uhci.c revision 1.209.2.2
1 /* $NetBSD: uhci.c,v 1.209.2.2 2007/08/16 11:03:22 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 (at) 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 1.209.2.2 2007/08/16 11:03:22 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 usbd_status uhci_run(uhci_softc_t *, int run); 170 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 171 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 172 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 173 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 174 #if 0 175 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 176 uhci_intr_info_t *); 177 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 178 #endif 179 180 Static void uhci_free_std_chain(uhci_softc_t *, 181 uhci_soft_td_t *, uhci_soft_td_t *); 182 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 183 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 184 uhci_soft_td_t **, uhci_soft_td_t **); 185 Static void uhci_poll_hub(void *); 186 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 187 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 188 Static void uhci_idone(uhci_intr_info_t *); 189 190 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 191 192 Static void uhci_timeout(void *); 193 Static void uhci_timeout_task(void *); 194 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 200 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 201 Static void uhci_add_loop(uhci_softc_t *sc); 202 Static void uhci_rem_loop(uhci_softc_t *sc); 203 204 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 205 Static void uhci_device_isoc_enter(usbd_xfer_handle); 206 207 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 208 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 209 210 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 211 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 212 213 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 215 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 216 Static void uhci_device_ctrl_close(usbd_pipe_handle); 217 Static void uhci_device_ctrl_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 221 Static void uhci_device_intr_abort(usbd_xfer_handle); 222 Static void uhci_device_intr_close(usbd_pipe_handle); 223 Static void uhci_device_intr_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 227 Static void uhci_device_bulk_abort(usbd_xfer_handle); 228 Static void uhci_device_bulk_close(usbd_pipe_handle); 229 Static void uhci_device_bulk_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 233 Static void uhci_device_isoc_abort(usbd_xfer_handle); 234 Static void uhci_device_isoc_close(usbd_pipe_handle); 235 Static void uhci_device_isoc_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 239 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 240 Static void uhci_root_ctrl_close(usbd_pipe_handle); 241 Static void uhci_root_ctrl_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 244 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 245 Static void uhci_root_intr_abort(usbd_xfer_handle); 246 Static void uhci_root_intr_close(usbd_pipe_handle); 247 Static void uhci_root_intr_done(usbd_xfer_handle); 248 249 Static usbd_status uhci_open(usbd_pipe_handle); 250 Static void uhci_poll(struct usbd_bus *); 251 Static void uhci_softintr(void *); 252 253 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 254 255 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 258 struct uhci_pipe *pipe, int ival); 259 260 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 261 Static void uhci_noop(usbd_pipe_handle pipe); 262 263 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 264 uhci_soft_qh_t *); 265 266 #ifdef UHCI_DEBUG 267 Static void uhci_dump_all(uhci_softc_t *); 268 Static void uhci_dumpregs(uhci_softc_t *); 269 Static void uhci_dump_qhs(uhci_soft_qh_t *); 270 Static void uhci_dump_qh(uhci_soft_qh_t *); 271 Static void uhci_dump_tds(uhci_soft_td_t *); 272 Static void uhci_dump_td(uhci_soft_td_t *); 273 Static void uhci_dump_ii(uhci_intr_info_t *ii); 274 void uhci_dump(void); 275 #endif 276 277 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 278 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 279 #define UWRITE1(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 281 } while (/*CONSTCOND*/0) 282 #define UWRITE2(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 284 } while (/*CONSTCOND*/0) 285 #define UWRITE4(sc, r, x) \ 286 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 287 } while (/*CONSTCOND*/0) 288 static __inline uint8_t 289 UREAD1(uhci_softc_t *sc, bus_size_t r) 290 { 291 292 UBARR(sc); 293 return bus_space_read_1(sc->iot, sc->ioh, r); 294 } 295 296 static __inline uint16_t 297 UREAD2(uhci_softc_t *sc, bus_size_t r) 298 { 299 300 UBARR(sc); 301 return bus_space_read_2(sc->iot, sc->ioh, r); 302 } 303 304 static __inline uint32_t 305 UREAD4(uhci_softc_t *sc, bus_size_t r) 306 { 307 308 UBARR(sc); 309 return bus_space_read_4(sc->iot, sc->ioh, r); 310 } 311 312 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 313 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 314 315 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 316 317 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 318 319 #define UHCI_INTR_ENDPT 1 320 321 const struct usbd_bus_methods uhci_bus_methods = { 322 uhci_open, 323 uhci_softintr, 324 uhci_poll, 325 uhci_allocm, 326 uhci_freem, 327 uhci_allocx, 328 uhci_freex, 329 }; 330 331 const struct usbd_pipe_methods uhci_root_ctrl_methods = { 332 uhci_root_ctrl_transfer, 333 uhci_root_ctrl_start, 334 uhci_root_ctrl_abort, 335 uhci_root_ctrl_close, 336 uhci_noop, 337 uhci_root_ctrl_done, 338 }; 339 340 const struct usbd_pipe_methods uhci_root_intr_methods = { 341 uhci_root_intr_transfer, 342 uhci_root_intr_start, 343 uhci_root_intr_abort, 344 uhci_root_intr_close, 345 uhci_noop, 346 uhci_root_intr_done, 347 }; 348 349 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 350 uhci_device_ctrl_transfer, 351 uhci_device_ctrl_start, 352 uhci_device_ctrl_abort, 353 uhci_device_ctrl_close, 354 uhci_noop, 355 uhci_device_ctrl_done, 356 }; 357 358 const struct usbd_pipe_methods uhci_device_intr_methods = { 359 uhci_device_intr_transfer, 360 uhci_device_intr_start, 361 uhci_device_intr_abort, 362 uhci_device_intr_close, 363 uhci_device_clear_toggle, 364 uhci_device_intr_done, 365 }; 366 367 const struct usbd_pipe_methods uhci_device_bulk_methods = { 368 uhci_device_bulk_transfer, 369 uhci_device_bulk_start, 370 uhci_device_bulk_abort, 371 uhci_device_bulk_close, 372 uhci_device_clear_toggle, 373 uhci_device_bulk_done, 374 }; 375 376 const struct usbd_pipe_methods uhci_device_isoc_methods = { 377 uhci_device_isoc_transfer, 378 uhci_device_isoc_start, 379 uhci_device_isoc_abort, 380 uhci_device_isoc_close, 381 uhci_noop, 382 uhci_device_isoc_done, 383 }; 384 385 #define uhci_add_intr_info(sc, ii) \ 386 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 387 #define uhci_del_intr_info(ii) \ 388 do { \ 389 LIST_REMOVE((ii), list); \ 390 (ii)->list.le_prev = NULL; \ 391 } while (0) 392 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 393 394 Static inline uhci_soft_qh_t * 395 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 396 { 397 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 398 399 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 400 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 401 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 402 printf("uhci_find_prev_qh: QH not found\n"); 403 return (NULL); 404 } 405 #endif 406 } 407 return (pqh); 408 } 409 410 void 411 uhci_globalreset(uhci_softc_t *sc) 412 { 413 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 414 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 415 UHCICMD(sc, 0); /* do nothing */ 416 } 417 418 usbd_status 419 uhci_init(uhci_softc_t *sc) 420 { 421 usbd_status err; 422 int i, j; 423 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 424 uhci_soft_td_t *std; 425 426 DPRINTFN(1,("uhci_init: start\n")); 427 428 #ifdef UHCI_DEBUG 429 thesc = sc; 430 431 if (uhcidebug > 2) 432 uhci_dumpregs(sc); 433 #endif 434 435 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 436 uhci_globalreset(sc); /* reset the controller */ 437 uhci_reset(sc); 438 439 #ifdef __NetBSD__ 440 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 441 USB_MEM_RESERVE); 442 #endif 443 444 /* Allocate and initialize real frame array. */ 445 err = usb_allocmem(&sc->sc_bus, 446 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 447 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 448 if (err) 449 return (err); 450 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 451 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 452 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 453 454 /* 455 * Allocate a TD, inactive, that hangs from the last QH. 456 * This is to avoid a bug in the PIIX that makes it run berserk 457 * otherwise. 458 */ 459 std = uhci_alloc_std(sc); 460 if (std == NULL) 461 return (USBD_NOMEM); 462 std->link.std = NULL; 463 std->td.td_link = htole32(UHCI_PTR_T); 464 std->td.td_status = htole32(0); /* inactive */ 465 std->td.td_token = htole32(0); 466 std->td.td_buffer = htole32(0); 467 468 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 469 lsqh = uhci_alloc_sqh(sc); 470 if (lsqh == NULL) 471 return (USBD_NOMEM); 472 lsqh->hlink = NULL; 473 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 474 lsqh->elink = std; 475 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 476 sc->sc_last_qh = lsqh; 477 478 /* Allocate the dummy QH where bulk traffic will be queued. */ 479 bsqh = uhci_alloc_sqh(sc); 480 if (bsqh == NULL) 481 return (USBD_NOMEM); 482 bsqh->hlink = lsqh; 483 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 484 bsqh->elink = NULL; 485 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 486 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 487 488 /* Allocate dummy QH where high speed control traffic will be queued. */ 489 chsqh = uhci_alloc_sqh(sc); 490 if (chsqh == NULL) 491 return (USBD_NOMEM); 492 chsqh->hlink = bsqh; 493 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 494 chsqh->elink = NULL; 495 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 496 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 497 498 /* Allocate dummy QH where control traffic will be queued. */ 499 clsqh = uhci_alloc_sqh(sc); 500 if (clsqh == NULL) 501 return (USBD_NOMEM); 502 clsqh->hlink = bsqh; 503 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 504 clsqh->elink = NULL; 505 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 506 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 507 508 /* 509 * Make all (virtual) frame list pointers point to the interrupt 510 * queue heads and the interrupt queue heads at the control 511 * queue head and point the physical frame list to the virtual. 