uhci.c revision 1.79
1 /* $NetBSD: uhci.c,v 1.79 2000/01/19 01:04:26 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (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 controller process error\n", 976 USBDEVNAME(sc->sc_bus.bdev)); 977 } 978 if (status & UHCI_STS_HCPE) { 979 ack |= UHCI_STS_HCPE; 980 printf("%s: host system error\n", 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 } 987 988 if (ack) /* acknowledge the ints */ 989 UWRITE2(sc, UHCI_STS, ack); 990 else /* nothing to acknowledge */ 991 return (0); 992 993 sc->sc_bus.intr_context++; 994 sc->sc_bus.no_intrs++; 995 996 /* 997 * Interrupts on UHCI really suck. When the host controller 998 * interrupts because a transfer is completed there is no 999 * way of knowing which transfer it was. You can scan down 1000 * the TDs and QHs of the previous frame to limit the search, 1001 * but that assumes that the interrupt was not delayed by more 1002 * than 1 ms, which may not always be true (e.g. after debug 1003 * output on a slow console). 1004 * We scan all interrupt descriptors to see if any have 1005 * completed. 1006 */ 1007 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1008 uhci_check_intr(sc, ii); 1009 1010 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1011 1012 sc->sc_bus.intr_context--; 1013 1014 return (1); 1015 } 1016 1017 /* Check for an interrupt. */ 1018 void 1019 uhci_check_intr(sc, ii) 1020 uhci_softc_t *sc; 1021 uhci_intr_info_t *ii; 1022 { 1023 uhci_soft_td_t *std, *lstd; 1024 u_int32_t status; 1025 1026 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1027 #ifdef DIAGNOSTIC 1028 if (ii == NULL) { 1029 printf("uhci_check_intr: no ii? %p\n", ii); 1030 return; 1031 } 1032 #endif 1033 if (ii->stdstart == NULL) 1034 return; 1035 lstd = ii->stdend; 1036 #ifdef DIAGNOSTIC 1037 if (lstd == NULL) { 1038 printf("uhci_check_intr: std==0\n"); 1039 return; 1040 } 1041 #endif 1042 /* 1043 * If the last TD is still active we need to check whether there 1044 * is a an error somewhere in the middle, or whether there was a 1045 * short packet (SPD and not ACTIVE). 1046 */ 1047 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1048 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1049 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1050 status = LE(std->td.td_status); 1051 if ((status & UHCI_TD_STALLED) || 1052 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 1053 UHCI_TD_SPD) 1054 goto done; 1055 } 1056 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1057 ii, ii->stdstart)); 1058 return; 1059 } 1060 done: 1061 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1062 uhci_idone(ii); 1063 } 1064 1065 /* Called at splusb() */ 1066 void 1067 uhci_idone(ii) 1068 uhci_intr_info_t *ii; 1069 { 1070 usbd_xfer_handle xfer = ii->xfer; 1071 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1072 uhci_soft_td_t *std; 1073 u_int32_t status = 0, nstatus; 1074 int actlen; 1075 1076 #ifdef DIAGNOSTIC 1077 { 1078 int s = splhigh(); 1079 if (ii->isdone) { 1080 splx(s); 1081 printf("uhci_idone: ii=%p is done!\n", ii); 1082 return; 1083 } 1084 ii->isdone = 1; 1085 splx(s); 1086 } 1087 #endif 1088 1089 if (xfer->status == USBD_CANCELLED || 1090 xfer->status == USBD_TIMEOUT) { 1091 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1092 return; 1093 } 1094 1095 if (xfer->nframes != 0) { 1096 /* Isoc transfer, do things differently. */ 1097 uhci_soft_td_t **stds = upipe->u.iso.stds; 1098 int i, n, nframes; 1099 1100 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1101 1102 nframes = xfer->nframes; 1103 actlen = 0; 1104 n = xfer->hcprivint; 1105 for (i = 0; i < nframes; i++) { 1106 std = stds[n]; 1107 #ifdef UHCI_DEBUG 1108 if (uhcidebug > 5) { 1109 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1110 uhci_dump_td(std); 1111 } 1112 #endif 1113 if (++n >= UHCI_VFRAMELIST_COUNT) 1114 n = 0; 1115 status = LE(std->td.td_status); 1116 actlen += UHCI_TD_GET_ACTLEN(status); 1117 } 1118 upipe->u.iso.inuse -= nframes; 1119 