hw/usb/ccid.h

   1 /*
   2  * CCID Passthru Card Device emulation
   3  *
   4  * Copyright (c) 2011 Red Hat.
   5  * Written by Alon Levy.
   6  *
   7  * This code is licensed under the GNU LGPL, version 2 or later.
   8  */
   9
  10 #ifndef CCID_H
  11 #define CCID_H
  12
  13 #include "hw/qdev-core.h"
  14
  15 typedef struct CCIDCardState CCIDCardState;
  16 typedef struct CCIDCardInfo CCIDCardInfo;
  17
  18 #define TYPE_CCID_CARD "ccid-card"
  19 #define CCID_CARD(obj) \
  20      OBJECT_CHECK(CCIDCardState, (obj), TYPE_CCID_CARD)
  21 #define CCID_CARD_CLASS(klass) \
  22      OBJECT_CLASS_CHECK(CCIDCardClass, (klass), TYPE_CCID_CARD)
  23 #define CCID_CARD_GET_CLASS(obj) \
  24      OBJECT_GET_CLASS(CCIDCardClass, (obj), TYPE_CCID_CARD)
  25
  26 /*
  27  * callbacks to be used by the CCID device (hw/usb-ccid.c) to call
  28  * into the smartcard device (hw/ccid-card-*.c)
  29  */
  30 typedef struct CCIDCardClass {
  31     /*< private >*/
  32     DeviceClass parent_class;
  33     /*< public >*/
  34     const uint8_t *(*get_atr)(CCIDCardState *card, uint32_t *len);
  35     void (*apdu_from_guest)(CCIDCardState *card,
  36                             const uint8_t *apdu,
  37                             uint32_t len);
  38     void (*realize)(CCIDCardState *card, Error **errp);
  39     void (*unrealize)(CCIDCardState *card);
  40 } CCIDCardClass;
  41
  42 /*
  43  * state of the CCID Card device (i.e. hw/ccid-card-*.c)
  44  */
  45 struct CCIDCardState {
  46     DeviceState qdev;
  47     uint32_t    slot; /* For future use with multiple slot reader. */
  48 };
  49
  50 /*
  51  * API for smartcard calling the CCID device (used by hw/ccid-card-*.c)
  52  */
  53 void ccid_card_send_apdu_to_guest(CCIDCardState *card,
  54                                   uint8_t *apdu,
  55                                   uint32_t len);
  56 void ccid_card_card_removed(CCIDCardState *card);
  57 void ccid_card_card_inserted(CCIDCardState *card);
  58 void ccid_card_card_error(CCIDCardState *card, uint64_t error);
  59
  60 /*
  61  * support guest visible insertion/removal of ccid devices based on actual
  62  * devices connected/removed. Called by card implementation (passthru, local)
  63  */
  64 int ccid_card_ccid_attach(CCIDCardState *card);
  65 void ccid_card_ccid_detach(CCIDCardState *card);
  66
  67 #endif /* CCID_H */