91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
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#pragma once
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#include <stdint.h>
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#include "irda.h"
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#include "irda_i.h"
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#define MATCH_BIT_TIMING(x, v, delta) ( ((x) < (v + delta)) \
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&& ((x) > (v - delta)))
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#define MATCH_PREAMBLE_TIMING(x, v, delta) ( ((x) < ((v) * (1 + (delta)))) \
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&& ((x) > ((v) * (1 - (delta)))))
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typedef struct IrdaCommonDecoder IrdaCommonDecoder;
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typedef struct IrdaCommonEncoder IrdaCommonEncoder;
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typedef IrdaStatus (*IrdaCommonDecode)(IrdaCommonDecoder*);
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typedef bool (*IrdaCommonInterpret)(IrdaCommonDecoder*);
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typedef IrdaStatus (*IrdaCommonEncode)(IrdaCommonEncoder* encoder, uint32_t* out, bool* polarity);
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typedef struct {
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IrdaTimings timings;
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bool manchester_inverse_level;
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uint32_t databit_len;
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IrdaCommonDecode decode;
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IrdaCommonDecode decode_repeat;
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IrdaCommonInterpret interpret;
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IrdaCommonEncode encode;
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IrdaCommonEncode encode_repeat;
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} IrdaCommonProtocolSpec;
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typedef enum {
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IrdaCommonDecoderStateWaitPreamble,
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IrdaCommonDecoderStateDecode,
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IrdaCommonDecoderStateProcessRepeat,
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} IrdaCommonStateDecoder;
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typedef enum {
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IrdaCommonEncoderStateSpace,
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IrdaCommonEncoderStatePreamble,
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IrdaCommonEncoderStateEncode,
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IrdaCommonEncoderStateEncodeRepeat,
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} IrdaCommonStateEncoder;
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struct IrdaCommonDecoder {
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const IrdaCommonProtocolSpec* protocol;
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IrdaCommonStateDecoder state;
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IrdaMessage message;
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uint32_t timings[6];
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uint8_t timings_cnt;
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void* context;
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bool switch_detect;
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uint32_t level;
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uint16_t databit_cnt;
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uint8_t data[];
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};
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struct IrdaCommonEncoder {
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const IrdaCommonProtocolSpec* protocol;
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IrdaCommonStateEncoder state;
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bool switch_detect;
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uint32_t bits_encoded;
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uint32_t timings_encoded;
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void* context;
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uint8_t data[];
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};
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static inline void shift_left_array(uint32_t *array, uint32_t len, uint32_t shift) {
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for (int i = 0; i < len; ++i)
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array[i] = array[i + shift];
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}
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IrdaMessage* irda_common_decode(IrdaCommonDecoder *decoder, bool level, uint32_t duration);
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IrdaStatus irda_common_decode_pdwm(IrdaCommonDecoder* decoder);
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IrdaStatus irda_common_decode_manchester(IrdaCommonDecoder* decoder);
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void irda_common_decoder_set_context(void* decoder, void* context);
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void* irda_common_decoder_alloc(const IrdaCommonProtocolSpec *protocol);
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void irda_common_decoder_free(void* decoder);
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void irda_common_decoder_reset(void* decoder);
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IrdaStatus irda_common_encode(IrdaCommonEncoder* encoder, uint32_t* duration, bool* polarity);
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IrdaStatus irda_common_encode_pdwm(IrdaCommonEncoder* encoder, uint32_t* duration, bool* polarity);
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IrdaStatus irda_common_encode_manchester(IrdaCommonEncoder* encoder, uint32_t* duration, bool* polarity);
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void irda_common_encoder_set_context(void* decoder, void* context);
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void* irda_common_encoder_alloc(const IrdaCommonProtocolSpec* protocol);
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void irda_common_encoder_free(IrdaCommonEncoder* encoder);
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void irda_common_encoder_reset(IrdaCommonEncoder* encoder);
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