Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 1507 deletions

diff --git a/qemu/hw/usb/dev-smartcard-reader.c b/qemu/hw/usb/dev-smartcard-reader.c
deleted file mode 100644
index af4b85135..000000000
--- a/qemu/hw/usb/dev-smartcard-reader.c
+++ /dev/null
@@ -1,1507 +0,0 @@
-/*
- * Copyright (C) 2011 Red Hat, Inc.
- *
- * CCID Device emulation
- *
- * Written by Alon Levy, with contributions from Robert Relyea.
- *
- * Based on usb-serial.c, see its copyright and attributions below.
- *
- * This work is licensed under the terms of the GNU GPL, version 2.1 or later.
- * See the COPYING file in the top-level directory.
- * ------- (original copyright & attribution for usb-serial.c below) --------
- * Copyright (c) 2006 CodeSourcery.
- * Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org>
- * Written by Paul Brook, reused for FTDI by Samuel Thibault,
- */
-
-/*
- * References:
- *
- * CCID Specification Revision 1.1 April 22nd 2005
- *  "Universal Serial Bus, Device Class: Smart Card"
- *  Specification for Integrated Circuit(s) Cards Interface Devices
- *
- * Endianness note: from the spec (1.3)
- *  "Fields that are larger than a byte are stored in little endian"
- *
- * KNOWN BUGS
- * 1. remove/insert can sometimes result in removed state instead of inserted.
- * This is a result of the following:
- *  symptom: dmesg shows ERMOTEIO (-121), pcscd shows -99. This can happen
- *  when a short packet is sent, as seen in uhci-usb.c, resulting from a urb
- *  from the guest requesting SPD and us returning a smaller packet.
- *  Not sure which messages trigger this.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "qemu/error-report.h"
-#include "hw/usb.h"
-#include "hw/usb/desc.h"
-
-#include "ccid.h"
-
-#define DPRINTF(s, lvl, fmt, ...) \
-do { \
-    if (lvl <= s->debug) { \
-        printf("usb-ccid: " fmt , ## __VA_ARGS__); \
-    } \
-} while (0)
-
-#define D_WARN 1
-#define D_INFO 2
-#define D_MORE_INFO 3
-#define D_VERBOSE 4
-
-#define CCID_DEV_NAME "usb-ccid"
-#define USB_CCID_DEV(obj) OBJECT_CHECK(USBCCIDState, (obj), CCID_DEV_NAME)
-/*
- * The two options for variable sized buffers:
- * make them constant size, for large enough constant,
- * or handle the migration complexity - VMState doesn't handle this case.
- * sizes are expected never to be exceeded, unless guest misbehaves.
- */
-#define BULK_OUT_DATA_SIZE 65536
-#define PENDING_ANSWERS_NUM 128
-
-#define BULK_IN_BUF_SIZE 384
-#define BULK_IN_PENDING_NUM 8
-
-#define CCID_MAX_PACKET_SIZE                64
-
-#define CCID_CONTROL_ABORT                  0x1
-#define CCID_CONTROL_GET_CLOCK_FREQUENCIES  0x2
-#define CCID_CONTROL_GET_DATA_RATES         0x3
-
-#define CCID_PRODUCT_DESCRIPTION        "QEMU USB CCID"
-#define CCID_VENDOR_DESCRIPTION         "QEMU"
-#define CCID_INTERFACE_NAME             "CCID Interface"
-#define CCID_SERIAL_NUMBER_STRING       "1"
-/*
- * Using Gemplus Vendor and Product id
- * Effect on various drivers:
- *  usbccid.sys (winxp, others untested) is a class driver so it doesn't care.
- *  linux has a number of class drivers, but openct filters based on
- *   vendor/product (/etc/openct.conf under fedora), hence Gemplus.
- */
-#define CCID_VENDOR_ID                  0x08e6
-#define CCID_PRODUCT_ID                 0x4433
-#define CCID_DEVICE_VERSION             0x0000
-
-/*
- * 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
-
-/*
- * Endpoints for CCID - addresses are up to us to decide.
- * To support slot insertion and removal we must have an interrupt in ep
- * in addition we need a bulk in and bulk out ep
- * 5.2, page 20
- */
-#define CCID_INT_IN_EP       1
-#define CCID_BULK_IN_EP      2
-#define CCID_BULK_OUT_EP     3
-
-/* bmSlotICCState masks */
-#define SLOT_0_STATE_MASK    1
-#define SLOT_0_CHANGED_MASK  2
-
-/* 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,
-};
-
-/* 6.2.6 RDR_to_PC_SlotStatus definitions */
-enum {
-    CLOCK_STATUS_RUNNING = 0,
-    /*
-     * 0 - Clock Running, 1 - Clock stopped in State L, 2 - H,
-     * 3 - unknown state. rest are RFU
-     */
-};
-
-typedef struct QEMU_PACKED CCID_Header {
-    uint8_t     bMessageType;
-    uint32_t    dwLength;
-    uint8_t     bSlot;
-    uint8_t     bSeq;
-} CCID_Header;
-
-typedef struct QEMU_PACKED CCID_BULK_IN {
-    CCID_Header hdr;
-    uint8_t     bStatus;        /* Only used in BULK_IN */
-    uint8_t     bError;         /* Only used in BULK_IN */
-} CCID_BULK_IN;
-
-typedef struct QEMU_PACKED CCID_SlotStatus {
-    CCID_BULK_IN b;
-    uint8_t     bClockStatus;
-} CCID_SlotStatus;
-
-typedef struct QEMU_PACKED CCID_T0ProtocolDataStructure {
-    uint8_t     bmFindexDindex;
-    uint8_t     bmTCCKST0;
-    uint8_t     bGuardTimeT0;
-    uint8_t     bWaitingIntegerT0;
-    uint8_t     bClockStop;
-} CCID_T0ProtocolDataStructure;
-
-typedef struct QEMU_PACKED CCID_T1ProtocolDataStructure {
-    uint8_t     bmFindexDindex;
-    uint8_t     bmTCCKST1;
-    uint8_t     bGuardTimeT1;
-    uint8_t     bWaitingIntegerT1;
-    uint8_t     bClockStop;
-    uint8_t     bIFSC;
-    uint8_t     bNadValue;
-} CCID_T1ProtocolDataStructure;
-
-typedef union CCID_ProtocolDataStructure {
-    CCID_T0ProtocolDataStructure t0;
-    CCID_T1ProtocolDataStructure t1;
-    uint8_t data[7]; /* must be = max(sizeof(t0), sizeof(t1)) */
-} CCID_ProtocolDataStructure;
-
-typedef struct QEMU_PACKED CCID_Parameter {
-    CCID_BULK_IN b;
-    uint8_t     bProtocolNum;
-    CCID_ProtocolDataStructure abProtocolDataStructure;
-} CCID_Parameter;
-
-typedef struct QEMU_PACKED CCID_DataBlock {
-    CCID_BULK_IN b;
-    uint8_t      bChainParameter;
-    uint8_t      abData[0];
-} CCID_DataBlock;
-
-/* 6.1.4 PC_to_RDR_XfrBlock */
-typedef struct QEMU_PACKED CCID_XferBlock {
-    CCID_Header  hdr;
-    uint8_t      bBWI; /* Block Waiting Timeout */
