jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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
33/* Constants related to the USB / PCI interaction */
34#define USB_SBRN 0x60 /* Serial Bus Release Number Register */
35#define USB_RELEASE_1 0x10 /* USB 1.0 */
36#define USB_RELEASE_2 0x20 /* USB 2.0 */
37#define USB_RELEASE_3 0x30 /* USB 3.0 */
38
39#define USB_TOKEN_SETUP 0x2d
40#define USB_TOKEN_IN 0x69 /* device -> host */
41#define USB_TOKEN_OUT 0xe1 /* host -> device */
42
43#define USB_RET_SUCCESS (0)
44#define USB_RET_NODEV (-1)
45#define USB_RET_NAK (-2)
46#define USB_RET_STALL (-3)
47#define USB_RET_BABBLE (-4)
48#define USB_RET_IOERROR (-5)
49#define USB_RET_ASYNC (-6)
50#define USB_RET_ADD_TO_QUEUE (-7)
51#define USB_RET_REMOVE_FROM_QUEUE (-8)
52
53#define USB_SPEED_LOW 0
54#define USB_SPEED_FULL 1
55#define USB_SPEED_HIGH 2
56#define USB_SPEED_SUPER 3
57
58#define USB_SPEED_MASK_LOW (1 << USB_SPEED_LOW)
59#define USB_SPEED_MASK_FULL (1 << USB_SPEED_FULL)
60#define USB_SPEED_MASK_HIGH (1 << USB_SPEED_HIGH)
61#define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER)
62
63#define USB_STATE_NOTATTACHED 0
64#define USB_STATE_ATTACHED 1
65//#define USB_STATE_POWERED 2
66#define USB_STATE_DEFAULT 3
67//#define USB_STATE_ADDRESS 4
68//#define USB_STATE_CONFIGURED 5
69#define USB_STATE_SUSPENDED 6
70
71#define USB_CLASS_AUDIO 1
72#define USB_CLASS_COMM 2
73#define USB_CLASS_HID 3
74#define USB_CLASS_PHYSICAL 5
75#define USB_CLASS_STILL_IMAGE 6
76#define USB_CLASS_PRINTER 7
77#define USB_CLASS_MASS_STORAGE 8
78#define USB_CLASS_HUB 9
79#define USB_CLASS_CDC_DATA 0x0a
80#define USB_CLASS_CSCID 0x0b
81#define USB_CLASS_CONTENT_SEC 0x0d
82#define USB_CLASS_APP_SPEC 0xfe
83#define USB_CLASS_VENDOR_SPEC 0xff
84
85#define USB_SUBCLASS_UNDEFINED 0
86#define USB_SUBCLASS_AUDIO_CONTROL 1
87#define USB_SUBCLASS_AUDIO_STREAMING 2
88#define USB_SUBCLASS_AUDIO_MIDISTREAMING 3
89
90#define USB_DIR_OUT 0
91#define USB_DIR_IN 0x80
92
93#define USB_TYPE_MASK (0x03 << 5)
94#define USB_TYPE_STANDARD (0x00 << 5)
95#define USB_TYPE_CLASS (0x01 << 5)
96#define USB_TYPE_VENDOR (0x02 << 5)
97#define USB_TYPE_RESERVED (0x03 << 5)
98
99#define USB_RECIP_MASK 0x1f
100#define USB_RECIP_DEVICE 0x00
101#define USB_RECIP_INTERFACE 0x01
102#define USB_RECIP_ENDPOINT 0x02
103#define USB_RECIP_OTHER 0x03
104
105#define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
106#define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
107#define VendorDeviceRequest ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
108#define VendorDeviceOutRequest \
109 ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
110
111#define InterfaceRequest \
112 ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
113#define InterfaceOutRequest \
114 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
115#define ClassInterfaceRequest \
116 ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
117#define ClassInterfaceOutRequest \
118 ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
119#define VendorInterfaceRequest \
120 ((USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
121#define VendorInterfaceOutRequest \
122 ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE)<<8)
123
