uhci.c revision 1.78
1 /* $NetBSD: uhci.c,v 1.78 2000/01/19 01:02:11 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 } 791 792 793 void 794 uhci_lock_frames(sc) 795 uhci_softc_t *sc; 796 { 797 int s = splusb(); 798 799 while (sc->sc_vflock & UHCI_HAS_LOCK) { 800 sc->sc_vflock |= UHCI_WANT_LOCK; 801 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 802 } 803 sc->sc_vflock = UHCI_HAS_LOCK; 804 splx(s); 805 } 806 807 void 808 uhci_unlock_frames(sc) 809 uhci_softc_t *sc; 810 { 811 int s = splusb(); 812 813 sc->sc_vflock &= ~UHCI_HAS_LOCK; 814 if (sc->sc_vflock & UHCI_WANT_LOCK) 815 wakeup(&sc->sc_vflock); 816 splx(s); 817 } 818 819 /* 820 * Allocate an interrupt information struct. A free list is kept 821 * for fast allocation. 822 */ 823 uhci_intr_info_t * 824 uhci_alloc_intr_info(sc) 825 uhci_softc_t *sc; 826 { 827 uhci_intr_info_t *ii; 828 829 ii = LIST_FIRST(&uhci_ii_free); 830 if (ii) 831 LIST_REMOVE(ii, list); 832 else { 833 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 834 } 835 ii->sc = sc; 836 #if defined(__FreeBSD__) 837 callout_handle_init(&ii->timeout_handle); 838 #endif 839 840 return ii; 841 } 842 843 void 844 uhci_free_intr_info(ii) 845 uhci_intr_info_t *ii; 846 { 847 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 848 } 849 850 /* Add control QH, called at splusb(). */ 851 void 852 uhci_add_ctrl(sc, sqh) 853 uhci_softc_t *sc; 854 uhci_soft_qh_t *sqh; 855 { 856 uhci_soft_qh_t *eqh; 857 858 SPLUSBCHECK; 859 860 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 861 eqh = sc->sc_ctl_end; 862 sqh->hlink = eqh->hlink; 863 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 864 eqh->hlink = sqh; 865 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 866 sc->sc_ctl_end = sqh; 867 } 868 869 /* Remove control QH, called at splusb(). */ 870 void 871 uhci_remove_ctrl(sc, sqh) 872 uhci_softc_t *sc; 873 uhci_soft_qh_t *sqh; 874 { 875 uhci_soft_qh_t *pqh; 876 877 SPLUSBCHECK; 878 879 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 880 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 881 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 882 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 883 printf("uhci_remove_ctrl: QH not found\n"); 884 return; 885 } 886 #else 887 ; 888 #endif 889 pqh->hlink = sqh->hlink; 890 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 891 if (sc->sc_ctl_end == sqh) 892 sc->sc_ctl_end = pqh; 893 } 894 895 /* Add bulk QH, called at splusb(). */ 896 void 897 uhci_add_bulk(sc, sqh) 898 uhci_softc_t *sc; 899 uhci_soft_qh_t *sqh; 900 { 901 uhci_soft_qh_t *eqh; 902 903 SPLUSBCHECK; 904 905 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 906 eqh = sc->sc_bulk_end; 907 sqh->hlink = eqh->hlink; 908 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 909 eqh->hlink = sqh; 910 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 911 sc->sc_bulk_end = sqh; 912 } 913 914 /* Remove bulk QH, called at splusb(). */ 915 void 916 uhci_remove_bulk(sc, sqh) 917 uhci_softc_t *sc; 918 uhci_soft_qh_t *sqh; 919 { 920 uhci_soft_qh_t *pqh; 921 922 SPLUSBCHECK; 923 924 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 925 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 926 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 927 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 928 printf("uhci_remove_bulk: QH not found\n"); 929 return; 930 } 931 #else 932 ; 933 #endif 934 pqh->hlink = sqh->hlink; 935 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 936 if (sc->sc_bulk_end == sqh) 937 sc->sc_bulk_end = pqh; 938 } 939 940 int 941 uhci_intr(arg) 942 void *arg; 943 { 944 uhci_softc_t *sc = arg; 945 int status; 946 int ack; 947 uhci_intr_info_t *ii; 948 949 #ifdef UHCI_DEBUG 950 if (uhcidebug > 15) { 951 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 952 uhci_dumpregs(sc); 953 } 954 #endif 955 956 status = UREAD2(sc, UHCI_STS); 957 if (status == 0) /* The interrupt was not for us. */ 958 return (0); 959 960 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 961 if (sc->sc_suspend != PWR_RESUME) 962 printf("uhci_intr: suspended sts=0x%x\n", status); 963 #endif 964 965 ack = 0; 966 if (status & UHCI_STS_USBINT) 967 ack |= UHCI_STS_USBINT; 968 if (status & UHCI_STS_USBEI) 969 ack |= UHCI_STS_USBEI; 970 if (status & UHCI_STS_RD) { 971 ack |= UHCI_STS_RD; 972 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 973 } 974 if (status & UHCI_STS_HSE) { 975 ack |= UHCI_STS_HSE; 976 printf("%s: host controller process error\n", 977 USBDEVNAME(sc->sc_bus.bdev)); 978 } 979 if (status & UHCI_STS_HCPE) { 980 ack |= UHCI_STS_HCPE; 981 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 982 } 983 if (status & UHCI_STS_HCH) { 984 /* no acknowledge needed */ 985 printf("%s: host controller halted\n", 986 USBDEVNAME(sc->sc_bus.bdev)); 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 #ifdef DIAGNOSTIC 1549 if (xfer->rqflags & URQ_REQUEST) 1550 panic("uhci_device_bulk_transfer: a request\n"); 1551 #endif 1552 1553 len = xfer->length; 1554 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1555 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1556 sqh = upipe->u.bulk.sqh; 1557 1558 upipe->u.bulk.isread = isread; 1559 upipe->u.bulk.length = len; 1560 1561 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1562 &xfer->dmabuf, &data, &dataend); 1563 if (err) 1564 return (err); 1565 dataend->td.td_status |= LE(UHCI_TD_IOC); 1566 1567 #ifdef UHCI_DEBUG 1568 if (uhcidebug > 8) { 1569 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1570 uhci_dump_tds(data); 1571 } 1572 #endif 1573 1574 /* Set up interrupt info. */ 1575 ii->xfer = xfer; 1576 ii->stdstart = data; 1577 ii->stdend = dataend; 1578 #if defined(__FreeBSD__) 1579 callout_handle_init(&ii->timeout_handle); 1580 #endif 1581 #ifdef DIAGNOSTIC 1582 if (!ii->isdone) { 1583 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1584 } 1585 ii->isdone = 0; 1586 #endif 1587 1588 