usrp1: pulled in cmake build system for usrp1 firmware

1 files changed, 59 insertions, 0 deletions

diff --git a/firmware/fx2/common/init_gpif.c b/firmware/fx2/common/init_gpif.c
new file mode 100644
index 000000000..edde919be
--- /dev/null
+++ b/firmware/fx2/common/init_gpif.c
@@ -0,0 +1,59 @@
+/*
+ * USRP - Universal Software Radio Peripheral
+ *
+ * Copyright (C) 2003 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Boston, MA  02110-1301  USA
+ */
+
+#include "usrp_common.h"
+
+// These are the tables generated by the Cypress GPIF Designer
+
+extern const char WaveData[128];
+extern const char FlowStates[36];
+extern const char InitData[7];
+
+// The tool is kind of screwed up, in that it doesn't configure some
+// of the ports correctly.  We just use their tables and handle the
+// initialization ourselves.  They also declare that their static
+// initialized data is in xdata, which screws us too.
+
+void
+init_gpif (void)
+{
+  // we've already setup IFCONFIG before calling this...
+
+  GPIFABORT = 0xFF;  // abort any waveforms pending
+  SYNCDELAY;
+ 
+  GPIFREADYCFG = InitData[ 0 ];
+  GPIFCTLCFG = InitData[ 1 ];
+  GPIFIDLECS = InitData[ 2 ];
+  GPIFIDLECTL = InitData[ 3 ];
+  // Hmmm, what's InitData[ 4 ] ...
+  GPIFWFSELECT = InitData[ 5 ];
+  // GPIFREADYSTAT = InitData[ 6 ];	// I think this register is read only...
+ 
+  {
+    BYTE i;
+    
+    for (i = 0; i < 128; i++){
+      GPIF_WAVE_DATA[i] = WaveData[i];
+    }
+  }
+ 
+  FLOWSTATE = 0;		/* ensure it's off */
+}