-
Notifications
You must be signed in to change notification settings - Fork 0
/
IRremoteInt.h
602 lines (519 loc) · 17.8 KB
/
IRremoteInt.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
//******************************************************************************
// IRremote
// Version 2.0.1 June, 2015
// Copyright 2009 Ken Shirriff
// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
//
// Modified by Paul Stoffregen <paul@pjrc.com> to support other boards and timers
//
// Interrupt code based on NECIRrcv by Joe Knapp
// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
//
// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
// Whynter A/C ARC-110WD added by Francesco Meschia
//******************************************************************************
#ifndef IRremoteint_h
#define IRremoteint_h
//------------------------------------------------------------------------------
// Include the right Arduino header
//
#if defined(ARDUINO) && (ARDUINO >= 100)
# include <Arduino.h>
#else
# if !defined(IRPRONTO)
# include <WProgram.h>
# endif
#endif
//------------------------------------------------------------------------------
// This handles definition and access to global variables
//
#ifdef IR_GLOBAL
# define EXTERN
#else
# define EXTERN extern
#endif
//------------------------------------------------------------------------------
// Information for the Interrupt Service Routine
//
#define RAWBUF 101 // Maximum length of raw duration buffer
typedef
struct {
// The fields are ordered to reduce memory over caused by struct-padding
uint8_t rcvstate; // State Machine state
uint8_t recvpin; // Pin connected to IR data from detector
uint8_t blinkpin;
uint8_t blinkflag; // true -> enable blinking of pin on IR processing
uint8_t rawlen; // counter of entries in rawbuf
unsigned int timer; // State timer, counts 50uS ticks.
unsigned int rawbuf[RAWBUF]; // raw data
uint8_t overflow; // Raw buffer overflow occurred
}
irparams_t;
// ISR State-Machine : Receiver States
#define STATE_IDLE 2
#define STATE_MARK 3
#define STATE_SPACE 4
#define STATE_STOP 5
#define STATE_OVERFLOW 6
// Allow all parts of the code access to the ISR data
// NB. The data can be changed by the ISR at any time, even mid-function
// Therefore we declare it as "volatile" to stop the compiler/CPU caching it
EXTERN volatile irparams_t irparams;
//------------------------------------------------------------------------------
// Defines for blinking the LED
//
#if defined(CORE_LED0_PIN)
# define BLINKLED CORE_LED0_PIN
# define BLINKLED_ON() (digitalWrite(CORE_LED0_PIN, HIGH))
# define BLINKLED_OFF() (digitalWrite(CORE_LED0_PIN, LOW))
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define BLINKLED 13
# define BLINKLED_ON() (PORTB |= B10000000)
# define BLINKLED_OFF() (PORTB &= B01111111)
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
# define BLINKLED 0
# define BLINKLED_ON() (PORTD |= B00000001)
# define BLINKLED_OFF() (PORTD &= B11111110)
#else
# define BLINKLED 13
#define BLINKLED_ON() (PORTB |= B00100000)
# define BLINKLED_OFF() (PORTB &= B11011111)
#endif
//------------------------------------------------------------------------------
// CPU Frequency
//
#ifdef F_CPU
# define SYSCLOCK F_CPU // main Arduino clock
#else
# define SYSCLOCK 16000000 // main Arduino clock
#endif
//------------------------------------------------------------------------------
// Defines for setting and clearing register bits
//
#ifndef cbi
# define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#endif
#ifndef sbi
# define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
#endif
//------------------------------------------------------------------------------
// Pulse parms are ((X*50)-100) for the Mark and ((X*50)+100) for the Space.
// First MARK is the one after the long gap
// Pulse parameters in uSec
//
// Due to sensor lag, when received, Marks tend to be 100us too long and
// Spaces tend to be 100us too short
#define MARK_EXCESS 100
// microseconds per clock interrupt tick
#define USECPERTICK 50
// Upper and Lower percentage tolerances in measurements
#define TOLERANCE 25
#define LTOL (1.0 - (TOLERANCE/100.))
#define UTOL (1.0 + (TOLERANCE/100.))
