2 * QEMU USB EHCI Emulation
4 * Copyright(c) 2008 Emutex Ltd. (address@hidden)
6 * EHCI project was started by Mark Burkley, with contributions by
7 * Niels de Vos. David S. Ahern continued working on it. Kevin Wolf,
8 * Jan Kiszka and Vincent Palatin contributed bugfixes.
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or(at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, see <http://www.gnu.org/licenses/>.
26 #include "qemu-timer.h"
36 #define DPRINTF printf
41 /* internal processing - reset HC to try and recover */
42 #define USB_RET_PROCERR (-99)
44 #define MMIO_SIZE 0x1000
46 /* Capability Registers Base Address - section 2.2 */
47 #define CAPREGBASE 0x0000
48 #define CAPLENGTH CAPREGBASE + 0x0000 // 1-byte, 0x0001 reserved
49 #define HCIVERSION CAPREGBASE + 0x0002 // 2-bytes, i/f version #
50 #define HCSPARAMS CAPREGBASE + 0x0004 // 4-bytes, structural params
51 #define HCCPARAMS CAPREGBASE + 0x0008 // 4-bytes, capability params
52 #define EECP HCCPARAMS + 1
53 #define HCSPPORTROUTE1 CAPREGBASE + 0x000c
54 #define HCSPPORTROUTE2 CAPREGBASE + 0x0010
56 #define OPREGBASE 0x0020 // Operational Registers Base Address
58 #define USBCMD OPREGBASE + 0x0000
59 #define USBCMD_RUNSTOP (1 << 0) // run / Stop
60 #define USBCMD_HCRESET (1 << 1) // HC Reset
61 #define USBCMD_FLS (3 << 2) // Frame List Size
62 #define USBCMD_FLS_SH 2 // Frame List Size Shift
63 #define USBCMD_PSE (1 << 4) // Periodic Schedule Enable
64 #define USBCMD_ASE (1 << 5) // Asynch Schedule Enable
65 #define USBCMD_IAAD (1 << 6) // Int Asynch Advance Doorbell
66 #define USBCMD_LHCR (1 << 7) // Light Host Controller Reset
67 #define USBCMD_ASPMC (3 << 8) // Async Sched Park Mode Count
68 #define USBCMD_ASPME (1 << 11) // Async Sched Park Mode Enable
69 #define USBCMD_ITC (0x7f << 16) // Int Threshold Control
70 #define USBCMD_ITC_SH 16 // Int Threshold Control Shift
72 #define USBSTS OPREGBASE + 0x0004
73 #define USBSTS_RO_MASK 0x0000003f
74 #define USBSTS_INT (1 << 0) // USB Interrupt
75 #define USBSTS_ERRINT (1 << 1) // Error Interrupt
76 #define USBSTS_PCD (1 << 2) // Port Change Detect
77 #define USBSTS_FLR (1 << 3) // Frame List Rollover
78 #define USBSTS_HSE (1 << 4) // Host System Error
79 #define USBSTS_IAA (1 << 5) // Interrupt on Async Advance
80 #define USBSTS_HALT (1 << 12) // HC Halted
81 #define USBSTS_REC (1 << 13) // Reclamation
82 #define USBSTS_PSS (1 << 14) // Periodic Schedule Status
83 #define USBSTS_ASS (1 << 15) // Asynchronous Schedule Status
86 * Interrupt enable bits correspond to the interrupt active bits in USBSTS
87 * so no need to redefine here.
89 #define USBINTR OPREGBASE + 0x0008
90 #define USBINTR_MASK 0x0000003f
92 #define FRINDEX OPREGBASE + 0x000c
93 #define CTRLDSSEGMENT OPREGBASE + 0x0010
94 #define PERIODICLISTBASE OPREGBASE + 0x0014
95 #define ASYNCLISTADDR OPREGBASE + 0x0018
96 #define ASYNCLISTADDR_MASK 0xffffffe0
98 #define CONFIGFLAG OPREGBASE + 0x0040
100 #define PORTSC (OPREGBASE + 0x0044)
101 #define PORTSC_BEGIN PORTSC
102 #define PORTSC_END (PORTSC + 4 * NB_PORTS)
104 * Bits that are reserved or are read-only are masked out of values
105 * written to us by software
107 #define PORTSC_RO_MASK 0x007001c0
108 #define PORTSC_RWC_MASK 0x0000002a
109 #define PORTSC_WKOC_E (1 << 22) // Wake on Over Current Enable
110 #define PORTSC_WKDS_E (1 << 21) // Wake on Disconnect Enable
111 #define PORTSC_WKCN_E (1 << 20) // Wake on Connect Enable
112 #define PORTSC_PTC (15 << 16) // Port Test Control
113 #define PORTSC_PTC_SH 16 // Port Test Control shift
114 #define PORTSC_PIC (3 << 14) // Port Indicator Control
115 #define PORTSC_PIC_SH 14 // Port Indicator Control Shift
116 #define PORTSC_POWNER (1 << 13) // Port Owner
117 #define PORTSC_PPOWER (1 << 12) // Port Power
118 #define PORTSC_LINESTAT (3 << 10) // Port Line Status
119 #define PORTSC_LINESTAT_SH 10 // Port Line Status Shift
120 #define PORTSC_PRESET (1 << 8) // Port Reset
121 #define PORTSC_SUSPEND (1 << 7) // Port Suspend
122 #define PORTSC_FPRES (1 << 6) // Force Port Resume
123 #define PORTSC_OCC (1 << 5) // Over Current Change
124 #define PORTSC_OCA (1 << 4) // Over Current Active
125 #define PORTSC_PEDC (1 << 3) // Port Enable/Disable Change
126 #define PORTSC_PED (1 << 2) // Port Enable/Disable
127 #define PORTSC_CSC (1 << 1) // Connect Status Change
128 #define PORTSC_CONNECT (1 << 0) // Current Connect Status
130 #define FRAME_TIMER_FREQ 1000
131 #define FRAME_TIMER_NS (1000000000 / FRAME_TIMER_FREQ)
133 #define NB_MAXINTRATE 8 // Max rate at which controller issues ints
134 #define NB_PORTS 6 // Number of downstream ports
135 #define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction
136 #define MAX_QH 100 // Max allowable queue heads in a chain
138 /* Internal periodic / asynchronous schedule state machine states
145 /* The following states are internal to the state machine function
159 /* macros for accessing fields within next link pointer entry */
160 #define NLPTR_GET(x) ((x) & 0xffffffe0)
161 #define NLPTR_TYPE_GET(x) (((x) >> 1) & 3)
162 #define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid
164 /* link pointer types */
165 #define NLPTR_TYPE_ITD 0 // isoc xfer descriptor
166 #define NLPTR_TYPE_QH 1 // queue head
167 #define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor
168 #define NLPTR_TYPE_FSTN 3 // frame span traversal node
171 /* EHCI spec version 1.0 Section 3.3
173 typedef struct EHCIitd {
176 uint32_t transact[8];
177 #define ITD_XACT_ACTIVE (1 << 31)
178 #define ITD_XACT_DBERROR (1 << 30)
179 #define ITD_XACT_BABBLE (1 << 29)
180 #define ITD_XACT_XACTERR (1 << 28)
181 #define ITD_XACT_LENGTH_MASK 0x0fff0000
182 #define ITD_XACT_LENGTH_SH 16
183 #define ITD_XACT_IOC (1 << 15)
184 #define ITD_XACT_PGSEL_MASK 0x00007000
185 #define ITD_XACT_PGSEL_SH 12
186 #define ITD_XACT_OFFSET_MASK 0x00000fff
189 #define ITD_BUFPTR_MASK 0xfffff000
190 #define ITD_BUFPTR_SH 12
191 #define ITD_BUFPTR_EP_MASK 0x00000f00
192 #define ITD_BUFPTR_EP_SH 8
193 #define ITD_BUFPTR_DEVADDR_MASK 0x0000007f
194 #define ITD_BUFPTR_DEVADDR_SH 0
195 #define ITD_BUFPTR_DIRECTION (1 << 11)
196 #define ITD_BUFPTR_MAXPKT_MASK 0x000007ff
197 #define ITD_BUFPTR_MAXPKT_SH 0
198 #define ITD_BUFPTR_MULT_MASK 0x00000003
199 #define ITD_BUFPTR_MULT_SH 0
202 /* EHCI spec version 1.0 Section 3.4
204 typedef struct EHCIsitd {
205 uint32_t next; // Standard next link pointer
207 #define SITD_EPCHAR_IO (1 << 31)
208 #define SITD_EPCHAR_PORTNUM_MASK 0x7f000000
209 #define SITD_EPCHAR_PORTNUM_SH 24
210 #define SITD_EPCHAR_HUBADD_MASK 0x007f0000
211 #define SITD_EPCHAR_HUBADDR_SH 16
212 #define SITD_EPCHAR_EPNUM_MASK 0x00000f00
213 #define SITD_EPCHAR_EPNUM_SH 8
214 #define SITD_EPCHAR_DEVADDR_MASK 0x0000007f
217 #define SITD_UFRAME_CMASK_MASK 0x0000ff00
218 #define SITD_UFRAME_CMASK_SH 8
219 #define SITD_UFRAME_SMASK_MASK 0x000000ff
222 #define SITD_RESULTS_IOC (1 << 31)
223 #define SITD_RESULTS_PGSEL (1 << 30)
224 #define SITD_RESULTS_TBYTES_MASK 0x03ff0000
225 #define SITD_RESULTS_TYBYTES_SH 16
226 #define SITD_RESULTS_CPROGMASK_MASK 0x0000ff00
227 #define SITD_RESULTS_CPROGMASK_SH 8