sqh->elink = data; 1589 sqh->qh.qh_elink = LE(data->physaddr); 1590 sqh->intr_info = ii; 1591 1592 s = splusb(); 1593 uhci_add_bulk(sc, sqh); 1594 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1595 1596 if (xfer->timeout && !sc->sc_bus.use_polling) { 1597 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1598 ii->timeout_handle); 1599 } 1600 splx(s); 1601 1602 #ifdef UHCI_DEBUG 1603 if (uhcidebug > 10) { 1604 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1605 uhci_dump_tds(data); 1606 } 1607 #endif 1608 1609 if (sc->sc_bus.use_polling) 1610 uhci_waitintr(sc, xfer); 1611 1612 return (USBD_IN_PROGRESS); 1613 } 1614 1615 /* Abort a device bulk request. */ 1616 void 1617 uhci_device_bulk_abort(xfer) 1618 usbd_xfer_handle xfer; 1619 { 1620 DPRINTF(("uhci_device_bulk_abort:\n")); 1621 uhci_abort_xfer(xfer, USBD_CANCELLED); 1622 } 1623 1624 void 1625 uhci_abort_xfer(xfer, status) 1626 usbd_xfer_handle xfer; 1627 usbd_status status; 1628 { 1629 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1630 uhci_intr_info_t *ii = upipe->iinfo; 1631 uhci_soft_td_t *std; 1632 1633 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1634 1635 /* Make interrupt routine ignore it, */ 1636 xfer->status = status; 1637 1638 /* don't timeout, */ 1639 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1640 1641 /* make hardware ignore it, */ 1642 for (std = ii->stdstart; std != 0; std = std->link.std) 1643 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1644 1645 xfer->hcpriv = ii; 1646 1647 #if 1 1648 /* Make sure hardware has completed. */ 1649 if (xfer->device->bus->intr_context) { 1650 /* We have no process context, so we can't use tsleep(). */ 1651 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1652 } else { 1653 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1654 KASSERT(intr_nesting_level == 0, 1655 ("ohci_abort_req in interrupt context")); 1656 #endif 1657 usb_delay_ms(xfer->pipe->device->bus, 1); 1658 /* and call final part of interrupt handler. */ 1659 uhci_abort_xfer_end(xfer); 1660 } 1661 #else 1662 delay(1000); 1663 uhci_abort_xfer_end(xfer); 1664 #endif 1665 } 1666 1667 void 1668 uhci_abort_xfer_end(v) 1669 void *v; 1670 { 1671 usbd_xfer_handle xfer = v; 1672 int s; 1673 1674 s = splusb(); 1675 usb_transfer_complete(xfer); 1676 splx(s); 1677 } 1678 1679 /* Close a device bulk pipe. */ 1680 void 1681 uhci_device_bulk_close(pipe) 1682 usbd_pipe_handle pipe; 1683 { 1684 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1685 usbd_device_handle dev = upipe->pipe.device; 1686 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1687 1688 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1689 uhci_free_intr_info(upipe->iinfo); 1690 /* XXX free other resources */ 1691 } 1692 1693 usbd_status 1694 uhci_device_ctrl_transfer(xfer) 1695 usbd_xfer_handle xfer; 1696 { 1697 usbd_status err; 1698 1699 /* Insert last in queue. */ 1700 err = usb_insert_transfer(xfer); 1701 if (err) 1702 return (err); 1703 1704 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1705 * start first 1706 */ 1707 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1708 } 1709 1710 usbd_status 1711 uhci_device_ctrl_start(xfer) 1712 usbd_xfer_handle xfer; 1713 { 1714 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1715 usbd_status err; 1716 1717 #ifdef DIAGNOSTIC 1718 if (!(xfer->rqflags & URQ_REQUEST)) 1719 panic("uhci_device_ctrl_transfer: not a request\n"); 1720 #endif 1721 1722 err = uhci_device_request(xfer); 1723 if (err) 1724 return (err); 1725 1726 if (sc->sc_bus.use_polling) 1727 uhci_waitintr(sc, xfer); 1728 return (USBD_IN_PROGRESS); 1729 } 1730 1731 usbd_status 1732 uhci_device_intr_transfer(xfer) 1733 usbd_xfer_handle xfer; 1734 { 1735 usbd_status err; 1736 1737 /* Insert last in queue. */ 1738 err = usb_insert_transfer(xfer); 1739 if (err) 1740 return (err); 1741 1742 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1743 * start first 1744 */ 1745 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1746 } 1747 1748 usbd_status 1749 uhci_device_intr_start(xfer) 1750 usbd_xfer_handle xfer; 1751 { 1752 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1753 usbd_device_handle dev = upipe->pipe.device; 1754 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1755 uhci_intr_info_t *ii = upipe->iinfo; 1756 uhci_soft_td_t *data, *dataend; 1757 uhci_soft_qh_t *sqh; 1758 usbd_status err; 1759 int i, s; 1760 1761 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1762 xfer, xfer->length, xfer->flags)); 1763 1764 #ifdef DIAGNOSTIC 1765 if (xfer->rqflags & URQ_REQUEST) 1766 panic("uhci_device_intr_transfer: a request\n"); 1767 #endif 1768 1769 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1770 &xfer->dmabuf, &data, &dataend); 1771 if (err) 1772 return (err); 1773 dataend->td.td_status |= LE(UHCI_TD_IOC); 1774 1775 #ifdef UHCI_DEBUG 1776 if (uhcidebug > 10) { 1777 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1778 uhci_dump_tds(data); 1779 uhci_dump_qh(upipe->u.intr.qhs[0]); 1780 } 1781 #endif 1782 1783 s = splusb(); 1784 /* Set up interrupt info. */ 1785 ii->xfer = xfer; 1786 ii->stdstart = data; 1787 ii->stdend = dataend; 1788 #if defined(__FreeBSD__) 1789 callout_handle_init(&ii->timeout_handle); 1790 #endif 1791 #ifdef DIAGNOSTIC 1792 if (!ii->isdone) { 1793 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1794 } 1795 ii->isdone = 0; 1796 #endif 1797 1798 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1799 upipe->u.intr.qhs[0])); 1800 for (i = 0; i < upipe->u.intr.npoll; i++) { 1801 sqh = upipe->u.intr.qhs[i]; 1802 sqh->elink = data; 1803 sqh->qh.qh_elink = LE(data->physaddr); 1804 } 1805 splx(s); 1806 1807 #ifdef UHCI_DEBUG 1808 if (uhcidebug > 10) { 1809 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1810 uhci_dump_tds(data); 1811 uhci_dump_qh(upipe->u.intr.qhs[0]); 1812 } 1813 #endif 1814 1815 return (USBD_IN_PROGRESS); 1816 } 1817 1818 /* Abort a device control