-    uint16_t     wLevelParameter; /* XXX currently unused */
-    uint8_t      abData[0];
-} CCID_XferBlock;
-
-typedef struct QEMU_PACKED CCID_IccPowerOn {
-    CCID_Header hdr;
-    uint8_t     bPowerSelect;
-    uint16_t    abRFU;
-} CCID_IccPowerOn;
-
-typedef struct QEMU_PACKED CCID_IccPowerOff {
-    CCID_Header hdr;
-    uint16_t    abRFU;
-} CCID_IccPowerOff;
-
-typedef struct QEMU_PACKED CCID_SetParameters {
-    CCID_Header hdr;
-    uint8_t     bProtocolNum;
-    uint16_t   abRFU;
-    CCID_ProtocolDataStructure abProtocolDataStructure;
-} CCID_SetParameters;
-
-typedef struct CCID_Notify_Slot_Change {
-    uint8_t     bMessageType; /* CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange */
-    uint8_t     bmSlotICCState;
-} CCID_Notify_Slot_Change;
-
-/* used for DataBlock response to XferBlock */
-typedef struct Answer {
-    uint8_t slot;
-    uint8_t seq;
-} Answer;
-
-/* pending BULK_IN messages */
-typedef struct BulkIn {
-    uint8_t  data[BULK_IN_BUF_SIZE];
-    uint32_t len;
-    uint32_t pos;
-} BulkIn;
-
-enum {
-    MIGRATION_NONE,
-    MIGRATION_MIGRATED,
-};
-
-typedef struct CCIDBus {
-    BusState qbus;
-} CCIDBus;
-
-/*
- * powered - defaults to true, changed by PowerOn/PowerOff messages
- */
-typedef struct USBCCIDState {
-    USBDevice dev;
-    USBEndpoint *intr;
-    USBEndpoint *bulk;
-    CCIDBus bus;
-    CCIDCardState *card;
-    BulkIn bulk_in_pending[BULK_IN_PENDING_NUM]; /* circular */
-    uint32_t bulk_in_pending_start;
-    uint32_t bulk_in_pending_end; /* first free */
-    uint32_t bulk_in_pending_num;
-    BulkIn *current_bulk_in;
-    uint8_t  bulk_out_data[BULK_OUT_DATA_SIZE];
-    uint32_t bulk_out_pos;
-    uint64_t last_answer_error;
-    Answer pending_answers[PENDING_ANSWERS_NUM];
-    uint32_t pending_answers_start;
-    uint32_t pending_answers_end;
-    uint32_t pending_answers_num;
-    uint8_t  bError;
-    uint8_t  bmCommandStatus;
-    uint8_t  bProtocolNum;
-    CCID_ProtocolDataStructure abProtocolDataStructure;
-    uint32_t ulProtocolDataStructureSize;
-    uint32_t state_vmstate;
-    uint32_t migration_target_ip;
-    uint16_t migration_target_port;
-    uint8_t  migration_state;
-    uint8_t  bmSlotICCState;
-    uint8_t  powered;
-    uint8_t  notify_slot_change;
-    uint8_t  debug;
-} USBCCIDState;
-
-/*
- * CCID Spec chapter 4: CCID uses a standard device descriptor per Chapter 9,
- * "USB Device Framework", section 9.6.1, in the Universal Serial Bus
- * Specification.
- *
- * This device implemented based on the spec and with an Athena Smart Card
- * Reader as reference:
- *   0dc3:1004 Athena Smartcard Solutions, Inc.
- */
-
-static const uint8_t qemu_ccid_descriptor[] = {
-        /* Smart Card Device Class Descriptor */
-        0x36,       /* u8  bLength; */
-        0x21,       /* u8  bDescriptorType; Functional */
-        0x10, 0x01, /* u16 bcdCCID; CCID Specification Release Number. */
-        0x00,       /*
-                     * u8  bMaxSlotIndex; The index of the highest available
-                     * slot on this device. All slots are consecutive starting
-                     * at 00h.
-                     */
-        0x07,       /* u8  bVoltageSupport; 01h - 5.0v, 02h - 3.0, 03 - 1.8 */
-
-        0x00, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/
-        0x01, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */
-                    /* u32 dwDefaultClock; in kHZ (0x0fa0 is 4 MHz) */
-        0xa0, 0x0f, 0x00, 0x00,
-                    /* u32 dwMaximumClock; */
-        0x00, 0x00, 0x01, 0x00,
-        0x00,       /* u8 bNumClockSupported;                 *
-                     *    0 means just the default and max.   */
-                    /* u32 dwDataRate ;bps. 9600 == 00002580h */
-        0x80, 0x25, 0x00, 0x00,
-                    /* u32 dwMaxDataRate ; 11520 bps == 0001C200h */
-        0x00, 0xC2, 0x01, 0x00,
-        0x00,       /* u8  bNumDataRatesSupported; 00 means all rates between
-                     *     default and max */
-                    /* u32 dwMaxIFSD;                                  *
-                     *     maximum IFSD supported by CCID for protocol *
-                     *     T=1 (Maximum seen from various cards)       */
-        0xfe, 0x00, 0x00, 0x00,
-                    /* u32 dwSyncProtocols; 1 - 2-wire, 2 - 3-wire, 4 - I2C */
-        0x00, 0x00, 0x00, 0x00,
-                    /* u32 dwMechanical;  0 - no special characteristics. */
-        0x00, 0x00, 0x00, 0x00,
-                    /*
-                     * u32 dwFeatures;
-                     * 0 - No special characteristics
-                     * + 2 Automatic parameter configuration based on ATR data
-                     * + 4 Automatic activation of ICC on inserting
-                     * + 8 Automatic ICC voltage selection
-                     * + 10 Automatic ICC clock frequency change
-                     * + 20 Automatic baud rate change
-                     * + 40 Automatic parameters negotiation made by the CCID
-                     * + 80 automatic PPS made by the CCID
-                     * 100 CCID can set ICC in clock stop mode
-                     * 200 NAD value other then 00 accepted (T=1 protocol)
-                     * + 400 Automatic IFSD exchange as first exchange (T=1)
-                     * One of the following only:
-                     * + 10000 TPDU level exchanges with CCID
-                     * 20000 Short APDU level exchange with CCID
-                     * 40000 Short and Extended APDU level exchange with CCID
-                     *
-                     * 100000 USB Wake up signaling supported on card
-                     * insertion and removal. Must set bit 5 in bmAttributes
-                     * in Configuration descriptor if 100000 is set.
