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hardfault_log: add documentation

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This commit is contained in:
Beat Küng
2017-05-04 16:22:42 +02:00
parent 488bc9d7f3
commit b32b0d9b17
1 changed files with 32 additions and 4 deletions
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src/systemcmds/hardfault_log/hardfault_log.c
+32 -4
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@@ -37,6 +37,7 @@
****************************************************************************/
#include <px4_config.h>
#include <px4_module.h>
#include <nuttx/compiler.h>
#include <nuttx/arch.h>
@@ -1122,6 +1123,28 @@ __EXPORT int hardfault_write(char *caller, int fd, int format, bool rearm)
return ret;
}
static void print_usage(void)
{
PRINT_MODULE_DESCRIPTION("Hardfault utility\n"
"\n"
"Used in startup scripts to handle hardfaults\n"
);
PRINT_MODULE_USAGE_NAME("hardfault_log", "command");
PRINT_MODULE_USAGE_COMMAND_DESCR("check", "Check if there's an uncommited hardfault");
PRINT_MODULE_USAGE_COMMAND_DESCR("rearm", "Drop an uncommited hardfault");
PRINT_MODULE_USAGE_COMMAND_DESCR("fault", "Generate a hardfault (this command crashes the system :)");
PRINT_MODULE_USAGE_ARG("0|1", "Hardfault type: 0=divide by 0, 1=Assertion (default=0)", true);
PRINT_MODULE_USAGE_COMMAND_DESCR("commit",
"Write uncommited hardfault to /fs/microsd/fault_%i.txt (and rearm, but don't reset)");
PRINT_MODULE_USAGE_COMMAND_DESCR("count",
"Read the reboot counter, counts the number of reboots of an uncommited hardfault (returned as the exit code of the program)");
PRINT_MODULE_USAGE_COMMAND_DESCR("reset", "Reset the reboot counter");
}
/****************************************************************************
* Name: hardfault_log_main
****************************************************************************/
@@ -1129,6 +1152,11 @@ __EXPORT int hardfault_log_main(int argc, char *argv[])
{
char *self = "hardfault_log";
if (argc <= 1) {
print_usage();
return 1;
}
if (!strcmp(argv[1], "check")) {
return hardfault_check_status(self);
@@ -1147,20 +1175,20 @@ __EXPORT int hardfault_log_main(int argc, char *argv[])
return genfault(fault);
} else if (!strcmp(argv[1], "commit")) {
} else if (!strcmp(argv[1], "commit")) {
return hardfault_commit(self);
} else if (!strcmp(argv[1], "count")) {
} else if (!strcmp(argv[1], "count")) {
return hardfault_increment_reboot(self, false);
} else if (!strcmp(argv[1], "reset")) {
} else if (!strcmp(argv[1], "reset")) {
return hardfault_increment_reboot(self, true);
}
fprintf(stderr, "unrecognised command, try 'check' ,'rearm' , 'fault', 'count', 'reset' or 'commit'\n");
print_usage();
return -EINVAL;
}