248 lines
6.2 KiB
C
248 lines
6.2 KiB
C
/* $NetBSD: dz_ibus.c,v 1.32 2003/12/13 23:02:33 ad Exp $ */
|
|
/*
|
|
* Copyright (c) 1998 Ludd, University of Lule}, Sweden.
|
|
* All rights reserved.
|
|
*
|
|
* 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
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, 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 at Ludd, University of
|
|
* Lule}, Sweden and its contributors.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: dz_ibus.c,v 1.32 2003/12/13 23:02:33 ad Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/file.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/device.h>
|
|
#include <sys/reboot.h>
|
|
|
|
#include <dev/cons.h>
|
|
|
|
#include <machine/mtpr.h>
|
|
#include <machine/sid.h>
|
|
#include <machine/uvax.h>
|
|
#include <machine/vsbus.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/scb.h>
|
|
#include <machine/nexus.h>
|
|
|
|
#include <arch/vax/vax/gencons.h>
|
|
|
|
#include <dev/dec/dzreg.h>
|
|
#include <dev/dec/dzvar.h>
|
|
|
|
#include "ioconf.h"
|
|
|
|
#define DZADDR 0x25000000
|
|
#define DZVEC 0x154
|
|
|
|
static int dz_ibus_match(struct device *, struct cfdata *, void *);
|
|
static void dz_ibus_attach(struct device *, struct device *, void *);
|
|
|
|
static vaddr_t idz_regs; /* Used for console */
|
|
|
|
CFATTACH_DECL(dz_ibus, sizeof(struct dz_softc),
|
|
dz_ibus_match, dz_ibus_attach, NULL, NULL);
|
|
|
|
#define REG(name) short name; short X##name##X;
|
|
static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */
|
|
REG(csr); /* 00 Csr: control/status register */
|
|
REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */
|
|
REG(tcr); /* 08 Tcr: transmit console register */
|
|
REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */
|
|
REG(lpr0); /* 10 Lpr0: */
|
|
REG(lpr1); /* 14 Lpr0: */
|
|
REG(lpr2); /* 18 Lpr0: */
|
|
REG(lpr3); /* 1C Lpr0: */
|
|
} *idz;
|
|
#undef REG
|
|
|
|
cons_decl(idz);
|
|
|
|
static int
|
|
dz_ibus_match(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
struct bp_conf *bp = aux;
|
|
|
|
if (strcmp(bp->type, "dz") == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
dz_ibus_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct dz_softc *sc = (void *)self;
|
|
struct ss_dz *dzP;
|
|
int i, vec, br;
|
|
|
|
/*
|
|
* XXX - This is evil and ugly, but...
|
|
* due to the nature of how bus_space_* works on VAX, this will
|
|
* be perfectly good until everything is converted.
|
|
*/
|
|
sc->sc_ioh = idz_regs;
|
|
sc->sc_dr.dr_csr = 0;
|
|
sc->sc_dr.dr_rbuf = 4;
|
|
sc->sc_dr.dr_dtr = 9;
|
|
sc->sc_dr.dr_break = 13;
|
|
sc->sc_dr.dr_tbuf = 12;
|
|
sc->sc_dr.dr_tcr = 8;
|
|
sc->sc_dr.dr_dcd = 13;
|
|
sc->sc_dr.dr_ring = 13;
|
|
|
|
sc->sc_dr.dr_firstreg = 0;
|
|
sc->sc_dr.dr_winsize = sizeof(struct ss_dz);
|
|
|
|
sc->sc_type = DZ_DZV;
|
|
|
|
scb_vecref(0, 0);
|
|
dzP = (struct ss_dz *)idz_regs;
|
|
i = dzP->tcr;
|
|
dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE;
|
|
dzP->tcr = 0;
|
|
DELAY(1000);
|
|
dzP->tcr = 1;
|
|
DELAY(100000);
|
|
dzP->tcr = i;
|
|
i = scb_vecref(&vec, &br);
|
|
printf(": vec %o ipl %x", vec, br);
|
|
if(i == 0 || vec == 0) printf(" -> NO INT!");
|
|
|
|
sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */
|
|
|
|
scb_vecalloc(DZVEC, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt);
|
|
scb_vecalloc(DZVEC - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt);
|
|
|
|
printf("\n%s: 4 lines", self->dv_xname);
|
|
|
|
dzattach(sc, NULL, minor(cn_tab->cn_dev);
|
|
}
|
|
|
|
int
|
|
idzcngetc(dev)
|
|
dev_t dev;
|
|
{
|
|
int c = 0, s;
|
|
int mino = minor(dev);
|
|
u_short rbuf;
|
|
|
|
s = spltty();
|
|
do {
|
|
while ((idz->csr & 0x80) == 0)
|
|
; /* Wait for char */
|
|
rbuf = idz->rbuf;
|
|
if (((rbuf >> 8) & 3) != mino)
|
|
continue;
|
|
c = rbuf & 0x7f;
|
|
} while (c == 17 || c == 19); /* ignore XON/XOFF */
|
|
splx(s);
|
|
|
|
if (c == 13)
|
|
c = 10;
|
|
|
|
return (c);
|
|
}
|
|
|
|
void
|
|
idzcnprobe(cndev)
|
|
struct consdev *cndev;
|
|
{
|
|
extern vaddr_t iospace;
|
|
int diagcons;
|
|
paddr_t ioaddr = DZADDR;
|
|
extern const struct cdevsw dz_cdevsw;
|
|
|
|
/* not fine... but for now only KA53 is known to have dz@ibus */
|
|
|
|
if(vax_boardtype != VAX_BTYP_53) {
|
|
cndev->cn_pri = CN_DEAD;
|
|
return;
|
|
}
|
|
|
|
diagcons = 3;
|
|
cndev->cn_pri = CN_NORMAL;
|
|
cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons);
|
|
idz_regs = iospace;
|
|
ioaccess(iospace, ioaddr, 1);
|
|
}
|
|
|
|
void
|
|
idzcninit(cndev)
|
|
struct consdev *cndev;
|
|
{
|
|
idz = (void*)idz_regs;
|
|
|
|
idz->csr = 0; /* Disable scanning until initting is done */
|
|
idz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */
|
|
idz->csr = 0x20; /* Turn scanning back on */
|
|
}
|
|
|
|
|
|
void
|
|
idzcnputc(dev,ch)
|
|
dev_t dev;
|
|
int ch;
|
|
{
|
|
int timeout = 1<<15; /* don't hang the machine! */
|
|
int mino = minor(dev);
|
|
u_short tcr;
|
|
int s;
|
|
|
|
if (mfpr(PR_MAPEN) == 0)
|
|
return;
|
|
|
|
s = spltty();
|
|
tcr = idz->tcr; /* remember which lines to scan */
|
|
idz->tcr = (1 << mino);
|
|
|
|
while ((idz->csr & 0x8000) == 0) /* Wait until ready */
|
|
if (--timeout < 0)
|
|
break;
|
|
idz->tdr = ch; /* Put the character */
|
|
timeout = 1<<15;
|
|
while ((idz->csr & 0x8000) == 0) /* Wait until ready */
|
|
if (--timeout < 0)
|
|
break;
|
|
|
|
idz->tcr = tcr;
|
|
splx(s);
|
|
}
|
|
|
|
void
|
|
idzcnpollc(dev_t dev, int pollflag)
|
|
{
|
|
}
|