uhci.c revision 1.83
1 /* $NetBSD: uhci.c,v 1.83 2000/01/28 00:15:54 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 there's an active TD the xfer isn't done. */ 1053 if (status & UHCI_TD_ACTIVE) 1054 break; 1055 /* Any kind of error makes the xfer done. */ 1056 if (status & UHCI_TD_STALLED) 1057 goto done; 1058 /* We want short packets, and it is short: it's done */ 1059 if ((status & UHCI_TD_SPD) && 1060 UHCI_TD_GET_ACTLEN(status) < 1061 UHCI_TD_GET_MAXLEN(LE(std->td.td_token))) 1062 goto done; 1063 } 1064 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1065 ii, ii->stdstart)); 1066 return; 1067 } 1068 done: 1069 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1070 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1071 uhci_idone(ii); 1072 } 1073 1074 /* Called at splusb() */ 1075 void 1076 uhci_idone(ii) 1077 uhci_intr_info_t *ii; 1078 { 1079 usbd_xfer_handle xfer = ii->xfer; 1080 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1081 uhci_soft_td_t *std; 1082 u_int32_t status = 0, nstatus; 1083 int actlen; 1084 1085 #ifdef DIAGNOSTIC 1086 { 1087 int s = splhigh(); 1088 if (ii->isdone) { 1089 splx(s); 1090 printf("uhci_idone: ii=%p is done!\n", ii); 1091 return; 1092 } 1093 ii->isdone = 1; 1094 splx(s); 1095 } 1096 #endif 1097 1098 if (xfer->status == USBD_CANCELLED || 1099 xfer->status == USBD_TIMEOUT) { 1100 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1101 return; 1102 } 1103 1104 if (xfer->nframes != 0) { 1105 /* Isoc transfer, do things differently. */ 1106 uhci_soft_td_t **stds = upipe->u.iso.stds; 1107 int i, n, nframes; 1108 1109 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1110 1111 nframes = xfer->nframes; 1112 actlen = 0; 1113 n = xfer->hcprivint; 1114 for (i = 0; i < nframes; i++) { 1115 std = stds[n]; 1116 #ifdef UHCI_DEBUG 1117 if (uhcidebug > 5) { 1118 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1119 uhci_dump_td(std); 1120 } 1121 #endif 1122 if (++n >= UHCI_VFRAMELIST_COUNT) 1123 n = 0; 1124 status = LE(std->td.td_status); 1125 actlen += UHCI_TD_GET_ACTLEN(status); 1126 } 1127 upipe->u.iso.inuse -= nframes; 1128 xfer->actlen = actlen; 1129 xfer->status = USBD_NORMAL_COMPLETION; 1130 xfer->hcpriv = ii; 1131 usb_transfer_complete(xfer); 1132 return; 1133 } 1134 1135 #ifdef UHCI_DEBUG 1136 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1137 ii, xfer, upipe)); 1138 if (uhcidebug > 10) 1139 uhci_dump_tds(ii->stdstart); 1140 #endif 1141 1142 /* The transfer is done, compute actual length and status. */ 1143 actlen = 0; 1144 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1145 nstatus = LE(std->td.td_status); 1146 if (nstatus & UHCI_TD_ACTIVE) 1147 break; 1148 1149 status = nstatus; 1150 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1151 actlen += UHCI_TD_GET_ACTLEN(status); 1152 } 1153 /* If there are left over TDs we need to update the toggle. */ 1154 if (std != NULL) 1155 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1156 1157 status &= UHCI_TD_ERROR; 1158 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1159 actlen, status)); 1160 xfer->actlen = actlen; 1161 if (status != 0) { 1162 DPRINTFN((status == UHCI_TD_STALLED)*10, 1163 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1164 "status 0x%b\n", 1165 xfer->pipe->device->address, 1166 xfer->pipe->endpoint->edesc->bEndpointAddress, 1167 (int)status, 1168 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1169 "STALLED\30ACTIVE")); 1170 if (status == UHCI_TD_STALLED) 1171 xfer->status = USBD_STALLED; 1172 else 1173 xfer->status = USBD_IOERROR; /* more info XXX */ 1174 } else { 1175 xfer->status = USBD_NORMAL_COMPLETION; 1176 } 1177 xfer->hcpriv = ii; 1178 usb_transfer_complete(xfer); 1179 } 1180 1181 /* 1182 * Called when a request does not complete. 1183 */ 1184 void 1185 uhci_timeout(addr) 1186 void *addr; 1187 { 1188 uhci_intr_info_t *ii = addr; 1189 1190 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1191 1192 #ifdef UHCI_DEBUG 1193 if (uhcidebug > 10) 1194 uhci_dump_tds(ii->stdstart); 1195 #endif 1196 1197 ii->xfer->device->bus->intr_context++; 1198 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1199 ii->xfer->device->bus->intr_context--; 1200 } 1201 1202 /* 1203 * Wait here until controller claims to have an interrupt. 1204 * Then call uhci_intr and return. Use timeout to avoid waiting 1205 * too long. 1206 * Only used during boot when interrupts are not enabled yet. 1207 */ 1208 void 1209 uhci_waitintr(sc, xfer) 1210 uhci_softc_t *sc; 1211 usbd_xfer_handle xfer; 1212 { 1213 int timo = xfer->timeout; 1214 uhci_intr_info_t *ii; 1215 1216 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1217 1218 xfer->status = USBD_IN_PROGRESS; 1219 for (; timo >= 0; timo--) { 1220 usb_delay_ms(&sc->sc_bus, 1); 1221 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1222 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1223 uhci_intr(sc); 1224 if (xfer->status != USBD_IN_PROGRESS) 1225 return; 1226 } 1227 } 1228 1229 /* Timeout */ 1230 DPRINTF(("uhci_waitintr: timeout\n")); 1231 for (ii = LIST_FIRST(&sc->sc_intrhead); 1232 ii != NULL && ii->xfer != xfer; 1233 ii = LIST_NEXT(ii, list)) 1234 ; 1235 #ifdef DIAGNOSTIC 1236 if (ii == NULL) 1237 panic("uhci_waitintr: lost intr_info\n"); 1238 #endif 1239 uhci_idone(ii); 1240 } 1241 1242 void 1243 uhci_poll(bus) 1244 struct usbd_bus *bus; 1245 { 1246 uhci_softc_t *sc = (uhci_softc_t *)bus; 1247 1248 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1249 uhci_intr(sc); 1250 } 1251 1252 #if 0 1253 void 1254 uhci_reset(p) 1255 void *p; 1256 { 1257 uhci_softc_t *sc = p; 1258 int n; 1259 1260 UHCICMD(sc, UHCI_CMD_HCRESET); 1261 /* The reset bit goes low when the controller is done. */ 1262 for (n = 0; n < UHCI_RESET_TIMEOUT && 1263 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1264 delay(100); 1265 if (n >= UHCI_RESET_TIMEOUT) 1266 printf("%s: controller did not reset\n", 1267 USBDEVNAME(sc->sc_bus.bdev)); 1268 } 1269 #endif 1270 1271 usbd_status 1272 uhci_run(sc, run) 1273 uhci_softc_t *sc; 1274 int run; 1275 { 1276 int s, n, running; 1277 u_int16_t cmd; 1278 1279 run = run != 0; 1280 s = splusb(); 1281 DPRINTF(("uhci_run: setting run=%d\n", run)); 1282 cmd = UREAD2(sc, UHCI_CMD); 1283 if (run) 1284 cmd |= UHCI_CMD_RS; 1285 else 1286 cmd &= ~UHCI_CMD_RS; 1287 UHCICMD(sc, cmd); 1288 for(n = 0; n < 10; n++) { 1289 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1290 /* return when we've entered the state we want */ 1291 if (run == running) { 1292 splx(s); 1293 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1294 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1295 return (USBD_NORMAL_COMPLETION); 1296 } 1297 usb_delay_ms(&sc->sc_bus, 1); 1298 } 1299 splx(s); 1300 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1301 run ? "start" : "stop"); 1302 return (USBD_IOERROR); 1303 } 1304 1305 /* 1306 * Memory management routines. 