Merge branch 'master' into usrp_e_next

1 files changed, 50 insertions, 0 deletions

diff --git a/firmware/fx2/common/spi.h b/firmware/fx2/common/spi.h
new file mode 100644
index 000000000..5342b82b8
--- /dev/null
+++ b/firmware/fx2/common/spi.h
@@ -0,0 +1,50 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_SPI_H
+#define INCLUDED_SPI_H
+
+#include "usrp_spi_defs.h"
+
+void init_spi (void);		// one time call to init
+
+// returns non-zero if successful, else 0
+unsigned char
+spi_read (unsigned char header_hi, unsigned char header_lo,
+	  unsigned char enables, unsigned char format,
+	  xdata unsigned char *buf, unsigned char len);
+
+// returns non-zero if successful, else 0
+unsigned char
+spi_write (unsigned char header_hi, unsigned char header_lo,
+	   unsigned char enables, unsigned char format,
+	   const xdata unsigned char *buf, unsigned char len);
+
+// returns non-zero if successful, else 0
+unsigned char
+spi_transact (unsigned char data0, unsigned char data1,
+              unsigned char data2, unsigned char data3,
+	      unsigned char enables, xdata unsigned char *buf,
+              unsigned char len);
+
+
+#endif /* INCLUDED_SPI_H */