Fixed an off-by-one error and config loading for reader name

Reading card 3 and above resulted in an off by one error that always threw a "this line isn't X bytes long" error.

Readername now always gets properly loaded from config :
I've added comments in the config file to make it obvious what each line does but that fucked up the reader name config. i'm now discarding the comment after loading the line.

Updated readme.md

build64.bat

@@ -1,6 +1,8 @@
+@echo off
 cd /d %~dp0
 
 REM Edit this with the right path to vcvarsall.bat.
+call "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvarsall.bat" x64
 call "C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Auxiliary\Build\vcvarsall.bat" x64
 meson setup build64 --buildtype=release
 meson configure build64
@@ -8,3 +10,4 @@ ninja -C build64
 
 mkdir bin
 copy build64\src\aimeio.dll bin\aimeio.dll
+copy build64\src\aimetest.exe bin\aimetest.exe

meson.build

@@ -1,7 +1,7 @@
 project(
     'aimeio_scard',
     'c',
-    version : '0.0.1'
+    version : '0.4.0'
 )
 
 inc = include_directories('.')

readme.md

@@ -1,27 +1,66 @@
 # AimeIO CardReader
 
-This allows you to use smartcard readers (specifically the acr122u) with [segatools](https://gitea.tendokyu.moe/Dniel97/segatools)
+This allows you to a smartcard reader (specifically the acr122u) with segatools
+
+**This has only been confirmed working with Chunithm Sun and Sun + so far. Luminous doesn't seem to work yet !**
 
 # Acknowledgments
 
-This is a plugin destined to be used with [Dniel97's](https://gitea.tendokyu.moe/Dniel97)'s segatools fork (but should work on others too).
+This is a plugin destined to be used with [Dniel97](https://gitea.tendokyu.moe/Dniel97)'s [segatools fork](https://gitea.tendokyu.moe/Dniel97/segatools) (but should work on others too).
 
 SmartCard implementation taken from [spicetools](https://github.com/spicetools/spicetools)
 
 Initial project made by [nat](https://gitea.tendokyu.moe/nat/aimeio-pcsc)
 
+All the logic for reading cards from a file has been taken from [CrazyRedMachine](https://github.com/CrazyRedMachine)'s [RedBoard](https://github.com/CrazyRedMachine/RedBoard) aimeio.
+
 # Usage
 
+Make sure to install the ACR122U's [driver](https://www.acs.com.hk/en/driver/3/acr122u-usb-nfc-reader/) before using this.
+
 To use it with a game, copy `aimeio.dll` to your `segatools` folder and add the following to your `segatools.ini`:
 
 ```ini
 [aimeio]
-path=aimeio.dll
+path=aimeio.dll    ;Path to aimeio.dll
+scan=0x0D          ;Sets the key which will be used to insert a card in game. The default is 'Return'
+
+
+;Everything below this line is optional.
+
+readerOptional=1            ;Make reader optional, so that you can still use the keyboard
+readerName=ACS ACR122 0     ;Manually select which reader to use
+disableBuzzer=1             ;Disable the buzzer 
+;aimePath=""                ;Manually specify an aime.txt file
+;felicaPath=""              ;Manually specify a felica.txt file
+;debug=0                    ;Display function calls
 ```
 
+## Scanning cards
+
 If you scan a newer AIC-based Aime, its FeliCa IDm will be provided to the game. The game will not see the correct "access code," but the IDm should be unique to each card so that particular card can still track your plays.  
 
-As for Mifare cards, their access code won't be 1:1 with a real reader (i still need to fix this). You can still use them and they will work though !
+## Inserting cards
+
+By pressing the key you have set in segatools.ini and holding it for a few moments, you will insert a card set in either aime.txt or felica.txt
+
+You can have multiple cards in those files!  
+By holding a number from 0 to 9 on your keypad, and then holding enter, you can choose what card to insert.
+
+For example...
+
+```text
+aime.txt
+---
+
+1a7f3e925cb866d45a3b
+a5d04d668bc529e35aaa
+```
+
+By only pressing the insert key, you will insert card0, "1a7f3e925cb866d45a3b".  
+If you hold 1 on your numpad and press the insert key, card1, "a5d04d668bc529e35aaa" will be inserted !  
+
+This works for up to 10 cards.
 
 # Build
 

src/aimeio.c

@@ -1,52 +1,177 @@
-#include <windows.h>
-
-#include <assert.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
 #include "aimeio.h"
 #include "scard/scard.h"
 
-char module[] = "CardReader";
-
 // Reader Thread
-static bool READER_RUNNER_INITIALIZED = false;
 static HANDLE READER_POLL_THREAD;
 static bool READER_POLL_STOP_FLAG;
 
-char AccessID[21] = "00000000000000000001";
+static struct aime_io_config aime_io_cfg;
-static bool HasCard = false;
+static struct card_data card_data;
-uint8_t UID[8] = {0};
 
