379 lines
9.0 KiB
C
379 lines
9.0 KiB
C
/* $NetBSD: dz_vsbus.c,v 1.35 2004/12/14 02:32:03 chs 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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dz_vsbus.c,v 1.35 2004/12/14 02:32:03 chs Exp $");
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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 <arch/vax/vax/gencons.h>
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#include <dev/dec/dzreg.h>
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#include <dev/dec/dzvar.h>
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#include "ioconf.h"
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#include "locators.h"
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#include "dzkbd.h"
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#include "dzms.h"
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#include "opt_cputype.h"
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#if NDZKBD > 0 || NDZMS > 0
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#include <dev/dec/dzkbdvar.h>
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#if 0
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static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL };
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#endif
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#endif
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static int dz_vsbus_match(struct device *, struct cfdata *, void *);
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static void dz_vsbus_attach(struct device *, struct device *, void *);
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static vaddr_t dz_regs; /* Used for console */
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CFATTACH_DECL(dz_vsbus, sizeof(struct dz_softc),
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dz_vsbus_match, dz_vsbus_attach, NULL, NULL);
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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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#if NDZKBD > 0 || NDZMS > 0
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static int
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dz_print(void *aux, const char *name)
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{
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#if 0
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#if NDZKBD > 0 || NDZMS > 0
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struct dz_attach_args *dz_args = aux;
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if (name == NULL) {
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aprint_normal (" line %d", dz_args->line);
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if (dz_args->hwflags & DZ_HWFLAG_CONSOLE)
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aprint_normal (" (console)");
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}
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return (QUIET);
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#else
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if (name)
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aprint_normal ("lkc at %s", name);
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return (UNCONF);
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#endif
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#endif
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return (UNCONF);
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}
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#endif
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static int
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dz_vsbus_match(struct device *parent, struct cfdata *cf, 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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#if VAX53 || VAX49 || VAXANY
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if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49)
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if (cf->cf_loc[VSBUSCF_CSR] != 0x25000000)
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return 0; /* Ugly */
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#endif
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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|DZ_CSR_TXIE;
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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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/* 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(struct device *parent, struct device *self, 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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#if NDZKBD > 0
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extern const struct cdevsw dz_cdevsw;
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#endif
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#if NDZKBD > 0 || NDZMS > 0
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struct dzkm_attach_args daa;
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#endif
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int s, consline;
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/*
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* XXX - This is evil and ugly, but...
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* due to the nature of how bus_space_* works on VAX, this will
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* be perfectly good until everything is converted.
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*/
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if (dz_regs == 0) /* This isn't console */ {
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dz_regs = vax_map_physmem(va->va_paddr, 1);
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consline = -1;
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} else
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consline = minor(cn_tab->cn_dev);
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sc->sc_ioh = dz_regs;
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sc->sc_dr.dr_csr = 0;
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sc->sc_dr.dr_rbuf = 4;
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sc->sc_dr.dr_dtr = 9;
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sc->sc_dr.dr_break = 13;
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sc->sc_dr.dr_tbuf = 12;
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sc->sc_dr.dr_tcr = 8;
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sc->sc_dr.dr_dcd = 13;
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sc->sc_dr.dr_ring = 13;
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sc->sc_dr.dr_firstreg = 0;
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sc->sc_dr.dr_winsize = 14;
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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, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt);
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scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt);
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printf("\n%s: 4 lines", self->dv_xname);
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dzattach(sc, NULL, consline);
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DELAY(10000);
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if (consline != -1)
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cn_set_magic("\033D"); /* set VAX DDB escape sequence */
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#if NDZKBD > 0
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/* Don't touch this port if this is the console */
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if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) {
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dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8)
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| DZ_LPR_8_BIT_CHAR;
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daa.daa_line = 0;
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daa.daa_flags =
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(cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0);
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config_found(self, &daa, dz_print);
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}
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#endif
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#if NDZMS > 0
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dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \
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| DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */;
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daa.daa_line = 1;
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daa.daa_flags = 0;
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config_found(self, &daa, dz_print);
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#endif
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s = spltty();
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dzrint(sc);
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dzxint(sc);
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splx(s);
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}
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int
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dzcngetc(dev_t dev)
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{
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int c = 0, s;
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int mino = minor(dev);
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u_short rbuf;
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s = spltty();
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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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splx(s);
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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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void
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dzcnprobe(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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paddr_t ioaddr = 0x200A0000;
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extern const struct cdevsw dz_cdevsw;
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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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case VAX_BTYP_53:
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ioaddr = 0x25000000;
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diagcons = (vax_confdata & 8 ? 3 : 0);
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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(cdevsw_lookup_major(&dz_cdevsw), diagcons);
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(vaddr_t)dz = dz_regs = iospace;
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ioaccess(iospace, ioaddr, 1);
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}
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void
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dzcninit(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_t dev, 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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int s;
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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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s = spltty();
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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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splx(s);
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}
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void
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dzcnpollc(dev_t dev, 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 NDZKBD > 0 || NDZMS > 0
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int
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dzgetc(struct dz_linestate *ls)
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{
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int line = ls->dz_line;
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int s;
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u_short rbuf;
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s = spltty();
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for (;;) {
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for(; (dz->csr & DZ_CSR_RX_DONE) == 0;);
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rbuf = dz->rbuf;
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if (((rbuf >> 8) & 3) == line) {
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splx(s);
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return (rbuf & 0xff);
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}
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}
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}
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void
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dzputc(struct dz_linestate *ls, int ch)
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{
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int line;
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u_short tcr;
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int s;
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extern const struct cdevsw dz_cdevsw;
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/* if the dz has already been attached, the MI
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driver will do the transmitting: */
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if (ls && ls->dz_sc) {
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s = spltty();
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line = ls->dz_line;
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putc(ch, &ls->dz_tty->t_outq);
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tcr = dz->tcr;
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if (!(tcr & (1 << line)))
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dz->tcr = tcr | (1 << line);
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dzxint(ls->dz_sc);
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splx(s);
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return;
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}
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/* use dzcnputc to do the transmitting: */
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dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch);
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}
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#endif /* NDZKBD > 0 || NDZMS > 0 */
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