151 lines
4.4 KiB
C
151 lines
4.4 KiB
C
/* $NetBSD: lpt_ofisa.c,v 1.14 2008/04/08 20:11:36 cegger Exp $ */
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/*
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* Copyright 1997, 1998
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* Digital Equipment Corporation. All rights reserved.
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*
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* This software is furnished under license and may be used and
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* copied only in accordance with the following terms and conditions.
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* Subject to these conditions, you may download, copy, install,
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* use, modify and distribute this software in source and/or binary
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* form. No title or ownership is transferred hereby.
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*
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* 1) Any source code used, modified or distributed must reproduce
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* and retain this copyright notice and list of conditions as
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* they appear in the source file.
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*
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* 2) No right is granted to use any trade name, trademark, or logo of
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* Digital Equipment Corporation. Neither the "Digital Equipment
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* Corporation" name nor any trademark or logo of Digital Equipment
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* Corporation may be used to endorse or promote products derived
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* from this software without the prior written permission of
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* Digital Equipment Corporation.
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*
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* 3) This software is provided "AS-IS" and any express or implied
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* warranties, including but not limited to, any implied warranties
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* of merchantability, fitness for a particular purpose, or
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* non-infringement are disclaimed. In no event shall DIGITAL be
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* liable for any damages whatsoever, and in particular, DIGITAL
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* shall not be liable for special, indirect, consequential, or
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* incidental damages or damages for lost profits, loss of
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* revenue or loss of use, whether such damages arise in contract,
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* negligence, tort, under statute, in equity, at law or otherwise,
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* even if advised of the possibility of such damage.
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*/
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/*
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* OFW Attachment for 'lpt' parallel port driver
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: lpt_ofisa.c,v 1.14 2008/04/08 20:11:36 cegger Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/tty.h>
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#include <sys/intr.h>
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#include <sys/bus.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/isa/isavar.h>
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#include <dev/ofisa/ofisavar.h>
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#include <dev/ic/lptreg.h>
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#include <dev/ic/lptvar.h>
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struct lpt_ofisa_softc {
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struct lpt_softc sc_lpt; /* real "lpt" softc */
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/* OFW ISA-specific goo. */
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void *sc_ih; /* interrupt handler */
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};
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int lpt_ofisa_probe(device_t, cfdata_t , void *);
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void lpt_ofisa_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(lpt_ofisa, sizeof(struct lpt_ofisa_softc),
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lpt_ofisa_probe, lpt_ofisa_attach, NULL, NULL);
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int
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lpt_ofisa_probe(device_t parent, cfdata_t cf, void *aux)
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{
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struct ofisa_attach_args *aa = aux;
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static const char *const compatible_strings[] = { "pnpPNP,401", NULL };
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int rv = 0;
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if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
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rv = 5;
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#ifdef _LPT_OFISA_MD_MATCH
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if (!rv)
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rv = lpt_ofisa_md_match(parent, cf, aux);
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#endif
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return (rv);
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}
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void
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lpt_ofisa_attach(device_t parent, device_t self, void *aux)
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{
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struct lpt_ofisa_softc *osc = device_private(self);
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struct lpt_softc *sc = &osc->sc_lpt;
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struct ofisa_attach_args *aa = aux;
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struct ofisa_reg_desc reg;
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struct ofisa_intr_desc intr;
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int n;
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/*
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* We're living on an ofw. We have to ask the OFW what our
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* registers and interrupts properties look like.
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*
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* We expect exactly one register region and one interrupt.
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*/
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sc->sc_dev = self;
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n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1);
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#ifdef _LPT_OFISA_MD_REG_FIXUP
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n = lpt_ofisa_md_reg_fixup(parent, self, aux, ®, 1, n);
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#endif
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if (n != 1) {
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aprint_error(": error getting register data\n");
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return;
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}
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if (reg.len != 4 && reg.len != 8) {
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aprint_error(": weird register size (%lu, expected 4 or 8)\n",
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(unsigned long)reg.len);
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return;
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}
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n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
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#ifdef _LPT_OFISA_MD_INTR_FIXUP
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n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
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#endif
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if (n != 1) {
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aprint_error(": error getting interrupt data\n");
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return;
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}
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sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
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if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
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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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osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share,
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IPL_TTY, lptintr, sc);
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aprint_normal("\n");
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lpt_attach_subr(sc);
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#if 0
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printf("%s: registers: ", device_xname(&sc->sc_dev));
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ofisa_reg_print(®, 1);
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printf("\n");
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printf("%s: interrupts: ", device_xname(&sc->sc_dev));
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ofisa_intr_print(&intr, 1);
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printf("\n");
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#endif
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}
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