-                     */
-        0xfe, 0x04, 0x01, 0x00,
-                    /*
-                     * u32 dwMaxCCIDMessageLength; For extended APDU in
-                     * [261 + 10 , 65544 + 10]. Otherwise the minimum is
-                     * wMaxPacketSize of the Bulk-OUT endpoint
-                     */
-        0x12, 0x00, 0x01, 0x00,
-        0xFF,       /*
-                     * u8  bClassGetResponse; Significant only for CCID that
-                     * offers an APDU level for exchanges. Indicates the
-                     * default class value used by the CCID when it sends a
-                     * Get Response command to perform the transportation of
-                     * an APDU by T=0 protocol
-                     * FFh indicates that the CCID echos the class of the APDU.
-                     */
-        0xFF,       /*
-                     * u8  bClassEnvelope; EAPDU only. Envelope command for
-                     * T=0
-                     */
-        0x00, 0x00, /*
-                     * u16 wLcdLayout; XXYY Number of lines (XX) and chars per
-                     * line for LCD display used for PIN entry. 0000 - no LCD
-                     */
-        0x01,       /*
-                     * u8  bPINSupport; 01h PIN Verification,
-                     *                  02h PIN Modification
-                     */
-        0x01,       /* u8  bMaxCCIDBusySlots; */
-};
-
-enum {
-    STR_MANUFACTURER = 1,
-    STR_PRODUCT,
-    STR_SERIALNUMBER,
-    STR_INTERFACE,
-};
-
-static const USBDescStrings desc_strings = {
-    [STR_MANUFACTURER]  = "QEMU",
-    [STR_PRODUCT]       = "QEMU USB CCID",
-    [STR_SERIALNUMBER]  = "1",
-    [STR_INTERFACE]     = "CCID Interface",
-};
-
-static const USBDescIface desc_iface0 = {
-    .bInterfaceNumber              = 0,
-    .bNumEndpoints                 = 3,
-    .bInterfaceClass               = USB_CLASS_CSCID,
-    .bInterfaceSubClass            = USB_SUBCLASS_UNDEFINED,
-    .bInterfaceProtocol            = 0x00,
-    .iInterface                    = STR_INTERFACE,
-    .ndesc                         = 1,
-    .descs = (USBDescOther[]) {
-        {
-            /* smartcard descriptor */
-            .data = qemu_ccid_descriptor,
-        },
-    },
-    .eps = (USBDescEndpoint[]) {
-        {
-            .bEndpointAddress      = USB_DIR_IN | CCID_INT_IN_EP,
-            .bmAttributes          = USB_ENDPOINT_XFER_INT,
-            .bInterval             = 255,
-            .wMaxPacketSize        = 64,
-        },{
-            .bEndpointAddress      = USB_DIR_IN | CCID_BULK_IN_EP,
-            .bmAttributes          = USB_ENDPOINT_XFER_BULK,
-            .wMaxPacketSize        = 64,
-        },{
-            .bEndpointAddress      = USB_DIR_OUT | CCID_BULK_OUT_EP,
-            .bmAttributes          = USB_ENDPOINT_XFER_BULK,
-            .wMaxPacketSize        = 64,
-        },
-    }
-};
-
-static const USBDescDevice desc_device = {
-    .bcdUSB                        = 0x0110,
-    .bMaxPacketSize0               = 64,
-    .bNumConfigurations            = 1,
-    .confs = (USBDescConfig[]) {
-        {
-            .bNumInterfaces        = 1,
-            .bConfigurationValue   = 1,
-            .bmAttributes          = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER |
-                                     USB_CFG_ATT_WAKEUP,
-            .bMaxPower             = 50,
-            .nif = 1,
-            .ifs = &desc_iface0,
-        },
-    },
-};
-
-static const USBDesc desc_ccid = {
-    .id = {
-        .idVendor          = CCID_VENDOR_ID,
-        .idProduct         = CCID_PRODUCT_ID,
-        .bcdDevice         = CCID_DEVICE_VERSION,
-        .iManufacturer     = STR_MANUFACTURER,
-        .iProduct          = STR_PRODUCT,
-        .iSerialNumber     = STR_SERIALNUMBER,
-    },
-    .full = &desc_device,
-    .str  = desc_strings,
-};
-
-static const uint8_t *ccid_card_get_atr(CCIDCardState *card, uint32_t *len)
-{
-    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
-
-    if (cc->get_atr) {
-        return cc->get_atr(card, len);
-    }
-    return NULL;
-}
-
-static void ccid_card_apdu_from_guest(CCIDCardState *card,
-                                      const uint8_t *apdu,
-                                      uint32_t len)
-{
-    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
-
-    if (cc->apdu_from_guest) {
-        cc->apdu_from_guest(card, apdu, len);
-    }
-}
-
-static int ccid_card_exitfn(CCIDCardState *card)
-{
-    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
-
-    if (cc->exitfn) {
-        return cc->exitfn(card);
-    }
-    return 0;
-}
-
-static int ccid_card_initfn(CCIDCardState *card)
-{
-    CCIDCardClass *cc = CCID_CARD_GET_CLASS(card);
-
-    if (cc->initfn) {
-        return cc->initfn(card);
-    }
-    return 0;
-}
-
-static bool ccid_has_pending_answers(USBCCIDState *s)
-{
-    return s->pending_answers_num > 0;
-}
-
-static void ccid_clear_pending_answers(USBCCIDState *s)
-{
-    s->pending_answers_num = 0;
-    s->pending_answers_start = 0;
-    s->pending_answers_end = 0;
-}
-
-static void ccid_print_pending_answers(USBCCIDState *s)
-{
-    Answer *answer;
-    int i, count;
-
-    DPRINTF(s, D_VERBOSE, "usb-ccid: pending answers:");
-    if (!ccid_has_pending_answers(s)) {
-        DPRINTF(s, D_VERBOSE, " empty\n");
-        return;
-    }
-    for (i = s->pending_answers_start, count = s->pending_answers_num ;
-         count > 0; count--, i++) {
-        answer = &s->pending_answers[i % PENDING_ANSWERS_NUM];
-        if (count == 1) {
-            DPRINTF(s, D_VERBOSE, "%d:%d\n", answer->slot, answer->seq);
