virtio-net: multiqueue support
[qemu/kevin.git] / hw / usb.h
blobbc42639b167aed356c37eaa4f069f416ea5b61c1
1 #ifndef QEMU_USB_H
2 #define QEMU_USB_H
4 /*
5 * QEMU USB API
7 * Copyright (c) 2005 Fabrice Bellard
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:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
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.
28 #include "qdev.h"
29 #include "qemu/queue.h"
31 /* Constants related to the USB / PCI interaction */
32 #define USB_SBRN 0x60 /* Serial Bus Release Number Register */
33 #define USB_RELEASE_1 0x10 /* USB 1.0 */
34 #define USB_RELEASE_2 0x20 /* USB 2.0 */
35 #define USB_RELEASE_3 0x30 /* USB 3.0 */
37 #define USB_TOKEN_SETUP 0x2d
38 #define USB_TOKEN_IN 0x69 /* device -> host */
39 #define USB_TOKEN_OUT 0xe1 /* host -> device */
41 #define USB_RET_SUCCESS (0)
42 #define USB_RET_NODEV (-1)
43 #define USB_RET_NAK (-2)
44 #define USB_RET_STALL (-3)
45 #define USB_RET_BABBLE (-4)
46 #define USB_RET_IOERROR (-5)
47 #define USB_RET_ASYNC (-6)
48 #define USB_RET_ADD_TO_QUEUE (-7)
49 #define USB_RET_REMOVE_FROM_QUEUE (-8)
51 #define USB_SPEED_LOW 0
52 #define USB_SPEED_FULL 1
53 #define USB_SPEED_HIGH 2
54 #define USB_SPEED_SUPER 3
56 #define USB_SPEED_MASK_LOW (1 << USB_SPEED_LOW)
57 #define USB_SPEED_MASK_FULL (1 << USB_SPEED_FULL)
58 #define USB_SPEED_MASK_HIGH (1 << USB_SPEED_HIGH)
59 #define USB_SPEED_MASK_SUPER (1 << USB_SPEED_SUPER)
61 #define USB_STATE_NOTATTACHED 0
62 #define USB_STATE_ATTACHED 1
63 //#define USB_STATE_POWERED 2
64 #define USB_STATE_DEFAULT 3
65 //#define USB_STATE_ADDRESS 4
66 //#define USB_STATE_CONFIGURED 5
67 #define USB_STATE_SUSPENDED 6
69 #define USB_CLASS_AUDIO 1
70 #define USB_CLASS_COMM 2
71 #define USB_CLASS_HID 3
72 #define USB_CLASS_PHYSICAL 5
73 #define USB_CLASS_STILL_IMAGE 6
74 #define USB_CLASS_PRINTER 7
75 #define USB_CLASS_MASS_STORAGE 8
76 #define USB_CLASS_HUB 9
77 #define USB_CLASS_CDC_DATA 0x0a
78 #define USB_CLASS_CSCID 0x0b
79 #define USB_CLASS_CONTENT_SEC 0x0d
80 #define USB_CLASS_APP_SPEC 0xfe
81 #define USB_CLASS_VENDOR_SPEC 0xff
83 #define USB_SUBCLASS_UNDEFINED 0
84 #define USB_SUBCLASS_AUDIO_CONTROL 1
85 #define USB_SUBCLASS_AUDIO_STREAMING 2
86 #define USB_SUBCLASS_AUDIO_MIDISTREAMING 3
88 #define USB_DIR_OUT 0
89 #define USB_DIR_IN 0x80
91 #define USB_TYPE_MASK (0x03 << 5)
92 #define USB_TYPE_STANDARD (0x00 << 5)
93 #define USB_TYPE_CLASS (0x01 << 5)
94 #define USB_TYPE_VENDOR (0x02 << 5)
95 #define USB_TYPE_RESERVED (0x03 << 5)
97 #define USB_RECIP_MASK 0x1f
98 #define USB_RECIP_DEVICE 0x00
99 #define USB_RECIP_INTERFACE 0x01
100 #define USB_RECIP_ENDPOINT 0x02
101 #define USB_RECIP_OTHER 0x03
103 #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
104 #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
105 #define InterfaceRequest \
106 ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
107 #define InterfaceOutRequest \
108 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
109 #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
110 #define EndpointOutRequest \
111 ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
