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freebsd-nq/sys/dev/si/si.c
Pedro F. Giffuni 453130d9bf sys/dev: minor spelling fixes. 
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00

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/*-
* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
*
* Copyright (C) 1990, 1992, 1998 Specialix International,
* Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
* Copyright (C) 2000, Peter Wemm <peter@netplex.com.au>
*
* Originally derived from: SunOS 4.x version
* Ported from BSDI version to FreeBSD by Peter Wemm.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notices, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notices, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Andy Rutter of
* Advanced Methods and Tools Ltd. based on original information
* from Specialix International.
* 4. Neither the name of Advanced Methods and Tools, nor Specialix
* International may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHORS BE LIABLE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef lint
__IDSTRING(si_copyright1, "@(#) Copyright (C) Specialix International, 1990,1992,1998");
__IDSTRING(si_copyright2, "@(#) Copyright (C) Andy Rutter 1993");
__IDSTRING(si_copyright3, "@(#) Copyright (C) Peter Wemm 2000");
#endif /* not lint */
#include "opt_compat.h"
#include "opt_debug_si.h"
#include "opt_eisa.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/serial.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/sysctl.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/stdarg.h>
#include <dev/si/sireg.h>
#include <dev/si/sivar.h>
#include <dev/si/si.h>
/*
* This device driver is designed to interface the Specialix International
* SI, XIO and SX range of serial multiplexor cards to FreeBSD on an ISA,
* EISA or PCI bus machine.
*
* The controller is interfaced to the host via dual port RAM
* and an interrupt.
*
* The code for the Host 1 (very old ISA cards) has not been tested.
*/
#undef POLL /* turn on poller to scan for lost interrupts */
#if 0
#define REALPOLL /* on each poll, scan for work regardless */
#endif
#define POLLHZ (hz/10) /* 10 times per second */
#define SI_I_HIGH_WATER (TTYHOG - 2 * SI_BUFFERSIZE)
#define INT_COUNT 25000 /* max of 125 ints per second */
#define JET_INT_COUNT 100 /* max of 100 ints per second */
#define RXINT_COUNT 1 /* one rxint per 10 milliseconds */
static void si_command(struct si_port *, int, int);
static int si_Sioctl(struct cdev *, u_long, caddr_t, int, struct thread *);
/* static void si_stop(struct tty *, int); */
#if 0
static timeout_t si_lstart;
#endif
static tsw_outwakeup_t si_start;
static tsw_ioctl_t siioctl;
static tsw_close_t siclose;
static tsw_modem_t simodem;
static tsw_open_t siopen;
static tsw_param_t siparam;
static void si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip);
static char * si_modulename(int host_type, int uart_type);
static struct cdevsw si_Scdevsw = {
.d_version = D_VERSION,
.d_ioctl = si_Sioctl,
.d_name = "si",
.d_flags = D_TTY | D_NEEDGIANT,
};
static int si_Nports;
static int si_Nmodules;
static int si_debug;
SYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RWTUN, &si_debug, 0, "");
static int si_numunits;
devclass_t si_devclass;
struct si_speedtab {
int sp_speed; /* Speed. */
int sp_code; /* Code. */
};
#ifndef B2000 /* not standard, but the hardware knows it. */
# define B2000 2000
#endif
static struct si_speedtab bdrates[] = {
{ B75, CLK75, }, /* 0x0 */
{ B110, CLK110, }, /* 0x1 */
{ B150, CLK150, }, /* 0x3 */
{ B300, CLK300, }, /* 0x4 */
{ B600, CLK600, }, /* 0x5 */
{ B1200, CLK1200, }, /* 0x6 */
{ B2000, CLK2000, }, /* 0x7 */
{ B2400, CLK2400, }, /* 0x8 */
{ B4800, CLK4800, }, /* 0x9 */
{ B9600, CLK9600, }, /* 0xb */
{ B19200, CLK19200, }, /* 0xc */
{ B38400, CLK38400, }, /* 0x2 (out of order!) */
{ B57600, CLK57600, }, /* 0xd */
{ B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */
{ -1, -1 },
};
#ifdef POLL
static int si_pollrate; /* in addition to irq */
static int si_realpoll = 0; /* poll HW on timer */
SYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, "");
SYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, "");
static int init_finished = 0;
static void si_poll(void *);
#endif
/*
* Array of adapter types and the corresponding RAM size. The order of
* entries here MUST match the ordinal of the adapter type.
