2 * USB UHCI controller emulation
4 * Copyright (c) 2005 Fabrice Bellard
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
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:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
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
31 #include "qemu-timer.h"
34 //#define DEBUG_DUMP_DATA
36 #define UHCI_CMD_FGR (1 << 4)
37 #define UHCI_CMD_EGSM (1 << 3)
38 #define UHCI_CMD_GRESET (1 << 2)
39 #define UHCI_CMD_HCRESET (1 << 1)
40 #define UHCI_CMD_RS (1 << 0)
42 #define UHCI_STS_HCHALTED (1 << 5)
43 #define UHCI_STS_HCPERR (1 << 4)
44 #define UHCI_STS_HSERR (1 << 3)
45 #define UHCI_STS_RD (1 << 2)
46 #define UHCI_STS_USBERR (1 << 1)
47 #define UHCI_STS_USBINT (1 << 0)
49 #define TD_CTRL_SPD (1 << 29)
50 #define TD_CTRL_ERROR_SHIFT 27
51 #define TD_CTRL_IOS (1 << 25)
52 #define TD_CTRL_IOC (1 << 24)
53 #define TD_CTRL_ACTIVE (1 << 23)
54 #define TD_CTRL_STALL (1 << 22)
55 #define TD_CTRL_BABBLE (1 << 20)
56 #define TD_CTRL_NAK (1 << 19)
57 #define TD_CTRL_TIMEOUT (1 << 18)
59 #define UHCI_PORT_RESET (1 << 9)
60 #define UHCI_PORT_LSDA (1 << 8)
61 #define UHCI_PORT_ENC (1 << 3)
62 #define UHCI_PORT_EN (1 << 2)
63 #define UHCI_PORT_CSC (1 << 1)
64 #define UHCI_PORT_CCS (1 << 0)
66 #define FRAME_TIMER_FREQ 1000
68 #define FRAME_MAX_LOOPS 100
73 #define dprintf printf
75 const char *pid2str(int pid)
78 case USB_TOKEN_SETUP: return "SETUP";
79 case USB_TOKEN_IN: return "IN";
80 case USB_TOKEN_OUT: return "OUT";
89 #ifdef DEBUG_DUMP_DATA
90 static void dump_data(const uint8_t *data, int len)
94 printf("uhci: data: ");
95 for(i = 0; i < len; i++)
96 printf(" %02x", data[i]);
100 static void dump_data(const uint8_t *data, int len) {}
104 * Pending async transaction.
105 * 'packet' must be the first field because completion
106 * handler does "(UHCIAsync *) pkt" cast.
108 typedef struct UHCIAsync {
110 struct UHCIAsync *next;
115 uint8_t buffer[2048];
118 typedef struct UHCIPort {
123 typedef struct UHCIState {
125 uint16_t cmd; /* cmd register */
127 uint16_t intr; /* interrupt enable register */
128 uint16_t frnum; /* frame number */
129 uint32_t fl_base_addr; /* frame list base address */
131 uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */
132 QEMUTimer *frame_timer;
133 UHCIPort ports[NB_PORTS];
135 /* Interrupts that should be raised at the end of the current frame. */
136 uint32_t pending_int_mask;
139 UHCIAsync *async_pending;
140 UHCIAsync *async_pool;
143 typedef struct UHCI_TD {
145 uint32_t ctrl; /* see TD_CTRL_xxx */
150 typedef struct UHCI_QH {
155 static UHCIAsync *uhci_async_alloc(UHCIState *s)
157 UHCIAsync *async = qemu_malloc(sizeof(UHCIAsync));
159 memset(&async->packet, 0, sizeof(async->packet));
170 static void uhci_async_free(UHCIState *s, UHCIAsync *async)
175 static void uhci_async_link(UHCIState *s, UHCIAsync *async)
177 async->next = s->async_pending;
178 s->async_pending = async;
181 static void uhci_async_unlink(UHCIState *s, UHCIAsync *async)
183 UHCIAsync *curr = s->async_pending;
184 UHCIAsync **prev = &s->async_pending;
197 static void uhci_async_cancel(UHCIState *s, UHCIAsync *async)
199 dprintf("uhci: cancel td 0x%x token 0x%x done %u\n",
200 async->td, async->token, async->done);
203 usb_cancel_packet(&async->packet);
204 uhci_async_free(s, async);
208 * Mark all outstanding async packets as invalid.
