1 /* $NetBSD: uhci.c,v 1.120 2000/06/01 15:51:26 augustss 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 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@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://www.intel.com/design/usb/uhci11d.pdf 46 * USB spec: http://www.usb.org/developers/data/usb11.pdf 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/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 #if defined(__FreeBSD__) 82 #include <machine/clock.h> 83 84 #define delay(d) DELAY(d) 85 #endif 86 87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 88 89 #if defined(__OpenBSD__) 90 struct cfdriver uhci_cd = { 91 NULL, "uhci", DV_DULL 92 }; 93 #endif 94 95 #ifdef UHCI_DEBUG 96 uhci_softc_t *thesc; 97 #define DPRINTF(x) if (uhcidebug) printf x 98 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 99 int uhcidebug = 0; 100 #else 101 #define DPRINTF(x) 102 #define DPRINTFN(n,x) 103 #endif 104 105 /* 106 * The UHCI controller is little endian, so on big endian machines 107 * the data strored in memory needs to be swapped. 108 */ 109 #if defined(__FreeBSD__) || defined(__OpenBSD__) 110 #if BYTE_ORDER == BIG_ENDIAN 111 #define htole32(x) (bswap32(x)) 112 #define le32toh(x) (bswap32(x)) 113 #else 114 #define htole32(x) (x) 115 #define le32toh(x) (x) 116 #endif 117 #endif 118 119 struct uhci_pipe { 120 struct usbd_pipe pipe; 121 int nexttoggle; 122 123 u_char aborting; 124 usbd_xfer_handle abortstart, abortend; 125 126 /* Info needed for different pipe kinds. */ 127 union { 128 /* Control pipe */ 129 struct { 130 uhci_soft_qh_t *sqh; 131 usb_dma_t reqdma; 132 uhci_soft_td_t *setup, *stat; 133 u_int length; 134 } ctl; 135 /* Interrupt pipe */ 136 struct { 137 int npoll; 138 uhci_soft_qh_t **qhs; 139 } intr; 140 /* Bulk pipe */ 141 struct { 142 uhci_soft_qh_t *sqh; 143 u_int length; 144 int isread; 145 } bulk; 146 /* Iso pipe */ 147 struct iso { 148 uhci_soft_td_t **stds; 149 int next, inuse; 150 } iso; 151 } u; 152 }; 153 154 Static void uhci_busreset(uhci_softc_t *); 155 Static void uhci_shutdown(void *v); 156 Static void uhci_power(int, void *); 157 Static usbd_status uhci_run(uhci_softc_t *, int run); 158 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 159 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 160 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 161 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 162 #if 0 163 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 164 uhci_intr_info_t *); 165 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 166 #endif 167 168 Static void uhci_free_std_chain(uhci_softc_t *, 169 uhci_soft_td_t *, uhci_soft_td_t *); 170 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 171 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 172 uhci_soft_td_t **, uhci_soft_td_t **); 173 Static void uhci_poll_hub(void *); 174 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 175 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 176 Static void uhci_idone(uhci_intr_info_t *); 177 178 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 179 180 Static void uhci_timeout(void *); 181 Static void uhci_add_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 182 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 183 Static void uhci_remove_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 184 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 185 Static int uhci_str(usb_string_descriptor_t *, int, char *); 186 187 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 188 Static void uhci_device_isoc_enter(usbd_xfer_handle); 189 190 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 191 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 192 193 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 194 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 195 196 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 197 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 198 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 199 Static void uhci_device_ctrl_close(usbd_pipe_handle); 200 Static void uhci_device_ctrl_done(usbd_xfer_handle); 201 202 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 203 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 204 Static void uhci_device_intr_abort(usbd_xfer_handle); 205 Static void uhci_device_intr_close(usbd_pipe_handle); 206 Static void uhci_device_intr_done(usbd_xfer_handle); 207 208 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 209 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 210 Static void uhci_device_bulk_abort(usbd_xfer_handle); 211 Static void uhci_device_bulk_close(usbd_pipe_handle); 212 Static void uhci_device_bulk_done(usbd_xfer_handle); 213 214 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 216 Static void uhci_device_isoc_abort(usbd_xfer_handle); 217 Static void uhci_device_isoc_close(usbd_pipe_handle); 218 Static void uhci_device_isoc_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 222 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 223 Static void uhci_root_ctrl_close(usbd_pipe_handle); 224 Static void uhci_root_ctrl_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 228 Static void uhci_root_intr_abort(usbd_xfer_handle); 229 Static void uhci_root_intr_close(usbd_pipe_handle); 230 Static void uhci_root_intr_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_open(usbd_pipe_handle); 233 Static void uhci_poll(struct usbd_bus *); 234 Static void uhci_softintr(struct usbd_bus *); 235 236 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 237 238 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 239 Static void uhci_remove_intr(uhci_softc_t*, uhci_soft_qh_t*); 240 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 241 struct uhci_pipe *pipe, int ival); 242 243 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 244 Static void uhci_noop(usbd_pipe_handle pipe); 245 246 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 247 uhci_soft_qh_t *); 248 249 #ifdef UHCI_DEBUG 250 Static void uhci_dump_all(uhci_softc_t *); 251 Static void uhci_dumpregs(uhci_softc_t *); 252 Static void uhci_dump_qhs(uhci_soft_qh_t *); 253 Static void uhci_dump_qh(uhci_soft_qh_t *); 254 Static void uhci_dump_tds(uhci_soft_td_t *); 255 Static void uhci_dump_td(uhci_soft_td_t *); 256 Static void uhci_dump_ii(uhci_intr_info_t *ii); 257 void uhci_dump(void); 258 #endif 259 260 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 261 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 262 #define UWRITE1(sc, r, x) \ 263 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 264 #define UWRITE2(sc, r, x) \ 265 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 266 #define UWRITE4(sc, r, x) \ 267 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 268 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 269 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 270 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 271 272 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 273 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 274 275 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 276 277 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 278 279 #define UHCI_INTR_ENDPT 1 280 281 struct usbd_bus_methods uhci_bus_methods = { 282 uhci_open, 283 uhci_softintr, 284 uhci_poll, 285 uhci_allocm, 286 uhci_freem, 287 uhci_allocx, 288 uhci_freex, 289 }; 290 291 struct usbd_pipe_methods uhci_root_ctrl_methods = { 292 uhci_root_ctrl_transfer, 293 uhci_root_ctrl_start, 294 uhci_root_ctrl_abort, 295 uhci_root_ctrl_close, 296 uhci_noop, 297 uhci_root_ctrl_done, 298 }; 299 300 struct usbd_pipe_methods uhci_root_intr_methods = { 301 uhci_root_intr_transfer, 302 uhci_root_intr_start, 303 uhci_root_intr_abort, 304 uhci_root_intr_close, 305 uhci_noop, 306 uhci_root_intr_done, 307 }; 308 309 struct usbd_pipe_methods uhci_device_ctrl_methods = { 310 uhci_device_ctrl_transfer, 311 uhci_device_ctrl_start, 312 uhci_device_ctrl_abort, 313 uhci_device_ctrl_close, 314 uhci_noop, 315 uhci_device_ctrl_done, 316 }; 317 318 struct usbd_pipe_methods uhci_device_intr_methods = { 319 uhci_device_intr_transfer, 320 uhci_device_intr_start, 321 uhci_device_intr_abort, 322 uhci_device_intr_close, 323 uhci_device_clear_toggle, 324 uhci_device_intr_done, 325 }; 326 327 struct usbd_pipe_methods uhci_device_bulk_methods = { 328 uhci_device_bulk_transfer, 329 uhci_device_bulk_start, 330 uhci_device_bulk_abort, 331 uhci_device_bulk_close, 332 uhci_device_clear_toggle, 333 uhci_device_bulk_done, 334 }; 335 336 struct usbd_pipe_methods uhci_device_isoc_methods = { 337 uhci_device_isoc_transfer, 338 uhci_device_isoc_start, 339 uhci_device_isoc_abort, 340 uhci_device_isoc_close, 341 uhci_noop, 342 uhci_device_isoc_done, 343 }; 344 345 #define uhci_add_intr_info(sc, ii) \ 346 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 347 #define uhci_del_intr_info(ii) \ 348 LIST_REMOVE((ii), list) 349 350 Static __inline__ uhci_soft_qh_t * 351 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 352 { 353 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 354 355 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 356 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 357 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 358 printf("uhci_find_prev_qh: QH not found\n"); 359 return (NULL); 360 } 361 #endif 362 } 363 return (pqh); 364 } 365 366 void 367 uhci_busreset(uhci_softc_t *sc) 368 { 369 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 370 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 371 UHCICMD(sc, 0); /* do nothing */ 372 } 373 374 usbd_status 375 uhci_init(uhci_softc_t *sc) 376 { 377 usbd_status err; 378 int i, j; 379 uhci_soft_qh_t *csqh, *bsqh, *sqh; 380 uhci_soft_td_t *std; 381 382 DPRINTFN(1,("uhci_init: start\n")); 383 384 #ifdef UHCI_DEBUG 385 thesc = sc; 386 387 if (uhcidebug > 2) 388 uhci_dumpregs(sc); 389 #endif 390 391 uhci_run(sc, 0); /* stop the controller */ 392 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 393 394 uhci_busreset(sc); 395 396 /* Allocate and initialize real frame array. */ 397 err = usb_allocmem(&sc->sc_bus, 398 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 399 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 400 if (err) 401 return (err); 402 sc->sc_pframes = KERNADDR(&sc->sc_dma); 403 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 404 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 405 406 /* Allocate the dummy QH where bulk traffic will be queued. */ 407 bsqh = uhci_alloc_sqh(sc); 408 if (bsqh == NULL) 409 return (USBD_NOMEM); 410 bsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 411 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 412 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 413 414 /* Allocate the dummy QH where control traffic will be queued. */ 415 csqh = uhci_alloc_sqh(sc); 416 if (csqh == NULL) 417 return (USBD_NOMEM); 418 csqh->hlink = bsqh; 419 csqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_Q); 420 csqh->qh.qh_elink = htole32(UHCI_PTR_T); 421 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 422 423 /* 424 * Make all (virtual) frame list pointers point to the interrupt 425 * queue heads and the interrupt queue heads at the control 426 * queue head and point the physical frame list to the virtual. 