uhci.c revision 1.211.2.1
1 /* $NetBSD: uhci.c,v 1.211.2.1 2008/02/18 21:06:26 mjf 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 1.211.2.1 2008/02/18 21:06:26 mjf 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 <sys/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 #include <sys/bus.h> 74 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 #include <dev/usb/usbroothub_subr.h> 86 87 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 88 /*#define UHCI_CTL_LOOP */ 89 90 #if defined(__FreeBSD__) 91 #include <machine/clock.h> 92 93 #define delay(d) DELAY(d) 94 #endif 95 96 #if defined(__OpenBSD__) 97 struct cfdriver uhci_cd = { 98 NULL, "uhci", DV_DULL 99 }; 100 #endif 101 102 #ifdef UHCI_DEBUG 103 uhci_softc_t *thesc; 104 #define DPRINTF(x) if (uhcidebug) printf x 105 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 106 int uhcidebug = 0; 107 int uhcinoloop = 0; 108 #ifndef __NetBSD__ 109 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 110 #endif 111 #else 112 #define DPRINTF(x) 113 #define DPRINTFN(n,x) 114 #endif 115 116 /* 117 * The UHCI controller is little endian, so on big endian machines 118 * the data stored in memory needs to be swapped. 119 */ 120 #if defined(__FreeBSD__) || defined(__OpenBSD__) 121 #if BYTE_ORDER == BIG_ENDIAN 122 #define htole32(x) (bswap32(x)) 123 #define le32toh(x) (bswap32(x)) 124 #else 125 #define htole32(x) (x) 126 #define le32toh(x) (x) 127 #endif 128 #endif 129 130 struct uhci_pipe { 131 struct usbd_pipe pipe; 132 int nexttoggle; 133 134 u_char aborting; 135 usbd_xfer_handle abortstart, abortend; 136 137 /* Info needed for different pipe kinds. */ 138 union { 139 /* Control pipe */ 140 struct { 141 uhci_soft_qh_t *sqh; 142 usb_dma_t reqdma; 143 uhci_soft_td_t *setup, *stat; 144 u_int length; 145 } ctl; 146 /* Interrupt pipe */ 147 struct { 148 int npoll; 149 int isread; 150 uhci_soft_qh_t **qhs; 151 } intr; 152 /* Bulk pipe */ 153 struct { 154 uhci_soft_qh_t *sqh; 155 u_int length; 156 int isread; 157 } bulk; 158 /* Iso pipe */ 159 struct iso { 160 uhci_soft_td_t **stds; 161 int next, inuse; 162 } iso; 163 } u; 164 }; 165 166 Static void uhci_globalreset(uhci_softc_t *); 167 Static usbd_status uhci_portreset(uhci_softc_t*, int); 168 Static void uhci_reset(uhci_softc_t *); 169 Static void uhci_shutdown(void *v); 170 Static void uhci_power(int, void *); 171 Static usbd_status uhci_run(uhci_softc_t *, int run); 172 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 173 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 174 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 175 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 176 #if 0 177 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 178 uhci_intr_info_t *); 179 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 180 #endif 181 182 Static void uhci_free_std_chain(uhci_softc_t *, 183 uhci_soft_td_t *, uhci_soft_td_t *); 184 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 185 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 186 uhci_soft_td_t **, uhci_soft_td_t **); 187 Static void uhci_poll_hub(void *); 188 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 189 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 190 Static void uhci_idone(uhci_intr_info_t *); 191 192 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 193 194 Static void uhci_timeout(void *); 195 Static void uhci_timeout_task(void *); 196 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 198 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 199 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 200 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 201 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 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 const 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 const 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 const 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 const 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 const 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 const 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 const 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 sc->sc_dying = 1; 577 if (sc->sc_child != NULL) 578 rv = config_deactivate(sc->sc_child); 579 break; 580 } 581 return (rv); 582 } 583 584 int 585 uhci_detach(struct uhci_softc *sc, int flags) 586 { 587 usbd_xfer_handle xfer; 588 int rv = 0; 589 590 if (sc->sc_child != NULL) 591 rv = config_detach(sc->sc_child, flags); 592 593 if (rv != 0) 594 return (rv); 595 596 #if defined(__NetBSD__) || defined(__OpenBSD__) 597 powerhook_disestablish(sc->sc_powerhook); 598 shutdownhook_disestablish(sc->sc_shutdownhook); 599 #endif 600 601 /* Free all xfers associated with this HC. */ 602 for (;;) { 603 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 604 if (xfer == NULL) 605 break; 606 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 607 free(xfer, M_USB); 608 } 609 610 /* XXX free other data structures XXX */ 611 612 return (rv); 613 } 614 #endif 615 616 usbd_status 617 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 618 { 619 struct uhci_softc *sc = (struct uhci_softc *)bus; 620 usbd_status status; 621 u_int32_t n; 622 623 /* 624 * XXX 625 * Since we are allocating a buffer we can assume that we will 626 * need TDs for it. Since we don't want to allocate those from 627 * an interrupt context, we allocate them here and free them again. 628 * This is no guarantee that we'll get the TDs next time... 629 */ 630 n = size / 8; 631 if (n > 16) { 632 u_int32_t i; 633 uhci_soft_td_t **stds; 634 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 635 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 636 M_WAITOK|M_ZERO); 637 for(i=0; i < n; i++) 638 stds[i] = uhci_alloc_std(sc); 639 for(i=0; i < n; i++) 640 if (stds[i] != NULL) 641 uhci_free_std(sc, stds[i]); 642 free(stds, M_TEMP); 643 } 644 645 646 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 647 #ifdef __NetBSD__ 648 if (status == USBD_NOMEM) 649 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 650 #endif 651 return status; 652 } 653 654 void 655 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 656 { 657 #ifdef __NetBSD__ 658 if (dma->block->flags & USB_DMA_RESERVE) { 659 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 660 dma); 661 return; 662 } 663 #endif 664 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 665 } 666 667 usbd_xfer_handle 668 uhci_allocx(struct usbd_bus *bus) 669 { 670 struct uhci_softc *sc = (struct uhci_softc *)bus; 671 usbd_xfer_handle xfer; 672 673 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 674 if (xfer != NULL) { 675 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 676 #ifdef DIAGNOSTIC 677 if (xfer->busy_free != XFER_FREE) { 678 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 679 xfer->busy_free); 680 } 681 #endif 682 } else { 683 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 684 } 685 if (xfer != NULL) { 686 memset(xfer, 0, sizeof (struct uhci_xfer)); 687 UXFER(xfer)->iinfo.sc = sc; 688 #ifdef DIAGNOSTIC 689 UXFER(xfer)->iinfo.isdone = 1; 690 xfer->busy_free = XFER_BUSY; 691 #endif 692 } 693 return (xfer); 694 } 695 696 void 697 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 698 { 699 struct uhci_softc *sc = (struct uhci_softc *)bus; 700 701 #ifdef DIAGNOSTIC 702 if (xfer->busy_free != XFER_BUSY) { 703 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 704 xfer->busy_free); 705 } 706 xfer->busy_free = XFER_FREE; 707 if (!UXFER(xfer)->iinfo.isdone) { 708 printf("uhci_freex: !isdone\n"); 709 } 710 #endif 711 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 712 } 713 714 /* 715 * Shut down the controller when the system is going down. 716 */ 717 void 718 uhci_shutdown(void *v) 719 { 720 uhci_softc_t *sc = v; 721 int s; 722 723 DPRINTF(("uhci_shutdown: stopping the HC\n")); 724 725 /* 726 * Use polling mode to prevent the interrupts shutting 727 * us down before we shut them down. 728 */ 729 s = splhardusb(); 730 sc->sc_bus.use_polling++; 731 UWRITE2(sc, UHCI_INTR, 0); 732 uhci_globalreset(sc); 733 uhci_reset(sc); 734 if (cmd & UHCI_CMD_RS) 735 uhci_run(sc, 0); 736 737 /* restore saved state */ 738 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 739 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 740 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 741 742 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 743 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 744 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 745 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 746 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 747 UHCICMD(sc, UHCI_CMD_MAXP); 748 uhci_run(sc, 1); /* and start traffic again */ 749 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 750 sc->sc_bus.use_polling--; 751 splx(s); 752 } 753 754 /* 755 * Handle suspend/resume. 756 * 757 * We need to switch to polling mode here, because this routine is 758 * called from an interrupt context. This is all right since we 759 * are almost suspended anyway. 760 */ 761 void 762 uhci_power(int why, void *v) 763 { 764 uhci_softc_t *sc = v; 765 int cmd; 766 int s; 767 768 s = splhardusb(); 769 cmd = UREAD2(sc, UHCI_CMD); 770 771 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 772 sc, why, sc->sc_suspend, cmd)); 773 774 switch (why) { 775 case PWR_SUSPEND: 776 case PWR_STANDBY: 777 #ifdef UHCI_DEBUG 778 if (uhcidebug > 2) 779 uhci_dumpregs(sc); 780 #endif 781 if (sc->sc_intr_xfer != NULL) 782 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 783 sc->sc_intr_xfer); 784 sc->sc_bus.use_polling++; 785 uhci_run(sc, 0); /* stop the controller */ 786 cmd &= ~UHCI_CMD_RS; 787 788 /* save some state if BIOS doesn't */ 789 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 790 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 791 792 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 793 794 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 795 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 796 sc->sc_suspend = why; 797 sc->sc_bus.use_polling--; 798 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 799 break; 800 case PWR_RESUME: 801 #ifdef DIAGNOSTIC 802 if (sc->sc_suspend == PWR_RESUME) 803 printf("uhci_power: weird, resume without suspend.