209 * This is used for canceling them when TDs are removed by the HCD.
211 static UHCIAsync *uhci_async_validate_begin(UHCIState *s)
213 UHCIAsync *async = s->async_pending;
223 * Cancel async packets that are no longer valid
225 static void uhci_async_validate_end(UHCIState *s)
227 UHCIAsync *curr = s->async_pending;
228 UHCIAsync **prev = &s->async_pending;
232 if (curr->valid > 0) {
243 uhci_async_cancel(s, curr);
249 static void uhci_async_cancel_all(UHCIState *s)
251 UHCIAsync *curr = s->async_pending;
257 uhci_async_cancel(s, curr);
262 s->async_pending = NULL;
265 static UHCIAsync *uhci_async_find_td(UHCIState *s, uint32_t addr, uint32_t token)
267 UHCIAsync *async = s->async_pending;
268 UHCIAsync *match = NULL;
272 * We're looking for the best match here. ie both td addr and token.
273 * Otherwise we return last good match. ie just token.
274 * It's ok to match just token because it identifies the transaction
275 * rather well, token includes: device addr, endpoint, size, etc.
277 * Also since we queue async transactions in reverse order by returning
278 * last good match we restores the order.
280 * It's expected that we wont have a ton of outstanding transactions.
281 * If we ever do we'd want to optimize this algorithm.
285 if (async->token == token) {
289 if (async->td == addr) {
300 fprintf(stderr, "uhci: warning lots of async transactions\n");
305 static void uhci_attach(USBPort *port1, USBDevice *dev);
307 static void uhci_update_irq(UHCIState *s)
310 if (((s->status2 & 1) && (s->intr & (1 << 2))) ||
311 ((s->status2 & 2) && (s->intr & (1 << 3))) ||
312 ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) ||
313 ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) ||
314 (s->status & UHCI_STS_HSERR) ||
315 (s->status & UHCI_STS_HCPERR)) {
320 qemu_set_irq(s->dev.irq[3], level);
323 static void uhci_reset(UHCIState *s)
329 dprintf("uhci: full reset\n");
331 pci_conf = s->dev.config;
333 pci_conf[0x6a] = 0x01; /* usb clock */
334 pci_conf[0x6b] = 0x00;
342 for(i = 0; i < NB_PORTS; i++) {
346 uhci_attach(&port->port, port->port.dev);
349 uhci_async_cancel_all(s);
352 static void uhci_save(QEMUFile *f, void *opaque)
354 UHCIState *s = opaque;
355 uint8_t num_ports = NB_PORTS;
358 uhci_async_cancel_all(s);
360 pci_device_save(&s->dev, f);
362 qemu_put_8s(f, &num_ports);
363 for (i = 0; i < num_ports; ++i)
364 qemu_put_be16s(f, &s->ports[i].ctrl);
365 qemu_put_be16s(f, &s->cmd);
366 qemu_put_be16s(f, &s->status);
367 qemu_put_be16s(f, &s->intr);
368 qemu_put_be16s(f, &s->frnum);
369 qemu_put_be32s(f, &s->fl_base_addr);
370 qemu_put_8s(f, &s->sof_timing);
371 qemu_put_8s(f, &s->status2);
372 qemu_put_timer(f, s->frame_timer);
375 static int uhci_load(QEMUFile *f, void *opaque, int version_id)
377 UHCIState *s = opaque;
384 ret = pci_device_load(&s->dev, f);
388 qemu_get_8s(f, &num_ports);
389 if (num_ports != NB_PORTS)
392 for (i = 0; i < num_ports; ++i)
393 qemu_get_be16s(f, &s->ports[i].ctrl);
394 qemu_get_be16s(f, &s->cmd);
395 qemu_get_be16s(f, &s->status);
396 qemu_get_be16s(f, &s->intr);
397 qemu_get_be16s(f, &s->frnum);
398 qemu_get_be32s(f, &s->fl_base_addr);
399 qemu_get_8s(f, &s->sof_timing);
400 qemu_get_8s(f, &s->status2);
401 qemu_get_timer(f, s->frame_timer);
406 static void uhci_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
408 UHCIState *s = opaque;
418 static uint32_t uhci_ioport_readb(void *opaque, uint32_t addr)
420 UHCIState *s = opaque;
435 static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
437 UHCIState *s = opaque;
440 dprintf("uhci: writew port=0x%04x val=0x%04x\n", addr, val);
444 if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
445 /* start frame processing */
