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xhci: allow disabling interrupters
[qemu.git] / hw / usb / hcd-xhci.c
CommitLineData
62c6ae04
HM		 1/*
2 * USB xHCI controller emulation
3 *
4 * Copyright (c) 2011 Securiforest
5 * Date: 2011-05-11 ; Author: Hector Martin <hector@marcansoft.com>
6 * Based on usb-ohci.c, emulates Renesas NEC USB 3.0
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 */
f1ae32a1 21#include "hw/hw.h"
62c6ae04 22#include "qemu-timer.h"
f1ae32a1
GH		 23#include "hw/usb.h"
24#include "hw/pci.h"
f1ae32a1 25#include "hw/msi.h"
4c47f800 26#include "hw/msix.h"
2d754a10 27#include "trace.h"
62c6ae04
HM		 28
29//#define DEBUG_XHCI
30//#define DEBUG_DATA
31
32#ifdef DEBUG_XHCI
33#define DPRINTF(...) fprintf(stderr, __VA_ARGS__)
34#else
35#define DPRINTF(...) do {} while (0)
36#endif
37#define FIXME() do { fprintf(stderr, "FIXME %s:%d\n", \
38 __func__, __LINE__); abort(); } while (0)
39
d95e74ea
GH		 40#define MAXPORTS_2 15
41#define MAXPORTS_3 15
62c6ae04 42
0846e635 43#define MAXPORTS (MAXPORTS_2+MAXPORTS_3)
d95e74ea
GH		 44#define MAXSLOTS 64
45#define MAXINTRS 16
62c6ae04
HM		 46
47#define TD_QUEUE 24
62c6ae04
HM		 48
49/* Very pessimistic, let's hope it's enough for all cases */
50#define EV_QUEUE (((3*TD_QUEUE)+16)*MAXSLOTS)
51/* Do not deliver ER Full events. NEC's driver does some things not bound
52 * to the specs when it gets them */
53#define ER_FULL_HACK
54
55#define LEN_CAP 0x40
62c6ae04 56#define LEN_OPER (0x400 + 0x10 * MAXPORTS)
106b214c 57#define LEN_RUNTIME ((MAXINTRS + 1) * 0x20)
62c6ae04
HM		 58#define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20)
59
106b214c
GH		 60#define OFF_OPER LEN_CAP
61#define OFF_RUNTIME 0x1000
62#define OFF_DOORBELL 0x2000
4c47f800
GH		 63#define OFF_MSIX_TABLE 0x3000
64#define OFF_MSIX_PBA 0x3800
62c6ae04 65/* must be power of 2 */
106b214c 66#define LEN_REGS 0x4000
62c6ae04 67
106b214c
GH		 68#if (OFF_OPER + LEN_OPER) > OFF_RUNTIME
69#error Increase OFF_RUNTIME
70#endif
71#if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL
72#error Increase OFF_DOORBELL
73#endif
62c6ae04
HM		 74#if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS
75# error Increase LEN_REGS
76#endif
77
62c6ae04
HM		 78/* bit definitions */
79#define USBCMD_RS (1<<0)
80#define USBCMD_HCRST (1<<1)
81#define USBCMD_INTE (1<<2)
82#define USBCMD_HSEE (1<<3)
83#define USBCMD_LHCRST (1<<7)
84#define USBCMD_CSS (1<<8)
85#define USBCMD_CRS (1<<9)
86#define USBCMD_EWE (1<<10)
87#define USBCMD_EU3S (1<<11)
88
89#define USBSTS_HCH (1<<0)
90#define USBSTS_HSE (1<<2)
91#define USBSTS_EINT (1<<3)
92#define USBSTS_PCD (1<<4)
93#define USBSTS_SSS (1<<8)
94#define USBSTS_RSS (1<<9)
95#define USBSTS_SRE (1<<10)
96#define USBSTS_CNR (1<<11)
97#define USBSTS_HCE (1<<12)
98
99
100#define PORTSC_CCS (1<<0)
101#define PORTSC_PED (1<<1)
102#define PORTSC_OCA (1<<3)
103#define PORTSC_PR (1<<4)
104#define PORTSC_PLS_SHIFT 5
105#define PORTSC_PLS_MASK 0xf
106#define PORTSC_PP (1<<9)
107#define PORTSC_SPEED_SHIFT 10
108#define PORTSC_SPEED_MASK 0xf
109#define PORTSC_SPEED_FULL (1<<10)
110#define PORTSC_SPEED_LOW (2<<10)
111#define PORTSC_SPEED_HIGH (3<<10)
112#define PORTSC_SPEED_SUPER (4<<10)
113#define PORTSC_PIC_SHIFT 14
114#define PORTSC_PIC_MASK 0x3
115#define PORTSC_LWS (1<<16)
116#define PORTSC_CSC (1<<17)
117#define PORTSC_PEC (1<<18)
118#define PORTSC_WRC (1<<19)
119#define PORTSC_OCC (1<<20)
120#define PORTSC_PRC (1<<21)
121#define PORTSC_PLC (1<<22)
122#define PORTSC_CEC (1<<23)
123#define PORTSC_CAS (1<<24)
124#define PORTSC_WCE (1<<25)
125#define PORTSC_WDE (1<<26)
126#define PORTSC_WOE (1<<27)
127#define PORTSC_DR (1<<30)
128#define PORTSC_WPR (1<<31)
129
130#define CRCR_RCS (1<<0)
131#define CRCR_CS (1<<1)
132#define CRCR_CA (1<<2)
133#define CRCR_CRR (1<<3)
134
135#define IMAN_IP (1<<0)
136#define IMAN_IE (1<<1)
137
138#define ERDP_EHB (1<<3)
139
140#define TRB_SIZE 16
141typedef struct XHCITRB {
142 uint64_t parameter;
143 uint32_t status;
144 uint32_t control;
59a70ccd 145 dma_addr_t addr;
62c6ae04
HM		 146 bool ccs;
147} XHCITRB;
148
149
150typedef enum TRBType {
151 TRB_RESERVED = 0,
152 TR_NORMAL,
153 TR_SETUP,
154 TR_DATA,
155 TR_STATUS,
156 TR_ISOCH,
157 TR_LINK,
158 TR_EVDATA,
159 TR_NOOP,
160 CR_ENABLE_SLOT,
161 CR_DISABLE_SLOT,
162 CR_ADDRESS_DEVICE,
163 CR_CONFIGURE_ENDPOINT,
164 CR_EVALUATE_CONTEXT,
165 CR_RESET_ENDPOINT,
166 CR_STOP_ENDPOINT,
167 CR_SET_TR_DEQUEUE,
168 CR_RESET_DEVICE,
169 CR_FORCE_EVENT,
170 CR_NEGOTIATE_BW,
171 CR_SET_LATENCY_TOLERANCE,
172 CR_GET_PORT_BANDWIDTH,
173 CR_FORCE_HEADER,
174 CR_NOOP,
175 ER_TRANSFER = 32,
176 ER_COMMAND_COMPLETE,
177 ER_PORT_STATUS_CHANGE,
178 ER_BANDWIDTH_REQUEST,
179 ER_DOORBELL,
180 ER_HOST_CONTROLLER,
181 ER_DEVICE_NOTIFICATION,
182 ER_MFINDEX_WRAP,
183 /* vendor specific bits */
184 CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48,
185 CR_VENDOR_NEC_FIRMWARE_REVISION = 49,
186 CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50,
187} TRBType;
188
189#define CR_LINK TR_LINK
190
191typedef enum TRBCCode {
192 CC_INVALID = 0,
193 CC_SUCCESS,
194 CC_DATA_BUFFER_ERROR,
195 CC_BABBLE_DETECTED,
196 CC_USB_TRANSACTION_ERROR,
197 CC_TRB_ERROR,
198 CC_STALL_ERROR,
199 CC_RESOURCE_ERROR,
200 CC_BANDWIDTH_ERROR,
201 CC_NO_SLOTS_ERROR,
202 CC_INVALID_STREAM_TYPE_ERROR,
203 CC_SLOT_NOT_ENABLED_ERROR,
204 CC_EP_NOT_ENABLED_ERROR,
205 CC_SHORT_PACKET,
206 CC_RING_UNDERRUN,
207 CC_RING_OVERRUN,
208 CC_VF_ER_FULL,
209 CC_PARAMETER_ERROR,
210 CC_BANDWIDTH_OVERRUN,
211 CC_CONTEXT_STATE_ERROR,
212 CC_NO_PING_RESPONSE_ERROR,
213 CC_EVENT_RING_FULL_ERROR,
214 CC_INCOMPATIBLE_DEVICE_ERROR,
215 CC_MISSED_SERVICE_ERROR,
216 CC_COMMAND_RING_STOPPED,
217 CC_COMMAND_ABORTED,
218 CC_STOPPED,
219 CC_STOPPED_LENGTH_INVALID,
220 CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR = 29,
221 CC_ISOCH_BUFFER_OVERRUN = 31,
222 CC_EVENT_LOST_ERROR,
223 CC_UNDEFINED_ERROR,
224 CC_INVALID_STREAM_ID_ERROR,
225 CC_SECONDARY_BANDWIDTH_ERROR,
226 CC_SPLIT_TRANSACTION_ERROR
227} TRBCCode;
228
229#define TRB_C (1<<0)
230#define TRB_TYPE_SHIFT 10
231#define TRB_TYPE_MASK 0x3f
232#define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK)
233
234#define TRB_EV_ED (1<<2)
235
236#define TRB_TR_ENT (1<<1)
237#define TRB_TR_ISP (1<<2)
238#define TRB_TR_NS (1<<3)
239#define TRB_TR_CH (1<<4)
240#define TRB_TR_IOC (1<<5)
241#define TRB_TR_IDT (1<<6)
242#define TRB_TR_TBC_SHIFT 7
243#define TRB_TR_TBC_MASK 0x3
244#define TRB_TR_BEI (1<<9)
245#define TRB_TR_TLBPC_SHIFT 16
246#define TRB_TR_TLBPC_MASK 0xf
247#define TRB_TR_FRAMEID_SHIFT 20
248#define TRB_TR_FRAMEID_MASK 0x7ff
249#define TRB_TR_SIA (1<<31)
250
251#define TRB_TR_DIR (1<<16)
252
253#define TRB_CR_SLOTID_SHIFT 24
254#define TRB_CR_SLOTID_MASK 0xff
255#define TRB_CR_EPID_SHIFT 16
256#define TRB_CR_EPID_MASK 0x1f
257
258#define TRB_CR_BSR (1<<9)
259#define TRB_CR_DC (1<<9)
260
261#define TRB_LK_TC (1<<1)
262
2d1de850
GH		 263#define TRB_INTR_SHIFT 22
264#define TRB_INTR_MASK 0x3ff
265#define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK)
266
62c6ae04
HM		 267#define EP_TYPE_MASK 0x7
268#define EP_TYPE_SHIFT 3
269
270#define EP_STATE_MASK 0x7
271#define EP_DISABLED (0<<0)
272#define EP_RUNNING (1<<0)
273#define EP_HALTED (2<<0)
274#define EP_STOPPED (3<<0)
275#define EP_ERROR (4<<0)
276
277#define SLOT_STATE_MASK 0x1f
278#define SLOT_STATE_SHIFT 27
279#define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK)
280#define SLOT_ENABLED 0
281#define SLOT_DEFAULT 1
282#define SLOT_ADDRESSED 2
283#define SLOT_CONFIGURED 3
284
285#define SLOT_CONTEXT_ENTRIES_MASK 0x1f
286#define SLOT_CONTEXT_ENTRIES_SHIFT 27
287
1d8a4e69
GH		 288typedef struct XHCIState XHCIState;
289
62c6ae04
HM		 290typedef enum EPType {
291 ET_INVALID = 0,
292 ET_ISO_OUT,
293 ET_BULK_OUT,
294 ET_INTR_OUT,
295 ET_CONTROL,
296 ET_ISO_IN,
297 ET_BULK_IN,
298 ET_INTR_IN,
299} EPType;
300
301typedef struct XHCIRing {
59a70ccd
DG		 302 dma_addr_t base;
303 dma_addr_t dequeue;
62c6ae04
HM		 304 bool ccs;
305} XHCIRing;
306
307typedef struct XHCIPort {
1d8a4e69 308 XHCIState *xhci;
62c6ae04 309 uint32_t portsc;
0846e635
GH		 310 uint32_t portnr;
311 USBPort *uport;
312 uint32_t speedmask;
1d8a4e69
GH		 313 char name[16];
314 MemoryRegion mem;
62c6ae04
HM		 315} XHCIPort;
316
62c6ae04
HM		 317typedef struct XHCITransfer {
318 XHCIState *xhci;
319 USBPacket packet;
d5a15814 320 QEMUSGList sgl;
7c605a23
GH		 321 bool running_async;
322 bool running_retry;
62c6ae04
HM		 323 bool cancelled;
324 bool complete;
a6fb2ddb 325 bool int_req;
62c6ae04
HM		 326 unsigned int iso_pkts;
327 unsigned int slotid;
328 unsigned int epid;
329 bool in_xfer;
330 bool iso_xfer;
62c6ae04
HM		 331
332 unsigned int trb_count;
333 unsigned int trb_alloced;
334 XHCITRB *trbs;
335
62c6ae04
HM		 336 TRBCCode status;
337
338 unsigned int pkts;
339 unsigned int pktsize;
340 unsigned int cur_pkt;
3d139684
GH		 341
342 uint64_t mfindex_kick;
62c6ae04
HM		 343} XHCITransfer;
344
345typedef struct XHCIEPContext {
3d139684
GH		 346 XHCIState *xhci;
347 unsigned int slotid;
348 unsigned int epid;
349
62c6ae04
HM		 350 XHCIRing ring;
351 unsigned int next_xfer;
352 unsigned int comp_xfer;
353 XHCITransfer transfers[TD_QUEUE];
7c605a23 354 XHCITransfer *retry;
62c6ae04 355 EPType type;
59a70ccd 356 dma_addr_t pctx;
62c6ae04 357 unsigned int max_psize;
62c6ae04 358 uint32_t state;
3d139684
GH		 359
360 /* iso xfer scheduling */
361 unsigned int interval;
362 int64_t mfindex_last;
363 QEMUTimer *kick_timer;
62c6ae04
HM		 364} XHCIEPContext;
365
366typedef struct XHCISlot {
367 bool enabled;
59a70ccd 368 dma_addr_t ctx;
ccaf87a0 369 USBPort *uport;
62c6ae04
HM		 370 unsigned int devaddr;
371 XHCIEPContext * eps[31];
372} XHCISlot;
373
374typedef struct XHCIEvent {
375 TRBType type;
376 TRBCCode ccode;
377 uint64_t ptr;
378 uint32_t length;
379 uint32_t flags;
380 uint8_t slotid;
381 uint8_t epid;
382} XHCIEvent;
383
962d11e1
GH		 384typedef struct XHCIInterrupter {
385 uint32_t iman;
386 uint32_t imod;
387 uint32_t erstsz;
388 uint32_t erstba_low;
389 uint32_t erstba_high;
390 uint32_t erdp_low;
391 uint32_t erdp_high;
392
393 bool msix_used, er_pcs, er_full;
394
395 dma_addr_t er_start;
396 uint32_t er_size;
397 unsigned int er_ep_idx;
398
399 XHCIEvent ev_buffer[EV_QUEUE];
400 unsigned int ev_buffer_put;
401 unsigned int ev_buffer_get;
402
403} XHCIInterrupter;
404
62c6ae04
HM		 405struct XHCIState {
406 PCIDevice pci_dev;
407 USBBus bus;
408 qemu_irq irq;
409 MemoryRegion mem;
1b067564
GH		 410 MemoryRegion mem_cap;
411 MemoryRegion mem_oper;
412 MemoryRegion mem_runtime;
413 MemoryRegion mem_doorbell;
62c6ae04 414 const char *name;
62c6ae04
HM		 415 unsigned int devaddr;
416
0846e635
GH		 417 /* properties */
418 uint32_t numports_2;
419 uint32_t numports_3;
c5e9b02d 420 uint32_t flags;
0846e635 421
62c6ae04
HM		 422 /* Operational Registers */
423 uint32_t usbcmd;
424 uint32_t usbsts;
425 uint32_t dnctrl;
426 uint32_t crcr_low;
427 uint32_t crcr_high;
428 uint32_t dcbaap_low;
429 uint32_t dcbaap_high;
430 uint32_t config;
431
0846e635 432 USBPort uports[MAX(MAXPORTS_2, MAXPORTS_3)];
62c6ae04
HM		 433 XHCIPort ports[MAXPORTS];
434 XHCISlot slots[MAXSLOTS];
0846e635 435 uint32_t numports;
62c6ae04
HM		 436
437 /* Runtime Registers */
01546fa6
GH		 438 int64_t mfindex_start;
439 QEMUTimer *mfwrap_timer;
962d11e1 440 XHCIInterrupter intr[MAXINTRS];
62c6ae04
HM		 441
442 XHCIRing cmd_ring;
443};
444
445typedef struct XHCIEvRingSeg {
446 uint32_t addr_low;
447 uint32_t addr_high;
448 uint32_t size;
449 uint32_t rsvd;
450} XHCIEvRingSeg;
451
c5e9b02d
GH		 452enum xhci_flags {
453 XHCI_FLAG_USE_MSI = 1,
4c47f800 454 XHCI_FLAG_USE_MSI_X,
c5e9b02d
GH		 455};
456
01546fa6
GH		 457static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
458 unsigned int epid);
962d11e1
GH		 459static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v);
460static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v);