-        } else {
-            DPRINTF(s, D_VERBOSE, "%d:%d,", answer->slot, answer->seq);
-        }
-    }
-}
-
-static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr)
-{
-    Answer *answer;
-
-    assert(s->pending_answers_num < PENDING_ANSWERS_NUM);
-    s->pending_answers_num++;
-    answer =
-        &s->pending_answers[(s->pending_answers_end++) % PENDING_ANSWERS_NUM];
-    answer->slot = hdr->bSlot;
-    answer->seq = hdr->bSeq;
-    ccid_print_pending_answers(s);
-}
-
-static void ccid_remove_pending_answer(USBCCIDState *s,
-    uint8_t *slot, uint8_t *seq)
-{
-    Answer *answer;
-
-    assert(s->pending_answers_num > 0);
-    s->pending_answers_num--;
-    answer =
-        &s->pending_answers[(s->pending_answers_start++) % PENDING_ANSWERS_NUM];
-    *slot = answer->slot;
-    *seq = answer->seq;
-    ccid_print_pending_answers(s);
-}
-
-static void ccid_bulk_in_clear(USBCCIDState *s)
-{
-    s->bulk_in_pending_start = 0;
-    s->bulk_in_pending_end = 0;
-    s->bulk_in_pending_num = 0;
-}
-
-static void ccid_bulk_in_release(USBCCIDState *s)
-{
-    assert(s->current_bulk_in != NULL);
-    s->current_bulk_in->pos = 0;
-    s->current_bulk_in = NULL;
-}
-
-static void ccid_bulk_in_get(USBCCIDState *s)
-{
-    if (s->current_bulk_in != NULL || s->bulk_in_pending_num == 0) {
-        return;
-    }
-    assert(s->bulk_in_pending_num > 0);
-    s->bulk_in_pending_num--;
-    s->current_bulk_in =
-        &s->bulk_in_pending[(s->bulk_in_pending_start++) % BULK_IN_PENDING_NUM];
-}
-
-static void *ccid_reserve_recv_buf(USBCCIDState *s, uint16_t len)
-{
-    BulkIn *bulk_in;
-
-    DPRINTF(s, D_VERBOSE, "%s: QUEUE: reserve %d bytes\n", __func__, len);
-
-    /* look for an existing element */
-    if (len > BULK_IN_BUF_SIZE) {
-        DPRINTF(s, D_WARN, "usb-ccid.c: %s: len larger then max (%d>%d). "
-                           "discarding message.\n",
-                           __func__, len, BULK_IN_BUF_SIZE);
-        return NULL;
-    }
-    if (s->bulk_in_pending_num >= BULK_IN_PENDING_NUM) {
-        DPRINTF(s, D_WARN, "usb-ccid.c: %s: No free bulk_in buffers. "
-                           "discarding message.\n", __func__);
-        return NULL;
-    }
-    bulk_in =
-        &s->bulk_in_pending[(s->bulk_in_pending_end++) % BULK_IN_PENDING_NUM];
-    s->bulk_in_pending_num++;
-    bulk_in->len = len;
-    return bulk_in->data;
-}
-
-static void ccid_reset(USBCCIDState *s)
-{
-    ccid_bulk_in_clear(s);
-    ccid_clear_pending_answers(s);
-}
-
-static void ccid_detach(USBCCIDState *s)
-{
-    ccid_reset(s);
-}
-
-static void ccid_handle_reset(USBDevice *dev)
-{
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    DPRINTF(s, 1, "Reset\n");
-
-    ccid_reset(s);
-}
-
-static const char *ccid_control_to_str(USBCCIDState *s, int request)
-{
-    switch (request) {
-        /* generic - should be factored out if there are other debugees */
-    case DeviceOutRequest | USB_REQ_SET_ADDRESS:
-        return "(generic) set address";
-    case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
-        return "(generic) get descriptor";
-    case DeviceRequest | USB_REQ_GET_CONFIGURATION:
-        return "(generic) get configuration";
-    case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
-        return "(generic) set configuration";
-    case DeviceRequest | USB_REQ_GET_STATUS:
-        return "(generic) get status";
-    case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
-        return "(generic) clear feature";
-    case DeviceOutRequest | USB_REQ_SET_FEATURE:
-        return "(generic) set_feature";
-    case InterfaceRequest | USB_REQ_GET_INTERFACE:
-        return "(generic) get interface";
-    case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
-        return "(generic) set interface";
-        /* class requests */
-    case ClassInterfaceOutRequest | CCID_CONTROL_ABORT:
-        return "ABORT";
-    case ClassInterfaceRequest | CCID_CONTROL_GET_CLOCK_FREQUENCIES:
-        return "GET_CLOCK_FREQUENCIES";
-    case ClassInterfaceRequest | CCID_CONTROL_GET_DATA_RATES:
-        return "GET_DATA_RATES";
-    }
-    return "unknown";
-}
-
-static void ccid_handle_control(USBDevice *dev, USBPacket *p, int request,
-                               int value, int index, int length, uint8_t *data)
-{
-    USBCCIDState *s = USB_CCID_DEV(dev);
-    int ret;
-
-    DPRINTF(s, 1, "%s: got control %s (%x), value %x\n", __func__,
-            ccid_control_to_str(s, request), request, value);
-    ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
-    if (ret >= 0) {
-        return;
-    }
-
-    switch (request) {
-        /* Class specific requests.  */
-    case ClassInterfaceOutRequest | CCID_CONTROL_ABORT:
-        DPRINTF(s, 1, "ccid_control abort UNIMPLEMENTED\n");
-        p->status = USB_RET_STALL;
-        break;
-    case ClassInterfaceRequest | CCID_CONTROL_GET_CLOCK_FREQUENCIES:
-        DPRINTF(s, 1, "ccid_control get clock frequencies UNIMPLEMENTED\n");
-        p->status = USB_RET_STALL;
-        break;
-    case ClassInterfaceRequest | CCID_CONTROL_GET_DATA_RATES:
-        DPRINTF(s, 1, "ccid_control get data rates UNIMPLEMENTED\n");
-        p->status = USB_RET_STALL;
-        break;
-    default:
-        DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n",
-                request, value);
-        p->status = USB_RET_STALL;
-        break;
-    }
-}
-
-static bool ccid_card_inserted(USBCCIDState *s)
-{
-    return s->bmSlotICCState & SLOT_0_STATE_MASK;
-}
-
-static uint8_t ccid_card_status(USBCCIDState *s)
-{
-    return ccid_card_inserted(s)
-            ? (s->powered ?
