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vmport: QOM'ify
[qemu/ar7.git] / hw / usb / hcd-uhci.c
blobf8c42864d14acf8f8b0f7f5027762fc34807d116
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 #include "hw/hw.h"
29 #include "hw/usb.h"
30 #include "hw/pci/pci.h"
31 #include "qemu/timer.h"
32 #include "qemu/iov.h"
33 #include "sysemu/dma.h"
34 #include "trace.h"
35
36 //#define DEBUG
37 //#define DEBUG_DUMP_DATA
38
39 #define UHCI_CMD_FGR (1 << 4)
40 #define UHCI_CMD_EGSM (1 << 3)
41 #define UHCI_CMD_GRESET (1 << 2)
42 #define UHCI_CMD_HCRESET (1 << 1)
43 #define UHCI_CMD_RS (1 << 0)
44
45 #define UHCI_STS_HCHALTED (1 << 5)
46 #define UHCI_STS_HCPERR (1 << 4)
47 #define UHCI_STS_HSERR (1 << 3)
48 #define UHCI_STS_RD (1 << 2)
49 #define UHCI_STS_USBERR (1 << 1)
50 #define UHCI_STS_USBINT (1 << 0)
51
52 #define TD_CTRL_SPD (1 << 29)
53 #define TD_CTRL_ERROR_SHIFT 27
54 #define TD_CTRL_IOS (1 << 25)
55 #define TD_CTRL_IOC (1 << 24)
56 #define TD_CTRL_ACTIVE (1 << 23)
57 #define TD_CTRL_STALL (1 << 22)
58 #define TD_CTRL_BABBLE (1 << 20)
59 #define TD_CTRL_NAK (1 << 19)
60 #define TD_CTRL_TIMEOUT (1 << 18)
61
62 #define UHCI_PORT_SUSPEND (1 << 12)
63 #define UHCI_PORT_RESET (1 << 9)
64 #define UHCI_PORT_LSDA (1 << 8)
65 #define UHCI_PORT_RD (1 << 6)
66 #define UHCI_PORT_ENC (1 << 3)
67 #define UHCI_PORT_EN (1 << 2)
68 #define UHCI_PORT_CSC (1 << 1)
69 #define UHCI_PORT_CCS (1 << 0)
70
71 #define UHCI_PORT_READ_ONLY (0x1bb)
72 #define UHCI_PORT_WRITE_CLEAR (UHCI_PORT_CSC | UHCI_PORT_ENC)
73
74 #define FRAME_TIMER_FREQ 1000
75
76 #define FRAME_MAX_LOOPS 256
77
78 /* Must be large enough to handle 10 frame delay for initial isoc requests */
79 #define QH_VALID 32
80
81 #define MAX_FRAMES_PER_TICK (QH_VALID / 2)
82
83 #define NB_PORTS 2
84
85 enum {
86 TD_RESULT_STOP_FRAME = 10,
87 TD_RESULT_COMPLETE,
88 TD_RESULT_NEXT_QH,
89 TD_RESULT_ASYNC_START,
90 TD_RESULT_ASYNC_CONT,
91 };
92
93 typedef struct UHCIState UHCIState;
94 typedef struct UHCIAsync UHCIAsync;
95 typedef struct UHCIQueue UHCIQueue;
96 typedef struct UHCIInfo UHCIInfo;
97 typedef struct UHCIPCIDeviceClass UHCIPCIDeviceClass;
98
99 struct UHCIInfo {
100 const char *name;
101 uint16_t vendor_id;
102 uint16_t device_id;
103 uint8_t revision;
104 uint8_t irq_pin;
105 int (*initfn)(PCIDevice *dev);
106 bool unplug;
107 };
108
109 struct UHCIPCIDeviceClass {
110 PCIDeviceClass parent_class;
111 UHCIInfo info;
112 };
113
114 /*
115 * Pending async transaction.
116 * 'packet' must be the first field because completion
117 * handler does "(UHCIAsync *) pkt" cast.
118 */
119
120 struct UHCIAsync {
121 USBPacket packet;
122 QEMUSGList sgl;
123 UHCIQueue *queue;
124 QTAILQ_ENTRY(UHCIAsync) next;
125 uint32_t td_addr;
126 uint8_t done;
127 };
128
129 struct UHCIQueue {
130 uint32_t qh_addr;
131 uint32_t token;
132 UHCIState *uhci;
133 USBEndpoint *ep;
134 QTAILQ_ENTRY(UHCIQueue) next;
135 QTAILQ_HEAD(asyncs_head, UHCIAsync) asyncs;
136 int8_t valid;
137 };
138
139 typedef struct UHCIPort {
140 USBPort port;
141 uint16_t ctrl;
142 } UHCIPort;
143
144 struct UHCIState {
145 PCIDevice dev;
146 MemoryRegion io_bar;
147 USBBus bus; /* Note unused when we're a companion controller */
148 uint16_t cmd; /* cmd register */
149 uint16_t status;
150 uint16_t intr; /* interrupt enable register */
151 uint16_t frnum; /* frame number */
152 uint32_t fl_base_addr; /* frame list base address */
153 uint8_t sof_timing;
154 uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */
155 int64_t expire_time;
156 QEMUTimer *frame_timer;
157 QEMUBH *bh;
158 uint32_t frame_bytes;
159 uint32_t frame_bandwidth;
160 bool completions_only;
161 UHCIPort ports[NB_PORTS];
162
163 /* Interrupts that should be raised at the end of the current frame. */
164 uint32_t pending_int_mask;
165 int irq_pin;
166
167 /* Active packets */
168 QTAILQ_HEAD(, UHCIQueue) queues;
