Added dataflow protocol files

1 files changed, 83 insertions, 0 deletions

diff --git a/data.proto b/data.proto
new file mode 100644
index 0000000..1506fb0
--- /dev/null
+++ b/data.proto
@@ -0,0 +1,83 @@
+// Protocol for Dataflow
+
+syntax = "proto2";
+
+
+/*
+* SOR codes
+* 
+* |------|----------------------|
+* | Code | Instruction          |
+* |  1   | TX from slave        |
+* |  2   | RX datapoint         |
+* |  3   | RX command           |
+* |------|----------------------|
+*
+*/
+
+message m2s_SOR {
+    required uint32 SOR_code  = 1 [default=1];
+    
+    /* If master wants slave to receive something, it also puts the rx length in the SOR */
+    optional uint32 rx_length = 2;
+}
+
+
+/* DOC Codes
+*
+* |------|----------------------|
+* | Code | Instruction          |
+* |  1   | Unicast command      |
+* |  2   | Multicast command    |
+* |  3   | Broadcast command    |
+* |  4   | Reserved             |
+* |  5   | Data                 |
+* |------|----------------------|
+*
+*/
+
+message s2m_DOC {
+    /* If master wants to receive something from the slave, the slave specifies whether
+       it is sending a command or data */    
+    required uint32 DOC_code  = 1 [default=1];
+
+    /* Also encode the length of the next transmission */
+    required uint32 tx_length = 2 [default=0];
+    
+}
+
+message m2s_CTS {
+    required uint32 timeout = 1;
+}
+
+/* Commands when SOR code is 3 */
+message m2s_command {
+    optional uint32 source_module_id    = 1 [default=1];
+    optional uint32 source_i2c_address  = 2 [default=1];
+    
+    optional bytes  cmd_bytes = 3;
+    optional string cmd_str   = 4;    
+}
+
+/* Commands from slave */
+message s2m_command {
+    optional uint32 dest_module_id           = 1;
+    repeated uint32 dest_module_id_multicast = 2;
+    
+    optional bytes cmd_bytes                 = 3;
+    optional string cmd_str                  = 4;
+}
+
+message _datapoint {
+    required uint32 entity_id    = 1 [default=0];
+    required double data         = 2 [default=0];
+    
+    optional uint32 channel_id   = 3 [default=1];
+    optional uint32 unit_id      = 4 [default=1];
+    optional int32 timestamp     = 5 [default=1];
+    
+}
+
+message s2m_data {
+    repeated _datapoint datapoints = 1;
+}
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