427 */ 428 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 429 std = uhci_alloc_std(sc); 430 sqh = uhci_alloc_sqh(sc); 431 if (std == NULL || sqh == NULL) 432 return (USBD_NOMEM); 433 std->link.sqh = sqh; 434 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_Q); 435 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 436 std->td.td_token = htole32(0); 437 std->td.td_buffer = htole32(0); 438 sqh->hlink = csqh; 439 sqh->qh.qh_hlink = htole32(csqh->physaddr | UHCI_PTR_Q); 440 sqh->elink = 0; 441 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 442 sc->sc_vframes[i].htd = std; 443 sc->sc_vframes[i].etd = std; 444 sc->sc_vframes[i].hqh = sqh; 445 sc->sc_vframes[i].eqh = sqh; 446 for (j = i; 447 j < UHCI_FRAMELIST_COUNT; 448 j += UHCI_VFRAMELIST_COUNT) 449 sc->sc_pframes[j] = htole32(std->physaddr); 450 } 451 452 LIST_INIT(&sc->sc_intrhead); 453 454 SIMPLEQ_INIT(&sc->sc_free_xfers); 455 456 usb_callout_init(sc->sc_poll_handle); 457 458 /* Set up the bus struct. */ 459 sc->sc_bus.methods = &uhci_bus_methods; 460 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 461 462 #if defined(__NetBSD__) || defined(__OpenBSD__) 463 sc->sc_suspend = PWR_RESUME; 464 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 465 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 466 #endif 467 468 DPRINTFN(1,("uhci_init: enabling\n")); 469 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 470 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 471 472 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 473 474 return (uhci_run(sc, 1)); /* and here we go... */ 475 } 476 477 #if defined(__NetBSD__) || defined(__OpenBSD__) 478 int 479 uhci_activate(device_ptr_t self, enum devact act) 480 { 481 struct uhci_softc *sc = (struct uhci_softc *)self; 482 int rv = 0; 483 484 switch (act) { 485 case DVACT_ACTIVATE: 486 return (EOPNOTSUPP); 487 break; 488 489 case DVACT_DEACTIVATE: 490 if (sc->sc_child != NULL) 491 rv = config_deactivate(sc->sc_child); 492 break; 493 } 494 return (rv); 495 } 496 497 int 498 uhci_detach(struct uhci_softc *sc, int flags) 499 { 500 usbd_xfer_handle xfer; 501 int rv = 0; 502 503 if (sc->sc_child != NULL) 504 rv = config_detach(sc->sc_child, flags); 505 506 if (rv != 0) 507 return (rv); 508 509 #if defined(__NetBSD__) || defined(__OpenBSD__) 510 powerhook_disestablish(sc->sc_powerhook); 511 shutdownhook_disestablish(sc->sc_shutdownhook); 512 #endif 513 514 /* Free all xfers associated with this HC. */ 515 for (;;) { 516 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 517 if (xfer == NULL) 518 break; 519 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 520 free(xfer, M_USB); 521 } 522 523 /* XXX free other data structures XXX */ 524 525 return (rv); 526 } 527 #endif 528 529 usbd_status 530 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 531 { 532 struct uhci_softc *sc = (struct uhci_softc *)bus; 533 u_int32_t n; 534 535 /* 536 * XXX 537 * Since we are allocating a buffer we can assume that we will 538 * need TDs for it. Since we don't want to alolocate those from 539 * an interrupt context, we allocate them here and free them again. 540 * This is no guarantee that we'll get the TDs next time... 541 */ 542 n = size / 8; 543 if (n > 16) { 544 u_int32_t i; 545 uhci_soft_td_t **stds; 546 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 547 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, M_NOWAIT); 548 memset(stds, 0, sizeof(uhci_soft_td_t *) * n); 549 for(i=0; i < n; i++) 550 stds[i] = uhci_alloc_std(sc); 551 for(i=0; i < n; i++) 552 if (stds[i] != NULL) 553 uhci_free_std(sc, stds[i]); 554 free(stds, M_TEMP); 555 } 556 557 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 558 } 559 560 void 561 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 562 { 563 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 564 } 565 566 usbd_xfer_handle 567 uhci_allocx(struct usbd_bus *bus) 568 { 569 struct uhci_softc *sc = (struct uhci_softc *)bus; 570 usbd_xfer_handle xfer; 571 572 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 573 if (xfer != NULL) { 574 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 575 #ifdef DIAGNOSTIC 576 if (xfer->busy_free != XFER_FREE) { 577 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 578 xfer->busy_free); 579 } 580 #endif 581 } else { 582 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 583 } 584 if (xfer != NULL) { 585 memset(xfer, 0, sizeof (struct uhci_xfer)); 586 UXFER(xfer)->iinfo.sc = sc; 587 #ifdef DIAGNOSTIC 588 UXFER(xfer)->iinfo.isdone = 1; 589 #endif 590 } 591 #ifdef DIAGNOSTIC 592 xfer->busy_free = XFER_BUSY; 593 #endif 594 return (xfer); 595 } 596 597 void 598 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 599 { 600 struct uhci_softc *sc = (struct uhci_softc *)bus; 601 602 #ifdef DIAGNOSTIC 603 if (xfer->busy_free != XFER_BUSY) { 604 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 605 xfer->busy_free); 606 return; 607 } 608 xfer->busy_free = XFER_FREE; 609 if (!UXFER(xfer)->iinfo.isdone) { 610 printf("uhci_freex: !isdone\n"); 611 return; 612 } 613 #endif 614 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 615 } 616 617 /* 618 * Shut down the controller when the system is going down. 619 */ 620 void 621 uhci_shutdown(void *v) 622 { 623 uhci_softc_t *sc = v; 624 625 DPRINTF(("uhci_shutdown: stopping the HC\n")); 626 uhci_run(sc, 0); /* stop the controller */ 627 } 628 629 /* 630 * Handle suspend/resume. 631 * 632 * We need to switch to polling mode here, because this routine is 633 * called from an interrupt context. This is all right since we 634 * are almost suspended anyway. 635 */ 636 void 637 uhci_power(int why, void *v) 638 { 639 uhci_softc_t *sc = v; 640 int cmd; 641 int s; 642 643 s = splusb(); 644 cmd = UREAD2(sc, UHCI_CMD); 645 646 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 647 sc, why, sc->sc_suspend, cmd)); 648 649 if (why != PWR_RESUME) { 650 #ifdef UHCI_DEBUG 651 if (uhcidebug > 2) 652 uhci_dumpregs(sc); 653 #endif 654 if (sc->sc_intr_xfer != NULL) 655 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 656 sc->sc_intr_xfer); 657 sc->sc_bus.use_polling++; 658 uhci_run(sc, 0); /* stop the controller */ 659 660 /* save some state if BIOS doesn't */ 661 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 662 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 663 664 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 665 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 666 sc->sc_suspend = why; 667 sc->sc_bus.use_polling--; 668 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 669 } else { 670 #ifdef DIAGNOSTIC 671 if (sc->sc_suspend == PWR_RESUME) 672 printf("uhci_power: weird, resume without suspend.\n"); 673 #endif 674 sc->sc_bus.use_polling++; 675 sc->sc_suspend = why; 676 if (cmd & UHCI_CMD_RS) 677 uhci_run(sc, 0); /* in case BIOS has started it */ 678 679 /* restore saved state */ 680 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 681 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 682 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 683 684 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 685 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 686 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 687 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 688 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 689 uhci_run(sc, 1); /* and start traffic again */ 690 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 691 sc->sc_bus.use_polling--; 692 if (sc->sc_intr_xfer != NULL) 693 usb_callout(sc->sc_poll_handle, sc->sc_ival, 694 uhci_poll_hub, sc->sc_intr_xfer); 695 #ifdef UHCI_DEBUG 696 if (uhcidebug > 2) 697 uhci_dumpregs(sc); 698 #endif 699 } 700 splx(s); 701 } 702 703 #ifdef UHCI_DEBUG 704 Static void 705 uhci_dumpregs(uhci_softc_t *sc) 706 { 707 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 708 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 709 USBDEVNAME(sc->sc_bus.bdev), 710 UREAD2(sc, UHCI_CMD), 711 UREAD2(sc, UHCI_STS), 712 UREAD2(sc, UHCI_INTR), 713 UREAD2(sc, UHCI_FRNUM), 714 UREAD4(sc, UHCI_FLBASEADDR), 715 UREAD1(sc, UHCI_SOF), 716 UREAD2(sc, UHCI_PORTSC1), 717 UREAD2(sc, UHCI_PORTSC2))); 718 } 719 720 void 721 uhci_dump_td(uhci_soft_td_t *p) 722 { 723 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 724 "token=0x%08lx buffer=0x%08lx\n", 725 p, (long)p->physaddr, 726 (long)le32toh(p->td.td_link), 727 (long)le32toh(p->td.td_status), 728 (long)le32toh(p->td.td_token), 729 (long)le32toh(p->td.td_buffer))); 730 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 731 "D=%d,maxlen=%d\n", 732 (int)le32toh(p->td.td_link), 733 "\20\1T\2Q\3VF", 734 (int)le32toh(p->td.td_status), 735 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 736 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 737 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 738 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 739 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 740 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 741 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 742 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 743 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 744 } 745 746 void 747 uhci_dump_qh(uhci_soft_qh_t *sqh) 748 { 749 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 750 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 751 le32toh(sqh->qh.qh_elink))); 752 } 753 754 755 #if 1 756 void 757 uhci_dump(void) 758 { 759 uhci_dump_all(thesc); 760 } 761 #endif 762 763 void 764 uhci_dump_all(uhci_softc_t *sc) 765 { 766 uhci_dumpregs(sc); 767 printf("intrs=%d\n", sc->sc_bus.no_intrs); 768 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 769 uhci_dump_qh(sc->sc_ctl_start); 770 } 771 772 773 void 774 uhci_dump_qhs(uhci_soft_qh_t *sqh) 775 { 776 uhci_dump_qh(sqh); 777 778 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 779 * Traverses sideways first, then down. 780 * 781 * QH1 782 * QH2 783 * No QH 784 * TD2.1 785 * TD2.2 786 * TD1.1 787 * etc. 788 * 789 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 790 */ 791 792 793 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 794 uhci_dump_qhs(sqh->hlink); 795 else 796 DPRINTF(("No QH\n")); 797 798 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 799 uhci_dump_tds(sqh->elink); 800 else 801 DPRINTF(("No TD\n")); 802 } 803 804 void 805 uhci_dump_tds(uhci_soft_td_t *std) 806 { 807 uhci_soft_td_t *td; 808 809 for(td = std; td != NULL; td = td->link.std) { 810 uhci_dump_td(td); 811 812 /* Check whether the link pointer in this TD marks 813 * the link pointer as end of queue. This avoids 814 * printing the free list in case the queue/TD has 815 * already been moved there (seatbelt). 