pci_xhci.c revision 336161
1/*- 2 * Copyright (c) 2014 Leon Dang <ldang@nahannisys.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26/* 27 XHCI options: 28 -s <n>,xhci,{devices} 29 30 devices: 31 tablet USB tablet mouse 32 */ 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/usr.sbin/bhyve/pci_xhci.c 336161 2018-07-10 04:26:32Z araujo $"); 35 36#include <sys/param.h> 37#include <sys/uio.h> 38#include <sys/types.h> 39#include <sys/queue.h> 40 41#include <stdio.h> 42#include <stdlib.h> 43#include <stdint.h> 44#include <string.h> 45#include <errno.h> 46#include <pthread.h> 47#include <unistd.h> 48 49#include <dev/usb/usbdi.h> 50#include <dev/usb/usb.h> 51#include <dev/usb/usb_freebsd.h> 52#include <xhcireg.h> 53 54#include "bhyverun.h" 55#include "pci_emul.h" 56#include "pci_xhci.h" 57#include "usb_emul.h" 58 59 60static int xhci_debug = 0; 61#define DPRINTF(params) if (xhci_debug) printf params 62#define WPRINTF(params) printf params 63 64 65#define XHCI_NAME "xhci" 66#define XHCI_MAX_DEVS 8 /* 4 USB3 + 4 USB2 devs */ 67 68#define XHCI_MAX_SLOTS 64 /* min allowed by Windows drivers */ 69 70/* 71 * XHCI data structures can be up to 64k, but limit paddr_guest2host mapping 72 * to 4k to avoid going over the guest physical memory barrier. 73 */ 74#define XHCI_PADDR_SZ 4096 /* paddr_guest2host max size */ 75 76#define XHCI_ERST_MAX 0 /* max 2^entries event ring seg tbl */ 77 78#define XHCI_CAPLEN (4*8) /* offset of op register space */ 79#define XHCI_HCCPRAMS2 0x1C /* offset of HCCPARAMS2 register */ 80#define XHCI_PORTREGS_START 0x400 81#define XHCI_DOORBELL_MAX 256 82 83#define XHCI_STREAMS_MAX 1 /* 4-15 in XHCI spec */ 84 85/* caplength and hci-version registers */ 86#define XHCI_SET_CAPLEN(x) ((x) & 0xFF) 87#define XHCI_SET_HCIVERSION(x) (((x) & 0xFFFF) << 16) 88#define XHCI_GET_HCIVERSION(x) (((x) >> 16) & 0xFFFF) 89 90/* hcsparams1 register */ 91#define XHCI_SET_HCSP1_MAXSLOTS(x) ((x) & 0xFF) 92#define XHCI_SET_HCSP1_MAXINTR(x) (((x) & 0x7FF) << 8) 93#define XHCI_SET_HCSP1_MAXPORTS(x) (((x) & 0xFF) << 24) 94 95/* hcsparams2 register */ 96#define XHCI_SET_HCSP2_IST(x) ((x) & 0x0F) 97#define XHCI_SET_HCSP2_ERSTMAX(x) (((x) & 0x0F) << 4) 98#define XHCI_SET_HCSP2_MAXSCRATCH_HI(x) (((x) & 0x1F) << 21) 99#define XHCI_SET_HCSP2_MAXSCRATCH_LO(x) (((x) & 0x1F) << 27) 100 101/* hcsparams3 register */ 102#define XHCI_SET_HCSP3_U1EXITLATENCY(x) ((x) & 0xFF) 103#define XHCI_SET_HCSP3_U2EXITLATENCY(x) (((x) & 0xFFFF) << 16) 104 105/* hccparams1 register */ 106#define XHCI_SET_HCCP1_AC64(x) ((x) & 0x01) 107#define XHCI_SET_HCCP1_BNC(x) (((x) & 0x01) << 1) 108#define XHCI_SET_HCCP1_CSZ(x) (((x) & 0x01) << 2) 109#define XHCI_SET_HCCP1_PPC(x) (((x) & 0x01) << 3) 110#define XHCI_SET_HCCP1_PIND(x) (((x) & 0x01) << 4) 111#define XHCI_SET_HCCP1_LHRC(x) (((x) & 0x01) << 5) 112#define XHCI_SET_HCCP1_LTC(x) (((x) & 0x01) << 6) 113#define XHCI_SET_HCCP1_NSS(x) (((x) & 0x01) << 7) 114#define XHCI_SET_HCCP1_PAE(x) (((x) & 0x01) << 8) 115#define XHCI_SET_HCCP1_SPC(x) (((x) & 0x01) << 9) 116#define XHCI_SET_HCCP1_SEC(x) (((x) & 0x01) << 10) 117#define XHCI_SET_HCCP1_CFC(x) (((x) & 0x01) << 11) 118#define XHCI_SET_HCCP1_MAXPSA(x) (((x) & 0x0F) << 12) 119#define XHCI_SET_HCCP1_XECP(x) (((x) & 0xFFFF) << 16) 120 121/* hccparams2 register */ 122#define XHCI_SET_HCCP2_U3C(x) ((x) & 0x01) 123#define XHCI_SET_HCCP2_CMC(x) (((x) & 0x01) << 1) 124#define XHCI_SET_HCCP2_FSC(x) (((x) & 0x01) << 2) 125#define XHCI_SET_HCCP2_CTC(x) (((x) & 0x01) << 3) 126#define XHCI_SET_HCCP2_LEC(x) (((x) & 0x01) << 4) 127#define XHCI_SET_HCCP2_CIC(x) (((x) & 0x01) << 5) 128 129/* other registers */ 130#define XHCI_SET_DOORBELL(x) ((x) & ~0x03) 131#define XHCI_SET_RTSOFFSET(x) ((x) & ~0x0F) 132 133/* register masks */ 134#define XHCI_PS_PLS_MASK (0xF << 5) /* port link state */ 135#define XHCI_PS_SPEED_MASK (0xF << 10) /* port speed */ 136#define XHCI_PS_PIC_MASK (0x3 << 14) /* port indicator */ 137 138/* port register set */ 139#define XHCI_PORTREGS_BASE 0x400 /* base offset */ 140#define XHCI_PORTREGS_PORT0 0x3F0 141#define XHCI_PORTREGS_SETSZ 0x10 /* size of a set */ 142 143#define MASK_64_HI(x) ((x) & ~0xFFFFFFFFULL) 144#define MASK_64_LO(x) ((x) & 0xFFFFFFFFULL) 145 146#define FIELD_REPLACE(a,b,m,s) (((a) & ~((m) << (s))) | \ 147 (((b) & (m)) << (s))) 148#define FIELD_COPY(a,b,m,s) (((a) & ~((m) << (s))) | \ 149 (((b) & ((m) << (s))))) 150 151struct pci_xhci_trb_ring { 152 uint64_t ringaddr; /* current dequeue guest address */ 153 uint32_t ccs; /* consumer cycle state */ 154}; 155 156/* device endpoint transfer/stream rings */ 157struct pci_xhci_dev_ep { 158 union { 159 struct xhci_trb *_epu_tr; 160 struct xhci_stream_ctx *_epu_sctx; 161 } _ep_trbsctx; 162#define ep_tr _ep_trbsctx._epu_tr 163#define ep_sctx _ep_trbsctx._epu_sctx 164 165 union { 166 struct pci_xhci_trb_ring _epu_trb; 167 struct pci_xhci_trb_ring *_epu_sctx_trbs; 168 } _ep_trb_rings; 169#define ep_ringaddr _ep_trb_rings._epu_trb.ringaddr 170#define ep_ccs _ep_trb_rings._epu_trb.ccs 171#define ep_sctx_trbs _ep_trb_rings._epu_sctx_trbs 172 173 struct usb_data_xfer *ep_xfer; /* transfer chain */ 174}; 175 176/* device context base address array: maps slot->device context */ 177struct xhci_dcbaa { 178 uint64_t dcba[USB_MAX_DEVICES+1]; /* xhci_dev_ctx ptrs */ 179}; 180 181/* port status registers */ 182struct pci_xhci_portregs { 183 uint32_t portsc; /* port status and control */ 184 uint32_t portpmsc; /* port pwr mgmt status & control */ 185 uint32_t portli; /* port link info */ 186 uint32_t porthlpmc; /* port hardware LPM control */ 187} __packed; 188#define XHCI_PS_SPEED_SET(x) (((x) & 0xF) << 10) 189 190/* xHC operational registers */ 191struct pci_xhci_opregs { 192 uint32_t usbcmd; /* usb command */ 193 uint32_t usbsts; /* usb status */ 194 uint32_t pgsz; /* page size */ 195 uint32_t dnctrl; /* device notification control */ 196 uint64_t crcr; /* command ring control */ 197 uint64_t dcbaap; /* device ctx base addr array ptr */ 198 uint32_t config; /* configure */ 199 200 /* guest mapped addresses: */ 201 struct xhci_trb *cr_p; /* crcr dequeue */ 202 struct xhci_dcbaa *dcbaa_p; /* dev ctx array ptr */ 203}; 204 205/* xHC runtime registers */ 206struct pci_xhci_rtsregs { 207 uint32_t mfindex; /* microframe index */ 208 struct { /* interrupter register set */ 209 uint32_t iman; /* interrupter management */ 210 uint32_t imod; /* interrupter moderation */ 211 uint32_t erstsz; /* event ring segment table size */ 212 uint32_t rsvd; 213 uint64_t erstba; /* event ring seg-tbl base addr */ 214 uint64_t erdp; /* event ring dequeue ptr */ 215 } intrreg __packed; 216 217 /* guest mapped addresses */ 218 struct xhci_event_ring_seg *erstba_p; 219 struct xhci_trb *erst_p; /* event ring segment tbl */ 220 int er_deq_seg; /* event ring dequeue segment */ 221 int er_enq_idx; /* event ring enqueue index - xHCI */ 222 int er_enq_seg; /* event ring enqueue segment */ 223 uint32_t er_events_cnt; /* number of events in ER */ 224 uint32_t event_pcs; /* producer cycle state flag */ 225}; 226 227 228struct pci_xhci_softc; 229 230 231/* 232 * USB device emulation container. 233 * This is referenced from usb_hci->hci_sc; 1 pci_xhci_dev_emu for each 234 * emulated device instance. 235 */ 236struct pci_xhci_dev_emu { 237 struct pci_xhci_softc *xsc; 238 239 /* XHCI contexts */ 240 struct xhci_dev_ctx *dev_ctx; 241 struct pci_xhci_dev_ep eps[XHCI_MAX_ENDPOINTS]; 242 int dev_slotstate; 243 244 struct usb_devemu *dev_ue; /* USB emulated dev */ 245 void *dev_sc; /* device's softc */ 246 247 struct usb_hci hci; 248}; 249 250struct pci_xhci_softc { 251 struct pci_devinst *xsc_pi; 252 253 pthread_mutex_t mtx; 254 255 uint32_t caplength; /* caplen & hciversion */ 256 uint32_t hcsparams1; /* structural parameters 1 */ 257 uint32_t hcsparams2; /* structural parameters 2 */ 258 uint32_t hcsparams3; /* structural parameters 3 */ 259 uint32_t hccparams1; /* capability parameters 1 */ 260 uint32_t dboff; /* doorbell offset */ 261 uint32_t rtsoff; /* runtime register space offset */ 262 uint32_t hccparams2; /* capability parameters 2 */ 263 264 uint32_t regsend; /* end of configuration registers */ 265 266 struct pci_xhci_opregs opregs; 267 struct pci_xhci_rtsregs rtsregs; 268 269 struct pci_xhci_portregs *portregs; 270 struct pci_xhci_dev_emu **devices; /* XHCI[port] = device */ 271 struct pci_xhci_dev_emu **slots; /* slots assigned from 1 */ 272 int ndevices; 273 274 int usb2_port_start; 275 int usb3_port_start; 276}; 277 278 279/* portregs and devices arrays are set up to start from idx=1 */ 280#define XHCI_PORTREG_PTR(x,n) &(x)->portregs[(n)] 281#define XHCI_DEVINST_PTR(x,n) (x)->devices[(n)] 282#define XHCI_SLOTDEV_PTR(x,n) (x)->slots[(n)] 283 284#define XHCI_HALTED(sc) ((sc)->opregs.usbsts & XHCI_STS_HCH) 285 286#define XHCI_GADDR(sc,a) paddr_guest2host((sc)->xsc_pi->pi_vmctx, \ 287 (a), \ 288 XHCI_PADDR_SZ - ((a) & (XHCI_PADDR_SZ-1))) 289 290static int xhci_in_use; 291 292/* map USB errors to XHCI */ 293static const int xhci_usb_errors[USB_ERR_MAX] = { 294 [USB_ERR_NORMAL_COMPLETION] = XHCI_TRB_ERROR_SUCCESS, 295 [USB_ERR_PENDING_REQUESTS] = XHCI_TRB_ERROR_RESOURCE, 296 [USB_ERR_NOT_STARTED] = XHCI_TRB_ERROR_ENDP_NOT_ON, 297 [USB_ERR_INVAL] = XHCI_TRB_ERROR_INVALID, 298 [USB_ERR_NOMEM] = XHCI_TRB_ERROR_RESOURCE, 299 [USB_ERR_CANCELLED] = XHCI_TRB_ERROR_STOPPED, 300 [USB_ERR_BAD_ADDRESS] = XHCI_TRB_ERROR_PARAMETER, 301 [USB_ERR_BAD_BUFSIZE] = XHCI_TRB_ERROR_PARAMETER, 302 [USB_ERR_BAD_FLAG] = XHCI_TRB_ERROR_PARAMETER, 303 [USB_ERR_NO_CALLBACK] = XHCI_TRB_ERROR_STALL, 304 [USB_ERR_IN_USE] = XHCI_TRB_ERROR_RESOURCE, 305 [USB_ERR_NO_ADDR] = XHCI_TRB_ERROR_RESOURCE, 306 [USB_ERR_NO_PIPE] = XHCI_TRB_ERROR_RESOURCE, 307 [USB_ERR_ZERO_NFRAMES] = XHCI_TRB_ERROR_UNDEFINED, 308 [USB_ERR_ZERO_MAXP] = XHCI_TRB_ERROR_UNDEFINED, 309 [USB_ERR_SET_ADDR_FAILED] = XHCI_TRB_ERROR_RESOURCE, 310 [USB_ERR_NO_POWER] = XHCI_TRB_ERROR_ENDP_NOT_ON, 311 [USB_ERR_TOO_DEEP] = XHCI_TRB_ERROR_RESOURCE, 312 [USB_ERR_IOERROR] = XHCI_TRB_ERROR_TRB, 313 [USB_ERR_NOT_CONFIGURED] = XHCI_TRB_ERROR_ENDP_NOT_ON, 314 [USB_ERR_TIMEOUT] = XHCI_TRB_ERROR_CMD_ABORTED, 315 [USB_ERR_SHORT_XFER] = XHCI_TRB_ERROR_SHORT_PKT, 316 [USB_ERR_STALLED] = XHCI_TRB_ERROR_STALL, 317 [USB_ERR_INTERRUPTED] = XHCI_TRB_ERROR_CMD_ABORTED, 318 [USB_ERR_DMA_LOAD_FAILED] = XHCI_TRB_ERROR_DATA_BUF, 319 [USB_ERR_BAD_CONTEXT] = XHCI_TRB_ERROR_TRB, 320 [USB_ERR_NO_ROOT_HUB] = XHCI_TRB_ERROR_UNDEFINED, 321 [USB_ERR_NO_INTR_THREAD] = XHCI_TRB_ERROR_UNDEFINED, 322 [USB_ERR_NOT_LOCKED] = XHCI_TRB_ERROR_UNDEFINED, 323}; 324#define USB_TO_XHCI_ERR(e) ((e) < USB_ERR_MAX ? xhci_usb_errors[(e)] : \ 325 XHCI_TRB_ERROR_INVALID) 326 327static int pci_xhci_insert_event(struct pci_xhci_softc *sc, 328 struct xhci_trb *evtrb, int do_intr); 329static void pci_xhci_dump_trb(struct xhci_trb *trb); 330static void pci_xhci_assert_interrupt(struct pci_xhci_softc *sc); 331static void pci_xhci_reset_slot(struct pci_xhci_softc *sc, int slot); 332static void pci_xhci_reset_port(struct pci_xhci_softc *sc, int portn, int warm); 333static void pci_xhci_update_ep_ring(struct pci_xhci_softc *sc, 334 struct pci_xhci_dev_emu *dev, struct pci_xhci_dev_ep *devep, 335 struct xhci_endp_ctx *ep_ctx, uint32_t streamid, 336 uint64_t ringaddr, int ccs); 337 338static void 339pci_xhci_set_evtrb(struct xhci_trb *evtrb, uint64_t port, uint32_t errcode, 340 uint32_t evtype) 341{ 342 evtrb->qwTrb0 = port << 24; 343 evtrb->dwTrb2 = XHCI_TRB_2_ERROR_SET(errcode); 344 evtrb->dwTrb3 = XHCI_TRB_3_TYPE_SET(evtype); 345} 346 347 348/* controller reset */ 349static void 350pci_xhci_reset(struct pci_xhci_softc *sc) 351{ 352 int i; 353 354 sc->rtsregs.er_enq_idx = 0; 355 sc->rtsregs.er_events_cnt = 0; 356 sc->rtsregs.event_pcs = 1; 357 358 for (i = 1; i <= XHCI_MAX_SLOTS; i++) { 359 pci_xhci_reset_slot(sc, i); 360 } 361} 362 363static uint32_t 364pci_xhci_usbcmd_write(struct pci_xhci_softc *sc, uint32_t cmd) 365{ 366 int do_intr = 0; 367 int i; 368 369 if (cmd & XHCI_CMD_RS) { 370 do_intr = (sc->opregs.usbcmd & XHCI_CMD_RS) == 0; 371 372 sc->opregs.usbcmd |= XHCI_CMD_RS; 373 sc->opregs.usbsts &= ~XHCI_STS_HCH; 374 sc->opregs.usbsts |= XHCI_STS_PCD; 375 376 /* Queue port change event on controller run from stop */ 377 if (do_intr) 378 for (i = 1; i <= XHCI_MAX_DEVS; i++) { 379 struct pci_xhci_dev_emu *dev; 380 struct pci_xhci_portregs *port; 381 struct xhci_trb evtrb; 382 383 if ((dev = XHCI_DEVINST_PTR(sc, i)) == NULL) 384 continue; 385 386 port = XHCI_PORTREG_PTR(sc, i); 387 port->portsc |= XHCI_PS_CSC | XHCI_PS_CCS; 388 port->portsc &= ~XHCI_PS_PLS_MASK; 389 390 /* 391 * XHCI 4.19.3 USB2 RxDetect->Polling, 392 * USB3 Polling->U0 393 */ 394 if (dev->dev_ue->ue_usbver == 2) 395 port->portsc |= 396 XHCI_PS_PLS_SET(UPS_PORT_LS_POLL); 397 else 398 port->portsc |= 399 XHCI_PS_PLS_SET(UPS_PORT_LS_U0); 400 401 pci_xhci_set_evtrb(&evtrb, i, 402 XHCI_TRB_ERROR_SUCCESS, 403 XHCI_TRB_EVENT_PORT_STS_CHANGE); 404 405 if (pci_xhci_insert_event(sc, &evtrb, 0) != 406 XHCI_TRB_ERROR_SUCCESS) 407 break; 408 } 409 } else { 410 sc->opregs.usbcmd &= ~XHCI_CMD_RS; 411 sc->opregs.usbsts |= XHCI_STS_HCH; 412 sc->opregs.usbsts &= ~XHCI_STS_PCD; 413 } 414 415 /* start execution of schedule; stop when set to 0 */ 416 cmd |= sc->opregs.usbcmd & XHCI_CMD_RS; 417 418 if (cmd & XHCI_CMD_HCRST) { 419 /* reset controller */ 420 pci_xhci_reset(sc); 421 cmd &= ~XHCI_CMD_HCRST; 422 } 423 424 cmd &= ~(XHCI_CMD_CSS | XHCI_CMD_CRS); 425 426 if (do_intr) 427 pci_xhci_assert_interrupt(sc); 428 429 return (cmd); 430} 431 432static void 433pci_xhci_portregs_write(struct pci_xhci_softc *sc, uint64_t offset, 434 uint64_t value) 435{ 436 struct xhci_trb evtrb; 437 struct pci_xhci_portregs *p; 438 int port; 439 uint32_t oldpls, newpls; 440 441 if (sc->portregs == NULL) 442 return; 443 444 port = (offset - XHCI_PORTREGS_PORT0) / XHCI_PORTREGS_SETSZ; 445 offset = (offset - XHCI_PORTREGS_PORT0) % XHCI_PORTREGS_SETSZ; 446 447 DPRINTF(("pci_xhci: portregs wr offset 0x%lx, port %u: 0x%lx\r\n", 448 offset, port, value)); 449 450 assert(port >= 0); 451 452 if (port > XHCI_MAX_DEVS) { 453 DPRINTF(("pci_xhci: portregs_write port %d > ndevices\r\n", 454 port)); 455 return; 456 } 457 458 if (XHCI_DEVINST_PTR(sc, port) == NULL) { 459 DPRINTF(("pci_xhci: portregs_write to unattached port %d\r\n", 460 port)); 461 } 462 463 p = XHCI_PORTREG_PTR(sc, port); 464 switch (offset) { 465 case 0: 466 /* port reset or warm reset */ 467 if (value & (XHCI_PS_PR | XHCI_PS_WPR)) { 468 pci_xhci_reset_port(sc, port, value & XHCI_PS_WPR); 469 break; 470 } 471 472 if ((p->portsc & XHCI_PS_PP) == 0) { 473 WPRINTF(("pci_xhci: portregs_write to unpowered " 474 "port %d\r\n", port)); 475 break; 476 } 477 478 /* Port status and control register */ 479 oldpls = XHCI_PS_PLS_GET(p->portsc); 480 newpls = XHCI_PS_PLS_GET(value); 481 482 p->portsc &= XHCI_PS_PED | XHCI_PS_PLS_MASK | 483 XHCI_PS_SPEED_MASK | XHCI_PS_PIC_MASK; 484 485 if (XHCI_DEVINST_PTR(sc, port)) 486 p->portsc |= XHCI_PS_CCS; 487 488 p->portsc |= (value & 489 ~(XHCI_PS_OCA | 490 XHCI_PS_PR | 491 XHCI_PS_PED | 492 XHCI_PS_PLS_MASK | /* link state */ 493 XHCI_PS_SPEED_MASK | 494 XHCI_PS_PIC_MASK | /* port indicator */ 495 XHCI_PS_LWS | XHCI_PS_DR | XHCI_PS_WPR)); 496 497 /* clear control bits */ 498 p->portsc &= ~(value & 499 (XHCI_PS_CSC | 500 XHCI_PS_PEC | 501 XHCI_PS_WRC | 502 XHCI_PS_OCC | 503 XHCI_PS_PRC | 504 XHCI_PS_PLC | 505 XHCI_PS_CEC | 506 XHCI_PS_CAS)); 507 508 /* port disable request; for USB3, don't care */ 509 if (value & XHCI_PS_PED) 510 DPRINTF(("Disable port %d request\r\n", port)); 511 512 if (!(value & XHCI_PS_LWS)) 513 break; 514 515 DPRINTF(("Port new PLS: %d\r\n", newpls)); 516 switch (newpls) { 517 case 0: /* U0 */ 518 case 3: /* U3 */ 519 if (oldpls != newpls) { 520 p->portsc &= ~XHCI_PS_PLS_MASK; 521 p->portsc |= XHCI_PS_PLS_SET(newpls) | 522 XHCI_PS_PLC; 523 524 if (oldpls != 0 && newpls == 0) { 525 pci_xhci_set_evtrb(&evtrb, port, 526 XHCI_TRB_ERROR_SUCCESS, 527 XHCI_TRB_EVENT_PORT_STS_CHANGE); 528 529 pci_xhci_insert_event(sc, &evtrb, 1); 530 } 531 } 532 break; 533 534 default: 535 DPRINTF(("Unhandled change port %d PLS %u\r\n", 536 port, newpls)); 537 break; 538 } 539 break; 540 case 4: 541 /* Port power management status and control register */ 542 p->portpmsc = value; 543 break; 544 case 8: 545 /* Port link information register */ 546 DPRINTF(("pci_xhci attempted write to PORTLI, port %d\r\n", 547 port)); 548 break; 549 case 12: 550 /* 551 * Port hardware LPM control register. 552 * For USB3, this register is reserved. 553 */ 554 p->porthlpmc = value; 555 break; 556 } 557} 558 559struct xhci_dev_ctx * 560pci_xhci_get_dev_ctx(struct pci_xhci_softc *sc, uint32_t slot) 561{ 562 uint64_t devctx_addr; 563 struct xhci_dev_ctx *devctx; 564 565 assert(slot > 0 && slot <= sc->ndevices); 566 assert(sc->opregs.dcbaa_p != NULL); 567 568 devctx_addr = sc->opregs.dcbaa_p->dcba[slot]; 569 570 if (devctx_addr == 0) { 571 DPRINTF(("get_dev_ctx devctx_addr == 0\r\n")); 572 return (NULL); 573 } 574 575 DPRINTF(("pci_xhci: get dev ctx, slot %u devctx addr %016lx\r\n", 576 slot, devctx_addr)); 577 devctx = XHCI_GADDR(sc, devctx_addr & ~0x3FUL); 578 579 return (devctx); 580} 581 582struct xhci_trb * 583pci_xhci_trb_next(struct pci_xhci_softc *sc, struct xhci_trb *curtrb, 584 uint64_t *guestaddr) 585{ 586 struct xhci_trb *next; 587 588 assert(curtrb != NULL); 589 590 if (XHCI_TRB_3_TYPE_GET(curtrb->dwTrb3) == XHCI_TRB_TYPE_LINK) { 591 if (guestaddr) 592 *guestaddr = curtrb->qwTrb0 & ~0xFUL; 593 594 next = XHCI_GADDR(sc, curtrb->qwTrb0 & ~0xFUL); 595 } else { 596 if (guestaddr) 597 *guestaddr += sizeof(struct xhci_trb) & ~0xFUL; 598 599 next = curtrb + 1; 600 } 601 602 return (next); 603} 604 605static void 606pci_xhci_assert_interrupt(struct pci_xhci_softc *sc) 607{ 608 609 sc->rtsregs.intrreg.erdp |= XHCI_ERDP_LO_BUSY; 610 sc->rtsregs.intrreg.iman |= XHCI_IMAN_INTR_PEND; 611 sc->opregs.usbsts |= XHCI_STS_EINT; 612 613 /* only trigger interrupt if permitted */ 614 if ((sc->opregs.usbcmd & XHCI_CMD_INTE) && 615 (sc->rtsregs.intrreg.iman & XHCI_IMAN_INTR_ENA)) { 616 if (pci_msi_enabled(sc->xsc_pi)) 617 pci_generate_msi(sc->xsc_pi, 0); 618 else 619 pci_lintr_assert(sc->xsc_pi); 620 } 621} 622 623static void 624pci_xhci_deassert_interrupt(struct pci_xhci_softc *sc) 625{ 626 627 if (!pci_msi_enabled(sc->xsc_pi)) 628 pci_lintr_assert(sc->xsc_pi); 629} 630 631static void 632pci_xhci_init_ep(struct pci_xhci_dev_emu *dev, int epid) 633{ 634 struct xhci_dev_ctx *dev_ctx; 635 struct pci_xhci_dev_ep *devep; 636 struct xhci_endp_ctx *ep_ctx; 637 uint32_t pstreams; 638 int i; 639 640 dev_ctx = dev->dev_ctx; 641 ep_ctx = &dev_ctx->ctx_ep[epid]; 642 devep = &dev->eps[epid]; 643 pstreams = XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0); 644 if (pstreams > 0) { 645 DPRINTF(("init_ep %d with pstreams %d\r\n", epid, pstreams)); 646 assert(devep->ep_sctx_trbs == NULL); 647 648 devep->ep_sctx = XHCI_GADDR(dev->xsc, ep_ctx->qwEpCtx2 & 649 XHCI_EPCTX_2_TR_DQ_PTR_MASK); 650 devep->ep_sctx_trbs = calloc(pstreams, 651 sizeof(struct pci_xhci_trb_ring)); 652 for (i = 0; i < pstreams; i++) { 653 devep->ep_sctx_trbs[i].ringaddr = 654 devep->ep_sctx[i].qwSctx0 & 655 XHCI_SCTX_0_TR_DQ_PTR_MASK; 656 devep->ep_sctx_trbs[i].ccs = 657 XHCI_SCTX_0_DCS_GET(devep->ep_sctx[i].qwSctx0); 658 } 659 } else { 660 DPRINTF(("init_ep %d with no pstreams\r\n", epid)); 661 devep->ep_ringaddr = ep_ctx->qwEpCtx2 & 662 XHCI_EPCTX_2_TR_DQ_PTR_MASK; 663 devep->ep_ccs = XHCI_EPCTX_2_DCS_GET(ep_ctx->qwEpCtx2); 664 devep->ep_tr = XHCI_GADDR(dev->xsc, devep->ep_ringaddr); 665 DPRINTF(("init_ep tr DCS %x\r\n", devep->ep_ccs)); 666 } 667 668 if (devep->ep_xfer == NULL) { 669 devep->ep_xfer = malloc(sizeof(struct usb_data_xfer)); 670 USB_DATA_XFER_INIT(devep->ep_xfer); 671 } 672} 673 674static void 675pci_xhci_disable_ep(struct pci_xhci_dev_emu *dev, int epid) 676{ 677 struct xhci_dev_ctx *dev_ctx; 678 struct pci_xhci_dev_ep *devep; 679 struct xhci_endp_ctx *ep_ctx; 680 681 DPRINTF(("pci_xhci disable_ep %d\r\n", epid)); 682 683 dev_ctx = dev->dev_ctx; 684 ep_ctx = &dev_ctx->ctx_ep[epid]; 685 ep_ctx->dwEpCtx0 = (ep_ctx->dwEpCtx0 & ~0x7) | XHCI_ST_EPCTX_DISABLED; 686 687 devep = &dev->eps[epid]; 688 if (XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0) > 0 && 689 devep->ep_sctx_trbs != NULL) 690 free(devep->ep_sctx_trbs); 691 692 if (devep->ep_xfer != NULL) { 693 free(devep->ep_xfer); 694 devep->ep_xfer = NULL; 695 } 696 697 memset(devep, 0, sizeof(struct pci_xhci_dev_ep)); 698} 699 700 701/* reset device at slot and data structures related to it */ 702static void 703pci_xhci_reset_slot(struct pci_xhci_softc *sc, int slot) 704{ 705 struct pci_xhci_dev_emu *dev; 706 707 dev = XHCI_SLOTDEV_PTR(sc, slot); 708 709 if (!dev) { 710 DPRINTF(("xhci reset unassigned slot (%d)?