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-rw-r--r--libfdt/fdt.c97
-rw-r--r--libfdt/fdt_ro.c628
-rw-r--r--libfdt/fdt_rw.c240
-rw-r--r--libfdt/fdt_strerror.c54
-rw-r--r--libfdt/fdt_sw.c92
-rw-r--r--libfdt/fdt_wip.c89
-rw-r--r--libfdt/libfdt_internal.h81
7 files changed, 895 insertions, 386 deletions
diff --git a/libfdt/fdt.c b/libfdt/fdt.c
index 212b838..586a361 100644
--- a/libfdt/fdt.c
+++ b/libfdt/fdt.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
@@ -42,9 +74,9 @@ int fdt_check_header(const void *fdt)
return 0;
}
-void *fdt_offset_ptr(const void *fdt, int offset, int len)
+const void *fdt_offset_ptr(const void *fdt, int offset, int len)
{
- void *p;
+ const void *p;
if (fdt_version(fdt) >= 0x11)
if (((offset + len) < offset)
@@ -58,6 +90,45 @@ void *fdt_offset_ptr(const void *fdt, int offset, int len)
return p;
}
+uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset)
+{
+ const uint32_t *tagp, *lenp;
+ uint32_t tag;
+ const char *p;
+
+ if (offset % FDT_TAGSIZE)
+ return -1;
+
+ tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);
+ if (! tagp)
+ return FDT_END; /* premature end */
+ tag = fdt32_to_cpu(*tagp);
+ offset += FDT_TAGSIZE;
+
+ switch (tag) {
+ case FDT_BEGIN_NODE:
+ /* skip name */
+ do {
+ p = fdt_offset_ptr(fdt, offset++, 1);
+ } while (p && (*p != '\0'));
+ if (! p)
+ return FDT_END;
+ break;
+ case FDT_PROP:
+ lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));
+ if (! lenp)
+ return FDT_END;
+ /* skip name offset, length and value */
+ offset += 2*FDT_TAGSIZE + fdt32_to_cpu(*lenp);
+ break;
+ }
+
+ if (nextoffset)
+ *nextoffset = ALIGN(offset, FDT_TAGSIZE);
+
+ return tag;
+}
+
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s)
{
int len = strlen(s) + 1;
diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c
index 5816c7a..12a37d5 100644
--- a/libfdt/fdt_ro.c
+++ b/libfdt/fdt_ro.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
@@ -23,14 +55,15 @@
#include "libfdt_internal.h"
-#define CHECK_HEADER(fdt) { \
- int err; \
- if ((err = fdt_check_header(fdt)) != 0) \
- return err; \
-}
+#define CHECK_HEADER(fdt) \
+ { \
+ int err; \
+ if ((err = fdt_check_header(fdt)) != 0) \
+ return err; \
+ }
-static int offset_streq(const void *fdt, int offset,
- const char *s, int len)
+static int nodename_eq(const void *fdt, int offset,
+ const char *s, int len)
{
const char *p = fdt_offset_ptr(fdt, offset, len+1);
@@ -41,57 +74,36 @@ static int offset_streq(const void *fdt, int offset,
if (memcmp(p, s, len) != 0)
return 0;
- if (p[len] != '\0')
+ if (p[len] == '\0')
+ return 1;
+ else if (!memchr(s, '@', len) && (p[len] == '@'))
+ return 1;
+ else
return 0;
-
- return 1;
}
-/*
- * Checks if the property name matches.
- */
-static int prop_name_eq(const void *fdt, int offset, const char *name,
- struct fdt_property **prop, int *lenp)
+const char *fdt_string(const void *fdt, int stroffset)
{
- int namestroff, len;
-
- *prop = fdt_offset_ptr_typed(fdt, offset, *prop);
- if (! *prop)
- return -FDT_ERR_BADSTRUCTURE;
+ return (char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
+}
- namestroff = fdt32_to_cpu((*prop)->nameoff);
- if (streq(fdt_string(fdt, namestroff), name)) {
- len = fdt32_to_cpu((*prop)->len);
- *prop = fdt_offset_ptr(fdt, offset,
- sizeof(**prop) + len);
- if (*prop) {
- if (lenp)
- *lenp = len;
- return 1;
- } else
- return -FDT_ERR_BADSTRUCTURE;
- }
+int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
+{
+ CHECK_HEADER(fdt);
+ *address = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->address);
+ *size = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->size);
return 0;
}
-/*
- * Return a pointer to the string at the given string offset.
- */
-char *fdt_string(const void *fdt, int stroffset)
+int fdt_num_mem_rsv(const void *fdt)
{
- return (char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
+ int i = 0;
+
+ while (fdt64_to_cpu(_fdt_mem_rsv(fdt, i)->size) != 0)
+ i++;
+ return i;
}
-/*
- * Return the node offset of the node specified by:
- * parentoffset - starting place (0 to start at the root)
- * name - name being searched for
- * namelen - length of the name: typically strlen(name)
- *
- * Notes:
- * If the start node has subnodes, the subnodes are _not_ searched for the
- * requested name.