512 */ 513 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 514 std = uhci_alloc_std(sc); 515 sqh = uhci_alloc_sqh(sc); 516 if (std == NULL || sqh == NULL) 517 return (USBD_NOMEM); 518 std->link.sqh = sqh; 519 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 520 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 521 std->td.td_token = htole32(0); 522 std->td.td_buffer = htole32(0); 523 sqh->hlink = clsqh; 524 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 525 sqh->elink = NULL; 526 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 527 sc->sc_vframes[i].htd = std; 528 sc->sc_vframes[i].etd = std; 529 sc->sc_vframes[i].hqh = sqh; 530 sc->sc_vframes[i].eqh = sqh; 531 for (j = i; 532 j < UHCI_FRAMELIST_COUNT; 533 j += UHCI_VFRAMELIST_COUNT) 534 sc->sc_pframes[j] = htole32(std->physaddr); 535 } 536 537 LIST_INIT(&sc->sc_intrhead); 538 539 SIMPLEQ_INIT(&sc->sc_free_xfers); 540 541 usb_callout_init(sc->sc_poll_handle); 542 543 /* Set up the bus struct. */ 544 sc->sc_bus.methods = &uhci_bus_methods; 545 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 546 547 #if defined(__NetBSD__) || defined(__OpenBSD__) 548 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 549 #endif 550 551 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 552 553 DPRINTFN(1,("uhci_init: enabling\n")); 554 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 555 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 556 557 return (uhci_run(sc, 1)); /* and here we go... */ 558 } 559 560 #if defined(__NetBSD__) || defined(__OpenBSD__) 561 int 562 uhci_activate(device_ptr_t self, enum devact act) 563 { 564 struct uhci_softc *sc = (struct uhci_softc *)self; 565 int rv = 0; 566 567 switch (act) { 568 case DVACT_ACTIVATE: 569 return (EOPNOTSUPP); 570 571 case DVACT_DEACTIVATE: 572 sc->sc_dying = 1; 573 if (sc->sc_child != NULL) 574 rv = config_deactivate(sc->sc_child); 575 break; 576 } 577 return (rv); 578 } 579 580 int 581 uhci_detach(struct uhci_softc *sc, int flags) 582 { 583 usbd_xfer_handle xfer; 584 int rv = 0; 585 586 if (sc->sc_child != NULL) 587 rv = config_detach(sc->sc_child, flags); 588 589 if (rv != 0) 590 return (rv); 591 592 #if defined(__NetBSD__) || defined(__OpenBSD__) 593 shutdownhook_disestablish(sc->sc_shutdownhook); 594 #endif 595 596 /* Free all xfers associated with this HC. */ 597 for (;;) { 598 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 599 if (xfer == NULL) 600 break; 601 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 602 free(xfer, M_USB); 603 } 604 605 /* XXX free other data structures XXX */ 606 607 return (rv); 608 } 609 #endif 610 611 usbd_status 612 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 613 { 614 struct uhci_softc *sc = (struct uhci_softc *)bus; 615 usbd_status status; 616 u_int32_t n; 617 618 /* 619 * XXX 620 * Since we are allocating a buffer we can assume that we will 621 * need TDs for it. Since we don't want to allocate those from 622 * an interrupt context, we allocate them here and free them again. 623 * This is no guarantee that we'll get the TDs next time... 624 */ 625 n = size / 8; 626 if (n > 16) { 627 u_int32_t i; 628 uhci_soft_td_t **stds; 629 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 630 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 631 M_WAITOK|M_ZERO); 632 for(i=0; i < n; i++) 633 stds[i] = uhci_alloc_std(sc); 634 for(i=0; i < n; i++) 635 if (stds[i] != NULL) 636 uhci_free_std(sc, stds[i]); 637 free(stds, M_TEMP); 638 } 639 640 641 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 642 #ifdef __NetBSD__ 643 if (status == USBD_NOMEM) 644 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 645 #endif 646 return status; 647 } 648 649 void 650 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 651 { 652 #ifdef __NetBSD__ 653 if (dma->block->flags & USB_DMA_RESERVE) { 654 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 655 dma); 656 return; 657 } 658 #endif 659 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 660 } 661 662 usbd_xfer_handle 663 uhci_allocx(struct usbd_bus *bus) 664 { 665 struct uhci_softc *sc = (struct uhci_softc *)bus; 666 usbd_xfer_handle xfer; 667 668 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 669 if (xfer != NULL) { 670 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 671 #ifdef DIAGNOSTIC 672 if (xfer->busy_free != XFER_FREE) { 673 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 674 xfer->busy_free); 675 } 676 #endif 677 } else { 678 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 679 } 680 if (xfer != NULL) { 681 memset(xfer, 0, sizeof (struct uhci_xfer)); 682 UXFER(xfer)->iinfo.sc = sc; 683 #ifdef DIAGNOSTIC 684 UXFER(xfer)->iinfo.isdone = 1; 685 xfer->busy_free = XFER_BUSY; 686 #endif 687 } 688 return (xfer); 689 } 690 691 void 692 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 693 { 694 struct uhci_softc *sc = (struct uhci_softc *)bus; 695 696 #ifdef DIAGNOSTIC 697 if (xfer->busy_free != XFER_BUSY) { 698 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 699 xfer->busy_free); 700 } 701 xfer->busy_free = XFER_FREE; 702 if (!UXFER(xfer)->iinfo.isdone) { 703 printf("uhci_freex: !isdone\n"); 704 } 705 #endif 706 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 707 } 708 709 /* 710 * Shut down the controller when the system is going down. 711 */ 712 void 713 uhci_shutdown(void *v) 714 { 715 uhci_softc_t *sc = v; 716 int s; 717 718 DPRINTF(("uhci_shutdown: stopping the HC\n")); 719 720 /* 721 * Use polling mode to prevent the interrupts shutting 722 * us down before we shut them down. 723 */ 724 s = splhardusb(); 725 sc->sc_bus.use_polling++; 726 uhci_run(sc, 0); /* stop the controller */ 727 sc->sc_bus.use_polling--; 728 splx(s); 729 } 730 731 /* 732 * Handle suspend/resume. 733 * 734 * We need to switch to polling mode here, because this routine is 735 * called from an interrupt context. This is all right since we 736 * are almost suspended anyway. 737 */ 738 pnp_status_t 739 uhci_power(device_t dv, pnp_request_t req, void *opaque) 740 { 741 uhci_softc_t *sc = (uhci_softc_t *)dv; 742 pnp_state_t *pstate; 743 pnp_capabilities_t *pcaps; 744 int cmd; 745 int s; 746 747 switch (req) { 748 case PNP_REQUEST_GET_CAPABILITIES: 749 pcaps = opaque; 750 pcaps->state |= PNP_STATE_D0 | PNP_STATE_D3; 751 break; 752 case PNP_REQUEST_SET_STATE: 753 pstate = opaque; 754 755 s = splhardusb(); 756 757 cmd = UREAD2(sc, UHCI_CMD); 758 759 switch (*pstate) { 760 case PNP_STATE_D3: 761 #ifdef UHCI_DEBUG 762 if (uhcidebug > 2) 763 uhci_dumpregs(sc); 764 #endif 765 if (sc->sc_intr_xfer != NULL) 766 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 767 sc->sc_intr_xfer); 768 sc->sc_bus.use_polling++; 769 uhci_run(sc, 0); /* stop the controller */ 770 cmd &= ~UHCI_CMD_RS; 771 772 /* save some state if BIOS doesn't */ 773 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 774 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 775 776 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 777 778 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter suspend */ 779 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 780 sc->sc_bus.use_polling--; 781 break; 782 case PNP_STATE_D0: 783 sc->sc_bus.use_polling++; 784 if (cmd & UHCI_CMD_RS) 785 uhci_run(sc, 0); 786 787 /* restore saved state */ 788 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 789 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 790 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 791 792 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 793 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 794 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 795 UHCICMD(sc, UHCI_CMD_MAXP); 796 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 797 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 798 uhci_run(sc, 1); /* and start traffic again */ 799 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 800 sc->sc_bus.use_polling--; 801 if (sc->sc_intr_xfer != NULL) 802 usb_callout(sc->sc_poll_handle, sc->sc_ival, 803 uhci_poll_hub, sc->sc_intr_xfer); 804 #ifdef UHCI_DEBUG 805 if (uhcidebug > 2) 806 uhci_dumpregs(sc); 807 #endif 808 break; 809 default: 810 break; 811 } 812 813 splx(s); 814 815 break; 816 default: 817 break; 818 } 819 820 return PNP_STATUS_SUCCESS; 821 } 822 823 #ifdef UHCI_DEBUG 824 Static void 825 uhci_dumpregs(uhci_softc_t *sc) 826 { 827 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 828 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 829 USBDEVNAME(sc->sc_bus.bdev), 830 UREAD2(sc, UHCI_CMD), 831 UREAD2(sc, UHCI_STS), 832 UREAD2(sc, UHCI_INTR), 833 UREAD2(sc, UHCI_FRNUM), 834 UREAD4(sc, UHCI_FLBASEADDR), 835 UREAD1(sc, UHCI_SOF), 836 UREAD2(sc, UHCI_PORTSC1), 837 UREAD2(sc, UHCI_PORTSC2))); 838 } 839 840 void 841 uhci_dump_td(uhci_soft_td_t *p) 842 { 843 char sbuf[128], sbuf2[128]; 844 845 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 846 "token=0x%08lx buffer=0x%08lx\n", 847 p, (long)p->physaddr, 848 (long)le32toh(p->td.td_link), 849 (long)le32toh(p->td.td_status), 850 (long)le32toh(p->td.td_token), 851 (long)le32toh(p->td.td_buffer))); 852 853 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 854 sbuf, sizeof(sbuf)); 855 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 856 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 857 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 858 sbuf2, sizeof(sbuf2)); 859 860 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 861 "D=%d,maxlen=%d\n", sbuf, sbuf2, 862 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 863 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 864 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 865 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 866 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 867 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 868 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 869 } 870 871 void 872 uhci_dump_qh(uhci_soft_qh_t *sqh) 873 { 874 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 875 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 876 le32toh(sqh->qh.qh_elink))); 877 } 878 879 880 #if 1 881 void 882 uhci_dump(void) 883 { 884 uhci_dump_all(thesc); 885 } 886 #endif 887 888 void 889 uhci_dump_all(uhci_softc_t *sc) 890 { 891 uhci_dumpregs(sc); 892 printf("intrs=%d\n", sc->sc_bus.no_intrs); 893 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 894 uhci_dump_qh(sc->sc_lctl_start); 895 } 896 897 898 void 899 uhci_dump_qhs(uhci_soft_qh_t *sqh) 900 { 901 uhci_dump_qh(sqh); 902 903 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 904 * Traverses sideways first, then down. 905 * 906 * QH1 907 * QH2 908 * No QH 909 * TD2.1 910 * TD2.2 911 * TD1.1 912 * etc. 913 * 914 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 915 */ 916 917 918 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 919 uhci_dump_qhs(sqh->hlink); 920 else 921 DPRINTF(("No QH\n")); 922 923 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 924 uhci_dump_tds(sqh->elink); 925 else 926 DPRINTF(("No TD\n")); 927 } 928 929 void 930 uhci_dump_tds(uhci_soft_td_t *std) 931 { 932 uhci_soft_td_t *td; 933 934 for(td = std; td != NULL; td = td->link.std) { 935 uhci_dump_td(td); 936 937 /* Check whether the link pointer in this TD marks 938 * the link pointer as end of queue. This avoids 939 * printing the free list in case the queue/TD has 940 * already been moved there (seatbelt). 941 */ 942 if (le32toh(td->td.td_link) & UHCI_PTR_T || 943 le32toh(td->td.td_link) == 0) 944 break; 945 } 946 } 947 948 Static void 949 uhci_dump_ii(uhci_intr_info_t *ii) 950 { 951 usbd_pipe_handle pipe; 952 usb_endpoint_descriptor_t *ed; 953 usbd_device_handle dev; 954 955 #ifdef DIAGNOSTIC 956 #define DONE ii->isdone 957 #else 958 #define DONE 0 959 #endif 960 if (ii == NULL) { 961 printf("ii NULL\n"); 962 return; 963 } 964 if (ii->xfer == NULL) { 965 printf("ii %p: done=%d xfer=NULL\n", 966 ii, DONE); 967 return; 968 } 969 pipe = ii->xfer->pipe; 970 if (pipe == NULL) { 971 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 972 ii, DONE, ii->xfer); 973 return; 974 } 975 if (pipe->endpoint == NULL) { 976 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 977 ii, DONE, ii->xfer, pipe); 978 return; 979 } 980 if (pipe->device == NULL) { 981 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 982 ii, DONE, ii->xfer, pipe); 983 return; 984 } 985 ed = pipe->endpoint->edesc; 986 dev = pipe->device; 987 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", 988 ii, DONE, ii->xfer, dev, 989 UGETW(dev->ddesc.idVendor), 990 UGETW(dev->ddesc.idProduct), 991 dev->address, pipe, 992 ed->bEndpointAddress, ed->bmAttributes); 993 #undef DONE 994 } 995 996 void uhci_dump_iis(struct uhci_softc *sc); 997 void 998 uhci_dump_iis(struct uhci_softc *sc) 999 { 1000 uhci_intr_info_t *ii; 1001 1002 printf("intr_info list:\n"); 1003 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1004 uhci_dump_ii(ii); 1005 } 1006 1007 void iidump(void); 1008 void iidump(void) { uhci_dump_iis(thesc); } 1009 1010 #endif 1011 1012 /* 1013 * This routine is executed periodically and simulates interrupts 1014 * from the root controller interrupt pipe for port status change. 