uhci.c revision 1.82
1 /* $NetBSD: uhci.c,v 1.82 2000/01/26 10:04:38 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 (augustss (at) carlstedt.se) 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 #define DPRINTF(x) if (uhcidebug) printf x 97 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 98 int uhcidebug = 0; 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 /* 105 * The UHCI controller is little endian, so on big endian machines 106 * the data strored in memory needs to be swapped. 107 */ 108 #if BYTE_ORDER == BIG_ENDIAN 109 #define LE(x) (bswap32(x)) 110 #else 111 #define LE(x) (x) 112 #endif 113 114 struct uhci_pipe { 115 struct usbd_pipe pipe; 116 uhci_intr_info_t *iinfo; 117 int nexttoggle; 118 /* Info needed for different pipe kinds. */ 119 union { 120 /* Control pipe */ 121 struct { 122 uhci_soft_qh_t *sqh; 123 usb_dma_t reqdma; 124 uhci_soft_td_t *setup, *stat; 125 u_int length; 126 } ctl; 127 /* Interrupt pipe */ 128 struct { 129 int npoll; 130 uhci_soft_qh_t **qhs; 131 } intr; 132 /* Bulk pipe */ 133 struct { 134 uhci_soft_qh_t *sqh; 135 u_int length; 136 int isread; 137 } bulk; 138 /* Iso pipe */ 139 struct iso { 140 uhci_soft_td_t **stds; 141 int next, inuse; 142 } iso; 143 } u; 144 }; 145 146 /* 147 * The uhci_intr_info free list can be global since they contain 148 * no dma specific data. The other free lists do. 149 */ 150 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 151 152 static void uhci_busreset __P((uhci_softc_t *)); 153 static void uhci_shutdown __P((void *v)); 154 static void uhci_power __P((int, void *)); 155 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 156 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 157 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 158 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 159 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 160 static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 161 static void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 162 #if 0 163 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 164 uhci_intr_info_t *)); 165 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 166 #endif 167 168 static void uhci_free_std_chain __P((uhci_softc_t *, 169 uhci_soft_td_t *, uhci_soft_td_t *)); 170 static usbd_status uhci_alloc_std_chain __P((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_timo __P((void *)); 174 static void uhci_waitintr __P((uhci_softc_t *, 175 usbd_xfer_handle)); 176 static void uhci_check_intr __P((uhci_softc_t *, 177 uhci_intr_info_t *)); 178 static void uhci_idone __P((uhci_intr_info_t *)); 179 static void uhci_abort_xfer __P((usbd_xfer_handle, 180 usbd_status status)); 181 static void uhci_abort_xfer_end __P((void *v)); 182 static void uhci_timeout __P((void *)); 183 static void uhci_lock_frames __P((uhci_softc_t *)); 184 static void uhci_unlock_frames __P((uhci_softc_t *)); 185 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 186 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 187 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 188 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 189 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 190 191 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 192 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 193 194 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 195 u_int32_t)); 196 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 197 198 static usbd_xfer_handle uhci_allocx __P((struct usbd_bus *)); 199 static void uhci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 200 201 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 202 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 203 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 204 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 205 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 206 207 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 208 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 209 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 210 static void uhci_device_intr_close __P((usbd_pipe_handle)); 211 static void uhci_device_intr_done __P((usbd_xfer_handle)); 212 213 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 214 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 215 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 216 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 217 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 218 219 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 220 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 221 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 222 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 223 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 224 225 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 226 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 227 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 228 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 229 230 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 231 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 232 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 233 static void uhci_root_intr_close __P((usbd_pipe_handle)); 234 static void uhci_root_intr_done __P((usbd_xfer_handle)); 235 236 static usbd_status uhci_open __P((usbd_pipe_handle)); 237 static void uhci_poll __P((struct usbd_bus *)); 238 239 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 240 241 static void uhci_add_intr __P((uhci_softc_t *, int, 242 uhci_soft_qh_t *)); 243 static void uhci_remove_intr __P((uhci_softc_t *, int, 244 uhci_soft_qh_t *)); 245 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 246 struct uhci_pipe *pipe, int ival)); 247 248 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 249 static void uhci_noop __P((usbd_pipe_handle pipe)); 250 251 #ifdef UHCI_DEBUG 252 static void uhci_dumpregs __P((uhci_softc_t *)); 253 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 254 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 255 static void uhci_dump_tds __P((uhci_soft_td_t *)); 256 static void uhci_dump_td __P((uhci_soft_td_t *)); 257 #endif 258 259 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 260 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 261 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 262 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 263 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 264 265 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 266 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 267 268 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 269 270 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 271 272 #define UHCI_INTR_ENDPT 1 273 274 struct usbd_bus_methods uhci_bus_methods = { 275 uhci_open, 276 uhci_poll, 277 uhci_allocm, 278 uhci_freem, 279 uhci_allocx, 280 uhci_freex, 281 }; 282 283 struct usbd_pipe_methods uhci_root_ctrl_methods = { 284 uhci_root_ctrl_transfer, 285 uhci_root_ctrl_start, 286 uhci_root_ctrl_abort, 287 uhci_root_ctrl_close, 288 uhci_noop, 289 0, 290 }; 291 292 struct usbd_pipe_methods uhci_root_intr_methods = { 293 uhci_root_intr_transfer, 294 uhci_root_intr_start, 295 uhci_root_intr_abort, 296 uhci_root_intr_close, 297 uhci_noop, 298 uhci_root_intr_done, 299 }; 300 301 struct usbd_pipe_methods uhci_device_ctrl_methods = { 302 uhci_device_ctrl_transfer, 303 uhci_device_ctrl_start, 304 uhci_device_ctrl_abort, 305 uhci_device_ctrl_close, 306 uhci_noop, 307 uhci_device_ctrl_done, 308 }; 309 310 struct usbd_pipe_methods uhci_device_intr_methods = { 311 uhci_device_intr_transfer, 312 uhci_device_intr_start, 313 uhci_device_intr_abort, 314 uhci_device_intr_close, 315 uhci_device_clear_toggle, 316 uhci_device_intr_done, 317 }; 318 319 struct usbd_pipe_methods uhci_device_bulk_methods = { 320 uhci_device_bulk_transfer, 321 uhci_device_bulk_start, 322 uhci_device_bulk_abort, 323 uhci_device_bulk_close, 324 uhci_device_clear_toggle, 325 uhci_device_bulk_done, 326 }; 327 328 struct usbd_pipe_methods uhci_device_isoc_methods = { 329 uhci_device_isoc_transfer, 330 uhci_device_isoc_start, 331 uhci_device_isoc_abort, 332 uhci_device_isoc_close, 333 uhci_noop, 334 uhci_device_isoc_done, 335 }; 336 337 void 338 uhci_busreset(sc) 339 uhci_softc_t *sc; 340 { 341 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 342 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 343 UHCICMD(sc, 0); /* do nothing */ 344 } 345 346 usbd_status 347 uhci_init(sc) 348 uhci_softc_t *sc; 349 { 350 usbd_status err; 351 int i, j; 352 uhci_soft_qh_t *csqh, *bsqh, *sqh; 353 uhci_soft_td_t *std; 354 355 DPRINTFN(1,("uhci_init: start\n")); 356 357 #ifdef UHCI_DEBUG 358 if (uhcidebug > 2) 359 uhci_dumpregs(sc); 360 #endif 361 362 uhci_run(sc, 0); /* stop the controller */ 363 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 364 365 uhci_busreset(sc); 366 367 /* Allocate and initialize real frame array. */ 368 err = usb_allocmem(&sc->sc_bus, 369 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 370 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 371 if (err) 372 return (err); 373 sc->sc_pframes = KERNADDR(&sc->sc_dma); 374 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 375 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 376 377 /* Allocate the dummy QH where bulk traffic will be queued. */ 378 bsqh = uhci_alloc_sqh(sc); 379 if (bsqh == NULL) 380 return (USBD_NOMEM); 381 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 382 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 383 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 384 385 /* Allocate the dummy QH where control traffic will be queued. */ 386 csqh = uhci_alloc_sqh(sc); 387 if (csqh == NULL) 388 return (USBD_NOMEM); 389 csqh->hlink = bsqh; 390 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 391 csqh->qh.qh_elink = LE(UHCI_PTR_T); 392 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 393 394 /* 395 * Make all (virtual) frame list pointers point to the interrupt 396 * queue heads and the interrupt queue heads at the control 397 * queue head and point the physical frame list to the virtual. 