-static struct aimepcsc_context *ctx;
+#pragma region CONFIG
-// static struct aime_data data;
+// This is used because otherwise loading a reader with a given name while keeping the comment inline in the config file fails..
-
+void RemoveCommentAndTruncate(wchar_t *value)
-#pragma region READER SPECIFIC
-static unsigned int __stdcall reader_poll_thread_proc(void *ctx)
 {
+    size_t len = wcslen(value);
+    wchar_t *semicolon = NULL;
+
+    // Remove comments
+    semicolon = wcschr(value, L';');
+    if (semicolon != NULL)
+    {
+        *semicolon = L'\0';
+        len = wcslen(value);
+    }
+
+    // Trim trailing whitespaces
+    while (len > 0 && (value[len - 1] == L' ' || value[len - 1] == L'\t' || value[len - 1] == L'\r' || value[len - 1] == L'\n'))
+    {
+        value[--len] = L'\0';
+    }
+}
+
+static void aime_io_config_read(struct aime_io_config *cfg, const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    cfg->debug = GetPrivateProfileIntW(
+        L"aimeio",
+        L"debug",
+        0,
+        filename);
+
+    GetPrivateProfileStringW(
+        L"aimeio",
+        L"aimePath",
+        L"DEVICE\\aime.txt",
+        cfg->aime_path,
+        _countof(cfg->aime_path),
+        filename);
+
+    GetPrivateProfileStringW(
+        L"aimeio",
+        L"felicaPath",
+        L"DEVICE\\felica.txt",
+        cfg->felica_path,
+        _countof(cfg->felica_path),
+        filename);
+
+    GetPrivateProfileStringW(
+        L"aimeio",
+        L"readerName",
+        L"",
+        cfg->reader_name,
+        _countof(cfg->reader_name),
+        filename);
+    RemoveCommentAndTruncate(cfg->reader_name);
+
+    cfg->reader_optional = GetPrivateProfileIntW(
+        L"aimeio",
+        L"readerOptional",
+        0,
+        filename);
+
+    cfg->disable_buzzer = GetPrivateProfileIntW(
+        L"aimeio",
+        L"disableBuzzer",
+        0,
+        filename);
+
+    cfg->vk_scan = GetPrivateProfileIntW(
+        L"aimeio",
+        L"scan",
+        VK_RETURN,
+        filename);
+
+    if (aime_io_cfg.debug)
+        printf("DEBUG: aime_io_config_read(filename : %ls). \r\n", filename);
+}
+
+static HRESULT aime_io_read_id_file(const wchar_t *path, uint8_t *bytes, size_t nbytes, int LineToRead)
+{
+    HRESULT hr;
+    FILE *f;
+    size_t i;
+    int byte;
+    long offset;
+    int currentLine = 0;
+
+    f = _wfopen(path, L"r");
+    if (f == NULL) // If the file doesn't exist, we bail.
+        return S_FALSE;
+
+    memset(bytes, 0, nbytes);
+
+    // Calculate the offset to the start of the desired line
+    offset = 0;
+    while (currentLine < LineToRead)
+    {
+        int c = fgetc(f);
+        if (c == EOF)
+        {
+            // If the end of the file is reached before the desired line, print an error
+            printf("aime_io_read_id_file: %S: Error: Line %d does not exist\n", path, LineToRead);
+            hr = E_FAIL;
+            goto end;
+        }
+
+        if (c == '\n')
+        {
+            currentLine++;
+            offset++;
+        }
+
+        offset++;
+    }
+
+    // Seek to the calculated offset
+    fseek(f, offset, SEEK_SET);
+
+    // Read the desired line and extract hexadecimal values
+    for (i = 0; i < nbytes; i++)
+    {
+        int r = fscanf(f, "%02x", &byte);
+
+        if (r != 1)
+        {
+            printf("aime_io_read_id_file: %S: Error parsing line %d\n", path, LineToRead);
+            hr = E_FAIL;
+            goto end;
+        }
+
+        bytes[i] = byte;
+    }
+
+    // Check if the line is not nbytes long
+    if (fgetc(f) != '\n' && !feof(f))
+    {
+        printf("aime_io_read_id_file: %S: Error: Line %d is not %zu bytes long\n", path, LineToRead, nbytes);
+        hr = E_FAIL;
+        goto end;
+    }
+
+    hr = S_OK;
+
+end:
+    if (f != NULL)
+    {
+        fclose(f);
+    }
+
+    return hr;
+}
+#pragma endregion
+
+#pragma region READER
+static unsigned int __stdcall aime_io_poll_thread_proc(void *ctx)
+{
+    if (aime_io_cfg.debug)
+        printf("DEBUG: aime_io_poll_thread_proc(). \r\n");
     while (!READER_POLL_STOP_FLAG)
     {
-        if (!HasCard)
+        if (card_data.card_type == 0) // Halting polling once a card is found, waiting for the game to read it's value.
-        {
+            scard_poll(&card_data);   // We're trying to find a card. If we do, the card's id and type are written to card_data.
-            scard_update(UID);
-
-            if (UID[0] > 0) // If a card was read, format it properly and set HasCard to true so the game can insert it on next frame.
-            {
-                printf("%s: Read card %02X%02X%02X%02X%02X%02X%02X%02X\n", module, UID[0], UID[1], UID[2], UID[3], UID[4], UID[5], UID[6], UID[7]);
-
-                // Properly format the AccessID
-                uint64_t ReversedAccessID;
-                for (int i = 0; i < 8; i++)
-                    ReversedAccessID = (ReversedAccessID << 8) | UID[i];
-                sprintf(AccessID, "%020llu", ReversedAccessID);
-
-                HasCard = true;
-            }
-        }
     }
 
     return 0;
@@ -61,122 +186,156 @@ uint16_t aime_io_get_api_version(void)
 
 HRESULT aime_io_init(void)
 {
-    // At init we want to open a console...
+    int ret = AllocConsole(); // At init we want to open a console...
-    int ret = AllocConsole();
     FILE *fp;
-    // someone might already allocated a console - seeing this on fufubot's segatools
+
-    if (ret != 0)
+    if (ret != 0)                               // someone might already allocated a console - seeing this on fufubot's segatools
         freopen_s(&fp, "CONOUT$", "w", stdout); // only when we allocate a console, we need to redirect stdout
 
-    //  Find and initialize reader(s)
+    memset(&card_data, 0, sizeof(card_data)); // We init the card_data structure
-    if (!READER_RUNNER_INITIALIZED)
-    {
-        READER_RUNNER_INITIALIZED = true;
-        printf("%s: Initializing SmartCard\n", module);
 
-        if (!scard_init())
+    // We then read the segatools config file to get settings.
+    aime_io_config_read(&aime_io_cfg, L".\\segatools.ini");
+
+    printf("aime_io_init: Initializing SmartCard\n"); //  Find and initialize reader(s)
+    if (!scard_init(aime_io_cfg))
     {
-            printf("%s: Couldn't init SmartCard\n", module);
+        printf("aime_io_init: Couldn't init SmartCard\n"); // If we couldn't init reader, error out.
+        if (!aime_io_cfg.reader_optional)
             return E_FAIL;
-        }
+
+        printf("aime_io_init: Reader is optional, using keyboard only !\n"); // If however the readerOptional flag is set to 1 in segatools.ini, continue with keyboard only.
+        return S_OK;
     }
 