- */
int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
const char *name, int namelen)
{
@@ -101,13 +113,13 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
CHECK_HEADER(fdt);
- tag = fdt_next_tag(fdt, parentoffset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, parentoffset, &nextoffset);
if (tag != FDT_BEGIN_NODE)
return -FDT_ERR_BADOFFSET;
do {
offset = nextoffset;
- tag = fdt_next_tag(fdt, offset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
@@ -115,15 +127,10 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
case FDT_BEGIN_NODE:
level++;
- /*
- * If we are nested down levels, ignore the strings
- * until we get back to the proper level.
- */
if (level != 1)
continue;
-
- /* Return the offset if this is "our" string. */
- if (offset_streq(fdt, offset+FDT_TAGSIZE, name, namelen))
+ if (nodename_eq(fdt, offset+FDT_TAGSIZE, name, namelen))
+ /* Found it! */
return offset;
break;
@@ -143,20 +150,13 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
return -FDT_ERR_NOTFOUND;
}
-/*
- * See fdt_subnode_offset_namelen()
- */
int fdt_subnode_offset(const void *fdt, int parentoffset,
const char *name)
{
return fdt_subnode_offset_namelen(fdt, parentoffset, name, strlen(name));
}
-/*
- * Searches for the node corresponding to the given path and returns the
- * offset of that node.
- */
-int fdt_find_node_by_path(const void *fdt, const char *path)
+int fdt_path_offset(const void *fdt, const char *path)
{
const char *end = path + strlen(path);
const char *p = path;
@@ -164,37 +164,21 @@ int fdt_find_node_by_path(const void *fdt, const char *path)
CHECK_HEADER(fdt);
- /* Paths must be absolute */
if (*path != '/')
return -FDT_ERR_BADPATH;
- /* Handle the root path: root offset is 0 */
- if (strcmp(path, "/") == 0)
- return 0;
-
while (*p) {
const char *q;
- /* Skip path separator(s) */
while (*p == '/')
p++;
if (! *p)
- return -FDT_ERR_BADPATH;
-
- /*
- * Find the next path separator. The characters between
- * p and q are the next segment of the the path to find.
- */
+ return offset;
q = strchr(p, '/');
if (! q)
q = end;
- /*
- * Find the offset corresponding to the this path segment.
- */
offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
-
- /* Oops, error, abort abort abort */
if (offset < 0)
return offset;
@@ -204,17 +188,37 @@ int fdt_find_node_by_path(const void *fdt, const char *path)
return offset;
}
-/*
- * Given the offset of a node and a name of a property in that node, return
- * a pointer to the property struct.
- */
-struct fdt_property *fdt_get_property(const void *fdt,
- int nodeoffset,
- const char *name, int *lenp)
+const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
+{
+ const struct fdt_node_header *nh;
+ int err;
+
+ if ((err = fdt_check_header(fdt)) != 0)
+ goto fail;
+
+ err = -FDT_ERR_BADOFFSET;
+ nh = fdt_offset_ptr(fdt, nodeoffset, sizeof(*nh));
+ if (!nh || (fdt32_to_cpu(nh->tag) != FDT_BEGIN_NODE))
+ goto fail;
+
+ if (len)
+ *len = strlen(nh->name);
+
+ return nh->name;
+
+ fail:
+ if (len)
+ *len = err;
+ return NULL;
+}
+
+const struct fdt_property *fdt_get_property(const void *fdt,
+ int nodeoffset,
+ const char *name, int *lenp)
{
- int level = 0;
uint32_t tag;
- struct fdt_property *prop;
+ const struct fdt_property *prop;
+ int namestroff;
int offset, nextoffset;
int err;
@@ -225,63 +229,59 @@ struct fdt_property *fdt_get_property(const void *fdt,
if (nodeoffset % FDT_TAGSIZE)
goto fail;
- tag = fdt_next_tag(fdt, nodeoffset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
if (tag != FDT_BEGIN_NODE)
goto fail;
do {
offset = nextoffset;
- tag = fdt_next_tag(fdt, offset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
err = -FDT_ERR_TRUNCATED;
goto fail;
case FDT_BEGIN_NODE:
- level++;
- break;
-
case FDT_END_NODE:
- level--;
+ case FDT_NOP:
break;
case FDT_PROP:
- /*
- * If we are nested down levels, ignore the strings
- * until we get back to the proper level.
- */
- if (level != 0)
- continue;
-
- err = prop_name_eq(fdt, offset, name, &prop, lenp);
- if (err > 0)
- return prop;
- else if (err < 0)
+ err = -FDT_ERR_BADSTRUCTURE;
+ prop = fdt_offset_ptr(fdt, offset, sizeof(*prop));
+ if (! prop)
goto fail;
- break;
+ namestroff = fdt32_to_cpu(prop->nameoff);
+ if (streq(fdt_string(fdt, namestroff), name)) {
+ /* Found it! */
+ int len = fdt32_to_cpu(prop->len);
+ prop = fdt_offset_ptr(fdt, offset,
+ sizeof(*prop)+len);
+ if (! prop)
+ goto fail;
+
+ if (lenp)
+ *lenp = len;
- case FDT_NOP:
+ return prop;
+ }
break;
default:
err = -FDT_ERR_BADSTRUCTURE;
goto fail;
}
- } while (level >= 0);
+ } while ((tag != FDT_BEGIN_NODE) && (tag != FDT_END_NODE));
err = -FDT_ERR_NOTFOUND;
-fail:
+ fail:
if (lenp)
*lenp = err;
return NULL;
}
-/*
- * Given the offset of a node and a name of a property in that node, return
- * a pointer to the property data (ONLY).