1015 */ 1016 void 1017 uhci_poll_hub(void *addr) 1018 { 1019 usbd_xfer_handle xfer = addr; 1020 usbd_pipe_handle pipe = xfer->pipe; 1021 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1022 int s; 1023 u_char *p; 1024 1025 DPRINTFN(20, ("uhci_poll_hub\n")); 1026 1027 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1028 1029 p = KERNADDR(&xfer->dmabuf, 0); 1030 p[0] = 0; 1031 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1032 p[0] |= 1<<1; 1033 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1034 p[0] |= 1<<2; 1035 if (p[0] == 0) 1036 /* No change, try again in a while */ 1037 return; 1038 1039 xfer->actlen = 1; 1040 xfer->status = USBD_NORMAL_COMPLETION; 1041 s = splusb(); 1042 xfer->device->bus->intr_context++; 1043 usb_transfer_complete(xfer); 1044 xfer->device->bus->intr_context--; 1045 splx(s); 1046 } 1047 1048 void 1049 uhci_root_intr_done(usbd_xfer_handle xfer) 1050 { 1051 } 1052 1053 void 1054 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1055 { 1056 } 1057 1058 /* 1059 * Let the last QH loop back to the high speed control transfer QH. 1060 * This is what intel calls "bandwidth reclamation" and improves 1061 * USB performance a lot for some devices. 1062 * If we are already looping, just count it. 1063 */ 1064 void 1065 uhci_add_loop(uhci_softc_t *sc) { 1066 #ifdef UHCI_DEBUG 1067 if (uhcinoloop) 1068 return; 1069 #endif 1070 if (++sc->sc_loops == 1) { 1071 DPRINTFN(5,("uhci_start_loop: add\n")); 1072 /* Note, we don't loop back the soft pointer. */ 1073 sc->sc_last_qh->qh.qh_hlink = 1074 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1075 } 1076 } 1077 1078 void 1079 uhci_rem_loop(uhci_softc_t *sc) { 1080 #ifdef UHCI_DEBUG 1081 if (uhcinoloop) 1082 return; 1083 #endif 1084 if (--sc->sc_loops == 0) { 1085 DPRINTFN(5,("uhci_end_loop: remove\n")); 1086 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1087 } 1088 } 1089 1090 /* Add high speed control QH, called at splusb(). */ 1091 void 1092 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1093 { 1094 uhci_soft_qh_t *eqh; 1095 1096 SPLUSBCHECK; 1097 1098 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1099 eqh = sc->sc_hctl_end; 1100 sqh->hlink = eqh->hlink; 1101 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1102 eqh->hlink = sqh; 1103 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1104 sc->sc_hctl_end = sqh; 1105 #ifdef UHCI_CTL_LOOP 1106 uhci_add_loop(sc); 1107 #endif 1108 } 1109 1110 /* Remove high speed control QH, called at splusb(). */ 1111 void 1112 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1113 { 1114 uhci_soft_qh_t *pqh; 1115 1116 SPLUSBCHECK; 1117 1118 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1119 #ifdef UHCI_CTL_LOOP 1120 uhci_rem_loop(sc); 1121 #endif 1122 /* 1123 * The T bit should be set in the elink of the QH so that the HC 1124 * doesn't follow the pointer. This condition may fail if the 1125 * the transferred packet was short so that the QH still points 1126 * at the last used TD. 1127 * In this case we set the T bit and wait a little for the HC 1128 * to stop looking at the TD. 1129 */ 1130 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1131 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1132 delay(UHCI_QH_REMOVE_DELAY); 1133 } 1134 1135 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1136 pqh->hlink = sqh->hlink; 1137 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1138 delay(UHCI_QH_REMOVE_DELAY); 1139 if (sc->sc_hctl_end == sqh) 1140 sc->sc_hctl_end = pqh; 1141 } 1142 1143 /* Add low speed control QH, called at splusb(). */ 1144 void 1145 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1146 { 1147 uhci_soft_qh_t *eqh; 1148 1149 SPLUSBCHECK; 1150 1151 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1152 eqh = sc->sc_lctl_end; 1153 sqh->hlink = eqh->hlink; 1154 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1155 eqh->hlink = sqh; 1156 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1157 sc->sc_lctl_end = sqh; 1158 } 1159 1160 /* Remove low speed control QH, called at splusb(). */ 1161 void 1162 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1163 { 1164 uhci_soft_qh_t *pqh; 1165 1166 SPLUSBCHECK; 1167 1168 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1169 /* See comment in uhci_remove_hs_ctrl() */ 1170 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1171 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1172 delay(UHCI_QH_REMOVE_DELAY); 1173 } 1174 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1175 pqh->hlink = sqh->hlink; 1176 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1177 delay(UHCI_QH_REMOVE_DELAY); 1178 if (sc->sc_lctl_end == sqh) 1179 sc->sc_lctl_end = pqh; 1180 } 1181 1182 /* Add bulk QH, called at splusb(). */ 1183 void 1184 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1185 { 1186 uhci_soft_qh_t *eqh; 1187 1188 SPLUSBCHECK; 1189 1190 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1191 eqh = sc->sc_bulk_end; 1192 sqh->hlink = eqh->hlink; 1193 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1194 eqh->hlink = sqh; 1195 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1196 sc->sc_bulk_end = sqh; 1197 uhci_add_loop(sc); 1198 } 1199 1200 /* Remove bulk QH, called at splusb(). */ 1201 void 1202 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1203 { 1204 uhci_soft_qh_t *pqh; 1205 1206 SPLUSBCHECK; 1207 1208 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1209 uhci_rem_loop(sc); 1210 /* See comment in uhci_remove_hs_ctrl() */ 1211 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1212 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1213 delay(UHCI_QH_REMOVE_DELAY); 1214 } 1215 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1216 pqh->hlink = sqh->hlink; 1217 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1218 delay(UHCI_QH_REMOVE_DELAY); 1219 if (sc->sc_bulk_end == sqh) 1220 sc->sc_bulk_end = pqh; 1221 } 1222 1223 Static int uhci_intr1(uhci_softc_t *); 1224 1225 int 1226 uhci_intr(void *arg) 1227 { 1228 uhci_softc_t *sc = arg; 1229 1230 if (sc->sc_dying) 1231 return (0); 1232 1233 if (sc->sc_bus.use_polling) { 1234 #ifdef DIAGNOSTIC 1235 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1236 #endif 1237 return (0); 1238 } 1239 1240 return (uhci_intr1(sc)); 1241 } 1242 1243 int 1244 uhci_intr1(uhci_softc_t *sc) 1245 { 1246 int status; 1247 int ack; 1248 1249 #ifdef UHCI_DEBUG 1250 if (uhcidebug > 15) { 1251 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1252 uhci_dumpregs(sc); 1253 } 1254 #endif 1255 1256 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1257 if (status == 0) /* The interrupt was not for us. */ 1258 return (0); 1259 1260 if (sc->sc_suspend != PWR_RESUME) { 1261 #ifdef DIAGNOSTIC 1262 printf("%s: interrupt while not operating ignored\n", 1263 USBDEVNAME(sc->sc_bus.bdev)); 1264 #endif 1265 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1266 return (0); 1267 } 1268 1269 ack = 0; 1270 if (status & UHCI_STS_USBINT) 1271 ack |= UHCI_STS_USBINT; 1272 if (status & UHCI_STS_USBEI) 1273 ack |= UHCI_STS_USBEI; 1274 if (status & UHCI_STS_RD) { 1275 ack |= UHCI_STS_RD; 1276 #ifdef UHCI_DEBUG 1277 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1278 #endif 1279 } 1280 if (status & UHCI_STS_HSE) { 1281 ack |= UHCI_STS_HSE; 1282 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1283 } 1284 if (status & UHCI_STS_HCPE) { 1285 ack |= UHCI_STS_HCPE; 1286 printf("%s: host controller process error\n", 1287 USBDEVNAME(sc->sc_bus.bdev)); 1288 } 1289 if (status & UHCI_STS_HCH) { 1290 /* no acknowledge needed */ 1291 if (!sc->sc_dying) { 1292 printf("%s: host controller halted\n", 1293 USBDEVNAME(sc->sc_bus.bdev)); 1294 #ifdef UHCI_DEBUG 1295 uhci_dump_all(sc); 1296 #endif 1297 } 1298 sc->sc_dying = 1; 1299 } 1300 1301 if (!ack) 1302 return (0); /* nothing to acknowledge */ 1303 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1304 1305 sc->sc_bus.no_intrs++; 1306 usb_schedsoftintr(&sc->sc_bus); 1307 1308 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1309 1310 return (1); 1311 } 1312 1313 void 1314 uhci_softintr(void *v) 1315 { 1316 uhci_softc_t *sc = v; 1317 uhci_intr_info_t *ii, *nextii; 1318 1319 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1320 sc->sc_bus.intr_context)); 1321 1322 sc->sc_bus.intr_context++; 1323 1324 /* 1325 * Interrupts on UHCI really suck. When the host controller 1326 * interrupts because a transfer is completed there is no 1327 * way of knowing which transfer it was. You can scan down 1328 * the TDs and QHs of the previous frame to limit the search, 1329 * but that assumes that the interrupt was not delayed by more 1330 * than 1 ms, which may not always be true (e.g. after debug 1331 * output on a slow console). 1332 * We scan all interrupt descriptors to see if any have 1333 * completed. 1334 */ 1335 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1336 nextii = LIST_NEXT(ii, list); 1337 uhci_check_intr(sc, ii); 1338 } 1339 1340 #ifdef USB_USE_SOFTINTR 1341 if (sc->sc_softwake) { 1342 sc->sc_softwake = 0; 1343 wakeup(&sc->sc_softwake); 1344 } 1345 #endif /* USB_USE_SOFTINTR */ 1346 1347 sc->sc_bus.intr_context--; 1348 } 1349 1350 /* Check for an interrupt. */ 1351 void 1352 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1353 { 1354 uhci_soft_td_t *std, *lstd; 1355 u_int32_t status; 1356 1357 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1358 #ifdef DIAGNOSTIC 1359 if (ii == NULL) { 1360 printf("uhci_check_intr: no ii? %p\n", ii); 1361 return; 1362 } 1363 #endif 1364 if (ii->xfer->status == USBD_CANCELLED || 1365 ii->xfer->status == USBD_TIMEOUT) { 1366 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1367 return; 1368 } 1369 1370 if (ii->stdstart == NULL) 1371 return; 1372 lstd = ii->stdend; 1373 #ifdef DIAGNOSTIC 1374 if (lstd == NULL) { 1375 printf("uhci_check_intr: std==0\n"); 1376 return; 1377 } 1378 #endif 1379 /* 1380 * If the last TD is still active we need to check whether there 1381 * is an error somewhere in the middle, or whether there was a 1382 * short packet (SPD and not ACTIVE). 1383 */ 1384 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1385 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1386 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1387 status = le32toh(std->td.td_status); 1388 /* If there's an active TD the xfer isn't done. */ 1389 if (status & UHCI_TD_ACTIVE) 1390 break; 1391 /* Any kind of error makes the xfer done. */ 1392 if (status & UHCI_TD_STALLED) 1393 goto done; 1394 /* We want short packets, and it is short: it's done */ 1395 if ((status & UHCI_TD_SPD) && 1396 UHCI_TD_GET_ACTLEN(status) < 1397 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1398 goto done; 1399 } 1400 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1401 ii, ii->stdstart)); 1402 return; 1403 } 1404 done: 1405 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1406 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1407 uhci_idone(ii); 1408 } 1409 1410 /* Called at splusb() */ 1411 void 1412 uhci_idone(uhci_intr_info_t *ii) 1413 { 1414 usbd_xfer_handle xfer = ii->xfer; 1415 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1416 uhci_soft_td_t *std; 1417 u_int32_t status = 0, nstatus; 1418 int actlen; 1419 1420 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1421 #ifdef DIAGNOSTIC 1422 { 1423 int s = splhigh(); 1424 if (ii->isdone) { 1425 splx(s); 1426 #ifdef UHCI_DEBUG 1427 printf("uhci_idone: ii is done!\n "); 1428 uhci_dump_ii(ii); 1429 #else 1430 printf("uhci_idone: ii=%p is done!