228 #define SITD_RESULTS_ACTIVE (1 << 7)
229 #define SITD_RESULTS_ERR (1 << 6)
230 #define SITD_RESULTS_DBERR (1 << 5)
231 #define SITD_RESULTS_BABBLE (1 << 4)
232 #define SITD_RESULTS_XACTERR (1 << 3)
233 #define SITD_RESULTS_MISSEDUF (1 << 2)
234 #define SITD_RESULTS_SPLITXSTATE (1 << 1)
237 #define SITD_BUFPTR_MASK 0xfffff000
238 #define SITD_BUFPTR_CURROFF_MASK 0x00000fff
239 #define SITD_BUFPTR_TPOS_MASK 0x00000018
240 #define SITD_BUFPTR_TPOS_SH 3
241 #define SITD_BUFPTR_TCNT_MASK 0x00000007
243 uint32_t backptr; // Standard next link pointer
246 /* EHCI spec version 1.0 Section 3.5
248 typedef struct EHCIqtd {
249 uint32_t next; // Standard next link pointer
250 uint32_t altnext; // Standard next link pointer
252 #define QTD_TOKEN_DTOGGLE (1 << 31)
253 #define QTD_TOKEN_TBYTES_MASK 0x7fff0000
254 #define QTD_TOKEN_TBYTES_SH 16
255 #define QTD_TOKEN_IOC (1 << 15)
256 #define QTD_TOKEN_CPAGE_MASK 0x00007000
257 #define QTD_TOKEN_CPAGE_SH 12
258 #define QTD_TOKEN_CERR_MASK 0x00000c00
259 #define QTD_TOKEN_CERR_SH 10
260 #define QTD_TOKEN_PID_MASK 0x00000300
261 #define QTD_TOKEN_PID_SH 8
262 #define QTD_TOKEN_ACTIVE (1 << 7)
263 #define QTD_TOKEN_HALT (1 << 6)
264 #define QTD_TOKEN_DBERR (1 << 5)
265 #define QTD_TOKEN_BABBLE (1 << 4)
266 #define QTD_TOKEN_XACTERR (1 << 3)
267 #define QTD_TOKEN_MISSEDUF (1 << 2)
268 #define QTD_TOKEN_SPLITXSTATE (1 << 1)
269 #define QTD_TOKEN_PING (1 << 0)
271 uint32_t bufptr[5]; // Standard buffer pointer
272 #define QTD_BUFPTR_MASK 0xfffff000
273 #define QTD_BUFPTR_SH 12
276 /* EHCI spec version 1.0 Section 3.6
278 typedef struct EHCIqh {
279 uint32_t next; // Standard next link pointer
281 /* endpoint characteristics */
283 #define QH_EPCHAR_RL_MASK 0xf0000000
284 #define QH_EPCHAR_RL_SH 28
285 #define QH_EPCHAR_C (1 << 27)
286 #define QH_EPCHAR_MPLEN_MASK 0x07FF0000
287 #define QH_EPCHAR_MPLEN_SH 16
288 #define QH_EPCHAR_H (1 << 15)
289 #define QH_EPCHAR_DTC (1 << 14)
290 #define QH_EPCHAR_EPS_MASK 0x00003000
291 #define QH_EPCHAR_EPS_SH 12
292 #define EHCI_QH_EPS_FULL 0
293 #define EHCI_QH_EPS_LOW 1
294 #define EHCI_QH_EPS_HIGH 2
295 #define EHCI_QH_EPS_RESERVED 3
297 #define QH_EPCHAR_EP_MASK 0x00000f00
298 #define QH_EPCHAR_EP_SH 8
299 #define QH_EPCHAR_I (1 << 7)
300 #define QH_EPCHAR_DEVADDR_MASK 0x0000007f
301 #define QH_EPCHAR_DEVADDR_SH 0
303 /* endpoint capabilities */
305 #define QH_EPCAP_MULT_MASK 0xc0000000
306 #define QH_EPCAP_MULT_SH 30
307 #define QH_EPCAP_PORTNUM_MASK 0x3f800000
308 #define QH_EPCAP_PORTNUM_SH 23
309 #define QH_EPCAP_HUBADDR_MASK 0x007f0000
310 #define QH_EPCAP_HUBADDR_SH 16
311 #define QH_EPCAP_CMASK_MASK 0x0000ff00
312 #define QH_EPCAP_CMASK_SH 8
313 #define QH_EPCAP_SMASK_MASK 0x000000ff
314 #define QH_EPCAP_SMASK_SH 0
316 uint32_t current_qtd; // Standard next link pointer
317 uint32_t next_qtd; // Standard next link pointer
318 uint32_t altnext_qtd;
319 #define QH_ALTNEXT_NAKCNT_MASK 0x0000001e
320 #define QH_ALTNEXT_NAKCNT_SH 1
322 uint32_t token; // Same as QTD token
323 uint32_t bufptr[5]; // Standard buffer pointer
324 #define BUFPTR_CPROGMASK_MASK 0x000000ff
325 #define BUFPTR_FRAMETAG_MASK 0x0000001f
326 #define BUFPTR_SBYTES_MASK 0x00000fe0
327 #define BUFPTR_SBYTES_SH 5
330 /* EHCI spec version 1.0 Section 3.7
332 typedef struct EHCIfstn {
333 uint32_t next; // Standard next link pointer
334 uint32_t backptr; // Standard next link pointer
337 typedef struct EHCIPacket EHCIPacket;
338 typedef struct EHCIQueue EHCIQueue;
339 typedef struct EHCIState EHCIState;
349 QTAILQ_ENTRY(EHCIPacket) next;
351 EHCIqtd qtd; /* copy of current QTD (being worked on) */
352 uint32_t qtdaddr; /* address QTD read from */
358 enum async_state async;
364 QTAILQ_ENTRY(EHCIQueue) next;
369 /* cached data from guest - needs to be flushed
370 * when guest removes an entry (doorbell, handshake sequence)
372 EHCIqh qh; /* copy of current QH (being worked on) */
373 uint32_t qhaddr; /* address QH read from */
374 uint32_t qtdaddr; /* address QTD read from */
376 QTAILQ_HEAD(, EHCIPacket) packets;
379 typedef QTAILQ_HEAD(EHCIQueueHead, EHCIQueue) EHCIQueueHead;
392 * EHCI spec version 1.0 Section 2.3
393 * Host Controller Operational Registers
396 uint8_t mmio[MMIO_SIZE];
398 uint8_t cap[OPREGBASE];
403 uint32_t ctrldssegment;
404 uint32_t periodiclistbase;
405 uint32_t asynclistaddr;
408 uint32_t portsc[NB_PORTS];
413 * Internal states, shadow registers, etc
415 QEMUTimer *frame_timer;
417 int astate; // Current state in asynchronous schedule
418 int pstate; // Current state in periodic schedule
419 USBPort ports[NB_PORTS];
420 USBPort *companion_ports[NB_PORTS];
421 uint32_t usbsts_pending;
422 EHCIQueueHead aqueues;
423 EHCIQueueHead pqueues;
425 uint32_t a_fetch_addr; // which address to look at next
426 uint32_t p_fetch_addr; // which address to look at next
431 uint64_t last_run_ns;
432 uint32_t async_stepdown;
435 #define SET_LAST_RUN_CLOCK(s) \
436 (s)->last_run_ns = qemu_get_clock_ns(vm_clock);
438 /* nifty macros from Arnon's EHCI version */
439 #define get_field(data, field) \
440 (((data) & field##_MASK) >> field##_SH)
442 #define set_field(data, newval, field) do { \
443 uint32_t val = *data; \
444 val &= ~ field##_MASK; \
445 val |= ((newval) << field##_SH) & field##_MASK; \
449 static const char *ehci_state_names[] = {
450 [EST_INACTIVE] = "INACTIVE",
451 [EST_ACTIVE] = "ACTIVE",
452 [EST_EXECUTING] = "EXECUTING",
453 [EST_SLEEPING] = "SLEEPING",
454 [EST_WAITLISTHEAD] = "WAITLISTHEAD",
455 [EST_FETCHENTRY] = "FETCH ENTRY",
456 [EST_FETCHQH] = "FETCH QH",
457 [EST_FETCHITD] = "FETCH ITD",
458 [EST_ADVANCEQUEUE] = "ADVANCEQUEUE",
459 [EST_FETCHQTD] = "FETCH QTD",
460 [EST_EXECUTE] = "EXECUTE",
461 [EST_WRITEBACK] = "WRITEBACK",
462 [EST_HORIZONTALQH] = "HORIZONTALQH",
465 static const char *ehci_mmio_names[] = {
466 [CAPLENGTH] = "CAPLENGTH",
467 [HCIVERSION] = "HCIVERSION",
468 [HCSPARAMS] = "HCSPARAMS",
469 [HCCPARAMS] = "HCCPARAMS",
472 [USBINTR] = "USBINTR",
473 [FRINDEX] = "FRINDEX",
474 [PERIODICLISTBASE] = "P-LIST BASE",
475 [ASYNCLISTADDR] = "A-LIST ADDR",
476 [PORTSC_BEGIN] = "PORTSC #0",
477 [PORTSC_BEGIN + 4] = "PORTSC #1",
478 [PORTSC_BEGIN + 8] = "PORTSC #2",
479 [PORTSC_BEGIN + 12] = "PORTSC #3",
480 [PORTSC_BEGIN + 16] = "PORTSC #4",
481 [PORTSC_BEGIN + 20] = "PORTSC #5",
482 [CONFIGFLAG] = "CONFIGFLAG",
485 static const char *nr2str(const char **n, size_t len, uint32_t nr)
487 if (nr < len && n[nr] != NULL) {
494 static const char *state2str(uint32_t state)
496 return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state);
499 static const char *addr2str(target_phys_addr_t addr)
501 return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr);
504 static void ehci_trace_usbsts(uint32_t mask, int state)
507 if (mask & USBSTS_INT) {
508 trace_usb_ehci_usbsts("INT", state);
510 if (mask & USBSTS_ERRINT) {
511 trace_usb_ehci_usbsts("ERRINT", state);
513 if (mask & USBSTS_PCD) {
514 trace_usb_ehci_usbsts("PCD", state);
516 if (mask & USBSTS_FLR) {
517 trace_usb_ehci_usbsts("FLR", state);
519 if (mask & USBSTS_HSE) {
520 trace_usb_ehci_usbsts("HSE", state);
522 if (mask & USBSTS_IAA) {
