uhci.c revision 1.203
1 /* $NetBSD: uhci.c,v 1.203 2006/10/12 01:31:59 christos 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 1.203 2006/10/12 01:31:59 christos Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data stored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 int isread; 149 uhci_soft_qh_t **qhs; 150 } intr; 151 /* Bulk pipe */ 152 struct { 153 uhci_soft_qh_t *sqh; 154 u_int length; 155 int isread; 156 } bulk; 157 /* Iso pipe */ 158 struct iso { 159 uhci_soft_td_t **stds; 160 int next, inuse; 161 } iso; 162 } u; 163 }; 164 165 Static void uhci_globalreset(uhci_softc_t *); 166 Static usbd_status uhci_portreset(uhci_softc_t*, int); 167 Static void uhci_reset(uhci_softc_t *); 168 Static void uhci_shutdown(void *v); 169 Static void uhci_power(int, void *); 170 Static usbd_status uhci_run(uhci_softc_t *, int run); 171 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 172 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 173 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 174 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 175 #if 0 176 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 177 uhci_intr_info_t *); 178 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 179 #endif 180 181 Static void uhci_free_std_chain(uhci_softc_t *, 182 uhci_soft_td_t *, uhci_soft_td_t *); 183 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 184 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 185 uhci_soft_td_t **, uhci_soft_td_t **); 186 Static void uhci_poll_hub(void *); 187 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 188 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 189 Static void uhci_idone(uhci_intr_info_t *); 190 191 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 192 193 Static void uhci_timeout(void *); 194 Static void uhci_timeout_task(void *); 195 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 198 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 200 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 201 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 202 Static void uhci_add_loop(uhci_softc_t *sc); 203 Static void uhci_rem_loop(uhci_softc_t *sc); 204 205 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 206 Static void uhci_device_isoc_enter(usbd_xfer_handle); 207 208 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 209 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 210 211 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 212 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 213 214 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 216 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 217 Static void uhci_device_ctrl_close(usbd_pipe_handle); 218 Static void uhci_device_ctrl_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 222 Static void uhci_device_intr_abort(usbd_xfer_handle); 223 Static void uhci_device_intr_close(usbd_pipe_handle); 224 Static void uhci_device_intr_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 228 Static void uhci_device_bulk_abort(usbd_xfer_handle); 229 Static void uhci_device_bulk_close(usbd_pipe_handle); 230 Static void uhci_device_bulk_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 233 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 234 Static void uhci_device_isoc_abort(usbd_xfer_handle); 235 Static void uhci_device_isoc_close(usbd_pipe_handle); 236 Static void uhci_device_isoc_done(usbd_xfer_handle); 237 238 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 239 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 240 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 241 Static void uhci_root_ctrl_close(usbd_pipe_handle); 242 Static void uhci_root_ctrl_done(usbd_xfer_handle); 243 244 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 245 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 246 Static void uhci_root_intr_abort(usbd_xfer_handle); 247 Static void uhci_root_intr_close(usbd_pipe_handle); 248 Static void uhci_root_intr_done(usbd_xfer_handle); 249 250 Static usbd_status uhci_open(usbd_pipe_handle); 251 Static void uhci_poll(struct usbd_bus *); 252 Static void uhci_softintr(void *); 253 254 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 255 256 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 258 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 259 struct uhci_pipe *pipe, int ival); 260 261 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 262 Static void uhci_noop(usbd_pipe_handle pipe); 263 264 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 265 uhci_soft_qh_t *); 266 267 #ifdef UHCI_DEBUG 268 Static void uhci_dump_all(uhci_softc_t *); 269 Static void uhci_dumpregs(uhci_softc_t *); 270 Static void uhci_dump_qhs(uhci_soft_qh_t *); 271 Static void uhci_dump_qh(uhci_soft_qh_t *); 272 Static void uhci_dump_tds(uhci_soft_td_t *); 273 Static void uhci_dump_td(uhci_soft_td_t *); 274 Static void uhci_dump_ii(uhci_intr_info_t *ii); 275 void uhci_dump(void); 276 #endif 277 278 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 279 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 280 #define UWRITE1(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE2(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UWRITE4(sc, r, x) \ 287 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 288 } while (/*CONSTCOND*/0) 289 static __inline uint8_t 290 UREAD1(uhci_softc_t *sc, bus_size_t r) 291 { 292 293 UBARR(sc); 294 return bus_space_read_1(sc->iot, sc->ioh, r); 295 } 296 297 static __inline uint16_t 298 UREAD2(uhci_softc_t *sc, bus_size_t r) 299 { 300 301 UBARR(sc); 302 return bus_space_read_2(sc->iot, sc->ioh, r); 303 } 304 305 static __inline uint32_t 306 UREAD4(uhci_softc_t *sc, bus_size_t r) 307 { 308 309 UBARR(sc); 310 return bus_space_read_4(sc->iot, sc->ioh, r); 311 } 312 313 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 314 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 315 316 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 317 318 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 319 320 #define UHCI_INTR_ENDPT 1 321 322 struct usbd_bus_methods uhci_bus_methods = { 323 uhci_open, 324 uhci_softintr, 325 uhci_poll, 326 uhci_allocm, 327 uhci_freem, 328 uhci_allocx, 329 uhci_freex, 330 }; 331 332 struct usbd_pipe_methods uhci_root_ctrl_methods = { 333 uhci_root_ctrl_transfer, 334 uhci_root_ctrl_start, 335 uhci_root_ctrl_abort, 336 uhci_root_ctrl_close, 337 uhci_noop, 338 uhci_root_ctrl_done, 339 }; 340 341 struct usbd_pipe_methods uhci_root_intr_methods = { 342 uhci_root_intr_transfer, 343 uhci_root_intr_start, 344 uhci_root_intr_abort, 345 uhci_root_intr_close, 346 uhci_noop, 347 uhci_root_intr_done, 348 }; 349 350 struct usbd_pipe_methods uhci_device_ctrl_methods = { 351 uhci_device_ctrl_transfer, 352 uhci_device_ctrl_start, 353 uhci_device_ctrl_abort, 354 uhci_device_ctrl_close, 355 uhci_noop, 356 uhci_device_ctrl_done, 357 }; 358 359 struct usbd_pipe_methods uhci_device_intr_methods = { 360 uhci_device_intr_transfer, 361 uhci_device_intr_start, 362 uhci_device_intr_abort, 363 uhci_device_intr_close, 364 uhci_device_clear_toggle, 365 uhci_device_intr_done, 366 }; 367 368 struct usbd_pipe_methods uhci_device_bulk_methods = { 369 uhci_device_bulk_transfer, 370 uhci_device_bulk_start, 371 uhci_device_bulk_abort, 372 uhci_device_bulk_close, 373 uhci_device_clear_toggle, 374 uhci_device_bulk_done, 375 }; 376 377 struct usbd_pipe_methods uhci_device_isoc_methods = { 378 uhci_device_isoc_transfer, 379 uhci_device_isoc_start, 380 uhci_device_isoc_abort, 381 uhci_device_isoc_close, 382 uhci_noop, 383 uhci_device_isoc_done, 384 }; 385 386 #define uhci_add_intr_info(sc, ii) \ 387 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 388 #define uhci_del_intr_info(ii) \ 389 do { \ 390 LIST_REMOVE((ii), list); \ 391 (ii)->list.le_prev = NULL; \ 392 } while (0) 393 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 394 395 Static inline uhci_soft_qh_t * 396 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 397 { 398 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 399 400 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 401 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 402 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 403 printf("uhci_find_prev_qh: QH not found\n"); 404 return (NULL); 405 } 406 #endif 407 } 408 return (pqh); 409 } 410 411 void 412 uhci_globalreset(uhci_softc_t *sc) 413 { 414 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 415 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 416 UHCICMD(sc, 0); /* do nothing */ 417 } 418 419 usbd_status 420 uhci_init(uhci_softc_t *sc) 421 { 422 usbd_status err; 423 int i, j; 424 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 425 uhci_soft_td_t *std; 426 427 DPRINTFN(1,("uhci_init: start\n")); 428 429 #ifdef UHCI_DEBUG 430 thesc = sc; 431 432 if (uhcidebug > 2) 433 uhci_dumpregs(sc); 434 #endif 435 436 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 437 uhci_globalreset(sc); /* reset the controller */ 438 uhci_reset(sc); 439 440 #ifdef __NetBSD__ 441 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 442 USB_MEM_RESERVE); 443 #endif 444 445 /* Allocate and initialize real frame array. */ 446 err = usb_allocmem(&sc->sc_bus, 447 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 448 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 449 if (err) 450 return (err); 451 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 452 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 453 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 454 455 /* 456 * Allocate a TD, inactive, that hangs from the last QH. 457 * This is to avoid a bug in the PIIX that makes it run berserk 458 * otherwise. 459 */ 460 std = uhci_alloc_std(sc); 461 if (std == NULL) 462 return (USBD_NOMEM); 463 std->link.std = NULL; 464 std->td.td_link = htole32(UHCI_PTR_T); 465 std->td.td_status = htole32(0); /* inactive */ 466 std->td.td_token = htole32(0); 467 std->td.td_buffer = htole32(0); 468 469 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 470 lsqh = uhci_alloc_sqh(sc); 471 if (lsqh == NULL) 472 return (USBD_NOMEM); 473 lsqh->hlink = NULL; 474 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 475 lsqh->elink = std; 476 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 477 sc->sc_last_qh = lsqh; 478 479 /* Allocate the dummy QH where bulk traffic will be queued. */ 480 bsqh = uhci_alloc_sqh(sc); 481 if (bsqh == NULL) 482 return (USBD_NOMEM); 483 bsqh->hlink = lsqh; 484 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 485 bsqh->elink = NULL; 486 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 487 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 488 489 /* Allocate dummy QH where high speed control traffic will be queued. */ 490 chsqh = uhci_alloc_sqh(sc); 491 if (chsqh == NULL) 492 return (USBD_NOMEM); 493 chsqh->hlink = bsqh; 494 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 495 chsqh->elink = NULL; 496 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 497 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 498 499 /* Allocate dummy QH where control traffic will be queued. */ 500 clsqh = uhci_alloc_sqh(sc); 501 if (clsqh == NULL) 502 return (USBD_NOMEM); 503 clsqh->hlink = bsqh; 504 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 505 clsqh->elink = NULL; 506 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 507 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 508 509 /* 510 * Make all (virtual) frame list pointers point to the interrupt 511 * queue heads and the interrupt queue heads at the control 512 * queue head and point the physical frame list to the virtual. 