int audsrv_set_volume(int volume)
{
if (volume > MAX_VOLUME)
{
volume = MAX_VOLUME;
}
else if (volume < MIN_VOLUME)
{
volume = MIN_VOLUME;
}
return call_rpc_1(AUDSRV_SET_VOLUME, vol_values[volume/4]);
}
int audsrv_on_fillbuf(int amount, audsrv_callback_t cb, void *arg)
{
int err;
on_fillbuf = 0;
on_fillbuf_arg = 0;
err = call_rpc_1(AUDSRV_SET_THRESHOLD, amount);
if (err != 0)
{
return err;
}
on_fillbuf = cb;
on_fillbuf_arg = arg;
return AUDSRV_ERR_NOERROR;
}
/** Sets output volume
@param vol volume in percentage
@returns error code
*/
int audsrv_set_volume(int volume)
{
unsigned short vol_values[26] =
{
0x0000,
0x0000, 0x0096, 0x0190, 0x0230, 0x0320,
0x042E, 0x0532, 0x05FA, 0x06C2, 0x088E,
0x09F6, 0x0BC2, 0x0DC0, 0x0FF0, 0x118A,
0x1482, 0x1752, 0x1B4E, 0x1F40, 0x2378,
0x28D2, 0x2EFE, 0x34F8, 0x3A5C, 0x3FFF
};
if (volume > 100)
{
volume = 100;
}
else if (volume < 0)
{
volume = 0;
}
return call_rpc_1(AUDSRV_SET_VOLUME, vol_values[volume/4]);
}
int audsrv_get_numtracks()
{
return call_rpc_1(AUDSRV_GET_NUMTRACKS, 0);
}
int audsrv_stop_audio()
{
int ret;
ret = call_rpc_1(AUDSRV_STOP_AUDIO, 0);
return ret;
}
int audsrv_adpcm_init()
{
return call_rpc_1(AUDSRV_INIT_ADPCM, 0);
}
int audsrv_get_cd_type()
{
return call_rpc_1(AUDSRV_GET_CD_TYPE, 0);
}
int audsrv_get_cd_status()
{
return call_rpc_1(AUDSRV_GET_CD_STATUS, 0);
}
int audsrv_pause_cd()
{
return call_rpc_1(AUDSRV_PAUSE_CD, 0);
}
int audsrv_resume_cd()
{
return call_rpc_1(AUDSRV_RESUME_CD, 0);
}
/** Plays an adpcm sample already uploaded with audsrv_load_adpcm()
@param adpcm exact same adpcm descriptor used in load()
@returns zero on success, negative value on error
The sample will be played in an unoccupied channel. If all 24 channels
are used, then -AUDSRV_ERR_NO_MORE_CHANNELS is returned. Trying to play
a sample which is unavailable will result in -AUDSRV_ERR_ARGS
*/
int audsrv_play_adpcm(audsrv_adpcm_t *adpcm)
{
/* on iop side, the sample id is like the pointer on ee side */
return call_rpc_1(AUDSRV_PLAY_ADPCM, (u32)adpcm);
}
int audsrv_get_track_offset(int track)
{
return call_rpc_1(AUDSRV_GET_TRACKOFFSET, track);
}
int audsrv_get_trackpos()
{
return call_rpc_1(AUDSRV_GET_TRACKPOS, 0);
}
int audsrv_get_cdpos()
{
return call_rpc_1(AUDSRV_GET_CDPOS, 0);
}
int audsrv_stop_cd()
{
int ret;
ret = call_rpc_1(AUDSRV_STOP_CD, 0);
return ret;
}
int audsrv_play_cd(int track)
{
return call_rpc_1(AUDSRV_PLAY_CD, track);
}
int audsrv_wait_audio(int bytes)
{
return call_rpc_1(AUDSRV_WAIT_AUDIO, bytes);
}
