154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/* $NetBSD: promdev.c,v 1.11 1998/02/05 04:57:15 gwr Exp $ */
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/*
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* Copyright (c) 1995 Gordon W. Ross
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* Copyright (c) 1993 Paul Kranenburg
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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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* 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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#include <sys/types.h>
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#include <machine/mon.h>
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#include <stand.h>
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#include "libsa.h"
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#include "dvma.h"
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#include "saio.h"
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int promdev_inuse;
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/*
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* Note: caller sets the fields:
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* si->si_boottab
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* si->si_ctlr
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* si->si_unit
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* si->si_boff
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*/
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int
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prom_iopen(si)
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struct saioreq *si;
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{
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struct boottab *ops;
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struct devinfo *dip;
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int i, ctlr, error;
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if (promdev_inuse)
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return(EMFILE);
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ops = si->si_boottab;
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dip = ops->b_devinfo;
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ctlr = si->si_ctlr;
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#ifdef DEBUG_PROM
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if (debug) {
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printf("Boot device type: %s\n", ops->b_desc);
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printf("d_devbytes=%d\n", dip->d_devbytes);
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printf("d_dmabytes=%d\n", dip->d_dmabytes);
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printf("d_localbytes=%d\n", dip->d_localbytes);
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printf("d_devtype=%d\n", dip->d_devtype);
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printf("d_maxiobytes=%d\n", dip->d_maxiobytes);
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printf("d_stdcount=%d\n", dip->d_stdcount);
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for (i = 0; i < dip->d_stdcount; i++)
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printf("d_stdaddrs[i]=0x%x\n",
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i, dip->d_stdaddrs[0]);
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}
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#endif
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if (dip->d_devbytes && dip->d_stdcount) {
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if (ctlr >= dip->d_stdcount) {
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printf("Invalid controller number\n");
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return(ENXIO);
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}
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si->si_devaddr = dev_mapin(dip->d_devtype,
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dip->d_stdaddrs[ctlr], dip->d_devbytes);
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iopen: devaddr=0x%x\n", si->si_devaddr);
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#endif
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}
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if (dip->d_dmabytes) {
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si->si_dmaaddr = dvma_alloc(dip->d_dmabytes);
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iopen: dmaaddr=0x%x\n", si->si_dmaaddr);
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#endif
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}
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if (dip->d_localbytes) {
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si->si_devdata = alloc(dip->d_localbytes);
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iopen: devdata=0x%x\n", si->si_devdata);
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#endif
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}
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/* OK, call the PROM device open routine. */
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iopen: calling prom open...\n");
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#endif
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error = (*ops->b_open)(si);
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if (error != 0) {
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printf("prom_iopen: \"%s\" error=%d\n",
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ops->b_desc, error);
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return (ENXIO);
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}
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iopen: prom open returned %d\n", error);
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#endif
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promdev_inuse++;
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return (0);
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}
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void
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prom_iclose(si)
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struct saioreq *si;
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{
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struct boottab *ops;
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struct devinfo *dip;
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if (promdev_inuse == 0)
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return;
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ops = si->si_boottab;
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dip = ops->b_devinfo;
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#ifdef DEBUG_PROM
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if (debug)
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printf("prom_iclose: calling prom close...\n");
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#endif
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(*ops->b_close)(si);
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promdev_inuse = 0;
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}
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