-    printf("%s: Starting reader thread.\n", module);
+    printf("aime_io_init: Starting reader thread.\n");
 
     // Start reader thread
     READER_POLL_STOP_FLAG = false;
     READER_POLL_THREAD = (HANDLE)_beginthreadex(
         NULL,
         0,
-        reader_poll_thread_proc,
+        aime_io_poll_thread_proc,
         NULL,
         0,
         NULL);
 
-    // // int ret;
-    // // FILE *fp;
-
-    // // ret = AllocConsole();
-
-    // // // someone might already allocated a console - seeing this on fufubot's segatools
-    // // if (ret != 0)
-    // // {
-    // //     // only when we allocate a console, we need to redirect stdout
-    // //     freopen_s(&fp, "CONOUT$", "w", stdout);
-    // // }
-
-    // // ctx = aimepcsc_create();
-    // // if (!ctx)
-    // // {
-    // //     return E_OUTOFMEMORY;
-    // // }
-
-    // // ret = aimepcsc_init(ctx);
-
-    // // if (ret != 0)
-    // // {
-    // //     printf("aimeio-pcsc: failed to initialize: %s\n", aimepcsc_error(ctx));
-    // //     aimepcsc_destroy(ctx);
-    // //     ctx = NULL;
-    // //     return E_FAIL;
-    // // }
-
-    // // printf("aimeio-pcsc: initialized with reader: %s\n", aimepcsc_reader_name(ctx));
-
     return S_OK;
 }
 
 HRESULT aime_io_nfc_poll(uint8_t unit_no)
 {
+    if (aime_io_cfg.debug)
+        printf("\n\nDEBUG: aime_io_nfc_poll(unit_no %d). \r\n", unit_no);
+
+    if (unit_no != 0)
+        return S_OK;
+
+    // Don't do anything more if the scan key is not held
+    if (!(GetAsyncKeyState(aime_io_cfg.vk_scan) & 0x8000))
+        return S_OK;
+
+    //  Set which card we want to read (we will read the x'th line in the card's file, x being determined by which key is pressed on the keypad).
+    int card = 0;
+    for (int key = VK_NUMPAD0; key <= VK_NUMPAD9; key++)
+    {
+        short keyState = GetAsyncKeyState(key);
+        if (keyState & 0x8000) // Check if the most significant bit is set, indicating that the key is down
+        {
+            card = key - VK_NUMPAD0;
+            continue;
+        }
+    }
+
+    HRESULT hr;
+    printf("aime_io_nfc_poll: Attempting to read card %d from file. \r\n", card);
+
+    // Try AiMe IC
+    hr = aime_io_read_id_file(aime_io_cfg.aime_path, card_data.card_id, 10, card);
+    if (SUCCEEDED(hr) && hr != S_FALSE)
+    {
+        card_data.card_type = Mifare;
+        return S_OK;
+    }
+
+    // Try FeliCa IC
+    hr = aime_io_read_id_file(aime_io_cfg.felica_path, card_data.card_id, 8, card);
+    if (SUCCEEDED(hr) && hr != S_FALSE)
+    {
+        card_data.card_type = FeliCa;
+        return S_OK;
+    }
+
+    // We found nothing.
     return S_OK;
 }
 
 HRESULT aime_io_nfc_get_aime_id(uint8_t unit_no, uint8_t *luid, size_t luid_size)
 {
-    // Lol what
+    if (aime_io_cfg.debug)
+        printf("DEBUG: aime_io_nfc_get_aime_id(unit_no : %d). \r\n", unit_no);
+
+    assert(luid != NULL);
+    assert(luid_size == 10);
+
+    if (unit_no != 0)
+        return S_FALSE;
+
+    if (card_data.card_type == Mifare)
+    {
+        memcpy(luid, card_data.card_id, luid_size);
+        printf("aime_io_nfc_get_aime_id: Sending Aime card with luID %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X\r\n\n", card_data.card_id[0], card_data.card_id[1], card_data.card_id[2], card_data.card_id[3], card_data.card_id[4], card_data.card_id[5], card_data.card_id[6], card_data.card_id[7], card_data.card_id[8], card_data.card_id[9]);
+
+        memset(&card_data, 0, sizeof(card_data)); // Reset card_data structure
+        return S_OK;
+    }
+
     return S_FALSE;
 }
 
 HRESULT aime_io_nfc_get_felica_id(uint8_t unit_no, uint64_t *IDm)
 {
+    if (aime_io_cfg.debug)
+        printf("DEBUG: aime_io_nfc_get_felica_id(unit_no : %d). \r\n", unit_no);
+
     assert(IDm != NULL);
+    if (unit_no != 0)
+        return S_FALSE;
 
-    if (HasCard)
+    if (card_data.card_type == FeliCa)
     {
-        printf("%s: Card has been scanned ! : %s\n", module, AccessID);
+        uint64_t val = 0;
-        HasCard = false;
+        for (size_t i = 0; i < 8; i++)
+            val = (val << 8) | card_data.card_id[i];
 
-        uint64_t val;
-        for (int i = 0; i < 8; i++)
-        {
-            val = (val << 8) | UID[i];
-            UID[i] = 0;
-        }
         *IDm = val;
+        printf("aime_io_nfc_get_felica_id: Sending FeliCa card with serial %02X%02X %02X%02X %02X%02X %02X%02X\r\n\n", card_data.card_id[0], card_data.card_id[1], card_data.card_id[2], card_data.card_id[3], card_data.card_id[4], card_data.card_id[5], card_data.card_id[6], card_data.card_id[7]);
 
+        memset(&card_data, 0, sizeof(card_data)); // Reset card_data structure
         return S_OK;
     }
 
-    // // assert(IDm != NULL);
+    // if (HasCard)
+    // {
+    //     polling = false;
+    //     HasCard = false;
 
-    // // if (unit_no != 0 || data.card_type != FeliCa || data.card_id_len != 8)
+    //     uint64_t val;
-    // // {
+    //     for (int i = 0; i < 8; i++)
-    // //     return S_FALSE;
+    //     {
-    // // }
+    //         val = (val << 8) | UID[i];
-
+    //     }
-    // // val = 0;
+    //     *IDm = val;
-
+    //     printf("aime_io_nfc_get_felica_id: FeliCa card has been scanned ! %llx\r\n", val);
-    // // for (i = 0; i < 8; i++)
-    // // {
-    // //     val = (val << 8) | data.card_id[i];
-    // // }
-
-    // // *IDm = val;
 
