Add support for calling WDIOC_GETSTATUS and printing supported features and status.
Signed-off-by: Shuah Khan skhan@linuxfoundation.org --- .../selftests/watchdog/watchdog-test.c | 44 +++++++++++++++++-- 1 file changed, 41 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index 5db9ad8b543c..e6af6e327eb3 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -6,8 +6,6 @@ * - Could be tested against softdog driver on systems that * don't have watchdog hadrware. * - TODO: -* - WDIOC_GETSTATUS is called when WDIOC_GETBOOTSTATUS is called. -* - Enhance the logic to call WDIOC_GETSTATUS and test return values. * - Enhance coverage of ioctl return values - flags and status. * - Enhance test to add coverage for WDIOC_GETTEMP. * @@ -30,13 +28,14 @@
int fd; const char v = 'V'; -static const char sopts[] = "bdehp:t:Tn:NLf:i"; +static const char sopts[] = "bdehp:st:Tn:NLf:i"; static const struct option lopts[] = { {"bootstatus", no_argument, NULL, 'b'}, {"disable", no_argument, NULL, 'd'}, {"enable", no_argument, NULL, 'e'}, {"help", no_argument, NULL, 'h'}, {"pingrate", required_argument, NULL, 'p'}, + {"status", no_argument, NULL, 's'}, {"timeout", required_argument, NULL, 't'}, {"gettimeout", no_argument, NULL, 'T'}, {"pretimeout", required_argument, NULL, 'n'}, @@ -85,6 +84,7 @@ static void usage(char *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(" -s, --status\t\tGet status & supported features\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"); @@ -107,6 +107,35 @@ struct wdiof_status { const char *status_str; };
+#define WDIOF_NUM_STATUS 8 + +static const struct wdiof_status wdiof_status[WDIOF_NUM_STATUS] = { + {WDIOF_SETTIMEOUT, "Set timeout (in seconds)"}, + {WDIOF_MAGICCLOSE, "Supports magic close char"}, + {WDIOF_PRETIMEOUT, "Pretimeout (in seconds), get/set"}, + {WDIOF_ALARMONLY, "Watchdog triggers a management or other external alarm not a reboot"}, + {WDIOF_KEEPALIVEPING, "Keep alive ping reply"}, + {WDIOS_DISABLECARD, "Turn off the watchdog timer"}, + {WDIOS_ENABLECARD, "Turn on the watchdog timer"}, + {WDIOS_TEMPPANIC, "Kernel panic on temperature trip"}, +}; + +static void print_status(int flags) +{ + int wdiof = 0; + + if (flags == WDIOS_UNKNOWN) { + printf("Unknown status error from WDIOC_GETSTATUS\n"); + return; + } + + for (wdiof = 0; wdiof < WDIOF_NUM_STATUS; wdiof++) { + if (flags & wdiof_status[wdiof].flag) + printf("Support/Status: %s\n", + wdiof_status[wdiof].status_str); + } +} + #define WDIOF_NUM_BOOTSTATUS 7
static const struct wdiof_status wdiof_bootstatus[WDIOF_NUM_BOOTSTATUS] = { @@ -219,6 +248,15 @@ int main(int argc, char *argv[]) ping_rate = DEFAULT_PING_RATE; printf("Watchdog ping rate set to %u seconds.\n", ping_rate); break; + case 's': + flags = 0; + oneshot = 1; + ret = ioctl(fd, WDIOC_GETSTATUS, &flags); + if (!ret) + print_status(flags); + else + printf("WDIOC_GETSTATUS error '%s'\n", strerror(errno)); + break; case 't': flags = strtoul(optarg, NULL, 0); ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);