2 * Device driver for Specialix range (SI/XIO) of serial line multiplexors.
4 * Copyright (C) 1990, 1992, 1998 Specialix International,
5 * Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
6 * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au>
8 * Originally derived from: SunOS 4.x version
9 * Ported from BSDI version to FreeBSD by Peter Wemm.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notices, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notices, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by Andy Rutter of
22 * Advanced Methods and Tools Ltd. based on original information
23 * from Specialix International.
24 * 4. Neither the name of Advanced Methods and Tools, nor Specialix
25 * International may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
30 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
31 * NO EVENT SHALL THE AUTHORS BE LIABLE.
33 * $FreeBSD: src/sys/dev/si/si.c,v 1.101.2.1 2001/02/26 04:23:06 jlemon Exp $
34 * $DragonFly: src/sys/dev/serial/si/si.c,v 1.2 2003/06/17 04:28:29 dillon Exp $
38 static const char si_copyright1[] = "@(#) Copyright (C) Specialix International, 1990,1992,1998",
39 si_copyright2[] = "@(#) Copyright (C) Andy Rutter 1993",
40 si_copyright3[] = "@(#) Copyright (C) Peter Wemm 2000";
43 #include "opt_compat.h"
44 #include "opt_debug_si.h"
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #if defined(COMPAT_43) || defined(COMPAT_SUNOS)
49 #include <sys/ioctl_compat.h>
54 #include <sys/fcntl.h>
55 #include <sys/dkstat.h>
56 #include <sys/kernel.h>
57 #include <sys/malloc.h>
58 #include <sys/sysctl.h>
60 #include <machine/bus.h>
62 #include <machine/resource.h>
64 #include <machine/clock.h>
69 #include <machine/stdarg.h>
71 #include <dev/si/sireg.h>
72 #include <dev/si/sivar.h>
73 #include <dev/si/si.h>
76 * This device driver is designed to interface the Specialix International
77 * SI, XIO and SX range of serial multiplexor cards to FreeBSD on an ISA,
78 * EISA or PCI bus machine.
80 * The controller is interfaced to the host via dual port RAM
83 * The code for the Host 1 (very old ISA cards) has not been tested.
86 #define POLL /* turn on poller to scan for lost interrupts */
87 #define REALPOLL /* on each poll, scan for work regardless */
88 #define POLLHZ (hz/10) /* 10 times per second */
89 #define SI_I_HIGH_WATER (TTYHOG - 2 * SI_BUFFERSIZE)
90 #define INT_COUNT 25000 /* max of 125 ints per second */
91 #define JET_INT_COUNT 100 /* max of 100 ints per second */
92 #define RXINT_COUNT 1 /* one rxint per 10 milliseconds */
94 enum si_mctl { GET, SET, BIS, BIC };
96 static void si_command(struct si_port *, int, int);
97 static int si_modem(struct si_port *, enum si_mctl, int);
98 static void si_write_enable(struct si_port *, int);
99 static int si_Sioctl(dev_t, u_long, caddr_t, int, struct proc *);
100 static void si_start(struct tty *);
101 static void si_stop(struct tty *, int);
102 static timeout_t si_lstart;
103 static void si_disc_optim(struct tty *tp, struct termios *t,struct si_port *pp);
104 static void sihardclose(struct si_port *pp);
105 static void sidtrwakeup(void *chan);
108 static char *si_mctl2str(enum si_mctl cmd);
111 static int siparam(struct tty *, struct termios *);
113 static void si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip);
114 static char * si_modulename(int host_type, int uart_type);
116 static d_open_t siopen;
117 static d_close_t siclose;
118 static d_write_t siwrite;
119 static d_ioctl_t siioctl;
121 #define CDEV_MAJOR 68
122 static struct cdevsw si_cdevsw = {
130 /* strategy */ nostrategy,
132 /* maj */ CDEV_MAJOR,
135 /* flags */ D_TTY | D_KQFILTER,
137 /* kqfilter */ ttykqfilter,
140 static int si_Nports;
141 static int si_Nmodules;
142 static int si_debug = 0; /* data, not bss, so it's patchable */
144 SYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RW, &si_debug, 0, "");
146 static struct tty *si__tty;
148 static int si_numunits;
150 devclass_t si_devclass;
152 #ifndef B2000 /* not standard, but the hardware knows it. */
155 static struct speedtab bdrates[] = {
156 { B75, CLK75, }, /* 0x0 */
157 { B110, CLK110, }, /* 0x1 */
158 { B150, CLK150, }, /* 0x3 */
159 { B300, CLK300, }, /* 0x4 */
160 { B600, CLK600, }, /* 0x5 */
161 { B1200, CLK1200, }, /* 0x6 */
162 { B2000, CLK2000, }, /* 0x7 */
163 { B2400, CLK2400, }, /* 0x8 */
164 { B4800, CLK4800, }, /* 0x9 */
165 { B9600, CLK9600, }, /* 0xb */
166 { B19200, CLK19200, }, /* 0xc */
167 { B38400, CLK38400, }, /* 0x2 (out of order!) */
168 { B57600, CLK57600, }, /* 0xd */
169 { B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */
174 /* populated with approx character/sec rates - translated at card
175 * initialisation time to chars per tick of the clock */
176 static int done_chartimes = 0;
177 static struct speedtab chartimes[] = {
194 static volatile int in_intr = 0; /* Inside interrupt handler? */
197 static int si_pollrate; /* in addition to irq */
198 static int si_realpoll = 0; /* poll HW on timer */
200 SYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, "");
201 SYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, "");
203 static int init_finished = 0;
204 static void si_poll(void *);
208 * Array of adapter types and the corresponding RAM size. The order of
209 * entries here MUST match the ordinal of the adapter type.
211 static char *si_type[] = {
214 "SIMCA", /* FreeBSD does not support Microchannel */
223 * We have to make an 8 bit version of bcopy, since some cards can't
224 * deal with 32 bit I/O
227 si_bcopy(const void *src, void *dst, size_t len)
230 *(((u_char *)dst)++) = *(((const u_char *)src)++);
233 si_vbcopy(const volatile void *src, void *dst, size_t len)
236 *(((u_char *)dst)++) = *(((const volatile u_char *)src)++);
239 si_bcopyv(const void *src, volatile void *dst, size_t len)
242 *(((volatile u_char *)dst)++) = *(((const u_char *)src)++);
247 * Attach the device. Initialize the card.