\n"); 804 #endif 805 sc->sc_bus.use_polling++; 806 sc->sc_suspend = why; 807 if (cmd & UHCI_CMD_RS) 808 uhci_run(sc, 0); /* in case BIOS has started it */ 809 810 /* restore saved state */ 811 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 812 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 813 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 814 815 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 816 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 817 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 818 UHCICMD(sc, UHCI_CMD_MAXP); 819 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 820 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 821 uhci_run(sc, 1); /* and start traffic again */ 822 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 823 sc->sc_bus.use_polling--; 824 if (sc->sc_intr_xfer != NULL) 825 usb_callout(sc->sc_poll_handle, sc->sc_ival, 826 uhci_poll_hub, sc->sc_intr_xfer); 827 #ifdef UHCI_DEBUG 828 if (uhcidebug > 2) 829 uhci_dumpregs(sc); 830 #endif 831 break; 832 case PWR_SOFTSUSPEND: 833 case PWR_SOFTSTANDBY: 834 case PWR_SOFTRESUME: 835 break; 836 } 837 splx(s); 838 } 839 840 #ifdef UHCI_DEBUG 841 Static void 842 uhci_dumpregs(uhci_softc_t *sc) 843 { 844 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 845 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 846 USBDEVNAME(sc->sc_bus.bdev), 847 UREAD2(sc, UHCI_CMD), 848 UREAD2(sc, UHCI_STS), 849 UREAD2(sc, UHCI_INTR), 850 UREAD2(sc, UHCI_FRNUM), 851 UREAD4(sc, UHCI_FLBASEADDR), 852 UREAD1(sc, UHCI_SOF), 853 UREAD2(sc, UHCI_PORTSC1), 854 UREAD2(sc, UHCI_PORTSC2))); 855 } 856 857 void 858 uhci_dump_td(uhci_soft_td_t *p) 859 { 860 char sbuf[128], sbuf2[128]; 861 862 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 863 "token=0x%08lx buffer=0x%08lx\n", 864 p, (long)p->physaddr, 865 (long)le32toh(p->td.td_link), 866 (long)le32toh(p->td.td_status), 867 (long)le32toh(p->td.td_token), 868 (long)le32toh(p->td.td_buffer))); 869 870 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 871 sbuf, sizeof(sbuf)); 872 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 873 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 874 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 875 sbuf2, sizeof(sbuf2)); 876 877 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 878 "D=%d,maxlen=%d\n", sbuf, sbuf2, 879 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 880 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 881 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 882 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 883 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 884 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 885 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 886 } 887 888 void 889 uhci_dump_qh(uhci_soft_qh_t *sqh) 890 { 891 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 892 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 893 le32toh(sqh->qh.qh_elink))); 894 } 895 896 897 #if 1 898 void 899 uhci_dump(void) 900 { 901 uhci_dump_all(thesc); 902 } 903 #endif 904 905 void 906 uhci_dump_all(uhci_softc_t *sc) 907 { 908 uhci_dumpregs(sc); 909 printf("intrs=%d\n", sc->sc_bus.no_intrs); 910 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 911 uhci_dump_qh(sc->sc_lctl_start); 912 } 913 914 915 void 916 uhci_dump_qhs(uhci_soft_qh_t *sqh) 917 { 918 uhci_dump_qh(sqh); 919 920 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 921 * Traverses sideways first, then down. 922 * 923 * QH1 924 * QH2 925 * No QH 926 * TD2.1 927 * TD2.2 928 * TD1.1 929 * etc. 930 * 931 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 932 */ 933 934 935 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 936 uhci_dump_qhs(sqh->hlink); 937 else 938 DPRINTF(("No QH\n")); 939 940 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 941 uhci_dump_tds(sqh->elink); 942 else 943 DPRINTF(("No TD\n")); 944 } 945 946 void 947 uhci_dump_tds(uhci_soft_td_t *std) 948 { 949 uhci_soft_td_t *td; 950 951 for(td = std; td != NULL; td = td->link.std) { 952 uhci_dump_td(td); 953 954 /* Check whether the link pointer in this TD marks 955 * the link pointer as end of queue. This avoids 956 * printing the free list in case the queue/TD has 957 * already been moved there (seatbelt). 958 */ 959 if (le32toh(td->td.td_link) & UHCI_PTR_T || 960 le32toh(td->td.td_link) == 0) 961 break; 962 } 963 } 964 965 Static void 966 uhci_dump_ii(uhci_intr_info_t *ii) 967 { 968 usbd_pipe_handle pipe; 969 usb_endpoint_descriptor_t *ed; 970 usbd_device_handle dev; 971 972 #ifdef DIAGNOSTIC 973 #define DONE ii->isdone 974 #else 975 #define DONE 0 976 #endif 977 if (ii == NULL) { 978 printf("ii NULL\n"); 979 return; 980 } 981 if (ii->xfer == NULL) { 982 printf("ii %p: done=%d xfer=NULL\n", 983 ii, DONE); 984 return; 985 } 986 pipe = ii->xfer->pipe; 987 if (pipe == NULL) { 988 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 989 ii, DONE, ii->xfer); 990 return; 991 } 992 if (pipe->endpoint == NULL) { 993 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 994 ii, DONE, ii->xfer, pipe); 995 return; 996 } 997 if (pipe->device == NULL) { 998 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 999 ii, DONE, ii->xfer, pipe); 1000 return; 1001 } 1002 ed = pipe->endpoint->edesc; 1003 dev = pipe->device; 1004 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", 1005 ii, DONE, ii->xfer, dev, 1006 UGETW(dev->ddesc.idVendor), 1007 UGETW(dev->ddesc.idProduct), 1008 dev->address, pipe, 1009 ed->bEndpointAddress, ed->bmAttributes); 1010 #undef DONE 1011 } 1012 1013 void uhci_dump_iis(struct uhci_softc *sc); 1014 void 1015 uhci_dump_iis(struct uhci_softc *sc) 1016 { 1017 uhci_intr_info_t *ii; 1018 1019 printf("intr_info list:\n"); 1020 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1021 uhci_dump_ii(ii); 1022 } 1023 1024 void iidump(void); 1025 void iidump(void) { uhci_dump_iis(thesc); } 1026 1027 #endif 1028 1029 /* 1030 * This routine is executed periodically and simulates interrupts 1031 * from the root controller interrupt pipe for port status change. 1032 */ 1033 void 1034 uhci_poll_hub(void *addr) 1035 { 1036 usbd_xfer_handle xfer = addr; 1037 usbd_pipe_handle pipe = xfer->pipe; 1038 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1039 int s; 1040 u_char *p; 1041 1042 DPRINTFN(20, ("uhci_poll_hub\n")); 1043 1044 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1045 1046 p = KERNADDR(&xfer->dmabuf, 0); 1047 p[0] = 0; 1048 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1049 p[0] |= 1<<1; 1050 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1051 p[0] |= 1<<2; 1052 if (p[0] == 0) 1053 /* No change, try again in a while */ 1054 return; 1055 1056 xfer->actlen = 1; 1057 xfer->status = USBD_NORMAL_COMPLETION; 1058 s = splusb(); 1059 xfer->device->bus->intr_context++; 1060 usb_transfer_complete(xfer); 1061 xfer->device->bus->intr_context--; 1062 splx(s); 1063 } 1064 1065 void 1066 uhci_root_intr_done(usbd_xfer_handle xfer) 1067 { 1068 } 1069 1070 void 1071 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1072 { 1073 } 1074 1075 /* 1076 * Let the last QH loop back to the high speed control transfer QH. 1077 * This is what intel calls "bandwidth reclamation" and improves 1078 * USB performance a lot for some devices. 1079 * If we are already looping, just count it. 1080 */ 1081 void 1082 uhci_add_loop(uhci_softc_t *sc) { 1083 #ifdef UHCI_DEBUG 1084 if (uhcinoloop) 1085 return; 1086 #endif 1087 if (++sc->sc_loops == 1) { 1088 DPRINTFN(5,("uhci_start_loop: add\n")); 1089 /* Note, we don't loop back the soft pointer. */ 1090 sc->sc_last_qh->qh.qh_hlink = 1091 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1092 } 1093 } 1094 1095 void 1096 uhci_rem_loop(uhci_softc_t *sc) { 1097 #ifdef UHCI_DEBUG 1098 if (uhcinoloop) 1099 return; 1100 #endif 1101 if (--sc->sc_loops == 0) { 1102 DPRINTFN(5,("uhci_end_loop: remove\n")); 1103 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1104 } 1105 } 1106 1107 /* Add high speed control QH, called at splusb(). */ 1108 void 1109 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1110 { 1111 uhci_soft_qh_t *eqh; 1112 1113 SPLUSBCHECK; 1114 1115 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1116 eqh = sc->sc_hctl_end; 1117 sqh->hlink = eqh->hlink; 1118 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1119 eqh->hlink = sqh; 1120 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1121 sc->sc_hctl_end = sqh; 1122 #ifdef UHCI_CTL_LOOP 1123 uhci_add_loop(sc); 1124 #endif 1125 } 1126 1127 /* Remove high speed control QH, called at splusb(). */ 1128 void 1129 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1130 { 1131 uhci_soft_qh_t *pqh; 1132 1133 SPLUSBCHECK; 1134 1135 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1136 #ifdef UHCI_CTL_LOOP 1137 uhci_rem_loop(sc); 1138 #endif 1139 /* 1140 * The T bit should be set in the elink of the QH so that the HC 1141 * doesn't follow the pointer. This condition may fail if the 1142 * the transferred packet was short so that the QH still points 1143 * at the last used TD. 1144 * In this case we set the T bit and wait a little for the HC 1145 * to stop looking at the TD. 1146 */ 1147 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1148 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1149 delay(UHCI_QH_REMOVE_DELAY); 1150 } 1151 1152 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1153 pqh->hlink = sqh->hlink; 1154 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1155 delay(UHCI_QH_REMOVE_DELAY); 1156 if (sc->sc_hctl_end == sqh) 1157 sc->sc_hctl_end = pqh; 1158 } 1159 1160 /* Add low speed control QH, called at splusb(). */ 1161 void 1162 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1163 { 1164 uhci_soft_qh_t *eqh; 1165 1166 SPLUSBCHECK; 1167 1168 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1169 eqh = sc->sc_lctl_end; 1170 sqh->hlink = eqh->hlink; 1171 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1172 eqh->hlink = sqh; 1173 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1174 sc->sc_lctl_end = sqh; 1175 } 1176 1177 /* Remove low speed control QH, called at splusb(). */ 1178 void 1179 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1180 { 1181 uhci_soft_qh_t *pqh; 1182 1183 SPLUSBCHECK; 1184 1185 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1186 /* See comment in uhci_remove_hs_ctrl() */ 1187 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1188 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1189 delay(UHCI_QH_REMOVE_DELAY); 1190 } 1191 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1192 pqh->hlink = sqh->hlink; 1193 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1194 delay(UHCI_QH_REMOVE_DELAY); 1195 if (sc->sc_lctl_end == sqh) 1196 sc->sc_lctl_end = pqh; 1197 } 1198 1199 /* Add bulk QH, called at splusb(). */ 1200 void 1201 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1202 { 1203 uhci_soft_qh_t *eqh; 1204 1205 SPLUSBCHECK; 1206 1207 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1208 eqh = sc->sc_bulk_end; 1209 sqh->hlink = eqh->hlink; 1210 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1211 eqh->hlink = sqh; 1212 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1213 sc->sc_bulk_end = sqh; 1214 uhci_add_loop(sc); 1215 } 1216 1217 /* Remove bulk QH, called at splusb(). */ 1218 void 1219 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1220 { 1221 uhci_soft_qh_t *pqh; 1222 1223 SPLUSBCHECK; 1224 1225 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1226 uhci_rem_loop(sc); 1227 /* See comment in uhci_remove_hs_ctrl() */ 1228 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1229 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1230 delay(UHCI_QH_REMOVE_DELAY); 1231 } 1232 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1233 