+/* callback invoked when a xbee_send is done */
+static int8_t send_msg_cb(int8_t retcode, void *frame, unsigned len,
+ void *arg)
+{
+ struct xbee_recv_hdr *recvframe = frame;
+ uint8_t *done = arg;
+
+ *done = 1;
+ if (retcode == XBEE_USER_RETCODE_TIMEOUT) {
+ printf_P(PSTR("timeout\r\n"));
+ return retcode;
+ }
+ if (retcode == XBEE_USER_RETCODE_BAD_FRAME ||
+ len < sizeof(*recvframe)) {
+ printf_P(PSTR("invalid frame\r\n"));
+ return XBEE_USER_RETCODE_BAD_FRAME;
+ }
+
+ printf_P(PSTR("ok\r\n"));
+ return XBEE_USER_RETCODE_OK;
+}
+
+/* callback invoked to dump the response to AT command */
+static int8_t dump_xbee_atresp_cb(int8_t retcode, void *frame, unsigned len,
+ void *arg)
+{
+ struct xbee_atresp_hdr *recvframe = frame;
+ char atcmd_str[3];
+ char buf[32];
+ uint8_t *done = arg;
+
+ *done = 1;
+ if (retcode == XBEE_USER_RETCODE_TIMEOUT) {
+ printf_P(PSTR("timeout\r\n"));
+ return retcode;
+ }
+ if (retcode == XBEE_USER_RETCODE_BAD_FRAME ||
+ len < sizeof(*recvframe)) {
+ printf_P(PSTR("invalid frame\r\n"));
+ return XBEE_USER_RETCODE_BAD_FRAME;
+ }
+
+ /* get AT command from frame */
+ memcpy(atcmd_str, &recvframe->cmd, 2);
+ atcmd_str[2] = '\0';
+
+ len -= sizeof(*recvframe);
+ atresp_to_str(buf, sizeof(buf), frame);
+ NOTICE(E_USER_XBEE, "status ok, len=%d, %s", len, buf);
+ return XBEE_USER_RETCODE_OK;