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
  26 #define AO_USB_DESC_STRING              3
  27
  28 struct sym {
  29         unsigned        addr;
  30         char            *name;
  31 } serial_symbols[] = {
  32         { 0,    "_ao_serial_number" },
  33 #define AO_SERIAL_NUMBER        (serial_symbols[0].addr)
  34         { 0,    "_ao_usb_descriptors" },
  35 #define AO_USB_DESCRIPTORS      (serial_symbols[1].addr)
  36 };
  37
  38 #define NUM_SERIAL_SYMBOLS      (sizeof(serial_symbols)/sizeof(serial_symbols[0]))
  39
  40 static int
  41 find_symbols(FILE *map)
  42 {
  43         char    line[2048];
  44         char    *addr, *addr_end;
  45         char    *name;
  46         char    *save;
  47         char    *colon;
  48         unsigned long   a;
  49         int     s;
  50         int     found = 0;
  51
  52         while (fgets(line, sizeof(line), map) != NULL) {
  53                 line[sizeof(line)-1] = '\0';
  54                 addr = strtok_r(line, " \t\n", &save);
  55                 if (!addr)
  56                         continue;
  57                 name = strtok_r(NULL, " \t\n", &save);
  58                 if (!name)
  59                         continue;
  60                 colon = strchr (addr, ':');
  61                 if (!colon)
  62                         continue;
  63                 a = strtoul(colon+1, &addr_end, 16);
  64                 if (a == ULONG_MAX || addr_end == addr)
  65                         continue;
  66                 for (s = 0; s < NUM_SERIAL_SYMBOLS; s++)
  67                         if (!strcmp(serial_symbols[s].name, name)) {
  68                                 serial_symbols[s].addr = (unsigned) a;
  69                                 ++found;
  70                                 break;
  71                         }
  72         }
  73         return found == NUM_SERIAL_SYMBOLS;
  74 }
  75
  76 static int
  77 rewrite(struct hex_image *image, unsigned addr, char *data, int len)
  78 {
  79         int i;
  80         if (addr < image->address || image->address + image->length < addr + len)
  81                 return 0;
  82         printf("rewrite %04x:", addr);
  83         for (i = 0; i < len; i++)
  84                 printf (" %02x", image->data[addr - image->address + i]);
  85         printf(" ->");
  86         for (i = 0; i < len; i++)
  87                 printf (" %02x", data[i]);
  88         printf("\n");
  89         memcpy(image->data + addr - image->address, data, len);
  90 }
  91
  92 static const struct option options[] = {
  93         { .name = "tty", .has_arg = 1, .val = 'T' },
  94         { 0, 0, 0, 0},
  95 };
  96
  97 static void usage(char *program)
  98 {
  99         fprintf(stderr, "usage: %s [--tty <tty-name>] file.ihx serial-number\n", program);
 100         exit(1);
 101 }
 102
 103 int
 104 main (int argc, char **argv)
 105 {
 106         struct ccdbg    *dbg;
 107         uint8_t         status;
 108         uint16_t        pc;
 109         struct hex_file *hex;
 110         struct hex_image *image;
 111         char            *filename;
 112         FILE            *file;
 113         FILE            *map;
 114         char            *serial_string;
 115         unsigned int    serial;
 116         char            *mapname, *dot;
 117         char            *serial_ucs2;
 118         int             serial_ucs2_len;
 119         char            serial_int[2];
 120         unsigned int    s;
 121         int             i;
 122         unsigned        usb_descriptors;
 123         int             string_num;
 124         char            *tty = NULL;
 125         int             c;
 126
 127         while ((c = getopt_long(argc, argv, "T:", options, NULL)) != -1) {
 128                 switch (c) {
 129                 case 'T':
 130                         tty = optarg;
 131                         break;
 132                 default:
 133                         usage(argv[0]);
 134                         break;
 135                 }
 136         }
 137         filename = argv[optind];
 138         if (filename == NULL)
 139                 usage(argv[0]);