+    //     return S_OK;
+    // }
     return S_FALSE;
 }
 
 void aime_io_led_set_color(uint8_t unit_no, uint8_t r, uint8_t g, uint8_t b)
 {
+    if (aime_io_cfg.debug)
+        printf("DEBUG: aime_io_led_set_color(unit_no : %d, r : %d, g : %d, b : %d). \r\n", unit_no, r, g, b);
 }
 #pragma endregion

src/aimeio.h

@@ -1,9 +1,21 @@
 #pragma once
 
 #include <windows.h>
-
+#include <assert.h>
-#include <stddef.h>
+#include <stdbool.h>
 #include <stdint.h>
+#include <stdio.h>
+
+struct aime_io_config
+{
+    bool debug;
+    wchar_t aime_path[MAX_PATH];
+    wchar_t felica_path[MAX_PATH];
+    wchar_t reader_name[MAX_PATH];
+    bool disable_buzzer;
+    bool reader_optional;
+    uint8_t vk_scan;
+};
 
 /*
     Get the version of the Aime IO API that this DLL supports. This function

src/aimetest.c

@@ -0,0 +1,69 @@
+#include <windows.h>
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "aimeio.h"
+
+int main()
+{
+    printf("AIMETEST\r\n---------\r\n");
+    // printf("api version = %04x\r\n", chuni_io_get_api_version()); /* not compatible with older dlls */
+    printf("aime_io_init() : \n");
+    switch (aime_io_init())
+    {
+    case E_FAIL:
+        printf("AIMETEST: aime_io_init() returned E_FAIL. Reader is either missing or incompatible !\r\n");
+        return E_FAIL;
+
+    case S_OK:
+        printf("AIMETEST: aime_io_init() returned S_OK !\r\n");
+        break;
+
+    default:
+        printf("AIMETEST: aime_io_init() returned an unknown state !\r\n");
+        return E_FAIL;
+    }
+
+    // printf("aime_io_led_set_color(red) : ");
+    // aime_io_led_set_color(0, 255, 0, 0);
+    // printf("OK\r\n");
+    // Sleep(2000);
+    // printf("aime_io_led_set_color(green) : ");
+    // aime_io_led_set_color(0, 0, 255, 0);
+    // printf("OK\r\n");
+    // Sleep(2000);
+    // printf("aime_io_led_set_color(blue) : ");
+    // aime_io_led_set_color(0, 0, 0, 255);
+    // printf("OK\r\n");
+    // Sleep(2000);
+    // aime_io_led_set_color(0, 0, 0, 0);
+
+    printf("AIMETEST: Running input loop. Press Ctrl+C to exit.\r\n");
+
+    uint8_t luid[10] = {0};
+    uint64_t IDm = 0;
+    while (1)
+    {
+        if (aime_io_nfc_poll(0) == S_OK)
+        {
+            if (aime_io_nfc_get_felica_id(0, &IDm) == S_OK)
+            {
+                // aime_io_led_set_color(0, 0, 255, 0);
+                printf("AIMETEST: Found FeliCa card with IDm %llx\r\n\n", IDm);
+            }
+            if (aime_io_nfc_get_aime_id(0, luid, 10) == S_OK)
+            {
+                // aime_io_led_set_color(0, 0, 0, 255);
+                printf("AIMETEST: Found old card with luID %02X%02X %02X%02X %02X%02X %02X%02X %02X%02X\r\n", luid[0], luid[1], luid[2], luid[3], luid[4], luid[5], luid[6], luid[7], luid[8], luid[9]);
+            }
+            Sleep(500);
+            // printf("poll ok but no card?!\r\n");
+        }
+        // Sleep(300);
+        // aime_io_led_set_color(0, 0, 0, 0);
+    }
+
+    return 0;
+}

src/meson.build

@@ -9,7 +9,7 @@ deps = [
     setupapi_lib,
 ]
 
-shared_library(
+aimeio_dll = shared_library(
     'aimeio',
     implicit_include_directories : false,    
     vs_module_defs : 'aimeio.def',
@@ -22,3 +22,5 @@ shared_library(
         inc
     ]
 )
+
+executable('aimetest', 'aimetest.c', link_with : aimeio_dll)

src/scard/scard.c

@@ -1,33 +1,4 @@
-/**
- * MIT-License
- * Copyright (c) 2018 by nolm <nolan@nolm.name>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- * Modified version.
- */
-
 #include "scard.h"
-// #include <tchar.h>
-// #include <thread>
-
-extern char module[];
 
 #define MAX_APDU_SIZE 255
 int readCooldown = 500;
@@ -35,35 +6,175 @@ int readCooldown = 500;
 // based off acr122u reader, see page 26 in api document.
 // https://www.acs.com.hk/en/download-manual/419/API-ACR122U-2.04.pdf
 
-#define PICC_OPERATING_PARAMS 0xDFu
+// #define PARAM_POLLRATE 0xDFu
-BYTE PICC_OPERATING_PARAM_CMD[5] = {0xFFu, 0x00u, 0x51u, PICC_OPERATING_PARAMS, 0x00u};
+#define PARAM_POLLRATE 0x9Bu
+static const BYTE PARAM_SET_PICC[5] = {0xFFu, 0x00u, 0x51u, PARAM_POLLRATE, 0x00u};
+static const BYTE PARAM_LOAD_KEY[11] = {0xFFu, 0x82u, 0x00u, 0x00u, 0x06u, 0x57u, 0x43u, 0x43u, 0x46u, 0x76u, 0x32u};
+static const BYTE PARAM_ENABLE_BUZZER[5] = {0xFFu, 0x00u, 0x52u, 0xFFu, 0x00u};
+static const BYTE PARAM_DISABLE_BUZZER[5] = {0xFFu, 0x00u, 0x52u, 0x00u, 0x00u};
+
+static const BYTE COMMAND_GET_UID[5] = {0xFFu, 0xCAu, 0x00u, 0x00u, 0x00u};
+static const BYTE COMMAND_AUTH_BLOCK2[10] = {0xFFu, 0x86u, 0x00u, 0x00u, 0x05u, 0x01u, 0x00u, 0x02u, 0x61u, 0x00u};
+static const BYTE COMMAND_READ_BLOCK2[5] = {0xFFu, 0xB0u, 0x00u, 0x02u, 0x10u};
 
