1/* $FreeBSD: releng/10.3/sys/dev/usb/controller/ehci.c 273883 2014-10-31 07:38:49Z hselasky $ */ 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. All rights reserved. 5 * Copyright (c) 2004 Lennart Augustsson. All rights reserved. 6 * Copyright (c) 2004 Charles M. Hannum. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30/* 31 * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 32 * 33 * The EHCI 0.96 spec can be found at 34 * http://developer.intel.com/technology/usb/download/ehci-r096.pdf 35 * The EHCI 1.0 spec can be found at 36 * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 37 * and the USB 2.0 spec at 38 * http://www.usb.org/developers/docs/usb_20.zip 39 * 40 */ 41 42/* 43 * TODO: 44 * 1) command failures are not recovered correctly 45 */ 46 47#ifdef USB_GLOBAL_INCLUDE_FILE 48#include USB_GLOBAL_INCLUDE_FILE 49#else 50#include <sys/stdint.h> 51#include <sys/stddef.h> 52#include <sys/param.h> 53#include <sys/queue.h> 54#include <sys/types.h> 55#include <sys/systm.h> 56#include <sys/kernel.h> 57#include <sys/bus.h> 58#include <sys/module.h> 59#include <sys/lock.h> 60#include <sys/mutex.h> 61#include <sys/condvar.h> 62#include <sys/sysctl.h> 63#include <sys/sx.h> 64#include <sys/unistd.h> 65#include <sys/callout.h> 66#include <sys/malloc.h> 67#include <sys/priv.h> 68 69#include <dev/usb/usb.h> 70#include <dev/usb/usbdi.h> 71 72#define USB_DEBUG_VAR ehcidebug 73 74#include <dev/usb/usb_core.h> 75#include <dev/usb/usb_debug.h> 76#include <dev/usb/usb_busdma.h> 77#include <dev/usb/usb_process.h> 78#include <dev/usb/usb_transfer.h> 79#include <dev/usb/usb_device.h> 80#include <dev/usb/usb_hub.h> 81#include <dev/usb/usb_util.h> 82 83#include <dev/usb/usb_controller.h> 84#include <dev/usb/usb_bus.h> 85#endif /* USB_GLOBAL_INCLUDE_FILE */ 86 87#include <dev/usb/controller/ehci.h> 88#include <dev/usb/controller/ehcireg.h> 89 90#define EHCI_BUS2SC(bus) \ 91 ((ehci_softc_t *)(((uint8_t *)(bus)) - \ 92 ((uint8_t *)&(((ehci_softc_t *)0)->sc_bus)))) 93 94#ifdef USB_DEBUG 95static int ehcidebug = 0; 96static int ehcinohighspeed = 0; 97static int ehciiaadbug = 0; 98static int ehcilostintrbug = 0; 99 100static SYSCTL_NODE(_hw_usb, OID_AUTO, ehci, CTLFLAG_RW, 0, "USB ehci"); 101SYSCTL_INT(_hw_usb_ehci, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN, 102 &ehcidebug, 0, "Debug level"); 103TUNABLE_INT("hw.usb.ehci.debug", &ehcidebug); 104SYSCTL_INT(_hw_usb_ehci, OID_AUTO, no_hs, CTLFLAG_RW | CTLFLAG_TUN, 105 &ehcinohighspeed, 0, "Disable High Speed USB"); 106TUNABLE_INT("hw.usb.ehci.no_hs", &ehcinohighspeed); 107SYSCTL_INT(_hw_usb_ehci, OID_AUTO, iaadbug, CTLFLAG_RW | CTLFLAG_TUN, 108 &ehciiaadbug, 0, "Enable doorbell bug workaround"); 109TUNABLE_INT("hw.usb.ehci.iaadbug", &ehciiaadbug); 110SYSCTL_INT(_hw_usb_ehci, OID_AUTO, lostintrbug, CTLFLAG_RW | CTLFLAG_TUN, 111 &ehcilostintrbug, 0, "Enable lost interrupt bug workaround"); 112TUNABLE_INT("hw.usb.ehci.lostintrbug", &ehcilostintrbug); 113 114 115static void ehci_dump_regs(ehci_softc_t *sc); 116static void ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_t *sqh); 117 118#endif 119 120#define EHCI_INTR_ENDPT 1 121 122extern struct usb_bus_methods ehci_bus_methods; 123extern struct usb_pipe_methods ehci_device_bulk_methods; 124extern struct usb_pipe_methods ehci_device_ctrl_methods; 125extern struct usb_pipe_methods ehci_device_intr_methods; 126extern struct usb_pipe_methods ehci_device_isoc_fs_methods; 127extern struct usb_pipe_methods ehci_device_isoc_hs_methods; 128 129static void ehci_do_poll(struct usb_bus *); 130static void ehci_device_done(struct usb_xfer *, usb_error_t); 131static uint8_t ehci_check_transfer(struct usb_xfer *); 132static void ehci_timeout(void *); 133static void ehci_poll_timeout(void *); 134 135static void ehci_root_intr(ehci_softc_t *sc); 136 137struct ehci_std_temp { 138 ehci_softc_t *sc; 139 struct usb_page_cache *pc; 140 ehci_qtd_t *td; 141 ehci_qtd_t *td_next; 142 uint32_t average; 143 uint32_t qtd_status; 144 uint32_t len; 145 uint16_t max_frame_size; 146 uint8_t shortpkt; 147 uint8_t auto_data_toggle; 148 uint8_t setup_alt_next; 149 uint8_t last_frame; 150}; 151 152void 153ehci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb) 154{ 155 ehci_softc_t *sc = EHCI_BUS2SC(bus); 156 uint32_t i; 157 158 cb(bus, &sc->sc_hw.pframes_pc, &sc->sc_hw.pframes_pg, 159 sizeof(uint32_t) * EHCI_FRAMELIST_COUNT, EHCI_FRAMELIST_ALIGN); 160 161 cb(bus, &sc->sc_hw.terminate_pc, &sc->sc_hw.terminate_pg, 162 sizeof(struct ehci_qh_sub), EHCI_QH_ALIGN); 163 164 cb(bus, &sc->sc_hw.async_start_pc, &sc->sc_hw.async_start_pg, 165 sizeof(ehci_qh_t), EHCI_QH_ALIGN); 166 167 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 168 cb(bus, sc->sc_hw.intr_start_pc + i, 169 sc->sc_hw.intr_start_pg + i, 170 sizeof(ehci_qh_t), EHCI_QH_ALIGN); 171 } 172 173 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 174 cb(bus, sc->sc_hw.isoc_hs_start_pc + i, 175 sc->sc_hw.isoc_hs_start_pg + i, 176 sizeof(ehci_itd_t), EHCI_ITD_ALIGN); 177 } 178 179 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 180 cb(bus, sc->sc_hw.isoc_fs_start_pc + i, 181 sc->sc_hw.isoc_fs_start_pg + i, 182 sizeof(ehci_sitd_t), EHCI_SITD_ALIGN); 183 } 184} 185 186usb_error_t 187ehci_reset(ehci_softc_t *sc) 188{ 189 uint32_t hcr; 190 int i; 191 192 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 193 for (i = 0; i < 100; i++) { 194 usb_pause_mtx(NULL, hz / 128); 195 hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; 196 if (!hcr) { 197 if (sc->sc_flags & (EHCI_SCFLG_SETMODE | EHCI_SCFLG_BIGEMMIO)) { 198 /* 199 * Force USBMODE as requested. Controllers 200 * may have multiple operating modes. 201 */ 202 uint32_t usbmode = EOREAD4(sc, EHCI_USBMODE); 203 if (sc->sc_flags & EHCI_SCFLG_SETMODE) { 204 usbmode = (usbmode &~ EHCI_UM_CM) | EHCI_UM_CM_HOST; 205 device_printf(sc->sc_bus.bdev, 206 "set host controller mode\n"); 207 } 208 if (sc->sc_flags & EHCI_SCFLG_BIGEMMIO) { 209 usbmode = (usbmode &~ EHCI_UM_ES) | EHCI_UM_ES_BE; 210 device_printf(sc->sc_bus.bdev, 211 "set big-endian mode\n"); 212 } 213 EOWRITE4(sc, EHCI_USBMODE, usbmode); 214 } 215 return (0); 216 } 217 } 218 device_printf(sc->sc_bus.bdev, "reset timeout\n"); 219 return (USB_ERR_IOERROR); 220} 221 222static usb_error_t 223ehci_hcreset(ehci_softc_t *sc) 224{ 225 uint32_t hcr; 226 int i; 227 228 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 229 for (i = 0; i < 100; i++) { 230 usb_pause_mtx(NULL, hz / 128); 231 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 232 if (hcr) 233 break; 234 } 235 if (!hcr) 236 /* 237 * Fall through and try reset anyway even though 238 * Table 2-9 in the EHCI spec says this will result 239 * in undefined behavior. 240 */ 241 device_printf(sc->sc_bus.bdev, "stop timeout\n"); 242 243 return (ehci_reset(sc)); 244} 245 246static int 247ehci_init_sub(struct ehci_softc *sc) 248{ 249 struct usb_page_search buf_res; 250 uint32_t cparams; 251 uint32_t hcr; 252 uint8_t i; 253 254 cparams = EREAD4(sc, EHCI_HCCPARAMS); 255 256 DPRINTF("cparams=0x%x\n", cparams); 257 258 if (EHCI_HCC_64BIT(cparams)) { 259 DPRINTF("HCC uses 64-bit structures\n"); 260 261 /* MUST clear segment register if 64 bit capable */ 262 EOWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 263 } 264 265 usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); 266 EOWRITE4(sc, EHCI_PERIODICLISTBASE, buf_res.physaddr); 267 268 usbd_get_page(&sc->sc_hw.async_start_pc, 0, &buf_res); 269 EOWRITE4(sc, EHCI_ASYNCLISTADDR, buf_res.physaddr | EHCI_LINK_QH); 270 271 /* enable interrupts */ 272 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 273 274 /* turn on controller */ 275 EOWRITE4(sc, EHCI_USBCMD, 276 EHCI_CMD_ITC_1 | /* 1 microframes interrupt delay */ 277 (EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_FLS_M) | 278 EHCI_CMD_ASE | 279 EHCI_CMD_PSE | 280 EHCI_CMD_RS); 281 282 /* Take over port ownership */ 283 EOWRITE4(sc, EHCI_CONFIGFLAG, EHCI_CONF_CF); 284 285 for (i = 0; i < 100; i++) { 286 usb_pause_mtx(NULL, hz / 128); 287 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 288 if (!hcr) { 289 break; 290 } 291 } 292 if (hcr) { 293 device_printf(sc->sc_bus.bdev, "run timeout\n"); 294 return (USB_ERR_IOERROR); 295 } 296 return (USB_ERR_NORMAL_COMPLETION); 297} 298 299usb_error_t 300ehci_init(ehci_softc_t *sc) 301{ 302 struct usb_page_search buf_res; 303 uint32_t version; 304 uint32_t sparams; 305 uint16_t i; 306 uint16_t x; 307 uint16_t y; 308 uint16_t bit; 309 usb_error_t err = 0; 310 311 DPRINTF("start\n"); 312 313 usb_callout_init_mtx(&sc->sc_tmo_pcd, &sc->sc_bus.bus_mtx, 0); 314 usb_callout_init_mtx(&sc->sc_tmo_poll, &sc->sc_bus.bus_mtx, 0); 315 316 sc->sc_offs = EHCI_CAPLENGTH(EREAD4(sc, EHCI_CAPLEN_HCIVERSION)); 317 318#ifdef USB_DEBUG 319 if (ehciiaadbug) 320 sc->sc_flags |= EHCI_SCFLG_IAADBUG; 321 if (ehcilostintrbug) 322 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 323 if (ehcidebug > 2) { 324 ehci_dump_regs(sc); 325 } 326#endif 327 328 version = EHCI_HCIVERSION(EREAD4(sc, EHCI_CAPLEN_HCIVERSION)); 329 device_printf(sc->sc_bus.bdev, "EHCI version %x.%x\n", 330 version >> 8, version & 0xff); 331 332 sparams = EREAD4(sc, EHCI_HCSPARAMS); 333 DPRINTF("sparams=0x%x\n", sparams); 334 335 sc->sc_noport = EHCI_HCS_N_PORTS(sparams); 336 sc->sc_bus.usbrev = USB_REV_2_0; 337 338 if (!(sc->sc_flags & EHCI_SCFLG_DONTRESET)) { 339 /* Reset the controller */ 340 DPRINTF("%s: resetting\n", 341 device_get_nameunit(sc->sc_bus.bdev)); 342 343 err = ehci_hcreset(sc); 344 if (err) { 345 device_printf(sc->sc_bus.bdev, "reset timeout\n"); 346 return (err); 347 } 348 } 349 350 /* 351 * use current frame-list-size selection 0: 1024*4 bytes 1: 512*4 352 * bytes 2: 256*4 bytes 3: unknown 353 */ 354 if (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD)) == 3) { 355 device_printf(sc->sc_bus.bdev, "invalid frame-list-size\n"); 356 return (USB_ERR_IOERROR); 357 } 358 /* set up the bus struct */ 359 sc->sc_bus.methods = &ehci_bus_methods; 360 361 sc->sc_eintrs = EHCI_NORMAL_INTRS; 362 363 if (1) { 364 struct ehci_qh_sub *qh; 365 366 usbd_get_page(&sc->sc_hw.terminate_pc, 0, &buf_res); 367 368 qh = buf_res.buffer; 369 370 sc->sc_terminate_self = htohc32(sc, buf_res.physaddr); 371 372 /* init terminate TD */ 373 qh->qtd_next = 374 htohc32(sc, EHCI_LINK_TERMINATE); 375 qh->qtd_altnext = 376 htohc32(sc, EHCI_LINK_TERMINATE); 377 qh->qtd_status = 378 htohc32(sc, EHCI_QTD_HALTED); 379 } 380 381 for (i = 0; i < EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 382 ehci_qh_t *qh; 383 384 usbd_get_page(sc->sc_hw.intr_start_pc + i, 0, &buf_res); 385 386 qh = buf_res.buffer; 387 388 /* initialize page cache pointer */ 389 390 qh->page_cache = sc->sc_hw.intr_start_pc + i; 391 392 /* store a pointer to queue head */ 393 394 sc->sc_intr_p_last[i] = qh; 395 396 qh->qh_self = 397 htohc32(sc, buf_res.physaddr) | 398 htohc32(sc, EHCI_LINK_QH); 399 400 qh->qh_endp = 401 htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH)); 402 qh->qh_endphub = 403 htohc32(sc, EHCI_QH_SET_MULT(1)); 404 qh->qh_curqtd = 0; 405 406 qh->qh_qtd.qtd_next = 407 htohc32(sc, EHCI_LINK_TERMINATE); 408 qh->qh_qtd.qtd_altnext = 409 htohc32(sc, EHCI_LINK_TERMINATE); 410 qh->qh_qtd.qtd_status = 411 htohc32(sc, EHCI_QTD_HALTED); 412 } 413 414 /* 415 * the QHs are arranged to give poll intervals that are 416 * powers of 2 times 1ms 417 */ 418 bit = EHCI_VIRTUAL_FRAMELIST_COUNT / 2; 419 while (bit) { 420 x = bit; 421 while (x & bit) { 422 ehci_qh_t *qh_x; 423 ehci_qh_t *qh_y; 424 425 y = (x ^ bit) | (bit / 2); 426 427 qh_x = sc->sc_intr_p_last[x]; 428 qh_y = sc->sc_intr_p_last[y]; 429 430 /* 431 * the next QH has half the poll interval 432 */ 433 qh_x->qh_link = qh_y->qh_self; 434 435 x++; 436 } 437 bit >>= 1; 438 } 439 440 if (1) { 441 ehci_qh_t *qh; 442 443 qh = sc->sc_intr_p_last[0]; 444 445 /* the last (1ms) QH terminates */ 446 qh->qh_link = htohc32(sc, EHCI_LINK_TERMINATE); 447 } 448 for (i = 0; i < EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 449 ehci_sitd_t *sitd; 450 ehci_itd_t *itd; 451 452 usbd_get_page(sc->sc_hw.isoc_fs_start_pc + i, 0, &buf_res); 453 454 sitd = buf_res.buffer; 455 456 /* initialize page cache pointer */ 457 458 sitd->page_cache = sc->sc_hw.isoc_fs_start_pc + i; 459 460 /* store a pointer to the transfer descriptor */ 461 462 sc->sc_isoc_fs_p_last[i] = sitd; 463 464 /* initialize full speed isochronous */ 465 466 sitd->sitd_self = 467 htohc32(sc, buf_res.physaddr) | 468 htohc32(sc, EHCI_LINK_SITD); 469 470 sitd->sitd_back = 471 htohc32(sc, EHCI_LINK_TERMINATE); 472 473 sitd->sitd_next = 474 sc->sc_intr_p_last[i | (EHCI_VIRTUAL_FRAMELIST_COUNT / 2)]->qh_self; 475 476 477 usbd_get_page(sc->sc_hw.isoc_hs_start_pc + i, 0, &buf_res); 478 479 itd = buf_res.buffer; 480 481 /* initialize page cache pointer */ 482 483 itd->page_cache = sc->sc_hw.isoc_hs_start_pc + i; 484 485 /* store a pointer to the transfer descriptor */ 486 487 sc->sc_isoc_hs_p_last[i] = itd; 488 489 /* initialize high speed isochronous */ 490 491 itd->itd_self = 492 htohc32(sc, buf_res.physaddr) | 493 htohc32(sc, EHCI_LINK_ITD); 494 495 itd->itd_next = 496 sitd->sitd_self; 497 } 498 499 usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); 500 501 if (1) { 502 uint32_t *pframes; 503 504 pframes = buf_res.buffer; 505 506 /* 507 * execution order: 508 * pframes -> high speed isochronous -> 509 * full speed isochronous -> interrupt QH's 510 */ 511 for (i = 0; i < EHCI_FRAMELIST_COUNT; i++) { 512 pframes[i] = sc->sc_isoc_hs_p_last 513 [i & (EHCI_VIRTUAL_FRAMELIST_COUNT - 1)]->itd_self; 514 } 515 } 516 usbd_get_page(&sc->sc_hw.async_start_pc, 0, &buf_res); 517 518 if (1) { 519 520 ehci_qh_t *qh; 521 522 qh = buf_res.buffer; 523 524 /* initialize page cache pointer */ 525 526 qh->page_cache = &sc->sc_hw.async_start_pc; 527 528 /* store a pointer to the queue head */ 529 530 sc->sc_async_p_last = qh; 531 532 /* init dummy QH that starts the async list */ 533 534 qh->qh_self = 535 htohc32(sc, buf_res.physaddr) | 536 htohc32(sc, EHCI_LINK_QH); 537 538 /* fill the QH */ 539 qh->qh_endp = 540 htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) | EHCI_QH_HRECL); 541 qh->qh_endphub = htohc32(sc, EHCI_QH_SET_MULT(1)); 542 qh->qh_link = qh->qh_self; 543 qh->qh_curqtd = 0; 544 545 /* fill the overlay qTD */ 546 qh->qh_qtd.qtd_next = htohc32(sc, EHCI_LINK_TERMINATE); 547 qh->qh_qtd.qtd_altnext = htohc32(sc, EHCI_LINK_TERMINATE); 548 qh->qh_qtd.qtd_status = htohc32(sc, EHCI_QTD_HALTED); 549 } 550 /* flush all cache into memory */ 551 552 usb_bus_mem_flush_all(&sc->sc_bus, &ehci_iterate_hw_softc); 553 554#ifdef USB_DEBUG 555 if (ehcidebug) { 556 ehci_dump_sqh(sc, sc->sc_async_p_last); 557 } 558#endif 559 560 /* finial setup */ 561 err = ehci_init_sub(sc); 562 563 if (!err) { 564 /* catch any lost interrupts */ 565 ehci_do_poll(&sc->sc_bus); 566 } 567 return (err); 568} 569 570/* 571 * shut down the controller when the system is going down 572 */ 573void 574ehci_detach(ehci_softc_t *sc) 575{ 576 USB_BUS_LOCK(&sc->sc_bus); 577 578 usb_callout_stop(&sc->sc_tmo_pcd); 579 usb_callout_stop(&sc->sc_tmo_poll); 580 581 EOWRITE4(sc, EHCI_USBINTR, 0); 582 USB_BUS_UNLOCK(&sc->sc_bus); 583 584 if (ehci_hcreset(sc)) { 585 DPRINTF("reset failed!