-                ICC_STATUS_PRESENT_ACTIVE
-              : ICC_STATUS_PRESENT_INACTIVE
-              )
-            : ICC_STATUS_NOT_PRESENT;
-}
-
-static uint8_t ccid_calc_status(USBCCIDState *s)
-{
-    /*
-     * page 55, 6.2.6, calculation of bStatus from bmICCStatus and
-     * bmCommandStatus
-     */
-    uint8_t ret = ccid_card_status(s) | (s->bmCommandStatus << 6);
-    DPRINTF(s, D_VERBOSE, "%s: status = %d\n", __func__, ret);
-    return ret;
-}
-
-static void ccid_reset_error_status(USBCCIDState *s)
-{
-    s->bError = ERROR_CMD_NOT_SUPPORTED;
-    s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
-}
-
-static void ccid_write_slot_status(USBCCIDState *s, CCID_Header *recv)
-{
-    CCID_SlotStatus *h = ccid_reserve_recv_buf(s, sizeof(CCID_SlotStatus));
-    if (h == NULL) {
-        return;
-    }
-    h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus;
-    h->b.hdr.dwLength = 0;
-    h->b.hdr.bSlot = recv->bSlot;
-    h->b.hdr.bSeq = recv->bSeq;
-    h->b.bStatus = ccid_calc_status(s);
-    h->b.bError = s->bError;
-    h->bClockStatus = CLOCK_STATUS_RUNNING;
-    ccid_reset_error_status(s);
-    usb_wakeup(s->bulk, 0);
-}
-
-static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv)
-{
-    CCID_Parameter *h;
-    uint32_t len = s->ulProtocolDataStructureSize;
-
-    h = ccid_reserve_recv_buf(s, sizeof(CCID_Parameter) + len);
-    if (h == NULL) {
-        return;
-    }
-    h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_Parameters;
-    h->b.hdr.dwLength = 0;
-    h->b.hdr.bSlot = recv->bSlot;
-    h->b.hdr.bSeq = recv->bSeq;
-    h->b.bStatus = ccid_calc_status(s);
-    h->b.bError = s->bError;
-    h->bProtocolNum = s->bProtocolNum;
-    h->abProtocolDataStructure = s->abProtocolDataStructure;
-    ccid_reset_error_status(s);
-    usb_wakeup(s->bulk, 0);
-}
-
-static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq,
-                                  const uint8_t *data, uint32_t len)
-{
-    CCID_DataBlock *p = ccid_reserve_recv_buf(s, sizeof(*p) + len);
-
-    if (p == NULL) {
-        return;
-    }
-    p->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock;
-    p->b.hdr.dwLength = cpu_to_le32(len);
-    p->b.hdr.bSlot = slot;
-    p->b.hdr.bSeq = seq;
-    p->b.bStatus = ccid_calc_status(s);
-    p->b.bError = s->bError;
-    if (p->b.bError) {
-        DPRINTF(s, D_VERBOSE, "error %d\n", p->b.bError);
-    }
-    memcpy(p->abData, data, len);
-    ccid_reset_error_status(s);
-    usb_wakeup(s->bulk, 0);
-}
-
-static void ccid_report_error_failed(USBCCIDState *s, uint8_t error)
-{
-    s->bmCommandStatus = COMMAND_STATUS_FAILED;
-    s->bError = error;
-}
-
-static void ccid_write_data_block_answer(USBCCIDState *s,
-    const uint8_t *data, uint32_t len)
-{
-    uint8_t seq;
-    uint8_t slot;
-
-    if (!ccid_has_pending_answers(s)) {
-        DPRINTF(s, D_WARN, "error: no pending answer to return to guest\n");
-        ccid_report_error_failed(s, ERROR_ICC_MUTE);
-        return;
-    }
-    ccid_remove_pending_answer(s, &slot, &seq);
-    ccid_write_data_block(s, slot, seq, data, len);
-}
-
-static uint8_t atr_get_protocol_num(const uint8_t *atr, uint32_t len)
-{
-    int i;
-
-    if (len < 2 || !(atr[1] & 0x80)) {
-        /* too short or TD1 not included */
-        return 0; /* T=0, default */
-    }
-    i = 1 + !!(atr[1] & 0x10) + !!(atr[1] & 0x20) + !!(atr[1] & 0x40);
-    i += !!(atr[1] & 0x80);
-    return atr[i] & 0x0f;
-}
-
-static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv)
-{
-    const uint8_t *atr = NULL;
-    uint32_t len = 0;
-    uint8_t atr_protocol_num;
-    CCID_T0ProtocolDataStructure *t0 = &s->abProtocolDataStructure.t0;
-    CCID_T1ProtocolDataStructure *t1 = &s->abProtocolDataStructure.t1;
-
-    if (s->card) {
-        atr = ccid_card_get_atr(s->card, &len);
-    }
-    atr_protocol_num = atr_get_protocol_num(atr, len);
-    DPRINTF(s, D_VERBOSE, "%s: atr contains protocol=%d\n", __func__,
-            atr_protocol_num);
-    /* set parameters from ATR - see spec page 109 */
-    s->bProtocolNum = (atr_protocol_num <= 1 ? atr_protocol_num
-                                             : s->bProtocolNum);
-    switch (atr_protocol_num) {
-    case 0:
-        /* TODO: unimplemented ATR T0 parameters */
-        t0->bmFindexDindex = 0;
-        t0->bmTCCKST0 = 0;
-        t0->bGuardTimeT0 = 0;
-        t0->bWaitingIntegerT0 = 0;
-        t0->bClockStop = 0;
-        break;
-    case 1:
-        /* TODO: unimplemented ATR T1 parameters */
-        t1->bmFindexDindex = 0;
-        t1->bmTCCKST1 = 0;
-        t1->bGuardTimeT1 = 0;
-        t1->bWaitingIntegerT1 = 0;
-        t1->bClockStop = 0;
-        t1->bIFSC = 0;
-        t1->bNadValue = 0;
-        break;
-    default:
-        DPRINTF(s, D_WARN, "%s: error: unsupported ATR protocol %d\n",
-                __func__, atr_protocol_num);
-    }
-    ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len);
-}
-
-static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv)
-{
-    CCID_SetParameters *ph = (CCID_SetParameters *) recv;
-    uint32_t protocol_num = ph->bProtocolNum & 3;
-
-    if (protocol_num != 0 && protocol_num != 1) {
-        ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED);
-        return;
-    }
-    s->bProtocolNum = protocol_num;
-    s->abProtocolDataStructure = ph->abProtocolDataStructure;
-}
-
-/*
- * must be 5 bytes for T=0, 7 bytes for T=1
- * See page 52
- */
-static const CCID_ProtocolDataStructure defaultProtocolDataStructure = {
-    .t1 = {
-        .bmFindexDindex = 0x77,
-        .bmTCCKST1 = 0x00,
-        .bGuardTimeT1 = 0x00,
-        .bWaitingIntegerT1 = 0x00,
-        .bClockStop = 0x00,
-        .bIFSC = 0xfe,
