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SubGhz: fix variable types and CC1101 GPIO initialization optimization (#1931)

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* SubGhz: fix variable types
* SubGhz: CC1101 GPIO initialization optimization
* SubGhz: return back gpio init
* SubGhz: cleanup grammar in math and format doxygen comments

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Skorpionm 2022-10-26 23:40:13 +04:00 committed by GitHub
parent ebaa84b0c2
commit aff99a72e8
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 235 additions and 200 deletions
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2
applications/main/subghz/subghz_i.c
View File

@ -102,8 +102,8 @@ static bool subghz_tx(SubGhz* subghz, uint32_t frequency) {
furi_assert(subghz->txrx->txrx_state != SubGhzTxRxStateSleep);
furi_hal_subghz_idle();
furi_hal_subghz_set_frequency_and_path(frequency);
furi_hal_gpio_write(&gpio_cc1101_g0, false);
furi_hal_gpio_init(&gpio_cc1101_g0, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
furi_hal_gpio_write(&gpio_cc1101_g0, true);
bool ret = furi_hal_subghz_tx();
subghz->txrx->txrx_state = SubGhzTxRxStateTx;
return ret;

25
firmware/targets/f7/api_symbols.csv
View File

@ -1,5 +1,5 @@
entry,status,name,type,params
Version,+,5.1,,
Version,+,6.0,,
Header,+,applications/services/bt/bt_service/bt.h,,
Header,+,applications/services/cli/cli.h,,
Header,+,applications/services/cli/cli_vcp.h,,
@ -2272,21 +2272,22 @@ Function,-,subghz_keystore_raw_get_data,_Bool,"const char*, size_t, uint8_t*, si
Function,-,subghz_keystore_save,_Bool,"SubGhzKeystore*, const char*, uint8_t*"
Function,+,subghz_protocol_blocks_add_bit,void,"SubGhzBlockDecoder*, uint8_t"
Function,+,subghz_protocol_blocks_add_bytes,uint8_t,"const uint8_t[], size_t"
Function,+,subghz_protocol_blocks_crc16,uint16_t,"const uint8_t[], unsigned, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_crc16lsb,uint16_t,"const uint8_t[], unsigned, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_crc4,uint8_t,"const uint8_t[], unsigned, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc7,uint8_t,"const uint8_t[], unsigned, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc8,uint8_t,"const uint8_t[], unsigned, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc8le,uint8_t,"const uint8_t[], unsigned, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_add_to_128_bit,void,"SubGhzBlockDecoder*, uint8_t, uint64_t*"
Function,+,subghz_protocol_blocks_crc16,uint16_t,"const uint8_t[], size_t, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_crc16lsb,uint16_t,"const uint8_t[], size_t, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_crc4,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc7,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc8,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_crc8le,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_get_bit_array,_Bool,"uint8_t[], size_t"
Function,+,subghz_protocol_blocks_get_hash_data,uint8_t,"SubGhzBlockDecoder*, size_t"
Function,+,subghz_protocol_blocks_get_parity,uint8_t,"uint64_t, uint8_t"
Function,+,subghz_protocol_blocks_get_upload,size_t,"uint8_t[], size_t, LevelDuration*, size_t, uint32_t"
Function,+,subghz_protocol_blocks_lfsr_digest16,uint16_t,"const uint8_t[], unsigned, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_lfsr_digest8,uint8_t,"const uint8_t[], unsigned, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_lfsr_digest8_reflect,uint8_t,"const uint8_t[], int, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_parity8,int,uint8_t
Function,+,subghz_protocol_blocks_parity_bytes,int,"const uint8_t[], size_t"
Function,+,subghz_protocol_blocks_lfsr_digest16,uint16_t,"const uint8_t[], size_t, uint16_t, uint16_t"
Function,+,subghz_protocol_blocks_lfsr_digest8,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_lfsr_digest8_reflect,uint8_t,"const uint8_t[], size_t, uint8_t, uint8_t"
Function,+,subghz_protocol_blocks_parity8,uint8_t,uint8_t
Function,+,subghz_protocol_blocks_parity_bytes,uint8_t,"const uint8_t[], size_t"
Function,+,subghz_protocol_blocks_reverse_key,uint64_t,"uint64_t, uint8_t"
Function,+,subghz_protocol_blocks_set_bit_array,void,"_Bool, uint8_t[], size_t, size_t"
Function,+,subghz_protocol_blocks_xor_bytes,uint8_t,"const uint8_t[], size_t"

