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https://github.com/DarkFlippers/unleashed-firmware.git
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4d6b170769
* Fixing compiler warnings with -Wextra * More warnings suppression, WIP * Even more warning fixes * Added new lines at end of text files. * Padding fix * Additional fixes to warnings on different build configurations; added -Wextra to default build pipeline * Fixes for Secplus v1 * -additional warnings * +-Wredundant-decls fixes * FuriHal: print stack overflow task name in console * FuriHal: add missing include Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
#include "nfc_util.h"
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#include <furi.h>
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static const uint8_t nfc_util_odd_byte_parity[256] = {
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1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0,
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1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1,
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1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1,
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0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0,
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1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1,
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0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0,
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0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1,
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0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
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1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1};
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void nfc_util_num2bytes(uint64_t src, uint8_t len, uint8_t* dest) {
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furi_assert(dest);
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furi_assert(len <= 8);
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while(len--) {
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dest[len] = (uint8_t)src;
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src >>= 8;
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}
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}
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uint64_t nfc_util_bytes2num(uint8_t* src, uint8_t len) {
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furi_assert(src);
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furi_assert(len <= 8);
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uint64_t res = 0;
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while(len--) {
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res = (res << 8) | (*src);
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src++;
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}
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return res;
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}
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uint8_t nfc_util_even_parity32(uint32_t data) {
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// data ^= data >> 16;
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// data ^= data >> 8;
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// return !nfc_util_odd_byte_parity[data];
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return (__builtin_parity(data) & 0xFF);
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}
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uint8_t nfc_util_odd_parity8(uint8_t data) {
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return nfc_util_odd_byte_parity[data];
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}
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