1 /*
2 * USB UHCI controller emulation
3 *
4 * Copyright (c) 2005 Fabrice Bellard
5 *
6 * Copyright (c) 2008 Max Krasnyansky
7 * Magor rewrite of the UHCI data structures parser and frame processor
8 * Support for fully async operation and multiple outstanding transactions
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 * THE SOFTWARE.
27 */
28
29 #include "qemu/osdep.h"
30 #include "hw/usb.h"
31 #include "hw/usb/uhci-regs.h"
32 #include "migration/vmstate.h"
33 #include "hw/pci/pci.h"
34 #include "hw/irq.h"
35 #include "hw/qdev-properties.h"
36 #include "qapi/error.h"
37 #include "qemu/timer.h"
38 #include "qemu/iov.h"
39 #include "system/dma.h"
40 #include "trace.h"
41 #include "qemu/main-loop.h"
42 #include "qemu/module.h"
43 #include "qom/object.h"
44 #include "hcd-uhci.h"
45
46 #define FRAME_TIMER_FREQ 1000
47
48 #define FRAME_MAX_LOOPS 256
49
50 /* Must be large enough to handle 10 frame delay for initial isoc requests */
51 #define QH_VALID 32
52
53 #define MAX_FRAMES_PER_TICK (QH_VALID / 2)
54
55 enum {
56 TD_RESULT_STOP_FRAME = 10,
57 TD_RESULT_COMPLETE,
58 TD_RESULT_NEXT_QH,
59 TD_RESULT_ASYNC_START,
60 TD_RESULT_ASYNC_CONT,
61 };
62
63 typedef struct UHCIAsync UHCIAsync;
64
65 struct UHCIPCIDeviceClass {
66 PCIDeviceClass parent_class;
67 UHCIInfo info;
68 };
69
70 /*
71 * Pending async transaction.
72 * 'packet' must be the first field because completion
73 * handler does "(UHCIAsync *) pkt" cast.
74 */
75
76 struct UHCIAsync {
77 USBPacket packet;
78 uint8_t static_buf[64]; /* 64 bytes is enough, except for isoc packets */
79 uint8_t *buf;
80 UHCIQueue *queue;
81 QTAILQ_ENTRY(UHCIAsync) next;
82 uint32_t td_addr;
83 uint8_t done;
84 };
85
86 struct UHCIQueue {
87 uint32_t qh_addr;
88 uint32_t token;
89 UHCIState *uhci;
90 USBEndpoint *ep;
91 QTAILQ_ENTRY(UHCIQueue) next;
92 QTAILQ_HEAD(, UHCIAsync) asyncs;
93 int8_t valid;
94 };
95
96 typedef struct UHCI_TD {
97 uint32_t link;
98 uint32_t ctrl; /* see TD_CTRL_xxx */
99 uint32_t token;
100 uint32_t buffer;
101 } UHCI_TD;
102
103 typedef struct UHCI_QH {
104 uint32_t link;
105 uint32_t el_link;
106 } UHCI_QH;
107
108 static void uhci_async_cancel(UHCIAsync *async);
109 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td);
110 static void uhci_resume(void *opaque);
111
uhci_queue_token(UHCI_TD * td)112 static inline int32_t uhci_queue_token(UHCI_TD *td)
113 {
114 if ((td->token & (0xf << 15)) == 0) {
115 /* ctrl ep, cover ep and dev, not pid! */
116 return td->token & 0x7ff00;
117 } else {
118 /* covers ep, dev, pid -> identifies the endpoint */
119 return td->token & 0x7ffff;
120 }
121 }
122
uhci_queue_new(UHCIState * s,uint32_t qh_addr,UHCI_TD * td,USBEndpoint * ep)123 static UHCIQueue *uhci_queue_new(UHCIState *s, uint32_t qh_addr, UHCI_TD *td,
124 USBEndpoint *ep)
125 {
126 UHCIQueue *queue;
127
128 queue = g_new0(UHCIQueue, 1);
129 queue->uhci = s;
130 queue->qh_addr = qh_addr;
131 queue->token = uhci_queue_token(td);
132 queue->ep = ep;
133 QTAILQ_INIT(&queue->asyncs);
134 QTAILQ_INSERT_HEAD(&s->queues, queue, next);
135 queue->valid = QH_VALID;
136 trace_usb_uhci_queue_add(queue->token);
137 return queue;
138 }
139
uhci_queue_free(UHCIQueue * queue,const char * reason)140 static void uhci_queue_free(UHCIQueue *queue, const char *reason)
141 {
142 UHCIState *s = queue->uhci;
143 UHCIAsync *async;
144
145 while (!QTAILQ_EMPTY(&queue->asyncs)) {
146 async = QTAILQ_FIRST(&queue->asyncs);
147 uhci_async_cancel(async);
148 }
149 usb_device_ep_stopped(queue->ep->dev, queue->ep);
150
151 trace_usb_uhci_queue_del(queue->token, reason);
152 QTAILQ_REMOVE(&s->queues, queue, next);
153 g_free(queue);
154 }
155
uhci_queue_find(UHCIState * s,UHCI_TD * td)156 static UHCIQueue *uhci_queue_find(UHCIState *s, UHCI_TD *td)
157 {
158 uint32_t token = uhci_queue_token(td);
159 UHCIQueue *queue;
160
161 QTAILQ_FOREACH(queue, &s->queues, next) {
162 if (queue->token == token) {
163 return queue;
164 }
165 }
166 return NULL;
167 }
168
uhci_queue_verify(UHCIQueue * queue,uint32_t qh_addr,UHCI_TD * td,uint32_t td_addr,bool queuing)169 static bool uhci_queue_verify(UHCIQueue *queue, uint32_t qh_addr, UHCI_TD *td,
170 uint32_t td_addr, bool queuing)
171 {
172 UHCIAsync *first = QTAILQ_FIRST(&queue->asyncs);
173 uint32_t queue_token_addr = (queue->token >> 8) & 0x7f;
174
175 return queue->qh_addr == qh_addr &&
176 queue->token == uhci_queue_token(td) &&
177 queue_token_addr == queue->ep->dev->addr &&
178 (queuing || !(td->ctrl & TD_CTRL_ACTIVE) || first == NULL ||
179 first->td_addr == td_addr);
180 }
181
uhci_async_alloc(UHCIQueue * queue,uint32_t td_addr)182 static UHCIAsync *uhci_async_alloc(UHCIQueue *queue, uint32_t td_addr)
