util/ectool/ectool.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <stdio.h>
   4 #include <stdint.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <getopt.h>
   8 #if !(defined __NetBSD__ || defined __OpenBSD__)
   9 #include <sys/io.h>
  10 #endif
  11 #include <ec.h>
  12
  13 #if defined __NetBSD__ || defined __OpenBSD__
  14
  15 #include <machine/sysarch.h>
  16
  17 # if defined __i386__
  18 #  define iopl i386_iopl
  19 # elif defined __NetBSD__
  20 #  define iopl x86_64_iopl
  21 # else
  22 #  define iopl amd64_iopl
  23 # endif
  24
  25 #endif
  26
  27
  28 #define ECTOOL_VERSION "0.1"
  29
  30 void print_version(void)
  31 {
  32         printf("ectool v%s -- ", ECTOOL_VERSION);
  33         printf("Copyright (C) 2008-2009 coresystems GmbH\n\n");
  34         printf(
  35         "This program is free software: you can redistribute it and/or modify\n"
  36         "it under the terms of the GNU General Public License as published by\n"
  37         "the Free Software Foundation, version 2 of the License.\n\n"
  38         "This program is distributed in the hope that it will be useful,\n"
  39         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  40         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  41         "GNU General Public License for more details.\n\n");
  42 }
  43
  44 void print_usage(const char *name)
  45 {
  46         printf("usage: %s [-vh?Vidq] [-w 0x<addr> -z 0x<data>]\n", name);
  47         printf("\n"
  48                "   -v | --version:                   print the version\n"
  49                "   -h | --help:                      print this help\n\n"
  50                "   -V | --verbose:                   print debug information\n"
  51                "   -p | --getports:                  get EC data & cmd ports from /proc/ioports\n"
  52                "   -d | --dump:                      print RAM\n"
  53                "   -i | --idx:                       print IDX RAM & RAM\n"
  54                "   -q | --query:                     print query byte\n"
  55                "   -w <addr in hex>                  write to addr\n"
  56                "   -z <data in hex>                  write to data\n"
  57                "\n");
  58         exit(1);
  59 }
  60
  61 int verbose = 0, dump_idx = 0, dump_ram = 0, dump_query = 0, get_ports = 0;
  62
  63 int main(int argc, char *argv[])
  64 {
  65         int i, opt, option_index = 0;
  66         long write_data = -1;
  67         long write_addr = -1;
  68
  69         static struct option long_options[] = {
  70                 {"version", 0, 0, 'v'},
  71                 {"help", 0, 0, 'h'},
  72                 {"verbose", 0, 0, 'V'},
  73                 {"idx", 0, 0, 'i'},
  74                 {"query", 0, 0, 'q'},
  75                 {"getports", 0, 0, 'p'},
  76                 {0, 0, 0, 0}
  77         };
  78
  79         if (argv[1] == NULL) {
  80                 print_usage(argv[0]);
  81                 exit(1);
  82         }
  83
  84         while ((opt = getopt_long(argc, argv, "vh?Vidqpw:z:",
  85                                   long_options, &option_index)) != EOF) {
  86                 switch (opt) {
  87                 case 'v':
  88                         print_version();
  89                         exit(0);
  90                         break;
  91                 case 'V':
  92                         verbose = 1;
  93                         break;
  94                 case 'i':
  95                         dump_idx = 1;
  96                         dump_ram = 1;
  97                         break;
  98                 case 'w':
  99                         write_addr = strtol(optarg , NULL, 16);
 100                         break;
 101                 case 'z':
 102                         write_data = strtol(optarg , NULL, 16);
 103                         break;
 104                 case 'd':
 105                         dump_ram = 1;
 106                         break;
 107                 case 'q':
 108                         dump_query = 1;
 109                         break;
 110                 case 'p':
 111                         get_ports = 1;
 112                         break;
 113                 case 'h':
 114                 case '?':
 115                 default:
 116                         print_usage(argv[0]);
 117                         exit(0);
 118                         break;
 119                 }
 120         }
 121
 122         if (optind < argc) {
 123                 fprintf(stderr, "Error: Extra parameter found.\n");
 124                 print_usage(argv[0]);
 125                 exit(1);
 126         }
 127
 128         if (get_ports && get_ec_ports() != 0)
 129                 fprintf(stderr, "Cannot get EC ports from /proc/ioports, "
 130                                 "fallback to default.\n");
 131
 132         if (iopl(3)) {
 133                 printf("You need to be root.\n");
 134                 exit(1);
 135         }
 136         if (write_addr >= 0 && write_data >= 0) {
 137                 write_addr &= 0xff;
 138                 write_data &= 0xff;
 139                 printf("\nWriting ec %02lx = %02lx\n", write_addr & 0xff, write_data & 0xff);
 140                 ec_write(write_addr & 0xff, write_data & 0xff);
 141         }
 142
 143         /* preserve default - dump_ram if nothing selected */
 144         if (!dump_ram && !dump_idx && !dump_query && (write_addr == -1))
 145                 dump_ram = 1;
 146
 147         if (dump_ram) {
 148                 printf("EC RAM:\n");
 149                 for (i = 0; i < 0x100; i++) {
 150                         if ((i % 0x10) == 0)
 151                                 printf("\n%02x: ", i);
 152                         printf("%02x ", ec_read(i));
 153                 }
 154                 printf("\n\n");
 155         }
 156
 157         if (dump_query) {
 158                 printf("EC QUERY %02x\n", ec_query());
 159         }
 160
 161         if (dump_idx) {
 162                 printf("EC IDX RAM:\n");
 163                 for (i = 0; i < 0x10000; i++) {
 164                         if ((i % 0x10) == 0)
 165                                 printf("\n%04x: ", i);
 166                         printf("%02x ", ec_idx_read(i));
 167                 }
 168                 printf("\n\n");
 169         }
 170
 171         return 0;
 172 }