169 uint8_t num_ports_vmstate;
170
171 /* Properties */
172 char *masterbus;
173 uint32_t firstport;
174 uint32_t maxframes;
175 };
176
177 typedef struct UHCI_TD {
178 uint32_t link;
179 uint32_t ctrl; /* see TD_CTRL_xxx */
180 uint32_t token;
181 uint32_t buffer;
182 } UHCI_TD;
183
184 typedef struct UHCI_QH {
185 uint32_t link;
186 uint32_t el_link;
187 } UHCI_QH;
188
189 static void uhci_async_cancel(UHCIAsync *async);
190 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td);
191
192 static inline int32_t uhci_queue_token(UHCI_TD *td)
193 {
194 if ((td->token & (0xf << 15)) == 0) {
195 /* ctrl ep, cover ep and dev, not pid! */
196 return td->token & 0x7ff00;
197 } else {
198 /* covers ep, dev, pid -> identifies the endpoint */
199 return td->token & 0x7ffff;
200 }
201 }
202
203 static UHCIQueue *uhci_queue_new(UHCIState *s, uint32_t qh_addr, UHCI_TD *td,
204 USBEndpoint *ep)
205 {
206 UHCIQueue *queue;
207
208 queue = g_new0(UHCIQueue, 1);
209 queue->uhci = s;
210 queue->qh_addr = qh_addr;
211 queue->token = uhci_queue_token(td);
212 queue->ep = ep;
213 QTAILQ_INIT(&queue->asyncs);
214 QTAILQ_INSERT_HEAD(&s->queues, queue, next);
215 queue->valid = QH_VALID;
216 trace_usb_uhci_queue_add(queue->token);
217 return queue;
218 }
219
220 static void uhci_queue_free(UHCIQueue *queue, const char *reason)
221 {
222 UHCIState *s = queue->uhci;
223 UHCIAsync *async;
224
225 while (!QTAILQ_EMPTY(&queue->asyncs)) {
226 async = QTAILQ_FIRST(&queue->asyncs);
227 uhci_async_cancel(async);
228 }
229 usb_device_ep_stopped(queue->ep->dev, queue->ep);
230
231 trace_usb_uhci_queue_del(queue->token, reason);
232 QTAILQ_REMOVE(&s->queues, queue, next);
233 g_free(queue);
234 }
235
236 static UHCIQueue *uhci_queue_find(UHCIState *s, UHCI_TD *td)
237 {
238 uint32_t token = uhci_queue_token(td);
239 UHCIQueue *queue;
240
241 QTAILQ_FOREACH(queue, &s->queues, next) {
242 if (queue->token == token) {
243 return queue;
244 }
245 }
246 return NULL;
247 }
248
249 static bool uhci_queue_verify(UHCIQueue *queue, uint32_t qh_addr, UHCI_TD *td,
250 uint32_t td_addr, bool queuing)
251 {
252 UHCIAsync *first = QTAILQ_FIRST(&queue->asyncs);
253
254 return queue->qh_addr == qh_addr &&
255 queue->token == uhci_queue_token(td) &&
256 (queuing || !(td->ctrl & TD_CTRL_ACTIVE) || first == NULL ||
257 first->td_addr == td_addr);
258 }
259
260 static UHCIAsync *uhci_async_alloc(UHCIQueue *queue, uint32_t td_addr)
261 {
262 UHCIAsync *async = g_new0(UHCIAsync, 1);
263
264 async->queue = queue;
265 async->td_addr = td_addr;
266 usb_packet_init(&async->packet);
267 pci_dma_sglist_init(&async->sgl, &queue->uhci->dev, 1);
268 trace_usb_uhci_packet_add(async->queue->token, async->td_addr);
269
270 return async;
271 }
272
273 static void uhci_async_free(UHCIAsync *async)
274 {
275 trace_usb_uhci_packet_del(async->queue->token, async->td_addr);
276 usb_packet_cleanup(&async->packet);
277 qemu_sglist_destroy(&async->sgl);
278 g_free(async);
279 }
280
281 static void uhci_async_link(UHCIAsync *async)
282 {
283 UHCIQueue *queue = async->queue;
284 QTAILQ_INSERT_TAIL(&queue->asyncs, async, next);
285 trace_usb_uhci_packet_link_async(async->queue->token, async->td_addr);
286 }
287
288 static void uhci_async_unlink(UHCIAsync *async)
289 {
290 UHCIQueue *queue = async->queue;
291 QTAILQ_REMOVE(&queue->asyncs, async, next);
292 trace_usb_uhci_packet_unlink_async(async->queue->token, async->td_addr);
293 }
294
295 static void uhci_async_cancel(UHCIAsync *async)
296 {
297 uhci_async_unlink(async);
298 trace_usb_uhci_packet_cancel(async->queue->token, async->td_addr,
299 async->done);
300 if (!async->done)
301 usb_cancel_packet(&async->packet);
302 usb_packet_unmap(&async->packet, &async->sgl);
303 uhci_async_free(async);
304 }
305
306 /*
307 * Mark all outstanding async packets as invalid.
308 * This is used for canceling them when TDs are removed by the HCD.