\n"); 586 } 587 588 /* XXX let stray task complete */ 589 usb_pause_mtx(NULL, hz / 20); 590 591 usb_callout_drain(&sc->sc_tmo_pcd); 592 usb_callout_drain(&sc->sc_tmo_poll); 593} 594 595static void 596ehci_suspend(ehci_softc_t *sc) 597{ 598 DPRINTF("stopping the HC\n"); 599 600 /* reset HC */ 601 ehci_hcreset(sc); 602} 603 604static void 605ehci_resume(ehci_softc_t *sc) 606{ 607 /* reset HC */ 608 ehci_hcreset(sc); 609 610 /* setup HC */ 611 ehci_init_sub(sc); 612 613 /* catch any lost interrupts */ 614 ehci_do_poll(&sc->sc_bus); 615} 616 617#ifdef USB_DEBUG 618static void 619ehci_dump_regs(ehci_softc_t *sc) 620{ 621 uint32_t i; 622 623 i = EOREAD4(sc, EHCI_USBCMD); 624 printf("cmd=0x%08x\n", i); 625 626 if (i & EHCI_CMD_ITC_1) 627 printf(" EHCI_CMD_ITC_1\n"); 628 if (i & EHCI_CMD_ITC_2) 629 printf(" EHCI_CMD_ITC_2\n"); 630 if (i & EHCI_CMD_ITC_4) 631 printf(" EHCI_CMD_ITC_4\n"); 632 if (i & EHCI_CMD_ITC_8) 633 printf(" EHCI_CMD_ITC_8\n"); 634 if (i & EHCI_CMD_ITC_16) 635 printf(" EHCI_CMD_ITC_16\n"); 636 if (i & EHCI_CMD_ITC_32) 637 printf(" EHCI_CMD_ITC_32\n"); 638 if (i & EHCI_CMD_ITC_64) 639 printf(" EHCI_CMD_ITC_64\n"); 640 if (i & EHCI_CMD_ASPME) 641 printf(" EHCI_CMD_ASPME\n"); 642 if (i & EHCI_CMD_ASPMC) 643 printf(" EHCI_CMD_ASPMC\n"); 644 if (i & EHCI_CMD_LHCR) 645 printf(" EHCI_CMD_LHCR\n"); 646 if (i & EHCI_CMD_IAAD) 647 printf(" EHCI_CMD_IAAD\n"); 648 if (i & EHCI_CMD_ASE) 649 printf(" EHCI_CMD_ASE\n"); 650 if (i & EHCI_CMD_PSE) 651 printf(" EHCI_CMD_PSE\n"); 652 if (i & EHCI_CMD_FLS_M) 653 printf(" EHCI_CMD_FLS_M\n"); 654 if (i & EHCI_CMD_HCRESET) 655 printf(" EHCI_CMD_HCRESET\n"); 656 if (i & EHCI_CMD_RS) 657 printf(" EHCI_CMD_RS\n"); 658 659 i = EOREAD4(sc, EHCI_USBSTS); 660 661 printf("sts=0x%08x\n", i); 662 663 if (i & EHCI_STS_ASS) 664 printf(" EHCI_STS_ASS\n"); 665 if (i & EHCI_STS_PSS) 666 printf(" EHCI_STS_PSS\n"); 667 if (i & EHCI_STS_REC) 668 printf(" EHCI_STS_REC\n"); 669 if (i & EHCI_STS_HCH) 670 printf(" EHCI_STS_HCH\n"); 671 if (i & EHCI_STS_IAA) 672 printf(" EHCI_STS_IAA\n"); 673 if (i & EHCI_STS_HSE) 674 printf(" EHCI_STS_HSE\n"); 675 if (i & EHCI_STS_FLR) 676 printf(" EHCI_STS_FLR\n"); 677 if (i & EHCI_STS_PCD) 678 printf(" EHCI_STS_PCD\n"); 679 if (i & EHCI_STS_ERRINT) 680 printf(" EHCI_STS_ERRINT\n"); 681 if (i & EHCI_STS_INT) 682 printf(" EHCI_STS_INT\n"); 683 684 printf("ien=0x%08x\n", 685 EOREAD4(sc, EHCI_USBINTR)); 686 printf("frindex=0x%08x ctrdsegm=0x%08x periodic=0x%08x async=0x%08x\n", 687 EOREAD4(sc, EHCI_FRINDEX), 688 EOREAD4(sc, EHCI_CTRLDSSEGMENT), 689 EOREAD4(sc, EHCI_PERIODICLISTBASE), 690 EOREAD4(sc, EHCI_ASYNCLISTADDR)); 691 for (i = 1; i <= sc->sc_noport; i++) { 692 printf("port %d status=0x%08x\n", i, 693 EOREAD4(sc, EHCI_PORTSC(i))); 694 } 695} 696 697static void 698ehci_dump_link(ehci_softc_t *sc, uint32_t link, int type) 699{ 700 link = hc32toh(sc, link); 701 printf("0x%08x", link); 702 if (link & EHCI_LINK_TERMINATE) 703 printf("<T>"); 704 else { 705 printf("<"); 706 if (type) { 707 switch (EHCI_LINK_TYPE(link)) { 708 case EHCI_LINK_ITD: 709 printf("ITD"); 710 break; 711 case EHCI_LINK_QH: 712 printf("QH"); 713 break; 714 case EHCI_LINK_SITD: 715 printf("SITD"); 716 break; 717 case EHCI_LINK_FSTN: 718 printf("FSTN"); 719 break; 720 } 721 } 722 printf(">"); 723 } 724} 725 726static void 727ehci_dump_qtd(ehci_softc_t *sc, ehci_qtd_t *qtd) 728{ 729 uint32_t s; 730 731 printf(" next="); 732 ehci_dump_link(sc, qtd->qtd_next, 0); 733 printf(" altnext="); 734 ehci_dump_link(sc, qtd->qtd_altnext, 0); 735 printf("\n"); 736 s = hc32toh(sc, qtd->qtd_status); 737 printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n", 738 s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s), 739 EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s)); 740 printf(" cerr=%d pid=%d stat=%s%s%s%s%s%s%s%s\n", 741 EHCI_QTD_GET_CERR(s), EHCI_QTD_GET_PID(s), 742 (s & EHCI_QTD_ACTIVE) ? "ACTIVE" : "NOT_ACTIVE", 743 (s & EHCI_QTD_HALTED) ? "-HALTED" : "", 744 (s & EHCI_QTD_BUFERR) ? "-BUFERR" : "", 745 (s & EHCI_QTD_BABBLE) ? "-BABBLE" : "", 746 (s & EHCI_QTD_XACTERR) ? "-XACTERR" : "", 747 (s & EHCI_QTD_MISSEDMICRO) ? "-MISSED" : "", 748 (s & EHCI_QTD_SPLITXSTATE) ? "-SPLIT" : "", 749 (s & EHCI_QTD_PINGSTATE) ? "-PING" : ""); 750 751 for (s = 0; s < 5; s++) { 752 printf(" buffer[%d]=0x%08x\n", s, 753 hc32toh(sc, qtd->qtd_buffer[s])); 754 } 755 for (s = 0; s < 5; s++) { 756 printf(" buffer_hi[%d]=0x%08x\n", s, 757 hc32toh(sc, qtd->qtd_buffer_hi[s])); 758 } 759} 760 761static uint8_t 762ehci_dump_sqtd(ehci_softc_t *sc, ehci_qtd_t *sqtd) 763{ 764 uint8_t temp; 765 766 usb_pc_cpu_invalidate(sqtd->page_cache); 767 printf("QTD(%p) at 0x%08x:\n", sqtd, hc32toh(sc, sqtd->qtd_self)); 768 ehci_dump_qtd(sc, sqtd); 769 temp = (sqtd->qtd_next & htohc32(sc, EHCI_LINK_TERMINATE)) ? 1 : 0; 770 return (temp); 771} 772 773static void 774ehci_dump_sqtds(ehci_softc_t *sc, ehci_qtd_t *sqtd) 775{ 776 uint16_t i; 777 uint8_t stop; 778 779 stop = 0; 780 for (i = 0; sqtd && (i < 20) && !stop; sqtd = sqtd->obj_next, i++) { 781 stop = ehci_dump_sqtd(sc, sqtd); 782 } 783 if (sqtd) { 784 printf("dump aborted, too many TDs\n"); 785 } 786} 787 788static void 789ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_t *qh) 790{ 791 uint32_t endp; 792 uint32_t endphub; 793 794 usb_pc_cpu_invalidate(qh->page_cache); 795 printf("QH(%p) at 0x%08x:\n", qh, hc32toh(sc, qh->qh_self) & ~0x1F); 796 printf(" link="); 797 ehci_dump_link(sc, qh->qh_link, 1); 798 printf("\n"); 799 endp = hc32toh(sc, qh->qh_endp); 800 printf(" endp=0x%08x\n", endp); 801 printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n", 802 EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp), 803 EHCI_QH_GET_ENDPT(endp), EHCI_QH_GET_EPS(endp), 804 EHCI_QH_GET_DTC(endp), EHCI_QH_GET_HRECL(endp)); 805 printf(" mpl=0x%x ctl=%d nrl=%d\n", 806 EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp), 807 EHCI_QH_GET_NRL(endp)); 808 endphub = hc32toh(sc, qh->qh_endphub); 809 printf(" endphub=0x%08x\n", endphub); 810 printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n", 811 EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub), 812 EHCI_QH_GET_HUBA(endphub), EHCI_QH_GET_PORT(endphub), 813 EHCI_QH_GET_MULT(endphub)); 814 printf(" curqtd="); 815 ehci_dump_link(sc, qh->qh_curqtd, 0); 816 printf("\n"); 817 printf("Overlay qTD:\n"); 818 ehci_dump_qtd(sc, (void *)&qh->qh_qtd); 819} 820 821static void 822ehci_dump_sitd(ehci_softc_t *sc, ehci_sitd_t *sitd) 823{ 824 usb_pc_cpu_invalidate(sitd->page_cache); 825 printf("SITD(%p) at 0x%08x\n", sitd, hc32toh(sc, sitd->sitd_self) & ~0x1F); 826 printf(" next=0x%08x\n", hc32toh(sc, sitd->sitd_next)); 827 printf(" portaddr=0x%08x dir=%s addr=%d endpt=0x%x port=0x%x huba=0x%x\n", 828 hc32toh(sc, sitd->sitd_portaddr), 829 (sitd->sitd_portaddr & htohc32(sc, EHCI_SITD_SET_DIR_IN)) 830 ? "in" : "out", 831 EHCI_SITD_GET_ADDR(hc32toh(sc, sitd->sitd_portaddr)), 832 EHCI_SITD_GET_ENDPT(hc32toh(sc, sitd->sitd_portaddr)), 833 EHCI_SITD_GET_PORT(hc32toh(sc, sitd->sitd_portaddr)), 834 EHCI_SITD_GET_HUBA(hc32toh(sc, sitd->sitd_portaddr))); 835 printf(" mask=0x%08x\n", hc32toh(sc, sitd->sitd_mask)); 836 printf(" status=0x%08x <%s> len=0x%x\n", hc32toh(sc, sitd->sitd_status), 837 (sitd->sitd_status & htohc32(sc, EHCI_SITD_ACTIVE)) ? "ACTIVE" : "", 838 EHCI_SITD_GET_LEN(hc32toh(sc, sitd->sitd_status))); 839 printf(" back=0x%08x, bp=0x%08x,0x%08x,0x%08x,0x%08x\n", 840 hc32toh(sc, sitd->sitd_back), 841 hc32toh(sc, sitd->sitd_bp[0]), 842 hc32toh(sc, sitd->sitd_bp[1]), 843 hc32toh(sc, sitd->sitd_bp_hi[0]), 844 hc32toh(sc, sitd->sitd_bp_hi[1])); 845} 846 847static void 848ehci_dump_itd(ehci_softc_t *sc, ehci_itd_t *itd) 849{ 850 usb_pc_cpu_invalidate(itd->page_cache); 851 printf("ITD(%p) at 0x%08x\n", itd, hc32toh(sc, itd->itd_self) & ~0x1F); 852 printf(" next=0x%08x\n", hc32toh(sc, itd->itd_next)); 853 printf(" status[0]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[0]), 854 (itd->itd_status[0] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 855 printf(" status[1]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[1]), 856 (itd->itd_status[1] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 857 printf(" status[2]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[2]), 858 (itd->itd_status[2] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 859 printf(" status[3]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[3]), 860 (itd->itd_status[3] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 861 printf(" status[4]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[4]), 862 (itd->itd_status[4] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 863 printf(" status[5]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[5]), 864 (itd->itd_status[5] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 865 printf(" status[6]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[6]), 866 (itd->itd_status[6] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 867 printf(" status[7]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[7]), 868 (itd->itd_status[7] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 869 printf(" bp[0]=0x%08x\n", hc32toh(sc, itd->itd_bp[0])); 870 printf(" addr=0x%02x; endpt=0x%01x\n", 871 EHCI_ITD_GET_ADDR(hc32toh(sc, itd->itd_bp[0])), 872 EHCI_ITD_GET_ENDPT(hc32toh(sc, itd->itd_bp[0]))); 873 printf(" bp[1]=0x%08x\n", hc32toh(sc, itd->itd_bp[1])); 874 printf(" dir=%s; mpl=0x%02x\n", 875 (hc32toh(sc, itd->itd_bp[1]) & EHCI_ITD_SET_DIR_IN) ? "in" : "out", 876 EHCI_ITD_GET_MPL(hc32toh(sc, itd->itd_bp[1]))); 877 printf(" bp[2..6]=0x%08x,0x%08x,0x%08x,0x%08x,0x%08x\n", 878 hc32toh(sc, itd->itd_bp[2]), 879 hc32toh(sc, itd->itd_bp[3]), 880 hc32toh(sc, itd->itd_bp[4]), 881 hc32toh(sc, itd->itd_bp[5]), 882 hc32toh(sc, itd->itd_bp[6])); 883 printf(" bp_hi=0x%08x,0x%08x,0x%08x,0x%08x,\n" 884 " 0x%08x,0x%08x,0x%08x\n", 885 hc32toh(sc, itd->itd_bp_hi[0]), 886 hc32toh(sc, itd->itd_bp_hi[1]), 887 hc32toh(sc, itd->itd_bp_hi[2]), 888 hc32toh(sc, itd->itd_bp_hi[3]), 889 hc32toh(sc, itd->itd_bp_hi[4]), 890 hc32toh(sc, itd->itd_bp_hi[5]), 891 hc32toh(sc, itd->itd_bp_hi[6])); 892} 893 894static void 895ehci_dump_isoc(ehci_softc_t *sc) 896{ 897 ehci_itd_t *itd; 898 ehci_sitd_t *sitd; 899 uint16_t max = 1000; 900 uint16_t pos; 901 902 pos = (EOREAD4(sc, EHCI_FRINDEX) / 8) & 903 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 904 905 printf("%s: isochronous dump from frame 0x%03x:\n", 906 __FUNCTION__, pos); 907 908 itd = sc->sc_isoc_hs_p_last[pos]; 909 sitd = sc->sc_isoc_fs_p_last[pos]; 910 911 while (itd && max && max--) { 912 ehci_dump_itd(sc, itd); 913 itd = itd->prev; 914 } 915 916 while (sitd && max && max--) { 917 ehci_dump_sitd(sc, sitd); 918 sitd = sitd->prev; 919 } 920} 921 922#endif 923 924static void 925ehci_transfer_intr_enqueue(struct usb_xfer *xfer) 926{ 927 /* check for early completion */ 928 if (ehci_check_transfer(xfer)) { 929 return; 930 } 931 /* put transfer on interrupt queue */ 932 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 933 934 /* start timeout, if any */ 935 if (xfer->timeout != 0) { 936 usbd_transfer_timeout_ms(xfer, &ehci_timeout, xfer->timeout); 937 } 938} 939 940#define EHCI_APPEND_FS_TD(std,last) (last) = _ehci_append_fs_td(std,last) 941static ehci_sitd_t * 942_ehci_append_fs_td(ehci_sitd_t *std, ehci_sitd_t *last) 943{ 944 DPRINTFN(11, "%p to %p\n", std, last); 945 946 /* (sc->sc_bus.mtx) must be locked */ 947 948 std->next = last->next; 949 std->sitd_next = last->sitd_next; 950 951 std->prev = last; 952 953 usb_pc_cpu_flush(std->page_cache); 954 955 /* 956 * the last->next->prev is never followed: std->next->prev = std; 957 */ 958 last->next = std; 959 last->sitd_next = std->sitd_self; 960 961 usb_pc_cpu_flush(last->page_cache); 962 963 return (std); 964} 965 966#define EHCI_APPEND_HS_TD(std,last) (last) = _ehci_append_hs_td(std,last) 967static ehci_itd_t * 968_ehci_append_hs_td(ehci_itd_t *std, ehci_itd_t *last) 969{ 970 DPRINTFN(11, "%p to %p\n", std, last); 971 972 /* (sc->sc_bus.mtx) must be locked */ 973 974 std->next = last->next; 975 std->itd_next = last->itd_next; 976 977 std->prev = last; 978 979 usb_pc_cpu_flush(std->page_cache); 980 981 /* 982 * the last->next->prev is never followed: std->next->prev = std; 983 */ 984 last->next = std; 985 last->itd_next = std->itd_self; 986 987 usb_pc_cpu_flush(last->page_cache); 988 989 return (std); 990} 991 992#define EHCI_APPEND_QH(sqh,last) (last) = _ehci_append_qh(sqh,last) 993static ehci_qh_t * 994_ehci_append_qh(ehci_qh_t *sqh, ehci_qh_t *last) 995{ 996 DPRINTFN(11, "%p to %p\n", sqh, last); 997 998 if (sqh->prev != NULL) { 999 /* should not happen */ 1000 DPRINTFN(0, "QH already linked!