1 /*- 2 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 3 * Copyright (c) 2004 The NetBSD Foundation, Inc. All rights reserved. 4 * Copyright (c) 2004 Lennart Augustsson. All rights reserved. 5 * Copyright (c) 2004 Charles M. Hannum. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 31 * 32 * The EHCI 0.96 spec can be found at 33 * http://developer.intel.com/technology/usb/download/ehci-r096.pdf 34 * The EHCI 1.0 spec can be found at 35 * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 36 * and the USB 2.0 spec at 37 * http://www.usb.org/developers/docs/usb_20.zip 38 * 39 */ 40 41 /* 42 * TODO: 43 * 1) command failures are not recovered correctly 44 */ 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/stdint.h> 50 #include <sys/stddef.h> 51 #include <sys/param.h> 52 #include <sys/queue.h> 53 #include <sys/types.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/bus.h> 57 #include <sys/module.h> 58 #include <sys/lock.h> 59 #include <sys/mutex.h> 60 #include <sys/condvar.h> 61 #include <sys/sysctl.h> 62 #include <sys/sx.h> 63 #include <sys/unistd.h> 64 #include <sys/callout.h> 65 #include <sys/malloc.h> 66 #include <sys/priv.h> 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 71 #define USB_DEBUG_VAR ehcidebug 72 73 #include <dev/usb/usb_core.h> 74 #include <dev/usb/usb_debug.h> 75 #include <dev/usb/usb_busdma.h> 76 #include <dev/usb/usb_process.h> 77 #include <dev/usb/usb_transfer.h> 78 #include <dev/usb/usb_device.h> 79 #include <dev/usb/usb_hub.h> 80 #include <dev/usb/usb_util.h> 81 82 #include <dev/usb/usb_controller.h> 83 #include <dev/usb/usb_bus.h> 84 #include <dev/usb/controller/ehci.h> 85 #include <dev/usb/controller/ehcireg.h> 86 87 #define EHCI_BUS2SC(bus) \ 88 ((ehci_softc_t *)(((uint8_t *)(bus)) - \ 89 ((uint8_t *)&(((ehci_softc_t *)0)->sc_bus)))) 90 91 #ifdef USB_DEBUG 92 static int ehcidebug = 0; 93 static int ehcinohighspeed = 0; 94 static int ehciiaadbug = 0; 95 static int ehcilostintrbug = 0; 96 97 static SYSCTL_NODE(_hw_usb, OID_AUTO, ehci, CTLFLAG_RW, 0, "USB ehci"); 98 SYSCTL_INT(_hw_usb_ehci, OID_AUTO, debug, CTLFLAG_RW, 99 &ehcidebug, 0, "Debug level"); 100 SYSCTL_INT(_hw_usb_ehci, OID_AUTO, no_hs, CTLFLAG_RW, 101 &ehcinohighspeed, 0, "Disable High Speed USB"); 102 SYSCTL_INT(_hw_usb_ehci, OID_AUTO, iaadbug, CTLFLAG_RW, 103 &ehciiaadbug, 0, "Enable doorbell bug workaround"); 104 SYSCTL_INT(_hw_usb_ehci, OID_AUTO, lostintrbug, CTLFLAG_RW, 105 &ehcilostintrbug, 0, "Enable lost interrupt bug workaround"); 106 107 TUNABLE_INT("hw.usb.ehci.debug", &ehcidebug); 108 TUNABLE_INT("hw.usb.ehci.no_hs", &ehcinohighspeed); 109 TUNABLE_INT("hw.usb.ehci.iaadbug", &ehciiaadbug); 110 TUNABLE_INT("hw.usb.ehci.lostintrbug", &ehcilostintrbug); 111 112 static void ehci_dump_regs(ehci_softc_t *sc); 113 static void ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_t *sqh); 114 115 #endif 116 117 #define EHCI_INTR_ENDPT 1 118 119 extern struct usb_bus_methods ehci_bus_methods; 120 extern struct usb_pipe_methods ehci_device_bulk_methods; 121 extern struct usb_pipe_methods ehci_device_ctrl_methods; 122 extern struct usb_pipe_methods ehci_device_intr_methods; 123 extern struct usb_pipe_methods ehci_device_isoc_fs_methods; 124 extern struct usb_pipe_methods ehci_device_isoc_hs_methods; 125 126 static void ehci_do_poll(struct usb_bus *); 127 static void ehci_device_done(struct usb_xfer *, usb_error_t); 128 static uint8_t ehci_check_transfer(struct usb_xfer *); 129 static void ehci_timeout(void *); 130 static void ehci_poll_timeout(void *); 131 132 static void ehci_root_intr(ehci_softc_t *sc); 133 134 struct ehci_std_temp { 135 ehci_softc_t *sc; 136 struct usb_page_cache *pc; 137 ehci_qtd_t *td; 138 ehci_qtd_t *td_next; 139 uint32_t average; 140 uint32_t qtd_status; 141 uint32_t len; 142 uint16_t max_frame_size; 143 uint8_t shortpkt; 144 uint8_t auto_data_toggle; 145 uint8_t setup_alt_next; 146 uint8_t last_frame; 147 }; 148 149 void 150 ehci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb) 151 { 152 ehci_softc_t *sc = EHCI_BUS2SC(bus); 153 uint32_t i; 154 155 cb(bus, &sc->sc_hw.pframes_pc, &sc->sc_hw.pframes_pg, 156 sizeof(uint32_t) * EHCI_FRAMELIST_COUNT, EHCI_FRAMELIST_ALIGN); 157 158 cb(bus, &sc->sc_hw.terminate_pc, &sc->sc_hw.terminate_pg, 159 sizeof(struct ehci_qh_sub), EHCI_QH_ALIGN); 160 161 cb(bus, &sc->sc_hw.async_start_pc, &sc->sc_hw.async_start_pg, 162 sizeof(ehci_qh_t), EHCI_QH_ALIGN); 163 164 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 165 cb(bus, sc->sc_hw.intr_start_pc + i, 166 sc->sc_hw.intr_start_pg + i, 167 sizeof(ehci_qh_t), EHCI_QH_ALIGN); 168 } 169 170 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 171 cb(bus, sc->sc_hw.isoc_hs_start_pc + i, 172 sc->sc_hw.isoc_hs_start_pg + i, 173 sizeof(ehci_itd_t), EHCI_ITD_ALIGN); 174 } 175 176 for (i = 0; i != EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 177 cb(bus, sc->sc_hw.isoc_fs_start_pc + i, 178 sc->sc_hw.isoc_fs_start_pg + i, 179 sizeof(ehci_sitd_t), EHCI_SITD_ALIGN); 180 } 181 } 182 183 usb_error_t 184 ehci_reset(ehci_softc_t *sc) 185 { 186 uint32_t hcr; 187 int i; 188 189 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 190 for (i = 0; i < 100; i++) { 191 usb_pause_mtx(NULL, hz / 128); 192 hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; 193 if (!hcr) { 194 if (sc->sc_flags & (EHCI_SCFLG_SETMODE | EHCI_SCFLG_BIGEMMIO)) { 195 /* 196 * Force USBMODE as requested. Controllers 197 * may have multiple operating modes. 198 */ 199 uint32_t usbmode = EOREAD4(sc, EHCI_USBMODE); 200 if (sc->sc_flags & EHCI_SCFLG_SETMODE) { 201 usbmode = (usbmode &~ EHCI_UM_CM) | EHCI_UM_CM_HOST; 202 device_printf(sc->sc_bus.bdev, 203 "set host controller mode\n"); 204 } 205 if (sc->sc_flags & EHCI_SCFLG_BIGEMMIO) { 206 usbmode = (usbmode &~ EHCI_UM_ES) | EHCI_UM_ES_BE; 207 device_printf(sc->sc_bus.bdev, 208 "set big-endian mode\n"); 209 } 210 EOWRITE4(sc, EHCI_USBMODE, usbmode); 211 } 212 return (0); 213 } 214 } 215 device_printf(sc->sc_bus.bdev, "Reset timeout\n"); 216 return (USB_ERR_IOERROR); 217 } 218 219 static usb_error_t 220 ehci_hcreset(ehci_softc_t *sc) 221 { 222 uint32_t hcr; 223 int i; 224 225 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 226 for (i = 0; i < 100; i++) { 227 usb_pause_mtx(NULL, hz / 128); 228 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 229 if (hcr) 230 break; 231 } 232 if (!hcr) 233 /* 234 * Fall through and try reset anyway even though 235 * Table 2-9 in the EHCI spec says this will result 236 * in undefined behavior. 237 */ 238 device_printf(sc->sc_bus.bdev, "stop timeout\n"); 239 240 return (ehci_reset(sc)); 241 } 242 243 static int 244 ehci_init_sub(struct ehci_softc *sc) 245 { 246 struct usb_page_search buf_res; 247 uint32_t cparams; 248 uint32_t hcr; 249 uint8_t i; 250 251 cparams = EREAD4(sc, EHCI_HCCPARAMS); 252 253 DPRINTF("cparams=0x%x\n", cparams); 254 255 if (EHCI_HCC_64BIT(cparams)) { 256 DPRINTF("HCC uses 64-bit structures\n"); 257 258 /* MUST clear segment register if 64 bit capable */ 259 EWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 260 } 261 262 usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); 263 EOWRITE4(sc, EHCI_PERIODICLISTBASE, buf_res.physaddr); 264 265 usbd_get_page(&sc->sc_hw.async_start_pc, 0, &buf_res); 266 EOWRITE4(sc, EHCI_ASYNCLISTADDR, buf_res.physaddr | EHCI_LINK_QH); 267 268 /* enable interrupts */ 269 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 270 271 /* turn on controller */ 272 EOWRITE4(sc, EHCI_USBCMD, 273 EHCI_CMD_ITC_1 | /* 1 microframes interrupt delay */ 274 (EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_FLS_M) | 275 EHCI_CMD_ASE | 276 EHCI_CMD_PSE | 277 EHCI_CMD_RS); 278 279 /* Take over port ownership */ 280 EOWRITE4(sc, EHCI_CONFIGFLAG, EHCI_CONF_CF); 281 282 for (i = 0; i < 100; i++) { 283 usb_pause_mtx(NULL, hz / 128); 284 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 285 if (!hcr) { 286 break; 287 } 288 } 289 if (hcr) { 290 device_printf(sc->sc_bus.bdev, "Run timeout\n"); 291 return (USB_ERR_IOERROR); 292 } 293 return (USB_ERR_NORMAL_COMPLETION); 294 } 295 296 usb_error_t 297 ehci_init(ehci_softc_t *sc) 298 { 299 struct usb_page_search buf_res; 300 uint32_t version; 301 uint32_t sparams; 302 uint16_t i; 303 uint16_t x; 304 uint16_t y; 305 uint16_t bit; 306 usb_error_t err = 0; 307 308 DPRINTF("start\n"); 309 310 usb_callout_init_mtx(&sc->sc_tmo_pcd, &sc->sc_bus.bus_mtx, 0); 311 usb_callout_init_mtx(&sc->sc_tmo_poll, &sc->sc_bus.bus_mtx, 0); 312 313 sc->sc_offs = EHCI_CAPLENGTH(EREAD4(sc, EHCI_CAPLEN_HCIVERSION)); 314 315 #ifdef USB_DEBUG 316 if (ehciiaadbug) 317 sc->sc_flags |= EHCI_SCFLG_IAADBUG; 318 if (ehcilostintrbug) 319 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 320 if (ehcidebug > 2) { 321 ehci_dump_regs(sc); 322 } 323 #endif 324 325 version = EHCI_HCIVERSION(EREAD4(sc, EHCI_CAPLEN_HCIVERSION)); 326 device_printf(sc->sc_bus.bdev, "EHCI version %x.%x\n", 327 version >> 8, version & 0xff); 328 329 sparams = EREAD4(sc, EHCI_HCSPARAMS); 330 DPRINTF("sparams=0x%x\n", sparams); 331 332 sc->sc_noport = EHCI_HCS_N_PORTS(sparams); 333 sc->sc_bus.usbrev = USB_REV_2_0; 334 335 /* Reset the controller */ 336 DPRINTF("%s: resetting\n", device_get_nameunit(sc->sc_bus.bdev)); 337 338 err = ehci_hcreset(sc); 339 if (err) { 340 device_printf(sc->sc_bus.bdev, "reset timeout\n"); 341 return (err); 342 } 343 /* 344 * use current frame-list-size selection 0: 1024*4 bytes 1: 512*4 345 * bytes 2: 256*4 bytes 3: unknown 346 */ 347 if (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD)) == 3) { 348 device_printf(sc->sc_bus.bdev, "invalid frame-list-size\n"); 349 return (USB_ERR_IOERROR); 350 } 351 /* set up the bus struct */ 352 sc->sc_bus.methods = &ehci_bus_methods; 353 354 sc->sc_eintrs = EHCI_NORMAL_INTRS; 355 356 if (1) { 357 struct ehci_qh_sub *qh; 358 359 usbd_get_page(&sc->sc_hw.terminate_pc, 0, &buf_res); 360 361 qh = buf_res.buffer; 362 363 sc->sc_terminate_self = htohc32(sc, buf_res.physaddr); 364 365 /* init terminate TD */ 366 qh->qtd_next = 367 htohc32(sc, EHCI_LINK_TERMINATE); 368 qh->qtd_altnext = 369 htohc32(sc, EHCI_LINK_TERMINATE); 370 qh->qtd_status = 371 htohc32(sc, EHCI_QTD_HALTED); 372 } 373 374 for (i = 0; i < EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 375 ehci_qh_t *qh; 376 377 usbd_get_page(sc->sc_hw.intr_start_pc + i, 0, &buf_res); 378 379 qh = buf_res.buffer; 380 381 /* initialize page cache pointer */ 382 383 qh->page_cache = sc->sc_hw.intr_start_pc + i; 384 385 /* store a pointer to queue head */ 386 387 sc->sc_intr_p_last[i] = qh; 388 389 qh->qh_self = 390 htohc32(sc, buf_res.physaddr) | 391 htohc32(sc, EHCI_LINK_QH); 392 393 qh->qh_endp = 394 htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH)); 395 qh->qh_endphub = 396 htohc32(sc, EHCI_QH_SET_MULT(1)); 397 qh->qh_curqtd = 0; 398 399 qh->qh_qtd.qtd_next = 400 htohc32(sc, EHCI_LINK_TERMINATE); 401 qh->qh_qtd.qtd_altnext = 402 htohc32(sc, EHCI_LINK_TERMINATE); 403 qh->qh_qtd.qtd_status = 404 htohc32(sc, EHCI_QTD_HALTED); 405 } 406 407 /* 408 * the QHs are arranged to give poll intervals that are 409 * powers of 2 times 1ms 410 */ 411 bit = EHCI_VIRTUAL_FRAMELIST_COUNT / 2; 412 while (bit) { 413 x = bit; 414 while (x & bit) { 415 ehci_qh_t *qh_x; 416 ehci_qh_t *qh_y; 417 418 y = (x ^ bit) | (bit / 2); 419 420 qh_x = sc->sc_intr_p_last[x]; 421 qh_y = sc->sc_intr_p_last[y]; 422 423 /* 424 * the next QH has half the poll interval 425 */ 426 qh_x->qh_link = qh_y->qh_self; 427 428 x++; 429 } 430 bit >>= 1; 431 } 432 433 if (1) { 434 ehci_qh_t *qh; 435 436 qh = sc->sc_intr_p_last[0]; 437 438 /* the last (1ms) QH terminates */ 439 qh->qh_link = htohc32(sc, EHCI_LINK_TERMINATE); 440 } 441 for (i = 0; i < EHCI_VIRTUAL_FRAMELIST_COUNT; i++) { 442 ehci_sitd_t *sitd; 443 ehci_itd_t *itd; 444 445 usbd_get_page(sc->sc_hw.isoc_fs_start_pc + i, 0, &buf_res); 446 447 sitd = buf_res.buffer; 448 449 /* initialize page cache pointer */ 450 451 sitd->page_cache = sc->sc_hw.isoc_fs_start_pc + i; 452 453 /* store a pointer to the transfer descriptor */ 454 455 sc->sc_isoc_fs_p_last[i] = sitd; 456 457 /* initialize full speed isochronous */ 458 459 sitd->sitd_self = 460 htohc32(sc, buf_res.physaddr) | 461 htohc32(sc, EHCI_LINK_SITD); 462 463 sitd->sitd_back = 464 htohc32(sc, EHCI_LINK_TERMINATE); 465 466 sitd->sitd_next = 467 sc->sc_intr_p_last[i | (EHCI_VIRTUAL_FRAMELIST_COUNT / 2)]->qh_self; 468 469 470 usbd_get_page(sc->sc_hw.isoc_hs_start_pc + i, 0, &buf_res); 471 472 itd = buf_res.buffer; 473 474 /* initialize page cache pointer */ 475 476 itd->page_cache = sc->sc_hw.isoc_hs_start_pc + i; 477 478 /* store a pointer to the transfer descriptor */ 479 480 sc->sc_isoc_hs_p_last[i] = itd; 481 482 /* initialize high speed isochronous */ 483 484 itd->itd_self = 485 htohc32(sc, buf_res.physaddr) | 486 htohc32(sc, EHCI_LINK_ITD); 487 488 itd->itd_next = 489 sitd->sitd_self; 490 } 491 492 usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); 493 494 if (1) { 495 uint32_t *pframes; 496 497 pframes = buf_res.buffer; 498 499 /* 500 * execution order: 501 * pframes -> high speed isochronous -> 502 * full speed isochronous -> interrupt QH's 503 */ 504 for (i = 0; i < EHCI_FRAMELIST_COUNT; i++) { 505 pframes[i] = sc->sc_isoc_hs_p_last 506 [i & (EHCI_VIRTUAL_FRAMELIST_COUNT - 1)]->itd_self; 507 } 508 } 509 usbd_get_page(&sc->sc_hw.async_start_pc, 0, &buf_res); 510 511 if (1) { 512 513 ehci_qh_t *qh; 514 515 qh = buf_res.buffer; 516 517 /* initialize page cache pointer */ 518 519 qh->page_cache = &sc->sc_hw.async_start_pc; 520 521 /* store a pointer to the queue head */ 522 523 sc->sc_async_p_last = qh; 524 525 /* init dummy QH that starts the async list */ 526 527 qh->qh_self = 528 htohc32(sc, buf_res.physaddr) | 529 htohc32(sc, EHCI_LINK_QH); 530 531 /* fill the QH */ 532 qh->qh_endp = 533 htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) | EHCI_QH_HRECL); 534 qh->qh_endphub = htohc32(sc, EHCI_QH_SET_MULT(1)); 535 qh->qh_link = qh->qh_self; 536 qh->qh_curqtd = 0; 537 538 /* fill the overlay qTD */ 539 qh->qh_qtd.qtd_next = htohc32(sc, EHCI_LINK_TERMINATE); 540 qh->qh_qtd.qtd_altnext = htohc32(sc, EHCI_LINK_TERMINATE); 541 qh->qh_qtd.qtd_status = htohc32(sc, EHCI_QTD_HALTED); 542 } 543 /* flush all cache into memory */ 544 545 usb_bus_mem_flush_all(&sc->sc_bus, &ehci_iterate_hw_softc); 546 547 #ifdef USB_DEBUG 548 if (ehcidebug) { 549 ehci_dump_sqh(sc, sc->sc_async_p_last); 550 } 551 #endif 552 553 /* finial setup */ 554 err = ehci_init_sub(sc); 555 556 if (!err) { 557 /* catch any lost interrupts */ 558 ehci_do_poll(&sc->sc_bus); 559 } 560 return (err); 561 } 562 563 /* 564 * shut down the controller when the system is going down 565 */ 566 void 567 ehci_detach(ehci_softc_t *sc) 568 { 569 USB_BUS_LOCK(&sc->sc_bus); 570 571 usb_callout_stop(&sc->sc_tmo_pcd); 572 usb_callout_stop(&sc->sc_tmo_poll); 573 574 EOWRITE4(sc, EHCI_USBINTR, 0); 575 USB_BUS_UNLOCK(&sc->sc_bus); 576 577 if (ehci_hcreset(sc)) { 578 DPRINTF("reset failed!