309 */
310 static void uhci_async_validate_begin(UHCIState *s)
311 {
312 UHCIQueue *queue;
313
314 QTAILQ_FOREACH(queue, &s->queues, next) {
315 queue->valid--;
316 }
317 }
318
319 /*
320 * Cancel async packets that are no longer valid
321 */
322 static void uhci_async_validate_end(UHCIState *s)
323 {
324 UHCIQueue *queue, *n;
325
326 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) {
327 if (!queue->valid) {
328 uhci_queue_free(queue, "validate-end");
329 }
330 }
331 }
332
333 static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev)
334 {
335 UHCIQueue *queue, *n;
336
337 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, n) {
338 if (queue->ep->dev == dev) {
339 uhci_queue_free(queue, "cancel-device");
340 }
341 }
342 }
343
344 static void uhci_async_cancel_all(UHCIState *s)
345 {
346 UHCIQueue *queue, *nq;
347
348 QTAILQ_FOREACH_SAFE(queue, &s->queues, next, nq) {
349 uhci_queue_free(queue, "cancel-all");
350 }
351 }
352
353 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t td_addr)
354 {
355 UHCIQueue *queue;
356 UHCIAsync *async;
357
358 QTAILQ_FOREACH(queue, &s->queues, next) {
359 QTAILQ_FOREACH(async, &queue->asyncs, next) {
360 if (async->td_addr == td_addr) {
361 return async;
362 }
363 }
364 }
365 return NULL;
366 }
367
368 static void uhci_update_irq(UHCIState *s)
369 {
370 int level;
371 if (((s->status2 & 1) && (s->intr & (1 << 2))) ||
372 ((s->status2 & 2) && (s->intr & (1 << 3))) ||
373 ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) ||
374 ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) ||
375 (s->status & UHCI_STS_HSERR) ||
376 (s->status & UHCI_STS_HCPERR)) {
377 level = 1;
378 } else {
379 level = 0;
380 }
381 qemu_set_irq(s->dev.irq[s->irq_pin], level);
382 }
383
384 static void uhci_reset(void *opaque)
385 {
386 UHCIState *s = opaque;
387 uint8_t *pci_conf;
388 int i;
389 UHCIPort *port;
390
391 trace_usb_uhci_reset();
392
393 pci_conf = s->dev.config;
394
395 pci_conf[0x6a] = 0x01; /* usb clock */
396 pci_conf[0x6b] = 0x00;
397 s->cmd = 0;
398 s->status = 0;
399 s->status2 = 0;
400 s->intr = 0;
401 s->fl_base_addr = 0;
402 s->sof_timing = 64;
403
404 for(i = 0; i < NB_PORTS; i++) {
405 port = &s->ports[i];
406 port->ctrl = 0x0080;
407 if (port->port.dev && port->port.dev->attached) {
408 usb_port_reset(&port->port);
409 }
410 }
411
412 uhci_async_cancel_all(s);
413 qemu_bh_cancel(s->bh);
414 uhci_update_irq(s);
415 }
416
417 static const VMStateDescription vmstate_uhci_port = {
418 .name = "uhci port",
419 .version_id = 1,
420 .minimum_version_id = 1,
421 .minimum_version_id_old = 1,
422 .fields = (VMStateField []) {
423 VMSTATE_UINT16(ctrl, UHCIPort),
424 VMSTATE_END_OF_LIST()
425 }
426 };
427
428 static int uhci_post_load(void *opaque, int version_id)
429 {
430 UHCIState *s = opaque;
431
432 if (version_id < 2) {
433 s->expire_time = qemu_get_clock_ns(vm_clock) +
434 (get_ticks_per_sec() / FRAME_TIMER_FREQ);
435 }
436 return 0;
437 }
438
439 static const VMStateDescription vmstate_uhci = {
440 .name = "uhci",
441 .version_id = 3,
442 .minimum_version_id = 1,
443 .minimum_version_id_old = 1,
444 .post_load = uhci_post_load,
445 .fields = (VMStateField []) {
446 VMSTATE_PCI_DEVICE(dev, UHCIState),
447 VMSTATE_UINT8_EQUAL(num_ports_vmstate, UHCIState),
448 VMSTATE_STRUCT_ARRAY(ports, UHCIState, NB_PORTS, 1,
449 vmstate_uhci_port, UHCIPort),
450 VMSTATE_UINT16(cmd, UHCIState),
451 VMSTATE_UINT16(status, UHCIState),
452 VMSTATE_UINT16(intr, UHCIState),
453 VMSTATE_UINT16(frnum, UHCIState),
454 VMSTATE_UINT32(fl_base_addr, UHCIState),
455 VMSTATE_UINT8(sof_timing, UHCIState),
456 VMSTATE_UINT8(status2, UHCIState),
457 VMSTATE_TIMER(frame_timer, UHCIState),
458 VMSTATE_INT64_V(expire_time, UHCIState, 2),
459 VMSTATE_UINT32_V(pending_int_mask, UHCIState, 3),
460 VMSTATE_END_OF_LIST()
461 }
462 };
463
464 static void uhci_port_write(void *opaque, hwaddr addr,
465 uint64_t val, unsigned size)
466 {
467 UHCIState *s = opaque;
468
469 trace_usb_uhci_mmio_writew(addr, val);
470
471 switch(addr) {
472 case 0x00:
473 if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
474 /* start frame processing */
475 trace_usb_uhci_schedule_start();
476 s->expire_time = qemu_get_clock_ns(vm_clock) +
477 (get_ticks_per_sec() / FRAME_TIMER_FREQ);
478 qemu_mod_timer(s->frame_timer, s->expire_time);
479 s->status &= ~UHCI_STS_HCHALTED;
480 } else if (!(val & UHCI_CMD_RS)) {
481 s->status |= UHCI_STS_HCHALTED;
482 }
483 if (val & UHCI_CMD_GRESET) {
484 UHCIPort *port;
485 int i;
486
487 /* send reset on the USB bus */
488 for(i = 0; i < NB_PORTS; i++) {
489 port = &s->ports[i];
490 usb_device_reset(port->port.dev);