- */
-void *fdt_getprop(const void *fdt, int nodeoffset,
+const void *fdt_getprop(const void *fdt, int nodeoffset,
const char *name, int *lenp)
{
const struct fdt_property *prop;
@@ -290,130 +290,294 @@ void *fdt_getprop(const void *fdt, int nodeoffset,
if (! prop)
return NULL;
- return (void *)prop->data;
+ return prop->data;
}
+uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
+{
+ const uint32_t *php;
+ int len;
-uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset, char **namep)
+ php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
+ if (!php || (len != sizeof(*php)))
+ return 0;
+
+ return fdt32_to_cpu(*php);
+}
+
+int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
{
- const uint32_t *tagp, *lenp;
uint32_t tag;
- const char *p;
-
- if (offset % FDT_TAGSIZE)
- return -1;
-
- tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);
- if (! tagp)
- return FDT_END; /* premature end */
- tag = fdt32_to_cpu(*tagp);
- offset += FDT_TAGSIZE;
-
- switch (tag) {
- case FDT_BEGIN_NODE:
- if(namep)
- *namep = fdt_offset_ptr(fdt, offset, 1);
-
- /* skip name */
- do {
- p = fdt_offset_ptr(fdt, offset++, 1);
- } while (p && (*p != '\0'));
- if (! p)
- return FDT_END;
- break;
- case FDT_PROP:
- lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));
- if (! lenp)
- return FDT_END;
- /*
- * Get the property and set the namep to the name.
- */
- if(namep) {
- struct fdt_property *prop;
-
- prop = fdt_offset_ptr_typed(fdt, offset - FDT_TAGSIZE, prop);
- if (! prop)
- return -FDT_ERR_BADSTRUCTURE;
- *namep = fdt_string(fdt, fdt32_to_cpu(prop->nameoff));
+ int p = 0, overflow = 0;
+ int offset, nextoffset, namelen;
+ const char *name;
+
+ CHECK_HEADER(fdt);
+
+ tag = fdt_next_tag(fdt, 0, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return -FDT_ERR_BADSTRUCTURE;
+
+ if (buflen < 2)
+ return -FDT_ERR_NOSPACE;
+ buf[0] = '/';
+ p = 1;
+
+ while (nextoffset <= nodeoffset) {
+ offset = nextoffset;
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
+ switch (tag) {
+ case FDT_END:
+ return -FDT_ERR_BADOFFSET;
+
+ case FDT_BEGIN_NODE:
+ name = fdt_get_name(fdt, offset, &namelen);
+ if (!name)
+ return namelen;
+ if (overflow || ((p + namelen + 1) > buflen)) {
+ overflow++;
+ break;
+ }
+ memcpy(buf + p, name, namelen);
+ p += namelen;
+ buf[p++] = '/';
+ break;
+
+ case FDT_END_NODE:
+ if (overflow) {
+ overflow--;
+ break;
+ }
+ do {
+ p--;
+ } while (buf[p-1] != '/');
+ break;
+
+ case FDT_PROP:
+ case FDT_NOP:
+ break;
+
+ default:
+ return -FDT_ERR_BADSTRUCTURE;
}
- /* skip name offset, length and value */
- offset += 2*FDT_TAGSIZE + fdt32_to_cpu(*lenp);
- break;
}
- if (nextoffset)
- *nextoffset = ALIGN(offset, FDT_TAGSIZE);
+ if (overflow)
+ return -FDT_ERR_NOSPACE;
- return tag;
+ if (p > 1) /* special case so that root path is "/", not "" */
+ p--;
+ buf[p] = '\0';
+ return p;
}
-/*
- * Return the number of used reserve map entries and total slots available.
- */
-int fdt_num_reservemap(void *fdt, int *used, int *total)
+int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
+ int supernodedepth, int *nodedepth)
+{
+ int level = -1;
+ uint32_t tag;
+ int offset, nextoffset = 0;
+ int supernodeoffset = -FDT_ERR_INTERNAL;
+
+ CHECK_HEADER(fdt);
+
+ if (supernodedepth < 0)
+ return -FDT_ERR_NOTFOUND;
+
+ do {
+ offset = nextoffset;
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
+ switch (tag) {
+ case FDT_END:
+ return -FDT_ERR_BADOFFSET;
+
+ case FDT_BEGIN_NODE:
+ level++;
+ if (level == supernodedepth)
+ supernodeoffset = offset;
+ break;
+
+ case FDT_END_NODE:
+ level--;
+ break;
+
+ case FDT_PROP:
+ case FDT_NOP:
+ break;
+
+ default:
+ return -FDT_ERR_BADSTRUCTURE;
+ }
+ } while (offset < nodeoffset);
+
+ if (nodedepth)
+ *nodedepth = level;
+
+ if (supernodedepth > level)
+ return -FDT_ERR_NOTFOUND;
+ return supernodeoffset;
+}
+
+int fdt_node_depth(const void *fdt, int nodeoffset)
{
- struct fdt_reserve_entry *re;
- int start;
- int end;
- int err = fdt_check_header(fdt);
-
- if (err != 0)
- return err;
-
- start = fdt_off_mem_rsvmap(fdt);
-
- /*
- * Convention is that the reserve map is before the dt_struct,
- * but it does not have to be.
