1 /* $NetBSD: uhci.c,v 1.200 2006/09/24 03:54:00 jmcneill Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.200 2006/09/24 03:54:00 jmcneill Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data stored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 int isread; 149 uhci_soft_qh_t **qhs; 150 } intr; 151 /* Bulk pipe */ 152 struct { 153 uhci_soft_qh_t *sqh; 154 u_int length; 155 int isread; 156 } bulk; 157 /* Iso pipe */ 158 struct iso { 159 uhci_soft_td_t **stds; 160 int next, inuse; 161 } iso; 162 } u; 163 }; 164 165 Static void uhci_globalreset(uhci_softc_t *); 166 Static usbd_status uhci_portreset(uhci_softc_t*, int); 167 Static void uhci_reset(uhci_softc_t *); 168 Static void uhci_shutdown(void *v); 169 Static void uhci_power(int, void *); 170 Static usbd_status uhci_run(uhci_softc_t *, int run); 171 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 172 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 173 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 174 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 175 #if 0 176 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 177 uhci_intr_info_t *); 178 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 179 #endif 180 181 Static void uhci_free_std_chain(uhci_softc_t *, 182 uhci_soft_td_t *, uhci_soft_td_t *); 183 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 184 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 185 uhci_soft_td_t **, uhci_soft_td_t **); 186 Static void uhci_poll_hub(void *); 187 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 188 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 189 Static void uhci_idone(uhci_intr_info_t *); 190 191 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 192 193 Static void uhci_timeout(void *); 194 Static void uhci_timeout_task(void *); 195 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 198 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 200 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 201 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 202 Static void uhci_add_loop(uhci_softc_t *sc); 203 Static void uhci_rem_loop(uhci_softc_t *sc); 204 205 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 206 Static void uhci_device_isoc_enter(usbd_xfer_handle); 207 208 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 209 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 210 211 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 212 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 213 214 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 216 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 217 Static void uhci_device_ctrl_close(usbd_pipe_handle); 218 Static void uhci_device_ctrl_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 222 Static void uhci_device_intr_abort(usbd_xfer_handle); 223 Static void uhci_device_intr_close(usbd_pipe_handle); 224 Static void uhci_device_intr_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 228 Static void uhci_device_bulk_abort(usbd_xfer_handle); 229 Static void uhci_device_bulk_close(usbd_pipe_handle); 230 Static void uhci_device_bulk_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 233 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 234 Static void uhci_device_isoc_abort(usbd_xfer_handle); 235 Static void uhci_device_isoc_close(usbd_pipe_handle); 236 Static void uhci_device_isoc_done(usbd_xfer_handle); 237 238 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 239 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 240 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 241 Static void uhci_root_ctrl_close(usbd_pipe_handle); 242 Static void uhci_root_ctrl_done(usbd_xfer_handle); 243 244 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 245 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 246 Static void uhci_root_intr_abort(usbd_xfer_handle); 247 Static void uhci_root_intr_close(usbd_pipe_handle); 248 Static void uhci_root_intr_done(usbd_xfer_handle); 249 250 Static usbd_status uhci_open(usbd_pipe_handle); 251 Static void uhci_poll(struct usbd_bus *); 252 Static void uhci_softintr(void *); 253 254 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 255 256 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 258 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 259 struct uhci_pipe *pipe, int ival); 260 261 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 262 Static void uhci_noop(usbd_pipe_handle pipe); 263 264 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 265 uhci_soft_qh_t *); 266 267 #ifdef UHCI_DEBUG 268 Static void uhci_dump_all(uhci_softc_t *); 269 Static void uhci_dumpregs(uhci_softc_t *); 270 Static void uhci_dump_qhs(uhci_soft_qh_t *); 271 Static void uhci_dump_qh(uhci_soft_qh_t *); 272 Static void uhci_dump_tds(uhci_soft_td_t *); 273 Static void uhci_dump_td(uhci_soft_td_t *); 274 Static void uhci_dump_ii(uhci_intr_info_t *ii); 275 void uhci_dump(void); 276 #endif 277 278 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 279 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 280 #define UWRITE1(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE2(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UWRITE4(sc, r, x) \ 287 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 288 } while (/*CONSTCOND*/0) 289 static __inline uint8_t 290 UREAD1(uhci_softc_t *sc, bus_size_t r) 291 { 292 293 UBARR(sc); 294 return bus_space_read_1(sc->iot, sc->ioh, r); 295 } 296 297 static __inline uint16_t 298 UREAD2(uhci_softc_t *sc, bus_size_t r) 299 { 300 301 UBARR(sc); 302 return bus_space_read_2(sc->iot, sc->ioh, r); 303 } 304 305 static __inline uint32_t 306 UREAD4(uhci_softc_t *sc, bus_size_t r) 307 { 308 309 UBARR(sc); 310 return bus_space_read_4(sc->iot, sc->ioh, r); 311 } 312 313 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 314 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 315 316 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 317 318 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 319 320 #define UHCI_INTR_ENDPT 1 321 322 struct usbd_bus_methods uhci_bus_methods = { 323 uhci_open, 324 uhci_softintr, 325 uhci_poll, 326 uhci_allocm, 327 uhci_freem, 328 uhci_allocx, 329 uhci_freex, 330 }; 331 332 struct usbd_pipe_methods uhci_root_ctrl_methods = { 333 uhci_root_ctrl_transfer, 334 uhci_root_ctrl_start, 335 uhci_root_ctrl_abort, 336 uhci_root_ctrl_close, 337 uhci_noop, 338 uhci_root_ctrl_done, 339 }; 340 341 struct usbd_pipe_methods uhci_root_intr_methods = { 342 uhci_root_intr_transfer, 343 uhci_root_intr_start, 344 uhci_root_intr_abort, 345 uhci_root_intr_close, 346 uhci_noop, 347 uhci_root_intr_done, 348 }; 349 350 struct usbd_pipe_methods uhci_device_ctrl_methods = { 351 uhci_device_ctrl_transfer, 352 uhci_device_ctrl_start, 353 uhci_device_ctrl_abort, 354 uhci_device_ctrl_close, 355 uhci_noop, 356 uhci_device_ctrl_done, 357 }; 358 359 struct usbd_pipe_methods uhci_device_intr_methods = { 360 uhci_device_intr_transfer, 361 uhci_device_intr_start, 362 uhci_device_intr_abort, 363 uhci_device_intr_close, 364 uhci_device_clear_toggle, 365 uhci_device_intr_done, 366 }; 367 368 struct usbd_pipe_methods uhci_device_bulk_methods = { 369 uhci_device_bulk_transfer, 370 uhci_device_bulk_start, 371 uhci_device_bulk_abort, 372 uhci_device_bulk_close, 373 uhci_device_clear_toggle, 374 uhci_device_bulk_done, 375 }; 376 377 struct usbd_pipe_methods uhci_device_isoc_methods = { 378 uhci_device_isoc_transfer, 379 uhci_device_isoc_start, 380 uhci_device_isoc_abort, 381 uhci_device_isoc_close, 382 uhci_noop, 383 uhci_device_isoc_done, 384 }; 385 386 #define uhci_add_intr_info(sc, ii) \ 387 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 388 #define uhci_del_intr_info(ii) \ 389 do { \ 390 LIST_REMOVE((ii), list); \ 391 (ii)->list.le_prev = NULL; \ 392 } while (0) 393 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 394 395 Static inline uhci_soft_qh_t * 396 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 397 { 398 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 399 400 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 401 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 402 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 403 printf("uhci_find_prev_qh: QH not found\n"); 404 return (NULL); 405 } 406 #endif 407 } 408 return (pqh); 409 } 410 411 void 412 uhci_globalreset(uhci_softc_t *sc) 413 { 414 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 415 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 416 UHCICMD(sc, 0); /* do nothing */ 417 } 418 419 usbd_status 420 uhci_init(uhci_softc_t *sc) 421 { 422 usbd_status err; 423 int i, j; 424 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 425 uhci_soft_td_t *std; 426 427 DPRINTFN(1,("uhci_init: start\n")); 428 429 #ifdef UHCI_DEBUG 430 thesc = sc; 431 432 if (uhcidebug > 2) 433 uhci_dumpregs(sc); 434 #endif 435 436 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 437 uhci_globalreset(sc); /* reset the controller */ 438 uhci_reset(sc); 439 440 #ifdef __NetBSD__ 441 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 442 USB_MEM_RESERVE); 443 #endif 444 445 /* Allocate and initialize real frame array. */ 446 err = usb_allocmem(&sc->sc_bus, 447 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 448 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 449 if (err) 450 return (err); 451 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 452 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 453 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 454 455 /* 456 * Allocate a TD, inactive, that hangs from the last QH. 457 * This is to avoid a bug in the PIIX that makes it run berserk 458 * otherwise. 459 */ 460 std = uhci_alloc_std(sc); 461 if (std == NULL) 462 return (USBD_NOMEM); 463 std->link.std = NULL; 464 std->td.td_link = htole32(UHCI_PTR_T); 465 std->td.td_status = htole32(0); /* inactive */ 466 std->td.td_token = htole32(0); 467 std->td.td_buffer = htole32(0); 468 469 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 470 lsqh = uhci_alloc_sqh(sc); 471 if (lsqh == NULL) 472 return (USBD_NOMEM); 473 lsqh->hlink = NULL; 474 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 475 lsqh->elink = std; 476 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 477 sc->sc_last_qh = lsqh; 478 479 /* Allocate the dummy QH where bulk traffic will be queued. */ 480 bsqh = uhci_alloc_sqh(sc); 481 if (bsqh == NULL) 482 return (USBD_NOMEM); 483 bsqh->hlink = lsqh; 484 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 485 bsqh->elink = NULL; 486 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 487 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 488 489 /* Allocate dummy QH where high speed control traffic will be queued. */ 490 chsqh = uhci_alloc_sqh(sc); 491 if (chsqh == NULL) 492 return (USBD_NOMEM); 493 chsqh->hlink = bsqh; 494 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 495 chsqh->elink = NULL; 496 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 497 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 498 499 /* Allocate dummy QH where control traffic will be queued. */ 500 clsqh = uhci_alloc_sqh(sc); 501 if (clsqh == NULL) 502 return (USBD_NOMEM); 503 clsqh->hlink = bsqh; 504 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 505 clsqh->elink = NULL; 506 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 507 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 508 509 /* 510 * Make all (virtual) frame list pointers point to the interrupt 511 * queue heads and the interrupt queue heads at the control 512 * queue head and point the physical frame list to the virtual. 