diff options
Diffstat (limited to 'cores/arduino/Tone.cpp')
| -rwxr-xr-x | cores/arduino/Tone.cpp | 119 |
1 files changed, 99 insertions, 20 deletions
diff --git a/cores/arduino/Tone.cpp b/cores/arduino/Tone.cpp index 3ea034b..8bdc5f7 100755 --- a/cores/arduino/Tone.cpp +++ b/cores/arduino/Tone.cpp @@ -28,7 +28,7 @@ Version Modified By Date Comments 09/11/25 Changed pin toggle method to XOR 09/11/25 Fixed timer0 from being excluded 0006 D Mellis 09/12/29 Replaced objects with functions - +0007 M Sproul 10/08/29 Changed #ifdefs from cpu to register *************************************************/ #include <avr/interrupt.h> @@ -36,7 +36,7 @@ Version Modified By Date Comments #include "wiring.h" #include "pins_arduino.h" -#if defined(__AVR_ATmega8__) +#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__) #define TCCR2A TCCR2 #define TCCR2B TCCR2 #define COM2A1 COM21 @@ -66,19 +66,26 @@ volatile long timer2_toggle_count; volatile uint8_t *timer2_pin_port; volatile uint8_t timer2_pin_mask; -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +#if defined(TIMSK3) volatile long timer3_toggle_count; volatile uint8_t *timer3_pin_port; volatile uint8_t timer3_pin_mask; +#endif + +#if defined(TIMSK4) volatile long timer4_toggle_count; volatile uint8_t *timer4_pin_port; volatile uint8_t timer4_pin_mask; +#endif + +#if defined(TIMSK5) volatile long timer5_toggle_count; volatile uint8_t *timer5_pin_port; volatile uint8_t timer5_pin_mask; #endif +// MLS: This does not make sense, the 3 options are the same #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) #define AVAILABLE_TONE_PINS 1 @@ -133,7 +140,7 @@ static int8_t toneBegin(uint8_t _pin) // whereas 16 bit timers are set to either ck/1 or ck/64 prescalar switch (_timer) { -#if !defined(__AVR_ATmega8__) + #if defined(TCCR0A) && defined(TCCR0B) case 0: // 8 bit timer TCCR0A = 0; @@ -143,8 +150,9 @@ static int8_t toneBegin(uint8_t _pin) timer0_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer0_pin_mask = digitalPinToBitMask(_pin); break; -#endif + #endif + #if defined(TCCR1A) && defined(TCCR1B) && defined(WGM12) case 1: // 16 bit timer TCCR1A = 0; @@ -154,6 +162,9 @@ static int8_t toneBegin(uint8_t _pin) timer1_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer1_pin_mask = digitalPinToBitMask(_pin); break; + #endif + + #if defined(TCCR2A) && defined(TCCR2B) case 2: // 8 bit timer TCCR2A = 0; @@ -163,8 +174,9 @@ static int8_t toneBegin(uint8_t _pin) timer2_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer2_pin_mask = digitalPinToBitMask(_pin); break; + #endif -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) + #if defined(TCCR3A) && defined(TCCR3B) && defined(TIMSK3) case 3: // 16 bit timer TCCR3A = 0; @@ -174,15 +186,27 @@ static int8_t toneBegin(uint8_t _pin) timer3_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer3_pin_mask = digitalPinToBitMask(_pin); break; + #endif + + #if defined(TCCR4A) && defined(TCCR4B) && defined(TIMSK4) case 4: // 16 bit timer TCCR4A = 0; TCCR4B = 0; - bitWrite(TCCR4B, WGM42, 1); + #if defined(WGM42) + bitWrite(TCCR4B, WGM42, 1); + #elif defined(CS43) + #warning this may not be correct + // atmega32u4 + bitWrite(TCCR4B, CS43, 1); + #endif bitWrite(TCCR4B, CS40, 1); timer4_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer4_pin_mask = digitalPinToBitMask(_pin); break; + #endif + + #if defined(TCCR5A) && defined(TCCR5B) && defined(TIMSK5) case 5: // 16 