1 | /* |
---|
2 | * QEMU USB HUB emulation |
---|
3 | * |
---|
4 | * Copyright (c) 2005 Fabrice Bellard |
---|
5 | * |
---|
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
---|
7 | * of this software and associated documentation files (the "Software"), to deal |
---|
8 | * in the Software without restriction, including without limitation the rights |
---|
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
---|
10 | * copies of the Software, and to permit persons to whom the Software is |
---|
11 | * furnished to do so, subject to the following conditions: |
---|
12 | * |
---|
13 | * The above copyright notice and this permission notice shall be included in |
---|
14 | * all copies or substantial portions of the Software. |
---|
15 | * |
---|
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
---|
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
---|
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
---|
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
---|
22 | * THE SOFTWARE. |
---|
23 | */ |
---|
24 | #include "vl.h" |
---|
25 | |
---|
26 | //#define DEBUG |
---|
27 | |
---|
28 | #define MAX_PORTS 8 |
---|
29 | |
---|
30 | typedef struct USBHubPort { |
---|
31 | USBPort port; |
---|
32 | uint16_t wPortStatus; |
---|
33 | uint16_t wPortChange; |
---|
34 | } USBHubPort; |
---|
35 | |
---|
36 | typedef struct USBHubState { |
---|
37 | USBDevice dev; |
---|
38 | int nb_ports; |
---|
39 | USBHubPort ports[MAX_PORTS]; |
---|
40 | } USBHubState; |
---|
41 | |
---|
42 | #define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE) |
---|
43 | #define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE) |
---|
44 | #define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR) |
---|
45 | #define GetHubStatus (0xa000 | USB_REQ_GET_STATUS) |
---|
46 | #define GetPortStatus (0xa300 | USB_REQ_GET_STATUS) |
---|
47 | #define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE) |
---|
48 | #define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE) |
---|
49 | |
---|
50 | #define PORT_STAT_CONNECTION 0x0001 |
---|
51 | #define PORT_STAT_ENABLE 0x0002 |
---|
52 | #define PORT_STAT_SUSPEND 0x0004 |
---|
53 | #define PORT_STAT_OVERCURRENT 0x0008 |
---|
54 | #define PORT_STAT_RESET 0x0010 |
---|
55 | #define PORT_STAT_POWER 0x0100 |
---|
56 | #define PORT_STAT_LOW_SPEED 0x0200 |
---|
57 | #define PORT_STAT_HIGH_SPEED 0x0400 |
---|
58 | #define PORT_STAT_TEST 0x0800 |
---|
59 | #define PORT_STAT_INDICATOR 0x1000 |
---|
60 | |
---|
61 | #define PORT_STAT_C_CONNECTION 0x0001 |
---|
62 | #define PORT_STAT_C_ENABLE 0x0002 |
---|
63 | #define PORT_STAT_C_SUSPEND 0x0004 |
---|
64 | #define PORT_STAT_C_OVERCURRENT 0x0008 |
---|
65 | #define PORT_STAT_C_RESET 0x0010 |
---|
66 | |
---|
67 | #define PORT_CONNECTION 0 |
---|
68 | #define PORT_ENABLE 1 |
---|
69 | #define PORT_SUSPEND 2 |
---|
70 | #define PORT_OVERCURRENT 3 |
---|
71 | #define PORT_RESET 4 |
---|
72 | #define PORT_POWER 8 |
---|
73 | #define PORT_LOWSPEED 9 |
---|
74 | #define PORT_HIGHSPEED 10 |
---|
75 | #define PORT_C_CONNECTION 16 |
---|
76 | #define PORT_C_ENABLE 17 |
---|
77 | #define PORT_C_SUSPEND 18 |
---|
78 | #define PORT_C_OVERCURRENT 19 |
---|
79 | #define PORT_C_RESET 20 |
---|
80 | #define PORT_TEST 21 |
---|
81 | #define PORT_INDICATOR 22 |
---|
82 | |