1 entry status name type params
2 Version + 5.1 6.0
3 Header + applications/services/bt/bt_service/bt.h
4 Header + applications/services/cli/cli.h
5 Header + applications/services/cli/cli_vcp.h
2272 Function - subghz_keystore_save _Bool SubGhzKeystore*, const char*, uint8_t*
2273 Function + subghz_protocol_blocks_add_bit void SubGhzBlockDecoder*, uint8_t
2274 Function + subghz_protocol_blocks_add_bytes uint8_t const uint8_t[], size_t
2275 Function + subghz_protocol_blocks_crc16 subghz_protocol_blocks_add_to_128_bit uint16_t void const uint8_t[], unsigned, uint16_t, uint16_t SubGhzBlockDecoder*, uint8_t, uint64_t*
2276 Function + subghz_protocol_blocks_crc16lsb subghz_protocol_blocks_crc16 uint16_t const uint8_t[], unsigned, uint16_t, uint16_t const uint8_t[], size_t, uint16_t, uint16_t
2277 Function + subghz_protocol_blocks_crc4 subghz_protocol_blocks_crc16lsb uint8_t uint16_t const uint8_t[], unsigned, uint8_t, uint8_t const uint8_t[], size_t, uint16_t, uint16_t
2278 Function + subghz_protocol_blocks_crc7 subghz_protocol_blocks_crc4 uint8_t const uint8_t[], unsigned, uint8_t, uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2279 Function + subghz_protocol_blocks_crc8 subghz_protocol_blocks_crc7 uint8_t const uint8_t[], unsigned, uint8_t, uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2280 Function + subghz_protocol_blocks_crc8le subghz_protocol_blocks_crc8 uint8_t const uint8_t[], unsigned, uint8_t, uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2281 Function + subghz_protocol_blocks_crc8le uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2282 Function + subghz_protocol_blocks_get_bit_array _Bool uint8_t[], size_t
2283 Function + subghz_protocol_blocks_get_hash_data uint8_t SubGhzBlockDecoder*, size_t
2284 Function + subghz_protocol_blocks_get_parity uint8_t uint64_t, uint8_t
2285 Function + subghz_protocol_blocks_get_upload size_t uint8_t[], size_t, LevelDuration*, size_t, uint32_t
2286 Function + subghz_protocol_blocks_lfsr_digest16 uint16_t const uint8_t[], unsigned, uint16_t, uint16_t const uint8_t[], size_t, uint16_t, uint16_t
2287 Function + subghz_protocol_blocks_lfsr_digest8 uint8_t const uint8_t[], unsigned, uint8_t, uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2288 Function + subghz_protocol_blocks_lfsr_digest8_reflect uint8_t const uint8_t[], int, uint8_t, uint8_t const uint8_t[], size_t, uint8_t, uint8_t
2289 Function + subghz_protocol_blocks_parity8 int uint8_t uint8_t
2290 Function + subghz_protocol_blocks_parity_bytes int uint8_t const uint8_t[], size_t
2291 Function + subghz_protocol_blocks_reverse_key uint64_t uint64_t, uint8_t
2292 Function + subghz_protocol_blocks_set_bit_array void _Bool, uint8_t[], size_t, size_t
2293 Function + subghz_protocol_blocks_xor_bytes uint8_t const uint8_t[], size_t

10
lib/subghz/blocks/decoder.c
View File

@ -7,6 +7,16 @@ void subghz_protocol_blocks_add_bit(SubGhzBlockDecoder* decoder, uint8_t bit) {
decoder->decode_count_bit++;
}
void subghz_protocol_blocks_add_to_128_bit(
SubGhzBlockDecoder* decoder,
uint8_t bit,
uint64_t* head_64_bit) {
if(++decoder->decode_count_bit > 64) {
(*head_64_bit) = ((*head_64_bit) << 1) | (decoder->decode_data >> 63);
}
decoder->decode_data = decoder->decode_data << 1 | bit;
}
uint8_t subghz_protocol_blocks_get_hash_data(SubGhzBlockDecoder* decoder, size_t len) {
uint8_t hash = 0;
uint8_t* p = (uint8_t*)&decoder->decode_data;