816 */ 817 if (le32toh(td->td.td_link) & UHCI_PTR_T || 818 le32toh(td->td.td_link) == 0) 819 break; 820 } 821 } 822 823 Static void 824 uhci_dump_ii(uhci_intr_info_t *ii) 825 { 826 usbd_pipe_handle pipe; 827 usb_endpoint_descriptor_t *ed; 828 usbd_device_handle dev; 829 830 #ifdef DIAGNOSTIC 831 #define DONE ii->isdone 832 #else 833 #define DONE 0 834 #endif 835 if (ii == NULL) { 836 printf("ii NULL\n"); 837 return; 838 } 839 if (ii->xfer == NULL) { 840 printf("ii %p: done=%d xfer=NULL\n", 841 ii, DONE); 842 return; 843 } 844 pipe = ii->xfer->pipe; 845 if (pipe == NULL) { 846 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 847 ii, DONE, ii->xfer); 848 return; 849 } 850 ed = pipe->endpoint->edesc; 851 dev = pipe->device; 852 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", 853 ii, DONE, ii->xfer, dev, 854 UGETW(dev->ddesc.idVendor), 855 UGETW(dev->ddesc.idProduct), 856 dev->address, pipe, 857 ed->bEndpointAddress, ed->bmAttributes); 858 #undef DONE 859 } 860 861 void uhci_dump_iis(struct uhci_softc *sc); 862 void 863 uhci_dump_iis(struct uhci_softc *sc) 864 { 865 uhci_intr_info_t *ii; 866 867 printf("intr_info list:\n"); 868 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 869 uhci_dump_ii(ii); 870 } 871 872 void iidump(void); 873 void iidump(void) { uhci_dump_iis(thesc); } 874 875 #endif 876 877 /* 878 * This routine is executed periodically and simulates interrupts 879 * from the root controller interrupt pipe for port status change. 880 */ 881 void 882 uhci_poll_hub(void *addr) 883 { 884 usbd_xfer_handle xfer = addr; 885 usbd_pipe_handle pipe = xfer->pipe; 886 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 887 int s; 888 u_char *p; 889 890 DPRINTFN(20, ("uhci_poll_hub\n")); 891 892 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 893 894 p = KERNADDR(&xfer->dmabuf); 895 p[0] = 0; 896 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 897 p[0] |= 1<<1; 898 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 899 p[0] |= 1<<2; 900 if (p[0] == 0) 901 /* No change, try again in a while */ 902 return; 903 904 xfer->actlen = 1; 905 xfer->status = USBD_NORMAL_COMPLETION; 906 s = splusb(); 907 xfer->device->bus->intr_context++; 908 usb_transfer_complete(xfer); 909 xfer->device->bus->intr_context--; 910 splx(s); 911 } 912 913 void 914 uhci_root_intr_done(usbd_xfer_handle xfer) 915 { 916 } 917 918 void 919 uhci_root_ctrl_done(usbd_xfer_handle xfer) 920 { 921 } 922 923 /* Add control QH, called at splusb(). */ 924 void 925 uhci_add_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 926 { 927 uhci_soft_qh_t *eqh; 928 929 SPLUSBCHECK; 930 931 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 932 eqh = sc->sc_ctl_end; 933 sqh->hlink = eqh->hlink; 934 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 935 eqh->hlink = sqh; 936 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 937 sc->sc_ctl_end = sqh; 938 } 939 940 /* Remove control QH, called at splusb(). */ 941 void 942 uhci_remove_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 943 { 944 uhci_soft_qh_t *pqh; 945 946 SPLUSBCHECK; 947 948 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 949 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 950 pqh->hlink = sqh->hlink; 951 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 952 if (sc->sc_ctl_end == sqh) 953 sc->sc_ctl_end = pqh; 954 } 955 956 /* Add bulk QH, called at splusb(). */ 957 void 958 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 959 { 960 uhci_soft_qh_t *eqh; 961 962 SPLUSBCHECK; 963 964 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 965 eqh = sc->sc_bulk_end; 966 sqh->hlink = eqh->hlink; 967 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 968 eqh->hlink = sqh; 969 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 970 sc->sc_bulk_end = sqh; 971 } 972 973 /* Remove bulk QH, called at splusb(). */ 974 void 975 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 976 { 977 uhci_soft_qh_t *pqh; 978 979 SPLUSBCHECK; 980 981 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 982 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 983 pqh->hlink = sqh->hlink; 984 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 985 if (sc->sc_bulk_end == sqh) 986 sc->sc_bulk_end = pqh; 987 } 988 989 int 990 uhci_intr(void *arg) 991 { 992 uhci_softc_t *sc = arg; 993 int status; 994 int ack; 995 996 #ifdef UHCI_DEBUG 997 if (uhcidebug > 15) { 998 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 999 uhci_dumpregs(sc); 1000 } 1001 #endif 1002 1003 if (sc->sc_suspend != PWR_RESUME) { 1004 printf("%s: interrupt while not operating ignored\n", 1005 USBDEVNAME(sc->sc_bus.bdev)); 1006 return (0); 1007 } 1008 1009 status = UREAD2(sc, UHCI_STS); 1010 if (status == 0) /* The interrupt was not for us. */ 1011 return (0); 1012 1013 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1014 if (sc->sc_suspend != PWR_RESUME) 1015 printf("uhci_intr: suspended sts=0x%x\n", status); 1016 #endif 1017 1018 ack = 0; 1019 if (status & UHCI_STS_USBINT) 1020 ack |= UHCI_STS_USBINT; 1021 if (status & UHCI_STS_USBEI) 1022 ack |= UHCI_STS_USBEI; 1023 if (status & UHCI_STS_RD) { 1024 ack |= UHCI_STS_RD; 1025 #ifdef UHCI_DEBUG 1026 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1027 #endif 1028 } 1029 if (status & UHCI_STS_HSE) { 1030 ack |= UHCI_STS_HSE; 1031 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1032 } 1033 if (status & UHCI_STS_HCPE) { 1034 ack |= UHCI_STS_HCPE; 1035 printf("%s: host controller process error\n", 1036 USBDEVNAME(sc->sc_bus.bdev)); 1037 } 1038 if (status & UHCI_STS_HCH) { 1039 /* no acknowledge needed */ 1040 printf("%s: host controller halted\n", 1041 USBDEVNAME(sc->sc_bus.bdev)); 1042 sc->sc_dying = 1; 1043 #ifdef UHCI_DEBUG 1044 uhci_dump_all(sc); 1045 #endif 1046 1047 } 1048 1049 if (ack) /* acknowledge the ints */ 1050 UWRITE2(sc, UHCI_STS, ack); 1051 else /* nothing to acknowledge */ 1052 return (0); 1053 1054 sc->sc_bus.no_intrs++; 1055 usb_schedsoftintr(&sc->sc_bus); 1056 1057 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1058 1059 return (1); 1060 } 1061 1062 void 1063 uhci_softintr(struct usbd_bus *bus) 1064 { 1065 uhci_softc_t *sc = (uhci_softc_t *)bus; 1066 uhci_intr_info_t *ii; 1067 1068 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1069 1070 sc->sc_bus.intr_context++; 1071 1072 /* 1073 * Interrupts on UHCI really suck. When the host controller 1074 * interrupts because a transfer is completed there is no 1075 * way of knowing which transfer it was. You can scan down 1076 * the TDs and QHs of the previous frame to limit the search, 1077 * but that assumes that the interrupt was not delayed by more 1078 * than 1 ms, which may not always be true (e.g. after debug 1079 * output on a slow console). 1080 * We scan all interrupt descriptors to see if any have 1081 * completed. 1082 */ 1083 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1084 uhci_check_intr(sc, ii); 1085 1086 sc->sc_bus.intr_context--; 1087 } 1088 1089 /* Check for an interrupt. */ 1090 void 1091 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1092 { 1093 uhci_soft_td_t *std, *lstd; 1094 u_int32_t status; 1095 1096 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1097 #ifdef DIAGNOSTIC 1098 if (ii == NULL) { 1099 printf("uhci_check_intr: no ii? %p\n", ii); 1100 return; 1101 } 1102 #endif 1103 if (ii->stdstart == NULL) 1104 return; 1105 lstd = ii->stdend; 1106 #ifdef DIAGNOSTIC 1107 if (lstd == NULL) { 1108 printf("uhci_check_intr: std==0\n"); 1109 return; 1110 } 1111 #endif 1112 /* 1113 * If the last TD is still active we need to check whether there 1114 * is a an error somewhere in the middle, or whether there was a 1115 * short packet (SPD and not ACTIVE). 1116 */ 1117 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1118 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1119 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1120 status = le32toh(std->td.td_status); 1121 /* If there's an active TD the xfer isn't done. */ 1122 if (status & UHCI_TD_ACTIVE) 1123 break; 1124 /* Any kind of error makes the xfer done. */ 1125 if (status & UHCI_TD_STALLED) 1126 goto done; 1127 /* We want short packets, and it is short: it's done */ 1128 if ((status & UHCI_TD_SPD) && 1129 UHCI_TD_GET_ACTLEN(status) < 1130 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1131 goto done; 1132 } 1133 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1134 ii, ii->stdstart)); 1135 return; 1136 } 1137 done: 1138 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1139 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1140 uhci_idone(ii); 1141 } 1142 1143 /* Called at splusb() */ 1144 void 1145 uhci_idone(uhci_intr_info_t *ii) 1146 { 1147 usbd_xfer_handle xfer = ii->xfer; 1148 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1149 uhci_soft_td_t *std; 1150 u_int32_t status = 0, nstatus; 1151 int actlen; 1152 1153 #ifdef DIAGNOSTIC 1154 { 1155 int s = splhigh(); 1156 if (ii->isdone) { 1157 splx(s); 1158 #ifdef UHCI_DEBUG 1159 printf("uhci_idone: ii is done!\n "); 1160 uhci_dump_ii(ii); 1161 #else 1162 printf("uhci_idone: ii=%p is done!