solarium.vlad/PROJECT/drivers/mfrc522/mfrc522data.c

#include "mfrc522data.h"
#include <includes.h>

#include "rfid-spi.h"
#include "time.h"

mifaredata_t mifare_card_data;

mifaredata_t* get_mifare_data()
{
    return &mifare_card_data;
}

void set_mifare_data(mifaredata_t* data)
{
    memcpy(&mifare_card_data, &data, sizeof(mifaredata_t));
}

mifaredata_t* read_mifare_card()
{
    status_code status;
    uint8_t block = 8;
    uint8_t len = 18;
    uint8_t buffer[18];

    MIFARE_Key key;
    for (uint8_t i = 0; i < 6; i++) key.keyByte[i] = 0xFF;
    
    for(uint8_t i = 0; i < sizeof(mifare_card_data); i += 16)
    {
        status = pcd_authenticate(PICC_CMD_MF_AUTH_KEY_A, block, &key, get_uid());
        if (status != STATUS_OK) {
          return NULL;
        }

        status = mifare_read(block, buffer, &len);
        if (status != STATUS_OK) {
          return NULL;
        }

        block++;
        
        for (uint8_t j = 0; j < 16; j++) {
            ((uint8_t *)&mifare_card_data)[i + j] = buffer[j];
        }
        
        break;
    }
    
    //stop_card_working();
    
    return &mifare_card_data;
}

bool write_mifare_card()
{
    status_code status;
    uint8_t block = 8;

    MIFARE_Key key;
    for (uint8_t i = 0; i < 6; i++) key.keyByte[i] = 0xFF;
    
    for(uint8_t i = 0; i < sizeof(mifare_card_data); i += 16)
    {
        status = pcd_authenticate(PICC_CMD_MF_AUTH_KEY_A, block, &key, get_uid());
        if (status != STATUS_OK) {
          return false;
        }

        status = mifare_write(block, &(((uint8_t *)&mifare_card_data)[i]), 16);
        if (status != STATUS_OK) {
          return false;
        }

        block++;
        
        break;
    }
    
    //stop_card_working();
    
    return true;
}

void stop_card_working()
{
    picc_halt_a();
    pcd_stop_cryptol();
}

mifaredata_t* init_mifare_card_data()
{
    for(uint8_t i = 0; i < sizeof(mifare_card_data); i++)
    {
      ((uint8_t *)&mifare_card_data)[i] = 0x00;
    }
    
    mifare_card_data.init = 0xDEADBEEF;
    mifare_card_data.uid[0] = 0x5555AAAA;
    mifare_card_data.uid[1] = 0xEEEEFFFF;
    mifare_card_data.uid[2] = 0x11112222;

    return &mifare_card_data;
}

bool is_empty_mifare_card()
{
    return mifare_card_data.init != 0xDEADBEEF;
}

bool need_clear_bonus()
{
  uint32_t SystemTime = GetTimeSec();

  if(SystemTime > mifare_card_data.best_before)
  {
      mifare_card_data.bonus = 0;
      return true;
  }

  return false;
}