git.zerfleddert.de Git - hmcfgusb/blob - flash-hmcfgusb.c

   1 /* flasher for HM-CFG-USB
   2  *
   3  * Copyright (c) 2013-16 Michael Gernoth <michael@gernoth.net>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to
   7  * deal in the Software without restriction, including without limitation the
   8  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   9  * sell copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include <stdint.h>
  28 #include <string.h>
  29 #include <strings.h>
  30 #include <poll.h>
  31 #include <errno.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #include <fcntl.h>
  35 #include <sys/time.h>
  36 #include <libusb-1.0/libusb.h>
  37
  38 #include "hexdump.h"
  39 #include "firmware.h"
  40 #include "version.h"
  41 #include "hmcfgusb.h"
  42
  43 struct recv_data {
  44         int ack;
  45 };
  46
  47 static int parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
  48 {
  49         struct recv_data *rdata = data;
  50
  51         if (buf_len != 1)
  52                 return 1;
  53
  54         rdata->ack = buf[0];
  55
  56         return 1;
  57 }
  58
  59 void flash_hmcfgusb_syntax(char *prog)
  60 {
  61         fprintf(stderr, "Syntax: %s [options] filename.enc\n\n", prog);
  62         fprintf(stderr, "Possible options:\n");
  63         fprintf(stderr, "\t-S serial\tuse HM-CFG-USB with given serial\n");
  64         fprintf(stderr, "\t-V\t\tshow version (" VERSION ")\n");
  65
  66 }
  67
  68 int main(int argc, char **argv)
  69 {
  70         const char twiddlie[] = { '-', '\\', '|', '/' };
  71         struct hmcfgusb_dev *dev;
  72         struct recv_data rdata;
  73         uint16_t len;
  74         struct firmware *fw;
  75         char *serial = NULL;
  76         char *filename = NULL;
  77         int block;
  78         int pfd;
  79         int opt;
  80         int debug = 0;
  81
  82         while((opt = getopt(argc, argv, "S:V")) != -1) {
  83                 switch (opt) {
  84                         case 'S':
  85                                 serial = optarg;
  86                                 break;
  87                         case 'V':
  88                                 printf("flash-hmcfgusb " VERSION "\n");
  89                                 printf("Copyright (c) 2013-16 Michael Gernoth\n\n");
  90                                 exit(EXIT_SUCCESS);
  91                         case 'h':
  92                         case ':':
  93                         case '?':
  94                         default:
  95                                 flash_hmcfgusb_syntax(argv[0]);
  96                                 exit(EXIT_FAILURE);
  97                                 break;
  98                 }
  99         }
 100
 101         if (optind == argc - 1) {
 102                 filename = argv[optind];
 103         }
 104
 105         printf("HM-CFG-USB flasher version " VERSION "\n\n");
 106
 107         if (!filename) {
 108                 fprintf(stderr, "Missing firmware filename!\n\n");
 109                 flash_hmcfgusb_syntax(argv[0]);
 110                 exit(EXIT_FAILURE);
 111         }
 112
 113         fw = firmware_read_firmware(filename, debug);
 114         if (!fw)
 115                 exit(EXIT_FAILURE);
 116
 117         hmcfgusb_set_debug(debug);
 118
 119         memset(&rdata, 0, sizeof(rdata));
 120
 121         dev = hmcfgusb_init(parse_hmcfgusb, &rdata, serial);
 122         if (!dev) {
 123                 fprintf(stderr, "Can't initialize HM-CFG-USB\n");
 124                 exit(EXIT_FAILURE);
 125         }
 126
 127         if (!dev->bootloader) {
 128                 fprintf(stderr, "\nHM-CFG-USB not in bootloader mode, entering bootloader.\n");
 129                 fprintf(stderr, "\nWaiting for device to reappear...\n");
 130
 131                 do {
 132                         if (dev) {
 133                                 if (!dev->bootloader)
 134                                         hmcfgusb_enter_bootloader(dev);
 135                                 hmcfgusb_close(dev);
 136                         }
 137                         sleep(1);
 138                 } while (((dev = hmcfgusb_init(parse_hmcfgusb, &rdata, serial)) == NULL) || (!dev->bootloader));
 139         }
 140
 141         printf("\nHM-CFG-USB opened.\n\n");
 142
 143
 144         printf("Flashing %d blocks", fw->fw_blocks);
 145         if (debug) {
 146                 printf("\n");
 147         } else {
 148                 printf(": %c", twiddlie[0]);
 149                 fflush(stdout);
 150         }
 151
 152         for (block = 0; block < fw->fw_blocks; block++) {
 153                 len = fw->fw[block][2] << 8;
 154                 len |= fw->fw[block][3];
 155
 156                 len += 4; /* block nr., length */
 157
 158                 if (debug)
 159                         hexdump(fw->fw[block], len, "F> ");
 160
 161                 rdata.ack = 0;
 162                 if (!hmcfgusb_send(dev, fw->fw[block], len, 0)) {
 163                         perror("\n\nhmcfgusb_send");
 164                         exit(EXIT_FAILURE);
 165                 }
 166
 167                 if (debug)
 168                         printf("Waiting for ack...\n");
 169                 do {
 170                         errno = 0;
 171                         pfd = hmcfgusb_poll(dev, 1000);
 172                         if ((pfd < 0) && errno) {
 173                                 if (errno != ETIMEDOUT) {
 174                                         perror("\n\nhmcfgusb_poll");
 175                                         exit(EXIT_FAILURE);
 176                                 }
 177                         }
 178                         if (rdata.ack) {
 179                                 break;
 180                         }
 181                 } while (pfd < 0);
 182
 183                 if (rdata.ack == 2) {
 184                         printf("\n\nFirmware update successfull!\n");
 185                         break;
 186                 }
 187
 188                 if (rdata.ack != 1) {
 189                         fprintf(stderr, "\n\nError flashing block %d, status: %u\n", block, rdata.ack);
 190                         exit(EXIT_FAILURE);
 191                 }
 192
 193                 if (!debug) {
 194                         printf("\b%c", twiddlie[block % sizeof(twiddlie)]);
 195                         fflush(stdout);
 196                 }
 197         }
 198
 199         firmware_free(fw);
 200
 201         hmcfgusb_close(dev);
 202         hmcfgusb_exit();
 203
 204         return EXIT_SUCCESS;
 205 }