398 */ 399 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 400 std = uhci_alloc_std(sc); 401 sqh = uhci_alloc_sqh(sc); 402 if (std == NULL || sqh == NULL) 403 return (USBD_NOMEM); 404 std->link.sqh = sqh; 405 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 406 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 407 std->td.td_token = LE(0); 408 std->td.td_buffer = LE(0); 409 sqh->hlink = csqh; 410 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 411 sqh->elink = 0; 412 sqh->qh.qh_elink = LE(UHCI_PTR_T); 413 sc->sc_vframes[i].htd = std; 414 sc->sc_vframes[i].etd = std; 415 sc->sc_vframes[i].hqh = sqh; 416 sc->sc_vframes[i].eqh = sqh; 417 for (j = i; 418 j < UHCI_FRAMELIST_COUNT; 419 j += UHCI_VFRAMELIST_COUNT) 420 sc->sc_pframes[j] = LE(std->physaddr); 421 } 422 423 LIST_INIT(&sc->sc_intrhead); 424 425 SIMPLEQ_INIT(&sc->sc_free_xfers); 426 427 /* Set up the bus struct. */ 428 sc->sc_bus.methods = &uhci_bus_methods; 429 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 430 431 sc->sc_suspend = PWR_RESUME; 432 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 433 434 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 435 436 DPRINTFN(1,("uhci_init: enabling\n")); 437 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 438 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 439 440 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 441 442 return (uhci_run(sc, 1)); /* and here we go... */ 443 } 444 445 #if defined(__NetBSD__) || defined(__OpenBSD__) 446 int 447 uhci_activate(self, act) 448 device_ptr_t self; 449 enum devact act; 450 { 451 struct uhci_softc *sc = (struct uhci_softc *)self; 452 int rv = 0; 453 454 switch (act) { 455 case DVACT_ACTIVATE: 456 return (EOPNOTSUPP); 457 break; 458 459 case DVACT_DEACTIVATE: 460 if (sc->sc_child != NULL) 461 rv = config_deactivate(sc->sc_child); 462 break; 463 } 464 return (rv); 465 } 466 467 int 468 uhci_detach(sc, flags) 469 struct uhci_softc *sc; 470 int flags; 471 { 472 usbd_xfer_handle xfer; 473 int rv = 0; 474 475 if (sc->sc_child != NULL) 476 rv = config_detach(sc->sc_child, flags); 477 478 if (rv != 0) 479 return (rv); 480 481 powerhook_disestablish(sc->sc_powerhook); 482 shutdownhook_disestablish(sc->sc_shutdownhook); 483 484 /* Free all xfers associated with this HC. */ 485 for (;;) { 486 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 487 if (xfer == NULL) 488 break; 489 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 490 free(xfer, M_USB); 491 } 492 493 /* XXX free other data structures XXX */ 494 495 return (rv); 496 } 497 #endif 498 499 usbd_status 500 uhci_allocm(bus, dma, size) 501 struct usbd_bus *bus; 502 usb_dma_t *dma; 503 u_int32_t size; 504 { 505 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 506 dma)); 507 } 508 509 void 510 uhci_freem(bus, dma) 511 struct usbd_bus *bus; 512 usb_dma_t *dma; 513 { 514 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 515 } 516 517 usbd_xfer_handle 518 uhci_allocx(bus) 519 struct usbd_bus *bus; 520 { 521 struct uhci_softc *sc = (struct uhci_softc *)bus; 522 usbd_xfer_handle xfer; 523 524 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 525 if (xfer != NULL) 526 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 527 else 528 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 529 if (xfer != NULL) 530 memset(xfer, 0, sizeof *xfer); 531 return (xfer); 532 } 533 534 void 535 uhci_freex(bus, xfer) 536 struct usbd_bus *bus; 537 usbd_xfer_handle xfer; 538 { 539 struct uhci_softc *sc = (struct uhci_softc *)bus; 540 541 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 542 } 543 544 /* 545 * Shut down the controller when the system is going down. 546 */ 547 void 548 uhci_shutdown(v) 549 void *v; 550 { 551 uhci_softc_t *sc = v; 552 553 DPRINTF(("uhci_shutdown: stopping the HC\n")); 554 uhci_run(sc, 0); /* stop the controller */ 555 } 556 557 /* 558 * Handle suspend/resume. 559 * 560 * We need to switch to polling mode here, because this routine is 561 * called from an intterupt context. This is all right since we 562 * are almost suspended anyway. 563 */ 564 void 565 uhci_power(why, v) 566 int why; 567 void *v; 568 { 569 uhci_softc_t *sc = v; 570 int cmd; 571 int s; 572 573 s = splusb(); 574 cmd = UREAD2(sc, UHCI_CMD); 575 576 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 577 sc, why, sc->sc_suspend, cmd)); 578 579 if (why != PWR_RESUME) { 580 #ifdef UHCI_DEBUG 581 if (uhcidebug > 2) 582 uhci_dumpregs(sc); 583 #endif 584 if (sc->sc_has_timo != NULL) 585 usb_untimeout(uhci_timo, sc->sc_has_timo, 586 sc->sc_has_timo->timo_handle); 587 sc->sc_bus.use_polling++; 588 uhci_run(sc, 0); /* stop the controller */ 589 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 590 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 591 sc->sc_suspend = why; 592 sc->sc_bus.use_polling--; 593 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 594 } else { 595 /* 596 * XXX We should really do much more here in case the 597 * controller registers have been lost and BIOS has 598 * not restored them. 599 */ 600 #ifdef DIAGNOSTIC 601 if (sc->sc_suspend == PWR_RESUME) 602 printf("uhci_power: weird, resume without suspend.\n"); 603 #endif 604 sc->sc_bus.use_polling++; 605 sc->sc_suspend = why; 606 if (cmd & UHCI_CMD_RS) 607 uhci_run(sc, 0); /* in case BIOS has started it */ 608 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 609 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 610 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 611 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 612 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 613 uhci_run(sc, 1); /* and start traffic again */ 614 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 615 sc->sc_bus.use_polling--; 616 if (sc->sc_has_timo != NULL) 617 usb_timeout(uhci_timo, sc->sc_has_timo, 618 sc->sc_ival, sc->sc_has_timo->timo_handle); 619 #ifdef UHCI_DEBUG 620 if (uhcidebug > 2) 621 uhci_dumpregs(sc); 622 #endif 623 } 624 splx(s); 625 } 626 627 #ifdef UHCI_DEBUG 628 static void 629 uhci_dumpregs(sc) 630 uhci_softc_t *sc; 631 { 632 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 633 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 634 USBDEVNAME(sc->sc_bus.bdev), 635 UREAD2(sc, UHCI_CMD), 636 UREAD2(sc, UHCI_STS), 637 UREAD2(sc, UHCI_INTR), 638 UREAD2(sc, UHCI_FRNUM), 639 UREAD4(sc, UHCI_FLBASEADDR), 640 UREAD1(sc, UHCI_SOF), 641 UREAD2(sc, UHCI_PORTSC1), 642 UREAD2(sc, UHCI_PORTSC2))); 643 } 644 645 void 646 uhci_dump_td(p) 647 uhci_soft_td_t *p; 648 { 649 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 650 "token=0x%08lx buffer=0x%08lx\n", 651 p, (long)p->physaddr, 652 (long)LE(p->td.td_link), 653 (long)LE(p->td.td_status), 654 (long)LE(p->td.td_token), 655 (long)LE(p->td.td_buffer))); 656 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 657 "D=%d,maxlen=%d\n", 658 (int)LE(p->td.td_link), 659 "\20\1T\2Q\3VF", 660 (int)LE(p->td.td_status), 661 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 662 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 663 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 664 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 665 UHCI_TD_GET_PID(LE(p->td.td_token)), 666 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 667 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 668 UHCI_TD_GET_DT(LE(p->td.td_token)), 669 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 670 } 671 672 void 673 uhci_dump_qh(sqh) 674 uhci_soft_qh_t *sqh; 675 { 676 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 677 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 678 } 679 680 681 #if 0 682 void 683 uhci_dump() 684 { 685 uhci_softc_t *sc = uhci; 686 687 uhci_dumpregs(sc); 688 printf("intrs=%d\n", sc->sc_bus.no_intrs); 689 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 690 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 691 } 692 #endif 693 694 695 void 696 uhci_dump_qhs(sqh) 697 uhci_soft_qh_t *sqh; 698 { 699 uhci_dump_qh(sqh); 700 701 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 702 * Traverses sideways first, then down. 703 * 704 * QH1 705 * QH2 706 * No QH 707 * TD2.1 708 * TD2.2 709 * TD1.1 710 * etc. 711 * 712 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 713 */ 714 715 716 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 717 uhci_dump_qhs(sqh->hlink); 718 else 719 DPRINTF(("No QH\n")); 720 721 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 722 uhci_dump_tds(sqh->elink); 723 else 724 DPRINTF(("No TD\n")); 725 } 726 727 void 728 uhci_dump_tds(std) 729 uhci_soft_td_t *std; 730 { 731 uhci_soft_td_t *td; 732 733 for(td = std; td != NULL; td = td->link.std) { 734 uhci_dump_td(td); 735 736 /* Check whether the link pointer in this TD marks 737 * the link pointer as end of queue. This avoids 738 * printing the free list in case the queue/TD has 739 * already been moved there (seatbelt). 740 */ 741 if (td->td.td_link & UHCI_PTR_T || 742 td->td.td_link == 0) 743 break; 744 } 745 } 746 #endif 747 748 /* 749 * This routine is executed periodically and simulates interrupts 750 * from the root controller interrupt pipe for port status change. 751 */ 752 void 753 uhci_timo(addr) 754 void *addr; 755 { 756 usbd_xfer_handle xfer = addr; 757 usbd_pipe_handle pipe = xfer->pipe; 758 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 759 int s; 760 u_char *p; 761 762 DPRINTFN(20, ("uhci_timo\n")); 763 764 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 765 766 p = KERNADDR(&xfer->dmabuf); 767 p[0] = 0; 768 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 769 p[0] |= 1<<1; 770 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 771 p[0] |= 1<<2; 772 if (p[0] == 0) 773 /* No change, try again in a while */ 774 return; 775 776 xfer->actlen = 1; 777 xfer->status = USBD_NORMAL_COMPLETION; 778 s = splusb(); 779 xfer->hcpriv = 0; 780 xfer->device->bus->intr_context++; 781 usb_transfer_complete(xfer); 782 xfer->device->bus->intr_context--; 783 splx(s); 784 } 785 786 void 787 uhci_root_intr_done(xfer) 788 usbd_xfer_handle xfer; 789 { 790 } 791 792 void 793 uhci_lock_frames(sc) 794 uhci_softc_t *sc; 795 { 796 int s = splusb(); 797 798 while (sc->sc_vflock & UHCI_HAS_LOCK) { 799 sc->sc_vflock |= UHCI_WANT_LOCK; 800 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 801 } 802 sc->sc_vflock = UHCI_HAS_LOCK; 803 splx(s); 804 } 805 806 void 807 uhci_unlock_frames(sc) 808 uhci_softc_t *sc; 809 { 810 int s = splusb(); 811 812 sc->sc_vflock &= ~UHCI_HAS_LOCK; 813 if (sc->sc_vflock & UHCI_WANT_LOCK) 814 wakeup(&sc->sc_vflock); 815 splx(s); 816 } 817 818 /* 819 * Allocate an interrupt information struct. A free list is kept 820 * for fast allocation. 