mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-24 11:43:09 +00:00
052237f8c9
* IR: Doxygen docs, some rename * Rename irda -> infrared * Rollback collateral renames Co-authored-by: あく <alleteam@gmail.com>
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
#include "infrared.h"
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <furi.h>
|
|
#include "../infrared_i.h"
|
|
#include "../infrared_protocol_defs_i.h"
|
|
|
|
typedef struct {
|
|
InfraredCommonDecoder* common_decoder;
|
|
bool toggle;
|
|
} InfraredRc5Decoder;
|
|
|
|
InfraredMessage* infrared_decoder_rc5_check_ready(void* ctx) {
|
|
InfraredRc5Decoder* decoder = ctx;
|
|
return infrared_common_decoder_check_ready(decoder->common_decoder);
|
|
}
|
|
|
|
bool infrared_decoder_rc5_interpret(InfraredCommonDecoder* decoder) {
|
|
furi_assert(decoder);
|
|
|
|
bool result = false;
|
|
uint32_t* data = (void*)&decoder->data[0];
|
|
/* Manchester (inverse):
|
|
* 0->1 : 1
|
|
* 1->0 : 0
|
|
*/
|
|
decoder->data[0] = ~decoder->data[0];
|
|
decoder->data[1] = ~decoder->data[1];
|
|
|
|
// MSB first
|
|
uint8_t address = reverse((uint8_t)decoder->data[0]) & 0x1F;
|
|
uint8_t command = (reverse((uint8_t)decoder->data[1]) >> 2) & 0x3F;
|
|
bool start_bit1 = *data & 0x01;
|
|
bool start_bit2 = *data & 0x02;
|
|
bool toggle = !!(*data & 0x04);
|
|
|
|
if(start_bit1 == 1) {
|
|
InfraredProtocol protocol = start_bit2 ? InfraredProtocolRC5 : InfraredProtocolRC5X;
|
|
InfraredMessage* message = &decoder->message;
|
|
InfraredRc5Decoder* rc5_decoder = decoder->context;
|
|
bool* prev_toggle = &rc5_decoder->toggle;
|
|
if((message->address == address) && (message->command == command) &&
|
|
(message->protocol == protocol)) {
|
|
message->repeat = (toggle == *prev_toggle);
|
|
} else {
|
|
message->repeat = false;
|
|
}
|
|
*prev_toggle = toggle;
|
|
message->command = command;
|
|
message->address = address;
|
|
message->protocol = protocol;
|
|
|
|
result = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void* infrared_decoder_rc5_alloc(void) {
|
|
InfraredRc5Decoder* decoder = malloc(sizeof(InfraredRc5Decoder));
|
|
decoder->toggle = false;
|
|
decoder->common_decoder = infrared_common_decoder_alloc(&protocol_rc5);
|
|
decoder->common_decoder->context = decoder;
|
|
return decoder;
|
|
}
|
|
|
|
InfraredMessage* infrared_decoder_rc5_decode(void* decoder, bool level, uint32_t duration) {
|
|
InfraredRc5Decoder* decoder_rc5 = decoder;
|
|
return infrared_common_decode(decoder_rc5->common_decoder, level, duration);
|
|
}
|
|
|
|
void infrared_decoder_rc5_free(void* decoder) {
|
|
InfraredRc5Decoder* decoder_rc5 = decoder;
|
|
infrared_common_decoder_free(decoder_rc5->common_decoder);
|
|
free(decoder_rc5);
|
|
}
|
|
|
|
void infrared_decoder_rc5_reset(void* decoder) {
|
|
InfraredRc5Decoder* decoder_rc5 = decoder;
|
|
infrared_common_decoder_reset(decoder_rc5->common_decoder);
|
|
}
|