- */
- end = fdt_totalsize(fdt);
- if (end > fdt_off_dt_struct(fdt))
- end = fdt_off_dt_struct(fdt);
- if (end > fdt_off_dt_strings(fdt))
- end = fdt_off_dt_strings(fdt);
-
- /*
- * Since the reserved area list is zero terminated, you get one fewer.
- */
- if (total)
- *total = ((end - start) / sizeof(struct fdt_reserve_entry)) - 1;
-
- if (used) {
- *used = 0;
- while (start < end) {
- re = (struct fdt_reserve_entry *)(fdt + start);
- if (re->size == 0)
- return 0; /* zero size terminates the list */
-
- *used += 1;
- start += sizeof(struct fdt_reserve_entry);
+ int nodedepth;
+ int err;
+
+ err = fdt_supernode_atdepth_offset(fdt, nodeoffset, 0, &nodedepth);
+ if (err)
+ return (err < 0) ? err : -FDT_ERR_INTERNAL;
+ return nodedepth;
+}
+
+int fdt_parent_offset(const void *fdt, int nodeoffset)
+{
+ int nodedepth = fdt_node_depth(fdt, nodeoffset);
+
+ if (nodedepth < 0)
+ return nodedepth;
+ return fdt_supernode_atdepth_offset(fdt, nodeoffset,
+ nodedepth - 1, NULL);
+}
+
+int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
+ const char *propname,
+ const void *propval, int proplen)
+{
+ uint32_t tag;
+ int offset, nextoffset;
+ const void *val;
+ int len;
+
+ CHECK_HEADER(fdt);
+
+ if (startoffset >= 0) {
+ tag = fdt_next_tag(fdt, startoffset, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return -FDT_ERR_BADOFFSET;
+ } else {
+ nextoffset = 0;
+ }
+
+ /* FIXME: The algorithm here is pretty horrible: we scan each
+ * property of a node in fdt_getprop(), then if that didn't
+ * find what we want, we scan over them again making our way
+ * to the next node. Still it's the easiest to implement
+ * approach; performance can come later. */
+ do {
+ offset = nextoffset;
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
+
+ switch (tag) {
+ case FDT_BEGIN_NODE:
+ val = fdt_getprop(fdt, offset, propname, &len);
+ if (val
+ && (len == proplen)
+ && (memcmp(val, propval, len) == 0))
+ return offset;
+ break;
+
+ case FDT_PROP:
+ case FDT_END:
+ case FDT_END_NODE:
+ case FDT_NOP:
+ break;
+
+ default:
+ return -FDT_ERR_BADSTRUCTURE;
}
- /*
- * If we get here, there was no zero size termination.
- */
- return -FDT_ERR_BADLAYOUT;
+ } while (tag != FDT_END);
+
+ return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
+{
+ if ((phandle == 0) || (phandle == -1))
+ return -FDT_ERR_BADPHANDLE;
+ phandle = cpu_to_fdt32(phandle);
+ return fdt_node_offset_by_prop_value(fdt, -1, "linux,phandle",
+ &phandle, sizeof(phandle));
+}
+
+int _stringlist_contains(const void *strlist, int listlen, const char *str)
+{
+ int len = strlen(str);
+ const void *p;
+
+ while (listlen >= len) {
+ if (memcmp(str, strlist, len+1) == 0)
+ return 1;
+ p = memchr(strlist, '\0', listlen);
+ if (!p)
+ return 0; /* malformed strlist.. */
+ listlen -= (p-strlist) + 1;
+ strlist = p + 1;
}
return 0;
}
-/*
- * Return the nth reserve map entry.
