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 */ 21 #include "hw/hw.h" 22 #include "qemu/timer.h" 23 #include "hw/usb.h" 24 #include "hw/pci/pci.h" 25 #include "hw/pci/msi.h" 26 #include "hw/pci/msix.h" 27 #include "trace.h" 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(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \ 38 __func__, __LINE__, _msg); abort(); } while (0) 39 40 #define MAXPORTS_2 15 41 #define MAXPORTS_3 15 42 43 #define MAXPORTS (MAXPORTS_2+MAXPORTS_3) 44 #define MAXSLOTS 64 45 #define MAXINTRS 16 46 47 #define TD_QUEUE 24 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 56 #define LEN_OPER (0x400 + 0x10 * MAXPORTS) 57 #define LEN_RUNTIME ((MAXINTRS + 1) * 0x20) 58 #define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20) 59 60 #define OFF_OPER LEN_CAP 61 #define OFF_RUNTIME 0x1000 62 #define OFF_DOORBELL 0x2000 63 #define OFF_MSIX_TABLE 0x3000 64 #define OFF_MSIX_PBA 0x3800 65 /* must be power of 2 */ 66 #define LEN_REGS 0x4000 67 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 74 #if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS 75 # error Increase LEN_REGS 76 #endif 77 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 16 141 typedef struct XHCITRB { 142 uint64_t parameter; 143 uint32_t status; 144 uint32_t control; 145 dma_addr_t addr; 146 bool ccs; 147 } XHCITRB; 148 149 enum { 150 PLS_U0 = 0, 151 PLS_U1 = 1, 152 PLS_U2 = 2, 153 PLS_U3 = 3, 154 PLS_DISABLED = 4, 155 PLS_RX_DETECT = 5, 156 PLS_INACTIVE = 6, 157 PLS_POLLING = 7, 158 PLS_RECOVERY = 8, 159 PLS_HOT_RESET = 9, 160 PLS_COMPILANCE_MODE = 10, 161 PLS_TEST_MODE = 11, 162 PLS_RESUME = 15, 163 }; 164 165 typedef enum TRBType { 166 TRB_RESERVED = 0, 167 TR_NORMAL, 168 TR_SETUP, 169 TR_DATA, 170 TR_STATUS, 171 TR_ISOCH, 172 TR_LINK, 173 TR_EVDATA, 174 TR_NOOP, 175 CR_ENABLE_SLOT, 176 CR_DISABLE_SLOT, 177 CR_ADDRESS_DEVICE, 178 CR_CONFIGURE_ENDPOINT, 179 CR_EVALUATE_CONTEXT, 180 CR_RESET_ENDPOINT, 181 CR_STOP_ENDPOINT, 182 CR_SET_TR_DEQUEUE, 183 CR_RESET_DEVICE, 184 CR_FORCE_EVENT, 185 CR_NEGOTIATE_BW, 186 CR_SET_LATENCY_TOLERANCE, 187 CR_GET_PORT_BANDWIDTH, 188 CR_FORCE_HEADER, 189 CR_NOOP, 190 ER_TRANSFER = 32, 191 ER_COMMAND_COMPLETE, 192 ER_PORT_STATUS_CHANGE, 193 ER_BANDWIDTH_REQUEST, 194 ER_DOORBELL, 195 ER_HOST_CONTROLLER, 196 ER_DEVICE_NOTIFICATION, 197 ER_MFINDEX_WRAP, 198 /* vendor specific bits */ 199 CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48, 200 CR_VENDOR_NEC_FIRMWARE_REVISION = 49, 201 CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50, 202 } TRBType; 203 204 #define CR_LINK TR_LINK 205 206 typedef enum TRBCCode { 207 CC_INVALID = 0, 208 CC_SUCCESS, 209 CC_DATA_BUFFER_ERROR, 210 CC_BABBLE_DETECTED, 211 CC_USB_TRANSACTION_ERROR, 212 CC_TRB_ERROR, 213 CC_STALL_ERROR, 214 CC_RESOURCE_ERROR, 215 CC_BANDWIDTH_ERROR, 216 CC_NO_SLOTS_ERROR, 217 CC_INVALID_STREAM_TYPE_ERROR, 218 CC_SLOT_NOT_ENABLED_ERROR, 219 CC_EP_NOT_ENABLED_ERROR, 220 CC_SHORT_PACKET, 221 CC_RING_UNDERRUN, 222 CC_RING_OVERRUN, 223 CC_VF_ER_FULL, 224 CC_PARAMETER_ERROR, 225 CC_BANDWIDTH_OVERRUN, 226 CC_CONTEXT_STATE_ERROR, 227 CC_NO_PING_RESPONSE_ERROR, 228 CC_EVENT_RING_FULL_ERROR, 229 CC_INCOMPATIBLE_DEVICE_ERROR, 230 CC_MISSED_SERVICE_ERROR, 231 CC_COMMAND_RING_STOPPED, 232 CC_COMMAND_ABORTED, 233 CC_STOPPED, 234 CC_STOPPED_LENGTH_INVALID, 235 CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR = 29, 236 CC_ISOCH_BUFFER_OVERRUN = 31, 237 CC_EVENT_LOST_ERROR, 238 CC_UNDEFINED_ERROR, 239 CC_INVALID_STREAM_ID_ERROR, 240 CC_SECONDARY_BANDWIDTH_ERROR, 241 CC_SPLIT_TRANSACTION_ERROR 242 } TRBCCode; 243 244 #define TRB_C (1<<0) 245 #define TRB_TYPE_SHIFT 10 246 #define TRB_TYPE_MASK 0x3f 247 #define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK) 248 249 #define TRB_EV_ED (1<<2) 250 251 #define TRB_TR_ENT (1<<1) 252 #define TRB_TR_ISP (1<<2) 253 #define TRB_TR_NS (1<<3) 254 #define TRB_TR_CH (1<<4) 255 #define TRB_TR_IOC (1<<5) 256 #define TRB_TR_IDT (1<<6) 257 #define TRB_TR_TBC_SHIFT 7 258 #define TRB_TR_TBC_MASK 0x3 259 #define TRB_TR_BEI (1<<9) 260 #define TRB_TR_TLBPC_SHIFT 16 261 #define TRB_TR_TLBPC_MASK 0xf 262 #define TRB_TR_FRAMEID_SHIFT 20 263 #define TRB_TR_FRAMEID_MASK 0x7ff 264 #define TRB_TR_SIA (1<<31) 265 266 #define TRB_TR_DIR (1<<16) 267 268 #define TRB_CR_SLOTID_SHIFT 24 269 #define TRB_CR_SLOTID_MASK 0xff 270 #define TRB_CR_EPID_SHIFT 16 271 #define TRB_CR_EPID_MASK 0x1f 272 273 #define TRB_CR_BSR (1<<9) 274 #define TRB_CR_DC (1<<9) 275 276 #define TRB_LK_TC (1<<1) 277 278 #define TRB_INTR_SHIFT 22 279 #define TRB_INTR_MASK 0x3ff 280 #define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK) 281 282 #define EP_TYPE_MASK 0x7 283 #define EP_TYPE_SHIFT 3 284 285 #define EP_STATE_MASK 0x7 286 #define EP_DISABLED (0<<0) 287 #define EP_RUNNING (1<<0) 288 #define EP_HALTED (2<<0) 289 #define EP_STOPPED (3<<0) 290 #define EP_ERROR (4<<0) 291 292 #define SLOT_STATE_MASK 0x1f 293 #define SLOT_STATE_SHIFT 27 294 #define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK) 295 #define SLOT_ENABLED 0 296 #define SLOT_DEFAULT 1 297 #define SLOT_ADDRESSED 2 298 #define SLOT_CONFIGURED 3 299 300 #define SLOT_CONTEXT_ENTRIES_MASK 0x1f 301 #define SLOT_CONTEXT_ENTRIES_SHIFT 27 302 303 typedef struct XHCIState XHCIState; 304 typedef struct XHCIStreamContext XHCIStreamContext; 305 typedef struct XHCIEPContext XHCIEPContext; 306 307 #define get_field(data, field) \ 308 (((data) >> field##_SHIFT) & field##_MASK) 309 310 #define set_field(data, newval, field) do { \ 311 uint32_t val = *data; \ 312 val &= ~(field##_MASK << field##_SHIFT); \ 313 val |= ((newval) & field##_MASK) << field##_SHIFT; \ 314 *data = val; \ 315 } while (0) 316 317 typedef enum EPType { 318 ET_INVALID = 0, 319 ET_ISO_OUT, 320 ET_BULK_OUT, 321 ET_INTR_OUT, 322 ET_CONTROL, 323 ET_ISO_IN, 324 ET_BULK_IN, 325 ET_INTR_IN, 326 } EPType; 327 328 typedef struct XHCIRing { 329 dma_addr_t dequeue; 330 bool ccs; 331 } XHCIRing; 332 333 typedef struct XHCIPort { 334 XHCIState *xhci; 335 uint32_t portsc; 336 uint32_t portnr; 337 USBPort *uport; 338 uint32_t speedmask; 339 char name[16]; 340 MemoryRegion mem; 341 } XHCIPort; 342 343 typedef struct XHCITransfer { 344 XHCIState *xhci; 345 USBPacket packet; 346 QEMUSGList sgl; 347 bool running_async; 348 bool running_retry; 349 bool cancelled; 350 bool complete; 351 bool int_req; 352 unsigned int iso_pkts; 353 unsigned int slotid; 354 unsigned int epid; 355 unsigned int streamid; 356 bool in_xfer; 357 bool iso_xfer; 358 bool timed_xfer; 359 360 unsigned int trb_count; 361 unsigned int trb_alloced; 362 XHCITRB *trbs; 363 364 TRBCCode status; 365 366 unsigned int pkts; 367 unsigned int pktsize; 368 unsigned int cur_pkt; 369 370 uint64_t mfindex_kick; 371 } XHCITransfer; 372 373 struct XHCIStreamContext { 374 dma_addr_t pctx; 375 unsigned int sct; 376 XHCIRing ring; 377 XHCIStreamContext *sstreams; 378 }; 379 380 struct XHCIEPContext { 381 XHCIState *xhci; 382 unsigned int slotid; 383 unsigned int epid; 384 385 XHCIRing ring; 386 unsigned int next_xfer; 387 unsigned int comp_xfer; 388 XHCITransfer transfers[TD_QUEUE]; 389 XHCITransfer *retry; 390 EPType type; 391 dma_addr_t pctx; 392 unsigned int max_psize; 393 uint32_t state; 394 395 /* streams */ 396 unsigned int max_pstreams; 397 bool lsa; 398 unsigned int nr_pstreams; 399 XHCIStreamContext *pstreams; 400 401 /* iso xfer scheduling */ 402 unsigned int interval; 403 int64_t mfindex_last; 404 QEMUTimer *kick_timer; 405 }; 406 407 typedef struct XHCISlot { 408 bool enabled; 409 bool addressed; 410 dma_addr_t ctx; 411 USBPort *uport; 412 XHCIEPContext * eps[31]; 413 } XHCISlot; 414 415 typedef struct XHCIEvent { 416 TRBType type; 417 TRBCCode ccode; 418 uint64_t ptr; 419 uint32_t length; 420 uint32_t flags; 421 uint8_t slotid; 422 uint8_t epid; 423 } XHCIEvent; 424 425 typedef struct XHCIInterrupter { 426 uint32_t iman; 427 uint32_t imod; 428 uint32_t erstsz; 429 uint32_t erstba_low; 430 uint32_t erstba_high; 431 uint32_t erdp_low; 432 uint32_t erdp_high; 433 434 bool msix_used, er_pcs, er_full; 435 436 dma_addr_t er_start; 437 uint32_t er_size; 438 unsigned int er_ep_idx; 439 440 XHCIEvent ev_buffer[EV_QUEUE]; 441 unsigned int ev_buffer_put; 442 unsigned int ev_buffer_get; 443 444 } XHCIInterrupter; 445 446 struct XHCIState { 447 /*< private >*/ 448 PCIDevice parent_obj; 449 /*< public >*/ 450 451 USBBus bus; 452 MemoryRegion mem; 453 MemoryRegion mem_cap; 454 MemoryRegion mem_oper; 455 MemoryRegion mem_runtime; 456 MemoryRegion mem_doorbell; 457 458 /* properties */ 459 uint32_t numports_2; 460 uint32_t numports_3; 461 uint32_t numintrs; 462 uint32_t numslots; 463 uint32_t flags; 464 465 /* Operational Registers */ 466 uint32_t usbcmd; 467 uint32_t usbsts; 468 uint32_t dnctrl; 469 uint32_t crcr_low; 470 uint32_t crcr_high; 471 uint32_t dcbaap_low; 472 uint32_t dcbaap_high; 473 uint32_t config; 474 475 USBPort uports[MAX(MAXPORTS_2, MAXPORTS_3)]; 476 XHCIPort ports[MAXPORTS]; 477 XHCISlot slots[MAXSLOTS]; 478 uint32_t numports; 479 480 /* Runtime Registers */ 481 int64_t mfindex_start; 482 QEMUTimer *mfwrap_timer; 483 XHCIInterrupter intr[MAXINTRS]; 484 485 XHCIRing cmd_ring; 486 }; 487 488 #define TYPE_XHCI "nec-usb-xhci" 489 490 #define XHCI(obj) \ 491 OBJECT_CHECK(XHCIState, (obj), TYPE_XHCI) 492 493 typedef struct XHCIEvRingSeg { 494 uint32_t addr_low; 495 uint32_t addr_high; 496 uint32_t size; 497 uint32_t rsvd; 498 } XHCIEvRingSeg; 499 500 enum xhci_flags { 501 XHCI_FLAG_USE_MSI = 1, 502 XHCI_FLAG_USE_MSI_X, 503 }; 504 505 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 506 unsigned int epid, unsigned int streamid); 507 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 508 unsigned int epid); 509 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v); 510 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v); 511 512 static const char *TRBType_names[] = { 513 [TRB_RESERVED] = "TRB_RESERVED", 514 [TR_NORMAL] = "TR_NORMAL", 515 [TR_SETUP] = "TR_SETUP", 516 [TR_DATA] = "TR_DATA", 517 [TR_STATUS] = "TR_STATUS", 518 [TR_ISOCH] = "TR_ISOCH", 519 [TR_LINK] = "TR_LINK", 520 [TR_EVDATA] = "TR_EVDATA", 521 [TR_NOOP] = "TR_NOOP", 522 [CR_ENABLE_SLOT] = "CR_ENABLE_SLOT", 523 [CR_DISABLE_SLOT] = "CR_DISABLE_SLOT", 524 [CR_ADDRESS_DEVICE] = "CR_ADDRESS_DEVICE", 525 [CR_CONFIGURE_ENDPOINT] = "CR_CONFIGURE_ENDPOINT", 526 [CR_EVALUATE_CONTEXT] = "CR_EVALUATE_CONTEXT", 527 [CR_RESET_ENDPOINT] = "CR_RESET_ENDPOINT", 528 [CR_STOP_ENDPOINT] = "CR_STOP_ENDPOINT", 529 [CR_SET_TR_DEQUEUE] = "CR_SET_TR_DEQUEUE", 530 [CR_RESET_DEVICE] = "CR_RESET_DEVICE", 531 [CR_FORCE_EVENT] = "CR_FORCE_EVENT", 532 [CR_NEGOTIATE_BW] = "CR_NEGOTIATE_BW", 533 [CR_SET_LATENCY_TOLERANCE] = "CR_SET_LATENCY_TOLERANCE", 534 [CR_GET_PORT_BANDWIDTH] = "CR_GET_PORT_BANDWIDTH", 535 [CR_FORCE_HEADER] = "CR_FORCE_HEADER", 536 [CR_NOOP] = "CR_NOOP", 537 [ER_TRANSFER] = "ER_TRANSFER", 538 [ER_COMMAND_COMPLETE] = "ER_COMMAND_COMPLETE", 539 [ER_PORT_STATUS_CHANGE] = "ER_PORT_STATUS_CHANGE", 540 [ER_BANDWIDTH_REQUEST] = "ER_BANDWIDTH_REQUEST", 541 [ER_DOORBELL] = "ER_DOORBELL", 542 [ER_HOST_CONTROLLER] = "ER_HOST_CONTROLLER", 543 [ER_DEVICE_NOTIFICATION] = "ER_DEVICE_NOTIFICATION", 544 [ER_MFINDEX_WRAP] = "ER_MFINDEX_WRAP", 545 [CR_VENDOR_VIA_CHALLENGE_RESPONSE] = "CR_VENDOR_VIA_CHALLENGE_RESPONSE", 546 [CR_VENDOR_NEC_FIRMWARE_REVISION] = "CR_VENDOR_NEC_FIRMWARE_REVISION", 547 [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE", 548 }; 549 550 static const char *TRBCCode_names[] = { 551 [CC_INVALID] = "CC_INVALID", 552 [CC_SUCCESS] = "CC_SUCCESS", 553 [CC_DATA_BUFFER_ERROR] = "CC_DATA_BUFFER_ERROR", 554 [CC_BABBLE_DETECTED] = "CC_BABBLE_DETECTED", 555 [CC_USB_TRANSACTION_ERROR] = "CC_USB_TRANSACTION_ERROR", 556 [CC_TRB_ERROR] = "CC_TRB_ERROR", 557 [CC_STALL_ERROR] = "CC_STALL_ERROR", 558 [CC_RESOURCE_ERROR] = "CC_RESOURCE_ERROR", 559 [CC_BANDWIDTH_ERROR] = "CC_BANDWIDTH_ERROR", 560 [CC_NO_SLOTS_ERROR] = "CC_NO_SLOTS_ERROR", 561 [CC_INVALID_STREAM_TYPE_ERROR] = "CC_INVALID_STREAM_TYPE_ERROR", 562 [CC_SLOT_NOT_ENABLED_ERROR] = "CC_SLOT_NOT_ENABLED_ERROR", 563 [CC_EP_NOT_ENABLED_ERROR] = "CC_EP_NOT_ENABLED_ERROR", 564 [CC_SHORT_PACKET] = "CC_SHORT_PACKET", 565 [CC_RING_UNDERRUN] = "CC_RING_UNDERRUN", 566 [CC_RING_OVERRUN] = "CC_RING_OVERRUN", 567 [CC_VF_ER_FULL] = "CC_VF_ER_FULL", 568 [CC_PARAMETER_ERROR] = "CC_PARAMETER_ERROR", 569 [CC_BANDWIDTH_OVERRUN] = "CC_BANDWIDTH_OVERRUN", 570 [CC_CONTEXT_STATE_ERROR] = "CC_CONTEXT_STATE_ERROR", 571 [CC_NO_PING_RESPONSE_ERROR] = "CC_NO_PING_RESPONSE_ERROR", 572 [CC_EVENT_RING_FULL_ERROR] = "CC_EVENT_RING_FULL_ERROR", 573 [CC_INCOMPATIBLE_DEVICE_ERROR] = "CC_INCOMPATIBLE_DEVICE_ERROR", 574 [CC_MISSED_SERVICE_ERROR] = "CC_MISSED_SERVICE_ERROR", 575 [CC_COMMAND_RING_STOPPED] = "CC_COMMAND_RING_STOPPED", 576 [CC_COMMAND_ABORTED] = "CC_COMMAND_ABORTED", 577 [CC_STOPPED] = "CC_STOPPED", 578 [CC_STOPPED_LENGTH_INVALID] = "CC_STOPPED_LENGTH_INVALID", 579 [CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR] 580 = "CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR", 581 [CC_ISOCH_BUFFER_OVERRUN] = "CC_ISOCH_BUFFER_OVERRUN", 582 [CC_EVENT_LOST_ERROR] = "CC_EVENT_LOST_ERROR", 583 [CC_UNDEFINED_ERROR] = "CC_UNDEFINED_ERROR", 584 [CC_INVALID_STREAM_ID_ERROR] = "CC_INVALID_STREAM_ID_ERROR", 585 [CC_SECONDARY_BANDWIDTH_ERROR] = "CC_SECONDARY_BANDWIDTH_ERROR", 586 [CC_SPLIT_TRANSACTION_ERROR] = "CC_SPLIT_TRANSACTION_ERROR", 587 }; 588 589 static const char *ep_state_names[] = { 590 [EP_DISABLED] = "disabled", 591 [EP_RUNNING] = "running", 592 [EP_HALTED] = "halted", 593 [EP_STOPPED] = "stopped", 594 [EP_ERROR] = "error", 595 }; 596 597 static const char *lookup_name(uint32_t index, const char **list, uint32_t llen) 598 { 599 if (index >= llen || list[index] == NULL) { 600 return "???"; 601 } 602 return list[index]; 603 } 604 605 static const char *trb_name(XHCITRB *trb) 606 { 607 return lookup_name(TRB_TYPE(*trb), TRBType_names, 608 ARRAY_SIZE(TRBType_names)); 609 } 610 611 static const char *event_name(XHCIEvent *event) 612 { 613 return lookup_name(event->ccode, TRBCCode_names, 614 ARRAY_SIZE(TRBCCode_names)); 615 } 616 617 static const char *ep_state_name(uint32_t state) 618 { 619 return lookup_name(state, ep_state_names, 620 ARRAY_SIZE(ep_state_names)); 621 } 622 623 static uint64_t xhci_mfindex_get(XHCIState *xhci) 624 { 625 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 626 return (now - xhci->mfindex_start) / 125000; 627 } 628 629 static void xhci_mfwrap_update(XHCIState *xhci) 630 { 631 const uint32_t bits = USBCMD_RS | USBCMD_EWE; 632 uint32_t mfindex, left; 633 int64_t now; 634 635 if ((xhci->usbcmd & bits) == bits) { 636 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 637 mfindex = ((now - xhci->mfindex_start) / 125000) & 0x3fff; 638 left = 0x4000 - mfindex; 639 timer_mod(xhci->mfwrap_timer, now + left * 125000); 640 } else { 641 timer_del(xhci->mfwrap_timer); 642 } 643 } 644 645 static void xhci_mfwrap_timer(void *opaque) 646 { 647 XHCIState *xhci = opaque; 648 XHCIEvent wrap = { ER_MFINDEX_WRAP, CC_SUCCESS }; 649 650 xhci_event(xhci, &wrap, 0); 651 xhci_mfwrap_update(xhci); 652 } 653 654 static inline dma_addr_t xhci_addr64(uint32_t low, uint32_t high) 655 { 656 if (sizeof(dma_addr_t) == 4) { 657 return low; 658 } else { 659 return low | (((dma_addr_t)high << 16) << 16); 660 } 661 } 662 663 static inline dma_addr_t xhci_mask64(uint64_t addr) 664 { 665 if (sizeof(dma_addr_t) == 4) { 666 return addr & 0xffffffff; 667 } else { 668 return addr; 669 } 670 } 671 672 static inline void xhci_dma_read_u32s(XHCIState *xhci, dma_addr_t addr, 673 uint32_t *buf, size_t len) 674 { 675 int i; 676 677 assert((len % sizeof(uint32_t)) == 0); 678 679 pci_dma_read(PCI_DEVICE(xhci), addr, buf, len); 680 681 for (i = 0; i < (len / sizeof(uint32_t)); i++) { 682 buf[i] = le32_to_cpu(buf[i]); 683 } 684 } 685 686 static inline void xhci_dma_write_u32s(XHCIState *xhci, dma_addr_t addr, 687 uint32_t *buf, size_t len) 688 { 689 int i; 690 uint32_t tmp[len / sizeof(uint32_t)]; 691 692 assert((len % sizeof(uint32_t)) == 0); 693 694 for (i = 0; i < (len / sizeof(uint32_t)); i++) { 695 tmp[i] = cpu_to_le32(buf[i]); 696 } 697 pci_dma_write(PCI_DEVICE(xhci), addr, tmp, len); 698 } 699 700 static XHCIPort *xhci_lookup_port(XHCIState *xhci, struct USBPort *uport) 701 { 702 int index; 703 704 if (!uport->dev) { 705 return NULL; 706 } 707 switch (uport->dev->speed) { 708 case USB_SPEED_LOW: 709 case USB_SPEED_FULL: 710 case USB_SPEED_HIGH: 711 index = uport->index; 712 break; 713 case USB_SPEED_SUPER: 714 index = uport->index + xhci->numports_2; 715 break; 716 default: 717 return NULL; 718 } 719 return &xhci->ports[index]; 720 } 721 722 static void xhci_intx_update(XHCIState *xhci) 723 { 724 PCIDevice *pci_dev = PCI_DEVICE(xhci); 725 int level = 0; 726 727 if (msix_enabled(pci_dev) || 728 msi_enabled(pci_dev)) { 729 return; 730 } 731 732 if (xhci->intr[0].iman & IMAN_IP && 733 xhci->intr[0].iman & IMAN_IE && 734 xhci->usbcmd & USBCMD_INTE) { 735 level = 1; 736 } 737 738 trace_usb_xhci_irq_intx(level); 739 pci_set_irq(pci_dev, level); 740 } 741 742 static void xhci_msix_update(XHCIState *xhci, int v) 743 { 744 PCIDevice *pci_dev = PCI_DEVICE(xhci); 745 bool enabled; 746 747 if (!msix_enabled(pci_dev)) { 748 return; 749 } 750 751 enabled = xhci->intr[v].iman & IMAN_IE; 752 if (enabled == xhci->intr[v].msix_used) { 753 return; 754 } 755 756 if (enabled) { 757 trace_usb_xhci_irq_msix_use(v); 758 msix_vector_use(pci_dev, v); 759 xhci->intr[v].msix_used = true; 760 } else { 761 trace_usb_xhci_irq_msix_unuse(v); 762 msix_vector_unuse(pci_dev, v); 763 xhci->intr[v].msix_used = false; 764 } 765 } 766 767 static void xhci_intr_raise(XHCIState *xhci, int v) 768 { 769 PCIDevice *pci_dev = PCI_DEVICE(xhci); 770 771 xhci->intr[v].erdp_low |= ERDP_EHB; 772 xhci->intr[v].iman |= IMAN_IP; 773 xhci->usbsts |= USBSTS_EINT; 774 775 if (!(xhci->intr[v].iman & IMAN_IE)) { 776 return; 777 } 778 779 if (!(xhci->usbcmd & USBCMD_INTE)) { 780 return; 781 } 782 783 if (msix_enabled(pci_dev)) { 784 trace_usb_xhci_irq_msix(v); 785 msix_notify(pci_dev, v); 786 return; 787 } 788 789 if (msi_enabled(pci_dev)) { 790 trace_usb_xhci_irq_msi(v); 791 msi_notify(pci_dev, v); 792 return; 793 } 794 795 if (v == 0) { 796 trace_usb_xhci_irq_intx(1); 797 pci_irq_assert(pci_dev); 798 } 799 } 800 801 static inline int xhci_running(XHCIState *xhci) 802 { 803 return !(xhci->usbsts & USBSTS_HCH) && !xhci->intr[0].er_full; 804 } 805 806 static void xhci_die(XHCIState *xhci) 807 { 808 xhci->usbsts |= USBSTS_HCE; 809 fprintf(stderr, "xhci: asserted controller error\n"); 810 } 811 812 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v) 813 { 814 PCIDevice *pci_dev = PCI_DEVICE(xhci); 815 XHCIInterrupter *intr = &xhci->intr[v]; 816 XHCITRB ev_trb; 817 dma_addr_t addr; 818 819 ev_trb.parameter = cpu_to_le64(event->ptr); 820 ev_trb.status = cpu_to_le32(event->length | (event->ccode << 24)); 821 ev_trb.control = (event->slotid << 24) | (event->epid << 16) | 822 event->flags | (event->type << TRB_TYPE_SHIFT); 823 if (intr->er_pcs) { 824 ev_trb.control |= TRB_C; 825 } 826 ev_trb.control = cpu_to_le32(ev_trb.control); 827 828 trace_usb_xhci_queue_event(v, intr->er_ep_idx, trb_name(&ev_trb), 829 event_name(event), ev_trb.parameter, 830 ev_trb.status, ev_trb.control); 831 832 addr = intr->er_start + TRB_SIZE*intr->er_ep_idx; 833 pci_dma_write(pci_dev, addr, &ev_trb, TRB_SIZE); 834 835 intr->er_ep_idx++; 836 if (intr->er_ep_idx >= intr->er_size) { 837 intr->er_ep_idx = 0; 838 intr->er_pcs = !intr->er_pcs; 839 } 840 } 841 842 static void xhci_events_update(XHCIState *xhci, int v) 843 { 844 XHCIInterrupter *intr = &xhci->intr[v]; 845 dma_addr_t erdp; 846 unsigned int dp_idx; 847 bool do_irq = 0; 848 849 if (xhci->usbsts & USBSTS_HCH) { 850 return; 851 } 852 853 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 854 if (erdp < intr->er_start || 855 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { 856 fprintf(stderr, "xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); 857 fprintf(stderr, "xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", 858 v, intr->er_start, intr->er_size); 859 xhci_die(xhci); 860 return; 861 } 862 dp_idx = (erdp - intr->er_start) / TRB_SIZE; 863 assert(dp_idx < intr->er_size); 864 865 /* NEC didn't read section 4.9.4 of the spec (v1.0 p139 top Note) and thus 866 * deadlocks when the ER is full. Hack it by holding off events until 867 * the driver decides to free at least half of the ring */ 868 if (intr->er_full) { 869 int er_free = dp_idx - intr->er_ep_idx; 870 if (er_free <= 0) { 871 er_free += intr->er_size; 872 } 873 if (er_free < (intr->er_size/2)) { 874 DPRINTF("xhci_events_update(): event ring still " 875 "more than half full (hack)\n"); 876 return; 877 } 878 } 879 880 while (intr->ev_buffer_put != intr->ev_buffer_get) { 881 assert(intr->er_full); 882 if (((intr->er_ep_idx+1) % intr->er_size) == dp_idx) { 883 DPRINTF("xhci_events_update(): event ring full again\n"); 884 #ifndef ER_FULL_HACK 885 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; 886 xhci_write_event(xhci, &full, v); 887 #endif 888 do_irq = 1; 889 break; 890 } 891 XHCIEvent *event = &intr->ev_buffer[intr->ev_buffer_get]; 892 xhci_write_event(xhci, event, v); 893 intr->ev_buffer_get++; 894 do_irq = 1; 895 if (intr->ev_buffer_get == EV_QUEUE) { 896 intr->ev_buffer_get = 0; 897 } 898 } 899 900 if (do_irq) { 901 xhci_intr_raise(xhci, v); 902 } 903 904 if (intr->er_full && intr->ev_buffer_put == intr->ev_buffer_get) { 905 DPRINTF("xhci_events_update(): event ring no longer full\n"); 906 intr->er_full = 0; 907 } 908 } 909 910 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v) 911 { 912 XHCIInterrupter *intr; 913 dma_addr_t erdp; 914 unsigned int dp_idx; 915 916 if (v >= xhci->numintrs) { 917 DPRINTF("intr nr out of range (%d >= %d)\n", v, xhci->numintrs); 918 return; 919 } 920 intr = &xhci->intr[v]; 921 922 if (intr->er_full) { 923 DPRINTF("xhci_event(): ER full, queueing\n"); 924 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { 925 fprintf(stderr, "xhci: event queue full, dropping event!\n"); 926 return; 927 } 928 intr->ev_buffer[intr->ev_buffer_put++] = *event; 929 if (intr->ev_buffer_put == EV_QUEUE) { 930 intr->ev_buffer_put = 0; 931 } 932 return; 933 } 934 935 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 936 if (erdp < intr->er_start || 937 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { 938 fprintf(stderr, "xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); 939 fprintf(stderr, "xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", 940 v, intr->er_start, intr->er_size); 941 xhci_die(xhci); 942 return; 943 } 944 945 dp_idx = (erdp - intr->er_start) / TRB_SIZE; 946 assert(dp_idx < intr->er_size); 947 948 if ((intr->er_ep_idx+1) % intr->er_size == dp_idx) { 949 DPRINTF("xhci_event(): ER full, queueing\n"); 950 #ifndef ER_FULL_HACK 951 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; 952 xhci_write_event(xhci, &full); 953 #endif 954 intr->er_full = 1; 955 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { 956 fprintf(stderr, "xhci: event queue full, dropping event!\n"); 957 return; 958 } 959 intr->ev_buffer[intr->ev_buffer_put++] = *event; 960 if (intr->ev_buffer_put == EV_QUEUE) { 961 intr->ev_buffer_put = 0; 962 } 963 } else { 964 xhci_write_event(xhci, event, v); 965 } 966 967 xhci_intr_raise(xhci, v); 968 } 969 970 static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring, 971 dma_addr_t base) 972 { 973 ring->dequeue = base; 974 ring->ccs = 1; 975 } 976 977 static TRBType xhci_ring_fetch(XHCIState *xhci, XHCIRing *ring, XHCITRB *trb, 978 dma_addr_t *addr) 979 { 980 PCIDevice *pci_dev = PCI_DEVICE(xhci); 981 982 while (1) { 983 TRBType type; 984 pci_dma_read(pci_dev, ring->dequeue, trb, TRB_SIZE); 985 trb->addr = ring->dequeue; 986 trb->ccs = ring->ccs; 987 le64_to_cpus(&trb->parameter); 988 le32_to_cpus(&trb->status); 989 le32_to_cpus(&trb->control); 990 991 trace_usb_xhci_fetch_trb(ring->dequeue, trb_name(trb), 992 trb->parameter, trb->status, trb->control); 993 994 if ((trb->control & TRB_C) != ring->ccs) { 995 return 0; 996 } 997 998 type = TRB_TYPE(*trb); 999 1000 if (type != TR_LINK) { 1001 if (addr) { 1002 *addr = ring->dequeue; 1003 } 1004 ring->dequeue += TRB_SIZE; 1005 return type; 1006 } else { 1007 ring->dequeue = xhci_mask64(trb->parameter); 1008 if (trb->control & TRB_LK_TC) { 1009 ring->ccs = !ring->ccs; 1010 } 1011 } 1012 } 1013 } 1014 1015 static int xhci_ring_chain_length(XHCIState *xhci, const XHCIRing *ring) 1016 { 1017 PCIDevice *pci_dev = PCI_DEVICE(xhci); 1018 XHCITRB trb; 1019 int length = 0; 1020 dma_addr_t dequeue = ring->dequeue; 1021 bool ccs = ring->ccs; 1022 /* hack to bundle together the two/three TDs that make a setup transfer */ 1023 bool control_td_set = 0; 1024 1025 while (1) { 1026 TRBType type; 1027 pci_dma_read(pci_dev, dequeue, &trb, TRB_SIZE); 1028 le64_to_cpus(&trb.parameter); 1029 le32_to_cpus(&trb.status); 1030 le32_to_cpus(&trb.control); 1031 1032 if ((trb.control & TRB_C) != ccs) { 1033 return -length; 1034 } 1035 1036 type = TRB_TYPE(trb); 1037 1038 if (type == TR_LINK) { 1039 dequeue = xhci_mask64(trb.parameter); 1040 if (trb.control & TRB_LK_TC) { 1041 ccs = !ccs; 1042 } 1043 continue; 1044 } 1045 1046 length += 1; 1047 dequeue += TRB_SIZE; 1048 1049 if (type == TR_SETUP) { 1050 control_td_set = 1; 1051 } else if (type == TR_STATUS) { 1052 control_td_set = 0; 1053 } 1054 1055 if (!control_td_set && !