17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
27*d1580181SBryan Cantrill /*
28*d1580181SBryan Cantrill * Copyright (c) 2015 Joyent, Inc. All rights reserved.
29*d1580181SBryan Cantrill */
307c478bd9Sstevel@tonic-gate
317c478bd9Sstevel@tonic-gate #include <sys/promif.h>
327c478bd9Sstevel@tonic-gate #include <sys/promimpl.h>
337c478bd9Sstevel@tonic-gate #include <sys/prom_emul.h>
347c478bd9Sstevel@tonic-gate #include <sys/obpdefs.h>
357c478bd9Sstevel@tonic-gate #include <sys/sunddi.h>
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate static prom_node_t *promif_top;
387c478bd9Sstevel@tonic-gate
39fa9e4066Sahrens static prom_node_t *promif_find_node(pnode_t nodeid);
407c478bd9Sstevel@tonic-gate static int getproplen(prom_node_t *pnp, char *name);
417c478bd9Sstevel@tonic-gate static void *getprop(prom_node_t *pnp, char *name);
427c478bd9Sstevel@tonic-gate
437c478bd9Sstevel@tonic-gate static void
promif_create_prop(prom_node_t * pnp,char * name,void * val,int len,int flags)447c478bd9Sstevel@tonic-gate promif_create_prop(prom_node_t *pnp, char *name, void *val, int len, int flags)
457c478bd9Sstevel@tonic-gate {
467c478bd9Sstevel@tonic-gate struct prom_prop *p, *q;
477c478bd9Sstevel@tonic-gate
487c478bd9Sstevel@tonic-gate q = kmem_zalloc(sizeof (*q), KM_SLEEP);
497c478bd9Sstevel@tonic-gate q->pp_name = kmem_zalloc(strlen(name) + 1, KM_SLEEP);
507c478bd9Sstevel@tonic-gate (void) strcpy(q->pp_name, name);
51*d1580181SBryan Cantrill q->pp_val = len > 0 ? kmem_alloc(len, KM_SLEEP) : NULL;
527c478bd9Sstevel@tonic-gate q->pp_len = len;
537c478bd9Sstevel@tonic-gate switch (flags) {
547c478bd9Sstevel@tonic-gate case DDI_PROP_TYPE_INT:
557c478bd9Sstevel@tonic-gate case DDI_PROP_TYPE_INT64:
567c478bd9Sstevel@tonic-gate /*
577c478bd9Sstevel@tonic-gate * Technically, we need byte-swapping to conform to 1275.
587c478bd9Sstevel@tonic-gate * However, the old x86 prom simulator used little endian
597c478bd9Sstevel@tonic-gate * representation, so we don't swap here either.
607c478bd9Sstevel@tonic-gate *
617c478bd9Sstevel@tonic-gate * NOTE: this is inconsistent with ddi_prop_lookup_*()
627c478bd9Sstevel@tonic-gate * which does byte-swapping when looking up prom properties.
637c478bd9Sstevel@tonic-gate * Since all kernel nodes are SID nodes, drivers no longer
647c478bd9Sstevel@tonic-gate * access PROM properties on x86.
