97 lines
1.8 KiB
C
97 lines
1.8 KiB
C
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#include <windows.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include "aimeio/aimeio.h"
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#include "util/crc.h"
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#include "util/dprintf.h"
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static const char aime_io_path[] = "DEVICE\\aime.txt";
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static uint8_t aime_io_luid[10];
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HRESULT aime_io_init(void)
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{
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return S_OK;
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}
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void aime_io_fini(void)
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{
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}
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HRESULT aime_io_mifare_poll(uint8_t unit_no, uint32_t *uid)
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{
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HRESULT hr;
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FILE *f;
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size_t i;
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int byte;
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int r;
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if (unit_no != 0) {
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return S_FALSE;
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}
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hr = S_FALSE;
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f = NULL;
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if (!(GetAsyncKeyState(VK_RETURN) & 0x8000)) {
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goto end;
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}
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f = fopen(aime_io_path, "r");
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if (f == NULL) {
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dprintf("Aime DLL: Failed to open %s\n", aime_io_path);
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goto end;
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}
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for (i = 0 ; i < sizeof(aime_io_luid) ; i++) {
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r = fscanf(f, "%02x ", &byte);
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if (r != 1) {
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dprintf("Aime DLL: fscanf[%i] failed: %i\n", (int) i, r);
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goto end;
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}
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aime_io_luid[i] = byte;
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}
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/* NOTE: We are just arbitrarily using the CRC32 of the LUID here, real
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cards do not work like this! However, neither the application code nor
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the network protocol care what the UID is, it just has to be a stable
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unique identifier for over-the-air NFC communications. */
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*uid = crc32(aime_io_luid, sizeof(aime_io_luid), 0);
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hr = S_OK;
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end:
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if (f != NULL) {
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fclose(f);
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}
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return hr;
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}
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HRESULT aime_io_mifare_read_luid(
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uint8_t unit_no,
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uint32_t uid,
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uint8_t *luid,
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size_t luid_size)
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{
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assert(luid != NULL);
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assert(luid_size == sizeof(aime_io_luid));
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memcpy(luid, aime_io_luid, luid_size);
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return S_OK;
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}
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void aime_io_led_set_color(uint8_t unit_no, uint8_t r, uint8_t g, uint8_t b)
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{}
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