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 "qemu/osdep.h" 22 #include "hw/hw.h" 23 #include "qemu/timer.h" 24 #include "qemu/queue.h" 25 #include "hw/usb.h" 26 #include "hw/pci/pci.h" 27 #include "hw/pci/msi.h" 28 #include "hw/pci/msix.h" 29 #include "trace.h" 30 #include "qapi/error.h" 31 32 //#define DEBUG_XHCI 33 //#define DEBUG_DATA 34 35 #ifdef DEBUG_XHCI 36 #define DPRINTF(...) fprintf(stderr, __VA_ARGS__) 37 #else 38 #define DPRINTF(...) do {} while (0) 39 #endif 40 #define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \ 41 __func__, __LINE__, _msg); abort(); } while (0) 42 43 #define MAXPORTS_2 15 44 #define MAXPORTS_3 15 45 46 #define MAXPORTS (MAXPORTS_2+MAXPORTS_3) 47 #define MAXSLOTS 64 48 #define MAXINTRS 16 49 50 /* Very pessimistic, let's hope it's enough for all cases */ 51 #define EV_QUEUE (((3 * 24) + 16) * MAXSLOTS) 52 /* Do not deliver ER Full events. NEC's driver does some things not bound 53 * to the specs when it gets them */ 54 #define ER_FULL_HACK 55 56 #define TRB_LINK_LIMIT 4 57 58 #define LEN_CAP 0x40 59 #define LEN_OPER (0x400 + 0x10 * MAXPORTS) 60 #define LEN_RUNTIME ((MAXINTRS + 1) * 0x20) 61 #define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20) 62 63 #define OFF_OPER LEN_CAP 64 #define OFF_RUNTIME 0x1000 65 #define OFF_DOORBELL 0x2000 66 #define OFF_MSIX_TABLE 0x3000 67 #define OFF_MSIX_PBA 0x3800 68 /* must be power of 2 */ 69 #define LEN_REGS 0x4000 70 71 #if (OFF_OPER + LEN_OPER) > OFF_RUNTIME 72 #error Increase OFF_RUNTIME 73 #endif 74 #if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL 75 #error Increase OFF_DOORBELL 76 #endif 77 #if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS 78 # error Increase LEN_REGS 79 #endif 80 81 /* bit definitions */ 82 #define USBCMD_RS (1<<0) 83 #define USBCMD_HCRST (1<<1) 84 #define USBCMD_INTE (1<<2) 85 #define USBCMD_HSEE (1<<3) 86 #define USBCMD_LHCRST (1<<7) 87 #define USBCMD_CSS (1<<8) 88 #define USBCMD_CRS (1<<9) 89 #define USBCMD_EWE (1<<10) 90 #define USBCMD_EU3S (1<<11) 91 92 #define USBSTS_HCH (1<<0) 93 #define USBSTS_HSE (1<<2) 94 #define USBSTS_EINT (1<<3) 95 #define USBSTS_PCD (1<<4) 96 #define USBSTS_SSS (1<<8) 97 #define USBSTS_RSS (1<<9) 98 #define USBSTS_SRE (1<<10) 99 #define USBSTS_CNR (1<<11) 100 #define USBSTS_HCE (1<<12) 101 102 103 #define PORTSC_CCS (1<<0) 104 #define PORTSC_PED (1<<1) 105 #define PORTSC_OCA (1<<3) 106 #define PORTSC_PR (1<<4) 107 #define PORTSC_PLS_SHIFT 5 108 #define PORTSC_PLS_MASK 0xf 109 #define PORTSC_PP (1<<9) 110 #define PORTSC_SPEED_SHIFT 10 111 #define PORTSC_SPEED_MASK 0xf 112 #define PORTSC_SPEED_FULL (1<<10) 113 #define PORTSC_SPEED_LOW (2<<10) 114 #define PORTSC_SPEED_HIGH (3<<10) 115 #define PORTSC_SPEED_SUPER (4<<10) 116 #define PORTSC_PIC_SHIFT 14 117 #define PORTSC_PIC_MASK 0x3 118 #define PORTSC_LWS (1<<16) 119 #define PORTSC_CSC (1<<17) 120 #define PORTSC_PEC (1<<18) 121 #define PORTSC_WRC (1<<19) 122 #define PORTSC_OCC (1<<20) 123 #define PORTSC_PRC (1<<21) 124 #define PORTSC_PLC (1<<22) 125 #define PORTSC_CEC (1<<23) 126 #define PORTSC_CAS (1<<24) 127 #define PORTSC_WCE (1<<25) 128 #define PORTSC_WDE (1<<26) 129 #define PORTSC_WOE (1<<27) 130 #define PORTSC_DR (1<<30) 131 #define PORTSC_WPR (1<<31) 132 133 #define CRCR_RCS (1<<0) 134 #define CRCR_CS (1<<1) 135 #define CRCR_CA (1<<2) 136 #define CRCR_CRR (1<<3) 137 138 #define IMAN_IP (1<<0) 139 #define IMAN_IE (1<<1) 140 141 #define ERDP_EHB (1<<3) 142 143 #define TRB_SIZE 16 144 typedef struct XHCITRB { 145 uint64_t parameter; 146 uint32_t status; 147 uint32_t control; 148 dma_addr_t addr; 149 bool ccs; 150 } XHCITRB; 151 152 enum { 153 PLS_U0 = 0, 154 PLS_U1 = 1, 155 PLS_U2 = 2, 156 PLS_U3 = 3, 157 PLS_DISABLED = 4, 158 PLS_RX_DETECT = 5, 159 PLS_INACTIVE = 6, 160 PLS_POLLING = 7, 161 PLS_RECOVERY = 8, 162 PLS_HOT_RESET = 9, 163 PLS_COMPILANCE_MODE = 10, 164 PLS_TEST_MODE = 11, 165 PLS_RESUME = 15, 166 }; 167 168 typedef enum TRBType { 169 TRB_RESERVED = 0, 170 TR_NORMAL, 171 TR_SETUP, 172 TR_DATA, 173 TR_STATUS, 174 TR_ISOCH, 175 TR_LINK, 176 TR_EVDATA, 177 TR_NOOP, 178 CR_ENABLE_SLOT, 179 CR_DISABLE_SLOT, 180 CR_ADDRESS_DEVICE, 181 CR_CONFIGURE_ENDPOINT, 182 CR_EVALUATE_CONTEXT, 183 CR_RESET_ENDPOINT, 184 CR_STOP_ENDPOINT, 185 CR_SET_TR_DEQUEUE, 186 CR_RESET_DEVICE, 187 CR_FORCE_EVENT, 188 CR_NEGOTIATE_BW, 189 CR_SET_LATENCY_TOLERANCE, 190 CR_GET_PORT_BANDWIDTH, 191 CR_FORCE_HEADER, 192 CR_NOOP, 193 ER_TRANSFER = 32, 194 ER_COMMAND_COMPLETE, 195 ER_PORT_STATUS_CHANGE, 196 ER_BANDWIDTH_REQUEST, 197 ER_DOORBELL, 198 ER_HOST_CONTROLLER, 199 ER_DEVICE_NOTIFICATION, 200 ER_MFINDEX_WRAP, 201 /* vendor specific bits */ 202 CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48, 203 CR_VENDOR_NEC_FIRMWARE_REVISION = 49, 204 CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50, 205 } TRBType; 206 207 #define CR_LINK TR_LINK 208 209 typedef enum TRBCCode { 210 CC_INVALID = 0, 211 CC_SUCCESS, 212 CC_DATA_BUFFER_ERROR, 213 CC_BABBLE_DETECTED, 214 CC_USB_TRANSACTION_ERROR, 215 CC_TRB_ERROR, 216 CC_STALL_ERROR, 217 CC_RESOURCE_ERROR, 218 CC_BANDWIDTH_ERROR, 219 CC_NO_SLOTS_ERROR, 220 CC_INVALID_STREAM_TYPE_ERROR, 221 CC_SLOT_NOT_ENABLED_ERROR, 222 CC_EP_NOT_ENABLED_ERROR, 223 CC_SHORT_PACKET, 224 CC_RING_UNDERRUN, 225 CC_RING_OVERRUN, 226 CC_VF_ER_FULL, 227 CC_PARAMETER_ERROR, 228 CC_BANDWIDTH_OVERRUN, 229 CC_CONTEXT_STATE_ERROR, 230 CC_NO_PING_RESPONSE_ERROR, 231 CC_EVENT_RING_FULL_ERROR, 232 CC_INCOMPATIBLE_DEVICE_ERROR, 233 CC_MISSED_SERVICE_ERROR, 234 CC_COMMAND_RING_STOPPED, 235 CC_COMMAND_ABORTED, 236 CC_STOPPED, 237 CC_STOPPED_LENGTH_INVALID, 238 CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR = 29, 239 CC_ISOCH_BUFFER_OVERRUN = 31, 240 CC_EVENT_LOST_ERROR, 241 CC_UNDEFINED_ERROR, 242 CC_INVALID_STREAM_ID_ERROR, 243 CC_SECONDARY_BANDWIDTH_ERROR, 244 CC_SPLIT_TRANSACTION_ERROR 245 } TRBCCode; 246 247 #define TRB_C (1<<0) 248 #define TRB_TYPE_SHIFT 10 249 #define TRB_TYPE_MASK 0x3f 250 #define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK) 251 252 #define TRB_EV_ED (1<<2) 253 254 #define TRB_TR_ENT (1<<1) 255 #define TRB_TR_ISP (1<<2) 256 #define TRB_TR_NS (1<<3) 257 #define TRB_TR_CH (1<<4) 258 #define TRB_TR_IOC (1<<5) 259 #define TRB_TR_IDT (1<<6) 260 #define TRB_TR_TBC_SHIFT 7 261 #define TRB_TR_TBC_MASK 0x3 262 #define TRB_TR_BEI (1<<9) 263 #define TRB_TR_TLBPC_SHIFT 16 264 #define TRB_TR_TLBPC_MASK 0xf 265 #define TRB_TR_FRAMEID_SHIFT 20 266 #define TRB_TR_FRAMEID_MASK 0x7ff 267 #define TRB_TR_SIA (1<<31) 268 269 #define TRB_TR_DIR (1<<16) 270 271 #define TRB_CR_SLOTID_SHIFT 24 272 #define TRB_CR_SLOTID_MASK 0xff 273 #define TRB_CR_EPID_SHIFT 16 274 #define TRB_CR_EPID_MASK 0x1f 275 276 #define TRB_CR_BSR (1<<9) 277 #define TRB_CR_DC (1<<9) 278 279 #define TRB_LK_TC (1<<1) 280 281 #define TRB_INTR_SHIFT 22 282 #define TRB_INTR_MASK 0x3ff 283 #define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK) 284 285 #define EP_TYPE_MASK 0x7 286 #define EP_TYPE_SHIFT 3 287 288 #define EP_STATE_MASK 0x7 289 #define EP_DISABLED (0<<0) 290 #define EP_RUNNING (1<<0) 291 #define EP_HALTED (2<<0) 292 #define EP_STOPPED (3<<0) 293 #define EP_ERROR (4<<0) 294 295 #define SLOT_STATE_MASK 0x1f 296 #define SLOT_STATE_SHIFT 27 297 #define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK) 298 #define SLOT_ENABLED 0 299 #define SLOT_DEFAULT 1 300 #define SLOT_ADDRESSED 2 301 #define SLOT_CONFIGURED 3 302 303 #define SLOT_CONTEXT_ENTRIES_MASK 0x1f 304 #define SLOT_CONTEXT_ENTRIES_SHIFT 27 305 306 typedef struct XHCIState XHCIState; 307 typedef struct XHCIStreamContext XHCIStreamContext; 308 typedef struct XHCIEPContext XHCIEPContext; 309 310 #define get_field(data, field) \ 311 (((data) >> field##_SHIFT) & field##_MASK) 312 313 #define set_field(data, newval, field) do { \ 314 uint32_t val = *data; \ 315 val &= ~(field##_MASK << field##_SHIFT); \ 316 val |= ((newval) & field##_MASK) << field##_SHIFT; \ 317 *data = val; \ 318 } while (0) 319 320 typedef enum EPType { 321 ET_INVALID = 0, 322 ET_ISO_OUT, 323 ET_BULK_OUT, 324 ET_INTR_OUT, 325 ET_CONTROL, 326 ET_ISO_IN, 327 ET_BULK_IN, 328 ET_INTR_IN, 329 } EPType; 330 331 typedef struct XHCIRing { 332 dma_addr_t dequeue; 333 bool ccs; 334 } XHCIRing; 335 336 typedef struct XHCIPort { 337 XHCIState *xhci; 338 uint32_t portsc; 339 uint32_t portnr; 340 USBPort *uport; 341 uint32_t speedmask; 342 char name[16]; 343 MemoryRegion mem; 344 } XHCIPort; 345 346 typedef struct XHCITransfer { 347 XHCIEPContext *epctx; 348 USBPacket packet; 349 QEMUSGList sgl; 350 bool running_async; 351 bool running_retry; 352 bool complete; 353 bool int_req; 354 unsigned int iso_pkts; 355 unsigned int streamid; 356 bool in_xfer; 357 bool iso_xfer; 358 bool timed_xfer; 359 360 unsigned int trb_count; 361 XHCITRB *trbs; 362 363 TRBCCode status; 364 365 unsigned int pkts; 366 unsigned int pktsize; 367 unsigned int cur_pkt; 368 369 uint64_t mfindex_kick; 370 371 QTAILQ_ENTRY(XHCITransfer) next; 372 } XHCITransfer; 373 374 struct XHCIStreamContext { 375 dma_addr_t pctx; 376 unsigned int sct; 377 XHCIRing ring; 378 }; 379 380 struct XHCIEPContext { 381 XHCIState *xhci; 382 unsigned int slotid; 383 unsigned int epid; 384 385 XHCIRing ring; 386 uint32_t xfer_count; 387 QTAILQ_HEAD(, XHCITransfer) transfers; 388 XHCITransfer *retry; 389 EPType type; 390 dma_addr_t pctx; 391 unsigned int max_psize; 392 uint32_t state; 393 uint32_t kick_active; 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 uint32_t max_pstreams_mask; 465 OnOffAuto msi; 466 OnOffAuto msix; 467 468 /* Operational Registers */ 469 uint32_t usbcmd; 470 uint32_t usbsts; 471 uint32_t dnctrl; 472 uint32_t crcr_low; 473 uint32_t crcr_high; 474 uint32_t dcbaap_low; 475 uint32_t dcbaap_high; 476 uint32_t config; 477 478 USBPort uports[MAX(MAXPORTS_2, MAXPORTS_3)]; 479 XHCIPort ports[MAXPORTS]; 480 XHCISlot slots[MAXSLOTS]; 481 uint32_t numports; 482 483 /* Runtime Registers */ 484 int64_t mfindex_start; 485 QEMUTimer *mfwrap_timer; 486 XHCIInterrupter intr[MAXINTRS]; 487 488 XHCIRing cmd_ring; 489 }; 490 491 #define TYPE_XHCI "nec-usb-xhci" 492 493 #define XHCI(obj) \ 494 OBJECT_CHECK(XHCIState, (obj), TYPE_XHCI) 495 496 typedef struct XHCIEvRingSeg { 497 uint32_t addr_low; 498 uint32_t addr_high; 499 uint32_t size; 500 uint32_t rsvd; 501 } XHCIEvRingSeg; 502 503 enum xhci_flags { 504 XHCI_FLAG_SS_FIRST = 1, 505 XHCI_FLAG_FORCE_PCIE_ENDCAP, 506 XHCI_FLAG_ENABLE_STREAMS, 507 }; 508 509 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 510 unsigned int epid, unsigned int streamid); 511 static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid); 512 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 513 unsigned int epid); 514 static void xhci_xfer_report(XHCITransfer *xfer); 515 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v); 516 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v); 517 static USBEndpoint *xhci_epid_to_usbep(XHCIEPContext *epctx); 518 519 static const char *TRBType_names[] = { 520 [TRB_RESERVED] = "TRB_RESERVED", 521 [TR_NORMAL] = "TR_NORMAL", 522 [TR_SETUP] = "TR_SETUP", 523 [TR_DATA] = "TR_DATA", 524 [TR_STATUS] = "TR_STATUS", 525 [TR_ISOCH] = "TR_ISOCH", 526 [TR_LINK] = "TR_LINK", 527 [TR_EVDATA] = "TR_EVDATA", 528 [TR_NOOP] = "TR_NOOP", 529 [CR_ENABLE_SLOT] = "CR_ENABLE_SLOT", 530 [CR_DISABLE_SLOT] = "CR_DISABLE_SLOT", 531 [CR_ADDRESS_DEVICE] = "CR_ADDRESS_DEVICE", 532 [CR_CONFIGURE_ENDPOINT] = "CR_CONFIGURE_ENDPOINT", 533 [CR_EVALUATE_CONTEXT] = "CR_EVALUATE_CONTEXT", 534 [CR_RESET_ENDPOINT] = "CR_RESET_ENDPOINT", 535 [CR_STOP_ENDPOINT] = "CR_STOP_ENDPOINT", 536 [CR_SET_TR_DEQUEUE] = "CR_SET_TR_DEQUEUE", 537 [CR_RESET_DEVICE] = "CR_RESET_DEVICE", 538 [CR_FORCE_EVENT] = "CR_FORCE_EVENT", 539 [CR_NEGOTIATE_BW] = "CR_NEGOTIATE_BW", 540 [CR_SET_LATENCY_TOLERANCE] = "CR_SET_LATENCY_TOLERANCE", 541 [CR_GET_PORT_BANDWIDTH] = "CR_GET_PORT_BANDWIDTH", 542 [CR_FORCE_HEADER] = "CR_FORCE_HEADER", 543 [CR_NOOP] = "CR_NOOP", 544 [ER_TRANSFER] = "ER_TRANSFER", 545 [ER_COMMAND_COMPLETE] = "ER_COMMAND_COMPLETE", 546 [ER_PORT_STATUS_CHANGE] = "ER_PORT_STATUS_CHANGE", 547 [ER_BANDWIDTH_REQUEST] = "ER_BANDWIDTH_REQUEST", 548 [ER_DOORBELL] = "ER_DOORBELL", 549 [ER_HOST_CONTROLLER] = "ER_HOST_CONTROLLER", 550 [ER_DEVICE_NOTIFICATION] = "ER_DEVICE_NOTIFICATION", 551 [ER_MFINDEX_WRAP] = "ER_MFINDEX_WRAP", 552 [CR_VENDOR_VIA_CHALLENGE_RESPONSE] = "CR_VENDOR_VIA_CHALLENGE_RESPONSE", 553 [CR_VENDOR_NEC_FIRMWARE_REVISION] = "CR_VENDOR_NEC_FIRMWARE_REVISION", 554 [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE", 555 }; 556 557 static const char *TRBCCode_names[] = { 558 [CC_INVALID] = "CC_INVALID", 559 [CC_SUCCESS] = "CC_SUCCESS", 560 [CC_DATA_BUFFER_ERROR] = "CC_DATA_BUFFER_ERROR", 561 [CC_BABBLE_DETECTED] = "CC_BABBLE_DETECTED", 562 [CC_USB_TRANSACTION_ERROR] = "CC_USB_TRANSACTION_ERROR", 563 [CC_TRB_ERROR] = "CC_TRB_ERROR", 564 [CC_STALL_ERROR] = "CC_STALL_ERROR", 565 [CC_RESOURCE_ERROR] = "CC_RESOURCE_ERROR", 566 [CC_BANDWIDTH_ERROR] = "CC_BANDWIDTH_ERROR", 567 [CC_NO_SLOTS_ERROR] = "CC_NO_SLOTS_ERROR", 568 [CC_INVALID_STREAM_TYPE_ERROR] = "CC_INVALID_STREAM_TYPE_ERROR", 569 [CC_SLOT_NOT_ENABLED_ERROR] = "CC_SLOT_NOT_ENABLED_ERROR", 570 [CC_EP_NOT_ENABLED_ERROR] = "CC_EP_NOT_ENABLED_ERROR", 571 [CC_SHORT_PACKET] = "CC_SHORT_PACKET", 572 [CC_RING_UNDERRUN] = "CC_RING_UNDERRUN", 573 [CC_RING_OVERRUN] = "CC_RING_OVERRUN", 574 [CC_VF_ER_FULL] = "CC_VF_ER_FULL", 575 [CC_PARAMETER_ERROR] = "CC_PARAMETER_ERROR", 576 [CC_BANDWIDTH_OVERRUN] = "CC_BANDWIDTH_OVERRUN", 577 [CC_CONTEXT_STATE_ERROR] = "CC_CONTEXT_STATE_ERROR", 578 [CC_NO_PING_RESPONSE_ERROR] = "CC_NO_PING_RESPONSE_ERROR", 579 [CC_EVENT_RING_FULL_ERROR] = "CC_EVENT_RING_FULL_ERROR", 580 [CC_INCOMPATIBLE_DEVICE_ERROR] = "CC_INCOMPATIBLE_DEVICE_ERROR", 581 [CC_MISSED_SERVICE_ERROR] = "CC_MISSED_SERVICE_ERROR", 582 [CC_COMMAND_RING_STOPPED] = "CC_COMMAND_RING_STOPPED", 583 [CC_COMMAND_ABORTED] = "CC_COMMAND_ABORTED", 584 [CC_STOPPED] = "CC_STOPPED", 585 [CC_STOPPED_LENGTH_INVALID] = "CC_STOPPED_LENGTH_INVALID", 586 [CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR] 587 = "CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR", 588 [CC_ISOCH_BUFFER_OVERRUN] = "CC_ISOCH_BUFFER_OVERRUN", 589 [CC_EVENT_LOST_ERROR] = "CC_EVENT_LOST_ERROR", 590 [CC_UNDEFINED_ERROR] = "CC_UNDEFINED_ERROR", 591 [CC_INVALID_STREAM_ID_ERROR] = "CC_INVALID_STREAM_ID_ERROR", 592 [CC_SECONDARY_BANDWIDTH_ERROR] = "CC_SECONDARY_BANDWIDTH_ERROR", 593 [CC_SPLIT_TRANSACTION_ERROR] = "CC_SPLIT_TRANSACTION_ERROR", 594 }; 595 596 static const char *ep_state_names[] = { 597 [EP_DISABLED] = "disabled", 598 [EP_RUNNING] = "running", 599 [EP_HALTED] = "halted", 600 [EP_STOPPED] = "stopped", 601 [EP_ERROR] = "error", 602 }; 603 604 static const char *lookup_name(uint32_t index, const char **list, uint32_t llen) 605 { 606 if (index >= llen || list[index] == NULL) { 607 return "???"; 608 } 609 return list[index]; 610 } 611 612 static const char *trb_name(XHCITRB *trb) 613 { 614 return lookup_name(TRB_TYPE(*trb), TRBType_names, 615 ARRAY_SIZE(TRBType_names)); 616 } 617 618 static const char *event_name(XHCIEvent *event) 619 { 620 return lookup_name(event->ccode, TRBCCode_names, 621 ARRAY_SIZE(TRBCCode_names)); 622 } 623 624 static const char *ep_state_name(uint32_t state) 625 { 626 return lookup_name(state, ep_state_names, 627 ARRAY_SIZE(ep_state_names)); 628 } 629 630 static bool xhci_get_flag(XHCIState *xhci, enum xhci_flags bit) 631 { 632 return xhci->flags & (1 << bit); 633 } 634 635 static uint64_t xhci_mfindex_get(XHCIState *xhci) 636 { 637 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 638 return (now - xhci->mfindex_start) / 125000; 639 } 640 641 static void xhci_mfwrap_update(XHCIState *xhci) 642 { 643 const uint32_t bits = USBCMD_RS | USBCMD_EWE; 644 uint32_t mfindex, left; 645 int64_t now; 646 647 if ((xhci->usbcmd & bits) == bits) { 648 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 649 mfindex = ((now - xhci->mfindex_start) / 125000) & 0x3fff; 650 left = 0x4000 - mfindex; 651 timer_mod(xhci->mfwrap_timer, now + left * 125000); 652 } else { 653 timer_del(xhci->mfwrap_timer); 654 } 655 } 656 657 static void xhci_mfwrap_timer(void *opaque) 658 { 659 XHCIState *xhci = opaque; 660 XHCIEvent wrap = { ER_MFINDEX_WRAP, CC_SUCCESS }; 661 662 xhci_event(xhci, &wrap, 0); 663 xhci_mfwrap_update(xhci); 664 } 665 666 static inline dma_addr_t xhci_addr64(uint32_t low, uint32_t high) 667 { 668 if (sizeof(dma_addr_t) == 4) { 669 return low; 670 } else { 671 return low | (((dma_addr_t)high << 16) << 16); 672 } 673 } 674 675 static inline dma_addr_t xhci_mask64(uint64_t addr) 676 { 677 if (sizeof(dma_addr_t) == 4) { 678 return addr & 0xffffffff; 679 } else { 680 return addr; 681 } 682 } 683 684 static inline void xhci_dma_read_u32s(XHCIState *xhci, dma_addr_t addr, 685 uint32_t *buf, size_t len) 686 { 687 int i; 688 689 assert((len % sizeof(uint32_t)) == 0); 690 691 pci_dma_read(PCI_DEVICE(xhci), addr, buf, len); 692 693 for (i = 0; i < (len / sizeof(uint32_t)); i++) { 694 buf[i] = le32_to_cpu(buf[i]); 695 } 696 } 697 698 static inline void xhci_dma_write_u32s(XHCIState *xhci, dma_addr_t addr, 699 uint32_t *buf, size_t len) 700 { 701 int i; 702 uint32_t tmp[5]; 703 uint32_t n = len / sizeof(uint32_t); 704 705 assert((len % sizeof(uint32_t)) == 0); 706 assert(n <= ARRAY_SIZE(tmp)); 707 708 for (i = 0; i < n; i++) { 709 tmp[i] = cpu_to_le32(buf[i]); 710 } 711 pci_dma_write(PCI_DEVICE(xhci), addr, tmp, len); 712 } 713 714 static XHCIPort *xhci_lookup_port(XHCIState *xhci, struct USBPort *uport) 715 { 716 int index; 717 718 if (!uport->dev) { 719 return NULL; 720 } 721 switch (uport->dev->speed) { 722 case USB_SPEED_LOW: 723 case USB_SPEED_FULL: 724 case USB_SPEED_HIGH: 725 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 726 index = uport->index + xhci->numports_3; 727 } else { 728 index = uport->index; 729 } 730 break; 731 case USB_SPEED_SUPER: 732 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 733 index = uport->index; 734 } else { 735 index = uport->index + xhci->numports_2; 736 } 737 break; 738 default: 739 return NULL; 740 } 741 return &xhci->ports[index]; 742 } 743 744 static void xhci_intx_update(XHCIState *xhci) 745 { 746 PCIDevice *pci_dev = PCI_DEVICE(xhci); 747 int level = 0; 748 749 if (msix_enabled(pci_dev) || 750 msi_enabled(pci_dev)) { 751 return; 752 } 753 754 if (xhci->intr[0].iman & IMAN_IP && 755 xhci->intr[0].iman & IMAN_IE && 756 xhci->usbcmd & USBCMD_INTE) { 757 level = 1; 758 } 759 760 trace_usb_xhci_irq_intx(level); 761 pci_set_irq(pci_dev, level); 762 } 763 764 static void xhci_msix_update(XHCIState *xhci, int v) 765 { 766 PCIDevice *pci_dev = PCI_DEVICE(xhci); 767 bool enabled; 768 769 if (!msix_enabled(pci_dev)) { 770 return; 771 } 772 773 enabled = xhci->intr[v].iman & IMAN_IE; 774 if (enabled == xhci->intr[v].msix_used) { 775 return; 776 } 777 778 if (enabled) { 779 trace_usb_xhci_irq_msix_use(v); 780 msix_vector_use(pci_dev, v); 781 xhci->intr[v].msix_used = true; 782 } else { 783 trace_usb_xhci_irq_msix_unuse(v); 784 msix_vector_unuse(pci_dev, v); 785 xhci->intr[v].msix_used = false; 786 } 787 } 788 789 static void xhci_intr_raise(XHCIState *xhci, int v) 790 { 791 PCIDevice *pci_dev = PCI_DEVICE(xhci); 792 793 xhci->intr[v].erdp_low |= ERDP_EHB; 794 xhci->intr[v].iman |= IMAN_IP; 795 xhci->usbsts |= USBSTS_EINT; 796 797 if (!(xhci->intr[v].iman & IMAN_IE)) { 798 return; 799 } 800 801 if (!(xhci->usbcmd & USBCMD_INTE)) { 802 return; 803 } 804 805 if (msix_enabled(pci_dev)) { 806 trace_usb_xhci_irq_msix(v); 807 msix_notify(pci_dev, v); 808 return; 809 } 810 811 if (msi_enabled(pci_dev)) { 812 trace_usb_xhci_irq_msi(v); 813 msi_notify(pci_dev, v); 814 return; 815 } 816 817 if (v == 0) { 818 trace_usb_xhci_irq_intx(1); 819 pci_irq_assert(pci_dev); 820 } 821 } 822 823 static inline int xhci_running(XHCIState *xhci) 824 { 825 return !(xhci->usbsts & USBSTS_HCH) && !xhci->intr[0].er_full; 826 } 827 828 static void xhci_die(XHCIState *xhci) 829 { 830 xhci->usbsts |= USBSTS_HCE; 831 DPRINTF("xhci: asserted controller error\n"); 832 } 833 834 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v) 835 { 836 PCIDevice *pci_dev = PCI_DEVICE(xhci); 837 XHCIInterrupter *intr = &xhci->intr[v]; 838 XHCITRB ev_trb; 839 dma_addr_t addr; 840 841 ev_trb.parameter = cpu_to_le64(event->ptr); 842 ev_trb.status = cpu_to_le32(event->length | (event->ccode << 24)); 843 ev_trb.control = (event->slotid << 24) | (event->epid << 16) | 844 event->flags | (event->type << TRB_TYPE_SHIFT); 845 if (intr->er_pcs) { 846 ev_trb.control |= TRB_C; 847 } 848 ev_trb.control = cpu_to_le32(ev_trb.control); 849 850 trace_usb_xhci_queue_event(v, intr->er_ep_idx, trb_name(&ev_trb), 851 event_name(event), ev_trb.parameter, 852 ev_trb.status, ev_trb.control); 853 854 addr = intr->er_start + TRB_SIZE*intr->er_ep_idx; 855 pci_dma_write(pci_dev, addr, &ev_trb, TRB_SIZE); 856 857 intr->er_ep_idx++; 858 if (intr->er_ep_idx >= intr->er_size) { 859 intr->er_ep_idx = 0; 860 intr->er_pcs = !intr->er_pcs; 861 } 862 } 863 864 static void xhci_events_update(XHCIState *xhci, int v) 865 { 866 XHCIInterrupter *intr = &xhci->intr[v]; 867 dma_addr_t erdp; 868 unsigned int dp_idx; 869 bool do_irq = 0; 870 871 if (xhci->usbsts & USBSTS_HCH) { 872 return; 873 } 874 875 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 876 if (erdp < intr->er_start || 877 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { 878 DPRINTF("xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); 879 DPRINTF("xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", 880 v, intr->er_start, intr->er_size); 881 xhci_die(xhci); 882 return; 883 } 884 dp_idx = (erdp - intr->er_start) / TRB_SIZE; 885 assert(dp_idx < intr->er_size); 886 887 /* NEC didn't read section 4.9.4 of the spec (v1.0 p139 top Note) and thus 888 * deadlocks when the ER is full. Hack it by holding off events until 889 * the driver decides to free at least half of the ring */ 890 if (intr->er_full) { 891 int er_free = dp_idx - intr->er_ep_idx; 892 if (er_free <= 0) { 893 er_free += intr->er_size; 894 } 895 if (er_free < (intr->er_size/2)) { 896 DPRINTF("xhci_events_update(): event ring still " 897 "more than half full (hack)\n"); 898 return; 899 } 900 } 901 902 while (intr->ev_buffer_put != intr->ev_buffer_get) { 903 assert(intr->er_full); 904 if (((intr->er_ep_idx+1) % intr->er_size) == dp_idx) { 905 DPRINTF("xhci_events_update(): event ring full again\n"); 906 #ifndef ER_FULL_HACK 907 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; 908 xhci_write_event(xhci, &full, v); 909 #endif 910 do_irq = 1; 911 break; 912 } 913 XHCIEvent *event = &intr->ev_buffer[intr->ev_buffer_get]; 914 xhci_write_event(xhci, event, v); 915 intr->ev_buffer_get++; 916 do_irq = 1; 917 if (intr->ev_buffer_get == EV_QUEUE) { 918 intr->ev_buffer_get = 0; 919 } 920 } 921 922 if (do_irq) { 923 xhci_intr_raise(xhci, v); 924 } 925 926 if (intr->er_full && intr->ev_buffer_put == intr->ev_buffer_get) { 927 DPRINTF("xhci_events_update(): event ring no longer full\n"); 928 intr->er_full = 0; 929 } 930 } 931 932 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v) 933 { 934 XHCIInterrupter *intr; 935 dma_addr_t erdp; 936 unsigned int dp_idx; 937 938 if (v >= xhci->numintrs) { 939 DPRINTF("intr nr out of range (%d >= %d)\n", v, xhci->numintrs); 940 return; 941 } 942 intr = &xhci->intr[v]; 943 944 if (intr->er_full) { 945 DPRINTF("xhci_event(): ER full, queueing\n"); 946 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { 947 DPRINTF("xhci: event queue full, dropping event!\n"); 948 return; 949 } 950 intr->ev_buffer[intr->ev_buffer_put++] = *event; 951 if (intr->ev_buffer_put == EV_QUEUE) { 952 intr->ev_buffer_put = 0; 953 } 954 return; 955 } 956 957 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 958 if (erdp < intr->er_start || 959 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { 960 DPRINTF("xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); 961 DPRINTF("xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", 962 v, intr->er_start, intr->er_size); 963 xhci_die(xhci); 964 return; 965 } 966 967 dp_idx = (erdp - intr->er_start) / TRB_SIZE; 968 assert(dp_idx < intr->er_size); 969 970 if ((intr->er_ep_idx+1) % intr->er_size == dp_idx) { 971 DPRINTF("xhci_event(): ER full, queueing\n"); 972 #ifndef ER_FULL_HACK 973 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; 974 xhci_write_event(xhci, &full); 975 #endif 976 intr->er_full = 1; 977 if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { 978 DPRINTF("xhci: event queue full, dropping event!\n"); 979 return; 980 } 981 intr->ev_buffer[intr->ev_buffer_put++] = *event; 982 if (intr->ev_buffer_put == EV_QUEUE) { 983 intr->ev_buffer_put = 0; 984 } 985 } else { 986 xhci_write_event(xhci, event, v); 987 } 988 989 xhci_intr_raise(xhci, v); 990 } 991 992 static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring, 993 dma_addr_t base) 994 { 995 ring->dequeue = base; 996 ring->ccs = 1; 997 } 998 999 static TRBType xhci_ring_fetch(XHCIState *xhci, XHCIRing *ring, XHCITRB *trb, 1000 dma_addr_t *addr) 1001 { 1002 PCIDevice *pci_dev = PCI_DEVICE(xhci); 1003 uint32_t link_cnt = 0; 1004 1005 while (1) { 1006 TRBType type; 1007 pci_dma_read(pci_dev, ring->dequeue, trb, TRB_SIZE); 1008 trb->addr = ring->dequeue; 1009 trb->ccs = ring->ccs; 1010 le64_to_cpus(&trb->parameter); 1011 le32_to_cpus(&trb->status); 1012 le32_to_cpus(&trb->control); 1013 1014 trace_usb_xhci_fetch_trb(ring->dequeue, trb_name(trb), 1015 trb->parameter, trb->status, trb->control); 1016 1017 if ((trb->control & TRB_C) != ring->ccs) { 1018 return 0; 1019 } 1020 1021 type = TRB_TYPE(*trb); 1022 1023 if (type != TR_LINK) { 1024 if (addr) { 1025 *addr = ring->dequeue; 1026 } 1027 ring->dequeue += TRB_SIZE; 1028 return type; 1029 } else { 1030 if (++link_cnt > TRB_LINK_LIMIT) { 1031 return 0; 1032 } 1033 ring->dequeue = xhci_mask64(trb->parameter); 1034 if (trb->control & TRB_LK_TC) { 1035 ring->ccs = !ring->ccs; 1036 } 1037 } 1038 } 1039 } 1040 1041 static int xhci_ring_chain_length(XHCIState *xhci, const XHCIRing *ring) 1042 { 1043 PCIDevice *pci_dev = PCI_DEVICE(xhci); 1044 XHCITRB trb; 1045 int length = 0; 1046 dma_addr_t dequeue = ring->dequeue; 1047 bool ccs = ring->ccs; 1048 /* hack to bundle together the two/three TDs that make a setup transfer */ 1049 bool control_td_set = 0; 1050 uint32_t link_cnt = 0; 1051 1052 while (1) { 1053 TRBType type; 1054 pci_dma_read(pci_dev, dequeue, &trb, TRB_SIZE); 1055 le64_to_cpus(&trb.parameter); 1056 le32_to_cpus(&trb.status); 1057 le32_to_cpus(&trb.control); 1058 1059 if ((trb.control & TRB_C) != ccs) { 1060 return -length; 1061 } 1062 1063 type = TRB_TYPE(trb); 1064 1065 if (type == TR_LINK) { 1066 if (++link_cnt > TRB_LINK_LIMIT) { 1067 return -length; 1068 } 1069 dequeue = xhci_mask64(trb.parameter); 1070 if (trb.control & TRB_LK_TC) { 1071 ccs = !ccs; 1072 } 1073 continue; 1074 } 1075 1076 length += 1; 1077 dequeue += TRB_SIZE; 1078 1079 if (type == TR_SETUP) { 1080 control_td_set = 1; 1081 } else if (type == TR_STATUS) { 1082 control_td_set = 0; 1083 } 1084 1085 if (!control_td_set && !