+static COMMAND_HELPER(command_help_find, struct command *head,
+ struct command **out)
+{
+ if (0 == CMD_ARGC)
+ return ERROR_INVALID_ARGUMENTS;
+ *out = command_find(head, CMD_ARGV[0]);
+ if (NULL == *out)
+ return ERROR_INVALID_ARGUMENTS;
+ if (--CMD_ARGC == 0)
+ return ERROR_OK;
+ CMD_ARGV++;
+ return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
+}
+
+static COMMAND_HELPER(command_help_show, struct command *c, unsigned n);
+
+static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n)
+{
+ for (struct command *c = head; NULL != c; c = c->next)
+ CALL_COMMAND_HANDLER(command_help_show, c, n);
+ return ERROR_OK;
+}
+static COMMAND_HELPER(command_help_show, struct command *c, unsigned n)
+{
+ command_run_linef(CMD_CTX, "cmd_help {%s} {%s} %d", command_name(c, ' '),
+ c->help ? : "no help available", n);
+
+ if (++n >= 2)
+ return ERROR_OK;
+
+ return CALL_COMMAND_HANDLER(command_help_show_list, c->children, n);
+}
+COMMAND_HANDLER(handle_help_command)
+{
+ struct command *c = CMD_CTX->commands;
+
+ if (0 == CMD_ARGC)
+ return CALL_COMMAND_HANDLER(command_help_show_list, c, 0);
+
+ int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
+ if (ERROR_OK != retval)
+ return retval;
+
+ return CALL_COMMAND_HANDLER(command_help_show, c, 0);
+}
+
+/* sleep command sleeps for <n> miliseconds
+ * this is useful in target startup scripts
+ */
+COMMAND_HANDLER(handle_sleep_command)
+{
+ bool busy = false;
+ if (CMD_ARGC == 2)
+ {
+ if (strcmp(CMD_ARGV[1], "busy") == 0)
+ busy = true;
+ else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ else if (CMD_ARGC < 1 || CMD_ARGC > 2)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ unsigned long duration = 0;
+ int retval = parse_ulong(CMD_ARGV[0], &duration);
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (!busy)
+ {
+ long long then = timeval_ms();
+ while (timeval_ms() - then < (long long)duration)
+ {
+ target_call_timer_callbacks_now();
+ usleep(1000);
+ }
+ }
+ else
+ busy_sleep(duration);
+
+ return ERROR_OK;
+}
+
+struct command_context* command_init(const char *startup_tcl)