821 */ 822 uhci_intr_info_t * 823 uhci_alloc_intr_info(sc) 824 uhci_softc_t *sc; 825 { 826 uhci_intr_info_t *ii; 827 828 ii = LIST_FIRST(&uhci_ii_free); 829 if (ii) 830 LIST_REMOVE(ii, list); 831 else { 832 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 833 } 834 ii->sc = sc; 835 #if defined(__FreeBSD__) 836 callout_handle_init(&ii->timeout_handle); 837 #endif 838 839 return ii; 840 } 841 842 void 843 uhci_free_intr_info(ii) 844 uhci_intr_info_t *ii; 845 { 846 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 847 } 848 849 /* Add control QH, called at splusb(). */ 850 void 851 uhci_add_ctrl(sc, sqh) 852 uhci_softc_t *sc; 853 uhci_soft_qh_t *sqh; 854 { 855 uhci_soft_qh_t *eqh; 856 857 SPLUSBCHECK; 858 859 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 860 eqh = sc->sc_ctl_end; 861 sqh->hlink = eqh->hlink; 862 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 863 eqh->hlink = sqh; 864 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 865 sc->sc_ctl_end = sqh; 866 } 867 868 /* Remove control QH, called at splusb(). */ 869 void 870 uhci_remove_ctrl(sc, sqh) 871 uhci_softc_t *sc; 872 uhci_soft_qh_t *sqh; 873 { 874 uhci_soft_qh_t *pqh; 875 876 SPLUSBCHECK; 877 878 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 879 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 880 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 881 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 882 printf("uhci_remove_ctrl: QH not found\n"); 883 return; 884 } 885 #else 886 ; 887 #endif 888 pqh->hlink = sqh->hlink; 889 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 890 if (sc->sc_ctl_end == sqh) 891 sc->sc_ctl_end = pqh; 892 } 893 894 /* Add bulk QH, called at splusb(). */ 895 void 896 uhci_add_bulk(sc, sqh) 897 uhci_softc_t *sc; 898 uhci_soft_qh_t *sqh; 899 { 900 uhci_soft_qh_t *eqh; 901 902 SPLUSBCHECK; 903 904 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 905 eqh = sc->sc_bulk_end; 906 sqh->hlink = eqh->hlink; 907 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 908 eqh->hlink = sqh; 909 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 910 sc->sc_bulk_end = sqh; 911 } 912 913 /* Remove bulk QH, called at splusb(). */ 914 void 915 uhci_remove_bulk(sc, sqh) 916 uhci_softc_t *sc; 917 uhci_soft_qh_t *sqh; 918 { 919 uhci_soft_qh_t *pqh; 920 921 SPLUSBCHECK; 922 923 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 924 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 925 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 926 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 927 printf("uhci_remove_bulk: QH not found\n"); 928 return; 929 } 930 #else 931 ; 932 #endif 933 pqh->hlink = sqh->hlink; 934 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 935 if (sc->sc_bulk_end == sqh) 936 sc->sc_bulk_end = pqh; 937 } 938 939 int 940 uhci_intr(arg) 941 void *arg; 942 { 943 uhci_softc_t *sc = arg; 944 int status; 945 int ack; 946 uhci_intr_info_t *ii; 947 948 #ifdef UHCI_DEBUG 949 if (uhcidebug > 15) { 950 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 951 uhci_dumpregs(sc); 952 } 953 #endif 954 955 status = UREAD2(sc, UHCI_STS); 956 if (status == 0) /* The interrupt was not for us. */ 957 return (0); 958 959 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 960 if (sc->sc_suspend != PWR_RESUME) 961 printf("uhci_intr: suspended sts=0x%x\n", status); 962 #endif 963 964 ack = 0; 965 if (status & UHCI_STS_USBINT) 966 ack |= UHCI_STS_USBINT; 967 if (status & UHCI_STS_USBEI) 968 ack |= UHCI_STS_USBEI; 969 if (status & UHCI_STS_RD) { 970 ack |= UHCI_STS_RD; 971 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 972 } 973 if (status & UHCI_STS_HSE) { 974 ack |= UHCI_STS_HSE; 975 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 976 } 977 if (status & UHCI_STS_HCPE) { 978 ack |= UHCI_STS_HCPE; 979 printf("%s: host controller process error\n", 980 USBDEVNAME(sc->sc_bus.bdev)); 981 } 982 if (status & UHCI_STS_HCH) { 983 /* no acknowledge needed */ 984 printf("%s: host controller halted\n", 985 USBDEVNAME(sc->sc_bus.bdev)); 986 sc->sc_dying = 1; 987 } 988 989 if (ack) /* acknowledge the ints */ 990 UWRITE2(sc, UHCI_STS, ack); 991 else /* nothing to acknowledge */ 992 return (0); 993 994 sc->sc_bus.intr_context++; 995 sc->sc_bus.no_intrs++; 996 997 /* 998 * Interrupts on UHCI really suck. When the host controller 999 * interrupts because a transfer is completed there is no 1000 * way of knowing which transfer it was. You can scan down 1001 * the TDs and QHs of the previous frame to limit the search, 1002 * but that assumes that the interrupt was not delayed by more 1003 * than 1 ms, which may not always be true (e.g. after debug 1004 * output on a slow console). 1005 * We scan all interrupt descriptors to see if any have 1006 * completed. 1007 */ 1008 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1009 uhci_check_intr(sc, ii); 1010 1011 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1012 1013 sc->sc_bus.intr_context--; 1014 1015 return (1); 1016 } 1017 1018 /* Check for an interrupt. */ 1019 void 1020 uhci_check_intr(sc, ii) 1021 uhci_softc_t *sc; 1022 uhci_intr_info_t *ii; 1023 { 1024 uhci_soft_td_t *std, *lstd; 1025 u_int32_t status; 1026 1027 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1028 #ifdef DIAGNOSTIC 1029 if (ii == NULL) { 1030 printf("uhci_check_intr: no ii? %p\n", ii); 1031 return; 1032 } 1033 #endif 1034 if (ii->stdstart == NULL) 1035 return; 1036 lstd = ii->stdend; 1037 #ifdef DIAGNOSTIC 1038 if (lstd == NULL) { 1039 printf("uhci_check_intr: std==0\n"); 1040 return; 1041 } 1042 #endif 1043 /* 1044 * If the last TD is still active we need to check whether there 1045 * is a an error somewhere in the middle, or whether there was a 1046 * short packet (SPD and not ACTIVE). 1047 */ 1048 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1049 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1050 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1051 status = LE(std->td.td_status); 1052 if ((status & UHCI_TD_STALLED) || 1053 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 1054 UHCI_TD_SPD) 1055 goto done; 1056 } 1057 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1058 ii, ii->stdstart)); 1059 return; 1060 } 1061 done: 1062 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1063 uhci_idone(ii); 1064 } 1065 1066 /* Called at splusb() */ 1067 void 1068 uhci_idone(ii) 1069 uhci_intr_info_t *ii; 1070 { 1071 usbd_xfer_handle xfer = ii->xfer; 1072 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1073 uhci_soft_td_t *std; 1074 u_int32_t status = 0, nstatus; 1075 int actlen; 1076 1077 #ifdef DIAGNOSTIC 1078 { 1079 int s = splhigh(); 1080 if (ii->isdone) { 1081 splx(s); 1082 printf("uhci_idone: ii=%p is done!\n", ii); 1083 return; 1084 } 1085 ii->isdone = 1; 1086 splx(s); 1087 } 1088 #endif 1089 1090 if (xfer->status == USBD_CANCELLED || 1091 xfer->status == USBD_TIMEOUT) { 1092 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1093 return; 1094 } 1095 1096 if (xfer->nframes != 0) { 1097 /* Isoc transfer, do things differently. */ 1098 uhci_soft_td_t **stds = upipe->u.iso.stds; 1099 int i, n, nframes; 1100 1101 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1102 1103 nframes = xfer->nframes; 1104 actlen = 0; 1105 n = xfer->hcprivint; 1106 for (i = 0; i < nframes; i++) { 1107 std = stds[n]; 1108 #ifdef UHCI_DEBUG 1109 if (uhcidebug > 5) { 1110 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1111 uhci_dump_td(std); 1112 } 1113 #endif 1114 if (++n >= UHCI_VFRAMELIST_COUNT) 1115 n = 0; 1116 status = LE(std->td.td_status); 1117 actlen += UHCI_TD_GET_ACTLEN(status); 1118 } 1119 upipe->u.iso.inuse -= nframes; 1120 xfer->actlen = actlen; 1121 xfer->status = USBD_NORMAL_COMPLETION; 1122 xfer->hcpriv = ii; 1123 usb_transfer_complete(xfer); 1124 return; 1125 } 1126 1127 #ifdef UHCI_DEBUG 1128 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1129 ii, xfer, upipe)); 1130 if (uhcidebug > 10) 1131 uhci_dump_tds(ii->stdstart); 1132 #endif 1133 1134 /* The transfer is done, compute actual length and status. */ 1135 actlen = 0; 1136 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1137 nstatus = LE(std->td.td_status); 1138 if (nstatus & UHCI_TD_ACTIVE) 1139 break; 1140 1141 status = nstatus; 1142 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1143 actlen += UHCI_TD_GET_ACTLEN(status); 1144 } 1145 /* If there are left over TDs we need to update the toggle. */ 1146 if (std != NULL) 1147 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1148 1149 status &= UHCI_TD_ERROR; 1150 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1151 actlen, status)); 1152 xfer->actlen = actlen; 1153 if (status != 0) { 1154 DPRINTFN((status == UHCI_TD_STALLED)*10, 1155 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1156 "status 0x%b\n", 1157 xfer->pipe->device->address, 1158 xfer->pipe->endpoint->edesc->bEndpointAddress, 1159 (int)status, 1160 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1161 "STALLED\30ACTIVE")); 1162 if (status == UHCI_TD_STALLED) 1163 xfer->status = USBD_STALLED; 1164 else 1165 xfer->status = USBD_IOERROR; /* more info XXX */ 1166 } else { 1167 xfer->status = USBD_NORMAL_COMPLETION; 1168 } 1169 xfer->hcpriv = ii; 1170 usb_transfer_complete(xfer); 1171 } 1172 1173 /* 1174 * Called when a request does not complete. 1175 */ 1176 void 1177 uhci_timeout(addr) 1178 void *addr; 1179 { 1180 uhci_intr_info_t *ii = addr; 1181 1182 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1183 1184 #ifdef UHCI_DEBUG 1185 if (uhcidebug > 10) 1186 uhci_dump_tds(ii->stdstart); 1187 #endif 1188 1189 ii->xfer->device->bus->intr_context++; 1190 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1191 ii->xfer->device->bus->intr_context--; 1192 } 1193 1194 /* 1195 * Wait here until controller claims to have an interrupt. 