(trb.control & TRB_TR_CH)) { 1086 return length; 1087 } 1088 } 1089 } 1090 1091 static void xhci_er_reset(XHCIState *xhci, int v) 1092 { 1093 XHCIInterrupter *intr = &xhci->intr[v]; 1094 XHCIEvRingSeg seg; 1095 1096 if (intr->erstsz == 0) { 1097 /* disabled */ 1098 intr->er_start = 0; 1099 intr->er_size = 0; 1100 return; 1101 } 1102 /* cache the (sole) event ring segment location */ 1103 if (intr->erstsz != 1) { 1104 DPRINTF("xhci: invalid value for ERSTSZ: %d\n", intr->erstsz); 1105 xhci_die(xhci); 1106 return; 1107 } 1108 dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); 1109 pci_dma_read(PCI_DEVICE(xhci), erstba, &seg, sizeof(seg)); 1110 le32_to_cpus(&seg.addr_low); 1111 le32_to_cpus(&seg.addr_high); 1112 le32_to_cpus(&seg.size); 1113 if (seg.size < 16 || seg.size > 4096) { 1114 DPRINTF("xhci: invalid value for segment size: %d\n", seg.size); 1115 xhci_die(xhci); 1116 return; 1117 } 1118 intr->er_start = xhci_addr64(seg.addr_low, seg.addr_high); 1119 intr->er_size = seg.size; 1120 1121 intr->er_ep_idx = 0; 1122 intr->er_pcs = 1; 1123 intr->er_full = 0; 1124 1125 DPRINTF("xhci: event ring[%d]:" DMA_ADDR_FMT " [%d]\n", 1126 v, intr->er_start, intr->er_size); 1127 } 1128 1129 static void xhci_run(XHCIState *xhci) 1130 { 1131 trace_usb_xhci_run(); 1132 xhci->usbsts &= ~USBSTS_HCH; 1133 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 1134 } 1135 1136 static void xhci_stop(XHCIState *xhci) 1137 { 1138 trace_usb_xhci_stop(); 1139 xhci->usbsts |= USBSTS_HCH; 1140 xhci->crcr_low &= ~CRCR_CRR; 1141 } 1142 1143 static XHCIStreamContext *xhci_alloc_stream_contexts(unsigned count, 1144 dma_addr_t base) 1145 { 1146 XHCIStreamContext *stctx; 1147 unsigned int i; 1148 1149 stctx = g_new0(XHCIStreamContext, count); 1150 for (i = 0; i < count; i++) { 1151 stctx[i].pctx = base + i * 16; 1152 stctx[i].sct = -1; 1153 } 1154 return stctx; 1155 } 1156 1157 static void xhci_reset_streams(XHCIEPContext *epctx) 1158 { 1159 unsigned int i; 1160 1161 for (i = 0; i < epctx->nr_pstreams; i++) { 1162 epctx->pstreams[i].sct = -1; 1163 } 1164 } 1165 1166 static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) 1167 { 1168 assert(epctx->pstreams == NULL); 1169 epctx->nr_pstreams = 2 << epctx->max_pstreams; 1170 epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); 1171 } 1172 1173 static void xhci_free_streams(XHCIEPContext *epctx) 1174 { 1175 assert(epctx->pstreams != NULL); 1176 1177 g_free(epctx->pstreams); 1178 epctx->pstreams = NULL; 1179 epctx->nr_pstreams = 0; 1180 } 1181 1182 static int xhci_epmask_to_eps_with_streams(XHCIState *xhci, 1183 unsigned int slotid, 1184 uint32_t epmask, 1185 XHCIEPContext **epctxs, 1186 USBEndpoint **eps) 1187 { 1188 XHCISlot *slot; 1189 XHCIEPContext *epctx; 1190 USBEndpoint *ep; 1191 int i, j; 1192 1193 assert(slotid >= 1 && slotid <= xhci->numslots); 1194 1195 slot = &xhci->slots[slotid - 1]; 1196 1197 for (i = 2, j = 0; i <= 31; i++) { 1198 if (!(epmask & (1u << i))) { 1199 continue; 1200 } 1201 1202 epctx = slot->eps[i - 1]; 1203 ep = xhci_epid_to_usbep(epctx); 1204 if (!epctx || !epctx->nr_pstreams || !ep) { 1205 continue; 1206 } 1207 1208 if (epctxs) { 1209 epctxs[j] = epctx; 1210 } 1211 eps[j++] = ep; 1212 } 1213 return j; 1214 } 1215 1216 static void xhci_free_device_streams(XHCIState *xhci, unsigned int slotid, 1217 uint32_t epmask) 1218 { 1219 USBEndpoint *eps[30]; 1220 int nr_eps; 1221 1222 nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, NULL, eps); 1223 if (nr_eps) { 1224 usb_device_free_streams(eps[0]->dev, eps, nr_eps); 1225 } 1226 } 1227 1228 static TRBCCode xhci_alloc_device_streams(XHCIState *xhci, unsigned int slotid, 1229 uint32_t epmask) 1230 { 1231 XHCIEPContext *epctxs[30]; 1232 USBEndpoint *eps[30]; 1233 int i, r, nr_eps, req_nr_streams, dev_max_streams; 1234 1235 nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, epctxs, 1236 eps); 1237 if (nr_eps == 0) { 1238 return CC_SUCCESS; 1239 } 1240 1241 req_nr_streams = epctxs[0]->nr_pstreams; 1242 dev_max_streams = eps[0]->max_streams; 1243 1244 for (i = 1; i < nr_eps; i++) { 1245 /* 1246 * HdG: I don't expect these to ever trigger, but if they do we need 1247 * to come up with another solution, ie group identical endpoints 1248 * together and make an usb_device_alloc_streams call per group. 1249 */ 1250 if (epctxs[i]->nr_pstreams != req_nr_streams) { 1251 FIXME("guest streams config not identical for all eps"); 1252 return CC_RESOURCE_ERROR; 1253 } 1254 if (eps[i]->max_streams != dev_max_streams) { 1255 FIXME("device streams config not identical for all eps"); 1256 return CC_RESOURCE_ERROR; 1257 } 1258 } 1259 1260 /* 1261 * max-streams in both the device descriptor and in the controller is a 1262 * power of 2. But stream id 0 is reserved, so if a device can do up to 4 1263 * streams the guest will ask for 5 rounded up to the next power of 2 which 1264 * becomes 8. For emulated devices usb_device_alloc_streams is a nop. 1265 * 1266 * For redirected devices however this is an issue, as there we must ask 1267 * the real xhci controller to alloc streams, and the host driver for the 1268 * real xhci controller will likely disallow allocating more streams then 1269 * the device can handle. 1270 * 1271 * So we limit the requested nr_streams to the maximum number the device 1272 * can handle. 1273 */ 1274 if (req_nr_streams > dev_max_streams) { 1275 req_nr_streams = dev_max_streams; 1276 } 1277 1278 r = usb_device_alloc_streams(eps[0]->dev, eps, nr_eps, req_nr_streams); 1279 if (r != 0) { 1280 DPRINTF("xhci: alloc streams failed\n"); 1281 return CC_RESOURCE_ERROR; 1282 } 1283 1284 return CC_SUCCESS; 1285 } 1286 1287 static XHCIStreamContext *xhci_find_stream(XHCIEPContext *epctx, 1288 unsigned int streamid, 1289 uint32_t *cc_error) 1290 { 1291 XHCIStreamContext *sctx; 1292 dma_addr_t base; 1293 uint32_t ctx[2], sct; 1294 1295 assert(streamid != 0); 1296 if (epctx->lsa) { 1297 if (streamid >= epctx->nr_pstreams) { 1298 *cc_error = CC_INVALID_STREAM_ID_ERROR; 1299 return NULL; 1300 } 1301 sctx = epctx->pstreams + streamid; 1302 } else { 1303 FIXME("secondary streams not implemented yet"); 1304 } 1305 1306 if (sctx->sct == -1) { 1307 xhci_dma_read_u32s(epctx->xhci, sctx->pctx, ctx, sizeof(ctx)); 1308 sct = (ctx[0] >> 1) & 0x07; 1309 if (epctx->lsa && sct != 1) { 1310 *cc_error = CC_INVALID_STREAM_TYPE_ERROR; 1311 return NULL; 1312 } 1313 sctx->sct = sct; 1314 base = xhci_addr64(ctx[0] & ~0xf, ctx[1]); 1315 xhci_ring_init(epctx->xhci, &sctx->ring, base); 1316 } 1317 return sctx; 1318 } 1319 1320 static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, 1321 XHCIStreamContext *sctx, uint32_t state) 1322 { 1323 XHCIRing *ring = NULL; 1324 uint32_t ctx[5]; 1325 uint32_t ctx2[2]; 1326 1327 xhci_dma_read_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1328 ctx[0] &= ~EP_STATE_MASK; 1329 ctx[0] |= state; 1330 1331 /* update ring dequeue ptr */ 1332 if (epctx->nr_pstreams) { 1333 if (sctx != NULL) { 1334 ring = &sctx->ring; 1335 xhci_dma_read_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1336 ctx2[0] &= 0xe; 1337 ctx2[0] |= sctx->ring.dequeue | sctx->ring.ccs; 1338 ctx2[1] = (sctx->ring.dequeue >> 16) >> 16; 1339 xhci_dma_write_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1340 } 1341 } else { 1342 ring = &epctx->ring; 1343 } 1344 if (ring) { 1345 ctx[2] = ring->dequeue | ring->ccs; 1346 ctx[3] = (ring->dequeue >> 16) >> 16; 1347 1348 DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", 1349 epctx->pctx, state, ctx[3], ctx[2]); 1350 } 1351 1352 xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1353 if (epctx->state != state) { 1354 trace_usb_xhci_ep_state(epctx->slotid, epctx->epid, 1355 ep_state_name(epctx->state), 1356 ep_state_name(state)); 1357 } 1358 epctx->state = state; 1359 } 1360 1361 static void xhci_ep_kick_timer(void *opaque) 1362 { 1363 XHCIEPContext *epctx = opaque; 1364 xhci_kick_epctx(epctx, 0); 1365 } 1366 1367 static XHCIEPContext *xhci_alloc_epctx(XHCIState *xhci, 1368 unsigned int slotid, 1369 unsigned int epid) 1370 { 1371 XHCIEPContext *epctx; 1372 1373 epctx = g_new0(XHCIEPContext, 1); 1374 epctx->xhci = xhci; 1375 epctx->slotid = slotid; 1376 epctx->epid = epid; 1377 1378 QTAILQ_INIT(&epctx->transfers); 1379 epctx->kick_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_ep_kick_timer, epctx); 1380 1381 return epctx; 1382 } 1383 1384 static void xhci_init_epctx(XHCIEPContext *epctx, 1385 dma_addr_t pctx, uint32_t *ctx) 1386 { 1387 dma_addr_t dequeue; 1388 1389 dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]); 1390 1391 epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK; 1392 epctx->pctx = pctx; 1393 epctx->max_psize = ctx[1]>>16; 1394 epctx->max_psize *= 1+((ctx[1]>>8)&0xff); 1395 epctx->max_pstreams = (ctx[0] >> 10) & epctx->xhci->max_pstreams_mask; 1396 epctx->lsa = (ctx[0] >> 15) & 1; 1397 if (epctx->max_pstreams) { 1398 xhci_alloc_streams(epctx, dequeue); 1399 } else { 1400 xhci_ring_init(epctx->xhci, &epctx->ring, dequeue); 1401 epctx->ring.ccs = ctx[2] & 1; 1402 } 1403 1404 epctx->interval = 1 << ((ctx[0] >> 16) & 0xff); 1405 } 1406 1407 static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, 1408 unsigned int epid, dma_addr_t pctx, 1409 uint32_t *ctx) 1410 { 1411 XHCISlot *slot; 1412 XHCIEPContext *epctx; 1413 1414 trace_usb_xhci_ep_enable(slotid, epid); 1415 assert(slotid >= 1 && slotid <= xhci->numslots); 1416 assert(epid >= 1 && epid <= 31); 1417 1418 slot = &xhci->slots[slotid-1]; 1419 if (slot->eps[epid-1]) { 1420 xhci_disable_ep(xhci, slotid, epid); 1421 } 1422 1423 epctx = xhci_alloc_epctx(xhci, slotid, epid); 1424 slot->eps[epid-1] = epctx; 1425 xhci_init_epctx(epctx, pctx, ctx); 1426 1427 DPRINTF("xhci: endpoint %d.%d type is %d, max transaction (burst) " 1428 "size is %d\n", epid/2, epid%2, epctx->type, epctx->max_psize); 1429 1430 epctx->mfindex_last = 0; 1431 1432 epctx->state = EP_RUNNING; 1433 ctx[0] &= ~EP_STATE_MASK; 1434 ctx[0] |= EP_RUNNING; 1435 1436 return CC_SUCCESS; 1437 } 1438 1439 static XHCITransfer *xhci_ep_alloc_xfer(XHCIEPContext *epctx, 1440 uint32_t length) 1441 { 1442 uint32_t limit = epctx->nr_pstreams + 16; 1443 XHCITransfer *xfer; 1444 1445 if (epctx->xfer_count >= limit) { 1446 return NULL; 1447 } 1448 1449 xfer = g_new0(XHCITransfer, 1); 1450 xfer->epctx = epctx; 1451 xfer->trbs = g_new(XHCITRB, length); 1452 xfer->trb_count = length; 1453 usb_packet_init(&xfer->packet); 1454 1455 QTAILQ_INSERT_TAIL(&epctx->transfers, xfer, next); 1456 epctx->xfer_count++; 1457 1458 return xfer; 1459 } 1460 1461 static void xhci_ep_free_xfer(XHCITransfer *xfer) 1462 { 1463 QTAILQ_REMOVE(&xfer->epctx->transfers, xfer, next); 1464 xfer->epctx->xfer_count--; 1465 1466 usb_packet_cleanup(&xfer->packet); 1467 g_free(xfer->trbs); 1468 g_free(xfer); 1469 } 1470 1471 static int xhci_ep_nuke_one_xfer(XHCITransfer *t, TRBCCode report) 1472 { 1473 int killed = 0; 1474 1475 if (report && (t->running_async || t->running_retry)) { 1476 t->status = report; 1477 xhci_xfer_report(t); 1478 } 1479 1480 if (t->running_async) { 1481 usb_cancel_packet(&t->packet); 1482 t->running_async = 0; 1483 killed = 1; 1484 } 1485 if (t->running_retry) { 1486 if (t->epctx) { 1487 t->epctx->retry = NULL; 1488 timer_del(t->epctx->kick_timer); 1489 } 1490 t->running_retry = 0; 1491 killed = 1; 1492 } 1493 g_free(t->trbs); 1494 1495 t->trbs = NULL; 1496 t->trb_count = 0; 1497 1498 return killed; 1499 } 1500 1501 static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid, 1502 unsigned int epid, TRBCCode report) 1503 { 1504 XHCISlot *slot; 1505 XHCIEPContext *epctx; 1506 XHCITransfer *xfer; 1507 int killed = 0; 1508 USBEndpoint *ep = NULL; 1509 assert(slotid >= 1 && slotid <= xhci->numslots); 1510 assert(epid >= 1 && epid <= 31); 1511 1512 DPRINTF("xhci_ep_nuke_xfers(%d, %d)\n", slotid, epid); 1513 1514 slot = &xhci->slots[slotid-1]; 1515 1516 if (!slot->eps[epid-1]) { 1517 return 0; 1518 } 1519 1520 epctx = slot->eps[epid-1]; 1521 1522 for (;;) { 1523 xfer = QTAILQ_FIRST(&epctx->transfers); 1524 if (xfer == NULL) { 1525 break; 1526 } 1527 killed += xhci_ep_nuke_one_xfer(xfer, report); 1528 if (killed) { 1529 report = 0; /* Only report once */ 1530 } 1531 xhci_ep_free_xfer(xfer); 1532 } 1533 1534 ep = xhci_epid_to_usbep(epctx); 1535 if (ep) { 1536 usb_device_ep_stopped(ep->dev, ep); 1537 } 1538 return killed; 1539 } 1540 1541 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 1542 unsigned int epid) 1543 { 1544 XHCISlot *slot; 1545 XHCIEPContext *epctx; 1546 1547 trace_usb_xhci_ep_disable(slotid, epid); 1548 assert(slotid >= 1 && slotid <= xhci->numslots); 1549 assert(epid >= 1 && epid <= 31); 1550 1551 slot = &xhci->slots[slotid-1]; 1552 1553 if (!slot->eps[epid-1]) { 1554 DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid); 1555 return CC_SUCCESS; 1556 } 1557 1558 xhci_ep_nuke_xfers(xhci, slotid, epid, 0); 1559 1560 epctx = slot->eps[epid-1]; 1561 1562 if (epctx->nr_pstreams) { 1563 xhci_free_streams(epctx); 1564 } 1565 1566 /* only touch guest RAM if we're not resetting the HC */ 1567 if (xhci->dcbaap_low || xhci->dcbaap_high) { 1568 xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED); 1569 } 1570 1571 timer_free(epctx->kick_timer); 1572 g_free(epctx); 1573 slot->eps[epid-1] = NULL; 1574 1575 return CC_SUCCESS; 1576 } 1577 1578 static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid, 1579 unsigned int epid) 1580 { 1581 XHCISlot *slot; 1582 XHCIEPContext *epctx; 1583 1584 trace_usb_xhci_ep_stop(slotid, epid); 1585 assert(slotid >= 1 && slotid <= xhci->numslots); 1586 1587 if (epid < 1 || epid > 31) { 1588 DPRINTF("xhci: bad ep %d\n", epid); 1589 return CC_TRB_ERROR; 1590 } 1591 1592 slot = &xhci->slots[slotid-1]; 1593 1594 if (!slot->eps[epid-1]) { 1595 