From 563f69b870a7f71026c50605b531ed40d667b0a2 Mon Sep 17 00:00:00 2001 From: HampusM Date: Mon, 7 Mar 2022 13:48:57 +0100 Subject: rename arduino core dir to xinput --- cores/arduino/Tone.cpp | 619 ------------------------------------------------- 1 file changed, 619 deletions(-) delete mode 100644 cores/arduino/Tone.cpp (limited to 'cores/arduino/Tone.cpp') diff --git a/cores/arduino/Tone.cpp b/cores/arduino/Tone.cpp deleted file mode 100644 index 1bfb3e3..0000000 --- a/cores/arduino/Tone.cpp +++ /dev/null @@ -1,619 +0,0 @@ -/* Tone.cpp - - A Tone Generator Library - - Written by Brett Hagman - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -Version Modified By Date Comments -------- ----------- -------- -------- -0001 B Hagman 09/08/02 Initial coding -0002 B Hagman 09/08/18 Multiple pins -0003 B Hagman 09/08/18 Moved initialization from constructor to begin() -0004 B Hagman 09/09/26 Fixed problems with ATmega8 -0005 B Hagman 09/11/23 Scanned prescalars for best fit on 8 bit timers - 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 -0008 S Kanemoto 12/06/22 Fixed for Leonardo by @maris_HY -0009 J Reucker 15/04/10 Issue #292 Fixed problems with ATmega8 (thanks to Pete62) -0010 jipp 15/04/13 added additional define check #2923 -*************************************************/ - -#include -#include -#include "Arduino.h" -#include "pins_arduino.h" - -#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__) -#define TCCR2A TCCR2 -#define TCCR2B TCCR2 -#define COM2A1 COM21 -#define COM2A0 COM20 -#define OCR2A OCR2 -#define TIMSK2 TIMSK -#define OCIE2A OCIE2 -#define TIMER2_COMPA_vect TIMER2_COMP_vect -#define TIMSK1 TIMSK -#endif - -// timerx_toggle_count: -// > 0 - duration specified -// = 0 - stopped -// < 0 - infinitely (until stop() method called, or new play() called) - -#if !defined(__AVR_ATmega8__) -volatile long timer0_toggle_count; -volatile uint8_t *timer0_pin_port; -volatile uint8_t timer0_pin_mask; -#endif - -volatile long timer1_toggle_count; -volatile uint8_t *timer1_pin_port; -volatile uint8_t timer1_pin_mask; -volatile long timer2_toggle_count; -volatile uint8_t *timer2_pin_port; -volatile uint8_t timer2_pin_mask; - -#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 - - -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) - -#define AVAILABLE_TONE_PINS 1 -#define USE_TIMER2 - -const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 3, 4, 5, 1, 0 */ }; -static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255, 255, 255, 255 */ }; - -#elif defined(__AVR_ATmega8__) - -#define AVAILABLE_TONE_PINS 1 -#define USE_TIMER2 - -const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1 */ }; -static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ }; - -#elif defined(__AVR_ATmega32U4__) - -#define AVAILABLE_TONE_PINS 1 -#define USE_TIMER3 - -const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 3 /*, 1 */ }; -static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ }; - -#else - -#define AVAILABLE_TONE_PINS 1 -#define USE_TIMER2 - -// Leave timer 0 to last. -const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1, 0 */ }; -static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255 */ }; - -#endif - - - -static int8_t toneBegin(uint8_t _pin) -{ - int8_t _timer = -1; - - // if we're already using the pin, the timer should be configured. - for (int i = 0; i < AVAILABLE_TONE_PINS; i++) { - if (tone_pins[i] == _pin) { - return pgm_read_byte(tone_pin_to_timer_PGM + i); - } - } - - // search for an unused timer. - for (int i = 0; i < AVAILABLE_TONE_PINS; i++) { - if (tone_pins[i] == 255) { - tone_pins[i] = _pin; - _timer = pgm_read_byte(tone_pin_to_timer_PGM + i); - break; - } - } - - if (_timer != -1) - { - // Set timer specific stuff - // All timers in CTC mode - // 8 bit timers will require changing prescalar values, - // whereas 16 bit timers are set to either ck/1 or ck/64 prescalar - switch (_timer) - { - #if defined(TCCR0A) && defined(TCCR0B) && defined(WGM01) - case 0: - // 8 bit timer - TCCR0A = 0; - TCCR0B = 0; - bitWrite(TCCR0A, WGM01, 1); - bitWrite(TCCR0B, CS00, 1); - timer0_pin_port = portOutputRegister(digitalPinToPort(_pin)); - timer0_pin_mask = digitalPinToBitMask(_pin); - break; - #endif - - #if defined(TCCR1A) && defined(TCCR1B) && defined(WGM12) - case 1: - // 16 bit timer - TCCR1A = 0; - TCCR1B = 0; - bitWrite(TCCR1B, WGM12, 1); - bitWrite(TCCR1B, CS10, 1); - 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; - TCCR2B = 0; - bitWrite(TCCR2A, WGM21, 1); - bitWrite(TCCR2B, CS20, 1); - timer2_pin_port = portOutputRegister(digitalPinToPort(_pin)); - timer2_pin_mask = digitalPinToBitMask(_pin); - break; - #endif - - #if defined(TCCR3A) && defined(TCCR3B) && defined(TIMSK3) - case 3: - // 16 bit timer - TCCR3A = 0; - TCCR3B = 0; - bitWrite(TCCR3B, WGM32, 1); - bitWrite(TCCR3B, CS30, 1); - 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) - // TODO 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; - TCCR5B = 0; - bitWrite(TCCR5B, WGM52, 1); - bitWrite(TCCR5B, CS50, 1); - timer5_pin_port = portOutputRegister(digitalPinToPort(_pin)); - timer5_pin_mask = digitalPinToBitMask(_pin); - break; - #endif - } - } - - return _timer; -} - - - -// frequency (in hertz) and duration (in milliseconds). - -void tone(uint8_t _pin, unsigned int frequency, unsigned long duration) -{ - uint8_t prescalarbits = 0b001; - long toggle_count = 0; - uint32_t ocr = 0; - int8_t _timer; - - _timer = toneBegin(_pin); - - if (_timer >= 0) - { - // Set the pinMode as OUTPUT - pinMode(_pin, OUTPUT); - - // if we are using an 8 bit timer, scan through prescalars to find the best fit - if (_timer == 0 || _timer == 2) - { - ocr = F_CPU / frequency / 2 - 1; - prescalarbits = 0b001; // ck/1: same for both timers - if (ocr > 255) - { - ocr = F_CPU / frequency / 2 / 8 - 1; - prescalarbits = 0b010; // ck/8: same for both timers - - if (_timer == 2 && ocr > 255) - { - ocr = F_CPU / frequency / 2 / 32 - 1; - prescalarbits = 0b011; - } - - if (ocr > 255) - { - ocr = F_CPU / frequency / 2 / 64 - 1; - prescalarbits = _timer == 0 ? 0b011 : 0b100; - - if (_timer == 2 && ocr > 255) - { - ocr = F_CPU / frequency / 2 / 128 - 1; - prescalarbits = 0b101; - } - - if (ocr > 255) - { - ocr = F_CPU / frequency / 2 / 256 - 1; - prescalarbits = _timer == 0 ? 0b100 : 0b110; - if (ocr > 255) - { - // can't do any better than /1024 - ocr = F_CPU / frequency / 2 / 1024 - 1; - prescalarbits = _timer == 0 ? 0b101 : 0b111; - } - } - } - } - -#if defined(TCCR0B) - if (_timer == 0) - { - TCCR0B = (TCCR0B & 0b11111000) | prescalarbits; - } - else -#endif -#if defined(TCCR2B) - { - TCCR2B = (TCCR2B & 0b11111000) | 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 - ocr = F_CPU / frequency / 2 - 1; - - prescalarbits = 0b001; - if (ocr > 0xffff) - { - ocr = F_CPU / frequency / 2 / 64 - 1; - prescalarbits = 0b011; - } - - if (_timer == 1) - { -#if defined(TCCR1B) - TCCR1B = (TCCR1B & 0b11111000) | prescalarbits; -#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 - - } - - - // Calculate the toggle count - if (duration > 0) - { - toggle_count = 2 * frequency * duration / 1000; - } - else - { - toggle_count = -1; - } - - // Set the OCR for the given timer, - // set the toggle count, - // then turn on the interrupts - switch (_timer) - { - -#if