Ejemplos de msm_pcm_playback_copy en C++ (Cpp)

Ejemplo n.º 1

Archivo: sky-direct-adsp.c Proyecto: CertainlyT/Time_Kernel-stock-VEGA-LTE-A-

static ssize_t sky_direct_adsp_write(struct file *filp, const char __user *buffer, size_t length, loff_t *offset)
{
    int ret = 0;
#ifdef FEATURE_RV_VEGA_VOLTE_TICK_NOISE
	int nMax = 0;
    int index = 0;
	short* tmpVal = (short *)buffer;
#endif//FEATURE_RV_VEGA_VOLTE_TICK_NOISE
	
    if(!bUseSKYDirectADSP)
        return -1;
    
    if(voip_info.state != VOIP_STARTED)
        return -2;

    if(voip_info.playback_start != 1)
        return -3;

    if(voip_info.mode == MODE_PCM)
    {
#ifdef FEATURE_RV_VEGA_VOLTE_TICK_NOISE
		for(index = 0; index < length/2; index++) 
		{
			nMax = (((nMax) > (tmpVal[index])) ? (nMax) : (tmpVal[index]));
			if (nMax > 256) break;
		}
        ret = msm_pcm_playback_copy(voip_info.playback_substream, ((nMax < 256) ? (-1):(0)), 0, (void __user *)buffer, length/2);
#else //FEATURE_RV_VEGA_VOLTE_TICK_NOISE
        ret = msm_pcm_playback_copy(voip_info.playback_substream, 0, 0, (void __user *)buffer, length/2);
#endif//FEATURE_RV_VEGA_VOLTE_TICK_NOISE
    }
    else if(voip_info.mode == MODE_AMR_WB)
    {
        ret = msm_pcm_playback_copy(voip_info.playback_substream, 0, 0, (void __user *)buffer, length);    
    }
    else if(voip_info.mode == MODE_AMR)
    {
        ret = msm_pcm_playback_copy(voip_info.playback_substream, 0, 0, (void __user *)buffer, length);    
    }
    else
        return -4;
    
    if(ret != 0)
        return -5;

    return length;
}

Ejemplo n.º 2

Archivo: msm7k-pcm.c Proyecto: mtuton/linux_u82x0

static int msm_pcm_copy(struct snd_pcm_substream *substream, int a,
	 snd_pcm_uframes_t hwoff, void __user *buf, snd_pcm_uframes_t frames)
{
	int ret = 0;

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		ret = msm_pcm_playback_copy(substream, a, hwoff, buf, frames);
	else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
		ret = msm_pcm_capture_copy(substream, a, hwoff, buf, frames);
	return ret;
}