uhci.c revision 1.197
1 /* $NetBSD: uhci.c,v 1.197 2006/06/19 15:44:45 gdamore 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 1.197 2006/06/19 15:44:45 gdamore Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data stored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 int isread; 149 uhci_soft_qh_t **qhs; 150 } intr; 151 /* Bulk pipe */ 152 struct { 153 uhci_soft_qh_t *sqh; 154 u_int length; 155 int isread; 156 } bulk; 157 /* Iso pipe */ 158 struct iso { 159 uhci_soft_td_t **stds; 160 int next, inuse; 161 } iso; 162 } u; 163 }; 164 165 Static void uhci_globalreset(uhci_softc_t *); 166 Static usbd_status uhci_portreset(uhci_softc_t*, int); 167 Static void uhci_reset(uhci_softc_t *); 168 Static void uhci_shutdown(void *v); 169 Static void uhci_power(int, void *); 170 Static usbd_status uhci_run(uhci_softc_t *, int run); 171 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 172 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 173 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 174 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 175 #if 0 176 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 177 uhci_intr_info_t *); 178 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 179 #endif 180 181 Static void uhci_free_std_chain(uhci_softc_t *, 182 uhci_soft_td_t *, uhci_soft_td_t *); 183 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 184 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 185 uhci_soft_td_t **, uhci_soft_td_t **); 186 Static void uhci_poll_hub(void *); 187 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 188 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 189 Static void uhci_idone(uhci_intr_info_t *); 190 191 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 192 193 Static void uhci_timeout(void *); 194 Static void uhci_timeout_task(void *); 195 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 198 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 200 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 201 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 202 Static void uhci_add_loop(uhci_softc_t *sc); 203 Static void uhci_rem_loop(uhci_softc_t *sc); 204 205 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 206 Static void uhci_device_isoc_enter(usbd_xfer_handle); 207 208 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 209 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 210 211 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 212 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 213 214 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 216 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 217 Static void uhci_device_ctrl_close(usbd_pipe_handle); 218 Static void uhci_device_ctrl_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 222 Static void uhci_device_intr_abort(usbd_xfer_handle); 223 Static void uhci_device_intr_close(usbd_pipe_handle); 224 Static void uhci_device_intr_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 228 Static void uhci_device_bulk_abort(usbd_xfer_handle); 229 Static void uhci_device_bulk_close(usbd_pipe_handle); 230 Static void uhci_device_bulk_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 233 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 234 Static void uhci_device_isoc_abort(usbd_xfer_handle); 235 Static void uhci_device_isoc_close(usbd_pipe_handle); 236 Static void uhci_device_isoc_done(usbd_xfer_handle); 237 238 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 239 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 240 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 241 Static void uhci_root_ctrl_close(usbd_pipe_handle); 242 Static void uhci_root_ctrl_done(usbd_xfer_handle); 243 244 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 245 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 246 Static void uhci_root_intr_abort(usbd_xfer_handle); 247 Static void uhci_root_intr_close(usbd_pipe_handle); 248 Static void uhci_root_intr_done(usbd_xfer_handle); 249 250 Static usbd_status uhci_open(usbd_pipe_handle); 251 Static void uhci_poll(struct usbd_bus *); 252 Static void uhci_softintr(void *); 253 254 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 255 256 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 258 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 259 struct uhci_pipe *pipe, int ival); 260 261 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 262 Static void uhci_noop(usbd_pipe_handle pipe); 263 264 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 265 uhci_soft_qh_t *); 266 267 #ifdef UHCI_DEBUG 268 Static void uhci_dump_all(uhci_softc_t *); 269 Static void uhci_dumpregs(uhci_softc_t *); 270 Static void uhci_dump_qhs(uhci_soft_qh_t *); 271 Static void uhci_dump_qh(uhci_soft_qh_t *); 272 Static void uhci_dump_tds(uhci_soft_td_t *); 273 Static void uhci_dump_td(uhci_soft_td_t *); 274 Static void uhci_dump_ii(uhci_intr_info_t *ii); 275 void uhci_dump(void); 276 #endif 277 278 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 279 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 280 #define UWRITE1(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE2(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UWRITE4(sc, r, x) \ 287 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 288 } while (/*CONSTCOND*/0) 289 static __inline uint8_t 290 UREAD1(uhci_softc_t *sc, bus_size_t r) 291 { 292 293 UBARR(sc); 294 return bus_space_read_1(sc->iot, sc->ioh, r); 295 } 296 297 static __inline uint16_t 298 UREAD2(uhci_softc_t *sc, bus_size_t r) 299 { 300 301 UBARR(sc); 302 return bus_space_read_2(sc->iot, sc->ioh, r); 303 } 304 305 static __inline uint32_t 306 UREAD4(uhci_softc_t *sc, bus_size_t r) 307 { 308 309 UBARR(sc); 310 return bus_space_read_4(sc->iot, sc->ioh, r); 311 } 312 313 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 314 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 315 316 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 317 318 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 319 320 #define UHCI_INTR_ENDPT 1 321 322 struct usbd_bus_methods uhci_bus_methods = { 323 uhci_open, 324 uhci_softintr, 325 uhci_poll, 326 uhci_allocm, 327 uhci_freem, 328 uhci_allocx, 329 uhci_freex, 330 }; 331 332 struct usbd_pipe_methods uhci_root_ctrl_methods = { 333 uhci_root_ctrl_transfer, 334 uhci_root_ctrl_start, 335 uhci_root_ctrl_abort, 336 uhci_root_ctrl_close, 337 uhci_noop, 338 uhci_root_ctrl_done, 339 }; 340 341 struct usbd_pipe_methods uhci_root_intr_methods = { 342 uhci_root_intr_transfer, 343 uhci_root_intr_start, 344 uhci_root_intr_abort, 345 uhci_root_intr_close, 346 uhci_noop, 347 uhci_root_intr_done, 348 }; 349 350 struct usbd_pipe_methods uhci_device_ctrl_methods = { 351 uhci_device_ctrl_transfer, 352 uhci_device_ctrl_start, 353 uhci_device_ctrl_abort, 354 uhci_device_ctrl_close, 355 uhci_noop, 356 uhci_device_ctrl_done, 357 }; 358 359 struct usbd_pipe_methods uhci_device_intr_methods = { 360 uhci_device_intr_transfer, 361 uhci_device_intr_start, 362 uhci_device_intr_abort, 363 uhci_device_intr_close, 364 uhci_device_clear_toggle, 365 uhci_device_intr_done, 366 }; 367 368 struct usbd_pipe_methods uhci_device_bulk_methods = { 369 uhci_device_bulk_transfer, 370 uhci_device_bulk_start, 371 uhci_device_bulk_abort, 372 uhci_device_bulk_close, 373 uhci_device_clear_toggle, 374 uhci_device_bulk_done, 375 }; 376 377 struct usbd_pipe_methods uhci_device_isoc_methods = { 378 uhci_device_isoc_transfer, 379 uhci_device_isoc_start, 380 uhci_device_isoc_abort, 381 uhci_device_isoc_close, 382 uhci_noop, 383 uhci_device_isoc_done, 384 }; 385 386 #define uhci_add_intr_info(sc, ii) \ 387 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 388 #define uhci_del_intr_info(ii) \ 389 do { \ 390 LIST_REMOVE((ii), list); \ 391 (ii)->list.le_prev = NULL; \ 392 } while (0) 393 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 394 395 Static inline uhci_soft_qh_t * 396 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 397 { 398 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 399 400 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 401 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 402 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 403 printf("uhci_find_prev_qh: QH not found\n"); 404 return (NULL); 405 } 406 #endif 407 } 408 return (pqh); 409 } 410 411 void 412 uhci_globalreset(uhci_softc_t *sc) 413 { 414 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 415 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 416 UHCICMD(sc, 0); /* do nothing */ 417 } 418 419 usbd_status 420 uhci_init(uhci_softc_t *sc) 421 { 422 usbd_status err; 423 int i, j; 424 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 425 uhci_soft_td_t *std; 426 427 DPRINTFN(1,("uhci_init: start\n")); 428 429 #ifdef UHCI_DEBUG 430 thesc = sc; 431 432 if (uhcidebug > 2) 433 uhci_dumpregs(sc); 434 #endif 435 436 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 437 uhci_globalreset(sc); /* reset the controller */ 438 uhci_reset(sc); 439 440 #ifdef __NetBSD__ 441 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 442 USB_MEM_RESERVE); 443 #endif 444 445 /* Allocate and initialize real frame array. */ 446 err = usb_allocmem(&sc->sc_bus, 447 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 448 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 449 if (err) 450 return (err); 451 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 452 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 453 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 454 455 /* 456 * Allocate a TD, inactive, that hangs from the last QH. 457 * This is to avoid a bug in the PIIX that makes it run berserk 458 * otherwise. 459 */ 460 std = uhci_alloc_std(sc); 461 if (std == NULL) 462 return (USBD_NOMEM); 463 std->link.std = NULL; 464 std->td.td_link = htole32(UHCI_PTR_T); 465 std->td.td_status = htole32(0); /* inactive */ 466 std->td.td_token = htole32(0); 467 std->td.td_buffer = htole32(0); 468 469 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 470 lsqh = uhci_alloc_sqh(sc); 471 if (lsqh == NULL) 472 return (USBD_NOMEM); 473 lsqh->hlink = NULL; 474 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 475 lsqh->elink = std; 476 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 477 sc->sc_last_qh = lsqh; 478 479 /* Allocate the dummy QH where bulk traffic will be queued. */ 480 bsqh = uhci_alloc_sqh(sc); 481 if (bsqh == NULL) 482 return (USBD_NOMEM); 483 bsqh->hlink = lsqh; 484 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 485 bsqh->elink = NULL; 486 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 487 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 488 489 /* Allocate dummy QH where high speed control traffic will be queued. */ 490 chsqh = uhci_alloc_sqh(sc); 491 if (chsqh == NULL) 492 return (USBD_NOMEM); 493 chsqh->hlink = bsqh; 494 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 495 chsqh->elink = NULL; 496 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 497 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 498 499 /* Allocate dummy QH where control traffic will be queued. */ 500 clsqh = uhci_alloc_sqh(sc); 501 if (clsqh == NULL) 502 return (USBD_NOMEM); 503 clsqh->hlink = bsqh; 504 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 505 clsqh->elink = NULL; 506 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 507 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 508 509 /* 510 * Make all (virtual) frame list pointers point to the interrupt 511 * queue heads and the interrupt queue heads at the control 512 * queue head and point the physical frame list to the virtual. 