag |= FEP_PARENB;
1389 if (t->c_cflag & CSTOPB)
1390 cflag |= FEP_CSTOPB;
1391 if (t->c_cflag & CLOCAL)
1392 cflag |= FEP_CLOCAL;
1393#endif
1394
1395 cflag |= (t->c_cflag & CSIZE) >> 4;
1396 DLOG(DIGIDB_SET, (sc->dev, "port%d: CFLAG = 0x%x\n", pnum,
1397 cflag));
1398 fepcmd_w(port, SETCFLAGS, (unsigned)cflag, 0);
1399 }
1400
1401 iflag =
1402 t->c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK | ISTRIP);
1403 if (port->c_iflag & IXON)
1404 iflag |= 0x400;
1405 if (port->c_iflag & IXANY)
1406 iflag |= 0x800;
1407 if (port->c_iflag & IXOFF)
1408 iflag |= 0x1000;
1409
1410 DLOG(DIGIDB_SET, (sc->dev, "port%d: set iflag = 0x%x\n", pnum, iflag));
1411 fepcmd_w(port, SETIFLAGS, (unsigned)iflag, 0);
1412
1413 hflow = 0;
1414 if (t->c_cflag & CDTR_IFLOW)
1415 hflow |= sc->csigs->dtr;
1416 if (t->c_cflag & CRTS_IFLOW)
1417 hflow |= sc->csigs->rts;
1418 if (t->c_cflag & CCTS_OFLOW)
1419 hflow |= sc->csigs->cts;
1420 if (t->c_cflag & CDSR_OFLOW)
1421 hflow |= port->dsr;
1422 if (t->c_cflag & CCAR_OFLOW)
1423 hflow |= port->cd;
1424
1425 DLOG(DIGIDB_SET, (sc->dev, "port%d: set hflow = 0x%x\n", pnum, hflow));
1426 fepcmd_w(port, SETHFLOW, 0xff00 | (unsigned)hflow, 0);
1427
1428 DLOG(DIGIDB_SET, (sc->dev, "port%d: set startc(0x%x), stopc(0x%x)\n",
1429 pnum, t->c_cc[VSTART], t->c_cc[VSTOP]));
1430 fepcmd_b(port, SONOFFC, t->c_cc[VSTART], t->c_cc[VSTOP], 0);
1431
1432 if (sc->window != 0)
1433 sc->towin(sc, 0);
1434 if (window != 0)
1435 sc->towin(sc, window);
0feeb36f 1436 crit_exit();
561af43f
JS
1437
1438 return (0);
1439}
1440
1441static void
1442digi_intr(void *vp)
1443{
1444 struct digi_p *port;
1445 char *cxcon;
1446 struct digi_softc *sc;
1447 int ehead, etail;
1448 volatile struct board_chan *bc;
1449 struct tty *tp;
1450 int head, tail;
1451 int wrapmask;
1452 int size, window;
1453 struct event {
1454 u_char pnum;
1455 u_char event;
1456 u_char mstat;
1457 u_char lstat;
1458 } event;
1459
1460 sc = vp;
1461
1462 if (sc->status != DIGI_STATUS_ENABLED) {
1463 DLOG(DIGIDB_IRQ, (sc->dev, "interrupt on disabled board !\n"));
1464 return;
1465 }
1466
1467#ifdef DIGI_INTERRUPT
1468 microtime(&sc->intr_timestamp);
1469#endif
1470
1471 window = sc->window;
1472 sc->setwin(sc, 0);
1473
1474 if (sc->model >= PCXEM && W(sc->vmem + 0xd00)) {
1475 struct con_bios *con = con_bios_list;
6de3da81 1476 u_char *ptr;
561af43f
JS
1477
1478 ptr = sc->vmem + W(sc->vmem + 0xd00);
1479 while (con) {
1480 if (ptr[1] && W(ptr + 2) == W(con->bios + 2))
1481 /* Not first block -- exact match */
1482 break;
1483
1484 if (W(ptr + 4) >= W(con->bios + 4) &&
1485 W(ptr + 4) <= W(con->bios + 6))
1486 /* Initial search concetrator BIOS */
1487 break;
1488 }
1489
