uhci.c revision 1.207
1 /* $NetBSD: uhci.c,v 1.207 2007/02/10 07:52:29 mlelstv 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 1.207 2007/02/10 07:52:29 mlelstv 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 } 705 xfer->busy_free = XFER_FREE; 706 if (!UXFER(xfer)->iinfo.isdone) { 707 printf("uhci_freex: !isdone\n"); 708 } 709 #endif 710 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 711 } 712 713 /* 714 * Shut down the controller when the system is going down. 715 */ 716 void 717 uhci_shutdown(void *v) 718 { 719 uhci_softc_t *sc = v; 720 int s; 721 722 DPRINTF(("uhci_shutdown: stopping the HC\n")); 723 724 /* 725 * Use polling mode to prevent the interrupts shutting 726 * us down before we shut them down. 727 */ 728 s = splhardusb(); 729 sc->sc_bus.use_polling++; 730 uhci_run(sc, 0); /* stop the controller */ 731 sc->sc_bus.use_polling--; 732 splx(s); 733 } 734 735 /* 736 * Handle suspend/resume. 737 * 738 * We need to switch to polling mode here, because this routine is 739 * called from an interrupt context. This is all right since we 740 * are almost suspended anyway. 741 */ 742 void 743 uhci_power(int why, void *v) 744 { 745 uhci_softc_t *sc = v; 746 int cmd; 747 int s; 748 749 s = splhardusb(); 750 cmd = UREAD2(sc, UHCI_CMD); 751 752 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 753 sc, why, sc->sc_suspend, cmd)); 754 755 switch (why) { 756 case PWR_SUSPEND: 757 case PWR_STANDBY: 758 #ifdef UHCI_DEBUG 759 if (uhcidebug > 2) 760 uhci_dumpregs(sc); 761 #endif 762 if (sc->sc_intr_xfer != NULL) 763 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 764 sc->sc_intr_xfer); 765 sc->sc_bus.use_polling++; 766 uhci_run(sc, 0); /* stop the controller */ 767 768 /* save some state if BIOS doesn't */ 769 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 770 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 771 772 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 773 774 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 775 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 776 sc->sc_suspend = why; 777 sc->sc_bus.use_polling--; 778 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 779 break; 780 case PWR_RESUME: 781 #ifdef DIAGNOSTIC 782 if (sc->sc_suspend == PWR_RESUME) 783 printf("uhci_power: weird, resume without suspend.\n"); 784 #endif 785 sc->sc_bus.use_polling++; 786 sc->sc_suspend = why; 787 if (cmd & UHCI_CMD_RS) 788 uhci_run(sc, 0); /* in case BIOS has started it */ 789 790 /* restore saved state */ 791 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 792 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 793 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 794 795 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 796 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 797 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 798 UHCICMD(sc, UHCI_CMD_MAXP); 799 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 800 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 801 uhci_run(sc, 1); /* and start traffic again */ 802 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 803 sc->sc_bus.use_polling--; 804 if (sc->sc_intr_xfer != NULL) 805 usb_callout(sc->sc_poll_handle, sc->sc_ival, 806 uhci_poll_hub, sc->sc_intr_xfer); 807 #ifdef UHCI_DEBUG 808 if (uhcidebug > 2) 809 uhci_dumpregs(sc); 810 #endif 811 break; 812 case PWR_SOFTSUSPEND: 813 case PWR_SOFTSTANDBY: 814 case PWR_SOFTRESUME: 815 break; 816 } 817 splx(s); 818 } 819 820 #ifdef UHCI_DEBUG 821 Static void 822 uhci_dumpregs(uhci_softc_t *sc) 823 { 824 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 825 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 826 USBDEVNAME(sc->sc_bus.bdev), 827 UREAD2(sc, UHCI_CMD), 828 UREAD2(sc, UHCI_STS), 829 UREAD2(sc, UHCI_INTR), 830 UREAD2(sc, UHCI_FRNUM), 831 UREAD4(sc, UHCI_FLBASEADDR), 832 UREAD1(sc, UHCI_SOF), 833 UREAD2(sc, UHCI_PORTSC1), 834 UREAD2(sc, UHCI_PORTSC2))); 835 } 836 837 void 838 uhci_dump_td(uhci_soft_td_t *p) 839 { 840 char sbuf[128], sbuf2[128]; 841 842 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 843 "token=0x%08lx buffer=0x%08lx\n", 844 p, (long)p->physaddr, 845 (long)le32toh(p->td.td_link), 846 (long)le32toh(p->td.td_status), 847 (long)le32toh(p->td.td_token), 848 (long)le32toh(p->td.td_buffer))); 849 850 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 851 sbuf, sizeof(sbuf)); 852 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 853 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 854 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 855 sbuf2, sizeof(sbuf2)); 856 857 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 858 "D=%d,maxlen=%d\n", sbuf, sbuf2, 859 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 860 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 861 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 862 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 863 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 864 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 865 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 866 } 867 868 void 869 uhci_dump_qh(uhci_soft_qh_t *sqh) 870 { 871 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 872 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 873 le32toh(sqh->qh.qh_elink))); 874 } 875 876 877 #if 1 878 void 879 uhci_dump(void) 880 { 881 uhci_dump_all(thesc); 882 } 883 #endif 884 885 void 886 uhci_dump_all(uhci_softc_t *sc) 887 { 888 uhci_dumpregs(sc); 889 printf("intrs=%d\n", sc->sc_bus.no_intrs); 890 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 891 uhci_dump_qh(sc->sc_lctl_start); 892 } 893 894 895 void 896 uhci_dump_qhs(uhci_soft_qh_t *sqh) 897 { 898 uhci_dump_qh(sqh); 899 900 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 901 * Traverses sideways first, then down. 902 * 903 * QH1 904 * QH2 905 * No QH 906 * TD2.1 907 * TD2.2 908 * TD1.1 909 * etc. 910 * 911 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 912 */ 913 914 915 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 916 uhci_dump_qhs(sqh->hlink); 917 else 918 DPRINTF(("No QH\n")); 919 920 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 921 uhci_dump_tds(sqh->elink); 922 else 923 DPRINTF(("No TD\n")); 924 } 925 926 void 927 uhci_dump_tds(uhci_soft_td_t *std) 928 { 929 uhci_soft_td_t *td; 930 931 for(td = std; td != NULL; td = td->link.std) { 932 uhci_dump_td(td); 933 934 /* Check whether the link pointer in this TD marks 935 * the link pointer as end of queue. This avoids 936 * printing the free list in case the queue/TD has 937 * already been moved there (seatbelt). 938 */ 939 if (le32toh(td->td.td_link) & UHCI_PTR_T || 940 le32toh(td->td.td_link) == 0) 941 break; 942 } 943 } 944 945 Static void 946 uhci_dump_ii(uhci_intr_info_t *ii) 947 { 948 usbd_pipe_handle pipe; 949 usb_endpoint_descriptor_t *ed; 950 usbd_device_handle dev; 951 952 #ifdef DIAGNOSTIC 953 #define DONE ii->isdone 954 #else 955 #define DONE 0 956 #endif 957 if (ii == NULL) { 958 printf("ii NULL\n"); 959 return; 960 } 961 if (ii->xfer == NULL) { 962 printf("ii %p: done=%d xfer=NULL\n", 963 ii, DONE); 964 return; 965 } 966 pipe = ii->xfer->pipe; 967 if (pipe == NULL) { 968 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 969 ii, DONE, ii->xfer); 970 return; 971 } 972 if (pipe->endpoint == NULL) { 973 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 974 ii, DONE, ii->xfer, pipe); 975 return; 976 } 977 if (pipe->device == NULL) { 978 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 979 ii, DONE, ii->xfer, pipe); 980 return; 981 } 982 ed = pipe->endpoint->edesc; 983 dev = pipe->device; 984 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", 985 ii, DONE, ii->xfer, dev, 986 UGETW(dev->ddesc.idVendor), 987 UGETW(dev->ddesc.idProduct), 988 dev->address, pipe, 989 ed->bEndpointAddress, ed->bmAttributes); 990 #undef DONE 991 } 992 993 void uhci_dump_iis(struct uhci_softc *sc); 994 void 995 uhci_dump_iis(struct uhci_softc *sc) 996 { 997 uhci_intr_info_t *ii; 998 999 printf("intr_info list:\n"); 1000 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1001 uhci_dump_ii(ii); 1002 } 1003 1004 void iidump(void); 1005 void iidump(void) { uhci_dump_iis(thesc); } 1006 1007 #endif 1008 1009 /* 1010 * This routine is executed periodically and simulates interrupts 1011 * from the root controller interrupt pipe for port status change. 1012 */ 1013 void 1014 uhci_poll_hub(void *addr) 1015 { 1016 usbd_xfer_handle xfer = addr; 1017 usbd_pipe_handle pipe = xfer->pipe; 1018 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1019 int s; 1020 u_char *p; 1021 1022 DPRINTFN(20, ("uhci_poll_hub\n")); 1023 1024 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1025 1026 p = KERNADDR(&xfer->dmabuf, 0); 1027 p[0] = 0; 1028 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1029 p[0] |= 1<<1; 1030 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1031 p[0] |= 1<<2; 1032 if (p[0] == 0) 1033 /* No change, try again in a while */ 1034 return; 1035 1036 xfer->actlen = 1; 1037 xfer->status = USBD_NORMAL_COMPLETION; 1038 s = splusb(); 1039 xfer->device->bus->intr_context++; 1040 usb_transfer_complete(xfer); 1041 xfer->device->bus->intr_context--; 1042 splx(s); 1043 } 1044 1045 void 1046 uhci_root_intr_done(usbd_xfer_handle xfer) 1047 { 1048 } 1049 1050 void 1051 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1052 { 1053 } 1054 1055 /* 1056 * Let the last QH loop back to the high speed control transfer QH. 1057 * This is what intel calls "bandwidth reclamation" and improves 1058 * USB performance a lot for some devices. 