491 }
492 uhci_reset(s);
493 return;
494 }
495 if (val & UHCI_CMD_HCRESET) {
496 uhci_reset(s);
497 return;
498 }
499 s->cmd = val;
500 break;
501 case 0x02:
502 s->status &= ~val;
503 /* XXX: the chip spec is not coherent, so we add a hidden
504 register to distinguish between IOC and SPD */
505 if (val & UHCI_STS_USBINT)
506 s->status2 = 0;
507 uhci_update_irq(s);
508 break;
509 case 0x04:
510 s->intr = val;
511 uhci_update_irq(s);
512 break;
513 case 0x06:
514 if (s->status & UHCI_STS_HCHALTED)
515 s->frnum = val & 0x7ff;
516 break;
517 case 0x08:
518 s->fl_base_addr &= 0xffff0000;
519 s->fl_base_addr |= val & ~0xfff;
520 break;
521 case 0x0a:
522 s->fl_base_addr &= 0x0000ffff;
523 s->fl_base_addr |= (val << 16);
524 break;
525 case 0x0c:
526 s->sof_timing = val & 0xff;
527 break;
528 case 0x10 ... 0x1f:
529 {
530 UHCIPort *port;
531 USBDevice *dev;
532 int n;
533
534 n = (addr >> 1) & 7;
535 if (n >= NB_PORTS)
536 return;
537 port = &s->ports[n];
538 dev = port->port.dev;
539 if (dev && dev->attached) {
540 /* port reset */
541 if ( (val & UHCI_PORT_RESET) &&
542 !(port->ctrl & UHCI_PORT_RESET) ) {
543 usb_device_reset(dev);
544 }
545 }
546 port->ctrl &= UHCI_PORT_READ_ONLY;
547 /* enabled may only be set if a device is connected */
548 if (!(port->ctrl & UHCI_PORT_CCS)) {
549 val &= ~UHCI_PORT_EN;
550 }
551 port->ctrl |= (val & ~UHCI_PORT_READ_ONLY);
552 /* some bits are reset when a '1' is written to them */
553 port->ctrl &= ~(val & UHCI_PORT_WRITE_CLEAR);
554 }
555 break;
556 }
557 }
558
559 static uint64_t uhci_port_read(void *opaque, hwaddr addr, unsigned size)
560 {
561 UHCIState *s = opaque;
562 uint32_t val;
563
564 switch(addr) {
565 case 0x00:
566 val = s->cmd;
567 break;
568 case 0x02:
569 val = s->status;
570 break;
571 case 0x04:
572 val = s->intr;
573 break;
574 case 0x06:
575 val = s->frnum;
576 break;
577 case 0x08:
578 val = s->fl_base_addr & 0xffff;
579 break;
580 case 0x0a:
581 val = (s->fl_base_addr >> 16) & 0xffff;
582 break;
583 case 0x0c:
584 val = s->sof_timing;
585 break;
586 case 0x10 ... 0x1f:
587 {
588 UHCIPort *port;
589 int n;
590 n = (addr >> 1) & 7;
591 if (n >= NB_PORTS)
592 goto read_default;
593 port = &s->ports[n];
594 val = port->ctrl;
595 }
596 break;
597 default:
598 read_default:
599 val = 0xff7f; /* disabled port */
600 break;
601 }
602
603 trace_usb_uhci_mmio_readw(addr, val);
604
605 return val;
606 }
607
608 /* signal resume if controller suspended */
609 static void uhci_resume (void *opaque)
610 {
611 UHCIState *s = (UHCIState *)opaque;
612
613 if (!s)
614 return;
615
616 if (s->cmd & UHCI_CMD_EGSM) {
617 s->cmd |= UHCI_CMD_FGR;
618 s->status |= UHCI_STS_RD;
619 uhci_update_irq(s);
620 }
621 }
622
623 static void uhci_attach(USBPort *port1)
624 {
625 UHCIState *s = port1->opaque;
626 UHCIPort *port = &s->ports[port1->index];
627
628 /* set connect status */
629 port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
630
631 /* update speed */
632 if (port->port.dev->speed == USB_SPEED_LOW) {
633 port->ctrl |= UHCI_PORT_LSDA;
634 } else {
635 port->ctrl &= ~UHCI_PORT_LSDA;
636 }
637
638 uhci_resume(s);
639 }
640
641 static void uhci_detach(USBPort *port1)
642 {
643 UHCIState *s = port1->opaque;
644 UHCIPort *port = &s->ports[port1->index];
645
646 uhci_async_cancel_device(s, port1->dev);
647
648 /* set connect status */
649 if (port->ctrl & UHCI_PORT_CCS) {
650 port->ctrl &= ~UHCI_PORT_CCS;
651 port->ctrl |= UHCI_PORT_CSC;
652 }
653 /* disable port */
654 if (port->ctrl & UHCI_PORT_EN) {
655 port->ctrl &= ~UHCI_PORT_EN;
656 port->ctrl |= UHCI_PORT_ENC;
657 }
658
659 uhci_resume(s);
660 }
661
662 static void uhci_child_detach(USBPort *port1, USBDevice *child)
663 {
664 UHCIState *s = port1->opaque;
665
666 uhci_async_cancel_device(s, child);
667 }
668
669 static void uhci_wakeup(USBPort *port1)
670 {
671 UHCIState *s = port1->opaque;
672 UHCIPort *port = &s->ports[port1->index];
673
674 if (port->ctrl & UHCI_PORT_SUSPEND && !(port->ctrl & UHCI_PORT_RD)) {
675 port->ctrl |= UHCI_PORT_RD;
676 uhci_resume(s);
677 }
678 }
679
680 static USBDevice *uhci_find_device(UHCIState *s, uint8_t addr)
681 {
682 USBDevice *dev;
683 int i;
684
685 for (i = 0; i < NB_PORTS; i++) {
686 UHCIPort *port = &s->ports[i];
687 if (!(port->ctrl & UHCI_PORT_EN)) {
688 continue;
689 }
690 dev = usb_find_device(&port->port, addr);
691 if (dev != NULL) {
692 return dev;
693 }
694 }
695 return NULL;
696 }
697
698 static void uhci_read_td(UHCIState *s, UHCI_TD *td, uint32_t link)
699 {
700 pci_dma_read(&s->dev, link & ~0xf, td, sizeof(*td));
701 le32_to_cpus(&td->link);
702 le32_to_cpus(&td->ctrl);
