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Refactor the concatbits function to support both MSB and LSB first src

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douniwan5788 2025-03-15 03:54:52 +08:00
commit d13e7b0b64
5 changed files with 41 additions and 32 deletions
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42
armsrc/hitagS.c
View file

@ -419,7 +419,7 @@ static void hts_init_clock(void) {
static int check_select(const uint8_t *rx, uint32_t uid) { static int check_select(const uint8_t *rx, uint32_t uid) {
// global var? // global var?
concatbits((uint8_t *)&reader_selected_uid, 0, rx, 5, 32); concatbits((uint8_t *)&reader_selected_uid, 0, rx, 5, 32, false);
reader_selected_uid = BSWAP_32(reader_selected_uid); reader_selected_uid = BSWAP_32(reader_selected_uid);
if (reader_selected_uid == uid) { if (reader_selected_uid == uid) {
@ -1090,7 +1090,7 @@ static int hts_select_tag(const lf_hitag_data_t *packet, uint8_t *tx, size_t siz
protocol_mode = packet->mode; protocol_mode = packet->mode;
uint8_t cmd = protocol_mode; uint8_t cmd = protocol_mode;
txlen = concatbits(tx, txlen, &cmd, 0, 5); txlen = concatbits(tx, txlen, &cmd, 0, 5, false);
hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, t_wait, ledcontrol, true); hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, t_wait, ledcontrol, true);
if (rxlen != 32) { if (rxlen != 32) {
@ -1105,10 +1105,10 @@ static int hts_select_tag(const lf_hitag_data_t *packet, uint8_t *tx, size_t siz
// select uid // select uid
txlen = 0; txlen = 0;
cmd = HITAGS_SELECT; cmd = HITAGS_SELECT;
txlen = concatbits(tx, txlen, &cmd, 0, 5); txlen = concatbits(tx, txlen, &cmd, 0, 5, false);
txlen = concatbits(tx, txlen, rx, 0, 32); txlen = concatbits(tx, txlen, rx, 0, 32, false);
uint8_t crc = CRC8Hitag1Bits(tx, txlen); uint8_t crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false); hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false);
@ -1140,8 +1140,8 @@ static int hts_select_tag(const lf_hitag_data_t *packet, uint8_t *tx, size_t siz
} }
txlen = 0; txlen = 0;
txlen = concatbits(tx, txlen, rnd, 0, 32); txlen = concatbits(tx, txlen, rnd, 0, 32, false);
txlen = concatbits(tx, txlen, auth_ks, 0, 32); txlen = concatbits(tx, txlen, auth_ks, 0, 32, false);
DBG DbpString("Authenticating using key:"); DBG DbpString("Authenticating using key:");
DBG Dbhexdump(6, packet->key, false); DBG Dbhexdump(6, packet->key, false);
@ -1173,13 +1173,13 @@ static int hts_select_tag(const lf_hitag_data_t *packet, uint8_t *tx, size_t siz
// send write page request // send write page request
txlen = 0; txlen = 0;
cmd = HITAGS_WRITE_PAGE; cmd = HITAGS_WRITE_PAGE;
txlen = concatbits(tx, txlen, &cmd, 0, 4); txlen = concatbits(tx, txlen, &cmd, 0, 4, false);
uint8_t addr = 64; uint8_t addr = 64;
txlen = concatbits(tx, txlen, &addr, 0, 8); txlen = concatbits(tx, txlen, &addr, 0, 8, false);