---|
83 | /* same as Linux kernel root hubs */ |
---|
84 | |
---|
85 | static const uint8_t qemu_hub_dev_descriptor[] = { |
---|
86 | 0x12, /* u8 bLength; */ |
---|
87 | 0x01, /* u8 bDescriptorType; Device */ |
---|
88 | 0x10, 0x01, /* u16 bcdUSB; v1.1 */ |
---|
89 | |
---|
90 | 0x09, /* u8 bDeviceClass; HUB_CLASSCODE */ |
---|
91 | 0x00, /* u8 bDeviceSubClass; */ |
---|
92 | 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ |
---|
93 | 0x08, /* u8 bMaxPacketSize0; 8 Bytes */ |
---|
94 | |
---|
95 | 0x00, 0x00, /* u16 idVendor; */ |
---|
96 | 0x00, 0x00, /* u16 idProduct; */ |
---|
97 | 0x01, 0x01, /* u16 bcdDevice */ |
---|
98 | |
---|
99 | 0x03, /* u8 iManufacturer; */ |
---|
100 | 0x02, /* u8 iProduct; */ |
---|
101 | 0x01, /* u8 iSerialNumber; */ |
---|
102 | 0x01 /* u8 bNumConfigurations; */ |
---|
103 | }; |
---|
104 | |
---|
105 | /* XXX: patch interrupt size */ |
---|
106 | static const uint8_t qemu_hub_config_descriptor[] = { |
---|
107 | |
---|
108 | /* one configuration */ |
---|
109 | 0x09, /* u8 bLength; */ |
---|
110 | 0x02, /* u8 bDescriptorType; Configuration */ |
---|
111 | 0x19, 0x00, /* u16 wTotalLength; */ |
---|
112 | 0x01, /* u8 bNumInterfaces; (1) */ |
---|
113 | 0x01, /* u8 bConfigurationValue; */ |
---|
114 | 0x00, /* u8 iConfiguration; */ |
---|
115 | 0xc0, /* u8 bmAttributes; |
---|
116 | Bit 7: must be set, |
---|
117 | 6: Self-powered, |
---|
118 | 5: Remote wakeup, |
---|
119 | 4..0: resvd */ |
---|
120 | 0x00, /* u8 MaxPower; */ |
---|
121 | |
---|
122 | /* USB 1.1: |
---|
123 | * USB 2.0, single TT organization (mandatory): |
---|
124 | * one interface, protocol 0 |
---|
125 | * |
---|
126 | * USB 2.0, multiple TT organization (optional): |
---|
127 | * two interfaces, protocols 1 (like single TT) |
---|
128 | * and 2 (multiple TT mode) ... config is |
---|
129 | * sometimes settable |
---|
130 | * NOT IMPLEMENTED |
---|
131 | */ |
---|
132 | |
---|
133 | /* one interface */ |
---|
134 | 0x09, /* u8 if_bLength; */ |
---|
135 | 0x04, /* u8 if_bDescriptorType; Interface */ |
---|
136 | 0x00, /* u8 if_bInterfaceNumber; */ |
---|
137 | 0x00, /* u8 if_bAlternateSetting; */ |
---|
138 | 0x01, /* u8 if_bNumEndpoints; */ |
---|
139 | 0x09, /* u8 if_bInterfaceClass; HUB_CLASSCODE */ |
---|
140 | 0x00, /* u8 if_bInterfaceSubClass; */ |
---|
141 | 0x00, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
---|
142 | 0x00, /* u8 if_iInterface; */ |
---|
143 | |
---|
144 | /* one endpoint (status change endpoint) */ |
---|
145 | 0x07, /* u8 ep_bLength; */ |
---|
146 | 0x05, /* u8 ep_bDescriptorType; Endpoint */ |
---|
147 | 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
---|
148 | 0x03, /* u8 ep_bmAttributes; Interrupt */ |
---|
149 | 0x02, 0x00, /* u16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */ |
---|
150 | 0xff /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
---|
151 | }; |
---|
152 | |
---|
153 | static const uint8_t qemu_hub_hub_descriptor[] = |
---|
154 | { |
---|
155 | 0x00, /* u8 bLength; patched in later */ |
---|
156 | 0x29, /* u8 bDescriptorType; Hub-descriptor */ |
---|
157 | 0x00, /* u8 bNbrPorts; (patched later) */ |
---|
158 | 0x0a, /* u16 wHubCharacteristics; */ |
---|
159 | 0x00, /* (per-port OC, no power switching) */ |
---|
160 | 0x01, /* u8 bPwrOn2pwrGood; 2ms */ |
---|
