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 "hw/qdev.h"
  29 #include "qemu/iov.h"
  30 #include "qemu/queue.h"
  31
  32 /* Constants related to the USB / PCI interaction */
  33 #define USB_SBRN    0x60 /* Serial Bus Release Number Register */
  34 #define USB_RELEASE_1  0x10 /* USB 1.0 */
  35 #define USB_RELEASE_2  0x20 /* USB 2.0 */
  36 #define USB_RELEASE_3  0x30 /* USB 3.0 */
  37
  38 #define USB_TOKEN_SETUP 0x2d
  39 #define USB_TOKEN_IN    0x69 /* device -> host */
  40 #define USB_TOKEN_OUT   0xe1 /* host -> device */
  41
  42 #define USB_RET_SUCCESS           (0)
  43 #define USB_RET_NODEV             (-1)
  44 #define USB_RET_NAK               (-2)
  45 #define USB_RET_STALL             (-3)
  46 #define USB_RET_BABBLE            (-4)
  47 #define USB_RET_IOERROR           (-5)
  48 #define USB_RET_ASYNC             (-6)
  49 #define USB_RET_ADD_TO_QUEUE      (-7)
  50 #define USB_RET_REMOVE_FROM_QUEUE (-8)
  51
  52 #define USB_SPEED_LOW   0
  53 #define USB_SPEED_FULL  1
  54 #define USB_SPEED_HIGH  2
  55 #define USB_SPEED_SUPER 3
  56
  57 #define USB_SPEED_MASK_LOW   (1 << USB_SPEED_LOW)
  58 #define USB_SPEED_MASK_FULL  (1 << USB_SPEED_FULL)
  59 #define USB_SPEED_MASK_HIGH  (1 << USB_SPEED_HIGH)
  60 #define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER)
  61
  62 #define USB_STATE_NOTATTACHED 0
  63 #define USB_STATE_ATTACHED    1
  64 //#define USB_STATE_POWERED     2
  65 #define USB_STATE_DEFAULT     3
  66 //#define USB_STATE_ADDRESS     4
  67 //#define       USB_STATE_CONFIGURED  5
  68 #define USB_STATE_SUSPENDED   6
  69
  70 #define USB_CLASS_AUDIO                 1
  71 #define USB_CLASS_COMM                  2
  72 #define USB_CLASS_HID                   3
  73 #define USB_CLASS_PHYSICAL              5
  74 #define USB_CLASS_STILL_IMAGE           6
  75 #define USB_CLASS_PRINTER               7
  76 #define USB_CLASS_MASS_STORAGE          8
  77 #define USB_CLASS_HUB                   9
  78 #define USB_CLASS_CDC_DATA              0x0a
  79 #define USB_CLASS_CSCID                 0x0b
  80 #define USB_CLASS_CONTENT_SEC           0x0d
  81 #define USB_CLASS_APP_SPEC              0xfe
  82 #define USB_CLASS_VENDOR_SPEC           0xff
  83
  84 #define USB_SUBCLASS_UNDEFINED          0
  85 #define USB_SUBCLASS_AUDIO_CONTROL      1
  86 #define USB_SUBCLASS_AUDIO_STREAMING    2
  87 #define USB_SUBCLASS_AUDIO_MIDISTREAMING 3
  88
  89 #define USB_DIR_OUT                     0
  90 #define USB_DIR_IN                      0x80
  91
  92 #define USB_TYPE_MASK                   (0x03 << 5)
  93 #define USB_TYPE_STANDARD               (0x00 << 5)
  94 #define USB_TYPE_CLASS                  (0x01 << 5)
  95 #define USB_TYPE_VENDOR                 (0x02 << 5)
  96 #define USB_TYPE_RESERVED               (0x03 << 5)
  97
  98 #define USB_RECIP_MASK                  0x1f
  99 #define USB_RECIP_DEVICE                0x00
 100 #define USB_RECIP_INTERFACE             0x01
 101 #define USB_RECIP_ENDPOINT              0x02
 102 #define USB_RECIP_OTHER                 0x03
 103
 104 #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
 105 #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
 106 #define VendorDeviceRequest ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
 107 #define VendorDeviceOutRequest \