523 trace_usb_ehci_usbsts("IAA", state);
527 if (mask & USBSTS_HALT) {
528 trace_usb_ehci_usbsts("HALT", state);
530 if (mask & USBSTS_REC) {
531 trace_usb_ehci_usbsts("REC", state);
533 if (mask & USBSTS_PSS) {
534 trace_usb_ehci_usbsts("PSS", state);
536 if (mask & USBSTS_ASS) {
537 trace_usb_ehci_usbsts("ASS", state);
541 static inline void ehci_set_usbsts(EHCIState *s, int mask)
543 if ((s->usbsts & mask) == mask) {
546 ehci_trace_usbsts(mask, 1);
550 static inline void ehci_clear_usbsts(EHCIState *s, int mask)
552 if ((s->usbsts & mask) == 0) {
555 ehci_trace_usbsts(mask, 0);
559 static inline void ehci_set_interrupt(EHCIState *s, int intr)
563 // TODO honour interrupt threshold requests
565 ehci_set_usbsts(s, intr);
567 if ((s->usbsts & USBINTR_MASK) & s->usbintr) {
571 qemu_set_irq(s->irq, level);
574 static inline void ehci_record_interrupt(EHCIState *s, int intr)
576 s->usbsts_pending |= intr;
579 static inline void ehci_commit_interrupt(EHCIState *s)
581 if (!s->usbsts_pending) {
584 ehci_set_interrupt(s, s->usbsts_pending);
585 s->usbsts_pending = 0;
588 static void ehci_update_halt(EHCIState *s)
590 if (s->usbcmd & USBCMD_RUNSTOP) {
591 ehci_clear_usbsts(s, USBSTS_HALT);
593 if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) {
594 ehci_set_usbsts(s, USBSTS_HALT);
599 static void ehci_set_state(EHCIState *s, int async, int state)
602 trace_usb_ehci_state("async", state2str(state));
604 if (s->astate == EST_INACTIVE) {
605 ehci_clear_usbsts(s, USBSTS_ASS);
608 ehci_set_usbsts(s, USBSTS_ASS);
611 trace_usb_ehci_state("periodic", state2str(state));
613 if (s->pstate == EST_INACTIVE) {
614 ehci_clear_usbsts(s, USBSTS_PSS);
617 ehci_set_usbsts(s, USBSTS_PSS);
622 static int ehci_get_state(EHCIState *s, int async)
624 return async ? s->astate : s->pstate;
627 static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr)
630 s->a_fetch_addr = addr;
632 s->p_fetch_addr = addr;
636 static int ehci_get_fetch_addr(EHCIState *s, int async)
638 return async ? s->a_fetch_addr : s->p_fetch_addr;
641 static void ehci_trace_qh(EHCIQueue *q, target_phys_addr_t addr, EHCIqh *qh)
643 /* need three here due to argument count limits */
644 trace_usb_ehci_qh_ptrs(q, addr, qh->next,
645 qh->current_qtd, qh->next_qtd, qh->altnext_qtd);
646 trace_usb_ehci_qh_fields(addr,
647 get_field(qh->epchar, QH_EPCHAR_RL),
648 get_field(qh->epchar, QH_EPCHAR_MPLEN),
649 get_field(qh->epchar, QH_EPCHAR_EPS),
650 get_field(qh->epchar, QH_EPCHAR_EP),
651 get_field(qh->epchar, QH_EPCHAR_DEVADDR));
652 trace_usb_ehci_qh_bits(addr,
653 (bool)(qh->epchar & QH_EPCHAR_C),
654 (bool)(qh->epchar & QH_EPCHAR_H),
655 (bool)(qh->epchar & QH_EPCHAR_DTC),
656 (bool)(qh->epchar & QH_EPCHAR_I));
659 static void ehci_trace_qtd(EHCIQueue *q, target_phys_addr_t addr, EHCIqtd *qtd)
661 /* need three here due to argument count limits */
662 trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext);
663 trace_usb_ehci_qtd_fields(addr,
664 get_field(qtd->token, QTD_TOKEN_TBYTES),
665 get_field(qtd->token, QTD_TOKEN_CPAGE),
666 get_field(qtd->token, QTD_TOKEN_CERR),
667 get_field(qtd->token, QTD_TOKEN_PID));
668 trace_usb_ehci_qtd_bits(addr,
669 (bool)(qtd->token & QTD_TOKEN_IOC),
670 (bool)(qtd->token & QTD_TOKEN_ACTIVE),
671 (bool)(qtd->token & QTD_TOKEN_HALT),
672 (bool)(qtd->token & QTD_TOKEN_BABBLE),
673 (bool)(qtd->token & QTD_TOKEN_XACTERR));
676 static void ehci_trace_itd(EHCIState *s, target_phys_addr_t addr, EHCIitd *itd)
678 trace_usb_ehci_itd(addr, itd->next,
679 get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT),
680 get_field(itd->bufptr[2], ITD_BUFPTR_MULT),
681 get_field(itd->bufptr[0], ITD_BUFPTR_EP),
682 get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR));
685 static void ehci_trace_sitd(EHCIState *s, target_phys_addr_t addr,
688 trace_usb_ehci_sitd(addr, sitd->next,
689 (bool)(sitd->results & SITD_RESULTS_ACTIVE));
692 static inline bool ehci_enabled(EHCIState *s)
694 return s->usbcmd & USBCMD_RUNSTOP;
697 static inline bool ehci_async_enabled(EHCIState *s)
699 return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE);
702 static inline bool ehci_periodic_enabled(EHCIState *s)
704 return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE);
707 /* packet management */
709 static EHCIPacket *ehci_alloc_packet(EHCIQueue *q)
713 p = g_new0(EHCIPacket, 1);
715 usb_packet_init(&p->packet);
716 QTAILQ_INSERT_TAIL(&q->packets, p, next);
717 trace_usb_ehci_packet_action(p->queue, p, "alloc");
721 static void ehci_free_packet(EHCIPacket *p)
723 trace_usb_ehci_packet_action(p->queue, p, "free");
724 if (p->async == EHCI_ASYNC_INFLIGHT) {
725 usb_cancel_packet(&p->packet);
727 QTAILQ_REMOVE(&p->queue->packets, p, next);
728 usb_packet_cleanup(&p->packet);
732 /* queue management */
734 static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async)
736 EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues;
739 q = g_malloc0(sizeof(*q));
743 QTAILQ_INIT(&q->packets);
744 QTAILQ_INSERT_HEAD(head, q, next);
745 trace_usb_ehci_queue_action(q, "alloc");
749 static void ehci_free_queue(EHCIQueue *q)
751 EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues;
754 trace_usb_ehci_queue_action(q, "free");
755 while ((p = QTAILQ_FIRST(&q->packets)) != NULL) {
758 QTAILQ_REMOVE(head, q, next);
762 static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr,
765 EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues;
768 QTAILQ_FOREACH(q, head, next) {
769 if (addr == q->qhaddr) {
776 static void ehci_queues_rip_unused(EHCIState *ehci, int async, int flush)
778 EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues;
779 uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4;
782 QTAILQ_FOREACH_SAFE(q, head, next, tmp) {
785 q->ts = ehci->last_run_ns;
788 if (!flush && ehci->last_run_ns < q->ts + maxage) {
795 static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async)
797 EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues;
800 QTAILQ_FOREACH_SAFE(q, head, next, tmp) {
808 static void ehci_queues_rip_all(EHCIState *ehci, int async)
810 EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues;
813 QTAILQ_FOREACH_SAFE(q, head, next, tmp) {
818 /* Attach or detach a device on root hub */
820 static void ehci_attach(USBPort *port)
822 EHCIState *s = port->opaque;
823 uint32_t *portsc = &s->portsc[port->index];
825 trace_usb_ehci_port_attach(port->index, port->dev->product_desc);
827 if (*portsc & PORTSC_POWNER) {
828 USBPort *companion = s->companion_ports[port->index];
829 companion->dev = port->dev;
830 companion->ops->attach(companion);
834 *portsc |= PORTSC_CONNECT;
835 *portsc |= PORTSC_CSC;
837 ehci_set_interrupt(s, USBSTS_PCD);
840 static void ehci_detach(USBPort *port)
842 EHCIState *s = port->opaque;
843 uint32_t *portsc = &s->portsc[port->index];
845 trace_usb_ehci_port_detach(port->index);
847 if (*portsc & PORTSC_POWNER) {
848 USBPort *companion = s->companion_ports[port->index];
849 companion->ops->detach(companion);
850 companion->dev = NULL;
852 * EHCI spec 4.2.2: "When a disconnect occurs... On the event,
853 * the port ownership is returned immediately to the EHCI controller."