1307 * uhci_alloc_std allocates TDs 1308 * uhci_alloc_sqh allocates QHs 1309 * These two routines do their own free list management, 1310 * partly for speed, partly because allocating DMAable memory 1311 * has page size granularaity so much memory would be wasted if 1312 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1313 */ 1314 1315 uhci_soft_td_t * 1316 uhci_alloc_std(sc) 1317 uhci_softc_t *sc; 1318 { 1319 uhci_soft_td_t *std; 1320 usbd_status err; 1321 int i, offs; 1322 usb_dma_t dma; 1323 1324 if (sc->sc_freetds == NULL) { 1325 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1326 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1327 UHCI_TD_ALIGN, &dma); 1328 if (err) 1329 return (0); 1330 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1331 offs = i * UHCI_STD_SIZE; 1332 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1333 std->physaddr = DMAADDR(&dma) + offs; 1334 std->link.std = sc->sc_freetds; 1335 sc->sc_freetds = std; 1336 } 1337 } 1338 std = sc->sc_freetds; 1339 sc->sc_freetds = std->link.std; 1340 memset(&std->td, 0, sizeof(uhci_td_t)); 1341 return std; 1342 } 1343 1344 void 1345 uhci_free_std(sc, std) 1346 uhci_softc_t *sc; 1347 uhci_soft_td_t *std; 1348 { 1349 #ifdef DIAGNOSTIC 1350 #define TD_IS_FREE 0x12345678 1351 if (std->td.td_token == LE(TD_IS_FREE)) { 1352 printf("uhci_free_std: freeing free TD %p\n", std); 1353 return; 1354 } 1355 std->td.td_token = LE(TD_IS_FREE); 1356 #endif 1357 std->link.std = sc->sc_freetds; 1358 sc->sc_freetds = std; 1359 } 1360 1361 uhci_soft_qh_t * 1362 uhci_alloc_sqh(sc) 1363 uhci_softc_t *sc; 1364 { 1365 uhci_soft_qh_t *sqh; 1366 usbd_status err; 1367 int i, offs; 1368 usb_dma_t dma; 1369 1370 if (sc->sc_freeqhs == NULL) { 1371 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1372 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1373 UHCI_QH_ALIGN, &dma); 1374 if (err) 1375 return (0); 1376 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1377 offs = i * UHCI_SQH_SIZE; 1378 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1379 sqh->physaddr = DMAADDR(&dma) + offs; 1380 sqh->hlink = sc->sc_freeqhs; 1381 sc->sc_freeqhs = sqh; 1382 } 1383 } 1384 sqh = sc->sc_freeqhs; 1385 sc->sc_freeqhs = sqh->hlink; 1386 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1387 return (sqh); 1388 } 1389 1390 void 1391 uhci_free_sqh(sc, sqh) 1392 uhci_softc_t *sc; 1393 uhci_soft_qh_t *sqh; 1394 { 1395 sqh->hlink = sc->sc_freeqhs; 1396 sc->sc_freeqhs = sqh; 1397 } 1398 1399 #if 0 1400 /* 1401 * Enter a list of transfers onto a control queue. 1402 * Called at splusb() 1403 */ 1404 void 1405 uhci_enter_ctl_q(sc, sqh, ii) 1406 uhci_softc_t *sc; 1407 uhci_soft_qh_t *sqh; 1408 uhci_intr_info_t *ii; 1409 { 1410 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1411 1412 } 1413 #endif 1414 1415 void 1416 uhci_free_std_chain(sc, std, stdend) 1417 uhci_softc_t *sc; 1418 uhci_soft_td_t *std; 1419 uhci_soft_td_t *stdend; 1420 { 1421 uhci_soft_td_t *p; 1422 1423 for (; std != stdend; std = p) { 1424 p = std->link.std; 1425 uhci_free_std(sc, std); 1426 } 1427 } 1428 1429 usbd_status 1430 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1431 struct uhci_pipe *upipe; 1432 uhci_softc_t *sc; 1433 int len, rd; 1434 u_int16_t flags; 1435 usb_dma_t *dma; 1436 uhci_soft_td_t **sp, **ep; 1437 { 1438 uhci_soft_td_t *p, *lastp; 1439 uhci_physaddr_t lastlink; 1440 int i, ntd, l, tog, maxp; 1441 u_int32_t status; 1442 int addr = upipe->pipe.device->address; 1443 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1444 1445 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1446 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1447 upipe->pipe.device->lowspeed, flags)); 1448 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1449 if (maxp == 0) { 1450 printf("uhci_alloc_std_chain: maxp=0\n"); 1451 return (USBD_INVAL); 1452 } 1453 ntd = (len + maxp - 1) / maxp; 1454 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1455 ntd++; 1456 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1457 if (ntd == 0) { 1458 *sp = *ep = 0; 1459 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1460 return (USBD_NORMAL_COMPLETION); 1461 } 1462 tog = upipe->nexttoggle; 1463 if (ntd % 2 == 0) 1464 tog ^= 1; 1465 upipe->nexttoggle = tog ^ 1; 1466 lastp = 0; 1467 lastlink = UHCI_PTR_T; 1468 ntd--; 1469 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1470 if (upipe->pipe.device->lowspeed) 1471 status |= UHCI_TD_LS; 1472 if (flags & USBD_SHORT_XFER_OK) 1473 status |= UHCI_TD_SPD; 1474 for (i = ntd; i >= 0; i--) { 1475 p = uhci_alloc_std(sc); 1476 if (p == NULL) { 1477 uhci_free_std_chain(sc, lastp, 0); 1478 return (USBD_NOMEM); 1479 } 1480 p->link.std = lastp; 1481 if (lastlink == UHCI_PTR_T) 1482 p->td.td_link = LE(lastlink); 1483 else 1484 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1485 lastp = p; 1486 lastlink = p->physaddr; 1487 p->td.td_status = LE(status); 1488 if (i == ntd) { 1489 /* last TD */ 1490 l = len % maxp; 1491 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1492 l = maxp; 1493 *ep = p; 1494 } else 1495 l = maxp; 1496 p->td.td_token = 1497 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1498 UHCI_TD_OUT(l, endpt, addr, tog)); 1499 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1500 tog ^= 1; 1501 } 1502 *sp = lastp; 1503 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1504 upipe->nexttoggle)); 1505 return (USBD_NORMAL_COMPLETION); 1506 } 1507 1508 void 1509 uhci_device_clear_toggle(pipe) 1510 usbd_pipe_handle pipe; 1511 { 1512 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1513 upipe->nexttoggle = 0; 1514 } 1515 1516 void 1517 uhci_noop(pipe) 1518 usbd_pipe_handle pipe; 1519 { 1520 } 1521 1522 usbd_status 1523 uhci_device_bulk_transfer(xfer) 1524 usbd_xfer_handle xfer; 1525 { 1526 usbd_status err; 1527 1528 /* Insert last in queue. */ 1529 err = usb_insert_transfer(xfer); 1530 if (err) 1531 return (err); 1532 1533 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1534 * start first 1535 */ 1536 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1537 } 1538 1539 usbd_status 1540 uhci_device_bulk_start(xfer) 1541 usbd_xfer_handle xfer; 1542 { 1543 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1544 usbd_device_handle dev = upipe->pipe.device; 1545 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1546 uhci_intr_info_t *ii = upipe->iinfo; 1547 uhci_soft_td_t *data, *dataend; 1548 uhci_soft_qh_t *sqh; 1549 usbd_status err; 1550 int len, isread, endpt; 1551 int s; 1552 1553 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1554 xfer, xfer->length, xfer->flags)); 1555 1556 if (sc->sc_dying) 1557 return (USBD_IOERROR); 1558 1559 #ifdef DIAGNOSTIC 1560 if (xfer->rqflags & URQ_REQUEST) 1561 panic("uhci_device_bulk_transfer: a request\n"); 1562 #endif 1563 1564 len = xfer->length; 1565 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1566 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1567 sqh = upipe->u.bulk.sqh; 1568 1569 upipe->u.bulk.isread = isread; 1570 upipe->u.bulk.length = len; 1571 1572 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1573 &xfer->dmabuf, &data, &dataend); 1574 if (err) 1575 return (err); 1576 dataend->td.td_status |= LE(UHCI_TD_IOC); 1577 1578 #ifdef UHCI_DEBUG 1579 if (uhcidebug > 8) { 1580 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1581 uhci_dump_tds(data); 1582 } 1583 #endif 1584 1585 /* Set up interrupt info. */ 1586 ii->xfer = xfer; 1587 ii->stdstart = data; 1588 ii->stdend = dataend; 1589 #if defined(__FreeBSD__) 1590 callout_handle_init(&ii->timeout_handle); 1591 #endif 1592 #ifdef DIAGNOSTIC 1593 if (!ii->isdone) { 1594 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1595 } 1596 ii->isdone = 0; 1597 #endif 1598 1599 sqh->elink = data; 1600 sqh->qh.qh_elink = LE(data->physaddr); 1601 sqh->intr_info = ii; 1602 1603 s = splusb(); 1604 uhci_add_bulk(sc, sqh); 1605 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1606 1607 if (xfer->timeout && !sc->sc_bus.use_polling) { 1608 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1609 ii->timeout_handle); 1610 } 1611 splx(s); 1612 1613 #ifdef UHCI_DEBUG 1614 if (uhcidebug > 10) { 1615 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1616 uhci_dump_tds(data); 1617 } 1618 #endif 1619 1620 if (sc->sc_bus.use_polling) 1621 uhci_waitintr(sc, xfer); 1622 1623 return (USBD_IN_PROGRESS); 1624 } 1625 1626 /* Abort a device bulk request. */ 1627 void 1628 uhci_device_bulk_abort(xfer) 1629 usbd_xfer_handle xfer; 1630 { 1631 DPRINTF(("uhci_device_bulk_abort:\n")); 1632 uhci_abort_xfer(xfer, USBD_CANCELLED); 1633 } 1634 1635 void 1636 uhci_abort_xfer(xfer, status) 1637 usbd_xfer_handle xfer; 1638 usbd_status status; 1639 { 1640 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1641 uhci_intr_info_t *ii = upipe->iinfo; 1642 uhci_soft_td_t *std; 1643 1644 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1645 1646 /* Make interrupt routine ignore it, */ 1647 xfer->status = status; 1648 1649 /* don't timeout, */ 1650 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1651 1652 /* make hardware ignore it, */ 1653 for (std = ii->stdstart; std != 0; std = std->link.std) 1654 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1655 1656 xfer->hcpriv = ii; 1657 1658 #if 1 1659 /* Make sure hardware has completed. */ 1660 if (xfer->device->bus->intr_context) { 1661 /* We have no process context, so we can't use tsleep(). */ 1662 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1663 } else { 1664 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1665 KASSERT(intr_nesting_level == 0, 1666 ("ohci_abort_req in interrupt context")); 1667 #endif 1668 usb_delay_ms(xfer->pipe->device->bus, 1); 1669 /* and call final part of interrupt handler. */ 1670 uhci_abort_xfer_end(xfer); 1671 } 1672 #else 1673 delay(1000); 1674 uhci_abort_xfer_end(xfer); 1675 #endif 1676 } 1677 1678 void 1679 uhci_abort_xfer_end(v) 1680 void *v; 1681 { 1682 usbd_xfer_handle xfer = v; 1683 int s; 1684 1685 s = splusb(); 1686 usb_transfer_complete(xfer); 1687 splx(s); 1688 } 1689 1690 /* Close a device bulk pipe. */ 1691 void 1692 uhci_device_bulk_close(pipe) 1693 usbd_pipe_handle pipe; 1694 { 1695 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1696 usbd_device_handle dev = upipe->pipe.device; 1697 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1698 1699 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1700 uhci_free_intr_info(upipe->iinfo); 1701 /* XXX free other resources */ 1702 } 1703 1704 usbd_status 1705 uhci_device_ctrl_transfer(xfer) 1706 usbd_xfer_handle xfer; 1707 { 1708 usbd_status err; 1709 1710 /* Insert last in queue. */ 1711 err = usb_insert_transfer(xfer); 1712 if (err) 1713 return (err); 1714 1715 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1716 * start first 1717 */ 1718 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1719 } 1720 1721 usbd_status 1722 uhci_device_ctrl_start(xfer) 1723 usbd_xfer_handle xfer; 1724 { 1725 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1726 usbd_status err; 1727 1728 if (sc->sc_dying) 1729 return (USBD_IOERROR); 1730 1731 #ifdef DIAGNOSTIC 1732 if (!(xfer->rqflags & URQ_REQUEST)) 1733 panic("uhci_device_ctrl_transfer: not a request\n"); 1734 #endif 1735 1736 err = uhci_device_request(xfer); 1737 if (err) 1738 return (err); 1739 1740 if (sc->sc_bus.use_polling) 1741 uhci_waitintr(sc, xfer); 1742 return (USBD_IN_PROGRESS); 1743 } 1744 1745 usbd_status 1746 uhci_device_intr_transfer(xfer) 1747 usbd_xfer_handle xfer; 1748 { 1749 usbd_status err; 1750 1751 /* Insert last in queue. */ 1752 err = usb_insert_transfer(xfer); 1753 if (err) 1754 return (err); 1755 1756 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1757 * start first 1758 */ 1759 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1760 } 1761 1762 usbd_status 1763 uhci_device_intr_start(xfer) 1764 usbd_xfer_handle xfer; 1765 { 1766 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1767 usbd_device_handle dev = upipe->pipe.device; 1768 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1769 uhci_intr_info_t *ii = upipe->iinfo; 1770 uhci_soft_td_t *data, *dataend; 1771 uhci_soft_qh_t *sqh; 1772 usbd_status err; 1773 int i, s; 1774 1775 if (sc->sc_dying) 1776 return (USBD_IOERROR); 1777 1778 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1779 xfer, xfer->length, xfer->flags)); 1780 1781 #ifdef DIAGNOSTIC 1782 if (xfer->rqflags & URQ_REQUEST) 1783 panic("uhci_device_intr_transfer: a request\n"); 1784 #endif 1785 1786 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1787 &xfer->dmabuf, &data, &dataend); 1788 if (err) 1789 return (err); 1790 dataend->td.td_status |= LE(UHCI_TD_IOC); 1791 1792 #ifdef UHCI_DEBUG 1793 if (uhcidebug > 10) { 1794 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1795 uhci_dump_tds(data); 1796 uhci_dump_qh(upipe->u.intr.qhs[0]); 1797 } 1798 #endif 1799 1800 s = splusb(); 1801 /* Set up interrupt info. */ 1802 ii->xfer = xfer; 1803 ii->stdstart = data; 1804 ii->stdend = dataend; 1805 #if defined(__FreeBSD__) 1806 callout_handle_init(&ii->timeout_handle); 1807 #endif 1808 #ifdef DIAGNOSTIC 1809 if (!ii->isdone) { 1810 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1811 } 1812 ii->isdone = 0; 1813 #endif 1814 1815 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1816 upipe->u.intr.qhs[0])); 1817 for (i = 0; i < upipe->u.intr.npoll; i++) { 1818 sqh = upipe->u.intr.qhs[i]; 1819 sqh->elink = data; 1820 sqh->qh.qh_elink = LE(data->physaddr); 1821 } 1822 splx(s); 1823 1824 #ifdef UHCI_DEBUG 1825 if (uhcidebug > 10) { 1826 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1827 uhci_dump_tds(data); 1828 uhci_dump_qh(upipe->u.intr.qhs[0]); 1829 } 1830 #endif 1831 1832 return (USBD_IN_PROGRESS); 1833 } 1834 1835 /* Abort a device control request. */ 1836 void 1837 uhci_device_ctrl_abort(xfer) 1838 usbd_xfer_handle xfer; 1839 { 1840 DPRINTF(("uhci_device_ctrl_abort:\n")); 1841 uhci_abort_xfer(xfer, USBD_CANCELLED); 1842 } 1843 1844 /* Close a device control pipe. */ 1845 void 1846 uhci_device_ctrl_close(pipe) 1847 usbd_pipe_handle pipe; 1848 { 1849 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1850 1851 uhci_free_intr_info(upipe->iinfo); 