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rc.c (50254) rc.c (51654)
1/*
2 * Copyright (C) 1995 by Pavel Antonov, Moscow, Russia.
3 * Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
1/*
2 * Copyright (C) 1995 by Pavel Antonov, Moscow, Russia.
3 * Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: head/sys/dev/rc/rc.c 51654 1999-09-25 16:21:39Z phk $
28 *
26 */
27
28/*
29 * SDL Communications Riscom/8 (based on Cirrus Logic CL-CD180) driver
30 *
31 */
32
33#include "rc.h"

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82 rcprobe, rcattach, "rc"
83};
84
85static d_open_t rcopen;
86static d_close_t rcclose;
87static d_read_t rcread;
88static d_write_t rcwrite;
89static d_ioctl_t rcioctl;
29 */
30
31/*
32 * SDL Communications Riscom/8 (based on Cirrus Logic CL-CD180) driver
33 *
34 */
35
36#include "rc.h"

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85 rcprobe, rcattach, "rc"
86};
87
88static d_open_t rcopen;
89static d_close_t rcclose;
90static d_read_t rcread;
91static d_write_t rcwrite;
92static d_ioctl_t rcioctl;
90static d_stop_t rcstop;
91static d_devtotty_t rcdevtotty;
92
93#define CDEV_MAJOR 63
94static struct cdevsw rc_cdevsw = {
95 /* open */ rcopen,
96 /* close */ rcclose,
97 /* read */ rcread,
98 /* write */ rcwrite,
99 /* ioctl */ rcioctl,
93
94#define CDEV_MAJOR 63
95static struct cdevsw rc_cdevsw = {
96 /* open */ rcopen,
97 /* close */ rcclose,
98 /* read */ rcread,
99 /* write */ rcwrite,
100 /* ioctl */ rcioctl,
100 /* stop */ rcstop,
101 /* stop */ nostop,
101 /* reset */ noreset,
102 /* reset */ noreset,
102 /* devtotty */ rcdevtotty,
103 /* poll */ ttpoll,
103 /* devtotty */ nodevtotty,
104 /* poll */ ttypoll,
104 /* mmap */ nommap,
105 /* strategy */ nostrategy,
106 /* name */ "rc",
107 /* parms */ noparms,
108 /* maj */ CDEV_MAJOR,
109 /* dump */ nodump,
110 /* psize */ nopsize,
111 /* flags */ D_TTY,

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177/* Static prototypes */
178static ointhand2_t rcintr;
179static void rc_hwreset __P((int, int, unsigned int));
180static int rc_test __P((int, int));
181static void rc_discard_output __P((struct rc_chans *));
182static void rc_hardclose __P((struct rc_chans *));
183static int rc_modctl __P((struct rc_chans *, int, int));
184static void rc_start __P((struct tty *));
105 /* mmap */ nommap,
106 /* strategy */ nostrategy,
107 /* name */ "rc",
108 /* parms */ noparms,
109 /* maj */ CDEV_MAJOR,
110 /* dump */ nodump,
111 /* psize */ nopsize,
112 /* flags */ D_TTY,

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178/* Static prototypes */
179static ointhand2_t rcintr;
180static void rc_hwreset __P((int, int, unsigned int));
181static int rc_test __P((int, int));
182static void rc_discard_output __P((struct rc_chans *));
183static void rc_hardclose __P((struct rc_chans *));
184static int rc_modctl __P((struct rc_chans *, int, int));
185static void rc_start __P((struct tty *));
186static void rc_stop __P((struct tty *, int rw));
185static int rc_param __P((struct tty *, struct termios *));
186static swihand_t rcpoll;
187static void rc_reinit __P((struct rc_softc *));
188#ifdef RCDEBUG
189static void printrcflags();
190#endif
191static timeout_t rc_dtrwakeup;
192static timeout_t rc_wakeup;

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677 if (rc_scheduled_event == 0)
678 break;
679 }
680 if (rc_scheduled_event >= LOTS_OF_EVENTS)
681 goto repeat;
682}
683
684static void
187static int rc_param __P((struct tty *, struct termios *));
188static swihand_t rcpoll;
189static void rc_reinit __P((struct rc_softc *));
190#ifdef RCDEBUG
191static void printrcflags();
192#endif
193static timeout_t rc_dtrwakeup;
194static timeout_t rc_wakeup;

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679 if (rc_scheduled_event == 0)
680 break;
681 }
682 if (rc_scheduled_event >= LOTS_OF_EVENTS)
683 goto repeat;
684}
685
686static void
685rcstop(tp, rw)
687rc_stop(tp, rw)
686 register struct tty *tp;
687 int rw;
688{
689 register struct rc_chans *rc = &rc_chans[GET_UNIT(tp->t_dev)];
690 u_char *tptr, *eptr;
691
692#ifdef RCDEBUG
688 register struct tty *tp;
689 int rw;
690{
691 register struct rc_chans *rc = &rc_chans[GET_UNIT(tp->t_dev)];
692 u_char *tptr, *eptr;
693
694#ifdef RCDEBUG
693 printf("rc%d/%d: rcstop %s%s\n", rc->rc_rcb->rcb_unit, rc->rc_chan,
695 printf("rc%d/%d: rc_stop %s%s\n", rc->rc_rcb->rcb_unit, rc->rc_chan,
694 (rw & FWRITE)?"FWRITE ":"", (rw & FREAD)?"FREAD":"");
695#endif
696 if (rw & FWRITE)
697 rc_discard_output(rc);
698 disable_intr();
699 if (rw & FREAD) {
700 rc->rc_flags &= ~RC_DORXFER;
701 eptr = rc->rc_iptr;