bit timer TCCR5A = 0; @@ -192,7 +216,7 @@ static int8_t toneBegin(uint8_t _pin) timer5_pin_port = portOutputRegister(digitalPinToPort(_pin)); timer5_pin_mask = digitalPinToBitMask(_pin); break; -#endif + #endif } } @@ -258,12 +282,22 @@ void tone(uint8_t _pin, unsigned int frequency, unsigned long duration) } } -#if !defined(__AVR_ATmega8__) +#if defined(TCCR0B) if (_timer == 0) + { TCCR0B = prescalarbits; + } else #endif +#if defined(TCCR2B) + { TCCR2B = prescalarbits; + } +#else + { + // dummy place holder to make the above ifdefs work + } +#endif } else { @@ -278,12 +312,20 @@ void tone(uint8_t _pin, unsigned int frequency, unsigned long duration) } if (_timer == 1) + { +#if defined(TCCR1B) TCCR1B = (TCCR1B & 0b11111000) | prescalarbits; -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +#endif + } +#if defined(TCCR3B) else if (_timer == 3) TCCR3B = (TCCR3B & 0b11111000) | prescalarbits; +#endif +#if defined(TCCR4B) else if (_timer == 4) TCCR4B = (TCCR4B & 0b11111000) | prescalarbits; +#endif +#if defined(TCCR5B) else if (_timer == 5) TCCR5B = (TCCR5B & 0b11111000) | prescalarbits; #endif @@ -307,7 +349,7 @@ void tone(uint8_t _pin, unsigned int frequency, unsigned long duration) switch (_timer) { -#if !defined(__AVR_ATmega8__) +#if defined(OCR0A) && defined(TIMSK0) && defined(OCIE0A) case 0: OCR0A = ocr; timer0_toggle_count = toggle_count; @@ -316,27 +358,43 @@ void tone(uint8_t _pin, unsigned int frequency, unsigned long duration) #endif case 1: +#if defined(OCR1A) && defined(TIMSK1) && defined(OCIE1A) OCR1A = ocr; timer1_toggle_count = toggle_count; bitWrite(TIMSK1, OCIE1A, 1); +#elif defined(OCR1A) && defined(TIMSK) && defined(OCIE1A) + // this combination is for at least the ATmega32 + OCR1A = ocr; + timer1_toggle_count = toggle_count; + bitWrite(TIMSK, OCIE1A, 1); +#endif break; + +#if defined(OCR2A) && defined(TIMSK2) && defined(OCIE2A) case 2: OCR2A = ocr; timer2_toggle_count = toggle_count; bitWrite(TIMSK2, OCIE2A, 1); break; +#endif -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +#if defined(TIMSK3) case 3: OCR3A = ocr; timer3_toggle_count = toggle_count; bitWrite(TIMSK3, OCIE3A, 1); break; +#endif + +#if defined(TIMSK4) case 4: OCR4A = ocr; timer4_toggle_count = toggle_count; bitWrite(TIMSK4, OCIE4A, 1); break; +#endif + +#if defined(OCR5A) && defined(TIMSK5) && defined(OCIE5A) case 5: OCR5A = ocr; timer5_toggle_count = toggle_count; @@ -356,27 +414,48 @@ void disableTimer(uint8_t _timer) { switch (_timer) { -#if !defined(__AVR_ATmega8__) case 0: - TIMSK0 = 0; + #if defined(TIMSK0) + TIMSK0 = 0; + #elif defined(TIMSK) + TIMSK = 0; // atmega32 + #endif break; -#endif + +#if defined(TIMSK1) && defined(OCIE1A) case 1: bitWrite(TIMSK1, OCIE1A, 0); break; +#endif + case 2: - bitWrite(TIMSK2, OCIE2A, 0); // disable interrupt - TCCR2A = (1 << WGM20); - TCCR2B = (TCCR2B & 0b11111000) | (1 << CS22); - OCR2A = 0; + #if defined(TIMSK2) && defined(OCIE2A) + bitWrite(TIMSK2, OCIE2A, 0); // disable interrupt + #endif + #if defined(TCCR2A) && defined(WGM20) + TCCR2A = (1 << WGM20); + #endif + #if defined(TCCR2B) && defined(CS22) + TCCR2B = (TCCR2B & 0b11111000) | (1 << CS22); + #endif + #if defined(OCR2A) + OCR2A = 0; + #endif break; -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) + +#if defined(TIMSK3) case 3: TIMSK3 = 0; break; +#endif + +#if defined(TIMSK4) case 4: TIMSK4 = 0; break; +#endif + +#if defined(TIMSK5) case 5: TIMSK5 = 0; break; |