diff --git a/sys/arch/pmax/stand/common/devopen.c b/sys/arch/pmax/stand/common/devopen.c new file mode 100644 index 000000000000..074e4d29ad5e --- /dev/null +++ b/sys/arch/pmax/stand/common/devopen.c @@ -0,0 +1,164 @@ +/* $NetBSD: devopen.c,v 1.12 1999/11/27 03:08:47 simonb Exp $ */ + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Ralph Campbell. + * + * 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 University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + * + * @(#)devopen.c 8.1 (Berkeley) 6/10/93 + */ + +#include + +/* + * Decode the string 'fname', open the device and return the remaining + * file name if any. + */ +int +devopen(f, fname, file) + struct open_file *f; + const char *fname; + char **file; /* out */ +{ + register const char *cp; + register char *ncp; + register struct devsw *dp; + register int c, i; + int ctlr = 0, unit = 0, part = 0; + char namebuf[20]; + int rc; + + cp = fname; + ncp = namebuf; + + /* look for a string like '5/rz0/netbsd' or '5/rz3f/netbsd */ + if ((c = *cp) >= '0' && c <= '9') { + ctlr = c - '0'; + /* skip the '/' */ + if (*++cp != '/') + return (ENXIO); + cp++; + while ((c = *cp) != '\0') { + if (c == '/') + break; + if (c >= '0' && c <= '9') { + /* read unit number */ + unit = c - '0'; + + /* look for a partition */ + if ((c = *++cp) >= 'a' && c <= 'h') { + part = c - 'a'; + c = *++cp; + } + if (c != '/') + return (ENXIO); + break; + } + if (ncp < namebuf + sizeof(namebuf) - 1) + *ncp++ = c; + cp++; + } + } else { + /* expect a string like 'rz(0,0,0)netbsd' */ + while ((c = *cp) != '\0') { + if (c == '(') { + cp++; + break; + } + if (ncp < namebuf + sizeof(namebuf) - 1) + *ncp++ = c; + cp++; + } + + /* get controller number */ + if ((c = *cp) >= '0' && c <= '9') { + ctlr = c - '0'; + c = *++cp; + } + + if (c == ',') { + /* get SCSI device number */ + if ((c = *++cp) >= '0' && c <= '9') { + unit = c - '0'; + c = *++cp; + } + + if (c == ',') { + /* get partition number */ + if ((c = *++cp) >= '0' && c <= '9') { + part = c - '0'; + c = *++cp; + } + } + } + if (c != ')') + return (ENXIO); + cp++; + } + *ncp = '\0'; + +#ifdef LIBSA_SINGLE_DEVICE + rc = DEV_OPEN(dp)(f, ctlr, unit, part); +#else +#ifdef BOOTRZ /* First stage disk boot loader only knows rz devices */ + if (strcmp (namebuf, "rz")) { + printf ("Unknown device: %s\n", namebuf); + return ENXIO; + } + dp = devsw; + i = 0; +#else + for (dp = devsw, i = 0; i < ndevs; dp++, i++) + if (dp->dv_name && strcmp(namebuf, dp->dv_name) == 0) + goto fnd; + printf("Unknown device '%s'\nKnown devices are:", namebuf); + for (dp = devsw, i = 0; i < ndevs; dp++, i++) + if (dp->dv_name) + printf(" %s", dp->dv_name); + printf("\n"); + return (ENXIO); + +fnd: +#endif + rc = (dp->dv_open)(f, ctlr, unit, part); +#endif + if (rc) + return (rc); + +#ifndef LIBSA_SINGLE_DEVICE + f->f_dev = dp; +#endif + if (file && *cp != '\0') + *file = (char *)cp; /* XXX */ + return (0); +}