request. */ 1819 void 1820 uhci_device_ctrl_abort(xfer) 1821 usbd_xfer_handle xfer; 1822 { 1823 DPRINTF(("uhci_device_ctrl_abort:\n")); 1824 uhci_abort_xfer(xfer, USBD_CANCELLED); 1825 } 1826 1827 /* Close a device control pipe. */ 1828 void 1829 uhci_device_ctrl_close(pipe) 1830 usbd_pipe_handle pipe; 1831 { 1832 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1833 1834 uhci_free_intr_info(upipe->iinfo); 1835 /* XXX free other resources? */ 1836 } 1837 1838 /* Abort a device interrupt request. */ 1839 void 1840 uhci_device_intr_abort(xfer) 1841 usbd_xfer_handle xfer; 1842 { 1843 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1844 if (xfer->pipe->intrxfer == xfer) { 1845 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1846 xfer->pipe->intrxfer = 0; 1847 } 1848 uhci_abort_xfer(xfer, USBD_CANCELLED); 1849 } 1850 1851 /* Close a device interrupt pipe. */ 1852 void 1853 uhci_device_intr_close(pipe) 1854 usbd_pipe_handle pipe; 1855 { 1856 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1857 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1858 int i, s, npoll; 1859 1860 upipe->iinfo->stdstart = 0; /* inactive */ 1861 1862 /* Unlink descriptors from controller data structures. */ 1863 npoll = upipe->u.intr.npoll; 1864 uhci_lock_frames(sc); 1865 for (i = 0; i < npoll; i++) 1866 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1867 upipe->u.intr.qhs[i]); 1868 uhci_unlock_frames(sc); 1869 1870 /* 1871 * We now have to wait for any activity on the physical 1872 * descriptors to stop. 1873 */ 1874 usb_delay_ms(&sc->sc_bus, 2); 1875 1876 for(i = 0; i < npoll; i++) 1877 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1878 free(upipe->u.intr.qhs, M_USBHC); 1879 1880 s = splusb(); 1881 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1882 splx(s); 1883 uhci_free_intr_info(upipe->iinfo); 1884 1885 /* XXX free other resources */ 1886 } 1887 1888 usbd_status 1889 uhci_device_request(xfer) 1890 usbd_xfer_handle xfer; 1891 { 1892 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1893 usb_device_request_t *req = &xfer->request; 1894 usbd_device_handle dev = upipe->pipe.device; 1895 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1896 int addr = dev->address; 1897 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1898 uhci_intr_info_t *ii = upipe->iinfo; 1899 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1900 uhci_soft_qh_t *sqh; 1901 int len; 1902 u_int32_t ls; 1903 usbd_status err; 1904 int isread; 1905 int s; 1906 1907 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1908 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1909 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1910 UGETW(req->wIndex), UGETW(req->wLength), 1911 addr, endpt)); 1912 1913 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1914 isread = req->bmRequestType & UT_READ; 1915 len = UGETW(req->wLength); 1916 1917 setup = upipe->u.ctl.setup; 1918 stat = upipe->u.ctl.stat; 1919 sqh = upipe->u.ctl.sqh; 1920 1921 /* Set up data transaction */ 1922 if (len != 0) { 1923 upipe->nexttoggle = 1; 1924 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1925 &xfer->dmabuf, &data, &dataend); 1926 if (err) 1927 return (err); 1928 next = data; 1929 dataend->link.std = stat; 1930 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1931 } else { 1932 next = stat; 1933 } 1934 upipe->u.ctl.length = len; 1935 1936 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1937 1938 setup->link.std = next; 1939 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1940 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1941 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1942 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1943 1944 stat->link.std = 0; 1945 stat->td.td_link = LE(UHCI_PTR_T); 1946 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1947 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1948 stat->td.td_token = 1949 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1950 UHCI_TD_IN (0, endpt, addr, 1)); 1951 stat->td.td_buffer = LE(0); 1952 1953 #ifdef UHCI_DEBUG 1954 if (uhcidebug > 10) { 1955 DPRINTF(("uhci_device_request: before transfer\n")); 1956 uhci_dump_tds(setup); 1957 } 1958 #endif 1959 1960 /* Set up interrupt info. */ 1961 ii->xfer = xfer; 1962 ii->stdstart = setup; 1963 ii->stdend = stat; 1964 #if defined(__FreeBSD__) 1965 callout_handle_init(&ii->timeout_handle); 1966 #endif 1967 #ifdef DIAGNOSTIC 1968 if (!ii->isdone) { 1969 printf("uhci_device_request: not done, ii=%p\n", ii); 1970 } 1971 ii->isdone = 0; 1972 #endif 1973 1974 sqh->elink = setup; 1975 sqh->qh.qh_elink = LE(setup->physaddr); 1976 sqh->intr_info = ii; 1977 1978 s = splusb(); 1979 uhci_add_ctrl(sc, sqh); 1980 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1981 #ifdef UHCI_DEBUG 1982 if (uhcidebug > 12) { 1983 uhci_soft_td_t *std; 1984 uhci_soft_qh_t *xqh; 1985 uhci_soft_qh_t *sxqh; 1986 int maxqh = 0; 1987 uhci_physaddr_t link; 1988 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1989 for (std = sc->sc_vframes[0].htd, link = 0; 1990 (link & UHCI_PTR_Q) == 0; 1991 std = std->link.std) { 1992 link = LE(std->td.td_link); 1993 uhci_dump_td(std); 1994 } 1995 sxqh = (uhci_soft_qh_t *)std; 1996 uhci_dump_qh(sxqh); 1997 for (xqh = sxqh; 1998 xqh != NULL; 1999 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2000 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2001 uhci_dump_qh(xqh); 2002 } 2003 DPRINTF(("Enqueued QH:\n")); 2004 uhci_dump_qh(sqh); 2005 uhci_dump_tds(sqh->elink); 2006 } 2007 #endif 2008 if (xfer->timeout && !sc->sc_bus.use_polling) { 2009 usb_timeout(uhci_timeout, ii, 2010 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2011 } 2012 splx(s); 2013 2014 return (USBD_NORMAL_COMPLETION); 2015 } 2016 2017 usbd_status 2018 uhci_device_isoc_transfer(xfer) 2019 usbd_xfer_handle xfer; 2020 { 2021 usbd_status err; 2022 2023 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2024 2025 /* Put it on our queue, */ 2026 err = usb_insert_transfer(xfer); 2027 2028 /* bail out on error, */ 2029 if (err && err != USBD_IN_PROGRESS) 2030 return (err); 2031 2032 /* XXX should check inuse here */ 2033 2034 /* insert into schedule, */ 2035 uhci_device_isoc_enter(xfer); 2036 2037 /* and put on interrupt list if the pipe wasn't running */ 2038 if (!err) 2039 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2040 2041 return (err); 2042 } 2043 2044 void 2045 uhci_device_isoc_enter(xfer) 2046 usbd_xfer_handle xfer; 2047 { 2048 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2049 usbd_device_handle dev = upipe->pipe.device; 2050 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2051 struct iso *iso = &upipe->u.iso; 2052 uhci_soft_td_t *std; 2053 u_int32_t buf, len, status; 2054 int s, i, next, nframes; 2055 2056 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2057 "nframes=%d\n", 2058 iso->inuse, iso->next, xfer, xfer->nframes)); 2059 2060 if (xfer->status == USBD_IN_PROGRESS) { 2061 /* This request has already been entered into the frame list */ 2062 /* XXX */ 2063 } 2064 2065 #ifdef DIAGNOSTIC 2066 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2067 printf("uhci_device_isoc_enter: overflow!\n"); 2068 #endif 2069 2070 next = iso->next; 2071 if (next == -1) { 2072 /* Not in use yet, schedule it a few frames ahead. */ 2073 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2074 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2075 } 2076 2077 xfer->status = USBD_IN_PROGRESS; 2078 xfer->hcprivint = next; 2079 2080 buf = DMAADDR(&xfer->dmabuf); 2081 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2082 UHCI_TD_ACTIVE | 2083 UHCI_TD_IOS)); 2084 nframes = xfer->nframes; 2085 s = splusb(); 2086 for (i = 0; i < nframes; i++) { 2087 std = iso->stds[next]; 2088 if (++next >= UHCI_VFRAMELIST_COUNT) 2089 next = 0; 2090 len = xfer->frlengths[i]; 2091 std->td.td_buffer = LE(buf); 2092 if (i == nframes - 1) 2093 status |= LE(UHCI_TD_IOC); 2094 std->td.td_status = status; 2095 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2096 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2097 #ifdef UHCI_DEBUG 2098 if (uhcidebug > 5) { 2099 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2100 uhci_dump_td(std); 2101 } 2102 #endif 2103 buf += len; 2104 } 2105 iso->next = next; 2106 iso->inuse += xfer->nframes; 2107 2108 splx(s); 2109 } 2110 2111 usbd_status 2112 uhci_device_isoc_start(xfer) 2113 usbd_xfer_handle xfer; 2114 { 2115 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2116 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2117 uhci_intr_info_t *ii = upipe->iinfo; 2118 uhci_soft_td_t *end; 2119 int s, i; 2120 2121 #ifdef DIAGNOSTIC 2122 if (xfer->status != USBD_IN_PROGRESS) 2123 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2124 #endif 2125 2126 /* Find the last TD */ 2127 i = xfer->hcprivint + xfer->nframes; 2128 if (i >= UHCI_VFRAMELIST_COUNT) 2129 i -= UHCI_VFRAMELIST_COUNT; 2130 end = upipe->u.iso.stds[i]; 2131 2132 s = splusb(); 2133 2134 /* Set up interrupt info. */ 2135 ii->xfer = xfer; 2136 ii->stdstart = end; 2137 ii->stdend = end; 2138 #if defined(__FreeBSD__) 2139 callout_handle_init(&ii->timeout_handle); 2140 #endif 2141 #ifdef DIAGNOSTIC 2142 if (!ii->isdone) { 2143 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2144 } 2145 ii->isdone = 0; 2146 #endif 2147 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2148 2149 splx(s); 2150 2151 return (USBD_IN_PROGRESS); 2152 } 2153 2154 void 2155 uhci_device_isoc_abort(xfer) 2156 usbd_xfer_handle xfer; 2157 { 2158 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2159 uhci_intr_info_t *ii = upipe->iinfo; 2160 uhci_soft_td_t **stds = upipe->u.iso.stds; 2161 uhci_soft_td_t *std; 2162 int i, n, nframes; 2163 2164 /* Make interrupt routine ignore it, */ 2165 xfer->status = USBD_CANCELLED; 2166 2167 /* make hardware ignore it, */ 2168 nframes = xfer->nframes; 2169 n = xfer->hcprivint; 2170 for (i = 0; i < nframes; i++) { 2171 std = stds[n]; 2172 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2173 if (++n >= UHCI_VFRAMELIST_COUNT) 2174 n = 0; 2175 } 2176 2177 xfer->hcpriv = ii; 2178 2179 /* make sure hardware has completed, */ 2180 if (xfer->device->bus->intr_context) { 2181 /* We have no process context, so we can't use tsleep(). */ 2182 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2183 } else { 2184 usb_delay_ms(xfer->pipe->device->bus, 1); 2185 /* and call final part of interrupt handler. */ 2186 uhci_abort_xfer_end(xfer); 2187 } 2188 } 2189 2190 void 2191 uhci_device_isoc_close(pipe) 2192 usbd_pipe_handle pipe; 2193 { 2194 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2195 usbd_device_handle dev = upipe->pipe.device; 2196 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2197 uhci_soft_td_t *std, *vstd; 2198 struct iso *iso; 2199 int i; 2200 2201 /* 2202 * Make sure all TDs are marked as inactive. 2203 * Wait for completion. 2204 * Unschedule. 2205 * Deallocate. 2206 */ 2207 iso = &upipe->u.iso; 2208 2209 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2210 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2211 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2212 2213 uhci_lock_frames(sc); 2214 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2215 std = iso->stds[i]; 2216 for (vstd = sc->sc_vframes[i].htd; 2217 vstd != NULL && vstd->link.std != std; 2218 vstd = vstd->link.std) 2219 ; 2220 if (vstd == NULL) { 2221 /*panic*/ 2222 printf("uhci_device_isoc_close: %p not found\n", std); 2223 uhci_unlock_frames(sc); 2224 return; 2225 } 2226 vstd->link = std->link; 2227 vstd->td.td_link = std->td.td_link; 2228 uhci_free_std(sc, std); 2229 } 2230 uhci_unlock_frames(sc); 2231 2232 free(iso->stds, M_USBHC); 2233 } 2234 2235 usbd_status 2236 uhci_setup_isoc(pipe) 2237 usbd_pipe_handle pipe; 2238 { 2239 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2240 usbd_device_handle