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binutils-gdb/sim/ppc/tree.c

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Initial creation of sourceware repository
1999-04-16 03:35:26 +02:00
/* This file is part of the program psim.
Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
This program 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 program 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 program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _PARSE_C_
#define _PARSE_C_
#include <stdio.h>
#include <stdarg.h>
#include "basics.h"
#include "device.h"
#include "tree.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include <ctype.h>
/* manipulate/lookup device names */
typedef struct _name_specifier {
/* components in the full length name */
char *path;
char *property;
char *value;
/* current device */
char *name;
char *base;
char *unit;
char *args;
/* previous device */
char *last_name;
char *last_base;
char *last_unit;
char *last_args;
/* work area */
char buf[1024];
} name_specifier;
/* Given a device specifier, break it up into its main components:
path (and if present) property name and property value. */
STATIC_INLINE_TREE\
(int)
split_device_specifier(device *current,
const char *device_specifier,
name_specifier *spec)
{
char *chp = NULL;
/* expand any leading alias if present */
if (current != NULL
&& *device_specifier != '\0'
&& *device_specifier != '.'
&& *device_specifier != '/') {
device *aliases = tree_find_device(current, "/aliases");
char alias[32];
int len = 0;
while (device_specifier[len] != '\0'
&& device_specifier[len] != '/'
&& device_specifier[len] != ':'
&& !isspace(device_specifier[len])) {
alias[len] = device_specifier[len];
len++;
if (len >= sizeof(alias))
error("split_device_specifier: buffer overflow");
}
alias[len] = '\0';
if (aliases != NULL
&& device_find_property(aliases, alias)) {
strcpy(spec->buf, device_find_string_property(aliases, alias));
strcat(spec->buf, device_specifier + len);
}
else {
strcpy(spec->buf, device_specifier);
}
}
else {
strcpy(spec->buf, device_specifier);
}
/* check no overflow */
if (strlen(spec->buf) >= sizeof(spec->buf))
error("split_device_specifier: buffer overflow\n");
/* strip leading spaces */
chp = spec->buf;
while (*chp != '\0' && isspace(*chp))
chp++;
if (*chp == '\0')
return 0;
/* find the path and terminate it with null */
spec->path = chp;
while (*chp != '\0' && !isspace(*chp))
chp++;
if (*chp != '\0') {
*chp = '\0';
chp++;
}
/* and any value */
while (*chp != '\0' && isspace(*chp))
chp++;
spec->value = chp;
/* now go back and chop the property off of the path */
if (spec->value[0] == '\0') {
spec->property = NULL; /*not a property*/
spec->value = NULL;
}
else if (spec->value[0] == '>'
|| spec->value[0] == '<') {
/* an interrupt spec */
spec->property = NULL;
}
else {
chp = strrchr(spec->path, '/');
if (chp == NULL) {
spec->property = spec->path;
spec->path = strchr(spec->property, '\0');
}
else {
*chp = '\0';
spec->property = chp+1;
}
}
/* and mark the rest as invalid */
spec->name = NULL;
spec->base = NULL;
spec->unit = NULL;
spec->args = NULL;
spec->last_name = NULL;
spec->last_base = NULL;
spec->last_unit = NULL;
spec->last_args = NULL;
return 1;
}
/* given a device specifier break it up into its main components -
path and property name - assuming that the last `device' is a
property name. */
STATIC_INLINE_DEVICE\
(int)
split_property_specifier(device *current,
const char *property_specifier,
name_specifier *spec)
{
if (split_device_specifier(current, property_specifier, spec)) {
if (spec->property == NULL) {
/* force the last name to be a property name */
char *chp = strrchr(spec->path, '/');
if (chp == NULL) {
spec->property = spec->path;
spec->path = strrchr(spec->property, '\0');;
}
else {
*chp = '\0';
spec->property = chp+1;
}
}
return 1;
}
else
return 0;
}
/* device the next device name and split it up, return 0 when no more
names to device */
STATIC_INLINE_TREE\
(int)
split_device_name(name_specifier *spec)
{
char *chp;
/* remember what came before */
spec->last_name = spec->name;
