selftests: watchdog: Add command line option to show watchdog_info

With the new ioctl(WDIOC_GETSUPPORT) call in place, add a command
line option to show the watchdog_info.

Suggested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 15 insertions, 1 deletions

diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index 6ed822dc2222..f45e510500c0 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -19,7 +19,7 @@
 
 int fd;
 const char v = 'V';
-static const char sopts[] = "bdehp:t:Tn:NLf:";
+static const char sopts[] = "bdehp:t:Tn:NLf:i";
 static const struct option lopts[] = {
         {"bootstatus",          no_argument, NULL, 'b'},
         {"disable",             no_argument, NULL, 'd'},
@@ -32,6 +32,7 @@ static const struct option lopts[] = {
         {"getpretimeout",       no_argument, NULL, 'N'},
         {"gettimeleft",         no_argument, NULL, 'L'},
         {"file",          required_argument, NULL, 'f'},
+        {"info",                no_argument, NULL, 'i'},
         {NULL,                  no_argument, NULL, 0x0}
 };
 
@@ -72,6 +73,7 @@ static void usage(char *progname)
         printf("Usage: %s [options]\n", progname);
         printf(" -f, --file\t\tOpen watchdog device file\n");
         printf("\t\t\tDefault is /dev/watchdog\n");
+        printf(" -i, --info\t\tShow watchdog_info\n");
         printf(" -b, --bootstatus\tGet last boot status (Watchdog/POR)\n");
         printf(" -d, --disable\t\tTurn off the watchdog timer\n");
         printf(" -e, --enable\t\tTurn on the watchdog timer\n");
@@ -216,6 +218,18 @@ int main(int argc, char *argv[])
                 case 'f':
                         /* Handled above */
                         break;
+                case 'i':
+                        /*
+                         * watchdog_info was obtained as part of file open
+                         * validation. So we just show it here.
+                         */
+                        oneshot = 1;
+                        printf("watchdog_info:\n");
+                        printf(" identity:\t\t%s\n", info.identity);
+                        printf(" firmware_version:\t%u\n",
+                               info.firmware_version);
+                        printf(" options:\t\t%08x\n", info.options);
+                        break;
 
                 default:
                         usage(argv[0]);