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FIX GANG QI

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This commit is contained in:
MX
2025-02-20 04:39:28 +03:00
parent 1e3100e26e
commit cd94db3b91
2 changed files with 31 additions and 72 deletions
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68
lib/subghz/protocols/gangqi.c
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@@ -168,13 +168,14 @@ static void subghz_protocol_encoder_gangqi_get_upload(SubGhzProtocolEncoderGangQ
// Generate new key using custom or default button
instance->generic.btn = subghz_protocol_gangqi_get_btn_code();
uint64_t new_key = (instance->generic.data >> 14) << 14 | (instance->generic.btn << 10) |
(0b01 << 8);
uint16_t serial = (uint16_t)((instance->generic.data >> 18) & 0xFFFF);
uint8_t const_and_button = (uint8_t)(0xD0 | instance->generic.btn);
uint8_t serial_high = (uint8_t)(serial >> 8);
uint8_t serial_low = (uint8_t)(serial & 0xFF);
uint8_t bytesum = (uint8_t)(0xC8 - serial_high - serial_low - const_and_button);
uint8_t crc = -0xD7 - ((new_key >> 32) & 0xFF) - ((new_key >> 24) & 0xFF) -
((new_key >> 16) & 0xFF) - ((new_key >> 8) & 0xFF);
instance->generic.data = (new_key | crc);
instance->generic.data = (instance->generic.data >> 14) << 14 | (instance->generic.btn << 10) |
(bytesum << 2);
size_t index = 0;
@@ -230,41 +231,12 @@ static void subghz_protocol_gangqi_remote_controller(SubGhzBlockGeneric* instanc
subghz_custom_btn_set_max(3);
// GangQi Decoder
// 09.2024 - @xMasterX (MMX)
// 09.2024 - @xMasterX (MMX) (last update - bytesum calculation at 02.2025)
// Thanks @Skorpionm for support!
// Thanks @Drone1950 and @mishamyte (who spent 2 weeks on this) for making this work properly
//// 4D=F8=171=229 byte sum should be always the same
// Button
// Serial || BBBB || CRC (byte sum) with overflow and starting point 0xD7
//034AAB75BC = 00110100101010101011 01 1101 01 101111 00 // A (0xD)
//034AAB79B8 = 00110100101010101011 01 1110 01 101110 00 // B (0xE)
//034AAB6DC4 = 00110100101010101011 01 1011 01 110001 00 // C (0xB)
//034AAB5DD4 = 00110100101010101011 01 0111 01 110101 00 // D (0x7)
//034AAB55DC = 00110100101010101011 01 0101 01 110111 00 // Settings (0x5)
//034AAB51E0 = 00110100101010101011 01 0100 01 111000 00 // A (0x4)
//034AAB49E8 = 00110100101010101011 01 0010 01 111010 00 // C (0x2)
//034AAB59D8 = 00110100101010101011 01 0110 01 110110 00 // D (0x6)
//034AAB45EC = 00110100101010101011 01 0001 01 111011 00 // Settings exit (0x1)
//
// Serial 3 bytes should meet requirements see validation example at subghz_protocol_decoder_gangqi_get_string
//
// Code for finding start byte for crc sum
//
//uint64_t test = 0x034AAB79B8; //B8
//for(size_t byte = 0; byte < 0xFF; ++byte) {
// uint8_t crc_res = -byte - ((test >> 32) & 0xFF) - ((test >> 24) & 0xFF) -
// ((test >> 16) & 0xFF) - ((test >> 8) & 0xFF);
// if(crc_res == 0xB8) {
// uint64_t test2 = 0x034AAB6DC4; //C4
// uint8_t crc_res2 = -byte - ((test2 >> 32) & 0xFF) - ((test2 >> 24) & 0xFF) -
// ((test2 >> 16) & 0xFF) - ((test2 >> 8) & 0xFF);
// if(crc_res2 == 0xC4) {
// printf("Start byte for CRC = %02lX / CRC = %02X \n", byte, crc_res);
//
// printf("Testing second parcel CRC = %02X", crc_res2);
// }
// }
// }
// Example of correct bytesum calculation
// 0xC8 - serial_high - serial_low - constant_and_button
}
SubGhzProtocolStatus
@@ -483,23 +455,29 @@ void subghz_protocol_decoder_gangqi_get_string(void* context, FuriString* output
// Parse serial
subghz_protocol_gangqi_remote_controller(&instance->generic);
// Get CRC
uint8_t crc = -0xD7 - ((instance->generic.data >> 32) & 0xFF) -
((instance->generic.data >> 24) & 0xFF) -
((instance->generic.data >> 16) & 0xFF) - ((instance->generic.data >> 8) & 0xFF);
// Get byte sum
uint16_t serial = (uint16_t)((instance->generic.data >> 18) & 0xFFFF);
uint8_t const_and_button = (uint8_t)(0xD0 | instance->generic.btn);
uint8_t serial_high = (uint8_t)(serial >> 8);
uint8_t serial_low = (uint8_t)(serial & 0xFF);
// Type 1 is what original remotes use, type 2 is "backdoor" sum that receiver accepts too
uint8_t sum_type1 = (uint8_t)(0xC8 - serial_high - serial_low - const_and_button);
uint8_t sum_type2 = (uint8_t)(0x02 + serial_high + serial_low + const_and_button);
furi_string_cat_printf(
output,
"%s %db\r\n"
"Key: 0x%X%08lX\r\n"
"Serial: 0x%05lX CRC: 0x%02X\r\n"
"Serial: 0x%05lX\r\n"
"Sum: 0x%02X Sum2: 0x%02X\r\n"
"Btn: 0x%01X - %s\r\n",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint8_t)(instance->generic.data >> 32),
(uint32_t)(instance->generic.data & 0xFFFFFFFF),
instance->generic.serial,
crc,
sum_type1,
sum_type2,
instance->generic.btn,
subghz_protocol_gangqi_get_button_name(instance->generic.btn));
}