1059 * If we are already looping, just count it. 1060 */ 1061 void 1062 uhci_add_loop(uhci_softc_t *sc) { 1063 #ifdef UHCI_DEBUG 1064 if (uhcinoloop) 1065 return; 1066 #endif 1067 if (++sc->sc_loops == 1) { 1068 DPRINTFN(5,("uhci_start_loop: add\n")); 1069 /* Note, we don't loop back the soft pointer. */ 1070 sc->sc_last_qh->qh.qh_hlink = 1071 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1072 } 1073 } 1074 1075 void 1076 uhci_rem_loop(uhci_softc_t *sc) { 1077 #ifdef UHCI_DEBUG 1078 if (uhcinoloop) 1079 return; 1080 #endif 1081 if (--sc->sc_loops == 0) { 1082 DPRINTFN(5,("uhci_end_loop: remove\n")); 1083 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1084 } 1085 } 1086 1087 /* Add high speed control QH, called at splusb(). */ 1088 void 1089 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1090 { 1091 uhci_soft_qh_t *eqh; 1092 1093 SPLUSBCHECK; 1094 1095 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1096 eqh = sc->sc_hctl_end; 1097 sqh->hlink = eqh->hlink; 1098 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1099 eqh->hlink = sqh; 1100 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1101 sc->sc_hctl_end = sqh; 1102 #ifdef UHCI_CTL_LOOP 1103 uhci_add_loop(sc); 1104 #endif 1105 } 1106 1107 /* Remove high speed control QH, called at splusb(). */ 1108 void 1109 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1110 { 1111 uhci_soft_qh_t *pqh; 1112 1113 SPLUSBCHECK; 1114 1115 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1116 #ifdef UHCI_CTL_LOOP 1117 uhci_rem_loop(sc); 1118 #endif 1119 /* 1120 * The T bit should be set in the elink of the QH so that the HC 1121 * doesn't follow the pointer. This condition may fail if the 1122 * the transferred packet was short so that the QH still points 1123 * at the last used TD. 1124 * In this case we set the T bit and wait a little for the HC 1125 * to stop looking at the TD. 1126 */ 1127 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1128 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1129 delay(UHCI_QH_REMOVE_DELAY); 1130 } 1131 1132 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1133 pqh->hlink = sqh->hlink; 1134 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1135 delay(UHCI_QH_REMOVE_DELAY); 1136 if (sc->sc_hctl_end == sqh) 1137 sc->sc_hctl_end = pqh; 1138 } 1139 1140 /* Add low speed control QH, called at splusb(). */ 1141 void 1142 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1143 { 1144 uhci_soft_qh_t *eqh; 1145 1146 SPLUSBCHECK; 1147 1148 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1149 eqh = sc->sc_lctl_end; 1150 sqh->hlink = eqh->hlink; 1151 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1152 eqh->hlink = sqh; 1153 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1154 sc->sc_lctl_end = sqh; 1155 } 1156 1157 /* Remove low speed control QH, called at splusb(). */ 1158 void 1159 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1160 { 1161 uhci_soft_qh_t *pqh; 1162 1163 SPLUSBCHECK; 1164 1165 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1166 /* See comment in uhci_remove_hs_ctrl() */ 1167 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1168 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1169 delay(UHCI_QH_REMOVE_DELAY); 1170 } 1171 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1172 pqh->hlink = sqh->hlink; 1173 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1174 delay(UHCI_QH_REMOVE_DELAY); 1175 if (sc->sc_lctl_end == sqh) 1176 sc->sc_lctl_end = pqh; 1177 } 1178 1179 /* Add bulk QH, called at splusb(). */ 1180 void 1181 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1182 { 1183 uhci_soft_qh_t *eqh; 1184 1185 SPLUSBCHECK; 1186 1187 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1188 eqh = sc->sc_bulk_end; 1189 sqh->hlink = eqh->hlink; 1190 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1191 eqh->hlink = sqh; 1192 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1193 sc->sc_bulk_end = sqh; 1194 uhci_add_loop(sc); 1195 } 1196 1197 /* Remove bulk QH, called at splusb(). */ 1198 void 1199 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1200 { 1201 uhci_soft_qh_t *pqh; 1202 1203 SPLUSBCHECK; 1204 1205 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1206 uhci_rem_loop(sc); 1207 /* See comment in uhci_remove_hs_ctrl() */ 1208 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1209 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1210 delay(UHCI_QH_REMOVE_DELAY); 1211 } 1212 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1213 pqh->hlink = sqh->hlink; 1214 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1215 delay(UHCI_QH_REMOVE_DELAY); 1216 if (sc->sc_bulk_end == sqh) 1217 sc->sc_bulk_end = pqh; 1218 } 1219 1220 Static int uhci_intr1(uhci_softc_t *); 1221 1222 int 1223 uhci_intr(void *arg) 1224 { 1225 uhci_softc_t *sc = arg; 1226 1227 if (sc->sc_dying) 1228 return (0); 1229 1230 if (sc->sc_bus.use_polling) { 1231 #ifdef DIAGNOSTIC 1232 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1233 #endif 1234 return (0); 1235 } 1236 1237 return (uhci_intr1(sc)); 1238 } 1239 1240 int 1241 uhci_intr1(uhci_softc_t *sc) 1242 { 1243 int status; 1244 int ack; 1245 1246 #ifdef UHCI_DEBUG 1247 if (uhcidebug > 15) { 1248 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1249 uhci_dumpregs(sc); 1250 } 1251 #endif 1252 1253 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1254 if (status == 0) /* The interrupt was not for us. */ 1255 return (0); 1256 1257 if (sc->sc_suspend != PWR_RESUME) { 1258 #ifdef DIAGNOSTIC 1259 printf("%s: interrupt while not operating ignored\n", 1260 USBDEVNAME(sc->sc_bus.bdev)); 1261 #endif 1262 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1263 return (0); 1264 } 1265 1266 ack = 0; 1267 if (status & UHCI_STS_USBINT) 1268 ack |= UHCI_STS_USBINT; 1269 if (status & UHCI_STS_USBEI) 1270 ack |= UHCI_STS_USBEI; 1271 if (status & UHCI_STS_RD) { 1272 ack |= UHCI_STS_RD; 1273 #ifdef UHCI_DEBUG 1274 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1275 #endif 1276 } 1277 if (status & UHCI_STS_HSE) { 1278 ack |= UHCI_STS_HSE; 1279 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1280 } 1281 if (status & UHCI_STS_HCPE) { 1282 ack |= UHCI_STS_HCPE; 1283 printf("%s: host controller process error\n", 1284 USBDEVNAME(sc->sc_bus.bdev)); 1285 } 1286 if (status & UHCI_STS_HCH) { 1287 /* no acknowledge needed */ 1288 if (!sc->sc_dying) { 1289 printf("%s: host controller halted\n", 1290 USBDEVNAME(sc->sc_bus.bdev)); 1291 #ifdef UHCI_DEBUG 1292 uhci_dump_all(sc); 1293 #endif 1294 } 1295 sc->sc_dying = 1; 1296 } 1297 1298 if (!ack) 1299 return (0); /* nothing to acknowledge */ 1300 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1301 1302 sc->sc_bus.no_intrs++; 1303 usb_schedsoftintr(&sc->sc_bus); 1304 1305 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1306 1307 return (1); 1308 } 1309 1310 void 1311 uhci_softintr(void *v) 1312 { 1313 uhci_softc_t *sc = v; 1314 uhci_intr_info_t *ii, *nextii; 1315 1316 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1317 sc->sc_bus.intr_context)); 1318 1319 sc->sc_bus.intr_context++; 1320 1321 /* 1322 * Interrupts on UHCI really suck. When the host controller 1323 * interrupts because a transfer is completed there is no 1324 * way of knowing which transfer it was. You can scan down 1325 * the TDs and QHs of the previous frame to limit the search, 1326 * but that assumes that the interrupt was not delayed by more 1327 * than 1 ms, which may not always be true (e.g. after debug 1328 * output on a slow console). 1329 * We scan all interrupt descriptors to see if any have 1330 * completed. 1331 */ 1332 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1333 nextii = LIST_NEXT(ii, list); 1334 uhci_check_intr(sc, ii); 1335 } 1336 1337 #ifdef USB_USE_SOFTINTR 1338 if (sc->sc_softwake) { 1339 sc->sc_softwake = 0; 1340 wakeup(&sc->sc_softwake); 1341 } 1342 #endif /* USB_USE_SOFTINTR */ 1343 1344 sc->sc_bus.intr_context--; 1345 } 1346 1347 /* Check for an interrupt. */ 1348 void 1349 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1350 { 1351 uhci_soft_td_t *std, *lstd; 1352 u_int32_t status; 1353 1354 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1355 #ifdef DIAGNOSTIC 1356 if (ii == NULL) { 1357 printf("uhci_check_intr: no ii? %p\n", ii); 1358 return; 1359 } 1360 #endif 1361 if (ii->xfer->status == USBD_CANCELLED || 1362 ii->xfer->status == USBD_TIMEOUT) { 1363 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1364 return; 1365 } 1366 1367 if (ii->stdstart == NULL) 1368 return; 1369 lstd = ii->stdend; 1370 #ifdef DIAGNOSTIC 1371 if (lstd == NULL) { 1372 printf("uhci_check_intr: std==0\n"); 1373 return; 1374 } 1375 #endif 1376 /* 1377 * If the last TD is still active we need to check whether there 1378 * is an error somewhere in the middle, or whether there was a 1379 * short packet (SPD and not ACTIVE). 1380 */ 1381 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1382 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1383 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1384 status = le32toh(std->td.td_status); 1385 /* If there's an active TD the xfer isn't done. */ 1386 if (status & UHCI_TD_ACTIVE) 1387 break; 1388 /* Any kind of error makes the xfer done. */ 1389 if (status & UHCI_TD_STALLED) 1390 goto done; 1391 /* We want short packets, and it is short: it's done */ 1392 if ((status & UHCI_TD_SPD) && 1393 UHCI_TD_GET_ACTLEN(status) < 1394 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1395 goto done; 1396 } 1397 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1398 ii, ii->stdstart)); 1399 return; 1400 } 1401 done: 1402 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1403 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1404 uhci_idone(ii); 1405 } 1406 1407 /* Called at splusb() */ 1408 void 1409 uhci_idone(uhci_intr_info_t *ii) 1410 { 1411 usbd_xfer_handle xfer = ii->xfer; 1412 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1413 uhci_soft_td_t *std; 1414 u_int32_t status = 0, nstatus; 1415 int actlen; 1416 1417 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1418 #ifdef DIAGNOSTIC 1419 { 1420 int s = splhigh(); 1421 if (ii->isdone) { 1422 splx(s); 1423 #ifdef UHCI_DEBUG 1424 printf("uhci_idone: ii is done!\n "); 1425 uhci_dump_ii(ii); 1426 #else 1427 printf("uhci_idone: ii=%p is done!