dev = upipe->pipe.device; 2241 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2242 int addr = upipe->pipe.device->address; 2243 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2244 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2245 uhci_soft_td_t *std, *vstd; 2246 u_int32_t token; 2247 struct iso *iso; 2248 int i; 2249 2250 iso = &upipe->u.iso; 2251 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2252 M_USBHC, M_WAITOK); 2253 2254 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2255 UHCI_TD_OUT(0, endpt, addr, 0)); 2256 2257 /* Allocate the TDs and mark as inactive; */ 2258 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2259 std = uhci_alloc_std(sc); 2260 if (std == 0) 2261 goto bad; 2262 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2263 std->td.td_token = token; 2264 iso->stds[i] = std; 2265 } 2266 2267 /* Insert TDs into schedule. */ 2268 uhci_lock_frames(sc); 2269 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2270 std = iso->stds[i]; 2271 vstd = sc->sc_vframes[i].htd; 2272 std->link = vstd->link; 2273 std->td.td_link = vstd->td.td_link; 2274 vstd->link.std = std; 2275 vstd->td.td_link = LE(std->physaddr); 2276 } 2277 uhci_unlock_frames(sc); 2278 2279 iso->next = -1; 2280 iso->inuse = 0; 2281 2282 return (USBD_NORMAL_COMPLETION); 2283 2284 bad: 2285 while (--i >= 0) 2286 uhci_free_std(sc, iso->stds[i]); 2287 free(iso->stds, M_USBHC); 2288 return (USBD_NOMEM); 2289 } 2290 2291 void 2292 uhci_device_isoc_done(xfer) 2293 usbd_xfer_handle xfer; 2294 { 2295 uhci_intr_info_t *ii = xfer->hcpriv; 2296 2297 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2298 2299 /* Turn off the interrupt since it is active even if the TD is not. */ 2300 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2301 2302 LIST_REMOVE(ii, list); /* remove from active list */ 2303 } 2304 2305 void 2306 uhci_device_intr_done(xfer) 2307 usbd_xfer_handle xfer; 2308 { 2309 uhci_intr_info_t *ii = xfer->hcpriv; 2310 uhci_softc_t *sc = ii->sc; 2311 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2312 uhci_soft_qh_t *sqh; 2313 int i, npoll; 2314 2315 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2316 2317 npoll = upipe->u.intr.npoll; 2318 for(i = 0; i < npoll; i++) { 2319 sqh = upipe->u.intr.qhs[i]; 2320 sqh->elink = 0; 2321 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2322 } 2323 uhci_free_std_chain(sc, ii->stdstart, 0); 2324 2325 /* XXX Wasteful. */ 2326 if (xfer->pipe->repeat) { 2327 uhci_soft_td_t *data, *dataend; 2328 2329 /* This alloc cannot fail since we freed the chain above. */ 2330 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2331 &xfer->dmabuf, &data, &dataend); 2332 dataend->td.td_status |= LE(UHCI_TD_IOC); 2333 2334 #ifdef UHCI_DEBUG 2335 if (uhcidebug > 10) { 2336 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2337 uhci_dump_tds(data); 2338 uhci_dump_qh(upipe->u.intr.qhs[0]); 2339 } 2340 #endif 2341 2342 ii->stdstart = data; 2343 ii->stdend = dataend; 2344 #if defined(__FreeBSD__) 2345 callout_handle_init(&ii->timeout_handle); 2346 #endif 2347 #ifdef DIAGNOSTIC 2348 if (!ii->isdone) { 2349 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2350 } 2351 ii->isdone = 0; 2352 #endif 2353 for (i = 0; i < npoll; i++) { 2354 sqh = upipe->u.intr.qhs[i]; 2355 sqh->elink = data; 2356 sqh->qh.qh_elink = LE(data->physaddr); 2357 } 2358 } else { 2359 ii->stdstart = 0; /* mark as inactive */ 2360 } 2361 } 2362 2363 /* Deallocate request data structures */ 2364 void 2365 uhci_device_ctrl_done(xfer) 2366 usbd_xfer_handle xfer; 2367 { 2368 uhci_intr_info_t *ii = xfer->hcpriv; 2369 uhci_softc_t *sc = ii->sc; 2370 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2371 2372 #ifdef DIAGNOSTIC 2373 if (!(xfer->rqflags & URQ_REQUEST)) 2374 panic("uhci_ctrl_done: not a request\n"); 2375 #endif 2376 2377 LIST_REMOVE(ii, list); /* remove from active list */ 2378 2379 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2380 2381 if (upipe->u.ctl.length != 0) 2382 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2383 2384 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2385 } 2386 2387 /* Deallocate request data structures */ 2388 void 2389 uhci_device_bulk_done(xfer) 2390 usbd_xfer_handle xfer; 2391 { 2392 uhci_intr_info_t *ii = xfer->hcpriv; 2393 uhci_softc_t *sc = ii->sc; 2394 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2395 2396 LIST_REMOVE(ii, list); /* remove from active list */ 2397 2398 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2399 2400 uhci_free_std_chain(sc, ii->stdstart, 0); 2401 2402 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2403 } 2404 2405 /* Add interrupt QH, called with vflock. */ 2406 void 2407 uhci_add_intr(sc, n, sqh) 2408 uhci_softc_t *sc; 2409 int n; 2410 uhci_soft_qh_t *sqh; 2411 { 2412 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2413 uhci_soft_qh_t *eqh; 2414 2415 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2416 eqh = vf->eqh; 2417 sqh->hlink = eqh->hlink; 2418 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2419 eqh->hlink = sqh; 2420 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2421 vf->eqh = sqh; 2422 vf->bandwidth++; 2423 } 2424 2425 /* Remove interrupt QH, called with vflock. */ 2426 void 2427 uhci_remove_intr(sc, n, sqh) 2428 uhci_softc_t *sc; 2429 int n; 2430 uhci_soft_qh_t *sqh; 2431 { 2432 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2433 uhci_soft_qh_t *pqh; 2434 2435 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2436 2437 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2438 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2439 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2440 DPRINTF(("uhci_remove_intr: QH not found\n")); 2441 return; 2442 } 2443 #else 2444 ; 2445 #endif 2446 pqh->hlink = sqh->hlink; 2447 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2448 if (vf->eqh == sqh) 2449 vf->eqh = pqh; 2450 vf->bandwidth--; 2451 } 