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Diffstat (limited to 'sys/arch/pmax/tc/scc.c')
-rw-r--r--sys/arch/pmax/tc/scc.c255
1 files changed, 163 insertions, 92 deletions
diff --git a/sys/arch/pmax/tc/scc.c b/sys/arch/pmax/tc/scc.c
index cdfb312bd6c..22fc8c3c562 100644
--- a/sys/arch/pmax/tc/scc.c
+++ b/sys/arch/pmax/tc/scc.c
@@ -1,4 +1,4 @@
-/* $NetBSD: scc.c,v 1.5 1995/09/29 21:55:19 jonathan Exp $ */
+/* $NetBSD: scc.c,v 1.11.4.2 1996/06/16 17:13:16 mhitch Exp $ */
/*
* Copyright (c) 1991,1990,1989,1994,1995 Carnegie Mellon University
@@ -65,14 +65,8 @@
* from: @(#)scc.c 8.2 (Berkeley) 11/30/93
*/
-/*
- * Old, non-rcons Pmax console-redirection won't compile on Alphas.
- */
-#ifdef pmax
-#define TK_NOTYET
-#endif
-#include <scc.h>
+#include "scc.h"
#if NSCC > 0
/*
* Intel 82530 dual usart chip driver. Supports the serial port(s) on the
@@ -106,8 +100,6 @@
#include <dev/ic/z8530reg.h>
#include <pmax/dev/lk201.h>
-#include <machine/autoconf.h>
-
#ifdef pmax
#include <machine/machConst.h>
#include <pmax/pmax/cons.h>
@@ -115,18 +107,20 @@
#include <pmax/pmax/maxine.h>
#include <pmax/pmax/asic.h>
#include <pmax/dev/sccreg.h>
-#include <pmax/dev/sccvar.h> /* XXX */
+#include <pmax/tc/sccvar.h> /* XXX */
#endif
-
#ifdef alpha
#include <alpha/tc/sccreg.h>
#include <alpha/tc/sccvar.h>
#include <machine/rpb.h>
-#include <alpha/tc/asic.h>
-#include <alpha/tc/tc.h>
+#include <alpha/tc/ioasicreg.h>
#endif
+#include <machine/autoconf.h>
+#include <dev/tc/tcvar.h>
+#include <dev/tc/ioasicvar.h>
+
extern void ttrstrt __P((void *));
#ifdef alpha
@@ -135,11 +129,12 @@ extern void ttrstrt __P((void *));
#endif
/*
- * Support old-style pmax console redirection, with
- * macros that also work on Alphas with serial consoles.
- * (Should be replaced with rcons?)
+ * rcons glass-tty console (as used on pmax and sparc) won't compile on Alphas.
*/
-
+#ifdef pmax
+#define HAVE_RCONS
+extern int pending_remcons;
+#endif
/*
* True iff the console unit is diverted throught this SCC device.