- */
-int fdt_get_reservemap(void *fdt, int n, struct fdt_reserve_entry *re)
+int fdt_node_check_compatible(const void *fdt, int nodeoffset,
+ const char *compatible)
{
- int used;
- int total;
- int err;
+ const void *prop;
+ int len;
- err = fdt_num_reservemap(fdt, &used, &total);
- if (err != 0)
- return err;
+ prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
+ if (!prop)
+ return len;
+ if (_stringlist_contains(prop, len, compatible))
+ return 0;
+ else
+ return 1;
+}
- if (n >= total)
- return -FDT_ERR_NOSPACE;
- if (re) {
- *re = *(struct fdt_reserve_entry *)
- _fdt_offset_ptr(fdt, n * sizeof(struct fdt_reserve_entry));
+int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
+ const char *compatible)
+{
+ uint32_t tag;
+ int offset, nextoffset;
+ int err;
+
+ CHECK_HEADER(fdt);
+
+ if (startoffset >= 0) {
+ tag = fdt_next_tag(fdt, startoffset, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return -FDT_ERR_BADOFFSET;
+ } else {
+ nextoffset = 0;
}
- return 0;
+
+ /* FIXME: The algorithm here is pretty horrible: we scan each
+ * property of a node in fdt_node_check_compatible(), then if
+ * that didn't find what we want, we scan over them again
+ * making our way to the next node. Still it's the easiest to
+ * implement approach; performance can come later. */
+ do {
+ offset = nextoffset;
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
+
+ switch (tag) {
+ case FDT_BEGIN_NODE:
+ err = fdt_node_check_compatible(fdt, offset,
+ compatible);
+ if ((err < 0)
+ && (err != -FDT_ERR_NOTFOUND))
+ return err;
+ else if (err == 0)
+ return offset;
+ break;
+
+ case FDT_PROP:
+ case FDT_END:
+ case FDT_END_NODE:
+ case FDT_NOP:
+ break;
+
+ default:
+ return -FDT_ERR_BADSTRUCTURE;
+ }
+ } while (tag != FDT_END);
+
+ return -FDT_ERR_NOTFOUND;
}
diff --git a/libfdt/fdt_rw.c b/libfdt/fdt_rw.c
index aaafc53..dfe5628 100644
--- a/libfdt/fdt_rw.c
+++ b/libfdt/fdt_rw.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
@@ -23,25 +55,32 @@
#include "libfdt_internal.h"
+static int _blocks_misordered(const void *fdt,
+ int mem_rsv_size, int struct_size)
+{
+ return (fdt_off_mem_rsvmap(fdt) < ALIGN(sizeof(struct fdt_header), 8))
+ || (fdt_off_dt_struct(fdt) <
+ (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))
+ || (fdt_off_dt_strings(fdt) <
+ (fdt_off_dt_struct(fdt) + struct_size))
+ || (fdt_totalsize(fdt) <
+ (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
+}
+
static int rw_check_header(void *fdt)
{
int err;
if ((err = fdt_check_header(fdt)))
return err;
- if (fdt_version(fdt) < 0x11)
+ if (fdt_version(fdt) < 17)
return -FDT_ERR_BADVERSION;
- if (fdt_off_mem_rsvmap(fdt) < ALIGN(sizeof(struct fdt_header), 8))
- return -FDT_ERR_BADLAYOUT;
- if (fdt_off_dt_struct(fdt) <
- (fdt_off_mem_rsvmap(fdt) + sizeof(struct fdt_reserve_entry)))
- return -FDT_ERR_BADLAYOUT;
- if (fdt_off_dt_strings(fdt) <
- (fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt)))
- return -FDT_ERR_BADLAYOUT;
- if (fdt_totalsize(fdt) <
- (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)))
+ if (_blocks_misordered(fdt, sizeof(struct fdt_reserve_entry),
+ fdt_size_dt_struct(fdt)))
return -FDT_ERR_BADLAYOUT;
+ if (fdt_version(fdt) > 17)
+ fdt_set_version(fdt, 17);
+
return 0;
}
@@ -69,6 +108,19 @@ static int _blob_splice(void *fdt, void *p, int oldlen, int newlen)
return 0;
}
+static int _blob_splice_mem_rsv(void *fdt, struct fdt_reserve_entry *p,
+ int oldn, int newn)
+{
+ int delta = (newn - oldn) * sizeof(*p);
+ int err;
+ err = _blob_splice(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));
+ if (err)
+ return err;
+ fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);
+ fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
+ return 0;
+}
+
static int _blob_splice_struct(void *fdt, void *p,
int oldlen, int newlen)
{
@@ -78,8 +130,8 @@ static int _blob_splice_struct(void *fdt, void *p,
if ((err = _blob_splice(fdt, p, oldlen, newlen)))
return err;
- fdt_set_header(fdt, size_dt_struct, fdt_size_dt_struct(fdt) + delta);
- fdt_set_header(fdt, off_dt_strings, fdt_off_dt_strings(fdt) + delta);
+ fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
+ fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
return 0;
}
