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 #include "hcd-xhci.h" 33 34 //#define DEBUG_XHCI 35 //#define DEBUG_DATA 36 37 #ifdef DEBUG_XHCI 38 #define DPRINTF(...) fprintf(stderr, __VA_ARGS__) 39 #else 40 #define DPRINTF(...) do {} while (0) 41 #endif 42 #define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \ 43 __func__, __LINE__, _msg); abort(); } while (0) 44 45 #define TRB_LINK_LIMIT 32 46 #define COMMAND_LIMIT 256 47 #define TRANSFER_LIMIT 256 48 49 #define LEN_CAP 0x40 50 #define LEN_OPER (0x400 + 0x10 * MAXPORTS) 51 #define LEN_RUNTIME ((MAXINTRS + 1) * 0x20) 52 #define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20) 53 54 #define OFF_OPER LEN_CAP 55 #define OFF_RUNTIME 0x1000 56 #define OFF_DOORBELL 0x2000 57 #define OFF_MSIX_TABLE 0x3000 58 #define OFF_MSIX_PBA 0x3800 59 /* must be power of 2 */ 60 #define LEN_REGS 0x4000 61 62 #if (OFF_OPER + LEN_OPER) > OFF_RUNTIME 63 #error Increase OFF_RUNTIME 64 #endif 65 #if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL 66 #error Increase OFF_DOORBELL 67 #endif 68 #if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS 69 # error Increase LEN_REGS 70 #endif 71 72 /* bit definitions */ 73 #define USBCMD_RS (1<<0) 74 #define USBCMD_HCRST (1<<1) 75 #define USBCMD_INTE (1<<2) 76 #define USBCMD_HSEE (1<<3) 77 #define USBCMD_LHCRST (1<<7) 78 #define USBCMD_CSS (1<<8) 79 #define USBCMD_CRS (1<<9) 80 #define USBCMD_EWE (1<<10) 81 #define USBCMD_EU3S (1<<11) 82 83 #define USBSTS_HCH (1<<0) 84 #define USBSTS_HSE (1<<2) 85 #define USBSTS_EINT (1<<3) 86 #define USBSTS_PCD (1<<4) 87 #define USBSTS_SSS (1<<8) 88 #define USBSTS_RSS (1<<9) 89 #define USBSTS_SRE (1<<10) 90 #define USBSTS_CNR (1<<11) 91 #define USBSTS_HCE (1<<12) 92 93 94 #define PORTSC_CCS (1<<0) 95 #define PORTSC_PED (1<<1) 96 #define PORTSC_OCA (1<<3) 97 #define PORTSC_PR (1<<4) 98 #define PORTSC_PLS_SHIFT 5 99 #define PORTSC_PLS_MASK 0xf 100 #define PORTSC_PP (1<<9) 101 #define PORTSC_SPEED_SHIFT 10 102 #define PORTSC_SPEED_MASK 0xf 103 #define PORTSC_SPEED_FULL (1<<10) 104 #define PORTSC_SPEED_LOW (2<<10) 105 #define PORTSC_SPEED_HIGH (3<<10) 106 #define PORTSC_SPEED_SUPER (4<<10) 107 #define PORTSC_PIC_SHIFT 14 108 #define PORTSC_PIC_MASK 0x3 109 #define PORTSC_LWS (1<<16) 110 #define PORTSC_CSC (1<<17) 111 #define PORTSC_PEC (1<<18) 112 #define PORTSC_WRC (1<<19) 113 #define PORTSC_OCC (1<<20) 114 #define PORTSC_PRC (1<<21) 115 #define PORTSC_PLC (1<<22) 116 #define PORTSC_CEC (1<<23) 117 #define PORTSC_CAS (1<<24) 118 #define PORTSC_WCE (1<<25) 119 #define PORTSC_WDE (1<<26) 120 #define PORTSC_WOE (1<<27) 121 #define PORTSC_DR (1<<30) 122 #define PORTSC_WPR (1<<31) 123 124 #define CRCR_RCS (1<<0) 125 #define CRCR_CS (1<<1) 126 #define CRCR_CA (1<<2) 127 #define CRCR_CRR (1<<3) 128 129 #define IMAN_IP (1<<0) 130 #define IMAN_IE (1<<1) 131 132 #define ERDP_EHB (1<<3) 133 134 #define TRB_SIZE 16 135 typedef struct XHCITRB { 136 uint64_t parameter; 137 uint32_t status; 138 uint32_t control; 139 dma_addr_t addr; 140 bool ccs; 141 } XHCITRB; 142 143 enum { 144 PLS_U0 = 0, 145 PLS_U1 = 1, 146 PLS_U2 = 2, 147 PLS_U3 = 3, 148 PLS_DISABLED = 4, 149 PLS_RX_DETECT = 5, 150 PLS_INACTIVE = 6, 151 PLS_POLLING = 7, 152 PLS_RECOVERY = 8, 153 PLS_HOT_RESET = 9, 154 PLS_COMPILANCE_MODE = 10, 155 PLS_TEST_MODE = 11, 156 PLS_RESUME = 15, 157 }; 158 159 #define CR_LINK TR_LINK 160 161 #define TRB_C (1<<0) 162 #define TRB_TYPE_SHIFT 10 163 #define TRB_TYPE_MASK 0x3f 164 #define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK) 165 166 #define TRB_EV_ED (1<<2) 167 168 #define TRB_TR_ENT (1<<1) 169 #define TRB_TR_ISP (1<<2) 170 #define TRB_TR_NS (1<<3) 171 #define TRB_TR_CH (1<<4) 172 #define TRB_TR_IOC (1<<5) 173 #define TRB_TR_IDT (1<<6) 174 #define TRB_TR_TBC_SHIFT 7 175 #define TRB_TR_TBC_MASK 0x3 176 #define TRB_TR_BEI (1<<9) 177 #define TRB_TR_TLBPC_SHIFT 16 178 #define TRB_TR_TLBPC_MASK 0xf 179 #define TRB_TR_FRAMEID_SHIFT 20 180 #define TRB_TR_FRAMEID_MASK 0x7ff 181 #define TRB_TR_SIA (1<<31) 182 183 #define TRB_TR_DIR (1<<16) 184 185 #define TRB_CR_SLOTID_SHIFT 24 186 #define TRB_CR_SLOTID_MASK 0xff 187 #define TRB_CR_EPID_SHIFT 16 188 #define TRB_CR_EPID_MASK 0x1f 189 190 #define TRB_CR_BSR (1<<9) 191 #define TRB_CR_DC (1<<9) 192 193 #define TRB_LK_TC (1<<1) 194 195 #define TRB_INTR_SHIFT 22 196 #define TRB_INTR_MASK 0x3ff 197 #define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK) 198 199 #define EP_TYPE_MASK 0x7 200 #define EP_TYPE_SHIFT 3 201 202 #define EP_STATE_MASK 0x7 203 #define EP_DISABLED (0<<0) 204 #define EP_RUNNING (1<<0) 205 #define EP_HALTED (2<<0) 206 #define EP_STOPPED (3<<0) 207 #define EP_ERROR (4<<0) 208 209 #define SLOT_STATE_MASK 0x1f 210 #define SLOT_STATE_SHIFT 27 211 #define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK) 212 #define SLOT_ENABLED 0 213 #define SLOT_DEFAULT 1 214 #define SLOT_ADDRESSED 2 215 #define SLOT_CONFIGURED 3 216 217 #define SLOT_CONTEXT_ENTRIES_MASK 0x1f 218 #define SLOT_CONTEXT_ENTRIES_SHIFT 27 219 220 #define get_field(data, field) \ 221 (((data) >> field##_SHIFT) & field##_MASK) 222 223 #define set_field(data, newval, field) do { \ 224 uint32_t val = *data; \ 225 val &= ~(field##_MASK << field##_SHIFT); \ 226 val |= ((newval) & field##_MASK) << field##_SHIFT; \ 227 *data = val; \ 228 } while (0) 229 230 typedef enum EPType { 231 ET_INVALID = 0, 232 ET_ISO_OUT, 233 ET_BULK_OUT, 234 ET_INTR_OUT, 235 ET_CONTROL, 236 ET_ISO_IN, 237 ET_BULK_IN, 238 ET_INTR_IN, 239 } EPType; 240 241 typedef struct XHCITransfer { 242 XHCIEPContext *epctx; 243 USBPacket packet; 244 QEMUSGList sgl; 245 bool running_async; 246 bool running_retry; 247 bool complete; 248 bool int_req; 249 unsigned int iso_pkts; 250 unsigned int streamid; 251 bool in_xfer; 252 bool iso_xfer; 253 bool timed_xfer; 254 255 unsigned int trb_count; 256 XHCITRB *trbs; 257 258 TRBCCode status; 259 260 unsigned int pkts; 261 unsigned int pktsize; 262 unsigned int cur_pkt; 263 264 uint64_t mfindex_kick; 265 266 QTAILQ_ENTRY(XHCITransfer) next; 267 } XHCITransfer; 268 269 struct XHCIStreamContext { 270 dma_addr_t pctx; 271 unsigned int sct; 272 XHCIRing ring; 273 }; 274 275 struct XHCIEPContext { 276 XHCIState *xhci; 277 unsigned int slotid; 278 unsigned int epid; 279 280 XHCIRing ring; 281 uint32_t xfer_count; 282 QTAILQ_HEAD(, XHCITransfer) transfers; 283 XHCITransfer *retry; 284 EPType type; 285 dma_addr_t pctx; 286 unsigned int max_psize; 287 uint32_t state; 288 uint32_t kick_active; 289 290 /* streams */ 291 unsigned int max_pstreams; 292 bool lsa; 293 unsigned int nr_pstreams; 294 XHCIStreamContext *pstreams; 295 296 /* iso xfer scheduling */ 297 unsigned int interval; 298 int64_t mfindex_last; 299 QEMUTimer *kick_timer; 300 }; 301 302 typedef struct XHCIEvRingSeg { 303 uint32_t addr_low; 304 uint32_t addr_high; 305 uint32_t size; 306 uint32_t rsvd; 307 } XHCIEvRingSeg; 308 309 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 310 unsigned int epid, unsigned int streamid); 311 static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid); 312 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 313 unsigned int epid); 314 static void xhci_xfer_report(XHCITransfer *xfer); 315 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v); 316 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v); 317 static USBEndpoint *xhci_epid_to_usbep(XHCIEPContext *epctx); 318 319 static const char *TRBType_names[] = { 320 [TRB_RESERVED] = "TRB_RESERVED", 321 [TR_NORMAL] = "TR_NORMAL", 322 [TR_SETUP] = "TR_SETUP", 323 [TR_DATA] = "TR_DATA", 324 [TR_STATUS] = "TR_STATUS", 325 [TR_ISOCH] = "TR_ISOCH", 326 [TR_LINK] = "TR_LINK", 327 [TR_EVDATA] = "TR_EVDATA", 328 [TR_NOOP] = "TR_NOOP", 329 [CR_ENABLE_SLOT] = "CR_ENABLE_SLOT", 330 [CR_DISABLE_SLOT] = "CR_DISABLE_SLOT", 331 [CR_ADDRESS_DEVICE] = "CR_ADDRESS_DEVICE", 332 [CR_CONFIGURE_ENDPOINT] = "CR_CONFIGURE_ENDPOINT", 333 [CR_EVALUATE_CONTEXT] = "CR_EVALUATE_CONTEXT", 334 [CR_RESET_ENDPOINT] = "CR_RESET_ENDPOINT", 335 [CR_STOP_ENDPOINT] = "CR_STOP_ENDPOINT", 336 [CR_SET_TR_DEQUEUE] = "CR_SET_TR_DEQUEUE", 337 [CR_RESET_DEVICE] = "CR_RESET_DEVICE", 338 [CR_FORCE_EVENT] = "CR_FORCE_EVENT", 339 [CR_NEGOTIATE_BW] = "CR_NEGOTIATE_BW", 340 [CR_SET_LATENCY_TOLERANCE] = "CR_SET_LATENCY_TOLERANCE", 341 [CR_GET_PORT_BANDWIDTH] = "CR_GET_PORT_BANDWIDTH", 342 [CR_FORCE_HEADER] = "CR_FORCE_HEADER", 343 [CR_NOOP] = "CR_NOOP", 344 [ER_TRANSFER] = "ER_TRANSFER", 345 [ER_COMMAND_COMPLETE] = "ER_COMMAND_COMPLETE", 346 [ER_PORT_STATUS_CHANGE] = "ER_PORT_STATUS_CHANGE", 347 [ER_BANDWIDTH_REQUEST] = "ER_BANDWIDTH_REQUEST", 348 [ER_DOORBELL] = "ER_DOORBELL", 349 [ER_HOST_CONTROLLER] = "ER_HOST_CONTROLLER", 350 [ER_DEVICE_NOTIFICATION] = "ER_DEVICE_NOTIFICATION", 351 [ER_MFINDEX_WRAP] = "ER_MFINDEX_WRAP", 352 [CR_VENDOR_NEC_FIRMWARE_REVISION] = "CR_VENDOR_NEC_FIRMWARE_REVISION", 353 [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE", 354 }; 355 356 static const char *TRBCCode_names[] = { 357 [CC_INVALID] = "CC_INVALID", 358 [CC_SUCCESS] = "CC_SUCCESS", 359 [CC_DATA_BUFFER_ERROR] = "CC_DATA_BUFFER_ERROR", 360 [CC_BABBLE_DETECTED] = "CC_BABBLE_DETECTED", 361 [CC_USB_TRANSACTION_ERROR] = "CC_USB_TRANSACTION_ERROR", 362 [CC_TRB_ERROR] = "CC_TRB_ERROR", 363 [CC_STALL_ERROR] = "CC_STALL_ERROR", 364 [CC_RESOURCE_ERROR] = "CC_RESOURCE_ERROR", 365 [CC_BANDWIDTH_ERROR] = "CC_BANDWIDTH_ERROR", 366 [CC_NO_SLOTS_ERROR] = "CC_NO_SLOTS_ERROR", 367 [CC_INVALID_STREAM_TYPE_ERROR] = "CC_INVALID_STREAM_TYPE_ERROR", 368 [CC_SLOT_NOT_ENABLED_ERROR] = "CC_SLOT_NOT_ENABLED_ERROR", 369 [CC_EP_NOT_ENABLED_ERROR] = "CC_EP_NOT_ENABLED_ERROR", 370 [CC_SHORT_PACKET] = "CC_SHORT_PACKET", 371 [CC_RING_UNDERRUN] = "CC_RING_UNDERRUN", 372 [CC_RING_OVERRUN] = "CC_RING_OVERRUN", 373 [CC_VF_ER_FULL] = "CC_VF_ER_FULL", 374 [CC_PARAMETER_ERROR] = "CC_PARAMETER_ERROR", 375 [CC_BANDWIDTH_OVERRUN] = "CC_BANDWIDTH_OVERRUN", 376 [CC_CONTEXT_STATE_ERROR] = "CC_CONTEXT_STATE_ERROR", 377 [CC_NO_PING_RESPONSE_ERROR] = "CC_NO_PING_RESPONSE_ERROR", 378 [CC_EVENT_RING_FULL_ERROR] = "CC_EVENT_RING_FULL_ERROR", 379 [CC_INCOMPATIBLE_DEVICE_ERROR] = "CC_INCOMPATIBLE_DEVICE_ERROR", 380 [CC_MISSED_SERVICE_ERROR] = "CC_MISSED_SERVICE_ERROR", 381 [CC_COMMAND_RING_STOPPED] = "CC_COMMAND_RING_STOPPED", 382 [CC_COMMAND_ABORTED] = "CC_COMMAND_ABORTED", 383 [CC_STOPPED] = "CC_STOPPED", 384 [CC_STOPPED_LENGTH_INVALID] = "CC_STOPPED_LENGTH_INVALID", 385 [CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR] 386 = "CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR", 387 [CC_ISOCH_BUFFER_OVERRUN] = "CC_ISOCH_BUFFER_OVERRUN", 388 [CC_EVENT_LOST_ERROR] = "CC_EVENT_LOST_ERROR", 389 [CC_UNDEFINED_ERROR] = "CC_UNDEFINED_ERROR", 390 [CC_INVALID_STREAM_ID_ERROR] = "CC_INVALID_STREAM_ID_ERROR", 391 [CC_SECONDARY_BANDWIDTH_ERROR] = "CC_SECONDARY_BANDWIDTH_ERROR", 392 [CC_SPLIT_TRANSACTION_ERROR] = "CC_SPLIT_TRANSACTION_ERROR", 393 }; 394 395 static const char *ep_state_names[] = { 396 [EP_DISABLED] = "disabled", 397 [EP_RUNNING] = "running", 398 [EP_HALTED] = "halted", 399 [EP_STOPPED] = "stopped", 400 [EP_ERROR] = "error", 401 }; 402 403 static const char *lookup_name(uint32_t index, const char **list, uint32_t llen) 404 { 405 if (index >= llen || list[index] == NULL) { 406 return "???"; 407 } 408 return list[index]; 409 } 410 411 static const char *trb_name(XHCITRB *trb) 412 { 413 return lookup_name(TRB_TYPE(*trb), TRBType_names, 414 ARRAY_SIZE(TRBType_names)); 415 } 416 417 static const char *event_name(XHCIEvent *event) 418 { 419 return lookup_name(event->ccode, TRBCCode_names, 420 ARRAY_SIZE(TRBCCode_names)); 421 } 422 423 static const char *ep_state_name(uint32_t state) 424 { 425 return lookup_name(state, ep_state_names, 426 ARRAY_SIZE(ep_state_names)); 427 } 428 429 static bool xhci_get_flag(XHCIState *xhci, enum xhci_flags bit) 430 { 431 return xhci->flags & (1 << bit); 432 } 433 434 static void xhci_set_flag(XHCIState *xhci, enum xhci_flags bit) 435 { 436 xhci->flags |= (1 << bit); 437 } 438 439 static uint64_t xhci_mfindex_get(XHCIState *xhci) 440 { 441 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 442 return (now - xhci->mfindex_start) / 125000; 443 } 444 445 static void xhci_mfwrap_update(XHCIState *xhci) 446 { 447 const uint32_t bits = USBCMD_RS | USBCMD_EWE; 448 uint32_t mfindex, left; 449 int64_t now; 450 451 if ((xhci->usbcmd & bits) == bits) { 452 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 453 mfindex = ((now - xhci->mfindex_start) / 125000) & 0x3fff; 454 left = 0x4000 - mfindex; 455 timer_mod(xhci->mfwrap_timer, now + left * 125000); 456 } else { 457 timer_del(xhci->mfwrap_timer); 458 } 459 } 460 461 static void xhci_mfwrap_timer(void *opaque) 462 { 463 XHCIState *xhci = opaque; 464 XHCIEvent wrap = { ER_MFINDEX_WRAP, CC_SUCCESS }; 465 466 xhci_event(xhci, &wrap, 0); 467 xhci_mfwrap_update(xhci); 468 } 469 470 static inline dma_addr_t xhci_addr64(uint32_t low, uint32_t high) 471 { 472 if (sizeof(dma_addr_t) == 4) { 473 return low; 474 } else { 475 return low | (((dma_addr_t)high << 