513 */ 514 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 515 std = uhci_alloc_std(sc); 516 sqh = uhci_alloc_sqh(sc); 517 if (std == NULL || sqh == NULL) 518 return (USBD_NOMEM); 519 std->link.sqh = sqh; 520 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 521 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 522 std->td.td_token = htole32(0); 523 std->td.td_buffer = htole32(0); 524 sqh->hlink = clsqh; 525 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 526 sqh->elink = NULL; 527 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 528 sc->sc_vframes[i].htd = std; 529 sc->sc_vframes[i].etd = std; 530 sc->sc_vframes[i].hqh = sqh; 531 sc->sc_vframes[i].eqh = sqh; 532 for (j = i; 533 j < UHCI_FRAMELIST_COUNT; 534 j += UHCI_VFRAMELIST_COUNT) 535 sc->sc_pframes[j] = htole32(std->physaddr); 536 } 537 538 LIST_INIT(&sc->sc_intrhead); 539 540 SIMPLEQ_INIT(&sc->sc_free_xfers); 541 542 usb_callout_init(sc->sc_poll_handle); 543 544 /* Set up the bus struct. */ 545 sc->sc_bus.methods = &uhci_bus_methods; 546 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 547 548 #if defined(__NetBSD__) || defined(__OpenBSD__) 549 sc->sc_suspend = PWR_RESUME; 550 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 551 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 552 #endif 553 554 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 555 556 DPRINTFN(1,("uhci_init: enabling\n")); 557 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 558 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 559 560 return (uhci_run(sc, 1)); /* and here we go... */ 561 } 562 563 #if defined(__NetBSD__) || defined(__OpenBSD__) 564 int 565 uhci_activate(device_ptr_t self, enum devact act) 566 { 567 struct uhci_softc *sc = (struct uhci_softc *)self; 568 int rv = 0; 569 570 switch (act) { 571 case DVACT_ACTIVATE: 572 return (EOPNOTSUPP); 573 574 case DVACT_DEACTIVATE: 575 if (sc->sc_child != NULL) 576 rv = config_deactivate(sc->sc_child); 577 break; 578 } 579 return (rv); 580 } 581 582 int 583 uhci_detach(struct uhci_softc *sc, int flags) 584 { 585 usbd_xfer_handle xfer; 586 int rv = 0; 587 588 if (sc->sc_child != NULL) 589 rv = config_detach(sc->sc_child, flags); 590 591 if (rv != 0) 592 return (rv); 593 594 #if defined(__NetBSD__) || defined(__OpenBSD__) 595 powerhook_disestablish(sc->sc_powerhook); 596 shutdownhook_disestablish(sc->sc_shutdownhook); 597 #endif 598 599 /* Free all xfers associated with this HC. */ 600 for (;;) { 601 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 602 if (xfer == NULL) 603 break; 604 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 605 free(xfer, M_USB); 606 } 607 608 /* XXX free other data structures XXX */ 609 610 return (rv); 611 } 612 #endif 613 614 usbd_status 615 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 616 { 617 struct uhci_softc *sc = (struct uhci_softc *)bus; 618 usbd_status status; 619 u_int32_t n; 620 621 /* 622 * XXX 623 * Since we are allocating a buffer we can assume that we will 624 * need TDs for it. Since we don't want to allocate those from 625 * an interrupt context, we allocate them here and free them again. 626 * This is no guarantee that we'll get the TDs next time... 627 */ 628 n = size / 8; 629 if (n > 16) { 630 u_int32_t i; 631 uhci_soft_td_t **stds; 632 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 633 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 634 M_WAITOK|M_ZERO); 635 for(i=0; i < n; i++) 636 stds[i] = uhci_alloc_std(sc); 637 for(i=0; i < n; i++) 638 if (stds[i] != NULL) 639 uhci_free_std(sc, stds[i]); 640 free(stds, M_TEMP); 641 } 642 643 644 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 645 #ifdef __NetBSD__ 646 if (status == USBD_NOMEM) 647 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 648 #endif 649 return status; 650 } 651 652 void 653 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 654 { 655 #ifdef __NetBSD__ 656 if (dma->block->flags & USB_DMA_RESERVE) { 657 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 658 dma); 659 return; 660 } 661 #endif 662 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 663 } 664 665 usbd_xfer_handle 666 uhci_allocx(struct usbd_bus *bus) 667 { 668 struct uhci_softc *sc = (struct uhci_softc *)bus; 669 usbd_xfer_handle xfer; 670 671 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 672 if (xfer != NULL) { 673 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 674 #ifdef DIAGNOSTIC 675 if (xfer->busy_free != XFER_FREE) { 676 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 677 xfer->busy_free); 678 } 679 #endif 680 } else { 681 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 682 } 683 if (xfer != NULL) { 684 memset(xfer, 0, sizeof (struct uhci_xfer)); 685 UXFER(xfer)->iinfo.sc = sc; 686 #ifdef DIAGNOSTIC 687 UXFER(xfer)->iinfo.isdone = 1; 688 xfer->busy_free = XFER_BUSY; 689 #endif 690 } 691 return (xfer); 692 } 693 694 void 695 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 696 { 697 struct uhci_softc *sc = (struct uhci_softc *)bus; 698 699 #ifdef DIAGNOSTIC 700 if (xfer->busy_free != XFER_BUSY) { 701 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 702 xfer->busy_free); 703 return; 704 } 705 xfer->busy_free = XFER_FREE; 706 if (!UXFER(xfer)->iinfo.isdone) { 707 printf("uhci_freex: !isdone\n"); 708 return; 709 } 710 #endif 711 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 712 } 713 714 /* 715 * Shut down the controller when the system is going down. 716 */ 717 void 718 uhci_shutdown(void *v) 719 { 720 uhci_softc_t *sc = v; 721 int s; 722 723 DPRINTF(("uhci_shutdown: stopping the HC\n")); 724 725 /* 726 * Use polling mode to prevent the interrupts shutting 727 * us down before we shut them down. 728 */ 729 s = splhardusb(); 730 sc->sc_bus.use_polling++; 731 uhci_run(sc, 0); /* stop the controller */ 732 sc->sc_bus.use_polling--; 733 splx(s); 734 } 735 736 /* 737 * Handle suspend/resume. 738 * 739 * We need to switch to polling mode here, because this routine is 740 * called from an interrupt context. This is all right since we 741 * are almost suspended anyway. 742 */ 743 void 744 uhci_power(int why, void *v) 745 { 746 uhci_softc_t *sc = v; 747 int cmd; 748 int s; 749 750 s = splhardusb(); 751 cmd = UREAD2(sc, UHCI_CMD); 752 753 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 754 sc, why, sc->sc_suspend, cmd)); 755 756 switch (why) { 757 case PWR_SUSPEND: 758 case PWR_STANDBY: 759 #ifdef UHCI_DEBUG 760 if (uhcidebug > 2) 761 uhci_dumpregs(sc); 762 #endif 763 if (sc->sc_intr_xfer != NULL) 764 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 765 sc->sc_intr_xfer); 766 sc->sc_bus.use_polling++; 767 uhci_run(sc, 0); /* stop the controller */ 768 769 /* save some state if BIOS doesn't */ 770 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 771 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 772 773 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 774 775 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 776 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 777 sc->sc_suspend = why; 778 sc->sc_bus.use_polling--; 779 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 780 break; 781 case PWR_RESUME: 782 #ifdef DIAGNOSTIC 783 if (sc->sc_suspend == PWR_RESUME) 784 printf("uhci_power: weird, resume without suspend.\n"); 785 #endif 786 sc->sc_bus.use_polling++; 787 sc->sc_suspend = why; 788 if (cmd & UHCI_CMD_RS) 789 uhci_run(sc, 0); /* in case BIOS has started it */ 790 791 /* restore saved state */ 792 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 793 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 794 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 795 796 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 797 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 798 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 799 UHCICMD(sc, UHCI_CMD_MAXP); 800 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 801 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 802 uhci_run(sc, 1); /* and start traffic again */ 803 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 804 sc->sc_bus.use_polling--; 805 if (sc->sc_intr_xfer != NULL) 806 usb_callout(sc->sc_poll_handle, sc->sc_ival, 807 uhci_poll_hub, sc->sc_intr_xfer); 808 #ifdef UHCI_DEBUG 809 if (uhcidebug > 2) 810 uhci_dumpregs(sc); 811 #endif 812 break; 813 case PWR_SOFTSUSPEND: 814 case PWR_SOFTSTANDBY: 815 case PWR_SOFTRESUME: 816 break; 817 } 818 splx(s); 819 } 820 821 #ifdef UHCI_DEBUG 822 Static void 823 uhci_dumpregs(uhci_softc_t *sc) 824 { 825 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 826 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 827 USBDEVNAME(sc->sc_bus.bdev), 828 UREAD2(sc, UHCI_CMD), 829 UREAD2(sc, UHCI_STS), 830 UREAD2(sc, UHCI_INTR), 831 UREAD2(sc, UHCI_FRNUM), 832 UREAD4(sc, UHCI_FLBASEADDR), 833 UREAD1(sc, UHCI_SOF), 834 UREAD2(sc, UHCI_PORTSC1), 835 UREAD2(sc, UHCI_PORTSC2))); 836 } 837 838 void 839 uhci_dump_td(uhci_soft_td_t *p) 840 { 841 char sbuf[128], sbuf2[128]; 842 843 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 844 "token=0x%08lx buffer=0x%08lx\n", 845 p, (long)p->physaddr, 846 (long)le32toh(p->td.td_link), 847 (long)le32toh(p->td.td_status), 848 (long)le32toh(p->td.td_token), 849 (long)le32toh(p->td.td_buffer))); 850 851 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 852 sbuf, sizeof(sbuf)); 853 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 854 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 855 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 856 sbuf2, sizeof(sbuf2)); 857 858 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 859 "D=%d,maxlen=%d\n", sbuf, sbuf2, 860 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 861 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 862 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 863 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 864 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 865 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 866 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 867 } 868 869 void 870 uhci_dump_qh(uhci_soft_qh_t *sqh) 871 { 872 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 873 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 874 le32toh(sqh->qh.qh_elink))); 875 } 876 877 878 #if 1 879 void 880 uhci_dump(void) 881 { 882 uhci_dump_all(thesc); 883 } 884 #endif 885 886 void 887 uhci_dump_all(uhci_softc_t *sc) 888 { 889 uhci_dumpregs(sc); 890 printf("intrs=%d\n", sc->sc_bus.no_intrs); 891 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 892 uhci_dump_qh(sc->sc_lctl_start); 893 } 894 895 896 void 897 uhci_dump_qhs(uhci_soft_qh_t *sqh) 898 { 899 uhci_dump_qh(sqh); 900 901 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 902 * Traverses sideways first, then down. 903 * 904 * QH1 905 * QH2 906 * No QH 907 * TD2.1 908 * TD2.2 909 * TD1.1 910 * etc. 911 * 912 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 913 */ 914 915 916 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 917 uhci_dump_qhs(sqh->hlink); 918 else 919 DPRINTF(("No QH\n")); 920 921 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 922 uhci_dump_tds(sqh->elink); 923 else 924 DPRINTF(("No TD\n")); 925 } 926 927 void 928 uhci_dump_tds(uhci_soft_td_t *std) 929 { 930 uhci_soft_td_t *td; 931 932 for(td = std; td != NULL; td = td->link.std) { 933 uhci_dump_td(td); 934 935 /* Check whether the link pointer in this TD marks 936 * the link pointer as end of queue. This avoids 937 * printing the free list in case the queue/TD has 938 * already been moved there (seatbelt). 939 */ 940 if (le32toh(td->td.td_link) & UHCI_PTR_T || 941 le32toh(td->td.td_link) == 0) 942 break; 943 } 944 } 945 946 Static void 947 uhci_dump_ii(uhci_intr_info_t *ii) 948 { 949 usbd_pipe_handle pipe; 950 usb_endpoint_descriptor_t *ed; 951 usbd_device_handle dev; 952 953 #ifdef DIAGNOSTIC 954 #define DONE ii->isdone 955 #else 956 #define DONE 0 957 #endif 958 if (ii == NULL) { 959 printf("ii NULL\n"); 960 return; 961 } 962 if (ii->xfer == NULL) { 963 printf("ii %p: done=%d xfer=NULL\n", 964 ii, DONE); 965 return; 966 } 967 pipe = ii->xfer->pipe; 968 if (pipe == NULL) { 969 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 970 ii, DONE, ii->xfer); 971 return; 972 } 973 if (pipe->endpoint == NULL) { 974 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 975 ii, DONE, ii->xfer, pipe); 976 return; 977 } 978 if (pipe->device == NULL) { 979 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 980 ii, DONE, ii->xfer, pipe); 981 return; 982 } 983 ed = pipe->endpoint->edesc; 984 dev = pipe->device; 985 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", 986 ii, DONE, ii->xfer, dev, 987 UGETW(dev->ddesc.idVendor), 988 UGETW(dev->ddesc.idProduct), 989 dev->address, pipe, 990 ed->bEndpointAddress, ed->bmAttributes); 991 #undef DONE 992 } 993 994 void uhci_dump_iis(struct uhci_softc *sc); 995 void 996 uhci_dump_iis(struct uhci_softc *sc) 997 { 998 uhci_intr_info_t *ii; 999 1000 printf("intr_info list:\n"); 1001 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1002 uhci_dump_ii(ii); 1003 } 1004 1005 void iidump(void); 1006 void iidump(void) { uhci_dump_iis(thesc); } 1007 1008 #endif 1009 1010 /* 1011 * This routine is executed periodically and simulates interrupts 1012 * from the root controller interrupt pipe for port status change. 