 140         mapname = strdup(filename);
 141         dot = strrchr(mapname, '.');
 142         if (!dot || strcmp(dot, ".ihx") != 0)
 143                 usage(argv[0]);
 144         strcpy(dot, ".map");
 145
 146         serial_string = argv[optind + 1];
 147         if (serial_string == NULL)
 148                 usage(argv[0]);
 149
 150         file = fopen(filename, "r");
 151         if (!file) {
 152                 perror(filename);
 153                 exit(1);
 154         }
 155         map = fopen(mapname, "r");
 156         if (!map) {
 157                 perror(mapname);
 158                 exit(1);
 159         }
 160         if (!find_symbols(map)) {
 161                 fprintf(stderr, "Cannot find symbols in \"%s\"\n", mapname);
 162                 exit(1);
 163         }
 164         fclose(map);
 165
 166         hex = ccdbg_hex_file_read(file, filename);
 167         fclose(file);
 168         if (!hex) {
 169                 perror(filename);
 170                 exit (1);
 171         }
 172         image = ccdbg_hex_image_create(hex);
 173         if (!image) {
 174                 fprintf(stderr, "image create failed\n");
 175                 exit (1);
 176         }
 177         ccdbg_hex_file_free(hex);
 178
 179         serial = strtoul(serial_string, NULL, 0);
 180         if (!serial)
 181 (argv[0]);
 182
 183         serial_int[0] = serial & 0xff;
 184         serial_int[1] = (serial >> 8) & 0xff;
 185
 186         if (!rewrite(image, AO_SERIAL_NUMBER, serial_int, sizeof (serial_int))) {
 187                 fprintf(stderr, "Cannot rewrite serial integer at %04x\n",
 188                         AO_SERIAL_NUMBER);
 189                 exit(1);
 190         }
 191
 192         usb_descriptors = AO_USB_DESCRIPTORS - image->address;
 193         string_num = 0;
 194         while (image->data[usb_descriptors] != 0 && usb_descriptors < image->length) {
 195                 if (image->data[usb_descriptors+1] == AO_USB_DESC_STRING) {
 196                         ++string_num;
 197                         if (string_num == 4)
 198                                 break;
 199                 }
 200                 usb_descriptors += image->data[usb_descriptors];
 201         }
 202         if (usb_descriptors >= image->length || image->data[usb_descriptors] == 0 ) {
 203                 fprintf(stderr, "Cannot rewrite serial string at %04x\n", AO_USB_DESCRIPTORS);
 204                 exit(1);
 205         }
 206
 207         serial_ucs2_len = image->data[usb_descriptors] - 2;
 208         serial_ucs2 = malloc(serial_ucs2_len);
 209         if (!serial_ucs2) {
 210                 fprintf(stderr, "Malloc(%d) failed\n", serial_ucs2_len);
 211                 exit(1);
 212         }
 213         s = serial;
 214         for (i = serial_ucs2_len / 2; i; i--) {
 215                 serial_ucs2[i * 2 - 1] = 0;
 216                 serial_ucs2[i * 2 - 2] = (s % 10) + '0';
 217                 s /= 10;
 218         }
 219         if (!rewrite(image, usb_descriptors + 2 + image->address, serial_ucs2, serial_ucs2_len))
 220                 usage(argv[0]);
 221
 222         dbg = ccdbg_open(tty);
 223         if (!dbg)
 224                 exit (1);
 225
 226         ccdbg_add_debug(CC_DEBUG_FLASH);
 227
 228         ccdbg_debug_mode(dbg);
 229         ccdbg_halt(dbg);
 230         if (image->address == 0xf000) {
 231                 printf("Loading %d bytes to execute from RAM\n",
 232                        image->length);
 233                 ccdbg_write_hex_image(dbg, image, 0);
 234         } else if (image->address == 0x0000) {
 235                 printf("Loading %d bytes to execute from FLASH\n",
 236                        image->length);
 237                 ccdbg_flash_hex_image(dbg, image);
 238         } else {
 239                 printf("Cannot load code to 0x%04x\n",
 240                        image->address);
 241                 ccdbg_hex_image_free(image);
 242                 ccdbg_close(dbg);
 243                 exit(1);
 244         }
 245         ccdbg_set_pc(dbg, image->address);
 246         ccdbg_resume(dbg);
 247         ccdbg_close(dbg);
 248         exit (0);
 249 }