crc = CRC8Hitag1Bits(tx, txlen); crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false); hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false);
@ -1189,9 +1189,9 @@ static int hts_select_tag(const lf_hitag_data_t *packet, uint8_t *tx, size_t siz
} }
txlen = 0; txlen = 0;
txlen = concatbits(tx, txlen, packet->pwd, 0, 32); txlen = concatbits(tx, txlen, packet->pwd, 0, 32, false);
crc = CRC8Hitag1Bits(tx, txlen); crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false); hts_send_receive(tx, txlen, rx, sizeofrx, &rxlen, HITAG_T_WAIT_SC, ledcontrol, false);
@ -1287,11 +1287,11 @@ void hts_read(const lf_hitag_data_t *payload, bool ledcontrol) {
//send read request //send read request
size_t txlen = 0; size_t txlen = 0;
uint8_t cmd = HITAGS_READ_PAGE; uint8_t cmd = HITAGS_READ_PAGE;
txlen = concatbits(tx, txlen, &cmd, 0, 4); txlen = concatbits(tx, txlen, &cmd, 0, 4, false);
uint8_t addr = page_addr; uint8_t addr = page_addr;
txlen = concatbits(tx, txlen, &addr, 0, 8); txlen = concatbits(tx, txlen, &addr, 0, 8, false);
uint8_t crc = CRC8Hitag1Bits(tx, txlen); uint8_t crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_SC, ledcontrol, false); hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_SC, ledcontrol, false);
@ -1396,13 +1396,13 @@ void hts_write_page(const lf_hitag_data_t *payload, bool ledcontrol) {
txlen = 0; txlen = 0;
uint8_t cmd = HITAGS_WRITE_PAGE; uint8_t cmd = HITAGS_WRITE_PAGE;
txlen = concatbits(tx, txlen, &cmd, 0, 4); txlen = concatbits(tx, txlen, &cmd, 0, 4, false);
uint8_t addr = payload->page; uint8_t addr = payload->page;
txlen = concatbits(tx, txlen, &addr, 0, 8); txlen = concatbits(tx, txlen, &addr, 0, 8, false);
uint8_t crc = CRC8Hitag1Bits(tx, txlen); uint8_t crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_SC, ledcontrol, false); hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_SC, ledcontrol, false);
@ -1430,9 +1430,9 @@ void hts_write_page(const lf_hitag_data_t *payload, bool ledcontrol) {
// } // }
txlen = 0; txlen = 0;
txlen = concatbits(tx, txlen, payload->data, 0, 32); txlen = concatbits(tx, txlen, payload->data, 0, 32, false);
crc = CRC8Hitag1Bits(tx, txlen); crc = CRC8Hitag1Bits(tx, txlen);
txlen = concatbits(tx, txlen, &crc, 0, 8); txlen = concatbits(tx, txlen, &crc, 0, 8, false);
enable_page_tearoff = g_tearoff_enabled; enable_page_tearoff = g_tearoff_enabled;
@ -1493,7 +1493,7 @@ int hts_read_uid(uint32_t *uid, bool ledcontrol, bool send_answer) {
size_t txlen = 0; size_t txlen = 0;
uint8_t tx[HITAG_FRAME_LEN] = { 0x00 }; uint8_t tx[HITAG_FRAME_LEN] = { 0x00 };
txlen = concatbits(tx, txlen, &cmd, 0, 5); txlen = concatbits(tx, txlen, &cmd, 0, 5, false);
hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_FIRST, ledcontrol, true); hts_send_receive(tx, txlen, rx, ARRAYLEN(rx), &rxlen, HITAG_T_WAIT_FIRST, ledcontrol, true);