-        .bNadValue = 0x00,
-    }
-};
-
-static void ccid_reset_parameters(USBCCIDState *s)
-{
-   s->bProtocolNum = 0; /* T=0 */
-   s->abProtocolDataStructure = defaultProtocolDataStructure;
-}
-
-/* NOTE: only a single slot is supported (SLOT_0) */
-static void ccid_on_slot_change(USBCCIDState *s, bool full)
-{
-    /* RDR_to_PC_NotifySlotChange, 6.3.1 page 56 */
-    uint8_t current = s->bmSlotICCState;
-    if (full) {
-        s->bmSlotICCState |= SLOT_0_STATE_MASK;
-    } else {
-        s->bmSlotICCState &= ~SLOT_0_STATE_MASK;
-    }
-    if (current != s->bmSlotICCState) {
-        s->bmSlotICCState |= SLOT_0_CHANGED_MASK;
-    }
-    s->notify_slot_change = true;
-    usb_wakeup(s->intr, 0);
-}
-
-static void ccid_write_data_block_error(
-    USBCCIDState *s, uint8_t slot, uint8_t seq)
-{
-    ccid_write_data_block(s, slot, seq, NULL, 0);
-}
-
-static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv)
-{
-    uint32_t len;
-
-    if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) {
-        DPRINTF(s, 1,
-                "usb-ccid: not sending apdu to client, no card connected\n");
-        ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq);
-        return;
-    }
-    len = le32_to_cpu(recv->hdr.dwLength);
-    DPRINTF(s, 1, "%s: seq %d, len %d\n", __func__,
-                recv->hdr.bSeq, len);
-    ccid_add_pending_answer(s, (CCID_Header *)recv);
-    if (s->card) {
-        ccid_card_apdu_from_guest(s->card, recv->abData, len);
-    } else {
-        DPRINTF(s, D_WARN, "warning: discarded apdu\n");
-    }
-}
-
-static const char *ccid_message_type_to_str(uint8_t type)
-{
-    switch (type) {
-    case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn: return "IccPowerOn";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff: return "IccPowerOff";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus: return "GetSlotStatus";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock: return "XfrBlock";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters: return "GetParameters";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters: return "ResetParameters";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters: return "SetParameters";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_Escape: return "Escape";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_IccClock: return "IccClock";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_T0APDU: return "T0APDU";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_Secure: return "Secure";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical: return "Mechanical";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_Abort: return "Abort";
-    case CCID_MESSAGE_TYPE_PC_to_RDR_SetDataRateAndClockFrequency:
-        return "SetDataRateAndClockFrequency";
-    }
-    return "unknown";
-}
-
-static void ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p)
-{
-    CCID_Header *ccid_header;
-
-    if (p->iov.size + s->bulk_out_pos > BULK_OUT_DATA_SIZE) {
-        p->status = USB_RET_STALL;
-        return;
-    }
-    ccid_header = (CCID_Header *)s->bulk_out_data;
-    usb_packet_copy(p, s->bulk_out_data + s->bulk_out_pos, p->iov.size);
-    s->bulk_out_pos += p->iov.size;
-    if (p->iov.size == CCID_MAX_PACKET_SIZE) {
-        DPRINTF(s, D_VERBOSE,
-            "usb-ccid: bulk_in: expecting more packets (%zd/%d)\n",
-            p->iov.size, ccid_header->dwLength);
-        return;
-    }
-    if (s->bulk_out_pos < 10) {
-        DPRINTF(s, 1,
-                "%s: bad USB_TOKEN_OUT length, should be at least 10 bytes\n",
-                __func__);
-    } else {
-        DPRINTF(s, D_MORE_INFO, "%s %x %s\n", __func__,
-                ccid_header->bMessageType,
-                ccid_message_type_to_str(ccid_header->bMessageType));
-        switch (ccid_header->bMessageType) {
-        case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus:
-            ccid_write_slot_status(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn:
-            DPRINTF(s, 1, "%s: PowerOn: %d\n", __func__,
-                ((CCID_IccPowerOn *)(ccid_header))->bPowerSelect);
-            s->powered = true;
-            if (!ccid_card_inserted(s)) {
-                ccid_report_error_failed(s, ERROR_ICC_MUTE);
-            }
-            /* atr is written regardless of error. */
-            ccid_write_data_block_atr(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff:
-            ccid_reset_error_status(s);
-            s->powered = false;
-            ccid_write_slot_status(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock:
-            ccid_on_apdu_from_guest(s, (CCID_XferBlock *)s->bulk_out_data);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters:
-            ccid_reset_error_status(s);
-            ccid_set_parameters(s, ccid_header);
-            ccid_write_parameters(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters:
-            ccid_reset_error_status(s);
-            ccid_reset_parameters(s);
-            ccid_write_parameters(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters:
-            ccid_reset_error_status(s);
-            ccid_write_parameters(s, ccid_header);
-            break;
-        case CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical:
-            ccid_report_error_failed(s, 0);
-            ccid_write_slot_status(s, ccid_header);
-            break;
-        default:
-            DPRINTF(s, 1,
-                "handle_data: ERROR: unhandled message type %Xh\n",
-                ccid_header->bMessageType);
-            /*
-             * The caller is expecting the device to respond, tell it we
-             * don't support the operation.