657c478bd9Sstevel@tonic-gate */
667c478bd9Sstevel@tonic-gate default: /* no byte swapping */
677c478bd9Sstevel@tonic-gate (void) bcopy(val, q->pp_val, len);
687c478bd9Sstevel@tonic-gate break;
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate if (pnp->pn_propp == NULL) {
727c478bd9Sstevel@tonic-gate pnp->pn_propp = q;
737c478bd9Sstevel@tonic-gate return;
747c478bd9Sstevel@tonic-gate }
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate for (p = pnp->pn_propp; p->pp_next != NULL; p = p->pp_next)
777c478bd9Sstevel@tonic-gate /* empty */;
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate p->pp_next = q;
807c478bd9Sstevel@tonic-gate }
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate static prom_node_t *
promif_create_node(dev_info_t * dip)837c478bd9Sstevel@tonic-gate promif_create_node(dev_info_t *dip)
847c478bd9Sstevel@tonic-gate {
857c478bd9Sstevel@tonic-gate prom_node_t *pnp;
867c478bd9Sstevel@tonic-gate ddi_prop_t *hwprop;
877c478bd9Sstevel@tonic-gate char *nodename;
887c478bd9Sstevel@tonic-gate
897c478bd9Sstevel@tonic-gate pnp = kmem_zalloc(sizeof (prom_node_t), KM_SLEEP);
907c478bd9Sstevel@tonic-gate pnp->pn_nodeid = DEVI(dip)->devi_nodeid;
917c478bd9Sstevel@tonic-gate
927c478bd9Sstevel@tonic-gate hwprop = DEVI(dip)->devi_hw_prop_ptr;
937c478bd9Sstevel@tonic-gate while (hwprop != NULL) {
947c478bd9Sstevel@tonic-gate /* need to encode to proper endianness */
957c478bd9Sstevel@tonic-gate promif_create_prop(pnp, hwprop->prop_name, hwprop->prop_val,
967c478bd9Sstevel@tonic-gate hwprop->prop_len, hwprop->prop_flags & DDI_PROP_TYPE_MASK);
977c478bd9Sstevel@tonic-gate hwprop = hwprop->prop_next;
987c478bd9Sstevel@tonic-gate }
997c478bd9Sstevel@tonic-gate nodename = ddi_node_name(dip);
1007c478bd9Sstevel@tonic-gate promif_create_prop(pnp, "name", nodename, strlen(nodename) + 1,
1017c478bd9Sstevel@tonic-gate DDI_PROP_TYPE_STRING);
1027c478bd9Sstevel@tonic-gate
1037c478bd9Sstevel@tonic-gate return (pnp);
1047c478bd9Sstevel@tonic-gate }
1057c478bd9Sstevel@tonic-gate
1067c478bd9Sstevel@tonic-gate static void promif_create_children(prom_node_t *, dev_info_t *);
1077c478bd9Sstevel@tonic-gate
1087c478bd9Sstevel@tonic-gate static void
promif_create_peers(prom_node_t * pnp,dev_info_t * dip)1097c478bd9Sstevel@tonic-gate promif_create_peers(prom_node_t *pnp, dev_info_t *dip)
1107c478bd9Sstevel@tonic-gate {
1117c478bd9Sstevel@tonic-gate dev_info_t *ndip = ddi_get_next_sibling(dip);
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate while (ndip) {
1147c478bd9Sstevel@tonic-gate pnp->pn_sibling = promif_create_node(ndip);
1157c478bd9Sstevel@tonic-gate promif_create_children(pnp->pn_sibling, ndip);
1167c478bd9Sstevel@tonic-gate pnp = pnp->pn_sibling;
1177c478bd9Sstevel@tonic-gate ndip = ddi_get_next_sibling(ndip);
1187c478bd9Sstevel@tonic-gate }
1197c478bd9Sstevel@tonic-gate }
1207c478bd9Sstevel@tonic-gate
1217c478bd9Sstevel@tonic-gate static void