// Minimum gap between IR transmissions
#define _GAP 5000
#define GAP_TICKS (_GAP/USECPERTICK)
#define TICKS_LOW(us) ((int)(((us)*LTOL/USECPERTICK)))
#define TICKS_HIGH(us) ((int)(((us)*UTOL/USECPERTICK + 1)))
//------------------------------------------------------------------------------
// IR detector output is active low
//
#define MARK 0
#define SPACE 1
//------------------------------------------------------------------------------
// Define which timer to use
//
// Uncomment the timer you wish to use on your board.
// If you are using another library which uses timer2, you have options to
// switch IRremote to use a different timer.
//
// Arduino Mega
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
//#define IR_USE_TIMER1 // tx = pin 11
#define IR_USE_TIMER2 // tx = pin 9
//#define IR_USE_TIMER3 // tx = pin 5
//#define IR_USE_TIMER4 // tx = pin 6
//#define IR_USE_TIMER5 // tx = pin 46
// Teensy 1.0
#elif defined(__AVR_AT90USB162__)
#define IR_USE_TIMER1 // tx = pin 17
// Teensy 2.0
#elif defined(__AVR_ATmega32U4__)
//#define IR_USE_TIMER1 // tx = pin 14
//#define IR_USE_TIMER3 // tx = pin 9
#define IR_USE_TIMER4_HS // tx = pin 10
// Teensy 3.0 / Teensy 3.1
#elif defined(__MK20DX128__) || defined(__MK20DX256__)
#define IR_USE_TIMER_CMT // tx = pin 5
// Teensy-LC
#elif defined(__MKL26Z64__)
#define IR_USE_TIMER_TPM1 // tx = pin 16
// Teensy++ 1.0 & 2.0
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
//#define IR_USE_TIMER1 // tx = pin 25
#define IR_USE_TIMER2 // tx = pin 1
//#define IR_USE_TIMER3 // tx = pin 16
// Sanguino
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
//#define IR_USE_TIMER1 // tx = pin 13
#define IR_USE_TIMER2 // tx = pin 14
// Atmega8
#elif defined(__AVR_ATmega8P__) || defined(__AVR_ATmega8__)
#define IR_USE_TIMER1 // tx = pin 9
// ATtiny84
#elif defined(__AVR_ATtiny84__)
#define IR_USE_TIMER1 // tx = pin 6
//ATtiny85
#elif defined(__AVR_ATtiny85__)
#define IR_USE_TIMER_TINY0 // tx = pin 1
// Arduino Duemilanove, Diecimila, LilyPad, Mini, Fio, Nano, etc
#else
//#define IR_USE_TIMER1 // tx = pin 9
#define IR_USE_TIMER2 // tx = pin 3
#endif
//------------------------------------------------------------------------------
// Defines for Timer
//---------------------------------------------------------
// Timer2 (8 bits)
//
#if defined(IR_USE_TIMER2)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR2A |= _BV(COM2B1))
#define TIMER_DISABLE_PWM (TCCR2A &= ~(_BV(COM2B1)))
#define TIMER_ENABLE_INTR (TIMSK2 = _BV(OCIE2A))
#define TIMER_DISABLE_INTR (TIMSK2 = 0)
#define TIMER_INTR_NAME TIMER2_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint8_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR2A = _BV(WGM20); \
TCCR2B = _BV(WGM22) | _BV(CS20); \
OCR2A = pwmval; \
OCR2B = pwmval / 3; \
})
#define TIMER_COUNT_TOP (SYSCLOCK * USECPERTICK / 1000000)
//-----------------
#if (TIMER_COUNT_TOP < 256)
# define TIMER_CONFIG_NORMAL() ({ \
TCCR2A = _BV(WGM21); \
TCCR2B = _BV(CS20); \
