mirror of
https://github.com/arduino/Arduino.git
synced 2025-01-18 07:52:14 +01:00
Modifying Tone.cpp to use register-based (not CPU-based) #ifdefs.
This commit is contained in:
David A. Mellis
parent
5e028ea09d
commit
9b42d2dc03
@ -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;
|
||||
@ -145,6 +152,7 @@ static int8_t toneBegin(uint8_t _pin)
|
||||
break;
|
||||
#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;
|
||||
#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;
|
||||
@ -258,13 +282,23 @@ 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
|
||||
{
|
||||
// two choices for the 16 bit timers: ck/1 or ck/64
|
||||
@ -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:
|
||||
#if defined(TIMSK0)
|
||||
TIMSK0 = 0;
|
||||
break;
|
||||
#elif defined(TIMSK)
|
||||
TIMSK = 0; // atmega32
|
||||
#endif
|
||||
break;
|
||||
|
||||
#if defined(TIMSK1) && defined(OCIE1A)
|
||||
case 1:
|
||||
bitWrite(TIMSK1, OCIE1A, 0);
|
||||
break;
|
||||
#endif
|
||||
|
||||
case 2:
|
||||
#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;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user