\n"); 1001 return (last); 1002 } 1003 /* (sc->sc_bus.mtx) must be locked */ 1004 1005 sqh->next = last->next; 1006 sqh->qh_link = last->qh_link; 1007 1008 sqh->prev = last; 1009 1010 usb_pc_cpu_flush(sqh->page_cache); 1011 1012 /* 1013 * the last->next->prev is never followed: sqh->next->prev = sqh; 1014 */ 1015 1016 last->next = sqh; 1017 last->qh_link = sqh->qh_self; 1018 1019 usb_pc_cpu_flush(last->page_cache); 1020 1021 return (sqh); 1022} 1023 1024#define EHCI_REMOVE_FS_TD(std,last) (last) = _ehci_remove_fs_td(std,last) 1025static ehci_sitd_t * 1026_ehci_remove_fs_td(ehci_sitd_t *std, ehci_sitd_t *last) 1027{ 1028 DPRINTFN(11, "%p from %p\n", std, last); 1029 1030 /* (sc->sc_bus.mtx) must be locked */ 1031 1032 std->prev->next = std->next; 1033 std->prev->sitd_next = std->sitd_next; 1034 1035 usb_pc_cpu_flush(std->prev->page_cache); 1036 1037 if (std->next) { 1038 std->next->prev = std->prev; 1039 usb_pc_cpu_flush(std->next->page_cache); 1040 } 1041 return ((last == std) ? std->prev : last); 1042} 1043 1044#define EHCI_REMOVE_HS_TD(std,last) (last) = _ehci_remove_hs_td(std,last) 1045static ehci_itd_t * 1046_ehci_remove_hs_td(ehci_itd_t *std, ehci_itd_t *last) 1047{ 1048 DPRINTFN(11, "%p from %p\n", std, last); 1049 1050 /* (sc->sc_bus.mtx) must be locked */ 1051 1052 std->prev->next = std->next; 1053 std->prev->itd_next = std->itd_next; 1054 1055 usb_pc_cpu_flush(std->prev->page_cache); 1056 1057 if (std->next) { 1058 std->next->prev = std->prev; 1059 usb_pc_cpu_flush(std->next->page_cache); 1060 } 1061 return ((last == std) ? std->prev : last); 1062} 1063 1064#define EHCI_REMOVE_QH(sqh,last) (last) = _ehci_remove_qh(sqh,last) 1065static ehci_qh_t * 1066_ehci_remove_qh(ehci_qh_t *sqh, ehci_qh_t *last) 1067{ 1068 DPRINTFN(11, "%p from %p\n", sqh, last); 1069 1070 /* (sc->sc_bus.mtx) must be locked */ 1071 1072 /* only remove if not removed from a queue */ 1073 if (sqh->prev) { 1074 1075 sqh->prev->next = sqh->next; 1076 sqh->prev->qh_link = sqh->qh_link; 1077 1078 usb_pc_cpu_flush(sqh->prev->page_cache); 1079 1080 if (sqh->next) { 1081 sqh->next->prev = sqh->prev; 1082 usb_pc_cpu_flush(sqh->next->page_cache); 1083 } 1084 last = ((last == sqh) ? sqh->prev : last); 1085 1086 sqh->prev = 0; 1087 1088 usb_pc_cpu_flush(sqh->page_cache); 1089 } 1090 return (last); 1091} 1092 1093static void 1094ehci_data_toggle_update(struct usb_xfer *xfer, uint16_t actlen, uint16_t xlen) 1095{ 1096 uint16_t rem; 1097 uint8_t dt; 1098 1099 /* count number of full packets */ 1100 dt = (actlen / xfer->max_packet_size) & 1; 1101 1102 /* compute remainder */ 1103 rem = actlen % xfer->max_packet_size; 1104 1105 if (rem > 0) 1106 dt ^= 1; /* short packet at the end */ 1107 else if (actlen != xlen) 1108 dt ^= 1; /* zero length packet at the end */ 1109 else if (xlen == 0) 1110 dt ^= 1; /* zero length transfer */ 1111 1112 xfer->endpoint->toggle_next ^= dt; 1113} 1114 1115static usb_error_t 1116ehci_non_isoc_done_sub(struct usb_xfer *xfer) 1117{ 1118 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1119 ehci_qtd_t *td; 1120 ehci_qtd_t *td_alt_next; 1121 uint32_t status; 1122 uint16_t len; 1123 1124 td = xfer->td_transfer_cache; 1125 td_alt_next = td->alt_next; 1126 1127 if (xfer->aframes != xfer->nframes) { 1128 usbd_xfer_set_frame_len(xfer, xfer->aframes, 0); 1129 } 1130 while (1) { 1131 1132 usb_pc_cpu_invalidate(td->page_cache); 1133 status = hc32toh(sc, td->qtd_status); 1134 1135 len = EHCI_QTD_GET_BYTES(status); 1136 1137 /* 1138 * Verify the status length and 1139 * add the length to "frlengths[]": 1140 */ 1141 if (len > td->len) { 1142 /* should not happen */ 1143 DPRINTF("Invalid status length, " 1144 "0x%04x/0x%04x bytes\n", len, td->len); 1145 status |= EHCI_QTD_HALTED; 1146 } else if (xfer->aframes != xfer->nframes) { 1147 xfer->frlengths[xfer->aframes] += td->len - len; 1148 /* manually update data toggle */ 1149 ehci_data_toggle_update(xfer, td->len - len, td->len); 1150 } 1151 1152 /* Check for last transfer */ 1153 if (((void *)td) == xfer->td_transfer_last) { 1154 td = NULL; 1155 break; 1156 } 1157 /* Check for transfer error */ 1158 if (status & EHCI_QTD_HALTED) { 1159 /* the transfer is finished */ 1160 td = NULL; 1161 break; 1162 } 1163 /* Check for short transfer */ 1164 if (len > 0) { 1165 if (xfer->flags_int.short_frames_ok) { 1166 /* follow alt next */ 1167 td = td->alt_next; 1168 } else { 1169 /* the transfer is finished */ 1170 td = NULL; 1171 } 1172 break; 1173 } 1174 td = td->obj_next; 1175 1176 if (td->alt_next != td_alt_next) { 1177 /* this USB frame is complete */ 1178 break; 1179 } 1180 } 1181 1182 /* update transfer cache */ 1183 1184 xfer->td_transfer_cache = td; 1185 1186#ifdef USB_DEBUG 1187 if (status & EHCI_QTD_STATERRS) { 1188 DPRINTFN(11, "error, addr=%d, endpt=0x%02x, frame=0x%02x" 1189 "status=%s%s%s%s%s%s%s%s\n", 1190 xfer->address, xfer->endpointno, xfer->aframes, 1191 (status & EHCI_QTD_ACTIVE) ? "[ACTIVE]" : "[NOT_ACTIVE]", 1192 (status & EHCI_QTD_HALTED) ? "[HALTED]" : "", 1193 (status & EHCI_QTD_BUFERR) ? "[BUFERR]" : "", 1194 (status & EHCI_QTD_BABBLE) ? "[BABBLE]" : "", 1195 (status & EHCI_QTD_XACTERR) ? "[XACTERR]" : "", 1196 (status & EHCI_QTD_MISSEDMICRO) ? "[MISSED]" : "", 1197 (status & EHCI_QTD_SPLITXSTATE) ? "[SPLIT]" : "", 1198 (status & EHCI_QTD_PINGSTATE) ? "[PING]" : ""); 1199 } 1200#endif 1201 if (status & EHCI_QTD_HALTED) { 1202 if ((xfer->xroot->udev->parent_hs_hub != NULL) || 1203 (xfer->xroot->udev->address != 0)) { 1204 /* try to separate I/O errors from STALL */ 1205 if (EHCI_QTD_GET_CERR(status) == 0) 1206 return (USB_ERR_IOERROR); 1207 } 1208 return (USB_ERR_STALLED); 1209 } 1210 return (USB_ERR_NORMAL_COMPLETION); 1211} 1212 1213static void 1214ehci_non_isoc_done(struct usb_xfer *xfer) 1215{ 1216 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1217 ehci_qh_t *qh; 1218 uint32_t status; 1219 usb_error_t err = 0; 1220 1221 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 1222 xfer, xfer->endpoint); 1223 1224#ifdef USB_DEBUG 1225 if (ehcidebug > 10) { 1226 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1227 1228 ehci_dump_sqtds(sc, xfer->td_transfer_first); 1229 } 1230#endif 1231 1232 /* extract data toggle directly from the QH's overlay area */ 1233 1234 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1235 1236 usb_pc_cpu_invalidate(qh->page_cache); 1237 1238 status = hc32toh(sc, qh->qh_qtd.qtd_status); 1239 1240 /* reset scanner */ 1241 1242 xfer->td_transfer_cache = xfer->td_transfer_first; 1243 1244 if (xfer->flags_int.control_xfr) { 1245 1246 if (xfer->flags_int.control_hdr) { 1247 1248 err = ehci_non_isoc_done_sub(xfer); 1249 } 1250 xfer->aframes = 1; 1251 1252 if (xfer->td_transfer_cache == NULL) { 1253 goto done; 1254 } 1255 } 1256 while (xfer->aframes != xfer->nframes) { 1257 1258 err = ehci_non_isoc_done_sub(xfer); 1259 xfer->aframes++; 1260 1261 if (xfer->td_transfer_cache == NULL) { 1262 goto done; 1263 } 1264 } 1265 1266 if (xfer->flags_int.control_xfr && 1267 !xfer->flags_int.control_act) { 1268 1269 err = ehci_non_isoc_done_sub(xfer); 1270 } 1271done: 1272 ehci_device_done(xfer, err); 1273} 1274 1275/*------------------------------------------------------------------------* 1276 * ehci_check_transfer 1277 * 1278 * Return values: 1279 * 0: USB transfer is not finished 1280 * Else: USB transfer is finished 1281 *------------------------------------------------------------------------*/ 1282static uint8_t 1283ehci_check_transfer(struct usb_xfer *xfer) 1284{ 1285 struct usb_pipe_methods *methods = xfer->endpoint->methods; 1286 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1287 1288 uint32_t status; 1289 1290 DPRINTFN(13, "xfer=%p checking transfer\n", xfer); 1291 1292 if (methods == &ehci_device_isoc_fs_methods) { 1293 ehci_sitd_t *td; 1294 1295 /* isochronous full speed transfer */ 1296 1297 td = xfer->td_transfer_last; 1298 usb_pc_cpu_invalidate(td->page_cache); 1299 status = hc32toh(sc, td->sitd_status); 1300 1301 /* also check if first is complete */ 1302 1303 td = xfer->td_transfer_first; 1304 usb_pc_cpu_invalidate(td->page_cache); 1305 status |= hc32toh(sc, td->sitd_status); 1306 1307 if (!(status & EHCI_SITD_ACTIVE)) { 1308 ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION); 1309 goto transferred; 1310 } 1311 } else if (methods == &ehci_device_isoc_hs_methods) { 1312 ehci_itd_t *td; 1313 1314 /* isochronous high speed transfer */ 1315 1316 /* check last transfer */ 1317 td = xfer->td_transfer_last; 1318 usb_pc_cpu_invalidate(td->page_cache); 1319 status = td->itd_status[0]; 1320 status |= td->itd_status[1]; 1321 status |= td->itd_status[2]; 1322 status |= td->itd_status[3]; 1323 status |= td->itd_status[4]; 1324 status |= td->itd_status[5]; 1325 status |= td->itd_status[6]; 1326 status |= td->itd_status[7]; 1327 1328 /* also check first transfer */ 1329 td = xfer->td_transfer_first; 1330 usb_pc_cpu_invalidate(td->page_cache); 1331 status |= td->itd_status[0]; 1332 status |= td->itd_status[1]; 1333 status |= td->itd_status[2]; 1334 status |= td->itd_status[3]; 1335 status |= td->itd_status[4]; 1336 status |= td->itd_status[5]; 1337 status |= td->itd_status[6]; 1338 status |= td->itd_status[7]; 1339 1340 /* if no transactions are active we continue */ 1341 if (!(status & htohc32(sc, EHCI_ITD_ACTIVE))) { 1342 ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION); 1343 goto transferred; 1344 } 1345 } else { 1346 ehci_qtd_t *td; 1347 ehci_qh_t *qh; 1348 1349 /* non-isochronous transfer */ 1350 1351 /* 1352 * check whether there is an error somewhere in the middle, 1353 * or whether there was a short packet (SPD and not ACTIVE) 1354 */ 1355 td = xfer->td_transfer_cache; 1356 1357 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1358 1359 usb_pc_cpu_invalidate(qh->page_cache); 1360 1361 status = hc32toh(sc, qh->qh_qtd.qtd_status); 1362 if (status & EHCI_QTD_ACTIVE) { 1363 /* transfer is pending */ 1364 goto done; 1365 } 1366 1367 while (1) { 1368 usb_pc_cpu_invalidate(td->page_cache); 1369 status = hc32toh(sc, td->qtd_status); 1370 1371 /* 1372 * Check if there is an active TD which 1373 * indicates that the transfer isn't done. 1374 */ 1375 if (status & EHCI_QTD_ACTIVE) { 1376 /* update cache */ 1377 xfer->td_transfer_cache = td; 1378 goto done; 1379 } 1380 /* 1381 * last transfer descriptor makes the transfer done 1382 */ 1383 if (((void *)td) == xfer->td_transfer_last) { 1384 break; 1385 } 1386 /* 1387 * any kind of error makes the transfer done 1388 */ 1389 if (status & EHCI_QTD_HALTED) { 1390 break; 1391 } 1392 /* 1393 * if there is no alternate next transfer, a short 1394 * packet also makes the transfer done 1395 */ 1396 if (EHCI_QTD_GET_BYTES(status)) { 1397 if (xfer->flags_int.short_frames_ok) { 1398 /* follow alt next */ 1399 if (td->alt_next) { 1400 td = td->alt_next; 1401 continue; 1402 } 1403 } 1404 /* transfer is done */ 1405 break; 1406 } 1407 td = td->obj_next; 1408 } 1409 ehci_non_isoc_done(xfer); 1410 goto transferred; 1411 } 1412 1413done: 1414 DPRINTFN(13, "xfer=%p is still active\n", xfer); 1415 return (0); 1416 1417transferred: 1418 return (1); 1419} 1420 1421static void 1422ehci_pcd_enable(ehci_softc_t *sc) 1423{ 1424 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1425 1426 sc->sc_eintrs |= EHCI_STS_PCD; 1427 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1428 1429 /* acknowledge any PCD interrupt */ 1430 EOWRITE4(sc, EHCI_USBSTS, EHCI_STS_PCD); 1431 1432 ehci_root_intr(sc); 1433} 1434 1435static void 1436ehci_interrupt_poll(ehci_softc_t *sc) 1437{ 1438 struct usb_xfer *xfer; 1439 1440repeat: 1441 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 1442 /* 1443 * check if transfer is transferred 1444 */ 1445 if (ehci_check_transfer(xfer)) { 1446 /* queue has been modified */ 1447 goto repeat; 1448 } 1449 } 1450} 1451 1452/* 1453 * Some EHCI chips from VIA / ATI seem to trigger interrupts before 1454 * writing back the qTD status, or miss signalling occasionally under 1455 * heavy load. If the host machine is too fast, we can miss 1456 * transaction completion - when we scan the active list the 1457 * transaction still seems to be active. This generally exhibits 1458 * itself as a umass stall that never recovers. 