513 */ 514 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 515 std = uhci_alloc_std(sc); 516 sqh = uhci_alloc_sqh(sc); 517 if (std == NULL || sqh == NULL) 518 return (USBD_NOMEM); 519 std->link.sqh = sqh; 520 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 521 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 522 std->td.td_token = htole32(0); 523 std->td.td_buffer = htole32(0); 524 sqh->hlink = clsqh; 525 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 526 sqh->elink = NULL; 527 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 528 sc->sc_vframes[i].htd = std; 529 sc->sc_vframes[i].etd = std; 530 sc->sc_vframes[i].hqh = sqh; 531 sc->sc_vframes[i].eqh = sqh; 532 for (j = i; 533 j < UHCI_FRAMELIST_COUNT; 534 j += UHCI_VFRAMELIST_COUNT) 535 sc->sc_pframes[j] = htole32(std->physaddr); 536 } 537 538 LIST_INIT(&sc->sc_intrhead); 539 540 SIMPLEQ_INIT(&sc->sc_free_xfers); 541 542 usb_callout_init(sc->sc_poll_handle); 543 544 /* Set up the bus struct. */ 545 sc->sc_bus.methods = &uhci_bus_methods; 546 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 547 548 #if defined(__NetBSD__) || defined(__OpenBSD__) 549 sc->sc_suspend = PWR_RESUME; 550 sc->sc_powerhook = powerhook_establish(USBDEVNAME(sc->sc_bus.bdev), 551 uhci_power, sc); 552 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 553 #endif 554 555 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 556 557 DPRINTFN(1,("uhci_init: enabling\n")); 558 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 559 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 560 561 return (uhci_run(sc, 1)); /* and here we go... */ 562 } 563 564 #if defined(__NetBSD__) || defined(__OpenBSD__) 565 int 566 uhci_activate(device_ptr_t self, enum devact act) 567 { 568 struct uhci_softc *sc = (struct uhci_softc *)self; 569 int rv = 0; 570 571 switch (act) { 572 case DVACT_ACTIVATE: 573 return (EOPNOTSUPP); 574 575 case DVACT_DEACTIVATE: 576 if (sc->sc_child != NULL) 577 rv = config_deactivate(sc->sc_child); 578 break; 579 } 580 return (rv); 581 } 582 583 int 584 uhci_detach(struct uhci_softc *sc, int flags) 585 { 586 usbd_xfer_handle xfer; 587 int rv = 0; 588 589 if (sc->sc_child != NULL) 590 rv = config_detach(sc->sc_child, flags); 591 592 if (rv != 0) 593 return (rv); 594 595 #if defined(__NetBSD__) || defined(__OpenBSD__) 596 powerhook_disestablish(sc->sc_powerhook); 597 shutdownhook_disestablish(sc->sc_shutdownhook); 598 #endif 599 600 /* Free all xfers associated with this HC. */ 601 for (;;) { 602 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 603 if (xfer == NULL) 604 break; 605 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 606 free(xfer, M_USB); 607 } 608 609 /* XXX free other data structures XXX */ 610 611 return (rv); 612 } 613 #endif 614 615 usbd_status 616 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 617 { 618 struct uhci_softc *sc = (struct uhci_softc *)bus; 619 usbd_status status; 620 u_int32_t n; 621 622 /* 623 * XXX 624 * Since we are allocating a buffer we can assume that we will 625 * need TDs for it. Since we don't want to allocate those from 626 * an interrupt context, we allocate them here and free them again. 627 * This is no guarantee that we'll get the TDs next time... 628 */ 629 n = size / 8; 630 if (n > 16) { 631 u_int32_t i; 632 uhci_soft_td_t **stds; 633 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 634 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 635 M_WAITOK|M_ZERO); 636 for(i=0; i < n; i++) 637 stds[i] = uhci_alloc_std(sc); 638 for(i=0; i < n; i++) 639 if (stds[i] != NULL) 640 uhci_free_std(sc, stds[i]); 641 free(stds, M_TEMP); 642 } 643 644 645 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 646 #ifdef __NetBSD__ 647 if (status == USBD_NOMEM) 648 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 649 #endif 650 return status; 651 } 652 653 void 654 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 655 { 656 #ifdef __NetBSD__ 657 if (dma->block->flags & USB_DMA_RESERVE) { 658 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 659 dma); 660 return; 661 } 662 #endif 663 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 664 } 665 666 usbd_xfer_handle 667 uhci_allocx(struct usbd_bus *bus) 668 { 669 struct uhci_softc *sc = (struct uhci_softc *)bus; 670 usbd_xfer_handle xfer; 671 672 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 673 if (xfer != NULL) { 674 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 675 #ifdef DIAGNOSTIC 676 if (xfer->busy_free != XFER_FREE) { 677 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 678 xfer->busy_free); 679 } 680 #endif 681 } else { 682 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 683 } 684 if (xfer != NULL) { 685 memset(xfer, 0, sizeof (struct uhci_xfer)); 686 UXFER(xfer)->iinfo.sc = sc; 687 #ifdef DIAGNOSTIC 688 UXFER(xfer)->iinfo.isdone = 1; 689 xfer->busy_free = XFER_BUSY; 690 #endif 691 } 692 return (xfer); 693 } 694 695 void 696 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 697 { 698 struct uhci_softc *sc = (struct uhci_softc *)bus; 699 700 #ifdef DIAGNOSTIC 701 if (xfer->busy_free != XFER_BUSY) { 702 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 703 xfer->busy_free); 704 return; 705 } 706 xfer->busy_free = XFER_FREE; 707 if (!UXFER(xfer)->iinfo.isdone) { 708 printf("uhci_freex: !isdone\n"); 709 return; 710 } 711 #endif 712 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 713 } 714 715 /* 716 * Shut down the controller when the system is going down. 717 */ 718 void 719 uhci_shutdown(void *v) 720 { 721 uhci_softc_t *sc = v; 722 int s; 723 724 DPRINTF(("uhci_shutdown: stopping the HC\n")); 725 726 /* 727 * Use polling mode to prevent the interrupts shutting 728 * us down before we shut them down. 729 */ 730 s = splhardusb(); 731 sc->sc_bus.use_polling++; 732 uhci_run(sc, 0); /* stop the controller */ 733 sc->sc_bus.use_polling--; 734 splx(s); 735 } 736 737 /* 738 * Handle suspend/resume. 739 * 740 * We need to switch to polling mode here, because this routine is 741 * called from an interrupt context. This is all right since we 742 * are almost suspended anyway. 743 */ 744 void 745 uhci_power(int why, void *v) 746 { 747 uhci_softc_t *sc = v; 748 int cmd; 749 int s; 750 751 s = splhardusb(); 752 cmd = UREAD2(sc, UHCI_CMD); 753 754 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 755 sc, why, sc->sc_suspend, cmd)); 756 757 switch (why) { 758 case PWR_SUSPEND: 759 case PWR_STANDBY: 760 #ifdef UHCI_DEBUG 761 if (uhcidebug > 2) 762 uhci_dumpregs(sc); 763 #endif 764 if (sc->sc_intr_xfer != NULL) 765 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 766 sc->sc_intr_xfer); 767 sc->sc_bus.use_polling++; 768 uhci_run(sc, 0); /* stop the controller */ 769 770 /* save some state if BIOS doesn't */ 771 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 772 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 773 774 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 775 776 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 777 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 778 sc->sc_suspend = why; 779 sc->sc_bus.use_polling--; 780 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 781 break; 782 case PWR_RESUME: 783 #ifdef DIAGNOSTIC 784 if (sc->sc_suspend == PWR_RESUME) 785 printf("uhci_power: weird, resume without suspend.\n"); 786 #endif 787 sc->sc_bus.use_polling++; 788 sc->sc_suspend = why; 789 if (cmd & UHCI_CMD_RS) 790 uhci_run(sc, 0); /* in case BIOS has started it */ 791 792 /* restore saved state */ 793 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 794 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 795 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 796 797 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 798 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 799 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 800 UHCICMD(sc, UHCI_CMD_MAXP); 801 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 802 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 803 uhci_run(sc, 1); /* and start traffic again */ 804 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 805 sc->sc_bus.use_polling--; 806 if (sc->sc_intr_xfer != NULL) 807 usb_callout(sc->sc_poll_handle, sc->sc_ival, 808 uhci_poll_hub, sc->sc_intr_xfer); 809 #ifdef UHCI_DEBUG 810 if (uhcidebug > 2) 811 uhci_dumpregs(sc); 812 #endif 813 break; 814 case PWR_SOFTSUSPEND: 815 case PWR_SOFTSTANDBY: 816 case PWR_SOFTRESUME: 817 break; 818 } 819 splx(s); 820 } 821 822 #ifdef UHCI_DEBUG 823 Static void 824 uhci_dumpregs(uhci_softc_t *sc) 825 { 826 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 827 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 828 USBDEVNAME(sc->sc_bus.bdev), 829 UREAD2(sc, UHCI_CMD), 830 UREAD2(sc, UHCI_STS), 831 UREAD2(sc, UHCI_INTR), 832 UREAD2(sc, UHCI_FRNUM), 833 UREAD4(sc, UHCI_FLBASEADDR), 834 UREAD1(sc, UHCI_SOF), 835 UREAD2(sc, UHCI_PORTSC1), 836 UREAD2(sc, UHCI_PORTSC2))); 837 } 838 839 void 840 uhci_dump_td(uhci_soft_td_t *p) 841 { 842 char sbuf[128], sbuf2[128]; 843 844 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 845 "token=0x%08lx buffer=0x%08lx\n", 846 p, (long)p->physaddr, 847 (long)le32toh(p->td.td_link), 848 (long)le32toh(p->td.td_status), 849 (long)le32toh(p->td.td_token), 850 (long)le32toh(p->td.td_buffer))); 851 852 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 853 sbuf, sizeof(sbuf)); 854 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 855 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 856 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 857 sbuf2, sizeof(sbuf2)); 858 859 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 860 "D=%d,maxlen=%d\n", sbuf, sbuf2, 861 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 862 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 863 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 864 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 865 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 866 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 867 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 868 } 869 870 void 871 uhci_dump_qh(uhci_soft_qh_t *sqh) 872 { 873 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 874 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 875 le32toh(sqh->qh.qh_elink))); 876 } 877 878 879 #if 1 880 void 881 uhci_dump(void) 882 { 883 uhci_dump_all(thesc); 884 } 885 #endif 886 887 void 888 uhci_dump_all(uhci_softc_t *sc) 889 { 890 uhci_dumpregs(sc); 891 printf("intrs=%d\n", sc->sc_bus.no_intrs); 892 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 893 uhci_dump_qh(sc->sc_lctl_start); 894 } 895 896 897 void 898 uhci_dump_qhs(uhci_soft_qh_t *sqh) 899 { 900 uhci_dump_qh(sqh); 901 902 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 903 * Traverses sideways first, then down. 904 * 905 * QH1 906 * QH2 907 * No QH 908 * TD2.1 909 * TD2.2 910 * TD1.1 911 * etc. 912 * 913 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 914 */ 915 916 917 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 918 uhci_dump_qhs(sqh->hlink); 919 else 920 DPRINTF(("No QH\n")); 921 922 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 923 uhci_dump_tds(sqh->elink); 924 else 925 DPRINTF(("No TD\n")); 926 } 927 928 void 929 uhci_dump_tds(uhci_soft_td_t *std) 930 { 931 uhci_soft_td_t *td; 932 933 for(td = std; td != NULL; td = td->link.std) { 934 uhci_dump_td(td); 935 936 /* Check whether the link pointer in this TD marks 937 * the link pointer as end of queue. This avoids 938 * printing the free list in case the queue/TD has 939 * already been moved there (seatbelt). 940 */ 941 if (le32toh(td->td.td_link) & UHCI_PTR_T || 942 le32toh(td->td.td_link) == 0) 943 break; 944 } 945 } 946 947 Static void 948 uhci_dump_ii(uhci_intr_info_t *ii) 949 { 950 usbd_pipe_handle pipe; 951 usb_endpoint_descriptor_t *ed; 952 usbd_device_handle dev; 953 954 #ifdef DIAGNOSTIC 955 #define DONE ii->isdone 956 #else 957 #define DONE 0 958 #endif 959 if (ii == NULL) { 960 printf("ii NULL\n"); 961 return; 962 } 963 if (ii->xfer == NULL) { 964 printf("ii %p: done=%d xfer=NULL\n", 965 ii, DONE); 966 return; 967 } 968 pipe = ii->xfer->pipe; 969 if (pipe == NULL) { 970 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 971 ii, DONE, ii->xfer); 972 return; 973 } 974 if (pipe->endpoint == NULL) { 975 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 976 ii, DONE, ii->xfer, pipe); 977 return; 978 } 979 if (pipe->device == NULL) { 980 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 981 ii, DONE, ii->xfer, pipe); 982 return; 983 } 984 ed = pipe->endpoint->edesc; 985 dev = pipe->device; 986 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 987 ii, DONE, ii->xfer, dev, 988 UGETW(dev->ddesc.idVendor), 989 UGETW(dev->ddesc.idProduct), 990 dev->address, pipe, 991 ed->bEndpointAddress, ed->bmAttributes); 992 #undef DONE 993 } 994 995 void uhci_dump_iis(struct uhci_softc *sc); 996 void 997 uhci_dump_iis(struct uhci_softc *sc) 998 { 999 uhci_intr_info_t *ii; 1000 1001 printf("intr_info list:\n"); 1002 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1003 uhci_dump_ii(ii); 1004 } 1005 1006 void iidump(void); 1007 void iidump(void) { uhci_dump_iis(thesc); } 1008 1009 #endif 1010 1011 /* 1012 * This routine is executed periodically and simulates interrupts 1013 * from the root controller interrupt pipe for port status change. 