2452 2453 usbd_status 2454 uhci_device_setintr(sc, upipe, ival) 2455 uhci_softc_t *sc; 2456 struct uhci_pipe *upipe; 2457 int ival; 2458 { 2459 uhci_soft_qh_t *sqh; 2460 int i, npoll, s; 2461 u_int bestbw, bw, bestoffs, offs; 2462 2463 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2464 if (ival == 0) { 2465 printf("uhci_setintr: 0 interval\n"); 2466 return (USBD_INVAL); 2467 } 2468 2469 if (ival > UHCI_VFRAMELIST_COUNT) 2470 ival = UHCI_VFRAMELIST_COUNT; 2471 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2472 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2473 2474 upipe->u.intr.npoll = npoll; 2475 upipe->u.intr.qhs = 2476 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2477 2478 /* 2479 * Figure out which offset in the schedule that has most 2480 * bandwidth left over. 2481 */ 2482 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2483 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2484 for (bw = i = 0; i < npoll; i++) 2485 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2486 if (bw < bestbw) { 2487 bestbw = bw; 2488 bestoffs = offs; 2489 } 2490 } 2491 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2492 2493 upipe->iinfo->stdstart = 0; 2494 for(i = 0; i < npoll; i++) { 2495 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2496 sqh->elink = 0; 2497 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2498 sqh->pos = MOD(i * ival + bestoffs); 2499 sqh->intr_info = upipe->iinfo; 2500 } 2501 #undef MOD 2502 2503 s = splusb(); 2504 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2505 splx(s); 2506 2507 uhci_lock_frames(sc); 2508 /* Enter QHs into the controller data structures. */ 2509 for(i = 0; i < npoll; i++) 2510 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2511 upipe->u.intr.qhs[i]); 2512 uhci_unlock_frames(sc); 2513 2514 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2515 return (USBD_NORMAL_COMPLETION); 2516 } 2517 2518 /* Open a new pipe. */ 2519 usbd_status 2520 uhci_open(pipe) 2521 usbd_pipe_handle pipe; 2522 { 2523 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2524 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2525 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2526 usbd_status err; 2527 2528 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2529 pipe, pipe->device->address, 2530 ed->bEndpointAddress, sc->sc_addr)); 2531 if (pipe->device->address == sc->sc_addr) { 2532 switch (ed->bEndpointAddress) { 2533 case USB_CONTROL_ENDPOINT: 2534 pipe->methods = &uhci_root_ctrl_methods; 2535 break; 2536 case UE_DIR_IN | UHCI_INTR_ENDPT: 2537 pipe->methods = &uhci_root_intr_methods; 2538 break; 2539 default: 2540 return (USBD_INVAL); 2541 } 2542 } else { 2543 upipe->iinfo = uhci_alloc_intr_info(sc); 2544 if (upipe->iinfo == 0) 2545 return (USBD_NOMEM); 2546 switch (ed->bmAttributes & UE_XFERTYPE) { 2547 case UE_CONTROL: 2548 pipe->methods = &uhci_device_ctrl_methods; 2549 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2550 if (upipe->u.ctl.sqh == NULL) 2551 goto bad; 2552 upipe->u.ctl.setup = uhci_alloc_std(sc); 2553 if (upipe->u.ctl.setup == NULL) { 2554 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2555 goto bad; 2556 } 2557 upipe->u.ctl.stat = uhci_alloc_std(sc); 2558 if (upipe->u.ctl.stat == NULL) { 2559 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2560 uhci_free_std(sc, upipe->u.ctl.setup); 2561 goto bad; 2562 } 2563 err = usb_allocmem(&sc->sc_bus, 2564 sizeof(usb_device_request_t), 2565 0, &upipe->u.ctl.reqdma); 2566 if (err) { 2567 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2568 uhci_free_std(sc, upipe->u.ctl.setup); 2569 uhci_free_std(sc, upipe->u.ctl.stat); 2570 goto bad; 2571 } 2572 break; 2573 case UE_INTERRUPT: 2574 pipe->methods = &uhci_device_intr_methods; 2575 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2576 case UE_ISOCHRONOUS: 2577 pipe->methods = &uhci_device_isoc_methods; 2578 return (uhci_setup_isoc(pipe)); 2579 case UE_BULK: 2580 pipe->methods = &uhci_device_bulk_methods; 2581 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2582 if (upipe->u.bulk.sqh == NULL) 2583 goto bad; 2584 break; 2585 } 2586 } 2587 return (USBD_NORMAL_COMPLETION); 2588 2589 bad: 2590 uhci_free_intr_info(upipe->iinfo); 2591 return (USBD_NOMEM); 2592 } 2593 2594 /* 2595 * Data structures and routines to emulate the root hub. 2596 */ 2597 usb_device_descriptor_t uhci_devd = { 2598 USB_DEVICE_DESCRIPTOR_SIZE, 2599 UDESC_DEVICE, /* type */ 2600 {0x00, 0x01}, /* USB version */ 2601 UCLASS_HUB, /* class */ 2602 USUBCLASS_HUB, /* subclass */ 2603 0, /* protocol */ 2604 64, /* max packet */ 2605 {0},{0},{0x00,0x01}, /* device id */ 2606 1,2,0, /* string indicies */ 2607 1 /* # of configurations */ 2608 }; 2609 2610 usb_config_descriptor_t uhci_confd = { 2611 USB_CONFIG_DESCRIPTOR_SIZE, 2612 UDESC_CONFIG, 2613 {USB_CONFIG_DESCRIPTOR_SIZE + 2614 USB_INTERFACE_DESCRIPTOR_SIZE + 2615 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2616 1, 2617 1, 2618 0, 2619 UC_SELF_POWERED, 2620 0 /* max power */ 2621 }; 2622 2623 usb_interface_descriptor_t uhci_ifcd = { 2624 USB_INTERFACE_DESCRIPTOR_SIZE, 2625 UDESC_INTERFACE, 2626 0, 2627 0, 2628 1, 2629 UCLASS_HUB, 2630 USUBCLASS_HUB, 2631 0, 2632 0 2633 }; 2634 2635 usb_endpoint_descriptor_t uhci_endpd = { 2636 USB_ENDPOINT_DESCRIPTOR_SIZE, 2637 UDESC_ENDPOINT, 2638 UE_DIR_IN | UHCI_INTR_ENDPT, 2639 UE_INTERRUPT, 2640 {8}, 2641 255 2642 }; 2643 2644 usb_hub_descriptor_t uhci_hubd_piix = { 2645 USB_HUB_DESCRIPTOR_SIZE, 2646 UDESC_HUB, 2647 2, 2648 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2649 50, /* power on to power good */ 2650 0, 2651 { 0x00 }, /* both ports are removable */ 2652 }; 2653 2654 int 2655 uhci_str(p, l, s) 2656 usb_string_descriptor_t *p; 2657 int l; 2658 char *s; 2659 { 2660 int i; 2661 2662 if (l == 0) 2663 return (0); 2664 p->bLength = 2 * strlen(s) + 2; 2665 if (l == 1) 2666 return (1); 2667 p->bDescriptorType = UDESC_STRING; 2668 l -= 2; 2669 for (i = 0; s[i] && l > 1; i++, l -= 2) 2670 USETW2(p->bString[i], 0, s[i]); 2671 return (2*i+2); 2672 } 2673 2674 /* 2675 * Simulate a hardware hub by handling all the necessary requests. 