promif_create_children(prom_node_t * pnp,dev_info_t * dip)1227c478bd9Sstevel@tonic-gate promif_create_children(prom_node_t *pnp, dev_info_t *dip)
1237c478bd9Sstevel@tonic-gate {
1247c478bd9Sstevel@tonic-gate dev_info_t *cdip = ddi_get_child(dip);
1257c478bd9Sstevel@tonic-gate
1267c478bd9Sstevel@tonic-gate while (cdip) {
1277c478bd9Sstevel@tonic-gate pnp->pn_child = promif_create_node(cdip);
1287c478bd9Sstevel@tonic-gate promif_create_peers(pnp->pn_child, cdip);
1297c478bd9Sstevel@tonic-gate pnp = pnp->pn_child;
1307c478bd9Sstevel@tonic-gate cdip = ddi_get_child(cdip);
1317c478bd9Sstevel@tonic-gate }
1327c478bd9Sstevel@tonic-gate }
1337c478bd9Sstevel@tonic-gate
1347c478bd9Sstevel@tonic-gate void
promif_create_device_tree(void)1357c478bd9Sstevel@tonic-gate promif_create_device_tree(void)
1367c478bd9Sstevel@tonic-gate {
1377c478bd9Sstevel@tonic-gate promif_top = promif_create_node(ddi_root_node());
1387c478bd9Sstevel@tonic-gate promif_create_children(promif_top, ddi_root_node());
1397c478bd9Sstevel@tonic-gate }
1407c478bd9Sstevel@tonic-gate
1417c478bd9Sstevel@tonic-gate static prom_node_t *
find_node_work(prom_node_t * pnp,pnode_t n)142fa9e4066Sahrens find_node_work(prom_node_t *pnp, pnode_t n)
1437c478bd9Sstevel@tonic-gate {
1447c478bd9Sstevel@tonic-gate prom_node_t *qnp;
1457c478bd9Sstevel@tonic-gate
1467c478bd9Sstevel@tonic-gate if (pnp->pn_nodeid == n)
1477c478bd9Sstevel@tonic-gate return (pnp);
1487c478bd9Sstevel@tonic-gate
1497c478bd9Sstevel@tonic-gate if (pnp->pn_child)
1507c478bd9Sstevel@tonic-gate if ((qnp = find_node_work(pnp->pn_child, n)) != NULL)
1517c478bd9Sstevel@tonic-gate return (qnp);
1527c478bd9Sstevel@tonic-gate
1537c478bd9Sstevel@tonic-gate if (pnp->pn_sibling)
1547c478bd9Sstevel@tonic-gate if ((qnp = find_node_work(pnp->pn_sibling, n)) != NULL)
1557c478bd9Sstevel@tonic-gate return (qnp);
1567c478bd9Sstevel@tonic-gate
1577c478bd9Sstevel@tonic-gate return (NULL);
1587c478bd9Sstevel@tonic-gate }
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate static prom_node_t *
promif_find_node(pnode_t nodeid)161fa9e4066Sahrens promif_find_node(pnode_t nodeid)
1627c478bd9Sstevel@tonic-gate {
1637c478bd9Sstevel@tonic-gate if (nodeid == OBP_NONODE)
1647c478bd9Sstevel@tonic-gate return (promif_top);
1657c478bd9Sstevel@tonic-gate
1667c478bd9Sstevel@tonic-gate if (promif_top == NULL)
1677c478bd9Sstevel@tonic-gate return (NULL);
1687c478bd9Sstevel@tonic-gate
1697c478bd9Sstevel@tonic-gate return (find_node_work(promif_top, nodeid));
1707c478bd9Sstevel@tonic-gate }
1717c478bd9Sstevel@tonic-gate
172fa9e4066Sahrens pnode_t
promif_nextnode(pnode_t nodeid)173fa9e4066Sahrens promif_nextnode(pnode_t nodeid)
1747c478bd9Sstevel@tonic-gate {
1757c478bd9Sstevel@tonic-gate prom_node_t *pnp;
1767c478bd9Sstevel@tonic-gate
1777c478bd9Sstevel@tonic-gate /*
1787c478bd9Sstevel@tonic-gate * Note: next(0) returns the root node
1797c478bd9Sstevel@tonic-gate */
