Enable packet-based communcation to command processor

[fw/altos] / src / ao_packet_slave.c

diff --git a/src/ao_packet_slave.c b/src/ao_packet_slave.c
new file mode 100644 (file)
index 0000000..ba5ad1c
--- /dev/null
+++ b/src/ao_packet_slave.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "ao.h"
+
+void
+ao_packet_slave(void)
+{
+       ao_radio_set_packet();
+       ao_tx_packet.addr = ao_serial_number;
+       ao_tx_packet.len = AO_PACKET_SYN;
+       while (ao_packet_enable) {
+               ao_packet_recv();
+               ao_packet_send();
+       }
+       ao_exit();
+}
+
+void
+ao_packet_slave_start(void)
+{
+       ao_packet_enable = 1;
+       ao_add_task(&ao_packet_task, ao_packet_slave, "slave");
+}
+
+void
+ao_packet_slave_stop(void)
+{
+       ao_packet_enable = 0;
+       ao_radio_abort();
+       while (ao_packet_task.wchan) {
+               ao_wake_task(&ao_packet_task);
+               ao_yield();
+       }
+       ao_radio_set_telemetry();
+}
+
+void
+ao_packet_slave_init(void)
+{
+       ao_add_stdio(ao_packet_pollchar,
+                    ao_packet_putchar,
+                    ao_packet_flush);
+}