Imported Upstream version 3.2.2

[debian/gnuradio] / usrp2 / firmware / lib / buffer_pool.c

diff --git a/usrp2/firmware/lib/buffer_pool.c b/usrp2/firmware/lib/buffer_pool.c
new file mode 100644 (file)
index 0000000..77e7c52
--- /dev/null
+++ b/usrp2/firmware/lib/buffer_pool.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ *
+ * 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 "memory_map.h"
+#include "buffer_pool.h"
+#include "hal_io.h" 
+
+void
+bp_init(void)
+{
+  int i;
+  bp_disable_port(PORT_SERDES);
+  bp_disable_port(PORT_DSP);
+  bp_disable_port(PORT_ETH);
+  bp_disable_port(PORT_RAM);
+
+  for (i = 0; i < NBUFFERS; i++)
+    bp_clear_buf(i);
+}
+
+#ifndef INLINE_BUFFER_POOL
+
+void
+bp_clear_buf(int bufnum)
+{
+  buffer_pool_ctrl->ctrl = BPC_BUFFER(bufnum) | BPC_PORT_NIL | BPC_CLR;
+}
+
+void
+bp_disable_port(int portnum) 
+{
+  // disable buffer connections to this port
+  buffer_pool_ctrl->ctrl = BPC_BUFFER_NIL | BPC_PORT(portnum);
+}
+
+void
+bp_receive_to_buf(int bufnum, int port, int step, int fl, int ll)
+{
+  buffer_pool_ctrl->ctrl = (BPC_READ
+                           | BPC_BUFFER(bufnum)
+                           | BPC_PORT(port)
+                           | BPC_STEP(step)
+                           | BPC_FIRST_LINE(fl)
+                           | BPC_LAST_LINE(ll));
+}
+
+void
+bp_send_from_buf(int bufnum, int port, int step, int fl, int ll)
+{
+  buffer_pool_ctrl->ctrl = (BPC_WRITE
+                           | BPC_BUFFER(bufnum)
+                           | BPC_PORT(port)
+                           | BPC_STEP(step)
+                           | BPC_FIRST_LINE(fl)
+                           | BPC_LAST_LINE(ll));
+}
+
+#endif