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Refactor ISO 15693 READ commands to handle addressed flag.

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This commit is contained in:
Markus Walter 2022-09-05 10:12:25 +02:00
commit 2d7e1d30b9
1 changed files with 9 additions and 19 deletions
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28
armsrc/iso15693.c
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@ -2240,29 +2240,19 @@ void SimTagIso15693(uint8_t *uid, uint8_t block_size) {
// READ_BLOCK and READ_MULTI_BLOCK
if ((cmd[1] == ISO15693_READBLOCK) || (cmd[1] == ISO15693_READ_MULTI_BLOCK)) {
bool slow = !(cmd[0] & ISO15_REQ_DATARATE_HIGH);
bool addressed = cmd[0] & ISO15_REQ_ADDRESS;
bool option = cmd[0] & ISO15_REQ_OPTION;
uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM;
uint8_t block_idx = 0;
uint8_t address_offset = 0;
if (addressed) {
address_offset = 8;
}
uint8_t block_idx = cmd[2 + address_offset];
uint8_t block_count = 1;
if (cmd[1] == ISO15693_READBLOCK) {
if (cmd_len == 13) {
// addressed mode
block_idx= cmd[10];
} else if (cmd_len == 5) {
// non-addressed mode
block_idx = cmd[2];
}
} else if (cmd[1] == ISO15693_READ_MULTI_BLOCK) {
if (cmd_len == 14) {
// addressed mode
block_idx= cmd[10];
block_count= cmd[11] + 1;
} else if (cmd_len == 6) {
// non-addressed mode
block_idx = cmd[2];
block_count = cmd[3] + 1;
}
if (cmd[1] == ISO15693_READ_MULTI_BLOCK) {
block_count = cmd[3 + address_offset] + 1;
}
// Build READ_(MULTI_)BLOCK response