xref: /titanic_41/usr/src/lib/efcode/fcdriver/build_tree.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/stat.h>
30 #include <fcntl.h>
31 #include <unistd.h>
32 #include <stdlib.h>
33 #include <stdio.h>
34 #include <strings.h>
35 #include <fcntl.h>
36 
37 #include <fcode/private.h>
38 #include <fcode/log.h>
39 
40 #include <fcdriver/fcdriver.h>
41 
42 static fc_phandle_t
fc_nodeop(common_data_t * cdp,fc_phandle_t node,char * svc)43 fc_nodeop(common_data_t *cdp, fc_phandle_t node, char *svc)
44 {
45 	fc_cell_t hcell;
46 	int error;
47 
48 	error = fc_run_priv(cdp, svc, 1, 1, fc_phandle2cell(node), &hcell);
49 	if (error)
50 		return (NULL);
51 	return (fc_cell2phandle(hcell));
52 }
53 
54 void
recurse_tree(fcode_env_t * env,device_t * d,void (* fn)(fcode_env_t *,device_t *))55 recurse_tree(fcode_env_t *env, device_t *d,
56     void (*fn)(fcode_env_t *, device_t *))
57 {
58 	if (d != NULL) {
59 		device_t *p;
60 
61 		fn(env, d);
62 		recurse_tree(env, d->child, fn);
63 		recurse_tree(env, d->peer, fn);
64 	}
65 }
66 
67 static void
get_prom_nodeid(fcode_env_t * env,device_t * d)68 get_prom_nodeid(fcode_env_t *env, device_t *d)
69 {
70 	common_data_t *cdp = env->private;
71 	private_data_t *pd = d->private;
72 	char *name;
73 	int namelen;
74 	char *namebuf;
75 
76 	if ((pd != NULL) && (pd->node)) {
77 		if (os_get_prop_common(cdp, pd->node, "name",
78 		    0, &namebuf, &namelen))
79 			namebuf = "<unknown>";
80 		debug_msg(DEBUG_UPLOAD, "Populated: %s = %p\n", namebuf,
81 		    pd->node);
82 		return;
83 	}
84 
85 	name = get_package_name(env, d);
86 	debug_msg(DEBUG_UPLOAD, "Node %s: %p (%p)\n", name, d, pd);
87 	if (d->parent) {
88 		private_data_t *ppd = (private_data_t *) d->parent->private;
89 		fc_phandle_t thisnode;
90 
91 		if (os_get_prop_common(cdp, ppd->node, "name",
92 		    0, &namebuf, &namelen))
93 			namebuf = "<unknown>";
94 		debug_msg(DEBUG_UPLOAD, "Parent: %p (%p) %s = %p\n", d->parent,
95 		    ppd, namebuf, ppd->node);
96 		for (thisnode = fc_nodeop(cdp, ppd->node, FC_CHILD_FCODE);
97 		    thisnode != NULL;
98 		    thisnode = fc_nodeop(cdp, thisnode, FC_PEER_FCODE)) {
99 			int status;
100 
101 			namebuf = "";
102 			namelen = 0;
103 			status = os_get_prop_common(cdp, thisnode, "name",
104 			    0, &namebuf, &namelen);
105 			debug_msg(DEBUG_UPLOAD, "Lookup: %p name '%s'\n"
106 			    " status: %d", thisnode, namebuf, status);
107 			if (status == 0 && strcmp(name, namebuf) == 0)
108 				break;
109 		}
110 		if (thisnode) {
111 			pd = MALLOC(sizeof (private_data_t));
112 			pd->common = cdp;
113 			pd->node = thisnode;
114 			pd->upload = 0;
115 			d->private = pd;
116 			add_my_handle(env, pd->node, d);
117 			install_property_vectors(env, d);
118 			debug_msg(DEBUG_UPLOAD, "Found: %p\n", thisnode);
119 		}
120 	}
121 }
122 
123 static void
update_nodeids(fcode_env_t * env)124 update_nodeids(fcode_env_t *env)
125 {
126 	/*
127 	 * We scan through the tree looking for nodes that don't have
128 	 * one of my structures attached, and for each of those nodes
129 	 * I attempt to match it with a real firmware node
130 	 */
131 	recurse_tree(env, env->root_node, get_prom_nodeid);
132 }
133 
134 static void
build_nodes(fcode_env_t * env,common_data_t * cdp,fc_phandle_t h)135 build_nodes(fcode_env_t *env, common_data_t *cdp, fc_phandle_t h)
136 {
137 	char *name;
138 	int len;
139 	int n, allocd, depth;
140 	fc_phandle_t p;
141 	device_t *current, *attach;
142 	private_data_t *pd;
143 	private_data_t **node_array;
144 
145 	/*
146 	 * This is not nice; new_device calls the allocate_phandle
147 	 * routine without exception, we need to disable the allocation
148 	 * while we are building the tree to the attachment point
149 	 * which is why the init_done variable exists.
