+// struct to handle wiegand
+typedef struct {
+ uint8_t FormatLen;
+ uint8_t SiteCode;
+ uint8_t FacilityCode;
+ uint8_t CardNumber;
+ uint8_t* Wiegand;
+ size_t Wiegand_n;
+ } wiegand_t;
+
+// static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
+
+// }
+//static void getParity26(uint32_t *hi, uint32_t *lo){
+ // uint32_t result = 0;
+ // int i;
+ // // even parity
+ // for (i = 24;i >= 13;i--)
+ // result ^= (*lo >> i) & 1;
+ // // even parity 26th bit
+ // *lo |= result << 25;
+
+ // // odd parity
+ // result = 0;
+ // for (i = 12;i >= 1;i--)
+ // result ^= (*lo >> i) & 1;
+ // *lo |= !result;
+//}
+
+// static void getParity33(uint32_t *hi, uint32_t *lo){
+
+// }
+// static void getParity34(uint32_t *hi, uint32_t *lo){
+ // uint32_t result = 0;
+ // int i;
+
+ // // even parity
+ // for (i = 7;i >= 0;i--)
+ // result ^= (*hi >> i) & i;
+ // for (i = 31;i >= 24;i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *hi |= result << 2;
+
+ // // odd parity bit
+ // result = 0;
+ // for (i = 23;i >= 1;i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *lo |= !result;
+// }
+// static void getParity35(uint32_t *hi, uint32_t *lo){
+// }
+// static void getParity37S(uint32_t *hi,uint32_t *lo){
+ // uint32_t result = 0;
+ // int i;
+
+ // // even parity
+ // for (i = 4; i >= 0; i--)
+ // result ^= (*hi >> i) & 1;
+
+ // for (i = 31; i >= 20; i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *hi |= result;
+
+ // // odd parity
+ // result = 0;
+ // for (i = 19; i >= 1; i--)
+ // result ^= (*lo >> i) & 1;
+
+ // *lo |= result;
+// }
+// static void getParity37H(uint32_t *hi, uint32_t *lo){
+ // uint32_t result = 0;
+ // int i;
+
+ // // even parity
+ // for (i = 4;i >= 0;i--)
+ // result ^= (*hi >> i) & 1;
+ // for (i = 31;i >= 20;i--)
+ // result ^= (*lo >> i) & 1;
+ // *hi |= result << 4;
+
+ // // odd parity
+ // result = 0;
+ // for (i = 19;i >= 1;i--)
+ // result ^= (*lo >> i) & 1;
+ // *lo |= result;
+// }
+
+//static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
+
+ uint8_t wiegand[24];
+ num_to_bytebits(fc, 8, wiegand);
+ num_to_bytebits(cardno, 16, wiegand+8);
+ wiegand_add_parity(out, wiegand, sizeof(wiegand) );
+
+// *out |= (1 << 26); // why this?
+// *out |= (1 << 37); // bit format for hid?
+}
+// static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+
+// }
+// static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+ // // put card number first bit 1 .. 20 //
+ // *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17);
+ // // set bit format for less than 37 bit format
+ // *hi = (1 << 5) | (fc >> 15);
+// }
+// static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+ // *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
+ // *hi = (1 << 5) | ((fc >> 11) & 1);
+// }
+// static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
+ // // FC 2 - 17 - 16 bit
+ // // cardno 18 - 36 - 19 bit
+ // // Even P1 1 - 19
+ // // Odd P37 19 - 36