1 files changed, 102 insertions, 0 deletions
diff --git a/host/lib/usrp/common/ad9361_transaction.h b/host/lib/usrp/common/ad9361_transaction.h
new file mode 100644
index 000000000..7b41b811f
--- /dev/null
+++ b/host/lib/usrp/common/ad9361_transaction.h
@@ -0,0 +1,102 @@
+//
+// Copyright 2013 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_AD9361_TRANSACTION_H
+#define INCLUDED_AD9361_TRANSACTION_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//various constants
+#define AD9361_TRANSACTION_VERSION 0x4
+#define AD9361_TRANSACTION_MAX_ERROR_MSG 40
+
+//action types
+#define AD9361_ACTION_ECHO 0
+#define AD9361_ACTION_INIT 1
+#define AD9361_ACTION_SET_RX1_GAIN 2
+#define AD9361_ACTION_SET_TX1_GAIN 3
+#define AD9361_ACTION_SET_RX2_GAIN 4
+#define AD9361_ACTION_SET_TX2_GAIN 5
+#define AD9361_ACTION_SET_RX_FREQ 6
+#define AD9361_ACTION_SET_TX_FREQ 7
+#define AD9361_ACTION_SET_CODEC_LOOP 8
+#define AD9361_ACTION_SET_CLOCK_RATE 9
+#define AD9361_ACTION_SET_ACTIVE_CHAINS 10
+
+static inline void ad9361_double_pack(const double input, uint32_t output[2])
+{
+    const uint32_t *p = (const uint32_t *)&input;
+    output[0] = p[0];
+    output[1] = p[1];
+}
+
+static inline double ad9361_double_unpack(const uint32_t input[2])
+{
+    double output = 0.0;
+    uint32_t *p = (uint32_t *)&output;
+    p[0] = input[0];
+    p[1] = input[1];
+    return output;
+}
+
+typedef struct
+{
+    //version is expected to be AD9361_TRANSACTION_VERSION
+    //check otherwise for compatibility
+    uint32_t version;
+
+    //sequence number - increment every call for sanity
+    uint32_t sequence;
+
+    //action tells us what to do, see AD9361_ACTION_*
+    uint32_t action;
+
+    union
+    {
+        //enable mask for chains
+        uint32_t enable_mask;
+
+        //true to enable codec internal loopback
+        uint32_t codec_loop;
+
+        //freq holds request LO freq and result from tune
+        uint32_t freq[2];
+
+        //gain holds request gain and result from action
+        uint32_t gain[2];
+
+        //rate holds request clock rate and result from action
+        uint32_t rate[2];
+
+    } value;
+
+    //error message comes back as a reply -
+    //set to null string for no error \0
+    char error_msg[];
+
+} ad9361_transaction_t;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* INCLUDED_AD9361_TRANSACTION_H */