pqh->hlink = sqh->hlink; 1234 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1235 delay(UHCI_QH_REMOVE_DELAY); 1236 if (sc->sc_bulk_end == sqh) 1237 sc->sc_bulk_end = pqh; 1238 } 1239 1240 Static int uhci_intr1(uhci_softc_t *); 1241 1242 int 1243 uhci_intr(void *arg) 1244 { 1245 uhci_softc_t *sc = arg; 1246 1247 if (sc->sc_dying) 1248 return (0); 1249 1250 if (sc->sc_bus.use_polling) { 1251 #ifdef DIAGNOSTIC 1252 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1253 #endif 1254 return (0); 1255 } 1256 1257 return (uhci_intr1(sc)); 1258 } 1259 1260 int 1261 uhci_intr1(uhci_softc_t *sc) 1262 { 1263 int status; 1264 int ack; 1265 1266 #ifdef UHCI_DEBUG 1267 if (uhcidebug > 15) { 1268 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1269 uhci_dumpregs(sc); 1270 } 1271 #endif 1272 1273 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1274 if (status == 0) /* The interrupt was not for us. */ 1275 return (0); 1276 1277 if (sc->sc_suspend != PWR_RESUME) { 1278 #ifdef DIAGNOSTIC 1279 printf("%s: interrupt while not operating ignored\n", 1280 USBDEVNAME(sc->sc_bus.bdev)); 1281 #endif 1282 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1283 return (0); 1284 } 1285 1286 ack = 0; 1287 if (status & UHCI_STS_USBINT) 1288 ack |= UHCI_STS_USBINT; 1289 if (status & UHCI_STS_USBEI) 1290 ack |= UHCI_STS_USBEI; 1291 if (status & UHCI_STS_RD) { 1292 ack |= UHCI_STS_RD; 1293 #ifdef UHCI_DEBUG 1294 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1295 #endif 1296 } 1297 if (status & UHCI_STS_HSE) { 1298 ack |= UHCI_STS_HSE; 1299 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1300 } 1301 if (status & UHCI_STS_HCPE) { 1302 ack |= UHCI_STS_HCPE; 1303 printf("%s: host controller process error\n", 1304 USBDEVNAME(sc->sc_bus.bdev)); 1305 } 1306 if (status & UHCI_STS_HCH) { 1307 /* no acknowledge needed */ 1308 if (!sc->sc_dying) { 1309 printf("%s: host controller halted\n", 1310 USBDEVNAME(sc->sc_bus.bdev)); 1311 #ifdef UHCI_DEBUG 1312 uhci_dump_all(sc); 1313 #endif 1314 } 1315 sc->sc_dying = 1; 1316 } 1317 1318 if (!ack) 1319 return (0); /* nothing to acknowledge */ 1320 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1321 1322 sc->sc_bus.no_intrs++; 1323 usb_schedsoftintr(&sc->sc_bus); 1324 1325 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1326 1327 return (1); 1328 } 1329 1330 void 1331 uhci_softintr(void *v) 1332 { 1333 uhci_softc_t *sc = v; 1334 uhci_intr_info_t *ii, *nextii; 1335 1336 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1337 sc->sc_bus.intr_context)); 1338 1339 sc->sc_bus.intr_context++; 1340 1341 /* 1342 * Interrupts on UHCI really suck. When the host controller 1343 * interrupts because a transfer is completed there is no 1344 * way of knowing which transfer it was. You can scan down 1345 * the TDs and QHs of the previous frame to limit the search, 1346 * but that assumes that the interrupt was not delayed by more 1347 * than 1 ms, which may not always be true (e.g. after debug 1348 * output on a slow console). 1349 * We scan all interrupt descriptors to see if any have 1350 * completed. 1351 */ 1352 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1353 nextii = LIST_NEXT(ii, list); 1354 uhci_check_intr(sc, ii); 1355 } 1356 1357 #ifdef USB_USE_SOFTINTR 1358 if (sc->sc_softwake) { 1359 sc->sc_softwake = 0; 1360 wakeup(&sc->sc_softwake); 1361 } 1362 #endif /* USB_USE_SOFTINTR */ 1363 1364 sc->sc_bus.intr_context--; 1365 } 1366 1367 /* Check for an interrupt. */ 1368 void 1369 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1370 { 1371 uhci_soft_td_t *std, *lstd; 1372 u_int32_t status; 1373 1374 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1375 #ifdef DIAGNOSTIC 1376 if (ii == NULL) { 1377 printf("uhci_check_intr: no ii? %p\n", ii); 1378 return; 1379 } 1380 #endif 1381 if (ii->xfer->status == USBD_CANCELLED || 1382 ii->xfer->status == USBD_TIMEOUT) { 1383 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1384 return; 1385 } 1386 1387 if (ii->stdstart == NULL) 1388 return; 1389 lstd = ii->stdend; 1390 #ifdef DIAGNOSTIC 1391 if (lstd == NULL) { 1392 printf("uhci_check_intr: std==0\n"); 1393 return; 1394 } 1395 #endif 1396 /* 1397 * If the last TD is still active we need to check whether there 1398 * is an error somewhere in the middle, or whether there was a 1399 * short packet (SPD and not ACTIVE). 1400 */ 1401 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1402 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1403 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1404 status = le32toh(std->td.td_status); 1405 /* If there's an active TD the xfer isn't done. */ 1406 if (status & UHCI_TD_ACTIVE) 1407 break; 1408 /* Any kind of error makes the xfer done. */ 1409 if (status & UHCI_TD_STALLED) 1410 goto done; 1411 /* We want short packets, and it is short: it's done */ 1412 if ((status & UHCI_TD_SPD) && 1413 UHCI_TD_GET_ACTLEN(status) < 1414 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1415 goto done; 1416 } 1417 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1418 ii, ii->stdstart)); 1419 return; 1420 } 1421 done: 1422 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1423 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1424 uhci_idone(ii); 1425 } 1426 1427 /* Called at splusb() */ 1428 void 1429 uhci_idone(uhci_intr_info_t *ii) 1430 { 1431 usbd_xfer_handle xfer = ii->xfer; 1432 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1433 uhci_soft_td_t *std; 1434 u_int32_t status = 0, nstatus; 1435 int actlen; 1436 1437 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1438 #ifdef DIAGNOSTIC 1439 { 1440 int s = splhigh(); 1441 if (ii->isdone) { 1442 splx(s); 1443 #ifdef UHCI_DEBUG 1444 printf("uhci_idone: ii is done!\n "); 1445 uhci_dump_ii(ii); 1446 #else 1447 printf("uhci_idone: ii=%p is done!\n", ii); 1448 #endif 1449 return; 1450 } 1451 ii->isdone = 1; 1452 splx(s); 1453 } 1454 #endif 1455 1456 if (xfer->nframes != 0) { 1457 /* Isoc transfer, do things differently. */ 1458 uhci_soft_td_t **stds = upipe->u.iso.stds; 1459 int i, n, nframes, len; 1460 1461 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1462 1463 nframes = xfer->nframes; 1464 actlen = 0; 1465 n = UXFER(xfer)->curframe; 1466 for (i = 0; i < nframes; i++) { 1467 std = stds[n]; 1468 #ifdef UHCI_DEBUG 1469 if (uhcidebug > 5) { 1470 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1471 uhci_dump_td(std); 1472 } 1473 #endif 1474 if (++n >= UHCI_VFRAMELIST_COUNT) 1475 n = 0; 1476 status = le32toh(std->td.td_status); 1477 len = UHCI_TD_GET_ACTLEN(status); 1478 xfer->frlengths[i] = len; 1479 actlen += len; 1480 } 1481 upipe->u.iso.inuse -= nframes; 1482 xfer->actlen = actlen; 1483 xfer->status = USBD_NORMAL_COMPLETION; 1484 goto end; 1485 } 1486 1487 #ifdef UHCI_DEBUG 1488 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1489 ii, xfer, upipe)); 1490 if (uhcidebug > 10) 1491 uhci_dump_tds(ii->stdstart); 1492 #endif 1493 1494 /* The transfer is done, compute actual length and status. */ 1495 actlen = 0; 1496 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1497 nstatus = le32toh(std->td.td_status); 1498 if (nstatus & UHCI_TD_ACTIVE) 1499 break; 1500 1501 status = nstatus; 1502 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1503 UHCI_TD_PID_SETUP) 1504 actlen += UHCI_TD_GET_ACTLEN(status); 1505 else { 1506 /* 1507 * UHCI will report CRCTO in addition to a STALL or NAK 1508 * for a SETUP transaction. See section 3.2.2, "TD 1509 * CONTROL AND STATUS". 1510 */ 1511 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1512 status &= ~UHCI_TD_CRCTO; 1513 } 1514 } 1515 /* If there are left over TDs we need to update the toggle. */ 1516 if (std != NULL) 1517 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1518 1519 status &= UHCI_TD_ERROR; 1520 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1521 actlen, status)); 1522 xfer->actlen = actlen; 1523 if (status != 0) { 1524 #ifdef UHCI_DEBUG 1525 char sbuf[128]; 1526 1527 bitmask_snprintf((u_int32_t)status, 1528 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1529 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1530 sbuf, sizeof(sbuf)); 1531 1532 DPRINTFN((status == UHCI_TD_STALLED)*10, 1533 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1534 "status 0x%s\n", 1535 xfer->pipe->device->address, 1536 xfer->pipe->endpoint->edesc->bEndpointAddress, 1537 sbuf)); 1538 #endif 1539 1540 if (status == UHCI_TD_STALLED) 1541 xfer->status = USBD_STALLED; 1542 else 1543 xfer->status = USBD_IOERROR; /* more info XXX */ 1544 } else { 1545 xfer->status = USBD_NORMAL_COMPLETION; 1546 } 1547 1548 end: 1549 usb_transfer_complete(xfer); 1550 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1551 } 1552 1553 /* 1554 * Called when a request does not complete. 1555 */ 1556 void 1557 uhci_timeout(void *addr) 1558 { 1559 uhci_intr_info_t *ii = addr; 1560 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1561 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1562 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1563 1564 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1565 1566 if (sc->sc_dying) { 1567 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1568 return; 1569 } 1570 1571 /* Execute the abort in a process context. */ 1572 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1573 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1574 USB_TASKQ_HC); 1575 } 1576 1577 void 1578 uhci_timeout_task(void *addr) 1579 { 1580 usbd_xfer_handle xfer = addr; 1581 int s; 1582 1583 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1584 1585 s = splusb(); 1586 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1587 splx(s); 1588 } 1589 1590 /* 1591 * Wait here until controller claims to have an interrupt. 1592 * Then call uhci_intr and return. Use timeout to avoid waiting 1593 * too long. 1594 * Only used during boot when interrupts are not enabled yet. 1595 */ 1596 void 1597 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1598 { 1599 int timo = xfer->timeout; 1600 uhci_intr_info_t *ii; 1601 1602 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1603 1604 xfer->status = USBD_IN_PROGRESS; 1605 for (; timo >= 0; timo--) { 1606 usb_delay_ms(&sc->sc_bus, 1); 1607 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1608 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1609 uhci_intr1(sc); 1610 if (xfer->status != USBD_IN_PROGRESS) 1611 return; 1612 } 1613 } 1614 1615 /* Timeout */ 1616 DPRINTF(("uhci_waitintr: timeout\n")); 1617 for (ii = LIST_FIRST(&sc->sc_intrhead); 1618 ii != NULL && ii->xfer != xfer; 1619 ii = LIST_NEXT(ii, list)) 1620 ; 1621 #ifdef DIAGNOSTIC 1622 if (ii == NULL) 1623 panic("uhci_waitintr: lost intr_info"); 1624 #endif 1625 uhci_idone(ii); 1626 } 1627 1628 void 1629 uhci_poll(struct usbd_bus *bus) 1630 { 1631 uhci_softc_t *sc = (uhci_softc_t *)bus; 1632 1633 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1634 uhci_intr1(sc); 1635 } 1636 1637 void 1638 uhci_reset(uhci_softc_t *sc) 1639 { 1640 int n; 1641 1642 UHCICMD(sc, UHCI_CMD_HCRESET); 1643 /* The reset bit goes low when the controller is done. */ 1644 for (n = 0; n < UHCI_RESET_TIMEOUT && 1645 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1646 usb_delay_ms(&sc->sc_bus, 1); 1647 if (n >= UHCI_RESET_TIMEOUT) 1648 printf("%s: controller did not reset\n", 1649 USBDEVNAME(sc->sc_bus.bdev)); 1650 } 1651 1652 usbd_status 1653 uhci_run(uhci_softc_t *sc, int run) 1654 { 1655 int s, n, running; 1656 u_int16_t cmd; 1657 1658 run = run != 0; 1659 s = splhardusb(); 1660 DPRINTF(("uhci_run: setting run=%d\n", run)); 1661 cmd = UREAD2(sc, UHCI_CMD); 1662 if (run) 1663 cmd |= UHCI_CMD_RS; 1664 else 1665 cmd &= ~UHCI_CMD_RS; 1666 UHCICMD(sc, cmd); 1667 for(n = 0; n < 10; n++) { 1668 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1669 /* return when we've entered the state we want */ 1670 if (run == running) { 1671 splx(s); 1672 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1673 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1674 return (USBD_NORMAL_COMPLETION); 1675 } 1676 usb_delay_ms(&sc->sc_bus, 1); 1677 } 1678 splx(s); 1679 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1680 run ? "start" : "stop"); 1681 return (USBD_IOERROR); 1682 } 1683 1684 /* 1685 * Memory management routines. 