On Thu, Nov 25, 2010 at 4:22 PM, Alon Levy <al...@redhat.com> wrote: > A CCID device is a smart card reader. It is a USB device, defined at [1]. > This patch introduces the usb-ccid device that is a ccid bus. Next patches > will > introduce two card types to use it, a passthru card and an emulated card. > > [1] http://www.usb.org/developers/devclass_docs/DWG_Smart-Card_CCID_Rev110. > > Signed-off-by: Alon Levy <al...@redhat.com> > --- > Makefile.objs | 1 + > configure | 12 + > hw/ccid.h | 34 ++ > hw/usb-ccid.c | 1342 > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 1389 insertions(+), 0 deletions(-) > create mode 100644 hw/ccid.h > create mode 100644 hw/usb-ccid.c > > diff --git a/Makefile.objs b/Makefile.objs > index 23b17ce..713131f 100644 > --- a/Makefile.objs > +++ b/Makefile.objs > @@ -183,6 +183,7 @@ hw-obj-$(CONFIG_FDC) += fdc.o > hw-obj-$(CONFIG_ACPI) += acpi.o acpi_piix4.o > hw-obj-$(CONFIG_APM) += pm_smbus.o apm.o > hw-obj-$(CONFIG_DMA) += dma.o > +hw-obj-$(CONFIG_SMARTCARD) += usb-ccid.o > > # PPC devices > hw-obj-$(CONFIG_OPENPIC) += openpic.o > diff --git a/configure b/configure > index 2917874..fb9eac2 100755 > --- a/configure > +++ b/configure > @@ -332,6 +332,7 @@ zero_malloc="" > trace_backend="nop" > trace_file="trace" > spice="" > +smartcard="no" > > # OS specific > if check_define __linux__ ; then > @@ -739,6 +740,10 @@ for opt do > ;; > --enable-vhost-net) vhost_net="yes" > ;; > + --disable-smartcard) smartcard="no" > + ;; > + --enable-smartcard) smartcard="yes" > + ;; > --*dir) > ;; > *) echo "ERROR: unknown option $opt"; show_help="yes" > @@ -934,6 +939,8 @@ echo " --trace-file=NAME Full PATH,NAME of file > to store traces" > echo " Default:trace-<pid>" > echo " --disable-spice disable spice" > echo " --enable-spice enable spice" > +echo " --disable-smartcard disable smartcard support" > +echo " --enable-smartcard enable smartcard support" > echo "" > echo "NOTE: The object files are built at the place where configure is > launched" > exit 1 > @@ -2354,6 +2361,7 @@ echo "vhost-net support $vhost_net" > echo "Trace backend $trace_backend" > echo "Trace output file $trace_file-<pid>" > echo "spice support $spice" > +echo "smartcard support $smartcard" > > if test $sdl_too_old = "yes"; then > echo "-> Your SDL version is too old - please upgrade to have SDL support" > @@ -2617,6 +2625,10 @@ if test "$spice" = "yes" ; then > echo "CONFIG_SPICE=y" >> $config_host_mak > fi > > +if test "$smartcard" = "yes" ; then > + echo "CONFIG_SMARTCARD=y" >> $config_host_mak > +fi > + > # XXX: suppress that > if [ "$bsd" = "yes" ] ; then > echo "CONFIG_BSD=y" >> $config_host_mak > diff --git a/hw/ccid.h b/hw/ccid.h > new file mode 100644 > index 0000000..a38f971 > --- /dev/null > +++ b/hw/ccid.h > @@ -0,0 +1,34 @@ > +#ifndef __CCID_H__ > +#define __CCID_H__ > + > +#include "qdev.h" > + > +typedef struct CCIDCardState CCIDCardState; > +typedef struct CCIDCardInfo CCIDCardInfo; > + > +struct CCIDCardState { > + DeviceState qdev; > +}; > + > +struct CCIDCardInfo { > + DeviceInfo qdev; > + void (*print)(Monitor *mon, CCIDCardState *card, int indent); > + const uint8_t *(*get_atr)(CCIDCardState *card, uint32_t *len); > + void (*apdu_from_guest)(CCIDCardState *card, const uint8_t *apdu, > uint32_t len); > + int (*exitfn)(CCIDCardState *card); > + int (*initfn)(CCIDCardState *card); > +}; > + > +void