\n", ii); 1163 #endif 1164 return; 1165 } 1166 ii->isdone = 1; 1167 splx(s); 1168 } 1169 #endif 1170 1171 if (xfer->status == USBD_CANCELLED || 1172 xfer->status == USBD_TIMEOUT) { 1173 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1174 return; 1175 } 1176 1177 if (xfer->nframes != 0) { 1178 /* Isoc transfer, do things differently. */ 1179 uhci_soft_td_t **stds = upipe->u.iso.stds; 1180 int i, n, nframes; 1181 1182 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1183 1184 nframes = xfer->nframes; 1185 actlen = 0; 1186 n = UXFER(xfer)->curframe; 1187 for (i = 0; i < nframes; i++) { 1188 std = stds[n]; 1189 #ifdef UHCI_DEBUG 1190 if (uhcidebug > 5) { 1191 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1192 uhci_dump_td(std); 1193 } 1194 #endif 1195 if (++n >= UHCI_VFRAMELIST_COUNT) 1196 n = 0; 1197 status = le32toh(std->td.td_status); 1198 actlen += UHCI_TD_GET_ACTLEN(status); 1199 } 1200 upipe->u.iso.inuse -= nframes; 1201 xfer->actlen = actlen; 1202 xfer->status = USBD_NORMAL_COMPLETION; 1203 usb_transfer_complete(xfer); 1204 return; 1205 } 1206 1207 #ifdef UHCI_DEBUG 1208 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1209 ii, xfer, upipe)); 1210 if (uhcidebug > 10) 1211 uhci_dump_tds(ii->stdstart); 1212 #endif 1213 1214 /* The transfer is done, compute actual length and status. */ 1215 actlen = 0; 1216 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1217 nstatus = le32toh(std->td.td_status); 1218 if (nstatus & UHCI_TD_ACTIVE) 1219 break; 1220 1221 status = nstatus; 1222 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1223 UHCI_TD_PID_SETUP) 1224 actlen += UHCI_TD_GET_ACTLEN(status); 1225 } 1226 /* If there are left over TDs we need to update the toggle. */ 1227 if (std != NULL) 1228 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1229 1230 status &= UHCI_TD_ERROR; 1231 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1232 actlen, status)); 1233 xfer->actlen = actlen; 1234 if (status != 0) { 1235 DPRINTFN((status == UHCI_TD_STALLED)*10, 1236 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1237 "status 0x%b\n", 1238 xfer->pipe->device->address, 1239 xfer->pipe->endpoint->edesc->bEndpointAddress, 1240 (int)status, 1241 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1242 "STALLED\30ACTIVE")); 1243 if (status == UHCI_TD_STALLED) 1244 xfer->status = USBD_STALLED; 1245 else 1246 xfer->status = USBD_IOERROR; /* more info XXX */ 1247 } else { 1248 xfer->status = USBD_NORMAL_COMPLETION; 1249 } 1250 usb_transfer_complete(xfer); 1251 } 1252 1253 /* 1254 * Called when a request does not complete. 1255 */ 1256 void 1257 uhci_timeout(void *addr) 1258 { 1259 uhci_intr_info_t *ii = addr; 1260 1261 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1262 1263 #ifdef UHCI_DEBUG 1264 if (uhcidebug > 10) 1265 uhci_dump_tds(ii->stdstart); 1266 #endif 1267 1268 ii->xfer->device->bus->intr_context++; 1269 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1270 ii->xfer->device->bus->intr_context--; 1271 } 1272 1273 /* 1274 * Wait here until controller claims to have an interrupt. 1275 * Then call uhci_intr and return. Use timeout to avoid waiting 1276 * too long. 1277 * Only used during boot when interrupts are not enabled yet. 1278 */ 1279 void 1280 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1281 { 1282 int timo = xfer->timeout; 1283 uhci_intr_info_t *ii; 1284 1285 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1286 1287 xfer->status = USBD_IN_PROGRESS; 1288 for (; timo >= 0; timo--) { 1289 usb_delay_ms(&sc->sc_bus, 1); 1290 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1291 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1292 uhci_intr(sc); 1293 if (xfer->status != USBD_IN_PROGRESS) 1294 return; 1295 } 1296 } 1297 1298 /* Timeout */ 1299 DPRINTF(("uhci_waitintr: timeout\n")); 1300 for (ii = LIST_FIRST(&sc->sc_intrhead); 1301 ii != NULL && ii->xfer != xfer; 1302 ii = LIST_NEXT(ii, list)) 1303 ; 1304 #ifdef DIAGNOSTIC 1305 if (ii == NULL) 1306 panic("uhci_waitintr: lost intr_info\n"); 1307 #endif 1308 uhci_idone(ii); 1309 } 1310 1311 void 1312 uhci_poll(struct usbd_bus *bus) 1313 { 1314 uhci_softc_t *sc = (uhci_softc_t *)bus; 1315 1316 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1317 uhci_intr(sc); 1318 } 1319 1320 #if 0 1321 void 1322 uhci_reset(uhci_softc_t *sc) 1323 { 1324 int n; 1325 1326 UHCICMD(sc, UHCI_CMD_HCRESET); 1327 /* The reset bit goes low when the controller is done. */ 1328 for (n = 0; n < UHCI_RESET_TIMEOUT && 1329 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1330 usb_delay_ms(&sc->sc_bus, 1); 1331 if (n >= UHCI_RESET_TIMEOUT) 1332 printf("%s: controller did not reset\n", 1333 USBDEVNAME(sc->sc_bus.bdev)); 1334 } 1335 #endif 1336 1337 usbd_status 1338 uhci_run(uhci_softc_t *sc, int run) 1339 { 1340 int s, n, running; 1341 u_int16_t cmd; 1342 1343 run = run != 0; 1344 s = splusb(); 1345 DPRINTF(("uhci_run: setting run=%d\n", run)); 1346 cmd = UREAD2(sc, UHCI_CMD); 1347 if (run) 1348 cmd |= UHCI_CMD_RS; 1349 else 1350 cmd &= ~UHCI_CMD_RS; 1351 UHCICMD(sc, cmd); 1352 for(n = 0; n < 10; n++) { 1353 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1354 /* return when we've entered the state we want */ 1355 if (run == running) { 1356 splx(s); 1357 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1358 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1359 return (USBD_NORMAL_COMPLETION); 1360 } 1361 usb_delay_ms(&sc->sc_bus, 1); 1362 } 1363 splx(s); 1364 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1365 run ? "start" : "stop"); 1366 return (USBD_IOERROR); 1367 } 1368 1369 /* 1370 * Memory management routines. 1371 * uhci_alloc_std allocates TDs 1372 * uhci_alloc_sqh allocates QHs 1373 * These two routines do their own free list management, 1374 * partly for speed, partly because allocating DMAable memory 1375 * has page size granularaity so much memory would be wasted if 1376 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1377 */ 1378 1379 uhci_soft_td_t * 1380 uhci_alloc_std(uhci_softc_t *sc) 1381 { 1382 uhci_soft_td_t *std; 1383 usbd_status err; 1384 int i, offs; 1385 usb_dma_t dma; 1386 1387 if (sc->sc_freetds == NULL) { 1388 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1389 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1390 UHCI_TD_ALIGN, &dma); 1391 if (err) 1392 return (0); 1393 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1394 offs = i * UHCI_STD_SIZE; 1395 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1396 std->physaddr = DMAADDR(&dma) + offs; 1397 std->link.std = sc->sc_freetds; 1398 sc->sc_freetds = std; 1399 } 1400 } 1401 std = sc->sc_freetds; 1402 sc->sc_freetds = std->link.std; 1403 memset(&std->td, 0, sizeof(uhci_td_t)); 1404 return std; 1405 } 1406 1407 void 1408 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1409 { 1410 #ifdef DIAGNOSTIC 1411 #define TD_IS_FREE 0x12345678 1412 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1413 printf("uhci_free_std: freeing free TD %p\n", std); 1414 return; 1415 } 1416 std->td.td_token = htole32(TD_IS_FREE); 1417 #endif 1418 std->link.std = sc->sc_freetds; 1419 sc->sc_freetds = std; 1420 } 1421 1422 uhci_soft_qh_t * 1423 uhci_alloc_sqh(uhci_softc_t *sc) 1424 { 1425 uhci_soft_qh_t *sqh; 1426 usbd_status err; 1427 int i, offs; 1428 usb_dma_t dma; 1429 1430 if (sc->sc_freeqhs == NULL) { 1431 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1432 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1433 UHCI_QH_ALIGN, &dma); 1434 if (err) 1435 return (0); 1436 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1437 offs = i * UHCI_SQH_SIZE; 1438 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1439 sqh->physaddr = DMAADDR(&dma) + offs; 1440 sqh->hlink = sc->sc_freeqhs; 1441 sc->sc_freeqhs = sqh; 1442 } 1443 } 1444 sqh = sc->sc_freeqhs; 1445 sc->sc_freeqhs = sqh->hlink; 1446 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1447 return (sqh); 1448 } 1449 1450 void 1451 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1452 { 1453 sqh->hlink = sc->sc_freeqhs; 1454 sc->sc_freeqhs = sqh; 1455 } 1456 1457 void 1458 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1459 uhci_soft_td_t *stdend) 1460 { 1461 uhci_soft_td_t *p; 1462 1463 for (; std != stdend; std = p) { 1464 p = std->link.std; 1465 uhci_free_std(sc, std); 1466 } 1467 } 1468 1469 usbd_status 1470 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1471 int rd, u_int16_t flags, usb_dma_t *dma, 1472 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1473 { 1474 uhci_soft_td_t *p, *lastp; 1475 uhci_physaddr_t lastlink; 1476 int i, ntd, l, tog, maxp; 1477 u_int32_t status; 1478 int addr = upipe->pipe.device->address; 1479 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1480 1481 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1482 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1483 upipe->pipe.device->lowspeed, flags)); 1484 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1485 if (maxp == 0) { 1486 printf("uhci_alloc_std_chain: maxp=0\n"); 1487 return (USBD_INVAL); 1488 } 1489 ntd = (len + maxp - 1) / maxp; 1490 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1491 ntd++; 1492 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1493 if (ntd == 0) { 1494 *sp = *ep = 0; 1495 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1496 return (USBD_NORMAL_COMPLETION); 1497 } 1498 tog = upipe->nexttoggle; 1499 if (ntd % 2 == 0) 1500 tog ^= 1; 1501 upipe->nexttoggle = tog ^ 1; 1502 lastp = 0; 1503 lastlink = UHCI_PTR_T; 1504 ntd--; 1505 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1506 if (upipe->pipe.device->lowspeed) 1507 status |= UHCI_TD_LS; 1508 if (flags & USBD_SHORT_XFER_OK) 1509 status |= UHCI_TD_SPD; 1510 for (i = ntd; i >= 0; i--) { 1511 p = uhci_alloc_std(sc); 1512 if (p == NULL) { 1513 uhci_free_std_chain(sc, lastp, 0); 1514 return (USBD_NOMEM); 1515 } 1516 p->link.std = lastp; 1517 if (lastlink == UHCI_PTR_T) 1518 p->td.td_link = htole32(lastlink); 1519 else 1520 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1521 lastp = p; 1522 lastlink = p->physaddr; 1523 p->td.td_status = htole32(status); 1524 if (i == ntd) { 1525 /* last TD */ 1526 l = len % maxp; 1527 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1528 l = maxp; 1529 *ep = p; 1530 } else 1531 l = maxp; 1532 p->td.td_token = 1533 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1534 UHCI_TD_OUT(l, endpt, addr, tog)); 1535 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1536 tog ^= 1; 1537 } 1538 *sp = lastp; 1539 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1540 upipe->nexttoggle)); 1541 return (USBD_NORMAL_COMPLETION); 1542 } 1543 1544 void 1545 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1546 { 1547 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1548 upipe->nexttoggle = 0; 1549 } 1550 1551 void 1552 uhci_noop(usbd_pipe_handle pipe) 1553 { 1554 } 1555 1556 usbd_status 1557 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1558 { 1559 usbd_status err; 1560 1561 /* Insert last in queue. */ 1562 err = usb_insert_transfer(xfer); 1563 if (err) 1564 return (err); 1565 1566 /* 1567 * Pipe isn't running (otherwise err would be USBD_INPROG), 1568 * so start it first. 