1 files changed, 147 insertions, 0 deletions
diff --git a/lib/libdevinfo/devinfo.h b/lib/libdevinfo/devinfo.h
new file mode 100644
index 0000000..91930a4
--- /dev/null
+++ b/lib/libdevinfo/devinfo.h
@@ -0,0 +1,147 @@
+/*-
+ * Copyright (c) 2000 Michael Smith
+ * Copyright (c) 2000 BSDi
+ * 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.
+ *
+ *	$FreeBSD$
+ */
+
+#ifndef _DEVINFO_H_INCLUDED
+#define _DEVINFO_H_INCLUDED
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+typedef __uintptr_t	devinfo_handle_t;
+#define DEVINFO_ROOT_DEVICE	((devinfo_handle_t)0)
+
+/*
+ * State of the device.
+ */
+/* XXX not sure if I want a copy here, or expose sys/bus.h */
+typedef enum devinfo_state {
+	DIS_NOTPRESENT,			/* not probed or probe failed */
+	DIS_ALIVE,			/* probe succeeded */
+	DIS_ATTACHED,			/* attach method called */
+	DIS_BUSY			/* device is open */
+} devinfo_state_t;
+
+struct devinfo_dev {
+	devinfo_handle_t	dd_handle;	/* device handle */
+	devinfo_handle_t	dd_parent;	/* parent handle */
+
+	char			*dd_name;	/* name of device */
+	char			*dd_desc;	/* device description */
+	char			*dd_drivername;	/* name of attached driver*/
+	char			*dd_pnpinfo;	/* pnp info from parent bus */
+	char			*dd_location;	/* Where bus thinks dev at */
+	uint32_t		dd_devflags;	/* API flags */
+	uint16_t		dd_flags;	/* internal dev flags */
+	devinfo_state_t		dd_state;	/* attacement state of dev */
+};
+
+struct devinfo_rman {
+	devinfo_handle_t	dm_handle;	/* resource manager handle */
+
+	unsigned long		dm_start;	/* resource start */
+	unsigned long		dm_size;	/* resource size */
+    
+	char			*dm_desc;	/* resource description */
+};
+
+struct devinfo_res {
+	devinfo_handle_t	dr_handle;	/* resource handle */
+	devinfo_handle_t	dr_rman;	/* resource manager handle */
+	devinfo_handle_t	dr_device;	/* owning device */
+
+	unsigned long		dr_start;	/* region start */
+	unsigned long		dr_size;	/* region size */
+	/* XXX add flags */
+};
+
+__BEGIN_DECLS
+
+/*
+ * Acquire a coherent copy of the kernel's device and resource tables.
+ * This must return success (zero) before any other interfaces will
+ * function.  Sets errno on failure.
+ */
+extern int	devinfo_init(void);
+
+/*
+ * Release the storage associated with the internal copy of the device
+ * and resource tables. devinfo_init must be called before any attempt
+ * is made to use any other interfaces.
+ */
+extern void	devinfo_free(void);
+
+/*
+ * Find a device/resource/resource manager by its handle.
+ */
+extern struct devinfo_dev
+	*devinfo_handle_to_device(devinfo_handle_t handle);
+extern struct devinfo_res
+	*devinfo_handle_to_resource(devinfo_handle_t handle);
+extern struct devinfo_rman
+	*devinfo_handle_to_rman(devinfo_handle_t handle);
+
+/*
+ * Iterate over the children of a device, calling (fn) on each.  If
+ * (fn) returns nonzero, abort the scan and return.
+ */
+extern int
+	devinfo_foreach_device_child(struct devinfo_dev *parent, 
+	    int (* fn)(struct devinfo_dev *child, void *arg), 
+	    void *arg);
+
+/*
+ * Iterate over all the resources owned by a device, calling (fn) on each.
+ * If (fn) returns nonzero, abort the scan and return.
+ */
+extern int
+	devinfo_foreach_device_resource(struct devinfo_dev *dev,
+	    int (* fn)(struct devinfo_dev *dev, 
+	    struct devinfo_res *res, void *arg),
+	    void *arg);
+
+/*
+ * Iterate over all the resources owned by a resource manager, calling (fn)
+ * on each.  If (fn) returns nonzero, abort the scan and return.
+ */
+extern int
+	devinfo_foreach_rman_resource(struct devinfo_rman *rman,
+	    int (* fn)(struct devinfo_res *res, void *arg),
+	    void *arg);
+
+/*
+ * Iterate over all the resource managers, calling (fn) on each.  If (fn)
+ * returns nonzero, abort the scan and return.
+ */
+extern int
+	devinfo_foreach_rman(int (* fn)(struct devinfo_rman *rman, void *arg),
+	    void *arg);
+
+__END_DECLS
+
+#endif /* ! _DEVINFO_H_INCLUDED */