From 70eae1d242a9530cab4efa927bd1331b099fdd00 Mon Sep 17 00:00:00 2001
From: Thomas Tsou <ttsou@vt.edu>
Date: Thu, 5 Aug 2010 11:48:41 -0700
Subject: usrp1: Add FX2 firmware files

These firmware files for the usrp1 are imported from
GNURadio.
---
 firmware/fx2/lib/fx2utils.c | 54 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 firmware/fx2/lib/fx2utils.c

(limited to 'firmware/fx2/lib/fx2utils.c')

diff --git a/firmware/fx2/lib/fx2utils.c b/firmware/fx2/lib/fx2utils.c
new file mode 100644
index 000000000..64ffcc896
--- /dev/null
+++ b/firmware/fx2/lib/fx2utils.c
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003 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.
+ */
+
+#include "fx2utils.h"
+#include "fx2regs.h"
+#include "delay.h"
+
+void
+fx2_stall_ep0 (void)
+{
+  EP0CS |= bmEPSTALL;
+}
+
+void
+fx2_reset_data_toggle (unsigned char ep)
+{
+  TOGCTL = ((ep & 0x80) >> 3 | (ep & 0x0f));
+  TOGCTL |= bmRESETTOGGLE;
+}
+
+void
+fx2_renumerate (void)
+{
+  USBCS |= bmDISCON | bmRENUM;
+
+  // mdelay (1500);		// FIXME why 1.5 seconds?
+  mdelay (250);			// FIXME why 1.5 seconds?
+  
+  USBIRQ = 0xff;		// clear any pending USB irqs...
+  EPIRQ =  0xff;		//   they're from before the renumeration
+
+  EXIF &= ~bmEXIF_USBINT;
+
+  USBCS &= ~bmDISCON;		// reconnect USB
+}
-- 
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