spec->last_base = spec->base;
spec->last_unit = spec->unit;
spec->last_args = spec->args;
/* finished? */
if (spec->path[0] == '\0') {
spec->name = NULL;
spec->base = NULL;
spec->unit = NULL;
spec->args = NULL;
return 0;
}
/* break the current device spec from the path */
spec->name = spec->path;
chp = strchr(spec->name, '/');
if (chp == NULL)
spec->path = strchr(spec->name, '\0');
else {
spec->path = chp+1;
*chp = '\0';
}
/* break out the base */
if (spec->name[0] == '(') {
chp = strchr(spec->name, ')');
if (chp == NULL) {
spec->base = spec->name;
}
else {
*chp = '\0';
spec->base = spec->name + 1;
spec->name = chp + 1;
}
}
else {
spec->base = spec->name;
}
/* now break out the unit */
chp = strchr(spec->name, '@');
if (chp == NULL) {
spec->unit = NULL;
chp = spec->name;
}
else {
*chp = '\0';
chp += 1;
spec->unit = chp;
}
/* finally any args */
chp = strchr(chp, ':');
if (chp == NULL)
spec->args = NULL;
else {
*chp = '\0';
spec->args = chp+1;
}
return 1;
}
/* device the value, returning the next non-space token */
STATIC_INLINE_TREE\
(char *)
split_value(name_specifier *spec)
{
char *token;
if (spec->value == NULL)
return NULL;
/* skip leading white space */
while (isspace(spec->value[0]))
spec->value++;
if (spec->value[0] == '\0') {
spec->value = NULL;
return NULL;
}
token = spec->value;
/* find trailing space */
while (spec->value[0] != '\0' && !isspace(spec->value[0]))
spec->value++;
/* chop this value out */
if (spec->value[0] != '\0') {
spec->value[0] = '\0';
spec->value++;
}
return token;
}
/* traverse the path specified by spec starting at current */
STATIC_INLINE_TREE\
(device *)
split_find_device(device *current,
name_specifier *spec)
{
/* strip off (and process) any leading ., .., ./ and / */
while (1) {
if (strncmp(spec->path, "/", strlen("/")) == 0) {
/* cd /... */
while (current != NULL && device_parent(current) != NULL)
current = device_parent(current);
spec->path += strlen("/");
}
else if (strncmp(spec->path, "./", strlen("./")) == 0) {
/* cd ./... */
current = current;
spec->path += strlen("./");
}
else if (strncmp(spec->path, "../", strlen("../")) == 0) {
/* cd ../... */
if (current != NULL && device_parent(current) != NULL)
current = device_parent(current);
spec->path += strlen("../");
}
else if (strcmp(spec->path, ".") == 0) {
/* cd . */
current = current;
spec->path += strlen(".");
}
else if (strcmp(spec->path, "..") == 0) {
/* cd . */
if (current != NULL && device_parent(current) != NULL)
current = device_parent(current);
spec->path += strlen("..");
}
else
break;
}
/* now go through the path proper */
if (current == NULL) {
split_device_name(spec);
return NULL;
}
while (split_device_name(spec)) {
device *child;
for (child = device_child(current);
child != NULL; child = device_sibling(child)) {
if (strcmp(spec->name, device_name(child)) == 0) {
if (spec->unit == NULL)
break;
else {
device_unit phys;
device_decode_unit(current, spec->unit, &phys);
if (memcmp(&phys, device_unit_address(child),
sizeof(device_unit)) == 0)
break;
}
}
}
if (child == NULL)
return current; /* search failed */
current = child;
}
return current;
}
STATIC_INLINE_TREE\
(device *)
split_fill_path(device *current,
const char *device_specifier,
name_specifier *spec)
{
/* break it up */
if (!split_device_specifier(current, device_specifier, spec))
device_error(current, "error parsing %s\n", device_specifier);
/* fill our tree with its contents */
current = split_find_device(current, spec);
/* add any additional devices as needed */
if (spec->name != NULL) {
do {
current = device_create(current, spec->base, spec->name,
spec->unit, spec->args);
} while (split_device_name(spec));
}
return current;
}
INLINE_TREE\
(void)
tree_init(device *root,
psim *system)
{
TRACE(trace_device_tree, ("tree_init(root=0x%lx, system=0x%lx)\n",
(long)root,
(long)system));
/* remove the old, rebuild the new */
tree_traverse(root, device_clean, NULL, system);
tree_traverse(root, device_init_static_properties, NULL, system);
tree_traverse(root, device_init_address, NULL, system);
tree_traverse(root, device_init_runtime_properties, NULL, system);