1013 */ 1014 void 1015 uhci_poll_hub(void *addr) 1016 { 1017 usbd_xfer_handle xfer = addr; 1018 usbd_pipe_handle pipe = xfer->pipe; 1019 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1020 int s; 1021 u_char *p; 1022 1023 DPRINTFN(20, ("uhci_poll_hub\n")); 1024 1025 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1026 1027 p = KERNADDR(&xfer->dmabuf, 0); 1028 p[0] = 0; 1029 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1030 p[0] |= 1<<1; 1031 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1032 p[0] |= 1<<2; 1033 if (p[0] == 0) 1034 /* No change, try again in a while */ 1035 return; 1036 1037 xfer->actlen = 1; 1038 xfer->status = USBD_NORMAL_COMPLETION; 1039 s = splusb(); 1040 xfer->device->bus->intr_context++; 1041 usb_transfer_complete(xfer); 1042 xfer->device->bus->intr_context--; 1043 splx(s); 1044 } 1045 1046 void 1047 uhci_root_intr_done(usbd_xfer_handle xfer) 1048 { 1049 } 1050 1051 void 1052 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1053 { 1054 } 1055 1056 /* 1057 * Let the last QH loop back to the high speed control transfer QH. 1058 * This is what intel calls "bandwidth reclamation" and improves 1059 * USB performance a lot for some devices. 1060 * If we are already looping, just count it. 1061 */ 1062 void 1063 uhci_add_loop(uhci_softc_t *sc) { 1064 #ifdef UHCI_DEBUG 1065 if (uhcinoloop) 1066 return; 1067 #endif 1068 if (++sc->sc_loops == 1) { 1069 DPRINTFN(5,("uhci_start_loop: add\n")); 1070 /* Note, we don't loop back the soft pointer. */ 1071 sc->sc_last_qh->qh.qh_hlink = 1072 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1073 } 1074 } 1075 1076 void 1077 uhci_rem_loop(uhci_softc_t *sc) { 1078 #ifdef UHCI_DEBUG 1079 if (uhcinoloop) 1080 return; 1081 #endif 1082 if (--sc->sc_loops == 0) { 1083 DPRINTFN(5,("uhci_end_loop: remove\n")); 1084 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1085 } 1086 } 1087 1088 /* Add high speed control QH, called at splusb(). */ 1089 void 1090 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1091 { 1092 uhci_soft_qh_t *eqh; 1093 1094 SPLUSBCHECK; 1095 1096 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1097 eqh = sc->sc_hctl_end; 1098 sqh->hlink = eqh->hlink; 1099 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1100 eqh->hlink = sqh; 1101 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1102 sc->sc_hctl_end = sqh; 1103 #ifdef UHCI_CTL_LOOP 1104 uhci_add_loop(sc); 1105 #endif 1106 } 1107 1108 /* Remove high speed control QH, called at splusb(). */ 1109 void 1110 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1111 { 1112 uhci_soft_qh_t *pqh; 1113 1114 SPLUSBCHECK; 1115 1116 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1117 #ifdef UHCI_CTL_LOOP 1118 uhci_rem_loop(sc); 1119 #endif 1120 /* 1121 * The T bit should be set in the elink of the QH so that the HC 1122 * doesn't follow the pointer. This condition may fail if the 1123 * the transferred packet was short so that the QH still points 1124 * at the last used TD. 1125 * In this case we set the T bit and wait a little for the HC 1126 * to stop looking at the TD. 1127 */ 1128 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1129 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1130 delay(UHCI_QH_REMOVE_DELAY); 1131 } 1132 1133 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1134 pqh->hlink = sqh->hlink; 1135 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1136 delay(UHCI_QH_REMOVE_DELAY); 1137 if (sc->sc_hctl_end == sqh) 1138 sc->sc_hctl_end = pqh; 1139 } 1140 1141 /* Add low speed control QH, called at splusb(). */ 1142 void 1143 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1144 { 1145 uhci_soft_qh_t *eqh; 1146 1147 SPLUSBCHECK; 1148 1149 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1150 eqh = sc->sc_lctl_end; 1151 sqh->hlink = eqh->hlink; 1152 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1153 eqh->hlink = sqh; 1154 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1155 sc->sc_lctl_end = sqh; 1156 } 1157 1158 /* Remove low speed control QH, called at splusb(). */ 1159 void 1160 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1161 { 1162 uhci_soft_qh_t *pqh; 1163 1164 SPLUSBCHECK; 1165 1166 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1167 /* See comment in uhci_remove_hs_ctrl() */ 1168 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1169 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1170 delay(UHCI_QH_REMOVE_DELAY); 1171 } 1172 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1173 pqh->hlink = sqh->hlink; 1174 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1175 delay(UHCI_QH_REMOVE_DELAY); 1176 if (sc->sc_lctl_end == sqh) 1177 sc->sc_lctl_end = pqh; 1178 } 1179 1180 /* Add bulk QH, called at splusb(). */ 1181 void 1182 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1183 { 1184 uhci_soft_qh_t *eqh; 1185 1186 SPLUSBCHECK; 1187 1188 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1189 eqh = sc->sc_bulk_end; 1190 sqh->hlink = eqh->hlink; 1191 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1192 eqh->hlink = sqh; 1193 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1194 sc->sc_bulk_end = sqh; 1195 uhci_add_loop(sc); 1196 } 1197 1198 /* Remove bulk QH, called at splusb(). */ 1199 void 1200 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1201 { 1202 uhci_soft_qh_t *pqh; 1203 1204 SPLUSBCHECK; 1205 1206 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1207 uhci_rem_loop(sc); 1208 /* See comment in uhci_remove_hs_ctrl() */ 1209 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1210 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1211 delay(UHCI_QH_REMOVE_DELAY); 1212 } 1213 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1214 pqh->hlink = sqh->hlink; 1215 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1216 delay(UHCI_QH_REMOVE_DELAY); 1217 if (sc->sc_bulk_end == sqh) 1218 sc->sc_bulk_end = pqh; 1219 } 1220 1221 Static int uhci_intr1(uhci_softc_t *); 1222 1223 int 1224 uhci_intr(void *arg) 1225 { 1226 uhci_softc_t *sc = arg; 1227 1228 if (sc->sc_dying) 1229 return (0); 1230 1231 if (sc->sc_bus.use_polling) { 1232 #ifdef DIAGNOSTIC 1233 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1234 #endif 1235 return (0); 1236 } 1237 1238 return (uhci_intr1(sc)); 1239 } 1240 1241 int 1242 uhci_intr1(uhci_softc_t *sc) 1243 { 1244 int status; 1245 int ack; 1246 1247 #ifdef UHCI_DEBUG 1248 if (uhcidebug > 15) { 1249 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1250 uhci_dumpregs(sc); 1251 } 1252 #endif 1253 1254 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1255 if (status == 0) /* The interrupt was not for us. */ 1256 return (0); 1257 1258 if (sc->sc_suspend != PWR_RESUME) { 1259 printf("%s: interrupt while not operating ignored\n", 1260 USBDEVNAME(sc->sc_bus.bdev)); 1261 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1262 return (0); 1263 } 1264 1265 ack = 0; 1266 if (status & UHCI_STS_USBINT) 1267 ack |= UHCI_STS_USBINT; 1268 if (status & UHCI_STS_USBEI) 1269 ack |= UHCI_STS_USBEI; 1270 if (status & UHCI_STS_RD) { 1271 ack |= UHCI_STS_RD; 1272 #ifdef UHCI_DEBUG 1273 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1274 #endif 1275 } 1276 if (status & UHCI_STS_HSE) { 1277 ack |= UHCI_STS_HSE; 1278 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1279 } 1280 if (status & UHCI_STS_HCPE) { 1281 ack |= UHCI_STS_HCPE; 1282 printf("%s: host controller process error\n", 1283 USBDEVNAME(sc->sc_bus.bdev)); 1284 } 1285 if (status & UHCI_STS_HCH) { 1286 /* no acknowledge needed */ 1287 if (!sc->sc_dying) { 1288 printf("%s: host controller halted\n", 1289 USBDEVNAME(sc->sc_bus.bdev)); 1290 #ifdef UHCI_DEBUG 1291 uhci_dump_all(sc); 1292 #endif 1293 } 1294 sc->sc_dying = 1; 1295 } 1296 1297 if (!ack) 1298 return (0); /* nothing to acknowledge */ 1299 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1300 1301 sc->sc_bus.no_intrs++; 1302 usb_schedsoftintr(&sc->sc_bus); 1303 1304 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1305 1306 return (1); 1307 } 1308 1309 void 1310 uhci_softintr(void *v) 1311 { 1312 uhci_softc_t *sc = v; 1313 uhci_intr_info_t *ii, *nextii; 1314 1315 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1316 sc->sc_bus.intr_context)); 1317 1318 sc->sc_bus.intr_context++; 1319 1320 /* 1321 * Interrupts on UHCI really suck. When the host controller 1322 * interrupts because a transfer is completed there is no 1323 * way of knowing which transfer it was. You can scan down 1324 * the TDs and QHs of the previous frame to limit the search, 1325 * but that assumes that the interrupt was not delayed by more 1326 * than 1 ms, which may not always be true (e.g. after debug 1327 * output on a slow console). 1328 * We scan all interrupt descriptors to see if any have 1329 * completed. 1330 */ 1331 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1332 nextii = LIST_NEXT(ii, list); 1333 uhci_check_intr(sc, ii); 1334 } 1335 1336 #ifdef USB_USE_SOFTINTR 1337 if (sc->sc_softwake) { 1338 sc->sc_softwake = 0; 1339 wakeup(&sc->sc_softwake); 1340 } 1341 #endif /* USB_USE_SOFTINTR */ 1342 1343 sc->sc_bus.intr_context--; 1344 } 1345 1346 /* Check for an interrupt. */ 1347 void 1348 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1349 { 1350 uhci_soft_td_t *std, *lstd; 1351 u_int32_t status; 1352 1353 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1354 #ifdef DIAGNOSTIC 1355 if (ii == NULL) { 1356 printf("uhci_check_intr: no ii? %p\n", ii); 1357 return; 1358 } 1359 #endif 1360 if (ii->xfer->status == USBD_CANCELLED || 1361 ii->xfer->status == USBD_TIMEOUT) { 1362 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1363 return; 1364 } 1365 1366 if (ii->stdstart == NULL) 1367 return; 1368 lstd = ii->stdend; 1369 #ifdef DIAGNOSTIC 1370 if (lstd == NULL) { 1371 printf("uhci_check_intr: std==0\n"); 1372 return; 1373 } 1374 #endif 1375 /* 1376 * If the last TD is still active we need to check whether there 1377 * is an error somewhere in the middle, or whether there was a 1378 * short packet (SPD and not ACTIVE). 1379 */ 1380 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1381 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1382 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1383 status = le32toh(std->td.td_status); 1384 /* If there's an active TD the xfer isn't done. */ 1385 if (status & UHCI_TD_ACTIVE) 1386 break; 1387 /* Any kind of error makes the xfer done. */ 1388 if (status & UHCI_TD_STALLED) 1389 goto done; 1390 /* We want short packets, and it is short: it's done */ 1391 if ((status & UHCI_TD_SPD) && 1392 UHCI_TD_GET_ACTLEN(status) < 1393 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1394 goto done; 1395 } 1396 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1397 ii, ii->stdstart)); 1398 return; 1399 } 1400 done: 1401 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1402 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1403 uhci_idone(ii); 1404 } 1405 1406 /* Called at splusb() */ 1407 void 1408 uhci_idone(uhci_intr_info_t *ii) 1409 { 1410 usbd_xfer_handle xfer = ii->xfer; 1411 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1412 uhci_soft_td_t *std; 1413 u_int32_t status = 0, nstatus; 1414 int actlen; 1415 1416 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1417 #ifdef DIAGNOSTIC 1418 { 1419 int s = splhigh(); 1420 if (ii->isdone) { 1421 splx(s); 1422 #ifdef UHCI_DEBUG 1423 printf("uhci_idone: ii is done!\n "); 1424 uhci_dump_ii(ii); 1425 #else 1426 printf("uhci_idone: ii=%p is done!