*/
static const char *si_type[] = {
"EMPTY",
"SIHOST",
"SIMCA", /* FreeBSD does not support Microchannel */
"SIHOST2",
"SIEISA",
"SIPCI",
"SXPCI",
"SXISA",
};
#ifdef SI_DEBUG
static char *
si_cmdname(int cmd)
{
static char buf[32];
switch (cmd) {
case IDLE_OPEN: return("IDLE_OPEN");
case LOPEN: return("LOPEN");
case MOPEN: return("MOPEN");
case MPEND: return("MPEND");
case CONFIG: return("CONFIG");
case CLOSE: return("CLOSE");
case SBREAK: return("SBREAK");
case EBREAK: return("EBREAK");
case IDLE_CLOSE: return("IDLE_CLOSE");
case IDLE_BREAK: return("IDLE_BREAK");
case FCLOSE: return("FCLOSE");
case RESUME: return("RESUME");
case WFLUSH: return("WFLUSH");
case RFLUSH: return("RFLUSH");
default:
sprintf(buf, "?cmd:0x%x?", cmd);
return (buf);
}
}
#endif
/*
* We have to make an 8 bit version of bcopy, since some cards can't
* deal with 32 bit I/O
*/
static void __inline
si_bcopy(const void *src, void *dst, size_t len)
{
u_char *d;
const u_char *s;
d = dst;
s = src;
while (len--)
*d++ = *s++;
}
static void __inline
si_vbcopy(const volatile void *src, void *dst, size_t len)
{
u_char *d;
const volatile u_char *s;
d = dst;
s = src;
while (len--)
*d++ = *s++;
}
static void __inline
si_bcopyv(const void *src, volatile void *dst, size_t len)
{
volatile u_char *d;
const u_char *s;
d = dst;
s = src;
while (len--)
*d++ = *s++;
}
static int
si_speedtab(int speed, struct si_speedtab *table)
{
for ( ; table->sp_speed != -1; table++)
if (table->sp_speed == speed)
return (table->sp_code);
return (-1);
}
static struct ttydevsw si_tty_class = {
.tsw_flags = TF_INITLOCK|TF_CALLOUT,
.tsw_open = siopen,
.tsw_close = siclose,
.tsw_outwakeup = si_start,
/* .tsw_stop = si_stop */
.tsw_ioctl = siioctl,
.tsw_param = siparam,
.tsw_modem = simodem,
};
/*
* Attach the device. Initialize the card.
*/
int
siattach(device_t dev)
{
int unit;
struct si_softc *sc;
struct si_port *pp;
struct tty *tp;
volatile struct si_channel *ccbp;
volatile struct si_reg *regp;
volatile caddr_t maddr;
struct si_module *modp;
int nmodule, nport, x, y;
int uart_type;
sc = device_get_softc(dev);
unit = device_get_unit(dev);
sc->sc_typename = si_type[sc->sc_type];
if (si_numunits < unit + 1)
si_numunits = unit + 1;
DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit));
#ifdef POLL
if (si_pollrate == 0) {
si_pollrate = POLLHZ; /* in addition to irq */
#ifdef REALPOLL
si_realpoll = 1; /* scan always */
#endif
}
#endif
DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit,
sc->sc_typename, sc->sc_paddr, sc->sc_maddr));
sc->sc_ports = NULL; /* mark as uninitialised */
maddr = sc->sc_maddr;
/* Stop the CPU first so it won't stomp around while we load */
switch (sc->sc_type) {
#ifdef DEV_EISA
case SIEISA:
outb(sc->sc_iobase + 2, sc->sc_irq << 4);
#endif
break;
case SIPCI:
*(maddr+SIPCIRESET) = 0;
break;
case SIJETPCI: /* fall through to JET ISA */
case SIJETISA:
*(maddr+SIJETCONFIG) = 0;
break;
case SIHOST2:
*(maddr+SIPLRESET) = 0;
break;
case SIHOST:
*(maddr+SIRESET) = 0;
break;
default: /* this should never happen */
printf("si%d: unsupported configuration\n", unit);
return EINVAL;
break;
}
/* OK, now lets download the download code */
if (SI_ISJET(sc->sc_type)) {
DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n",
unit, si3_t225_dsize));
si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr,
si3_t225_dsize);
DPRINT((0, DBG_DOWNLOAD,
"si%d: jet_bootstrap: nbytes %d -> %x\n",
unit, si3_t225_bsize, si3_t225_bootloadaddr));
si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr,
si3_t225_bsize);
} else {
DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n",
unit, si2_z280_dsize));
si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr,
si2_z280_dsize);
}
/* Now start the CPU */
switch (sc->sc_type) {
#ifdef DEV_EISA
case SIEISA:
/* modify the download code to tell it that it's on an EISA */
*(maddr + 0x42) = 1;
outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4);
(void)inb(sc->sc_iobase + 3); /* reset interrupt */
break;
#endif
case SIPCI:
/* modify the download code to tell it that it's on a PCI */
*(maddr+0x42) = 1;
*(maddr+SIPCIRESET) = 1;
*(maddr+SIPCIINTCL) = 0;
break;
case SIJETPCI:
*(maddr+SIJETRESET) = 0;
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN;
break;
case SIJETISA:
*(maddr+SIJETRESET) = 0;
switch (sc->sc_irq) {
case 9:
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90;
break;
case 10:
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0;
break;
case 11:
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0;
break;
case 12:
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0;
break;
case 15:
*(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0;
break;
}
break;
case SIHOST:
*(maddr+SIRESET_CL) = 0;
*(maddr+SIINTCL_CL) = 0;
break;
case SIHOST2:
*(maddr+SIPLRESET) = 0x10;
switch (sc->sc_irq) {
case 11:
*(maddr+SIPLIRQ11) = 0x10;
break;
case 12:
*(maddr+SIPLIRQ12) = 0x10;
break;
case 15:
*(maddr+SIPLIRQ15) = 0x10;
break;
}
*(maddr+SIPLIRQCLR) = 0x10;
break;
default: /* this should _REALLY_ never happen */
printf("si%d: Uh, it was supported a second ago...\n", unit);
return EINVAL;
}
DELAY(1000000); /* wait around for a second */
regp = (struct si_reg *)maddr;
y = 0;
/* wait max of 5 sec for init OK */
while (regp->initstat == 0 && y++ < 10) {
DELAY(500000);
}
switch (regp->initstat) {
case 0:
printf("si%d: startup timeout - aborting\n", unit);
sc->sc_type = SIEMPTY;
return EINVAL;
case 1:
if (SI_ISJET(sc->sc_type)) {
/* set throttle to 100 times per second */
regp->int_count = JET_INT_COUNT;
/* rx_intr_count is a NOP in Jet */
} else {
/* set throttle to 125 times per second */
regp->int_count = INT_COUNT;
/* rx intr max of 25 times per second */
regp->rx_int_count = RXINT_COUNT;
}
regp->int_pending = 0; /* no intr pending */
regp->int_scounter = 0; /* reset counter */
break;
case 0xff:
/*
* No modules found, so give up on this one.