1490 if (con == NULL) {
1491 log(LOG_ERR, "digi%d: wanted bios LREV = 0x%04x"
1492 " not found!\n", sc->res.unit, W(ptr + 4));
1493 W(ptr + 10) = 0;
1494 W(sc->vmem + 0xd00) = 0;
1495 goto eoi;
1496 }
1497 cxcon = con->bios;
1498 W(ptr + 4) = W(cxcon + 4);
1499 W(ptr + 6) = W(cxcon + 6);
1500 if (ptr[1] == 0)
1501 W(ptr + 2) = W(cxcon + 2);
1502 W(ptr + 8) = (ptr[1] << 6) + W(cxcon + 8);
1503 size = W(cxcon + 10) - (ptr[1] << 10);
1504 if (size <= 0) {
1505 W(ptr + 8) = W(cxcon + 8);
1506 W(ptr + 10) = 0;
1507 } else {
1508 if (size > 1024)
1509 size = 1024;
1510 W(ptr + 10) = size;
1511 bcopy(cxcon + (ptr[1] << 10), ptr + 12, size);
1512 }
1513 W(sc->vmem + 0xd00) = 0;
1514 goto eoi;
1515 }
1516
1517 ehead = sc->gdata->ein;
1518 etail = sc->gdata->eout;
1519 if (ehead == etail) {
1520#ifdef DEBUG
1521 sc->intr_count++;
1522 if (sc->intr_count % 6000 == 0) {
1523 DLOG(DIGIDB_IRQ, (sc->dev,
1524 "6000 useless polls %x %x\n", ehead, etail));
1525 sc->intr_count = 0;
1526 }
1527#endif
1528 goto eoi;
1529 }
1530 while (ehead != etail) {
1531 event = *(volatile struct event *)(sc->memevent + etail);
1532
1533 etail = (etail + 4) & sc->gdata->imax;
1534
1535 if (event.pnum >= sc->numports) {
1536 log(LOG_ERR, "digi%d: port %d: got event"
1537 " on nonexisting port\n", sc->res.unit,
1538 event.pnum);
1539 continue;
1540 }
1541 port = &sc->ports[event.pnum];
1542 bc = port->bc;
1543 tp = port->tp;
1544
1545 if (!(tp->t_state & TS_ISOPEN) && !port->wopeners) {
1546 DLOG(DIGIDB_IRQ, (sc->dev,
1547 "port %d: event 0x%x on closed port\n",
1548 event.pnum, event.event));
1549 bc->rout = bc->rin;
1550 bc->idata = 0;
1551 bc->iempty = 0;
1552 bc->ilow = 0;
1553 bc->mint = 0;
1554 continue;
1555 }
1556 if (event.event & ~ALL_IND)
1557 log(LOG_ERR, "digi%d: port%d: ? event 0x%x mstat 0x%x"
1558 " lstat 0x%x\n", sc->res.unit, event.pnum,
1559 event.event, event.mstat, event.lstat);
1560
1561 if (event.event & DATA_IND) {
1562 DLOG(DIGIDB_IRQ, (sc->dev, "port %d: DATA_IND\n",
1563 event.pnum));
1564 wrapmask = port->rxbufsize - 1;
1565 head = bc->rin;
1566 tail = bc->rout;
1567
1568 size = 0;
1569 if (!(tp->t_state & TS_ISOPEN)) {
1570 bc->rout = head;
1571 goto end_of_data;
1572 }
1573 while (head != tail) {
1574 int top;
1575
1576 DLOG(DIGIDB_INT, (sc->dev,
1577 "port %d: p rx head = %d tail = %d\n",
1578 event.pnum, head, tail));
1579 top = (head > tail) ? head : wrapmask + 1;
1580 sc->towin(sc, port->rxwin);
1581 size = top - tail;
1582 if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
1583 size = b_to_q((char *)port->rxbuf +
1584 tail, size, &tp->t_rawq);
1585 tail = top - size;
1586 ttwakeup(tp);
1587 } else for (; tail < top;) {
1588 linesw[tp->t_line].