11
lib/subghz/blocks/decoder.h
View File

@ -24,6 +24,17 @@ struct SubGhzBlockDecoder {
*/
void subghz_protocol_blocks_add_bit(SubGhzBlockDecoder* decoder, uint8_t bit);
/**
* Add data to_128 bit when decoding.
* @param decoder Pointer to a SubGhzBlockDecoder instance
* @param head_64_bit Pointer to a head_64_bit
* @param bit data, 1bit
*/
void subghz_protocol_blocks_add_to_128_bit(
SubGhzBlockDecoder* decoder,
uint8_t bit,
uint64_t* head_64_bit);
/**
* Getting the hash sum of the last randomly received parcel.
* @param decoder Pointer to a SubGhzBlockDecoder instance

115
lib/subghz/blocks/math.c
View File

@ -1,16 +1,16 @@
#include "math.h"
uint64_t subghz_protocol_blocks_reverse_key(uint64_t key, uint8_t count_bit) {
uint64_t key_reverse = 0;
for(uint8_t i = 0; i < count_bit; i++) {
key_reverse = key_reverse << 1 | bit_read(key, i);
uint64_t subghz_protocol_blocks_reverse_key(uint64_t key, uint8_t bit_count) {
uint64_t reverse_key = 0;
for(uint8_t i = 0; i < bit_count; i++) {
reverse_key = reverse_key << 1 | bit_read(key, i);
}
return key_reverse;
return reverse_key;
}
uint8_t subghz_protocol_blocks_get_parity(uint64_t key, uint8_t count_bit) {
uint8_t subghz_protocol_blocks_get_parity(uint64_t key, uint8_t bit_count) {
uint8_t parity = 0;
for(uint8_t i = 0; i < count_bit; i++) {
for(uint8_t i = 0; i < bit_count; i++) {
parity += bit_read(key, i);
}
return parity & 0x01;
@ -18,14 +18,14 @@ uint8_t subghz_protocol_blocks_get_parity(uint64_t key, uint8_t count_bit) {
uint8_t subghz_protocol_blocks_crc4(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init) {
unsigned remainder = init << 4; // LSBs are unused
unsigned poly = polynomial << 4;
unsigned bit;
uint8_t remainder = init << 4; // LSBs are unused
uint8_t poly = polynomial << 4;
uint8_t bit;
while(nBytes--) {
while(size--) {
remainder ^= *message++;
for(bit = 0; bit < 8; bit++) {
if(remainder & 0x80) {
@ -40,16 +40,15 @@ uint8_t subghz_protocol_blocks_crc4(
uint8_t subghz_protocol_blocks_crc7(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init) {
unsigned remainder = init << 1; // LSB is unused
unsigned poly = polynomial << 1;
unsigned byte, bit;
uint8_t remainder = init << 1; // LSB is unused
uint8_t poly = polynomial << 1;
for(byte = 0; byte < nBytes; ++byte) {
for(size_t byte = 0; byte < size; ++byte) {
remainder ^= message[byte];
for(bit = 0; bit < 8; ++bit) {
for(uint8_t bit = 0; bit < 8; ++bit) {
if(remainder & 0x80) {
remainder = (remainder << 1) ^ poly;
} else {
@ -62,15 +61,14 @@ uint8_t subghz_protocol_blocks_crc7(
uint8_t subghz_protocol_blocks_crc8(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init) {
uint8_t remainder = init;
unsigned byte, bit;
for(byte = 0; byte < nBytes; ++byte) {
for(size_t byte = 0; byte < size; ++byte) {
remainder ^= message[byte];
for(bit = 0; bit < 8; ++bit) {
for(uint8_t bit = 0; bit < 8; ++bit) {
if(remainder & 0x80) {
remainder = (remainder << 1) ^ polynomial;
} else {
@ -83,16 +81,15 @@ uint8_t subghz_protocol_blocks_crc8(
uint8_t subghz_protocol_blocks_crc8le(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init) {
uint8_t remainder = subghz_protocol_blocks_reverse_key(init, 8);
unsigned byte, bit;
polynomial = subghz_protocol_blocks_reverse_key(polynomial, 8);
for(byte = 0; byte < nBytes; ++byte) {
for(size_t byte = 0; byte < size; ++byte) {
remainder ^= message[byte];
for(bit = 0; bit < 8; ++bit) {
for(uint8_t bit = 0; bit < 8; ++bit) {
if(remainder & 1) {
remainder = (remainder >> 1) ^ polynomial;
} else {
@ -105,15 +102,14 @@ uint8_t subghz_protocol_blocks_crc8le(
uint16_t subghz_protocol_blocks_crc16lsb(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint16_t polynomial,
uint16_t init) {
uint16_t remainder = init;
unsigned byte, bit;
for(byte = 0; byte < nBytes; ++byte) {
for(size_t byte = 0; byte < size; ++byte) {
remainder ^= message[byte];
for(bit = 0; bit < 8; ++bit) {
for(uint8_t bit = 0; bit < 8; ++bit) {
if(remainder & 1) {
remainder = (remainder >> 1) ^ polynomial;
} else {
@ -126,15 +122,14 @@ uint16_t subghz_protocol_blocks_crc16lsb(