16) << 16); 476 } 477 } 478 479 static inline dma_addr_t xhci_mask64(uint64_t addr) 480 { 481 if (sizeof(dma_addr_t) == 4) { 482 return addr & 0xffffffff; 483 } else { 484 return addr; 485 } 486 } 487 488 static inline void xhci_dma_read_u32s(XHCIState *xhci, dma_addr_t addr, 489 uint32_t *buf, size_t len) 490 { 491 int i; 492 493 assert((len % sizeof(uint32_t)) == 0); 494 495 pci_dma_read(PCI_DEVICE(xhci), addr, buf, len); 496 497 for (i = 0; i < (len / sizeof(uint32_t)); i++) { 498 buf[i] = le32_to_cpu(buf[i]); 499 } 500 } 501 502 static inline void xhci_dma_write_u32s(XHCIState *xhci, dma_addr_t addr, 503 uint32_t *buf, size_t len) 504 { 505 int i; 506 uint32_t tmp[5]; 507 uint32_t n = len / sizeof(uint32_t); 508 509 assert((len % sizeof(uint32_t)) == 0); 510 assert(n <= ARRAY_SIZE(tmp)); 511 512 for (i = 0; i < n; i++) { 513 tmp[i] = cpu_to_le32(buf[i]); 514 } 515 pci_dma_write(PCI_DEVICE(xhci), addr, tmp, len); 516 } 517 518 static XHCIPort *xhci_lookup_port(XHCIState *xhci, struct USBPort *uport) 519 { 520 int index; 521 522 if (!uport->dev) { 523 return NULL; 524 } 525 switch (uport->dev->speed) { 526 case USB_SPEED_LOW: 527 case USB_SPEED_FULL: 528 case USB_SPEED_HIGH: 529 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 530 index = uport->index + xhci->numports_3; 531 } else { 532 index = uport->index; 533 } 534 break; 535 case USB_SPEED_SUPER: 536 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 537 index = uport->index; 538 } else { 539 index = uport->index + xhci->numports_2; 540 } 541 break; 542 default: 543 return NULL; 544 } 545 return &xhci->ports[index]; 546 } 547 548 static void xhci_intx_update(XHCIState *xhci) 549 { 550 PCIDevice *pci_dev = PCI_DEVICE(xhci); 551 int level = 0; 552 553 if (msix_enabled(pci_dev) || 554 msi_enabled(pci_dev)) { 555 return; 556 } 557 558 if (xhci->intr[0].iman & IMAN_IP && 559 xhci->intr[0].iman & IMAN_IE && 560 xhci->usbcmd & USBCMD_INTE) { 561 level = 1; 562 } 563 564 trace_usb_xhci_irq_intx(level); 565 pci_set_irq(pci_dev, level); 566 } 567 568 static void xhci_msix_update(XHCIState *xhci, int v) 569 { 570 PCIDevice *pci_dev = PCI_DEVICE(xhci); 571 bool enabled; 572 573 if (!msix_enabled(pci_dev)) { 574 return; 575 } 576 577 enabled = xhci->intr[v].iman & IMAN_IE; 578 if (enabled == xhci->intr[v].msix_used) { 579 return; 580 } 581 582 if (enabled) { 583 trace_usb_xhci_irq_msix_use(v); 584 msix_vector_use(pci_dev, v); 585 xhci->intr[v].msix_used = true; 586 } else { 587 trace_usb_xhci_irq_msix_unuse(v); 588 msix_vector_unuse(pci_dev, v); 589 xhci->intr[v].msix_used = false; 590 } 591 } 592 593 static void xhci_intr_raise(XHCIState *xhci, int v) 594 { 595 PCIDevice *pci_dev = PCI_DEVICE(xhci); 596 bool pending = (xhci->intr[v].erdp_low & ERDP_EHB); 597 598 xhci->intr[v].erdp_low |= ERDP_EHB; 599 xhci->intr[v].iman |= IMAN_IP; 600 xhci->usbsts |= USBSTS_EINT; 601 602 if (pending) { 603 return; 604 } 605 if (!(xhci->intr[v].iman & IMAN_IE)) { 606 return; 607 } 608 609 if (!(xhci->usbcmd & USBCMD_INTE)) { 610 return; 611 } 612 613 if (msix_enabled(pci_dev)) { 614 trace_usb_xhci_irq_msix(v); 615 msix_notify(pci_dev, v); 616 return; 617 } 618 619 if (msi_enabled(pci_dev)) { 620 trace_usb_xhci_irq_msi(v); 621 msi_notify(pci_dev, v); 622 return; 623 } 624 625 if (v == 0) { 626 trace_usb_xhci_irq_intx(1); 627 pci_irq_assert(pci_dev); 628 } 629 } 630 631 static inline int xhci_running(XHCIState *xhci) 632 { 633 return !(xhci->usbsts & USBSTS_HCH); 634 } 635 636 static void xhci_die(XHCIState *xhci) 637 { 638 xhci->usbsts |= USBSTS_HCE; 639 DPRINTF("xhci: asserted controller error\n"); 640 } 641 642 static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v) 643 { 644 PCIDevice *pci_dev = PCI_DEVICE(xhci); 645 XHCIInterrupter *intr = &xhci->intr[v]; 646 XHCITRB ev_trb; 647 dma_addr_t addr; 648 649 ev_trb.parameter = cpu_to_le64(event->ptr); 650 ev_trb.status = cpu_to_le32(event->length | (event->ccode << 24)); 651 ev_trb.control = (event->slotid << 24) | (event->epid << 16) | 652 event->flags | (event->type << TRB_TYPE_SHIFT); 653 if (intr->er_pcs) { 654 ev_trb.control |= TRB_C; 655 } 656 ev_trb.control = cpu_to_le32(ev_trb.control); 657 658 trace_usb_xhci_queue_event(v, intr->er_ep_idx, trb_name(&ev_trb), 659 event_name(event), ev_trb.parameter, 660 ev_trb.status, ev_trb.control); 661 662 addr = intr->er_start + TRB_SIZE*intr->er_ep_idx; 663 pci_dma_write(pci_dev, addr, &ev_trb, TRB_SIZE); 664 665 intr->er_ep_idx++; 666 if (intr->er_ep_idx >= intr->er_size) { 667 intr->er_ep_idx = 0; 668 intr->er_pcs = !intr->er_pcs; 669 } 670 } 671 672 static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v) 673 { 674 XHCIInterrupter *intr; 675 dma_addr_t erdp; 676 unsigned int dp_idx; 677 678 if (v >= xhci->numintrs) { 679 DPRINTF("intr nr out of range (%d >= %d)\n", v, xhci->numintrs); 680 return; 681 } 682 intr = &xhci->intr[v]; 683 684 erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 685 if (erdp < intr->er_start || 686 erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { 687 DPRINTF("xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); 688 DPRINTF("xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", 689 v, intr->er_start, intr->er_size); 690 xhci_die(xhci); 691 return; 692 } 693 694 dp_idx = (erdp - intr->er_start) / TRB_SIZE; 695 assert(dp_idx < intr->er_size); 696 697 if ((intr->er_ep_idx + 2) % intr->er_size == dp_idx) { 698 DPRINTF("xhci: ER %d full, send ring full error\n", v); 699 XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; 700 xhci_write_event(xhci, &full, v); 701 } else if ((intr->er_ep_idx + 1) % intr->er_size == dp_idx) { 702 DPRINTF("xhci: ER %d full, drop event\n", v); 703 } else { 704 xhci_write_event(xhci, event, v); 705 } 706 707 xhci_intr_raise(xhci, v); 708 } 709 710 static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring, 711 dma_addr_t base) 712 { 713 ring->dequeue = base; 714 ring->ccs = 1; 715 } 716 717 static TRBType xhci_ring_fetch(XHCIState *xhci, XHCIRing *ring, XHCITRB *trb, 718 dma_addr_t *addr) 719 { 720 PCIDevice *pci_dev = PCI_DEVICE(xhci); 721 uint32_t link_cnt = 0; 722 723 while (1) { 724 TRBType type; 725 pci_dma_read(pci_dev, ring->dequeue, trb, TRB_SIZE); 726 trb->addr = ring->dequeue; 727 trb->ccs = ring->ccs; 728 le64_to_cpus(&trb->parameter); 729 le32_to_cpus(&trb->status); 730 le32_to_cpus(&trb->control); 731 732 trace_usb_xhci_fetch_trb(ring->dequeue, trb_name(trb), 733 trb->parameter, trb->status, trb->control); 734 735 if ((trb->control & TRB_C) != ring->ccs) { 736 return 0; 737 } 738 739 type = TRB_TYPE(*trb); 740 741 if (type != TR_LINK) { 742 if (addr) { 743 *addr = ring->dequeue; 744 } 745 ring->dequeue += TRB_SIZE; 746 return type; 747 } else { 748 if (++link_cnt > TRB_LINK_LIMIT) { 749 trace_usb_xhci_enforced_limit("trb-link"); 750 return 0; 751 } 752 ring->dequeue = xhci_mask64(trb->parameter); 753 if (trb->control & TRB_LK_TC) { 754 ring->ccs = !ring->ccs; 755 } 756 } 757 } 758 } 759 760 static int xhci_ring_chain_length(XHCIState *xhci, const XHCIRing *ring) 761 { 762 PCIDevice *pci_dev = PCI_DEVICE(xhci); 763 XHCITRB trb; 764 int length = 0; 765 dma_addr_t dequeue = ring->dequeue; 766 bool ccs = ring->ccs; 767 /* hack to bundle together the two/three TDs that make a setup transfer */ 768 bool control_td_set = 0; 769 uint32_t link_cnt = 0; 770 771 while (1) { 772 TRBType type; 773 pci_dma_read(pci_dev, dequeue, &trb, TRB_SIZE); 774 le64_to_cpus(&trb.parameter); 775 le32_to_cpus(&trb.status); 776 le32_to_cpus(&trb.control); 777 778 if ((trb.control & TRB_C) != ccs) { 779 return -length; 780 } 781 782 type = TRB_TYPE(trb); 783 784 if (type == TR_LINK) { 785 if (++link_cnt > TRB_LINK_LIMIT) { 786 return -length; 787 } 788 dequeue = xhci_mask64(trb.parameter); 789 if (trb.control & TRB_LK_TC) { 790 ccs = !ccs; 791 } 792 continue; 793 } 794 795 length += 1; 796 dequeue += TRB_SIZE; 797 798 if (type == TR_SETUP) { 799 control_td_set = 1; 800 } else if (type == TR_STATUS) { 801 control_td_set = 0; 802 } 803 804 if (!control_td_set && !(trb.control & TRB_TR_CH)) { 805 return length; 806 } 807 } 808 } 809 810 static void xhci_er_reset(XHCIState *xhci, int v) 811 { 812 XHCIInterrupter *intr = &xhci->intr[v]; 813 XHCIEvRingSeg seg; 814 dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); 815 816 if (intr->erstsz == 0 || erstba == 0) { 817 /* disabled */ 818 intr->er_start = 0; 819 intr->er_size = 0; 820 return; 821 } 822 /* cache the (sole) event ring segment location */ 823 if (intr->erstsz != 1) { 824 DPRINTF("xhci: invalid value for ERSTSZ: %d\n", intr->erstsz); 825 xhci_die(xhci); 826 return; 827 } 828 pci_dma_read(PCI_DEVICE(xhci), erstba, &seg, sizeof(seg)); 829 le32_to_cpus(&seg.addr_low); 830 le32_to_cpus(&seg.addr_high); 831 le32_to_cpus(&seg.size); 832 if (seg.size < 16 || seg.size > 4096) { 833 DPRINTF("xhci: invalid value for segment size: %d\n", seg.size); 834 xhci_die(xhci); 835 return; 836 } 837 intr->er_start = xhci_addr64(seg.addr_low, seg.addr_high); 838 intr->er_size = seg.size; 839 840 intr->er_ep_idx = 0; 841 intr->er_pcs = 1; 842 843 DPRINTF("xhci: event ring[%d]:" DMA_ADDR_FMT " [%d]\n", 844 v, intr->er_start, intr->er_size); 845 } 846 847 static void xhci_run(XHCIState *xhci) 848 { 849 trace_usb_xhci_run(); 850 xhci->usbsts &= ~USBSTS_HCH; 851 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 852 } 853 854 static void xhci_stop(XHCIState *xhci) 855 { 856 trace_usb_xhci_stop(); 857 xhci->usbsts |= USBSTS_HCH; 858 xhci->crcr_low &= ~CRCR_CRR; 859 } 860 861 static XHCIStreamContext *xhci_alloc_stream_contexts(unsigned count, 862 dma_addr_t base) 863 { 864 XHCIStreamContext *stctx; 865 unsigned int i; 866 867 stctx = g_new0(XHCIStreamContext, count); 868 for (i = 0; i < count; i++) { 869 stctx[i].pctx = base + i * 16; 870 stctx[i].sct = -1; 871 } 872 return stctx; 873 } 874 875 static void xhci_reset_streams(XHCIEPContext *epctx) 876 { 877 unsigned int i; 878 879 for (i = 0; i < epctx->nr_pstreams; i++) { 880 epctx->pstreams[i].sct = -1; 881 } 882 } 883 884 static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) 885 { 886 assert(epctx->pstreams == NULL); 887 epctx->nr_pstreams = 2 << epctx->max_pstreams; 888 epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); 889 } 890 891 static void xhci_free_streams(XHCIEPContext *epctx) 892 { 893 assert(epctx->pstreams != NULL); 894 895 g_free(epctx->pstreams); 896 epctx->pstreams = NULL; 897 epctx->nr_pstreams = 0; 898 } 899 900 static int xhci_epmask_to_eps_with_streams(XHCIState *xhci, 901 unsigned int slotid, 902 uint32_t epmask, 903 XHCIEPContext **epctxs, 904 USBEndpoint **eps) 905 { 906 XHCISlot *slot; 907 XHCIEPContext *epctx; 908 USBEndpoint *ep; 909 int i, j; 910 911 assert(slotid >= 1 && slotid <= xhci->numslots); 912 913 slot = &xhci->slots[slotid - 1]; 914 915 for (i = 2, j = 0; i <= 31; i++) { 916 if (!(epmask & (1u << i))) { 917 continue; 918 } 919 920 epctx = slot->eps[i - 1]; 921 ep = xhci_epid_to_usbep(epctx); 922 if (!epctx || !epctx->nr_pstreams || !ep) { 923 continue; 924 } 925 926 if (epctxs) { 927 epctxs[j] = epctx; 928 } 929 eps[j++] = ep; 930 } 931 return j; 932 } 933 934 static void xhci_free_device_streams(XHCIState *xhci, unsigned int slotid, 935 uint32_t epmask) 936 { 937 USBEndpoint *eps[30]; 938 int nr_eps; 939 940 nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, NULL, eps); 941 if (nr_eps) { 942 usb_device_free_streams(eps[0]->dev, eps, nr_eps); 943 } 944 } 945 946 static TRBCCode xhci_alloc_device_streams(XHCIState *xhci, unsigned int slotid, 947 uint32_t epmask) 948 { 949 XHCIEPContext *epctxs[30]; 950 USBEndpoint *eps[30]; 951 int i, r, nr_eps, req_nr_streams, dev_max_streams; 952 953 nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, epctxs, 954 eps); 955 if (nr_eps == 0) { 956 return CC_SUCCESS; 957 } 958 959 req_nr_streams = epctxs[0]->nr_pstreams; 960 dev_max_streams = eps[0]->max_streams; 961 962 for (i = 1; i < nr_eps; i++) { 963 /* 964 * HdG: I don't expect these to ever trigger, but if they do we need 965 * to come up with another solution, ie group identical endpoints 966 * together and make an usb_device_alloc_streams call per group. 967 */ 968 if (epctxs[i]->nr_pstreams != req_nr_streams) { 969 FIXME("guest streams config not identical for all eps"); 970 return CC_RESOURCE_ERROR; 971 } 972 if (eps[i]->max_streams != dev_max_streams) { 973 FIXME("device streams config not identical for all eps"); 974 return CC_RESOURCE_ERROR; 975 } 976 } 977 978 /* 979 * max-streams in both the device descriptor and in the controller is a 980 * power of 2. But stream id 0 is reserved, so if a device can do up to 4 981 * streams the guest will ask for 5 rounded up to the next power of 2 which 982 * becomes 8. For emulated devices usb_device_alloc_streams is a nop. 983 * 984 * For redirected devices however this is an issue, as there we must ask 985 * the real xhci controller to alloc streams, and the host driver for the 986 * real xhci controller will likely disallow allocating more streams then 987 * the device can handle. 