*/
printf("si%d: %s - no ports found\n", unit,
si_type[sc->sc_type]);
return 0;
default:
printf("si%d: download code version error - initstat %x\n",
unit, regp->initstat);
return EINVAL;
}
/*
* First time around the ports just count them in order
* to allocate some memory.
*/
nport = 0;
modp = (struct si_module *)(maddr + 0x80);
for (;;) {
DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp));
switch (modp->sm_type) {
case TA4:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found old TA4 module, 4 ports\n",
unit));
x = 4;
break;
case TA8:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found old TA8 module, 8 ports\n",
unit));
x = 8;
break;
case TA4_ASIC:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found ASIC TA4 module, 4 ports\n",
unit));
x = 4;
break;
case TA8_ASIC:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found ASIC TA8 module, 8 ports\n",
unit));
x = 8;
break;
case MTA:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found CD1400 module, 8 ports\n",
unit));
x = 8;
break;
case SXDC:
DPRINT((0, DBG_DOWNLOAD,
"si%d: Found SXDC module, 8 ports\n",
unit));
x = 8;
break;
default:
printf("si%d: unknown module type %d\n",
unit, modp->sm_type);
goto try_next;
}
/* this was limited in firmware and is also a driver issue */
if ((nport + x) > SI_MAXPORTPERCARD) {
printf("si%d: extra ports ignored\n", unit);
goto try_next;
}
nport += x;
si_Nports += x;
si_Nmodules++;
try_next:
if (modp->sm_next == 0)
break;
modp = (struct si_module *)
(maddr + (unsigned)(modp->sm_next & 0x7fff));
}
sc->sc_ports = (struct si_port *)malloc(sizeof(struct si_port) * nport,
M_DEVBUF, M_NOWAIT | M_ZERO);
if (sc->sc_ports == 0) {
printf("si%d: fail to malloc memory for port structs\n",
unit);
return EINVAL;
}
sc->sc_nport = nport;
/*
* Scan round the ports again, this time initialising.
*/
pp = sc->sc_ports;
nmodule = 0;
modp = (struct si_module *)(maddr + 0x80);
uart_type = 1000; /* arbitrary, > uchar_max */
for (;;) {
switch (modp->sm_type) {
case TA4:
nport = 4;
break;
case TA8:
nport = 8;
break;
case TA4_ASIC:
nport = 4;
break;
case TA8_ASIC:
nport = 8;
break;
case MTA:
nport = 8;
break;
case SXDC:
nport = 8;
break;
default:
goto try_next2;
}
nmodule++;
ccbp = (struct si_channel *)((char *)modp + 0x100);
if (uart_type == 1000)
uart_type = ccbp->type;
else if (uart_type != ccbp->type)
printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n",
unit, nmodule,
ccbp->type, si_modulename(sc->sc_type, ccbp->type),
uart_type, si_modulename(sc->sc_type, uart_type));
for (x = 0; x < nport; x++, pp++, ccbp++) {
pp->sp_ccb = ccbp; /* save the address */
pp->sp_pend = IDLE_CLOSE;
pp->sp_state = 0; /* internal flag */
#ifdef SI_DEBUG
sprintf(pp->sp_name, "si%r%r", unit,
(int)(pp - sc->sc_ports));
#endif
tp = pp->sp_tty = tty_alloc_mutex(&si_tty_class, pp, &Giant);
tty_makedev(tp, NULL, "A%r%r", unit, (int)(pp - sc->sc_ports));
}
try_next2:
if (modp->sm_next == 0) {
printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n",
unit,
sc->sc_typename,
sc->sc_nport,
nmodule,
uart_type,
si_modulename(sc->sc_type, uart_type));
break;
}
modp = (struct si_module *)
(maddr + (unsigned)(modp->sm_next & 0x7fff));
}
if (unit == 0)
make_dev(&si_Scdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
"si_control");
return (0);
}
static int
siopen(struct tty *tp)
{
DPRINT((0, DBG_ENTRY|DBG_OPEN, "siopen()\n"));
mtx_assert(&Giant, MA_OWNED);
#ifdef POLL
/*
* We've now got a device, so start the poller.
*/
if (init_finished == 0) {
timeout(si_poll, (caddr_t)0L, si_pollrate);
init_finished = 1;
}
#endif
DPRINT((0, DBG_EXIT|DBG_OPEN, "siopen() finished\n"));
return(0);
}
static void
siclose(struct tty *tp)
{
struct si_port *pp;
DPRINT((0, DBG_ENTRY|DBG_CLOSE, "siclose()\n"));
mtx_assert(&Giant, MA_OWNED);
pp = tty_softc(tp);
(void) si_command(pp, FCLOSE, SI_WAIT);
DPRINT((0, DBG_EXIT|DBG_CLOSE, "siclose() finished\n"));
}
static int
siioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
{
struct si_port *pp;
DPRINT((0, DBG_ENTRY|DBG_IOCTL, "siioctl(0x%lx,0x%x)\n", cmd, data));
mtx_assert(&Giant, MA_OWNED);
pp = tty_softc(tp);
switch (cmd) {
case TIOCSBRK:
si_command(pp, SBREAK, SI_WAIT);
return (0);
case TIOCCBRK:
si_command(pp, EBREAK, SI_WAIT);
return (0);
}
return (ENOIOCTL); /* Let the common tty ioctl handler do it */
}
/*
* Handle the Specialix ioctls on the control dev.
