107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
/* $NetBSD: lpt_ebus.c,v 1.23 2011/07/01 18:48:36 dyoung Exp $ */
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/*
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* Copyright (c) 1999, 2000 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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* NS Super I/O PC87332VLJ "lpt" to ebus attachment
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: lpt_ebus.c,v 1.23 2011/07/01 18:48:36 dyoung Exp $");
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#include <sys/types.h>
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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 <sys/bus.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/ic/lptvar.h>
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int lpt_ebus_match(device_t, cfdata_t , void *);
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void lpt_ebus_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(lpt_ebus, sizeof(struct lpt_softc),
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lpt_ebus_match, lpt_ebus_attach, NULL, NULL);
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#define ROM_LPT_NAME "ecpp"
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int
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lpt_ebus_match(device_t parent, cfdata_t match, void *aux)
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{
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struct ebus_attach_args *ea = aux;
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if (strcmp(ea->ea_name, ROM_LPT_NAME) == 0)
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return (1);
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return (0);
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}
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void
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lpt_ebus_attach(device_t parent, device_t self, void *aux)
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{
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struct lpt_softc *sc = device_private(self);
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struct ebus_attach_args *ea = aux;
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int i;
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sc->sc_dev = self;
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sc->sc_iot = ea->ea_bustag;
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/*
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* Addresses that should be supplied by the prom:
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* - normal lpt registers
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* - ns873xx configuration registers
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* - DMA space
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* The `lpt' driver does not use DMA accesses, so we can
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* ignore that for now. We should enable the lpt port in
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* the ns873xx registers here. XXX
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*
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* Use the prom address if there.
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*/
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if (ea->ea_nvaddr)
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sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0],
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&sc->sc_ioh);
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else if (bus_space_map(sc->sc_iot,
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EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
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ea->ea_reg[0].size,
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0,
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&sc->sc_ioh) != 0) {
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aprint_error(": can't map register space\n");
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return;
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}
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for (i = 0; i < ea->ea_nintr; i++)
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bus_intr_establish(ea->ea_bustag, ea->ea_intr[i],
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IPL_SERIAL, lptintr, sc);
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aprint_normal("\n");
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lpt_attach_subr(sc);
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}
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