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authorStefan Reinauer <stepan@coresystems.de>2009-04-22 07:23:00 +0000
committerStefan Reinauer <stepan@openbios.org>2009-04-22 07:23:00 +0000
commitb5ab323a4036d86654c562b957d12f4dd4789bde (patch)
tree6c57ff53e678efc73be10e532ceb2d5f0b56cb4f /util/ectool/ectool.c
parent7e16bf3a5511b83a28769f3ff3622b3ca5aadcab (diff)
downloadcoreboot-b5ab323a4036d86654c562b957d12f4dd4789bde.tar.xz
A small utility to dump the RAM of a laptop's Embedded/Environmental
Controller. Nothing fancy, does not know any laptops, EC types, or what the values mean. It just dumps them. For the dump method, have a look at the ACPI 3.0b spec. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4163 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/ectool/ectool.c')
-rw-r--r--util/ectool/ectool.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
new file mode 100644
index 0000000000..6c1441ec1c
--- /dev/null
+++ b/util/ectool/ectool.c
@@ -0,0 +1,104 @@
+/*
+ * This file is part of the ectool project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/io.h>
+#include <ec.h>
+
+#define ECTOOL_VERSION "0.1"
+
+void print_version(void)
+{
+ printf("ectool v%s -- ", ECTOOL_VERSION);
+ printf("Copyright (C) 2008-2009 coresystems GmbH\n\n");
+ printf(
+ "This program is free software: you can redistribute it and/or modify\n"
+ "it under the terms of the GNU General Public License as published by\n"
+ "the Free Software Foundation, version 2 of the License.\n\n"
+ "This program is distributed in the hope that it will be useful,\n"
+ "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
+ "GNU General Public License for more details.\n\n"
+ "You should have received a copy of the GNU General Public License\n"
+ "along with this program. If not, see <http://www.gnu.org/licenses/>.\n\n");
+}
+
+void print_usage(const char *name)
+{
+ printf("usage: %s [-vh?V]\n", name);
+ printf("\n"
+ " -v | --version: print the version\n"
+ " -h | --help: print this help\n\n"
+ " -V | --verbose: print debug information\n"
+ "\n");
+ exit(1);
+}
+
+int verbose = 0;
+
+int main(int argc, char *argv[])
+{
+ int i, opt, option_index = 0;
+
+ static struct option long_options[] = {
+ {"version", 0, 0, 'v'},
+ {"help", 0, 0, 'h'},
+ {"verbose", 0, 0, 'V'},
+ {0, 0, 0, 0}
+ };
+
+ while ((opt = getopt_long(argc, argv, "vh?V",
+ long_options, &option_index)) != EOF) {
+ switch (opt) {
+ case 'v':
+ print_version();
+ exit(0);
+ break;
+ case 'V':
+ verbose = 1;
+ break;
+ case 'h':
+ case '?':
+ default:
+ print_usage(argv[0]);
+ exit(0);
+ break;
+ }
+ }
+
+ if (iopl(3)) {
+ printf("You need to be root.\n");
+ exit(1);
+ }
+
+ printf("EC RAM:\n");
+ for (i=0; i < 0x100; i++) {
+ if ((i % 0x10) == 0)
+ printf ("\n%02x: ", i);
+ printf("%02x ", ec_read(i));
+ }
+ printf("\n\n");
+ return 0;
+}