\n", ii); 1427 #endif 1428 return; 1429 } 1430 ii->isdone = 1; 1431 splx(s); 1432 } 1433 #endif 1434 1435 if (xfer->nframes != 0) { 1436 /* Isoc transfer, do things differently. */ 1437 uhci_soft_td_t **stds = upipe->u.iso.stds; 1438 int i, n, nframes, len; 1439 1440 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1441 1442 nframes = xfer->nframes; 1443 actlen = 0; 1444 n = UXFER(xfer)->curframe; 1445 for (i = 0; i < nframes; i++) { 1446 std = stds[n]; 1447 #ifdef UHCI_DEBUG 1448 if (uhcidebug > 5) { 1449 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1450 uhci_dump_td(std); 1451 } 1452 #endif 1453 if (++n >= UHCI_VFRAMELIST_COUNT) 1454 n = 0; 1455 status = le32toh(std->td.td_status); 1456 len = UHCI_TD_GET_ACTLEN(status); 1457 xfer->frlengths[i] = len; 1458 actlen += len; 1459 } 1460 upipe->u.iso.inuse -= nframes; 1461 xfer->actlen = actlen; 1462 xfer->status = USBD_NORMAL_COMPLETION; 1463 goto end; 1464 } 1465 1466 #ifdef UHCI_DEBUG 1467 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1468 ii, xfer, upipe)); 1469 if (uhcidebug > 10) 1470 uhci_dump_tds(ii->stdstart); 1471 #endif 1472 1473 /* The transfer is done, compute actual length and status. */ 1474 actlen = 0; 1475 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1476 nstatus = le32toh(std->td.td_status); 1477 if (nstatus & UHCI_TD_ACTIVE) 1478 break; 1479 1480 status = nstatus; 1481 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1482 UHCI_TD_PID_SETUP) 1483 actlen += UHCI_TD_GET_ACTLEN(status); 1484 else { 1485 /* 1486 * UHCI will report CRCTO in addition to a STALL or NAK 1487 * for a SETUP transaction. See section 3.2.2, "TD 1488 * CONTROL AND STATUS". 1489 */ 1490 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1491 status &= ~UHCI_TD_CRCTO; 1492 } 1493 } 1494 /* If there are left over TDs we need to update the toggle. */ 1495 if (std != NULL) 1496 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1497 1498 status &= UHCI_TD_ERROR; 1499 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1500 actlen, status)); 1501 xfer->actlen = actlen; 1502 if (status != 0) { 1503 #ifdef UHCI_DEBUG 1504 char sbuf[128]; 1505 1506 bitmask_snprintf((u_int32_t)status, 1507 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1508 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1509 sbuf, sizeof(sbuf)); 1510 1511 DPRINTFN((status == UHCI_TD_STALLED)*10, 1512 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1513 "status 0x%s\n", 1514 xfer->pipe->device->address, 1515 xfer->pipe->endpoint->edesc->bEndpointAddress, 1516 sbuf)); 1517 #endif 1518 1519 if (status == UHCI_TD_STALLED) 1520 xfer->status = USBD_STALLED; 1521 else 1522 xfer->status = USBD_IOERROR; /* more info XXX */ 1523 } else { 1524 xfer->status = USBD_NORMAL_COMPLETION; 1525 } 1526 1527 end: 1528 usb_transfer_complete(xfer); 1529 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1530 } 1531 1532 /* 1533 * Called when a request does not complete. 1534 */ 1535 void 1536 uhci_timeout(void *addr) 1537 { 1538 uhci_intr_info_t *ii = addr; 1539 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1540 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1541 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1542 1543 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1544 1545 if (sc->sc_dying) { 1546 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1547 return; 1548 } 1549 1550 /* Execute the abort in a process context. */ 1551 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1552 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1553 } 1554 1555 void 1556 uhci_timeout_task(void *addr) 1557 { 1558 usbd_xfer_handle xfer = addr; 1559 int s; 1560 1561 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1562 1563 s = splusb(); 1564 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1565 splx(s); 1566 } 1567 1568 /* 1569 * Wait here until controller claims to have an interrupt. 1570 * Then call uhci_intr and return. Use timeout to avoid waiting 1571 * too long. 1572 * Only used during boot when interrupts are not enabled yet. 1573 */ 1574 void 1575 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1576 { 1577 int timo = xfer->timeout; 1578 uhci_intr_info_t *ii; 1579 1580 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1581 1582 xfer->status = USBD_IN_PROGRESS; 1583 for (; timo >= 0; timo--) { 1584 usb_delay_ms(&sc->sc_bus, 1); 1585 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1586 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1587 uhci_intr1(sc); 1588 if (xfer->status != USBD_IN_PROGRESS) 1589 return; 1590 } 1591 } 1592 1593 /* Timeout */ 1594 DPRINTF(("uhci_waitintr: timeout\n")); 1595 for (ii = LIST_FIRST(&sc->sc_intrhead); 1596 ii != NULL && ii->xfer != xfer; 1597 ii = LIST_NEXT(ii, list)) 1598 ; 1599 #ifdef DIAGNOSTIC 1600 if (ii == NULL) 1601 panic("uhci_waitintr: lost intr_info"); 1602 #endif 1603 uhci_idone(ii); 1604 } 1605 1606 void 1607 uhci_poll(struct usbd_bus *bus) 1608 { 1609 uhci_softc_t *sc = (uhci_softc_t *)bus; 1610 1611 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1612 uhci_intr1(sc); 1613 } 1614 1615 void 1616 uhci_reset(uhci_softc_t *sc) 1617 { 1618 int n; 1619 1620 UHCICMD(sc, UHCI_CMD_HCRESET); 1621 /* The reset bit goes low when the controller is done. */ 1622 for (n = 0; n < UHCI_RESET_TIMEOUT && 1623 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1624 usb_delay_ms(&sc->sc_bus, 1); 1625 if (n >= UHCI_RESET_TIMEOUT) 1626 printf("%s: controller did not reset\n", 1627 USBDEVNAME(sc->sc_bus.bdev)); 1628 } 1629 1630 usbd_status 1631 uhci_run(uhci_softc_t *sc, int run) 1632 { 1633 int s, n, running; 1634 u_int16_t cmd; 1635 1636 run = run != 0; 1637 s = splhardusb(); 1638 DPRINTF(("uhci_run: setting run=%d\n", run)); 1639 cmd = UREAD2(sc, UHCI_CMD); 1640 if (run) 1641 cmd |= UHCI_CMD_RS; 1642 else 1643 cmd &= ~UHCI_CMD_RS; 1644 UHCICMD(sc, cmd); 1645 for(n = 0; n < 10; n++) { 1646 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1647 /* return when we've entered the state we want */ 1648 if (run == running) { 1649 splx(s); 1650 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1651 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1652 return (USBD_NORMAL_COMPLETION); 1653 } 1654 usb_delay_ms(&sc->sc_bus, 1); 1655 } 1656 splx(s); 1657 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1658 run ? "start" : "stop"); 1659 return (USBD_IOERROR); 1660 } 1661 1662 /* 1663 * Memory management routines. 1664 * uhci_alloc_std allocates TDs 1665 * uhci_alloc_sqh allocates QHs 1666 * These two routines do their own free list management, 1667 * partly for speed, partly because allocating DMAable memory 1668 * has page size granularaity so much memory would be wasted if 1669 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1670 */ 1671 1672 uhci_soft_td_t * 1673 uhci_alloc_std(uhci_softc_t *sc) 1674 { 1675 uhci_soft_td_t *std; 1676 usbd_status err; 1677 int i, offs; 1678 usb_dma_t dma; 1679 1680 if (sc->sc_freetds == NULL) { 1681 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1682 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1683 UHCI_TD_ALIGN, &dma); 1684 if (err) 1685 return (0); 1686 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1687 offs = i * UHCI_STD_SIZE; 1688 std = KERNADDR(&dma, offs); 1689 std->physaddr = DMAADDR(&dma, offs); 1690 std->link.std = sc->sc_freetds; 1691 sc->sc_freetds = std; 1692 } 1693 } 1694 std = sc->sc_freetds; 1695 sc->sc_freetds = std->link.std; 1696 memset(&std->td, 0, sizeof(uhci_td_t)); 1697 return std; 1698 } 1699 1700 void 1701 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1702 { 1703 #ifdef DIAGNOSTIC 1704 #define TD_IS_FREE 0x12345678 1705 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1706 printf("uhci_free_std: freeing free TD %p\n", std); 1707 return; 1708 } 1709 std->td.td_token = htole32(TD_IS_FREE); 1710 #endif 1711 std->link.std = sc->sc_freetds; 1712 sc->sc_freetds = std; 1713 } 1714 1715 uhci_soft_qh_t * 1716 uhci_alloc_sqh(uhci_softc_t *sc) 1717 { 1718 uhci_soft_qh_t *sqh; 1719 usbd_status err; 1720 int i, offs; 1721 usb_dma_t dma; 1722 1723 if (sc->sc_freeqhs == NULL) { 1724 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1725 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1726 UHCI_QH_ALIGN, &dma); 1727 if (err) 1728 return (0); 1729 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1730 offs = i * UHCI_SQH_SIZE; 1731 sqh = KERNADDR(&dma, offs); 1732 sqh->physaddr = DMAADDR(&dma, offs); 1733 sqh->hlink = sc->sc_freeqhs; 1734 sc->sc_freeqhs = sqh; 1735 } 1736 } 1737 sqh = sc->sc_freeqhs; 1738 sc->sc_freeqhs = sqh->hlink; 1739 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1740 return (sqh); 1741 } 1742 1743 void 1744 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1745 { 1746 sqh->hlink = sc->sc_freeqhs; 1747 sc->sc_freeqhs = sqh; 1748 } 1749 1750 void 1751 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1752 uhci_soft_td_t *stdend) 1753 { 1754 uhci_soft_td_t *p; 1755 1756 for (; std != stdend; std = p) { 1757 p = std->link.std; 1758 uhci_free_std(sc, std); 1759 } 1760 } 1761 1762 usbd_status 1763 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1764 int rd, u_int16_t flags, usb_dma_t *dma, 1765 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1766 { 1767 uhci_soft_td_t *p, *lastp; 1768 uhci_physaddr_t lastlink; 1769 int i, ntd, l, tog, maxp; 1770 u_int32_t status; 1771 int addr = upipe->pipe.device->address; 1772 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1773 1774 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1775 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1776 upipe->pipe.device->speed, flags)); 1777 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1778 if (maxp == 0) { 1779 printf("uhci_alloc_std_chain: maxp=0\n"); 1780 return (USBD_INVAL); 1781 } 1782 ntd = (len + maxp - 1) / maxp; 1783 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1784 ntd++; 1785 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1786 if (ntd == 0) { 1787 *sp = *ep = 0; 1788 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1789 return (USBD_NORMAL_COMPLETION); 1790 } 1791 tog = upipe->nexttoggle; 1792 if (ntd % 2 == 0) 1793 tog ^= 1; 1794 upipe->nexttoggle = tog ^ 1; 1795 lastp = NULL; 1796 lastlink = UHCI_PTR_T; 1797 ntd--; 1798 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1799 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1800 status |= UHCI_TD_LS; 1801 if (flags & USBD_SHORT_XFER_OK) 1802 status |= UHCI_TD_SPD; 1803 for (i = ntd; i >= 0; i--) { 1804 p = uhci_alloc_std(sc); 1805 if (p == NULL) { 1806 uhci_free_std_chain(sc, lastp, NULL); 1807 return (USBD_NOMEM); 1808 } 1809 p->link.std = lastp; 1810 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1811 lastp = p; 1812 lastlink = p->physaddr; 1813 p->td.td_status = htole32(status); 1814 if (i == ntd) { 1815 /* last TD */ 1816 l = len % maxp; 1817 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1818 l = maxp; 1819 *ep = p; 1820 } else 1821 l = maxp; 1822 p->td.td_token = 1823 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1824 UHCI_TD_OUT(l, endpt, addr, tog)); 1825 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1826 tog ^= 1; 1827 } 1828 *sp = lastp; 1829 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1830 upipe->nexttoggle)); 1831 return (USBD_NORMAL_COMPLETION); 1832 } 1833 1834 void 1835 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1836 { 1837 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1838 upipe->nexttoggle = 0; 1839 } 1840 1841 void 1842 uhci_noop(usbd_pipe_handle pipe) 1843 { 1844 } 1845 1846 usbd_status 1847 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1848 { 1849 usbd_status err; 1850 1851 /* Insert last in queue. */ 1852 err = usb_insert_transfer(xfer); 1853 if (err) 1854 return (err); 1855 1856 /* 1857 * Pipe isn't running (otherwise err would be USBD_INPROG), 1858 * so start it first. 