include/hw/usb.h

   1 #ifndef QEMU_USB_H
   2 #define QEMU_USB_H
   3
   4 /*
   5  * QEMU USB API
   6  *
   7  * Copyright (c) 2005 Fabrice Bellard
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a copy
  10  * of this software and associated documentation files (the "Software"), to deal
  11  * in the Software without restriction, including without limitation the rights
  12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13  * copies of the Software, and to permit persons to whom the Software is
  14  * furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included in
  17  * all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  22  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25  * THE SOFTWARE.
  26  */
  27
  28 #include "exec/memory.h"
  29 #include "hw/qdev-core.h"
  30 #include "qemu/iov.h"
  31 #include "qemu/queue.h"
  32 #include "qom/object.h"
  33
  34 /* Constants related to the USB / PCI interaction */
  35 #define USB_SBRN    0x60 /* Serial Bus Release Number Register */
  36 #define USB_RELEASE_1  0x10 /* USB 1.0 */
  37 #define USB_RELEASE_2  0x20 /* USB 2.0 */
  38 #define USB_RELEASE_3  0x30 /* USB 3.0 */
  39
  40 #define USB_TOKEN_SETUP 0x2d
  41 #define USB_TOKEN_IN    0x69 /* device -> host */
  42 #define USB_TOKEN_OUT   0xe1 /* host -> device */
  43
  44 #define USB_RET_SUCCESS           (0)
  45 #define USB_RET_NODEV             (-1)
  46 #define USB_RET_NAK               (-2)
  47 #define USB_RET_STALL             (-3)
  48 #define USB_RET_BABBLE            (-4)
  49 #define USB_RET_IOERROR           (-5)
  50 #define USB_RET_ASYNC             (-6)
  51 #define USB_RET_ADD_TO_QUEUE      (-7)
  52 #define USB_RET_REMOVE_FROM_QUEUE (-8)
  53
  54 #define USB_SPEED_LOW   0
  55 #define USB_SPEED_FULL  1
  56 #define USB_SPEED_HIGH  2
  57 #define USB_SPEED_SUPER 3
  58
  59 #define USB_SPEED_MASK_LOW   (1 << USB_SPEED_LOW)
  60 #define USB_SPEED_MASK_FULL  (1 << USB_SPEED_FULL)
  61 #define USB_SPEED_MASK_HIGH  (1 << USB_SPEED_HIGH)
  62 #define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER)
  63
  64 #define USB_STATE_NOTATTACHED 0
  65 #define USB_STATE_ATTACHED    1
  66 //#define USB_STATE_POWERED     2
  67 #define USB_STATE_DEFAULT     3
  68 //#define USB_STATE_ADDRESS     4
  69 //#define       USB_STATE_CONFIGURED  5
  70 #define USB_STATE_SUSPENDED   6
  71
  72 #define USB_CLASS_AUDIO                 1
  73 #define USB_CLASS_COMM                  2
  74 #define USB_CLASS_HID                   3
  75 #define USB_CLASS_PHYSICAL              5
  76 #define USB_CLASS_STILL_IMAGE           6
  77 #define USB_CLASS_PRINTER               7
  78 #define USB_CLASS_MASS_STORAGE          8
  79 #define USB_CLASS_HUB                   9
  80 #define USB_CLASS_CDC_DATA              0x0a
  81 #define USB_CLASS_CSCID                 0x0b
  82 #define USB_CLASS_CONTENT_SEC           0x0d
  83 #define USB_CLASS_APP_SPEC              0xfe
  84 #define USB_CLASS_VENDOR_SPEC           0xff
  85
  86 #define USB_SUBCLASS_UNDEFINED          0
  87 #define USB_SUBCLASS_AUDIO_CONTROL      1
  88 #define USB_SUBCLASS_AUDIO_STREAMING    2
  89 #define USB_SUBCLASS_AUDIO_MIDISTREAMING 3
  90
  91 #define USB_DIR_OUT                     0
  92 #define USB_DIR_IN                      0x80
  93
  94 #define USB_TYPE_MASK                   (0x03 << 5)
  95 #define USB_TYPE_STANDARD               (0x00 << 5)
  96 #define USB_TYPE_CLASS                  (0x01 << 5)
  97 #define USB_TYPE_VENDOR                 (0x02 << 5)
  98 #define USB_TYPE_RESERVED               (0x03 << 5)
  99
 100 #define USB_RECIP_MASK                  0x1f
 101 #define USB_RECIP_DEVICE                0x00
 102 #define USB_RECIP_INTERFACE             0x01
 103 #define USB_RECIP_ENDPOINT              0x02
 104 #define USB_RECIP_OTHER                 0x03
 105
 106 #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
 107 #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
 108 #define VendorDeviceRequest ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
 109 #define VendorDeviceOutRequest \