183 {
184 UHCIAsync *async = g_new0(UHCIAsync, 1);
185
186 async->queue = queue;
187 async->td_addr = td_addr;
188 usb_packet_init(&async->packet);
189 trace_usb_uhci_packet_add(async->queue->token, async->td_addr);
190
191 return async;
192 }
193
uhci_async_free(UHCIAsync * async)194 static void uhci_async_free(UHCIAsync *async)
195 {
196 trace_usb_uhci_packet_del(async->queue->token, async->td_addr);
197 usb_packet_cleanup(&async->packet);
198 if (async->buf != async->static_buf) {
199 g_free(async->buf);
200 }
201 g_free(async);
202 }
203
uhci_async_link(UHCIAsync * async)204 static void uhci_async_link(UHCIAsync *async)
205 {
206 UHCIQueue *queue = async->queue;
207 QTAILQ_INSERT_TAIL(&queue->asyncs, async, next);
208 trace_usb_uhci_packet_link_async(async->queue->token, async->td_addr);
209 }
210
uhci_async_unlink(UHCIAsync * async)211 static void uhci_async_unlink(UHCIAsync *async)
212 {
213 UHCIQueue *queue = async->queue;
214 QTAILQ_REMOVE(&queue->asyncs, async, next);
215 trace_usb_uhci_packet_unlink_async(async->queue->token, async->td_addr);
216 }
217
uhci_async_cancel(UHCIAsync * async)218 static void uhci_async_cancel(UHCIAsync *async)
219 {
220 uhci_async_unlink(async);
221 trace_usb_uhci_packet_cancel(async->queue->token, async->td_addr,
222 async->done);
223 if (!async->done) {
224 usb_cancel_packet(&async->packet);
225 }
226 uhci_async_free(async);
227 }
228
229 /*
230 * Mark all outstanding async packets as invalid.
231 * This is used for canceling them when TDs are removed by the HCD.
232 */
uhci_async_validate_begin(UHCIState * s)233 static void uhci_async_validate_begin(UHCIState *s)
234 {
235 UHCIQueue *queue;
236
237 QTAILQ_FOREACH(queue, &s->queues, next) {
238 queue->valid--;
239 }
240 }
241
242 /*
243 * Cancel async packets that are no longer valid
244 */
uhci_async_validate_end(UHCIState * s)245 static void uhci_async_validate_end(UHCIState *s)
246 {
247 UHCIQueue *queue, *n;
248
249 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) {
250 if (!queue->valid) {
251 uhci_queue_free(queue, "validate-end");
252 }
253 }
254 }
255
uhci_async_cancel_device(UHCIState * s,USBDevice * dev)256 static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev)
257 {
258 UHCIQueue *queue, *n;
259
260 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) {
261 if (queue->ep->dev == dev) {
262 uhci_queue_free(queue, "cancel-device");
263 }
264 }
265 }
266
uhci_async_cancel_all(UHCIState * s)267 static void uhci_async_cancel_all(UHCIState *s)
268 {
269 UHCIQueue *queue, *nq;
270
271 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, nq) {
272 uhci_queue_free(queue, "cancel-all");
273 }
274 }
275
uhci_async_find_td(UHCIState * s,uint32_t td_addr)276 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t td_addr)
277 {
278 UHCIQueue *queue;
279 UHCIAsync *async;
280
281 QTAILQ_FOREACH(queue, &s->queues, next) {
282 QTAILQ_FOREACH(async, &queue->asyncs, next) {
283 if (async->td_addr == td_addr) {
284 return async;
285 }
286 }
287 }
288 return NULL;
289 }
290
uhci_update_irq(UHCIState * s)291 static void uhci_update_irq(UHCIState *s)
292 {
293 int level = 0;
294 if (((s->status2 & 1) && (s->intr & (1 << 2))) ||
295 ((s->status2 & 2) && (s->intr & (1 << 3))) ||
296 ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) ||
297 ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) ||
298 (s->status & UHCI_STS_HSERR) ||
299 (s->status & UHCI_STS_HCPERR)) {
300 level = 1;
301 }
302 qemu_set_irq(s->irq, level);
303 }
304
uhci_reset(DeviceState * dev)305 static void uhci_reset(DeviceState *dev)
306 {
307 PCIDevice *d = PCI_DEVICE(dev);
308 UHCIState *s = UHCI(d);
309 uint8_t *pci_conf;
310 int i;
311 UHCIPort *port;
312
313 trace_usb_uhci_reset();
314
315 pci_conf = s->dev.config;
316
317 pci_conf[0x6a] = 0x01; /* usb clock */
318 pci_conf[0x6b] = 0x00;
319 s->cmd = 0;
320 s->status = UHCI_STS_HCHALTED;
321 s->status2 = 0;
322 s->intr = 0;
323 s->fl_base_addr = 0;
324 s->sof_timing = 64;
325
326 for (i = 0; i < UHCI_PORTS; i++) {
327 port = &s->ports[i];
328 port->ctrl = 0x0080;
329 if (port->port.dev && port->port.dev->attached) {
330 usb_port_reset(&port->port);
331 }
332 }
333
334 uhci_async_cancel_all(s);
335 qemu_bh_cancel(s->bh);
336 uhci_update_irq(s);
337 }
338
339 static const VMStateDescription vmstate_uhci_port = {
340 .name = "uhci port",
341 .version_id = 1,
342 .minimum_version_id = 1,
343 .fields = (const VMStateField[]) {
344 VMSTATE_UINT16(ctrl, UHCIPort),
345 VMSTATE_END_OF_LIST()
346 }
347 };
348
uhci_post_load(void * opaque,int version_id)349 static int uhci_post_load(void *opaque, int version_id)
350 {
351 UHCIState *s = opaque;
352