1859 */ 1860 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1861 } 1862 1863 usbd_status 1864 uhci_device_bulk_start(usbd_xfer_handle xfer) 1865 { 1866 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1867 usbd_device_handle dev = upipe->pipe.device; 1868 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1869 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1870 uhci_soft_td_t *data, *dataend; 1871 uhci_soft_qh_t *sqh; 1872 usbd_status err; 1873 int len, isread, endpt; 1874 int s; 1875 1876 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1877 xfer, xfer->length, xfer->flags, ii)); 1878 1879 if (sc->sc_dying) 1880 return (USBD_IOERROR); 1881 1882 #ifdef DIAGNOSTIC 1883 if (xfer->rqflags & URQ_REQUEST) 1884 panic("uhci_device_bulk_transfer: a request"); 1885 #endif 1886 1887 len = xfer->length; 1888 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1889 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1890 sqh = upipe->u.bulk.sqh; 1891 1892 upipe->u.bulk.isread = isread; 1893 upipe->u.bulk.length = len; 1894 1895 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1896 &xfer->dmabuf, &data, &dataend); 1897 if (err) 1898 return (err); 1899 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1900 1901 #ifdef UHCI_DEBUG 1902 if (uhcidebug > 8) { 1903 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1904 uhci_dump_tds(data); 1905 } 1906 #endif 1907 1908 /* Set up interrupt info. */ 1909 ii->xfer = xfer; 1910 ii->stdstart = data; 1911 ii->stdend = dataend; 1912 #ifdef DIAGNOSTIC 1913 if (!ii->isdone) { 1914 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1915 } 1916 ii->isdone = 0; 1917 #endif 1918 1919 sqh->elink = data; 1920 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1921 1922 s = splusb(); 1923 uhci_add_bulk(sc, sqh); 1924 uhci_add_intr_info(sc, ii); 1925 1926 if (xfer->timeout && !sc->sc_bus.use_polling) { 1927 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1928 uhci_timeout, ii); 1929 } 1930 xfer->status = USBD_IN_PROGRESS; 1931 splx(s); 1932 1933 #ifdef UHCI_DEBUG 1934 if (uhcidebug > 10) { 1935 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1936 uhci_dump_tds(data); 1937 } 1938 #endif 1939 1940 if (sc->sc_bus.use_polling) 1941 uhci_waitintr(sc, xfer); 1942 1943 return (USBD_IN_PROGRESS); 1944 } 1945 1946 /* Abort a device bulk request. */ 1947 void 1948 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1949 { 1950 DPRINTF(("uhci_device_bulk_abort:\n")); 1951 uhci_abort_xfer(xfer, USBD_CANCELLED); 1952 } 1953 1954 /* 1955 * Abort a device request. 1956 * If this routine is called at splusb() it guarantees that the request 1957 * will be removed from the hardware scheduling and that the callback 1958 * for it will be called with USBD_CANCELLED status. 1959 * It's impossible to guarantee that the requested transfer will not 1960 * have happened since the hardware runs concurrently. 1961 * If the transaction has already happened we rely on the ordinary 1962 * interrupt processing to process it. 1963 */ 1964 void 1965 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1966 { 1967 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1968 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1969 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1970 uhci_soft_td_t *std; 1971 int s; 1972 int wake; 1973 1974 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1975 1976 if (sc->sc_dying) { 1977 /* If we're dying, just do the software part. */ 1978 s = splusb(); 1979 xfer->status = status; /* make software ignore it */ 1980 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1981 usb_transfer_complete(xfer); 1982 splx(s); 1983 return; 1984 } 1985 1986 if (xfer->device->bus->intr_context || !curproc) 1987 panic("uhci_abort_xfer: not in process context"); 1988 1989 /* 1990 * If an abort is already in progress then just wait for it to 1991 * complete and return. 1992 */ 1993 if (xfer->hcflags & UXFER_ABORTING) { 1994 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1995 #ifdef DIAGNOSTIC 1996 if (status == USBD_TIMEOUT) 1997 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 1998 #endif 1999 /* Override the status which might be USBD_TIMEOUT. */ 2000 xfer->status = status; 2001 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2002 xfer->hcflags |= UXFER_ABORTWAIT; 2003 while (xfer->hcflags & UXFER_ABORTING) 2004 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2005 return; 2006 } 2007 xfer->hcflags |= UXFER_ABORTING; 2008 2009 /* 2010 * Step 1: Make interrupt routine and hardware ignore xfer. 2011 */ 2012 s = splusb(); 2013 xfer->status = status; /* make software ignore it */ 2014 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2015 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2016 for (std = ii->stdstart; std != NULL; std = std->link.std) 2017 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2018 splx(s); 2019 2020 /* 2021 * Step 2: Wait until we know hardware has finished any possible 2022 * use of the xfer. Also make sure the soft interrupt routine 2023 * has run. 2024 */ 2025 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2026 s = splusb(); 2027 #ifdef USB_USE_SOFTINTR 2028 sc->sc_softwake = 1; 2029 #endif /* USB_USE_SOFTINTR */ 2030 usb_schedsoftintr(&sc->sc_bus); 2031 #ifdef USB_USE_SOFTINTR 2032 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2033 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2034 #endif /* USB_USE_SOFTINTR */ 2035 splx(s); 2036 2037 /* 2038 * Step 3: Execute callback. 2039 */ 2040 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2041 s = splusb(); 2042 #ifdef DIAGNOSTIC 2043 ii->isdone = 1; 2044 #endif 2045 wake = xfer->hcflags & UXFER_ABORTWAIT; 2046 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2047 usb_transfer_complete(xfer); 2048 if (wake) 2049 wakeup(&xfer->hcflags); 2050 splx(s); 2051 } 2052 2053 /* Close a device bulk pipe. */ 2054 void 2055 uhci_device_bulk_close(usbd_pipe_handle pipe) 2056 { 2057 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2058 usbd_device_handle dev = upipe->pipe.device; 2059 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2060 2061 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2062 } 2063 2064 usbd_status 2065 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2066 { 2067 usbd_status err; 2068 2069 /* Insert last in queue. */ 2070 err = usb_insert_transfer(xfer); 2071 if (err) 2072 return (err); 2073 2074 /* 2075 * Pipe isn't running (otherwise err would be USBD_INPROG), 2076 * so start it first. 2077 */ 2078 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2079 } 2080 2081 usbd_status 2082 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2083 { 2084 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2085 usbd_status err; 2086 2087 if (sc->sc_dying) 2088 return (USBD_IOERROR); 2089 2090 #ifdef DIAGNOSTIC 2091 if (!(xfer->rqflags & URQ_REQUEST)) 2092 panic("uhci_device_ctrl_transfer: not a request"); 2093 #endif 2094 2095 err = uhci_device_request(xfer); 2096 if (err) 2097 return (err); 2098 2099 if (sc->sc_bus.use_polling) 2100 uhci_waitintr(sc, xfer); 2101 return (USBD_IN_PROGRESS); 2102 } 2103 2104 usbd_status 2105 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2106 { 2107 usbd_status err; 2108 2109 /* Insert last in queue. */ 2110 err = usb_insert_transfer(xfer); 2111 if (err) 2112 return (err); 2113 2114 /* 2115 * Pipe isn't running (otherwise err would be USBD_INPROG), 2116 * so start it first. 2117 */ 2118 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2119 } 2120 2121 usbd_status 2122 uhci_device_intr_start(usbd_xfer_handle xfer) 2123 { 2124 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2125 usbd_device_handle dev = upipe->pipe.device; 2126 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2127 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2128 uhci_soft_td_t *data, *dataend; 2129 uhci_soft_qh_t *sqh; 2130 usbd_status err; 2131 int isread, endpt; 2132 int i, s; 2133 2134 if (sc->sc_dying) 2135 return (USBD_IOERROR); 2136 2137 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2138 xfer, xfer->length, xfer->flags)); 2139 2140 #ifdef DIAGNOSTIC 2141 if (xfer->rqflags & URQ_REQUEST) 2142 panic("uhci_device_intr_transfer: a request"); 2143 #endif 2144 2145 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2146 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2147 2148 upipe->u.intr.isread = isread; 2149 2150 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2151 xfer->flags, &xfer->dmabuf, &data, 2152 &dataend); 2153 if (err) 2154 return (err); 2155 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2156 2157 #ifdef UHCI_DEBUG 2158 if (uhcidebug > 10) { 2159 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2160 uhci_dump_tds(data); 2161 uhci_dump_qh(upipe->u.intr.qhs[0]); 2162 } 2163 #endif 2164 2165 s = splusb(); 2166 /* Set up interrupt info. */ 2167 ii->xfer = xfer; 2168 ii->stdstart = data; 2169 ii->stdend = dataend; 2170 #ifdef DIAGNOSTIC 2171 if (!ii->isdone) { 2172 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2173 } 2174 ii->isdone = 0; 2175 #endif 2176 2177 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2178 upipe->u.intr.qhs[0])); 2179 for (i = 0; i < upipe->u.intr.npoll; i++) { 2180 sqh = upipe->u.intr.qhs[i]; 2181 sqh->elink = data; 2182 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2183 } 2184 uhci_add_intr_info(sc, ii); 2185 xfer->status = USBD_IN_PROGRESS; 2186 splx(s); 2187 2188 #ifdef UHCI_DEBUG 2189 if (uhcidebug > 10) { 2190 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2191 uhci_dump_tds(data); 2192 uhci_dump_qh(upipe->u.intr.qhs[0]); 2193 } 2194 #endif 2195 2196 return (USBD_IN_PROGRESS); 2197 } 2198 2199 /* Abort a device control request. */ 2200 void 2201 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2202 { 2203 DPRINTF(("uhci_device_ctrl_abort:\n")); 2204 uhci_abort_xfer(xfer, USBD_CANCELLED); 2205 } 2206 2207 /* Close a device control pipe. */ 2208 void 2209 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2210 { 2211 } 2212 2213 /* Abort a device interrupt request. */ 2214 void 2215 uhci_device_intr_abort(usbd_xfer_handle xfer) 2216 { 2217 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2218 if (xfer->pipe->intrxfer == xfer) { 2219 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2220 xfer->pipe->intrxfer = NULL; 2221 } 2222 uhci_abort_xfer(xfer, USBD_CANCELLED); 2223 } 2224 2225 /* Close a device interrupt pipe. */ 2226 void 2227 uhci_device_intr_close(usbd_pipe_handle pipe) 2228 { 2229 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2230 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2231 int i, npoll; 2232 int s; 2233 2234 /* Unlink descriptors from controller data structures. */ 2235 npoll = upipe->u.intr.npoll; 2236 s = splusb(); 2237 for (i = 0; i < npoll; i++) 2238 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2239 splx(s); 2240 2241 /* 2242 * We now have to wait for any activity on the physical 2243 * descriptors to stop. 2244 */ 2245 usb_delay_ms(&sc->sc_bus, 2); 2246 2247 for(i = 0; i < npoll; i++) 2248 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2249 free(upipe->u.intr.qhs, M_USBHC); 2250 2251 /* XXX free other resources */ 2252 } 2253 2254 usbd_status 2255 uhci_device_request(usbd_xfer_handle xfer) 2256 { 2257 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2258 usb_device_request_t *req = &xfer->request; 2259 usbd_device_handle dev = upipe->pipe.device; 2260 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2261 int addr = dev->address; 2262 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2263 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2264 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2265 uhci_soft_qh_t *sqh; 2266 int len; 2267 u_int32_t ls; 2268 usbd_status err; 2269 int isread; 2270 int s; 2271 2272 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2273 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2274 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2275 UGETW(req->wIndex), UGETW(req->wLength), 2276 addr, endpt)); 2277 2278 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2279 isread = req->bmRequestType & UT_READ; 2280 len = UGETW(req->wLength); 2281 2282 setup = upipe->u.ctl.setup; 2283 stat = upipe->u.ctl.stat; 2284 sqh = upipe->u.ctl.sqh; 2285 2286 /* Set up data transaction */ 2287 if (len != 0) { 2288 upipe->nexttoggle = 1; 2289 