diff options
Diffstat (limited to 'cores/arduino/WInterrupts.c')
| -rw-r--r--[-rwxr-xr-x] | cores/arduino/WInterrupts.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/cores/arduino/WInterrupts.c b/cores/arduino/WInterrupts.c index 1449cfb..8f3ec84 100755..100644 --- a/cores/arduino/WInterrupts.c +++ b/cores/arduino/WInterrupts.c @@ -32,7 +32,7 @@ #include "wiring_private.h" -volatile static voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS]; +static volatile voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS]; // volatile static voidFuncPtr twiIntFunc; void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { @@ -47,7 +47,19 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { // Enable the interrupt. switch (interruptNum) { -#if defined(EICRA) && defined(EICRB) && defined(EIMSK) +#if defined(__AVR_ATmega32U4__) + // I hate doing this, but the register assignment differs between the 1280/2560 + // and the 32U4. Since avrlib defines registers PCMSK1 and PCMSK2 that aren't + // even present on the 32U4 this is the only way to distinguish between them. + case 0: + EICRA = (EICRA & ~((1<<ISC00) | (1<<ISC01))) | (mode << ISC00); + EIMSK |= (1<<INT0); + break; + case 1: + EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10); + EIMSK |= (1<<INT1); + break; +#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) case 2: EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00); EIMSK |= (1 << INT0); @@ -80,7 +92,7 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { EICRB = (EICRB & ~((1 << ISC70) | (1 << ISC71))) | (mode << ISC70); EIMSK |= (1 << INT7); break; -#else +#else case 0: #if defined(EICRA) && defined(ISC00) && defined(EIMSK) EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00); @@ -121,8 +133,6 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { #elif defined(MCUCR) && defined(ISC20) && defined(GIMSK) && defined(GIMSK) MCUCR = (MCUCR & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20); GIMSK |= (1 << INT2); - #else - #warning attachInterrupt may need some more work for this cpu (case 1) #endif break; #endif @@ -136,7 +146,14 @@ void detachInterrupt(uint8_t interruptNum) { // to the number of the EIMSK bit to clear, as this isn't true on the // ATmega8. There, INT0 is 6 and INT1 is 7.) switch (interruptNum) { -#if defined(EICRA) && defined(EICRB) && defined(EIMSK) +#if defined(__AVR_ATmega32U4__) + case 0: + EIMSK &= ~(1<<INT0); + break; + case 1: + EIMSK &= ~(1<<INT1); + break; +#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) case 2: EIMSK &= ~(1 << INT0); break; @@ -198,7 +215,18 @@ void attachInterruptTwi(void (*userFunc)(void) ) { } */ -#if defined(EICRA) && defined(EICRB) +#if defined(__AVR_ATmega32U4__) +SIGNAL(INT0_vect) { + if(intFunc[EXTERNAL_INT_0]) + intFunc[EXTERNAL_INT_0](); +} + +SIGNAL(INT1_vect) { + if(intFunc[EXTERNAL_INT_1]) + intFunc[EXTERNAL_INT_1](); +} + +#elif defined(EICRA) && defined(EICRB) SIGNAL(INT0_vect) { if(intFunc[EXTERNAL_INT_2]) |