Initial commit

dtc.c

@@ -0,0 +1,198 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ * 
+ * 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 "dtc.h"
+
+char *join_path(char *path, char *name)
+{
+	int lenp = strlen(path);
+	int lenn = strlen(name);
+	int len;
+	int needslash = 1;
+	char *str;
+
+	len = lenp + lenn + 2;
+	if ((lenp > 0) && (path[lenp-1] == '/')) {
+		needslash = 0;
+		len--;
+	}
+
+	str = xmalloc(len);
+	memcpy(str, path, lenp);
+	if (needslash) {
+		str[lenp] = '/';
+		lenp++;
+	}
+	memcpy(str+lenp, name, lenn+1);
+	return str;
+}
+
+void fill_fullpaths(struct node *tree, char *prefix)
+{
+	struct node *child;
+	char *unit;
+
+	tree->fullpath = join_path(prefix, tree->name);
+
+	unit = strchr(tree->name, '@');
+	if (unit)
+		tree->basenamelen = unit - tree->name;
+	else
+		tree->basenamelen = strlen(tree->name);
+
+	for_each_child(tree, child)
+		fill_fullpaths(child, tree->fullpath);
+}
+
+static FILE *dtc_open_file(char *fname)
+{
+	FILE *f;
+
+	if (streq(fname, "-"))
+		f = stdin;
+	else
+		f = fopen(fname, "r");
+
+	if (! f)
+		die("Couldn't open \"%s\": %s\n", fname, strerror(errno));
+
+	return f;
+}
+
+static void usage(void)
+{
+	fprintf(stderr, "Usage:\n");
+	fprintf(stderr, "\tdtc [options] <input file>\n");
+	fprintf(stderr, "\nOptions:\n");
+	fprintf(stderr, "\t-I <input format>\n");
+	fprintf(stderr, "\t\tInput formats are:\n");
+	fprintf(stderr, "\t\t\tdts - device tree source text\n");
+	fprintf(stderr, "\t\t\tdtb - device tree blob\n");
+	fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n");
+	fprintf(stderr, "\t-O <output format>\n");
+	fprintf(stderr, "\t\tOutput formats are:\n");
+	fprintf(stderr, "\t\t\tdts - device tree source text\n");
+	fprintf(stderr, "\t\t\tdtb - device tree blob\n");
+	fprintf(stderr, "\t\t\tasm - assembler source\n");
+	fprintf(stderr, "\t-V <output version>\n");
+	fprintf(stderr, "\t\tBlob version to produce, defaults to 3 (relevant for dtb\n\t\tand asm output only)\n");
+	fprintf(stderr, "\t-R <number>\n");
+	fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
+	fprintf(stderr, "\t-f\n");
+	fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
+	exit(2);
+}
+
+int main(int argc, char *argv[])
+{
+	struct node *dt;
+	char *inform = "dts";
+	char *outform = "dts";
+	char *outname = "-";
+	int force = 0;
+	char *arg;
+	int opt;
+	FILE *inf = NULL;
+	FILE *outf = NULL;
+	int outversion = 3;
+	int reservenum = 1;
+
+	while ((opt = getopt(argc, argv, "I:O:o:V:R:f")) != EOF) {
+		switch (opt) {
+		case 'I':
+			inform = optarg;
+			break;
+		case 'O':
+			outform = optarg;
+			break;
+		case 'o':
+			outname = optarg;
+			break;
+		case 'V':
+			outversion = strtol(optarg, NULL, 0);
+			break;
+		case 'R':
+			reservenum = strtol(optarg, NULL, 0);
+			break;
+		case 'f':
+			force = 1;
+			break;
+		default:
+			usage();
+		}
+	}
+
+	if (argc > (optind+1))
+		usage();
+	else if (argc < (optind+1))
+		arg = "-";
+	else
+		arg = argv[optind];
+
+	fprintf(stderr, "DTC: %s->%s  on file \"%s\"\n",
+		inform, outform, arg);
+
+	if (streq(inform, "dts")) {
+		inf = dtc_open_file(arg);
+		dt = dt_from_source(inf);
+	} else if (streq(inform, "fs")) {
+		dt = dt_from_fs(arg);
+	} else if(streq(inform, "dtb")) {
+		inf = dtc_open_file(arg);
+		dt = dt_from_blob(inf);
+	} else {
+		die("Unknown input format \"%s\"\n", inform);
+	}
+
+	if (inf && (inf != stdin))
+		fclose(inf);
+
+	if (! dt)
+		die("Couldn't read input tree\n");
+
+	if (! check_device_tree(dt)) {
+		fprintf(stderr, "Input tree has errors\n");
+		if (! force)
+			exit(1);
+	}
+
+	if (streq(outname, "-")) {
+		outf = stdout;
+	} else {
+		outf = fopen(outname, "w");
+		if (! outf)
+			die("Couldn't open output file %s: %s\n",
+			    outname, strerror(errno));
+	}
+
+	if (streq(outform, "dts")) {
+		write_tree_source(outf, dt, 0);
+	} else if (streq(outform, "dtb")) {
+		write_dt_blob(outf, dt, outversion, reservenum);
+	} else if (streq(outform, "asm")) {
+		write_dt_asm(outf, dt, outversion, reservenum);
+	} else if (streq(outform, "null")) {
+		/* do nothing */
+	} else {
+		die("Unknown output format \"%s\"\n", outform);
+	}
+		
+	exit(0);
+}