uint16_t subghz_protocol_blocks_crc16(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint16_t polynomial,
uint16_t init) {
uint16_t remainder = init;
unsigned byte, bit;
for(byte = 0; byte < nBytes; ++byte) {
for(size_t byte = 0; byte < size; ++byte) {
remainder ^= message[byte] << 8;
for(bit = 0; bit < 8; ++bit) {
for(uint8_t bit = 0; bit < 8; ++bit) {
if(remainder & 0x8000) {
remainder = (remainder << 1) ^ polynomial;
} else {
@ -147,18 +142,18 @@ uint16_t subghz_protocol_blocks_crc16(
uint8_t subghz_protocol_blocks_lfsr_digest8(
uint8_t const message[],
unsigned bytes,
size_t size,
uint8_t gen,
uint8_t key) {
uint8_t sum = 0;
for(unsigned k = 0; k < bytes; ++k) {
uint8_t data = message[k];
for(size_t byte = 0; byte < size; ++byte) {
uint8_t data = message[byte];
for(int i = 7; i >= 0; --i) {
// XOR key into sum if data bit is set
if((data >> i) & 1) sum ^= key;
// roll the key right (actually the lsb is dropped here)
// and apply the gen (needs to include the dropped lsb as msb)
// roll the key right (actually the LSB is dropped here)
// and apply the gen (needs to include the dropped LSB as MSB)
if(key & 1)
key = (key >> 1) ^ gen;
else
@ -170,22 +165,22 @@ uint8_t subghz_protocol_blocks_lfsr_digest8(
uint8_t subghz_protocol_blocks_lfsr_digest8_reflect(
uint8_t const message[],
int bytes,
size_t size,
uint8_t gen,
uint8_t key) {
uint8_t sum = 0;
// Process message from last byte to first byte (reflected)
for(int k = bytes - 1; k >= 0; --k) {
uint8_t data = message[k];
for(int byte = size - 1; byte >= 0; --byte) {
uint8_t data = message[byte];
// Process individual bits of each byte (reflected)
for(int i = 0; i < 8; ++i) {
for(uint8_t i = 0; i < 8; ++i) {
// XOR key into sum if data bit is set
if((data >> i) & 1) {
sum ^= key;
}
// roll the key left (actually the lsb is dropped here)
// and apply the gen (needs to include the dropped lsb as msb)
// roll the key left (actually the LSB is dropped here)
// and apply the gen (needs to include the dropped lsb as MSB)
if(key & 0x80)
key = (key << 1) ^ gen;
else
@ -197,18 +192,18 @@ uint8_t subghz_protocol_blocks_lfsr_digest8_reflect(
uint16_t subghz_protocol_blocks_lfsr_digest16(
uint8_t const message[],
unsigned bytes,
size_t size,
uint16_t gen,
uint16_t key) {
uint16_t sum = 0;
for(unsigned k = 0; k < bytes; ++k) {
uint8_t data = message[k];
for(int i = 7; i >= 0; --i) {
for(size_t byte = 0; byte < size; ++byte) {
uint8_t data = message[byte];
for(int8_t i = 7; i >= 0; --i) {
// if data bit is set then xor with key
if((data >> i) & 1) sum ^= key;
// roll the key right (actually the lsb is dropped here)
// and apply the gen (needs to include the dropped lsb as msb)
// roll the key right (actually the LSB is dropped here)
// and apply the gen (needs to include the dropped LSB as MSB)
if(key & 1)
key = (key >> 1) ^ gen;
else
@ -218,31 +213,31 @@ uint16_t subghz_protocol_blocks_lfsr_digest16(
return sum;
}
uint8_t subghz_protocol_blocks_add_bytes(uint8_t const message[], size_t num_bytes) {
int result = 0;
for(size_t i = 0; i < num_bytes; ++i) {
uint8_t subghz_protocol_blocks_add_bytes(uint8_t const message[], size_t size) {
uint32_t result = 0;
for(size_t i = 0; i < size; ++i) {
result += message[i];
}
return (uint8_t)result;
}
int subghz_protocol_blocks_parity8(uint8_t byte) {
uint8_t subghz_protocol_blocks_parity8(uint8_t byte) {
byte ^= byte >> 4;
byte &= 0xf;
return (0x6996 >> byte) & 1;
}
int subghz_protocol_blocks_parity_bytes(uint8_t const message[], size_t num_bytes) {
int result = 0;
for(size_t i = 0; i < num_bytes; ++i) {
uint8_t subghz_protocol_blocks_parity_bytes(uint8_t const message[], size_t size) {
uint8_t result = 0;
for(size_t i = 0; i < size; ++i) {
result ^= subghz_protocol_blocks_parity8(message[i]);
}
return result;
}
uint8_t subghz_protocol_blocks_xor_bytes(uint8_t const message[], size_t num_bytes) {
uint8_t subghz_protocol_blocks_xor_bytes(uint8_t const message[], size_t size) {
uint8_t result = 0;
for(size_t i = 0; i < num_bytes; ++i) {
for(size_t i = 0; i < size; ++i) {
result ^= message[i];
}
return result;