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1596 return CC_EP_NOT_ENABLED_ERROR; 1597 } 1598 1599 if (xhci_ep_nuke_xfers(xhci, slotid, epid, CC_STOPPED) > 0) { 1600 DPRINTF("xhci: FIXME: endpoint stopped w/ xfers running, " 1601 "data might be lost\n"); 1602 } 1603 1604 epctx = slot->eps[epid-1]; 1605 1606 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1607 1608 if (epctx->nr_pstreams) { 1609 xhci_reset_streams(epctx); 1610 } 1611 1612 return CC_SUCCESS; 1613 } 1614 1615 static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid, 1616 unsigned int epid) 1617 { 1618 XHCISlot *slot; 1619 XHCIEPContext *epctx; 1620 1621 trace_usb_xhci_ep_reset(slotid, epid); 1622 assert(slotid >= 1 && slotid <= xhci->numslots); 1623 1624 if (epid < 1 || epid > 31) { 1625 DPRINTF("xhci: bad ep %d\n", epid); 1626 return CC_TRB_ERROR; 1627 } 1628 1629 slot = &xhci->slots[slotid-1]; 1630 1631 if (!slot->eps[epid-1]) { 1632 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1633 return CC_EP_NOT_ENABLED_ERROR; 1634 } 1635 1636 epctx = slot->eps[epid-1]; 1637 1638 if (epctx->state != EP_HALTED) { 1639 DPRINTF("xhci: reset EP while EP %d not halted (%d)\n", 1640 epid, epctx->state); 1641 return CC_CONTEXT_STATE_ERROR; 1642 } 1643 1644 if (xhci_ep_nuke_xfers(xhci, slotid, epid, 0) > 0) { 1645 DPRINTF("xhci: FIXME: endpoint reset w/ xfers running, " 1646 "data might be lost\n"); 1647 } 1648 1649 if (!xhci->slots[slotid-1].uport || 1650 !xhci->slots[slotid-1].uport->dev || 1651 !xhci->slots[slotid-1].uport->dev->attached) { 1652 return CC_USB_TRANSACTION_ERROR; 1653 } 1654 1655 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1656 1657 if (epctx->nr_pstreams) { 1658 xhci_reset_streams(epctx); 1659 } 1660 1661 return CC_SUCCESS; 1662 } 1663 1664 static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, 1665 unsigned int epid, unsigned int streamid, 1666 uint64_t pdequeue) 1667 { 1668 XHCISlot *slot; 1669 XHCIEPContext *epctx; 1670 XHCIStreamContext *sctx; 1671 dma_addr_t dequeue; 1672 1673 assert(slotid >= 1 && slotid <= xhci->numslots); 1674 1675 if (epid < 1 || epid > 31) { 1676 DPRINTF("xhci: bad ep %d\n", epid); 1677 return CC_TRB_ERROR; 1678 } 1679 1680 trace_usb_xhci_ep_set_dequeue(slotid, epid, streamid, pdequeue); 1681 dequeue = xhci_mask64(pdequeue); 1682 1683 slot = &xhci->slots[slotid-1]; 1684 1685 if (!slot->eps[epid-1]) { 1686 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1687 return CC_EP_NOT_ENABLED_ERROR; 1688 } 1689 1690 epctx = slot->eps[epid-1]; 1691 1692 if (epctx->state != EP_STOPPED) { 1693 DPRINTF("xhci: set EP dequeue pointer while EP %d not stopped\n", epid); 1694 return CC_CONTEXT_STATE_ERROR; 1695 } 1696 1697 if (epctx->nr_pstreams) { 1698 uint32_t err; 1699 sctx = xhci_find_stream(epctx, streamid, &err); 1700 if (sctx == NULL) { 1701 return err; 1702 } 1703 xhci_ring_init(xhci, &sctx->ring, dequeue & ~0xf); 1704 sctx->ring.ccs = dequeue & 1; 1705 } else { 1706 sctx = NULL; 1707 xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); 1708 epctx->ring.ccs = dequeue & 1; 1709 } 1710 1711 xhci_set_ep_state(xhci, epctx, sctx, EP_STOPPED); 1712 1713 return CC_SUCCESS; 1714 } 1715 1716 static int xhci_xfer_create_sgl(XHCITransfer *xfer, int in_xfer) 1717 { 1718 XHCIState *xhci = xfer->epctx->xhci; 1719 int i; 1720 1721 xfer->int_req = false; 1722 pci_dma_sglist_init(&xfer->sgl, PCI_DEVICE(xhci), xfer->trb_count); 1723 for (i = 0; i < xfer->trb_count; i++) { 1724 XHCITRB *trb = &xfer->trbs[i]; 1725 dma_addr_t addr; 1726 unsigned int chunk = 0; 1727 1728 if (trb->control & TRB_TR_IOC) { 1729 xfer->int_req = true; 1730 } 1731 1732 switch (TRB_TYPE(*trb)) { 1733 case TR_DATA: 1734 if ((!(trb->control & TRB_TR_DIR)) != (!in_xfer)) { 1735 DPRINTF("xhci: data direction mismatch for TR_DATA\n"); 1736 goto err; 1737 } 1738 /* fallthrough */ 1739 case TR_NORMAL: 1740 case TR_ISOCH: 1741 addr = xhci_mask64(trb->parameter); 1742 chunk = trb->status & 0x1ffff; 1743 if (trb->control & TRB_TR_IDT) { 1744 if (chunk > 8 || in_xfer) { 1745 DPRINTF("xhci: invalid immediate data TRB\n"); 1746 goto err; 1747 } 1748 qemu_sglist_add(&xfer->sgl, trb->addr, chunk); 1749 } else { 1750 qemu_sglist_add(&xfer->sgl, addr, chunk); 1751 } 1752 break; 1753 } 1754 } 1755 1756 return 0; 1757 1758 err: 1759 qemu_sglist_destroy(&xfer->sgl); 1760 xhci_die(xhci); 1761 return -1; 1762 } 1763 1764 static void xhci_xfer_unmap(XHCITransfer *xfer) 1765 { 1766 usb_packet_unmap(&xfer->packet, &xfer->sgl); 1767 qemu_sglist_destroy(&xfer->sgl); 1768 } 1769 1770 static void xhci_xfer_report(XHCITransfer *xfer) 1771 { 1772 uint32_t edtla = 0; 1773 unsigned int left; 1774 bool reported = 0; 1775 bool shortpkt = 0; 1776 XHCIEvent event = {ER_TRANSFER, CC_SUCCESS}; 1777 XHCIState *xhci = xfer->epctx->xhci; 1778 int i; 1779 1780 left = xfer->packet.actual_length; 1781 1782 for (i = 0; i < xfer->trb_count; i++) { 1783 XHCITRB *trb = &xfer->trbs[i]; 1784 unsigned int chunk = 0; 1785 1786 switch (TRB_TYPE(*trb)) { 1787 case TR_SETUP: 1788 chunk = trb->status & 0x1ffff; 1789 if (chunk > 8) { 1790 chunk = 8; 1791 } 1792 break; 1793 case TR_DATA: 1794 case TR_NORMAL: 1795 case TR_ISOCH: 1796 chunk = trb->status & 0x1ffff; 1797 if (chunk > left) { 1798 chunk = left; 1799 if (xfer->status == CC_SUCCESS) { 1800 shortpkt = 1; 1801 } 1802 } 1803 left -= chunk; 1804 edtla += chunk; 1805 break; 1806 case TR_STATUS: 1807 reported = 0; 1808 shortpkt = 0; 1809 break; 1810 } 1811 1812 if (!reported && ((trb->control & TRB_TR_IOC) || 1813 (shortpkt && (trb->control & TRB_TR_ISP)) || 1814 (xfer->status != CC_SUCCESS && left == 0))) { 1815 event.slotid = xfer->epctx->slotid; 1816 event.epid = xfer->epctx->epid; 1817 event.length = (trb->status & 0x1ffff) - chunk; 1818 event.flags = 0; 1819 event.ptr = trb->addr; 1820 if (xfer->status == CC_SUCCESS) { 1821 event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS; 1822 } else { 1823 event.ccode = xfer->status; 1824 } 1825 if (TRB_TYPE(*trb) == TR_EVDATA) { 1826 event.ptr = trb->parameter; 1827 event.flags |= TRB_EV_ED; 1828 event.length = edtla & 0xffffff; 1829 DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length); 1830 edtla = 0; 1831 } 1832 xhci_event(xhci, &event, TRB_INTR(*trb)); 1833 reported = 1; 1834 if (xfer->status != CC_SUCCESS) { 1835 return; 1836 } 1837 } 1838 1839 switch (TRB_TYPE(*trb)) { 1840 case TR_SETUP: 1841 reported = 0; 1842 shortpkt = 0; 1843 break; 1844 } 1845 1846 } 1847 } 1848 1849 static void xhci_stall_ep(XHCITransfer *xfer) 1850 { 1851 XHCIEPContext *epctx = xfer->epctx; 1852 XHCIState *xhci = epctx->xhci; 1853 uint32_t err; 1854 XHCIStreamContext *sctx; 1855 1856 if (epctx->nr_pstreams) { 1857 sctx = xhci_find_stream(epctx, xfer->streamid, &err); 1858 if (sctx == NULL) { 1859 return; 1860 } 1861 sctx->ring.dequeue = xfer->trbs[0].addr; 1862 sctx->ring.ccs = xfer->trbs[0].ccs; 1863 xhci_set_ep_state(xhci, epctx, sctx, EP_HALTED); 1864 } else { 1865 epctx->ring.dequeue = xfer->trbs[0].addr; 1866 epctx->ring.ccs = xfer->trbs[0].ccs; 1867 xhci_set_ep_state(xhci, epctx, NULL, EP_HALTED); 1868 } 1869 } 1870 1871 static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, 1872 XHCIEPContext *epctx); 1873 1874 static int xhci_setup_packet(XHCITransfer *xfer) 1875 { 1876 USBEndpoint *ep; 1877 int dir; 1878 1879 dir = xfer->in_xfer ? USB_TOKEN_IN : USB_TOKEN_OUT; 1880 1881 if (xfer->packet.ep) { 1882 ep = xfer->packet.ep; 1883 } else { 1884 ep = xhci_epid_to_usbep(xfer->epctx); 1885 if (!ep) { 1886 DPRINTF("xhci: slot %d has no device\n", 1887 xfer->slotid); 1888 return -1; 1889 } 1890 } 1891 1892 xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */ 1893 usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid, 1894 xfer->trbs[0].addr, false, xfer->int_req); 1895 usb_packet_map(&xfer->packet, &xfer->sgl); 1896 DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", 1897 xfer->packet.pid, ep->dev->addr, ep->nr); 1898 return 0; 1899 } 1900 1901 static int xhci_try_complete_packet(XHCITransfer *xfer) 1902 { 1903 if (xfer->packet.status == USB_RET_ASYNC) { 1904 trace_usb_xhci_xfer_async(xfer); 1905 xfer->running_async = 1; 1906 xfer->running_retry = 0; 1907 xfer->complete = 0; 1908 return 0; 1909 } else if (xfer->packet.status == USB_RET_NAK) { 1910 trace_usb_xhci_xfer_nak(xfer); 1911 xfer->running_async = 0; 1912 xfer->running_retry = 1; 1913 xfer->complete = 0; 1914 return 0; 1915 } else { 1916 xfer->running_async = 0; 1917 xfer->running_retry = 0; 1918 xfer->complete = 1; 1919 xhci_xfer_unmap(xfer); 1920 } 1921 1922 if (xfer->packet.status == USB_RET_SUCCESS) { 1923 trace_usb_xhci_xfer_success(xfer, xfer->packet.actual_length); 1924 xfer->status = CC_SUCCESS; 1925 xhci_xfer_report(xfer); 1926 return 0; 1927 } 1928 1929 /* error */ 1930 trace_usb_xhci_xfer_error(xfer, xfer->packet.status); 1931 switch (xfer->packet.status) { 1932 case USB_RET_NODEV: 1933 case USB_RET_IOERROR: 1934 xfer->status = CC_USB_TRANSACTION_ERROR; 1935 xhci_xfer_report(xfer); 1936 xhci_stall_ep(xfer); 1937 break; 1938 case USB_RET_STALL: 1939 xfer->status = CC_STALL_ERROR; 1940 xhci_xfer_report(xfer); 1941 xhci_stall_ep(xfer); 1942 break; 1943 case USB_RET_BABBLE: 1944 xfer->status = CC_BABBLE_DETECTED; 1945 xhci_xfer_report(xfer); 1946 xhci_stall_ep(xfer); 1947 break; 1948 default: 1949 DPRINTF("%s: FIXME: status = %d\n", __func__, 1950 xfer->packet.status); 1951 FIXME("unhandled USB_RET_*"); 1952 } 1953 return 0; 1954 } 1955 1956 static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) 1957 { 1958 XHCITRB *trb_setup, *trb_status; 1959 uint8_t bmRequestType; 1960 1961 trb_setup = &xfer->trbs[0]; 1962 trb_status = &xfer->trbs[xfer->trb_count-1]; 1963 1964 trace_usb_xhci_xfer_start(xfer, xfer->epctx->slotid, 1965 xfer->epctx->epid, xfer->streamid); 1966 1967 /* at most one Event Data TRB allowed after STATUS */ 1968 if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) { 1969 trb_status--; 1970 } 1971 1972 /* do some sanity checks */ 1973 if (TRB_TYPE(*trb_setup) != TR_SETUP) { 1974 DPRINTF("xhci: ep0 first TD not SETUP: %d\n", 1975 TRB_TYPE(*trb_setup)); 1976 return -1; 1977 } 1978 if (TRB_TYPE(*trb_status) != TR_STATUS) { 1979 DPRINTF("xhci: ep0 last TD not STATUS: %d\n", 1980 TRB_TYPE(*trb_status)); 1981 return -1; 1982 } 1983 if (!(trb_setup->control & TRB_TR_IDT)) { 1984 DPRINTF("xhci: Setup TRB doesn't have IDT set\n"); 1985 return -1; 1986 } 1987 if ((trb_setup->status & 0x1ffff) != 8) { 1988 DPRINTF("xhci: Setup TRB has bad length (%d)\n", 1989 (trb_setup->status & 0x1ffff)); 1990 return -1; 1991 } 1992 1993 bmRequestType = trb_setup->parameter; 1994 1995 xfer->in_xfer = bmRequestType & USB_DIR_IN; 1996 xfer->iso_xfer = false; 1997 xfer->timed_xfer = false; 1998 1999 if (xhci_setup_packet(xfer) < 0) { 2000 return -1; 2001 } 2002 xfer->packet.parameter = trb_setup->parameter; 2003 2004 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 2005 xhci_try_complete_packet(xfer); 2006 return 0; 2007 } 2008 2009 static void xhci_calc_intr_kick(XHCIState *xhci, XHCITransfer *xfer, 2010 XHCIEPContext *epctx, uint64_t mfindex) 2011 { 2012 uint64_t asap = ((mfindex + epctx->interval - 1) & 2013 ~(epctx->interval-1)); 2014 uint64_t kick = epctx->mfindex_last + epctx->interval; 2015 2016 assert(epctx->interval != 0); 2017 xfer->mfindex_kick = MAX(asap, kick); 2018 } 2019 2020 static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 2021 XHCIEPContext *epctx, uint64_t mfindex) 2022 { 2023 if (xfer->trbs[0].control & TRB_TR_SIA) { 2024 uint64_t asap = ((mfindex + epctx->interval - 1) & 2025 ~(epctx->interval-1)); 2026 if (asap >= epctx->mfindex_last && 2027 asap <= epctx->mfindex_last + epctx->interval * 4) { 2028 xfer->mfindex_kick = epctx->mfindex_last + epctx->interval; 2029 } else { 2030 xfer->mfindex_kick = asap; 2031 } 2032 } else { 2033 xfer->mfindex_kick = ((xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT) 2034 & TRB_TR_FRAMEID_MASK) << 3; 2035 xfer->mfindex_kick |= mfindex & ~0x3fff; 2036 if (xfer->mfindex_kick + 0x100 < mfindex) { 2037 xfer->mfindex_kick += 0x4000; 2038 } 2039 } 2040 } 2041 2042 static void xhci_check_intr_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 2043 XHCIEPContext *epctx, uint64_t mfindex) 2044 { 2045 if (xfer->mfindex_kick > mfindex) { 2046 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 2047 (xfer->mfindex_kick - mfindex) * 125000); 2048 xfer->running_retry = 1; 2049 } else { 2050 epctx->mfindex_last = xfer->mfindex_kick; 2051 timer_del(epctx->kick_timer); 2052 xfer->running_retry = 0; 2053 } 2054 } 2055 2056 2057 static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 2058 { 2059 uint64_t mfindex; 2060 2061 DPRINTF("xhci_submit(slotid=%d,epid=%d)\n", xfer->slotid, xfer->epid); 2062 2063 xfer->in_xfer = epctx->type>>2; 2064 2065 switch(epctx->type) { 2066 case ET_INTR_OUT: 2067 case ET_INTR_IN: 2068 xfer->pkts = 0; 2069 xfer->iso_xfer = false; 2070 xfer->timed_xfer = true; 2071 mfindex = xhci_mfindex_get(xhci); 2072 xhci_calc_intr_kick(xhci, xfer, epctx, mfindex); 2073 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 2074 if (xfer->running_retry) { 2075 return -1; 2076 } 2077 break; 2078 case ET_BULK_OUT: 2079 case ET_BULK_IN: 2080 xfer->pkts = 0; 2081 xfer->iso_xfer = false; 2082 xfer->timed_xfer = false; 2083 break; 2084 case ET_ISO_OUT: 2085 case ET_ISO_IN: 2086 xfer->pkts = 1; 2087 xfer->iso_xfer = true; 2088 xfer->timed_xfer = true; 2089 mfindex = xhci_mfindex_get(xhci); 2090 xhci_calc_iso_kick(xhci, xfer, epctx, mfindex); 2091 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 2092 if (xfer->running_retry) { 2093 return -1; 2094 } 2095 