xfer->actlen = actlen; 1120 xfer->status = USBD_NORMAL_COMPLETION; 1121 xfer->hcpriv = ii; 1122 usb_transfer_complete(xfer); 1123 return; 1124 } 1125 1126 #ifdef UHCI_DEBUG 1127 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1128 ii, xfer, upipe)); 1129 if (uhcidebug > 10) 1130 uhci_dump_tds(ii->stdstart); 1131 #endif 1132 1133 /* The transfer is done, compute actual length and status. */ 1134 actlen = 0; 1135 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1136 nstatus = LE(std->td.td_status); 1137 if (nstatus & UHCI_TD_ACTIVE) 1138 break; 1139 1140 status = nstatus; 1141 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1142 actlen += UHCI_TD_GET_ACTLEN(status); 1143 } 1144 /* If there are left over TDs we need to update the toggle. */ 1145 if (std != NULL) 1146 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1147 1148 status &= UHCI_TD_ERROR; 1149 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1150 actlen, status)); 1151 xfer->actlen = actlen; 1152 if (status != 0) { 1153 DPRINTFN((status == UHCI_TD_STALLED)*10, 1154 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1155 "status 0x%b\n", 1156 xfer->pipe->device->address, 1157 xfer->pipe->endpoint->edesc->bEndpointAddress, 1158 (int)status, 1159 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1160 "STALLED\30ACTIVE")); 1161 if (status == UHCI_TD_STALLED) 1162 xfer->status = USBD_STALLED; 1163 else 1164 xfer->status = USBD_IOERROR; /* more info XXX */ 1165 } else { 1166 xfer->status = USBD_NORMAL_COMPLETION; 1167 } 1168 xfer->hcpriv = ii; 1169 usb_transfer_complete(xfer); 1170 } 1171 1172 /* 1173 * Called when a request does not complete. 1174 */ 1175 void 1176 uhci_timeout(addr) 1177 void *addr; 1178 { 1179 uhci_intr_info_t *ii = addr; 1180 1181 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1182 1183 #ifdef UHCI_DEBUG 1184 if (uhcidebug > 10) 1185 uhci_dump_tds(ii->stdstart); 1186 #endif 1187 1188 ii->xfer->device->bus->intr_context++; 1189 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1190 ii->xfer->device->bus->intr_context--; 1191 } 1192 1193 /* 1194 * Wait here until controller claims to have an interrupt. 1195 * Then call uhci_intr and return. Use timeout to avoid waiting 1196 * too long. 1197 * Only used during boot when interrupts are not enabled yet. 1198 */ 1199 void 1200 uhci_waitintr(sc, xfer) 1201 uhci_softc_t *sc; 1202 usbd_xfer_handle xfer; 1203 { 1204 int timo = xfer->timeout; 1205 uhci_intr_info_t *ii; 1206 1207 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1208 1209 xfer->status = USBD_IN_PROGRESS; 1210 for (; timo >= 0; timo--) { 1211 usb_delay_ms(&sc->sc_bus, 1); 1212 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1213 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1214 uhci_intr(sc); 1215 if (xfer->status != USBD_IN_PROGRESS) 1216 return; 1217 } 1218 } 1219 1220 /* Timeout */ 1221 DPRINTF(("uhci_waitintr: timeout\n")); 1222 for (ii = LIST_FIRST(&sc->sc_intrhead); 1223 ii != NULL && ii->xfer != xfer; 1224 ii = LIST_NEXT(ii, list)) 1225 ; 1226 #ifdef DIAGNOSTIC 1227 if (ii == NULL) 1228 panic("uhci_waitintr: lost intr_info\n"); 1229 #endif 1230 uhci_idone(ii); 1231 } 1232 1233 void 1234 uhci_poll(bus) 1235 struct usbd_bus *bus; 1236 { 1237 uhci_softc_t *sc = (uhci_softc_t *)bus; 1238 1239 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1240 uhci_intr(sc); 1241 } 1242 1243 #if 0 1244 void 1245 uhci_reset(p) 1246 void *p; 1247 { 1248 uhci_softc_t *sc = p; 1249 int n; 1250 1251 UHCICMD(sc, UHCI_CMD_HCRESET); 1252 /* The reset bit goes low when the controller is done. */ 1253 for (n = 0; n < UHCI_RESET_TIMEOUT && 1254 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1255 delay(100); 1256 if (n >= UHCI_RESET_TIMEOUT) 1257 printf("%s: controller did not reset\n", 1258 USBDEVNAME(sc->sc_bus.bdev)); 1259 } 1260 #endif 1261 1262 usbd_status 1263 uhci_run(sc, run) 1264 uhci_softc_t *sc; 1265 int run; 1266 { 1267 int s, n, running; 1268 u_int16_t cmd; 1269 1270 run = run != 0; 1271 