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#include "gpio.h"
#define EXTERNAL_NUM_INTERRUPTS 22
volatile static USER_GPIO_FUNC intFunc[EXTERNAL_NUM_INTERRUPTS];
void attachInterrupt(int pin, USER_GPIO_FUNC func, digitalWriteState mode) {
pinMode(pin, INPUT);
switch (mode) {
case LOW:
GPIOSetInterrupt(pin, 1, 0, 0);
break;
case HIGH:
GPIOSetInterrupt(pin, 1, 0, 1);
break;
case CHANGE:
GPIOSetInterrupt(pin, 0, 1, 0);
break;
case RISING:
GPIOSetInterrupt(pin, 0, 0, 1);
break;
case FALLING:
GPIOSetInterrupt(pin, 0, 0, 0);
break;
default:
break;
}
if (pin >= 0 && pin < 22) //arduinoPinAssign(0~22)
{
intFunc[pin] = func;
switch (arduino_pinAssign[pin * 2]) {
case 0:
NVIC_EnableIRQ(EINT0_IRQn);
break;
case 1:
NVIC_EnableIRQ(EINT1_IRQn);
break;
case 2:
NVIC_EnableIRQ(EINT2_IRQn);
break;
case 3:
NVIC_EnableIRQ(EINT3_IRQn);
break;
}
} else if (pin >= 22 && pin < 100) {
//(22~99:reserved)
} else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?)
{
int _pin = pin - 100;
intFunc[_pin] = func;
switch (mary_pinAssign[_pin * 2]) {
case 0:
NVIC_EnableIRQ(EINT0_IRQn);
break;
case 1:
NVIC_EnableIRQ(EINT1_IRQn);
break;
case 2:
NVIC_EnableIRQ(EINT2_IRQn);
break;
case 3:
NVIC_EnableIRQ(EINT3_IRQn);
break;
}
}
GPIOIntEnable(pin);
return;
}
void detachInterrupt(int pin) {
GPIOIntDisable(pin);
if (pin >= 0 && pin < 22) //arduinoPinAssign(0~22)
{
intFunc[pin] = 0;
if (LPC_GPIO[arduino_pinAssign[pin * 2]]->IE == 0) {
switch (arduino_pinAssign[pin * 2]) {
case 0:
NVIC_DisableIRQ(EINT0_IRQn);
break;
case 1:
NVIC_DisableIRQ(EINT1_IRQn);
break;
case 2:
NVIC_DisableIRQ(EINT2_IRQn);
break;
case 3:
NVIC_DisableIRQ(EINT3_IRQn);
break;
}
}
}
else if (pin >= 22 && pin < 100) {//(22~99:reserved)
} else if (pin >= 100 && pin < 200) //maryPinAssign(100~119?)
{
pin = pin - 100;
intFunc[pin] = 0;
if (LPC_GPIO[mary_pinAssign[pin * 2]]->IE == 0) {
switch (mary_pinAssign[pin * 2]) {
case 0:
NVIC_DisableIRQ(EINT0_IRQn);
break;
case 1:
NVIC_DisableIRQ(EINT1_IRQn);
break;
case 2:
NVIC_DisableIRQ(EINT2_IRQn);
break;
case 3:
NVIC_DisableIRQ(EINT3_IRQn);
break;
}
}
}
return;
}
void GPIO_IRQHandler(void) {
for (int i = 0; i < EXTERNAL_NUM_INTERRUPTS; i++) {
if (GPIOIntStatus(i)) {
GPIOIntClear(i);
if (intFunc[i])
intFunc[i]();
}
}
}
void PIOINT0_IRQHandler(void) {
GPIO_IRQHandler();
return;
}
void PIOINT1_IRQHandler(void) {
GPIO_IRQHandler();
return;
}
void PIOINT2_IRQHandler(void) {
GPIO_IRQHandler();
return;
}
void PIOINT3_IRQHandler(void) {
GPIO_IRQHandler();
return;
}
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