855 *portsc &= ~PORTSC_POWNER;
859 ehci_queues_rip_device(s, port->dev, 0);
860 ehci_queues_rip_device(s, port->dev, 1);
862 *portsc &= ~(PORTSC_CONNECT|PORTSC_PED);
863 *portsc |= PORTSC_CSC;
865 ehci_set_interrupt(s, USBSTS_PCD);
868 static void ehci_child_detach(USBPort *port, USBDevice *child)
870 EHCIState *s = port->opaque;
871 uint32_t portsc = s->portsc[port->index];
873 if (portsc & PORTSC_POWNER) {
874 USBPort *companion = s->companion_ports[port->index];
875 companion->ops->child_detach(companion, child);
879 ehci_queues_rip_device(s, child, 0);
880 ehci_queues_rip_device(s, child, 1);
883 static void ehci_wakeup(USBPort *port)
885 EHCIState *s = port->opaque;
886 uint32_t portsc = s->portsc[port->index];
888 if (portsc & PORTSC_POWNER) {
889 USBPort *companion = s->companion_ports[port->index];
890 if (companion->ops->wakeup) {
891 companion->ops->wakeup(companion);
893 qemu_bh_schedule(s->async_bh);
898 static int ehci_register_companion(USBBus *bus, USBPort *ports[],
899 uint32_t portcount, uint32_t firstport)
901 EHCIState *s = container_of(bus, EHCIState, bus);
904 if (firstport + portcount > NB_PORTS) {
905 qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport",
906 "firstport on masterbus");
907 error_printf_unless_qmp(
908 "firstport value of %u makes companion take ports %u - %u, which "
909 "is outside of the valid range of 0 - %u\n", firstport, firstport,
910 firstport + portcount - 1, NB_PORTS - 1);
914 for (i = 0; i < portcount; i++) {
915 if (s->companion_ports[firstport + i]) {
916 qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
918 error_printf_unless_qmp(
919 "port %u on masterbus %s already has a companion assigned\n",
920 firstport + i, bus->qbus.name);
925 for (i = 0; i < portcount; i++) {
926 s->companion_ports[firstport + i] = ports[i];
927 s->ports[firstport + i].speedmask |=
928 USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL;
929 /* Ensure devs attached before the initial reset go to the companion */
930 s->portsc[firstport + i] = PORTSC_POWNER;
933 s->companion_count++;
934 s->mmio[0x05] = (s->companion_count << 4) | portcount;
939 static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr)
945 for (i = 0; i < NB_PORTS; i++) {
946 port = &ehci->ports[i];
947 if (!(ehci->portsc[i] & PORTSC_PED)) {
948 DPRINTF("Port %d not enabled\n", i);
951 dev = usb_find_device(port, addr);
959 /* 4.1 host controller initialization */
960 static void ehci_reset(void *opaque)
962 EHCIState *s = opaque;
964 USBDevice *devs[NB_PORTS];
966 trace_usb_ehci_reset();
969 * Do the detach before touching portsc, so that it correctly gets send to
970 * us or to our companion based on PORTSC_POWNER before the reset.
972 for(i = 0; i < NB_PORTS; i++) {
973 devs[i] = s->ports[i].dev;
974 if (devs[i] && devs[i]->attached) {
975 usb_detach(&s->ports[i]);
979 memset(&s->mmio[OPREGBASE], 0x00, MMIO_SIZE - OPREGBASE);
981 s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH;
982 s->usbsts = USBSTS_HALT;
984 s->astate = EST_INACTIVE;
985 s->pstate = EST_INACTIVE;
987 for(i = 0; i < NB_PORTS; i++) {
988 if (s->companion_ports[i]) {
989 s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER;
991 s->portsc[i] = PORTSC_PPOWER;
993 if (devs[i] && devs[i]->attached) {
994 usb_attach(&s->ports[i]);
995 usb_device_reset(devs[i]);
998 ehci_queues_rip_all(s, 0);
999 ehci_queues_rip_all(s, 1);
1000 qemu_del_timer(s->frame_timer);
1001 qemu_bh_cancel(s->async_bh);
1004 static uint32_t ehci_mem_readb(void *ptr, target_phys_addr_t addr)
1009 val = s->mmio[addr];
1014 static uint32_t ehci_mem_readw(void *ptr, target_phys_addr_t addr)
1019 val = s->mmio[addr] | (s->mmio[addr+1] << 8);
1024 static uint32_t ehci_mem_readl(void *ptr, target_phys_addr_t addr)
1029 val = s->mmio[addr] | (s->mmio[addr+1] << 8) |
1030 (s->mmio[addr+2] << 16) | (s->mmio[addr+3] << 24);
1032 trace_usb_ehci_mmio_readl(addr, addr2str(addr), val);
1036 static void ehci_mem_writeb(void *ptr, target_phys_addr_t addr, uint32_t val)
1038 fprintf(stderr, "EHCI doesn't handle byte writes to MMIO\n");
1042 static void ehci_mem_writew(void *ptr, target_phys_addr_t addr, uint32_t val)
1044 fprintf(stderr, "EHCI doesn't handle 16-bit writes to MMIO\n");
1048 static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner)
1050 USBDevice *dev = s->ports[port].dev;
1051 uint32_t *portsc = &s->portsc[port];
1054 if (s->companion_ports[port] == NULL)
1057 owner = owner & PORTSC_POWNER;
1058 orig = *portsc & PORTSC_POWNER;
1060 if (!(owner ^ orig)) {
1064 if (dev && dev->attached) {
1065 usb_detach(&s->ports[port]);
1068 *portsc &= ~PORTSC_POWNER;
1071 if (dev && dev->attached) {
1072 usb_attach(&s->ports[port]);
1076 static void handle_port_status_write(EHCIState *s, int port, uint32_t val)
1078 uint32_t *portsc = &s->portsc[port];
1079 USBDevice *dev = s->ports[port].dev;
1081 /* Clear rwc bits */
1082 *portsc &= ~(val & PORTSC_RWC_MASK);
1083 /* The guest may clear, but not set the PED bit */
1084 *portsc &= val | ~PORTSC_PED;
1085 /* POWNER is masked out by RO_MASK as it is RO when we've no companion */
1086 handle_port_owner_write(s, port, val);
1087 /* And finally apply RO_MASK */
1088 val &= PORTSC_RO_MASK;
1090 if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) {
1091 trace_usb_ehci_port_reset(port, 1);
1094 if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) {
1095 trace_usb_ehci_port_reset(port, 0);
1096 if (dev && dev->attached) {
1097 usb_port_reset(&s->ports[port]);
1098 *portsc &= ~PORTSC_CSC;
1102 * Table 2.16 Set the enable bit(and enable bit change) to indicate
1103 * to SW that this port has a high speed device attached
1105 if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) {
1110 *portsc &= ~PORTSC_RO_MASK;
1114 static void ehci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
1117 uint32_t *mmio = (uint32_t *)(&s->mmio[addr]);
1118 uint32_t old = *mmio;
1121 trace_usb_ehci_mmio_writel(addr, addr2str(addr), val);
1123 /* Only aligned reads are allowed on OHCI */
1125 fprintf(stderr, "usb-ehci: Mis-aligned write to addr 0x"
1126 TARGET_FMT_plx "\n", addr);
1130 if (addr >= PORTSC && addr < PORTSC + 4 * NB_PORTS) {
1131 handle_port_status_write(s, (addr-PORTSC)/4, val);
1132 trace_usb_ehci_mmio_change(addr, addr2str(addr), *mmio, old);
1136 if (addr < OPREGBASE) {
1137 fprintf(stderr, "usb-ehci: write attempt to read-only register"
1138 TARGET_FMT_plx "\n", addr);
1143 /* Do any register specific pre-write processing here. */
1146 if (val & USBCMD_HCRESET) {
1152 if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) !=
1153 ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) {
1154 if (s->pstate == EST_INACTIVE) {
1155 SET_LAST_RUN_CLOCK(s);
1157 ehci_update_halt(s);
1158 s->async_stepdown = 0;
1159 qemu_mod_timer(s->frame_timer, qemu_get_clock_ns(vm_clock));
1162 /* not supporting dynamic frame list size at the moment */
1163 if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) {
1164 fprintf(stderr, "attempt to set frame list size -- value %d\n",
1171 val &= USBSTS_RO_MASK; // bits 6 through 31 are RO
1172 ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC
1174 ehci_set_interrupt(s, 0);
1178 val &= USBINTR_MASK;
1182 val &= 0x00003ff8; /* frindex is 14bits and always a multiple of 8 */
