1358 lines
30 KiB
C
1358 lines
30 KiB
C
/* The common simulator framework for GDB, the GNU Debugger.
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Copyright 2002-2013 Free Software Foundation, Inc.
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Contributed by Andrew Cagney and Red Hat.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "hw-main.h"
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#include "hw-base.h"
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#include "hw-tree.h"
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#include "sim-io.h"
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#include "sim-assert.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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#include <ctype.h>
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/* manipulate/lookup device names */
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typedef struct _name_specifier
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{
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/* components in the full length name */
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char *path;
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char *property;
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char *value;
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/* current device */
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char *family;
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char *name;
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char *unit;
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char *args;
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/* previous device */
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char *last_name;
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char *last_family;
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char *last_unit;
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char *last_args;
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/* work area */
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char buf[1024];
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} name_specifier;
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/* Given a device specifier, break it up into its main components:
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path (and if present) property name and property value. */
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static int
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split_device_specifier (struct hw *current,
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const char *device_specifier,
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name_specifier *spec)
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{
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char *chp = NULL;
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/* expand any leading alias if present */
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if (current != NULL
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&& *device_specifier != '\0'
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&& *device_specifier != '.'
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&& *device_specifier != '/')
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{
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struct hw *aliases = hw_tree_find_device (current, "/aliases");
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char alias[32];
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int len = 0;
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while (device_specifier[len] != '\0'
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&& device_specifier[len] != '/'
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&& device_specifier[len] != ':'
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&& !isspace (device_specifier[len]))
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{
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alias[len] = device_specifier[len];
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len++;
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if (len >= sizeof (alias))
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hw_abort (NULL, "split_device_specifier: buffer overflow");
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}
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alias[len] = '\0';
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if (aliases != NULL
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&& hw_find_property (aliases, alias))
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{
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strcpy (spec->buf, hw_find_string_property (aliases, alias));
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strcat (spec->buf, device_specifier + len);
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}
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else
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{
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strcpy (spec->buf, device_specifier);
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}
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}
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else
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{
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strcpy (spec->buf, device_specifier);
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}
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/* check no overflow */
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if (strlen (spec->buf) >= sizeof (spec->buf))
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hw_abort (NULL, "split_device_specifier: buffer overflow\n");
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/* strip leading spaces */
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chp = spec->buf;
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while (*chp != '\0' && isspace (*chp))
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chp++;
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if (*chp == '\0')
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return 0;
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/* find the path and terminate it with null */
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spec->path = chp;
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while (*chp != '\0' && !isspace (*chp))
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chp++;
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if (*chp != '\0')