1196 * Then call uhci_intr and return. Use timeout to avoid waiting 1197 * too long. 1198 * Only used during boot when interrupts are not enabled yet. 1199 */ 1200 void 1201 uhci_waitintr(sc, xfer) 1202 uhci_softc_t *sc; 1203 usbd_xfer_handle xfer; 1204 { 1205 int timo = xfer->timeout; 1206 uhci_intr_info_t *ii; 1207 1208 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1209 1210 xfer->status = USBD_IN_PROGRESS; 1211 for (; timo >= 0; timo--) { 1212 usb_delay_ms(&sc->sc_bus, 1); 1213 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1214 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1215 uhci_intr(sc); 1216 if (xfer->status != USBD_IN_PROGRESS) 1217 return; 1218 } 1219 } 1220 1221 /* Timeout */ 1222 DPRINTF(("uhci_waitintr: timeout\n")); 1223 for (ii = LIST_FIRST(&sc->sc_intrhead); 1224 ii != NULL && ii->xfer != xfer; 1225 ii = LIST_NEXT(ii, list)) 1226 ; 1227 #ifdef DIAGNOSTIC 1228 if (ii == NULL) 1229 panic("uhci_waitintr: lost intr_info\n"); 1230 #endif 1231 uhci_idone(ii); 1232 } 1233 1234 void 1235 uhci_poll(bus) 1236 struct usbd_bus *bus; 1237 { 1238 uhci_softc_t *sc = (uhci_softc_t *)bus; 1239 1240 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1241 uhci_intr(sc); 1242 } 1243 1244 #if 0 1245 void 1246 uhci_reset(p) 1247 void *p; 1248 { 1249 uhci_softc_t *sc = p; 1250 int n; 1251 1252 UHCICMD(sc, UHCI_CMD_HCRESET); 1253 /* The reset bit goes low when the controller is done. */ 1254 for (n = 0; n < UHCI_RESET_TIMEOUT && 1255 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1256 delay(100); 1257 if (n >= UHCI_RESET_TIMEOUT) 1258 printf("%s: controller did not reset\n", 1259 USBDEVNAME(sc->sc_bus.bdev)); 1260 } 1261 #endif 1262 1263 usbd_status 1264 uhci_run(sc, run) 1265 uhci_softc_t *sc; 1266 int run; 1267 { 1268 int s, n, running; 1269 u_int16_t cmd; 1270 1271 run = run != 0; 1272 s = splusb(); 1273 DPRINTF(("uhci_run: setting run=%d\n", run)); 1274 cmd = UREAD2(sc, UHCI_CMD); 1275 if (run) 1276 cmd |= UHCI_CMD_RS; 1277 else 1278 cmd &= ~UHCI_CMD_RS; 1279 UHCICMD(sc, cmd); 1280 for(n = 0; n < 10; n++) { 1281 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1282 /* return when we've entered the state we want */ 1283 if (run == running) { 1284 splx(s); 1285 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1286 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1287 return (USBD_NORMAL_COMPLETION); 1288 } 1289 usb_delay_ms(&sc->sc_bus, 1); 1290 } 1291 splx(s); 1292 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1293 run ? "start" : "stop"); 1294 return (USBD_IOERROR); 1295 } 1296 1297 /* 1298 * Memory management routines. 1299 * uhci_alloc_std allocates TDs 1300 * uhci_alloc_sqh allocates QHs 1301 * These two routines do their own free list management, 1302 * partly for speed, partly because allocating DMAable memory 1303 * has page size granularaity so much memory would be wasted if 1304 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1305 */ 1306 1307 uhci_soft_td_t * 1308 uhci_alloc_std(sc) 1309 uhci_softc_t *sc; 1310 { 1311 uhci_soft_td_t *std; 1312 usbd_status err; 1313 int i, offs; 1314 usb_dma_t dma; 1315 1316 if (sc->sc_freetds == NULL) { 1317 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1318 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1319 UHCI_TD_ALIGN, &dma); 1320 if (err) 1321 return (0); 1322 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1323 offs = i * UHCI_STD_SIZE; 1324 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1325 std->physaddr = DMAADDR(&dma) + offs; 1326 std->link.std = sc->sc_freetds; 1327 sc->sc_freetds = std; 1328 } 1329 } 1330 std = sc->sc_freetds; 1331 sc->sc_freetds = std->link.std; 1332 memset(&std->td, 0, sizeof(uhci_td_t)); 1333 return std; 1334 } 1335 1336 void 1337 uhci_free_std(sc, std) 1338 uhci_softc_t *sc; 1339 uhci_soft_td_t *std; 1340 { 1341 #ifdef DIAGNOSTIC 1342 #define TD_IS_FREE 0x12345678 1343 if (std->td.td_token == LE(TD_IS_FREE)) { 1344 printf("uhci_free_std: freeing free TD %p\n", std); 1345 return; 1346 } 1347 std->td.td_token = LE(TD_IS_FREE); 1348 #endif 1349 std->link.std = sc->sc_freetds; 1350 sc->sc_freetds = std; 1351 } 1352 1353 uhci_soft_qh_t * 1354 uhci_alloc_sqh(sc) 1355 uhci_softc_t *sc; 1356 { 1357 uhci_soft_qh_t *sqh; 1358 usbd_status err; 1359 int i, offs; 1360 usb_dma_t dma; 1361 1362 if (sc->sc_freeqhs == NULL) { 1363 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1364 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1365 UHCI_QH_ALIGN, &dma); 1366 if (err) 1367 return (0); 1368 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1369 offs = i * UHCI_SQH_SIZE; 1370 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1371 sqh->physaddr = DMAADDR(&dma) + offs; 1372 sqh->hlink = sc->sc_freeqhs; 1373 sc->sc_freeqhs = sqh; 1374 } 1375 } 1376 sqh = sc->sc_freeqhs; 1377 sc->sc_freeqhs = sqh->hlink; 1378 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1379 return (sqh); 1380 } 1381 1382 void 1383 uhci_free_sqh(sc, sqh) 1384 uhci_softc_t *sc; 1385 uhci_soft_qh_t *sqh; 1386 { 1387 sqh->hlink = sc->sc_freeqhs; 1388 sc->sc_freeqhs = sqh; 1389 } 1390 1391 #if 0 1392 /* 1393 * Enter a list of transfers onto a control queue. 1394 * Called at splusb() 1395 */ 1396 void 1397 uhci_enter_ctl_q(sc, sqh, ii) 1398 uhci_softc_t *sc; 1399 uhci_soft_qh_t *sqh; 1400 uhci_intr_info_t *ii; 1401 { 1402 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1403 1404 } 1405 #endif 1406 1407 void 1408 uhci_free_std_chain(sc, std, stdend) 1409 uhci_softc_t *sc; 1410 uhci_soft_td_t *std; 1411 uhci_soft_td_t *stdend; 1412 { 1413 uhci_soft_td_t *p; 1414 1415 for (; std != stdend; std = p) { 1416 p = std->link.std; 1417 uhci_free_std(sc, std); 1418 } 1419 } 1420 1421 usbd_status 1422 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1423 struct uhci_pipe *upipe; 1424 uhci_softc_t *sc; 1425 int len, rd; 1426 u_int16_t flags; 1427 usb_dma_t *dma; 1428 uhci_soft_td_t **sp, **ep; 1429 { 1430 uhci_soft_td_t *p, *lastp; 1431 uhci_physaddr_t lastlink; 1432 int i, ntd, l, tog, maxp; 1433 u_int32_t status; 1434 int addr = upipe->pipe.device->address; 1435 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1436 1437 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1438 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1439 upipe->pipe.device->lowspeed, flags)); 1440 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1441 if (maxp == 0) { 1442 printf("uhci_alloc_std_chain: maxp=0\n"); 1443 return (USBD_INVAL); 1444 } 1445 ntd = (len + maxp - 1) / maxp; 1446 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1447 ntd++; 1448 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1449 if (ntd == 0) { 1450 *sp = *ep = 0; 1451 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1452 return (USBD_NORMAL_COMPLETION); 1453 } 1454 tog = upipe->nexttoggle; 1455 if (ntd % 2 == 0) 1456 tog ^= 1; 1457 upipe->nexttoggle = tog ^ 1; 1458 lastp = 0; 1459 lastlink = UHCI_PTR_T; 1460 ntd--; 1461 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1462 if (upipe->pipe.device->lowspeed) 1463 status |= UHCI_TD_LS; 1464 if (flags & USBD_SHORT_XFER_OK) 1465 status |= UHCI_TD_SPD; 1466 for (i = ntd; i >= 0; i--) { 1467 p = uhci_alloc_std(sc); 1468 if (p == NULL) { 1469 uhci_free_std_chain(sc, lastp, 0); 1470 return (USBD_NOMEM); 1471 } 1472 p->link.std = lastp; 1473 if (lastlink == UHCI_PTR_T) 1474 p->td.td_link = LE(lastlink); 1475 else 1476 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1477 lastp = p; 1478 lastlink = p->physaddr; 1479 p->td.td_status = LE(status); 1480 if (i == ntd) { 1481 /* last TD */ 1482 l = len % maxp; 1483 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1484 l = maxp; 1485 *ep = p; 1486 } else 1487 l = maxp; 1488 p->td.td_token = 1489 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1490 UHCI_TD_OUT(l, endpt, addr, tog)); 1491 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1492 tog ^= 1; 1493 } 1494 *sp = lastp; 1495 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1496 upipe->nexttoggle)); 1497 return (USBD_NORMAL_COMPLETION); 1498 } 1499 1500 void 1501 uhci_device_clear_toggle(pipe) 1502 usbd_pipe_handle pipe; 1503 { 1504 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1505 upipe->nexttoggle = 0; 1506 } 1507 1508 void 1509 uhci_noop(pipe) 1510 usbd_pipe_handle pipe; 1511 { 1512 } 1513 1514 usbd_status 1515 uhci_device_bulk_transfer(xfer) 1516 usbd_xfer_handle xfer; 1517 { 1518 usbd_status err; 1519 1520 /* Insert last in queue. */ 1521 err = usb_insert_transfer(xfer); 1522 if (err) 1523 return (err); 1524 1525 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1526 * start first 1527 */ 1528 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1529 } 1530 1531 usbd_status 1532 uhci_device_bulk_start(xfer) 1533 usbd_xfer_handle xfer; 1534 { 1535 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1536 usbd_device_handle dev = upipe->pipe.device; 1537 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1538 uhci_intr_info_t *ii = upipe->iinfo; 1539 uhci_soft_td_t *data, *dataend; 1540 uhci_soft_qh_t *sqh; 1541 usbd_status err; 1542 int len, isread, endpt; 1543 int s; 1544 1545 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1546 xfer, xfer->length, xfer->flags)); 1547 1548 if (sc->sc_dying) 1549 return (USBD_IOERROR); 1550 1551 #ifdef DIAGNOSTIC 1552 if (xfer->rqflags & URQ_REQUEST) 1553 panic("uhci_device_bulk_transfer: a request\n"); 1554 #endif 1555 1556 len = xfer->length; 1557 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1558 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1559 sqh = upipe->u.bulk.sqh; 1560 1561 upipe->u.bulk.isread = isread; 1562 upipe->u.bulk.length = len; 1563 1564 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1565 &xfer->dmabuf, &data, &dataend); 1566 if (err) 1567 return (err); 1568 dataend->td.td_status |= LE(UHCI_TD_IOC); 1569 1570 #ifdef UHCI_DEBUG 1571 if (uhcidebug > 8) { 1572 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1573 uhci_dump_tds(data); 1574 } 1575 #endif 1576 1577 /* Set up interrupt info. */ 1578 ii->xfer = xfer; 1579 ii->stdstart = data; 1580 ii->stdend = dataend; 1581 #if defined(__FreeBSD__) 1582 callout_handle_init(&ii->timeout_handle); 1583 #endif 1584 #ifdef DIAGNOSTIC 1585 if (!ii->isdone) { 1586 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1587 } 1588 ii->isdone = 0; 1589 #endif 1590 1591 sqh->elink = data; 1592 sqh->qh.qh_elink = LE(data->physaddr); 1593 sqh->intr_info = ii; 1594 1595 s = splusb(); 1596 uhci_add_bulk(sc, sqh); 1597 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1598 1599 if (xfer->timeout && !sc->sc_bus.use_polling) { 1600 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1601 ii->timeout_handle); 1602 } 1603 splx(s); 1604 1605 #ifdef UHCI_DEBUG 1606 if (uhcidebug > 10) { 1607 