\n", ii); 1431 #endif 1432 return; 1433 } 1434 ii->isdone = 1; 1435 splx(s); 1436 } 1437 #endif 1438 1439 if (xfer->nframes != 0) { 1440 /* Isoc transfer, do things differently. */ 1441 uhci_soft_td_t **stds = upipe->u.iso.stds; 1442 int i, n, nframes, len; 1443 1444 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1445 1446 nframes = xfer->nframes; 1447 actlen = 0; 1448 n = UXFER(xfer)->curframe; 1449 for (i = 0; i < nframes; i++) { 1450 std = stds[n]; 1451 #ifdef UHCI_DEBUG 1452 if (uhcidebug > 5) { 1453 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1454 uhci_dump_td(std); 1455 } 1456 #endif 1457 if (++n >= UHCI_VFRAMELIST_COUNT) 1458 n = 0; 1459 status = le32toh(std->td.td_status); 1460 len = UHCI_TD_GET_ACTLEN(status); 1461 xfer->frlengths[i] = len; 1462 actlen += len; 1463 } 1464 upipe->u.iso.inuse -= nframes; 1465 xfer->actlen = actlen; 1466 xfer->status = USBD_NORMAL_COMPLETION; 1467 goto end; 1468 } 1469 1470 #ifdef UHCI_DEBUG 1471 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1472 ii, xfer, upipe)); 1473 if (uhcidebug > 10) 1474 uhci_dump_tds(ii->stdstart); 1475 #endif 1476 1477 /* The transfer is done, compute actual length and status. */ 1478 actlen = 0; 1479 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1480 nstatus = le32toh(std->td.td_status); 1481 if (nstatus & UHCI_TD_ACTIVE) 1482 break; 1483 1484 status = nstatus; 1485 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1486 UHCI_TD_PID_SETUP) 1487 actlen += UHCI_TD_GET_ACTLEN(status); 1488 else { 1489 /* 1490 * UHCI will report CRCTO in addition to a STALL or NAK 1491 * for a SETUP transaction. See section 3.2.2, "TD 1492 * CONTROL AND STATUS". 1493 */ 1494 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1495 status &= ~UHCI_TD_CRCTO; 1496 } 1497 } 1498 /* If there are left over TDs we need to update the toggle. */ 1499 if (std != NULL) 1500 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1501 1502 status &= UHCI_TD_ERROR; 1503 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1504 actlen, status)); 1505 xfer->actlen = actlen; 1506 if (status != 0) { 1507 #ifdef UHCI_DEBUG 1508 char sbuf[128]; 1509 1510 bitmask_snprintf((u_int32_t)status, 1511 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1512 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1513 sbuf, sizeof(sbuf)); 1514 1515 DPRINTFN((status == UHCI_TD_STALLED)*10, 1516 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1517 "status 0x%s\n", 1518 xfer->pipe->device->address, 1519 xfer->pipe->endpoint->edesc->bEndpointAddress, 1520 sbuf)); 1521 #endif 1522 1523 if (status == UHCI_TD_STALLED) 1524 xfer->status = USBD_STALLED; 1525 else 1526 xfer->status = USBD_IOERROR; /* more info XXX */ 1527 } else { 1528 xfer->status = USBD_NORMAL_COMPLETION; 1529 } 1530 1531 end: 1532 usb_transfer_complete(xfer); 1533 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1534 } 1535 1536 /* 1537 * Called when a request does not complete. 1538 */ 1539 void 1540 uhci_timeout(void *addr) 1541 { 1542 uhci_intr_info_t *ii = addr; 1543 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1544 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1545 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1546 1547 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1548 1549 if (sc->sc_dying) { 1550 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1551 return; 1552 } 1553 1554 /* Execute the abort in a process context. */ 1555 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1556 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1557 USB_TASKQ_HC); 1558 } 1559 1560 void 1561 uhci_timeout_task(void *addr) 1562 { 1563 usbd_xfer_handle xfer = addr; 1564 int s; 1565 1566 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1567 1568 s = splusb(); 1569 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1570 splx(s); 1571 } 1572 1573 /* 1574 * Wait here until controller claims to have an interrupt. 1575 * Then call uhci_intr and return. Use timeout to avoid waiting 1576 * too long. 1577 * Only used during boot when interrupts are not enabled yet. 1578 */ 1579 void 1580 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1581 { 1582 int timo = xfer->timeout; 1583 uhci_intr_info_t *ii; 1584 1585 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1586 1587 xfer->status = USBD_IN_PROGRESS; 1588 for (; timo >= 0; timo--) { 1589 usb_delay_ms(&sc->sc_bus, 1); 1590 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1591 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1592 uhci_intr1(sc); 1593 if (xfer->status != USBD_IN_PROGRESS) 1594 return; 1595 } 1596 } 1597 1598 /* Timeout */ 1599 DPRINTF(("uhci_waitintr: timeout\n")); 1600 for (ii = LIST_FIRST(&sc->sc_intrhead); 1601 ii != NULL && ii->xfer != xfer; 1602 ii = LIST_NEXT(ii, list)) 1603 ; 1604 #ifdef DIAGNOSTIC 1605 if (ii == NULL) 1606 panic("uhci_waitintr: lost intr_info"); 1607 #endif 1608 uhci_idone(ii); 1609 } 1610 1611 void 1612 uhci_poll(struct usbd_bus *bus) 1613 { 1614 uhci_softc_t *sc = (uhci_softc_t *)bus; 1615 1616 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1617 uhci_intr1(sc); 1618 } 1619 1620 void 1621 uhci_reset(uhci_softc_t *sc) 1622 { 1623 int n; 1624 1625 UHCICMD(sc, UHCI_CMD_HCRESET); 1626 /* The reset bit goes low when the controller is done. */ 1627 for (n = 0; n < UHCI_RESET_TIMEOUT && 1628 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1629 usb_delay_ms(&sc->sc_bus, 1); 1630 if (n >= UHCI_RESET_TIMEOUT) 1631 printf("%s: controller did not reset\n", 1632 USBDEVNAME(sc->sc_bus.bdev)); 1633 } 1634 1635 usbd_status 1636 uhci_run(uhci_softc_t *sc, int run) 1637 { 1638 int s, n, running; 1639 u_int16_t cmd; 1640 1641 run = run != 0; 1642 s = splhardusb(); 1643 DPRINTF(("uhci_run: setting run=%d\n", run)); 1644 cmd = UREAD2(sc, UHCI_CMD); 1645 if (run) 1646 cmd |= UHCI_CMD_RS; 1647 else 1648 cmd &= ~UHCI_CMD_RS; 1649 UHCICMD(sc, cmd); 1650 for(n = 0; n < 10; n++) { 1651 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1652 /* return when we've entered the state we want */ 1653 if (run == running) { 1654 splx(s); 1655 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1656 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1657 return (USBD_NORMAL_COMPLETION); 1658 } 1659 usb_delay_ms(&sc->sc_bus, 1); 1660 } 1661 splx(s); 1662 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1663 run ? "start" : "stop"); 1664 return (USBD_IOERROR); 1665 } 1666 1667 /* 1668 * Memory management routines. 1669 * uhci_alloc_std allocates TDs 1670 * uhci_alloc_sqh allocates QHs 1671 * These two routines do their own free list management, 1672 * partly for speed, partly because allocating DMAable memory 1673 * has page size granularaity so much memory would be wasted if 1674 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1675 */ 1676 1677 uhci_soft_td_t * 1678 uhci_alloc_std(uhci_softc_t *sc) 1679 { 1680 uhci_soft_td_t *std; 1681 usbd_status err; 1682 int i, offs; 1683 usb_dma_t dma; 1684 1685 if (sc->sc_freetds == NULL) { 1686 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1687 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1688 UHCI_TD_ALIGN, &dma); 1689 if (err) 1690 return (0); 1691 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1692 offs = i * UHCI_STD_SIZE; 1693 std = KERNADDR(&dma, offs); 1694 std->physaddr = DMAADDR(&dma, offs); 1695 std->link.std = sc->sc_freetds; 1696 sc->sc_freetds = std; 1697 } 1698 } 1699 std = sc->sc_freetds; 1700 sc->sc_freetds = std->link.std; 1701 memset(&std->td, 0, sizeof(uhci_td_t)); 1702 return std; 1703 } 1704 1705 void 1706 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1707 { 1708 #ifdef DIAGNOSTIC 1709 #define TD_IS_FREE 0x12345678 1710 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1711 printf("uhci_free_std: freeing free TD %p\n", std); 1712 return; 1713 } 1714 std->td.td_token = htole32(TD_IS_FREE); 1715 #endif 1716 std->link.std = sc->sc_freetds; 1717 sc->sc_freetds = std; 1718 } 1719 1720 uhci_soft_qh_t * 1721 uhci_alloc_sqh(uhci_softc_t *sc) 1722 { 1723 uhci_soft_qh_t *sqh; 1724 usbd_status err; 1725 int i, offs; 1726 usb_dma_t dma; 1727 1728 if (sc->sc_freeqhs == NULL) { 1729 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1730 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1731 UHCI_QH_ALIGN, &dma); 1732 if (err) 1733 return (0); 1734 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1735 offs = i * UHCI_SQH_SIZE; 1736 sqh = KERNADDR(&dma, offs); 1737 sqh->physaddr = DMAADDR(&dma, offs); 1738 sqh->hlink = sc->sc_freeqhs; 1739 sc->sc_freeqhs = sqh; 1740 } 1741 } 1742 sqh = sc->sc_freeqhs; 1743 sc->sc_freeqhs = sqh->hlink; 1744 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1745 return (sqh); 1746 } 1747 1748 void 1749 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1750 { 1751 sqh->hlink = sc->sc_freeqhs; 1752 sc->sc_freeqhs = sqh; 1753 } 1754 1755 void 1756 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1757 uhci_soft_td_t *stdend) 1758 { 1759 uhci_soft_td_t *p; 1760 1761 for (; std != stdend; std = p) { 1762 p = std->link.std; 1763 uhci_free_std(sc, std); 1764 } 1765 } 1766 1767 usbd_status 1768 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1769 int rd, u_int16_t flags, usb_dma_t *dma, 1770 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1771 { 1772 uhci_soft_td_t *p, *lastp; 1773 uhci_physaddr_t lastlink; 1774 int i, ntd, l, tog, maxp; 1775 u_int32_t status; 1776 int addr = upipe->pipe.device->address; 1777 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1778 1779 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1780 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1781 upipe->pipe.device->speed, flags)); 1782 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1783 if (maxp == 0) { 1784 printf("uhci_alloc_std_chain: maxp=0\n"); 1785 return (USBD_INVAL); 1786 } 1787 ntd = (len + maxp - 1) / maxp; 1788 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1789 ntd++; 1790 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1791 if (ntd == 0) { 1792 *sp = *ep = 0; 1793 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1794 return (USBD_NORMAL_COMPLETION); 1795 } 1796 tog = upipe->nexttoggle; 1797 if (ntd % 2 == 0) 1798 tog ^= 1; 1799 upipe->nexttoggle = tog ^ 1; 1800 lastp = NULL; 1801 lastlink = UHCI_PTR_T; 1802 ntd--; 1803 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1804 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1805 status |= UHCI_TD_LS; 1806 if (flags & USBD_SHORT_XFER_OK) 1807 status |= UHCI_TD_SPD; 1808 for (i = ntd; i >= 0; i--) { 1809 p = uhci_alloc_std(sc); 1810 if (p == NULL) { 1811 KASSERT(lastp != NULL); 1812 uhci_free_std_chain(sc, lastp, NULL); 1813 return (USBD_NOMEM); 1814 } 1815 p->link.std = lastp; 1816 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1817 lastp = p; 1818 lastlink = p->physaddr; 1819 p->td.td_status = htole32(status); 1820 if (i == ntd) { 1821 /* last TD */ 1822 l = len % maxp; 1823 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1824 l = maxp; 1825 *ep = p; 1826 } else 1827 l = maxp; 1828 p->td.td_token = 1829 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1830 UHCI_TD_OUT(l, endpt, addr, tog)); 1831 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1832 tog ^= 1; 1833 } 1834 *sp = lastp; 1835 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1836 upipe->nexttoggle)); 1837 return (USBD_NORMAL_COMPLETION); 1838 } 1839 1840 void 1841 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1842 { 1843 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1844 upipe->nexttoggle = 0; 1845 } 1846 1847 void 1848 uhci_noop(usbd_pipe_handle pipe) 1849 { 1850 } 1851 1852 usbd_status 1853 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1854 { 1855 usbd_status err; 1856 1857 /* Insert last in queue. */ 1858 err = usb_insert_transfer(xfer); 1859 if (err) 1860 return (err); 1861 1862 /* 1863 * Pipe isn't running (otherwise err would be USBD_INPROG), 1864 * so start it first. 