43b39c1131
userland interface (yet), basically just can detect a TS-DIO24 on a ISA bus and provide an attachment for sub-devices. The TS-DIO24 contains 24 programmable digital input/outputs.
167 lines
4.3 KiB
C
167 lines
4.3 KiB
C
/* $NetBSD: tsdio.c,v 1.1 2005/08/14 03:50:34 joff Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2005 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jesse Off
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: tsdio.c,v 1.1 2005/08/14 03:50:34 joff Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/isa/isareg.h>
|
|
#include <dev/isa/isavar.h>
|
|
#include <dev/isa/isadmavar.h>
|
|
#include <dev/isa/tsdiovar.h>
|
|
|
|
int tsdio_probe(struct device *, struct cfdata *, void *);
|
|
void tsdio_attach(struct device *, struct device *, void *);
|
|
int tsdio_search(struct device *, struct cfdata *, const locdesc_t *, void *);
|
|
int tsdio_print(void *, const char *);
|
|
|
|
CFATTACH_DECL(tsdio, sizeof(struct tsdio_softc),
|
|
tsdio_probe, tsdio_attach, NULL, NULL);
|
|
|
|
int
|
|
tsdio_probe(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
struct isa_attach_args *ia = aux;
|
|
bus_space_tag_t iot = ia->ia_iot;
|
|
bus_space_handle_t dioh;
|
|
int rv = 0, have_io = 0;
|
|
|
|
if (ia->ia_nio < 1)
|
|
return (0);
|
|
if (ia->ia_nirq < 1)
|
|
return (0);
|
|
|
|
if (ISA_DIRECT_CONFIG(ia))
|
|
return (0);
|
|
|
|
/*
|
|
* Disallow wildcarded I/O base.
|
|
*/
|
|
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
|
|
return (0);
|
|
|
|
/*
|
|
* Map the I/O space.
|
|
*/
|
|
if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 8,
|
|
0, &dioh))
|
|
goto out;
|
|
have_io = 1;
|
|
|
|
if (bus_space_read_1(ia->ia_iot, dioh, 0) != 0x54) {
|
|
goto out;
|
|
}
|
|
|
|
rv = 1;
|
|
ia->ia_nio = 1;
|
|
ia->ia_io[0].ir_size = 8;
|
|
ia->ia_niomem = 0;
|
|
ia->ia_nirq = 0;
|
|
ia->ia_ndrq = 0;
|
|
|
|
out:
|
|
if (have_io)
|
|
bus_space_unmap(iot, dioh, 8);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
void
|
|
tsdio_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct tsdio_softc *sc = (struct tsdio_softc *) self;
|
|
struct isa_attach_args *ia = aux;
|
|
|
|
sc->sc_iot = ia->ia_iot;
|
|
|
|
aprint_normal(": Technologic Systems TS-DIO24\n");
|
|
|
|
/*
|
|
* Map the device.
|
|
*/
|
|
if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 8,
|
|
0, &sc->sc_ioh)) {
|
|
aprint_error("%s: unable to map i/o space\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Attach sub-devices
|
|
*/
|
|
config_search_ia(tsdio_search, self, "tsdio", NULL);
|
|
}
|
|
|
|
int
|
|
tsdio_search(parent, cf, l, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
const locdesc_t *l;
|
|
void *aux;
|
|
{
|
|
struct tsdio_softc *sc = (struct tsdio_softc *)parent;
|
|
struct tsdio_attach_args sa;
|
|
|
|
sa.ta_iot = sc->sc_iot;
|
|
sa.ta_ioh = sc->sc_ioh;
|
|
|
|
if (config_match(parent, cf, &sa) > 0)
|
|
config_attach(parent, cf, &sa, tsdio_print);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
tsdio_print(aux, name)
|
|
void *aux;
|
|
const char *name;
|
|
{
|
|
|
|
return (UNCONF);
|
|
}
|