1589 l_rint(port->rxbuf[tail], tp);
1590 sc->towin(sc, port->rxwin);
1591 size--;
1592 tail++;
1593 if (tp->t_state & TS_TBLOCK)
1594 break;
1595 }
1596 tail &= wrapmask;
1597 sc->setwin(sc, 0);
1598 bc->rout = tail;
1599 head = bc->rin;
1600 if (size)
1601 break;
1602 }
1603
1604 if (bc->orun) {
1605 CE_RECORD(port, CE_OVERRUN);
1606 log(LOG_ERR, "digi%d: port%d: %s\n",
1607 sc->res.unit, event.pnum,
1608 digi_errortxt(CE_OVERRUN));
1609 bc->orun = 0;
1610 }
1611end_of_data:
1612 if (size) {
1613 tp->t_state |= TS_TBLOCK;
1614 port->status |= PAUSE_RX;
1615 DLOG(DIGIDB_RX, (sc->dev, "port %d: pause RX\n",
1616 event.pnum));
1617 } else {
1618 bc->idata = 1;
1619 }
1620 }
1621
1622 if (event.event & MODEMCHG_IND) {
1623 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: MODEMCHG_IND\n",
1624 event.pnum));
1625
1626 if ((event.mstat ^ event.lstat) & port->cd) {
1627 sc->hidewin(sc);
1628 linesw[tp->t_line].l_modem
1629 (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 linesw[tp->t_line].l_rint('R', tp);
1639 linesw[tp->t_line].l_rint('I', tp);
1640 linesw[tp->t_line].l_rint('N', tp);
1641 linesw[tp->t_line].l_rint('G', tp);
1642 linesw[tp->t_line].l_rint('\r', tp);
1643 linesw[tp->t_line].l_rint('\n', tp);
1644 }
1645 }
1646 }
1647 if (event.event & BREAK_IND) {
1648 DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n",
1649 event.pnum));
1650 linesw[tp->t_line].l_rint(TTY_BI, tp);
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 (*linesw[tp->t_line].l_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;
561af43f
JS
1678 int wmask;
1679
1680 unit = MINOR_TO_UNIT(minor(tp->t_dev));
1681 pnum = MINOR_TO_PORT(minor(tp->t_dev));
1682
1683 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1684 KASSERT(sc, ("digi%d: softc not allocated in digistart\n", unit));
1685
1686 port = &sc->ports[pnum];
1687 bc = port->bc;
1688
1689 wmask = port->txbufsize - 1;
1690
0feeb36f 1691 crit_enter();
561af43f
JS
1692 port->lcc = tp->t_outq.c_cc;
1693 sc->setwin(sc, 0);
1694 if (!(tp->t_state & TS_TBLOCK)) {
1695 if (port->status & PAUSE_RX) {
1696 DLOG(DIGIDB_RX, (sc->dev, "port %d: resume RX\n",
1697 pnum));
1698 /*
1699 * CAREFUL - braces are needed here if the DLOG is
1700 * optimised out!