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2290 &xfer->dmabuf, &data, &dataend); 2291 if (err) 2292 return (err); 2293 next = data; 2294 dataend->link.std = stat; 2295 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2296 } else { 2297 next = stat; 2298 } 2299 upipe->u.ctl.length = len; 2300 2301 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2302 2303 setup->link.std = next; 2304 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2305 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2306 UHCI_TD_ACTIVE); 2307 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2308 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2309 2310 stat->link.std = NULL; 2311 stat->td.td_link = htole32(UHCI_PTR_T); 2312 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2313 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2314 stat->td.td_token = 2315 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2316 UHCI_TD_IN (0, endpt, addr, 1)); 2317 stat->td.td_buffer = htole32(0); 2318 2319 #ifdef UHCI_DEBUG 2320 if (uhcidebug > 10) { 2321 DPRINTF(("uhci_device_request: before transfer\n")); 2322 uhci_dump_tds(setup); 2323 } 2324 #endif 2325 2326 /* Set up interrupt info. */ 2327 ii->xfer = xfer; 2328 ii->stdstart = setup; 2329 ii->stdend = stat; 2330 #ifdef DIAGNOSTIC 2331 if (!ii->isdone) { 2332 printf("uhci_device_request: not done, ii=%p\n", ii); 2333 } 2334 ii->isdone = 0; 2335 #endif 2336 2337 sqh->elink = setup; 2338 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2339 2340 s = splusb(); 2341 if (dev->speed == USB_SPEED_LOW) 2342 uhci_add_ls_ctrl(sc, sqh); 2343 else 2344 uhci_add_hs_ctrl(sc, sqh); 2345 uhci_add_intr_info(sc, ii); 2346 #ifdef UHCI_DEBUG 2347 if (uhcidebug > 12) { 2348 uhci_soft_td_t *std; 2349 uhci_soft_qh_t *xqh; 2350 uhci_soft_qh_t *sxqh; 2351 int maxqh = 0; 2352 uhci_physaddr_t link; 2353 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2354 for (std = sc->sc_vframes[0].htd, link = 0; 2355 (link & UHCI_PTR_QH) == 0; 2356 std = std->link.std) { 2357 link = le32toh(std->td.td_link); 2358 uhci_dump_td(std); 2359 } 2360 sxqh = (uhci_soft_qh_t *)std; 2361 uhci_dump_qh(sxqh); 2362 for (xqh = sxqh; 2363 xqh != NULL; 2364 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2365 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2366 uhci_dump_qh(xqh); 2367 } 2368 DPRINTF(("Enqueued QH:\n")); 2369 uhci_dump_qh(sqh); 2370 uhci_dump_tds(sqh->elink); 2371 } 2372 #endif 2373 if (xfer->timeout && !sc->sc_bus.use_polling) { 2374 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2375 uhci_timeout, ii); 2376 } 2377 xfer->status = USBD_IN_PROGRESS; 2378 splx(s); 2379 2380 return (USBD_NORMAL_COMPLETION); 2381 } 2382 2383 usbd_status 2384 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2385 { 2386 usbd_status err; 2387 2388 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2389 2390 /* Put it on our queue, */ 2391 err = usb_insert_transfer(xfer); 2392 2393 /* bail out on error, */ 2394 if (err && err != USBD_IN_PROGRESS) 2395 return (err); 2396 2397 /* XXX should check inuse here */ 2398 2399 /* insert into schedule, */ 2400 uhci_device_isoc_enter(xfer); 2401 2402 /* and start if the pipe wasn't running */ 2403 if (!err) 2404 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2405 2406 return (err); 2407 } 2408 2409 void 2410 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2411 { 2412 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2413 usbd_device_handle dev = upipe->pipe.device; 2414 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2415 struct iso *iso = &upipe->u.iso; 2416 uhci_soft_td_t *std; 2417 u_int32_t buf, len, status; 2418 int s, i, next, nframes; 2419 2420 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2421 "nframes=%d\n", 2422 iso->inuse, iso->next, xfer, xfer->nframes)); 2423 2424 if (sc->sc_dying) 2425 return; 2426 2427 if (xfer->status == USBD_IN_PROGRESS) { 2428 /* This request has already been entered into the frame list */ 2429 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2430 /* XXX */ 2431 } 2432 2433 #ifdef DIAGNOSTIC 2434 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2435 printf("uhci_device_isoc_enter: overflow!\n"); 2436 #endif 2437 2438 next = iso->next; 2439 if (next == -1) { 2440 /* Not in use yet, schedule it a few frames ahead. */ 2441 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2442 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2443 } 2444 2445 xfer->status = USBD_IN_PROGRESS; 2446 UXFER(xfer)->curframe = next; 2447 2448 buf = DMAADDR(&xfer->dmabuf, 0); 2449 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2450 UHCI_TD_ACTIVE | 2451 UHCI_TD_IOS); 2452 nframes = xfer->nframes; 2453 s = splusb(); 2454 for (i = 0; i < nframes; i++) { 2455 std = iso->stds[next]; 2456 if (++next >= UHCI_VFRAMELIST_COUNT) 2457 next = 0; 2458 len = xfer->frlengths[i]; 2459 std->td.td_buffer = htole32(buf); 2460 if (i == nframes - 1) 2461 status |= UHCI_TD_IOC; 2462 std->td.td_status = htole32(status); 2463 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2464 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2465 #ifdef UHCI_DEBUG 2466 if (uhcidebug > 5) { 2467 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2468 uhci_dump_td(std); 2469 } 2470 #endif 2471 buf += len; 2472 } 2473 iso->next = next; 2474 iso->inuse += xfer->nframes; 2475 2476 splx(s); 2477 } 2478 2479 usbd_status 2480 uhci_device_isoc_start(usbd_xfer_handle xfer) 2481 { 2482 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2483 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2484 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2485 uhci_soft_td_t *end; 2486 int s, i; 2487 2488 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2489 2490 if (sc->sc_dying) 2491 return (USBD_IOERROR); 2492 2493 #ifdef DIAGNOSTIC 2494 if (xfer->status != USBD_IN_PROGRESS) 2495 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2496 #endif 2497 2498 /* Find the last TD */ 2499 i = UXFER(xfer)->curframe + xfer->nframes; 2500 if (i >= UHCI_VFRAMELIST_COUNT) 2501 i -= UHCI_VFRAMELIST_COUNT; 2502 end = upipe->u.iso.stds[i]; 2503 2504 #ifdef DIAGNOSTIC 2505 if (end == NULL) { 2506 printf("uhci_device_isoc_start: end == NULL\n"); 2507 return (USBD_INVAL); 2508 } 2509 #endif 2510 2511 s = splusb(); 2512 2513 /* Set up interrupt info. */ 2514 ii->xfer = xfer; 2515 ii->stdstart = end; 2516 ii->stdend = end; 2517 #ifdef DIAGNOSTIC 2518 if (!ii->isdone) 2519 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2520 ii->isdone = 0; 2521 #endif 2522 uhci_add_intr_info(sc, ii); 2523 2524 splx(s); 2525 2526 return (USBD_IN_PROGRESS); 2527 } 2528 2529 void 2530 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2531 { 2532 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2533 uhci_soft_td_t **stds = upipe->u.iso.stds; 2534 uhci_soft_td_t *std; 2535 int i, n, s, nframes, maxlen, len; 2536 2537 s = splusb(); 2538 2539 /* Transfer is already done. */ 2540 if (xfer->status != USBD_NOT_STARTED && 2541 xfer->status != USBD_IN_PROGRESS) { 2542 splx(s); 2543 return; 2544 } 2545 2546 /* Give xfer the requested abort code. */ 2547 xfer->status = USBD_CANCELLED; 2548 2549 /* make hardware ignore it, */ 2550 nframes = xfer->nframes; 2551 n = UXFER(xfer)->curframe; 2552 maxlen = 0; 2553 for (i = 0; i < nframes; i++) { 2554 std = stds[n]; 2555 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2556 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2557 if (len > maxlen) 2558 maxlen = len; 2559 if (++n >= UHCI_VFRAMELIST_COUNT) 2560 n = 0; 2561 } 2562 2563 /* and wait until we are sure the hardware has finished. */ 2564 delay(maxlen); 2565 2566 #ifdef DIAGNOSTIC 2567 UXFER(xfer)->iinfo.isdone = 1; 2568 #endif 2569 /* Run callback and remove from interrupt list. */ 2570 usb_transfer_complete(xfer); 2571 2572 splx(s); 2573 } 2574 2575 void 2576 uhci_device_isoc_close(usbd_pipe_handle pipe) 2577 { 2578 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2579 usbd_device_handle dev = upipe->pipe.device; 2580 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2581 uhci_soft_td_t *std, *vstd; 2582 struct iso *iso; 2583 int i, s; 2584 2585 /* 2586 * Make sure all TDs are marked as inactive. 2587 * Wait for completion. 2588 * Unschedule. 2589 * Deallocate. 2590 */ 2591 iso = &upipe->u.iso; 2592 2593 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2594 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2595 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2596 2597 s = splusb(); 2598 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2599 std = iso->stds[i]; 2600 for (vstd = sc->sc_vframes[i].htd; 2601 vstd != NULL && vstd->link.std != std; 2602 vstd = vstd->link.std) 2603 ; 2604 if (vstd == NULL) { 2605 /*panic*/ 2606 printf("uhci_device_isoc_close: %p not found\n", std); 2607 splx(s); 2608 return; 2609 } 2610 vstd->link = std->link; 2611 vstd->td.td_link = std->td.td_link; 2612 uhci_free_std(sc, std); 2613 } 2614 splx(s); 2615 2616 free(iso->stds, M_USBHC); 2617 } 2618 2619 usbd_status 2620 uhci_setup_isoc(usbd_pipe_handle pipe) 2621 { 2622 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2623 usbd_device_handle dev = upipe->pipe.device; 2624 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2625 int addr = upipe->pipe.device->address; 2626 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2627 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2628 uhci_soft_td_t *std, *vstd; 2629 u_int32_t token; 2630 struct iso *iso; 2631 int i, s; 2632 2633 iso = &upipe->u.iso; 2634 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2635 M_USBHC, M_WAITOK); 2636 2637 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2638 UHCI_TD_OUT(0, endpt, addr, 0); 2639 2640 /* Allocate the TDs and mark as inactive; */ 2641 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2642 std = uhci_alloc_std(sc); 2643 if (std == 0) 2644 goto bad; 2645 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2646 std->td.td_token = htole32(token); 2647 iso->stds[i] = std; 2648 } 2649 2650 /* Insert TDs into schedule. */ 2651 s = splusb(); 2652 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2653 std = iso->stds[i]; 2654 vstd = sc->sc_vframes[i].htd; 2655 std->link = vstd->link; 2656 std->td.td_link = vstd->td.td_link; 2657 vstd->link.std = std; 2658 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2659 } 2660 splx(s); 2661 2662 iso->next = -1; 2663 iso->inuse = 0; 2664 2665 return (USBD_NORMAL_COMPLETION); 2666 2667 bad: 2668 while (--i >= 0) 2669 uhci_free_std(sc, iso->stds[i]); 2670 free(iso->stds, M_USBHC); 2671 return (USBD_NOMEM); 2672 } 2673 2674 void 2675 uhci_device_isoc_done(usbd_xfer_handle xfer) 2676 { 2677 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2678 2679 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2680 xfer->actlen, xfer->busy_free)); 2681 2682 if (ii->xfer != xfer) 2683 /* Not on interrupt list, ignore it. */ 2684 return; 2685 2686 if (!uhci_active_intr_info(ii)) 2687 return; 2688 2689 #ifdef DIAGNOSTIC 2690 if (ii->stdend == NULL) { 2691 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2692 #ifdef UHCI_DEBUG 2693 uhci_dump_ii(ii); 2694 #endif 2695 return; 2696 } 2697 #endif 2698 2699 /* Turn off the interrupt since it is active even if the TD is not. */ 2700 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2701 2702 uhci_del_intr_info(ii); /* remove from active list */ 2703 } 2704 2705 void 2706 uhci_device_intr_done(usbd_xfer_handle xfer) 2707 { 2708 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2709 uhci_softc_t *sc = ii->sc; 2710 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2711 uhci_soft_qh_t *sqh; 2712 int i, npoll; 2713 2714 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2715 2716 npoll = upipe->u.intr.npoll; 2717 for(i = 0; i < npoll; i++) { 2718 sqh = upipe->u.intr.qhs[i]; 2719 sqh->elink = NULL; 2720 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2721 } 2722 uhci_free_std_chain(sc, ii->stdstart, NULL); 2723 2724 /* XXX Wasteful. */ 2725 if (xfer->pipe->repeat) { 2726 uhci_soft_td_t *data, *dataend; 2727 2728 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2729 2730 /* This alloc cannot fail since we freed the chain above. */ 2731 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2732 &xfer->dmabuf, &data, &dataend); 2733 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2734 2735 #ifdef UHCI_DEBUG 2736 if (uhcidebug > 10) { 2737 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2738 uhci_dump_tds(data); 2739 uhci_dump_qh(upipe->u.intr.qhs[0]); 2740 } 2741 #endif 2742 2743 ii->stdstart = data; 2744 ii->stdend = dataend; 2745 #ifdef DIAGNOSTIC 2746 if (!ii->isdone) { 2747 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2748 } 2749 ii->isdone = 0; 2750 #endif 2751 for (i = 0; i < npoll; i++) { 2752 sqh = upipe->u.intr.qhs[i]; 2753 sqh->elink = data; 2754 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2755 } 2756 xfer->status = USBD_IN_PROGRESS; 2757 /* The ii is already on the examined list, just leave it. */ 2758 } else { 2759 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2760 if (uhci_active_intr_info(ii)) 2761 uhci_del_intr_info(ii); 2762 } 2763 } 2764 2765 /* Deallocate request data structures */ 2766 void 2767 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2768 { 2769 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2770 uhci_softc_t *sc = ii->sc; 2771 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2772 2773 #ifdef DIAGNOSTIC 2774 if (!