1459 * 1460 * We work around this behaviour by setting up this callback after any 1461 * softintr that completes with transactions still pending, giving us 1462 * another chance to check for completion after the writeback has 1463 * taken place. 1464 */ 1465static void 1466ehci_poll_timeout(void *arg) 1467{ 1468 ehci_softc_t *sc = arg; 1469 1470 DPRINTFN(3, "\n"); 1471 ehci_interrupt_poll(sc); 1472} 1473 1474/*------------------------------------------------------------------------* 1475 * ehci_interrupt - EHCI interrupt handler 1476 * 1477 * NOTE: Do not access "sc->sc_bus.bdev" inside the interrupt handler, 1478 * hence the interrupt handler will be setup before "sc->sc_bus.bdev" 1479 * is present ! 1480 *------------------------------------------------------------------------*/ 1481void 1482ehci_interrupt(ehci_softc_t *sc) 1483{ 1484 uint32_t status; 1485 1486 USB_BUS_LOCK(&sc->sc_bus); 1487 1488 DPRINTFN(16, "real interrupt\n"); 1489 1490#ifdef USB_DEBUG 1491 if (ehcidebug > 15) { 1492 ehci_dump_regs(sc); 1493 } 1494#endif 1495 1496 status = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 1497 if (status == 0) { 1498 /* the interrupt was not for us */ 1499 goto done; 1500 } 1501 if (!(status & sc->sc_eintrs)) { 1502 goto done; 1503 } 1504 EOWRITE4(sc, EHCI_USBSTS, status); /* acknowledge */ 1505 1506 status &= sc->sc_eintrs; 1507 1508 if (status & EHCI_STS_HSE) { 1509 printf("%s: unrecoverable error, " 1510 "controller halted\n", __FUNCTION__); 1511#ifdef USB_DEBUG 1512 ehci_dump_regs(sc); 1513 ehci_dump_isoc(sc); 1514#endif 1515 } 1516 if (status & EHCI_STS_PCD) { 1517 /* 1518 * Disable PCD interrupt for now, because it will be 1519 * on until the port has been reset. 1520 */ 1521 sc->sc_eintrs &= ~EHCI_STS_PCD; 1522 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1523 1524 ehci_root_intr(sc); 1525 1526 /* do not allow RHSC interrupts > 1 per second */ 1527 usb_callout_reset(&sc->sc_tmo_pcd, hz, 1528 (void *)&ehci_pcd_enable, sc); 1529 } 1530 status &= ~(EHCI_STS_INT | EHCI_STS_ERRINT | EHCI_STS_PCD | EHCI_STS_IAA); 1531 1532 if (status != 0) { 1533 /* block unprocessed interrupts */ 1534 sc->sc_eintrs &= ~status; 1535 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1536 printf("%s: blocking interrupts 0x%x\n", __FUNCTION__, status); 1537 } 1538 /* poll all the USB transfers */ 1539 ehci_interrupt_poll(sc); 1540 1541 if (sc->sc_flags & EHCI_SCFLG_LOSTINTRBUG) { 1542 usb_callout_reset(&sc->sc_tmo_poll, hz / 128, 1543 (void *)&ehci_poll_timeout, sc); 1544 } 1545 1546done: 1547 USB_BUS_UNLOCK(&sc->sc_bus); 1548} 1549 1550/* 1551 * called when a request does not complete 1552 */ 1553static void 1554ehci_timeout(void *arg) 1555{ 1556 struct usb_xfer *xfer = arg; 1557 1558 DPRINTF("xfer=%p\n", xfer); 1559 1560 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1561 1562 /* transfer is transferred */ 1563 ehci_device_done(xfer, USB_ERR_TIMEOUT); 1564} 1565 1566static void 1567ehci_do_poll(struct usb_bus *bus) 1568{ 1569 ehci_softc_t *sc = EHCI_BUS2SC(bus); 1570 1571 USB_BUS_LOCK(&sc->sc_bus); 1572 ehci_interrupt_poll(sc); 1573 USB_BUS_UNLOCK(&sc->sc_bus); 1574} 1575 1576static void 1577ehci_setup_standard_chain_sub(struct ehci_std_temp *temp) 1578{ 1579 struct usb_page_search buf_res; 1580 ehci_qtd_t *td; 1581 ehci_qtd_t *td_next; 1582 ehci_qtd_t *td_alt_next; 1583 uint32_t buf_offset; 1584 uint32_t average; 1585 uint32_t len_old; 1586 uint32_t terminate; 1587 uint32_t qtd_altnext; 1588 uint8_t shortpkt_old; 1589 uint8_t precompute; 1590 1591 terminate = temp->sc->sc_terminate_self; 1592 qtd_altnext = temp->sc->sc_terminate_self; 1593 td_alt_next = NULL; 1594 buf_offset = 0; 1595 shortpkt_old = temp->shortpkt; 1596 len_old = temp->len; 1597 precompute = 1; 1598 1599restart: 1600 1601 td = temp->td; 1602 td_next = temp->td_next; 1603 1604 while (1) { 1605 1606 if (temp->len == 0) { 1607 1608 if (temp->shortpkt) { 1609 break; 1610 } 1611 /* send a Zero Length Packet, ZLP, last */ 1612 1613 temp->shortpkt = 1; 1614 average = 0; 1615 1616 } else { 1617 1618 average = temp->average; 1619 1620 if (temp->len < average) { 1621 if (temp->len % temp->max_frame_size) { 1622 temp->shortpkt = 1; 1623 } 1624 average = temp->len; 1625 } 1626 } 1627 1628 if (td_next == NULL) { 1629 panic("%s: out of EHCI transfer descriptors!", __FUNCTION__); 1630 } 1631 /* get next TD */ 1632 1633 td = td_next; 1634 td_next = td->obj_next; 1635 1636 /* check if we are pre-computing */ 1637 1638 if (precompute) { 1639 1640 /* update remaining length */ 1641 1642 temp->len -= average; 1643 1644 continue; 1645 } 1646 /* fill out current TD */ 1647 1648 td->qtd_status = 1649 temp->qtd_status | 1650 htohc32(temp->sc, EHCI_QTD_IOC | 1651 EHCI_QTD_SET_BYTES(average)); 1652 1653 if (average == 0) { 1654 1655 if (temp->auto_data_toggle == 0) { 1656 1657 /* update data toggle, ZLP case */ 1658 1659 temp->qtd_status ^= 1660 htohc32(temp->sc, EHCI_QTD_TOGGLE_MASK); 1661 } 1662 td->len = 0; 1663 1664 /* properly reset reserved fields */ 1665 td->qtd_buffer[0] = 0; 1666 td->qtd_buffer[1] = 0; 1667 td->qtd_buffer[2] = 0; 1668 td->qtd_buffer[3] = 0; 1669 td->qtd_buffer[4] = 0; 1670 td->qtd_buffer_hi[0] = 0; 1671 td->qtd_buffer_hi[1] = 0; 1672 td->qtd_buffer_hi[2] = 0; 1673 td->qtd_buffer_hi[3] = 0; 1674 td->qtd_buffer_hi[4] = 0; 1675 } else { 1676 1677 uint8_t x; 1678 1679 if (temp->auto_data_toggle == 0) { 1680 1681 /* update data toggle */ 1682 1683 if (((average + temp->max_frame_size - 1) / 1684 temp->max_frame_size) & 1) { 1685 temp->qtd_status ^= 1686 htohc32(temp->sc, EHCI_QTD_TOGGLE_MASK); 1687 } 1688 } 1689 td->len = average; 1690 1691 /* update remaining length */ 1692 1693 temp->len -= average; 1694 1695 /* fill out buffer pointers */ 1696 1697 usbd_get_page(temp->pc, buf_offset, &buf_res); 1698 td->qtd_buffer[0] = 1699 htohc32(temp->sc, buf_res.physaddr); 1700 td->qtd_buffer_hi[0] = 0; 1701 1702 x = 1; 1703 1704 while (average > EHCI_PAGE_SIZE) { 1705 average -= EHCI_PAGE_SIZE; 1706 buf_offset += EHCI_PAGE_SIZE; 1707 usbd_get_page(temp->pc, buf_offset, &buf_res); 1708 td->qtd_buffer[x] = 1709 htohc32(temp->sc, 1710 buf_res.physaddr & (~0xFFF)); 1711 td->qtd_buffer_hi[x] = 0; 1712 x++; 1713 } 1714 1715 /* 1716 * NOTE: The "average" variable is never zero after 1717 * exiting the loop above ! 1718 * 1719 * NOTE: We have to subtract one from the offset to 1720 * ensure that we are computing the physical address 1721 * of a valid page ! 1722 */ 1723 buf_offset += average; 1724 usbd_get_page(temp->pc, buf_offset - 1, &buf_res); 1725 td->qtd_buffer[x] = 1726 htohc32(temp->sc, 1727 buf_res.physaddr & (~0xFFF)); 1728 td->qtd_buffer_hi[x] = 0; 1729 1730 /* properly reset reserved fields */ 1731 while (++x < EHCI_QTD_NBUFFERS) { 1732 td->qtd_buffer[x] = 0; 1733 td->qtd_buffer_hi[x] = 0; 1734 } 1735 } 1736 1737 if (td_next) { 1738 /* link the current TD with the next one */ 1739 td->qtd_next = td_next->qtd_self; 1740 } 1741 td->qtd_altnext = qtd_altnext; 1742 td->alt_next = td_alt_next; 1743 1744 usb_pc_cpu_flush(td->page_cache); 1745 } 1746 1747 if (precompute) { 1748 precompute = 0; 1749 1750 /* setup alt next pointer, if any */ 1751 if (temp->last_frame) { 1752 td_alt_next = NULL; 1753 qtd_altnext = terminate; 1754 } else { 1755 /* we use this field internally */ 1756 td_alt_next = td_next; 1757 if (temp->setup_alt_next) { 1758 qtd_altnext = td_next->qtd_self; 1759 } else { 1760 qtd_altnext = terminate; 1761 } 1762 } 1763 1764 /* restore */ 1765 temp->shortpkt = shortpkt_old; 1766 temp->len = len_old; 1767 goto restart; 1768 } 1769 temp->td = td; 1770 temp->td_next = td_next; 1771} 1772 1773static void 1774ehci_setup_standard_chain(struct usb_xfer *xfer, ehci_qh_t **qh_last) 1775{ 1776 struct ehci_std_temp temp; 1777 struct usb_pipe_methods *methods; 1778 ehci_qh_t *qh; 1779 ehci_qtd_t *td; 1780 uint32_t qh_endp; 1781 uint32_t qh_endphub; 1782 uint32_t x; 1783 1784 DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n", 1785 xfer->address, UE_GET_ADDR(xfer->endpointno), 1786 xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); 1787 1788 temp.average = xfer->max_hc_frame_size; 1789 temp.max_frame_size = xfer->max_frame_size; 1790 temp.sc = EHCI_BUS2SC(xfer->xroot->bus); 1791 1792 /* toggle the DMA set we are using */ 1793 xfer->flags_int.curr_dma_set ^= 1; 1794 1795 /* get next DMA set */ 1796 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 1797 1798 xfer->td_transfer_first = td; 1799 xfer->td_transfer_cache = td; 1800 1801 temp.td = NULL; 1802 temp.td_next = td; 1803 temp.qtd_status = 0; 1804 temp.last_frame = 0; 1805 temp.setup_alt_next = xfer->flags_int.short_frames_ok; 1806 1807 if (xfer->flags_int.control_xfr) { 1808 if (xfer->endpoint->toggle_next) { 1809 /* DATA1 is next */ 1810 temp.qtd_status |= 1811 htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1)); 1812 } 1813 temp.auto_data_toggle = 0; 1814 } else { 1815 temp.auto_data_toggle = 1; 1816 } 1817 1818 if ((xfer->xroot->udev->parent_hs_hub != NULL) || 1819 (xfer->xroot->udev->address != 0)) { 1820 /* max 3 retries */ 1821 temp.qtd_status |= 1822 htohc32(temp.sc, EHCI_QTD_SET_CERR(3)); 1823 } 1824 /* check if we should prepend a setup message */ 1825 1826 if (xfer->flags_int.control_xfr) { 1827 if (xfer->flags_int.control_hdr) { 1828 1829 xfer->endpoint->toggle_next = 0; 1830 1831 temp.qtd_status &= 1832 htohc32(temp.sc, EHCI_QTD_SET_CERR(3)); 1833 temp.qtd_status |= htohc32(temp.sc, 1834 EHCI_QTD_ACTIVE | 1835 EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) | 1836 EHCI_QTD_SET_TOGGLE(0)); 1837 1838 temp.len = xfer->frlengths[0]; 1839 temp.pc = xfer->frbuffers + 0; 1840 temp.shortpkt = temp.len ? 1 : 0; 1841 /* check for last frame */ 1842 if (xfer->nframes == 1) { 1843 /* no STATUS stage yet, SETUP is last */ 1844 if (xfer->flags_int.control_act) { 1845 temp.last_frame = 1; 1846 temp.setup_alt_next = 0; 1847 } 1848 } 1849 ehci_setup_standard_chain_sub(&temp); 1850 } 1851 x = 1; 1852 } else { 1853 x = 0; 1854 } 1855 1856 while (x != xfer->nframes) { 1857 1858 /* DATA0 / DATA1 message */ 1859 1860 temp.len = xfer->frlengths[x]; 1861 temp.pc = xfer->frbuffers + x; 1862 1863 x++; 1864 1865 if (x == xfer->nframes) { 1866 if (xfer->flags_int.control_xfr) { 1867 /* no STATUS stage yet, DATA is last */ 1868 if (xfer->flags_int.control_act) { 1869 temp.last_frame = 1; 1870 temp.setup_alt_next = 0; 1871 } 1872 } else { 1873 temp.last_frame = 1; 1874 temp.setup_alt_next = 0; 1875 } 1876 } 1877 /* keep previous data toggle and error count */ 1878 1879 temp.qtd_status &= 1880 htohc32(temp.sc, EHCI_QTD_SET_CERR(3) | 1881 EHCI_QTD_SET_TOGGLE(1)); 1882 1883 if (temp.len == 0) { 1884 1885 /* make sure that we send an USB packet */ 1886 1887 temp.shortpkt = 0; 1888 1889 } else { 1890 1891 /* regular data transfer */ 1892 1893 temp.shortpkt = (xfer->flags.force_short_xfer) ? 0 : 1; 1894 } 1895 1896 /* set endpoint direction */ 1897 1898 temp.qtd_status |= 1899 (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) ? 1900 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1901 EHCI_QTD_SET_PID(EHCI_QTD_PID_IN)) : 1902 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1903 EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT)); 1904 1905 ehci_setup_standard_chain_sub(&temp); 1906 } 1907 1908 /* check if we should append a status stage */ 1909 1910 if (xfer->flags_int.control_xfr && 1911 !xfer->flags_int.control_act) { 1912 1913 /* 1914 * Send a DATA1 message and invert the current endpoint 1915 * direction. 1916 */ 1917 1918 temp.qtd_status &= htohc32(temp.sc, EHCI_QTD_SET_CERR(3) | 1919 EHCI_QTD_SET_TOGGLE(1)); 1920 temp.qtd_status |= 1921 (UE_GET_DIR(xfer->endpointno) == UE_DIR_OUT) ? 