 // return bytes from device
 #define PICC_SUCCESS 0x90u
 #define PICC_ERROR 0x63u
 
-static const BYTE UID_CMD[5] = {0xFFu, 0xCAu, 0x00u, 0x00u, 0x00u};
-
 enum scard_atr_protocol
 {
     SCARD_ATR_PROTOCOL_ISO14443_PART3 = 0x03,
-    SCARD_ATR_PROTOCOL_ISO15693_PART3 = 0x0B,
     SCARD_ATR_PROTOCOL_FELICA_212K = 0x11,
-    SCARD_ATR_PROTOCOL_FELICA_424K = 0x12,
 };
 
 // winscard_config_t WINSCARD_CONFIG;
-SCARDCONTEXT hContext = 0;
+static SCARDCONTEXT hContext = 0;
-SCARD_READERSTATE reader_states[2];
+static SCARD_READERSTATE reader_state;
-LPTSTR reader_name_slots[2] = {NULL, NULL};
+static LONG lRet = 0;
-int reader_count = 0;
-LONG lRet = 0;
 
-void scard_poll(uint8_t *buf, SCARDCONTEXT _hContext, LPCTSTR _readerName, uint8_t unit_no)
+bool scard_init(struct aime_io_config config)
 {
-    printf("%s: Update on reader : %s\n", module, reader_states[unit_no].szReader);
+    if ((lRet = SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &hContext)) != SCARD_S_SUCCESS)
+    {
+        //  log_warning("scard", "failed to establish SCard context: {}", bin2hex(&lRet, sizeof(LONG)));
+        return FALSE;
+    }
+
+    // get list of readers
+    LPTSTR reader_list = NULL;
+    auto pcchReaders = SCARD_AUTOALLOCATE;
+    lRet = SCardListReaders(hContext, NULL, (LPTSTR)&reader_list, &pcchReaders);
+
+    switch (lRet)
+    {
+    case SCARD_E_NO_READERS_AVAILABLE:
+        printf("scard_init: No readers available\n");
+        return FALSE;
+
+    case SCARD_S_SUCCESS:
+        LPTSTR reader_name = NULL;
+        int readerNameLen = 0;
+
+        // Iterate through the multi-string to get individual reader names
+        printf("scard_init: listing all readers : ");
+        while (*reader_list != '\0')
+        {
+            printf("%s, ", reader_list);
+            reader_list += strlen(reader_list) + 1;
+        }
+        printf("\r\n", reader_list);
+
+        // if the readerName array is populated, replace the first reader in the list
+        char ReaderCharArray[sizeof(config.reader_name)];
+        wcstombs(ReaderCharArray, config.reader_name, sizeof(ReaderCharArray));
+        if (strcmp(ReaderCharArray, "") != 0)
+        {
+            size_t newLen = strlen(ReaderCharArray) + 1;
+            LPSTR newMszReaders = (LPSTR)malloc(newLen);
+            if (newMszReaders != NULL)
+            {
+                // Copy the new selected reader
+                strcpy(newMszReaders, ReaderCharArray);
+
+                // Update the original pointer to the new modified list
+                reader_list = newMszReaders;
+            }
+            printf("scard_init: Forced using reader : %hs\n", ReaderCharArray);
+        }
+
+        // Connect to reader and send PICC operating params command
+        SCARDHANDLE hCard;
+        DWORD dwActiveProtocol;
+        lRet = SCardConnect(hContext, reader_list, SCARD_SHARE_DIRECT, 0, &hCard, &dwActiveProtocol);
+        if (lRet != SCARD_S_SUCCESS)
+        {
+            printf("scard_init: Error connecting to the reader: 0x%08X\n", lRet);
+            return FALSE;
+        }
+        printf("scard_init: Connected to reader: %s, sending PICC params\n", reader_list);
+
+        // Enable/Disable the buzzer output
+        DWORD cbRecv = MAX_APDU_SIZE;
+        BYTE pbRecv[MAX_APDU_SIZE];
+        lRet = SCardControl(hCard, SCARD_CTL_CODE(3500), config.disable_buzzer ? PARAM_DISABLE_BUZZER : PARAM_ENABLE_BUZZER, sizeof(config.disable_buzzer ? PARAM_DISABLE_BUZZER : PARAM_ENABLE_BUZZER), pbRecv, cbRecv, &cbRecv);
+        if (lRet != SCARD_S_SUCCESS)
+            printf("scard_init: Couldn't %s buzzer : 0x%08X\n", config.disable_buzzer ? "disable" : "enable", lRet);
+        else
+            printf("scard_init: %s buzzer\n", config.disable_buzzer ? "Disabled" : "Enabled");
+
+        // set the reader params to allow reading FeliCa cards.
+        lRet = SCardControl(hCard, SCARD_CTL_CODE(3500), PARAM_SET_PICC, sizeof(PARAM_SET_PICC), pbRecv, cbRecv, &cbRecv);
+        if (lRet != SCARD_S_SUCCESS)
+        {
+            printf("scard_init: Error setting PICC params : 0x%08X\n", lRet);
+            return FALSE;
+        }
+
+        if (cbRecv > 2 && pbRecv[0] != PICC_SUCCESS && pbRecv[1] != PARAM_POLLRATE)
+        {
+            printf("scard_init: PICC params not valid 0x%02X != 0x%02X\n", pbRecv[1], PARAM_POLLRATE);
+            return FALSE;
+        }
+
+        // Disconnect from reader
+        if ((lRet = SCardDisconnect(hCard, SCARD_LEAVE_CARD)) != SCARD_S_SUCCESS)
+            printf("scard_init: Failed SCardDisconnect : 0x%08X\n", lRet);
+
+        printf("scard_init: Using reader : %s\n", reader_list);
+
+        memset(&reader_state, 0, sizeof(SCARD_READERSTATE));
+        reader_state.szReader = reader_list;
+        return TRUE;
+
+    default:
+        printf("scard_init: Failed SCardListReaders: 0x%08X\n", lRet);
+        return FALSE;
+    }
+}
+
+void scard_poll(struct card_data *card_data)
+{
+    lRet = SCardGetStatusChange(hContext, readCooldown, &reader_state, 1);
+    if (lRet == SCARD_E_TIMEOUT)
+    {
+        return;
+    }
+    else if (lRet != SCARD_S_SUCCESS)
+    {
+        printf("scard_poll: Failed SCardGetStatusChange: 0x%08X\n", lRet);
+        return;
+    }
+
+    if (!(reader_state.dwEventState & SCARD_STATE_CHANGED))
+        return;
+
+    DWORD newState = reader_state.dwEventState ^ SCARD_STATE_CHANGED;
+    bool wasCardPresent = (reader_state.dwCurrentState & SCARD_STATE_PRESENT) > 0;
+    if (newState & SCARD_STATE_UNAVAILABLE)
+    {
+        printf("scard_poll: New card state: unavailable\n");
+        Sleep(readCooldown);
+    }
+    else if (newState & SCARD_STATE_EMPTY)
+    {
+        printf("scard_poll: New card state: empty\n");
+        // scard_clear(unit_no);
+    }
+    else if (newState & SCARD_STATE_PRESENT && !wasCardPresent)
+    {
+        printf("scard_poll: New card state: present\n");
+        scard_update(card_data, hContext, reader_state.szReader);
+    }
+
+    reader_state.dwCurrentState = reader_state.dwEventState;
+
+    return;
+}
+
+void scard_update(struct card_data *card_data, SCARDCONTEXT _hContext, LPCTSTR _readerName)
+{
+    printf("scard_update: Update on reader : %s\n", reader_state.szReader);
     // Connect to the smart card.
-    LONG lRet = 0;
     SCARDHANDLE hCard;
     DWORD dwActiveProtocol;
     for (int retry = 0; retry < 100; retry++) // retry times has to be increased since poll rate is set to 500ms
@@ -76,12 +187,11 @@ void scard_poll(uint8_t *buf, SCARDCONTEXT _hContext, LPCTSTR _readerName, uint8
 