01546fa6 461
f10de44e
GH		 462static const char *TRBType_names[] = {
463 [TRB_RESERVED] = "TRB_RESERVED",
464 [TR_NORMAL] = "TR_NORMAL",
465 [TR_SETUP] = "TR_SETUP",
466 [TR_DATA] = "TR_DATA",
467 [TR_STATUS] = "TR_STATUS",
468 [TR_ISOCH] = "TR_ISOCH",
469 [TR_LINK] = "TR_LINK",
470 [TR_EVDATA] = "TR_EVDATA",
471 [TR_NOOP] = "TR_NOOP",
472 [CR_ENABLE_SLOT] = "CR_ENABLE_SLOT",
473 [CR_DISABLE_SLOT] = "CR_DISABLE_SLOT",
474 [CR_ADDRESS_DEVICE] = "CR_ADDRESS_DEVICE",
475 [CR_CONFIGURE_ENDPOINT] = "CR_CONFIGURE_ENDPOINT",
476 [CR_EVALUATE_CONTEXT] = "CR_EVALUATE_CONTEXT",
477 [CR_RESET_ENDPOINT] = "CR_RESET_ENDPOINT",
478 [CR_STOP_ENDPOINT] = "CR_STOP_ENDPOINT",
479 [CR_SET_TR_DEQUEUE] = "CR_SET_TR_DEQUEUE",
480 [CR_RESET_DEVICE] = "CR_RESET_DEVICE",
481 [CR_FORCE_EVENT] = "CR_FORCE_EVENT",
482 [CR_NEGOTIATE_BW] = "CR_NEGOTIATE_BW",
483 [CR_SET_LATENCY_TOLERANCE] = "CR_SET_LATENCY_TOLERANCE",
484 [CR_GET_PORT_BANDWIDTH] = "CR_GET_PORT_BANDWIDTH",
485 [CR_FORCE_HEADER] = "CR_FORCE_HEADER",
486 [CR_NOOP] = "CR_NOOP",
487 [ER_TRANSFER] = "ER_TRANSFER",
488 [ER_COMMAND_COMPLETE] = "ER_COMMAND_COMPLETE",
489 [ER_PORT_STATUS_CHANGE] = "ER_PORT_STATUS_CHANGE",
490 [ER_BANDWIDTH_REQUEST] = "ER_BANDWIDTH_REQUEST",
491 [ER_DOORBELL] = "ER_DOORBELL",
492 [ER_HOST_CONTROLLER] = "ER_HOST_CONTROLLER",
493 [ER_DEVICE_NOTIFICATION] = "ER_DEVICE_NOTIFICATION",
494 [ER_MFINDEX_WRAP] = "ER_MFINDEX_WRAP",
495 [CR_VENDOR_VIA_CHALLENGE_RESPONSE] = "CR_VENDOR_VIA_CHALLENGE_RESPONSE",
496 [CR_VENDOR_NEC_FIRMWARE_REVISION] = "CR_VENDOR_NEC_FIRMWARE_REVISION",
497 [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE",
498};
499
873123fe
GH		 500static const char *TRBCCode_names[] = {
501 [CC_INVALID] = "CC_INVALID",
502 [CC_SUCCESS] = "CC_SUCCESS",
503 [CC_DATA_BUFFER_ERROR] = "CC_DATA_BUFFER_ERROR",
504 [CC_BABBLE_DETECTED] = "CC_BABBLE_DETECTED",
505 [CC_USB_TRANSACTION_ERROR] = "CC_USB_TRANSACTION_ERROR",
506 [CC_TRB_ERROR] = "CC_TRB_ERROR",
507 [CC_STALL_ERROR] = "CC_STALL_ERROR",
508 [CC_RESOURCE_ERROR] = "CC_RESOURCE_ERROR",
509 [CC_BANDWIDTH_ERROR] = "CC_BANDWIDTH_ERROR",
510 [CC_NO_SLOTS_ERROR] = "CC_NO_SLOTS_ERROR",
511 [CC_INVALID_STREAM_TYPE_ERROR] = "CC_INVALID_STREAM_TYPE_ERROR",
512 [CC_SLOT_NOT_ENABLED_ERROR] = "CC_SLOT_NOT_ENABLED_ERROR",
513 [CC_EP_NOT_ENABLED_ERROR] = "CC_EP_NOT_ENABLED_ERROR",
514 [CC_SHORT_PACKET] = "CC_SHORT_PACKET",
515 [CC_RING_UNDERRUN] = "CC_RING_UNDERRUN",
516 [CC_RING_OVERRUN] = "CC_RING_OVERRUN",
517 [CC_VF_ER_FULL] = "CC_VF_ER_FULL",
518 [CC_PARAMETER_ERROR] = "CC_PARAMETER_ERROR",
519 [CC_BANDWIDTH_OVERRUN] = "CC_BANDWIDTH_OVERRUN",
520 [CC_CONTEXT_STATE_ERROR] = "CC_CONTEXT_STATE_ERROR",
521 [CC_NO_PING_RESPONSE_ERROR] = "CC_NO_PING_RESPONSE_ERROR",
522 [CC_EVENT_RING_FULL_ERROR] = "CC_EVENT_RING_FULL_ERROR",
523 [CC_INCOMPATIBLE_DEVICE_ERROR] = "CC_INCOMPATIBLE_DEVICE_ERROR",
524 [CC_MISSED_SERVICE_ERROR] = "CC_MISSED_SERVICE_ERROR",
525 [CC_COMMAND_RING_STOPPED] = "CC_COMMAND_RING_STOPPED",
526 [CC_COMMAND_ABORTED] = "CC_COMMAND_ABORTED",
527 [CC_STOPPED] = "CC_STOPPED",
528 [CC_STOPPED_LENGTH_INVALID] = "CC_STOPPED_LENGTH_INVALID",
529 [CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR]
530 = "CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR",
531 [CC_ISOCH_BUFFER_OVERRUN] = "CC_ISOCH_BUFFER_OVERRUN",
532 [CC_EVENT_LOST_ERROR] = "CC_EVENT_LOST_ERROR",
533 [CC_UNDEFINED_ERROR] = "CC_UNDEFINED_ERROR",
534 [CC_INVALID_STREAM_ID_ERROR] = "CC_INVALID_STREAM_ID_ERROR",
535 [CC_SECONDARY_BANDWIDTH_ERROR] = "CC_SECONDARY_BANDWIDTH_ERROR",
536 [CC_SPLIT_TRANSACTION_ERROR] = "CC_SPLIT_TRANSACTION_ERROR",
537};
538
f10de44e
GH		 539static const char *lookup_name(uint32_t index, const char **list, uint32_t llen)
540{
541 if (index >= llen || list[index] == NULL) {
542 return "???";
543 }
544 return list[index];
545}
546
547static const char *trb_name(XHCITRB *trb)
548{
549 return lookup_name(TRB_TYPE(*trb), TRBType_names,
550 ARRAY_SIZE(TRBType_names));
551}
f10de44e 552
873123fe
GH		 553static const char *event_name(XHCIEvent *event)
554{
555 return lookup_name(event->ccode, TRBCCode_names,
556 ARRAY_SIZE(TRBCCode_names));
557}
558
01546fa6
GH		 559static uint64_t xhci_mfindex_get(XHCIState *xhci)
560{
561 int64_t now = qemu_get_clock_ns(vm_clock);
562 return (now - xhci->mfindex_start) / 125000;
563}
564
565static void xhci_mfwrap_update(XHCIState *xhci)
566{
567 const uint32_t bits = USBCMD_RS | USBCMD_EWE;
568 uint32_t mfindex, left;
569 int64_t now;
570
571 if ((xhci->usbcmd & bits) == bits) {
572 now = qemu_get_clock_ns(vm_clock);
573 mfindex = ((now - xhci->mfindex_start) / 125000) & 0x3fff;
574 left = 0x4000 - mfindex;
575 qemu_mod_timer(xhci->mfwrap_timer, now + left * 125000);
576 } else {
577 qemu_del_timer(xhci->mfwrap_timer);
578 }
579}
580
581static void xhci_mfwrap_timer(void *opaque)
582{
583 XHCIState *xhci = opaque;
584 XHCIEvent wrap = { ER_MFINDEX_WRAP, CC_SUCCESS };
585
962d11e1 586 xhci_event(xhci, &wrap, 0);
01546fa6
GH		 587 xhci_mfwrap_update(xhci);
588}
62c6ae04 589
59a70ccd 590static inline dma_addr_t xhci_addr64(uint32_t low, uint32_t high)
62c6ae04 591{
59a70ccd
DG		 592 if (sizeof(dma_addr_t) == 4) {
593 return low;
594 } else {
595 return low | (((dma_addr_t)high << 16) << 16);
596 }
62c6ae04
HM		 597}
598
59a70ccd 599static inline dma_addr_t xhci_mask64(uint64_t addr)
62c6ae04 600{
59a70ccd
DG		 601 if (sizeof(dma_addr_t) == 4) {
602 return addr & 0xffffffff;
603 } else {
604 return addr;
605 }
62c6ae04
HM		 606}
607
0846e635
GH		 608static XHCIPort *xhci_lookup_port(XHCIState *xhci, struct USBPort *uport)
609{
610 int index;
611
612 if (!uport->dev) {
613 return NULL;
614 }
615 switch (uport->dev->speed) {
616 case USB_SPEED_LOW:
617 case USB_SPEED_FULL:
618 case USB_SPEED_HIGH:
619 index = uport->index;
620 break;
621 case USB_SPEED_SUPER:
622 index = uport->index + xhci->numports_2;
623 break;
624 default:
625 return NULL;
626 }
627 return &xhci->ports[index];
628}
629
4c4abe7c 630static void xhci_intx_update(XHCIState *xhci)
62c6ae04
HM		 631{
632 int level = 0;
633
4c47f800
GH		 634 if (msix_enabled(&xhci->pci_dev) ||
635 msi_enabled(&xhci->pci_dev)) {
4c4abe7c
GH		 636 return;
637 }
638
962d11e1
GH		 639 if (xhci->intr[0].iman & IMAN_IP &&
640 xhci->intr[0].iman & IMAN_IE &&
215bff17 641 xhci->usbcmd & USBCMD_INTE) {
62c6ae04
HM		 642 level = 1;
643 }
644
4c4abe7c
GH		 645 trace_usb_xhci_irq_intx(level);
646 qemu_set_irq(xhci->irq, level);
647}
648
962d11e1 649static void xhci_msix_update(XHCIState *xhci, int v)
4c47f800
GH		 650{
651 bool enabled;
652
653 if (!msix_enabled(&xhci->pci_dev)) {
654 return;
655 }
656
962d11e1
GH		 657 enabled = xhci->intr[v].iman & IMAN_IE;
658 if (enabled == xhci->intr[v].msix_used) {
4c47f800
GH		 659 return;
660 }
661
662 if (enabled) {
962d11e1
GH		 663 trace_usb_xhci_irq_msix_use(v);
664 msix_vector_use(&xhci->pci_dev, v);
665 xhci->intr[v].msix_used = true;
4c47f800 666 } else {
962d11e1
GH		 667 trace_usb_xhci_irq_msix_unuse(v);
668 msix_vector_unuse(&xhci->pci_dev, v);
669 xhci->intr[v].msix_used = false;
4c47f800
GH		 670 }
671}
672
962d11e1 673static void xhci_intr_raise(XHCIState *xhci, int v)
4c4abe7c 674{
962d11e1
GH		 675 xhci->intr[v].erdp_low |= ERDP_EHB;
676 xhci->intr[v].iman |= IMAN_IP;
2cae4119
GH		 677 xhci->usbsts |= USBSTS_EINT;
678
962d11e1 679 if (!(xhci->intr[v].iman & IMAN_IE)) {
4c4abe7c
GH		 680 return;
681 }
682
683 if (!(xhci->usbcmd & USBCMD_INTE)) {
684 return;
685 }
686
4c47f800 687 if (msix_enabled(&xhci->pci_dev)) {
962d11e1
GH		 688 trace_usb_xhci_irq_msix(v);
689 msix_notify(&xhci->pci_dev, v);
4c47f800
GH		 690 return;
691 }
692
c5e9b02d 693 if (msi_enabled(&xhci->pci_dev)) {
962d11e1
GH		 694 trace_usb_xhci_irq_msi(v);
695 msi_notify(&xhci->pci_dev, v);
4c4abe7c 696 return;
62c6ae04 697 }
4c4abe7c 698
962d11e1
GH		 699 if (v == 0) {
700 trace_usb_xhci_irq_intx(1);
701 qemu_set_irq(xhci->irq, 1);
702 }
62c6ae04
HM		 703}
704
705static inline int xhci_running(XHCIState *xhci)
706{
962d11e1 707 return !(xhci->usbsts & USBSTS_HCH) && !xhci->intr[0].er_full;
62c6ae04
HM		 708}
709
710static void xhci_die(XHCIState *xhci)
711{
712 xhci->usbsts |= USBSTS_HCE;
713 fprintf(stderr, "xhci: asserted controller error\n");
714}
715
962d11e1 716static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v)
62c6ae04 717{
962d11e1 718 XHCIInterrupter *intr = &xhci->intr[v];
62c6ae04 719 XHCITRB ev_trb;
59a70ccd 720 dma_addr_t addr;
62c6ae04
HM		 721
722 ev_trb.parameter = cpu_to_le64(event->ptr);
723 ev_trb.status = cpu_to_le32(event->length | (event->ccode << 24));
724 ev_trb.control = (event->slotid << 24) | (event->epid << 16) |
725 event->flags | (event->type << TRB_TYPE_SHIFT);
962d11e1 726 if (intr->er_pcs) {
62c6ae04
HM		 727 ev_trb.control |= TRB_C;
728 }
729 ev_trb.control = cpu_to_le32(ev_trb.control);
730
962d11e1 731 trace_usb_xhci_queue_event(v, intr->er_ep_idx, trb_name(&ev_trb),
873123fe
GH		 732 event_name(event), ev_trb.parameter,
733 ev_trb.status, ev_trb.control);
62c6ae04 734
962d11e1 735 addr = intr->er_start + TRB_SIZE*intr->er_ep_idx;
59a70ccd 736 pci_dma_write(&xhci->pci_dev, addr, &ev_trb, TRB_SIZE);
62c6ae04 737
962d11e1
GH		 738 intr->er_ep_idx++;
739 if (intr->er_ep_idx >= intr->er_size) {
740 intr->er_ep_idx = 0;
741 intr->er_pcs = !intr->er_pcs;
62c6ae04
HM		 742 }
743}
744
962d11e1 745static void xhci_events_update(XHCIState *xhci, int v)
62c6ae04 746{
962d11e1 747 XHCIInterrupter *intr = &xhci->intr[v];
59a70ccd 748 dma_addr_t erdp;
62c6ae04
HM		 749 unsigned int dp_idx;
750 bool do_irq = 0;
751
752 if (xhci->usbsts & USBSTS_HCH) {
753 return;
754 }
755
962d11e1
GH		 756 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high);
757 if (erdp < intr->er_start ||
758 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) {
59a70ccd 759 fprintf(stderr, "xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp);
962d11e1
GH		 760 fprintf(stderr, "xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n",
761 v, intr->er_start, intr->er_size);
62c6ae04
HM		 762 xhci_die(xhci);
763 return;
764 }
962d11e1
GH		 765 dp_idx = (erdp - intr->er_start) / TRB_SIZE;
766 assert(dp_idx < intr->er_size);
62c6ae04
HM		 767
768 /* NEC didn't read section 4.9.4 of the spec (v1.0 p139 top Note) and thus
769 * deadlocks when the ER is full. Hack it by holding off events until
770 * the driver decides to free at least half of the ring */
962d11e1
GH		 771 if (intr->er_full) {
772 int er_free = dp_idx - intr->er_ep_idx;
62c6ae04 773 if (er_free <= 0) {
962d11e1 774 er_free += intr->er_size;
62c6ae04 775 }
962d11e1 776 if (er_free < (intr->er_size/2)) {
62c6ae04
HM		 777 DPRINTF("xhci_events_update(): event ring still "
778 "more than half full (hack)\n");
779 return;
780 }
781 }
782
962d11e1
GH		 783 while (intr->ev_buffer_put != intr->ev_buffer_get) {
784 assert(intr->er_full);
785 if (((intr->er_ep_idx+1) % intr->er_size) == dp_idx) {
62c6ae04
HM		 786 DPRINTF("xhci_events_update(): event ring full again\n");
787#ifndef ER_FULL_HACK
788 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR};
962d11e1 789 xhci_write_event(xhci, &full, v);
62c6ae04
HM		 790#endif
791 do_irq = 1;
792 break;
793 }
962d11e1
GH		 794 XHCIEvent *event = &intr->ev_buffer[intr->ev_buffer_get];
795 xhci_write_event(xhci, event, v);
796 intr->ev_buffer_get++;
62c6ae04 797 do_irq = 1;
962d11e1
GH		 798 if (intr->ev_buffer_get == EV_QUEUE) {
799 intr->ev_buffer_get = 0;
62c6ae04
HM		 800 }
801 }
802
803 if (do_irq) {
962d11e1 804 xhci_intr_raise(xhci, v);
62c6ae04
HM		 805 }
806
962d11e1 807 if (intr->er_full && intr->ev_buffer_put == intr->ev_buffer_get) {
62c6ae04 808 DPRINTF("xhci_events_update(): event ring no longer full\n");
962d11e1 809 intr->er_full = 0;
62c6ae04 810 }
62c6ae04
HM		 811}
812
962d11e1 813static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v)
62c6ae04 814{
2d1de850 815 XHCIInterrupter *intr;
59a70ccd 816 dma_addr_t erdp;
