372 lines
11 KiB
C
372 lines
11 KiB
C
#if defined(__AVR_ATmega32U4__)
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#pragma message "当前的开发板是 ATmega32U4"
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#define SerialDevice SerialUSB
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#define PN532_SPI_SS 10
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#define LED_PIN A3
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#elif defined(ESP8266)
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#pragma message "当前的开发板是 ESP8266"
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#define SerialDevice Serial
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#define PN532_SPI_SS D4
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#define LED_PIN D5
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#elif defined(ESP32)
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#pragma message "当前的开发板是 ESP32"
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#define SerialDevice Serial
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#define PN532_SPI_SS 5
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#define LED_PIN 13
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#else
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#error "未经测试的开发板，请检查串口和针脚定义"
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#endif
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#if defined(PN532_SPI_SS)
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#pragma message "使用 SPI 连接 PN532"
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#include <PN532_SPI.h>
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PN532_SPI pn532(SPI, PN532_SPI_SS);
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#elif defined(PN532_HSU_Device)
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#pragma message "使用 HSU 连接 PN532"
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#include <PN532_HSU.h>
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PN532_HSU pn532(PN532_HSU_Device);
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#else
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#pragma message "使用 I2C 连接 PN532"
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#include <PN532_I2C.h>
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PN532_I2C pn532(Wire);
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#endif
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#include "PN532.h"
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PN532 nfc(pn532);
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#ifdef high_baudrate
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#pragma message "high_baudrate 已启用"
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#define baudrate 115200
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#define BootColor 0x0000FF
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#define fw_version "\x94"
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#define hw_version "837-15396"
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#define led_info "000-00000\xFF\x11\x40"
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#else
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#define baudrate 38400
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#define BootColor 0x00FF00
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#define fw_version "TN32MSEC003S F/W Ver1.2"
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#define hw_version "TN32MSEC003S H/W Ver3.0"
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#define led_info "15084\xFF\x10\x00\x12"
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#endif
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#include "FastLED.h"
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#define NUM_LEDS 8
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CRGB leds[NUM_LEDS];
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uint8_t KeyA[6], KeyB[6]; // 用于存储 MIFARE key
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enum { // 命令标记
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CMD_GET_FW_VERSION = 0x30,
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CMD_GET_HW_VERSION = 0x32,
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// Card read
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CMD_START_POLLING = 0x40,
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CMD_STOP_POLLING = 0x41,
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CMD_CARD_DETECT = 0x42,
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CMD_CARD_SELECT = 0x43,
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CMD_CARD_HALT = 0x44,
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// MIFARE
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CMD_MIFARE_KEY_SET_A = 0x50,
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CMD_MIFARE_AUTHORIZE_A = 0x51,
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CMD_MIFARE_READ = 0x52,
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// CMD_MIFARE_WRITE = 0x53,
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CMD_MIFARE_KEY_SET_B = 0x54,
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CMD_MIFARE_AUTHORIZE_B = 0x55,
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// Boot,update
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CMD_TO_UPDATER_MODE = 0x60,
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CMD_SEND_HEX_DATA = 0x61,
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CMD_TO_NORMAL_MODE = 0x62,
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CMD_FIRMWARE_UPDATE = 0x64,
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// CMD_SEND_BINDATA_INIT = 0x63,
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// CMD_SEND_BINDATA_EXEC = 0x64,
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// FeliCa
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// CMD_FELICA_PUSH = 0x70,
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CMD_FELICA_THROUGH = 0x71,
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// LED board
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CMD_EXT_BOARD_LED = 0x80,
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CMD_EXT_BOARD_LED_RGB = 0x81,
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CMD_EXT_BOARD_LED_RGB_UNKNOWN = 0x82, // 未知
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CMD_EXT_BOARD_INFO = 0xf0,
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CMD_EXT_FIRM_SUM = 0xf2,
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CMD_EXT_SEND_HEX_DATA = 0xf3,
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CMD_EXT_TO_BOOT_MODE = 0xf4,
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CMD_EXT_TO_NORMAL_MODE = 0xf5,
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};
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enum { // FeliCa 专用，在 CMD_FELICA_THROUGH 命令使用
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FelicaPolling = 0x00,
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FelicaReqResponce = 0x04,
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FelicaReadWithoutEncryptData = 0x06,
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FelicaWriteWithoutEncryptData = 0x08,
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FelicaReqSysCode = 0x0C,
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FelicaActive2 = 0xA4,
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};
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enum { // 命令执行状态，res 数据包专用
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STATUS_OK = 0x00,
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STATUS_CARD_ERROR = 0x01,
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STATUS_NOT_ACCEPT = 0x02,
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STATUS_INVALID_COMMAND = 0x03,
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STATUS_INVALID_DATA = 0x04,
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STATUS_SUM_ERROR = 0x05,
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STATUS_INTERNAL_ERROR = 0x06,
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STATUS_INVALID_FIRM_DATA = 0x07,
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STATUS_FIRM_UPDATE_SUCCESS = 0x08,
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STATUS_COMP_DUMMY_2ND = 0x10,
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STATUS_COMP_DUMMY_3RD = 0x20,
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};
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typedef union { // 大小为 128 bytes 的联合体，用于存储收到的请求命令数据
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uint8_t bytes[128];
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struct {
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uint8_t frame_len; // 数据包长度，不包含转义符