124#define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
125#define EndpointOutRequest \
126 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
127
128#define USB_REQ_GET_STATUS 0x00
129#define USB_REQ_CLEAR_FEATURE 0x01
130#define USB_REQ_SET_FEATURE 0x03
131#define USB_REQ_SET_ADDRESS 0x05
132#define USB_REQ_GET_DESCRIPTOR 0x06
133#define USB_REQ_SET_DESCRIPTOR 0x07
134#define USB_REQ_GET_CONFIGURATION 0x08
135#define USB_REQ_SET_CONFIGURATION 0x09
136#define USB_REQ_GET_INTERFACE 0x0A
137#define USB_REQ_SET_INTERFACE 0x0B
138#define USB_REQ_SYNCH_FRAME 0x0C
139#define USB_REQ_SET_SEL 0x30
140#define USB_REQ_SET_ISOCH_DELAY 0x31
141
142#define USB_DEVICE_SELF_POWERED 0
143#define USB_DEVICE_REMOTE_WAKEUP 1
144
145#define USB_DT_DEVICE 0x01
146#define USB_DT_CONFIG 0x02
147#define USB_DT_STRING 0x03
148#define USB_DT_INTERFACE 0x04
149#define USB_DT_ENDPOINT 0x05
150#define USB_DT_DEVICE_QUALIFIER 0x06
151#define USB_DT_OTHER_SPEED_CONFIG 0x07
152#define USB_DT_DEBUG 0x0A
153#define USB_DT_INTERFACE_ASSOC 0x0B
154#define USB_DT_BOS 0x0F
155#define USB_DT_DEVICE_CAPABILITY 0x10
156#define USB_DT_CS_INTERFACE 0x24
157#define USB_DT_CS_ENDPOINT 0x25
158#define USB_DT_ENDPOINT_COMPANION 0x30
159
160#define USB_DEV_CAP_WIRELESS 0x01
161#define USB_DEV_CAP_USB2_EXT 0x02
162#define USB_DEV_CAP_SUPERSPEED 0x03
163
164#define USB_CFG_ATT_ONE (1 << 7) /* should always be set */
165#define USB_CFG_ATT_SELFPOWER (1 << 6)
166#define USB_CFG_ATT_WAKEUP (1 << 5)
167#define USB_CFG_ATT_BATTERY (1 << 4)
168
169#define USB_ENDPOINT_XFER_CONTROL 0
170#define USB_ENDPOINT_XFER_ISOC 1
171#define USB_ENDPOINT_XFER_BULK 2
172#define USB_ENDPOINT_XFER_INT 3
173#define USB_ENDPOINT_XFER_INVALID 255
174
175#define USB_INTERFACE_INVALID 255
176
177typedef struct USBBus USBBus;
178typedef struct USBBusOps USBBusOps;
179typedef struct USBPort USBPort;
180typedef struct USBDevice USBDevice;
181typedef struct USBPacket USBPacket;
182typedef struct USBCombinedPacket USBCombinedPacket;
183typedef struct USBEndpoint USBEndpoint;
184
185typedef struct USBDesc USBDesc;
186typedef struct USBDescID USBDescID;
187typedef struct USBDescDevice USBDescDevice;
188typedef struct USBDescConfig USBDescConfig;
189typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
190typedef struct USBDescIface USBDescIface;
191typedef struct USBDescEndpoint USBDescEndpoint;
192typedef struct USBDescOther USBDescOther;
193typedef struct USBDescString USBDescString;
194typedef struct USBDescMSOS USBDescMSOS;
195
196struct 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
205struct 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
218enum 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 */
226struct USBDevice {
227 DeviceState qdev;
228 USBPort *port;
229 char *port_path;
230 char *serial;
231 void *opaque;
232 uint32_t flags;
233
234 /* Actual connected speed */
235 int speed;
236 /* Supported speeds, not in info because it may be variable (hostdevs) */
237 int speedmask;
238 uint8_t addr;
239 char product_desc[32];
240 int auto_attach;
241 bool attached;
242
243 int32_t state;
244 uint8_t setup_buf[8];
245 uint8_t data_buf[4096];
246 int32_t remote_wakeup;
247 int32_t setup_state;
248 int32_t setup_len;
249 int32_t setup_index;
250