62c6ae04
HM		 817 unsigned int dp_idx;
818
2d1de850
GH		 819 if (v >= MAXINTRS) {
820 DPRINTF("intr nr out of range (%d >= %d)\n", v, MAXINTRS);
821 return;
822 }
823 intr = &xhci->intr[v];
824
962d11e1 825 if (intr->er_full) {
62c6ae04 826 DPRINTF("xhci_event(): ER full, queueing\n");
962d11e1 827 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) {
62c6ae04
HM		 828 fprintf(stderr, "xhci: event queue full, dropping event!\n");
829 return;
830 }
962d11e1
GH		 831 intr->ev_buffer[intr->ev_buffer_put++] = *event;
832 if (intr->ev_buffer_put == EV_QUEUE) {
833 intr->ev_buffer_put = 0;
62c6ae04
HM		 834 }
835 return;
836 }
837
962d11e1
GH		 838 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high);
839 if (erdp < intr->er_start ||
840 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) {
59a70ccd 841 fprintf(stderr, "xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp);
962d11e1
GH		 842 fprintf(stderr, "xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n",
843 v, intr->er_start, intr->er_size);
62c6ae04
HM		 844 xhci_die(xhci);
845 return;
846 }
847
962d11e1
GH		 848 dp_idx = (erdp - intr->er_start) / TRB_SIZE;
849 assert(dp_idx < intr->er_size);
62c6ae04 850
962d11e1 851 if ((intr->er_ep_idx+1) % intr->er_size == dp_idx) {
62c6ae04
HM		 852 DPRINTF("xhci_event(): ER full, queueing\n");
853#ifndef ER_FULL_HACK
854 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR};
855 xhci_write_event(xhci, &full);
856#endif
962d11e1
GH		 857 intr->er_full = 1;
858 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) {
62c6ae04
HM		 859 fprintf(stderr, "xhci: event queue full, dropping event!\n");
860 return;
861 }
962d11e1
GH		 862 intr->ev_buffer[intr->ev_buffer_put++] = *event;
863 if (intr->ev_buffer_put == EV_QUEUE) {
864 intr->ev_buffer_put = 0;
62c6ae04
HM		 865 }
866 } else {
962d11e1 867 xhci_write_event(xhci, event, v);
62c6ae04
HM		 868 }
869
962d11e1 870 xhci_intr_raise(xhci, v);
62c6ae04
HM		 871}
872
873static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring,
59a70ccd 874 dma_addr_t base)
62c6ae04
HM		 875{
876 ring->base = base;
877 ring->dequeue = base;
878 ring->ccs = 1;
879}
880
881static TRBType xhci_ring_fetch(XHCIState *xhci, XHCIRing *ring, XHCITRB *trb,
59a70ccd 882 dma_addr_t *addr)
62c6ae04
HM		 883{
884 while (1) {
885 TRBType type;
59a70ccd 886 pci_dma_read(&xhci->pci_dev, ring->dequeue, trb, TRB_SIZE);
62c6ae04
HM		 887 trb->addr = ring->dequeue;
888 trb->ccs = ring->ccs;
889 le64_to_cpus(&trb->parameter);
890 le32_to_cpus(&trb->status);
891 le32_to_cpus(&trb->control);
892
0703a4a7
GH		 893 trace_usb_xhci_fetch_trb(ring->dequeue, trb_name(trb),
894 trb->parameter, trb->status, trb->control);
62c6ae04
HM		 895
896 if ((trb->control & TRB_C) != ring->ccs) {
897 return 0;
898 }
899
900 type = TRB_TYPE(*trb);
901
902 if (type != TR_LINK) {
903 if (addr) {
904 *addr = ring->dequeue;
905 }
906 ring->dequeue += TRB_SIZE;
907 return type;
908 } else {
909 ring->dequeue = xhci_mask64(trb->parameter);
910 if (trb->control & TRB_LK_TC) {
911 ring->ccs = !ring->ccs;
912 }
913 }
914 }
915}
916
917static int xhci_ring_chain_length(XHCIState *xhci, const XHCIRing *ring)
918{
919 XHCITRB trb;
920 int length = 0;
59a70ccd 921 dma_addr_t dequeue = ring->dequeue;
62c6ae04
HM		 922 bool ccs = ring->ccs;
923 /* hack to bundle together the two/three TDs that make a setup transfer */
924 bool control_td_set = 0;
925
926 while (1) {
927 TRBType type;
59a70ccd 928 pci_dma_read(&xhci->pci_dev, dequeue, &trb, TRB_SIZE);
62c6ae04
HM		 929 le64_to_cpus(&trb.parameter);
930 le32_to_cpus(&trb.status);
931 le32_to_cpus(&trb.control);
932
62c6ae04
HM		 933 if ((trb.control & TRB_C) != ccs) {
934 return -length;
935 }
936
937 type = TRB_TYPE(trb);
938
939 if (type == TR_LINK) {
940 dequeue = xhci_mask64(trb.parameter);
941 if (trb.control & TRB_LK_TC) {
942 ccs = !ccs;
943 }
944 continue;
945 }
946
947 length += 1;
948 dequeue += TRB_SIZE;
949
950 if (type == TR_SETUP) {
951 control_td_set = 1;
952 } else if (type == TR_STATUS) {
953 control_td_set = 0;
954 }
955
956 if (!control_td_set && !(trb.control & TRB_TR_CH)) {
957 return length;
958 }
959 }
960}
961
962d11e1 962static void xhci_er_reset(XHCIState *xhci, int v)
62c6ae04 963{
962d11e1 964 XHCIInterrupter *intr = &xhci->intr[v];
62c6ae04
HM		 965 XHCIEvRingSeg seg;
966
e099ad4b
GH		 967 if (intr->erstsz == 0) {
968 /* disabled */
969 intr->er_start = 0;
970 intr->er_size = 0;
971 return;
972 }
62c6ae04 973 /* cache the (sole) event ring segment location */
962d11e1
GH		 974 if (intr->erstsz != 1) {
975 fprintf(stderr, "xhci: invalid value for ERSTSZ: %d\n", intr->erstsz);
62c6ae04
HM		 976 xhci_die(xhci);
977 return;
978 }
962d11e1 979 dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high);
59a70ccd 980 pci_dma_read(&xhci->pci_dev, erstba, &seg, sizeof(seg));
62c6ae04
HM		 981 le32_to_cpus(&seg.addr_low);
982 le32_to_cpus(&seg.addr_high);
983 le32_to_cpus(&seg.size);
984 if (seg.size < 16 || seg.size > 4096) {
985 fprintf(stderr, "xhci: invalid value for segment size: %d\n", seg.size);
986 xhci_die(xhci);
987 return;
988 }
962d11e1
GH		 989 intr->er_start = xhci_addr64(seg.addr_low, seg.addr_high);
990 intr->er_size = seg.size;
62c6ae04 991
962d11e1
GH		 992 intr->er_ep_idx = 0;
993 intr->er_pcs = 1;
994 intr->er_full = 0;
62c6ae04 995
962d11e1
GH		 996 DPRINTF("xhci: event ring[%d]:" DMA_ADDR_FMT " [%d]\n",
997 v, intr->er_start, intr->er_size);
62c6ae04
HM		 998}
999
1000static void xhci_run(XHCIState *xhci)
1001{
fc0ddaca 1002 trace_usb_xhci_run();
62c6ae04 1003 xhci->usbsts &= ~USBSTS_HCH;
01546fa6 1004 xhci->mfindex_start = qemu_get_clock_ns(vm_clock);
62c6ae04
HM		 1005}
1006
1007static void xhci_stop(XHCIState *xhci)
1008{
fc0ddaca 1009 trace_usb_xhci_stop();
62c6ae04
HM		 1010 xhci->usbsts |= USBSTS_HCH;
1011 xhci->crcr_low &= ~CRCR_CRR;
1012}
1013
1014static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx,
1015 uint32_t state)
1016{
1017 uint32_t ctx[5];
62c6ae04 1018
59a70ccd 1019 pci_dma_read(&xhci->pci_dev, epctx->pctx, ctx, sizeof(ctx));
62c6ae04
HM		 1020 ctx[0] &= ~EP_STATE_MASK;
1021 ctx[0] |= state;
1022 ctx[2] = epctx->ring.dequeue | epctx->ring.ccs;
1023 ctx[3] = (epctx->ring.dequeue >> 16) >> 16;
59a70ccd 1024 DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n",
62c6ae04 1025 epctx->pctx, state, ctx[3], ctx[2]);
59a70ccd 1026 pci_dma_write(&xhci->pci_dev, epctx->pctx, ctx, sizeof(ctx));
62c6ae04
HM		 1027 epctx->state = state;
1028}
1029
3d139684
GH		 1030static void xhci_ep_kick_timer(void *opaque)
1031{
1032 XHCIEPContext *epctx = opaque;
1033 xhci_kick_ep(epctx->xhci, epctx->slotid, epctx->epid);
1034}
1035
62c6ae04 1036static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid,
59a70ccd 1037 unsigned int epid, dma_addr_t pctx,
62c6ae04
HM		 1038 uint32_t *ctx)
1039{
1040 XHCISlot *slot;
1041 XHCIEPContext *epctx;
59a70ccd 1042 dma_addr_t dequeue;
62c6ae04
HM		 1043 int i;
1044
c1f6b493 1045 trace_usb_xhci_ep_enable(slotid, epid);
62c6ae04
HM		 1046 assert(slotid >= 1 && slotid <= MAXSLOTS);
1047 assert(epid >= 1 && epid <= 31);
1048
62c6ae04
HM		 1049 slot = &xhci->slots[slotid-1];
1050 if (slot->eps[epid-1]) {
1051 fprintf(stderr, "xhci: slot %d ep %d already enabled!\n", slotid, epid);
1052 return CC_TRB_ERROR;
1053 }
1054
1055 epctx = g_malloc(sizeof(XHCIEPContext));
1056 memset(epctx, 0, sizeof(XHCIEPContext));
3d139684
GH		 1057 epctx->xhci = xhci;
1058 epctx->slotid = slotid;
1059 epctx->epid = epid;
62c6ae04
HM		 1060
1061 slot->eps[epid-1] = epctx;
1062
1063 dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]);
1064 xhci_ring_init(xhci, &epctx->ring, dequeue);
1065 epctx->ring.ccs = ctx[2] & 1;
1066
1067 epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK;
1068 DPRINTF("xhci: endpoint %d.%d type is %d\n", epid/2, epid%2, epctx->type);
1069 epctx->pctx = pctx;
1070 epctx->max_psize = ctx[1]>>16;
1071 epctx->max_psize *= 1+((ctx[1]>>8)&0xff);
62c6ae04
HM		 1072 DPRINTF("xhci: endpoint %d.%d max transaction (burst) size is %d\n",
1073 epid/2, epid%2, epctx->max_psize);
1074 for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) {
1075 usb_packet_init(&epctx->transfers[i].packet);
1076 }
1077
3d139684
GH		 1078 epctx->interval = 1 << (ctx[0] >> 16) & 0xff;
1079 epctx->mfindex_last = 0;
1080 epctx->kick_timer = qemu_new_timer_ns(vm_clock, xhci_ep_kick_timer, epctx);
1081
62c6ae04
HM		 1082 epctx->state = EP_RUNNING;
1083 ctx[0] &= ~EP_STATE_MASK;
1084 ctx[0] |= EP_RUNNING;
1085
1086 return CC_SUCCESS;
1087}
1088
3151f209
HG		 1089static int xhci_ep_nuke_one_xfer(XHCITransfer *t)
1090{
1091 int killed = 0;
1092
1093 if (t->running_async) {
1094 usb_cancel_packet(&t->packet);
1095 t->running_async = 0;
1096 t->cancelled = 1;
1097 DPRINTF("xhci: cancelling transfer, waiting for it to complete\n");
1098 killed = 1;
1099 }
1100 if (t->running_retry) {
1101 XHCIEPContext *epctx = t->xhci->slots[t->slotid-1].eps[t->epid-1];
1102 if (epctx) {
1103 epctx->retry = NULL;
1104 qemu_del_timer(epctx->kick_timer);
1105 }
1106 t->running_retry = 0;
1107 }
1108 if (t->trbs) {
1109 g_free(t->trbs);
1110 }
1111
1112 t->trbs = NULL;
1113 t->trb_count = t->trb_alloced = 0;
1114
1115 return killed;
1116}
1117
62c6ae04
HM		 1118static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid,
1119 unsigned int epid)
1120{
1121 XHCISlot *slot;
1122 XHCIEPContext *epctx;
1123 int i, xferi, killed = 0;
1124 assert(slotid >= 1 && slotid <= MAXSLOTS);
1125 assert(epid >= 1 && epid <= 31);
1126
1127 DPRINTF("xhci_ep_nuke_xfers(%d, %d)\n", slotid, epid);
1128
1129 slot = &xhci->slots[slotid-1];
1130
1131 if (!slot->eps[epid-1]) {
1132 return 0;
1133 }
1134
1135 epctx = slot->eps[epid-1];
1136
1137 xferi = epctx->next_xfer;
1138 for (i = 0; i < TD_QUEUE; i++) {
3151f209 1139 killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi]);
62c6ae04
HM		 1140 xferi = (xferi + 1) % TD_QUEUE;
1141 }
62c6ae04
HM		 1142 return killed;
1143}
1144
1145static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid,
1146 unsigned int epid)
1147{
1148 XHCISlot *slot;
1149 XHCIEPContext *epctx;
1150
c1f6b493 1151 trace_usb_xhci_ep_disable(slotid, epid);
62c6ae04
HM		 1152 assert(slotid >= 1 && slotid <= MAXSLOTS);
1153 assert(epid >= 1 && epid <= 31);
1154
62c6ae04
HM		 1155 slot = &xhci->slots[slotid-1];
1156
1157 if (!slot->eps[epid-1]) {
1158 DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid);
1159 return CC_SUCCESS;
1160 }
1161
1162 xhci_ep_nuke_xfers(xhci, slotid, epid);
1163
1164 epctx = slot->eps[epid-1];
1165
1166 xhci_set_ep_state(xhci, epctx, EP_DISABLED);
1167
3d139684 1168 qemu_free_timer(epctx->kick_timer);
62c6ae04
HM		 1169 g_free(epctx);
1170 slot->eps[epid-1] = NULL;
1171
1172 return CC_SUCCESS;
1173}
1174
1175static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid,
1176 unsigned int epid)
1177{
1178 XHCISlot *slot;
1179 XHCIEPContext *epctx;
1180
c1f6b493 1181 trace_usb_xhci_ep_stop(slotid, epid);
62c6ae04
HM		 1182 assert(slotid >= 1 && slotid <= MAXSLOTS);
1183
1184 if (epid < 1 || epid > 31) {
1185 fprintf(stderr, "xhci: bad ep %d\n", epid);
1186 return CC_TRB_ERROR;
1187 }
1188
1189 slot = &xhci->slots[slotid-1];
1190
1191 if (!slot->eps[epid-1]) {
1192 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid);
1193 return CC_EP_NOT_ENABLED_ERROR;
1194 }
1195
1196 if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) {
1197 fprintf(stderr, "xhci: FIXME: endpoint stopped w/ xfers running, "
1198 "data might be lost\n");
1199 }
1200
1201 epctx = slot->eps[epid-1];
1202
1203 xhci_set_ep_state(xhci, epctx, EP_STOPPED);
1204
1205 return CC_SUCCESS;
1206}
1207
1208static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid,
1209 unsigned int epid)
1210{
1211 XHCISlot *slot;
1212 XHCIEPContext *epctx;
1213 USBDevice *dev;
1214
c1f6b493 1215 trace_usb_xhci_ep_reset(slotid, epid);
62c6ae04
HM		 1216 assert(slotid >= 1 && slotid <= MAXSLOTS);
