unleashed-firmware/lib/infrared/encoder_decoder/sirc/infrared_protocol_sirc.h

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#pragma once
#include "../infrared_i.h"
/***************************************************************************************************
* Sony SIRC protocol description
* https://www.sbprojects.net/knowledge/ir/sirc.php
* http://picprojects.org.uk/
****************************************************************************************************
* Preamble Preamble Pulse Width Modulation Pause Entirely repeat
* mark space up to period message..
*
* 2400 600 12/15/20 bits (600,1200) ...45000 2400 600
* __________ _ _ _ _ _ _ _ _ _ _ _ _ _ __________ _ _
* ____ __________ _ _ _ __ __ __ _ _ __ __ _ _ ____________________ __________ _
* | command | address |
* SIRC | 7b LSB | 5b LSB |
* SIRC15 | 7b LSB | 8b LSB |
* SIRC20 | 7b LSB | 13b LSB |
*
* No way to determine either next message is repeat or not,
* so recognize only fact message received. Sony remotes always send at least 3 messages.
* Assume 8 last extended bits for SIRC20 are address bits.
***************************************************************************************************/
void* infrared_decoder_sirc_alloc(void);
void infrared_decoder_sirc_reset(void* decoder);
InfraredMessage* infrared_decoder_sirc_check_ready(void* decoder);
void infrared_decoder_sirc_free(void* decoder);
InfraredMessage* infrared_decoder_sirc_decode(void* decoder, bool level, uint32_t duration);
void* infrared_encoder_sirc_alloc(void);
void infrared_encoder_sirc_reset(void* encoder_ptr, const InfraredMessage* message);
void infrared_encoder_sirc_free(void* decoder);
InfraredStatus infrared_encoder_sirc_encode(void* encoder_ptr, uint32_t* duration, bool* polarity);
const InfraredProtocolVariant* infrared_protocol_sirc_get_variant(InfraredProtocol protocol);