root / hw / usb-bus.c @ 1f51470d
History | View | Annotate | Download (14.9 kB)
1 |
#include "hw.h" |
---|---|
2 |
#include "usb.h" |
3 |
#include "qdev.h" |
4 |
#include "sysemu.h" |
5 |
#include "monitor.h" |
6 |
#include "trace.h" |
7 |
|
8 |
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); |
9 |
|
10 |
static char *usb_get_dev_path(DeviceState *dev); |
11 |
static char *usb_get_fw_dev_path(DeviceState *qdev); |
12 |
static int usb_qdev_exit(DeviceState *qdev); |
13 |
|
14 |
static struct BusInfo usb_bus_info = { |
15 |
.name = "USB",
|
16 |
.size = sizeof(USBBus),
|
17 |
.print_dev = usb_bus_dev_print, |
18 |
.get_dev_path = usb_get_dev_path, |
19 |
.get_fw_dev_path = usb_get_fw_dev_path, |
20 |
.props = (Property[]) { |
21 |
DEFINE_PROP_STRING("port", USBDevice, port_path),
|
22 |
DEFINE_PROP_END_OF_LIST() |
23 |
}, |
24 |
}; |
25 |
static int next_usb_bus = 0; |
26 |
static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
|
27 |
|
28 |
const VMStateDescription vmstate_usb_device = {
|
29 |
.name = "USBDevice",
|
30 |
.version_id = 1,
|
31 |
.minimum_version_id = 1,
|
32 |
.fields = (VMStateField []) { |
33 |
VMSTATE_UINT8(addr, USBDevice), |
34 |
VMSTATE_INT32(state, USBDevice), |
35 |
VMSTATE_INT32(remote_wakeup, USBDevice), |
36 |
VMSTATE_INT32(setup_state, USBDevice), |
37 |
VMSTATE_INT32(setup_len, USBDevice), |
38 |
VMSTATE_INT32(setup_index, USBDevice), |
39 |
VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
|
40 |
VMSTATE_END_OF_LIST(), |
41 |
} |
42 |
}; |
43 |
|
44 |
void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host)
|
45 |
{ |
46 |
qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
|
47 |
bus->ops = ops; |
48 |
bus->busnr = next_usb_bus++; |
49 |
bus->qbus.allow_hotplug = 1; /* Yes, we can */ |
50 |
QTAILQ_INIT(&bus->free); |
51 |
QTAILQ_INIT(&bus->used); |
52 |
QTAILQ_INSERT_TAIL(&busses, bus, next); |
53 |
} |
54 |
|
55 |
USBBus *usb_bus_find(int busnr)
|
56 |
{ |
57 |
USBBus *bus; |
58 |
|
59 |
if (-1 == busnr) |
60 |
return QTAILQ_FIRST(&busses);
|
61 |
QTAILQ_FOREACH(bus, &busses, next) { |
62 |
if (bus->busnr == busnr)
|
63 |
return bus;
|
64 |
} |
65 |
return NULL; |
66 |
} |
67 |
|
68 |
static int usb_device_init(USBDevice *dev) |
69 |
{ |
70 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
71 |
if (klass->init) {
|
72 |
return klass->init(dev);
|
73 |
} |
74 |
return 0; |
75 |
} |
76 |
|
77 |
USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr) |
78 |
{ |
79 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
80 |
if (klass->find_device) {
|
81 |
return klass->find_device(dev, addr);
|
82 |
} |
83 |
return NULL; |
84 |
} |
85 |
|
86 |
static void usb_device_handle_destroy(USBDevice *dev) |
87 |
{ |
88 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
89 |
if (klass->handle_destroy) {
|
90 |
klass->handle_destroy(dev); |
91 |
} |
92 |
} |
93 |
|
94 |
void usb_device_cancel_packet(USBDevice *dev, USBPacket *p)
|
95 |
{ |
96 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
97 |
if (klass->cancel_packet) {
|
98 |
klass->cancel_packet(dev, p); |
99 |
} |
100 |
} |
101 |
|
102 |
void usb_device_handle_attach(USBDevice *dev)
|
103 |
{ |
104 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
105 |
if (klass->handle_attach) {
|
106 |
klass->handle_attach(dev); |
107 |
} |
108 |
} |
109 |
|
110 |
void usb_device_handle_reset(USBDevice *dev)
|
111 |
{ |
112 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
