Adding fake entropy providers to allow us to simulate the complete trng.

2 files changed, 196 insertions, 0 deletions

diff --git a/src/tb/fake_modules/avalanche_entropy.v b/src/tb/fake_modules/avalanche_entropy.v
new file mode 100644
index 0000000..857926c
--- /dev/null
+++ b/src/tb/fake_modules/avalanche_entropy.v
@@ -0,0 +1,98 @@
+//======================================================================
+//
+// avalanche_entropy.v
+// -------------------
+// Fake avalanche entropy source. Basically a wrapper around the
+// pseudo entropy core. Used during simulation of the TRNG.
+//
+//
+// Author: Joachim Strombergson
+// Copyright (c) 2015, NORDUnet A/S All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// - Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+//
+// - Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the distribution.
+//
+// - Neither the name of the NORDUnet nor the names of its contributors may
+//   be used to endorse or promote products derived from this software
+//   without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+//======================================================================
+
+module avalanche_entropy(
+                         input wire           clk,
+                         input wire           reset_n,
+
+                         input wire           noise,
+
+                         input wire           cs,
+                         input wire           we,
+                         input wire  [7 : 0]  address,
+                         input wire  [31 : 0] write_data,
+                         output wire [31 : 0] read_data,
+                         output wire          error,
+
+                         input wire           discard,
+                         input wire           test_mode,
+                         output wire          security_error,
+
+                         output wire          entropy_enabled,
+                         output wire [31 : 0] entropy_data,
+                         output wire          entropy_valid,
+                         input wire           entropy_ack,
+
+                         output wire [7 : 0]  debug,
+                         input wire           debug_update
+                        );
+
+
+  //----------------------------------------------------------------
+  // Internal constant and parameter definitions.
+  //----------------------------------------------------------------
+  assign read_data      = 32'h00000000;
+  assign error          = 0;
+  assign security_error = 0;
+  assign debug          = 8'h00;
+
+
+  //----------------------------------------------------------------
+  // Core instantiation.
+  //----------------------------------------------------------------
+  pseudo_entropy core(
+                      .clk(clk),
+                      .reset_n(reset_n),
+
+                      .enable(1),
+
+                      .raw_entropy(noise),
+                      .stats(),
+
+                      .enabled(entropy_enabled),
+                      .entropy_syn(entropy_valid),
+                      .entropy_data(entropy_data),
+                      .entropy_ack(entropy_ack)
+                     );
+
+endmodule // avalanche_entropy
+
+//======================================================================
+// EOF avalanche_entropy.v
+//======================================================================
diff --git a/src/tb/fake_modules/rosc_entropy.v b/src/tb/fake_modules/rosc_entropy.v
new file mode 100644
index 0000000..b66bd90
--- /dev/null
+++ b/src/tb/fake_modules/rosc_entropy.v
@@ -0,0 +1,98 @@
+//======================================================================
+//
+// rosc_entropy.v
+// ---------------
+// Fake rosc entropy source. Basically a wrapper around the
+// pseudo entropy core. Used during simulation of the TRNG.
+//
+//
+// Author: Joachim Strombergson
+// Copyright (c) 2015, NORDUnet A/S All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// - Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+//
+// - Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the distribution.
+//
+// - Neither the name of the NORDUnet nor the names of its contributors may
+//   be used to endorse or promote products derived from this software
+//   without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+//======================================================================
+
+module rosc_entropy(
+                    input wire           clk,
+                    input wire           reset_n,
+
+                    input wire           noise,
+
+                    input wire           cs,
+                    input wire           we,
+                    input wire  [7 : 0]  address,
+                    input wire  [31 : 0] write_data,
+                    output wire [31 : 0] read_data,
+                    output wire          error,
+
+                    input wire           discard,
+                    input wire           test_mode,
+                    output wire          security_error,
+
+                    output wire          entropy_enabled,
+                    output wire [31 : 0] entropy_data,
+                    output wire          entropy_valid,
+                    input wire           entropy_ack,
+
+                    output wire [7 : 0]  debug,
+                    input wire           debug_update
+                   );
+
+
+  //----------------------------------------------------------------
+  // Internal constant and parameter definitions.
+  //----------------------------------------------------------------
+  assign read_data      = 32'h00000000;
+  assign error          = 0;
+  assign security_error = 0;
+  assign debug          = 8'h00;
+
+
+  //----------------------------------------------------------------
+  // Core instantiation.
+  //----------------------------------------------------------------
+  pseudo_entropy core(
+                      .clk(clk),
+                      .reset_n(reset_n),
+
+                      .enable(1),
+
+                      .raw_entropy(noise),
+                      .stats(),
+
+                      .enabled(entropy_enabled),
+                      .entropy_syn(entropy_valid),
+                      .entropy_data(entropy_data),
+                      .entropy_ack(entropy_ack)
+                     );
+
+endmodule // rosc_entropy
+
+//======================================================================
+// EOF rosc_entropy.v
+//======================================================================