1865 */ 1866 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1867 } 1868 1869 usbd_status 1870 uhci_device_bulk_start(usbd_xfer_handle xfer) 1871 { 1872 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1873 usbd_device_handle dev = upipe->pipe.device; 1874 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1875 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1876 uhci_soft_td_t *data, *dataend; 1877 uhci_soft_qh_t *sqh; 1878 usbd_status err; 1879 int len, isread, endpt; 1880 int s; 1881 1882 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1883 xfer, xfer->length, xfer->flags, ii)); 1884 1885 if (sc->sc_dying) 1886 return (USBD_IOERROR); 1887 1888 #ifdef DIAGNOSTIC 1889 if (xfer->rqflags & URQ_REQUEST) 1890 panic("uhci_device_bulk_transfer: a request"); 1891 #endif 1892 1893 len = xfer->length; 1894 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1895 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1896 sqh = upipe->u.bulk.sqh; 1897 1898 upipe->u.bulk.isread = isread; 1899 upipe->u.bulk.length = len; 1900 1901 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1902 &xfer->dmabuf, &data, &dataend); 1903 if (err) 1904 return (err); 1905 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1906 1907 #ifdef UHCI_DEBUG 1908 if (uhcidebug > 8) { 1909 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1910 uhci_dump_tds(data); 1911 } 1912 #endif 1913 1914 /* Set up interrupt info. */ 1915 ii->xfer = xfer; 1916 ii->stdstart = data; 1917 ii->stdend = dataend; 1918 #ifdef DIAGNOSTIC 1919 if (!ii->isdone) { 1920 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1921 } 1922 ii->isdone = 0; 1923 #endif 1924 1925 sqh->elink = data; 1926 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1927 1928 s = splusb(); 1929 uhci_add_bulk(sc, sqh); 1930 uhci_add_intr_info(sc, ii); 1931 1932 if (xfer->timeout && !sc->sc_bus.use_polling) { 1933 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1934 uhci_timeout, ii); 1935 } 1936 xfer->status = USBD_IN_PROGRESS; 1937 splx(s); 1938 1939 #ifdef UHCI_DEBUG 1940 if (uhcidebug > 10) { 1941 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1942 uhci_dump_tds(data); 1943 } 1944 #endif 1945 1946 if (sc->sc_bus.use_polling) 1947 uhci_waitintr(sc, xfer); 1948 1949 return (USBD_IN_PROGRESS); 1950 } 1951 1952 /* Abort a device bulk request. */ 1953 void 1954 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1955 { 1956 DPRINTF(("uhci_device_bulk_abort:\n")); 1957 uhci_abort_xfer(xfer, USBD_CANCELLED); 1958 } 1959 1960 /* 1961 * Abort a device request. 1962 * If this routine is called at splusb() it guarantees that the request 1963 * will be removed from the hardware scheduling and that the callback 1964 * for it will be called with USBD_CANCELLED status. 1965 * It's impossible to guarantee that the requested transfer will not 1966 * have happened since the hardware runs concurrently. 1967 * If the transaction has already happened we rely on the ordinary 1968 * interrupt processing to process it. 1969 */ 1970 void 1971 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1972 { 1973 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1974 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1975 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1976 uhci_soft_td_t *std; 1977 int s; 1978 int wake; 1979 1980 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1981 1982 if (sc->sc_dying) { 1983 /* If we're dying, just do the software part. */ 1984 s = splusb(); 1985 xfer->status = status; /* make software ignore it */ 1986 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1987 usb_transfer_complete(xfer); 1988 splx(s); 1989 return; 1990 } 1991 1992 if (xfer->device->bus->intr_context || !curproc) 1993 panic("uhci_abort_xfer: not in process context"); 1994 1995 /* 1996 * If an abort is already in progress then just wait for it to 1997 * complete and return. 1998 */ 1999 if (xfer->hcflags & UXFER_ABORTING) { 2000 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 2001 #ifdef DIAGNOSTIC 2002 if (status == USBD_TIMEOUT) 2003 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 2004 #endif 2005 /* Override the status which might be USBD_TIMEOUT. */ 2006 xfer->status = status; 2007 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2008 xfer->hcflags |= UXFER_ABORTWAIT; 2009 while (xfer->hcflags & UXFER_ABORTING) 2010 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2011 return; 2012 } 2013 xfer->hcflags |= UXFER_ABORTING; 2014 2015 /* 2016 * Step 1: Make interrupt routine and hardware ignore xfer. 2017 */ 2018 s = splusb(); 2019 xfer->status = status; /* make software ignore it */ 2020 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2021 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2022 for (std = ii->stdstart; std != NULL; std = std->link.std) 2023 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2024 splx(s); 2025 2026 /* 2027 * Step 2: Wait until we know hardware has finished any possible 2028 * use of the xfer. Also make sure the soft interrupt routine 2029 * has run. 2030 */ 2031 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2032 s = splusb(); 2033 #ifdef USB_USE_SOFTINTR 2034 sc->sc_softwake = 1; 2035 #endif /* USB_USE_SOFTINTR */ 2036 usb_schedsoftintr(&sc->sc_bus); 2037 #ifdef USB_USE_SOFTINTR 2038 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2039 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2040 #endif /* USB_USE_SOFTINTR */ 2041 splx(s); 2042 2043 /* 2044 * Step 3: Execute callback. 2045 */ 2046 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2047 s = splusb(); 2048 #ifdef DIAGNOSTIC 2049 ii->isdone = 1; 2050 #endif 2051 wake = xfer->hcflags & UXFER_ABORTWAIT; 2052 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2053 usb_transfer_complete(xfer); 2054 if (wake) 2055 wakeup(&xfer->hcflags); 2056 splx(s); 2057 } 2058 2059 /* Close a device bulk pipe. */ 2060 void 2061 uhci_device_bulk_close(usbd_pipe_handle pipe) 2062 { 2063 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2064 usbd_device_handle dev = upipe->pipe.device; 2065 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2066 2067 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2068 } 2069 2070 usbd_status 2071 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2072 { 2073 usbd_status err; 2074 2075 /* Insert last in queue. */ 2076 err = usb_insert_transfer(xfer); 2077 if (err) 2078 return (err); 2079 2080 /* 2081 * Pipe isn't running (otherwise err would be USBD_INPROG), 2082 * so start it first. 2083 */ 2084 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2085 } 2086 2087 usbd_status 2088 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2089 { 2090 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2091 usbd_status err; 2092 2093 if (sc->sc_dying) 2094 return (USBD_IOERROR); 2095 2096 #ifdef DIAGNOSTIC 2097 if (!(xfer->rqflags & URQ_REQUEST)) 2098 panic("uhci_device_ctrl_transfer: not a request"); 2099 #endif 2100 2101 err = uhci_device_request(xfer); 2102 if (err) 2103 return (err); 2104 2105 if (sc->sc_bus.use_polling) 2106 uhci_waitintr(sc, xfer); 2107 return (USBD_IN_PROGRESS); 2108 } 2109 2110 usbd_status 2111 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2112 { 2113 usbd_status err; 2114 2115 /* Insert last in queue. */ 2116 err = usb_insert_transfer(xfer); 2117 if (err) 2118 return (err); 2119 2120 /* 2121 * Pipe isn't running (otherwise err would be USBD_INPROG), 2122 * so start it first. 2123 */ 2124 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2125 } 2126 2127 usbd_status 2128 uhci_device_intr_start(usbd_xfer_handle xfer) 2129 { 2130 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2131 usbd_device_handle dev = upipe->pipe.device; 2132 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2133 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2134 uhci_soft_td_t *data, *dataend; 2135 uhci_soft_qh_t *sqh; 2136 usbd_status err; 2137 int isread, endpt; 2138 int i, s; 2139 2140 if (sc->sc_dying) 2141 return (USBD_IOERROR); 2142 2143 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2144 xfer, xfer->length, xfer->flags)); 2145 2146 #ifdef DIAGNOSTIC 2147 if (xfer->rqflags & URQ_REQUEST) 2148 panic("uhci_device_intr_transfer: a request"); 2149 #endif 2150 2151 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2152 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2153 2154 upipe->u.intr.isread = isread; 2155 2156 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2157 xfer->flags, &xfer->dmabuf, &data, 2158 &dataend); 2159 if (err) 2160 return (err); 2161 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2162 2163 #ifdef UHCI_DEBUG 2164 if (uhcidebug > 10) { 2165 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2166 uhci_dump_tds(data); 2167 uhci_dump_qh(upipe->u.intr.qhs[0]); 2168 } 2169 #endif 2170 2171 s = splusb(); 2172 /* Set up interrupt info. */ 2173 ii->xfer = xfer; 2174 ii->stdstart = data; 2175 ii->stdend = dataend; 2176 #ifdef DIAGNOSTIC 2177 if (!ii->isdone) { 2178 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2179 } 2180 ii->isdone = 0; 2181 #endif 2182 2183 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2184 upipe->u.intr.qhs[0])); 2185 for (i = 0; i < upipe->u.intr.npoll; i++) { 2186 sqh = upipe->u.intr.qhs[i]; 2187 sqh->elink = data; 2188 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2189 } 2190 uhci_add_intr_info(sc, ii); 2191 xfer->status = USBD_IN_PROGRESS; 2192 splx(s); 2193 2194 #ifdef UHCI_DEBUG 2195 if (uhcidebug > 10) { 2196 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2197 uhci_dump_tds(data); 2198 uhci_dump_qh(upipe->u.intr.qhs[0]); 2199 } 2200 #endif 2201 2202 return (USBD_IN_PROGRESS); 2203 } 2204 2205 /* Abort a device control request. */ 2206 void 2207 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2208 { 2209 DPRINTF(("uhci_device_ctrl_abort:\n")); 2210 uhci_abort_xfer(xfer, USBD_CANCELLED); 2211 } 2212 2213 /* Close a device control pipe. */ 2214 void 2215 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2216 { 2217 } 2218 2219 /* Abort a device interrupt request. */ 2220 void 2221 uhci_device_intr_abort(usbd_xfer_handle xfer) 2222 { 2223 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2224 if (xfer->pipe->intrxfer == xfer) { 2225 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2226 xfer->pipe->intrxfer = NULL; 2227 } 2228 uhci_abort_xfer(xfer, USBD_CANCELLED); 2229 } 2230 2231 /* Close a device interrupt pipe. */ 2232 void 2233 uhci_device_intr_close(usbd_pipe_handle pipe) 2234 { 2235 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2236 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2237 int i, npoll; 2238 int s; 2239 2240 /* Unlink descriptors from controller data structures. */ 2241 npoll = upipe->u.intr.npoll; 2242 s = splusb(); 2243 for (i = 0; i < npoll; i++) 2244 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2245 splx(s); 2246 2247 /* 2248 * We now have to wait for any activity on the physical 2249 * descriptors to stop. 2250 */ 2251 usb_delay_ms(&sc->sc_bus, 2); 2252 2253 for(i = 0; i < npoll; i++) 2254 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2255 free(upipe->u.intr.qhs, M_USBHC); 2256 2257 /* XXX free other resources */ 2258 } 2259 2260 usbd_status 2261 uhci_device_request(usbd_xfer_handle xfer) 2262 { 2263 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2264 usb_device_request_t *req = &xfer->request; 2265 usbd_device_handle dev = upipe->pipe.device; 2266 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2267 int addr = dev->address; 2268 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2269 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2270 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2271 uhci_soft_qh_t *sqh; 2272 int len; 2273 u_int32_t ls; 2274 usbd_status err; 2275 int isread; 2276 int s; 2277 2278 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2279 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2280 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2281 UGETW(req->wIndex), UGETW(req->wLength), 2282 addr, endpt)); 2283 2284 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2285 isread = req->bmRequestType & UT_READ; 2286 len = UGETW(req->wLength); 2287 2288 setup = upipe->u.ctl.setup; 2289 stat = upipe->u.ctl.stat; 2290 sqh = upipe->u.ctl.sqh; 2291 2292 /* Set up data transaction */ 2293 if (len != 0) { 2294 upipe->nexttoggle = 1; 2295 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2296 &xfer->dmabuf, &data, &dataend); 2297 if (err) 2298 return (err); 2299 next = data; 2300 dataend->link.std = stat; 2301 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2302 } else { 2303 next = stat; 2304 } 2305 upipe->u.ctl.length = len; 2306 2307 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2308 2309 setup->link.std = next; 2310 