513 */ 514 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 515 std = uhci_alloc_std(sc); 516 sqh = uhci_alloc_sqh(sc); 517 if (std == NULL || sqh == NULL) 518 return (USBD_NOMEM); 519 std->link.sqh = sqh; 520 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 521 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 522 std->td.td_token = htole32(0); 523 std->td.td_buffer = htole32(0); 524 sqh->hlink = clsqh; 525 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 526 sqh->elink = NULL; 527 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 528 sc->sc_vframes[i].htd = std; 529 sc->sc_vframes[i].etd = std; 530 sc->sc_vframes[i].hqh = sqh; 531 sc->sc_vframes[i].eqh = sqh; 532 for (j = i; 533 j < UHCI_FRAMELIST_COUNT; 534 j += UHCI_VFRAMELIST_COUNT) 535 sc->sc_pframes[j] = htole32(std->physaddr); 536 } 537 538 LIST_INIT(&sc->sc_intrhead); 539 540 SIMPLEQ_INIT(&sc->sc_free_xfers); 541 542 usb_callout_init(sc->sc_poll_handle); 543 544 /* Set up the bus struct. */ 545 sc->sc_bus.methods = &uhci_bus_methods; 546 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 547 548 #if defined(__NetBSD__) || defined(__OpenBSD__) 549 sc->sc_suspend = PWR_RESUME; 550 sc->sc_powerhook = powerhook_establish(USBDEVNAME(sc->sc_bus.bdev), 551 uhci_power, sc); 552 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 553 #endif 554 555 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 556 557 DPRINTFN(1,("uhci_init: enabling\n")); 558 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 559 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 560 561 return (uhci_run(sc, 1)); /* and here we go... */ 562 } 563 564 #if defined(__NetBSD__) || defined(__OpenBSD__) 565 int 566 uhci_activate(device_ptr_t self, enum devact act) 567 { 568 struct uhci_softc *sc = (struct uhci_softc *)self; 569 int rv = 0; 570 571 switch (act) { 572 case DVACT_ACTIVATE: 573 return (EOPNOTSUPP); 574 575 case DVACT_DEACTIVATE: 576 if (sc->sc_child != NULL) 577 rv = config_deactivate(sc->sc_child); 578 break; 579 } 580 return (rv); 581 } 582 583 int 584 uhci_detach(struct uhci_softc *sc, int flags) 585 { 586 usbd_xfer_handle xfer; 587 int rv = 0; 588 589 if (sc->sc_child != NULL) 590 rv = config_detach(sc->sc_child, flags); 591 592 if (rv != 0) 593 return (rv); 594 595 #if defined(__NetBSD__) || defined(__OpenBSD__) 596 powerhook_disestablish(sc->sc_powerhook); 597 shutdownhook_disestablish(sc->sc_shutdownhook); 598 #endif 599 600 /* Free all xfers associated with this HC. */ 601 for (;;) { 602 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 603 if (xfer == NULL) 604 break; 605 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 606 free(xfer, M_USB); 607 } 608 609 /* XXX free other data structures XXX */ 610 611 return (rv); 612 } 613 #endif 614 615 usbd_status 616 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 617 { 618 struct uhci_softc *sc = (struct uhci_softc *)bus; 619 usbd_status status; 620 u_int32_t n; 621 622 /* 623 * XXX 624 * Since we are allocating a buffer we can assume that we will 625 * need TDs for it. Since we don't want to allocate those from 626 * an interrupt context, we allocate them here and free them again. 627 * This is no guarantee that we'll get the TDs next time... 628 */ 629 n = size / 8; 630 if (n > 16) { 631 u_int32_t i; 632 uhci_soft_td_t **stds; 633 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 634 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 635 M_WAITOK|M_ZERO); 636 for(i=0; i < n; i++) 637 stds[i] = uhci_alloc_std(sc); 638 for(i=0; i < n; i++) 639 if (stds[i] != NULL) 640 uhci_free_std(sc, stds[i]); 641 free(stds, M_TEMP); 642 } 643 644 645 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 646 #ifdef __NetBSD__ 647 if (status == USBD_NOMEM) 648 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 649 #endif 650 return status; 651 } 652 653 void 654 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 655 { 656 #ifdef __NetBSD__ 657 if (dma->block->flags & USB_DMA_RESERVE) { 658 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 659 dma); 660 return; 661 } 662 #endif 663 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 664 } 665 666 usbd_xfer_handle 667 uhci_allocx(struct usbd_bus *bus) 668 { 669 struct uhci_softc *sc = (struct uhci_softc *)bus; 670 usbd_xfer_handle xfer; 671 672 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 673 if (xfer != NULL) { 674 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 675 #ifdef DIAGNOSTIC 676 if (xfer->busy_free != XFER_FREE) { 677 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 678 xfer->busy_free); 679 } 680 #endif 681 } else { 682 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 683 } 684 if (xfer != NULL) { 685 memset(xfer, 0, sizeof (struct uhci_xfer)); 686 UXFER(xfer)->iinfo.sc = sc; 687 #ifdef DIAGNOSTIC 688 UXFER(xfer)->iinfo.isdone = 1; 689 xfer->busy_free = XFER_BUSY; 690 #endif 691 } 692 return (xfer); 693 } 694 695 void 696 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 697 { 698 struct uhci_softc *sc = (struct uhci_softc *)bus; 699 700 #ifdef DIAGNOSTIC 701 if (xfer->busy_free != XFER_BUSY) { 702 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 703 xfer->busy_free); 704 return; 705 } 706 xfer->busy_free = XFER_FREE; 707 if (!UXFER(xfer)->iinfo.isdone) { 708 printf("uhci_freex: !isdone\n"); 709 return; 710 } 711 #endif 712 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 713 } 714 715 /* 716 * Shut down the controller when the system is going down. 717 */ 718 void 719 uhci_shutdown(void *v) 720 { 721 uhci_softc_t *sc = v; 722 int s; 723 724 DPRINTF(("uhci_shutdown: stopping the HC\n")); 725 726 /* 727 * Use polling mode to prevent the interrupts shutting 728 * us down before we shut them down. 729 */ 730 s = splhardusb(); 731 sc->sc_bus.use_polling++; 732 uhci_run(sc, 0); /* stop the controller */ 733 sc->sc_bus.use_polling--; 734 splx(s); 735 } 736 737 /* 738 * Handle suspend/resume. 739 * 740 * We need to switch to polling mode here, because this routine is 741 * called from an interrupt context. This is all right since we 742 * are almost suspended anyway. 743 */ 744 void 745 uhci_power(int why, void *v) 746 { 747 uhci_softc_t *sc = v; 748 int cmd; 749 int s; 750 751 s = splhardusb(); 752 cmd = UREAD2(sc, UHCI_CMD); 753 754 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 755 sc, why, sc->sc_suspend, cmd)); 756 757 switch (why) { 758 case PWR_SUSPEND: 759 case PWR_STANDBY: 760 #ifdef UHCI_DEBUG 761 if (uhcidebug > 2) 762 uhci_dumpregs(sc); 763 #endif 764 if (sc->sc_intr_xfer != NULL) 765 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 766 sc->sc_intr_xfer); 767 sc->sc_bus.use_polling++; 768 uhci_run(sc, 0); /* stop the controller */ 769 770 /* save some state if BIOS doesn't */ 771 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 772 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 773 774 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 775 776 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 777 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 778 sc->sc_suspend = why; 779 sc->sc_bus.use_polling--; 780 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 781 break; 782 case PWR_RESUME: 783 #ifdef DIAGNOSTIC 784 if (sc->sc_suspend == PWR_RESUME) 785 printf("uhci_power: weird, resume without suspend.\n"); 786 #endif 787 sc->sc_bus.use_polling++; 788 sc->sc_suspend = why; 789 if (cmd & UHCI_CMD_RS) 790 uhci_run(sc, 0); /* in case BIOS has started it */ 791 792 /* restore saved state */ 793 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 794 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 795 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 796 797 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 798 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 799 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 800 UHCICMD(sc, UHCI_CMD_MAXP); 801 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 802 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 803 uhci_run(sc, 1); /* and start traffic again */ 804 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 805 sc->sc_bus.use_polling--; 806 if (sc->sc_intr_xfer != NULL) 807 usb_callout(sc->sc_poll_handle, sc->sc_ival, 808 uhci_poll_hub, sc->sc_intr_xfer); 809 #ifdef UHCI_DEBUG 810 if (uhcidebug > 2) 811 uhci_dumpregs(sc); 812 #endif 813 break; 814 case PWR_SOFTSUSPEND: 815 case PWR_SOFTSTANDBY: 816 case PWR_SOFTRESUME: 817 break; 818 } 819 splx(s); 820 } 821 822 #ifdef UHCI_DEBUG 823 Static void 824 uhci_dumpregs(uhci_softc_t *sc) 825 { 826 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 827 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 828 USBDEVNAME(sc->sc_bus.bdev), 829 UREAD2(sc, UHCI_CMD), 830 UREAD2(sc, UHCI_STS), 831 UREAD2(sc, UHCI_INTR), 832 UREAD2(sc, UHCI_FRNUM), 833 UREAD4(sc, UHCI_FLBASEADDR), 834 UREAD1(sc, UHCI_SOF), 835 UREAD2(sc, UHCI_PORTSC1), 836 UREAD2(sc, UHCI_PORTSC2))); 837 } 838 839 void 840 uhci_dump_td(uhci_soft_td_t *p) 841 { 842 char sbuf[128], sbuf2[128]; 843 844 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 845 "token=0x%08lx buffer=0x%08lx\n", 846 p, (long)p->physaddr, 847 (long)le32toh(p->td.td_link), 848 (long)le32toh(p->td.td_status), 849 (long)le32toh(p->td.td_token), 850 (long)le32toh(p->td.td_buffer))); 851 852 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 853 sbuf, sizeof(sbuf)); 854 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 855 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 856 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 857 sbuf2, sizeof(sbuf2)); 858 859 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 860 "D=%d,maxlen=%d\n", sbuf, sbuf2, 861 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 862 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 863 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 864 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 865 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 866 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 867 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 868 } 869 870 void 871 uhci_dump_qh(uhci_soft_qh_t *sqh) 872 { 873 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 874 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 875 le32toh(sqh->qh.qh_elink))); 876 } 877 878 879 #if 1 880 void 881 uhci_dump(void) 882 { 883 uhci_dump_all(thesc); 884 } 885 #endif 886 887 void 888 uhci_dump_all(uhci_softc_t *sc) 889 { 890 uhci_dumpregs(sc); 891 printf("intrs=%d\n", sc->sc_bus.no_intrs); 892 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 893 uhci_dump_qh(sc->sc_lctl_start); 894 } 895 896 897 void 898 uhci_dump_qhs(uhci_soft_qh_t *sqh) 899 { 900 uhci_dump_qh(sqh); 901 902 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 903 * Traverses sideways first, then down. 904 * 905 * QH1 906 * QH2 907 * No QH 908 * TD2.1 909 * TD2.2 910 * TD1.1 911 * etc. 912 * 913 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 914 */ 915 916 917 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 918 uhci_dump_qhs(sqh->hlink); 919 else 920 DPRINTF(("No QH\n")); 921 922 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 923 uhci_dump_tds(sqh->elink); 924 else 925 DPRINTF(("No TD\n")); 926 } 927 928 void 929 uhci_dump_tds(uhci_soft_td_t *std) 930 { 931 uhci_soft_td_t *td; 932 933 for(td = std; td != NULL; td = td->link.std) { 934 uhci_dump_td(td); 935 936 /* Check whether the link pointer in this TD marks 937 * the link pointer as end of queue. This avoids 938 * printing the free list in case the queue/TD has 939 * already been moved there (seatbelt). 940 */ 941 if (le32toh(td->td.td_link) & UHCI_PTR_T || 942 le32toh(td->td.td_link) == 0) 943 break; 944 } 945 } 946 947 Static void 948 uhci_dump_ii(uhci_intr_info_t *ii) 949 { 950 usbd_pipe_handle pipe; 951 usb_endpoint_descriptor_t *ed; 952 usbd_device_handle dev; 953 954 #ifdef DIAGNOSTIC 955 #define DONE ii->isdone 956 #else 957 #define DONE 0 958 #endif 959 if (ii == NULL) { 960 printf("ii NULL\n"); 961 return; 962 } 963 if (ii->xfer == NULL) { 964 printf("ii %p: done=%d xfer=NULL\n", 965 ii, DONE); 966 return; 967 } 968 pipe = ii->xfer->pipe; 969 if (pipe == NULL) { 970 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 971 ii, DONE, ii->xfer); 972 return; 973 } 974 if (pipe->endpoint == NULL) { 975 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 976 ii, DONE, ii->xfer, pipe); 977 return; 978 } 979 if (pipe->device == NULL) { 980 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 981 ii, DONE, ii->xfer, pipe); 982 return; 983 } 984 ed = pipe->endpoint->edesc; 985 dev = pipe->device; 986 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 987 ii, DONE, ii->xfer, dev, 988 UGETW(dev->ddesc.idVendor), 989 UGETW(dev->ddesc.idProduct), 990 dev->address, pipe, 991 ed->bEndpointAddress, ed->bmAttributes); 992 #undef DONE 993 } 994 995 void uhci_dump_iis(struct uhci_softc *sc); 996 void 997 uhci_dump_iis(struct uhci_softc *sc) 998 { 999 uhci_intr_info_t *ii; 1000 1001 printf("intr_info list:\n"); 1002 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1003 uhci_dump_ii(ii); 1004 } 1005 1006 void iidump(void); 1007 void iidump(void) { uhci_dump_iis(thesc); } 1008 1009 #endif 1010 1011 /* 1012 * This routine is executed periodically and simulates interrupts 1013 * from the root controller interrupt pipe for port status change. 