defined(OCR0A) && defined(TIMSK0) && defined(OCIE0A) - case 0: - OCR0A = ocr; - timer0_toggle_count = toggle_count; - bitWrite(TIMSK0, OCIE0A, 1); - break; -#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(OCR3A) && defined(TIMSK3) && defined(OCIE3A) - case 3: - OCR3A = ocr; - timer3_toggle_count = toggle_count; - bitWrite(TIMSK3, OCIE3A, 1); - break; -#endif - -#if defined(OCR4A) && defined(TIMSK4) && defined(OCIE4A) - 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; - bitWrite(TIMSK5, OCIE5A, 1); - break; -#endif - - } - } -} - - -// XXX: this function only works properly for timer 2 (the only one we use -// currently). for the others, it should end the tone, but won't restore -// proper PWM functionality for the timer. -void disableTimer(uint8_t _timer) -{ - switch (_timer) - { - case 0: - #if defined(TIMSK0) - TIMSK0 = 0; - #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(TIMSK3) && defined(OCIE3A) - case 3: - bitWrite(TIMSK3, OCIE3A, 0); - break; -#endif - -#if defined(TIMSK4) && defined(OCIE4A) - case 4: - bitWrite(TIMSK4, OCIE4A, 0); - break; -#endif - -#if defined(TIMSK5) && defined(OCIE5A) - case 5: - bitWrite(TIMSK5, OCIE5A, 0); - break; -#endif - } -} - - -void noTone(uint8_t _pin) -{ - int8_t _timer = -1; - - for (int i = 0; i < AVAILABLE_TONE_PINS; i++) { - if (tone_pins[i] == _pin) { - _timer = pgm_read_byte(tone_pin_to_timer_PGM + i); - tone_pins[i] = 255; - break; - } - } - - disableTimer(_timer); - - digitalWrite(_pin, 0); -} - -#ifdef USE_TIMER0 -ISR(TIMER0_COMPA_vect) -{ - if (timer0_toggle_count != 0) - { - // toggle the pin - *timer0_pin_port ^= timer0_pin_mask; - - if (timer0_toggle_count > 0) - timer0_toggle_count--; - } - else - { - disableTimer(0); - *timer0_pin_port &= ~(timer0_pin_mask); // keep pin low after stop - } -} -#endif - - -#ifdef USE_TIMER1 -ISR(TIMER1_COMPA_vect) -{ - if (timer1_toggle_count != 0) - { - // toggle the pin - *timer1_pin_port ^= timer1_pin_mask; - - if (timer1_toggle_count > 0) - timer1_toggle_count--; - } - else - { - disableTimer(1); - *timer1_pin_port &= ~(timer1_pin_mask); // keep pin low after stop - } -} -#endif - - -#ifdef USE_TIMER2 -ISR(TIMER2_COMPA_vect) -{ - - if (timer2_toggle_count != 0) - { - // toggle the pin - *timer2_pin_port ^= timer2_pin_mask; - - if (timer2_toggle_count > 0) - timer2_toggle_count--; - } - else - { - // need to call noTone() so that the tone_pins[] entry is reset, so the - // timer gets initialized next time we call tone(). - // XXX: this assumes timer 2 is always the first one used. - noTone(tone_pins[0]); -// disableTimer(2); -// *timer2_pin_port &= ~(timer2_pin_mask); // keep pin low after stop - } -} -#endif - - -#ifdef USE_TIMER3 -ISR(TIMER3_COMPA_vect) -{ - if (timer3_toggle_count != 0) - { - // toggle the pin - *timer3_pin_port ^= timer3_pin_mask; - - if (timer3_toggle_count > 0) - timer3_toggle_count--; - } - else - { - disableTimer(3); - *timer3_pin_port &= ~(timer3_pin_mask); // keep pin low after stop - } -} -#endif - - -#ifdef USE_TIMER4 -ISR(TIMER4_COMPA_vect) -{ - if (timer4_toggle_count != 0) - { - // toggle the pin - *timer4_pin_port ^= timer4_pin_mask; - - if (timer4_toggle_count > 0) - timer4_toggle_count--; - } - else - { - disableTimer(4); - *timer4_pin_port &= ~(timer4_pin_mask); // keep pin low after stop - } -} -#endif - - -#ifdef USE_TIMER5 -ISR(TIMER5_COMPA_vect) -{ - if (timer5_toggle_count != 0) - { - // toggle the pin - *timer5_pin_port ^= timer5_pin_mask; - - if (timer5_toggle_count > 0) - timer5_toggle_count--; - } - else - { - disableTimer(5); - *timer5_pin_port &= ~(timer5_pin_mask); // keep pin low after stop - } -} -#endif -- cgit v1.2.3-18-g5258