 108         ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
 109
 110 #define InterfaceRequest                                        \
 111         ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
 112 #define InterfaceOutRequest \
 113         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
 114 #define ClassInterfaceRequest \
 115         ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
 116 #define ClassInterfaceOutRequest \
 117         ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
 118 #define VendorInterfaceRequest \
 119         ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
 120 #define VendorInterfaceOutRequest \
 121         ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
 122
 123 #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 124 #define EndpointOutRequest \
 125         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 126
 127 #define USB_REQ_GET_STATUS              0x00
 128 #define USB_REQ_CLEAR_FEATURE           0x01
 129 #define USB_REQ_SET_FEATURE             0x03
 130 #define USB_REQ_SET_ADDRESS             0x05
 131 #define USB_REQ_GET_DESCRIPTOR          0x06
 132 #define USB_REQ_SET_DESCRIPTOR          0x07
 133 #define USB_REQ_GET_CONFIGURATION       0x08
 134 #define USB_REQ_SET_CONFIGURATION       0x09
 135 #define USB_REQ_GET_INTERFACE           0x0A
 136 #define USB_REQ_SET_INTERFACE           0x0B
 137 #define USB_REQ_SYNCH_FRAME             0x0C
 138
 139 #define USB_DEVICE_SELF_POWERED         0
 140 #define USB_DEVICE_REMOTE_WAKEUP        1
 141
 142 #define USB_DT_DEVICE                   0x01
 143 #define USB_DT_CONFIG                   0x02
 144 #define USB_DT_STRING                   0x03
 145 #define USB_DT_INTERFACE                0x04
 146 #define USB_DT_ENDPOINT                 0x05
 147 #define USB_DT_DEVICE_QUALIFIER         0x06
 148 #define USB_DT_OTHER_SPEED_CONFIG       0x07
 149 #define USB_DT_DEBUG                    0x0A
 150 #define USB_DT_INTERFACE_ASSOC          0x0B
 151 #define USB_DT_BOS                      0x0F
 152 #define USB_DT_DEVICE_CAPABILITY        0x10
 153 #define USB_DT_CS_INTERFACE             0x24
 154 #define USB_DT_CS_ENDPOINT              0x25
 155 #define USB_DT_ENDPOINT_COMPANION       0x30
 156
 157 #define USB_DEV_CAP_WIRELESS            0x01
 158 #define USB_DEV_CAP_USB2_EXT            0x02
 159 #define USB_DEV_CAP_SUPERSPEED          0x03
 160
 161 #define USB_CFG_ATT_ONE              (1 << 7) /* should always be set */
 162 #define USB_CFG_ATT_SELFPOWER        (1 << 6)
 163 #define USB_CFG_ATT_WAKEUP           (1 << 5)
 164 #define USB_CFG_ATT_BATTERY          (1 << 4)
 165
 166 #define USB_ENDPOINT_XFER_CONTROL       0
 167 #define USB_ENDPOINT_XFER_ISOC          1
 168 #define USB_ENDPOINT_XFER_BULK          2
 169 #define USB_ENDPOINT_XFER_INT           3
 170 #define USB_ENDPOINT_XFER_INVALID     255
 171
 172 #define USB_INTERFACE_INVALID         255
 173
 174 typedef struct USBBus USBBus;
 175 typedef struct USBBusOps USBBusOps;
 176 typedef struct USBPort USBPort;
 177 typedef struct USBDevice USBDevice;
 178 typedef struct USBPacket USBPacket;
 179 typedef struct USBCombinedPacket USBCombinedPacket;
 180 typedef struct USBEndpoint USBEndpoint;
 181
 182 typedef struct USBDesc USBDesc;
 183 typedef struct USBDescID USBDescID;