446 qemu_mod_timer(s->frame_timer, qemu_get_clock(vm_clock));
447 s->status &= ~UHCI_STS_HCHALTED;
448 } else if (!(val & UHCI_CMD_RS)) {
449 s->status |= UHCI_STS_HCHALTED;
451 if (val & UHCI_CMD_GRESET) {
456 /* send reset on the USB bus */
457 for(i = 0; i < NB_PORTS; i++) {
459 dev = port->port.dev;
461 usb_send_msg(dev, USB_MSG_RESET);
467 if (val & UHCI_CMD_HCRESET) {
475 /* XXX: the chip spec is not coherent, so we add a hidden
476 register to distinguish between IOC and SPD */
477 if (val & UHCI_STS_USBINT)
486 if (s->status & UHCI_STS_HCHALTED)
487 s->frnum = val & 0x7ff;
499 dev = port->port.dev;
502 if ( (val & UHCI_PORT_RESET) &&
503 !(port->ctrl & UHCI_PORT_RESET) ) {
504 usb_send_msg(dev, USB_MSG_RESET);
507 port->ctrl = (port->ctrl & 0x01fb) | (val & ~0x01fb);
508 /* some bits are reset when a '1' is written to them */
509 port->ctrl &= ~(val & 0x000a);
515 static uint32_t uhci_ioport_readw(void *opaque, uint32_t addr)
517 UHCIState *s = opaque;
547 val = 0xff7f; /* disabled port */
551 dprintf("uhci: readw port=0x%04x val=0x%04x\n", addr, val);
556 static void uhci_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
558 UHCIState *s = opaque;
561 dprintf("uhci: writel port=0x%04x val=0x%08x\n", addr, val);
565 s->fl_base_addr = val & ~0xfff;
570 static uint32_t uhci_ioport_readl(void *opaque, uint32_t addr)
572 UHCIState *s = opaque;
578 val = s->fl_base_addr;
587 /* signal resume if controller suspended */
588 static void uhci_resume (void *opaque)
590 UHCIState *s = (UHCIState *)opaque;
595 if (s->cmd & UHCI_CMD_EGSM) {
596 s->cmd |= UHCI_CMD_FGR;
597 s->status |= UHCI_STS_RD;
602 static void uhci_attach(USBPort *port1, USBDevice *dev)
604 UHCIState *s = port1->opaque;
605 UHCIPort *port = &s->ports[port1->index];
608 if (port->port.dev) {
609 usb_attach(port1, NULL);
611 /* set connect status */
612 port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
615 if (dev->speed == USB_SPEED_LOW)
616 port->ctrl |= UHCI_PORT_LSDA;
618 port->ctrl &= ~UHCI_PORT_LSDA;
622 port->port.dev = dev;
623 /* send the attach message */
624 usb_send_msg(dev, USB_MSG_ATTACH);
626 /* set connect status */
627 if (port->ctrl & UHCI_PORT_CCS) {
628 port->ctrl &= ~UHCI_PORT_CCS;
629 port->ctrl |= UHCI_PORT_CSC;
632 if (port->ctrl & UHCI_PORT_EN) {
633 port->ctrl &= ~UHCI_PORT_EN;
634 port->ctrl |= UHCI_PORT_ENC;
639 dev = port->port.dev;
641 /* send the detach message */
642 usb_send_msg(dev, USB_MSG_DETACH);
644 port->port.dev = NULL;
648 static int uhci_broadcast_packet(UHCIState *s, USBPacket *p)
652 dprintf("uhci: packet enter. pid %s addr 0x%02x ep %d len %d\n",
653 pid2str(p->pid), p->devaddr, p->devep, p->len);
654 if (p->pid == USB_TOKEN_OUT || p->pid == USB_TOKEN_SETUP)
655 dump_data(p->data, p->len);
658 for (i = 0; i < NB_PORTS && ret == USB_RET_NODEV; i++) {
659 UHCIPort *port = &s->ports[i];
660 USBDevice *dev = port->port.dev;
662 if (dev && (port->ctrl & UHCI_PORT_EN))
663 ret = dev->handle_packet(dev, p);
666 dprintf("uhci: packet exit. ret %d len %d\n", ret, p->len);
667 if (p->pid == USB_TOKEN_IN && ret > 0)
668 dump_data(p->data, ret);
673 static void uhci_async_complete(USBPacket * packet, void *opaque);
674 static void uhci_process_frame(UHCIState *s);
676 /* return -1 if fatal error (frame must be stopped)
678 1 if TD unsuccessful or inactive
680 static int uhci_complete_td(UHCIState *s, UHCI_TD *td, UHCIAsync *async, uint32_t *int_mask)
682 int len = 0, max_len, err, ret;
685 max_len = ((td->token >> 21) + 1) & 0x7ff;
686 pid = td->token & 0xff;
688 ret = async->packet.len;
690 if (td->ctrl & TD_CTRL_IOC)
693 if (td->ctrl & TD_CTRL_IOS)
694 td->ctrl &= ~TD_CTRL_ACTIVE;
699 len = async->packet.len;
