From c473cc56fafcb47d6ba1f16e8c9fb89ff6c57bca Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Fri, 5 Nov 2010 12:32:09 -0700 Subject: usrp1: pulled in cmake build system for usrp1 firmware --- firmware/fx2/common/fx2utils.c | 54 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 firmware/fx2/common/fx2utils.c (limited to 'firmware/fx2/common/fx2utils.c') 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 +} -- cgit v1.2.3