1217
62c6ae04
HM		 1218 if (epid < 1 || epid > 31) {
1219 fprintf(stderr, "xhci: bad ep %d\n", epid);
1220 return CC_TRB_ERROR;
1221 }
1222
1223 slot = &xhci->slots[slotid-1];
1224
1225 if (!slot->eps[epid-1]) {
1226 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid);
1227 return CC_EP_NOT_ENABLED_ERROR;
1228 }
1229
1230 epctx = slot->eps[epid-1];
1231
1232 if (epctx->state != EP_HALTED) {
1233 fprintf(stderr, "xhci: reset EP while EP %d not halted (%d)\n",
1234 epid, epctx->state);
1235 return CC_CONTEXT_STATE_ERROR;
1236 }
1237
1238 if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) {
1239 fprintf(stderr, "xhci: FIXME: endpoint reset w/ xfers running, "
1240 "data might be lost\n");
1241 }
1242
1243 uint8_t ep = epid>>1;
1244
1245 if (epid & 1) {
1246 ep |= 0x80;
1247 }
1248
ccaf87a0 1249 dev = xhci->slots[slotid-1].uport->dev;
62c6ae04
HM		 1250 if (!dev) {
1251 return CC_USB_TRANSACTION_ERROR;
1252 }
1253
1254 xhci_set_ep_state(xhci, epctx, EP_STOPPED);
1255
1256 return CC_SUCCESS;
1257}
1258
1259static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid,
1260 unsigned int epid, uint64_t pdequeue)
1261{
1262 XHCISlot *slot;
1263 XHCIEPContext *epctx;
59a70ccd 1264 dma_addr_t dequeue;
62c6ae04
HM		 1265
1266 assert(slotid >= 1 && slotid <= MAXSLOTS);
1267
1268 if (epid < 1 || epid > 31) {
1269 fprintf(stderr, "xhci: bad ep %d\n", epid);
1270 return CC_TRB_ERROR;
1271 }
1272
d829fde9 1273 trace_usb_xhci_ep_set_dequeue(slotid, epid, pdequeue);
62c6ae04
HM		 1274 dequeue = xhci_mask64(pdequeue);
1275
1276 slot = &xhci->slots[slotid-1];
1277
1278 if (!slot->eps[epid-1]) {
1279 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid);
1280 return CC_EP_NOT_ENABLED_ERROR;
1281 }
1282
1283 epctx = slot->eps[epid-1];
1284
1285
1286 if (epctx->state != EP_STOPPED) {
1287 fprintf(stderr, "xhci: set EP dequeue pointer while EP %d not stopped\n", epid);
1288 return CC_CONTEXT_STATE_ERROR;
1289 }
1290
1291 xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF);
1292 epctx->ring.ccs = dequeue & 1;
1293
1294 xhci_set_ep_state(xhci, epctx, EP_STOPPED);
1295
1296 return CC_SUCCESS;
1297}
1298
a6fb2ddb 1299static int xhci_xfer_create_sgl(XHCITransfer *xfer, int in_xfer)
62c6ae04 1300{
62c6ae04 1301 XHCIState *xhci = xfer->xhci;
d5a15814 1302 int i;
62c6ae04 1303
a6fb2ddb 1304 xfer->int_req = false;
d5a15814 1305 pci_dma_sglist_init(&xfer->sgl, &xhci->pci_dev, xfer->trb_count);
62c6ae04
HM		 1306 for (i = 0; i < xfer->trb_count; i++) {
1307 XHCITRB *trb = &xfer->trbs[i];
59a70ccd 1308 dma_addr_t addr;
62c6ae04
HM		 1309 unsigned int chunk = 0;
1310
a6fb2ddb
HG		 1311 if (trb->control & TRB_TR_IOC) {
1312 xfer->int_req = true;
1313 }
1314
62c6ae04
HM		 1315 switch (TRB_TYPE(*trb)) {
1316 case TR_DATA:
1317 if ((!(trb->control & TRB_TR_DIR)) != (!in_xfer)) {
1318 fprintf(stderr, "xhci: data direction mismatch for TR_DATA\n");
d5a15814 1319 goto err;
62c6ae04
HM		 1320 }
1321 /* fallthrough */
1322 case TR_NORMAL:
1323 case TR_ISOCH:
1324 addr = xhci_mask64(trb->parameter);
d5a15814
GH		 1325 chunk = trb->status & 0x1ffff;
1326 if (trb->control & TRB_TR_IDT) {
1327 if (chunk > 8 || in_xfer) {
1328 fprintf(stderr, "xhci: invalid immediate data TRB\n");
1329 goto err;
1330 }
1331 qemu_sglist_add(&xfer->sgl, trb->addr, chunk);
1332 } else {
1333 qemu_sglist_add(&xfer->sgl, addr, chunk);
1334 }
1335 break;
1336 }
1337 }
1338
d5a15814
GH		 1339 return 0;
1340
1341err:
1342 qemu_sglist_destroy(&xfer->sgl);
1343 xhci_die(xhci);
1344 return -1;
1345}
1346
1347static void xhci_xfer_unmap(XHCITransfer *xfer)
1348{
1349 usb_packet_unmap(&xfer->packet, &xfer->sgl);
1350 qemu_sglist_destroy(&xfer->sgl);
1351}
1352
1353static void xhci_xfer_report(XHCITransfer *xfer)
1354{
1355 uint32_t edtla = 0;
1356 unsigned int left;
1357 bool reported = 0;
1358 bool shortpkt = 0;
1359 XHCIEvent event = {ER_TRANSFER, CC_SUCCESS};
1360 XHCIState *xhci = xfer->xhci;
1361 int i;
1362
1363 left = xfer->packet.result < 0 ? 0 : xfer->packet.result;
1364
1365 for (i = 0; i < xfer->trb_count; i++) {
1366 XHCITRB *trb = &xfer->trbs[i];
1367 unsigned int chunk = 0;
1368
1369 switch (TRB_TYPE(*trb)) {
1370 case TR_DATA:
1371 case TR_NORMAL:
1372 case TR_ISOCH:
62c6ae04
HM		 1373 chunk = trb->status & 0x1ffff;
1374 if (chunk > left) {
1375 chunk = left;
d5a15814
GH		 1376 if (xfer->status == CC_SUCCESS) {
1377 shortpkt = 1;
62c6ae04
HM		 1378 }
1379 }
1380 left -= chunk;
62c6ae04 1381 edtla += chunk;
62c6ae04
HM		 1382 break;
1383 case TR_STATUS:
1384 reported = 0;
1385 shortpkt = 0;
1386 break;
1387 }
1388
d5a15814
GH		 1389 if (!reported && ((trb->control & TRB_TR_IOC) ||
1390 (shortpkt && (trb->control & TRB_TR_ISP)) ||
1391 (xfer->status != CC_SUCCESS))) {
62c6ae04
HM		 1392 event.slotid = xfer->slotid;
1393 event.epid = xfer->epid;
1394 event.length = (trb->status & 0x1ffff) - chunk;
1395 event.flags = 0;
1396 event.ptr = trb->addr;
1397 if (xfer->status == CC_SUCCESS) {
1398 event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS;
1399 } else {
1400 event.ccode = xfer->status;
1401 }
1402 if (TRB_TYPE(*trb) == TR_EVDATA) {
1403 event.ptr = trb->parameter;
1404 event.flags |= TRB_EV_ED;
1405 event.length = edtla & 0xffffff;
1406 DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length);
1407 edtla = 0;
1408 }
2d1de850 1409 xhci_event(xhci, &event, TRB_INTR(*trb));
62c6ae04 1410 reported = 1;
d5a15814
GH		 1411 if (xfer->status != CC_SUCCESS) {
1412 return;
1413 }
62c6ae04
HM		 1414 }
1415 }
62c6ae04
HM		 1416}
1417
1418static void xhci_stall_ep(XHCITransfer *xfer)
1419{
1420 XHCIState *xhci = xfer->xhci;
1421 XHCISlot *slot = &xhci->slots[xfer->slotid-1];
1422 XHCIEPContext *epctx = slot->eps[xfer->epid-1];
1423
1424 epctx->ring.dequeue = xfer->trbs[0].addr;
1425 epctx->ring.ccs = xfer->trbs[0].ccs;
1426 xhci_set_ep_state(xhci, epctx, EP_HALTED);
1427 DPRINTF("xhci: stalled slot %d ep %d\n", xfer->slotid, xfer->epid);
59a70ccd 1428 DPRINTF("xhci: will continue at "DMA_ADDR_FMT"\n", epctx->ring.dequeue);
62c6ae04
HM		 1429}
1430
1431static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer,
1432 XHCIEPContext *epctx);
1433
5c08106f
GH		 1434static int xhci_setup_packet(XHCITransfer *xfer)
1435{
1436 XHCIState *xhci = xfer->xhci;
5c08106f 1437 USBDevice *dev;
079d0b7f
GH		 1438 USBEndpoint *ep;
1439 int dir;
1440
1441 dir = xfer->in_xfer ? USB_TOKEN_IN : USB_TOKEN_OUT;
5c08106f
GH		 1442
1443 if (xfer->packet.ep) {
1444 ep = xfer->packet.ep;
1445 dev = ep->dev;
1446 } else {
ccaf87a0
GH		 1447 if (!xhci->slots[xfer->slotid-1].uport) {
1448 fprintf(stderr, "xhci: slot %d has no device\n",
1449 xfer->slotid);
5c08106f
GH		 1450 return -1;
1451 }
ccaf87a0 1452 dev = xhci->slots[xfer->slotid-1].uport->dev;
5c08106f
GH		 1453 ep = usb_ep_get(dev, dir, xfer->epid >> 1);
1454 }
1455
a6fb2ddb
HG		 1456 xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */
1457 usb_packet_setup(&xfer->packet, dir, ep, xfer->trbs[0].addr, false,
1458 xfer->int_req);
1459 usb_packet_map(&xfer->packet, &xfer->sgl);
62c6ae04 1460 DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n",
079d0b7f 1461 xfer->packet.pid, dev->addr, ep->nr);
62c6ae04
HM		 1462 return 0;
1463}
1464
1465static int xhci_complete_packet(XHCITransfer *xfer, int ret)
1466{
1467 if (ret == USB_RET_ASYNC) {
97df650b 1468 trace_usb_xhci_xfer_async(xfer);
7c605a23
GH		 1469 xfer->running_async = 1;
1470 xfer->running_retry = 0;
1471 xfer->complete = 0;
1472 xfer->cancelled = 0;
1473 return 0;
1474 } else if (ret == USB_RET_NAK) {
97df650b 1475 trace_usb_xhci_xfer_nak(xfer);
7c605a23
GH		 1476 xfer->running_async = 0;
1477 xfer->running_retry = 1;
62c6ae04
HM		 1478 xfer->complete = 0;
1479 xfer->cancelled = 0;
1480 return 0;
1481 } else {
7c605a23
GH		 1482 xfer->running_async = 0;
1483 xfer->running_retry = 0;
62c6ae04 1484 xfer->complete = 1;
d5a15814 1485 xhci_xfer_unmap(xfer);
62c6ae04
HM		 1486 }
1487
1488 if (ret >= 0) {
97df650b 1489 trace_usb_xhci_xfer_success(xfer, ret);
d5a15814
GH		 1490 xfer->status = CC_SUCCESS;
1491 xhci_xfer_report(xfer);
62c6ae04
HM		 1492 return 0;
1493 }
1494
1495 /* error */
97df650b 1496 trace_usb_xhci_xfer_error(xfer, ret);
62c6ae04
HM		 1497 switch (ret) {
1498 case USB_RET_NODEV:
1499 xfer->status = CC_USB_TRANSACTION_ERROR;
d5a15814 1500 xhci_xfer_report(xfer);
62c6ae04
HM		 1501 xhci_stall_ep(xfer);
1502 break;
1503 case USB_RET_STALL:
1504 xfer->status = CC_STALL_ERROR;
d5a15814 1505 xhci_xfer_report(xfer);
62c6ae04
HM		 1506 xhci_stall_ep(xfer);
1507 break;
1508 default:
1509 fprintf(stderr, "%s: FIXME: ret = %d\n", __FUNCTION__, ret);
1510 FIXME();
1511 }
1512 return 0;
1513}
1514
1515static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer)
1516{
1517 XHCITRB *trb_setup, *trb_status;
2850ca9e 1518 uint8_t bmRequestType;
62c6ae04
HM		 1519 int ret;
1520
62c6ae04
HM		 1521 trb_setup = &xfer->trbs[0];
1522 trb_status = &xfer->trbs[xfer->trb_count-1];
1523
d5a15814 1524 trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid);
97df650b 1525
62c6ae04
HM		 1526 /* at most one Event Data TRB allowed after STATUS */
1527 if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) {
1528 trb_status--;
1529 }
1530
1531 /* do some sanity checks */
1532 if (TRB_TYPE(*trb_setup) != TR_SETUP) {
1533 fprintf(stderr, "xhci: ep0 first TD not SETUP: %d\n",
1534 TRB_TYPE(*trb_setup));
1535 return -1;
1536 }
1537 if (TRB_TYPE(*trb_status) != TR_STATUS) {
1538 fprintf(stderr, "xhci: ep0 last TD not STATUS: %d\n",
1539 TRB_TYPE(*trb_status));
1540 return -1;
1541 }
1542 if (!(trb_setup->control & TRB_TR_IDT)) {
1543 fprintf(stderr, "xhci: Setup TRB doesn't have IDT set\n");
1544 return -1;
1545 }
1546 if ((trb_setup->status & 0x1ffff) != 8) {
1547 fprintf(stderr, "xhci: Setup TRB has bad length (%d)\n",
1548 (trb_setup->status & 0x1ffff));
1549 return -1;
1550 }
1551
1552 bmRequestType = trb_setup->parameter;
62c6ae04 1553
62c6ae04
HM		 1554 xfer->in_xfer = bmRequestType & USB_DIR_IN;
1555 xfer->iso_xfer = false;
1556
5c08106f
GH		 1557 if (xhci_setup_packet(xfer) < 0) {
1558 return -1;
1559 }
2850ca9e 1560 xfer->packet.parameter = trb_setup->parameter;
2850ca9e 1561
5c08106f 1562 ret = usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
62c6ae04
HM		 1563
1564 xhci_complete_packet(xfer, ret);
7c605a23 1565 if (!xfer->running_async && !xfer->running_retry) {
62c6ae04
HM		 1566 xhci_kick_ep(xhci, xfer->slotid, xfer->epid);
1567 }
1568 return 0;
1569}
1570
3d139684
GH		 1571static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer,
1572 XHCIEPContext *epctx, uint64_t mfindex)
1573{
1574 if (xfer->trbs[0].control & TRB_TR_SIA) {
1575 uint64_t asap = ((mfindex + epctx->interval - 1) &
1576 ~(epctx->interval-1));
1577 if (asap >= epctx->mfindex_last &&
1578 asap <= epctx->mfindex_last + epctx->interval * 4) {
1579 xfer->mfindex_kick = epctx->mfindex_last + epctx->interval;
1580 } else {
1581 xfer->mfindex_kick = asap;
1582 }
1583 } else {
1584 xfer->mfindex_kick = (xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT)
1585 & TRB_TR_FRAMEID_MASK;
1586 xfer->mfindex_kick |= mfindex & ~0x3fff;
1587 if (xfer->mfindex_kick < mfindex) {
1588 xfer->mfindex_kick += 0x4000;
1589 }
1590 }
1591}
1592
1593static void xhci_check_iso_kick(XHCIState *xhci, XHCITransfer *xfer,
1594 XHCIEPContext *epctx, uint64_t mfindex)
1595{
1596 if (xfer->mfindex_kick > mfindex) {
1597 qemu_mod_timer(epctx->kick_timer, qemu_get_clock_ns(vm_clock) +
1598 (xfer->mfindex_kick - mfindex) * 125000);
1599 xfer->running_retry = 1;
1600 } else {
1601 epctx->mfindex_last = xfer->mfindex_kick;
1602 qemu_del_timer(epctx->kick_timer);
1603 xfer->running_retry = 0;
1604 }
1605}
1606
1607
62c6ae04
HM		 1608static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx)
1609{
3d139684 1610 uint64_t mfindex;
62c6ae04
HM		 1611 int ret;
1612
1613 DPRINTF("xhci_submit(slotid=%d,epid=%d)\n", xfer->slotid, xfer->epid);
62c6ae04
HM		 1614