 110         ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
 111
 112 #define InterfaceRequest                                        \
 113         ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
 114 #define InterfaceOutRequest \
 115         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
 116 #define ClassInterfaceRequest \
 117         ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
 118 #define ClassInterfaceOutRequest \
 119         ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
 120 #define VendorInterfaceRequest \
 121         ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
 122 #define VendorInterfaceOutRequest \
 123         ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
 124
 125 #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 126 #define EndpointOutRequest \
 127         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 128
 129 #define USB_REQ_GET_STATUS              0x00
 130 #define USB_REQ_CLEAR_FEATURE           0x01
 131 #define USB_REQ_SET_FEATURE             0x03
 132 #define USB_REQ_SET_ADDRESS             0x05
 133 #define USB_REQ_GET_DESCRIPTOR          0x06
 134 #define USB_REQ_SET_DESCRIPTOR          0x07
 135 #define USB_REQ_GET_CONFIGURATION       0x08
 136 #define USB_REQ_SET_CONFIGURATION       0x09
 137 #define USB_REQ_GET_INTERFACE           0x0A
 138 #define USB_REQ_SET_INTERFACE           0x0B
 139 #define USB_REQ_SYNCH_FRAME             0x0C
 140 #define USB_REQ_SET_SEL                 0x30
 141 #define USB_REQ_SET_ISOCH_DELAY         0x31
 142
 143 #define USB_DEVICE_SELF_POWERED         0
 144 #define USB_DEVICE_REMOTE_WAKEUP        1
 145
 146 #define USB_DT_DEVICE                   0x01
 147 #define USB_DT_CONFIG                   0x02
 148 #define USB_DT_STRING                   0x03
 149 #define USB_DT_INTERFACE                0x04
 150 #define USB_DT_ENDPOINT                 0x05
 151 #define USB_DT_DEVICE_QUALIFIER         0x06
 152 #define USB_DT_OTHER_SPEED_CONFIG       0x07
 153 #define USB_DT_DEBUG                    0x0A
 154 #define USB_DT_INTERFACE_ASSOC          0x0B
 155 #define USB_DT_BOS                      0x0F
 156 #define USB_DT_DEVICE_CAPABILITY        0x10
 157 #define USB_DT_CS_INTERFACE             0x24
 158 #define USB_DT_CS_ENDPOINT              0x25
 159 #define USB_DT_ENDPOINT_COMPANION       0x30
 160
 161 #define USB_DEV_CAP_WIRELESS            0x01
 162 #define USB_DEV_CAP_USB2_EXT            0x02
 163 #define USB_DEV_CAP_SUPERSPEED          0x03
 164
 165 #define USB_CFG_ATT_ONE              (1 << 7) /* should always be set */
 166 #define USB_CFG_ATT_SELFPOWER        (1 << 6)
 167 #define USB_CFG_ATT_WAKEUP           (1 << 5)
 168 #define USB_CFG_ATT_BATTERY          (1 << 4)
 169
 170 #define USB_ENDPOINT_XFER_CONTROL       0
 171 #define USB_ENDPOINT_XFER_ISOC          1
 172 #define USB_ENDPOINT_XFER_BULK          2
 173 #define USB_ENDPOINT_XFER_INT           3
 174 #define USB_ENDPOINT_XFER_INVALID     255
 175
 176 #define USB_INTERFACE_INVALID         255
 177
 178 typedef struct USBBusOps USBBusOps;
 179 typedef struct USBPort USBPort;
 180 typedef struct USBDevice USBDevice;
 181 typedef struct USBPacket USBPacket;
 182 typedef struct USBCombinedPacket USBCombinedPacket;
 183 typedef struct USBEndpoint USBEndpoint;
 184
 185 typedef struct USBDesc USBDesc;
 186 typedef struct USBDescID USBDescID;
 187 typedef struct USBDescDevice USBDescDevice;
 188 typedef struct USBDescConfig USBDescConfig;
 189 typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
 190 typedef struct USBDescIface USBDescIface;
 191 typedef struct USBDescEndpoint USBDescEndpoint;
 192 typedef struct USBDescOther USBDescOther;
 193 typedef struct USBDescString USBDescString;
 194 typedef struct USBDescMSOS USBDescMSOS;
 195
 196 struct USBDescString {
 197     uint8_t index;
 198     char *str;
 199     QLIST_ENTRY(USBDescString) next;
 200 };
 201
 202 #define USB_MAX_ENDPOINTS  15
 203 #define USB_MAX_INTERFACES 16
 204
 205 struct USBEndpoint {
 206     uint8_t nr;
 207     uint8_t pid;