1922 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1923 EHCI_QTD_SET_PID(EHCI_QTD_PID_IN) | 1924 EHCI_QTD_SET_TOGGLE(1)) : 1925 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1926 EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT) | 1927 EHCI_QTD_SET_TOGGLE(1)); 1928 1929 temp.len = 0; 1930 temp.pc = NULL; 1931 temp.shortpkt = 0; 1932 temp.last_frame = 1; 1933 temp.setup_alt_next = 0; 1934 1935 ehci_setup_standard_chain_sub(&temp); 1936 } 1937 td = temp.td; 1938 1939 /* the last TD terminates the transfer: */ 1940 td->qtd_next = htohc32(temp.sc, EHCI_LINK_TERMINATE); 1941 td->qtd_altnext = htohc32(temp.sc, EHCI_LINK_TERMINATE); 1942 1943 usb_pc_cpu_flush(td->page_cache); 1944 1945 /* must have at least one frame! */ 1946 1947 xfer->td_transfer_last = td; 1948 1949#ifdef USB_DEBUG 1950 if (ehcidebug > 8) { 1951 DPRINTF("nexttog=%d; data before transfer:\n", 1952 xfer->endpoint->toggle_next); 1953 ehci_dump_sqtds(temp.sc, 1954 xfer->td_transfer_first); 1955 } 1956#endif 1957 1958 methods = xfer->endpoint->methods; 1959 1960 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1961 1962 /* the "qh_link" field is filled when the QH is added */ 1963 1964 qh_endp = 1965 (EHCI_QH_SET_ADDR(xfer->address) | 1966 EHCI_QH_SET_ENDPT(UE_GET_ADDR(xfer->endpointno)) | 1967 EHCI_QH_SET_MPL(xfer->max_packet_size)); 1968 1969 if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_HIGH) { 1970 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH); 1971 if (methods != &ehci_device_intr_methods) 1972 qh_endp |= EHCI_QH_SET_NRL(8); 1973 } else { 1974 1975 if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_FULL) { 1976 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_FULL); 1977 } else { 1978 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_LOW); 1979 } 1980 1981 if (methods == &ehci_device_ctrl_methods) { 1982 qh_endp |= EHCI_QH_CTL; 1983 } 1984 if (methods != &ehci_device_intr_methods) { 1985 /* Only try one time per microframe! */ 1986 qh_endp |= EHCI_QH_SET_NRL(1); 1987 } 1988 } 1989 1990 if (temp.auto_data_toggle == 0) { 1991 /* software computes the data toggle */ 1992 qh_endp |= EHCI_QH_DTC; 1993 } 1994 1995 qh->qh_endp = htohc32(temp.sc, qh_endp); 1996 1997 qh_endphub = 1998 (EHCI_QH_SET_MULT(xfer->max_packet_count & 3) | 1999 EHCI_QH_SET_CMASK(xfer->endpoint->usb_cmask) | 2000 EHCI_QH_SET_SMASK(xfer->endpoint->usb_smask) | 2001 EHCI_QH_SET_HUBA(xfer->xroot->udev->hs_hub_addr) | 2002 EHCI_QH_SET_PORT(xfer->xroot->udev->hs_port_no)); 2003 2004 qh->qh_endphub = htohc32(temp.sc, qh_endphub); 2005 qh->qh_curqtd = 0; 2006 2007 /* fill the overlay qTD */ 2008 2009 if (temp.auto_data_toggle && xfer->endpoint->toggle_next) { 2010 /* DATA1 is next */ 2011 qh->qh_qtd.qtd_status = htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1)); 2012 } else { 2013 qh->qh_qtd.qtd_status = 0; 2014 } 2015 2016 td = xfer->td_transfer_first; 2017 2018 qh->qh_qtd.qtd_next = td->qtd_self; 2019 qh->qh_qtd.qtd_altnext = 2020 htohc32(temp.sc, EHCI_LINK_TERMINATE); 2021 2022 /* properly reset reserved fields */ 2023 qh->qh_qtd.qtd_buffer[0] = 0; 2024 qh->qh_qtd.qtd_buffer[1] = 0; 2025 qh->qh_qtd.qtd_buffer[2] = 0; 2026 qh->qh_qtd.qtd_buffer[3] = 0; 2027 qh->qh_qtd.qtd_buffer[4] = 0; 2028 qh->qh_qtd.qtd_buffer_hi[0] = 0; 2029 qh->qh_qtd.qtd_buffer_hi[1] = 0; 2030 qh->qh_qtd.qtd_buffer_hi[2] = 0; 2031 qh->qh_qtd.qtd_buffer_hi[3] = 0; 2032 qh->qh_qtd.qtd_buffer_hi[4] = 0; 2033 2034 usb_pc_cpu_flush(qh->page_cache); 2035 2036 if (xfer->xroot->udev->flags.self_suspended == 0) { 2037 EHCI_APPEND_QH(qh, *qh_last); 2038 } 2039} 2040 2041static void 2042ehci_root_intr(ehci_softc_t *sc) 2043{ 2044 uint16_t i; 2045 uint16_t m; 2046 2047 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 2048 2049 /* clear any old interrupt data */ 2050 memset(sc->sc_hub_idata, 0, sizeof(sc->sc_hub_idata)); 2051 2052 /* set bits */ 2053 m = (sc->sc_noport + 1); 2054 if (m > (8 * sizeof(sc->sc_hub_idata))) { 2055 m = (8 * sizeof(sc->sc_hub_idata)); 2056 } 2057 for (i = 1; i < m; i++) { 2058 /* pick out CHANGE bits from the status register */ 2059 if (EOREAD4(sc, EHCI_PORTSC(i)) & EHCI_PS_CLEAR) { 2060 sc->sc_hub_idata[i / 8] |= 1 << (i % 8); 2061 DPRINTF("port %d changed\n", i); 2062 } 2063 } 2064 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 2065 sizeof(sc->sc_hub_idata)); 2066} 2067 2068static void 2069ehci_isoc_fs_done(ehci_softc_t *sc, struct usb_xfer *xfer) 2070{ 2071 uint32_t nframes = xfer->nframes; 2072 uint32_t status; 2073 uint32_t *plen = xfer->frlengths; 2074 uint16_t len = 0; 2075 ehci_sitd_t *td = xfer->td_transfer_first; 2076 ehci_sitd_t **pp_last = &sc->sc_isoc_fs_p_last[xfer->qh_pos]; 2077 2078 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 2079 xfer, xfer->endpoint); 2080 2081 while (nframes--) { 2082 if (td == NULL) { 2083 panic("%s:%d: out of TD's\n", 2084 __FUNCTION__, __LINE__); 2085 } 2086 if (pp_last >= &sc->sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2087 pp_last = &sc->sc_isoc_fs_p_last[0]; 2088 } 2089#ifdef USB_DEBUG 2090 if (ehcidebug > 15) { 2091 DPRINTF("isoc FS-TD\n"); 2092 ehci_dump_sitd(sc, td); 2093 } 2094#endif 2095 usb_pc_cpu_invalidate(td->page_cache); 2096 status = hc32toh(sc, td->sitd_status); 2097 2098 len = EHCI_SITD_GET_LEN(status); 2099 2100 DPRINTFN(2, "status=0x%08x, rem=%u\n", status, len); 2101 2102 if (*plen >= len) { 2103 len = *plen - len; 2104 } else { 2105 len = 0; 2106 } 2107 2108 *plen = len; 2109 2110 /* remove FS-TD from schedule */ 2111 EHCI_REMOVE_FS_TD(td, *pp_last); 2112 2113 pp_last++; 2114 plen++; 2115 td = td->obj_next; 2116 } 2117 2118 xfer->aframes = xfer->nframes; 2119} 2120 2121static void 2122ehci_isoc_hs_done(ehci_softc_t *sc, struct usb_xfer *xfer) 2123{ 2124 uint32_t nframes = xfer->nframes; 2125 uint32_t status; 2126 uint32_t *plen = xfer->frlengths; 2127 uint16_t len = 0; 2128 uint8_t td_no = 0; 2129 ehci_itd_t *td = xfer->td_transfer_first; 2130 ehci_itd_t **pp_last = &sc->sc_isoc_hs_p_last[xfer->qh_pos]; 2131 2132 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 2133 xfer, xfer->endpoint); 2134 2135 while (nframes) { 2136 if (td == NULL) { 2137 panic("%s:%d: out of TD's\n", 2138 __FUNCTION__, __LINE__); 2139 } 2140 if (pp_last >= &sc->sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2141 pp_last = &sc->sc_isoc_hs_p_last[0]; 2142 } 2143#ifdef USB_DEBUG 2144 if (ehcidebug > 15) { 2145 DPRINTF("isoc HS-TD\n"); 2146 ehci_dump_itd(sc, td); 2147 } 2148#endif 2149 2150 usb_pc_cpu_invalidate(td->page_cache); 2151 status = hc32toh(sc, td->itd_status[td_no]); 2152 2153 len = EHCI_ITD_GET_LEN(status); 2154 2155 DPRINTFN(2, "status=0x%08x, len=%u\n", status, len); 2156 2157 if (xfer->endpoint->usb_smask & (1 << td_no)) { 2158 2159 if (*plen >= len) { 2160 /* 2161 * The length is valid. NOTE: The 2162 * complete length is written back 2163 * into the status field, and not the 2164 * remainder like with other transfer 2165 * descriptor types. 2166 */ 2167 } else { 2168 /* Invalid length - truncate */ 2169 len = 0; 2170 } 2171 2172 *plen = len; 2173 plen++; 2174 nframes--; 2175 } 2176 2177 td_no++; 2178 2179 if ((td_no == 8) || (nframes == 0)) { 2180 /* remove HS-TD from schedule */ 2181 EHCI_REMOVE_HS_TD(td, *pp_last); 2182 pp_last++; 2183 2184 td_no = 0; 2185 td = td->obj_next; 2186 } 2187 } 2188 xfer->aframes = xfer->nframes; 2189} 2190 2191/* NOTE: "done" can be run two times in a row, 2192 * from close and from interrupt 2193 */ 2194static void 2195ehci_device_done(struct usb_xfer *xfer, usb_error_t error) 2196{ 2197 struct usb_pipe_methods *methods = xfer->endpoint->methods; 2198 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2199 2200 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 2201 2202 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n", 2203 xfer, xfer->endpoint, error); 2204 2205 if ((methods == &ehci_device_bulk_methods) || 2206 (methods == &ehci_device_ctrl_methods)) { 2207#ifdef USB_DEBUG 2208 if (ehcidebug > 8) { 2209 DPRINTF("nexttog=%d; data after transfer:\n", 2210 xfer->endpoint->toggle_next); 2211 ehci_dump_sqtds(sc, 2212 xfer->td_transfer_first); 2213 } 2214#endif 2215 2216 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 2217 sc->sc_async_p_last); 2218 } 2219 if (methods == &ehci_device_intr_methods) { 2220 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 2221 sc->sc_intr_p_last[xfer->qh_pos]); 2222 } 2223 /* 2224 * Only finish isochronous transfers once which will update 2225 * "xfer->frlengths". 2226 */ 2227 if (xfer->td_transfer_first && 2228 xfer->td_transfer_last) { 2229 if (methods == &ehci_device_isoc_fs_methods) { 2230 ehci_isoc_fs_done(sc, xfer); 2231 } 2232 if (methods == &ehci_device_isoc_hs_methods) { 2233 ehci_isoc_hs_done(sc, xfer); 2234 } 2235 xfer->td_transfer_first = NULL; 2236 xfer->td_transfer_last = NULL; 2237 } 2238 /* dequeue transfer and start next transfer */ 2239 usbd_transfer_done(xfer, error); 2240} 2241 2242/*------------------------------------------------------------------------* 2243 * ehci bulk support 2244 *------------------------------------------------------------------------*/ 2245static void 2246ehci_device_bulk_open(struct usb_xfer *xfer) 2247{ 2248 return; 2249} 2250 2251static void 2252ehci_device_bulk_close(struct usb_xfer *xfer) 2253{ 2254 ehci_device_done(xfer, USB_ERR_CANCELLED); 2255} 2256 2257static void 2258ehci_device_bulk_enter(struct usb_xfer *xfer) 2259{ 2260 return; 2261} 2262 2263static void 2264ehci_doorbell_async(struct ehci_softc *sc) 2265{ 2266 uint32_t temp; 2267 2268 /* 2269 * XXX Performance quirk: Some Host Controllers have a too low 2270 * interrupt rate. Issue an IAAD to stimulate the Host 2271 * Controller after queueing the BULK transfer. 2272 * 2273 * XXX Force the host controller to refresh any QH caches. 2274 */ 2275 temp = EOREAD4(sc, EHCI_USBCMD); 2276 if (!(temp & EHCI_CMD_IAAD)) 2277 EOWRITE4(sc, EHCI_USBCMD, temp | EHCI_CMD_IAAD); 2278} 2279 2280static void 2281ehci_device_bulk_start(struct usb_xfer *xfer) 2282{ 2283 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2284 2285 /* setup TD's and QH */ 2286 ehci_setup_standard_chain(xfer, &sc->sc_async_p_last); 2287 2288 /* put transfer on interrupt queue */ 2289 ehci_transfer_intr_enqueue(xfer); 2290 2291 /* 2292 * XXX Certain nVidia chipsets choke when using the IAAD 2293 * feature too frequently. 2294 */ 2295 if (sc->sc_flags & EHCI_SCFLG_IAADBUG) 2296 return; 2297 2298 ehci_doorbell_async(sc); 2299} 2300 2301struct usb_pipe_methods ehci_device_bulk_methods = 2302{ 2303 .open = ehci_device_bulk_open, 2304 .close = ehci_device_bulk_close, 2305 .enter = ehci_device_bulk_enter, 2306 .start = ehci_device_bulk_start, 2307}; 2308 2309/*------------------------------------------------------------------------* 2310 * ehci control support 2311 *------------------------------------------------------------------------*/ 2312static void 2313ehci_device_ctrl_open(struct usb_xfer *xfer) 2314{ 2315 return; 2316} 2317 2318static void 2319ehci_device_ctrl_close(struct usb_xfer *xfer) 2320{ 2321 ehci_device_done(xfer, USB_ERR_CANCELLED); 2322} 2323 2324static void 2325ehci_device_ctrl_enter(struct usb_xfer *xfer) 2326{ 2327 return; 2328} 2329 2330static void 2331ehci_device_ctrl_start(struct usb_xfer *xfer) 2332{ 2333 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2334 2335 /* setup TD's and QH */ 2336 ehci_setup_standard_chain(xfer, &sc->sc_async_p_last); 2337 2338 /* put transfer on interrupt queue */ 2339 ehci_transfer_intr_enqueue(xfer); 2340} 2341 2342struct usb_pipe_methods ehci_device_ctrl_methods = 2343{ 2344 .open = ehci_device_ctrl_open, 2345 .close = ehci_device_ctrl_close, 2346 .enter = ehci_device_ctrl_enter, 2347 .start = ehci_device_ctrl_start, 2348}; 2349 2350/*------------------------------------------------------------------------* 2351 * ehci interrupt support 2352 *------------------------------------------------------------------------*/ 2353static void 2354ehci_device_intr_open(struct usb_xfer *xfer) 2355{ 2356 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2357 uint16_t best; 2358 uint16_t bit; 2359 uint16_t x; 2360 2361 usb_hs_bandwidth_alloc(xfer); 2362 2363 /* 2364 * Find the best QH position corresponding to the given interval: 2365 */ 2366 2367 best = 0; 2368 bit = EHCI_VIRTUAL_FRAMELIST_COUNT / 2; 2369 while (bit) { 2370 if (xfer->interval >= bit) { 2371 x = bit; 2372 best = bit; 2373 while (x & bit) { 2374 if (sc->sc_intr_stat[x] < 2375 sc->sc_intr_stat[best]) { 2376 best = x; 2377 } 2378 x++; 2379 } 2380 break; 2381 } 2382 bit >>= 1; 2383 } 2384 2385 sc->sc_intr_stat[best]++; 2386 xfer->qh_pos = best; 2387 2388 DPRINTFN(3, "best=%d interval=%d\n", 2389 best, xfer->interval); 2390} 2391 2392static void 2393ehci_device_intr_close(struct usb_xfer *xfer) 2394{ 2395 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2396 2397 sc->sc_intr_stat[xfer->qh_pos]--; 2398 2399 ehci_device_done(xfer, USB_ERR_CANCELLED); 2400 2401 /* bandwidth must be freed after device done */ 2402 usb_hs_bandwidth_free(xfer); 2403} 2404 2405static void 2406ehci_device_intr_enter(struct usb_xfer *xfer) 2407{ 2408 return; 2409} 2410 2411static void 2412ehci_device_intr_start(struct usb_xfer *xfer) 2413{ 2414 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2415 2416 /* setup TD's and QH */ 2417 ehci_setup_standard_chain(xfer, &sc->sc_intr_p_last[xfer->qh_pos]); 2418 2419 /* put transfer on interrupt queue */ 2420 ehci_transfer_intr_enqueue(xfer); 2421} 2422 2423struct usb_pipe_methods ehci_device_intr_methods = 2424{ 2425 .open = ehci_device_intr_open, 2426 .close = ehci_device_intr_close, 2427 .enter = ehci_device_intr_enter, 2428 .start = ehci_device_intr_start, 2429}; 2430 2431/*------------------------------------------------------------------------* 2432 * ehci full speed isochronous support 2433 *------------------------------------------------------------------------*/ 2434static void 2435ehci_device_isoc_fs_open(struct usb_xfer *xfer) 2436{ 2437 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2438 ehci_sitd_t *td; 2439 uint32_t sitd_portaddr; 2440 uint8_t ds; 2441 2442 sitd_portaddr = 2443 EHCI_SITD_SET_ADDR(xfer->address) | 2444 EHCI_SITD_SET_ENDPT(UE_GET_ADDR(xfer->endpointno)) | 2445 EHCI_SITD_SET_HUBA(xfer->xroot->udev->hs_hub_addr) | 2446 EHCI_SITD_SET_PORT(xfer->xroot->udev->hs_port_no); 2447 2448 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) 2449 sitd_portaddr |= EHCI_SITD_SET_DIR_IN; 2450 2451 sitd_portaddr = htohc32(sc, sitd_portaddr); 2452 2453 /* initialize all TD's */ 2454 2455 for (ds = 0; ds != 2; ds++) { 2456 2457 for (td = xfer->td_start[ds]; td; td = td->obj_next) { 2458 2459 td->sitd_portaddr = sitd_portaddr; 2460 2461 /* 2462 * TODO: make some kind of automatic 2463 * SMASK/CMASK selection based on micro-frame 2464 * usage 2465 * 2466 * micro-frame usage (8 microframes per 1ms) 2467 */ 2468 td->sitd_back = htohc32(sc, EHCI_LINK_TERMINATE); 2469 2470 usb_pc_cpu_flush(td->page_cache); 2471 } 2472 } 2473} 2474 2475static void 2476ehci_device_isoc_fs_close(struct usb_xfer *xfer) 2477{ 2478 ehci_device_done(xfer, USB_ERR_CANCELLED); 2479} 2480 2481static void 2482ehci_device_isoc_fs_enter(struct usb_xfer *xfer) 2483{ 2484 struct usb_page_search buf_res; 2485 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2486 ehci_sitd_t *td; 2487 ehci_sitd_t *td_last = NULL; 2488 ehci_sitd_t **pp_last; 2489 uint32_t *plen; 2490 uint32_t buf_offset; 2491 uint32_t nframes; 2492 uint32_t temp; 2493 uint32_t sitd_mask; 2494 uint16_t tlen; 2495 uint8_t sa; 2496 uint8_t sb; 2497 2498#ifdef USB_DEBUG 2499 uint8_t once = 1; 2500 2501#endif 2502 2503 DPRINTFN(6, "xfer=%p next=%d nframes=%d\n", 2504 xfer, xfer->endpoint->isoc_next, xfer->nframes); 2505 2506 /* get the current frame index */ 2507 2508 nframes = EOREAD4(sc, EHCI_FRINDEX) / 8; 2509 2510 /* 2511 * check if the frame index is within the window where the frames 2512 * will be inserted 2513 */ 2514 buf_offset = (nframes - xfer->endpoint->isoc_next) & 2515 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2516 2517 if ((xfer->endpoint->is_synced == 0) || 2518 (buf_offset < xfer->nframes)) { 2519 /* 2520 * If there is data underflow or the pipe queue is empty we 2521 * schedule the transfer a few frames ahead of the current 2522 * frame position. Else two isochronous transfers might 2523 * overlap. 