/*----------------------------------------------------------------------------*/
void pinSetPull(struct Pin pin, enum PinPull pull)
{
volatile uint32_t * const reg = calcPinMode(pin.data);
uint32_t value = *reg & ~PIN_OFFSET(PIN_MASK, pin.data.offset);
switch (pull)
{
case PIN_NOPULL:
value |= PIN_OFFSET(PIN_MODE_INACTIVE, pin.data.offset);
break;
case PIN_PULLUP:
value |= PIN_OFFSET(PIN_MODE_PULLUP, pin.data.offset);
break;
case PIN_PULLDOWN:
value |= PIN_OFFSET(PIN_MODE_PULLDOWN, pin.data.offset);
break;
}
*reg = value;
}
/*----------------------------------------------------------------------------*/
void pinSetFunction(struct Pin pin, uint8_t function)
{
/* Function should not be used outside platform drivers */
switch (function)
{
case PIN_DEFAULT:
function = 0; /* Zero function is the default for all pins */
break;
case PIN_ANALOG:
return;
}
volatile uint32_t * const reg = calcPinSelect(pin.data);
uint32_t value = *reg & ~PIN_OFFSET(PIN_MASK, pin.data.offset);
value |= PIN_OFFSET(function, pin.data.offset);
*reg = value;
}
int
gpio_read(int const pin_nr) {
assert(gpio != NULL);
return GPLEV[PIN_OFFSET(pin_nr)] & PIN_VAL(pin_nr);
}