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[FL-1800] IRDA: enc/decoder refactoring, Add NEC42 (#705)

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* WIP: IRDA: multilen protocol refactoring, NEC42
* IRDA: Refactoring encoder/decoder

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Albert Kharisov
2021-09-15 20:22:58 +03:00
committed by GitHub
parent 4768177cf5
commit 4f233ff0a3
21 changed files with 551 additions and 437 deletions
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48
lib/irda/encoder_decoder/nec/irda_decoder_nec.c
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@@ -1,3 +1,4 @@
#include "common/irda_common_i.h"
#include "irda.h"
#include "irda_protocol_defs_i.h"
#include <stdbool.h>
@@ -6,26 +7,55 @@
#include "../irda_i.h"
IrdaMessage* irda_decoder_nec_check_ready(void* ctx) {
return irda_common_decoder_check_ready(ctx);
}
bool irda_decoder_nec_interpret(IrdaCommonDecoder* decoder) {
furi_assert(decoder);
bool result = false;
uint8_t address = decoder->data[0];
uint8_t address_inverse = decoder->data[1];
uint8_t command = decoder->data[2];
uint8_t command_inverse = decoder->data[3];
if (command == (uint8_t) ~command_inverse) {
if (address == (uint8_t) ~address_inverse) {
if (decoder->databit_cnt == 32) {
uint8_t address = decoder->data[0];
uint8_t address_inverse = decoder->data[1];
uint8_t command = decoder->data[2];
uint8_t command_inverse = decoder->data[3];
if ((command == (uint8_t) ~command_inverse) && (address == (uint8_t) ~address_inverse)) {
decoder->message.protocol = IrdaProtocolNEC;
decoder->message.address = address;
decoder->message.command = command;
decoder->message.repeat = false;
result = true;
} else {
decoder->message.protocol = IrdaProtocolNECext;
decoder->message.address = decoder->data[0] | (decoder->data[1] << 8);
decoder->message.command = decoder->data[2] | (decoder->data[3] << 8);
decoder->message.repeat = false;
result = true;
}
} else if (decoder->databit_cnt == 42) {
uint32_t* data1 = (void*) decoder->data;
uint16_t* data2 = (void*) (data1 + 1);
uint16_t address = *data1 & 0x1FFF;
uint16_t address_inverse = (*data1 >> 13) & 0x1FFF;
uint16_t command = ((*data1 >> 26) & 0x3F) | ((*data2 & 0x3) << 6);
uint16_t command_inverse = (*data2 >> 2) & 0xFF;
if ((address == (~address_inverse & 0x1FFF))
&& (command == (~command_inverse & 0xFF))) {
decoder->message.protocol = IrdaProtocolNEC42;
decoder->message.address = address;
decoder->message.command = command;
decoder->message.repeat = false;
result = true;
} else {
decoder->message.protocol = IrdaProtocolNEC42ext;
decoder->message.address = address | (address_inverse << 13);
decoder->message.command = command | (command_inverse << 8);
decoder->message.repeat = false;
result = true;
}
decoder->message.command = command;
decoder->message.repeat = false;
result = true;
}
return result;