firmware/target/arm/tms320dm320/creative-zvm/pcm-creativezvm.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 by Karl Kurbjun
 *
 * 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 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "system.h"
#include "kernel.h"
#include "logf.h"
#include "audio.h"
#include "sound.h"
#include "file.h"
#include "dm320.h"
#include "audiohw.h"
#include "dsp-target.h"

void pcm_play_dma_init(void)
{
    IO_CLK_O1DIV = 3;
    /* Set GIO25 to CLKOUT1A */
    IO_GIO_FSEL2 |= 3;
    sleep(5);

    audiohw_init();

    audiohw_set_frequency(1);
    
    /* init DSP */
    dsp_init();
}

void pcm_postinit(void)
{
    audiohw_postinit();
    /* wake DSP */
    dsp_wake();
}

/* set frequency used by the audio hardware */
void pcm_set_frequency(unsigned int frequency)
{
    int index;

    switch(frequency)
    {
        case SAMPR_11:
        case SAMPR_22:
            index = 0;
            break;
        default:
        case SAMPR_44:
            index = 1;
            break;
        case SAMPR_88:
            index = 2;
            break;
    }
    
    audiohw_set_frequency(index);
} /* pcm_set_frequency */

const void * pcm_play_dma_get_peak_buffer(int *count)
{
    (void) count;
    return 0;
}

void pcm_apply_settings(void)
{

}

void pcm_play_dma_start(const void *addr, size_t size)
{
    (void)addr;
    (void)size;
    DEBUGF("pcm_play_dma_start(0x%x, %d)", addr, size);
}

void pcm_play_dma_stop(void)
{

}

void pcm_play_lock(void)
{

}

void pcm_play_unlock(void)
{

}

void pcm_play_dma_pause(bool pause)
{
    (void) pause;
}

size_t pcm_get_bytes_waiting(void)
{
    return 0;
}