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cy_isa.c (38303) cy_isa.c (38435)
1/*-
2 * cyclades cyclom-y serial driver
3 * Andrew Herbert <andrew@werple.apana.org.au>, 17 August 1993
4 *
5 * Copyright (c) 1993 Andrew Herbert.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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22 * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
1/*-
2 * cyclades cyclom-y serial driver
3 * Andrew Herbert <andrew@werple.apana.org.au>, 17 August 1993
4 *
5 * Copyright (c) 1993 Andrew Herbert.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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22 * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $Id: cy.c,v 1.67 1998/08/13 13:54:10 bde Exp $
30 * $Id: cy.c,v 1.68 1998/08/13 19:03:22 bde Exp $
31 */
32
33#include "opt_compat.h"
34#include "opt_devfs.h"
35
36#include "cy.h"
37
38/*

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148
149#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s)
150
151/* We encode the cyclom unit number (cyu) in spare bits in the IVR's. */
152#define CD1400_xIVR_CHAN_SHIFT 3
153#define CD1400_xIVR_CHAN 0x1F
154
155#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
31 */
32
33#include "opt_compat.h"
34#include "opt_devfs.h"
35
36#include "cy.h"
37
38/*

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148
149#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s)
150
151/* We encode the cyclom unit number (cyu) in spare bits in the IVR's. */
152#define CD1400_xIVR_CHAN_SHIFT 3
153#define CD1400_xIVR_CHAN 0x1F
154
155#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
156#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
157#define RS_IBUFSIZE 256
158
159#define CALLOUT_MASK 0x80
160#define CONTROL_MASK 0x60
161#define CONTROL_INIT_STATE 0x20
162#define CONTROL_LOCK_STATE 0x40
163#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev)))
164#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK)

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385 sioioctl, siostop, noreset, siodevtotty,
386 ttpoll, nommap, NULL, driver_name,
387 NULL, -1,
388};
389
390static int comconsole = -1;
391static speed_t comdefaultrate = TTYDEF_SPEED;
392static u_int com_events; /* input chars + weighted output completions */
156#define RS_IBUFSIZE 256
157
158#define CALLOUT_MASK 0x80
159#define CONTROL_MASK 0x60
160#define CONTROL_INIT_STATE 0x20
161#define CONTROL_LOCK_STATE 0x40
162#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev)))
163#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK)

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384 sioioctl, siostop, noreset, siodevtotty,
385 ttpoll, nommap, NULL, driver_name,
386 NULL, -1,
387};
388
389static int comconsole = -1;
390static speed_t comdefaultrate = TTYDEF_SPEED;
391static u_int com_events; /* input chars + weighted output completions */
393static bool_t siopoll_registered;
392static bool_t sio_registered;
394static int sio_timeout;
395static int sio_timeouts_until_log;
396static struct callout_handle sio_timeout_handle
397 = CALLOUT_HANDLE_INITIALIZER(&sio_timeout_handle);
398#if 0 /* XXX */
399static struct tty *sio_tty[NSIO];
400#else
401static struct tty sio_tty[NSIO];

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599 termioschars(&com->it_in);
600 com->it_in.c_ispeed = com->it_in.c_ospeed = comdefaultrate;
601 com->it_out = com->it_in;
602
603 s = spltty();
604 com_addr(unit) = com;
605 splx(s);
606
393static int sio_timeout;
394static int sio_timeouts_until_log;
395static struct callout_handle sio_timeout_handle
396 = CALLOUT_HANDLE_INITIALIZER(&sio_timeout_handle);
397#if 0 /* XXX */
398static struct tty *sio_tty[NSIO];
399#else
400static struct tty sio_tty[NSIO];

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598 termioschars(&com->it_in);
599 com->it_in.c_ispeed = com->it_in.c_ospeed = comdefaultrate;
600 com->it_out = com->it_in;
601
602 s = spltty();
603 com_addr(unit) = com;
604 splx(s);
605
607 dev = makedev(CDEV_MAJOR, 0);
608 cdevsw_add(&dev, &sio_cdevsw, NULL);
609#ifdef DEVFS
610 com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
611 unit, DV_CHR,
612 UID_ROOT, GID_WHEEL, 0600, "ttyc%r%r", adapter,
613 unit % CY_MAX_PORTS);
614 com->devfs_token_ttyi = devfs_add_devswf(&sio_cdevsw,
615 unit | CONTROL_INIT_STATE, DV_CHR,
616 UID_ROOT, GID_WHEEL, 0600, "ttyic%r%r", adapter,

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629 unit % CY_MAX_PORTS);
630 com->devfs_token_cual = devfs_add_devswf(&sio_cdevsw,
631 unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
632 UID_UUCP, GID_DIALER, 0660, "cualc%r%r", adapter,
633 unit % CY_MAX_PORTS);
634#endif
635 }
636 }
606#ifdef DEVFS
607 com->devfs_token_ttyd = devfs_add_devswf(&sio_cdevsw,
608 unit, DV_CHR,
609 UID_ROOT, GID_WHEEL, 0600, "ttyc%r%r", adapter,
610 unit % CY_MAX_PORTS);
611 com->devfs_token_ttyi = devfs_add_devswf(&sio_cdevsw,
612 unit | CONTROL_INIT_STATE, DV_CHR,
613 UID_ROOT, GID_WHEEL, 0600, "ttyic%r%r", adapter,

