xref: /openbmc/qemu/include/hw/usb.h (revision 8779fccb)
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 #define USB_REQ_SET_SEL                 0x30
139 #define USB_REQ_SET_ISOCH_DELAY         0x31
140 
141 #define USB_DEVICE_SELF_POWERED		0
142 #define USB_DEVICE_REMOTE_WAKEUP	1
143 
144 #define USB_DT_DEVICE			0x01
145 #define USB_DT_CONFIG			0x02
146 #define USB_DT_STRING			0x03
147 #define USB_DT_INTERFACE		0x04
148 #define USB_DT_ENDPOINT			0x05
149 #define USB_DT_DEVICE_QUALIFIER         0x06
150 #define USB_DT_OTHER_SPEED_CONFIG       0x07
151 #define USB_DT_DEBUG                    0x0A
152 #define USB_DT_INTERFACE_ASSOC          0x0B
153 #define USB_DT_BOS                      0x0F
154 #define USB_DT_DEVICE_CAPABILITY        0x10
155 #define USB_DT_CS_INTERFACE             0x24
156 #define USB_DT_CS_ENDPOINT              0x25
157 #define USB_DT_ENDPOINT_COMPANION       0x30
158 
159 #define USB_DEV_CAP_WIRELESS            0x01
160 #define USB_DEV_CAP_USB2_EXT            0x02
161 #define USB_DEV_CAP_SUPERSPEED          0x03
162 
163 #define USB_CFG_ATT_ONE              (1 << 7) /* should always be set */
164 #define USB_CFG_ATT_SELFPOWER        (1 << 6)
165 #define USB_CFG_ATT_WAKEUP           (1 << 5)
166 #define USB_CFG_ATT_BATTERY          (1 << 4)
167 
168 #define USB_ENDPOINT_XFER_CONTROL	0
169 #define USB_ENDPOINT_XFER_ISOC		1
170 #define USB_ENDPOINT_XFER_BULK		2
171 #define USB_ENDPOINT_XFER_INT		3
172 #define USB_ENDPOINT_XFER_INVALID     255
173 
174 #define USB_INTERFACE_INVALID         255
175 
176 typedef struct USBBus USBBus;
177 typedef struct USBBusOps USBBusOps;
178 typedef struct USBPort USBPort;
179 typedef struct USBDevice USBDevice;
180 typedef struct USBPacket USBPacket;
181 typedef struct USBCombinedPacket USBCombinedPacket;
182 typedef struct USBEndpoint USBEndpoint;
183 
184 typedef struct USBDesc USBDesc;
185 typedef struct USBDescID USBDescID;
186 typedef struct USBDescDevice USBDescDevice;
187 typedef struct USBDescConfig USBDescConfig;
188 typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
189 typedef struct USBDescIface USBDescIface;
190 typedef struct USBDescEndpoint USBDescEndpoint;
191 typedef struct USBDescOther USBDescOther;
192 typedef struct USBDescString USBDescString;
193 typedef struct USBDescMSOS USBDescMSOS;
194 
195 struct USBDescString {
196     uint8_t index;
197     char *str;
198     QLIST_ENTRY(USBDescString) next;
199 };
200 
201 #define USB_MAX_ENDPOINTS  15
202 #define USB_MAX_INTERFACES 16
203 
204 struct USBEndpoint {
205     uint8_t nr;
206     uint8_t pid;
207     uint8_t type;
208     uint8_t ifnum;
209     int max_packet_size;
210     int max_streams;
211     bool pipeline;
212     bool halted;
213     USBDevice *dev;
214     QTAILQ_HEAD(, USBPacket) queue;
215 };
216 
217 enum USBDeviceFlags {
218     USB_DEV_FLAG_FULL_PATH,
219     USB_DEV_FLAG_IS_HOST,
220     USB_DEV_FLAG_MSOS_DESC_ENABLE,
221     USB_DEV_FLAG_MSOS_DESC_IN_USE,
222 };
223 
224 /* definition of a USB device */
225 struct USBDevice {
226     DeviceState qdev;
227     USBPort *port;
228     char *port_path;
229     char *serial;
230     void *opaque;
231     uint32_t flags;
232 
233     /* Actual connected speed */
234     int speed;
235     /* Supported speeds, not in info because it may be variable (hostdevs) */
236     int speedmask;
237     uint8_t addr;
238     char product_desc[32];
239     int auto_attach;
240     bool attached;
241 
242     int32_t state;
243     uint8_t setup_buf[8];
244     uint8_t data_buf[4096];
245     int32_t remote_wakeup;
246     int32_t setup_state;
247     int32_t setup_len;
248     int32_t setup_index;
249 
250     USBEndpoint ep_ctl;
251     USBEndpoint ep_in[USB_MAX_ENDPOINTS];
252     USBEndpoint ep_out[USB_MAX_ENDPOINTS];
253 
254     QLIST_HEAD(, USBDescString) strings;