353 if (version_id < 2) {
354 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
355 (NANOSECONDS_PER_SECOND / FRAME_TIMER_FREQ);
356 }
357 return 0;
358 }
359
360 static const VMStateDescription vmstate_uhci = {
361 .name = "uhci",
362 .version_id = 3,
363 .minimum_version_id = 1,
364 .post_load = uhci_post_load,
365 .fields = (const VMStateField[]) {
366 VMSTATE_PCI_DEVICE(dev, UHCIState),
367 VMSTATE_UINT8_EQUAL(num_ports_vmstate, UHCIState, NULL),
368 VMSTATE_STRUCT_ARRAY(ports, UHCIState, UHCI_PORTS, 1,
369 vmstate_uhci_port, UHCIPort),
370 VMSTATE_UINT16(cmd, UHCIState),
371 VMSTATE_UINT16(status, UHCIState),
372 VMSTATE_UINT16(intr, UHCIState),
373 VMSTATE_UINT16(frnum, UHCIState),
374 VMSTATE_UINT32(fl_base_addr, UHCIState),
375 VMSTATE_UINT8(sof_timing, UHCIState),
376 VMSTATE_UINT8(status2, UHCIState),
377 VMSTATE_TIMER_PTR(frame_timer, UHCIState),
378 VMSTATE_INT64_V(expire_time, UHCIState, 2),
379 VMSTATE_UINT32_V(pending_int_mask, UHCIState, 3),
380 VMSTATE_END_OF_LIST()
381 }
382 };
383
uhci_port_write(void * opaque,hwaddr addr,uint64_t val,unsigned size)384 static void uhci_port_write(void *opaque, hwaddr addr,
385 uint64_t val, unsigned size)
386 {
387 UHCIState *s = opaque;
388
389 trace_usb_uhci_mmio_writew(addr, val);
390
391 switch (addr) {
392 case UHCI_USBCMD:
393 if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
394 /* start frame processing */
395 trace_usb_uhci_schedule_start();
396 s->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
397 (NANOSECONDS_PER_SECOND / FRAME_TIMER_FREQ);
398 timer_mod(s->frame_timer, s->expire_time);
399 s->status &= ~UHCI_STS_HCHALTED;
400 } else if (!(val & UHCI_CMD_RS)) {
401 s->status |= UHCI_STS_HCHALTED;
402 }
403 if (val & UHCI_CMD_GRESET) {
404 UHCIPort *port;
405 int i;
406
407 /* send reset on the USB bus */
408 for (i = 0; i < UHCI_PORTS; i++) {
409 port = &s->ports[i];
410 usb_device_reset(port->port.dev);
411 }
412 uhci_reset(DEVICE(s));
413 return;
414 }
415 if (val & UHCI_CMD_HCRESET) {
416 uhci_reset(DEVICE(s));
417 return;
418 }
419 s->cmd = val;
420 if (val & UHCI_CMD_EGSM) {
421 if ((s->ports[0].ctrl & UHCI_PORT_RD) ||
422 (s->ports[1].ctrl & UHCI_PORT_RD)) {
423 uhci_resume(s);
424 }
425 }
426 break;
427 case UHCI_USBSTS:
428 s->status &= ~val;
429 /*
430 * XXX: the chip spec is not coherent, so we add a hidden
431 * register to distinguish between IOC and SPD
432 */
433 if (val & UHCI_STS_USBINT) {
434 s->status2 = 0;
435 }
436 uhci_update_irq(s);
437 break;
438 case UHCI_USBINTR:
439 s->intr = val;
440 uhci_update_irq(s);
441 break;
442 case UHCI_USBFRNUM:
443 if (s->status & UHCI_STS_HCHALTED) {
444 s->frnum = val & 0x7ff;
445 }
446 break;
447 case UHCI_USBFLBASEADD:
448 s->fl_base_addr &= 0xffff0000;
449 s->fl_base_addr |= val & ~0xfff;
450 break;
451 case UHCI_USBFLBASEADD + 2:
452 s->fl_base_addr &= 0x0000ffff;
453 s->fl_base_addr |= (val << 16);
454 break;
455 case UHCI_USBSOF:
456 s->sof_timing = val & 0xff;
457 break;
458 case UHCI_USBPORTSC1 ... UHCI_USBPORTSC4:
459 {
460 UHCIPort *port;
461 USBDevice *dev;
462 int n;
463
464 n = (addr >> 1) & 7;
465 if (n >= UHCI_PORTS) {
466 return;
467 }
468 port = &s->ports[n];
469 dev = port->port.dev;
470 if (dev && dev->attached) {
471 /* port reset */
472 if ((val & UHCI_PORT_RESET) &&
473 !(port->ctrl & UHCI_PORT_RESET)) {
474 usb_device_reset(dev);
475 }
476 }
477 port->ctrl &= UHCI_PORT_READ_ONLY;
478 /* enabled may only be set if a device is connected */
479 if (!(port->ctrl & UHCI_PORT_CCS)) {
480 val &= ~UHCI_PORT_EN;
481 }
482 port->ctrl |= (val & ~UHCI_PORT_READ_ONLY);
483 /* some bits are reset when a '1' is written to them */
484 port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR);
485 }
486 break;
487 }
488 }
489
uhci_port_read(void * opaque,hwaddr addr,unsigned size)490 static uint64_t uhci_port_read(void *opaque, hwaddr addr, unsigned size)
491 {
492 UHCIState *s = opaque;
493 uint32_t val;
494
495 switch (addr) {
496 case UHCI_USBCMD:
497 val = s->cmd;
498 break;
499 case UHCI_USBSTS:
500 val = s->status;
501 break;
502 case UHCI_USBINTR:
503 val = s->intr;
504 break;
505 case UHCI_USBFRNUM:
506 val = s->frnum;
507 break;
508 case UHCI_USBFLBASEADD:
509 val = s->fl_base_addr & 0xffff;
510 break;
511 case UHCI_USBFLBASEADD + 2:
512 val = (s->fl_base_addr >> 16) & 0xffff;
513 break;
514 case UHCI_USBSOF:
515 val = s->sof_timing;
516 break;
517 case UHCI_USBPORTSC1 ... UHCI_USBPORTSC4:
518 {
519 UHCIPort *port;
520 int n;
521 n = (addr >> 1) & 7;
522 if (n >= UHCI_PORTS) {
523 goto read_default;
524 }
525 port = &s->ports[n];
526 val = port->ctrl;
527 }
528 break;
529 default:
530 read_default:
531 val = 0xff7f; /* disabled port */