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uint8_t addr;
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uint8_t seq_no; // 数据包序号
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uint8_t cmd; // 命令标记
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uint8_t payload_len; // 后续数据长度
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union {
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uint8_t key[6]; // CMD_MIFARE_KEY_SET
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uint8_t color_payload[3]; // CMD_EXT_BOARD_LED_RGB
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struct { // CMD_CARD_SELECT,AUTHORIZE,READ
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uint8_t uid[4];
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uint8_t block_no;
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};
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struct { // CMD_FELICA_THROUGH
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uint8_t encap_IDm[8];
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uint8_t encap_len;
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uint8_t encap_code;
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union {
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struct { // CMD_FELICA_THROUGH_POLL
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uint8_t poll_systemCode[2];
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uint8_t poll_requestCode;
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uint8_t poll_timeout;
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};
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struct { // CMD_FELICA_THROUGH_READ,WRITE,NDA_A4
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uint8_t RW_IDm[8];
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uint8_t numService;
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uint8_t serviceCodeList[2];
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uint8_t numBlock;
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uint8_t blockList[1][2]; // CMD_FELICA_THROUGH_READ
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uint8_t blockData[16]; // CMD_FELICA_THROUGH_WRITE
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};
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uint8_t felica_payload[1];
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};
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};
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};
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};
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} packet_request_t;
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typedef union {// 大小为 128 bytes 的联合体，用于存储读卡器准备回复的数据
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uint8_t bytes[128];
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struct {
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uint8_t frame_len; // 数据包长度，不包含转义符
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uint8_t addr;
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uint8_t seq_no; // 数据包序号，需要和请求包对应
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uint8_t cmd;// 命令标记
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uint8_t status; // 命令执行状态标记
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uint8_t payload_len;// 后续数据长度
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union {
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uint8_t version[1]; // CMD_GET_FW_VERSION,CMD_GET_HW_VERSION,CMD_EXT_BOARD_INFO
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uint8_t block[16]; // CMD_MIFARE_READ
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struct { // CMD_CARD_DETECT
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uint8_t count;
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uint8_t type;
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uint8_t id_len;
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union {
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uint8_t mifare_uid[7]; // 可以读取 MIFARE Ultralight，但游戏不支持
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struct {
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uint8_t IDm[8];
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uint8_t PMm[8];
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};
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};
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};
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struct { // CMD_FELICA_THROUGH
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uint8_t encap_len;
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uint8_t encap_code;
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uint8_t encap_IDm[8];
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union {
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struct { // FELICA_CMD_POLL
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uint8_t poll_PMm[8];
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uint8_t poll_systemCode[2];
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};
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struct {
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uint8_t RW_status[2];
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uint8_t numBlock;
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uint8_t blockData[4][16];
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};
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uint8_t felica_payload[1];
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};
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};
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};
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};
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} packet_response_t;
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packet_request_t req;
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packet_response_t res;
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// 读取数据状态，作为全局对象初始化，在 packet_read 读取超时后，下次执行可以接上进度
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uint8_t len, r, checksum;
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bool escape = false;
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uint8_t packet_read() { // 数据包读取函数
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while (SerialDevice.available()) {
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r = SerialDevice.read();
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if (r == 0xE0) { // 检测到包头，重置包长度
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req.frame_len = 0xFF;
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continue;
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}
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if (req.frame_len == 0xFF) { // 设置包长度
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req.frame_len = r;
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len = 0;
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checksum = r;
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continue;
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}
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if (r == 0xD0) { // 读取到转义符，设置转义标记
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escape = true;
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continue;
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}
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if (escape) { // 转义处理
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r++;
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escape = false;
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}
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req.bytes[++len] = r;
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if (len == req.frame_len) { // 长度正确且校验通过，则返回命令标记，否则返回 STATUS_SUM_ERROR
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if (req.cmd == CMD_FIRMWARE_UPDATE) return CMD_FIRMWARE_UPDATE; //如果命令为0x64，则不校验checksum
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return checksum == r ? req.cmd : STATUS_SUM_ERROR;
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}
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checksum += r; // 包头后每位数据（不含转义）相加，作为校验值
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}
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return 0; // 数据包未读取完成
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}
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void packet_write() {
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uint8_t checksum = 0, len = 0;
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if (res.cmd == 0) { // 无待发数据