\n"); 579 } 580 581 /* XXX let stray task complete */ 582 usb_pause_mtx(NULL, hz / 20); 583 584 usb_callout_drain(&sc->sc_tmo_pcd); 585 usb_callout_drain(&sc->sc_tmo_poll); 586 } 587 588 static void 589 ehci_suspend(ehci_softc_t *sc) 590 { 591 DPRINTF("stopping the HC\n"); 592 593 /* reset HC */ 594 ehci_hcreset(sc); 595 } 596 597 static void 598 ehci_resume(ehci_softc_t *sc) 599 { 600 /* reset HC */ 601 ehci_hcreset(sc); 602 603 /* setup HC */ 604 ehci_init_sub(sc); 605 606 /* catch any lost interrupts */ 607 ehci_do_poll(&sc->sc_bus); 608 } 609 610 #ifdef USB_DEBUG 611 static void 612 ehci_dump_regs(ehci_softc_t *sc) 613 { 614 uint32_t i; 615 616 i = EOREAD4(sc, EHCI_USBCMD); 617 printf("cmd=0x%08x\n", i); 618 619 if (i & EHCI_CMD_ITC_1) 620 printf(" EHCI_CMD_ITC_1\n"); 621 if (i & EHCI_CMD_ITC_2) 622 printf(" EHCI_CMD_ITC_2\n"); 623 if (i & EHCI_CMD_ITC_4) 624 printf(" EHCI_CMD_ITC_4\n"); 625 if (i & EHCI_CMD_ITC_8) 626 printf(" EHCI_CMD_ITC_8\n"); 627 if (i & EHCI_CMD_ITC_16) 628 printf(" EHCI_CMD_ITC_16\n"); 629 if (i & EHCI_CMD_ITC_32) 630 printf(" EHCI_CMD_ITC_32\n"); 631 if (i & EHCI_CMD_ITC_64) 632 printf(" EHCI_CMD_ITC_64\n"); 633 if (i & EHCI_CMD_ASPME) 634 printf(" EHCI_CMD_ASPME\n"); 635 if (i & EHCI_CMD_ASPMC) 636 printf(" EHCI_CMD_ASPMC\n"); 637 if (i & EHCI_CMD_LHCR) 638 printf(" EHCI_CMD_LHCR\n"); 639 if (i & EHCI_CMD_IAAD) 640 printf(" EHCI_CMD_IAAD\n"); 641 if (i & EHCI_CMD_ASE) 642 printf(" EHCI_CMD_ASE\n"); 643 if (i & EHCI_CMD_PSE) 644 printf(" EHCI_CMD_PSE\n"); 645 if (i & EHCI_CMD_FLS_M) 646 printf(" EHCI_CMD_FLS_M\n"); 647 if (i & EHCI_CMD_HCRESET) 648 printf(" EHCI_CMD_HCRESET\n"); 649 if (i & EHCI_CMD_RS) 650 printf(" EHCI_CMD_RS\n"); 651 652 i = EOREAD4(sc, EHCI_USBSTS); 653 654 printf("sts=0x%08x\n", i); 655 656 if (i & EHCI_STS_ASS) 657 printf(" EHCI_STS_ASS\n"); 658 if (i & EHCI_STS_PSS) 659 printf(" EHCI_STS_PSS\n"); 660 if (i & EHCI_STS_REC) 661 printf(" EHCI_STS_REC\n"); 662 if (i & EHCI_STS_HCH) 663 printf(" EHCI_STS_HCH\n"); 664 if (i & EHCI_STS_IAA) 665 printf(" EHCI_STS_IAA\n"); 666 if (i & EHCI_STS_HSE) 667 printf(" EHCI_STS_HSE\n"); 668 if (i & EHCI_STS_FLR) 669 printf(" EHCI_STS_FLR\n"); 670 if (i & EHCI_STS_PCD) 671 printf(" EHCI_STS_PCD\n"); 672 if (i & EHCI_STS_ERRINT) 673 printf(" EHCI_STS_ERRINT\n"); 674 if (i & EHCI_STS_INT) 675 printf(" EHCI_STS_INT\n"); 676 677 printf("ien=0x%08x\n", 678 EOREAD4(sc, EHCI_USBINTR)); 679 printf("frindex=0x%08x ctrdsegm=0x%08x periodic=0x%08x async=0x%08x\n", 680 EOREAD4(sc, EHCI_FRINDEX), 681 EOREAD4(sc, EHCI_CTRLDSSEGMENT), 682 EOREAD4(sc, EHCI_PERIODICLISTBASE), 683 EOREAD4(sc, EHCI_ASYNCLISTADDR)); 684 for (i = 1; i <= sc->sc_noport; i++) { 685 printf("port %d status=0x%08x\n", i, 686 EOREAD4(sc, EHCI_PORTSC(i))); 687 } 688 } 689 690 static void 691 ehci_dump_link(ehci_softc_t *sc, uint32_t link, int type) 692 { 693 link = hc32toh(sc, link); 694 printf("0x%08x", link); 695 if (link & EHCI_LINK_TERMINATE) 696 printf("<T>"); 697 else { 698 printf("<"); 699 if (type) { 700 switch (EHCI_LINK_TYPE(link)) { 701 case EHCI_LINK_ITD: 702 printf("ITD"); 703 break; 704 case EHCI_LINK_QH: 705 printf("QH"); 706 break; 707 case EHCI_LINK_SITD: 708 printf("SITD"); 709 break; 710 case EHCI_LINK_FSTN: 711 printf("FSTN"); 712 break; 713 } 714 } 715 printf(">"); 716 } 717 } 718 719 static void 720 ehci_dump_qtd(ehci_softc_t *sc, ehci_qtd_t *qtd) 721 { 722 uint32_t s; 723 724 printf(" next="); 725 ehci_dump_link(sc, qtd->qtd_next, 0); 726 printf(" altnext="); 727 ehci_dump_link(sc, qtd->qtd_altnext, 0); 728 printf("\n"); 729 s = hc32toh(sc, qtd->qtd_status); 730 printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n", 731 s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s), 732 EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s)); 733 printf(" cerr=%d pid=%d stat=%s%s%s%s%s%s%s%s\n", 734 EHCI_QTD_GET_CERR(s), EHCI_QTD_GET_PID(s), 735 (s & EHCI_QTD_ACTIVE) ? "ACTIVE" : "NOT_ACTIVE", 736 (s & EHCI_QTD_HALTED) ? "-HALTED" : "", 737 (s & EHCI_QTD_BUFERR) ? "-BUFERR" : "", 738 (s & EHCI_QTD_BABBLE) ? "-BABBLE" : "", 739 (s & EHCI_QTD_XACTERR) ? "-XACTERR" : "", 740 (s & EHCI_QTD_MISSEDMICRO) ? "-MISSED" : "", 741 (s & EHCI_QTD_SPLITXSTATE) ? "-SPLIT" : "", 742 (s & EHCI_QTD_PINGSTATE) ? "-PING" : ""); 743 744 for (s = 0; s < 5; s++) { 745 printf(" buffer[%d]=0x%08x\n", s, 746 hc32toh(sc, qtd->qtd_buffer[s])); 747 } 748 for (s = 0; s < 5; s++) { 749 printf(" buffer_hi[%d]=0x%08x\n", s, 750 hc32toh(sc, qtd->qtd_buffer_hi[s])); 751 } 752 } 753 754 static uint8_t 755 ehci_dump_sqtd(ehci_softc_t *sc, ehci_qtd_t *sqtd) 756 { 757 uint8_t temp; 758 759 usb_pc_cpu_invalidate(sqtd->page_cache); 760 printf("QTD(%p) at 0x%08x:\n", sqtd, hc32toh(sc, sqtd->qtd_self)); 761 ehci_dump_qtd(sc, sqtd); 762 temp = (sqtd->qtd_next & htohc32(sc, EHCI_LINK_TERMINATE)) ? 1 : 0; 763 return (temp); 764 } 765 766 static void 767 ehci_dump_sqtds(ehci_softc_t *sc, ehci_qtd_t *sqtd) 768 { 769 uint16_t i; 770 uint8_t stop; 771 772 stop = 0; 773 for (i = 0; sqtd && (i < 20) && !stop; sqtd = sqtd->obj_next, i++) { 774 stop = ehci_dump_sqtd(sc, sqtd); 775 } 776 if (sqtd) { 777 printf("dump aborted, too many TDs\n"); 778 } 779 } 780 781 static void 782 ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_t *qh) 783 { 784 uint32_t endp; 785 uint32_t endphub; 786 787 usb_pc_cpu_invalidate(qh->page_cache); 788 printf("QH(%p) at 0x%08x:\n", qh, hc32toh(sc, qh->qh_self) & ~0x1F); 789 printf(" link="); 790 ehci_dump_link(sc, qh->qh_link, 1); 791 printf("\n"); 792 endp = hc32toh(sc, qh->qh_endp); 793 printf(" endp=0x%08x\n", endp); 794 printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n", 795 EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp), 796 EHCI_QH_GET_ENDPT(endp), EHCI_QH_GET_EPS(endp), 797 EHCI_QH_GET_DTC(endp), EHCI_QH_GET_HRECL(endp)); 798 printf(" mpl=0x%x ctl=%d nrl=%d\n", 799 EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp), 800 EHCI_QH_GET_NRL(endp)); 801 endphub = hc32toh(sc, qh->qh_endphub); 802 printf(" endphub=0x%08x\n", endphub); 803 printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n", 804 EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub), 805 EHCI_QH_GET_HUBA(endphub), EHCI_QH_GET_PORT(endphub), 806 EHCI_QH_GET_MULT(endphub)); 807 printf(" curqtd="); 808 ehci_dump_link(sc, qh->qh_curqtd, 0); 809 printf("\n"); 810 printf("Overlay qTD:\n"); 811 ehci_dump_qtd(sc, (void *)&qh->qh_qtd); 812 } 813 814 static void 815 ehci_dump_sitd(ehci_softc_t *sc, ehci_sitd_t *sitd) 816 { 817 usb_pc_cpu_invalidate(sitd->page_cache); 818 printf("SITD(%p) at 0x%08x\n", sitd, hc32toh(sc, sitd->sitd_self) & ~0x1F); 819 printf(" next=0x%08x\n", hc32toh(sc, sitd->sitd_next)); 820 printf(" portaddr=0x%08x dir=%s addr=%d endpt=0x%x port=0x%x huba=0x%x\n", 821 hc32toh(sc, sitd->sitd_portaddr), 822 (sitd->sitd_portaddr & htohc32(sc, EHCI_SITD_SET_DIR_IN)) 823 ? "in" : "out", 824 EHCI_SITD_GET_ADDR(hc32toh(sc, sitd->sitd_portaddr)), 825 EHCI_SITD_GET_ENDPT(hc32toh(sc, sitd->sitd_portaddr)), 826 EHCI_SITD_GET_PORT(hc32toh(sc, sitd->sitd_portaddr)), 827 EHCI_SITD_GET_HUBA(hc32toh(sc, sitd->sitd_portaddr))); 828 printf(" mask=0x%08x\n", hc32toh(sc, sitd->sitd_mask)); 829 printf(" status=0x%08x <%s> len=0x%x\n", hc32toh(sc, sitd->sitd_status), 830 (sitd->sitd_status & htohc32(sc, EHCI_SITD_ACTIVE)) ? "ACTIVE" : "", 831 EHCI_SITD_GET_LEN(hc32toh(sc, sitd->sitd_status))); 832 printf(" back=0x%08x, bp=0x%08x,0x%08x,0x%08x,0x%08x\n", 833 hc32toh(sc, sitd->sitd_back), 834 hc32toh(sc, sitd->sitd_bp[0]), 835 hc32toh(sc, sitd->sitd_bp[1]), 836 hc32toh(sc, sitd->sitd_bp_hi[0]), 837 hc32toh(sc, sitd->sitd_bp_hi[1])); 838 } 839 840 static void 841 ehci_dump_itd(ehci_softc_t *sc, ehci_itd_t *itd) 842 { 843 usb_pc_cpu_invalidate(itd->page_cache); 844 printf("ITD(%p) at 0x%08x\n", itd, hc32toh(sc, itd->itd_self) & ~0x1F); 845 printf(" next=0x%08x\n", hc32toh(sc, itd->itd_next)); 846 printf(" status[0]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[0]), 847 (itd->itd_status[0] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 848 printf(" status[1]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[1]), 849 (itd->itd_status[1] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 850 printf(" status[2]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[2]), 851 (itd->itd_status[2] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 852 printf(" status[3]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[3]), 853 (itd->itd_status[3] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 854 printf(" status[4]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[4]), 855 (itd->itd_status[4] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 856 printf(" status[5]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[5]), 857 (itd->itd_status[5] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 858 printf(" status[6]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[6]), 859 (itd->itd_status[6] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 860 printf(" status[7]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[7]), 861 (itd->itd_status[7] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" : ""); 862 printf(" bp[0]=0x%08x\n", hc32toh(sc, itd->itd_bp[0])); 863 printf(" addr=0x%02x; endpt=0x%01x\n", 864 EHCI_ITD_GET_ADDR(hc32toh(sc, itd->itd_bp[0])), 865 EHCI_ITD_GET_ENDPT(hc32toh(sc, itd->itd_bp[0]))); 866 printf(" bp[1]=0x%08x\n", hc32toh(sc, itd->itd_bp[1])); 867 printf(" dir=%s; mpl=0x%02x\n", 868 (hc32toh(sc, itd->itd_bp[1]) & EHCI_ITD_SET_DIR_IN) ? "in" : "out", 869 EHCI_ITD_GET_MPL(hc32toh(sc, itd->itd_bp[1]))); 870 printf(" bp[2..6]=0x%08x,0x%08x,0x%08x,0x%08x,0x%08x\n", 871 hc32toh(sc, itd->itd_bp[2]), 872 hc32toh(sc, itd->itd_bp[3]), 873 hc32toh(sc, itd->itd_bp[4]), 874 hc32toh(sc, itd->itd_bp[5]), 875 hc32toh(sc, itd->itd_bp[6])); 876 printf(" bp_hi=0x%08x,0x%08x,0x%08x,0x%08x,\n" 877 " 0x%08x,0x%08x,0x%08x\n", 878 hc32toh(sc, itd->itd_bp_hi[0]), 879 hc32toh(sc, itd->itd_bp_hi[1]), 880 hc32toh(sc, itd->itd_bp_hi[2]), 881 hc32toh(sc, itd->itd_bp_hi[3]), 882 hc32toh(sc, itd->itd_bp_hi[4]), 883 hc32toh(sc, itd->itd_bp_hi[5]), 884 hc32toh(sc, itd->itd_bp_hi[6])); 885 } 886 887 static void 888 ehci_dump_isoc(ehci_softc_t *sc) 889 { 890 ehci_itd_t *itd; 891 ehci_sitd_t *sitd; 892 uint16_t max = 1000; 893 uint16_t pos; 894 895 pos = (EOREAD4(sc, EHCI_FRINDEX) / 8) & 896 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 897 898 printf("%s: isochronous dump from frame 0x%03x:\n", 899 __FUNCTION__, pos); 900 901 itd = sc->sc_isoc_hs_p_last[pos]; 902 sitd = sc->sc_isoc_fs_p_last[pos]; 903 904 while (itd && max && max--) { 905 ehci_dump_itd(sc, itd); 906 itd = itd->prev; 907 } 908 909 while (sitd && max && max--) { 910 ehci_dump_sitd(sc, sitd); 911 sitd = sitd->prev; 912 } 913 } 914 915 #endif 916 917 static void 918 ehci_transfer_intr_enqueue(struct usb_xfer *xfer) 919 { 920 /* check for early completion */ 921 if (ehci_check_transfer(xfer)) { 922 return; 923 } 924 /* put transfer on interrupt queue */ 925 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 926 927 /* start timeout, if any */ 928 if (xfer->timeout != 0) { 929 usbd_transfer_timeout_ms(xfer, &ehci_timeout, xfer->timeout); 930 } 931 } 932 933 #define EHCI_APPEND_FS_TD(std,last) (last) = _ehci_append_fs_td(std,last) 934 static ehci_sitd_t * 935 _ehci_append_fs_td(ehci_sitd_t *std, ehci_sitd_t *last) 936 { 937 DPRINTFN(11, "%p to %p\n", std, last); 938 939 /* (sc->sc_bus.mtx) must be locked */ 940 941 std->next = last->next; 942 std->sitd_next = last->sitd_next; 943 944 std->prev = last; 945 946 usb_pc_cpu_flush(std->page_cache); 947 948 /* 949 * the last->next->prev is never followed: std->next->prev = std; 950 */ 951 last->next = std; 952 last->sitd_next = std->sitd_self; 953 954 usb_pc_cpu_flush(last->page_cache); 955 956 return (std); 957 } 958 959 #define EHCI_APPEND_HS_TD(std,last) (last) = _ehci_append_hs_td(std,last) 960 static ehci_itd_t * 961 _ehci_append_hs_td(ehci_itd_t *std, ehci_itd_t *last) 962 { 963 DPRINTFN(11, "%p to %p\n", std, last); 964 965 /* (sc->sc_bus.mtx) must be locked */ 966 967 std->next = last->next; 968 std->itd_next = last->itd_next; 969 970 std->prev = last; 971 972 usb_pc_cpu_flush(std->page_cache); 973 974 /* 975 * the last->next->prev is never followed: std->next->prev = std; 976 */ 977 last->next = std; 978 last->itd_next = std->itd_self; 979 980 usb_pc_cpu_flush(last->page_cache); 981 982 return (std); 983 } 984 985 #define EHCI_APPEND_QH(sqh,last) (last) = _ehci_append_qh(sqh,last) 986 static ehci_qh_t * 987 _ehci_append_qh(ehci_qh_t *sqh, ehci_qh_t *last) 988 { 989 DPRINTFN(11, "%p to %p\n", sqh, last); 990 991 if (sqh->prev != NULL) { 992 /* should not happen */ 993 DPRINTFN(0, "QH already linked!