 184 typedef struct USBDescDevice USBDescDevice;
 185 typedef struct USBDescConfig USBDescConfig;
 186 typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
 187 typedef struct USBDescIface USBDescIface;
 188 typedef struct USBDescEndpoint USBDescEndpoint;
 189 typedef struct USBDescOther USBDescOther;
 190 typedef struct USBDescString USBDescString;
 191 typedef struct USBDescMSOS USBDescMSOS;
 192
 193 struct USBDescString {
 194     uint8_t index;
 195     char *str;
 196     QLIST_ENTRY(USBDescString) next;
 197 };
 198
 199 #define USB_MAX_ENDPOINTS  15
 200 #define USB_MAX_INTERFACES 16
 201
 202 struct USBEndpoint {
 203     uint8_t nr;
 204     uint8_t pid;
 205     uint8_t type;
 206     uint8_t ifnum;
 207     int max_packet_size;
 208     int max_streams;
 209     bool pipeline;
 210     bool halted;
 211     USBDevice *dev;
 212     QTAILQ_HEAD(, USBPacket) queue;
 213 };
 214
 215 enum USBDeviceFlags {
 216     USB_DEV_FLAG_FULL_PATH,
 217     USB_DEV_FLAG_IS_HOST,
 218     USB_DEV_FLAG_MSOS_DESC_ENABLE,
 219     USB_DEV_FLAG_MSOS_DESC_IN_USE,
 220 };
 221
 222 /* definition of a USB device */
 223 struct USBDevice {
 224     DeviceState qdev;
 225     USBPort *port;
 226     char *port_path;
 227     char *serial;
 228     void *opaque;
 229     uint32_t flags;
 230
 231     /* Actual connected speed */
 232     int speed;
 233     /* Supported speeds, not in info because it may be variable (hostdevs) */
 234     int speedmask;
 235     uint8_t addr;
 236     char product_desc[32];
 237     int auto_attach;
 238     bool attached;
 239
 240     int32_t state;
 241     uint8_t setup_buf[8];
 242     uint8_t data_buf[4096];
 243     int32_t remote_wakeup;
 244     int32_t setup_state;
 245     int32_t setup_len;
 246     int32_t setup_index;
 247
 248     USBEndpoint ep_ctl;
 249     USBEndpoint ep_in[USB_MAX_ENDPOINTS];
 250     USBEndpoint ep_out[USB_MAX_ENDPOINTS];
 251
 252     QLIST_HEAD(, USBDescString) strings;
 253     const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
 254     const USBDescDevice *device;
 255
 256     int configuration;
 257     int ninterfaces;
 258     int altsetting[USB_MAX_INTERFACES];
 259     const USBDescConfig *config;
 260     const USBDescIface  *ifaces[USB_MAX_INTERFACES];
 261 };
 262
 263 #define TYPE_USB_DEVICE "usb-device"
 264 #define USB_DEVICE(obj) \
 265      OBJECT_CHECK(USBDevice, (obj), TYPE_USB_DEVICE)
 266 #define USB_DEVICE_CLASS(klass) \
 267      OBJECT_CLASS_CHECK(USBDeviceClass, (klass), TYPE_USB_DEVICE)
 268 #define USB_DEVICE_GET_CLASS(obj) \
 269      OBJECT_GET_CLASS(USBDeviceClass, (obj), TYPE_USB_DEVICE)
 270
 271 typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
 272 typedef void (*USBDeviceUnrealize)(USBDevice *dev, Error **errp);
 273
 274 typedef struct USBDeviceClass {
 275     DeviceClass parent_class;
 276
 277     USBDeviceRealize realize;
 278     USBDeviceUnrealize unrealize;
 279
 280     /*
 281      * Walk (enabled) downstream ports, check for a matching device.
 282      * Only hubs implement this.
 283      */
 284     USBDevice *(*find_device)(USBDevice *dev, uint8_t addr);
 285
 286     /*
 287      * Called when a packet is canceled.
 288      */
 289     void (*cancel_packet)(USBDevice *dev, USBPacket *p);
 290
 291     /*
 292      * Called when device is destroyed.