s = splusb(); 1272 DPRINTF(("uhci_run: setting run=%d\n", run)); 1273 cmd = UREAD2(sc, UHCI_CMD); 1274 if (run) 1275 cmd |= UHCI_CMD_RS; 1276 else 1277 cmd &= ~UHCI_CMD_RS; 1278 UHCICMD(sc, cmd); 1279 for(n = 0; n < 10; n++) { 1280 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1281 /* return when we've entered the state we want */ 1282 if (run == running) { 1283 splx(s); 1284 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1285 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1286 return (USBD_NORMAL_COMPLETION); 1287 } 1288 usb_delay_ms(&sc->sc_bus, 1); 1289 } 1290 splx(s); 1291 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1292 run ? "start" : "stop"); 1293 return (USBD_IOERROR); 1294 } 1295 1296 /* 1297 * Memory management routines. 1298 * uhci_alloc_std allocates TDs 1299 * uhci_alloc_sqh allocates QHs 1300 * These two routines do their own free list management, 1301 * partly for speed, partly because allocating DMAable memory 1302 * has page size granularaity so much memory would be wasted if 1303 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1304 */ 1305 1306 uhci_soft_td_t * 1307 uhci_alloc_std(sc) 1308 uhci_softc_t *sc; 1309 { 1310 uhci_soft_td_t *std; 1311 usbd_status err; 1312 int i, offs; 1313 usb_dma_t dma; 1314 1315 if (sc->sc_freetds == NULL) { 1316 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1317 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1318 UHCI_TD_ALIGN, &dma); 1319 if (err) 1320 return (0); 1321 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1322 offs = i * UHCI_STD_SIZE; 1323 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1324 std->physaddr = DMAADDR(&dma) + offs; 1325 std->link.std = sc->sc_freetds; 1326 sc->sc_freetds = std; 1327 } 1328 } 1329 std = sc->sc_freetds; 1330 sc->sc_freetds = std->link.std; 1331 memset(&std->td, 0, sizeof(uhci_td_t)); 1332 return std; 1333 } 1334 1335 void 1336 uhci_free_std(sc, std) 1337 uhci_softc_t *sc; 1338 uhci_soft_td_t *std; 1339 { 1340 #ifdef DIAGNOSTIC 1341 #define TD_IS_FREE 0x12345678 1342 if (std->td.td_token == LE(TD_IS_FREE)) { 1343 printf("uhci_free_std: freeing free TD %p\n", std); 1344 return; 1345 } 1346 std->td.td_token = LE(TD_IS_FREE); 1347 #endif 1348 std->link.std = sc->sc_freetds; 1349 sc->sc_freetds = std; 1350 } 1351 1352 uhci_soft_qh_t * 1353 uhci_alloc_sqh(sc) 1354 uhci_softc_t *sc; 1355 { 1356 uhci_soft_qh_t *sqh; 1357 usbd_status err; 1358 int i, offs; 1359 usb_dma_t dma; 1360 1361 if (sc->sc_freeqhs == NULL) { 1362 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1363 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1364 UHCI_QH_ALIGN, &dma); 1365 if (err) 1366 return (0); 1367 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1368 offs = i * UHCI_SQH_SIZE; 1369 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1370 sqh->physaddr = DMAADDR(&dma) + offs; 1371 sqh->hlink = sc->sc_freeqhs; 1372 sc->sc_freeqhs = sqh; 1373 } 1374 } 1375 sqh = sc->sc_freeqhs; 1376 sc->sc_freeqhs = sqh->hlink; 1377 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1378 return (sqh); 1379 } 1380 1381 void 1382 uhci_free_sqh(sc, sqh) 1383 uhci_softc_t *sc; 1384 uhci_soft_qh_t *sqh; 1385 { 1386 sqh->hlink = sc->sc_freeqhs; 1387 sc->sc_freeqhs = sqh; 1388 } 1389 1390 #if 0 1391 /* 1392 * Enter a list of transfers onto a control queue. 1393 * Called at splusb() 1394 */ 1395 void 1396 uhci_enter_ctl_q(sc, sqh, ii) 1397 uhci_softc_t *sc; 1398 uhci_soft_qh_t *sqh; 1399 uhci_intr_info_t *ii; 1400 { 1401 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1402 1403 } 1404 #endif 1405 1406 void 1407 uhci_free_std_chain(sc, std, stdend) 1408 uhci_softc_t *sc; 1409 uhci_soft_td_t *std; 1410 uhci_soft_td_t *stdend; 1411 { 1412 uhci_soft_td_t *p; 1413 1414 for (; std != stdend; std = p) { 1415 p = std->link.std; 1416 uhci_free_std(sc, std); 1417 } 1418 } 1419 1420 usbd_status 1421 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1422 struct uhci_pipe *upipe; 1423 uhci_softc_t *sc; 1424 