1686 * uhci_alloc_std allocates TDs 1687 * uhci_alloc_sqh allocates QHs 1688 * These two routines do their own free list management, 1689 * partly for speed, partly because allocating DMAable memory 1690 * has page size granularaity so much memory would be wasted if 1691 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1692 */ 1693 1694 uhci_soft_td_t * 1695 uhci_alloc_std(uhci_softc_t *sc) 1696 { 1697 uhci_soft_td_t *std; 1698 usbd_status err; 1699 int i, offs; 1700 usb_dma_t dma; 1701 1702 if (sc->sc_freetds == NULL) { 1703 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1704 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1705 UHCI_TD_ALIGN, &dma); 1706 if (err) 1707 return (0); 1708 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1709 offs = i * UHCI_STD_SIZE; 1710 std = KERNADDR(&dma, offs); 1711 std->physaddr = DMAADDR(&dma, offs); 1712 std->link.std = sc->sc_freetds; 1713 sc->sc_freetds = std; 1714 } 1715 } 1716 std = sc->sc_freetds; 1717 sc->sc_freetds = std->link.std; 1718 memset(&std->td, 0, sizeof(uhci_td_t)); 1719 return std; 1720 } 1721 1722 void 1723 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1724 { 1725 #ifdef DIAGNOSTIC 1726 #define TD_IS_FREE 0x12345678 1727 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1728 printf("uhci_free_std: freeing free TD %p\n", std); 1729 return; 1730 } 1731 std->td.td_token = htole32(TD_IS_FREE); 1732 #endif 1733 std->link.std = sc->sc_freetds; 1734 sc->sc_freetds = std; 1735 } 1736 1737 uhci_soft_qh_t * 1738 uhci_alloc_sqh(uhci_softc_t *sc) 1739 { 1740 uhci_soft_qh_t *sqh; 1741 usbd_status err; 1742 int i, offs; 1743 usb_dma_t dma; 1744 1745 if (sc->sc_freeqhs == NULL) { 1746 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1747 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1748 UHCI_QH_ALIGN, &dma); 1749 if (err) 1750 return (0); 1751 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1752 offs = i * UHCI_SQH_SIZE; 1753 sqh = KERNADDR(&dma, offs); 1754 sqh->physaddr = DMAADDR(&dma, offs); 1755 sqh->hlink = sc->sc_freeqhs; 1756 sc->sc_freeqhs = sqh; 1757 } 1758 } 1759 sqh = sc->sc_freeqhs; 1760 sc->sc_freeqhs = sqh->hlink; 1761 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1762 return (sqh); 1763 } 1764 1765 void 1766 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1767 { 1768 sqh->hlink = sc->sc_freeqhs; 1769 sc->sc_freeqhs = sqh; 1770 } 1771 1772 void 1773 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1774 uhci_soft_td_t *stdend) 1775 { 1776 uhci_soft_td_t *p; 1777 1778 for (; std != stdend; std = p) { 1779 p = std->link.std; 1780 uhci_free_std(sc, std); 1781 } 1782 } 1783 1784 usbd_status 1785 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1786 int rd, u_int16_t flags, usb_dma_t *dma, 1787 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1788 { 1789 uhci_soft_td_t *p, *lastp; 1790 uhci_physaddr_t lastlink; 1791 int i, ntd, l, tog, maxp; 1792 u_int32_t status; 1793 int addr = upipe->pipe.device->address; 1794 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1795 1796 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1797 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1798 upipe->pipe.device->speed, flags)); 1799 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1800 if (maxp == 0) { 1801 printf("uhci_alloc_std_chain: maxp=0\n"); 1802 return (USBD_INVAL); 1803 } 1804 ntd = (len + maxp - 1) / maxp; 1805 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1806 ntd++; 1807 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1808 if (ntd == 0) { 1809 *sp = *ep = 0; 1810 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1811 return (USBD_NORMAL_COMPLETION); 1812 } 1813 tog = upipe->nexttoggle; 1814 if (ntd % 2 == 0) 1815 tog ^= 1; 1816 upipe->nexttoggle = tog ^ 1; 1817 lastp = NULL; 1818 lastlink = UHCI_PTR_T; 1819 ntd--; 1820 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1821 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1822 status |= UHCI_TD_LS; 1823 if (flags & USBD_SHORT_XFER_OK) 1824 status |= UHCI_TD_SPD; 1825 for (i = ntd; i >= 0; i--) { 1826 p = uhci_alloc_std(sc); 1827 if (p == NULL) { 1828 KASSERT(lastp != NULL); 1829 uhci_free_std_chain(sc, lastp, NULL); 1830 return (USBD_NOMEM); 1831 } 1832 p->link.std = lastp; 1833 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1834 lastp = p; 1835 lastlink = p->physaddr; 1836 p->td.td_status = htole32(status); 1837 if (i == ntd) { 1838 /* last TD */ 1839 l = len % maxp; 1840 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1841 l = maxp; 1842 *ep = p; 1843 } else 1844 l = maxp; 1845 p->td.td_token = 1846 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1847 UHCI_TD_OUT(l, endpt, addr, tog)); 1848 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1849 tog ^= 1; 1850 } 1851 *sp = lastp; 1852 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1853 upipe->nexttoggle)); 1854 return (USBD_NORMAL_COMPLETION); 1855 } 1856 1857 void 1858 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1859 { 1860 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1861 upipe->nexttoggle = 0; 1862 } 1863 1864 void 1865 uhci_noop(usbd_pipe_handle pipe) 1866 { 1867 } 1868 1869 usbd_status 1870 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1871 { 1872 usbd_status err; 1873 1874 /* Insert last in queue. */ 1875 err = usb_insert_transfer(xfer); 1876 if (err) 1877 return (err); 1878 1879 /* 1880 * Pipe isn't running (otherwise err would be USBD_INPROG), 1881 * so start it first. 1882 */ 1883 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1884 } 1885 1886 usbd_status 1887 uhci_device_bulk_start(usbd_xfer_handle xfer) 1888 { 1889 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1890 usbd_device_handle dev = upipe->pipe.device; 1891 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1892 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1893 uhci_soft_td_t *data, *dataend; 1894 uhci_soft_qh_t *sqh; 1895 usbd_status err; 1896 int len, isread, endpt; 1897 int s; 1898 1899 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1900 xfer, xfer->length, xfer->flags, ii)); 1901 1902 if (sc->sc_dying) 1903 return (USBD_IOERROR); 1904 1905 #ifdef DIAGNOSTIC 1906 if (xfer->rqflags & URQ_REQUEST) 1907 panic("uhci_device_bulk_transfer: a request"); 1908 #endif 1909 1910 len = xfer->length; 1911 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1912 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1913 sqh = upipe->u.bulk.sqh; 1914 1915 upipe->u.bulk.isread = isread; 1916 upipe->u.bulk.length = len; 1917 1918 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1919 &xfer->dmabuf, &data, &dataend); 1920 if (err) 1921 return (err); 1922 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1923 1924 #ifdef UHCI_DEBUG 1925 if (uhcidebug > 8) { 1926 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1927 uhci_dump_tds(data); 1928 } 1929 #endif 1930 1931 /* Set up interrupt info. */ 1932 ii->xfer = xfer; 1933 ii->stdstart = data; 1934 ii->stdend = dataend; 1935 #ifdef DIAGNOSTIC 1936 if (!ii->isdone) { 1937 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1938 } 1939 ii->isdone = 0; 1940 #endif 1941 1942 sqh->elink = data; 1943 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1944 1945 s = splusb(); 1946 uhci_add_bulk(sc, sqh); 1947 uhci_add_intr_info(sc, ii); 1948 1949 if (xfer->timeout && !sc->sc_bus.use_polling) { 1950 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1951 uhci_timeout, ii); 1952 } 1953 xfer->status = USBD_IN_PROGRESS; 1954 splx(s); 1955 1956 #ifdef UHCI_DEBUG 1957 if (uhcidebug > 10) { 1958 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1959 uhci_dump_tds(data); 1960 } 1961 #endif 1962 1963 if (sc->sc_bus.use_polling) 1964 uhci_waitintr(sc, xfer); 1965 1966 return (USBD_IN_PROGRESS); 1967 } 1968 1969 /* Abort a device bulk request. */ 1970 void 1971 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1972 { 1973 DPRINTF(("uhci_device_bulk_abort:\n")); 1974 uhci_abort_xfer(xfer, USBD_CANCELLED); 1975 } 1976 1977 /* 1978 * Abort a device request. 1979 * If this routine is called at splusb() it guarantees that the request 1980 * will be removed from the hardware scheduling and that the callback 1981 * for it will be called with USBD_CANCELLED status. 1982 * It's impossible to guarantee that the requested transfer will not 1983 * have happened since the hardware runs concurrently. 1984 * If the transaction has already happened we rely on the ordinary 1985 * interrupt processing to process it. 1986 */ 1987 void 1988 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1989 { 1990 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1991 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1992 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1993 uhci_soft_td_t *std; 1994 int s; 1995 int wake; 1996 1997 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1998 1999 if (sc->sc_dying) { 2000 /* If we're dying, just do the software part. */ 2001 s = splusb(); 2002 xfer->status = status; /* make software ignore it */ 2003 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 2004 usb_transfer_complete(xfer); 2005 splx(s); 2006 return; 2007 } 2008 2009 if (xfer->device->bus->intr_context || !curproc) 2010 panic("uhci_abort_xfer: not in process context"); 2011 2012 /* 2013 * If an abort is already in progress then just wait for it to 2014 * complete and return. 