NetBSD/sys/dev/ofisa/lpt_ofisa.c

152 lines
4.3 KiB
C

/* $NetBSD: lpt_ofisa.c,v 1.2 1998/03/21 02:06:17 cgd Exp $ */
/*
* Copyright 1997, 1998
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
* OFW Attachment for 'lpt' parallel port driver
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/ofw/openfirm.h>
#include <dev/isa/isavar.h>
#include <dev/ofisa/ofisavar.h>
#include <dev/ic/lptreg.h>
#include <dev/ic/lptvar.h>
struct lpt_ofisa_softc {
struct lpt_softc sc_lpt; /* real "lpt" softc */
/* OFW ISA-specific goo. */
void *sc_ih; /* interrupt handler */
};
int lpt_ofisa_probe __P((struct device *, struct cfdata *, void *));
void lpt_ofisa_attach __P((struct device *, struct device *, void *));
struct cfattach lpt_ofisa_ca = {
sizeof(struct lpt_ofisa_softc), lpt_ofisa_probe, lpt_ofisa_attach
};
int
lpt_ofisa_probe(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct ofisa_attach_args *aa = aux;
const char *compatible_strings[] = { "pnpPNP,401", NULL };
int rv = 0;
if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
rv = 5;
#ifdef _LPT_OFISA_MD_MATCH
if (!rv)
rv = lpt_ofisa_md_match(parent, cf, aux);
#endif
return (rv);
}
void
lpt_ofisa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct lpt_ofisa_softc *osc = (void *)self;
struct lpt_softc *sc = &osc->sc_lpt;
struct ofisa_attach_args *aa = aux;
struct ofisa_reg_desc reg;
struct ofisa_intr_desc intr;
int n;
/*
* We're living on an ofw. We have to ask the OFW what our
* registers and interrupts properties look like.
*
* We expect exactly one register region and one interrupt.
*/
n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
#ifdef _LPT_OFISA_MD_REG_FIXUP
n = lpt_ofisa_md_reg_fixup(parent, self, aux, &reg, 1, n);
#endif
if (n != 1) {
printf(": error getting register data\n");
return;
}
if (reg.len != 4 && reg.len != 8) {
printf(": weird register size (%lu, expected 4 or 8)\n",
(unsigned long)reg.len);
return;
}
n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
#ifdef _LPT_OFISA_MD_INTR_FIXUP
n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
#endif
if (n != 1) {
printf(": error getting interrupt data\n");
return;
}
sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
printf(": can't map register space\n");
return;
}
osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share,
IPL_TTY, lptintr, sc);
printf("\n");
lpt_attach_subr(sc);
#if 0
printf("%s: registers: ", sc->sc_dev.dv_xname);
ofisa_reg_print(&reg, 1);
printf("\n");
printf("%s: interrupts: ", sc->sc_dev.dv_xname);
ofisa_intr_print(&intr, 1);
printf("\n");
#endif
}