1701 */
1702 }
1703 port->status &= ~PAUSE_RX;
1704 bc->idata = 1;
1705 }
1706 if (!(tp->t_state & TS_TTSTOP) && port->status & PAUSE_TX) {
1707 DLOG(DIGIDB_TX, (sc->dev, "port %d: resume TX\n", pnum));
1708 port->status &= ~PAUSE_TX;
1709 fepcmd_w(port, RESUMETX, 0, 10);
1710 }
1711 if (tp->t_outq.c_cc == 0)
1712 tp->t_state &= ~TS_BUSY;
1713 else
1714 tp->t_state |= TS_BUSY;
1715
1716 head = bc->tin;
1717 while (tp->t_outq.c_cc != 0) {
1718 tail = bc->tout;
1719 DLOG(DIGIDB_INT, (sc->dev, "port%d: s tx head = %d tail = %d\n",
1720 pnum, head, tail));
1721
1722 if (head < tail)
1723 size = tail - head - 1;
1724 else {
1725 size = port->txbufsize - head;
1726 if (tail == 0)
1727 size--;
1728 }
1729
1730 if (size == 0)
1731 break;
1732 sc->towin(sc, port->txwin);
1733 ocount = q_to_b(&tp->t_outq, port->txbuf + head, size);
1734 totcnt += ocount;
1735 head += ocount;
1736 head &= wmask;
1737 sc->setwin(sc, 0);
1738 bc->tin = head;
1739 bc->iempty = 1;
1740 bc->ilow = 1;
1741 }
1742 port->lostcc = tp->t_outq.c_cc;
1743 tail = bc->tout;
1744 if (head < tail)
1745 size = port->txbufsize - tail + head;
1746 else
1747 size = head - tail;
1748
1749 port->lbuf = size;
1750 DLOG(DIGIDB_INT, (sc->dev, "port%d: s total cnt = %d\n", pnum, totcnt));
1751 ttwwakeup(tp);
0feeb36f 1752 crit_exit();
561af43f
JS
1753}
1754
1755static void
1756digistop(struct tty *tp, int rw)
1757{
1758 struct digi_softc *sc;
1759 int unit;
1760 int pnum;
1761 struct digi_p *port;
1762
1763 unit = MINOR_TO_UNIT(minor(tp->t_dev));
1764 pnum = MINOR_TO_PORT(minor(tp->t_dev));
1765
1766 sc = (struct digi_softc *)devclass_get_softc(digi_devclass, unit);
1767 KASSERT(sc, ("digi%d: softc not allocated in digistop\n", unit));
1768 port = sc->ports + pnum;
1769
1770 DLOG(DIGIDB_TX, (sc->dev, "port %d: pause TX\n", pnum));
1771 port->status |= PAUSE_TX;
1772 fepcmd_w(port, PAUSETX, 0, 10);
1773}
1774
1775static void
1776fepcmd(struct digi_p *port, int cmd, int op1, int ncmds)
1777{
1778 u_char *mem;
1779 unsigned tail, head;
1780 int count, n;
1781
1782 mem = port->sc->memcmd;
1783
1784 port->sc->setwin(port->sc, 0);
1785
1786 head = port->sc->gdata->cin;
1787 mem[head + 0] = cmd;
1788 mem[head + 1] = port->pnum;
1789 *(u_short *)(mem + head + 2) = op1;
1790
1791 head = (head + 4) & port->sc->gdata->cmax;
1792 port->sc->gdata->cin = head;
1793
1794 for (count = FEPTIMEOUT; count > 0; count--) {
1795 head = port->sc->gdata->cin;
1796 tail = port->sc->gdata->cout;
1797 n = (head - tail) & port->sc->gdata->cmax;
1798
1799 if (n <= ncmds * sizeof(short) * 4)
1800 break;
1801 }
1802 if (count == 0)
1803 log(LOG_ERR, "digi%d: port%d: timeout on FEP command\n",
1804 port->sc->res.unit, port->pnum);
1805}
1806
1807const char *
1808digi_errortxt(int id)
1809{
1810 static const char *error_desc[] = {
1811 "silo overflow",
1812 "interrupt-level buffer overflow",