OCR2A = TIMER_COUNT_TOP; \
TCNT2 = 0; \
})
#else
# define TIMER_CONFIG_NORMAL() ({ \
TCCR2A = _BV(WGM21); \
TCCR2B = _BV(CS21); \
OCR2A = TIMER_COUNT_TOP / 8; \
TCNT2 = 0; \
})
#endif
//-----------------
#if defined(CORE_OC2B_PIN)
# define TIMER_PWM_PIN CORE_OC2B_PIN // Teensy
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define TIMER_PWM_PIN 9 // Arduino Mega
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
# define TIMER_PWM_PIN 14 // Sanguino
#else
# define TIMER_PWM_PIN 3 // Arduino Duemilanove, Diecimila, LilyPad, etc
#endif
//---------------------------------------------------------
// Timer1 (16 bits)
//
#elif defined(IR_USE_TIMER1)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR1A |= _BV(COM1A1))
#define TIMER_DISABLE_PWM (TCCR1A &= ~(_BV(COM1A1)))
//-----------------
#if defined(__AVR_ATmega8P__) || defined(__AVR_ATmega8__)
# define TIMER_ENABLE_INTR (TIMSK |= _BV(OCIE1A))
# define TIMER_DISABLE_INTR (TIMSK &= ~_BV(OCIE1A))
#else
# define TIMER_ENABLE_INTR (TIMSK1 = _BV(OCIE1A))
# define TIMER_DISABLE_INTR (TIMSK1 = 0)
#endif
//-----------------
#define TIMER_INTR_NAME TIMER1_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR1A = _BV(WGM11); \
TCCR1B = _BV(WGM13) | _BV(CS10); \
ICR1 = pwmval; \
OCR1A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR1A = 0; \
TCCR1B = _BV(WGM12) | _BV(CS10); \
OCR1A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT1 = 0; \
})
//-----------------
#if defined(CORE_OC1A_PIN)
# define TIMER_PWM_PIN CORE_OC1A_PIN // Teensy
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define TIMER_PWM_PIN 11 // Arduino Mega
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
# define TIMER_PWM_PIN 13 // Sanguino
#elif defined(__AVR_ATtiny84__)
# define TIMER_PWM_PIN 6
#else
# define TIMER_PWM_PIN 9 // Arduino Duemilanove, Diecimila, LilyPad, etc
#endif
//---------------------------------------------------------
// Timer3 (16 bits)
//
#elif defined(IR_USE_TIMER3)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR3A |= _BV(COM3A1))
#define TIMER_DISABLE_PWM (TCCR3A &= ~(_BV(COM3A1)))
#define TIMER_ENABLE_INTR (TIMSK3 = _BV(OCIE3A))
#define TIMER_DISABLE_INTR (TIMSK3 = 0)
#define TIMER_INTR_NAME TIMER3_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR3A = _BV(WGM31); \
TCCR3B = _BV(WGM33) | _BV(CS30); \
ICR3 = pwmval; \
OCR3A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR3A = 0; \
TCCR3B = _BV(WGM32) | _BV(CS30); \
OCR3A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT3 = 0; \
})
//-----------------
#if defined(CORE_OC3A_PIN)
# define TIMER_PWM_PIN CORE_OC3A_PIN // Teensy
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define TIMER_PWM_PIN 5 // Arduino Mega
#else
# error "Please add OC3A pin number here\n"
#endif
//---------------------------------------------------------
// Timer4 (10 bits, high speed option)
//
#elif defined(IR_USE_TIMER4_HS)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR4A |= _BV(COM4A1))
#define TIMER_DISABLE_PWM (TCCR4A &= ~(_BV(COM4A1)))
