git.gag.com Git - fw/altos/blob - ao-tools/ao-load/ao-load.c

   1 /*
   2  * Copyright © 2008 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include <stdlib.h>
  20 #include <limits.h>
  21 #include <stdint.h>
  22 #include <unistd.h>
  23 #include <getopt.h>
  24 #include "ccdbg.h"
  25 #include "cc.h"
  26
  27 #define AO_USB_DESC_STRING              3
  28
  29 struct sym {
  30         unsigned        addr;
  31         char            *name;
  32 } serial_symbols[] = {
  33         { 0,    "_ao_serial_number" },
  34 #define AO_SERIAL_NUMBER        (serial_symbols[0].addr)
  35         { 0,    "_ao_usb_descriptors" },
  36 #define AO_USB_DESCRIPTORS      (serial_symbols[1].addr)
  37 };
  38
  39 #define NUM_SERIAL_SYMBOLS      (sizeof(serial_symbols)/sizeof(serial_symbols[0]))
  40
  41 static int
  42 find_symbols(FILE *map)
  43 {
  44         char    line[2048];
  45         char    *addr, *addr_end;
  46         char    *name;
  47         char    *save;
  48         char    *colon;
  49         unsigned long   a;
  50         int     s;
  51         int     found = 0;
  52
  53         while (fgets(line, sizeof(line), map) != NULL) {
  54                 line[sizeof(line)-1] = '\0';
  55                 addr = strtok_r(line, " \t\n", &save);
  56                 if (!addr)
  57                         continue;
  58                 name = strtok_r(NULL, " \t\n", &save);
  59                 if (!name)
  60                         continue;
  61                 colon = strchr (addr, ':');
  62                 if (!colon)
  63                         continue;
  64                 a = strtoul(colon+1, &addr_end, 16);
  65                 if (a == ULONG_MAX || addr_end == addr)
  66                         continue;
  67                 for (s = 0; s < NUM_SERIAL_SYMBOLS; s++)
  68                         if (!strcmp(serial_symbols[s].name, name)) {
  69                                 serial_symbols[s].addr = (unsigned) a;
  70                                 ++found;
  71                                 break;
  72                         }
  73         }
  74         return found == NUM_SERIAL_SYMBOLS;
  75 }
  76
  77 static int
  78 rewrite(struct hex_image *image, unsigned addr, char *data, int len)
  79 {
  80         int i;
  81         if (addr < image->address || image->address + image->length < addr + len)
  82                 return 0;
  83         printf("rewrite %04x:", addr);
  84         for (i = 0; i < len; i++)
  85                 printf (" %02x", image->data[addr - image->address + i]);
  86         printf(" ->");
  87         for (i = 0; i < len; i++)
  88                 printf (" %02x", data[i]);
  89         printf("\n");
  90         memcpy(image->data + addr - image->address, data, len);
  91 }
  92
  93 static const struct option options[] = {
  94         { .name = "tty", .has_arg = 1, .val = 'T' },
  95         { .name = "device", .has_arg = 1, .val = 'D' },
  96         { 0, 0, 0, 0},
  97 };
  98
  99 static void usage(char *program)
 100 {
 101         fprintf(stderr, "usage: %s [--tty <tty-name>] [--device <device-name>] file.ihx serial-number\n", program);
 102         exit(1);
 103 }
 104
 105 int
 106 main (int argc, char **argv)
 107 {
 108         struct ccdbg    *dbg;
 109         uint8_t         status;
 110         uint16_t        pc;
 111         struct hex_file *hex;
 112         struct hex_image *image;
 113         char            *filename;
 114         FILE            *file;
 115         FILE            *map;
 116         char            *serial_string;
 117         unsigned int    serial;
 118         char            *mapname, *dot;
 119         char            *serial_ucs2;
 120         int             serial_ucs2_len;
 121         char            serial_int[2];
 122         unsigned int    s;
 123         int             i;
 124         unsigned        usb_descriptors;
 125         int             string_num;
 126         char            *tty = NULL;
 127         char            *device = NULL;
 128         int             c;
 129
 130         while ((c = getopt_long(argc, argv, "T:D:", options, NULL)) != -1) {
 131                 switch (c) {
 132                 case 'T':
 133                         tty = optarg;
 134                         break;
 135                 case 'D':
 136                         device = optarg;
 137                         break;
 138                 default:
 139                         usage(argv[0]);