703 le32_to_cpus(&td->token);
704 le32_to_cpus(&td->buffer);
705 }
706
707 static int uhci_handle_td_error(UHCIState *s, UHCI_TD *td, uint32_t td_addr,
708 int status, uint32_t *int_mask)
709 {
710 uint32_t queue_token = uhci_queue_token(td);
711 int ret;
712
713 switch (status) {
714 case USB_RET_NAK:
715 td->ctrl |= TD_CTRL_NAK;
716 return TD_RESULT_NEXT_QH;
717
718 case USB_RET_STALL:
719 td->ctrl |= TD_CTRL_STALL;
720 trace_usb_uhci_packet_complete_stall(queue_token, td_addr);
721 ret = TD_RESULT_NEXT_QH;
722 break;
723
724 case USB_RET_BABBLE:
725 td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
726 /* frame interrupted */
727 trace_usb_uhci_packet_complete_babble(queue_token, td_addr);
728 ret = TD_RESULT_STOP_FRAME;
729 break;
730
731 case USB_RET_IOERROR:
732 case USB_RET_NODEV:
733 default:
734 td->ctrl |= TD_CTRL_TIMEOUT;
735 td->ctrl &= ~(3 << TD_CTRL_ERROR_SHIFT);
736 trace_usb_uhci_packet_complete_error(queue_token, td_addr);
737 ret = TD_RESULT_NEXT_QH;
738 break;
739 }
740
741 td->ctrl &= ~TD_CTRL_ACTIVE;
742 s->status |= UHCI_STS_USBERR;
743 if (td->ctrl & TD_CTRL_IOC) {
744 *int_mask |= 0x01;
745 }
746 uhci_update_irq(s);
747 return ret;
748 }
749
750 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async, uint32_t *int_mask)
751 {
752 int len = 0, max_len;
753 uint8_t pid;
754
755 max_len = ((td->token >> 21) + 1) & 0x7ff;
756 pid = td->token & 0xff;
757
758 if (td->ctrl & TD_CTRL_IOS)
759 td->ctrl &= ~TD_CTRL_ACTIVE;
760
761 if (async->packet.status != USB_RET_SUCCESS) {
762 return uhci_handle_td_error(s, td, async->td_addr,
763 async->packet.status, int_mask);
764 }
765
766 len = async->packet.actual_length;
767 td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff);
768
769 /* The NAK bit may have been set by a previous frame, so clear it
770 here. The docs are somewhat unclear, but win2k relies on this
771 behavior. */
772 td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK);
773 if (td->ctrl & TD_CTRL_IOC)
774 *int_mask |= 0x01;
775
776 if (pid == USB_TOKEN_IN) {
777 if ((td->ctrl & TD_CTRL_SPD) && len < max_len) {
778 *int_mask |= 0x02;
779 /* short packet: do not update QH */
780 trace_usb_uhci_packet_complete_shortxfer(async->queue->token,
781 async->td_addr);
782 return TD_RESULT_NEXT_QH;
783 }
784 }
785
786 /* success */
787 trace_usb_uhci_packet_complete_success(async->queue->token,
788 async->td_addr);
789 return TD_RESULT_COMPLETE;
790 }
791
792 static int uhci_handle_td(UHCIState *s, UHCIQueue *q, uint32_t qh_addr,
793 UHCI_TD *td, uint32_t td_addr, uint32_t *int_mask)
794 {
795 int ret, max_len;
796 bool spd;
797 bool queuing = (q != NULL);
798 uint8_t pid = td->token & 0xff;
799 UHCIAsync *async = uhci_async_find_td(s, td_addr);
800
801 if (async) {
802 if (uhci_queue_verify(async->queue, qh_addr, td, td_addr, queuing)) {
803 assert(q == NULL || q == async->queue);
804 q = async->queue;
805 } else {
806 uhci_queue_free(async->queue, "guest re-used pending td");
807 async = NULL;
808 }
809 }
810
811 if (q == NULL) {
812 q = uhci_queue_find(s, td);
813 if (q && !uhci_queue_verify(q, qh_addr, td, td_addr, queuing)) {
814 uhci_queue_free(q, "guest re-used qh");
815 q = NULL;
816 }
817 }
818
819 if (q) {
820 q->valid = QH_VALID;
821 }
822
823 /* Is active ? */
824 if (!(td->ctrl & TD_CTRL_ACTIVE)) {
825 if (async) {
826 /* Guest marked a pending td non-active, cancel the queue */
827 uhci_queue_free(async->queue, "pending td non-active");
828 }
829 /*
830 * ehci11d spec page 22: "Even if the Active bit in the TD is already
831 * cleared when the TD is fetched ... an IOC interrupt is generated"
832 */
833 if (td->ctrl & TD_CTRL_IOC) {
834 *int_mask |= 0x01;
835 }
836 return TD_RESULT_NEXT_QH;
837 }
838
839 if (async) {
840 if (queuing) {
841 /* we are busy filling the queue, we are not prepared
842 to consume completed packages then, just leave them
843 in async state */
844 return TD_RESULT_ASYNC_CONT;
845 }
846 if (!async->done) {
847 UHCI_TD last_td;
848 UHCIAsync *last = QTAILQ_LAST(&async->queue->asyncs, asyncs_head);
849 /*
850 * While we are waiting for the current td to complete, the guest
851 * may have added more tds to the queue. Note we re-read the td
852 * rather then caching it, as we want to see guest made changes!
853 */
854 uhci_read_td(s, &last_td, last->td_addr);
855 uhci_queue_fill(async->queue, &last_td);
856
857 return TD_RESULT_ASYNC_CONT;
858 }
859 uhci_async_unlink(async);
860 goto done;
861 }
862
863 if (s->completions_only) {
864 return TD_RESULT_ASYNC_CONT;
865 }
866
867 /* Allocate new packet */
868 if (q == NULL) {
869 USBDevice *dev = uhci_find_device(s, (td->token >> 8) & 0x7f);
