void targetSpiInit(void)
{
spiGetSlaveDevice(&cpldSSId);
spiGetSlaveDevice(&codecSSId);
spiConfigure(codecSSId, SPI_SET_SS_ROUTINE, spi_slave_select);
spiConfigure(codecSSId, SPI_COMPLETE_CB, spi_slave_complete_sb);
spiConfigure(codecSSId, SPI_RATE, (void *)SPI_SPEED);
spiConfigure(codecSSId, SPI_WSIZE, (void *)SPI_WSIZE_16);
spiConfigure(cpldSSId, SPI_COMPLETE_CB, spi_slave_complete_sb);
spiConfigure(cpldSSId, SPI_RATE, (void *)SPI_SPEED);
spiConfigure(cpldSSId, SPI_WSIZE, (void *)SPI_WSIZE_16);
TCSemaphoreOpen (&codecSem,0);
TCSemaphoreOpen (&cpldSem,0);
//at init time, let's talk to CPLD and initialize
//read the CPLD version
spiOpBlockNoTask(cpldSSId, CPLD_SPI_RD_CMD(CPLD_VER_REG,0), &cpldVer);
if (cpldVer>=255) cpldVer = 0;
cpldSupported = ((cpldVer >= 12) && (cpldVer < 128));
if (cpldSupported)
{
if (isChipDiceJR())
spiOpBlockNoTask(cpldSSId, CPLD_SPI_WR_CMD(CPLD_CTRL_REG,CPLD_CTRL_PAR_EN |
CPLD_CTRL_CODEC_EN |
CPLD_CTRL_SPI1_EN |
CPLD_CTRL_SPI2_EN |
CPLD_CTRL_USER_EN), NULL);
else
spiOpBlockNoTask(cpldSSId, CPLD_SPI_WR_CMD(CPLD_CTRL_REG,CPLD_CTRL_CODEC_EN |
CPLD_CTRL_SPI1_EN |
CPLD_CTRL_SPI2_EN |
CPLD_CTRL_USER_EN), NULL);
//read the switches
spiOpBlockNoTask(cpldSSId, CPLD_SPI_RD_CMD(CPLD_SW_REG,0), &initialSwitchSetting);
}
else
initialSwitchSetting = 0x0; //mode 0, not Meter mode
}
void targetSpiInit(void)
{
//Initialize the DICE II SPI module to use the following GPIO
//MOSI = GPIO11
//MISO = GPIO12
//CLK = GPIO8
spiInitialize(11, 12, 8);
//Create the two slave devices
spiGetSlaveDevice(&cpldSSId);
spiGetSlaveDevice(&codecSSId);
//Configure each of the devices and the slave select call back.
spiConfigure(0, SPI_SET_SS_ROUTINE, spi_slave_select);
spiConfigure(codecSSId, SPI_RATE, (void *)SPI_SPEED);
spiConfigure(codecSSId, SPI_WSIZE, (void *)SPI_WSIZE_16);
spiConfigure(cpldSSId, SPI_RATE, (void *)SPI_SPEED);
spiConfigure(cpldSSId, SPI_WSIZE, (void *)SPI_WSIZE_16);
//at init time, let's talk to CPLD and initialize
//read the CPLD version
spiOpBlock(cpldSSId, CPLD_SPI_RD_CMD(CPLD_VER_REG,0), &cpldVer);
if (cpldVer>=255) cpldVer = 0;
cpldSupported = ((cpldVer >= 12) && (cpldVer < 128));
if (cpldSupported)
{
//Enable parallel mode and passthrough of SPI to both Codecs
spiOpBlock(cpldSSId, CPLD_SPI_WR_CMD(CPLD_CTRL_REG, CPLD_CTRL_PAR_EN |
CPLD_CTRL_CODEC_EN |
CPLD_CTRL_SPI1_EN |
CPLD_CTRL_SPI2_EN |
CPLD_CTRL_USER_EN), NULL);
//read the initial switches
spiOpBlock(cpldSSId, CPLD_SPI_RD_CMD(CPLD_SW_REG,0), &initialSwitchSetting);
}
else
initialSwitchSetting = 0x1; //Flash mode
}
extern uint8 targetGetSw (void)
{
if (!cpldSupported) return initialSwitchSetting;
if (isChipDiceJR())
{
return pTargetCpld[CPLD_SW_REG] & 0x0f;
}
else
{
return (uint8)targetReadCPLDSPIWord (CPLD_SPI_RD_CMD(CPLD_SW_REG,0)) & 0x0f;
}
}
