304 lines
6.9 KiB
C
304 lines
6.9 KiB
C
/* $NetBSD: dz_vsbus.c,v 1.11 1999/03/27 15:33:46 ragge Exp $ */
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/*
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* Copyright (c) 1998 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <dev/cons.h>
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#include <machine/mtpr.h>
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#include <machine/sid.h>
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#include <machine/uvax.h>
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#include <machine/vsbus.h>
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#include <machine/cpu.h>
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#include <machine/scb.h>
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#include <machine/../vax/gencons.h>
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#include <vax/uba/dzreg.h>
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#include <vax/uba/dzvar.h>
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#include "ioconf.h"
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#include "lkc.h"
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static int dz_vsbus_match __P((struct device *, struct cfdata *, void *));
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static void dz_vsbus_attach __P((struct device *, struct device *, void *));
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static int dz_print __P((void *, const char *));
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static vaddr_t dz_regs; /* Used for console */
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struct cfattach dz_vsbus_ca = {
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sizeof(struct dz_softc), dz_vsbus_match, dz_vsbus_attach
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};
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#define REG(name) short name; short X##name##X;
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static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */
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REG(csr); /* 00 Csr: control/status register */
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REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */
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REG(tcr); /* 08 Tcr: transmit console register */
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REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */
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REG(lpr0); /* 10 Lpr0: */
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REG(lpr1); /* 14 Lpr0: */
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REG(lpr2); /* 18 Lpr0: */
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REG(lpr3); /* 1C Lpr0: */
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} *dz;
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#undef REG
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cons_decl(dz);
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int
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dz_print(aux, name)
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void *aux;
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const char *name;
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{
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if (name)
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printf ("lkc at %s", name);
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return (UNCONF);
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}
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static int
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dz_vsbus_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct vsbus_attach_args *va = aux;
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struct ss_dz *dzP;
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short i;
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dzP = (struct ss_dz *)va->va_addr;
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i = dzP->tcr;
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dzP->csr = DZ_CSR_MSE;
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dzP->tcr = 0;
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DELAY(1000);
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dzP->tcr = 1;
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DELAY(100000);
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dzP->tcr = i;
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va->va_ivec = dzxint;
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/* If the device doesn't exist, no interrupt has been generated */
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return 1;
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}
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static void
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dz_vsbus_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct dz_softc *sc = (void *)self;
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struct vsbus_attach_args *va = aux;
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sc->sc_dr.dr_csr = (void *)(dz_regs + 0);
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sc->sc_dr.dr_rbuf = (void *)(dz_regs + 4);
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sc->sc_dr.dr_dtr = (void *)(dz_regs + 9);
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sc->sc_dr.dr_break = (void *)(dz_regs + 13);
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sc->sc_dr.dr_tbuf = (void *)(dz_regs + 12);
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sc->sc_dr.dr_tcr = (void *)(dz_regs + 8);
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sc->sc_dr.dr_dcd = (void *)(dz_regs + 13);
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sc->sc_dr.dr_ring = (void *)(dz_regs + 13);
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sc->sc_type = DZ_DZV;
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sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */
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scb_vecalloc(va->va_cvec - 4, dzrint, self->dv_unit, SCB_ISTACK);
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printf("\n%s: 4 lines", self->dv_xname);
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dzattach(sc);
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if (((vax_confdata & 0x80) == 0) ||/* workstation, have lkc */
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(vax_boardtype == VAX_BTYP_48))
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config_found(self, 0, dz_print);
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}
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int
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dzcngetc(dev)
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dev_t dev;
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{
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int c = 0;
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int mino = minor(dev);
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u_short rbuf;
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do {
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while ((dz->csr & 0x80) == 0)
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; /* Wait for char */
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rbuf = dz->rbuf;
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if (((rbuf >> 8) & 3) != mino)
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continue;
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c = rbuf & 0x7f;
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} while (c == 17 || c == 19); /* ignore XON/XOFF */
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if (c == 13)
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c = 10;
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return (c);
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}
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#define DZMAJOR 1
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void
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dzcnprobe(cndev)
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struct consdev *cndev;
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{
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extern vaddr_t iospace;
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int diagcons;
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switch (vax_boardtype) {
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case VAX_BTYP_410:
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case VAX_BTYP_420:
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case VAX_BTYP_43:
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diagcons = (vax_confdata & 0x20 ? 3 : 0);
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break;
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case VAX_BTYP_46:
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case VAX_BTYP_48:
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diagcons = (vax_confdata & 0x100 ? 3 : 0);
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break;
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case VAX_BTYP_49:
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diagcons = 3;
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break;
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default:
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cndev->cn_pri = CN_DEAD;
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return;
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}
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if (diagcons)
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cndev->cn_pri = CN_REMOTE;
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else
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cndev->cn_pri = CN_NORMAL;
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cndev->cn_dev = makedev(DZMAJOR, diagcons);
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dz_regs = iospace;
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ioaccess(iospace, 0x200A0000, 1);
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}
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void
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dzcninit(cndev)
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struct consdev *cndev;
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{
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dz = (void*)dz_regs;
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dz->csr = 0; /* Disable scanning until initting is done */
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dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */
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dz->csr = 0x20; /* Turn scanning back on */
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}
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void
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dzcnputc(dev,ch)
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dev_t dev;
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int ch;
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{
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int timeout = 1<<15; /* don't hang the machine! */
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int mino = minor(dev);
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u_short tcr;
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if (mfpr(PR_MAPEN) == 0)
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return;
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tcr = dz->tcr; /* remember which lines to scan */
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dz->tcr = (1 << mino);
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while ((dz->csr & 0x8000) == 0) /* Wait until ready */
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if (--timeout < 0)
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break;
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dz->tdr = ch; /* Put the character */
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timeout = 1<<15;
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while ((dz->csr & 0x8000) == 0) /* Wait until ready */
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if (--timeout < 0)
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break;
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dz->tcr = tcr;
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}
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void
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dzcnpollc(dev, pollflag)
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dev_t dev;
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int pollflag;
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{
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static u_char mask;
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if (pollflag)
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mask = vsbus_setmask(0);
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else
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vsbus_setmask(mask);
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}
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#if NLKC
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cons_decl(lkc);
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void
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lkccninit(cndev)
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struct consdev *cndev;
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{
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dz = (void*)dz_regs;
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dz->csr = 0; /* Disable scanning until initting is done */
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dz->tcr = 1; /* Turn off all but line 0's xmitter */
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dz->rbuf = 0x1c18; /* XXX */
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dz->csr = 0x20; /* Turn scanning back on */
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}
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int
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lkccngetc(dev)
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dev_t dev;
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{
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int lkc_decode(int);
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int c;
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// u_char mask;
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// mask = vsbus_setmask(0); /* save old state */
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loop:
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while ((dz->csr & 0x80) == 0)
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; /* Wait for char */
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c = lkc_decode(dz->rbuf & 255);
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if (c < 1)
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goto loop;
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// vsbus_clrintr(0x80); /* XXX */
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// vsbus_setmask(mask);
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return (c);
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}
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#endif
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