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1608 uhci_dump_tds(data); 1609 } 1610 #endif 1611 1612 if (sc->sc_bus.use_polling) 1613 uhci_waitintr(sc, xfer); 1614 1615 return (USBD_IN_PROGRESS); 1616 } 1617 1618 /* Abort a device bulk request. */ 1619 void 1620 uhci_device_bulk_abort(xfer) 1621 usbd_xfer_handle xfer; 1622 { 1623 DPRINTF(("uhci_device_bulk_abort:\n")); 1624 uhci_abort_xfer(xfer, USBD_CANCELLED); 1625 } 1626 1627 void 1628 uhci_abort_xfer(xfer, status) 1629 usbd_xfer_handle xfer; 1630 usbd_status status; 1631 { 1632 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1633 uhci_intr_info_t *ii = upipe->iinfo; 1634 uhci_soft_td_t *std; 1635 1636 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1637 1638 /* Make interrupt routine ignore it, */ 1639 xfer->status = status; 1640 1641 /* don't timeout, */ 1642 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1643 1644 /* make hardware ignore it, */ 1645 for (std = ii->stdstart; std != 0; std = std->link.std) 1646 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1647 1648 xfer->hcpriv = ii; 1649 1650 #if 1 1651 /* Make sure hardware has completed. */ 1652 if (xfer->device->bus->intr_context) { 1653 /* We have no process context, so we can't use tsleep(). */ 1654 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1655 } else { 1656 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1657 KASSERT(intr_nesting_level == 0, 1658 ("ohci_abort_req in interrupt context")); 1659 #endif 1660 usb_delay_ms(xfer->pipe->device->bus, 1); 1661 /* and call final part of interrupt handler. */ 1662 uhci_abort_xfer_end(xfer); 1663 } 1664 #else 1665 delay(1000); 1666 uhci_abort_xfer_end(xfer); 1667 #endif 1668 } 1669 1670 void 1671 uhci_abort_xfer_end(v) 1672 void *v; 1673 { 1674 usbd_xfer_handle xfer = v; 1675 int s; 1676 1677 s = splusb(); 1678 usb_transfer_complete(xfer); 1679 splx(s); 1680 } 1681 1682 /* Close a device bulk pipe. */ 1683 void 1684 uhci_device_bulk_close(pipe) 1685 usbd_pipe_handle pipe; 1686 { 1687 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1688 usbd_device_handle dev = upipe->pipe.device; 1689 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1690 1691 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1692 uhci_free_intr_info(upipe->iinfo); 1693 /* XXX free other resources */ 1694 } 1695 1696 usbd_status 1697 uhci_device_ctrl_transfer(xfer) 1698 usbd_xfer_handle xfer; 1699 { 1700 usbd_status err; 1701 1702 /* Insert last in queue. */ 1703 err = usb_insert_transfer(xfer); 1704 if (err) 1705 return (err); 1706 1707 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1708 * start first 1709 */ 1710 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1711 } 1712 1713 usbd_status 1714 uhci_device_ctrl_start(xfer) 1715 usbd_xfer_handle xfer; 1716 { 1717 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1718 usbd_status err; 1719 1720 if (sc->sc_dying) 1721 return (USBD_IOERROR); 1722 1723 #ifdef DIAGNOSTIC 1724 if (!(xfer->rqflags & URQ_REQUEST)) 1725 panic("uhci_device_ctrl_transfer: not a request\n"); 1726 #endif 1727 1728 err = uhci_device_request(xfer); 1729 if (err) 1730 return (err); 1731 1732 if (sc->sc_bus.use_polling) 1733 uhci_waitintr(sc, xfer); 1734 return (USBD_IN_PROGRESS); 1735 } 1736 1737 usbd_status 1738 uhci_device_intr_transfer(xfer) 1739 usbd_xfer_handle xfer; 1740 { 1741 usbd_status err; 1742 1743 /* Insert last in queue. */ 1744 err = usb_insert_transfer(xfer); 1745 if (err) 1746 return (err); 1747 1748 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1749 * start first 1750 */ 1751 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1752 } 1753 1754 usbd_status 1755 uhci_device_intr_start(xfer) 1756 usbd_xfer_handle xfer; 1757 { 1758 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1759 usbd_device_handle dev = upipe->pipe.device; 1760 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1761 uhci_intr_info_t *ii = upipe->iinfo; 1762 uhci_soft_td_t *data, *dataend; 1763 uhci_soft_qh_t *sqh; 1764 usbd_status err; 1765 int i, s; 1766 1767 if (sc->sc_dying) 1768 return (USBD_IOERROR); 1769 1770 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1771 xfer, xfer->length, xfer->flags)); 1772 1773 #ifdef DIAGNOSTIC 1774 if (xfer->rqflags & URQ_REQUEST) 1775 panic("uhci_device_intr_transfer: a request\n"); 1776 #endif 1777 1778 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1779 &xfer->dmabuf, &data, &dataend); 1780 if (err) 1781 return (err); 1782 dataend->td.td_status |= LE(UHCI_TD_IOC); 1783 1784 #ifdef UHCI_DEBUG 1785 if (uhcidebug > 10) { 1786 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1787 uhci_dump_tds(data); 1788 uhci_dump_qh(upipe->u.intr.qhs[0]); 1789 } 1790 #endif 1791 1792 s = splusb(); 1793 /* Set up interrupt info. */ 1794 ii->xfer = xfer; 1795 ii->stdstart = data; 1796 ii->stdend = dataend; 1797 #if defined(__FreeBSD__) 1798 callout_handle_init(&ii->timeout_handle); 1799 #endif 1800 #ifdef DIAGNOSTIC 1801 if (!ii->isdone) { 1802 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1803 } 1804 ii->isdone = 0; 1805 #endif 1806 1807 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1808 upipe->u.intr.qhs[0])); 1809 for (i = 0; i < upipe->u.intr.npoll; i++) { 1810 sqh = upipe->u.intr.qhs[i]; 1811 sqh->elink = data; 1812 sqh->qh.qh_elink = LE(data->physaddr); 1813 } 1814 splx(s); 1815 1816 #ifdef UHCI_DEBUG 1817 if (uhcidebug > 10) { 1818 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1819 uhci_dump_tds(data); 1820 uhci_dump_qh(upipe->u.intr.qhs[0]); 1821 } 1822 #endif 1823 1824 return (USBD_IN_PROGRESS); 1825 } 1826 1827 /* Abort a device control request. */ 1828 void 1829 uhci_device_ctrl_abort(xfer) 1830 usbd_xfer_handle xfer; 1831 { 1832 DPRINTF(("uhci_device_ctrl_abort:\n")); 1833 uhci_abort_xfer(xfer, USBD_CANCELLED); 1834 } 1835 1836 /* Close a device control pipe. */ 1837 void 1838 uhci_device_ctrl_close(pipe) 1839 usbd_pipe_handle pipe; 1840 { 1841 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1842 1843 uhci_free_intr_info(upipe->iinfo); 1844 /* XXX free other resources? */ 1845 } 1846 1847 /* Abort a device interrupt request. */ 1848 void 1849 uhci_device_intr_abort(xfer) 1850 usbd_xfer_handle xfer; 1851 { 1852 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1853 if (xfer->pipe->intrxfer == xfer) { 1854 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1855 xfer->pipe->intrxfer = 0; 1856 } 1857 uhci_abort_xfer(xfer, USBD_CANCELLED); 1858 } 1859 1860 /* Close a device interrupt pipe. */ 1861 void 1862 uhci_device_intr_close(pipe) 1863 usbd_pipe_handle pipe; 1864 { 1865 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1866 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1867 int i, s, npoll; 1868 1869 upipe->iinfo->stdstart = 0; /* inactive */ 1870 1871 /* Unlink descriptors from controller data structures. */ 1872 npoll = upipe->u.intr.npoll; 1873 uhci_lock_frames(sc); 1874 for (i = 0; i < npoll; i++) 1875 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1876 upipe->u.intr.qhs[i]); 1877 uhci_unlock_frames(sc); 1878 1879 /* 1880 * We now have to wait for any activity on the physical 1881 * descriptors to stop. 1882 */ 1883 usb_delay_ms(&sc->sc_bus, 2); 1884 1885 for(i = 0; i < npoll; i++) 1886 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1887 free(upipe->u.intr.qhs, M_USBHC); 1888 1889 s = splusb(); 1890 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1891 splx(s); 1892 uhci_free_intr_info(upipe->iinfo); 1893 1894 /* XXX free other resources */ 1895 } 1896 1897 usbd_status 1898 uhci_device_request(xfer) 1899 usbd_xfer_handle xfer; 1900 { 1901 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1902 usb_device_request_t *req = &xfer->request; 1903 usbd_device_handle dev = upipe->pipe.device; 1904 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1905 int addr = dev->address; 1906 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1907 uhci_intr_info_t *ii = upipe->iinfo; 1908 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1909 uhci_soft_qh_t *sqh; 1910 int len; 1911 u_int32_t ls; 1912 usbd_status err; 1913 int isread; 1914 int s; 1915 1916 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1917 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1918 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1919 UGETW(req->wIndex), UGETW(req->wLength), 1920 addr, endpt)); 1921 1922 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1923 isread = req->bmRequestType & UT_READ; 1924 len = UGETW(req->wLength); 1925 1926 setup = upipe->u.ctl.setup; 1927 stat = upipe->u.ctl.stat; 1928 sqh = upipe->u.ctl.sqh; 1929 1930 /* Set up data transaction */ 1931 if (len != 0) { 1932 upipe->nexttoggle = 1; 1933 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1934 &xfer->dmabuf, &data, &dataend); 1935 if (err) 1936 return (err); 1937 next = data; 1938 dataend->link.std = stat; 1939 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1940 } else { 1941 next = stat; 1942 } 1943 upipe->u.ctl.length = len; 1944 1945 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1946 1947 setup->link.std = next; 1948 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1949 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1950 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1951 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1952 1953 stat->link.std = 0; 1954 stat->td.td_link = LE(UHCI_PTR_T); 1955 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1956 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1957 stat->td.td_token = 1958 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1959 UHCI_TD_IN (0, endpt, addr, 1)); 1960 stat->td.td_buffer = LE(0); 1961 1962 #ifdef UHCI_DEBUG 1963 if (uhcidebug > 10) { 1964 DPRINTF(("uhci_device_request: before transfer\n")); 1965 uhci_dump_tds(setup); 1966 } 1967 #endif 1968 1969 /* Set up interrupt info. */ 1970 ii->xfer = xfer; 1971 ii->stdstart = setup; 1972 ii->stdend = stat; 1973 #if defined(__FreeBSD__) 1974 callout_handle_init(&ii->timeout_handle); 1975 #endif 1976 #ifdef DIAGNOSTIC 1977 if (!ii->isdone) { 1978 printf("uhci_device_request: not done, ii=%p\n", ii); 1979 } 1980 ii->isdone = 0; 1981 #endif 1982 1983 sqh->elink = setup; 1984 sqh->qh.qh_elink = LE(setup->physaddr); 1985 sqh->intr_info = ii; 1986 1987 s = splusb(); 1988 uhci_add_ctrl(sc, sqh); 1989 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1990 #ifdef