+/*
+ * Copyright © 2012 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 <err.h>
+#include <fcntl.h>
+#include <gelf.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sysexits.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdbool.h>
+#include "ao-elf.h"
+#include "ccdbg.h"
+#include "cc-usb.h"
+#include "cc.h"
+#include "ao-usbload.h"
+#include "ao-selfload.h"
+#include "ao-verbose.h"
+#include "ao-editaltos.h"
+
+static uint16_t
+get_uint16(struct cc_usb *cc, uint32_t addr)
+{
+ uint16_t result;
+ result = ao_self_get_uint16(cc, addr);
+ printf ("read 0x%08x = 0x%04x\n", addr, result);
+ return result;
+}
+
+/*
+ * Read a 32-bit value from the target device with arbitrary
+ * alignment
+ */
+static uint32_t
+get_uint32(struct cc_usb *cc, uint32_t addr)
+{
+ uint32_t result;
+
+ result = ao_self_get_uint32(cc, addr);
+ printf ("read 0x%08x = 0x%08x\n", addr, result);
+ return result;
+}
+
+/*
+ * Check to see if the target device has been
+ * flashed with a similar firmware image before
+ *
+ * This is done by looking for the same romconfig version,
+ * which should be at the same location as the linker script
+ * places this at 0x100 from the start of the rom section
+ */
+static int
+check_flashed(struct cc_usb *cc)
+{
+ uint16_t romconfig_version = get_uint16(cc, AO_ROMCONFIG_VERSION);
+ uint16_t romconfig_check = get_uint16(cc, AO_ROMCONFIG_CHECK);
+
+ if (romconfig_version != (uint16_t) ~romconfig_check) {
+ fprintf (stderr, "Device has not been flashed before\n");
+ return 0;
+ }
+ return 1;
+}
+
+static const struct option options[] = {
+ { .name = "tty", .has_arg = 1, .val = 'T' },
+ { .name = "device", .has_arg = 1, .val = 'D' },
+ { .name = "cal", .has_arg = 1, .val = 'c' },
+ { .name = "serial", .has_arg = 1, .val = 's' },
+ { .name = "verbose", .has_arg = 1, .val = 'v' },
+ { 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+ fprintf(stderr, "usage: %s [--verbose=<verbose>] [--device=<device>] [-tty=<tty>] [--cal=<radio-cal>] [--serial=<serial>] file.{elf,ihx}\n", program);
+ exit(1);
+}
+
+void
+done(struct cc_usb *cc, int code)
+{
+/* cc_usb_printf(cc, "a\n"); */
+ cc_usb_close(cc);
+ exit (code);
+}
+
+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;
+}
+
+int
+main (int argc, char **argv)
+{
+ char *device = NULL;
+ char *filename;
+ Elf *e;
+ char *serial_end;
+ unsigned int serial = 0;
+ char *serial_ucs2;
+ int serial_ucs2_len;
+ char serial_int[2];
+ unsigned int s;
+ int i;
+ int string_num;
+ uint32_t cal = 0;
+ char cal_int[4];
+ char *cal_end;
+ int c;
+ int was_flashed = 0;
+ struct ao_hex_image *load;
+ int tries;
+ struct cc_usb *cc = NULL;
+ char *tty = NULL;
+ int success;
+ int verbose = 0;
+ struct ao_sym *file_symbols;
+ int num_file_symbols;
+
+ while ((c = getopt_long(argc, argv, "T:D:c:s:v:", options, NULL)) != -1) {
+ switch (c) {
+ case 'T':
+ tty = optarg;
+ break;
+ case 'D':
+ device = optarg;
+ break;
+ case 'c':
+ cal = strtoul(optarg, &cal_end, 10);
+ if (cal_end == optarg || *cal_end != '\0')