988 * 989 * So we limit the requested nr_streams to the maximum number the device 990 * can handle. 991 */ 992 if (req_nr_streams > dev_max_streams) { 993 req_nr_streams = dev_max_streams; 994 } 995 996 r = usb_device_alloc_streams(eps[0]->dev, eps, nr_eps, req_nr_streams); 997 if (r != 0) { 998 DPRINTF("xhci: alloc streams failed\n"); 999 return CC_RESOURCE_ERROR; 1000 } 1001 1002 return CC_SUCCESS; 1003 } 1004 1005 static XHCIStreamContext *xhci_find_stream(XHCIEPContext *epctx, 1006 unsigned int streamid, 1007 uint32_t *cc_error) 1008 { 1009 XHCIStreamContext *sctx; 1010 dma_addr_t base; 1011 uint32_t ctx[2], sct; 1012 1013 assert(streamid != 0); 1014 if (epctx->lsa) { 1015 if (streamid >= epctx->nr_pstreams) { 1016 *cc_error = CC_INVALID_STREAM_ID_ERROR; 1017 return NULL; 1018 } 1019 sctx = epctx->pstreams + streamid; 1020 } else { 1021 FIXME("secondary streams not implemented yet"); 1022 } 1023 1024 if (sctx->sct == -1) { 1025 xhci_dma_read_u32s(epctx->xhci, sctx->pctx, ctx, sizeof(ctx)); 1026 sct = (ctx[0] >> 1) & 0x07; 1027 if (epctx->lsa && sct != 1) { 1028 *cc_error = CC_INVALID_STREAM_TYPE_ERROR; 1029 return NULL; 1030 } 1031 sctx->sct = sct; 1032 base = xhci_addr64(ctx[0] & ~0xf, ctx[1]); 1033 xhci_ring_init(epctx->xhci, &sctx->ring, base); 1034 } 1035 return sctx; 1036 } 1037 1038 static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, 1039 XHCIStreamContext *sctx, uint32_t state) 1040 { 1041 XHCIRing *ring = NULL; 1042 uint32_t ctx[5]; 1043 uint32_t ctx2[2]; 1044 1045 xhci_dma_read_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1046 ctx[0] &= ~EP_STATE_MASK; 1047 ctx[0] |= state; 1048 1049 /* update ring dequeue ptr */ 1050 if (epctx->nr_pstreams) { 1051 if (sctx != NULL) { 1052 ring = &sctx->ring; 1053 xhci_dma_read_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1054 ctx2[0] &= 0xe; 1055 ctx2[0] |= sctx->ring.dequeue | sctx->ring.ccs; 1056 ctx2[1] = (sctx->ring.dequeue >> 16) >> 16; 1057 xhci_dma_write_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); 1058 } 1059 } else { 1060 ring = &epctx->ring; 1061 } 1062 if (ring) { 1063 ctx[2] = ring->dequeue | ring->ccs; 1064 ctx[3] = (ring->dequeue >> 16) >> 16; 1065 1066 DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", 1067 epctx->pctx, state, ctx[3], ctx[2]); 1068 } 1069 1070 xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); 1071 if (epctx->state != state) { 1072 trace_usb_xhci_ep_state(epctx->slotid, epctx->epid, 1073 ep_state_name(epctx->state), 1074 ep_state_name(state)); 1075 } 1076 epctx->state = state; 1077 } 1078 1079 static void xhci_ep_kick_timer(void *opaque) 1080 { 1081 XHCIEPContext *epctx = opaque; 1082 xhci_kick_epctx(epctx, 0); 1083 } 1084 1085 static XHCIEPContext *xhci_alloc_epctx(XHCIState *xhci, 1086 unsigned int slotid, 1087 unsigned int epid) 1088 { 1089 XHCIEPContext *epctx; 1090 1091 epctx = g_new0(XHCIEPContext, 1); 1092 epctx->xhci = xhci; 1093 epctx->slotid = slotid; 1094 epctx->epid = epid; 1095 1096 QTAILQ_INIT(&epctx->transfers); 1097 epctx->kick_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_ep_kick_timer, epctx); 1098 1099 return epctx; 1100 } 1101 1102 static void xhci_init_epctx(XHCIEPContext *epctx, 1103 dma_addr_t pctx, uint32_t *ctx) 1104 { 1105 dma_addr_t dequeue; 1106 1107 dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]); 1108 1109 epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK; 1110 epctx->pctx = pctx; 1111 epctx->max_psize = ctx[1]>>16; 1112 epctx->max_psize *= 1+((ctx[1]>>8)&0xff); 1113 epctx->max_pstreams = (ctx[0] >> 10) & epctx->xhci->max_pstreams_mask; 1114 epctx->lsa = (ctx[0] >> 15) & 1; 1115 if (epctx->max_pstreams) { 1116 xhci_alloc_streams(epctx, dequeue); 1117 } else { 1118 xhci_ring_init(epctx->xhci, &epctx->ring, dequeue); 1119 epctx->ring.ccs = ctx[2] & 1; 1120 } 1121 1122 epctx->interval = 1 << ((ctx[0] >> 16) & 0xff); 1123 } 1124 1125 static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, 1126 unsigned int epid, dma_addr_t pctx, 1127 uint32_t *ctx) 1128 { 1129 XHCISlot *slot; 1130 XHCIEPContext *epctx; 1131 1132 trace_usb_xhci_ep_enable(slotid, epid); 1133 assert(slotid >= 1 && slotid <= xhci->numslots); 1134 assert(epid >= 1 && epid <= 31); 1135 1136 slot = &xhci->slots[slotid-1]; 1137 if (slot->eps[epid-1]) { 1138 xhci_disable_ep(xhci, slotid, epid); 1139 } 1140 1141 epctx = xhci_alloc_epctx(xhci, slotid, epid); 1142 slot->eps[epid-1] = epctx; 1143 xhci_init_epctx(epctx, pctx, ctx); 1144 1145 DPRINTF("xhci: endpoint %d.%d type is %d, max transaction (burst) " 1146 "size is %d\n", epid/2, epid%2, epctx->type, epctx->max_psize); 1147 1148 epctx->mfindex_last = 0; 1149 1150 epctx->state = EP_RUNNING; 1151 ctx[0] &= ~EP_STATE_MASK; 1152 ctx[0] |= EP_RUNNING; 1153 1154 return CC_SUCCESS; 1155 } 1156 1157 static XHCITransfer *xhci_ep_alloc_xfer(XHCIEPContext *epctx, 1158 uint32_t length) 1159 { 1160 uint32_t limit = epctx->nr_pstreams + 16; 1161 XHCITransfer *xfer; 1162 1163 if (epctx->xfer_count >= limit) { 1164 return NULL; 1165 } 1166 1167 xfer = g_new0(XHCITransfer, 1); 1168 xfer->epctx = epctx; 1169 xfer->trbs = g_new(XHCITRB, length); 1170 xfer->trb_count = length; 1171 usb_packet_init(&xfer->packet); 1172 1173 QTAILQ_INSERT_TAIL(&epctx->transfers, xfer, next); 1174 epctx->xfer_count++; 1175 1176 return xfer; 1177 } 1178 1179 static void xhci_ep_free_xfer(XHCITransfer *xfer) 1180 { 1181 QTAILQ_REMOVE(&xfer->epctx->transfers, xfer, next); 1182 xfer->epctx->xfer_count--; 1183 1184 usb_packet_cleanup(&xfer->packet); 1185 g_free(xfer->trbs); 1186 g_free(xfer); 1187 } 1188 1189 static int xhci_ep_nuke_one_xfer(XHCITransfer *t, TRBCCode report) 1190 { 1191 int killed = 0; 1192 1193 if (report && (t->running_async || t->running_retry)) { 1194 t->status = report; 1195 xhci_xfer_report(t); 1196 } 1197 1198 if (t->running_async) { 1199 usb_cancel_packet(&t->packet); 1200 t->running_async = 0; 1201 killed = 1; 1202 } 1203 if (t->running_retry) { 1204 if (t->epctx) { 1205 t->epctx->retry = NULL; 1206 timer_del(t->epctx->kick_timer); 1207 } 1208 t->running_retry = 0; 1209 killed = 1; 1210 } 1211 g_free(t->trbs); 1212 1213 t->trbs = NULL; 1214 t->trb_count = 0; 1215 1216 return killed; 1217 } 1218 1219 static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid, 1220 unsigned int epid, TRBCCode report) 1221 { 1222 XHCISlot *slot; 1223 XHCIEPContext *epctx; 1224 XHCITransfer *xfer; 1225 int killed = 0; 1226 USBEndpoint *ep = NULL; 1227 assert(slotid >= 1 && slotid <= xhci->numslots); 1228 assert(epid >= 1 && epid <= 31); 1229 1230 DPRINTF("xhci_ep_nuke_xfers(%d, %d)\n", slotid, epid); 1231 1232 slot = &xhci->slots[slotid-1]; 1233 1234 if (!slot->eps[epid-1]) { 1235 return 0; 1236 } 1237 1238 epctx = slot->eps[epid-1]; 1239 1240 for (;;) { 1241 xfer = QTAILQ_FIRST(&epctx->transfers); 1242 if (xfer == NULL) { 1243 break; 1244 } 1245 killed += xhci_ep_nuke_one_xfer(xfer, report); 1246 if (killed) { 1247 report = 0; /* Only report once */ 1248 } 1249 xhci_ep_free_xfer(xfer); 1250 } 1251 1252 ep = xhci_epid_to_usbep(epctx); 1253 if (ep) { 1254 usb_device_ep_stopped(ep->dev, ep); 1255 } 1256 return killed; 1257 } 1258 1259 static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, 1260 unsigned int epid) 1261 { 1262 XHCISlot *slot; 1263 XHCIEPContext *epctx; 1264 1265 trace_usb_xhci_ep_disable(slotid, epid); 1266 assert(slotid >= 1 && slotid <= xhci->numslots); 1267 assert(epid >= 1 && epid <= 31); 1268 1269 slot = &xhci->slots[slotid-1]; 1270 1271 if (!slot->eps[epid-1]) { 1272 DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid); 1273 return CC_SUCCESS; 1274 } 1275 1276 xhci_ep_nuke_xfers(xhci, slotid, epid, 0); 1277 1278 epctx = slot->eps[epid-1]; 1279 1280 if (epctx->nr_pstreams) { 1281 xhci_free_streams(epctx); 1282 } 1283 1284 /* only touch guest RAM if we're not resetting the HC */ 1285 if (xhci->dcbaap_low || xhci->dcbaap_high) { 1286 xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED); 1287 } 1288 1289 timer_free(epctx->kick_timer); 1290 g_free(epctx); 1291 slot->eps[epid-1] = NULL; 1292 1293 return CC_SUCCESS; 1294 } 1295 1296 static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid, 1297 unsigned int epid) 1298 { 1299 XHCISlot *slot; 1300 XHCIEPContext *epctx; 1301 1302 trace_usb_xhci_ep_stop(slotid, epid); 1303 assert(slotid >= 1 && slotid <= xhci->numslots); 1304 1305 if (epid < 1 || epid > 31) { 1306 DPRINTF("xhci: bad ep %d\n", epid); 1307 return CC_TRB_ERROR; 1308 } 1309 1310 slot = &xhci->slots[slotid-1]; 1311 1312 if (!slot->eps[epid-1]) { 1313 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1314 return CC_EP_NOT_ENABLED_ERROR; 1315 } 1316 1317 if (xhci_ep_nuke_xfers(xhci, slotid, epid, CC_STOPPED) > 0) { 1318 DPRINTF("xhci: FIXME: endpoint stopped w/ xfers running, " 1319 "data might be lost\n"); 1320 } 1321 1322 epctx = slot->eps[epid-1]; 1323 1324 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1325 1326 if (epctx->nr_pstreams) { 1327 xhci_reset_streams(epctx); 1328 } 1329 1330 return CC_SUCCESS; 1331 } 1332 1333 static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid, 1334 unsigned int epid) 1335 { 1336 XHCISlot *slot; 1337 XHCIEPContext *epctx; 1338 1339 trace_usb_xhci_ep_reset(slotid, epid); 1340 assert(slotid >= 1 && slotid <= xhci->numslots); 1341 1342 if (epid < 1 || epid > 31) { 1343 DPRINTF("xhci: bad ep %d\n", epid); 1344 return CC_TRB_ERROR; 1345 } 1346 1347 slot = &xhci->slots[slotid-1]; 1348 1349 if (!slot->eps[epid-1]) { 1350 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1351 return CC_EP_NOT_ENABLED_ERROR; 1352 } 1353 1354 epctx = slot->eps[epid-1]; 1355 1356 if (epctx->state != EP_HALTED) { 1357 DPRINTF("xhci: reset EP while EP %d not halted (%d)\n", 1358 epid, epctx->state); 1359 return CC_CONTEXT_STATE_ERROR; 1360 } 1361 1362 if (xhci_ep_nuke_xfers(xhci, slotid, epid, 0) > 0) { 1363 DPRINTF("xhci: FIXME: endpoint reset w/ xfers running, " 1364 "data might be lost\n"); 1365 } 1366 1367 if (!xhci->slots[slotid-1].uport || 1368 !xhci->slots[slotid-1].uport->dev || 1369 !xhci->slots[slotid-1].uport->dev->attached) { 1370 return CC_USB_TRANSACTION_ERROR; 1371 } 1372 1373 xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); 1374 1375 if (epctx->nr_pstreams) { 1376 xhci_reset_streams(epctx); 1377 } 1378 1379 return CC_SUCCESS; 1380 } 1381 1382 static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, 1383 unsigned int epid, unsigned int streamid, 1384 uint64_t pdequeue) 1385 { 1386 XHCISlot *slot; 1387 XHCIEPContext *epctx; 1388 XHCIStreamContext *sctx; 1389 dma_addr_t dequeue; 1390 1391 assert(slotid >= 1 && slotid <= xhci->numslots); 1392 1393 if (epid < 1 || epid > 31) { 1394 DPRINTF("xhci: bad ep %d\n", epid); 1395 return CC_TRB_ERROR; 1396 } 1397 1398 trace_usb_xhci_ep_set_dequeue(slotid, epid, streamid, pdequeue); 1399 dequeue = xhci_mask64(pdequeue); 1400 1401 slot = &xhci->slots[slotid-1]; 1402 1403 if (!slot->eps[epid-1]) { 1404 DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); 1405 return CC_EP_NOT_ENABLED_ERROR; 1406 } 1407 1408 epctx = slot->eps[epid-1]; 1409 1410 if (epctx->state != EP_STOPPED) { 1411 DPRINTF("xhci: set EP dequeue pointer while EP %d not stopped\n", epid); 1412 return CC_CONTEXT_STATE_ERROR; 1413 } 1414 1415 if (epctx->nr_pstreams) { 1416 uint32_t err; 1417 sctx = xhci_find_stream(epctx, streamid, &err); 1418 if (sctx == NULL) { 1419 return err; 1420 } 1421 xhci_ring_init(xhci, &sctx->ring, dequeue & ~0xf); 1422 sctx->ring.ccs = dequeue & 1; 1423 } else { 1424 sctx = NULL; 1425 xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); 1426 epctx->ring.ccs = dequeue & 1; 1427 } 1428 1429 xhci_set_ep_state(xhci, epctx, sctx, EP_STOPPED); 1430 1431 return CC_SUCCESS; 1432 } 1433 1434 static int xhci_xfer_create_sgl(XHCITransfer *xfer, int in_xfer) 1435 { 1436 XHCIState *xhci = xfer->epctx->xhci; 1437 int i; 1438 1439 xfer->int_req = false; 1440 pci_dma_sglist_init(&xfer->sgl, PCI_DEVICE(xhci), xfer->trb_count); 1441 for (i = 0; i < xfer->trb_count; i++) { 1442 XHCITRB *trb = &xfer->trbs[i]; 1443 dma_addr_t addr; 1444 unsigned int chunk = 0; 1445 1446 if (trb->control & TRB_TR_IOC) { 1447 xfer->int_req = true; 1448 } 1449 1450 switch (TRB_TYPE(*trb)) { 1451 case TR_DATA: 1452 if ((!