void HalI2CConfig(uint8_t newInterface, uint8_t address)
{
slaveAddr = address;
#ifdef TI_DRIVERS_I2C_INCLUDED
// TBD: will this concept work with power management and TI RTOS style drivers?
// should driver be torn down and reopened??
if (newInterface != interface)
{
interface = newInterface;
if (interface == BSP_I2C_INTERFACE_0)
{
IOCIOPortPullSet(BSP_IOD_SDA, IOC_NO_IOPULL);
IOCIOPortPullSet(BSP_IOD_SCL, IOC_NO_IOPULL);
IOCPinTypeI2c(I2C0_BASE, BSP_IOD_SDA, BSP_IOD_SCL);
IOCPinTypeGpioInput(BSP_IOD_SDA_HP);
IOCPinTypeGpioInput(BSP_IOD_SCL_HP);
}
else if (interface == BSP_I2C_INTERFACE_1)
{
IOCIOPortPullSet(BSP_IOD_SDA_HP, IOC_NO_IOPULL);
IOCIOPortPullSet(BSP_IOD_SCL_HP, IOC_NO_IOPULL);
IOCPinTypeI2c(I2C0_BASE, BSP_IOD_SDA_HP, BSP_IOD_SCL_HP);
IOCPinTypeGpioInput(BSP_IOD_SDA);
IOCPinTypeGpioInput(BSP_IOD_SCL);
}
}
#endif
}
void bspI2cSelect(uint8_t newInterface, uint8_t address)
{
/* Acquire I2C resource */
Semaphore_pend(Semaphore_handle(&mutex),BIOS_WAIT_FOREVER);
#ifdef POWER_SAVING
if (!checkI2cConstraint)
{
/* Prevent the system from entering standby while using I2C. */
Power_setConstraint(Power_SB_DISALLOW);
checkI2cConstraint = true;
}
#endif
slaveAddr = address;
if (newInterface != interface)
{
interface = newInterface;
I2C_close(I2Chandle);
if (interface == BSP_I2C_INTERFACE_0)
{
i2cCC26xxHWAttrs[CC2650_I2C0].sdaPin = Board_I2C0_SDA0;
i2cCC26xxHWAttrs[CC2650_I2C0].sclPin = Board_I2C0_SCL0;
// Secondary I2C as GPIO
IOCPinTypeGpioInput(Board_I2C0_SDA1);
IOCPinTypeGpioInput(Board_I2C0_SCL1);
IOCIOPortPullSet(Board_I2C0_SDA1, IOC_NO_IOPULL);
IOCIOPortPullSet(Board_I2C0_SCL1, IOC_NO_IOPULL);
}
else if (interface == BSP_I2C_INTERFACE_1)
{
i2cCC26xxHWAttrs[CC2650_I2C0].sdaPin = Board_I2C0_SDA1;
i2cCC26xxHWAttrs[CC2650_I2C0].sclPin = Board_I2C0_SCL1;
// Primary I2C as GPIO
IOCPinTypeGpioInput(Board_I2C0_SDA0);
IOCPinTypeGpioInput(Board_I2C0_SCL0);
IOCIOPortPullSet(Board_I2C0_SDA0, IOC_NO_IOPULL);
IOCIOPortPullSet(Board_I2C0_SCL0, IOC_NO_IOPULL);
}
I2Chandle = I2C_open(Board_I2C, &I2CParams);
}
}