1813 "tty-level buffer overflow",
1814 };
1815
1816 KASSERT(id >= 0 && id < sizeof(error_desc) / sizeof(error_desc[0]),
1817 ("Unexpected digi error id %d\n", id));
1818
1819 return (error_desc[id]);
1820}
1821
1822int
1823digi_attach(struct digi_softc *sc)
1824{
fef8985e 1825 sc->res.ctldev = make_dev(&digi_ops,
561af43f
JS
1826 (sc->res.unit << 16) | CTRL_DEV, UID_ROOT, GID_WHEEL,
1827 0600, "digi%r.ctl", sc->res.unit);
1828
1829 digi_loaddata(sc);
1830 digi_init(sc);
1831 digi_freedata(sc);
1832
1833 return (0);
1834}
1835
1836static int
1837digi_inuse(struct digi_softc *sc)
1838{
1839 int i;
1840
1841 for (i = 0; i < sc->numports; i++)
1842 if (sc->ttys[i].t_state & TS_ISOPEN) {
1843 DLOG(DIGIDB_INIT, (sc->dev, "port%d: busy\n", i));
1844 return (1);
1845 } else if (sc->ports[i].wopeners || sc->ports[i].opencnt) {
1846 DLOG(DIGIDB_INIT, (sc->dev, "port%d: blocked in open\n",
1847 i));
1848 return (1);
1849 }
1850 return (0);
1851}
1852
1853static void
1854digi_free_state(struct digi_softc *sc)
1855{
1856 int d, i;
1857
1858 /* Blow it all away */
1859
1860 for (i = 0; i < sc->numports; i++)
1861 for (d = 0; d < 6; d++)
1862 destroy_dev(sc->ports[i].dev[d]);
1863
1864 callout_stop(&sc->callout);
1865 callout_stop(&sc->inttest);
1866
1867 bus_teardown_intr(sc->dev, sc->res.irq, sc->res.irqHandler);
1868#ifdef DIGI_INTERRUPT
1869 if (sc->res.irq != NULL) {
1870 bus_release_resource(dev, SYS_RES_IRQ, sc->res.irqrid,
1871 sc->res.irq);
1872 sc->res.irq = NULL;
1873 }
1874#endif
1875 if (sc->numports) {
1876 KASSERT(sc->ports, ("digi%d: Lost my ports ?", sc->res.unit));
1877 KASSERT(sc->ttys, ("digi%d: Lost my ttys ?", sc->res.unit));
efda3bd0 1878 kfree(sc->ports, M_TTYS);
561af43f 1879 sc->ports = NULL;
efda3bd0 1880 kfree(sc->ttys, M_TTYS);
561af43f
JS
1881 sc->ttys = NULL;
1882 sc->numports = 0;
1883 }
1884
1885 sc->status = DIGI_STATUS_NOTINIT;
1886}
1887
1888int
1889digi_detach(device_t dev)
1890{
1891 struct digi_softc *sc = device_get_softc(dev);
1892
1893 DLOG(DIGIDB_INIT, (sc->dev, "detaching\n"));
1894
1895 /* If we're INIT'd, numports must be 0 */
1896 KASSERT(sc->numports == 0 || sc->status != DIGI_STATUS_NOTINIT,
1897 ("digi%d: numports(%d) & status(%d) are out of sync",
1898 sc->res.unit, sc->numports, (int)sc->status));
1899
1900 if (digi_inuse(sc))
1901 return (EBUSY);
1902
1903 digi_free_state(sc);
1904
1905 destroy_dev(sc->res.ctldev);
1906
1907 if (sc->res.mem != NULL) {
1908 bus_release_resource(dev, SYS_RES_MEMORY, sc->res.mrid,
1909 sc->res.mem);
1910 sc->res.mem = NULL;
1911 }
1912 if (sc->res.io != NULL) {
1913 bus_release_resource(dev, SYS_RES_IOPORT, sc->res.iorid,
1914 sc->res.io);
1915 sc->res.io = NULL;
1916 }
1917
1918 return (0);
1919}
1920
1921int
1922digi_shutdown(device_t dev)
1923{
1924 return (0);
1925}
1926
1927MODULE_VERSION(digi, 1);