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-rw-r--r--scripts/dtc/fdtget.c383
1 files changed, 0 insertions, 383 deletions
diff --git a/scripts/dtc/fdtget.c b/scripts/dtc/fdtget.c
deleted file mode 100644
index a79c3b2aa1..0000000000
--- a/scripts/dtc/fdtget.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
- *
- * Portions from U-Boot cmd_fdt.c (C) Copyright 2007
- * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
- * Based on code written by:
- * Pantelis Antoniou <pantelis.antoniou@gmail.com> and
- * Matthew McClintock <msm@freescale.com>
- *
- * 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
- */
-
-#include <assert.h>
-#include <ctype.h>
-#include <getopt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <libfdt.h>
-
-#include "util.h"
-
-enum display_mode {
- MODE_SHOW_VALUE, /* show values for node properties */
- MODE_LIST_PROPS, /* list the properties for a node */
- MODE_LIST_SUBNODES, /* list the subnodes of a node */
-};
-
-/* Holds information which controls our output and options */
-struct display_info {
- int type; /* data type (s/i/u/x or 0 for default) */
- int size; /* data size (1/2/4) */
- enum display_mode mode; /* display mode that we are using */
- const char *default_val; /* default value if node/property not found */
-};
-
-static void report_error(const char *where, int err)
-{
- fprintf(stderr, "Error at '%s': %s\n", where, fdt_strerror(err));
-}
-
-/**
- * Shows a list of cells in the requested format
- *
- * @param disp Display information / options
- * @param data Data to display
- * @param len Maximum length of buffer
- * @param size Data size to use for display (e.g. 4 for 32-bit)
- * @return 0 if ok, -1 on error
- */
-static int show_cell_list(struct display_info *disp, const char *data, int len,
- int size)
-{
- const uint8_t *p = (const uint8_t *)data;
- char fmt[3];
- int value;
- int i;
-
- fmt[0] = '%';
- fmt[1] = disp->type ? disp->type : 'd';
- fmt[2] = '\0';
- for (i = 0; i < len; i += size, p += size) {
- if (i)
- printf(" ");
- value = size == 4 ? fdt32_ld((const fdt32_t *)p) :
- size == 2 ? (*p << 8) | p[1] : *p;
- printf(fmt, value);
- }
-
- return 0;
-}
-
-/**
- * Displays data of a given length according to selected options
- *
- * If a specific data type is provided in disp, then this is used. Otherwise
- * we try to guess the data type / size from the contents.
- *
- * @param disp Display information / options
- * @param data Data to display
- * @param len Maximum length of buffer
- * @return 0 if ok, -1 if data does not match format
- */
-static int show_data(struct display_info *disp, const char *data, int len)
-{
- int size;
- const char *s;
- int is_string;
-
- /* no data, don't print */
- if (len == 0)
- return 0;
-
- is_string = (disp->type) == 's' ||
- (!disp->type && util_is_printable_string(data, len));
- if (is_string) {
- if (data[len - 1] != '\0') {
- fprintf(stderr, "Unterminated string\n");
- return -1;
- }
- for (s = data; s - data < len; s += strlen(s) + 1) {
- if (s != data)
- printf(" ");
- printf("%s", (const char *)s);
- }
- return 0;
- }
- size = disp->size;
- if (size == -1) {
- size = (len % 4) == 0 ? 4 : 1;
- } else if (len % size) {
- fprintf(stderr, "Property length must be a multiple of "
- "selected data size\n");
- return -1;
- }
-
- return show_cell_list(disp, data, len, size);
-}
-
-/**
- * List all properties in a node, one per line.
- *
- * @param blob FDT blob
- * @param node Node to display
- * @return 0 if ok, or FDT_ERR... if not.
- */
-static int list_properties(const void *blob, int node)
-{
- const char *name;
- int prop;
-
- prop = fdt_first_property_offset(blob, node);
- do {
- /* Stop silently when there are no more properties */
- if (prop < 0)
- return prop == -FDT_ERR_NOTFOUND ? 0 : prop;
- fdt_getprop_by_offset(blob, prop, &name, NULL);
- if (name)
- puts(name);
- prop = fdt_next_property_offset(blob, prop);
- } while (1);
-}
-
-#define MAX_LEVEL 32 /* how deeply nested we will go */
-
-/**
- * List all subnodes in a node, one per line
- *
- * @param blob FDT blob
- * @param node Node to display
- * @return 0 if ok, or FDT_ERR... if not.
