34537908ab
This allows us to convert aucom to just another com attachment, and cleanup some code in the com_arbus.c. Additionally, we use a common com_cleanup routine rather than having a zillion copies of it in the attachment points. This has been tested on a number architectures, and it has been shown to get close to comparable performance when COM_REGMAP is defined, and comparable when it is not defined. Approved by core@. Fixes PR port-evbmips/32362.
151 lines
5.6 KiB
C
151 lines
5.6 KiB
C
/* $NetBSD: com_jazzio.c,v 1.9 2006/07/13 22:56:00 gdamore Exp $ */
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/* $OpenBSD: com_lbus.c,v 1.7 1998/03/16 09:38:41 pefo Exp $ */
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/* NetBSD: com_isa.c,v 1.12 1998/08/15 17:47:17 mycroft Exp */
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/*-
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* Copyright (c) 1998 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 Charles M. Hannum.
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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 by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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/*-
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* Copyright (c) 1991 The Regents of the University of California.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)com.c 7.5 (Berkeley) 5/16/91
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: com_jazzio.c,v 1.9 2006/07/13 22:56:00 gdamore Exp $");
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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/autoconf.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <arc/jazz/jazziovar.h>
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#include <dev/isa/isavar.h> /* XXX for isa_chipset_tag_t in com_softc */
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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#include <dev/ic/ns16550reg.h>
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extern int com_freq;
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int com_jazzio_probe(struct device *, struct cfdata *, void *);
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void com_jazzio_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(com_jazzio, sizeof(struct com_softc),
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com_jazzio_probe, com_jazzio_attach, NULL, NULL);
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int
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com_jazzio_probe(struct device *parent, struct cfdata *match, void *aux)
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{
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struct jazzio_attach_args *ja = aux;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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int iobase;
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int rv = 1;
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if (strcmp(ja->ja_name, "COM1") != 0 &&
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strcmp(ja->ja_name, "COM2") != 0)
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return 0;
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iot = ja->ja_bust;
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iobase = ja->ja_addr;
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/* if it's in use as console, it's there. */
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if (!com_is_console(iot, iobase, 0)) {
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if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) {
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return 0;
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}
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rv = comprobe1(iot, ioh);
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bus_space_unmap(iot, ioh, COM_NPORTS);
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}
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return rv;
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}
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void
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com_jazzio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct jazzio_attach_args *ja = aux;
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struct com_softc *sc = (void *)self;
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int iobase;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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iobase = ja->ja_addr;
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iot = ja->ja_bust;
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if (!com_is_console(iot, iobase, &ioh) &&
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bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) {
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printf(": can't map i/o space\n");
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return;
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}
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COM_INIT_REGS(sc->sc_regs, iot, ioh, iobase);
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sc->sc_frequency = com_freq;
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SET(sc->sc_hwflags, COM_HW_TXFIFO_DISABLE); /* XXX - NEC M403 */
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jazzio_intr_establish(ja->ja_intr, comintr, sc);
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com_attach_subr(sc);
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}
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