+ usage(argv[0]);
+ break;
+ case 's':
+ serial = strtoul(optarg, &serial_end, 10);
+ if (serial_end == optarg || *serial_end != '\0')
+ usage(argv[0]);
+ break;
+ case 'v':
+ verbose++;
+ break;
+ default:
+ usage(argv[0]);
+ break;
+ }
+ }
+
+ ao_verbose = verbose;
+
+ if (verbose > 1)
+ ccdbg_add_debug(CC_DEBUG_BITBANG);
+
+ filename = argv[optind];
+ if (filename == NULL)
+ usage(argv[0]);
+
+ if (ends_with (filename, ".elf")) {
+ load = ao_load_elf(filename, &file_symbols, &num_file_symbols);
+ } else if (ends_with (filename, ".ihx")) {
+ load = ao_hex_load(filename, &file_symbols, &num_file_symbols);
+ } else
+ usage(argv[0]);
+
+ if (ao_editaltos_find_symbols(file_symbols, num_file_symbols, ao_symbols, ao_num_symbols))
+ fprintf(stderr, "Cannot find required symbols\n");
+
+ {
+ int is_loader;
+ int tries;
+
+ for (tries = 0; tries < 3; tries++) {
+ char *this_tty = tty;
+ if (!this_tty)
+ this_tty = cc_usbdevs_find_by_arg(device, "AltosFlash");
+ if (!this_tty)
+ this_tty = cc_usbdevs_find_by_arg(device, "MegaMetrum");
+ if (!this_tty)
+ this_tty = getenv("ALTOS_TTY");
+ if (!this_tty)
+ this_tty="/dev/ttyACM0";
+
+ cc = cc_usb_open(this_tty);
+
+ if (!cc)
+ exit(1);
+ cc_usb_printf(cc, "v\n");
+ is_loader = 0;
+ for (;;) {
+ char line[256];
+ cc_usb_getline(cc, line, sizeof(line));
+ if (!strncmp(line, "altos-loader", 12))
+ is_loader = 1;
+ if (!strncmp(line, "software-version", 16))
+ break;
+ }
+ if (is_loader)
+ break;
+ printf ("rebooting to loader\n");
+ cc_usb_printf(cc, "X\n");
+ cc_usb_close(cc);
+ sleep(1);
+ cc = NULL;
+ }
+ if (!is_loader) {
+ fprintf(stderr, "Cannot switch to boot loader\n");
+ exit(1);
+ }
+#if 0
+ {
+ uint8_t check[256];
+ int i = 0;
+
+ ao_self_block_read(cc, AO_BOOT_APPLICATION_BASE, check);
+ for (;;) {
+ uint8_t block[256];
+ putchar ('.');
+ if (++i == 40) {
+ putchar('\n');
+ i = 0;
+ }
+ fflush(stdout);
+ ao_self_block_write(cc, AO_BOOT_APPLICATION_BASE, block);
+ ao_self_block_read(cc, AO_BOOT_APPLICATION_BASE, block);
+ if (memcmp(block, check, 256) != 0) {
+ fprintf (stderr, "read differed\n");
+ exit(1);
+ }
+ }
+ }
+#endif
+ }
+
+ /* Go fetch existing config values
+ * if available
+ */
+ was_flashed = check_flashed(cc);
+
+ if (!serial) {
+ if (!was_flashed) {
+ fprintf (stderr, "Must provide serial number\n");
+ done(cc, 1);
+ }
+ serial = get_uint16(cc, AO_SERIAL_NUMBER);
+ if (!serial || serial == 0xffff) {
+ fprintf (stderr, "Invalid existing serial %d\n", serial);
+ done(cc, 1);
+ }
+ }
+
+ if (!cal && AO_RADIO_CAL && was_flashed) {
+ cal = get_uint32(cc, AO_RADIO_CAL);
+ if (!cal || cal == 0xffffffff) {
+ fprintf (stderr, "Invalid existing rf cal %d\n", cal);
+ done(cc, 1);
+ }
+ }
+
+ if (!ao_editaltos(load, serial, cal))
+ done(cc, 1);
+
+ /* And flash the resulting image to the device
+ */
+ success = ao_self_write(cc, load);
+
+ if (!success) {
+ fprintf (stderr, "\"%s\": Write failed\n", filename);
+ done(cc, 1);
+ }
+
+ done(cc, 0);
+}
projects / fw / altos / commitdiff