@@ -261,9 +256,14 @@ struct speedtab sccspeedtab[] = {
/* Definition of the driver for autoconfig. */
int sccmatch __P((struct device * parent, void *cfdata, void *aux));
void sccattach __P((struct device *parent, struct device *self, void *aux));
-extern struct cfdriver scccd;
-struct cfdriver scccd = {
- NULL, "scc", sccmatch, sccattach, DV_TTY, sizeof (struct scc_softc)
+extern struct cfdriver scc_cd;
+
+struct cfattach scc_ca = {
+ sizeof (struct scc_softc), sccmatch, sccattach
+};
+
+struct cfdriver scc_cd = {
+ NULL, "scc", DV_TTY
};
int sccGetc __P((dev_t));
@@ -278,6 +278,10 @@ static void scc_modem_intr __P((dev_t));
static void sccreset __P((struct scc_softc *));
int sccintr __P((void *));
+
+void scc_consinit __P((struct scc_softc *sc));
+
+
#ifdef alpha
void scc_alphaintr __P((int));
#endif
@@ -293,15 +297,12 @@ sccmatch(parent, match, aux)
void *aux;
{
struct cfdata *cf = match;
- struct confargs *ca = aux;
+ struct ioasicdev_attach_args *d = aux;
void *sccaddr;
- extern struct cfdriver ioasiccd;
-
-
- if (parent->dv_cfdata->cf_driver == &ioasiccd) {
+ if (parent->dv_cfdata->cf_driver == &ioasic_cd) {
/* Make sure that we're looking for this type of device. */
- if (!BUS_MATCHNAME(ca, "scc"))
+ if (strncmp(d->iada_modname, "scc", TC_ROM_LLEN))
return (0);
}
else {
@@ -317,7 +318,7 @@ sccmatch(parent, match, aux)
return (0);
/* Get the address, and check it for validity. */
- sccaddr = BUS_CVTADDR(ca);
+ sccaddr = (caddr_t)d->iada_addr;
#ifdef alpha
sccaddr = TC_DENSE_TO_SPARSE(sccaddr);
#endif /*alpha*/
@@ -334,20 +335,20 @@ scc_alphaintr(onoff)
int onoff;
{
if (onoff) {
- *(volatile u_int *)ASIC_REG_IMSK(asic_base) |=
- ASIC_INTR_SCC_1 | ASIC_INTR_SCC_0;
+ *(volatile u_int *)IOASIC_REG_IMSK(ioasic_base) |=
+ IOASIC_INTR_SCC_1 | IOASIC_INTR_SCC_0;
#if !defined(DEC_3000_300) && defined(SCC_DMA)
- *(volatile u_int *)ASIC_REG_CSR(asic_base) |=
- ASIC_CSR_DMAEN_T1 | ASIC_CSR_DMAEN_R1 |
- ASIC_CSR_DMAEN_T2 | ASIC_CSR_DMAEN_R2;
+ *(volatile u_int *)IOASIC_REG_CSR(ioasic_base) |=
+ IOASIC_CSR_DMAEN_T1 | IOASIC_CSR_DMAEN_R1 |
+ IOASIC_CSR_DMAEN_T2 | IOASIC_CSR_DMAEN_R2;
#endif
} else {
- *(volatile u_int *)ASIC_REG_IMSK(asic_base) &=
- ~(ASIC_INTR_SCC_1 | ASIC_INTR_SCC_0);
+ *(volatile u_int *)IOASIC_REG_IMSK(ioasic_base) &=
+ ~(IOASIC_INTR_SCC_1 | IOASIC_INTR_SCC_0);
#if !defined(DEC_3000_300) && defined(SCC_DMA)
- *(volatile u_int *)ASIC_REG_CSR(asic_base) &=
- ~(ASIC_CSR_DMAEN_T1 | ASIC_CSR_DMAEN_R1 |
- ASIC_CSR_DMAEN_T2 | ASIC_CSR_DMAEN_R2);
+ *(volatile u_int *)IOASIC_REG_CSR(ioasic_base) &=
+ ~(IOASIC_CSR_DMAEN_T1 | IOASIC_CSR_DMAEN_R1 |
+ IOASIC_CSR_DMAEN_T2 | IOASIC_CSR_DMAEN_R2);
#endif
}
wbflush();
@@ -361,7 +362,7 @@ sccattach(parent, self, aux)
void *aux;
{
struct scc_softc *sc = (struct scc_softc *)self;
- struct confargs *ca = aux;
+ struct ioasicdev_attach_args *d = aux;
struct pdma *pdp;
struct tty *tp;
void *sccaddr;
@@ -369,27 +370,40 @@ sccattach(parent, self, aux)
struct termios cterm;
struct tty ctty;
int s;
-#ifdef alpha
extern int cputype;
-#endif
int unit, flags;
unit = sc->sc_dv.dv_unit;
flags = sc->sc_dv.dv_cfdata->cf_flags;
- sccaddr = (void*)MACH_PHYS_TO_UNCACHED(BUS_CVTADDR(ca));
+ /* serial console debugging */
+#if defined(DEBUG) && defined(HAVE_RCONS) && 0
+ if (CONSOLE_ON_UNIT(unit) && (cn_tab->cn_pri == CN_REMOTE))
+ printf("\nattaching scc%d, currently PROM console\n", unit);
+#endif /* defined(DEBUG) && defined(HAVE_RCONS)*/
+
+ sccaddr = (void*)MACH_PHYS_TO_UNCACHED(d->iada_addr);
#ifdef alpha
sccaddr = TC_DENSE_TO_SPARSE(sccaddr);
#endif /*alpha*/
/* Register the interrupt handler. */
- BUS_INTR_ESTABLISH(ca, sccintr, (void *)sc);
+ ioasic_intr_establish(parent, d->iada_cookie, TC_IPL_TTY,
+ sccintr, (void *)sc);
+
+ /* serial console debugging */
+#if defined(DEBUG) && defined(HAVE_RCONS) && 0 /*XXX*/
+ if (CONSOLE_ON_UNIT(unit) && (cn_tab->cn_pri == CN_REMOTE)) {
+ DELAY(10000);
+ printf("(attached interrupt, delaying)\n");
+ }
+#endif /* defined(DEBUG) && defined(HAVE_RCONS)*/
/*
* For a remote console, wait a while for previous output to
* complete.