*/
static int
si_Sioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
struct si_softc *xsc;
struct si_port *xpp;
volatile struct si_reg *regp;
struct si_tcsi *dp;
struct si_pstat *sps;
int *ip, error = 0;
int oldspl;
int card, port;
DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,0x%lx,0x%x)\n",
devtoname(dev), cmd, data));
mtx_assert(&Giant, MA_OWNED);
#if 1
DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT));
DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB));
#endif
oldspl = spltty(); /* better safe than sorry */
ip = (int *)data;
#define SUCHECK if ((error = priv_check(td, PRIV_DRIVER))) goto out
switch (cmd) {
case TCSIPORTS:
*ip = si_Nports;
goto out;
case TCSIMODULES:
*ip = si_Nmodules;
goto out;
case TCSISDBG_ALL:
SUCHECK;
si_debug = *ip;
goto out;
case TCSIGDBG_ALL:
*ip = si_debug;
goto out;
default:
/*
* Check that a controller for this port exists
*/
/* may also be a struct si_pstat, a superset of si_tcsi */
dp = (struct si_tcsi *)data;
sps = (struct si_pstat *)data;
card = dp->tc_card;
xsc = devclass_get_softc(si_devclass, card); /* check.. */
if (xsc == NULL || xsc->sc_type == SIEMPTY) {
error = ENOENT;
goto out;
}
/*
* And check that a port exists
*/
port = dp->tc_port;
if (port < 0 || port >= xsc->sc_nport) {
error = ENOENT;
goto out;
}
xpp = xsc->sc_ports + port;
regp = (struct si_reg *)xsc->sc_maddr;
}
switch (cmd) {
case TCSIDEBUG:
#ifdef SI_DEBUG
SUCHECK;
if (xpp->sp_debug)
xpp->sp_debug = 0;
else {
xpp->sp_debug = DBG_ALL;
DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n",
(xpp->sp_debug&DBG_ALL)?"ON":"OFF"));
}
break;
#else
error = ENODEV;
goto out;
#endif
case TCSISDBG_LEVEL:
case TCSIGDBG_LEVEL:
#ifdef SI_DEBUG
if (cmd == TCSIGDBG_LEVEL) {
dp->tc_dbglvl = xpp->sp_debug;
} else {
SUCHECK;
xpp->sp_debug = dp->tc_dbglvl;
}
break;
#else
error = ENODEV;
goto out;
#endif
case TCSIGRXIT:
dp->tc_int = regp->rx_int_count;
break;
case TCSIRXIT:
SUCHECK;
regp->rx_int_count = dp->tc_int;
break;
case TCSIGIT:
dp->tc_int = regp->int_count;
break;
case TCSIIT:
SUCHECK;
regp->int_count = dp->tc_int;
break;
case TCSISTATE:
dp->tc_int = xpp->sp_ccb->hi_ip;
break;
/* these next three use a different structure */
case TCSI_PORT:
SUCHECK;
si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport));
break;
case TCSI_CCB:
SUCHECK;
si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb));
break;
default:
error = EINVAL;
goto out;
}
out:
splx(oldspl);
return(error); /* success */
}
/*
* siparam() : Configure line params
* called at spltty();
* this may sleep, does not flush, nor wait for drain, nor block writes
* caller must arrange this if it's important..
*/
static int
siparam(struct tty *tp, struct termios *t)
{
struct si_port *pp = tty_softc(tp);
volatile struct si_channel *ccbp;
int oldspl, cflag, iflag, oflag, lflag;
int error = 0; /* shutup gcc */
int ispeed = 0; /* shutup gcc */
int ospeed = 0; /* shutup gcc */
BYTE val;
DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t));
mtx_assert(&Giant, MA_OWNED);
cflag = t->c_cflag;
iflag = t->c_iflag;
oflag = t->c_oflag;
lflag = t->c_lflag;
DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n",
oflag, cflag, iflag, lflag));
/* XXX - if Jet host and SXDC module, use extended baud rates */
/* if not hung up.. */
if (t->c_ospeed != 0) {
/* translate baud rate to firmware values */
ospeed = si_speedtab(t->c_ospeed, bdrates);
ispeed = t->c_ispeed ?
