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authorJosh Blum <josh@joshknows.com>2010-11-05 13:53:39 -0700
committerJosh Blum <josh@joshknows.com>2010-11-05 13:53:39 -0700
commit3ac3457184bc3b251ce7398eee56c931983abe65 (patch)
tree7cfa1ba616788ad083236272a323c3a6e2964da3 /firmware/fx2/common/fx2utils.c
parent144ebf29327981db8422049b451852744619678d (diff)
parentc473cc56fafcb47d6ba1f16e8c9fb89ff6c57bca (diff)
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Merge branch 'good_stuff' into mb_eeprom
Conflicts: firmware/fx2/include
Diffstat (limited to 'firmware/fx2/common/fx2utils.c')
-rw-r--r--firmware/fx2/common/fx2utils.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/firmware/fx2/common/fx2utils.c b/firmware/fx2/common/fx2utils.c
new file mode 100644
index 000000000..64ffcc896
--- /dev/null
+++ b/firmware/fx2/common/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
+}