\n", ii); 1428 #endif 1429 return; 1430 } 1431 ii->isdone = 1; 1432 splx(s); 1433 } 1434 #endif 1435 1436 if (xfer->nframes != 0) { 1437 /* Isoc transfer, do things differently. */ 1438 uhci_soft_td_t **stds = upipe->u.iso.stds; 1439 int i, n, nframes, len; 1440 1441 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1442 1443 nframes = xfer->nframes; 1444 actlen = 0; 1445 n = UXFER(xfer)->curframe; 1446 for (i = 0; i < nframes; i++) { 1447 std = stds[n]; 1448 #ifdef UHCI_DEBUG 1449 if (uhcidebug > 5) { 1450 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1451 uhci_dump_td(std); 1452 } 1453 #endif 1454 if (++n >= UHCI_VFRAMELIST_COUNT) 1455 n = 0; 1456 status = le32toh(std->td.td_status); 1457 len = UHCI_TD_GET_ACTLEN(status); 1458 xfer->frlengths[i] = len; 1459 actlen += len; 1460 } 1461 upipe->u.iso.inuse -= nframes; 1462 xfer->actlen = actlen; 1463 xfer->status = USBD_NORMAL_COMPLETION; 1464 goto end; 1465 } 1466 1467 #ifdef UHCI_DEBUG 1468 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1469 ii, xfer, upipe)); 1470 if (uhcidebug > 10) 1471 uhci_dump_tds(ii->stdstart); 1472 #endif 1473 1474 /* The transfer is done, compute actual length and status. */ 1475 actlen = 0; 1476 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1477 nstatus = le32toh(std->td.td_status); 1478 if (nstatus & UHCI_TD_ACTIVE) 1479 break; 1480 1481 status = nstatus; 1482 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1483 UHCI_TD_PID_SETUP) 1484 actlen += UHCI_TD_GET_ACTLEN(status); 1485 else { 1486 /* 1487 * UHCI will report CRCTO in addition to a STALL or NAK 1488 * for a SETUP transaction. See section 3.2.2, "TD 1489 * CONTROL AND STATUS". 1490 */ 1491 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1492 status &= ~UHCI_TD_CRCTO; 1493 } 1494 } 1495 /* If there are left over TDs we need to update the toggle. */ 1496 if (std != NULL) 1497 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1498 1499 status &= UHCI_TD_ERROR; 1500 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1501 actlen, status)); 1502 xfer->actlen = actlen; 1503 if (status != 0) { 1504 #ifdef UHCI_DEBUG 1505 char sbuf[128]; 1506 1507 bitmask_snprintf((u_int32_t)status, 1508 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1509 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1510 sbuf, sizeof(sbuf)); 1511 1512 DPRINTFN((status == UHCI_TD_STALLED)*10, 1513 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1514 "status 0x%s\n", 1515 xfer->pipe->device->address, 1516 xfer->pipe->endpoint->edesc->bEndpointAddress, 1517 sbuf)); 1518 #endif 1519 1520 if (status == UHCI_TD_STALLED) 1521 xfer->status = USBD_STALLED; 1522 else 1523 xfer->status = USBD_IOERROR; /* more info XXX */ 1524 } else { 1525 xfer->status = USBD_NORMAL_COMPLETION; 1526 } 1527 1528 end: 1529 usb_transfer_complete(xfer); 1530 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1531 } 1532 1533 /* 1534 * Called when a request does not complete. 1535 */ 1536 void 1537 uhci_timeout(void *addr) 1538 { 1539 uhci_intr_info_t *ii = addr; 1540 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1541 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1542 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1543 1544 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1545 1546 if (sc->sc_dying) { 1547 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1548 return; 1549 } 1550 1551 /* Execute the abort in a process context. */ 1552 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1553 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1554 USB_TASKQ_HC); 1555 } 1556 1557 void 1558 uhci_timeout_task(void *addr) 1559 { 1560 usbd_xfer_handle xfer = addr; 1561 int s; 1562 1563 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1564 1565 s = splusb(); 1566 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1567 splx(s); 1568 } 1569 1570 /* 1571 * Wait here until controller claims to have an interrupt. 1572 * Then call uhci_intr and return. Use timeout to avoid waiting 1573 * too long. 1574 * Only used during boot when interrupts are not enabled yet. 1575 */ 1576 void 1577 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1578 { 1579 int timo = xfer->timeout; 1580 uhci_intr_info_t *ii; 1581 1582 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1583 1584 xfer->status = USBD_IN_PROGRESS; 1585 for (; timo >= 0; timo--) { 1586 usb_delay_ms(&sc->sc_bus, 1); 1587 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1588 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1589 uhci_intr1(sc); 1590 if (xfer->status != USBD_IN_PROGRESS) 1591 return; 1592 } 1593 } 1594 1595 /* Timeout */ 1596 DPRINTF(("uhci_waitintr: timeout\n")); 1597 for (ii = LIST_FIRST(&sc->sc_intrhead); 1598 ii != NULL && ii->xfer != xfer; 1599 ii = LIST_NEXT(ii, list)) 1600 ; 1601 #ifdef DIAGNOSTIC 1602 if (ii == NULL) 1603 panic("uhci_waitintr: lost intr_info"); 1604 #endif 1605 uhci_idone(ii); 1606 } 1607 1608 void 1609 uhci_poll(struct usbd_bus *bus) 1610 { 1611 uhci_softc_t *sc = (uhci_softc_t *)bus; 1612 1613 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1614 uhci_intr1(sc); 1615 } 1616 1617 void 1618 uhci_reset(uhci_softc_t *sc) 1619 { 1620 int n; 1621 1622 UHCICMD(sc, UHCI_CMD_HCRESET); 1623 /* The reset bit goes low when the controller is done. */ 1624 for (n = 0; n < UHCI_RESET_TIMEOUT && 1625 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1626 usb_delay_ms(&sc->sc_bus, 1); 1627 if (n >= UHCI_RESET_TIMEOUT) 1628 printf("%s: controller did not reset\n", 1629 USBDEVNAME(sc->sc_bus.bdev)); 1630 } 1631 1632 usbd_status 1633 uhci_run(uhci_softc_t *sc, int run) 1634 { 1635 int s, n, running; 1636 u_int16_t cmd; 1637 1638 run = run != 0; 1639 s = splhardusb(); 1640 DPRINTF(("uhci_run: setting run=%d\n", run)); 1641 cmd = UREAD2(sc, UHCI_CMD); 1642 if (run) 1643 cmd |= UHCI_CMD_RS; 1644 else 1645 cmd &= ~UHCI_CMD_RS; 1646 UHCICMD(sc, cmd); 1647 for(n = 0; n < 10; n++) { 1648 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1649 /* return when we've entered the state we want */ 1650 if (run == running) { 1651 splx(s); 1652 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1653 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1654 return (USBD_NORMAL_COMPLETION); 1655 } 1656 usb_delay_ms(&sc->sc_bus, 1); 1657 } 1658 splx(s); 1659 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1660 run ? "start" : "stop"); 1661 return (USBD_IOERROR); 1662 } 1663 1664 /* 1665 * Memory management routines. 1666 * uhci_alloc_std allocates TDs 1667 * uhci_alloc_sqh allocates QHs 1668 * These two routines do their own free list management, 1669 * partly for speed, partly because allocating DMAable memory 1670 * has page size granularaity so much memory would be wasted if 1671 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1672 */ 1673 1674 uhci_soft_td_t * 1675 uhci_alloc_std(uhci_softc_t *sc) 1676 { 1677 uhci_soft_td_t *std; 1678 usbd_status err; 1679 int i, offs; 1680 usb_dma_t dma; 1681 1682 if (sc->sc_freetds == NULL) { 1683 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1684 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1685 UHCI_TD_ALIGN, &dma); 1686 if (err) 1687 return (0); 1688 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1689 offs = i * UHCI_STD_SIZE; 1690 std = KERNADDR(&dma, offs); 1691 std->physaddr = DMAADDR(&dma, offs); 1692 std->link.std = sc->sc_freetds; 1693 sc->sc_freetds = std; 1694 } 1695 } 1696 std = sc->sc_freetds; 1697 sc->sc_freetds = std->link.std; 1698 memset(&std->td, 0, sizeof(uhci_td_t)); 1699 return std; 1700 } 1701 1702 void 1703 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1704 { 1705 #ifdef DIAGNOSTIC 1706 #define TD_IS_FREE 0x12345678 1707 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1708 printf("uhci_free_std: freeing free TD %p\n", std); 1709 return; 1710 } 1711 std->td.td_token = htole32(TD_IS_FREE); 1712 #endif 1713 std->link.std = sc->sc_freetds; 1714 sc->sc_freetds = std; 1715 } 1716 1717 uhci_soft_qh_t * 1718 uhci_alloc_sqh(uhci_softc_t *sc) 1719 { 1720 uhci_soft_qh_t *sqh; 1721 usbd_status err; 1722 int i, offs; 1723 usb_dma_t dma; 1724 1725 if (sc->sc_freeqhs == NULL) { 1726 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1727 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1728 UHCI_QH_ALIGN, &dma); 1729 if (err) 1730 return (0); 1731 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1732 offs = i * UHCI_SQH_SIZE; 1733 sqh = KERNADDR(&dma, offs); 1734 sqh->physaddr = DMAADDR(&dma, offs); 1735 sqh->hlink = sc->sc_freeqhs; 1736 sc->sc_freeqhs = sqh; 1737 } 1738 } 1739 sqh = sc->sc_freeqhs; 1740 sc->sc_freeqhs = sqh->hlink; 1741 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1742 return (sqh); 1743 } 1744 1745 void 1746 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1747 { 1748 sqh->hlink = sc->sc_freeqhs; 1749 sc->sc_freeqhs = sqh; 1750 } 1751 1752 void 1753 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1754 uhci_soft_td_t *stdend) 1755 { 1756 uhci_soft_td_t *p; 1757 1758 for (; std != stdend; std = p) { 1759 p = std->link.std; 1760 uhci_free_std(sc, std); 1761 } 1762 } 1763 1764 usbd_status 1765 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1766 int rd, u_int16_t flags, usb_dma_t *dma, 1767 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1768 { 1769 uhci_soft_td_t *p, *lastp; 1770 uhci_physaddr_t lastlink; 1771 int i, ntd, l, tog, maxp; 1772 u_int32_t status; 1773 int addr = upipe->pipe.device->address; 1774 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1775 1776 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1777 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1778 upipe->pipe.device->speed, flags)); 1779 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1780 if (maxp == 0) { 1781 printf("uhci_alloc_std_chain: maxp=0\n"); 1782 return (USBD_INVAL); 1783 } 1784 ntd = (len + maxp - 1) / maxp; 1785 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1786 ntd++; 1787 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1788 if (ntd == 0) { 1789 *sp = *ep = 0; 1790 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1791 return (USBD_NORMAL_COMPLETION); 1792 } 1793 tog = upipe->nexttoggle; 1794 if (ntd % 2 == 0) 1795 tog ^= 1; 1796 upipe->nexttoggle = tog ^ 1; 1797 lastp = NULL; 1798 lastlink = UHCI_PTR_T; 1799 ntd--; 1800 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1801 