250 siattach(device_t dev)
255 volatile struct si_channel *ccbp;
256 volatile struct si_reg *regp;
257 volatile caddr_t maddr;
258 struct si_module *modp;
260 struct speedtab *spt;
261 int nmodule, nport, x, y;
264 sc = device_get_softc(dev);
265 unit = device_get_unit(dev);
267 sc->sc_typename = si_type[sc->sc_type];
268 if (si_numunits < unit + 1)
269 si_numunits = unit + 1;
271 DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit));
274 if (si_pollrate == 0) {
275 si_pollrate = POLLHZ; /* in addition to irq */
277 si_realpoll = 1; /* scan always */
282 DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit,
283 sc->sc_typename, sc->sc_paddr, sc->sc_maddr));
285 sc->sc_ports = NULL; /* mark as uninitialised */
287 maddr = sc->sc_maddr;
289 /* Stop the CPU first so it won't stomp around while we load */
291 switch (sc->sc_type) {
293 outb(sc->sc_iobase + 2, sc->sc_irq << 4);
296 *(maddr+SIPCIRESET) = 0;
298 case SIJETPCI: /* fall through to JET ISA */
300 *(maddr+SIJETCONFIG) = 0;
303 *(maddr+SIPLRESET) = 0;
306 *(maddr+SIRESET) = 0;
308 default: /* this should never happen */
309 printf("si%d: unsupported configuration\n", unit);
314 /* OK, now lets download the download code */
316 if (SI_ISJET(sc->sc_type)) {
317 DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n",
318 unit, si3_t225_dsize));
319 si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr,
321 DPRINT((0, DBG_DOWNLOAD,
322 "si%d: jet_bootstrap: nbytes %d -> %x\n",
323 unit, si3_t225_bsize, si3_t225_bootloadaddr));
324 si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr,
327 DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n",
328 unit, si2_z280_dsize));
329 si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr,
333 /* Now start the CPU */
335 switch (sc->sc_type) {
337 /* modify the download code to tell it that it's on an EISA */
339 outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4);
340 (void)inb(sc->sc_iobase + 3); /* reset interrupt */
343 /* modify the download code to tell it that it's on a PCI */
345 *(maddr+SIPCIRESET) = 1;
346 *(maddr+SIPCIINTCL) = 0;
349 *(maddr+SIJETRESET) = 0;
350 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN;
353 *(maddr+SIJETRESET) = 0;
354 switch (sc->sc_irq) {
356 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90;
359 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0;
362 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0;
365 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0;
368 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0;
373 *(maddr+SIRESET_CL) = 0;
374 *(maddr+SIINTCL_CL) = 0;
377 *(maddr+SIPLRESET) = 0x10;
378 switch (sc->sc_irq) {
380 *(maddr+SIPLIRQ11) = 0x10;
383 *(maddr+SIPLIRQ12) = 0x10;
386 *(maddr+SIPLIRQ15) = 0x10;
389 *(maddr+SIPLIRQCLR) = 0x10;
391 default: /* this should _REALLY_ never happen */
392 printf("si%d: Uh, it was supported a second ago...\n", unit);
396 DELAY(1000000); /* wait around for a second */
398 regp = (struct si_reg *)maddr;
400 /* wait max of 5 sec for init OK */
401 while (regp->initstat == 0 && y++ < 10) {
404 switch (regp->initstat) {
406 printf("si%d: startup timeout - aborting\n", unit);
407 sc->sc_type = SIEMPTY;
410 if (SI_ISJET(sc->sc_type)) {
411 /* set throttle to 100 times per second */
412 regp->int_count = JET_INT_COUNT;
413 /* rx_intr_count is a NOP in Jet */
415 /* set throttle to 125 times per second */
416 regp->int_count = INT_COUNT;
417 /* rx intr max of 25 times per second */
418 regp->rx_int_count = RXINT_COUNT;
420 regp->int_pending = 0; /* no intr pending */
421 regp->int_scounter = 0; /* reset counter */
425 * No modules found, so give up on this one.
427 printf("si%d: %s - no ports found\n", unit,
428 si_type[sc->sc_type]);
431 printf("si%d: download code version error - initstat %x\n",
432 unit, regp->initstat);
437 * First time around the ports just count them in order
438 * to allocate some memory.
441 modp = (struct si_module *)(maddr + 0x80);
443 DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp));
444 switch (modp->sm_type) {
446 DPRINT((0, DBG_DOWNLOAD,
447 "si%d: Found old TA4 module, 4 ports\n",
452 DPRINT((0, DBG_DOWNLOAD,
453 "si%d: Found old TA8 module, 8 ports\n",
458 DPRINT((0, DBG_DOWNLOAD,
459 "si%d: Found ASIC TA4 module, 4 ports\n",
464 DPRINT((0, DBG_DOWNLOAD,
465 "si%d: Found ASIC TA8 module, 8 ports\n",
470 DPRINT((0, DBG_DOWNLOAD,
471 "si%d: Found CD1400 module, 8 ports\n",
476 DPRINT((0, DBG_DOWNLOAD,
477 "si%d: Found SXDC module, 8 ports\n",
482 printf("si%d: unknown module type %d\n",
483 unit, modp->sm_type);
487 /* this was limited in firmware and is also a driver issue */
488 if ((nport + x) > SI_MAXPORTPERCARD) {
489 printf("si%d: extra ports ignored\n", unit);
498 if (modp->sm_next == 0)
500 modp = (struct si_module *)
501 (maddr + (unsigned)(modp->sm_next & 0x7fff));
503 sc->sc_ports = (struct si_port *)malloc(sizeof(struct si_port) * nport,
505 if (sc->sc_ports == 0) {
507 printf("si%d: fail to malloc memory for port structs\n",
511 bzero(sc->sc_ports, sizeof(struct si_port) * nport);
512 sc->sc_nport = nport;
515 * allocate tty structures for ports
517 tp = (struct tty *)malloc(sizeof(*tp) * nport, M_DEVBUF, M_NOWAIT);
520 bzero(tp, sizeof(*tp) * nport);
524 * Scan round the ports again, this time initialising.