 208     uint8_t type;
 209     uint8_t ifnum;
 210     int max_packet_size;
 211     int max_streams;
 212     bool pipeline;
 213     bool halted;
 214     USBDevice *dev;
 215     QTAILQ_HEAD(, USBPacket) queue;
 216 };
 217
 218 enum USBDeviceFlags {
 219     USB_DEV_FLAG_FULL_PATH,
 220     USB_DEV_FLAG_IS_HOST,
 221     USB_DEV_FLAG_MSOS_DESC_ENABLE,
 222     USB_DEV_FLAG_MSOS_DESC_IN_USE,
 223 };
 224
 225 /* definition of a USB device */
 226 struct USBDevice {
 227     DeviceState qdev;
 228     USBPort *port;
 229     char *port_path;
 230     char *serial;
 231     void *opaque;
 232     uint32_t flags;
 233
 234     char *pcap_filename;
 235     FILE *pcap;
 236
 237     /* Actual connected speed */
 238     int speed;
 239     /* Supported speeds, not in info because it may be variable (hostdevs) */
 240     int speedmask;
 241     uint8_t addr;
 242     char product_desc[32];
 243     int auto_attach;
 244     bool attached;
 245
 246     int32_t state;
 247     uint8_t setup_buf[8];
 248     uint8_t data_buf[4096];
 249     int32_t remote_wakeup;
 250     int32_t setup_state;
 251     int32_t setup_len;
 252     int32_t setup_index;
 253
 254     USBEndpoint ep_ctl;
 255     USBEndpoint ep_in[USB_MAX_ENDPOINTS];
 256     USBEndpoint ep_out[USB_MAX_ENDPOINTS];
 257
 258     QLIST_HEAD(, USBDescString) strings;
 259     const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
 260     const USBDescDevice *device;
 261
 262     int configuration;
 263     int ninterfaces;
 264     int altsetting[USB_MAX_INTERFACES];
 265     const USBDescConfig *config;
 266     const USBDescIface  *ifaces[USB_MAX_INTERFACES];
 267 };
 268
 269 #define TYPE_USB_DEVICE "usb-device"
 270 OBJECT_DECLARE_TYPE(USBDevice, USBDeviceClass, USB_DEVICE)
 271
 272 typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
 273 typedef void (*USBDeviceUnrealize)(USBDevice *dev);
 274
 275 struct USBDeviceClass {
 276     DeviceClass parent_class;
 277
 278     USBDeviceRealize realize;
 279     USBDeviceUnrealize unrealize;
 280
 281     /*
 282      * Walk (enabled) downstream ports, check for a matching device.
 283      * Only hubs implement this.
 284      */
 285     USBDevice *(*find_device)(USBDevice *dev, uint8_t addr);
 286
 287     /*
 288      * Called when a packet is canceled.
 289      */
 290     void (*cancel_packet)(USBDevice *dev, USBPacket *p);
 291
 292     /*
 293      * Attach the device
 294      */
 295     void (*handle_attach)(USBDevice *dev);
 296
 297     /*
 298      * Reset the device
 299      */
 300     void (*handle_reset)(USBDevice *dev);
 301
 302     /*
 303      * Process control request.
 304      * Called from handle_packet().
 305      *
 306      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
 307      * then the number of bytes transferred is stored in p->actual_length
 308      */
 309     void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
 310                            int index, int length, uint8_t *data);
 311
 312     /*
 313      * Process data transfers (both BULK and ISOC).
 314      * Called from handle_packet().
 315      *
 316      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
 317      * then the number of bytes transferred is stored in p->actual_length
 318      */
 319     void (*handle_data)(USBDevice *dev, USBPacket *p);
 320
 321     void (*set_interface)(USBDevice *dev, int interface,
 322                           int alt_old, int alt_new);
 323
 324     /*
 325      * Called when the hcd is done queuing packets for an endpoint, only
 326      * necessary for devices which can return USB_RET_ADD_TO_QUEUE.
 327      */
 328     void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep);
 329
 330     /*
 331      * Called by the hcd to let the device know the queue for an endpoint
 332      * has been unlinked / stopped. Optional may be NULL.
 333      */
 334     void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
 335
 336     /*
 337      * Called by the hcd to alloc / free streams on a bulk endpoint.
 338      * Optional may be NULL.