112 #define ClassInterfaceRequest \
113 ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
114 #define ClassInterfaceOutRequest \
115 ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
117 #define USB_REQ_GET_STATUS 0x00
118 #define USB_REQ_CLEAR_FEATURE 0x01
119 #define USB_REQ_SET_FEATURE 0x03
120 #define USB_REQ_SET_ADDRESS 0x05
121 #define USB_REQ_GET_DESCRIPTOR 0x06
122 #define USB_REQ_SET_DESCRIPTOR 0x07
123 #define USB_REQ_GET_CONFIGURATION 0x08
124 #define USB_REQ_SET_CONFIGURATION 0x09
125 #define USB_REQ_GET_INTERFACE 0x0A
126 #define USB_REQ_SET_INTERFACE 0x0B
127 #define USB_REQ_SYNCH_FRAME 0x0C
129 #define USB_DEVICE_SELF_POWERED 0
130 #define USB_DEVICE_REMOTE_WAKEUP 1
132 #define USB_DT_DEVICE 0x01
133 #define USB_DT_CONFIG 0x02
134 #define USB_DT_STRING 0x03
135 #define USB_DT_INTERFACE 0x04
136 #define USB_DT_ENDPOINT 0x05
137 #define USB_DT_DEVICE_QUALIFIER 0x06
138 #define USB_DT_OTHER_SPEED_CONFIG 0x07
139 #define USB_DT_DEBUG 0x0A
140 #define USB_DT_INTERFACE_ASSOC 0x0B
141 #define USB_DT_BOS 0x0F
142 #define USB_DT_DEVICE_CAPABILITY 0x10
143 #define USB_DT_CS_INTERFACE 0x24
144 #define USB_DT_CS_ENDPOINT 0x25
145 #define USB_DT_ENDPOINT_COMPANION 0x30
147 #define USB_DEV_CAP_WIRELESS 0x01
148 #define USB_DEV_CAP_USB2_EXT 0x02
149 #define USB_DEV_CAP_SUPERSPEED 0x03
151 #define USB_ENDPOINT_XFER_CONTROL 0
152 #define USB_ENDPOINT_XFER_ISOC 1
153 #define USB_ENDPOINT_XFER_BULK 2
154 #define USB_ENDPOINT_XFER_INT 3
155 #define USB_ENDPOINT_XFER_INVALID 255
157 #define USB_INTERFACE_INVALID 255
159 typedef struct USBBus USBBus;
160 typedef struct USBBusOps USBBusOps;
161 typedef struct USBPort USBPort;
162 typedef struct USBDevice USBDevice;
163 typedef struct USBPacket USBPacket;
164 typedef struct USBCombinedPacket USBCombinedPacket;
165 typedef struct USBEndpoint USBEndpoint;
167 typedef struct USBDesc USBDesc;
168 typedef struct USBDescID USBDescID;
169 typedef struct USBDescDevice USBDescDevice;
170 typedef struct USBDescConfig USBDescConfig;
171 typedef struct USBDescIfaceAssoc USBDescIfaceAssoc;
172 typedef struct USBDescIface USBDescIface;
173 typedef struct USBDescEndpoint USBDescEndpoint;
174 typedef struct USBDescOther USBDescOther;
175 typedef struct USBDescString USBDescString;
177 struct USBDescString {
178 uint8_t index;
179 char *str;
180 QLIST_ENTRY(USBDescString) next;
183 #define USB_MAX_ENDPOINTS 15
184 #define USB_MAX_INTERFACES 16
186 struct USBEndpoint {
187 uint8_t nr;
188 uint8_t pid;
189 uint8_t type;
190 uint8_t ifnum;
191 int max_packet_size;
192 bool pipeline;
193 bool halted;
194 USBDevice *dev;
195 QTAILQ_HEAD(, USBPacket) queue;
198 enum USBDeviceFlags {
199 USB_DEV_FLAG_FULL_PATH,
200 USB_DEV_FLAG_IS_HOST,
203 /* definition of a USB device */
204 struct USBDevice {
205 DeviceState qdev;
206 USBPort *port;
207 char *port_path;
208 void *opaque;
209 uint32_t flags;
211 /* Actual connected speed */
212 int speed;
213 /* Supported speeds, not in info because it may be variable (hostdevs) */
214 int speedmask;
215 uint8_t addr;
216 char product_desc[32];
217 int auto_attach;
218 int attached;
220 int32_t state;