@@ -91,7 +143,7 @@ static int _blob_splice_string(void *fdt, int newlen)
if ((err = _blob_splice(fdt, p, 0, newlen)))
return err;
- fdt_set_header(fdt, size_dt_strings, fdt_size_dt_strings(fdt) + newlen);
+ fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);
return 0;
}
@@ -117,13 +169,47 @@ static int _find_add_string(void *fdt, const char *s)
return (new - strtab);
}
+int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)
+{
+ struct fdt_reserve_entry *re;
+ int err;
+
+ if ((err = rw_check_header(fdt)))
+ return err;
+
+ re = _fdt_mem_rsv_w(fdt, fdt_num_mem_rsv(fdt));
+ err = _blob_splice_mem_rsv(fdt, re, 0, 1);
+ if (err)
+ return err;
+
+ re->address = cpu_to_fdt64(address);
+ re->size = cpu_to_fdt64(size);
+ return 0;
+}
+
+int fdt_del_mem_rsv(void *fdt, int n)
+{
+ struct fdt_reserve_entry *re = _fdt_mem_rsv_w(fdt, n);
+ int err;
+
+ if ((err = rw_check_header(fdt)))
+ return err;
+ if (n >= fdt_num_mem_rsv(fdt))
+ return -FDT_ERR_NOTFOUND;
+
+ err = _blob_splice_mem_rsv(fdt, re, 1, 0);
+ if (err)
+ return err;
+ return 0;
+}
+
static int _resize_property(void *fdt, int nodeoffset, const char *name, int len,
struct fdt_property **prop)
{
int oldlen;
int err;
- *prop = fdt_get_property(fdt, nodeoffset, name, &oldlen);
+ *prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
if (! (*prop))
return oldlen;
@@ -145,7 +231,7 @@ static int _add_property(void *fdt, int nodeoffset, const char *name, int len,
int namestroff;
int err;
- tag = fdt_next_tag(fdt, nodeoffset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
if (tag != FDT_BEGIN_NODE)
return -FDT_ERR_BADOFFSET;
@@ -153,7 +239,7 @@ static int _add_property(void *fdt, int nodeoffset, const char *name, int len,
if (namestroff < 0)
return namestroff;
- *prop = _fdt_offset_ptr(fdt, nextoffset);
+ *prop = _fdt_offset_ptr_w(fdt, nextoffset);
proplen = sizeof(**prop) + ALIGN(len, FDT_TAGSIZE);
err = _blob_splice_struct(fdt, *prop, 0, proplen);
@@ -192,7 +278,7 @@ int fdt_delprop(void *fdt, int nodeoffset, const char *name)
RW_CHECK_HEADER(fdt);
- prop = fdt_get_property(fdt, nodeoffset, name, &len);
+ prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
if (! prop)
return len;
@@ -219,13 +305,13 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
return offset;
/* Try to place the new node after the parent's properties */
- fdt_next_tag(fdt, parentoffset, &nextoffset, NULL); /* skip the BEGIN_NODE */
+ fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */
do {
offset = nextoffset;
- tag = fdt_next_tag(fdt, offset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
} while (tag == FDT_PROP);
- nh = _fdt_offset_ptr(fdt, offset);
+ nh = _fdt_offset_ptr_w(fdt, offset);
nodelen = sizeof(*nh) + ALIGN(namelen+1, FDT_TAGSIZE) + FDT_TAGSIZE;
err = _blob_splice_struct(fdt, nh, 0, nodelen);
@@ -250,44 +336,112 @@ int fdt_del_node(void *fdt, int nodeoffset)
{
int endoffset;
+ RW_CHECK_HEADER(fdt);
+
endoffset = _fdt_node_end_offset(fdt, nodeoffset);
if (endoffset < 0)
return endoffset;
- return _blob_splice_struct(fdt, _fdt_offset_ptr(fdt, nodeoffset),
+ return _blob_splice_struct(fdt, _fdt_offset_ptr_w(fdt, nodeoffset),
endoffset - nodeoffset, 0);
}
-int fdt_open_into(void *fdt, void *buf, int bufsize)
+static void _packblocks(const void *fdt, void *buf,
+ int mem_rsv_size, int struct_size)
+{
+ int mem_rsv_off, struct_off, strings_off;
+
+ mem_rsv_off = ALIGN(sizeof(struct fdt_header), 8);
+ struct_off = mem_rsv_off + mem_rsv_size;
+ strings_off = struct_off + struct_size;
+
+ memmove(buf + mem_rsv_off, fdt + fdt_off_mem_rsvmap(fdt), mem_rsv_size);
+ fdt_set_off_mem_rsvmap(buf, mem_rsv_off);
+
+ memcpy(buf + struct_off, fdt + fdt_off_dt_struct(fdt), struct_size);
+ fdt_set_off_dt_struct(buf, struct_off);
+ fdt_set_size_dt_struct(buf, struct_size);
+
+ memcpy(buf + strings_off, fdt + fdt_off_dt_strings(fdt),
+ fdt_size_dt_strings(fdt));
+ fdt_set_off_dt_strings(buf, strings_off);
+ fdt_set_size_dt_strings(buf, fdt_size_dt_strings(fdt));
+}
+
+int fdt_open_into(const void *fdt, void *buf, int bufsize)
{
int err;
+ int mem_rsv_size, struct_size;
+ int newsize;
+ void *tmp;
- err = fdt_move(fdt, buf, bufsize);
+ err = fdt_check_header(fdt);
if (err)
return err;
- fdt = buf;
+ mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