- */
-static int list_subnodes(const void *blob, int node)
-{
- int nextoffset; /* next node offset from libfdt */
- uint32_t tag; /* current tag */
- int level = 0; /* keep track of nesting level */
- const char *pathp;
- int depth = 1; /* the assumed depth of this node */
-
- while (level >= 0) {
- tag = fdt_next_tag(blob, node, &nextoffset);
- switch (tag) {
- case FDT_BEGIN_NODE:
- pathp = fdt_get_name(blob, node, NULL);
- if (level <= depth) {
- if (pathp == NULL)
- pathp = "/* NULL pointer error */";
- if (*pathp == '\0')
- pathp = "/"; /* root is nameless */
- if (level == 1)
- puts(pathp);
- }
- level++;
- if (level >= MAX_LEVEL) {
- printf("Nested too deep, aborting.\n");
- return 1;
- }
- break;
- case FDT_END_NODE:
- level--;
- if (level == 0)
- level = -1; /* exit the loop */
- break;
- case FDT_END:
- return 1;
- case FDT_PROP:
- break;
- default:
- if (level <= depth)
- printf("Unknown tag 0x%08X\n", tag);
- return 1;
- }
- node = nextoffset;
- }
- return 0;
-}
-
-/**
- * Show the data for a given node (and perhaps property) according to the
- * display option provided.
- *
- * @param blob FDT blob
- * @param disp Display information / options
- * @param node Node to display
- * @param property Name of property to display, or NULL if none
- * @return 0 if ok, -ve on error
- */
-static int show_data_for_item(const void *blob, struct display_info *disp,
- int node, const char *property)
-{
- const void *value = NULL;
- int len, err = 0;
-
- switch (disp->mode) {
- case MODE_LIST_PROPS:
- err = list_properties(blob, node);
- break;
-
- case MODE_LIST_SUBNODES:
- err = list_subnodes(blob, node);
- break;
-
- default:
- assert(property);
- value = fdt_getprop(blob, node, property, &len);
- if (value) {
- if (show_data(disp, value, len))
- err = -1;
- else
- printf("\n");
- } else if (disp->default_val) {
- puts(disp->default_val);
- } else {
- report_error(property, len);
- err = -1;
- }
- break;
- }
-
- return err;
-}
-
-/**
- * Run the main fdtget operation, given a filename and valid arguments
- *
- * @param disp Display information / options
- * @param filename Filename of blob file
- * @param arg List of arguments to process
- * @param arg_count Number of arguments
- * @return 0 if ok, -ve on error
- */
-static int do_fdtget(struct display_info *disp, const char *filename,
- char **arg, int arg_count, int args_per_step)
-{
- char *blob;
- const char *prop;
- int i, node;
-
- blob = utilfdt_read(filename, NULL);
- if (!blob)
- return -1;
-
- for (i = 0; i + args_per_step <= arg_count; i += args_per_step) {
- node = fdt_path_offset(blob, arg[i]);
- if (node < 0) {
- if (disp->default_val) {
- puts(disp->default_val);
- continue;
- } else {
- report_error(arg[i], node);
- free(blob);
- return -1;
- }
- }
- prop = args_per_step == 1 ? NULL : arg[i + 1];
-
- if (show_data_for_item(blob, disp, node, prop)) {
- free(blob);
- return -1;
- }
- }
-
- free(blob);
-
- return 0;
-}
-
-/* Usage related data. */
-static const char usage_synopsis[] =
- "read values from device tree\n"
- " fdtget <options> <dt file> [<node> <property>]...\n"
- " fdtget -p <options> <dt file> [<node> ]...\n"
- "\n"
- "Each value is printed on a new line.\n"
- USAGE_TYPE_MSG;
-static const char usage_short_opts[] = "t:pld:" USAGE_COMMON_SHORT_OPTS;
-static struct option const usage_long_opts[] = {
- {"type", a_argument, NULL, 't'},
- {"properties", no_argument, NULL, 'p'},
- {"list", no_argument, NULL, 'l'},
- {"default", a_argument, NULL, 'd'},
- USAGE_COMMON_LONG_OPTS,
-};
-static const char * const usage_opts_help[] = {
- "Type of data",
- "List properties for each node",
- "List subnodes for each node",
- "Default value to display when the property is missing",
- USAGE_COMMON_OPTS_HELP
-};
-
-int main(int argc, char *argv[])
-{
- int opt;
- char *filename = NULL;
- struct display_info disp;
- int args_per_step = 2;
-
- /* set defaults */
- memset(&disp, '\0', sizeof(disp));
- disp.size = -1;
- disp.mode = MODE_SHOW_VALUE;
- while ((opt = util_getopt_long()) != EOF) {
- switch (opt) {
- case_USAGE_COMMON_FLAGS
-
- case 't':
- if (utilfdt_decode_type(optarg, &disp.type,
- &disp.size))
- usage("invalid type string");
- break;
-
- case 'p':
- disp.mode = MODE_LIST_PROPS;
- args_per_step = 1;
- break;
-
- case 'l':
- disp.mode = MODE_LIST_SUBNODES;
- args_per_step = 1;
- break;
-
- case 'd':
- disp.default_val = optarg;
- break;
- }
- }
-
- if (optind < argc)
- filename = argv[optind++];
- if (!filename)
- usage("missing filename");
-
- argv += optind;
- argc -= optind;
-
- /* Allow no arguments, and silently succeed */
- if (!argc)
- return 0;
-
- /* Check for node, property arguments */
- if (args_per_step == 2 && (argc % 2))
- usage("must have an even number of arguments");
-
- if (do_fdtget(&disp, filename, argv, argc, args_per_step))
- return 1;
- return 0;
-}
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