ccid_card_send_apdu_to_guest(CCIDCardState *card, uint8_t* apdu, > uint32_t len); > +void ccid_card_card_removed(CCIDCardState *card); > +void ccid_card_card_inserted(CCIDCardState *card); > +void ccid_card_card_error(CCIDCardState *card, uint64_t error); > +void ccid_card_qdev_register(CCIDCardInfo *card); > + > +/* support guest visible insertion/removal of ccid devices based on actual > + * devices connected/removed. Called by card implementation (passthru, > local) */ > +int ccid_card_ccid_attach(CCIDCardState *card); > +void ccid_card_ccid_detach(CCIDCardState *card); > + > +#endif // __CCID_H__ > + > diff --git a/hw/usb-ccid.c b/hw/usb-ccid.c > new file mode 100644 > index 0000000..66c1dba > --- /dev/null > +++ b/hw/usb-ccid.c > @@ -0,0 +1,1342 @@ > +/* > + * CCID Device emulation > + * > + * Based on usb-serial.c: > + * Copyright (c) 2006 CodeSourcery. > + * Copyright (c) 2008 Samuel Thibault <samuel.thiba...@ens-lyon.org> > + * Written by Paul Brook, reused for FTDI by Samuel Thibault, > + * Reused for CCID by Alon Levy. > + * Contributed to by Robert Relyea > + * Copyright (c) 2010 Red Hat. > + * > + * This code is licenced under the LGPL. > + */ > + > +/* References: > + * > + * CCID Specification Revision 1.1 April 22nd 2005 > + * "Universal Serial Bus, Device Class: Smart Card" > + * Specification for Integrated Circuit(s) Cards Interface Devices > + * > + * 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 happens > + * when we send a too short packet, seen in uhci-usb.c, resulting from > + * a urb requesting SPD and us returning a smaller packet. > + * Not sure which messages trigger this. > + * > + */ > + > +#include "qemu-common.h" > +#include "qemu-error.h" > +#include "usb.h" > +#include "monitor.h" > + > +#include "hw/ccid.h" > + > +//#define DEBUG_CCID > + > +#define DPRINTF(s, lvl, fmt, ...) \ > +do { if (lvl <= s->debug) { printf("usb-ccid: " fmt , ## __VA_ARGS__); } } > while (0) > + > +#define CCID_DEV_NAME "usb-ccid" > + > +/* 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 InterfaceOutClass > ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8) > +#define InterfaceInClass ((USB_DIR_IN > |USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8) > + > +#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 " QEMU_VERSION > +#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 - unkonwn state. rest are RFU > + */ > +}; > + > +typedef struct __attribute__ ((__packed__)) {
Please don't use anonymous structs. > + uint8_t bMessageType; Why aHungarian nNotation? It's not QEMU style. > + uint32_t dwLength; > + uint8_t bSlot; > + uint8_t bSeq; > +} CCID_Header; Packed structure with unaligned fields. Will this work? > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_Header hdr; > + uint8_t bStatus; /* Only used in BULK_IN */ > + uint8_t bError; /* Only used in BULK_IN */ > +} CCID_BULK_IN; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_BULK_IN b; > + uint8_t bClockStatus; > +} CCID_SlotStatus; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_BULK_IN b; > + uint8_t bProtocolNum; > + uint8_t abProtocolDataStructure[0]; > +} CCID_Parameter; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_BULK_IN b; > + uint8_t bChainParameter; > + uint8_t abData[0]; > +} CCID_DataBlock; > + > +/* 6.1.4 PC_to_RDR_XfrBlock */ > +typedef struct __attribute__ ((__packed__)) { > + CCID_Header hdr; > + uint8_t bBWI; /* Block Waiting Timeout */ > + uint16_t wLevelParameter; > + uint8_t abData[0]; > +} CCID_XferBlock; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_Header hdr; > + uint8_t bPowerSelect; > + uint16_t abRFU; > +} CCID_IccPowerOn; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_Header hdr; > + uint16_t abRFU; > +} CCID_IccPowerOff; > + > +typedef struct __attribute__ ((__packed__)) { > + CCID_Header hdr; > + uint8_t bProtocolNum; > + uint8_t abProtocolDataStructure[0]; > +} CCID_SetParameter; > + > +typedef struct { > + 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_t { > + uint8_t slot; > + uint8_t seq; > +} answer_t; > + answer_t is not in line with CODING_STYLE. > +/* pending BULK_IN messages */ > +typedef struct bulk_in_t { > + uint8_t data[BULK_IN_BUF_SIZE]; > + uint32_t len; > + uint32_t pos; > +} bulk_in_t; Neither is this. > + > +enum { > + MIGRATION_NONE, > + MIGRATION_MIGRATED, > +}; > + > +typedef struct CCIDBus CCIDBus; > +typedef struct USBCCIDState USBCCIDState; > + > +#define MAX_PROTOCOL_SIZE 7 > + > +/** > + * powered - defaults to true, changed by PowerOn/PowerOff messages > + */ > +struct USBCCIDState { > + USBDevice dev; > + CCIDBus *bus; > + CCIDCardState *card; > + CCIDCardInfo *cardinfo; /* caching the info pointer */ > + uint8_t debug; > + uint8_t auto_attach; > + bulk_in_t 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; > + bulk_in_t *current_bulk_in; > + uint8_t bulk_out_data[BULK_OUT_DATA_SIZE]; > + uint32_t bulk_out_pos; > + uint8_t bmSlotICCState; > + uint8_t powered; > + uint8_t notify_slot_change; > + uint64_t last_answer_error; > + answer_t 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; > + uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE]; > + uint32_t ulProtocolDataStructureSize; > + uint8_t attached_vmstate; > + uint32_t state_vmstate; > + uint8_t migration_state; > + uint32_t migration_target_ip; > + uint16_t migration_target_port; > +}; > + > +/* Slot specific variables. We emulate a single slot card reader. > + */ > + > + > +/* 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_dev_descriptor[] = { > + 0x12, /* u8 bLength; */ > + USB_DT_DEVICE, /* u8 bDescriptorType; Device */ > + 0x10, 0x01, /* u16 bcdUSB; v1.1 */ > + > + 0x00, /* u8 bDeviceClass; */ > + 0x00, /* u8 bDeviceSubClass; */ > + 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ > + 0x40, /* u8 bMaxPacketSize0; 8 Bytes (valid: 8,16,32,64) */ > + > + /* Vendor and product id are arbitrary. */ > + /* u16 idVendor */ > + CCID_VENDOR_ID & 0xff, CCID_VENDOR_ID >> 8, > + /* u16 idProduct */ > + CCID_PRODUCT_ID & 0xff, CCID_PRODUCT_ID >> 8, > + /* u16 bcdDevice */ > + CCID_DEVICE_VERSION & 0xff, CCID_DEVICE_VERSION >> 8, > + 0x01, /* u8 iManufacturer; */ > + 0x02, /* u8 iProduct; */ > + 0x03, /* u8 iSerialNumber; */ > + 0x01, /* u8 bNumConfigurations; */ > +}; > + > +static const uint8_t qemu_ccid_config_descriptor[] = { > + > + /* one configuration */ > + 0x09, /* u8 bLength; */ > + USB_DT_CONFIG, /* u8 bDescriptorType; Configuration */ > + 0x5d, 0x00, /* u16 wTotalLength; 9+9+54+7+7+7 */ > + 0x01, /* u8 bNumInterfaces; (1) */ > + 0x01, /* u8 bConfigurationValue; */ > + 0x00, /* u8 iConfiguration; */ > + 0xe0, /* u8 bmAttributes; > + Bit 7: must be set, > + 6: Self-powered, > + 5: Remote wakeup, > + 4..0: resvd */ > + 100/2, /* u8 