272
lib/subghz/blocks/math.h
View File

@ -14,183 +14,201 @@
#ifdef __cplusplus
extern "C" {
#endif
/**
* Flip the data bitwise.
* @param key In data
* @param count_bit number of data bits
* @return Reverse data
**/
uint64_t subghz_protocol_blocks_reverse_key(uint64_t key, uint8_t count_bit);
/**
* Get parity the data bitwise.
* @param key In data
* @param count_bit number of data bits
* @return parity
**/
uint8_t subghz_protocol_blocks_get_parity(uint64_t key, uint8_t count_bit);
/** Flip the data bitwise
*
* @param key In data
* @param bit_count number of data bits
*
* @return Reverse data
*/
uint64_t subghz_protocol_blocks_reverse_key(uint64_t key, uint8_t bit_count);
/**
* CRC-4.
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
* @return CRC value
**/
/** Get parity the data bitwise
*
* @param key In data
* @param bit_count number of data bits
*
* @return parity
*/
uint8_t subghz_protocol_blocks_get_parity(uint64_t key, uint8_t bit_count);
/** CRC-4
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
*
* @return CRC value
*/
uint8_t subghz_protocol_blocks_crc4(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init);
/**
* CRC-7.
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
* @return CRC value
**/
/** CRC-7
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
*
* @return CRC value
*/
uint8_t subghz_protocol_blocks_crc7(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init);
/**
* Generic Cyclic Redundancy Check CRC-8.
* Example polynomial: 0x31 = x8 + x5 + x4 + 1 (x8 is implicit)
* Example polynomial: 0x80 = x8 + x7 (a normal bit-by-bit parity XOR)
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial byte is from x^7 to x^0 (x^8 is implicitly one)
* @param init starting crc value
* @return CRC value
**/
/** Generic Cyclic Redundancy Check CRC-8. Example polynomial: 0x31 = x8 + x5 +
* x4 + 1 (x8 is implicit) Example polynomial: 0x80 = x8 + x7 (a normal
* bit-by-bit parity XOR)
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial byte is from x^7 to x^0 (x^8 is implicitly one)
* @param init starting crc value
*
* @return CRC value
*/
uint8_t subghz_protocol_blocks_crc8(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init);
/**
* "Little-endian" Cyclic Redundancy Check CRC-8 LE
* Input and output are reflected, i.e. least significant bit is shifted in first.
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
* @return CRC value
**/
/** "Little-endian" Cyclic Redundancy Check CRC-8 LE Input and output are
* reflected, i.e. least significant bit is shifted in first
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
*
* @return CRC value
*/
uint8_t subghz_protocol_blocks_crc8le(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint8_t polynomial,
uint8_t init);
/**
* CRC-16 LSB.
* Input and output are reflected, i.e. least significant bit is shifted in first.
* Note that poly and init already need to be reflected.
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
* @return CRC value
**/
/** CRC-16 LSB. Input and output are reflected, i.e. least significant bit is
* shifted in first. Note that poly and init already need to be reflected
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
*
* @return CRC value
*/
uint16_t subghz_protocol_blocks_crc16lsb(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint16_t polynomial,
uint16_t init);
/**
* CRC-16.
* @param message array of bytes to check
* @param nBytes number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
* @return CRC value
**/
/** CRC-16
*
* @param message array of bytes to check
* @param size number of bytes in message
* @param polynomial CRC polynomial
* @param init starting crc value
*
* @return CRC value
*/
uint16_t subghz_protocol_blocks_crc16(
uint8_t const message[],
unsigned nBytes,
size_t size,
uint16_t polynomial,
uint16_t init);