break; 2096 default: 2097 trace_usb_xhci_unimplemented("endpoint type", epctx->type); 2098 return -1; 2099 } 2100 2101 if (xhci_setup_packet(xfer) < 0) { 2102 return -1; 2103 } 2104 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 2105 xhci_try_complete_packet(xfer); 2106 return 0; 2107 } 2108 2109 static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 2110 { 2111 trace_usb_xhci_xfer_start(xfer, xfer->epctx->slotid, 2112 xfer->epctx->epid, xfer->streamid); 2113 return xhci_submit(xhci, xfer, epctx); 2114 } 2115 2116 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 2117 unsigned int epid, unsigned int streamid) 2118 { 2119 XHCIEPContext *epctx; 2120 2121 assert(slotid >= 1 && slotid <= xhci->numslots); 2122 assert(epid >= 1 && epid <= 31); 2123 2124 if (!xhci->slots[slotid-1].enabled) { 2125 DPRINTF("xhci: xhci_kick_ep for disabled slot %d\n", slotid); 2126 return; 2127 } 2128 epctx = xhci->slots[slotid-1].eps[epid-1]; 2129 if (!epctx) { 2130 DPRINTF("xhci: xhci_kick_ep for disabled endpoint %d,%d\n", 2131 epid, slotid); 2132 return; 2133 } 2134 2135 if (epctx->kick_active) { 2136 return; 2137 } 2138 xhci_kick_epctx(epctx, streamid); 2139 } 2140 2141 static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid) 2142 { 2143 XHCIState *xhci = epctx->xhci; 2144 XHCIStreamContext *stctx; 2145 XHCITransfer *xfer; 2146 XHCIRing *ring; 2147 USBEndpoint *ep = NULL; 2148 uint64_t mfindex; 2149 int length; 2150 int i; 2151 2152 trace_usb_xhci_ep_kick(epctx->slotid, epctx->epid, streamid); 2153 assert(!epctx->kick_active); 2154 2155 /* If the device has been detached, but the guest has not noticed this 2156 yet the 2 above checks will succeed, but we must NOT continue */ 2157 if (!xhci->slots[epctx->slotid - 1].uport || 2158 !xhci->slots[epctx->slotid - 1].uport->dev || 2159 !xhci->slots[epctx->slotid - 1].uport->dev->attached) { 2160 return; 2161 } 2162 2163 if (epctx->retry) { 2164 XHCITransfer *xfer = epctx->retry; 2165 2166 trace_usb_xhci_xfer_retry(xfer); 2167 assert(xfer->running_retry); 2168 if (xfer->timed_xfer) { 2169 /* time to kick the transfer? */ 2170 mfindex = xhci_mfindex_get(xhci); 2171 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 2172 if (xfer->running_retry) { 2173 return; 2174 } 2175 xfer->timed_xfer = 0; 2176 xfer->running_retry = 1; 2177 } 2178 if (xfer->iso_xfer) { 2179 /* retry iso transfer */ 2180 if (xhci_setup_packet(xfer) < 0) { 2181 return; 2182 } 2183 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 2184 assert(xfer->packet.status != USB_RET_NAK); 2185 xhci_try_complete_packet(xfer); 2186 } else { 2187 /* retry nak'ed transfer */ 2188 if (xhci_setup_packet(xfer) < 0) { 2189 return; 2190 } 2191 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 2192 if (xfer->packet.status == USB_RET_NAK) { 2193 return; 2194 } 2195 xhci_try_complete_packet(xfer); 2196 } 2197 assert(!xfer->running_retry); 2198 if (xfer->complete) { 2199 xhci_ep_free_xfer(epctx->retry); 2200 } 2201 epctx->retry = NULL; 2202 } 2203 2204 if (epctx->state == EP_HALTED) { 2205 DPRINTF("xhci: ep halted, not running schedule\n"); 2206 return; 2207 } 2208 2209 2210 if (epctx->nr_pstreams) { 2211 uint32_t err; 2212 stctx = xhci_find_stream(epctx, streamid, &err); 2213 if (stctx == NULL) { 2214 return; 2215 } 2216 ring = &stctx->ring; 2217 xhci_set_ep_state(xhci, epctx, stctx, EP_RUNNING); 2218 } else { 2219 ring = &epctx->ring; 2220 streamid = 0; 2221 xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING); 2222 } 2223 assert(ring->dequeue != 0); 2224 2225 epctx->kick_active++; 2226 while (1) { 2227 length = xhci_ring_chain_length(xhci, ring); 2228 if (length <= 0) { 2229 break; 2230 } 2231 xfer = xhci_ep_alloc_xfer(epctx, length); 2232 if (xfer == NULL) { 2233 break; 2234 } 2235 2236 for (i = 0; i < length; i++) { 2237 TRBType type; 2238 type = xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL); 2239 assert(type); 2240 } 2241 xfer->streamid = streamid; 2242 2243 if (epctx->epid == 1) { 2244 xhci_fire_ctl_transfer(xhci, xfer); 2245 } else { 2246 xhci_fire_transfer(xhci, xfer, epctx); 2247 } 2248 if (xfer->complete) { 2249 xhci_ep_free_xfer(xfer); 2250 xfer = NULL; 2251 } 2252 2253 if (epctx->state == EP_HALTED) { 2254 break; 2255 } 2256 if (xfer != NULL && xfer->running_retry) { 2257 DPRINTF("xhci: xfer nacked, stopping schedule\n"); 2258 epctx->retry = xfer; 2259 break; 2260 } 2261 } 2262 epctx->kick_active--; 2263 2264 ep = xhci_epid_to_usbep(epctx); 2265 if (ep) { 2266 usb_device_flush_ep_queue(ep->dev, ep); 2267 } 2268 } 2269 2270 static TRBCCode xhci_enable_slot(XHCIState *xhci, unsigned int slotid) 2271 { 2272 trace_usb_xhci_slot_enable(slotid); 2273 assert(slotid >= 1 && slotid <= xhci->numslots); 2274 xhci->slots[slotid-1].enabled = 1; 2275 xhci->slots[slotid-1].uport = NULL; 2276 memset(xhci->slots[slotid-1].eps, 0, sizeof(XHCIEPContext*)*31); 2277 2278 return CC_SUCCESS; 2279 } 2280 2281 static TRBCCode xhci_disable_slot(XHCIState *xhci, unsigned int slotid) 2282 { 2283 int i; 2284 2285 trace_usb_xhci_slot_disable(slotid); 2286 assert(slotid >= 1 && slotid <= xhci->numslots); 2287 2288 for (i = 1; i <= 31; i++) { 2289 if (xhci->slots[slotid-1].eps[i-1]) { 2290 xhci_disable_ep(xhci, slotid, i); 2291 } 2292 } 2293 2294 xhci->slots[slotid-1].enabled = 0; 2295 xhci->slots[slotid-1].addressed = 0; 2296 xhci->slots[slotid-1].uport = NULL; 2297 return CC_SUCCESS; 2298 } 2299 2300 static USBPort *xhci_lookup_uport(XHCIState *xhci, uint32_t *slot_ctx) 2301 { 2302 USBPort *uport; 2303 char path[32]; 2304 int i, pos, port; 2305 2306 port = (slot_ctx[1]>>16) & 0xFF; 2307 if (port < 1 || port > xhci->numports) { 2308 return NULL; 2309 } 2310 port = xhci->ports[port-1].uport->index+1; 2311 pos = snprintf(path, sizeof(path), "%d", port); 2312 for (i = 0; i < 5; i++) { 2313 port = (slot_ctx[0] >> 4*i) & 0x0f; 2314 if (!port) { 2315 break; 2316 } 2317 pos += snprintf(path + pos, sizeof(path) - pos, ".%d", port); 2318 } 2319 2320 QTAILQ_FOREACH(uport, &xhci->bus.used, next) { 2321 if (strcmp(uport->path, path) == 0) { 2322 return uport; 2323 } 2324 } 2325 return NULL; 2326 } 2327 2328 static TRBCCode xhci_address_slot(XHCIState *xhci, unsigned int slotid, 2329 uint64_t pictx, bool bsr) 2330 { 2331 XHCISlot *slot; 2332 USBPort *uport; 2333 USBDevice *dev; 2334 dma_addr_t ictx, octx, dcbaap; 2335 uint64_t poctx; 2336 uint32_t ictl_ctx[2]; 2337 uint32_t slot_ctx[4]; 2338 uint32_t ep0_ctx[5]; 2339 int i; 2340 TRBCCode res; 2341 2342 assert(slotid >= 1 && slotid <= xhci->numslots); 2343 2344 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 2345 poctx = ldq_le_pci_dma(PCI_DEVICE(xhci), dcbaap + 8 * slotid); 2346 ictx = xhci_mask64(pictx); 2347 octx = xhci_mask64(poctx); 2348 2349 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2350 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2351 2352 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2353 2354 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] != 0x3) { 2355 DPRINTF("xhci: invalid input context control %08x %08x\n", 2356 ictl_ctx[0], ictl_ctx[1]); 2357 return CC_TRB_ERROR; 2358 } 2359 2360 xhci_dma_read_u32s(xhci, ictx+32, slot_ctx, sizeof(slot_ctx)); 2361 xhci_dma_read_u32s(xhci, ictx+64, ep0_ctx, sizeof(ep0_ctx)); 2362 2363 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2364 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2365 2366 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2367 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2368 2369 uport = xhci_lookup_uport(xhci, slot_ctx); 2370 if (uport == NULL) { 2371 DPRINTF("xhci: port not found\n"); 2372 return CC_TRB_ERROR; 2373 } 2374 trace_usb_xhci_slot_address(slotid, uport->path); 2375 2376 dev = uport->dev; 2377 if (!dev || !dev->attached) { 2378 DPRINTF("xhci: port %s not connected\n", uport->path); 2379 return CC_USB_TRANSACTION_ERROR; 2380 } 2381 2382 for (i = 0; i < xhci->numslots; i++) { 2383 if (i == slotid-1) { 2384 continue; 2385 } 2386 if (xhci->slots[i].uport == uport) { 2387 DPRINTF("xhci: port %s already assigned to slot %d\n", 2388 uport->path, i+1); 2389 return CC_TRB_ERROR; 2390 } 2391 } 2392 2393 slot = &xhci->slots[slotid-1]; 2394 slot->uport = uport; 2395 slot->ctx = octx; 2396 2397 /* Make sure device is in USB_STATE_DEFAULT state */ 2398 usb_device_reset(dev); 2399 if (bsr) { 2400 slot_ctx[3] = SLOT_DEFAULT << SLOT_STATE_SHIFT; 2401 } else { 2402 USBPacket p; 2403 uint8_t buf[1]; 2404 2405 slot_ctx[3] = (SLOT_ADDRESSED << SLOT_STATE_SHIFT) | slotid; 2406 memset(&p, 0, sizeof(p)); 2407 usb_packet_addbuf(&p, buf, sizeof(buf)); 2408 usb_packet_setup(&p, USB_TOKEN_OUT, 2409 usb_ep_get(dev, USB_TOKEN_OUT, 0), 0, 2410 0, false, false); 2411 usb_device_handle_control(dev, &p, 2412 DeviceOutRequest | USB_REQ_SET_ADDRESS, 2413 slotid, 0, 0, NULL); 2414 assert(p.status != USB_RET_ASYNC); 2415 } 2416 2417 res = xhci_enable_ep(xhci, slotid, 1, octx+32, ep0_ctx); 2418 2419 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2420 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2421 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2422 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2423 2424 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2425 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2426 2427 xhci->slots[slotid-1].addressed = 1; 2428 return res; 2429 } 2430 2431 2432 static TRBCCode xhci_configure_slot(XHCIState *xhci, unsigned int slotid, 2433 uint64_t pictx, bool dc) 2434 { 2435 dma_addr_t ictx, octx; 2436 uint32_t ictl_ctx[2]; 2437 uint32_t slot_ctx[4]; 2438 uint32_t islot_ctx[4]; 2439 uint32_t ep_ctx[5]; 2440 int i; 2441 TRBCCode res; 2442 2443 trace_usb_xhci_slot_configure(slotid); 2444 assert(slotid >= 1 && slotid <= xhci->numslots); 2445 2446 ictx = xhci_mask64(pictx); 2447 octx = xhci->slots[slotid-1].ctx; 2448 2449 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2450 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2451 2452 if (dc) { 2453 for (i = 2; i <= 31; i++) { 2454 if (xhci->slots[slotid-1].eps[i-1]) { 2455 xhci_disable_ep(xhci, slotid, i); 2456 } 2457 } 2458 2459 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2460 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2461 slot_ctx[3] |= SLOT_ADDRESSED << SLOT_STATE_SHIFT; 2462 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2463 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2464 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2465 2466 return CC_SUCCESS; 2467 } 2468 2469 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2470 2471 if ((ictl_ctx[0] & 0x3) != 0x0 || (ictl_ctx[1] & 0x3) != 0x1) { 2472 DPRINTF("xhci: invalid input context control %08x %08x\n", 2473 ictl_ctx[0], ictl_ctx[1]); 2474 return CC_TRB_ERROR; 2475 } 2476 2477 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2478 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2479 2480 if (SLOT_STATE(slot_ctx[3]) < SLOT_ADDRESSED) { 2481 DPRINTF("xhci: invalid slot state %08x\n", slot_ctx[3]); 2482 return CC_CONTEXT_STATE_ERROR; 2483 } 2484 2485 xhci_free_device_streams(xhci, slotid, ictl_ctx[0] | ictl_ctx[1]); 2486 2487 for (i = 2; i <= 31; i++) { 2488 if (ictl_ctx[0] & (1<<i)) { 2489 xhci_disable_ep(xhci, slotid, i); 2490 } 2491 if (ictl_ctx[1] & (1<<i)) { 2492 xhci_dma_read_u32s(xhci, ictx+32+(32*i), ep_ctx, sizeof(ep_ctx)); 2493 DPRINTF("xhci: input ep%d.%d context: %08x %08x %08x %08x %08x\n", 2494 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2495 ep_ctx[3], ep_ctx[4]); 2496 xhci_disable_ep(xhci, slotid, i); 2497 res = xhci_enable_ep(xhci, slotid, i, octx+(32*i), ep_ctx); 2498 if (res != CC_SUCCESS) { 2499 return res; 2500 } 2501 DPRINTF("xhci: output ep%d.