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{
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*chp = '\0';
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chp++;
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}
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/* and any value */
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while (*chp != '\0' && isspace (*chp))
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chp++;
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spec->value = chp;
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/* now go back and chop the property off of the path */
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if (spec->value[0] == '\0')
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{
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spec->property = NULL; /*not a property*/
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spec->value = NULL;
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}
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else if (spec->value[0] == '>'
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|| spec->value[0] == '<')
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{
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/* an interrupt spec */
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spec->property = NULL;
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}
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else
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{
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chp = strrchr (spec->path, '/');
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if (chp == NULL)
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{
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spec->property = spec->path;
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spec->path = strchr (spec->property, '\0');
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}
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else
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{
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*chp = '\0';
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spec->property = chp+1;
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}
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}
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/* and mark the rest as invalid */
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spec->name = NULL;
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spec->family = NULL;
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spec->unit = NULL;
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spec->args = NULL;
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spec->last_name = NULL;
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spec->last_family = NULL;
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spec->last_unit = NULL;
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spec->last_args = NULL;
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return 1;
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}
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/* given a device specifier break it up into its main components -
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path and property name - assuming that the last `device' is a
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property name. */
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static int
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split_property_specifier (struct hw *current,
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const char *property_specifier,
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name_specifier *spec)
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{
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if (split_device_specifier (current, property_specifier, spec))
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{
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if (spec->property == NULL)
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{
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/* force the last name to be a property name */
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char *chp = strrchr (spec->path, '/');
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if (chp == NULL)
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{
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spec->property = spec->path;
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spec->path = strrchr (spec->property, '\0');;
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}
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else
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{
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*chp = '\0';
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spec->property = chp + 1;
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}
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}
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return 1;
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}
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else
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return 0;
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}
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/* device the next device name and split it up, return 0 when no more
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names to struct hw */
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static int
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split_device_name (name_specifier *spec)
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{
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char *chp;
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/* remember what came before */
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spec->last_name = spec->name;
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spec->last_family = spec->family;
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spec->last_unit = spec->unit;
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spec->last_args = spec->args;
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/* finished? */
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if (spec->path[0] == '\0')
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{
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spec->name = NULL;
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spec->family = NULL;
