60 lines
1.8 KiB
Diff
60 lines
1.8 KiB
Diff
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diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
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index cb6f280f4c..585ae5faf1 100644
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--- a/util/ectool/ectool.c
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+++ b/util/ectool/ectool.c
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@@ -52,6 +52,7 @@ void print_usage(const char *name)
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" -d | --dump: print RAM\n"
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" -i | --idx: print IDX RAM & RAM\n"
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" -q | --query: print query byte\n"
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+ " -r <addr in hex> read from addr\n"
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" -w <addr in hex> write to addr\n"
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" -z <data in hex> write to data\n"
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"\n");
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@@ -65,6 +66,7 @@ int main(int argc, char *argv[])
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int i, opt, option_index = 0;
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long write_data = -1;
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long write_addr = -1;
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+ long read_addr = -1;
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static struct option long_options[] = {
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{"version", 0, 0, 'v'},
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@@ -81,7 +83,7 @@ int main(int argc, char *argv[])
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exit(1);
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}
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- while ((opt = getopt_long(argc, argv, "vh?Vidqpw:z:",
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+ while ((opt = getopt_long(argc, argv, "vh?Vidqpr:w:z:",
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long_options, &option_index)) != EOF) {
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switch (opt) {
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case 'v':
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@@ -95,6 +97,9 @@ int main(int argc, char *argv[])
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dump_idx = 1;
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dump_ram = 1;
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break;
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+ case 'r':
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+ read_addr = strtol(optarg , NULL, 16);
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+ break;
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case 'w':
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write_addr = strtol(optarg , NULL, 16);
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break;
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@@ -133,6 +138,7 @@ int main(int argc, char *argv[])
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printf("You need to be root.\n");
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exit(1);
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}
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+
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if (write_addr >= 0 && write_data >= 0) {
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write_addr &= 0xff;
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write_data &= 0xff;
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@@ -140,6 +146,11 @@ int main(int argc, char *argv[])
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ec_write(write_addr & 0xff, write_data & 0xff);
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}
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+ if (read_addr >= 0) {
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+ printf("%02x", ec_read(read_addr));
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+ exit(0);
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+ }
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+
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/* preserve default - dump_ram if nothing selected */
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if (!dump_ram && !dump_idx && !dump_query && (write_addr == -1))
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dump_ram = 1;
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