251 USBEndpoint ep_ctl;
252 USBEndpoint ep_in[USB_MAX_ENDPOINTS];
253 USBEndpoint ep_out[USB_MAX_ENDPOINTS];
254
255 QLIST_HEAD(, USBDescString) strings;
256 const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
257 const USBDescDevice *device;
258
259 int configuration;
260 int ninterfaces;
261 int altsetting[USB_MAX_INTERFACES];
262 const USBDescConfig *config;
263 const USBDescIface *ifaces[USB_MAX_INTERFACES];
264};
265
266#define TYPE_USB_DEVICE "usb-device"
267#define USB_DEVICE(obj) \
268 OBJECT_CHECK(USBDevice, (obj), TYPE_USB_DEVICE)
269#define USB_DEVICE_CLASS(klass) \
270 OBJECT_CLASS_CHECK(USBDeviceClass, (klass), TYPE_USB_DEVICE)
271#define USB_DEVICE_GET_CLASS(obj) \
272 OBJECT_GET_CLASS(USBDeviceClass, (obj), TYPE_USB_DEVICE)
273
274typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
275typedef void (*USBDeviceUnrealize)(USBDevice *dev);
276
277typedef struct USBDeviceClass {
278 DeviceClass parent_class;
279
280 USBDeviceRealize realize;
281 USBDeviceUnrealize unrealize;
282
283 /*
284 * Walk (enabled) downstream ports, check for a matching device.
285 * Only hubs implement this.
286 */
287 USBDevice *(*find_device)(USBDevice *dev, uint8_t addr);
288
289 /*
290 * Called when a packet is canceled.
291 */
292 void (*cancel_packet)(USBDevice *dev, USBPacket *p);
293
294 /*
295 * Attach the device
296 */
297 void (*handle_attach)(USBDevice *dev);
298
299 /*
300 * Reset the device
301 */
302 void (*handle_reset)(USBDevice *dev);
303
304 /*
305 * Process control request.
306 * Called from handle_packet().
307 *
308 * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
309 * then the number of bytes transferred is stored in p->actual_length
310 */
311 void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
312 int index, int length, uint8_t *data);
313
314 /*
315 * Process data transfers (both BULK and ISOC).
316 * Called from handle_packet().
317 *
318 * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
319 * then the number of bytes transferred is stored in p->actual_length
320 */
321 void (*handle_data)(USBDevice *dev, USBPacket *p);
322
323 void (*set_interface)(USBDevice *dev, int interface,
324 int alt_old, int alt_new);
325
326 /*
327 * Called when the hcd is done queuing packets for an endpoint, only
328 * necessary for devices which can return USB_RET_ADD_TO_QUEUE.
329 */
330 void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep);
331
332 /*
333 * Called by the hcd to let the device know the queue for an endpoint
334 * has been unlinked / stopped. Optional may be NULL.
335 */
336 void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
337
338 /*
339 * Called by the hcd to alloc / free streams on a bulk endpoint.
340 * Optional may be NULL.
341 */
342 int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
343 int streams);
344 void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
345
346 const char *product_desc;
347 const USBDesc *usb_desc;
348 bool attached_settable;
349} USBDeviceClass;
350
351typedef struct USBPortOps {
352 void (*attach)(USBPort *port);
353 void (*detach)(USBPort *port);
354 /*
355 * This gets called when a device downstream from the device attached to
356 * the port (iow attached through a hub) gets detached.