700 td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff);
702 /* The NAK bit may have been set by a previous frame, so clear it
703 here. The docs are somewhat unclear, but win2k relies on this
705 td->ctrl &= ~(TD_CTRL_ACTIVE | TD_CTRL_NAK);
707 if (pid == USB_TOKEN_IN) {
710 ret = USB_RET_BABBLE;
715 /* write the data back */
716 cpu_physical_memory_write(td->buffer, async->buffer, len);
719 if ((td->ctrl & TD_CTRL_SPD) && len < max_len) {
721 /* short packet: do not update QH */
722 dprintf("uhci: short packet. td 0x%x token 0x%x\n", async->td, async->token);
733 td->ctrl |= TD_CTRL_STALL;
734 td->ctrl &= ~TD_CTRL_ACTIVE;
738 td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
739 td->ctrl &= ~TD_CTRL_ACTIVE;
740 /* frame interrupted */
744 td->ctrl |= TD_CTRL_NAK;
745 if (pid == USB_TOKEN_SETUP)
754 /* Retry the TD if error count is not zero */
756 td->ctrl |= TD_CTRL_TIMEOUT;
757 err = (td->ctrl >> TD_CTRL_ERROR_SHIFT) & 3;
761 td->ctrl &= ~TD_CTRL_ACTIVE;
762 s->status |= UHCI_STS_USBERR;
766 td->ctrl = (td->ctrl & ~(3 << TD_CTRL_ERROR_SHIFT)) |
767 (err << TD_CTRL_ERROR_SHIFT);
771 static int uhci_handle_td(UHCIState *s, uint32_t addr, UHCI_TD *td, uint32_t *int_mask)
774 int len = 0, max_len;
778 if (!(td->ctrl & TD_CTRL_ACTIVE))
781 async = uhci_async_find_td(s, addr, td->token);
783 /* Already submitted */
789 uhci_async_unlink(s, async);
793 /* Allocate new packet */
794 async = uhci_async_alloc(s);
800 async->token = td->token;
802 max_len = ((td->token >> 21) + 1) & 0x7ff;
803 pid = td->token & 0xff;
805 async->packet.pid = pid;
806 async->packet.devaddr = (td->token >> 8) & 0x7f;
807 async->packet.devep = (td->token >> 15) & 0xf;
808 async->packet.data = async->buffer;
809 async->packet.len = max_len;
810 async->packet.complete_cb = uhci_async_complete;
811 async->packet.complete_opaque = s;
815 case USB_TOKEN_SETUP:
816 cpu_physical_memory_read(td->buffer, async->buffer, max_len);
817 len = uhci_broadcast_packet(s, &async->packet);
823 len = uhci_broadcast_packet(s, &async->packet);
827 /* invalid pid : frame interrupted */
828 uhci_async_free(s, async);
829 s->status |= UHCI_STS_HCPERR;
834 if (len == USB_RET_ASYNC) {
835 uhci_async_link(s, async);
839 async->packet.len = len;
842 len = uhci_complete_td(s, td, async, int_mask);
843 uhci_async_free(s, async);
847 static void uhci_async_complete(USBPacket *packet, void *opaque)
849 UHCIState *s = opaque;
850 UHCIAsync *async = (UHCIAsync *) packet;
852 dprintf("uhci: async complete. td 0x%x token 0x%x\n", async->td, async->token);
856 uhci_process_frame(s);
859 static int is_valid(uint32_t link)
861 return (link & 1) == 0;
864 static int is_qh(uint32_t link)
866 return (link & 2) != 0;
869 static int depth_first(uint32_t link)
871 return (link & 4) != 0;
874 /* QH DB used for detecting QH loops */
875 #define UHCI_MAX_QUEUES 128
877 uint32_t addr[UHCI_MAX_QUEUES];
881 static void qhdb_reset(QhDb *db)
886 /* Add QH to DB. Returns 1 if already present or DB is full. */
887 static int qhdb_insert(QhDb *db, uint32_t addr)
890 for (i = 0; i < db->count; i++)
891 if (db->addr[i] == addr)
894 if (db->count >= UHCI_MAX_QUEUES)
897 db->addr[db->count++] = addr;
901 static void uhci_process_frame(UHCIState *s)
903 uint32_t frame_addr, link, old_td_ctrl, val, int_mask;
910 frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);
912 dprintf("uhci: processing frame %d addr 0x%x\n" , s->frnum, frame_addr);
914 cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);
922 for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
926 if (qhdb_insert(&qhdb, link)) {
928 * We're going in circles. Which is not a bug because
929 * HCD is allowed to do that as part of the BW management.