+ * sizeof(struct fdt_reserve_entry);
- fdt_set_header(fdt, totalsize, bufsize);
+ if (fdt_version(fdt) >= 17) {
+ struct_size = fdt_size_dt_struct(fdt);
+ } else {
+ struct_size = 0;
+ while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
+ ;
+ }
- /* FIXME: re-order if necessary */
+ if (!_blocks_misordered(fdt, mem_rsv_size, struct_size)) {
+ /* no further work necessary */
+ err = fdt_move(fdt, buf, bufsize);
+ if (err)
+ return err;
+ fdt_set_version(buf, 17);
+ fdt_set_size_dt_struct(buf, struct_size);
+ fdt_set_totalsize(buf, bufsize);
+ return 0;
+ }
- err = rw_check_header(fdt);
- if (err)
- return err;
+ /* Need to reorder */
+ newsize = ALIGN(sizeof(struct fdt_header), 8) + mem_rsv_size
+ + struct_size + fdt_size_dt_strings(fdt);
+
+ if (bufsize < newsize)
+ return -FDT_ERR_NOSPACE;
+
+ if (((buf + newsize) <= fdt)
+ || (buf >= (fdt + fdt_totalsize(fdt)))) {
+ tmp = buf;
+ } else {
+ tmp = (void *)fdt + fdt_totalsize(fdt);
+ if ((tmp + newsize) > (buf + bufsize))
+ return -FDT_ERR_NOSPACE;
+ }
+
+ _packblocks(fdt, tmp, mem_rsv_size, struct_size);
+ memmove(buf, tmp, newsize);
+
+ fdt_set_magic(buf, FDT_MAGIC);
+ fdt_set_totalsize(buf, bufsize);
+ fdt_set_version(buf, 17);
+ fdt_set_last_comp_version(buf, 16);
+ fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));
return 0;
}
int fdt_pack(void *fdt)
{
+ int mem_rsv_size;
int err;
err = rw_check_header(fdt);
if (err)
return err;
- /* FIXME: pack components */
- fdt_set_header(fdt, totalsize, _blob_data_size(fdt));
+ mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
+ * sizeof(struct fdt_reserve_entry);
+ _packblocks(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
+ fdt_set_totalsize(fdt, _blob_data_size(fdt));
+
return 0;
}
diff --git a/libfdt/fdt_strerror.c b/libfdt/fdt_strerror.c
index 7f231ce..f9d32ef 100644
--- a/libfdt/fdt_strerror.c
+++ b/libfdt/fdt_strerror.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
diff --git a/libfdt/fdt_sw.c b/libfdt/fdt_sw.c
index 672f4dd..dda2de3 100644
--- a/libfdt/fdt_sw.c
+++ b/libfdt/fdt_sw.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
@@ -41,8 +73,8 @@ static void *grab_space(void *fdt, int len)
if ((offset + len < offset) || (offset + len > spaceleft))
return NULL;
- fdt_set_header(fdt, size_dt_struct, offset + len);
- return fdt_offset_ptr(fdt, offset, len);
+ fdt_set_size_dt_struct(fdt, offset + len);
+ return fdt_offset_ptr_w(fdt, offset, len);
}
int fdt_create(void *buf, int bufsize)
@@ -54,15 +86,15 @@ int fdt_create(void *buf, int bufsize)
memset(buf, 0, bufsize);
- fdt_set_header(fdt, magic, SW_MAGIC);
- fdt_set_header(fdt, version, FDT_LAST_SUPPORTED_VERSION);
- fdt_set_header(fdt, last_comp_version, FDT_FIRST_SUPPORTED_VERSION);
- fdt_set_header(fdt, totalsize, bufsize);
+ fdt_set_magic(fdt, SW_MAGIC);
+ fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
+ fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
+ fdt_set_totalsize(fdt, bufsize);
- fdt_set_header(fdt, off_mem_rsvmap, ALIGN(sizeof(struct fdt_header),
- sizeof(struct fdt_reserve_entry)));
- fdt_set_header(fdt, off_dt_struct, fdt_off_mem_rsvmap(fdt));
- fdt_set_header(fdt, off_dt_strings, bufsize);
+ fdt_set_off_mem_rsvmap(fdt, ALIGN(sizeof(struct fdt_header),
+ sizeof(struct fdt_reserve_entry)));
+ fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));
+ fdt_set_off_dt_strings(fdt, bufsize);
return 0;
}
@@ -82,11 +114,11 @@ int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
if ((offset + sizeof(*re)) > fdt_totalsize(fdt))
return -FDT_ERR_NOSPACE;
- re = (struct fdt_reserve_entry *)((void *)fdt + offset);
+ re = (struct fdt_reserve_entry *)(fdt + offset);
re->address = cpu_to_fdt64(addr);
re->size = cpu_to_fdt64(size);
- fdt_set_header(fdt, off_dt_struct, offset + sizeof(*re));
+ fdt_set_off_dt_struct(fdt, offset + sizeof(*re));
return 0;
}
@@ -149,7 +181,7 @@ static int find_add_string(void *fdt, const char *s)
return 0; /* no more room :( */
memcpy(strtab + offset, s, len);
- fdt_set_header(fdt, size_dt_strings, strtabsize + len);
+ fdt_set_size_dt_strings(fdt, strtabsize + len);
return offset;
}
@@ -199,14 +231,14 @@ int fdt_finish(void *fdt)
oldstroffset = fdt_totalsize(fdt) - fdt_size_dt_strings(fdt);
