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Garbage-collect all the (outdated and totally useless) pmax stuff

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in this code.
This commit is contained in:
thorpej 2001-09-06 05:31:49 +00:00
parent 5c2ee5861d
commit 6203b547a5
1 changed files with 3 additions and 245 deletions

248
sys/arch/alpha/tc/scc.c

@ -1,4 +1,4 @@
/* $NetBSD: scc.c,v 1.55 2001/08/26 16:39:56 simonb Exp $ */
/* $NetBSD: scc.c,v 1.56 2001/09/06 05:31:49 thorpej Exp $ */
/*
* Copyright (c) 1991,1990,1989,1994,1995,1996 Carnegie Mellon University
@ -64,12 +64,10 @@
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: scc.c,v 1.55 2001/08/26 16:39:56 simonb Exp $");
__KERNEL_RCSID(0, "$NetBSD: scc.c,v 1.56 2001/09/06 05:31:49 thorpej Exp $");
#include "opt_ddb.h"
#ifdef alpha
#include "opt_dec_3000_300.h"
#endif
/*
* Intel 82530 dual usart chip driver. Supports the serial port(s) on the
@ -105,38 +103,16 @@ __KERNEL_RCSID(0, "$NetBSD: scc.c,v 1.55 2001/08/26 16:39:56 simonb Exp $");
#include <dev/tc/ioasicreg.h>
#include <dev/tc/ioasicvar.h>
#ifdef alpha
#undef SCCDEV
#define SCCDEV 15 /* XXX */
#endif
/*
* rcons glass-tty console (as used on pmax) needs lk-201 ASCII input
* support from the tty drivers. This is ugly and broken and won't
* compile on Alphas.
*/
#ifdef pmax
#if NRASTERCONSOLE > 0
#define HAVE_RCONS
#endif
extern int pending_remcons;
#endif
#ifdef alpha
#define RASTER_CONSOLE() 1 /* Treat test for cn_screen as true */
#define raster_console() 1 /* Treat test for cn_screen as true */
#define CONSOLE_ON_UNIT(unit) 0 /* No raster console on Alphas */
#endif
#define NSCCLINE (NSCC*2)
#define SCCUNIT(dev) (minor(dev) >> 1)
#define SCCLINE(dev) (minor(dev) & 0x1)
/* QVSS-compatible in-kernel X input event parser, pointer tracker */
void (*sccDivertXInput) __P((int cc)); /* X windows keyboard input routine */
void (*sccMouseEvent) __P((int)); /* X windows mouse motion event routine */
void (*sccMouseButtons) __P((int)); /* X windows mouse buttons event routine */
#ifdef DEBUG
int debugChar;
#endif
@ -230,96 +206,16 @@ static void scc_modem_intr __P((dev_t));
static void sccreset __P((struct scc_softc *));
int sccintr __P((void *));
#ifdef alpha
void scc_alphaintr __P((int));
#endif
/*
* console variables, for using serial console while still cold and
* autoconfig has not attached the scc device.
*/
scc_regmap_t *scc_cons_addr = 0;
static struct scc_softc coldcons_softc;
static struct consdev scccons = {
NULL, NULL, sccGetc, sccPutc, sccPollc, NULL, NODEV, 0
};
void scc_consinit __P((dev_t dev, scc_regmap_t *sccaddr));
/*
* Set up a given unit as a serial console device.
* We need console output when cold, and before any device is configured.
* Should be callable when cold, to reset the chip and set parameters
* for a remote (serial) console or kgdb line.
* XXX
* As most DECstations only bring out one rs-232 lead from an SCC
* to the bulkhead, and use the other for mouse and keyboard, we
* only allow one unit per SCC to be console.
*/
void
scc_consinit(dev, sccaddr)
dev_t dev;
scc_regmap_t *sccaddr;
{
struct scc_softc *sc;
struct termios cterm;
struct tty ctty;
int s;
/* Save address in case we're cold. */
if (cold && scc_cons_addr == 0) {
scc_cons_addr = sccaddr;
sc = &coldcons_softc;
coldcons_softc.scc_pdma[0].p_addr = sccaddr;
coldcons_softc.scc_pdma[1].p_addr = sccaddr;
} else {
/* being called from sccattach() to reset console */
sc = scc_cd.cd_devs[SCCUNIT(dev)];
}
/* Reset chip. */
sccreset(sc);
/* XXX make sure sccreset() called only once for this chip? */
/* set console-line parameters */
s = spltty();
ctty.t_dev = dev;
scccons.cn_dev = dev;
cterm.c_cflag = CS8;
#ifdef pmax
/* XXX -- why on pmax, not on Alpha? */
cterm.c_cflag |= CLOCAL;
#endif
cterm.c_ospeed = cterm.c_ispeed = 9600;
(void) cold_sccparam(&ctty, &cterm, sc);
*cn_tab = scccons;
DELAY(1000);
splx(s);
}
#ifndef alpha
void
scc_oconsinit(sc, dev)
struct scc_softc *sc;
dev_t dev;
{
struct termios cterm;
struct tty ctty;
int s;
s = spltty();
ctty.t_dev = dev;
cterm.c_cflag = CS8;
#ifdef pmax
/* XXX -- why on pmax, not on Alpha? */
cterm.c_cflag |= CLOCAL;
#endif
cterm.c_ospeed = cterm.c_ispeed = 9600;
(void) sccparam(&ctty, &cterm);
DELAY(1000);
splx(s);
}
#endif
/*
* Test to see if device is present.