2524 */ 2525 xfer->endpoint->isoc_next = (nframes + 3) & 2526 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2527 xfer->endpoint->is_synced = 1; 2528 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 2529 } 2530 /* 2531 * compute how many milliseconds the insertion is ahead of the 2532 * current frame position: 2533 */ 2534 buf_offset = (xfer->endpoint->isoc_next - nframes) & 2535 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2536 2537 /* 2538 * pre-compute when the isochronous transfer will be finished: 2539 */ 2540 xfer->isoc_time_complete = 2541 usb_isoc_time_expand(&sc->sc_bus, nframes) + 2542 buf_offset + xfer->nframes; 2543 2544 /* get the real number of frames */ 2545 2546 nframes = xfer->nframes; 2547 2548 buf_offset = 0; 2549 2550 plen = xfer->frlengths; 2551 2552 /* toggle the DMA set we are using */ 2553 xfer->flags_int.curr_dma_set ^= 1; 2554 2555 /* get next DMA set */ 2556 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 2557 xfer->td_transfer_first = td; 2558 2559 pp_last = &sc->sc_isoc_fs_p_last[xfer->endpoint->isoc_next]; 2560 2561 /* store starting position */ 2562 2563 xfer->qh_pos = xfer->endpoint->isoc_next; 2564 2565 while (nframes--) { 2566 if (td == NULL) { 2567 panic("%s:%d: out of TD's\n", 2568 __FUNCTION__, __LINE__); 2569 } 2570 if (pp_last >= &sc->sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) 2571 pp_last = &sc->sc_isoc_fs_p_last[0]; 2572 2573 /* reuse sitd_portaddr and sitd_back from last transfer */ 2574 2575 if (*plen > xfer->max_frame_size) { 2576#ifdef USB_DEBUG 2577 if (once) { 2578 once = 0; 2579 printf("%s: frame length(%d) exceeds %d " 2580 "bytes (frame truncated)\n", 2581 __FUNCTION__, *plen, 2582 xfer->max_frame_size); 2583 } 2584#endif 2585 *plen = xfer->max_frame_size; 2586 } 2587 2588 /* allocate a slot */ 2589 2590 sa = usbd_fs_isoc_schedule_alloc_slot(xfer, 2591 xfer->isoc_time_complete - nframes - 1); 2592 2593 if (sa == 255) { 2594 /* 2595 * Schedule is FULL, set length to zero: 2596 */ 2597 2598 *plen = 0; 2599 sa = USB_FS_ISOC_UFRAME_MAX - 1; 2600 } 2601 if (*plen) { 2602 /* 2603 * only call "usbd_get_page()" when we have a 2604 * non-zero length 2605 */ 2606 usbd_get_page(xfer->frbuffers, buf_offset, &buf_res); 2607 td->sitd_bp[0] = htohc32(sc, buf_res.physaddr); 2608 buf_offset += *plen; 2609 /* 2610 * NOTE: We need to subtract one from the offset so 2611 * that we are on a valid page! 2612 */ 2613 usbd_get_page(xfer->frbuffers, buf_offset - 1, 2614 &buf_res); 2615 temp = buf_res.physaddr & ~0xFFF; 2616 } else { 2617 td->sitd_bp[0] = 0; 2618 temp = 0; 2619 } 2620 2621 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_OUT) { 2622 tlen = *plen; 2623 if (tlen <= 188) { 2624 temp |= 1; /* T-count = 1, TP = ALL */ 2625 tlen = 1; 2626 } else { 2627 tlen += 187; 2628 tlen /= 188; 2629 temp |= tlen; /* T-count = [1..6] */ 2630 temp |= 8; /* TP = Begin */ 2631 } 2632 2633 tlen += sa; 2634 2635 if (tlen >= 8) { 2636 sb = 0; 2637 } else { 2638 sb = (1 << tlen); 2639 } 2640 2641 sa = (1 << sa); 2642 sa = (sb - sa) & 0x3F; 2643 sb = 0; 2644 } else { 2645 sb = (-(4 << sa)) & 0xFE; 2646 sa = (1 << sa) & 0x3F; 2647 } 2648 2649 sitd_mask = (EHCI_SITD_SET_SMASK(sa) | 2650 EHCI_SITD_SET_CMASK(sb)); 2651 2652 td->sitd_bp[1] = htohc32(sc, temp); 2653 2654 td->sitd_mask = htohc32(sc, sitd_mask); 2655 2656 if (nframes == 0) { 2657 td->sitd_status = htohc32(sc, 2658 EHCI_SITD_IOC | 2659 EHCI_SITD_ACTIVE | 2660 EHCI_SITD_SET_LEN(*plen)); 2661 } else { 2662 td->sitd_status = htohc32(sc, 2663 EHCI_SITD_ACTIVE | 2664 EHCI_SITD_SET_LEN(*plen)); 2665 } 2666 usb_pc_cpu_flush(td->page_cache); 2667 2668#ifdef USB_DEBUG 2669 if (ehcidebug > 15) { 2670 DPRINTF("FS-TD %d\n", nframes); 2671 ehci_dump_sitd(sc, td); 2672 } 2673#endif 2674 /* insert TD into schedule */ 2675 EHCI_APPEND_FS_TD(td, *pp_last); 2676 pp_last++; 2677 2678 plen++; 2679 td_last = td; 2680 td = td->obj_next; 2681 } 2682 2683 xfer->td_transfer_last = td_last; 2684 2685 /* update isoc_next */ 2686 xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_fs_p_last[0]) & 2687 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2688 2689 /* 2690 * We don't allow cancelling of the SPLIT transaction USB FULL 2691 * speed transfer, because it disturbs the bandwidth 2692 * computation algorithm. 2693 */ 2694 xfer->flags_int.can_cancel_immed = 0; 2695} 2696 2697static void 2698ehci_device_isoc_fs_start(struct usb_xfer *xfer) 2699{ 2700 /* 2701 * We don't allow cancelling of the SPLIT transaction USB FULL 2702 * speed transfer, because it disturbs the bandwidth 2703 * computation algorithm. 2704 */ 2705 xfer->flags_int.can_cancel_immed = 0; 2706 2707 /* set a default timeout */ 2708 if (xfer->timeout == 0) 2709 xfer->timeout = 500; /* ms */ 2710 2711 /* put transfer on interrupt queue */ 2712 ehci_transfer_intr_enqueue(xfer); 2713} 2714 2715struct usb_pipe_methods ehci_device_isoc_fs_methods = 2716{ 2717 .open = ehci_device_isoc_fs_open, 2718 .close = ehci_device_isoc_fs_close, 2719 .enter = ehci_device_isoc_fs_enter, 2720 .start = ehci_device_isoc_fs_start, 2721}; 2722 2723/*------------------------------------------------------------------------* 2724 * ehci high speed isochronous support 2725 *------------------------------------------------------------------------*/ 2726static void 2727ehci_device_isoc_hs_open(struct usb_xfer *xfer) 2728{ 2729 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2730 ehci_itd_t *td; 2731 uint32_t temp; 2732 uint8_t ds; 2733 2734 usb_hs_bandwidth_alloc(xfer); 2735 2736 /* initialize all TD's */ 2737 2738 for (ds = 0; ds != 2; ds++) { 2739 2740 for (td = xfer->td_start[ds]; td; td = td->obj_next) { 2741 2742 /* set TD inactive */ 2743 td->itd_status[0] = 0; 2744 td->itd_status[1] = 0; 2745 td->itd_status[2] = 0; 2746 td->itd_status[3] = 0; 2747 td->itd_status[4] = 0; 2748 td->itd_status[5] = 0; 2749 td->itd_status[6] = 0; 2750 td->itd_status[7] = 0; 2751 2752 /* set endpoint and address */ 2753 td->itd_bp[0] = htohc32(sc, 2754 EHCI_ITD_SET_ADDR(xfer->address) | 2755 EHCI_ITD_SET_ENDPT(UE_GET_ADDR(xfer->endpointno))); 2756 2757 temp = 2758 EHCI_ITD_SET_MPL(xfer->max_packet_size & 0x7FF); 2759 2760 /* set direction */ 2761 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) { 2762 temp |= EHCI_ITD_SET_DIR_IN; 2763 } 2764 /* set maximum packet size */ 2765 td->itd_bp[1] = htohc32(sc, temp); 2766 2767 /* set transfer multiplier */ 2768 td->itd_bp[2] = htohc32(sc, xfer->max_packet_count & 3); 2769 2770 usb_pc_cpu_flush(td->page_cache); 2771 } 2772 } 2773} 2774 2775static void 2776ehci_device_isoc_hs_close(struct usb_xfer *xfer) 2777{ 2778 ehci_device_done(xfer, USB_ERR_CANCELLED); 2779 2780 /* bandwidth must be freed after device done */ 2781 usb_hs_bandwidth_free(xfer); 2782} 2783 2784static void 2785ehci_device_isoc_hs_enter(struct usb_xfer *xfer) 2786{ 2787 struct usb_page_search buf_res; 2788 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2789 ehci_itd_t *td; 2790 ehci_itd_t *td_last = NULL; 2791 ehci_itd_t **pp_last; 2792 bus_size_t page_addr; 2793 uint32_t *plen; 2794 uint32_t status; 2795 uint32_t buf_offset; 2796 uint32_t nframes; 2797 uint32_t itd_offset[8 + 1]; 2798 uint8_t x; 2799 uint8_t td_no; 2800 uint8_t page_no; 2801 uint8_t shift = usbd_xfer_get_fps_shift(xfer); 2802 2803#ifdef USB_DEBUG 2804 uint8_t once = 1; 2805 2806#endif 2807 2808 DPRINTFN(6, "xfer=%p next=%d nframes=%d shift=%d\n", 2809 xfer, xfer->endpoint->isoc_next, xfer->nframes, (int)shift); 2810 2811 /* get the current frame index */ 2812 2813 nframes = EOREAD4(sc, EHCI_FRINDEX) / 8; 2814 2815 /* 2816 * check if the frame index is within the window where the frames 2817 * will be inserted 2818 */ 2819 buf_offset = (nframes - xfer->endpoint->isoc_next) & 2820 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2821 2822 if ((xfer->endpoint->is_synced == 0) || 2823 (buf_offset < (((xfer->nframes << shift) + 7) / 8))) { 2824 /* 2825 * If there is data underflow or the pipe queue is empty we 2826 * schedule the transfer a few frames ahead of the current 2827 * frame position. Else two isochronous transfers might 2828 * overlap. 2829 */ 2830 xfer->endpoint->isoc_next = (nframes + 3) & 2831 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2832 xfer->endpoint->is_synced = 1; 2833 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 2834 } 2835 /* 2836 * compute how many milliseconds the insertion is ahead of the 2837 * current frame position: 2838 */ 2839 buf_offset = (xfer->endpoint->isoc_next - nframes) & 2840 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2841 2842 /* 2843 * pre-compute when the isochronous transfer will be finished: 2844 */ 2845 xfer->isoc_time_complete = 2846 usb_isoc_time_expand(&sc->sc_bus, nframes) + buf_offset + 2847 (((xfer->nframes << shift) + 7) / 8); 2848 2849 /* get the real number of frames */ 2850 2851 nframes = xfer->nframes; 2852 2853 buf_offset = 0; 2854 td_no = 0; 2855 2856 plen = xfer->frlengths; 2857 2858 /* toggle the DMA set we are using */ 2859 xfer->flags_int.curr_dma_set ^= 1; 2860 2861 /* get next DMA set */ 2862 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 2863 xfer->td_transfer_first = td; 2864 2865 pp_last = &sc->sc_isoc_hs_p_last[xfer->endpoint->isoc_next]; 2866 2867 /* store starting position */ 2868 2869 xfer->qh_pos = xfer->endpoint->isoc_next; 2870 2871 while (nframes) { 2872 if (td == NULL) { 2873 panic("%s:%d: out of TD's\n", 2874 __FUNCTION__, __LINE__); 2875 } 2876 if (pp_last >= &sc->sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2877 pp_last = &sc->sc_isoc_hs_p_last[0]; 2878 } 2879 /* range check */ 2880 if (*plen > xfer->max_frame_size) { 2881#ifdef USB_DEBUG 2882 if (once) { 2883 once = 0; 2884 printf("%s: frame length(%d) exceeds %d bytes " 2885 "(frame truncated)\n", 2886 __FUNCTION__, *plen, xfer->max_frame_size); 2887 } 2888#endif 2889 *plen = xfer->max_frame_size; 2890 } 2891 2892 if (xfer->endpoint->usb_smask & (1 << td_no)) { 2893 status = (EHCI_ITD_SET_LEN(*plen) | 2894 EHCI_ITD_ACTIVE | 2895 EHCI_ITD_SET_PG(0)); 2896 td->itd_status[td_no] = htohc32(sc, status); 2897 itd_offset[td_no] = buf_offset; 2898 buf_offset += *plen; 2899 plen++; 2900 nframes --; 2901 } else { 2902 td->itd_status[td_no] = 0; /* not active */ 2903 itd_offset[td_no] = buf_offset; 2904 } 2905 2906 td_no++; 2907 2908 if ((td_no == 8) || (nframes == 0)) { 2909 2910 /* the rest of the transfers are not active, if any */ 2911 for (x = td_no; x != 8; x++) { 2912 td->itd_status[x] = 0; /* not active */ 2913 } 2914 2915 /* check if there is any data to be transferred */ 2916 if (itd_offset[0] != buf_offset) { 2917 page_no = 0; 2918 itd_offset[td_no] = buf_offset; 2919 2920 /* get first page offset */ 2921 usbd_get_page(xfer->frbuffers, itd_offset[0], &buf_res); 2922 /* get page address */ 2923 page_addr = buf_res.physaddr & ~0xFFF; 2924 /* update page address */ 2925 td->itd_bp[0] &= htohc32(sc, 0xFFF); 2926 td->itd_bp[0] |= htohc32(sc, page_addr); 2927 2928 for (x = 0; x != td_no; x++) { 2929 /* set page number and page offset */ 2930 status = (EHCI_ITD_SET_PG(page_no) | 2931 (buf_res.physaddr & 0xFFF)); 2932 td->itd_status[x] |= htohc32(sc, status); 2933 2934 /* get next page offset */ 2935 if (itd_offset[x + 1] == buf_offset) { 2936 /* 2937 * We subtract one so that 2938 * we don't go off the last 2939 * page! 2940 */ 2941 usbd_get_page(xfer->frbuffers, buf_offset - 1, &buf_res); 2942 } else { 2943 usbd_get_page(xfer->frbuffers, itd_offset[x + 1], &buf_res); 2944 } 2945 2946 /* check if we need a new page */ 2947 if ((buf_res.physaddr ^ page_addr) & ~0xFFF) { 2948 /* new page needed */ 2949 page_addr = buf_res.physaddr & ~0xFFF; 2950 if (page_no == 6) { 2951 panic("%s: too many pages\n", __FUNCTION__); 2952 } 2953 page_no++; 2954 /* update page address */ 2955 td->itd_bp[page_no] &= htohc32(sc, 0xFFF); 2956 td->itd_bp[page_no] |= htohc32(sc, page_addr); 2957 } 2958 } 2959 } 2960 /* set IOC bit if we are complete */ 2961 if (nframes == 0) { 2962 td->itd_status[td_no - 1] |= htohc32(sc, EHCI_ITD_IOC); 2963 } 2964 usb_pc_cpu_flush(td->page_cache); 2965#ifdef USB_DEBUG 2966 if (ehcidebug > 15) { 2967 DPRINTF("HS-TD %d\n", nframes); 2968 ehci_dump_itd(sc, td); 2969 } 2970#endif 2971 /* insert TD into schedule */ 2972 EHCI_APPEND_HS_TD(td, *pp_last); 2973 pp_last++; 2974 2975 td_no = 0; 2976 td_last = td; 2977 td = td->obj_next; 2978 } 2979 } 2980 2981 xfer->td_transfer_last = td_last; 2982 2983 /* update isoc_next */ 2984 xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_hs_p_last[0]) & 2985 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2986} 2987 2988static void 2989ehci_device_isoc_hs_start(struct usb_xfer *xfer) 2990{ 2991 /* put transfer on interrupt queue */ 2992 ehci_transfer_intr_enqueue(xfer); 2993} 2994 2995struct usb_pipe_methods ehci_device_isoc_hs_methods = 2996{ 2997 .open = ehci_device_isoc_hs_open, 2998 .close = ehci_device_isoc_hs_close, 2999 .enter = ehci_device_isoc_hs_enter, 3000 .start = ehci_device_isoc_hs_start, 3001}; 3002 3003/*------------------------------------------------------------------------* 3004 * ehci root control support 3005 *------------------------------------------------------------------------* 3006 * Simulate a hardware hub by handling all the necessary requests. 