1615 xfer->in_xfer = epctx->type>>2;
62c6ae04 1616
62c6ae04
HM		 1617 switch(epctx->type) {
1618 case ET_INTR_OUT:
1619 case ET_INTR_IN:
1620 case ET_BULK_OUT:
1621 case ET_BULK_IN:
3d139684
GH		 1622 xfer->pkts = 0;
1623 xfer->iso_xfer = false;
62c6ae04
HM		 1624 break;
1625 case ET_ISO_OUT:
1626 case ET_ISO_IN:
3d139684
GH		 1627 xfer->pkts = 1;
1628 xfer->iso_xfer = true;
1629 mfindex = xhci_mfindex_get(xhci);
1630 xhci_calc_iso_kick(xhci, xfer, epctx, mfindex);
1631 xhci_check_iso_kick(xhci, xfer, epctx, mfindex);
1632 if (xfer->running_retry) {
1633 return -1;
1634 }
62c6ae04
HM		 1635 break;
1636 default:
079d0b7f
GH		 1637 fprintf(stderr, "xhci: unknown or unhandled EP "
1638 "(type %d, in %d, ep %02x)\n",
1639 epctx->type, xfer->in_xfer, xfer->epid);
62c6ae04
HM		 1640 return -1;
1641 }
1642
5c08106f
GH		 1643 if (xhci_setup_packet(xfer) < 0) {
1644 return -1;
1645 }
1646 ret = usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
62c6ae04
HM		 1647
1648 xhci_complete_packet(xfer, ret);
7c605a23 1649 if (!xfer->running_async && !xfer->running_retry) {
62c6ae04
HM		 1650 xhci_kick_ep(xhci, xfer->slotid, xfer->epid);
1651 }
1652 return 0;
1653}
1654
1655static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx)
1656{
d5a15814 1657 trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid);
331e9406 1658 return xhci_submit(xhci, xfer, epctx);
62c6ae04
HM		 1659}
1660
1661static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, unsigned int epid)
1662{
1663 XHCIEPContext *epctx;
36dfe324 1664 USBEndpoint *ep = NULL;
3d139684 1665 uint64_t mfindex;
62c6ae04
HM		 1666 int length;
1667 int i;
1668
c1f6b493 1669 trace_usb_xhci_ep_kick(slotid, epid);
62c6ae04
HM		 1670 assert(slotid >= 1 && slotid <= MAXSLOTS);
1671 assert(epid >= 1 && epid <= 31);
62c6ae04
HM		 1672
1673 if (!xhci->slots[slotid-1].enabled) {
1674 fprintf(stderr, "xhci: xhci_kick_ep for disabled slot %d\n", slotid);
1675 return;
1676 }
1677 epctx = xhci->slots[slotid-1].eps[epid-1];
1678 if (!epctx) {
1679 fprintf(stderr, "xhci: xhci_kick_ep for disabled endpoint %d,%d\n",
1680 epid, slotid);
1681 return;
1682 }
1683
7c605a23 1684 if (epctx->retry) {
7c605a23
GH		 1685 XHCITransfer *xfer = epctx->retry;
1686 int result;
1687
97df650b 1688 trace_usb_xhci_xfer_retry(xfer);
7c605a23 1689 assert(xfer->running_retry);
3d139684
GH		 1690 if (xfer->iso_xfer) {
1691 /* retry delayed iso transfer */
1692 mfindex = xhci_mfindex_get(xhci);
1693 xhci_check_iso_kick(xhci, xfer, epctx, mfindex);
1694 if (xfer->running_retry) {
1695 return;
1696 }
1697 if (xhci_setup_packet(xfer) < 0) {
1698 return;
1699 }
1700 result = usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
1701 assert(result != USB_RET_NAK);
1702 xhci_complete_packet(xfer, result);
1703 } else {
1704 /* retry nak'ed transfer */
1705 if (xhci_setup_packet(xfer) < 0) {
1706 return;
1707 }
1708 result = usb_handle_packet(xfer->packet.ep->dev, &xfer->packet);
1709 if (result == USB_RET_NAK) {
1710 return;
1711 }
1712 xhci_complete_packet(xfer, result);
7c605a23 1713 }
7c605a23
GH		 1714 assert(!xfer->running_retry);
1715 epctx->retry = NULL;
1716 }
1717
62c6ae04
HM		 1718 if (epctx->state == EP_HALTED) {
1719 DPRINTF("xhci: ep halted, not running schedule\n");
1720 return;
1721 }
1722
1723 xhci_set_ep_state(xhci, epctx, EP_RUNNING);
1724
1725 while (1) {
1726 XHCITransfer *xfer = &epctx->transfers[epctx->next_xfer];
331e9406 1727 if (xfer->running_async || xfer->running_retry) {
62c6ae04
HM		 1728 break;
1729 }
1730 length = xhci_ring_chain_length(xhci, &epctx->ring);
1731 if (length < 0) {
62c6ae04
HM		 1732 break;
1733 } else if (length == 0) {
1734 break;
1735 }
62c6ae04
HM		 1736 if (xfer->trbs && xfer->trb_alloced < length) {
1737 xfer->trb_count = 0;
1738 xfer->trb_alloced = 0;
1739 g_free(xfer->trbs);
1740 xfer->trbs = NULL;
1741 }
1742 if (!xfer->trbs) {
1743 xfer->trbs = g_malloc(sizeof(XHCITRB) * length);
1744 xfer->trb_alloced = length;
1745 }
1746 xfer->trb_count = length;
1747
1748 for (i = 0; i < length; i++) {
1749 assert(xhci_ring_fetch(xhci, &epctx->ring, &xfer->trbs[i], NULL));
1750 }
1751 xfer->xhci = xhci;
1752 xfer->epid = epid;
1753 xfer->slotid = slotid;
1754
1755 if (epid == 1) {
1756 if (xhci_fire_ctl_transfer(xhci, xfer) >= 0) {
1757 epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE;
36dfe324 1758 ep = xfer->packet.ep;
62c6ae04
HM		 1759 } else {
1760 fprintf(stderr, "xhci: error firing CTL transfer\n");
1761 }
1762 } else {
1763 if (xhci_fire_transfer(xhci, xfer, epctx) >= 0) {
1764 epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE;
36dfe324 1765 ep = xfer->packet.ep;
62c6ae04 1766 } else {
3d139684
GH		 1767 if (!xfer->iso_xfer) {
1768 fprintf(stderr, "xhci: error firing data transfer\n");
1769 }
62c6ae04
HM		 1770 }
1771 }
1772
3c4866e0 1773 if (epctx->state == EP_HALTED) {
3c4866e0
GH		 1774 break;
1775 }
7c605a23
GH		 1776 if (xfer->running_retry) {
1777 DPRINTF("xhci: xfer nacked, stopping schedule\n");
1778 epctx->retry = xfer;
1779 break;
1780 }
62c6ae04 1781 }
36dfe324
HG		 1782 if (ep) {
1783 usb_device_flush_ep_queue(ep->dev, ep);
1784 }
62c6ae04
HM		 1785}
1786
1787static TRBCCode xhci_enable_slot(XHCIState *xhci, unsigned int slotid)
1788{
348f1037 1789 trace_usb_xhci_slot_enable(slotid);
62c6ae04 1790 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04 1791 xhci->slots[slotid-1].enabled = 1;
ccaf87a0 1792 xhci->slots[slotid-1].uport = NULL;
62c6ae04
HM		 1793 memset(xhci->slots[slotid-1].eps, 0, sizeof(XHCIEPContext*)*31);
1794
1795 return CC_SUCCESS;
1796}
1797
1798static TRBCCode xhci_disable_slot(XHCIState *xhci, unsigned int slotid)
1799{
1800 int i;
1801
348f1037 1802 trace_usb_xhci_slot_disable(slotid);
62c6ae04 1803 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04
HM		 1804
1805 for (i = 1; i <= 31; i++) {
1806 if (xhci->slots[slotid-1].eps[i-1]) {
1807 xhci_disable_ep(xhci, slotid, i);
1808 }
1809 }
1810
1811 xhci->slots[slotid-1].enabled = 0;
1812 return CC_SUCCESS;
1813}
1814
ccaf87a0
GH		 1815static USBPort *xhci_lookup_uport(XHCIState *xhci, uint32_t *slot_ctx)
1816{
1817 USBPort *uport;
1818 char path[32];
1819 int i, pos, port;
1820
1821 port = (slot_ctx[1]>>16) & 0xFF;
1822 port = xhci->ports[port-1].uport->index+1;
1823 pos = snprintf(path, sizeof(path), "%d", port);
1824 for (i = 0; i < 5; i++) {
1825 port = (slot_ctx[0] >> 4*i) & 0x0f;
1826 if (!port) {
1827 break;
1828 }
1829 pos += snprintf(path + pos, sizeof(path) - pos, ".%d", port);
1830 }
1831
1832 QTAILQ_FOREACH(uport, &xhci->bus.used, next) {
1833 if (strcmp(uport->path, path) == 0) {
1834 return uport;
1835 }
1836 }
1837 return NULL;
1838}
1839
62c6ae04
HM		 1840static TRBCCode xhci_address_slot(XHCIState *xhci, unsigned int slotid,
1841 uint64_t pictx, bool bsr)
1842{
1843 XHCISlot *slot;
ccaf87a0 1844 USBPort *uport;
62c6ae04 1845 USBDevice *dev;
59a70ccd 1846 dma_addr_t ictx, octx, dcbaap;
62c6ae04
HM		 1847 uint64_t poctx;
1848 uint32_t ictl_ctx[2];
1849 uint32_t slot_ctx[4];
1850 uint32_t ep0_ctx[5];
62c6ae04
HM		 1851 int i;
1852 TRBCCode res;
1853
348f1037 1854 trace_usb_xhci_slot_address(slotid);
62c6ae04 1855 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04
HM		 1856
1857 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high);
59a70ccd 1858 pci_dma_read(&xhci->pci_dev, dcbaap + 8*slotid, &poctx, sizeof(poctx));
62c6ae04
HM		 1859 ictx = xhci_mask64(pictx);
1860 octx = xhci_mask64(le64_to_cpu(poctx));
1861
59a70ccd
DG		 1862 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx);
1863 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx);
62c6ae04 1864
59a70ccd 1865 pci_dma_read(&xhci->pci_dev, ictx, ictl_ctx, sizeof(ictl_ctx));
62c6ae04
HM		 1866
1867 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] != 0x3) {
1868 fprintf(stderr, "xhci: invalid input context control %08x %08x\n",
1869 ictl_ctx[0], ictl_ctx[1]);
1870 return CC_TRB_ERROR;
1871 }
1872
59a70ccd
DG		 1873 pci_dma_read(&xhci->pci_dev, ictx+32, slot_ctx, sizeof(slot_ctx));
1874 pci_dma_read(&xhci->pci_dev, ictx+64, ep0_ctx, sizeof(ep0_ctx));
62c6ae04
HM		 1875
1876 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n",
1877 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
1878
1879 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n",
1880 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]);
1881
ccaf87a0
GH		 1882 uport = xhci_lookup_uport(xhci, slot_ctx);
1883 if (uport == NULL) {
1884 fprintf(stderr, "xhci: port not found\n");
62c6ae04 1885 return CC_TRB_ERROR;
ccaf87a0
GH		 1886 }
1887
1888 dev = uport->dev;
1889 if (!dev) {
1890 fprintf(stderr, "xhci: port %s not connected\n", uport->path);
62c6ae04
HM		 1891 return CC_USB_TRANSACTION_ERROR;
1892 }
1893
1894 for (i = 0; i < MAXSLOTS; i++) {
ccaf87a0
GH		 1895 if (xhci->slots[i].uport == uport) {
1896 fprintf(stderr, "xhci: port %s already assigned to slot %d\n",
1897 uport->path, i+1);
62c6ae04
HM		 1898 return CC_TRB_ERROR;
1899 }
1900 }
1901
1902 slot = &xhci->slots[slotid-1];
ccaf87a0 1903 slot->uport = uport;
62c6ae04
HM		 1904 slot->ctx = octx;
1905
1906 if (bsr) {
1907 slot_ctx[3] = SLOT_DEFAULT << SLOT_STATE_SHIFT;
1908 } else {
1909 slot->devaddr = xhci->devaddr++;
1910 slot_ctx[3] = (SLOT_ADDRESSED << SLOT_STATE_SHIFT) | slot->devaddr;
1911 DPRINTF("xhci: device address is %d\n", slot->devaddr);
62aed765 1912 usb_device_handle_control(dev, NULL,
62c6ae04
HM		 1913 DeviceOutRequest | USB_REQ_SET_ADDRESS,
1914 slot->devaddr, 0, 0, NULL);
1915 }
1916
1917 res = xhci_enable_ep(xhci, slotid, 1, octx+32, ep0_ctx);
1918
1919 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n",
1920 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
1921 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n",
1922 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]);
1923
59a70ccd
DG		 1924 pci_dma_write(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
1925 pci_dma_write(&xhci->pci_dev, octx+32, ep0_ctx, sizeof(ep0_ctx));
62c6ae04
HM		 1926
1927 return res;
1928}
1929
1930
1931static TRBCCode xhci_configure_slot(XHCIState *xhci, unsigned int slotid,
1932 uint64_t pictx, bool dc)
1933{
59a70ccd 1934 dma_addr_t ictx, octx;
62c6ae04
HM		 1935 uint32_t ictl_ctx[2];
1936 uint32_t slot_ctx[4];
1937 uint32_t islot_ctx[4];
1938 uint32_t ep_ctx[5];
1939 int i;
1940 TRBCCode res;
1941
348f1037 1942 trace_usb_xhci_slot_configure(slotid);
62c6ae04 1943 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04
HM		 1944
1945 ictx = xhci_mask64(pictx);
1946 octx = xhci->slots[slotid-1].ctx;
1947
59a70ccd
DG		 1948 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx);
1949 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx);
62c6ae04
HM		 1950
1951 if (dc) {
1952 for (i = 2; i <= 31; i++) {
1953 if (xhci->slots[slotid-1].eps[i-1]) {
1954 xhci_disable_ep(xhci, slotid, i);
1955 }
1956 }
1957
59a70ccd 1958 pci_dma_read(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 1959 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT);
1960 slot_ctx[3] |= SLOT_ADDRESSED << SLOT_STATE_SHIFT;
1961 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n",
1962 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
59a70ccd 1963 pci_dma_write(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 1964
1965 return CC_SUCCESS;
1966 }
1967
59a70ccd 1968 pci_dma_read(&xhci->pci_dev, ictx, ictl_ctx, sizeof(ictl_ctx));
62c6ae04
HM		 1969
1970 if ((ictl_ctx[0] & 0x3) != 0x0 || (ictl_ctx[1] & 0x3) != 0x1) {
1971 fprintf(stderr, "xhci: invalid input context control %08x %08x\n",
1972 ictl_ctx[0], ictl_ctx[1]);
1973 return CC_TRB_ERROR;
1974 }
1975
59a70ccd
DG		 1976 pci_dma_read(&xhci->pci_dev, ictx+32, islot_ctx, sizeof(islot_ctx));
1977 pci_dma_read(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 1978
1979 if (SLOT_STATE(slot_ctx[3]) < SLOT_ADDRESSED) {
1980 fprintf(stderr, "xhci: invalid slot state %08x\n", slot_ctx[3]);
1981 return CC_CONTEXT_STATE_ERROR;
1982 }