%d context: %08x %08x %08x %08x %08x\n", 2502 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2503 ep_ctx[3], ep_ctx[4]); 2504 xhci_dma_write_u32s(xhci, octx+(32*i), ep_ctx, sizeof(ep_ctx)); 2505 } 2506 } 2507 2508 res = xhci_alloc_device_streams(xhci, slotid, ictl_ctx[1]); 2509 if (res != CC_SUCCESS) { 2510 for (i = 2; i <= 31; i++) { 2511 if (ictl_ctx[1] & (1u << i)) { 2512 xhci_disable_ep(xhci, slotid, i); 2513 } 2514 } 2515 return res; 2516 } 2517 2518 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2519 slot_ctx[3] |= SLOT_CONFIGURED << SLOT_STATE_SHIFT; 2520 slot_ctx[0] &= ~(SLOT_CONTEXT_ENTRIES_MASK << SLOT_CONTEXT_ENTRIES_SHIFT); 2521 slot_ctx[0] |= islot_ctx[0] & (SLOT_CONTEXT_ENTRIES_MASK << 2522 SLOT_CONTEXT_ENTRIES_SHIFT); 2523 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2524 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2525 2526 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2527 2528 return CC_SUCCESS; 2529 } 2530 2531 2532 static TRBCCode xhci_evaluate_slot(XHCIState *xhci, unsigned int slotid, 2533 uint64_t pictx) 2534 { 2535 dma_addr_t ictx, octx; 2536 uint32_t ictl_ctx[2]; 2537 uint32_t iep0_ctx[5]; 2538 uint32_t ep0_ctx[5]; 2539 uint32_t islot_ctx[4]; 2540 uint32_t slot_ctx[4]; 2541 2542 trace_usb_xhci_slot_evaluate(slotid); 2543 assert(slotid >= 1 && slotid <= xhci->numslots); 2544 2545 ictx = xhci_mask64(pictx); 2546 octx = xhci->slots[slotid-1].ctx; 2547 2548 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2549 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2550 2551 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2552 2553 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] & ~0x3) { 2554 DPRINTF("xhci: invalid input context control %08x %08x\n", 2555 ictl_ctx[0], ictl_ctx[1]); 2556 return CC_TRB_ERROR; 2557 } 2558 2559 if (ictl_ctx[1] & 0x1) { 2560 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2561 2562 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2563 islot_ctx[0], islot_ctx[1], islot_ctx[2], islot_ctx[3]); 2564 2565 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2566 2567 slot_ctx[1] &= ~0xFFFF; /* max exit latency */ 2568 slot_ctx[1] |= islot_ctx[1] & 0xFFFF; 2569 slot_ctx[2] &= ~0xFF00000; /* interrupter target */ 2570 slot_ctx[2] |= islot_ctx[2] & 0xFF000000; 2571 2572 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2573 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2574 2575 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2576 } 2577 2578 if (ictl_ctx[1] & 0x2) { 2579 xhci_dma_read_u32s(xhci, ictx+64, iep0_ctx, sizeof(iep0_ctx)); 2580 2581 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2582 iep0_ctx[0], iep0_ctx[1], iep0_ctx[2], 2583 iep0_ctx[3], iep0_ctx[4]); 2584 2585 xhci_dma_read_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2586 2587 ep0_ctx[1] &= ~0xFFFF0000; /* max packet size*/ 2588 ep0_ctx[1] |= iep0_ctx[1] & 0xFFFF0000; 2589 2590 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2591 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2592 2593 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2594 } 2595 2596 return CC_SUCCESS; 2597 } 2598 2599 static TRBCCode xhci_reset_slot(XHCIState *xhci, unsigned int slotid) 2600 { 2601 uint32_t slot_ctx[4]; 2602 dma_addr_t octx; 2603 int i; 2604 2605 trace_usb_xhci_slot_reset(slotid); 2606 assert(slotid >= 1 && slotid <= xhci->numslots); 2607 2608 octx = xhci->slots[slotid-1].ctx; 2609 2610 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2611 2612 for (i = 2; i <= 31; i++) { 2613 if (xhci->slots[slotid-1].eps[i-1]) { 2614 xhci_disable_ep(xhci, slotid, i); 2615 } 2616 } 2617 2618 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2619 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2620 slot_ctx[3] |= SLOT_DEFAULT << SLOT_STATE_SHIFT; 2621 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2622 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2623 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2624 2625 return CC_SUCCESS; 2626 } 2627 2628 static unsigned int xhci_get_slot(XHCIState *xhci, XHCIEvent *event, XHCITRB *trb) 2629 { 2630 unsigned int slotid; 2631 slotid = (trb->control >> TRB_CR_SLOTID_SHIFT) & TRB_CR_SLOTID_MASK; 2632 if (slotid < 1 || slotid > xhci->numslots) { 2633 DPRINTF("xhci: bad slot id %d\n", slotid); 2634 event->ccode = CC_TRB_ERROR; 2635 return 0; 2636 } else if (!xhci->slots[slotid-1].enabled) { 2637 DPRINTF("xhci: slot id %d not enabled\n", slotid); 2638 event->ccode = CC_SLOT_NOT_ENABLED_ERROR; 2639 return 0; 2640 } 2641 return slotid; 2642 } 2643 2644 /* cleanup slot state on usb device detach */ 2645 static void xhci_detach_slot(XHCIState *xhci, USBPort *uport) 2646 { 2647 int slot, ep; 2648 2649 for (slot = 0; slot < xhci->numslots; slot++) { 2650 if (xhci->slots[slot].uport == uport) { 2651 break; 2652 } 2653 } 2654 if (slot == xhci->numslots) { 2655 return; 2656 } 2657 2658 for (ep = 0; ep < 31; ep++) { 2659 if (xhci->slots[slot].eps[ep]) { 2660 xhci_ep_nuke_xfers(xhci, slot + 1, ep + 1, 0); 2661 } 2662 } 2663 xhci->slots[slot].uport = NULL; 2664 } 2665 2666 static TRBCCode xhci_get_port_bandwidth(XHCIState *xhci, uint64_t pctx) 2667 { 2668 dma_addr_t ctx; 2669 uint8_t bw_ctx[xhci->numports+1]; 2670 2671 DPRINTF("xhci_get_port_bandwidth()\n"); 2672 2673 ctx = xhci_mask64(pctx); 2674 2675 DPRINTF("xhci: bandwidth context at "DMA_ADDR_FMT"\n", ctx); 2676 2677 /* TODO: actually implement real values here */ 2678 bw_ctx[0] = 0; 2679 memset(&bw_ctx[1], 80, xhci->numports); /* 80% */ 2680 pci_dma_write(PCI_DEVICE(xhci), ctx, bw_ctx, sizeof(bw_ctx)); 2681 2682 return CC_SUCCESS; 2683 } 2684 2685 static uint32_t rotl(uint32_t v, unsigned count) 2686 { 2687 count &= 31; 2688 return (v << count) | (v >> (32 - count)); 2689 } 2690 2691 2692 static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo) 2693 { 2694 uint32_t val; 2695 val = rotl(lo - 0x49434878, 32 - ((hi>>8) & 0x1F)); 2696 val += rotl(lo + 0x49434878, hi & 0x1F); 2697 val -= rotl(hi ^ 0x49434878, (lo >> 16) & 0x1F); 2698 return ~val; 2699 } 2700 2701 static void xhci_via_challenge(XHCIState *xhci, uint64_t addr) 2702 { 2703 PCIDevice *pci_dev = PCI_DEVICE(xhci); 2704 uint32_t buf[8]; 2705 uint32_t obuf[8]; 2706 dma_addr_t paddr = xhci_mask64(addr); 2707 2708 pci_dma_read(pci_dev, paddr, &buf, 32); 2709 2710 memcpy(obuf, buf, sizeof(obuf)); 2711 2712 if ((buf[0] & 0xff) == 2) { 2713 obuf[0] = 0x49932000 + 0x54dc200 * buf[2] + 0x7429b578 * buf[3]; 2714 obuf[0] |= (buf[2] * buf[3]) & 0xff; 2715 obuf[1] = 0x0132bb37 + 0xe89 * buf[2] + 0xf09 * buf[3]; 2716 obuf[2] = 0x0066c2e9 + 0x2091 * buf[2] + 0x19bd * buf[3]; 2717 obuf[3] = 0xd5281342 + 0x2cc9691 * buf[2] + 0x2367662 * buf[3]; 2718 obuf[4] = 0x0123c75c + 0x1595 * buf[2] + 0x19ec * buf[3]; 2719 obuf[5] = 0x00f695de + 0x26fd * buf[2] + 0x3e9 * buf[3]; 2720 obuf[6] = obuf[2] ^ obuf[3] ^ 0x29472956; 2721 obuf[7] = obuf[2] ^ obuf[3] ^ 0x65866593; 2722 } 2723 2724 pci_dma_write(pci_dev, paddr, &obuf, 32); 2725 } 2726 2727 static void xhci_process_commands(XHCIState *xhci) 2728 { 2729 XHCITRB trb; 2730 TRBType type; 2731 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS}; 2732 dma_addr_t addr; 2733 unsigned int i, slotid = 0; 2734 2735 DPRINTF("xhci_process_commands()\n"); 2736 if (!xhci_running(xhci)) { 2737 DPRINTF("xhci_process_commands() called while xHC stopped or paused\n"); 2738 return; 2739 } 2740 2741 xhci->crcr_low |= CRCR_CRR; 2742 2743 while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) { 2744 event.ptr = addr; 2745 switch (type) { 2746 case CR_ENABLE_SLOT: 2747 for (i = 0; i < xhci->numslots; i++) { 2748 if (!xhci->slots[i].enabled) { 2749 break; 2750 } 2751 } 2752 if (i >= xhci->numslots) { 2753 DPRINTF("xhci: no device slots available\n"); 2754 event.ccode = CC_NO_SLOTS_ERROR; 2755 } else { 2756 slotid = i+1; 2757 event.ccode = xhci_enable_slot(xhci, slotid); 2758 } 2759 break; 2760 case CR_DISABLE_SLOT: 2761 slotid = xhci_get_slot(xhci, &event, &trb); 2762 if (slotid) { 2763 event.ccode = xhci_disable_slot(xhci, slotid); 2764 } 2765 break; 2766 case CR_ADDRESS_DEVICE: 2767 slotid = xhci_get_slot(xhci, &event, &trb); 2768 if (slotid) { 2769 event.ccode = xhci_address_slot(xhci, slotid, trb.parameter, 2770 trb.control & TRB_CR_BSR); 2771 } 2772 break; 2773 case CR_CONFIGURE_ENDPOINT: 2774 slotid = xhci_get_slot(xhci, &event, &trb); 2775 if (slotid) { 2776 event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter, 2777 trb.control & TRB_CR_DC); 2778 } 2779 break; 2780 case CR_EVALUATE_CONTEXT: 2781 slotid = xhci_get_slot(xhci, &event, &trb); 2782 if (slotid) { 2783 event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter); 2784 } 2785 break; 2786 case CR_STOP_ENDPOINT: 2787 slotid = xhci_get_slot(xhci, &event, &trb); 2788 if (slotid) { 2789 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2790 & TRB_CR_EPID_MASK; 2791 event.ccode = xhci_stop_ep(xhci, slotid, epid); 2792 } 2793 break; 2794 case CR_RESET_ENDPOINT: 2795 slotid = xhci_get_slot(xhci, &event, &trb); 2796 if (slotid) { 2797 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2798 & TRB_CR_EPID_MASK; 2799 event.ccode = xhci_reset_ep(xhci, slotid, epid); 2800 } 2801 break; 2802 case CR_SET_TR_DEQUEUE: 2803 slotid = xhci_get_slot(xhci, &event, &trb); 2804 if (slotid) { 2805 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2806 & TRB_CR_EPID_MASK; 2807 unsigned int streamid = (trb.status >> 16) & 0xffff; 2808 event.ccode = xhci_set_ep_dequeue(xhci, slotid, 2809 epid, streamid, 2810 trb.parameter); 2811 } 2812 break; 2813 case CR_RESET_DEVICE: 2814 slotid = xhci_get_slot(xhci, &event, &trb); 2815 if (slotid) { 2816 event.ccode = xhci_reset_slot(xhci, slotid); 2817 } 2818 break; 2819 case CR_GET_PORT_BANDWIDTH: 2820 event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter); 2821 break; 2822 case CR_VENDOR_VIA_CHALLENGE_RESPONSE: 2823 xhci_via_challenge(xhci, trb.parameter); 2824 break; 2825 case CR_VENDOR_NEC_FIRMWARE_REVISION: 2826 event.type = 48; /* NEC reply */ 2827 event.length = 0x3025; 2828 break; 2829 case CR_VENDOR_NEC_CHALLENGE_RESPONSE: 2830 { 2831 uint32_t chi = trb.parameter >> 32; 2832 uint32_t clo = trb.parameter; 2833 uint32_t val = xhci_nec_challenge(chi, clo); 2834 event.length = val & 0xFFFF; 2835 event.epid = val >> 16; 2836 slotid = val >> 24; 2837 event.type = 48; /* NEC reply */ 2838 } 2839 break; 2840 default: 2841 trace_usb_xhci_unimplemented("command", type); 2842 event.ccode = CC_TRB_ERROR; 2843 break; 2844 } 2845 event.slotid = slotid; 2846 xhci_event(xhci, &event, 0); 2847 } 2848 } 2849 2850 static bool xhci_port_have_device(XHCIPort *port) 2851 { 2852 if (!port->uport->dev || !port->uport->dev->attached) { 2853 return false; /* no device present */ 2854 } 2855 if (!((1 << port->uport->dev->speed) & port->speedmask)) { 2856 return false; /* speed mismatch */ 2857 } 2858 return true; 2859 } 2860 2861 static void xhci_port_notify(XHCIPort *port, uint32_t bits) 2862 { 2863 XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS, 2864 port->portnr << 24 }; 2865 2866 if ((port->portsc & bits) == bits) { 2867 return; 2868 } 2869 trace_usb_xhci_port_notify(port->portnr, bits); 2870 port->portsc |= bits; 2871 if (!xhci_running(port->xhci)) { 2872 return; 2873 } 2874 xhci_event(port->xhci, &ev, 0); 2875 } 2876 2877 static void xhci_port_update(XHCIPort *port, int is_detach) 2878 { 2879 uint32_t pls = PLS_RX_DETECT; 2880 2881 port->portsc = PORTSC_PP; 2882 if (!is_detach && xhci_port_have_device(port)) { 2883 port->portsc |= PORTSC_CCS; 2884 switch (port->uport->dev->speed) { 2885 case USB_SPEED_LOW: 2886 port->portsc |= PORTSC_SPEED_LOW; 2887 pls = PLS_POLLING; 2888 break; 2889 case USB_SPEED_FULL: 2890 port->portsc |= PORTSC_SPEED_FULL; 2891 pls = PLS_POLLING; 2892 break; 2893 case USB_SPEED_HIGH: 2894 port->portsc |= PORTSC_SPEED_HIGH; 2895 pls = PLS_POLLING; 2896 break; 2897 case USB_SPEED_SUPER: 2898 port->portsc |= PORTSC_SPEED_SUPER; 2899 port->portsc |= PORTSC_PED; 2900 pls = PLS_U0; 2901 break; 2902 } 2903 } 2904 set_field(&port->portsc, pls, PORTSC_PLS); 2905 trace_usb_xhci_port_link(port->portnr, pls); 2906 xhci_port_notify(port, PORTSC_CSC); 2907 } 2908 2909 static void xhci_port_reset(XHCIPort *port, bool warm_reset) 2910 { 2911 trace_usb_xhci_port_reset(port->portnr, warm_reset); 2912 2913 if (!xhci_port_have_device(port)) { 2914 return; 2915 } 2916 2917 usb_device_reset(port->uport->dev); 2918 2919 switch (port->uport->dev->speed) { 2920 case USB_SPEED_SUPER: 2921 if (warm_reset) { 2922 port->portsc |= PORTSC_WRC; 2923 } 2924 /* fall through */ 2925 case USB_SPEED_LOW: 2926 case USB_SPEED_FULL: 2927 case USB_SPEED_HIGH: 2928 set_field(&port->portsc, PLS_U0, PORTSC_PLS); 2929 trace_usb_xhci_port_link(port->portnr, PLS_U0); 2930 port->portsc |= PORTSC_PED; 2931 break; 2932 } 2933 2934 port->portsc &= ~PORTSC_PR; 2935 xhci_port_notify(port, PORTSC_PRC); 2936 } 2937 2938 static void xhci_reset(DeviceState *dev) 2939 { 2940 XHCIState *xhci = XHCI(dev); 2941 int i; 2942 2943 trace_usb_xhci_reset(); 2944 if (!(xhci->usbsts & USBSTS_HCH)) { 2945 DPRINTF("xhci: reset while running!\n"); 2946 } 2947 2948 xhci->usbcmd = 0; 2949 xhci->usbsts = USBSTS_HCH; 2950 xhci->dnctrl = 0; 2951 xhci->crcr_low = 0; 2952 xhci->crcr_high = 0; 2953 xhci->dcbaap_low = 0; 2954 xhci->dcbaap_high = 0; 2955 xhci->config = 0; 2956 2957 for (i = 0; i < xhci->numslots; i++) { 2958 xhci_disable_slot(xhci, i+1); 2959 } 2960 2961 for (i = 0; i < xhci->numports; i++) { 2962 xhci_port_update(xhci->ports + i, 0); 2963 } 2964 2965 for (i = 0; i < xhci->numintrs; i++) { 2966 xhci->intr[i].iman = 0; 2967 xhci->intr[i].imod = 0; 2968 xhci->intr[i].erstsz = 0; 2969 xhci->intr[i].erstba_low = 0; 2970 xhci->intr[i].erstba_high = 0; 2971 xhci->intr[i].erdp_low = 0; 2972 xhci->intr[i].erdp_high = 0; 2973 xhci->intr[i].msix_used = 0; 2974 2975 xhci->intr[i].er_ep_idx = 0; 2976 xhci->intr[i].er_pcs = 1; 2977 xhci->intr[i].er_full = 0; 2978 xhci->intr[i].ev_buffer_put = 0; 2979 xhci->intr[i].ev_buffer_get = 0; 2980 } 2981 2982 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 2983 xhci_mfwrap_update(xhci); 2984 } 2985 2986 static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size) 2987 { 2988 XHCIState *xhci = ptr; 2989 uint32_t ret; 2990 2991 switch (reg) { 2992 case 0x00: /* HCIVERSION, CAPLENGTH */ 2993 ret = 0x01000000 | LEN_CAP; 2994 break; 2995 case 0x04: /* HCSPARAMS 1 */ 2996 ret = ((xhci->numports_2+xhci->numports_3)<<24) 2997 | (xhci->numintrs<<8) | xhci->numslots; 2998 break; 2999 case 0x08: /* HCSPARAMS 2 */ 3000 ret = 0x0000000f; 3001 break; 3002 case 0x0c: /* HCSPARAMS 3 */ 3003 ret = 0x00000000; 3004 break; 3005 case 0x10: /* HCCPARAMS */ 3006 if (sizeof(dma_addr_t) == 4) { 3007 ret = 0x00080000 | (xhci->max_pstreams_mask << 12); 3008 } else { 3009 ret = 0x00080001 | (xhci->max_pstreams_mask << 12); 3010 } 3011 break; 3012 case 0x14: /* DBOFF */ 3013 ret = OFF_DOORBELL; 3014 break; 3015 case 0x18: /* RTSOFF */ 3016 ret = OFF_RUNTIME; 3017 break; 3018 3019 /* extended capabilities */ 3020 case 0x20: /* Supported Protocol:00 */ 3021 ret = 0x02000402; /* USB 2.0 */ 3022 break; 3023 case 0x24: /* Supported Protocol:04 */ 3024 ret = 0x20425355; /* "USB " */ 3025 break; 3026 case 0x28: /* Supported Protocol:08 */ 3027 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3028 ret = (xhci->numports_2<<8) | (xhci->numports_3+1); 3029 } else { 3030 ret = (xhci->numports_2<<8) | 1; 3031 } 3032 break; 3033 case 0x2c: /* Supported Protocol:0c */ 3034 ret = 0x00000000; /* reserved */ 3035 break; 3036 case 0x30: /* Supported Protocol:00 */ 3037 ret = 0x03000002; /* USB 3.0 */ 3038 break; 3039 case 0x34: /* Supported Protocol:04 */ 3040 ret = 0x20425355; /* "USB " */ 3041 break; 3042 case 0x38: /* Supported Protocol:08 */ 3043 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3044 ret = (xhci->numports_3<<8) | 1; 3045 } else { 3046 ret = (xhci->numports_3<<8) | (xhci->numports_2+1); 3047 } 3048 break; 3049 case 0x3c: /* Supported Protocol:0c */ 3050 ret = 0x00000000; /* reserved */ 3051 break; 3052 default: 3053 trace_usb_xhci_unimplemented("cap read", reg); 3054 ret = 0; 3055 } 3056 3057 trace_usb_xhci_cap_read(reg, ret); 3058 return ret; 3059 } 3060 3061 static uint64_t xhci_port_read(void *ptr, hwaddr reg, unsigned size) 3062 { 3063 XHCIPort *port = ptr; 3064 uint32_t ret; 3065 3066 switch (reg) { 3067 case 0x00: /* PORTSC */ 3068 ret = port->portsc; 3069 break; 3070 case 0x04: /* PORTPMSC */ 3071 case 0x08: /* PORTLI */ 3072 ret = 0; 3073 break; 3074 case 0x0c: /* reserved */ 3075 default: 3076 trace_usb_xhci_unimplemented("port read", reg); 3077 ret = 0; 3078 } 3079 3080 trace_usb_xhci_port_read(port->portnr, reg, ret); 3081 return ret; 3082 } 3083 3084 static void xhci_port_write(void *ptr, hwaddr reg, 3085 uint64_t val, unsigned size) 3086 { 3087 XHCIPort *port = ptr; 3088 uint32_t portsc, notify; 3089 3090 trace_usb_xhci_port_write(port->portnr, reg, val); 3091 3092 switch (reg) { 3093 case 0x00: /* PORTSC */ 3094 /* write-1-to-start bits */ 3095 if (val & PORTSC_WPR) { 3096 xhci_port_reset(port, true); 3097 break; 3098 } 3099 if (val & PORTSC_PR) { 3100 xhci_port_reset(port, false); 3101 break; 3102 } 3103 3104 portsc = port->portsc; 3105 notify = 0; 3106 /* write-1-to-clear bits*/ 3107 portsc &= ~(val & (PORTSC_CSC|PORTSC_PEC|PORTSC_WRC|PORTSC_OCC| 3108 PORTSC_PRC|PORTSC_PLC|PORTSC_CEC)); 3109 if (val & PORTSC_LWS) { 3110 /* overwrite PLS only when LWS=1 */ 3111 uint32_t old_pls = get_field(port->portsc, PORTSC_PLS); 3112 uint32_t new_pls = get_field(val, PORTSC_PLS); 3113 switch (new_pls) { 3114 case PLS_U0: 3115 if (old_pls != PLS_U0) { 3116 set_field(&portsc, new_pls, PORTSC_PLS); 3117 trace_usb_xhci_port_link(port->portnr, new_pls); 3118 notify = PORTSC_PLC; 3119 } 3120 break; 3121 case PLS_U3: 3122 if (old_pls < PLS_U3) { 3123 set_field(&portsc, new_pls, PORTSC_PLS); 3124 trace_usb_xhci_port_link(port->portnr, new_pls); 3125 } 3126 break; 3127 case PLS_RESUME: 3128 /* windows does this for some reason, don't spam stderr */ 3129 break; 3130 default: 3131 DPRINTF("%s: ignore pls write (old %d, new %d)\n", 3132 __func__, old_pls, new_pls); 3133 break; 3134 } 3135 } 3136 /* read/write bits */ 3137 portsc &= ~(PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE); 3138 portsc |= (val & (PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE)); 3139 port->portsc = portsc; 3140 if (notify) { 3141 xhci_port_notify(port, notify); 3142 } 3143 break; 3144 case 0x04: /* PORTPMSC */ 3145 case 0x08: /* PORTLI */ 3146 default: 3147 trace_usb_xhci_unimplemented("port write", reg); 3148 } 3149 } 3150 3151 static uint64_t xhci_oper_read(void *ptr, hwaddr reg, unsigned size) 3152 { 3153 XHCIState *xhci = ptr; 3154 uint32_t ret; 3155 3156 switch (reg) { 3157 case 0x00: /* USBCMD */ 3158 ret = xhci->usbcmd; 3159 break; 3160 case 0x04: /* USBSTS */ 3161 ret = xhci->usbsts; 3162 break; 3163 case 0x08: /* PAGESIZE */ 3164 ret = 1; /* 4KiB */ 3165 break; 3166 case 0x14: /* DNCTRL */ 3167 ret = xhci->dnctrl; 3168 break; 3169 case 0x18: /* CRCR low */ 3170 ret = xhci->crcr_low & ~0xe; 3171 break; 3172 case 0x1c: /* CRCR high */ 3173 ret = xhci->crcr_high; 3174 break; 3175 case 0x30: /* DCBAAP low */ 3176 ret = xhci->dcbaap_low; 3177 break; 3178 case 0x34: /* DCBAAP high */ 3179 ret = xhci->dcbaap_high; 3180 break; 3181 case 0x38: /* CONFIG */ 3182 ret = xhci->config; 3183 break; 3184 default: 3185 trace_usb_xhci_unimplemented("oper read", reg); 3186 ret = 0; 3187 } 3188 3189 trace_usb_xhci_oper_read(reg, ret); 3190 return ret; 3191 } 3192 3193 static void xhci_oper_write(void *ptr, hwaddr reg, 3194 uint64_t val, unsigned size) 3195 { 3196 XHCIState *xhci = ptr; 3197 DeviceState *d = DEVICE(ptr); 3198 3199 trace_usb_xhci_oper_write(reg, val); 3200 3201 switch (reg) { 3202 case 0x00: /* USBCMD */ 3203 if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) { 3204 xhci_run(xhci); 3205 } else if (!(val & USBCMD_RS) && (xhci->usbcmd & USBCMD_RS)) { 3206 xhci_stop(xhci); 3207 } 3208 if (val & USBCMD_CSS) { 3209 /* save state */ 3210 xhci->usbsts &= ~USBSTS_SRE; 3211 } 3212 if (val & USBCMD_CRS) { 3213 /* restore state */ 3214 xhci->usbsts |= USBSTS_SRE; 3215 } 3216 xhci->usbcmd = val & 0xc0f; 3217 xhci_mfwrap_update(xhci); 3218 if (val & USBCMD_HCRST) { 3219 xhci_reset(d); 3220 } 3221 xhci_intx_update(xhci); 3222 break; 3223 3224 case 0x04: /* USBSTS */ 3225 /* these bits are write-1-to-clear */ 3226 xhci->usbsts &= ~(val & (USBSTS_HSE|USBSTS_EINT|USBSTS_PCD|USBSTS_SRE)); 3227 xhci_intx_update(xhci); 3228 break; 3229 3230 case 0x14: /* DNCTRL */ 3231 xhci->dnctrl = val & 0xffff; 3232 break; 3233 case 0x18: /* CRCR low */ 3234 xhci->crcr_low = (val & 0xffffffcf) | (xhci->crcr_low & CRCR_CRR); 3235 break; 3236 case 0x1c: /* CRCR high */ 3237 xhci->crcr_high = val; 3238 if (xhci->crcr_low & (CRCR_CA|CRCR_CS) && (xhci->crcr_low & CRCR_CRR)) { 3239 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_COMMAND_RING_STOPPED}; 3240 xhci->crcr_low &= ~CRCR_CRR; 3241 xhci_event(xhci, &event, 0); 3242 DPRINTF("xhci: command ring stopped (CRCR=%08x)\n", xhci->crcr_low); 3243 } else { 3244 dma_addr_t base = xhci_addr64(xhci->crcr_low & ~0x3f, val); 3245 xhci_ring_init(xhci, &xhci->cmd_ring, base); 3246 } 3247 xhci->crcr_low &= ~(CRCR_CA | CRCR_CS); 3248 break; 3249 case 0x30: /* DCBAAP low */ 3250 xhci->dcbaap_low = val & 0xffffffc0; 3251 break; 3252 case 0x34: /* DCBAAP high */ 3253 xhci->dcbaap_high = val; 3254 break; 3255 case 0x38: /* CONFIG */ 3256 xhci->config = val & 0xff; 3257 break; 3258 default: 3259 trace_usb_xhci_unimplemented("oper write", reg); 3260 } 3261 } 3262 3263 static uint64_t xhci_runtime_read(void *ptr, hwaddr reg, 3264 unsigned size) 3265 { 3266 XHCIState *xhci = ptr; 3267 uint32_t ret = 0; 3268 3269 if (reg < 0x20) { 3270 switch (reg) { 3271 case 0x00: /* MFINDEX */ 3272 ret = xhci_mfindex_get(xhci) & 0x3fff; 3273 break; 3274 default: 3275 trace_usb_xhci_unimplemented("runtime read", reg); 3276 break; 3277 } 3278 } else { 3279 int v = (reg - 0x20) / 0x20; 3280 XHCIInterrupter *intr = &xhci->intr[v]; 3281 switch (reg & 0x1f) { 3282 case 0x00: /* IMAN */ 3283 ret = intr->iman; 3284 break; 3285 case 0x04: /* IMOD */ 3286 ret = intr->imod; 3287 break; 3288 case 0x08: /* ERSTSZ */ 3289 ret = intr->erstsz; 3290 break; 3291 case 0x10: /* ERSTBA low */ 3292 ret = intr->erstba_low; 3293 break; 3294 case 0x14: /* ERSTBA high */ 3295 ret = intr->erstba_high; 3296 break; 3297 case 0x18: /* ERDP low */ 3298 ret = intr->erdp_low; 3299 break; 3300 case 0x1c: /* ERDP high */ 3301 ret = intr->erdp_high; 3302 break; 3303 } 3304 } 3305 3306 trace_usb_xhci_runtime_read(reg, ret); 3307 return ret; 3308 } 3309 3310 static void xhci_runtime_write(void *ptr, hwaddr reg, 3311 uint64_t val, unsigned size) 3312 { 3313 XHCIState *xhci = ptr; 3314 int v = (reg - 0x20) / 0x20; 3315 XHCIInterrupter *intr = &xhci->intr[v]; 3316 trace_usb_xhci_runtime_write(reg, val); 3317 3318 if (reg < 0x20) { 3319 trace_usb_xhci_unimplemented("runtime write", reg); 3320 return; 3321 } 3322 3323 switch (reg & 0x1f) { 3324 case 0x00: /* IMAN */ 3325 if (val & IMAN_IP) { 3326 intr->iman &= ~IMAN_IP; 3327 } 3328 intr->iman &= ~IMAN_IE; 3329 intr->iman |= val & IMAN_IE; 3330 if (v == 0) { 3331 xhci_intx_update(xhci); 3332 } 3333 xhci_msix_update(xhci, v); 3334 break; 3335 case 0x04: /* IMOD */ 3336 intr->imod = val; 3337 break; 3338 case 0x08: /* ERSTSZ */ 3339 intr->erstsz = val & 0xffff; 3340 break; 3341 case 0x10: /* ERSTBA low */ 3342 /* XXX NEC driver bug: it doesn't align this to 64 bytes 3343 intr->erstba_low = val & 0xffffffc0; */ 3344 intr->erstba_low = val & 0xfffffff0; 3345 break; 3346 case 0x14: /* ERSTBA high */ 3347 intr->erstba_high = val; 3348 xhci_er_reset(xhci, v); 3349 break; 3350 case 0x18: /* ERDP low */ 3351 if (val & ERDP_EHB) { 3352 intr->erdp_low &= ~ERDP_EHB; 3353 } 3354 intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB); 3355 break; 3356 case 0x1c: /* ERDP high */ 3357 intr->erdp_high = val; 3358 xhci_events_update(xhci, v); 3359 break; 3360 default: 3361 trace_usb_xhci_unimplemented("oper write", reg); 3362 } 3363 } 3364 3365 static uint64_t xhci_doorbell_read(void *ptr, hwaddr reg, 3366 unsigned size) 3367 { 3368 /* doorbells always read as 0 */ 3369 trace_usb_xhci_doorbell_read(reg, 0); 3370 return 0; 3371 } 3372 3373 static void xhci_doorbell_write(void *ptr, hwaddr reg, 3374 uint64_t val, unsigned size) 3375 { 3376 XHCIState *xhci = ptr; 3377 unsigned int epid, streamid; 3378 3379 trace_usb_xhci_doorbell_write(reg, val); 3380 3381 if (!xhci_running(xhci)) { 3382 DPRINTF("xhci: wrote doorbell while xHC stopped or paused\n"); 3383 return; 3384 } 3385 3386 reg >>= 2; 3387 3388 if (reg == 0) { 3389 if (val == 0) { 3390 xhci_process_commands(xhci); 3391 } else { 3392 DPRINTF("xhci: bad doorbell 0 write: 0x%x\n", 3393 (uint32_t)val); 3394 } 3395 } else { 3396 epid = val & 0xff; 3397 streamid = (val >> 16) & 0xffff; 3398 if (reg > xhci->numslots) { 3399 DPRINTF("xhci: bad doorbell %d\n", (int)reg); 3400 } else if (epid > 31) { 3401 DPRINTF("xhci: bad doorbell %d write: 0x%x\n", 3402 (int)reg, (uint32_t)val); 3403 } else { 3404 xhci_kick_ep(xhci, reg, epid, streamid); 3405 } 3406 } 3407 } 3408 3409 static void xhci_cap_write(void *opaque, hwaddr addr, uint64_t val, 3410 unsigned width) 3411 { 3412 /* nothing */ 3413 } 3414 3415 static const MemoryRegionOps xhci_cap_ops = { 3416 .read = xhci_cap_read, 3417 .write = xhci_cap_write, 3418 .valid.min_access_size = 1, 3419 .valid.max_access_size = 4, 3420 .impl.min_access_size = 4, 3421 .impl.max_access_size = 4, 3422 .endianness = DEVICE_LITTLE_ENDIAN, 3423 }; 3424 3425 static const MemoryRegionOps xhci_oper_ops = { 3426 .read = xhci_oper_read, 3427 .write = xhci_oper_write, 3428 .valid.min_access_size = 4, 3429 .valid.max_access_size = 4, 3430 .endianness = DEVICE_LITTLE_ENDIAN, 3431 }; 3432 3433 static const MemoryRegionOps xhci_port_ops = { 3434 .read = xhci_port_read, 3435 .write = xhci_port_write, 3436 .valid.min_access_size = 4, 3437 .valid.max_access_size = 4, 3438 .endianness = DEVICE_LITTLE_ENDIAN, 3439 }; 3440 3441 static const MemoryRegionOps xhci_runtime_ops = { 3442 .read = xhci_runtime_read, 3443 .write = xhci_runtime_write, 3444 .valid.min_access_size = 4, 3445 .valid.max_access_size = 4, 3446 .endianness = DEVICE_LITTLE_ENDIAN, 3447 }; 3448 3449 static const MemoryRegionOps xhci_doorbell_ops = { 3450 .read = xhci_doorbell_read, 3451 .write = xhci_doorbell_write, 3452 .valid.min_access_size = 4, 3453 .valid.max_access_size = 4, 3454 .endianness = DEVICE_LITTLE_ENDIAN, 3455 }; 3456 3457 static void xhci_attach(USBPort *usbport) 3458 { 3459 XHCIState *xhci = usbport->opaque; 3460 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3461 3462 xhci_port_update(port, 0); 3463 } 3464 3465 static void xhci_detach(USBPort *usbport) 3466 { 3467 XHCIState *xhci = usbport->opaque; 3468 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3469 3470 xhci_detach_slot(xhci, usbport); 3471 xhci_port_update(port, 1); 3472 } 3473 3474 static void xhci_wakeup(USBPort *usbport) 3475 { 3476 XHCIState *xhci = usbport->opaque; 3477 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3478 3479 if (get_field(port->portsc, PORTSC_PLS) != PLS_U3) { 3480 return; 3481 } 3482 set_field(&port->portsc, PLS_RESUME, PORTSC_PLS); 3483 xhci_port_notify(port, PORTSC_PLC); 3484 } 3485 3486 static void xhci_complete(USBPort *port, USBPacket *packet) 3487 { 3488 XHCITransfer *xfer = container_of(packet, XHCITransfer, packet); 3489 3490 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 3491 xhci_ep_nuke_one_xfer(xfer, 0); 3492 return; 3493 } 3494 xhci_try_complete_packet(xfer); 3495 xhci_kick_epctx(xfer->epctx, xfer->streamid); 3496 if (xfer->complete) { 3497 xhci_ep_free_xfer(xfer); 3498 } 3499 } 3500 3501 static void xhci_child_detach(USBPort *uport, USBDevice *child) 3502 { 3503 USBBus *bus = usb_bus_from_device(child); 3504 XHCIState *xhci = container_of(bus, XHCIState, bus); 3505 3506 xhci_detach_slot(xhci, child->port); 3507 } 3508 3509 static USBPortOps xhci_uport_ops = { 3510 .attach = xhci_attach, 3511 .detach = xhci_detach, 3512 .wakeup = xhci_wakeup, 3513 .complete = xhci_complete, 3514 .child_detach = xhci_child_detach, 3515 }; 3516 3517 static int xhci_find_epid(USBEndpoint *ep) 3518 { 3519 if (ep->nr == 0) { 3520 return 1; 3521 } 3522 if (ep->pid == USB_TOKEN_IN) { 3523 return ep->nr * 2 + 1; 3524 } else { 3525 return ep->nr * 2; 3526 } 3527 } 3528 3529 static USBEndpoint *xhci_epid_to_usbep(XHCIEPContext *epctx) 3530 { 3531 USBPort *uport; 3532 uint32_t token; 3533 3534 if (!epctx) { 3535 return NULL; 3536 } 3537 uport = epctx->xhci->slots[epctx->slotid - 1].uport; 3538 token = (epctx->epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT; 3539 if (!uport) { 3540 return NULL; 3541 } 3542 return usb_ep_get(uport->dev, token, epctx->epid >> 1); 3543 } 3544 3545 static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, 3546 unsigned int stream) 3547 { 3548 XHCIState *xhci = container_of(bus, XHCIState, bus); 3549 int slotid; 3550 3551 DPRINTF("%s\n", __func__); 