newstroffset = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
memmove(p + newstroffset, p + oldstroffset, fdt_size_dt_strings(fdt));
- fdt_set_header(fdt, off_dt_strings, newstroffset);
+ fdt_set_off_dt_strings(fdt, newstroffset);
/* Walk the structure, correcting string offsets */
offset = 0;
- while ((tag = fdt_next_tag(fdt, offset, &nextoffset, NULL)) != FDT_END) {
+ while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {
if (tag == FDT_PROP) {
- struct fdt_property *prop = fdt_offset_ptr(fdt, offset,
- sizeof(*prop));
+ struct fdt_property *prop =
+ fdt_offset_ptr_w(fdt, offset, sizeof(*prop));
int nameoff;
if (! prop)
@@ -220,7 +252,7 @@ int fdt_finish(void *fdt)
}
/* Finally, adjust the header */
- fdt_set_header(fdt, totalsize, newstroffset + fdt_size_dt_strings(fdt));
- fdt_set_header(fdt, magic, FDT_MAGIC);
+ fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
+ fdt_set_magic(fdt, FDT_MAGIC);
return 0;
}
diff --git a/libfdt/fdt_wip.c b/libfdt/fdt_wip.c
index 2d2ed37..88e24b8 100644
--- a/libfdt/fdt_wip.c
+++ b/libfdt/fdt_wip.c
@@ -2,19 +2,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
*
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include "libfdt_env.h"
@@ -29,7 +61,7 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
void *propval;
int proplen;
- propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
+ propval = fdt_getprop_w(fdt, nodeoffset, name, &proplen);
if (! propval)
return proplen;
@@ -53,7 +85,7 @@ int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
struct fdt_property *prop;
int len;
- prop = fdt_get_property(fdt, nodeoffset, name, &len);
+ prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
if (! prop)
return len;
@@ -68,12 +100,12 @@ int _fdt_node_end_offset(void *fdt, int nodeoffset)
uint32_t tag;
int offset, nextoffset;
- tag = fdt_next_tag(fdt, nodeoffset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
if (tag != FDT_BEGIN_NODE)
return -FDT_ERR_BADOFFSET;
do {
offset = nextoffset;
- tag = fdt_next_tag(fdt, offset, &nextoffset, NULL);
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
switch (tag) {
case FDT_END:
@@ -107,31 +139,6 @@ int fdt_nop_node(void *fdt, int nodeoffset)
if (endoffset < 0)
return endoffset;
- nop_region(fdt_offset_ptr(fdt, nodeoffset, 0), endoffset - nodeoffset);
- return 0;
-}
-
-/*
- * Replace a reserve map entry in the nth slot.
- */
-int fdt_replace_reservemap_entry(void *fdt, int n, uint64_t addr, uint64_t size)
-{
- struct fdt_reserve_entry *re;
- int used;
- int total;
- int err;
-
- err = fdt_num_reservemap(fdt, &used, &total);
- if (err != 0)
- return err;
-
- if (n >= total)
- return -FDT_ERR_NOSPACE;
- re = (struct fdt_reserve_entry *)
- (fdt + fdt_off_mem_rsvmap(fdt) +
- (n * sizeof(struct fdt_reserve_entry)));
- re->address = cpu_to_fdt64(addr);
- re->size = cpu_to_fdt64(size);
-
+ nop_region(fdt_offset_ptr_w(fdt, nodeoffset, 0), endoffset - nodeoffset);
return 0;
}
diff --git a/libfdt/libfdt_internal.h b/libfdt/libfdt_internal.h
index cc9633c..1e60936 100644
--- a/libfdt/libfdt_internal.h
+++ b/libfdt/libfdt_internal.h
@@ -4,19 +4,51 @@
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ * b) 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#include <fdt.h>
@@ -26,13 +58,30 @@
#define memeq(p, q, n) (memcmp((p), (q), (n)) == 0)
#define streq(p, q) (strcmp((p), (q)) == 0)
-int _fdt_check_header(const void *fdt);
+uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset);
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
int _fdt_node_end_offset(void *fdt, int nodeoffset);
-static inline void *_fdt_offset_ptr(const struct fdt_header *fdt, int offset)
+static inline const void *_fdt_offset_ptr(const void *fdt, int offset)
+{
+ return fdt + fdt_off_dt_struct(fdt) + offset;
+}
+
+static inline void *_fdt_offset_ptr_w(void *fdt, int offset)
+{
+ return (void *)_fdt_offset_ptr(fdt, offset);
+}
+
+static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n)
+{
+ const struct fdt_reserve_entry *rsv_table =
+ fdt + fdt_off_mem_rsvmap(fdt);
+
+ return rsv_table + n;
+}
+static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n)
{
- return (void *)fdt + fdt_off_dt_struct(fdt) + offset;
+ return (void *)_fdt_mem_rsv(fdt, n);
}
#define SW_MAGIC (~FDT_MAGIC)