1852 /* XXX free other resources? */ 1853 } 1854 1855 /* Abort a device interrupt request. */ 1856 void 1857 uhci_device_intr_abort(xfer) 1858 usbd_xfer_handle xfer; 1859 { 1860 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1861 if (xfer->pipe->intrxfer == xfer) { 1862 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1863 xfer->pipe->intrxfer = 0; 1864 } 1865 uhci_abort_xfer(xfer, USBD_CANCELLED); 1866 } 1867 1868 /* Close a device interrupt pipe. */ 1869 void 1870 uhci_device_intr_close(pipe) 1871 usbd_pipe_handle pipe; 1872 { 1873 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1874 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1875 int i, s, npoll; 1876 1877 upipe->iinfo->stdstart = 0; /* inactive */ 1878 1879 /* Unlink descriptors from controller data structures. */ 1880 npoll = upipe->u.intr.npoll; 1881 uhci_lock_frames(sc); 1882 for (i = 0; i < npoll; i++) 1883 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1884 upipe->u.intr.qhs[i]); 1885 uhci_unlock_frames(sc); 1886 1887 /* 1888 * We now have to wait for any activity on the physical 1889 * descriptors to stop. 1890 */ 1891 usb_delay_ms(&sc->sc_bus, 2); 1892 1893 for(i = 0; i < npoll; i++) 1894 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1895 free(upipe->u.intr.qhs, M_USBHC); 1896 1897 s = splusb(); 1898 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1899 splx(s); 1900 uhci_free_intr_info(upipe->iinfo); 1901 1902 /* XXX free other resources */ 1903 } 1904 1905 usbd_status 1906 uhci_device_request(xfer) 1907 usbd_xfer_handle xfer; 1908 { 1909 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1910 usb_device_request_t *req = &xfer->request; 1911 usbd_device_handle dev = upipe->pipe.device; 1912 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1913 int addr = dev->address; 1914 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1915 uhci_intr_info_t *ii = upipe->iinfo; 1916 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1917 uhci_soft_qh_t *sqh; 1918 int len; 1919 u_int32_t ls; 1920 usbd_status err; 1921 int isread; 1922 int s; 1923 1924 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1925 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1926 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1927 UGETW(req->wIndex), UGETW(req->wLength), 1928 addr, endpt)); 1929 1930 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1931 isread = req->bmRequestType & UT_READ; 1932 len = UGETW(req->wLength); 1933 1934 setup = upipe->u.ctl.setup; 1935 stat = upipe->u.ctl.stat; 1936 sqh = upipe->u.ctl.sqh; 1937 1938 /* Set up data transaction */ 1939 if (len != 0) { 1940 upipe->nexttoggle = 1; 1941 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1942 &xfer->dmabuf, &data, &dataend); 1943 if (err) 1944 return (err); 1945 next = data; 1946 dataend->link.std = stat; 1947 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1948 } else { 1949 next = stat; 1950 } 1951 upipe->u.ctl.length = len; 1952 1953 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1954 1955 setup->link.std = next; 1956 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1957 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1958 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1959 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1960 1961 stat->link.std = 0; 1962 stat->td.td_link = LE(UHCI_PTR_T); 1963 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1964 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1965 stat->td.td_token = 1966 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1967 UHCI_TD_IN (0, endpt, addr, 1)); 1968 stat->td.td_buffer = LE(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 #if defined(__FreeBSD__) 1982 callout_handle_init(&ii->timeout_handle); 1983 #endif 1984 #ifdef DIAGNOSTIC 1985 if (!ii->isdone) { 1986 printf("uhci_device_request: not done, ii=%p\n", ii); 1987 } 1988 ii->isdone = 0; 1989 #endif 1990 1991 sqh->elink = setup; 1992 sqh->qh.qh_elink = LE(setup->physaddr); 1993 sqh->intr_info = ii; 1994 1995 s = splusb(); 1996 uhci_add_ctrl(sc, sqh); 1997 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1998 #ifdef UHCI_DEBUG 1999 if (uhcidebug > 12) { 2000 uhci_soft_td_t *std; 2001 uhci_soft_qh_t *xqh; 2002 uhci_soft_qh_t *sxqh; 2003 int maxqh = 0; 2004 uhci_physaddr_t link; 2005 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2006 for (std = sc->sc_vframes[0].htd, link = 0; 2007 (link & UHCI_PTR_Q) == 0; 2008 std = std->link.std) { 2009 link = LE(std->td.td_link); 2010 uhci_dump_td(std); 2011 } 2012 sxqh = (uhci_soft_qh_t *)std; 2013 uhci_dump_qh(sxqh); 2014 for (xqh = sxqh; 2015 xqh != NULL; 2016 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2017 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2018 uhci_dump_qh(xqh); 2019 } 2020 DPRINTF(("Enqueued QH:\n")); 2021 uhci_dump_qh(sqh); 2022 uhci_dump_tds(sqh->elink); 2023 } 2024 #endif 2025 if (xfer->timeout && !sc->sc_bus.use_polling) { 2026 usb_timeout(uhci_timeout, ii, 2027 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2028 } 2029 splx(s); 2030 2031 return (USBD_NORMAL_COMPLETION); 2032 } 2033 2034 usbd_status 2035 uhci_device_isoc_transfer(xfer) 2036 usbd_xfer_handle xfer; 2037 { 2038 usbd_status err; 2039 2040 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2041 2042 /* Put it on our queue, */ 2043 err = usb_insert_transfer(xfer); 2044 2045 /* bail out on error, */ 2046 if (err && err != USBD_IN_PROGRESS) 2047 return (err); 2048 2049 /* XXX should check inuse here */ 2050 2051 /* insert into schedule, */ 2052 uhci_device_isoc_enter(xfer); 2053 2054 /* and put on interrupt list if the pipe wasn't running */ 2055 if (!err) 2056 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2057 2058 return (err); 2059 } 2060 2061 void 2062 uhci_device_isoc_enter(xfer) 2063 usbd_xfer_handle xfer; 2064 { 2065 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2066 usbd_device_handle dev = upipe->pipe.device; 2067 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2068 struct iso *iso = &upipe->u.iso; 2069 uhci_soft_td_t *std; 2070 u_int32_t buf, len, status; 2071 int s, i, next, nframes; 2072 2073 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2074 "nframes=%d\n", 2075 iso->inuse, iso->next, xfer, xfer->nframes)); 2076 2077 if (sc->sc_dying) 2078 return; 2079 2080 if (xfer->status == USBD_IN_PROGRESS) { 2081 /* This request has already been entered into the frame list */ 2082 /* XXX */ 2083 } 2084 2085 #ifdef DIAGNOSTIC 2086 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2087 printf("uhci_device_isoc_enter: overflow!