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Refactor emulator accessor helpers for ISO15693.

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This commit is contained in:
Markus Walter 2022-09-05 09:52:08 +02:00
parent 41f36199aa
commit c062c44230
2 changed files with 12 additions and 6 deletions
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17
armsrc/iso15693.c
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@ -2111,6 +2111,11 @@ void EmlSetMemIso15693(uint8_t count, uint8_t *data, uint32_t offset) {
memcpy(emCARD + offset, data, count);
}
void EmlGetMemIso15693(uint8_t count, uint8_t *output, uint32_t offset) {
uint8_t *emCARD = BigBuf_get_EM_addr();
memcpy(output, emCARD + offset, count);
}
// Simulate an ISO15693 TAG, perform anti-collision and then print any reader commands
// all demodulation performed in arm rather than host. - greg
void SimTagIso15693(uint8_t *uid, uint8_t block_size) {
@ -2272,7 +2277,6 @@ void SimTagIso15693(uint8_t *uid, uint8_t block_size) {
resp_readblock[i] = 0;
}
uint8_t *emCARD = BigBuf_get_EM_addr();
resp_readblock[0] = 0; // Response flags
for (int j = 0; j < block_count; j++) {
// where to put the data of the current block
@ -2280,11 +2284,12 @@ void SimTagIso15693(uint8_t *uid, uint8_t block_size) {
if (option) {
resp_readblock[work_offset] = 0; // Security status
}
for (int i = 0; i < block_size; i++) {
// Block data
if (block_size * (block_idx + j + 1) <= CARD_MEMORY_SIZE) {
resp_readblock[work_offset + security_offset + i] = emCARD[block_size * (block_idx + j) + i];
} else {
// Block data
if (block_size * (block_idx + j + 1) <= CARD_MEMORY_SIZE) {
EmlGetMemIso15693(block_size, resp_readblock + (work_offset + security_offset),
block_size * (block_idx + j));
} else {
for (int i = 0; i < block_size; i++) {
resp_readblock[work_offset + security_offset + i] = 0;
}
}

1
armsrc/iso15693.h
View file

@ -48,6 +48,7 @@ void AcquireRawAdcSamplesIso15693(void);
void ReaderIso15693(iso15_card_select_t *p_card); // ISO15693 reader
void EmlClearIso15693(void);
void EmlSetMemIso15693(uint8_t count, uint8_t *data, uint32_t offset);
void EmlGetMemIso15693(uint8_t count, uint8_t *output, uint32_t offset);
void SimTagIso15693(uint8_t *uid, uint8_t block_size); // simulate an ISO15693 tag
void BruteforceIso15693Afi(uint32_t speed); // find an AFI of a tag
void DirectTag15693Command(uint32_t datalen, uint32_t speed, uint32_t recv, uint8_t *data); // send arbitrary commands from CLI