221 uint8_t setup_buf[8];
222 uint8_t data_buf[4096];
223 int32_t remote_wakeup;
224 int32_t setup_state;
225 int32_t setup_len;
226 int32_t setup_index;
228 USBEndpoint ep_ctl;
229 USBEndpoint ep_in[USB_MAX_ENDPOINTS];
230 USBEndpoint ep_out[USB_MAX_ENDPOINTS];
232 QLIST_HEAD(, USBDescString) strings;
233 const USBDesc *usb_desc; /* Overrides class usb_desc if not NULL */
234 const USBDescDevice *device;
236 int configuration;
237 int ninterfaces;
238 int altsetting[USB_MAX_INTERFACES];
239 const USBDescConfig *config;
240 const USBDescIface *ifaces[USB_MAX_INTERFACES];
243 #define TYPE_USB_DEVICE "usb-device"
244 #define USB_DEVICE(obj) \
245 OBJECT_CHECK(USBDevice, (obj), TYPE_USB_DEVICE)
246 #define USB_DEVICE_CLASS(klass) \
247 OBJECT_CLASS_CHECK(USBDeviceClass, (klass), TYPE_USB_DEVICE)
248 #define USB_DEVICE_GET_CLASS(obj) \
249 OBJECT_GET_CLASS(USBDeviceClass, (obj), TYPE_USB_DEVICE)
251 typedef struct USBDeviceClass {
252 DeviceClass parent_class;
254 int (*init)(USBDevice *dev);
257 * Walk (enabled) downstream ports, check for a matching device.
258 * Only hubs implement this.
260 USBDevice *(*find_device)(USBDevice *dev, uint8_t addr);
263 * Called when a packet is canceled.
265 void (*cancel_packet)(USBDevice *dev, USBPacket *p);
268 * Called when device is destroyed.
270 void (*handle_destroy)(USBDevice *dev);
273 * Attach the device
275 void (*handle_attach)(USBDevice *dev);
278 * Reset the device
280 void (*handle_reset)(USBDevice *dev);
283 * Process control request.
284 * Called from handle_packet().
286 * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
287 * then the number of bytes transferred is stored in p->actual_length
289 void (*handle_control)(USBDevice *dev, USBPacket *p, int request, int value,
290 int index, int length, uint8_t *data);
293 * Process data transfers (both BULK and ISOC).
294 * Called from handle_packet().
296 * Status gets stored in p->status, and if p->status == USB_RET_SUCCESS
297 * then the number of bytes transferred is stored in p->actual_length
299 void (*handle_data)(USBDevice *dev, USBPacket *p);
301 void (*set_interface)(USBDevice *dev, int interface,
302 int alt_old, int alt_new);
305 * Called when the hcd is done queuing packets for an endpoint, only
306 * necessary for devices which can return USB_RET_ADD_TO_QUEUE.
308 void (*flush_ep_queue)(USBDevice *dev, USBEndpoint *ep);
311 * Called by the hcd to let the device know the queue for an endpoint
312 * has been unlinked / stopped. Optional may be NULL.
314 void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
316 const char *product_desc;
317 const USBDesc *usb_desc;
318 } USBDeviceClass;
320 typedef struct USBPortOps {
321 void (*attach)(USBPort *port);
322 void (*detach)(USBPort *port);
324 * This gets called when a device downstream from the device attached to
325 * the port (iow attached through a hub) gets detached.
327 void (*child_detach)(USBPort *port, USBDevice *child);
328 void (*wakeup)(USBPort *port);
330 * Note that port->dev will be different then the device from which
331 * the packet originated when a hub is involved.