4
client/src/cmdlfem410x.c
View file

@ -688,11 +688,11 @@ static int CmdEM410xClone(const char *Cmd) {
uint8_t r_parity = 0; uint8_t r_parity = 0;
uint8_t nibble = id >> i & 0xF; uint8_t nibble = id >> i & 0xF;
databits = concatbits(data, databits, &nibble, 4, 4); databits = concatbits(data, databits, &nibble, 4, 4, false);
for (size_t j = 0; j < 4; j++) { for (size_t j = 0; j < 4; j++) {
r_parity ^= nibble >> j & 1; r_parity ^= nibble >> j & 1;
} }
databits = concatbits(data, databits, &r_parity, 7, 1); databits = concatbits(data, databits, &r_parity, 7, 1, false);
c_parity ^= nibble; c_parity ^= nibble;
} }
data[7] |= c_parity << 1; data[7] |= c_parity << 1;

12
common/commonutil.c
View file

@ -555,9 +555,13 @@ void reverse_arraybytes_copy(uint8_t *arr, uint8_t *dest, size_t len) {
} }
// TODO: Boost performance by copying in chunks of 1, 2, or 4 bytes when feasible. // TODO: Boost performance by copying in chunks of 1, 2, or 4 bytes when feasible.
size_t concatbits(uint8_t *dest, int dest_offset, const uint8_t *src, int src_offset, size_t nbits) { /**
* @brief Concatenate bits from src to dest, bitstream is stored MSB first
* which means that the dest_offset=0 is the MSB of the dest[0]
*
*/
size_t concatbits(uint8_t *dest, int dest_offset, const uint8_t *src, int src_offset, size_t nbits, bool src_lsb) {
int i, end, step; int i, end, step;
// overlap // overlap
if ((src - dest) * 8 + src_offset - dest_offset > 0) { if ((src - dest) * 8 + src_offset - dest_offset > 0) {
i = 0; i = 0;
@ -571,8 +575,8 @@ size_t concatbits(uint8_t *dest, int dest_offset, const uint8_t *src, int src_of
for (; i != end; i += step) { for (; i != end; i += step) {
// equiv of dest_bits[dest_offset + i] = src_bits[src_offset + i] // equiv of dest_bits[dest_offset + i] = src_bits[src_offset + i]
CLEAR_BIT(dest, dest_offset + i); CLEAR_BIT_MSB(dest, dest_offset + i);
if (TEST_BIT(src, src_offset + i)) SET_BIT(dest, dest_offset + i); if (src_lsb ? TEST_BIT_LSB(src, src_offset + i) : TEST_BIT_MSB(src, src_offset + i)) SET_BIT_MSB(dest, dest_offset + i);
} }
return dest_offset + nbits; return dest_offset + nbits;

2
common/commonutil.h
View file

@ -150,7 +150,7 @@ bool hexstr_to_byte_array(const char *hexstr, uint8_t *d, size_t *n);
void reverse_arraybytes(uint8_t *arr, size_t len); void reverse_arraybytes(uint8_t *arr, size_t len);
void reverse_arraybytes_copy(uint8_t *arr, uint8_t *dest, size_t len); void reverse_arraybytes_copy(uint8_t *arr, uint8_t *dest, size_t len);
size_t concatbits(uint8_t *dest, int dest_offset, const uint8_t *src, int src_offset, size_t nbits); size_t concatbits(uint8_t *dest, int dest_offset, const uint8_t *src, int src_offset, size_t nbits, bool src_lsb);
int char2int(char c); int char2int(char c);
int hexstr2ByteArr(const char *hexstr, unsigned char *array, size_t asize); int hexstr2ByteArr(const char *hexstr, unsigned char *array, size_t asize);
#endif #endif

13
include/common.h
View file

@ -202,10 +202,15 @@ extern bool g_tearoff_enabled;
#endif #endif
// bit stream operations // bit stream operations
#define TEST_BIT(data, i) (*((data) + ((i) / 8)) >> (7 - ((i) % 8))) & 1 #define TEST_BIT_MSB(data, i) ((*((data) + ((i) / 8)) >> (7 - ((i) % 8))) & 1)
#define SET_BIT(data, i) *((data) + ((i) / 8)) |= (1 << (7 - ((i) % 8))) #define SET_BIT_MSB(data, i) (*((data) + ((i) / 8)) |= (1 << (7 - ((i) % 8))))
#define CLEAR_BIT(data, i) *((data) + ((i) / 8)) &= ~(1 << (7 - ((i) % 8))) #define CLEAR_BIT_MSB(data, i) (*((data) + ((i) / 8)) &= ~(1 << (7 - ((i) % 8))))
#define FLIP_BIT(data, i) *((data) + ((i) / 8)) ^= (1 << (7 - ((i) % 8))) #define FLIP_BIT_MSB(data, i) (*((data) + ((i) / 8)) ^= (1 << (7 - ((i) % 8))))
#define TEST_BIT_LSB(data, i) ((*((data) + ((i) / 8)) >> ((i) % 8)) & 1)
#define SET_BIT_LSB(data, i) (*((data) + ((i) / 8)) |= (1 << ((i) % 8)))
#define CLEAR_BIT_LSB(data, i) (*((data) + ((i) / 8)) &= ~(1 << ((i) % 8)))
#define FLIP_BIT_LSB(data, i) (*((data) + ((i) / 8)) ^= (1 << ((i) % 8)))
// time for decompressing and loading the image to the FPGA // time for decompressing and loading the image to the FPGA
#define FPGA_LOAD_WAIT_TIME (1500) #define FPGA_LOAD_WAIT_TIME (1500)