1188 for(i = 0; i < NB_PORTS; i++)
1189 handle_port_owner_write(s, i, 0);
1193 case PERIODICLISTBASE:
1194 if (ehci_periodic_enabled(s)) {
1196 "ehci: PERIODIC list base register set while periodic schedule\n"
1197 " is enabled and HC is enabled\n");
1202 if (ehci_async_enabled(s)) {
1204 "ehci: ASYNC list address register set while async schedule\n"
1205 " is enabled and HC is enabled\n");
1211 trace_usb_ehci_mmio_change(addr, addr2str(addr), *mmio, old);
1215 // TODO : Put in common header file, duplication from usb-ohci.c
1217 /* Get an array of dwords from main memory */
1218 static inline int get_dwords(EHCIState *ehci, uint32_t addr,
1219 uint32_t *buf, int num)
1223 for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
1224 pci_dma_read(&ehci->dev, addr, buf, sizeof(*buf));
1225 *buf = le32_to_cpu(*buf);
1231 /* Put an array of dwords in to main memory */
1232 static inline int put_dwords(EHCIState *ehci, uint32_t addr,
1233 uint32_t *buf, int num)
1237 for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
1238 uint32_t tmp = cpu_to_le32(*buf);
1239 pci_dma_write(&ehci->dev, addr, &tmp, sizeof(tmp));
1247 static int ehci_qh_do_overlay(EHCIQueue *q)
1249 EHCIPacket *p = QTAILQ_FIRST(&q->packets);
1257 assert(p->qtdaddr == q->qtdaddr);
1259 // remember values in fields to preserve in qh after overlay
1261 dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE;
1262 ping = q->qh.token & QTD_TOKEN_PING;
1264 q->qh.current_qtd = p->qtdaddr;
1265 q->qh.next_qtd = p->qtd.next;
1266 q->qh.altnext_qtd = p->qtd.altnext;
1267 q->qh.token = p->qtd.token;
1270 eps = get_field(q->qh.epchar, QH_EPCHAR_EPS);
1271 if (eps == EHCI_QH_EPS_HIGH) {
1272 q->qh.token &= ~QTD_TOKEN_PING;
1273 q->qh.token |= ping;
1276 reload = get_field(q->qh.epchar, QH_EPCHAR_RL);
1277 set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT);
1279 for (i = 0; i < 5; i++) {
1280 q->qh.bufptr[i] = p->qtd.bufptr[i];
1283 if (!(q->qh.epchar & QH_EPCHAR_DTC)) {
1284 // preserve QH DT bit
1285 q->qh.token &= ~QTD_TOKEN_DTOGGLE;
1286 q->qh.token |= dtoggle;
1289 q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK;
1290 q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK;
1292 put_dwords(q->ehci, NLPTR_GET(q->qhaddr), (uint32_t *) &q->qh,
1293 sizeof(EHCIqh) >> 2);
1298 static int ehci_init_transfer(EHCIPacket *p)
1300 uint32_t cpage, offset, bytes, plen;
1303 cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE);
1304 bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES);
1305 offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK;
1306 pci_dma_sglist_init(&p->sgl, &p->queue->ehci->dev, 5);
1310 fprintf(stderr, "cpage out of range (%d)\n", cpage);
1311 return USB_RET_PROCERR;
1314 page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK;
1317 if (plen > 4096 - offset) {
1318 plen = 4096 - offset;
1323 qemu_sglist_add(&p->sgl, page, plen);
1329 static void ehci_finish_transfer(EHCIQueue *q, int status)
1331 uint32_t cpage, offset;
1334 /* update cpage & offset */
1335 cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE);
1336 offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK;
1339 cpage += offset >> QTD_BUFPTR_SH;
1340 offset &= ~QTD_BUFPTR_MASK;
1342 set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE);
1343 q->qh.bufptr[0] &= QTD_BUFPTR_MASK;
1344 q->qh.bufptr[0] |= offset;
1348 static void ehci_async_complete_packet(USBPort *port, USBPacket *packet)
1351 EHCIState *s = port->opaque;
1352 uint32_t portsc = s->portsc[port->index];
1354 if (portsc & PORTSC_POWNER) {
1355 USBPort *companion = s->companion_ports[port->index];
1356 companion->ops->complete(companion, packet);
1360 p = container_of(packet, EHCIPacket, packet);
1361 trace_usb_ehci_packet_action(p->queue, p, "wakeup");
1362 assert(p->async == EHCI_ASYNC_INFLIGHT);
1363 p->async = EHCI_ASYNC_FINISHED;
1364 p->usb_status = packet->result;
1366 if (p->queue->async) {
1367 qemu_bh_schedule(p->queue->ehci->async_bh);
1371 static void ehci_execute_complete(EHCIQueue *q)
1373 EHCIPacket *p = QTAILQ_FIRST(&q->packets);
1376 assert(p->qtdaddr == q->qtdaddr);
1377 assert(p->async != EHCI_ASYNC_INFLIGHT);
1378 p->async = EHCI_ASYNC_NONE;
1380 DPRINTF("execute_complete: qhaddr 0x%x, next %x, qtdaddr 0x%x, status %d\n",
1381 q->qhaddr, q->qh.next, q->qtdaddr, q->usb_status);
1383 if (p->usb_status < 0) {
1384 switch (p->usb_status) {
1385 case USB_RET_IOERROR:
1387 q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR);
1388 set_field(&q->qh.token, 0, QTD_TOKEN_CERR);
1389 ehci_record_interrupt(q->ehci, USBSTS_ERRINT);
1392 q->qh.token |= QTD_TOKEN_HALT;
1393 ehci_record_interrupt(q->ehci, USBSTS_ERRINT);
1396 set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT);
1397 return; /* We're not done yet with this transaction */
1398 case USB_RET_BABBLE:
1399 q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE);
1400 ehci_record_interrupt(q->ehci, USBSTS_ERRINT);
1403 /* should not be triggerable */
1404 fprintf(stderr, "USB invalid response %d\n", p->usb_status);
1408 } else if ((p->usb_status > p->tbytes) && (p->pid == USB_TOKEN_IN)) {
1409 p->usb_status = USB_RET_BABBLE;
1410 q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE);
1411 ehci_record_interrupt(q->ehci, USBSTS_ERRINT);
1413 // TODO check 4.12 for splits
1415 if (p->tbytes && p->pid == USB_TOKEN_IN) {
1416 p->tbytes -= p->usb_status;
1421 DPRINTF("updating tbytes to %d\n", p->tbytes);
1422 set_field(&q->qh.token, p->tbytes, QTD_TOKEN_TBYTES);
1424 ehci_finish_transfer(q, p->usb_status);
1425 qemu_sglist_destroy(&p->sgl);
1426 usb_packet_unmap(&p->packet);
1428 q->qh.token ^= QTD_TOKEN_DTOGGLE;
1429 q->qh.token &= ~QTD_TOKEN_ACTIVE;
1431 if (q->qh.token & QTD_TOKEN_IOC) {
1432 ehci_record_interrupt(q->ehci, USBSTS_INT);
1438 static int ehci_execute(EHCIPacket *p, const char *action)
1444 if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) {
1445 fprintf(stderr, "Attempting to execute inactive qtd\n");
1446 return USB_RET_PROCERR;
1449 p->tbytes = (p->qtd.token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH;
1450 if (p->tbytes > BUFF_SIZE) {
1451 fprintf(stderr, "Request for more bytes than allowed\n");
1452 return USB_RET_PROCERR;
1455 p->pid = (p->qtd.token & QTD_TOKEN_PID_MASK) >> QTD_TOKEN_PID_SH;
1458 p->pid = USB_TOKEN_OUT;
1461 p->pid = USB_TOKEN_IN;
1464 p->pid = USB_TOKEN_SETUP;
1467 fprintf(stderr, "bad token\n");
1471 if (ehci_init_transfer(p) != 0) {
1472 return USB_RET_PROCERR;
1475 endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP);
1476 ep = usb_ep_get(p->queue->dev, p->pid, endp);
1478 usb_packet_setup(&p->packet, p->pid, ep);
1479 usb_packet_map(&p->packet, &p->sgl);
1481 trace_usb_ehci_packet_action(p->queue, p, action);
1482 ret = usb_handle_packet(p->queue->dev, &p->packet);
1483 DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd "
1484 "(total %d) endp %x ret %d\n",
1485 q->qhaddr, q->qh.next, q->qtdaddr, q->pid,
1486 q->packet.iov.size, q->tbytes, endp, ret);
1488 if (ret > BUFF_SIZE) {
1489 fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n");
1490 return USB_RET_PROCERR;
1499 static int ehci_process_itd(EHCIState *ehci,
1505 uint32_t i, len, pid, dir, devaddr, endp;
1506 uint32_t pg, off, ptr1, ptr2, max, mult;