\n"); 994 return (last); 995 } 996 /* (sc->sc_bus.mtx) must be locked */ 997 998 sqh->next = last->next; 999 sqh->qh_link = last->qh_link; 1000 1001 sqh->prev = last; 1002 1003 usb_pc_cpu_flush(sqh->page_cache); 1004 1005 /* 1006 * the last->next->prev is never followed: sqh->next->prev = sqh; 1007 */ 1008 1009 last->next = sqh; 1010 last->qh_link = sqh->qh_self; 1011 1012 usb_pc_cpu_flush(last->page_cache); 1013 1014 return (sqh); 1015 } 1016 1017 #define EHCI_REMOVE_FS_TD(std,last) (last) = _ehci_remove_fs_td(std,last) 1018 static ehci_sitd_t * 1019 _ehci_remove_fs_td(ehci_sitd_t *std, ehci_sitd_t *last) 1020 { 1021 DPRINTFN(11, "%p from %p\n", std, last); 1022 1023 /* (sc->sc_bus.mtx) must be locked */ 1024 1025 std->prev->next = std->next; 1026 std->prev->sitd_next = std->sitd_next; 1027 1028 usb_pc_cpu_flush(std->prev->page_cache); 1029 1030 if (std->next) { 1031 std->next->prev = std->prev; 1032 usb_pc_cpu_flush(std->next->page_cache); 1033 } 1034 return ((last == std) ? std->prev : last); 1035 } 1036 1037 #define EHCI_REMOVE_HS_TD(std,last) (last) = _ehci_remove_hs_td(std,last) 1038 static ehci_itd_t * 1039 _ehci_remove_hs_td(ehci_itd_t *std, ehci_itd_t *last) 1040 { 1041 DPRINTFN(11, "%p from %p\n", std, last); 1042 1043 /* (sc->sc_bus.mtx) must be locked */ 1044 1045 std->prev->next = std->next; 1046 std->prev->itd_next = std->itd_next; 1047 1048 usb_pc_cpu_flush(std->prev->page_cache); 1049 1050 if (std->next) { 1051 std->next->prev = std->prev; 1052 usb_pc_cpu_flush(std->next->page_cache); 1053 } 1054 return ((last == std) ? std->prev : last); 1055 } 1056 1057 #define EHCI_REMOVE_QH(sqh,last) (last) = _ehci_remove_qh(sqh,last) 1058 static ehci_qh_t * 1059 _ehci_remove_qh(ehci_qh_t *sqh, ehci_qh_t *last) 1060 { 1061 DPRINTFN(11, "%p from %p\n", sqh, last); 1062 1063 /* (sc->sc_bus.mtx) must be locked */ 1064 1065 /* only remove if not removed from a queue */ 1066 if (sqh->prev) { 1067 1068 sqh->prev->next = sqh->next; 1069 sqh->prev->qh_link = sqh->qh_link; 1070 1071 usb_pc_cpu_flush(sqh->prev->page_cache); 1072 1073 if (sqh->next) { 1074 sqh->next->prev = sqh->prev; 1075 usb_pc_cpu_flush(sqh->next->page_cache); 1076 } 1077 last = ((last == sqh) ? sqh->prev : last); 1078 1079 sqh->prev = 0; 1080 1081 usb_pc_cpu_flush(sqh->page_cache); 1082 } 1083 return (last); 1084 } 1085 1086 static void 1087 ehci_data_toggle_update(struct usb_xfer *xfer, uint16_t actlen, uint16_t xlen) 1088 { 1089 uint16_t rem; 1090 uint8_t dt; 1091 1092 /* count number of full packets */ 1093 dt = (actlen / xfer->max_packet_size) & 1; 1094 1095 /* compute remainder */ 1096 rem = actlen % xfer->max_packet_size; 1097 1098 if (rem > 0) 1099 dt ^= 1; /* short packet at the end */ 1100 else if (actlen != xlen) 1101 dt ^= 1; /* zero length packet at the end */ 1102 else if (xlen == 0) 1103 dt ^= 1; /* zero length transfer */ 1104 1105 xfer->endpoint->toggle_next ^= dt; 1106 } 1107 1108 static usb_error_t 1109 ehci_non_isoc_done_sub(struct usb_xfer *xfer) 1110 { 1111 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1112 ehci_qtd_t *td; 1113 ehci_qtd_t *td_alt_next; 1114 uint32_t status; 1115 uint16_t len; 1116 1117 td = xfer->td_transfer_cache; 1118 td_alt_next = td->alt_next; 1119 1120 if (xfer->aframes != xfer->nframes) { 1121 usbd_xfer_set_frame_len(xfer, xfer->aframes, 0); 1122 } 1123 while (1) { 1124 1125 usb_pc_cpu_invalidate(td->page_cache); 1126 status = hc32toh(sc, td->qtd_status); 1127 1128 len = EHCI_QTD_GET_BYTES(status); 1129 1130 /* 1131 * Verify the status length and 1132 * add the length to "frlengths[]": 1133 */ 1134 if (len > td->len) { 1135 /* should not happen */ 1136 DPRINTF("Invalid status length, " 1137 "0x%04x/0x%04x bytes\n", len, td->len); 1138 status |= EHCI_QTD_HALTED; 1139 } else if (xfer->aframes != xfer->nframes) { 1140 xfer->frlengths[xfer->aframes] += td->len - len; 1141 /* manually update data toggle */ 1142 ehci_data_toggle_update(xfer, td->len - len, td->len); 1143 } 1144 1145 /* Check for last transfer */ 1146 if (((void *)td) == xfer->td_transfer_last) { 1147 td = NULL; 1148 break; 1149 } 1150 /* Check for transfer error */ 1151 if (status & EHCI_QTD_HALTED) { 1152 /* the transfer is finished */ 1153 td = NULL; 1154 break; 1155 } 1156 /* Check for short transfer */ 1157 if (len > 0) { 1158 if (xfer->flags_int.short_frames_ok) { 1159 /* follow alt next */ 1160 td = td->alt_next; 1161 } else { 1162 /* the transfer is finished */ 1163 td = NULL; 1164 } 1165 break; 1166 } 1167 td = td->obj_next; 1168 1169 if (td->alt_next != td_alt_next) { 1170 /* this USB frame is complete */ 1171 break; 1172 } 1173 } 1174 1175 /* update transfer cache */ 1176 1177 xfer->td_transfer_cache = td; 1178 1179 #ifdef USB_DEBUG 1180 if (status & EHCI_QTD_STATERRS) { 1181 DPRINTFN(11, "error, addr=%d, endpt=0x%02x, frame=0x%02x" 1182 "status=%s%s%s%s%s%s%s%s\n", 1183 xfer->address, xfer->endpointno, xfer->aframes, 1184 (status & EHCI_QTD_ACTIVE) ? "[ACTIVE]" : "[NOT_ACTIVE]", 1185 (status & EHCI_QTD_HALTED) ? "[HALTED]" : "", 1186 (status & EHCI_QTD_BUFERR) ? "[BUFERR]" : "", 1187 (status & EHCI_QTD_BABBLE) ? "[BABBLE]" : "", 1188 (status & EHCI_QTD_XACTERR) ? "[XACTERR]" : "", 1189 (status & EHCI_QTD_MISSEDMICRO) ? "[MISSED]" : "", 1190 (status & EHCI_QTD_SPLITXSTATE) ? "[SPLIT]" : "", 1191 (status & EHCI_QTD_PINGSTATE) ? "[PING]" : ""); 1192 } 1193 #endif 1194 1195 return ((status & EHCI_QTD_HALTED) ? 1196 USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION); 1197 } 1198 1199 static void 1200 ehci_non_isoc_done(struct usb_xfer *xfer) 1201 { 1202 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1203 ehci_qh_t *qh; 1204 uint32_t status; 1205 usb_error_t err = 0; 1206 1207 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 1208 xfer, xfer->endpoint); 1209 1210 #ifdef USB_DEBUG 1211 if (ehcidebug > 10) { 1212 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1213 1214 ehci_dump_sqtds(sc, xfer->td_transfer_first); 1215 } 1216 #endif 1217 1218 /* extract data toggle directly from the QH's overlay area */ 1219 1220 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1221 1222 usb_pc_cpu_invalidate(qh->page_cache); 1223 1224 status = hc32toh(sc, qh->qh_qtd.qtd_status); 1225 1226 /* reset scanner */ 1227 1228 xfer->td_transfer_cache = xfer->td_transfer_first; 1229 1230 if (xfer->flags_int.control_xfr) { 1231 1232 if (xfer->flags_int.control_hdr) { 1233 1234 err = ehci_non_isoc_done_sub(xfer); 1235 } 1236 xfer->aframes = 1; 1237 1238 if (xfer->td_transfer_cache == NULL) { 1239 goto done; 1240 } 1241 } 1242 while (xfer->aframes != xfer->nframes) { 1243 1244 err = ehci_non_isoc_done_sub(xfer); 1245 xfer->aframes++; 1246 1247 if (xfer->td_transfer_cache == NULL) { 1248 goto done; 1249 } 1250 } 1251 1252 if (xfer->flags_int.control_xfr && 1253 !xfer->flags_int.control_act) { 1254 1255 err = ehci_non_isoc_done_sub(xfer); 1256 } 1257 done: 1258 ehci_device_done(xfer, err); 1259 } 1260 1261 /*------------------------------------------------------------------------* 1262 * ehci_check_transfer 1263 * 1264 * Return values: 1265 * 0: USB transfer is not finished 1266 * Else: USB transfer is finished 1267 *------------------------------------------------------------------------*/ 1268 static uint8_t 1269 ehci_check_transfer(struct usb_xfer *xfer) 1270 { 1271 struct usb_pipe_methods *methods = xfer->endpoint->methods; 1272 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 1273 1274 uint32_t status; 1275 1276 DPRINTFN(13, "xfer=%p checking transfer\n", xfer); 1277 1278 if (methods == &ehci_device_isoc_fs_methods) { 1279 ehci_sitd_t *td; 1280 1281 /* isochronous full speed transfer */ 1282 1283 td = xfer->td_transfer_last; 1284 usb_pc_cpu_invalidate(td->page_cache); 1285 status = hc32toh(sc, td->sitd_status); 1286 1287 /* also check if first is complete */ 1288 1289 td = xfer->td_transfer_first; 1290 usb_pc_cpu_invalidate(td->page_cache); 1291 status |= hc32toh(sc, td->sitd_status); 1292 1293 if (!(status & EHCI_SITD_ACTIVE)) { 1294 ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION); 1295 goto transferred; 1296 } 1297 } else if (methods == &ehci_device_isoc_hs_methods) { 1298 ehci_itd_t *td; 1299 1300 /* isochronous high speed transfer */ 1301 1302 /* check last transfer */ 1303 td = xfer->td_transfer_last; 1304 usb_pc_cpu_invalidate(td->page_cache); 1305 status = td->itd_status[0]; 1306 status |= td->itd_status[1]; 1307 status |= td->itd_status[2]; 1308 status |= td->itd_status[3]; 1309 status |= td->itd_status[4]; 1310 status |= td->itd_status[5]; 1311 status |= td->itd_status[6]; 1312 status |= td->itd_status[7]; 1313 1314 /* also check first transfer */ 1315 td = xfer->td_transfer_first; 1316 usb_pc_cpu_invalidate(td->page_cache); 1317 status |= td->itd_status[0]; 1318 status |= td->itd_status[1]; 1319 status |= td->itd_status[2]; 1320 status |= td->itd_status[3]; 1321 status |= td->itd_status[4]; 1322 status |= td->itd_status[5]; 1323 status |= td->itd_status[6]; 1324 status |= td->itd_status[7]; 1325 1326 /* if no transactions are active we continue */ 1327 if (!(status & htohc32(sc, EHCI_ITD_ACTIVE))) { 1328 ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION); 1329 goto transferred; 1330 } 1331 } else { 1332 ehci_qtd_t *td; 1333 ehci_qh_t *qh; 1334 1335 /* non-isochronous transfer */ 1336 1337 /* 1338 * check whether there is an error somewhere in the middle, 1339 * or whether there was a short packet (SPD and not ACTIVE) 1340 */ 1341 td = xfer->td_transfer_cache; 1342 1343 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1344 1345 usb_pc_cpu_invalidate(qh->page_cache); 1346 1347 status = hc32toh(sc, qh->qh_qtd.qtd_status); 1348 if (status & EHCI_QTD_ACTIVE) { 1349 /* transfer is pending */ 1350 goto done; 1351 } 1352 1353 while (1) { 1354 usb_pc_cpu_invalidate(td->page_cache); 1355 status = hc32toh(sc, td->qtd_status); 1356 1357 /* 1358 * Check if there is an active TD which 1359 * indicates that the transfer isn't done. 1360 */ 1361 if (status & EHCI_QTD_ACTIVE) { 1362 /* update cache */ 1363 xfer->td_transfer_cache = td; 1364 goto done; 1365 } 1366 /* 1367 * last transfer descriptor makes the transfer done 1368 */ 1369 if (((void *)td) == xfer->td_transfer_last) { 1370 break; 1371 } 1372 /* 1373 * any kind of error makes the transfer done 1374 */ 1375 if (status & EHCI_QTD_HALTED) { 1376 break; 1377 } 1378 /* 1379 * if there is no alternate next transfer, a short 1380 * packet also makes the transfer done 1381 */ 1382 if (EHCI_QTD_GET_BYTES(status)) { 1383 if (xfer->flags_int.short_frames_ok) { 1384 /* follow alt next */ 1385 if (td->alt_next) { 1386 td = td->alt_next; 1387 continue; 1388 } 1389 } 1390 /* transfer is done */ 1391 break; 1392 } 1393 td = td->obj_next; 1394 } 1395 ehci_non_isoc_done(xfer); 1396 goto transferred; 1397 } 1398 1399 done: 1400 DPRINTFN(13, "xfer=%p is still active\n", xfer); 1401 return (0); 1402 1403 transferred: 1404 return (1); 1405 } 1406 1407 static void 1408 ehci_pcd_enable(ehci_softc_t *sc) 1409 { 1410 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1411 1412 sc->sc_eintrs |= EHCI_STS_PCD; 1413 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1414 1415 /* acknowledge any PCD interrupt */ 1416 EOWRITE4(sc, EHCI_USBSTS, EHCI_STS_PCD); 1417 1418 ehci_root_intr(sc); 1419 } 1420 1421 static void 1422 ehci_interrupt_poll(ehci_softc_t *sc) 1423 { 1424 struct usb_xfer *xfer; 1425 1426 repeat: 1427 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 1428 /* 1429 * check if transfer is transferred 1430 */ 1431 if (ehci_check_transfer(xfer)) { 1432 /* queue has been modified */ 1433 goto repeat; 1434 } 1435 } 1436 } 1437 1438 /* 1439 * Some EHCI chips from VIA / ATI seem to trigger interrupts before 1440 * writing back the qTD status, or miss signalling occasionally under 1441 * heavy load. If the host machine is too fast, we can miss 1442 * transaction completion - when we scan the active list the 1443 * transaction still seems to be active. This generally exhibits 1444 * itself as a umass stall that never recovers. 