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spec->unit = NULL;
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spec->args = NULL;
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return 0;
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}
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/* break the current device spec from the path */
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spec->name = spec->path;
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chp = strchr (spec->name, '/');
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if (chp == NULL)
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spec->path = strchr (spec->name, '\0');
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else
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{
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spec->path = chp+1;
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*chp = '\0';
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}
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/* break out the base */
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if (spec->name[0] == '(')
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{
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chp = strchr (spec->name, ')');
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if (chp == NULL)
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{
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spec->family = spec->name;
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}
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else
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{
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*chp = '\0';
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spec->family = spec->name + 1;
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spec->name = chp + 1;
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}
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}
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else
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{
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spec->family = spec->name;
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}
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/* now break out the unit */
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chp = strchr (spec->name, '@');
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if (chp == NULL)
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{
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spec->unit = NULL;
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chp = spec->name;
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}
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else
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{
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*chp = '\0';
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chp += 1;
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spec->unit = chp;
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}
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/* finally any args */
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chp = strchr (chp, ':');
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if (chp == NULL)
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spec->args = NULL;
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else
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{
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*chp = '\0';
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spec->args = chp+1;
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}
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return 1;
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}
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/* device the value, returning the next non-space token */
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static char *
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split_value (name_specifier *spec)
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{
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char *token;
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if (spec->value == NULL)
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return NULL;
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/* skip leading white space */
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while (isspace (spec->value[0]))
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spec->value++;
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if (spec->value[0] == '\0')
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{
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spec->value = NULL;
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return NULL;
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}
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token = spec->value;
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/* find trailing space */
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while (spec->value[0] != '\0' && !isspace (spec->value[0]))
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spec->value++;
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/* chop this value out */
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if (spec->value[0] != '\0')
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{
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spec->value[0] = '\0';
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spec->value++;
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}
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return token;
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}
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/* traverse the path specified by spec starting at current */
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static struct hw *
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split_find_device (struct hw *current,
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name_specifier *spec)
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{
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/* strip off (and process) any leading ., .., ./ and / */
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while (1)
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{
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if (strncmp (spec->path, "/", strlen ("/")) == 0)
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{
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/* cd /... */