2015 */ 2016 if (xfer->hcflags & UXFER_ABORTING) { 2017 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 2018 #ifdef DIAGNOSTIC 2019 if (status == USBD_TIMEOUT) 2020 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 2021 #endif 2022 /* Override the status which might be USBD_TIMEOUT. */ 2023 xfer->status = status; 2024 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2025 xfer->hcflags |= UXFER_ABORTWAIT; 2026 while (xfer->hcflags & UXFER_ABORTING) 2027 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2028 return; 2029 } 2030 xfer->hcflags |= UXFER_ABORTING; 2031 2032 /* 2033 * Step 1: Make interrupt routine and hardware ignore xfer. 2034 */ 2035 s = splusb(); 2036 xfer->status = status; /* make software ignore it */ 2037 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2038 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2039 for (std = ii->stdstart; std != NULL; std = std->link.std) 2040 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2041 splx(s); 2042 2043 /* 2044 * Step 2: Wait until we know hardware has finished any possible 2045 * use of the xfer. Also make sure the soft interrupt routine 2046 * has run. 2047 */ 2048 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2049 s = splusb(); 2050 #ifdef USB_USE_SOFTINTR 2051 sc->sc_softwake = 1; 2052 #endif /* USB_USE_SOFTINTR */ 2053 usb_schedsoftintr(&sc->sc_bus); 2054 #ifdef USB_USE_SOFTINTR 2055 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2056 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2057 #endif /* USB_USE_SOFTINTR */ 2058 splx(s); 2059 2060 /* 2061 * Step 3: Execute callback. 2062 */ 2063 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2064 s = splusb(); 2065 #ifdef DIAGNOSTIC 2066 ii->isdone = 1; 2067 #endif 2068 wake = xfer->hcflags & UXFER_ABORTWAIT; 2069 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2070 usb_transfer_complete(xfer); 2071 if (wake) 2072 wakeup(&xfer->hcflags); 2073 splx(s); 2074 } 2075 2076 /* Close a device bulk pipe. */ 2077 void 2078 uhci_device_bulk_close(usbd_pipe_handle pipe) 2079 { 2080 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2081 usbd_device_handle dev = upipe->pipe.device; 2082 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2083 2084 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2085 } 2086 2087 usbd_status 2088 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2089 { 2090 usbd_status err; 2091 2092 /* Insert last in queue. */ 2093 err = usb_insert_transfer(xfer); 2094 if (err) 2095 return (err); 2096 2097 /* 2098 * Pipe isn't running (otherwise err would be USBD_INPROG), 2099 * so start it first. 2100 */ 2101 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2102 } 2103 2104 usbd_status 2105 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2106 { 2107 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2108 usbd_status err; 2109 2110 if (sc->sc_dying) 2111 return (USBD_IOERROR); 2112 2113 #ifdef DIAGNOSTIC 2114 if (!(xfer->rqflags & URQ_REQUEST)) 2115 panic("uhci_device_ctrl_transfer: not a request"); 2116 #endif 2117 2118 err = uhci_device_request(xfer); 2119 if (err) 2120 return (err); 2121 2122 if (sc->sc_bus.use_polling) 2123 uhci_waitintr(sc, xfer); 2124 return (USBD_IN_PROGRESS); 2125 } 2126 2127 usbd_status 2128 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2129 { 2130 usbd_status err; 2131 2132 /* Insert last in queue. */ 2133 err = usb_insert_transfer(xfer); 2134 if (err) 2135 return (err); 2136 2137 /* 2138 * Pipe isn't running (otherwise err would be USBD_INPROG), 2139 * so start it first. 2140 */ 2141 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2142 } 2143 2144 usbd_status 2145 uhci_device_intr_start(usbd_xfer_handle xfer) 2146 { 2147 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2148 usbd_device_handle dev = upipe->pipe.device; 2149 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2150 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2151 uhci_soft_td_t *data, *dataend; 2152 uhci_soft_qh_t *sqh; 2153 usbd_status err; 2154 int isread, endpt; 2155 int i, s; 2156 2157 if (sc->sc_dying) 2158 return (USBD_IOERROR); 2159 2160 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2161 xfer, xfer->length, xfer->flags)); 2162 2163 #ifdef DIAGNOSTIC 2164 if (xfer->rqflags & URQ_REQUEST) 2165 panic("uhci_device_intr_transfer: a request"); 2166 #endif 2167 2168 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2169 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2170 2171 upipe->u.intr.isread = isread; 2172 2173 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2174 xfer->flags, &xfer->dmabuf, &data, 2175 &dataend); 2176 if (err) 2177 return (err); 2178 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2179 2180 #ifdef UHCI_DEBUG 2181 if (uhcidebug > 10) { 2182 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2183 uhci_dump_tds(data); 2184 uhci_dump_qh(upipe->u.intr.qhs[0]); 2185 } 2186 #endif 2187 2188 s = splusb(); 2189 /* Set up interrupt info. */ 2190 ii->xfer = xfer; 2191 ii->stdstart = data; 2192 ii->stdend = dataend; 2193 #ifdef DIAGNOSTIC 2194 if (!ii->isdone) { 2195 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2196 } 2197 ii->isdone = 0; 2198 #endif 2199 2200 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2201 upipe->u.intr.qhs[0])); 2202 for (i = 0; i < upipe->u.intr.npoll; i++) { 2203 sqh = upipe->u.intr.qhs[i]; 2204 sqh->elink = data; 2205 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2206 } 2207 uhci_add_intr_info(sc, ii); 2208 xfer->status = USBD_IN_PROGRESS; 2209 splx(s); 2210 2211 #ifdef UHCI_DEBUG 2212 if (uhcidebug > 10) { 2213 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2214 uhci_dump_tds(data); 2215 uhci_dump_qh(upipe->u.intr.qhs[0]); 2216 } 2217 #endif 2218 2219 return (USBD_IN_PROGRESS); 2220 } 2221 2222 /* Abort a device control request. */ 2223 void 2224 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2225 { 2226 DPRINTF(("uhci_device_ctrl_abort:\n")); 2227 uhci_abort_xfer(xfer, USBD_CANCELLED); 2228 } 2229 2230 /* Close a device control pipe. */ 2231 void 2232 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2233 { 2234 } 2235 2236 /* Abort a device interrupt request. */ 2237 void 2238 uhci_device_intr_abort(usbd_xfer_handle xfer) 2239 { 2240 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2241 if (xfer->pipe->intrxfer == xfer) { 2242 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2243 xfer->pipe->intrxfer = NULL; 2244 } 2245 uhci_abort_xfer(xfer, USBD_CANCELLED); 2246 } 2247 2248 /* Close a device interrupt pipe. */ 2249 void 2250 uhci_device_intr_close(usbd_pipe_handle pipe) 2251 { 2252 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2253 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2254 int i, npoll; 2255 int s; 2256 2257 /* Unlink descriptors from controller data structures. */ 2258 npoll = upipe->u.intr.npoll; 2259 s = splusb(); 2260 for (i = 0; i < npoll; i++) 2261 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2262 splx(s); 2263 2264 /* 2265 * We now have to wait for any activity on the physical 2266 * descriptors to stop. 2267 */ 2268 usb_delay_ms(&sc->sc_bus, 2); 2269 2270 for(i = 0; i < npoll; i++) 2271 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2272 free(upipe->u.intr.qhs, M_USBHC); 2273 2274 /* XXX free other resources */ 2275 } 2276 2277 usbd_status 2278 uhci_device_request(usbd_xfer_handle xfer) 2279 { 2280 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2281 usb_device_request_t *req = &xfer->request; 2282 usbd_device_handle dev = upipe->pipe.device; 2283 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2284 int addr = dev->address; 2285 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2286 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2287 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2288 uhci_soft_qh_t *sqh; 2289 int len; 2290 u_int32_t ls; 2291 usbd_status err; 2292 int isread; 2293 int s; 2294 2295 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2296 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2297 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2298 UGETW(req->wIndex), UGETW(req->wLength), 2299 addr, endpt)); 2300 2301 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2302 isread = req->bmRequestType & UT_READ; 2303 len = UGETW(req->wLength); 2304 2305 setup = upipe->u.ctl.setup; 2306 stat = upipe->u.ctl.stat; 2307 sqh = upipe->u.ctl.sqh; 2308 2309 /* Set up data transaction */ 2310 if (len != 0) { 2311 upipe->nexttoggle = 1; 2312 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2313 &xfer->dmabuf, &data, &dataend); 2314 if (err) 2315 return (err); 2316 next = data; 2317 dataend->link.std = stat; 2318 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2319 } else { 2320 next = stat; 2321 } 2322 upipe->u.ctl.length = len; 2323 2324 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2325 2326 setup->link.std = next; 2327 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2328 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2329 UHCI_TD_ACTIVE); 2330 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2331 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2332 2333 stat->link.std = NULL; 2334 stat->td.td_link = htole32(UHCI_PTR_T); 2335 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2336 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2337 stat->td.td_token = 2338 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2339 UHCI_TD_IN (0, endpt, addr, 1)); 2340 stat->td.td_buffer = htole32(0); 2341 2342 #ifdef UHCI_DEBUG 2343 if (uhcidebug > 10) { 2344 DPRINTF(("uhci_device_request: before transfer\n")); 2345 uhci_dump_tds(setup); 2346 } 2347 #endif 2348 2349 /* Set up interrupt info. */ 2350 ii->xfer = xfer; 2351 ii->stdstart = setup; 2352 ii->stdend = stat; 2353 #ifdef DIAGNOSTIC 2354 if (!ii->isdone) { 2355 printf("uhci_device_request: not done, ii=%p\n", ii); 2356 } 2357 ii->isdone = 0; 2358 #endif 2359 2360 sqh->elink = setup; 2361 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2362 2363 s = splusb(); 2364 if (dev->speed == USB_SPEED_LOW) 2365 uhci_add_ls_ctrl(sc, sqh); 2366 else 2367 uhci_add_hs_ctrl(sc, sqh); 2368 uhci_add_intr_info(sc, ii); 2369 #ifdef UHCI_DEBUG 2370 if (uhcidebug > 12) { 2371 uhci_soft_td_t *std; 2372 uhci_soft_qh_t *xqh; 2373 uhci_soft_qh_t *sxqh; 2374 int maxqh = 0; 2375 uhci_physaddr_t link; 2376 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2377 for (std = sc->sc_vframes[0].htd, link = 0; 2378 (link & UHCI_PTR_QH) == 0; 2379 std = std->link.std) { 2380 link = le32toh(std->td.td_link); 2381 uhci_dump_td(std); 2382 } 2383 sxqh = (uhci_soft_qh_t *)std; 2384 uhci_dump_qh(sxqh); 2385 for (xqh = sxqh; 2386 xqh != NULL; 2387 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2388 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2389 uhci_dump_qh(xqh); 2390 } 2391 DPRINTF(("Enqueued QH:\n")); 2392 uhci_dump_qh(sqh); 2393 uhci_dump_tds(sqh->elink); 2394 } 2395 #endif 2396 if (xfer->timeout && !sc->sc_bus.use_polling) { 2397 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2398 uhci_timeout, ii); 2399 } 2400 xfer->status = USBD_IN_PROGRESS; 2401 splx(s); 2402 2403 return (USBD_NORMAL_COMPLETION); 2404 } 2405 2406 usbd_status 2407 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2408 { 2409 usbd_status err; 2410 2411 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2412 2413 /* Put it on our queue, */ 2414 err = usb_insert_transfer(xfer); 2415 2416 /* bail out on error, */ 2417 if (err && err != USBD_IN_PROGRESS) 2418 return (err); 2419 2420 /* XXX should check inuse here */ 2421 2422 /* insert into schedule, */ 2423 uhci_device_isoc_enter(xfer); 2424 2425 /* and start if the pipe wasn't running */ 2426 if (!err) 2427 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2428 2429 return (err); 2430 } 2431 2432 void 2433 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2434 { 2435 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2436 usbd_device_handle dev = upipe->pipe.device; 2437 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2438 struct iso *iso = &upipe->u.iso; 2439 uhci_soft_td_t *std; 2440 u_int32_t buf, len, status; 2441 int s, i, next, nframes; 2442 2443 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2444 "nframes=%d\n", 2445 iso->inuse, iso->next, xfer, xfer->nframes)); 2446 2447 if (sc->sc_dying) 2448 return; 2449 2450 if (xfer->status == USBD_IN_PROGRESS) { 2451 /* This request has already been entered into the frame list */ 2452 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2453 /* XXX */ 2454 } 2455 2456 #ifdef DIAGNOSTIC 2457 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2458 printf("uhci_device_isoc_enter: overflow!