528 modp = (struct si_module *)(maddr + 0x80);
529 uart_type = 1000; /* arbitary, > uchar_max */
531 switch (modp->sm_type) {
554 ccbp = (struct si_channel *)((char *)modp + 0x100);
555 if (uart_type == 1000)
556 uart_type = ccbp->type;
557 else if (uart_type != ccbp->type)
558 printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n",
560 ccbp->type, si_modulename(sc->sc_type, ccbp->type),
561 uart_type, si_modulename(sc->sc_type, uart_type));
563 for (x = 0; x < nport; x++, pp++, ccbp++) {
564 pp->sp_ccb = ccbp; /* save the address */
566 pp->sp_pend = IDLE_CLOSE;
567 pp->sp_state = 0; /* internal flag */
568 pp->sp_dtr_wait = 3 * hz;
569 pp->sp_iin.c_iflag = TTYDEF_IFLAG;
570 pp->sp_iin.c_oflag = TTYDEF_OFLAG;
571 pp->sp_iin.c_cflag = TTYDEF_CFLAG;
572 pp->sp_iin.c_lflag = TTYDEF_LFLAG;
573 termioschars(&pp->sp_iin);
574 pp->sp_iin.c_ispeed = pp->sp_iin.c_ospeed =
576 pp->sp_iout = pp->sp_iin;
579 if (modp->sm_next == 0) {
580 printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n",
586 si_modulename(sc->sc_type, uart_type));
589 modp = (struct si_module *)
590 (maddr + (unsigned)(modp->sm_next & 0x7fff));
592 if (done_chartimes == 0) {
593 for (spt = chartimes ; spt->sp_speed != -1; spt++) {
594 if ((spt->sp_code /= hz) == 0)
600 /* path name devsw minor type uid gid perm*/
601 for (x = 0; x < sc->sc_nport; x++) {
602 /* sync with the manuals that start at 1 */
603 y = x + 1 + unit * (1 << SI_CARDSHIFT);
604 make_dev(&si_cdevsw, x, 0, 0, 0600, "ttyA%02d", y);
605 make_dev(&si_cdevsw, x + 0x00080, 0, 0, 0600, "cuaA%02d", y);
606 make_dev(&si_cdevsw, x + 0x10000, 0, 0, 0600, "ttyiA%02d", y);
607 make_dev(&si_cdevsw, x + 0x10080, 0, 0, 0600, "cuaiA%02d", y);
608 make_dev(&si_cdevsw, x + 0x20000, 0, 0, 0600, "ttylA%02d", y);
609 make_dev(&si_cdevsw, x + 0x20080, 0, 0, 0600, "cualA%02d", y);
611 make_dev(&si_cdevsw, 0x40000, 0, 0, 0600, "si_control");
616 siopen(dev_t dev, int flag, int mode, struct proc *p)
622 volatile struct si_channel *ccbp;
624 int mynor = minor(dev);
626 /* quickly let in /dev/si_control */
627 if (IS_CONTROLDEV(mynor)) {
628 if ((error = suser(p)))
633 card = SI_CARD(mynor);
634 sc = devclass_get_softc(si_devclass, card);
638 if (sc->sc_type == SIEMPTY) {
639 DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: type %s??\n",
640 card, sc->sc_typename));
644 port = SI_PORT(mynor);
645 if (port >= sc->sc_nport) {
646 DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: nports %d\n",
647 card, sc->sc_nport));
653 * We've now got a device, so start the poller.
655 if (init_finished == 0) {
656 timeout(si_poll, (caddr_t)0L, si_pollrate);
661 /* initial/lock device */
662 if (IS_STATE(mynor)) {
666 pp = sc->sc_ports + port;
667 tp = pp->sp_tty; /* the "real" tty */
669 ccbp = pp->sp_ccb; /* Find control block */
670 DPRINT((pp, DBG_ENTRY|DBG_OPEN, "siopen(%s,%x,%x,%x)\n",
671 devtoname(dev), flag, mode, p));
673 oldspl = spltty(); /* Keep others out */
677 while (pp->sp_state & SS_DTR_OFF) {
678 error = tsleep(&pp->sp_dtr_wait, TTIPRI|PCATCH, "sidtr", 0);
683 if (tp->t_state & TS_ISOPEN) {
685 * The device is open, so everything has been initialised.
688 if (IS_CALLOUT(mynor)) {
689 if (!pp->sp_active_out) {
694 if (pp->sp_active_out) {
695 if (flag & O_NONBLOCK) {
699 error = tsleep(&pp->sp_active_out,
700 TTIPRI|PCATCH, "sibi", 0);
706 if (tp->t_state & TS_XCLUDE &&
708 DPRINT((pp, DBG_OPEN|DBG_FAIL,
709 "already open and EXCLUSIVE set\n"));
715 * The device isn't open, so there are no conflicts.
716 * Initialize it. Avoid sleep... :-)
718 DPRINT((pp, DBG_OPEN, "first open\n"));
719 tp->t_oproc = si_start;
720 tp->t_stop = si_stop;
721 tp->t_param = siparam;
723 tp->t_termios = mynor & SI_CALLOUT_MASK
724 ? pp->sp_iout : pp->sp_iin;
726 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS);
728 ++pp->sp_wopeners; /* in case of sleep in siparam */
730 error = siparam(tp, &tp->t_termios);
735 /* XXX: we should goto_top if siparam slept */
737 /* set initial DCD state */
738 pp->sp_last_hi_ip = ccbp->hi_ip;
739 if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) {
740 (*linesw[tp->t_line].l_modem)(tp, 1);
744 /* whoops! we beat the close! */
745 if (pp->sp_state & SS_CLOSING) {
746 /* try and stop it from proceeding to bash the hardware */
747 pp->sp_state &= ~SS_CLOSING;
751 * Wait for DCD if necessary
753 if (!(tp->t_state & TS_CARR_ON) &&
754 !IS_CALLOUT(mynor) &&
755 !(tp->t_cflag & CLOCAL) &&
756 !(flag & O_NONBLOCK)) {
758 DPRINT((pp, DBG_OPEN, "sleeping for carrier\n"));
759 error = tsleep(TSA_CARR_ON(tp), TTIPRI|PCATCH, "sidcd", 0);
766 error = (*linesw[tp->t_line].l_open)(dev, tp);