255     const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
256     const USBDescDevice *device;
257 
258     int configuration;
259     int ninterfaces;
260     int altsetting[USB_MAX_INTERFACES];
261     const USBDescConfig *config;
262     const USBDescIface  *ifaces[USB_MAX_INTERFACES];
263 };
264 
265 #define TYPE_USB_DEVICE "usb-device"
266 #define USB_DEVICE(obj) \
267      OBJECT_CHECK(USBDevice, (obj), TYPE_USB_DEVICE)
268 #define USB_DEVICE_CLASS(klass) \
269      OBJECT_CLASS_CHECK(USBDeviceClass, (klass), TYPE_USB_DEVICE)
270 #define USB_DEVICE_GET_CLASS(obj) \
271      OBJECT_GET_CLASS(USBDeviceClass, (obj), TYPE_USB_DEVICE)
272 
273 typedef void (*USBDeviceRealize)(USBDevice *dev, Error **errp);
274 typedef void (*USBDeviceUnrealize)(USBDevice *dev, Error **errp);
275 
276 typedef struct USBDeviceClass {
277     DeviceClass parent_class;
278 
279     USBDeviceRealize realize;
280     USBDeviceUnrealize unrealize;
281 
282     /*
283      * Walk (enabled) downstream ports, check for a matching device.
284      * Only hubs implement this.
285      */
286     USBDevice *(*find_device)(USBDevice *dev, uint8_t addr);
287 
288     /*
289      * Called when a packet is canceled.
290      */
291     void (*cancel_packet)(USBDevice *dev, USBPacket *p);
292 
293     /*
294      * Attach the device
295      */
296     void (*handle_attach)(USBDevice *dev);
297 
298     /*
299      * Reset the device
300      */
301     void (*handle_reset)(USBDevice *dev);
302 
303     /*
304      * Process control request.
305      * Called from handle_packet().
306      *
307      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
308      * then the number of bytes transferred is stored in p->actual_length
309      */
310     void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
311                            int index, int length, uint8_t *data);
312 
313     /*
314      * Process data transfers (both BULK and ISOC).
315      * Called from handle_packet().
316      *
317      * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
318      * then the number of bytes transferred is stored in p->actual_length
319      */
320     void (*handle_data)(USBDevice *dev, USBPacket *p);
321 
322     void (*set_interface)(USBDevice *dev, int interface,
323                           int alt_old, int alt_new);
324 
325     /*
326      * Called when the hcd is done queuing packets for an endpoint, only
327      * necessary for devices which can return USB_RET_ADD_TO_QUEUE.
328      */
329     void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep);
330 
331     /*
332      * Called by the hcd to let the device know the queue for an endpoint
333      * has been unlinked / stopped. Optional may be NULL.
334      */
335     void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
336 
337     /*
338      * Called by the hcd to alloc / free streams on a bulk endpoint.
339      * Optional may be NULL.
340      */
341     int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
342                          int streams);
343     void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
344 
345     const char *product_desc;
346     const USBDesc *usb_desc;
347     bool attached_settable;
348 } USBDeviceClass;
349 
350 typedef struct USBPortOps {
351     void (*attach)(USBPort *port);
352     void (*detach)(USBPort *port);
353     /*
354      * This gets called when a device downstream from the device attached to
355      * the port (iow attached through a hub) gets detached.
356      */
357     void (*child_detach)(USBPort *port, USBDevice *child);
358     void (*wakeup)(USBPort *port);
359     /*
360      * Note that port->dev will be different then the device from which
361      * the packet originated when a hub is involved.