(trb.control & TRB_TR_CH)) { 1056 return length; 1057 } 1058 } 1059 } 1060 1061 static void xhci_er_reset(XHCIState *xhci, int v) 1062 { 1063 XHCIInterrupter *intr = &xhci->intr[v]; 1064 XHCIEvRingSeg seg; 1065 1066 if (intr->erstsz == 0) { 1067 /* disabled */ 1068 intr->er_start = 0; 1069 intr->er_size = 0; 1070 return; 1071 } 1072 /* cache the (sole) event ring segment location */ 1073 if (intr->erstsz != 1) { 1074 fprintf(stderr, "xhci: invalid value for ERSTSZ: %d\n", intr->erstsz); 1075 xhci_die(xhci); 1076 return; 1077 } 1078 dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); 1079 pci_dma_read(PCI_DEVICE(xhci), erstba, &seg, sizeof(seg)); 1080 le32_to_cpus(&seg.addr_low); 1081 le32_to_cpus(&seg.addr_high); 1082 le32_to_cpus(&seg.size); 1083 if (seg.size < 16 || seg.size > 4096) { 1084 fprintf(stderr, "xhci: invalid value for segment size: %d\n", seg.size); 1085 xhci_die(xhci); 1086 return; 1087 } 1088 intr->er_start = xhci_addr64(seg.addr_low, seg.addr_high); 1089 intr->er_size = seg.size; 1090 1091 intr->er_ep_idx = 0; 1092 intr->er_pcs = 1; 1093 intr->er_full = 0; 1094 1095 DPRINTF("xhci: event ring[%d]:" DMA_ADDR_FMT " [%d]\n", 1096 v, intr->er_start, intr->er_size); 1097 } 1098 1099 static void xhci_run(XHCIState *xhci) 1100 { 1101 trace_usb_xhci_run(); 1102 xhci->usbsts &= ~USBSTS_HCH; 1103 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 1104 } 1105 1106 static void xhci_stop(XHCIState *xhci) 1107 { 1108 trace_usb_xhci_stop(); 1109 xhci->usbsts |= USBSTS_HCH; 1110 xhci->crcr_low &= ~CRCR_CRR; 1111 } 1112 1113 static XHCIStreamContext *xhci_alloc_stream_contexts(unsigned count, 1114 dma_addr_t base) 1115 { 1116 XHCIStreamContext *stctx; 1117 unsigned int i; 1118 1119 stctx = g_new0(XHCIStreamContext, count); 1120 for (i = 0; i < count; i++) { 1121 stctx[i].pctx = base + i * 16; 1122 stctx[i].sct = -1; 1123 } 1124 return stctx; 1125 } 1126 1127 static void xhci_reset_streams(XHCIEPContext *epctx) 1128 { 1129 unsigned int i; 1130 1131 for (i = 0; i < epctx->nr_pstreams; i++) { 1132 epctx->pstreams[i].sct = -1; 1133 g_free(epctx->pstreams[i].sstreams); 1134 } 1135 } 1136 1137 static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) 1138 { 1139 assert(epctx->pstreams == NULL); 1140 epctx->nr_pstreams = 2 << epctx->max_pstreams; 1141 epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); 1142 } 1143 1144 static void xhci_free_streams(XHCIEPContext *epctx) 1145 { 1146 int i; 1147 1148 assert(epctx->pstreams != NULL); 1149 1150 if (!epctx->lsa) { 1151 for (i = 0; i < epctx->nr_pstreams; i++) { 1152 g_free(epctx->pstreams[i].sstreams); 1153 } 1154 } 1155 g_free(epctx->pstreams); 1156 epctx->pstreams = NULL; 1157 epctx->nr_pstreams = 0; 1158 } 1159 1160 static XHCIStreamContext *xhci_find_stream(XHCIEPContext *epctx, 1161 unsigned int streamid, 1162 uint32_t *cc_error) 1163 { 1164 XHCIStreamContext *sctx; 1165 dma_addr_t base; 1166 uint32_t ctx[2], sct; 1167 1168 assert(streamid != 0); 1169 if (epctx->lsa) { 1170 if (streamid >= epctx->nr_pstreams) { 1171 *cc_error = CC_INVALID_STREAM_ID_ERROR; 1172 return NULL; 1173 } 1174 sctx = epctx->pstreams + streamid; 1175 } else { 1176 FIXME("secondary streams not implemented yet"); 1177 } 1178 1179 if (sctx->sct == -1) { 1180 xhci_dma_read_u32s(epctx->xhci, sctx->pctx, ctx, sizeof(ctx)); 1181 sct = (ctx[0] >> 1) & 0x07; 1182 if (epctx->lsa && sct != 1) { 1183 *cc_error = CC_INVALID_STREAM_TYPE_ERROR; 1184 return NULL; 1185 } 1186 sctx->sct = sct; 1187 base = xhci_addr64(ctx[0] & ~0xf, ctx[1]); 1188 xhci_ring_init(epctx->xhci, &sctx->ring, base); 1189 } 1190 return sctx; 1191 } 1192 1193 static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, 1194 XHCIStreamContext *sctx, uint32_t state) 1195 { 1196 uint32_t ctx[5]; 1197 uint32_t ctx2[2]; 1198 1199 xhci_dma_read_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1200 ctx[0] &= ~EP_STATE_MASK; 1201 ctx[0] |= state; 1202 1203 /* update ring dequeue ptr */ 1204 if (epctx->nr_pstreams) { 1205 if (sctx != NULL) { 1206 xhci_dma_read_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1207 ctx2[0] &= 0xe; 1208 ctx2[0] |= sctx->ring.dequeue | sctx->ring.ccs; 1209 ctx2[1] = (sctx->ring.dequeue >> 16) >> 16; 1210 xhci_dma_write_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1211 } 1212 } else { 1213 ctx[2] = epctx->ring.dequeue | epctx->ring.ccs; 1214 ctx[3] = (epctx->ring.dequeue >> 16) >> 16; 1215 DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", 1216 epctx->pctx, state, ctx[3], ctx[2]); 1217 } 1218 1219 xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1220 if (epctx->state != state) { 1221 trace_usb_xhci_ep_state(epctx->slotid, epctx->epid, 1222 ep_state_name(epctx->state), 1223 ep_state_name(state)); 1224 } 1225 epctx->state = state; 1226 } 1227 1228 static void xhci_ep_kick_timer(void *opaque) 1229 { 1230 XHCIEPContext *epctx = opaque; 1231 xhci_kick_ep(epctx->xhci, epctx->slotid, epctx->epid, 0); 1232 } 1233 1234 static XHCIEPContext *xhci_alloc_epctx(XHCIState *xhci, 1235 unsigned int slotid, 1236 unsigned int epid) 1237 { 1238 XHCIEPContext *epctx; 1239 int i; 1240 1241 epctx = g_new0(XHCIEPContext, 1); 1242 epctx->xhci = xhci; 1243 epctx->slotid = slotid; 1244 epctx->epid = epid; 1245 1246 for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) { 1247 usb_packet_init(&epctx->transfers[i].packet); 1248 } 1249 epctx->kick_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_ep_kick_timer, epctx); 1250 1251 return epctx; 1252 } 1253 1254 static void xhci_init_epctx(XHCIEPContext *epctx, 1255 dma_addr_t pctx, uint32_t *ctx) 1256 { 1257 dma_addr_t dequeue; 1258 1259 dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]); 1260 1261 epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK; 1262 DPRINTF("xhci: endpoint %d.%d type is %d\n", epid/2, epid%2, epctx->type); 1263 epctx->pctx = pctx; 1264 epctx->max_psize = ctx[1]>>16; 1265 epctx->max_psize *= 1+((ctx[1]>>8)&0xff); 1266 epctx->max_pstreams = (ctx[0] >> 10) & 0xf; 1267 epctx->lsa = (ctx[0] >> 15) & 1; 1268 DPRINTF("xhci: endpoint %d.%d max transaction (burst) size is %d\n", 1269 epid/2, epid%2, epctx->max_psize); 1270 if (epctx->max_pstreams) { 1271 xhci_alloc_streams(epctx, dequeue); 1272 } else { 1273 xhci_ring_init(epctx->xhci, &epctx->ring, dequeue); 1274 epctx->ring.ccs = ctx[2] & 1; 1275 } 1276 1277 epctx->interval = 1 << ((ctx[0] >> 16) & 0xff); 1278 } 1279 1280 static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, 1281 unsigned int epid, dma_addr_t pctx, 1282 uint32_t *ctx) 1283 { 1284 XHCISlot *slot; 1285 XHCIEPContext *epctx; 1286 1287 trace_usb_xhci_ep_enable(slotid, epid); 1288 assert(slotid >= 1 && slotid <= xhci->numslots); 1289 assert(epid >= 1 && epid <= 31); 1290 1291 slot = &xhci->slots[slotid-1]; 1292 if (slot->eps[epid-1]) { 1293 xhci_disable_ep(xhci, slotid, epid); 1294 } 1295 1296 epctx = xhci_alloc_epctx(xhci, slotid, epid); 1297 slot->eps[epid-1] = epctx; 1298 xhci_init_epctx(epctx, pctx, ctx); 1299 1300 epctx->mfindex_last = 0; 1301 1302 epctx->state = EP_RUNNING; 1303 ctx[0] &= ~EP_STATE_MASK; 1304 ctx[0] |= EP_RUNNING; 1305 1306 return CC_SUCCESS; 1307 } 1308 1309 static int xhci_ep_nuke_one_xfer(XHCITransfer *t) 1310 { 1311 int killed = 0; 1312 1313 if (t->running_async) { 1314 usb_cancel_packet(&t->packet); 1315 t->running_async = 0; 1316 t->cancelled = 1; 1317 DPRINTF("xhci: cancelling transfer, waiting for it to complete\n"); 1318 killed = 1; 1319 } 1320 if (t->running_retry) { 1321 XHCIEPContext *epctx = t->xhci->slots[t->slotid-1].eps[t->epid-1]; 1322 if (epctx) { 1323 epctx->retry = NULL; 1324 timer_del(epctx->kick_timer); 1325 } 1326 t->running_retry = 0; 1327 } 1328 if (t->trbs) { 1329 g_free(t->trbs); 1330 } 1331 1332 t->trbs = NULL; 1333 t->trb_count = t->trb_alloced = 0; 1334 1335 return killed; 1336 } 1337 1338 static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid, 1339 unsigned int epid) 1340 { 1341 XHCISlot *slot; 1342 XHCIEPContext *epctx; 1343 int i, xferi, killed = 0; 1344 USBEndpoint *ep = NULL; 1345 assert(slotid >= 1 && slotid <= xhci->numslots); 1346 assert(epid >= 1 && epid <= 31); 1347 1348 DPRINTF("xhci_ep_nuke_xfers(%d, %d)\n", slotid, epid); 1349 1350 slot = &xhci->slots[slotid-1]; 1351 1352 if (!slot->eps[epid-1]) { 1353 return 0; 1354 } 1355 1356 epctx = slot->eps[epid-1]; 1357 1358 xferi = epctx->next_xfer; 1359 for (i = 0; i < TD_QUEUE; i++) { 1360 if (epctx->transfers[xferi].packet.ep) { 1361 ep = epctx->transfers[xferi].packet.ep; 1362 } 1363 killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi]); 1364 epctx->transfers[xferi].packet.ep = NULL; 1365 xferi = (xferi + 1) % TD_QUEUE; 1366 } 1367 if (ep) { 1368 usb_device_ep_stopped(ep->dev, ep); 1369 } 1370 return killed; 1371 } 1372 1373 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 1374 unsigned int epid) 1375 { 1376 XHCISlot *slot; 1377 XHCIEPContext *epctx; 1378 1379 trace_usb_xhci_ep_disable(slotid, epid); 1380 assert(slotid >= 1 && slotid <= xhci->numslots); 1381 assert(epid >= 1 && epid <= 31); 1382 1383 slot = &xhci->slots[slotid-1]; 1384 1385 if (!slot->eps[epid-1]) { 1386 DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid); 1387 return CC_SUCCESS; 1388 } 1389 1390 xhci_ep_nuke_xfers(xhci, slotid, epid); 1391 1392 epctx = slot->eps[epid-1]; 1393 1394 if (epctx->nr_pstreams) { 1395 xhci_free_streams(epctx); 1396 } 1397 1398 xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED); 1399 1400 timer_free(epctx->kick_timer); 1401 g_free(epctx); 1402 slot->eps[epid-1] = NULL; 1403 1404 return CC_SUCCESS; 1405 } 1406 1407 static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid, 1408 unsigned int epid) 1409 { 1410 XHCISlot *slot; 1411 XHCIEPContext *epctx; 1412 1413 trace_usb_xhci_ep_stop(slotid, epid); 1414 assert(slotid >= 1 && slotid <= xhci->numslots); 1415 1416 if (epid < 1 || epid > 31) { 1417 fprintf(stderr, "xhci: bad ep %d\n", epid); 1418 return CC_TRB_ERROR; 1419 } 1420 1421 slot = &xhci->slots[slotid-1]; 1422 1423 if (!slot->eps[epid-1]) { 1424 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1425 return CC_EP_NOT_ENABLED_ERROR; 1426 } 1427 1428 if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) { 1429 fprintf(stderr, "xhci: FIXME: endpoint stopped w/ xfers running, " 1430 "data might be lost\n"); 1431 } 1432 1433 epctx = slot->eps[epid-1]; 1434 1435 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1436 1437 if (epctx->nr_pstreams) { 1438 xhci_reset_streams(epctx); 1439 } 1440 1441 return CC_SUCCESS; 1442 } 1443 1444 static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid, 1445 unsigned int epid) 1446 { 1447 XHCISlot *slot; 1448 XHCIEPContext *epctx; 1449 1450 trace_usb_xhci_ep_reset(slotid, epid); 1451 assert(slotid >= 1 && slotid <= xhci->numslots); 1452 1453 if (epid < 1 || epid > 31) { 1454 fprintf(stderr, "xhci: bad ep %d\n", epid); 1455 return CC_TRB_ERROR; 1456 } 1457 1458 slot = &xhci->slots[slotid-1]; 1459 1460 if (!slot->eps[epid-1]) { 1461 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1462 return CC_EP_NOT_ENABLED_ERROR; 1463 } 1464 1465 epctx = slot->eps[epid-1]; 1466 1467 if (epctx->state != EP_HALTED) { 1468 fprintf(stderr, "xhci: reset EP while EP %d not halted (%d)\n", 1469 epid, epctx->state); 1470 return CC_CONTEXT_STATE_ERROR; 1471 } 1472 1473 if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) { 1474 fprintf(stderr, "xhci: FIXME: endpoint reset w/ xfers running, " 1475 "data might be lost\n"); 1476 } 1477 1478 uint8_t ep = epid>>1; 1479 1480 if (epid & 1) { 1481 ep |= 0x80; 1482 } 1483 1484 if (!xhci->slots[slotid-1].uport || 1485 !xhci->slots[slotid-1].uport->dev) { 1486 return CC_USB_TRANSACTION_ERROR; 1487 } 1488 1489 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1490 1491 if (epctx->nr_pstreams) { 1492 xhci_reset_streams(epctx); 1493 } 1494 1495 return CC_SUCCESS; 1496 } 1497 1498 static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, 1499 unsigned int epid, unsigned int streamid, 1500 uint64_t pdequeue) 1501 { 1502 XHCISlot *slot; 1503 XHCIEPContext *epctx; 1504 XHCIStreamContext *sctx; 1505 dma_addr_t dequeue; 1506 1507 assert(slotid >= 1 && slotid <= xhci->numslots); 1508 1509 if (epid < 1 || epid > 31) { 1510 fprintf(stderr, "xhci: bad ep %d\n", epid); 1511 return CC_TRB_ERROR; 1512 } 1513 1514 trace_usb_xhci_ep_set_dequeue(slotid, epid, streamid, pdequeue); 1515 dequeue = xhci_mask64(pdequeue); 1516 1517 slot = &xhci->slots[slotid-1]; 1518 1519 if (!slot->eps[epid-1]) { 1520 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1521 return CC_EP_NOT_ENABLED_ERROR; 1522 } 1523 1524 epctx = slot->eps[epid-1]; 1525 1526 if (epctx->state != EP_STOPPED) { 1527 fprintf(stderr, "xhci: set EP dequeue pointer while EP %d not stopped\n", epid); 1528 return CC_CONTEXT_STATE_ERROR; 1529 } 1530 1531 if (epctx->nr_pstreams) { 1532 uint32_t err; 1533 sctx = xhci_find_stream(epctx, streamid, &err); 1534 if (sctx == NULL) { 1535 return err; 1536 } 1537 xhci_ring_init(xhci, &sctx->ring, dequeue & ~0xf); 1538 sctx->ring.ccs = dequeue & 1; 1539 } else { 1540 sctx = NULL; 1541 xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); 1542 epctx->ring.ccs = dequeue & 1; 1543 } 1544 1545 xhci_set_ep_state(xhci, epctx, sctx, EP_STOPPED); 1546 1547 return CC_SUCCESS; 1548 } 1549 1550 static int xhci_xfer_create_sgl(XHCITransfer *xfer, int in_xfer) 1551 { 1552 XHCIState *xhci = xfer->xhci; 1553 int i; 1554 1555 xfer->int_req = false; 1556 pci_dma_sglist_init(&xfer->sgl, PCI_DEVICE(xhci), xfer->trb_count); 1557 for (i = 0; i < xfer->trb_count; i++) { 1558 XHCITRB *trb = &xfer->trbs[i]; 1559 dma_addr_t addr; 1560 unsigned int chunk = 0; 1561 1562 if (trb->control & TRB_TR_IOC) { 1563 xfer->int_req = true; 1564 } 1565 1566 switch (TRB_TYPE(*trb)) { 1567 case TR_DATA: 1568 if ((!