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2311 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2312 UHCI_TD_ACTIVE); 2313 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2314 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2315 2316 stat->link.std = NULL; 2317 stat->td.td_link = htole32(UHCI_PTR_T); 2318 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2319 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2320 stat->td.td_token = 2321 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2322 UHCI_TD_IN (0, endpt, addr, 1)); 2323 stat->td.td_buffer = htole32(0); 2324 2325 #ifdef UHCI_DEBUG 2326 if (uhcidebug > 10) { 2327 DPRINTF(("uhci_device_request: before transfer\n")); 2328 uhci_dump_tds(setup); 2329 } 2330 #endif 2331 2332 /* Set up interrupt info. */ 2333 ii->xfer = xfer; 2334 ii->stdstart = setup; 2335 ii->stdend = stat; 2336 #ifdef DIAGNOSTIC 2337 if (!ii->isdone) { 2338 printf("uhci_device_request: not done, ii=%p\n", ii); 2339 } 2340 ii->isdone = 0; 2341 #endif 2342 2343 sqh->elink = setup; 2344 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2345 2346 s = splusb(); 2347 if (dev->speed == USB_SPEED_LOW) 2348 uhci_add_ls_ctrl(sc, sqh); 2349 else 2350 uhci_add_hs_ctrl(sc, sqh); 2351 uhci_add_intr_info(sc, ii); 2352 #ifdef UHCI_DEBUG 2353 if (uhcidebug > 12) { 2354 uhci_soft_td_t *std; 2355 uhci_soft_qh_t *xqh; 2356 uhci_soft_qh_t *sxqh; 2357 int maxqh = 0; 2358 uhci_physaddr_t link; 2359 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2360 for (std = sc->sc_vframes[0].htd, link = 0; 2361 (link & UHCI_PTR_QH) == 0; 2362 std = std->link.std) { 2363 link = le32toh(std->td.td_link); 2364 uhci_dump_td(std); 2365 } 2366 sxqh = (uhci_soft_qh_t *)std; 2367 uhci_dump_qh(sxqh); 2368 for (xqh = sxqh; 2369 xqh != NULL; 2370 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2371 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2372 uhci_dump_qh(xqh); 2373 } 2374 DPRINTF(("Enqueued QH:\n")); 2375 uhci_dump_qh(sqh); 2376 uhci_dump_tds(sqh->elink); 2377 } 2378 #endif 2379 if (xfer->timeout && !sc->sc_bus.use_polling) { 2380 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2381 uhci_timeout, ii); 2382 } 2383 xfer->status = USBD_IN_PROGRESS; 2384 splx(s); 2385 2386 return (USBD_NORMAL_COMPLETION); 2387 } 2388 2389 usbd_status 2390 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2391 { 2392 usbd_status err; 2393 2394 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2395 2396 /* Put it on our queue, */ 2397 err = usb_insert_transfer(xfer); 2398 2399 /* bail out on error, */ 2400 if (err && err != USBD_IN_PROGRESS) 2401 return (err); 2402 2403 /* XXX should check inuse here */ 2404 2405 /* insert into schedule, */ 2406 uhci_device_isoc_enter(xfer); 2407 2408 /* and start if the pipe wasn't running */ 2409 if (!err) 2410 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2411 2412 return (err); 2413 } 2414 2415 void 2416 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2417 { 2418 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2419 usbd_device_handle dev = upipe->pipe.device; 2420 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2421 struct iso *iso = &upipe->u.iso; 2422 uhci_soft_td_t *std; 2423 u_int32_t buf, len, status; 2424 int s, i, next, nframes; 2425 2426 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2427 "nframes=%d\n", 2428 iso->inuse, iso->next, xfer, xfer->nframes)); 2429 2430 if (sc->sc_dying) 2431 return; 2432 2433 if (xfer->status == USBD_IN_PROGRESS) { 2434 /* This request has already been entered into the frame list */ 2435 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2436 /* XXX */ 2437 } 2438 2439 #ifdef DIAGNOSTIC 2440 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2441 printf("uhci_device_isoc_enter: overflow!\n"); 2442 #endif 2443 2444 next = iso->next; 2445 if (next == -1) { 2446 /* Not in use yet, schedule it a few frames ahead. */ 2447 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2448 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2449 } 2450 2451 xfer->status = USBD_IN_PROGRESS; 2452 UXFER(xfer)->curframe = next; 2453 2454 buf = DMAADDR(&xfer->dmabuf, 0); 2455 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2456 UHCI_TD_ACTIVE | 2457 UHCI_TD_IOS); 2458 nframes = xfer->nframes; 2459 s = splusb(); 2460 for (i = 0; i < nframes; i++) { 2461 std = iso->stds[next]; 2462 if (++next >= UHCI_VFRAMELIST_COUNT) 2463 next = 0; 2464 len = xfer->frlengths[i]; 2465 std->td.td_buffer = htole32(buf); 2466 if (i == nframes - 1) 2467 status |= UHCI_TD_IOC; 2468 std->td.td_status = htole32(status); 2469 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2470 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2471 #ifdef UHCI_DEBUG 2472 if (uhcidebug > 5) { 2473 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2474 uhci_dump_td(std); 2475 } 2476 #endif 2477 buf += len; 2478 } 2479 iso->next = next; 2480 iso->inuse += xfer->nframes; 2481 2482 splx(s); 2483 } 2484 2485 usbd_status 2486 uhci_device_isoc_start(usbd_xfer_handle xfer) 2487 { 2488 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2489 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2490 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2491 uhci_soft_td_t *end; 2492 int s, i; 2493 2494 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2495 2496 if (sc->sc_dying) 2497 return (USBD_IOERROR); 2498 2499 #ifdef DIAGNOSTIC 2500 if (xfer->status != USBD_IN_PROGRESS) 2501 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2502 #endif 2503 2504 /* Find the last TD */ 2505 i = UXFER(xfer)->curframe + xfer->nframes; 2506 if (i >= UHCI_VFRAMELIST_COUNT) 2507 i -= UHCI_VFRAMELIST_COUNT; 2508 end = upipe->u.iso.stds[i]; 2509 2510 #ifdef DIAGNOSTIC 2511 if (end == NULL) { 2512 printf("uhci_device_isoc_start: end == NULL\n"); 2513 return (USBD_INVAL); 2514 } 2515 #endif 2516 2517 s = splusb(); 2518 2519 /* Set up interrupt info. */ 2520 ii->xfer = xfer; 2521 ii->stdstart = end; 2522 ii->stdend = end; 2523 #ifdef DIAGNOSTIC 2524 if (!ii->isdone) 2525 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2526 ii->isdone = 0; 2527 #endif 2528 uhci_add_intr_info(sc, ii); 2529 2530 splx(s); 2531 2532 return (USBD_IN_PROGRESS); 2533 } 2534 2535 void 2536 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2537 { 2538 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2539 uhci_soft_td_t **stds = upipe->u.iso.stds; 2540 uhci_soft_td_t *std; 2541 int i, n, s, nframes, maxlen, len; 2542 2543 s = splusb(); 2544 2545 /* Transfer is already done. */ 2546 if (xfer->status != USBD_NOT_STARTED && 2547 xfer->status != USBD_IN_PROGRESS) { 2548 splx(s); 2549 return; 2550 } 2551 2552 /* Give xfer the requested abort code. */ 2553 xfer->status = USBD_CANCELLED; 2554 2555 /* make hardware ignore it, */ 2556 nframes = xfer->nframes; 2557 n = UXFER(xfer)->curframe; 2558 maxlen = 0; 2559 for (i = 0; i < nframes; i++) { 2560 std = stds[n]; 2561 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2562 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2563 if (len > maxlen) 2564 maxlen = len; 2565 if (++n >= UHCI_VFRAMELIST_COUNT) 2566 n = 0; 2567 } 2568 2569 /* and wait until we are sure the hardware has finished. */ 2570 delay(maxlen); 2571 2572 #ifdef DIAGNOSTIC 2573 UXFER(xfer)->iinfo.isdone = 1; 2574 #endif 2575 /* Run callback and remove from interrupt list. */ 2576 usb_transfer_complete(xfer); 2577 2578 splx(s); 2579 } 2580 2581 void 2582 uhci_device_isoc_close(usbd_pipe_handle pipe) 2583 { 2584 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2585 usbd_device_handle dev = upipe->pipe.device; 2586 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2587 uhci_soft_td_t *std, *vstd; 2588 struct iso *iso; 2589 int i, s; 2590 2591 /* 2592 * Make sure all TDs are marked as inactive. 2593 * Wait for completion. 2594 * Unschedule. 2595 * Deallocate. 2596 */ 2597 iso = &upipe->u.iso; 2598 2599 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2600 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2601 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2602 2603 s = splusb(); 2604 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2605 std = iso->stds[i]; 2606 for (vstd = sc->sc_vframes[i].htd; 2607 vstd != NULL && vstd->link.std != std; 2608 vstd = vstd->link.std) 2609 ; 2610 if (vstd == NULL) { 2611 /*panic*/ 2612 printf("uhci_device_isoc_close: %p not found\n", std); 2613 splx(s); 2614 return; 2615 } 2616 vstd->link = std->link; 2617 vstd->td.td_link = std->td.td_link; 2618 uhci_free_std(sc, std); 2619 } 2620 splx(s); 2621 2622 free(iso->stds, M_USBHC); 2623 } 2624 2625 usbd_status 2626 uhci_setup_isoc(usbd_pipe_handle pipe) 2627 { 2628 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2629 usbd_device_handle dev = upipe->pipe.device; 2630 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2631 int addr = upipe->pipe.device->address; 2632 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2633 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2634 uhci_soft_td_t *std, *vstd; 2635 u_int32_t token; 2636 struct iso *iso; 2637 int i, s; 2638 2639 iso = &upipe->u.iso; 2640 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2641 M_USBHC, M_WAITOK); 2642 2643 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2644 UHCI_TD_OUT(0, endpt, addr, 0); 2645 2646 /* Allocate the TDs and mark as inactive; */ 2647 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2648 std = uhci_alloc_std(sc); 2649 if (std == 0) 2650 goto bad; 2651 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2652 std->td.td_token = htole32(token); 2653 iso->stds[i] = std; 2654 } 2655 2656 /* Insert TDs into schedule. */ 2657 s = splusb(); 2658 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2659 std = iso->stds[i]; 2660 vstd = sc->sc_vframes[i].htd; 2661 std->link = vstd->link; 2662 std->td.td_link = vstd->td.td_link; 2663 vstd->link.std = std; 2664 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2665 } 2666 splx(s); 2667 2668 iso->next = -1; 2669 iso->inuse = 0; 2670 2671 return (USBD_NORMAL_COMPLETION); 2672 2673 bad: 2674 while (--i >= 0) 2675 uhci_free_std(sc, iso->stds[i]); 2676 free(iso->stds, M_USBHC); 2677 return (USBD_NOMEM); 2678 } 2679 2680 void 2681 uhci_device_isoc_done(usbd_xfer_handle xfer) 2682 { 2683 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2684 2685 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2686 xfer->actlen, xfer->busy_free)); 2687 2688 if (ii->xfer != xfer) 2689 /* Not on interrupt list, ignore it. */ 2690 return; 2691 2692 if (!uhci_active_intr_info(ii)) 2693 return; 2694 2695 #ifdef DIAGNOSTIC 2696 if (ii->stdend == NULL) { 2697 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2698 #ifdef UHCI_DEBUG 2699 uhci_dump_ii(ii); 2700 #endif 2701 return; 2702 } 2703 #endif 2704 2705 /* Turn off the interrupt since it is active even if the TD is not. */ 2706 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2707 2708 uhci_del_intr_info(ii); /* remove from active list */ 2709 } 2710 2711 void 2712 uhci_device_intr_done(usbd_xfer_handle xfer) 2713 { 2714 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2715 uhci_softc_t *sc = ii->sc; 2716 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2717 uhci_soft_qh_t *sqh; 2718 int i, npoll; 2719 2720 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2721 2722 npoll = upipe->u.intr.npoll; 2723 for(i = 0; i < npoll; i++) { 2724 sqh = upipe->u.intr.qhs[i]; 2725 sqh->elink = NULL; 2726 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2727 } 2728 uhci_free_std_chain(sc, ii->stdstart, NULL); 2729 2730 /* XXX Wasteful. */ 2731 if (xfer->pipe->repeat) { 2732 uhci_soft_td_t *data, *dataend; 2733 2734 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2735 2736 /* This alloc cannot fail since we freed the chain above. */ 2737 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2738 &xfer->dmabuf, &data, &dataend); 2739 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2740 2741 #ifdef UHCI_DEBUG 2742 if (uhcidebug > 10) { 2743 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2744 uhci_dump_tds(data); 2745 uhci_dump_qh(upipe->u.intr.qhs[0]); 2746 } 2747 #endif 2748 2749 ii->stdstart = data; 2750 ii->stdend = dataend; 2751 #ifdef DIAGNOSTIC 2752 if (!ii->isdone) { 2753 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2754 } 2755 ii->isdone = 0; 2756 #endif 2757 for (i = 0; i < npoll; i++) { 2758 sqh = upipe->u.intr.qhs[i]; 2759 sqh->elink = data; 2760 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2761 } 2762 xfer->status = USBD_IN_PROGRESS; 2763 /* The ii is already on the examined list, just leave it. */ 2764 } else { 2765 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2766 if (uhci_active_intr_info(ii)) 2767 uhci_del_intr_info(ii); 2768 } 2769 } 2770 2771 /* Deallocate request data structures */ 2772 void 2773 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2774 { 2775 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2776 uhci_softc_t *sc = ii->sc; 2777 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2778 2779 #ifdef DIAGNOSTIC 2780 if (!