/**
* \brief init feeder
* \param audec pointer to audec
* \return 0 on success otherwise -1 if an error occurred
*/
int feeder_init(aml_audio_dec_t *audec)
{
int ret;
dsp_operations_t *dsp_ops;
dsp_ops = &audec->adsp_ops;
audec->format = get_audio_format();
if (audec->format == ADEC_AUDIO_FORMAT_UNKNOWN) {
adec_print("Unknown audio format!");
return -1;
}
ret = audiodsp_init(dsp_ops);
if (ret) {
adec_print("audio dsp init failed!");
return -1;
}
ret = audiodsp_start(audec);
if (ret == 0) {
dsp_ops->dsp_on = 1;
dsp_ops->dsp_read = audiodsp_stream_read;
dsp_ops->get_cur_pts = audiodsp_get_pts;
dsp_ops->get_cur_pcrscr = audiodsp_get_pcrscr;
dsp_ops->set_cur_apts = audiodsp_set_apts;
} else {
audiodsp_release(dsp_ops);
dsp_ops->dsp_on = 0;
dsp_ops->dsp_read = NULL;
dsp_ops->get_cur_pts = NULL;
dsp_ops->get_cur_pcrscr = NULL;
/* TODO: amport init */
}
return ret;
}
static int audiodsp_ioctl(struct inode *node, struct file *file, unsigned int cmd,
unsigned long args)
{
struct audiodsp_priv *priv=audiodsp_privdata();
struct audiodsp_cmd *a_cmd;
char name[64];
int len;
unsigned long pts;
int ret=0;
unsigned long *val=(unsigned long *)args;
#ifdef ENABLE_WAIT_FORMAT
static int wait_format_times=0;
#endif
switch(cmd)
{
case AUDIODSP_SET_FMT:
priv->stream_fmt=args;
if(args == MCODEC_FMT_DTS)
IEC958_mode_codec = 1;
else if(args == MCODEC_FMT_AC3)
IEC958_mode_codec = 2;
else
IEC958_mode_codec = 0;
break;
case AUDIODSP_START:
if(IEC958_mode_raw_last != IEC958_mode_raw || IEC958_mode_codec_last != IEC958_mode_codec)
{
IEC958_mode_raw_last = IEC958_mode_raw;
IEC958_mode_codec_last = IEC958_mode_codec;
aml_alsa_hw_reprepare();
}
priv->decoded_nb_frames = 0;
priv->format_wait_count = 0;
if(priv->stream_fmt<=0)
{
DSP_PRNT("Audio dsp steam format have not set!\n");
}
else
{
ret=audiodsp_start();
}
break;
case AUDIODSP_STOP:
//DSP_PRNT("audiodsp command stop\n");
stop_audiodsp_monitor(priv);
dsp_stop(priv);
priv->decoded_nb_frames = 0;
priv->format_wait_count = 0;
break;
#ifdef ENABLE_WAIT_FORMAT
case AUDIODSP_DECODE_START:
if(priv->dsp_is_started)
{
dsp_codec_start(priv);
wait_format_times=0;
}
else
{
DSP_PRNT("Audio dsp have not started\n");
}
break;
case AUDIODSP_WAIT_FORMAT:
if(priv->dsp_is_started)
{
struct audio_info *audio_format;
int ch = 0;
audio_format = get_audio_info();
wait_format_times++;
if(wait_format_times>100){
int audio_info = DSP_RD(DSP_AUDIO_FORMAT_INFO);
if(audio_info){
priv->frame_format.channel_num = audio_info&0xf;
if(priv->frame_format.channel_num)
priv->frame_format.valid |= CHANNEL_VALID;
priv->frame_format.data_width= (audio_info>>4)&0x3f;
if(priv->frame_format.data_width)
priv->frame_format.valid |= DATA_WIDTH_VALID;
priv->frame_format.sample_rate = (audio_info>>10);
if(priv->frame_format.sample_rate)
priv->frame_format.valid |= SAMPLE_RATE_VALID;
DSP_PRNT("warning::got info from mailbox failed,read from regiser\n");
ret = 0;
}else{
DSP_PRNT("dsp have not set the codec stream's format details,valid=%x\n",
priv->frame_format.valid);
priv->format_wait_count++;
if(priv->format_wait_count > 5){
if(audio_format->channels&&audio_format->sample_rate){
priv->frame_format.channel_num = audio_format->channels>2?2:audio_format->channels;
priv->frame_format.sample_rate = audio_format->sample_rate;
priv->frame_format.data_width = 16;
priv->frame_format.valid = CHANNEL_VALID|DATA_WIDTH_VALID|SAMPLE_RATE_VALID;
DSP_PRNT("we have not got format details from dsp,so use the info got from the header parsed instead\n");
ret = 0;
}else{
ret = -1;
}
}else{
ret=-1;
}
}
}else if(priv->frame_format.valid == (CHANNEL_VALID|DATA_WIDTH_VALID|SAMPLE_RATE_VALID)){