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Added 4041X permutation table in comments

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Matthew Saunier 2021-06-07 14:37:05 -06:00 committed by GitHub
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client/src/cmdlfindala.c
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@ -887,6 +887,16 @@ int getIndalaBits(uint8_t fc, uint16_t cn, uint8_t *bits) {
} }
// Derived from getIndalaBits() by Matt Saunier 04 Jun 2021. Conforms to the Indala 4041X format, correctly calculates parity for 26-bit Wiegand. // Derived from getIndalaBits() by Matt Saunier 04 Jun 2021. Conforms to the Indala 4041X format, correctly calculates parity for 26-bit Wiegand.
/*
Permutation table for this format, lower 4 bytes of card data.
0x40 | 1 | CN 6 | P Hi | CN 9 | CN A | CN 5 | P Lo | FC 1 |
0x50 | CN C | CN 0 | CN 5 | CN D | FC 5 | CN E | CN 7 | FC 4 |
0x60 | FC 3 | FC 6 | CN 1 | CN 8 | CN B | FC 2 | CN 4 | 1 |
0x70 | CN 3 | FC 7 | FC 0 | CN 2 | 0 | 0 | 0 | 0 |
*/
int getIndalaBits4041x(uint8_t fc, uint16_t cn, uint8_t *bits) { int getIndalaBits4041x(uint8_t fc, uint16_t cn, uint8_t *bits) {
// Preamble and required values // Preamble and required values