[src/nathanw_sa]: src/sys/arch/prep/stand/boot Need <lib/libkern/libkern.h>.

[kleink <kleink%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f3f51603a505
branches:  nathanw_sa
changeset: 504691:f3f51603a505
user:      kleink <kleink%NetBSD.org@localhost>
date:      Mon May 28 15:53:52 2001 +0000

description:
Need <lib/libkern/libkern.h>.

diffstat:

 sys/arch/prep/stand/boot/devopen.c |  165 +++++++++++++++++++++++++++++++++++++
 1 files changed, 165 insertions(+), 0 deletions(-)

diffs (169 lines):

diff -r 02f66a14f6db -r f3f51603a505 sys/arch/prep/stand/boot/devopen.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/prep/stand/boot/devopen.c        Mon May 28 15:53:52 2001 +0000
@@ -0,0 +1,165 @@
+/*     $NetBSD: devopen.c,v 1.2.8.2 2001/05/28 15:53:52 kleink Exp $   */
+
+/*-
+ *  Copyright (c) 1993 John Brezak
+ *  All rights reserved.
+ *
+ *  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. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `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 AUTHOR 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.
+ */
+
+#include <lib/libsa/stand.h>
+#include <lib/libkern/libkern.h>
+
+#define        ispart(c)       ((c) >= 'a' && (c) <= 'h')
+
+int atoi __P((char *));
+int devlookup __P((char *));
+int devparse __P((const char *, int *, int *, int *, int *, int *, char **));
+
+int
+atoi(cp)
+       char *cp;
+{
+       int val = 0;
+
+       while (isdigit(*cp))
+               val = val * 10 + (*cp++ - '0');
+       return (val);
+}
+
+int
+devlookup(d)
+       char *d;
+{
+       struct devsw *dp = devsw;
+       int i;
+
+       for (i = 0; i < ndevs; i++, dp++)
+               if (dp->dv_name && strcmp(dp->dv_name, d) == 0)
+                       return (i);
+
+       printf("No such device - Configured devices are:\n");
+       for (dp = devsw, i = 0; i < ndevs; i++, dp++)
+               if (dp->dv_name)
+                       printf(" %s", dp->dv_name);
+       printf("\n");
+       return (-1);
+}
+
+/*
+ * Parse a device spec in one of two forms.
+ *   dev(ctlr, unit, part)file
+ */
+int
+devparse(fname, dev, adapt, ctlr, unit, part, file)
+       const char *fname;
+       int *dev;
+       int *adapt;
+       int *ctlr;
+       int *unit;
+       int *part;
+       char **file;
+{
+       int argc, flag;
+       char *s, *args[3];
+       extern char nametmp[];
+
+       /* get device name and make lower case */
+       strcpy(nametmp, (char *)fname);
+       for (s = nametmp; *s && *s != '('; s++)
+               if (isupper(*s)) *s = tolower(*s);
+
+       if (*s == '(') {
+               /* lookup device and get index */
+               *s = NULL;
+               if ((*dev = devlookup(nametmp)) < 0)
+                   goto baddev;
+
+               /* tokenize device ident */
+               for (++s, flag = 0, argc = 0; *s && *s != ')'; s++) {
+                       if (*s != ',') {
+                               if (!flag) {
+                                       flag++;
+                                       args[argc++] = s;
+                               }
+                       } else {
+                               if (flag) {
+                                       *s = NULL;
+                                       flag = 0;
+                               }
+                       }
+               }
+               if (*s == ')')
+                       *s = NULL;
+
+               switch (argc) {
+               case 3:
+                   *part = atoi(args[2]);
+                   /* FALL THROUGH */
+               case 2:
+                   *unit = atoi(args[1]);
+                   /* FALL THROUGH */
+               case 1:
+                   *ctlr = atoi(args[0]);
+                   break;
+               }
+               *file = ++s;
+       } else {
+               /* no device present */
+               *file = (char *)fname;
+       }
+       return (0);
+
+baddev:
+       return (EINVAL);
+}
+
+int
+devopen(f, fname, file)
+       struct open_file *f;
+       const char *fname;
+       char **file;
+{
+       int error;
+       int dev = 0, ctlr = 0, unit = 0, part = 0;
+       int adapt = 0;
+       struct devsw *dp = &devsw[0];
+
+       if ((error =
+           devparse(fname, &dev, &adapt, &ctlr, &unit, &part, file)) != 0)
+               return (error);
+
+       dp = &devsw[dev];
+       if (!dp->dv_open)
+               return (ENODEV);
+
+       f->f_dev = dp;
+       if ((error = (*dp->dv_open)(f, ctlr, unit, part)) == 0)
+               return (0);
+
+       printf("%s(%d,%d,%d): %s\n", devsw[dev].dv_name,
+               ctlr, unit, part, strerror(error));
+
+       return (error);
+}