930 * In our case though it makes no sense to spin here. Sync transations
931 * are already done, and async completion handler will re-process
932 * the frame when something is ready.
934 dprintf("uhci: detected loop. qh 0x%x\n", link);
938 cpu_physical_memory_read(link & ~0xf, (uint8_t *) &qh, sizeof(qh));
939 le32_to_cpus(&qh.link);
940 le32_to_cpus(&qh.el_link);
942 dprintf("uhci: QH 0x%x load. link 0x%x elink 0x%x\n",
943 link, qh.link, qh.el_link);
945 if (!is_valid(qh.el_link)) {
946 /* QH w/o elements */
950 /* QH with elements */
958 cpu_physical_memory_read(link & ~0xf, (uint8_t *) &td, sizeof(td));
959 le32_to_cpus(&td.link);
960 le32_to_cpus(&td.ctrl);
961 le32_to_cpus(&td.token);
962 le32_to_cpus(&td.buffer);
964 dprintf("uhci: TD 0x%x load. link 0x%x ctrl 0x%x token 0x%x qh 0x%x\n",
965 link, td.link, td.ctrl, td.token, curr_qh);
967 old_td_ctrl = td.ctrl;
968 ret = uhci_handle_td(s, link, &td, &int_mask);
969 if (old_td_ctrl != td.ctrl) {
970 /* update the status bits of the TD */
971 val = cpu_to_le32(td.ctrl);
972 cpu_physical_memory_write((link & ~0xf) + 4,
973 (const uint8_t *)&val, sizeof(val));
977 /* interrupted frame */
981 if (ret == 2 || ret == 1) {
982 dprintf("uhci: TD 0x%x %s. link 0x%x ctrl 0x%x token 0x%x qh 0x%x\n",
983 link, ret == 2 ? "pend" : "skip",
984 td.link, td.ctrl, td.token, curr_qh);
986 link = curr_qh ? qh.link : td.link;
992 dprintf("uhci: TD 0x%x done. link 0x%x ctrl 0x%x token 0x%x qh 0x%x\n",
993 link, td.link, td.ctrl, td.token, curr_qh);
998 /* update QH element link */
1000 val = cpu_to_le32(qh.el_link);
1001 cpu_physical_memory_write((curr_qh & ~0xf) + 4,
1002 (const uint8_t *)&val, sizeof(val));
1004 if (!depth_first(link)) {
1005 /* done with this QH */
1007 dprintf("uhci: QH 0x%x done. link 0x%x elink 0x%x\n",
1008 curr_qh, qh.link, qh.el_link);
1015 /* go to the next entry */
1018 s->pending_int_mask = int_mask;
1021 static void uhci_frame_timer(void *opaque)
1023 UHCIState *s = opaque;
1024 int64_t expire_time;
1026 if (!(s->cmd & UHCI_CMD_RS)) {
1028 qemu_del_timer(s->frame_timer);
1029 /* set hchalted bit in status - UHCI11D 2.1.2 */
1030 s->status |= UHCI_STS_HCHALTED;
1032 dprintf("uhci: halted\n");
1036 /* Complete the previous frame */
1037 if (s->pending_int_mask) {
1038 s->status2 |= s->pending_int_mask;
1039 s->status |= UHCI_STS_USBINT;
1043 /* Start new frame */
1044 s->frnum = (s->frnum + 1) & 0x7ff;
1046 dprintf("uhci: new frame #%u\n" , s->frnum);
1048 uhci_async_validate_begin(s);
1050 uhci_process_frame(s);
1052 uhci_async_validate_end(s);