1014 */ 1015 void 1016 uhci_poll_hub(void *addr) 1017 { 1018 usbd_xfer_handle xfer = addr; 1019 usbd_pipe_handle pipe = xfer->pipe; 1020 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1021 int s; 1022 u_char *p; 1023 1024 DPRINTFN(20, ("uhci_poll_hub\n")); 1025 1026 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1027 1028 p = KERNADDR(&xfer->dmabuf, 0); 1029 p[0] = 0; 1030 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1031 p[0] |= 1<<1; 1032 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1033 p[0] |= 1<<2; 1034 if (p[0] == 0) 1035 /* No change, try again in a while */ 1036 return; 1037 1038 xfer->actlen = 1; 1039 xfer->status = USBD_NORMAL_COMPLETION; 1040 s = splusb(); 1041 xfer->device->bus->intr_context++; 1042 usb_transfer_complete(xfer); 1043 xfer->device->bus->intr_context--; 1044 splx(s); 1045 } 1046 1047 void 1048 uhci_root_intr_done(usbd_xfer_handle xfer) 1049 { 1050 } 1051 1052 void 1053 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1054 { 1055 } 1056 1057 /* 1058 * Let the last QH loop back to the high speed control transfer QH. 1059 * This is what intel calls "bandwidth reclamation" and improves 1060 * USB performance a lot for some devices. 1061 * If we are already looping, just count it. 1062 */ 1063 void 1064 uhci_add_loop(uhci_softc_t *sc) { 1065 #ifdef UHCI_DEBUG 1066 if (uhcinoloop) 1067 return; 1068 #endif 1069 if (++sc->sc_loops == 1) { 1070 DPRINTFN(5,("uhci_start_loop: add\n")); 1071 /* Note, we don't loop back the soft pointer. */ 1072 sc->sc_last_qh->qh.qh_hlink = 1073 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1074 } 1075 } 1076 1077 void 1078 uhci_rem_loop(uhci_softc_t *sc) { 1079 #ifdef UHCI_DEBUG 1080 if (uhcinoloop) 1081 return; 1082 #endif 1083 if (--sc->sc_loops == 0) { 1084 DPRINTFN(5,("uhci_end_loop: remove\n")); 1085 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1086 } 1087 } 1088 1089 /* Add high speed control QH, called at splusb(). */ 1090 void 1091 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1092 { 1093 uhci_soft_qh_t *eqh; 1094 1095 SPLUSBCHECK; 1096 1097 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1098 eqh = sc->sc_hctl_end; 1099 sqh->hlink = eqh->hlink; 1100 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1101 eqh->hlink = sqh; 1102 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1103 sc->sc_hctl_end = sqh; 1104 #ifdef UHCI_CTL_LOOP 1105 uhci_add_loop(sc); 1106 #endif 1107 } 1108 1109 /* Remove high speed control QH, called at splusb(). */ 1110 void 1111 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1112 { 1113 uhci_soft_qh_t *pqh; 1114 1115 SPLUSBCHECK; 1116 1117 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1118 #ifdef UHCI_CTL_LOOP 1119 uhci_rem_loop(sc); 1120 #endif 1121 /* 1122 * The T bit should be set in the elink of the QH so that the HC 1123 * doesn't follow the pointer. This condition may fail if the 1124 * the transferred packet was short so that the QH still points 1125 * at the last used TD. 1126 * In this case we set the T bit and wait a little for the HC 1127 * to stop looking at the TD. 1128 */ 1129 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1130 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1131 delay(UHCI_QH_REMOVE_DELAY); 1132 } 1133 1134 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1135 pqh->hlink = sqh->hlink; 1136 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1137 delay(UHCI_QH_REMOVE_DELAY); 1138 if (sc->sc_hctl_end == sqh) 1139 sc->sc_hctl_end = pqh; 1140 } 1141 1142 /* Add low speed control QH, called at splusb(). */ 1143 void 1144 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1145 { 1146 uhci_soft_qh_t *eqh; 1147 1148 SPLUSBCHECK; 1149 1150 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1151 eqh = sc->sc_lctl_end; 1152 sqh->hlink = eqh->hlink; 1153 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1154 eqh->hlink = sqh; 1155 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1156 sc->sc_lctl_end = sqh; 1157 } 1158 1159 /* Remove low speed control QH, called at splusb(). */ 1160 void 1161 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1162 { 1163 uhci_soft_qh_t *pqh; 1164 1165 SPLUSBCHECK; 1166 1167 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1168 /* See comment in uhci_remove_hs_ctrl() */ 1169 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1170 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1171 delay(UHCI_QH_REMOVE_DELAY); 1172 } 1173 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1174 pqh->hlink = sqh->hlink; 1175 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1176 delay(UHCI_QH_REMOVE_DELAY); 1177 if (sc->sc_lctl_end == sqh) 1178 sc->sc_lctl_end = pqh; 1179 } 1180 1181 /* Add bulk QH, called at splusb(). */ 1182 void 1183 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1184 { 1185 uhci_soft_qh_t *eqh; 1186 1187 SPLUSBCHECK; 1188 1189 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1190 eqh = sc->sc_bulk_end; 1191 sqh->hlink = eqh->hlink; 1192 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1193 eqh->hlink = sqh; 1194 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1195 sc->sc_bulk_end = sqh; 1196 uhci_add_loop(sc); 1197 } 1198 1199 /* Remove bulk QH, called at splusb(). */ 1200 void 1201 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1202 { 1203 uhci_soft_qh_t *pqh; 1204 1205 SPLUSBCHECK; 1206 1207 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1208 uhci_rem_loop(sc); 1209 /* See comment in uhci_remove_hs_ctrl() */ 1210 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1211 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1212 delay(UHCI_QH_REMOVE_DELAY); 1213 } 1214 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1215 pqh->hlink = sqh->hlink; 1216 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1217 delay(UHCI_QH_REMOVE_DELAY); 1218 if (sc->sc_bulk_end == sqh) 1219 sc->sc_bulk_end = pqh; 1220 } 1221 1222 Static int uhci_intr1(uhci_softc_t *); 1223 1224 int 1225 uhci_intr(void *arg) 1226 { 1227 uhci_softc_t *sc = arg; 1228 1229 if (sc->sc_dying) 1230 return (0); 1231 1232 if (sc->sc_bus.use_polling) { 1233 #ifdef DIAGNOSTIC 1234 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1235 #endif 1236 return (0); 1237 } 1238 1239 return (uhci_intr1(sc)); 1240 } 1241 1242 int 1243 uhci_intr1(uhci_softc_t *sc) 1244 { 1245 int status; 1246 int ack; 1247 1248 #ifdef UHCI_DEBUG 1249 if (uhcidebug > 15) { 1250 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1251 uhci_dumpregs(sc); 1252 } 1253 #endif 1254 1255 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1256 if (status == 0) /* The interrupt was not for us. */ 1257 return (0); 1258 1259 if (sc->sc_suspend != PWR_RESUME) { 1260 printf("%s: interrupt while not operating ignored\n", 1261 USBDEVNAME(sc->sc_bus.bdev)); 1262 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1263 return (0); 1264 } 1265 1266 ack = 0; 1267 if (status & UHCI_STS_USBINT) 1268 ack |= UHCI_STS_USBINT; 1269 if (status & UHCI_STS_USBEI) 1270 ack |= UHCI_STS_USBEI; 1271 if (status & UHCI_STS_RD) { 1272 ack |= UHCI_STS_RD; 1273 #ifdef UHCI_DEBUG 1274 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1275 #endif 1276 } 1277 if (status & UHCI_STS_HSE) { 1278 ack |= UHCI_STS_HSE; 1279 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1280 } 1281 if (status & UHCI_STS_HCPE) { 1282 ack |= UHCI_STS_HCPE; 1283 printf("%s: host controller process error\n", 1284 USBDEVNAME(sc->sc_bus.bdev)); 1285 } 1286 if (status & UHCI_STS_HCH) { 1287 /* no acknowledge needed */ 1288 if (!sc->sc_dying) { 1289 printf("%s: host controller halted\n", 1290 USBDEVNAME(sc->sc_bus.bdev)); 1291 #ifdef UHCI_DEBUG 1292 uhci_dump_all(sc); 1293 #endif 1294 } 1295 sc->sc_dying = 1; 1296 } 1297 1298 if (!ack) 1299 return (0); /* nothing to acknowledge */ 1300 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1301 1302 sc->sc_bus.no_intrs++; 1303 usb_schedsoftintr(&sc->sc_bus); 1304 1305 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1306 1307 return (1); 1308 } 1309 1310 void 1311 uhci_softintr(void *v) 1312 { 1313 uhci_softc_t *sc = v; 1314 uhci_intr_info_t *ii, *nextii; 1315 1316 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1317 sc->sc_bus.intr_context)); 1318 1319 sc->sc_bus.intr_context++; 1320 1321 /* 1322 * Interrupts on UHCI really suck. When the host controller 1323 * interrupts because a transfer is completed there is no 1324 * way of knowing which transfer it was. You can scan down 1325 * the TDs and QHs of the previous frame to limit the search, 1326 * but that assumes that the interrupt was not delayed by more 1327 * than 1 ms, which may not always be true (e.g. after debug 1328 * output on a slow console). 1329 * We scan all interrupt descriptors to see if any have 1330 * completed. 1331 */ 1332 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1333 nextii = LIST_NEXT(ii, list); 1334 uhci_check_intr(sc, ii); 1335 } 1336 1337 #ifdef USB_USE_SOFTINTR 1338 if (sc->sc_softwake) { 1339 sc->sc_softwake = 0; 1340 wakeup(&sc->sc_softwake); 1341 } 1342 #endif /* USB_USE_SOFTINTR */ 1343 1344 sc->sc_bus.intr_context--; 1345 } 1346 1347 /* Check for an interrupt. */ 1348 void 1349 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1350 { 1351 uhci_soft_td_t *std, *lstd; 1352 u_int32_t status; 1353 1354 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1355 #ifdef DIAGNOSTIC 1356 if (ii == NULL) { 1357 printf("uhci_check_intr: no ii? %p\n", ii); 1358 return; 1359 } 1360 #endif 1361 if (ii->xfer->status == USBD_CANCELLED || 1362 ii->xfer->status == USBD_TIMEOUT) { 1363 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1364 return; 1365 } 1366 1367 if (ii->stdstart == NULL) 1368 return; 1369 lstd = ii->stdend; 1370 #ifdef DIAGNOSTIC 1371 if (lstd == NULL) { 1372 printf("uhci_check_intr: std==0\n"); 1373 return; 1374 } 1375 #endif 1376 /* 1377 * If the last TD is still active we need to check whether there 1378 * is an error somewhere in the middle, or whether there was a 1379 * short packet (SPD and not ACTIVE). 1380 */ 1381 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1382 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1383 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1384 status = le32toh(std->td.td_status); 1385 /* If there's an active TD the xfer isn't done. */ 1386 if (status & UHCI_TD_ACTIVE) 1387 break; 1388 /* Any kind of error makes the xfer done. */ 1389 if (status & UHCI_TD_STALLED) 1390 goto done; 1391 /* We want short packets, and it is short: it's done */ 1392 if ((status & UHCI_TD_SPD) && 1393 UHCI_TD_GET_ACTLEN(status) < 1394 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1395 goto done; 1396 } 1397 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1398 ii, ii->stdstart)); 1399 return; 1400 } 1401 done: 1402 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1403 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1404 uhci_idone(ii); 1405 } 1406 1407 /* Called at splusb() */ 1408 void 1409 uhci_idone(uhci_intr_info_t *ii) 1410 { 1411 usbd_xfer_handle xfer = ii->xfer; 1412 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1413 uhci_soft_td_t *std; 1414 u_int32_t status = 0, nstatus; 1415 int actlen; 1416 1417 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1418 #ifdef DIAGNOSTIC 1419 { 1420 int s = splhigh(); 1421 if (ii->isdone) { 1422 splx(s); 1423 #ifdef UHCI_DEBUG 1424 printf("uhci_idone: ii is done!\n "); 1425 uhci_dump_ii(ii); 1426 #else 1427 printf("uhci_idone: ii=%p is done!