WebSVN – HelenOS – Diff – /branches/sparc/kernel/genarch/src/ofw/ofw_tree.c



    ofw_root = root;
}
 
/** Get OpenFirmware node property.
 *
 * @param node      Node in which to lookup the property.
 * @param name      Name of the property.
 *
 * @return      Pointer to the property structure or NULL if no such
 *          property.
 */
ofw_tree_property_t *
ofw_tree_getprop(const ofw_tree_node_t *node, const char *name)
{
    unsigned int i;
   
    for (i = 0; i < node->properties; i++) {
        if (strcmp(node->property[i].name, name) == 0)

    return NULL;
}
 
/** Return value of the 'name' property.
 *
 * @param node      Node of interest.
 *
 * @return      Value of the 'name' property belonging to the node.
 */
const char *ofw_tree_node_name(const ofw_tree_node_t *node)
{
    ofw_tree_property_t *prop;
   

    return prop->value;
}
 
/** Lookup child of given name.
 *
 * @param node      Node whose child is being looked up.
 * @param name      Name of the child being looked up.
 *
 * @return      NULL if there is no such child or pointer to the
 *          matching child node.
 */
ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name)
{
    ofw_tree_node_t *cur;
   

    return NULL;
}
 
/** Lookup first child of given device type.
 *
 * @param node      Node whose child is being looked up.
 * @param name      Device type of the child being looked up.
 *
 * @return      NULL if there is no such child or pointer to the
 *          matching child node.
 */
ofw_tree_node_t *
ofw_tree_find_child_by_device_type(ofw_tree_node_t *node, const char *name)
{
    ofw_tree_node_t *cur;
    ofw_tree_property_t *prop;
   
    for (cur = node->child; cur; cur = cur->peer) {

/** Lookup node with matching node_handle.
 *
 * Child nodes are looked up recursively contrary to peer nodes that
 * are looked up iteratively to avoid stack overflow.
 *
 * @param root      Root of the searched subtree.
 * @param handle    OpenFirmware handle.
 *
 * @return      NULL if there is no such node or pointer to the matching
 *          node.
 */
ofw_tree_node_t *
ofw_tree_find_node_by_handle(ofw_tree_node_t *root, uint32_t handle)
{
    ofw_tree_node_t *cur;
 
    for (cur = root; cur; cur = cur->peer) {       
        if (cur->node_handle == handle)

    return NULL;   
}
 
/** Lookup first peer of given device type.
 *
 * @param node      Node whose peer is being looked up.
 * @param name      Device type of the child being looked up.
 *
 * @return      NULL if there is no such child or pointer to the
 *          matching child node.
 */
ofw_tree_node_t *
ofw_tree_find_peer_by_device_type(ofw_tree_node_t *node, const char *name)
{
    ofw_tree_node_t *cur;
    ofw_tree_property_t *prop;
   
    for (cur = node->peer; cur; cur = cur->peer) {

}
 
 
/** Lookup first peer of given name.
 *
 * @param node      Node whose peer is being looked up.
 * @param name      Name of the child being looked up.
 *
 * @return      NULL if there is no such peer or pointer to the matching
 *          peer node.
 */
ofw_tree_node_t *
ofw_tree_find_peer_by_name(ofw_tree_node_t *node, const char *name)
 
{
    ofw_tree_node_t *cur;
    ofw_tree_property_t *prop;
   
    for (cur = node->peer; cur; cur = cur->peer) {

    return NULL;
}
 
/** Lookup OpenFirmware node by its path.
 *
 * @param path      Path to the node.
 *
 * @return      NULL if there is no such node or pointer to the leaf
 *          node.
 */
ofw_tree_node_t *ofw_tree_lookup(const char *path)
{
    char buf[NAME_BUF_LEN + 1];
    ofw_tree_node_t *node = ofw_root;
    index_t i, j;
   
    if (path[0] != '/')
        return NULL;

/** Print OpenFirmware device subtree rooted in a node.
 *
 * Child nodes are processed recursively and peer nodes are processed
 * iteratively in order to avoid stack overflow.
 *
 * @param node      Root of the subtree.
 * @param path      Current path, NULL for the very root of the entire tree.
 */
static void ofw_tree_node_print(const ofw_tree_node_t *node, const char *path)
{
    char *p;
    const ofw_tree_node_t *cur;

