/*
* Set the audio decoder volume for both channels.
* 0 is lowest volume, MVAUD_NUM_VOLUME_STEPS-1 is the highest volume.
*/
void
cs42l51_vol_set(MV_U8 *vol_list)
{
MV_AUDIO_CODEC_DEV codec_params;
MV_U32 vol_idx;
codec_params.ADCMode = MV_I2S_MODE;
codec_params.DACDigitalIFFormat = MV_I2S_UP_TO_24_BIT;
codec_params.twsiSlave.moreThen256 = MV_FALSE;
codec_params.twsiSlave.validOffset = MV_TRUE;
codec_params.twsiSlave.slaveAddr.address = mvBoardA2DTwsiAddrGet();
codec_params.twsiSlave.slaveAddr.type = mvBoardA2DTwsiAddrTypeGet();
for(vol_idx = 0; vol_idx < 2; vol_idx++)
{
/*printk("\tvol_list[%d] = %d.\n",vol_idx,
vol_list[vol_idx]);*/
if(vol_list[vol_idx] >= MVAUD_NUM_VOLUME_STEPS)
vol_list[vol_idx] = MVAUD_NUM_VOLUME_STEPS -1;
mvCLAudioCodecRegSet(&codec_params,0x16 + vol_idx,
auddec_volume_mapping[vol_list[vol_idx]]);
/*printk("\tVolume was set to 0x%x.\n",
auddec_volume_mapping[vol_list[vol_idx]]);*/
}
return;
}
/*******************************************************************************
* mvSysAudioCodecRegWrite
*
* DESCRIPTION:
* System interface for writing an Audio codec register.
*
* INPUT:
* codecHandle: Handle passed by OS glue by which an audio codec is
* identified.
* regOffset: Offset of codec register to be written.
* regData: Register data to write.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_OK on success,
* MV_ERROR otherwise.
*
*******************************************************************************/
MV_STATUS mvSysAudioCodecRegWrite(MV_VOID *codecHandle, MV_U32 regOffset, MV_U32 regData)
{
MV_TWSI_SLAVE slave;
slave.slaveAddr.address = mvBoardA2DTwsiAddrGet(0);
slave.slaveAddr.type = mvBoardA2DTwsiAddrTypeGet(0);
slave.validOffset = MV_TRUE;
slave.offset = regOffset;
slave.moreThen256 = MV_FALSE;
return mvTwsiWrite(mvBoardA2DTwsiChanNumGet(0), &slave, (MV_U8*)®Data, 1);
}
/*
* Initialize the audio decoder.
*/
int
cs42l51_init(void)
{
MV_AUDIO_CODEC_DEV codec_params;
unsigned char reg_data;
codec_params.ADCMode = MV_I2S_MODE;
codec_params.DACDigitalIFFormat = MV_I2S_UP_TO_24_BIT;
codec_params.twsiSlave.moreThen256 = MV_FALSE;
codec_params.twsiSlave.validOffset = MV_TRUE;
codec_params.twsiSlave.slaveAddr.address = mvBoardA2DTwsiAddrGet();
codec_params.twsiSlave.slaveAddr.type = mvBoardA2DTwsiAddrTypeGet();
if(mvCLAudioCodecInit(&codec_params) == MV_FALSE)
{
printk("Error - Cannot initialize audio decoder.at address =0x%x",
codec_params.twsiSlave.slaveAddr.address);
return -1;
}
/* Use the signal processor. */
mvCLAudioCodecRegSet(&codec_params,0x9,0x40);
/* Unmute PCM-A & PCM-B and set default */
mvCLAudioCodecRegSet(&codec_params,0x10,0x60);
mvCLAudioCodecRegSet(&codec_params,0x11,0x60);
/* default for AOUTx*/
mvCLAudioCodecRegSet(&codec_params,0x16,0x05);
mvCLAudioCodecRegSet(&codec_params,0x17,0x05);
/* swap channels */
mvCLAudioCodecRegSet(&codec_params,0x18,0xff);
if (0) {
int i;
for (i=1; i<= 0x21 ; i++) {
reg_data = mvCLAudioCodecRegGet(&codec_params,i);
printk("CLS reg=0x%02x val=0x%02x\n",i,reg_data);
}
}
return 0;
}
void
cs42l51_vol_get(MV_U8 *vol_list)
{
MV_AUDIO_CODEC_DEV codec_params;
MV_U8 reg_data;
MV_U32 i;
MV_U32 vol_idx;
codec_params.ADCMode = MV_I2S_MODE;
codec_params.DACDigitalIFFormat = MV_I2S_UP_TO_24_BIT;
codec_params.twsiSlave.moreThen256 = MV_FALSE;
codec_params.twsiSlave.validOffset = MV_TRUE;
codec_params.twsiSlave.slaveAddr.address = mvBoardA2DTwsiAddrGet();
codec_params.twsiSlave.slaveAddr.type = mvBoardA2DTwsiAddrTypeGet();
for(vol_idx = 0; vol_idx < 2; vol_idx++)
{
reg_data = mvCLAudioCodecRegGet(&codec_params,0x16 + vol_idx);
/*printk("\tVolume was get: 0x%x.\n",
reg_data);*/
/* Look for the index that mapps to this dB value. */
for(i = 0; i < MVAUD_NUM_VOLUME_STEPS; i++)
{
if (reg_data == auddec_volume_mapping[i])
break;
if (( auddec_volume_mapping[i] > auddec_volume_mapping[MVAUD_NUM_VOLUME_STEPS-1])
&& (reg_data > auddec_volume_mapping[i])
&& (reg_data < auddec_volume_mapping[i+1]))
break;
}
vol_list[vol_idx] = i;
/*printk("\tvol_list[%d] = %d.\n",vol_idx,
vol_list[vol_idx]);*/
}
return;
}