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1802 status |= UHCI_TD_LS; 1803 if (flags & USBD_SHORT_XFER_OK) 1804 status |= UHCI_TD_SPD; 1805 for (i = ntd; i >= 0; i--) { 1806 p = uhci_alloc_std(sc); 1807 if (p == NULL) { 1808 KASSERT(lastp != NULL); 1809 uhci_free_std_chain(sc, lastp, NULL); 1810 return (USBD_NOMEM); 1811 } 1812 p->link.std = lastp; 1813 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1814 lastp = p; 1815 lastlink = p->physaddr; 1816 p->td.td_status = htole32(status); 1817 if (i == ntd) { 1818 /* last TD */ 1819 l = len % maxp; 1820 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1821 l = maxp; 1822 *ep = p; 1823 } else 1824 l = maxp; 1825 p->td.td_token = 1826 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1827 UHCI_TD_OUT(l, endpt, addr, tog)); 1828 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1829 tog ^= 1; 1830 } 1831 *sp = lastp; 1832 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1833 upipe->nexttoggle)); 1834 return (USBD_NORMAL_COMPLETION); 1835 } 1836 1837 void 1838 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1839 { 1840 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1841 upipe->nexttoggle = 0; 1842 } 1843 1844 void 1845 uhci_noop(usbd_pipe_handle pipe) 1846 { 1847 } 1848 1849 usbd_status 1850 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1851 { 1852 usbd_status err; 1853 1854 /* Insert last in queue. */ 1855 err = usb_insert_transfer(xfer); 1856 if (err) 1857 return (err); 1858 1859 /* 1860 * Pipe isn't running (otherwise err would be USBD_INPROG), 1861 * so start it first. 1862 */ 1863 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1864 } 1865 1866 usbd_status 1867 uhci_device_bulk_start(usbd_xfer_handle xfer) 1868 { 1869 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1870 usbd_device_handle dev = upipe->pipe.device; 1871 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1872 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1873 uhci_soft_td_t *data, *dataend; 1874 uhci_soft_qh_t *sqh; 1875 usbd_status err; 1876 int len, isread, endpt; 1877 int s; 1878 1879 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1880 xfer, xfer->length, xfer->flags, ii)); 1881 1882 if (sc->sc_dying) 1883 return (USBD_IOERROR); 1884 1885 #ifdef DIAGNOSTIC 1886 if (xfer->rqflags & URQ_REQUEST) 1887 panic("uhci_device_bulk_transfer: a request"); 1888 #endif 1889 1890 len = xfer->length; 1891 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1892 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1893 sqh = upipe->u.bulk.sqh; 1894 1895 upipe->u.bulk.isread = isread; 1896 upipe->u.bulk.length = len; 1897 1898 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1899 &xfer->dmabuf, &data, &dataend); 1900 if (err) 1901 return (err); 1902 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1903 1904 #ifdef UHCI_DEBUG 1905 if (uhcidebug > 8) { 1906 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1907 uhci_dump_tds(data); 1908 } 1909 #endif 1910 1911 /* Set up interrupt info. */ 1912 ii->xfer = xfer; 1913 ii->stdstart = data; 1914 ii->stdend = dataend; 1915 #ifdef DIAGNOSTIC 1916 if (!ii->isdone) { 1917 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1918 } 1919 ii->isdone = 0; 1920 #endif 1921 1922 sqh->elink = data; 1923 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1924 1925 s = splusb(); 1926 uhci_add_bulk(sc, sqh); 1927 uhci_add_intr_info(sc, ii); 1928 1929 if (xfer->timeout && !sc->sc_bus.use_polling) { 1930 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1931 uhci_timeout, ii); 1932 } 1933 xfer->status = USBD_IN_PROGRESS; 1934 splx(s); 1935 1936 #ifdef UHCI_DEBUG 1937 if (uhcidebug > 10) { 1938 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1939 uhci_dump_tds(data); 1940 } 1941 #endif 1942 1943 if (sc->sc_bus.use_polling) 1944 uhci_waitintr(sc, xfer); 1945 1946 return (USBD_IN_PROGRESS); 1947 } 1948 1949 /* Abort a device bulk request. */ 1950 void 1951 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1952 { 1953 DPRINTF(("uhci_device_bulk_abort:\n")); 1954 uhci_abort_xfer(xfer, USBD_CANCELLED); 1955 } 1956 1957 /* 1958 * Abort a device request. 1959 * If this routine is called at splusb() it guarantees that the request 1960 * will be removed from the hardware scheduling and that the callback 1961 * for it will be called with USBD_CANCELLED status. 1962 * It's impossible to guarantee that the requested transfer will not 1963 * have happened since the hardware runs concurrently. 1964 * If the transaction has already happened we rely on the ordinary 1965 * interrupt processing to process it. 1966 */ 1967 void 1968 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1969 { 1970 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1971 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1972 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1973 uhci_soft_td_t *std; 1974 int s; 1975 int wake; 1976 1977 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1978 1979 if (sc->sc_dying) { 1980 /* If we're dying, just do the software part. */ 1981 s = splusb(); 1982 xfer->status = status; /* make software ignore it */ 1983 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1984 usb_transfer_complete(xfer); 1985 splx(s); 1986 return; 1987 } 1988 1989 if (xfer->device->bus->intr_context || !curproc) 1990 panic("uhci_abort_xfer: not in process context"); 1991 1992 /* 1993 * If an abort is already in progress then just wait for it to 1994 * complete and return. 1995 */ 1996 if (xfer->hcflags & UXFER_ABORTING) { 1997 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1998 #ifdef DIAGNOSTIC 1999 if (status == USBD_TIMEOUT) 2000 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 2001 #endif 2002 /* Override the status which might be USBD_TIMEOUT. */ 2003 xfer->status = status; 2004 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2005 xfer->hcflags |= UXFER_ABORTWAIT; 2006 while (xfer->hcflags & UXFER_ABORTING) 2007 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2008 return; 2009 } 2010 xfer->hcflags |= UXFER_ABORTING; 2011 2012 /* 2013 * Step 1: Make interrupt routine and hardware ignore xfer. 2014 */ 2015 s = splusb(); 2016 xfer->status = status; /* make software ignore it */ 2017 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2018 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2019 for (std = ii->stdstart; std != NULL; std = std->link.std) 2020 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2021 splx(s); 2022 2023 /* 2024 * Step 2: Wait until we know hardware has finished any possible 2025 * use of the xfer. Also make sure the soft interrupt routine 2026 * has run. 2027 */ 2028 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2029 s = splusb(); 2030 #ifdef USB_USE_SOFTINTR 2031 sc->sc_softwake = 1; 2032 #endif /* USB_USE_SOFTINTR */ 2033 usb_schedsoftintr(&sc->sc_bus); 2034 #ifdef USB_USE_SOFTINTR 2035 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2036 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2037 #endif /* USB_USE_SOFTINTR */ 2038 splx(s); 2039 2040 /* 2041 * Step 3: Execute callback. 2042 */ 2043 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2044 s = splusb(); 2045 #ifdef DIAGNOSTIC 2046 ii->isdone = 1; 2047 #endif 2048 wake = xfer->hcflags & UXFER_ABORTWAIT; 2049 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2050 usb_transfer_complete(xfer); 2051 if (wake) 2052 wakeup(&xfer->hcflags); 2053 splx(s); 2054 } 2055 2056 /* Close a device bulk pipe. */ 2057 void 2058 uhci_device_bulk_close(usbd_pipe_handle pipe) 2059 { 2060 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2061 usbd_device_handle dev = upipe->pipe.device; 2062 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2063 2064 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2065 } 2066 2067 usbd_status 2068 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2069 { 2070 usbd_status err; 2071 2072 /* Insert last in queue. */ 2073 err = usb_insert_transfer(xfer); 2074 if (err) 2075 return (err); 2076 2077 /* 2078 * Pipe isn't running (otherwise err would be USBD_INPROG), 2079 * so start it first. 2080 */ 2081 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2082 } 2083 2084 usbd_status 2085 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2086 { 2087 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2088 usbd_status err; 2089 2090 if (sc->sc_dying) 2091 return (USBD_IOERROR); 2092 2093 #ifdef DIAGNOSTIC 2094 if (!(xfer->rqflags & URQ_REQUEST)) 2095 panic("uhci_device_ctrl_transfer: not a request"); 2096 #endif 2097 2098 err = uhci_device_request(xfer); 2099 if (err) 2100 return (err); 2101 2102 if (sc->sc_bus.use_polling) 2103 uhci_waitintr(sc, xfer); 2104 return (USBD_IN_PROGRESS); 2105 } 2106 2107 usbd_status 2108 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2109 { 2110 usbd_status err; 2111 2112 /* Insert last in queue. */ 2113 err = usb_insert_transfer(xfer); 2114 if (err) 2115 return (err); 2116 2117 /* 2118 * Pipe isn't running (otherwise err would be USBD_INPROG), 2119 * so start it first. 