1983
1984 for (i = 2; i <= 31; i++) {
1985 if (ictl_ctx[0] & (1<<i)) {
1986 xhci_disable_ep(xhci, slotid, i);
1987 }
1988 if (ictl_ctx[1] & (1<<i)) {
59a70ccd
DG		 1989 pci_dma_read(&xhci->pci_dev, ictx+32+(32*i), ep_ctx,
1990 sizeof(ep_ctx));
62c6ae04
HM		 1991 DPRINTF("xhci: input ep%d.%d context: %08x %08x %08x %08x %08x\n",
1992 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2],
1993 ep_ctx[3], ep_ctx[4]);
1994 xhci_disable_ep(xhci, slotid, i);
1995 res = xhci_enable_ep(xhci, slotid, i, octx+(32*i), ep_ctx);
1996 if (res != CC_SUCCESS) {
1997 return res;
1998 }
1999 DPRINTF("xhci: output ep%d.%d context: %08x %08x %08x %08x %08x\n",
2000 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2],
2001 ep_ctx[3], ep_ctx[4]);
59a70ccd 2002 pci_dma_write(&xhci->pci_dev, octx+(32*i), ep_ctx, sizeof(ep_ctx));
62c6ae04
HM		 2003 }
2004 }
2005
2006 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT);
2007 slot_ctx[3] |= SLOT_CONFIGURED << SLOT_STATE_SHIFT;
2008 slot_ctx[0] &= ~(SLOT_CONTEXT_ENTRIES_MASK << SLOT_CONTEXT_ENTRIES_SHIFT);
2009 slot_ctx[0] |= islot_ctx[0] & (SLOT_CONTEXT_ENTRIES_MASK <<
2010 SLOT_CONTEXT_ENTRIES_SHIFT);
2011 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n",
2012 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
2013
59a70ccd 2014 pci_dma_write(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 2015
2016 return CC_SUCCESS;
2017}
2018
2019
2020static TRBCCode xhci_evaluate_slot(XHCIState *xhci, unsigned int slotid,
2021 uint64_t pictx)
2022{
59a70ccd 2023 dma_addr_t ictx, octx;
62c6ae04
HM		 2024 uint32_t ictl_ctx[2];
2025 uint32_t iep0_ctx[5];
2026 uint32_t ep0_ctx[5];
2027 uint32_t islot_ctx[4];
2028 uint32_t slot_ctx[4];
2029
348f1037 2030 trace_usb_xhci_slot_evaluate(slotid);
62c6ae04 2031 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04
HM		 2032
2033 ictx = xhci_mask64(pictx);
2034 octx = xhci->slots[slotid-1].ctx;
2035
59a70ccd
DG		 2036 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx);
2037 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx);
62c6ae04 2038
59a70ccd 2039 pci_dma_read(&xhci->pci_dev, ictx, ictl_ctx, sizeof(ictl_ctx));
62c6ae04
HM		 2040
2041 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] & ~0x3) {
2042 fprintf(stderr, "xhci: invalid input context control %08x %08x\n",
2043 ictl_ctx[0], ictl_ctx[1]);
2044 return CC_TRB_ERROR;
2045 }
2046
2047 if (ictl_ctx[1] & 0x1) {
59a70ccd 2048 pci_dma_read(&xhci->pci_dev, ictx+32, islot_ctx, sizeof(islot_ctx));
62c6ae04
HM		 2049
2050 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n",
2051 islot_ctx[0], islot_ctx[1], islot_ctx[2], islot_ctx[3]);
2052
59a70ccd 2053 pci_dma_read(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 2054
2055 slot_ctx[1] &= ~0xFFFF; /* max exit latency */
2056 slot_ctx[1] |= islot_ctx[1] & 0xFFFF;
2057 slot_ctx[2] &= ~0xFF00000; /* interrupter target */
2058 slot_ctx[2] |= islot_ctx[2] & 0xFF000000;
2059
2060 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n",
2061 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
2062
59a70ccd 2063 pci_dma_write(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 2064 }
2065
2066 if (ictl_ctx[1] & 0x2) {
59a70ccd 2067 pci_dma_read(&xhci->pci_dev, ictx+64, iep0_ctx, sizeof(iep0_ctx));
62c6ae04
HM		 2068
2069 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n",
2070 iep0_ctx[0], iep0_ctx[1], iep0_ctx[2],
2071 iep0_ctx[3], iep0_ctx[4]);
2072
59a70ccd 2073 pci_dma_read(&xhci->pci_dev, octx+32, ep0_ctx, sizeof(ep0_ctx));
62c6ae04
HM		 2074
2075 ep0_ctx[1] &= ~0xFFFF0000; /* max packet size*/
2076 ep0_ctx[1] |= iep0_ctx[1] & 0xFFFF0000;
2077
2078 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n",
2079 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]);
2080
59a70ccd 2081 pci_dma_write(&xhci->pci_dev, octx+32, ep0_ctx, sizeof(ep0_ctx));
62c6ae04
HM		 2082 }
2083
2084 return CC_SUCCESS;
2085}
2086
2087static TRBCCode xhci_reset_slot(XHCIState *xhci, unsigned int slotid)
2088{
2089 uint32_t slot_ctx[4];
59a70ccd 2090 dma_addr_t octx;
62c6ae04
HM		 2091 int i;
2092
348f1037 2093 trace_usb_xhci_slot_reset(slotid);
62c6ae04 2094 assert(slotid >= 1 && slotid <= MAXSLOTS);
62c6ae04
HM		 2095
2096 octx = xhci->slots[slotid-1].ctx;
2097
59a70ccd 2098 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx);
62c6ae04
HM		 2099
2100 for (i = 2; i <= 31; i++) {
2101 if (xhci->slots[slotid-1].eps[i-1]) {
2102 xhci_disable_ep(xhci, slotid, i);
2103 }
2104 }
2105
59a70ccd 2106 pci_dma_read(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 2107 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT);
2108 slot_ctx[3] |= SLOT_DEFAULT << SLOT_STATE_SHIFT;
2109 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n",
2110 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]);
59a70ccd 2111 pci_dma_write(&xhci->pci_dev, octx, slot_ctx, sizeof(slot_ctx));
62c6ae04
HM		 2112
2113 return CC_SUCCESS;
2114}
2115
2116static unsigned int xhci_get_slot(XHCIState *xhci, XHCIEvent *event, XHCITRB *trb)
2117{
2118 unsigned int slotid;
2119 slotid = (trb->control >> TRB_CR_SLOTID_SHIFT) & TRB_CR_SLOTID_MASK;
2120 if (slotid < 1 || slotid > MAXSLOTS) {
2121 fprintf(stderr, "xhci: bad slot id %d\n", slotid);
2122 event->ccode = CC_TRB_ERROR;
2123 return 0;
2124 } else if (!xhci->slots[slotid-1].enabled) {
2125 fprintf(stderr, "xhci: slot id %d not enabled\n", slotid);
2126 event->ccode = CC_SLOT_NOT_ENABLED_ERROR;
2127 return 0;
2128 }
2129 return slotid;
2130}
2131
2132static TRBCCode xhci_get_port_bandwidth(XHCIState *xhci, uint64_t pctx)
2133{
59a70ccd 2134 dma_addr_t ctx;
0846e635 2135 uint8_t bw_ctx[xhci->numports+1];
62c6ae04
HM		 2136
2137 DPRINTF("xhci_get_port_bandwidth()\n");
2138
2139 ctx = xhci_mask64(pctx);
2140
59a70ccd 2141 DPRINTF("xhci: bandwidth context at "DMA_ADDR_FMT"\n", ctx);
62c6ae04
HM		 2142
2143 /* TODO: actually implement real values here */
2144 bw_ctx[0] = 0;
0846e635 2145 memset(&bw_ctx[1], 80, xhci->numports); /* 80% */
59a70ccd 2146 pci_dma_write(&xhci->pci_dev, ctx, bw_ctx, sizeof(bw_ctx));
62c6ae04
HM		 2147
2148 return CC_SUCCESS;
2149}
2150
2151static uint32_t rotl(uint32_t v, unsigned count)
2152{
2153 count &= 31;
2154 return (v << count) | (v >> (32 - count));
2155}
2156
2157
2158static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo)
2159{
2160 uint32_t val;
2161 val = rotl(lo - 0x49434878, 32 - ((hi>>8) & 0x1F));
2162 val += rotl(lo + 0x49434878, hi & 0x1F);
2163 val -= rotl(hi ^ 0x49434878, (lo >> 16) & 0x1F);
2164 return ~val;
2165}
2166
59a70ccd 2167static void xhci_via_challenge(XHCIState *xhci, uint64_t addr)
62c6ae04
HM		 2168{
2169 uint32_t buf[8];
2170 uint32_t obuf[8];
59a70ccd 2171 dma_addr_t paddr = xhci_mask64(addr);
62c6ae04 2172
59a70ccd 2173 pci_dma_read(&xhci->pci_dev, paddr, &buf, 32);
62c6ae04
HM		 2174
2175 memcpy(obuf, buf, sizeof(obuf));
2176
2177 if ((buf[0] & 0xff) == 2) {
2178 obuf[0] = 0x49932000 + 0x54dc200 * buf[2] + 0x7429b578 * buf[3];
2179 obuf[0] |= (buf[2] * buf[3]) & 0xff;
2180 obuf[1] = 0x0132bb37 + 0xe89 * buf[2] + 0xf09 * buf[3];
2181 obuf[2] = 0x0066c2e9 + 0x2091 * buf[2] + 0x19bd * buf[3];
2182 obuf[3] = 0xd5281342 + 0x2cc9691 * buf[2] + 0x2367662 * buf[3];
2183 obuf[4] = 0x0123c75c + 0x1595 * buf[2] + 0x19ec * buf[3];
2184 obuf[5] = 0x00f695de + 0x26fd * buf[2] + 0x3e9 * buf[3];
2185 obuf[6] = obuf[2] ^ obuf[3] ^ 0x29472956;
2186 obuf[7] = obuf[2] ^ obuf[3] ^ 0x65866593;
2187 }
2188
59a70ccd 2189 pci_dma_write(&xhci->pci_dev, paddr, &obuf, 32);
62c6ae04
HM		 2190}
2191
2192static void xhci_process_commands(XHCIState *xhci)
2193{
2194 XHCITRB trb;
2195 TRBType type;
2196 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS};
59a70ccd 2197 dma_addr_t addr;
62c6ae04
HM		 2198 unsigned int i, slotid = 0;
2199
2200 DPRINTF("xhci_process_commands()\n");
2201 if (!xhci_running(xhci)) {
2202 DPRINTF("xhci_process_commands() called while xHC stopped or paused\n");
2203 return;
2204 }
2205
2206 xhci->crcr_low |= CRCR_CRR;
2207
2208 while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) {
2209 event.ptr = addr;
2210 switch (type) {
2211 case CR_ENABLE_SLOT:
2212 for (i = 0; i < MAXSLOTS; i++) {
2213 if (!xhci->slots[i].enabled) {
2214 break;
2215 }
2216 }
2217 if (i >= MAXSLOTS) {
2218 fprintf(stderr, "xhci: no device slots available\n");
2219 event.ccode = CC_NO_SLOTS_ERROR;
2220 } else {
2221 slotid = i+1;
2222 event.ccode = xhci_enable_slot(xhci, slotid);
2223 }
2224 break;
2225 case CR_DISABLE_SLOT:
2226 slotid = xhci_get_slot(xhci, &event, &trb);
2227 if (slotid) {
2228 event.ccode = xhci_disable_slot(xhci, slotid);
2229 }
2230 break;
2231 case CR_ADDRESS_DEVICE:
2232 slotid = xhci_get_slot(xhci, &event, &trb);
2233 if (slotid) {
2234 event.ccode = xhci_address_slot(xhci, slotid, trb.parameter,
2235 trb.control & TRB_CR_BSR);
2236 }
2237 break;
2238 case CR_CONFIGURE_ENDPOINT:
2239 slotid = xhci_get_slot(xhci, &event, &trb);
2240 if (slotid) {
2241 event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter,
2242 trb.control & TRB_CR_DC);
2243 }
2244 break;
2245 case CR_EVALUATE_CONTEXT:
2246 slotid = xhci_get_slot(xhci, &event, &trb);
2247 if (slotid) {
2248 event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter);
2249 }
2250 break;
2251 case CR_STOP_ENDPOINT:
2252 slotid = xhci_get_slot(xhci, &event, &trb);
2253 if (slotid) {
2254 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)
2255 & TRB_CR_EPID_MASK;
2256 event.ccode = xhci_stop_ep(xhci, slotid, epid);
2257 }
2258 break;
2259 case CR_RESET_ENDPOINT:
2260 slotid = xhci_get_slot(xhci, &event, &trb);
2261 if (slotid) {
2262 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)
2263 & TRB_CR_EPID_MASK;
2264 event.ccode = xhci_reset_ep(xhci, slotid, epid);
2265 }
2266 break;
2267 case CR_SET_TR_DEQUEUE:
2268 slotid = xhci_get_slot(xhci, &event, &trb);
2269 if (slotid) {
2270 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT)
2271 & TRB_CR_EPID_MASK;
2272 event.ccode = xhci_set_ep_dequeue(xhci, slotid, epid,
2273 trb.parameter);
2274 }
2275 break;
2276 case CR_RESET_DEVICE:
2277 slotid = xhci_get_slot(xhci, &event, &trb);
2278 if (slotid) {
2279 event.ccode = xhci_reset_slot(xhci, slotid);
2280 }
2281 break;
2282 case CR_GET_PORT_BANDWIDTH:
2283 event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter);
2284 break;
2285 case CR_VENDOR_VIA_CHALLENGE_RESPONSE:
59a70ccd 2286 xhci_via_challenge(xhci, trb.parameter);
62c6ae04
HM		 2287 break;
2288 case CR_VENDOR_NEC_FIRMWARE_REVISION:
2289 event.type = 48; /* NEC reply */
2290 event.length = 0x3025;
2291 break;
2292 case CR_VENDOR_NEC_CHALLENGE_RESPONSE:
2293 {
2294 uint32_t chi = trb.parameter >> 32;
2295 uint32_t clo = trb.parameter;
2296 uint32_t val = xhci_nec_challenge(chi, clo);
2297 event.length = val & 0xFFFF;
2298 event.epid = val >> 16;
2299 slotid = val >> 24;
2300 event.type = 48; /* NEC reply */
2301 }
2302 break;
2303 default:
2304 fprintf(stderr, "xhci: unimplemented command %d\n", type);
2305 event.ccode = CC_TRB_ERROR;
2306 break;
2307 }
2308 event.slotid = slotid;
2d1de850 2309 xhci_event(xhci, &event, 0);
62c6ae04
HM		 2310 }
2311}
2312
2313static void xhci_update_port(XHCIState *xhci, XHCIPort *port, int is_detach)
2314{
62c6ae04 2315 port->portsc = PORTSC_PP;
0846e635
GH		 2316 if (port->uport->dev && port->uport->dev->attached && !is_detach &&
2317 (1 << port->uport->dev->speed) & port->speedmask) {
62c6ae04 2318 port->portsc |= PORTSC_CCS;
0846e635 2319 switch (port->uport->dev->speed) {
62c6ae04
HM		 2320 case USB_SPEED_LOW:
2321 port->portsc |= PORTSC_SPEED_LOW;
2322 break;
2323 case USB_SPEED_FULL:
2324 port->portsc |= PORTSC_SPEED_FULL;
2325 break;
2326 case USB_SPEED_HIGH:
2327 port->portsc |= PORTSC_SPEED_HIGH;
2328 break;
0846e635
GH		 2329 case USB_SPEED_SUPER:
2330 port->portsc |= PORTSC_SPEED_SUPER;
2331 break;
62c6ae04
HM		 2332 }
2333 }
2334
2335 if (xhci_running(xhci)) {
2336 port->portsc |= PORTSC_CSC;
0846e635