(trb->control & TRB_TR_DIR)) != (!in_xfer)) { 1569 fprintf(stderr, "xhci: data direction mismatch for TR_DATA\n"); 1570 goto err; 1571 } 1572 /* fallthrough */ 1573 case TR_NORMAL: 1574 case TR_ISOCH: 1575 addr = xhci_mask64(trb->parameter); 1576 chunk = trb->status & 0x1ffff; 1577 if (trb->control & TRB_TR_IDT) { 1578 if (chunk > 8 || in_xfer) { 1579 fprintf(stderr, "xhci: invalid immediate data TRB\n"); 1580 goto err; 1581 } 1582 qemu_sglist_add(&xfer->sgl, trb->addr, chunk); 1583 } else { 1584 qemu_sglist_add(&xfer->sgl, addr, chunk); 1585 } 1586 break; 1587 } 1588 } 1589 1590 return 0; 1591 1592 err: 1593 qemu_sglist_destroy(&xfer->sgl); 1594 xhci_die(xhci); 1595 return -1; 1596 } 1597 1598 static void xhci_xfer_unmap(XHCITransfer *xfer) 1599 { 1600 usb_packet_unmap(&xfer->packet, &xfer->sgl); 1601 qemu_sglist_destroy(&xfer->sgl); 1602 } 1603 1604 static void xhci_xfer_report(XHCITransfer *xfer) 1605 { 1606 uint32_t edtla = 0; 1607 unsigned int left; 1608 bool reported = 0; 1609 bool shortpkt = 0; 1610 XHCIEvent event = {ER_TRANSFER, CC_SUCCESS}; 1611 XHCIState *xhci = xfer->xhci; 1612 int i; 1613 1614 left = xfer->packet.actual_length; 1615 1616 for (i = 0; i < xfer->trb_count; i++) { 1617 XHCITRB *trb = &xfer->trbs[i]; 1618 unsigned int chunk = 0; 1619 1620 switch (TRB_TYPE(*trb)) { 1621 case TR_DATA: 1622 case TR_NORMAL: 1623 case TR_ISOCH: 1624 chunk = trb->status & 0x1ffff; 1625 if (chunk > left) { 1626 chunk = left; 1627 if (xfer->status == CC_SUCCESS) { 1628 shortpkt = 1; 1629 } 1630 } 1631 left -= chunk; 1632 edtla += chunk; 1633 break; 1634 case TR_STATUS: 1635 reported = 0; 1636 shortpkt = 0; 1637 break; 1638 } 1639 1640 if (!reported && ((trb->control & TRB_TR_IOC) || 1641 (shortpkt && (trb->control & TRB_TR_ISP)) || 1642 (xfer->status != CC_SUCCESS && left == 0))) { 1643 event.slotid = xfer->slotid; 1644 event.epid = xfer->epid; 1645 event.length = (trb->status & 0x1ffff) - chunk; 1646 event.flags = 0; 1647 event.ptr = trb->addr; 1648 if (xfer->status == CC_SUCCESS) { 1649 event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS; 1650 } else { 1651 event.ccode = xfer->status; 1652 } 1653 if (TRB_TYPE(*trb) == TR_EVDATA) { 1654 event.ptr = trb->parameter; 1655 event.flags |= TRB_EV_ED; 1656 event.length = edtla & 0xffffff; 1657 DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length); 1658 edtla = 0; 1659 } 1660 xhci_event(xhci, &event, TRB_INTR(*trb)); 1661 reported = 1; 1662 if (xfer->status != CC_SUCCESS) { 1663 return; 1664 } 1665 } 1666 } 1667 } 1668 1669 static void xhci_stall_ep(XHCITransfer *xfer) 1670 { 1671 XHCIState *xhci = xfer->xhci; 1672 XHCISlot *slot = &xhci->slots[xfer->slotid-1]; 1673 XHCIEPContext *epctx = slot->eps[xfer->epid-1]; 1674 uint32_t err; 1675 XHCIStreamContext *sctx; 1676 1677 if (epctx->nr_pstreams) { 1678 sctx = xhci_find_stream(epctx, xfer->streamid, &err); 1679 if (sctx == NULL) { 1680 return; 1681 } 1682 sctx->ring.dequeue = xfer->trbs[0].addr; 1683 sctx->ring.ccs = xfer->trbs[0].ccs; 1684 xhci_set_ep_state(xhci, epctx, sctx, EP_HALTED); 1685 } else { 1686 epctx->ring.dequeue = xfer->trbs[0].addr; 1687 epctx->ring.ccs = xfer->trbs[0].ccs; 1688 xhci_set_ep_state(xhci, epctx, NULL, EP_HALTED); 1689 } 1690 } 1691 1692 static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, 1693 XHCIEPContext *epctx); 1694 1695 static int xhci_setup_packet(XHCITransfer *xfer) 1696 { 1697 XHCIState *xhci = xfer->xhci; 1698 USBDevice *dev; 1699 USBEndpoint *ep; 1700 int dir; 1701 1702 dir = xfer->in_xfer ? USB_TOKEN_IN : USB_TOKEN_OUT; 1703 1704 if (xfer->packet.ep) { 1705 ep = xfer->packet.ep; 1706 dev = ep->dev; 1707 } else { 1708 if (!xhci->slots[xfer->slotid-1].uport) { 1709 fprintf(stderr, "xhci: slot %d has no device\n", 1710 xfer->slotid); 1711 return -1; 1712 } 1713 dev = xhci->slots[xfer->slotid-1].uport->dev; 1714 ep = usb_ep_get(dev, dir, xfer->epid >> 1); 1715 } 1716 1717 xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */ 1718 usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid, 1719 xfer->trbs[0].addr, false, xfer->int_req); 1720 usb_packet_map(&xfer->packet, &xfer->sgl); 1721 DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", 1722 xfer->packet.pid, dev->addr, ep->nr); 1723 return 0; 1724 } 1725 1726 static int xhci_complete_packet(XHCITransfer *xfer) 1727 { 1728 if (xfer->packet.status == USB_RET_ASYNC) { 1729 trace_usb_xhci_xfer_async(xfer); 1730 xfer->running_async = 1; 1731 xfer->running_retry = 0; 1732 xfer->complete = 0; 1733 xfer->cancelled = 0; 1734 return 0; 1735 } else if (xfer->packet.status == USB_RET_NAK) { 1736 trace_usb_xhci_xfer_nak(xfer); 1737 xfer->running_async = 0; 1738 xfer->running_retry = 1; 1739 xfer->complete = 0; 1740 xfer->cancelled = 0; 1741 return 0; 1742 } else { 1743 xfer->running_async = 0; 1744 xfer->running_retry = 0; 1745 xfer->complete = 1; 1746 xhci_xfer_unmap(xfer); 1747 } 1748 1749 if (xfer->packet.status == USB_RET_SUCCESS) { 1750 trace_usb_xhci_xfer_success(xfer, xfer->packet.actual_length); 1751 xfer->status = CC_SUCCESS; 1752 xhci_xfer_report(xfer); 1753 return 0; 1754 } 1755 1756 /* error */ 1757 trace_usb_xhci_xfer_error(xfer, xfer->packet.status); 1758 switch (xfer->packet.status) { 1759 case USB_RET_NODEV: 1760 case USB_RET_IOERROR: 1761 xfer->status = CC_USB_TRANSACTION_ERROR; 1762 xhci_xfer_report(xfer); 1763 xhci_stall_ep(xfer); 1764 break; 1765 case USB_RET_STALL: 1766 xfer->status = CC_STALL_ERROR; 1767 xhci_xfer_report(xfer); 1768 xhci_stall_ep(xfer); 1769 break; 1770 case USB_RET_BABBLE: 1771 xfer->status = CC_BABBLE_DETECTED; 1772 xhci_xfer_report(xfer); 1773 xhci_stall_ep(xfer); 1774 break; 1775 default: 1776 fprintf(stderr, "%s: FIXME: status = %d\n", __func__, 1777 xfer->packet.status); 1778 FIXME("unhandled USB_RET_*"); 1779 } 1780 return 0; 1781 } 1782 1783 static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) 1784 { 1785 XHCITRB *trb_setup, *trb_status; 1786 uint8_t bmRequestType; 1787 1788 trb_setup = &xfer->trbs[0]; 1789 trb_status = &xfer->trbs[xfer->trb_count-1]; 1790 1791 trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); 1792 1793 /* at most one Event Data TRB allowed after STATUS */ 1794 if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) { 1795 trb_status--; 1796 } 1797 1798 /* do some sanity checks */ 1799 if (TRB_TYPE(*trb_setup) != TR_SETUP) { 1800 fprintf(stderr, "xhci: ep0 first TD not SETUP: %d\n", 1801 TRB_TYPE(*trb_setup)); 1802 return -1; 1803 } 1804 if (TRB_TYPE(*trb_status) != TR_STATUS) { 1805 fprintf(stderr, "xhci: ep0 last TD not STATUS: %d\n", 1806 TRB_TYPE(*trb_status)); 1807 return -1; 1808 } 1809 if (!(trb_setup->control & TRB_TR_IDT)) { 1810 fprintf(stderr, "xhci: Setup TRB doesn't have IDT set\n"); 1811 return -1; 1812 } 1813 if ((trb_setup->status & 0x1ffff) != 8) { 1814 fprintf(stderr, "xhci: Setup TRB has bad length (%d)\n", 1815 (trb_setup->status & 0x1ffff)); 1816 return -1; 1817 } 1818 1819 bmRequestType = trb_setup->parameter; 1820 1821 xfer->in_xfer = bmRequestType & USB_DIR_IN; 1822 xfer->iso_xfer = false; 1823 xfer->timed_xfer = false; 1824 1825 if (xhci_setup_packet(xfer) < 0) { 1826 return -1; 1827 } 1828 xfer->packet.parameter = trb_setup->parameter; 1829 1830 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1831 1832 xhci_complete_packet(xfer); 1833 if (!xfer->running_async && !xfer->running_retry) { 1834 xhci_kick_ep(xhci, xfer->slotid, xfer->epid, 0); 1835 } 1836 return 0; 1837 } 1838 1839 static void xhci_calc_intr_kick(XHCIState *xhci, XHCITransfer *xfer, 1840 XHCIEPContext *epctx, uint64_t mfindex) 1841 { 1842 uint64_t asap = ((mfindex + epctx->interval - 1) & 1843 ~(epctx->interval-1)); 1844 uint64_t kick = epctx->mfindex_last + epctx->interval; 1845 1846 assert(epctx->interval != 0); 1847 xfer->mfindex_kick = MAX(asap, kick); 1848 } 1849 1850 static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 1851 XHCIEPContext *epctx, uint64_t mfindex) 1852 { 1853 if (xfer->trbs[0].control & TRB_TR_SIA) { 1854 uint64_t asap = ((mfindex + epctx->interval - 1) & 1855 ~(epctx->interval-1)); 1856 if (asap >= epctx->mfindex_last && 1857 asap <= epctx->mfindex_last + epctx->interval * 4) { 1858 xfer->mfindex_kick = epctx->mfindex_last + epctx->interval; 1859 } else { 1860 xfer->mfindex_kick = asap; 1861 } 1862 } else { 1863 xfer->mfindex_kick = (xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT) 1864 & TRB_TR_FRAMEID_MASK; 1865 xfer->mfindex_kick |= mfindex & ~0x3fff; 1866 if (xfer->mfindex_kick < mfindex) { 1867 xfer->mfindex_kick += 0x4000; 1868 } 1869 } 1870 } 1871 1872 static void xhci_check_intr_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 1873 XHCIEPContext *epctx, uint64_t mfindex) 1874 { 1875 if (xfer->mfindex_kick > mfindex) { 1876 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 1877 (xfer->mfindex_kick - mfindex) * 125000); 1878 xfer->running_retry = 1; 1879 } else { 1880 epctx->mfindex_last = xfer->mfindex_kick; 1881 timer_del(epctx->kick_timer); 1882 xfer->running_retry = 0; 1883 } 1884 } 1885 1886 1887 static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 1888 { 1889 uint64_t mfindex; 1890 1891 DPRINTF("xhci_submit(slotid=%d,epid=%d)\n", xfer->slotid, xfer->epid); 1892 1893 xfer->in_xfer = epctx->type>>2; 1894 1895 switch(epctx->type) { 1896 case ET_INTR_OUT: 1897 case ET_INTR_IN: 1898 xfer->pkts = 0; 1899 xfer->iso_xfer = false; 1900 xfer->timed_xfer = true; 1901 mfindex = xhci_mfindex_get(xhci); 1902 xhci_calc_intr_kick(xhci, xfer, epctx, mfindex); 1903 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1904 if (xfer->running_retry) { 1905 return -1; 1906 } 1907 break; 1908 case ET_BULK_OUT: 1909 case ET_BULK_IN: 1910 xfer->pkts = 0; 1911 xfer->iso_xfer = false; 1912 xfer->timed_xfer = false; 1913 break; 1914 case ET_ISO_OUT: 1915 case ET_ISO_IN: 1916 xfer->pkts = 1; 1917 xfer->iso_xfer = true; 1918 xfer->timed_xfer = true; 1919 mfindex = xhci_mfindex_get(xhci); 1920 xhci_calc_iso_kick(xhci, xfer, epctx, mfindex); 1921 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1922 if (xfer->running_retry) { 1923 return -1; 1924 } 1925 break; 1926 default: 1927 fprintf(stderr, "xhci: unknown or unhandled EP " 1928 "(type %d, in %d, ep %02x)\n", 1929 epctx->type, xfer->in_xfer, xfer->epid); 1930 return -1; 1931 } 1932 1933 if (xhci_setup_packet(xfer) < 0) { 1934 return -1; 1935 } 1936 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1937 1938 xhci_complete_packet(xfer); 1939 if (!xfer->running_async && !xfer->running_retry) { 1940 xhci_kick_ep(xhci, xfer->slotid, xfer->epid, xfer->streamid); 1941 } 1942 return 0; 1943 } 1944 1945 static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 1946 { 1947 trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); 1948 return xhci_submit(xhci, xfer, epctx); 1949 } 1950 1951 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 1952 unsigned int epid, unsigned int streamid) 1953 { 1954 XHCIStreamContext *stctx; 1955 XHCIEPContext *epctx; 1956 XHCIRing *ring; 1957 USBEndpoint *ep = NULL; 1958 uint64_t mfindex; 1959 int length; 1960 int i; 1961 1962 trace_usb_xhci_ep_kick(slotid, epid, streamid); 1963 assert(slotid >= 1 && slotid <= xhci->numslots); 1964 assert(epid >= 1 && epid <= 31); 1965 1966 if (!xhci->slots[slotid-1].enabled) { 1967 fprintf(stderr, "xhci: xhci_kick_ep for disabled slot %d\n", slotid); 1968 return; 1969 } 1970 epctx = xhci->slots[slotid-1].eps[epid-1]; 1971 if (!epctx) { 1972 fprintf(stderr, "xhci: xhci_kick_ep for disabled endpoint %d,%d\n", 1973 epid, slotid); 1974 return; 1975 } 1976 1977 if (epctx->retry) { 1978 XHCITransfer *xfer = epctx->retry; 1979 1980 trace_usb_xhci_xfer_retry(xfer); 1981 assert(xfer->running_retry); 1982 if (xfer->timed_xfer) { 1983 /* time to kick the transfer? */ 1984 mfindex = xhci_mfindex_get(xhci); 1985 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1986 if (xfer->running_retry) { 1987 return; 1988 } 1989 xfer->timed_xfer = 0; 1990 xfer->running_retry = 1; 1991 } 1992 if (xfer->iso_xfer) { 1993 /* retry iso transfer */ 1994 if (xhci_setup_packet(xfer) < 0) { 1995 return; 1996 } 1997 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1998 assert(xfer->packet.status != USB_RET_NAK); 1999 xhci_complete_packet(xfer); 2000 } else { 2001 /* retry nak'ed transfer */ 2002 if (xhci_setup_packet(xfer) < 0) { 2003 return; 2004 } 2005 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 2006 if (xfer->packet.status == USB_RET_NAK) { 2007 return; 2008 } 2009 xhci_complete_packet(xfer); 2010 } 2011 assert(!xfer->running_retry); 2012 epctx->retry = NULL; 2013 } 2014 2015 if (epctx->state == EP_HALTED) { 2016 DPRINTF("xhci: ep halted, not running schedule\n"); 2017 return; 2018 } 2019 2020 2021 if (epctx->nr_pstreams) { 2022 uint32_t err; 2023 stctx = xhci_find_stream(epctx, streamid, &err); 2024 if (stctx == NULL) { 2025 return; 2026 } 2027 ring = &stctx->ring; 2028 xhci_set_ep_state(xhci, epctx, stctx, EP_RUNNING); 2029 } else { 2030 ring = &epctx->ring; 2031 streamid = 0; 2032 xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING); 2033 } 2034 assert(ring->dequeue != 0); 2035 2036 while (1) { 2037 XHCITransfer *xfer = &epctx->transfers[epctx->next_xfer]; 2038 if (xfer->running_async || xfer->running_retry) { 2039 break; 2040 } 2041 length = xhci_ring_chain_length(xhci, ring); 2042 if (length < 0) { 2043 break; 2044 } else if (length == 0) { 2045 break; 2046 } 2047 if (xfer->trbs && xfer->trb_alloced < length) { 2048 xfer->trb_count = 0; 2049 xfer->trb_alloced = 0; 2050 g_free(xfer->trbs); 2051 xfer->trbs = NULL; 2052 } 2053 if (!xfer->trbs) { 2054 xfer->trbs = g_malloc(sizeof(XHCITRB) * length); 2055 xfer->trb_alloced = length; 2056 } 2057 xfer->trb_count = length; 2058 2059 for (i = 0; i < length; i++) { 2060 assert(xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL)); 2061 } 2062 xfer->xhci = xhci; 2063 xfer->epid = epid; 2064 xfer->slotid = slotid; 2065 xfer->streamid = streamid; 2066 2067 if (epid == 1) { 2068 if (xhci_fire_ctl_transfer(xhci, xfer) >= 0) { 2069 epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE; 2070 ep = xfer->packet.ep; 2071 } else { 2072 fprintf(stderr, "xhci: error firing CTL transfer\n"); 2073 } 2074 } else { 2075 if (xhci_fire_transfer(xhci, xfer, epctx) >= 0) { 2076 epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE; 2077 ep = xfer->packet.ep; 2078 } else { 2079 if (!xfer->timed_xfer) { 2080 fprintf(stderr, "xhci: error firing data transfer\n"); 2081 } 2082 } 2083 } 2084 2085 if (epctx->state == EP_HALTED) { 2086 break; 2087 } 2088 if (xfer->running_retry) { 2089 DPRINTF("xhci: xfer nacked, stopping schedule\n"); 2090 epctx->retry = xfer; 2091 break; 2092 } 2093 } 2094 if (ep) { 2095 usb_device_flush_ep_queue(ep->dev, ep); 2096 } 2097 } 2098 2099 static TRBCCode xhci_enable_slot(XHCIState *xhci, unsigned int slotid) 2100 { 2101 trace_usb_xhci_slot_enable(slotid); 2102 assert(slotid >= 1 && slotid <= xhci->numslots); 2103 xhci->slots[slotid-1].enabled = 1; 2104 xhci->slots[slotid-1].uport = NULL; 2105 memset(xhci->slots[slotid-1].eps, 0, sizeof(XHCIEPContext*)*31); 2106 2107 return CC_SUCCESS; 2108 } 2109 2110 static TRBCCode xhci_disable_slot(XHCIState *xhci, unsigned int slotid) 2111 { 2112 int i; 2113 2114 trace_usb_xhci_slot_disable(slotid); 2115 assert(slotid >= 1 && slotid <= xhci->numslots); 2116 2117 for (i = 1; i <= 31; i++) { 2118 if (xhci->slots[slotid-1].eps[i-1]) { 2119 xhci_disable_ep(xhci, slotid, i); 2120 } 2121 } 2122 2123 xhci->slots[slotid-1].enabled = 0; 2124 xhci->slots[slotid-1].addressed = 0; 2125 xhci->slots[slotid-1].uport = NULL; 2126 return CC_SUCCESS; 2127 } 2128 2129 static USBPort *xhci_lookup_uport(XHCIState *xhci, uint32_t *slot_ctx) 2130 { 2131 USBPort *uport; 2132 char path[32]; 2133 int i, pos, port; 2134 2135 port = (slot_ctx[1]>>16) & 0xFF; 2136 port = xhci->ports[port-1].uport->index+1; 2137 pos = snprintf(path, sizeof(path), "%d", port); 2138 for (i = 0; i < 5; i++) { 2139 port = (slot_ctx[0] >> 4*i) & 0x0f; 2140 if (!port) { 2141 break; 2142 } 2143 pos += snprintf(path + pos, sizeof(path) - pos, ".%d", port); 2144 } 2145 2146 QTAILQ_FOREACH(uport, &xhci->bus.used, next) { 2147 if (strcmp(uport->path, path) == 0) { 2148 return uport; 2149 } 2150 } 2151 return NULL; 2152 } 2153 2154 static TRBCCode xhci_address_slot(XHCIState *xhci, unsigned int slotid, 2155 uint64_t pictx, bool bsr) 2156 { 2157 XHCISlot *slot; 2158 USBPort *uport; 2159 USBDevice *dev; 2160 dma_addr_t ictx, octx, dcbaap; 2161 uint64_t poctx; 2162 uint32_t ictl_ctx[2]; 2163 uint32_t slot_ctx[4]; 2164 uint32_t ep0_ctx[5]; 2165 int i; 2166 TRBCCode res; 2167 2168 assert(slotid >= 1 && slotid <= xhci->numslots); 2169 2170 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 2171 poctx = ldq_le_pci_dma(PCI_DEVICE(xhci), dcbaap + 8 * slotid); 2172 ictx = xhci_mask64(pictx); 2173 octx = xhci_mask64(poctx); 2174 2175 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2176 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2177 2178 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2179 2180 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] != 0x3) { 2181 fprintf(stderr, "xhci: invalid input context control %08x %08x\n", 2182 ictl_ctx[0], ictl_ctx[1]); 2183 return CC_TRB_ERROR; 2184 } 2185 2186 xhci_dma_read_u32s(xhci, ictx+32, slot_ctx, sizeof(slot_ctx)); 2187 xhci_dma_read_u32s(xhci, ictx+64, ep0_ctx, sizeof(ep0_ctx)); 2188 2189 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2190 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2191 2192 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2193 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2194 2195 uport = xhci_lookup_uport(xhci, slot_ctx); 2196 if (uport == NULL) { 2197 fprintf(stderr, "xhci: port not found\n"); 2198 return CC_TRB_ERROR; 2199 } 2200 trace_usb_xhci_slot_address(slotid, uport->path); 2201 2202 dev = uport->dev; 2203 if (!dev) { 2204 fprintf(stderr, "xhci: port %s not connected\n", uport->path); 2205 return CC_USB_TRANSACTION_ERROR; 2206 } 2207 2208 for (i = 0; i < xhci->numslots; i++) { 2209 if (i == slotid-1) { 2210 continue; 2211 } 2212 if (xhci->slots[i].uport == uport) { 2213 fprintf(stderr, "xhci: port %s already assigned to slot %d\n", 2214 uport->path, i+1); 2215 return CC_TRB_ERROR; 2216 } 2217 } 2218 2219 slot = &xhci->slots[slotid-1]; 2220 slot->uport = uport; 2221 slot->ctx = octx; 2222 2223 if (bsr) { 2224 slot_ctx[3] = SLOT_DEFAULT << SLOT_STATE_SHIFT; 2225 } else { 2226 USBPacket p; 2227 uint8_t buf[1]; 2228 2229 slot_ctx[3] = (SLOT_ADDRESSED << SLOT_STATE_SHIFT) | slotid; 2230 usb_device_reset(dev); 2231 memset(&p, 0, sizeof(p)); 2232 usb_packet_addbuf(&p, buf, sizeof(buf)); 2233 usb_packet_setup(&p, USB_TOKEN_OUT, 2234 usb_ep_get(dev, USB_TOKEN_OUT, 0), 0, 2235 0, false, false); 2236 usb_device_handle_control(dev, &p, 2237 DeviceOutRequest | USB_REQ_SET_ADDRESS, 2238 slotid, 0, 0, NULL); 2239 assert(p.status != USB_RET_ASYNC); 2240 } 2241 2242 res = xhci_enable_ep(xhci, slotid, 1, octx+32, ep0_ctx); 2243 2244 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2245 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2246 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2247 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2248 2249 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2250 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2251 2252 xhci->slots[slotid-1].addressed = 1; 2253 return res; 2254 } 2255 2256 2257 static TRBCCode xhci_configure_slot(XHCIState *xhci, unsigned int slotid, 2258 uint64_t pictx, bool dc) 2259 { 2260 dma_addr_t ictx, octx; 2261 uint32_t ictl_ctx[2]; 2262 uint32_t slot_ctx[4]; 2263 uint32_t islot_ctx[4]; 2264 uint32_t ep_ctx[5]; 2265 int i; 2266 TRBCCode res; 2267 2268 trace_usb_xhci_slot_configure(slotid); 2269 assert(slotid >= 1 && slotid <= xhci->numslots); 2270 2271 ictx = xhci_mask64(pictx); 2272 octx = xhci->slots[slotid-1].ctx; 2273 2274 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2275 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2276 2277 if (dc) { 2278 for (i = 2; i <= 31; i++) { 2279 if (xhci->slots[slotid-1].eps[i-1]) { 2280 xhci_disable_ep(xhci, slotid, i); 2281 } 2282 } 2283 2284 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2285 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2286 slot_ctx[3] |= SLOT_ADDRESSED << SLOT_STATE_SHIFT; 2287 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2288 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2289 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2290 2291 return CC_SUCCESS; 2292 } 2293 2294 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2295 2296 if ((ictl_ctx[0] & 0x3) != 0x0 || (ictl_ctx[1] & 0x3) != 0x1) { 2297 fprintf(stderr, "xhci: invalid input context control %08x %08x\n", 2298 ictl_ctx[0], ictl_ctx[1]); 2299 return CC_TRB_ERROR; 2300 } 2301 2302 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2303 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2304 2305 if (SLOT_STATE(slot_ctx[3]) < SLOT_ADDRESSED) { 2306 fprintf(stderr, "xhci: invalid slot state %08x\n", slot_ctx[3]); 2307 return CC_CONTEXT_STATE_ERROR; 2308 } 2309 2310 for (i = 2; i <= 31; i++) { 2311 if (ictl_ctx[0] & (1<<i)) { 2312 xhci_disable_ep(xhci, slotid, i); 2313 } 2314 if (ictl_ctx[1] & (1<<i)) { 2315 xhci_dma_read_u32s(xhci, ictx+32+(32*i), ep_ctx, sizeof(ep_ctx)); 2316 DPRINTF("xhci: input ep%d.%d context: %08x %08x %08x %08x %08x\n", 2317 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2318 ep_ctx[3], ep_ctx[4]); 2319 xhci_disable_ep(xhci, slotid, i); 2320 res = xhci_enable_ep(xhci, slotid, i, octx+(32*i), ep_ctx); 2321 if (res != CC_SUCCESS) { 2322 return res; 2323 } 2324 DPRINTF("xhci: output ep%d.