1807c478bd9Sstevel@tonic-gate pnp = promif_find_node(nodeid);
1817c478bd9Sstevel@tonic-gate if (pnp && (nodeid == OBP_NONODE))
1827c478bd9Sstevel@tonic-gate return (pnp->pn_nodeid);
1837c478bd9Sstevel@tonic-gate if (pnp && pnp->pn_sibling)
1847c478bd9Sstevel@tonic-gate return (pnp->pn_sibling->pn_nodeid);
1857c478bd9Sstevel@tonic-gate
1867c478bd9Sstevel@tonic-gate return (OBP_NONODE);
1877c478bd9Sstevel@tonic-gate }
1887c478bd9Sstevel@tonic-gate
189fa9e4066Sahrens pnode_t
promif_childnode(pnode_t nodeid)190fa9e4066Sahrens promif_childnode(pnode_t nodeid)
1917c478bd9Sstevel@tonic-gate {
1927c478bd9Sstevel@tonic-gate prom_node_t *pnp;
1937c478bd9Sstevel@tonic-gate
1947c478bd9Sstevel@tonic-gate pnp = promif_find_node(nodeid);
1957c478bd9Sstevel@tonic-gate if (pnp && pnp->pn_child)
1967c478bd9Sstevel@tonic-gate return (pnp->pn_child->pn_nodeid);
1977c478bd9Sstevel@tonic-gate
1987c478bd9Sstevel@tonic-gate return (OBP_NONODE);
1997c478bd9Sstevel@tonic-gate }
2007c478bd9Sstevel@tonic-gate
2017c478bd9Sstevel@tonic-gate /*
2027c478bd9Sstevel@tonic-gate * Retrieve a PROM property (len and value)
2037c478bd9Sstevel@tonic-gate */
2047c478bd9Sstevel@tonic-gate
2057c478bd9Sstevel@tonic-gate static int
getproplen(prom_node_t * pnp,char * name)2067c478bd9Sstevel@tonic-gate getproplen(prom_node_t *pnp, char *name)
2077c478bd9Sstevel@tonic-gate {
2087c478bd9Sstevel@tonic-gate struct prom_prop *propp;
2097c478bd9Sstevel@tonic-gate
2107c478bd9Sstevel@tonic-gate for (propp = pnp->pn_propp; propp != NULL; propp = propp->pp_next)
2117c478bd9Sstevel@tonic-gate if (strcmp(propp->pp_name, name) == 0)
2127c478bd9Sstevel@tonic-gate return (propp->pp_len);
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate return (-1);
2157c478bd9Sstevel@tonic-gate }
2167c478bd9Sstevel@tonic-gate
2177c478bd9Sstevel@tonic-gate int
promif_getproplen(pnode_t nodeid,char * name)218fa9e4066Sahrens promif_getproplen(pnode_t nodeid, char *name)
2197c478bd9Sstevel@tonic-gate {
2207c478bd9Sstevel@tonic-gate prom_node_t *pnp;
2217c478bd9Sstevel@tonic-gate
2227c478bd9Sstevel@tonic-gate pnp = promif_find_node(nodeid);
2237c478bd9Sstevel@tonic-gate if (pnp == NULL)
2247c478bd9Sstevel@tonic-gate return (-1);
2257c478bd9Sstevel@tonic-gate
2267c478bd9Sstevel@tonic-gate return (getproplen(pnp, name));
2277c478bd9Sstevel@tonic-gate }
2287c478bd9Sstevel@tonic-gate
2297c478bd9Sstevel@tonic-gate static void *
getprop(prom_node_t * pnp,char * name)2307c478bd9Sstevel@tonic-gate getprop(prom_node_t *pnp, char *name)
2317c478bd9Sstevel@tonic-gate {
2327c478bd9Sstevel@tonic-gate struct prom_prop *propp;
2337c478bd9Sstevel@tonic-gate
2347c478bd9Sstevel@tonic-gate for (propp = pnp->pn_propp; propp != NULL; propp = propp->pp_next)
2357c478bd9Sstevel@tonic-gate if (strcmp(propp->pp_name, name) == 0)
2367c478bd9Sstevel@tonic-gate return (propp->pp_val);
2377c478bd9Sstevel@tonic-gate
2387c478bd9Sstevel@tonic-gate return (NULL);