1014 */ 1015 void 1016 uhci_poll_hub(void *addr) 1017 { 1018 usbd_xfer_handle xfer = addr; 1019 usbd_pipe_handle pipe = xfer->pipe; 1020 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1021 int s; 1022 u_char *p; 1023 1024 DPRINTFN(20, ("uhci_poll_hub\n")); 1025 1026 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1027 1028 p = KERNADDR(&xfer->dmabuf, 0); 1029 p[0] = 0; 1030 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1031 p[0] |= 1<<1; 1032 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1033 p[0] |= 1<<2; 1034 if (p[0] == 0) 1035 /* No change, try again in a while */ 1036 return; 1037 1038 xfer->actlen = 1; 1039 xfer->status = USBD_NORMAL_COMPLETION; 1040 s = splusb(); 1041 xfer->device->bus->intr_context++; 1042 usb_transfer_complete(xfer); 1043 xfer->device->bus->intr_context--; 1044 splx(s); 1045 } 1046 1047 void 1048 uhci_root_intr_done(usbd_xfer_handle xfer __unused) 1049 { 1050 } 1051 1052 void 1053 uhci_root_ctrl_done(usbd_xfer_handle xfer __unused) 1054 { 1055 } 1056 1057 /* 1058 * Let the last QH loop back to the high speed control transfer QH. 1059 * This is what intel calls "bandwidth reclamation" and improves 1060 * USB performance a lot for some devices. 1061 * If we are already looping, just count it. 1062 */ 1063 void 1064 uhci_add_loop(uhci_softc_t *sc) { 1065 #ifdef UHCI_DEBUG 1066 if (uhcinoloop) 1067 return; 1068 #endif 1069 if (++sc->sc_loops == 1) { 1070 DPRINTFN(5,("uhci_start_loop: add\n")); 1071 /* Note, we don't loop back the soft pointer. */ 1072 sc->sc_last_qh->qh.qh_hlink = 1073 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1074 } 1075 } 1076 1077 void 1078 uhci_rem_loop(uhci_softc_t *sc) { 1079 #ifdef UHCI_DEBUG 1080 if (uhcinoloop) 1081 return; 1082 #endif 1083 if (--sc->sc_loops == 0) { 1084 DPRINTFN(5,("uhci_end_loop: remove\n")); 1085 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1086 } 1087 } 1088 1089 /* Add high speed control QH, called at splusb(). */ 1090 void 1091 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1092 { 1093 uhci_soft_qh_t *eqh; 1094 1095 SPLUSBCHECK; 1096 1097 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1098 eqh = sc->sc_hctl_end; 1099 sqh->hlink = eqh->hlink; 1100 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1101 eqh->hlink = sqh; 1102 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1103 sc->sc_hctl_end = sqh; 1104 #ifdef UHCI_CTL_LOOP 1105 uhci_add_loop(sc); 1106 #endif 1107 } 1108 1109 /* Remove high speed control QH, called at splusb(). */ 1110 void 1111 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1112 { 1113 uhci_soft_qh_t *pqh; 1114 1115 SPLUSBCHECK; 1116 1117 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1118 #ifdef UHCI_CTL_LOOP 1119 uhci_rem_loop(sc); 1120 #endif 1121 /* 1122 * The T bit should be set in the elink of the QH so that the HC 1123 * doesn't follow the pointer. This condition may fail if the 1124 * the transferred packet was short so that the QH still points 1125 * at the last used TD. 1126 * In this case we set the T bit and wait a little for the HC 1127 * to stop looking at the TD. 1128 */ 1129 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1130 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1131 delay(UHCI_QH_REMOVE_DELAY); 1132 } 1133 1134 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1135 pqh->hlink = sqh->hlink; 1136 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1137 delay(UHCI_QH_REMOVE_DELAY); 1138 if (sc->sc_hctl_end == sqh) 1139 sc->sc_hctl_end = pqh; 1140 } 1141 1142 /* Add low speed control QH, called at splusb(). */ 1143 void 1144 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1145 { 1146 uhci_soft_qh_t *eqh; 1147 1148 SPLUSBCHECK; 1149 1150 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1151 eqh = sc->sc_lctl_end; 1152 sqh->hlink = eqh->hlink; 1153 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1154 eqh->hlink = sqh; 1155 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1156 sc->sc_lctl_end = sqh; 1157 } 1158 1159 /* Remove low speed control QH, called at splusb(). */ 1160 void 1161 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1162 { 1163 uhci_soft_qh_t *pqh; 1164 1165 SPLUSBCHECK; 1166 1167 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1168 /* See comment in uhci_remove_hs_ctrl() */ 1169 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1170 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1171 delay(UHCI_QH_REMOVE_DELAY); 1172 } 1173 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1174 pqh->hlink = sqh->hlink; 1175 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1176 delay(UHCI_QH_REMOVE_DELAY); 1177 if (sc->sc_lctl_end == sqh) 1178 sc->sc_lctl_end = pqh; 1179 } 1180 1181 /* Add bulk QH, called at splusb(). */ 1182 void 1183 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1184 { 1185 uhci_soft_qh_t *eqh; 1186 1187 SPLUSBCHECK; 1188 1189 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1190 eqh = sc->sc_bulk_end; 1191 sqh->hlink = eqh->hlink; 1192 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1193 eqh->hlink = sqh; 1194 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1195 sc->sc_bulk_end = sqh; 1196 uhci_add_loop(sc); 1197 } 1198 1199 /* Remove bulk QH, called at splusb(). */ 1200 void 1201 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1202 { 1203 uhci_soft_qh_t *pqh; 1204 1205 SPLUSBCHECK; 1206 1207 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1208 uhci_rem_loop(sc); 1209 /* See comment in uhci_remove_hs_ctrl() */ 1210 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1211 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1212 delay(UHCI_QH_REMOVE_DELAY); 1213 } 1214 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1215 pqh->hlink = sqh->hlink; 1216 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1217 delay(UHCI_QH_REMOVE_DELAY); 1218 if (sc->sc_bulk_end == sqh) 1219 sc->sc_bulk_end = pqh; 1220 } 1221 1222 Static int uhci_intr1(uhci_softc_t *); 1223 1224 int 1225 uhci_intr(void *arg) 1226 { 1227 uhci_softc_t *sc = arg; 1228 1229 if (sc->sc_dying) 1230 return (0); 1231 1232 if (sc->sc_bus.use_polling) { 1233 #ifdef DIAGNOSTIC 1234 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1235 #endif 1236 return (0); 1237 } 1238 1239 return (uhci_intr1(sc)); 1240 } 1241 1242 int 1243 uhci_intr1(uhci_softc_t *sc) 1244 { 1245 int status; 1246 int ack; 1247 1248 #ifdef UHCI_DEBUG 1249 if (uhcidebug > 15) { 1250 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1251 uhci_dumpregs(sc); 1252 } 1253 #endif 1254 1255 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1256 if (status == 0) /* The interrupt was not for us. */ 1257 return (0); 1258 1259 if (sc->sc_suspend != PWR_RESUME) { 1260 #ifdef DIAGNOSTIC 1261 printf("%s: interrupt while not operating ignored\n", 1262 USBDEVNAME(sc->sc_bus.bdev)); 1263 #endif 1264 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1265 return (0); 1266 } 1267 1268 ack = 0; 1269 if (status & UHCI_STS_USBINT) 1270 ack |= UHCI_STS_USBINT; 1271 if (status & UHCI_STS_USBEI) 1272 ack |= UHCI_STS_USBEI; 1273 if (status & UHCI_STS_RD) { 1274 ack |= UHCI_STS_RD; 1275 #ifdef UHCI_DEBUG 1276 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1277 #endif 1278 } 1279 if (status & UHCI_STS_HSE) { 1280 ack |= UHCI_STS_HSE; 1281 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1282 } 1283 if (status & UHCI_STS_HCPE) { 1284 ack |= UHCI_STS_HCPE; 1285 printf("%s: host controller process error\n", 1286 USBDEVNAME(sc->sc_bus.bdev)); 1287 } 1288 if (status & UHCI_STS_HCH) { 1289 /* no acknowledge needed */ 1290 if (!sc->sc_dying) { 1291 printf("%s: host controller halted\n", 1292 USBDEVNAME(sc->sc_bus.bdev)); 1293 #ifdef UHCI_DEBUG 1294 uhci_dump_all(sc); 1295 #endif 1296 } 1297 sc->sc_dying = 1; 1298 } 1299 1300 if (!ack) 1301 return (0); /* nothing to acknowledge */ 1302 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1303 1304 sc->sc_bus.no_intrs++; 1305 usb_schedsoftintr(&sc->sc_bus); 1306 1307 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1308 1309 return (1); 1310 } 1311 1312 void 1313 uhci_softintr(void *v) 1314 { 1315 uhci_softc_t *sc = v; 1316 uhci_intr_info_t *ii, *nextii; 1317 1318 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1319 sc->sc_bus.intr_context)); 1320 1321 sc->sc_bus.intr_context++; 1322 1323 /* 1324 * Interrupts on UHCI really suck. When the host controller 1325 * interrupts because a transfer is completed there is no 1326 * way of knowing which transfer it was. You can scan down 1327 * the TDs and QHs of the previous frame to limit the search, 1328 * but that assumes that the interrupt was not delayed by more 1329 * than 1 ms, which may not always be true (e.g. after debug 1330 * output on a slow console). 1331 * We scan all interrupt descriptors to see if any have 1332 * completed. 1333 */ 1334 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1335 nextii = LIST_NEXT(ii, list); 1336 uhci_check_intr(sc, ii); 1337 } 1338 1339 #ifdef USB_USE_SOFTINTR 1340 if (sc->sc_softwake) { 1341 sc->sc_softwake = 0; 1342 wakeup(&sc->sc_softwake); 1343 } 1344 #endif /* USB_USE_SOFTINTR */ 1345 1346 sc->sc_bus.intr_context--; 1347 } 1348 1349 /* Check for an interrupt. */ 1350 void 1351 uhci_check_intr(uhci_softc_t *sc __unused, uhci_intr_info_t *ii) 1352 { 1353 uhci_soft_td_t *std, *lstd; 1354 u_int32_t status; 1355 1356 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1357 #ifdef DIAGNOSTIC 1358 if (ii == NULL) { 1359 printf("uhci_check_intr: no ii? %p\n", ii); 1360 return; 1361 } 1362 #endif 1363 if (ii->xfer->status == USBD_CANCELLED || 1364 ii->xfer->status == USBD_TIMEOUT) { 1365 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1366 return; 1367 } 1368 1369 if (ii->stdstart == NULL) 1370 return; 1371 lstd = ii->stdend; 1372 #ifdef DIAGNOSTIC 1373 if (lstd == NULL) { 1374 printf("uhci_check_intr: std==0\n"); 1375 return; 1376 } 1377 #endif 1378 /* 1379 * If the last TD is still active we need to check whether there 1380 * is an error somewhere in the middle, or whether there was a 1381 * short packet (SPD and not ACTIVE). 1382 */ 1383 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1384 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1385 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1386 status = le32toh(std->td.td_status); 1387 /* If there's an active TD the xfer isn't done. */ 1388 if (status & UHCI_TD_ACTIVE) 1389 break; 1390 /* Any kind of error makes the xfer done. */ 1391 if (status & UHCI_TD_STALLED) 1392 goto done; 1393 /* We want short packets, and it is short: it's done */ 1394 if ((status & UHCI_TD_SPD) && 1395 UHCI_TD_GET_ACTLEN(status) < 1396 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1397 goto done; 1398 } 1399 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1400 ii, ii->stdstart)); 1401 return; 1402 } 1403 done: 1404 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1405 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1406 uhci_idone(ii); 1407 } 1408 1409 /* Called at splusb() */ 1410 void 1411 uhci_idone(uhci_intr_info_t *ii) 1412 { 1413 usbd_xfer_handle xfer = ii->xfer; 1414 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1415 uhci_soft_td_t *std; 1416 u_int32_t status = 0, nstatus; 1417 int actlen; 1418 1419 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1420 #ifdef DIAGNOSTIC 1421 { 1422 int s = splhigh(); 1423 if (ii->isdone) { 1424 splx(s); 1425 #ifdef UHCI_DEBUG 1426 printf("uhci_idone: ii is done!