2120 */ 2121 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2122 } 2123 2124 usbd_status 2125 uhci_device_intr_start(usbd_xfer_handle xfer) 2126 { 2127 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2128 usbd_device_handle dev = upipe->pipe.device; 2129 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2130 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2131 uhci_soft_td_t *data, *dataend; 2132 uhci_soft_qh_t *sqh; 2133 usbd_status err; 2134 int isread, endpt; 2135 int i, s; 2136 2137 if (sc->sc_dying) 2138 return (USBD_IOERROR); 2139 2140 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2141 xfer, xfer->length, xfer->flags)); 2142 2143 #ifdef DIAGNOSTIC 2144 if (xfer->rqflags & URQ_REQUEST) 2145 panic("uhci_device_intr_transfer: a request"); 2146 #endif 2147 2148 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2149 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2150 2151 upipe->u.intr.isread = isread; 2152 2153 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2154 xfer->flags, &xfer->dmabuf, &data, 2155 &dataend); 2156 if (err) 2157 return (err); 2158 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2159 2160 #ifdef UHCI_DEBUG 2161 if (uhcidebug > 10) { 2162 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2163 uhci_dump_tds(data); 2164 uhci_dump_qh(upipe->u.intr.qhs[0]); 2165 } 2166 #endif 2167 2168 s = splusb(); 2169 /* Set up interrupt info. */ 2170 ii->xfer = xfer; 2171 ii->stdstart = data; 2172 ii->stdend = dataend; 2173 #ifdef DIAGNOSTIC 2174 if (!ii->isdone) { 2175 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2176 } 2177 ii->isdone = 0; 2178 #endif 2179 2180 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2181 upipe->u.intr.qhs[0])); 2182 for (i = 0; i < upipe->u.intr.npoll; i++) { 2183 sqh = upipe->u.intr.qhs[i]; 2184 sqh->elink = data; 2185 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2186 } 2187 uhci_add_intr_info(sc, ii); 2188 xfer->status = USBD_IN_PROGRESS; 2189 splx(s); 2190 2191 #ifdef UHCI_DEBUG 2192 if (uhcidebug > 10) { 2193 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2194 uhci_dump_tds(data); 2195 uhci_dump_qh(upipe->u.intr.qhs[0]); 2196 } 2197 #endif 2198 2199 return (USBD_IN_PROGRESS); 2200 } 2201 2202 /* Abort a device control request. */ 2203 void 2204 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2205 { 2206 DPRINTF(("uhci_device_ctrl_abort:\n")); 2207 uhci_abort_xfer(xfer, USBD_CANCELLED); 2208 } 2209 2210 /* Close a device control pipe. */ 2211 void 2212 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2213 { 2214 } 2215 2216 /* Abort a device interrupt request. */ 2217 void 2218 uhci_device_intr_abort(usbd_xfer_handle xfer) 2219 { 2220 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2221 if (xfer->pipe->intrxfer == xfer) { 2222 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2223 xfer->pipe->intrxfer = NULL; 2224 } 2225 uhci_abort_xfer(xfer, USBD_CANCELLED); 2226 } 2227 2228 /* Close a device interrupt pipe. */ 2229 void 2230 uhci_device_intr_close(usbd_pipe_handle pipe) 2231 { 2232 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2233 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2234 int i, npoll; 2235 int s; 2236 2237 /* Unlink descriptors from controller data structures. */ 2238 npoll = upipe->u.intr.npoll; 2239 s = splusb(); 2240 for (i = 0; i < npoll; i++) 2241 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2242 splx(s); 2243 2244 /* 2245 * We now have to wait for any activity on the physical 2246 * descriptors to stop. 2247 */ 2248 usb_delay_ms(&sc->sc_bus, 2); 2249 2250 for(i = 0; i < npoll; i++) 2251 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2252 free(upipe->u.intr.qhs, M_USBHC); 2253 2254 /* XXX free other resources */ 2255 } 2256 2257 usbd_status 2258 uhci_device_request(usbd_xfer_handle xfer) 2259 { 2260 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2261 usb_device_request_t *req = &xfer->request; 2262 usbd_device_handle dev = upipe->pipe.device; 2263 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2264 int addr = dev->address; 2265 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2266 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2267 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2268 uhci_soft_qh_t *sqh; 2269 int len; 2270 u_int32_t ls; 2271 usbd_status err; 2272 int isread; 2273 int s; 2274 2275 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2276 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2277 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2278 UGETW(req->wIndex), UGETW(req->wLength), 2279 addr, endpt)); 2280 2281 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2282 isread = req->bmRequestType & UT_READ; 2283 len = UGETW(req->wLength); 2284 2285 setup = upipe->u.ctl.setup; 2286 stat = upipe->u.ctl.stat; 2287 sqh = upipe->u.ctl.sqh; 2288 2289 /* Set up data transaction */ 2290 if (len != 0) { 2291 upipe->nexttoggle = 1; 2292 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2293 &xfer->dmabuf, &data, &dataend); 2294 if (err) 2295 return (err); 2296 next = data; 2297 dataend->link.std = stat; 2298 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2299 } else { 2300 next = stat; 2301 } 2302 upipe->u.ctl.length = len; 2303 2304 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2305 2306 setup->link.std = next; 2307 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2308 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2309 UHCI_TD_ACTIVE); 2310 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2311 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2312 2313 stat->link.std = NULL; 2314 stat->td.td_link = htole32(UHCI_PTR_T); 2315 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2316 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2317 stat->td.td_token = 2318 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2319 UHCI_TD_IN (0, endpt, addr, 1)); 2320 stat->td.td_buffer = htole32(0); 2321 2322 #ifdef UHCI_DEBUG 2323 if (uhcidebug > 10) { 2324 DPRINTF(("uhci_device_request: before transfer\n")); 2325 uhci_dump_tds(setup); 2326 } 2327 #endif 2328 2329 /* Set up interrupt info. */ 2330 ii->xfer = xfer; 2331 ii->stdstart = setup; 2332 ii->stdend = stat; 2333 #ifdef DIAGNOSTIC 2334 if (!ii->isdone) { 2335 printf("uhci_device_request: not done, ii=%p\n", ii); 2336 } 2337 ii->isdone = 0; 2338 #endif 2339 2340 sqh->elink = setup; 2341 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2342 2343 s = splusb(); 2344 if (dev->speed == USB_SPEED_LOW) 2345 uhci_add_ls_ctrl(sc, sqh); 2346 else 2347 uhci_add_hs_ctrl(sc, sqh); 2348 uhci_add_intr_info(sc, ii); 2349 #ifdef UHCI_DEBUG 2350 if (uhcidebug > 12) { 2351 uhci_soft_td_t *std; 2352 uhci_soft_qh_t *xqh; 2353 uhci_soft_qh_t *sxqh; 2354 int maxqh = 0; 2355 uhci_physaddr_t link; 2356 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2357 for (std = sc->sc_vframes[0].htd, link = 0; 2358 (link & UHCI_PTR_QH) == 0; 2359 std = std->link.std) { 2360 link = le32toh(std->td.td_link); 2361 uhci_dump_td(std); 2362 } 2363 sxqh = (uhci_soft_qh_t *)std; 2364 uhci_dump_qh(sxqh); 2365 for (xqh = sxqh; 2366 xqh != NULL; 2367 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2368 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2369 uhci_dump_qh(xqh); 2370 } 2371 DPRINTF(("Enqueued QH:\n")); 2372 uhci_dump_qh(sqh); 2373 uhci_dump_tds(sqh->elink); 2374 } 2375 #endif 2376 if (xfer->timeout && !sc->sc_bus.use_polling) { 2377 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2378 uhci_timeout, ii); 2379 } 2380 xfer->status = USBD_IN_PROGRESS; 2381 splx(s); 2382 2383 return (USBD_NORMAL_COMPLETION); 2384 } 2385 2386 usbd_status 2387 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2388 { 2389 usbd_status err; 2390 2391 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2392 2393 /* Put it on our queue, */ 2394 err = usb_insert_transfer(xfer); 2395 2396 /* bail out on error, */ 2397 if (err && err != USBD_IN_PROGRESS) 2398 return (err); 2399 2400 /* XXX should check inuse here */ 2401 2402 /* insert into schedule, */ 2403 uhci_device_isoc_enter(xfer); 2404 2405 /* and start if the pipe wasn't running */ 2406 if (!err) 2407 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2408 2409 return (err); 2410 } 2411 2412 void 2413 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2414 { 2415 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2416 usbd_device_handle dev = upipe->pipe.device; 2417 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2418 struct iso *iso = &upipe->u.iso; 2419 uhci_soft_td_t *std; 2420 u_int32_t buf, len, status; 2421 int s, i, next, nframes; 2422 2423 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2424 "nframes=%d\n", 2425 iso->inuse, iso->next, xfer, xfer->nframes)); 2426 2427 if (sc->sc_dying) 2428 return; 2429 2430 if (xfer->status == USBD_IN_PROGRESS) { 2431 /* This request has already been entered into the frame list */ 2432 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2433 /* XXX */ 2434 } 2435 2436 #ifdef DIAGNOSTIC 2437 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2438 printf("uhci_device_isoc_enter: overflow!\n"); 2439 #endif 2440 2441 next = iso->next; 2442 if (next == -1) { 2443 /* Not in use yet, schedule it a few frames ahead. */ 2444 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2445 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2446 } 2447 2448 xfer->status = USBD_IN_PROGRESS; 2449 UXFER(xfer)->curframe = next; 2450 2451 buf = DMAADDR(&xfer->dmabuf, 0); 2452 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2453 UHCI_TD_ACTIVE | 2454 UHCI_TD_IOS); 2455 nframes = xfer->nframes; 2456 s = splusb(); 2457 for (i = 0; i < nframes; i++) { 2458 std = iso->stds[next]; 2459 if (++next >= UHCI_VFRAMELIST_COUNT) 2460 next = 0; 2461 len = xfer->frlengths[i]; 2462 std->td.td_buffer = htole32(buf); 2463 if (i == nframes - 1) 2464 status |= UHCI_TD_IOC; 2465 std->td.td_status = htole32(status); 2466 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2467 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2468 #ifdef UHCI_DEBUG 2469 if (uhcidebug > 5) { 2470 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2471 uhci_dump_td(std); 2472 } 2473 #endif 2474 buf += len; 2475 } 2476 iso->next = next; 2477 iso->inuse += xfer->nframes; 2478 2479 splx(s); 2480 } 2481 2482 usbd_status 2483 uhci_device_isoc_start(usbd_xfer_handle xfer) 2484 { 2485 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2486 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2487 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2488 uhci_soft_td_t *end; 2489 int s, i; 2490 2491 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2492 2493 if (sc->sc_dying) 2494 return (USBD_IOERROR); 2495 2496 #ifdef DIAGNOSTIC 2497 if (xfer->status != USBD_IN_PROGRESS) 2498 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2499 #endif 2500 2501 /* Find the last TD */ 2502 i = UXFER(xfer)->curframe + xfer->nframes; 2503 if (i >= UHCI_VFRAMELIST_COUNT) 2504 i -= UHCI_VFRAMELIST_COUNT; 2505 end = upipe->u.iso.stds[i]; 2506 2507 #ifdef DIAGNOSTIC 2508 if (end == NULL) { 2509 printf("uhci_device_isoc_start: end == NULL\n"); 