tree_traverse(root, device_init_data, NULL, system);
}
/* <non-white-space> */
STATIC_INLINE_TREE\
(const char *)
skip_token(const char *chp)
{
while (!isspace(*chp) && *chp != '\0')
chp++;
while (isspace(*chp) && *chp != '\0')
chp++;
return chp;
}
/* count the number of entries */
STATIC_INLINE_TREE\
(int)
count_entries(device *current,
const char *property_name,
const char *property_value,
int modulo)
{
const char *chp = property_value;
int nr_entries = 0;
while (*chp != '\0') {
nr_entries += 1;
chp = skip_token(chp);
}
if ((nr_entries % modulo) != 0) {
device_error(current, "incorrect number of entries for %s property %s, should be multiple of %d",
property_name, property_value, modulo);
}
return nr_entries / modulo;
}
/* parse: <address> ::= <token> ; device dependant */
STATIC_INLINE_TREE\
(const char *)
parse_address(device *current,
device *bus,
const char *chp,
device_unit *address)
{
if (device_decode_unit(bus, chp, address) < 0)
device_error(current, "invalid unit address in %s", chp);
return skip_token(chp);
}
/* parse: <size> ::= <number> { "," <number> } ; */
STATIC_INLINE_TREE\
(const char *)
parse_size(device *current,
device *bus,
const char *chp,
device_unit *size)
{
int i;
int nr;
const char *curr = chp;
memset(size, 0, sizeof(*size));
/* parse the numeric list */
size->nr_cells = device_nr_size_cells(bus);
nr = 0;
while (1) {
char *next;
size->cells[nr] = strtoul(curr, &next, 0);
if (curr == next)
device_error(current, "Problem parsing <size> %s", chp);
nr += 1;
if (next[0] != ',')
break;
if (nr == size->nr_cells)
device_error(current, "Too many values in <size> %s", chp);
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_INLINE_TREE\
(void)
parse_reg_property(device *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, device_parent(current),
chp, &regs[reg_nr].address);
chp = parse_size(current, device_parent(current),
chp, &regs[reg_nr].size);
}
/* create it */
device_add_reg_array_property(current, property_name,
regs, nr_regs);
zfree(regs);
}
/* { <child-address> <parent-address> <child-size> }* */
STATIC_INLINE_TREE\
(void)
parse_ranges_property(device *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, device_parent(current),
chp, &ranges[range_nr].parent_address);
chp = parse_size(current, current,
chp, &ranges[range_nr].size);
}
/* create it */
device_add_range_array_property(current, property_name, ranges, nr_ranges);
zfree(ranges);
}
/* <integer> ... */
STATIC_INLINE_TREE\
(void)
parse_integer_property(device *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))
device_error(current, "buffer overflow");
property_value = end;
}
if (nr_entries == 0)
device_error(current, "error parsing integer property %s (%s)",
property_name, property_value);
else if (nr_entries == 1)
device_add_integer_property(current, property_name, words[0]);
else {
int i;
for (i = 0; i < nr_entries; i++) {
H2BE(words[i]);
}
/* perhaphs integer array property is better */
device_add_array_property(current, property_name, words,
sizeof(words[0]) * nr_entries);
}
}
/* <string> ... */
STATIC_INLINE_TREE\
(void)
parse_string_property(device *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)
device_error(current, "String property %s badly formatted",
property_name);
}
ASSERT(strings[nr_strings] == NULL); /* from zalloc */
/* install it */
if (nr_strings == 0)
device_add_string_property(current, property_name, "");
else if (nr_strings == 1)
device_add_string_property(current, property_name, strings[0]);
else {
const char **specs = (const char**)strings; /* stop a bogus error */
device_add_string_array_property(current, property_name,
specs, nr_strings);
}
/* flush the created string */
while (nr_strings > 0) {
nr_strings--;
zfree(strings[nr_strings]);
}
zfree(strings);
}
/* <path-to-ihandle-device> */
STATIC_INLINE_TREE\
(void)
parse_ihandle_property(device *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 */
device_add_ihandle_runtime_property(current, property,
&ihandle);
}
EXTERN_TREE\
(device *)
tree_parse(device *current,
const char *fmt,
...)