(trb->control & TRB_TR_DIR)) != (!in_xfer)) { 1453 DPRINTF("xhci: data direction mismatch for TR_DATA\n"); 1454 goto err; 1455 } 1456 /* fallthrough */ 1457 case TR_NORMAL: 1458 case TR_ISOCH: 1459 addr = xhci_mask64(trb->parameter); 1460 chunk = trb->status & 0x1ffff; 1461 if (trb->control & TRB_TR_IDT) { 1462 if (chunk > 8 || in_xfer) { 1463 DPRINTF("xhci: invalid immediate data TRB\n"); 1464 goto err; 1465 } 1466 qemu_sglist_add(&xfer->sgl, trb->addr, chunk); 1467 } else { 1468 qemu_sglist_add(&xfer->sgl, addr, chunk); 1469 } 1470 break; 1471 } 1472 } 1473 1474 return 0; 1475 1476 err: 1477 qemu_sglist_destroy(&xfer->sgl); 1478 xhci_die(xhci); 1479 return -1; 1480 } 1481 1482 static void xhci_xfer_unmap(XHCITransfer *xfer) 1483 { 1484 usb_packet_unmap(&xfer->packet, &xfer->sgl); 1485 qemu_sglist_destroy(&xfer->sgl); 1486 } 1487 1488 static void xhci_xfer_report(XHCITransfer *xfer) 1489 { 1490 uint32_t edtla = 0; 1491 unsigned int left; 1492 bool reported = 0; 1493 bool shortpkt = 0; 1494 XHCIEvent event = {ER_TRANSFER, CC_SUCCESS}; 1495 XHCIState *xhci = xfer->epctx->xhci; 1496 int i; 1497 1498 left = xfer->packet.actual_length; 1499 1500 for (i = 0; i < xfer->trb_count; i++) { 1501 XHCITRB *trb = &xfer->trbs[i]; 1502 unsigned int chunk = 0; 1503 1504 switch (TRB_TYPE(*trb)) { 1505 case TR_SETUP: 1506 chunk = trb->status & 0x1ffff; 1507 if (chunk > 8) { 1508 chunk = 8; 1509 } 1510 break; 1511 case TR_DATA: 1512 case TR_NORMAL: 1513 case TR_ISOCH: 1514 chunk = trb->status & 0x1ffff; 1515 if (chunk > left) { 1516 chunk = left; 1517 if (xfer->status == CC_SUCCESS) { 1518 shortpkt = 1; 1519 } 1520 } 1521 left -= chunk; 1522 edtla += chunk; 1523 break; 1524 case TR_STATUS: 1525 reported = 0; 1526 shortpkt = 0; 1527 break; 1528 } 1529 1530 if (!reported && ((trb->control & TRB_TR_IOC) || 1531 (shortpkt && (trb->control & TRB_TR_ISP)) || 1532 (xfer->status != CC_SUCCESS && left == 0))) { 1533 event.slotid = xfer->epctx->slotid; 1534 event.epid = xfer->epctx->epid; 1535 event.length = (trb->status & 0x1ffff) - chunk; 1536 event.flags = 0; 1537 event.ptr = trb->addr; 1538 if (xfer->status == CC_SUCCESS) { 1539 event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS; 1540 } else { 1541 event.ccode = xfer->status; 1542 } 1543 if (TRB_TYPE(*trb) == TR_EVDATA) { 1544 event.ptr = trb->parameter; 1545 event.flags |= TRB_EV_ED; 1546 event.length = edtla & 0xffffff; 1547 DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length); 1548 edtla = 0; 1549 } 1550 xhci_event(xhci, &event, TRB_INTR(*trb)); 1551 reported = 1; 1552 if (xfer->status != CC_SUCCESS) { 1553 return; 1554 } 1555 } 1556 1557 switch (TRB_TYPE(*trb)) { 1558 case TR_SETUP: 1559 reported = 0; 1560 shortpkt = 0; 1561 break; 1562 } 1563 1564 } 1565 } 1566 1567 static void xhci_stall_ep(XHCITransfer *xfer) 1568 { 1569 XHCIEPContext *epctx = xfer->epctx; 1570 XHCIState *xhci = epctx->xhci; 1571 uint32_t err; 1572 XHCIStreamContext *sctx; 1573 1574 if (epctx->type == ET_ISO_IN || epctx->type == ET_ISO_OUT) { 1575 /* never halt isoch endpoints, 4.10.2 */ 1576 return; 1577 } 1578 1579 if (epctx->nr_pstreams) { 1580 sctx = xhci_find_stream(epctx, xfer->streamid, &err); 1581 if (sctx == NULL) { 1582 return; 1583 } 1584 sctx->ring.dequeue = xfer->trbs[0].addr; 1585 sctx->ring.ccs = xfer->trbs[0].ccs; 1586 xhci_set_ep_state(xhci, epctx, sctx, EP_HALTED); 1587 } else { 1588 epctx->ring.dequeue = xfer->trbs[0].addr; 1589 epctx->ring.ccs = xfer->trbs[0].ccs; 1590 xhci_set_ep_state(xhci, epctx, NULL, EP_HALTED); 1591 } 1592 } 1593 1594 static int xhci_setup_packet(XHCITransfer *xfer) 1595 { 1596 USBEndpoint *ep; 1597 int dir; 1598 1599 dir = xfer->in_xfer ? USB_TOKEN_IN : USB_TOKEN_OUT; 1600 1601 if (xfer->packet.ep) { 1602 ep = xfer->packet.ep; 1603 } else { 1604 ep = xhci_epid_to_usbep(xfer->epctx); 1605 if (!ep) { 1606 DPRINTF("xhci: slot %d has no device\n", 1607 xfer->epctx->slotid); 1608 return -1; 1609 } 1610 } 1611 1612 xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */ 1613 usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid, 1614 xfer->trbs[0].addr, false, xfer->int_req); 1615 usb_packet_map(&xfer->packet, &xfer->sgl); 1616 DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", 1617 xfer->packet.pid, ep->dev->addr, ep->nr); 1618 return 0; 1619 } 1620 1621 static int xhci_try_complete_packet(XHCITransfer *xfer) 1622 { 1623 if (xfer->packet.status == USB_RET_ASYNC) { 1624 trace_usb_xhci_xfer_async(xfer); 1625 xfer->running_async = 1; 1626 xfer->running_retry = 0; 1627 xfer->complete = 0; 1628 return 0; 1629 } else if (xfer->packet.status == USB_RET_NAK) { 1630 trace_usb_xhci_xfer_nak(xfer); 1631 xfer->running_async = 0; 1632 xfer->running_retry = 1; 1633 xfer->complete = 0; 1634 return 0; 1635 } else { 1636 xfer->running_async = 0; 1637 xfer->running_retry = 0; 1638 xfer->complete = 1; 1639 xhci_xfer_unmap(xfer); 1640 } 1641 1642 if (xfer->packet.status == USB_RET_SUCCESS) { 1643 trace_usb_xhci_xfer_success(xfer, xfer->packet.actual_length); 1644 xfer->status = CC_SUCCESS; 1645 xhci_xfer_report(xfer); 1646 return 0; 1647 } 1648 1649 /* error */ 1650 trace_usb_xhci_xfer_error(xfer, xfer->packet.status); 1651 switch (xfer->packet.status) { 1652 case USB_RET_NODEV: 1653 case USB_RET_IOERROR: 1654 xfer->status = CC_USB_TRANSACTION_ERROR; 1655 xhci_xfer_report(xfer); 1656 xhci_stall_ep(xfer); 1657 break; 1658 case USB_RET_STALL: 1659 xfer->status = CC_STALL_ERROR; 1660 xhci_xfer_report(xfer); 1661 xhci_stall_ep(xfer); 1662 break; 1663 case USB_RET_BABBLE: 1664 xfer->status = CC_BABBLE_DETECTED; 1665 xhci_xfer_report(xfer); 1666 xhci_stall_ep(xfer); 1667 break; 1668 default: 1669 DPRINTF("%s: FIXME: status = %d\n", __func__, 1670 xfer->packet.status); 1671 FIXME("unhandled USB_RET_*"); 1672 } 1673 return 0; 1674 } 1675 1676 static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) 1677 { 1678 XHCITRB *trb_setup, *trb_status; 1679 uint8_t bmRequestType; 1680 1681 trb_setup = &xfer->trbs[0]; 1682 trb_status = &xfer->trbs[xfer->trb_count-1]; 1683 1684 trace_usb_xhci_xfer_start(xfer, xfer->epctx->slotid, 1685 xfer->epctx->epid, xfer->streamid); 1686 1687 /* at most one Event Data TRB allowed after STATUS */ 1688 if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) { 1689 trb_status--; 1690 } 1691 1692 /* do some sanity checks */ 1693 if (TRB_TYPE(*trb_setup) != TR_SETUP) { 1694 DPRINTF("xhci: ep0 first TD not SETUP: %d\n", 1695 TRB_TYPE(*trb_setup)); 1696 return -1; 1697 } 1698 if (TRB_TYPE(*trb_status) != TR_STATUS) { 1699 DPRINTF("xhci: ep0 last TD not STATUS: %d\n", 1700 TRB_TYPE(*trb_status)); 1701 return -1; 1702 } 1703 if (!(trb_setup->control & TRB_TR_IDT)) { 1704 DPRINTF("xhci: Setup TRB doesn't have IDT set\n"); 1705 return -1; 1706 } 1707 if ((trb_setup->status & 0x1ffff) != 8) { 1708 DPRINTF("xhci: Setup TRB has bad length (%d)\n", 1709 (trb_setup->status & 0x1ffff)); 1710 return -1; 1711 } 1712 1713 bmRequestType = trb_setup->parameter; 1714 1715 xfer->in_xfer = bmRequestType & USB_DIR_IN; 1716 xfer->iso_xfer = false; 1717 xfer->timed_xfer = false; 1718 1719 if (xhci_setup_packet(xfer) < 0) { 1720 return -1; 1721 } 1722 xfer->packet.parameter = trb_setup->parameter; 1723 1724 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1725 xhci_try_complete_packet(xfer); 1726 return 0; 1727 } 1728 1729 static void xhci_calc_intr_kick(XHCIState *xhci, XHCITransfer *xfer, 1730 XHCIEPContext *epctx, uint64_t mfindex) 1731 { 1732 uint64_t asap = ((mfindex + epctx->interval - 1) & 1733 ~(epctx->interval-1)); 1734 uint64_t kick = epctx->mfindex_last + epctx->interval; 1735 1736 assert(epctx->interval != 0); 1737 xfer->mfindex_kick = MAX(asap, kick); 1738 } 1739 1740 static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 1741 XHCIEPContext *epctx, uint64_t mfindex) 1742 { 1743 if (xfer->trbs[0].control & TRB_TR_SIA) { 1744 uint64_t asap = ((mfindex + epctx->interval - 1) & 1745 ~(epctx->interval-1)); 1746 if (asap >= epctx->mfindex_last && 1747 asap <= epctx->mfindex_last + epctx->interval * 4) { 1748 xfer->mfindex_kick = epctx->mfindex_last + epctx->interval; 1749 } else { 1750 xfer->mfindex_kick = asap; 1751 } 1752 } else { 1753 xfer->mfindex_kick = ((xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT) 1754 & TRB_TR_FRAMEID_MASK) << 3; 1755 xfer->mfindex_kick |= mfindex & ~0x3fff; 1756 if (xfer->mfindex_kick + 0x100 < mfindex) { 1757 xfer->mfindex_kick += 0x4000; 1758 } 1759 } 1760 } 1761 1762 static void xhci_check_intr_iso_kick(XHCIState *xhci, XHCITransfer *xfer, 1763 XHCIEPContext *epctx, uint64_t mfindex) 1764 { 1765 if (xfer->mfindex_kick > mfindex) { 1766 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 1767 (xfer->mfindex_kick - mfindex) * 125000); 1768 xfer->running_retry = 1; 1769 } else { 1770 epctx->mfindex_last = xfer->mfindex_kick; 1771 timer_del(epctx->kick_timer); 1772 xfer->running_retry = 0; 1773 } 1774 } 1775 1776 1777 static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 1778 { 1779 uint64_t mfindex; 1780 1781 DPRINTF("xhci_submit(slotid=%d,epid=%d)\n", epctx->slotid, epctx->epid); 1782 1783 xfer->in_xfer = epctx->type>>2; 1784 1785 switch(epctx->type) { 1786 case ET_INTR_OUT: 1787 case ET_INTR_IN: 1788 xfer->pkts = 0; 1789 xfer->iso_xfer = false; 1790 xfer->timed_xfer = true; 1791 mfindex = xhci_mfindex_get(xhci); 1792 xhci_calc_intr_kick(xhci, xfer, epctx, mfindex); 1793 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1794 if (xfer->running_retry) { 1795 return -1; 1796 } 1797 break; 1798 case ET_BULK_OUT: 1799 case ET_BULK_IN: 1800 xfer->pkts = 0; 1801 xfer->iso_xfer = false; 1802 xfer->timed_xfer = false; 1803 break; 1804 case ET_ISO_OUT: 1805 case ET_ISO_IN: 1806 xfer->pkts = 1; 1807 xfer->iso_xfer = true; 1808 xfer->timed_xfer = true; 1809 mfindex = xhci_mfindex_get(xhci); 1810 xhci_calc_iso_kick(xhci, xfer, epctx, mfindex); 1811 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1812 if (xfer->running_retry) { 1813 return -1; 1814 } 1815 break; 1816 default: 1817 trace_usb_xhci_unimplemented("endpoint type", epctx->type); 1818 return -1; 1819 } 1820 1821 if (xhci_setup_packet(xfer) < 0) { 1822 return -1; 1823 } 1824 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1825 xhci_try_complete_packet(xfer); 1826 return 0; 1827 } 1828 1829 static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) 1830 { 1831 trace_usb_xhci_xfer_start(xfer, xfer->epctx->slotid, 1832 xfer->epctx->epid, xfer->streamid); 1833 return xhci_submit(xhci, xfer, epctx); 1834 } 1835 1836 static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, 1837 unsigned int epid, unsigned int streamid) 1838 { 1839 XHCIEPContext *epctx; 1840 1841 assert(slotid >= 1 && slotid <= xhci->numslots); 1842 assert(epid >= 1 && epid <= 31); 1843 1844 if (!xhci->slots[slotid-1].enabled) { 1845 DPRINTF("xhci: xhci_kick_ep for disabled slot %d\n", slotid); 1846 return; 1847 } 1848 epctx = xhci->slots[slotid-1].eps[epid-1]; 1849 if (!epctx) { 1850 DPRINTF("xhci: xhci_kick_ep for disabled endpoint %d,%d\n", 1851 epid, slotid); 1852 return; 1853 } 1854 1855 if (epctx->kick_active) { 1856 return; 1857 } 1858 xhci_kick_epctx(epctx, streamid); 1859 } 1860 1861 static void xhci_kick_epctx(XHCIEPContext *epctx, unsigned int streamid) 1862 { 1863 XHCIState *xhci = epctx->xhci; 1864 XHCIStreamContext *stctx = NULL; 1865 XHCITransfer *xfer; 1866 XHCIRing *ring; 1867 USBEndpoint *ep = NULL; 1868 uint64_t mfindex; 1869 unsigned int count = 0; 1870 int length; 1871 int i; 1872 1873 trace_usb_xhci_ep_kick(epctx->slotid, epctx->epid, streamid); 1874 assert(!epctx->kick_active); 1875 1876 /* If the device has been detached, but the guest has not noticed this 1877 yet the 2 above checks will succeed, but we must NOT continue */ 1878 if (!xhci->slots[epctx->slotid - 1].uport || 1879 !xhci->slots[epctx->slotid - 1].uport->dev || 1880 !xhci->slots[epctx->slotid - 1].uport->dev->attached) { 1881 return; 1882 } 1883 1884 if (epctx->retry) { 1885 XHCITransfer *xfer = epctx->retry; 1886 1887 trace_usb_xhci_xfer_retry(xfer); 1888 assert(xfer->running_retry); 1889 if (xfer->timed_xfer) { 1890 /* time to kick the transfer? */ 1891 mfindex = xhci_mfindex_get(xhci); 1892 xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); 1893 if (xfer->running_retry) { 1894 return; 1895 } 1896 xfer->timed_xfer = 0; 1897 xfer->running_retry = 1; 1898 } 1899 if (xfer->iso_xfer) { 1900 /* retry iso transfer */ 1901 if (xhci_setup_packet(xfer) < 0) { 1902 return; 1903 } 1904 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1905 assert(xfer->packet.status != USB_RET_NAK); 1906 xhci_try_complete_packet(xfer); 1907 } else { 1908 /* retry nak'ed transfer */ 1909 if (xhci_setup_packet(xfer) < 0) { 1910 return; 1911 } 1912 usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); 1913 if (xfer->packet.status == USB_RET_NAK) { 1914 return; 1915 } 1916 xhci_try_complete_packet(xfer); 1917 } 1918 assert(!xfer->running_retry); 1919 if (xfer->complete) { 1920 /* update ring dequeue ptr */ 1921 xhci_set_ep_state(xhci, epctx, stctx, epctx->state); 1922 xhci_ep_free_xfer(epctx->retry); 1923 } 1924 epctx->retry = NULL; 1925 } 1926 1927 if (epctx->state == EP_HALTED) { 1928 DPRINTF("xhci: ep halted, not running schedule\n"); 1929 return; 1930 } 1931 1932 1933 if (epctx->nr_pstreams) { 1934 uint32_t err; 1935 stctx = xhci_find_stream(epctx, streamid, &err); 1936 if (stctx == NULL) { 1937 return; 1938 } 1939 ring = &stctx->ring; 1940 xhci_set_ep_state(xhci, epctx, stctx, EP_RUNNING); 1941 } else { 1942 ring = &epctx->ring; 1943 streamid = 0; 1944 xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING); 1945 } 1946 assert(ring->dequeue != 0); 1947 1948 epctx->kick_active++; 1949 while (1) { 1950 length = xhci_ring_chain_length(xhci, ring); 1951 if (length <= 0) { 1952 if (epctx->type == ET_ISO_OUT || epctx->type == ET_ISO_IN) { 1953 /* 4.10.3.1 */ 1954 XHCIEvent ev = { ER_TRANSFER }; 1955 ev.ccode = epctx->type == ET_ISO_IN ? 