*/
-#ifdef TK_NOTYET
+#ifdef HAVE_RCONS
if (CONSOLE_ON_UNIT(unit) && (cn_tab->cn_pri == CN_REMOTE))
DELAY(10000);
#else
@@ -404,6 +418,8 @@ sccattach(parent, self, aux)
for (cntr = 0; cntr < 2; cntr++) {
pdp->p_addr = (void *)sccaddr;
tp = scc_tty[unit * 2 + cntr] = ttymalloc();
+ if (cputype == DS_MAXINE || cntr == 0)
+ tty_attach(tp); /* XXX */
pdp->p_arg = (long)tp;
pdp->p_fcn = (void (*)())0;
tp->t_dev = (dev_t)((unit << 1) | cntr);
@@ -418,11 +434,55 @@ sccattach(parent, self, aux)
/*
* Special handling for consoles.
*/
-#ifdef TK_NOTYET
+#ifdef pmax
+ if (pending_remcons) {
+ /*
+ * We were using PROM callbacks for console I/O,
+ * and we just reset the chip under the console.
+ * wire up this driver as console ASAP.
+ */
+
+ static struct consdev scccons = {
+ NULL, NULL, sccGetc, sccPutc, sccPollc, NODEV, 0
+ };
+
+
+ /*XXX*/ /* test for correct unit */
+ DELAY(10000);
+
+ /*
+ * XXX PROM and NetBSD unit numbers swapped
+ * on kn03, maybe kmin?
+ */
+ if (cn_tab->cn_dev == unit)
+ return;
+
+ /*
+ * If we are using the PROM serial-console routines
+ * as console, now is the time to set up the scc
+ * driver as console.
+ */
+ scc_consinit(sc);
+ cn_tab = &scccons;
+ cn_tab->cn_dev = makedev(SCCDEV,
+ sc->sc_dv.dv_unit == 0 ? SCCCOMM2_PORT : SCCCOMM3_PORT);
+ printf(" (In sccattach: cn_dev = 0x%x)", cn_tab->cn_dev);
+ printf(" (Unit = %d)", unit);
+ printf(": console");
+ pending_remcons = 0;
+ /*
+ * XXX We should support configurations where the PROM
+ * console device is a serial console, and a
+ * framebuffer, keyboard, and mouse are present.
+ */
+ return;
+ }
+#endif /* pmax */
+#ifdef HAVE_RCONS
if ((cn_tab->cn_getc == LKgetc)) {
/* XXX test below may be too inclusive ? */
- if (1 /*CONSOLE_ON_UNIT(unit)*/ ) {
-
+ /*(1)*/ /*(CONSOLE_ON_UNIT(unit))*/
+ if (major(cn_tab->cn_dev) == SCCDEV) {
if (unit == 1) {
s = spltty();
ctty.t_dev = makedev(SCCDEV, SCCKBD_PORT);
@@ -430,7 +490,7 @@ sccattach(parent, self, aux)
#ifdef pmax
/* XXX -- why on pmax, not on Alpha? */
cterm.c_cflag |= CLOCAL;
-#endif
+#endif /* pmax */
cterm.c_ospeed = cterm.c_ispeed = 4800;
(void) sccparam(&ctty, &cterm);
DELAY(10000);
@@ -441,7 +501,7 @@ sccattach(parent, self, aux)
* works ok without it.