\n"); 2088 #endif 2089 2090 next = iso->next; 2091 if (next == -1) { 2092 /* Not in use yet, schedule it a few frames ahead. */ 2093 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2094 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2095 } 2096 2097 xfer->status = USBD_IN_PROGRESS; 2098 xfer->hcprivint = next; 2099 2100 buf = DMAADDR(&xfer->dmabuf); 2101 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2102 UHCI_TD_ACTIVE | 2103 UHCI_TD_IOS)); 2104 nframes = xfer->nframes; 2105 s = splusb(); 2106 for (i = 0; i < nframes; i++) { 2107 std = iso->stds[next]; 2108 if (++next >= UHCI_VFRAMELIST_COUNT) 2109 next = 0; 2110 len = xfer->frlengths[i]; 2111 std->td.td_buffer = LE(buf); 2112 if (i == nframes - 1) 2113 status |= LE(UHCI_TD_IOC); 2114 std->td.td_status = status; 2115 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2116 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2117 #ifdef UHCI_DEBUG 2118 if (uhcidebug > 5) { 2119 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2120 uhci_dump_td(std); 2121 } 2122 #endif 2123 buf += len; 2124 } 2125 iso->next = next; 2126 iso->inuse += xfer->nframes; 2127 2128 splx(s); 2129 } 2130 2131 usbd_status 2132 uhci_device_isoc_start(xfer) 2133 usbd_xfer_handle xfer; 2134 { 2135 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2136 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2137 uhci_intr_info_t *ii = upipe->iinfo; 2138 uhci_soft_td_t *end; 2139 int s, i; 2140 2141 if (sc->sc_dying) 2142 return (USBD_IOERROR); 2143 2144 #ifdef DIAGNOSTIC 2145 if (xfer->status != USBD_IN_PROGRESS) 2146 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2147 #endif 2148 2149 /* Find the last TD */ 2150 i = xfer->hcprivint + xfer->nframes; 2151 if (i >= UHCI_VFRAMELIST_COUNT) 2152 i -= UHCI_VFRAMELIST_COUNT; 2153 end = upipe->u.iso.stds[i]; 2154 2155 s = splusb(); 2156 2157 /* Set up interrupt info. */ 2158 ii->xfer = xfer; 2159 ii->stdstart = end; 2160 ii->stdend = end; 2161 #if defined(__FreeBSD__) 2162 callout_handle_init(&ii->timeout_handle); 2163 #endif 2164 #ifdef DIAGNOSTIC 2165 if (!ii->isdone) { 2166 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2167 } 2168 ii->isdone = 0; 2169 #endif 2170 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2171 2172 splx(s); 2173 2174 return (USBD_IN_PROGRESS); 2175 } 2176 2177 void 2178 uhci_device_isoc_abort(xfer) 2179 usbd_xfer_handle xfer; 2180 { 2181 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2182 uhci_intr_info_t *ii = upipe->iinfo; 2183 uhci_soft_td_t **stds = upipe->u.iso.stds; 2184 uhci_soft_td_t *std; 2185 int i, n, nframes; 2186 2187 /* Make interrupt routine ignore it, */ 2188 xfer->status = USBD_CANCELLED; 2189 2190 /* make hardware ignore it, */ 2191 nframes = xfer->nframes; 2192 n = xfer->hcprivint; 2193 for (i = 0; i < nframes; i++) { 2194 std = stds[n]; 2195 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2196 if (++n >= UHCI_VFRAMELIST_COUNT) 2197 n = 0; 2198 } 2199 2200 xfer->hcpriv = ii; 2201 2202 /* make sure hardware has completed, */ 2203 if (xfer->device->bus->intr_context) { 2204 /* We have no process context, so we can't use tsleep(). */ 2205 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2206 } else { 2207 usb_delay_ms(xfer->pipe->device->bus, 1); 2208 /* and call final part of interrupt handler. */ 2209 uhci_abort_xfer_end(xfer); 2210 } 2211 } 2212 2213 void 2214 uhci_device_isoc_close(pipe) 2215 usbd_pipe_handle pipe; 2216 { 2217 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2218 usbd_device_handle dev = upipe->pipe.device; 2219 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2220 uhci_soft_td_t *std, *vstd; 2221 struct iso *iso; 2222 int i; 2223 2224 /* 2225 * Make sure all TDs are marked as inactive. 2226 * Wait for completion. 2227 * Unschedule. 2228 * Deallocate. 2229 */ 2230 iso = &upipe->u.iso; 2231 2232 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2233 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2234 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2235 2236 uhci_lock_frames(sc); 2237 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2238 std = iso->stds[i]; 2239 for (vstd = sc->sc_vframes[i].htd; 2240 vstd != NULL && vstd->link.std != std; 2241 vstd = vstd->link.std) 2242 ; 2243 if (vstd == NULL) { 2244 /*panic*/ 2245 printf("uhci_device_isoc_close: %p not found\n", std); 2246 uhci_unlock_frames(sc); 2247 return; 2248 } 2249 vstd->link = std->link; 2250 vstd->td.td_link = std->td.td_link; 2251 uhci_free_std(sc, std); 2252 } 2253 uhci_unlock_frames(sc); 2254 2255 free(iso->stds, M_USBHC); 2256 } 2257 2258 usbd_status 2259 uhci_setup_isoc(pipe) 2260 usbd_pipe_handle pipe; 2261 { 2262 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2263 usbd_device_handle dev = upipe->pipe.device; 2264 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2265 int addr = upipe->pipe.device->address; 2266 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2267 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2268 uhci_soft_td_t *std, *vstd; 2269 u_int32_t token; 2270 struct iso *iso; 2271 int i; 2272 2273 iso = &upipe->u.iso; 2274 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2275 M_USBHC, M_WAITOK); 2276 2277 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2278 UHCI_TD_OUT(0, endpt, addr, 0)); 2279 2280 /* Allocate the TDs and mark as inactive; */ 2281 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2282 std = uhci_alloc_std(sc); 2283 if (std == 0) 2284 goto bad; 2285 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2286 std->td.td_token = token; 2287 iso->stds[i] = std; 2288 } 2289 2290 /* Insert TDs into schedule. */ 2291 uhci_lock_frames(sc); 2292 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2293 std = iso->stds[i]; 2294 vstd = sc->sc_vframes[i].htd; 2295 std->link = vstd->link; 2296 std->td.td_link = vstd->td.td_link; 2297 vstd->link.std = std; 2298 vstd->td.td_link = LE(std->physaddr); 2299 } 2300 uhci_unlock_frames(sc); 2301 2302 iso->next = -1; 2303 iso->inuse = 0; 2304 2305 return (USBD_NORMAL_COMPLETION); 2306 2307 bad: 2308 while (--i >= 0) 2309 uhci_free_std(sc, iso->stds[i]); 2310 free(iso->stds, M_USBHC); 2311 return (USBD_NOMEM); 2312 } 2313 2314 void 2315 uhci_device_isoc_done(xfer) 2316 usbd_xfer_handle xfer; 2317 { 2318 uhci_intr_info_t *ii = xfer->hcpriv; 2319 2320 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2321 2322 /* Turn off the interrupt since it is active even if the TD is not. */ 2323 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2324 2325 LIST_REMOVE(ii, list); /* remove from active list */ 2326 } 2327 2328 void 2329 uhci_device_intr_done(xfer) 2330 usbd_xfer_handle xfer; 2331 { 2332 uhci_intr_info_t *ii = xfer->hcpriv; 2333 uhci_softc_t *sc = ii->sc; 2334 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2335 uhci_soft_qh_t *sqh; 2336 int i, npoll; 2337 2338 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2339 2340 npoll = upipe->u.intr.npoll; 2341 for(i = 0; i < npoll; i++) { 2342 sqh = upipe->u.intr.qhs[i]; 2343 sqh->elink = 0; 2344 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2345 } 2346 uhci_free_std_chain(sc, ii->stdstart, 0); 2347 2348 /* XXX Wasteful. */ 2349 if (xfer->pipe->repeat) { 2350 uhci_soft_td_t *data, *dataend; 2351 2352 /* This alloc cannot fail since we freed the chain above. */ 2353 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2354 &xfer->dmabuf, &data, &dataend); 2355 dataend->td.td_status |= LE(UHCI_TD_IOC); 2356 2357 #ifdef UHCI_DEBUG 2358 if (uhcidebug > 10) { 2359 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2360 uhci_dump_tds(data); 2361 uhci_dump_qh(upipe->u.intr.qhs[0]); 2362 } 2363 #endif 2364 2365 ii->stdstart = data; 2366 ii->stdend = dataend; 2367 #if defined(__FreeBSD__) 2368 callout_handle_init(&ii->timeout_handle); 2369 #endif 2370 #ifdef DIAGNOSTIC 2371 if (!ii->isdone) { 2372 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2373 } 2374 ii->isdone = 0; 2375 #endif 2376 for (i = 0; i < npoll; i++) { 2377 sqh = upipe->u.intr.qhs[i]; 2378 sqh->elink = data; 2379 sqh->qh.qh_elink = LE(data->physaddr); 2380 } 2381 } else { 2382 ii->stdstart = 0; /* mark as inactive */ 2383 } 2384 } 2385 2386 /* Deallocate request data structures */ 2387 void 2388 uhci_device_ctrl_done(xfer) 2389 usbd_xfer_handle xfer; 2390 { 2391 uhci_intr_info_t *ii = xfer->hcpriv; 2392 uhci_softc_t *sc = ii->sc; 2393 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2394 2395 #ifdef DIAGNOSTIC 2396 if (!