389ff92cc1
* Makefile, Scripts: new linter * About: remove ID from IC * Firmware: remove double define for DIVC/DIVR * Scripts: check folder names too. Docker: replace syntax check with make lint. * Reformat Sources and Migrate to new file naming convention * Docker: symlink clang-format-12 to clang-format * Add coding style guide
55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
#pragma once
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#include <stdint.h>
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#include <atomic>
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class MetakomDecoder {
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public:
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bool read(uint8_t* data, uint8_t data_size);
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void process_front(bool polarity, uint32_t time);
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MetakomDecoder();
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private:
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enum class BitState : uint8_t {
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WAIT_FRONT_HIGH,
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WAIT_FRONT_LOW,
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};
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BitState bit_state;
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enum class State : uint8_t {
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WAIT_PERIOD_SYNC,
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WAIT_START_BIT,
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WAIT_START_WORD,
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READ_WORD,
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READ_STOP_WORD,
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};
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State state;
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// high + low period time
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uint32_t period_time;
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uint32_t low_time_storage;
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static const uint8_t period_sample_count = 10;
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uint8_t period_sample_index;
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uint32_t period_sample_data[period_sample_count];
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// ready flag, key is readed and valid
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std::atomic<bool> ready;
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// max period, 230us x clock per us
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uint32_t max_period;
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uint8_t tmp_data;
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uint8_t tmp_counter;
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uint32_t key_data;
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uint8_t key_data_index;
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void reset_state();
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bool parity_check(uint8_t data);
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bool process_bit(bool polarity, uint32_t time, uint32_t* high_time, uint32_t* low_time);
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};
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