si_speedtab(t->c_ispeed, bdrates) : ospeed;
/* enforce legit baud rate */
if (ospeed < 0 || ispeed < 0)
return (EINVAL);
}
oldspl = spltty();
ccbp = pp->sp_ccb;
/* ========== set hi_break ========== */
val = 0;
if (iflag & IGNBRK) /* Breaks */
val |= BR_IGN;
if (iflag & BRKINT) /* Interrupt on break? */
val |= BR_INT;
if (iflag & PARMRK) /* Parity mark? */
val |= BR_PARMRK;
if (iflag & IGNPAR) /* Ignore chars with parity errors? */
val |= BR_PARIGN;
ccbp->hi_break = val;
/* ========== set hi_csr ========== */
/* if not hung up.. */
if (t->c_ospeed != 0) {
/* Set I/O speeds */
val = (ispeed << 4) | ospeed;
}
ccbp->hi_csr = val;
/* ========== set hi_mr2 ========== */
val = 0;
if (cflag & CSTOPB) /* Stop bits */
val |= MR2_2_STOP;
else
val |= MR2_1_STOP;
/*
* Enable H/W RTS/CTS handshaking. The default TA/MTA is
* a DCE, hence the reverse sense of RTS and CTS
*/
/* Output Flow - RTS must be raised before data can be sent */
if (cflag & CCTS_OFLOW)
val |= MR2_RTSCONT;
ccbp->hi_mr2 = val;
/* ========== set hi_mr1 ========== */
val = 0;
if (!(cflag & PARENB)) /* Parity */
val |= MR1_NONE;
else
val |= MR1_WITH;
if (cflag & PARODD)
val |= MR1_ODD;
if ((cflag & CS8) == CS8) /* 8 data bits? */
val |= MR1_8_BITS;
else if ((cflag & CS7) == CS7) /* 7 data bits? */
val |= MR1_7_BITS;
else if ((cflag & CS6) == CS6) /* 6 data bits? */
val |= MR1_6_BITS;
else /* Must be 5 */
val |= MR1_5_BITS;
/*
* Enable H/W RTS/CTS handshaking. The default TA/MTA is
* a DCE, hence the reverse sense of RTS and CTS
*/
/* Input Flow - CTS is raised when port is ready to receive data */
if (cflag & CRTS_IFLOW)
val |= MR1_CTSCONT;
ccbp->hi_mr1 = val;
/* ========== set hi_mask ========== */
val = 0xff;
if ((cflag & CS8) == CS8) { /* 8 data bits? */
val &= 0xFF;
} else if ((cflag & CS7) == CS7) { /* 7 data bits? */
val &= 0x7F;
} else if ((cflag & CS6) == CS6) { /* 6 data bits? */
val &= 0x3F;
} else { /* Must be 5 */
val &= 0x1F;
}
if (iflag & ISTRIP)
val &= 0x7F;
ccbp->hi_mask = val;
/* ========== set hi_prtcl ========== */
val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */
if (iflag & IXANY)
val |= SP_TANY;
if (iflag & IXON)
val |= SP_TXEN;
if (iflag & IXOFF)
val |= SP_RXEN;
if (iflag & INPCK)
val |= SP_PAEN;
ccbp->hi_prtcl = val;
/* ========== set hi_{rx|tx}{on|off} ========== */
/* XXX: the card TOTALLY shields us from the flow control... */
ccbp->hi_txon = t->c_cc[VSTART];
ccbp->hi_txoff = t->c_cc[VSTOP];
ccbp->hi_rxon = t->c_cc[VSTART];
ccbp->hi_rxoff = t->c_cc[VSTOP];
/* ========== send settings to the card ========== */
/* potential sleep here */
if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */
si_command(pp, LOPEN, SI_WAIT); /* open it */
else
si_command(pp, CONFIG, SI_WAIT); /* change params */
/* ========== set DTR etc ========== */
/* Hangup if ospeed == 0 */
if (t->c_ospeed == 0) {
(void) simodem(tp, 0, SER_DTR | SER_RTS);
} else {
/*
* If the previous speed was 0, may need to re-enable
* the modem signals
*/
(void) simodem(tp, SER_DTR | SER_RTS, 0);
}
DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x HI_CSR %x\n",
ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break, ccbp->hi_csr));
splx(oldspl);
return(error);
}
/*
* Set/Get state of modem control lines.
* Due to DCE-like behaviour of the adapter, some signals need translation:
* TIOCM_DTR DSR
* TIOCM_RTS CTS
*/
static int
simodem(struct tty *tp, int sigon, int sigoff)
{
struct si_port *pp;
volatile struct si_channel *ccbp;
int x;
pp = tty_softc(tp);
DPRINT((pp, DBG_ENTRY|DBG_MODEM, "simodem(%x,%x)\n", sigon, sigoff));
mtx_assert(&Giant, MA_OWNED);
ccbp = pp->sp_ccb; /* Find channel address */
if (sigon == 0 && sigoff == 0) {
x = ccbp->hi_ip;
/*
* XXX: not sure this is correct, should it be CTS&DSR ?
* XXX: or do we (just) miss CTS & DSR ?
*/
if (x & IP_DCD) sigon |= SER_DCD;
if (x & IP_DTR) sigon |= SER_DTR;
if (x & IP_RTS) sigon |= SER_RTS;
if (x & IP_RI) sigon |= SER_RI;
return (sigon);
}
x = ccbp->hi_op;
if (sigon & SER_DTR)
x |= OP_DSR;
if (sigoff & SER_DTR)
x &= ~OP_DSR;
if (sigon & SER_RTS)
x |= OP_CTS;
if (sigoff & SER_RTS)
x &= ~OP_CTS;
ccbp->hi_op = x;
return 0;
}
/*
* Handle change of modem state
*/
static void
si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip)
{
/* if a modem dev */
mtx_assert(&Giant, MA_OWNED);
if (hi_ip & IP_DCD) {
if (!(pp->sp_last_hi_ip & IP_DCD)) {
DPRINT((pp, DBG_INTR, "modem carr on%d\n"));
(void)ttydisc_modem(tp, 1);
}
} else {
if (pp->sp_last_hi_ip & IP_DCD) {
DPRINT((pp, DBG_INTR, "modem carr off\n"));
#if 0 /* XXX mpsafetty ttyld_modem used to tell us to shutdown the port or not */
if (ttydisc_modem(tp, 0))
(void) simodem(tp, 0, SER_DTR | SER_RTS);
#else
ttydisc_modem(tp, 0);
#endif
}
}
pp->sp_last_hi_ip = hi_ip;
}
/*
* Poller to catch missed interrupts.