#define TIMER_ENABLE_INTR (TIMSK4 = _BV(TOIE4))
#define TIMER_DISABLE_INTR (TIMSK4 = 0)
#define TIMER_INTR_NAME TIMER4_OVF_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR4A = (1<<PWM4A); \
TCCR4B = _BV(CS40); \
TCCR4C = 0; \
TCCR4D = (1<<WGM40); \
TCCR4E = 0; \
TC4H = pwmval >> 8; \
OCR4C = pwmval; \
TC4H = (pwmval / 3) >> 8; \
OCR4A = (pwmval / 3) & 255; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR4A = 0; \
TCCR4B = _BV(CS40); \
TCCR4C = 0; \
TCCR4D = 0; \
TCCR4E = 0; \
TC4H = (SYSCLOCK * USECPERTICK / 1000000) >> 8; \
OCR4C = (SYSCLOCK * USECPERTICK / 1000000) & 255; \
TC4H = 0; \
TCNT4 = 0; \
})
//-----------------
#if defined(CORE_OC4A_PIN)
# define TIMER_PWM_PIN CORE_OC4A_PIN // Teensy
#elif defined(__AVR_ATmega32U4__)
# define TIMER_PWM_PIN 13 // Leonardo
#else
# error "Please add OC4A pin number here\n"
#endif
//---------------------------------------------------------
// Timer4 (16 bits)
//
#elif defined(IR_USE_TIMER4)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR4A |= _BV(COM4A1))
#define TIMER_DISABLE_PWM (TCCR4A &= ~(_BV(COM4A1)))
#define TIMER_ENABLE_INTR (TIMSK4 = _BV(OCIE4A))
#define TIMER_DISABLE_INTR (TIMSK4 = 0)
#define TIMER_INTR_NAME TIMER4_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR4A = _BV(WGM41); \
TCCR4B = _BV(WGM43) | _BV(CS40); \
ICR4 = pwmval; \
OCR4A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR4A = 0; \
TCCR4B = _BV(WGM42) | _BV(CS40); \
OCR4A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT4 = 0; \
})
//-----------------
#if defined(CORE_OC4A_PIN)
# define TIMER_PWM_PIN CORE_OC4A_PIN
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define TIMER_PWM_PIN 6 // Arduino Mega
#else
# error "Please add OC4A pin number here\n"
#endif
//---------------------------------------------------------
// Timer5 (16 bits)
//
#elif defined(IR_USE_TIMER5)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR5A |= _BV(COM5A1))
#define TIMER_DISABLE_PWM (TCCR5A &= ~(_BV(COM5A1)))
#define TIMER_ENABLE_INTR (TIMSK5 = _BV(OCIE5A))
#define TIMER_DISABLE_INTR (TIMSK5 = 0)
#define TIMER_INTR_NAME TIMER5_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR5A = _BV(WGM51); \
TCCR5B = _BV(WGM53) | _BV(CS50); \
ICR5 = pwmval; \
OCR5A = pwmval / 3; \
})
#define TIMER_CONFIG_NORMAL() ({ \
TCCR5A = 0; \
TCCR5B = _BV(WGM52) | _BV(CS50); \
OCR5A = SYSCLOCK * USECPERTICK / 1000000; \
TCNT5 = 0; \
})
//-----------------
#if defined(CORE_OC5A_PIN)
# define TIMER_PWM_PIN CORE_OC5A_PIN
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
# define TIMER_PWM_PIN 46 // Arduino Mega
#else
# error "Please add OC5A pin number here\n"
#endif
//---------------------------------------------------------
// Special carrier modulator timer
//
#elif defined(IR_USE_TIMER_CMT)
#define TIMER_RESET ({ \
uint8_t tmp = CMT_MSC; \
CMT_CMD2 = 30; \
})
#define TIMER_ENABLE_PWM do { \
CORE_PIN5_CONFIG = PORT_PCR_MUX(2) | PORT_PCR_DSE | PORT_PCR_SRE; \
} while(0)
#define TIMER_DISABLE_PWM do { \
