bananatools/board/bpreader.h

#pragma once
#include <windows.h>
#include <stdint.h>
#include <stdbool.h>

struct bpreader_config {
    bool enable;
    uint16_t port;
    uint8_t insert_card;
    wchar_t access_code[21];
    uint8_t access_code_bytes[10];
};

HRESULT bpreader_init(struct bpreader_config *cfg, uint16_t port);

/*
bpreader packet format WIP
maybe rcs956?
Response packet
| Offset | Meaning                                                            |
|--------|--------------------------------------------------------------------|
| 0      | Preamble, Always 00                                                |
| 1      | Packet start, Always 00                                            |
| 2      | Always FF                                                          | Header
| 3      | len(Data), 0 means no data                                         |
| 4      | (0x100 - data_len) & FF if data is present                         |
|--------|--------------------------------------------------------------------|
| 5      | Always 0xD5 (success) or 0x7F (failure)                            |
| 6      | Command if data is present                                         | Data
| 7..n-2 | Data if data is present                                            |
|--------|--------------------------------------------------------------------|
| n-1    | (FF - sum of data bytes) & FF if data is present, else FF          | Footer
| n      | Postamble, Always 00                                               |
*/

#pragma pack(push, 1)
struct bpreader_cmd_header {
    uint8_t padding0_00;
    uint8_t padding1_00;
    uint8_t padding2_ff;
    uint8_t data_len;
    uint8_t header_checksum;
    uint8_t d_identifier;
    uint8_t cmd;
};

struct bpreader_cmd_footer {    
    uint8_t checksum;
    uint8_t padding;
};

struct bpreader_read_mifare_req {
    uint8_t unk0;
    uint8_t subcmd; // 0x30 for read, 0x60/61 for write?
    uint8_t block;
};

struct bpreader_read_mifare_resp_data {
    uint8_t padding;
    uint8_t block[16];
};

struct bpreader_poll_banapass_data {
    uint8_t card_present;
    uint8_t unknown1; // 0x01
    uint8_t atqa[2];
    uint8_t sak;
    uint8_t unknown5; // 0x04
    uint8_t serial_number[4]; // first 4 bytes of Chip ID
};

struct bpreader_poll_felica_data {
    uint8_t card_present;
    uint8_t unknown1; // 0x01
    uint8_t unknown2[2]; // 0x14, 0x01
    uint8_t idm[8];
    uint8_t pmm[8];
    uint8_t system_code[2];
};
#pragma pack(pop)