*
* Note that the SYSV Specialix drivers poll at 100 times per second to get
* better response. We could really use a "periodic" version timeout(). :-)
*/
#ifdef POLL
static void
si_poll(void *nothing)
{
struct si_softc *sc;
int i;
volatile struct si_reg *regp;
struct si_port *pp;
int lost, oldspl, port;
DPRINT((0, DBG_POLL, "si_poll()\n"));
oldspl = spltty();
mtx_assert(&Giant, MA_OWNED);
lost = 0;
for (i = 0; i < si_numunits; i++) {
sc = devclass_get_softc(si_devclass, i);
if (sc == NULL || sc->sc_type == SIEMPTY)
continue;
regp = (struct si_reg *)sc->sc_maddr;
/*
* See if there has been a pending interrupt for 2 seconds
* or so. The test (int_scounter >= 200) won't correspond
* to 2 seconds if int_count gets changed.
*/
if (regp->int_pending != 0) {
if (regp->int_scounter >= 200 &&
regp->initstat == 1) {
printf("si%d: lost intr\n", i);
lost++;
}
} else {
regp->int_scounter = 0;
}
/*
* gripe about no input flow control..
*/
pp = sc->sc_ports;
for (port = 0; port < sc->sc_nport; pp++, port++) {
if (pp->sp_delta_overflows > 0) {
printf("si%d: %d tty level buffer overflows\n",
i, pp->sp_delta_overflows);
pp->sp_delta_overflows = 0;
}
}
}
if (lost || si_realpoll)
si_intr(NULL); /* call intr with fake vector */
splx(oldspl);
timeout(si_poll, (caddr_t)0L, si_pollrate);
}
#endif /* ifdef POLL */
/*
* The interrupt handler polls ALL ports on ALL adapters each time
* it is called.
*/
static BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */
static BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */
void
si_intr(void *arg)
{
struct si_softc *sc;
struct si_port *pp;
volatile struct si_channel *ccbp;
struct tty *tp;
volatile caddr_t maddr;
BYTE op, ip;
int x, card, port, n, i, isopen;
volatile BYTE *z;
BYTE c;
sc = arg;
mtx_assert(&Giant, MA_OWNED);
DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n"));
/*
* When we get an int we poll all the channels and do ALL pending
* work, not just the first one we find. This allows all cards to
* share the same vector.
*
* XXX - But if we're sharing the vector with something that's NOT
* a SI/XIO/SX card, we may be making more work for ourselves.
*/
for (card = 0; card < si_numunits; card++) {
sc = devclass_get_softc(si_devclass, card);
if (sc == NULL || sc->sc_type == SIEMPTY)
continue;
/*
* First, clear the interrupt
*/
switch(sc->sc_type) {
case SIHOST:
maddr = sc->sc_maddr;
((volatile struct si_reg *)maddr)->int_pending = 0;
/* flag nothing pending */
*(maddr+SIINTCL) = 0x00; /* Set IRQ clear */
*(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */
break;
case SIHOST2:
maddr = sc->sc_maddr;
((volatile struct si_reg *)maddr)->int_pending = 0;
*(maddr+SIPLIRQCLR) = 0x00;
*(maddr+SIPLIRQCLR) = 0x10;
break;
case SIPCI:
maddr = sc->sc_maddr;
((volatile struct si_reg *)maddr)->int_pending = 0;
*(maddr+SIPCIINTCL) = 0x0;
break;
case SIJETPCI: /* fall through to JETISA case */
case SIJETISA:
maddr = sc->sc_maddr;
((volatile struct si_reg *)maddr)->int_pending = 0;
*(maddr+SIJETINTCL) = 0x0;
break;
#ifdef DEV_EISA
case SIEISA:
maddr = sc->sc_maddr;
((volatile struct si_reg *)maddr)->int_pending = 0;
(void)inb(sc->sc_iobase + 3);
break;
#endif
case SIEMPTY:
default:
continue;
}
((volatile struct si_reg *)maddr)->int_scounter = 0;
/*
* check each port
*/
for (pp = sc->sc_ports, port = 0; port < sc->sc_nport;
pp++, port++) {
ccbp = pp->sp_ccb;
tp = pp->sp_tty;
tty_lock(tp);
/*
* See if a command has completed ?
*/
if (ccbp->hi_stat != pp->sp_pend) {
DPRINT((pp, DBG_INTR,
"si_intr hi_stat = %s, pend = %s\n",
si_cmdname(ccbp->hi_stat),
si_cmdname(pp->sp_pend)));
switch(pp->sp_pend) {
case LOPEN:
case MPEND:
case MOPEN:
case FCLOSE:
case CONFIG:
case SBREAK:
case EBREAK:
/* sleeping in si_command */
DPRINT((pp, DBG_INTR, "do wakeup\n"));
wakeup(&pp->sp_state);
break;
}
pp->sp_pend = ccbp->hi_stat;
}
/*
* Continue on if it's closed
*/
if (ccbp->hi_stat == IDLE_CLOSE) {
tty_unlock(tp);
continue;
}
/*
* Do modem state change if not a local device
*/
si_modem_state(pp, tp, ccbp->hi_ip);
/*
* Check to see if we should 'receive' characters.
*/
isopen = tty_opened(tp);
/*
* Do input break processing
*/
if (ccbp->hi_state & ST_BREAK) {
if (isopen)
ttydisc_rint(tp, 0, TRE_BREAK);
ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */
DPRINT((pp, DBG_INTR, "si_intr break\n"));
}
/*
* Do RX stuff - if not open then dump any characters.
* XXX: This is VERY messy and needs to be cleaned up.
*
* XXX: can we leave data in the host adapter buffer
* when the clists are full? That may be dangerous
* if the user cannot get an interrupt signal through.
*/
more_rx:
if (!isopen) {
DPRINT((pp, DBG_INTR, "intr1: not open\n"));
ccbp->hi_rxopos = ccbp->hi_rxipos;
goto end_rx;
}
#if 0 /* XXXMPSAFETTY */
/*
* If the tty input buffers are blocked, stop emptying
* the incoming buffers and let the auto flow control
* assert..