\n", ii); 1428 #endif 1429 return; 1430 } 1431 ii->isdone = 1; 1432 splx(s); 1433 } 1434 #endif 1435 1436 if (xfer->nframes != 0) { 1437 /* Isoc transfer, do things differently. */ 1438 uhci_soft_td_t **stds = upipe->u.iso.stds; 1439 int i, n, nframes, len; 1440 1441 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1442 1443 nframes = xfer->nframes; 1444 actlen = 0; 1445 n = UXFER(xfer)->curframe; 1446 for (i = 0; i < nframes; i++) { 1447 std = stds[n]; 1448 #ifdef UHCI_DEBUG 1449 if (uhcidebug > 5) { 1450 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1451 uhci_dump_td(std); 1452 } 1453 #endif 1454 if (++n >= UHCI_VFRAMELIST_COUNT) 1455 n = 0; 1456 status = le32toh(std->td.td_status); 1457 len = UHCI_TD_GET_ACTLEN(status); 1458 xfer->frlengths[i] = len; 1459 actlen += len; 1460 } 1461 upipe->u.iso.inuse -= nframes; 1462 xfer->actlen = actlen; 1463 xfer->status = USBD_NORMAL_COMPLETION; 1464 goto end; 1465 } 1466 1467 #ifdef UHCI_DEBUG 1468 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1469 ii, xfer, upipe)); 1470 if (uhcidebug > 10) 1471 uhci_dump_tds(ii->stdstart); 1472 #endif 1473 1474 /* The transfer is done, compute actual length and status. */ 1475 actlen = 0; 1476 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1477 nstatus = le32toh(std->td.td_status); 1478 if (nstatus & UHCI_TD_ACTIVE) 1479 break; 1480 1481 status = nstatus; 1482 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1483 UHCI_TD_PID_SETUP) 1484 actlen += UHCI_TD_GET_ACTLEN(status); 1485 else { 1486 /* 1487 * UHCI will report CRCTO in addition to a STALL or NAK 1488 * for a SETUP transaction. See section 3.2.2, "TD 1489 * CONTROL AND STATUS". 1490 */ 1491 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1492 status &= ~UHCI_TD_CRCTO; 1493 } 1494 } 1495 /* If there are left over TDs we need to update the toggle. */ 1496 if (std != NULL) 1497 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1498 1499 status &= UHCI_TD_ERROR; 1500 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1501 actlen, status)); 1502 xfer->actlen = actlen; 1503 if (status != 0) { 1504 #ifdef UHCI_DEBUG 1505 char sbuf[128]; 1506 1507 bitmask_snprintf((u_int32_t)status, 1508 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1509 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1510 sbuf, sizeof(sbuf)); 1511 1512 DPRINTFN((status == UHCI_TD_STALLED)*10, 1513 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1514 "status 0x%s\n", 1515 xfer->pipe->device->address, 1516 xfer->pipe->endpoint->edesc->bEndpointAddress, 1517 sbuf)); 1518 #endif 1519 1520 if (status == UHCI_TD_STALLED) 1521 xfer->status = USBD_STALLED; 1522 else 1523 xfer->status = USBD_IOERROR; /* more info XXX */ 1524 } else { 1525 xfer->status = USBD_NORMAL_COMPLETION; 1526 } 1527 1528 end: 1529 usb_transfer_complete(xfer); 1530 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1531 } 1532 1533 /* 1534 * Called when a request does not complete. 1535 */ 1536 void 1537 uhci_timeout(void *addr) 1538 { 1539 uhci_intr_info_t *ii = addr; 1540 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1541 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1542 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1543 1544 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1545 1546 if (sc->sc_dying) { 1547 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1548 return; 1549 } 1550 1551 /* Execute the abort in a process context. */ 1552 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1553 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1554 } 1555 1556 void 1557 uhci_timeout_task(void *addr) 1558 { 1559 usbd_xfer_handle xfer = addr; 1560 int s; 1561 1562 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1563 1564 s = splusb(); 1565 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1566 splx(s); 1567 } 1568 1569 /* 1570 * Wait here until controller claims to have an interrupt. 1571 * Then call uhci_intr and return. Use timeout to avoid waiting 1572 * too long. 1573 * Only used during boot when interrupts are not enabled yet. 1574 */ 1575 void 1576 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1577 { 1578 int timo = xfer->timeout; 1579 uhci_intr_info_t *ii; 1580 1581 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1582 1583 xfer->status = USBD_IN_PROGRESS; 1584 for (; timo >= 0; timo--) { 1585 usb_delay_ms(&sc->sc_bus, 1); 1586 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1587 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1588 uhci_intr1(sc); 1589 if (xfer->status != USBD_IN_PROGRESS) 1590 return; 1591 } 1592 } 1593 1594 /* Timeout */ 1595 DPRINTF(("uhci_waitintr: timeout\n")); 1596 for (ii = LIST_FIRST(&sc->sc_intrhead); 1597 ii != NULL && ii->xfer != xfer; 1598 ii = LIST_NEXT(ii, list)) 1599 ; 1600 #ifdef DIAGNOSTIC 1601 if (ii == NULL) 1602 panic("uhci_waitintr: lost intr_info"); 1603 #endif 1604 uhci_idone(ii); 1605 } 1606 1607 void 1608 uhci_poll(struct usbd_bus *bus) 1609 { 1610 uhci_softc_t *sc = (uhci_softc_t *)bus; 1611 1612 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1613 uhci_intr1(sc); 1614 } 1615 1616 void 1617 uhci_reset(uhci_softc_t *sc) 1618 { 1619 int n; 1620 1621 UHCICMD(sc, UHCI_CMD_HCRESET); 1622 /* The reset bit goes low when the controller is done. */ 1623 for (n = 0; n < UHCI_RESET_TIMEOUT && 1624 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1625 usb_delay_ms(&sc->sc_bus, 1); 1626 if (n >= UHCI_RESET_TIMEOUT) 1627 printf("%s: controller did not reset\n", 1628 USBDEVNAME(sc->sc_bus.bdev)); 1629 } 1630 1631 usbd_status 1632 uhci_run(uhci_softc_t *sc, int run) 1633 { 1634 int s, n, running; 1635 u_int16_t cmd; 1636 1637 run = run != 0; 1638 s = splhardusb(); 1639 DPRINTF(("uhci_run: setting run=%d\n", run)); 1640 cmd = UREAD2(sc, UHCI_CMD); 1641 if (run) 1642 cmd |= UHCI_CMD_RS; 1643 else 1644 cmd &= ~UHCI_CMD_RS; 1645 UHCICMD(sc, cmd); 1646 for(n = 0; n < 10; n++) { 1647 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1648 /* return when we've entered the state we want */ 1649 if (run == running) { 1650 splx(s); 1651 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1652 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1653 return (USBD_NORMAL_COMPLETION); 1654 } 1655 usb_delay_ms(&sc->sc_bus, 1); 1656 } 1657 splx(s); 1658 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1659 run ? "start" : "stop"); 1660 return (USBD_IOERROR); 1661 } 1662 1663 /* 1664 * Memory management routines. 1665 * uhci_alloc_std allocates TDs 1666 * uhci_alloc_sqh allocates QHs 1667 * These two routines do their own free list management, 1668 * partly for speed, partly because allocating DMAable memory 1669 * has page size granularaity so much memory would be wasted if 1670 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1671 */ 1672 1673 uhci_soft_td_t * 1674 uhci_alloc_std(uhci_softc_t *sc) 1675 { 1676 uhci_soft_td_t *std; 1677 usbd_status err; 1678 int i, offs; 1679 usb_dma_t dma; 1680 1681 if (sc->sc_freetds == NULL) { 1682 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1683 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1684 UHCI_TD_ALIGN, &dma); 1685 if (err) 1686 return (0); 1687 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1688 offs = i * UHCI_STD_SIZE; 1689 std = KERNADDR(&dma, offs); 1690 std->physaddr = DMAADDR(&dma, offs); 1691 std->link.std = sc->sc_freetds; 1692 sc->sc_freetds = std; 1693 } 1694 } 1695 std = sc->sc_freetds; 1696 sc->sc_freetds = std->link.std; 1697 memset(&std->td, 0, sizeof(uhci_td_t)); 1698 return std; 1699 } 1700 1701 void 1702 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1703 { 1704 #ifdef DIAGNOSTIC 1705 #define TD_IS_FREE 0x12345678 1706 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1707 printf("uhci_free_std: freeing free TD %p\n", std); 1708 return; 1709 } 1710 std->td.td_token = htole32(TD_IS_FREE); 1711 #endif 1712 std->link.std = sc->sc_freetds; 1713 sc->sc_freetds = std; 1714 } 1715 1716 uhci_soft_qh_t * 1717 uhci_alloc_sqh(uhci_softc_t *sc) 1718 { 1719 uhci_soft_qh_t *sqh; 1720 usbd_status err; 1721 int i, offs; 1722 usb_dma_t dma; 1723 1724 if (sc->sc_freeqhs == NULL) { 1725 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1726 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1727 UHCI_QH_ALIGN, &dma); 1728 if (err) 1729 return (0); 1730 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1731 offs = i * UHCI_SQH_SIZE; 1732 sqh = KERNADDR(&dma, offs); 1733 sqh->physaddr = DMAADDR(&dma, offs); 1734 sqh->hlink = sc->sc_freeqhs; 1735 sc->sc_freeqhs = sqh; 1736 } 1737 } 1738 sqh = sc->sc_freeqhs; 1739 sc->sc_freeqhs = sqh->hlink; 1740 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1741 return (sqh); 1742 } 1743 1744 void 1745 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1746 { 1747 sqh->hlink = sc->sc_freeqhs; 1748 sc->sc_freeqhs = sqh; 1749 } 1750 1751 void 1752 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1753 uhci_soft_td_t *stdend) 1754 { 1755 uhci_soft_td_t *p; 1756 1757 for (; std != stdend; std = p) { 1758 p = std->link.std; 1759 uhci_free_std(sc, std); 1760 } 1761 } 1762 1763 usbd_status 1764 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1765 int rd, u_int16_t flags, usb_dma_t *dma, 1766 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1767 { 1768 uhci_soft_td_t *p, *lastp; 1769 uhci_physaddr_t lastlink; 1770 int i, ntd, l, tog, maxp; 1771 u_int32_t status; 1772 int addr = upipe->pipe.device->address; 1773 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1774 1775 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1776 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1777 upipe->pipe.device->speed, flags)); 1778 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1779 if (maxp == 0) { 1780 printf("uhci_alloc_std_chain: maxp=0\n"); 1781 return (USBD_INVAL); 1782 } 1783 ntd = (len + maxp - 1) / maxp; 1784 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1785 ntd++; 1786 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1787 if (ntd == 0) { 1788 *sp = *ep = 0; 1789 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1790 return (USBD_NORMAL_COMPLETION); 1791 } 1792 tog = upipe->nexttoggle; 1793 if (ntd % 2 == 0) 1794 tog ^= 1; 1795 upipe->nexttoggle = tog ^ 1; 1796 lastp = NULL; 1797 lastlink = UHCI_PTR_T; 1798 ntd--; 1799 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1800 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1801 status |= UHCI_TD_LS; 1802 if (flags & USBD_SHORT_XFER_OK) 1803 status |= UHCI_TD_SPD; 1804 for (i = ntd; i >= 0; i--) { 1805 p = uhci_alloc_std(sc); 1806 if (p == NULL) { 1807 uhci_free_std_chain(sc, lastp, NULL); 1808 return (USBD_NOMEM); 1809 } 1810 p->link.std = lastp; 1811 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1812 lastp = p; 1813 lastlink = p->physaddr; 1814 p->td.td_status = htole32(status); 1815 if (i == ntd) { 1816 /* last TD */ 1817 l = len % maxp; 1818 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1819 l = maxp; 1820 *ep = p; 1821 } else 1822 l = maxp; 1823 p->td.td_token = 1824 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1825 UHCI_TD_OUT(l, endpt, addr, tog)); 1826 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1827 tog ^= 1; 1828 } 1829 *sp = lastp; 1830 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1831 upipe->nexttoggle)); 1832 return (USBD_NORMAL_COMPLETION); 1833 } 1834 1835 void 1836 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1837 { 1838 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1839 upipe->nexttoggle = 0; 1840 } 1841 1842 void 1843 uhci_noop(usbd_pipe_handle pipe) 1844 { 1845 } 1846 1847 usbd_status 1848 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1849 { 1850 usbd_status err; 1851 1852 /* Insert last in queue. */ 1853 err = usb_insert_transfer(xfer); 1854 if (err) 1855 return (err); 1856 1857 /* 1858 * Pipe isn't running (otherwise err would be USBD_INPROG), 1859 * so start it first. 