1956 CC_RING_OVERRUN : CC_RING_UNDERRUN; 1957 ev.slotid = epctx->slotid; 1958 ev.epid = epctx->epid; 1959 ev.ptr = epctx->ring.dequeue; 1960 xhci_event(xhci, &ev, xhci->slots[epctx->slotid-1].intr); 1961 } 1962 break; 1963 } 1964 xfer = xhci_ep_alloc_xfer(epctx, length); 1965 if (xfer == NULL) { 1966 break; 1967 } 1968 1969 for (i = 0; i < length; i++) { 1970 TRBType type; 1971 type = xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL); 1972 if (!type) { 1973 xhci_die(xhci); 1974 xhci_ep_free_xfer(xfer); 1975 epctx->kick_active--; 1976 return; 1977 } 1978 } 1979 xfer->streamid = streamid; 1980 1981 if (epctx->epid == 1) { 1982 xhci_fire_ctl_transfer(xhci, xfer); 1983 } else { 1984 xhci_fire_transfer(xhci, xfer, epctx); 1985 } 1986 if (xfer->complete) { 1987 /* update ring dequeue ptr */ 1988 xhci_set_ep_state(xhci, epctx, stctx, epctx->state); 1989 xhci_ep_free_xfer(xfer); 1990 xfer = NULL; 1991 } 1992 1993 if (epctx->state == EP_HALTED) { 1994 break; 1995 } 1996 if (xfer != NULL && xfer->running_retry) { 1997 DPRINTF("xhci: xfer nacked, stopping schedule\n"); 1998 epctx->retry = xfer; 1999 break; 2000 } 2001 if (count++ > TRANSFER_LIMIT) { 2002 trace_usb_xhci_enforced_limit("transfers"); 2003 break; 2004 } 2005 } 2006 epctx->kick_active--; 2007 2008 ep = xhci_epid_to_usbep(epctx); 2009 if (ep) { 2010 usb_device_flush_ep_queue(ep->dev, ep); 2011 } 2012 } 2013 2014 static TRBCCode xhci_enable_slot(XHCIState *xhci, unsigned int slotid) 2015 { 2016 trace_usb_xhci_slot_enable(slotid); 2017 assert(slotid >= 1 && slotid <= xhci->numslots); 2018 xhci->slots[slotid-1].enabled = 1; 2019 xhci->slots[slotid-1].uport = NULL; 2020 memset(xhci->slots[slotid-1].eps, 0, sizeof(XHCIEPContext*)*31); 2021 2022 return CC_SUCCESS; 2023 } 2024 2025 static TRBCCode xhci_disable_slot(XHCIState *xhci, unsigned int slotid) 2026 { 2027 int i; 2028 2029 trace_usb_xhci_slot_disable(slotid); 2030 assert(slotid >= 1 && slotid <= xhci->numslots); 2031 2032 for (i = 1; i <= 31; i++) { 2033 if (xhci->slots[slotid-1].eps[i-1]) { 2034 xhci_disable_ep(xhci, slotid, i); 2035 } 2036 } 2037 2038 xhci->slots[slotid-1].enabled = 0; 2039 xhci->slots[slotid-1].addressed = 0; 2040 xhci->slots[slotid-1].uport = NULL; 2041 xhci->slots[slotid-1].intr = 0; 2042 return CC_SUCCESS; 2043 } 2044 2045 static USBPort *xhci_lookup_uport(XHCIState *xhci, uint32_t *slot_ctx) 2046 { 2047 USBPort *uport; 2048 char path[32]; 2049 int i, pos, port; 2050 2051 port = (slot_ctx[1]>>16) & 0xFF; 2052 if (port < 1 || port > xhci->numports) { 2053 return NULL; 2054 } 2055 port = xhci->ports[port-1].uport->index+1; 2056 pos = snprintf(path, sizeof(path), "%d", port); 2057 for (i = 0; i < 5; i++) { 2058 port = (slot_ctx[0] >> 4*i) & 0x0f; 2059 if (!port) { 2060 break; 2061 } 2062 pos += snprintf(path + pos, sizeof(path) - pos, ".%d", port); 2063 } 2064 2065 QTAILQ_FOREACH(uport, &xhci->bus.used, next) { 2066 if (strcmp(uport->path, path) == 0) { 2067 return uport; 2068 } 2069 } 2070 return NULL; 2071 } 2072 2073 static TRBCCode xhci_address_slot(XHCIState *xhci, unsigned int slotid, 2074 uint64_t pictx, bool bsr) 2075 { 2076 XHCISlot *slot; 2077 USBPort *uport; 2078 USBDevice *dev; 2079 dma_addr_t ictx, octx, dcbaap; 2080 uint64_t poctx; 2081 uint32_t ictl_ctx[2]; 2082 uint32_t slot_ctx[4]; 2083 uint32_t ep0_ctx[5]; 2084 int i; 2085 TRBCCode res; 2086 2087 assert(slotid >= 1 && slotid <= xhci->numslots); 2088 2089 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 2090 poctx = ldq_le_pci_dma(PCI_DEVICE(xhci), dcbaap + 8 * slotid); 2091 ictx = xhci_mask64(pictx); 2092 octx = xhci_mask64(poctx); 2093 2094 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2095 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2096 2097 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2098 2099 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] != 0x3) { 2100 DPRINTF("xhci: invalid input context control %08x %08x\n", 2101 ictl_ctx[0], ictl_ctx[1]); 2102 return CC_TRB_ERROR; 2103 } 2104 2105 xhci_dma_read_u32s(xhci, ictx+32, slot_ctx, sizeof(slot_ctx)); 2106 xhci_dma_read_u32s(xhci, ictx+64, ep0_ctx, sizeof(ep0_ctx)); 2107 2108 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2109 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2110 2111 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2112 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2113 2114 uport = xhci_lookup_uport(xhci, slot_ctx); 2115 if (uport == NULL) { 2116 DPRINTF("xhci: port not found\n"); 2117 return CC_TRB_ERROR; 2118 } 2119 trace_usb_xhci_slot_address(slotid, uport->path); 2120 2121 dev = uport->dev; 2122 if (!dev || !dev->attached) { 2123 DPRINTF("xhci: port %s not connected\n", uport->path); 2124 return CC_USB_TRANSACTION_ERROR; 2125 } 2126 2127 for (i = 0; i < xhci->numslots; i++) { 2128 if (i == slotid-1) { 2129 continue; 2130 } 2131 if (xhci->slots[i].uport == uport) { 2132 DPRINTF("xhci: port %s already assigned to slot %d\n", 2133 uport->path, i+1); 2134 return CC_TRB_ERROR; 2135 } 2136 } 2137 2138 slot = &xhci->slots[slotid-1]; 2139 slot->uport = uport; 2140 slot->ctx = octx; 2141 slot->intr = get_field(slot_ctx[2], TRB_INTR); 2142 2143 /* Make sure device is in USB_STATE_DEFAULT state */ 2144 usb_device_reset(dev); 2145 if (bsr) { 2146 slot_ctx[3] = SLOT_DEFAULT << SLOT_STATE_SHIFT; 2147 } else { 2148 USBPacket p; 2149 uint8_t buf[1]; 2150 2151 slot_ctx[3] = (SLOT_ADDRESSED << SLOT_STATE_SHIFT) | slotid; 2152 memset(&p, 0, sizeof(p)); 2153 usb_packet_addbuf(&p, buf, sizeof(buf)); 2154 usb_packet_setup(&p, USB_TOKEN_OUT, 2155 usb_ep_get(dev, USB_TOKEN_OUT, 0), 0, 2156 0, false, false); 2157 usb_device_handle_control(dev, &p, 2158 DeviceOutRequest | USB_REQ_SET_ADDRESS, 2159 slotid, 0, 0, NULL); 2160 assert(p.status != USB_RET_ASYNC); 2161 } 2162 2163 res = xhci_enable_ep(xhci, slotid, 1, octx+32, ep0_ctx); 2164 2165 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2166 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2167 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2168 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2169 2170 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2171 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2172 2173 xhci->slots[slotid-1].addressed = 1; 2174 return res; 2175 } 2176 2177 2178 static TRBCCode xhci_configure_slot(XHCIState *xhci, unsigned int slotid, 2179 uint64_t pictx, bool dc) 2180 { 2181 dma_addr_t ictx, octx; 2182 uint32_t ictl_ctx[2]; 2183 uint32_t slot_ctx[4]; 2184 uint32_t islot_ctx[4]; 2185 uint32_t ep_ctx[5]; 2186 int i; 2187 TRBCCode res; 2188 2189 trace_usb_xhci_slot_configure(slotid); 2190 assert(slotid >= 1 && slotid <= xhci->numslots); 2191 2192 ictx = xhci_mask64(pictx); 2193 octx = xhci->slots[slotid-1].ctx; 2194 2195 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2196 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2197 2198 if (dc) { 2199 for (i = 2; i <= 31; i++) { 2200 if (xhci->slots[slotid-1].eps[i-1]) { 2201 xhci_disable_ep(xhci, slotid, i); 2202 } 2203 } 2204 2205 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2206 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2207 slot_ctx[3] |= SLOT_ADDRESSED << SLOT_STATE_SHIFT; 2208 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2209 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2210 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2211 2212 return CC_SUCCESS; 2213 } 2214 2215 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2216 2217 if ((ictl_ctx[0] & 0x3) != 0x0 || (ictl_ctx[1] & 0x3) != 0x1) { 2218 DPRINTF("xhci: invalid input context control %08x %08x\n", 2219 ictl_ctx[0], ictl_ctx[1]); 2220 return CC_TRB_ERROR; 2221 } 2222 2223 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2224 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2225 2226 if (SLOT_STATE(slot_ctx[3]) < SLOT_ADDRESSED) { 2227 DPRINTF("xhci: invalid slot state %08x\n", slot_ctx[3]); 2228 return CC_CONTEXT_STATE_ERROR; 2229 } 2230 2231 xhci_free_device_streams(xhci, slotid, ictl_ctx[0] | ictl_ctx[1]); 2232 2233 for (i = 2; i <= 31; i++) { 2234 if (ictl_ctx[0] & (1<<i)) { 2235 xhci_disable_ep(xhci, slotid, i); 2236 } 2237 if (ictl_ctx[1] & (1<<i)) { 2238 xhci_dma_read_u32s(xhci, ictx+32+(32*i), ep_ctx, sizeof(ep_ctx)); 2239 DPRINTF("xhci: input ep%d.%d context: %08x %08x %08x %08x %08x\n", 2240 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2241 ep_ctx[3], ep_ctx[4]); 2242 xhci_disable_ep(xhci, slotid, i); 2243 res = xhci_enable_ep(xhci, slotid, i, octx+(32*i), ep_ctx); 2244 if (res != CC_SUCCESS) { 2245 return res; 2246 } 2247 DPRINTF("xhci: output ep%d.%d context: %08x %08x %08x %08x %08x\n", 2248 i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], 2249 ep_ctx[3], ep_ctx[4]); 2250 xhci_dma_write_u32s(xhci, octx+(32*i), ep_ctx, sizeof(ep_ctx)); 2251 } 2252 } 2253 2254 res = xhci_alloc_device_streams(xhci, slotid, ictl_ctx[1]); 2255 if (res != CC_SUCCESS) { 2256 for (i = 2; i <= 31; i++) { 2257 if (ictl_ctx[1] & (1u << i)) { 2258 xhci_disable_ep(xhci, slotid, i); 2259 } 2260 } 2261 return res; 2262 } 2263 2264 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2265 slot_ctx[3] |= SLOT_CONFIGURED << SLOT_STATE_SHIFT; 2266 slot_ctx[0] &= ~(SLOT_CONTEXT_ENTRIES_MASK << SLOT_CONTEXT_ENTRIES_SHIFT); 2267 slot_ctx[0] |= islot_ctx[0] & (SLOT_CONTEXT_ENTRIES_MASK << 2268 SLOT_CONTEXT_ENTRIES_SHIFT); 2269 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2270 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2271 2272 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2273 2274 return CC_SUCCESS; 2275 } 2276 2277 2278 static TRBCCode xhci_evaluate_slot(XHCIState *xhci, unsigned int slotid, 2279 uint64_t pictx) 2280 { 2281 dma_addr_t ictx, octx; 2282 uint32_t ictl_ctx[2]; 2283 uint32_t iep0_ctx[5]; 2284 uint32_t ep0_ctx[5]; 2285 uint32_t islot_ctx[4]; 2286 uint32_t slot_ctx[4]; 2287 2288 trace_usb_xhci_slot_evaluate(slotid); 2289 assert(slotid >= 1 && slotid <= xhci->numslots); 2290 2291 ictx = xhci_mask64(pictx); 2292 octx = xhci->slots[slotid-1].ctx; 2293 2294 DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); 2295 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2296 2297 xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); 2298 2299 if (ictl_ctx[0] != 0x0 || ictl_ctx[1] & ~0x3) { 2300 DPRINTF("xhci: invalid input context control %08x %08x\n", 2301 ictl_ctx[0], ictl_ctx[1]); 2302 return CC_TRB_ERROR; 2303 } 2304 2305 if (ictl_ctx[1] & 0x1) { 2306 xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); 2307 2308 DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", 2309 islot_ctx[0], islot_ctx[1], islot_ctx[2], islot_ctx[3]); 2310 2311 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2312 2313 slot_ctx[1] &= ~0xFFFF; /* max exit latency */ 2314 slot_ctx[1] |= islot_ctx[1] & 0xFFFF; 2315 /* update interrupter target field */ 2316 xhci->slots[slotid-1].intr = get_field(islot_ctx[2], TRB_INTR); 2317 set_field(&slot_ctx[2], xhci->slots[slotid-1].intr, TRB_INTR); 2318 2319 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2320 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2321 2322 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2323 } 2324 2325 if (ictl_ctx[1] & 0x2) { 2326 xhci_dma_read_u32s(xhci, ictx+64, iep0_ctx, sizeof(iep0_ctx)); 2327 2328 DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", 2329 iep0_ctx[0], iep0_ctx[1], iep0_ctx[2], 2330 iep0_ctx[3], iep0_ctx[4]); 2331 2332 xhci_dma_read_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2333 2334 ep0_ctx[1] &= ~0xFFFF0000; /* max packet size*/ 2335 ep0_ctx[1] |= iep0_ctx[1] & 0xFFFF0000; 2336 2337 DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", 2338 ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); 2339 2340 xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); 2341 } 2342 2343 return CC_SUCCESS; 2344 } 2345 2346 static TRBCCode xhci_reset_slot(XHCIState *xhci, unsigned int slotid) 2347 { 2348 uint32_t slot_ctx[4]; 2349 dma_addr_t octx; 2350 int i; 2351 2352 trace_usb_xhci_slot_reset(slotid); 2353 assert(slotid >= 1 && slotid <= xhci->numslots); 2354 2355 octx = xhci->slots[slotid-1].ctx; 2356 2357 DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); 2358 2359 for (i = 2; i <= 31; i++) { 2360 if (xhci->slots[slotid-1].eps[i-1]) { 2361 xhci_disable_ep(xhci, slotid, i); 2362 } 2363 } 2364 2365 xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2366 slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); 2367 slot_ctx[3] |= SLOT_DEFAULT << SLOT_STATE_SHIFT; 2368 DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", 2369 slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); 2370 xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); 2371 2372 return CC_SUCCESS; 2373 } 2374 2375 static unsigned int xhci_get_slot(XHCIState *xhci, XHCIEvent *event, XHCITRB *trb) 2376 { 2377 unsigned int slotid; 2378 slotid = (trb->control >> TRB_CR_SLOTID_SHIFT) & TRB_CR_SLOTID_MASK; 2379 if (slotid < 1 || slotid > xhci->numslots) { 2380 DPRINTF("xhci: bad slot id %d\n", slotid); 2381 event->ccode = CC_TRB_ERROR; 2382 return 0; 2383 } else if (!xhci->slots[slotid-1].enabled) { 2384 DPRINTF("xhci: slot id %d not enabled\n", slotid); 2385 event->ccode = CC_SLOT_NOT_ENABLED_ERROR; 2386 return 0; 2387 } 2388 return slotid; 2389 } 2390 2391 /* cleanup slot state on usb device detach */ 2392 static void xhci_detach_slot(XHCIState *xhci, USBPort *uport) 2393 { 2394 int slot, ep; 2395 2396 for (slot = 0; slot < xhci->numslots; slot++) { 2397 if (xhci->slots[slot].uport == uport) { 2398 break; 2399 } 2400 } 2401 if (slot == xhci->numslots) { 2402 return; 2403 } 2404 2405 for (ep = 0; ep < 31; ep++) { 2406 if (xhci->slots[slot].eps[ep]) { 2407 xhci_ep_nuke_xfers(xhci, slot + 1, ep + 1, 0); 2408 } 2409 } 2410 xhci->slots[slot].uport = NULL; 2411 } 2412 2413 static TRBCCode xhci_get_port_bandwidth(XHCIState *xhci, uint64_t pctx) 2414 { 2415 dma_addr_t ctx; 2416 uint8_t bw_ctx[xhci->numports+1]; 2417 2418 DPRINTF("xhci_get_port_bandwidth()\n"); 2419 2420 ctx = xhci_mask64(pctx); 2421 2422 DPRINTF("xhci: bandwidth context at "DMA_ADDR_FMT"\n", ctx); 2423 2424 /* TODO: actually implement real values here */ 2425 bw_ctx[0] = 0; 2426 memset(&bw_ctx[1], 80, xhci->numports); /* 80% */ 2427 pci_dma_write(PCI_DEVICE(xhci), ctx, bw_ctx, sizeof(bw_ctx)); 2428 2429 return CC_SUCCESS; 2430 } 2431 2432 static uint32_t rotl(uint32_t v, unsigned count) 2433 { 2434 count &= 31; 2435 return (v << count) | (v >> (32 - count)); 2436 } 2437 2438 2439 static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo) 2440 { 2441 uint32_t val; 2442 val = rotl(lo - 0x49434878, 32 - ((hi>>8) & 0x1F)); 2443 val += rotl(lo + 0x49434878, hi & 0x1F); 2444 val -= rotl(hi ^ 0x49434878, (lo >> 16) & 0x1F); 2445 return ~val; 2446 } 2447 2448 static void xhci_process_commands(XHCIState *xhci) 2449 { 2450 XHCITRB trb; 2451 TRBType type; 2452 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS}; 2453 dma_addr_t addr; 2454 unsigned int i, slotid = 0, count = 0; 2455 2456 DPRINTF("xhci_process_commands()\n"); 2457 if (!xhci_running(xhci)) { 2458 DPRINTF("xhci_process_commands() called while xHC stopped or paused\n"); 2459 return; 2460 } 2461 2462 xhci->crcr_low |= CRCR_CRR; 2463 2464 while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) { 2465 event.ptr = addr; 2466 switch (type) { 2467 case CR_ENABLE_SLOT: 2468 for (i = 0; i < xhci->numslots; i++) { 2469 if (!xhci->slots[i].enabled) { 2470 break; 2471 } 2472 } 2473 if (i >= xhci->numslots) { 2474 DPRINTF("xhci: no device slots available\n"); 2475 event.ccode = CC_NO_SLOTS_ERROR; 2476 } else { 2477 slotid = i+1; 2478 event.ccode = xhci_enable_slot(xhci, slotid); 2479 } 2480 break; 2481 case CR_DISABLE_SLOT: 2482 slotid = xhci_get_slot(xhci, &event, &trb); 2483 if (slotid) { 2484 event.ccode = xhci_disable_slot(xhci, slotid); 2485 } 2486 break; 2487 case CR_ADDRESS_DEVICE: 2488 slotid = xhci_get_slot(xhci, &event, &trb); 2489 if (slotid) { 2490 event.ccode = xhci_address_slot(xhci, slotid, trb.parameter, 2491 trb.control & TRB_CR_BSR); 2492 } 2493 break; 2494 case CR_CONFIGURE_ENDPOINT: 2495 slotid = xhci_get_slot(xhci, &event, &trb); 2496 if (slotid) { 2497 event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter, 2498 trb.control & TRB_CR_DC); 2499 } 2500 break; 2501 case CR_EVALUATE_CONTEXT: 2502 slotid = xhci_get_slot(xhci, &event, &trb); 2503 if (slotid) { 2504 event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter); 2505 } 2506 break; 2507 case CR_STOP_ENDPOINT: 2508 slotid = xhci_get_slot(xhci, &event, &trb); 2509 if (slotid) { 2510 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2511 & TRB_CR_EPID_MASK; 2512 event.ccode = xhci_stop_ep(xhci, slotid, epid); 2513 } 2514 break; 2515 case CR_RESET_ENDPOINT: 2516 slotid = xhci_get_slot(xhci, &event, &trb); 2517 if (slotid) { 2518 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2519 & TRB_CR_EPID_MASK; 2520 event.ccode = xhci_reset_ep(xhci, slotid, epid); 2521 } 2522 break; 2523 case CR_SET_TR_DEQUEUE: 2524 slotid = xhci_get_slot(xhci, &event, &trb); 2525 if (slotid) { 2526 unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) 2527 & TRB_CR_EPID_MASK; 2528 unsigned int streamid = (trb.status >> 16) & 0xffff; 2529 event.ccode = xhci_set_ep_dequeue(xhci, slotid, 2530 epid, streamid, 2531 trb.parameter); 2532 } 2533 break; 2534 case CR_RESET_DEVICE: 2535 slotid = xhci_get_slot(xhci, &event, &trb); 2536 if (slotid) { 2537 event.ccode = xhci_reset_slot(xhci, slotid); 2538 } 2539 break; 2540 case CR_GET_PORT_BANDWIDTH: 2541 event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter); 2542 break; 2543 case CR_VENDOR_NEC_FIRMWARE_REVISION: 2544 if (xhci->nec_quirks) { 2545 event.type = 48; /* NEC reply */ 2546 event.length = 0x3025; 2547 } else { 2548 event.ccode = CC_TRB_ERROR; 2549 } 2550 break; 2551 case CR_VENDOR_NEC_CHALLENGE_RESPONSE: 2552 if (xhci->nec_quirks) { 2553 uint32_t chi = trb.parameter >> 32; 2554 uint32_t clo = trb.parameter; 2555 uint32_t val = xhci_nec_challenge(chi, clo); 2556 event.length = val & 0xFFFF; 2557 event.epid = val >> 16; 2558 slotid = val >> 24; 2559 event.type = 48; /* NEC reply */ 2560 } else { 2561 event.ccode = CC_TRB_ERROR; 2562 } 2563 break; 2564 default: 2565 trace_usb_xhci_unimplemented("command", type); 2566 event.ccode = CC_TRB_ERROR; 2567 break; 2568 } 2569 event.slotid = slotid; 2570 xhci_event(xhci, &event, 0); 2571 2572 if (count++ > COMMAND_LIMIT) { 2573 trace_usb_xhci_enforced_limit("commands"); 2574 return; 2575 } 2576 } 2577 } 2578 2579 static bool xhci_port_have_device(XHCIPort *port) 2580 { 2581 if (!port->uport->dev || !port->uport->dev->attached) { 2582 return false; /* no device present */ 2583 } 2584 if (!((1 << port->uport->dev->speed) & port->speedmask)) { 2585 return false; /* speed mismatch */ 2586 } 2587 return true; 2588 } 2589 2590 static void xhci_port_notify(XHCIPort *port, uint32_t bits) 2591 { 2592 XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS, 2593 port->portnr << 24 }; 2594 2595 if ((port->portsc & bits) == bits) { 2596 return; 2597 } 2598 trace_usb_xhci_port_notify(port->portnr, bits); 2599 port->portsc |= bits; 2600 if (!xhci_running(port->xhci)) { 2601 return; 2602 } 2603 xhci_event(port->xhci, &ev, 0); 2604 } 2605 2606 static void xhci_port_update(XHCIPort *port, int is_detach) 2607 { 2608 uint32_t pls = PLS_RX_DETECT; 2609 2610 port->portsc = PORTSC_PP; 2611 if (!is_detach && xhci_port_have_device(port)) { 2612 port->portsc |= PORTSC_CCS; 2613 switch (port->uport->dev->speed) { 2614 case USB_SPEED_LOW: 2615 port->portsc |= PORTSC_SPEED_LOW; 2616 pls = PLS_POLLING; 2617 break; 2618 case USB_SPEED_FULL: 2619 port->portsc |= PORTSC_SPEED_FULL; 2620 pls = PLS_POLLING; 2621 break; 2622 case USB_SPEED_HIGH: 2623 port->portsc |= PORTSC_SPEED_HIGH; 2624 pls = PLS_POLLING; 2625 break; 2626 case USB_SPEED_SUPER: 2627 port->portsc |= PORTSC_SPEED_SUPER; 2628 port->portsc |= PORTSC_PED; 2629 pls = PLS_U0; 2630 break; 2631 } 2632 } 2633 set_field(&port->portsc, pls, PORTSC_PLS); 2634 trace_usb_xhci_port_link(port->portnr, pls); 2635 xhci_port_notify(port, PORTSC_CSC); 2636 } 2637 2638 static void xhci_port_reset(XHCIPort *port, bool warm_reset) 2639 { 2640 trace_usb_xhci_port_reset(port->portnr, warm_reset); 2641 2642 if (!xhci_port_have_device(port)) { 2643 return; 2644 } 2645 2646 usb_device_reset(port->uport->dev); 2647 2648 switch (port->uport->dev->speed) { 2649 case USB_SPEED_SUPER: 2650 if (warm_reset) { 2651 port->portsc |= PORTSC_WRC; 2652 } 2653 /* fall through */ 2654 case USB_SPEED_LOW: 2655 case USB_SPEED_FULL: 2656 case USB_SPEED_HIGH: 2657 set_field(&port->portsc, PLS_U0, PORTSC_PLS); 2658 trace_usb_xhci_port_link(port->portnr, PLS_U0); 2659 port->portsc |= PORTSC_PED; 2660 break; 2661 } 2662 2663 port->portsc &= ~PORTSC_PR; 2664 xhci_port_notify(port, PORTSC_PRC); 2665 } 2666 2667 static void xhci_reset(DeviceState *dev) 2668 { 2669 XHCIState *xhci = XHCI(dev); 2670 int i; 2671 2672 trace_usb_xhci_reset(); 2673 if (!(xhci->usbsts & USBSTS_HCH)) { 2674 DPRINTF("xhci: reset while running!\n"); 2675 } 2676 2677 xhci->usbcmd = 0; 2678 xhci->usbsts = USBSTS_HCH; 2679 xhci->dnctrl = 0; 2680 xhci->crcr_low = 0; 2681 xhci->crcr_high = 0; 2682 xhci->dcbaap_low = 0; 2683 xhci->dcbaap_high = 0; 2684 xhci->config = 0; 2685 2686 for (i = 0; i < xhci->numslots; i++) { 2687 xhci_disable_slot(xhci, i+1); 2688 } 2689 2690 for (i = 0; i < xhci->numports; i++) { 2691 xhci_port_update(xhci->ports + i, 0); 2692 } 2693 2694 for (i = 0; i < xhci->numintrs; i++) { 2695 xhci->intr[i].iman = 0; 2696 xhci->intr[i].imod = 0; 2697 xhci->intr[i].erstsz = 0; 2698 xhci->intr[i].erstba_low = 0; 2699 xhci->intr[i].erstba_high = 0; 2700 xhci->intr[i].erdp_low = 0; 2701 xhci->intr[i].erdp_high = 0; 2702 xhci->intr[i].msix_used = 0; 2703 2704 xhci->intr[i].er_ep_idx = 0; 2705 xhci->intr[i].er_pcs = 1; 2706 xhci->intr[i].ev_buffer_put = 0; 2707 xhci->intr[i].ev_buffer_get = 0; 2708 } 2709 2710 xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 2711 xhci_mfwrap_update(xhci); 2712 } 2713 2714 static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size) 2715 { 2716 XHCIState *xhci = ptr; 2717 uint32_t ret; 2718 2719 switch (reg) { 2720 case 0x00: /* HCIVERSION, CAPLENGTH */ 2721 ret = 0x01000000 | LEN_CAP; 2722 break; 2723 case 0x04: /* HCSPARAMS 1 */ 2724 ret = ((xhci->numports_2+xhci->numports_3)<<24) 2725 | (xhci->numintrs<<8) | xhci->numslots; 2726 break; 2727 case 0x08: /* HCSPARAMS 2 */ 2728 ret = 0x0000000f; 2729 break; 2730 case 0x0c: /* HCSPARAMS 3 */ 2731 ret = 0x00000000; 2732 break; 2733 case 0x10: /* HCCPARAMS */ 2734 if (sizeof(dma_addr_t) == 4) { 2735 ret = 0x00080000 | (xhci->max_pstreams_mask << 12); 2736 } else { 2737 ret = 0x00080001 | (xhci->max_pstreams_mask << 12); 2738 } 2739 break; 2740 case 0x14: /* DBOFF */ 2741 ret = OFF_DOORBELL; 2742 break; 2743 case 0x18: /* RTSOFF */ 2744 ret = OFF_RUNTIME; 2745 break; 2746 2747 /* extended capabilities */ 2748 case 0x20: /* Supported Protocol:00 */ 2749 ret = 0x02000402; /* USB 2.0 */ 2750 break; 2751 case 0x24: /* Supported Protocol:04 */ 2752 ret = 0x20425355; /* "USB " */ 2753 break; 2754 case 0x28: /* Supported Protocol:08 */ 2755 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 2756 ret = (xhci->numports_2<<8) | (xhci->numports_3+1); 2757 } else { 2758 ret = (xhci->numports_2<<8) | 1; 2759 } 2760 break; 2761 case 0x2c: /* Supported Protocol:0c */ 2762 ret = 0x00000000; /* reserved */ 2763 break; 2764 case 0x30: /* Supported Protocol:00 */ 2765 ret = 0x03000002; /* USB 3.0 */ 2766 break; 2767 case 0x34: /* Supported Protocol:04 */ 2768 ret = 0x20425355; /* "USB " */ 2769 break; 2770 case 0x38: /* Supported Protocol:08 */ 2771 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 2772 ret = (xhci->numports_3<<8) | 1; 2773 } else { 2774 ret = (xhci->numports_3<<8) | (xhci->numports_2+1); 2775 } 2776 break; 2777 case 0x3c: /* Supported Protocol:0c */ 2778 ret = 0x00000000; /* reserved */ 2779 break; 2780 default: 2781 trace_usb_xhci_unimplemented("cap read", reg); 2782 ret = 0; 2783 } 2784 2785 trace_usb_xhci_cap_read(reg, ret); 2786 return ret; 2787 } 2788 2789 static uint64_t xhci_port_read(void *ptr, hwaddr reg, unsigned size) 2790 { 2791 XHCIPort *port = ptr; 2792 uint32_t ret; 2793 2794 switch (reg) { 2795 case 0x00: /* PORTSC */ 2796 ret = port->portsc; 2797 break; 2798 case 0x04: /* PORTPMSC */ 2799 case 0x08: /* PORTLI */ 2800 ret = 0; 2801 break; 2802 case 0x0c: /* reserved */ 2803 default: 2804 trace_usb_xhci_unimplemented("port read", reg); 2805 ret = 0; 2806 } 2807 2808 trace_usb_xhci_port_read(port->portnr, reg, ret); 2809 return ret; 2810 } 2811 2812 static void xhci_port_write(void *ptr, hwaddr reg, 2813 uint64_t val, unsigned size) 2814 { 2815 XHCIPort *port = ptr; 2816 uint32_t portsc, notify; 2817 2818 trace_usb_xhci_port_write(port->portnr, reg, val); 2819 2820 switch (reg) { 2821 case 0x00: /* PORTSC */ 2822 /* write-1-to-start bits */ 2823 if (val & PORTSC_WPR) { 2824 xhci_port_reset(port, true); 2825 break; 2826 } 2827 if (val & PORTSC_PR) { 2828 xhci_port_reset(port, false); 2829 break; 2830 } 2831 2832 portsc = port->portsc; 2833 notify = 0; 2834 /* write-1-to-clear bits*/ 2835 portsc &= ~(val & (PORTSC_CSC|PORTSC_PEC|PORTSC_WRC|PORTSC_OCC| 2836 PORTSC_PRC|PORTSC_PLC|PORTSC_CEC)); 2837 if (val & PORTSC_LWS) { 2838 /* overwrite PLS only when LWS=1 */ 2839 uint32_t old_pls = get_field(port->portsc, PORTSC_PLS); 2840 uint32_t new_pls = get_field(val, PORTSC_PLS); 2841 switch (new_pls) { 2842 case PLS_U0: 2843 if (old_pls != PLS_U0) { 2844 set_field(&portsc, new_pls, PORTSC_PLS); 2845 trace_usb_xhci_port_link(port->portnr, new_pls); 2846 notify = PORTSC_PLC; 2847 } 2848 break; 2849 case PLS_U3: 2850 if (old_pls < PLS_U3) { 