static void Llc_VolumeSet(uint8_t volume)
{
uint8_t buffer[2];
if(volume > (uint8_t)100)
{
volume = 100; /* Limit volume to 100% */
}
/* Scale down the volume value to 0 - 31 range */
volume = (volume * 31) / 100;
buffer[0] = mVREG_CMD_c;
buffer[1] = (volume & 0xFF) << 3;
I2c_SendData(mSLAVE_DEV_ADDRESS_c, &buffer[0], 2, gI2cMstrReleaseBus_c);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// Name I2C_WriteMem
// Author Nivis LLC, Dorin Muica
// Brief write data to EEPROM memory
// Param p_pcAddrAndData - is formated as Addr HI byte, Addr LO byte, Data bytes
// p_nAddrAndDataLen - length of p_pcAddrAndData 2bytes+Effective Data bytes
// Return 0 if fail, !=0 if success
// Remarks p_pcAddrAndData is formated as Addr HI, Addr LO, Data
////////////////////////////////////////////////////////////////////////////////////////////////////
uint8 I2C_WriteMem(uint8 *p_pcAddrAndData, uint16 p_nAddrAndDataLen ) // NOT TESTED
{
if(p_nAddrAndDataLen > 2)
{
uint16 ulAddress;
uint16 unCnt;
ulAddress = ((uint16)(p_pcAddrAndData[0]) << 8) | p_pcAddrAndData[1];
p_nAddrAndDataLen -= 2;
EEPROM_WRITE_ENABLE();
do
{
uint8 acMem[2];
uint16 unWriteSize = EEPROM_PAGE_SIZE - (ulAddress & (EEPROM_PAGE_SIZE-1));
if( unWriteSize > p_nAddrAndDataLen )
{
unWriteSize = p_nAddrAndDataLen;
}
acMem[0] = p_pcAddrAndData[0]; // save previous data
acMem[1] = p_pcAddrAndData[1];
p_pcAddrAndData[0] = (uint8)(ulAddress >> 8);
p_pcAddrAndData[1] = (uint8)(ulAddress);
unCnt = FAILURE_RETRIES ;
do
{
if( I2c_SendData(CONTROL_BYTE_WRITE, p_pcAddrAndData, unWriteSize+2, gI2cMstrReleaseBus_c ) == gI2cErrNoError_c )
{
p_nAddrAndDataLen -= unWriteSize;
break;
}
}while(--unCnt);
p_pcAddrAndData[0] = acMem[0]; //restore previous data
p_pcAddrAndData[1] = acMem[1];
p_pcAddrAndData += unWriteSize;
ulAddress += unWriteSize;
}while( p_nAddrAndDataLen && unCnt );
while (I2CSR_MBB) // wait until bus is idle
;
EEPROM_WRITE_DISABLE();
}