1445 * 1446 * We work around this behaviour by setting up this callback after any 1447 * softintr that completes with transactions still pending, giving us 1448 * another chance to check for completion after the writeback has 1449 * taken place. 1450 */ 1451 static void 1452 ehci_poll_timeout(void *arg) 1453 { 1454 ehci_softc_t *sc = arg; 1455 1456 DPRINTFN(3, "\n"); 1457 ehci_interrupt_poll(sc); 1458 } 1459 1460 /*------------------------------------------------------------------------* 1461 * ehci_interrupt - EHCI interrupt handler 1462 * 1463 * NOTE: Do not access "sc->sc_bus.bdev" inside the interrupt handler, 1464 * hence the interrupt handler will be setup before "sc->sc_bus.bdev" 1465 * is present ! 1466 *------------------------------------------------------------------------*/ 1467 void 1468 ehci_interrupt(ehci_softc_t *sc) 1469 { 1470 uint32_t status; 1471 1472 USB_BUS_LOCK(&sc->sc_bus); 1473 1474 DPRINTFN(16, "real interrupt\n"); 1475 1476 #ifdef USB_DEBUG 1477 if (ehcidebug > 15) { 1478 ehci_dump_regs(sc); 1479 } 1480 #endif 1481 1482 status = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 1483 if (status == 0) { 1484 /* the interrupt was not for us */ 1485 goto done; 1486 } 1487 if (!(status & sc->sc_eintrs)) { 1488 goto done; 1489 } 1490 EOWRITE4(sc, EHCI_USBSTS, status); /* acknowledge */ 1491 1492 status &= sc->sc_eintrs; 1493 1494 if (status & EHCI_STS_HSE) { 1495 printf("%s: unrecoverable error, " 1496 "controller halted\n", __FUNCTION__); 1497 #ifdef USB_DEBUG 1498 ehci_dump_regs(sc); 1499 ehci_dump_isoc(sc); 1500 #endif 1501 } 1502 if (status & EHCI_STS_PCD) { 1503 /* 1504 * Disable PCD interrupt for now, because it will be 1505 * on until the port has been reset. 1506 */ 1507 sc->sc_eintrs &= ~EHCI_STS_PCD; 1508 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1509 1510 ehci_root_intr(sc); 1511 1512 /* do not allow RHSC interrupts > 1 per second */ 1513 usb_callout_reset(&sc->sc_tmo_pcd, hz, 1514 (void *)&ehci_pcd_enable, sc); 1515 } 1516 status &= ~(EHCI_STS_INT | EHCI_STS_ERRINT | EHCI_STS_PCD | EHCI_STS_IAA); 1517 1518 if (status != 0) { 1519 /* block unprocessed interrupts */ 1520 sc->sc_eintrs &= ~status; 1521 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1522 printf("%s: blocking interrupts 0x%x\n", __FUNCTION__, status); 1523 } 1524 /* poll all the USB transfers */ 1525 ehci_interrupt_poll(sc); 1526 1527 if (sc->sc_flags & EHCI_SCFLG_LOSTINTRBUG) { 1528 usb_callout_reset(&sc->sc_tmo_poll, hz / 128, 1529 (void *)&ehci_poll_timeout, sc); 1530 } 1531 1532 done: 1533 USB_BUS_UNLOCK(&sc->sc_bus); 1534 } 1535 1536 /* 1537 * called when a request does not complete 1538 */ 1539 static void 1540 ehci_timeout(void *arg) 1541 { 1542 struct usb_xfer *xfer = arg; 1543 1544 DPRINTF("xfer=%p\n", xfer); 1545 1546 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1547 1548 /* transfer is transferred */ 1549 ehci_device_done(xfer, USB_ERR_TIMEOUT); 1550 } 1551 1552 static void 1553 ehci_do_poll(struct usb_bus *bus) 1554 { 1555 ehci_softc_t *sc = EHCI_BUS2SC(bus); 1556 1557 USB_BUS_LOCK(&sc->sc_bus); 1558 ehci_interrupt_poll(sc); 1559 USB_BUS_UNLOCK(&sc->sc_bus); 1560 } 1561 1562 static void 1563 ehci_setup_standard_chain_sub(struct ehci_std_temp *temp) 1564 { 1565 struct usb_page_search buf_res; 1566 ehci_qtd_t *td; 1567 ehci_qtd_t *td_next; 1568 ehci_qtd_t *td_alt_next; 1569 uint32_t buf_offset; 1570 uint32_t average; 1571 uint32_t len_old; 1572 uint32_t terminate; 1573 uint32_t qtd_altnext; 1574 uint8_t shortpkt_old; 1575 uint8_t precompute; 1576 1577 terminate = temp->sc->sc_terminate_self; 1578 qtd_altnext = temp->sc->sc_terminate_self; 1579 td_alt_next = NULL; 1580 buf_offset = 0; 1581 shortpkt_old = temp->shortpkt; 1582 len_old = temp->len; 1583 precompute = 1; 1584 1585 restart: 1586 1587 td = temp->td; 1588 td_next = temp->td_next; 1589 1590 while (1) { 1591 1592 if (temp->len == 0) { 1593 1594 if (temp->shortpkt) { 1595 break; 1596 } 1597 /* send a Zero Length Packet, ZLP, last */ 1598 1599 temp->shortpkt = 1; 1600 average = 0; 1601 1602 } else { 1603 1604 average = temp->average; 1605 1606 if (temp->len < average) { 1607 if (temp->len % temp->max_frame_size) { 1608 temp->shortpkt = 1; 1609 } 1610 average = temp->len; 1611 } 1612 } 1613 1614 if (td_next == NULL) { 1615 panic("%s: out of EHCI transfer descriptors!", __FUNCTION__); 1616 } 1617 /* get next TD */ 1618 1619 td = td_next; 1620 td_next = td->obj_next; 1621 1622 /* check if we are pre-computing */ 1623 1624 if (precompute) { 1625 1626 /* update remaining length */ 1627 1628 temp->len -= average; 1629 1630 continue; 1631 } 1632 /* fill out current TD */ 1633 1634 td->qtd_status = 1635 temp->qtd_status | 1636 htohc32(temp->sc, EHCI_QTD_IOC | 1637 EHCI_QTD_SET_BYTES(average)); 1638 1639 if (average == 0) { 1640 1641 if (temp->auto_data_toggle == 0) { 1642 1643 /* update data toggle, ZLP case */ 1644 1645 temp->qtd_status ^= 1646 htohc32(temp->sc, EHCI_QTD_TOGGLE_MASK); 1647 } 1648 td->len = 0; 1649 1650 td->qtd_buffer[0] = 0; 1651 td->qtd_buffer_hi[0] = 0; 1652 1653 td->qtd_buffer[1] = 0; 1654 td->qtd_buffer_hi[1] = 0; 1655 1656 } else { 1657 1658 uint8_t x; 1659 1660 if (temp->auto_data_toggle == 0) { 1661 1662 /* update data toggle */ 1663 1664 if (((average + temp->max_frame_size - 1) / 1665 temp->max_frame_size) & 1) { 1666 temp->qtd_status ^= 1667 htohc32(temp->sc, EHCI_QTD_TOGGLE_MASK); 1668 } 1669 } 1670 td->len = average; 1671 1672 /* update remaining length */ 1673 1674 temp->len -= average; 1675 1676 /* fill out buffer pointers */ 1677 1678 usbd_get_page(temp->pc, buf_offset, &buf_res); 1679 td->qtd_buffer[0] = 1680 htohc32(temp->sc, buf_res.physaddr); 1681 td->qtd_buffer_hi[0] = 0; 1682 1683 x = 1; 1684 1685 while (average > EHCI_PAGE_SIZE) { 1686 average -= EHCI_PAGE_SIZE; 1687 buf_offset += EHCI_PAGE_SIZE; 1688 usbd_get_page(temp->pc, buf_offset, &buf_res); 1689 td->qtd_buffer[x] = 1690 htohc32(temp->sc, 1691 buf_res.physaddr & (~0xFFF)); 1692 td->qtd_buffer_hi[x] = 0; 1693 x++; 1694 } 1695 1696 /* 1697 * NOTE: The "average" variable is never zero after 1698 * exiting the loop above ! 1699 * 1700 * NOTE: We have to subtract one from the offset to 1701 * ensure that we are computing the physical address 1702 * of a valid page ! 1703 */ 1704 buf_offset += average; 1705 usbd_get_page(temp->pc, buf_offset - 1, &buf_res); 1706 td->qtd_buffer[x] = 1707 htohc32(temp->sc, 1708 buf_res.physaddr & (~0xFFF)); 1709 td->qtd_buffer_hi[x] = 0; 1710 } 1711 1712 if (td_next) { 1713 /* link the current TD with the next one */ 1714 td->qtd_next = td_next->qtd_self; 1715 } 1716 td->qtd_altnext = qtd_altnext; 1717 td->alt_next = td_alt_next; 1718 1719 usb_pc_cpu_flush(td->page_cache); 1720 } 1721 1722 if (precompute) { 1723 precompute = 0; 1724 1725 /* setup alt next pointer, if any */ 1726 if (temp->last_frame) { 1727 td_alt_next = NULL; 1728 qtd_altnext = terminate; 1729 } else { 1730 /* we use this field internally */ 1731 td_alt_next = td_next; 1732 if (temp->setup_alt_next) { 1733 qtd_altnext = td_next->qtd_self; 1734 } else { 1735 qtd_altnext = terminate; 1736 } 1737 } 1738 1739 /* restore */ 1740 temp->shortpkt = shortpkt_old; 1741 temp->len = len_old; 1742 goto restart; 1743 } 1744 temp->td = td; 1745 temp->td_next = td_next; 1746 } 1747 1748 static void 1749 ehci_setup_standard_chain(struct usb_xfer *xfer, ehci_qh_t **qh_last) 1750 { 1751 struct ehci_std_temp temp; 1752 struct usb_pipe_methods *methods; 1753 ehci_qh_t *qh; 1754 ehci_qtd_t *td; 1755 uint32_t qh_endp; 1756 uint32_t qh_endphub; 1757 uint32_t x; 1758 1759 DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n", 1760 xfer->address, UE_GET_ADDR(xfer->endpointno), 1761 xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); 1762 1763 temp.average = xfer->max_hc_frame_size; 1764 temp.max_frame_size = xfer->max_frame_size; 1765 temp.sc = EHCI_BUS2SC(xfer->xroot->bus); 1766 1767 /* toggle the DMA set we are using */ 1768 xfer->flags_int.curr_dma_set ^= 1; 1769 1770 /* get next DMA set */ 1771 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 1772 1773 xfer->td_transfer_first = td; 1774 xfer->td_transfer_cache = td; 1775 1776 temp.td = NULL; 1777 temp.td_next = td; 1778 temp.qtd_status = 0; 1779 temp.last_frame = 0; 1780 temp.setup_alt_next = xfer->flags_int.short_frames_ok; 1781 1782 if (xfer->flags_int.control_xfr) { 1783 if (xfer->endpoint->toggle_next) { 1784 /* DATA1 is next */ 1785 temp.qtd_status |= 1786 htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1)); 1787 } 1788 temp.auto_data_toggle = 0; 1789 } else { 1790 temp.auto_data_toggle = 1; 1791 } 1792 1793 if ((xfer->xroot->udev->parent_hs_hub != NULL) || 1794 (xfer->xroot->udev->address != 0)) { 1795 /* max 3 retries */ 1796 temp.qtd_status |= 1797 htohc32(temp.sc, EHCI_QTD_SET_CERR(3)); 1798 } 1799 /* check if we should prepend a setup message */ 1800 1801 if (xfer->flags_int.control_xfr) { 1802 if (xfer->flags_int.control_hdr) { 1803 1804 xfer->endpoint->toggle_next = 0; 1805 1806 temp.qtd_status &= 1807 htohc32(temp.sc, EHCI_QTD_SET_CERR(3)); 1808 temp.qtd_status |= htohc32(temp.sc, 1809 EHCI_QTD_ACTIVE | 1810 EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) | 1811 EHCI_QTD_SET_TOGGLE(0)); 1812 1813 temp.len = xfer->frlengths[0]; 1814 temp.pc = xfer->frbuffers + 0; 1815 temp.shortpkt = temp.len ? 1 : 0; 1816 /* check for last frame */ 1817 if (xfer->nframes == 1) { 1818 /* no STATUS stage yet, SETUP is last */ 1819 if (xfer->flags_int.control_act) { 1820 temp.last_frame = 1; 1821 temp.setup_alt_next = 0; 1822 } 1823 } 1824 ehci_setup_standard_chain_sub(&temp); 1825 } 1826 x = 1; 1827 } else { 1828 x = 0; 1829 } 1830 1831 while (x != xfer->nframes) { 1832 1833 /* DATA0 / DATA1 message */ 1834 1835 temp.len = xfer->frlengths[x]; 1836 temp.pc = xfer->frbuffers + x; 1837 1838 x++; 1839 1840 if (x == xfer->nframes) { 1841 if (xfer->flags_int.control_xfr) { 1842 /* no STATUS stage yet, DATA is last */ 1843 if (xfer->flags_int.control_act) { 1844 temp.last_frame = 1; 1845 temp.setup_alt_next = 0; 1846 } 1847 } else { 1848 temp.last_frame = 1; 1849 temp.setup_alt_next = 0; 1850 } 1851 } 1852 /* keep previous data toggle and error count */ 1853 1854 temp.qtd_status &= 1855 htohc32(temp.sc, EHCI_QTD_SET_CERR(3) | 1856 EHCI_QTD_SET_TOGGLE(1)); 1857 1858 if (temp.len == 0) { 1859 1860 /* make sure that we send an USB packet */ 1861 1862 temp.shortpkt = 0; 1863 1864 } else { 1865 1866 /* regular data transfer */ 1867 1868 temp.shortpkt = (xfer->flags.force_short_xfer) ? 0 : 1; 1869 } 1870 1871 /* set endpoint direction */ 1872 1873 temp.qtd_status |= 1874 (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) ? 1875 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1876 EHCI_QTD_SET_PID(EHCI_QTD_PID_IN)) : 1877 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1878 EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT)); 1879 1880 ehci_setup_standard_chain_sub(&temp); 1881 } 1882 1883 /* check if we should append a status stage */ 1884 1885 if (xfer->flags_int.control_xfr && 1886 !xfer->flags_int.control_act) { 1887 1888 /* 1889 * Send a DATA1 message and invert the current endpoint 1890 * direction. 1891 */ 1892 1893 temp.qtd_status &= htohc32(temp.sc, EHCI_QTD_SET_CERR(3) | 1894 EHCI_QTD_SET_TOGGLE(1)); 1895 temp.qtd_status |= 1896 (UE_GET_DIR(xfer->endpointno) == UE_DIR_OUT) ? 