870 USBEndpoint *ep = usb_ep_get(dev, pid, (td->token >> 15) & 0xf);
871
872 if (ep == NULL) {
873 return uhci_handle_td_error(s, td, td_addr, USB_RET_NODEV,
874 int_mask);
875 }
876 q = uhci_queue_new(s, qh_addr, td, ep);
877 }
878 async = uhci_async_alloc(q, td_addr);
879
880 max_len = ((td->token >> 21) + 1) & 0x7ff;
881 spd = (pid == USB_TOKEN_IN && (td->ctrl & TD_CTRL_SPD) != 0);
882 usb_packet_setup(&async->packet, pid, q->ep, 0, td_addr, spd,
883 (td->ctrl & TD_CTRL_IOC) != 0);
884 qemu_sglist_add(&async->sgl, td->buffer, max_len);
885 usb_packet_map(&async->packet, &async->sgl);
886
887 switch(pid) {
888 case USB_TOKEN_OUT:
889 case USB_TOKEN_SETUP:
890 usb_handle_packet(q->ep->dev, &async->packet);
891 if (async->packet.status == USB_RET_SUCCESS) {
892 async->packet.actual_length = max_len;
893 }
894 break;
895
896 case USB_TOKEN_IN:
897 usb_handle_packet(q->ep->dev, &async->packet);
898 break;
899
900 default:
901 /* invalid pid : frame interrupted */
902 usb_packet_unmap(&async->packet, &async->sgl);
903 uhci_async_free(async);
904 s->status |= UHCI_STS_HCPERR;
905 uhci_update_irq(s);
906 return TD_RESULT_STOP_FRAME;
907 }
908
909 if (async->packet.status == USB_RET_ASYNC) {
910 uhci_async_link(async);
911 if (!queuing) {
912 uhci_queue_fill(q, td);
913 }
914 return TD_RESULT_ASYNC_START;
915 }
916
917 done:
918 ret = uhci_complete_td(s, td, async, int_mask);
919 usb_packet_unmap(&async->packet, &async->sgl);
920 uhci_async_free(async);
921 return ret;
922 }
923
924 static void uhci_async_complete(USBPort *port, USBPacket *packet)
925 {
926 UHCIAsync *async = container_of(packet, UHCIAsync, packet);
927 UHCIState *s = async->queue->uhci;
928
929 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) {
930 uhci_async_cancel(async);
931 return;
932 }
933
934 async->done = 1;
935 /* Force processing of this packet *now*, needed for migration */
936 s->completions_only = true;
937 qemu_bh_schedule(s->bh);
938 }
939
940 static int is_valid(uint32_t link)
941 {
942 return (link & 1) == 0;
943 }
944
945 static int is_qh(uint32_t link)
946 {
947 return (link & 2) != 0;
948 }
949
950 static int depth_first(uint32_t link)
951 {
952 return (link & 4) != 0;
953 }
954
955 /* QH DB used for detecting QH loops */
956 #define UHCI_MAX_QUEUES 128
957 typedef struct {
958 uint32_t addr[UHCI_MAX_QUEUES];
959 int count;
960 } QhDb;
961
962 static void qhdb_reset(QhDb *db)
963 {
964 db->count = 0;
965 }
966
967 /* Add QH to DB. Returns 1 if already present or DB is full. */
968 static int qhdb_insert(QhDb *db, uint32_t addr)
969 {
970 int i;
971 for (i = 0; i < db->count; i++)
972 if (db->addr[i] == addr)
973 return 1;
974
975 if (db->count >= UHCI_MAX_QUEUES)
976 return 1;
977
978 db->addr[db->count++] = addr;
979 return 0;
980 }
981
982 static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td)
983 {
984 uint32_t int_mask = 0;
985 uint32_t plink = td->link;
986 UHCI_TD ptd;
987 int ret;
988
989 while (is_valid(plink)) {
990 uhci_read_td(q->uhci, &ptd, plink);
991 if (!(ptd.ctrl & TD_CTRL_ACTIVE)) {
992 break;
993 }
994 if (uhci_queue_token(&ptd) != q->token) {
995 break;
996 }
997 trace_usb_uhci_td_queue(plink & ~0xf, ptd.ctrl, ptd.token);
998 ret = uhci_handle_td(q->uhci, q, q->qh_addr, &ptd, plink, &int_mask);
999 if (ret == TD_RESULT_ASYNC_CONT) {
1000 break;
1001 }
1002 assert(ret == TD_RESULT_ASYNC_START);
1003 assert(int_mask == 0);
1004 plink = ptd.link;
1005 }
1006 usb_device_flush_ep_queue(q->ep->dev, q->ep);
1007 }
1008
1009 static void uhci_process_frame(UHCIState *s)
1010 {
1011 uint32_t frame_addr, link, old_td_ctrl, val, int_mask;
1012 uint32_t curr_qh, td_count = 0;
1013 int cnt, ret;
1014 UHCI_TD td;
1015 UHCI_QH qh;
1016 QhDb qhdb;
1017
1018 frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);
1019
1020 pci_dma_read(&s->dev, frame_addr, &link, 4);
1021 le32_to_cpus(&link);
1022
1023 int_mask = 0;
1024 curr_qh = 0;
1025
1026 qhdb_reset(&qhdb);
1027
1028 for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
1029 if (!s->completions_only && s->frame_bytes >= s->frame_bandwidth) {
1030 /* We've reached the usb 1.1 bandwidth, which is
1031 1280 bytes/frame, stop processing */
1032 trace_usb_uhci_frame_stop_bandwidth();
1033 break;
1034 }
1035 if (is_qh(link)) {
1036 /* QH */
1037 trace_usb_uhci_qh_load(link & ~0xf);
1038
1039 if (qhdb_insert(&qhdb, link)) {
1040 /*
1041 * We're going in circles. Which is not a bug because
1042 * HCD is allowed to do that as part of the BW management.
1043 *
1044 * Stop processing here if no transaction has been done
1045 * since we've been here last time.