113 |
if (klass->handle_reset) {
|
114 |
klass->handle_reset(dev); |
115 |
} |
116 |
} |
117 |
|
118 |
int usb_device_handle_control(USBDevice *dev, USBPacket *p, int request, |
119 |
int value, int index, int length, uint8_t *data) |
120 |
{ |
121 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
122 |
if (klass->handle_control) {
|
123 |
return klass->handle_control(dev, p, request, value, index, length,
|
124 |
data); |
125 |
} |
126 |
return -ENOSYS;
|
127 |
} |
128 |
|
129 |
int usb_device_handle_data(USBDevice *dev, USBPacket *p)
|
130 |
{ |
131 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
132 |
if (klass->handle_data) {
|
133 |
return klass->handle_data(dev, p);
|
134 |
} |
135 |
return -ENOSYS;
|
136 |
} |
137 |
|
138 |
const char *usb_device_get_product_desc(USBDevice *dev) |
139 |
{ |
140 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
141 |
return klass->product_desc;
|
142 |
} |
143 |
|
144 |
const USBDesc *usb_device_get_usb_desc(USBDevice *dev)
|
145 |
{ |
146 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
147 |
return klass->usb_desc;
|
148 |
} |
149 |
|
150 |
void usb_device_set_interface(USBDevice *dev, int interface, |
151 |
int alt_old, int alt_new) |
152 |
{ |
153 |
USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
154 |
if (klass->set_interface) {
|
155 |
klass->set_interface(dev, interface, alt_old, alt_new); |
156 |
} |
157 |
} |
158 |
|
159 |
static int usb_qdev_init(DeviceState *qdev) |
160 |
{ |
161 |
USBDevice *dev = USB_DEVICE(qdev); |
162 |
int rc;
|
163 |
|
164 |
pstrcpy(dev->product_desc, sizeof(dev->product_desc),
|
165 |
usb_device_get_product_desc(dev)); |
166 |
dev->auto_attach = 1;
|
167 |
QLIST_INIT(&dev->strings); |
168 |
usb_ep_init(dev); |
169 |
rc = usb_claim_port(dev); |
170 |
if (rc != 0) { |
171 |
return rc;
|
172 |
} |
173 |
rc = usb_device_init(dev); |
174 |
if (rc != 0) { |
175 |
usb_release_port(dev); |
176 |
return rc;
|
177 |
} |
178 |
if (dev->auto_attach) {
|
179 |
rc = usb_device_attach(dev); |
180 |
if (rc != 0) { |
181 |
usb_qdev_exit(qdev); |
182 |
return rc;
|
183 |
} |
184 |
} |
185 |
return 0; |
186 |
} |
187 |
|
188 |
static int usb_qdev_exit(DeviceState *qdev) |
189 |
{ |
190 |
USBDevice *dev = USB_DEVICE(qdev); |
191 |
|
192 |
if (dev->attached) {
|
193 |
usb_device_detach(dev); |
194 |
} |
195 |
usb_device_handle_destroy(dev); |
196 |
if (dev->port) {
|
197 |
usb_release_port(dev); |
198 |
} |
199 |
return 0; |
200 |
} |
201 |
|
202 |
typedef struct LegacyUSBFactory |
203 |
{ |
204 |
const char *name; |
205 |
const char *usbdevice_name; |
206 |
USBDevice *(*usbdevice_init)(const char *params); |
207 |
} LegacyUSBFactory; |
208 |
|
209 |
static GSList *legacy_usb_factory;
|
210 |
|
211 |
void usb_legacy_register(const char *typename, const char *usbdevice_name, |
212 |
USBDevice *(*usbdevice_init)(const char *params)) |
213 |
{ |
214 |
if (usbdevice_name) {
|
215 |
LegacyUSBFactory *f = g_malloc0(sizeof(*f));
|
216 |
f->name = typename; |
217 |
f->usbdevice_name = usbdevice_name; |
218 |
f->usbdevice_init = usbdevice_init; |
219 |
legacy_usb_factory = g_slist_append(legacy_usb_factory, f); |
220 |
} |
221 |
} |
222 |
|
223 |
USBDevice *usb_create(USBBus *bus, const char *name) |
224 |
{ |
225 |
DeviceState *dev; |
226 |
|
227 |
#if 1 |
228 |
/* temporary stopgap until all usb is properly qdev-ified */
|
229 |
if (!bus) {
|
230 |
bus = usb_bus_find(-1);
|