(xfer->rqflags & URQ_REQUEST)) 2781 panic("uhci_device_ctrl_done: not a request"); 2782 #endif 2783 2784 if (!uhci_active_intr_info(ii)) 2785 return; 2786 2787 uhci_del_intr_info(ii); /* remove from active list */ 2788 2789 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2790 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2791 else 2792 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2793 2794 if (upipe->u.ctl.length != 0) 2795 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2796 2797 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2798 } 2799 2800 /* Deallocate request data structures */ 2801 void 2802 uhci_device_bulk_done(usbd_xfer_handle xfer) 2803 { 2804 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2805 uhci_softc_t *sc = ii->sc; 2806 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2807 2808 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2809 xfer, ii, sc, upipe)); 2810 2811 if (!uhci_active_intr_info(ii)) 2812 return; 2813 2814 uhci_del_intr_info(ii); /* remove from active list */ 2815 2816 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2817 2818 uhci_free_std_chain(sc, ii->stdstart, NULL); 2819 2820 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2821 } 2822 2823 /* Add interrupt QH, called with vflock. */ 2824 void 2825 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2826 { 2827 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2828 uhci_soft_qh_t *eqh; 2829 2830 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2831 2832 eqh = vf->eqh; 2833 sqh->hlink = eqh->hlink; 2834 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2835 eqh->hlink = sqh; 2836 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2837 vf->eqh = sqh; 2838 vf->bandwidth++; 2839 } 2840 2841 /* Remove interrupt QH. */ 2842 void 2843 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2844 { 2845 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2846 uhci_soft_qh_t *pqh; 2847 2848 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2849 2850 /* See comment in uhci_remove_ctrl() */ 2851 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2852 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2853 delay(UHCI_QH_REMOVE_DELAY); 2854 } 2855 2856 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2857 pqh->hlink = sqh->hlink; 2858 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2859 delay(UHCI_QH_REMOVE_DELAY); 2860 if (vf->eqh == sqh) 2861 vf->eqh = pqh; 2862 vf->bandwidth--; 2863 } 2864 2865 usbd_status 2866 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2867 { 2868 uhci_soft_qh_t *sqh; 2869 int i, npoll, s; 2870 u_int bestbw, bw, bestoffs, offs; 2871 2872 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2873 if (ival == 0) { 2874 printf("uhci_device_setintr: 0 interval\n"); 2875 return (USBD_INVAL); 2876 } 2877 2878 if (ival > UHCI_VFRAMELIST_COUNT) 2879 ival = UHCI_VFRAMELIST_COUNT; 2880 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2881 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2882 2883 upipe->u.intr.npoll = npoll; 2884 upipe->u.intr.qhs = 2885 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2886 2887 /* 2888 * Figure out which offset in the schedule that has most 2889 * bandwidth left over. 2890 */ 2891 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2892 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2893 for (bw = i = 0; i < npoll; i++) 2894 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2895 if (bw < bestbw) { 2896 bestbw = bw; 2897 bestoffs = offs; 2898 } 2899 } 2900 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2901 2902 for(i = 0; i < npoll; i++) { 2903 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2904 sqh->elink = NULL; 2905 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2906 sqh->pos = MOD(i * ival + bestoffs); 2907 } 2908 #undef MOD 2909 2910 s = splusb(); 2911 /* Enter QHs into the controller data structures. */ 2912 for(i = 0; i < npoll; i++) 2913 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2914 splx(s); 2915 2916 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2917 return (USBD_NORMAL_COMPLETION); 2918 } 2919 2920 /* Open a new pipe. */ 2921 usbd_status 2922 uhci_open(usbd_pipe_handle pipe) 2923 { 2924 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2925 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2926 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2927 usbd_status err; 2928 int ival; 2929 2930 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2931 pipe, pipe->device->address, 2932 ed->bEndpointAddress, sc->sc_addr)); 2933 2934 upipe->aborting = 0; 2935 upipe->nexttoggle = 0; 2936 2937 if (pipe->device->address == sc->sc_addr) { 2938 switch (ed->bEndpointAddress) { 2939 case USB_CONTROL_ENDPOINT: 2940 pipe->methods = &uhci_root_ctrl_methods; 2941 break; 2942 case UE_DIR_IN | UHCI_INTR_ENDPT: 2943 pipe->methods = &uhci_root_intr_methods; 2944 break; 2945 default: 2946 return (USBD_INVAL); 2947 } 2948 } else { 2949 switch (ed->bmAttributes & UE_XFERTYPE) { 2950 case UE_CONTROL: 2951 pipe->methods = &uhci_device_ctrl_methods; 2952 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2953 if (upipe->u.ctl.sqh == NULL) 2954 goto bad; 2955 upipe->u.ctl.setup = uhci_alloc_std(sc); 2956 if (upipe->u.ctl.setup == NULL) { 2957 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2958 goto bad; 2959 } 2960 upipe->u.ctl.stat = uhci_alloc_std(sc); 2961 if (upipe->u.ctl.stat == NULL) { 2962 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2963 uhci_free_std(sc, upipe->u.ctl.setup); 2964 goto bad; 2965 } 2966 err = usb_allocmem(&sc->sc_bus, 2967 sizeof(usb_device_request_t), 2968 0, &upipe->u.ctl.reqdma); 2969 if (err) { 2970 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2971 uhci_free_std(sc, upipe->u.ctl.setup); 2972 uhci_free_std(sc, upipe->u.ctl.stat); 2973 goto bad; 2974 } 2975 break; 2976 case UE_INTERRUPT: 2977 pipe->methods = &uhci_device_intr_methods; 2978 ival = pipe->interval; 2979 if (ival == USBD_DEFAULT_INTERVAL) 2980 ival = ed->bInterval; 2981 return (uhci_device_setintr(sc, upipe, ival)); 2982 case UE_ISOCHRONOUS: 2983 pipe->methods = &uhci_device_isoc_methods; 2984 return (uhci_setup_isoc(pipe)); 2985 case UE_BULK: 2986 pipe->methods = &uhci_device_bulk_methods; 2987 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2988 if (upipe->u.bulk.sqh == NULL) 2989 goto bad; 2990 break; 2991 } 2992 } 2993 return (USBD_NORMAL_COMPLETION); 2994 2995 bad: 2996 return (USBD_NOMEM); 2997 } 2998 2999 /* 3000 * Data structures and routines to emulate the root hub. 3001 */ 3002 usb_device_descriptor_t uhci_devd = { 3003 USB_DEVICE_DESCRIPTOR_SIZE, 3004 UDESC_DEVICE, /* type */ 3005 {0x00, 0x01}, /* USB version */ 3006 UDCLASS_HUB, /* class */ 3007 UDSUBCLASS_HUB, /* subclass */ 3008 UDPROTO_FSHUB, /* protocol */ 3009 64, /* max packet */ 3010 {0},{0},{0x00,0x01}, /* device id */ 3011 1,2,0, /* string indicies */ 3012 1 /* # of configurations */ 3013 }; 3014 3015 const usb_config_descriptor_t uhci_confd = { 3016 USB_CONFIG_DESCRIPTOR_SIZE, 3017 UDESC_CONFIG, 3018 {USB_CONFIG_DESCRIPTOR_SIZE + 3019 USB_INTERFACE_DESCRIPTOR_SIZE + 3020 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3021 1, 3022 1, 3023 0, 3024 UC_ATTR_MBO | UC_SELF_POWERED, 3025 0 /* max power */ 3026 }; 3027 3028 const usb_interface_descriptor_t uhci_ifcd = { 3029 USB_INTERFACE_DESCRIPTOR_SIZE, 3030 UDESC_INTERFACE, 3031 0, 3032 0, 3033 1, 3034 UICLASS_HUB, 3035 UISUBCLASS_HUB, 3036 UIPROTO_FSHUB, 3037 0 3038 }; 3039 3040 const usb_endpoint_descriptor_t uhci_endpd = { 3041 USB_ENDPOINT_DESCRIPTOR_SIZE, 3042 UDESC_ENDPOINT, 3043 UE_DIR_IN | UHCI_INTR_ENDPT, 3044 UE_INTERRUPT, 3045 {8}, 3046 255 3047 }; 3048 3049 const usb_hub_descriptor_t uhci_hubd_piix = { 3050 USB_HUB_DESCRIPTOR_SIZE, 3051 UDESC_HUB, 3052 2, 3053 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3054 50, /* power on to power good */ 3055 0, 3056 { 0x00 }, /* both ports are removable */ 3057 { 0 }, 3058 }; 3059 3060 int 3061 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3062 { 3063 int i; 3064 3065 if (l == 0) 3066 return (0); 3067 p->bLength = 2 * strlen(s) + 2; 3068 if (l == 1) 3069 return (1); 3070 p->bDescriptorType = UDESC_STRING; 3071 l -= 2; 3072 for (i = 0; s[i] && l > 1; i++, l -= 2) 3073 USETW2(p->bString[i], 0, s[i]); 3074 return (2*i+2); 3075 } 3076 3077 /* 3078 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3079 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3080 * should not be used by the USB subsystem. As we cannot issue a 3081 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3082 * will be enabled as part of the reset. 3083 * 3084 * On the VT83C572, the port cannot be successfully enabled until the 3085 * outstanding "port enable change" and "connection status change" 3086 * events have been reset. 3087 */ 3088 Static usbd_status 3089 uhci_portreset(uhci_softc_t *sc, int index) 3090 { 3091 int lim, port, x; 3092 3093 if (index == 1) 3094 port = UHCI_PORTSC1; 3095 else if (index == 2) 3096 port = UHCI_PORTSC2; 3097 else 3098 return (USBD_IOERROR); 3099 3100 x = URWMASK(UREAD2(sc, port)); 3101 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3102 3103 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3104 3105 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3106 index, UREAD2(sc, port))); 3107 3108 x = URWMASK(UREAD2(sc, port)); 3109 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3110 3111 delay(100); 3112 3113 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3114 index, UREAD2(sc, port))); 3115 3116 x = URWMASK(UREAD2(sc, port)); 3117 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3118 3119 for (lim = 10; --lim > 0;) { 3120 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3121 3122 x = UREAD2(sc, port); 3123 3124 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3125 index, lim, x)); 3126 3127 if (!(x & UHCI_PORTSC_CCS)) { 3128 /* 3129 * No device is connected (or was disconnected 3130 * during reset). Consider the port reset. 3131 * The delay must be long enough to ensure on 3132 * the initial iteration that the device 3133 * connection will have been registered. 50ms 3134 * appears to be sufficient, but 20ms is not. 3135 */ 3136 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3137 index, lim)); 3138 break; 3139 } 3140 3141 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3142 /* 3143 * Port enabled changed and/or connection 3144 * status changed were set. Reset either or 3145 * both raised flags (by writing a 1 to that 3146 * bit), and wait again for state to settle. 3147 */ 3148 UWRITE2(sc, port, URWMASK(x) | 3149 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3150 continue; 3151 } 3152 3153 if (x & UHCI_PORTSC_PE) 3154 /* Port is enabled */ 3155 break; 3156 3157 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3158 } 3159 3160 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3161 index, UREAD2(sc, port))); 3162 3163 if (lim <= 0) { 3164 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3165 return (USBD_TIMEOUT); 3166 } 3167 3168 sc->sc_isreset = 1; 3169 return (USBD_NORMAL_COMPLETION); 3170 } 3171 3172 /* 3173 * Simulate a hardware hub by handling all the necessary requests. 