102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/* $NetBSD: auxio_sbus.c,v 1.1 2015/10/06 16:40:36 martin Exp $ */
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/*
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* Copyright (c) 2000, 2001, 2015 Matthew R. Green
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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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*
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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,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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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/*
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* AUXIO registers support on the sbus & ebus2, used for the floppy driver
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* and to control the system LED, for the BLINK option.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: auxio_sbus.c,v 1.1 2015/10/06 16:40:36 martin Exp $");
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#include "opt_auxio.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/autoconf.h>
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#include <machine/cpu.h>
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#include <dev/ebus/ebusreg.h>
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#include <dev/ebus/ebusvar.h>
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#include <dev/sbus/sbusvar.h>
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#include <sparc64/dev/auxioreg.h>
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#include <sparc64/dev/auxiovar.h>
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static int auxio_sbus_match(device_t, cfdata_t, void *);
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static void auxio_sbus_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(auxio_sbus, sizeof(struct auxio_softc),
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auxio_sbus_match, auxio_sbus_attach, NULL, NULL);
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static int
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auxio_sbus_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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return strcmp(AUXIO_ROM_NAME, sa->sa_name) == 0;
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}
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static void
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auxio_sbus_attach(device_t parent, device_t self, void *aux)
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{
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struct auxio_softc *sc = device_private(self);
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struct sbus_attach_args *sa = aux;
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sc->sc_dev = self;
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sc->sc_tag = sa->sa_bustag;
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if (sa->sa_nreg < 1) {
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printf(": no registers??\n");
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return;
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}
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if (sa->sa_nreg != 1) {
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printf(": not 1 (%d/%d) registers??", sa->sa_nreg,
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sa->sa_npromvaddrs);
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return;
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}
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/* sbus auxio only has one set of registers */
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sc->sc_flags = AUXIO_LEDONLY;
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if (sa->sa_npromvaddrs > 0) {
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sbus_promaddr_to_handle(sc->sc_tag,
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sa->sa_promvaddr, &sc->sc_led);
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} else {
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sbus_bus_map(sc->sc_tag, sa->sa_slot, sa->sa_offset,
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sa->sa_size, 0, &sc->sc_led);
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}
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auxio_attach_common(sc);
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}
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