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727
728 unit = GET_UNIT(dev);
729 if (unit >= NRC * CD180_NCHAN)
730 return ENXIO;
731 if (rc_softc[unit / CD180_NCHAN].rcb_probed != RC_ATTACHED)
732 return ENXIO;
733 rc = &rc_chans[unit];
734 tp = rc->rc_tp;
696 (rw & FWRITE)?"FWRITE ":"", (rw & FREAD)?"FREAD":"");
697#endif
698 if (rw & FWRITE)
699 rc_discard_output(rc);
700 disable_intr();
701 if (rw & FREAD) {
702 rc->rc_flags &= ~RC_DORXFER;
703 eptr = rc->rc_iptr;

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729
730 unit = GET_UNIT(dev);
731 if (unit >= NRC * CD180_NCHAN)
732 return ENXIO;
733 if (rc_softc[unit / CD180_NCHAN].rcb_probed != RC_ATTACHED)
734 return ENXIO;
735 rc = &rc_chans[unit];
736 tp = rc->rc_tp;
737 dev->si_tty = tp;
735 nec = rc->rc_rcb->rcb_addr;
736#ifdef RCDEBUG
737 printf("rc%d/%d: rcopen: dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
738#endif
739 s = spltty();
740
741again:
742 while (rc->rc_flags & RC_DTR_OFF) {

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766 if (tp->t_state & TS_XCLUDE &&
767 suser(p)) {
768 error = EBUSY;
769 goto out;
770 }
771 } else {
772 tp->t_oproc = rc_start;
773 tp->t_param = rc_param;
738 nec = rc->rc_rcb->rcb_addr;
739#ifdef RCDEBUG
740 printf("rc%d/%d: rcopen: dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
741#endif
742 s = spltty();
743
744again:
745 while (rc->rc_flags & RC_DTR_OFF) {

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769 if (tp->t_state & TS_XCLUDE &&
770 suser(p)) {
771 error = EBUSY;
772 goto out;
773 }
774 } else {
775 tp->t_oproc = rc_start;
776 tp->t_param = rc_param;
777 tp->t_stop = rc_stop;
774 tp->t_dev = dev;
775
776 if (CALLOUT(dev))
777 tp->t_cflag |= CLOCAL;
778 else
779 tp->t_cflag &= ~CLOCAL;
780
781 error = rc_param(tp, &tp->t_termios);

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823 rc = &rc_chans[unit];
824 tp = rc->rc_tp;
825#ifdef RCDEBUG
826 printf("rc%d/%d: rcclose dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
827#endif
828 s = spltty();
829 (*linesw[tp->t_line].l_close)(tp, flag);
830 disc_optim(tp, &tp->t_termios, rc);
778 tp->t_dev = dev;
779
780 if (CALLOUT(dev))
781 tp->t_cflag |= CLOCAL;
782 else
783 tp->t_cflag &= ~CLOCAL;
784
785 error = rc_param(tp, &tp->t_termios);

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827 rc = &rc_chans[unit];
828 tp = rc->rc_tp;
829#ifdef RCDEBUG
830 printf("rc%d/%d: rcclose dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
831#endif
832 s = spltty();
833 (*linesw[tp->t_line].l_close)(tp, flag);
834 disc_optim(tp, &tp->t_termios, rc);
831 rcstop(tp, FREAD | FWRITE);
835 rc_stop(tp, FREAD | FWRITE);
832 rc_hardclose(rc);
833 ttyclose(tp);
834 splx(s);
835 return 0;
836}
837
838static void rc_hardclose(rc)
839register struct rc_chans *rc;

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1402 printf("rc%d/%d: msvr %02x ier %02x ccsr %02x\n",
1403 rc->rc_rcb->rcb_unit, rc->rc_chan,
1404 rcin(CD180_MSVR),
1405 rcin(CD180_IER),
1406 rcin(CD180_CCSR));
1407}
1408#endif /* RCDEBUG */
1409
836 rc_hardclose(rc);
837 ttyclose(tp);
838 splx(s);
839 return 0;
840}
841
842static void rc_hardclose(rc)
843register struct rc_chans *rc;

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1406 printf("rc%d/%d: msvr %02x ier %02x ccsr %02x\n",
1407 rc->rc_rcb->rcb_unit, rc->rc_chan,
1408 rcin(CD180_MSVR),
1409 rcin(CD180_IER),
1410 rcin(CD180_CCSR));
1411}
1412#endif /* RCDEBUG */
1413
1410static struct tty *
1411rcdevtotty(dev)
1412 dev_t dev;
1413{
1414 int unit;
1415
1416 unit = GET_UNIT(dev);
1417 if (unit >= NRC * CD180_NCHAN)
1418 return NULL;
1419 return (&rc_tty[unit]);
1420}
1421
1422static void
1423rc_dtrwakeup(chan)
1424 void *chan;
1425{
1426 struct rc_chans *rc;
1427
1428 rc = (struct rc_chans *)chan;
1429 rc->rc_flags &= ~RC_DTR_OFF;

--- 66 unchanged lines hidden --- 		1414static void
1415rc_dtrwakeup(chan)
1416 void *chan;
1417{
1418 struct rc_chans *rc;
1419
1420 rc = (struct rc_chans *)chan;
1421 rc->rc_flags &= ~RC_DTR_OFF;

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