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