 339      */
 340     int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
 341                          int streams);
 342     void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
 343
 344     const char *product_desc;
 345     const USBDesc *usb_desc;
 346     bool attached_settable;
 347 };
 348
 349 typedef struct USBPortOps {
 350     void (*attach)(USBPort *port);
 351     void (*detach)(USBPort *port);
 352     /*
 353      * This gets called when a device downstream from the device attached to
 354      * the port (iow attached through a hub) gets detached.
 355      */
 356     void (*child_detach)(USBPort *port, USBDevice *child);
 357     void (*wakeup)(USBPort *port);
 358     /*
 359      * Note that port->dev will be different then the device from which
 360      * the packet originated when a hub is involved.
 361      */
 362     void (*complete)(USBPort *port, USBPacket *p);
 363 } USBPortOps;
 364
 365 /* USB port on which a device can be connected */
 366 struct USBPort {
 367     USBDevice *dev;
 368     int speedmask;
 369     int hubcount;
 370     char path[16];
 371     USBPortOps *ops;
 372     void *opaque;
 373     int index; /* internal port index, may be used with the opaque */
 374     QTAILQ_ENTRY(USBPort) next;
 375 };
 376
 377 typedef void USBCallback(USBPacket * packet, void *opaque);
 378
 379 typedef enum USBPacketState {
 380     USB_PACKET_UNDEFINED = 0,
 381     USB_PACKET_SETUP,
 382     USB_PACKET_QUEUED,
 383     USB_PACKET_ASYNC,
 384     USB_PACKET_COMPLETE,
 385     USB_PACKET_CANCELED,
 386 } USBPacketState;
 387
 388 /* Structure used to hold information about an active USB packet.  */
 389 struct USBPacket {
 390     /* Data fields for use by the driver.  */
 391     int pid;
 392     uint64_t id;
 393     USBEndpoint *ep;
 394     unsigned int stream;
 395     QEMUIOVector iov;
 396     uint64_t parameter; /* control transfers */
 397     bool short_not_ok;
 398     bool int_req;
 399     int status; /* USB_RET_* status code */
 400     int actual_length; /* Number of bytes actually transferred */
 401     /* Internal use by the USB layer.  */
 402     USBPacketState state;
 403     USBCombinedPacket *combined;
 404     QTAILQ_ENTRY(USBPacket) queue;
 405     QTAILQ_ENTRY(USBPacket) combined_entry;
 406 };
 407
 408 struct USBCombinedPacket {
 409     USBPacket *first;
 410     QTAILQ_HEAD(, USBPacket) packets;
 411     QEMUIOVector iov;
 412 };
 413
 414 void usb_packet_init(USBPacket *p);
 415 void usb_packet_set_state(USBPacket *p, USBPacketState state);
 416 void usb_packet_check_state(USBPacket *p, USBPacketState expected);
 417 void usb_packet_setup(USBPacket *p, int pid,
 418                       USBEndpoint *ep, unsigned int stream,
 419                       uint64_t id, bool short_not_ok, bool int_req);
 420 void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
 421 int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
 422 void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl);
 423 void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
 424 void usb_packet_skip(USBPacket *p, size_t bytes);
 425 size_t usb_packet_size(USBPacket *p);
 426 void usb_packet_cleanup(USBPacket *p);
 427
 428 static inline bool usb_packet_is_inflight(USBPacket *p)
 429 {
 430     return (p->state == USB_PACKET_QUEUED ||
 431             p->state == USB_PACKET_ASYNC);
 432 }
 433
 434 USBDevice *usb_find_device(USBPort *port, uint8_t addr);
 435
 436 void usb_handle_packet(USBDevice *dev, USBPacket *p);
 437 void usb_packet_complete(USBDevice *dev, USBPacket *p);
 438 void usb_packet_complete_one(USBDevice *dev, USBPacket *p);
 439 void usb_cancel_packet(USBPacket * p);
 440
 441 void usb_ep_init(USBDevice *dev);
 442 void usb_ep_reset(USBDevice *dev);
 443 void usb_ep_dump(USBDevice *dev);
 444 struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep);
 445 uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
 446 void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
 447 void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
 448 void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
 449                                 uint16_t raw);
 450 void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw);
 451 void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted);
 452 USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep,
 453                                     uint64_t id);
 454
 455 void usb_ep_combine_input_packets(USBEndpoint *ep);
 456 void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p);
 457 void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p);
 458
 459 void usb_pick_speed(USBPort *port);
 460 void usb_attach(USBPort *port);
 461 void usb_detach(USBPort *port);
 462 void usb_port_reset(USBPort *port);