@ -366,7 +262,6 @@ sccmatch(parent, cf, aux)
return (1);
}
#ifdef alpha
/*
* Enable ioasic SCC interrupts and scc DMA engine interrupts.
* XXX does not really belong here.
@ -394,7 +289,6 @@ scc_alphaintr(onoff)
}
tc_mb();
}
#endif /* alpha */
void
sccattach(parent, self, aux)
@ -429,15 +323,9 @@ sccattach(parent, self, aux)
* For a remote console, wait a while for previous output to
* complete.
*/
#ifdef HAVE_RCONS
if (major(cn_tab.cn_dev) == SCCDEV && cn_tab.cn_screen == 0 &&
SCCUNIT(cn_tab.cn_dev) == cp->pmax_unit)
DELAY(10000);
#else
if ((cputype == ST_DEC_3000_500 && sc->sc_dv.dv_unit == 1) ||
(cputype == ST_DEC_3000_300 && sc->sc_dv.dv_unit == 0))
DELAY(10000);
#endif
pdp = &sc->scc_pdma[0];
/* init pseudo DMA structures */
@ -460,44 +348,7 @@ sccattach(parent, self, aux)
/*
* Special handling for consoles.
*/
if (0 /* cn_tab.cn_screen */) {
if (1 /* cn_tab.cn_kbdgetc == sccGetc */) {
if (sc->sc_dv.dv_unit == 1) {
s = spltty();
ctty.t_dev = makedev(SCCDEV, SCCKBD_PORT);
cterm.c_cflag = CS8;
#ifdef pmax
/* XXX -- why on pmax, not on Alpha? */
cterm.c_cflag |= CLOCAL;
#endif /* pmax */
cterm.c_ospeed = cterm.c_ispeed = 4800;
(void) sccparam(&ctty, &cterm);
DELAY(10000);
#ifdef notyet
/*
* For some reason doing this hangs the 3min
* during booting. Fortunately the keyboard
* works ok without it.
*/
KBDReset(ctty.t_dev, sccPutc);
#endif /* notyet */
DELAY(10000);
splx(s);
} else if (sc->sc_dv.dv_unit == 0) {
s = spltty();
ctty.t_dev = makedev(SCCDEV, SCCMOUSE_PORT);
cterm.c_cflag = CS8 | PARENB | PARODD;
cterm.c_ospeed = cterm.c_ispeed = 4800;
(void) sccparam(&ctty, &cterm);
#ifdef HAVE_RCONS
DELAY(10000);
MouseInit(ctty.t_dev, sccPutc, sccGetc);
DELAY(10000);
#endif
splx(s);
}
}
} else if (1 /* SCCUNIT(cn_tab.cn_dev) == sc->sc_dv.dv_unit */) {
if (1 /* SCCUNIT(cn_tab.cn_dev) == sc->sc_dv.dv_unit */) {
s = spltty();
ctty.t_dev = makedev(SCCDEV,
sc->sc_dv.dv_unit == 0 ? SCCCOMM2_PORT : SCCCOMM3_PORT);
@ -505,13 +356,9 @@ sccattach(parent, self, aux)
cterm.c_ospeed = cterm.c_ispeed = 9600;
(void) sccparam(&ctty, &cterm);
DELAY(1000);
#ifdef HAVE_RCONS
cn_tab.cn_disabled = 0;
#endif
splx(s);
}
#ifdef alpha
/*
* XXX
* Unit 1 is the remote console, wire it up now.
@ -529,9 +376,6 @@ sccattach(parent, self, aux)
sc->scc_softCAR |= SCCLINE(cn_tab->cn_dev);
} else
printf("\n");
#else /* !alpha */
printf("\n");
#endif /* !alpha */
}
/*
@ -666,14 +510,6 @@ sccopen(dev, flag, mode, p)
return (error);
error = (*tp->t_linesw->l_open)(dev, tp);
#ifdef HAVE_RCONS
/* handle raster console specially */
if (tp == scctty(makedev(SCCDEV,SCCKBD_PORT)) &&
raster_console() && firstopen) {
extern struct tty *fbconstty;
tp->t_winsize = fbconstty->t_winsize;
}
#endif /* HAVE_RCONS */
return (error);
}
@ -869,17 +705,6 @@ cold_sccparam(tp, t, sc)
/*
* Handle console specially.