\n"); 2459 #endif 2460 2461 next = iso->next; 2462 if (next == -1) { 2463 /* Not in use yet, schedule it a few frames ahead. */ 2464 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2465 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2466 } 2467 2468 xfer->status = USBD_IN_PROGRESS; 2469 UXFER(xfer)->curframe = next; 2470 2471 buf = DMAADDR(&xfer->dmabuf, 0); 2472 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2473 UHCI_TD_ACTIVE | 2474 UHCI_TD_IOS); 2475 nframes = xfer->nframes; 2476 s = splusb(); 2477 for (i = 0; i < nframes; i++) { 2478 std = iso->stds[next]; 2479 if (++next >= UHCI_VFRAMELIST_COUNT) 2480 next = 0; 2481 len = xfer->frlengths[i]; 2482 std->td.td_buffer = htole32(buf); 2483 if (i == nframes - 1) 2484 status |= UHCI_TD_IOC; 2485 std->td.td_status = htole32(status); 2486 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2487 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2488 #ifdef UHCI_DEBUG 2489 if (uhcidebug > 5) { 2490 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2491 uhci_dump_td(std); 2492 } 2493 #endif 2494 buf += len; 2495 } 2496 iso->next = next; 2497 iso->inuse += xfer->nframes; 2498 2499 splx(s); 2500 } 2501 2502 usbd_status 2503 uhci_device_isoc_start(usbd_xfer_handle xfer) 2504 { 2505 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2506 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2507 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2508 uhci_soft_td_t *end; 2509 int s, i; 2510 2511 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2512 2513 if (sc->sc_dying) 2514 return (USBD_IOERROR); 2515 2516 #ifdef DIAGNOSTIC 2517 if (xfer->status != USBD_IN_PROGRESS) 2518 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2519 #endif 2520 2521 /* Find the last TD */ 2522 i = UXFER(xfer)->curframe + xfer->nframes; 2523 if (i >= UHCI_VFRAMELIST_COUNT) 2524 i -= UHCI_VFRAMELIST_COUNT; 2525 end = upipe->u.iso.stds[i]; 2526 2527 #ifdef DIAGNOSTIC 2528 if (end == NULL) { 2529 printf("uhci_device_isoc_start: end == NULL\n"); 2530 return (USBD_INVAL); 2531 } 2532 #endif 2533 2534 s = splusb(); 2535 2536 /* Set up interrupt info. */ 2537 ii->xfer = xfer; 2538 ii->stdstart = end; 2539 ii->stdend = end; 2540 #ifdef DIAGNOSTIC 2541 if (!ii->isdone) 2542 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2543 ii->isdone = 0; 2544 #endif 2545 uhci_add_intr_info(sc, ii); 2546 2547 splx(s); 2548 2549 return (USBD_IN_PROGRESS); 2550 } 2551 2552 void 2553 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2554 { 2555 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2556 uhci_soft_td_t **stds = upipe->u.iso.stds; 2557 uhci_soft_td_t *std; 2558 int i, n, s, nframes, maxlen, len; 2559 2560 s = splusb(); 2561 2562 /* Transfer is already done. */ 2563 if (xfer->status != USBD_NOT_STARTED && 2564 xfer->status != USBD_IN_PROGRESS) { 2565 splx(s); 2566 return; 2567 } 2568 2569 /* Give xfer the requested abort code. */ 2570 xfer->status = USBD_CANCELLED; 2571 2572 /* make hardware ignore it, */ 2573 nframes = xfer->nframes; 2574 n = UXFER(xfer)->curframe; 2575 maxlen = 0; 2576 for (i = 0; i < nframes; i++) { 2577 std = stds[n]; 2578 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2579 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2580 if (len > maxlen) 2581 maxlen = len; 2582 if (++n >= UHCI_VFRAMELIST_COUNT) 2583 n = 0; 2584 } 2585 2586 /* and wait until we are sure the hardware has finished. */ 2587 delay(maxlen); 2588 2589 #ifdef DIAGNOSTIC 2590 UXFER(xfer)->iinfo.isdone = 1; 2591 #endif 2592 /* Run callback and remove from interrupt list. */ 2593 usb_transfer_complete(xfer); 2594 2595 splx(s); 2596 } 2597 2598 void 2599 uhci_device_isoc_close(usbd_pipe_handle pipe) 2600 { 2601 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2602 usbd_device_handle dev = upipe->pipe.device; 2603 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2604 uhci_soft_td_t *std, *vstd; 2605 struct iso *iso; 2606 int i, s; 2607 2608 /* 2609 * Make sure all TDs are marked as inactive. 2610 * Wait for completion. 2611 * Unschedule. 2612 * Deallocate. 2613 */ 2614 iso = &upipe->u.iso; 2615 2616 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2617 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2618 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2619 2620 s = splusb(); 2621 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2622 std = iso->stds[i]; 2623 for (vstd = sc->sc_vframes[i].htd; 2624 vstd != NULL && vstd->link.std != std; 2625 vstd = vstd->link.std) 2626 ; 2627 if (vstd == NULL) { 2628 /*panic*/ 2629 printf("uhci_device_isoc_close: %p not found\n", std); 2630 splx(s); 2631 return; 2632 } 2633 vstd->link = std->link; 2634 vstd->td.td_link = std->td.td_link; 2635 uhci_free_std(sc, std); 2636 } 2637 splx(s); 2638 2639 free(iso->stds, M_USBHC); 2640 } 2641 2642 usbd_status 2643 uhci_setup_isoc(usbd_pipe_handle pipe) 2644 { 2645 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2646 usbd_device_handle dev = upipe->pipe.device; 2647 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2648 int addr = upipe->pipe.device->address; 2649 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2650 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2651 uhci_soft_td_t *std, *vstd; 2652 u_int32_t token; 2653 struct iso *iso; 2654 int i, s; 2655 2656 iso = &upipe->u.iso; 2657 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2658 M_USBHC, M_WAITOK); 2659 2660 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2661 UHCI_TD_OUT(0, endpt, addr, 0); 2662 2663 /* Allocate the TDs and mark as inactive; */ 2664 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2665 std = uhci_alloc_std(sc); 2666 if (std == 0) 2667 goto bad; 2668 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2669 std->td.td_token = htole32(token); 2670 iso->stds[i] = std; 2671 } 2672 2673 /* Insert TDs into schedule. */ 2674 s = splusb(); 2675 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2676 std = iso->stds[i]; 2677 vstd = sc->sc_vframes[i].htd; 2678 std->link = vstd->link; 2679 std->td.td_link = vstd->td.td_link; 2680 vstd->link.std = std; 2681 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2682 } 2683 splx(s); 2684 2685 iso->next = -1; 2686 iso->inuse = 0; 2687 2688 return (USBD_NORMAL_COMPLETION); 2689 2690 bad: 2691 while (--i >= 0) 2692 uhci_free_std(sc, iso->stds[i]); 2693 free(iso->stds, M_USBHC); 2694 return (USBD_NOMEM); 2695 } 2696 2697 void 2698 uhci_device_isoc_done(usbd_xfer_handle xfer) 2699 { 2700 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2701 2702 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2703 xfer->actlen, xfer->busy_free)); 2704 2705 if (ii->xfer != xfer) 2706 /* Not on interrupt list, ignore it. */ 2707 return; 2708 2709 if (!uhci_active_intr_info(ii)) 2710 return; 2711 2712 #ifdef DIAGNOSTIC 2713 if (ii->stdend == NULL) { 2714 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2715 #ifdef UHCI_DEBUG 2716 uhci_dump_ii(ii); 2717 #endif 2718 return; 2719 } 2720 #endif 2721 2722 /* Turn off the interrupt since it is active even if the TD is not. */ 2723 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2724 2725 uhci_del_intr_info(ii); /* remove from active list */ 2726 } 2727 2728 void 2729 uhci_device_intr_done(usbd_xfer_handle xfer) 2730 { 2731 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2732 uhci_softc_t *sc = ii->sc; 2733 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2734 uhci_soft_qh_t *sqh; 2735 int i, npoll; 2736 2737 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2738 2739 npoll = upipe->u.intr.npoll; 2740 for(i = 0; i < npoll; i++) { 2741 sqh = upipe->u.intr.qhs[i]; 2742 sqh->elink = NULL; 2743 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2744 } 2745 uhci_free_std_chain(sc, ii->stdstart, NULL); 2746 2747 /* XXX Wasteful. */ 2748 if (xfer->pipe->repeat) { 2749 uhci_soft_td_t *data, *dataend; 2750 2751 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2752 2753 /* This alloc cannot fail since we freed the chain above. */ 2754 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2755 &xfer->dmabuf, &data, &dataend); 2756 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2757 2758 #ifdef UHCI_DEBUG 2759 if (uhcidebug > 10) { 2760 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2761 uhci_dump_tds(data); 2762 uhci_dump_qh(upipe->u.intr.qhs[0]); 2763 } 2764 #endif 2765 2766 ii->stdstart = data; 2767 ii->stdend = dataend; 2768 #ifdef DIAGNOSTIC 2769 if (!ii->isdone) { 2770 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2771 } 2772 ii->isdone = 0; 2773 #endif 2774 for (i = 0; i < npoll; i++) { 2775 sqh = upipe->u.intr.qhs[i]; 2776 sqh->elink = data; 2777 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2778 } 2779 xfer->status = USBD_IN_PROGRESS; 2780 /* The ii is already on the examined list, just leave it. */ 2781 } else { 2782 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2783 if (uhci_active_intr_info(ii)) 2784 uhci_del_intr_info(ii); 2785 } 2786 } 2787 2788 /* Deallocate request data structures */ 2789 void 2790 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2791 { 2792 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2793 uhci_softc_t *sc = ii->sc; 2794 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2795 2796 #ifdef DIAGNOSTIC 2797 if (!