1860 */ 1861 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1862 } 1863 1864 usbd_status 1865 uhci_device_bulk_start(usbd_xfer_handle xfer) 1866 { 1867 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1868 usbd_device_handle dev = upipe->pipe.device; 1869 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1870 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1871 uhci_soft_td_t *data, *dataend; 1872 uhci_soft_qh_t *sqh; 1873 usbd_status err; 1874 int len, isread, endpt; 1875 int s; 1876 1877 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1878 xfer, xfer->length, xfer->flags, ii)); 1879 1880 if (sc->sc_dying) 1881 return (USBD_IOERROR); 1882 1883 #ifdef DIAGNOSTIC 1884 if (xfer->rqflags & URQ_REQUEST) 1885 panic("uhci_device_bulk_transfer: a request"); 1886 #endif 1887 1888 len = xfer->length; 1889 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1890 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1891 sqh = upipe->u.bulk.sqh; 1892 1893 upipe->u.bulk.isread = isread; 1894 upipe->u.bulk.length = len; 1895 1896 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1897 &xfer->dmabuf, &data, &dataend); 1898 if (err) 1899 return (err); 1900 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1901 1902 #ifdef UHCI_DEBUG 1903 if (uhcidebug > 8) { 1904 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1905 uhci_dump_tds(data); 1906 } 1907 #endif 1908 1909 /* Set up interrupt info. */ 1910 ii->xfer = xfer; 1911 ii->stdstart = data; 1912 ii->stdend = dataend; 1913 #ifdef DIAGNOSTIC 1914 if (!ii->isdone) { 1915 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1916 } 1917 ii->isdone = 0; 1918 #endif 1919 1920 sqh->elink = data; 1921 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1922 1923 s = splusb(); 1924 uhci_add_bulk(sc, sqh); 1925 uhci_add_intr_info(sc, ii); 1926 1927 if (xfer->timeout && !sc->sc_bus.use_polling) { 1928 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1929 uhci_timeout, ii); 1930 } 1931 xfer->status = USBD_IN_PROGRESS; 1932 splx(s); 1933 1934 #ifdef UHCI_DEBUG 1935 if (uhcidebug > 10) { 1936 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1937 uhci_dump_tds(data); 1938 } 1939 #endif 1940 1941 if (sc->sc_bus.use_polling) 1942 uhci_waitintr(sc, xfer); 1943 1944 return (USBD_IN_PROGRESS); 1945 } 1946 1947 /* Abort a device bulk request. */ 1948 void 1949 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1950 { 1951 DPRINTF(("uhci_device_bulk_abort:\n")); 1952 uhci_abort_xfer(xfer, USBD_CANCELLED); 1953 } 1954 1955 /* 1956 * Abort a device request. 1957 * If this routine is called at splusb() it guarantees that the request 1958 * will be removed from the hardware scheduling and that the callback 1959 * for it will be called with USBD_CANCELLED status. 1960 * It's impossible to guarantee that the requested transfer will not 1961 * have happened since the hardware runs concurrently. 1962 * If the transaction has already happened we rely on the ordinary 1963 * interrupt processing to process it. 1964 */ 1965 void 1966 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1967 { 1968 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1969 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1970 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1971 uhci_soft_td_t *std; 1972 int s; 1973 int wake; 1974 1975 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1976 1977 if (sc->sc_dying) { 1978 /* If we're dying, just do the software part. */ 1979 s = splusb(); 1980 xfer->status = status; /* make software ignore it */ 1981 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1982 usb_transfer_complete(xfer); 1983 splx(s); 1984 return; 1985 } 1986 1987 if (xfer->device->bus->intr_context || !curproc) 1988 panic("uhci_abort_xfer: not in process context"); 1989 1990 /* 1991 * If an abort is already in progress then just wait for it to 1992 * complete and return. 1993 */ 1994 if (xfer->hcflags & UXFER_ABORTING) { 1995 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1996 #ifdef DIAGNOSTIC 1997 if (status == USBD_TIMEOUT) 1998 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 1999 #endif 2000 /* Override the status which might be USBD_TIMEOUT. */ 2001 xfer->status = status; 2002 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2003 xfer->hcflags |= UXFER_ABORTWAIT; 2004 while (xfer->hcflags & UXFER_ABORTING) 2005 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2006 return; 2007 } 2008 xfer->hcflags |= UXFER_ABORTING; 2009 2010 /* 2011 * Step 1: Make interrupt routine and hardware ignore xfer. 2012 */ 2013 s = splusb(); 2014 xfer->status = status; /* make software ignore it */ 2015 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2016 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2017 for (std = ii->stdstart; std != NULL; std = std->link.std) 2018 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2019 splx(s); 2020 2021 /* 2022 * Step 2: Wait until we know hardware has finished any possible 2023 * use of the xfer. Also make sure the soft interrupt routine 2024 * has run. 2025 */ 2026 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2027 s = splusb(); 2028 #ifdef USB_USE_SOFTINTR 2029 sc->sc_softwake = 1; 2030 #endif /* USB_USE_SOFTINTR */ 2031 usb_schedsoftintr(&sc->sc_bus); 2032 #ifdef USB_USE_SOFTINTR 2033 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2034 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2035 #endif /* USB_USE_SOFTINTR */ 2036 splx(s); 2037 2038 /* 2039 * Step 3: Execute callback. 2040 */ 2041 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2042 s = splusb(); 2043 #ifdef DIAGNOSTIC 2044 ii->isdone = 1; 2045 #endif 2046 wake = xfer->hcflags & UXFER_ABORTWAIT; 2047 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2048 usb_transfer_complete(xfer); 2049 if (wake) 2050 wakeup(&xfer->hcflags); 2051 splx(s); 2052 } 2053 2054 /* Close a device bulk pipe. */ 2055 void 2056 uhci_device_bulk_close(usbd_pipe_handle pipe) 2057 { 2058 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2059 usbd_device_handle dev = upipe->pipe.device; 2060 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2061 2062 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2063 } 2064 2065 usbd_status 2066 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2067 { 2068 usbd_status err; 2069 2070 /* Insert last in queue. */ 2071 err = usb_insert_transfer(xfer); 2072 if (err) 2073 return (err); 2074 2075 /* 2076 * Pipe isn't running (otherwise err would be USBD_INPROG), 2077 * so start it first. 2078 */ 2079 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2080 } 2081 2082 usbd_status 2083 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2084 { 2085 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2086 usbd_status err; 2087 2088 if (sc->sc_dying) 2089 return (USBD_IOERROR); 2090 2091 #ifdef DIAGNOSTIC 2092 if (!(xfer->rqflags & URQ_REQUEST)) 2093 panic("uhci_device_ctrl_transfer: not a request"); 2094 #endif 2095 2096 err = uhci_device_request(xfer); 2097 if (err) 2098 return (err); 2099 2100 if (sc->sc_bus.use_polling) 2101 uhci_waitintr(sc, xfer); 2102 return (USBD_IN_PROGRESS); 2103 } 2104 2105 usbd_status 2106 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2107 { 2108 usbd_status err; 2109 2110 /* Insert last in queue. */ 2111 err = usb_insert_transfer(xfer); 2112 if (err) 2113 return (err); 2114 2115 /* 2116 * Pipe isn't running (otherwise err would be USBD_INPROG), 2117 * so start it first. 2118 */ 2119 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2120 } 2121 2122 usbd_status 2123 uhci_device_intr_start(usbd_xfer_handle xfer) 2124 { 2125 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2126 usbd_device_handle dev = upipe->pipe.device; 2127 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2128 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2129 uhci_soft_td_t *data, *dataend; 2130 uhci_soft_qh_t *sqh; 2131 usbd_status err; 2132 int isread, endpt; 2133 int i, s; 2134 2135 if (sc->sc_dying) 2136 return (USBD_IOERROR); 2137 2138 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2139 xfer, xfer->length, xfer->flags)); 2140 2141 #ifdef DIAGNOSTIC 2142 if (xfer->rqflags & URQ_REQUEST) 2143 panic("uhci_device_intr_transfer: a request"); 2144 #endif 2145 2146 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2147 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2148 2149 upipe->u.intr.isread = isread; 2150 2151 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2152 xfer->flags, &xfer->dmabuf, &data, 2153 &dataend); 2154 if (err) 2155 return (err); 2156 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2157 2158 #ifdef UHCI_DEBUG 2159 if (uhcidebug > 10) { 2160 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2161 uhci_dump_tds(data); 2162 uhci_dump_qh(upipe->u.intr.qhs[0]); 2163 } 2164 #endif 2165 2166 s = splusb(); 2167 /* Set up interrupt info. */ 2168 ii->xfer = xfer; 2169 ii->stdstart = data; 2170 ii->stdend = dataend; 2171 #ifdef DIAGNOSTIC 2172 if (!ii->isdone) { 2173 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2174 } 2175 ii->isdone = 0; 2176 #endif 2177 2178 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2179 upipe->u.intr.qhs[0])); 2180 for (i = 0; i < upipe->u.intr.npoll; i++) { 2181 sqh = upipe->u.intr.qhs[i]; 2182 sqh->elink = data; 2183 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2184 } 2185 uhci_add_intr_info(sc, ii); 2186 xfer->status = USBD_IN_PROGRESS; 2187 splx(s); 2188 2189 #ifdef UHCI_DEBUG 2190 if (uhcidebug > 10) { 2191 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2192 uhci_dump_tds(data); 2193 uhci_dump_qh(upipe->u.intr.qhs[0]); 2194 } 2195 #endif 2196 2197 return (USBD_IN_PROGRESS); 2198 } 2199 2200 /* Abort a device control request. */ 2201 void 2202 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2203 { 2204 DPRINTF(("uhci_device_ctrl_abort:\n")); 2205 uhci_abort_xfer(xfer, USBD_CANCELLED); 2206 } 2207 2208 /* Close a device control pipe. */ 2209 void 2210 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2211 { 2212 } 2213 2214 /* Abort a device interrupt request. */ 2215 void 2216 uhci_device_intr_abort(usbd_xfer_handle xfer) 2217 { 2218 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2219 if (xfer->pipe->intrxfer == xfer) { 2220 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2221 xfer->pipe->intrxfer = NULL; 2222 } 2223 uhci_abort_xfer(xfer, USBD_CANCELLED); 2224 } 2225 2226 /* Close a device interrupt pipe. */ 2227 void 2228 uhci_device_intr_close(usbd_pipe_handle pipe) 2229 { 2230 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2231 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2232 int i, npoll; 2233 int s; 2234 2235 /* Unlink descriptors from controller data structures. */ 2236 npoll = upipe->u.intr.npoll; 2237 s = splusb(); 2238 for (i = 0; i < npoll; i++) 2239 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2240 splx(s); 2241 2242 /* 2243 * We now have to wait for any activity on the physical 2244 * descriptors to stop. 2245 */ 2246 usb_delay_ms(&sc->sc_bus, 2); 2247 2248 for(i = 0; i < npoll; i++) 2249 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2250 free(upipe->u.intr.qhs, M_USBHC); 2251 2252 /* XXX free other resources */ 2253 } 2254 2255 usbd_status 2256 uhci_device_request(usbd_xfer_handle xfer) 2257 { 2258 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2259 usb_device_request_t *req = &xfer->request; 2260 usbd_device_handle dev = upipe->pipe.device; 2261 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2262 int addr = dev->address; 2263 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2264 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2265 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2266 uhci_soft_qh_t *sqh; 2267 int len; 2268 u_int32_t ls; 2269 usbd_status err; 2270 int isread; 2271 int s; 2272 2273 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2274 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2275 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2276 UGETW(req->wIndex), UGETW(req->wLength), 2277 addr, endpt)); 2278 2279 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2280 isread = req->bmRequestType & UT_READ; 2281 len = UGETW(req->wLength); 2282 2283 setup = upipe->u.ctl.setup; 2284 stat = upipe->u.ctl.stat; 2285 sqh = upipe->u.ctl.sqh; 2286 2287 /* Set up data transaction */ 2288 if (len != 0) { 2289 