2851 set_field(&portsc, new_pls, PORTSC_PLS); 2852 trace_usb_xhci_port_link(port->portnr, new_pls); 2853 } 2854 break; 2855 case PLS_RESUME: 2856 /* windows does this for some reason, don't spam stderr */ 2857 break; 2858 default: 2859 DPRINTF("%s: ignore pls write (old %d, new %d)\n", 2860 __func__, old_pls, new_pls); 2861 break; 2862 } 2863 } 2864 /* read/write bits */ 2865 portsc &= ~(PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE); 2866 portsc |= (val & (PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE)); 2867 port->portsc = portsc; 2868 if (notify) { 2869 xhci_port_notify(port, notify); 2870 } 2871 break; 2872 case 0x04: /* PORTPMSC */ 2873 case 0x08: /* PORTLI */ 2874 default: 2875 trace_usb_xhci_unimplemented("port write", reg); 2876 } 2877 } 2878 2879 static uint64_t xhci_oper_read(void *ptr, hwaddr reg, unsigned size) 2880 { 2881 XHCIState *xhci = ptr; 2882 uint32_t ret; 2883 2884 switch (reg) { 2885 case 0x00: /* USBCMD */ 2886 ret = xhci->usbcmd; 2887 break; 2888 case 0x04: /* USBSTS */ 2889 ret = xhci->usbsts; 2890 break; 2891 case 0x08: /* PAGESIZE */ 2892 ret = 1; /* 4KiB */ 2893 break; 2894 case 0x14: /* DNCTRL */ 2895 ret = xhci->dnctrl; 2896 break; 2897 case 0x18: /* CRCR low */ 2898 ret = xhci->crcr_low & ~0xe; 2899 break; 2900 case 0x1c: /* CRCR high */ 2901 ret = xhci->crcr_high; 2902 break; 2903 case 0x30: /* DCBAAP low */ 2904 ret = xhci->dcbaap_low; 2905 break; 2906 case 0x34: /* DCBAAP high */ 2907 ret = xhci->dcbaap_high; 2908 break; 2909 case 0x38: /* CONFIG */ 2910 ret = xhci->config; 2911 break; 2912 default: 2913 trace_usb_xhci_unimplemented("oper read", reg); 2914 ret = 0; 2915 } 2916 2917 trace_usb_xhci_oper_read(reg, ret); 2918 return ret; 2919 } 2920 2921 static void xhci_oper_write(void *ptr, hwaddr reg, 2922 uint64_t val, unsigned size) 2923 { 2924 XHCIState *xhci = ptr; 2925 DeviceState *d = DEVICE(ptr); 2926 2927 trace_usb_xhci_oper_write(reg, val); 2928 2929 switch (reg) { 2930 case 0x00: /* USBCMD */ 2931 if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) { 2932 xhci_run(xhci); 2933 } else if (!(val & USBCMD_RS) && (xhci->usbcmd & USBCMD_RS)) { 2934 xhci_stop(xhci); 2935 } 2936 if (val & USBCMD_CSS) { 2937 /* save state */ 2938 xhci->usbsts &= ~USBSTS_SRE; 2939 } 2940 if (val & USBCMD_CRS) { 2941 /* restore state */ 2942 xhci->usbsts |= USBSTS_SRE; 2943 } 2944 xhci->usbcmd = val & 0xc0f; 2945 xhci_mfwrap_update(xhci); 2946 if (val & USBCMD_HCRST) { 2947 xhci_reset(d); 2948 } 2949 xhci_intx_update(xhci); 2950 break; 2951 2952 case 0x04: /* USBSTS */ 2953 /* these bits are write-1-to-clear */ 2954 xhci->usbsts &= ~(val & (USBSTS_HSE|USBSTS_EINT|USBSTS_PCD|USBSTS_SRE)); 2955 xhci_intx_update(xhci); 2956 break; 2957 2958 case 0x14: /* DNCTRL */ 2959 xhci->dnctrl = val & 0xffff; 2960 break; 2961 case 0x18: /* CRCR low */ 2962 xhci->crcr_low = (val & 0xffffffcf) | (xhci->crcr_low & CRCR_CRR); 2963 break; 2964 case 0x1c: /* CRCR high */ 2965 xhci->crcr_high = val; 2966 if (xhci->crcr_low & (CRCR_CA|CRCR_CS) && (xhci->crcr_low & CRCR_CRR)) { 2967 XHCIEvent event = {ER_COMMAND_COMPLETE, CC_COMMAND_RING_STOPPED}; 2968 xhci->crcr_low &= ~CRCR_CRR; 2969 xhci_event(xhci, &event, 0); 2970 DPRINTF("xhci: command ring stopped (CRCR=%08x)\n", xhci->crcr_low); 2971 } else { 2972 dma_addr_t base = xhci_addr64(xhci->crcr_low & ~0x3f, val); 2973 xhci_ring_init(xhci, &xhci->cmd_ring, base); 2974 } 2975 xhci->crcr_low &= ~(CRCR_CA | CRCR_CS); 2976 break; 2977 case 0x30: /* DCBAAP low */ 2978 xhci->dcbaap_low = val & 0xffffffc0; 2979 break; 2980 case 0x34: /* DCBAAP high */ 2981 xhci->dcbaap_high = val; 2982 break; 2983 case 0x38: /* CONFIG */ 2984 xhci->config = val & 0xff; 2985 break; 2986 default: 2987 trace_usb_xhci_unimplemented("oper write", reg); 2988 } 2989 } 2990 2991 static uint64_t xhci_runtime_read(void *ptr, hwaddr reg, 2992 unsigned size) 2993 { 2994 XHCIState *xhci = ptr; 2995 uint32_t ret = 0; 2996 2997 if (reg < 0x20) { 2998 switch (reg) { 2999 case 0x00: /* MFINDEX */ 3000 ret = xhci_mfindex_get(xhci) & 0x3fff; 3001 break; 3002 default: 3003 trace_usb_xhci_unimplemented("runtime read", reg); 3004 break; 3005 } 3006 } else { 3007 int v = (reg - 0x20) / 0x20; 3008 XHCIInterrupter *intr = &xhci->intr[v]; 3009 switch (reg & 0x1f) { 3010 case 0x00: /* IMAN */ 3011 ret = intr->iman; 3012 break; 3013 case 0x04: /* IMOD */ 3014 ret = intr->imod; 3015 break; 3016 case 0x08: /* ERSTSZ */ 3017 ret = intr->erstsz; 3018 break; 3019 case 0x10: /* ERSTBA low */ 3020 ret = intr->erstba_low; 3021 break; 3022 case 0x14: /* ERSTBA high */ 3023 ret = intr->erstba_high; 3024 break; 3025 case 0x18: /* ERDP low */ 3026 ret = intr->erdp_low; 3027 break; 3028 case 0x1c: /* ERDP high */ 3029 ret = intr->erdp_high; 3030 break; 3031 } 3032 } 3033 3034 trace_usb_xhci_runtime_read(reg, ret); 3035 return ret; 3036 } 3037 3038 static void xhci_runtime_write(void *ptr, hwaddr reg, 3039 uint64_t val, unsigned size) 3040 { 3041 XHCIState *xhci = ptr; 3042 int v = (reg - 0x20) / 0x20; 3043 XHCIInterrupter *intr = &xhci->intr[v]; 3044 trace_usb_xhci_runtime_write(reg, val); 3045 3046 if (reg < 0x20) { 3047 trace_usb_xhci_unimplemented("runtime write", reg); 3048 return; 3049 } 3050 3051 switch (reg & 0x1f) { 3052 case 0x00: /* IMAN */ 3053 if (val & IMAN_IP) { 3054 intr->iman &= ~IMAN_IP; 3055 } 3056 intr->iman &= ~IMAN_IE; 3057 intr->iman |= val & IMAN_IE; 3058 if (v == 0) { 3059 xhci_intx_update(xhci); 3060 } 3061 xhci_msix_update(xhci, v); 3062 break; 3063 case 0x04: /* IMOD */ 3064 intr->imod = val; 3065 break; 3066 case 0x08: /* ERSTSZ */ 3067 intr->erstsz = val & 0xffff; 3068 break; 3069 case 0x10: /* ERSTBA low */ 3070 if (xhci->nec_quirks) { 3071 /* NEC driver bug: it doesn't align this to 64 bytes */ 3072 intr->erstba_low = val & 0xfffffff0; 3073 } else { 3074 intr->erstba_low = val & 0xffffffc0; 3075 } 3076 break; 3077 case 0x14: /* ERSTBA high */ 3078 intr->erstba_high = val; 3079 xhci_er_reset(xhci, v); 3080 break; 3081 case 0x18: /* ERDP low */ 3082 if (val & ERDP_EHB) { 3083 intr->erdp_low &= ~ERDP_EHB; 3084 } 3085 intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB); 3086 if (val & ERDP_EHB) { 3087 dma_addr_t erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); 3088 unsigned int dp_idx = (erdp - intr->er_start) / TRB_SIZE; 3089 if (erdp >= intr->er_start && 3090 erdp < (intr->er_start + TRB_SIZE * intr->er_size) && 3091 dp_idx != intr->er_ep_idx) { 3092 xhci_intr_raise(xhci, v); 3093 } 3094 } 3095 break; 3096 case 0x1c: /* ERDP high */ 3097 intr->erdp_high = val; 3098 break; 3099 default: 3100 trace_usb_xhci_unimplemented("oper write", reg); 3101 } 3102 } 3103 3104 static uint64_t xhci_doorbell_read(void *ptr, hwaddr reg, 3105 unsigned size) 3106 { 3107 /* doorbells always read as 0 */ 3108 trace_usb_xhci_doorbell_read(reg, 0); 3109 return 0; 3110 } 3111 3112 static void xhci_doorbell_write(void *ptr, hwaddr reg, 3113 uint64_t val, unsigned size) 3114 { 3115 XHCIState *xhci = ptr; 3116 unsigned int epid, streamid; 3117 3118 trace_usb_xhci_doorbell_write(reg, val); 3119 3120 if (!xhci_running(xhci)) { 3121 DPRINTF("xhci: wrote doorbell while xHC stopped or paused\n"); 3122 return; 3123 } 3124 3125 reg >>= 2; 3126 3127 if (reg == 0) { 3128 if (val == 0) { 3129 xhci_process_commands(xhci); 3130 } else { 3131 DPRINTF("xhci: bad doorbell 0 write: 0x%x\n", 3132 (uint32_t)val); 3133 } 3134 } else { 3135 epid = val & 0xff; 3136 streamid = (val >> 16) & 0xffff; 3137 if (reg > xhci->numslots) { 3138 DPRINTF("xhci: bad doorbell %d\n", (int)reg); 3139 } else if (epid > 31) { 3140 DPRINTF("xhci: bad doorbell %d write: 0x%x\n", 3141 (int)reg, (uint32_t)val); 3142 } else { 3143 xhci_kick_ep(xhci, reg, epid, streamid); 3144 } 3145 } 3146 } 3147 3148 static void xhci_cap_write(void *opaque, hwaddr addr, uint64_t val, 3149 unsigned width) 3150 { 3151 /* nothing */ 3152 } 3153 3154 static const MemoryRegionOps xhci_cap_ops = { 3155 .read = xhci_cap_read, 3156 .write = xhci_cap_write, 3157 .valid.min_access_size = 1, 3158 .valid.max_access_size = 4, 3159 .impl.min_access_size = 4, 3160 .impl.max_access_size = 4, 3161 .endianness = DEVICE_LITTLE_ENDIAN, 3162 }; 3163 3164 static const MemoryRegionOps xhci_oper_ops = { 3165 .read = xhci_oper_read, 3166 .write = xhci_oper_write, 3167 .valid.min_access_size = 4, 3168 .valid.max_access_size = 4, 3169 .endianness = DEVICE_LITTLE_ENDIAN, 3170 }; 3171 3172 static const MemoryRegionOps xhci_port_ops = { 3173 .read = xhci_port_read, 3174 .write = xhci_port_write, 3175 .valid.min_access_size = 4, 3176 .valid.max_access_size = 4, 3177 .endianness = DEVICE_LITTLE_ENDIAN, 3178 }; 3179 3180 static const MemoryRegionOps xhci_runtime_ops = { 3181 .read = xhci_runtime_read, 3182 .write = xhci_runtime_write, 3183 .valid.min_access_size = 4, 3184 .valid.max_access_size = 4, 3185 .endianness = DEVICE_LITTLE_ENDIAN, 3186 }; 3187 3188 static const MemoryRegionOps xhci_doorbell_ops = { 3189 .read = xhci_doorbell_read, 3190 .write = xhci_doorbell_write, 3191 .valid.min_access_size = 4, 3192 .valid.max_access_size = 4, 3193 .endianness = DEVICE_LITTLE_ENDIAN, 3194 }; 3195 3196 static void xhci_attach(USBPort *usbport) 3197 { 3198 XHCIState *xhci = usbport->opaque; 3199 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3200 3201 xhci_port_update(port, 0); 3202 } 3203 3204 static void xhci_detach(USBPort *usbport) 3205 { 3206 XHCIState *xhci = usbport->opaque; 3207 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3208 3209 xhci_detach_slot(xhci, usbport); 3210 xhci_port_update(port, 1); 3211 } 3212 3213 static void xhci_wakeup(USBPort *usbport) 3214 { 3215 XHCIState *xhci = usbport->opaque; 3216 XHCIPort *port = xhci_lookup_port(xhci, usbport); 3217 3218 if (get_field(port->portsc, PORTSC_PLS) != PLS_U3) { 3219 return; 3220 } 3221 set_field(&port->portsc, PLS_RESUME, PORTSC_PLS); 3222 xhci_port_notify(port, PORTSC_PLC); 3223 } 3224 3225 static void xhci_complete(USBPort *port, USBPacket *packet) 3226 { 3227 XHCITransfer *xfer = container_of(packet, XHCITransfer, packet); 3228 3229 if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 3230 xhci_ep_nuke_one_xfer(xfer, 0); 3231 return; 3232 } 3233 xhci_try_complete_packet(xfer); 3234 xhci_kick_epctx(xfer->epctx, xfer->streamid); 3235 if (xfer->complete) { 3236 xhci_ep_free_xfer(xfer); 3237 } 3238 } 3239 3240 static void xhci_child_detach(USBPort *uport, USBDevice *child) 3241 { 3242 USBBus *bus = usb_bus_from_device(child); 3243 XHCIState *xhci = container_of(bus, XHCIState, bus); 3244 3245 xhci_detach_slot(xhci, child->port); 3246 } 3247 3248 static USBPortOps xhci_uport_ops = { 3249 .attach = xhci_attach, 3250 .detach = xhci_detach, 3251 .wakeup = xhci_wakeup, 3252 .complete = xhci_complete, 3253 .child_detach = xhci_child_detach, 3254 }; 3255 3256 static int xhci_find_epid(USBEndpoint *ep) 3257 { 3258 if (ep->nr == 0) { 3259 return 1; 3260 } 3261 if (ep->pid == USB_TOKEN_IN) { 3262 return ep->nr * 2 + 1; 3263 } else { 3264 return ep->nr * 2; 3265 } 3266 } 3267 3268 static USBEndpoint *xhci_epid_to_usbep(XHCIEPContext *epctx) 3269 { 3270 USBPort *uport; 3271 uint32_t token; 3272 3273 if (!epctx) { 3274 return NULL; 3275 } 3276 uport = epctx->xhci->slots[epctx->slotid - 1].uport; 3277 token = (epctx->epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT; 3278 if (!uport) { 3279 return NULL; 3280 } 3281 return usb_ep_get(uport->dev, token, epctx->epid >> 1); 3282 } 3283 3284 static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, 3285 unsigned int stream) 3286 { 3287 XHCIState *xhci = container_of(bus, XHCIState, bus); 3288 int slotid; 3289 3290 DPRINTF("%s\n", __func__); 3291 slotid = ep->dev->addr; 3292 if (slotid == 0 || !xhci->slots[slotid-1].enabled) { 3293 DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr); 3294 return; 3295 } 3296 xhci_kick_ep(xhci, slotid, xhci_find_epid(ep), stream); 3297 } 3298 3299 static USBBusOps xhci_bus_ops = { 3300 .wakeup_endpoint = xhci_wakeup_endpoint, 3301 }; 3302 3303 static void usb_xhci_init(XHCIState *xhci) 3304 { 3305 DeviceState *dev = DEVICE(xhci); 3306 XHCIPort *port; 3307 int i, usbports, speedmask; 3308 3309 xhci->usbsts = USBSTS_HCH; 3310 3311 if (xhci->numports_2 > MAXPORTS_2) { 3312 xhci->numports_2 = MAXPORTS_2; 3313 } 3314 if (xhci->numports_3 > MAXPORTS_3) { 3315 xhci->numports_3 = MAXPORTS_3; 3316 } 3317 usbports = MAX(xhci->numports_2, xhci->numports_3); 3318 xhci->numports = xhci->numports_2 + xhci->numports_3; 3319 3320 usb_bus_new(&xhci->bus, sizeof(xhci->bus), &xhci_bus_ops, dev); 3321 3322 for (i = 0; i < usbports; i++) { 3323 speedmask = 0; 3324 if (i < xhci->numports_2) { 3325 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3326 port = &xhci->ports[i + xhci->numports_3]; 3327 port->portnr = i + 1 + xhci->numports_3; 3328 } else { 3329 port = &xhci->ports[i]; 3330 port->portnr = i + 1; 3331 } 3332 port->uport = &xhci->uports[i]; 3333 port->speedmask = 3334 USB_SPEED_MASK_LOW | 3335 USB_SPEED_MASK_FULL | 3336 USB_SPEED_MASK_HIGH; 3337 snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1); 3338 speedmask |= port->speedmask; 3339 } 3340 if (i < xhci->numports_3) { 3341 if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { 3342 port = &xhci->ports[i]; 3343 port->portnr = i + 1; 3344 } else { 3345 port = &xhci->ports[i + xhci->numports_2]; 3346 port->portnr = i + 1 + xhci->numports_2; 3347 } 3348 port->uport = &xhci->uports[i]; 3349 port->speedmask = USB_SPEED_MASK_SUPER; 3350 snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1); 3351 speedmask |= port->speedmask; 3352 } 3353 usb_register_port(&xhci->bus, &xhci->uports[i], xhci, i, 3354 &xhci_uport_ops, speedmask); 3355 } 3356 } 3357 3358 static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) 3359 { 3360 int i, ret; 3361 Error *err = NULL; 3362 3363 XHCIState *xhci = XHCI(dev); 3364 3365 dev->config[PCI_CLASS_PROG] = 0x30; /* xHCI */ 3366 dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */ 3367 dev->config[PCI_CACHE_LINE_SIZE] = 0x10; 3368 dev->config[0x60] = 0x30; /* release number */ 3369 3370 if (strcmp(object_get_typename(OBJECT(dev)), TYPE_NEC_XHCI) == 0) { 3371 xhci->nec_quirks = true; 3372 } 3373 if (xhci->numintrs > MAXINTRS) { 3374 xhci->numintrs = MAXINTRS; 3375 } 3376 while (xhci->numintrs & (xhci->numintrs - 1)) { /* ! power of 2 */ 3377 xhci->numintrs++; 3378 } 3379 if (xhci->numintrs < 1) { 3380 xhci->numintrs = 1; 3381 } 3382 if (xhci->numslots > MAXSLOTS) { 3383 xhci->numslots = MAXSLOTS; 3384 } 3385 if (xhci->numslots < 1) { 3386 xhci->numslots = 1; 3387 } 3388 if (xhci_get_flag(xhci, XHCI_FLAG_ENABLE_STREAMS)) { 3389 xhci->max_pstreams_mask = 7; /* == 256 primary streams */ 3390 } else { 3391 xhci->max_pstreams_mask = 0; 3392 } 3393 3394 if (xhci->msi != ON_OFF_AUTO_OFF) { 3395 ret = msi_init(dev, 0x70, xhci->numintrs, true, false, &err); 3396 /* Any error other than -ENOTSUP(board's MSI support is broken) 3397 * is a programming error */ 3398 assert(!ret || ret == -ENOTSUP); 3399 if (ret && xhci->msi == ON_OFF_AUTO_ON) { 3400 /* Can't satisfy user's explicit msi=on request, fail */ 3401 error_append_hint(&err, "You have to use msi=auto (default) or " 3402 "msi=off with this machine type.\n"); 3403 error_propagate(errp, err); 3404 return; 3405 } 3406 assert(!err || xhci->msi == ON_OFF_AUTO_AUTO); 3407 /* With msi=auto, we fall back to MSI off silently */ 3408 error_free(err); 3409 } 3410 3411 usb_xhci_init(xhci); 3412 xhci->mfwrap_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_mfwrap_timer, xhci); 3413 3414 memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); 3415 memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, 3416 "capabilities", LEN_CAP); 3417 memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, 3418 "operational", 0x400); 3419 memory_region_init_io(&xhci->mem_runtime, OBJECT(xhci), &xhci_runtime_ops, xhci, 3420 "runtime", LEN_RUNTIME); 3421 memory_region_init_io(&xhci->mem_doorbell, OBJECT(xhci), &xhci_doorbell_ops, xhci, 3422 "doorbell", LEN_DOORBELL); 3423 3424 memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap); 3425 memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper); 3426 memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime); 3427 memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell); 3428 3429 for (i = 0; i < xhci->numports; i++) { 3430 XHCIPort *port = &xhci->ports[i]; 3431 uint32_t offset = OFF_OPER + 0x400 + 0x10 * i; 3432 port->xhci = xhci; 3433 memory_region_init_io(&port->mem, OBJECT(xhci), &xhci_port_ops, port, 3434 port->name, 0x10); 3435 memory_region_add_subregion(&xhci->mem, offset, &port->mem); 3436 } 3437 3438 pci_register_bar(dev, 0, 3439 PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64, 3440 &xhci->mem); 3441 3442 if (pci_bus_is_express(pci_get_bus(dev)) || 3443 xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) { 3444 ret = pcie_endpoint_cap_init(dev, 0xa0); 3445 assert(ret > 0); 3446 } 3447 3448 if (xhci->msix != ON_OFF_AUTO_OFF) { 3449 /* TODO check for errors, and should fail when msix=on */ 3450 msix_init(dev, xhci->numintrs, 3451 &xhci->mem, 0, OFF_MSIX_TABLE, 3452 &xhci->mem, 0, OFF_MSIX_PBA, 3453 0x90, NULL); 3454 } 3455 } 3456 3457 static void usb_xhci_exit(PCIDevice *dev) 3458 { 3459 int i; 3460 XHCIState *xhci = XHCI(dev); 3461 3462 trace_usb_xhci_exit(); 3463 3464 for (i = 0; i < xhci->numslots; i++) { 3465 xhci_disable_slot(xhci, i + 1); 3466 } 3467 3468 if (xhci->mfwrap_timer) { 3469 timer_del(xhci->mfwrap_timer); 3470 timer_free(xhci->mfwrap_timer); 3471 xhci->mfwrap_timer = NULL; 3472 } 3473 3474 memory_region_del_subregion(&xhci->mem, &xhci->mem_cap); 3475 memory_region_del_subregion(&xhci->mem, &xhci->mem_oper); 3476 memory_region_del_subregion(&xhci->mem, &xhci->mem_runtime); 3477 memory_region_del_subregion(&xhci->mem, &xhci->mem_doorbell); 3478 3479 for (i = 0; i < xhci->numports; i++) { 3480 XHCIPort *port = &xhci->ports[i]; 3481 memory_region_del_subregion(&xhci->mem, &port->mem); 3482 } 3483 3484 /* destroy msix memory region */ 3485 if (dev->msix_table && dev->msix_pba 3486 && dev->msix_entry_used) { 3487 msix_uninit(dev, &xhci->mem, &xhci->mem); 3488 } 3489 3490 usb_bus_release(&xhci->bus); 3491 } 3492 3493 static int usb_xhci_post_load(void *opaque, int version_id) 3494 { 3495 XHCIState *xhci = opaque; 3496 PCIDevice *pci_dev = PCI_DEVICE(xhci); 3497 XHCISlot *slot; 3498 XHCIEPContext *epctx; 3499 dma_addr_t dcbaap, pctx; 3500 uint32_t slot_ctx[4]; 3501 uint32_t ep_ctx[5]; 3502 int slotid, epid, state, intr; 3503 3504 dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); 3505 3506 for (slotid = 1; slotid <= xhci->numslots; slotid++) { 3507 slot = &xhci->slots[slotid-1]; 3508 if (!slot->addressed) { 3509 continue; 3510 } 3511 slot->ctx = 3512 xhci_mask64(ldq_le_pci_dma(pci_dev, dcbaap + 8 * slotid)); 3513 xhci_dma_read_u32s(xhci, slot->ctx, slot_ctx, sizeof(slot_ctx)); 3514 slot->uport = xhci_lookup_uport(xhci, slot_ctx); 3515 if (!slot->uport) { 3516 /* should not happen, but may trigger on guest bugs */ 3517 slot->enabled = 0; 3518 slot->addressed = 0; 3519 continue; 3520 } 3521 assert(slot->uport && slot->uport->dev); 3522 3523 for (epid = 1; epid <= 31; epid++) { 3524 pctx = slot->ctx + 32 * epid; 3525 xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx)); 3526 state = ep_ctx[0] & EP_STATE_MASK; 3527 if (state == EP_DISABLED) { 3528 continue; 3529 } 3530 epctx = xhci_alloc_epctx(xhci, slotid, epid); 3531 slot->eps[epid-1] = epctx; 3532 xhci_init_epctx(epctx, pctx, ep_ctx); 3533 epctx->state = state; 3534 if (state == EP_RUNNING) { 3535 /* kick endpoint after vmload is finished */ 3536 timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); 3537 } 3538 } 3539 } 3540 3541 for (intr = 0; intr < xhci->numintrs; intr++) { 3542 if (xhci->intr[intr].msix_used) { 3543 msix_vector_use(pci_dev, intr); 3544 } else { 3545 msix_vector_unuse(pci_dev, intr); 3546 } 3547 } 3548 3549 return 0; 3550 } 3551 3552 static const VMStateDescription vmstate_xhci_ring = { 3553 .name = "xhci-ring", 3554 .version_id = 1, 3555 .fields = (VMStateField[]) { 3556 VMSTATE_UINT64(dequeue, XHCIRing), 3557 VMSTATE_BOOL(ccs, XHCIRing), 3558 VMSTATE_END_OF_LIST() 3559 } 3560 }; 3561 3562 static const VMStateDescription vmstate_xhci_port = { 3563 .name = "xhci-port", 3564 .version_id = 1, 3565 .fields = (VMStateField[]) { 3566 VMSTATE_UINT32(portsc, XHCIPort), 3567 VMSTATE_END_OF_LIST() 3568 } 3569 }; 3570 3571 static const VMStateDescription vmstate_xhci_slot = { 3572 .name = "xhci-slot", 3573 .version_id = 1, 3574 .fields = (VMStateField[]) { 3575 VMSTATE_BOOL(enabled, XHCISlot), 3576 VMSTATE_BOOL(addressed, XHCISlot), 3577 VMSTATE_END_OF_LIST() 3578 } 3579 }; 3580 3581 static const VMStateDescription vmstate_xhci_event = { 3582 .name = "xhci-event", 3583 .version_id = 1, 3584 .fields = (VMStateField[]) { 3585 VMSTATE_UINT32(type, XHCIEvent), 3586 VMSTATE_UINT32(ccode, XHCIEvent), 3587 VMSTATE_UINT64(ptr, XHCIEvent), 3588 VMSTATE_UINT32(length, XHCIEvent), 3589 VMSTATE_UINT32(flags, XHCIEvent), 3590 VMSTATE_UINT8(slotid, XHCIEvent), 3591 VMSTATE_UINT8(epid, XHCIEvent), 3592 VMSTATE_END_OF_LIST() 3593 } 3594 }; 3595 3596 static bool xhci_er_full(void *opaque, int version_id) 3597 { 3598 return false; 3599 } 3600 3601 static const VMStateDescription vmstate_xhci_intr = { 3602 .name = "xhci-intr", 3603 .version_id = 1, 3604 .fields = (VMStateField[]) { 3605 /* registers */ 3606 VMSTATE_UINT32(iman, XHCIInterrupter), 3607 VMSTATE_UINT32(imod, XHCIInterrupter), 3608 VMSTATE_UINT32(erstsz, XHCIInterrupter), 3609 VMSTATE_UINT32(erstba_low, XHCIInterrupter), 3610 VMSTATE_UINT32(erstba_high, XHCIInterrupter), 3611 VMSTATE_UINT32(erdp_low, XHCIInterrupter), 3612 VMSTATE_UINT32(erdp_high, XHCIInterrupter), 3613 3614 /* state */ 3615 VMSTATE_BOOL(msix_used, XHCIInterrupter), 3616 VMSTATE_BOOL(er_pcs, XHCIInterrupter), 3617 VMSTATE_UINT64(er_start, XHCIInterrupter), 3618 VMSTATE_UINT32(er_size, XHCIInterrupter), 3619 VMSTATE_UINT32(er_ep_idx, XHCIInterrupter), 3620 3621 /* event queue (used if ring is full) */ 3622 VMSTATE_BOOL(er_full_unused, XHCIInterrupter), 3623 VMSTATE_UINT32_TEST(ev_buffer_put, XHCIInterrupter, xhci_er_full), 3624 VMSTATE_UINT32_TEST(ev_buffer_get, XHCIInterrupter, xhci_er_full), 3625 VMSTATE_STRUCT_ARRAY_TEST(ev_buffer, XHCIInterrupter, EV_QUEUE, 3626 xhci_er_full, 1, 3627 vmstate_xhci_event, XHCIEvent), 3628 3629 VMSTATE_END_OF_LIST() 3630 } 3631 }; 3632 3633 static const VMStateDescription vmstate_xhci = { 3634 .name = "xhci", 3635 .version_id = 1, 3636 .post_load = usb_xhci_post_load, 3637 .fields = (VMStateField[]) { 3638 VMSTATE_PCI_DEVICE(parent_obj, XHCIState), 3639 VMSTATE_MSIX(parent_obj, XHCIState), 3640 3641 VMSTATE_STRUCT_VARRAY_UINT32(ports, XHCIState, numports, 1, 3642 vmstate_xhci_port, XHCIPort), 3643 VMSTATE_STRUCT_VARRAY_UINT32(slots, XHCIState, numslots, 1, 3644 vmstate_xhci_slot, XHCISlot), 3645 VMSTATE_STRUCT_VARRAY_UINT32(intr, XHCIState, numintrs, 1, 3646 vmstate_xhci_intr, XHCIInterrupter), 3647 3648 /* Operational Registers */ 3649 VMSTATE_UINT32(usbcmd, XHCIState), 3650 VMSTATE_UINT32(usbsts, XHCIState), 3651 VMSTATE_UINT32(dnctrl, XHCIState), 3652 VMSTATE_UINT32(crcr_low, XHCIState), 3653 VMSTATE_UINT32(crcr_high, XHCIState), 3654 VMSTATE_UINT32(dcbaap_low, XHCIState), 3655 VMSTATE_UINT32(dcbaap_high, XHCIState), 3656 VMSTATE_UINT32(config, XHCIState), 3657 3658 /* Runtime Registers & state */ 3659 VMSTATE_INT64(mfindex_start, XHCIState), 3660 VMSTATE_TIMER_PTR(mfwrap_timer, XHCIState), 3661 VMSTATE_STRUCT(cmd_ring, XHCIState, 1, vmstate_xhci_ring, XHCIRing), 3662 3663 VMSTATE_END_OF_LIST() 3664 } 3665 }; 3666 3667 static Property xhci_properties[] = { 3668 DEFINE_PROP_BIT("streams", XHCIState, flags, 3669 XHCI_FLAG_ENABLE_STREAMS, true), 3670 DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4), 3671 DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4), 3672 DEFINE_PROP_END_OF_LIST(), 3673 }; 3674 3675 static void xhci_instance_init(Object *obj) 3676 { 3677 /* QEMU_PCI_CAP_EXPRESS initialization does not depend on QEMU command 3678 * line, therefore, no need to wait to realize like other devices */ 3679 PCI_DEVICE(obj)->cap_present |= QEMU_PCI_CAP_EXPRESS; 3680 } 3681 3682 static void xhci_class_init(ObjectClass *klass, void *data) 3683 { 3684 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 3685 DeviceClass *dc = DEVICE_CLASS(klass); 3686 3687 dc->vmsd = &vmstate_xhci; 3688 dc->props = xhci_properties; 3689 dc->reset = xhci_reset; 3690 set_bit(DEVICE_CATEGORY_USB, dc->categories); 3691 k->realize = usb_xhci_realize; 3692 k->exit = usb_xhci_exit; 3693 k->class_id = PCI_CLASS_SERIAL_USB; 3694 } 3695 3696 static const TypeInfo xhci_info = { 3697 .name = TYPE_XHCI, 3698 .parent = TYPE_PCI_DEVICE, 3699 .instance_size = sizeof(XHCIState), 3700 .class_init = xhci_class_init, 3701 .instance_init = xhci_instance_init, 3702 .abstract = true, 3703 .interfaces = (InterfaceInfo[]) { 3704 { INTERFACE_PCIE_DEVICE }, 3705 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 3706 { } 3707 }, 3708 }; 3709 3710 static void qemu_xhci_class_init(ObjectClass *klass, void *data) 3711 { 3712 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 3713 3714 k->vendor_id = PCI_VENDOR_ID_REDHAT; 3715 k->device_id = PCI_DEVICE_ID_REDHAT_XHCI; 3716 k->revision = 0x01; 3717 } 3718 3719 static void qemu_xhci_instance_init(Object *obj) 3720 { 3721 XHCIState *xhci = XHCI(obj); 3722 3723 xhci->msi = ON_OFF_AUTO_OFF; 3724 xhci->msix = ON_OFF_AUTO_AUTO; 3725 xhci->numintrs = MAXINTRS; 3726 xhci->numslots = MAXSLOTS; 3727 xhci_set_flag(xhci, XHCI_FLAG_SS_FIRST); 3728 } 3729 3730 static const TypeInfo qemu_xhci_info = { 3731 .name = TYPE_QEMU_XHCI, 3732 .parent = TYPE_XHCI, 3733 .class_init = qemu_xhci_class_init, 3734 .instance_init = qemu_xhci_instance_init, 3735 }; 3736 3737 static void xhci_register_types(void) 3738 { 3739 type_register_static(&xhci_info); 3740 type_register_static(&qemu_xhci_info); 3741 } 3742 3743 type_init(xhci_register_types) 3744