 463 void usb_device_reset(USBDevice *dev);
 464 void usb_wakeup(USBEndpoint *ep, unsigned int stream);
 465 void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
 466
 467 /* usb-linux.c */
 468 void hmp_info_usbhost(Monitor *mon, const QDict *qdict);
 469 bool usb_host_dev_is_scsi_storage(USBDevice *usbdev);
 470
 471 /* usb ports of the VM */
 472
 473 #define VM_USB_HUB_SIZE 8
 474
 475 /* usb-bus.c */
 476
 477 #define TYPE_USB_BUS "usb-bus"
 478 OBJECT_DECLARE_SIMPLE_TYPE(USBBus, USB_BUS)
 479
 480 struct USBBus {
 481     BusState qbus;
 482     USBBusOps *ops;
 483     int busnr;
 484     int nfree;
 485     int nused;
 486     QTAILQ_HEAD(, USBPort) free;
 487     QTAILQ_HEAD(, USBPort) used;
 488     QTAILQ_ENTRY(USBBus) next;
 489 };
 490
 491 struct USBBusOps {
 492     void (*register_companion)(USBBus *bus, USBPort *ports[],
 493                                uint32_t portcount, uint32_t firstport,
 494                                Error **errp);
 495     void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream);
 496 };
 497
 498 void usb_bus_new(USBBus *bus, size_t bus_size,
 499                  USBBusOps *ops, DeviceState *host);
 500 void usb_bus_release(USBBus *bus);
 501 USBBus *usb_bus_find(int busnr);
 502 void usb_legacy_register(const char *typename, const char *usbdevice_name,
 503                          USBDevice *(*usbdevice_init)(const char *params));
 504 USBDevice *usb_new(const char *name);
 505 bool usb_realize_and_unref(USBDevice *dev, USBBus *bus, Error **errp);
 506 USBDevice *usb_create_simple(USBBus *bus, const char *name);
 507 USBDevice *usbdevice_create(const char *cmdline);
 508 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
 509                        USBPortOps *ops, int speedmask);
 510 void usb_register_companion(const char *masterbus, USBPort *ports[],
 511                             uint32_t portcount, uint32_t firstport,
 512                             void *opaque, USBPortOps *ops, int speedmask,
 513                             Error **errp);
 514 void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
 515 void usb_unregister_port(USBBus *bus, USBPort *port);
 516 void usb_claim_port(USBDevice *dev, Error **errp);
 517 void usb_release_port(USBDevice *dev);
 518 void usb_device_attach(USBDevice *dev, Error **errp);
 519 int usb_device_detach(USBDevice *dev);
 520 void usb_check_attach(USBDevice *dev, Error **errp);
 521
 522 static inline USBBus *usb_bus_from_device(USBDevice *d)
 523 {
 524     return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
 525 }
 526
 527 extern const VMStateDescription vmstate_usb_device;
 528
 529 #define VMSTATE_USB_DEVICE(_field, _state) {                         \
 530     .name       = (stringify(_field)),                               \
 531     .size       = sizeof(USBDevice),                                 \
 532     .vmsd       = &vmstate_usb_device,                               \
 533     .flags      = VMS_STRUCT,                                        \
 534     .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
 535 }
 536
 537 USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr);
 538
 539 void usb_device_cancel_packet(USBDevice *dev, USBPacket *p);
 540
 541 void usb_device_handle_attach(USBDevice *dev);
 542
 543 void usb_device_handle_reset(USBDevice *dev);
 544
 545 void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
 546                                int val, int index, int length, uint8_t *data);
 547
 548 void usb_device_handle_data(USBDevice *dev, USBPacket *p);
 549
 550 void usb_device_set_interface(USBDevice *dev, int interface,
 551                               int alt_old, int alt_new);
 552
 553 void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
 554
 555 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
 556
 557 int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
 558                              int streams);
 559 void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
 560
 561 const char *usb_device_get_product_desc(USBDevice *dev);
 562
 563 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
 564
 565 /* quirks.c */
 566
 567 /* In bulk endpoints are streaming data sources (iow behave like isoc eps) */
 568 #define USB_QUIRK_BUFFER_BULK_IN        0x01
 569 /* Bulk pkts in FTDI format, need special handling when combining packets */
 570 #define USB_QUIRK_IS_FTDI               0x02
 571
 572 int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
 573                    uint8_t interface_class, uint8_t interface_subclass,
 574                    uint8_t interface_protocol);
 575
 576 /* pcap.c */
 577 void usb_pcap_init(FILE *fp);
 578 void usb_pcap_ctrl(USBPacket *p, bool setup);
 579 void usb_pcap_data(USBPacket *p, bool setup);
 580
 581 #endif