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Diffstat (limited to 'sim/ppc/tree.c')
| -rw-r--r-- | sim/ppc/tree.c | 1256 |
1 files changed, 1256 insertions, 0 deletions
diff --git a/sim/ppc/tree.c b/sim/ppc/tree.c new file mode 100644 index 0000000..3600593 --- /dev/null +++ b/sim/ppc/tree.c @@ -0,0 +1,1256 @@ +/* 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, ®s[reg_nr].address); + chp = parse_size(current, device_parent(current), + chp, ®s[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_nr++) { + print_address(device_parent(me), ®.address); + print_size(me, ®.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_ */ |