161 | 0x00 /* u8 bHubContrCurrent; 0 mA */ |
---|
162 | |
---|
163 | /* DeviceRemovable and PortPwrCtrlMask patched in later */ |
---|
164 | }; |
---|
165 | |
---|
166 | static void usb_hub_attach(USBPort *port1, USBDevice *dev) |
---|
167 | { |
---|
168 | USBHubState *s = port1->opaque; |
---|
169 | USBHubPort *port = &s->ports[port1->index]; |
---|
170 | |
---|
171 | if (dev) { |
---|
172 | if (port->port.dev) |
---|
173 | usb_attach(port1, NULL); |
---|
174 | |
---|
175 | port->wPortStatus |= PORT_STAT_CONNECTION; |
---|
176 | port->wPortChange |= PORT_STAT_C_CONNECTION; |
---|
177 | if (dev->speed == USB_SPEED_LOW) |
---|
178 | port->wPortStatus |= PORT_STAT_LOW_SPEED; |
---|
179 | else |
---|
180 | port->wPortStatus &= ~PORT_STAT_LOW_SPEED; |
---|
181 | port->port.dev = dev; |
---|
182 | /* send the attach message */ |
---|
183 | dev->handle_packet(dev, |
---|
184 | USB_MSG_ATTACH, 0, 0, NULL, 0); |
---|
185 | } else { |
---|
186 | dev = port->port.dev; |
---|
187 | if (dev) { |
---|
188 | port->wPortStatus &= ~PORT_STAT_CONNECTION; |
---|
189 | port->wPortChange |= PORT_STAT_C_CONNECTION; |
---|
190 | if (port->wPortStatus & PORT_STAT_ENABLE) { |
---|
191 | port->wPortStatus &= ~PORT_STAT_ENABLE; |
---|
192 | port->wPortChange |= PORT_STAT_C_ENABLE; |
---|
193 | } |
---|
194 | /* send the detach message */ |
---|
195 | dev->handle_packet(dev, |
---|
196 | USB_MSG_DETACH, 0, 0, NULL, 0); |
---|
197 | port->port.dev = NULL; |
---|
198 | } |
---|
199 | } |
---|
200 | } |
---|
201 | |
---|
202 | static void usb_hub_handle_reset(USBDevice *dev) |
---|
203 | { |
---|
204 | /* XXX: do it */ |
---|
205 | } |
---|
206 | |
---|
207 | static int usb_hub_handle_control(USBDevice *dev, int request, int value, |
---|
208 | int index, int length, uint8_t *data) |
---|
209 | { |
---|
210 | USBHubState *s = (USBHubState *)dev; |
---|
211 | int ret; |
---|
212 | |
---|
213 | switch(request) { |
---|
214 | case DeviceRequest | USB_REQ_GET_STATUS: |
---|
215 | data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
---|
216 | (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
---|
217 | data[1] = 0x00; |
---|
218 | ret = 2; |
---|
219 | break; |
---|
220 | case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: |
---|
221 | if (value == USB_DEVICE_REMOTE_WAKEUP) { |
---|
222 | dev->remote_wakeup = 0; |
---|
223 | } else { |
---|
224 | goto fail; |
---|
225 | } |
---|
226 | ret = 0; |
---|
227 | break; |
---|
228 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: |
---|
229 | if (value == 0 && index != 0x81) { /* clear ep halt */ |
---|
230 | goto fail; |
---|
231 | } |
---|
232 | ret = 0; |
---|
233 | break; |
---|
234 | case DeviceOutRequest | USB_REQ_SET_FEATURE: |
---|
235 | if (value == USB_DEVICE_REMOTE_WAKEUP) { |
---|
236 | dev->remote_wakeup = 1; |
---|
237 | } else { |
---|
238 | goto fail; |
---|
239 | } |
---|
240 | ret = 0; |
---|
241 | break; |
---|
242 | case DeviceOutRequest | USB_REQ_SET_ADDRESS: |
---|
243 | dev->addr = value; |
---|
244 | ret = 0; |
---|
245 | break; |
---|
246 | case DeviceRequest | USB_REQ_GET_DESCRIPTOR: |
---|
247 | switch(value >> 8) { |
---|
248 | case USB_DT_DEVICE: |
---|
249 | memcpy(data, qemu_hub_dev_descriptor, |
---|
250 | sizeof(qemu_hub_dev_descriptor)); |
---|
251 | ret = sizeof(qemu_hub_dev_descriptor); |