{
char device_specifier[1024];
name_specifier spec;
/* format the path */
{
va_list ap;
va_start(ap, fmt);
vsprintf(device_specifier, fmt, ap);
va_end(ap);
if (strlen(device_specifier) >= sizeof(device_specifier))
error("device_tree_add_deviced: buffer overflow\n");
}
/* construct the tree down to the final device */
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_device_name = split_value(&spec);
device *dest;
/* find my name */
my_port = device_interrupt_decode(current, my_port_name,
output_port);
/* find the dest device and port */
dest = split_fill_path(current, dest_device_name, &dest_spec);
dest_port = device_interrupt_decode(dest, dest_port_name,
input_port);
/* connect the two */
device_interrupt_attach(current,
my_port,
dest,
dest_port,
permenant_object);
}
break;
default:
device_error(current, "unreconised interrupt spec %s\n", spec.value);
break;
}
}
/* is there a property */
if (spec.property != NULL) {
if (strcmp(spec.value, "true") == 0)
device_add_boolean_property(current, spec.property, 1);
else if (strcmp(spec.value, "false") == 0)
device_add_boolean_property(current, spec.property, 0);
else {
const device_property *property;
switch (spec.value[0]) {
case '*':
parse_ihandle_property(current, spec.property, spec.value + 1);
break;
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;
}
device_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 = tree_find_property(current, spec.value);
if (property == NULL)
device_error(current, "property %s not found\n", spec.value);
device_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;
}
INLINE_TREE\
(void)
tree_traverse(device *root,
tree_traverse_function *prefix,
tree_traverse_function *postfix,
void *data)
{
device *child;
if (prefix != NULL)
prefix(root, data);
for (child = device_child(root);
child != NULL;
child = device_sibling(child)) {
tree_traverse(child, prefix, postfix, data);
}
if (postfix != NULL)
postfix(root, data);
}
STATIC_INLINE_TREE\
(void)
print_address(device *bus,
const device_unit *phys)
{
char unit[32];
device_encode_unit(bus, phys, unit, sizeof(unit));
printf_filtered(" %s", unit);
}
STATIC_INLINE_TREE\
(void)
print_size(device *bus,
const device_unit *size)
{
int i;
for (i = 0; i < size->nr_cells; i++)
if (size->cells[i] != 0)
break;
if (i < size->nr_cells) {
printf_filtered(" 0x%lx", (unsigned long)size->cells[i]);
i++;
for (; i < size->nr_cells; i++)
printf_filtered(",0x%lx", (unsigned long)size->cells[i]);
}
else
printf_filtered(" 0");
}
STATIC_INLINE_TREE\
(void)
print_reg_property(device *me,
const device_property *property)
{
int reg_nr;
reg_property_spec reg;
for (reg_nr = 0;
device_find_reg_array_property(me, property->name, reg_nr, &reg);
reg_nr++) {
print_address(device_parent(me), &reg.address);
print_size(me, &reg.size);
}
}
STATIC_INLINE_TREE\
(void)
print_ranges_property(device *me,
const device_property *property)
{
int range_nr;
range_property_spec range;
for (range_nr = 0;
device_find_range_array_property(me, property->name, range_nr, &range);
range_nr++) {
print_address(me, &range.child_address);
print_address(device_parent(me), &range.parent_address);
print_size(me, &range.size);
}
}
STATIC_INLINE_TREE\
(void)
print_string(const char *string)
{
printf_filtered(" \"");
while (*string != '\0') {
switch (*string) {
case '"':
printf_filtered("\\\"");
break;
case '\\':
printf_filtered("\\\\");
break;
default:
printf_filtered("%c", *string);
break;
}
string++;
}
printf_filtered("\"");
}
STATIC_INLINE_TREE\
(void)
print_string_array_property(device *me,
const device_property *property)
{
int nr;
string_property_spec string;
for (nr = 0;
device_find_string_array_property(me, property->name, nr, &string);
nr++) {
print_string(string);
}
}
STATIC_INLINE_TREE\
(void)
print_properties(device *me)
{
const device_property *property;
for (property = device_find_property(me, NULL);
property != NULL;
property = device_next_property(property)) {
printf_filtered("%s/%s", device_path(me), property->name);
if (property->original != NULL) {
printf_filtered(" !");
printf_filtered("%s/%s",
device_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++) {
printf_filtered(" 0x%lx", (unsigned long)BE2H_cell(w[cell_nr]));
}
}
else {
unsigned8 *w = (unsigned8*)property->array;
printf_filtered(" [");
while ((char*)w - (char*)property->array < property->sizeof_array) {
printf_filtered(" 0x%2x", BE2H_1(*w));
w++;
}
}
break;
case boolean_property:
{
int b = device_find_boolean_property(me, property->name);
printf_filtered(" %s", b ? "true" : "false");
}
break;
case ihandle_property:
{
if (property->array != NULL) {
device_instance *instance = device_find_ihandle_property(me, property->name);
printf_filtered(" *%s", device_instance_path(instance));
}
else {
/* not yet initialized, ask the device for the path */
ihandle_runtime_property_spec spec;
device_find_ihandle_runtime_property(me, property->name, &spec);
printf_filtered(" *%s", spec.full_path);
}
}
break;
case integer_property:
{
unsigned_word w = device_find_integer_property(me, property->name);
printf_filtered(" 0x%lx", (unsigned long)w);
}
break;
case range_array_property:
print_ranges_property(me, property);
break;
case reg_array_property:
print_reg_property(me, property);
break;
case string_property:
{
const char *s = device_find_string_property(me, property->name);
print_string(s);
}
break;
case string_array_property:
print_string_array_property(me, property);
break;
}
}
printf_filtered("\n");
}
}
STATIC_INLINE_TREE\
(void)
print_interrupts(device *me,
int my_port,
device *dest,
int dest_port,
void *ignore_or_null)
{
char src[32];
char dst[32];
device_interrupt_encode(me, my_port, src, sizeof(src), output_port);
device_interrupt_encode(dest, dest_port, dst, sizeof(dst), input_port);
printf_filtered("%s > %s %s %s\n",
device_path(me),
src, dst,
device_path(dest));
}
STATIC_INLINE_TREE\
(void)
print_device(device *me,
void *ignore_or_null)
{
printf_filtered("%s\n", device_path(me));
print_properties(me);
device_interrupt_traverse(me, print_interrupts, NULL);
}
INLINE_TREE\
(void)
tree_print(device *root)
{
tree_traverse(root,
print_device, NULL,
NULL);
}
INLINE_TREE\
(void)
tree_usage(int verbose)
{
if (verbose == 1) {
printf_filtered("\n");
printf_filtered("A device/property specifier has the form:\n");
printf_filtered("\n");
printf_filtered(" /path/to/a/device [ property-value ]\n");
printf_filtered("\n");
printf_filtered("and a possible device is\n");
printf_filtered("\n");
}
if (verbose > 1) {
printf_filtered("\n");
printf_filtered("A device/property specifier (<spec>) has the format:\n");
printf_filtered("\n");
printf_filtered(" <spec> ::= <path> [ <value> ] ;\n");
printf_filtered(" <path> ::= { <prefix> } { <node> \"/\" } <node> ;\n");
printf_filtered(" <prefix> ::= ( | \"/\" | \"../\" | \"./\" ) ;\n");
printf_filtered(" <node> ::= <name> [ \"@\" <unit> ] [ \":\" <args> ] ;\n");
printf_filtered(" <unit> ::= <number> { \",\" <number> } ;\n");
printf_filtered("\n");
printf_filtered("Where:\n");
printf_filtered("\n");
printf_filtered(" <name> is the name of a device (list below)\n");
printf_filtered(" <unit> is the unit-address relative to the parent bus\n");
printf_filtered(" <args> additional arguments used when creating the device\n");
printf_filtered(" <value> ::= ( <number> # integer property\n");
printf_filtered(" | \"[\" { <number> } # array property (byte)\n");
printf_filtered(" | \"{\" { <number> } # array property (cell)\n");
printf_filtered(" | [ \"true\" | \"false\" ] # boolean property\n");
printf_filtered(" | \"*\" <path> # ihandle property\n");
printf_filtered(" | \"!\" <path> # copy property\n");
printf_filtered(" | \">\" [ <number> ] <path> # attach interrupt\n");
printf_filtered(" | \"<\" <path> # attach child interrupt\n");
printf_filtered(" | \"\\\"\" <text> # string property\n");
printf_filtered(" | <text> # string property\n");
printf_filtered(" ) ;\n");
printf_filtered("\n");
printf_filtered("And the following are valid device names:\n");
printf_filtered("\n");
}
}
INLINE_TREE\
(device_instance *)
tree_instance(device *root,
const char *device_specifier)
{
/* find the device node */
device *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);
}
INLINE_TREE\
(device *)
tree_find_device(device *root,
const char *path_to_device)
{
device *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;
}
INLINE_TREE\
(const device_property *)
tree_find_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_property(root, spec.property);
}
INLINE_TREE\
(int)
tree_find_boolean_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_boolean_property(root, spec.property);
}
INLINE_TREE\
(signed_cell)
tree_find_integer_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_integer_property(root, spec.property);
}
INLINE_TREE\
(device_instance *)
tree_find_ihandle_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_ihandle_property(root, spec.property);
}
INLINE_TREE\
(const char *)
tree_find_string_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_string_property(root, spec.property);
}
#endif /* _PARSE_C_ */
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