532 break;
533 }
534
535 trace_usb_uhci_mmio_readw(addr, val);
536
537 return val;
538 }
539
540 /* signal resume if controller suspended */
uhci_resume(void * opaque)541 static void uhci_resume(void *opaque)
542 {
543 UHCIState *s = (UHCIState *)opaque;
544
545 if (!s) {
546 return;
547 }
548
549 if (s->cmd & UHCI_CMD_EGSM) {
550 s->cmd |= UHCI_CMD_FGR;
551 s->status |= UHCI_STS_RD;
552 uhci_update_irq(s);
553 }
554 }
555
uhci_attach(USBPort * port1)556 static void uhci_attach(USBPort *port1)
557 {
558 UHCIState *s = port1->opaque;
559 UHCIPort *port = &s->ports[port1->index];
560
561 /* set connect status */
562 port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
563
564 /* update speed */
565 if (port->port.dev->speed == USB_SPEED_LOW) {
566 port->ctrl |= UHCI_PORT_LSDA;
567 } else {
568 port->ctrl &= ~UHCI_PORT_LSDA;
569 }
570
571 uhci_resume(s);
572 }
573
uhci_detach(USBPort * port1)574 static void uhci_detach(USBPort *port1)
575 {
576 UHCIState *s = port1->opaque;
577 UHCIPort *port = &s->ports[port1->index];
578
579 uhci_async_cancel_device(s, port1->dev);
580
581 /* set connect status */
582 if (port->ctrl & UHCI_PORT_CCS) {
583 port->ctrl &= ~UHCI_PORT_CCS;
584 port->ctrl |= UHCI_PORT_CSC;
585 }
586 /* disable port */
587 if (port->ctrl & UHCI_PORT_EN) {
588 port->ctrl &= ~UHCI_PORT_EN;
589 port->ctrl |= UHCI_PORT_ENC;
590 }
591
592 uhci_resume(s);
593 }
594
uhci_child_detach(USBPort * port1,USBDevice * child)595 static void uhci_child_detach(USBPort *port1, USBDevice *child)
596 {
597 UHCIState *s = port1->opaque;
598
599 uhci_async_cancel_device(s, child);
600 }
601
uhci_wakeup(USBPort * port1)602 static void uhci_wakeup(USBPort *port1)
603 {
604 UHCIState *s = port1->opaque;
605 UHCIPort *port = &s->ports[port1->index];
606
607 if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) {
608 port->ctrl |= UHCI_PORT_RD;
609 uhci_resume(s);
610 }
611 }
612
uhci_find_device(UHCIState * s,uint8_t addr)613 static USBDevice *uhci_find_device(UHCIState *s, uint8_t addr)
614 {
615 USBDevice *dev;
616 int i;
617
618 for (i = 0; i < UHCI_PORTS; i++) {
619 UHCIPort *port = &s->ports[i];
620 if (!(port->ctrl & UHCI_PORT_EN)) {
621 continue;
622 }
623 dev = usb_find_device(&port->port, addr);
624 if (dev != NULL) {
625 return dev;
626 }
627 }
628 return NULL;
629 }
630
uhci_read_td(UHCIState * s,UHCI_TD * td,uint32_t link)631 static void uhci_read_td(UHCIState *s, UHCI_TD *td, uint32_t link)
632 {
633 pci_dma_read(&s->dev, link & ~0xf, td, sizeof(*td));
634 le32_to_cpus(&td->link);
635 le32_to_cpus(&td->ctrl);
636 le32_to_cpus(&td->token);
637 le32_to_cpus(&td->buffer);
638 }
639
uhci_handle_td_error(UHCIState * s,UHCI_TD * td,uint32_t td_addr,int status,uint32_t * int_mask)640 static int uhci_handle_td_error(UHCIState *s, UHCI_TD *td, uint32_t td_addr,
641 int status, uint32_t *int_mask)
642 {
643 uint32_t queue_token = uhci_queue_token(td);
644 int ret;
645
646 switch (status) {
647 case USB_RET_NAK:
648 td->ctrl |= TD_CTRL_NAK;
649 return TD_RESULT_NEXT_QH;
650
651 case USB_RET_STALL:
652 td->ctrl |= TD_CTRL_STALL;
653 trace_usb_uhci_packet_complete_stall(queue_token, td_addr);
654 ret = TD_RESULT_NEXT_QH;
655 break;
656
657 case USB_RET_BABBLE:
658 td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
659 /* frame interrupted */
660 trace_usb_uhci_packet_complete_babble(queue_token, td_addr);
661 ret = TD_RESULT_STOP_FRAME;
662 break;
663
664 case USB_RET_IOERROR:
665 case USB_RET_NODEV:
666 default:
667 td->ctrl |= TD_CTRL_TIMEOUT;
668 td->ctrl &= ~(3 << TD_CTRL_ERROR_SHIFT);
669 trace_usb_uhci_packet_complete_error(queue_token, td_addr);
670 ret = TD_RESULT_NEXT_QH;
671 break;
672 }
673
674 td->ctrl &= ~TD_CTRL_ACTIVE;
675 s->status |= UHCI_STS_USBERR;
676 if (td->ctrl & TD_CTRL_IOC) {
677 *int_mask |= 0x01;
678 }
679 uhci_update_irq(s);
680 return ret;
681 }
682
uhci_complete_td(UHCIState * s,UHCI_TD * td,UHCIAsync * async,uint32_t * int_mask)683 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async,
684 uint32_t *int_mask)
685 {
686 int len = 0, max_len;
687 uint8_t pid;
688
689 max_len = ((td->token >> 21) + 1) & 0x7ff;
690 pid = td->token & 0xff;
691
692 if (td->ctrl & TD_CTRL_IOS) {
693 td->ctrl &= ~TD_CTRL_ACTIVE;
694 }
695
696 if (async->packet.status != USB_RET_SUCCESS) {
697 return uhci_handle_td_error(s, td, async->td_addr,
698 async->packet.status, int_mask);
699 }
700
701 len = async->packet.actual_length;
702 td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff);
703
704 /*
705 * The NAK bit may have been set by a previous frame, so clear it
706 * here. The docs are somewhat unclear, but win2k relies on this
707 * behavior.