\r\n", slot)); 711 } else { 712 dev->dev_slotstate = XHCI_ST_DISABLED; 713 } 714 715 /* TODO: reset ring buffer pointers */ 716} 717 718static int 719pci_xhci_insert_event(struct pci_xhci_softc *sc, struct xhci_trb *evtrb, 720 int do_intr) 721{ 722 struct pci_xhci_rtsregs *rts; 723 uint64_t erdp; 724 int erdp_idx; 725 int err; 726 struct xhci_trb *evtrbptr; 727 728 err = XHCI_TRB_ERROR_SUCCESS; 729 730 rts = &sc->rtsregs; 731 732 erdp = rts->intrreg.erdp & ~0xF; 733 erdp_idx = (erdp - rts->erstba_p[rts->er_deq_seg].qwEvrsTablePtr) / 734 sizeof(struct xhci_trb); 735 736 DPRINTF(("pci_xhci: insert event 0[%lx] 2[%x] 3[%x]\r\n" 737 "\terdp idx %d/seg %d, enq idx %d/seg %d, pcs %u\r\n" 738 "\t(erdp=0x%lx, erst=0x%lx, tblsz=%u, do_intr %d)\r\n", 739 evtrb->qwTrb0, evtrb->dwTrb2, evtrb->dwTrb3, 740 erdp_idx, rts->er_deq_seg, rts->er_enq_idx, 741 rts->er_enq_seg, 742 rts->event_pcs, erdp, rts->erstba_p->qwEvrsTablePtr, 743 rts->erstba_p->dwEvrsTableSize, do_intr)); 744 745 evtrbptr = &rts->erst_p[rts->er_enq_idx]; 746 747 /* TODO: multi-segment table */ 748 if (rts->er_events_cnt >= rts->erstba_p->dwEvrsTableSize) { 749 DPRINTF(("pci_xhci[%d] cannot insert event; ring full\r\n", 750 __LINE__)); 751 err = XHCI_TRB_ERROR_EV_RING_FULL; 752 goto done; 753 } 754 755 if (rts->er_events_cnt == rts->erstba_p->dwEvrsTableSize - 1) { 756 struct xhci_trb errev; 757 758 if ((evtrbptr->dwTrb3 & 0x1) == (rts->event_pcs & 0x1)) { 759 760 DPRINTF(("pci_xhci[%d] insert evt err: ring full\r\n", 761 __LINE__)); 762 763 errev.qwTrb0 = 0; 764 errev.dwTrb2 = XHCI_TRB_2_ERROR_SET( 765 XHCI_TRB_ERROR_EV_RING_FULL); 766 errev.dwTrb3 = XHCI_TRB_3_TYPE_SET( 767 XHCI_TRB_EVENT_HOST_CTRL) | 768 rts->event_pcs; 769 rts->er_events_cnt++; 770 memcpy(&rts->erst_p[rts->er_enq_idx], &errev, 771 sizeof(struct xhci_trb)); 772 rts->er_enq_idx = (rts->er_enq_idx + 1) % 773 rts->erstba_p->dwEvrsTableSize; 774 err = XHCI_TRB_ERROR_EV_RING_FULL; 775 do_intr = 1; 776 777 goto done; 778 } 779 } else { 780 rts->er_events_cnt++; 781 } 782 783 evtrb->dwTrb3 &= ~XHCI_TRB_3_CYCLE_BIT; 784 evtrb->dwTrb3 |= rts->event_pcs; 785 786 memcpy(&rts->erst_p[rts->er_enq_idx], evtrb, sizeof(struct xhci_trb)); 787 rts->er_enq_idx = (rts->er_enq_idx + 1) % 788 rts->erstba_p->dwEvrsTableSize; 789 790 if (rts->er_enq_idx == 0) 791 rts->event_pcs ^= 1; 792 793done: 794 if (do_intr) 795 pci_xhci_assert_interrupt(sc); 796 797 return (err); 798} 799 800static uint32_t 801pci_xhci_cmd_enable_slot(struct pci_xhci_softc *sc, uint32_t *slot) 802{ 803 struct pci_xhci_dev_emu *dev; 804 uint32_t cmderr; 805 int i; 806 807 cmderr = XHCI_TRB_ERROR_NO_SLOTS; 808 if (sc->portregs != NULL) 809 for (i = 1; i <= XHCI_MAX_SLOTS; i++) { 810 dev = XHCI_SLOTDEV_PTR(sc, i); 811 if (dev && dev->dev_slotstate == XHCI_ST_DISABLED) { 812 *slot = i; 813 dev->dev_slotstate = XHCI_ST_ENABLED; 814 cmderr = XHCI_TRB_ERROR_SUCCESS; 815 dev->hci.hci_address = i; 816 break; 817 } 818 } 819 820 DPRINTF(("pci_xhci enable slot (error=%d) slot %u\r\n", 821 cmderr != XHCI_TRB_ERROR_SUCCESS, *slot)); 822 823 return (cmderr); 824} 825 826static uint32_t 827pci_xhci_cmd_disable_slot(struct pci_xhci_softc *sc, uint32_t slot) 828{ 829 struct pci_xhci_dev_emu *dev; 830 uint32_t cmderr; 831 832 DPRINTF(("pci_xhci disable slot %u\r\n", slot)); 833 834 cmderr = XHCI_TRB_ERROR_NO_SLOTS; 835 if (sc->portregs == NULL) 836 goto done; 837 838 if (slot > sc->ndevices) { 839 cmderr = XHCI_TRB_ERROR_SLOT_NOT_ON; 840 goto done; 841 } 842 843 dev = XHCI_SLOTDEV_PTR(sc, slot); 844 if (dev) { 845 if (dev->dev_slotstate == XHCI_ST_DISABLED) { 846 cmderr = XHCI_TRB_ERROR_SLOT_NOT_ON; 847 } else { 848 dev->dev_slotstate = XHCI_ST_DISABLED; 849 cmderr = XHCI_TRB_ERROR_SUCCESS; 850 /* TODO: reset events and endpoints */ 851 } 852 } 853 854done: 855 return (cmderr); 856} 857 858static uint32_t 859pci_xhci_cmd_reset_device(struct pci_xhci_softc *sc, uint32_t slot) 860{ 861 struct pci_xhci_dev_emu *dev; 862 struct xhci_dev_ctx *dev_ctx; 863 struct xhci_endp_ctx *ep_ctx; 864 uint32_t cmderr; 865 int i; 866 867 cmderr = XHCI_TRB_ERROR_NO_SLOTS; 868 if (sc->portregs == NULL) 869 goto done; 870 871 DPRINTF(("pci_xhci reset device slot %u\r\n", slot)); 872 873 dev = XHCI_SLOTDEV_PTR(sc, slot); 874 if (!dev || dev->dev_slotstate == XHCI_ST_DISABLED) 875 cmderr = XHCI_TRB_ERROR_SLOT_NOT_ON; 876 else { 877 dev->dev_slotstate = XHCI_ST_DEFAULT; 878 879 dev->hci.hci_address = 0; 880 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 881 882 /* slot state */ 883 dev_ctx->ctx_slot.dwSctx3 = FIELD_REPLACE( 884 dev_ctx->ctx_slot.dwSctx3, XHCI_ST_SLCTX_DEFAULT, 885 0x1F, 27); 886 887 /* number of contexts */ 888 dev_ctx->ctx_slot.dwSctx0 = FIELD_REPLACE( 889 dev_ctx->ctx_slot.dwSctx0, 1, 0x1F, 27); 890 891 /* reset all eps other than ep-0 */ 892 for (i = 2; i <= 31; i++) { 893 ep_ctx = &dev_ctx->ctx_ep[i]; 894 ep_ctx->dwEpCtx0 = FIELD_REPLACE( ep_ctx->dwEpCtx0, 895 XHCI_ST_EPCTX_DISABLED, 0x7, 0); 896 } 897 898 cmderr = XHCI_TRB_ERROR_SUCCESS; 899 } 900 901 pci_xhci_reset_slot(sc, slot); 902 903done: 904 return (cmderr); 905} 906 907static uint32_t 908pci_xhci_cmd_address_device(struct pci_xhci_softc *sc, uint32_t slot, 909 struct xhci_trb *trb) 910{ 911 struct pci_xhci_dev_emu *dev; 912 struct xhci_input_dev_ctx *input_ctx; 913 struct xhci_slot_ctx *islot_ctx; 914 struct xhci_dev_ctx *dev_ctx; 915 struct xhci_endp_ctx *ep0_ctx; 916 uint32_t cmderr; 917 918 input_ctx = XHCI_GADDR(sc, trb->qwTrb0 & ~0xFUL); 919 islot_ctx = &input_ctx->ctx_slot; 920 ep0_ctx = &input_ctx->ctx_ep[1]; 921 922 cmderr = XHCI_TRB_ERROR_SUCCESS; 923 924 DPRINTF(("pci_xhci: address device, input ctl: D 0x%08x A 0x%08x,\r\n" 925 " slot %08x %08x %08x %08x\r\n" 926 " ep0 %08x %08x %016lx %08x\r\n", 927 input_ctx->ctx_input.dwInCtx0, input_ctx->ctx_input.dwInCtx1, 928 islot_ctx->dwSctx0, islot_ctx->dwSctx1, 929 islot_ctx->dwSctx2, islot_ctx->dwSctx3, 930 ep0_ctx->dwEpCtx0, ep0_ctx->dwEpCtx1, ep0_ctx->qwEpCtx2, 931 ep0_ctx->dwEpCtx4)); 932 933 /* when setting address: drop-ctx=0, add-ctx=slot+ep0 */ 934 if ((input_ctx->ctx_input.dwInCtx0 != 0) || 935 (input_ctx->ctx_input.dwInCtx1 & 0x03) != 0x03) { 936 DPRINTF(("pci_xhci: address device, input ctl invalid\r\n")); 937 cmderr = XHCI_TRB_ERROR_TRB; 938 goto done; 939 } 940 941 /* assign address to slot */ 942 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 943 944 DPRINTF(("pci_xhci: address device, dev ctx\r\n" 945 " slot %08x %08x %08x %08x\r\n", 946 dev_ctx->ctx_slot.dwSctx0, dev_ctx->ctx_slot.dwSctx1, 947 dev_ctx->ctx_slot.dwSctx2, dev_ctx->ctx_slot.dwSctx3)); 948 949 dev = XHCI_SLOTDEV_PTR(sc, slot); 950 assert(dev != NULL); 951 952 dev->hci.hci_address = slot; 953 dev->dev_ctx = dev_ctx; 954 955 if (dev->dev_ue->ue_reset == NULL || 956 dev->dev_ue->ue_reset(dev->dev_sc) < 0) { 957 cmderr = XHCI_TRB_ERROR_ENDP_NOT_ON; 958 goto done; 959 } 960 961 memcpy(&dev_ctx->ctx_slot, islot_ctx, sizeof(struct xhci_slot_ctx)); 962 963 dev_ctx->ctx_slot.dwSctx3 = 964 XHCI_SCTX_3_SLOT_STATE_SET(XHCI_ST_SLCTX_ADDRESSED) | 965 XHCI_SCTX_3_DEV_ADDR_SET(slot); 966 967 memcpy(&dev_ctx->ctx_ep[1], ep0_ctx, sizeof(struct xhci_endp_ctx)); 968 ep0_ctx = &dev_ctx->ctx_ep[1]; 969 ep0_ctx->dwEpCtx0 = (ep0_ctx->dwEpCtx0 & ~0x7) | 970 XHCI_EPCTX_0_EPSTATE_SET(XHCI_ST_EPCTX_RUNNING); 971 972 pci_xhci_init_ep(dev, 1); 973 974 dev->dev_slotstate = XHCI_ST_ADDRESSED; 975 976 DPRINTF(("pci_xhci: address device, output ctx\r\n" 977 " slot %08x %08x %08x %08x\r\n" 978 " ep0 %08x %08x %016lx %08x\r\n", 979 dev_ctx->ctx_slot.dwSctx0, dev_ctx->ctx_slot.dwSctx1, 980 dev_ctx->ctx_slot.dwSctx2, dev_ctx->ctx_slot.dwSctx3, 981 ep0_ctx->dwEpCtx0, ep0_ctx->dwEpCtx1, ep0_ctx->qwEpCtx2, 982 ep0_ctx->dwEpCtx4)); 983 984done: 985 return (cmderr); 986} 987 988static uint32_t 989pci_xhci_cmd_config_ep(struct pci_xhci_softc *sc, uint32_t slot, 990 struct xhci_trb *trb) 991{ 992 struct xhci_input_dev_ctx *input_ctx; 993 struct pci_xhci_dev_emu *dev; 994 struct xhci_dev_ctx *dev_ctx; 995 struct xhci_endp_ctx *ep_ctx, *iep_ctx; 996 uint32_t cmderr; 997 int i; 998 999 cmderr = XHCI_TRB_ERROR_SUCCESS; 1000 1001 DPRINTF(("pci_xhci config_ep slot %u\r\n", slot)); 1002 1003 dev = XHCI_SLOTDEV_PTR(sc, slot); 1004 assert(dev != NULL); 1005 1006 if ((trb->dwTrb3 & XHCI_TRB_3_DCEP_BIT) != 0) { 1007 DPRINTF(("pci_xhci config_ep - deconfigure ep slot %u\r\n", 1008 slot)); 1009 if (dev->dev_ue->ue_stop != NULL) 1010 dev->dev_ue->ue_stop(dev->dev_sc); 1011 1012 dev->dev_slotstate = XHCI_ST_ADDRESSED; 1013 1014 dev->hci.hci_address = 0; 1015 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 1016 1017 /* number of contexts */ 1018 dev_ctx->ctx_slot.dwSctx0 = FIELD_REPLACE( 1019 dev_ctx->ctx_slot.dwSctx0, 1, 0x1F, 27); 1020 1021 /* slot state */ 1022 dev_ctx->ctx_slot.dwSctx3 = FIELD_REPLACE( 1023 dev_ctx->ctx_slot.dwSctx3, XHCI_ST_SLCTX_ADDRESSED, 1024 0x1F, 27); 1025 1026 /* disable endpoints */ 1027 for (i = 2; i < 32; i++) 1028 pci_xhci_disable_ep(dev, i); 1029 1030 cmderr = XHCI_TRB_ERROR_SUCCESS; 1031 1032 goto done; 1033 } 1034 1035 if (dev->dev_slotstate < XHCI_ST_ADDRESSED) { 1036 DPRINTF(("pci_xhci: config_ep slotstate x%x != addressed\r\n", 1037 dev->dev_slotstate)); 1038 cmderr = XHCI_TRB_ERROR_SLOT_NOT_ON; 1039 goto done; 1040 } 1041 1042 /* In addressed/configured state; 1043 * for each drop endpoint ctx flag: 1044 * ep->state = DISABLED 1045 * for each add endpoint ctx flag: 1046 * cp(ep-in, ep-out) 1047 * ep->state = RUNNING 1048 * for each drop+add endpoint flag: 1049 * reset ep resources 1050 * cp(ep-in, ep-out) 1051 * ep->state = RUNNING 1052 * if input->DisabledCtx[2-31] < 30: (at least 1 ep not disabled) 1053 * slot->state = configured 1054 */ 1055 1056 input_ctx = XHCI_GADDR(sc, trb->qwTrb0 & ~0xFUL); 1057 dev_ctx = dev->dev_ctx; 1058 DPRINTF(("pci_xhci: config_ep inputctx: D:x%08x A:x%08x 7:x%08x\r\n", 1059 input_ctx->ctx_input.dwInCtx0, input_ctx->ctx_input.dwInCtx1, 1060 input_ctx->ctx_input.dwInCtx7)); 1061 1062 for (i = 2; i <= 31; i++) { 1063 ep_ctx = &dev_ctx->ctx_ep[i]; 1064 1065 if (input_ctx->ctx_input.dwInCtx0 & 1066 XHCI_INCTX_0_DROP_MASK(i)) { 1067 DPRINTF((" config ep - dropping ep %d\r\n", i)); 1068 pci_xhci_disable_ep(dev, i); 1069 } 1070 1071 if (input_ctx->ctx_input.dwInCtx1 & 1072 XHCI_INCTX_1_ADD_MASK(i)) { 1073 iep_ctx = &input_ctx->ctx_ep[i]; 1074 1075 DPRINTF((" enable ep[%d] %08x %08x %016lx %08x\r\n", 1076 i, iep_ctx->dwEpCtx0, iep_ctx->dwEpCtx1, 1077 iep_ctx->qwEpCtx2, iep_ctx->dwEpCtx4)); 1078 1079 memcpy(ep_ctx, iep_ctx, sizeof(struct xhci_endp_ctx)); 1080 1081 pci_xhci_init_ep(dev, i); 1082 1083 /* ep state */ 1084 ep_ctx->dwEpCtx0 = FIELD_REPLACE( 1085 ep_ctx->dwEpCtx0, XHCI_ST_EPCTX_RUNNING, 0x7, 0); 1086 } 1087 } 1088 1089 /* slot state to configured */ 1090 dev_ctx->ctx_slot.dwSctx3 = FIELD_REPLACE( 1091 dev_ctx->ctx_slot.dwSctx3, XHCI_ST_SLCTX_CONFIGURED, 0x1F, 27); 1092 dev_ctx->ctx_slot.dwSctx0 = FIELD_COPY( 1093 dev_ctx->ctx_slot.dwSctx0, input_ctx->ctx_slot.dwSctx0, 0x1F, 27); 1094 dev->dev_slotstate = XHCI_ST_CONFIGURED; 1095 1096 DPRINTF(("EP configured; slot %u [0]=0x%08x [1]=0x%08x [2]=0x%08x " 1097 "[3]=0x%08x\r\n", 1098 slot, dev_ctx->ctx_slot.dwSctx0, dev_ctx->ctx_slot.dwSctx1, 1099 dev_ctx->ctx_slot.dwSctx2, dev_ctx->ctx_slot.dwSctx3)); 1100 1101done: 1102 return (cmderr); 1103} 1104 1105static uint32_t 1106pci_xhci_cmd_reset_ep(struct pci_xhci_softc *sc, uint32_t slot, 1107 struct xhci_trb *trb) 1108{ 1109 struct pci_xhci_dev_emu *dev; 1110 struct pci_xhci_dev_ep *devep; 1111 struct xhci_dev_ctx *dev_ctx; 1112 struct xhci_endp_ctx *ep_ctx; 1113 uint32_t cmderr, epid; 1114 uint32_t type; 1115 1116 epid = XHCI_TRB_3_EP_GET(trb->dwTrb3); 1117 1118 DPRINTF(("pci_xhci: reset ep %u: slot %u\r\n", epid, slot)); 1119 1120 cmderr = XHCI_TRB_ERROR_SUCCESS; 1121 1122 type = XHCI_TRB_3_TYPE_GET(trb->dwTrb3); 1123 1124 dev = XHCI_SLOTDEV_PTR(sc, slot); 1125 assert(dev != NULL); 1126 1127 if (type == XHCI_TRB_TYPE_STOP_EP && 1128 (trb->dwTrb3 & XHCI_TRB_3_SUSP_EP_BIT) != 0) { 1129 /* XXX suspend endpoint for 10ms */ 1130 } 1131 1132 if (epid < 1 || epid > 31) { 1133 DPRINTF(("pci_xhci: reset ep: invalid epid %u\r\n", epid)); 1134 cmderr = XHCI_TRB_ERROR_TRB; 1135 goto done; 1136 } 1137 1138 devep = &dev->eps[epid]; 1139 if (devep->ep_xfer != NULL) 1140 USB_DATA_XFER_RESET(devep->ep_xfer); 1141 1142 dev_ctx = dev->dev_ctx; 1143 assert(dev_ctx != NULL); 1144 1145 ep_ctx = &dev_ctx->ctx_ep[epid]; 1146 1147 ep_ctx->dwEpCtx0 = (ep_ctx->dwEpCtx0 & ~0x7) | XHCI_ST_EPCTX_STOPPED; 1148 1149 if (XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0) == 0) 1150 ep_ctx->qwEpCtx2 = devep->ep_ringaddr | devep->ep_ccs; 1151 1152 DPRINTF(("pci_xhci: reset ep[%u] %08x %08x %016lx %08x\r\n", 1153 epid, ep_ctx->dwEpCtx0, ep_ctx->dwEpCtx1, ep_ctx->qwEpCtx2, 1154 ep_ctx->dwEpCtx4)); 1155 1156 if (type == XHCI_TRB_TYPE_RESET_EP && 1157 (dev->dev_ue->ue_reset == NULL || 1158 dev->dev_ue->ue_reset(dev->dev_sc) < 0)) { 1159 cmderr = XHCI_TRB_ERROR_ENDP_NOT_ON; 1160 goto done; 1161 } 1162 1163done: 1164 return (cmderr); 1165} 1166 1167 1168static uint32_t 1169pci_xhci_find_stream(struct pci_xhci_softc *sc, struct xhci_endp_ctx *ep, 1170 uint32_t streamid, struct xhci_stream_ctx **osctx) 1171{ 1172 struct xhci_stream_ctx *sctx; 1173 uint32_t maxpstreams; 1174 1175 maxpstreams = XHCI_EPCTX_0_MAXP_STREAMS_GET(ep->dwEpCtx0); 1176 if (maxpstreams == 0) 1177 return (XHCI_TRB_ERROR_TRB); 1178 1179 if (maxpstreams > XHCI_STREAMS_MAX) 1180 return (XHCI_TRB_ERROR_INVALID_SID); 1181 1182 if (XHCI_EPCTX_0_LSA_GET(ep->dwEpCtx0) == 0) { 1183 DPRINTF(("pci_xhci: find_stream; LSA bit not set\r\n")); 1184 return (XHCI_TRB_ERROR_INVALID_SID); 1185 } 1186 1187 /* only support primary stream */ 1188 if (streamid > maxpstreams) 1189 return (XHCI_TRB_ERROR_STREAM_TYPE); 1190 1191 sctx = XHCI_GADDR(sc, ep->qwEpCtx2 & ~0xFUL) + streamid; 1192 if (!XHCI_SCTX_0_SCT_GET(sctx->qwSctx0)) 1193 return (XHCI_TRB_ERROR_STREAM_TYPE); 1194 1195 *osctx = sctx; 1196 1197 return (XHCI_TRB_ERROR_SUCCESS); 1198} 1199 1200 1201static uint32_t 1202pci_xhci_cmd_set_tr(struct pci_xhci_softc *sc, uint32_t slot, 1203 struct xhci_trb *trb) 1204{ 1205 struct pci_xhci_dev_emu *dev; 1206 struct pci_xhci_dev_ep *devep; 1207 struct xhci_dev_ctx *dev_ctx; 1208 struct xhci_endp_ctx *ep_ctx; 1209 uint32_t cmderr, epid; 1210 uint32_t streamid; 1211 1212 cmderr = XHCI_TRB_ERROR_SUCCESS; 1213 1214 dev = XHCI_SLOTDEV_PTR(sc, slot); 1215 assert(dev != NULL); 1216 1217 DPRINTF(("pci_xhci set_tr: new-tr x%016lx, SCT %u DCS %u\r\n" 1218 " stream-id %u, slot %u, epid %u, C %u\r\n", 1219 (trb->qwTrb0 & ~0xF), (uint32_t)((trb->qwTrb0 >> 1) & 0x7), 1220 (uint32_t)(trb->qwTrb0 & 0x1), (trb->dwTrb2 >> 16) & 0xFFFF, 1221 XHCI_TRB_3_SLOT_GET(trb->dwTrb3), 1222 XHCI_TRB_3_EP_GET(trb->dwTrb3), trb->dwTrb3 & 0x1)); 1223 1224 epid = XHCI_TRB_3_EP_GET(trb->dwTrb3); 1225 if (epid < 1 || epid > 31) { 1226 DPRINTF(("pci_xhci: set_tr_deq: invalid epid %u\r\n", epid)); 1227 cmderr = XHCI_TRB_ERROR_TRB; 1228 goto done; 1229 } 1230 1231 dev_ctx = dev->dev_ctx; 1232 assert(dev_ctx != NULL); 1233 1234 ep_ctx = &dev_ctx->ctx_ep[epid]; 1235 devep = &dev->eps[epid]; 1236 1237 switch (XHCI_EPCTX_0_EPSTATE_GET(ep_ctx->dwEpCtx0)) { 1238 case XHCI_ST_EPCTX_STOPPED: 1239 case XHCI_ST_EPCTX_ERROR: 1240 break; 1241 default: 1242 DPRINTF(("pci_xhci cmd set_tr invalid state %x\r\n", 1243 XHCI_EPCTX_0_EPSTATE_GET(ep_ctx->dwEpCtx0))); 1244 cmderr = XHCI_TRB_ERROR_CONTEXT_STATE; 1245 goto done; 1246 } 1247 1248 streamid = XHCI_TRB_2_STREAM_GET(trb->dwTrb2); 1249 if (XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0) > 0) { 1250 struct xhci_stream_ctx *sctx; 1251 1252 sctx = NULL; 1253 cmderr = pci_xhci_find_stream(sc, ep_ctx, streamid, &sctx); 1254 if (sctx != NULL) { 1255 assert(devep->ep_sctx != NULL); 1256 1257 devep->ep_sctx[streamid].qwSctx0 = trb->qwTrb0; 1258 devep->ep_sctx_trbs[streamid].ringaddr = 1259 trb->qwTrb0 & ~0xF; 1260 devep->ep_sctx_trbs[streamid].ccs = 1261 XHCI_EPCTX_2_DCS_GET(trb->qwTrb0); 1262 } 1263 } else { 1264 if (streamid != 0) { 1265 DPRINTF(("pci_xhci cmd set_tr streamid %x != 0\r\n", 1266 streamid)); 1267 } 1268 ep_ctx->qwEpCtx2 = trb->qwTrb0 & ~0xFUL; 1269 devep->ep_ringaddr = ep_ctx->qwEpCtx2 & ~0xFUL; 1270 devep->ep_ccs = trb->qwTrb0 & 0x1; 1271 devep->ep_tr = XHCI_GADDR(sc, devep->ep_ringaddr); 1272 1273 DPRINTF(("pci_xhci set_tr first TRB:\r\n")); 1274 pci_xhci_dump_trb(devep->ep_tr); 1275 } 1276 ep_ctx->dwEpCtx0 = (ep_ctx->dwEpCtx0 & ~0x7) | XHCI_ST_EPCTX_STOPPED; 1277 1278done: 1279 return (cmderr); 1280} 1281 1282static uint32_t 1283pci_xhci_cmd_eval_ctx(struct pci_xhci_softc *sc, uint32_t slot, 1284 struct xhci_trb *trb) 1285{ 1286 struct xhci_input_dev_ctx *input_ctx; 1287 struct xhci_slot_ctx *islot_ctx; 1288 struct xhci_dev_ctx *dev_ctx; 1289 struct xhci_endp_ctx *ep0_ctx; 1290 uint32_t cmderr; 1291 1292 input_ctx = XHCI_GADDR(sc, trb->qwTrb0 & ~0xFUL); 1293 islot_ctx = &input_ctx->ctx_slot; 1294 ep0_ctx = &input_ctx->ctx_ep[1]; 1295 1296 cmderr = XHCI_TRB_ERROR_SUCCESS; 1297 DPRINTF(("pci_xhci: eval ctx, input ctl: D 0x%08x A 0x%08x,\r\n" 1298 " slot %08x %08x %08x %08x\r\n" 1299 " ep0 %08x %08x %016lx %08x\r\n", 1300 input_ctx->ctx_input.dwInCtx0, input_ctx->ctx_input.dwInCtx1, 1301 islot_ctx->dwSctx0, islot_ctx->dwSctx1, 1302 islot_ctx->dwSctx2, islot_ctx->dwSctx3, 1303 ep0_ctx->dwEpCtx0, ep0_ctx->dwEpCtx1, ep0_ctx->qwEpCtx2, 1304 ep0_ctx->dwEpCtx4)); 1305 1306 /* this command expects drop-ctx=0 & add-ctx=slot+ep0 */ 1307 if ((input_ctx->ctx_input.dwInCtx0 != 0) || 1308 (input_ctx->ctx_input.dwInCtx1 & 0x03) == 0) { 1309 DPRINTF(("pci_xhci: eval ctx, input ctl invalid\r\n")); 1310 cmderr = XHCI_TRB_ERROR_TRB; 1311 goto done; 1312 } 1313 1314 /* assign address to slot; in this emulation, slot_id = address */ 1315 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 1316 1317 DPRINTF(("pci_xhci: eval ctx, dev ctx\r\n" 1318 " slot %08x %08x %08x %08x\r\n", 1319 dev_ctx->ctx_slot.dwSctx0, dev_ctx->ctx_slot.dwSctx1, 1320 dev_ctx->ctx_slot.dwSctx2, dev_ctx->ctx_slot.dwSctx3)); 1321 1322 if (input_ctx->ctx_input.dwInCtx1 & 0x01) { /* slot ctx */ 1323 /* set max exit latency */ 1324 dev_ctx->ctx_slot.dwSctx1 = FIELD_COPY( 1325 dev_ctx->ctx_slot.dwSctx1, input_ctx->ctx_slot.dwSctx1, 1326 0xFFFF, 0); 1327 1328 /* set interrupter target */ 1329 dev_ctx->ctx_slot.dwSctx2 = FIELD_COPY( 1330 dev_ctx->ctx_slot.dwSctx2, input_ctx->ctx_slot.dwSctx2, 1331 0x3FF, 22); 1332 } 1333 if (input_ctx->ctx_input.dwInCtx1 & 0x02) { /* control ctx */ 1334 /* set max packet size */ 1335 dev_ctx->ctx_ep[1].dwEpCtx1 = FIELD_COPY( 1336 dev_ctx->ctx_ep[1].dwEpCtx1, ep0_ctx->dwEpCtx1, 1337 0xFFFF, 16); 1338 1339 ep0_ctx = &dev_ctx->ctx_ep[1]; 1340 } 1341 1342 DPRINTF(("pci_xhci: eval ctx, output ctx\r\n" 1343 " slot %08x %08x %08x %08x\r\n" 1344 " ep0 %08x %08x %016lx %08x\r\n", 1345 dev_ctx->ctx_slot.dwSctx0, dev_ctx->ctx_slot.dwSctx1, 1346 