Minimal framework in place to handle udp discovery.

Added usrp2 stuff, udp wrapper, discovery function.
Added app called discover usrps (usrp2 only for now).

1 files changed, 55 insertions, 0 deletions

diff --git a/lib/usrp/mboard/usrp2_fw_common.h b/lib/usrp/mboard/usrp2_fw_common.h
new file mode 100644
index 000000000..eb097c3fe
--- /dev/null
+++ b/lib/usrp/mboard/usrp2_fw_common.h
@@ -0,0 +1,55 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_USRP2_FW_COMMON_H
+#define INCLUDED_USRP2_FW_COMMON_H
+
+/*!
+ * Structs and constants for usrp2 communication.
+ * This header is shared by the firmware and host code.
+ * Therefore, this header may only contain valid C code.
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// udp ports for the usrp2 communication
+// Dynamic and/or private ports: 49152–65535
+#define USRP2_UDP_CTRL_PORT 49152
+#define USRP2_UDP_DATA_PORT 49153
+
+typedef enum{
+    USRP2_CTRL_ID_HELLO
+} usrp2_ctrl_id_t;
+
+typedef struct{
+    uint32_t id;
+    uint32_t seq;
+    union data{
+        struct discovery_addrs{
+            uint32_t ip_addr;
+            uint8_t  mac_addr[6];
+            uint8_t  _padding[2];
+        };
+    };
+} usrp2_ctrl_data_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* INCLUDED_USRP2_FW_COMMON_H */