     if (lRet != SCARD_S_SUCCESS)
     {
-        printf("%s: Error connecting to the card: 0x%08X\n", module, lRet);
+        printf("scard_update: Error connecting to the card: 0x%08X\n", lRet);
         return;
     }
 
     // set the reader params
-    lRet = 0;
     LPCSCARD_IO_REQUEST pci = dwActiveProtocol == SCARD_PROTOCOL_T1 ? SCARD_PCI_T1 : SCARD_PCI_T0;
     DWORD cbRecv = MAX_APDU_SIZE;
     BYTE pbRecv[MAX_APDU_SIZE];
@@ -94,263 +204,96 @@ void scard_poll(uint8_t *buf, SCARDCONTEXT _hContext, LPCTSTR _readerName, uint8
     lRet = SCardStatus(hCard, szReader, &cchReader, NULL, NULL, atr, &cByteAtr);
     if (lRet != SCARD_S_SUCCESS)
     {
-        printf("%s: Error getting card status: 0x%08X\n", module, lRet);
+        printf("scard_update: Error getting card status: 0x%08X\n", lRet);
         return;
     }
 
     // Only care about 20-byte ATRs returned by arcade-type smart cards
     if (cByteAtr != 20)
     {
-        printf("%s: Ignoring card with len(%d) = %02X (%08X)\n", module, cByteAtr, atr, cByteAtr);
+        printf("scard_update: Ignoring card with len(%zu) = %02x (%08X)\n", sizeof(cByteAtr), (unsigned int)atr, cByteAtr);
         return;
     }
 
-    printf("%s: atr Return: len(%d) = %02X (%08X)\n", module, cByteAtr, atr, cByteAtr);
-
-    // Figure out if we should reverse the UID returned by the card based on the ATR protocol
     BYTE cardProtocol = atr[12];
-    BOOL shouldReverseUid = false;
+    if (cardProtocol == SCARD_ATR_PROTOCOL_ISO14443_PART3) // Handling Aime
-    if (cardProtocol == SCARD_ATR_PROTOCOL_ISO15693_PART3)
     {
-        printf("%s: Card protocol: ISO15693_PART3\n", module);
+        printf("scard_update: Card protocol: ISO14443_PART3\n");
-        shouldReverseUid = true;
-    }
 
-    else if (cardProtocol == SCARD_ATR_PROTOCOL_ISO14443_PART3)
+        printf("scard_update: Loading key for block auth onto reader...\n");
-        printf("%s: Card protocol: ISO14443_PART3\n", module);
-
-    else if (cardProtocol == SCARD_ATR_PROTOCOL_FELICA_212K)
-        printf("%s: Card protocol: FELICA_212K\n", module);
-
-    else if (cardProtocol == SCARD_ATR_PROTOCOL_FELICA_424K)
-        printf("%s: Card protocol: FELICA_424K\n", module);
-
-    else
-    {
-        printf("%s: Unknown NFC Protocol: 0x%02X\n", module, cardProtocol);
-        return;
-    }
-
-    // Read UID
         cbRecv = MAX_APDU_SIZE;
-    if ((lRet = SCardTransmit(hCard, pci, UID_CMD, sizeof(UID_CMD), NULL, pbRecv, &cbRecv)) != SCARD_S_SUCCESS)
+        if ((lRet = SCardTransmit(hCard, pci, PARAM_LOAD_KEY, sizeof(PARAM_LOAD_KEY), NULL, pbRecv, &cbRecv)) != SCARD_S_SUCCESS)
         {
-        printf("%s: Error querying card UID: 0x%08X\n", module, lRet);
+            printf("scard_update: Error loading key to reader : 0x%08X\n", lRet);
             return;
         }
 