-             */
-            ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED);
-            ccid_write_slot_status(s, ccid_header);
-            break;
-        }
-    }
-    s->bulk_out_pos = 0;
-}
-
-static void ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p)
-{
-    int len = 0;
-
-    ccid_bulk_in_get(s);
-    if (s->current_bulk_in != NULL) {
-        len = MIN(s->current_bulk_in->len - s->current_bulk_in->pos,
-                  p->iov.size);
-        usb_packet_copy(p, s->current_bulk_in->data +
-                        s->current_bulk_in->pos, len);
-        s->current_bulk_in->pos += len;
-        if (s->current_bulk_in->pos == s->current_bulk_in->len) {
-            ccid_bulk_in_release(s);
-        }
-    } else {
-        /* return when device has no data - usb 2.0 spec Table 8-4 */
-        p->status = USB_RET_NAK;
-    }
-    if (len) {
-        DPRINTF(s, D_MORE_INFO,
-                "%s: %zd/%d req/act to guest (BULK_IN)\n",
-                __func__, p->iov.size, len);
-    }
-    if (len < p->iov.size) {
-        DPRINTF(s, 1,
-                "%s: returning short (EREMOTEIO) %d < %zd\n",
-                __func__, len, p->iov.size);
-    }
-}
-
-static void ccid_handle_data(USBDevice *dev, USBPacket *p)
-{
-    USBCCIDState *s = USB_CCID_DEV(dev);
-    uint8_t buf[2];
-
-    switch (p->pid) {
-    case USB_TOKEN_OUT:
-        ccid_handle_bulk_out(s, p);
-        break;
-
-    case USB_TOKEN_IN:
-        switch (p->ep->nr) {
-        case CCID_BULK_IN_EP:
-            ccid_bulk_in_copy_to_guest(s, p);
-            break;
-        case CCID_INT_IN_EP:
-            if (s->notify_slot_change) {
-                /* page 56, RDR_to_PC_NotifySlotChange */
-                buf[0] = CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange;
-                buf[1] = s->bmSlotICCState;
-                usb_packet_copy(p, buf, 2);
-                s->notify_slot_change = false;
-                s->bmSlotICCState &= ~SLOT_0_CHANGED_MASK;
-                DPRINTF(s, D_INFO,
-                        "handle_data: int_in: notify_slot_change %X, "
-                        "requested len %zd\n",
-                        s->bmSlotICCState, p->iov.size);
-            } else {
-                p->status = USB_RET_NAK;
-            }
-            break;
-        default:
-            DPRINTF(s, 1, "Bad endpoint\n");
-            p->status = USB_RET_STALL;
-            break;
-        }
-        break;
-    default:
-        DPRINTF(s, 1, "Bad token\n");
-        p->status = USB_RET_STALL;
-        break;
-    }
-}
-
-static void ccid_handle_destroy(USBDevice *dev)
-{
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    ccid_bulk_in_clear(s);
-}
-
-static void ccid_flush_pending_answers(USBCCIDState *s)
-{
-    while (ccid_has_pending_answers(s)) {
-        ccid_write_data_block_answer(s, NULL, 0);
-    }
-}
-
-static Answer *ccid_peek_next_answer(USBCCIDState *s)
-{
-    return s->pending_answers_num == 0
-        ? NULL
-        : &s->pending_answers[s->pending_answers_start % PENDING_ANSWERS_NUM];
-}
-
-static Property ccid_props[] = {
-    DEFINE_PROP_UINT32("slot", struct CCIDCardState, slot, 0),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-#define TYPE_CCID_BUS "ccid-bus"
-#define CCID_BUS(obj) OBJECT_CHECK(CCIDBus, (obj), TYPE_CCID_BUS)
-
-static const TypeInfo ccid_bus_info = {
-    .name = TYPE_CCID_BUS,
-    .parent = TYPE_BUS,
-    .instance_size = sizeof(CCIDBus),
-};
-
-void ccid_card_send_apdu_to_guest(CCIDCardState *card,
-                                  uint8_t *apdu, uint32_t len)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-    Answer *answer;
-
-    if (!ccid_has_pending_answers(s)) {
-        DPRINTF(s, 1, "CCID ERROR: got an APDU without pending answers\n");
-        return;
-    }
-    s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
-    answer = ccid_peek_next_answer(s);
-    if (answer == NULL) {
-        DPRINTF(s, D_WARN, "%s: error: unexpected lack of answer\n", __func__);
-        ccid_report_error_failed(s, ERROR_HW_ERROR);
-        return;
-    }
-    DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n",
-        len, answer->seq, answer->slot);
-    ccid_write_data_block_answer(s, apdu, len);
-}
-
-void ccid_card_card_removed(CCIDCardState *card)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    ccid_on_slot_change(s, false);
-    ccid_flush_pending_answers(s);
-    ccid_reset(s);
-}
-
-int ccid_card_ccid_attach(CCIDCardState *card)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    DPRINTF(s, 1, "CCID Attach\n");
-    if (s->migration_state == MIGRATION_MIGRATED) {
-        s->migration_state = MIGRATION_NONE;
-    }
-    return 0;
-}
-
-void ccid_card_ccid_detach(CCIDCardState *card)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    DPRINTF(s, 1, "CCID Detach\n");
-    if (ccid_card_inserted(s)) {
-        ccid_on_slot_change(s, false);
-    }
-    ccid_detach(s);
-}
-
-void ccid_card_card_error(CCIDCardState *card, uint64_t error)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    s->bmCommandStatus = COMMAND_STATUS_FAILED;
-    s->last_answer_error = error;
-    DPRINTF(s, 1, "VSC_Error: %" PRIX64 "\n", s->last_answer_error);
-    /* TODO: these errors should be more verbose and propagated to the guest.*/
-    /*
-     * We flush all pending answers on CardRemove message in ccid-card-passthru,
-     * so check that first to not trigger abort
-     */
-    if (ccid_has_pending_answers(s)) {
-        ccid_write_data_block_answer(s, NULL, 0);
-    }
-}
-
-void ccid_card_card_inserted(CCIDCardState *card)
-{
-    DeviceState *qdev = DEVICE(card);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
-    ccid_flush_pending_answers(s);
-    ccid_on_slot_change(s, true);
-}
-
-static int ccid_card_exit(DeviceState *qdev)
-{
-    int ret = 0;
-    CCIDCardState *card = CCID_CARD(qdev);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    if (ccid_card_inserted(s)) {
-        ccid_card_card_removed(card);
-    }
-    ret = ccid_card_exitfn(card);
-    s->card = NULL;
-    return ret;
-}
-
-static int ccid_card_init(DeviceState *qdev)
-{
-    CCIDCardState *card = CCID_CARD(qdev);
-    USBDevice *dev = USB_DEVICE(qdev->parent_bus->parent);
-    USBCCIDState *s = USB_CCID_DEV(dev);
-    int ret = 0;
-
-    if (card->slot != 0) {
-        error_report("Warning: usb-ccid supports one slot, can't add %d",
-                card->slot);
-        return -1;
-    }
-    if (s->card != NULL) {
-        error_report("Warning: usb-ccid card already full, not adding");
-        return -1;
-    }
-    ret = ccid_card_initfn(card);
-    if (ret == 0) {
-        s->card = card;
-    }
-    return ret;
-}
-
-static void ccid_realize(USBDevice *dev, Error **errp)
-{
-    USBCCIDState *s = USB_CCID_DEV(dev);
-
-    usb_desc_create_serial(dev);
-    usb_desc_init(dev);
-    qbus_create_inplace(&s->bus, sizeof(s->bus), TYPE_CCID_BUS, DEVICE(dev),
-                        NULL);
-    qbus_set_hotplug_handler(BUS(&s->bus), DEVICE(dev), &error_abort);
-    s->intr = usb_ep_get(dev, USB_TOKEN_IN, CCID_INT_IN_EP);
-    s->bulk = usb_ep_get(dev, USB_TOKEN_IN, CCID_BULK_IN_EP);
-    s->card = NULL;
-    s->migration_state = MIGRATION_NONE;
-    s->migration_target_ip = 0;
-    s->migration_target_port = 0;
-    s->dev.speed = USB_SPEED_FULL;
-    s->dev.speedmask = USB_SPEED_MASK_FULL;
-    s->notify_slot_change = false;
-    s->powered = true;
-    s->pending_answers_num = 0;
-    s->last_answer_error = 0;
-    s->bulk_in_pending_start = 0;
-    s->bulk_in_pending_end = 0;
-    s->current_bulk_in = NULL;
-    ccid_reset_error_status(s);
-    s->bulk_out_pos = 0;
-    ccid_reset_parameters(s);
-    ccid_reset(s);
-    s->debug = parse_debug_env("QEMU_CCID_DEBUG", D_VERBOSE, s->debug);
-}
-
-static int ccid_post_load(void *opaque, int version_id)
-{
-    USBCCIDState *s = opaque;
-
-    /*
-     * This must be done after usb_device_attach, which sets state to ATTACHED,
-     * while it must be DEFAULT in order to accept packets (like it is after
-     * reset, but reset will reset our addr and call our reset handler which
-     * may change state, and we don't want to do that when migrating).
