unleashed-firmware/lib/infrared/encoder_decoder/kaseikyo/infrared_encoder_kaseikyo.c
Samuel Stauffer aa2ecbe80f
infrared: add Kaseikyo IR protocol (#1965)
* infrared: add Kaseikyo IR protocol

Add Kaseikyo IR protocol support. This protocol is also called the Panasonic protocol and is used by a number of manufacturers including Denon.

The protocol includes a vendor field and a number of fields that are vendor specific. To support the format of address+command used by flipper the vendor+genre1+genre2+id fields are encoded into the address while the data is used for the command.

There are older versions of the protocol that used a reverse bit order that are not supported.

Protocol information:
- https://github.com/Arduino-IRremote/Arduino-IRremote/blob/master/src/ir_Kaseikyo.hpp
- http://www.hifi-remote.com/johnsfine/DecodeIR.html#Kaseikyo
- https://www.denon.com/-/media/files/documentmaster/denonna/avr-x3700h_avc-x3700h_ir_code_v01_04062020.doc

* Format and add unit test to Kaseikyo IR codec.

Co-authored-by: Georgii Surkov <37121527+gsurkov@users.noreply.github.com>
2022-11-07 18:38:04 +04:00

45 lines
1.6 KiB
C

#include <core/check.h>
#include "common/infrared_common_i.h"
#include <stdint.h>
#include "../infrared_i.h"
#include "infrared_protocol_defs_i.h"
#include <furi.h>
void infrared_encoder_kaseikyo_reset(void* encoder_ptr, const InfraredMessage* message) {
furi_assert(encoder_ptr);
InfraredCommonEncoder* encoder = encoder_ptr;
infrared_common_encoder_reset(encoder);
uint32_t address = message->address;
uint16_t command = message->command;
uint8_t id = (address >> 24) & 3;
uint16_t vendor_id = (address >> 8) & 0xffff;
uint8_t genre1 = (address >> 4) & 0xf;
uint8_t genre2 = address & 0xf;
encoder->data[0] = (uint8_t)(vendor_id & 0xff);
encoder->data[1] = (uint8_t)(vendor_id >> 8);
uint8_t vendor_parity = encoder->data[0] ^ encoder->data[1];
vendor_parity = (vendor_parity & 0xf) ^ (vendor_parity >> 4);
encoder->data[2] = (vendor_parity & 0xf) | (genre1 << 4);
encoder->data[3] = (genre2 & 0xf) | ((uint8_t)(command & 0xf) << 4);
encoder->data[4] = (id << 6) | (uint8_t)(command >> 4);
encoder->data[5] = encoder->data[2] ^ encoder->data[3] ^ encoder->data[4];
encoder->bits_to_encode = encoder->protocol->databit_len[0];
}
void* infrared_encoder_kaseikyo_alloc(void) {
return infrared_common_encoder_alloc(&protocol_kaseikyo);
}
void infrared_encoder_kaseikyo_free(void* encoder_ptr) {
infrared_common_encoder_free(encoder_ptr);
}
InfraredStatus
infrared_encoder_kaseikyo_encode(void* encoder_ptr, uint32_t* duration, bool* level) {
return infrared_common_encode(encoder_ptr, duration, level);
}