*/
KBDReset(ctty.t_dev, sccPutc);
-#endif
+#endif /* notyet */
DELAY(10000);
splx(s);
} else if (unit == 0) {
@@ -450,7 +510,7 @@ sccattach(parent, self, aux)
cterm.c_cflag = CS8 | PARENB | PARODD;
cterm.c_ospeed = cterm.c_ispeed = 4800;
(void) sccparam(&ctty, &cterm);
-#ifdef TK_NOTYET
+#ifdef HAVE_RCONS
DELAY(10000);
MouseInit(ctty.t_dev, sccPutc, sccGetc);
DELAY(10000);
@@ -459,29 +519,10 @@ sccattach(parent, self, aux)
}
}
} else
-#endif /* TK_NOTYET */
- if (SCCUNIT(cn_tab->cn_dev) == unit)
- {
- s = spltty();
-#ifdef pmax
- printf("wiring unit %d as console\n", SCCUNIT(cn_tab->cn_dev));
- ctty.t_dev = cn_tab->cn_dev;
-#else
- ctty.t_dev = makedev(SCCDEV,
- sc->sc_dv.dv_unit == 0 ? SCCCOMM2_PORT : SCCCOMM3_PORT);
-#endif
- 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);
-#ifdef TK_NOTYET
- /*cn_tab.cn_disabled = 0;*/ /* FIXME */
-#endif
- splx(s);
+#endif /* HAVE_RCONS */
+ if (SCCUNIT(cn_tab->cn_dev) == unit)
+ {
+ /*XXX console initialization used to go here */
}
#ifdef alpha
@@ -491,9 +532,6 @@ sccattach(parent, self, aux)
*/
if ((cputype == ST_DEC_3000_500 && sc->sc_dv.dv_unit == 1) ||
(cputype == ST_DEC_3000_300 && sc->sc_dv.dv_unit == 0))
-#else /* !alpha */
- if (cn_tab->cn_dev == NODEV) /*XXX*/
-#endif /* !alpha */
{
static struct consdev scccons = {
NULL, NULL, sccGetc, sccPutc, sccPollc, NODEV, 0
@@ -507,6 +545,37 @@ sccattach(parent, self, aux)
sc->scc_softCAR |= SCCLINE(cn_tab->cn_dev);
} else
printf("\n");
+#endif /* !alpha */
+ printf("\n");
+}
+
+/*
+ * Set up a given unit as a serial console device.
+ * 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(sc)
+ struct scc_softc *sc;
+{
+ struct termios cterm;
+ struct tty ctty;
+ int s;
+
+ s = spltty();
+ ctty.t_dev = makedev(SCCDEV,
+ sc->sc_dv.dv_unit == 0 ? SCCCOMM2_PORT : SCCCOMM3_PORT);
+ 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);
}
/*
@@ -592,9 +661,9 @@ sccopen(dev, flag, mode, p)
int s, error = 0;
unit = SCCUNIT(dev);
- if (unit >= scccd.cd_ndevs)
+ if (unit >= scc_cd.cd_ndevs)
return (ENXIO);
- sc = scccd.cd_devs[unit];
+ sc = scc_cd.cd_devs[unit];
if (!sc)
return (ENXIO);
@@ -603,8 +672,10 @@ sccopen(dev, flag, mode, p)
return (ENXIO);
tp = scc_tty[minor(dev)];
- if (tp == NULL)
+ if (tp == NULL) {
tp = scc_tty[minor(dev)] = ttymalloc();
+ tty_attach(tp);
+ }
tp->t_oproc = sccstart;
tp->t_param = sccparam;
tp->t_dev = dev;
@@ -650,9 +721,9 @@ sccclose(dev, flag, mode, p)
int flag, mode;
struct proc *p;
{
- register struct scc_softc *sc = scccd.cd_devs[SCCUNIT(dev)];
+ register struct scc_softc *sc = scc_cd.cd_devs[SCCUNIT(dev)];
register struct tty *tp;
- register int bit, line;
+ register int line;
tp = scc_tty[minor(dev)];
line = SCCLINE(dev);
@@ -723,7 +794,7 @@ sccioctl(dev, cmd, data, flag, p)
return (error);
line = SCCLINE(dev);
- sc = scccd.cd_devs[SCCUNIT(dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(dev)];
switch (cmd) {
case TIOCSBRK:
@@ -791,7 +862,7 @@ sccparam(tp, t)
/*
* Handle console specially.
