altos: Starting to write cc1120 driver

This does "something" in radio test mode, appearing to generate a
730MHz signal.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/src/drivers/ao_packet_slave.c b/src/drivers/ao_packet_slave.c
new file mode 100644
index 00000000..fd5d443e
--- /dev/null
+++ b/src/drivers/ao_packet_slave.c
@@ -0,0 +1,66 @@
+/*
+ * 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_tx_packet.addr = ao_serial_number;
+	ao_tx_packet.len = AO_PACKET_SYN;
+	while (ao_packet_enable) {
+		if (ao_packet_recv()) {
+			ao_xmemcpy(&ao_tx_packet.callsign, &ao_rx_packet.packet.callsign, AO_MAX_CALLSIGN);
+#if HAS_FLIGHT
+			ao_flight_force_idle = TRUE;
+#endif
+			ao_packet_send();
+		}
+	}
+	ao_exit();
+}
+
+void
+ao_packet_slave_start(void)
+{
+	if (!ao_packet_enable) {
+		ao_packet_enable = 1;
+		ao_add_task(&ao_packet_task, ao_packet_slave, "slave");
+	}
+}
+
+void
+ao_packet_slave_stop(void)
+{
+	if (ao_packet_enable) {
+		ao_packet_enable = 0;
+		while (ao_packet_task.wchan) {
+			ao_radio_recv_abort();
+			ao_delay(AO_MS_TO_TICKS(10));
+		}
+	}
+}
+
+void
+ao_packet_slave_init(uint8_t enable)
+{
+	ao_add_stdio(ao_packet_pollchar,
+		     ao_packet_putchar,
+		     NULL);
+	if (enable)
+		ao_packet_slave_start();
+}