1054 /* prepare the timer for the next frame */
1055 expire_time = qemu_get_clock(vm_clock) +
1056 (ticks_per_sec / FRAME_TIMER_FREQ);
1057 qemu_mod_timer(s->frame_timer, expire_time);
1060 static void uhci_map(PCIDevice *pci_dev, int region_num,
1061 uint32_t addr, uint32_t size, int type)
1063 UHCIState *s = (UHCIState *)pci_dev;
1065 register_ioport_write(addr, 32, 2, uhci_ioport_writew, s);
1066 register_ioport_read(addr, 32, 2, uhci_ioport_readw, s);
1067 register_ioport_write(addr, 32, 4, uhci_ioport_writel, s);
1068 register_ioport_read(addr, 32, 4, uhci_ioport_readl, s);
1069 register_ioport_write(addr, 32, 1, uhci_ioport_writeb, s);
1070 register_ioport_read(addr, 32, 1, uhci_ioport_readb, s);
1073 void usb_uhci_piix3_init(PCIBus *bus, int devfn)
1079 s = (UHCIState *)pci_register_device(bus,
1080 "USB-UHCI", sizeof(UHCIState),
1082 pci_conf = s->dev.config;
1083 pci_conf[0x00] = 0x86;
1084 pci_conf[0x01] = 0x80;
1085 pci_conf[0x02] = 0x20;
1086 pci_conf[0x03] = 0x70;
1087 pci_conf[0x08] = 0x01; // revision number
1088 pci_conf[0x09] = 0x00;
1089 pci_conf[0x0a] = 0x03;
1090 pci_conf[0x0b] = 0x0c;
1091 pci_conf[0x0e] = 0x00; // header_type
1092 pci_conf[0x3d] = 4; // interrupt pin 3
1093 pci_conf[0x60] = 0x10; // release number
1095 for(i = 0; i < NB_PORTS; i++) {
1096 qemu_register_usb_port(&s->ports[i].port, s, i, uhci_attach);
1098 s->frame_timer = qemu_new_timer(vm_clock, uhci_frame_timer, s);
1102 /* Use region 4 for consistency with real hardware. BSD guests seem
1104 pci_register_io_region(&s->dev, 4, 0x20,
1105 PCI_ADDRESS_SPACE_IO, uhci_map);
1107 register_savevm("uhci", 0, 1, uhci_save, uhci_load, s);
1110 void usb_uhci_piix4_init(PCIBus *bus, int devfn)
1116 s = (UHCIState *)pci_register_device(bus,
1117 "USB-UHCI", sizeof(UHCIState),
1119 pci_conf = s->dev.config;
1120 pci_conf[0x00] = 0x86;
1121 pci_conf[0x01] = 0x80;
1122 pci_conf[0x02] = 0x12;
1123 pci_conf[0x03] = 0x71;
1124 pci_conf[0x08] = 0x01; // revision number
1125 pci_conf[0x09] = 0x00;
1126 pci_conf[0x0a] = 0x03;
1127 pci_conf[0x0b] = 0x0c;
1128 pci_conf[0x0e] = 0x00; // header_type
1129 pci_conf[0x3d] = 4; // interrupt pin 3
1130 pci_conf[0x60] = 0x10; // release number
1132 for(i = 0; i < NB_PORTS; i++) {
1133 qemu_register_usb_port(&s->ports[i].port, s, i, uhci_attach);
1135 s->frame_timer = qemu_new_timer(vm_clock, uhci_frame_timer, s);
1139 /* Use region 4 for consistency with real hardware. BSD guests seem
1141 pci_register_io_region(&s->dev, 4, 0x20,
1142 PCI_ADDRESS_SPACE_IO, uhci_map);
1144 register_savevm("uhci", 0, 1, uhci_save, uhci_load, s);