MaxPower; 50 == 100mA */ > + > + /* one interface */ > + 0x09, /* u8 if_bLength; */ > + USB_DT_INTERFACE, /* u8 if_bDescriptorType; Interface */ > + 0x00, /* u8 if_bInterfaceNumber; */ > + 0x00, /* u8 if_bAlternateSetting; */ > + 0x03, /* u8 if_bNumEndpoints; */ > + 0x0b, /* u8 if_bInterfaceClass; Smart Card Device Class */ > + 0x00, /* u8 if_bInterfaceSubClass; Subclass code */ > + 0x00, /* u8 if_bInterfaceProtocol; Protocol code */ > + 0x04, /* u8 if_iInterface; Index of string 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 > */ > + > + 0x03, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/ > + 0x00, 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, 0x11, 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; */ > + > + /* Interrupt-IN endpoint */ > + 0x07, /* u8 ep_bLength; */ > + /* u8 ep_bDescriptorType; Endpoint */ > + USB_DT_ENDPOINT, > + /* u8 ep_bEndpointAddress; IN Endpoint 1 */ > + 0x80 | CCID_INT_IN_EP, > + 0x03, /* u8 ep_bmAttributes; Interrupt */ > + 0x40, 0x00, /* u16 ep_wMaxPacketSize; */ > + 0xff, /* u8 ep_bInterval; */ > + > + /* Bulk-In endpoint */ > + 0x07, /* u8 ep_bLength; */ > + /* u8 ep_bDescriptorType; Endpoint */ > + USB_DT_ENDPOINT, > + /* u8 ep_bEndpointAddress; IN Endpoint 2 */ > + 0x80 | CCID_BULK_IN_EP, > + 0x02, /* u8 ep_bmAttributes; Bulk */ > + 0x40, 0x00, /* u16 ep_wMaxPacketSize; */ > + 0x00, /* u8 ep_bInterval; */ > + > + /* Bulk-Out endpoint */ > + 0x07, /* u8 ep_bLength; */ > + /* u8 ep_bDescriptorType; Endpoint */ > + USB_DT_ENDPOINT, > + /* u8 ep_bEndpointAddress; OUT Endpoint 3 */ > + CCID_BULK_OUT_EP, > + 0x02, /* u8 ep_bmAttributes; Bulk */ > + 0x40, 0x00, /* u16 ep_wMaxPacketSize; */ > + 0x00, /* u8 ep_bInterval; */ > + > +}; > + > +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) > +{ > +#ifdef DEBUG_CCID > + answer_t *answer; > + int i, count; > + > + printf("usb-ccid: pending answers:"); > + if (!ccid_has_pending_answers(s)) { > + printf(" 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) { > + printf("%d:%d\n", answer->slot, answer->seq); > + } else { > + printf("%d:%d,", answer->slot, answer->seq); > + } > + } > +#endif > +} > + > +static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr) > +{ > + answer_t* answer; > + > + assert(s->pending_answers_num++ < 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_t *answer; > + > + assert(s->pending_answers_num-- > 0); > + 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) > +{ > + bulk_in_t* bulk_in; > + > + DPRINTF(s, 4, "%s: QUEUE: reserve %d bytes\n", __func__, len); > + > + /* look for an existing element */ > + if (len > BULK_IN_BUF_SIZE) { > + printf("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) { > + printf("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); > + if (s->auto_attach == 0 && s->dev.attached) { > + usb_device_detach(&s->dev); > + } > +} > + > +static void ccid_handle_reset(USBDevice *dev) > +{ > + USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); > + > + DPRINTF(s, 1, "Reset\n"); > + > + ccid_reset(s); > +} > + > +static int ccid_handle_control(USBDevice *dev, int request, int value, > + int index, int length, uint8_t *data) > +{ > + USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); > + int ret = 0; > + > + DPRINTF(s, 1, "got control %x, value %x\n",request, value); > + switch (request) { > + case DeviceRequest | USB_REQ_GET_STATUS: > + data[0] = (0 << USB_DEVICE_SELF_POWERED) | > + (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); > + data[1] = 0x00; > + ret = 2; > + break; > + case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: > + if (value == USB_DEVICE_REMOTE_WAKEUP) { > + dev->remote_wakeup = 0; > + } else { > + goto fail; > + } > + ret = 0; > + break; > + case DeviceOutRequest | USB_REQ_SET_FEATURE: > + if (value == USB_DEVICE_REMOTE_WAKEUP) { > + dev->remote_wakeup = 1; > + } else { > + goto fail; > + } > + ret = 0; > + break; > + case DeviceOutRequest | USB_REQ_SET_ADDRESS: > + dev->addr = value; > + ret = 0; > + break; > + case DeviceRequest | USB_REQ_GET_DESCRIPTOR: > + switch(value >> 8) { > + case USB_DT_DEVICE: > + memcpy(data, qemu_ccid_dev_descriptor, > + sizeof(qemu_ccid_dev_descriptor)); > + ret = sizeof(qemu_ccid_dev_descriptor); > + break; > + case USB_DT_CONFIG: > + memcpy(data, qemu_ccid_config_descriptor, > + sizeof(qemu_ccid_config_descriptor)); > + ret = sizeof(qemu_ccid_config_descriptor); > + break; > + case USB_DT_STRING: > + switch(value & 0xff) { > + case 0: > + /* language ids */ > + data[0] = 4; > + data[1] = 3; > + data[2] = 0x09; > + data[3] = 0x04; > + ret = 4; > + break; > + case 1: > + /* vendor description */ > + ret = set_usb_string(data, CCID_VENDOR_DESCRIPTION); > + break; > + case 2: > + /* product description */ > + ret = set_usb_string(data, CCID_PRODUCT_DESCRIPTION); > + break; > + case 3: > + /* serial number */ > + ret = set_usb_string(data, CCID_SERIAL_NUMBER_STRING); > + break; > + case 4: > + /* interface name */ > + ret = set_usb_string(data, CCID_INTERFACE_NAME); > + break; > + default: > + goto fail; > + } > + break; > + default: > + goto fail; > + } > + break; > + case DeviceRequest | USB_REQ_GET_CONFIGURATION: > + data[0] = 1; > + ret = 1; > + break; > + case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: > + /* Only one configuration - we just ignore the request */ > + ret = 0; > + break; > + case DeviceRequest | USB_REQ_GET_INTERFACE: > + data[0] = 0; > + ret = 1; > + break; > + case InterfaceOutRequest | USB_REQ_SET_INTERFACE: > + ret = 0; > + break; > + case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: > + ret = 0; > + break; > + > + /* Class specific requests. */ > + case InterfaceOutClass | CCID_CONTROL_ABORT: > + DPRINTF(s, 1, "ccid_control abort UNIMPLEMENTED\n"); > + ret = USB_RET_STALL; > + break; > + case InterfaceInClass | CCID_CONTROL_GET_CLOCK_FREQUENCIES: > + DPRINTF(s, 1, "ccid_control get clock frequencies UNIMPLEMENTED\n"); > + ret = USB_RET_STALL; > + break; > + case InterfaceInClass | CCID_CONTROL_GET_DATA_RATES: > + DPRINTF(s, 1, "ccid_control get data rates UNIMPLEMENTED\n"); > + ret = USB_RET_STALL; > + break; > + default: > + fail: > + DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n", > request, value); > + ret = USB_RET_STALL; > + break; > + } > + return ret; > +} > + > +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, 4, "status = %d\n", 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); > +} > + > +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; > + memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len); > + ccid_reset_error_status(s); > +} > + > +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 = len; This assumes that host endianess happens to match what USB uses.