Special Lance buffer glue.
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pk
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/* $NetBSD: lebuffer.c,v 1.1 1996/12/06 21:52:01 pk Exp $ */
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/*
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* Copyright (c) 1996 Paul Kranenburg. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Peter Galbavy.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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/types.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/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sparc/autoconf.h>
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#include <sparc/cpu.h>
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#include <sparc/dev/sbusvar.h>
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#include <sparc/dev/lebuffervar.h>
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#include <sparc/dev/dmareg.h>/*XXX*/
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int lebufprint __P((void *, const char *));
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void lebufattach __P((struct device *, struct device *, void *));
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struct cfattach lebuffer_ca = {
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sizeof(struct lebuf_softc), matchbyname, lebufattach
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};
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struct cfdriver lebuffer_cd = {
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NULL, "lebuffer", DV_DULL
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};
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int
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lebufprint(aux, name)
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void *aux;
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const char *name;
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{
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register struct confargs *ca = aux;
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if (name)
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printf("[%s at %s]", ca->ca_ra.ra_name, name);
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printf(" slot 0x%x offset 0x%x", ca->ca_slot, ca->ca_offset);
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return (UNCONF);
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}
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/*
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* Attach all the sub-devices we can find
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*/
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void
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lebufattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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#if defined(SUN4C) || defined(SUN4M)
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register struct confargs *ca = aux;
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struct lebuf_softc *sc = (void *)self;
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int node;
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struct confargs oca;
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char *name;
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if (ca->ca_ra.ra_vaddr == NULL || ca->ca_ra.ra_nvaddrs == 0)
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ca->ca_ra.ra_vaddr =
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mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len,
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ca->ca_bustype);
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/*
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* This device's "register space" is just a buffer where the
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* Lance ring-buffers can be stored. Note the buffer's location
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* and size, so the `le' driver can pick them up.
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*/
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sc->sc_buffer = (caddr_t)ca->ca_ra.ra_vaddr;
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sc->sc_bufsiz = ca->ca_ra.ra_len;
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/*
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* Get transfer burst size from PROM
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*/
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sc->sc_burst = getpropint(ca->ca_ra.ra_node, "burst-sizes", -1);
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if (sc->sc_burst == -1) {
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/* Check parent SBus for burst sizes */
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int burst = ((struct sbus_softc *)parent)->sc_burst;
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sc->sc_burst = burst ? burst : (SBUS_BURST_32 - 1);
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}
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printf("\n");
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node = sc->sc_node = ca->ca_ra.ra_node;
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if (ca->ca_bustype == BUS_SBUS)
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sbus_establish(&sc->sc_sd, &sc->sc_dev);
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/* Propagate bootpath */
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if (ca->ca_ra.ra_bp != NULL)
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oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
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else
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oca.ca_ra.ra_bp = NULL;
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/* search through children */
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for (node = firstchild(node); node; node = nextsibling(node)) {
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name = getpropstring(node, "name");
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if (!romprop(&oca.ca_ra, name, node))
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continue;
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sbus_translate(parent, &oca);
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oca.ca_bustype = BUS_SBUS;
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(void) config_found(&sc->sc_dev, (void *)&oca, lebufprint);
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}
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#endif /* SUN4C || SUN4M */
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}
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@ -0,0 +1,39 @@
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/* $NetBSD: lebuffervar.h,v 1.1 1996/12/06 21:52:01 pk Exp $ */
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/*
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* Copyright (c) 1996 Paul Kranenburg. All rights reserved.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Paul Kranenburg.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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struct lebuf_softc {
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struct device sc_dev; /* us as a device */
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struct sbusdev sc_sd; /* sbus device */
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u_int sc_rev; /* revision */
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int sc_node; /* PROM node ID */
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int sc_burst; /* DVMA burst size in effect */
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caddr_t sc_buffer; /* VA of the buffer we provide */
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int sc_bufsiz; /* Size of buffer */
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};
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