357 */
358 void (*child_detach)(USBPort *port, USBDevice *child);
359 void (*wakeup)(USBPort *port);
360 /*
361 * Note that port->dev will be different then the device from which
362 * the packet originated when a hub is involved.
363 */
364 void (*complete)(USBPort *port, USBPacket *p);
365} USBPortOps;
366
367/* USB port on which a device can be connected */
368struct USBPort {
369 USBDevice *dev;
370 int speedmask;
371 int hubcount;
372 char path[16];
373 USBPortOps *ops;
374 void *opaque;
375 int index; /* internal port index, may be used with the opaque */
376 QTAILQ_ENTRY(USBPort) next;
377};
378
379typedef void USBCallback(USBPacket * packet, void *opaque);
380
381typedef enum USBPacketState {
382 USB_PACKET_UNDEFINED = 0,
383 USB_PACKET_SETUP,
384 USB_PACKET_QUEUED,
385 USB_PACKET_ASYNC,
386 USB_PACKET_COMPLETE,
387 USB_PACKET_CANCELED,
388} USBPacketState;
389
390/* Structure used to hold information about an active USB packet. */
391struct USBPacket {
392 /* Data fields for use by the driver. */
393 int pid;
394 uint64_t id;
395 USBEndpoint *ep;
396 unsigned int stream;
397 QEMUIOVector iov;
398 uint64_t parameter; /* control transfers */
399 bool short_not_ok;
400 bool int_req;
401 int status; /* USB_RET_* status code */
402 int actual_length; /* Number of bytes actually transferred */
403 /* Internal use by the USB layer. */
404 USBPacketState state;
405 USBCombinedPacket *combined;
406 QTAILQ_ENTRY(USBPacket) queue;
407 QTAILQ_ENTRY(USBPacket) combined_entry;
408};
409
410struct USBCombinedPacket {
411 USBPacket *first;
412 QTAILQ_HEAD(, USBPacket) packets;
413 QEMUIOVector iov;
414};
415
416void usb_packet_init(USBPacket *p);
417void usb_packet_set_state(USBPacket *p, USBPacketState state);
418void usb_packet_check_state(USBPacket *p, USBPacketState expected);
419void usb_packet_setup(USBPacket *p, int pid,
420 USBEndpoint *ep, unsigned int stream,
421 uint64_t id, bool short_not_ok, bool int_req);
422void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
423int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
424void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl);
425void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
426void usb_packet_skip(USBPacket *p, size_t bytes);
427size_t usb_packet_size(USBPacket *p);
428void usb_packet_cleanup(USBPacket *p);
429
430static inline bool usb_packet_is_inflight(USBPacket *p)
431{
432 return (p->state == USB_PACKET_QUEUED ||
433 p->state == USB_PACKET_ASYNC);
434}
435
436USBDevice *usb_find_device(USBPort *port, uint8_t addr);
437
438void usb_handle_packet(USBDevice *dev, USBPacket *p);
439void usb_packet_complete(USBDevice *dev, USBPacket *p);
440void usb_packet_complete_one(USBDevice *dev, USBPacket *p);
441void usb_cancel_packet(USBPacket * p);
442
443void usb_ep_init(USBDevice *dev);
444void usb_ep_reset(USBDevice *dev);
445void usb_ep_dump(USBDevice *dev);
446struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep);
447uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
448void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
449void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
450void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
451 uint16_t raw);
452void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw);
453void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted);
454USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep,
455 uint64_t id);
456
457void usb_ep_combine_input_packets(USBEndpoint *ep);
458void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p);
459void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p);
460
461void usb_pick_speed(USBPort *port);
462void usb_attach(USBPort *port);
463void usb_detach(USBPort *port);
464void usb_port_reset(USBPort *port);
465void usb_device_reset(USBDevice *dev);
466void usb_wakeup(USBEndpoint *ep, unsigned int stream);