*/
-#ifdef TK_NOTYET
+#ifdef HAVE_RCONS
if (cn_tab->cn_getc == LKgetc) {
if (minor(tp->t_dev) == SCCKBD_PORT) {
cflag = CS8;
@@ -801,7 +872,7 @@ sccparam(tp, t)
ospeed = ttspeedtab(4800, sccspeedtab);
}
} else if (tp->t_dev == cn_tab->cn_dev)
-#endif /*TK_NOTYET*/
+#endif /*HAVE_RCONS*/
{
cflag = CS8;
ospeed = ttspeedtab(9600, sccspeedtab);
@@ -811,7 +882,7 @@ sccparam(tp, t)
return (0);
}
- sc = scccd.cd_devs[SCCUNIT(tp->t_dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(tp->t_dev)];
line = SCCLINE(tp->t_dev);
regs = (scc_regmap_t *)sc->scc_pdma[line].p_addr;
@@ -1028,7 +1099,7 @@ sccintr(xxxsc)
(*sccDivertXInput)(cc);
continue;
}
-#ifdef TK_NOTYET
+#ifdef HAVE_RCONS
if ((cc = kbdMapChar(cc)) < 0)
continue;
#endif
@@ -1075,7 +1146,7 @@ sccstart(tp)
u_char temp;
int s, sendone;
- sc = scccd.cd_devs[SCCUNIT(tp->t_dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(tp->t_dev)];
dp = &sc->scc_pdma[SCCLINE(tp->t_dev)];
regs = (scc_regmap_t *)dp->p_addr;
s = spltty();
@@ -1156,7 +1227,7 @@ sccstop(tp, flag)
register struct scc_softc *sc;
register int s;
- sc = scccd.cd_devs[SCCUNIT(tp->t_dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(tp->t_dev)];
dp = &sc->scc_pdma[SCCLINE(tp->t_dev)];
s = spltty();
if (tp->t_state & TS_BUSY) {
@@ -1180,7 +1251,7 @@ sccmctl(dev, bits, how)
register u_char value;
int s;
- sc = scccd.cd_devs[SCCUNIT(dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(dev)];
line = SCCLINE(dev);
regs = (scc_regmap_t *)sc->scc_pdma[line].p_addr;
s = spltty();
@@ -1244,7 +1315,7 @@ scc_modem_intr(dev)
register u_char value;
int s;
- sc = scccd.cd_devs[SCCUNIT(dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(dev)];
tp = scc_tty[minor(dev)];
chan = SCCLINE(dev);
regs = (scc_regmap_t *)sc->scc_pdma[chan].p_addr;
@@ -1290,7 +1361,7 @@ sccGetc(dev)
int s;
line = SCCLINE(dev);
- sc = scccd.cd_devs[SCCUNIT(dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(dev)];
regs = (scc_regmap_t *)sc->scc_pdma[line].p_addr;
if (!regs)
return (0);
@@ -1341,7 +1412,7 @@ sccPutc(dev, c)
s = splhigh();
#endif
line = SCCLINE(dev);
- sc = scccd.cd_devs[SCCUNIT(dev)];
+ sc = scc_cd.cd_devs[SCCUNIT(dev)];
regs = (scc_regmap_t *)sc->scc_pdma[line].p_addr;
/*
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 03:10:05 +0000