---|
252 | break; |
---|
253 | case USB_DT_CONFIG: |
---|
254 | memcpy(data, qemu_hub_config_descriptor, |
---|
255 | sizeof(qemu_hub_config_descriptor)); |
---|
256 | |
---|
257 | /* status change endpoint size based on number |
---|
258 | * of ports */ |
---|
259 | data[22] = (s->nb_ports + 1 + 7) / 8; |
---|
260 | |
---|
261 | ret = sizeof(qemu_hub_config_descriptor); |
---|
262 | break; |
---|
263 | case USB_DT_STRING: |
---|
264 | switch(value & 0xff) { |
---|
265 | case 0: |
---|
266 | /* language ids */ |
---|
267 | data[0] = 4; |
---|
268 | data[1] = 3; |
---|
269 | data[2] = 0x09; |
---|
270 | data[3] = 0x04; |
---|
271 | ret = 4; |
---|
272 | break; |
---|
273 | case 1: |
---|
274 | /* serial number */ |
---|
275 | ret = set_usb_string(data, "314159"); |
---|
276 | break; |
---|
277 | case 2: |
---|
278 | /* product description */ |
---|
279 | ret = set_usb_string(data, "QEMU USB Hub"); |
---|
280 | break; |
---|
281 | case 3: |
---|
282 | /* vendor description */ |
---|
283 | ret = set_usb_string(data, "QEMU " QEMU_VERSION); |
---|
284 | break; |
---|
285 | default: |
---|
286 | goto fail; |
---|
287 | } |
---|
288 | break; |
---|
289 | default: |
---|
290 | goto fail; |
---|
291 | } |
---|
292 | break; |
---|
293 | case DeviceRequest | USB_REQ_GET_CONFIGURATION: |
---|
294 | data[0] = 1; |
---|
295 | ret = 1; |
---|
296 | break; |
---|
297 | case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: |
---|
298 | ret = 0; |
---|
299 | break; |
---|
300 | case DeviceRequest | USB_REQ_GET_INTERFACE: |
---|
301 | data[0] = 0; |
---|
302 | ret = 1; |
---|
303 | break; |
---|
304 | case DeviceOutRequest | USB_REQ_SET_INTERFACE: |
---|
305 | ret = 0; |
---|
306 | break; |
---|
307 | /* usb specific requests */ |
---|
308 | case GetHubStatus: |
---|
309 | data[0] = 0; |
---|
310 | data[1] = 0; |
---|
311 | data[2] = 0; |
---|
312 | data[3] = 0; |
---|
313 | ret = 4; |
---|
314 | break; |
---|
315 | case GetPortStatus: |
---|
316 | { |
---|
317 | unsigned int n = index - 1; |
---|
318 | USBHubPort *port; |
---|
319 | if (n >= s->nb_ports) |
---|
320 | goto fail; |
---|
321 | port = &s->ports[n]; |
---|
322 | data[0] = port->wPortStatus; |
---|
323 | data[1] = port->wPortStatus >> 8; |
---|
324 | data[2] = port->wPortChange; |
---|
325 | data[3] = port->wPortChange >> 8; |
---|
326 | ret = 4; |
---|
327 | } |
---|
328 | break; |
---|
329 | case SetHubFeature: |
---|
330 | case ClearHubFeature: |
---|
331 | if (value == 0 || value == 1) { |
---|
332 | } else { |
---|
333 | goto fail; |
---|
334 | } |
---|
335 | ret = 0; |
---|
336 | break; |
---|
337 | case SetPortFeature: |
---|
338 | { |
---|
339 | unsigned int n = index - 1; |
---|
340 | USBHubPort *port; |
---|
341 | USBDevice *dev; |
---|
342 | if (n >= s->nb_ports) |
---|
343 | goto fail; |
---|
344 | port = &s->ports[n]; |
---|
345 | dev = port->port.dev; |
---|
346 | switch(value) { |
---|
347 | case PORT_SUSPEND: |
---|
348 | port->wPortStatus |= PORT_STAT_SUSPEND; |
---|
349 | break; |
---|
350 | case PORT_RESET: |
---|
351 | if (dev) { |
---|
352 | dev->handle_packet(dev, |
---|
353 | USB_MSG_RESET, 0, 0, NULL, 0); |
---|
354 | port->wPortChange |= PORT_STAT_C_RESET; |
---|
355 | /* set enable bit */ |
---|
356 | port->wPortStatus |= PORT_STAT_ENABLE; |
---|
357 | } |
---|
