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982ea33b89
connects to the keyboard and mouse and needs some special treatment. Until this is fully understood, implemented and tested, simply avoid probing the second Z8530. This is also what the zs(4) driver does.
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* Copyright (c) 2003 Marcel Moolenaar
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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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*
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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, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_puc.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <dev/ofw/ofw_bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#define PUC_ENTRAILS 1
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#include <dev/puc/pucvar.h>
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static int
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puc_sbus_probe(device_t dev)
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{
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const char *nm;
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nm = ofw_bus_get_name(dev);
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if (!strcmp(nm, "zs") && device_get_unit(dev) == 0) {
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device_set_desc(dev, "Zilog Z8530 dual channel SCC");
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return (0);
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}
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return (ENXIO);
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}
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static int
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puc_sbus_attach(device_t dev)
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{
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struct puc_device_description dd;
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int i;
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bzero(&dd, sizeof(dd));
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dd.name = device_get_desc(dev);
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for (i = 0; i < 2; i++) {
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dd.ports[i].type = PUC_PORT_TYPE_UART | PUC_PORT_UART_Z8530;
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dd.ports[i].bar = 0;
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dd.ports[i].offset = 4 - 4 * i;
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dd.ports[i].serialfreq = 0;
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dd.ports[i].flags = PUC_FLAGS_MEMORY;
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dd.ports[i].regshft = 1;
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}
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return (puc_attach(dev, &dd));
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}
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static device_method_t puc_sbus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, puc_sbus_probe),
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DEVMETHOD(device_attach, puc_sbus_attach),
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DEVMETHOD(bus_alloc_resource, puc_alloc_resource),
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DEVMETHOD(bus_release_resource, puc_release_resource),
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DEVMETHOD(bus_get_resource, puc_get_resource),
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DEVMETHOD(bus_read_ivar, puc_read_ivar),
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DEVMETHOD(bus_setup_intr, puc_setup_intr),
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DEVMETHOD(bus_teardown_intr, puc_teardown_intr),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{ 0, 0 }
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};
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static driver_t puc_sbus_driver = {
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"puc",
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puc_sbus_methods,
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sizeof(struct puc_softc),
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};
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DRIVER_MODULE(puc, sbus, puc_sbus_driver, puc_devclass, 0, 0);
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