-     */
-    s->dev.state = s->state_vmstate;
-    return 0;
-}
-
-static void ccid_pre_save(void *opaque)
-{
-    USBCCIDState *s = opaque;
-
-    s->state_vmstate = s->dev.state;
-    if (s->dev.attached) {
-        /*
-         * Migrating an open device, ignore reconnection CHR_EVENT to avoid an
-         * erroneous detach.
-         */
-        s->migration_state = MIGRATION_MIGRATED;
-    }
-}
-
-static VMStateDescription bulk_in_vmstate = {
-    .name = "CCID BulkIn state",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_BUFFER(data, BulkIn),
-        VMSTATE_UINT32(len, BulkIn),
-        VMSTATE_UINT32(pos, BulkIn),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static VMStateDescription answer_vmstate = {
-    .name = "CCID Answer state",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(slot, Answer),
-        VMSTATE_UINT8(seq, Answer),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static VMStateDescription usb_device_vmstate = {
-    .name = "usb_device",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(addr, USBDevice),
-        VMSTATE_BUFFER(setup_buf, USBDevice),
-        VMSTATE_BUFFER(data_buf, USBDevice),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static VMStateDescription ccid_vmstate = {
-    .name = "usb-ccid",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .post_load = ccid_post_load,
-    .pre_save = ccid_pre_save,
-    .fields = (VMStateField[]) {
-        VMSTATE_STRUCT(dev, USBCCIDState, 1, usb_device_vmstate, USBDevice),
-        VMSTATE_UINT8(debug, USBCCIDState),
-        VMSTATE_BUFFER(bulk_out_data, USBCCIDState),
-        VMSTATE_UINT32(bulk_out_pos, USBCCIDState),
-        VMSTATE_UINT8(bmSlotICCState, USBCCIDState),
-        VMSTATE_UINT8(powered, USBCCIDState),
-        VMSTATE_UINT8(notify_slot_change, USBCCIDState),
-        VMSTATE_UINT64(last_answer_error, USBCCIDState),
-        VMSTATE_UINT8(bError, USBCCIDState),
-        VMSTATE_UINT8(bmCommandStatus, USBCCIDState),
-        VMSTATE_UINT8(bProtocolNum, USBCCIDState),
-        VMSTATE_BUFFER(abProtocolDataStructure.data, USBCCIDState),
-        VMSTATE_UINT32(ulProtocolDataStructureSize, USBCCIDState),
-        VMSTATE_STRUCT_ARRAY(bulk_in_pending, USBCCIDState,
-                       BULK_IN_PENDING_NUM, 1, bulk_in_vmstate, BulkIn),
-        VMSTATE_UINT32(bulk_in_pending_start, USBCCIDState),
-        VMSTATE_UINT32(bulk_in_pending_end, USBCCIDState),
-        VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState,
-                        PENDING_ANSWERS_NUM, 1, answer_vmstate, Answer),
-        VMSTATE_UINT32(pending_answers_num, USBCCIDState),
-        VMSTATE_UINT8(migration_state, USBCCIDState),
-        VMSTATE_UINT32(state_vmstate, USBCCIDState),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static Property ccid_properties[] = {
-    DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static void ccid_class_initfn(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
-    HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
-
-    uc->realize        = ccid_realize;
-    uc->product_desc   = "QEMU USB CCID";
-    uc->usb_desc       = &desc_ccid;
-    uc->handle_reset   = ccid_handle_reset;
-    uc->handle_control = ccid_handle_control;
-    uc->handle_data    = ccid_handle_data;
-    uc->handle_destroy = ccid_handle_destroy;
-    dc->desc = "CCID Rev 1.1 smartcard reader";
-    dc->vmsd = &ccid_vmstate;
-    dc->props = ccid_properties;
-    set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
-    hc->unplug = qdev_simple_device_unplug_cb;
-}
-
-static const TypeInfo ccid_info = {
-    .name          = CCID_DEV_NAME,
-    .parent        = TYPE_USB_DEVICE,
-    .instance_size = sizeof(USBCCIDState),
-    .class_init    = ccid_class_initfn,
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_HOTPLUG_HANDLER },
-        { }
-    }
-};
-
-static void ccid_card_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *k = DEVICE_CLASS(klass);
-    k->bus_type = TYPE_CCID_BUS;
-    k->init = ccid_card_init;
-    k->exit = ccid_card_exit;
-    k->props = ccid_props;
-}
-
-static const TypeInfo ccid_card_type_info = {
-    .name = TYPE_CCID_CARD,
-    .parent = TYPE_DEVICE,
-    .instance_size = sizeof(CCIDCardState),
-    .abstract = true,
-    .class_size = sizeof(CCIDCardClass),
-    .class_init = ccid_card_class_init,
-};
-
-static void ccid_register_types(void)
-{
-    type_register_static(&ccid_bus_info);
-    type_register_static(&ccid_card_type_info);
-    type_register_static(&ccid_info);
-    usb_legacy_register(CCID_DEV_NAME, "ccid", NULL);
-}
-
-type_init(ccid_register_types)