+/*
+ * Copyright © 2016 Keith Packard <keithp@keithp.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; version 2 of the License.
+ *
+ * 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 <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include "ao-hex.h"
+#include "ao-elf.h"
+#include "ao-dfu.h"
+
+static const struct option options[] = {
+ { .name = "verbose", .has_arg = 0, .val = 'v' },
+ { .name = "output", .has_arg = 1, .val = 'o' },
+ { .name = "base", .has_arg = 1, .val = 'b' },
+ { .name = "align", .has_arg = 1, .val = 'a' },
+ { .name = "dfu", .has_arg = 0, .val = 'd' },
+ { 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+ fprintf(stderr, "usage: %s [--verbose=<level>] [--output=<output.bin>] [--base=<base-address>] [--align=<align>] [--dfu] <input.elf> ...\n", program);
+ exit(1);
+}
+
+static int
+ends_with(char *whole, char *suffix)
+{
+ int whole_len = strlen(whole);
+ int suffix_len = strlen(suffix);
+
+ if (suffix_len > whole_len)
+ return 0;
+ return strcmp(whole + whole_len - suffix_len, suffix) == 0;
+}
+
+static struct ao_dfu_info dfu_info = {
+ .bcdDevice = 0x0000,
+ .idProduct = 0xdf11,
+ .idVendor = 0x0483,
+};
+
+int
+main (int argc, char **argv)
+{
+ char *output = NULL;
+ struct ao_hex_image *image = NULL;
+ struct ao_sym *file_symbols;
+ int num_file_symbols;
+ FILE *file;
+ int c;
+ uint32_t base = 0xffffffff;
+ uint32_t align = 0;
+ uint32_t length;
+ int verbose = 0;
+ int dfu = 0;
+
+ while ((c = getopt_long(argc, argv, "dvo:b:a:", options, NULL)) != -1) {
+ switch (c) {
+ case 'o':
+ output = optarg;
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case 'b':
+ base = strtoul(optarg, NULL, 0);
+ break;
+ case 'a':
+ align = strtoul(optarg, NULL, 0);
+ break;
+ case 'd':
+ dfu = 1;
+ break;
+ default:
+ usage(argv[0]);
+ break;
+ }
+ }
+
+ while (argv[optind]) {
+ char *input = argv[optind];
+ struct ao_hex_image *tmp;
+
+ if (ends_with (input, ".ihx"))
+ tmp = ao_hex_load(input, &file_symbols, &num_file_symbols);
+ else
+ tmp = ao_load_elf(input, &file_symbols, &num_file_symbols);
+
+ if (!tmp)
+ usage(argv[0]);
+
+ if (verbose)
+ fprintf(stderr, "%s: 0x%x %d\n", input, tmp->address, tmp->length);
+
+ if (image) {
+ image = ao_hex_image_cat(image, tmp);
+ if (!image)
+ usage(argv[0]);
+ } else
+ image = tmp;
+ optind++;
+ }
+
+ if (base != 0xffffffff && base > image->address) {
+ fprintf(stderr, "requested base 0x%x is after image address 0x%x\n",
+ base, image->address);
+ usage(argv[0]);
+ }
+
+ if (verbose)
+ fprintf(stderr, "%s: base 0x%x length %d\n", output ? output : "<stdout>", image->address, image->length);
+
+ if (!output)
+ file = stdout;
+ else {
+ file = fopen(output, "w");
+ if (!file) {
+ perror(output);
+ exit(1);
+ }
+ }
+
+ if (dfu) {
+ if (!ao_dfu_write(file, &dfu_info, 1, image)) {
+ fprintf(stderr, "%s: dfu_write failed: %s\n", output, strerror(errno));
+ if (output)
+ unlink(output);
+ exit(1);
+ }
+ } else {
+ while (base < image->address) {
+ fputc(0xff, file);
+ base++;
+ }
+
+ if (fwrite(image->data, 1, image->length, file) != image->length) {
+ fprintf(stderr, "%s: failed to write bin file\n", output ? output : "<stdout>");
+ if (output)
+ unlink(output);
+ exit(1);
+ }
+
+ if (align) {
+ length = image->length;
+
+ while (length % align) {
+ fputc(0xff, file);
+ length++;
+ }
+ }
+ fflush(file);
+ }
+
+ exit(0);
+}