358 | break; |
---|
359 | case PORT_POWER: |
---|
360 | break; |
---|
361 | default: |
---|
362 | goto fail; |
---|
363 | } |
---|
364 | ret = 0; |
---|
365 | } |
---|
366 | break; |
---|
367 | case ClearPortFeature: |
---|
368 | { |
---|
369 | unsigned int n = index - 1; |
---|
370 | USBHubPort *port; |
---|
371 | USBDevice *dev; |
---|
372 | if (n >= s->nb_ports) |
---|
373 | goto fail; |
---|
374 | port = &s->ports[n]; |
---|
375 | dev = port->port.dev; |
---|
376 | switch(value) { |
---|
377 | case PORT_ENABLE: |
---|
378 | port->wPortStatus &= ~PORT_STAT_ENABLE; |
---|
379 | break; |
---|
380 | case PORT_C_ENABLE: |
---|
381 | port->wPortChange &= ~PORT_STAT_C_ENABLE; |
---|
382 | break; |
---|
383 | case PORT_SUSPEND: |
---|
384 | port->wPortStatus &= ~PORT_STAT_SUSPEND; |
---|
385 | break; |
---|
386 | case PORT_C_SUSPEND: |
---|
387 | port->wPortChange &= ~PORT_STAT_C_SUSPEND; |
---|
388 | break; |
---|
389 | case PORT_C_CONNECTION: |
---|
390 | port->wPortChange &= ~PORT_STAT_C_CONNECTION; |
---|
391 | break; |
---|
392 | case PORT_C_OVERCURRENT: |
---|
393 | port->wPortChange &= ~PORT_STAT_C_OVERCURRENT; |
---|
394 | break; |
---|
395 | case PORT_C_RESET: |
---|
396 | port->wPortChange &= ~PORT_STAT_C_RESET; |
---|
397 | break; |
---|
398 | default: |
---|
399 | goto fail; |
---|
400 | } |
---|
401 | ret = 0; |
---|
402 | } |
---|
403 | break; |
---|
404 | case GetHubDescriptor: |
---|
405 | { |
---|
406 | unsigned int n, limit, var_hub_size = 0; |
---|
407 | memcpy(data, qemu_hub_hub_descriptor, |
---|
408 | sizeof(qemu_hub_hub_descriptor)); |
---|
409 | data[2] = s->nb_ports; |
---|
410 | |
---|
411 | /* fill DeviceRemovable bits */ |
---|
412 | limit = ((s->nb_ports + 1 + 7) / 8) + 7; |
---|
413 | for (n = 7; n < limit; n++) { |
---|
414 | data[n] = 0x00; |
---|
415 | var_hub_size++; |
---|
416 | } |
---|
417 | |
---|
418 | /* fill PortPwrCtrlMask bits */ |
---|
419 | limit = limit + ((s->nb_ports + 7) / 8); |
---|
420 | for (;n < limit; n++) { |
---|
421 | data[n] = 0xff; |
---|
422 | var_hub_size++; |
---|
423 | } |
---|
424 | |
---|
425 | ret = sizeof(qemu_hub_hub_descriptor) + var_hub_size; |
---|
426 | data[0] = ret; |
---|
427 | break; |
---|
428 | } |
---|
429 | default: |
---|
430 | fail: |
---|
431 | ret = USB_RET_STALL; |
---|
432 | break; |
---|
433 | } |
---|
434 | return ret; |
---|
435 | } |
---|
436 | |
---|
437 | static int usb_hub_handle_data(USBDevice *dev, int pid, |
---|
438 | uint8_t devep, uint8_t *data, int len) |
---|
439 | { |
---|
440 | USBHubState *s = (USBHubState *)dev; |
---|
441 | int ret; |
---|
442 | |
---|
443 | switch(pid) { |
---|
444 | case USB_TOKEN_IN: |
---|
445 | if (devep == 1) { |
---|
446 | USBHubPort *port; |
---|
447 | unsigned int status; |
---|
448 | int i, n; |
---|
449 | n = (s->nb_ports + 1 + 7) / 8; |
---|
450 | if (len == 1) { /* FreeBSD workaround */ |
---|
451 | n = 1; |
---|
452 | } else if (n > len) { |
---|
453 | return USB_RET_BABBLE; |
---|
454 | } |
---|
455 | status = 0; |
---|
456 | for(i = 0; i < s->nb_ports; i++) { |
---|
457 | port = &s->ports[i]; |
---|
458 | if (port->wPortChange) |
---|
459 | status |= (1 << (i + 1)); |
---|
460 | } |
---|
461 | if (status != 0) { |
---|
462 | for(i = 0; i < n; i++) { |
---|
463 | data[i] = status >> (8 * i); |
---|
464 | } |
---|