2510 return (USBD_INVAL); 2511 } 2512 #endif 2513 2514 s = splusb(); 2515 2516 /* Set up interrupt info. */ 2517 ii->xfer = xfer; 2518 ii->stdstart = end; 2519 ii->stdend = end; 2520 #ifdef DIAGNOSTIC 2521 if (!ii->isdone) 2522 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2523 ii->isdone = 0; 2524 #endif 2525 uhci_add_intr_info(sc, ii); 2526 2527 splx(s); 2528 2529 return (USBD_IN_PROGRESS); 2530 } 2531 2532 void 2533 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2534 { 2535 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2536 uhci_soft_td_t **stds = upipe->u.iso.stds; 2537 uhci_soft_td_t *std; 2538 int i, n, s, nframes, maxlen, len; 2539 2540 s = splusb(); 2541 2542 /* Transfer is already done. */ 2543 if (xfer->status != USBD_NOT_STARTED && 2544 xfer->status != USBD_IN_PROGRESS) { 2545 splx(s); 2546 return; 2547 } 2548 2549 /* Give xfer the requested abort code. */ 2550 xfer->status = USBD_CANCELLED; 2551 2552 /* make hardware ignore it, */ 2553 nframes = xfer->nframes; 2554 n = UXFER(xfer)->curframe; 2555 maxlen = 0; 2556 for (i = 0; i < nframes; i++) { 2557 std = stds[n]; 2558 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2559 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2560 if (len > maxlen) 2561 maxlen = len; 2562 if (++n >= UHCI_VFRAMELIST_COUNT) 2563 n = 0; 2564 } 2565 2566 /* and wait until we are sure the hardware has finished. */ 2567 delay(maxlen); 2568 2569 #ifdef DIAGNOSTIC 2570 UXFER(xfer)->iinfo.isdone = 1; 2571 #endif 2572 /* Run callback and remove from interrupt list. */ 2573 usb_transfer_complete(xfer); 2574 2575 splx(s); 2576 } 2577 2578 void 2579 uhci_device_isoc_close(usbd_pipe_handle pipe) 2580 { 2581 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2582 usbd_device_handle dev = upipe->pipe.device; 2583 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2584 uhci_soft_td_t *std, *vstd; 2585 struct iso *iso; 2586 int i, s; 2587 2588 /* 2589 * Make sure all TDs are marked as inactive. 2590 * Wait for completion. 2591 * Unschedule. 2592 * Deallocate. 2593 */ 2594 iso = &upipe->u.iso; 2595 2596 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2597 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2598 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2599 2600 s = splusb(); 2601 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2602 std = iso->stds[i]; 2603 for (vstd = sc->sc_vframes[i].htd; 2604 vstd != NULL && vstd->link.std != std; 2605 vstd = vstd->link.std) 2606 ; 2607 if (vstd == NULL) { 2608 /*panic*/ 2609 printf("uhci_device_isoc_close: %p not found\n", std); 2610 splx(s); 2611 return; 2612 } 2613 vstd->link = std->link; 2614 vstd->td.td_link = std->td.td_link; 2615 uhci_free_std(sc, std); 2616 } 2617 splx(s); 2618 2619 free(iso->stds, M_USBHC); 2620 } 2621 2622 usbd_status 2623 uhci_setup_isoc(usbd_pipe_handle pipe) 2624 { 2625 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2626 usbd_device_handle dev = upipe->pipe.device; 2627 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2628 int addr = upipe->pipe.device->address; 2629 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2630 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2631 uhci_soft_td_t *std, *vstd; 2632 u_int32_t token; 2633 struct iso *iso; 2634 int i, s; 2635 2636 iso = &upipe->u.iso; 2637 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2638 M_USBHC, M_WAITOK); 2639 2640 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2641 UHCI_TD_OUT(0, endpt, addr, 0); 2642 2643 /* Allocate the TDs and mark as inactive; */ 2644 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2645 std = uhci_alloc_std(sc); 2646 if (std == 0) 2647 goto bad; 2648 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2649 std->td.td_token = htole32(token); 2650 iso->stds[i] = std; 2651 } 2652 2653 /* Insert TDs into schedule. */ 2654 s = splusb(); 2655 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2656 std = iso->stds[i]; 2657 vstd = sc->sc_vframes[i].htd; 2658 std->link = vstd->link; 2659 std->td.td_link = vstd->td.td_link; 2660 vstd->link.std = std; 2661 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2662 } 2663 splx(s); 2664 2665 iso->next = -1; 2666 iso->inuse = 0; 2667 2668 return (USBD_NORMAL_COMPLETION); 2669 2670 bad: 2671 while (--i >= 0) 2672 uhci_free_std(sc, iso->stds[i]); 2673 free(iso->stds, M_USBHC); 2674 return (USBD_NOMEM); 2675 } 2676 2677 void 2678 uhci_device_isoc_done(usbd_xfer_handle xfer) 2679 { 2680 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2681 2682 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2683 xfer->actlen, xfer->busy_free)); 2684 2685 if (ii->xfer != xfer) 2686 /* Not on interrupt list, ignore it. */ 2687 return; 2688 2689 if (!uhci_active_intr_info(ii)) 2690 return; 2691 2692 #ifdef DIAGNOSTIC 2693 if (ii->stdend == NULL) { 2694 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2695 #ifdef UHCI_DEBUG 2696 uhci_dump_ii(ii); 2697 #endif 2698 return; 2699 } 2700 #endif 2701 2702 /* Turn off the interrupt since it is active even if the TD is not. */ 2703 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2704 2705 uhci_del_intr_info(ii); /* remove from active list */ 2706 } 2707 2708 void 2709 uhci_device_intr_done(usbd_xfer_handle xfer) 2710 { 2711 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2712 uhci_softc_t *sc = ii->sc; 2713 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2714 uhci_soft_qh_t *sqh; 2715 int i, npoll; 2716 2717 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2718 2719 npoll = upipe->u.intr.npoll; 2720 for(i = 0; i < npoll; i++) { 2721 sqh = upipe->u.intr.qhs[i]; 2722 sqh->elink = NULL; 2723 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2724 } 2725 uhci_free_std_chain(sc, ii->stdstart, NULL); 2726 2727 /* XXX Wasteful. */ 2728 if (xfer->pipe->repeat) { 2729 uhci_soft_td_t *data, *dataend; 2730 2731 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2732 2733 /* This alloc cannot fail since we freed the chain above. */ 2734 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2735 &xfer->dmabuf, &data, &dataend); 2736 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2737 2738 #ifdef UHCI_DEBUG 2739 if (uhcidebug > 10) { 2740 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2741 uhci_dump_tds(data); 2742 uhci_dump_qh(upipe->u.intr.qhs[0]); 2743 } 2744 #endif 2745 2746 ii->stdstart = data; 2747 ii->stdend = dataend; 2748 #ifdef DIAGNOSTIC 2749 if (!ii->isdone) { 2750 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2751 } 2752 ii->isdone = 0; 2753 #endif 2754 for (i = 0; i < npoll; i++) { 2755 sqh = upipe->u.intr.qhs[i]; 2756 sqh->elink = data; 2757 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2758 } 2759 xfer->status = USBD_IN_PROGRESS; 2760 /* The ii is already on the examined list, just leave it. */ 2761 } else { 2762 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2763 if (uhci_active_intr_info(ii)) 2764 uhci_del_intr_info(ii); 2765 } 2766 } 2767 2768 /* Deallocate request data structures */ 2769 void 2770 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2771 { 2772 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2773 uhci_softc_t *sc = ii->sc; 2774 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2775 2776 #ifdef DIAGNOSTIC 2777 if (!(xfer->rqflags & URQ_REQUEST)) 2778 panic("uhci_device_ctrl_done: not a request"); 2779 #endif 2780 2781 if (!uhci_active_intr_info(ii)) 2782 return; 2783 2784 uhci_del_intr_info(ii); /* remove from active list */ 2785 2786 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2787 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2788 else 2789 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2790 2791 if (upipe->u.ctl.length != 0) 2792 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2793 2794 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2795 } 2796 2797 /* Deallocate request data structures */ 2798 void 2799 uhci_device_bulk_done(usbd_xfer_handle xfer) 2800 { 2801 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2802 uhci_softc_t *sc = ii->sc; 2803 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2804 2805 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2806 xfer, ii, sc, upipe)); 2807 2808 if (!uhci_active_intr_info(ii)) 2809 return; 2810 2811 uhci_del_intr_info(ii); /* remove from active list */ 2812 2813 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2814 2815 uhci_free_std_chain(sc, ii->stdstart, NULL); 2816 2817 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2818 } 2819 2820 /* Add interrupt QH, called with vflock. */ 2821 void 2822 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2823 { 2824 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2825 uhci_soft_qh_t *eqh; 2826 2827 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2828 2829 eqh = vf->eqh; 2830 sqh->hlink = eqh->hlink; 2831 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2832 eqh->hlink = sqh; 2833 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2834 vf->eqh = sqh; 2835 vf->bandwidth++; 2836 } 2837 2838 /* Remove interrupt QH. */ 2839 void 2840 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2841 { 2842 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2843 uhci_soft_qh_t *pqh; 2844 2845 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2846 2847 /* See comment in uhci_remove_ctrl() */ 2848 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2849 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2850 delay(UHCI_QH_REMOVE_DELAY); 2851 } 2852 2853 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2854 pqh->hlink = sqh->hlink; 2855 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2856 delay(UHCI_QH_REMOVE_DELAY); 2857 if (vf->eqh == sqh) 2858 vf->eqh = pqh; 2859 vf->bandwidth--; 2860 } 2861 2862 usbd_status 2863 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2864 { 2865 uhci_soft_qh_t *sqh; 2866 int i, npoll, s; 2867 u_int bestbw, bw, bestoffs, offs; 2868 2869 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2870 if (ival == 0) { 2871 printf("uhci_device_setintr: 0 interval\n"); 2872 return (USBD_INVAL); 2873 } 2874 