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subghz overflow experimental mode

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MX
2025-10-21 01:32:02 +03:00
parent bd02e2f53c
commit a1c8dfb61b
12 changed files with 199 additions and 70 deletions
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25
lib/subghz/protocols/alutech_at_4n.c
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@@ -273,14 +273,27 @@ static bool subghz_protocol_alutech_at_4n_gen_data(
instance->generic.serial = (uint32_t)(data >> 24) & 0xFFFFFFFF;
}
if(instance->generic.cnt < 0xFFFF) {
if((instance->generic.cnt + furi_hal_subghz_get_rolling_counter_mult()) > 0xFFFF) {
// Check for OFEX (overflow experimental) mode
if(furi_hal_subghz_get_rolling_counter_mult() != 0xFFFE) {
if(instance->generic.cnt < 0xFFFF) {
if((instance->generic.cnt + furi_hal_subghz_get_rolling_counter_mult()) > 0xFFFF) {
instance->generic.cnt = 0;
} else {
instance->generic.cnt += furi_hal_subghz_get_rolling_counter_mult();
}
} else if(
(instance->generic.cnt >= 0xFFFF) &&
(furi_hal_subghz_get_rolling_counter_mult() != 0)) {
instance->generic.cnt = 0;
} else {
instance->generic.cnt += furi_hal_subghz_get_rolling_counter_mult();
}
} else if((instance->generic.cnt >= 0xFFFF) && (furi_hal_subghz_get_rolling_counter_mult() != 0)) {
instance->generic.cnt = 0;
} else {
if((instance->generic.cnt + 0x1) > 0xFFFF) {
instance->generic.cnt = 0;
} else if(instance->generic.cnt >= 0x1 && instance->generic.cnt != 0xFFFE) {
instance->generic.cnt = furi_hal_subghz_get_rolling_counter_mult();
} else {
instance->generic.cnt++;
}
}
crc = subghz_protocol_alutech_at_4n_decrypt_data_crc((uint8_t)(instance->generic.cnt & 0xFF));
data = (uint64_t)crc << 56 | (uint64_t)instance->generic.serial << 24 |