1569 */ 1570 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1571 } 1572 1573 usbd_status 1574 uhci_device_bulk_start(usbd_xfer_handle xfer) 1575 { 1576 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1577 usbd_device_handle dev = upipe->pipe.device; 1578 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1579 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1580 uhci_soft_td_t *data, *dataend; 1581 uhci_soft_qh_t *sqh; 1582 usbd_status err; 1583 int len, isread, endpt; 1584 int s; 1585 1586 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1587 xfer, xfer->length, xfer->flags)); 1588 1589 if (sc->sc_dying) 1590 return (USBD_IOERROR); 1591 1592 #ifdef DIAGNOSTIC 1593 if (xfer->rqflags & URQ_REQUEST) 1594 panic("uhci_device_bulk_transfer: a request\n"); 1595 #endif 1596 1597 len = xfer->length; 1598 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1599 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1600 sqh = upipe->u.bulk.sqh; 1601 1602 upipe->u.bulk.isread = isread; 1603 upipe->u.bulk.length = len; 1604 1605 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1606 &xfer->dmabuf, &data, &dataend); 1607 if (err) 1608 return (err); 1609 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1610 1611 #ifdef UHCI_DEBUG 1612 if (uhcidebug > 8) { 1613 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1614 uhci_dump_tds(data); 1615 } 1616 #endif 1617 1618 /* Set up interrupt info. */ 1619 ii->xfer = xfer; 1620 ii->stdstart = data; 1621 ii->stdend = dataend; 1622 #ifdef DIAGNOSTIC 1623 if (!ii->isdone) { 1624 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1625 } 1626 ii->isdone = 0; 1627 #endif 1628 1629 sqh->elink = data; 1630 sqh->qh.qh_elink = htole32(data->physaddr); 1631 1632 s = splusb(); 1633 uhci_add_bulk(sc, sqh); 1634 uhci_add_intr_info(sc, ii); 1635 1636 if (xfer->timeout && !sc->sc_bus.use_polling) { 1637 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1638 uhci_timeout, ii); 1639 } 1640 xfer->status = USBD_IN_PROGRESS; 1641 splx(s); 1642 1643 #ifdef UHCI_DEBUG 1644 if (uhcidebug > 10) { 1645 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1646 uhci_dump_tds(data); 1647 } 1648 #endif 1649 1650 if (sc->sc_bus.use_polling) 1651 uhci_waitintr(sc, xfer); 1652 1653 return (USBD_IN_PROGRESS); 1654 } 1655 1656 /* Abort a device bulk request. */ 1657 void 1658 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1659 { 1660 DPRINTF(("uhci_device_bulk_abort:\n")); 1661 uhci_abort_xfer(xfer, USBD_CANCELLED); 1662 } 1663 1664 /* 1665 * XXX This way of aborting is neither safe, nor good. 1666 * But it will have to do until I figure out what to do. 1667 * I apologize for the delay(). 1668 */ 1669 void 1670 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1671 { 1672 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1673 uhci_soft_td_t *std; 1674 int s; 1675 1676 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1677 1678 s = splusb(); 1679 1680 /* Transfer is already done. */ 1681 if (xfer->status != USBD_NOT_STARTED && 1682 xfer->status != USBD_IN_PROGRESS) { 1683 splx(s); 1684 return; 1685 } 1686 1687 /* Make interrupt routine ignore it, */ 1688 xfer->status = status; 1689 1690 /* don't timeout, */ 1691 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1692 1693 /* make hardware ignore it, */ 1694 for (std = ii->stdstart; std != NULL; std = std->link.std) 1695 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1696 1697 xfer->hcpriv = ii; 1698 1699 splx(s); 1700 1701 delay(1000); 1702 1703 s = splusb(); 1704 #ifdef DIAGNOSTIC 1705 ii->isdone = 1; 1706 #endif 1707 usb_transfer_complete(xfer); 1708 splx(s); 1709 } 1710 1711 /* Close a device bulk pipe. */ 1712 void 1713 uhci_device_bulk_close(usbd_pipe_handle pipe) 1714 { 1715 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1716 usbd_device_handle dev = upipe->pipe.device; 1717 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1718 1719 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1720 } 1721 1722 usbd_status 1723 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1724 { 1725 usbd_status err; 1726 1727 /* Insert last in queue. */ 1728 err = usb_insert_transfer(xfer); 1729 if (err) 1730 return (err); 1731 1732 /* 1733 * Pipe isn't running (otherwise err would be USBD_INPROG), 1734 * so start it first. 1735 */ 1736 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1737 } 1738 1739 usbd_status 1740 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1741 { 1742 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1743 usbd_status err; 1744 1745 if (sc->sc_dying) 1746 return (USBD_IOERROR); 1747 1748 #ifdef DIAGNOSTIC 1749 if (!(xfer->rqflags & URQ_REQUEST)) 1750 panic("uhci_device_ctrl_transfer: not a request\n"); 1751 #endif 1752 1753 err = uhci_device_request(xfer); 1754 if (err) 1755 return (err); 1756 1757 if (sc->sc_bus.use_polling) 1758 uhci_waitintr(sc, xfer); 1759 return (USBD_IN_PROGRESS); 1760 } 1761 1762 usbd_status 1763 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1764 { 1765 usbd_status err; 1766 1767 /* Insert last in queue. */ 1768 err = usb_insert_transfer(xfer); 1769 if (err) 1770 return (err); 1771 1772 /* 1773 * Pipe isn't running (otherwise err would be USBD_INPROG), 1774 * so start it first. 1775 */ 1776 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1777 } 1778 1779 usbd_status 1780 uhci_device_intr_start(usbd_xfer_handle xfer) 1781 { 1782 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1783 usbd_device_handle dev = upipe->pipe.device; 1784 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1785 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1786 uhci_soft_td_t *data, *dataend; 1787 uhci_soft_qh_t *sqh; 1788 usbd_status err; 1789 int i, s; 1790 1791 if (sc->sc_dying) 1792 return (USBD_IOERROR); 1793 1794 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1795 xfer, xfer->length, xfer->flags)); 1796 1797 #ifdef DIAGNOSTIC 1798 if (xfer->rqflags & URQ_REQUEST) 1799 panic("uhci_device_intr_transfer: a request\n"); 1800 #endif 1801 1802 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1803 &xfer->dmabuf, &data, &dataend); 1804 if (err) 1805 return (err); 1806 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1807 1808 #ifdef UHCI_DEBUG 1809 if (uhcidebug > 10) { 1810 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1811 uhci_dump_tds(data); 1812 uhci_dump_qh(upipe->u.intr.qhs[0]); 1813 } 1814 #endif 1815 1816 s = splusb(); 1817 /* Set up interrupt info. */ 1818 ii->xfer = xfer; 1819 ii->stdstart = data; 1820 ii->stdend = dataend; 1821 #ifdef DIAGNOSTIC 1822 if (!ii->isdone) { 1823 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1824 } 1825 ii->isdone = 0; 1826 #endif 1827 1828 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1829 upipe->u.intr.qhs[0])); 1830 for (i = 0; i < upipe->u.intr.npoll; i++) { 1831 sqh = upipe->u.intr.qhs[i]; 1832 sqh->elink = data; 1833 sqh->qh.qh_elink = htole32(data->physaddr); 1834 } 1835 uhci_add_intr_info(sc, ii); 1836 xfer->status = USBD_IN_PROGRESS; 1837 splx(s); 1838 1839 #ifdef UHCI_DEBUG 1840 if (uhcidebug > 10) { 1841 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1842 uhci_dump_tds(data); 1843 uhci_dump_qh(upipe->u.intr.qhs[0]); 1844 } 1845 #endif 1846 1847 return (USBD_IN_PROGRESS); 1848 } 1849 1850 /* Abort a device control request. */ 1851 void 1852 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 1853 { 1854 DPRINTF(("uhci_device_ctrl_abort:\n")); 1855 uhci_abort_xfer(xfer, USBD_CANCELLED); 1856 } 1857 1858 /* Close a device control pipe. */ 1859 void 1860 uhci_device_ctrl_close(usbd_pipe_handle pipe) 1861 { 1862 } 1863 1864 /* Abort a device interrupt request. */ 1865 void 1866 uhci_device_intr_abort(usbd_xfer_handle xfer) 1867 { 1868 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1869 if (xfer->pipe->intrxfer == xfer) { 1870 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1871 xfer->pipe->intrxfer = 0; 1872 } 1873 uhci_abort_xfer(xfer, USBD_CANCELLED); 1874 } 1875 1876 /* Close a device interrupt pipe. */ 1877 void 1878 uhci_device_intr_close(usbd_pipe_handle pipe) 1879 { 1880 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1881 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1882 int i, npoll; 1883 int s; 1884 1885 /* Unlink descriptors from controller data structures. */ 1886 npoll = upipe->u.intr.npoll; 1887 s = splusb(); 1888 for (i = 0; i < npoll; i++) 1889 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 1890 splx(s); 1891 1892 /* 1893 * We now have to wait for any activity on the physical 1894 * descriptors to stop. 1895 */ 1896 usb_delay_ms(&sc->sc_bus, 2); 1897 1898 for(i = 0; i < npoll; i++) 1899 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1900 free(upipe->u.intr.qhs, M_USBHC); 1901 1902 /* XXX free other resources */ 1903 } 1904 1905 usbd_status 1906 uhci_device_request(usbd_xfer_handle xfer) 1907 { 1908 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1909 usb_device_request_t *req = &xfer->request; 1910 usbd_device_handle dev = upipe->pipe.device; 1911 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1912 int addr = dev->address; 1913 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1914 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1915 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1916 uhci_soft_qh_t *sqh; 1917 int len; 1918 u_int32_t ls; 1919 usbd_status err; 1920 int isread; 1921 int s; 1922 1923 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1924 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1925 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1926 UGETW(req->wIndex), UGETW(req->wLength), 1927 addr, endpt)); 1928 1929 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1930 isread = req->bmRequestType & UT_READ; 1931 len = UGETW(req->wLength); 1932 1933 setup = upipe->u.ctl.setup; 1934 stat = upipe->u.ctl.stat; 1935 sqh = upipe->u.ctl.sqh; 1936 1937 /* Set up data transaction */ 1938 if (len != 0) { 1939 upipe->nexttoggle = 1; 1940 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1941 &xfer->dmabuf, &data, &dataend); 1942 if (err) 1943 return (err); 1944 next = data; 1945 dataend->link.std = stat; 1946 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 1947 } else { 1948 next = stat; 1949 } 1950 upipe->u.ctl.length = len; 1951 1952 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1953 1954 setup->link.std = next; 1955 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 1956 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1957 UHCI_TD_ACTIVE); 1958 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1959 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 1960 1961 stat->link.std = NULL; 1962 stat->td.td_link = htole32(UHCI_PTR_T); 1963 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1964 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1965 stat->td.td_token = 1966 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1967 UHCI_TD_IN (0, endpt, addr, 1)); 1968 stat->td.td_buffer = htole32(0); 