1 files changed, 77 insertions, 0 deletions
diff --git a/firmware/fx2/common/usrp_common.h b/firmware/fx2/common/usrp_common.h
new file mode 100644
index 000000000..fd203927f
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+++ b/firmware/fx2/common/usrp_common.h
@@ -0,0 +1,77 @@
+/* 
+ * USRP - Universal Software Radio Peripheral
+ *
+ * Copyright (C) 2003,2006 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
+ */
+
+/*
+ * common defines and prototypes for USRP
+ *
+ * In comments below "TRM" refers to the EZ-USB FX2 Technical Reference Manual
+ */
+
+#ifndef _USRPCOMMON_H_
+#define _USRPCOMMON_H_
+
+#include "usrp_config.h"
+#include "usrp_regs.h"
+#include "syncdelay.h"
+
+/*
+ * From TRM page 15-105:
+ *
+ * Under certain conditions, some read and write access to the FX2
+ * registers must be separated by a "synchronization delay".  The
+ * delay is necessary only under the following conditions:
+ *
+ *   - between a write to any register in the 0xE600 - 0xE6FF range 
+ *     and a write to one of the registers listed below.
+ *
+ *   - between a write to one of the registers listed below and a read 
+ *     from any register in the 0xE600 - 0xE6FF range.
+ *
+ *   Registers which require a synchronization delay:
+ *
+ *	FIFORESET			FIFOPINPOLAR
+ *	INPKTEND			EPxBCH:L
+ *	EPxFIFOPFH:L			EPxAUTOINLENH:L
+ *	EPxFIFOCFG			EPxGPIFFLGSEL
+ *	PINFLAGSAB			PINFLAGSCD
+ *	EPxFIFOIE			EPxFIFOIRQ
+ *	GPIFIE				GPIFIRQ
+ *	UDMACRCH:L			GPIFADRH:L
+ *	GPIFTRIG			EPxGPIFTRIG
+ *	OUTPKTEND			REVCTL
+ *	GPIFTCB3			GPIFTCB2
+ *	GPIFTCB1			GPIFTCB0
+ */
+
+#define	TRUE		1
+#define	FALSE		0
+
+
+void init_usrp (void);
+void init_gpif (void);
+
+void set_led_0 (unsigned char on);
+void set_led_1 (unsigned char on);
+void toggle_led_0 (void);
+void toggle_led_1 (void);
+
+#define la_trace(v)
+
+#endif /* _USRPCOMMON_H_ */