708 */
709 td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK);
710 if (td->ctrl & TD_CTRL_IOC) {
711 *int_mask |= 0x01;
712 }
713
714 if (pid == USB_TOKEN_IN) {
715 pci_dma_write(&s->dev, td->buffer, async->buf, len);
716 if ((td->ctrl & TD_CTRL_SPD) && len < max_len) {
717 *int_mask |= 0x02;
718 /* short packet: do not update QH */
719 trace_usb_uhci_packet_complete_shortxfer(async->queue->token,
720 async->td_addr);
721 return TD_RESULT_NEXT_QH;
722 }
723 }
724
725 /* success */
726 trace_usb_uhci_packet_complete_success(async->queue->token,
727 async->td_addr);
728 return TD_RESULT_COMPLETE;
729 }
730
uhci_handle_td(UHCIState * s,UHCIQueue * q,uint32_t qh_addr,UHCI_TD * td,uint32_t td_addr,uint32_t * int_mask)731 static int uhci_handle_td(UHCIState *s, UHCIQueue *q, uint32_t qh_addr,
732 UHCI_TD *td, uint32_t td_addr, uint32_t *int_mask)
733 {
734 int ret, max_len;
735 bool spd;
736 bool queuing = (q != NULL);
737 uint8_t pid = td->token & 0xff;
738 uint8_t ep_id = (td->token >> 15) & 0xf;
739 UHCIAsync *async;
740
741 async = uhci_async_find_td(s, td_addr);
742 if (async) {
743 if (uhci_queue_verify(async->queue, qh_addr, td, td_addr, queuing)) {
744 assert(q == NULL || q == async->queue);
745 q = async->queue;
746 } else {
747 uhci_queue_free(async->queue, "guest re-used pending td");
748 async = NULL;
749 }
750 }
751
752 if (q == NULL) {
753 q = uhci_queue_find(s, td);
754 if (q && !uhci_queue_verify(q, qh_addr, td, td_addr, queuing)) {
755 uhci_queue_free(q, "guest re-used qh");
756 q = NULL;
757 }
758 }
759
760 if (q) {
761 q->valid = QH_VALID;
762 }
763
764 /* Is active ? */
765 if (!(td->ctrl & TD_CTRL_ACTIVE)) {
766 if (async) {
767 /* Guest marked a pending td non-active, cancel the queue */
768 uhci_queue_free(async->queue, "pending td non-active");
769 }
770 /*
771 * ehci11d spec page 22: "Even if the Active bit in the TD is already
772 * cleared when the TD is fetched ... an IOC interrupt is generated"
773 */
774 if (td->ctrl & TD_CTRL_IOC) {
775 *int_mask |= 0x01;
776 }
777 return TD_RESULT_NEXT_QH;
778 }
779
780 switch (pid) {
781 case USB_TOKEN_OUT:
782 case USB_TOKEN_IN:
783 break;
784 case USB_TOKEN_SETUP:
785 /* SETUP is only valid to endpoint 0 */
786 if (ep_id == 0) {
787 break;
788 }
789 /* fallthrough */
790 default:
791 /* invalid pid : frame interrupted */
792 s->status |= UHCI_STS_HCPERR;
793 s->cmd &= ~UHCI_CMD_RS;
794 uhci_update_irq(s);
795 return TD_RESULT_STOP_FRAME;
796 }
797
798 if (async) {
799 if (queuing) {
800 /*
801 * we are busy filling the queue, we are not prepared
802 * to consume completed packages then, just leave them
803 * in async state
804 */
805 return TD_RESULT_ASYNC_CONT;
806 }
807 if (!async->done) {
808 UHCI_TD last_td;
809 UHCIAsync *last = QTAILQ_LAST(&async->queue->asyncs);
810 /*
811 * While we are waiting for the current td to complete, the guest
812 * may have added more tds to the queue. Note we re-read the td
813 * rather then caching it, as we want to see guest made changes!
814 */
815 uhci_read_td(s, &last_td, last->td_addr);
816 uhci_queue_fill(async->queue, &last_td);
817
818 return TD_RESULT_ASYNC_CONT;
819 }
820 uhci_async_unlink(async);
821 goto done;
822 }
823
824 if (s->completions_only) {
825 return TD_RESULT_ASYNC_CONT;
826 }
827
828 /* Allocate new packet */
829 if (q == NULL) {
830 USBDevice *dev;
831 USBEndpoint *ep;
832
833 dev = uhci_find_device(s, (td->token >> 8) & 0x7f);
834 if (dev == NULL) {
835 return uhci_handle_td_error(s, td, td_addr, USB_RET_NODEV,
836 int_mask);
837 }
838 ep = usb_ep_get(dev, pid, ep_id);
839 q = uhci_queue_new(s, qh_addr, td, ep);
840 }
841 async = uhci_async_alloc(q, td_addr);
842
843 max_len = ((td->token >> 21) + 1) & 0x7ff;
844 spd = (pid == USB_TOKEN_IN && (td->ctrl & TD_CTRL_SPD) != 0);
845 usb_packet_setup(&async->packet, pid, q->ep, 0, td_addr, spd,
846 (td->ctrl & TD_CTRL_IOC) != 0);
847 if (max_len <= sizeof(async->static_buf)) {
848 async->buf = async->static_buf;
849 } else {
850 async->buf = g_malloc(max_len);
851 }
852 usb_packet_addbuf(&async->packet, async->buf, max_len);
853
854 switch (pid) {
855 case USB_TOKEN_OUT:
856 case USB_TOKEN_SETUP:
857 pci_dma_read(&s->dev, td->buffer, async->buf, max_len);
858 usb_handle_packet(q->ep->dev, &async->packet);
859 if (async->packet.status == USB_RET_SUCCESS) {
860 async->packet.actual_length = max_len;
861 }
862 break;
863
864 case USB_TOKEN_IN:
865 usb_handle_packet(q->ep->dev, &async->packet);
866 break;
867
868 default:
869 abort(); /* Never to execute */
870 }
871
872 if (async->packet.status == USB_RET_ASYNC) {
873 uhci_async_link(async);
874 if (!queuing) {
875 uhci_queue_fill(q, td);
876 }
877 return TD_RESULT_ASYNC_START;
878 }
879
880 done:
881 ret = uhci_complete_td(s, td, async, int_mask);
882 uhci_async_free(async);
883 return ret;
884 }
885
