/*******************************************************************************
* 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);
}
/*******************************************************************************
* mvRtcCharWrite - Write a char from the RTC.
*
* DESCRIPTION:
* This function writes a char to the RTC offset.
*
* INPUT:
* offset - offset
*
* OUTPUT:
* data - char write to addr address.
*
* RETURN:
* None.
*
*******************************************************************************/
static MV_VOID mvRtcCharWrite(MV_U32 offset, MV_U8 data)
{
MV_TWSI_SLAVE twsiSlave;
twsiSlave.slaveAddr.type = mvBoardRtcTwsiAddrTypeGet();
twsiSlave.slaveAddr.address = mvBoardRtcTwsiAddrGet();
twsiSlave.validOffset = MV_TRUE;
twsiSlave.offset = offset;
twsiSlave.moreThen256 = MV_FALSE;
mvTwsiWrite (MV_BOARD_RTC_I2C_CHANNEL, &twsiSlave, &data, 1);
return;
}
int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len)
{
MV_TWSI_SLAVE twsiSlave;
DP(puts("i2c_write\n"));
twsiSlave.slaveAddr.type = ADDR7_BIT;
twsiSlave.slaveAddr.address = chip;
if(alen != 0){
twsiSlave.validOffset = MV_TRUE;
twsiSlave.offset = addr;
if(alen == 2)
{
twsiSlave.moreThen256 = MV_TRUE;
}
else
{
twsiSlave.moreThen256 = MV_FALSE;
}
}
i2c_init(CONFIG_SYS_I2C_SPEED,0); /* set the i2c frequency */
return mvTwsiWrite (i2c_current_bus, &twsiSlave, buffer, len);
}
