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b5a5fc4d | 1 | //----------------------------------------------------------------------------- |
2 | // Copyright (C) 2018 grauerfuchs | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // HID card format packing/unpacking support functions | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
11 | #ifndef HIDCARDFORMATUTILS_H__ | |
12 | #define HIDCARDFORMATUTILS_H__ | |
13 | ||
14 | #include <stdarg.h> | |
15 | #include <stdint.h> | |
16 | #include <stdbool.h> | |
17 | ||
18 | // Structure for packed HID messages | |
19 | // Always align lowest value (last transmitted) bit to ordinal position 0 (lowest valued bit bottom) | |
20 | typedef struct hidproxmessage_s{ | |
21 | uint8_t Length; // Number of encoded bits in prox message (excluding headers and preamble) | |
22 | uint32_t top; // Bits in x<<64 positions | |
23 | uint32_t mid; // Bits in x<<32 positions | |
24 | uint32_t bot; // Lowest ordinal positions | |
25 | } hidproxmessage_t; | |
26 | ||
27 | // Structure for unpacked HID prox cards | |
28 | typedef struct hidproxcard_s{ | |
29 | uint32_t FacilityCode; | |
30 | uint64_t CardNumber; | |
be59094d | 31 | uint32_t IssueLevel; |
32 | uint32_t OEM; | |
b5a5fc4d | 33 | bool ParityValid; // Only valid for responses |
34 | } hidproxcard_t; | |
35 | ||
36 | bool get_bit_by_position(/* in */hidproxmessage_t* data, /* in */uint8_t pos); | |
37 | bool set_bit_by_position(/* inout */hidproxmessage_t* data, /* in */bool value, /* in */uint8_t pos); | |
38 | ||
39 | uint64_t get_linear_field(/* in */hidproxmessage_t* data, /* in */uint8_t firstBit, /* in */uint8_t length); | |
40 | bool set_linear_field(/* inout */hidproxmessage_t* data, /* in */uint64_t value, /* in */uint8_t firstBit, /* in */uint8_t length); | |
41 | ||
42 | uint64_t get_nonlinear_field(/* in */hidproxmessage_t* data, /* in */uint8_t numBits, /* in */uint8_t* bits); | |
43 | bool set_nonlinear_field(/* inout */hidproxmessage_t* data, /* in */uint64_t value, /* in */uint8_t numBits, /* in */uint8_t* bits); | |
44 | ||
45 | hidproxmessage_t initialize_proxmessage_object(/* in */uint32_t top, /* in */uint32_t mid, /* in */uint32_t bot); | |
46 | bool add_HID_header(/* inout */hidproxmessage_t* data); | |
47 | #endif |