dev_ctx->ctx_slot.dwSctx2, dev_ctx->ctx_slot.dwSctx3, 1347 ep0_ctx->dwEpCtx0, ep0_ctx->dwEpCtx1, ep0_ctx->qwEpCtx2, 1348 ep0_ctx->dwEpCtx4)); 1349 1350done: 1351 return (cmderr); 1352} 1353 1354static int 1355pci_xhci_complete_commands(struct pci_xhci_softc *sc) 1356{ 1357 struct xhci_trb evtrb; 1358 struct xhci_trb *trb; 1359 uint64_t crcr; 1360 uint32_t ccs; /* cycle state (XHCI 4.9.2) */ 1361 uint32_t type; 1362 uint32_t slot; 1363 uint32_t cmderr; 1364 int error; 1365 1366 error = 0; 1367 sc->opregs.crcr |= XHCI_CRCR_LO_CRR; 1368 1369 trb = sc->opregs.cr_p; 1370 ccs = sc->opregs.crcr & XHCI_CRCR_LO_RCS; 1371 crcr = sc->opregs.crcr & ~0xF; 1372 1373 while (1) { 1374 sc->opregs.cr_p = trb; 1375 1376 type = XHCI_TRB_3_TYPE_GET(trb->dwTrb3); 1377 1378 if ((trb->dwTrb3 & XHCI_TRB_3_CYCLE_BIT) != 1379 (ccs & XHCI_TRB_3_CYCLE_BIT)) 1380 break; 1381 1382 DPRINTF(("pci_xhci: cmd type 0x%x, Trb0 x%016lx dwTrb2 x%08x" 1383 " dwTrb3 x%08x, TRB_CYCLE %u/ccs %u\r\n", 1384 type, trb->qwTrb0, trb->dwTrb2, trb->dwTrb3, 1385 trb->dwTrb3 & XHCI_TRB_3_CYCLE_BIT, ccs)); 1386 1387 cmderr = XHCI_TRB_ERROR_SUCCESS; 1388 evtrb.dwTrb2 = 0; 1389 evtrb.dwTrb3 = (ccs & XHCI_TRB_3_CYCLE_BIT) | 1390 XHCI_TRB_3_TYPE_SET(XHCI_TRB_EVENT_CMD_COMPLETE); 1391 slot = 0; 1392 1393 switch (type) { 1394 case XHCI_TRB_TYPE_LINK: /* 0x06 */ 1395 if (trb->dwTrb3 & XHCI_TRB_3_TC_BIT) 1396 ccs ^= XHCI_CRCR_LO_RCS; 1397 break; 1398 1399 case XHCI_TRB_TYPE_ENABLE_SLOT: /* 0x09 */ 1400 cmderr = pci_xhci_cmd_enable_slot(sc, &slot); 1401 break; 1402 1403 case XHCI_TRB_TYPE_DISABLE_SLOT: /* 0x0A */ 1404 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1405 cmderr = pci_xhci_cmd_disable_slot(sc, slot); 1406 break; 1407 1408 case XHCI_TRB_TYPE_ADDRESS_DEVICE: /* 0x0B */ 1409 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1410 cmderr = pci_xhci_cmd_address_device(sc, slot, trb); 1411 break; 1412 1413 case XHCI_TRB_TYPE_CONFIGURE_EP: /* 0x0C */ 1414 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1415 cmderr = pci_xhci_cmd_config_ep(sc, slot, trb); 1416 break; 1417 1418 case XHCI_TRB_TYPE_EVALUATE_CTX: /* 0x0D */ 1419 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1420 cmderr = pci_xhci_cmd_eval_ctx(sc, slot, trb); 1421 break; 1422 1423 case XHCI_TRB_TYPE_RESET_EP: /* 0x0E */ 1424 DPRINTF(("Reset Endpoint on slot %d\r\n", slot)); 1425 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1426 cmderr = pci_xhci_cmd_reset_ep(sc, slot, trb); 1427 break; 1428 1429 case XHCI_TRB_TYPE_STOP_EP: /* 0x0F */ 1430 DPRINTF(("Stop Endpoint on slot %d\r\n", slot)); 1431 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1432 cmderr = pci_xhci_cmd_reset_ep(sc, slot, trb); 1433 break; 1434 1435 case XHCI_TRB_TYPE_SET_TR_DEQUEUE: /* 0x10 */ 1436 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1437 cmderr = pci_xhci_cmd_set_tr(sc, slot, trb); 1438 break; 1439 1440 case XHCI_TRB_TYPE_RESET_DEVICE: /* 0x11 */ 1441 slot = XHCI_TRB_3_SLOT_GET(trb->dwTrb3); 1442 cmderr = pci_xhci_cmd_reset_device(sc, slot); 1443 break; 1444 1445 case XHCI_TRB_TYPE_FORCE_EVENT: /* 0x12 */ 1446 /* TODO: */ 1447 break; 1448 1449 case XHCI_TRB_TYPE_NEGOTIATE_BW: /* 0x13 */ 1450 break; 1451 1452 case XHCI_TRB_TYPE_SET_LATENCY_TOL: /* 0x14 */ 1453 break; 1454 1455 case XHCI_TRB_TYPE_GET_PORT_BW: /* 0x15 */ 1456 break; 1457 1458 case XHCI_TRB_TYPE_FORCE_HEADER: /* 0x16 */ 1459 break; 1460 1461 case XHCI_TRB_TYPE_NOOP_CMD: /* 0x17 */ 1462 break; 1463 1464 default: 1465 DPRINTF(("pci_xhci: unsupported cmd %x\r\n", type)); 1466 break; 1467 } 1468 1469 if (type != XHCI_TRB_TYPE_LINK) { 1470 /* 1471 * insert command completion event and assert intr 1472 */ 1473 evtrb.qwTrb0 = crcr; 1474 evtrb.dwTrb2 |= XHCI_TRB_2_ERROR_SET(cmderr); 1475 evtrb.dwTrb3 |= XHCI_TRB_3_SLOT_SET(slot); 1476 DPRINTF(("pci_xhci: command 0x%x result: 0x%x\r\n", 1477 type, cmderr)); 1478 pci_xhci_insert_event(sc, &evtrb, 1); 1479 } 1480 1481 trb = pci_xhci_trb_next(sc, trb, &crcr); 1482 } 1483 1484 sc->opregs.crcr = crcr | (sc->opregs.crcr & XHCI_CRCR_LO_CA) | ccs; 1485 sc->opregs.crcr &= ~XHCI_CRCR_LO_CRR; 1486 return (error); 1487} 1488 1489static void 1490pci_xhci_dump_trb(struct xhci_trb *trb) 1491{ 1492 static const char *trbtypes[] = { 1493 "RESERVED", 1494 "NORMAL", 1495 "SETUP_STAGE", 1496 "DATA_STAGE", 1497 "STATUS_STAGE", 1498 "ISOCH", 1499 "LINK", 1500 "EVENT_DATA", 1501 "NOOP", 1502 "ENABLE_SLOT", 1503 "DISABLE_SLOT", 1504 "ADDRESS_DEVICE", 1505 "CONFIGURE_EP", 1506 "EVALUATE_CTX", 1507 "RESET_EP", 1508 "STOP_EP", 1509 "SET_TR_DEQUEUE", 1510 "RESET_DEVICE", 1511 "FORCE_EVENT", 1512 "NEGOTIATE_BW", 1513 "SET_LATENCY_TOL", 1514 "GET_PORT_BW", 1515 "FORCE_HEADER", 1516 "NOOP_CMD" 1517 }; 1518 uint32_t type; 1519 1520 type = XHCI_TRB_3_TYPE_GET(trb->dwTrb3); 1521 DPRINTF(("pci_xhci: trb[@%p] type x%02x %s 0:x%016lx 2:x%08x 3:x%08x\r\n", 1522 trb, type, 1523 type <= XHCI_TRB_TYPE_NOOP_CMD ? trbtypes[type] : "INVALID", 1524 trb->qwTrb0, trb->dwTrb2, trb->dwTrb3)); 1525} 1526 1527static int 1528pci_xhci_xfer_complete(struct pci_xhci_softc *sc, struct usb_data_xfer *xfer, 1529 uint32_t slot, uint32_t epid, int *do_intr) 1530{ 1531 struct pci_xhci_dev_emu *dev; 1532 struct pci_xhci_dev_ep *devep; 1533 struct xhci_dev_ctx *dev_ctx; 1534 struct xhci_endp_ctx *ep_ctx; 1535 struct xhci_trb *trb; 1536 struct xhci_trb evtrb; 1537 uint32_t trbflags; 1538 uint32_t edtla; 1539 int i, err; 1540 1541 dev = XHCI_SLOTDEV_PTR(sc, slot); 1542 devep = &dev->eps[epid]; 1543 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 1544 1545 assert(dev_ctx != NULL); 1546 1547 ep_ctx = &dev_ctx->ctx_ep[epid]; 1548 1549 err = XHCI_TRB_ERROR_SUCCESS; 1550 *do_intr = 0; 1551 edtla = 0; 1552 1553 /* go through list of TRBs and insert event(s) */ 1554 for (i = xfer->head; xfer->ndata > 0; ) { 1555 evtrb.qwTrb0 = (uint64_t)xfer->data[i].hci_data; 1556 trb = XHCI_GADDR(sc, evtrb.qwTrb0); 1557 trbflags = trb->dwTrb3; 1558 1559 DPRINTF(("pci_xhci: xfer[%d] done?%u:%d trb %x %016lx %x " 1560 "(err %d) IOC?%d\r\n", 1561 i, xfer->data[i].processed, xfer->data[i].blen, 1562 XHCI_TRB_3_TYPE_GET(trbflags), evtrb.qwTrb0, 1563 trbflags, err, 1564 trb->dwTrb3 & XHCI_TRB_3_IOC_BIT ? 1 : 0)); 1565 1566 if (!xfer->data[i].processed) { 1567 xfer->head = i; 1568 break; 1569 } 1570 1571 xfer->ndata--; 1572 edtla += xfer->data[i].bdone; 1573 1574 trb->dwTrb3 = (trb->dwTrb3 & ~0x1) | (xfer->data[i].ccs); 1575 1576 pci_xhci_update_ep_ring(sc, dev, devep, ep_ctx, 1577 xfer->data[i].streamid, xfer->data[i].trbnext, 1578 xfer->data[i].ccs); 1579 1580 /* Only interrupt if IOC or short packet */ 1581 if (!(trb->dwTrb3 & XHCI_TRB_3_IOC_BIT) && 1582 !((err == XHCI_TRB_ERROR_SHORT_PKT) && 1583 (trb->dwTrb3 & XHCI_TRB_3_ISP_BIT))) { 1584 1585 i = (i + 1) % USB_MAX_XFER_BLOCKS; 1586 continue; 1587 } 1588 1589 evtrb.dwTrb2 = XHCI_TRB_2_ERROR_SET(err) | 1590 XHCI_TRB_2_REM_SET(xfer->data[i].blen); 1591 1592 evtrb.dwTrb3 = XHCI_TRB_3_TYPE_SET(XHCI_TRB_EVENT_TRANSFER) | 1593 XHCI_TRB_3_SLOT_SET(slot) | XHCI_TRB_3_EP_SET(epid); 1594 1595 if (XHCI_TRB_3_TYPE_GET(trbflags) == XHCI_TRB_TYPE_EVENT_DATA) { 1596 DPRINTF(("pci_xhci EVENT_DATA edtla %u\r\n", edtla)); 1597 evtrb.qwTrb0 = trb->qwTrb0; 1598 evtrb.dwTrb2 = (edtla & 0xFFFFF) | 1599 XHCI_TRB_2_ERROR_SET(err); 1600 evtrb.dwTrb3 |= XHCI_TRB_3_ED_BIT; 1601 edtla = 0; 1602 } 1603 1604 *do_intr = 1; 1605 1606 err = pci_xhci_insert_event(sc, &evtrb, 0); 1607 if (err != XHCI_TRB_ERROR_SUCCESS) { 1608 break; 1609 } 1610 1611 i = (i + 1) % USB_MAX_XFER_BLOCKS; 1612 } 1613 1614 return (err); 1615} 1616 1617static void 1618pci_xhci_update_ep_ring(struct pci_xhci_softc *sc, struct pci_xhci_dev_emu *dev, 1619 struct pci_xhci_dev_ep *devep, struct xhci_endp_ctx *ep_ctx, 1620 uint32_t streamid, uint64_t ringaddr, int ccs) 1621{ 1622 1623 if (XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0) != 0) { 1624 devep->ep_sctx[streamid].qwSctx0 = (ringaddr & ~0xFUL) | 1625 (ccs & 0x1); 1626 1627 devep->ep_sctx_trbs[streamid].ringaddr = ringaddr & ~0xFUL; 1628 devep->ep_sctx_trbs[streamid].ccs = ccs & 0x1; 1629 ep_ctx->qwEpCtx2 = (ep_ctx->qwEpCtx2 & ~0x1) | (ccs & 0x1); 1630 1631 DPRINTF(("xhci update ep-ring stream %d, addr %lx\r\n", 1632 streamid, devep->ep_sctx[streamid].qwSctx0)); 1633 } else { 1634 devep->ep_ringaddr = ringaddr & ~0xFUL; 1635 devep->ep_ccs = ccs & 0x1; 1636 devep->ep_tr = XHCI_GADDR(sc, ringaddr & ~0xFUL); 1637 ep_ctx->qwEpCtx2 = (ringaddr & ~0xFUL) | (ccs & 0x1); 1638 1639 DPRINTF(("xhci update ep-ring, addr %lx\r\n", 1640 (devep->ep_ringaddr | devep->ep_ccs))); 1641 } 1642} 1643 1644/* 1645 * Outstanding transfer still in progress (device NAK'd earlier) so retry 1646 * the transfer again to see if it succeeds. 