87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* $NetBSD: simplebus.c,v 1.1 2015/12/13 17:30:40 jmcneill Exp $ */
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/*-
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* Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
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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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* 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,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: simplebus.c,v 1.1 2015/12/13 17:30:40 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/kmem.h>
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#include <sys/bus.h>
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#include <dev/fdt/fdtvar.h>
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static int simplebus_match(device_t, cfdata_t, void *);
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static void simplebus_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(simplebus, 0,
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simplebus_match, simplebus_attach, NULL, NULL);
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static int
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simplebus_match(device_t parent, cfdata_t cf, void *aux)
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{
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const char * const compatible[] = { "simple-bus", NULL };
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const struct fdt_attach_args *faa = aux;
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return of_match_compatible(faa->faa_phandle, compatible);
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}
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static void
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simplebus_attach(device_t parent, device_t self, void *aux)
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{
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const struct fdt_attach_args *faa = aux;
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const int phandle = faa->faa_phandle;
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char *name;
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int len;
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aprint_naive("\n");
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len = OF_getproplen(phandle, "name");
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if (len > 0) {
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name = kmem_zalloc(len, KM_SLEEP);
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if (OF_getprop(phandle, "name", name, len) == len) {
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aprint_normal(": %s\n", name);
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} else {
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aprint_normal("\n");
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}
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kmem_free(name, len);
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} else {
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aprint_normal("\n");
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}
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struct fdt_attach_args nfaa = *faa;
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nfaa.faa_name = "simple-bus";
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nfaa.faa_init = NULL;
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nfaa.faa_ninit = 0;
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nfaa.faa_phandle = phandle;
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config_found(self, &nfaa, NULL);
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}
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