uhci_async_complete(USBPort * port,USBPacket * packet)886 static void uhci_async_complete(USBPort *port, USBPacket *packet)
887 {
888 UHCIAsync *async = container_of(packet, UHCIAsync, packet);
889 UHCIState *s = async->queue->uhci;
890
891 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) {
892 uhci_async_cancel(async);
893 return;
894 }
895
896 async->done = 1;
897 /* Force processing of this packet *now*, needed for migration */
898 s->completions_only = true;
899 qemu_bh_schedule(s->bh);
900 }
901
is_valid(uint32_t link)902 static int is_valid(uint32_t link)
903 {
904 return (link & 1) == 0;
905 }
906
is_qh(uint32_t link)907 static int is_qh(uint32_t link)
908 {
909 return (link & 2) != 0;
910 }
911
depth_first(uint32_t link)912 static int depth_first(uint32_t link)
913 {
914 return (link & 4) != 0;
915 }
916
917 /* QH DB used for detecting QH loops */
918 #define UHCI_MAX_QUEUES 128
919 typedef struct {
920 uint32_t addr[UHCI_MAX_QUEUES];
921 int count;
922 } QhDb;
923
qhdb_reset(QhDb * db)924 static void qhdb_reset(QhDb *db)
925 {
926 db->count = 0;
927 }
928
929 /* Add QH to DB. Returns 1 if already present or DB is full. */
qhdb_insert(QhDb * db,uint32_t addr)930 static int qhdb_insert(QhDb *db, uint32_t addr)
931 {
932 int i;
933 for (i = 0; i < db->count; i++) {
934 if (db->addr[i] == addr) {
935 return 1;
936 }
937 }
938
939 if (db->count >= UHCI_MAX_QUEUES) {
940 return 1;
941 }
942
943 db->addr[db->count++] = addr;
944 return 0;
945 }
946
uhci_queue_fill(UHCIQueue * q,UHCI_TD * td)947 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td)
948 {
949 uint32_t int_mask = 0;
950 uint32_t plink = td->link;
951 UHCI_TD ptd;
952 int ret;
953
954 while (is_valid(plink)) {
955 uhci_read_td(q->uhci, &ptd, plink);
956 if (!(ptd.ctrl & TD_CTRL_ACTIVE)) {
957 break;
958 }
959 if (uhci_queue_token(&ptd) != q->token) {
960 break;
961 }
962 trace_usb_uhci_td_queue(plink & ~0xf, ptd.ctrl, ptd.token);
963 ret = uhci_handle_td(q->uhci, q, q->qh_addr, &ptd, plink, &int_mask);
964 if (ret == TD_RESULT_ASYNC_CONT) {
965 break;
966 }
967 assert(ret == TD_RESULT_ASYNC_START);
968 assert(int_mask == 0);
969 plink = ptd.link;
970 }
971 usb_device_flush_ep_queue(q->ep->dev, q->ep);
972 }
973
uhci_process_frame(UHCIState * s)974 static void uhci_process_frame(UHCIState *s)
975 {
976 uint32_t frame_addr, link, old_td_ctrl, val, int_mask;
977 uint32_t curr_qh, td_count = 0;
978 int cnt, ret;
979 UHCI_TD td;
980 UHCI_QH qh;
981 QhDb qhdb;
982
983 frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);
984
985 pci_dma_read(&s->dev, frame_addr, &link, 4);
986 le32_to_cpus(&link);
987
988 int_mask = 0;
989 curr_qh = 0;
990
991 qhdb_reset(&qhdb);
992
993 for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
994 if (!s->completions_only && s->frame_bytes >= s->frame_bandwidth) {
995 /*
996 * We've reached the usb 1.1 bandwidth, which is
997 * 1280 bytes/frame, stop processing
998 */
999 trace_usb_uhci_frame_stop_bandwidth();
1000 break;
1001 }
1002 if (is_qh(link)) {
1003 /* QH */
1004 trace_usb_uhci_qh_load(link & ~0xf);
1005
1006 if (qhdb_insert(&qhdb, link)) {
1007 /*
1008 * We're going in circles. Which is not a bug because
1009 * HCD is allowed to do that as part of the BW management.
1010 *
1011 * Stop processing here if no transaction has been done
1012 * since we've been here last time.
1013 */
1014 if (td_count == 0) {
1015 trace_usb_uhci_frame_loop_stop_idle();
1016 break;
1017 } else {
1018 trace_usb_uhci_frame_loop_continue();
1019 td_count = 0;
1020 qhdb_reset(&qhdb);
1021 qhdb_insert(&qhdb, link);
1022 }
1023 }
1024
1025 pci_dma_read(&s->dev, link & ~0xf, &qh, sizeof(qh));
1026 le32_to_cpus(&qh.link);
1027 le32_to_cpus(&qh.el_link);
1028
1029 if (!is_valid(qh.el_link)) {
1030 /* QH w/o elements */
1031 curr_qh = 0;
1032 link = qh.link;
1033 } else {
1034 /* QH with elements */
1035 curr_qh = link;
1036 link = qh.el_link;
1037 }
1038 continue;
1039 }
1040
1041 /* TD */
1042 uhci_read_td(s, &td, link);
1043 trace_usb_uhci_td_load(curr_qh & ~0xf, link & ~0xf, td.ctrl, td.token);
1044
1045 old_td_ctrl = td.ctrl;
1046 ret = uhci_handle_td(s, NULL, curr_qh, &td, link, &int_mask);
1047 if (old_td_ctrl != td.ctrl) {
1048 /* update the status bits of the TD */
1049 val = cpu_to_le32(td.ctrl);
1050 pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val));
1051 }
1052
1053 switch (ret) {
1054 case TD_RESULT_STOP_FRAME: /* interrupted frame */
1055 goto out;
1056
1057 case TD_RESULT_NEXT_QH:
1058 case TD_RESULT_ASYNC_CONT:
1059 trace_usb_uhci_td_nextqh(curr_qh & ~0xf, link & ~0xf);
1060 link = curr_qh ? qh.link : td.link;
1061 continue;
1062
1063 case TD_RESULT_ASYNC_START:
1064 trace_usb_uhci_td_async(curr_qh & ~0xf, link & ~0xf);
1065 link = curr_qh ? qh.link : td.link;
1066 continue;
1067
1068 case TD_RESULT_COMPLETE:
1069 trace_usb_uhci_td_complete(curr_qh & ~0xf, link & ~0xf);
1070 link = td.link;
1071 td_count++;
1072 s->frame_bytes += (td.ctrl & 0x7ff) + 1;
1073
1074 if (curr_qh) {
1075 /* update QH element link */
1076 qh.el_link = link;
1077 val = cpu_to_le32(qh.el_link);
1078 pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4, &val, sizeof(val));
1079
1080 if (!depth_first(link)) {
1081 /* done with this QH */
1082 curr_qh = 0;
1083 link = qh.link;
1084 }
1085 }
1086 break;
1087
1088 default:
1089 assert(!"unknown return code");
1090 }
1091
1092 /* go to the next entry */
1093 }
1094
1095 out:
1096 s->pending_int_mask |= int_mask;
1097 }
1098
uhci_bh(void * opaque)1099 static void uhci_bh(void *opaque)
1100 {
1101 UHCIState *s = opaque;
1102 uhci_process_frame(s);
1103 }
1104
uhci_frame_timer(void * opaque)1105 static void uhci_frame_timer(void *opaque)
1106 {
1107 UHCIState *s = opaque;
1108 uint64_t t_now, t_last_run;
1109 int i, frames;
1110 const uint64_t frame_t = NANOSECONDS_PER_SECOND / FRAME_TIMER_FREQ;
1111
1112 s->completions_only = false;
1113 qemu_bh_cancel(s->bh);
1114
1115 if (!(s->cmd & UHCI_CMD_RS)) {
1116 /* Full stop */
1117 trace_usb_uhci_schedule_stop();
1118 timer_del(s->frame_timer);
1119 uhci_async_cancel_all(s);
1120 /* set hchalted bit in status - UHCI11D 2.1.2 */
1121 s->status |= UHCI_STS_HCHALTED;
1122 return;
1123 }
1124
1125 /* We still store expire_time in our state, for migration */
1126 t_last_run = s->expire_time - frame_t;
1127 t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1128
1129 /* Process up to MAX_FRAMES_PER_TICK frames */
1130 frames = (t_now - t_last_run) / frame_t;
1131 if (frames > s->maxframes) {
1132 int skipped = frames - s->maxframes;
1133 s->expire_time += skipped * frame_t;
1134 s->frnum = (s->frnum + skipped) & 0x7ff;
1135 frames -= skipped;
1136 }
1137 if (frames > MAX_FRAMES_PER_TICK) {
1138 frames = MAX_FRAMES_PER_TICK;
1139 }
1140
1141 for (i = 0; i < frames; i++) {
1142 s->frame_bytes = 0;
1143 trace_usb_uhci_frame_start(s->frnum);
1144 uhci_async_validate_begin(s);
1145 uhci_process_frame(s);
1146 uhci_async_validate_end(s);
1147 /*
1148 * The spec says frnum is the frame currently being processed, and
1149 * the guest must look at frnum - 1 on interrupt, so inc frnum now
1150 */
1151 s->frnum = (s->frnum + 1) & 0x7ff;
1152 s->expire_time += frame_t;
1153 }
1154
1155 /* Complete the previous frame(s) */
1156 if (s->pending_int_mask) {
1157 s->status2 |= s->pending_int_mask;
1158 s->status |= UHCI_STS_USBINT;
1159 uhci_update_irq(s);
1160 }
1161 s->pending_int_mask = 0;
1162
1163 timer_mod(s->frame_timer, t_now + frame_t);
1164 }
1165
1166 static const MemoryRegionOps uhci_ioport_ops = {
1167 .read = uhci_port_read,
1168 .write = uhci_port_write,
1169 .valid.min_access_size = 1,
1170 .valid.max_access_size = 4,
1171 .impl.min_access_size = 2,
1172 .impl.max_access_size = 2,
1173 .endianness = DEVICE_LITTLE_ENDIAN,
1174 };
1175
1176 static USBPortOps uhci_port_ops = {
1177 .attach = uhci_attach,
1178 .detach = uhci_detach,
1179 .child_detach = uhci_child_detach,
1180 .wakeup = uhci_wakeup,
1181 .complete = uhci_async_complete,
1182 };
1183
1184 static USBBusOps uhci_bus_ops = {
1185 };
1186
usb_uhci_common_realize(PCIDevice * dev,Error ** errp)1187 void usb_uhci_common_realize(PCIDevice *dev, Error **errp)
1188 {
1189 Error *err = NULL;
1190 UHCIPCIDeviceClass *u = UHCI_GET_CLASS(dev);
1191 UHCIState *s = UHCI(dev);
1192 uint8_t *pci_conf = s->dev.config;
1193 int i;
1194
1195 pci_conf[PCI_CLASS_PROG] = 0x00;
1196 /* TODO: reset value should be 0. */
1197 pci_conf[USB_SBRN] = USB_RELEASE_1; /* release number */
1198 pci_config_set_interrupt_pin(pci_conf, u->info.irq_pin + 1);
1199 s->irq = pci_allocate_irq(dev);
1200
1201 if (s->masterbus) {
1202 USBPort *ports[UHCI_PORTS];
1203 for (i = 0; i < UHCI_PORTS; i++) {
1204 ports[i] = &s->ports[i].port;
1205 }
1206 usb_register_companion(s->masterbus, ports, UHCI_PORTS,
1207 s->firstport, s, &uhci_port_ops,
1208 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL,
1209 &err);
1210 if (err) {
1211 error_propagate(errp, err);
1212 return;
1213 }
1214 } else {
1215 usb_bus_new(&s->bus, sizeof(s->bus), &uhci_bus_ops, DEVICE(dev));
1216 for (i = 0; i < UHCI_PORTS; i++) {
1217 usb_register_port(&s->bus, &s->ports[i].port, s, i, &uhci_port_ops,
1218 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
1219 }
1220 }
1221 s->bh = qemu_bh_new_guarded(uhci_bh, s, &DEVICE(dev)->mem_reentrancy_guard);
1222 s->frame_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, uhci_frame_timer, s);
1223 s->num_ports_vmstate = UHCI_PORTS;
1224 QTAILQ_INIT(&s->queues);
1225
1226 memory_region_init_io(&s->io_bar, OBJECT(s), &uhci_ioport_ops, s,
1227 "uhci", 0x20);
1228
1229 /*
1230 * Use region 4 for consistency with real hardware. BSD guests seem
1231 * to rely on this.
