141 lines
5.4 KiB
C++
141 lines
5.4 KiB
C++
// Copyright 2009 Ken Shirriff
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// Copyright 2017 David Conran
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#include <algorithm>
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#include "IRrecv.h"
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#include "IRsend.h"
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#include "IRutils.h"
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// W W H H Y Y N N TTTTT EEEEE RRRRR
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// W W H H Y Y NN N T E R R
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// W W W HHHHH Y N N N T EEE RRRR
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// W W W H H Y N NN T E R R
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// WWW H H Y N N T EEEEE R R
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// Whynter A/C ARC-110WD added by Francesco Meschia
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// Whynter originally added from https://github.com/shirriff/Arduino-IRremote/
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// Constants
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#define WHYNTER_TICK 50U
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#define WHYNTER_HDR_MARK_TICKS 57U
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#define WHYNTER_HDR_MARK (WHYNTER_HDR_MARK_TICKS * WHYNTER_TICK)
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#define WHYNTER_HDR_SPACE_TICKS 57U
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#define WHYNTER_HDR_SPACE (WHYNTER_HDR_SPACE_TICKS * \
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WHYNTER_TICK)
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#define WHYNTER_BIT_MARK_TICKS 15U
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#define WHYNTER_BIT_MARK (WHYNTER_BIT_MARK_TICKS * WHYNTER_TICK)
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#define WHYNTER_ONE_SPACE_TICKS 43U
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#define WHYNTER_ONE_SPACE (WHYNTER_ONE_SPACE_TICKS * \
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WHYNTER_TICK)
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#define WHYNTER_ZERO_SPACE_TICKS 15U
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#define WHYNTER_ZERO_SPACE (WHYNTER_ZERO_SPACE_TICKS * \
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WHYNTER_TICK)
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#define WHYNTER_MIN_COMMAND_LENGTH_TICKS 2160U // Completely made up value.
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#define WHYNTER_MIN_COMMAND_LENGTH (WHYNTER_MIN_COMMAND_LENGTH_TICKS * \
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WHYNTER_TICK)
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#define WHYNTER_MIN_GAP_TICKS (WHYNTER_MIN_COMMAND_LENGTH_TICKS - \
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(2 * (WHYNTER_BIT_MARK_TICKS + WHYNTER_ZERO_SPACE_TICKS) + \
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WHYNTER_BITS * (WHYNTER_BIT_MARK_TICKS + WHYNTER_ONE_SPACE_TICKS)))
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#define WHYNTER_MIN_GAP (WHYNTER_MIN_GAP_TICKS * WHYNTER_TICK)
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#if SEND_WHYNTER
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// Send a Whynter message.
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//
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// Args:
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// data: message to be sent.
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// nbits: Nr. of bits of the message to be sent.
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// repeat: Nr. of additional times the message is to be sent.
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//
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// Status: STABLE
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//
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// Ref:
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// https://github.com/z3t0/Arduino-IRremote/blob/master/ir_Whynter.cpp
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void IRsend::sendWhynter(uint64_t data, uint16_t nbits, uint16_t repeat) {
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// Set IR carrier frequency
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enableIROut(38);
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for (uint16_t i = 0; i <= repeat; i++) {
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// (Pre-)Header
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mark(WHYNTER_BIT_MARK);
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space(WHYNTER_ZERO_SPACE);
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sendGeneric(WHYNTER_HDR_MARK, WHYNTER_HDR_SPACE,
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WHYNTER_BIT_MARK, WHYNTER_ONE_SPACE,
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WHYNTER_BIT_MARK, WHYNTER_ZERO_SPACE,
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WHYNTER_BIT_MARK, WHYNTER_MIN_GAP,
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WHYNTER_MIN_COMMAND_LENGTH - (WHYNTER_BIT_MARK +
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WHYNTER_ZERO_SPACE),
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data, nbits, 38, true, 0, // Repeats are already handled.
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50);
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}
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}
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#endif
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#if DECODE_WHYNTER
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// Decode the supplied Whynter message.
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//
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// Args:
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// results: Ptr to the data to decode and where to store the decode result.
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// nbits: Nr. of data bits to expect.
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// strict: Flag indicating if we should perform strict matching.
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// Returns:
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// boolean: True if it can decode it, false if it can't.
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//
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// Status: BETA Strict mode is ALPHA.
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//
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// Ref:
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// https://github.com/z3t0/Arduino-IRremote/blob/master/ir_Whynter.cpp
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bool IRrecv::decodeWhynter(decode_results *results, uint16_t nbits,
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bool strict) {
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if (results->rawlen < 2 * nbits + 2 * HEADER + FOOTER - 1)
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return false; // We don't have enough entries to possibly match.
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// Compliance
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if (strict && nbits != WHYNTER_BITS)
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return false; // Incorrect nr. of bits per spec.
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uint16_t offset = OFFSET_START;
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// Header
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// Sequence begins with a bit mark and a zero space.
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// These are typically small, so we'll prefer to do the calibration
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// on the much larger header mark & space that are next.
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if (!matchMark(results->rawbuf[offset++], WHYNTER_BIT_MARK)) return false;
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if (!matchSpace(results->rawbuf[offset++], WHYNTER_ZERO_SPACE)) return false;
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// Main header mark and space
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if (!matchMark(results->rawbuf[offset], WHYNTER_HDR_MARK)) return false;
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// Calculate how long the common tick time is based on the header mark.
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uint32_t m_tick = results->rawbuf[offset++] * RAWTICK /
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WHYNTER_HDR_MARK_TICKS;
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if (!matchSpace(results->rawbuf[offset], WHYNTER_HDR_SPACE)) return false;
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// Calculate how long the common tick time is based on the header space.
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uint32_t s_tick = results->rawbuf[offset++] * RAWTICK /
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WHYNTER_HDR_SPACE_TICKS;
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// Data
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uint64_t data = 0;
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match_result_t data_result = matchData(&(results->rawbuf[offset]), nbits,
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WHYNTER_BIT_MARK_TICKS * m_tick,
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WHYNTER_ONE_SPACE_TICKS * s_tick,
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WHYNTER_BIT_MARK_TICKS * m_tick,
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WHYNTER_ZERO_SPACE_TICKS * s_tick);
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if (data_result.success == false) return false;
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data = data_result.data;
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offset += data_result.used;
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// Footer
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if (!matchMark(results->rawbuf[offset++], WHYNTER_BIT_MARK_TICKS * m_tick))
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return false;
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if (offset < results->rawlen &&
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!matchAtLeast(results->rawbuf[offset], WHYNTER_MIN_GAP_TICKS * s_tick))
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return false;
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// Success
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results->decode_type = WHYNTER;
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results->bits = nbits;
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results->value = data;
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results->address = 0;
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results->command = 0;
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return true;
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}
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#endif
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