upipe->nexttoggle = 1; 2290 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2291 &xfer->dmabuf, &data, &dataend); 2292 if (err) 2293 return (err); 2294 next = data; 2295 dataend->link.std = stat; 2296 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2297 } else { 2298 next = stat; 2299 } 2300 upipe->u.ctl.length = len; 2301 2302 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2303 2304 setup->link.std = next; 2305 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2306 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2307 UHCI_TD_ACTIVE); 2308 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2309 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2310 2311 stat->link.std = NULL; 2312 stat->td.td_link = htole32(UHCI_PTR_T); 2313 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2314 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2315 stat->td.td_token = 2316 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2317 UHCI_TD_IN (0, endpt, addr, 1)); 2318 stat->td.td_buffer = htole32(0); 2319 2320 #ifdef UHCI_DEBUG 2321 if (uhcidebug > 10) { 2322 DPRINTF(("uhci_device_request: before transfer\n")); 2323 uhci_dump_tds(setup); 2324 } 2325 #endif 2326 2327 /* Set up interrupt info. */ 2328 ii->xfer = xfer; 2329 ii->stdstart = setup; 2330 ii->stdend = stat; 2331 #ifdef DIAGNOSTIC 2332 if (!ii->isdone) { 2333 printf("uhci_device_request: not done, ii=%p\n", ii); 2334 } 2335 ii->isdone = 0; 2336 #endif 2337 2338 sqh->elink = setup; 2339 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2340 2341 s = splusb(); 2342 if (dev->speed == USB_SPEED_LOW) 2343 uhci_add_ls_ctrl(sc, sqh); 2344 else 2345 uhci_add_hs_ctrl(sc, sqh); 2346 uhci_add_intr_info(sc, ii); 2347 #ifdef UHCI_DEBUG 2348 if (uhcidebug > 12) { 2349 uhci_soft_td_t *std; 2350 uhci_soft_qh_t *xqh; 2351 uhci_soft_qh_t *sxqh; 2352 int maxqh = 0; 2353 uhci_physaddr_t link; 2354 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2355 for (std = sc->sc_vframes[0].htd, link = 0; 2356 (link & UHCI_PTR_QH) == 0; 2357 std = std->link.std) { 2358 link = le32toh(std->td.td_link); 2359 uhci_dump_td(std); 2360 } 2361 sxqh = (uhci_soft_qh_t *)std; 2362 uhci_dump_qh(sxqh); 2363 for (xqh = sxqh; 2364 xqh != NULL; 2365 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2366 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2367 uhci_dump_qh(xqh); 2368 } 2369 DPRINTF(("Enqueued QH:\n")); 2370 uhci_dump_qh(sqh); 2371 uhci_dump_tds(sqh->elink); 2372 } 2373 #endif 2374 if (xfer->timeout && !sc->sc_bus.use_polling) { 2375 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2376 uhci_timeout, ii); 2377 } 2378 xfer->status = USBD_IN_PROGRESS; 2379 splx(s); 2380 2381 return (USBD_NORMAL_COMPLETION); 2382 } 2383 2384 usbd_status 2385 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2386 { 2387 usbd_status err; 2388 2389 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2390 2391 /* Put it on our queue, */ 2392 err = usb_insert_transfer(xfer); 2393 2394 /* bail out on error, */ 2395 if (err && err != USBD_IN_PROGRESS) 2396 return (err); 2397 2398 /* XXX should check inuse here */ 2399 2400 /* insert into schedule, */ 2401 uhci_device_isoc_enter(xfer); 2402 2403 /* and start if the pipe wasn't running */ 2404 if (!err) 2405 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2406 2407 return (err); 2408 } 2409 2410 void 2411 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2412 { 2413 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2414 usbd_device_handle dev = upipe->pipe.device; 2415 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2416 struct iso *iso = &upipe->u.iso; 2417 uhci_soft_td_t *std; 2418 u_int32_t buf, len, status; 2419 int s, i, next, nframes; 2420 2421 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2422 "nframes=%d\n", 2423 iso->inuse, iso->next, xfer, xfer->nframes)); 2424 2425 if (sc->sc_dying) 2426 return; 2427 2428 if (xfer->status == USBD_IN_PROGRESS) { 2429 /* This request has already been entered into the frame list */ 2430 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2431 /* XXX */ 2432 } 2433 2434 #ifdef DIAGNOSTIC 2435 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2436 printf("uhci_device_isoc_enter: overflow!\n"); 2437 #endif 2438 2439 next = iso->next; 2440 if (next == -1) { 2441 /* Not in use yet, schedule it a few frames ahead. */ 2442 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2443 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2444 } 2445 2446 xfer->status = USBD_IN_PROGRESS; 2447 UXFER(xfer)->curframe = next; 2448 2449 buf = DMAADDR(&xfer->dmabuf, 0); 2450 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2451 UHCI_TD_ACTIVE | 2452 UHCI_TD_IOS); 2453 nframes = xfer->nframes; 2454 s = splusb(); 2455 for (i = 0; i < nframes; i++) { 2456 std = iso->stds[next]; 2457 if (++next >= UHCI_VFRAMELIST_COUNT) 2458 next = 0; 2459 len = xfer->frlengths[i]; 2460 std->td.td_buffer = htole32(buf); 2461 if (i == nframes - 1) 2462 status |= UHCI_TD_IOC; 2463 std->td.td_status = htole32(status); 2464 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2465 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2466 #ifdef UHCI_DEBUG 2467 if (uhcidebug > 5) { 2468 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2469 uhci_dump_td(std); 2470 } 2471 #endif 2472 buf += len; 2473 } 2474 iso->next = next; 2475 iso->inuse += xfer->nframes; 2476 2477 splx(s); 2478 } 2479 2480 usbd_status 2481 uhci_device_isoc_start(usbd_xfer_handle xfer) 2482 { 2483 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2484 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2485 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2486 uhci_soft_td_t *end; 2487 int s, i; 2488 2489 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2490 2491 if (sc->sc_dying) 2492 return (USBD_IOERROR); 2493 2494 #ifdef DIAGNOSTIC 2495 if (xfer->status != USBD_IN_PROGRESS) 2496 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2497 #endif 2498 2499 /* Find the last TD */ 2500 i = UXFER(xfer)->curframe + xfer->nframes; 2501 if (i >= UHCI_VFRAMELIST_COUNT) 2502 i -= UHCI_VFRAMELIST_COUNT; 2503 end = upipe->u.iso.stds[i]; 2504 2505 #ifdef DIAGNOSTIC 2506 if (end == NULL) { 2507 printf("uhci_device_isoc_start: end == NULL\n"); 2508 return (USBD_INVAL); 2509 } 2510 #endif 2511 2512 s = splusb(); 2513 2514 /* Set up interrupt info. */ 2515 ii->xfer = xfer; 2516 ii->stdstart = end; 2517 ii->stdend = end; 2518 #ifdef DIAGNOSTIC 2519 if (!ii->isdone) 2520 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2521 ii->isdone = 0; 2522 #endif 2523 uhci_add_intr_info(sc, ii); 2524 2525 splx(s); 2526 2527 return (USBD_IN_PROGRESS); 2528 } 2529 2530 void 2531 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2532 { 2533 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2534 uhci_soft_td_t **stds = upipe->u.iso.stds; 2535 uhci_soft_td_t *std; 2536 int i, n, s, nframes, maxlen, len; 2537 2538 s = splusb(); 2539 2540 /* Transfer is already done. */ 2541 if (xfer->status != USBD_NOT_STARTED && 2542 xfer->status != USBD_IN_PROGRESS) { 2543 splx(s); 2544 return; 2545 } 2546 2547 /* Give xfer the requested abort code. */ 2548 xfer->status = USBD_CANCELLED; 2549 2550 /* make hardware ignore it, */ 2551 nframes = xfer->nframes; 2552 n = UXFER(xfer)->curframe; 2553 maxlen = 0; 2554 for (i = 0; i < nframes; i++) { 2555 std = stds[n]; 2556 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2557 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2558 if (len > maxlen) 2559 maxlen = len; 2560 if (++n >= UHCI_VFRAMELIST_COUNT) 2561 n = 0; 2562 } 2563 2564 /* and wait until we are sure the hardware has finished. */ 2565 delay(maxlen); 2566 2567 #ifdef DIAGNOSTIC 2568 UXFER(xfer)->iinfo.isdone = 1; 2569 #endif 2570 /* Run callback and remove from interrupt list. */ 2571 usb_transfer_complete(xfer); 2572 2573 splx(s); 2574 } 2575 2576 void 2577 uhci_device_isoc_close(usbd_pipe_handle pipe) 2578 { 2579 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2580 usbd_device_handle dev = upipe->pipe.device; 2581 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2582 uhci_soft_td_t *std, *vstd; 2583 struct iso *iso; 2584 int i, s; 2585 2586 /* 2587 * Make sure all TDs are marked as inactive. 2588 * Wait for completion. 2589 * Unschedule. 2590 * Deallocate. 2591 */ 2592 iso = &upipe->u.iso; 2593 2594 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2595 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2596 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2597 2598 s = splusb(); 2599 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2600 std = iso->stds[i]; 2601 for (vstd = sc->sc_vframes[i].htd; 2602 vstd != NULL && vstd->link.std != std; 2603 vstd = vstd->link.std) 2604 ; 2605 if (vstd == NULL) { 2606 /*panic*/ 2607 printf("uhci_device_isoc_close: %p not found\n", std); 2608 splx(s); 2609 return; 2610 } 2611 vstd->link = std->link; 2612 vstd->td.td_link = std->td.td_link; 2613 uhci_free_std(sc, std); 2614 } 2615 splx(s); 2616 2617 free(iso->stds, M_USBHC); 2618 } 2619 2620 usbd_status 2621 uhci_setup_isoc(usbd_pipe_handle pipe) 2622 { 2623 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2624 usbd_device_handle dev = upipe->pipe.device; 2625 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2626 int addr = upipe->pipe.device->address; 2627 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2628 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2629 uhci_soft_td_t *std, *vstd; 2630 u_int32_t token; 2631 struct iso *iso; 2632 int i, s; 2633 2634 iso = &upipe->u.iso; 2635 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2636 M_USBHC, M_WAITOK); 2637 2638 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2639 UHCI_TD_OUT(0, endpt, addr, 0); 2640 2641 /* Allocate the TDs and mark as inactive; */ 2642 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2643 std = uhci_alloc_std(sc); 2644 if (std == 0) 2645 goto bad; 2646 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2647 std->td.td_token = htole32(token); 2648 iso->stds[i] = std; 2649 } 2650 2651 /* Insert TDs into schedule. */ 2652 s = splusb(); 2653 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2654 std = iso->stds[i]; 2655 vstd = sc->sc_vframes[i].htd; 2656 std->link = vstd->link; 2657 std->td.td_link = vstd->td.td_link; 2658 vstd->link.std = std; 2659 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2660 } 2661 splx(s); 2662 2663 iso->next = -1; 2664 iso->inuse = 0; 2665 2666 return (USBD_NORMAL_COMPLETION); 2667 2668 bad: 2669 while (--i >= 0) 2670 uhci_free_std(sc, iso->stds[i]); 2671 free(iso->stds, M_USBHC); 2672 return (USBD_NOMEM); 2673 } 2674 2675 void 2676 uhci_device_isoc_done(usbd_xfer_handle xfer) 2677 { 2678 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2679 2680 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2681 xfer->actlen, xfer->busy_free)); 2682 2683 if (ii->xfer != xfer) 2684 /* Not on interrupt list, ignore it. */ 2685 return; 2686 2687 if (!uhci_active_intr_info(ii)) 2688 return; 2689 2690 #ifdef DIAGNOSTIC 2691 if (ii->stdend == NULL) { 2692 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2693 #ifdef UHCI_DEBUG 2694 uhci_dump_ii(ii); 2695 #endif 2696 return; 2697 } 2698 #endif 2699 2700 /* Turn off the interrupt since it is active even if the TD is not. */ 2701 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2702 2703 uhci_del_intr_info(ii); /* remove from active list */ 2704 } 2705 2706 void 2707 uhci_device_intr_done(usbd_xfer_handle xfer) 2708 { 2709 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2710 uhci_softc_t *sc = ii->sc; 2711 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2712 uhci_soft_qh_t *sqh; 2713 int i, npoll; 2714 2715 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2716 2717 npoll = upipe->u.intr.npoll; 2718 for(i = 0; i < npoll; i++) { 2719 sqh = upipe->u.intr.qhs[i]; 2720 sqh->elink = NULL; 2721 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2722 } 2723 uhci_free_std_chain(sc, ii->stdstart, NULL); 2724 2725 /* XXX Wasteful. */ 2726 if (xfer->pipe->repeat) { 2727 uhci_soft_td_t *data, *dataend; 2728 2729 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2730 2731 /* This alloc cannot fail since we freed the chain above. */ 2732 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2733 &xfer->dmabuf, &data, &dataend); 2734 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2735 2736 #ifdef UHCI_DEBUG 2737 if (uhcidebug > 10) { 2738 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2739 uhci_dump_tds(data); 2740 uhci_dump_qh(upipe->u.intr.qhs[0]); 2741 } 2742 #endif 2743 2744 ii->stdstart = data; 2745 ii->stdend = dataend; 2746 #ifdef DIAGNOSTIC 2747 if (!ii->isdone) { 2748 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2749 } 2750 ii->isdone = 0; 2751 #endif 2752 for (i = 0; i < npoll; i++) { 2753 sqh = upipe->u.intr.qhs[i]; 2754 sqh->elink = data; 2755 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2756 } 2757 xfer->status = USBD_IN_PROGRESS; 2758 /* The ii is already on the examined list, just leave it. */ 2759 } else { 2760 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2761 if (uhci_active_intr_info(ii)) 2762 uhci_del_intr_info(ii); 2763 } 2764 } 2765 2766 /* Deallocate request data structures */ 2767 void 2768 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2769 { 2770 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2771 uhci_softc_t *sc = ii->sc; 2772 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2773 2774 #ifdef DIAGNOSTIC 2775 if (!