231 |
if (!bus)
|
232 |
return NULL; |
233 |
error_report("%s: no bus specified, using \"%s\" for \"%s\"",
|
234 |
__FUNCTION__, bus->qbus.name, name); |
235 |
} |
236 |
#endif
|
237 |
|
238 |
dev = qdev_create(&bus->qbus, name); |
239 |
return USB_DEVICE(dev);
|
240 |
} |
241 |
|
242 |
USBDevice *usb_create_simple(USBBus *bus, const char *name) |
243 |
{ |
244 |
USBDevice *dev = usb_create(bus, name); |
245 |
int rc;
|
246 |
|
247 |
if (!dev) {
|
248 |
error_report("Failed to create USB device '%s'", name);
|
249 |
return NULL; |
250 |
} |
251 |
rc = qdev_init(&dev->qdev); |
252 |
if (rc < 0) { |
253 |
error_report("Failed to initialize USB device '%s'", name);
|
254 |
return NULL; |
255 |
} |
256 |
return dev;
|
257 |
} |
258 |
|
259 |
static void usb_fill_port(USBPort *port, void *opaque, int index, |
260 |
USBPortOps *ops, int speedmask)
|
261 |
{ |
262 |
port->opaque = opaque; |
263 |
port->index = index; |
264 |
port->ops = ops; |
265 |
port->speedmask = speedmask; |
266 |
usb_port_location(port, NULL, index + 1); |
267 |
} |
268 |
|
269 |
void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, |
270 |
USBPortOps *ops, int speedmask)
|
271 |
{ |
272 |
usb_fill_port(port, opaque, index, ops, speedmask); |
273 |
QTAILQ_INSERT_TAIL(&bus->free, port, next); |
274 |
bus->nfree++; |
275 |
} |
276 |
|
277 |
int usb_register_companion(const char *masterbus, USBPort *ports[], |
278 |
uint32_t portcount, uint32_t firstport, |
279 |
void *opaque, USBPortOps *ops, int speedmask) |
280 |
{ |
281 |
USBBus *bus; |
282 |
int i;
|
283 |
|
284 |
QTAILQ_FOREACH(bus, &busses, next) { |
285 |
if (strcmp(bus->qbus.name, masterbus) == 0) { |
286 |
break;
|
287 |
} |
288 |
} |
289 |
|
290 |
if (!bus || !bus->ops->register_companion) {
|
291 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
|
292 |
"an USB masterbus");
|
293 |
if (bus) {
|
294 |
error_printf_unless_qmp( |
295 |
"USB bus '%s' does not allow companion controllers\n",
|
296 |
masterbus); |
297 |
} |
298 |
return -1; |
299 |
} |
300 |
|
301 |
for (i = 0; i < portcount; i++) { |
302 |
usb_fill_port(ports[i], opaque, i, ops, speedmask); |
303 |
} |
304 |
|
305 |
return bus->ops->register_companion(bus, ports, portcount, firstport);
|
306 |
} |
307 |
|
308 |
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr) |
309 |
{ |
310 |
if (upstream) {
|
311 |
snprintf(downstream->path, sizeof(downstream->path), "%s.%d", |
312 |
upstream->path, portnr); |
313 |
} else {
|
314 |
snprintf(downstream->path, sizeof(downstream->path), "%d", portnr); |
315 |
} |
316 |
} |
317 |
|
318 |
void usb_unregister_port(USBBus *bus, USBPort *port)
|
319 |
{ |
320 |
if (port->dev)
|
321 |
qdev_free(&port->dev->qdev); |
322 |
QTAILQ_REMOVE(&bus->free, port, next); |
323 |
bus->nfree--; |
324 |
} |
325 |
|
326 |
int usb_claim_port(USBDevice *dev)
|
327 |
{ |
328 |
USBBus *bus = usb_bus_from_device(dev); |
329 |
USBPort *port; |
330 |
|
331 |
assert(dev->port == NULL);
|
332 |
|
333 |
if (dev->port_path) {
|
334 |
QTAILQ_FOREACH(port, &bus->free, next) { |
335 |
if (strcmp(port->path, dev->port_path) == 0) { |
336 |
break;
|
337 |
} |
338 |
} |
339 |
if (port == NULL) { |
340 |
error_report("Error: usb port %s (bus %s) not found (in use?)",
|
341 |
dev->port_path, bus->qbus.name); |
342 |
return -1; |
343 |
} |
344 |
} else {
|
345 |
if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) { |
346 |
/* Create a new hub and chain it on */
|