1897 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1898 EHCI_QTD_SET_PID(EHCI_QTD_PID_IN) | 1899 EHCI_QTD_SET_TOGGLE(1)) : 1900 htohc32(temp.sc, EHCI_QTD_ACTIVE | 1901 EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT) | 1902 EHCI_QTD_SET_TOGGLE(1)); 1903 1904 temp.len = 0; 1905 temp.pc = NULL; 1906 temp.shortpkt = 0; 1907 temp.last_frame = 1; 1908 temp.setup_alt_next = 0; 1909 1910 ehci_setup_standard_chain_sub(&temp); 1911 } 1912 td = temp.td; 1913 1914 /* the last TD terminates the transfer: */ 1915 td->qtd_next = htohc32(temp.sc, EHCI_LINK_TERMINATE); 1916 td->qtd_altnext = htohc32(temp.sc, EHCI_LINK_TERMINATE); 1917 1918 usb_pc_cpu_flush(td->page_cache); 1919 1920 /* must have at least one frame! */ 1921 1922 xfer->td_transfer_last = td; 1923 1924 #ifdef USB_DEBUG 1925 if (ehcidebug > 8) { 1926 DPRINTF("nexttog=%d; data before transfer:\n", 1927 xfer->endpoint->toggle_next); 1928 ehci_dump_sqtds(temp.sc, 1929 xfer->td_transfer_first); 1930 } 1931 #endif 1932 1933 methods = xfer->endpoint->methods; 1934 1935 qh = xfer->qh_start[xfer->flags_int.curr_dma_set]; 1936 1937 /* the "qh_link" field is filled when the QH is added */ 1938 1939 qh_endp = 1940 (EHCI_QH_SET_ADDR(xfer->address) | 1941 EHCI_QH_SET_ENDPT(UE_GET_ADDR(xfer->endpointno)) | 1942 EHCI_QH_SET_MPL(xfer->max_packet_size)); 1943 1944 if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_HIGH) { 1945 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH); 1946 if (methods != &ehci_device_intr_methods) 1947 qh_endp |= EHCI_QH_SET_NRL(8); 1948 } else { 1949 1950 if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_FULL) { 1951 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_FULL); 1952 } else { 1953 qh_endp |= EHCI_QH_SET_EPS(EHCI_QH_SPEED_LOW); 1954 } 1955 1956 if (methods == &ehci_device_ctrl_methods) { 1957 qh_endp |= EHCI_QH_CTL; 1958 } 1959 if (methods != &ehci_device_intr_methods) { 1960 /* Only try one time per microframe! */ 1961 qh_endp |= EHCI_QH_SET_NRL(1); 1962 } 1963 } 1964 1965 if (temp.auto_data_toggle == 0) { 1966 /* software computes the data toggle */ 1967 qh_endp |= EHCI_QH_DTC; 1968 } 1969 1970 qh->qh_endp = htohc32(temp.sc, qh_endp); 1971 1972 qh_endphub = 1973 (EHCI_QH_SET_MULT(xfer->max_packet_count & 3) | 1974 EHCI_QH_SET_CMASK(xfer->endpoint->usb_cmask) | 1975 EHCI_QH_SET_SMASK(xfer->endpoint->usb_smask) | 1976 EHCI_QH_SET_HUBA(xfer->xroot->udev->hs_hub_addr) | 1977 EHCI_QH_SET_PORT(xfer->xroot->udev->hs_port_no)); 1978 1979 qh->qh_endphub = htohc32(temp.sc, qh_endphub); 1980 qh->qh_curqtd = 0; 1981 1982 /* fill the overlay qTD */ 1983 1984 if (temp.auto_data_toggle && xfer->endpoint->toggle_next) { 1985 /* DATA1 is next */ 1986 qh->qh_qtd.qtd_status = htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1)); 1987 } else { 1988 qh->qh_qtd.qtd_status = 0; 1989 } 1990 1991 td = xfer->td_transfer_first; 1992 1993 qh->qh_qtd.qtd_next = td->qtd_self; 1994 qh->qh_qtd.qtd_altnext = 1995 htohc32(temp.sc, EHCI_LINK_TERMINATE); 1996 1997 usb_pc_cpu_flush(qh->page_cache); 1998 1999 if (xfer->xroot->udev->flags.self_suspended == 0) { 2000 EHCI_APPEND_QH(qh, *qh_last); 2001 } 2002 } 2003 2004 static void 2005 ehci_root_intr(ehci_softc_t *sc) 2006 { 2007 uint16_t i; 2008 uint16_t m; 2009 2010 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 2011 2012 /* clear any old interrupt data */ 2013 memset(sc->sc_hub_idata, 0, sizeof(sc->sc_hub_idata)); 2014 2015 /* set bits */ 2016 m = (sc->sc_noport + 1); 2017 if (m > (8 * sizeof(sc->sc_hub_idata))) { 2018 m = (8 * sizeof(sc->sc_hub_idata)); 2019 } 2020 for (i = 1; i < m; i++) { 2021 /* pick out CHANGE bits from the status register */ 2022 if (EOREAD4(sc, EHCI_PORTSC(i)) & EHCI_PS_CLEAR) { 2023 sc->sc_hub_idata[i / 8] |= 1 << (i % 8); 2024 DPRINTF("port %d changed\n", i); 2025 } 2026 } 2027 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 2028 sizeof(sc->sc_hub_idata)); 2029 } 2030 2031 static void 2032 ehci_isoc_fs_done(ehci_softc_t *sc, struct usb_xfer *xfer) 2033 { 2034 uint32_t nframes = xfer->nframes; 2035 uint32_t status; 2036 uint32_t *plen = xfer->frlengths; 2037 uint16_t len = 0; 2038 ehci_sitd_t *td = xfer->td_transfer_first; 2039 ehci_sitd_t **pp_last = &sc->sc_isoc_fs_p_last[xfer->qh_pos]; 2040 2041 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 2042 xfer, xfer->endpoint); 2043 2044 while (nframes--) { 2045 if (td == NULL) { 2046 panic("%s:%d: out of TD's\n", 2047 __FUNCTION__, __LINE__); 2048 } 2049 if (pp_last >= &sc->sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2050 pp_last = &sc->sc_isoc_fs_p_last[0]; 2051 } 2052 #ifdef USB_DEBUG 2053 if (ehcidebug > 15) { 2054 DPRINTF("isoc FS-TD\n"); 2055 ehci_dump_sitd(sc, td); 2056 } 2057 #endif 2058 usb_pc_cpu_invalidate(td->page_cache); 2059 status = hc32toh(sc, td->sitd_status); 2060 2061 len = EHCI_SITD_GET_LEN(status); 2062 2063 DPRINTFN(2, "status=0x%08x, rem=%u\n", status, len); 2064 2065 if (*plen >= len) { 2066 len = *plen - len; 2067 } else { 2068 len = 0; 2069 } 2070 2071 *plen = len; 2072 2073 /* remove FS-TD from schedule */ 2074 EHCI_REMOVE_FS_TD(td, *pp_last); 2075 2076 pp_last++; 2077 plen++; 2078 td = td->obj_next; 2079 } 2080 2081 xfer->aframes = xfer->nframes; 2082 } 2083 2084 static void 2085 ehci_isoc_hs_done(ehci_softc_t *sc, struct usb_xfer *xfer) 2086 { 2087 uint32_t nframes = xfer->nframes; 2088 uint32_t status; 2089 uint32_t *plen = xfer->frlengths; 2090 uint16_t len = 0; 2091 uint8_t td_no = 0; 2092 ehci_itd_t *td = xfer->td_transfer_first; 2093 ehci_itd_t **pp_last = &sc->sc_isoc_hs_p_last[xfer->qh_pos]; 2094 2095 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 2096 xfer, xfer->endpoint); 2097 2098 while (nframes) { 2099 if (td == NULL) { 2100 panic("%s:%d: out of TD's\n", 2101 __FUNCTION__, __LINE__); 2102 } 2103 if (pp_last >= &sc->sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2104 pp_last = &sc->sc_isoc_hs_p_last[0]; 2105 } 2106 #ifdef USB_DEBUG 2107 if (ehcidebug > 15) { 2108 DPRINTF("isoc HS-TD\n"); 2109 ehci_dump_itd(sc, td); 2110 } 2111 #endif 2112 2113 usb_pc_cpu_invalidate(td->page_cache); 2114 status = hc32toh(sc, td->itd_status[td_no]); 2115 2116 len = EHCI_ITD_GET_LEN(status); 2117 2118 DPRINTFN(2, "status=0x%08x, len=%u\n", status, len); 2119 2120 if (xfer->endpoint->usb_smask & (1 << td_no)) { 2121 2122 if (*plen >= len) { 2123 /* 2124 * The length is valid. NOTE: The 2125 * complete length is written back 2126 * into the status field, and not the 2127 * remainder like with other transfer 2128 * descriptor types. 2129 */ 2130 } else { 2131 /* Invalid length - truncate */ 2132 len = 0; 2133 } 2134 2135 *plen = len; 2136 plen++; 2137 nframes--; 2138 } 2139 2140 td_no++; 2141 2142 if ((td_no == 8) || (nframes == 0)) { 2143 /* remove HS-TD from schedule */ 2144 EHCI_REMOVE_HS_TD(td, *pp_last); 2145 pp_last++; 2146 2147 td_no = 0; 2148 td = td->obj_next; 2149 } 2150 } 2151 xfer->aframes = xfer->nframes; 2152 } 2153 2154 /* NOTE: "done" can be run two times in a row, 2155 * from close and from interrupt 2156 */ 2157 static void 2158 ehci_device_done(struct usb_xfer *xfer, usb_error_t error) 2159 { 2160 struct usb_pipe_methods *methods = xfer->endpoint->methods; 2161 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2162 2163 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 2164 2165 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n", 2166 xfer, xfer->endpoint, error); 2167 2168 if ((methods == &ehci_device_bulk_methods) || 2169 (methods == &ehci_device_ctrl_methods)) { 2170 #ifdef USB_DEBUG 2171 if (ehcidebug > 8) { 2172 DPRINTF("nexttog=%d; data after transfer:\n", 2173 xfer->endpoint->toggle_next); 2174 ehci_dump_sqtds(sc, 2175 xfer->td_transfer_first); 2176 } 2177 #endif 2178 2179 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 2180 sc->sc_async_p_last); 2181 } 2182 if (methods == &ehci_device_intr_methods) { 2183 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 2184 sc->sc_intr_p_last[xfer->qh_pos]); 2185 } 2186 /* 2187 * Only finish isochronous transfers once which will update 2188 * "xfer->frlengths". 2189 */ 2190 if (xfer->td_transfer_first && 2191 xfer->td_transfer_last) { 2192 if (methods == &ehci_device_isoc_fs_methods) { 2193 ehci_isoc_fs_done(sc, xfer); 2194 } 2195 if (methods == &ehci_device_isoc_hs_methods) { 2196 ehci_isoc_hs_done(sc, xfer); 2197 } 2198 xfer->td_transfer_first = NULL; 2199 xfer->td_transfer_last = NULL; 2200 } 2201 /* dequeue transfer and start next transfer */ 2202 usbd_transfer_done(xfer, error); 2203 } 2204 2205 /*------------------------------------------------------------------------* 2206 * ehci bulk support 2207 *------------------------------------------------------------------------*/ 2208 static void 2209 ehci_device_bulk_open(struct usb_xfer *xfer) 2210 { 2211 return; 2212 } 2213 2214 static void 2215 ehci_device_bulk_close(struct usb_xfer *xfer) 2216 { 2217 ehci_device_done(xfer, USB_ERR_CANCELLED); 2218 } 2219 2220 static void 2221 ehci_device_bulk_enter(struct usb_xfer *xfer) 2222 { 2223 return; 2224 } 2225 2226 static void 2227 ehci_device_bulk_start(struct usb_xfer *xfer) 2228 { 2229 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2230 uint32_t temp; 2231 2232 /* setup TD's and QH */ 2233 ehci_setup_standard_chain(xfer, &sc->sc_async_p_last); 2234 2235 /* put transfer on interrupt queue */ 2236 ehci_transfer_intr_enqueue(xfer); 2237 2238 /* 2239 * XXX Certain nVidia chipsets choke when using the IAAD 2240 * feature too frequently. 2241 */ 2242 if (sc->sc_flags & EHCI_SCFLG_IAADBUG) 2243 return; 2244 2245 /* XXX Performance quirk: Some Host Controllers have a too low 2246 * interrupt rate. Issue an IAAD to stimulate the Host 2247 * Controller after queueing the BULK transfer. 2248 */ 2249 temp = EOREAD4(sc, EHCI_USBCMD); 2250 if (!(temp & EHCI_CMD_IAAD)) 2251 EOWRITE4(sc, EHCI_USBCMD, temp | EHCI_CMD_IAAD); 2252 } 2253 2254 struct usb_pipe_methods ehci_device_bulk_methods = 2255 { 2256 .open = ehci_device_bulk_open, 2257 .close = ehci_device_bulk_close, 2258 .enter = ehci_device_bulk_enter, 2259 .start = ehci_device_bulk_start, 2260 }; 2261 2262 /*------------------------------------------------------------------------* 2263 * ehci control support 2264 *------------------------------------------------------------------------*/ 2265 static void 2266 ehci_device_ctrl_open(struct usb_xfer *xfer) 2267 { 2268 return; 2269 } 2270 2271 static void 2272 ehci_device_ctrl_close(struct usb_xfer *xfer) 2273 { 2274 ehci_device_done(xfer, USB_ERR_CANCELLED); 2275 } 2276 2277 static void 2278 ehci_device_ctrl_enter(struct usb_xfer *xfer) 2279 { 2280 return; 2281 } 2282 2283 static void 2284 ehci_device_ctrl_start(struct usb_xfer *xfer) 2285 { 2286 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2287 2288 /* setup TD's and QH */ 2289 ehci_setup_standard_chain(xfer, &sc->sc_async_p_last); 2290 2291 /* put transfer on interrupt queue */ 2292 ehci_transfer_intr_enqueue(xfer); 2293 } 2294 2295 struct usb_pipe_methods ehci_device_ctrl_methods = 2296 { 2297 .open = ehci_device_ctrl_open, 2298 .close = ehci_device_ctrl_close, 2299 .enter = ehci_device_ctrl_enter, 2300 .start = ehci_device_ctrl_start, 2301 }; 2302 2303 /*------------------------------------------------------------------------* 2304 * ehci interrupt support 2305 *------------------------------------------------------------------------*/ 2306 static void 2307 ehci_device_intr_open(struct usb_xfer *xfer) 2308 { 2309 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2310 uint16_t best; 2311 uint16_t bit; 2312 uint16_t x; 2313 2314 usb_hs_bandwidth_alloc(xfer); 2315 2316 /* 2317 * Find the best QH position corresponding to the given interval: 2318 */ 2319 2320 best = 0; 2321 bit = EHCI_VIRTUAL_FRAMELIST_COUNT / 2; 2322 while (bit) { 2323 if (xfer->interval >= bit) { 2324 x = bit; 2325 best = bit; 2326 while (x & bit) { 2327 if (sc->sc_intr_stat[x] < 2328 sc->sc_intr_stat[best]) { 2329 best = x; 2330 } 2331 x++; 2332 } 2333 break; 2334 } 2335 bit >>= 1; 2336 } 2337 2338 sc->sc_intr_stat[best]++; 2339 xfer->qh_pos = best; 2340 2341 DPRINTFN(3, "best=%d interval=%d\n", 2342 best, xfer->interval); 2343 } 2344 2345 static void 2346 ehci_device_intr_close(struct usb_xfer *xfer) 2347 { 2348 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2349 2350 sc->sc_intr_stat[xfer->qh_pos]--; 2351 2352 ehci_device_done(xfer, USB_ERR_CANCELLED); 2353 2354 /* bandwidth must be freed after device done */ 2355 usb_hs_bandwidth_free(xfer); 2356 } 2357 2358 static void 2359 ehci_device_intr_enter(struct usb_xfer *xfer) 2360 { 2361 return; 2362 } 2363 2364 static void 2365 ehci_device_intr_start(struct usb_xfer *xfer) 2366 { 2367 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2368 2369 /* setup TD's and QH */ 2370 ehci_setup_standard_chain(xfer, &sc->sc_intr_p_last[xfer->qh_pos]); 2371 2372 /* put transfer on interrupt queue */ 2373 ehci_transfer_intr_enqueue(xfer); 2374 } 2375 2376 struct usb_pipe_methods ehci_device_intr_methods = 2377 { 2378 .open = ehci_device_intr_open, 2379 .close = ehci_device_intr_close, 2380 .enter = ehci_device_intr_enter, 2381 .start = ehci_device_intr_start, 2382 }; 2383 2384 /*------------------------------------------------------------------------* 2385 * ehci full speed isochronous support 2386 *------------------------------------------------------------------------*/ 2387 static void 2388 ehci_device_isoc_fs_open(struct usb_xfer *xfer) 2389 { 2390 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2391 ehci_sitd_t *td; 2392 uint32_t sitd_portaddr; 2393 uint8_t ds; 2394 2395 sitd_portaddr = 2396 EHCI_SITD_SET_ADDR(xfer->address) | 2397 EHCI_SITD_SET_ENDPT(UE_GET_ADDR(xfer->endpointno)) | 2398 EHCI_SITD_SET_HUBA(xfer->xroot->udev->hs_hub_addr) | 2399 EHCI_SITD_SET_PORT(xfer->xroot->udev->hs_port_no); 2400 2401 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) { 2402 sitd_portaddr |= EHCI_SITD_SET_DIR_IN; 2403 } 2404 sitd_portaddr = htohc32(sc, sitd_portaddr); 2405 2406 /* initialize all TD's */ 2407 2408 for (ds = 0; ds != 2; ds++) { 2409 2410 for (td = xfer->td_start[ds]; td; td = td->obj_next) { 2411 2412 td->sitd_portaddr = sitd_portaddr; 2413 2414 /* 2415 * TODO: make some kind of automatic 2416 * SMASK/CMASK selection based on micro-frame 2417 * usage 2418 * 2419 * micro-frame usage (8 microframes per 1ms) 2420 */ 2421 td->sitd_back = htohc32(sc, EHCI_LINK_TERMINATE); 2422 2423 usb_pc_cpu_flush(td->page_cache); 2424 } 2425 } 2426 } 2427 2428 static void 2429 ehci_device_isoc_fs_close(struct usb_xfer *xfer) 2430 { 2431 ehci_device_done(xfer, USB_ERR_CANCELLED); 2432 } 2433 2434 static void 2435 ehci_device_isoc_fs_enter(struct usb_xfer *xfer) 2436 { 2437 struct usb_page_search buf_res; 2438 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2439 struct usb_fs_isoc_schedule *fss_start; 2440 struct usb_fs_isoc_schedule *fss_end; 2441 struct usb_fs_isoc_schedule *fss; 2442 ehci_sitd_t *td; 2443 ehci_sitd_t *td_last = NULL; 2444 ehci_sitd_t **pp_last; 2445 uint32_t *plen; 2446 uint32_t buf_offset; 2447 uint32_t nframes; 2448 uint32_t temp; 2449 uint32_t sitd_mask; 2450 uint16_t tlen; 2451 uint8_t sa; 2452 uint8_t sb; 2453 uint8_t error; 2454 2455 #ifdef USB_DEBUG 2456 uint8_t once = 1; 2457 2458 #endif 2459 2460 DPRINTFN(6, "xfer=%p next=%d nframes=%d\n", 2461 xfer, xfer->endpoint->isoc_next, xfer->nframes); 2462 2463 /* get the current frame index */ 2464 2465 nframes = EOREAD4(sc, EHCI_FRINDEX) / 8; 2466 2467 /* 2468 * check if the frame index is within the window where the frames 2469 * will be inserted 2470 */ 2471 buf_offset = (nframes - xfer->endpoint->isoc_next) & 2472 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2473 2474 if ((xfer->endpoint->is_synced == 0) || 2475 (buf_offset < xfer->nframes)) { 2476 /* 2477 * If there is data underflow or the pipe queue is empty we 2478 * schedule the transfer a few frames ahead of the current 2479 * frame position. Else two isochronous transfers might 2480 * overlap. 