3552 slotid = ep->dev->addr; 3553 if (slotid == 0 || !xhci->slots[slotid-1].enabled) { 3554 DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr); 3555 return; 3556 } 3557 xhci_kick_ep(xhci, slotid, xhci_find_epid(ep), stream); 3558 } 3559 3560 static USBBusOps xhci_bus_ops = { 3561 .wakeup_endpoint = xhci_wakeup_endpoint, 3562 }; 3563 3564 static void usb_xhci_init(XHCIState *xhci) 3565 { 3566 DeviceState *dev = DEVICE(xhci); 3567 XHCIPort *port; 3568 int i, usbports, speedmask; 3569 3570 xhci->usbsts = USBSTS_HCH; 3571 3572 if (xhci->numports_2 > MAXPORTS_2) { 3573 xhci->numports_2 = MAXPORTS_2; 3574 } 3575 if (xhci->numports_3 > MAXPORTS_3) { 3576 xhci->numports_3 = MAXPORTS_3; 3577 } 3578 usbports = MAX(xhci->numports_2, xhci->numports_3); 3579 xhci->numports = xhci->numports_2 + xhci->numports_3; 3580 3581 usb_bus_new(&xhci->bus, sizeof(xhci->bus), &xhci_bus_ops, dev); 3582 3583 for (i = 0; i < usbports; i++) { 3584 speedmask = 0; 3585 if (i < xhci->numports_2) { 3586 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3587 port = &xhci->ports[i + xhci->numports_3]; 3588 port->portnr = i + 1 + xhci->numports_3; 3589 } else { 3590 port = &xhci->ports[i]; 3591 port->portnr = i + 1; 3592 } 3593 port->uport = &xhci->uports[i]; 3594 port->speedmask = 3595 USB_SPEED_MASK_LOW | 3596 USB_SPEED_MASK_FULL | 3597 USB_SPEED_MASK_HIGH; 3598 snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1); 3599 speedmask |= port->speedmask; 3600 } 3601 if (i < xhci->numports_3) { 3602 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3603 port = &xhci->ports[i]; 3604 port->portnr = i + 1; 3605 } else { 3606 port = &xhci->ports[i + xhci->numports_2]; 3607 port->portnr = i + 1 + xhci->numports_2; 3608 } 3609 port->uport = &xhci->uports[i]; 3610 port->speedmask = USB_SPEED_MASK_SUPER; 3611 snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1); 3612 speedmask |= port->speedmask; 3613 } 3614 usb_register_port(&xhci->bus, &xhci->uports[i], xhci, i, 3615 &xhci_uport_ops, speedmask); 3616 } 3617 } 3618 3619 static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) 3620 { 3621 int i, ret; 3622 Error *err = NULL; 3623 3624 XHCIState *xhci = XHCI(dev); 3625 3626 dev->config[PCI_CLASS_PROG] = 0x30; /* xHCI */ 3627 dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */ 3628 dev->config[PCI_CACHE_LINE_SIZE] = 0x10; 3629 dev->config[0x60] = 0x30; /* release number */ 3630 3631 if (xhci->numintrs > MAXINTRS) { 3632 xhci->numintrs = MAXINTRS; 3633 } 3634 while (xhci->numintrs & (xhci->numintrs - 1)) { /* ! power of 2 */ 3635 xhci->numintrs++; 3636 } 3637 if (xhci->numintrs < 1) { 3638 xhci->numintrs = 1; 3639 } 3640 if (xhci->numslots > MAXSLOTS) { 3641 xhci->numslots = MAXSLOTS; 3642 } 3643 if (xhci->numslots < 1) { 3644 xhci->numslots = 1; 3645 } 3646 if (xhci_get_flag(xhci, XHCI_FLAG_ENABLE_STREAMS)) { 3647 xhci->max_pstreams_mask = 7; /* == 256 primary streams */ 3648 } else { 3649 xhci->max_pstreams_mask = 0; 3650 } 3651 3652 if (xhci->msi != ON_OFF_AUTO_OFF) { 3653 ret = msi_init(dev, 0x70, xhci->numintrs, true, false, &err); 3654 /* Any error other than -ENOTSUP(board's MSI support is broken) 3655 * is a programming error */ 3656 assert(!ret || ret == -ENOTSUP); 3657 if (ret && xhci->msi == ON_OFF_AUTO_ON) { 3658 /* Can't satisfy user's explicit msi=on request, fail */ 3659 error_append_hint(&err, "You have to use msi=auto (default) or " 3660 "msi=off with this machine type.\n"); 3661 error_propagate(errp, err); 3662 return; 3663 } 3664 assert(!err || xhci->msi == ON_OFF_AUTO_AUTO); 3665 /* With msi=auto, we fall back to MSI off silently */ 3666 error_free(err); 3667 } 3668 3669 usb_xhci_init(xhci); 3670 xhci->mfwrap_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_mfwrap_timer, xhci); 3671 3672 memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); 3673 memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, 3674 "capabilities", LEN_CAP); 3675 memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, 3676 "operational", 0x400); 3677 memory_region_init_io(&xhci->mem_runtime, OBJECT(xhci), &xhci_runtime_ops, xhci, 3678 "runtime", LEN_RUNTIME); 3679 memory_region_init_io(&xhci->mem_doorbell, OBJECT(xhci), &xhci_doorbell_ops, xhci, 3680 "doorbell", LEN_DOORBELL); 3681 3682 memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap); 3683 memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper); 3684 memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime); 3685 memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell); 3686 3687 for (i = 0; i < xhci->numports; i++) { 3688 XHCIPort *port = &xhci->ports[i]; 3689 uint32_t offset = OFF_OPER + 0x400 + 0x10 * i; 3690 port->xhci = xhci; 3691 memory_region_init_io(&port->mem, OBJECT(xhci), &xhci_port_ops, port, 3692 port->name, 0x10); 3693 memory_region_add_subregion(&xhci->mem, offset, &port->mem); 3694 } 3695 3696 pci_register_bar(dev, 0, 3697 PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64, 3698 &xhci->mem); 3699 3700 if (pci_bus_is_express(dev->bus) || 3701 xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) { 3702 ret = pcie_endpoint_cap_init(dev, 0xa0); 3703 assert(ret >= 0); 3704 } 3705 3706 if (xhci->msix != ON_OFF_AUTO_OFF) { 3707 /* TODO check for errors, and should fail when msix=on */ 3708 msix_init(dev, xhci->numintrs, 3709 &xhci->mem, 0, OFF_MSIX_TABLE, 3710 &xhci->mem, 0, OFF_MSIX_PBA, 3711 0x90, NULL); 3712 } 3713 } 3714 3715 static void usb_xhci_exit(PCIDevice *dev) 3716 { 3717 int i; 3718 XHCIState *xhci = XHCI(dev); 3719 3720 trace_usb_xhci_exit(); 3721 3722 for (i = 0; i < xhci->numslots; i++) { 3723 xhci_disable_slot(xhci, i + 1); 3724 } 3725 3726 if (xhci->mfwrap_timer) { 3727 timer_del(xhci->mfwrap_timer); 3728 timer_free(xhci->mfwrap_timer); 3729 xhci->mfwrap_timer = NULL; 3730 } 3731 3732 memory_region_del_subregion(&xhci->mem, &xhci->mem_cap); 3733 memory_region_del_subregion(&xhci->mem, &xhci->mem_oper); 3734 memory_region_del_subregion(&xhci->mem, &xhci->mem_runtime); 3735 memory_region_del_subregion(&xhci->mem, &xhci->mem_doorbell); 3736 3737 for (i = 0; i < xhci->numports; i++) { 3738 XHCIPort *port = &xhci->ports[i]; 3739 memory_region_del_subregion(&xhci->mem, &port->mem); 3740 } 3741 3742 /* destroy msix memory region */ 3743 if (dev->msix_table && dev->msix_pba 3744 && dev->msix_entry_used) { 3745 msix_uninit(dev, &xhci->mem, &xhci->mem); 3746 } 3747 3748 usb_bus_release(&xhci->bus); 3749 } 3750 3751 static int usb_xhci_post_load(void *opaque, int version_id) 3752 { 3753 XHCIState *xhci = opaque; 3754 PCIDevice *pci_dev = PCI_DEVICE(xhci); 3755 XHCISlot *slot; 3756 XHCIEPContext *epctx; 3757 dma_addr_t dcbaap, pctx; 3758 uint32_t slot_ctx[4]; 3759 uint32_t ep_ctx[5]; 3760 int slotid, epid, state, intr; 3761 3762 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 3763 3764 for (slotid = 1; slotid <= xhci->numslots; slotid++) { 3765 slot = &xhci->slots[slotid-1]; 3766 if (!slot->addressed) { 3767 continue; 3768 } 3769 slot->ctx = 3770 xhci_mask64(ldq_le_pci_dma(pci_dev, dcbaap + 8 * slotid)); 3771 xhci_dma_read_u32s(xhci, slot->ctx, slot_ctx, sizeof(slot_ctx)); 3772 slot->uport = xhci_lookup_uport(xhci, slot_ctx); 3773 if (!slot->uport) { 3774 /* should not happen, but may trigger on guest bugs */ 3775 slot->enabled = 0; 3776 slot->addressed = 0; 3777 continue; 3778 } 3779 assert(slot->uport && slot->uport->dev); 3780 3781 for (epid = 1; epid <= 31; epid++) { 3782 pctx = slot->ctx + 32 * epid; 3783 xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx)); 3784 state = ep_ctx[0] & EP_STATE_MASK; 3785 if (state == EP_DISABLED) { 3786 continue; 3787 } 3788 epctx = xhci_alloc_epctx(xhci, slotid, epid); 3789 slot->eps[epid-1] = epctx; 3790 xhci_init_epctx(epctx, pctx, ep_ctx); 3791 epctx->state = state; 3792 if (state == EP_RUNNING) { 3793 /* kick endpoint after vmload is finished */ 3794 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); 3795 } 3796 } 3797 } 3798 3799 for (intr = 0; intr < xhci->numintrs; intr++) { 3800 if (xhci->intr[intr].msix_used) { 3801 msix_vector_use(pci_dev, intr); 3802 } else { 3803 msix_vector_unuse(pci_dev, intr); 3804 } 3805 } 3806 3807 return 0; 3808 } 3809 3810 static const VMStateDescription vmstate_xhci_ring = { 3811 .name = "xhci-ring", 3812 .version_id = 1, 3813 .fields = (VMStateField[]) { 3814 VMSTATE_UINT64(dequeue, XHCIRing), 3815 VMSTATE_BOOL(ccs, XHCIRing), 3816 VMSTATE_END_OF_LIST() 3817 } 3818 }; 3819 3820 static const VMStateDescription vmstate_xhci_port = { 3821 .name = "xhci-port", 3822 .version_id = 1, 3823 .fields = (VMStateField[]) { 3824 VMSTATE_UINT32(portsc, XHCIPort), 3825 VMSTATE_END_OF_LIST() 3826 } 3827 }; 3828 3829 static const VMStateDescription vmstate_xhci_slot = { 3830 .name = "xhci-slot", 3831 .version_id = 1, 3832 .fields = (VMStateField[]) { 3833 VMSTATE_BOOL(enabled, XHCISlot), 3834 VMSTATE_BOOL(addressed, XHCISlot), 3835 VMSTATE_END_OF_LIST() 3836 } 3837 }; 3838 3839 static const VMStateDescription vmstate_xhci_event = { 3840 .name = "xhci-event", 3841 .version_id = 1, 3842 .fields = (VMStateField[]) { 3843 VMSTATE_UINT32(type, XHCIEvent), 3844 VMSTATE_UINT32(ccode, XHCIEvent), 3845 VMSTATE_UINT64(ptr, XHCIEvent), 3846 VMSTATE_UINT32(length, XHCIEvent), 3847 VMSTATE_UINT32(flags, XHCIEvent), 3848 VMSTATE_UINT8(slotid, XHCIEvent), 3849 VMSTATE_UINT8(epid, XHCIEvent), 3850 VMSTATE_END_OF_LIST() 3851 } 3852 }; 3853 3854 static bool xhci_er_full(void *opaque, int version_id) 3855 { 3856 struct XHCIInterrupter *intr = opaque; 3857 return intr->er_full; 3858 } 3859 3860 static const VMStateDescription vmstate_xhci_intr = { 3861 .name = "xhci-intr", 3862 .version_id = 1, 3863 .fields = (VMStateField[]) { 3864 /* registers */ 3865 VMSTATE_UINT32(iman, XHCIInterrupter), 3866 VMSTATE_UINT32(imod, XHCIInterrupter), 3867 VMSTATE_UINT32(erstsz, XHCIInterrupter), 3868 VMSTATE_UINT32(erstba_low, XHCIInterrupter), 3869 VMSTATE_UINT32(erstba_high, XHCIInterrupter), 3870 VMSTATE_UINT32(erdp_low, XHCIInterrupter), 3871 VMSTATE_UINT32(erdp_high, XHCIInterrupter), 3872 3873 /* state */ 3874 VMSTATE_BOOL(msix_used, XHCIInterrupter), 3875 VMSTATE_BOOL(er_pcs, XHCIInterrupter), 3876 VMSTATE_UINT64(er_start, XHCIInterrupter), 3877 VMSTATE_UINT32(er_size, XHCIInterrupter), 3878 VMSTATE_UINT32(er_ep_idx, XHCIInterrupter), 3879 3880 /* event queue (used if ring is full) */ 3881 VMSTATE_BOOL(er_full, XHCIInterrupter), 3882 VMSTATE_UINT32_TEST(ev_buffer_put, XHCIInterrupter, xhci_er_full), 3883 VMSTATE_UINT32_TEST(ev_buffer_get, XHCIInterrupter, xhci_er_full), 3884 VMSTATE_STRUCT_ARRAY_TEST(ev_buffer, XHCIInterrupter, EV_QUEUE, 3885 xhci_er_full, 1, 3886 vmstate_xhci_event, XHCIEvent), 3887 3888 VMSTATE_END_OF_LIST() 3889 } 3890 }; 3891 3892 static const VMStateDescription vmstate_xhci = { 3893 .name = "xhci", 3894 .version_id = 1, 3895 .post_load = usb_xhci_post_load, 3896 .fields = (VMStateField[]) { 3897 VMSTATE_PCI_DEVICE(parent_obj, XHCIState), 3898 VMSTATE_MSIX(parent_obj, XHCIState), 3899 3900 VMSTATE_STRUCT_VARRAY_UINT32(ports, XHCIState, numports, 1, 3901 vmstate_xhci_port, XHCIPort), 3902 VMSTATE_STRUCT_VARRAY_UINT32(slots, XHCIState, numslots, 1, 3903 vmstate_xhci_slot, XHCISlot), 3904 VMSTATE_STRUCT_VARRAY_UINT32(intr, XHCIState, numintrs, 1, 3905 vmstate_xhci_intr, XHCIInterrupter), 3906 3907 /* Operational Registers */ 3908 VMSTATE_UINT32(usbcmd, XHCIState), 3909 VMSTATE_UINT32(usbsts, XHCIState), 3910 VMSTATE_UINT32(dnctrl, XHCIState), 3911 VMSTATE_UINT32(crcr_low, XHCIState), 3912 VMSTATE_UINT32(crcr_high, XHCIState), 3913 VMSTATE_UINT32(dcbaap_low, XHCIState), 3914 VMSTATE_UINT32(dcbaap_high, XHCIState), 3915 VMSTATE_UINT32(config, XHCIState), 3916 3917 /* Runtime Registers & state */ 3918 VMSTATE_INT64(mfindex_start, XHCIState), 3919 VMSTATE_TIMER_PTR(mfwrap_timer, XHCIState), 3920 VMSTATE_STRUCT(cmd_ring, XHCIState, 1, vmstate_xhci_ring, XHCIRing), 3921 3922 VMSTATE_END_OF_LIST() 3923 } 3924 }; 3925 3926 static Property xhci_properties[] = { 3927 DEFINE_PROP_ON_OFF_AUTO("msi", XHCIState, msi, ON_OFF_AUTO_AUTO), 3928 DEFINE_PROP_ON_OFF_AUTO("msix", XHCIState, msix, ON_OFF_AUTO_AUTO), 3929 DEFINE_PROP_BIT("superspeed-ports-first", 3930 XHCIState, flags, XHCI_FLAG_SS_FIRST, true), 3931 DEFINE_PROP_BIT("force-pcie-endcap", XHCIState, flags, 3932 XHCI_FLAG_FORCE_PCIE_ENDCAP, false), 3933 DEFINE_PROP_BIT("streams", XHCIState, flags, 3934 XHCI_FLAG_ENABLE_STREAMS, true), 3935 DEFINE_PROP_UINT32("intrs", XHCIState, numintrs, MAXINTRS), 3936 DEFINE_PROP_UINT32("slots", XHCIState, numslots, MAXSLOTS), 3937 DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4), 3938 DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4), 3939 DEFINE_PROP_END_OF_LIST(), 3940 }; 3941 3942 static void xhci_class_init(ObjectClass *klass, void *data) 3943 { 3944 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 3945 DeviceClass *dc = DEVICE_CLASS(klass); 3946 3947 dc->vmsd = &vmstate_xhci; 3948 dc->props = xhci_properties; 3949 dc->reset = xhci_reset; 3950 set_bit(DEVICE_CATEGORY_USB, dc->categories); 3951 k->realize = usb_xhci_realize; 3952 k->exit = usb_xhci_exit; 3953 k->vendor_id = PCI_VENDOR_ID_NEC; 3954 k->device_id = PCI_DEVICE_ID_NEC_UPD720200; 3955 k->class_id = PCI_CLASS_SERIAL_USB; 3956 k->revision = 0x03; 3957 k->is_express = 1; 3958 } 3959 3960 static const TypeInfo xhci_info = { 3961 .name = TYPE_XHCI, 3962 .parent = TYPE_PCI_DEVICE, 3963 .instance_size = sizeof(XHCIState), 3964 .class_init = xhci_class_init, 3965 }; 3966 3967 static void xhci_register_types(void) 3968 { 3969 type_register_static(&xhci_info); 3970 } 3971 3972 type_init(xhci_register_types) 3973