 293      */
 294     void (*handle_destroy)(USBDevice *dev);
 295
 296     /*
 297      * Attach the device
 298      */
 299     void (*handle_attach)(USBDevice *dev);
 300
 301     /*
 302      * Reset the device
 303      */
 304     void (*handle_reset)(USBDevice *dev);
 305
 306     /*
 307      * Process control request.
 308      * Called from handle_packet().
 309      *
 310      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
 311      * then the number of bytes transferred is stored in p->actual_length
 312      */
 313     void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
 314                            int index, int length, uint8_t *data);
 315
 316     /*
 317      * Process data transfers (both BULK and ISOC).
 318      * Called from handle_packet().
 319      *
 320      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
 321      * then the number of bytes transferred is stored in p->actual_length
 322      */
 323     void (*handle_data)(USBDevice *dev, USBPacket *p);
 324
 325     void (*set_interface)(USBDevice *dev, int interface,
 326                           int alt_old, int alt_new);
 327
 328     /*
 329      * Called when the hcd is done queuing packets for an endpoint, only
 330      * necessary for devices which can return USB_RET_ADD_TO_QUEUE.
 331      */
 332     void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep);
 333
 334     /*
 335      * Called by the hcd to let the device know the queue for an endpoint
 336      * has been unlinked / stopped. Optional may be NULL.
 337      */
 338     void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
 339
 340     /*
 341      * Called by the hcd to alloc / free streams on a bulk endpoint.
 342      * Optional may be NULL.
 343      */
 344     int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
 345                          int streams);
 346     void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
 347
 348     const char *product_desc;
 349     const USBDesc *usb_desc;
 350 } USBDeviceClass;
 351
 352 typedef struct USBPortOps {
 353     void (*attach)(USBPort *port);
 354     void (*detach)(USBPort *port);
 355     /*
 356      * This gets called when a device downstream from the device attached to
 357      * the port (iow attached through a hub) gets detached.
 358      */
 359     void (*child_detach)(USBPort *port, USBDevice *child);
 360     void (*wakeup)(USBPort *port);
 361     /*
 362      * Note that port->dev will be different then the device from which
 363      * the packet originated when a hub is involved.
 364      */
 365     void (*complete)(USBPort *port, USBPacket *p);
 366 } USBPortOps;
 367
 368 /* USB port on which a device can be connected */
 369 struct USBPort {
 370     USBDevice *dev;
 371     int speedmask;
 372     int hubcount;
 373     char path[16];
 374     USBPortOps *ops;
 375     void *opaque;
 376     int index; /* internal port index, may be used with the opaque */
 377     QTAILQ_ENTRY(USBPort) next;
 378 };
 379
 380 typedef void USBCallback(USBPacket * packet, void *opaque);
 381
 382 typedef enum USBPacketState {
 383     USB_PACKET_UNDEFINED = 0,
 384     USB_PACKET_SETUP,
 385     USB_PACKET_QUEUED,
 386     USB_PACKET_ASYNC,
 387     USB_PACKET_COMPLETE,
 388     USB_PACKET_CANCELED,
 389 } USBPacketState;
 390
 391 /* Structure used to hold information about an active USB packet.  */
 392 struct USBPacket {
 393     /* Data fields for use by the driver.  */
 394     int pid;
 395     uint64_t id;
 396     USBEndpoint *ep;
 397     unsigned int stream;
 398     QEMUIOVector iov;
 399     uint64_t parameter; /* control transfers */
 400     bool short_not_ok;
 401     bool int_req;
 402     int status; /* USB_RET_* status code */
 403     int actual_length; /* Number of bytes actually transferred */
 404     /* Internal use by the USB layer.  */
 405     USBPacketState state;
 406     USBCombinedPacket *combined;
 407     QTAILQ_ENTRY(USBPacket) queue;
 408     QTAILQ_ENTRY(USBPacket) combined_entry;
 409 };
 410
 411 struct USBCombinedPacket {
 412     USBPacket *first;