GH		 2337 XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS,
2338 port->portnr << 24};
2d1de850 2339 xhci_event(xhci, &ev, 0);
0846e635 2340 DPRINTF("xhci: port change event for port %d\n", port->portnr);
62c6ae04
HM		 2341 }
2342}
2343
64619739 2344static void xhci_reset(DeviceState *dev)
62c6ae04 2345{
64619739 2346 XHCIState *xhci = DO_UPCAST(XHCIState, pci_dev.qdev, dev);
62c6ae04
HM		 2347 int i;
2348
2d754a10 2349 trace_usb_xhci_reset();
62c6ae04
HM		 2350 if (!(xhci->usbsts & USBSTS_HCH)) {
2351 fprintf(stderr, "xhci: reset while running!\n");
2352 }
2353
2354 xhci->usbcmd = 0;
2355 xhci->usbsts = USBSTS_HCH;
2356 xhci->dnctrl = 0;
2357 xhci->crcr_low = 0;
2358 xhci->crcr_high = 0;
2359 xhci->dcbaap_low = 0;
2360 xhci->dcbaap_high = 0;
2361 xhci->config = 0;
2362 xhci->devaddr = 2;
2363
2364 for (i = 0; i < MAXSLOTS; i++) {
2365 xhci_disable_slot(xhci, i+1);
2366 }
2367
0846e635 2368 for (i = 0; i < xhci->numports; i++) {
62c6ae04
HM		 2369 xhci_update_port(xhci, xhci->ports + i, 0);
2370 }
2371
962d11e1
GH		 2372 for (i = 0; i < MAXINTRS; i++) {
2373 xhci->intr[i].iman = 0;
2374 xhci->intr[i].imod = 0;
2375 xhci->intr[i].erstsz = 0;
2376 xhci->intr[i].erstba_low = 0;
2377 xhci->intr[i].erstba_high = 0;
2378 xhci->intr[i].erdp_low = 0;
2379 xhci->intr[i].erdp_high = 0;
2380 xhci->intr[i].msix_used = 0;
62c6ae04 2381
962d11e1
GH		 2382 xhci->intr[i].er_ep_idx = 0;
2383 xhci->intr[i].er_pcs = 1;
2384 xhci->intr[i].er_full = 0;
2385 xhci->intr[i].ev_buffer_put = 0;
2386 xhci->intr[i].ev_buffer_get = 0;
2387 }
01546fa6
GH		 2388
2389 xhci->mfindex_start = qemu_get_clock_ns(vm_clock);
2390 xhci_mfwrap_update(xhci);
62c6ae04
HM		 2391}
2392
a8170e5e 2393static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size)
62c6ae04 2394{
1b067564 2395 XHCIState *xhci = ptr;
2d754a10 2396 uint32_t ret;
62c6ae04
HM		 2397
2398 switch (reg) {
2399 case 0x00: /* HCIVERSION, CAPLENGTH */
2d754a10
GH		 2400 ret = 0x01000000 | LEN_CAP;
2401 break;
62c6ae04 2402 case 0x04: /* HCSPARAMS 1 */
0846e635
GH		 2403 ret = ((xhci->numports_2+xhci->numports_3)<<24)
2404 | (MAXINTRS<<8) | MAXSLOTS;
2d754a10 2405 break;
62c6ae04 2406 case 0x08: /* HCSPARAMS 2 */
2d754a10
GH		 2407 ret = 0x0000000f;
2408 break;
62c6ae04 2409 case 0x0c: /* HCSPARAMS 3 */
2d754a10
GH		 2410 ret = 0x00000000;
2411 break;
62c6ae04 2412 case 0x10: /* HCCPARAMS */
2d754a10
GH		 2413 if (sizeof(dma_addr_t) == 4) {
2414 ret = 0x00081000;
2415 } else {
2416 ret = 0x00081001;
2417 }
2418 break;
62c6ae04 2419 case 0x14: /* DBOFF */
2d754a10
GH		 2420 ret = OFF_DOORBELL;
2421 break;
62c6ae04 2422 case 0x18: /* RTSOFF */
2d754a10
GH		 2423 ret = OFF_RUNTIME;
2424 break;
62c6ae04
HM		 2425
2426 /* extended capabilities */
2427 case 0x20: /* Supported Protocol:00 */
2d754a10
GH		 2428 ret = 0x02000402; /* USB 2.0 */
2429 break;
62c6ae04 2430 case 0x24: /* Supported Protocol:04 */
2d754a10
GH		 2431 ret = 0x20425455; /* "USB " */
2432 break;
62c6ae04 2433 case 0x28: /* Supported Protocol:08 */
0846e635 2434 ret = 0x00000001 | (xhci->numports_2<<8);
2d754a10 2435 break;
62c6ae04 2436 case 0x2c: /* Supported Protocol:0c */
2d754a10
GH		 2437 ret = 0x00000000; /* reserved */
2438 break;
62c6ae04 2439 case 0x30: /* Supported Protocol:00 */
2d754a10
GH		 2440 ret = 0x03000002; /* USB 3.0 */
2441 break;
62c6ae04 2442 case 0x34: /* Supported Protocol:04 */
2d754a10
GH		 2443 ret = 0x20425455; /* "USB " */
2444 break;
62c6ae04 2445 case 0x38: /* Supported Protocol:08 */
0846e635 2446 ret = 0x00000000 | (xhci->numports_2+1) | (xhci->numports_3<<8);
2d754a10 2447 break;
62c6ae04 2448 case 0x3c: /* Supported Protocol:0c */
2d754a10
GH		 2449 ret = 0x00000000; /* reserved */
2450 break;
62c6ae04 2451 default:
1b067564 2452 fprintf(stderr, "xhci_cap_read: reg %d unimplemented\n", (int)reg);
2d754a10 2453 ret = 0;
62c6ae04 2454 }
2d754a10
GH		 2455
2456 trace_usb_xhci_cap_read(reg, ret);
2457 return ret;
62c6ae04
HM		 2458}
2459
a8170e5e 2460static uint64_t xhci_port_read(void *ptr, hwaddr reg, unsigned size)
62c6ae04 2461{
1d8a4e69 2462 XHCIPort *port = ptr;
2d754a10
GH		 2463 uint32_t ret;
2464
1d8a4e69 2465 switch (reg) {
62c6ae04 2466 case 0x00: /* PORTSC */
1d8a4e69 2467 ret = port->portsc;
2d754a10 2468 break;
62c6ae04
HM		 2469 case 0x04: /* PORTPMSC */
2470 case 0x08: /* PORTLI */
2d754a10
GH		 2471 ret = 0;
2472 break;
62c6ae04
HM		 2473 case 0x0c: /* reserved */
2474 default:
2475 fprintf(stderr, "xhci_port_read (port %d): reg 0x%x unimplemented\n",
1d8a4e69 2476 port->portnr, (uint32_t)reg);
2d754a10 2477 ret = 0;
62c6ae04 2478 }
2d754a10 2479
1d8a4e69 2480 trace_usb_xhci_port_read(port->portnr, reg, ret);
2d754a10 2481 return ret;
62c6ae04
HM		 2482}
2483
a8170e5e 2484static void xhci_port_write(void *ptr, hwaddr reg,
1d8a4e69 2485 uint64_t val, unsigned size)
62c6ae04 2486{
1d8a4e69 2487 XHCIPort *port = ptr;
62c6ae04
HM		 2488 uint32_t portsc;
2489
1d8a4e69 2490 trace_usb_xhci_port_write(port->portnr, reg, val);
2d754a10 2491
1d8a4e69 2492 switch (reg) {
62c6ae04 2493 case 0x00: /* PORTSC */
1d8a4e69 2494 portsc = port->portsc;
62c6ae04
HM		 2495 /* write-1-to-clear bits*/
2496 portsc &= ~(val & (PORTSC_CSC|PORTSC_PEC|PORTSC_WRC|PORTSC_OCC|
2497 PORTSC_PRC|PORTSC_PLC|PORTSC_CEC));
2498 if (val & PORTSC_LWS) {
2499 /* overwrite PLS only when LWS=1 */
2500 portsc &= ~(PORTSC_PLS_MASK << PORTSC_PLS_SHIFT);
2501 portsc |= val & (PORTSC_PLS_MASK << PORTSC_PLS_SHIFT);
2502 }
2503 /* read/write bits */
2504 portsc &= ~(PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE);
2505 portsc |= (val & (PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE));
2506 /* write-1-to-start bits */
2507 if (val & PORTSC_PR) {
2508 DPRINTF("xhci: port %d reset\n", port);
1d8a4e69 2509 usb_device_reset(port->uport->dev);
62c6ae04
HM		 2510 portsc |= PORTSC_PRC | PORTSC_PED;
2511 }
1d8a4e69 2512 port->portsc = portsc;
62c6ae04
HM		 2513 break;
2514 case 0x04: /* PORTPMSC */
2515 case 0x08: /* PORTLI */
2516 default:
2517 fprintf(stderr, "xhci_port_write (port %d): reg 0x%x unimplemented\n",
1d8a4e69 2518 port->portnr, (uint32_t)reg);
62c6ae04
HM		 2519 }
2520}
2521
a8170e5e 2522static uint64_t xhci_oper_read(void *ptr, hwaddr reg, unsigned size)
62c6ae04 2523{
1b067564 2524 XHCIState *xhci = ptr;
2d754a10 2525 uint32_t ret;
62c6ae04 2526
62c6ae04
HM		 2527 switch (reg) {
2528 case 0x00: /* USBCMD */
2d754a10
GH		 2529 ret = xhci->usbcmd;
2530 break;
62c6ae04 2531 case 0x04: /* USBSTS */
2d754a10
GH		 2532 ret = xhci->usbsts;
2533 break;
62c6ae04 2534 case 0x08: /* PAGESIZE */
2d754a10
GH		 2535 ret = 1; /* 4KiB */
2536 break;
62c6ae04 2537 case 0x14: /* DNCTRL */
2d754a10
GH		 2538 ret = xhci->dnctrl;
2539 break;
62c6ae04 2540 case 0x18: /* CRCR low */
2d754a10
GH		 2541 ret = xhci->crcr_low & ~0xe;
2542 break;
62c6ae04 2543 case 0x1c: /* CRCR high */
2d754a10
GH		 2544 ret = xhci->crcr_high;
2545 break;
62c6ae04 2546 case 0x30: /* DCBAAP low */
2d754a10
GH		 2547 ret = xhci->dcbaap_low;
2548 break;
62c6ae04 2549 case 0x34: /* DCBAAP high */
2d754a10
GH		 2550 ret = xhci->dcbaap_high;
2551 break;
62c6ae04 2552 case 0x38: /* CONFIG */
2d754a10
GH		 2553 ret = xhci->config;
2554 break;
62c6ae04 2555 default:
1b067564 2556 fprintf(stderr, "xhci_oper_read: reg 0x%x unimplemented\n", (int)reg);
2d754a10 2557 ret = 0;
62c6ae04 2558 }
2d754a10
GH		 2559
2560 trace_usb_xhci_oper_read(reg, ret);
2561 return ret;
62c6ae04
HM		 2562}
2563
a8170e5e 2564static void xhci_oper_write(void *ptr, hwaddr reg,
1b067564 2565 uint64_t val, unsigned size)
62c6ae04 2566{
1b067564
GH		 2567 XHCIState *xhci = ptr;
2568
2d754a10
GH		 2569 trace_usb_xhci_oper_write(reg, val);
2570
62c6ae04
HM		 2571 switch (reg) {
2572 case 0x00: /* USBCMD */
2573 if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) {
2574 xhci_run(xhci);
2575 } else if (!(val & USBCMD_RS) && (xhci->usbcmd & USBCMD_RS)) {
2576 xhci_stop(xhci);
2577 }
2578 xhci->usbcmd = val & 0xc0f;
01546fa6 2579 xhci_mfwrap_update(xhci);
62c6ae04 2580 if (val & USBCMD_HCRST) {
64619739 2581 xhci_reset(&xhci->pci_dev.qdev);
62c6ae04 2582 }
4c4abe7c 2583 xhci_intx_update(xhci);
62c6ae04
HM		 2584 break;
2585
2586 case 0x04: /* USBSTS */
2587 /* these bits are write-1-to-clear */
2588 xhci->usbsts &= ~(val & (USBSTS_HSE|USBSTS_EINT|USBSTS_PCD|USBSTS_SRE));
4c4abe7c 2589 xhci_intx_update(xhci);
62c6ae04
HM		 2590 break;
2591
2592 case 0x14: /* DNCTRL */
2593 xhci->dnctrl = val & 0xffff;
2594 break;
2595 case 0x18: /* CRCR low */
2596 xhci->crcr_low = (val & 0xffffffcf) | (xhci->crcr_low & CRCR_CRR);
2597 break;
2598 case 0x1c: /* CRCR high */
2599 xhci->crcr_high = val;
2600 if (xhci->crcr_low & (CRCR_CA|CRCR_CS) && (xhci->crcr_low & CRCR_CRR)) {
2601 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_COMMAND_RING_STOPPED};
2602 xhci->crcr_low &= ~CRCR_CRR;
2d1de850 2603 xhci_event(xhci, &event, 0);
62c6ae04
HM		 2604 DPRINTF("xhci: command ring stopped (CRCR=%08x)\n", xhci->crcr_low);
2605 } else {
59a70ccd 2606 dma_addr_t base = xhci_addr64(xhci->crcr_low & ~0x3f, val);
62c6ae04
HM		 2607 xhci_ring_init(xhci, &xhci->cmd_ring, base);
2608 }
2609 xhci->crcr_low &= ~(CRCR_CA | CRCR_CS);
2610 break;
2611 case 0x30: /* DCBAAP low */
2612 xhci->dcbaap_low = val & 0xffffffc0;
2613 break;
2614 case 0x34: /* DCBAAP high */
2615 xhci->dcbaap_high = val;
2616 break;
2617 case 0x38: /* CONFIG */
2618 xhci->config = val & 0xff;
2619 break;
2620 default:
1b067564 2621 fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", (int)reg);
62c6ae04
HM		 2622 }
2623}
2624
a8170e5e 2625static uint64_t xhci_runtime_read(void *ptr, hwaddr reg,
1b067564 2626 unsigned size)
62c6ae04 2627{
1b067564 2628 XHCIState *xhci = ptr;
43d9d604 2629 uint32_t ret = 0;
62c6ae04 2630
43d9d604
GH		 2631 if (reg < 0x20) {
2632 switch (reg) {
2633 case 0x00: /* MFINDEX */
2634 ret = xhci_mfindex_get(xhci) & 0x3fff;
2635 break;
2636 default:
1b067564
GH		 2637 fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n",
2638 (int)reg);
43d9d604
GH		 2639 break;
2640 }
2641 } else {
2642 int v = (reg - 0x20) / 0x20;
2643 XHCIInterrupter *intr = &xhci->intr[v];
2644 switch (reg & 0x1f) {
2645 case 0x00: /* IMAN */
2646 ret = intr->iman;
2647 break;
2648 case 0x04: /* IMOD */
2649 ret = intr->imod;
2650 break;
2651 case 0x08: /* ERSTSZ */
2652 ret = intr->erstsz;
2653 break;
2654 case 0x10: /* ERSTBA low */
2655 ret = intr->erstba_low;
2656 break;
2657 case 0x14: /* ERSTBA high */
2658 ret = intr->erstba_high;
2659 break;
2660 case 0x18: /* ERDP low */
2661 ret = intr->erdp_low;
2662 break;
2663 case 0x1c: /* ERDP high */
2664 ret = intr->erdp_high;
2665 break;
2666 }
62c6ae04 2667 }
2d754a10
GH		 2668
2669 trace_usb_xhci_runtime_read(reg, ret);
2670 return ret;
62c6ae04
HM		 2671}
2672
a8170e5e 2673static void xhci_runtime_write(void *ptr, hwaddr reg,
1b067564 2674 uint64_t val, unsigned size)
62c6ae04 2675{
1b067564 2676 XHCIState *xhci = ptr;
43d9d604
GH		 2677 int v = (reg - 0x20) / 0x20;
2678 XHCIInterrupter *intr = &xhci->intr[v];
8e9f18b6 2679 trace_usb_xhci_runtime_write(reg, val);
62c6ae04 2680
43d9d604 2681 if (reg < 0x20) {
79a8af35 2682 fprintf(stderr, "%s: reg 0x%x unimplemented\n", __func__, (int)reg);
43d9d604
GH		 2683 return;
2684 }
2685
2686 switch (reg & 0x1f) {
2687 case 0x00: /* IMAN */
62c6ae04 2688 if (val & IMAN_IP) {
962d11e1 2689 intr->iman &= ~IMAN_IP;
62c6ae04 2690 }
962d11e1
GH		 2691 intr->iman &= ~IMAN_IE;
2692 intr->iman |= val & IMAN_IE;
43d9d604
GH		 2693 if (v == 0) {
2694 xhci_intx_update(xhci);
2695 }
2696 xhci_msix_update(xhci, v);
62c6ae04 2697 break;
43d9d604 2698 case 0x04: /* IMOD */
962d11e1 2699 intr->imod = val;
62c6ae04 2700 break;
43d9d604 2701 case 0x08: /* ERSTSZ */
962d11e1 2702 intr->erstsz = val & 0xffff;
62c6ae04 2703 break;
43d9d604 2704 case 0x10: /* ERSTBA low */
62c6ae04 2705 /* XXX NEC driver bug: it doesn't align this to 64 bytes
962d11e1
GH		 2706 intr->erstba_low = val & 0xffffffc0; */
