From f0ded923cc20dbc39336f3f2e8f083033dba6f9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joachim=20Stro=CC=88mbergson?= <joachim@secworks.se>
Date: Tue, 3 Feb 2015 21:45:24 +0100
Subject: (1) Updated core selector with logic to connect sha256. (2) Adding
 test sw that is able to talk to the sha256 core and perform a hash operation.

---
 sw/test-sha256/test-sha256.c | 107 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 97 insertions(+), 10 deletions(-)

(limited to 'sw/test-sha256')

diff --git a/sw/test-sha256/test-sha256.c b/sw/test-sha256/test-sha256.c
index 25845d0..9f7b331 100644
--- a/sw/test-sha256/test-sha256.c
+++ b/sw/test-sha256/test-sha256.c
@@ -19,9 +19,13 @@
 //------------------------------------------------------------------------------
 // Defines
 //------------------------------------------------------------------------------
-#define SHA256_PREFIX (0x14)
+#define SHA256_PREFIX (0x0000)
 #define SHA_BASE (EIM_BASE_ADDR + SHA256_PREFIX)
 
+#define DEMO_ADDER_BASE_ADDR (EIM_BASE_ADDR + 0x0000)
+#define DEMO_ADDER_X_REG     (DEMO_ADDER_BASE_ADDR + 0)
+#define DEMO_ADDER_Y_REG     (DEMO_ADDER_BASE_ADDR + 4)
+
 
 //------------------------------------------------------------------------------
 // Testing Parameters
@@ -29,16 +33,104 @@
 
 
 //------------------------------------------------------------------------------
-// main()
 //------------------------------------------------------------------------------
-int main()
+void test_regs() 
 {
   unsigned int read_addr;
   unsigned int read_data;
+  unsigned int write_addr;
+  unsigned int write_data;
+  unsigned int i;
+
+//
+//  for (i = 0 ; i < 0x40000 ; i += 4) {
+//    read_addr = EIM_BASE_ADDR + i;
+//    eim_read_32(read_addr, &read_data);
+//    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+//  }
+
+  read_addr = DEMO_ADDER_X_REG;
+  eim_read_32(read_addr, &read_data);
+  printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+
+  read_addr = DEMO_ADDER_Y_REG;
+  eim_read_32(read_addr, &read_data);
+  printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+
+  write_addr = DEMO_ADDER_Y_REG;
+  write_data = 0xaa55aa55;
+  eim_write_32(write_addr, &write_data);
+
+  read_addr = DEMO_ADDER_Y_REG;
+  eim_read_32(read_addr, &read_data);
+  printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+}
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void test_sha256()
+{
+  unsigned int write_addr;
+  unsigned int write_data;
+  unsigned int read_addr;
+  unsigned int read_data;
+  int ok;
+  unsigned int i;
+
+  // Dump register contents. See if we have the core.
+  for (i = 0 ; i < 200 ; i += 4) {
+    read_addr = SHA_BASE + i;
+    eim_read_32(read_addr, &read_data);
+    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+  }
+
+  // Try to iniate block processing and then dump 
+  write_addr = SHA_BASE + 0x20;
+  write_data = 0x00000001;
+  eim_write_32(write_addr, &write_data);
+
+  // Dump register contents. See if we have the core.
+  for (i = 0 ; i < 200 ; i += 4) {
+    read_addr = SHA_BASE + i;
+    eim_read_32(read_addr, &read_data);
+    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+  }
+
+  // Dump register contents. See if we have the core.
+  for (i = 0 ; i < 200 ; i += 4) {
+    read_addr = SHA_BASE + i;
+    eim_read_32(read_addr, &read_data);
+    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+  }
+
+  // Dump register contents. See if we have the core.
+  for (i = 0 ; i < 200 ; i += 4) {
+    read_addr = SHA_BASE + i;
+    eim_read_32(read_addr, &read_data);
+    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+  }
+
+  // Dump register contents. See if we have the core.
+  for (i = 0 ; i < 200 ; i += 4) {
+    read_addr = SHA_BASE + i;
+    eim_read_32(read_addr, &read_data);
+    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
+  }
+
+}
+
+//------------------------------------------------------------------------------
+// main()
+//------------------------------------------------------------------------------
+int main()
+{
+  int ok;
+  unsigned int i;
 
   // try to setup eim (return value should be 1)
   printf("Configuring EIM .. ");
-  int ok = eim_setup();
+  ok = eim_setup();
   if (ok < 1) {
     printf("ERROR\n");
     return EXIT_FAILURE;
@@ -47,12 +139,7 @@ int main()
     printf("EIM Setup ok.\n");
   }
 
-  // Dump register contents. See if we have the core.
-  for (unsigned int i = 0 ; i < 100 ; i += 3) {
-    read_addr = SHA_BASE + i;
-    eim_read_32(read_addr, &read_data);
-    printf("address 0x%08x = 0x%08x\n", read_addr, read_data);
-  }
+  test_sha256();
 
   return 0;
 }
-- 
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