 413     QTAILQ_HEAD(packets_head, USBPacket) packets;
 414     QEMUIOVector iov;
 415 };
 416
 417 void usb_packet_init(USBPacket *p);
 418 void usb_packet_set_state(USBPacket *p, USBPacketState state);
 419 void usb_packet_check_state(USBPacket *p, USBPacketState expected);
 420 void usb_packet_setup(USBPacket *p, int pid,
 421                       USBEndpoint *ep, unsigned int stream,
 422                       uint64_t id, bool short_not_ok, bool int_req);
 423 void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
 424 int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
 425 void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl);
 426 void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
 427 void usb_packet_skip(USBPacket *p, size_t bytes);
 428 size_t usb_packet_size(USBPacket *p);
 429 void usb_packet_cleanup(USBPacket *p);
 430
 431 static inline bool usb_packet_is_inflight(USBPacket *p)
 432 {
 433     return (p->state == USB_PACKET_QUEUED ||
 434             p->state == USB_PACKET_ASYNC);
 435 }
 436
 437 USBDevice *usb_find_device(USBPort *port, uint8_t addr);
 438
 439 void usb_handle_packet(USBDevice *dev, USBPacket *p);
 440 void usb_packet_complete(USBDevice *dev, USBPacket *p);
 441 void usb_packet_complete_one(USBDevice *dev, USBPacket *p);
 442 void usb_cancel_packet(USBPacket * p);
 443
 444 void usb_ep_init(USBDevice *dev);
 445 void usb_ep_reset(USBDevice *dev);
 446 void usb_ep_dump(USBDevice *dev);
 447 struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep);
 448 uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
 449 void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
 450 void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
 451 void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
 452                                 uint16_t raw);
 453 void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw);
 454 void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted);
 455 USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep,
 456                                     uint64_t id);
 457
 458 void usb_ep_combine_input_packets(USBEndpoint *ep);
 459 void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p);
 460 void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p);
 461
 462 void usb_pick_speed(USBPort *port);
 463 void usb_attach(USBPort *port);
 464 void usb_detach(USBPort *port);
 465 void usb_port_reset(USBPort *port);
 466 void usb_device_reset(USBDevice *dev);
 467 void usb_wakeup(USBEndpoint *ep, unsigned int stream);
 468 void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
 469
 470 /* usb-linux.c */
 471 USBDevice *usb_host_device_open(USBBus *bus, const char *devname);
 472 void hmp_info_usbhost(Monitor *mon, const QDict *qdict);
 473
 474 /* usb ports of the VM */
 475
 476 #define VM_USB_HUB_SIZE 8
 477
 478 /* hw/usb/hdc-musb.c */
 479
 480 enum musb_irq_source_e {
 481     musb_irq_suspend = 0,
 482     musb_irq_resume,
 483     musb_irq_rst_babble,
 484     musb_irq_sof,
 485     musb_irq_connect,
 486     musb_irq_disconnect,
 487     musb_irq_vbus_request,
 488     musb_irq_vbus_error,
 489     musb_irq_rx,
 490     musb_irq_tx,
 491     musb_set_vbus,
 492     musb_set_session,
 493     /* Add new interrupts here */
 494     musb_irq_max, /* total number of interrupts defined */
 495 };
 496
 497 typedef struct MUSBState MUSBState;
 498
 499 extern CPUReadMemoryFunc * const musb_read[];
 500 extern CPUWriteMemoryFunc * const musb_write[];
 501
 502 MUSBState *musb_init(DeviceState *parent_device, int gpio_base);
 503 void musb_reset(MUSBState *s);
 504 uint32_t musb_core_intr_get(MUSBState *s);
 505 void musb_core_intr_clear(MUSBState *s, uint32_t mask);
 506 void musb_set_size(MUSBState *s, int epnum, int size, int is_tx);
 507
 508 /* usb-bus.c */
 509
 510 #define TYPE_USB_BUS "usb-bus"
 511 #define USB_BUS(obj) OBJECT_CHECK(USBBus, (obj), TYPE_USB_BUS)
 512
 513 struct USBBus {
 514     BusState qbus;
 515     USBBusOps *ops;
 516     int busnr;
 517     int nfree;
 518     int nused;
 519     QTAILQ_HEAD(, USBPort) free;