(xfer->rqflags & URQ_REQUEST)) 2775 panic("uhci_device_ctrl_done: not a request"); 2776 #endif 2777 2778 if (!uhci_active_intr_info(ii)) 2779 return; 2780 2781 uhci_del_intr_info(ii); /* remove from active list */ 2782 2783 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2784 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2785 else 2786 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2787 2788 if (upipe->u.ctl.length != 0) 2789 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2790 2791 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2792 } 2793 2794 /* Deallocate request data structures */ 2795 void 2796 uhci_device_bulk_done(usbd_xfer_handle xfer) 2797 { 2798 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2799 uhci_softc_t *sc = ii->sc; 2800 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2801 2802 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2803 xfer, ii, sc, upipe)); 2804 2805 if (!uhci_active_intr_info(ii)) 2806 return; 2807 2808 uhci_del_intr_info(ii); /* remove from active list */ 2809 2810 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2811 2812 uhci_free_std_chain(sc, ii->stdstart, NULL); 2813 2814 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2815 } 2816 2817 /* Add interrupt QH, called with vflock. */ 2818 void 2819 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2820 { 2821 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2822 uhci_soft_qh_t *eqh; 2823 2824 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2825 2826 eqh = vf->eqh; 2827 sqh->hlink = eqh->hlink; 2828 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2829 eqh->hlink = sqh; 2830 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2831 vf->eqh = sqh; 2832 vf->bandwidth++; 2833 } 2834 2835 /* Remove interrupt QH. */ 2836 void 2837 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2838 { 2839 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2840 uhci_soft_qh_t *pqh; 2841 2842 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2843 2844 /* See comment in uhci_remove_ctrl() */ 2845 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2846 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2847 delay(UHCI_QH_REMOVE_DELAY); 2848 } 2849 2850 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2851 pqh->hlink = sqh->hlink; 2852 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2853 delay(UHCI_QH_REMOVE_DELAY); 2854 if (vf->eqh == sqh) 2855 vf->eqh = pqh; 2856 vf->bandwidth--; 2857 } 2858 2859 usbd_status 2860 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2861 { 2862 uhci_soft_qh_t *sqh; 2863 int i, npoll, s; 2864 u_int bestbw, bw, bestoffs, offs; 2865 2866 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2867 if (ival == 0) { 2868 printf("uhci_device_setintr: 0 interval\n"); 2869 return (USBD_INVAL); 2870 } 2871 2872 if (ival > UHCI_VFRAMELIST_COUNT) 2873 ival = UHCI_VFRAMELIST_COUNT; 2874 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2875 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2876 2877 upipe->u.intr.npoll = npoll; 2878 upipe->u.intr.qhs = 2879 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2880 2881 /* 2882 * Figure out which offset in the schedule that has most 2883 * bandwidth left over. 2884 */ 2885 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2886 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2887 for (bw = i = 0; i < npoll; i++) 2888 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2889 if (bw < bestbw) { 2890 bestbw = bw; 2891 bestoffs = offs; 2892 } 2893 } 2894 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2895 2896 for(i = 0; i < npoll; i++) { 2897 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2898 sqh->elink = NULL; 2899 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2900 sqh->pos = MOD(i * ival + bestoffs); 2901 } 2902 #undef MOD 2903 2904 s = splusb(); 2905 /* Enter QHs into the controller data structures. */ 2906 for(i = 0; i < npoll; i++) 2907 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2908 splx(s); 2909 2910 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2911 return (USBD_NORMAL_COMPLETION); 2912 } 2913 2914 /* Open a new pipe. */ 2915 usbd_status 2916 uhci_open(usbd_pipe_handle pipe) 2917 { 2918 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2919 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2920 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2921 usbd_status err; 2922 int ival; 2923 2924 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2925 pipe, pipe->device->address, 2926 ed->bEndpointAddress, sc->sc_addr)); 2927 2928 upipe->aborting = 0; 2929 upipe->nexttoggle = 0; 2930 2931 if (pipe->device->address == sc->sc_addr) { 2932 switch (ed->bEndpointAddress) { 2933 case USB_CONTROL_ENDPOINT: 2934 pipe->methods = &uhci_root_ctrl_methods; 2935 break; 2936 case UE_DIR_IN | UHCI_INTR_ENDPT: 2937 pipe->methods = &uhci_root_intr_methods; 2938 break; 2939 default: 2940 return (USBD_INVAL); 2941 } 2942 } else { 2943 switch (ed->bmAttributes & UE_XFERTYPE) { 2944 case UE_CONTROL: 2945 pipe->methods = &uhci_device_ctrl_methods; 2946 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2947 if (upipe->u.ctl.sqh == NULL) 2948 goto bad; 2949 upipe->u.ctl.setup = uhci_alloc_std(sc); 2950 if (upipe->u.ctl.setup == NULL) { 2951 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2952 goto bad; 2953 } 2954 upipe->u.ctl.stat = uhci_alloc_std(sc); 2955 if (upipe->u.ctl.stat == NULL) { 2956 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2957 uhci_free_std(sc, upipe->u.ctl.setup); 2958 goto bad; 2959 } 2960 err = usb_allocmem(&sc->sc_bus, 2961 sizeof(usb_device_request_t), 2962 0, &upipe->u.ctl.reqdma); 2963 if (err) { 2964 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2965 uhci_free_std(sc, upipe->u.ctl.setup); 2966 uhci_free_std(sc, upipe->u.ctl.stat); 2967 goto bad; 2968 } 2969 break; 2970 case UE_INTERRUPT: 2971 pipe->methods = &uhci_device_intr_methods; 2972 ival = pipe->interval; 2973 if (ival == USBD_DEFAULT_INTERVAL) 2974 ival = ed->bInterval; 2975 return (uhci_device_setintr(sc, upipe, ival)); 2976 case UE_ISOCHRONOUS: 2977 pipe->methods = &uhci_device_isoc_methods; 2978 return (uhci_setup_isoc(pipe)); 2979 case UE_BULK: 2980 pipe->methods = &uhci_device_bulk_methods; 2981 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2982 if (upipe->u.bulk.sqh == NULL) 2983 goto bad; 2984 break; 2985 } 2986 } 2987 return (USBD_NORMAL_COMPLETION); 2988 2989 bad: 2990 return (USBD_NOMEM); 2991 } 2992 2993 /* 2994 * Data structures and routines to emulate the root hub. 2995 */ 2996 usb_device_descriptor_t uhci_devd = { 2997 USB_DEVICE_DESCRIPTOR_SIZE, 2998 UDESC_DEVICE, /* type */ 2999 {0x00, 0x01}, /* USB version */ 3000 UDCLASS_HUB, /* class */ 3001 UDSUBCLASS_HUB, /* subclass */ 3002 UDPROTO_FSHUB, /* protocol */ 3003 64, /* max packet */ 3004 {0},{0},{0x00,0x01}, /* device id */ 3005 1,2,0, /* string indicies */ 3006 1 /* # of configurations */ 3007 }; 3008 3009 usb_config_descriptor_t uhci_confd = { 3010 USB_CONFIG_DESCRIPTOR_SIZE, 3011 UDESC_CONFIG, 3012 {USB_CONFIG_DESCRIPTOR_SIZE + 3013 USB_INTERFACE_DESCRIPTOR_SIZE + 3014 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3015 1, 3016 1, 3017 0, 3018 UC_SELF_POWERED, 3019 0 /* max power */ 3020 }; 3021 3022 usb_interface_descriptor_t uhci_ifcd = { 3023 USB_INTERFACE_DESCRIPTOR_SIZE, 3024 UDESC_INTERFACE, 3025 0, 3026 0, 3027 1, 3028 UICLASS_HUB, 3029 UISUBCLASS_HUB, 3030 UIPROTO_FSHUB, 3031 0 3032 }; 3033 3034 usb_endpoint_descriptor_t uhci_endpd = { 3035 USB_ENDPOINT_DESCRIPTOR_SIZE, 3036 UDESC_ENDPOINT, 3037 UE_DIR_IN | UHCI_INTR_ENDPT, 3038 UE_INTERRUPT, 3039 {8}, 3040 255 3041 }; 3042 3043 usb_hub_descriptor_t uhci_hubd_piix = { 3044 USB_HUB_DESCRIPTOR_SIZE, 3045 UDESC_HUB, 3046 2, 3047 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3048 50, /* power on to power good */ 3049 0, 3050 { 0x00 }, /* both ports are removable */ 3051 }; 3052 3053 int 3054 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3055 { 3056 int i; 3057 3058 if (l == 0) 3059 return (0); 3060 p->bLength = 2 * strlen(s) + 2; 3061 if (l == 1) 3062 return (1); 3063 p->bDescriptorType = UDESC_STRING; 3064 l -= 2; 3065 for (i = 0; s[i] && l > 1; i++, l -= 2) 3066 USETW2(p->bString[i], 0, s[i]); 3067 return (2*i+2); 3068 } 3069 3070 /* 3071 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3072 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3073 * should not be used by the USB subsystem. As we cannot issue a 3074 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3075 * will be enabled as part of the reset. 3076 * 3077 * On the VT83C572, the port cannot be successfully enabled until the 3078 * outstanding "port enable change" and "connection status change" 3079 * events have been reset. 3080 */ 3081 Static usbd_status 3082 uhci_portreset(uhci_softc_t *sc, int index) 3083 { 3084 int lim, port, x; 3085 3086 if (index == 1) 3087 port = UHCI_PORTSC1; 3088 else if (index == 2) 3089 port = UHCI_PORTSC2; 3090 else 3091 return (USBD_IOERROR); 3092 3093 x = URWMASK(UREAD2(sc, port)); 3094 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3095 3096 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3097 3098 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3099 index, UREAD2(sc, port))); 3100 3101 x = URWMASK(UREAD2(sc, port)); 3102 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3103 3104 delay(100); 3105 3106 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3107 index, UREAD2(sc, port))); 3108 3109 x = URWMASK(UREAD2(sc, port)); 3110 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3111 3112 for (lim = 10; --lim > 0;) { 3113 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3114 3115 x = UREAD2(sc, port); 3116 3117 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3118 index, lim, x)); 3119 3120 if (!(x & UHCI_PORTSC_CCS)) { 3121 /* 3122 * No device is connected (or was disconnected 3123 * during reset). Consider the port reset. 3124 * The delay must be long enough to ensure on 3125 * the initial iteration that the device 3126 * connection will have been registered. 50ms 3127 * appears to be sufficient, but 20ms is not. 3128 */ 3129 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3130 index, lim)); 3131 break; 3132 } 3133 3134 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3135 /* 3136 * Port enabled changed and/or connection 3137 * status changed were set. Reset either or 3138 * both raised flags (by writing a 1 to that 3139 * bit), and wait again for state to settle. 