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Diffstat (limited to 'bsps/sparc64/include/genarch/ofw/ofw_tree.h')
| -rw-r--r-- | bsps/sparc64/include/genarch/ofw/ofw_tree.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/bsps/sparc64/include/genarch/ofw/ofw_tree.h b/bsps/sparc64/include/genarch/ofw/ofw_tree.h new file mode 100644 index 0000000000..f62d545527 --- /dev/null +++ b/bsps/sparc64/include/genarch/ofw/ofw_tree.h @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2006 Jakub Jermar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - 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. + * - 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. + */ + +#ifndef KERN_OFW_TREE_H_ +#define KERN_OFW_TREE_H_ + +#include <arch/types.h> +#include <typedefs.h> + +#define OFW_TREE_PROPERTY_MAX_NAMELEN 32 + +/** Memory representation of OpenFirmware device tree node property. */ +typedef struct { + char name[OFW_TREE_PROPERTY_MAX_NAMELEN]; + size_t size; + void *value; +} ofw_tree_property_t; + +/** Memory representation of OpenFirmware device tree node. */ +typedef struct ofw_tree_node { + struct ofw_tree_node *parent; + struct ofw_tree_node *peer; + struct ofw_tree_node *child; + + uint32_t node_handle; /**< Old OpenFirmware node handle. */ + + char *da_name; /**< Disambigued name. */ + + unsigned int properties; /**< Number of properties. */ + ofw_tree_property_t *property; + + /** + * Pointer to a structure representing respective device. + * Its semantics is device dependent. + */ + void *device; +} ofw_tree_node_t; + +/* Walker for visiting OpenFirmware device tree nodes. */ +typedef bool (* ofw_tree_walker_t)(ofw_tree_node_t *, void *); + +extern void ofw_tree_init(ofw_tree_node_t *); +extern void ofw_tree_print(void); + +extern const char *ofw_tree_node_name(const ofw_tree_node_t *); +extern ofw_tree_node_t *ofw_tree_lookup(const char *); +extern ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *, + const char *); +extern void ofw_tree_walk_by_device_type(const char *, ofw_tree_walker_t, + void *); + +extern ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *, const char *); +extern ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *, + const char *); + +extern ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *, + const char *); +extern ofw_tree_node_t *ofw_tree_find_peer_by_name(ofw_tree_node_t *, + const char *); +extern ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *, + uint32_t); + +#endif |