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return;
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}
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SerialDevice.write(0xE0);
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while (len <= res.frame_len) {
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uint8_t w;
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if (len == res.frame_len) { // 包数据已写入完成，发送校验值
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w = checksum;
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} else {
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w = res.bytes[len];
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checksum += w; // 包头后每位数据（不含转义）相加，作为校验值
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}
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if (w == 0xE0 || w == 0xD0) { // 转义符写入
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SerialDevice.write(0xD0);
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SerialDevice.write(--w);
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} else {
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SerialDevice.write(w);
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}
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len++;
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}
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res.cmd = 0;
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}
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void res_init(uint8_t payload_len = 0) { // 通用回复生成，参数指定不含包头的数据长度
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res.frame_len = 6 + payload_len;
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res.addr = req.addr;
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res.seq_no = req.seq_no;
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res.cmd = req.cmd;
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res.status = STATUS_OK; // 默认命令执行状态标记
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res.payload_len = payload_len;
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}
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void sys_to_normal_mode() { // 作用未知，根据 cmd 猜测
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res_init();
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if (nfc.getFirmwareVersion()) {
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res.status = STATUS_INVALID_COMMAND; // 在 837-15396 和 TN32MSEC003S 串口数据确认
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} else {
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res.status = STATUS_INTERNAL_ERROR;
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FastLED.showColor(0xFF0000);
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}
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}
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void sys_get_fw_version() { // 版本数据，通过串口数据确认，在读卡器测试界面显示
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res_init(sizeof(fw_version) - 1);
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memcpy(res.version, fw_version, res.payload_len);
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}
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void sys_get_hw_version() { // 版本数据，通过串口数据确认，在读卡器测试界面显示
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res_init(sizeof(hw_version) - 1);
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memcpy(res.version, hw_version, res.payload_len);
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}
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void sys_get_led_info() { // 版本数据，通过串口数据确认
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res_init(sizeof(led_info) - 1);
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memcpy(res.version, led_info, res.payload_len);
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}
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void nfc_start_polling() { // 作用未知，根据 cmd 猜测，开始读卡
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res_init();
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nfc.setRFField(0x00, 0x01);
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}
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void nfc_stop_polling() { // 作用未知，根据 cmd 猜测，停止读卡
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res_init();
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nfc.setRFField(0x00, 0x00);
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}
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void nfc_card_detect() { // 读取卡片类型
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uint16_t SystemCode;
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uint8_t bufferLength;
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// MIFARE
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if (nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, res.mifare_uid, &res.id_len)) {
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res_init(res.id_len + 3);
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res.count = 1;
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res.type = 0x10;
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// FeliCa
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} else if (nfc.felica_Polling(0xFFFF, 0x00, res.IDm, res.PMm, &SystemCode, 200) == 1) {
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res_init(0x13);
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res.count = 1;
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res.type = 0x20;
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res.id_len = 0x10;
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} else {
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res_init(1);
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res.count = 0;
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}
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}
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void nfc_mifare_authorize_a() { // 对 MIFARE 使用 KeyA 认证
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res_init();
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if (!nfc.mifareclassic_AuthenticateBlock(req.uid, 4, req.block_no, 0, KeyA)) {
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res.status = STATUS_CARD_ERROR;
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}
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}
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void nfc_mifare_authorize_b() {// 对 MIFARE 使用 KeyB 认证
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res_init();
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if (!nfc.mifareclassic_AuthenticateBlock(req.uid, 4, req.block_no, 1, KeyB)) {
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res.status = STATUS_CARD_ERROR;
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}
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}
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void nfc_mifare_read() { // 认证成功后，读取 MIFARE 指定的 block
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res_init(0x10);
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if (!nfc.mifareclassic_ReadDataBlock(req.block_no, res.block)) {
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res_init();
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res.status = STATUS_CARD_ERROR;
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}
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}
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// 游戏发送的0x71命令后面的包实际上是完整的与Felica卡片直接通信的包，可以转发进PN532库直接用
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// response也可以直接打包转发回游戏
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void nfc_felica_through() { // FeliCa 处理函数
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uint8_t response_length = 0;
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if (nfc.inDataExchange(&req.encap_len, req.encap_len, &res.encap_len, &response_length)) {
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res_init(response_length);
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//如果成功的话 res.encap_len == response_length
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} else {
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res_init(0);
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res.status = STATUS_CARD_ERROR;
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// 数据交换失败时返回STATUS_CARD_ERROR触发重传
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// 不对数据交换失败时做特殊处理，直接返回STATUS_CARD_ERROR。可能导致部分卡片（国产手机+aicemu）读取失败。
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}
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}
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