133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* $NetBSD: atppc_pioc.c,v 1.1 2004/01/22 13:25:51 bjh21 Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001 Alcove - Nicolas Souchu
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* FreeBSD: src/sys/isa/ppc.c,v 1.26.2.5 2001/10/02 05:21:45 nsouch Exp
|
|
*
|
|
*/
|
|
|
|
#include "opt_atppc.h"
|
|
|
|
#include <sys/param.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: atppc_pioc.c,v 1.1 2004/01/22 13:25:51 bjh21 Exp $");
|
|
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/intr.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <arch/acorn32/mainbus/piocvar.h>
|
|
|
|
#include <dev/ic/atppcreg.h>
|
|
#include <dev/ic/atppcvar.h>
|
|
|
|
#include "locators.h"
|
|
|
|
/* Probe and attach functions for a atppc device on the PIOC. */
|
|
static int atppc_pioc_probe(struct device *, struct cfdata *, void *);
|
|
static void atppc_pioc_attach(struct device *, struct device *, void *);
|
|
|
|
CFATTACH_DECL(atppc_pioc, sizeof(struct atppc_softc), atppc_pioc_probe,
|
|
atppc_pioc_attach, NULL, NULL);
|
|
|
|
#define IO_LPTSIZE 8
|
|
|
|
/*
|
|
* Probe function: find parallel port controller on isa bus. Combined from
|
|
* lpt_isa_probe() in lpt.c and atppc_detect_port() from FreeBSD's ppc.c.
|
|
*/
|
|
static int
|
|
atppc_pioc_probe(struct device *parent, struct cfdata *cf, void *aux)
|
|
{
|
|
bus_space_handle_t ioh;
|
|
struct pioc_attach_args *pa = aux;
|
|
bus_space_tag_t iot = pa->pa_iot;
|
|
int addr = pa->pa_iobase + pa->pa_offset;
|
|
int rval = 0;
|
|
|
|
if (pa->pa_name && strcmp(pa->pa_name, "lpt") != 0)
|
|
return 0;
|
|
|
|
if (pa->pa_offset == PIOCCF_OFFSET_DEFAULT) {
|
|
aprint_error("%s(%s): io port unknown.\n", __func__,
|
|
parent->dv_xname);
|
|
} else if (bus_space_map(iot, addr, IO_LPTSIZE, 0, &ioh) == 0) {
|
|
if (atppc_detect_port(iot, ioh) == 0)
|
|
rval = 1;
|
|
else
|
|
aprint_error("%s(%s): unable to write/read I/O "
|
|
"port.\n", __func__, parent->dv_xname);
|
|
bus_space_unmap(iot, ioh, IO_LPTSIZE);
|
|
} else {
|
|
aprint_error("%s(%s): attempt to map bus space failed.\n",
|
|
__func__, parent->dv_xname);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
/* Attach function: attach and configure parallel port controller on isa bus. */
|
|
static void
|
|
atppc_pioc_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct atppc_softc *sc = (struct atppc_softc *)self;
|
|
struct pioc_attach_args *pa = aux;
|
|
bus_addr_t iobase;
|
|
|
|
sc->sc_iot = pa->pa_iot;
|
|
sc->sc_has = 0;
|
|
iobase = pa->pa_iobase + pa->pa_offset;
|
|
|
|
if (bus_space_map(sc->sc_iot, iobase, IO_LPTSIZE, 0,
|
|
&sc->sc_ioh) != 0) {
|
|
aprint_error(": attempt to map bus space failed, device not "
|
|
"properly attached.\n");
|
|
sc->sc_dev_ok = ATPPC_NOATTACH;
|
|
return;
|
|
}
|
|
sc->sc_dev_ok = ATPPC_ATTACHED;
|
|
|
|
/* Assign interrupt handler */
|
|
if (!(self->dv_cfdata->cf_flags & ATPPC_FLAG_DISABLE_INTR)) {
|
|
if (pa->pa_irq != MAINBUSCF_IRQ_DEFAULT) {
|
|
/* Establish interrupt handler. */
|
|
sc->sc_ieh = intr_claim(pa->pa_irq, IPL_TTY, "atppc",
|
|
atppcintr, sc);
|
|
sc->sc_has |= ATPPC_HAS_INTR;
|
|
} else
|
|
ATPPC_DPRINTF(("%s: IRQ not assigned or bad number of "
|
|
"IRQs.\n", self->dv_xname));
|
|
} else
|
|
ATPPC_VPRINTF(("%s: interrupts not configured due to flags.\n",
|
|
self->dv_xname));
|
|
|
|
/* Run soft configuration attach */
|
|
atppc_sc_attach(sc);
|
|
}
|