\n "); 1427 uhci_dump_ii(ii); 1428 #else 1429 printf("uhci_idone: ii=%p is done!\n", ii); 1430 #endif 1431 return; 1432 } 1433 ii->isdone = 1; 1434 splx(s); 1435 } 1436 #endif 1437 1438 if (xfer->nframes != 0) { 1439 /* Isoc transfer, do things differently. */ 1440 uhci_soft_td_t **stds = upipe->u.iso.stds; 1441 int i, n, nframes, len; 1442 1443 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1444 1445 nframes = xfer->nframes; 1446 actlen = 0; 1447 n = UXFER(xfer)->curframe; 1448 for (i = 0; i < nframes; i++) { 1449 std = stds[n]; 1450 #ifdef UHCI_DEBUG 1451 if (uhcidebug > 5) { 1452 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1453 uhci_dump_td(std); 1454 } 1455 #endif 1456 if (++n >= UHCI_VFRAMELIST_COUNT) 1457 n = 0; 1458 status = le32toh(std->td.td_status); 1459 len = UHCI_TD_GET_ACTLEN(status); 1460 xfer->frlengths[i] = len; 1461 actlen += len; 1462 } 1463 upipe->u.iso.inuse -= nframes; 1464 xfer->actlen = actlen; 1465 xfer->status = USBD_NORMAL_COMPLETION; 1466 goto end; 1467 } 1468 1469 #ifdef UHCI_DEBUG 1470 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1471 ii, xfer, upipe)); 1472 if (uhcidebug > 10) 1473 uhci_dump_tds(ii->stdstart); 1474 #endif 1475 1476 /* The transfer is done, compute actual length and status. */ 1477 actlen = 0; 1478 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1479 nstatus = le32toh(std->td.td_status); 1480 if (nstatus & UHCI_TD_ACTIVE) 1481 break; 1482 1483 status = nstatus; 1484 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1485 UHCI_TD_PID_SETUP) 1486 actlen += UHCI_TD_GET_ACTLEN(status); 1487 else { 1488 /* 1489 * UHCI will report CRCTO in addition to a STALL or NAK 1490 * for a SETUP transaction. See section 3.2.2, "TD 1491 * CONTROL AND STATUS". 1492 */ 1493 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1494 status &= ~UHCI_TD_CRCTO; 1495 } 1496 } 1497 /* If there are left over TDs we need to update the toggle. */ 1498 if (std != NULL) 1499 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1500 1501 status &= UHCI_TD_ERROR; 1502 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1503 actlen, status)); 1504 xfer->actlen = actlen; 1505 if (status != 0) { 1506 #ifdef UHCI_DEBUG 1507 char sbuf[128]; 1508 1509 bitmask_snprintf((u_int32_t)status, 1510 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1511 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1512 sbuf, sizeof(sbuf)); 1513 1514 DPRINTFN((status == UHCI_TD_STALLED)*10, 1515 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1516 "status 0x%s\n", 1517 xfer->pipe->device->address, 1518 xfer->pipe->endpoint->edesc->bEndpointAddress, 1519 sbuf)); 1520 #endif 1521 1522 if (status == UHCI_TD_STALLED) 1523 xfer->status = USBD_STALLED; 1524 else 1525 xfer->status = USBD_IOERROR; /* more info XXX */ 1526 } else { 1527 xfer->status = USBD_NORMAL_COMPLETION; 1528 } 1529 1530 end: 1531 usb_transfer_complete(xfer); 1532 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1533 } 1534 1535 /* 1536 * Called when a request does not complete. 1537 */ 1538 void 1539 uhci_timeout(void *addr) 1540 { 1541 uhci_intr_info_t *ii = addr; 1542 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1543 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1544 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1545 1546 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1547 1548 if (sc->sc_dying) { 1549 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1550 return; 1551 } 1552 1553 /* Execute the abort in a process context. */ 1554 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1555 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1556 } 1557 1558 void 1559 uhci_timeout_task(void *addr) 1560 { 1561 usbd_xfer_handle xfer = addr; 1562 int s; 1563 1564 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1565 1566 s = splusb(); 1567 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1568 splx(s); 1569 } 1570 1571 /* 1572 * Wait here until controller claims to have an interrupt. 1573 * Then call uhci_intr and return. Use timeout to avoid waiting 1574 * too long. 1575 * Only used during boot when interrupts are not enabled yet. 1576 */ 1577 void 1578 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1579 { 1580 int timo = xfer->timeout; 1581 uhci_intr_info_t *ii; 1582 1583 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1584 1585 xfer->status = USBD_IN_PROGRESS; 1586 for (; timo >= 0; timo--) { 1587 usb_delay_ms(&sc->sc_bus, 1); 1588 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1589 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1590 uhci_intr1(sc); 1591 if (xfer->status != USBD_IN_PROGRESS) 1592 return; 1593 } 1594 } 1595 1596 /* Timeout */ 1597 DPRINTF(("uhci_waitintr: timeout\n")); 1598 for (ii = LIST_FIRST(&sc->sc_intrhead); 1599 ii != NULL && ii->xfer != xfer; 1600 ii = LIST_NEXT(ii, list)) 1601 ; 1602 #ifdef DIAGNOSTIC 1603 if (ii == NULL) 1604 panic("uhci_waitintr: lost intr_info"); 1605 #endif 1606 uhci_idone(ii); 1607 } 1608 1609 void 1610 uhci_poll(struct usbd_bus *bus) 1611 { 1612 uhci_softc_t *sc = (uhci_softc_t *)bus; 1613 1614 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1615 uhci_intr1(sc); 1616 } 1617 1618 void 1619 uhci_reset(uhci_softc_t *sc) 1620 { 1621 int n; 1622 1623 UHCICMD(sc, UHCI_CMD_HCRESET); 1624 /* The reset bit goes low when the controller is done. */ 1625 for (n = 0; n < UHCI_RESET_TIMEOUT && 1626 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1627 usb_delay_ms(&sc->sc_bus, 1); 1628 if (n >= UHCI_RESET_TIMEOUT) 1629 printf("%s: controller did not reset\n", 1630 USBDEVNAME(sc->sc_bus.bdev)); 1631 } 1632 1633 usbd_status 1634 uhci_run(uhci_softc_t *sc, int run) 1635 { 1636 int s, n, running; 1637 u_int16_t cmd; 1638 1639 run = run != 0; 1640 s = splhardusb(); 1641 DPRINTF(("uhci_run: setting run=%d\n", run)); 1642 cmd = UREAD2(sc, UHCI_CMD); 1643 if (run) 1644 cmd |= UHCI_CMD_RS; 1645 else 1646 cmd &= ~UHCI_CMD_RS; 1647 UHCICMD(sc, cmd); 1648 for(n = 0; n < 10; n++) { 1649 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1650 /* return when we've entered the state we want */ 1651 if (run == running) { 1652 splx(s); 1653 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1654 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1655 return (USBD_NORMAL_COMPLETION); 1656 } 1657 usb_delay_ms(&sc->sc_bus, 1); 1658 } 1659 splx(s); 1660 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1661 run ? "start" : "stop"); 1662 return (USBD_IOERROR); 1663 } 1664 1665 /* 1666 * Memory management routines. 1667 * uhci_alloc_std allocates TDs 1668 * uhci_alloc_sqh allocates QHs 1669 * These two routines do their own free list management, 1670 * partly for speed, partly because allocating DMAable memory 1671 * has page size granularaity so much memory would be wasted if 1672 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1673 */ 1674 1675 uhci_soft_td_t * 1676 uhci_alloc_std(uhci_softc_t *sc) 1677 { 1678 uhci_soft_td_t *std; 1679 usbd_status err; 1680 int i, offs; 1681 usb_dma_t dma; 1682 1683 if (sc->sc_freetds == NULL) { 1684 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1685 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1686 UHCI_TD_ALIGN, &dma); 1687 if (err) 1688 return (0); 1689 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1690 offs = i * UHCI_STD_SIZE; 1691 std = KERNADDR(&dma, offs); 1692 std->physaddr = DMAADDR(&dma, offs); 1693 std->link.std = sc->sc_freetds; 1694 sc->sc_freetds = std; 1695 } 1696 } 1697 std = sc->sc_freetds; 1698 sc->sc_freetds = std->link.std; 1699 memset(&std->td, 0, sizeof(uhci_td_t)); 1700 return std; 1701 } 1702 1703 void 1704 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1705 { 1706 #ifdef DIAGNOSTIC 1707 #define TD_IS_FREE 0x12345678 1708 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1709 printf("uhci_free_std: freeing free TD %p\n", std); 1710 return; 1711 } 1712 std->td.td_token = htole32(TD_IS_FREE); 1713 #endif 1714 std->link.std = sc->sc_freetds; 1715 sc->sc_freetds = std; 1716 } 1717 1718 uhci_soft_qh_t * 1719 uhci_alloc_sqh(uhci_softc_t *sc) 1720 { 1721 uhci_soft_qh_t *sqh; 1722 usbd_status err; 1723 int i, offs; 1724 usb_dma_t dma; 1725 1726 if (sc->sc_freeqhs == NULL) { 1727 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1728 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1729 UHCI_QH_ALIGN, &dma); 1730 if (err) 1731 return (0); 1732 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1733 offs = i * UHCI_SQH_SIZE; 1734 sqh = KERNADDR(&dma, offs); 1735 sqh->physaddr = DMAADDR(&dma, offs); 1736 sqh->hlink = sc->sc_freeqhs; 1737 sc->sc_freeqhs = sqh; 1738 } 1739 } 1740 sqh = sc->sc_freeqhs; 1741 sc->sc_freeqhs = sqh->hlink; 1742 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1743 return (sqh); 1744 } 1745 1746 void 1747 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1748 { 1749 sqh->hlink = sc->sc_freeqhs; 1750 sc->sc_freeqhs = sqh; 1751 } 1752 1753 void 1754 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1755 uhci_soft_td_t *stdend) 1756 { 1757 uhci_soft_td_t *p; 1758 1759 for (; std != stdend; std = p) { 1760 p = std->link.std; 1761 uhci_free_std(sc, std); 1762 } 1763 } 1764 1765 usbd_status 1766 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1767 int rd, u_int16_t flags, usb_dma_t *dma, 1768 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1769 { 1770 uhci_soft_td_t *p, *lastp; 1771 uhci_physaddr_t lastlink; 1772 int i, ntd, l, tog, maxp; 1773 u_int32_t status; 1774 int addr = upipe->pipe.device->address; 1775 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1776 1777 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1778 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1779 upipe->pipe.device->speed, flags)); 1780 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1781 if (maxp == 0) { 1782 printf("uhci_alloc_std_chain: maxp=0\n"); 1783 return (USBD_INVAL); 1784 } 1785 ntd = (len + maxp - 1) / maxp; 1786 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1787 ntd++; 1788 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1789 if (ntd == 0) { 1790 *sp = *ep = 0; 1791 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1792 return (USBD_NORMAL_COMPLETION); 1793 } 1794 tog = upipe->nexttoggle; 1795 if (ntd % 2 == 0) 1796 tog ^= 1; 1797 upipe->nexttoggle = tog ^ 1; 1798 lastp = NULL; 1799 lastlink = UHCI_PTR_T; 1800 ntd--; 1801 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1802 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1803 status |= UHCI_TD_LS; 1804 if (flags & USBD_SHORT_XFER_OK) 1805 status |= UHCI_TD_SPD; 1806 for (i = ntd; i >= 0; i--) { 1807 p = uhci_alloc_std(sc); 1808 if (p == NULL) { 1809 KASSERT(lastp != NULL); 1810 uhci_free_std_chain(sc, lastp, NULL); 1811 return (USBD_NOMEM); 1812 } 1813 p->link.std = lastp; 1814 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1815 lastp = p; 1816 lastlink = p->physaddr; 1817 p->td.td_status = htole32(status); 1818 if (i == ntd) { 1819 /* last TD */ 1820 l = len % maxp; 1821 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1822 l = maxp; 1823 *ep = p; 1824 } else 1825 l = maxp; 1826 p->td.td_token = 1827 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1828 UHCI_TD_OUT(l, endpt, addr, tog)); 1829 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1830 tog ^= 1; 1831 } 1832 *sp = lastp; 1833 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1834 upipe->nexttoggle)); 1835 return (USBD_NORMAL_COMPLETION); 1836 } 1837 1838 void 1839 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1840 { 1841 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1842 upipe->nexttoggle = 0; 1843 } 1844 1845 void 1846 uhci_noop(usbd_pipe_handle pipe __unused) 1847 { 1848 } 1849 1850 usbd_status 1851 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1852 { 1853 usbd_status err; 1854 1855 /* Insert last in queue. */ 1856 err = usb_insert_transfer(xfer); 1857 if (err) 1858 return (err); 1859 1860 /* 1861 * Pipe isn't running (otherwise err would be USBD_INPROG), 1862 * so start it first. 