ccid.h

#pragma once

#include <stdlib.h> // malloc
#include <stdint.h> // uint32_t
#include <stdarg.h> // __VA_ARGS__
#include <string.h>
#include <stdio.h>

#include "seader_bridge.h"
#include "seader_worker_i.h"

#define SYNC (0x03)
#define CTRL (0x06)
#define NAK  (0x15)

#define BMICCSTATUS_MASK 0x03
/*
 * Bit 0 = Slot 0 current state
 * Bit 1 = Slot 0 changed status
 * Bit 2 = Slot 1 current state
 * Bit 3 = Slot 1 changed status
 */

// TODO: rename/renumber
#define SLOT_0_MASK 0x03
#define CARD_OUT_1  0x02
#define CARD_IN_1   0x03
#define SLOT_1_MASK 0x0C
#define CARD_IN_2   0x04
#define CARD_OUT_2  0x0C

/*
 *  * BULK_OUT messages from PC to Reader
 *   * Defined in CCID Rev 1.1 6.1 (page 26)
 *    */
#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn                   0x62
#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff                  0x63
#define CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus                0x65
#define CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock                     0x6f
#define CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters                0x6c
#define CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters              0x6d
#define CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters                0x61
#define CCID_MESSAGE_TYPE_PC_to_RDR_Escape                       0x6b
#define CCID_MESSAGE_TYPE_PC_to_RDR_IccClock                     0x6e
#define CCID_MESSAGE_TYPE_PC_to_RDR_T0APDU                       0x6a
#define CCID_MESSAGE_TYPE_PC_to_RDR_Secure                       0x69
#define CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical                   0x71
#define CCID_MESSAGE_TYPE_PC_to_RDR_Abort                        0x72
#define CCID_MESSAGE_TYPE_PC_to_RDR_SetDataRateAndClockFrequency 0x73
/*
 *  * BULK_IN messages from Reader to PC
 *   * Defined in CCID Rev 1.1 6.2 (page 48)
 *    */
#define CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock                    0x80
#define CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus                   0x81
#define CCID_MESSAGE_TYPE_RDR_to_PC_Parameters                   0x82
#define CCID_MESSAGE_TYPE_RDR_to_PC_Escape                       0x83
#define CCID_MESSAGE_TYPE_RDR_to_PC_DataRateAndClockFrequency    0x84
/*
 *  * INTERRUPT_IN messages from Reader to PC
 *   * Defined in CCID Rev 1.1 6.3 (page 56)
 *    */
#define CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange             0x50
#define CCID_MESSAGE_TYPE_RDR_to_PC_HardwareError                0x51

/* Status codes that go in bStatus (see 6.2.6) */
enum {
    ICC_STATUS_PRESENT_ACTIVE = 0,
    ICC_STATUS_PRESENT_INACTIVE,
    ICC_STATUS_NOT_PRESENT
};
enum {
    COMMAND_STATUS_NO_ERROR = 0,
    COMMAND_STATUS_FAILED,
    COMMAND_STATUS_TIME_EXTENSION_REQUIRED
};
/* Error codes that go in bError (see 6.2.6) */
enum {
    ERROR_CMD_NOT_SUPPORTED = 0,
    ERROR_CMD_ABORTED = -1,
    ERROR_ICC_MUTE = -2,
    ERROR_XFR_PARITY_ERROR = -3,
    ERROR_XFR_OVERRUN = -4,
    ERROR_HW_ERROR = -5,
};

struct CCID_Message {
    uint8_t bMessageType;
    uint32_t dwLength;
    uint8_t bSlot;
    uint8_t bSeq;
    uint8_t bStatus;
    uint8_t bError;

    uint8_t* payload;
    size_t consumed;
};

void seader_ccid_check_for_sam(SeaderUartBridge* seader_uart);
void seader_ccid_IccPowerOn(SeaderUartBridge* seader_uart, uint8_t slot);
void seader_ccid_GetSlotStatus(SeaderUartBridge* seader_uart, uint8_t slot);
void seader_ccid_SetParameters(Seader* seader, uint8_t slot, uint8_t* atr, size_t atr_len);
void seader_ccid_GetParameters(SeaderUartBridge* seader_uart);
void seader_ccid_XfrBlock(SeaderUartBridge* seader_uart, uint8_t* data, size_t len);
void seader_ccid_XfrBlockToSlot(
    SeaderUartBridge* seader_uart,
    uint8_t slot,
    uint8_t* data,
    size_t len);
size_t seader_ccid_process(Seader* seader, uint8_t* cmd, size_t cmd_len);