30c3382a48
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23817 a1c6a512-1295-4272-9138-f99709370657
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 by Catalin Patulea
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* Copyright (C) 2009 by Karl Kurbjun
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdio.h>
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#include "arm.h"
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#include "registers.h"
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#include "ipc.h"
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#include "dma.h"
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volatile struct ipc_message status;
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#if defined(HAVE_DEBUG)
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static int acked;
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#endif
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interrupt void handle_int0(void) {
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IFR = 1;
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#if defined(HAVE_DEBUG)
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acked = 1;
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#endif
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waiting = 0;
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if(dma0_stopped==0)
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{
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if(!(DMPREC&0x01))
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{
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/* Give the HPIB access to refill first */
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rebuffer();
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/* Start the MCBSP DMA */
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DMPREC |= 1;
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audiohw_start();
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}
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else
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{
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rebuffer();
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}
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}
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else
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{
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rebuffer();
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}
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}
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#if defined(HAVE_DEBUG)
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static void startack(void)
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{
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acked = 0;
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int_arm();
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}
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static void waitack(void)
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{
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/* Wait until ARM has picked up data. */
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while (!acked)
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{
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/* IDLE alone never seems to wake up :( */
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asm(" IDLE 1");
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asm(" NOP");
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}
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}
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void debugf(const char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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status.msg = MSG_DEBUGF;
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vsnprintf((char *)status.payload.debugf.buffer, sizeof(status), fmt, args);
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va_end(args);
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startack();
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waitack();
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acked = 2;
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}
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#endif
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