(xfer->rqflags & URQ_REQUEST)) 2798 panic("uhci_device_ctrl_done: not a request"); 2799 #endif 2800 2801 if (!uhci_active_intr_info(ii)) 2802 return; 2803 2804 uhci_del_intr_info(ii); /* remove from active list */ 2805 2806 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2807 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2808 else 2809 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2810 2811 if (upipe->u.ctl.length != 0) 2812 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2813 2814 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2815 } 2816 2817 /* Deallocate request data structures */ 2818 void 2819 uhci_device_bulk_done(usbd_xfer_handle xfer) 2820 { 2821 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2822 uhci_softc_t *sc = ii->sc; 2823 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2824 2825 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2826 xfer, ii, sc, upipe)); 2827 2828 if (!uhci_active_intr_info(ii)) 2829 return; 2830 2831 uhci_del_intr_info(ii); /* remove from active list */ 2832 2833 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2834 2835 uhci_free_std_chain(sc, ii->stdstart, NULL); 2836 2837 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2838 } 2839 2840 /* Add interrupt QH, called with vflock. */ 2841 void 2842 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2843 { 2844 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2845 uhci_soft_qh_t *eqh; 2846 2847 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2848 2849 eqh = vf->eqh; 2850 sqh->hlink = eqh->hlink; 2851 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2852 eqh->hlink = sqh; 2853 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2854 vf->eqh = sqh; 2855 vf->bandwidth++; 2856 } 2857 2858 /* Remove interrupt QH. */ 2859 void 2860 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2861 { 2862 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2863 uhci_soft_qh_t *pqh; 2864 2865 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2866 2867 /* See comment in uhci_remove_ctrl() */ 2868 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2869 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2870 delay(UHCI_QH_REMOVE_DELAY); 2871 } 2872 2873 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2874 pqh->hlink = sqh->hlink; 2875 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2876 delay(UHCI_QH_REMOVE_DELAY); 2877 if (vf->eqh == sqh) 2878 vf->eqh = pqh; 2879 vf->bandwidth--; 2880 } 2881 2882 usbd_status 2883 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2884 { 2885 uhci_soft_qh_t *sqh; 2886 int i, npoll, s; 2887 u_int bestbw, bw, bestoffs, offs; 2888 2889 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2890 if (ival == 0) { 2891 printf("uhci_device_setintr: 0 interval\n"); 2892 return (USBD_INVAL); 2893 } 2894 2895 if (ival > UHCI_VFRAMELIST_COUNT) 2896 ival = UHCI_VFRAMELIST_COUNT; 2897 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2898 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2899 2900 upipe->u.intr.npoll = npoll; 2901 upipe->u.intr.qhs = 2902 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2903 2904 /* 2905 * Figure out which offset in the schedule that has most 2906 * bandwidth left over. 2907 */ 2908 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2909 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2910 for (bw = i = 0; i < npoll; i++) 2911 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2912 if (bw < bestbw) { 2913 bestbw = bw; 2914 bestoffs = offs; 2915 } 2916 } 2917 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2918 2919 for(i = 0; i < npoll; i++) { 2920 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2921 sqh->elink = NULL; 2922 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2923 sqh->pos = MOD(i * ival + bestoffs); 2924 } 2925 #undef MOD 2926 2927 s = splusb(); 2928 /* Enter QHs into the controller data structures. */ 2929 for(i = 0; i < npoll; i++) 2930 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2931 splx(s); 2932 2933 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2934 return (USBD_NORMAL_COMPLETION); 2935 } 2936 2937 /* Open a new pipe. */ 2938 usbd_status 2939 uhci_open(usbd_pipe_handle pipe) 2940 { 2941 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2942 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2943 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2944 usbd_status err; 2945 int ival; 2946 2947 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2948 pipe, pipe->device->address, 2949 ed->bEndpointAddress, sc->sc_addr)); 2950 2951 upipe->aborting = 0; 2952 upipe->nexttoggle = 0; 2953 2954 if (pipe->device->address == sc->sc_addr) { 2955 switch (ed->bEndpointAddress) { 2956 case USB_CONTROL_ENDPOINT: 2957 pipe->methods = &uhci_root_ctrl_methods; 2958 break; 2959 case UE_DIR_IN | UHCI_INTR_ENDPT: 2960 pipe->methods = &uhci_root_intr_methods; 2961 break; 2962 default: 2963 return (USBD_INVAL); 2964 } 2965 } else { 2966 switch (ed->bmAttributes & UE_XFERTYPE) { 2967 case UE_CONTROL: 2968 pipe->methods = &uhci_device_ctrl_methods; 2969 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2970 if (upipe->u.ctl.sqh == NULL) 2971 goto bad; 2972 upipe->u.ctl.setup = uhci_alloc_std(sc); 2973 if (upipe->u.ctl.setup == NULL) { 2974 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2975 goto bad; 2976 } 2977 upipe->u.ctl.stat = uhci_alloc_std(sc); 2978 if (upipe->u.ctl.stat == NULL) { 2979 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2980 uhci_free_std(sc, upipe->u.ctl.setup); 2981 goto bad; 2982 } 2983 err = usb_allocmem(&sc->sc_bus, 2984 sizeof(usb_device_request_t), 2985 0, &upipe->u.ctl.reqdma); 2986 if (err) { 2987 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2988 uhci_free_std(sc, upipe->u.ctl.setup); 2989 uhci_free_std(sc, upipe->u.ctl.stat); 2990 goto bad; 2991 } 2992 break; 2993 case UE_INTERRUPT: 2994 pipe->methods = &uhci_device_intr_methods; 2995 ival = pipe->interval; 2996 if (ival == USBD_DEFAULT_INTERVAL) 2997 ival = ed->bInterval; 2998 return (uhci_device_setintr(sc, upipe, ival)); 2999 case UE_ISOCHRONOUS: 3000 pipe->methods = &uhci_device_isoc_methods; 3001 return (uhci_setup_isoc(pipe)); 3002 case UE_BULK: 3003 pipe->methods = &uhci_device_bulk_methods; 3004 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 3005 if (upipe->u.bulk.sqh == NULL) 3006 goto bad; 3007 break; 3008 } 3009 } 3010 return (USBD_NORMAL_COMPLETION); 3011 3012 bad: 3013 return (USBD_NOMEM); 3014 } 3015 3016 /* 3017 * Data structures and routines to emulate the root hub. 3018 */ 3019 usb_device_descriptor_t uhci_devd = { 3020 USB_DEVICE_DESCRIPTOR_SIZE, 3021 UDESC_DEVICE, /* type */ 3022 {0x00, 0x01}, /* USB version */ 3023 UDCLASS_HUB, /* class */ 3024 UDSUBCLASS_HUB, /* subclass */ 3025 UDPROTO_FSHUB, /* protocol */ 3026 64, /* max packet */ 3027 {0},{0},{0x00,0x01}, /* device id */ 3028 1,2,0, /* string indicies */ 3029 1 /* # of configurations */ 3030 }; 3031 3032 const usb_config_descriptor_t uhci_confd = { 3033 USB_CONFIG_DESCRIPTOR_SIZE, 3034 UDESC_CONFIG, 3035 {USB_CONFIG_DESCRIPTOR_SIZE + 3036 USB_INTERFACE_DESCRIPTOR_SIZE + 3037 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3038 1, 3039 1, 3040 0, 3041 UC_ATTR_MBO | UC_SELF_POWERED, 3042 0 /* max power */ 3043 }; 3044 3045 const usb_interface_descriptor_t uhci_ifcd = { 3046 USB_INTERFACE_DESCRIPTOR_SIZE, 3047 UDESC_INTERFACE, 3048 0, 3049 0, 3050 1, 3051 UICLASS_HUB, 3052 UISUBCLASS_HUB, 3053 UIPROTO_FSHUB, 3054 0 3055 }; 3056 3057 const usb_endpoint_descriptor_t uhci_endpd = { 3058 USB_ENDPOINT_DESCRIPTOR_SIZE, 3059 UDESC_ENDPOINT, 3060 UE_DIR_IN | UHCI_INTR_ENDPT, 3061 UE_INTERRUPT, 3062 {8}, 3063 255 3064 }; 3065 3066 const usb_hub_descriptor_t uhci_hubd_piix = { 3067 USB_HUB_DESCRIPTOR_SIZE, 3068 UDESC_HUB, 3069 2, 3070 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3071 50, /* power on to power good */ 3072 0, 3073 { 0x00 }, /* both ports are removable */ 3074 { 0 }, 3075 }; 3076 3077 /* 3078 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3079 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3080 * should not be used by the USB subsystem. As we cannot issue a 3081 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3082 * will be enabled as part of the reset. 3083 * 3084 * On the VT83C572, the port cannot be successfully enabled until the 3085 * outstanding "port enable change" and "connection status change" 3086 * events have been reset. 3087 */ 3088 Static usbd_status 3089 uhci_portreset(uhci_softc_t *sc, int index) 3090 { 3091 int lim, port, x; 3092 3093 if (index == 1) 3094 port = UHCI_PORTSC1; 3095 else if (index == 2) 3096 port = UHCI_PORTSC2; 3097 else 3098 return (USBD_IOERROR); 3099 3100 x = URWMASK(UREAD2(sc, port)); 3101 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3102 3103 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3104 3105 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3106 index, UREAD2(sc, port))); 3107 3108 x = URWMASK(UREAD2(sc, port)); 3109 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3110 3111 delay(100); 3112 3113 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3114 index, UREAD2(sc, port))); 3115 3116 x = URWMASK(UREAD2(sc, port)); 3117 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3118 3119 for (lim = 10; --lim > 0;) { 3120 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3121 3122 x = UREAD2(sc, port); 3123 3124 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3125 index, lim, x)); 3126 3127 if (!(x & UHCI_PORTSC_CCS)) { 3128 /* 3129 * No device is connected (or was disconnected 3130 * during reset). Consider the port reset. 3131 * The delay must be long enough to ensure on 3132 * the initial iteration that the device 3133 * connection will have been registered. 50ms 3134 * appears to be sufficient, but 20ms is not. 3135 */ 3136 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3137 index, lim)); 3138 break; 3139 } 3140 3141 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3142 /* 3143 * Port enabled changed and/or connection 3144 * status changed were set. Reset either or 3145 * both raised flags (by writing a 1 to that 3146 * bit), and wait again for state to settle. 3147 */ 3148 UWRITE2(sc, port, URWMASK(x) | 3149 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3150 continue; 3151 } 3152 3153 if (x & UHCI_PORTSC_PE) 3154 /* Port is enabled */ 3155 break; 3156 3157 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3158 } 3159 3160 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3161 index, UREAD2(sc, port))); 3162 3163 if (lim <= 0) { 3164 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3165 return (USBD_TIMEOUT); 3166 } 3167 3168 sc->sc_isreset = 1; 3169 return (USBD_NORMAL_COMPLETION); 3170 } 3171 3172 /* 3173 * Simulate a hardware hub by handling all the necessary requests. 3174 */ 3175 usbd_status 3176 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3177 { 3178 usbd_status err; 3179 3180 /* Insert last in queue. */ 3181 err = usb_insert_transfer(xfer); 3182 if (err) 3183 return (err); 3184 3185 /* 3186 * Pipe isn't running (otherwise err would be USBD_INPROG), 3187 * so start it first. 3188 */ 3189 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3190 } 3191 3192 usbd_status 3193 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3194 { 3195 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3196 usb_device_request_t *req; 3197 void *buf = NULL; 3198 int port, x; 3199 int s, len, value, index, status, change, l, totlen = 0; 3200 usb_port_status_t ps; 3201 usbd_status err; 3202 3203 if (sc->sc_dying) 3204 return (USBD_IOERROR); 3205 3206 #ifdef DIAGNOSTIC 3207 if (!