1647 */ 1648static int 1649pci_xhci_try_usb_xfer(struct pci_xhci_softc *sc, 1650 struct pci_xhci_dev_emu *dev, struct pci_xhci_dev_ep *devep, 1651 struct xhci_endp_ctx *ep_ctx, uint32_t slot, uint32_t epid) 1652{ 1653 struct usb_data_xfer *xfer; 1654 int err; 1655 int do_intr; 1656 1657 ep_ctx->dwEpCtx0 = FIELD_REPLACE( 1658 ep_ctx->dwEpCtx0, XHCI_ST_EPCTX_RUNNING, 0x7, 0); 1659 1660 err = 0; 1661 do_intr = 0; 1662 1663 xfer = devep->ep_xfer; 1664 USB_DATA_XFER_LOCK(xfer); 1665 1666 /* outstanding requests queued up */ 1667 if (dev->dev_ue->ue_data != NULL) { 1668 err = dev->dev_ue->ue_data(dev->dev_sc, xfer, 1669 epid & 0x1 ? USB_XFER_IN : USB_XFER_OUT, epid/2); 1670 if (err == USB_ERR_CANCELLED) { 1671 if (USB_DATA_GET_ERRCODE(&xfer->data[xfer->head]) == 1672 USB_NAK) 1673 err = XHCI_TRB_ERROR_SUCCESS; 1674 } else { 1675 err = pci_xhci_xfer_complete(sc, xfer, slot, epid, 1676 &do_intr); 1677 if (err == XHCI_TRB_ERROR_SUCCESS && do_intr) { 1678 pci_xhci_assert_interrupt(sc); 1679 } 1680 1681 1682 /* XXX should not do it if error? */ 1683 USB_DATA_XFER_RESET(xfer); 1684 } 1685 } 1686 1687 USB_DATA_XFER_UNLOCK(xfer); 1688 1689 1690 return (err); 1691} 1692 1693 1694static int 1695pci_xhci_handle_transfer(struct pci_xhci_softc *sc, 1696 struct pci_xhci_dev_emu *dev, struct pci_xhci_dev_ep *devep, 1697 struct xhci_endp_ctx *ep_ctx, struct xhci_trb *trb, uint32_t slot, 1698 uint32_t epid, uint64_t addr, uint32_t ccs, uint32_t streamid) 1699{ 1700 struct xhci_trb *setup_trb; 1701 struct usb_data_xfer *xfer; 1702 struct usb_data_xfer_block *xfer_block; 1703 uint64_t val; 1704 uint32_t trbflags; 1705 int do_intr, err; 1706 int do_retry; 1707 1708 ep_ctx->dwEpCtx0 = FIELD_REPLACE(ep_ctx->dwEpCtx0, 1709 XHCI_ST_EPCTX_RUNNING, 0x7, 0); 1710 1711 xfer = devep->ep_xfer; 1712 USB_DATA_XFER_LOCK(xfer); 1713 1714 DPRINTF(("pci_xhci handle_transfer slot %u\r\n", slot)); 1715 1716retry: 1717 err = 0; 1718 do_retry = 0; 1719 do_intr = 0; 1720 setup_trb = NULL; 1721 1722 while (1) { 1723 pci_xhci_dump_trb(trb); 1724 1725 trbflags = trb->dwTrb3; 1726 1727 if (XHCI_TRB_3_TYPE_GET(trbflags) != XHCI_TRB_TYPE_LINK && 1728 (trbflags & XHCI_TRB_3_CYCLE_BIT) != 1729 (ccs & XHCI_TRB_3_CYCLE_BIT)) { 1730 DPRINTF(("Cycle-bit changed trbflags %x, ccs %x\r\n", 1731 trbflags & XHCI_TRB_3_CYCLE_BIT, ccs)); 1732 break; 1733 } 1734 1735 xfer_block = NULL; 1736 1737 switch (XHCI_TRB_3_TYPE_GET(trbflags)) { 1738 case XHCI_TRB_TYPE_LINK: 1739 if (trb->dwTrb3 & XHCI_TRB_3_TC_BIT) 1740 ccs ^= 0x1; 1741 1742 xfer_block = usb_data_xfer_append(xfer, NULL, 0, 1743 (void *)addr, ccs); 1744 xfer_block->processed = 1; 1745 break; 1746 1747 case XHCI_TRB_TYPE_SETUP_STAGE: 1748 if ((trbflags & XHCI_TRB_3_IDT_BIT) == 0 || 1749 XHCI_TRB_2_BYTES_GET(trb->dwTrb2) != 8) { 1750 DPRINTF(("pci_xhci: invalid setup trb\r\n")); 1751 err = XHCI_TRB_ERROR_TRB; 1752 goto errout; 1753 } 1754 setup_trb = trb; 1755 1756 val = trb->qwTrb0; 1757 if (!xfer->ureq) 1758 xfer->ureq = malloc( 1759 sizeof(struct usb_device_request)); 1760 memcpy(xfer->ureq, &val, 1761 sizeof(struct usb_device_request)); 1762 1763 xfer_block = usb_data_xfer_append(xfer, NULL, 0, 1764 (void *)addr, ccs); 1765 xfer_block->processed = 1; 1766 break; 1767 1768 case XHCI_TRB_TYPE_NORMAL: 1769 case XHCI_TRB_TYPE_ISOCH: 1770 if (setup_trb != NULL) { 1771 DPRINTF(("pci_xhci: trb not supposed to be in " 1772 "ctl scope\r\n")); 1773 err = XHCI_TRB_ERROR_TRB; 1774 goto errout; 1775 } 1776 /* fall through */ 1777 1778 case XHCI_TRB_TYPE_DATA_STAGE: 1779 xfer_block = usb_data_xfer_append(xfer, 1780 (void *)(trbflags & XHCI_TRB_3_IDT_BIT ? 1781 &trb->qwTrb0 : XHCI_GADDR(sc, trb->qwTrb0)), 1782 trb->dwTrb2 & 0x1FFFF, (void *)addr, ccs); 1783 break; 1784 1785 case XHCI_TRB_TYPE_STATUS_STAGE: 1786 xfer_block = usb_data_xfer_append(xfer, NULL, 0, 1787 (void *)addr, ccs); 1788 break; 1789 1790 case XHCI_TRB_TYPE_NOOP: 1791 xfer_block = usb_data_xfer_append(xfer, NULL, 0, 1792 (void *)addr, ccs); 1793 xfer_block->processed = 1; 1794 break; 1795 1796 case XHCI_TRB_TYPE_EVENT_DATA: 1797 xfer_block = usb_data_xfer_append(xfer, NULL, 0, 1798 (void *)addr, ccs); 1799 if ((epid > 1) && (trbflags & XHCI_TRB_3_IOC_BIT)) { 1800 xfer_block->processed = 1; 1801 } 1802 break; 1803 1804 default: 1805 DPRINTF(("pci_xhci: handle xfer unexpected trb type " 1806 "0x%x\r\n", 1807 XHCI_TRB_3_TYPE_GET(trbflags))); 1808 err = XHCI_TRB_ERROR_TRB; 1809 goto errout; 1810 } 1811 1812 trb = pci_xhci_trb_next(sc, trb, &addr); 1813 1814 DPRINTF(("pci_xhci: next trb: 0x%lx\r\n", (uint64_t)trb)); 1815 1816 if (xfer_block) { 1817 xfer_block->trbnext = addr; 1818 xfer_block->streamid = streamid; 1819 } 1820 1821 if (!setup_trb && !(trbflags & XHCI_TRB_3_CHAIN_BIT) && 1822 XHCI_TRB_3_TYPE_GET(trbflags) != XHCI_TRB_TYPE_LINK) { 1823 break; 1824 } 1825 1826 /* handle current batch that requires interrupt on complete */ 1827 if (trbflags & XHCI_TRB_3_IOC_BIT) { 1828 DPRINTF(("pci_xhci: trb IOC bit set\r\n")); 1829 if (epid == 1) 1830 do_retry = 1; 1831 break; 1832 } 1833 } 1834 1835 DPRINTF(("pci_xhci[%d]: xfer->ndata %u\r\n", __LINE__, xfer->ndata)); 1836 1837 if (epid == 1) { 1838 err = USB_ERR_NOT_STARTED; 1839 if (dev->dev_ue->ue_request != NULL) 1840 err = dev->dev_ue->ue_request(dev->dev_sc, xfer); 1841 setup_trb = NULL; 1842 } else { 1843 /* handle data transfer */ 1844 pci_xhci_try_usb_xfer(sc, dev, devep, ep_ctx, slot, epid); 1845 err = XHCI_TRB_ERROR_SUCCESS; 1846 goto errout; 1847 } 1848 1849 err = USB_TO_XHCI_ERR(err); 1850 if ((err == XHCI_TRB_ERROR_SUCCESS) || 1851 (err == XHCI_TRB_ERROR_SHORT_PKT)) { 1852 err = pci_xhci_xfer_complete(sc, xfer, slot, epid, &do_intr); 1853 if (err != XHCI_TRB_ERROR_SUCCESS) 1854 do_retry = 0; 1855 } 1856 1857errout: 1858 if (err == XHCI_TRB_ERROR_EV_RING_FULL) 1859 DPRINTF(("pci_xhci[%d]: event ring full\r\n", __LINE__)); 1860 1861 if (!do_retry) 1862 USB_DATA_XFER_UNLOCK(xfer); 1863 1864 if (do_intr) 1865 pci_xhci_assert_interrupt(sc); 1866 1867 if (do_retry) { 1868 USB_DATA_XFER_RESET(xfer); 1869 DPRINTF(("pci_xhci[%d]: retry:continuing with next TRBs\r\n", 1870 __LINE__)); 1871 goto retry; 1872 } 1873 1874 if (epid == 1) 1875 USB_DATA_XFER_RESET(xfer); 1876 1877 return (err); 1878} 1879 1880static void 1881pci_xhci_device_doorbell(struct pci_xhci_softc *sc, uint32_t slot, 1882 uint32_t epid, uint32_t streamid) 1883{ 1884 struct pci_xhci_dev_emu *dev; 1885 struct pci_xhci_dev_ep *devep; 1886 struct xhci_dev_ctx *dev_ctx; 1887 struct xhci_endp_ctx *ep_ctx; 1888 struct pci_xhci_trb_ring *sctx_tr; 1889 struct xhci_trb *trb; 1890 uint64_t ringaddr; 1891 uint32_t ccs; 1892 1893 DPRINTF(("pci_xhci doorbell slot %u epid %u stream %u\r\n", 1894 slot, epid, streamid)); 1895 1896 if (slot == 0 || slot > sc->ndevices) { 1897 DPRINTF(("pci_xhci: invalid doorbell slot %u\r\n", slot)); 1898 return; 1899 } 1900 1901 dev = XHCI_SLOTDEV_PTR(sc, slot); 1902 devep = &dev->eps[epid]; 1903 dev_ctx = pci_xhci_get_dev_ctx(sc, slot); 1904 if (!dev_ctx) { 1905 return; 1906 } 1907 ep_ctx = &dev_ctx->ctx_ep[epid]; 1908 1909 sctx_tr = NULL; 1910 1911 DPRINTF(("pci_xhci: device doorbell ep[%u] %08x %08x %016lx %08x\r\n", 1912 epid, ep_ctx->dwEpCtx0, ep_ctx->dwEpCtx1, ep_ctx->qwEpCtx2, 1913 ep_ctx->dwEpCtx4)); 1914 1915 if (ep_ctx->qwEpCtx2 == 0) 1916 return; 1917 1918 /* handle pending transfers */ 1919 if (devep->ep_xfer->ndata > 0) { 1920 pci_xhci_try_usb_xfer(sc, dev, devep, ep_ctx, slot, epid); 1921 return; 1922 } 1923 1924 /* get next trb work item */ 1925 if (XHCI_EPCTX_0_MAXP_STREAMS_GET(ep_ctx->dwEpCtx0) != 0) { 1926 sctx_tr = &devep->ep_sctx_trbs[streamid]; 1927 ringaddr = sctx_tr->ringaddr; 1928 ccs = sctx_tr->ccs; 1929 trb = XHCI_GADDR(sc, sctx_tr->ringaddr & ~0xFUL); 1930 DPRINTF(("doorbell, stream %u, ccs %lx, trb ccs %x\r\n", 1931 streamid, ep_ctx->qwEpCtx2 & XHCI_TRB_3_CYCLE_BIT, 1932 trb->dwTrb3 & XHCI_TRB_3_CYCLE_BIT)); 1933 } else { 1934 ringaddr = devep->ep_ringaddr; 1935 ccs = devep->ep_ccs; 1936 trb = devep->ep_tr; 1937 DPRINTF(("doorbell, ccs %lx, trb ccs %x\r\n", 1938 ep_ctx->qwEpCtx2 & XHCI_TRB_3_CYCLE_BIT, 1939 trb->dwTrb3 & XHCI_TRB_3_CYCLE_BIT)); 1940 } 1941 1942 if (XHCI_TRB_3_TYPE_GET(trb->dwTrb3) == 0) { 1943 DPRINTF(("pci_xhci: ring %lx trb[%lx] EP %u is RESERVED?\r\n", 1944 ep_ctx->qwEpCtx2, devep->ep_ringaddr, epid)); 1945 return; 1946 } 1947 1948 pci_xhci_handle_transfer(sc, dev, devep, ep_ctx, trb, slot, epid, 1949 ringaddr, ccs, streamid); 1950} 1951 1952static void 1953pci_xhci_dbregs_write(struct pci_xhci_softc *sc, uint64_t offset, 1954 uint64_t value) 1955{ 1956 1957 offset = (offset - sc->dboff) / sizeof(uint32_t); 1958 1959 DPRINTF(("pci_xhci: doorbell write offset 0x%lx: 0x%lx\r\n", 1960 offset, value)); 1961 1962 if (XHCI_HALTED(sc)) { 1963 DPRINTF(("pci_xhci: controller halted\r\n")); 1964 return; 1965 } 1966 1967 if (offset == 0) 1968 pci_xhci_complete_commands(sc); 1969 else if (sc->portregs != NULL) 1970 pci_xhci_device_doorbell(sc, offset, 1971 XHCI_DB_TARGET_GET(value), XHCI_DB_SID_GET(value)); 1972} 1973 1974static void 1975pci_xhci_rtsregs_write(struct pci_xhci_softc *sc, uint64_t offset, 1976 uint64_t value) 1977{ 1978 struct pci_xhci_rtsregs *rts; 1979 1980 offset -= sc->rtsoff; 1981 1982 if (offset == 0) { 1983 DPRINTF(("pci_xhci attempted write to MFINDEX\r\n")); 1984 return; 1985 } 1986 1987 DPRINTF(("pci_xhci: runtime regs write offset 0x%lx: 0x%lx\r\n", 1988 offset, value)); 1989 1990 offset -= 0x20; /* start of intrreg */ 1991 1992 rts = &sc->rtsregs; 1993 1994 switch (offset) { 1995 case 0x00: 1996 if (value & XHCI_IMAN_INTR_PEND) 1997 rts->intrreg.iman &= ~XHCI_IMAN_INTR_PEND; 1998 rts->intrreg.iman = (value & XHCI_IMAN_INTR_ENA) | 1999 (rts->intrreg.iman & XHCI_IMAN_INTR_PEND); 2000 2001 if (!