1046 */
1047 if (td_count == 0) {
1048 trace_usb_uhci_frame_loop_stop_idle();
1049 break;
1050 } else {
1051 trace_usb_uhci_frame_loop_continue();
1052 td_count = 0;
1053 qhdb_reset(&qhdb);
1054 qhdb_insert(&qhdb, link);
1055 }
1056 }
1057
1058 pci_dma_read(&s->dev, link & ~0xf, &qh, sizeof(qh));
1059 le32_to_cpus(&qh.link);
1060 le32_to_cpus(&qh.el_link);
1061
1062 if (!is_valid(qh.el_link)) {
1063 /* QH w/o elements */
1064 curr_qh = 0;
1065 link = qh.link;
1066 } else {
1067 /* QH with elements */
1068 curr_qh = link;
1069 link = qh.el_link;
1070 }
1071 continue;
1072 }
1073
1074 /* TD */
1075 uhci_read_td(s, &td, link);
1076 trace_usb_uhci_td_load(curr_qh & ~0xf, link & ~0xf, td.ctrl, td.token);
1077
1078 old_td_ctrl = td.ctrl;
1079 ret = uhci_handle_td(s, NULL, curr_qh, &td, link, &int_mask);
1080 if (old_td_ctrl != td.ctrl) {
1081 /* update the status bits of the TD */
1082 val = cpu_to_le32(td.ctrl);
1083 pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val));
1084 }
1085
1086 switch (ret) {
1087 case TD_RESULT_STOP_FRAME: /* interrupted frame */
1088 goto out;
1089
1090 case TD_RESULT_NEXT_QH:
1091 case TD_RESULT_ASYNC_CONT:
1092 trace_usb_uhci_td_nextqh(curr_qh & ~0xf, link & ~0xf);
1093 link = curr_qh ? qh.link : td.link;
1094 continue;
1095
1096 case TD_RESULT_ASYNC_START:
1097 trace_usb_uhci_td_async(curr_qh & ~0xf, link & ~0xf);
1098 link = curr_qh ? qh.link : td.link;
1099 continue;
1100
1101 case TD_RESULT_COMPLETE:
1102 trace_usb_uhci_td_complete(curr_qh & ~0xf, link & ~0xf);
1103 link = td.link;
1104 td_count++;
1105 s->frame_bytes += (td.ctrl & 0x7ff) + 1;
1106
1107 if (curr_qh) {
1108 /* update QH element link */
1109 qh.el_link = link;
1110 val = cpu_to_le32(qh.el_link);
1111 pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4, &val, sizeof(val));
1112
1113 if (!depth_first(link)) {
1114 /* done with this QH */
1115 curr_qh = 0;
1116 link = qh.link;
1117 }
1118 }
1119 break;
1120
1121 default:
1122 assert(!"unknown return code");
1123 }
1124
1125 /* go to the next entry */
1126 }
1127
1128 out:
1129 s->pending_int_mask |= int_mask;
1130 }
1131
1132 static void uhci_bh(void *opaque)
1133 {
1134 UHCIState *s = opaque;
1135 uhci_process_frame(s);
1136 }
1137
1138 static void uhci_frame_timer(void *opaque)
1139 {
1140 UHCIState *s = opaque;
1141 uint64_t t_now, t_last_run;
1142 int i, frames;
1143 const uint64_t frame_t = get_ticks_per_sec() / FRAME_TIMER_FREQ;
1144
1145 s->completions_only = false;
1146 qemu_bh_cancel(s->bh);
1147
1148 if (!(s->cmd & UHCI_CMD_RS)) {
1149 /* Full stop */
1150 trace_usb_uhci_schedule_stop();
1151 qemu_del_timer(s->frame_timer);
1152 uhci_async_cancel_all(s);
1153 /* set hchalted bit in status - UHCI11D 2.1.2 */
1154 s->status |= UHCI_STS_HCHALTED;
1155 return;
1156 }
1157
1158 /* We still store expire_time in our state, for migration */
1159 t_last_run = s->expire_time - frame_t;
1160 t_now = qemu_get_clock_ns(vm_clock);
1161
1162 /* Process up to MAX_FRAMES_PER_TICK frames */
1163 frames = (t_now - t_last_run) / frame_t;
1164 if (frames > s->maxframes) {
1165 int skipped = frames - s->maxframes;
1166 s->expire_time += skipped * frame_t;
1167 s->frnum = (s->frnum + skipped) & 0x7ff;
1168 frames -= skipped;
1169 }
1170 if (frames > MAX_FRAMES_PER_TICK) {
1171 frames = MAX_FRAMES_PER_TICK;
1172 }
1173
1174 for (i = 0; i < frames; i++) {
1175 s->frame_bytes = 0;
1176 trace_usb_uhci_frame_start(s->frnum);
1177 uhci_async_validate_begin(s);
1178 uhci_process_frame(s);
1179 uhci_async_validate_end(s);
1180 /* The spec says frnum is the frame currently being processed, and
1181 * the guest must look at frnum - 1 on interrupt, so inc frnum now */
1182 s->frnum = (s->frnum + 1) & 0x7ff;
1183 s->expire_time += frame_t;
1184 }
1185
1186 /* Complete the previous frame(s) */
1187 if (s->pending_int_mask) {
1188 s->status2 |= s->pending_int_mask;
1189 s->status |= UHCI_STS_USBINT;
1190 uhci_update_irq(s);
1191 }
1192 s->pending_int_mask = 0;
1193
1194 qemu_mod_timer(s->frame_timer, t_now + frame_t);
1195 }
1196
1197 static const MemoryRegionOps uhci_ioport_ops = {
1198 .read = uhci_port_read,
1199 .write = uhci_port_write,
1200 .valid.min_access_size = 1,
1201 .valid.max_access_size = 4,
1202 .impl.min_access_size = 2,
1203 .impl.max_access_size = 2,
1204 .endianness = DEVICE_LITTLE_ENDIAN,
1205 };
1206
1207 static USBPortOps uhci_port_ops = {
1208 .attach = uhci_attach,
1209 .detach = uhci_detach,
1210 .child_detach = uhci_child_detach,
1211 .wakeup = uhci_wakeup,
1212 .complete = uhci_async_complete,
1213 };
1214
1215 static USBBusOps uhci_bus_ops = {
1216 };
1217
1218 static int usb_uhci_common_initfn(PCIDevice *dev)
1219 {
1220 PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
1221 UHCIPCIDeviceClass *u = container_of(pc, UHCIPCIDeviceClass, parent_class);
1222 UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1223 uint8_t *pci_conf = s->dev.config;
1224 int i;
1225
1226 pci_conf[PCI_CLASS_PROG] = 0x00;
1227 /* TODO: reset value should be 0. */
1228 pci_conf[USB_SBRN] = USB_RELEASE_1; // release number
1229
1230 s->irq_pin = u->info.irq_pin;
1231 pci_config_set_interrupt_pin(pci_conf, s->irq_pin + 1);
1232
1233 if (s->masterbus) {