(xfer->rqflags & URQ_REQUEST)) 2776 panic("uhci_device_ctrl_done: not a request"); 2777 #endif 2778 2779 if (!uhci_active_intr_info(ii)) 2780 return; 2781 2782 uhci_del_intr_info(ii); /* remove from active list */ 2783 2784 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2785 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2786 else 2787 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2788 2789 if (upipe->u.ctl.length != 0) 2790 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2791 2792 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2793 } 2794 2795 /* Deallocate request data structures */ 2796 void 2797 uhci_device_bulk_done(usbd_xfer_handle xfer) 2798 { 2799 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2800 uhci_softc_t *sc = ii->sc; 2801 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2802 2803 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2804 xfer, ii, sc, upipe)); 2805 2806 if (!uhci_active_intr_info(ii)) 2807 return; 2808 2809 uhci_del_intr_info(ii); /* remove from active list */ 2810 2811 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2812 2813 uhci_free_std_chain(sc, ii->stdstart, NULL); 2814 2815 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2816 } 2817 2818 /* Add interrupt QH, called with vflock. */ 2819 void 2820 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2821 { 2822 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2823 uhci_soft_qh_t *eqh; 2824 2825 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2826 2827 eqh = vf->eqh; 2828 sqh->hlink = eqh->hlink; 2829 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2830 eqh->hlink = sqh; 2831 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2832 vf->eqh = sqh; 2833 vf->bandwidth++; 2834 } 2835 2836 /* Remove interrupt QH. */ 2837 void 2838 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2839 { 2840 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2841 uhci_soft_qh_t *pqh; 2842 2843 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2844 2845 /* See comment in uhci_remove_ctrl() */ 2846 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2847 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2848 delay(UHCI_QH_REMOVE_DELAY); 2849 } 2850 2851 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2852 pqh->hlink = sqh->hlink; 2853 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2854 delay(UHCI_QH_REMOVE_DELAY); 2855 if (vf->eqh == sqh) 2856 vf->eqh = pqh; 2857 vf->bandwidth--; 2858 } 2859 2860 usbd_status 2861 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2862 { 2863 uhci_soft_qh_t *sqh; 2864 int i, npoll, s; 2865 u_int bestbw, bw, bestoffs, offs; 2866 2867 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2868 if (ival == 0) { 2869 printf("uhci_device_setintr: 0 interval\n"); 2870 return (USBD_INVAL); 2871 } 2872 2873 if (ival > UHCI_VFRAMELIST_COUNT) 2874 ival = UHCI_VFRAMELIST_COUNT; 2875 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2876 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2877 2878 upipe->u.intr.npoll = npoll; 2879 upipe->u.intr.qhs = 2880 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2881 2882 /* 2883 * Figure out which offset in the schedule that has most 2884 * bandwidth left over. 2885 */ 2886 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2887 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2888 for (bw = i = 0; i < npoll; i++) 2889 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2890 if (bw < bestbw) { 2891 bestbw = bw; 2892 bestoffs = offs; 2893 } 2894 } 2895 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2896 2897 for(i = 0; i < npoll; i++) { 2898 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2899 sqh->elink = NULL; 2900 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2901 sqh->pos = MOD(i * ival + bestoffs); 2902 } 2903 #undef MOD 2904 2905 s = splusb(); 2906 /* Enter QHs into the controller data structures. */ 2907 for(i = 0; i < npoll; i++) 2908 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2909 splx(s); 2910 2911 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2912 return (USBD_NORMAL_COMPLETION); 2913 } 2914 2915 /* Open a new pipe. */ 2916 usbd_status 2917 uhci_open(usbd_pipe_handle pipe) 2918 { 2919 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2920 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2921 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2922 usbd_status err; 2923 int ival; 2924 2925 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2926 pipe, pipe->device->address, 2927 ed->bEndpointAddress, sc->sc_addr)); 2928 2929 upipe->aborting = 0; 2930 upipe->nexttoggle = 0; 2931 2932 if (pipe->device->address == sc->sc_addr) { 2933 switch (ed->bEndpointAddress) { 2934 case USB_CONTROL_ENDPOINT: 2935 pipe->methods = &uhci_root_ctrl_methods; 2936 break; 2937 case UE_DIR_IN | UHCI_INTR_ENDPT: 2938 pipe->methods = &uhci_root_intr_methods; 2939 break; 2940 default: 2941 return (USBD_INVAL); 2942 } 2943 } else { 2944 switch (ed->bmAttributes & UE_XFERTYPE) { 2945 case UE_CONTROL: 2946 pipe->methods = &uhci_device_ctrl_methods; 2947 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2948 if (upipe->u.ctl.sqh == NULL) 2949 goto bad; 2950 upipe->u.ctl.setup = uhci_alloc_std(sc); 2951 if (upipe->u.ctl.setup == NULL) { 2952 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2953 goto bad; 2954 } 2955 upipe->u.ctl.stat = uhci_alloc_std(sc); 2956 if (upipe->u.ctl.stat == NULL) { 2957 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2958 uhci_free_std(sc, upipe->u.ctl.setup); 2959 goto bad; 2960 } 2961 err = usb_allocmem(&sc->sc_bus, 2962 sizeof(usb_device_request_t), 2963 0, &upipe->u.ctl.reqdma); 2964 if (err) { 2965 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2966 uhci_free_std(sc, upipe->u.ctl.setup); 2967 uhci_free_std(sc, upipe->u.ctl.stat); 2968 goto bad; 2969 } 2970 break; 2971 case UE_INTERRUPT: 2972 pipe->methods = &uhci_device_intr_methods; 2973 ival = pipe->interval; 2974 if (ival == USBD_DEFAULT_INTERVAL) 2975 ival = ed->bInterval; 2976 return (uhci_device_setintr(sc, upipe, ival)); 2977 case UE_ISOCHRONOUS: 2978 pipe->methods = &uhci_device_isoc_methods; 2979 return (uhci_setup_isoc(pipe)); 2980 case UE_BULK: 2981 pipe->methods = &uhci_device_bulk_methods; 2982 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2983 if (upipe->u.bulk.sqh == NULL) 2984 goto bad; 2985 break; 2986 } 2987 } 2988 return (USBD_NORMAL_COMPLETION); 2989 2990 bad: 2991 return (USBD_NOMEM); 2992 } 2993 2994 /* 2995 * Data structures and routines to emulate the root hub. 2996 */ 2997 usb_device_descriptor_t uhci_devd = { 2998 USB_DEVICE_DESCRIPTOR_SIZE, 2999 UDESC_DEVICE, /* type */ 3000 {0x00, 0x01}, /* USB version */ 3001 UDCLASS_HUB, /* class */ 3002 UDSUBCLASS_HUB, /* subclass */ 3003 UDPROTO_FSHUB, /* protocol */ 3004 64, /* max packet */ 3005 {0},{0},{0x00,0x01}, /* device id */ 3006 1,2,0, /* string indicies */ 3007 1 /* # of configurations */ 3008 }; 3009 3010 usb_config_descriptor_t uhci_confd = { 3011 USB_CONFIG_DESCRIPTOR_SIZE, 3012 UDESC_CONFIG, 3013 {USB_CONFIG_DESCRIPTOR_SIZE + 3014 USB_INTERFACE_DESCRIPTOR_SIZE + 3015 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3016 1, 3017 1, 3018 0, 3019 UC_SELF_POWERED, 3020 0 /* max power */ 3021 }; 3022 3023 usb_interface_descriptor_t uhci_ifcd = { 3024 USB_INTERFACE_DESCRIPTOR_SIZE, 3025 UDESC_INTERFACE, 3026 0, 3027 0, 3028 1, 3029 UICLASS_HUB, 3030 UISUBCLASS_HUB, 3031 UIPROTO_FSHUB, 3032 0 3033 }; 3034 3035 usb_endpoint_descriptor_t uhci_endpd = { 3036 USB_ENDPOINT_DESCRIPTOR_SIZE, 3037 UDESC_ENDPOINT, 3038 UE_DIR_IN | UHCI_INTR_ENDPT, 3039 UE_INTERRUPT, 3040 {8}, 3041 255 3042 }; 3043 3044 usb_hub_descriptor_t uhci_hubd_piix = { 3045 USB_HUB_DESCRIPTOR_SIZE, 3046 UDESC_HUB, 3047 2, 3048 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3049 50, /* power on to power good */ 3050 0, 3051 { 0x00 }, /* both ports are removable */ 3052 { 0 }, 3053 }; 3054 3055 int 3056 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3057 { 3058 int i; 3059 3060 if (l == 0) 3061 return (0); 3062 p->bLength = 2 * strlen(s) + 2; 3063 if (l == 1) 3064 return (1); 3065 p->bDescriptorType = UDESC_STRING; 3066 l -= 2; 3067 for (i = 0; s[i] && l > 1; i++, l -= 2) 3068 USETW2(p->bString[i], 0, s[i]); 3069 return (2*i+2); 3070 } 3071 3072 /* 3073 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3074 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3075 * should not be used by the USB subsystem. As we cannot issue a 3076 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3077 * will be enabled as part of the reset. 3078 * 3079 * On the VT83C572, the port cannot be successfully enabled until the 3080 * outstanding "port enable change" and "connection status change" 3081 * events have been reset. 3082 */ 3083 Static usbd_status 3084 uhci_portreset(uhci_softc_t *sc, int index) 3085 { 3086 int lim, port, x; 3087 3088 if (index == 1) 3089 port = UHCI_PORTSC1; 3090 else if (index == 2) 3091 port = UHCI_PORTSC2; 3092 else 3093 return (USBD_IOERROR); 3094 3095 x = URWMASK(UREAD2(sc, port)); 3096 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3097 3098 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3099 3100 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3101 index, UREAD2(sc, port))); 3102 3103 x = URWMASK(UREAD2(sc, port)); 3104 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3105 3106 delay(100); 3107 3108 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3109 index, UREAD2(sc, port))); 3110 3111 x = URWMASK(UREAD2(sc, port)); 3112 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3113 3114 for (lim = 10; --lim > 0;) { 3115 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3116 3117 x = UREAD2(sc, port); 3118 3119 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3120 index, lim, x)); 3121 3122 if (!(x & UHCI_PORTSC_CCS)) { 3123 /* 3124 * No device is connected (or was disconnected 3125 * during reset). Consider the port reset. 3126 * The delay must be long enough to ensure on 3127 * the initial iteration that the device 3128 * connection will have been registered. 50ms 3129 * appears to be sufficient, but 20ms is not. 3130 */ 3131 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3132 index, lim)); 3133 break; 3134 } 3135 3136 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3137 /* 3138 * Port enabled changed and/or connection 3139 * status changed were set. Reset either or 3140 * both raised flags (by writing a 1 to that 3141 * bit), and wait again for state to settle. 