(value & XHCI_IMAN_INTR_ENA)) 2002 pci_xhci_deassert_interrupt(sc); 2003 2004 break; 2005 2006 case 0x04: 2007 rts->intrreg.imod = value; 2008 break; 2009 2010 case 0x08: 2011 rts->intrreg.erstsz = value & 0xFFFF; 2012 break; 2013 2014 case 0x10: 2015 /* ERSTBA low bits */ 2016 rts->intrreg.erstba = MASK_64_HI(sc->rtsregs.intrreg.erstba) | 2017 (value & ~0x3F); 2018 break; 2019 2020 case 0x14: 2021 /* ERSTBA high bits */ 2022 rts->intrreg.erstba = (value << 32) | 2023 MASK_64_LO(sc->rtsregs.intrreg.erstba); 2024 2025 rts->erstba_p = XHCI_GADDR(sc, 2026 sc->rtsregs.intrreg.erstba & ~0x3FUL); 2027 2028 rts->erst_p = XHCI_GADDR(sc, 2029 sc->rtsregs.erstba_p->qwEvrsTablePtr & ~0x3FUL); 2030 2031 rts->er_enq_idx = 0; 2032 rts->er_events_cnt = 0; 2033 2034 DPRINTF(("pci_xhci: wr erstba erst (%p) ptr 0x%lx, sz %u\r\n", 2035 rts->erstba_p, 2036 rts->erstba_p->qwEvrsTablePtr, 2037 rts->erstba_p->dwEvrsTableSize)); 2038 break; 2039 2040 case 0x18: 2041 /* ERDP low bits */ 2042 rts->intrreg.erdp = 2043 MASK_64_HI(sc->rtsregs.intrreg.erdp) | 2044 (rts->intrreg.erdp & XHCI_ERDP_LO_BUSY) | 2045 (value & ~0xF); 2046 if (value & XHCI_ERDP_LO_BUSY) { 2047 rts->intrreg.erdp &= ~XHCI_ERDP_LO_BUSY; 2048 rts->intrreg.iman &= ~XHCI_IMAN_INTR_PEND; 2049 } 2050 2051 rts->er_deq_seg = XHCI_ERDP_LO_SINDEX(value); 2052 2053 break; 2054 2055 case 0x1C: 2056 /* ERDP high bits */ 2057 rts->intrreg.erdp = (value << 32) | 2058 MASK_64_LO(sc->rtsregs.intrreg.erdp); 2059 2060 if (rts->er_events_cnt > 0) { 2061 uint64_t erdp; 2062 uint32_t erdp_i; 2063 2064 erdp = rts->intrreg.erdp & ~0xF; 2065 erdp_i = (erdp - rts->erstba_p->qwEvrsTablePtr) / 2066 sizeof(struct xhci_trb); 2067 2068 if (erdp_i <= rts->er_enq_idx) 2069 rts->er_events_cnt = rts->er_enq_idx - erdp_i; 2070 else 2071 rts->er_events_cnt = 2072 rts->erstba_p->dwEvrsTableSize - 2073 (erdp_i - rts->er_enq_idx); 2074 2075 DPRINTF(("pci_xhci: erdp 0x%lx, events cnt %u\r\n", 2076 erdp, rts->er_events_cnt)); 2077 } 2078 2079 break; 2080 2081 default: 2082 DPRINTF(("pci_xhci attempted write to RTS offset 0x%lx\r\n", 2083 offset)); 2084 break; 2085 } 2086} 2087 2088static uint64_t 2089pci_xhci_portregs_read(struct pci_xhci_softc *sc, uint64_t offset) 2090{ 2091 int port; 2092 uint32_t *p; 2093 2094 if (sc->portregs == NULL) 2095 return (0); 2096 2097 port = (offset - 0x3F0) / 0x10; 2098 2099 if (port > XHCI_MAX_DEVS) { 2100 DPRINTF(("pci_xhci: portregs_read port %d >= XHCI_MAX_DEVS\r\n", 2101 port)); 2102 2103 /* return default value for unused port */ 2104 return (XHCI_PS_SPEED_SET(3)); 2105 } 2106 2107 offset = (offset - 0x3F0) % 0x10; 2108 2109 p = &sc->portregs[port].portsc; 2110 p += offset / sizeof(uint32_t); 2111 2112 DPRINTF(("pci_xhci: portregs read offset 0x%lx port %u -> 0x%x\r\n", 2113 offset, port, *p)); 2114 2115 return (*p); 2116} 2117 2118static void 2119pci_xhci_hostop_write(struct pci_xhci_softc *sc, uint64_t offset, 2120 uint64_t value) 2121{ 2122 offset -= XHCI_CAPLEN; 2123 2124 if (offset < 0x400) 2125 DPRINTF(("pci_xhci: hostop write offset 0x%lx: 0x%lx\r\n", 2126 offset, value)); 2127 2128 switch (offset) { 2129 case XHCI_USBCMD: 2130 sc->opregs.usbcmd = pci_xhci_usbcmd_write(sc, value & 0x3F0F); 2131 break; 2132 2133 case XHCI_USBSTS: 2134 /* clear bits on write */ 2135 sc->opregs.usbsts &= ~(value & 2136 (XHCI_STS_HSE|XHCI_STS_EINT|XHCI_STS_PCD|XHCI_STS_SSS| 2137 XHCI_STS_RSS|XHCI_STS_SRE|XHCI_STS_CNR)); 2138 break; 2139 2140 case XHCI_PAGESIZE: 2141 /* read only */ 2142 break; 2143 2144 case XHCI_DNCTRL: 2145 sc->opregs.dnctrl = value & 0xFFFF; 2146 break; 2147 2148 case XHCI_CRCR_LO: 2149 if (sc->opregs.crcr & XHCI_CRCR_LO_CRR) { 2150 sc->opregs.crcr &= ~(XHCI_CRCR_LO_CS|XHCI_CRCR_LO_CA); 2151 sc->opregs.crcr |= value & 2152 (XHCI_CRCR_LO_CS|XHCI_CRCR_LO_CA); 2153 } else { 2154 sc->opregs.crcr = MASK_64_HI(sc->opregs.crcr) | 2155 (value & (0xFFFFFFC0 | XHCI_CRCR_LO_RCS)); 2156 } 2157 break; 2158 2159 case XHCI_CRCR_HI: 2160 if (!(sc->opregs.crcr & XHCI_CRCR_LO_CRR)) { 2161 sc->opregs.crcr = MASK_64_LO(sc->opregs.crcr) | 2162 (value << 32); 2163 2164 sc->opregs.cr_p = XHCI_GADDR(sc, 2165 sc->opregs.crcr & ~0xF); 2166 } 2167 2168 if (sc->opregs.crcr & XHCI_CRCR_LO_CS) { 2169 /* Stop operation of Command Ring */ 2170 } 2171 2172 if (sc->opregs.crcr & XHCI_CRCR_LO_CA) { 2173 /* Abort command */ 2174 } 2175 2176 break; 2177 2178 case XHCI_DCBAAP_LO: 2179 sc->opregs.dcbaap = MASK_64_HI(sc->opregs.dcbaap) | 2180 (value & 0xFFFFFFC0); 2181 break; 2182 2183 case XHCI_DCBAAP_HI: 2184 sc->opregs.dcbaap = MASK_64_LO(sc->opregs.dcbaap) | 2185 (value << 32); 2186 sc->opregs.dcbaa_p = XHCI_GADDR(sc, sc->opregs.dcbaap & ~0x3FUL); 2187 2188 DPRINTF(("pci_xhci: opregs dcbaap = 0x%lx (vaddr 0x%lx)\r\n", 2189 sc->opregs.dcbaap, (uint64_t)sc->opregs.dcbaa_p)); 2190 break; 2191 2192 case XHCI_CONFIG: 2193 sc->opregs.config = value & 0x03FF; 2194 break; 2195 2196 default: 2197 if (offset >= 0x400) 2198 pci_xhci_portregs_write(sc, offset, value); 2199 2200 break; 2201 } 2202} 2203 2204 2205static void 2206pci_xhci_write(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, 2207 int baridx, uint64_t offset, int size, uint64_t value) 2208{ 2209 struct pci_xhci_softc *sc; 2210 2211 sc = pi->pi_arg; 2212 2213 assert(baridx == 0); 2214 2215 2216 pthread_mutex_lock(&sc->mtx); 2217 if (offset < XHCI_CAPLEN) /* read only registers */ 2218 WPRINTF(("pci_xhci: write RO-CAPs offset %ld\r\n", offset)); 2219 else if (offset < sc->dboff) 2220 pci_xhci_hostop_write(sc, offset, value); 2221 else if (offset < sc->rtsoff) 2222 pci_xhci_dbregs_write(sc, offset, value); 2223 else if (offset < sc->regsend) 2224 pci_xhci_rtsregs_write(sc, offset, value); 2225 else 2226 WPRINTF(("pci_xhci: write invalid offset %ld\r\n", offset)); 2227 2228 pthread_mutex_unlock(&sc->mtx); 2229} 2230 2231static uint64_t 2232pci_xhci_hostcap_read(struct pci_xhci_softc *sc, uint64_t offset) 2233{ 2234 uint64_t value; 2235 2236 switch (offset) { 2237 case XHCI_CAPLENGTH: /* 0x00 */ 2238 value = sc->caplength; 2239 break; 2240 2241 case XHCI_HCSPARAMS1: /* 0x04 */ 2242 value = sc->hcsparams1; 2243 break; 2244 2245 case XHCI_HCSPARAMS2: /* 0x08 */ 2246 value = sc->hcsparams2; 2247 break; 2248 2249 case XHCI_HCSPARAMS3: /* 0x0C */ 2250 value = sc->hcsparams3; 2251 break; 2252 2253 case XHCI_HCSPARAMS0: /* 0x10 */ 2254 value = sc->hccparams1; 2255 break; 2256 2257 case XHCI_DBOFF: /* 0x14 */ 2258 value = sc->dboff; 2259 break; 2260 2261 case XHCI_RTSOFF: /* 0x18 */ 2262 value = sc->rtsoff; 2263 break; 2264 2265 case XHCI_HCCPRAMS2: /* 0x1C */ 2266 value = sc->hccparams2; 2267 break; 2268 2269 default: 2270 value = 0; 2271 break; 2272 } 2273 2274 DPRINTF(("pci_xhci: hostcap read offset 0x%lx -> 0x%lx\r\n", 2275 offset, value)); 2276 2277 return (value); 2278} 2279 2280static uint64_t 2281pci_xhci_hostop_read(struct pci_xhci_softc *sc, uint64_t offset) 2282{ 2283 uint64_t value; 2284 2285 offset = (offset - XHCI_CAPLEN); 2286 2287 switch (offset) { 2288 case XHCI_USBCMD: /* 0x00 */ 2289 value = sc->opregs.usbcmd; 2290 break; 2291 2292 case XHCI_USBSTS: /* 0x04 */ 2293 value = sc->opregs.usbsts; 2294 break; 2295 2296 case XHCI_PAGESIZE: /* 0x08 */ 2297 value = sc->opregs.pgsz; 2298 break; 2299 2300 case XHCI_DNCTRL: /* 0x14 */ 2301 value = sc->opregs.dnctrl; 2302 break; 2303 2304 case XHCI_CRCR_LO: /* 0x18 */ 2305 value = sc->opregs.crcr & XHCI_CRCR_LO_CRR; 2306 break; 2307 2308 case XHCI_CRCR_HI: /* 0x1C */ 2309 value = 0; 2310 break; 2311 2312 case XHCI_DCBAAP_LO: /* 0x30 */ 2313 value = sc->opregs.dcbaap & 0xFFFFFFFF; 2314 break; 2315 2316 case XHCI_DCBAAP_HI: /* 0x34 */ 2317 value = (sc->opregs.dcbaap >> 32) & 0xFFFFFFFF; 2318 break; 2319 2320 case XHCI_CONFIG: /* 0x38 */ 2321 value = sc->opregs.config; 2322 break; 2323 2324 default: 2325 if (offset >= 0x400) 2326 value = pci_xhci_portregs_read(sc, offset); 2327 else 2328 value = 0; 2329 2330 break; 2331 } 2332 2333 if (offset < 0x400) 2334 DPRINTF(("pci_xhci: hostop read offset 0x%lx -> 0x%lx\r\n", 2335 offset, value)); 2336 2337 return (value); 2338} 2339 2340static uint64_t 2341pci_xhci_dbregs_read(struct pci_xhci_softc *sc, uint64_t offset) 2342{ 2343 2344 /* read doorbell always returns 0 */ 2345 return (0); 2346} 2347 2348static uint64_t 2349pci_xhci_rtsregs_read(struct pci_xhci_softc *sc, uint64_t offset) 2350{ 2351 uint32_t value; 2352 2353 offset -= sc->rtsoff; 2354 value = 0; 2355 2356 if (offset == XHCI_MFINDEX) { 2357 value = sc->rtsregs.mfindex; 2358 } else if (offset >= 0x20) { 2359 int item; 2360 uint32_t *p; 2361 2362 offset -= 0x20; 2363 item = offset % 32; 2364 2365 assert(offset < sizeof(sc->rtsregs.intrreg)); 2366 2367 p = &sc->rtsregs.intrreg.iman; 2368 p += item / sizeof(uint32_t); 2369 value = *p; 2370 } 2371 2372 DPRINTF(("pci_xhci: rtsregs read offset 0x%lx -> 0x%x\r\n", 2373 offset, value)); 2374 2375 return (value); 2376} 2377 2378static uint64_t 2379pci_xhci_xecp_read(struct pci_xhci_softc *sc, uint64_t offset) 2380{ 2381 uint32_t value; 2382 2383 offset -= sc->regsend; 2384 value = 0; 2385 2386 switch (offset) { 2387 case 0: 2388 /* rev major | rev minor | next-cap | cap-id */ 2389 value = (0x02 << 24) | (4 << 8) | XHCI_ID_PROTOCOLS; 2390 break; 2391 case 4: 2392 /* name string = "USB" */ 2393 value = 0x20425355; 2394 break; 2395 case 8: 2396 /* psic | proto-defined | compat # | compat offset */ 2397 value = ((XHCI_MAX_DEVS/2) << 8) | sc->usb2_port_start; 2398 break; 2399 case 12: 2400 break; 2401 case 16: 2402 /* rev major | rev minor | next-cap | cap-id */ 2403 value = (0x03 << 24) | XHCI_ID_PROTOCOLS; 2404 break; 2405 case 20: 2406 /* name string = "USB" */ 2407 value = 0x20425355; 2408 break; 2409 case 24: 2410 /* psic | proto-defined | compat # | compat offset */ 2411 value = ((XHCI_MAX_DEVS/2) << 8) | sc->usb3_port_start; 2412 break; 2413 case 28: 2414 break; 2415 default: 2416 DPRINTF(("pci_xhci: xecp invalid offset 0x%lx\r\n", offset)); 2417 break; 2418 } 2419 2420 DPRINTF(("pci_xhci: xecp read offset 0x%lx -> 0x%x\r\n", 2421 offset, value)); 2422 2423 return (value); 2424} 2425 2426 2427static uint64_t 2428pci_xhci_read(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx, 2429 uint64_t offset, int size) 2430{ 2431 struct pci_xhci_softc *sc; 2432 uint32_t value; 2433 2434 sc = pi->pi_arg; 2435 2436 assert(baridx == 0); 2437 2438 pthread_mutex_lock(&sc->mtx); 2439 if (offset < XHCI_CAPLEN) 2440 value = pci_xhci_hostcap_read(sc, offset); 2441 else if (offset < sc->dboff) 2442 value = pci_xhci_hostop_read(sc, offset); 2443 else if (offset < sc->rtsoff) 2444 value = pci_xhci_dbregs_read(sc, offset); 2445 else if (offset < sc->regsend) 2446 value = pci_xhci_rtsregs_read(sc, offset); 2447 else if (offset < (sc->regsend + 4*32)) 2448 value = pci_xhci_xecp_read(sc, offset); 2449 else { 2450 value = 0; 2451 WPRINTF(("pci_xhci: read invalid offset %ld\r\n", offset)); 2452 } 2453 2454 pthread_mutex_unlock(&sc->mtx); 2455 2456 switch (size) { 2457 case 1: 2458 value &= 0xFF; 2459 break; 2460 case 2: 2461 value &= 0xFFFF; 2462 break; 2463 case 4: 2464 value &= 0xFFFFFFFF; 2465 break; 2466 } 2467 2468 return (value); 2469} 2470 2471static void 2472pci_xhci_reset_port(struct pci_xhci_softc *sc, int portn, int warm) 2473{ 2474 struct pci_xhci_portregs *port; 2475 struct pci_xhci_dev_emu *dev; 2476 struct xhci_trb evtrb; 2477 int error; 2478 2479 assert(portn <= XHCI_MAX_DEVS); 