2707 intr->erstba_low = val & 0xfffffff0;
62c6ae04 2708 break;
43d9d604 2709 case 0x14: /* ERSTBA high */
962d11e1 2710 intr->erstba_high = val;
43d9d604 2711 xhci_er_reset(xhci, v);
62c6ae04 2712 break;
43d9d604 2713 case 0x18: /* ERDP low */
62c6ae04 2714 if (val & ERDP_EHB) {
962d11e1 2715 intr->erdp_low &= ~ERDP_EHB;
62c6ae04 2716 }
962d11e1 2717 intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB);
62c6ae04 2718 break;
43d9d604 2719 case 0x1c: /* ERDP high */
962d11e1 2720 intr->erdp_high = val;
43d9d604 2721 xhci_events_update(xhci, v);
62c6ae04
HM		 2722 break;
2723 default:
1b067564
GH		 2724 fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n",
2725 (int)reg);
62c6ae04
HM		 2726 }
2727}
2728
a8170e5e 2729static uint64_t xhci_doorbell_read(void *ptr, hwaddr reg,
1b067564 2730 unsigned size)
62c6ae04 2731{
62c6ae04 2732 /* doorbells always read as 0 */
2d754a10 2733 trace_usb_xhci_doorbell_read(reg, 0);
62c6ae04
HM		 2734 return 0;
2735}
2736
a8170e5e 2737static void xhci_doorbell_write(void *ptr, hwaddr reg,
1b067564 2738 uint64_t val, unsigned size)
62c6ae04 2739{
1b067564
GH		 2740 XHCIState *xhci = ptr;
2741
2d754a10 2742 trace_usb_xhci_doorbell_write(reg, val);
62c6ae04
HM		 2743
2744 if (!xhci_running(xhci)) {
2745 fprintf(stderr, "xhci: wrote doorbell while xHC stopped or paused\n");
2746 return;
2747 }
2748
2749 reg >>= 2;
2750
2751 if (reg == 0) {
2752 if (val == 0) {
2753 xhci_process_commands(xhci);
2754 } else {
1b067564
GH		 2755 fprintf(stderr, "xhci: bad doorbell 0 write: 0x%x\n",
2756 (uint32_t)val);
62c6ae04
HM		 2757 }
2758 } else {
2759 if (reg > MAXSLOTS) {
1b067564 2760 fprintf(stderr, "xhci: bad doorbell %d\n", (int)reg);
62c6ae04 2761 } else if (val > 31) {
1b067564
GH		 2762 fprintf(stderr, "xhci: bad doorbell %d write: 0x%x\n",
2763 (int)reg, (uint32_t)val);
62c6ae04
HM		 2764 } else {
2765 xhci_kick_ep(xhci, reg, val);
2766 }
2767 }
2768}
2769
1b067564
GH		 2770static const MemoryRegionOps xhci_cap_ops = {
2771 .read = xhci_cap_read,
6ee021d4 2772 .valid.min_access_size = 1,
1b067564 2773 .valid.max_access_size = 4,
6ee021d4
GH		 2774 .impl.min_access_size = 4,
2775 .impl.max_access_size = 4,
1b067564
GH		 2776 .endianness = DEVICE_LITTLE_ENDIAN,
2777};
62c6ae04 2778
1b067564
GH		 2779static const MemoryRegionOps xhci_oper_ops = {
2780 .read = xhci_oper_read,
2781 .write = xhci_oper_write,
2782 .valid.min_access_size = 4,
2783 .valid.max_access_size = 4,
2784 .endianness = DEVICE_LITTLE_ENDIAN,
2785};
62c6ae04 2786
1d8a4e69
GH		 2787static const MemoryRegionOps xhci_port_ops = {
2788 .read = xhci_port_read,
2789 .write = xhci_port_write,
2790 .valid.min_access_size = 4,
2791 .valid.max_access_size = 4,
2792 .endianness = DEVICE_LITTLE_ENDIAN,
2793};
2794
1b067564
GH		 2795static const MemoryRegionOps xhci_runtime_ops = {
2796 .read = xhci_runtime_read,
2797 .write = xhci_runtime_write,
2798 .valid.min_access_size = 4,
2799 .valid.max_access_size = 4,
2800 .endianness = DEVICE_LITTLE_ENDIAN,
2801};
62c6ae04 2802
1b067564
GH		 2803static const MemoryRegionOps xhci_doorbell_ops = {
2804 .read = xhci_doorbell_read,
2805 .write = xhci_doorbell_write,
62c6ae04
HM		 2806 .valid.min_access_size = 4,
2807 .valid.max_access_size = 4,
2808 .endianness = DEVICE_LITTLE_ENDIAN,
2809};
2810
2811static void xhci_attach(USBPort *usbport)
2812{
2813 XHCIState *xhci = usbport->opaque;
0846e635 2814 XHCIPort *port = xhci_lookup_port(xhci, usbport);
62c6ae04
HM		 2815
2816 xhci_update_port(xhci, port, 0);
2817}
2818
2819static void xhci_detach(USBPort *usbport)
2820{
2821 XHCIState *xhci = usbport->opaque;
0846e635 2822 XHCIPort *port = xhci_lookup_port(xhci, usbport);
62c6ae04
HM		 2823
2824 xhci_update_port(xhci, port, 1);
2825}
2826
8c735e43
GH		 2827static void xhci_wakeup(USBPort *usbport)
2828{
2829 XHCIState *xhci = usbport->opaque;
0846e635
GH		 2830 XHCIPort *port = xhci_lookup_port(xhci, usbport);
2831 XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS,
2832 port->portnr << 24};
8c735e43
GH		 2833 uint32_t pls;
2834
2835 pls = (port->portsc >> PORTSC_PLS_SHIFT) & PORTSC_PLS_MASK;
2836 if (pls != 3) {
2837 return;
2838 }
2839 port->portsc |= 0xf << PORTSC_PLS_SHIFT;
2840 if (port->portsc & PORTSC_PLC) {
2841 return;
2842 }
2843 port->portsc |= PORTSC_PLC;
2d1de850 2844 xhci_event(xhci, &ev, 0);
8c735e43
GH		 2845}
2846
62c6ae04
HM		 2847static void xhci_complete(USBPort *port, USBPacket *packet)
2848{
2849 XHCITransfer *xfer = container_of(packet, XHCITransfer, packet);
2850
0cae7b1a
HG		 2851 if (packet->result == USB_RET_REMOVE_FROM_QUEUE) {
2852 xhci_ep_nuke_one_xfer(xfer);
2853 return;
2854 }
62c6ae04
HM		 2855 xhci_complete_packet(xfer, packet->result);
2856 xhci_kick_ep(xfer->xhci, xfer->slotid, xfer->epid);
2857}
2858
ccaf87a0 2859static void xhci_child_detach(USBPort *uport, USBDevice *child)
62c6ae04 2860{
ccaf87a0
GH		 2861 USBBus *bus = usb_bus_from_device(child);
2862 XHCIState *xhci = container_of(bus, XHCIState, bus);
2863 int i;
2864
2865 for (i = 0; i < MAXSLOTS; i++) {
2866 if (xhci->slots[i].uport == uport) {
2867 xhci->slots[i].uport = NULL;
2868 }
2869 }
62c6ae04
HM		 2870}
2871
1d8a4e69 2872static USBPortOps xhci_uport_ops = {
62c6ae04
HM		 2873 .attach = xhci_attach,
2874 .detach = xhci_detach,
8c735e43 2875 .wakeup = xhci_wakeup,
62c6ae04
HM		 2876 .complete = xhci_complete,
2877 .child_detach = xhci_child_detach,
2878};
2879
7c605a23
GH		 2880static int xhci_find_slotid(XHCIState *xhci, USBDevice *dev)
2881{
2882 XHCISlot *slot;
2883 int slotid;
2884
2885 for (slotid = 1; slotid <= MAXSLOTS; slotid++) {
2886 slot = &xhci->slots[slotid-1];
2887 if (slot->devaddr == dev->addr) {
2888 return slotid;
2889 }
2890 }
2891 return 0;
2892}
2893
2894static int xhci_find_epid(USBEndpoint *ep)
2895{
2896 if (ep->nr == 0) {
2897 return 1;
2898 }
2899 if (ep->pid == USB_TOKEN_IN) {
2900 return ep->nr * 2 + 1;
2901 } else {
2902 return ep->nr * 2;
2903 }
2904}
2905
2906static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep)
2907{
2908 XHCIState *xhci = container_of(bus, XHCIState, bus);
2909 int slotid;
2910
2911 DPRINTF("%s\n", __func__);
2912 slotid = xhci_find_slotid(xhci, ep->dev);
2913 if (slotid == 0 || !xhci->slots[slotid-1].enabled) {
2914 DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr);
2915 return;
2916 }
2917 xhci_kick_ep(xhci, slotid, xhci_find_epid(ep));
2918}
2919
62c6ae04 2920static USBBusOps xhci_bus_ops = {
7c605a23 2921 .wakeup_endpoint = xhci_wakeup_endpoint,
62c6ae04
HM		 2922};
2923
2924static void usb_xhci_init(XHCIState *xhci, DeviceState *dev)
2925{
0846e635
GH		 2926 XHCIPort *port;
2927 int i, usbports, speedmask;
62c6ae04
HM		 2928
2929 xhci->usbsts = USBSTS_HCH;
2930
0846e635
GH		 2931 if (xhci->numports_2 > MAXPORTS_2) {
2932 xhci->numports_2 = MAXPORTS_2;
2933 }
2934 if (xhci->numports_3 > MAXPORTS_3) {
2935 xhci->numports_3 = MAXPORTS_3;
2936 }
2937 usbports = MAX(xhci->numports_2, xhci->numports_3);
2938 xhci->numports = xhci->numports_2 + xhci->numports_3;
2939
62c6ae04
HM		 2940 usb_bus_new(&xhci->bus, &xhci_bus_ops, &xhci->pci_dev.qdev);
2941
0846e635
GH		 2942 for (i = 0; i < usbports; i++) {
2943 speedmask = 0;
2944 if (i < xhci->numports_2) {
2945 port = &xhci->ports[i];
2946 port->portnr = i + 1;
2947 port->uport = &xhci->uports[i];
2948 port->speedmask =
2949 USB_SPEED_MASK_LOW |
2950 USB_SPEED_MASK_FULL |
2951 USB_SPEED_MASK_HIGH;
1d8a4e69 2952 snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1);
0846e635
GH		 2953 speedmask |= port->speedmask;
2954 }
2955 if (i < xhci->numports_3) {
2956 port = &xhci->ports[i + xhci->numports_2];
2957 port->portnr = i + 1 + xhci->numports_2;
2958 port->uport = &xhci->uports[i];
2959 port->speedmask = USB_SPEED_MASK_SUPER;
1d8a4e69 2960 snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1);
0846e635
GH		 2961 speedmask |= port->speedmask;
2962 }
2963 usb_register_port(&xhci->bus, &xhci->uports[i], xhci, i,
1d8a4e69 2964 &xhci_uport_ops, speedmask);
62c6ae04 2965 }
62c6ae04
HM		 2966}
2967
2968static int usb_xhci_initfn(struct PCIDevice *dev)
2969{
1d8a4e69 2970 int i, ret;
62c6ae04
HM		 2971
2972 XHCIState *xhci = DO_UPCAST(XHCIState, pci_dev, dev);
2973
2974 xhci->pci_dev.config[PCI_CLASS_PROG] = 0x30; /* xHCI */
2975 xhci->pci_dev.config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */
2976 xhci->pci_dev.config[PCI_CACHE_LINE_SIZE] = 0x10;
2977 xhci->pci_dev.config[0x60] = 0x30; /* release number */
2978
2979 usb_xhci_init(xhci, &dev->qdev);
2980
01546fa6
GH		 2981 xhci->mfwrap_timer = qemu_new_timer_ns(vm_clock, xhci_mfwrap_timer, xhci);
2982
62c6ae04
HM		 2983 xhci->irq = xhci->pci_dev.irq[0];
2984
1b067564
GH		 2985 memory_region_init(&xhci->mem, "xhci", LEN_REGS);
2986 memory_region_init_io(&xhci->mem_cap, &xhci_cap_ops, xhci,
2987 "capabilities", LEN_CAP);
2988 memory_region_init_io(&xhci->mem_oper, &xhci_oper_ops, xhci,
1d8a4e69 2989 "operational", 0x400);
1b067564
GH		 2990 memory_region_init_io(&xhci->mem_runtime, &xhci_runtime_ops, xhci,
2991 "runtime", LEN_RUNTIME);
2992 memory_region_init_io(&xhci->mem_doorbell, &xhci_doorbell_ops, xhci,
2993 "doorbell", LEN_DOORBELL);
2994
2995 memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap);
2996 memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper);
2997 memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime);
2998 memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell);
2999
1d8a4e69
GH		 3000 for (i = 0; i < xhci->numports; i++) {
3001 XHCIPort *port = &xhci->ports[i];
3002 uint32_t offset = OFF_OPER + 0x400 + 0x10 * i;
3003 port->xhci = xhci;
3004 memory_region_init_io(&port->mem, &xhci_port_ops, port,
3005 port->name, 0x10);
3006 memory_region_add_subregion(&xhci->mem, offset, &port->mem);
3007 }
3008
62c6ae04
HM		 3009 pci_register_bar(&xhci->pci_dev, 0,
3010 PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64,
3011 &xhci->mem);
3012
3013 ret = pcie_cap_init(&xhci->pci_dev, 0xa0, PCI_EXP_TYPE_ENDPOINT, 0);
3014 assert(ret >= 0);
3015
c5e9b02d
GH		 3016 if (xhci->flags & (1 << XHCI_FLAG_USE_MSI)) {
3017 msi_init(&xhci->pci_dev, 0x70, MAXINTRS, true, false);
62c6ae04 3018 }
4c47f800
GH		 3019 if (xhci->flags & (1 << XHCI_FLAG_USE_MSI_X)) {
3020 msix_init(&xhci->pci_dev, MAXINTRS,
3021 &xhci->mem, 0, OFF_MSIX_TABLE,
3022 &xhci->mem, 0, OFF_MSIX_PBA,
3023 0x90);
3024 }
62c6ae04
HM		 3025
3026 return 0;
3027}
3028
62c6ae04
HM		 3029static const VMStateDescription vmstate_xhci = {
3030 .name = "xhci",
3031 .unmigratable = 1,
3032};
3033
39bffca2 3034static Property xhci_properties[] = {
c5e9b02d 3035 DEFINE_PROP_BIT("msi", XHCIState, flags, XHCI_FLAG_USE_MSI, true),
4c47f800 3036 DEFINE_PROP_BIT("msix", XHCIState, flags, XHCI_FLAG_USE_MSI_X, true),
0846e635
GH		 3037 DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4),
3038 DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4),
39bffca2
AL		 3039 DEFINE_PROP_END_OF_LIST(),
3040};
3041
40021f08
AL		 3042static void xhci_class_init(ObjectClass *klass, void *data)
3043{
3044 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
39bffca2 3045 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08 3046
39bffca2
AL		 3047 dc->vmsd = &vmstate_xhci;
3048 dc->props = xhci_properties;
64619739 3049 dc->reset = xhci_reset;
40021f08
AL		 3050 k->init = usb_xhci_initfn;
3051 k->vendor_id = PCI_VENDOR_ID_NEC;
3052 k->device_id = PCI_DEVICE_ID_NEC_UPD720200;
3053 k->class_id = PCI_CLASS_SERIAL_USB;
3054 k->revision = 0x03;
3055 k->is_express = 1;
40021f08
AL		 3056}
3057
39bffca2
AL		 3058static TypeInfo xhci_info = {
3059 .name = "nec-usb-xhci",
3060 .parent = TYPE_PCI_DEVICE,
3061 .instance_size = sizeof(XHCIState),
3062 .class_init = xhci_class_init,
62c6ae04
HM		 3063};
3064
83f7d43a 3065static void xhci_register_types(void)
62c6ae04 3066{
39bffca2 3067 type_register_static(&xhci_info);
62c6ae04 3068}
83f7d43a
AF		 3069
3070type_init(xhci_register_types)
Qemu copy for testing