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while (current != NULL && hw_parent (current) != NULL)
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current = hw_parent (current);
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spec->path += strlen ("/");
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}
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else if (strncmp (spec->path, "./", strlen ("./")) == 0)
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{
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/* cd ./... */
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current = current;
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spec->path += strlen ("./");
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}
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else if (strncmp (spec->path, "../", strlen ("../")) == 0)
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{
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/* cd ../... */
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if (current != NULL && hw_parent (current) != NULL)
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current = hw_parent (current);
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spec->path += strlen ("../");
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}
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else if (strcmp (spec->path, ".") == 0)
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{
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/* cd . */
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current = current;
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spec->path += strlen (".");
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}
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else if (strcmp (spec->path, "..") == 0)
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{
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/* cd .. */
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if (current != NULL && hw_parent (current) != NULL)
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current = hw_parent (current);
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spec->path += strlen ("..");
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}
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else
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break;
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}
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/* now go through the path proper */
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if (current == NULL)
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{
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split_device_name (spec);
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return NULL;
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}
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while (split_device_name (spec))
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{
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struct hw *child;
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for (child = hw_child (current);
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child != NULL; child = hw_sibling (child))
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{
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if (strcmp (spec->name, hw_name (child)) == 0)
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{
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if (spec->unit == NULL)
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break;
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else
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{
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hw_unit phys;
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hw_unit_decode (current, spec->unit, &phys);
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if (memcmp (&phys, hw_unit_address (child),
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sizeof (hw_unit)) == 0)
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break;
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}
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}
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}
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if (child == NULL)
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return current; /* search failed */
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current = child;
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}
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return current;
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}
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static struct hw *
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split_fill_path (struct hw *current,
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const char *device_specifier,
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name_specifier *spec)
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{
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/* break it up */
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if (!split_device_specifier (current, device_specifier, spec))
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hw_abort (current, "error parsing %s\n", device_specifier);
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/* fill our tree with its contents */
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current = split_find_device (current, spec);
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/* add any additional devices as needed */
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if (spec->name != NULL)
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{
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do
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{
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if (current != NULL && !hw_finished_p (current))
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hw_finish (current);
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current = hw_create (NULL,
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current,
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spec->family,
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spec->name,
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spec->unit,
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spec->args);
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}
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while (split_device_name (spec));