767 si_disc_optim(tp, &tp->t_termios, pp);
768 if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor))
769 pp->sp_active_out = TRUE;
771 pp->sp_state |= SS_OPEN; /* made it! */
776 DPRINT((pp, DBG_OPEN, "leaving siopen\n"));
778 if (!(tp->t_state & TS_ISOPEN) && pp->sp_wopeners == 0)
785 siclose(dev_t dev, int flag, int mode, struct proc *p)
791 int mynor = minor(dev);
793 if (IS_SPECIAL(mynor))
798 pp = MINOR2PP(mynor);
801 DPRINT((pp, DBG_ENTRY|DBG_CLOSE, "siclose(%s,%x,%x,%x) sp_state:%x\n",
802 devtoname(dev), flag, mode, p, pp->sp_state));
804 /* did we sleep and loose a race? */
805 if (pp->sp_state & SS_CLOSING) {
806 /* error = ESOMETING? */
810 /* begin race detection.. */
811 pp->sp_state |= SS_CLOSING;
813 si_write_enable(pp, 0); /* block writes for ttywait() */
815 /* THIS MAY SLEEP IN TTYWAIT!!! */
816 (*linesw[tp->t_line].l_close)(tp, flag);
818 si_write_enable(pp, 1);
820 /* did we sleep and somebody started another open? */
821 if (!(pp->sp_state & SS_CLOSING)) {
822 /* error = ESOMETING? */
825 /* ok. we are now still on the right track.. nuke the hardware */
827 if (pp->sp_state & SS_LSTART) {
828 untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch);
829 pp->sp_state &= ~SS_LSTART;
832 si_stop(tp, FREAD | FWRITE);
836 pp->sp_state &= ~SS_OPEN;
839 DPRINT((pp, DBG_CLOSE|DBG_EXIT, "close done, returning\n"));
845 sihardclose(struct si_port *pp)
849 volatile struct si_channel *ccbp;
854 ccbp = pp->sp_ccb; /* Find control block */
855 if (tp->t_cflag & HUPCL ||
856 (!pp->sp_active_out &&
857 !(ccbp->hi_ip & IP_DCD) &&
858 !(pp->sp_iin.c_cflag && CLOCAL)) ||
859 !(tp->t_state & TS_ISOPEN)) {
861 (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS);
862 (void) si_command(pp, FCLOSE, SI_NOWAIT);
864 if (pp->sp_dtr_wait != 0) {
865 timeout(sidtrwakeup, pp, pp->sp_dtr_wait);
866 pp->sp_state |= SS_DTR_OFF;
870 pp->sp_active_out = FALSE;
871 wakeup((caddr_t)&pp->sp_active_out);
872 wakeup(TSA_CARR_ON(tp));
879 * called at splsoftclock()...
882 sidtrwakeup(void *chan)
889 pp = (struct si_port *)chan;
890 pp->sp_state &= ~SS_DTR_OFF;
891 wakeup(&pp->sp_dtr_wait);
897 siwrite(dev_t dev, struct uio *uio, int flag)
902 int mynor = minor(dev);
905 if (IS_SPECIAL(mynor)) {
906 DPRINT((0, DBG_ENTRY|DBG_FAIL|DBG_WRITE, "siwrite(CONTROLDEV!!)\n"));
909 pp = MINOR2PP(mynor);
911 DPRINT((pp, DBG_WRITE, "siwrite(%s,%x,%x)\n", devtoname(dev), uio, flag));
915 * If writes are currently blocked, wait on the "real" tty
917 while (pp->sp_state & SS_BLOCKWRITE) {
918 pp->sp_state |= SS_WAITWRITE;
919 DPRINT((pp, DBG_WRITE, "in siwrite, wait for SS_BLOCKWRITE to clear\n"));
920 if ((error = ttysleep(tp, (caddr_t)pp, TTOPRI|PCATCH,
921 "siwrite", tp->t_timeout))) {
922 if (error == EWOULDBLOCK)
928 error = (*linesw[tp->t_line].l_write)(tp, uio, flag);
936 siioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
941 int mynor = minor(dev);
944 #if defined(COMPAT_43)
949 if (IS_SI_IOCTL(cmd))
950 return(si_Sioctl(dev, cmd, data, flag, p));
952 pp = MINOR2PP(mynor);
955 DPRINT((pp, DBG_ENTRY|DBG_IOCTL, "siioctl(%s,%lx,%x,%x)\n",
956 devtoname(dev), cmd, data, flag));
957 if (IS_STATE(mynor)) {
960 switch (mynor & SI_STATE_MASK) {
961 case SI_INIT_STATE_MASK:
962 ct = IS_CALLOUT(mynor) ? &pp->sp_iout : &pp->sp_iin;
964 case SI_LOCK_STATE_MASK:
965 ct = IS_CALLOUT(mynor) ? &pp->sp_lout : &pp->sp_lin;
975 *ct = *(struct termios *)data;
978 *(struct termios *)data = *ct;
981 *(int *)data = TTYDISC;
984 bzero(data, sizeof(struct winsize));
991 * Do the old-style ioctl compat routines...
993 #if defined(COMPAT_43)
994 term = tp->t_termios;
996 error = ttsetcompat(tp, &cmd, data, &term);
1000 data = (caddr_t)&term;
1003 * Do the initial / lock state business
1005 if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) {
1007 struct termios *dt = (struct termios *)data;
1008 struct termios *lt = mynor & SI_CALLOUT_MASK
1009 ? &pp->sp_lout : &pp->sp_lin;
1011 dt->c_iflag = (tp->t_iflag & lt->c_iflag) |
1012 (dt->c_iflag & ~lt->c_iflag);
1013 dt->c_oflag = (tp->t_oflag & lt->c_oflag) |
1014 (dt->c_oflag & ~lt->c_oflag);
1015 dt->c_cflag = (tp->t_cflag & lt->c_cflag) |
1016 (dt->c_cflag & ~lt->c_cflag);
1017 dt->c_lflag = (tp->t_lflag & lt->c_lflag) |
1018 (dt->c_lflag & ~lt->c_lflag);
1019 for (cc = 0; cc < NCCS; ++cc)
1020 if (lt->c_cc[cc] != 0)
1021 dt->c_cc[cc] = tp->t_cc[cc];
1022 if (lt->c_ispeed != 0)
1023 dt->c_ispeed = tp->t_ispeed;
1024 if (lt->c_ospeed != 0)
1025 dt->c_ospeed = tp->t_ospeed;
1029 * Block user-level writes to give the ttywait()
1030 * a chance to completely drain for commands
1031 * that require the port to be in a quiescent state.