%d context: %08x %08x %08x %08x %08x\n", 2325 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2326 ep_ctx[3], ep_ctx[4]); 2327 xhci_dma_write_u32s(xhci, octx+(32*i), ep_ctx, sizeof(ep_ctx)); 2328 } 2329 } 2330 2331 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2332 slot_ctx[3] |= SLOT_CONFIGURED << SLOT_STATE_SHIFT; 2333 slot_ctx[0] &= ~(SLOT_CONTEXT_ENTRIES_MASK << SLOT_CONTEXT_ENTRIES_SHIFT); 2334 slot_ctx[0] |= islot_ctx[0] & (SLOT_CONTEXT_ENTRIES_MASK << 2335 SLOT_CONTEXT_ENTRIES_SHIFT); 2336 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2337 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2338 2339 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2340 2341 return CC_SUCCESS; 2342 } 2343 2344 2345 static TRBCCode xhci_evaluate_slot(XHCIState *xhci, unsigned int slotid, 2346 uint64_t pictx) 2347 { 2348 dma_addr_t ictx, octx; 2349 uint32_t ictl_ctx[2]; 2350 uint32_t iep0_ctx[5]; 2351 uint32_t ep0_ctx[5]; 2352 uint32_t islot_ctx[4]; 2353 uint32_t slot_ctx[4]; 2354 2355 trace_usb_xhci_slot_evaluate(slotid); 2356 assert(slotid >= 1 && slotid <= xhci->numslots); 2357 2358 ictx = xhci_mask64(pictx); 2359 octx = xhci->slots[slotid-1].ctx; 2360 2361 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2362 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2363 2364 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2365 2366 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] & ~0x3) { 2367 fprintf(stderr, "xhci: invalid input context control %08x %08x\n", 2368 ictl_ctx[0], ictl_ctx[1]); 2369 return CC_TRB_ERROR; 2370 } 2371 2372 if (ictl_ctx[1] & 0x1) { 2373 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2374 2375 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2376 islot_ctx[0], islot_ctx[1], islot_ctx[2], islot_ctx[3]); 2377 2378 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2379 2380 slot_ctx[1] &= ~0xFFFF; /* max exit latency */ 2381 slot_ctx[1] |= islot_ctx[1] & 0xFFFF; 2382 slot_ctx[2] &= ~0xFF00000; /* interrupter target */ 2383 slot_ctx[2] |= islot_ctx[2] & 0xFF000000; 2384 2385 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2386 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2387 2388 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2389 } 2390 2391 if (ictl_ctx[1] & 0x2) { 2392 xhci_dma_read_u32s(xhci, ictx+64, iep0_ctx, sizeof(iep0_ctx)); 2393 2394 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2395 iep0_ctx[0], iep0_ctx[1], iep0_ctx[2], 2396 iep0_ctx[3], iep0_ctx[4]); 2397 2398 xhci_dma_read_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2399 2400 ep0_ctx[1] &= ~0xFFFF0000; /* max packet size*/ 2401 ep0_ctx[1] |= iep0_ctx[1] & 0xFFFF0000; 2402 2403 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2404 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2405 2406 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2407 } 2408 2409 return CC_SUCCESS; 2410 } 2411 2412 static TRBCCode xhci_reset_slot(XHCIState *xhci, unsigned int slotid) 2413 { 2414 uint32_t slot_ctx[4]; 2415 dma_addr_t octx; 2416 int i; 2417 2418 trace_usb_xhci_slot_reset(slotid); 2419 assert(slotid >= 1 && slotid <= xhci->numslots); 2420 2421 octx = xhci->slots[slotid-1].ctx; 2422 2423 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2424 2425 for (i = 2; i <= 31; i++) { 2426 if (xhci->slots[slotid-1].eps[i-1]) { 2427 xhci_disable_ep(xhci, slotid, i); 2428 } 2429 } 2430 2431 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2432 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2433 slot_ctx[3] |= SLOT_DEFAULT << SLOT_STATE_SHIFT; 2434 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2435 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2436 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2437 2438 return CC_SUCCESS; 2439 } 2440 2441 static unsigned int xhci_get_slot(XHCIState *xhci, XHCIEvent *event, XHCITRB *trb) 2442 { 2443 unsigned int slotid; 2444 slotid = (trb->control >> TRB_CR_SLOTID_SHIFT) & TRB_CR_SLOTID_MASK; 2445 if (slotid < 1 || slotid > xhci->numslots) { 2446 fprintf(stderr, "xhci: bad slot id %d\n", slotid); 2447 event->ccode = CC_TRB_ERROR; 2448 return 0; 2449 } else if (!xhci->slots[slotid-1].enabled) { 2450 fprintf(stderr, "xhci: slot id %d not enabled\n", slotid); 2451 event->ccode = CC_SLOT_NOT_ENABLED_ERROR; 2452 return 0; 2453 } 2454 return slotid; 2455 } 2456 2457 /* cleanup slot state on usb device detach */ 2458 static void xhci_detach_slot(XHCIState *xhci, USBPort *uport) 2459 { 2460 int slot, ep; 2461 2462 for (slot = 0; slot < xhci->numslots; slot++) { 2463 if (xhci->slots[slot].uport == uport) { 2464 break; 2465 } 2466 } 2467 if (slot == xhci->numslots) { 2468 return; 2469 } 2470 2471 for (ep = 0; ep < 31; ep++) { 2472 if (xhci->slots[slot].eps[ep]) { 2473 xhci_ep_nuke_xfers(xhci, slot+1, ep+1); 2474 } 2475 } 2476 xhci->slots[slot].uport = NULL; 2477 } 2478 2479 static TRBCCode xhci_get_port_bandwidth(XHCIState *xhci, uint64_t pctx) 2480 { 2481 dma_addr_t ctx; 2482 uint8_t bw_ctx[xhci->numports+1]; 2483 2484 DPRINTF("xhci_get_port_bandwidth()\n"); 2485 2486 ctx = xhci_mask64(pctx); 2487 2488 DPRINTF("xhci: bandwidth context at "DMA_ADDR_FMT"\n", ctx); 2489 2490 /* TODO: actually implement real values here */ 2491 bw_ctx[0] = 0; 2492 memset(&bw_ctx[1], 80, xhci->numports); /* 80% */ 2493 pci_dma_write(PCI_DEVICE(xhci), ctx, bw_ctx, sizeof(bw_ctx)); 2494 2495 return CC_SUCCESS; 2496 } 2497 2498 static uint32_t rotl(uint32_t v, unsigned count) 2499 { 2500 count &= 31; 2501 return (v << count) | (v >> (32 - count)); 2502 } 2503 2504 2505 static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo) 2506 { 2507 uint32_t val; 2508 val = rotl(lo - 0x49434878, 32 - ((hi>>8) & 0x1F)); 2509 val += rotl(lo + 0x49434878, hi & 0x1F); 2510 val -= rotl(hi ^ 0x49434878, (lo >> 16) & 0x1F); 2511 return ~val; 2512 } 2513 2514 static void xhci_via_challenge(XHCIState *xhci, uint64_t addr) 2515 { 2516 PCIDevice *pci_dev = PCI_DEVICE(xhci); 2517 uint32_t buf[8]; 2518 uint32_t obuf[8]; 2519 dma_addr_t paddr = xhci_mask64(addr); 2520 2521 pci_dma_read(pci_dev, paddr, &buf, 32); 2522 2523 memcpy(obuf, buf, sizeof(obuf)); 2524 2525 if ((buf[0] & 0xff) == 2) { 2526 obuf[0] = 0x49932000 + 0x54dc200 * buf[2] + 0x7429b578 * buf[3]; 2527 obuf[0] |= (buf[2] * buf[3]) & 0xff; 2528 obuf[1] = 0x0132bb37 + 0xe89 * buf[2] + 0xf09 * buf[3]; 2529 obuf[2] = 0x0066c2e9 + 0x2091 * buf[2] + 0x19bd * buf[3]; 2530 obuf[3] = 0xd5281342 + 0x2cc9691 * buf[2] + 0x2367662 * buf[3]; 2531 obuf[4] = 0x0123c75c + 0x1595 * buf[2] + 0x19ec * buf[3]; 2532 obuf[5] = 0x00f695de + 0x26fd * buf[2] + 0x3e9 * buf[3]; 2533 obuf[6] = obuf[2] ^ obuf[3] ^ 0x29472956; 2534 obuf[7] = obuf[2] ^ obuf[3] ^ 0x65866593; 2535 } 2536 2537 pci_dma_write(pci_dev, paddr, &obuf, 32); 2538 } 2539 2540 static void xhci_process_commands(XHCIState *xhci) 2541 { 2542 XHCITRB trb; 2543 TRBType type; 2544 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS}; 2545 dma_addr_t addr; 2546 unsigned int i, slotid = 0; 2547 2548 DPRINTF("xhci_process_commands()\n"); 2549 if (!xhci_running(xhci)) { 2550 DPRINTF("xhci_process_commands() called while xHC stopped or paused\n"); 2551 return; 2552 } 2553 2554 xhci->crcr_low |= CRCR_CRR; 2555 2556 while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) { 2557 event.ptr = addr; 2558 switch (type) { 2559 case CR_ENABLE_SLOT: 2560 for (i = 0; i < xhci->numslots; i++) { 2561 if (!xhci->slots[i].enabled) { 2562 break; 2563 } 2564 } 2565 if (i >= xhci->numslots) { 2566 fprintf(stderr, "xhci: no device slots available\n"); 2567 event.ccode = CC_NO_SLOTS_ERROR; 2568 } else { 2569 slotid = i+1; 2570 event.ccode = xhci_enable_slot(xhci, slotid); 2571 } 2572 break; 2573 case CR_DISABLE_SLOT: 2574 slotid = xhci_get_slot(xhci, &event, &trb); 2575 if (slotid) { 2576 event.ccode = xhci_disable_slot(xhci, slotid); 2577 } 2578 break; 2579 case CR_ADDRESS_DEVICE: 2580 slotid = xhci_get_slot(xhci, &event, &trb); 2581 if (slotid) { 2582 event.ccode = xhci_address_slot(xhci, slotid, trb.parameter, 2583 trb.control & TRB_CR_BSR); 2584 } 2585 break; 2586 case CR_CONFIGURE_ENDPOINT: 2587 slotid = xhci_get_slot(xhci, &event, &trb); 2588 if (slotid) { 2589 event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter, 2590 trb.control & TRB_CR_DC); 2591 } 2592 break; 2593 case CR_EVALUATE_CONTEXT: 2594 slotid = xhci_get_slot(xhci, &event, &trb); 2595 if (slotid) { 2596 event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter); 2597 } 2598 break; 2599 case CR_STOP_ENDPOINT: 2600 slotid = xhci_get_slot(xhci, &event, &trb); 2601 if (slotid) { 2602 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2603 & TRB_CR_EPID_MASK; 2604 event.ccode = xhci_stop_ep(xhci, slotid, epid); 2605 } 2606 break; 2607 case CR_RESET_ENDPOINT: 2608 slotid = xhci_get_slot(xhci, &event, &trb); 2609 if (slotid) { 2610 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2611 & TRB_CR_EPID_MASK; 2612 event.ccode = xhci_reset_ep(xhci, slotid, epid); 2613 } 2614 break; 2615 case CR_SET_TR_DEQUEUE: 2616 slotid = xhci_get_slot(xhci, &event, &trb); 2617 if (slotid) { 2618 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2619 & TRB_CR_EPID_MASK; 2620 unsigned int streamid = (trb.status >> 16) & 0xffff; 2621 event.ccode = xhci_set_ep_dequeue(xhci, slotid, 2622 epid, streamid, 2623 trb.parameter); 2624 } 2625 break; 2626 case CR_RESET_DEVICE: 2627 slotid = xhci_get_slot(xhci, &event, &trb); 2628 if (slotid) { 2629 event.ccode = xhci_reset_slot(xhci, slotid); 2630 } 2631 break; 2632 case CR_GET_PORT_BANDWIDTH: 2633 event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter); 2634 break; 2635 case CR_VENDOR_VIA_CHALLENGE_RESPONSE: 2636 xhci_via_challenge(xhci, trb.parameter); 2637 break; 2638 case CR_VENDOR_NEC_FIRMWARE_REVISION: 2639 event.type = 48; /* NEC reply */ 2640 event.length = 0x3025; 2641 break; 2642 case CR_VENDOR_NEC_CHALLENGE_RESPONSE: 2643 { 2644 uint32_t chi = trb.parameter >> 32; 2645 uint32_t clo = trb.parameter; 2646 uint32_t val = xhci_nec_challenge(chi, clo); 2647 event.length = val & 0xFFFF; 2648 event.epid = val >> 16; 2649 slotid = val >> 24; 2650 event.type = 48; /* NEC reply */ 2651 } 2652 break; 2653 default: 2654 trace_usb_xhci_unimplemented("command", type); 2655 event.ccode = CC_TRB_ERROR; 2656 break; 2657 } 2658 event.slotid = slotid; 2659 xhci_event(xhci, &event, 0); 2660 } 2661 } 2662 2663 static bool xhci_port_have_device(XHCIPort *port) 2664 { 2665 if (!port->uport->dev || !port->uport->dev->attached) { 2666 return false; /* no device present */ 2667 } 2668 if (!((1 << port->uport->dev->speed) & port->speedmask)) { 2669 return false; /* speed mismatch */ 2670 } 2671 return true; 2672 } 2673 2674 static void xhci_port_notify(XHCIPort *port, uint32_t bits) 2675 { 2676 XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS, 2677 port->portnr << 24 }; 2678 2679 if ((port->portsc & bits) == bits) { 2680 return; 2681 } 2682 trace_usb_xhci_port_notify(port->portnr, bits); 2683 port->portsc |= bits; 2684 if (!xhci_running(port->xhci)) { 2685 return; 2686 } 2687 xhci_event(port->xhci, &ev, 0); 2688 } 2689 2690 static void xhci_port_update(XHCIPort *port, int is_detach) 2691 { 2692 uint32_t pls = PLS_RX_DETECT; 2693 2694 port->portsc = PORTSC_PP; 2695 if (!is_detach && xhci_port_have_device(port)) { 2696 port->portsc |= PORTSC_CCS; 2697 switch (port->uport->dev->speed) { 2698 case USB_SPEED_LOW: 2699 port->portsc |= PORTSC_SPEED_LOW; 2700 pls = PLS_POLLING; 2701 break; 2702 case USB_SPEED_FULL: 2703 port->portsc |= PORTSC_SPEED_FULL; 2704 pls = PLS_POLLING; 2705 break; 2706 case USB_SPEED_HIGH: 2707 port->portsc |= PORTSC_SPEED_HIGH; 2708 pls = PLS_POLLING; 2709 break; 2710 case USB_SPEED_SUPER: 2711 port->portsc |= PORTSC_SPEED_SUPER; 2712 port->portsc |= PORTSC_PED; 2713 pls = PLS_U0; 2714 break; 2715 } 2716 } 2717 set_field(&port->portsc, pls, PORTSC_PLS); 2718 trace_usb_xhci_port_link(port->portnr, pls); 2719 xhci_port_notify(port, PORTSC_CSC); 2720 } 2721 2722 static void xhci_port_reset(XHCIPort *port, bool warm_reset) 2723 { 2724 trace_usb_xhci_port_reset(port->portnr); 2725 2726 if (!xhci_port_have_device(port)) { 2727 return; 2728 } 2729 2730 usb_device_reset(port->uport->dev); 2731 2732 switch (port->uport->dev->speed) { 2733 case USB_SPEED_SUPER: 2734 if (warm_reset) { 2735 port->portsc |= PORTSC_WRC; 2736 } 2737 /* fall through */ 2738 case USB_SPEED_LOW: 2739 case USB_SPEED_FULL: 2740 case USB_SPEED_HIGH: 2741 set_field(&port->portsc, PLS_U0, PORTSC_PLS); 2742 trace_usb_xhci_port_link(port->portnr, PLS_U0); 2743 port->portsc |= PORTSC_PED; 2744 break; 2745 } 2746 2747 port->portsc &= ~PORTSC_PR; 2748 xhci_port_notify(port, PORTSC_PRC); 2749 } 2750 2751 static void xhci_reset(DeviceState *dev) 2752 { 2753 XHCIState *xhci = XHCI(dev); 2754 int i; 2755 2756 trace_usb_xhci_reset(); 2757 if (!(xhci->usbsts & USBSTS_HCH)) { 2758 fprintf(stderr, "xhci: reset while running!