347 |
usb_create_simple(bus, "usb-hub");
|
348 |
} |
349 |
if (bus->nfree == 0) { |
350 |
error_report("Error: tried to attach usb device %s to a bus "
|
351 |
"with no free ports", dev->product_desc);
|
352 |
return -1; |
353 |
} |
354 |
port = QTAILQ_FIRST(&bus->free); |
355 |
} |
356 |
trace_usb_port_claim(bus->busnr, port->path); |
357 |
|
358 |
QTAILQ_REMOVE(&bus->free, port, next); |
359 |
bus->nfree--; |
360 |
|
361 |
dev->port = port; |
362 |
port->dev = dev; |
363 |
|
364 |
QTAILQ_INSERT_TAIL(&bus->used, port, next); |
365 |
bus->nused++; |
366 |
return 0; |
367 |
} |
368 |
|
369 |
void usb_release_port(USBDevice *dev)
|
370 |
{ |
371 |
USBBus *bus = usb_bus_from_device(dev); |
372 |
USBPort *port = dev->port; |
373 |
|
374 |
assert(port != NULL);
|
375 |
trace_usb_port_release(bus->busnr, port->path); |
376 |
|
377 |
QTAILQ_REMOVE(&bus->used, port, next); |
378 |
bus->nused--; |
379 |
|
380 |
dev->port = NULL;
|
381 |
port->dev = NULL;
|
382 |
|
383 |
QTAILQ_INSERT_TAIL(&bus->free, port, next); |
384 |
bus->nfree++; |
385 |
} |
386 |
|
387 |
int usb_device_attach(USBDevice *dev)
|
388 |
{ |
389 |
USBBus *bus = usb_bus_from_device(dev); |
390 |
USBPort *port = dev->port; |
391 |
|
392 |
assert(port != NULL);
|
393 |
assert(!dev->attached); |
394 |
trace_usb_port_attach(bus->busnr, port->path); |
395 |
|
396 |
if (!(port->speedmask & dev->speedmask)) {
|
397 |
error_report("Warning: speed mismatch trying to attach "
|
398 |
"usb device %s to bus %s",
|
399 |
dev->product_desc, bus->qbus.name); |
400 |
return -1; |
401 |
} |
402 |
|
403 |
dev->attached++; |
404 |
usb_attach(port); |
405 |
|
406 |
return 0; |
407 |
} |
408 |
|
409 |
int usb_device_detach(USBDevice *dev)
|
410 |
{ |
411 |
USBBus *bus = usb_bus_from_device(dev); |
412 |
USBPort *port = dev->port; |
413 |
|
414 |
assert(port != NULL);
|
415 |
assert(dev->attached); |
416 |
trace_usb_port_detach(bus->busnr, port->path); |
417 |
|
418 |
usb_detach(port); |
419 |
dev->attached--; |
420 |
return 0; |
421 |
} |
422 |
|
423 |
int usb_device_delete_addr(int busnr, int addr) |
424 |
{ |
425 |
USBBus *bus; |
426 |
USBPort *port; |
427 |
USBDevice *dev; |
428 |
|
429 |
bus = usb_bus_find(busnr); |
430 |
if (!bus)
|
431 |
return -1; |
432 |
|
433 |
QTAILQ_FOREACH(port, &bus->used, next) { |
434 |
if (port->dev->addr == addr)
|
435 |
break;
|
436 |
} |
437 |
if (!port)
|
438 |
return -1; |
439 |
dev = port->dev; |
440 |
|
441 |
qdev_free(&dev->qdev); |
442 |
return 0; |
443 |
} |
444 |
|
445 |
static const char *usb_speed(unsigned int speed) |
446 |
{ |
447 |
static const char *txt[] = { |
448 |
[ USB_SPEED_LOW ] = "1.5",
|
449 |
[ USB_SPEED_FULL ] = "12",
|
450 |
[ USB_SPEED_HIGH ] = "480",
|
451 |
[ USB_SPEED_SUPER ] = "5000",
|
452 |
}; |
453 |
if (speed >= ARRAY_SIZE(txt))
|
454 |
return "?"; |
455 |
return txt[speed];
|
456 |
} |
457 |
|
458 |
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent) |
459 |
{ |
460 |
USBDevice *dev = USB_DEVICE(qdev); |
461 |
USBBus *bus = usb_bus_from_device(dev); |
462 |
|
463 |
monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
|
464 |
indent, "", bus->busnr, dev->addr,
|
465 |
dev->port ? dev->port->path : "-",
|
466 |
usb_speed(dev->speed), dev->product_desc, |
467 |
dev->attached ? ", attached" : ""); |
468 |
} |
469 |
|
470 |
static char *usb_get_dev_path(DeviceState *qdev) |
471 |
{ |
472 |
USBDevice *dev = USB_DEVICE(qdev); |
473 |
return g_strdup(dev->port->path);