333 void (*complete)(USBPort *port, USBPacket *p);
334 } USBPortOps;
336 /* USB port on which a device can be connected */
337 struct USBPort {
338 USBDevice *dev;
339 int speedmask;
340 char path[16];
341 USBPortOps *ops;
342 void *opaque;
343 int index; /* internal port index, may be used with the opaque */
344 QTAILQ_ENTRY(USBPort) next;
347 typedef void USBCallback(USBPacket * packet, void *opaque);
349 typedef enum USBPacketState {
350 USB_PACKET_UNDEFINED = 0,
351 USB_PACKET_SETUP,
352 USB_PACKET_QUEUED,
353 USB_PACKET_ASYNC,
354 USB_PACKET_COMPLETE,
355 USB_PACKET_CANCELED,
356 } USBPacketState;
358 /* Structure used to hold information about an active USB packet. */
359 struct USBPacket {
360 /* Data fields for use by the driver. */
361 int pid;
362 uint64_t id;
363 USBEndpoint *ep;
364 QEMUIOVector iov;
365 uint64_t parameter; /* control transfers */
366 bool short_not_ok;
367 bool int_req;
368 int status; /* USB_RET_* status code */
369 int actual_length; /* Number of bytes actually transferred */
370 /* Internal use by the USB layer. */
371 USBPacketState state;
372 USBCombinedPacket *combined;
373 QTAILQ_ENTRY(USBPacket) queue;
374 QTAILQ_ENTRY(USBPacket) combined_entry;
377 struct USBCombinedPacket {
378 USBPacket *first;
379 QTAILQ_HEAD(packets_head, USBPacket) packets;
380 QEMUIOVector iov;
383 void usb_packet_init(USBPacket *p);
384 void usb_packet_set_state(USBPacket *p, USBPacketState state);
385 void usb_packet_check_state(USBPacket *p, USBPacketState expected);
386 void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep, uint64_t id,
387 bool short_not_ok, bool int_req);
388 void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
389 int usb_packet_map(USBPacket *p, QEMUSGList *sgl);
390 void usb_packet_unmap(USBPacket *p, QEMUSGList *sgl);
391 void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes);
392 void usb_packet_skip(USBPacket *p, size_t bytes);
393 void usb_packet_cleanup(USBPacket *p);
395 static inline bool usb_packet_is_inflight(USBPacket *p)
397 return (p->state == USB_PACKET_QUEUED ||
398 p->state == USB_PACKET_ASYNC);
401 USBDevice *usb_find_device(USBPort *port, uint8_t addr);
403 void usb_handle_packet(USBDevice *dev, USBPacket *p);
404 void usb_packet_complete(USBDevice *dev, USBPacket *p);
405 void usb_packet_complete_one(USBDevice *dev, USBPacket *p);
406 void usb_cancel_packet(USBPacket * p);
408 void usb_ep_init(USBDevice *dev);
409 void usb_ep_reset(USBDevice *dev);
410 void usb_ep_dump(USBDevice *dev);
411 struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep);
412 uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep);
413 uint8_t usb_ep_get_ifnum(USBDevice *dev, int pid, int ep);
414 void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type);
415 void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
416 void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
417 uint16_t raw);
418 int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep);
419 void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled);
420 USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep,
421 uint64_t id);
423 void usb_ep_combine_input_packets(USBEndpoint *ep);
424 void usb_combined_input_packet_complete(USBDevice *dev, USBPacket *p);
425 void usb_combined_packet_cancel(USBDevice *dev, USBPacket *p);
427 void usb_attach(USBPort *port);
428 void usb_detach(USBPort *port);
429 void usb_port_reset(USBPort *port);
430 void usb_device_reset(USBDevice *dev);
431 void usb_wakeup(USBEndpoint *ep);
432 void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
433 int set_usb_string(uint8_t *buf, const char *str);
435 /* usb-linux.c */
436 USBDevice *usb_host_device_open(USBBus *bus, const char *devname);
437 int usb_host_device_close(const char *devname);
438 void usb_host_info(Monitor *mon, const QDict *qdict);
440 /* usb-bt.c */
441 USBDevice *usb_bt_init(USBBus *bus, HCIInfo *hci);
443 /* usb ports of the VM */