 140                         break;
 141                 }
 142         }
 143         filename = argv[optind];
 144         if (filename == NULL)
 145                 usage(argv[0]);
 146         mapname = strdup(filename);
 147         dot = strrchr(mapname, '.');
 148         if (!dot || strcmp(dot, ".ihx") != 0)
 149                 usage(argv[0]);
 150         strcpy(dot, ".map");
 151
 152         serial_string = argv[optind + 1];
 153         if (serial_string == NULL)
 154                 usage(argv[0]);
 155
 156         file = fopen(filename, "r");
 157         if (!file) {
 158                 perror(filename);
 159                 exit(1);
 160         }
 161         map = fopen(mapname, "r");
 162         if (!map) {
 163                 perror(mapname);
 164                 exit(1);
 165         }
 166         if (!find_symbols(map)) {
 167                 fprintf(stderr, "Cannot find symbols in \"%s\"\n", mapname);
 168                 exit(1);
 169         }
 170         fclose(map);
 171
 172         hex = ccdbg_hex_file_read(file, filename);
 173         fclose(file);
 174         if (!hex) {
 175                 perror(filename);
 176                 exit (1);
 177         }
 178         image = ccdbg_hex_image_create(hex);
 179         if (!image) {
 180                 fprintf(stderr, "image create failed\n");
 181                 exit (1);
 182         }
 183         ccdbg_hex_file_free(hex);
 184
 185         serial = strtoul(serial_string, NULL, 0);
 186         if (!serial)
 187 (argv[0]);
 188
 189         serial_int[0] = serial & 0xff;
 190         serial_int[1] = (serial >> 8) & 0xff;
 191
 192         if (!rewrite(image, AO_SERIAL_NUMBER, serial_int, sizeof (serial_int))) {
 193                 fprintf(stderr, "Cannot rewrite serial integer at %04x\n",
 194                         AO_SERIAL_NUMBER);
 195                 exit(1);
 196         }
 197
 198         usb_descriptors = AO_USB_DESCRIPTORS - image->address;
 199         string_num = 0;
 200         while (image->data[usb_descriptors] != 0 && usb_descriptors < image->length) {
 201                 if (image->data[usb_descriptors+1] == AO_USB_DESC_STRING) {
 202                         ++string_num;
 203                         if (string_num == 4)
 204                                 break;
 205                 }
 206                 usb_descriptors += image->data[usb_descriptors];
 207         }
 208         if (usb_descriptors >= image->length || image->data[usb_descriptors] == 0 ) {
 209                 fprintf(stderr, "Cannot rewrite serial string at %04x\n", AO_USB_DESCRIPTORS);
 210                 exit(1);
 211         }
 212
 213         serial_ucs2_len = image->data[usb_descriptors] - 2;
 214         serial_ucs2 = malloc(serial_ucs2_len);
 215         if (!serial_ucs2) {
 216                 fprintf(stderr, "Malloc(%d) failed\n", serial_ucs2_len);
 217                 exit(1);
 218         }
 219         s = serial;
 220         for (i = serial_ucs2_len / 2; i; i--) {
 221                 serial_ucs2[i * 2 - 1] = 0;
 222                 serial_ucs2[i * 2 - 2] = (s % 10) + '0';
 223                 s /= 10;
 224         }
 225         if (!rewrite(image, usb_descriptors + 2 + image->address, serial_ucs2, serial_ucs2_len))
 226                 usage(argv[0]);
 227
 228         if (!tty)
 229                 tty = cc_usbdevs_find_by_arg(device, "TIDongle");
 230         dbg = ccdbg_open(tty);
 231         if (!dbg)
 232                 exit (1);
 233
 234         ccdbg_add_debug(CC_DEBUG_FLASH);
 235
 236         ccdbg_debug_mode(dbg);
 237         ccdbg_halt(dbg);
 238         if (image->address == 0xf000) {
 239                 printf("Loading %d bytes to execute from RAM\n",
 240                        image->length);
 241                 ccdbg_write_hex_image(dbg, image, 0);
 242         } else if (image->address == 0x0000) {
 243                 printf("Loading %d bytes to execute from FLASH\n",
 244                        image->length);
 245                 ccdbg_flash_hex_image(dbg, image);
 246         } else {
 247                 printf("Cannot load code to 0x%04x\n",
 248                        image->address);
 249                 ccdbg_hex_image_free(image);
 250                 ccdbg_close(dbg);
 251                 exit(1);
 252         }
 253         ccdbg_set_pc(dbg, image->address);
 254         ccdbg_resume(dbg);
 255         ccdbg_close(dbg);
 256         exit (0);
 257 }