1863 */ 1864 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1865 } 1866 1867 usbd_status 1868 uhci_device_bulk_start(usbd_xfer_handle xfer) 1869 { 1870 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1871 usbd_device_handle dev = upipe->pipe.device; 1872 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1873 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1874 uhci_soft_td_t *data, *dataend; 1875 uhci_soft_qh_t *sqh; 1876 usbd_status err; 1877 int len, isread, endpt; 1878 int s; 1879 1880 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1881 xfer, xfer->length, xfer->flags, ii)); 1882 1883 if (sc->sc_dying) 1884 return (USBD_IOERROR); 1885 1886 #ifdef DIAGNOSTIC 1887 if (xfer->rqflags & URQ_REQUEST) 1888 panic("uhci_device_bulk_transfer: a request"); 1889 #endif 1890 1891 len = xfer->length; 1892 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1893 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1894 sqh = upipe->u.bulk.sqh; 1895 1896 upipe->u.bulk.isread = isread; 1897 upipe->u.bulk.length = len; 1898 1899 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1900 &xfer->dmabuf, &data, &dataend); 1901 if (err) 1902 return (err); 1903 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1904 1905 #ifdef UHCI_DEBUG 1906 if (uhcidebug > 8) { 1907 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1908 uhci_dump_tds(data); 1909 } 1910 #endif 1911 1912 /* Set up interrupt info. */ 1913 ii->xfer = xfer; 1914 ii->stdstart = data; 1915 ii->stdend = dataend; 1916 #ifdef DIAGNOSTIC 1917 if (!ii->isdone) { 1918 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1919 } 1920 ii->isdone = 0; 1921 #endif 1922 1923 sqh->elink = data; 1924 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1925 1926 s = splusb(); 1927 uhci_add_bulk(sc, sqh); 1928 uhci_add_intr_info(sc, ii); 1929 1930 if (xfer->timeout && !sc->sc_bus.use_polling) { 1931 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1932 uhci_timeout, ii); 1933 } 1934 xfer->status = USBD_IN_PROGRESS; 1935 splx(s); 1936 1937 #ifdef UHCI_DEBUG 1938 if (uhcidebug > 10) { 1939 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1940 uhci_dump_tds(data); 1941 } 1942 #endif 1943 1944 if (sc->sc_bus.use_polling) 1945 uhci_waitintr(sc, xfer); 1946 1947 return (USBD_IN_PROGRESS); 1948 } 1949 1950 /* Abort a device bulk request. */ 1951 void 1952 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1953 { 1954 DPRINTF(("uhci_device_bulk_abort:\n")); 1955 uhci_abort_xfer(xfer, USBD_CANCELLED); 1956 } 1957 1958 /* 1959 * Abort a device request. 1960 * If this routine is called at splusb() it guarantees that the request 1961 * will be removed from the hardware scheduling and that the callback 1962 * for it will be called with USBD_CANCELLED status. 1963 * It's impossible to guarantee that the requested transfer will not 1964 * have happened since the hardware runs concurrently. 1965 * If the transaction has already happened we rely on the ordinary 1966 * interrupt processing to process it. 1967 */ 1968 void 1969 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1970 { 1971 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1972 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1973 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1974 uhci_soft_td_t *std; 1975 int s; 1976 int wake; 1977 1978 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1979 1980 if (sc->sc_dying) { 1981 /* If we're dying, just do the software part. */ 1982 s = splusb(); 1983 xfer->status = status; /* make software ignore it */ 1984 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1985 usb_transfer_complete(xfer); 1986 splx(s); 1987 return; 1988 } 1989 1990 if (xfer->device->bus->intr_context || !curproc) 1991 panic("uhci_abort_xfer: not in process context"); 1992 1993 /* 1994 * If an abort is already in progress then just wait for it to 1995 * complete and return. 1996 */ 1997 if (xfer->hcflags & UXFER_ABORTING) { 1998 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1999 #ifdef DIAGNOSTIC 2000 if (status == USBD_TIMEOUT) 2001 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 2002 #endif 2003 /* Override the status which might be USBD_TIMEOUT. */ 2004 xfer->status = status; 2005 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2006 xfer->hcflags |= UXFER_ABORTWAIT; 2007 while (xfer->hcflags & UXFER_ABORTING) 2008 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2009 return; 2010 } 2011 xfer->hcflags |= UXFER_ABORTING; 2012 2013 /* 2014 * Step 1: Make interrupt routine and hardware ignore xfer. 2015 */ 2016 s = splusb(); 2017 xfer->status = status; /* make software ignore it */ 2018 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2019 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2020 for (std = ii->stdstart; std != NULL; std = std->link.std) 2021 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2022 splx(s); 2023 2024 /* 2025 * Step 2: Wait until we know hardware has finished any possible 2026 * use of the xfer. Also make sure the soft interrupt routine 2027 * has run. 2028 */ 2029 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2030 s = splusb(); 2031 #ifdef USB_USE_SOFTINTR 2032 sc->sc_softwake = 1; 2033 #endif /* USB_USE_SOFTINTR */ 2034 usb_schedsoftintr(&sc->sc_bus); 2035 #ifdef USB_USE_SOFTINTR 2036 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2037 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2038 #endif /* USB_USE_SOFTINTR */ 2039 splx(s); 2040 2041 /* 2042 * Step 3: Execute callback. 2043 */ 2044 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2045 s = splusb(); 2046 #ifdef DIAGNOSTIC 2047 ii->isdone = 1; 2048 #endif 2049 wake = xfer->hcflags & UXFER_ABORTWAIT; 2050 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2051 usb_transfer_complete(xfer); 2052 if (wake) 2053 wakeup(&xfer->hcflags); 2054 splx(s); 2055 } 2056 2057 /* Close a device bulk pipe. */ 2058 void 2059 uhci_device_bulk_close(usbd_pipe_handle pipe) 2060 { 2061 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2062 usbd_device_handle dev = upipe->pipe.device; 2063 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2064 2065 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2066 } 2067 2068 usbd_status 2069 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2070 { 2071 usbd_status err; 2072 2073 /* Insert last in queue. */ 2074 err = usb_insert_transfer(xfer); 2075 if (err) 2076 return (err); 2077 2078 /* 2079 * Pipe isn't running (otherwise err would be USBD_INPROG), 2080 * so start it first. 2081 */ 2082 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2083 } 2084 2085 usbd_status 2086 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2087 { 2088 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2089 usbd_status err; 2090 2091 if (sc->sc_dying) 2092 return (USBD_IOERROR); 2093 2094 #ifdef DIAGNOSTIC 2095 if (!(xfer->rqflags & URQ_REQUEST)) 2096 panic("uhci_device_ctrl_transfer: not a request"); 2097 #endif 2098 2099 err = uhci_device_request(xfer); 2100 if (err) 2101 return (err); 2102 2103 if (sc->sc_bus.use_polling) 2104 uhci_waitintr(sc, xfer); 2105 return (USBD_IN_PROGRESS); 2106 } 2107 2108 usbd_status 2109 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2110 { 2111 usbd_status err; 2112 2113 /* Insert last in queue. */ 2114 err = usb_insert_transfer(xfer); 2115 if (err) 2116 return (err); 2117 2118 /* 2119 * Pipe isn't running (otherwise err would be USBD_INPROG), 2120 * so start it first. 2121 */ 2122 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2123 } 2124 2125 usbd_status 2126 uhci_device_intr_start(usbd_xfer_handle xfer) 2127 { 2128 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2129 usbd_device_handle dev = upipe->pipe.device; 2130 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2131 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2132 uhci_soft_td_t *data, *dataend; 2133 uhci_soft_qh_t *sqh; 2134 usbd_status err; 2135 int isread, endpt; 2136 int i, s; 2137 2138 if (sc->sc_dying) 2139 return (USBD_IOERROR); 2140 2141 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2142 xfer, xfer->length, xfer->flags)); 2143 2144 #ifdef DIAGNOSTIC 2145 if (xfer->rqflags & URQ_REQUEST) 2146 panic("uhci_device_intr_transfer: a request"); 2147 #endif 2148 2149 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2150 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2151 2152 upipe->u.intr.isread = isread; 2153 2154 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2155 xfer->flags, &xfer->dmabuf, &data, 2156 &dataend); 2157 if (err) 2158 return (err); 2159 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2160 2161 #ifdef UHCI_DEBUG 2162 if (uhcidebug > 10) { 2163 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2164 uhci_dump_tds(data); 2165 uhci_dump_qh(upipe->u.intr.qhs[0]); 2166 } 2167 #endif 2168 2169 s = splusb(); 2170 /* Set up interrupt info. */ 2171 ii->xfer = xfer; 2172 ii->stdstart = data; 2173 ii->stdend = dataend; 2174 #ifdef DIAGNOSTIC 2175 if (!ii->isdone) { 2176 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2177 } 2178 ii->isdone = 0; 2179 #endif 2180 2181 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2182 upipe->u.intr.qhs[0])); 2183 for (i = 0; i < upipe->u.intr.npoll; i++) { 2184 sqh = upipe->u.intr.qhs[i]; 2185 sqh->elink = data; 2186 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2187 } 2188 uhci_add_intr_info(sc, ii); 2189 xfer->status = USBD_IN_PROGRESS; 2190 splx(s); 2191 2192 #ifdef UHCI_DEBUG 2193 if (uhcidebug > 10) { 2194 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2195 uhci_dump_tds(data); 2196 uhci_dump_qh(upipe->u.intr.qhs[0]); 2197 } 2198 #endif 2199 2200 return (USBD_IN_PROGRESS); 2201 } 2202 2203 /* Abort a device control request. */ 2204 void 2205 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2206 { 2207 DPRINTF(("uhci_device_ctrl_abort:\n")); 2208 uhci_abort_xfer(xfer, USBD_CANCELLED); 2209 } 2210 2211 /* Close a device control pipe. */ 2212 void 2213 uhci_device_ctrl_close(usbd_pipe_handle pipe __unused) 2214 { 2215 } 2216 2217 /* Abort a device interrupt request. */ 2218 void 2219 uhci_device_intr_abort(usbd_xfer_handle xfer) 2220 { 2221 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2222 if (xfer->pipe->intrxfer == xfer) { 2223 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2224 xfer->pipe->intrxfer = NULL; 2225 } 2226 uhci_abort_xfer(xfer, USBD_CANCELLED); 2227 } 2228 2229 /* Close a device interrupt pipe. */ 2230 void 2231 uhci_device_intr_close(usbd_pipe_handle pipe) 2232 { 2233 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2234 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2235 int i, npoll; 2236 int s; 2237 2238 /* Unlink descriptors from controller data structures. */ 2239 npoll = upipe->u.intr.npoll; 2240 s = splusb(); 2241 for (i = 0; i < npoll; i++) 2242 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2243 splx(s); 2244 2245 /* 2246 * We now have to wait for any activity on the physical 2247 * descriptors to stop. 2248 */ 2249 usb_delay_ms(&sc->sc_bus, 2); 2250 2251 for(i = 0; i < npoll; i++) 2252 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2253 free(upipe->u.intr.qhs, M_USBHC); 2254 2255 /* XXX free other resources */ 2256 } 2257 2258 usbd_status 2259 uhci_device_request(usbd_xfer_handle xfer) 2260 { 2261 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2262 usb_device_request_t *req = &xfer->request; 2263 usbd_device_handle dev = upipe->pipe.device; 2264 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2265 int addr = dev->address; 2266 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2267 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2268 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2269 uhci_soft_qh_t *sqh; 2270 int len; 2271 u_int32_t ls; 2272 usbd_status err; 2273 int isread; 2274 int s; 2275 2276 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2277 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2278 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2279 UGETW(req->wIndex), UGETW(req->wLength), 2280 addr, endpt)); 2281 2282 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2283 isread = req->bmRequestType & UT_READ; 2284 len = UGETW(req->wLength); 2285 2286 setup = upipe->u.ctl.setup; 2287 stat = upipe->u.ctl.stat; 2288 sqh = upipe->u.ctl.sqh; 2289 2290 /* Set up data transaction */ 2291 if (len != 0) { 2292 upipe->nexttoggle = 1; 2293 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2294 &xfer->dmabuf, &data, &dataend); 2295 if (err) 2296 return (err); 2297 next = data; 2298 dataend->link.std = stat; 2299 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2300 } else { 2301 next = stat; 2302 } 2303 upipe->u.ctl.length = len; 2304 2305 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2306 2307 setup->link.std = next; 2308 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2309 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2310 UHCI_TD_ACTIVE); 2311 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2312 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2313 2314 stat->link.std = NULL; 2315 stat->td.td_link = htole32(UHCI_PTR_T); 2316 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2317 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2318 stat->td.td_token = 2319 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2320 UHCI_TD_IN (0, endpt, addr, 1)); 2321 stat->td.td_buffer = htole32(0); 2322 2323 #ifdef UHCI_DEBUG 2324 if (uhcidebug > 10) { 2325 DPRINTF(("uhci_device_request: before transfer\n")); 2326 uhci_dump_tds(setup); 2327 } 2328 #endif 2329 2330 /* Set up interrupt info. */ 2331 ii->xfer = xfer; 2332 ii->stdstart = setup; 2333 ii->stdend = stat; 2334 #ifdef DIAGNOSTIC 2335 if (!ii->isdone) { 2336 printf("uhci_device_request: not done, ii=%p\n", ii); 2337 } 2338 ii->isdone = 0; 2339 #endif 2340 2341 sqh->elink = setup; 2342 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2343 2344 s = splusb(); 2345 if (dev->speed == USB_SPEED_LOW) 2346 uhci_add_ls_ctrl(sc, sqh); 2347 else 2348 uhci_add_hs_ctrl(sc, sqh); 2349 uhci_add_intr_info(sc, ii); 2350 #ifdef UHCI_DEBUG 2351 if (uhcidebug > 12) { 2352 uhci_soft_td_t *std; 2353 uhci_soft_qh_t *xqh; 2354 uhci_soft_qh_t *sxqh; 2355 int maxqh = 0; 2356 uhci_physaddr_t link; 2357 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2358 for (std = sc->sc_vframes[0].htd, link = 0; 2359 (link & UHCI_PTR_QH) == 0; 2360 std = std->link.std) { 2361 link = le32toh(std->td.td_link); 2362 uhci_dump_td(std); 2363 } 2364 sxqh = (uhci_soft_qh_t *)std; 2365 uhci_dump_qh(sxqh); 2366 for (xqh = sxqh; 2367 xqh != NULL; 2368 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2369 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2370 uhci_dump_qh(xqh); 2371 } 2372 DPRINTF(("Enqueued QH:\n")); 2373 uhci_dump_qh(sqh); 2374 uhci_dump_tds(sqh->elink); 2375 } 2376 #endif 2377 if (xfer->timeout && !sc->sc_bus.use_polling) { 2378 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2379 uhci_timeout, ii); 2380 } 2381 xfer->status = USBD_IN_PROGRESS; 2382 splx(s); 2383 2384 return (USBD_NORMAL_COMPLETION); 2385 } 2386 2387 usbd_status 2388 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2389 { 2390 usbd_status err; 2391 2392 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2393 2394 /* Put it on our queue, */ 2395 err = usb_insert_transfer(xfer); 2396 2397 /* bail out on error, */ 2398 if (err && err != USBD_IN_PROGRESS) 2399 return (err); 2400 2401 /* XXX should check inuse here */ 2402 2403 /* insert into schedule, */ 2404 uhci_device_isoc_enter(xfer); 2405 2406 /* and start if the pipe wasn't running */ 2407 if (!err) 2408 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2409 2410 return (err); 2411 } 2412 2413 void 2414 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2415 { 2416 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2417 usbd_device_handle dev = upipe->pipe.device; 2418 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2419 struct iso *iso = &upipe->u.iso; 2420 uhci_soft_td_t *std; 2421 u_int32_t buf, len, status; 2422 int s, i, next, nframes; 2423 2424 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2425 "nframes=%d\n", 2426 iso->inuse, iso->next, xfer, xfer->nframes)); 2427 2428 if (sc->sc_dying) 2429 return; 2430 2431 if (xfer->status == USBD_IN_PROGRESS) { 2432 /* This request has already been entered into the frame list */ 2433 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2434 /* XXX */ 2435 } 2436 2437 #ifdef DIAGNOSTIC 2438 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2439 printf("uhci_device_isoc_enter: overflow!\n"); 2440 #endif 2441 2442 next = iso->next; 2443 if (next == -1) { 2444 /* Not in use yet, schedule it a few frames ahead. */ 2445 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2446 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2447 } 2448 2449 xfer->status = USBD_IN_PROGRESS; 2450 UXFER(xfer)->curframe = next; 2451 2452 buf = DMAADDR(&xfer->dmabuf, 0); 2453 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2454 UHCI_TD_ACTIVE | 2455 UHCI_TD_IOS); 2456 nframes = xfer->nframes; 2457 s = splusb(); 2458 for (i = 0; i < nframes; i++) { 2459 std = iso->stds[next]; 2460 if (++next >= UHCI_VFRAMELIST_COUNT) 2461 next = 0; 2462 len = xfer->frlengths[i]; 2463 std->td.td_buffer = htole32(buf); 2464 if (i == nframes - 1) 2465 status |= UHCI_TD_IOC; 2466 std->td.td_status = htole32(status); 2467 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2468 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2469 #ifdef UHCI_DEBUG 2470 if (uhcidebug > 5) { 2471 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2472 uhci_dump_td(std); 2473 } 2474 #endif 2475 buf += len; 2476 } 2477 iso->next = next; 2478 iso->inuse += xfer->nframes; 2479 2480 splx(s); 2481 } 2482 2483 usbd_status 2484 uhci_device_isoc_start(usbd_xfer_handle xfer) 2485 { 2486 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2487 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2488 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2489 uhci_soft_td_t *end; 2490 int s, i; 2491 2492 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2493 2494 if (sc->sc_dying) 2495 return (USBD_IOERROR); 2496 2497 #ifdef DIAGNOSTIC 2498 if (xfer->status != USBD_IN_PROGRESS) 2499 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2500 #endif 2501 2502 /* Find the last TD */ 2503 i = UXFER(xfer)->curframe + xfer->nframes; 2504 if (i >= UHCI_VFRAMELIST_COUNT) 2505 i -= UHCI_VFRAMELIST_COUNT; 2506 end = upipe->u.iso.stds[i]; 2507 2508 #ifdef DIAGNOSTIC 2509 if (end == NULL) { 2510 printf("uhci_device_isoc_start: end == NULL\n"); 2511 return (USBD_INVAL); 2512 } 2513 #endif 2514 2515 s = splusb(); 2516 2517 /* Set up interrupt info. */ 2518 ii->xfer = xfer; 2519 ii->stdstart = end; 2520 ii->stdend = end; 2521 #ifdef DIAGNOSTIC 2522 if (!ii->isdone) 2523 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2524 ii->isdone = 0; 2525 #endif 2526 uhci_add_intr_info(sc, ii); 2527 2528 splx(s); 2529 2530 return (USBD_IN_PROGRESS); 2531 } 2532 2533 void 2534 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2535 { 2536 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2537 uhci_soft_td_t **stds = upipe->u.iso.stds; 2538 uhci_soft_td_t *std; 2539 int i, n, s, nframes, maxlen, len; 2540 2541 s = splusb(); 2542 2543 /* Transfer is already done. */ 2544 if (xfer->status != USBD_NOT_STARTED && 2545 xfer->status != USBD_IN_PROGRESS) { 2546 splx(s); 2547 return; 2548 } 2549 2550 /* Give xfer the requested abort code. */ 2551 xfer->status = USBD_CANCELLED; 2552 2553 /* make hardware ignore it, */ 2554 nframes = xfer->nframes; 2555 n = UXFER(xfer)->curframe; 2556 maxlen = 0; 2557 for (i = 0; i < nframes; i++) { 2558 std = stds[n]; 2559 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2560 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2561 if (len > maxlen) 2562 maxlen = len; 2563 if (++n >= UHCI_VFRAMELIST_COUNT) 2564 n = 0; 2565 } 2566 2567 /* and wait until we are sure the hardware has finished. */ 2568 delay(maxlen); 2569 2570 #ifdef DIAGNOSTIC 2571 UXFER(xfer)->iinfo.isdone = 1; 2572 #endif 2573 /* Run callback and remove from interrupt list. */ 2574 usb_transfer_complete(xfer); 2575 2576 splx(s); 2577 } 2578 2579 void 2580 uhci_device_isoc_close(usbd_pipe_handle pipe) 2581 { 2582 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2583 usbd_device_handle dev = upipe->pipe.device; 2584 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2585 uhci_soft_td_t *std, *vstd; 2586 struct iso *iso; 2587 int i, s; 2588 2589 /* 2590 * Make sure all TDs are marked as inactive. 2591 * Wait for completion. 2592 * Unschedule. 2593 * Deallocate. 2594 */ 2595 iso = &upipe->u.iso; 2596 2597 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2598 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2599 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2600 2601 s = splusb(); 2602 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2603 std = iso->stds[i]; 2604 for (vstd = sc->sc_vframes[i].htd; 2605 vstd != NULL && vstd->link.std != std; 2606 vstd = vstd->link.std) 2607 ; 2608 if (vstd == NULL) { 2609 /*panic*/ 2610 printf("uhci_device_isoc_close: %p not found\n", std); 2611 splx(s); 2612 return; 2613 } 2614 vstd->link = std->link; 2615 vstd->td.td_link = std->td.td_link; 2616 uhci_free_std(sc, std); 2617 } 2618 splx(s); 2619 2620 free(iso->stds, M_USBHC); 2621 } 2622 2623 usbd_status 2624 uhci_setup_isoc(usbd_pipe_handle pipe) 2625 { 2626 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2627 usbd_device_handle dev = upipe->pipe.device; 2628 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2629 int addr = upipe->pipe.device->address; 2630 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2631 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2632 uhci_soft_td_t *std, *vstd; 2633 u_int32_t token; 2634 struct iso *iso; 2635 int i, s; 2636 2637 iso = &upipe->u.iso; 2638 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2639 M_USBHC, M_WAITOK); 2640 2641 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2642 UHCI_TD_OUT(0, endpt, addr, 0); 2643 2644 /* Allocate the TDs and mark as inactive; */ 2645 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2646 std = uhci_alloc_std(sc); 2647 if (std == 0) 2648 goto bad; 2649 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2650 std->td.td_token = htole32(token); 2651 iso->stds[i] = std; 2652 } 2653 2654 /* Insert TDs into schedule. */ 2655 s = splusb(); 2656 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2657 std = iso->stds[i]; 2658 vstd = sc->sc_vframes[i].htd; 2659 std->link = vstd->link; 2660 std->td.td_link = vstd->td.td_link; 2661 vstd->link.std = std; 2662 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2663 } 2664 splx(s); 2665 2666 iso->next = -1; 2667 iso->inuse = 0; 2668 2669 return (USBD_NORMAL_COMPLETION); 2670 2671 bad: 2672 while (--i >= 0) 2673 uhci_free_std(sc, iso->stds[i]); 2674 free(iso->stds, M_USBHC); 2675 return (USBD_NOMEM); 2676 } 2677 2678 void 2679 uhci_device_isoc_done(usbd_xfer_handle xfer) 2680 { 2681 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2682 2683 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2684 xfer->actlen, xfer->busy_free)); 2685 2686 if (ii->xfer != xfer) 2687 /* Not on interrupt list, ignore it. */ 2688 return; 2689 2690 if (!uhci_active_intr_info(ii)) 2691 return; 2692 2693 #ifdef DIAGNOSTIC 2694 if (ii->stdend == NULL) { 2695 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2696 #ifdef UHCI_DEBUG 2697 uhci_dump_ii(ii); 2698 #endif 2699 return; 2700 } 2701 #endif 2702 2703 /* Turn off the interrupt since it is active even if the TD is not. */ 2704 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2705 2706 uhci_del_intr_info(ii); /* remove from active list */ 2707 } 2708 2709 void 2710 uhci_device_intr_done(usbd_xfer_handle xfer) 2711 { 2712 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2713 uhci_softc_t *sc = ii->sc; 2714 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2715 uhci_soft_qh_t *sqh; 2716 int i, npoll; 2717 2718 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2719 2720 npoll = upipe->u.intr.npoll; 2721 for(i = 0; i < npoll; i++) { 2722 sqh = upipe->u.intr.qhs[i]; 2723 sqh->elink = NULL; 2724 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2725 } 2726 uhci_free_std_chain(sc, ii->stdstart, NULL); 2727 2728 /* XXX Wasteful. */ 2729 if (xfer->pipe->repeat) { 2730 uhci_soft_td_t *data, *dataend; 2731 2732 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2733 2734 /* This alloc cannot fail since we freed the chain above. */ 2735 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2736 &xfer->dmabuf, &data, &dataend); 2737 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2738 2739 #ifdef UHCI_DEBUG 2740 if (uhcidebug > 10) { 2741 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2742 uhci_dump_tds(data); 2743 uhci_dump_qh(upipe->u.intr.qhs[0]); 2744 } 2745 #endif 2746 2747 ii->stdstart = data; 2748 ii->stdend = dataend; 2749 #ifdef DIAGNOSTIC 2750 if (!ii->isdone) { 2751 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2752 } 2753 ii->isdone = 0; 2754 #endif 2755 for (i = 0; i < npoll; i++) { 2756 sqh = upipe->u.intr.qhs[i]; 2757 sqh->elink = data; 2758 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2759 } 2760 xfer->status = USBD_IN_PROGRESS; 2761 /* The ii is already on the examined list, just leave it. */ 2762 } else { 2763 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2764 if (uhci_active_intr_info(ii)) 2765 uhci_del_intr_info(ii); 2766 } 2767 } 2768 2769 /* Deallocate request data structures */ 2770 void 2771 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2772 { 2773 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2774 uhci_softc_t *sc = ii->sc; 2775 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2776 2777 #ifdef DIAGNOSTIC 2778 if (!