(xfer->rqflags & URQ_REQUEST)) 2397 panic("uhci_ctrl_done: not a request\n"); 2398 #endif 2399 2400 LIST_REMOVE(ii, list); /* remove from active list */ 2401 2402 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2403 2404 if (upipe->u.ctl.length != 0) 2405 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2406 2407 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2408 } 2409 2410 /* Deallocate request data structures */ 2411 void 2412 uhci_device_bulk_done(xfer) 2413 usbd_xfer_handle xfer; 2414 { 2415 uhci_intr_info_t *ii = xfer->hcpriv; 2416 uhci_softc_t *sc = ii->sc; 2417 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2418 2419 LIST_REMOVE(ii, list); /* remove from active list */ 2420 2421 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2422 2423 uhci_free_std_chain(sc, ii->stdstart, 0); 2424 2425 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2426 } 2427 2428 /* Add interrupt QH, called with vflock. */ 2429 void 2430 uhci_add_intr(sc, n, sqh) 2431 uhci_softc_t *sc; 2432 int n; 2433 uhci_soft_qh_t *sqh; 2434 { 2435 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2436 uhci_soft_qh_t *eqh; 2437 2438 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2439 eqh = vf->eqh; 2440 sqh->hlink = eqh->hlink; 2441 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2442 eqh->hlink = sqh; 2443 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2444 vf->eqh = sqh; 2445 vf->bandwidth++; 2446 } 2447 2448 /* Remove interrupt QH, called with vflock. */ 2449 void 2450 uhci_remove_intr(sc, n, sqh) 2451 uhci_softc_t *sc; 2452 int n; 2453 uhci_soft_qh_t *sqh; 2454 { 2455 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2456 uhci_soft_qh_t *pqh; 2457 2458 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2459 2460 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2461 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2462 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2463 DPRINTF(("uhci_remove_intr: QH not found\n")); 2464 return; 2465 } 2466 #else 2467 ; 2468 #endif 2469 pqh->hlink = sqh->hlink; 2470 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2471 if (vf->eqh == sqh) 2472 vf->eqh = pqh; 2473 vf->bandwidth--; 2474 } 2475 2476 usbd_status 2477 uhci_device_setintr(sc, upipe, ival) 2478 uhci_softc_t *sc; 2479 struct uhci_pipe *upipe; 2480 int ival; 2481 { 2482 uhci_soft_qh_t *sqh; 2483 int i, npoll, s; 2484 u_int bestbw, bw, bestoffs, offs; 2485 2486 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2487 if (ival == 0) { 2488 printf("uhci_setintr: 0 interval\n"); 2489 return (USBD_INVAL); 2490 } 2491 2492 if (ival > UHCI_VFRAMELIST_COUNT) 2493 ival = UHCI_VFRAMELIST_COUNT; 2494 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2495 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2496 2497 upipe->u.intr.npoll = npoll; 2498 upipe->u.intr.qhs = 2499 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2500 2501 /* 2502 * Figure out which offset in the schedule that has most 2503 * bandwidth left over. 2504 */ 2505 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2506 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2507 for (bw = i = 0; i < npoll; i++) 2508 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2509 if (bw < bestbw) { 2510 bestbw = bw; 2511 bestoffs = offs; 2512 } 2513 } 2514 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2515 2516 upipe->iinfo->stdstart = 0; 2517 for(i = 0; i < npoll; i++) { 2518 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2519 sqh->elink = 0; 2520 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2521 sqh->pos = MOD(i * ival + bestoffs); 2522 sqh->intr_info = upipe->iinfo; 2523 } 2524 #undef MOD 2525 2526 s = splusb(); 2527 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2528 splx(s); 2529 2530 uhci_lock_frames(sc); 2531 /* Enter QHs into the controller data structures. */ 2532 for(i = 0; i < npoll; i++) 2533 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2534 upipe->u.intr.qhs[i]); 2535 uhci_unlock_frames(sc); 2536 2537 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2538 return (USBD_NORMAL_COMPLETION); 2539 } 2540 2541 /* Open a new pipe. */ 2542 usbd_status 2543 uhci_open(pipe) 2544 usbd_pipe_handle pipe; 2545 { 2546 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2547 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2548 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2549 usbd_status err; 2550 int ival; 2551 2552 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2553 pipe, pipe->device->address, 2554 ed->bEndpointAddress, sc->sc_addr)); 2555 if (pipe->device->address == sc->sc_addr) { 2556 switch (ed->bEndpointAddress) { 2557 case USB_CONTROL_ENDPOINT: 2558 pipe->methods = &uhci_root_ctrl_methods; 2559 break; 2560 case UE_DIR_IN | UHCI_INTR_ENDPT: 2561 pipe->methods = &uhci_root_intr_methods; 2562 break; 2563 default: 2564 return (USBD_INVAL); 2565 } 2566 } else { 2567 upipe->iinfo = uhci_alloc_intr_info(sc); 2568 if (upipe->iinfo == 0) 2569 return (USBD_NOMEM); 2570 switch (ed->bmAttributes & UE_XFERTYPE) { 2571 case UE_CONTROL: 2572 pipe->methods = &uhci_device_ctrl_methods; 2573 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2574 if (upipe->u.ctl.sqh == NULL) 2575 goto bad; 2576 upipe->u.ctl.setup = uhci_alloc_std(sc); 2577 if (upipe->u.ctl.setup == NULL) { 2578 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2579 goto bad; 2580 } 2581 upipe->u.ctl.stat = uhci_alloc_std(sc); 2582 if (upipe->u.ctl.stat == NULL) { 2583 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2584 uhci_free_std(sc, upipe->u.ctl.setup); 2585 goto bad; 2586 } 2587 err = usb_allocmem(&sc->sc_bus, 2588 sizeof(usb_device_request_t), 2589 0, &upipe->u.ctl.reqdma); 2590 if (err) { 2591 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2592 uhci_free_std(sc, upipe->u.ctl.setup); 2593 uhci_free_std(sc, upipe->u.ctl.stat); 2594 goto bad; 2595 } 2596 break; 2597 case UE_INTERRUPT: 2598 pipe->methods = &uhci_device_intr_methods; 2599 ival = pipe->interval; 2600 if (ival == USBD_DEFAULT_INTERVAL) 2601 ival = ed->bInterval; 2602 return (uhci_device_setintr(sc, upipe, ival)); 2603 case UE_ISOCHRONOUS: 2604 pipe->methods = &uhci_device_isoc_methods; 2605 return (uhci_setup_isoc(pipe)); 2606 case UE_BULK: 2607 pipe->methods = &uhci_device_bulk_methods; 2608 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2609 if (upipe->u.bulk.sqh == NULL) 2610 goto bad; 2611 break; 2612 } 2613 } 2614 return (USBD_NORMAL_COMPLETION); 2615 2616 bad: 2617 uhci_free_intr_info(upipe->iinfo); 2618 return (USBD_NOMEM); 2619 } 2620 2621 /* 2622 * Data structures and routines to emulate the root hub. 2623 */ 2624 usb_device_descriptor_t uhci_devd = { 2625 USB_DEVICE_DESCRIPTOR_SIZE, 2626 UDESC_DEVICE, /* type */ 2627 {0x00, 0x01}, /* USB version */ 2628 UCLASS_HUB, /* class */ 2629 USUBCLASS_HUB, /* subclass */ 2630 0, /* protocol */ 2631 64, /* max packet */ 2632 {0},{0},{0x00,0x01}, /* device id */ 2633 1,2,0, /* string indicies */ 2634 1 /* # of configurations */ 2635 }; 2636 2637 usb_config_descriptor_t uhci_confd = { 2638 USB_CONFIG_DESCRIPTOR_SIZE, 2639 UDESC_CONFIG, 2640 {USB_CONFIG_DESCRIPTOR_SIZE + 2641 USB_INTERFACE_DESCRIPTOR_SIZE + 2642 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2643 1, 2644 1, 2645 0, 2646 UC_SELF_POWERED, 2647 0 /* max power */ 2648 }; 2649 2650 usb_interface_descriptor_t uhci_ifcd = { 2651 USB_INTERFACE_DESCRIPTOR_SIZE, 2652 UDESC_INTERFACE, 2653 0, 2654 0, 2655 1, 2656 UCLASS_HUB, 2657 USUBCLASS_HUB, 2658 0, 2659 0 2660 }; 2661 2662 usb_endpoint_descriptor_t uhci_endpd = { 2663 USB_ENDPOINT_DESCRIPTOR_SIZE, 2664 UDESC_ENDPOINT, 2665 UE_DIR_IN | UHCI_INTR_ENDPT, 2666 UE_INTERRUPT, 2667 {8}, 2668 255 2669 }; 2670 2671 usb_hub_descriptor_t uhci_hubd_piix = { 2672 USB_HUB_DESCRIPTOR_SIZE, 2673 UDESC_HUB, 2674 2, 2675 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2676 50, /* power on to power good */ 2677 0, 2678 { 0x00 }, /* both ports are removable */ 2679 }; 2680 2681 int 2682 uhci_str(p, l, s) 2683 usb_string_descriptor_t *p; 2684 int l; 2685 char *s; 2686 { 2687 int i; 2688 2689 if (l == 0) 2690 return (0); 2691 p->bLength = 2 * strlen(s) + 2; 2692 if (l == 1) 2693 return (1); 2694 p->bDescriptorType = UDESC_STRING; 2695 l -= 2; 2696 for (i = 0; s[i] && l > 1; i++, l -= 2) 2697 USETW2(p->bString[i], 0, s[i]); 2698 return (2*i+2); 2699 } 2700 2701 /* 2702 * Simulate a hardware hub by handling all the necessary requests. 2703 */ 2704 usbd_status 2705 uhci_root_ctrl_transfer(xfer) 2706 usbd_xfer_handle xfer; 2707 { 2708 usbd_status err; 2709 2710 /* Insert last in queue. */ 2711 err = usb_insert_transfer(xfer); 2712 if (err) 2713 return (err); 2714 2715 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2716 * start first 2717 */ 2718 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2719 } 2720 2721 usbd_status 2722 uhci_root_ctrl_start(xfer) 2723 usbd_xfer_handle xfer; 2724 { 2725 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2726 usb_device_request_t *req; 2727 void *buf = NULL; 2728 int port, x; 2729 int s, len, value, index, status, change, l, totlen = 0; 2730 usb_port_status_t ps; 2731 usbd_status err; 2732 2733 if (sc->sc_dying) 2734 return (USBD_IOERROR); 2735 2736 #ifdef DIAGNOSTIC 2737 if (!(xfer->rqflags & URQ_REQUEST)) 2738 panic("uhci_root_ctrl_transfer: not a request\n"); 2739 #endif 2740 req = &xfer->request; 2741 2742 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2743 req->bmRequestType, req->bRequest)); 2744 2745 len = UGETW(req->wLength); 2746 value = UGETW(req->wValue); 2747 index = UGETW(req->wIndex); 2748 2749 if (len != 0) 2750 buf = KERNADDR(&xfer->dmabuf); 2751 2752 #define C(x,y) ((x) | ((y) << 8)) 2753 switch(C(req->bRequest, req->bmRequestType)) { 2754 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2755 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2756 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2757 /* 2758 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2759 * for the integrated root hub. 2760 */ 2761 break; 2762 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2763 if (len > 0) { 2764 *(u_int8_t *)buf = sc->sc_conf; 2765 totlen = 1; 2766 } 2767 break; 2768 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2769 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2770 switch(value >> 8) { 2771 case UDESC_DEVICE: 2772 if ((value & 0xff) != 0) { 2773 err = USBD_IOERROR; 2774 goto ret; 2775 } 2776 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2777 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2778 memcpy(buf, &uhci_devd, l); 2779 break; 2780 case UDESC_CONFIG: 2781 if ((value & 0xff) != 0) { 2782 err = USBD_IOERROR; 2783 goto ret; 2784 } 2785 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2786 memcpy(buf, &uhci_confd, l); 2787 buf = (char *)buf + l; 2788 len -= l; 2789 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2790 totlen += l; 2791 memcpy(buf, &uhci_ifcd, l); 2792 buf = (char *)buf + l; 2793 len -= l; 2794 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2795 totlen += l; 2796 memcpy(buf, &uhci_endpd, l); 2797 break; 2798 case UDESC_STRING: 2799 if (len == 0) 2800 break; 2801 *(u_int8_t *)buf = 0; 2802 totlen = 1; 2803 switch (value & 0xff) { 2804 case 1: /* Vendor */ 2805 totlen = uhci_str(buf, len, sc->sc_vendor); 2806 break; 2807 case 2: /* Product */ 2808 totlen = uhci_str(buf, len, "UHCI root hub"); 2809 break; 2810 } 2811 break; 2812 default: 2813 err = USBD_IOERROR; 2814 goto ret; 2815 } 2816 break; 2817 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2818 if (len > 0) { 2819 *(u_int8_t *)buf = 0; 2820 totlen = 1; 2821 } 2822 break; 2823 case C(UR_GET_STATUS, UT_READ_DEVICE): 2824 if (len > 1) { 2825 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2826 totlen = 2; 2827 } 2828 break; 2829 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2830 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2831 if (len > 1) { 2832 USETW(((usb_status_t *)buf)->wStatus, 0); 2833 totlen = 2; 2834 } 2835 break; 2836 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2837 if (value >= USB_MAX_DEVICES) { 2838 err = USBD_IOERROR; 2839 goto ret; 2840 } 2841 sc->sc_addr = value; 2842 break; 2843 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2844 if (value != 0 && value != 1) { 2845 err = USBD_IOERROR; 2846 goto ret; 2847 } 2848 sc->sc_conf = value; 2849 break; 2850 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2851 break; 2852 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2853 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2854 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2855 err = USBD_IOERROR; 2856 goto ret; 2857 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2858 break; 2859 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2860 break; 2861 /* Hub requests */ 2862 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2863 break; 2864 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2865 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2866 "port=%d feature=%d\n", 