UHCI_DEBUG 1991 if (uhcidebug > 12) { 1992 uhci_soft_td_t *std; 1993 uhci_soft_qh_t *xqh; 1994 uhci_soft_qh_t *sxqh; 1995 int maxqh = 0; 1996 uhci_physaddr_t link; 1997 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1998 for (std = sc->sc_vframes[0].htd, link = 0; 1999 (link & UHCI_PTR_Q) == 0; 2000 std = std->link.std) { 2001 link = LE(std->td.td_link); 2002 uhci_dump_td(std); 2003 } 2004 sxqh = (uhci_soft_qh_t *)std; 2005 uhci_dump_qh(sxqh); 2006 for (xqh = sxqh; 2007 xqh != NULL; 2008 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2009 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2010 uhci_dump_qh(xqh); 2011 } 2012 DPRINTF(("Enqueued QH:\n")); 2013 uhci_dump_qh(sqh); 2014 uhci_dump_tds(sqh->elink); 2015 } 2016 #endif 2017 if (xfer->timeout && !sc->sc_bus.use_polling) { 2018 usb_timeout(uhci_timeout, ii, 2019 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2020 } 2021 splx(s); 2022 2023 return (USBD_NORMAL_COMPLETION); 2024 } 2025 2026 usbd_status 2027 uhci_device_isoc_transfer(xfer) 2028 usbd_xfer_handle xfer; 2029 { 2030 usbd_status err; 2031 2032 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2033 2034 /* Put it on our queue, */ 2035 err = usb_insert_transfer(xfer); 2036 2037 /* bail out on error, */ 2038 if (err && err != USBD_IN_PROGRESS) 2039 return (err); 2040 2041 /* XXX should check inuse here */ 2042 2043 /* insert into schedule, */ 2044 uhci_device_isoc_enter(xfer); 2045 2046 /* and put on interrupt list if the pipe wasn't running */ 2047 if (!err) 2048 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2049 2050 return (err); 2051 } 2052 2053 void 2054 uhci_device_isoc_enter(xfer) 2055 usbd_xfer_handle xfer; 2056 { 2057 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2058 usbd_device_handle dev = upipe->pipe.device; 2059 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2060 struct iso *iso = &upipe->u.iso; 2061 uhci_soft_td_t *std; 2062 u_int32_t buf, len, status; 2063 int s, i, next, nframes; 2064 2065 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2066 "nframes=%d\n", 2067 iso->inuse, iso->next, xfer, xfer->nframes)); 2068 2069 if (sc->sc_dying) 2070 return; 2071 2072 if (xfer->status == USBD_IN_PROGRESS) { 2073 /* This request has already been entered into the frame list */ 2074 /* XXX */ 2075 } 2076 2077 #ifdef DIAGNOSTIC 2078 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2079 printf("uhci_device_isoc_enter: overflow!\n"); 2080 #endif 2081 2082 next = iso->next; 2083 if (next == -1) { 2084 /* Not in use yet, schedule it a few frames ahead. */ 2085 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2086 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2087 } 2088 2089 xfer->status = USBD_IN_PROGRESS; 2090 xfer->hcprivint = next; 2091 2092 buf = DMAADDR(&xfer->dmabuf); 2093 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2094 UHCI_TD_ACTIVE | 2095 UHCI_TD_IOS)); 2096 nframes = xfer->nframes; 2097 s = splusb(); 2098 for (i = 0; i < nframes; i++) { 2099 std = iso->stds[next]; 2100 if (++next >= UHCI_VFRAMELIST_COUNT) 2101 next = 0; 2102 len = xfer->frlengths[i]; 2103 std->td.td_buffer = LE(buf); 2104 if (i == nframes - 1) 2105 status |= LE(UHCI_TD_IOC); 2106 std->td.td_status = status; 2107 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2108 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2109 #ifdef UHCI_DEBUG 2110 if (uhcidebug > 5) { 2111 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2112 uhci_dump_td(std); 2113 } 2114 #endif 2115 buf += len; 2116 } 2117 iso->next = next; 2118 iso->inuse += xfer->nframes; 2119 2120 splx(s); 2121 } 2122 2123 usbd_status 2124 uhci_device_isoc_start(xfer) 2125 usbd_xfer_handle xfer; 2126 { 2127 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2128 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2129 uhci_intr_info_t *ii = upipe->iinfo; 2130 uhci_soft_td_t *end; 2131 int s, i; 2132 2133 if (sc->sc_dying) 2134 return (USBD_IOERROR); 2135 2136 #ifdef DIAGNOSTIC 2137 if (xfer->status != USBD_IN_PROGRESS) 2138 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2139 #endif 2140 2141 /* Find the last TD */ 2142 i = xfer->hcprivint + xfer->nframes; 2143 if (i >= UHCI_VFRAMELIST_COUNT) 2144 i -= UHCI_VFRAMELIST_COUNT; 2145 end = upipe->u.iso.stds[i]; 2146 2147 s = splusb(); 2148 2149 /* Set up interrupt info. */ 2150 ii->xfer = xfer; 2151 ii->stdstart = end; 2152 ii->stdend = end; 2153 #if defined(__FreeBSD__) 2154 callout_handle_init(&ii->timeout_handle); 2155 #endif 2156 #ifdef DIAGNOSTIC 2157 if (!ii->isdone) { 2158 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2159 } 2160 ii->isdone = 0; 2161 #endif 2162 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2163 2164 splx(s); 2165 2166 return (USBD_IN_PROGRESS); 2167 } 2168 2169 void 2170 uhci_device_isoc_abort(xfer) 2171 usbd_xfer_handle xfer; 2172 { 2173 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2174 uhci_intr_info_t *ii = upipe->iinfo; 2175 uhci_soft_td_t **stds = upipe->u.iso.stds; 2176 uhci_soft_td_t *std; 2177 int i, n, nframes; 2178 2179 /* Make interrupt routine ignore it, */ 2180 xfer->status = USBD_CANCELLED; 2181 2182 /* make hardware ignore it, */ 2183 nframes = xfer->nframes; 2184 n = xfer->hcprivint; 2185 for (i = 0; i < nframes; i++) { 2186 std = stds[n]; 2187 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2188 if (++n >= UHCI_VFRAMELIST_COUNT) 2189 n = 0; 2190 } 2191 2192 xfer->hcpriv = ii; 2193 2194 /* make sure hardware has completed, */ 2195 if (xfer->device->bus->intr_context) { 2196 /* We have no process context, so we can't use tsleep(). */ 2197 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2198 } else { 2199 usb_delay_ms(xfer->pipe->device->bus, 1); 2200 /* and call final part of interrupt handler. */ 2201 uhci_abort_xfer_end(xfer); 2202 } 2203 } 2204 2205 void 2206 uhci_device_isoc_close(pipe) 2207 usbd_pipe_handle pipe; 2208 { 2209 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2210 usbd_device_handle dev = upipe->pipe.device; 2211 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2212 uhci_soft_td_t *std, *vstd; 2213 struct iso *iso; 2214 int i; 2215 2216 /* 2217 * Make sure all TDs are marked as inactive. 2218 * Wait for completion. 2219 * Unschedule. 2220 * Deallocate. 2221 */ 2222 iso = &upipe->u.iso; 2223 2224 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2225 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2226 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2227 2228 uhci_lock_frames(sc); 2229 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2230 std = iso->stds[i]; 2231 for (vstd = sc->sc_vframes[i].htd; 2232 vstd != NULL && vstd->link.std != std; 2233 vstd = vstd->link.std) 2234 ; 2235 if (vstd == NULL) { 2236 /*panic*/ 2237 printf("uhci_device_isoc_close: %p not found\n", std); 2238 uhci_unlock_frames(sc); 2239 return; 2240 } 2241 vstd->link = std->link; 2242 vstd->td.td_link = std->td.td_link; 2243 uhci_free_std(sc, std); 2244 } 2245 uhci_unlock_frames(sc); 2246 2247 free(iso->stds, M_USBHC); 2248 } 2249 2250 usbd_status 2251 uhci_setup_isoc(pipe) 2252 usbd_pipe_handle pipe; 2253 { 2254 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2255 usbd_device_handle dev = upipe->pipe.device; 2256 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2257 int addr = upipe->pipe.device->address; 2258 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2259 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2260 uhci_soft_td_t *std, *vstd; 2261 u_int32_t token; 2262 struct iso *iso; 2263 int i; 2264 2265 iso = &upipe->u.iso; 2266 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2267 M_USBHC, M_WAITOK); 2268 2269 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2270 UHCI_TD_OUT(0, endpt, addr, 0)); 2271 2272 /* Allocate the TDs and mark as inactive; */ 2273 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2274 std = uhci_alloc_std(sc); 2275 if (std == 0) 2276 goto bad; 2277 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2278 std->td.td_token = token; 2279 iso->stds[i] = std; 2280 } 2281 2282 /* Insert TDs into schedule. */ 2283 uhci_lock_frames(sc); 2284 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2285 std = iso->stds[i]; 2286 vstd = sc->sc_vframes[i].htd; 2287 std->link = vstd->link; 2288 std->td.td_link = vstd->td.td_link; 2289 vstd->link.std = std; 2290 vstd->td.td_link = LE(std->physaddr); 2291 } 2292 uhci_unlock_frames(sc); 2293 2294 iso->next = -1; 2295 iso->inuse = 0; 2296 2297 return (USBD_NORMAL_COMPLETION); 2298 2299 bad: 2300 while (--i >= 0) 2301 uhci_free_std(sc, iso->stds[i]); 2302 free(iso->stds, M_USBHC); 2303 return (USBD_NOMEM); 2304 } 2305 2306 void 2307 uhci_device_isoc_done(xfer) 2308 usbd_xfer_handle xfer; 2309 { 2310 uhci_intr_info_t *ii = xfer->hcpriv; 2311 2312 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2313 2314 /* Turn off the interrupt since it is active even if the TD is not. */ 2315 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2316 2317 LIST_REMOVE(ii, list); /* remove from active list */ 2318 } 2319 2320 void 2321 uhci_device_intr_done(xfer) 2322 usbd_xfer_handle xfer; 2323 { 2324 uhci_intr_info_t *ii = xfer->hcpriv; 2325 uhci_softc_t *sc = ii->sc; 2326 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2327 uhci_soft_qh_t *sqh; 2328 int i, npoll; 2329 2330 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2331 2332 npoll = upipe->u.intr.npoll; 2333 for(i = 0; i < npoll; i++) { 2334 sqh = upipe->u.intr.qhs[i]; 2335 sqh->elink = 0; 2336 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2337 } 2338 uhci_free_std_chain(sc, ii->stdstart, 0); 2339 2340 /* XXX Wasteful. */ 2341 if (xfer->pipe->repeat) { 2342 uhci_soft_td_t *data, *dataend; 2343 2344 /* This alloc cannot fail since we freed the chain above. */ 2345 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2346 &xfer->dmabuf, &data, &dataend); 2347 dataend->td.td_status |= LE(UHCI_TD_IOC); 2348 2349 #ifdef UHCI_DEBUG 2350 if (uhcidebug > 10) { 2351 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2352 uhci_dump_tds(data); 2353 uhci_dump_qh(upipe->u.intr.qhs[0]); 2354 } 2355 #endif 2356 2357 ii->stdstart = data; 2358 ii->stdend = dataend; 2359 #if defined(__FreeBSD__) 2360 callout_handle_init(&ii->timeout_handle); 2361 #endif 2362 #ifdef DIAGNOSTIC 2363 if (!ii->isdone) { 2364 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2365 } 2366 ii->isdone = 0; 2367 #endif 2368 for (i = 0; i < npoll; i++) { 2369 sqh = upipe->u.intr.qhs[i]; 2370 sqh->elink = data; 2371 sqh->qh.qh_elink = LE(data->physaddr); 2372 } 2373 } else { 2374 ii->stdstart = 0; /* mark as inactive */ 2375 } 2376 } 2377 2378 /* Deallocate request data structures */ 2379 void 2380 uhci_device_ctrl_done(xfer) 2381 usbd_xfer_handle xfer; 2382 { 2383 uhci_intr_info_t *ii = xfer->hcpriv; 2384 uhci_softc_t *sc = ii->sc; 2385 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2386 2387 #ifdef DIAGNOSTIC 2388 if (!