|
474 |
} |
475 |
|
476 |
static char *usb_get_fw_dev_path(DeviceState *qdev) |
477 |
{ |
478 |
USBDevice *dev = USB_DEVICE(qdev); |
479 |
char *fw_path, *in;
|
480 |
ssize_t pos = 0, fw_len;
|
481 |
long nr;
|
482 |
|
483 |
fw_len = 32 + strlen(dev->port->path) * 6; |
484 |
fw_path = g_malloc(fw_len); |
485 |
in = dev->port->path; |
486 |
while (fw_len - pos > 0) { |
487 |
nr = strtol(in, &in, 10);
|
488 |
if (in[0] == '.') { |
489 |
/* some hub between root port and device */
|
490 |
pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
|
491 |
in++; |
492 |
} else {
|
493 |
/* the device itself */
|
494 |
pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
|
495 |
qdev_fw_name(qdev), nr); |
496 |
break;
|
497 |
} |
498 |
} |
499 |
return fw_path;
|
500 |
} |
501 |
|
502 |
void usb_info(Monitor *mon)
|
503 |
{ |
504 |
USBBus *bus; |
505 |
USBDevice *dev; |
506 |
USBPort *port; |
507 |
|
508 |
if (QTAILQ_EMPTY(&busses)) {
|
509 |
monitor_printf(mon, "USB support not enabled\n");
|
510 |
return;
|
511 |
} |
512 |
|
513 |
QTAILQ_FOREACH(bus, &busses, next) { |
514 |
QTAILQ_FOREACH(port, &bus->used, next) { |
515 |
dev = port->dev; |
516 |
if (!dev)
|
517 |
continue;
|
518 |
monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
|
519 |
bus->busnr, dev->addr, port->path, usb_speed(dev->speed), |
520 |
dev->product_desc); |
521 |
} |
522 |
} |
523 |
} |
524 |
|
525 |
/* handle legacy -usbdevice cmd line option */
|
526 |
USBDevice *usbdevice_create(const char *cmdline) |
527 |
{ |
528 |
USBBus *bus = usb_bus_find(-1 /* any */); |
529 |
LegacyUSBFactory *f = NULL;
|
530 |
GSList *i; |
531 |
char driver[32]; |
532 |
const char *params; |
533 |
int len;
|
534 |
|
535 |
params = strchr(cmdline,':');
|
536 |
if (params) {
|
537 |
params++; |
538 |
len = params - cmdline; |
539 |
if (len > sizeof(driver)) |
540 |
len = sizeof(driver);
|
541 |
pstrcpy(driver, len, cmdline); |
542 |
} else {
|
543 |
params = "";
|
544 |
pstrcpy(driver, sizeof(driver), cmdline);
|
545 |
} |
546 |
|
547 |
for (i = legacy_usb_factory; i; i = i->next) {
|
548 |
f = i->data; |
549 |
if (strcmp(f->usbdevice_name, driver) == 0) { |
550 |
break;
|
551 |
} |
552 |
} |
553 |
if (i == NULL) { |
554 |
#if 0
|
555 |
/* no error because some drivers are not converted (yet) */
|
556 |
error_report("usbdevice %s not found", driver);
|
557 |
#endif
|
558 |
return NULL; |
559 |
} |
560 |
|
561 |
if (!f->usbdevice_init) {
|
562 |
if (*params) {
|
563 |
error_report("usbdevice %s accepts no params", driver);
|
564 |
return NULL; |
565 |
} |
566 |
return usb_create_simple(bus, f->name);
|
567 |
} |
568 |
return f->usbdevice_init(params);
|
569 |
} |
570 |
|
571 |
static void usb_device_class_init(ObjectClass *klass, void *data) |
572 |
{ |
573 |
DeviceClass *k = DEVICE_CLASS(klass); |
574 |
k->bus_info = &usb_bus_info; |
575 |
k->init = usb_qdev_init; |
576 |
k->unplug = qdev_simple_unplug_cb; |
577 |
k->exit = usb_qdev_exit; |
578 |
} |
579 |
|
580 |
static TypeInfo usb_device_type_info = {
|
581 |
.name = TYPE_USB_DEVICE, |
582 |
.parent = TYPE_DEVICE, |
583 |
.instance_size = sizeof(USBDevice),
|
584 |
.abstract = true,
|
585 |
.class_size = sizeof(USBDeviceClass),
|
586 |
.class_init = usb_device_class_init, |
587 |
}; |
588 |
|
589 |
static void usb_register_types(void) |
590 |
{ |
591 |
type_register_static(&usb_device_type_info); |
592 |
} |
593 |
|
594 |
type_init(usb_register_types) |