net_common working in this state with control udp packets

1 files changed, 49 insertions, 0 deletions

diff --git a/firmware/microblaze/lib/banal.c b/firmware/microblaze/lib/banal.c
new file mode 100644
index 000000000..23f5f3b8a
--- /dev/null
+++ b/firmware/microblaze/lib/banal.c
@@ -0,0 +1,49 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 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/>.
+ */
+
+#include <banal.h>
+
+uint32_t
+get_uint32(const unsigned char *s)
+{
+  return (s[0] << 24) | (s[1] << 16) | (s[2] << 8) | s[3];
+}
+
+uint64_t
+get_uint64(const unsigned char *s)
+{
+  return (((uint64_t)get_uint32(s)) << 32) | get_uint32(s+4);
+}
+
+uint32_t
+divide_uint64(uint64_t dividend, uint32_t divisor)
+{
+    uint32_t result = 0;
+    uint64_t dividend_ = 0;
+    for(int i = 31; i >= 0; i--){
+        //approximate the divisor with the ith result bit set
+        uint64_t tmp = dividend_;
+        tmp += (uint64_t)divisor << i;
+        //set the ith result bit if the approximation is less
+        if (tmp <= dividend){
+            dividend_ = tmp;
+            result |= 1 << i;
+        }
+    }
+    return result;
+}