2676 */ 2677 usbd_status 2678 uhci_root_ctrl_transfer(xfer) 2679 usbd_xfer_handle xfer; 2680 { 2681 usbd_status err; 2682 2683 /* Insert last in queue. */ 2684 err = usb_insert_transfer(xfer); 2685 if (err) 2686 return (err); 2687 2688 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2689 * start first 2690 */ 2691 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2692 } 2693 2694 usbd_status 2695 uhci_root_ctrl_start(xfer) 2696 usbd_xfer_handle xfer; 2697 { 2698 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2699 usb_device_request_t *req; 2700 void *buf = NULL; 2701 int port, x; 2702 int s, len, value, index, status, change, l, totlen = 0; 2703 usb_port_status_t ps; 2704 usbd_status err; 2705 2706 #ifdef DIAGNOSTIC 2707 if (!(xfer->rqflags & URQ_REQUEST)) 2708 panic("uhci_root_ctrl_transfer: not a request\n"); 2709 #endif 2710 req = &xfer->request; 2711 2712 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2713 req->bmRequestType, req->bRequest)); 2714 2715 len = UGETW(req->wLength); 2716 value = UGETW(req->wValue); 2717 index = UGETW(req->wIndex); 2718 2719 if (len != 0) 2720 buf = KERNADDR(&xfer->dmabuf); 2721 2722 #define C(x,y) ((x) | ((y) << 8)) 2723 switch(C(req->bRequest, req->bmRequestType)) { 2724 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2725 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2726 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2727 /* 2728 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2729 * for the integrated root hub. 2730 */ 2731 break; 2732 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2733 if (len > 0) { 2734 *(u_int8_t *)buf = sc->sc_conf; 2735 totlen = 1; 2736 } 2737 break; 2738 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2739 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2740 switch(value >> 8) { 2741 case UDESC_DEVICE: 2742 if ((value & 0xff) != 0) { 2743 err = USBD_IOERROR; 2744 goto ret; 2745 } 2746 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2747 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2748 memcpy(buf, &uhci_devd, l); 2749 break; 2750 case UDESC_CONFIG: 2751 if ((value & 0xff) != 0) { 2752 err = USBD_IOERROR; 2753 goto ret; 2754 } 2755 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2756 memcpy(buf, &uhci_confd, l); 2757 buf = (char *)buf + l; 2758 len -= l; 2759 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2760 totlen += l; 2761 memcpy(buf, &uhci_ifcd, l); 2762 buf = (char *)buf + l; 2763 len -= l; 2764 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2765 totlen += l; 2766 memcpy(buf, &uhci_endpd, l); 2767 break; 2768 case UDESC_STRING: 2769 if (len == 0) 2770 break; 2771 *(u_int8_t *)buf = 0; 2772 totlen = 1; 2773 switch (value & 0xff) { 2774 case 1: /* Vendor */ 2775 totlen = uhci_str(buf, len, sc->sc_vendor); 2776 break; 2777 case 2: /* Product */ 2778 totlen = uhci_str(buf, len, "UHCI root hub"); 2779 break; 2780 } 2781 break; 2782 default: 2783 err = USBD_IOERROR; 2784 goto ret; 2785 } 2786 break; 2787 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2788 if (len > 0) { 2789 *(u_int8_t *)buf = 0; 2790 totlen = 1; 2791 } 2792 break; 2793 case C(UR_GET_STATUS, UT_READ_DEVICE): 2794 if (len > 1) { 2795 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2796 totlen = 2; 2797 } 2798 break; 2799 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2800 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2801 if (len > 1) { 2802 USETW(((usb_status_t *)buf)->wStatus, 0); 2803 totlen = 2; 2804 } 2805 break; 2806 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2807 if (value >= USB_MAX_DEVICES) { 2808 err = USBD_IOERROR; 2809 goto ret; 2810 } 2811 sc->sc_addr = value; 2812 break; 2813 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2814 if (value != 0 && value != 1) { 2815 err = USBD_IOERROR; 2816 goto ret; 2817 } 2818 sc->sc_conf = value; 2819 break; 2820 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2821 break; 2822 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2823 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2824 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2825 err = USBD_IOERROR; 2826 goto ret; 2827 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2828 break; 2829 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2830 break; 2831 /* Hub requests */ 2832 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2833 break; 2834 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2835 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2836 "port=%d feature=%d\n", 2837 index, value)); 2838 if (index == 1) 2839 port = UHCI_PORTSC1; 2840 else if (index == 2) 2841 port = UHCI_PORTSC2; 2842 else { 2843 err = USBD_IOERROR; 2844 goto ret; 2845 } 2846 switch(value) { 2847 case UHF_PORT_ENABLE: 2848 x = UREAD2(sc, port); 2849 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2850 break; 2851 case UHF_PORT_SUSPEND: 2852 x = UREAD2(sc, port); 2853 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2854 break; 2855 case UHF_PORT_RESET: 2856 x = UREAD2(sc, port); 2857 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2858 break; 2859 case UHF_C_PORT_CONNECTION: 2860 x = UREAD2(sc, port); 2861 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2862 break; 2863 case UHF_C_PORT_ENABLE: 2864 x = UREAD2(sc, port); 2865 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2866 break; 2867 case UHF_C_PORT_OVER_CURRENT: 2868 x = UREAD2(sc, port); 2869 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2870 break; 2871 case UHF_C_PORT_RESET: 2872 sc->sc_isreset = 0; 2873 err = USBD_NORMAL_COMPLETION; 2874 goto ret; 2875 case UHF_PORT_CONNECTION: 2876 case UHF_PORT_OVER_CURRENT: 2877 case UHF_PORT_POWER: 2878 case