2867 index, value)); 2868 if (index == 1) 2869 port = UHCI_PORTSC1; 2870 else if (index == 2) 2871 port = UHCI_PORTSC2; 2872 else { 2873 err = USBD_IOERROR; 2874 goto ret; 2875 } 2876 switch(value) { 2877 case UHF_PORT_ENABLE: 2878 x = UREAD2(sc, port); 2879 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2880 break; 2881 case UHF_PORT_SUSPEND: 2882 x = UREAD2(sc, port); 2883 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2884 break; 2885 case UHF_PORT_RESET: 2886 x = UREAD2(sc, port); 2887 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2888 break; 2889 case UHF_C_PORT_CONNECTION: 2890 x = UREAD2(sc, port); 2891 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2892 break; 2893 case UHF_C_PORT_ENABLE: 2894 x = UREAD2(sc, port); 2895 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2896 break; 2897 case UHF_C_PORT_OVER_CURRENT: 2898 x = UREAD2(sc, port); 2899 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2900 break; 2901 case UHF_C_PORT_RESET: 2902 sc->sc_isreset = 0; 2903 err = USBD_NORMAL_COMPLETION; 2904 goto ret; 2905 case UHF_PORT_CONNECTION: 2906 case UHF_PORT_OVER_CURRENT: 2907 case UHF_PORT_POWER: 2908 case UHF_PORT_LOW_SPEED: 2909 case UHF_C_PORT_SUSPEND: 2910 default: 2911 err = USBD_IOERROR; 2912 goto ret; 2913 } 2914 break; 2915 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2916 if (index == 1) 2917 port = UHCI_PORTSC1; 2918 else if (index == 2) 2919 port = UHCI_PORTSC2; 2920 else { 2921 err = USBD_IOERROR; 2922 goto ret; 2923 } 2924 if (len > 0) { 2925 *(u_int8_t *)buf = 2926 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2927 UHCI_PORTSC_LS_SHIFT; 2928 totlen = 1; 2929 } 2930 break; 2931 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2932 if (value != 0) { 2933 err = USBD_IOERROR; 2934 goto ret; 2935 } 2936 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2937 totlen = l; 2938 memcpy(buf, &uhci_hubd_piix, l); 2939 break; 2940 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2941 if (len != 4) { 2942 err = USBD_IOERROR; 2943 goto ret; 2944 } 2945 memset(buf, 0, len); 2946 totlen = len; 2947 break; 2948 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2949 if (index == 1) 2950 port = UHCI_PORTSC1; 2951 else if (index == 2) 2952 port = UHCI_PORTSC2; 2953 else { 2954 err = USBD_IOERROR; 2955 goto ret; 2956 } 2957 if (len != 4) { 2958 err = USBD_IOERROR; 2959 goto ret; 2960 } 2961 x = UREAD2(sc, port); 2962 status = change = 0; 2963 if (x & UHCI_PORTSC_CCS ) 2964 status |= UPS_CURRENT_CONNECT_STATUS; 2965 if (x & UHCI_PORTSC_CSC ) 2966 change |= UPS_C_CONNECT_STATUS; 2967 if (x & UHCI_PORTSC_PE ) 2968 status |= UPS_PORT_ENABLED; 2969 if (x & UHCI_PORTSC_POEDC) 2970 change |= UPS_C_PORT_ENABLED; 2971 if (x & UHCI_PORTSC_OCI ) 2972 status |= UPS_OVERCURRENT_INDICATOR; 2973 if (x & UHCI_PORTSC_OCIC ) 2974 change |= UPS_C_OVERCURRENT_INDICATOR; 2975 if (x & UHCI_PORTSC_SUSP ) 2976 status |= UPS_SUSPEND; 2977 if (x & UHCI_PORTSC_LSDA ) 2978 status |= UPS_LOW_SPEED; 2979 status |= UPS_PORT_POWER; 2980 if (sc->sc_isreset) 2981 change |= UPS_C_PORT_RESET; 2982 USETW(ps.wPortStatus, status); 2983 USETW(ps.wPortChange, change); 2984 l = min(len, sizeof ps); 2985 memcpy(buf, &ps, l); 2986 totlen = l; 2987 break; 2988 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2989 err = USBD_IOERROR; 2990 goto ret; 2991 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2992 break; 2993 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2994 if (index == 1) 2995 port = UHCI_PORTSC1; 2996 else if (index == 2) 2997 port = UHCI_PORTSC2; 2998 else { 2999 err = USBD_IOERROR; 3000 goto ret; 3001 } 3002 switch(value) { 3003 case UHF_PORT_ENABLE: 3004 x = UREAD2(sc, port); 3005 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3006 break; 3007 case UHF_PORT_SUSPEND: 3008 x = UREAD2(sc, port); 3009 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3010 break; 3011 case UHF_PORT_RESET: 3012 x = UREAD2(sc, port); 3013 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3014 usb_delay_ms(&sc->sc_bus, 10); 3015 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3016 delay(100); 3017 x = UREAD2(sc, port); 3018 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3019 delay(100); 3020 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3021 index, UREAD2(sc, port))); 3022 sc->sc_isreset = 1; 3023 break; 3024 case UHF_C_PORT_CONNECTION: 3025 case UHF_C_PORT_ENABLE: 3026 case UHF_C_PORT_OVER_CURRENT: 3027 case UHF_PORT_CONNECTION: 3028 case UHF_PORT_OVER_CURRENT: 3029 case UHF_PORT_POWER: 3030 case UHF_PORT_LOW_SPEED: 3031 case UHF_C_PORT_SUSPEND: 3032 case UHF_C_PORT_RESET: 3033 default: 3034 err = USBD_IOERROR; 3035 goto ret; 3036 } 3037 break; 3038 default: 3039 err = USBD_IOERROR; 3040 goto ret; 3041 } 3042 xfer->actlen = totlen; 3043 err = USBD_NORMAL_COMPLETION; 3044 ret: 3045 xfer->status = err; 3046 xfer->hcpriv = 0; 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(xfer) 3056 usbd_xfer_handle xfer; 3057 { 3058 /* Nothing to do, all transfers are synchronous. */ 3059 } 3060 3061 /* Close the root pipe. */ 3062 void 3063 uhci_root_ctrl_close(pipe) 3064 usbd_pipe_handle pipe; 3065 { 3066 DPRINTF(("uhci_root_ctrl_close\n")); 3067 } 3068 3069 /* Abort a root interrupt request. */ 3070 void 3071 uhci_root_intr_abort(xfer) 3072 usbd_xfer_handle xfer; 3073 { 3074 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3075 3076 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3077 sc->sc_has_timo = NULL; 3078 3079 if (xfer->pipe->intrxfer == xfer) { 3080 DPRINTF(("uhci_root_intr_abort: remove\n")); 3081 xfer->pipe->intrxfer = 0; 3082 } 3083 xfer->status = USBD_CANCELLED; 3084 usb_transfer_complete(xfer); 3085 } 3086 3087 usbd_status 3088 uhci_root_intr_transfer(xfer) 3089 usbd_xfer_handle xfer; 3090 { 3091 usbd_status err; 3092 3093 /* Insert last in queue. */ 3094 err = usb_insert_transfer(xfer); 3095 if (err) 3096 return (err); 3097 3098 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3099 * start first 3100 */ 3101 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3102 } 3103 3104 /* Start a transfer on the root interrupt pipe */ 3105 usbd_status 3106 uhci_root_intr_start(xfer) 3107 usbd_xfer_handle xfer; 3108 { 3109 usbd_pipe_handle pipe = xfer->pipe; 3110 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3111 3112 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3113 xfer, xfer->length, xfer->flags)); 3114 3115 if (sc->sc_dying) 3116 return (USBD_IOERROR); 3117 3118 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3119 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3120 sc->sc_has_timo = xfer; 3121 return (USBD_IN_PROGRESS); 3122 } 3123 3124 /* Close the root interrupt pipe. */ 3125 void 3126 uhci_root_intr_close(pipe) 3127 usbd_pipe_handle pipe; 3128 { 3129 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3130 3131 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3132 sc->sc_has_timo = NULL; 3133 DPRINTF(("uhci_root_intr_close\n")); 3134 } 3135
Indexes created Tue Sep 30 17:09:57 GMT 2025