*/
if (tp->t_state & TS_TBLOCK)
goto end_rx;
#endif
/*
* Process read characters if not skipped above
*/
op = ccbp->hi_rxopos;
ip = ccbp->hi_rxipos;
c = ip - op;
if (c == 0)
goto end_rx;
n = c & 0xff;
if (n > 250)
n = 250;
DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n",
n, op, ip));
/*
* Suck characters out of host card buffer into the
* "input staging buffer" - so that we dont leave the
* host card in limbo while we're possibly echoing
* characters and possibly flushing input inside the
* ldisc l_rint() routine.
*/
if (n <= SI_BUFFERSIZE - op) {
z = ccbp->hi_rxbuf + op;
si_vbcopy(z, si_rxbuf, n);
op += n;
} else {
x = SI_BUFFERSIZE - op;
z = ccbp->hi_rxbuf + op;
si_vbcopy(z, si_rxbuf, x);
z = ccbp->hi_rxbuf;
si_vbcopy(z, si_rxbuf + x, n - x);
op += n;
}
/* clear collected characters from buffer */
ccbp->hi_rxopos = op;
/*
* at this point...
* n = number of chars placed in si_rxbuf
*/
if (0 && ttydisc_can_bypass(tp)) {
i = ttydisc_rint_bypass(tp, (char *)si_rxbuf, n);
if (i < n)
pp->sp_delta_overflows += (n - i);
} else {
/*
* It'd be nice to not have to go through the
* function call overhead for each char here.
* It'd be nice to block input it, saving a
* loop here and the call/return overhead.
*/
for(x = 0; x < n; x++) {
i = si_rxbuf[x];
if (ttydisc_rint(tp, i, 0) == -1)
pp->sp_delta_overflows++;
}
}
goto more_rx; /* try for more until RXbuf is empty */
end_rx:
ttydisc_rint_done(tp);
/*
* Do TX stuff
*/
si_start(tp);
tty_unlock(tp);
} /* end of for (all ports on this controller) */
} /* end of for (all controllers) */
DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n"));
}
/*
* Nudge the transmitter...
*
* XXX: I inherited some funny code here. It implies the host card only
* interrupts when the transmit buffer reaches the low-water-mark, and does
* not interrupt when it's actually hits empty. In some cases, we have
* processes waiting for complete drain, and we need to simulate an interrupt
* about when we think the buffer is going to be empty (and retry if not).
* I really am not certain about this... I *need* the hardware manuals.
*/
static void
si_start(struct tty *tp)
{
struct si_port *pp;
volatile struct si_channel *ccbp;
BYTE ipos, count;
#if 0
int nchar;
#endif
int oldspl, n, amount;
oldspl = spltty();
mtx_assert(&Giant, MA_OWNED);
pp = tty_softc(tp);
DPRINT((pp, DBG_ENTRY|DBG_START,
"si_start(%x) sp_state %x\n",
tp, pp->sp_state));
ccbp = pp->sp_ccb;
while ((count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos) < 255) {
DPRINT((pp, DBG_START, "txbuf pend count %d\n", (BYTE)count));
ipos = (unsigned int)ccbp->hi_txipos;
if ((int)ccbp->hi_txopos <= ipos)
amount = SI_BUFFERSIZE - ipos;
else
amount = 255 - count;
DPRINT((pp, DBG_START, "spaceleft amount %d\n", amount));
if (amount == 0)
break;
n = ttydisc_getc(tp, si_txbuf, amount);
DPRINT((pp, DBG_START, "getc n=%d\n", n));
if (n == 0)
break;
si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n);
ccbp->hi_txipos += n;
}
#if 0
/*
* See if there are any characters still to come. If so, we can
* depend on si_start being called again.
*
* XXX the manual is vague on this. It implies we get an interrupt
* when the transmit queue reaches the 25% low water mark, but NOT
* when it hits empty.
*/
nchar = ttyoutq_getsize(&tp->t_outq) - ttyoutq_bytesleft(&tp->t_outq);
DPRINT((pp, DBG_START, "count %d, nchar %d\n",
(BYTE)count, nchar));
if (count != 0 && nchar == 0) {
int time;
/* XXX lame. Ticks per character. used to be a table. */
time = (tp->t_termios.c_ospeed + 9) / 10;
if (time > 0) {
if (time < nchar)
time = nchar / time;
else
time = 2;
} else {
DPRINT((pp, DBG_START,
"bad char time value! %d\n", time));
time = hz/10;
}
if ((pp->sp_state & SS_LSTART) != 0)
untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch);
DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time));
pp->sp_state |= SS_LSTART;
pp->lstart_ch = timeout(si_lstart, (caddr_t)pp, time);
}
#endif
splx(oldspl);
DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n"));
}
#if 0
/*
* This has to deal with two things... cause wakeups while waiting for
* tty drains on last process exit, and call l_start at about the right
* time for protocols like ppp.