3007 *------------------------------------------------------------------------*/ 3008 3009static const 3010struct usb_device_descriptor ehci_devd = 3011{ 3012 sizeof(struct usb_device_descriptor), 3013 UDESC_DEVICE, /* type */ 3014 {0x00, 0x02}, /* USB version */ 3015 UDCLASS_HUB, /* class */ 3016 UDSUBCLASS_HUB, /* subclass */ 3017 UDPROTO_HSHUBSTT, /* protocol */ 3018 64, /* max packet */ 3019 {0}, {0}, {0x00, 0x01}, /* device id */ 3020 1, 2, 0, /* string indicies */ 3021 1 /* # of configurations */ 3022}; 3023 3024static const 3025struct usb_device_qualifier ehci_odevd = 3026{ 3027 sizeof(struct usb_device_qualifier), 3028 UDESC_DEVICE_QUALIFIER, /* type */ 3029 {0x00, 0x02}, /* USB version */ 3030 UDCLASS_HUB, /* class */ 3031 UDSUBCLASS_HUB, /* subclass */ 3032 UDPROTO_FSHUB, /* protocol */ 3033 0, /* max packet */ 3034 0, /* # of configurations */ 3035 0 3036}; 3037 3038static const struct ehci_config_desc ehci_confd = { 3039 .confd = { 3040 .bLength = sizeof(struct usb_config_descriptor), 3041 .bDescriptorType = UDESC_CONFIG, 3042 .wTotalLength[0] = sizeof(ehci_confd), 3043 .bNumInterface = 1, 3044 .bConfigurationValue = 1, 3045 .iConfiguration = 0, 3046 .bmAttributes = UC_SELF_POWERED, 3047 .bMaxPower = 0 /* max power */ 3048 }, 3049 .ifcd = { 3050 .bLength = sizeof(struct usb_interface_descriptor), 3051 .bDescriptorType = UDESC_INTERFACE, 3052 .bNumEndpoints = 1, 3053 .bInterfaceClass = UICLASS_HUB, 3054 .bInterfaceSubClass = UISUBCLASS_HUB, 3055 .bInterfaceProtocol = 0, 3056 }, 3057 .endpd = { 3058 .bLength = sizeof(struct usb_endpoint_descriptor), 3059 .bDescriptorType = UDESC_ENDPOINT, 3060 .bEndpointAddress = UE_DIR_IN | EHCI_INTR_ENDPT, 3061 .bmAttributes = UE_INTERRUPT, 3062 .wMaxPacketSize[0] = 8, /* max packet (63 ports) */ 3063 .bInterval = 255, 3064 }, 3065}; 3066 3067static const 3068struct usb_hub_descriptor ehci_hubd = 3069{ 3070 .bDescLength = 0, /* dynamic length */ 3071 .bDescriptorType = UDESC_HUB, 3072}; 3073 3074static void 3075ehci_disown(ehci_softc_t *sc, uint16_t index, uint8_t lowspeed) 3076{ 3077 uint32_t port; 3078 uint32_t v; 3079 3080 DPRINTF("index=%d lowspeed=%d\n", index, lowspeed); 3081 3082 port = EHCI_PORTSC(index); 3083 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3084 EOWRITE4(sc, port, v | EHCI_PS_PO); 3085} 3086 3087static usb_error_t 3088ehci_roothub_exec(struct usb_device *udev, 3089 struct usb_device_request *req, const void **pptr, uint16_t *plength) 3090{ 3091 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3092 const char *str_ptr; 3093 const void *ptr; 3094 uint32_t port; 3095 uint32_t v; 3096 uint16_t len; 3097 uint16_t i; 3098 uint16_t value; 3099 uint16_t index; 3100 usb_error_t err; 3101 3102 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 3103 3104 /* buffer reset */ 3105 ptr = (const void *)&sc->sc_hub_desc; 3106 len = 0; 3107 err = 0; 3108 3109 value = UGETW(req->wValue); 3110 index = UGETW(req->wIndex); 3111 3112 DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x " 3113 "wValue=0x%04x wIndex=0x%04x\n", 3114 req->bmRequestType, req->bRequest, 3115 UGETW(req->wLength), value, index); 3116 3117#define C(x,y) ((x) | ((y) << 8)) 3118 switch (C(req->bRequest, req->bmRequestType)) { 3119 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3120 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3121 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3122 /* 3123 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3124 * for the integrated root hub. 3125 */ 3126 break; 3127 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3128 len = 1; 3129 sc->sc_hub_desc.temp[0] = sc->sc_conf; 3130 break; 3131 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3132 switch (value >> 8) { 3133 case UDESC_DEVICE: 3134 if ((value & 0xff) != 0) { 3135 err = USB_ERR_IOERROR; 3136 goto done; 3137 } 3138 len = sizeof(ehci_devd); 3139 ptr = (const void *)&ehci_devd; 3140 break; 3141 /* 3142 * We can't really operate at another speed, 3143 * but the specification says we need this 3144 * descriptor: 3145 */ 3146 case UDESC_DEVICE_QUALIFIER: 3147 if ((value & 0xff) != 0) { 3148 err = USB_ERR_IOERROR; 3149 goto done; 3150 } 3151 len = sizeof(ehci_odevd); 3152 ptr = (const void *)&ehci_odevd; 3153 break; 3154 3155 case UDESC_CONFIG: 3156 if ((value & 0xff) != 0) { 3157 err = USB_ERR_IOERROR; 3158 goto done; 3159 } 3160 len = sizeof(ehci_confd); 3161 ptr = (const void *)&ehci_confd; 3162 break; 3163 3164 case UDESC_STRING: 3165 switch (value & 0xff) { 3166 case 0: /* Language table */ 3167 str_ptr = "\001"; 3168 break; 3169 3170 case 1: /* Vendor */ 3171 str_ptr = sc->sc_vendor; 3172 break; 3173 3174 case 2: /* Product */ 3175 str_ptr = "EHCI root HUB"; 3176 break; 3177 3178 default: 3179 str_ptr = ""; 3180 break; 3181 } 3182 3183 len = usb_make_str_desc( 3184 sc->sc_hub_desc.temp, 3185 sizeof(sc->sc_hub_desc.temp), 3186 str_ptr); 3187 break; 3188 default: 3189 err = USB_ERR_IOERROR; 3190 goto done; 3191 } 3192 break; 3193 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3194 len = 1; 3195 sc->sc_hub_desc.temp[0] = 0; 3196 break; 3197 case C(UR_GET_STATUS, UT_READ_DEVICE): 3198 len = 2; 3199 USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED); 3200 break; 3201 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3202 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3203 len = 2; 3204 USETW(sc->sc_hub_desc.stat.wStatus, 0); 3205 break; 3206 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3207 if (value >= EHCI_MAX_DEVICES) { 3208 err = USB_ERR_IOERROR; 3209 goto done; 3210 } 3211 sc->sc_addr = value; 3212 break; 3213 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3214 if ((value != 0) && (value != 1)) { 3215 err = USB_ERR_IOERROR; 3216 goto done; 3217 } 3218 sc->sc_conf = value; 3219 break; 3220 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3221 break; 3222 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3223 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3224 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3225 err = USB_ERR_IOERROR; 3226 goto done; 3227 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3228 break; 3229 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3230 break; 3231 /* Hub requests */ 3232 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3233 break; 3234 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3235 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE\n"); 3236 3237 if ((index < 1) || 3238 (index > sc->sc_noport)) { 3239 err = USB_ERR_IOERROR; 3240 goto done; 3241 } 3242 port = EHCI_PORTSC(index); 3243 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3244 switch (value) { 3245 case UHF_PORT_ENABLE: 3246 EOWRITE4(sc, port, v & ~EHCI_PS_PE); 3247 break; 3248 case UHF_PORT_SUSPEND: 3249 if ((v & EHCI_PS_SUSP) && (!(v & EHCI_PS_FPR))) { 3250 3251 /* 3252 * waking up a High Speed device is rather 3253 * complicated if 3254 */ 3255 EOWRITE4(sc, port, v | EHCI_PS_FPR); 3256 } 3257 /* wait 20ms for resume sequence to complete */ 3258 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50); 3259 3260 EOWRITE4(sc, port, v & ~(EHCI_PS_SUSP | 3261 EHCI_PS_FPR | (3 << 10) /* High Speed */ )); 3262 3263 /* 4ms settle time */ 3264 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 250); 3265 break; 3266 case UHF_PORT_POWER: 3267 EOWRITE4(sc, port, v & ~EHCI_PS_PP); 3268 break; 3269 case UHF_PORT_TEST: 3270 DPRINTFN(3, "clear port test " 3271 "%d\n", index); 3272 break; 3273 case UHF_PORT_INDICATOR: 3274 DPRINTFN(3, "clear port ind " 3275 "%d\n", index); 3276 EOWRITE4(sc, port, v & ~EHCI_PS_PIC); 3277 break; 3278 case UHF_C_PORT_CONNECTION: 3279 EOWRITE4(sc, port, v | EHCI_PS_CSC); 3280 break; 3281 case UHF_C_PORT_ENABLE: 3282 EOWRITE4(sc, port, v | EHCI_PS_PEC); 3283 break; 3284 case UHF_C_PORT_SUSPEND: 3285 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 3286 break; 3287 case UHF_C_PORT_OVER_CURRENT: 3288 EOWRITE4(sc, port, v | EHCI_PS_OCC); 3289 break; 3290 case UHF_C_PORT_RESET: 3291 sc->sc_isreset = 0; 3292 break; 3293 default: 3294 err = USB_ERR_IOERROR; 3295 goto done; 3296 } 3297 break; 3298 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3299 if ((value & 0xff) != 0) { 3300 err = USB_ERR_IOERROR; 3301 goto done; 3302 } 3303 v = EREAD4(sc, EHCI_HCSPARAMS); 3304 3305 sc->sc_hub_desc.hubd = ehci_hubd; 3306 sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport; 3307 3308 if (EHCI_HCS_PPC(v)) 3309 i = UHD_PWR_INDIVIDUAL; 3310 else 3311 i = UHD_PWR_NO_SWITCH; 3312 3313 if (EHCI_HCS_P_INDICATOR(v)) 3314 i |= UHD_PORT_IND; 3315 3316 USETW(sc->sc_hub_desc.hubd.wHubCharacteristics, i); 3317 /* XXX can't find out? */ 3318 sc->sc_hub_desc.hubd.bPwrOn2PwrGood = 200; 3319 /* XXX don't know if ports are removable or not */ 3320 sc->sc_hub_desc.hubd.bDescLength = 3321 8 + ((sc->sc_noport + 7) / 8); 3322 len = sc->sc_hub_desc.hubd.bDescLength; 3323 break; 3324 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3325 len = 16; 3326 memset(sc->sc_hub_desc.temp, 0, 16); 3327 break; 3328 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3329 DPRINTFN(9, "get port status i=%d\n", 3330 index); 3331 if ((index < 1) || 3332 (index > sc->sc_noport)) { 3333 err = USB_ERR_IOERROR; 3334 goto done; 3335 } 3336 v = EOREAD4(sc, EHCI_PORTSC(index)); 3337 DPRINTFN(9, "port status=0x%04x\n", v); 3338 if (sc->sc_flags & (EHCI_SCFLG_FORCESPEED | EHCI_SCFLG_TT)) { 3339 if ((v & 0xc000000) == 0x8000000) 3340 i = UPS_HIGH_SPEED; 3341 else if ((v & 0xc000000) == 0x4000000) 3342 i = UPS_LOW_SPEED; 3343 else 3344 i = 0; 3345 } else { 3346 i = UPS_HIGH_SPEED; 3347 } 3348 if (v & EHCI_PS_CS) 3349 i |= UPS_CURRENT_CONNECT_STATUS; 3350 if (v & EHCI_PS_PE) 3351 i |= UPS_PORT_ENABLED; 3352 if ((v & EHCI_PS_SUSP) && !(v & EHCI_PS_FPR)) 3353 i |= UPS_SUSPEND; 3354 if (v & EHCI_PS_OCA) 3355 i |= UPS_OVERCURRENT_INDICATOR; 3356 if (v & EHCI_PS_PR) 3357 i |= UPS_RESET; 3358 if (v & EHCI_PS_PP) 3359 i |= UPS_PORT_POWER; 3360 USETW(sc->sc_hub_desc.ps.wPortStatus, i); 3361 i = 0; 3362 if (v & EHCI_PS_CSC) 3363 i |= UPS_C_CONNECT_STATUS; 3364 if (v & EHCI_PS_PEC) 3365 i |= UPS_C_PORT_ENABLED; 3366 if (v & EHCI_PS_OCC) 3367 i |= UPS_C_OVERCURRENT_INDICATOR; 3368 if (v & EHCI_PS_FPR) 3369 i |= UPS_C_SUSPEND; 3370 if (sc->sc_isreset) 3371 i |= UPS_C_PORT_RESET; 3372 USETW(sc->sc_hub_desc.ps.wPortChange, i); 3373 len = sizeof(sc->sc_hub_desc.ps); 3374 break; 3375 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3376 err = USB_ERR_IOERROR; 3377 goto done; 3378 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3379 break; 3380 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3381 if ((index < 1) || 3382 (index > sc->sc_noport)) { 3383 err = USB_ERR_IOERROR; 3384 goto done; 3385 } 3386 port = EHCI_PORTSC(index); 3387 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3388 switch (value) { 3389 case UHF_PORT_ENABLE: 3390 EOWRITE4(sc, port, v | EHCI_PS_PE); 3391 break; 3392 case UHF_PORT_SUSPEND: 3393 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 3394 break; 3395 case UHF_PORT_RESET: 3396 DPRINTFN(6, "reset port %d\n", index); 3397#ifdef USB_DEBUG 3398 if (ehcinohighspeed) { 3399 /* 3400 * Connect USB device to companion 3401 * controller. 3402 */ 3403 ehci_disown(sc, index, 1); 3404 break; 3405 } 3406#endif 3407 if (EHCI_PS_IS_LOWSPEED(v) && 3408 (sc->sc_flags & EHCI_SCFLG_TT) == 0) { 3409 /* Low speed device, give up ownership. */ 3410 ehci_disown(sc, index, 1); 3411 break; 3412 } 3413 /* Start reset sequence. */ 3414 v &= ~(EHCI_PS_PE | EHCI_PS_PR); 3415 EOWRITE4(sc, port, v | EHCI_PS_PR); 3416 3417 /* Wait for reset to complete. */ 3418 usb_pause_mtx(&sc->sc_bus.bus_mtx, 3419 USB_MS_TO_TICKS(usb_port_root_reset_delay)); 3420 3421 /* Terminate reset sequence. */ 3422 if (!(sc->sc_flags & EHCI_SCFLG_NORESTERM)) 3423 EOWRITE4(sc, port, v); 3424 3425 /* Wait for HC to complete reset. */ 3426 usb_pause_mtx(&sc->sc_bus.bus_mtx, 3427 USB_MS_TO_TICKS(EHCI_PORT_RESET_COMPLETE)); 3428 3429 v = EOREAD4(sc, port); 3430 DPRINTF("ehci after reset, status=0x%08x\n", v); 3431 if (v & EHCI_PS_PR) { 3432 device_printf(sc->sc_bus.bdev, 3433 "port reset timeout\n"); 3434 err = USB_ERR_TIMEOUT; 3435 goto done; 3436 } 3437 if (!(v & EHCI_PS_PE) && 3438 (sc->sc_flags & EHCI_SCFLG_TT) == 0) { 3439 /* Not a high speed device, give up ownership.