Driver for Tadpole 3GX "Power Down Control (Aux 2) Register".
Based on existing auxreg.[ch] (Sparc Aux Register driver).
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jdc
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7840960350
132
sys/arch/sparc/sparc/auxiotwo.c
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132
sys/arch/sparc/sparc/auxiotwo.c
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/* $NetBSD: auxiotwo.c,v 1.1 2000/02/25 18:17:24 jdc Exp $ */
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/*
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* Copyright (c) 1999 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 Julian Coleman.
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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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* Based on software developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory.
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*/
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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/kernel.h>
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#include <machine/autoconf.h>
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#include <sparc/sparc/vaddrs.h>
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#include <sparc/sparc/auxiotwo.h>
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static int auxiotwomatch __P((struct device *, struct cfdata *, void *));
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static void auxiotwoattach
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__P((struct device *, struct device *, void *));
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struct cfattach auxiotwo_obio_ca = {
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sizeof(struct device), auxiotwomatch, auxiotwoattach
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};
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/*
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* The OPENPROM calls this "auxio2".
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*/
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static int
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auxiotwomatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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union obio_attach_args *uoba = aux;
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if (uoba->uoba_isobio4 != 0)
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return (0);
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return (strcmp("auxio2", uoba->uoba_sbus.sa_name) == 0);
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}
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static void
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auxiotwoattach(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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union obio_attach_args *uoba = aux;
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struct sbus_attach_args *sa = &uoba->uoba_sbus;
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bus_space_handle_t bh;
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot, sa->sa_offset,
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sizeof(long),
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BUS_SPACE_MAP_LINEAR,
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0, &bh) != 0) {
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printf("auxiotwoattach: can't map register\n");
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return;
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}
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auxiotwo_reg = (volatile u_char *)bh;
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auxiotwo_regval = *auxiotwo_reg;
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printf("\n");
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/*
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* This powers on the serial ports
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* XXX: this should probably be in the serial attach code.
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*/
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auxiotwobisc(AUXIOTWO_SON, 0);
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/*
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* This powers them off :
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* auxiotwobisc(AUXIOTWO_SOF, 1);
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*/
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}
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unsigned int
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auxiotwobisc(bis, bic)
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int bis, bic;
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{
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register int s;
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if (auxiotwo_reg == 0)
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/*
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* Most machines do not have an `aux2' register; devices that
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* depend on it should not get configured if it's absent.
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*/
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panic("no aux2 register");
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s = splhigh();
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auxiotwo_regval = (auxiotwo_regval | bis) & ~bic;
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*auxiotwo_reg = auxiotwo_regval;
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splx(s);
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return (auxiotwo_regval);
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}
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61
sys/arch/sparc/sparc/auxiotwo.h
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61
sys/arch/sparc/sparc/auxiotwo.h
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@ -0,0 +1,61 @@
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/* $NetBSD: auxiotwo.h,v 1.1 2000/02/25 18:17:24 jdc Exp $ */
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/*
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* Copyright (c) 1999 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 Julian Coleman, Waldi Ravens and Leo Weppelman.
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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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* Based on software developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory.
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*/
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/*
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* The Tadpole Sparcbook 3 technical manual says :
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* bit 5 (0x20) Power Failure Detect (1 = power fail)
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* bit 1 (0x02) Clear Power Fail Detect (1 = clear)
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* bit 0 (0x01) Power Off (1 = off)
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* Setting bit 0 to 1 appears to have no effect. Bits 1:6 are untested
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*/
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#define AUXIOTWO_SOF 0x80 /* Serial ports off (when set) */
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#define AUXIOTWO_PFD 0x20 /* Power Failure Detect */
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#define AUXIOTWO_CPF 0x02 /* Clear Power Fail Detect */
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#define AUXIOTWO_SON 0x01 /* Serial ports on (when cleared) */
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#ifndef _LOCORE
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volatile u_char *auxiotwo_reg;
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u_char auxiotwo_regval;
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unsigned int auxiotwobisc __P((int, int));
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#endif
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