         if (cbRecv > 1 && pbRecv[0] == PICC_ERROR)
         {
-        printf("%s: UID query failed\n", module);
+            printf("scard_update: loading key failed\n");
+            return;
+        }
+
+        printf("scard_update: key has been loaded, authenticating block 2...\n");
+
+        cbRecv = MAX_APDU_SIZE;
+        if ((lRet = SCardTransmit(hCard, pci, COMMAND_AUTH_BLOCK2, sizeof(COMMAND_AUTH_BLOCK2), NULL, pbRecv, &cbRecv)) != SCARD_S_SUCCESS)
+        {
+            printf("scard_update: Couldn't authenticate for block 2 : 0x%08X\n", lRet);
+            return;
+        }
+
+        printf("scard_update: authentication successful, reading block 2...\n");
+
+        cbRecv = MAX_APDU_SIZE;
+        if ((lRet = SCardTransmit(hCard, pci, COMMAND_READ_BLOCK2, sizeof(COMMAND_READ_BLOCK2), NULL, pbRecv, &cbRecv)) != SCARD_S_SUCCESS)
+        {
+            printf("scard_update: Couldn't read block 2 : 0x%08X\n", lRet);
+            return;
+        }
+
+        memcpy(card_data->card_id, pbRecv + 6, 10);
+        card_data->card_type = Mifare;
+        return;
+    }
+
+    else if (cardProtocol == SCARD_ATR_PROTOCOL_FELICA_212K) // Handling FeliCa
+    {
+        printf("scard_update: Card protocol: FELICA_212K\n");
+
+        // Read mID
+        cbRecv = MAX_APDU_SIZE;
+        if ((lRet = SCardTransmit(hCard, pci, COMMAND_GET_UID, sizeof(COMMAND_GET_UID), NULL, pbRecv, &cbRecv)) != SCARD_S_SUCCESS)
+        {
+            printf("scard_update: Error querying card UID: 0x%08X\n", lRet);
+            return;
+        }
+
+        if (cbRecv > 1 && pbRecv[0] == PICC_ERROR)
+        {
+            printf("scard_update: UID query failed\n");
             return;
         }
 
         if ((lRet = SCardDisconnect(hCard, SCARD_LEAVE_CARD)) != SCARD_S_SUCCESS)
-        printf("%s: Failed SCardDisconnect: 0x%08X\n", module, lRet);
+            printf("scard_update: Failed SCardDisconnect: 0x%08X\n", lRet);
 
         if (cbRecv < 8)
         {
-        printf("%s: Padding card uid to 8 bytes\n", module);
+            printf("scard_update: Padding card uid to 8 bytes\n");
             memset(&pbRecv[cbRecv], 0, 8 - cbRecv);
         }
         else if (cbRecv > 8)
-        printf("%s: taking first 8 bytes of len(uid) = %02X\n", module, cbRecv);
+            printf("scard_update: taking first 8 bytes of %d received\n", cbRecv);
 
-    // Copy UID to struct, reversing if necessary
+        memcpy(card_data->card_id, pbRecv, 8);
-    card_info_t card_info;
+        card_data->card_type = FeliCa;
-    if (shouldReverseUid)
-        for (DWORD i = 0; i < 8; i++)
-            card_info.uid[i] = pbRecv[7 - i];
-    else
-        memcpy(card_info.uid, pbRecv, 8);
-
-    for (int i = 0; i < 8; ++i)
-        buf[i] = card_info.uid[i];
-}
-
-// void scard_clear(uint8_t unitNo)
-// {
-//     card_info_t empty_cardinfo;
-// }
-
-void scard_update(uint8_t *buf)
-{
-    if (reader_count < 1)
-    {
         return;
     }
 