\n"); 2759 } 2760 2761 xhci->usbcmd = 0; 2762 xhci->usbsts = USBSTS_HCH; 2763 xhci->dnctrl = 0; 2764 xhci->crcr_low = 0; 2765 xhci->crcr_high = 0; 2766 xhci->dcbaap_low = 0; 2767 xhci->dcbaap_high = 0; 2768 xhci->config = 0; 2769 2770 for (i = 0; i < xhci->numslots; i++) { 2771 xhci_disable_slot(xhci, i+1); 2772 } 2773 2774 for (i = 0; i < xhci->numports; i++) { 2775 xhci_port_update(xhci->ports + i, 0); 2776 } 2777 2778 for (i = 0; i < xhci->numintrs; i++) { 2779 xhci->intr[i].iman = 0; 2780 xhci->intr[i].imod = 0; 2781 xhci->intr[i].erstsz = 0; 2782 xhci->intr[i].erstba_low = 0; 2783 xhci->intr[i].erstba_high = 0; 2784 xhci->intr[i].erdp_low = 0; 2785 xhci->intr[i].erdp_high = 0; 2786 xhci->intr[i].msix_used = 0; 2787 2788 xhci->intr[i].er_ep_idx = 0; 2789 xhci->intr[i].er_pcs = 1; 2790 xhci->intr[i].er_full = 0; 2791 xhci->intr[i].ev_buffer_put = 0; 2792 xhci->intr[i].ev_buffer_get = 0; 2793 } 2794 2795 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 2796 xhci_mfwrap_update(xhci); 2797 } 2798 2799 static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size) 2800 { 2801 XHCIState *xhci = ptr; 2802 uint32_t ret; 2803 2804 switch (reg) { 2805 case 0x00: /* HCIVERSION, CAPLENGTH */ 2806 ret = 0x01000000 | LEN_CAP; 2807 break; 2808 case 0x04: /* HCSPARAMS 1 */ 2809 ret = ((xhci->numports_2+xhci->numports_3)<<24) 2810 | (xhci->numintrs<<8) | xhci->numslots; 2811 break; 2812 case 0x08: /* HCSPARAMS 2 */ 2813 ret = 0x0000000f; 2814 break; 2815 case 0x0c: /* HCSPARAMS 3 */ 2816 ret = 0x00000000; 2817 break; 2818 case 0x10: /* HCCPARAMS */ 2819 if (sizeof(dma_addr_t) == 4) { 2820 ret = 0x00087000; 2821 } else { 2822 ret = 0x00087001; 2823 } 2824 break; 2825 case 0x14: /* DBOFF */ 2826 ret = OFF_DOORBELL; 2827 break; 2828 case 0x18: /* RTSOFF */ 2829 ret = OFF_RUNTIME; 2830 break; 2831 2832 /* extended capabilities */ 2833 case 0x20: /* Supported Protocol:00 */ 2834 ret = 0x02000402; /* USB 2.0 */ 2835 break; 2836 case 0x24: /* Supported Protocol:04 */ 2837 ret = 0x20425355; /* "USB " */ 2838 break; 2839 case 0x28: /* Supported Protocol:08 */ 2840 ret = 0x00000001 | (xhci->numports_2<<8); 2841 break; 2842 case 0x2c: /* Supported Protocol:0c */ 2843 ret = 0x00000000; /* reserved */ 2844 break; 2845 case 0x30: /* Supported Protocol:00 */ 2846 ret = 0x03000002; /* USB 3.0 */ 2847 break; 2848 case 0x34: /* Supported Protocol:04 */ 2849 ret = 0x20425355; /* "USB " */ 2850 break; 2851 case 0x38: /* Supported Protocol:08 */ 2852 ret = 0x00000000 | (xhci->numports_2+1) | (xhci->numports_3<<8); 2853 break; 2854 case 0x3c: /* Supported Protocol:0c */ 2855 ret = 0x00000000; /* reserved */ 2856 break; 2857 default: 2858 trace_usb_xhci_unimplemented("cap read", reg); 2859 ret = 0; 2860 } 2861 2862 trace_usb_xhci_cap_read(reg, ret); 2863 return ret; 2864 } 2865 2866 static uint64_t xhci_port_read(void *ptr, hwaddr reg, unsigned size) 2867 { 2868 XHCIPort *port = ptr; 2869 uint32_t ret; 2870 2871 switch (reg) { 2872 case 0x00: /* PORTSC */ 2873 ret = port->portsc; 2874 break; 2875 case 0x04: /* PORTPMSC */ 2876 case 0x08: /* PORTLI */ 2877 ret = 0; 2878 break; 2879 case 0x0c: /* reserved */ 2880 default: 2881 trace_usb_xhci_unimplemented("port read", reg); 2882 ret = 0; 2883 } 2884 2885 trace_usb_xhci_port_read(port->portnr, reg, ret); 2886 return ret; 2887 } 2888 2889 static void xhci_port_write(void *ptr, hwaddr reg, 2890 uint64_t val, unsigned size) 2891 { 2892 XHCIPort *port = ptr; 2893 uint32_t portsc, notify; 2894 2895 trace_usb_xhci_port_write(port->portnr, reg, val); 2896 2897 switch (reg) { 2898 case 0x00: /* PORTSC */ 2899 /* write-1-to-start bits */ 2900 if (val & PORTSC_WPR) { 2901 xhci_port_reset(port, true); 2902 break; 2903 } 2904 if (val & PORTSC_PR) { 2905 xhci_port_reset(port, false); 2906 break; 2907 } 2908 2909 portsc = port->portsc; 2910 notify = 0; 2911 /* write-1-to-clear bits*/ 2912 portsc &= ~(val & (PORTSC_CSC|PORTSC_PEC|PORTSC_WRC|PORTSC_OCC| 2913 PORTSC_PRC|PORTSC_PLC|PORTSC_CEC)); 2914 if (val & PORTSC_LWS) { 2915 /* overwrite PLS only when LWS=1 */ 2916 uint32_t old_pls = get_field(port->portsc, PORTSC_PLS); 2917 uint32_t new_pls = get_field(val, PORTSC_PLS); 2918 switch (new_pls) { 2919 case PLS_U0: 2920 if (old_pls != PLS_U0) { 2921 set_field(&portsc, new_pls, PORTSC_PLS); 2922 trace_usb_xhci_port_link(port->portnr, new_pls); 2923 notify = PORTSC_PLC; 2924 } 2925 break; 2926 case PLS_U3: 2927 if (old_pls < PLS_U3) { 2928 set_field(&portsc, new_pls, PORTSC_PLS); 2929 trace_usb_xhci_port_link(port->portnr, new_pls); 2930 } 2931 break; 2932 case PLS_RESUME: 2933 /* windows does this for some reason, don't spam stderr */ 2934 break; 2935 default: 2936 fprintf(stderr, "%s: ignore pls write (old %d, new %d)\n", 2937 __func__, old_pls, new_pls); 2938 break; 2939 } 2940 } 2941 /* read/write bits */ 2942 portsc &= ~(PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE); 2943 portsc |= (val & (PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE)); 2944 port->portsc = portsc; 2945 if (notify) { 2946 xhci_port_notify(port, notify); 2947 } 2948 break; 2949 case 0x04: /* PORTPMSC */ 2950 case 0x08: /* PORTLI */ 2951 default: 2952 trace_usb_xhci_unimplemented("port write", reg); 2953 } 2954 } 2955 2956 static uint64_t xhci_oper_read(void *ptr, hwaddr reg, unsigned size) 2957 { 2958 XHCIState *xhci = ptr; 2959 uint32_t ret; 2960 2961 switch (reg) { 2962 case 0x00: /* USBCMD */ 2963 ret = xhci->usbcmd; 2964 break; 2965 case 0x04: /* USBSTS */ 2966 ret = xhci->usbsts; 2967 break; 2968 case 0x08: /* PAGESIZE */ 2969 ret = 1; /* 4KiB */ 2970 break; 2971 case 0x14: /* DNCTRL */ 2972 ret = xhci->dnctrl; 2973 break; 2974 case 0x18: /* CRCR low */ 2975 ret = xhci->crcr_low & ~0xe; 2976 break; 2977 case 0x1c: /* CRCR high */ 2978 ret = xhci->crcr_high; 2979 break; 2980 case 0x30: /* DCBAAP low */ 2981 ret = xhci->dcbaap_low; 2982 break; 2983 case 0x34: /* DCBAAP high */ 2984 ret = xhci->dcbaap_high; 2985 break; 2986 case 0x38: /* CONFIG */ 2987 ret = xhci->config; 2988 break; 2989 default: 2990 trace_usb_xhci_unimplemented("oper read", reg); 2991 ret = 0; 2992 } 2993 2994 trace_usb_xhci_oper_read(reg, ret); 2995 return ret; 2996 } 2997 2998 static void xhci_oper_write(void *ptr, hwaddr reg, 2999 uint64_t val, unsigned size) 3000 { 3001 XHCIState *xhci = ptr; 3002 DeviceState *d = DEVICE(ptr); 3003 3004 trace_usb_xhci_oper_write(reg, val); 3005 3006 switch (reg) { 3007 case 0x00: /* USBCMD */ 3008 if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) { 3009 xhci_run(xhci); 3010 } else if (!(val & USBCMD_RS) && (xhci->usbcmd & USBCMD_RS)) { 3011 xhci_stop(xhci); 3012 } 3013 xhci->usbcmd = val & 0xc0f; 3014 xhci_mfwrap_update(xhci); 3015 if (val & USBCMD_HCRST) { 3016 xhci_reset(d); 3017 } 3018 xhci_intx_update(xhci); 3019 break; 3020 3021 case 0x04: /* USBSTS */ 3022 /* these bits are write-1-to-clear */ 3023 xhci->usbsts &= ~(val & (USBSTS_HSE|USBSTS_EINT|USBSTS_PCD|USBSTS_SRE)); 3024 xhci_intx_update(xhci); 3025 break; 3026 3027 case 0x14: /* DNCTRL */ 3028 xhci->dnctrl = val & 0xffff; 3029 break; 3030 case 0x18: /* CRCR low */ 3031 xhci->crcr_low = (val & 0xffffffcf) | (xhci->crcr_low & CRCR_CRR); 3032 break; 3033 case 0x1c: /* CRCR high */ 3034 xhci->crcr_high = val; 3035 if (xhci->crcr_low & (CRCR_CA|CRCR_CS) && (xhci->crcr_low & CRCR_CRR)) { 3036 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_COMMAND_RING_STOPPED}; 3037 xhci->crcr_low &= ~CRCR_CRR; 3038 xhci_event(xhci, &event, 0); 3039 DPRINTF("xhci: command ring stopped (CRCR=%08x)\n", xhci->crcr_low); 3040 } else { 3041 dma_addr_t base = xhci_addr64(xhci->crcr_low & ~0x3f, val); 3042 xhci_ring_init(xhci, &xhci->cmd_ring, base); 3043 } 3044 xhci->crcr_low &= ~(CRCR_CA | CRCR_CS); 3045 break; 3046 case 0x30: /* DCBAAP low */ 3047 xhci->dcbaap_low = val & 0xffffffc0; 3048 break; 3049 case 0x34: /* DCBAAP high */ 3050 xhci->dcbaap_high = val; 3051 break; 3052 case 0x38: /* CONFIG */ 3053 xhci->config = val & 0xff; 3054 break; 3055 default: 3056 trace_usb_xhci_unimplemented("oper write", reg); 3057 } 3058 } 3059 3060 static uint64_t xhci_runtime_read(void *ptr, hwaddr reg, 3061 unsigned size) 3062 { 3063 XHCIState *xhci = ptr; 3064 uint32_t ret = 0; 3065 3066 if (reg < 0x20) { 3067 switch (reg) { 3068 case 0x00: /* MFINDEX */ 3069 ret = xhci_mfindex_get(xhci) & 0x3fff; 3070 break; 3071 default: 3072 trace_usb_xhci_unimplemented("runtime read", reg); 3073 break; 3074 } 3075 } else { 3076 int v = (reg - 0x20) / 0x20; 3077 XHCIInterrupter *intr = &xhci->intr[v]; 3078 switch (reg & 0x1f) { 3079 case 0x00: /* IMAN */ 3080 ret = intr->iman; 3081 break; 3082 case 0x04: /* IMOD */ 3083 ret = intr->imod; 3084 break; 3085 case 0x08: /* ERSTSZ */ 3086 ret = intr->erstsz; 3087 break; 3088 case 0x10: /* ERSTBA low */ 3089 ret = intr->erstba_low; 3090 break; 3091 case 0x14: /* ERSTBA high */ 3092 ret = intr->erstba_high; 3093 break; 3094 case 0x18: /* ERDP low */ 3095 ret = intr->erdp_low; 3096 break; 3097 case 0x1c: /* ERDP high */ 3098 ret = intr->erdp_high; 3099 break; 3100 } 3101 } 3102 3103 trace_usb_xhci_runtime_read(reg, ret); 3104 return ret; 3105 } 3106 3107 static void xhci_runtime_write(void *ptr, hwaddr reg, 3108 uint64_t val, unsigned size) 3109 { 3110 XHCIState *xhci = ptr; 3111 int v = (reg - 0x20) / 0x20; 3112 XHCIInterrupter *intr = &xhci->intr[v]; 3113 trace_usb_xhci_runtime_write(reg, val); 3114 3115 if (reg < 0x20) { 3116 trace_usb_xhci_unimplemented("runtime write", reg); 3117 return; 3118 } 3119 3120 switch (reg & 0x1f) { 3121 case 0x00: /* IMAN */ 3122 if (val & IMAN_IP) { 3123 intr->iman &= ~IMAN_IP; 3124 } 3125 intr->iman &= ~IMAN_IE; 3126 intr->iman |= val & IMAN_IE; 3127 if (v == 0) { 3128 xhci_intx_update(xhci); 3129 } 3130 xhci_msix_update(xhci, v); 3131 break; 3132 case 0x04: /* IMOD */ 3133 intr->imod = val; 3134 break; 3135 case 0x08: /* ERSTSZ */ 3136 intr->erstsz = val & 0xffff; 3137 break; 3138 case 0x10: /* ERSTBA low */ 3139 /* XXX NEC driver bug: it doesn't align this to 64 bytes 3140 intr->erstba_low = val & 0xffffffc0; */ 3141 intr->erstba_low = val & 0xfffffff0; 3142 break; 3143 case 0x14: /* ERSTBA high */ 3144 intr->erstba_high = val; 3145 xhci_er_reset(xhci, v); 3146 break; 3147 case 0x18: /* ERDP low */ 3148 if (val & ERDP_EHB) { 3149 intr->erdp_low &= ~ERDP_EHB; 3150 } 3151 intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB); 3152 break; 3153 case 0x1c: /* ERDP high */ 3154 intr->erdp_high = val; 3155 xhci_events_update(xhci, v); 3156 break; 3157 default: 3158 trace_usb_xhci_unimplemented("oper write", reg); 3159 } 3160 } 3161 3162 static uint64_t xhci_doorbell_read(void *ptr, hwaddr reg, 3163 unsigned size) 3164 { 3165 /* doorbells always read as 0 */ 3166 trace_usb_xhci_doorbell_read(reg, 0); 3167 return 0; 3168 } 3169 3170 static void xhci_doorbell_write(void *ptr, hwaddr reg, 3171 uint64_t val, unsigned size) 3172 { 3173 XHCIState *xhci = ptr; 3174 unsigned int epid, streamid; 3175 3176 trace_usb_xhci_doorbell_write(reg, val); 3177 3178 if (!xhci_running(xhci)) { 3179 fprintf(stderr, "xhci: wrote doorbell while xHC stopped or paused\n"); 3180 return; 3181 } 3182 3183 reg >>= 2; 3184 3185 if (reg == 0) { 3186 if (val == 0) { 3187 xhci_process_commands(xhci); 3188 } else { 3189 fprintf(stderr, "xhci: bad doorbell 0 write: 0x%x\n", 3190 (uint32_t)val); 3191 } 3192 } else { 3193 epid = val & 0xff; 3194 streamid = (val >> 16) & 0xffff; 3195 if (reg > xhci->numslots) { 3196 fprintf(stderr, "xhci: bad doorbell %d\n", (int)reg); 3197 } else if (epid > 31) { 3198 fprintf(stderr, "xhci: bad doorbell %d write: 0x%x\n", 3199 (int)reg, (uint32_t)val); 3200 } else { 3201 xhci_kick_ep(xhci, reg, epid, streamid); 3202 } 3203 } 3204 } 3205 3206 static void xhci_cap_write(void *opaque, hwaddr addr, uint64_t val, 3207 unsigned width) 3208 { 3209 /* nothing */ 3210 } 3211 3212 static const MemoryRegionOps xhci_cap_ops = { 3213 .read = xhci_cap_read, 3214 .write = xhci_cap_write, 3215 .valid.min_access_size = 1, 3216 .valid.max_access_size = 4, 3217 .impl.min_access_size = 4, 3218 .impl.max_access_size = 4, 3219 .endianness = DEVICE_LITTLE_ENDIAN, 3220 }; 3221 3222 static const MemoryRegionOps xhci_oper_ops = { 3223 .read = xhci_oper_read, 3224 .write = xhci_oper_write, 3225 .valid.min_access_size = 4, 3226 .valid.max_access_size = 4, 3227 .endianness = DEVICE_LITTLE_ENDIAN, 3228 }; 3229 3230 static const MemoryRegionOps xhci_port_ops = { 3231 .read = xhci_port_read, 3232 .write = xhci_port_write, 3233 .valid.min_access_size = 4, 3234 .valid.max_access_size = 4, 3235 .endianness = DEVICE_LITTLE_ENDIAN, 3236 }; 3237 3238 static const MemoryRegionOps xhci_runtime_ops = { 3239 .read = xhci_runtime_read, 3240 .write = xhci_runtime_write, 3241 .valid.min_access_size = 4, 3242 .valid.max_access_size = 4, 3243 .endianness = DEVICE_LITTLE_ENDIAN, 3244 }; 3245 3246 static const MemoryRegionOps xhci_doorbell_ops = { 3247 .read = xhci_doorbell_read, 3248 .write = xhci_doorbell_write, 3249 .valid.min_access_size = 4, 3250 .valid.max_access_size = 4, 3251 .endianness = DEVICE_LITTLE_ENDIAN, 3252 }; 3253 3254 static void xhci_attach(USBPort *usbport) 3255 { 3256 XHCIState *xhci = usbport->opaque; 3257 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3258 3259 xhci_port_update(port, 0); 3260 } 3261 3262 static void xhci_detach(USBPort *usbport) 3263 { 3264 XHCIState *xhci = usbport->opaque; 3265 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3266 3267 xhci_detach_slot(xhci, usbport); 3268 xhci_port_update(port, 1); 3269 } 3270 3271 static