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}
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return current;
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}
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/* <non-white-space> */
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static const char *
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skip_token (const char *chp)
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{
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while (!isspace (*chp) && *chp != '\0')
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chp++;
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while (isspace (*chp) && *chp != '\0')
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chp++;
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return chp;
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}
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/* count the number of entries */
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static int
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count_entries (struct hw *current,
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const char *property_name,
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const char *property_value,
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int modulo)
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{
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const char *chp = property_value;
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int nr_entries = 0;
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while (*chp != '\0')
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{
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nr_entries += 1;
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chp = skip_token (chp);
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}
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if ((nr_entries % modulo) != 0)
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{
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hw_abort (current, "incorrect number of entries for %s property %s, should be multiple of %d",
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property_name, property_value, modulo);
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}
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return nr_entries / modulo;
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}
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/* parse: <address> ::= <token> ; device dependant */
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static const char *
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parse_address (struct hw *current,
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struct hw *bus,
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const char *chp,
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hw_unit *address)
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{
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if (hw_unit_decode (bus, chp, address) < 0)
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hw_abort (current, "invalid unit address in %s", chp);
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return skip_token (chp);
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}
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/* parse: <size> ::= <number> { "," <number> } ; */
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static const char *
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parse_size (struct hw *current,
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struct hw *bus,
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const char *chp,
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||
hw_unit *size)
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{
|
||
int i;
|
||
int nr;
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const char *curr = chp;
|
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memset (size, 0, sizeof (*size));
|
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/* parse the numeric list */
|
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size->nr_cells = hw_unit_nr_size_cells (bus);
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nr = 0;
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while (1)
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{
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char *next;
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size->cells[nr] = strtoul (curr, &next, 0);
|
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if (curr == next)
|
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hw_abort (current, "Problem parsing <size> %s", chp);
|
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nr += 1;
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if (next[0] != ',')
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break;
|
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if (nr == size->nr_cells)
|
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hw_abort (current, "Too many values in <size> %s", chp);
|
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curr = next + 1;
|
||
}
|
||
ASSERT (nr > 0 && nr <= size->nr_cells);
|
||
/* right align the numbers */
|
||
for (i = 1; i <= size->nr_cells; i++)
|
||
{
|
||
if (i <= nr)
|
||
size->cells[size->nr_cells - i] = size->cells[nr - i];
|
||
else
|
||
size->cells[size->nr_cells - i] = 0;
|
||
}
|
||
return skip_token (chp);
|
||
}
|
||
|
||
|
||
/* parse: <reg> ::= { <address> <size> } ; */
|
||
|
||
static void
|
||
parse_reg_property (struct hw *current,
|
||
const char *property_name,
|
||
const char *property_value)
|
||
{
|
||
int nr_regs;
|
||
int reg_nr;
|
||
reg_property_spec *regs;
|
||
const char *chp;
|
||
|
||
/* determine the number of reg entries by counting tokens */
|
||
nr_regs = count_entries (current, property_name, property_value, 2);
|
||
|
||
/* create working space */
|
||
regs = zalloc (nr_regs * sizeof (*regs));
|
||
|
||
/* fill it in */
|
||
chp = property_value;
|
||
for (reg_nr = 0; reg_nr < nr_regs; reg_nr++)
|
||
{
|
||
chp = parse_address (current, hw_parent (current),
|
||
chp, ®s[reg_nr].address);
|
||
chp = parse_size (current, hw_parent (current),
|
||
chp, ®s[reg_nr].size);
|
||
}
|
||
|
||
/* create it */
|
||
hw_add_reg_array_property (current, property_name,
|
||
regs, nr_regs);
|
||
|
||
free (regs);
|
||
}
|
||
|
||
|
||
/* { <child-address> <parent-address> <child-size> }* */
|
||
|
||
static void
|
||
parse_ranges_property (struct hw *current,
|
||
const char *property_name,