*/
#ifdef HAVE_RCONS
if (cn_tab->cn_getc == LKgetc) {
if (minor(tp->t_dev) == SCCKBD_PORT) {
cflag = CS8;
ospeed = ttspeedtab(4800, sccspeedtab);
} else if (minor(tp->t_dev) == SCCMOUSE_PORT) {
cflag = CS8 | PARENB | PARODD;
ospeed = ttspeedtab(4800, sccspeedtab);
}
} else if (tp->t_dev == cn_tab->cn_dev)
#endif /*HAVE_RCONS*/
{
cflag = CS8;
ospeed = ttspeedtab(9600, sccspeedtab);
@ -974,12 +799,10 @@ cold_sccparam(tp, t, sc)
value = sc->scc_wreg[line].wr14;
SCC_WRITE_REG(regs, line, SCC_WR14, value);
#ifdef alpha
if (SCCUNIT(tp->t_dev) == 1) {
/* On unit one, on the flamingo, modem control is floating! */
value = ZSWR15_BREAK_IE;
} else
#endif
{
value = ZSWR15_BREAK_IE | ZSWR15_CTS_IE | ZSWR15_DCD_IE;
}
@ -998,9 +821,7 @@ cold_sccparam(tp, t, sc)
SCC_WRITE_REG(regs, line, SCC_WR1, sc->scc_wreg[line].wr1);
tc_mb();
#ifdef alpha
scc_alphaintr(1); /* XXX XXX XXX */
#endif /*alpha*/
return (0);
}
@ -1042,9 +863,6 @@ sccintr(xxxsc)
dp = &sc->scc_pdma[chan];
if (dp->p_mem < dp->p_end) {
SCC_WRITE_DATA(regs, chan, *dp->p_mem++);
#ifdef pmax /* Alpha handles the 1.6 msec settle time in hardware */
DELAY(2);
#endif
tc_mb();
} else {
tp->t_state &= ~TS_BUSY;
@ -1086,39 +904,6 @@ sccintr(xxxsc)
}
}
/*
* Keyboard needs special treatment.
*/
if (tp == scctty(makedev(SCCDEV, SCCKBD_PORT)) && raster_console()) {
#if defined(DDB) && defined(LK_DO)
if (cc == LK_DO) {
spl0();
Debugger();
return;
}
#endif
#ifdef DEBUG
debugChar = cc;
#endif
if (sccDivertXInput) {
(*sccDivertXInput)(cc);
continue;
}
#ifdef HAVE_RCONS
if ((cc = kbdMapChar(cc)) < 0)
continue;
#endif
/*
* Now for mousey
*/
} else if (tp == scctty(makedev(SCCDEV, SCCMOUSE_PORT)) &&
sccMouseButtons) {
#ifdef HAVE_RCONS
/*XXX*/
mouseInput(cc);
#endif
continue;
}
if (!(tp->t_state & TS_ISOPEN)) {
wakeup((caddr_t)&tp->t_rawq);
#ifdef PORTSELECTOR
@ -1212,9 +997,6 @@ sccstart(tp)
panic("sccstart: No chars");
#endif
SCC_WRITE_DATA(regs, chan, *dp->p_mem++);
#ifdef pmax /* Alpha handles the 1.6 msec settle time in hardware */
DELAY(2);
#endif
}
tc_mb();
out:
@ -1345,21 +1127,6 @@ scc_modem_intr(dev)
#endif
}
/*
* The pmax driver follows carrier-detect. The Alpha does not.
* On pmax, ignore hups on a console tty.
* On alpha, a no-op, for historical reasons. XXXXXX
*/
#ifdef pmax
if (!CONSOLE_ON_UNIT(sc->sc_dv.dv_unit)) {
if (car) {
/* carrier present */
if (!(tp->t_state & TS_CARR_ON))
(void)(*tp->t_linesw->l_modem)(tp, 1);
} else if (tp->t_state & TS_CARR_ON)
(void)(*tp->t_linesw->l_modem)(tp, 0);
}
#endif /* pmax */
splx(s);
}
@ -1386,12 +1153,7 @@ sccGetc(dev)
if (!regs)
return (0);
#ifdef pmax
/*s = spltty(); */ /* XXX why different spls? */
s = splhigh();
#else
s = splhigh();
#endif
for (;;) {
SCC_READ_REG(regs, line, SCC_RR0, value);
if (value & ZSRR0_RX_READY) {
@ -1426,11 +1188,7 @@ sccPutc(dev, c)
register u_char value;
int s;
#ifdef pmax
s = spltty(); /* XXX why different spls? */
#else
s = splhigh();
#endif
line = SCCLINE(dev);
if (cold && scc_cons_addr) {
regs = scc_cons_addr;