467void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
468
469/* usb-linux.c */
470void hmp_info_usbhost(Monitor *mon, const QDict *qdict);
471bool usb_host_dev_is_scsi_storage(USBDevice *usbdev);
472
473/* usb ports of the VM */
474
475#define VM_USB_HUB_SIZE 8
476
477/* usb-bus.c */
478
479#define TYPE_USB_BUS "usb-bus"
480#define USB_BUS(obj) OBJECT_CHECK(USBBus, (obj), TYPE_USB_BUS)
481
482struct USBBus {
483 BusState qbus;
484 USBBusOps *ops;
485 int busnr;
486 int nfree;
487 int nused;
488 QTAILQ_HEAD(, USBPort) free;
489 QTAILQ_HEAD(, USBPort) used;
490 QTAILQ_ENTRY(USBBus) next;
491};
492
493struct USBBusOps {
494 void (*register_companion)(USBBus *bus, USBPort *ports[],
495 uint32_t portcount, uint32_t firstport,
496 Error **errp);
497 void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream);
498};
499
500void usb_bus_new(USBBus *bus, size_t bus_size,
501 USBBusOps *ops, DeviceState *host);
502void usb_bus_release(USBBus *bus);
503USBBus *usb_bus_find(int busnr);
504void usb_legacy_register(const char *typename, const char *usbdevice_name,
505 USBDevice *(*usbdevice_init)(const char *params));
506USBDevice *usb_new(const char *name);
507bool usb_realize_and_unref(USBDevice *dev, USBBus *bus, Error **errp);
508USBDevice *usb_create_simple(USBBus *bus, const char *name);
509USBDevice *usbdevice_create(const char *cmdline);
510void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
511 USBPortOps *ops, int speedmask);
512void usb_register_companion(const char *masterbus, USBPort *ports[],
513 uint32_t portcount, uint32_t firstport,
514 void *opaque, USBPortOps *ops, int speedmask,
515 Error **errp);
516void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
517void usb_unregister_port(USBBus *bus, USBPort *port);
518void usb_claim_port(USBDevice *dev, Error **errp);
519void usb_release_port(USBDevice *dev);
520void usb_device_attach(USBDevice *dev, Error **errp);
521int usb_device_detach(USBDevice *dev);
522void usb_check_attach(USBDevice *dev, Error **errp);
523
524static inline USBBus *usb_bus_from_device(USBDevice *d)
525{
526 return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
527}
528
529extern const VMStateDescription vmstate_usb_device;
530
531#define VMSTATE_USB_DEVICE(_field, _state) { \
532 .name = (stringify(_field)), \
533 .size = sizeof(USBDevice), \
534 .vmsd = &vmstate_usb_device, \
535 .flags = VMS_STRUCT, \
536 .offset = vmstate_offset_value(_state, _field, USBDevice), \
537}
538
539USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr);
540
541void usb_device_cancel_packet(USBDevice *dev, USBPacket *p);
542
543void usb_device_handle_attach(USBDevice *dev);
544
545void usb_device_handle_reset(USBDevice *dev);
546
547void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
548 int val, int index, int length, uint8_t *data);
549
550void usb_device_handle_data(USBDevice *dev, USBPacket *p);
551
552void usb_device_set_interface(USBDevice *dev, int interface,
553 int alt_old, int alt_new);
554
555void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
556
557void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
558
559int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
560 int streams);
561void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
562
563const char *usb_device_get_product_desc(USBDevice *dev);
564
565const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
566
567/* quirks.c */
568
569/* In bulk endpoints are streaming data sources (iow behave like isoc eps) */
570#define USB_QUIRK_BUFFER_BULK_IN 0x01
571/* Bulk pkts in FTDI format, need special handling when combining packets */
572#define USB_QUIRK_IS_FTDI 0x02
573
574int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
575 uint8_t interface_class, uint8_t interface_subclass,
576 uint8_t interface_protocol);
577
578#endif