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

   1 /* flasher for HM-CFG-USB
   2  *
   3  * Copyright (c) 2013-14 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 int main(int argc, char **argv)
  60 {
  61         const char twiddlie[] = { '-', '\\', '|', '/' };
  62         struct hmcfgusb_dev *dev;
  63         struct recv_data rdata;
  64         uint16_t len;
  65         struct firmware *fw;
  66         int block;
  67         int pfd;
  68         int debug = 0;
  69
  70         printf("HM-CFG-USB flasher version " VERSION "\n\n");
  71
  72         if (argc != 2) {
  73                 if (argc == 1)
  74                         fprintf(stderr, "Missing firmware filename!\n\n");
  75
  76                 fprintf(stderr, "Syntax: %s hmusbif.enc\n\n", argv[0]);
  77                 exit(EXIT_FAILURE);
  78         }
  79
  80         fw = firmware_read_firmware(argv[1], debug);
  81         if (!fw)
  82                 exit(EXIT_FAILURE);
  83
  84         hmcfgusb_set_debug(debug);
  85
  86         memset(&rdata, 0, sizeof(rdata));
  87
  88         dev = hmcfgusb_init(parse_hmcfgusb, &rdata);
  89         if (!dev) {
  90                 fprintf(stderr, "Can't initialize HM-CFG-USB\n");
  91                 exit(EXIT_FAILURE);
  92         }
  93
  94         if (!dev->bootloader) {
  95                 fprintf(stderr, "\nHM-CFG-USB not in bootloader mode, entering bootloader.\n");
  96                 hmcfgusb_enter_bootloader(dev);
  97                 fprintf(stderr, "\nWaiting for device to reappear...\n");
  98
  99                 do {
 100                         if (dev) {
 101                                 hmcfgusb_close(dev);
 102                         }
 103                         sleep(1);
 104                 } while (((dev = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) || (!dev->bootloader));
 105         }
 106
 107         printf("\nHM-CFG-USB opened.\n\n");
 108
 109
 110         printf("Flashing %d blocks", fw->fw_blocks);
 111         if (debug) {
 112                 printf("\n");
 113         } else {
 114                 printf(": %c", twiddlie[0]);
 115                 fflush(stdout);
 116         }
 117
 118         for (block = 0; block < fw->fw_blocks; block++) {
 119                 len = fw->fw[block][2] << 8;
 120                 len |= fw->fw[block][3];
 121
 122                 len += 4; /* block nr., length */
 123
 124                 if (debug)
 125                         hexdump(fw->fw[block], len, "F> ");
 126
 127                 rdata.ack = 0;
 128                 if (!hmcfgusb_send(dev, fw->fw[block], len, 0)) {
 129                         perror("\n\nhmcfgusb_send");
 130                         exit(EXIT_FAILURE);
 131                 }
 132
 133                 if (debug)
 134                         printf("Waiting for ack...\n");
 135                 do {
 136                         errno = 0;
 137                         pfd = hmcfgusb_poll(dev, 1);
 138                         if ((pfd < 0) && errno) {
 139                                 if (errno != ETIMEDOUT) {
 140                                         perror("\n\nhmcfgusb_poll");
 141                                         exit(EXIT_FAILURE);
 142                                 }
 143                         }
 144                         if (rdata.ack) {
 145                                 break;
 146                         }
 147                 } while (pfd < 0);
 148
 149                 if (rdata.ack == 2) {
 150                         printf("\n\nFirmware update successfull!\n");
 151                         break;
 152                 }
 153
 154                 if (rdata.ack != 1) {
 155                         fprintf(stderr, "\n\nError flashing block %d, status: %u\n", block, rdata.ack);
 156                         exit(EXIT_FAILURE);
 157                 }
 158
 159                 if (!debug) {
 160                         printf("\b%c", twiddlie[block % sizeof(twiddlie)]);
 161                         fflush(stdout);
 162                 }
 163         }
 164
 165         firmware_free(fw);
 166
 167         hmcfgusb_close(dev);
 168
 169         return EXIT_SUCCESS;
 170 }