1508 dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION);
1509 devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR);
1510 endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP);
1511 max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT);
1512 mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT);
1514 for(i = 0; i < 8; i++) {
1515 if (itd->transact[i] & ITD_XACT_ACTIVE) {
1516 pg = get_field(itd->transact[i], ITD_XACT_PGSEL);
1517 off = itd->transact[i] & ITD_XACT_OFFSET_MASK;
1518 ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK);
1519 ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK);
1520 len = get_field(itd->transact[i], ITD_XACT_LENGTH);
1522 if (len > max * mult) {
1526 if (len > BUFF_SIZE) {
1527 return USB_RET_PROCERR;
1530 pci_dma_sglist_init(&ehci->isgl, &ehci->dev, 2);
1531 if (off + len > 4096) {
1532 /* transfer crosses page border */
1533 uint32_t len2 = off + len - 4096;
1534 uint32_t len1 = len - len2;
1535 qemu_sglist_add(&ehci->isgl, ptr1 + off, len1);
1536 qemu_sglist_add(&ehci->isgl, ptr2, len2);
1538 qemu_sglist_add(&ehci->isgl, ptr1 + off, len);
1541 pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT;
1543 dev = ehci_find_device(ehci, devaddr);
1544 ep = usb_ep_get(dev, pid, endp);
1545 if (ep->type == USB_ENDPOINT_XFER_ISOC) {
1546 usb_packet_setup(&ehci->ipacket, pid, ep);
1547 usb_packet_map(&ehci->ipacket, &ehci->isgl);
1548 ret = usb_handle_packet(dev, &ehci->ipacket);
1549 assert(ret != USB_RET_ASYNC);
1550 usb_packet_unmap(&ehci->ipacket);
1552 DPRINTF("ISOCH: attempt to addess non-iso endpoint\n");
1555 qemu_sglist_destroy(&ehci->isgl);
1560 fprintf(stderr, "Unexpected iso usb result: %d\n", ret);
1562 case USB_RET_IOERROR:
1564 /* 3.3.2: XACTERR is only allowed on IN transactions */
1566 itd->transact[i] |= ITD_XACT_XACTERR;
1567 ehci_record_interrupt(ehci, USBSTS_ERRINT);
1570 case USB_RET_BABBLE:
1571 itd->transact[i] |= ITD_XACT_BABBLE;
1572 ehci_record_interrupt(ehci, USBSTS_ERRINT);
1575 /* no data for us, so do a zero-length transfer */
1583 set_field(&itd->transact[i], len - ret, ITD_XACT_LENGTH);
1586 set_field(&itd->transact[i], ret, ITD_XACT_LENGTH);
1589 if (itd->transact[i] & ITD_XACT_IOC) {
1590 ehci_record_interrupt(ehci, USBSTS_INT);
1592 itd->transact[i] &= ~ITD_XACT_ACTIVE;
1600 * Write the qh back to guest physical memory. This step isn't
1601 * in the EHCI spec but we need to do it since we don't share
1602 * physical memory with our guest VM.
1604 * The first three dwords are read-only for the EHCI, so skip them
1605 * when writing back the qh.
1607 static void ehci_flush_qh(EHCIQueue *q)
1609 uint32_t *qh = (uint32_t *) &q->qh;
1610 uint32_t dwords = sizeof(EHCIqh) >> 2;
1611 uint32_t addr = NLPTR_GET(q->qhaddr);
1613 put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3);
1616 /* This state is the entry point for asynchronous schedule
1617 * processing. Entry here consitutes a EHCI start event state (4.8.5)
1619 static int ehci_state_waitlisthead(EHCIState *ehci, int async)
1624 uint32_t entry = ehci->asynclistaddr;
1626 /* set reclamation flag at start event (4.8.6) */
1628 ehci_set_usbsts(ehci, USBSTS_REC);
1631 ehci_queues_rip_unused(ehci, async, 0);
1633 /* Find the head of the list (4.9.1.1) */
1634 for(i = 0; i < MAX_QH; i++) {
1635 get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh,
1636 sizeof(EHCIqh) >> 2);
1637 ehci_trace_qh(NULL, NLPTR_GET(entry), &qh);
1639 if (qh.epchar & QH_EPCHAR_H) {
1641 entry |= (NLPTR_TYPE_QH << 1);
1644 ehci_set_fetch_addr(ehci, async, entry);
1645 ehci_set_state(ehci, async, EST_FETCHENTRY);
1651 if (entry == ehci->asynclistaddr) {
1656 /* no head found for list. */
1658 ehci_set_state(ehci, async, EST_ACTIVE);
1665 /* This state is the entry point for periodic schedule processing as
1666 * well as being a continuation state for async processing.
1668 static int ehci_state_fetchentry(EHCIState *ehci, int async)
1671 uint32_t entry = ehci_get_fetch_addr(ehci, async);
1673 if (NLPTR_TBIT(entry)) {
1674 ehci_set_state(ehci, async, EST_ACTIVE);
1678 /* section 4.8, only QH in async schedule */
1679 if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) {
1680 fprintf(stderr, "non queue head request in async schedule\n");
1684 switch (NLPTR_TYPE_GET(entry)) {
1686 ehci_set_state(ehci, async, EST_FETCHQH);
1690 case NLPTR_TYPE_ITD:
1691 ehci_set_state(ehci, async, EST_FETCHITD);
1695 case NLPTR_TYPE_STITD:
1696 ehci_set_state(ehci, async, EST_FETCHSITD);
1701 /* TODO: handle FSTN type */
1702 fprintf(stderr, "FETCHENTRY: entry at %X is of type %d "
1703 "which is not supported yet\n", entry, NLPTR_TYPE_GET(entry));
1711 static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async)
1714 uint32_t entry, devaddr;
1717 entry = ehci_get_fetch_addr(ehci, async);
1718 q = ehci_find_queue_by_qh(ehci, entry, async);
1720 q = ehci_alloc_queue(ehci, entry, async);
1722 p = QTAILQ_FIRST(&q->packets);
1726 /* we are going in circles -- stop processing */
1727 ehci_set_state(ehci, async, EST_ACTIVE);
1732 get_dwords(ehci, NLPTR_GET(q->qhaddr),
1733 (uint32_t *) &q->qh, sizeof(EHCIqh) >> 2);
1734 ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &q->qh);
1736 devaddr = get_field(q->qh.epchar, QH_EPCHAR_DEVADDR);
1737 if (q->dev != NULL && q->dev->addr != devaddr) {
1738 if (!QTAILQ_EMPTY(&q->packets)) {
1739 /* should not happen (guest bug) */
1740 while ((p = QTAILQ_FIRST(&q->packets)) != NULL) {
1741 ehci_free_packet(p);
1746 if (q->dev == NULL) {
1747 q->dev = ehci_find_device(q->ehci, devaddr);
1750 if (p && p->async == EHCI_ASYNC_INFLIGHT) {
1751 /* I/O still in progress -- skip queue */
1752 ehci_set_state(ehci, async, EST_HORIZONTALQH);
1755 if (p && p->async == EHCI_ASYNC_FINISHED) {
1756 /* I/O finished -- continue processing queue */
1757 trace_usb_ehci_packet_action(p->queue, p, "complete");
1758 ehci_set_state(ehci, async, EST_EXECUTING);
1762 if (async && (q->qh.epchar & QH_EPCHAR_H)) {
1764 /* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */
1765 if (ehci->usbsts & USBSTS_REC) {
1766 ehci_clear_usbsts(ehci, USBSTS_REC);
1768 DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset"
1769 " - done processing\n", q->qhaddr);
1770 ehci_set_state(ehci, async, EST_ACTIVE);
1777 if (q->qhaddr != q->qh.next) {
1778 DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n",
1780 q->qh.epchar & QH_EPCHAR_H,
1781 q->qh.token & QTD_TOKEN_HALT,
1782 q->qh.token & QTD_TOKEN_ACTIVE,
1787 if (q->qh.token & QTD_TOKEN_HALT) {
1788 ehci_set_state(ehci, async, EST_HORIZONTALQH);
1790 } else if ((q->qh.token & QTD_TOKEN_ACTIVE) &&
1791 (NLPTR_TBIT(q->qh.current_qtd) == 0)) {
1792 q->qtdaddr = q->qh.current_qtd;
1793 ehci_set_state(ehci, async, EST_FETCHQTD);
1796 /* EHCI spec version 1.0 Section 4.10.2 */
1797 ehci_set_state(ehci, async, EST_ADVANCEQUEUE);
1804 static int ehci_state_fetchitd(EHCIState *ehci, int async)
1810 entry = ehci_get_fetch_addr(ehci, async);
1812 get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd,
1813 sizeof(EHCIitd) >> 2);
1814 ehci_trace_itd(ehci, entry, &itd);
1816 if (ehci_process_itd(ehci, &itd) != 0) {
1820 put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd,
1821 sizeof(EHCIitd) >> 2);
1822 ehci_set_fetch_addr(ehci, async, itd.next);