1969 1970 #ifdef UHCI_DEBUG 1971 if (uhcidebug > 10) { 1972 DPRINTF(("uhci_device_request: before transfer\n")); 1973 uhci_dump_tds(setup); 1974 } 1975 #endif 1976 1977 /* Set up interrupt info. */ 1978 ii->xfer = xfer; 1979 ii->stdstart = setup; 1980 ii->stdend = stat; 1981 #ifdef DIAGNOSTIC 1982 if (!ii->isdone) { 1983 printf("uhci_device_request: not done, ii=%p\n", ii); 1984 } 1985 ii->isdone = 0; 1986 #endif 1987 1988 sqh->elink = setup; 1989 sqh->qh.qh_elink = htole32(setup->physaddr); 1990 1991 s = splusb(); 1992 uhci_add_ctrl(sc, sqh); 1993 uhci_add_intr_info(sc, ii); 1994 #ifdef UHCI_DEBUG 1995 if (uhcidebug > 12) { 1996 uhci_soft_td_t *std; 1997 uhci_soft_qh_t *xqh; 1998 uhci_soft_qh_t *sxqh; 1999 int maxqh = 0; 2000 uhci_physaddr_t link; 2001 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2002 for (std = sc->sc_vframes[0].htd, link = 0; 2003 (link & UHCI_PTR_Q) == 0; 2004 std = std->link.std) { 2005 link = le32toh(std->td.td_link); 2006 uhci_dump_td(std); 2007 } 2008 sxqh = (uhci_soft_qh_t *)std; 2009 uhci_dump_qh(sxqh); 2010 for (xqh = sxqh; 2011 xqh != NULL; 2012 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2013 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2014 uhci_dump_qh(xqh); 2015 } 2016 DPRINTF(("Enqueued QH:\n")); 2017 uhci_dump_qh(sqh); 2018 uhci_dump_tds(sqh->elink); 2019 } 2020 #endif 2021 if (xfer->timeout && !sc->sc_bus.use_polling) { 2022 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2023 uhci_timeout, ii); 2024 } 2025 xfer->status = USBD_IN_PROGRESS; 2026 splx(s); 2027 2028 return (USBD_NORMAL_COMPLETION); 2029 } 2030 2031 usbd_status 2032 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2033 { 2034 usbd_status err; 2035 2036 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2037 2038 /* Put it on our queue, */ 2039 err = usb_insert_transfer(xfer); 2040 2041 /* bail out on error, */ 2042 if (err && err != USBD_IN_PROGRESS) 2043 return (err); 2044 2045 /* XXX should check inuse here */ 2046 2047 /* insert into schedule, */ 2048 uhci_device_isoc_enter(xfer); 2049 2050 /* and start if the pipe wasn't running */ 2051 if (!err) 2052 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2053 2054 return (err); 2055 } 2056 2057 void 2058 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2059 { 2060 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2061 usbd_device_handle dev = upipe->pipe.device; 2062 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2063 struct iso *iso = &upipe->u.iso; 2064 uhci_soft_td_t *std; 2065 u_int32_t buf, len, status; 2066 int s, i, next, nframes; 2067 2068 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2069 "nframes=%d\n", 2070 iso->inuse, iso->next, xfer, xfer->nframes)); 2071 2072 if (sc->sc_dying) 2073 return; 2074 2075 if (xfer->status == USBD_IN_PROGRESS) { 2076 /* This request has already been entered into the frame list */ 2077 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2078 /* XXX */ 2079 } 2080 2081 #ifdef DIAGNOSTIC 2082 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2083 printf("uhci_device_isoc_enter: overflow!\n"); 2084 #endif 2085 2086 next = iso->next; 2087 if (next == -1) { 2088 /* Not in use yet, schedule it a few frames ahead. */ 2089 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2090 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2091 } 2092 2093 xfer->status = USBD_IN_PROGRESS; 2094 UXFER(xfer)->curframe = next; 2095 2096 buf = DMAADDR(&xfer->dmabuf); 2097 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2098 UHCI_TD_ACTIVE | 2099 UHCI_TD_IOS); 2100 nframes = xfer->nframes; 2101 s = splusb(); 2102 for (i = 0; i < nframes; i++) { 2103 std = iso->stds[next]; 2104 if (++next >= UHCI_VFRAMELIST_COUNT) 2105 next = 0; 2106 len = xfer->frlengths[i]; 2107 std->td.td_buffer = htole32(buf); 2108 if (i == nframes - 1) 2109 status |= UHCI_TD_IOC; 2110 std->td.td_status = htole32(status); 2111 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2112 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2113 #ifdef UHCI_DEBUG 2114 if (uhcidebug > 5) { 2115 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2116 uhci_dump_td(std); 2117 } 2118 #endif 2119 buf += len; 2120 } 2121 iso->next = next; 2122 iso->inuse += xfer->nframes; 2123 2124 splx(s); 2125 } 2126 2127 usbd_status 2128 uhci_device_isoc_start(usbd_xfer_handle xfer) 2129 { 2130 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2131 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2132 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2133 uhci_soft_td_t *end; 2134 int s, i; 2135 2136 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2137 2138 if (sc->sc_dying) 2139 return (USBD_IOERROR); 2140 2141 #ifdef DIAGNOSTIC 2142 if (xfer->status != USBD_IN_PROGRESS) 2143 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2144 #endif 2145 2146 /* Find the last TD */ 2147 i = UXFER(xfer)->curframe + xfer->nframes; 2148 if (i >= UHCI_VFRAMELIST_COUNT) 2149 i -= UHCI_VFRAMELIST_COUNT; 2150 end = upipe->u.iso.stds[i]; 2151 2152 #ifdef DIAGNOSTIC 2153 if (end == NULL) { 2154 printf("uhci_device_isoc_start: end == NULL\n"); 2155 return (USBD_INVAL); 2156 } 2157 #endif 2158 2159 s = splusb(); 2160 2161 /* Set up interrupt info. */ 2162 ii->xfer = xfer; 2163 ii->stdstart = end; 2164 ii->stdend = end; 2165 #ifdef DIAGNOSTIC 2166 if (!ii->isdone) 2167 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2168 ii->isdone = 0; 2169 #endif 2170 uhci_add_intr_info(sc, ii); 2171 2172 splx(s); 2173 2174 return (USBD_IN_PROGRESS); 2175 } 2176 2177 void 2178 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2179 { 2180 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2181 uhci_soft_td_t **stds = upipe->u.iso.stds; 2182 uhci_soft_td_t *std; 2183 int i, n, s, nframes, maxlen, len; 2184 2185 s = splusb(); 2186 2187 /* Transfer is already done. */ 2188 if (xfer->status != USBD_NOT_STARTED && 2189 xfer->status != USBD_IN_PROGRESS) { 2190 splx(s); 2191 return; 2192 } 2193 2194 /* Give xfer the requested abort code. */ 2195 xfer->status = USBD_CANCELLED; 2196 2197 /* make hardware ignore it, */ 2198 nframes = xfer->nframes; 2199 n = UXFER(xfer)->curframe; 2200 maxlen = 0; 2201 for (i = 0; i < nframes; i++) { 2202 std = stds[n]; 2203 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2204 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 2205 if (len > maxlen) 2206 maxlen = len; 2207 if (++n >= UHCI_VFRAMELIST_COUNT) 2208 n = 0; 2209 } 2210 2211 /* and wait until we are sure the hardware has finished. */ 2212 delay(maxlen); 2213 2214 #ifdef DIAGNOSTIC 2215 UXFER(xfer)->iinfo.isdone = 1; 2216 #endif 2217 /* Run callback and remove from interrupt list. */ 2218 usb_transfer_complete(xfer); 2219 2220 splx(s); 2221 } 2222 2223 void 2224 uhci_device_isoc_close(usbd_pipe_handle pipe) 2225 { 2226 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2227 usbd_device_handle dev = upipe->pipe.device; 2228 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2229 uhci_soft_td_t *std, *vstd; 2230 struct iso *iso; 2231 int i, s; 2232 2233 /* 2234 * Make sure all TDs are marked as inactive. 2235 * Wait for completion. 2236 * Unschedule. 2237 * Deallocate. 2238 */ 2239 iso = &upipe->u.iso; 2240 2241 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2242 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2243 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2244 2245 s = splusb(); 2246 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2247 std = iso->stds[i]; 2248 for (vstd = sc->sc_vframes[i].htd; 2249 vstd != NULL && vstd->link.std != std; 2250 vstd = vstd->link.std) 2251 ; 2252 if (vstd == NULL) { 2253 /*panic*/ 2254 printf("uhci_device_isoc_close: %p not found\n", std); 2255 splx(s); 2256 return; 2257 } 2258 vstd->link = std->link; 2259 vstd->td.td_link = std->td.td_link; 2260 uhci_free_std(sc, std); 2261 } 2262 splx(s); 2263 2264 free(iso->stds, M_USBHC); 2265 } 2266 2267 usbd_status 2268 uhci_setup_isoc(usbd_pipe_handle pipe) 2269 { 2270 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2271 usbd_device_handle dev = upipe->pipe.device; 2272 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2273 int addr = upipe->pipe.device->address; 2274 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2275 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2276 uhci_soft_td_t *std, *vstd; 2277 u_int32_t token; 2278 struct iso *iso; 2279 int i, s; 2280 2281 iso = &upipe->u.iso; 2282 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2283 M_USBHC, M_WAITOK); 2284 2285 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2286 UHCI_TD_OUT(0, endpt, addr, 0); 2287 2288 /* Allocate the TDs and mark as inactive; */ 2289 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2290 std = uhci_alloc_std(sc); 2291 if (std == 0) 2292 goto bad; 2293 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2294 std->td.td_token = htole32(token); 2295 iso->stds[i] = std; 2296 } 2297 2298 /* Insert TDs into schedule. */ 2299 s = splusb(); 2300 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2301 std = iso->stds[i]; 2302 vstd = sc->sc_vframes[i].htd; 2303 std->link = vstd->link; 2304 std->td.td_link = vstd->td.td_link; 2305 vstd->link.std = std; 2306 vstd->td.td_link = htole32(std->physaddr); 2307 } 2308 splx(s); 2309 2310 iso->next = -1; 2311 iso->inuse = 0; 2312 2313 return (USBD_NORMAL_COMPLETION); 2314 2315 bad: 2316 while (--i >= 0) 2317 uhci_free_std(sc, iso->stds[i]); 2318 free(iso->stds, M_USBHC); 2319 return (USBD_NOMEM); 2320 } 2321 2322 void 2323 uhci_device_isoc_done(usbd_xfer_handle xfer) 2324 { 2325 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2326 2327 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2328 2329 if (ii->xfer != xfer) 2330 /* Not on interrupt list, ignore it. */ 2331 return; 2332 2333 #ifdef DIAGNOSTIC 2334 if (xfer->busy_free != XFER_BUSY) { 2335 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2336 xfer, xfer->busy_free); 2337 return; 2338 } 2339 2340 if (ii->stdend == NULL) { 2341 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2342 #ifdef UHCI_DEBUG 2343 uhci_dump_ii(ii); 2344 #endif 2345 return; 2346 } 2347 #endif 2348 2349 /* Turn off the interrupt since it is active even if the TD is not. */ 2350 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2351 2352 uhci_del_intr_info(ii); /* remove from active list */ 2353 } 2354 2355 void 2356 uhci_device_intr_done(usbd_xfer_handle xfer) 2357 { 2358 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2359 uhci_softc_t *sc = ii->sc; 2360 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2361 uhci_soft_qh_t *sqh; 2362 int i, npoll; 2363 2364 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2365 