(xfer->rqflags & URQ_REQUEST)) 2779 panic("uhci_device_ctrl_done: not a request"); 2780 #endif 2781 2782 if (!uhci_active_intr_info(ii)) 2783 return; 2784 2785 uhci_del_intr_info(ii); /* remove from active list */ 2786 2787 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2788 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2789 else 2790 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2791 2792 if (upipe->u.ctl.length != 0) 2793 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2794 2795 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2796 } 2797 2798 /* Deallocate request data structures */ 2799 void 2800 uhci_device_bulk_done(usbd_xfer_handle xfer) 2801 { 2802 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2803 uhci_softc_t *sc = ii->sc; 2804 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2805 2806 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2807 xfer, ii, sc, upipe)); 2808 2809 if (!uhci_active_intr_info(ii)) 2810 return; 2811 2812 uhci_del_intr_info(ii); /* remove from active list */ 2813 2814 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2815 2816 uhci_free_std_chain(sc, ii->stdstart, NULL); 2817 2818 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2819 } 2820 2821 /* Add interrupt QH, called with vflock. */ 2822 void 2823 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2824 { 2825 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2826 uhci_soft_qh_t *eqh; 2827 2828 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2829 2830 eqh = vf->eqh; 2831 sqh->hlink = eqh->hlink; 2832 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2833 eqh->hlink = sqh; 2834 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2835 vf->eqh = sqh; 2836 vf->bandwidth++; 2837 } 2838 2839 /* Remove interrupt QH. */ 2840 void 2841 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2842 { 2843 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2844 uhci_soft_qh_t *pqh; 2845 2846 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2847 2848 /* See comment in uhci_remove_ctrl() */ 2849 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2850 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2851 delay(UHCI_QH_REMOVE_DELAY); 2852 } 2853 2854 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2855 pqh->hlink = sqh->hlink; 2856 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2857 delay(UHCI_QH_REMOVE_DELAY); 2858 if (vf->eqh == sqh) 2859 vf->eqh = pqh; 2860 vf->bandwidth--; 2861 } 2862 2863 usbd_status 2864 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2865 { 2866 uhci_soft_qh_t *sqh; 2867 int i, npoll, s; 2868 u_int bestbw, bw, bestoffs, offs; 2869 2870 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2871 if (ival == 0) { 2872 printf("uhci_device_setintr: 0 interval\n"); 2873 return (USBD_INVAL); 2874 } 2875 2876 if (ival > UHCI_VFRAMELIST_COUNT) 2877 ival = UHCI_VFRAMELIST_COUNT; 2878 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2879 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2880 2881 upipe->u.intr.npoll = npoll; 2882 upipe->u.intr.qhs = 2883 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2884 2885 /* 2886 * Figure out which offset in the schedule that has most 2887 * bandwidth left over. 2888 */ 2889 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2890 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2891 for (bw = i = 0; i < npoll; i++) 2892 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2893 if (bw < bestbw) { 2894 bestbw = bw; 2895 bestoffs = offs; 2896 } 2897 } 2898 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2899 2900 for(i = 0; i < npoll; i++) { 2901 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2902 sqh->elink = NULL; 2903 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2904 sqh->pos = MOD(i * ival + bestoffs); 2905 } 2906 #undef MOD 2907 2908 s = splusb(); 2909 /* Enter QHs into the controller data structures. */ 2910 for(i = 0; i < npoll; i++) 2911 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2912 splx(s); 2913 2914 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2915 return (USBD_NORMAL_COMPLETION); 2916 } 2917 2918 /* Open a new pipe. */ 2919 usbd_status 2920 uhci_open(usbd_pipe_handle pipe) 2921 { 2922 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2923 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2924 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2925 usbd_status err; 2926 int ival; 2927 2928 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2929 pipe, pipe->device->address, 2930 ed->bEndpointAddress, sc->sc_addr)); 2931 2932 upipe->aborting = 0; 2933 upipe->nexttoggle = 0; 2934 2935 if (pipe->device->address == sc->sc_addr) { 2936 switch (ed->bEndpointAddress) { 2937 case USB_CONTROL_ENDPOINT: 2938 pipe->methods = &uhci_root_ctrl_methods; 2939 break; 2940 case UE_DIR_IN | UHCI_INTR_ENDPT: 2941 pipe->methods = &uhci_root_intr_methods; 2942 break; 2943 default: 2944 return (USBD_INVAL); 2945 } 2946 } else { 2947 switch (ed->bmAttributes & UE_XFERTYPE) { 2948 case UE_CONTROL: 2949 pipe->methods = &uhci_device_ctrl_methods; 2950 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2951 if (upipe->u.ctl.sqh == NULL) 2952 goto bad; 2953 upipe->u.ctl.setup = uhci_alloc_std(sc); 2954 if (upipe->u.ctl.setup == NULL) { 2955 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2956 goto bad; 2957 } 2958 upipe->u.ctl.stat = uhci_alloc_std(sc); 2959 if (upipe->u.ctl.stat == NULL) { 2960 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2961 uhci_free_std(sc, upipe->u.ctl.setup); 2962 goto bad; 2963 } 2964 err = usb_allocmem(&sc->sc_bus, 2965 sizeof(usb_device_request_t), 2966 0, &upipe->u.ctl.reqdma); 2967 if (err) { 2968 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2969 uhci_free_std(sc, upipe->u.ctl.setup); 2970 uhci_free_std(sc, upipe->u.ctl.stat); 2971 goto bad; 2972 } 2973 break; 2974 case UE_INTERRUPT: 2975 pipe->methods = &uhci_device_intr_methods; 2976 ival = pipe->interval; 2977 if (ival == USBD_DEFAULT_INTERVAL) 2978 ival = ed->bInterval; 2979 return (uhci_device_setintr(sc, upipe, ival)); 2980 case UE_ISOCHRONOUS: 2981 pipe->methods = &uhci_device_isoc_methods; 2982 return (uhci_setup_isoc(pipe)); 2983 case UE_BULK: 2984 pipe->methods = &uhci_device_bulk_methods; 2985 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2986 if (upipe->u.bulk.sqh == NULL) 2987 goto bad; 2988 break; 2989 } 2990 } 2991 return (USBD_NORMAL_COMPLETION); 2992 2993 bad: 2994 return (USBD_NOMEM); 2995 } 2996 2997 /* 2998 * Data structures and routines to emulate the root hub. 2999 */ 3000 usb_device_descriptor_t uhci_devd = { 3001 USB_DEVICE_DESCRIPTOR_SIZE, 3002 UDESC_DEVICE, /* type */ 3003 {0x00, 0x01}, /* USB version */ 3004 UDCLASS_HUB, /* class */ 3005 UDSUBCLASS_HUB, /* subclass */ 3006 UDPROTO_FSHUB, /* protocol */ 3007 64, /* max packet */ 3008 {0},{0},{0x00,0x01}, /* device id */ 3009 1,2,0, /* string indicies */ 3010 1 /* # of configurations */ 3011 }; 3012 3013 usb_config_descriptor_t uhci_confd = { 3014 USB_CONFIG_DESCRIPTOR_SIZE, 3015 UDESC_CONFIG, 3016 {USB_CONFIG_DESCRIPTOR_SIZE + 3017 USB_INTERFACE_DESCRIPTOR_SIZE + 3018 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3019 1, 3020 1, 3021 0, 3022 UC_SELF_POWERED, 3023 0 /* max power */ 3024 }; 3025 3026 usb_interface_descriptor_t uhci_ifcd = { 3027 USB_INTERFACE_DESCRIPTOR_SIZE, 3028 UDESC_INTERFACE, 3029 0, 3030 0, 3031 1, 3032 UICLASS_HUB, 3033 UISUBCLASS_HUB, 3034 UIPROTO_FSHUB, 3035 0 3036 }; 3037 3038 usb_endpoint_descriptor_t uhci_endpd = { 3039 USB_ENDPOINT_DESCRIPTOR_SIZE, 3040 UDESC_ENDPOINT, 3041 UE_DIR_IN | UHCI_INTR_ENDPT, 3042 UE_INTERRUPT, 3043 {8}, 3044 255 3045 }; 3046 3047 usb_hub_descriptor_t uhci_hubd_piix = { 3048 USB_HUB_DESCRIPTOR_SIZE, 3049 UDESC_HUB, 3050 2, 3051 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3052 50, /* power on to power good */ 3053 0, 3054 { 0x00 }, /* both ports are removable */ 3055 { 0 }, 3056 }; 3057 3058 int 3059 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3060 { 3061 int i; 3062 3063 if (l == 0) 3064 return (0); 3065 p->bLength = 2 * strlen(s) + 2; 3066 if (l == 1) 3067 return (1); 3068 p->bDescriptorType = UDESC_STRING; 3069 l -= 2; 3070 for (i = 0; s[i] && l > 1; i++, l -= 2) 3071 USETW2(p->bString[i], 0, s[i]); 3072 return (2*i+2); 3073 } 3074 3075 /* 3076 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3077 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3078 * should not be used by the USB subsystem. As we cannot issue a 3079 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3080 * will be enabled as part of the reset. 3081 * 3082 * On the VT83C572, the port cannot be successfully enabled until the 3083 * outstanding "port enable change" and "connection status change" 3084 * events have been reset. 3085 */ 3086 Static usbd_status 3087 uhci_portreset(uhci_softc_t *sc, int index) 3088 { 3089 int lim, port, x; 3090 3091 if (index == 1) 3092 port = UHCI_PORTSC1; 3093 else if (index == 2) 3094 port = UHCI_PORTSC2; 3095 else 3096 return (USBD_IOERROR); 3097 3098 x = URWMASK(UREAD2(sc, port)); 3099 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3100 3101 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3102 3103 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3104 index, UREAD2(sc, port))); 3105 3106 x = URWMASK(UREAD2(sc, port)); 3107 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3108 3109 delay(100); 3110 3111 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3112 index, UREAD2(sc, port))); 3113 3114 x = URWMASK(UREAD2(sc, port)); 3115 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3116 3117 for (lim = 10; --lim > 0;) { 3118 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3119 3120 x = UREAD2(sc, port); 3121 3122 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3123 index, lim, x)); 3124 3125 if (!(x & UHCI_PORTSC_CCS)) { 3126 /* 3127 * No device is connected (or was disconnected 3128 * during reset). Consider the port reset. 3129 * The delay must be long enough to ensure on 3130 * the initial iteration that the device 3131 * connection will have been registered. 50ms 3132 * appears to be sufficient, but 20ms is not. 3133 */ 3134 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3135 index, lim)); 3136 break; 3137 } 3138 3139 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3140 /* 3141 * Port enabled changed and/or connection 3142 * status changed were set. Reset either or 3143 * both raised flags (by writing a 1 to that 3144 * bit), and wait again for state to settle. 