diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw_tree.c')
| -rw-r--r-- | c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw_tree.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw_tree.c b/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw_tree.c deleted file mode 100644 index d6770c093d..0000000000 --- a/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw_tree.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * 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. - */ - -/* - * Modifications are made to compile for RTEMS. Removes asm.h and memstr.h. - * - */ - - -#include <boot/ofw_tree.h> -#include <boot/ofw.h> -#include <boot/ofwarch.h> -#include <boot/types.h> -#include <string.h> -#include <boot/balloc.h> -#if 0 -#include <asm.h> -#include <memstr.h> -#endif - -static ofw_tree_node_t *ofw_tree_node_alloc(void) -{ - return balloc(sizeof(ofw_tree_node_t), sizeof(ofw_tree_node_t)); -} - -static ofw_tree_property_t *ofw_tree_properties_alloc(unsigned count) -{ - return balloc(count * sizeof(ofw_tree_property_t), - sizeof(ofw_tree_property_t)); -} - -static void *ofw_tree_space_alloc(size_t size) -{ - /* - * What we do here is a nasty hack :-) - * Problem: string property values that are allocated via this - * function typically do not contain the trailing '\0'. This - * is very uncomfortable for kernel, which is supposed to deal - * with the properties. - * Solution: when allocating space via this function, we always - * allocate space for the extra '\0' character that we store - * behind the requested memory. - */ - char *addr = balloc(size + 1, size); - if (addr) - addr[size] = '\0'; - - return addr; -} - -/** Transfer information from one OpenFirmware node into its memory - * representation. - * - * Transfer entire information from the OpenFirmware device tree 'current' node - * to its memory representation in 'current_node'. This function recursively - * processes all node's children. Node's peers are processed iteratively in - * order to prevent stack from overflowing. - * - * @param current_node Pointer to uninitialized ofw_tree_node structure that - * will become the memory represenation of 'current'. - * @param parent_node Parent ofw_tree_node structure or NULL in case of root - * node. - * @param current OpenFirmware phandle to the current device tree node. - * - */ -static void ofw_tree_node_process(ofw_tree_node_t *current_node, - ofw_tree_node_t *parent_node, phandle current) -{ - while (current_node) { - /* - * Initialize node. - */ - current_node->parent = (ofw_tree_node_t *) balloc_rebase(parent_node); - current_node->peer = NULL; - current_node->child = NULL; - current_node->node_handle = current; - current_node->properties = 0; - current_node->property = NULL; - current_node->device = NULL; - - /* - * Get the disambigued name. - */ - static char path[OFW_TREE_PATH_MAX_LEN + 1]; - size_t len = ofw_package_to_path(current, path, OFW_TREE_PATH_MAX_LEN); - if (len == -1) - return; - - path[len] = '\0'; - - /* Find last slash */ - int i; - for (i = len - 1; (i >= 0) && (path[i] != '/'); i--); - - /* Do not include the slash */ - i++; - len -= i; - - /* Add space for trailing '\0' */ - char *da_name = ofw_tree_space_alloc(len + 1); - if (!da_name) - return; - - memcpy(da_name, &path[i], len); - da_name[len] = '\0'; - current_node->da_name = (char *) balloc_rebase(da_name); - - /* - * Recursively process the potential child node. - */ - phandle child = ofw_get_child_node(current); - if ((child != 0) && (child != -1)) { - ofw_tree_node_t *child_node = ofw_tree_node_alloc(); - if (child_node) { - ofw_tree_node_process(child_node, current_node, - child); - current_node->child = - (ofw_tree_node_t *) balloc_rebase(child_node); - } - } - - /* - * Count properties. - */ - static char name[OFW_TREE_PROPERTY_MAX_NAMELEN]; - static char name2[OFW_TREE_PROPERTY_MAX_NAMELEN]; - name[0] = '\0'; - while (ofw_next_property(current, name, name2) == 1) { - current_node->properties++; - memcpy(name, name2, OFW_TREE_PROPERTY_MAX_NAMELEN); - } - - if (!current_node->properties) - return; - - /* - * Copy properties. - */ - ofw_tree_property_t *property = - ofw_tree_properties_alloc(current_node->properties); - if (!property) - return; - - name[0] = '\0'; - for (i = 0; ofw_next_property(current, name, name2) == 1; i++) { - if (i == current_node->properties) - break; - - memcpy(name, name2, OFW_TREE_PROPERTY_MAX_NAMELEN); - memcpy(property[i].name, name, OFW_TREE_PROPERTY_MAX_NAMELEN); - property[i].name[OFW_TREE_PROPERTY_MAX_NAMELEN - 1] = '\0'; - - size_t size = ofw_get_proplen(current, name); - property[i].size = size; - - if (size) { - void *buf = ofw_tree_space_alloc(size); - if (buf) { - /* - * Copy property value to memory node. - */ - (void) ofw_get_property(current, name, buf, size); - property[i].value = balloc_rebase(buf); - } - } else - property[i].value = NULL; - } - - /* Just in case we ran out of memory. */ - current_node->properties = i; - current_node->property = (ofw_tree_property_t *) balloc_rebase(property); - - - /* - * Iteratively process the next peer node. - * Note that recursion is a bad idea here. - * Due to the topology of the OpenFirmware device tree, - * the nesting of peer nodes could be to wide and the - * risk of overflowing the stack is too real. - */ - phandle peer = ofw_get_peer_node(current); - if ((peer != 0) && (peer != -1)) { - ofw_tree_node_t *peer_node = ofw_tree_node_alloc(); - if (peer_node) { - current_node->peer = (ofw_tree_node_t *) balloc_rebase(peer_node); - current_node = peer_node; - current = peer; - /* - * Process the peer in next iteration. - */ - continue; - } - } - - /* - * No more peers on this level. - */ - break; - } -} - -/** Construct memory representation of OpenFirmware device tree. - * - * @return NULL on failure or kernel pointer to the root node. - * - */ -ofw_tree_node_t *ofw_tree_build(void) -{ - ofw_tree_node_t *root = ofw_tree_node_alloc(); - if (root) - ofw_tree_node_process(root, NULL, ofw_root); - - /* - * The firmware client interface does not automatically include the - * "ssm" node in the list of children of "/". A nasty yet working - * solution is to explicitly stick "ssm" to the OFW tree. - */ - phandle ssm_node = ofw_find_device("/ssm@0,0"); - if (ssm_node != -1) { - ofw_tree_node_t *ssm = ofw_tree_node_alloc(); - if (ssm) { - ofw_tree_node_process(ssm, root, - ofw_find_device("/ssm@0,0")); - ssm->peer = root->child; - root->child = (ofw_tree_node_t *) balloc_rebase(ssm); - } - } - - return (ofw_tree_node_t *) balloc_rebase(root); -} |