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IRremote.cpp
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IRremote.cpp
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/*
* IRremote
* Version 0.11 August, 2009
* 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
* Modified by Mitra Ardron <mitra@mitra.biz>
* Added Sanyo and Mitsubishi controllers
* Modified Sony to spot the repeat codes that some Sony's send
* Modified by Gaspard van Koningsveld to trim out IRrecv, not using PWM anymore, allow setting of IR LED pin, and make it compatible with the Spark Core v1.0 (STM32F103CB based)
*
* 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)
*/
#include "IRremote.h"
IRsend::IRsend(int irPin) : irPin(irPin) {};
// From https://github.com/zoellner/IRLib/blob/master/IRLib.cpp and also
// based on https://gist.github.com/technobly/8313449
uint16_t TIM_ARR = (uint16_t)(24000000 / 38000) - 1; // 38 KHz Init
// User defined analogWrite() to gain control of PWM initialization
void IRsend::analogWrite2(uint16_t pin, uint8_t value) {
TIM_OCInitTypeDef TIM_OCInitStructure;
if (pin >= TOTAL_PINS || PIN_MAP[pin].timer_peripheral == NULL) {
return;
}
// SPI safety check
if (SPI.isEnabled() == true && (pin == SCK || pin == MOSI || pin == MISO)) {
return;
}
// I2C safety check
if (Wire.isEnabled() == true && (pin == SCL || pin == SDA)) {
return;
}
// Serial1 safety check
if (Serial1.isEnabled() == true && (pin == RX || pin == TX)) {
return;
}
if (PIN_MAP[pin].pin_mode != OUTPUT && PIN_MAP[pin].pin_mode != AF_OUTPUT_PUSHPULL) {
return;
}
// Don't re-init PWM and cause a glitch if already setup, just update duty cycle and return.
if (PIN_MAP[pin].pin_mode == AF_OUTPUT_PUSHPULL) {
TIM_OCInitStructure.TIM_Pulse = (uint16_t)(value * (TIM_ARR + 1) / 255);
if (PIN_MAP[pin].timer_ch == TIM_Channel_1) {
PIN_MAP[pin].timer_peripheral-> CCR1 = TIM_OCInitStructure.TIM_Pulse;
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_2) {
PIN_MAP[pin].timer_peripheral-> CCR2 = TIM_OCInitStructure.TIM_Pulse;
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_3) {
PIN_MAP[pin].timer_peripheral-> CCR3 = TIM_OCInitStructure.TIM_Pulse;
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_4) {
PIN_MAP[pin].timer_peripheral-> CCR4 = TIM_OCInitStructure.TIM_Pulse;
}
return;
}
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
//PWM Frequency : PWM_FREQ (Hz)
uint16_t TIM_Prescaler = (uint16_t)(SystemCoreClock / 24000000) - 1; //TIM Counter clock = 24MHz
// TIM Channel Duty Cycle(%) = (TIM_CCR / TIM_ARR + 1) * 100
uint16_t TIM_CCR = (uint16_t)(value * (TIM_ARR + 1) / 255);
// AFIO clock enable
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
//pinMode(pin, AF_OUTPUT_PUSHPULL); // we need to do this manually else we get a glitch
// TIM clock enable
if (PIN_MAP[pin].timer_peripheral == TIM2)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
else if (PIN_MAP[pin].timer_peripheral == TIM3)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
else if (PIN_MAP[pin].timer_peripheral == TIM4)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
// Time base configuration
TIM_TimeBaseStructure.TIM_Period = TIM_ARR;
