util/ectool/ectool.c

   1 /* This file is part of the ectool project. */
   2 /* SPDX-License-Identifier: GPL-2.0-only */
   3
   4 #include <stdio.h>
   5 #include <stdint.h>
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <getopt.h>
   9 #if !(defined __NetBSD__ || defined __OpenBSD__)
  10 #include <sys/io.h>
  11 #endif
  12 #include <ec.h>
  13
  14 #if defined __NetBSD__ || defined __OpenBSD__
  15
  16 #include <machine/sysarch.h>
  17
  18 # if defined __i386__
  19 #  define iopl i386_iopl
  20 # elif defined __NetBSD__
  21 #  define iopl x86_64_iopl
  22 # else
  23 #  define iopl amd64_iopl
  24 # endif
  25
  26 #endif
  27
  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 }
  44
  45 void print_usage(const char *name)
  46 {
  47         printf("usage: %s [-vh?Vidq] [-w 0x<addr> -z 0x<data>]\n", name);
  48         printf("\n"
  49                "   -v | --version:                   print the version\n"
  50                "   -h | --help:                      print this help\n\n"
  51                "   -V | --verbose:                   print debug information\n"
  52                "   -p | --getports:                  get EC data & cmd ports from /proc/ioports\n"
  53                "   -d | --dump:                      print RAM\n"
  54                "   -i | --idx:                       print IDX RAM & RAM\n"
  55                "   -q | --query:                     print query byte\n"
  56                "   -w <addr in hex>                  write to addr\n"
  57                "   -z <data in hex>                  write to data\n"
  58                "\n");
  59         exit(1);
  60 }
  61
  62 int verbose = 0, dump_idx = 0, dump_ram = 0, dump_query = 0, get_ports = 0;
  63
  64 int main(int argc, char *argv[])
  65 {
  66         int i, opt, option_index = 0;
  67         long write_data = -1;
  68         long write_addr = -1;
  69
  70         static struct option long_options[] = {
  71                 {"version", 0, 0, 'v'},
  72                 {"help", 0, 0, 'h'},
  73                 {"verbose", 0, 0, 'V'},
  74                 {"idx", 0, 0, 'i'},
  75                 {"query", 0, 0, 'q'},
  76                 {"getports", 0, 0, 'p'},
  77                 {0, 0, 0, 0}
  78         };
  79
  80         if (argv[1] == NULL) {
  81                 print_usage(argv[0]);
  82                 exit(1);
  83         }
  84
  85         while ((opt = getopt_long(argc, argv, "vh?Vidqpw:z:",
  86                                   long_options, &option_index)) != EOF) {
  87                 switch (opt) {
  88                 case 'v':
  89                         print_version();
  90                         exit(0);
  91                         break;
  92                 case 'V':
  93                         verbose = 1;
  94                         break;
  95                 case 'i':
  96                         dump_idx = 1;
  97                         dump_ram = 1;
  98                         break;
  99                 case 'w':
 100                         write_addr = strtol(optarg , NULL, 16);
 101                         break;
 102                 case 'z':
 103                         write_data = strtol(optarg , NULL, 16);
 104                         break;
 105                 case 'd':
 106                         dump_ram = 1;
 107                         break;
 108                 case 'q':
 109                         dump_query = 1;
 110                         break;
 111                 case 'p':
 112                         get_ports = 1;
 113                         break;
 114                 case 'h':
 115                 case '?':
 116                 default:
 117                         print_usage(argv[0]);
 118                         exit(0);
 119                         break;
 120                 }
 121         }
 122
 123         if (optind < argc) {
 124                 fprintf(stderr, "Error: Extra parameter found.\n");
 125                 print_usage(argv[0]);
 126                 exit(1);
 127         }
 128
 129         if (get_ports && get_ec_ports() != 0)
 130                 fprintf(stderr, "Cannot get EC ports from /proc/ioports, "
 131                                 "fallback to default.");
 132
 133         if (iopl(3)) {
 134                 printf("You need to be root.\n");
 135                 exit(1);
 136         }
 137         if (write_addr >= 0 && write_data >= 0) {
 138                 write_addr &= 0xff;
 139                 write_data &= 0xff;
 140                 printf("\nWriting ec %02lx = %02lx\n", write_addr & 0xff, write_data & 0xff);
 141                 ec_write(write_addr & 0xff, write_data & 0xff);
 142         }
 143
 144         /* preserve default - dump_ram if nothing selected */
 145         if (!dump_ram && !dump_idx && !dump_query && (write_addr == -1))
 146                 dump_ram = 1;
 147
 148         if (dump_ram) {
 149                 printf("EC RAM:\n");
 150                 for (i = 0; i < 0x100; i++) {
 151                         if ((i % 0x10) == 0)
 152                                 printf("\n%02x: ", i);
 153                         printf("%02x ", ec_read(i));
 154                 }
 155                 printf("\n\n");
 156         }
 157
 158         if (dump_query) {
 159                 printf("EC QUERY %02x\n", ec_query());
 160         }
 161
 162         if (dump_idx) {
 163                 printf("EC IDX RAM:\n");
 164                 for (i = 0; i < 0x10000; i++) {
 165                         if ((i % 0x10) == 0)
 166                                 printf("\n%04x: ", i);
 167                         printf("%02x ", ec_idx_read(i));
 168                 }
 169                 printf("\n\n");
 170         }
 171
 172         return 0;
 173 }