150 	 */
151 	cdp->init_done = 0;
152 	node_array = NULL;
153 	depth = 0;
154 	allocd = sizeof (private_data_t *);
155 	do {
156 		node_array = REALLOC(node_array, allocd*(depth+1));
157 		pd = MALLOC(sizeof (private_data_t));
158 		pd->node = h;
159 		node_array[depth] = pd;
160 		name = NULL;
161 		(void) os_get_prop_common(cdp, pd->node, "name", 0, &name,
162 		    &len);
163 		if (name)
164 			debug_msg(DEBUG_UPLOAD, "Node: %p name: '%s'\n", h,
165 			    name);
166 		else
167 			log_message(MSG_ERROR, "Node: %p Unnamed node!!\n", h);
168 		depth++;
169 		h = fc_nodeop(cdp, h, FC_PARENT);
170 	} while (h);
171 
172 	for (n = 0; n < (depth-1); n++) {
173 		new_device(env);
174 	}
175 
176 	env->attachment_pt = current = attach = env->current_device;
177 
178 	for (n = 0; n < depth; n++) {
179 		pd = node_array[n];
180 		pd->common = cdp;
181 		current->private = pd;
182 		add_my_handle(env, pd->node, current);
183 		install_property_vectors(env, current);
184 		current = current->parent;
185 	}
186 
187 	for (current = attach; current != NULL; current = current->parent) {
188 		install_node_data(env, current);
189 		if (current->parent)
190 			finish_device(env);
191 	}
192 
193 	FREE(node_array);
194 	cdp->init_done = 2;
195 	update_nodeids(env);
196 	cdp->init_done = 1;
197 	cdp->first_node = 1;
198 }
199 
200 void
build_tree(fcode_env_t * env)201 build_tree(fcode_env_t *env)
202 {
203 	common_data_t *cdp = env->private;
204 	instance_t *ih;
205 
206 	root_node(env);
207 	ih = open_instance_chain(env, env->current_device, 0);
208 	MYSELF = ih;
209 	build_nodes(env, cdp, cdp->attach);
210 	close_instance_chain(env, ih, 0);
211 	MYSELF = 0;
212 	device_end(env);
213 }
214 
215 /*
216  * Installs /openprom and /packages nodes and sub-nodes.
217  */
218 void
install_builtin_nodes(fcode_env_t * env)219 install_builtin_nodes(fcode_env_t *env)
220 {
221 	common_data_t *cdp = env->private;
222 	int saved_first_node;
223 	int saved_init_done;
224 
225 	if (cdp) {
226 		saved_first_node = cdp->first_node;
227 		saved_init_done = cdp->init_done;
228 		cdp->first_node = 0;
229 		cdp->init_done = 2;
230 		install_openprom_nodes(env);
231 		install_package_nodes(env);
232 		cdp->first_node = saved_first_node;
233 		cdp->init_done = saved_init_done;
234 	}
235 }
236 
237 
238 #pragma init(_init)
239 
240 static void
_init(void)241 _init(void)
242 {
243 	fcode_env_t *env = initial_env;
244 
245 	ASSERT(env);
246 	NOTICE;
247 
248 	FORTH(0,		"update-nodes",		update_nodeids);
249 	FORTH(0,		"build-tree",		build_tree);
250 }
251