|
||
const char *property_value)
|
||
{
|
||
int nr_ranges;
|
||
int range_nr;
|
||
range_property_spec *ranges;
|
||
const char *chp;
|
||
|
||
/* determine the number of ranges specified */
|
||
nr_ranges = count_entries (current, property_name, property_value, 3);
|
||
|
||
/* create a property of that size */
|
||
ranges = zalloc (nr_ranges * sizeof (*ranges));
|
||
|
||
/* fill it in */
|
||
chp = property_value;
|
||
for (range_nr = 0; range_nr < nr_ranges; range_nr++)
|
||
{
|
||
chp = parse_address (current, current,
|
||
chp, &ranges[range_nr].child_address);
|
||
chp = parse_address (current, hw_parent (current),
|
||
chp, &ranges[range_nr].parent_address);
|
||
chp = parse_size (current, current,
|
||
chp, &ranges[range_nr].size);
|
||
}
|
||
|
||
/* create it */
|
||
hw_add_range_array_property (current, property_name, ranges, nr_ranges);
|
||
|
||
free (ranges);
|
||
}
|
||
|
||
|
||
/* <integer> ... */
|
||
|
||
static void
|
||
parse_integer_property (struct hw *current,
|
||
const char *property_name,
|
||
const char *property_value)
|
||
{
|
||
int nr_entries;
|
||
unsigned_cell words[1024];
|
||
/* integer or integer array? */
|
||
nr_entries = 0;
|
||
while (1)
|
||
{
|
||
char *end;
|
||
words[nr_entries] = strtoul (property_value, &end, 0);
|
||
if (property_value == end)
|
||
break;
|
||
nr_entries += 1;
|
||
if (nr_entries * sizeof (words[0]) >= sizeof (words))
|
||
hw_abort (current, "buffer overflow");
|
||
property_value = end;
|
||
}
|
||
if (nr_entries == 0)
|
||
hw_abort (current, "error parsing integer property %s (%s)",
|
||
property_name, property_value);
|
||
else if (nr_entries == 1)
|
||
hw_add_integer_property (current, property_name, words[0]);
|
||
else
|
||
{
|
||
int i;
|
||
for (i = 0; i < nr_entries; i++)
|
||
{
|
||
H2BE (words[i]);
|
||
}
|
||
/* perhaps integer array property is better */
|
||
hw_add_array_property (current, property_name, words,
|
||
sizeof (words[0]) * nr_entries);
|
||
}
|
||
}
|
||
|
||
|
||
/* <string> ... */
|
||
|
||
static void
|
||
parse_string_property (struct hw *current,
|
||
const char *property_name,
|
||
const char *property_value)
|
||
{
|
||
char **strings;
|
||
const char *chp;
|
||
int nr_strings;
|
||
int approx_nr_strings;
|
||
|
||
/* get an estimate as to the number of strings by counting double
|
||
quotes */
|
||
approx_nr_strings = 2;
|
||
for (chp = property_value; *chp; chp++)
|
||
{
|
||
if (*chp == '"')
|
||
approx_nr_strings++;
|
||
}
|
||
approx_nr_strings = (approx_nr_strings) / 2;
|
||
|
||
/* create a string buffer for that many (plus a null) */
|
||
strings = (char**) zalloc ((approx_nr_strings + 1) * sizeof (char*));
|
||
|
||
/* now find all the strings */
|
||
chp = property_value;
|
||
nr_strings = 0;
|
||
while (1)
|
||
{
|
||
|
||
/* skip leading space */
|
||
while (*chp != '\0' && isspace (*chp))
|
||
chp += 1;
|
||
if (*chp == '\0')
|
||
break;
|
||
|
||
/* copy it in */
|
||
if (*chp == '"')
|
||
{
|
||
/* a quoted string - watch for '\' et al. */
|
||
/* estimate the size and allocate space for it */
|
||
int pos;
|
||
chp++;
|
||
pos = 0;
|
||
while (chp[pos] != '\0' && chp[pos] != '"')
|
||
{
|
||
if (chp[pos] == '\\' && chp[pos+1] != '\0')
|
||
pos += 2;
|
||
else
|
||
pos += 1;
|
||
}
|
||
strings[nr_strings] = zalloc (pos + 1);
|
||
/* copy the string over */
|
||
pos = 0;
|
||
while (*chp != '\0' && *chp != '"')
|
||
{
|
||
if (*chp == '\\' && *(chp+1) != '\0')
|
||
{
|
||
strings[nr_strings][pos] = *(chp+1);
|
||
chp += 2;
|
||
pos++;
|
||
}
|
||
else
|
||
{
|
||
strings[nr_strings][pos] = *chp;
|
||
chp += 1;
|
||
pos++;
|
||
}
|
||
}
|
||
if (*chp != '\0')
|
||
chp++;
|
||
strings[nr_strings][pos] = '\0';
|
||
}
|
||
else
|
||
{
|
||
/* copy over a single unquoted token */
|
||
int len = 0;
|
||
while (chp[len] != '\0' && !isspace (chp[len]))
|
||
len++;
|
||
strings[nr_strings] = zalloc (len + 1);
|
||
strncpy (strings[nr_strings], chp, len);
|
||
strings[nr_strings][len] = '\0';
|
||
chp += len;
|
||
}
|
||
nr_strings++;
|
||
if (nr_strings > approx_nr_strings)
|
||
hw_abort (current, "String property %s badly formatted",
|
||
property_name);
|
||
}
|
||
ASSERT (strings[nr_strings] == NULL); /* from zalloc */
|
||
|
||
/* install it */
|
||
if (nr_strings == 0)
|
||
hw_add_string_property (current, property_name, "");
|
||
else if (nr_strings == 1)
|
||
hw_add_string_property (current, property_name, strings[0]);
|
||
else
|
||
{
|
||
const char **specs = (const char**) strings; /* stop a bogus error */
|
||
hw_add_string_array_property (current, property_name,
|
||
specs, nr_strings);
|
||
}
|
||
|
||
/* flush the created string */
|
||
while (nr_strings > 0)
|
||
{
|
||
nr_strings--;
|
||
free (strings[nr_strings]);
|
||
}
|
||
free (strings);
|
||
}
|
||
|
||
|
||
/* <path-to-ihandle-device> */
|
||
|
||
#if NOT_YET
|
||
static void
|
||
parse_ihandle_property (struct hw *current,
|
||
const char *property,
|
||
const char *value)
|
||
{
|
||
ihandle_runtime_property_spec ihandle;
|
||
|
||
/* pass the full path */
|
||
ihandle.full_path = value;
|
||
|
||
/* save this ready for the ihandle create */
|
||
hw_add_ihandle_runtime_property (current, property,
|
||
&ihandle);
|
||
}
|
||
#endif
|
||
|
||
|
||
struct hw *
|
||
hw_tree_create (SIM_DESC sd,
|
||
const char *family)
|
||
{
|
||
return hw_create (sd, NULL, family, family, NULL, NULL);
|
||
}
|
||
|
||
void
|
||
hw_tree_delete (struct hw *me)
|
||
{
|
||
/* Need to allow devices to disapear under our feet */
|
||
while (hw_child (me) != NULL)
|
||
{
|
||
hw_tree_delete (hw_child (me));
|
||
}
|
||
hw_delete (me);
|
||
}
|
||
|
||
|
||
struct hw *
|
||
hw_tree_parse (struct hw *current,
|
||
const char *fmt,
|
||
...)
|
||
{
|
||
va_list ap;
|
||
va_start (ap, fmt);
|
||
current = hw_tree_vparse (current, fmt, ap);
|
||
va_end (ap);
|
||
return current;
|
||
}
|
||
|
||
struct hw *
|
||
hw_tree_vparse (struct hw *current,
|
||
const char *fmt,
|
||
va_list ap)
|
||
{
|
||
char device_specifier[1024];
|
||
name_specifier spec;
|
||
|
||
/* format the path */
|
||
vsprintf (device_specifier, fmt, ap);
|
||
if (strlen (device_specifier) >= sizeof (device_specifier))
|
||
hw_abort (NULL, "device_tree_add_deviced: buffer overflow\n");
|
||
|
||
/* construct the tree down to the final struct hw */
|
||
current = split_fill_path (current, device_specifier, &spec);
|
||
|
||
/* is there an interrupt spec */
|
||
if (spec.property == NULL
|
||
&& spec.value != NULL)
|
||
{
|
||
char *op = split_value (&spec);
|
||
switch (op[0])
|
||
{
|
||
case '>':
|
||
{
|
||
char *my_port_name = split_value (&spec);
|
||
int my_port;
|
||