TIM_TimeBaseStructure.TIM_Prescaler = TIM_Prescaler;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(PIN_MAP[pin].timer_peripheral, & TIM_TimeBaseStructure);
// PWM1 Mode configuration
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_Pulse = TIM_CCR;
if (PIN_MAP[pin].timer_ch == TIM_Channel_1) {
// PWM1 Mode configuration: Channel1
TIM_OC1Init(PIN_MAP[pin].timer_peripheral, & TIM_OCInitStructure);
TIM_OC1PreloadConfig(PIN_MAP[pin].timer_peripheral, TIM_OCPreload_Enable);
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_2) {
// PWM1 Mode configuration: Channel2
TIM_OC2Init(PIN_MAP[pin].timer_peripheral, & TIM_OCInitStructure);
TIM_OC2PreloadConfig(PIN_MAP[pin].timer_peripheral, TIM_OCPreload_Enable);
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_3) {
// PWM1 Mode configuration: Channel3
TIM_OC3Init(PIN_MAP[pin].timer_peripheral, & TIM_OCInitStructure);
TIM_OC3PreloadConfig(PIN_MAP[pin].timer_peripheral, TIM_OCPreload_Enable);
} else if (PIN_MAP[pin].timer_ch == TIM_Channel_4) {
// PWM1 Mode configuration: Channel4
TIM_OC4Init(PIN_MAP[pin].timer_peripheral, & TIM_OCInitStructure);
TIM_OC4PreloadConfig(PIN_MAP[pin].timer_peripheral, TIM_OCPreload_Enable);
}
TIM_ARRPreloadConfig(PIN_MAP[pin].timer_peripheral, ENABLE);
// TIM enable counter
TIM_Cmd(PIN_MAP[pin].timer_peripheral, ENABLE);
}
void IRsend::sendNEC(unsigned long data, int nbits)
{
enableIROut(38);
mark(NEC_HDR_MARK);
space(NEC_HDR_SPACE);
for (int i = 0; i < nbits; i++) {
if (data & TOPBIT) {
mark(NEC_BIT_MARK);
space(NEC_ONE_SPACE);
}
else {
mark(NEC_BIT_MARK);
space(NEC_ZERO_SPACE);
}
data <<= 1;
}
mark(NEC_BIT_MARK);
space(0);
}
void IRsend::sendSony(unsigned long data, int nbits) {
enableIROut(40);
mark(SONY_HDR_MARK);
space(SONY_HDR_SPACE);
data = data << (32 - nbits);
for (int i = 0; i < nbits; i++) {
if (data & TOPBIT) {
mark(SONY_ONE_MARK);
space(SONY_HDR_SPACE);
}
else {
mark(SONY_ZERO_MARK);
space(SONY_HDR_SPACE);
}
data <<= 1;
}
}
void IRsend::sendRaw(const uint16_t *buf, int len, int hz)
{
enableIROut(hz);
for (int i = 0; i < len; i++) {
if (i & 1) {
space(buf[i]);
}
else {
mark(buf[i]);
}
}
space(0); // Just to be sure
}
// Note: first bit must be a one (start bit)
void IRsend::sendRC5(unsigned long data, int nbits)
{
enableIROut(36);
data = data << (32 - nbits);
mark(RC5_T1); // First start bit
space(RC5_T1); // Second start bit
mark(RC5_T1); // Second start bit
for (int i = 0; i < nbits; i++) {
if (data & TOPBIT) {
space(RC5_T1); // 1 is space, then mark
mark(RC5_T1);
}
else {
mark(RC5_T1);
space(RC5_T1);
}
data <<= 1;
}
space(0); // Turn off at end
}
// Caller needs to take care of flipping the toggle bit
void IRsend::sendRC6(unsigned long data, int nbits)
{
enableIROut(36);
data = data << (32 - nbits);
mark(RC6_HDR_MARK);
space(RC6_HDR_SPACE);
mark(RC6_T1); // start bit
space(RC6_T1);
int t;
for (int i = 0; i < nbits; i++) {
if (i == 3) {
// double-wide trailer bit
t = 2 * RC6_T1;
}
else {
t = RC6_T1;
}
if (data & TOPBIT) {
mark(t);
space(t);
}
else {
space(t);
mark(t);
}
data <<= 1;
}
space(0); // Turn off at end
}
/* Sharp and DISH support by Todd Treece ( http://unionbridge.org/design/ircommand )
The Dish send function needs to be repeated 4 times, and the Sharp function
has the necessary repeat built in because of the need to invert the signal.
