-
-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){
- *lo = ((cardno & 0xFFFF) << 1) | ((fc & 0xFF) << 17) | (1 << 26);
- *hi = (1 << 5);
+// 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) {
+ switch(fmtlen) {
+ case 26:{
+ uint8_t len = 37;
+ uint8_t tmp[len];
+ memset(tmp, 0, len);
+ uint8_t idx = 37-fmtlen;
+ memcpy(tmp+idx, out, fmtlen);
+ tmp[idx] = 1; // start sentinel?
+ tmp[0] = 1; // bit indicates that a format smaller than 37 is used
+ memcpy(out, tmp, len);
+ break;
+ }
+ case 34:
+ // set bit format for less than 37 bit format
+ // 5+32= 1
+ //*hi = (1 << 5) | (fc >> 15);
+ break;
+ default:break;
+ }