1040 blocked++; /* block writes for ttywait() and siparam() */
1041 si_write_enable(pp, 0);
1044 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
1045 if (error != ENOIOCTL)
1050 error = ttioctl(tp, cmd, data, flag);
1051 si_disc_optim(tp, &tp->t_termios, pp);
1052 if (error != ENOIOCTL) {
1060 si_command(pp, SBREAK, SI_WAIT);
1063 si_command(pp, EBREAK, SI_WAIT);
1066 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS);
1069 (void) si_modem(pp, SET, 0);
1072 (void) si_modem(pp, SET, *(int *)data);
1075 (void) si_modem(pp, BIS, *(int *)data);
1078 (void) si_modem(pp, BIC, *(int *)data);
1081 *(int *)data = si_modem(pp, GET, 0);
1084 /* must be root since the wait applies to following logins */
1087 pp->sp_dtr_wait = *(int *)data * hz / 100;
1090 *(int *)data = pp->sp_dtr_wait * 100 / hz;
1098 DPRINT((pp, DBG_IOCTL|DBG_EXIT, "siioctl ret %d\n", error));
1100 si_write_enable(pp, 1);
1105 * Handle the Specialix ioctls. All MUST be called via the CONTROL device
1108 si_Sioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
1110 struct si_softc *xsc;
1111 struct si_port *xpp;
1112 volatile struct si_reg *regp;
1114 struct si_pstat *sps;
1118 int mynor = minor(dev);
1120 DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,%lx,%x,%x)\n",
1121 devtoname(dev), cmd, data, flag));
1124 DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT));
1125 DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB));
1126 DPRINT((0, DBG_IOCTL, "TCSI_TTY=%x\n", TCSI_TTY));
1129 if (!IS_CONTROLDEV(mynor)) {
1130 DPRINT((0, DBG_IOCTL|DBG_FAIL, "not called from control device!\n"));
1134 oldspl = spltty(); /* better safe than sorry */
1138 #define SUCHECK if ((error = suser(p))) goto out
1156 * Check that a controller for this port exists
1159 /* may also be a struct si_pstat, a superset of si_tcsi */
1161 dp = (struct si_tcsi *)data;
1162 sps = (struct si_pstat *)data;
1164 xsc = devclass_get_softc(si_devclass, card); /* check.. */
1165 if (xsc == NULL || xsc->sc_type == SIEMPTY) {
1170 * And check that a port exists
1173 if (port < 0 || port >= xsc->sc_nport) {
1177 xpp = xsc->sc_ports + port;
1178 regp = (struct si_reg *)xsc->sc_maddr;
1188 xpp->sp_debug = DBG_ALL;
1189 DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n",
1190 (xpp->sp_debug&DBG_ALL)?"ON":"OFF"));
1197 case TCSISDBG_LEVEL:
1198 case TCSIGDBG_LEVEL:
1200 if (cmd == TCSIGDBG_LEVEL) {
1201 dp->tc_dbglvl = xpp->sp_debug;
1204 xpp->sp_debug = dp->tc_dbglvl;
1212 dp->tc_int = regp->rx_int_count;
1216 regp->rx_int_count = dp->tc_int;
1219 dp->tc_int = regp->int_count;
1223 regp->int_count = dp->tc_int;
1226 dp->tc_int = xpp->sp_ccb->hi_ip;
1228 /* these next three use a different structure */
1231 si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport));
1235 si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb));
1239 si_bcopy(xpp->sp_tty, &sps->tc_tty, sizeof(sps->tc_tty));
1247 return(error); /* success */
1251 * siparam() : Configure line params
1252 * called at spltty();
1253 * this may sleep, does not flush, nor wait for drain, nor block writes
1254 * caller must arrange this if it's important..
1257 siparam(struct tty *tp, struct termios *t)
1259 struct si_port *pp = TP2PP(tp);
1260 volatile struct si_channel *ccbp;
1261 int oldspl, cflag, iflag, oflag, lflag;
1262 int error = 0; /* shutup gcc */
1263 int ispeed = 0; /* shutup gcc */
1264 int ospeed = 0; /* shutup gcc */
1267 DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t));
1272 DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n",
1273 oflag, cflag, iflag, lflag));
1275 /* XXX - if Jet host and SXDC module, use extended baud rates */
1277 /* if not hung up.. */
1278 if (t->c_ospeed != 0) {
1279 /* translate baud rate to firmware values */
1280 ospeed = ttspeedtab(t->c_ospeed, bdrates);
1281 ispeed = t->c_ispeed ?
1282 ttspeedtab(t->c_ispeed, bdrates) : ospeed;
1284 /* enforce legit baud rate */
1285 if (ospeed < 0 || ispeed < 0)
1293 /* ========== set hi_break ========== */
1295 if (iflag & IGNBRK) /* Breaks */
1297 if (iflag & BRKINT) /* Interrupt on break? */
1299 if (iflag & PARMRK) /* Parity mark? */
1301 if (iflag & IGNPAR) /* Ignore chars with parity errors? */
1303 ccbp->hi_break = val;
1305 /* ========== set hi_csr ========== */
1306 /* if not hung up.. */
1307 if (t->c_ospeed != 0) {
1308 /* Set I/O speeds */
1309 val = (ispeed << 4) | ospeed;
1313 /* ========== set hi_mr2 ========== */
1315 if (cflag & CSTOPB) /* Stop bits */
1320 * Enable H/W RTS/CTS handshaking. The default TA/MTA is
1321 * a DCE, hence the reverse sense of RTS and CTS
1323 /* Output Flow - RTS must be raised before data can be sent */
1324 if (cflag & CCTS_OFLOW)
1329 /* ========== set hi_mr1 ========== */
1331 if (!(cflag & PARENB)) /* Parity */
1338 if ((cflag & CS8) == CS8) { /* 8 data bits? */
1340 } else if ((cflag & CS7) == CS7) { /* 7 data bits? */
1342 } else if ((cflag & CS6) == CS6) { /* 6 data bits? */
1344 } else { /* Must be 5 */
1348 * Enable H/W RTS/CTS handshaking. The default TA/MTA is
1349 * a DCE, hence the reverse sense of RTS and CTS
1351 /* Input Flow - CTS is raised when port is ready to receive data */
1352 if (cflag & CRTS_IFLOW)
1357 /* ========== set hi_mask ========== */
1359 if ((cflag & CS8) == CS8) { /* 8 data bits? */
1361 } else if ((cflag & CS7) == CS7) { /* 7 data bits? */
1363 } else if ((cflag & CS6) == CS6) { /* 6 data bits? */
1365 } else { /* Must be 5 */
1371 ccbp->hi_mask = val;
1373 /* ========== set hi_prtcl ========== */
1374 val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */
1384 ccbp->hi_prtcl = val;
1387 /* ========== set hi_{rx|tx}{on|off} ========== */
1388 /* XXX: the card TOTALLY shields us from the flow control... */
1389 ccbp->hi_txon = t->c_cc[VSTART];
1390 ccbp->hi_txoff = t->c_cc[VSTOP];
1392 ccbp->hi_rxon = t->c_cc[VSTART];
1393 ccbp->hi_rxoff = t->c_cc[VSTOP];
1395 /* ========== send settings to the card ========== */
1396 /* potential sleep here */
1397 if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */
1398 si_command(pp, LOPEN, SI_WAIT); /* open it */
1400 si_command(pp, CONFIG, SI_WAIT); /* change params */
1402 /* ========== set DTR etc ========== */
1403 /* Hangup if ospeed == 0 */
1404 if (t->c_ospeed == 0) {
1405 (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS);
1408 * If the previous speed was 0, may need to re-enable
1411 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS);
1414 DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x\n",
1415 ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break));
1422 * Enable or Disable the writes to this channel...
