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This commit is contained in:
Eric Betts
2024-04-22 10:01:09 -07:00
parent be81164ccc
commit 3f83d81288
1 changed files with 53 additions and 8 deletions
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sam_api.c
+53 -8
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@@ -768,7 +768,7 @@ void seader_mfc_transmit(
uint8_t tx_parity = 0;
// Don't forget to swap the bits of buffer[8]
for(size_t i = 0; i < 8 + 1; i++) {
for(size_t i = 0; i < len; i++) {
bit_lib_reverse_bits(buffer + i, 0, 8);
}
@@ -797,14 +797,59 @@ void seader_mfc_transmit(
break;
}
/*
uint8_t b[SEADER_POLLER_MAX_BUFFER_SIZE];
memset(b, 0, SEADER_POLLER_MAX_BUFFER_SIZE);
size_t bits_written = 0;
bit_buffer_write_bytes_with_parity(rx_buffer, b, SEADER_POLLER_MAX_BUFFER_SIZE, &bits_written);
size_t length = bit_buffer_get_size_bytes(rx_buffer);
const uint8_t* rx_parity = bit_buffer_get_parity(rx_buffer);
memset(display, 0, sizeof(display));
for(uint8_t i = 0; i < length; i++) {
snprintf(
display + (i * 2), sizeof(display), "%02x", bit_buffer_get_byte(rx_buffer, i));
}
FURI_LOG_D(TAG, "NFC Response %d: %s [%02x]", length, display, rx_parity[0]);
uint8_t with_parity[SEADER_POLLER_MAX_BUFFER_SIZE];
memset(with_parity, 0, sizeof(with_parity));
for(size_t i = 0; i < length; i++) {
uint8_t b = bit_buffer_get_byte(rx_buffer, i);
bit_lib_reverse_bits(&b, 0, 8);
bit_buffer_set_byte(rx_buffer, i, b);
}
length = length + (length / 8) + 1;
uint8_t parts = 1 + length / 9;
for(size_t p = 0; p < parts; p++) {
uint8_t doffset = p * 9;
uint8_t soffset = p * 8;
for(size_t i = 0; i < 9; i++) {
with_parity[i + doffset] = bit_buffer_get_byte(rx_buffer, i + soffset) >> i;
if(i > 0) {
with_parity[i + doffset] |= bit_buffer_get_byte(rx_buffer, i + soffset - 1)
<< (9 - i);
}
if(i > 0) {
bool val = bit_lib_get_bit(rx_parity, i - 1);
bit_lib_set_bit(with_parity + i, i - 1, val);
}
}
}
for(size_t i = 0; i < length; i++) {
bit_lib_reverse_bits(with_parity + i, 0, 8);
}
bit_buffer_copy_bytes(rx_buffer, with_parity, length);
memset(display, 0, sizeof(display));
for(uint8_t i = 0; i < length; i++) {
snprintf(
display + (i * 2), sizeof(display), "%02x", bit_buffer_get_byte(rx_buffer, i));
}
FURI_LOG_D(TAG, "NFC Response %d: %s [%02x]", length, display, rx_parity[0]);
seader_send_nfc_rx(seader_uart, b, bits_written/8);
*/
} else {
FURI_LOG_W(TAG, "UNHANDLED FORMAT");
}