(xfer->rqflags & URQ_REQUEST)) 2389 panic("uhci_ctrl_done: not a request\n"); 2390 #endif 2391 2392 LIST_REMOVE(ii, list); /* remove from active list */ 2393 2394 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2395 2396 if (upipe->u.ctl.length != 0) 2397 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2398 2399 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2400 } 2401 2402 /* Deallocate request data structures */ 2403 void 2404 uhci_device_bulk_done(xfer) 2405 usbd_xfer_handle xfer; 2406 { 2407 uhci_intr_info_t *ii = xfer->hcpriv; 2408 uhci_softc_t *sc = ii->sc; 2409 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2410 2411 LIST_REMOVE(ii, list); /* remove from active list */ 2412 2413 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2414 2415 uhci_free_std_chain(sc, ii->stdstart, 0); 2416 2417 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2418 } 2419 2420 /* Add interrupt QH, called with vflock. */ 2421 void 2422 uhci_add_intr(sc, n, sqh) 2423 uhci_softc_t *sc; 2424 int n; 2425 uhci_soft_qh_t *sqh; 2426 { 2427 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2428 uhci_soft_qh_t *eqh; 2429 2430 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2431 eqh = vf->eqh; 2432 sqh->hlink = eqh->hlink; 2433 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2434 eqh->hlink = sqh; 2435 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2436 vf->eqh = sqh; 2437 vf->bandwidth++; 2438 } 2439 2440 /* Remove interrupt QH, called with vflock. */ 2441 void 2442 uhci_remove_intr(sc, n, sqh) 2443 uhci_softc_t *sc; 2444 int n; 2445 uhci_soft_qh_t *sqh; 2446 { 2447 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2448 uhci_soft_qh_t *pqh; 2449 2450 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2451 2452 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2453 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2454 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2455 DPRINTF(("uhci_remove_intr: QH not found\n")); 2456 return; 2457 } 2458 #else 2459 ; 2460 #endif 2461 pqh->hlink = sqh->hlink; 2462 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2463 if (vf->eqh == sqh) 2464 vf->eqh = pqh; 2465 vf->bandwidth--; 2466 } 2467 2468 usbd_status 2469 uhci_device_setintr(sc, upipe, ival) 2470 uhci_softc_t *sc; 2471 struct uhci_pipe *upipe; 2472 int ival; 2473 { 2474 uhci_soft_qh_t *sqh; 2475 int i, npoll, s; 2476 u_int bestbw, bw, bestoffs, offs; 2477 2478 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2479 if (ival == 0) { 2480 printf("uhci_setintr: 0 interval\n"); 2481 return (USBD_INVAL); 2482 } 2483 2484 if (ival > UHCI_VFRAMELIST_COUNT) 2485 ival = UHCI_VFRAMELIST_COUNT; 2486 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2487 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2488 2489 upipe->u.intr.npoll = npoll; 2490 upipe->u.intr.qhs = 2491 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2492 2493 /* 2494 * Figure out which offset in the schedule that has most 2495 * bandwidth left over. 2496 */ 2497 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2498 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2499 for (bw = i = 0; i < npoll; i++) 2500 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2501 if (bw < bestbw) { 2502 bestbw = bw; 2503 bestoffs = offs; 2504 } 2505 } 2506 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2507 2508 upipe->iinfo->stdstart = 0; 2509 for(i = 0; i < npoll; i++) { 2510 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2511 sqh->elink = 0; 2512 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2513 sqh->pos = MOD(i * ival + bestoffs); 2514 sqh->intr_info = upipe->iinfo; 2515 } 2516 #undef MOD 2517 2518 s = splusb(); 2519 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2520 splx(s); 2521 2522 uhci_lock_frames(sc); 2523 /* Enter QHs into the controller data structures. */ 2524 for(i = 0; i < npoll; i++) 2525 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2526 upipe->u.intr.qhs[i]); 2527 uhci_unlock_frames(sc); 2528 2529 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2530 return (USBD_NORMAL_COMPLETION); 2531 } 2532 2533 /* Open a new pipe. */ 2534 usbd_status 2535 uhci_open(pipe) 2536 usbd_pipe_handle pipe; 2537 { 2538 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2539 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2540 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2541 usbd_status err; 2542 int ival; 2543 2544 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2545 pipe, pipe->device->address, 2546 ed->bEndpointAddress, sc->sc_addr)); 2547 if (pipe->device->address == sc->sc_addr) { 2548 switch (ed->bEndpointAddress) { 2549 case USB_CONTROL_ENDPOINT: 2550 pipe->methods = &uhci_root_ctrl_methods; 2551 break; 2552 case UE_DIR_IN | UHCI_INTR_ENDPT: 2553 pipe->methods = &uhci_root_intr_methods; 2554 break; 2555 default: 2556 return (USBD_INVAL); 2557 } 2558 } else { 2559 upipe->iinfo = uhci_alloc_intr_info(sc); 2560 if (upipe->iinfo == 0) 2561 return (USBD_NOMEM); 2562 switch (ed->bmAttributes & UE_XFERTYPE) { 2563 case UE_CONTROL: 2564 pipe->methods = &uhci_device_ctrl_methods; 2565 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2566 if (upipe->u.ctl.sqh == NULL) 2567 goto bad; 2568 upipe->u.ctl.setup = uhci_alloc_std(sc); 2569 if (upipe->u.ctl.setup == NULL) { 2570 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2571 goto bad; 2572 } 2573 upipe->u.ctl.stat = uhci_alloc_std(sc); 2574 if (upipe->u.ctl.stat == NULL) { 2575 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2576 uhci_free_std(sc, upipe->u.ctl.setup); 2577 goto bad; 2578 } 2579 err = usb_allocmem(&sc->sc_bus, 2580 sizeof(usb_device_request_t), 2581 0, &upipe->u.ctl.reqdma); 2582 if (err) { 2583 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2584 uhci_free_std(sc, upipe->u.ctl.setup); 2585 uhci_free_std(sc, upipe->u.ctl.stat); 2586 goto bad; 2587 } 2588 break; 2589 case UE_INTERRUPT: 2590 pipe->methods = &uhci_device_intr_methods; 2591 ival = pipe->interval; 2592 if (ival == USBD_DEFAULT_INTERVAL) 2593 ival = ed->bInterval; 2594 return (uhci_device_setintr(sc, upipe, ival)); 2595 case UE_ISOCHRONOUS: 2596 pipe->methods = &uhci_device_isoc_methods; 2597 return (uhci_setup_isoc(pipe)); 2598 case UE_BULK: 2599 pipe->methods = &uhci_device_bulk_methods; 2600 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2601 if (upipe->u.bulk.sqh == NULL) 2602 goto bad; 2603 break; 2604 } 2605 } 2606 return (USBD_NORMAL_COMPLETION); 2607 2608 bad: 2609 uhci_free_intr_info(upipe->iinfo); 2610 return (USBD_NOMEM); 2611 } 2612 2613 /* 2614 * Data structures and routines to emulate the root hub. 2615 */ 2616 usb_device_descriptor_t uhci_devd = { 2617 USB_DEVICE_DESCRIPTOR_SIZE, 2618 UDESC_DEVICE, /* type */ 2619 {0x00, 0x01}, /* USB version */ 2620 UCLASS_HUB, /* class */ 2621 USUBCLASS_HUB, /* subclass */ 2622 0, /* protocol */ 2623 64, /* max packet */ 2624 {0},{0},{0x00,0x01}, /* device id */ 2625 1,2,0, /* string indicies */ 2626 1 /* # of configurations */ 2627 }; 2628 2629 usb_config_descriptor_t uhci_confd = { 2630 USB_CONFIG_DESCRIPTOR_SIZE, 2631 UDESC_CONFIG, 2632 {USB_CONFIG_DESCRIPTOR_SIZE + 2633 USB_INTERFACE_DESCRIPTOR_SIZE + 2634 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2635 1, 2636 1, 2637 0, 2638 UC_SELF_POWERED, 2639 0 /* max power */ 2640 }; 2641 2642 usb_interface_descriptor_t uhci_ifcd = { 2643 USB_INTERFACE_DESCRIPTOR_SIZE, 2644 UDESC_INTERFACE, 2645 0, 2646 0, 2647 1, 2648 UCLASS_HUB, 2649 USUBCLASS_HUB, 2650 0, 2651 0 2652 }; 2653 2654 usb_endpoint_descriptor_t uhci_endpd = { 2655 USB_ENDPOINT_DESCRIPTOR_SIZE, 2656 UDESC_ENDPOINT, 2657 UE_DIR_IN | UHCI_INTR_ENDPT, 2658 UE_INTERRUPT, 2659 {8}, 2660 255 2661 }; 2662 2663 usb_hub_descriptor_t uhci_hubd_piix = { 2664 USB_HUB_DESCRIPTOR_SIZE, 2665 UDESC_HUB, 2666 2, 2667 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2668 50, /* power on to power good */ 2669 0, 2670 { 0x00 }, /* both ports are removable */ 2671 }; 2672 2673 int 2674 uhci_str(p, l, s) 2675 usb_string_descriptor_t *p; 2676 int l; 2677 char *s; 2678 { 2679 int i; 2680 2681 if (l == 0) 2682 return (0); 2683 p->bLength = 2 * strlen(s) + 2; 2684 if (l == 1) 2685 return (1); 2686 p->bDescriptorType = UDESC_STRING; 2687 l -= 2; 2688 for (i = 0; s[i] && l > 1; i++, l -= 2) 2689 USETW2(p->bString[i], 0, s[i]); 2690 return (2*i+2); 2691 } 2692 2693 /* 2694 * Simulate a hardware hub by handling all the necessary requests. 2695 */ 2696 usbd_status 2697 uhci_root_ctrl_transfer(xfer) 2698 usbd_xfer_handle xfer; 2699 { 2700 usbd_status err; 2701 2702 /* Insert last in queue. */ 2703 err = usb_insert_transfer(xfer); 2704 if (err) 2705 return (err); 2706 2707 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2708 * start first 2709 */ 2710 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2711 } 2712 2713 usbd_status 2714 uhci_root_ctrl_start(xfer) 2715 usbd_xfer_handle xfer; 2716 { 2717 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2718 usb_device_request_t *req; 2719 void *buf = NULL; 2720 int port, x; 2721 int s, len, value, index, status, change, l, totlen = 0; 2722 usb_port_status_t ps; 2723 usbd_status err; 2724 2725 if (sc->sc_dying) 2726 return (USBD_IOERROR); 2727 2728 #ifdef DIAGNOSTIC 2729 if (!