*/
static void
si_lstart(void *arg)
{
struct si_port *pp = arg;
struct tty *tp;
int oldspl;
DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n",
pp, pp->sp_state));
oldspl = spltty();
mtx_assert(&Giant, MA_OWNED);
pp->sp_state &= ~SS_LSTART;
tp = pp->sp_tty;
si_start(tp);
splx(oldspl);
}
#endif
#if 0 /* XXX mpsafetty */
/*
* Stop output on a line. called at spltty();
*/
static void
si_stop(struct tty *tp, int rw)
{
volatile struct si_channel *ccbp;
struct si_port *pp;
mtx_assert(&Giant, MA_OWNED);
pp = tty_softc(tp);
ccbp = pp->sp_ccb;
DPRINT((pp, DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw));
/* XXX: must check (rw & FWRITE | FREAD) etc flushing... */
if (rw & FWRITE) {
/* what level are we meant to be flushing anyway? */
if (tp->t_state & TS_BUSY) {
si_command(pp, WFLUSH, SI_NOWAIT);
tp->t_state &= ~TS_BUSY;
ttwwakeup(tp); /* Bruce???? */
}
}
#if 1 /* XXX: this doesn't work right yet.. */
/* XXX: this may have been failing because we used to call l_rint()
* while we were looping based on these two counters. Now, we collect
* the data and then loop stuffing it into l_rint(), making this
* useless. Should we cause this to blow away the staging buffer?
*/
if (rw & FREAD) {
ccbp->hi_rxopos = ccbp->hi_rxipos;
}
#endif
}
#endif
/*
* Issue a command to the host card CPU.
*
* XXX This is all just so WRONG!. Ed says we're not supposed to sleep
* here anyway. We sort of get away with it for now by using Giant.
* Something better will have to be done.
* Linux does a busy spin here waiting for the 8-bit cpu to notice the
* posted command and respond to it. I'm not sure I like that either.
*/
static void
si_command(struct si_port *pp, int cmd, int waitflag)
{
int oldspl;
volatile struct si_channel *ccbp = pp->sp_ccb;
int x;
int err;
DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%s,%d): hi_stat %s, sp_pend: %s\n",
pp, si_cmdname(cmd), waitflag, si_cmdname(ccbp->hi_stat),
si_cmdname(pp->sp_pend)));
oldspl = spltty(); /* Keep others out */
mtx_assert(&Giant, MA_OWNED);
/* wait until it's finished what it was doing.. */
/* XXX: sits in IDLE_BREAK until something disturbs it or break
* is turned off. */
while((x = ccbp->hi_stat) != IDLE_OPEN &&
x != IDLE_CLOSE &&
x != IDLE_BREAK &&
x != cmd) {
DPRINT((pp, DBG_PARAM, "sicmd1 old cmd pending (going to tsleep): hi_stat (%s)\n", si_cmdname(ccbp->hi_stat)));
err = tsleep(&pp->sp_state, (PSOCK+1)|PCATCH, "sicmd1", hz/4);
if (err) {
DPRINT((pp, DBG_PARAM, "sicmd1 timeout: hi_stat (%s)\n",
si_cmdname(ccbp->hi_stat)));
/* This is very very bad. The card has crashed. */
/* XXX the driver breaks at this point */
if (err == ETIMEDOUT)
DPRINT(("%s: tsleep1 timeout. hi_stat %s, sp_pend %s\n", pp->sp_name, si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
splx(oldspl);
return;
}
}
/* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */
DPRINT((pp, DBG_PARAM, "sicmd1 now in: hi_stat (%s) sp_pend (%s)\n", si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
/* if there was a pending command, cause a state-change wakeup */
switch(pp->sp_pend) {
case LOPEN:
case MPEND:
case MOPEN:
case FCLOSE:
case CONFIG:
case SBREAK:
case EBREAK:
DPRINT((pp, DBG_PARAM, "si_command: sp_pend %s, doing wakeup\n", si_cmdname(pp->sp_pend)));
wakeup(&pp->sp_state);
break;
default:
break;
}
pp->sp_pend = cmd; /* New command pending */
ccbp->hi_stat = cmd; /* Post it */
DPRINT((pp, DBG_PARAM, "sicmd now posted: hi_stat (%s) sp_pend (%s)\n", si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
if (waitflag) {
while((x = ccbp->hi_stat) != IDLE_OPEN &&
x != IDLE_CLOSE &&
x != IDLE_BREAK) {
DPRINT((pp, DBG_PARAM, "sicmd2 now waiting: hi_stat (%s) sp_pend (%s) (going to tsleep)\n", si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
err = tsleep(&pp->sp_state, (PSOCK+1)|PCATCH, "sicmd2", hz);
if (err) {
DPRINT((pp, DBG_PARAM, "sicmd2 tsleep error: hi_stat (%s) sp_pend (%s)\n", si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
if (err == ETIMEDOUT) {
DPRINT(("%s: tsleep2 timeout. hi_stat %s, sp_pend %s\n", pp->sp_name, si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
}
break;
}
}
}
DPRINT((pp, DBG_PARAM, "sicmd2 finished: hi_stat (%s) sp_pend (%s)\n", si_cmdname(ccbp->hi_stat), si_cmdname(pp->sp_pend)));
splx(oldspl);
}
#ifdef SI_DEBUG
void
si_dprintf(struct si_port *pp, int flags, const char *fmt, ...)
{
va_list ap;
if ((pp == NULL && (si_debug&flags)) ||
(pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) {
if (pp != NULL)
printf("%s: ", pp->sp_name);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
}
}
#endif /* DEBUG */
static char *
si_modulename(int host_type, int uart_type)
{
switch (host_type) {
/* Z280 based cards */
#ifdef DEV_EISA
case SIEISA:
#endif
case SIHOST2:
case SIHOST:
case SIPCI:
switch (uart_type) {
case 0:
return(" (XIO)");
case 1:
return(" (SI)");
}
break;
/* T225 based hosts */
case SIJETPCI:
case SIJETISA:
switch (uart_type) {
case 0:
return(" (SI)");
case 40:
return(" (XIO)");
case 72:
return(" (SXDC)");
}
break;
}
return("");
}
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