*/ 3440 ehci_disown(sc, index, 0); 3441 break; 3442 } 3443 sc->sc_isreset = 1; 3444 DPRINTF("ehci port %d reset, status = 0x%08x\n", 3445 index, v); 3446 break; 3447 3448 case UHF_PORT_POWER: 3449 DPRINTFN(3, "set port power %d\n", index); 3450 EOWRITE4(sc, port, v | EHCI_PS_PP); 3451 break; 3452 3453 case UHF_PORT_TEST: 3454 DPRINTFN(3, "set port test %d\n", index); 3455 break; 3456 3457 case UHF_PORT_INDICATOR: 3458 DPRINTFN(3, "set port ind %d\n", index); 3459 EOWRITE4(sc, port, v | EHCI_PS_PIC); 3460 break; 3461 3462 default: 3463 err = USB_ERR_IOERROR; 3464 goto done; 3465 } 3466 break; 3467 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): 3468 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): 3469 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): 3470 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 3471 break; 3472 default: 3473 err = USB_ERR_IOERROR; 3474 goto done; 3475 } 3476done: 3477 *plength = len; 3478 *pptr = ptr; 3479 return (err); 3480} 3481 3482static void 3483ehci_xfer_setup(struct usb_setup_params *parm) 3484{ 3485 struct usb_page_search page_info; 3486 struct usb_page_cache *pc; 3487 ehci_softc_t *sc; 3488 struct usb_xfer *xfer; 3489 void *last_obj; 3490 uint32_t nqtd; 3491 uint32_t nqh; 3492 uint32_t nsitd; 3493 uint32_t nitd; 3494 uint32_t n; 3495 3496 sc = EHCI_BUS2SC(parm->udev->bus); 3497 xfer = parm->curr_xfer; 3498 3499 nqtd = 0; 3500 nqh = 0; 3501 nsitd = 0; 3502 nitd = 0; 3503 3504 /* 3505 * compute maximum number of some structures 3506 */ 3507 if (parm->methods == &ehci_device_ctrl_methods) { 3508 3509 /* 3510 * The proof for the "nqtd" formula is illustrated like 3511 * this: 3512 * 3513 * +------------------------------------+ 3514 * | | 3515 * | |remainder -> | 3516 * | +-----+---+ | 3517 * | | xxx | x | frm 0 | 3518 * | +-----+---++ | 3519 * | | xxx | xx | frm 1 | 3520 * | +-----+----+ | 3521 * | ... | 3522 * +------------------------------------+ 3523 * 3524 * "xxx" means a completely full USB transfer descriptor 3525 * 3526 * "x" and "xx" means a short USB packet 3527 * 3528 * For the remainder of an USB transfer modulo 3529 * "max_data_length" we need two USB transfer descriptors. 3530 * One to transfer the remaining data and one to finalise 3531 * with a zero length packet in case the "force_short_xfer" 3532 * flag is set. We only need two USB transfer descriptors in 3533 * the case where the transfer length of the first one is a 3534 * factor of "max_frame_size". The rest of the needed USB 3535 * transfer descriptors is given by the buffer size divided 3536 * by the maximum data payload. 3537 */ 3538 parm->hc_max_packet_size = 0x400; 3539 parm->hc_max_packet_count = 1; 3540 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3541 xfer->flags_int.bdma_enable = 1; 3542 3543 usbd_transfer_setup_sub(parm); 3544 3545 nqh = 1; 3546 nqtd = ((2 * xfer->nframes) + 1 /* STATUS */ 3547 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3548 3549 } else if (parm->methods == &ehci_device_bulk_methods) { 3550 3551 parm->hc_max_packet_size = 0x400; 3552 parm->hc_max_packet_count = 1; 3553 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3554 xfer->flags_int.bdma_enable = 1; 3555 3556 usbd_transfer_setup_sub(parm); 3557 3558 nqh = 1; 3559 nqtd = ((2 * xfer->nframes) 3560 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3561 3562 } else if (parm->methods == &ehci_device_intr_methods) { 3563 3564 if (parm->speed == USB_SPEED_HIGH) { 3565 parm->hc_max_packet_size = 0x400; 3566 parm->hc_max_packet_count = 3; 3567 } else if (parm->speed == USB_SPEED_FULL) { 3568 parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME; 3569 parm->hc_max_packet_count = 1; 3570 } else { 3571 parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME / 8; 3572 parm->hc_max_packet_count = 1; 3573 } 3574 3575 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3576 xfer->flags_int.bdma_enable = 1; 3577 3578 usbd_transfer_setup_sub(parm); 3579 3580 nqh = 1; 3581 nqtd = ((2 * xfer->nframes) 3582 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3583 3584 } else if (parm->methods == &ehci_device_isoc_fs_methods) { 3585 3586 parm->hc_max_packet_size = 0x3FF; 3587 parm->hc_max_packet_count = 1; 3588 parm->hc_max_frame_size = 0x3FF; 3589 xfer->flags_int.bdma_enable = 1; 3590 3591 usbd_transfer_setup_sub(parm); 3592 3593 nsitd = xfer->nframes; 3594 3595 } else if (parm->methods == &ehci_device_isoc_hs_methods) { 3596 3597 parm->hc_max_packet_size = 0x400; 3598 parm->hc_max_packet_count = 3; 3599 parm->hc_max_frame_size = 0xC00; 3600 xfer->flags_int.bdma_enable = 1; 3601 3602 usbd_transfer_setup_sub(parm); 3603 3604 nitd = ((xfer->nframes + 7) / 8) << 3605 usbd_xfer_get_fps_shift(xfer); 3606 3607 } else { 3608 3609 parm->hc_max_packet_size = 0x400; 3610 parm->hc_max_packet_count = 1; 3611 parm->hc_max_frame_size = 0x400; 3612 3613 usbd_transfer_setup_sub(parm); 3614 } 3615 3616alloc_dma_set: 3617 3618 if (parm->err) { 3619 return; 3620 } 3621 /* 3622 * Allocate queue heads and transfer descriptors 3623 */ 3624 last_obj = NULL; 3625 3626 if (usbd_transfer_setup_sub_malloc( 3627 parm, &pc, sizeof(ehci_itd_t), 3628 EHCI_ITD_ALIGN, nitd)) { 3629 parm->err = USB_ERR_NOMEM; 3630 return; 3631 } 3632 if (parm->buf) { 3633 for (n = 0; n != nitd; n++) { 3634 ehci_itd_t *td; 3635 3636 usbd_get_page(pc + n, 0, &page_info); 3637 3638 td = page_info.buffer; 3639 3640 /* init TD */ 3641 td->itd_self = htohc32(sc, page_info.physaddr | EHCI_LINK_ITD); 3642 td->obj_next = last_obj; 3643 td->page_cache = pc + n; 3644 3645 last_obj = td; 3646 3647 usb_pc_cpu_flush(pc + n); 3648 } 3649 } 3650 if (usbd_transfer_setup_sub_malloc( 3651 parm, &pc, sizeof(ehci_sitd_t), 3652 EHCI_SITD_ALIGN, nsitd)) { 3653 parm->err = USB_ERR_NOMEM; 3654 return; 3655 } 3656 if (parm->buf) { 3657 for (n = 0; n != nsitd; n++) { 3658 ehci_sitd_t *td; 3659 3660 usbd_get_page(pc + n, 0, &page_info); 3661 3662 td = page_info.buffer; 3663 3664 /* init TD */ 3665 td->sitd_self = htohc32(sc, page_info.physaddr | EHCI_LINK_SITD); 3666 td->obj_next = last_obj; 3667 td->page_cache = pc + n; 3668 3669 last_obj = td; 3670 3671 usb_pc_cpu_flush(pc + n); 3672 } 3673 } 3674 if (usbd_transfer_setup_sub_malloc( 3675 parm, &pc, sizeof(ehci_qtd_t), 3676 EHCI_QTD_ALIGN, nqtd)) { 3677 parm->err = USB_ERR_NOMEM; 3678 return; 3679 } 3680 if (parm->buf) { 3681 for (n = 0; n != nqtd; n++) { 3682 ehci_qtd_t *qtd; 3683 3684 usbd_get_page(pc + n, 0, &page_info); 3685 3686 qtd = page_info.buffer; 3687 3688 /* init TD */ 3689 qtd->qtd_self = htohc32(sc, page_info.physaddr); 3690 qtd->obj_next = last_obj; 3691 qtd->page_cache = pc + n; 3692 3693 last_obj = qtd; 3694 3695 usb_pc_cpu_flush(pc + n); 3696 } 3697 } 3698 xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj; 3699 3700 last_obj = NULL; 3701 3702 if (usbd_transfer_setup_sub_malloc( 3703 parm, &pc, sizeof(ehci_qh_t), 3704 EHCI_QH_ALIGN, nqh)) { 3705 parm->err = USB_ERR_NOMEM; 3706 return; 3707 } 3708 if (parm->buf) { 3709 for (n = 0; n != nqh; n++) { 3710 ehci_qh_t *qh; 3711 3712 usbd_get_page(pc + n, 0, &page_info); 3713 3714 qh = page_info.buffer; 3715 3716 /* init QH */ 3717 qh->qh_self = htohc32(sc, page_info.physaddr | EHCI_LINK_QH); 3718 qh->obj_next = last_obj; 3719 qh->page_cache = pc + n; 3720 3721 last_obj = qh; 3722 3723 usb_pc_cpu_flush(pc + n); 3724 } 3725 } 3726 xfer->qh_start[xfer->flags_int.curr_dma_set] = last_obj; 3727 3728 if (!xfer->flags_int.curr_dma_set) { 3729 xfer->flags_int.curr_dma_set = 1; 3730 goto alloc_dma_set; 3731 } 3732} 3733 3734static void 3735ehci_xfer_unsetup(struct usb_xfer *xfer) 3736{ 3737 return; 3738} 3739 3740static void 3741ehci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, 3742 struct usb_endpoint *ep) 3743{ 3744 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3745 3746 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n", 3747 ep, udev->address, 3748 edesc->bEndpointAddress, udev->flags.usb_mode, 3749 sc->sc_addr); 3750 3751 if (udev->device_index != sc->sc_addr) { 3752 3753 if ((udev->speed != USB_SPEED_HIGH) && 3754 ((udev->hs_hub_addr == 0) || 3755 (udev->hs_port_no == 0) || 3756 (udev->parent_hs_hub == NULL) || 3757 (udev->parent_hs_hub->hub == NULL))) { 3758 /* We need a transaction translator */ 3759 goto done; 3760 } 3761 switch (edesc->bmAttributes & UE_XFERTYPE) { 3762 case UE_CONTROL: 3763 ep->methods = &ehci_device_ctrl_methods; 3764 break; 3765 case UE_INTERRUPT: 3766 ep->methods = &ehci_device_intr_methods; 3767 break; 3768 case UE_ISOCHRONOUS: 3769 if (udev->speed == USB_SPEED_HIGH) { 3770 ep->methods = &ehci_device_isoc_hs_methods; 3771 } else if (udev->speed == USB_SPEED_FULL) { 3772 ep->methods = &ehci_device_isoc_fs_methods; 3773 } 3774 break; 3775 case UE_BULK: 3776 ep->methods = &ehci_device_bulk_methods; 3777 break; 3778 default: 3779 /* do nothing */ 3780 break; 3781 } 3782 } 3783done: 3784 return; 3785} 3786 3787static void 3788ehci_get_dma_delay(struct usb_device *udev, uint32_t *pus) 3789{ 3790 /* 3791 * Wait until the hardware has finished any possible use of 3792 * the transfer descriptor(s) and QH 3793 */ 3794 *pus = (1125); /* microseconds */ 3795} 3796 3797static void 3798ehci_device_resume(struct usb_device *udev) 3799{ 3800 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3801 struct usb_xfer *xfer; 3802 struct usb_pipe_methods *methods; 3803 3804 DPRINTF("\n"); 3805 3806 USB_BUS_LOCK(udev->bus); 3807 3808 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3809 3810 if (xfer->xroot->udev == udev) { 3811 3812 methods = xfer->endpoint->methods; 3813 3814 if ((methods == &ehci_device_bulk_methods) || 3815 (methods == &ehci_device_ctrl_methods)) { 3816 EHCI_APPEND_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3817 sc->sc_async_p_last); 3818 } 3819 if (methods == &ehci_device_intr_methods) { 3820 EHCI_APPEND_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3821 sc->sc_intr_p_last[xfer->qh_pos]); 3822 } 3823 } 3824 } 3825 3826 USB_BUS_UNLOCK(udev->bus); 3827 3828 return; 3829} 3830 3831static void 3832ehci_device_suspend(struct usb_device *udev) 3833{ 3834 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3835 struct usb_xfer *xfer; 3836 struct usb_pipe_methods *methods; 3837 3838 DPRINTF("\n"); 3839 3840 USB_BUS_LOCK(udev->bus); 3841 3842 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3843 3844 if (xfer->xroot->udev == udev) { 3845 3846 methods = xfer->endpoint->methods; 3847 3848 if ((methods == &ehci_device_bulk_methods) || 3849 (methods == &ehci_device_ctrl_methods)) { 3850 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3851 sc->sc_async_p_last); 3852 } 3853 if (methods == &ehci_device_intr_methods) { 3854 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3855 sc->sc_intr_p_last[xfer->qh_pos]); 3856 } 3857 } 3858 } 3859 3860 USB_BUS_UNLOCK(udev->bus); 3861} 3862 3863static void 3864ehci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) 3865{ 3866 struct ehci_softc *sc = EHCI_BUS2SC(bus); 3867 3868 switch (state) { 3869 case USB_HW_POWER_SUSPEND: 3870 case USB_HW_POWER_SHUTDOWN: 3871 ehci_suspend(sc); 3872 break; 3873 case USB_HW_POWER_RESUME: 3874 ehci_resume(sc); 3875 break; 3876 default: 3877 break; 3878 } 3879} 3880 3881static void 3882ehci_set_hw_power(struct usb_bus *bus) 3883{ 3884 ehci_softc_t *sc = EHCI_BUS2SC(bus); 3885 uint32_t temp; 3886 uint32_t flags; 3887 3888 DPRINTF("\n"); 3889 3890 USB_BUS_LOCK(bus); 3891 3892 flags = bus->hw_power_state; 3893 3894 temp = EOREAD4(sc, EHCI_USBCMD); 3895 3896 temp &= ~(EHCI_CMD_ASE | EHCI_CMD_PSE); 3897 3898 if (flags & (USB_HW_POWER_CONTROL | 3899 USB_HW_POWER_BULK)) { 3900 DPRINTF("Async is active\n"); 3901 temp |= EHCI_CMD_ASE; 3902 } 3903 if (flags & (USB_HW_POWER_INTERRUPT | 3904 USB_HW_POWER_ISOC)) { 3905 DPRINTF("Periodic is active\n"); 3906 temp |= EHCI_CMD_PSE; 3907 } 3908 EOWRITE4(sc, EHCI_USBCMD, temp); 3909 3910 USB_BUS_UNLOCK(bus); 3911 3912 return; 3913} 3914 3915static void 3916ehci_start_dma_delay_second(struct usb_xfer *xfer) 3917{ 3918 struct ehci_softc *sc = EHCI_BUS2SC(xfer->xroot->bus); 3919 3920 DPRINTF("\n"); 3921 3922 /* trigger doorbell */ 3923 ehci_doorbell_async(sc); 3924 3925 /* give the doorbell 4ms */ 3926 usbd_transfer_timeout_ms(xfer, 3927 (void (*)(void *))&usb_dma_delay_done_cb, 4); 3928} 3929 3930/* 3931 * Ring the doorbell twice before freeing any DMA descriptors. Some host 3932 * controllers apparently cache the QH descriptors and need a message 3933 * that the cache needs to be discarded. 3934 */ 3935static void 3936ehci_start_dma_delay(struct usb_xfer *xfer) 3937{ 3938 struct ehci_softc *sc = EHCI_BUS2SC(xfer->xroot->bus); 3939 3940 DPRINTF("\n"); 3941 3942 /* trigger doorbell */ 3943 ehci_doorbell_async(sc); 3944 3945 /* give the doorbell 4ms */ 3946 usbd_transfer_timeout_ms(xfer, 3947 (void (*)(void *))&ehci_start_dma_delay_second, 4); 3948} 3949 3950struct usb_bus_methods ehci_bus_methods = 3951{ 3952 .endpoint_init = ehci_ep_init, 3953 .xfer_setup = ehci_xfer_setup, 3954 .xfer_unsetup = ehci_xfer_unsetup, 3955 .get_dma_delay = ehci_get_dma_delay, 3956 .device_resume = ehci_device_resume, 3957 .device_suspend = ehci_device_suspend, 3958 .set_hw_power = ehci_set_hw_power, 3959 .set_hw_power_sleep = ehci_set_hw_power_sleep, 3960 .roothub_exec = ehci_roothub_exec, 3961 .xfer_poll = ehci_do_poll, 3962 .start_dma_delay = ehci_start_dma_delay, 3963}; 3964