(xfer->rqflags & URQ_REQUEST)) 2730 panic("uhci_root_ctrl_transfer: not a request\n"); 2731 #endif 2732 req = &xfer->request; 2733 2734 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2735 req->bmRequestType, req->bRequest)); 2736 2737 len = UGETW(req->wLength); 2738 value = UGETW(req->wValue); 2739 index = UGETW(req->wIndex); 2740 2741 if (len != 0) 2742 buf = KERNADDR(&xfer->dmabuf); 2743 2744 #define C(x,y) ((x) | ((y) << 8)) 2745 switch(C(req->bRequest, req->bmRequestType)) { 2746 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2747 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2748 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2749 /* 2750 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2751 * for the integrated root hub. 2752 */ 2753 break; 2754 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2755 if (len > 0) { 2756 *(u_int8_t *)buf = sc->sc_conf; 2757 totlen = 1; 2758 } 2759 break; 2760 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2761 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2762 switch(value >> 8) { 2763 case UDESC_DEVICE: 2764 if ((value & 0xff) != 0) { 2765 err = USBD_IOERROR; 2766 goto ret; 2767 } 2768 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2769 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2770 memcpy(buf, &uhci_devd, l); 2771 break; 2772 case UDESC_CONFIG: 2773 if ((value & 0xff) != 0) { 2774 err = USBD_IOERROR; 2775 goto ret; 2776 } 2777 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2778 memcpy(buf, &uhci_confd, l); 2779 buf = (char *)buf + l; 2780 len -= l; 2781 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2782 totlen += l; 2783 memcpy(buf, &uhci_ifcd, l); 2784 buf = (char *)buf + l; 2785 len -= l; 2786 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2787 totlen += l; 2788 memcpy(buf, &uhci_endpd, l); 2789 break; 2790 case UDESC_STRING: 2791 if (len == 0) 2792 break; 2793 *(u_int8_t *)buf = 0; 2794 totlen = 1; 2795 switch (value & 0xff) { 2796 case 1: /* Vendor */ 2797 totlen = uhci_str(buf, len, sc->sc_vendor); 2798 break; 2799 case 2: /* Product */ 2800 totlen = uhci_str(buf, len, "UHCI root hub"); 2801 break; 2802 } 2803 break; 2804 default: 2805 err = USBD_IOERROR; 2806 goto ret; 2807 } 2808 break; 2809 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2810 if (len > 0) { 2811 *(u_int8_t *)buf = 0; 2812 totlen = 1; 2813 } 2814 break; 2815 case C(UR_GET_STATUS, UT_READ_DEVICE): 2816 if (len > 1) { 2817 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2818 totlen = 2; 2819 } 2820 break; 2821 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2822 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2823 if (len > 1) { 2824 USETW(((usb_status_t *)buf)->wStatus, 0); 2825 totlen = 2; 2826 } 2827 break; 2828 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2829 if (value >= USB_MAX_DEVICES) { 2830 err = USBD_IOERROR; 2831 goto ret; 2832 } 2833 sc->sc_addr = value; 2834 break; 2835 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2836 if (value != 0 && value != 1) { 2837 err = USBD_IOERROR; 2838 goto ret; 2839 } 2840 sc->sc_conf = value; 2841 break; 2842 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2843 break; 2844 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2845 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2846 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2847 err = USBD_IOERROR; 2848 goto ret; 2849 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2850 break; 2851 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2852 break; 2853 /* Hub requests */ 2854 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2855 break; 2856 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2857 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2858 "port=%d feature=%d\n", 2859 index, value)); 2860 if (index == 1) 2861 port = UHCI_PORTSC1; 2862 else if (index == 2) 2863 port = UHCI_PORTSC2; 2864 else { 2865 err = USBD_IOERROR; 2866 goto ret; 2867 } 2868 switch(value) { 2869 case UHF_PORT_ENABLE: 2870 x = UREAD2(sc, port); 2871 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2872 break; 2873 case UHF_PORT_SUSPEND: 2874 x = UREAD2(sc, port); 2875 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2876 break; 2877 case UHF_PORT_RESET: 2878 x = UREAD2(sc, port); 2879 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2880 break; 2881 case UHF_C_PORT_CONNECTION: 2882 x = UREAD2(sc, port); 2883 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2884 break; 2885 case UHF_C_PORT_ENABLE: 2886 x = UREAD2(sc, port); 2887 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2888 break; 2889 case UHF_C_PORT_OVER_CURRENT: 2890 x = UREAD2(sc, port); 2891 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2892 break; 2893 case UHF_C_PORT_RESET: 2894 sc->sc_isreset = 0; 2895 err = USBD_NORMAL_COMPLETION; 2896 goto ret; 2897 case UHF_PORT_CONNECTION: 2898 case UHF_PORT_OVER_CURRENT: 2899 case UHF_PORT_POWER: 2900 case UHF_PORT_LOW_SPEED: 2901 case UHF_C_PORT_SUSPEND: 2902 default: 2903 err = USBD_IOERROR; 2904 goto ret; 2905 } 2906 break; 2907 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2908 if (index == 1) 2909 port = UHCI_PORTSC1; 2910 else if (index == 2) 2911 port = UHCI_PORTSC2; 2912 else { 2913 err = USBD_IOERROR; 2914 goto ret; 2915 } 2916 if (len > 0) { 2917 *(u_int8_t *)buf = 2918 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2919 UHCI_PORTSC_LS_SHIFT; 2920 totlen = 1; 2921 } 2922 break; 2923 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2924 if (value != 0) { 2925 err = USBD_IOERROR; 2926 goto ret; 2927 } 2928 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2929 totlen = l; 2930 memcpy(buf, &uhci_hubd_piix, l); 2931 break; 2932 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2933 if (len != 4) { 2934 err = USBD_IOERROR; 2935 goto ret; 2936 } 2937 memset(buf, 0, len); 2938 totlen = len; 2939 break; 2940 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2941 if (index == 1) 2942 port = UHCI_PORTSC1; 2943 else if (index == 2) 2944 port = UHCI_PORTSC2; 2945 else { 2946 err = USBD_IOERROR; 2947 goto ret; 2948 } 2949 if (len != 4) { 2950 err = USBD_IOERROR; 2951 goto ret; 2952 } 2953 x = UREAD2(sc, port); 2954 status = change = 0; 2955 if (x & UHCI_PORTSC_CCS ) 2956 status |= UPS_CURRENT_CONNECT_STATUS; 2957 if (x & UHCI_PORTSC_CSC ) 2958 change |= UPS_C_CONNECT_STATUS; 2959 if (x & UHCI_PORTSC_PE ) 2960 status |= UPS_PORT_ENABLED; 2961 if (x & UHCI_PORTSC_POEDC) 2962 change |= UPS_C_PORT_ENABLED; 2963 if (x & UHCI_PORTSC_OCI ) 2964 status |= UPS_OVERCURRENT_INDICATOR; 2965 if (x & UHCI_PORTSC_OCIC ) 2966 change |= UPS_C_OVERCURRENT_INDICATOR; 2967 if (x & UHCI_PORTSC_SUSP ) 2968 status |= UPS_SUSPEND; 2969 if (x & UHCI_PORTSC_LSDA ) 2970 status |= UPS_LOW_SPEED; 2971 status |= UPS_PORT_POWER; 2972 if (sc->sc_isreset) 2973 change |= UPS_C_PORT_RESET; 2974 USETW(ps.wPortStatus, status); 2975 USETW(ps.wPortChange, change); 2976 l = min(len, sizeof ps); 2977 memcpy(buf, &ps, l); 2978 totlen = l; 2979 break; 2980 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2981 err = USBD_IOERROR; 2982 goto ret; 2983 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2984 break; 2985 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2986 if (index == 1) 2987 port = UHCI_PORTSC1; 2988 else if (index == 2) 2989 port = UHCI_PORTSC2; 2990 else { 2991 err = USBD_IOERROR; 2992 goto ret; 2993 } 2994 switch(value) { 2995 case UHF_PORT_ENABLE: 2996 x = UREAD2(sc, port); 2997 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2998 break; 2999 case UHF_PORT_SUSPEND: 3000 x = UREAD2(sc, port); 3001 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3002 break; 3003 case UHF_PORT_RESET: 3004 x = UREAD2(sc, port); 3005 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3006 usb_delay_ms(&sc->sc_bus, 10); 3007 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3008 delay(100); 3009 x = UREAD2(sc, port); 3010 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3011 delay(100); 3012 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3013 index, UREAD2(sc, port))); 3014 sc->sc_isreset = 1; 3015 break; 3016 case UHF_C_PORT_CONNECTION: 3017 case UHF_C_PORT_ENABLE: 3018 case UHF_C_PORT_OVER_CURRENT: 3019 case UHF_PORT_CONNECTION: 3020 case UHF_PORT_OVER_CURRENT: 3021 case UHF_PORT_POWER: 3022 case UHF_PORT_LOW_SPEED: 3023 case UHF_C_PORT_SUSPEND: 3024 case UHF_C_PORT_RESET: 3025 default: 3026 err = USBD_IOERROR; 3027 goto ret; 3028 } 3029 break; 3030 default: 3031 err = USBD_IOERROR; 3032 goto ret; 3033 } 3034 xfer->actlen = totlen; 3035 err = USBD_NORMAL_COMPLETION; 3036 ret: 3037 xfer->status = err; 3038 xfer->hcpriv = 0; 3039 s = splusb(); 3040 usb_transfer_complete(xfer); 3041 splx(s); 3042 return (USBD_IN_PROGRESS); 3043 } 3044 3045 /* Abort a root control request. */ 3046 void 3047 uhci_root_ctrl_abort(xfer) 3048 usbd_xfer_handle xfer; 3049 { 3050 /* Nothing to do, all transfers are synchronous. */ 3051 } 3052 3053 /* Close the root pipe. */ 3054 void 3055 uhci_root_ctrl_close(pipe) 3056 usbd_pipe_handle pipe; 3057 { 3058 DPRINTF(("uhci_root_ctrl_close\n")); 3059 } 3060 3061 /* Abort a root interrupt request. */ 3062 void 3063 uhci_root_intr_abort(xfer) 3064 usbd_xfer_handle xfer; 3065 { 3066 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3067 3068 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3069 sc->sc_has_timo = NULL; 3070 3071 if (xfer->pipe->intrxfer == xfer) { 3072 DPRINTF(("uhci_root_intr_abort: remove\n")); 3073 xfer->pipe->intrxfer = 0; 3074 } 3075 xfer->status = USBD_CANCELLED; 3076 usb_transfer_complete(xfer); 3077 } 3078 3079 usbd_status 3080 uhci_root_intr_transfer(xfer) 3081 usbd_xfer_handle xfer; 3082 { 3083 usbd_status err; 3084 3085 /* Insert last in queue. */ 3086 err = usb_insert_transfer(xfer); 3087 if (err) 3088 return (err); 3089 3090 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3091 * start first 3092 */ 3093 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3094 } 3095 3096 /* Start a transfer on the root interrupt pipe */ 3097 usbd_status 3098 uhci_root_intr_start(xfer) 3099 usbd_xfer_handle xfer; 3100 { 3101 usbd_pipe_handle pipe = xfer->pipe; 3102 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3103 3104 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3105 xfer, xfer->length, xfer->flags)); 3106 3107 if (sc->sc_dying) 3108 return (USBD_IOERROR); 3109 3110 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3111 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3112 sc->sc_has_timo = xfer; 3113 return (USBD_IN_PROGRESS); 3114 } 3115 3116 /* Close the root interrupt pipe. */ 3117 void 3118 uhci_root_intr_close(pipe) 3119 usbd_pipe_handle pipe; 3120 { 3121 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3122 3123 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3124 sc->sc_has_timo = NULL; 3125 DPRINTF(("uhci_root_intr_close\n")); 3126 } 3127
Indexes created Tue Sep 23 07:09:52 GMT 2025