3142 */ 3143 UWRITE2(sc, port, URWMASK(x) | 3144 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3145 continue; 3146 } 3147 3148 if (x & UHCI_PORTSC_PE) 3149 /* Port is enabled */ 3150 break; 3151 3152 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3153 } 3154 3155 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3156 index, UREAD2(sc, port))); 3157 3158 if (lim <= 0) { 3159 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3160 return (USBD_TIMEOUT); 3161 } 3162 3163 sc->sc_isreset = 1; 3164 return (USBD_NORMAL_COMPLETION); 3165 } 3166 3167 /* 3168 * Simulate a hardware hub by handling all the necessary requests. 3169 */ 3170 usbd_status 3171 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3172 { 3173 usbd_status err; 3174 3175 /* Insert last in queue. */ 3176 err = usb_insert_transfer(xfer); 3177 if (err) 3178 return (err); 3179 3180 /* 3181 * Pipe isn't running (otherwise err would be USBD_INPROG), 3182 * so start it first. 3183 */ 3184 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3185 } 3186 3187 usbd_status 3188 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3189 { 3190 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3191 usb_device_request_t *req; 3192 void *buf = NULL; 3193 int port, x; 3194 int s, len, value, index, status, change, l, totlen = 0; 3195 usb_port_status_t ps; 3196 usbd_status err; 3197 3198 if (sc->sc_dying) 3199 return (USBD_IOERROR); 3200 3201 #ifdef DIAGNOSTIC 3202 if (!(xfer->rqflags & URQ_REQUEST)) 3203 panic("uhci_root_ctrl_transfer: not a request"); 3204 #endif 3205 req = &xfer->request; 3206 3207 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3208 req->bmRequestType, req->bRequest)); 3209 3210 len = UGETW(req->wLength); 3211 value = UGETW(req->wValue); 3212 index = UGETW(req->wIndex); 3213 3214 if (len != 0) 3215 buf = KERNADDR(&xfer->dmabuf, 0); 3216 3217 #define C(x,y) ((x) | ((y) << 8)) 3218 switch(C(req->bRequest, req->bmRequestType)) { 3219 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3220 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3221 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3222 /* 3223 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3224 * for the integrated root hub. 3225 */ 3226 break; 3227 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3228 if (len > 0) { 3229 *(u_int8_t *)buf = sc->sc_conf; 3230 totlen = 1; 3231 } 3232 break; 3233 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3234 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3235 if (len == 0) 3236 break; 3237 switch(value >> 8) { 3238 case UDESC_DEVICE: 3239 if ((value & 0xff) != 0) { 3240 err = USBD_IOERROR; 3241 goto ret; 3242 } 3243 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3244 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3245 memcpy(buf, &uhci_devd, l); 3246 break; 3247 case UDESC_CONFIG: 3248 if ((value & 0xff) != 0) { 3249 err = USBD_IOERROR; 3250 goto ret; 3251 } 3252 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3253 memcpy(buf, &uhci_confd, l); 3254 buf = (char *)buf + l; 3255 len -= l; 3256 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3257 totlen += l; 3258 memcpy(buf, &uhci_ifcd, l); 3259 buf = (char *)buf + l; 3260 len -= l; 3261 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3262 totlen += l; 3263 memcpy(buf, &uhci_endpd, l); 3264 break; 3265 case UDESC_STRING: 3266 *(u_int8_t *)buf = 0; 3267 totlen = 1; 3268 switch (value & 0xff) { 3269 case 0: /* Language table */ 3270 totlen = uhci_str(buf, len, "\001"); 3271 break; 3272 case 1: /* Vendor */ 3273 totlen = uhci_str(buf, len, sc->sc_vendor); 3274 break; 3275 case 2: /* Product */ 3276 totlen = uhci_str(buf, len, "UHCI root hub"); 3277 break; 3278 } 3279 break; 3280 default: 3281 err = USBD_IOERROR; 3282 goto ret; 3283 } 3284 break; 3285 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3286 if (len > 0) { 3287 *(u_int8_t *)buf = 0; 3288 totlen = 1; 3289 } 3290 break; 3291 case C(UR_GET_STATUS, UT_READ_DEVICE): 3292 if (len > 1) { 3293 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3294 totlen = 2; 3295 } 3296 break; 3297 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3298 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3299 if (len > 1) { 3300 USETW(((usb_status_t *)buf)->wStatus, 0); 3301 totlen = 2; 3302 } 3303 break; 3304 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3305 if (value >= USB_MAX_DEVICES) { 3306 err = USBD_IOERROR; 3307 goto ret; 3308 } 3309 sc->sc_addr = value; 3310 break; 3311 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3312 if (value != 0 && value != 1) { 3313 err = USBD_IOERROR; 3314 goto ret; 3315 } 3316 sc->sc_conf = value; 3317 break; 3318 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3319 break; 3320 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3321 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3322 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3323 err = USBD_IOERROR; 3324 goto ret; 3325 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3326 break; 3327 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3328 break; 3329 /* Hub requests */ 3330 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3331 break; 3332 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3333 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3334 "port=%d feature=%d\n", 3335 index, value)); 3336 if (index == 1) 3337 port = UHCI_PORTSC1; 3338 else if (index == 2) 3339 port = UHCI_PORTSC2; 3340 else { 3341 err = USBD_IOERROR; 3342 goto ret; 3343 } 3344 switch(value) { 3345 case UHF_PORT_ENABLE: 3346 x = URWMASK(UREAD2(sc, port)); 3347 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3348 break; 3349 case UHF_PORT_SUSPEND: 3350 x = URWMASK(UREAD2(sc, port)); 3351 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3352 break; 3353 case UHF_PORT_RESET: 3354 x = URWMASK(UREAD2(sc, port)); 3355 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3356 break; 3357 case UHF_C_PORT_CONNECTION: 3358 x = URWMASK(UREAD2(sc, port)); 3359 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3360 break; 3361 case UHF_C_PORT_ENABLE: 3362 x = URWMASK(UREAD2(sc, port)); 3363 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3364 break; 3365 case UHF_C_PORT_OVER_CURRENT: 3366 x = URWMASK(UREAD2(sc, port)); 3367 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3368 break; 3369 case UHF_C_PORT_RESET: 3370 sc->sc_isreset = 0; 3371 err = USBD_NORMAL_COMPLETION; 3372 goto ret; 3373 case UHF_PORT_CONNECTION: 3374 case UHF_PORT_OVER_CURRENT: 3375 case UHF_PORT_POWER: 3376 case UHF_PORT_LOW_SPEED: 3377 case UHF_C_PORT_SUSPEND: 3378 default: 3379 err = USBD_IOERROR; 3380 goto ret; 3381 } 3382 break; 3383 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3384 if (index == 1) 3385 port = UHCI_PORTSC1; 3386 else if (index == 2) 3387 port = UHCI_PORTSC2; 3388 else { 3389 err = USBD_IOERROR; 3390 goto ret; 3391 } 3392 if (len > 0) { 3393 *(u_int8_t *)buf = 3394 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3395 UHCI_PORTSC_LS_SHIFT; 3396 totlen = 1; 3397 } 3398 break; 3399 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3400 if (len == 0) 3401 break; 3402 if ((value & 0xff) != 0) { 3403 err = USBD_IOERROR; 3404 goto ret; 3405 } 3406 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3407 totlen = l; 3408 memcpy(buf, &uhci_hubd_piix, l); 3409 break; 3410 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3411 if (len != 4) { 3412 err = USBD_IOERROR; 3413 goto ret; 3414 } 3415 memset(buf, 0, len); 3416 totlen = len; 3417 break; 3418 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3419 if (index == 1) 3420 port = UHCI_PORTSC1; 3421 else if (index == 2) 3422 port = UHCI_PORTSC2; 3423 else { 3424 err = USBD_IOERROR; 3425 goto ret; 3426 } 3427 if (len != 4) { 3428 err = USBD_IOERROR; 3429 goto ret; 3430 } 3431 x = UREAD2(sc, port); 3432 status = change = 0; 3433 if (x & UHCI_PORTSC_CCS) 3434 status |= UPS_CURRENT_CONNECT_STATUS; 3435 if (x & UHCI_PORTSC_CSC) 3436 change |= UPS_C_CONNECT_STATUS; 3437 if (x & UHCI_PORTSC_PE) 3438 status |= UPS_PORT_ENABLED; 3439 if (x & UHCI_PORTSC_POEDC) 3440 change |= UPS_C_PORT_ENABLED; 3441 if (x & UHCI_PORTSC_OCI) 3442 status |= UPS_OVERCURRENT_INDICATOR; 3443 if (x & UHCI_PORTSC_OCIC) 3444 change |= UPS_C_OVERCURRENT_INDICATOR; 3445 if (x & UHCI_PORTSC_SUSP) 3446 status |= UPS_SUSPEND; 3447 if (x & UHCI_PORTSC_LSDA) 3448 status |= UPS_LOW_SPEED; 3449 status |= UPS_PORT_POWER; 3450 if (sc->sc_isreset) 3451 change |= UPS_C_PORT_RESET; 3452 USETW(ps.wPortStatus, status); 3453 USETW(ps.wPortChange, change); 3454 l = min(len, sizeof ps); 3455 memcpy(buf, &ps, l); 3456 totlen = l; 3457 break; 3458 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3459 err = USBD_IOERROR; 3460 goto ret; 3461 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3462 break; 3463 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3464 if (index == 1) 3465 port = UHCI_PORTSC1; 3466 else if (index == 2) 3467 port = UHCI_PORTSC2; 3468 else { 3469 err = USBD_IOERROR; 3470 goto ret; 3471 } 3472 switch(value) { 3473 case UHF_PORT_ENABLE: 3474 x = URWMASK(UREAD2(sc, port)); 3475 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3476 break; 3477 case UHF_PORT_SUSPEND: 3478 x = URWMASK(UREAD2(sc, port)); 3479 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3480 break; 3481 case UHF_PORT_RESET: 3482 err = uhci_portreset(sc, index); 3483 goto ret; 3484 case UHF_PORT_POWER: 3485 /* Pretend we turned on power */ 3486 err = USBD_NORMAL_COMPLETION; 3487 goto ret; 3488 case UHF_C_PORT_CONNECTION: 3489 case UHF_C_PORT_ENABLE: 3490 case UHF_C_PORT_OVER_CURRENT: 3491 case UHF_PORT_CONNECTION: 3492 case UHF_PORT_OVER_CURRENT: 3493 case UHF_PORT_LOW_SPEED: 3494 case UHF_C_PORT_SUSPEND: 3495 case UHF_C_PORT_RESET: 3496 default: 3497 err = USBD_IOERROR; 3498 goto ret; 3499 } 3500 break; 3501 default: 3502 err = USBD_IOERROR; 3503 goto ret; 3504 } 3505 xfer->actlen = totlen; 3506 err = USBD_NORMAL_COMPLETION; 3507 ret: 3508 xfer->status = err; 3509 s = splusb(); 3510 usb_transfer_complete(xfer); 3511 splx(s); 3512 return (USBD_IN_PROGRESS); 3513 } 3514 3515 /* Abort a root control request. */ 3516 void 3517 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3518 { 3519 /* Nothing to do, all transfers are synchronous. */ 3520 } 3521 3522 /* Close the root pipe. */ 3523 void 3524 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3525 { 3526 DPRINTF(("uhci_root_ctrl_close\n")); 3527 } 3528 3529 /* Abort a root interrupt request. */ 3530 void 3531 uhci_root_intr_abort(usbd_xfer_handle xfer) 3532 { 3533 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3534 3535 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3536 sc->sc_intr_xfer = NULL; 3537 3538 if (xfer->pipe->intrxfer == xfer) { 3539 DPRINTF(("uhci_root_intr_abort: remove\n")); 3540 xfer->pipe->intrxfer = 0; 3541 } 3542 xfer->status = USBD_CANCELLED; 3543 #ifdef DIAGNOSTIC 3544 UXFER(xfer)->iinfo.isdone = 1; 3545 #endif 3546 usb_transfer_complete(xfer); 3547 } 3548 3549 usbd_status 3550 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3551 { 3552 usbd_status err; 3553 3554 /* Insert last in queue. */ 3555 err = usb_insert_transfer(xfer); 3556 if (err) 3557 return (err); 3558 3559 /* 3560 * Pipe isn't running (otherwise err would be USBD_INPROG), 3561 * start first 3562 */ 3563 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3564 } 3565 3566 /* Start a transfer on the root interrupt pipe */ 3567 usbd_status 3568 uhci_root_intr_start(usbd_xfer_handle xfer) 3569 { 3570 usbd_pipe_handle pipe = xfer->pipe; 3571 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3572 unsigned int ival; 3573 3574 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3575 xfer, xfer->length, xfer->flags)); 3576 3577 if (sc->sc_dying) 3578 return (USBD_IOERROR); 3579 3580 /* XXX temporary variable needed to avoid gcc3 warning */ 3581 ival = xfer->pipe->endpoint->edesc->bInterval; 3582 sc->sc_ival = mstohz(ival); 3583 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3584 sc->sc_intr_xfer = xfer; 3585 return (USBD_IN_PROGRESS); 3586 } 3587 3588 /* Close the root interrupt pipe. */ 3589 void 3590 uhci_root_intr_close(usbd_pipe_handle pipe) 3591 { 3592 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3593 3594 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3595 sc->sc_intr_xfer = NULL; 3596 DPRINTF(("uhci_root_intr_close\n")); 3597 } 3598