util/ectool/ectool.c

   1 /*
   2  * This file is part of the ectool project.
   3  *
   4  * Copyright (C) 2008-2009 coresystems GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdint.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <getopt.h>
  25 #include <sys/io.h>
  26 #include <ec.h>
  27 #include <stdlib.h>
  28
  29 #define ECTOOL_VERSION "0.1"
  30
  31 void print_version(void)
  32 {
  33         printf("ectool v%s -- ", ECTOOL_VERSION);
  34         printf("Copyright (C) 2008-2009 coresystems GmbH\n\n");
  35         printf(
  36         "This program is free software: you can redistribute it and/or modify\n"
  37         "it under the terms of the GNU General Public License as published by\n"
  38         "the Free Software Foundation, version 2 of the License.\n\n"
  39         "This program is distributed in the hope that it will be useful,\n"
  40         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  41         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  42         "GNU General Public License for more details.\n\n"
  43         "You should have received a copy of the GNU General Public License\n"
  44         "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  45 }
  46
  47 void print_usage(const char *name)
  48 {
  49         printf("usage: %s [-vh?Vidq] [-w 0x<addr> -z 0x<data>]\n", name);
  50         printf("\n"
  51                "   -v | --version:                   print the version\n"
  52                "   -h | --help:                      print this help\n\n"
  53                "   -V | --verbose:                   print debug information\n"
  54                "   -d | --dump:                      print RAM\n"
  55                "   -i | --idx:                       print IDX RAM & RAM\n"
  56                "   -q | --query:                     print query byte\n"
  57                "   -w <addr in hex>                  write to addr\n"
  58                "   -z <data in hex>                  write to data\n"
  59                "\n");
  60         exit(1);
  61 }
  62
  63 int verbose = 0, dump_idx = 0, dump_ram = 0, dump_query = 0;
  64
  65 int main(int argc, char *argv[])
  66 {
  67         int i, opt, option_index = 0;
  68         long write_data = -1;
  69         long write_addr = -1;
  70
  71         static struct option long_options[] = {
  72                 {"version", 0, 0, 'v'},
  73                 {"help", 0, 0, 'h'},
  74                 {"verbose", 0, 0, 'V'},
  75                 {"idx", 0, 0, 'i'},
  76                 {"query", 0, 0, 'q'},
  77                 {0, 0, 0, 0}
  78         };
  79
  80         while ((opt = getopt_long(argc, argv, "vh?Vidqw:z:",
  81                                   long_options, &option_index)) != EOF) {
  82                 switch (opt) {
  83                 case 'v':
  84                         print_version();
  85                         exit(0);
  86                         break;
  87                 case 'V':
  88                         verbose = 1;
  89                         break;
  90                 case 'i':
  91                         dump_idx = 1;
  92                         dump_ram = 1;
  93                         break;
  94                 case 'w':
  95                         write_addr = strtol(optarg , NULL, 16);
  96                         break;
  97                 case 'z':
  98                         write_data = strtol(optarg , NULL, 16);
  99                         break;
 100                 case 'd':
 101                         dump_ram = 1;
 102                         break;
 103                 case 'q':
 104                         dump_query = 1;
 105                         break;
 106                 case 'h':
 107                 case '?':
 108                 default:
 109                         print_usage(argv[0]);
 110                         exit(0);
 111                         break;
 112                 }
 113         }
 114
 115         if (iopl(3)) {
 116                 printf("You need to be root.\n");
 117                 exit(1);
 118         }
 119         if (write_addr >= 0 && write_data >= 0) {
 120                 write_addr &= 0xff;
 121                 write_data &= 0xff;
 122                 printf("\nWriting ec %02lx = %02lx\n", write_addr & 0xff, write_data & 0xff);
 123                 ec_write(write_addr & 0xff, write_data & 0xff);
 124         }
 125
 126         /* preserve default - dump_ram if nothing selected */
 127         if (!dump_ram && !dump_idx && !dump_query) {
 128                 dump_ram = 1;
 129         }
 130
 131         if (dump_ram) {
 132                 printf("EC RAM:\n");
 133                 for (i = 0; i < 0x100; i++) {
 134                         if ((i % 0x10) == 0)
 135                                 printf("\n%02x: ", i);
 136                         printf("%02x ", ec_read(i));
 137                 }
 138                 printf("\n\n");
 139         }
 140
 141         if (dump_query) {
 142                 printf("EC QUERY %02x\n", ec_query());
 143         }
 144
 145         if (dump_idx) {
 146                 printf("EC IDX RAM:\n");
 147                 for (i = 0; i < 0x10000; i++) {
 148                         if ((i % 0x10) == 0)
 149                                 printf("\n%04x: ", i);
 150                         printf("%02x ", ec_idx_read(i));
 151                 }
 152                 printf("\n\n");
 153         }
 154
 155         return 0;
 156 }