modem: chat: add modem_chat_is_running

Add a helper function to query if the chat instance is currently running
a script.

Signed-off-by: Jordan Yates <[email protected]>

Author: JordanYates

include/zephyr/modem/chat.h

@@ -337,6 +337,14 @@ int modem_chat_init(struct modem_chat *chat, const struct modem_chat_config *con
  */
 int modem_chat_attach(struct modem_chat *chat, struct modem_pipe *pipe);
 
+/**
+ * @brief Check if a script is running
+ * @param chat Chat instance
+ * @returns true if a script is currently running
+ * @returns false if a script is not currently running
+ */
+bool modem_chat_is_running(struct modem_chat *chat);
+
 /**
  * @brief Run script asynchronously
  * @param chat Chat instance

subsys/modem/modem_chat.c

@@ -845,6 +845,11 @@ int modem_chat_attach(struct modem_chat *chat, struct modem_pipe *pipe)
 	return 0;
 }
 
+bool modem_chat_is_running(struct modem_chat *chat)
+{
+	return atomic_test_bit(&chat->script_state, MODEM_CHAT_SCRIPT_STATE_RUNNING_BIT);
+}
+
 int modem_chat_run_script_async(struct modem_chat *chat, const struct modem_chat_script *script)
 {
 	bool script_is_running;