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53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#include "jvc_protocol.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace remote_base {
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static const char *const TAG = "remote.jvc";
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static const uint8_t NBITS = 16;
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static const uint32_t HEADER_HIGH_US = 8400;
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static const uint32_t HEADER_LOW_US = 4200;
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static const uint32_t BIT_ONE_LOW_US = 1725;
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static const uint32_t BIT_ZERO_LOW_US = 525;
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static const uint32_t BIT_HIGH_US = 525;
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void JVCProtocol::encode(RemoteTransmitData *dst, const JVCData &data) {
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dst->set_carrier_frequency(38000);
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dst->reserve(2 + NBITS * 2u);
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dst->item(HEADER_HIGH_US, HEADER_LOW_US);
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for (uint32_t mask = 1UL << (NBITS - 1); mask != 0; mask >>= 1) {
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if (data.data & mask) {
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dst->item(BIT_HIGH_US, BIT_ONE_LOW_US);
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} else {
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dst->item(BIT_HIGH_US, BIT_ZERO_LOW_US);
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}
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}
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dst->mark(BIT_HIGH_US);
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}
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optional<JVCData> JVCProtocol::decode(RemoteReceiveData src) {
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JVCData out{.data = 0};
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if (!src.expect_item(HEADER_HIGH_US, HEADER_LOW_US))
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return {};
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for (uint8_t i = 0; i < NBITS; i++) {
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out.data <<= 1UL;
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if (src.expect_item(BIT_HIGH_US, BIT_ONE_LOW_US)) {
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out.data |= 1UL;
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} else if (src.expect_item(BIT_HIGH_US, BIT_ZERO_LOW_US)) {
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out.data |= 0UL;
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} else {
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return {};
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}
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}
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return out;
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}
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void JVCProtocol::dump(const JVCData &data) { ESP_LOGD(TAG, "Received JVC: data=0x%04X", data.data); }
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} // namespace remote_base
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} // namespace esphome
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