121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* Copyright 2006 Kyma Systems LLC.
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* All rights reserved.
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*
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* Written by Sanjay Lal <sanjayl@kymasys.com>
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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 for the NetBSD Project by
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* Kyma Systems LLC.
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* 4. The name of Kyma Systems LLC may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY KYMA SYSTEMS LLC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KYMA SYSTEMS LLC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* com device attachment to mainbus for MAMBO G5 simulator */
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/tty.h>
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#include <machine/bus.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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struct com_mainbus_softc
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{
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struct com_softc sc_com; /* real "com" softc */
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void *sc_ih; /* interrupt handler */
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};
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int com_mainbus_probe(struct device *, struct cfdata *, void *);
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void com_mainbus_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(com_mainbus, sizeof(struct com_mainbus_softc),
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com_mainbus_probe, com_mainbus_attach, NULL, NULL);
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int com_mainbus_attached = 0;
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int
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com_mainbus_probe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct confargs *ca = aux;
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if (strcmp(ca->ca_name, "com") != 0)
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return 0;
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if (!com_mainbus_attached) {
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com_mainbus_attached = 1;
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return (1);
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}
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else
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return 0;
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}
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void
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com_mainbus_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 com_mainbus_softc *msc = (void *) self;
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struct com_softc *sc = &msc->sc_com;
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int serial, interrupt_length;
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int interrupts[8];
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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bus_addr_t iobase;
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serial = OF_finddevice("/ht@0/isa@4/serial@0x3f8");
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if (serial != -1) {
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interrupt_length =
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OF_getprop(serial, "interrupts", interrupts, sizeof(interrupts));
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}
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iot = (bus_space_tag_t)0xf4000000;
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iobase = 0x3f8;
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comcnattach(iot, iobase, 9600, 1843200, COM_TYPE_NORMAL, (CREAD | CS8));
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bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh);
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COM_INIT_REGS(sc->sc_regs, iot, ioh, iobase);
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sc->sc_frequency = 1843200;
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com_attach_subr(sc);
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#if 1
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msc->sc_ih =
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intr_establish(interrupts[0], IST_LEVEL, IPL_SERIAL, comintr, sc);
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if (msc->sc_ih == NULL)
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panic("failed to establish int handler");
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#endif
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}
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