Rev 3618	Rev 3742
Line 52...	Line 52...
52	ofw_root = root;	52	ofw_root = root;
53	}	53	}
54		54
55	/** Get OpenFirmware node property.	55	/** Get OpenFirmware node property.
56	*	56	*
57	* @param node Node in which to lookup the property.	57	* @param node Node in which to lookup the property.
58	* @param name Name of the property.	58	* @param name Name of the property.
59	*	59	*
60	* @return Pointer to the property structure or NULL if no such property.	60	* @return Pointer to the property structure or NULL if no such
-		61	* property.
61	*/	62	*/
-		63	ofw_tree_property_t *
62	ofw_tree_property_t ofw_tree_getprop(const ofw_tree_node_t node, const char *name)	64	ofw_tree_getprop(const ofw_tree_node_t node, const char name)
63	{	65	{
64	unsigned int i;	66	unsigned int i;
65		67
66	for (i = 0; i < node->properties; i++) {	68	for (i = 0; i < node->properties; i++) {
67	if (strcmp(node->property[i].name, name) == 0)	69	if (strcmp(node->property[i].name, name) == 0)
Line 71...	Line 73...
71	return NULL;	73	return NULL;
72	}	74	}
73		75
74	/** Return value of the 'name' property.	76	/** Return value of the 'name' property.
75	*	77	*
76	* @param node Node of interest.	78	* @param node Node of interest.
77	*	79	*
78	* @return Value of the 'name' property belonging to the node.	80	* @return Value of the 'name' property belonging to the node.
79	*/	81	*/
80	const char ofw_tree_node_name(const ofw_tree_node_t node)	82	const char ofw_tree_node_name(const ofw_tree_node_t node)
81	{	83	{
82	ofw_tree_property_t *prop;	84	ofw_tree_property_t *prop;
83		85
Line 91...	Line 93...
91	return prop->value;	93	return prop->value;
92	}	94	}
93		95
94	/** Lookup child of given name.	96	/** Lookup child of given name.
95	*	97	*
96	* @param node Node whose child is being looked up.	98	* @param node Node whose child is being looked up.
97	* @param name Name of the child being looked up.	99	* @param name Name of the child being looked up.
98	*	100	*
99	* @return NULL if there is no such child or pointer to the matching child node.	101	* @return NULL if there is no such child or pointer to the
-		102	* matching child node.
100	*/	103	*/
101	ofw_tree_node_t ofw_tree_find_child(ofw_tree_node_t node, const char *name)	104	ofw_tree_node_t ofw_tree_find_child(ofw_tree_node_t node, const char *name)
102	{	105	{
103	ofw_tree_node_t *cur;	106	ofw_tree_node_t *cur;
104		107
Line 125...	Line 128...
125	return NULL;	128	return NULL;
126	}	129	}
127		130
128	/** Lookup first child of given device type.	131	/** Lookup first child of given device type.
129	*	132	*
130	* @param node Node whose child is being looked up.	133	* @param node Node whose child is being looked up.
131	* @param name Device type of the child being looked up.	134	* @param name Device type of the child being looked up.
132	*	135	*
133	* @return NULL if there is no such child or pointer to the matching child node.	136	* @return NULL if there is no such child or pointer to the
-		137	* matching child node.
134	*/	138	*/
-		139	ofw_tree_node_t *
135	ofw_tree_node_t ofw_tree_find_child_by_device_type(ofw_tree_node_t node, const char *name)	140	ofw_tree_find_child_by_device_type(ofw_tree_node_t node, const char name)
136	{	141	{
137	ofw_tree_node_t *cur;	142	ofw_tree_node_t *cur;
138	ofw_tree_property_t *prop;	143	ofw_tree_property_t *prop;
139		144
140	for (cur = node->child; cur; cur = cur->peer) {	145	for (cur = node->child; cur; cur = cur->peer) {
Line 151...	Line 156...
151	/** Lookup node with matching node_handle.	156	/** Lookup node with matching node_handle.
152	*	157	*
153	* Child nodes are looked up recursively contrary to peer nodes that	158	* Child nodes are looked up recursively contrary to peer nodes that
154	* are looked up iteratively to avoid stack overflow.	159	* are looked up iteratively to avoid stack overflow.
155	*	160	*
156	* @param root Root of the searched subtree.	161	* @param root Root of the searched subtree.
157	* @param handle OpenFirmware handle.	162	* @param handle OpenFirmware handle.
158	*	163	*
159	* @return NULL if there is no such node or pointer to the matching node.	164	* @return NULL if there is no such node or pointer to the matching
-		165	* node.
160	*/	166	*/
-		167	ofw_tree_node_t *