2480 2481 DPRINTF(("xhci reset port %d\r\n", portn)); 2482 2483 port = XHCI_PORTREG_PTR(sc, portn); 2484 dev = XHCI_DEVINST_PTR(sc, portn); 2485 if (dev) { 2486 port->portsc &= ~(XHCI_PS_PLS_MASK | XHCI_PS_PR | XHCI_PS_PRC); 2487 port->portsc |= XHCI_PS_PED | 2488 XHCI_PS_SPEED_SET(dev->dev_ue->ue_usbspeed); 2489 2490 if (warm && dev->dev_ue->ue_usbver == 3) { 2491 port->portsc |= XHCI_PS_WRC; 2492 } 2493 2494 if ((port->portsc & XHCI_PS_PRC) == 0) { 2495 port->portsc |= XHCI_PS_PRC; 2496 2497 pci_xhci_set_evtrb(&evtrb, portn, 2498 XHCI_TRB_ERROR_SUCCESS, 2499 XHCI_TRB_EVENT_PORT_STS_CHANGE); 2500 error = pci_xhci_insert_event(sc, &evtrb, 1); 2501 if (error != XHCI_TRB_ERROR_SUCCESS) 2502 DPRINTF(("xhci reset port insert event " 2503 "failed\r\n")); 2504 } 2505 } 2506} 2507 2508static void 2509pci_xhci_init_port(struct pci_xhci_softc *sc, int portn) 2510{ 2511 struct pci_xhci_portregs *port; 2512 struct pci_xhci_dev_emu *dev; 2513 2514 port = XHCI_PORTREG_PTR(sc, portn); 2515 dev = XHCI_DEVINST_PTR(sc, portn); 2516 if (dev) { 2517 port->portsc = XHCI_PS_CCS | /* connected */ 2518 XHCI_PS_PP; /* port power */ 2519 2520 if (dev->dev_ue->ue_usbver == 2) { 2521 port->portsc |= XHCI_PS_PLS_SET(UPS_PORT_LS_POLL) | 2522 XHCI_PS_SPEED_SET(dev->dev_ue->ue_usbspeed); 2523 } else { 2524 port->portsc |= XHCI_PS_PLS_SET(UPS_PORT_LS_U0) | 2525 XHCI_PS_PED | /* enabled */ 2526 XHCI_PS_SPEED_SET(dev->dev_ue->ue_usbspeed); 2527 } 2528 2529 DPRINTF(("Init port %d 0x%x\n", portn, port->portsc)); 2530 } else { 2531 port->portsc = XHCI_PS_PLS_SET(UPS_PORT_LS_RX_DET) | XHCI_PS_PP; 2532 DPRINTF(("Init empty port %d 0x%x\n", portn, port->portsc)); 2533 } 2534} 2535 2536static int 2537pci_xhci_dev_intr(struct usb_hci *hci, int epctx) 2538{ 2539 struct pci_xhci_dev_emu *dev; 2540 struct xhci_dev_ctx *dev_ctx; 2541 struct xhci_trb evtrb; 2542 struct pci_xhci_softc *sc; 2543 struct pci_xhci_portregs *p; 2544 struct xhci_endp_ctx *ep_ctx; 2545 int error; 2546 int dir_in; 2547 int epid; 2548 2549 dir_in = epctx & 0x80; 2550 epid = epctx & ~0x80; 2551 2552 /* HW endpoint contexts are 0-15; convert to epid based on dir */ 2553 epid = (epid * 2) + (dir_in ? 1 : 0); 2554 2555 assert(epid >= 1 && epid <= 31); 2556 2557 dev = hci->hci_sc; 2558 sc = dev->xsc; 2559 2560 /* check if device is ready; OS has to initialise it */ 2561 if (sc->rtsregs.erstba_p == NULL || 2562 (sc->opregs.usbcmd & XHCI_CMD_RS) == 0 || 2563 dev->dev_ctx == NULL) 2564 return (0); 2565 2566 p = XHCI_PORTREG_PTR(sc, hci->hci_port); 2567 2568 /* raise event if link U3 (suspended) state */ 2569 if (XHCI_PS_PLS_GET(p->portsc) == 3) { 2570 p->portsc &= ~XHCI_PS_PLS_MASK; 2571 p->portsc |= XHCI_PS_PLS_SET(UPS_PORT_LS_RESUME); 2572 if ((p->portsc & XHCI_PS_PLC) != 0) 2573 return (0); 2574 2575 p->portsc |= XHCI_PS_PLC; 2576 2577 pci_xhci_set_evtrb(&evtrb, hci->hci_port, 2578 XHCI_TRB_ERROR_SUCCESS, XHCI_TRB_EVENT_PORT_STS_CHANGE); 2579 error = pci_xhci_insert_event(sc, &evtrb, 0); 2580 if (error != XHCI_TRB_ERROR_SUCCESS) 2581 goto done; 2582 } 2583 2584 dev_ctx = dev->dev_ctx; 2585 ep_ctx = &dev_ctx->ctx_ep[epid]; 2586 if ((ep_ctx->dwEpCtx0 & 0x7) == XHCI_ST_EPCTX_DISABLED) { 2587 DPRINTF(("xhci device interrupt on disabled endpoint %d\r\n", 2588 epid)); 2589 return (0); 2590 } 2591 2592 DPRINTF(("xhci device interrupt on endpoint %d\r\n", epid)); 2593 2594 pci_xhci_device_doorbell(sc, hci->hci_port, epid, 0); 2595 2596done: 2597 return (error); 2598} 2599 2600static int 2601pci_xhci_dev_event(struct usb_hci *hci, enum hci_usbev evid, void *param) 2602{ 2603 2604 DPRINTF(("xhci device event port %d\r\n", hci->hci_port)); 2605 return (0); 2606} 2607 2608 2609 2610static void 2611pci_xhci_device_usage(char *opt) 2612{ 2613 2614 fprintf(stderr, "Invalid USB emulation \"%s\"\r\n", opt); 2615} 2616 2617static int 2618pci_xhci_parse_opts(struct pci_xhci_softc *sc, char *opts) 2619{ 2620 struct pci_xhci_dev_emu **devices; 2621 struct pci_xhci_dev_emu *dev; 2622 struct usb_devemu *ue; 2623 void *devsc; 2624 char *uopt, *xopts, *config; 2625 int usb3_port, usb2_port, i; 2626 2627 usb3_port = sc->usb3_port_start - 1; 2628 usb2_port = sc->usb2_port_start - 1; 2629 devices = NULL; 2630 2631 if (opts == NULL) 2632 goto portsfinal; 2633 2634 devices = calloc(XHCI_MAX_DEVS, sizeof(struct pci_xhci_dev_emu *)); 2635 2636 sc->slots = calloc(XHCI_MAX_SLOTS, sizeof(struct pci_xhci_dev_emu *)); 2637 sc->devices = devices; 2638 sc->ndevices = 0; 2639 2640 uopt = strdup(opts); 2641 for (xopts = strtok(uopt, ","); 2642 xopts != NULL; 2643 xopts = strtok(NULL, ",")) { 2644 if (usb2_port == ((sc->usb2_port_start-1) + XHCI_MAX_DEVS/2) || 2645 usb3_port == ((sc->usb3_port_start-1) + XHCI_MAX_DEVS/2)) { 2646 WPRINTF(("pci_xhci max number of USB 2 or 3 " 2647 "devices reached, max %d\r\n", XHCI_MAX_DEVS/2)); 2648 usb2_port = usb3_port = -1; 2649 goto done; 2650 } 2651 2652 /* device[=<config>] */ 2653 if ((config = strchr(xopts, '=')) == NULL) 2654 config = ""; /* no config */ 2655 else 2656 *config++ = '\0'; 2657 2658 ue = usb_emu_finddev(xopts); 2659 if (ue == NULL) { 2660 pci_xhci_device_usage(xopts); 2661 DPRINTF(("pci_xhci device not found %s\r\n", xopts)); 2662 usb2_port = usb3_port = -1; 2663 goto done; 2664 } 2665 2666 DPRINTF(("pci_xhci adding device %s, opts \"%s\"\r\n", 2667 xopts, config)); 2668 2669 dev = calloc(1, sizeof(struct pci_xhci_dev_emu)); 2670 dev->xsc = sc; 2671 dev->hci.hci_sc = dev; 2672 dev->hci.hci_intr = pci_xhci_dev_intr; 2673 dev->hci.hci_event = pci_xhci_dev_event; 2674 2675 if (ue->ue_usbver == 2) { 2676 dev->hci.hci_port = usb2_port + 1; 2677 devices[usb2_port] = dev; 2678 usb2_port++; 2679 } else { 2680 dev->hci.hci_port = usb3_port + 1; 2681 devices[usb3_port] = dev; 2682 usb3_port++; 2683 } 2684 2685 dev->hci.hci_address = 0; 2686 devsc = ue->ue_init(&dev->hci, config); 2687 if (devsc == NULL) { 2688 pci_xhci_device_usage(xopts); 2689 usb2_port = usb3_port = -1; 2690 goto done; 2691 } 2692 2693 dev->dev_ue = ue; 2694 dev->dev_sc = devsc; 2695 2696 /* assign slot number to device */ 2697 sc->slots[sc->ndevices] = dev; 2698 2699 sc->ndevices++; 2700 } 2701 2702portsfinal: 2703 sc->portregs = calloc(XHCI_MAX_DEVS, sizeof(struct pci_xhci_portregs)); 2704 2705 if (sc->ndevices > 0) { 2706 /* port and slot numbering start from 1 */ 2707 sc->devices--; 2708 sc->portregs--; 2709 sc->slots--; 2710 2711 for (i = 1; i <= XHCI_MAX_DEVS; i++) { 2712 pci_xhci_init_port(sc, i); 2713 } 2714 } else { 2715 WPRINTF(("pci_xhci no USB devices configured\r\n")); 2716 sc->ndevices = 1; 2717 } 2718 2719done: 2720 if (devices != NULL) { 2721 if (usb2_port <= 0 && usb3_port <= 0) { 2722 sc->devices = NULL; 2723 for (i = 0; devices[i] != NULL; i++) 2724 free(devices[i]); 2725 sc->ndevices = -1; 2726 2727 free(devices); 2728 } 2729 } 2730 return (sc->ndevices); 2731} 2732 2733static int 2734pci_xhci_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts) 2735{ 2736 struct pci_xhci_softc *sc; 2737 int error; 2738 2739 if (xhci_in_use) { 2740 WPRINTF(("pci_xhci controller already defined\r\n")); 2741 return (-1); 2742 } 2743 xhci_in_use = 1; 2744 2745 sc = calloc(1, sizeof(struct pci_xhci_softc)); 2746 pi->pi_arg = sc; 2747 sc->xsc_pi = pi; 2748 2749 sc->usb2_port_start = (XHCI_MAX_DEVS/2) + 1; 2750 sc->usb3_port_start = 1; 2751 2752 /* discover devices */ 2753 error = pci_xhci_parse_opts(sc, opts); 2754 if (error < 0) 2755 goto done; 2756 else 2757 error = 0; 2758 2759 sc->caplength = XHCI_SET_CAPLEN(XHCI_CAPLEN) | 2760 XHCI_SET_HCIVERSION(0x0100); 2761 sc->hcsparams1 = XHCI_SET_HCSP1_MAXPORTS(XHCI_MAX_DEVS) | 2762 XHCI_SET_HCSP1_MAXINTR(1) | /* interrupters */ 2763 XHCI_SET_HCSP1_MAXSLOTS(XHCI_MAX_SLOTS); 2764 sc->hcsparams2 = XHCI_SET_HCSP2_ERSTMAX(XHCI_ERST_MAX) | 2765 XHCI_SET_HCSP2_IST(0x04); 2766 sc->hcsparams3 = 0; /* no latency */ 2767 sc->hccparams1 = XHCI_SET_HCCP1_NSS(1) | /* no 2nd-streams */ 2768 XHCI_SET_HCCP1_SPC(1) | /* short packet */ 2769 XHCI_SET_HCCP1_MAXPSA(XHCI_STREAMS_MAX); 2770 sc->hccparams2 = XHCI_SET_HCCP2_LEC(1) | 2771 XHCI_SET_HCCP2_U3C(1); 2772 sc->dboff = XHCI_SET_DOORBELL(XHCI_CAPLEN + XHCI_PORTREGS_START + 2773 XHCI_MAX_DEVS * sizeof(struct pci_xhci_portregs)); 2774 2775 /* dboff must be 32-bit aligned */ 2776 if (sc->dboff & 0x3) 2777 sc->dboff = (sc->dboff + 0x3) & ~0x3; 2778 2779 /* rtsoff must be 32-bytes aligned */ 2780 sc->rtsoff = XHCI_SET_RTSOFFSET(sc->dboff + (XHCI_MAX_SLOTS+1) * 32); 2781 if (sc->rtsoff & 0x1F) 2782 sc->rtsoff = (sc->rtsoff + 0x1F) & ~0x1F; 2783 2784 DPRINTF(("pci_xhci dboff: 0x%x, rtsoff: 0x%x\r\n", sc->dboff, 2785 sc->rtsoff)); 2786 2787 sc->opregs.usbsts = XHCI_STS_HCH; 2788 sc->opregs.pgsz = XHCI_PAGESIZE_4K; 2789 2790 pci_xhci_reset(sc); 2791 2792 sc->regsend = sc->rtsoff + 0x20 + 32; /* only 1 intrpter */ 2793 2794 /* 2795 * Set extended capabilities pointer to be after regsend; 2796 * value of xecp field is 32-bit offset. 2797 */ 2798 sc->hccparams1 |= XHCI_SET_HCCP1_XECP(sc->regsend/4); 2799 2800 pci_set_cfgdata16(pi, PCIR_DEVICE, 0x1E31); 2801 pci_set_cfgdata16(pi, PCIR_VENDOR, 0x8086); 2802 pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_SERIALBUS); 2803 pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_SERIALBUS_USB); 2804 pci_set_cfgdata8(pi, PCIR_PROGIF,PCIP_SERIALBUS_USB_XHCI); 2805 pci_set_cfgdata8(pi, PCI_USBREV, PCI_USB_REV_3_0); 2806 2807 pci_emul_add_msicap(pi, 1); 2808 2809 /* regsend + xecp registers */ 2810 pci_emul_alloc_bar(pi, 0, PCIBAR_MEM32, sc->regsend + 4*32); 2811 DPRINTF(("pci_xhci pci_emu_alloc: %d\r\n", sc->regsend + 4*32)); 2812 2813 2814 pci_lintr_request(pi); 2815 2816 pthread_mutex_init(&sc->mtx, NULL); 2817 2818done: 2819 if (error) { 2820 free(sc); 2821 } 2822 2823 return (error); 2824} 2825 2826 2827 2828struct pci_devemu pci_de_xhci = { 2829 .pe_emu = "xhci", 2830 .pe_init = pci_xhci_init, 2831 .pe_barwrite = pci_xhci_write, 2832 .pe_barread = pci_xhci_read 2833}; 2834PCI_EMUL_SET(pci_de_xhci); 2835