(xfer->rqflags & URQ_REQUEST)) 3208 panic("uhci_root_ctrl_transfer: not a request"); 3209 #endif 3210 req = &xfer->request; 3211 3212 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3213 req->bmRequestType, req->bRequest)); 3214 3215 len = UGETW(req->wLength); 3216 value = UGETW(req->wValue); 3217 index = UGETW(req->wIndex); 3218 3219 if (len != 0) 3220 buf = KERNADDR(&xfer->dmabuf, 0); 3221 3222 #define C(x,y) ((x) | ((y) << 8)) 3223 switch(C(req->bRequest, req->bmRequestType)) { 3224 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3225 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3226 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3227 /* 3228 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3229 * for the integrated root hub. 3230 */ 3231 break; 3232 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3233 if (len > 0) { 3234 *(u_int8_t *)buf = sc->sc_conf; 3235 totlen = 1; 3236 } 3237 break; 3238 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3239 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3240 if (len == 0) 3241 break; 3242 switch(value >> 8) { 3243 case UDESC_DEVICE: 3244 if ((value & 0xff) != 0) { 3245 err = USBD_IOERROR; 3246 goto ret; 3247 } 3248 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3249 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3250 memcpy(buf, &uhci_devd, l); 3251 break; 3252 case UDESC_CONFIG: 3253 if ((value & 0xff) != 0) { 3254 err = USBD_IOERROR; 3255 goto ret; 3256 } 3257 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3258 memcpy(buf, &uhci_confd, l); 3259 buf = (char *)buf + l; 3260 len -= l; 3261 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3262 totlen += l; 3263 memcpy(buf, &uhci_ifcd, l); 3264 buf = (char *)buf + l; 3265 len -= l; 3266 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3267 totlen += l; 3268 memcpy(buf, &uhci_endpd, l); 3269 break; 3270 case UDESC_STRING: 3271 #define sd ((usb_string_descriptor_t *)buf) 3272 switch (value & 0xff) { 3273 case 0: /* Language table */ 3274 totlen = usb_makelangtbl(sd, len); 3275 break; 3276 case 1: /* Vendor */ 3277 totlen = usb_makestrdesc(sd, len, 3278 sc->sc_vendor); 3279 break; 3280 case 2: /* Product */ 3281 totlen = usb_makestrdesc(sd, len, 3282 "UHCI root hub"); 3283 break; 3284 } 3285 #undef sd 3286 break; 3287 default: 3288 err = USBD_IOERROR; 3289 goto ret; 3290 } 3291 break; 3292 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3293 if (len > 0) { 3294 *(u_int8_t *)buf = 0; 3295 totlen = 1; 3296 } 3297 break; 3298 case C(UR_GET_STATUS, UT_READ_DEVICE): 3299 if (len > 1) { 3300 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3301 totlen = 2; 3302 } 3303 break; 3304 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3305 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3306 if (len > 1) { 3307 USETW(((usb_status_t *)buf)->wStatus, 0); 3308 totlen = 2; 3309 } 3310 break; 3311 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3312 if (value >= USB_MAX_DEVICES) { 3313 err = USBD_IOERROR; 3314 goto ret; 3315 } 3316 sc->sc_addr = value; 3317 break; 3318 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3319 if (value != 0 && value != 1) { 3320 err = USBD_IOERROR; 3321 goto ret; 3322 } 3323 sc->sc_conf = value; 3324 break; 3325 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3326 break; 3327 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3328 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3329 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3330 err = USBD_IOERROR; 3331 goto ret; 3332 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3333 break; 3334 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3335 break; 3336 /* Hub requests */ 3337 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3338 break; 3339 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3340 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3341 "port=%d feature=%d\n", 3342 index, value)); 3343 if (index == 1) 3344 port = UHCI_PORTSC1; 3345 else if (index == 2) 3346 port = UHCI_PORTSC2; 3347 else { 3348 err = USBD_IOERROR; 3349 goto ret; 3350 } 3351 switch(value) { 3352 case UHF_PORT_ENABLE: 3353 x = URWMASK(UREAD2(sc, port)); 3354 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3355 break; 3356 case UHF_PORT_SUSPEND: 3357 x = URWMASK(UREAD2(sc, port)); 3358 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3359 break; 3360 case UHF_PORT_RESET: 3361 x = URWMASK(UREAD2(sc, port)); 3362 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3363 break; 3364 case UHF_C_PORT_CONNECTION: 3365 x = URWMASK(UREAD2(sc, port)); 3366 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3367 break; 3368 case UHF_C_PORT_ENABLE: 3369 x = URWMASK(UREAD2(sc, port)); 3370 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3371 break; 3372 case UHF_C_PORT_OVER_CURRENT: 3373 x = URWMASK(UREAD2(sc, port)); 3374 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3375 break; 3376 case UHF_C_PORT_RESET: 3377 sc->sc_isreset = 0; 3378 err = USBD_NORMAL_COMPLETION; 3379 goto ret; 3380 case UHF_PORT_CONNECTION: 3381 case UHF_PORT_OVER_CURRENT: 3382 case UHF_PORT_POWER: 3383 case UHF_PORT_LOW_SPEED: 3384 case UHF_C_PORT_SUSPEND: 3385 default: 3386 err = USBD_IOERROR; 3387 goto ret; 3388 } 3389 break; 3390 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3391 if (index == 1) 3392 port = UHCI_PORTSC1; 3393 else if (index == 2) 3394 port = UHCI_PORTSC2; 3395 else { 3396 err = USBD_IOERROR; 3397 goto ret; 3398 } 3399 if (len > 0) { 3400 *(u_int8_t *)buf = 3401 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3402 UHCI_PORTSC_LS_SHIFT; 3403 totlen = 1; 3404 } 3405 break; 3406 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3407 if (len == 0) 3408 break; 3409 if ((value & 0xff) != 0) { 3410 err = USBD_IOERROR; 3411 goto ret; 3412 } 3413 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3414 totlen = l; 3415 memcpy(buf, &uhci_hubd_piix, l); 3416 break; 3417 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3418 if (len != 4) { 3419 err = USBD_IOERROR; 3420 goto ret; 3421 } 3422 memset(buf, 0, len); 3423 totlen = len; 3424 break; 3425 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3426 if (index == 1) 3427 port = UHCI_PORTSC1; 3428 else if (index == 2) 3429 port = UHCI_PORTSC2; 3430 else { 3431 err = USBD_IOERROR; 3432 goto ret; 3433 } 3434 if (len != 4) { 3435 err = USBD_IOERROR; 3436 goto ret; 3437 } 3438 x = UREAD2(sc, port); 3439 status = change = 0; 3440 if (x & UHCI_PORTSC_CCS) 3441 status |= UPS_CURRENT_CONNECT_STATUS; 3442 if (x & UHCI_PORTSC_CSC) 3443 change |= UPS_C_CONNECT_STATUS; 3444 if (x & UHCI_PORTSC_PE) 3445 status |= UPS_PORT_ENABLED; 3446 if (x & UHCI_PORTSC_POEDC) 3447 change |= UPS_C_PORT_ENABLED; 3448 if (x & UHCI_PORTSC_OCI) 3449 status |= UPS_OVERCURRENT_INDICATOR; 3450 if (x & UHCI_PORTSC_OCIC) 3451 change |= UPS_C_OVERCURRENT_INDICATOR; 3452 if (x & UHCI_PORTSC_SUSP) 3453 status |= UPS_SUSPEND; 3454 if (x & UHCI_PORTSC_LSDA) 3455 status |= UPS_LOW_SPEED; 3456 status |= UPS_PORT_POWER; 3457 if (sc->sc_isreset) 3458 change |= UPS_C_PORT_RESET; 3459 USETW(ps.wPortStatus, status); 3460 USETW(ps.wPortChange, change); 3461 l = min(len, sizeof ps); 3462 memcpy(buf, &ps, l); 3463 totlen = l; 3464 break; 3465 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3466 err = USBD_IOERROR; 3467 goto ret; 3468 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3469 break; 3470 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3471 if (index == 1) 3472 port = UHCI_PORTSC1; 3473 else if (index == 2) 3474 port = UHCI_PORTSC2; 3475 else { 3476 err = USBD_IOERROR; 3477 goto ret; 3478 } 3479 switch(value) { 3480 case UHF_PORT_ENABLE: 3481 x = URWMASK(UREAD2(sc, port)); 3482 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3483 break; 3484 case UHF_PORT_SUSPEND: 3485 x = URWMASK(UREAD2(sc, port)); 3486 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3487 break; 3488 case UHF_PORT_RESET: 3489 err = uhci_portreset(sc, index); 3490 goto ret; 3491 case UHF_PORT_POWER: 3492 /* Pretend we turned on power */ 3493 err = USBD_NORMAL_COMPLETION; 3494 goto ret; 3495 case UHF_C_PORT_CONNECTION: 3496 case UHF_C_PORT_ENABLE: 3497 case UHF_C_PORT_OVER_CURRENT: 3498 case UHF_PORT_CONNECTION: 3499 case UHF_PORT_OVER_CURRENT: 3500 case UHF_PORT_LOW_SPEED: 3501 case UHF_C_PORT_SUSPEND: 3502 case UHF_C_PORT_RESET: 3503 default: 3504 err = USBD_IOERROR; 3505 goto ret; 3506 } 3507 break; 3508 default: 3509 err = USBD_IOERROR; 3510 goto ret; 3511 } 3512 xfer->actlen = totlen; 3513 err = USBD_NORMAL_COMPLETION; 3514 ret: 3515 xfer->status = err; 3516 s = splusb(); 3517 usb_transfer_complete(xfer); 3518 splx(s); 3519 return (USBD_IN_PROGRESS); 3520 } 3521 3522 /* Abort a root control request. */ 3523 void 3524 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3525 { 3526 /* Nothing to do, all transfers are synchronous. */ 3527 } 3528 3529 /* Close the root pipe. */ 3530 void 3531 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3532 { 3533 DPRINTF(("uhci_root_ctrl_close\n")); 3534 } 3535 3536 /* Abort a root interrupt request. */ 3537 void 3538 uhci_root_intr_abort(usbd_xfer_handle xfer) 3539 { 3540 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3541 3542 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3543 sc->sc_intr_xfer = NULL; 3544 3545 if (xfer->pipe->intrxfer == xfer) { 3546 DPRINTF(("uhci_root_intr_abort: remove\n")); 3547 xfer->pipe->intrxfer = 0; 3548 } 3549 xfer->status = USBD_CANCELLED; 3550 #ifdef DIAGNOSTIC 3551 UXFER(xfer)->iinfo.isdone = 1; 3552 #endif 3553 usb_transfer_complete(xfer); 3554 } 3555 3556 usbd_status 3557 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3558 { 3559 usbd_status err; 3560 3561 /* Insert last in queue. */ 3562 err = usb_insert_transfer(xfer); 3563 if (err) 3564 return (err); 3565 3566 /* 3567 * Pipe isn't running (otherwise err would be USBD_INPROG), 3568 * start first 3569 */ 3570 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3571 } 3572 3573 /* Start a transfer on the root interrupt pipe */ 3574 usbd_status 3575 uhci_root_intr_start(usbd_xfer_handle xfer) 3576 { 3577 usbd_pipe_handle pipe = xfer->pipe; 3578 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3579 unsigned int ival; 3580 3581 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3582 xfer, xfer->length, xfer->flags)); 3583 3584 if (sc->sc_dying) 3585 return (USBD_IOERROR); 3586 3587 /* XXX temporary variable needed to avoid gcc3 warning */ 3588 ival = xfer->pipe->endpoint->edesc->bInterval; 3589 sc->sc_ival = mstohz(ival); 3590 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3591 sc->sc_intr_xfer = xfer; 3592 return (USBD_IN_PROGRESS); 3593 } 3594 3595 /* Close the root interrupt pipe. */ 3596 void 3597 uhci_root_intr_close(usbd_pipe_handle pipe) 3598 { 3599 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3600 3601 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3602 sc->sc_intr_xfer = NULL; 3603 DPRINTF(("uhci_root_intr_close\n")); 3604 } 3605
Indexes created Tue Sep 30 20:09:53 GMT 2025