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.
105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
/* $NetBSD: com_obio.c,v 1.4 2006/07/13 22:56:00 gdamore Exp $ */
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/*-
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* Copyright (c) 2001 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 Matt Thomas <matt@3am-software.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 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.4 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/termios.h>
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#include <machine/bus.h>
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#include <arm/xscale/beccreg.h>
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#include <arm/xscale/beccvar.h>
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#include <evbarm/adi_brh/brhreg.h>
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#include <evbarm/adi_brh/obiovar.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_obio_softc {
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struct com_softc sc_com;
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void *sc_ih;
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};
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int com_obio_match(struct device *, struct cfdata *, void *);
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void com_obio_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(com_obio, sizeof(struct com_obio_softc),
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com_obio_match, com_obio_attach, NULL, NULL);
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int
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com_obio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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/* We take it on faith that the device is there. */
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return (1);
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}
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void
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com_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct obio_attach_args *oba = aux;
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struct com_obio_softc *osc = (void *) self;
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struct com_softc *sc = &osc->sc_com;
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bus_space_handle_t ioh;
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int error;
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sc->sc_frequency = BECC_PERIPH_CLOCK;
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sc->sc_hwflags = COM_HW_NO_TXPRELOAD;
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error = bus_space_map(oba->oba_st, oba->oba_addr, 8, 0, &ioh);
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if (error) {
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printf(": failed to map registers: %d\n", error);
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return;
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}
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COM_INIT_REGS(sc->sc_regs, oba->oba_st, ioh, oba->oba_addr);
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com_attach_subr(sc);
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osc->sc_ih = becc_intr_establish(oba->oba_irq, IPL_SERIAL,
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comintr, sc);
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if (osc->sc_ih == NULL)
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printf("%s: unable to establish interrupt at irq %d\n",
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sc->sc_dev.dv_xname, oba->oba_irq);
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}
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