1423 * "state" -> enabled = 1; disabled = 0;
1426 si_write_enable(struct si_port *pp, int state)
1433 pp->sp_state &= ~SS_BLOCKWRITE;
1434 if (pp->sp_state & SS_WAITWRITE) {
1435 pp->sp_state &= ~SS_WAITWRITE;
1437 wakeup((caddr_t)pp);
1440 pp->sp_state |= SS_BLOCKWRITE;
1447 * Set/Get state of modem control lines.
1448 * Due to DCE-like behaviour of the adapter, some signals need translation:
1453 si_modem(struct si_port *pp, enum si_mctl cmd, int bits)
1455 volatile struct si_channel *ccbp;
1458 DPRINT((pp, DBG_ENTRY|DBG_MODEM, "si_modem(%x,%s,%x)\n", pp, si_mctl2str(cmd), bits));
1459 ccbp = pp->sp_ccb; /* Find channel address */
1464 if (x & IP_DCD) bits |= TIOCM_CAR;
1465 if (x & IP_DTR) bits |= TIOCM_DTR;
1466 if (x & IP_RTS) bits |= TIOCM_RTS;
1467 if (x & IP_RI) bits |= TIOCM_RI;
1470 ccbp->hi_op &= ~(OP_DSR|OP_CTS);
1474 if (bits & TIOCM_DTR)
1476 if (bits & TIOCM_RTS)
1481 if (bits & TIOCM_DTR)
1482 ccbp->hi_op &= ~OP_DSR;
1483 if (bits & TIOCM_RTS)
1484 ccbp->hi_op &= ~OP_CTS;
1490 * Handle change of modem state
1493 si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip)
1495 /* if a modem dev */
1496 if (hi_ip & IP_DCD) {
1497 if (!(pp->sp_last_hi_ip & IP_DCD)) {
1498 DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n",
1500 (void)(*linesw[tp->t_line].l_modem)(tp, 1);
1503 if (pp->sp_last_hi_ip & IP_DCD) {
1504 DPRINT((pp, DBG_INTR, "modem carr off\n"));
1505 if ((*linesw[tp->t_line].l_modem)(tp, 0))
1506 (void) si_modem(pp, SET, 0);
1509 pp->sp_last_hi_ip = hi_ip;
1514 * Poller to catch missed interrupts.
1516 * Note that the SYSV Specialix drivers poll at 100 times per second to get
1517 * better response. We could really use a "periodic" version timeout(). :-)
1521 si_poll(void *nothing)
1523 struct si_softc *sc;
1525 volatile struct si_reg *regp;
1527 int lost, oldspl, port;
1529 DPRINT((0, DBG_POLL, "si_poll()\n"));
1534 for (i = 0; i < si_numunits; i++) {
1535 sc = devclass_get_softc(si_devclass, i);
1536 if (sc == NULL || sc->sc_type == SIEMPTY)
1538 regp = (struct si_reg *)sc->sc_maddr;
1541 * See if there has been a pending interrupt for 2 seconds
1542 * or so. The test (int_scounter >= 200) won't correspond
1543 * to 2 seconds if int_count gets changed.
1545 if (regp->int_pending != 0) {
1546 if (regp->int_scounter >= 200 &&
1547 regp->initstat == 1) {
1548 printf("si%d: lost intr\n", i);
1552 regp->int_scounter = 0;
1556 * gripe about no input flow control..
1559 for (port = 0; port < sc->sc_nport; pp++, port++) {
1560 if (pp->sp_delta_overflows > 0) {
1561 printf("si%d: %d tty level buffer overflows\n",
1562 i, pp->sp_delta_overflows);
1563 pp->sp_delta_overflows = 0;
1567 if (lost || si_realpoll)
1568 si_intr(NULL); /* call intr with fake vector */
1572 timeout(si_poll, (caddr_t)0L, si_pollrate);
1574 #endif /* ifdef POLL */
1577 * The interrupt handler polls ALL ports on ALL adapters each time
1581 static BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */
1582 static BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */
1587 struct si_softc *sc;
1589 volatile struct si_channel *ccbp;
1591 volatile caddr_t maddr;
1593 int x, card, port, n, i, isopen;
1599 DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n"));
1605 * When we get an int we poll all the channels and do ALL pending
1606 * work, not just the first one we find. This allows all cards to
1607 * share the same vector.
1609 * XXX - But if we're sharing the vector with something that's NOT
1610 * a SI/XIO/SX card, we may be making more work for ourselves.
1612 for (card = 0; card < si_numunits; card++) {
1613 sc = devclass_get_softc(si_devclass, card);
1614 if (sc == NULL || sc->sc_type == SIEMPTY)
1618 * First, clear the interrupt
1620 switch(sc->sc_type) {
1622 maddr = sc->sc_maddr;
1623 ((volatile struct si_reg *)maddr)->int_pending = 0;
1624 /* flag nothing pending */
1625 *(maddr+SIINTCL) = 0x00; /* Set IRQ clear */
1626 *(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */
1629 maddr = sc->sc_maddr;
1630 ((volatile struct si_reg *)maddr)->int_pending = 0;
1631 *(maddr+SIPLIRQCLR) = 0x00;
1632 *(maddr+SIPLIRQCLR) = 0x10;
1635 maddr = sc->sc_maddr;
1636 ((volatile struct si_reg *)maddr)->int_pending = 0;
1637 *(maddr+SIPCIINTCL) = 0x0;
1639 case SIJETPCI: /* fall through to JETISA case */
1641 maddr = sc->sc_maddr;
1642 ((volatile struct si_reg *)maddr)->int_pending = 0;
1643 *(maddr+SIJETINTCL) = 0x0;
1646 maddr = sc->sc_maddr;
1647 ((volatile struct si_reg *)maddr)->int_pending = 0;
1648 (void)inb(sc->sc_iobase + 3);
1654 ((volatile struct si_reg *)maddr)->int_scounter = 0;
1659 for (pp = sc->sc_ports, port = 0; port < sc->sc_nport;
1665 * See if a command has completed ?