2481 */ 2482 xfer->endpoint->isoc_next = (nframes + 3) & 2483 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2484 xfer->endpoint->is_synced = 1; 2485 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 2486 } 2487 /* 2488 * compute how many milliseconds the insertion is ahead of the 2489 * current frame position: 2490 */ 2491 buf_offset = (xfer->endpoint->isoc_next - nframes) & 2492 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2493 2494 /* 2495 * pre-compute when the isochronous transfer will be finished: 2496 */ 2497 xfer->isoc_time_complete = 2498 usbd_fs_isoc_schedule_isoc_time_expand 2499 (xfer->xroot->udev, &fss_start, &fss_end, nframes) + buf_offset + 2500 xfer->nframes; 2501 2502 /* get the real number of frames */ 2503 2504 nframes = xfer->nframes; 2505 2506 buf_offset = 0; 2507 2508 plen = xfer->frlengths; 2509 2510 /* toggle the DMA set we are using */ 2511 xfer->flags_int.curr_dma_set ^= 1; 2512 2513 /* get next DMA set */ 2514 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 2515 xfer->td_transfer_first = td; 2516 2517 pp_last = &sc->sc_isoc_fs_p_last[xfer->endpoint->isoc_next]; 2518 2519 /* store starting position */ 2520 2521 xfer->qh_pos = xfer->endpoint->isoc_next; 2522 2523 fss = fss_start + (xfer->qh_pos % USB_ISOC_TIME_MAX); 2524 2525 while (nframes--) { 2526 if (td == NULL) { 2527 panic("%s:%d: out of TD's\n", 2528 __FUNCTION__, __LINE__); 2529 } 2530 if (pp_last >= &sc->sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2531 pp_last = &sc->sc_isoc_fs_p_last[0]; 2532 } 2533 if (fss >= fss_end) { 2534 fss = fss_start; 2535 } 2536 /* reuse sitd_portaddr and sitd_back from last transfer */ 2537 2538 if (*plen > xfer->max_frame_size) { 2539 #ifdef USB_DEBUG 2540 if (once) { 2541 once = 0; 2542 printf("%s: frame length(%d) exceeds %d " 2543 "bytes (frame truncated)\n", 2544 __FUNCTION__, *plen, 2545 xfer->max_frame_size); 2546 } 2547 #endif 2548 *plen = xfer->max_frame_size; 2549 } 2550 /* 2551 * We currently don't care if the ISOCHRONOUS schedule is 2552 * full! 2553 */ 2554 error = usbd_fs_isoc_schedule_alloc(fss, &sa, *plen); 2555 if (error) { 2556 /* 2557 * The FULL speed schedule is FULL! Set length 2558 * to zero. 2559 */ 2560 *plen = 0; 2561 } 2562 if (*plen) { 2563 /* 2564 * only call "usbd_get_page()" when we have a 2565 * non-zero length 2566 */ 2567 usbd_get_page(xfer->frbuffers, buf_offset, &buf_res); 2568 td->sitd_bp[0] = htohc32(sc, buf_res.physaddr); 2569 buf_offset += *plen; 2570 /* 2571 * NOTE: We need to subtract one from the offset so 2572 * that we are on a valid page! 2573 */ 2574 usbd_get_page(xfer->frbuffers, buf_offset - 1, 2575 &buf_res); 2576 temp = buf_res.physaddr & ~0xFFF; 2577 } else { 2578 td->sitd_bp[0] = 0; 2579 temp = 0; 2580 } 2581 2582 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_OUT) { 2583 tlen = *plen; 2584 if (tlen <= 188) { 2585 temp |= 1; /* T-count = 1, TP = ALL */ 2586 tlen = 1; 2587 } else { 2588 tlen += 187; 2589 tlen /= 188; 2590 temp |= tlen; /* T-count = [1..6] */ 2591 temp |= 8; /* TP = Begin */ 2592 } 2593 2594 tlen += sa; 2595 2596 if (tlen >= 8) { 2597 sb = 0; 2598 } else { 2599 sb = (1 << tlen); 2600 } 2601 2602 sa = (1 << sa); 2603 sa = (sb - sa) & 0x3F; 2604 sb = 0; 2605 } else { 2606 sb = (-(4 << sa)) & 0xFE; 2607 sa = (1 << sa) & 0x3F; 2608 } 2609 2610 sitd_mask = (EHCI_SITD_SET_SMASK(sa) | 2611 EHCI_SITD_SET_CMASK(sb)); 2612 2613 td->sitd_bp[1] = htohc32(sc, temp); 2614 2615 td->sitd_mask = htohc32(sc, sitd_mask); 2616 2617 if (nframes == 0) { 2618 td->sitd_status = htohc32(sc, 2619 EHCI_SITD_IOC | 2620 EHCI_SITD_ACTIVE | 2621 EHCI_SITD_SET_LEN(*plen)); 2622 } else { 2623 td->sitd_status = htohc32(sc, 2624 EHCI_SITD_ACTIVE | 2625 EHCI_SITD_SET_LEN(*plen)); 2626 } 2627 usb_pc_cpu_flush(td->page_cache); 2628 2629 #ifdef USB_DEBUG 2630 if (ehcidebug > 15) { 2631 DPRINTF("FS-TD %d\n", nframes); 2632 ehci_dump_sitd(sc, td); 2633 } 2634 #endif 2635 /* insert TD into schedule */ 2636 EHCI_APPEND_FS_TD(td, *pp_last); 2637 pp_last++; 2638 2639 plen++; 2640 fss++; 2641 td_last = td; 2642 td = td->obj_next; 2643 } 2644 2645 xfer->td_transfer_last = td_last; 2646 2647 /* update isoc_next */ 2648 xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_fs_p_last[0]) & 2649 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2650 } 2651 2652 static void 2653 ehci_device_isoc_fs_start(struct usb_xfer *xfer) 2654 { 2655 /* put transfer on interrupt queue */ 2656 ehci_transfer_intr_enqueue(xfer); 2657 } 2658 2659 struct usb_pipe_methods ehci_device_isoc_fs_methods = 2660 { 2661 .open = ehci_device_isoc_fs_open, 2662 .close = ehci_device_isoc_fs_close, 2663 .enter = ehci_device_isoc_fs_enter, 2664 .start = ehci_device_isoc_fs_start, 2665 }; 2666 2667 /*------------------------------------------------------------------------* 2668 * ehci high speed isochronous support 2669 *------------------------------------------------------------------------*/ 2670 static void 2671 ehci_device_isoc_hs_open(struct usb_xfer *xfer) 2672 { 2673 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2674 ehci_itd_t *td; 2675 uint32_t temp; 2676 uint8_t ds; 2677 2678 usb_hs_bandwidth_alloc(xfer); 2679 2680 /* initialize all TD's */ 2681 2682 for (ds = 0; ds != 2; ds++) { 2683 2684 for (td = xfer->td_start[ds]; td; td = td->obj_next) { 2685 2686 /* set TD inactive */ 2687 td->itd_status[0] = 0; 2688 td->itd_status[1] = 0; 2689 td->itd_status[2] = 0; 2690 td->itd_status[3] = 0; 2691 td->itd_status[4] = 0; 2692 td->itd_status[5] = 0; 2693 td->itd_status[6] = 0; 2694 td->itd_status[7] = 0; 2695 2696 /* set endpoint and address */ 2697 td->itd_bp[0] = htohc32(sc, 2698 EHCI_ITD_SET_ADDR(xfer->address) | 2699 EHCI_ITD_SET_ENDPT(UE_GET_ADDR(xfer->endpointno))); 2700 2701 temp = 2702 EHCI_ITD_SET_MPL(xfer->max_packet_size & 0x7FF); 2703 2704 /* set direction */ 2705 if (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) { 2706 temp |= EHCI_ITD_SET_DIR_IN; 2707 } 2708 /* set maximum packet size */ 2709 td->itd_bp[1] = htohc32(sc, temp); 2710 2711 /* set transfer multiplier */ 2712 td->itd_bp[2] = htohc32(sc, xfer->max_packet_count & 3); 2713 2714 usb_pc_cpu_flush(td->page_cache); 2715 } 2716 } 2717 } 2718 2719 static void 2720 ehci_device_isoc_hs_close(struct usb_xfer *xfer) 2721 { 2722 ehci_device_done(xfer, USB_ERR_CANCELLED); 2723 2724 /* bandwidth must be freed after device done */ 2725 usb_hs_bandwidth_free(xfer); 2726 } 2727 2728 static void 2729 ehci_device_isoc_hs_enter(struct usb_xfer *xfer) 2730 { 2731 struct usb_page_search buf_res; 2732 ehci_softc_t *sc = EHCI_BUS2SC(xfer->xroot->bus); 2733 ehci_itd_t *td; 2734 ehci_itd_t *td_last = NULL; 2735 ehci_itd_t **pp_last; 2736 bus_size_t page_addr; 2737 uint32_t *plen; 2738 uint32_t status; 2739 uint32_t buf_offset; 2740 uint32_t nframes; 2741 uint32_t itd_offset[8 + 1]; 2742 uint8_t x; 2743 uint8_t td_no; 2744 uint8_t page_no; 2745 uint8_t shift = usbd_xfer_get_fps_shift(xfer); 2746 2747 #ifdef USB_DEBUG 2748 uint8_t once = 1; 2749 2750 #endif 2751 2752 DPRINTFN(6, "xfer=%p next=%d nframes=%d shift=%d\n", 2753 xfer, xfer->endpoint->isoc_next, xfer->nframes, (int)shift); 2754 2755 /* get the current frame index */ 2756 2757 nframes = EOREAD4(sc, EHCI_FRINDEX) / 8; 2758 2759 /* 2760 * check if the frame index is within the window where the frames 2761 * will be inserted 2762 */ 2763 buf_offset = (nframes - xfer->endpoint->isoc_next) & 2764 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2765 2766 if ((xfer->endpoint->is_synced == 0) || 2767 (buf_offset < (((xfer->nframes << shift) + 7) / 8))) { 2768 /* 2769 * If there is data underflow or the pipe queue is empty we 2770 * schedule the transfer a few frames ahead of the current 2771 * frame position. Else two isochronous transfers might 2772 * overlap. 2773 */ 2774 xfer->endpoint->isoc_next = (nframes + 3) & 2775 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2776 xfer->endpoint->is_synced = 1; 2777 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 2778 } 2779 /* 2780 * compute how many milliseconds the insertion is ahead of the 2781 * current frame position: 2782 */ 2783 buf_offset = (xfer->endpoint->isoc_next - nframes) & 2784 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2785 2786 /* 2787 * pre-compute when the isochronous transfer will be finished: 2788 */ 2789 xfer->isoc_time_complete = 2790 usb_isoc_time_expand(&sc->sc_bus, nframes) + buf_offset + 2791 (((xfer->nframes << shift) + 7) / 8); 2792 2793 /* get the real number of frames */ 2794 2795 nframes = xfer->nframes; 2796 2797 buf_offset = 0; 2798 td_no = 0; 2799 2800 plen = xfer->frlengths; 2801 2802 /* toggle the DMA set we are using */ 2803 xfer->flags_int.curr_dma_set ^= 1; 2804 2805 /* get next DMA set */ 2806 td = xfer->td_start[xfer->flags_int.curr_dma_set]; 2807 xfer->td_transfer_first = td; 2808 2809 pp_last = &sc->sc_isoc_hs_p_last[xfer->endpoint->isoc_next]; 2810 2811 /* store starting position */ 2812 2813 xfer->qh_pos = xfer->endpoint->isoc_next; 2814 2815 while (nframes) { 2816 if (td == NULL) { 2817 panic("%s:%d: out of TD's\n", 2818 __FUNCTION__, __LINE__); 2819 } 2820 if (pp_last >= &sc->sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]) { 2821 pp_last = &sc->sc_isoc_hs_p_last[0]; 2822 } 2823 /* range check */ 2824 if (*plen > xfer->max_frame_size) { 2825 #ifdef USB_DEBUG 2826 if (once) { 2827 once = 0; 2828 printf("%s: frame length(%d) exceeds %d bytes " 2829 "(frame truncated)\n", 2830 __FUNCTION__, *plen, xfer->max_frame_size); 2831 } 2832 #endif 2833 *plen = xfer->max_frame_size; 2834 } 2835 2836 if (xfer->endpoint->usb_smask & (1 << td_no)) { 2837 status = (EHCI_ITD_SET_LEN(*plen) | 2838 EHCI_ITD_ACTIVE | 2839 EHCI_ITD_SET_PG(0)); 2840 td->itd_status[td_no] = htohc32(sc, status); 2841 itd_offset[td_no] = buf_offset; 2842 buf_offset += *plen; 2843 plen++; 2844 nframes --; 2845 } else { 2846 td->itd_status[td_no] = 0; /* not active */ 2847 itd_offset[td_no] = buf_offset; 2848 } 2849 2850 td_no++; 2851 2852 if ((td_no == 8) || (nframes == 0)) { 2853 2854 /* the rest of the transfers are not active, if any */ 2855 for (x = td_no; x != 8; x++) { 2856 td->itd_status[x] = 0; /* not active */ 2857 } 2858 2859 /* check if there is any data to be transferred */ 2860 if (itd_offset[0] != buf_offset) { 2861 page_no = 0; 2862 itd_offset[td_no] = buf_offset; 2863 2864 /* get first page offset */ 2865 usbd_get_page(xfer->frbuffers, itd_offset[0], &buf_res); 2866 /* get page address */ 2867 page_addr = buf_res.physaddr & ~0xFFF; 2868 /* update page address */ 2869 td->itd_bp[0] &= htohc32(sc, 0xFFF); 2870 td->itd_bp[0] |= htohc32(sc, page_addr); 2871 2872 for (x = 0; x != td_no; x++) { 2873 /* set page number and page offset */ 2874 status = (EHCI_ITD_SET_PG(page_no) | 2875 (buf_res.physaddr & 0xFFF)); 2876 td->itd_status[x] |= htohc32(sc, status); 2877 2878 /* get next page offset */ 2879 if (itd_offset[x + 1] == buf_offset) { 2880 /* 2881 * We subtract one so that 2882 * we don't go off the last 2883 * page! 2884 */ 2885 usbd_get_page(xfer->frbuffers, buf_offset - 1, &buf_res); 2886 } else { 2887 usbd_get_page(xfer->frbuffers, itd_offset[x + 1], &buf_res); 2888 } 2889 2890 /* check if we need a new page */ 2891 if ((buf_res.physaddr ^ page_addr) & ~0xFFF) { 2892 /* new page needed */ 2893 page_addr = buf_res.physaddr & ~0xFFF; 2894 if (page_no == 6) { 2895 panic("%s: too many pages\n", __FUNCTION__); 2896 } 2897 page_no++; 2898 /* update page address */ 2899 td->itd_bp[page_no] &= htohc32(sc, 0xFFF); 2900 td->itd_bp[page_no] |= htohc32(sc, page_addr); 2901 } 2902 } 2903 } 2904 /* set IOC bit if we are complete */ 2905 if (nframes == 0) { 2906 td->itd_status[td_no - 1] |= htohc32(sc, EHCI_ITD_IOC); 2907 } 2908 usb_pc_cpu_flush(td->page_cache); 2909 #ifdef USB_DEBUG 2910 if (ehcidebug > 15) { 2911 DPRINTF("HS-TD %d\n", nframes); 2912 ehci_dump_itd(sc, td); 2913 } 2914 #endif 2915 /* insert TD into schedule */ 2916 EHCI_APPEND_HS_TD(td, *pp_last); 2917 pp_last++; 2918 2919 td_no = 0; 2920 td_last = td; 2921 td = td->obj_next; 2922 } 2923 } 2924 2925 xfer->td_transfer_last = td_last; 2926 2927 /* update isoc_next */ 2928 xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_hs_p_last[0]) & 2929 (EHCI_VIRTUAL_FRAMELIST_COUNT - 1); 2930 } 2931 2932 static void 2933 ehci_device_isoc_hs_start(struct usb_xfer *xfer) 2934 { 2935 /* put transfer on interrupt queue */ 2936 ehci_transfer_intr_enqueue(xfer); 2937 } 2938 2939 struct usb_pipe_methods ehci_device_isoc_hs_methods = 2940 { 2941 .open = ehci_device_isoc_hs_open, 2942 .close = ehci_device_isoc_hs_close, 2943 .enter = ehci_device_isoc_hs_enter, 2944 .start = ehci_device_isoc_hs_start, 2945 }; 2946 2947 /*------------------------------------------------------------------------* 2948 * ehci root control support 2949 *------------------------------------------------------------------------* 2950 * Simulate a hardware hub by handling all the necessary requests. 