Sharp protocol documentation:
http://www.sbprojects.com/knowledge/ir/sharp.htm
Here are the LIRC files that I found that seem to match the remote codes
from the oscilloscope:
Sharp LCD TV:
http://lirc.sourceforge.net/remotes/sharp/GA538WJSA
DISH NETWORK (echostar 301):
http://lirc.sourceforge.net/remotes/echostar/301_501_3100_5100_58xx_59xx
For the DISH codes, only send the last for characters of the hex.
i.e. use 0x1C10 instead of 0x0000000000001C10 which is listed in the
linked LIRC file.
*/
void IRsend::sendSharp(unsigned long data, int nbits) {
unsigned long invertdata = data ^ SHARP_TOGGLE_MASK;
enableIROut(38);
for (int i = 0; i < nbits; i++) {
if (data & 0x4000) {
mark(SHARP_BIT_MARK);
space(SHARP_ONE_SPACE);
}
else {
mark(SHARP_BIT_MARK);
space(SHARP_ZERO_SPACE);
}
data <<= 1;
}
mark(SHARP_BIT_MARK);
space(SHARP_ZERO_SPACE);
delay(46);
for (int i = 0; i < nbits; i++) {
if (invertdata & 0x4000) {
mark(SHARP_BIT_MARK);
space(SHARP_ONE_SPACE);
}
else {
mark(SHARP_BIT_MARK);
space(SHARP_ZERO_SPACE);
}
invertdata <<= 1;
}
mark(SHARP_BIT_MARK);
space(SHARP_ZERO_SPACE);
delay(46);
}
void IRsend::sendDISH(unsigned long data, int nbits)
{
enableIROut(56);
mark(DISH_HDR_MARK);
space(DISH_HDR_SPACE);
for (int i = 0; i < nbits; i++) {
if (data & DISH_TOP_BIT) {
mark(DISH_BIT_MARK);
space(DISH_ONE_SPACE);
}
else {
mark(DISH_BIT_MARK);
space(DISH_ZERO_SPACE);
}
data <<= 1;
}
}
void IRsend::sendPanasonic(unsigned int address, unsigned long data) {
enableIROut(35);
mark(PANASONIC_HDR_MARK);
space(PANASONIC_HDR_SPACE);
for(int i=0;i<16;i++)
{
mark(PANASONIC_BIT_MARK);
if (address & 0x8000) {
space(PANASONIC_ONE_SPACE);
} else {
space(PANASONIC_ZERO_SPACE);
}
address <<= 1;
}
for (int i=0; i < 32; i++) {
mark(PANASONIC_BIT_MARK);
if (data & TOPBIT) {
space(PANASONIC_ONE_SPACE);
} else {
space(PANASONIC_ZERO_SPACE);
}
data <<= 1;
}
mark(PANASONIC_BIT_MARK);
space(0);
}
void IRsend::sendJVC(unsigned long data, int nbits, int repeat)
{
enableIROut(38);
data = data << (32 - nbits);
if (!repeat){
mark(JVC_HDR_MARK);
space(JVC_HDR_SPACE);
}
for (int i = 0; i < nbits; i++) {
if (data & TOPBIT) {
mark(JVC_BIT_MARK);
space(JVC_ONE_SPACE);
}
else {
mark(JVC_BIT_MARK);
space(JVC_ZERO_SPACE);
}
data <<= 1;
}
mark(JVC_BIT_MARK);
space(0);
}
void IRsend::My_delay_uSecs(unsigned int T) {
if(T){if(T>16000) {delayMicroseconds(T % 1000); delay(T/1000); } else delayMicroseconds(T);};
}
void IRsend::mark(int time) {
// Sends an IR mark (frequency burst output) for the specified number of microseconds.
analogWrite2 (irPin,128);
My_delay_uSecs(time);
}
void IRsend::space(int time) {
// Sends an IR space (no output) for the specified number of microseconds.
analogWrite2 (irPin,0);
My_delay_uSecs(time);
}
void IRsend::enableIROut(int khz) {
// Enables IR output. The khz value controls the modulation frequency in kilohertz.
// MAX frequency is 166khz.
pinMode (irPin, OUTPUT);
TIM_ARR = (uint16_t)(24000000 / (khz*1000)) - 1;
analogWrite2 (irPin,128); // 50% Duty Cycle
pinMode(irPin, AF_OUTPUT_PUSHPULL);
space(0); // And turn off the PWM output until we need it
delay(100);
}