 520     QTAILQ_HEAD(, USBPort) used;
 521     QTAILQ_ENTRY(USBBus) next;
 522 };
 523
 524 struct USBBusOps {
 525     void (*register_companion)(USBBus *bus, USBPort *ports[],
 526                                uint32_t portcount, uint32_t firstport,
 527                                Error **errp);
 528     void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream);
 529 };
 530
 531 void usb_bus_new(USBBus *bus, size_t bus_size,
 532                  USBBusOps *ops, DeviceState *host);
 533 void usb_bus_release(USBBus *bus);
 534 USBBus *usb_bus_find(int busnr);
 535 void usb_legacy_register(const char *typename, const char *usbdevice_name,
 536                          USBDevice *(*usbdevice_init)(USBBus *bus,
 537                                                       const char *params));
 538 USBDevice *usb_create(USBBus *bus, const char *name);
 539 USBDevice *usb_create_simple(USBBus *bus, const char *name);
 540 USBDevice *usbdevice_create(const char *cmdline);
 541 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
 542                        USBPortOps *ops, int speedmask);
 543 void usb_register_companion(const char *masterbus, USBPort *ports[],
 544                             uint32_t portcount, uint32_t firstport,
 545                             void *opaque, USBPortOps *ops, int speedmask,
 546                             Error **errp);
 547 void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
 548 void usb_unregister_port(USBBus *bus, USBPort *port);
 549 void usb_claim_port(USBDevice *dev, Error **errp);
 550 void usb_release_port(USBDevice *dev);
 551 void usb_device_attach(USBDevice *dev, Error **errp);
 552 int usb_device_detach(USBDevice *dev);
 553 int usb_device_delete_addr(int busnr, int addr);
 554 void usb_check_attach(USBDevice *dev, Error **errp);
 555
 556 static inline USBBus *usb_bus_from_device(USBDevice *d)
 557 {
 558     return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
 559 }
 560
 561 extern const VMStateDescription vmstate_usb_device;
 562
 563 #define VMSTATE_USB_DEVICE(_field, _state) {                         \
 564     .name       = (stringify(_field)),                               \
 565     .size       = sizeof(USBDevice),                                 \
 566     .vmsd       = &vmstate_usb_device,                               \
 567     .flags      = VMS_STRUCT,                                        \
 568     .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
 569 }
 570
 571 USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr);
 572
 573 void usb_device_cancel_packet(USBDevice *dev, USBPacket *p);
 574
 575 void usb_device_handle_attach(USBDevice *dev);
 576
 577 void usb_device_handle_reset(USBDevice *dev);
 578
 579 void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
 580                                int val, int index, int length, uint8_t *data);
 581
 582 void usb_device_handle_data(USBDevice *dev, USBPacket *p);
 583
 584 void usb_device_set_interface(USBDevice *dev, int interface,
 585                               int alt_old, int alt_new);
 586
 587 void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
 588
 589 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
 590
 591 int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
 592                              int streams);
 593 void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
 594
 595 const char *usb_device_get_product_desc(USBDevice *dev);
 596
 597 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
 598
 599 int ehci_create_ich9_with_companions(PCIBus *bus, int slot);
 600
 601 /* quirks.c */
 602
 603 /* In bulk endpoints are streaming data sources (iow behave like isoc eps) */
 604 #define USB_QUIRK_BUFFER_BULK_IN        0x01
 605 /* Bulk pkts in FTDI format, need special handling when combining packets */
 606 #define USB_QUIRK_IS_FTDI               0x02
 607
 608 int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
 609                    uint8_t interface_class, uint8_t interface_subclass,
 610                    uint8_t interface_protocol);
 611
 612 #endif