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dev-smartcard-reader: define structs for CCID_Parameter internals 

Signed-off-by: Alon Levy <alevy@redhat.com>
Reviewed-by: Marc-André Lureau <mlureau@redhat.com>
This commit is contained in:
Alon Levy 2013-03-04 18:57:45 +02:00
parent b16352acf3
commit 4942d6c394
1 changed files with 47 additions and 27 deletions
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74
hw/usb/dev-smartcard-reader.c
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@ -189,10 +189,34 @@ typedef struct QEMU_PACKED CCID_SlotStatus {
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;
uint8_t abProtocolDataStructure[0];
CCID_ProtocolDataStructure abProtocolDataStructure;
} CCID_Parameter;
typedef struct QEMU_PACKED CCID_DataBlock {
@ -224,7 +248,7 @@ typedef struct QEMU_PACKED CCID_SetParameters {
CCID_Header hdr;
uint8_t bProtocolNum;
uint16_t abRFU;
uint8_t abProtocolDataStructure[0];
CCID_ProtocolDataStructure abProtocolDataStructure;
} CCID_SetParameters;
typedef struct CCID_Notify_Slot_Change {
@ -254,8 +278,6 @@ typedef struct CCIDBus {
BusState qbus;
} CCIDBus;
#define MAX_PROTOCOL_SIZE 7
/*
* powered - defaults to true, changed by PowerOn/PowerOff messages
*/
@ -279,7 +301,7 @@ typedef struct USBCCIDState {
uint8_t bError;
uint8_t bmCommandStatus;
uint8_t bProtocolNum;
uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE];
CCID_ProtocolDataStructure abProtocolDataStructure;
uint32_t ulProtocolDataStructureSize;
uint32_t state_vmstate;
uint32_t migration_target_ip;
@ -765,7 +787,7 @@ static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv)
h->b.bStatus = ccid_calc_status(s);
h->b.bError = s->bError;
h->bProtocolNum = s->bProtocolNum;
memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len);
h->abProtocolDataStructure = s->abProtocolDataStructure;
ccid_reset_error_status(s);
}
@ -825,38 +847,36 @@ static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv)
static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv)
{
CCID_SetParameters *ph = (CCID_SetParameters *) recv;
uint32_t len = 0;
if ((ph->bProtocolNum & 3) == 0) {
len = 5;
}
if ((ph->bProtocolNum & 3) == 1) {
len = 7;
}
if (len == 0) {
s->bmCommandStatus = COMMAND_STATUS_FAILED;
s->bError = 7; /* Protocol invalid or not supported */
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 = ph->bProtocolNum;
memcpy(s->abProtocolDataStructure, ph->abProtocolDataStructure, len);
s->ulProtocolDataStructureSize = len;
DPRINTF(s, 1, "%s: using len %d\n", __func__, len);
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 uint8_t abDefaultProtocolDataStructure[7] = {
0x77, 0x00, 0x00, 0x00, 0x00, 0xfe /*IFSC*/, 0x00 /*NAD*/ };
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)
{
uint32_t len = sizeof(abDefaultProtocolDataStructure);
s->bProtocolNum = 1; /* T=1 */
s->ulProtocolDataStructureSize = len;
memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len);
s->abProtocolDataStructure = defaultProtocolDataStructure;
}
/* NOTE: only a single slot is supported (SLOT_0) */
@ -1345,7 +1365,7 @@ static VMStateDescription ccid_vmstate = {
VMSTATE_UINT8(bError, USBCCIDState),
VMSTATE_UINT8(bmCommandStatus, USBCCIDState),
VMSTATE_UINT8(bProtocolNum, USBCCIDState),
VMSTATE_BUFFER(abProtocolDataStructure, 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),