UHF_PORT_LOW_SPEED: 2879 case UHF_C_PORT_SUSPEND: 2880 default: 2881 err = USBD_IOERROR; 2882 goto ret; 2883 } 2884 break; 2885 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2886 if (index == 1) 2887 port = UHCI_PORTSC1; 2888 else if (index == 2) 2889 port = UHCI_PORTSC2; 2890 else { 2891 err = USBD_IOERROR; 2892 goto ret; 2893 } 2894 if (len > 0) { 2895 *(u_int8_t *)buf = 2896 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2897 UHCI_PORTSC_LS_SHIFT; 2898 totlen = 1; 2899 } 2900 break; 2901 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2902 if (value != 0) { 2903 err = USBD_IOERROR; 2904 goto ret; 2905 } 2906 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2907 totlen = l; 2908 memcpy(buf, &uhci_hubd_piix, l); 2909 break; 2910 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2911 if (len != 4) { 2912 err = USBD_IOERROR; 2913 goto ret; 2914 } 2915 memset(buf, 0, len); 2916 totlen = len; 2917 break; 2918 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2919 if (index == 1) 2920 port = UHCI_PORTSC1; 2921 else if (index == 2) 2922 port = UHCI_PORTSC2; 2923 else { 2924 err = USBD_IOERROR; 2925 goto ret; 2926 } 2927 if (len != 4) { 2928 err = USBD_IOERROR; 2929 goto ret; 2930 } 2931 x = UREAD2(sc, port); 2932 status = change = 0; 2933 if (x & UHCI_PORTSC_CCS ) 2934 status |= UPS_CURRENT_CONNECT_STATUS; 2935 if (x & UHCI_PORTSC_CSC ) 2936 change |= UPS_C_CONNECT_STATUS; 2937 if (x & UHCI_PORTSC_PE ) 2938 status |= UPS_PORT_ENABLED; 2939 if (x & UHCI_PORTSC_POEDC) 2940 change |= UPS_C_PORT_ENABLED; 2941 if (x & UHCI_PORTSC_OCI ) 2942 status |= UPS_OVERCURRENT_INDICATOR; 2943 if (x & UHCI_PORTSC_OCIC ) 2944 change |= UPS_C_OVERCURRENT_INDICATOR; 2945 if (x & UHCI_PORTSC_SUSP ) 2946 status |= UPS_SUSPEND; 2947 if (x & UHCI_PORTSC_LSDA ) 2948 status |= UPS_LOW_SPEED; 2949 status |= UPS_PORT_POWER; 2950 if (sc->sc_isreset) 2951 change |= UPS_C_PORT_RESET; 2952 USETW(ps.wPortStatus, status); 2953 USETW(ps.wPortChange, change); 2954 l = min(len, sizeof ps); 2955 memcpy(buf, &ps, l); 2956 totlen = l; 2957 break; 2958 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2959 err = USBD_IOERROR; 2960 goto ret; 2961 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2962 break; 2963 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2964 if (index == 1) 2965 port = UHCI_PORTSC1; 2966 else if (index == 2) 2967 port = UHCI_PORTSC2; 2968 else { 2969 err = USBD_IOERROR; 2970 goto ret; 2971 } 2972 switch(value) { 2973 case UHF_PORT_ENABLE: 2974 x = UREAD2(sc, port); 2975 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2976 break; 2977 case UHF_PORT_SUSPEND: 2978 x = UREAD2(sc, port); 2979 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2980 break; 2981 case UHF_PORT_RESET: 2982 x = UREAD2(sc, port); 2983 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2984 usb_delay_ms(&sc->sc_bus, 10); 2985 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2986 delay(100); 2987 x = UREAD2(sc, port); 2988 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2989 delay(100); 2990 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2991 index, UREAD2(sc, port))); 2992 sc->sc_isreset = 1; 2993 break; 2994 case UHF_C_PORT_CONNECTION: 2995 case UHF_C_PORT_ENABLE: 2996 case UHF_C_PORT_OVER_CURRENT: 2997 case UHF_PORT_CONNECTION: 2998 case UHF_PORT_OVER_CURRENT: 2999 case UHF_PORT_POWER: 3000 case UHF_PORT_LOW_SPEED: 3001 case UHF_C_PORT_SUSPEND: 3002 case UHF_C_PORT_RESET: 3003 default: 3004 err = USBD_IOERROR; 3005 goto ret; 3006 } 3007 break; 3008 default: 3009 err = USBD_IOERROR; 3010 goto ret; 3011 } 3012 xfer->actlen = totlen; 3013 err = USBD_NORMAL_COMPLETION; 3014 ret: 3015 xfer->status = err; 3016 xfer->hcpriv = 0; 3017 s = splusb(); 3018 usb_transfer_complete(xfer); 3019 splx(s); 3020 return (USBD_IN_PROGRESS); 3021 } 3022 3023 /* Abort a root control request. */ 3024 void 3025 uhci_root_ctrl_abort(xfer) 3026 usbd_xfer_handle xfer; 3027 { 3028 /* Nothing to do, all transfers are synchronous. */ 3029 } 3030 3031 /* Close the root pipe. */ 3032 void 3033 uhci_root_ctrl_close(pipe) 3034 usbd_pipe_handle pipe; 3035 { 3036 DPRINTF(("uhci_root_ctrl_close\n")); 3037 } 3038 3039 /* Abort a root interrupt request. */ 3040 void 3041 uhci_root_intr_abort(xfer) 3042 usbd_xfer_handle xfer; 3043 { 3044 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3045 3046 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3047 sc->sc_has_timo = NULL; 3048 3049 if (xfer->pipe->intrxfer == xfer) { 3050 DPRINTF(("uhci_root_intr_abort: remove\n")); 3051 xfer->pipe->intrxfer = 0; 3052 } 3053 xfer->status = USBD_CANCELLED; 3054 usb_transfer_complete(xfer); 3055 } 3056 3057 usbd_status 3058 uhci_root_intr_transfer(xfer) 3059 usbd_xfer_handle xfer; 3060 { 3061 usbd_status err; 3062 3063 /* Insert last in queue. */ 3064 err = usb_insert_transfer(xfer); 3065 if (err) 3066 return (err); 3067 3068 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3069 * start first 3070 */ 3071 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3072 } 3073 3074 /* Start a transfer on the root interrupt pipe */ 3075 usbd_status 3076 uhci_root_intr_start(xfer) 3077 usbd_xfer_handle xfer; 3078 { 3079 usbd_pipe_handle pipe = xfer->pipe; 3080 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3081 3082 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3083 xfer, xfer->length, xfer->flags)); 3084 3085 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3086 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3087 sc->sc_has_timo = xfer; 3088 return (USBD_IN_PROGRESS); 3089 } 3090 3091 /* Close the root interrupt pipe. */ 3092 void 3093 uhci_root_intr_close(pipe) 3094 usbd_pipe_handle pipe; 3095 { 3096 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3097 3098 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3099 sc->sc_has_timo = NULL; 3100 DPRINTF(("uhci_root_intr_close\n")); 3101 } 3102
Indexes created Tue Sep 30 20:09:53 GMT 2025