362      */
363     void (*complete)(USBPort *port, USBPacket *p);
364 } USBPortOps;
365 
366 /* USB port on which a device can be connected */
367 struct USBPort {
368     USBDevice *dev;
369     int speedmask;
370     int hubcount;
371     char path[16];
372     USBPortOps *ops;
373     void *opaque;
374     int index; /* internal port index, may be used with the opaque */
375     QTAILQ_ENTRY(USBPort) next;
376 };
377 
378 typedef void USBCallback(USBPacket * packet, void *opaque);
379 
380 typedef enum USBPacketState {
381     USB_PACKET_UNDEFINED = 0,
382     USB_PACKET_SETUP,
383     USB_PACKET_QUEUED,
384     USB_PACKET_ASYNC,
385     USB_PACKET_COMPLETE,
386     USB_PACKET_CANCELED,
387 } USBPacketState;
388 
389 /* Structure used to hold information about an active USB packet.  */
390 struct USBPacket {
391     /* Data fields for use by the driver.  */
392     int pid;
393     uint64_t id;
394     USBEndpoint *ep;
395     unsigned int stream;
396     QEMUIOVector iov;
397     uint64_t parameter; /* control transfers */
398     bool short_not_ok;
399     bool int_req;
400     int status; /* USB_RET_* status code */
401     int actual_length; /* Number of bytes actually transferred */
402     /* Internal use by the USB layer.  */
403     USBPacketState state;
404     USBCombinedPacket *combined;
405     QTAILQ_ENTRY(USBPacket) queue;
406     QTAILQ_ENTRY(USBPacket) combined_entry;
407 };
408 
409 struct USBCombinedPacket {
410     USBPacket *first;
411     QTAILQ_HEAD(packets_head, USBPacket) packets;
412     QEMUIOVector iov;
413 };
414 
415 void usb_packet_init(USBPacket *p);
416 void usb_packet_set_state(USBPacket *p, USBPacketState state);
417 void usb_packet_check_state(USBPacket *p, USBPacketState expected);
418 void usb_packet_setup(USBPacket *p, int pid,
419                       USBEndpoint *ep, unsigned int stream,
420                       uint64_t id, bool short_not_ok, bool int_req);
421 void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
422 int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
423 void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl);
424 void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
425 void usb_packet_skip(USBPacket *p, size_t bytes);
426 size_t usb_packet_size(USBPacket *p);
427 void usb_packet_cleanup(USBPacket *p);
428 
429 static inline bool usb_packet_is_inflight(USBPacket *p)
430 {
431     return (p->state == USB_PACKET_QUEUED ||
432             p->state == USB_PACKET_ASYNC);
433 }
434 
435 USBDevice *usb_find_device(USBPort *port, uint8_t addr);
436 
437 void usb_handle_packet(USBDevice *dev, USBPacket *p);
438 void usb_packet_complete(USBDevice *dev, USBPacket *p);
439 void usb_packet_complete_one(USBDevice *dev, USBPacket *p);
440 void usb_cancel_packet(USBPacket * p);
441 
442 void usb_ep_init(USBDevice *dev);
443 void usb_ep_reset(USBDevice *dev);
444 void usb_ep_dump(USBDevice *dev);
445 struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep);
446 uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
447 void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
448 void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
449 void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
450                                 uint16_t raw);
451 void usb_ep_set_max_streams(USBDevice *dev, int pid, int ep, uint8_t raw);
452 void usb_ep_set_halted(USBDevice *dev, int pid, int ep, bool halted);
453 USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep,
454                                     uint64_t id);
455 
456 void usb_ep_combine_input_packets(USBEndpoint *ep);
457 void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p);
458 void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p);
459 
460 void usb_pick_speed(USBPort *port);
461 void usb_attach(USBPort *port);
462 void usb_detach(USBPort *port);
463 void usb_port_reset(USBPort *port);
464 void usb_device_reset(USBDevice *dev);
465 void usb_wakeup(USBEndpoint *ep, unsigned int stream);
466 void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
467 
468 /* usb-linux.c */
469 USBDevice *usb_host_device_open(USBBus *bus, const char *devname);
470 void hmp_info_usbhost(Monitor *mon, const QDict *qdict);
471 bool 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 /* hw/usb/hdc-musb.c */
478 
479 enum musb_irq_source_e {
480     musb_irq_suspend = 0,
481     musb_irq_resume,
482     musb_irq_rst_babble,
483     musb_irq_sof,
484     musb_irq_connect,
485     musb_irq_disconnect,
486     musb_irq_vbus_request,
487     musb_irq_vbus_error,
488     musb_irq_rx,
489     musb_irq_tx,
490     musb_set_vbus,
491     musb_set_session,
492     /* Add new interrupts here */
493     musb_irq_max, /* total number of interrupts defined */
494 };
495 