1667 if (ccbp->hi_stat != pp->sp_pend) {
1668 DPRINT((pp, DBG_INTR,
1669 "si_intr hi_stat = 0x%x, pend = %d\n",
1670 ccbp->hi_stat, pp->sp_pend));
1671 switch(pp->sp_pend) {
1678 pp->sp_pend = ccbp->hi_stat;
1679 /* sleeping in si_command */
1680 wakeup(&pp->sp_state);
1683 pp->sp_pend = ccbp->hi_stat;
1688 * Continue on if it's closed
1690 if (ccbp->hi_stat == IDLE_CLOSE) {
1695 * Do modem state change if not a local device
1697 si_modem_state(pp, tp, ccbp->hi_ip);
1700 * Check to see if we should 'receive' characters.
1702 if (tp->t_state & TS_CONNECTED &&
1703 tp->t_state & TS_ISOPEN)
1709 * Do input break processing
1711 if (ccbp->hi_state & ST_BREAK) {
1713 (*linesw[tp->t_line].l_rint)(TTY_BI, tp);
1715 ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */
1716 DPRINT((pp, DBG_INTR, "si_intr break\n"));
1720 * Do RX stuff - if not open then dump any characters.
1721 * XXX: This is VERY messy and needs to be cleaned up.
1723 * XXX: can we leave data in the host adapter buffer
1724 * when the clists are full? That may be dangerous
1725 * if the user cannot get an interrupt signal through.
1728 more_rx: /* XXX Sorry. the nesting was driving me bats! :-( */
1731 ccbp->hi_rxopos = ccbp->hi_rxipos;
1736 * If the tty input buffers are blocked, stop emptying
1737 * the incoming buffers and let the auto flow control
1740 if (tp->t_state & TS_TBLOCK) {
1745 * Process read characters if not skipped above
1747 op = ccbp->hi_rxopos;
1748 ip = ccbp->hi_rxipos;
1758 DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n",
1762 * Suck characters out of host card buffer into the
1763 * "input staging buffer" - so that we dont leave the
1764 * host card in limbo while we're possibly echoing
1765 * characters and possibly flushing input inside the
1766 * ldisc l_rint() routine.
1768 if (n <= SI_BUFFERSIZE - op) {
1770 DPRINT((pp, DBG_INTR, "\tsingle copy\n"));
1771 z = ccbp->hi_rxbuf + op;
1772 si_vbcopy(z, si_rxbuf, n);
1776 x = SI_BUFFERSIZE - op;
1778 DPRINT((pp, DBG_INTR, "\tdouble part 1 %d\n", x));
1779 z = ccbp->hi_rxbuf + op;
1780 si_vbcopy(z, si_rxbuf, x);
1782 DPRINT((pp, DBG_INTR, "\tdouble part 2 %d\n",
1785 si_vbcopy(z, si_rxbuf + x, n - x);
1790 /* clear collected characters from buffer */
1791 ccbp->hi_rxopos = op;
1793 DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n",
1798 * n = number of chars placed in si_rxbuf
1802 * Avoid the grotesquely inefficient lineswitch
1803 * routine (ttyinput) in "raw" mode. It usually
1804 * takes about 450 instructions (that's without
1805 * canonical processing or echo!). slinput is
1806 * reasonably fast (usually 40 instructions
1807 * plus call overhead).
1809 if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
1811 /* block if the driver supports it */
1812 if (tp->t_rawq.c_cc + n >= SI_I_HIGH_WATER &&
1813 (tp->t_cflag & CRTS_IFLOW ||
1814 tp->t_iflag & IXOFF) &&
1815 !(tp->t_state & TS_TBLOCK))
1822 pp->sp_delta_overflows +=
1823 b_to_q((char *)si_rxbuf, n, &tp->t_rawq);
1826 if (tp->t_state & TS_TTSTOP &&
1827 (tp->t_iflag & IXANY ||
1828 tp->t_cc[VSTART] == tp->t_cc[VSTOP])) {
1829 tp->t_state &= ~TS_TTSTOP;
1830 tp->t_lflag &= ~FLUSHO;
1835 * It'd be nice to not have to go through the
1836 * function call overhead for each char here.
1837 * It'd be nice to block input it, saving a
1838 * loop here and the call/return overhead.
1840 for(x = 0; x < n; x++) {
1842 if ((*linesw[tp->t_line].l_rint)(i, tp)
1844 pp->sp_delta_overflows++;
1847 * doesn't seem to be much point doing
1848 * this here.. this driver has no
1849 * softtty processing! ??
1851 if (pp->sp_hotchar && i == pp->sp_hotchar) {
1856 goto more_rx; /* try for more until RXbuf is empty */
1858 end_rx: /* XXX: Again, sorry about the gotos.. :-) */
1863 (*linesw[tp->t_line].l_start)(tp);
1865 } /* end of for (all ports on this controller) */
1866 } /* end of for (all controllers) */
1869 DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n"));
1873 * Nudge the transmitter...
1875 * XXX: I inherited some funny code here. It implies the host card only
1876 * interrupts when the transmit buffer reaches the low-water-mark, and does
1877 * not interrupt when it's actually hits empty. In some cases, we have
1878 * processes waiting for complete drain, and we need to simulate an interrupt
1879 * about when we think the buffer is going to be empty (and retry if not).
1880 * I really am not certain about this... I *need* the hardware manuals.