3140 */ 3141 UWRITE2(sc, port, URWMASK(x) | 3142 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3143 continue; 3144 } 3145 3146 if (x & UHCI_PORTSC_PE) 3147 /* Port is enabled */ 3148 break; 3149 3150 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3151 } 3152 3153 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3154 index, UREAD2(sc, port))); 3155 3156 if (lim <= 0) { 3157 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3158 return (USBD_TIMEOUT); 3159 } 3160 3161 sc->sc_isreset = 1; 3162 return (USBD_NORMAL_COMPLETION); 3163 } 3164 3165 /* 3166 * Simulate a hardware hub by handling all the necessary requests. 3167 */ 3168 usbd_status 3169 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3170 { 3171 usbd_status err; 3172 3173 /* Insert last in queue. */ 3174 err = usb_insert_transfer(xfer); 3175 if (err) 3176 return (err); 3177 3178 /* 3179 * Pipe isn't running (otherwise err would be USBD_INPROG), 3180 * so start it first. 3181 */ 3182 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3183 } 3184 3185 usbd_status 3186 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3187 { 3188 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3189 usb_device_request_t *req; 3190 void *buf = NULL; 3191 int port, x; 3192 int s, len, value, index, status, change, l, totlen = 0; 3193 usb_port_status_t ps; 3194 usbd_status err; 3195 3196 if (sc->sc_dying) 3197 return (USBD_IOERROR); 3198 3199 #ifdef DIAGNOSTIC 3200 if (!(xfer->rqflags & URQ_REQUEST)) 3201 panic("uhci_root_ctrl_transfer: not a request"); 3202 #endif 3203 req = &xfer->request; 3204 3205 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3206 req->bmRequestType, req->bRequest)); 3207 3208 len = UGETW(req->wLength); 3209 value = UGETW(req->wValue); 3210 index = UGETW(req->wIndex); 3211 3212 if (len != 0) 3213 buf = KERNADDR(&xfer->dmabuf, 0); 3214 3215 #define C(x,y) ((x) | ((y) << 8)) 3216 switch(C(req->bRequest, req->bmRequestType)) { 3217 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3218 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3219 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3220 /* 3221 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3222 * for the integrated root hub. 3223 */ 3224 break; 3225 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3226 if (len > 0) { 3227 *(u_int8_t *)buf = sc->sc_conf; 3228 totlen = 1; 3229 } 3230 break; 3231 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3232 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3233 if (len == 0) 3234 break; 3235 switch(value >> 8) { 3236 case UDESC_DEVICE: 3237 if ((value & 0xff) != 0) { 3238 err = USBD_IOERROR; 3239 goto ret; 3240 } 3241 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3242 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3243 memcpy(buf, &uhci_devd, l); 3244 break; 3245 case UDESC_CONFIG: 3246 if ((value & 0xff) != 0) { 3247 err = USBD_IOERROR; 3248 goto ret; 3249 } 3250 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3251 memcpy(buf, &uhci_confd, l); 3252 buf = (char *)buf + l; 3253 len -= l; 3254 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3255 totlen += l; 3256 memcpy(buf, &uhci_ifcd, l); 3257 buf = (char *)buf + l; 3258 len -= l; 3259 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3260 totlen += l; 3261 memcpy(buf, &uhci_endpd, l); 3262 break; 3263 case UDESC_STRING: 3264 *(u_int8_t *)buf = 0; 3265 totlen = 1; 3266 switch (value & 0xff) { 3267 case 0: /* Language table */ 3268 totlen = uhci_str(buf, len, "\001"); 3269 break; 3270 case 1: /* Vendor */ 3271 totlen = uhci_str(buf, len, sc->sc_vendor); 3272 break; 3273 case 2: /* Product */ 3274 totlen = uhci_str(buf, len, "UHCI root hub"); 3275 break; 3276 } 3277 break; 3278 default: 3279 err = USBD_IOERROR; 3280 goto ret; 3281 } 3282 break; 3283 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3284 if (len > 0) { 3285 *(u_int8_t *)buf = 0; 3286 totlen = 1; 3287 } 3288 break; 3289 case C(UR_GET_STATUS, UT_READ_DEVICE): 3290 if (len > 1) { 3291 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3292 totlen = 2; 3293 } 3294 break; 3295 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3296 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3297 if (len > 1) { 3298 USETW(((usb_status_t *)buf)->wStatus, 0); 3299 totlen = 2; 3300 } 3301 break; 3302 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3303 if (value >= USB_MAX_DEVICES) { 3304 err = USBD_IOERROR; 3305 goto ret; 3306 } 3307 sc->sc_addr = value; 3308 break; 3309 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3310 if (value != 0 && value != 1) { 3311 err = USBD_IOERROR; 3312 goto ret; 3313 } 3314 sc->sc_conf = value; 3315 break; 3316 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3317 break; 3318 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3319 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3320 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3321 err = USBD_IOERROR; 3322 goto ret; 3323 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3324 break; 3325 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3326 break; 3327 /* Hub requests */ 3328 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3329 break; 3330 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3331 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3332 "port=%d feature=%d\n", 3333 index, value)); 3334 if (index == 1) 3335 port = UHCI_PORTSC1; 3336 else if (index == 2) 3337 port = UHCI_PORTSC2; 3338 else { 3339 err = USBD_IOERROR; 3340 goto ret; 3341 } 3342 switch(value) { 3343 case UHF_PORT_ENABLE: 3344 x = URWMASK(UREAD2(sc, port)); 3345 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3346 break; 3347 case UHF_PORT_SUSPEND: 3348 x = URWMASK(UREAD2(sc, port)); 3349 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3350 break; 3351 case UHF_PORT_RESET: 3352 x = URWMASK(UREAD2(sc, port)); 3353 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3354 break; 3355 case UHF_C_PORT_CONNECTION: 3356 x = URWMASK(UREAD2(sc, port)); 3357 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3358 break; 3359 case UHF_C_PORT_ENABLE: 3360 x = URWMASK(UREAD2(sc, port)); 3361 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3362 break; 3363 case UHF_C_PORT_OVER_CURRENT: 3364 x = URWMASK(UREAD2(sc, port)); 3365 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3366 break; 3367 case UHF_C_PORT_RESET: 3368 sc->sc_isreset = 0; 3369 err = USBD_NORMAL_COMPLETION; 3370 goto ret; 3371 case UHF_PORT_CONNECTION: 3372 case UHF_PORT_OVER_CURRENT: 3373 case UHF_PORT_POWER: 3374 case UHF_PORT_LOW_SPEED: 3375 case UHF_C_PORT_SUSPEND: 3376 default: 3377 err = USBD_IOERROR; 3378 goto ret; 3379 } 3380 break; 3381 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3382 if (index == 1) 3383 port = UHCI_PORTSC1; 3384 else if (index == 2) 3385 port = UHCI_PORTSC2; 3386 else { 3387 err = USBD_IOERROR; 3388 goto ret; 3389 } 3390 if (len > 0) { 3391 *(u_int8_t *)buf = 3392 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3393 UHCI_PORTSC_LS_SHIFT; 3394 totlen = 1; 3395 } 3396 break; 3397 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3398 if (len == 0) 3399 break; 3400 if ((value & 0xff) != 0) { 3401 err = USBD_IOERROR; 3402 goto ret; 3403 } 3404 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3405 totlen = l; 3406 memcpy(buf, &uhci_hubd_piix, l); 3407 break; 3408 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3409 if (len != 4) { 3410 err = USBD_IOERROR; 3411 goto ret; 3412 } 3413 memset(buf, 0, len); 3414 totlen = len; 3415 break; 3416 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3417 if (index == 1) 3418 port = UHCI_PORTSC1; 3419 else if (index == 2) 3420 port = UHCI_PORTSC2; 3421 else { 3422 err = USBD_IOERROR; 3423 goto ret; 3424 } 3425 if (len != 4) { 3426 err = USBD_IOERROR; 3427 goto ret; 3428 } 3429 x = UREAD2(sc, port); 3430 status = change = 0; 3431 if (x & UHCI_PORTSC_CCS) 3432 status |= UPS_CURRENT_CONNECT_STATUS; 3433 if (x & UHCI_PORTSC_CSC) 3434 change |= UPS_C_CONNECT_STATUS; 3435 if (x & UHCI_PORTSC_PE) 3436 status |= UPS_PORT_ENABLED; 3437 if (x & UHCI_PORTSC_POEDC) 3438 change |= UPS_C_PORT_ENABLED; 3439 if (x & UHCI_PORTSC_OCI) 3440 status |= UPS_OVERCURRENT_INDICATOR; 3441 if (x & UHCI_PORTSC_OCIC) 3442 change |= UPS_C_OVERCURRENT_INDICATOR; 3443 if (x & UHCI_PORTSC_SUSP) 3444 status |= UPS_SUSPEND; 3445 if (x & UHCI_PORTSC_LSDA) 3446 status |= UPS_LOW_SPEED; 3447 status |= UPS_PORT_POWER; 3448 if (sc->sc_isreset) 3449 change |= UPS_C_PORT_RESET; 3450 USETW(ps.wPortStatus, status); 3451 USETW(ps.wPortChange, change); 3452 l = min(len, sizeof ps); 3453 memcpy(buf, &ps, l); 3454 totlen = l; 3455 break; 3456 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3457 err = USBD_IOERROR; 3458 goto ret; 3459 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3460 break; 3461 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3462 if (index == 1) 3463 port = UHCI_PORTSC1; 3464 else if (index == 2) 3465 port = UHCI_PORTSC2; 3466 else { 3467 err = USBD_IOERROR; 3468 goto ret; 3469 } 3470 switch(value) { 3471 case UHF_PORT_ENABLE: 3472 x = URWMASK(UREAD2(sc, port)); 3473 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3474 break; 3475 case UHF_PORT_SUSPEND: 3476 x = URWMASK(UREAD2(sc, port)); 3477 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3478 break; 3479 case UHF_PORT_RESET: 3480 err = uhci_portreset(sc, index); 3481 goto ret; 3482 case UHF_PORT_POWER: 3483 /* Pretend we turned on power */ 3484 err = USBD_NORMAL_COMPLETION; 3485 goto ret; 3486 case UHF_C_PORT_CONNECTION: 3487 case UHF_C_PORT_ENABLE: 3488 case UHF_C_PORT_OVER_CURRENT: 3489 case UHF_PORT_CONNECTION: 3490 case UHF_PORT_OVER_CURRENT: 3491 case UHF_PORT_LOW_SPEED: 3492 case UHF_C_PORT_SUSPEND: 3493 case UHF_C_PORT_RESET: 3494 default: 3495 err = USBD_IOERROR; 3496 goto ret; 3497 } 3498 break; 3499 default: 3500 err = USBD_IOERROR; 3501 goto ret; 3502 } 3503 xfer->actlen = totlen; 3504 err = USBD_NORMAL_COMPLETION; 3505 ret: 3506 xfer->status = err; 3507 s = splusb(); 3508 usb_transfer_complete(xfer); 3509 splx(s); 3510 return (USBD_IN_PROGRESS); 3511 } 3512 3513 /* Abort a root control request. */ 3514 void 3515 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3516 { 3517 /* Nothing to do, all transfers are synchronous. */ 3518 } 3519 3520 /* Close the root pipe. */ 3521 void 3522 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3523 { 3524 DPRINTF(("uhci_root_ctrl_close\n")); 3525 } 3526 3527 /* Abort a root interrupt request. */ 3528 void 3529 uhci_root_intr_abort(usbd_xfer_handle xfer) 3530 { 3531 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3532 3533 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3534 sc->sc_intr_xfer = NULL; 3535 3536 if (xfer->pipe->intrxfer == xfer) { 3537 DPRINTF(("uhci_root_intr_abort: remove\n")); 3538 xfer->pipe->intrxfer = 0; 3539 } 3540 xfer->status = USBD_CANCELLED; 3541 #ifdef DIAGNOSTIC 3542 UXFER(xfer)->iinfo.isdone = 1; 3543 #endif 3544 usb_transfer_complete(xfer); 3545 } 3546 3547 usbd_status 3548 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3549 { 3550 usbd_status err; 3551 3552 /* Insert last in queue. */ 3553 err = usb_insert_transfer(xfer); 3554 if (err) 3555 return (err); 3556 3557 /* 3558 * Pipe isn't running (otherwise err would be USBD_INPROG), 3559 * start first 3560 */ 3561 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3562 } 3563 3564 /* Start a transfer on the root interrupt pipe */ 3565 usbd_status 3566 uhci_root_intr_start(usbd_xfer_handle xfer) 3567 { 3568 usbd_pipe_handle pipe = xfer->pipe; 3569 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3570 unsigned int ival; 3571 3572 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3573 xfer, xfer->length, xfer->flags)); 3574 3575 if (sc->sc_dying) 3576 return (USBD_IOERROR); 3577 3578 /* XXX temporary variable needed to avoid gcc3 warning */ 3579 ival = xfer->pipe->endpoint->edesc->bInterval; 3580 sc->sc_ival = mstohz(ival); 3581 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3582 sc->sc_intr_xfer = xfer; 3583 return (USBD_IN_PROGRESS); 3584 } 3585 3586 /* Close the root interrupt pipe. */ 3587 void 3588 uhci_root_intr_close(usbd_pipe_handle pipe) 3589 { 3590 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3591 3592 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3593 sc->sc_intr_xfer = NULL; 3594 DPRINTF(("uhci_root_intr_close\n")); 3595 } 3596
Indexes created Tue Sep 23 02:09:52 GMT 2025