2875 if (ival > UHCI_VFRAMELIST_COUNT) 2876 ival = UHCI_VFRAMELIST_COUNT; 2877 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2878 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2879 2880 upipe->u.intr.npoll = npoll; 2881 upipe->u.intr.qhs = 2882 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2883 2884 /* 2885 * Figure out which offset in the schedule that has most 2886 * bandwidth left over. 2887 */ 2888 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2889 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2890 for (bw = i = 0; i < npoll; i++) 2891 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2892 if (bw < bestbw) { 2893 bestbw = bw; 2894 bestoffs = offs; 2895 } 2896 } 2897 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2898 2899 for(i = 0; i < npoll; i++) { 2900 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2901 sqh->elink = NULL; 2902 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2903 sqh->pos = MOD(i * ival + bestoffs); 2904 } 2905 #undef MOD 2906 2907 s = splusb(); 2908 /* Enter QHs into the controller data structures. */ 2909 for(i = 0; i < npoll; i++) 2910 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2911 splx(s); 2912 2913 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2914 return (USBD_NORMAL_COMPLETION); 2915 } 2916 2917 /* Open a new pipe. */ 2918 usbd_status 2919 uhci_open(usbd_pipe_handle pipe) 2920 { 2921 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2922 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2923 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2924 usbd_status err; 2925 int ival; 2926 2927 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2928 pipe, pipe->device->address, 2929 ed->bEndpointAddress, sc->sc_addr)); 2930 2931 upipe->aborting = 0; 2932 upipe->nexttoggle = 0; 2933 2934 if (pipe->device->address == sc->sc_addr) { 2935 switch (ed->bEndpointAddress) { 2936 case USB_CONTROL_ENDPOINT: 2937 pipe->methods = &uhci_root_ctrl_methods; 2938 break; 2939 case UE_DIR_IN | UHCI_INTR_ENDPT: 2940 pipe->methods = &uhci_root_intr_methods; 2941 break; 2942 default: 2943 return (USBD_INVAL); 2944 } 2945 } else { 2946 switch (ed->bmAttributes & UE_XFERTYPE) { 2947 case UE_CONTROL: 2948 pipe->methods = &uhci_device_ctrl_methods; 2949 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2950 if (upipe->u.ctl.sqh == NULL) 2951 goto bad; 2952 upipe->u.ctl.setup = uhci_alloc_std(sc); 2953 if (upipe->u.ctl.setup == NULL) { 2954 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2955 goto bad; 2956 } 2957 upipe->u.ctl.stat = uhci_alloc_std(sc); 2958 if (upipe->u.ctl.stat == NULL) { 2959 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2960 uhci_free_std(sc, upipe->u.ctl.setup); 2961 goto bad; 2962 } 2963 err = usb_allocmem(&sc->sc_bus, 2964 sizeof(usb_device_request_t), 2965 0, &upipe->u.ctl.reqdma); 2966 if (err) { 2967 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2968 uhci_free_std(sc, upipe->u.ctl.setup); 2969 uhci_free_std(sc, upipe->u.ctl.stat); 2970 goto bad; 2971 } 2972 break; 2973 case UE_INTERRUPT: 2974 pipe->methods = &uhci_device_intr_methods; 2975 ival = pipe->interval; 2976 if (ival == USBD_DEFAULT_INTERVAL) 2977 ival = ed->bInterval; 2978 return (uhci_device_setintr(sc, upipe, ival)); 2979 case UE_ISOCHRONOUS: 2980 pipe->methods = &uhci_device_isoc_methods; 2981 return (uhci_setup_isoc(pipe)); 2982 case UE_BULK: 2983 pipe->methods = &uhci_device_bulk_methods; 2984 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2985 if (upipe->u.bulk.sqh == NULL) 2986 goto bad; 2987 break; 2988 } 2989 } 2990 return (USBD_NORMAL_COMPLETION); 2991 2992 bad: 2993 return (USBD_NOMEM); 2994 } 2995 2996 /* 2997 * Data structures and routines to emulate the root hub. 2998 */ 2999 usb_device_descriptor_t uhci_devd = { 3000 USB_DEVICE_DESCRIPTOR_SIZE, 3001 UDESC_DEVICE, /* type */ 3002 {0x00, 0x01}, /* USB version */ 3003 UDCLASS_HUB, /* class */ 3004 UDSUBCLASS_HUB, /* subclass */ 3005 UDPROTO_FSHUB, /* protocol */ 3006 64, /* max packet */ 3007 {0},{0},{0x00,0x01}, /* device id */ 3008 1,2,0, /* string indicies */ 3009 1 /* # of configurations */ 3010 }; 3011 3012 usb_config_descriptor_t uhci_confd = { 3013 USB_CONFIG_DESCRIPTOR_SIZE, 3014 UDESC_CONFIG, 3015 {USB_CONFIG_DESCRIPTOR_SIZE + 3016 USB_INTERFACE_DESCRIPTOR_SIZE + 3017 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3018 1, 3019 1, 3020 0, 3021 UC_ATTR_MBO | UC_SELF_POWERED, 3022 0 /* max power */ 3023 }; 3024 3025 usb_interface_descriptor_t uhci_ifcd = { 3026 USB_INTERFACE_DESCRIPTOR_SIZE, 3027 UDESC_INTERFACE, 3028 0, 3029 0, 3030 1, 3031 UICLASS_HUB, 3032 UISUBCLASS_HUB, 3033 UIPROTO_FSHUB, 3034 0 3035 }; 3036 3037 usb_endpoint_descriptor_t uhci_endpd = { 3038 USB_ENDPOINT_DESCRIPTOR_SIZE, 3039 UDESC_ENDPOINT, 3040 UE_DIR_IN | UHCI_INTR_ENDPT, 3041 UE_INTERRUPT, 3042 {8}, 3043 255 3044 }; 3045 3046 usb_hub_descriptor_t uhci_hubd_piix = { 3047 USB_HUB_DESCRIPTOR_SIZE, 3048 UDESC_HUB, 3049 2, 3050 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3051 50, /* power on to power good */ 3052 0, 3053 { 0x00 }, /* both ports are removable */ 3054 { 0 }, 3055 }; 3056 3057 int 3058 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3059 { 3060 int i; 3061 3062 if (l == 0) 3063 return (0); 3064 p->bLength = 2 * strlen(s) + 2; 3065 if (l == 1) 3066 return (1); 3067 p->bDescriptorType = UDESC_STRING; 3068 l -= 2; 3069 for (i = 0; s[i] && l > 1; i++, l -= 2) 3070 USETW2(p->bString[i], 0, s[i]); 3071 return (2*i+2); 3072 } 3073 3074 /* 3075 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3076 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3077 * should not be used by the USB subsystem. As we cannot issue a 3078 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3079 * will be enabled as part of the reset. 3080 * 3081 * On the VT83C572, the port cannot be successfully enabled until the 3082 * outstanding "port enable change" and "connection status change" 3083 * events have been reset. 3084 */ 3085 Static usbd_status 3086 uhci_portreset(uhci_softc_t *sc, int index) 3087 { 3088 int lim, port, x; 3089 3090 if (index == 1) 3091 port = UHCI_PORTSC1; 3092 else if (index == 2) 3093 port = UHCI_PORTSC2; 3094 else 3095 return (USBD_IOERROR); 3096 3097 x = URWMASK(UREAD2(sc, port)); 3098 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3099 3100 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3101 3102 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3103 index, UREAD2(sc, port))); 3104 3105 x = URWMASK(UREAD2(sc, port)); 3106 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3107 3108 delay(100); 3109 3110 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3111 index, UREAD2(sc, port))); 3112 3113 x = URWMASK(UREAD2(sc, port)); 3114 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3115 3116 for (lim = 10; --lim > 0;) { 3117 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3118 3119 x = UREAD2(sc, port); 3120 3121 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3122 index, lim, x)); 3123 3124 if (!(x & UHCI_PORTSC_CCS)) { 3125 /* 3126 * No device is connected (or was disconnected 3127 * during reset). Consider the port reset. 3128 * The delay must be long enough to ensure on 3129 * the initial iteration that the device 3130 * connection will have been registered. 50ms 3131 * appears to be sufficient, but 20ms is not. 3132 */ 3133 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3134 index, lim)); 3135 break; 3136 } 3137 3138 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3139 /* 3140 * Port enabled changed and/or connection 3141 * status changed were set. Reset either or 3142 * both raised flags (by writing a 1 to that 3143 * bit), and wait again for state to settle. 3144 */ 3145 UWRITE2(sc, port, URWMASK(x) | 3146 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3147 continue; 3148 } 3149 3150 if (x & UHCI_PORTSC_PE) 3151 /* Port is enabled */ 3152 break; 3153 3154 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3155 } 3156 3157 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3158 index, UREAD2(sc, port))); 3159 3160 if (lim <= 0) { 3161 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3162 return (USBD_TIMEOUT); 3163 } 3164 3165 sc->sc_isreset = 1; 3166 return (USBD_NORMAL_COMPLETION); 3167 } 3168 3169 /* 3170 * Simulate a hardware hub by handling all the necessary requests. 3171 */ 3172 usbd_status 3173 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3174 { 3175 usbd_status err; 3176 3177 /* Insert last in queue. */ 3178 err = usb_insert_transfer(xfer); 3179 if (err) 3180 return (err); 3181 3182 /* 3183 * Pipe isn't running (otherwise err would be USBD_INPROG), 3184 * so start it first. 3185 */ 3186 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3187 } 3188 3189 usbd_status 3190 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3191 { 3192 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3193 usb_device_request_t *req; 3194 void *buf = NULL; 3195 int port, x; 3196 int s, len, value, index, status, change, l, totlen = 0; 3197 usb_port_status_t ps; 3198 usbd_status err; 3199 3200 if (sc->sc_dying) 3201 return (USBD_IOERROR); 3202 3203 #ifdef DIAGNOSTIC 3204 if (!