char *dest_port_name = split_value (&spec);
|
||
int dest_port;
|
||
name_specifier dest_spec;
|
||
char *dest_hw_name = split_value (&spec);
|
||
struct hw *dest;
|
||
/* find my name */
|
||
if (!hw_finished_p (current))
|
||
hw_finish (current);
|
||
my_port = hw_port_decode (current, my_port_name, output_port);
|
||
/* find the dest device and port */
|
||
dest = split_fill_path (current, dest_hw_name, &dest_spec);
|
||
if (!hw_finished_p (dest))
|
||
hw_finish (dest);
|
||
dest_port = hw_port_decode (dest, dest_port_name,
|
||
input_port);
|
||
/* connect the two */
|
||
hw_port_attach (current,
|
||
my_port,
|
||
dest,
|
||
dest_port,
|
||
permenant_object);
|
||
break;
|
||
}
|
||
default:
|
||
hw_abort (current, "unreconised interrupt spec %s\n", spec.value);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* is there a property */
|
||
if (spec.property != NULL)
|
||
{
|
||
if (strcmp (spec.value, "true") == 0)
|
||
hw_add_boolean_property (current, spec.property, 1);
|
||
else if (strcmp (spec.value, "false") == 0)
|
||
hw_add_boolean_property (current, spec.property, 0);
|
||
else
|
||
{
|
||
const struct hw_property *property;
|
||
switch (spec.value[0])
|
||
{
|
||
#if NOT_YET
|
||
case '*':
|
||
{
|
||
parse_ihandle_property (current, spec.property, spec.value + 1);
|
||
break;
|
||
}
|
||
#endif
|
||
case '[':
|
||
{
|
||
unsigned8 words[1024];
|
||
char *curr = spec.value + 1;
|
||
int nr_words = 0;
|
||
while (1)
|
||
{
|
||
char *next;
|
||
words[nr_words] = H2BE_1 (strtoul (curr, &next, 0));
|
||
if (curr == next)
|
||
break;
|
||
curr = next;
|
||
nr_words += 1;
|
||
}
|
||
hw_add_array_property (current, spec.property,
|
||
words, sizeof (words[0]) * nr_words);
|
||
break;
|
||
}
|
||
case '"':
|
||
{
|
||
parse_string_property (current, spec.property, spec.value);
|
||
break;
|
||
}
|
||
case '!':
|
||
{
|
||
spec.value++;
|
||
property = hw_tree_find_property (current, spec.value);
|
||
if (property == NULL)
|
||
hw_abort (current, "property %s not found\n", spec.value);
|
||
hw_add_duplicate_property (current,
|
||
spec.property,
|
||
property);
|
||
break;
|
||
}
|
||
default:
|
||
{
|
||
if (strcmp (spec.property, "reg") == 0
|
||
|| strcmp (spec.property, "assigned-addresses") == 0
|
||
|| strcmp (spec.property, "alternate-reg") == 0)
|
||
{
|
||
parse_reg_property (current, spec.property, spec.value);
|
||
}
|
||
else if (strcmp (spec.property, "ranges") == 0)
|
||
{
|
||
parse_ranges_property (current, spec.property, spec.value);
|
||
}
|
||
else if (isdigit (spec.value[0])
|
||
|| (spec.value[0] == '-' && isdigit (spec.value[1]))
|
||
|| (spec.value[0] == '+' && isdigit (spec.value[1])))
|
||
{
|
||
parse_integer_property (current, spec.property, spec.value);
|
||
}
|
||
else
|
||
parse_string_property (current, spec.property, spec.value);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return current;
|
||
}
|
||
|
||
|
||
static void
|
||
finish_hw_tree (struct hw *me,
|
||
void *data)
|
||
{
|
||
if (!hw_finished_p (me))
|
||
hw_finish (me);
|
||
}
|
||
|
||
void
|
||
hw_tree_finish (struct hw *root)
|
||
{
|
||
hw_tree_traverse (root, finish_hw_tree, NULL, NULL);
|
||
}
|
||
|
||
|
||
|
||
void
|
||
hw_tree_traverse (struct hw *root,
|
||
hw_tree_traverse_function *prefix,
|
||
hw_tree_traverse_function *postfix,
|
||
void *data)
|
||
{
|
||
struct hw *child;
|
||
if (prefix != NULL)
|
||
prefix (root, data);
|
||
for (child = hw_child (root);
|
||
child != NULL;
|
||
child = hw_sibling (child))
|
||
{
|
||
hw_tree_traverse (child, prefix, postfix, data);
|
||
}
|
||
if (postfix != NULL)
|
||
postfix (root, data);
|
||
}
|
||
|
||
|
||
|
||
struct printer
|
||
{
|
||
hw_tree_print_callback *print;
|
||
void *file;
|
||
};
|
||
|
||
static void
|
||
print_address (struct hw *bus,
|
||
const hw_unit *phys,
|
||
struct printer *p)
|
||
{
|
||
char unit[32];
|
||
hw_unit_encode (bus, phys, unit, sizeof (unit));
|
||
p->print (p->file, " %s", unit);
|
||
}
|
||
|
||
static void
|
||
print_size (struct hw *bus,
|
||
const hw_unit *size,
|
||
struct printer *p)
|
||
{
|
||
int i;
|
||
for (i = 0; i < size->nr_cells; i++)
|
||
if (size->cells[i] != 0)
|
||
break;
|
||
if (i < size->nr_cells)
|
||
{
|
||
p->print (p->file, " 0x%lx", (unsigned long) size->cells[i]);
|
||
i++;
|
||
for (; i < size->nr_cells; i++)
|
||
p->print (p->file, ",0x%lx", (unsigned long) size->cells[i]);
|
||
}
|
||
else
|
||
p->print (p->file, " 0");
|
||
}
|
||
|
||
static void
|
||
print_reg_property (struct hw *me,
|
||
const struct hw_property *property,
|
||
struct printer *p)
|
||
{
|
||
int reg_nr;
|
||
reg_property_spec reg;
|
||
for (reg_nr = 0;
|
||
hw_find_reg_array_property (me, property->name, reg_nr, ®);
|
||
reg_nr++)
|
||
{
|
||
print_address (hw_parent (me), ®.address, p);
|
||
print_size (me, ®.size, p);
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_ranges_property (struct hw *me,
|
||
const struct hw_property *property,
|
||
struct printer *p)
|
||
{
|
||
int range_nr;
|
||
range_property_spec range;
|
||
for (range_nr = 0;
|
||
hw_find_range_array_property (me, property->name, range_nr, &range);
|
||
range_nr++)
|
||
{
|
||
print_address (me, &range.child_address, p);
|
||
print_address (hw_parent (me), &range.parent_address, p);
|
||
print_size (me, &range.size, p);
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_string (struct hw *me,
|
||
const char *string,
|
||
struct printer *p)
|
||
{
|
||
p->print (p->file, " \"");
|
||
while (*string != '\0')
|
||
{
|
||
switch (*string)
|
||
{
|
||
case '"':
|
||
p->print (p->file, "\\\"");
|
||
break;
|
||
case '\\':
|
||
p->print (p->file, "\\\\");
|
||
break;
|
||
default:
|
||
p->print (p->file, "%c", *string);
|
||
break;
|
||
}
|
||
string++;
|
||
}
|
||
p->print (p->file, "\"");
|
||
}
|
||
|
||
static void
|
||
print_string_array_property (struct hw *me,
|
||
const struct hw_property *property,
|
||
struct printer *p)
|
||
{
|
||
int nr;
|
||
string_property_spec string;
|
||
for (nr = 0;
|
||
hw_find_string_array_property (me, property->name, nr, &string);
|
||
nr++)
|
||
{
|
||
print_string (me, string, p);
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_properties (struct hw *me,
|
||
struct printer *p)
|
||
{
|
||
const struct hw_property *property;
|
||
for (property = hw_find_property (me, NULL);
|
||
property != NULL;
|
||
property = hw_next_property (property))
|
||
{
|
||
if (hw_parent (me) == NULL)
|
||
p->print (p->file, "/%s", property->name);
|
||
else
|
||
p->print (p->file, "%s/%s", hw_path (me), property->name);
|
||
if (property->original != NULL)
|
||
{
|
||
p->print (p->file, " !");
|
||
p->print (p->file, "%s/%s",
|
||