1234 USBPort *ports[NB_PORTS];
1235 for(i = 0; i < NB_PORTS; i++) {
1236 ports[i] = &s->ports[i].port;
1237 }
1238 if (usb_register_companion(s->masterbus, ports, NB_PORTS,
1239 s->firstport, s, &uhci_port_ops,
1240 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL) != 0) {
1241 return -1;
1242 }
1243 } else {
1244 usb_bus_new(&s->bus, &uhci_bus_ops, &s->dev.qdev);
1245 for (i = 0; i < NB_PORTS; i++) {
1246 usb_register_port(&s->bus, &s->ports[i].port, s, i, &uhci_port_ops,
1247 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
1248 }
1249 }
1250 s->bh = qemu_bh_new(uhci_bh, s);
1251 s->frame_timer = qemu_new_timer_ns(vm_clock, uhci_frame_timer, s);
1252 s->num_ports_vmstate = NB_PORTS;
1253 QTAILQ_INIT(&s->queues);
1254
1255 qemu_register_reset(uhci_reset, s);
1256
1257 memory_region_init_io(&s->io_bar, &uhci_ioport_ops, s, "uhci", 0x20);
1258 /* Use region 4 for consistency with real hardware. BSD guests seem
1259 to rely on this. */
1260 pci_register_bar(&s->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
1261
1262 return 0;
1263 }
1264
1265 static int usb_uhci_vt82c686b_initfn(PCIDevice *dev)
1266 {
1267 UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1268 uint8_t *pci_conf = s->dev.config;
1269
1270 /* USB misc control 1/2 */
1271 pci_set_long(pci_conf + 0x40,0x00001000);
1272 /* PM capability */
1273 pci_set_long(pci_conf + 0x80,0x00020001);
1274 /* USB legacy support */
1275 pci_set_long(pci_conf + 0xc0,0x00002000);
1276
1277 return usb_uhci_common_initfn(dev);
1278 }
1279
1280 static void usb_uhci_exit(PCIDevice *dev)
1281 {
1282 UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
1283
1284 memory_region_destroy(&s->io_bar);
1285 }
1286
1287 static Property uhci_properties[] = {
1288 DEFINE_PROP_STRING("masterbus", UHCIState, masterbus),
1289 DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0),
1290 DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280),
1291 DEFINE_PROP_UINT32("maxframes", UHCIState, maxframes, 128),
1292 DEFINE_PROP_END_OF_LIST(),
1293 };
1294
1295 static void uhci_class_init(ObjectClass *klass, void *data)
1296 {
1297 DeviceClass *dc = DEVICE_CLASS(klass);
1298 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1299 UHCIPCIDeviceClass *u = container_of(k, UHCIPCIDeviceClass, parent_class);
1300 UHCIInfo *info = data;
1301
1302 k->init = info->initfn ? info->initfn : usb_uhci_common_initfn;
1303 k->exit = info->unplug ? usb_uhci_exit : NULL;
1304 k->vendor_id = info->vendor_id;
1305 k->device_id = info->device_id;
1306 k->revision = info->revision;
1307 k->class_id = PCI_CLASS_SERIAL_USB;
1308 k->no_hotplug = 1;
1309 dc->vmsd = &vmstate_uhci;
1310 dc->props = uhci_properties;
1311 u->info = *info;
1312 }
1313
1314 static UHCIInfo uhci_info[] = {
1315 {
1316 .name = "piix3-usb-uhci",
1317 .vendor_id = PCI_VENDOR_ID_INTEL,
1318 .device_id = PCI_DEVICE_ID_INTEL_82371SB_2,
1319 .revision = 0x01,
1320 .irq_pin = 3,
1321 .unplug = true,
1322 },{
1323 .name = "piix4-usb-uhci",
1324 .vendor_id = PCI_VENDOR_ID_INTEL,
1325 .device_id = PCI_DEVICE_ID_INTEL_82371AB_2,
1326 .revision = 0x01,
1327 .irq_pin = 3,
1328 .unplug = true,
1329 },{
1330 .name = "vt82c686b-usb-uhci",
1331 .vendor_id = PCI_VENDOR_ID_VIA,
1332 .device_id = PCI_DEVICE_ID_VIA_UHCI,
1333 .revision = 0x01,
1334 .irq_pin = 3,
1335 .initfn = usb_uhci_vt82c686b_initfn,
1336 .unplug = true,
1337 },{
1338 .name = "ich9-usb-uhci1", /* 00:1d.0 */
1339 .vendor_id = PCI_VENDOR_ID_INTEL,
1340 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI1,
1341 .revision = 0x03,
1342 .irq_pin = 0,
1343 .unplug = false,
1344 },{
1345 .name = "ich9-usb-uhci2", /* 00:1d.1 */
1346 .vendor_id = PCI_VENDOR_ID_INTEL,
1347 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI2,
1348 .revision = 0x03,
1349 .irq_pin = 1,
1350 .unplug = false,
1351 },{
1352 .name = "ich9-usb-uhci3", /* 00:1d.2 */
1353 .vendor_id = PCI_VENDOR_ID_INTEL,
1354 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI3,
1355 .revision = 0x03,
1356 .irq_pin = 2,
1357 .unplug = false,
1358 },{
1359 .name = "ich9-usb-uhci4", /* 00:1a.0 */
1360 .vendor_id = PCI_VENDOR_ID_INTEL,
1361 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI4,
1362 .revision = 0x03,
1363 .irq_pin = 0,
1364 .unplug = false,
1365 },{
1366 .name = "ich9-usb-uhci5", /* 00:1a.1 */
1367 .vendor_id = PCI_VENDOR_ID_INTEL,
1368 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI5,
1369 .revision = 0x03,
1370 .irq_pin = 1,
1371 .unplug = false,
1372 },{
1373 .name = "ich9-usb-uhci6", /* 00:1a.2 */
1374 .vendor_id = PCI_VENDOR_ID_INTEL,
1375 .device_id = PCI_DEVICE_ID_INTEL_82801I_UHCI6,
1376 .revision = 0x03,
1377 .irq_pin = 2,
1378 .unplug = false,
1379 }
1380 };
1381
1382 static void uhci_register_types(void)
1383 {
1384 TypeInfo uhci_type_info = {
1385 .parent = TYPE_PCI_DEVICE,
1386 .instance_size = sizeof(UHCIState),
1387 .class_size = sizeof(UHCIPCIDeviceClass),
1388 .class_init = uhci_class_init,
1389 };
1390 int i;
1391
1392 for (i = 0; i < ARRAY_SIZE(uhci_info); i++) {
1393 uhci_type_info.name = uhci_info[i].name;
1394 uhci_type_info.class_data = uhci_info + i;
1395 type_register(&uhci_type_info);
1396 }
1397 }
1398
1399 type_init(uhci_register_types)
AR7 emulation for QEMU