161	ofw_tree_node_t ofw_tree_find_node_by_handle(ofw_tree_node_t root, uint32_t handle)	168	ofw_tree_find_node_by_handle(ofw_tree_node_t *root, uint32_t handle)
162	{	169	{
163	ofw_tree_node_t *cur;	170	ofw_tree_node_t *cur;
164		171
165	for (cur = root; cur; cur = cur->peer) {	172	for (cur = root; cur; cur = cur->peer) {
166	if (cur->node_handle == handle)	173	if (cur->node_handle == handle)
Line 178...	Line 185...
178	return NULL;	185	return NULL;
179	}	186	}
180		187
181	/** Lookup first peer of given device type.	188	/** Lookup first peer of given device type.
182	*	189	*
183	* @param node Node whose peer is being looked up.	190	* @param node Node whose peer is being looked up.
184	* @param name Device type of the child being looked up.	191	* @param name Device type of the child being looked up.
185	*	192	*
186	* @return NULL if there is no such child or pointer to the matching child node.	193	* @return NULL if there is no such child or pointer to the
-		194	* matching child node.
187	*/	195	*/
-		196	ofw_tree_node_t *
188	ofw_tree_node_t ofw_tree_find_peer_by_device_type(ofw_tree_node_t node, const char *name)	197	ofw_tree_find_peer_by_device_type(ofw_tree_node_t node, const char name)
189	{	198	{
190	ofw_tree_node_t *cur;	199	ofw_tree_node_t *cur;
191	ofw_tree_property_t *prop;	200	ofw_tree_property_t *prop;
192		201
193	for (cur = node->peer; cur; cur = cur->peer) {	202	for (cur = node->peer; cur; cur = cur->peer) {
Line 202...	Line 211...
202	}	211	}
203		212
204		213
205	/** Lookup first peer of given name.	214	/** Lookup first peer of given name.
206	*	215	*
207	* @param node Node whose peer is being looked up.	216	* @param node Node whose peer is being looked up.
208	* @param name Name of the child being looked up.	217	* @param name Name of the child being looked up.
209	*	218	*
210	* @return NULL if there is no such peer or pointer to the matching peer node.	219	* @return NULL if there is no such peer or pointer to the matching
-		220	* peer node.
211	*/	221	*/
-		222	ofw_tree_node_t *
212	ofw_tree_node_t ofw_tree_find_peer_by_name(ofw_tree_node_t node,	223	ofw_tree_find_peer_by_name(ofw_tree_node_t node, const char name)
213	const char *name)	-
214	{	224	{
215	ofw_tree_node_t *cur;	225	ofw_tree_node_t *cur;
216	ofw_tree_property_t *prop;	226	ofw_tree_property_t *prop;
217		227
218	for (cur = node->peer; cur; cur = cur->peer) {	228	for (cur = node->peer; cur; cur = cur->peer) {
Line 226...	Line 236...
226	return NULL;	236	return NULL;
227	}	237	}
228		238
229	/** Lookup OpenFirmware node by its path.	239	/** Lookup OpenFirmware node by its path.
230	*	240	*
231	* @param path Path to the node.	241	* @param path Path to the node.
232	*	242	*
233	* @return NULL if there is no such node or pointer to the leaf node.	243	* @return NULL if there is no such node or pointer to the leaf
-		244	* node.
234	*/	245	*/
235	ofw_tree_node_t ofw_tree_lookup(const char path)	246	ofw_tree_node_t ofw_tree_lookup(const char path)
236	{	247	{
237	char buf[NAME_BUF_LEN+1];	248	char buf[NAME_BUF_LEN + 1];
238	ofw_tree_node_t *node = ofw_root;	249	ofw_tree_node_t *node = ofw_root;
239	index_t i, j;	250	index_t i, j;
240		251
241	if (path[0] != '/')	252	if (path[0] != '/')
242	return NULL;	253	return NULL;
Line 258...	Line 269...
258	/** Print OpenFirmware device subtree rooted in a node.	269	/** Print OpenFirmware device subtree rooted in a node.
259	*	270	*
260	* Child nodes are processed recursively and peer nodes are processed	271	* Child nodes are processed recursively and peer nodes are processed
261	* iteratively in order to avoid stack overflow.	272	* iteratively in order to avoid stack overflow.
262	*	273	*
263	* @param node Root of the subtree.	274	* @param node Root of the subtree.
264	* @param path Current path, NULL for the very root of the entire tree.	275	* @param path Current path, NULL for the very root of the entire tree.
265	*/	276	*/
266	static void ofw_tree_node_print(const ofw_tree_node_t node, const char path)	277	static void ofw_tree_node_print(const ofw_tree_node_t node, const char path)
267	{	278	{
268	char *p;	279	char *p;
269	const ofw_tree_node_t *cur;	280	const ofw_tree_node_t *cur;

Subversion Repositories HelenOS

(root)/branches/sparc/kernel/genarch/src/ofw/ofw_tree.c @ 3773 – Rev 3618 → 3742