3174 */ 3175 usbd_status 3176 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3177 { 3178 usbd_status err; 3179 3180 /* Insert last in queue. */ 3181 err = usb_insert_transfer(xfer); 3182 if (err) 3183 return (err); 3184 3185 /* 3186 * Pipe isn't running (otherwise err would be USBD_INPROG), 3187 * so start it first. 3188 */ 3189 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3190 } 3191 3192 usbd_status 3193 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3194 { 3195 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3196 usb_device_request_t *req; 3197 void *buf = NULL; 3198 int port, x; 3199 int s, len, value, index, status, change, l, totlen = 0; 3200 usb_port_status_t ps; 3201 usbd_status err; 3202 3203 if (sc->sc_dying) 3204 return (USBD_IOERROR); 3205 3206 #ifdef DIAGNOSTIC 3207 if (!(xfer->rqflags & URQ_REQUEST)) 3208 panic("uhci_root_ctrl_transfer: not a request"); 3209 #endif 3210 req = &xfer->request; 3211 3212 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3213 req->bmRequestType, req->bRequest)); 3214 3215 len = UGETW(req->wLength); 3216 value = UGETW(req->wValue); 3217 index = UGETW(req->wIndex); 3218 3219 if (len != 0) 3220 buf = KERNADDR(&xfer->dmabuf, 0); 3221 3222 #define C(x,y) ((x) | ((y) << 8)) 3223 switch(C(req->bRequest, req->bmRequestType)) { 3224 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3225 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3226 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3227 /* 3228 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3229 * for the integrated root hub. 3230 */ 3231 break; 3232 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3233 if (len > 0) { 3234 *(u_int8_t *)buf = sc->sc_conf; 3235 totlen = 1; 3236 } 3237 break; 3238 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3239 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3240 if (len == 0) 3241 break; 3242 switch(value >> 8) { 3243 case UDESC_DEVICE: 3244 if ((value & 0xff) != 0) { 3245 err = USBD_IOERROR; 3246 goto ret; 3247 } 3248 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3249 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3250 memcpy(buf, &uhci_devd, l); 3251 break; 3252 case UDESC_CONFIG: 3253 if ((value & 0xff) != 0) { 3254 err = USBD_IOERROR; 3255 goto ret; 3256 } 3257 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3258 memcpy(buf, &uhci_confd, l); 3259 buf = (char *)buf + l; 3260 len -= l; 3261 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3262 totlen += l; 3263 memcpy(buf, &uhci_ifcd, l); 3264 buf = (char *)buf + l; 3265 len -= l; 3266 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3267 totlen += l; 3268 memcpy(buf, &uhci_endpd, l); 3269 break; 3270 case UDESC_STRING: 3271 *(u_int8_t *)buf = 0; 3272 totlen = 1; 3273 switch (value & 0xff) { 3274 case 0: /* Language table */ 3275 if (len > 0) 3276 *(u_int8_t *)buf = 4; 3277 if (len >= 4) { 3278 USETW(((usb_string_descriptor_t *)buf)->bString[0], 0x0409); 3279 totlen = 4; 3280 } 3281 break; 3282 case 1: /* Vendor */ 3283 totlen = uhci_str(buf, len, sc->sc_vendor); 3284 break; 3285 case 2: /* Product */ 3286 totlen = uhci_str(buf, len, "UHCI root hub"); 3287 break; 3288 } 3289 break; 3290 default: 3291 err = USBD_IOERROR; 3292 goto ret; 3293 } 3294 break; 3295 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3296 if (len > 0) { 3297 *(u_int8_t *)buf = 0; 3298 totlen = 1; 3299 } 3300 break; 3301 case C(UR_GET_STATUS, UT_READ_DEVICE): 3302 if (len > 1) { 3303 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3304 totlen = 2; 3305 } 3306 break; 3307 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3308 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3309 if (len > 1) { 3310 USETW(((usb_status_t *)buf)->wStatus, 0); 3311 totlen = 2; 3312 } 3313 break; 3314 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3315 if (value >= USB_MAX_DEVICES) { 3316 err = USBD_IOERROR; 3317 goto ret; 3318 } 3319 sc->sc_addr = value; 3320 break; 3321 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3322 if (value != 0 && value != 1) { 3323 err = USBD_IOERROR; 3324 goto ret; 3325 } 3326 sc->sc_conf = value; 3327 break; 3328 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3329 break; 3330 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3331 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3332 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3333 err = USBD_IOERROR; 3334 goto ret; 3335 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3336 break; 3337 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3338 break; 3339 /* Hub requests */ 3340 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3341 break; 3342 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3343 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3344 "port=%d feature=%d\n", 3345 index, value)); 3346 if (index == 1) 3347 port = UHCI_PORTSC1; 3348 else if (index == 2) 3349 port = UHCI_PORTSC2; 3350 else { 3351 err = USBD_IOERROR; 3352 goto ret; 3353 } 3354 switch(value) { 3355 case UHF_PORT_ENABLE: 3356 x = URWMASK(UREAD2(sc, port)); 3357 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3358 break; 3359 case UHF_PORT_SUSPEND: 3360 x = URWMASK(UREAD2(sc, port)); 3361 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3362 break; 3363 case UHF_PORT_RESET: 3364 x = URWMASK(UREAD2(sc, port)); 3365 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3366 break; 3367 case UHF_C_PORT_CONNECTION: 3368 x = URWMASK(UREAD2(sc, port)); 3369 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3370 break; 3371 case UHF_C_PORT_ENABLE: 3372 x = URWMASK(UREAD2(sc, port)); 3373 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3374 break; 3375 case UHF_C_PORT_OVER_CURRENT: 3376 x = URWMASK(UREAD2(sc, port)); 3377 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3378 break; 3379 case UHF_C_PORT_RESET: 3380 sc->sc_isreset = 0; 3381 err = USBD_NORMAL_COMPLETION; 3382 goto ret; 3383 case UHF_PORT_CONNECTION: 3384 case UHF_PORT_OVER_CURRENT: 3385 case UHF_PORT_POWER: 3386 case UHF_PORT_LOW_SPEED: 3387 case UHF_C_PORT_SUSPEND: 3388 default: 3389 err = USBD_IOERROR; 3390 goto ret; 3391 } 3392 break; 3393 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3394 if (index == 1) 3395 port = UHCI_PORTSC1; 3396 else if (index == 2) 3397 port = UHCI_PORTSC2; 3398 else { 3399 err = USBD_IOERROR; 3400 goto ret; 3401 } 3402 if (len > 0) { 3403 *(u_int8_t *)buf = 3404 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3405 UHCI_PORTSC_LS_SHIFT; 3406 totlen = 1; 3407 } 3408 break; 3409 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3410 if (len == 0) 3411 break; 3412 if ((value & 0xff) != 0) { 3413 err = USBD_IOERROR; 3414 goto ret; 3415 } 3416 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3417 totlen = l; 3418 memcpy(buf, &uhci_hubd_piix, l); 3419 break; 3420 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3421 if (len != 4) { 3422 err = USBD_IOERROR; 3423 goto ret; 3424 } 3425 memset(buf, 0, len); 3426 totlen = len; 3427 break; 3428 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3429 if (index == 1) 3430 port = UHCI_PORTSC1; 3431 else if (index == 2) 3432 port = UHCI_PORTSC2; 3433 else { 3434 err = USBD_IOERROR; 3435 goto ret; 3436 } 3437 if (len != 4) { 3438 err = USBD_IOERROR; 3439 goto ret; 3440 } 3441 x = UREAD2(sc, port); 3442 status = change = 0; 3443 if (x & UHCI_PORTSC_CCS) 3444 status |= UPS_CURRENT_CONNECT_STATUS; 3445 if (x & UHCI_PORTSC_CSC) 3446 change |= UPS_C_CONNECT_STATUS; 3447 if (x & UHCI_PORTSC_PE) 3448 status |= UPS_PORT_ENABLED; 3449 if (x & UHCI_PORTSC_POEDC) 3450 change |= UPS_C_PORT_ENABLED; 3451 if (x & UHCI_PORTSC_OCI) 3452 status |= UPS_OVERCURRENT_INDICATOR; 3453 if (x & UHCI_PORTSC_OCIC) 3454 change |= UPS_C_OVERCURRENT_INDICATOR; 3455 if (x & UHCI_PORTSC_SUSP) 3456 status |= UPS_SUSPEND; 3457 if (x & UHCI_PORTSC_LSDA) 3458 status |= UPS_LOW_SPEED; 3459 status |= UPS_PORT_POWER; 3460 if (sc->sc_isreset) 3461 change |= UPS_C_PORT_RESET; 3462 USETW(ps.wPortStatus, status); 3463 USETW(ps.wPortChange, change); 3464 l = min(len, sizeof ps); 3465 memcpy(buf, &ps, l); 3466 totlen = l; 3467 break; 3468 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3469 err = USBD_IOERROR; 3470 goto ret; 3471 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3472 break; 3473 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3474 if (index == 1) 3475 port = UHCI_PORTSC1; 3476 else if (index == 2) 3477 port = UHCI_PORTSC2; 3478 else { 3479 err = USBD_IOERROR; 3480 goto ret; 3481 } 3482 switch(value) { 3483 case UHF_PORT_ENABLE: 3484 x = URWMASK(UREAD2(sc, port)); 3485 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3486 break; 3487 case UHF_PORT_SUSPEND: 3488 x = URWMASK(UREAD2(sc, port)); 3489 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3490 break; 3491 case UHF_PORT_RESET: 3492 err = uhci_portreset(sc, index); 3493 goto ret; 3494 case UHF_PORT_POWER: 3495 /* Pretend we turned on power */ 3496 err = USBD_NORMAL_COMPLETION; 3497 goto ret; 3498 case UHF_C_PORT_CONNECTION: 3499 case UHF_C_PORT_ENABLE: 3500 case UHF_C_PORT_OVER_CURRENT: 3501 case UHF_PORT_CONNECTION: 3502 case UHF_PORT_OVER_CURRENT: 3503 case UHF_PORT_LOW_SPEED: 3504 case UHF_C_PORT_SUSPEND: 3505 case UHF_C_PORT_RESET: 3506 default: 3507 err = USBD_IOERROR; 3508 goto ret; 3509 } 3510 break; 3511 default: 3512 err = USBD_IOERROR; 3513 goto ret; 3514 } 3515 xfer->actlen = totlen; 3516 err = USBD_NORMAL_COMPLETION; 3517 ret: 3518 xfer->status = err; 3519 s = splusb(); 3520 usb_transfer_complete(xfer); 3521 splx(s); 3522 return (USBD_IN_PROGRESS); 3523 } 3524 3525 /* Abort a root control request. */ 3526 void 3527 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3528 { 3529 /* Nothing to do, all transfers are synchronous. */ 3530 } 3531 3532 /* Close the root pipe. */ 3533 void 3534 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3535 { 3536 DPRINTF(("uhci_root_ctrl_close\n")); 3537 } 3538 3539 /* Abort a root interrupt request. */ 3540 void 3541 uhci_root_intr_abort(usbd_xfer_handle xfer) 3542 { 3543 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3544 3545 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3546 sc->sc_intr_xfer = NULL; 3547 3548 if (xfer->pipe->intrxfer == xfer) { 3549 DPRINTF(("uhci_root_intr_abort: remove\n")); 3550 xfer->pipe->intrxfer = 0; 3551 } 3552 xfer->status = USBD_CANCELLED; 3553 #ifdef DIAGNOSTIC 3554 UXFER(xfer)->iinfo.isdone = 1; 3555 #endif 3556 usb_transfer_complete(xfer); 3557 } 3558 3559 usbd_status 3560 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3561 { 3562 usbd_status err; 3563 3564 /* Insert last in queue. */ 3565 err = usb_insert_transfer(xfer); 3566 if (err) 3567 return (err); 3568 3569 /* 3570 * Pipe isn't running (otherwise err would be USBD_INPROG), 3571 * start first 3572 */ 3573 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3574 } 3575 3576 /* Start a transfer on the root interrupt pipe */ 3577 usbd_status 3578 uhci_root_intr_start(usbd_xfer_handle xfer) 3579 { 3580 usbd_pipe_handle pipe = xfer->pipe; 3581 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3582 unsigned int ival; 3583 3584 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3585 xfer, xfer->length, xfer->flags)); 3586 3587 if (sc->sc_dying) 3588 return (USBD_IOERROR); 3589 3590 /* XXX temporary variable needed to avoid gcc3 warning */ 3591 ival = xfer->pipe->endpoint->edesc->bInterval; 3592 sc->sc_ival = mstohz(ival); 3593 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3594 sc->sc_intr_xfer = xfer; 3595 return (USBD_IN_PROGRESS); 3596 } 3597 3598 /* Close the root interrupt pipe. */ 3599 void 3600 uhci_root_intr_close(usbd_pipe_handle pipe) 3601 { 3602 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3603 3604 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3605 sc->sc_intr_xfer = NULL; 3606 DPRINTF(("uhci_root_intr_close\n")); 3607 } 3608
Indexes created Tue Sep 30 20:09:53 GMT 2025