/**
* Digest-8 by "LFSR-based Toeplitz hash".
* @param message bytes of message data
* @param bytes number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the LFSR is rolling
* @param key initial key
* @return digest value
**/
/** Digest-8 by "LFSR-based Toeplitz hash"
*
* @param message bytes of message data
* @param size number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the
* LFSR is rolling
* @param key initial key
*
* @return digest value
*/
uint8_t subghz_protocol_blocks_lfsr_digest8(
uint8_t const message[],
unsigned bytes,
size_t size,
uint8_t gen,
uint8_t key);
/**
* Digest-8 by "LFSR-based Toeplitz hash", byte reflect, bit reflect.
* @param message bytes of message data
* @param bytes number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the LFSR is rolling
* @param key initial key
* @return digest value
**/
/** Digest-8 by "LFSR-based Toeplitz hash", byte reflect, bit reflect
*
* @param message bytes of message data
* @param size number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the
* LFSR is rolling
* @param key initial key
*
* @return digest value
*/
uint8_t subghz_protocol_blocks_lfsr_digest8_reflect(
uint8_t const message[],
int bytes,
size_t size,
uint8_t gen,
uint8_t key);
/**
* Digest-16 by "LFSR-based Toeplitz hash".
* @param message bytes of message data
* @param bytes number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the LFSR is rolling
* @param key initial key
* @return digest value
**/
/** Digest-16 by "LFSR-based Toeplitz hash"
*
* @param message bytes of message data
* @param size number of bytes to digest
* @param gen key stream generator, needs to includes the MSB if the
* LFSR is rolling
* @param key initial key
*
* @return digest value
*/
uint16_t subghz_protocol_blocks_lfsr_digest16(
uint8_t const message[],
unsigned bytes,
size_t size,
uint16_t gen,
uint16_t key);
/**
* Compute Addition of a number of bytes.
* @param message bytes of message data
* @param num_bytes number of bytes to sum
* @return summation value
**/
uint8_t subghz_protocol_blocks_add_bytes(uint8_t const message[], size_t num_bytes);
/** Compute Addition of a number of bytes
*
* @param message bytes of message data
* @param size number of bytes to sum
*
* @return summation value
*/
uint8_t subghz_protocol_blocks_add_bytes(uint8_t const message[], size_t size);
/**
* Compute bit parity of a single byte (8 bits).
* @param byte single byte to check
* @return 1 odd parity, 0 even parity
**/
int subghz_protocol_blocks_parity8(uint8_t byte);
/** Compute bit parity of a single byte (8 bits)
*
* @param byte single byte to check
*
* @return 1 odd parity, 0 even parity
*/
uint8_t subghz_protocol_blocks_parity8(uint8_t byte);
/**
* Compute bit parity of a number of bytes.
* @param message bytes of message data
* @param num_bytes number of bytes to sum
* @return 1 odd parity, 0 even parity
**/
int subghz_protocol_blocks_parity_bytes(uint8_t const message[], size_t num_bytes);
/** Compute bit parity of a number of bytes
*
* @param message bytes of message data
* @param size number of bytes to sum
*
* @return 1 odd parity, 0 even parity
*/
uint8_t subghz_protocol_blocks_parity_bytes(uint8_t const message[], size_t size);
/**
* Compute XOR (byte-wide parity) of a number of bytes.
* @param message bytes of message data
* @param num_bytes number of bytes to sum
* @return summation value, per bit-position 1 odd parity, 0 even parity
**/
uint8_t subghz_protocol_blocks_xor_bytes(uint8_t const message[], size_t num_bytes);
/** Compute XOR (byte-wide parity) of a number of bytes
*
* @param message bytes of message data
* @param size number of bytes to sum
*
* @return summation value, per bit-position 1 odd parity, 0 even parity
*/
uint8_t subghz_protocol_blocks_xor_bytes(uint8_t const message[], size_t size);
#ifdef __cplusplus
}