2397c478bd9Sstevel@tonic-gate }
2407c478bd9Sstevel@tonic-gate
2417c478bd9Sstevel@tonic-gate int
promif_getprop(pnode_t nodeid,char * name,void * value)242fa9e4066Sahrens promif_getprop(pnode_t nodeid, char *name, void *value)
2437c478bd9Sstevel@tonic-gate {
2447c478bd9Sstevel@tonic-gate prom_node_t *pnp;
2457c478bd9Sstevel@tonic-gate void *v;
2467c478bd9Sstevel@tonic-gate int len;
2477c478bd9Sstevel@tonic-gate
2487c478bd9Sstevel@tonic-gate pnp = promif_find_node(nodeid);
2497c478bd9Sstevel@tonic-gate if (pnp == NULL)
2507c478bd9Sstevel@tonic-gate return (-1);
2517c478bd9Sstevel@tonic-gate
2527c478bd9Sstevel@tonic-gate len = getproplen(pnp, name);
2537c478bd9Sstevel@tonic-gate if (len > 0) {
2547c478bd9Sstevel@tonic-gate v = getprop(pnp, name);
2557c478bd9Sstevel@tonic-gate bcopy(v, value, len);
2567c478bd9Sstevel@tonic-gate }
2577c478bd9Sstevel@tonic-gate return (len);
2587c478bd9Sstevel@tonic-gate }
2597c478bd9Sstevel@tonic-gate
2607c478bd9Sstevel@tonic-gate static char *
nextprop(prom_node_t * pnp,char * name)2617c478bd9Sstevel@tonic-gate nextprop(prom_node_t *pnp, char *name)
2627c478bd9Sstevel@tonic-gate {
2637c478bd9Sstevel@tonic-gate struct prom_prop *propp;
2647c478bd9Sstevel@tonic-gate
2657c478bd9Sstevel@tonic-gate /*
2667c478bd9Sstevel@tonic-gate * getting next of NULL or a null string returns the first prop name
2677c478bd9Sstevel@tonic-gate */
2687c478bd9Sstevel@tonic-gate if (name == NULL || *name == '\0')
2697c478bd9Sstevel@tonic-gate if (pnp->pn_propp)
2707c478bd9Sstevel@tonic-gate return (pnp->pn_propp->pp_name);
2717c478bd9Sstevel@tonic-gate
2727c478bd9Sstevel@tonic-gate for (propp = pnp->pn_propp; propp != NULL; propp = propp->pp_next)
2737c478bd9Sstevel@tonic-gate if (strcmp(propp->pp_name, name) == 0)
2747c478bd9Sstevel@tonic-gate if (propp->pp_next)
2757c478bd9Sstevel@tonic-gate return (propp->pp_next->pp_name);
2767c478bd9Sstevel@tonic-gate
2777c478bd9Sstevel@tonic-gate return (NULL);
2787c478bd9Sstevel@tonic-gate }
2797c478bd9Sstevel@tonic-gate
2807c478bd9Sstevel@tonic-gate char *
promif_nextprop(pnode_t nodeid,char * name,char * next)281fa9e4066Sahrens promif_nextprop(pnode_t nodeid, char *name, char *next)
2827c478bd9Sstevel@tonic-gate {
2837c478bd9Sstevel@tonic-gate prom_node_t *pnp;
2847c478bd9Sstevel@tonic-gate char *s;
2857c478bd9Sstevel@tonic-gate
2867c478bd9Sstevel@tonic-gate next[0] = '\0';
2877c478bd9Sstevel@tonic-gate
2887c478bd9Sstevel@tonic-gate pnp = promif_find_node(nodeid);
2897c478bd9Sstevel@tonic-gate if (pnp == NULL)
2907c478bd9Sstevel@tonic-gate return (NULL);
2917c478bd9Sstevel@tonic-gate
2927c478bd9Sstevel@tonic-gate s = nextprop(pnp, name);
2937c478bd9Sstevel@tonic-gate if (s == NULL)
2947c478bd9Sstevel@tonic-gate return (next);
2957c478bd9Sstevel@tonic-gate
2967c478bd9Sstevel@tonic-gate (void) strcpy(next, s);
2977c478bd9Sstevel@tonic-gate return (next);
2987c478bd9Sstevel@tonic-gate }
299