110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/* $NetBSD: com_isapnp.c,v 1.30 2018/12/08 17:46:13 thorpej Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Michael Graff <explorer@flame.org>.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: com_isapnp.c,v 1.30 2018/12/08 17:46:13 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/termios.h>
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#include <sys/bus.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <dev/isapnp/isapnpreg.h>
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#include <dev/isapnp/isapnpvar.h>
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#include <dev/isapnp/isapnpdevs.h>
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#include <dev/ic/comvar.h>
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#include <dev/ic/comreg.h>
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struct com_isapnp_softc {
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struct com_softc sc_com; /* real "com" softc */
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/* ISAPnP-specific goo. */
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void *sc_ih; /* interrupt handler */
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};
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int com_isapnp_match(device_t, cfdata_t , void *);
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void com_isapnp_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(com_isapnp, sizeof(struct com_isapnp_softc),
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com_isapnp_match, com_isapnp_attach, NULL, NULL);
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int
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com_isapnp_match(device_t parent, cfdata_t match, void *aux)
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{
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int pri, variant;
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pri = isapnp_devmatch(aux, &isapnp_com_devinfo, &variant);
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if (pri && variant > 0)
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pri = 0;
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return (pri);
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}
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void
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com_isapnp_attach(device_t parent, device_t self, void *aux)
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{
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struct com_isapnp_softc *isc = device_private(self);
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struct com_softc *sc = &isc->sc_com;
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struct isapnp_attach_args *ipa = aux;
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sc->sc_dev = self;
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if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
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aprint_error_dev(self, "error in region allocation\n");
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return;
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}
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com_init_regs(&sc->sc_regs, ipa->ipa_iot, ipa->ipa_io[0].h,
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ipa->ipa_io[0].base);
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/*
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* if the chip isn't something we recognise skip it.
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*/
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if (com_probe_subr(&sc->sc_regs) == 0)
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return;
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sc->sc_frequency = 115200 * 16; /* is that always right? */
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com_attach_subr(sc);
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isc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
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ipa->ipa_irq[0].type, IPL_SERIAL, comintr, sc);
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}
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