2366 npoll = upipe->u.intr.npoll; 2367 for(i = 0; i < npoll; i++) { 2368 sqh = upipe->u.intr.qhs[i]; 2369 sqh->elink = 0; 2370 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2371 } 2372 uhci_free_std_chain(sc, ii->stdstart, 0); 2373 2374 /* XXX Wasteful. */ 2375 if (xfer->pipe->repeat) { 2376 uhci_soft_td_t *data, *dataend; 2377 2378 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2379 2380 /* This alloc cannot fail since we freed the chain above. */ 2381 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2382 &xfer->dmabuf, &data, &dataend); 2383 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2384 2385 #ifdef UHCI_DEBUG 2386 if (uhcidebug > 10) { 2387 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2388 uhci_dump_tds(data); 2389 uhci_dump_qh(upipe->u.intr.qhs[0]); 2390 } 2391 #endif 2392 2393 ii->stdstart = data; 2394 ii->stdend = dataend; 2395 #ifdef DIAGNOSTIC 2396 if (!ii->isdone) { 2397 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2398 } 2399 ii->isdone = 0; 2400 #endif 2401 for (i = 0; i < npoll; i++) { 2402 sqh = upipe->u.intr.qhs[i]; 2403 sqh->elink = data; 2404 sqh->qh.qh_elink = htole32(data->physaddr); 2405 } 2406 xfer->status = USBD_IN_PROGRESS; 2407 /* The ii is already on the examined list, just leave it. */ 2408 } else { 2409 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2410 uhci_del_intr_info(ii); 2411 } 2412 } 2413 2414 /* Deallocate request data structures */ 2415 void 2416 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2417 { 2418 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2419 uhci_softc_t *sc = ii->sc; 2420 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2421 2422 #ifdef DIAGNOSTIC 2423 if (!(xfer->rqflags & URQ_REQUEST)) 2424 panic("uhci_ctrl_done: not a request\n"); 2425 #endif 2426 2427 uhci_del_intr_info(ii); /* remove from active list */ 2428 2429 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2430 2431 if (upipe->u.ctl.length != 0) 2432 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2433 2434 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2435 } 2436 2437 /* Deallocate request data structures */ 2438 void 2439 uhci_device_bulk_done(usbd_xfer_handle xfer) 2440 { 2441 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2442 uhci_softc_t *sc = ii->sc; 2443 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2444 2445 uhci_del_intr_info(ii); /* remove from active list */ 2446 2447 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2448 2449 uhci_free_std_chain(sc, ii->stdstart, 0); 2450 2451 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2452 } 2453 2454 /* Add interrupt QH, called with vflock. */ 2455 void 2456 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2457 { 2458 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2459 uhci_soft_qh_t *eqh; 2460 2461 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2462 2463 eqh = vf->eqh; 2464 sqh->hlink = eqh->hlink; 2465 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2466 eqh->hlink = sqh; 2467 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2468 vf->eqh = sqh; 2469 vf->bandwidth++; 2470 } 2471 2472 /* Remove interrupt QH. */ 2473 void 2474 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2475 { 2476 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2477 uhci_soft_qh_t *pqh; 2478 2479 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2480 2481 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2482 pqh->hlink = sqh->hlink; 2483 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2484 if (vf->eqh == sqh) 2485 vf->eqh = pqh; 2486 vf->bandwidth--; 2487 } 2488 2489 usbd_status 2490 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2491 { 2492 uhci_soft_qh_t *sqh; 2493 int i, npoll, s; 2494 u_int bestbw, bw, bestoffs, offs; 2495 2496 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2497 if (ival == 0) { 2498 printf("uhci_setintr: 0 interval\n"); 2499 return (USBD_INVAL); 2500 } 2501 2502 if (ival > UHCI_VFRAMELIST_COUNT) 2503 ival = UHCI_VFRAMELIST_COUNT; 2504 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2505 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2506 2507 upipe->u.intr.npoll = npoll; 2508 upipe->u.intr.qhs = 2509 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2510 2511 /* 2512 * Figure out which offset in the schedule that has most 2513 * bandwidth left over. 2514 */ 2515 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2516 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2517 for (bw = i = 0; i < npoll; i++) 2518 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2519 if (bw < bestbw) { 2520 bestbw = bw; 2521 bestoffs = offs; 2522 } 2523 } 2524 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2525 2526 for(i = 0; i < npoll; i++) { 2527 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2528 sqh->elink = 0; 2529 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2530 sqh->pos = MOD(i * ival + bestoffs); 2531 } 2532 #undef MOD 2533 2534 s = splusb(); 2535 /* Enter QHs into the controller data structures. */ 2536 for(i = 0; i < npoll; i++) 2537 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2538 splx(s); 2539 2540 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2541 return (USBD_NORMAL_COMPLETION); 2542 } 2543 2544 /* Open a new pipe. */ 2545 usbd_status 2546 uhci_open(usbd_pipe_handle pipe) 2547 { 2548 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2549 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2550 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2551 usbd_status err; 2552 int ival; 2553 2554 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2555 pipe, pipe->device->address, 2556 ed->bEndpointAddress, sc->sc_addr)); 2557 2558 upipe->aborting = 0; 2559 upipe->nexttoggle = 0; 2560 2561 if (pipe->device->address == sc->sc_addr) { 2562 switch (ed->bEndpointAddress) { 2563 case USB_CONTROL_ENDPOINT: 2564 pipe->methods = &uhci_root_ctrl_methods; 2565 break; 2566 case UE_DIR_IN | UHCI_INTR_ENDPT: 2567 pipe->methods = &uhci_root_intr_methods; 2568 break; 2569 default: 2570 return (USBD_INVAL); 2571 } 2572 } else { 2573 switch (ed->bmAttributes & UE_XFERTYPE) { 2574 case UE_CONTROL: 2575 pipe->methods = &uhci_device_ctrl_methods; 2576 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2577 if (upipe->u.ctl.sqh == NULL) 2578 goto bad; 2579 upipe->u.ctl.setup = uhci_alloc_std(sc); 2580 if (upipe->u.ctl.setup == NULL) { 2581 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2582 goto bad; 2583 } 2584 upipe->u.ctl.stat = uhci_alloc_std(sc); 2585 if (upipe->u.ctl.stat == NULL) { 2586 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2587 uhci_free_std(sc, upipe->u.ctl.setup); 2588 goto bad; 2589 } 2590 err = usb_allocmem(&sc->sc_bus, 2591 sizeof(usb_device_request_t), 2592 0, &upipe->u.ctl.reqdma); 2593 if (err) { 2594 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2595 uhci_free_std(sc, upipe->u.ctl.setup); 2596 uhci_free_std(sc, upipe->u.ctl.stat); 2597 goto bad; 2598 } 2599 break; 2600 case UE_INTERRUPT: 2601 pipe->methods = &uhci_device_intr_methods; 2602 ival = pipe->interval; 2603 if (ival == USBD_DEFAULT_INTERVAL) 2604 ival = ed->bInterval; 2605 return (uhci_device_setintr(sc, upipe, ival)); 2606 case UE_ISOCHRONOUS: 2607 pipe->methods = &uhci_device_isoc_methods; 2608 return (uhci_setup_isoc(pipe)); 2609 case UE_BULK: 2610 pipe->methods = &uhci_device_bulk_methods; 2611 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2612 if (upipe->u.bulk.sqh == NULL) 2613 goto bad; 2614 break; 2615 } 2616 } 2617 return (USBD_NORMAL_COMPLETION); 2618 2619 bad: 2620 return (USBD_NOMEM); 2621 } 2622 2623 /* 2624 * Data structures and routines to emulate the root hub. 2625 */ 2626 usb_device_descriptor_t uhci_devd = { 2627 USB_DEVICE_DESCRIPTOR_SIZE, 2628 UDESC_DEVICE, /* type */ 2629 {0x00, 0x01}, /* USB version */ 2630 UDCLASS_HUB, /* class */ 2631 UDSUBCLASS_HUB, /* subclass */ 2632 0, /* protocol */ 2633 64, /* max packet */ 2634 {0},{0},{0x00,0x01}, /* device id */ 2635 1,2,0, /* string indicies */ 2636 1 /* # of configurations */ 2637 }; 2638 2639 usb_config_descriptor_t uhci_confd = { 2640 USB_CONFIG_DESCRIPTOR_SIZE, 2641 UDESC_CONFIG, 2642 {USB_CONFIG_DESCRIPTOR_SIZE + 2643 USB_INTERFACE_DESCRIPTOR_SIZE + 2644 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2645 1, 2646 1, 2647 0, 2648 UC_SELF_POWERED, 2649 0 /* max power */ 2650 }; 2651 2652 usb_interface_descriptor_t uhci_ifcd = { 2653 USB_INTERFACE_DESCRIPTOR_SIZE, 2654 UDESC_INTERFACE, 2655 0, 2656 0, 2657 1, 2658 UICLASS_HUB, 2659 UISUBCLASS_HUB, 2660 0, 2661 0 2662 }; 2663 2664 usb_endpoint_descriptor_t uhci_endpd = { 2665 USB_ENDPOINT_DESCRIPTOR_SIZE, 2666 UDESC_ENDPOINT, 2667 UE_DIR_IN | UHCI_INTR_ENDPT, 2668 UE_INTERRUPT, 2669 {8}, 2670 255 2671 }; 2672 2673 usb_hub_descriptor_t uhci_hubd_piix = { 2674 USB_HUB_DESCRIPTOR_SIZE, 2675 UDESC_HUB, 2676 2, 2677 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2678 50, /* power on to power good */ 2679 0, 2680 { 0x00 }, /* both ports are removable */ 2681 }; 2682 2683 int 2684 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2685 { 2686 int i; 2687 2688 if (l == 0) 2689 return (0); 2690 p->bLength = 2 * strlen(s) + 2; 2691 if (l == 1) 2692 return (1); 2693 p->bDescriptorType = UDESC_STRING; 2694 l -= 2; 2695 for (i = 0; s[i] && l > 1; i++, l -= 2) 2696 USETW2(p->bString[i], 0, s[i]); 2697 return (2*i+2); 2698 } 2699 2700 /* 2701 * Simulate a hardware hub by handling all the necessary requests. 2702 */ 2703 usbd_status 2704 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2705 { 2706 usbd_status err; 2707 2708 /* Insert last in queue. */ 2709 err = usb_insert_transfer(xfer); 2710 if (err) 2711 return (err); 2712 2713 /* 2714 * Pipe isn't running (otherwise err would be USBD_INPROG), 2715 * so start it first. 2716 */ 2717 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2718 } 2719 2720 usbd_status 2721 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2722 { 2723 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2724 usb_device_request_t *req; 2725 void *buf = NULL; 2726 int port, x; 2727 int s, len, value, index, status, change, l, totlen = 0; 2728 usb_port_status_t ps; 2729 usbd_status err; 2730 2731 if (sc->sc_dying) 2732 return (USBD_IOERROR); 2733 2734 #ifdef DIAGNOSTIC 2735 if (!