1883 si_start(struct tty *tp)
1886 volatile struct si_channel *ccbp;
1890 int oldspl, count, n, amount, buffer_full;
1897 DPRINT((pp, DBG_ENTRY|DBG_START,
1898 "si_start(%x) t_state %x sp_state %x t_outq.c_cc %d\n",
1899 tp, tp->t_state, pp->sp_state, qp->c_cc));
1901 if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP))
1907 count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos;
1908 DPRINT((pp, DBG_START, "count %d\n", (BYTE)count));
1910 while ((nchar = qp->c_cc) > 0) {
1911 if ((BYTE)count >= 255) {
1915 amount = min(nchar, (255 - (BYTE)count));
1916 ipos = (unsigned int)ccbp->hi_txipos;
1917 n = q_to_b(&tp->t_outq, si_txbuf, amount);
1918 /* will it fit in one lump? */
1919 if ((SI_BUFFERSIZE - ipos) >= n) {
1920 si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n);
1922 si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos],
1923 SI_BUFFERSIZE - ipos);
1924 si_bcopyv(si_txbuf + (SI_BUFFERSIZE - ipos),
1925 &ccbp->hi_txbuf[0], n - (SI_BUFFERSIZE - ipos));
1927 ccbp->hi_txipos += n;
1928 count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos;
1931 if (count != 0 && nchar == 0) {
1932 tp->t_state |= TS_BUSY;
1934 tp->t_state &= ~TS_BUSY;
1940 DPRINT((pp, DBG_START, "count %d, nchar %d, tp->t_state 0x%x\n",
1941 (BYTE)count, nchar, tp->t_state));
1943 if (tp->t_state & TS_BUSY)
1947 time = ttspeedtab(tp->t_ospeed, chartimes);
1951 time = nchar / time;
1955 DPRINT((pp, DBG_START,
1956 "bad char time value! %d\n", time));
1960 if ((pp->sp_state & (SS_LSTART|SS_INLSTART)) == SS_LSTART) {
1961 untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch);
1963 pp->sp_state |= SS_LSTART;
1965 DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time));
1966 pp->lstart_ch = timeout(si_lstart, (caddr_t)pp, time);
1971 DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n"));
1975 * Note: called at splsoftclock from the timeout code
1976 * This has to deal with two things... cause wakeups while waiting for
1977 * tty drains on last process exit, and call l_start at about the right
1978 * time for protocols like ppp.
1981 si_lstart(void *arg)
1983 struct si_port *pp = arg;
1987 DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n",
1992 if ((pp->sp_state & SS_OPEN) == 0 || (pp->sp_state & SS_LSTART) == 0) {
1996 pp->sp_state &= ~SS_LSTART;
1997 pp->sp_state |= SS_INLSTART;
2001 /* deal with the process exit case */
2004 /* nudge protocols - eg: ppp */
2005 (*linesw[tp->t_line].l_start)(tp);
2007 pp->sp_state &= ~SS_INLSTART;
2012 * Stop output on a line. called at spltty();
2015 si_stop(struct tty *tp, int rw)
2017 volatile struct si_channel *ccbp;
2023 DPRINT((TP2PP(tp), DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw));
2025 /* XXX: must check (rw & FWRITE | FREAD) etc flushing... */
2027 /* what level are we meant to be flushing anyway? */
2028 if (tp->t_state & TS_BUSY) {
2029 si_command(TP2PP(tp), WFLUSH, SI_NOWAIT);
2030 tp->t_state &= ~TS_BUSY;
2031 ttwwakeup(tp); /* Bruce???? */
2034 #if 1 /* XXX: this doesn't work right yet.. */
2035 /* XXX: this may have been failing because we used to call l_rint()
2036 * while we were looping based on these two counters. Now, we collect
2037 * the data and then loop stuffing it into l_rint(), making this
2038 * useless. Should we cause this to blow away the staging buffer?
2041 ccbp->hi_rxopos = ccbp->hi_rxipos;
2047 * Issue a command to the host card CPU.
2051 si_command(struct si_port *pp, int cmd, int waitflag)
2054 volatile struct si_channel *ccbp = pp->sp_ccb;
2057 DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%x,%d): hi_stat 0x%x\n",
2058 pp, cmd, waitflag, ccbp->hi_stat));
2060 oldspl = spltty(); /* Keep others out */
2062 /* wait until it's finished what it was doing.. */
2063 /* XXX: sits in IDLE_BREAK until something disturbs it or break
2065 while((x = ccbp->hi_stat) != IDLE_OPEN &&
2069 if (in_intr) { /* Prevent sleep in intr */
2070 DPRINT((pp, DBG_PARAM,
2071 "cmd intr collision - completing %d\trequested %d\n",
2075 } else if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH,
2081 /* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */
2083 /* if there was a pending command, cause a state-change wakeup */
2084 switch(pp->sp_pend) {
2091 wakeup(&pp->sp_state);
2097 pp->sp_pend = cmd; /* New command pending */
2098 ccbp->hi_stat = cmd; /* Post it */
2101 if (in_intr) { /* If in interrupt handler */
2102 DPRINT((pp, DBG_PARAM,
2103 "attempt to sleep in si_intr - cmd req %d\n",
2107 } else while(ccbp->hi_stat != IDLE_OPEN &&
2108 ccbp->hi_stat != IDLE_BREAK) {
2109 if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH,
2118 si_disc_optim(struct tty *tp, struct termios *t, struct si_port *pp)
2121 * XXX can skip a lot more cases if Smarts. Maybe
2122 * (IGNCR | ISTRIP | IXON) in c_iflag. But perhaps we
2123 * shouldn't skip if (TS_CNTTB | TS_LNCH) is set in t_state.
2125 if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) &&
2126 (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) &&
2127 (!(t->c_iflag & PARMRK) ||
2128 (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) &&
2129 !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) &&
2130 linesw[tp->t_line].l_rint == ttyinput)
2131 tp->t_state |= TS_CAN_BYPASS_L_RINT;
2133 tp->t_state &= ~TS_CAN_BYPASS_L_RINT;
2134 pp->sp_hotchar = linesw[tp->t_line].l_hotchar;
2135 DPRINT((pp, DBG_OPTIM, "bypass: %s, hotchar: %x\n",
2136 (tp->t_state & TS_CAN_BYPASS_L_RINT) ? "on" : "off",
2144 si_dprintf(struct si_port *pp, int flags, const char *fmt, ...)
2148 if ((pp == NULL && (si_debug&flags)) ||
2149 (pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) {
2151 printf("%ci%d(%d): ", 's',
2152 (int)SI_CARD(minor(pp->sp_tty->t_dev)),
2153 (int)SI_PORT(minor(pp->sp_tty->t_dev)));
2161 si_mctl2str(enum si_mctl cmd)
2179 si_modulename(int host_type, int uart_type)
2181 switch (host_type) {
2182 /* Z280 based cards */
2187 switch (uart_type) {
2194 /* T225 based hosts */
2197 switch (uart_type) {