1823 ehci_set_state(ehci, async, EST_FETCHENTRY);
1828 static int ehci_state_fetchsitd(EHCIState *ehci, int async)
1834 entry = ehci_get_fetch_addr(ehci, async);
1836 get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd,
1837 sizeof(EHCIsitd) >> 2);
1838 ehci_trace_sitd(ehci, entry, &sitd);
1840 if (!(sitd.results & SITD_RESULTS_ACTIVE)) {
1841 /* siTD is not active, nothing to do */;
1843 /* TODO: split transfers are not implemented */
1844 fprintf(stderr, "WARNING: Skipping active siTD\n");
1847 ehci_set_fetch_addr(ehci, async, sitd.next);
1848 ehci_set_state(ehci, async, EST_FETCHENTRY);
1852 /* Section 4.10.2 - paragraph 3 */
1853 static int ehci_state_advqueue(EHCIQueue *q)
1856 /* TO-DO: 4.10.2 - paragraph 2
1857 * if I-bit is set to 1 and QH is not active
1858 * go to horizontal QH
1861 ehci_set_state(ehci, async, EST_HORIZONTALQH);
1867 * want data and alt-next qTD is valid
1869 if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) &&
1870 (NLPTR_TBIT(q->qh.altnext_qtd) == 0)) {
1871 q->qtdaddr = q->qh.altnext_qtd;
1872 ehci_set_state(q->ehci, q->async, EST_FETCHQTD);
1877 } else if (NLPTR_TBIT(q->qh.next_qtd) == 0) {
1878 q->qtdaddr = q->qh.next_qtd;
1879 ehci_set_state(q->ehci, q->async, EST_FETCHQTD);
1882 * no valid qTD, try next QH
1885 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
1891 /* Section 4.10.2 - paragraph 4 */
1892 static int ehci_state_fetchqtd(EHCIQueue *q)
1898 get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd,
1899 sizeof(EHCIqtd) >> 2);
1900 ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd);
1902 p = QTAILQ_FIRST(&q->packets);
1903 while (p != NULL && p->qtdaddr != q->qtdaddr) {
1904 /* should not happen (guest bug) */
1905 ehci_free_packet(p);
1906 p = QTAILQ_FIRST(&q->packets);
1909 ehci_qh_do_overlay(q);
1911 if (p->async == EHCI_ASYNC_INFLIGHT) {
1912 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
1914 ehci_set_state(q->ehci, q->async, EST_EXECUTING);
1917 } else if (qtd.token & QTD_TOKEN_ACTIVE) {
1918 p = ehci_alloc_packet(q);
1919 p->qtdaddr = q->qtdaddr;
1921 ehci_set_state(q->ehci, q->async, EST_EXECUTE);
1924 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
1931 static int ehci_state_horizqh(EHCIQueue *q)
1935 if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) {
1936 ehci_set_fetch_addr(q->ehci, q->async, q->qh.next);
1937 ehci_set_state(q->ehci, q->async, EST_FETCHENTRY);
1940 ehci_set_state(q->ehci, q->async, EST_ACTIVE);
1946 static void ehci_fill_queue(EHCIPacket *p)
1948 EHCIQueue *q = p->queue;
1949 EHCIqtd qtd = p->qtd;
1953 if (NLPTR_TBIT(qtd.altnext) == 0) {
1956 if (NLPTR_TBIT(qtd.next) != 0) {
1960 get_dwords(q->ehci, NLPTR_GET(qtdaddr),
1961 (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2);
1962 ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd);
1963 if (!(qtd.token & QTD_TOKEN_ACTIVE)) {
1966 p = ehci_alloc_packet(q);
1967 p->qtdaddr = qtdaddr;
1969 p->usb_status = ehci_execute(p, "queue");
1970 assert(p->usb_status = USB_RET_ASYNC);
1971 p->async = EHCI_ASYNC_INFLIGHT;
1975 static int ehci_state_execute(EHCIQueue *q)
1977 EHCIPacket *p = QTAILQ_FIRST(&q->packets);
1981 assert(p->qtdaddr == q->qtdaddr);
1983 if (ehci_qh_do_overlay(q) != 0) {
1987 // TODO verify enough time remains in the uframe as in 4.4.1.1
1988 // TODO write back ptr to async list when done or out of time
1989 // TODO Windows does not seem to ever set the MULT field
1992 int transactCtr = get_field(q->qh.epcap, QH_EPCAP_MULT);
1994 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
2001 ehci_set_usbsts(q->ehci, USBSTS_REC);
2004 p->usb_status = ehci_execute(p, "process");
2005 if (p->usb_status == USB_RET_PROCERR) {
2009 if (p->usb_status == USB_RET_ASYNC) {
2011 trace_usb_ehci_packet_action(p->queue, p, "async");
2012 p->async = EHCI_ASYNC_INFLIGHT;
2013 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
2019 ehci_set_state(q->ehci, q->async, EST_EXECUTING);
2026 static int ehci_state_executing(EHCIQueue *q)
2028 EHCIPacket *p = QTAILQ_FIRST(&q->packets);
2032 assert(p->qtdaddr == q->qtdaddr);
2034 ehci_execute_complete(q);
2035 if (p->usb_status == USB_RET_ASYNC) {
2038 if (p->usb_status == USB_RET_PROCERR) {
2045 int transactCtr = get_field(q->qh.epcap, QH_EPCAP_MULT);
2047 set_field(&q->qh.epcap, transactCtr, QH_EPCAP_MULT);
2048 // 4.10.3, bottom of page 82, should exit this state when transaction
2049 // counter decrements to 0
2053 if (p->usb_status == USB_RET_NAK) {
2054 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
2056 ehci_set_state(q->ehci, q->async, EST_WRITEBACK);
2067 static int ehci_state_writeback(EHCIQueue *q)
2069 EHCIPacket *p = QTAILQ_FIRST(&q->packets);
2072 /* Write back the QTD from the QH area */
2074 assert(p->qtdaddr == q->qtdaddr);
2076 ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd);
2077 put_dwords(q->ehci, NLPTR_GET(p->qtdaddr), (uint32_t *) &q->qh.next_qtd,
2078 sizeof(EHCIqtd) >> 2);
2079 ehci_free_packet(p);
2082 * EHCI specs say go horizontal here.
2084 * We can also advance the queue here for performance reasons. We
2085 * need to take care to only take that shortcut in case we've
2086 * processed the qtd just written back without errors, i.e. halt
2089 if (q->qh.token & QTD_TOKEN_HALT) {
2090 ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH);
2093 ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE);
2100 * This is the state machine that is common to both async and periodic
2103 static void ehci_advance_state(EHCIState *ehci, int async)
2105 EHCIQueue *q = NULL;
2109 switch(ehci_get_state(ehci, async)) {
2110 case EST_WAITLISTHEAD:
2111 again = ehci_state_waitlisthead(ehci, async);
2114 case EST_FETCHENTRY:
2115 again = ehci_state_fetchentry(ehci, async);
2119 q = ehci_state_fetchqh(ehci, async);
2121 assert(q->async == async);
2129 again = ehci_state_fetchitd(ehci, async);
2133 again = ehci_state_fetchsitd(ehci, async);
2136 case EST_ADVANCEQUEUE:
2137 again = ehci_state_advqueue(q);
2141 again = ehci_state_fetchqtd(q);
2144 case EST_HORIZONTALQH:
2145 again = ehci_state_horizqh(q);
2149 again = ehci_state_execute(q);
2151 ehci->async_stepdown = 0;
2158 ehci->async_stepdown = 0;
2160 again = ehci_state_executing(q);
2165 again = ehci_state_writeback(q);
2169 fprintf(stderr, "Bad state!\n");
2176 fprintf(stderr, "processing error - resetting ehci HC\n");
2183 ehci_commit_interrupt(ehci);
2186 static void ehci_advance_async_state(EHCIState *ehci)
2188 const int async = 1;
2190 switch(ehci_get_state(ehci, async)) {
2192 if (!ehci_async_enabled(ehci)) {
2195 ehci_set_state(ehci, async, EST_ACTIVE);
2196 // No break, fall through to ACTIVE
2199 if (!ehci_async_enabled(ehci)) {
2200 ehci_queues_rip_all(ehci, async);
2201 ehci_set_state(ehci, async, EST_INACTIVE);
2205 /* make sure guest has acknowledged the doorbell interrupt */
2206 /* TO-DO: is this really needed? */
2207 if (ehci->usbsts & USBSTS_IAA) {
2208 DPRINTF("IAA status bit still set.\n");
2212 /* check that address register has been set */
2213 if (ehci->asynclistaddr == 0) {
2217 ehci_set_state(ehci, async, EST_WAITLISTHEAD);
2218 ehci_advance_state(ehci, async);
2220 /* If the doorbell is set, the guest wants to make a change to the
2221 * schedule. The host controller needs to release cached data.