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626 unit % CY_MAX_PORTS);
627 com->devfs_token_cual = devfs_add_devswf(&sio_cdevsw,
628 unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
629 UID_UUCP, GID_DIALER, 0660, "cualc%r%r", adapter,
630 unit % CY_MAX_PORTS);
631#endif
632 }
633 }
637 if (!siopoll_registered) {
634 if (!sio_registered) {
635 dev = makedev(CDEV_MAJOR, 0);
636 cdevsw_add(&dev, &sio_cdevsw, NULL);
638 register_swi(SWI_TTY, siopoll);
637 register_swi(SWI_TTY, siopoll);
639 siopoll_registered = TRUE;
638 sio_registered = TRUE;
640 }
641
642 /* ensure an edge for the next interrupt */
643 cd_outb(cy_iobase, CY_CLEAR_INTR, cy_align, 0);
644
645 return (adapter);
646}
647

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716 * cases: to preempt sleeping callin opens if we are
717 * callout, and to complete a callin open after DCD rises.
718 */
719 tp->t_oproc = comstart;
720 tp->t_param = comparam;
721 tp->t_dev = dev;
722 tp->t_termios = mynor & CALLOUT_MASK
723 ? com->it_out : com->it_in;
639 }
640
641 /* ensure an edge for the next interrupt */
642 cd_outb(cy_iobase, CY_CLEAR_INTR, cy_align, 0);
643
644 return (adapter);
645}
646

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715 * cases: to preempt sleeping callin opens if we are
716 * callout, and to complete a callin open after DCD rises.
717 */
718 tp->t_oproc = comstart;
719 tp->t_param = comparam;
720 tp->t_dev = dev;
721 tp->t_termios = mynor & CALLOUT_MASK
722 ? com->it_out : com->it_in;
723 tp->t_ififosize = 2 * RS_IBUFSIZE;
724 tp->t_ispeedwat = (speed_t)-1;
725 tp->t_ospeedwat = (speed_t)-1;
724#if 0
725 (void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
726 com->poll = com->no_irq;
727 com->poll_output = com->loses_outints;
728#endif
729 ++com->wopeners;
730 iobase = com->iobase;
731

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754 */
755 error = comparam(tp, &tp->t_termios);
756 --com->wopeners;
757 if (error != 0)
758 goto out;
759 /*
760 * XXX we should goto open_top if comparam() slept.
761 */
726#if 0
727 (void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET);
728 com->poll = com->no_irq;
729 com->poll_output = com->loses_outints;
730#endif
731 ++com->wopeners;
732 iobase = com->iobase;
733

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756 */
757 error = comparam(tp, &tp->t_termios);
758 --com->wopeners;
759 if (error != 0)
760 goto out;
761 /*
762 * XXX we should goto open_top if comparam() slept.
763 */
762 ttsetwater(tp);
763#if 0
764 if (com->hasfifo) {
765 /*
766 * (Re)enable and drain fifos.
767 *
768 * Certain SMC chips cause problems if the fifos
769 * are enabled while input is ready. Turn off the
770 * fifo if necessary to clear the input. We test

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1670 /*
1671 * Avoid the grotesquely inefficient lineswitch routine
1672 * (ttyinput) in "raw" mode. It usually takes about 450
1673 * instructions (that's without canonical processing or echo!).
1674 * slinput is reasonably fast (usually 40 instructions plus
1675 * call overhead).
1676 */
1677 if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
764#if 0
765 if (com->hasfifo) {
766 /*
767 * (Re)enable and drain fifos.
768 *
769 * Certain SMC chips cause problems if the fifos
770 * are enabled while input is ready. Turn off the
771 * fifo if necessary to clear the input. We test

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1671 /*
1672 * Avoid the grotesquely inefficient lineswitch routine
1673 * (ttyinput) in "raw" mode. It usually takes about 450
1674 * instructions (that's without canonical processing or echo!).
1675 * slinput is reasonably fast (usually 40 instructions plus
1676 * call overhead).
1677 */
1678 if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
1678 if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER
1679 if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
1679 && (com->state & CS_RTS_IFLOW
1680 || tp->t_iflag & IXOFF)
1681 && !(tp->t_state & TS_TBLOCK))
1682 ttyblock(tp);
1683 tk_nin += incc;
1684 tk_rawcc += incc;
1685 tp->t_rawcc += incc;
1686 com->delta_error_counts[CE_TTY_BUF_OVERFLOW]

--- 928 unchanged lines hidden --- 		1680 && (com->state & CS_RTS_IFLOW
1681 || tp->t_iflag & IXOFF)
1682 && !(tp->t_state & TS_TBLOCK))
1683 ttyblock(tp);
1684 tk_nin += incc;
1685 tk_rawcc += incc;
1686 tp->t_rawcc += incc;
1687 com->delta_error_counts[CE_TTY_BUF_OVERFLOW]

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