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-rw-r--r--sys/sys/devconf.h108
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diff --git a/sys/sys/devconf.h b/sys/sys/devconf.h
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+/*
+ * Copyright (c) 1994, Garrett A. Wollman. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id: sysctl.h,v 1.17 1994/10/10 00:58:34 phk Exp $
+ */
+
+/*
+ * devconf.h - device configuration table
+ *
+ * Garrett A. Wollman, October 1994.
+ */
+
+#ifndef _SYS_DEVCONF_H_
+#define _SYS_DEVCONF_H_ 1
+
+#include <machine/devconf.h>
+
+#define MAXDEVNAME 32
+
+struct devconf {
+ char dc_name[MAXDEVNAME]; /* name of the device */
+ int dc_unit; /* unit number of the device */
+ int dc_number; /* device unique id */
+ struct machdep_devconf dc_md; /* machine-dependent stuff */
+ size_t dc_datalen; /* length of data */
+ char dc_data[1]; /* variable-length data */
+};
+
+#ifdef KERNEL
+
+struct kern_devconf; /* forward declaration */
+
+/*
+ * These four routines are called from the generic configuration
+ * table code to allow devices to provide their information in a
+ * more useful form.
+ *
+ * EXTERNALIZE: convert internal representation to external and copy out
+ * into user space.
+ */
+typedef int (*kdc_externalize_t)(struct proc *, struct kern_devconf *, void *,
+ size_t);
+/*
+ * INTERNALIZE: copy in from user space, convert to internal representation,
+ * validate, and set configuration.
+ */
+typedef int (*kdc_internalize_t)(struct proc *, struct kern_devconf *, void *,
+ size_t);
+/*
+ * DATALEN: calculate the length of the externalized form
+ */
+typedef size_t (*kdc_datalen_t)(struct kern_devconf *);
+/*
+ * GOAWAY: shut the device down, if possible, and prepare to exit.
+ */
+typedef int (*kdc_goaway_t)(struct kern_devconf *, int);
+
+struct kern_devconf {
+ struct kern_devconf *kdc_next; /* filled in by kern_devconf */
+ struct kern_devconf **kdc_rlink; /* filled in by kern_devconf */
+ int kdc_number; /* filled in by kern_devconf */
+ const char *kdc_name; /* filled in by driver */
+ int kdc_unit; /* filled in by driver */
+ struct machdep_devconf kdc_md; /* filled in by driver */
+ kdc_externalize_t kdc_externalize; /* filled in by driver */
+ kdc_internalize_t kdc_internalize; /* filled in by driver */
+ kdc_datalen_t kdc_datalen; /* filled in by driver */
+ kdc_goaway_t kdc_goaway; /* filled in by driver */
+};
+
+int dev_attach(struct kern_devconf *);
+int dev_detach(struct kern_devconf *);
+int dev_goawayall(int);
+
+#endif /* KERNEL */
+
+/*
+ * HW_DEVCONF sysctl(3) identifiers
+ */
+#define DEVCONF_NUMBER 0 /* get number of devices */
+#define DEVCONF_MAXID 1 /* number of items (not really) */
+
+#define CTL_DEVCONF_NAMES { \
+ { "number", CTLTYPE_INT }, \
+}
+
+#endif /* _SYS_DEVCONF_H_ */