CORE_PIN5_CONFIG = PORT_PCR_MUX(1) | PORT_PCR_DSE | PORT_PCR_SRE; \
} while(0)
#define TIMER_ENABLE_INTR NVIC_ENABLE_IRQ(IRQ_CMT)
#define TIMER_DISABLE_INTR NVIC_DISABLE_IRQ(IRQ_CMT)
#define TIMER_INTR_NAME cmt_isr
//-----------------
#ifdef ISR
# undef ISR
#endif
#define ISR(f) void f(void)
//-----------------
#if (F_BUS == 48000000)
# define CMT_PPS_VAL 5
#else
# define CMT_PPS_VAL 2
#endif
//-----------------
#define TIMER_CONFIG_KHZ(val) ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \
SIM_SOPT2 |= SIM_SOPT2_PTD7PAD; \
CMT_PPS = CMT_PPS_VAL; \
CMT_CGH1 = 2667 / val; \
CMT_CGL1 = 5333 / val; \
CMT_CMD1 = 0; \
CMT_CMD2 = 30; \
CMT_CMD3 = 0; \
CMT_CMD4 = 0; \
CMT_OC = 0x60; \
CMT_MSC = 0x01; \
})
#define TIMER_CONFIG_NORMAL() ({ \
SIM_SCGC4 |= SIM_SCGC4_CMT; \
CMT_PPS = CMT_PPS_VAL; \
CMT_CGH1 = 1; \
CMT_CGL1 = 1; \
CMT_CMD1 = 0; \
CMT_CMD2 = 30 \
CMT_CMD3 = 0; \
CMT_CMD4 = 19; \
CMT_OC = 0; \
CMT_MSC = 0x03; \
})
#define TIMER_PWM_PIN 5
// defines for TPM1 timer on Teensy-LC
#elif defined(IR_USE_TIMER_TPM1)
#define TIMER_RESET FTM1_SC |= FTM_SC_TOF;
#define TIMER_ENABLE_PWM CORE_PIN16_CONFIG = PORT_PCR_MUX(3)|PORT_PCR_DSE|PORT_PCR_SRE
#define TIMER_DISABLE_PWM CORE_PIN16_CONFIG = PORT_PCR_MUX(1)|PORT_PCR_SRE
#define TIMER_ENABLE_INTR NVIC_ENABLE_IRQ(IRQ_FTM1)
#define TIMER_DISABLE_INTR NVIC_DISABLE_IRQ(IRQ_FTM1)
#define TIMER_INTR_NAME ftm1_isr
#ifdef ISR
#undef ISR
#endif
#define ISR(f) void f(void)
#define TIMER_CONFIG_KHZ(val) ({ \
SIM_SCGC6 |= SIM_SCGC6_TPM1; \
FTM1_SC = 0; \
FTM1_CNT = 0; \
FTM1_MOD = (F_PLL/2000) / val - 1; \
FTM1_C0V = (F_PLL/6000) / val - 1; \
FTM1_SC = FTM_SC_CLKS(1) | FTM_SC_PS(0); \
})
#define TIMER_CONFIG_NORMAL() ({ \
SIM_SCGC6 |= SIM_SCGC6_TPM1; \
FTM1_SC = 0; \
FTM1_CNT = 0; \
FTM1_MOD = (F_PLL/40000) - 1; \
FTM1_C0V = 0; \
FTM1_SC = FTM_SC_CLKS(1) | FTM_SC_PS(0) | FTM_SC_TOF | FTM_SC_TOIE; \
})
#define TIMER_PWM_PIN 16
// defines for timer_tiny0 (8 bits)
#elif defined(IR_USE_TIMER_TINY0)
#define TIMER_RESET
#define TIMER_ENABLE_PWM (TCCR0A |= _BV(COM0B1))
#define TIMER_DISABLE_PWM (TCCR0A &= ~(_BV(COM0B1)))
#define TIMER_ENABLE_INTR (TIMSK |= _BV(OCIE0A))
#define TIMER_DISABLE_INTR (TIMSK &= ~(_BV(OCIE0A)))
#define TIMER_INTR_NAME TIMER0_COMPA_vect
#define TIMER_CONFIG_KHZ(val) ({ \
const uint8_t pwmval = SYSCLOCK / 2000 / (val); \
TCCR0A = _BV(WGM00); \
TCCR0B = _BV(WGM02) | _BV(CS00); \
OCR0A = pwmval; \
OCR0B = pwmval / 3; \
})
#define TIMER_COUNT_TOP (SYSCLOCK * USECPERTICK / 1000000)
#if (TIMER_COUNT_TOP < 256)
#define TIMER_CONFIG_NORMAL() ({ \
TCCR0A = _BV(WGM01); \
TCCR0B = _BV(CS00); \
OCR0A = TIMER_COUNT_TOP; \
TCNT0 = 0; \
})
#else
#define TIMER_CONFIG_NORMAL() ({ \
TCCR0A = _BV(WGM01); \
TCCR0B = _BV(CS01); \
OCR0A = TIMER_COUNT_TOP / 8; \
TCNT0 = 0; \
})
#endif
#define TIMER_PWM_PIN 1 /* ATtiny85 */
//---------------------------------------------------------
// Unknown Timer
//
#else
# error "Internal code configuration error, no known IR_USE_TIMER# defined\n"
#endif
#endif