2951 *------------------------------------------------------------------------*/ 2952 2953 static const 2954 struct usb_device_descriptor ehci_devd = 2955 { 2956 sizeof(struct usb_device_descriptor), 2957 UDESC_DEVICE, /* type */ 2958 {0x00, 0x02}, /* USB version */ 2959 UDCLASS_HUB, /* class */ 2960 UDSUBCLASS_HUB, /* subclass */ 2961 UDPROTO_HSHUBSTT, /* protocol */ 2962 64, /* max packet */ 2963 {0}, {0}, {0x00, 0x01}, /* device id */ 2964 1, 2, 0, /* string indicies */ 2965 1 /* # of configurations */ 2966 }; 2967 2968 static const 2969 struct usb_device_qualifier ehci_odevd = 2970 { 2971 sizeof(struct usb_device_qualifier), 2972 UDESC_DEVICE_QUALIFIER, /* type */ 2973 {0x00, 0x02}, /* USB version */ 2974 UDCLASS_HUB, /* class */ 2975 UDSUBCLASS_HUB, /* subclass */ 2976 UDPROTO_FSHUB, /* protocol */ 2977 0, /* max packet */ 2978 0, /* # of configurations */ 2979 0 2980 }; 2981 2982 static const struct ehci_config_desc ehci_confd = { 2983 .confd = { 2984 .bLength = sizeof(struct usb_config_descriptor), 2985 .bDescriptorType = UDESC_CONFIG, 2986 .wTotalLength[0] = sizeof(ehci_confd), 2987 .bNumInterface = 1, 2988 .bConfigurationValue = 1, 2989 .iConfiguration = 0, 2990 .bmAttributes = UC_SELF_POWERED, 2991 .bMaxPower = 0 /* max power */ 2992 }, 2993 .ifcd = { 2994 .bLength = sizeof(struct usb_interface_descriptor), 2995 .bDescriptorType = UDESC_INTERFACE, 2996 .bNumEndpoints = 1, 2997 .bInterfaceClass = UICLASS_HUB, 2998 .bInterfaceSubClass = UISUBCLASS_HUB, 2999 .bInterfaceProtocol = 0, 3000 }, 3001 .endpd = { 3002 .bLength = sizeof(struct usb_endpoint_descriptor), 3003 .bDescriptorType = UDESC_ENDPOINT, 3004 .bEndpointAddress = UE_DIR_IN | EHCI_INTR_ENDPT, 3005 .bmAttributes = UE_INTERRUPT, 3006 .wMaxPacketSize[0] = 8, /* max packet (63 ports) */ 3007 .bInterval = 255, 3008 }, 3009 }; 3010 3011 static const 3012 struct usb_hub_descriptor ehci_hubd = 3013 { 3014 0, /* dynamic length */ 3015 UDESC_HUB, 3016 0, 3017 {0, 0}, 3018 0, 3019 0, 3020 {0}, 3021 }; 3022 3023 static void 3024 ehci_disown(ehci_softc_t *sc, uint16_t index, uint8_t lowspeed) 3025 { 3026 uint32_t port; 3027 uint32_t v; 3028 3029 DPRINTF("index=%d lowspeed=%d\n", index, lowspeed); 3030 3031 port = EHCI_PORTSC(index); 3032 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3033 EOWRITE4(sc, port, v | EHCI_PS_PO); 3034 } 3035 3036 static usb_error_t 3037 ehci_roothub_exec(struct usb_device *udev, 3038 struct usb_device_request *req, const void **pptr, uint16_t *plength) 3039 { 3040 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3041 const char *str_ptr; 3042 const void *ptr; 3043 uint32_t port; 3044 uint32_t v; 3045 uint16_t len; 3046 uint16_t i; 3047 uint16_t value; 3048 uint16_t index; 3049 usb_error_t err; 3050 3051 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 3052 3053 /* buffer reset */ 3054 ptr = (const void *)&sc->sc_hub_desc; 3055 len = 0; 3056 err = 0; 3057 3058 value = UGETW(req->wValue); 3059 index = UGETW(req->wIndex); 3060 3061 DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x " 3062 "wValue=0x%04x wIndex=0x%04x\n", 3063 req->bmRequestType, req->bRequest, 3064 UGETW(req->wLength), value, index); 3065 3066 #define C(x,y) ((x) | ((y) << 8)) 3067 switch (C(req->bRequest, req->bmRequestType)) { 3068 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3069 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3070 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3071 /* 3072 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3073 * for the integrated root hub. 3074 */ 3075 break; 3076 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3077 len = 1; 3078 sc->sc_hub_desc.temp[0] = sc->sc_conf; 3079 break; 3080 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3081 switch (value >> 8) { 3082 case UDESC_DEVICE: 3083 if ((value & 0xff) != 0) { 3084 err = USB_ERR_IOERROR; 3085 goto done; 3086 } 3087 len = sizeof(ehci_devd); 3088 ptr = (const void *)&ehci_devd; 3089 break; 3090 /* 3091 * We can't really operate at another speed, 3092 * but the specification says we need this 3093 * descriptor: 3094 */ 3095 case UDESC_DEVICE_QUALIFIER: 3096 if ((value & 0xff) != 0) { 3097 err = USB_ERR_IOERROR; 3098 goto done; 3099 } 3100 len = sizeof(ehci_odevd); 3101 ptr = (const void *)&ehci_odevd; 3102 break; 3103 3104 case UDESC_CONFIG: 3105 if ((value & 0xff) != 0) { 3106 err = USB_ERR_IOERROR; 3107 goto done; 3108 } 3109 len = sizeof(ehci_confd); 3110 ptr = (const void *)&ehci_confd; 3111 break; 3112 3113 case UDESC_STRING: 3114 switch (value & 0xff) { 3115 case 0: /* Language table */ 3116 str_ptr = "\001"; 3117 break; 3118 3119 case 1: /* Vendor */ 3120 str_ptr = sc->sc_vendor; 3121 break; 3122 3123 case 2: /* Product */ 3124 str_ptr = "EHCI root HUB"; 3125 break; 3126 3127 default: 3128 str_ptr = ""; 3129 break; 3130 } 3131 3132 len = usb_make_str_desc( 3133 sc->sc_hub_desc.temp, 3134 sizeof(sc->sc_hub_desc.temp), 3135 str_ptr); 3136 break; 3137 default: 3138 err = USB_ERR_IOERROR; 3139 goto done; 3140 } 3141 break; 3142 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3143 len = 1; 3144 sc->sc_hub_desc.temp[0] = 0; 3145 break; 3146 case C(UR_GET_STATUS, UT_READ_DEVICE): 3147 len = 2; 3148 USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED); 3149 break; 3150 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3151 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3152 len = 2; 3153 USETW(sc->sc_hub_desc.stat.wStatus, 0); 3154 break; 3155 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3156 if (value >= EHCI_MAX_DEVICES) { 3157 err = USB_ERR_IOERROR; 3158 goto done; 3159 } 3160 sc->sc_addr = value; 3161 break; 3162 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3163 if ((value != 0) && (value != 1)) { 3164 err = USB_ERR_IOERROR; 3165 goto done; 3166 } 3167 sc->sc_conf = value; 3168 break; 3169 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3170 break; 3171 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3172 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3173 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3174 err = USB_ERR_IOERROR; 3175 goto done; 3176 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3177 break; 3178 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3179 break; 3180 /* Hub requests */ 3181 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3182 break; 3183 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3184 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE\n"); 3185 3186 if ((index < 1) || 3187 (index > sc->sc_noport)) { 3188 err = USB_ERR_IOERROR; 3189 goto done; 3190 } 3191 port = EHCI_PORTSC(index); 3192 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3193 switch (value) { 3194 case UHF_PORT_ENABLE: 3195 EOWRITE4(sc, port, v & ~EHCI_PS_PE); 3196 break; 3197 case UHF_PORT_SUSPEND: 3198 if ((v & EHCI_PS_SUSP) && (!(v & EHCI_PS_FPR))) { 3199 3200 /* 3201 * waking up a High Speed device is rather 3202 * complicated if 3203 */ 3204 EOWRITE4(sc, port, v | EHCI_PS_FPR); 3205 } 3206 /* wait 20ms for resume sequence to complete */ 3207 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50); 3208 3209 EOWRITE4(sc, port, v & ~(EHCI_PS_SUSP | 3210 EHCI_PS_FPR | (3 << 10) /* High Speed */ )); 3211 3212 /* 4ms settle time */ 3213 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 250); 3214 break; 3215 case UHF_PORT_POWER: 3216 EOWRITE4(sc, port, v & ~EHCI_PS_PP); 3217 break; 3218 case UHF_PORT_TEST: 3219 DPRINTFN(3, "clear port test " 3220 "%d\n", index); 3221 break; 3222 case UHF_PORT_INDICATOR: 3223 DPRINTFN(3, "clear port ind " 3224 "%d\n", index); 3225 EOWRITE4(sc, port, v & ~EHCI_PS_PIC); 3226 break; 3227 case UHF_C_PORT_CONNECTION: 3228 EOWRITE4(sc, port, v | EHCI_PS_CSC); 3229 break; 3230 case UHF_C_PORT_ENABLE: 3231 EOWRITE4(sc, port, v | EHCI_PS_PEC); 3232 break; 3233 case UHF_C_PORT_SUSPEND: 3234 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 3235 break; 3236 case UHF_C_PORT_OVER_CURRENT: 3237 EOWRITE4(sc, port, v | EHCI_PS_OCC); 3238 break; 3239 case UHF_C_PORT_RESET: 3240 sc->sc_isreset = 0; 3241 break; 3242 default: 3243 err = USB_ERR_IOERROR; 3244 goto done; 3245 } 3246 break; 3247 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3248 if ((value & 0xff) != 0) { 3249 err = USB_ERR_IOERROR; 3250 goto done; 3251 } 3252 v = EREAD4(sc, EHCI_HCSPARAMS); 3253 3254 sc->sc_hub_desc.hubd = ehci_hubd; 3255 sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport; 3256 3257 if (EHCI_HCS_PPC(v)) 3258 i = UHD_PWR_INDIVIDUAL; 3259 else 3260 i = UHD_PWR_NO_SWITCH; 3261 3262 if (EHCI_HCS_P_INDICATOR(v)) 3263 i |= UHD_PORT_IND; 3264 3265 USETW(sc->sc_hub_desc.hubd.wHubCharacteristics, i); 3266 /* XXX can't find out? */ 3267 sc->sc_hub_desc.hubd.bPwrOn2PwrGood = 200; 3268 /* XXX don't know if ports are removable or not */ 3269 sc->sc_hub_desc.hubd.bDescLength = 3270 8 + ((sc->sc_noport + 7) / 8); 3271 len = sc->sc_hub_desc.hubd.bDescLength; 3272 break; 3273 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3274 len = 16; 3275 memset(sc->sc_hub_desc.temp, 0, 16); 3276 break; 3277 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3278 DPRINTFN(9, "get port status i=%d\n", 3279 index); 3280 if ((index < 1) || 3281 (index > sc->sc_noport)) { 3282 err = USB_ERR_IOERROR; 3283 goto done; 3284 } 3285 v = EOREAD4(sc, EHCI_PORTSC(index)); 3286 DPRINTFN(9, "port status=0x%04x\n", v); 3287 if (sc->sc_flags & (EHCI_SCFLG_FORCESPEED | EHCI_SCFLG_TT)) { 3288 if ((v & 0xc000000) == 0x8000000) 3289 i = UPS_HIGH_SPEED; 3290 else if ((v & 0xc000000) == 0x4000000) 3291 i = UPS_LOW_SPEED; 3292 else 3293 i = 0; 3294 } else { 3295 i = UPS_HIGH_SPEED; 3296 } 3297 if (v & EHCI_PS_CS) 3298 i |= UPS_CURRENT_CONNECT_STATUS; 3299 if (v & EHCI_PS_PE) 3300 i |= UPS_PORT_ENABLED; 3301 if ((v & EHCI_PS_SUSP) && !(v & EHCI_PS_FPR)) 3302 i |= UPS_SUSPEND; 3303 if (v & EHCI_PS_OCA) 3304 i |= UPS_OVERCURRENT_INDICATOR; 3305 if (v & EHCI_PS_PR) 3306 i |= UPS_RESET; 3307 if (v & EHCI_PS_PP) 3308 i |= UPS_PORT_POWER; 3309 USETW(sc->sc_hub_desc.ps.wPortStatus, i); 3310 i = 0; 3311 if (v & EHCI_PS_CSC) 3312 i |= UPS_C_CONNECT_STATUS; 3313 if (v & EHCI_PS_PEC) 3314 i |= UPS_C_PORT_ENABLED; 3315 if (v & EHCI_PS_OCC) 3316 i |= UPS_C_OVERCURRENT_INDICATOR; 3317 if (v & EHCI_PS_FPR) 3318 i |= UPS_C_SUSPEND; 3319 if (sc->sc_isreset) 3320 i |= UPS_C_PORT_RESET; 3321 USETW(sc->sc_hub_desc.ps.wPortChange, i); 3322 len = sizeof(sc->sc_hub_desc.ps); 3323 break; 3324 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3325 err = USB_ERR_IOERROR; 3326 goto done; 3327 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3328 break; 3329 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3330 if ((index < 1) || 3331 (index > sc->sc_noport)) { 3332 err = USB_ERR_IOERROR; 3333 goto done; 3334 } 3335 port = EHCI_PORTSC(index); 3336 v = EOREAD4(sc, port) & ~EHCI_PS_CLEAR; 3337 switch (value) { 3338 case UHF_PORT_ENABLE: 3339 EOWRITE4(sc, port, v | EHCI_PS_PE); 3340 break; 3341 case UHF_PORT_SUSPEND: 3342 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 3343 break; 3344 case UHF_PORT_RESET: 3345 DPRINTFN(6, "reset port %d\n", index); 3346 #ifdef USB_DEBUG 3347 if (ehcinohighspeed) { 3348 /* 3349 * Connect USB device to companion 3350 * controller. 3351 */ 3352 ehci_disown(sc, index, 1); 3353 break; 3354 } 3355 #endif 3356 if (EHCI_PS_IS_LOWSPEED(v) && 3357 (sc->sc_flags & EHCI_SCFLG_TT) == 0) { 3358 /* Low speed device, give up ownership. */ 3359 ehci_disown(sc, index, 1); 3360 break; 3361 } 3362 /* Start reset sequence. */ 3363 v &= ~(EHCI_PS_PE | EHCI_PS_PR); 3364 EOWRITE4(sc, port, v | EHCI_PS_PR); 3365 3366 /* Wait for reset to complete. */ 3367 usb_pause_mtx(&sc->sc_bus.bus_mtx, 3368 USB_MS_TO_TICKS(USB_PORT_ROOT_RESET_DELAY)); 3369 3370 /* Terminate reset sequence. */ 3371 if (!