496 typedef struct MUSBState MUSBState;
497 
498 extern CPUReadMemoryFunc * const musb_read[];
499 extern CPUWriteMemoryFunc * const musb_write[];
500 
501 MUSBState *musb_init(DeviceState *parent_device, int gpio_base);
502 void musb_reset(MUSBState *s);
503 uint32_t musb_core_intr_get(MUSBState *s);
504 void musb_core_intr_clear(MUSBState *s, uint32_t mask);
505 void musb_set_size(MUSBState *s, int epnum, int size, int is_tx);
506 
507 /* usb-bus.c */
508 
509 #define TYPE_USB_BUS "usb-bus"
510 #define USB_BUS(obj) OBJECT_CHECK(USBBus, (obj), TYPE_USB_BUS)
511 
512 struct USBBus {
513     BusState qbus;
514     USBBusOps *ops;
515     int busnr;
516     int nfree;
517     int nused;
518     QTAILQ_HEAD(, USBPort) free;
519     QTAILQ_HEAD(, USBPort) used;
520     QTAILQ_ENTRY(USBBus) next;
521 };
522 
523 struct USBBusOps {
524     void (*register_companion)(USBBus *bus, USBPort *ports[],
525                                uint32_t portcount, uint32_t firstport,
526                                Error **errp);
527     void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep, unsigned int stream);
528 };
529 
530 void usb_bus_new(USBBus *bus, size_t bus_size,
531                  USBBusOps *ops, DeviceState *host);
532 void usb_bus_release(USBBus *bus);
533 USBBus *usb_bus_find(int busnr);
534 void usb_legacy_register(const char *typename, const char *usbdevice_name,
535                          USBDevice *(*usbdevice_init)(USBBus *bus,
536                                                       const char *params));
537 USBDevice *usb_create(USBBus *bus, const char *name);
538 USBDevice *usb_create_simple(USBBus *bus, const char *name);
539 USBDevice *usbdevice_create(const char *cmdline);
540 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
541                        USBPortOps *ops, int speedmask);
542 void usb_register_companion(const char *masterbus, USBPort *ports[],
543                             uint32_t portcount, uint32_t firstport,
544                             void *opaque, USBPortOps *ops, int speedmask,
545                             Error **errp);
546 void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
547 void usb_unregister_port(USBBus *bus, USBPort *port);
548 void usb_claim_port(USBDevice *dev, Error **errp);
549 void usb_release_port(USBDevice *dev);
550 void usb_device_attach(USBDevice *dev, Error **errp);
551 int usb_device_detach(USBDevice *dev);
552 int usb_device_delete_addr(int busnr, int addr);
553 void usb_check_attach(USBDevice *dev, Error **errp);
554 
555 static inline USBBus *usb_bus_from_device(USBDevice *d)
556 {
557     return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
558 }
559 
560 extern const VMStateDescription vmstate_usb_device;
561 
562 #define VMSTATE_USB_DEVICE(_field, _state) {                         \
563     .name       = (stringify(_field)),                               \
564     .size       = sizeof(USBDevice),                                 \
565     .vmsd       = &vmstate_usb_device,                               \
566     .flags      = VMS_STRUCT,                                        \
567     .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
568 }
569 
570 USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr);
571 
572 void usb_device_cancel_packet(USBDevice *dev, USBPacket *p);
573 
574 void usb_device_handle_attach(USBDevice *dev);
575 
576 void usb_device_handle_reset(USBDevice *dev);
577 
578 void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
579                                int val, int index, int length, uint8_t *data);
580 
581 void usb_device_handle_data(USBDevice *dev, USBPacket *p);
582 
583 void usb_device_set_interface(USBDevice *dev, int interface,
584                               int alt_old, int alt_new);
585 
586 void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
587 
588 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
589 
590 int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
591                              int streams);
592 void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
593 
594 const char *usb_device_get_product_desc(USBDevice *dev);
595 
596 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
597 
598 int ehci_create_ich9_with_companions(PCIBus *bus, int slot);
599 
600 /* quirks.c */
601 
602 /* In bulk endpoints are streaming data sources (iow behave like isoc eps) */
603 #define USB_QUIRK_BUFFER_BULK_IN	0x01
604 /* Bulk pkts in FTDI format, need special handling when combining packets */
605 #define USB_QUIRK_IS_FTDI		0x02
606 
607 int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
608                    uint8_t interface_class, uint8_t interface_subclass,
609                    uint8_t interface_protocol);
610 
611 #endif
612