1232 */
1233 pci_register_bar(&s->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
1234 }
1235
usb_uhci_exit(PCIDevice * dev)1236 static void usb_uhci_exit(PCIDevice *dev)
1237 {
1238 UHCIState *s = UHCI(dev);
1239
1240 trace_usb_uhci_exit();
1241
1242 if (s->frame_timer) {
1243 timer_free(s->frame_timer);
1244 s->frame_timer = NULL;
1245 }
1246
1247 if (s->bh) {
1248 qemu_bh_delete(s->bh);
1249 }
1250
1251 uhci_async_cancel_all(s);
1252
1253 if (!s->masterbus) {
1254 usb_bus_release(&s->bus);
1255 }
1256 }
1257
1258 static const Property uhci_properties_companion[] = {
1259 DEFINE_PROP_STRING("masterbus", UHCIState, masterbus),
1260 DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0),
1261 DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280),
1262 DEFINE_PROP_UINT32("maxframes", UHCIState, maxframes, 128),
1263 };
1264 static const Property uhci_properties_standalone[] = {
1265 DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280),
1266 DEFINE_PROP_UINT32("maxframes", UHCIState, maxframes, 128),
1267 };
1268
uhci_class_init(ObjectClass * klass,const void * data)1269 static void uhci_class_init(ObjectClass *klass, const void *data)
1270 {
1271 DeviceClass *dc = DEVICE_CLASS(klass);
1272 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1273
1274 k->class_id = PCI_CLASS_SERIAL_USB;
1275 dc->vmsd = &vmstate_uhci;
1276 device_class_set_legacy_reset(dc, uhci_reset);
1277 set_bit(DEVICE_CATEGORY_USB, dc->categories);
1278 }
1279
1280 static const TypeInfo uhci_pci_type_info = {
1281 .name = TYPE_UHCI,
1282 .parent = TYPE_PCI_DEVICE,
1283 .instance_size = sizeof(UHCIState),
1284 .class_size = sizeof(UHCIPCIDeviceClass),
1285 .abstract = true,
1286 .class_init = uhci_class_init,
1287 .interfaces = (const InterfaceInfo[]) {
1288 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1289 { },
1290 },
1291 };
1292
uhci_data_class_init(ObjectClass * klass,const void * data)1293 void uhci_data_class_init(ObjectClass *klass, const void *data)
1294 {
1295 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1296 DeviceClass *dc = DEVICE_CLASS(klass);
1297 UHCIPCIDeviceClass *u = UHCI_CLASS(klass);
1298 const UHCIInfo *info = data;
1299
1300 k->realize = info->realize ? info->realize : usb_uhci_common_realize;
1301 k->exit = info->unplug ? usb_uhci_exit : NULL;
1302 k->vendor_id = info->vendor_id;
1303 k->device_id = info->device_id;
1304 k->revision = info->revision;
1305 if (!info->unplug) {
1306 /* uhci controllers in companion setups can't be hotplugged */
1307 dc->hotpluggable = false;
1308 device_class_set_props(dc, uhci_properties_companion);
1309 } else {
1310 device_class_set_props(dc, uhci_properties_standalone);
1311 }
1312 if (info->notuser) {
1313 dc->user_creatable = false;
1314 }
1315 u->info = *info;
1316 }
1317
1318 static UHCIInfo uhci_info[] = {
1319 {
1320 .name = TYPE_PIIX3_USB_UHCI,
1321 .vendor_id = PCI_VENDOR_ID_INTEL,
1322 .device_id = PCI_DEVICE_ID_INTEL_82371SB_2,
1323 .revision = 0x01,
1324 .irq_pin = 3,
1325 .unplug = true,
1326 },{
1327 .name = TYPE_PIIX4_USB_UHCI,
1328 .vendor_id = PCI_VENDOR_ID_INTEL,
1329 .device_id = PCI_DEVICE_ID_INTEL_82371AB_2,
1330 .revision = 0x01,
1331 .irq_pin = 3,
1332 .unplug = true,
1333 },{
1334 .name = TYPE_ICH9_USB_UHCI(1), /* 00:1d.0 */
1335 .vendor_id = PCI_VENDOR_ID_INTEL,
1336 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI1,
1337 .revision = 0x03,
1338 .irq_pin = 0,
1339 .unplug = false,
1340 },{
1341 .name = TYPE_ICH9_USB_UHCI(2), /* 00:1d.1 */
1342 .vendor_id = PCI_VENDOR_ID_INTEL,
1343 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI2,
1344 .revision = 0x03,
1345 .irq_pin = 1,
1346 .unplug = false,
1347 },{
1348 .name = TYPE_ICH9_USB_UHCI(3), /* 00:1d.2 */
1349 .vendor_id = PCI_VENDOR_ID_INTEL,
1350 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI3,
1351 .revision = 0x03,
1352 .irq_pin = 2,
1353 .unplug = false,
1354 },{
1355 .name = TYPE_ICH9_USB_UHCI(4), /* 00:1a.0 */
1356 .vendor_id = PCI_VENDOR_ID_INTEL,
1357 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI4,
1358 .revision = 0x03,
1359 .irq_pin = 0,
1360 .unplug = false,
1361 },{
1362 .name = TYPE_ICH9_USB_UHCI(5), /* 00:1a.1 */
1363 .vendor_id = PCI_VENDOR_ID_INTEL,
1364 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI5,
1365 .revision = 0x03,
1366 .irq_pin = 1,
1367 .unplug = false,
1368 },{
1369 .name = TYPE_ICH9_USB_UHCI(6), /* 00:1a.2 */
1370 .vendor_id = PCI_VENDOR_ID_INTEL,
1371 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI6,
1372 .revision = 0x03,
1373 .irq_pin = 2,
1374 .unplug = false,
1375 }
1376 };
1377
uhci_register_types(void)1378 static void uhci_register_types(void)
1379 {
1380 TypeInfo uhci_type_info = {
1381 .parent = TYPE_UHCI,
1382 .class_init = uhci_data_class_init,
1383 };
1384 int i;
1385
1386 type_register_static(&uhci_pci_type_info);
1387
1388 for (i = 0; i < ARRAY_SIZE(uhci_info); i++) {
1389 uhci_type_info.name = uhci_info[i].name;
1390 uhci_type_info.class_data = uhci_info + i;
1391 type_register_static(&uhci_type_info);
1392 }
1393 }
1394
1395 type_init(uhci_register_types)
1396