2224 if (ehci->usbcmd & USBCMD_IAAD) {
2225 /* Remove all unseen qhs from the async qhs queue */
2226 ehci_queues_rip_unused(ehci, async, 1);
2227 DPRINTF("ASYNC: doorbell request acknowledged\n");
2228 ehci->usbcmd &= ~USBCMD_IAAD;
2229 ehci_set_interrupt(ehci, USBSTS_IAA);
2234 /* this should only be due to a developer mistake */
2235 fprintf(stderr, "ehci: Bad asynchronous state %d. "
2236 "Resetting to active\n", ehci->astate);
2241 static void ehci_advance_periodic_state(EHCIState *ehci)
2245 const int async = 0;
2249 switch(ehci_get_state(ehci, async)) {
2251 if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) {
2252 ehci_set_state(ehci, async, EST_ACTIVE);
2253 // No break, fall through to ACTIVE
2258 if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) {
2259 ehci_queues_rip_all(ehci, async);
2260 ehci_set_state(ehci, async, EST_INACTIVE);
2264 list = ehci->periodiclistbase & 0xfffff000;
2265 /* check that register has been set */
2269 list |= ((ehci->frindex & 0x1ff8) >> 1);
2271 pci_dma_read(&ehci->dev, list, &entry, sizeof entry);
2272 entry = le32_to_cpu(entry);
2274 DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n",
2275 ehci->frindex / 8, list, entry);
2276 ehci_set_fetch_addr(ehci, async,entry);
2277 ehci_set_state(ehci, async, EST_FETCHENTRY);
2278 ehci_advance_state(ehci, async);
2279 ehci_queues_rip_unused(ehci, async, 0);
2283 /* this should only be due to a developer mistake */
2284 fprintf(stderr, "ehci: Bad periodic state %d. "
2285 "Resetting to active\n", ehci->pstate);
2290 static void ehci_update_frindex(EHCIState *ehci, int frames)
2294 if (!ehci_enabled(ehci)) {
2298 for (i = 0; i < frames; i++) {
2301 if (ehci->frindex == 0x00002000) {
2302 ehci_set_interrupt(ehci, USBSTS_FLR);
2305 if (ehci->frindex == 0x00004000) {
2306 ehci_set_interrupt(ehci, USBSTS_FLR);
2312 static void ehci_frame_timer(void *opaque)
2314 EHCIState *ehci = opaque;
2316 int64_t expire_time, t_now;
2317 uint64_t ns_elapsed;
2318 int frames, skipped_frames;
2321 t_now = qemu_get_clock_ns(vm_clock);
2322 ns_elapsed = t_now - ehci->last_run_ns;
2323 frames = ns_elapsed / FRAME_TIMER_NS;
2325 if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) {
2327 expire_time = t_now + (get_ticks_per_sec() / FRAME_TIMER_FREQ);
2329 if (frames > ehci->maxframes) {
2330 skipped_frames = frames - ehci->maxframes;
2331 ehci_update_frindex(ehci, skipped_frames);
2332 ehci->last_run_ns += FRAME_TIMER_NS * skipped_frames;
2333 frames -= skipped_frames;
2334 DPRINTF("WARNING - EHCI skipped %d frames\n", skipped_frames);
2337 for (i = 0; i < frames; i++) {
2338 ehci_update_frindex(ehci, 1);
2339 ehci_advance_periodic_state(ehci);
2340 ehci->last_run_ns += FRAME_TIMER_NS;
2343 if (ehci->async_stepdown < ehci->maxframes / 2) {
2344 ehci->async_stepdown++;
2346 expire_time = t_now + (get_ticks_per_sec()
2347 * ehci->async_stepdown / FRAME_TIMER_FREQ);
2348 ehci_update_frindex(ehci, frames);
2349 ehci->last_run_ns += FRAME_TIMER_NS * frames;
2352 /* Async is not inside loop since it executes everything it can once
2355 if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) {
2357 qemu_bh_schedule(ehci->async_bh);
2361 qemu_mod_timer(ehci->frame_timer, expire_time);
2365 static void ehci_async_bh(void *opaque)
2367 EHCIState *ehci = opaque;
2368 ehci_advance_async_state(ehci);
2371 static const MemoryRegionOps ehci_mem_ops = {
2373 .read = { ehci_mem_readb, ehci_mem_readw, ehci_mem_readl },
2374 .write = { ehci_mem_writeb, ehci_mem_writew, ehci_mem_writel },
2376 .endianness = DEVICE_LITTLE_ENDIAN,
2379 static int usb_ehci_initfn(PCIDevice *dev);
2381 static USBPortOps ehci_port_ops = {
2382 .attach = ehci_attach,
2383 .detach = ehci_detach,
2384 .child_detach = ehci_child_detach,
2385 .wakeup = ehci_wakeup,
2386 .complete = ehci_async_complete_packet,
2389 static USBBusOps ehci_bus_ops = {
2390 .register_companion = ehci_register_companion,
2393 static const VMStateDescription vmstate_ehci = {
2398 static Property ehci_properties[] = {
2399 DEFINE_PROP_UINT32("maxframes", EHCIState, maxframes, 128),
2400 DEFINE_PROP_END_OF_LIST(),
2403 static void ehci_class_init(ObjectClass *klass, void *data)
2405 DeviceClass *dc = DEVICE_CLASS(klass);
2406 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2408 k->init = usb_ehci_initfn;
2409 k->vendor_id = PCI_VENDOR_ID_INTEL;
2410 k->device_id = PCI_DEVICE_ID_INTEL_82801D; /* ich4 */
2412 k->class_id = PCI_CLASS_SERIAL_USB;
2413 dc->vmsd = &vmstate_ehci;
2414 dc->props = ehci_properties;
2417 static TypeInfo ehci_info = {
2419 .parent = TYPE_PCI_DEVICE,
2420 .instance_size = sizeof(EHCIState),
2421 .class_init = ehci_class_init,
2424 static void ich9_ehci_class_init(ObjectClass *klass, void *data)
2426 DeviceClass *dc = DEVICE_CLASS(klass);
2427 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
2429 k->init = usb_ehci_initfn;
2430 k->vendor_id = PCI_VENDOR_ID_INTEL;
2431 k->device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1;
2433 k->class_id = PCI_CLASS_SERIAL_USB;
2434 dc->vmsd = &vmstate_ehci;
2435 dc->props = ehci_properties;
2438 static TypeInfo ich9_ehci_info = {
2439 .name = "ich9-usb-ehci1",
2440 .parent = TYPE_PCI_DEVICE,
2441 .instance_size = sizeof(EHCIState),
2442 .class_init = ich9_ehci_class_init,
2445 static int usb_ehci_initfn(PCIDevice *dev)
2447 EHCIState *s = DO_UPCAST(EHCIState, dev, dev);
2448 uint8_t *pci_conf = s->dev.config;
2451 pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
2453 /* capabilities pointer */
2454 pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
2455 //pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50);
2457 pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */
2458 pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
2459 pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
2461 // pci_conf[0x50] = 0x01; // power management caps
2463 pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); // release number (2.1.4)
2464 pci_set_byte(&pci_conf[0x61], 0x20); // frame length adjustment (2.1.5)
2465 pci_set_word(&pci_conf[0x62], 0x00); // port wake up capability (2.1.6)
2467 pci_conf[0x64] = 0x00;
2468 pci_conf[0x65] = 0x00;
2469 pci_conf[0x66] = 0x00;
2470 pci_conf[0x67] = 0x00;
2471 pci_conf[0x68] = 0x01;
2472 pci_conf[0x69] = 0x00;
2473 pci_conf[0x6a] = 0x00;
2474 pci_conf[0x6b] = 0x00; // USBLEGSUP
2475 pci_conf[0x6c] = 0x00;
2476 pci_conf[0x6d] = 0x00;
2477 pci_conf[0x6e] = 0x00;
2478 pci_conf[0x6f] = 0xc0; // USBLEFCTLSTS
2480 // 2.2 host controller interface version
2481 s->mmio[0x00] = (uint8_t) OPREGBASE;
2482 s->mmio[0x01] = 0x00;
2483 s->mmio[0x02] = 0x00;
2484 s->mmio[0x03] = 0x01; // HC version
2485 s->mmio[0x04] = NB_PORTS; // Number of downstream ports
2486 s->mmio[0x05] = 0x00; // No companion ports at present
2487 s->mmio[0x06] = 0x00;
2488 s->mmio[0x07] = 0x00;
2489 s->mmio[0x08] = 0x80; // We can cache whole frame, not 64-bit capable
2490 s->mmio[0x09] = 0x68; // EECP
2491 s->mmio[0x0a] = 0x00;
2492 s->mmio[0x0b] = 0x00;
2494 s->irq = s->dev.irq[3];
2496 usb_bus_new(&s->bus, &ehci_bus_ops, &s->dev.qdev);
2497 for(i = 0; i < NB_PORTS; i++) {
2498 usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops,
2499 USB_SPEED_MASK_HIGH);
2500 s->ports[i].dev = 0;
2503 s->frame_timer = qemu_new_timer_ns(vm_clock, ehci_frame_timer, s);
2504 s->async_bh = qemu_bh_new(ehci_async_bh, s);
2505 QTAILQ_INIT(&s->aqueues);
2506 QTAILQ_INIT(&s->pqueues);
2508 qemu_register_reset(ehci_reset, s);
2510 memory_region_init_io(&s->mem, &ehci_mem_ops, s, "ehci", MMIO_SIZE);
2511 pci_register_bar(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
2516 static void ehci_register_types(void)
2518 type_register_static(&ehci_info);
2519 type_register_static(&ich9_ehci_info);
2522 type_init(ehci_register_types)
2525 * vim: expandtab ts=4