465 | ret = n; |
---|
466 | } else { |
---|
467 | ret = USB_RET_NAK; /* usb11 11.13.1 */ |
---|
468 | } |
---|
469 | } else { |
---|
470 | goto fail; |
---|
471 | } |
---|
472 | break; |
---|
473 | case USB_TOKEN_OUT: |
---|
474 | default: |
---|
475 | fail: |
---|
476 | ret = USB_RET_STALL; |
---|
477 | break; |
---|
478 | } |
---|
479 | return ret; |
---|
480 | } |
---|
481 | |
---|
482 | static int usb_hub_broadcast_packet(USBHubState *s, int pid, |
---|
483 | uint8_t devaddr, uint8_t devep, |
---|
484 | uint8_t *data, int len) |
---|
485 | { |
---|
486 | USBHubPort *port; |
---|
487 | USBDevice *dev; |
---|
488 | int i, ret; |
---|
489 | |
---|
490 | for(i = 0; i < s->nb_ports; i++) { |
---|
491 | port = &s->ports[i]; |
---|
492 | dev = port->port.dev; |
---|
493 | if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) { |
---|
494 | ret = dev->handle_packet(dev, pid, |
---|
495 | devaddr, devep, |
---|
496 | data, len); |
---|
497 | if (ret != USB_RET_NODEV) { |
---|
498 | return ret; |
---|
499 | } |
---|
500 | } |
---|
501 | } |
---|
502 | return USB_RET_NODEV; |
---|
503 | } |
---|
504 | |
---|
505 | static int usb_hub_handle_packet(USBDevice *dev, int pid, |
---|
506 | uint8_t devaddr, uint8_t devep, |
---|
507 | uint8_t *data, int len) |
---|
508 | { |
---|
509 | USBHubState *s = (USBHubState *)dev; |
---|
510 | |
---|
511 | #if defined(DEBUG) && 0 |
---|
512 | printf("usb_hub: pid=0x%x\n", pid); |
---|
513 | #endif |
---|
514 | if (dev->state == USB_STATE_DEFAULT && |
---|
515 | dev->addr != 0 && |
---|
516 | devaddr != dev->addr && |
---|
517 | (pid == USB_TOKEN_SETUP || |
---|
518 | pid == USB_TOKEN_OUT || |
---|
519 | pid == USB_TOKEN_IN)) { |
---|
520 | /* broadcast the packet to the devices */ |
---|
521 | return usb_hub_broadcast_packet(s, pid, devaddr, devep, data, len); |
---|
522 | } |
---|
523 | return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len); |
---|
524 | } |
---|
525 | |
---|
526 | static void usb_hub_handle_destroy(USBDevice *dev) |
---|
527 | { |
---|
528 | USBHubState *s = (USBHubState *)dev; |
---|
529 | |
---|
530 | qemu_free(s); |
---|
531 | } |
---|
532 | |
---|
533 | USBDevice *usb_hub_init(int nb_ports) |
---|
534 | { |
---|
535 | USBHubState *s; |
---|
536 | USBHubPort *port; |
---|
537 | int i; |
---|
538 | |
---|
539 | if (nb_ports > MAX_PORTS) |
---|
540 | return NULL; |
---|
541 | s = qemu_mallocz(sizeof(USBHubState)); |
---|
542 | if (!s) |
---|
543 | return NULL; |
---|
544 | s->dev.speed = USB_SPEED_FULL; |
---|
545 | s->dev.handle_packet = usb_hub_handle_packet; |
---|
546 | |
---|
547 | /* generic USB device init */ |
---|
548 | s->dev.handle_reset = usb_hub_handle_reset; |
---|
549 | s->dev.handle_control = usb_hub_handle_control; |
---|
550 | s->dev.handle_data = usb_hub_handle_data; |
---|
551 | s->dev.handle_destroy = usb_hub_handle_destroy; |
---|
552 | |
---|
553 | pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Hub"); |
---|
554 | |
---|
555 | s->nb_ports = nb_ports; |
---|
556 | for(i = 0; i < s->nb_ports; i++) { |
---|
557 | port = &s->ports[i]; |
---|
558 | qemu_register_usb_port(&port->port, s, i, usb_hub_attach); |
---|
559 | port->wPortStatus = PORT_STAT_POWER; |
---|
560 | port->wPortChange = 0; |
---|
561 | } |
---|
562 | return (USBDevice *)s; |
---|
563 | } |
---|