(xfer->rqflags & URQ_REQUEST)) 3205 panic("uhci_root_ctrl_transfer: not a request"); 3206 #endif 3207 req = &xfer->request; 3208 3209 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3210 req->bmRequestType, req->bRequest)); 3211 3212 len = UGETW(req->wLength); 3213 value = UGETW(req->wValue); 3214 index = UGETW(req->wIndex); 3215 3216 if (len != 0) 3217 buf = KERNADDR(&xfer->dmabuf, 0); 3218 3219 #define C(x,y) ((x) | ((y) << 8)) 3220 switch(C(req->bRequest, req->bmRequestType)) { 3221 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3222 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3223 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3224 /* 3225 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3226 * for the integrated root hub. 3227 */ 3228 break; 3229 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3230 if (len > 0) { 3231 *(u_int8_t *)buf = sc->sc_conf; 3232 totlen = 1; 3233 } 3234 break; 3235 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3236 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3237 if (len == 0) 3238 break; 3239 switch(value >> 8) { 3240 case UDESC_DEVICE: 3241 if ((value & 0xff) != 0) { 3242 err = USBD_IOERROR; 3243 goto ret; 3244 } 3245 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3246 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3247 memcpy(buf, &uhci_devd, l); 3248 break; 3249 case UDESC_CONFIG: 3250 if ((value & 0xff) != 0) { 3251 err = USBD_IOERROR; 3252 goto ret; 3253 } 3254 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3255 memcpy(buf, &uhci_confd, l); 3256 buf = (char *)buf + l; 3257 len -= l; 3258 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3259 totlen += l; 3260 memcpy(buf, &uhci_ifcd, l); 3261 buf = (char *)buf + l; 3262 len -= l; 3263 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3264 totlen += l; 3265 memcpy(buf, &uhci_endpd, l); 3266 break; 3267 case UDESC_STRING: 3268 *(u_int8_t *)buf = 0; 3269 totlen = 1; 3270 switch (value & 0xff) { 3271 case 0: /* Language table */ 3272 totlen = uhci_str(buf, len, "\001"); 3273 break; 3274 case 1: /* Vendor */ 3275 totlen = uhci_str(buf, len, sc->sc_vendor); 3276 break; 3277 case 2: /* Product */ 3278 totlen = uhci_str(buf, len, "UHCI root hub"); 3279 break; 3280 } 3281 break; 3282 default: 3283 err = USBD_IOERROR; 3284 goto ret; 3285 } 3286 break; 3287 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3288 if (len > 0) { 3289 *(u_int8_t *)buf = 0; 3290 totlen = 1; 3291 } 3292 break; 3293 case C(UR_GET_STATUS, UT_READ_DEVICE): 3294 if (len > 1) { 3295 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3296 totlen = 2; 3297 } 3298 break; 3299 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3300 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3301 if (len > 1) { 3302 USETW(((usb_status_t *)buf)->wStatus, 0); 3303 totlen = 2; 3304 } 3305 break; 3306 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3307 if (value >= USB_MAX_DEVICES) { 3308 err = USBD_IOERROR; 3309 goto ret; 3310 } 3311 sc->sc_addr = value; 3312 break; 3313 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3314 if (value != 0 && value != 1) { 3315 err = USBD_IOERROR; 3316 goto ret; 3317 } 3318 sc->sc_conf = value; 3319 break; 3320 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3321 break; 3322 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3323 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3324 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3325 err = USBD_IOERROR; 3326 goto ret; 3327 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3328 break; 3329 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3330 break; 3331 /* Hub requests */ 3332 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3333 break; 3334 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3335 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3336 "port=%d feature=%d\n", 3337 index, value)); 3338 if (index == 1) 3339 port = UHCI_PORTSC1; 3340 else if (index == 2) 3341 port = UHCI_PORTSC2; 3342 else { 3343 err = USBD_IOERROR; 3344 goto ret; 3345 } 3346 switch(value) { 3347 case UHF_PORT_ENABLE: 3348 x = URWMASK(UREAD2(sc, port)); 3349 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3350 break; 3351 case UHF_PORT_SUSPEND: 3352 x = URWMASK(UREAD2(sc, port)); 3353 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3354 break; 3355 case UHF_PORT_RESET: 3356 x = URWMASK(UREAD2(sc, port)); 3357 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3358 break; 3359 case UHF_C_PORT_CONNECTION: 3360 x = URWMASK(UREAD2(sc, port)); 3361 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3362 break; 3363 case UHF_C_PORT_ENABLE: 3364 x = URWMASK(UREAD2(sc, port)); 3365 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3366 break; 3367 case UHF_C_PORT_OVER_CURRENT: 3368 x = URWMASK(UREAD2(sc, port)); 3369 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3370 break; 3371 case UHF_C_PORT_RESET: 3372 sc->sc_isreset = 0; 3373 err = USBD_NORMAL_COMPLETION; 3374 goto ret; 3375 case UHF_PORT_CONNECTION: 3376 case UHF_PORT_OVER_CURRENT: 3377 case UHF_PORT_POWER: 3378 case UHF_PORT_LOW_SPEED: 3379 case UHF_C_PORT_SUSPEND: 3380 default: 3381 err = USBD_IOERROR; 3382 goto ret; 3383 } 3384 break; 3385 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3386 if (index == 1) 3387 port = UHCI_PORTSC1; 3388 else if (index == 2) 3389 port = UHCI_PORTSC2; 3390 else { 3391 err = USBD_IOERROR; 3392 goto ret; 3393 } 3394 if (len > 0) { 3395 *(u_int8_t *)buf = 3396 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3397 UHCI_PORTSC_LS_SHIFT; 3398 totlen = 1; 3399 } 3400 break; 3401 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3402 if (len == 0) 3403 break; 3404 if ((value & 0xff) != 0) { 3405 err = USBD_IOERROR; 3406 goto ret; 3407 } 3408 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3409 totlen = l; 3410 memcpy(buf, &uhci_hubd_piix, l); 3411 break; 3412 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3413 if (len != 4) { 3414 err = USBD_IOERROR; 3415 goto ret; 3416 } 3417 memset(buf, 0, len); 3418 totlen = len; 3419 break; 3420 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3421 if (index == 1) 3422 port = UHCI_PORTSC1; 3423 else if (index == 2) 3424 port = UHCI_PORTSC2; 3425 else { 3426 err = USBD_IOERROR; 3427 goto ret; 3428 } 3429 if (len != 4) { 3430 err = USBD_IOERROR; 3431 goto ret; 3432 } 3433 x = UREAD2(sc, port); 3434 status = change = 0; 3435 if (x & UHCI_PORTSC_CCS) 3436 status |= UPS_CURRENT_CONNECT_STATUS; 3437 if (x & UHCI_PORTSC_CSC) 3438 change |= UPS_C_CONNECT_STATUS; 3439 if (x & UHCI_PORTSC_PE) 3440 status |= UPS_PORT_ENABLED; 3441 if (x & UHCI_PORTSC_POEDC) 3442 change |= UPS_C_PORT_ENABLED; 3443 if (x & UHCI_PORTSC_OCI) 3444 status |= UPS_OVERCURRENT_INDICATOR; 3445 if (x & UHCI_PORTSC_OCIC) 3446 change |= UPS_C_OVERCURRENT_INDICATOR; 3447 if (x & UHCI_PORTSC_SUSP) 3448 status |= UPS_SUSPEND; 3449 if (x & UHCI_PORTSC_LSDA) 3450 status |= UPS_LOW_SPEED; 3451 status |= UPS_PORT_POWER; 3452 if (sc->sc_isreset) 3453 change |= UPS_C_PORT_RESET; 3454 USETW(ps.wPortStatus, status); 3455 USETW(ps.wPortChange, change); 3456 l = min(len, sizeof ps); 3457 memcpy(buf, &ps, l); 3458 totlen = l; 3459 break; 3460 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3461 err = USBD_IOERROR; 3462 goto ret; 3463 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3464 break; 3465 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3466 if (index == 1) 3467 port = UHCI_PORTSC1; 3468 else if (index == 2) 3469 port = UHCI_PORTSC2; 3470 else { 3471 err = USBD_IOERROR; 3472 goto ret; 3473 } 3474 switch(value) { 3475 case UHF_PORT_ENABLE: 3476 x = URWMASK(UREAD2(sc, port)); 3477 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3478 break; 3479 case UHF_PORT_SUSPEND: 3480 x = URWMASK(UREAD2(sc, port)); 3481 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3482 break; 3483 case UHF_PORT_RESET: 3484 err = uhci_portreset(sc, index); 3485 goto ret; 3486 case UHF_PORT_POWER: 3487 /* Pretend we turned on power */ 3488 err = USBD_NORMAL_COMPLETION; 3489 goto ret; 3490 case UHF_C_PORT_CONNECTION: 3491 case UHF_C_PORT_ENABLE: 3492 case UHF_C_PORT_OVER_CURRENT: 3493 case UHF_PORT_CONNECTION: 3494 case UHF_PORT_OVER_CURRENT: 3495 case UHF_PORT_LOW_SPEED: 3496 case UHF_C_PORT_SUSPEND: 3497 case UHF_C_PORT_RESET: 3498 default: 3499 err = USBD_IOERROR; 3500 goto ret; 3501 } 3502 break; 3503 default: 3504 err = USBD_IOERROR; 3505 goto ret; 3506 } 3507 xfer->actlen = totlen; 3508 err = USBD_NORMAL_COMPLETION; 3509 ret: 3510 xfer->status = err; 3511 s = splusb(); 3512 usb_transfer_complete(xfer); 3513 splx(s); 3514 return (USBD_IN_PROGRESS); 3515 } 3516 3517 /* Abort a root control request. */ 3518 void 3519 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3520 { 3521 /* Nothing to do, all transfers are synchronous. */ 3522 } 3523 3524 /* Close the root pipe. */ 3525 void 3526 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3527 { 3528 DPRINTF(("uhci_root_ctrl_close\n")); 3529 } 3530 3531 /* Abort a root interrupt request. */ 3532 void 3533 uhci_root_intr_abort(usbd_xfer_handle xfer) 3534 { 3535 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3536 3537 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3538 sc->sc_intr_xfer = NULL; 3539 3540 if (xfer->pipe->intrxfer == xfer) { 3541 DPRINTF(("uhci_root_intr_abort: remove\n")); 3542 xfer->pipe->intrxfer = 0; 3543 } 3544 xfer->status = USBD_CANCELLED; 3545 #ifdef DIAGNOSTIC 3546 UXFER(xfer)->iinfo.isdone = 1; 3547 #endif 3548 usb_transfer_complete(xfer); 3549 } 3550 3551 usbd_status 3552 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3553 { 3554 usbd_status err; 3555 3556 /* Insert last in queue. */ 3557 err = usb_insert_transfer(xfer); 3558 if (err) 3559 return (err); 3560 3561 /* 3562 * Pipe isn't running (otherwise err would be USBD_INPROG), 3563 * start first 3564 */ 3565 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3566 } 3567 3568 /* Start a transfer on the root interrupt pipe */ 3569 usbd_status 3570 uhci_root_intr_start(usbd_xfer_handle xfer) 3571 { 3572 usbd_pipe_handle pipe = xfer->pipe; 3573 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3574 unsigned int ival; 3575 3576 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3577 xfer, xfer->length, xfer->flags)); 3578 3579 if (sc->sc_dying) 3580 return (USBD_IOERROR); 3581 3582 /* XXX temporary variable needed to avoid gcc3 warning */ 3583 ival = xfer->pipe->endpoint->edesc->bInterval; 3584 sc->sc_ival = mstohz(ival); 3585 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3586 sc->sc_intr_xfer = xfer; 3587 return (USBD_IN_PROGRESS); 3588 } 3589 3590 /* Close the root interrupt pipe. */ 3591 void 3592 uhci_root_intr_close(usbd_pipe_handle pipe) 3593 { 3594 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3595 3596 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3597 sc->sc_intr_xfer = NULL; 3598 DPRINTF(("uhci_root_intr_close\n")); 3599 } 3600
Indexes created Tue Sep 30 20:09:53 GMT 2025