(sc->sc_flags & EHCI_SCFLG_NORESTERM)) 3372 EOWRITE4(sc, port, v); 3373 3374 /* Wait for HC to complete reset. */ 3375 usb_pause_mtx(&sc->sc_bus.bus_mtx, 3376 USB_MS_TO_TICKS(EHCI_PORT_RESET_COMPLETE)); 3377 3378 v = EOREAD4(sc, port); 3379 DPRINTF("ehci after reset, status=0x%08x\n", v); 3380 if (v & EHCI_PS_PR) { 3381 device_printf(sc->sc_bus.bdev, 3382 "port reset timeout\n"); 3383 err = USB_ERR_TIMEOUT; 3384 goto done; 3385 } 3386 if (!(v & EHCI_PS_PE) && 3387 (sc->sc_flags & EHCI_SCFLG_TT) == 0) { 3388 /* Not a high speed device, give up ownership.*/ 3389 ehci_disown(sc, index, 0); 3390 break; 3391 } 3392 sc->sc_isreset = 1; 3393 DPRINTF("ehci port %d reset, status = 0x%08x\n", 3394 index, v); 3395 break; 3396 3397 case UHF_PORT_POWER: 3398 DPRINTFN(3, "set port power %d\n", index); 3399 EOWRITE4(sc, port, v | EHCI_PS_PP); 3400 break; 3401 3402 case UHF_PORT_TEST: 3403 DPRINTFN(3, "set port test %d\n", index); 3404 break; 3405 3406 case UHF_PORT_INDICATOR: 3407 DPRINTFN(3, "set port ind %d\n", index); 3408 EOWRITE4(sc, port, v | EHCI_PS_PIC); 3409 break; 3410 3411 default: 3412 err = USB_ERR_IOERROR; 3413 goto done; 3414 } 3415 break; 3416 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): 3417 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): 3418 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): 3419 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 3420 break; 3421 default: 3422 err = USB_ERR_IOERROR; 3423 goto done; 3424 } 3425 done: 3426 *plength = len; 3427 *pptr = ptr; 3428 return (err); 3429 } 3430 3431 static void 3432 ehci_xfer_setup(struct usb_setup_params *parm) 3433 { 3434 struct usb_page_search page_info; 3435 struct usb_page_cache *pc; 3436 ehci_softc_t *sc; 3437 struct usb_xfer *xfer; 3438 void *last_obj; 3439 uint32_t nqtd; 3440 uint32_t nqh; 3441 uint32_t nsitd; 3442 uint32_t nitd; 3443 uint32_t n; 3444 3445 sc = EHCI_BUS2SC(parm->udev->bus); 3446 xfer = parm->curr_xfer; 3447 3448 nqtd = 0; 3449 nqh = 0; 3450 nsitd = 0; 3451 nitd = 0; 3452 3453 /* 3454 * compute maximum number of some structures 3455 */ 3456 if (parm->methods == &ehci_device_ctrl_methods) { 3457 3458 /* 3459 * The proof for the "nqtd" formula is illustrated like 3460 * this: 3461 * 3462 * +------------------------------------+ 3463 * | | 3464 * | |remainder -> | 3465 * | +-----+---+ | 3466 * | | xxx | x | frm 0 | 3467 * | +-----+---++ | 3468 * | | xxx | xx | frm 1 | 3469 * | +-----+----+ | 3470 * | ... | 3471 * +------------------------------------+ 3472 * 3473 * "xxx" means a completely full USB transfer descriptor 3474 * 3475 * "x" and "xx" means a short USB packet 3476 * 3477 * For the remainder of an USB transfer modulo 3478 * "max_data_length" we need two USB transfer descriptors. 3479 * One to transfer the remaining data and one to finalise 3480 * with a zero length packet in case the "force_short_xfer" 3481 * flag is set. We only need two USB transfer descriptors in 3482 * the case where the transfer length of the first one is a 3483 * factor of "max_frame_size". The rest of the needed USB 3484 * transfer descriptors is given by the buffer size divided 3485 * by the maximum data payload. 3486 */ 3487 parm->hc_max_packet_size = 0x400; 3488 parm->hc_max_packet_count = 1; 3489 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3490 xfer->flags_int.bdma_enable = 1; 3491 3492 usbd_transfer_setup_sub(parm); 3493 3494 nqh = 1; 3495 nqtd = ((2 * xfer->nframes) + 1 /* STATUS */ 3496 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3497 3498 } else if (parm->methods == &ehci_device_bulk_methods) { 3499 3500 parm->hc_max_packet_size = 0x400; 3501 parm->hc_max_packet_count = 1; 3502 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3503 xfer->flags_int.bdma_enable = 1; 3504 3505 usbd_transfer_setup_sub(parm); 3506 3507 nqh = 1; 3508 nqtd = ((2 * xfer->nframes) 3509 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3510 3511 } else if (parm->methods == &ehci_device_intr_methods) { 3512 3513 if (parm->speed == USB_SPEED_HIGH) { 3514 parm->hc_max_packet_size = 0x400; 3515 parm->hc_max_packet_count = 3; 3516 } else if (parm->speed == USB_SPEED_FULL) { 3517 parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME; 3518 parm->hc_max_packet_count = 1; 3519 } else { 3520 parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME / 8; 3521 parm->hc_max_packet_count = 1; 3522 } 3523 3524 parm->hc_max_frame_size = EHCI_QTD_PAYLOAD_MAX; 3525 xfer->flags_int.bdma_enable = 1; 3526 3527 usbd_transfer_setup_sub(parm); 3528 3529 nqh = 1; 3530 nqtd = ((2 * xfer->nframes) 3531 + (xfer->max_data_length / xfer->max_hc_frame_size)); 3532 3533 } else if (parm->methods == &ehci_device_isoc_fs_methods) { 3534 3535 parm->hc_max_packet_size = 0x3FF; 3536 parm->hc_max_packet_count = 1; 3537 parm->hc_max_frame_size = 0x3FF; 3538 xfer->flags_int.bdma_enable = 1; 3539 3540 usbd_transfer_setup_sub(parm); 3541 3542 nsitd = xfer->nframes; 3543 3544 } else if (parm->methods == &ehci_device_isoc_hs_methods) { 3545 3546 parm->hc_max_packet_size = 0x400; 3547 parm->hc_max_packet_count = 3; 3548 parm->hc_max_frame_size = 0xC00; 3549 xfer->flags_int.bdma_enable = 1; 3550 3551 usbd_transfer_setup_sub(parm); 3552 3553 nitd = ((xfer->nframes + 7) / 8) << 3554 usbd_xfer_get_fps_shift(xfer); 3555 3556 } else { 3557 3558 parm->hc_max_packet_size = 0x400; 3559 parm->hc_max_packet_count = 1; 3560 parm->hc_max_frame_size = 0x400; 3561 3562 usbd_transfer_setup_sub(parm); 3563 } 3564 3565 alloc_dma_set: 3566 3567 if (parm->err) { 3568 return; 3569 } 3570 /* 3571 * Allocate queue heads and transfer descriptors 3572 */ 3573 last_obj = NULL; 3574 3575 if (usbd_transfer_setup_sub_malloc( 3576 parm, &pc, sizeof(ehci_itd_t), 3577 EHCI_ITD_ALIGN, nitd)) { 3578 parm->err = USB_ERR_NOMEM; 3579 return; 3580 } 3581 if (parm->buf) { 3582 for (n = 0; n != nitd; n++) { 3583 ehci_itd_t *td; 3584 3585 usbd_get_page(pc + n, 0, &page_info); 3586 3587 td = page_info.buffer; 3588 3589 /* init TD */ 3590 td->itd_self = htohc32(sc, page_info.physaddr | EHCI_LINK_ITD); 3591 td->obj_next = last_obj; 3592 td->page_cache = pc + n; 3593 3594 last_obj = td; 3595 3596 usb_pc_cpu_flush(pc + n); 3597 } 3598 } 3599 if (usbd_transfer_setup_sub_malloc( 3600 parm, &pc, sizeof(ehci_sitd_t), 3601 EHCI_SITD_ALIGN, nsitd)) { 3602 parm->err = USB_ERR_NOMEM; 3603 return; 3604 } 3605 if (parm->buf) { 3606 for (n = 0; n != nsitd; n++) { 3607 ehci_sitd_t *td; 3608 3609 usbd_get_page(pc + n, 0, &page_info); 3610 3611 td = page_info.buffer; 3612 3613 /* init TD */ 3614 td->sitd_self = htohc32(sc, page_info.physaddr | EHCI_LINK_SITD); 3615 td->obj_next = last_obj; 3616 td->page_cache = pc + n; 3617 3618 last_obj = td; 3619 3620 usb_pc_cpu_flush(pc + n); 3621 } 3622 } 3623 if (usbd_transfer_setup_sub_malloc( 3624 parm, &pc, sizeof(ehci_qtd_t), 3625 EHCI_QTD_ALIGN, nqtd)) { 3626 parm->err = USB_ERR_NOMEM; 3627 return; 3628 } 3629 if (parm->buf) { 3630 for (n = 0; n != nqtd; n++) { 3631 ehci_qtd_t *qtd; 3632 3633 usbd_get_page(pc + n, 0, &page_info); 3634 3635 qtd = page_info.buffer; 3636 3637 /* init TD */ 3638 qtd->qtd_self = htohc32(sc, page_info.physaddr); 3639 qtd->obj_next = last_obj; 3640 qtd->page_cache = pc + n; 3641 3642 last_obj = qtd; 3643 3644 usb_pc_cpu_flush(pc + n); 3645 } 3646 } 3647 xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj; 3648 3649 last_obj = NULL; 3650 3651 if (usbd_transfer_setup_sub_malloc( 3652 parm, &pc, sizeof(ehci_qh_t), 3653 EHCI_QH_ALIGN, nqh)) { 3654 parm->err = USB_ERR_NOMEM; 3655 return; 3656 } 3657 if (parm->buf) { 3658 for (n = 0; n != nqh; n++) { 3659 ehci_qh_t *qh; 3660 3661 usbd_get_page(pc + n, 0, &page_info); 3662 3663 qh = page_info.buffer; 3664 3665 /* init QH */ 3666 qh->qh_self = htohc32(sc, page_info.physaddr | EHCI_LINK_QH); 3667 qh->obj_next = last_obj; 3668 qh->page_cache = pc + n; 3669 3670 last_obj = qh; 3671 3672 usb_pc_cpu_flush(pc + n); 3673 } 3674 } 3675 xfer->qh_start[xfer->flags_int.curr_dma_set] = last_obj; 3676 3677 if (!xfer->flags_int.curr_dma_set) { 3678 xfer->flags_int.curr_dma_set = 1; 3679 goto alloc_dma_set; 3680 } 3681 } 3682 3683 static void 3684 ehci_xfer_unsetup(struct usb_xfer *xfer) 3685 { 3686 return; 3687 } 3688 3689 static void 3690 ehci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, 3691 struct usb_endpoint *ep) 3692 { 3693 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3694 3695 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n", 3696 ep, udev->address, 3697 edesc->bEndpointAddress, udev->flags.usb_mode, 3698 sc->sc_addr); 3699 3700 if (udev->flags.usb_mode != USB_MODE_HOST) { 3701 /* not supported */ 3702 return; 3703 } 3704 if (udev->device_index != sc->sc_addr) { 3705 3706 if ((udev->speed != USB_SPEED_HIGH) && 3707 ((udev->hs_hub_addr == 0) || 3708 (udev->hs_port_no == 0) || 3709 (udev->parent_hs_hub == NULL) || 3710 (udev->parent_hs_hub->hub == NULL))) { 3711 /* We need a transaction translator */ 3712 goto done; 3713 } 3714 switch (edesc->bmAttributes & UE_XFERTYPE) { 3715 case UE_CONTROL: 3716 ep->methods = &ehci_device_ctrl_methods; 3717 break; 3718 case UE_INTERRUPT: 3719 ep->methods = &ehci_device_intr_methods; 3720 break; 3721 case UE_ISOCHRONOUS: 3722 if (udev->speed == USB_SPEED_HIGH) { 3723 ep->methods = &ehci_device_isoc_hs_methods; 3724 } else if (udev->speed == USB_SPEED_FULL) { 3725 ep->methods = &ehci_device_isoc_fs_methods; 3726 } 3727 break; 3728 case UE_BULK: 3729 ep->methods = &ehci_device_bulk_methods; 3730 break; 3731 default: 3732 /* do nothing */ 3733 break; 3734 } 3735 } 3736 done: 3737 return; 3738 } 3739 3740 static void 3741 ehci_get_dma_delay(struct usb_device *udev, uint32_t *pus) 3742 { 3743 /* 3744 * Wait until the hardware has finished any possible use of 3745 * the transfer descriptor(s) and QH 3746 */ 3747 *pus = (188); /* microseconds */ 3748 } 3749 3750 static void 3751 ehci_device_resume(struct usb_device *udev) 3752 { 3753 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3754 struct usb_xfer *xfer; 3755 struct usb_pipe_methods *methods; 3756 3757 DPRINTF("\n"); 3758 3759 USB_BUS_LOCK(udev->bus); 3760 3761 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3762 3763 if (xfer->xroot->udev == udev) { 3764 3765 methods = xfer->endpoint->methods; 3766 3767 if ((methods == &ehci_device_bulk_methods) || 3768 (methods == &ehci_device_ctrl_methods)) { 3769 EHCI_APPEND_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3770 sc->sc_async_p_last); 3771 } 3772 if (methods == &ehci_device_intr_methods) { 3773 EHCI_APPEND_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3774 sc->sc_intr_p_last[xfer->qh_pos]); 3775 } 3776 } 3777 } 3778 3779 USB_BUS_UNLOCK(udev->bus); 3780 3781 return; 3782 } 3783 3784 static void 3785 ehci_device_suspend(struct usb_device *udev) 3786 { 3787 ehci_softc_t *sc = EHCI_BUS2SC(udev->bus); 3788 struct usb_xfer *xfer; 3789 struct usb_pipe_methods *methods; 3790 3791 DPRINTF("\n"); 3792 3793 USB_BUS_LOCK(udev->bus); 3794 3795 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 3796 3797 if (xfer->xroot->udev == udev) { 3798 3799 methods = xfer->endpoint->methods; 3800 3801 if ((methods == &ehci_device_bulk_methods) || 3802 (methods == &ehci_device_ctrl_methods)) { 3803 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3804 sc->sc_async_p_last); 3805 } 3806 if (methods == &ehci_device_intr_methods) { 3807 EHCI_REMOVE_QH(xfer->qh_start[xfer->flags_int.curr_dma_set], 3808 sc->sc_intr_p_last[xfer->qh_pos]); 3809 } 3810 } 3811 } 3812 3813 USB_BUS_UNLOCK(udev->bus); 3814 } 3815 3816 static void 3817 ehci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) 3818 { 3819 struct ehci_softc *sc = EHCI_BUS2SC(bus); 3820 3821 switch (state) { 3822 case USB_HW_POWER_SUSPEND: 3823 case USB_HW_POWER_SHUTDOWN: 3824 ehci_suspend(sc); 3825 break; 3826 case USB_HW_POWER_RESUME: 3827 ehci_resume(sc); 3828 break; 3829 default: 3830 break; 3831 } 3832 } 3833 3834 static void 3835 ehci_set_hw_power(struct usb_bus *bus) 3836 { 3837 ehci_softc_t *sc = EHCI_BUS2SC(bus); 3838 uint32_t temp; 3839 uint32_t flags; 3840 3841 DPRINTF("\n"); 3842 3843 USB_BUS_LOCK(bus); 3844 3845 flags = bus->hw_power_state; 3846 3847 temp = EOREAD4(sc, EHCI_USBCMD); 3848 3849 temp &= ~(EHCI_CMD_ASE | EHCI_CMD_PSE); 3850 3851 if (flags & (USB_HW_POWER_CONTROL | 3852 USB_HW_POWER_BULK)) { 3853 DPRINTF("Async is active\n"); 3854 temp |= EHCI_CMD_ASE; 3855 } 3856 if (flags & (USB_HW_POWER_INTERRUPT | 3857 USB_HW_POWER_ISOC)) { 3858 DPRINTF("Periodic is active\n"); 3859 temp |= EHCI_CMD_PSE; 3860 } 3861 EOWRITE4(sc, EHCI_USBCMD, temp); 3862 3863 USB_BUS_UNLOCK(bus); 3864 3865 return; 3866 } 3867 3868 struct usb_bus_methods ehci_bus_methods = 3869 { 3870 .endpoint_init = ehci_ep_init, 3871 .xfer_setup = ehci_xfer_setup, 3872 .xfer_unsetup = ehci_xfer_unsetup, 3873 .get_dma_delay = ehci_get_dma_delay, 3874 .device_resume = ehci_device_resume, 3875 .device_suspend = ehci_device_suspend, 3876 .set_hw_power = ehci_set_hw_power, 3877 .set_hw_power_sleep = ehci_set_hw_power_sleep, 3878 .roothub_exec = ehci_roothub_exec, 3879 .xfer_poll = ehci_do_poll, 3880 }; 3881