void xhci_wakeup(USBPort *usbport) 3272 { 3273 XHCIState *xhci = usbport->opaque; 3274 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3275 3276 if (get_field(port->portsc, PORTSC_PLS) != PLS_U3) { 3277 return; 3278 } 3279 set_field(&port->portsc, PLS_RESUME, PORTSC_PLS); 3280 xhci_port_notify(port, PORTSC_PLC); 3281 } 3282 3283 static void xhci_complete(USBPort *port, USBPacket *packet) 3284 { 3285 XHCITransfer *xfer = container_of(packet, XHCITransfer, packet); 3286 3287 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 3288 xhci_ep_nuke_one_xfer(xfer); 3289 return; 3290 } 3291 xhci_complete_packet(xfer); 3292 xhci_kick_ep(xfer->xhci, xfer->slotid, xfer->epid, xfer->streamid); 3293 } 3294 3295 static void xhci_child_detach(USBPort *uport, USBDevice *child) 3296 { 3297 USBBus *bus = usb_bus_from_device(child); 3298 XHCIState *xhci = container_of(bus, XHCIState, bus); 3299 3300 xhci_detach_slot(xhci, uport); 3301 } 3302 3303 static USBPortOps xhci_uport_ops = { 3304 .attach = xhci_attach, 3305 .detach = xhci_detach, 3306 .wakeup = xhci_wakeup, 3307 .complete = xhci_complete, 3308 .child_detach = xhci_child_detach, 3309 }; 3310 3311 static int xhci_find_epid(USBEndpoint *ep) 3312 { 3313 if (ep->nr == 0) { 3314 return 1; 3315 } 3316 if (ep->pid == USB_TOKEN_IN) { 3317 return ep->nr * 2 + 1; 3318 } else { 3319 return ep->nr * 2; 3320 } 3321 } 3322 3323 static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, 3324 unsigned int stream) 3325 { 3326 XHCIState *xhci = container_of(bus, XHCIState, bus); 3327 int slotid; 3328 3329 DPRINTF("%s\n", __func__); 3330 slotid = ep->dev->addr; 3331 if (slotid == 0 || !xhci->slots[slotid-1].enabled) { 3332 DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr); 3333 return; 3334 } 3335 xhci_kick_ep(xhci, slotid, xhci_find_epid(ep), stream); 3336 } 3337 3338 static USBBusOps xhci_bus_ops = { 3339 .wakeup_endpoint = xhci_wakeup_endpoint, 3340 }; 3341 3342 static void usb_xhci_init(XHCIState *xhci) 3343 { 3344 DeviceState *dev = DEVICE(xhci); 3345 XHCIPort *port; 3346 int i, usbports, speedmask; 3347 3348 xhci->usbsts = USBSTS_HCH; 3349 3350 if (xhci->numports_2 > MAXPORTS_2) { 3351 xhci->numports_2 = MAXPORTS_2; 3352 } 3353 if (xhci->numports_3 > MAXPORTS_3) { 3354 xhci->numports_3 = MAXPORTS_3; 3355 } 3356 usbports = MAX(xhci->numports_2, xhci->numports_3); 3357 xhci->numports = xhci->numports_2 + xhci->numports_3; 3358 3359 usb_bus_new(&xhci->bus, sizeof(xhci->bus), &xhci_bus_ops, dev); 3360 3361 for (i = 0; i < usbports; i++) { 3362 speedmask = 0; 3363 if (i < xhci->numports_2) { 3364 port = &xhci->ports[i]; 3365 port->portnr = i + 1; 3366 port->uport = &xhci->uports[i]; 3367 port->speedmask = 3368 USB_SPEED_MASK_LOW | 3369 USB_SPEED_MASK_FULL | 3370 USB_SPEED_MASK_HIGH; 3371 snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1); 3372 speedmask |= port->speedmask; 3373 } 3374 if (i < xhci->numports_3) { 3375 port = &xhci->ports[i + xhci->numports_2]; 3376 port->portnr = i + 1 + xhci->numports_2; 3377 port->uport = &xhci->uports[i]; 3378 port->speedmask = USB_SPEED_MASK_SUPER; 3379 snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1); 3380 speedmask |= port->speedmask; 3381 } 3382 usb_register_port(&xhci->bus, &xhci->uports[i], xhci, i, 3383 &xhci_uport_ops, speedmask); 3384 } 3385 } 3386 3387 static int usb_xhci_initfn(struct PCIDevice *dev) 3388 { 3389 int i, ret; 3390 3391 XHCIState *xhci = XHCI(dev); 3392 3393 dev->config[PCI_CLASS_PROG] = 0x30; /* xHCI */ 3394 dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */ 3395 dev->config[PCI_CACHE_LINE_SIZE] = 0x10; 3396 dev->config[0x60] = 0x30; /* release number */ 3397 3398 usb_xhci_init(xhci); 3399 3400 if (xhci->numintrs > MAXINTRS) { 3401 xhci->numintrs = MAXINTRS; 3402 } 3403 while (xhci->numintrs & (xhci->numintrs - 1)) { /* ! power of 2 */ 3404 xhci->numintrs++; 3405 } 3406 if (xhci->numintrs < 1) { 3407 xhci->numintrs = 1; 3408 } 3409 if (xhci->numslots > MAXSLOTS) { 3410 xhci->numslots = MAXSLOTS; 3411 } 3412 if (xhci->numslots < 1) { 3413 xhci->numslots = 1; 3414 } 3415 3416 xhci->mfwrap_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_mfwrap_timer, xhci); 3417 3418 memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); 3419 memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, 3420 "capabilities", LEN_CAP); 3421 memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, 3422 "operational", 0x400); 3423 memory_region_init_io(&xhci->mem_runtime, OBJECT(xhci), &xhci_runtime_ops, xhci, 3424 "runtime", LEN_RUNTIME); 3425 memory_region_init_io(&xhci->mem_doorbell, OBJECT(xhci), &xhci_doorbell_ops, xhci, 3426 "doorbell", LEN_DOORBELL); 3427 3428 memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap); 3429 memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper); 3430 memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime); 3431 memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell); 3432 3433 for (i = 0; i < xhci->numports; i++) { 3434 XHCIPort *port = &xhci->ports[i]; 3435 uint32_t offset = OFF_OPER + 0x400 + 0x10 * i; 3436 port->xhci = xhci; 3437 memory_region_init_io(&port->mem, OBJECT(xhci), &xhci_port_ops, port, 3438 port->name, 0x10); 3439 memory_region_add_subregion(&xhci->mem, offset, &port->mem); 3440 } 3441 3442 pci_register_bar(dev, 0, 3443 PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64, 3444 &xhci->mem); 3445 3446 ret = pcie_endpoint_cap_init(dev, 0xa0); 3447 assert(ret >= 0); 3448 3449 if (xhci->flags & (1 << XHCI_FLAG_USE_MSI)) { 3450 msi_init(dev, 0x70, xhci->numintrs, true, false); 3451 } 3452 if (xhci->flags & (1 << XHCI_FLAG_USE_MSI_X)) { 3453 msix_init(dev, xhci->numintrs, 3454 &xhci->mem, 0, OFF_MSIX_TABLE, 3455 &xhci->mem, 0, OFF_MSIX_PBA, 3456 0x90); 3457 } 3458 3459 return 0; 3460 } 3461 3462 static int usb_xhci_post_load(void *opaque, int version_id) 3463 { 3464 XHCIState *xhci = opaque; 3465 PCIDevice *pci_dev = PCI_DEVICE(xhci); 3466 XHCISlot *slot; 3467 XHCIEPContext *epctx; 3468 dma_addr_t dcbaap, pctx; 3469 uint32_t slot_ctx[4]; 3470 uint32_t ep_ctx[5]; 3471 int slotid, epid, state, intr; 3472 3473 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 3474 3475 for (slotid = 1; slotid <= xhci->numslots; slotid++) { 3476 slot = &xhci->slots[slotid-1]; 3477 if (!slot->addressed) { 3478 continue; 3479 } 3480 slot->ctx = 3481 xhci_mask64(ldq_le_pci_dma(pci_dev, dcbaap + 8 * slotid)); 3482 xhci_dma_read_u32s(xhci, slot->ctx, slot_ctx, sizeof(slot_ctx)); 3483 slot->uport = xhci_lookup_uport(xhci, slot_ctx); 3484 assert(slot->uport && slot->uport->dev); 3485 3486 for (epid = 1; epid <= 32; epid++) { 3487 pctx = slot->ctx + 32 * epid; 3488 xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx)); 3489 state = ep_ctx[0] & EP_STATE_MASK; 3490 if (state == EP_DISABLED) { 3491 continue; 3492 } 3493 epctx = xhci_alloc_epctx(xhci, slotid, epid); 3494 slot->eps[epid-1] = epctx; 3495 xhci_init_epctx(epctx, pctx, ep_ctx); 3496 epctx->state = state; 3497 if (state == EP_RUNNING) { 3498 /* kick endpoint after vmload is finished */ 3499 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); 3500 } 3501 } 3502 } 3503 3504 for (intr = 0; intr < xhci->numintrs; intr++) { 3505 if (xhci->intr[intr].msix_used) { 3506 msix_vector_use(pci_dev, intr); 3507 } else { 3508 msix_vector_unuse(pci_dev, intr); 3509 } 3510 } 3511 3512 return 0; 3513 } 3514 3515 static const VMStateDescription vmstate_xhci_ring = { 3516 .name = "xhci-ring", 3517 .version_id = 1, 3518 .fields = (VMStateField[]) { 3519 VMSTATE_UINT64(dequeue, XHCIRing), 3520 VMSTATE_BOOL(ccs, XHCIRing), 3521 VMSTATE_END_OF_LIST() 3522 } 3523 }; 3524 3525 static const VMStateDescription vmstate_xhci_port = { 3526 .name = "xhci-port", 3527 .version_id = 1, 3528 .fields = (VMStateField[]) { 3529 VMSTATE_UINT32(portsc, XHCIPort), 3530 VMSTATE_END_OF_LIST() 3531 } 3532 }; 3533 3534 static const VMStateDescription vmstate_xhci_slot = { 3535 .name = "xhci-slot", 3536 .version_id = 1, 3537 .fields = (VMStateField[]) { 3538 VMSTATE_BOOL(enabled, XHCISlot), 3539 VMSTATE_BOOL(addressed, XHCISlot), 3540 VMSTATE_END_OF_LIST() 3541 } 3542 }; 3543 3544 static const VMStateDescription vmstate_xhci_event = { 3545 .name = "xhci-event", 3546 .version_id = 1, 3547 .fields = (VMStateField[]) { 3548 VMSTATE_UINT32(type, XHCIEvent), 3549 VMSTATE_UINT32(ccode, XHCIEvent), 3550 VMSTATE_UINT64(ptr, XHCIEvent), 3551 VMSTATE_UINT32(length, XHCIEvent), 3552 VMSTATE_UINT32(flags, XHCIEvent), 3553 VMSTATE_UINT8(slotid, XHCIEvent), 3554 VMSTATE_UINT8(epid, XHCIEvent), 3555 } 3556 }; 3557 3558 static bool xhci_er_full(void *opaque, int version_id) 3559 { 3560 struct XHCIInterrupter *intr = opaque; 3561 return intr->er_full; 3562 } 3563 3564 static const VMStateDescription vmstate_xhci_intr = { 3565 .name = "xhci-intr", 3566 .version_id = 1, 3567 .fields = (VMStateField[]) { 3568 /* registers */ 3569 VMSTATE_UINT32(iman, XHCIInterrupter), 3570 VMSTATE_UINT32(imod, XHCIInterrupter), 3571 VMSTATE_UINT32(erstsz, XHCIInterrupter), 3572 VMSTATE_UINT32(erstba_low, XHCIInterrupter), 3573 VMSTATE_UINT32(erstba_high, XHCIInterrupter), 3574 VMSTATE_UINT32(erdp_low, XHCIInterrupter), 3575 VMSTATE_UINT32(erdp_high, XHCIInterrupter), 3576 3577 /* state */ 3578 VMSTATE_BOOL(msix_used, XHCIInterrupter), 3579 VMSTATE_BOOL(er_pcs, XHCIInterrupter), 3580 VMSTATE_UINT64(er_start, XHCIInterrupter), 3581 VMSTATE_UINT32(er_size, XHCIInterrupter), 3582 VMSTATE_UINT32(er_ep_idx, XHCIInterrupter), 3583 3584 /* event queue (used if ring is full) */ 3585 VMSTATE_BOOL(er_full, XHCIInterrupter), 3586 VMSTATE_UINT32_TEST(ev_buffer_put, XHCIInterrupter, xhci_er_full), 3587 VMSTATE_UINT32_TEST(ev_buffer_get, XHCIInterrupter, xhci_er_full), 3588 VMSTATE_STRUCT_ARRAY_TEST(ev_buffer, XHCIInterrupter, EV_QUEUE, 3589 xhci_er_full, 1, 3590 vmstate_xhci_event, XHCIEvent), 3591 3592 VMSTATE_END_OF_LIST() 3593 } 3594 }; 3595 3596 static const VMStateDescription vmstate_xhci = { 3597 .name = "xhci", 3598 .version_id = 1, 3599 .post_load = usb_xhci_post_load, 3600 .fields = (VMStateField[]) { 3601 VMSTATE_PCIE_DEVICE(parent_obj, XHCIState), 3602 VMSTATE_MSIX(parent_obj, XHCIState), 3603 3604 VMSTATE_STRUCT_VARRAY_UINT32(ports, XHCIState, numports, 1, 3605 vmstate_xhci_port, XHCIPort), 3606 VMSTATE_STRUCT_VARRAY_UINT32(slots, XHCIState, numslots, 1, 3607 vmstate_xhci_slot, XHCISlot), 3608 VMSTATE_STRUCT_VARRAY_UINT32(intr, XHCIState, numintrs, 1, 3609 vmstate_xhci_intr, XHCIInterrupter), 3610 3611 /* Operational Registers */ 3612 VMSTATE_UINT32(usbcmd, XHCIState), 3613 VMSTATE_UINT32(usbsts, XHCIState), 3614 VMSTATE_UINT32(dnctrl, XHCIState), 3615 VMSTATE_UINT32(crcr_low, XHCIState), 3616 VMSTATE_UINT32(crcr_high, XHCIState), 3617 VMSTATE_UINT32(dcbaap_low, XHCIState), 3618 VMSTATE_UINT32(dcbaap_high, XHCIState), 3619 VMSTATE_UINT32(config, XHCIState), 3620 3621 /* Runtime Registers & state */ 3622 VMSTATE_INT64(mfindex_start, XHCIState), 3623 VMSTATE_TIMER(mfwrap_timer, XHCIState), 3624 VMSTATE_STRUCT(cmd_ring, XHCIState, 1, vmstate_xhci_ring, XHCIRing), 3625 3626 VMSTATE_END_OF_LIST() 3627 } 3628 }; 3629 3630 static Property xhci_properties[] = { 3631 DEFINE_PROP_BIT("msi", XHCIState, flags, XHCI_FLAG_USE_MSI, true), 3632 DEFINE_PROP_BIT("msix", XHCIState, flags, XHCI_FLAG_USE_MSI_X, true), 3633 DEFINE_PROP_UINT32("intrs", XHCIState, numintrs, MAXINTRS), 3634 DEFINE_PROP_UINT32("slots", XHCIState, numslots, MAXSLOTS), 3635 DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4), 3636 DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4), 3637 DEFINE_PROP_END_OF_LIST(), 3638 }; 3639 3640 static void xhci_class_init(ObjectClass *klass, void *data) 3641 { 3642 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 3643 DeviceClass *dc = DEVICE_CLASS(klass); 3644 3645 dc->vmsd = &vmstate_xhci; 3646 dc->props = xhci_properties; 3647 dc->reset = xhci_reset; 3648 set_bit(DEVICE_CATEGORY_USB, dc->categories); 3649 k->init = usb_xhci_initfn; 3650 k->vendor_id = PCI_VENDOR_ID_NEC; 3651 k->device_id = PCI_DEVICE_ID_NEC_UPD720200; 3652 k->class_id = PCI_CLASS_SERIAL_USB; 3653 k->revision = 0x03; 3654 k->is_express = 1; 3655 k->no_hotplug = 1; 3656 } 3657 3658 static const TypeInfo xhci_info = { 3659 .name = TYPE_XHCI, 3660 .parent = TYPE_PCI_DEVICE, 3661 .instance_size = sizeof(XHCIState), 3662 .class_init = xhci_class_init, 3663 }; 3664 3665 static void xhci_register_types(void) 3666 { 3667 type_register_static(&xhci_info); 3668 } 3669 3670 type_init(xhci_register_types) 3671