hw_path (property->original->owner),
|
||
property->original->name);
|
||
}
|
||
else
|
||
{
|
||
switch (property->type)
|
||
{
|
||
case array_property:
|
||
{
|
||
if ((property->sizeof_array % sizeof (signed_cell)) == 0)
|
||
{
|
||
unsigned_cell *w = (unsigned_cell*) property->array;
|
||
int cell_nr;
|
||
for (cell_nr = 0;
|
||
cell_nr < (property->sizeof_array / sizeof (unsigned_cell));
|
||
cell_nr++)
|
||
{
|
||
p->print (p->file, " 0x%lx", (unsigned long) BE2H_cell (w[cell_nr]));
|
||
}
|
||
}
|
||
else
|
||
{
|
||
unsigned8 *w = (unsigned8*)property->array;
|
||
p->print (p->file, " [");
|
||
while ((char*)w - (char*)property->array < property->sizeof_array)
|
||
{
|
||
p->print (p->file, " 0x%2x", BE2H_1 (*w));
|
||
w++;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case boolean_property:
|
||
{
|
||
int b = hw_find_boolean_property (me, property->name);
|
||
p->print (p->file, " %s", b ? "true" : "false");
|
||
break;
|
||
}
|
||
#if NOT_YET
|
||
case ihandle_property:
|
||
{
|
||
if (property->array != NULL)
|
||
{
|
||
device_instance *instance = hw_find_ihandle_property (me, property->name);
|
||
p->print (p->file, " *%s", device_instance_path (instance));
|
||
}
|
||
else
|
||
{
|
||
/* not yet initialized, ask the device for the path */
|
||
ihandle_runtime_property_spec spec;
|
||
hw_find_ihandle_runtime_property (me, property->name, &spec);
|
||
p->print (p->file, " *%s", spec.full_path);
|
||
}
|
||
break;
|
||
}
|
||
#endif
|
||
case integer_property:
|
||
{
|
||
unsigned_word w = hw_find_integer_property (me, property->name);
|
||
p->print (p->file, " 0x%lx", (unsigned long)w);
|
||
break;
|
||
}
|
||
case range_array_property:
|
||
{
|
||
print_ranges_property (me, property, p);
|
||
break;
|
||
}
|
||
case reg_array_property:
|
||
{
|
||
print_reg_property (me, property, p);
|
||
break;
|
||
}
|
||
case string_property:
|
||
{
|
||
const char *s = hw_find_string_property (me, property->name);
|
||
print_string (me, s, p);
|
||
break;
|
||
}
|
||
case string_array_property:
|
||
{
|
||
print_string_array_property (me, property, p);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
p->print (p->file, "\n");
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_interrupts (struct hw *me,
|
||
int my_port,
|
||
struct hw *dest,
|
||
int dest_port,
|
||
void *data)
|
||
{
|
||
struct printer *p = data;
|
||
char src[32];
|
||
char dst[32];
|
||
hw_port_encode (me, my_port, src, sizeof (src), output_port);
|
||
hw_port_encode (dest, dest_port, dst, sizeof (dst), input_port);
|
||
p->print (p->file,
|
||
"%s > %s %s %s\n",
|
||
hw_path (me),
|
||
src, dst,
|
||
hw_path (dest));
|
||
}
|
||
|
||
static void
|
||
print_device (struct hw *me,
|
||
void *data)
|
||
{
|
||
struct printer *p = data;
|
||
p->print (p->file, "%s\n", hw_path (me));
|
||
print_properties (me, p);
|
||
hw_port_traverse (me, print_interrupts, data);
|
||
}
|
||
|
||
void
|
||
hw_tree_print (struct hw *root,
|
||
hw_tree_print_callback *print,
|
||
void *file)
|
||
{
|
||
struct printer p;
|
||
p.print = print;
|
||
p.file = file;
|
||
hw_tree_traverse (root,
|
||
print_device, NULL,
|
||
&p);
|
||
}
|
||
|
||
|
||
|
||
#if NOT_YET
|
||
device_instance *
|
||
tree_instance (struct hw *root,
|
||
const char *device_specifier)
|
||
{
|
||
/* find the device node */
|
||
struct hw *me;
|
||
name_specifier spec;
|
||
if (!split_device_specifier (root, device_specifier, &spec))
|
||
return NULL;
|
||
me = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
return NULL;
|
||
/* create the instance */
|
||
return device_create_instance (me, device_specifier, spec.last_args);
|
||
}
|
||
#endif
|
||
|
||
struct hw *
|
||
hw_tree_find_device (struct hw *root,
|
||
const char *path_to_device)
|
||
{
|
||
struct hw *node;
|
||
name_specifier spec;
|
||
|
||
/* parse the path */
|
||
split_device_specifier (root, path_to_device, &spec);
|
||
if (spec.value != NULL)
|
||
return NULL; /* something wierd */
|
||
|
||
/* now find it */
|
||
node = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
return NULL; /* not a leaf */
|
||
|
||
return node;
|
||
}
|
||
|
||
|
||
const struct hw_property *
|
||
hw_tree_find_property (struct hw *root,
|
||
const char *path_to_property)
|
||
{
|
||
name_specifier spec;
|
||
if (!split_property_specifier (root, path_to_property, &spec))
|
||
hw_abort (root, "Invalid property path %s", path_to_property);
|
||
root = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
return NULL; /* not a leaf */
|
||
return hw_find_property (root, spec.property);
|
||
}
|
||
|
||
int
|
||
hw_tree_find_boolean_property (struct hw *root,
|
||
const char *path_to_property)
|
||
{
|
||
name_specifier spec;
|
||
if (!split_property_specifier (root, path_to_property, &spec))
|
||
hw_abort (root, "Invalid property path %s", path_to_property);
|
||
root = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
hw_abort (root, "device \"%s\" not found (property \"%s\")",
|
||
spec.name, path_to_property);
|
||
return hw_find_boolean_property (root, spec.property);
|
||
}
|
||
|
||
signed_cell
|
||
hw_tree_find_integer_property (struct hw *root,
|
||
const char *path_to_property)
|
||
{
|
||
name_specifier spec;
|
||
if (!split_property_specifier (root, path_to_property, &spec))
|
||
hw_abort (root, "Invalid property path %s", path_to_property);
|
||
root = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
hw_abort (root, "device \"%s\" not found (property \"%s\")",
|
||
spec.name, path_to_property);
|
||
return hw_find_integer_property (root, spec.property);
|
||
}
|
||
|
||
#if NOT_YET
|
||
device_instance *
|
||
hw_tree_find_ihandle_property (struct hw *root,
|
||
const char *path_to_property)
|
||
{
|
||
struct hw *root;
|
||
name_specifier spec;
|
||
if (!split_property_specifier (root, path_to_property, &spec))
|
||
hw_abort (root, "Invalid property path %s", path_to_property);
|
||
root = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
hw_abort (root, "device \"%s\" not found (property \"%s\")",
|
||
spec.name, path_to_property);
|
||
return hw_find_ihandle_property (root, spec.property);
|
||
}
|
||
#endif
|
||
|
||
const char *
|
||
hw_tree_find_string_property (struct hw *root,
|
||
const char *path_to_property)
|
||
{
|
||
name_specifier spec;
|
||
if (!split_property_specifier (root, path_to_property, &spec))
|
||
hw_abort (root, "Invalid property path %s", path_to_property);
|
||
root = split_find_device (root, &spec);
|
||
if (spec.name != NULL)
|
||
hw_abort (root, "device \"%s\" not found (property \"%s\")",
|
||
spec.name, path_to_property);
|
||
return hw_find_string_property (root, spec.property);
|
||
}
|