(xfer->rqflags & URQ_REQUEST)) 2736 panic("uhci_root_ctrl_transfer: not a request\n"); 2737 #endif 2738 req = &xfer->request; 2739 2740 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2741 req->bmRequestType, req->bRequest)); 2742 2743 len = UGETW(req->wLength); 2744 value = UGETW(req->wValue); 2745 index = UGETW(req->wIndex); 2746 2747 if (len != 0) 2748 buf = KERNADDR(&xfer->dmabuf); 2749 2750 #define C(x,y) ((x) | ((y) << 8)) 2751 switch(C(req->bRequest, req->bmRequestType)) { 2752 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2753 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2754 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2755 /* 2756 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2757 * for the integrated root hub. 2758 */ 2759 break; 2760 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2761 if (len > 0) { 2762 *(u_int8_t *)buf = sc->sc_conf; 2763 totlen = 1; 2764 } 2765 break; 2766 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2767 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2768 switch(value >> 8) { 2769 case UDESC_DEVICE: 2770 if ((value & 0xff) != 0) { 2771 err = USBD_IOERROR; 2772 goto ret; 2773 } 2774 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2775 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2776 memcpy(buf, &uhci_devd, l); 2777 break; 2778 case UDESC_CONFIG: 2779 if ((value & 0xff) != 0) { 2780 err = USBD_IOERROR; 2781 goto ret; 2782 } 2783 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2784 memcpy(buf, &uhci_confd, l); 2785 buf = (char *)buf + l; 2786 len -= l; 2787 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2788 totlen += l; 2789 memcpy(buf, &uhci_ifcd, l); 2790 buf = (char *)buf + l; 2791 len -= l; 2792 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2793 totlen += l; 2794 memcpy(buf, &uhci_endpd, l); 2795 break; 2796 case UDESC_STRING: 2797 if (len == 0) 2798 break; 2799 *(u_int8_t *)buf = 0; 2800 totlen = 1; 2801 switch (value & 0xff) { 2802 case 1: /* Vendor */ 2803 totlen = uhci_str(buf, len, sc->sc_vendor); 2804 break; 2805 case 2: /* Product */ 2806 totlen = uhci_str(buf, len, "UHCI root hub"); 2807 break; 2808 } 2809 break; 2810 default: 2811 err = USBD_IOERROR; 2812 goto ret; 2813 } 2814 break; 2815 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2816 if (len > 0) { 2817 *(u_int8_t *)buf = 0; 2818 totlen = 1; 2819 } 2820 break; 2821 case C(UR_GET_STATUS, UT_READ_DEVICE): 2822 if (len > 1) { 2823 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2824 totlen = 2; 2825 } 2826 break; 2827 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2828 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2829 if (len > 1) { 2830 USETW(((usb_status_t *)buf)->wStatus, 0); 2831 totlen = 2; 2832 } 2833 break; 2834 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2835 if (value >= USB_MAX_DEVICES) { 2836 err = USBD_IOERROR; 2837 goto ret; 2838 } 2839 sc->sc_addr = value; 2840 break; 2841 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2842 if (value != 0 && value != 1) { 2843 err = USBD_IOERROR; 2844 goto ret; 2845 } 2846 sc->sc_conf = value; 2847 break; 2848 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2849 break; 2850 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2851 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2852 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2853 err = USBD_IOERROR; 2854 goto ret; 2855 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2856 break; 2857 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2858 break; 2859 /* Hub requests */ 2860 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2861 break; 2862 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2863 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2864 "port=%d feature=%d\n", 2865 index, value)); 2866 if (index == 1) 2867 port = UHCI_PORTSC1; 2868 else if (index == 2) 2869 port = UHCI_PORTSC2; 2870 else { 2871 err = USBD_IOERROR; 2872 goto ret; 2873 } 2874 switch(value) { 2875 case UHF_PORT_ENABLE: 2876 x = UREAD2(sc, port); 2877 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2878 break; 2879 case UHF_PORT_SUSPEND: 2880 x = UREAD2(sc, port); 2881 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2882 break; 2883 case UHF_PORT_RESET: 2884 x = UREAD2(sc, port); 2885 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2886 break; 2887 case UHF_C_PORT_CONNECTION: 2888 x = UREAD2(sc, port); 2889 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2890 break; 2891 case UHF_C_PORT_ENABLE: 2892 x = UREAD2(sc, port); 2893 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2894 break; 2895 case UHF_C_PORT_OVER_CURRENT: 2896 x = UREAD2(sc, port); 2897 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2898 break; 2899 case UHF_C_PORT_RESET: 2900 sc->sc_isreset = 0; 2901 err = USBD_NORMAL_COMPLETION; 2902 goto ret; 2903 case UHF_PORT_CONNECTION: 2904 case UHF_PORT_OVER_CURRENT: 2905 case UHF_PORT_POWER: 2906 case UHF_PORT_LOW_SPEED: 2907 case UHF_C_PORT_SUSPEND: 2908 default: 2909 err = USBD_IOERROR; 2910 goto ret; 2911 } 2912 break; 2913 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2914 if (index == 1) 2915 port = UHCI_PORTSC1; 2916 else if (index == 2) 2917 port = UHCI_PORTSC2; 2918 else { 2919 err = USBD_IOERROR; 2920 goto ret; 2921 } 2922 if (len > 0) { 2923 *(u_int8_t *)buf = 2924 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2925 UHCI_PORTSC_LS_SHIFT; 2926 totlen = 1; 2927 } 2928 break; 2929 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2930 if (value != 0) { 2931 err = USBD_IOERROR; 2932 goto ret; 2933 } 2934 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2935 totlen = l; 2936 memcpy(buf, &uhci_hubd_piix, l); 2937 break; 2938 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2939 if (len != 4) { 2940 err = USBD_IOERROR; 2941 goto ret; 2942 } 2943 memset(buf, 0, len); 2944 totlen = len; 2945 break; 2946 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2947 if (index == 1) 2948 port = UHCI_PORTSC1; 2949 else if (index == 2) 2950 port = UHCI_PORTSC2; 2951 else { 2952 err = USBD_IOERROR; 2953 goto ret; 2954 } 2955 if (len != 4) { 2956 err = USBD_IOERROR; 2957 goto ret; 2958 } 2959 x = UREAD2(sc, port); 2960 status = change = 0; 2961 if (x & UHCI_PORTSC_CCS ) 2962 status |= UPS_CURRENT_CONNECT_STATUS; 2963 if (x & UHCI_PORTSC_CSC ) 2964 change |= UPS_C_CONNECT_STATUS; 2965 if (x & UHCI_PORTSC_PE ) 2966 status |= UPS_PORT_ENABLED; 2967 if (x & UHCI_PORTSC_POEDC) 2968 change |= UPS_C_PORT_ENABLED; 2969 if (x & UHCI_PORTSC_OCI ) 2970 status |= UPS_OVERCURRENT_INDICATOR; 2971 if (x & UHCI_PORTSC_OCIC ) 2972 change |= UPS_C_OVERCURRENT_INDICATOR; 2973 if (x & UHCI_PORTSC_SUSP ) 2974 status |= UPS_SUSPEND; 2975 if (x & UHCI_PORTSC_LSDA ) 2976 status |= UPS_LOW_SPEED; 2977 status |= UPS_PORT_POWER; 2978 if (sc->sc_isreset) 2979 change |= UPS_C_PORT_RESET; 2980 USETW(ps.wPortStatus, status); 2981 USETW(ps.wPortChange, change); 2982 l = min(len, sizeof ps); 2983 memcpy(buf, &ps, l); 2984 totlen = l; 2985 break; 2986 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2987 err = USBD_IOERROR; 2988 goto ret; 2989 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2990 break; 2991 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2992 if (index == 1) 2993 port = UHCI_PORTSC1; 2994 else if (index == 2) 2995 port = UHCI_PORTSC2; 2996 else { 2997 err = USBD_IOERROR; 2998 goto ret; 2999 } 3000 switch(value) { 3001 case UHF_PORT_ENABLE: 3002 x = UREAD2(sc, port); 3003 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3004 break; 3005 case UHF_PORT_SUSPEND: 3006 x = UREAD2(sc, port); 3007 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3008 break; 3009 case UHF_PORT_RESET: 3010 x = UREAD2(sc, port); 3011 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3012 usb_delay_ms(&sc->sc_bus, 10); 3013 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3014 delay(100); 3015 x = UREAD2(sc, port); 3016 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3017 delay(100); 3018 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3019 index, UREAD2(sc, port))); 3020 sc->sc_isreset = 1; 3021 break; 3022 case UHF_PORT_POWER: 3023 /* Pretend we turned on power */ 3024 err = USBD_NORMAL_COMPLETION; 3025 goto ret; 3026 case UHF_C_PORT_CONNECTION: 3027 case UHF_C_PORT_ENABLE: 3028 case UHF_C_PORT_OVER_CURRENT: 3029 case UHF_PORT_CONNECTION: 3030 case UHF_PORT_OVER_CURRENT: 3031 case UHF_PORT_LOW_SPEED: 3032 case UHF_C_PORT_SUSPEND: 3033 case UHF_C_PORT_RESET: 3034 default: 3035 err = USBD_IOERROR; 3036 goto ret; 3037 } 3038 break; 3039 default: 3040 err = USBD_IOERROR; 3041 goto ret; 3042 } 3043 xfer->actlen = totlen; 3044 err = USBD_NORMAL_COMPLETION; 3045 ret: 3046 xfer->status = err; 3047 s = splusb(); 3048 usb_transfer_complete(xfer); 3049 splx(s); 3050 return (USBD_IN_PROGRESS); 3051 } 3052 3053 /* Abort a root control request. */ 3054 void 3055 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3056 { 3057 /* Nothing to do, all transfers are synchronous. */ 3058 } 3059 3060 /* Close the root pipe. */ 3061 void 3062 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3063 { 3064 DPRINTF(("uhci_root_ctrl_close\n")); 3065 } 3066 3067 /* Abort a root interrupt request. */ 3068 void 3069 uhci_root_intr_abort(usbd_xfer_handle xfer) 3070 { 3071 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3072 3073 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3074 sc->sc_intr_xfer = NULL; 3075 3076 if (xfer->pipe->intrxfer == xfer) { 3077 DPRINTF(("uhci_root_intr_abort: remove\n")); 3078 xfer->pipe->intrxfer = 0; 3079 } 3080 xfer->status = USBD_CANCELLED; 3081 #ifdef DIAGNOSTIC 3082 UXFER(xfer)->iinfo.isdone = 1; 3083 #endif 3084 usb_transfer_complete(xfer); 3085 } 3086 3087 usbd_status 3088 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3089 { 3090 usbd_status err; 3091 3092 /* Insert last in queue. */ 3093 err = usb_insert_transfer(xfer); 3094 if (err) 3095 return (err); 3096 3097 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3098 * start first 3099 */ 3100 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3101 } 3102 3103 /* Start a transfer on the root interrupt pipe */ 3104 usbd_status 3105 uhci_root_intr_start(usbd_xfer_handle xfer) 3106 { 3107 usbd_pipe_handle pipe = xfer->pipe; 3108 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3109 3110 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3111 xfer, xfer->length, xfer->flags)); 3112 3113 if (sc->sc_dying) 3114 return (USBD_IOERROR); 3115 3116 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3117 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3118 sc->sc_intr_xfer = xfer; 3119 return (USBD_IN_PROGRESS); 3120 } 3121 3122 /* Close the root interrupt pipe. */ 3123 void 3124 uhci_root_intr_close(usbd_pipe_handle pipe) 3125 { 3126 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3127 3128 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3129 sc->sc_intr_xfer = NULL; 3130 DPRINTF(("uhci_root_intr_close\n")); 3131 } 3132