445 #define VM_USB_HUB_SIZE 8
447 /* usb-musb.c */
448 enum musb_irq_source_e {
449 musb_irq_suspend = 0,
450 musb_irq_resume,
451 musb_irq_rst_babble,
452 musb_irq_sof,
453 musb_irq_connect,
454 musb_irq_disconnect,
455 musb_irq_vbus_request,
456 musb_irq_vbus_error,
457 musb_irq_rx,
458 musb_irq_tx,
459 musb_set_vbus,
460 musb_set_session,
461 /* Add new interrupts here */
462 musb_irq_max, /* total number of interrupts defined */
465 typedef struct MUSBState MUSBState;
466 MUSBState *musb_init(DeviceState *parent_device, int gpio_base);
467 void musb_reset(MUSBState *s);
468 uint32_t musb_core_intr_get(MUSBState *s);
469 void musb_core_intr_clear(MUSBState *s, uint32_t mask);
470 void musb_set_size(MUSBState *s, int epnum, int size, int is_tx);
472 /* usb-bus.c */
474 #define TYPE_USB_BUS "usb-bus"
475 #define USB_BUS(obj) OBJECT_CHECK(USBBus, (obj), TYPE_USB_BUS)
477 struct USBBus {
478 BusState qbus;
479 USBBusOps *ops;
480 int busnr;
481 int nfree;
482 int nused;
483 QTAILQ_HEAD(, USBPort) free;
484 QTAILQ_HEAD(, USBPort) used;
485 QTAILQ_ENTRY(USBBus) next;
488 struct USBBusOps {
489 int (*register_companion)(USBBus *bus, USBPort *ports[],
490 uint32_t portcount, uint32_t firstport);
491 void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep);
494 void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host);
495 USBBus *usb_bus_find(int busnr);
496 void usb_legacy_register(const char *typename, const char *usbdevice_name,
497 USBDevice *(*usbdevice_init)(USBBus *bus,
498 const char *params));
499 USBDevice *usb_create(USBBus *bus, const char *name);
500 USBDevice *usb_create_simple(USBBus *bus, const char *name);
501 USBDevice *usbdevice_create(const char *cmdline);
502 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
503 USBPortOps *ops, int speedmask);
504 int usb_register_companion(const char *masterbus, USBPort *ports[],
505 uint32_t portcount, uint32_t firstport,
506 void *opaque, USBPortOps *ops, int speedmask);
507 void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr);
508 void usb_unregister_port(USBBus *bus, USBPort *port);
509 int usb_claim_port(USBDevice *dev);
510 void usb_release_port(USBDevice *dev);
511 int usb_device_attach(USBDevice *dev);
512 int usb_device_detach(USBDevice *dev);
513 int usb_device_delete_addr(int busnr, int addr);
515 static inline USBBus *usb_bus_from_device(USBDevice *d)
517 return DO_UPCAST(USBBus, qbus, d->qdev.parent_bus);
520 extern const VMStateDescription vmstate_usb_device;
522 #define VMSTATE_USB_DEVICE(_field, _state) { \
523 .name = (stringify(_field)), \
524 .size = sizeof(USBDevice), \
525 .vmsd = &vmstate_usb_device, \
526 .flags = VMS_STRUCT, \
527 .offset = vmstate_offset_value(_state, _field, USBDevice), \
530 USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr);
532 void usb_device_cancel_packet(USBDevice *dev, USBPacket *p);
534 void usb_device_handle_attach(USBDevice *dev);
536 void usb_device_handle_reset(USBDevice *dev);
538 void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
539 int val, int index, int length, uint8_t *data);
541 void usb_device_handle_data(USBDevice *dev, USBPacket *p);
543 void usb_device_set_interface(USBDevice *dev, int interface,
544 int alt_old, int alt_new);
546 void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
548 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
550 const char *usb_device_get_product_desc(USBDevice *dev);
552 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
554 int ehci_create_ich9_with_companions(PCIBus *bus, int slot);
556 /* quirks.c */
558 /* In bulk endpoints are streaming data sources (iow behave like isoc eps) */
559 #define USB_QUIRK_BUFFER_BULK_IN 0x01
560 /* Bulk pkts in FTDI format, need special handling when combining packets */
561 #define USB_QUIRK_IS_FTDI 0x02
563 int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
564 uint8_t interface_class, uint8_t interface_subclass,
565 uint8_t interface_protocol);
567 #endif