-    lRet = SCardGetStatusChange(hContext, readCooldown, reader_states, reader_count);
-    if (lRet == SCARD_E_TIMEOUT)
-    {
-        return;
-    }
-    else if (lRet != SCARD_S_SUCCESS)
-    {
-        printf("%s: Failed SCardGetStatusChange: 0x%08X\n", module, lRet);
-        return;
-    }
-
-    for (uint8_t unit_no = 0; unit_no < reader_count; unit_no++)
-    {
-        if (!(reader_states[unit_no].dwEventState & SCARD_STATE_CHANGED))
-            continue;
-
-        DWORD newState = reader_states[unit_no].dwEventState ^ SCARD_STATE_CHANGED;
-        bool wasCardPresent = (reader_states[unit_no].dwCurrentState & SCARD_STATE_PRESENT) > 0;
-        if (newState & SCARD_STATE_UNAVAILABLE)
-        {
-            printf("%s: New card state: unavailable\n", module);
-            Sleep(readCooldown);
-        }
-        else if (newState & SCARD_STATE_EMPTY)
-        {
-            printf("%s: New card state: empty\n", module);
-            // scard_clear(unit_no);
-        }
-        else if (newState & SCARD_STATE_PRESENT && !wasCardPresent)
-        {
-            printf("%s: New card state: present\n", module);
-            scard_poll(buf, hContext, reader_states[unit_no].szReader, unit_no);
-        }
-
-        reader_states[unit_no].dwCurrentState = reader_states[unit_no].dwEventState;
-    }
-
-    return;
-}
-
-bool scard_init()
-{
-    if ((lRet = SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &hContext)) != SCARD_S_SUCCESS)
-    {
-        //  log_warning("scard", "failed to establish SCard context: {}", bin2hex(&lRet, sizeof(LONG)));
-        return lRet;
-    }
-
-    LPCTSTR reader = NULL;
-
-    int readerNameLen = 0;
-
-    // get list of readers
-    LPTSTR reader_list = NULL;
-    auto pcchReaders = SCARD_AUTOALLOCATE;
-    lRet = SCardListReaders(hContext, NULL, (LPTSTR)&reader_list, &pcchReaders);
-
-    int slot0_idx = -1;
-    int slot1_idx = -1;
-    int readerCount = 0;
-    switch (lRet)
-    {
-    case SCARD_E_NO_READERS_AVAILABLE:
-        printf("%s: No readers available\n", module);
-        return FALSE;
-
-    case SCARD_S_SUCCESS:
-
-        // So WinAPI has this terrible "multi-string" concept wherein you have a list
-        // of null-terminated strings, terminated by a double-null.
-        for (reader = reader_list; *reader; reader = reader + lstrlen(reader) + 1)
-        {
-            printf("%s: Found reader: %s\n", module, reader);
-            readerCount++;
-
-            // Connect to reader and send PICC operating params command
-            LONG lRet = 0;
-            SCARDHANDLE hCard;
-            DWORD dwActiveProtocol;
-            lRet = SCardConnect(hContext, reader, SCARD_SHARE_DIRECT, 0, &hCard, &dwActiveProtocol);
-            if (lRet != SCARD_S_SUCCESS)
-            {
-                printf("%s: Error connecting to the reader: 0x%08X\n", module, lRet);
-                continue;
-            }
-            printf("%s: Connected to reader: %s, sending PICC operating params command\n", module, reader);
-
-            // set the reader params
-            lRet = 0;
-            DWORD cbRecv = MAX_APDU_SIZE;
-            BYTE pbRecv[MAX_APDU_SIZE];
-            lRet = SCardControl(hCard, SCARD_CTL_CODE(3500), PICC_OPERATING_PARAM_CMD, sizeof(PICC_OPERATING_PARAM_CMD), pbRecv, cbRecv, &cbRecv);
-            Sleep(100);
-            if (lRet != SCARD_S_SUCCESS)
-            {
-                printf("%s: Error setting PICC params: 0x%08X\n", module, lRet);
-                return FALSE;
-            }
-
-            if (cbRecv > 2 && pbRecv[0] != PICC_SUCCESS && pbRecv[1] != PICC_OPERATING_PARAMS)
-            {
-                printf("%s: PICC params not valid 0x%02X != 0x%02X\n", module, pbRecv[1], PICC_OPERATING_PARAMS);
-                return FALSE;
-            }
-
-            // Disconnect from reader
-            if ((lRet = SCardDisconnect(hCard, SCARD_LEAVE_CARD)) != SCARD_S_SUCCESS)
-            {
-                printf("%s: Failed SCardDisconnect: 0x%08X\n", module, lRet);
-            }
     else
     {
-                printf("%s: Disconnected from reader: %s, this is expected behavior\n", module, reader);
+        printf("scard_update: Unknown NFC Protocol: 0x%02X\n", cardProtocol);
-            }
+        return;
-        }
-
-        // If we have at least two readers, assign readers to slots as necessary.
-        if (readerCount >= 2)
-        {
-            if (slot1_idx != 0)
-                slot0_idx = 0;
-            if (slot0_idx != 1)
-                slot1_idx = 1;
-        }
-
-        // if the reader count is 1 and no reader was set, set first reader
-        if (readerCount == 1 && slot0_idx < 0 && slot1_idx < 0)
-            slot0_idx = 0;
-
-        // If we somehow only found slot 1, promote slot 1 to slot 0.
-        if (slot0_idx < 0 && slot1_idx >= 0)
-        {
-            slot0_idx = slot1_idx;
-            slot1_idx = -1;
-        }
-
-        // Extract the relevant names from the multi-string.
-        int i;
-        for (i = 0, reader = reader_list; *reader; reader = reader + lstrlen(reader) + 1, i++)
-        {
-            if (slot0_idx == i)
-            {
-                readerNameLen = lstrlen(reader);
-                reader_name_slots[0] = (LPTSTR)HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS, sizeof(TCHAR) * (readerNameLen + 1));
-                memcpy(reader_name_slots[0], &reader[0], (size_t)(readerNameLen + 1));
-            }
-            if (slot1_idx == i)
-            {
-                readerNameLen = lstrlen(reader);
-                reader_name_slots[1] = (LPTSTR)HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS, sizeof(TCHAR) * (readerNameLen + 1));
-                memcpy(reader_name_slots[1], &reader[0], (size_t)(readerNameLen + 1));
-            }
-        }
-
-        if (reader_name_slots[0])
-            printf("%s: Using reader slot 0: %s\n", module, reader_name_slots[0]);
-
-        if (reader_name_slots[1])
-            printf("%s: Using reader slot 1: %s\n", module, reader_name_slots[1]);
-
-        reader_count = reader_name_slots[1] ? 2 : 1;
-
-        memset(&reader_states[0], 0, sizeof(SCARD_READERSTATE));
-        reader_states[0].szReader = reader_name_slots[0];
-
-        memset(&reader_states[1], 0, sizeof(SCARD_READERSTATE));
-        reader_states[1].szReader = reader_name_slots[1];
-        return TRUE;
-
-    default:
-        printf("%s: Failed SCardListReaders: 0x%08X\n", module, lRet);
-        return FALSE;
     }
 }

src/scard/scard.h

@@ -24,23 +24,42 @@
  */
 
 #pragma once
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
 #include <winscard.h>
-#include <windows.h>
+#include <src/aimeio.h>
 
-// cardinfo_t is a description of a card that was presented to a reader
+// Card types
-typedef struct card_info
+enum AIME_CARDTYPE
 {
-    int card_type;
+    Mifare = 0x01,
-    uint8_t uid[8];
+    FeliCa = 0x02
-} card_info_t;
+};
 
-void scard_update(uint8_t *buf);
+// Structure containing card_type and card_id
+struct card_data
+{
+    uint8_t card_type;
+    uint8_t card_id[32];
+};
 
-void scard_poll(uint8_t *buf, SCARDCONTEXT _hContext, LPCTSTR _readerName, uint8_t unit_no);
+/*
+    Initialize the smartcard reader
 
-void scard_clear(uint8_t unitNo);
+    - config: struct loaded from segatools.ini
+*/
+bool scard_init(struct aime_io_config config);
 
-bool scard_init();
+/*
+    Checks if a new card has been detected
+
+    - card_data: struct containing the card data
+*/
+void scard_poll(struct card_data *card_data);
+
+/*
+    Read the card's data
+
+    - card_data: struct containing the card data
+    - _hContext: context for the card reader
+    - _readerName: name of the card reader to use
+*/
+void scard_update(struct card_data *card_data, SCARDCONTEXT _hContext, LPCTSTR _readerName);