3145 */ 3146 UWRITE2(sc, port, URWMASK(x) | 3147 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3148 continue; 3149 } 3150 3151 if (x & UHCI_PORTSC_PE) 3152 /* Port is enabled */ 3153 break; 3154 3155 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3156 } 3157 3158 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3159 index, UREAD2(sc, port))); 3160 3161 if (lim <= 0) { 3162 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3163 return (USBD_TIMEOUT); 3164 } 3165 3166 sc->sc_isreset = 1; 3167 return (USBD_NORMAL_COMPLETION); 3168 } 3169 3170 /* 3171 * Simulate a hardware hub by handling all the necessary requests. 3172 */ 3173 usbd_status 3174 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3175 { 3176 usbd_status err; 3177 3178 /* Insert last in queue. */ 3179 err = usb_insert_transfer(xfer); 3180 if (err) 3181 return (err); 3182 3183 /* 3184 * Pipe isn't running (otherwise err would be USBD_INPROG), 3185 * so start it first. 3186 */ 3187 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3188 } 3189 3190 usbd_status 3191 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3192 { 3193 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3194 usb_device_request_t *req; 3195 void *buf = NULL; 3196 int port, x; 3197 int s, len, value, index, status, change, l, totlen = 0; 3198 usb_port_status_t ps; 3199 usbd_status err; 3200 3201 if (sc->sc_dying) 3202 return (USBD_IOERROR); 3203 3204 #ifdef DIAGNOSTIC 3205 if (!(xfer->rqflags & URQ_REQUEST)) 3206 panic("uhci_root_ctrl_transfer: not a request"); 3207 #endif 3208 req = &xfer->request; 3209 3210 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3211 req->bmRequestType, req->bRequest)); 3212 3213 len = UGETW(req->wLength); 3214 value = UGETW(req->wValue); 3215 index = UGETW(req->wIndex); 3216 3217 if (len != 0) 3218 buf = KERNADDR(&xfer->dmabuf, 0); 3219 3220 #define C(x,y) ((x) | ((y) << 8)) 3221 switch(C(req->bRequest, req->bmRequestType)) { 3222 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3223 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3224 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3225 /* 3226 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3227 * for the integrated root hub. 3228 */ 3229 break; 3230 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3231 if (len > 0) { 3232 *(u_int8_t *)buf = sc->sc_conf; 3233 totlen = 1; 3234 } 3235 break; 3236 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3237 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3238 if (len == 0) 3239 break; 3240 switch(value >> 8) { 3241 case UDESC_DEVICE: 3242 if ((value & 0xff) != 0) { 3243 err = USBD_IOERROR; 3244 goto ret; 3245 } 3246 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3247 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3248 memcpy(buf, &uhci_devd, l); 3249 break; 3250 case UDESC_CONFIG: 3251 if ((value & 0xff) != 0) { 3252 err = USBD_IOERROR; 3253 goto ret; 3254 } 3255 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3256 memcpy(buf, &uhci_confd, l); 3257 buf = (char *)buf + l; 3258 len -= l; 3259 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3260 totlen += l; 3261 memcpy(buf, &uhci_ifcd, l); 3262 buf = (char *)buf + l; 3263 len -= l; 3264 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3265 totlen += l; 3266 memcpy(buf, &uhci_endpd, l); 3267 break; 3268 case UDESC_STRING: 3269 *(u_int8_t *)buf = 0; 3270 totlen = 1; 3271 switch (value & 0xff) { 3272 case 0: /* Language table */ 3273 totlen = uhci_str(buf, len, "\001"); 3274 break; 3275 case 1: /* Vendor */ 3276 totlen = uhci_str(buf, len, sc->sc_vendor); 3277 break; 3278 case 2: /* Product */ 3279 totlen = uhci_str(buf, len, "UHCI root hub"); 3280 break; 3281 } 3282 break; 3283 default: 3284 err = USBD_IOERROR; 3285 goto ret; 3286 } 3287 break; 3288 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3289 if (len > 0) { 3290 *(u_int8_t *)buf = 0; 3291 totlen = 1; 3292 } 3293 break; 3294 case C(UR_GET_STATUS, UT_READ_DEVICE): 3295 if (len > 1) { 3296 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3297 totlen = 2; 3298 } 3299 break; 3300 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3301 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3302 if (len > 1) { 3303 USETW(((usb_status_t *)buf)->wStatus, 0); 3304 totlen = 2; 3305 } 3306 break; 3307 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3308 if (value >= USB_MAX_DEVICES) { 3309 err = USBD_IOERROR; 3310 goto ret; 3311 } 3312 sc->sc_addr = value; 3313 break; 3314 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3315 if (value != 0 && value != 1) { 3316 err = USBD_IOERROR; 3317 goto ret; 3318 } 3319 sc->sc_conf = value; 3320 break; 3321 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3322 break; 3323 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3324 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3325 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3326 err = USBD_IOERROR; 3327 goto ret; 3328 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3329 break; 3330 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3331 break; 3332 /* Hub requests */ 3333 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3334 break; 3335 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3336 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3337 "port=%d feature=%d\n", 3338 index, value)); 3339 if (index == 1) 3340 port = UHCI_PORTSC1; 3341 else if (index == 2) 3342 port = UHCI_PORTSC2; 3343 else { 3344 err = USBD_IOERROR; 3345 goto ret; 3346 } 3347 switch(value) { 3348 case UHF_PORT_ENABLE: 3349 x = URWMASK(UREAD2(sc, port)); 3350 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3351 break; 3352 case UHF_PORT_SUSPEND: 3353 x = URWMASK(UREAD2(sc, port)); 3354 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3355 break; 3356 case UHF_PORT_RESET: 3357 x = URWMASK(UREAD2(sc, port)); 3358 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3359 break; 3360 case UHF_C_PORT_CONNECTION: 3361 x = URWMASK(UREAD2(sc, port)); 3362 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3363 break; 3364 case UHF_C_PORT_ENABLE: 3365 x = URWMASK(UREAD2(sc, port)); 3366 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3367 break; 3368 case UHF_C_PORT_OVER_CURRENT: 3369 x = URWMASK(UREAD2(sc, port)); 3370 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3371 break; 3372 case UHF_C_PORT_RESET: 3373 sc->sc_isreset = 0; 3374 err = USBD_NORMAL_COMPLETION; 3375 goto ret; 3376 case UHF_PORT_CONNECTION: 3377 case UHF_PORT_OVER_CURRENT: 3378 case UHF_PORT_POWER: 3379 case UHF_PORT_LOW_SPEED: 3380 case UHF_C_PORT_SUSPEND: 3381 default: 3382 err = USBD_IOERROR; 3383 goto ret; 3384 } 3385 break; 3386 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3387 if (index == 1) 3388 port = UHCI_PORTSC1; 3389 else if (index == 2) 3390 port = UHCI_PORTSC2; 3391 else { 3392 err = USBD_IOERROR; 3393 goto ret; 3394 } 3395 if (len > 0) { 3396 *(u_int8_t *)buf = 3397 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3398 UHCI_PORTSC_LS_SHIFT; 3399 totlen = 1; 3400 } 3401 break; 3402 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3403 if (len == 0) 3404 break; 3405 if ((value & 0xff) != 0) { 3406 err = USBD_IOERROR; 3407 goto ret; 3408 } 3409 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3410 totlen = l; 3411 memcpy(buf, &uhci_hubd_piix, l); 3412 break; 3413 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3414 if (len != 4) { 3415 err = USBD_IOERROR; 3416 goto ret; 3417 } 3418 memset(buf, 0, len); 3419 totlen = len; 3420 break; 3421 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3422 if (index == 1) 3423 port = UHCI_PORTSC1; 3424 else if (index == 2) 3425 port = UHCI_PORTSC2; 3426 else { 3427 err = USBD_IOERROR; 3428 goto ret; 3429 } 3430 if (len != 4) { 3431 err = USBD_IOERROR; 3432 goto ret; 3433 } 3434 x = UREAD2(sc, port); 3435 status = change = 0; 3436 if (x & UHCI_PORTSC_CCS) 3437 status |= UPS_CURRENT_CONNECT_STATUS; 3438 if (x & UHCI_PORTSC_CSC) 3439 change |= UPS_C_CONNECT_STATUS; 3440 if (x & UHCI_PORTSC_PE) 3441 status |= UPS_PORT_ENABLED; 3442 if (x & UHCI_PORTSC_POEDC) 3443 change |= UPS_C_PORT_ENABLED; 3444 if (x & UHCI_PORTSC_OCI) 3445 status |= UPS_OVERCURRENT_INDICATOR; 3446 if (x & UHCI_PORTSC_OCIC) 3447 change |= UPS_C_OVERCURRENT_INDICATOR; 3448 if (x & UHCI_PORTSC_SUSP) 3449 status |= UPS_SUSPEND; 3450 if (x & UHCI_PORTSC_LSDA) 3451 status |= UPS_LOW_SPEED; 3452 status |= UPS_PORT_POWER; 3453 if (sc->sc_isreset) 3454 change |= UPS_C_PORT_RESET; 3455 USETW(ps.wPortStatus, status); 3456 USETW(ps.wPortChange, change); 3457 l = min(len, sizeof ps); 3458 memcpy(buf, &ps, l); 3459 totlen = l; 3460 break; 3461 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3462 err = USBD_IOERROR; 3463 goto ret; 3464 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3465 break; 3466 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3467 if (index == 1) 3468 port = UHCI_PORTSC1; 3469 else if (index == 2) 3470 port = UHCI_PORTSC2; 3471 else { 3472 err = USBD_IOERROR; 3473 goto ret; 3474 } 3475 switch(value) { 3476 case UHF_PORT_ENABLE: 3477 x = URWMASK(UREAD2(sc, port)); 3478 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3479 break; 3480 case UHF_PORT_SUSPEND: 3481 x = URWMASK(UREAD2(sc, port)); 3482 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3483 break; 3484 case UHF_PORT_RESET: 3485 err = uhci_portreset(sc, index); 3486 goto ret; 3487 case UHF_PORT_POWER: 3488 /* Pretend we turned on power */ 3489 err = USBD_NORMAL_COMPLETION; 3490 goto ret; 3491 case UHF_C_PORT_CONNECTION: 3492 case UHF_C_PORT_ENABLE: 3493 case UHF_C_PORT_OVER_CURRENT: 3494 case UHF_PORT_CONNECTION: 3495 case UHF_PORT_OVER_CURRENT: 3496 case UHF_PORT_LOW_SPEED: 3497 case UHF_C_PORT_SUSPEND: 3498 case UHF_C_PORT_RESET: 3499 default: 3500 err = USBD_IOERROR; 3501 goto ret; 3502 } 3503 break; 3504 default: 3505 err = USBD_IOERROR; 3506 goto ret; 3507 } 3508 xfer->actlen = totlen; 3509 err = USBD_NORMAL_COMPLETION; 3510 ret: 3511 xfer->status = err; 3512 s = splusb(); 3513 usb_transfer_complete(xfer); 3514 splx(s); 3515 return (USBD_IN_PROGRESS); 3516 } 3517 3518 /* Abort a root control request. */ 3519 void 3520 uhci_root_ctrl_abort(usbd_xfer_handle xfer __unused) 3521 { 3522 /* Nothing to do, all transfers are synchronous. */ 3523 } 3524 3525 /* Close the root pipe. */ 3526 void 3527 uhci_root_ctrl_close(usbd_pipe_handle pipe __unused) 3528 { 3529 DPRINTF(("uhci_root_ctrl_close\n")); 3530 } 3531 3532 /* Abort a root interrupt request. */ 3533 void 3534 uhci_root_intr_abort(usbd_xfer_handle xfer) 3535 { 3536 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3537 3538 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3539 sc->sc_intr_xfer = NULL; 3540 3541 if (xfer->pipe->intrxfer == xfer) { 3542 DPRINTF(("uhci_root_intr_abort: remove\n")); 3543 xfer->pipe->intrxfer = 0; 3544 } 3545 xfer->status = USBD_CANCELLED; 3546 #ifdef DIAGNOSTIC 3547 UXFER(xfer)->iinfo.isdone = 1; 3548 #endif 3549 usb_transfer_complete(xfer); 3550 } 3551 3552 usbd_status 3553 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3554 { 3555 usbd_status err; 3556 3557 /* Insert last in queue. */ 3558 err = usb_insert_transfer(xfer); 3559 if (err) 3560 return (err); 3561 3562 /* 3563 * Pipe isn't running (otherwise err would be USBD_INPROG), 3564 * start first 3565 */ 3566 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3567 } 3568 3569 /* Start a transfer on the root interrupt pipe */ 3570 usbd_status 3571 uhci_root_intr_start(usbd_xfer_handle xfer) 3572 { 3573 usbd_pipe_handle pipe = xfer->pipe; 3574 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3575 unsigned int ival; 3576 3577 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3578 xfer, xfer->length, xfer->flags)); 3579 3580 if (sc->sc_dying) 3581 return (USBD_IOERROR); 3582 3583 /* XXX temporary variable needed to avoid gcc3 warning */ 3584 ival = xfer->pipe->endpoint->edesc->bInterval; 3585 sc->sc_ival = mstohz(ival); 3586 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3587 sc->sc_intr_xfer = xfer; 3588 return (USBD_IN_PROGRESS); 3589 } 3590 3591 /* Close the root interrupt pipe. */ 3592 void 3593 uhci_root_intr_close(usbd_pipe_handle pipe) 3594 { 3595 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3596 3597 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3598 sc->sc_intr_xfer = NULL; 3599 DPRINTF(("uhci_root_intr_close\n")); 3600 } 3601
Indexes created Tue Sep 30 20:09:53 GMT 2025