int len, rd; 1425 u_int16_t flags; 1426 usb_dma_t *dma; 1427 uhci_soft_td_t **sp, **ep; 1428 { 1429 uhci_soft_td_t *p, *lastp; 1430 uhci_physaddr_t lastlink; 1431 int i, ntd, l, tog, maxp; 1432 u_int32_t status; 1433 int addr = upipe->pipe.device->address; 1434 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1435 1436 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1437 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1438 upipe->pipe.device->lowspeed, flags)); 1439 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1440 if (maxp == 0) { 1441 printf("uhci_alloc_std_chain: maxp=0\n"); 1442 return (USBD_INVAL); 1443 } 1444 ntd = (len + maxp - 1) / maxp; 1445 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1446 ntd++; 1447 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1448 if (ntd == 0) { 1449 *sp = *ep = 0; 1450 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1451 return (USBD_NORMAL_COMPLETION); 1452 } 1453 tog = upipe->nexttoggle; 1454 if (ntd % 2 == 0) 1455 tog ^= 1; 1456 upipe->nexttoggle = tog ^ 1; 1457 lastp = 0; 1458 lastlink = UHCI_PTR_T; 1459 ntd--; 1460 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1461 if (upipe->pipe.device->lowspeed) 1462 status |= UHCI_TD_LS; 1463 if (flags & USBD_SHORT_XFER_OK) 1464 status |= UHCI_TD_SPD; 1465 for (i = ntd; i >= 0; i--) { 1466 p = uhci_alloc_std(sc); 1467 if (p == NULL) { 1468 uhci_free_std_chain(sc, lastp, 0); 1469 return (USBD_NOMEM); 1470 } 1471 p->link.std = lastp; 1472 if (lastlink == UHCI_PTR_T) 1473 p->td.td_link = LE(lastlink); 1474 else 1475 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1476 lastp = p; 1477 lastlink = p->physaddr; 1478 p->td.td_status = LE(status); 1479 if (i == ntd) { 1480 /* last TD */ 1481 l = len % maxp; 1482 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1483 l = maxp; 1484 *ep = p; 1485 } else 1486 l = maxp; 1487 p->td.td_token = 1488 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1489 UHCI_TD_OUT(l, endpt, addr, tog)); 1490 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1491 tog ^= 1; 1492 } 1493 *sp = lastp; 1494 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1495 upipe->nexttoggle)); 1496 return (USBD_NORMAL_COMPLETION); 1497 } 1498 1499 void 1500 uhci_device_clear_toggle(pipe) 1501 usbd_pipe_handle pipe; 1502 { 1503 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1504 upipe->nexttoggle = 0; 1505 } 1506 1507 void 1508 uhci_noop(pipe) 1509 usbd_pipe_handle pipe; 1510 { 1511 } 1512 1513 usbd_status 1514 uhci_device_bulk_transfer(xfer) 1515 usbd_xfer_handle xfer; 1516 { 1517 usbd_status err; 1518 1519 /* Insert last in queue. */ 1520 err = usb_insert_transfer(xfer); 1521 if (err) 1522 return (err); 1523 1524 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1525 * start first 1526 */ 1527 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1528 } 1529 1530 usbd_status 1531 uhci_device_bulk_start(xfer) 1532 usbd_xfer_handle xfer; 1533 { 1534 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1535 usbd_device_handle dev = upipe->pipe.device; 1536 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1537 uhci_intr_info_t *ii = upipe->iinfo; 1538 uhci_soft_td_t *data, *dataend; 1539 uhci_soft_qh_t *sqh; 1540 usbd_status err; 1541 int len, isread, endpt; 1542 int s; 1543 1544 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1545 xfer, xfer->length, xfer->flags)); 1546 1547 #ifdef DIAGNOSTIC 1548 if (xfer->rqflags & URQ_REQUEST) 1549 panic("uhci_device_bulk_transfer: a request\n"); 1550 #endif 1551 1552 len = xfer->length; 1553 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1554 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1555 sqh = upipe->u.bulk.sqh; 1556 1557 upipe->u.bulk.isread = isread; 1558 upipe->u.bulk.length = len; 1559 1560 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1561 &xfer->dmabuf, &data, &dataend); 1562 if (err) 1563 return (err); 1564 dataend->td.td_status |= LE(UHCI_TD_IOC); 1565 1566 #ifdef UHCI_DEBUG 1567 if (uhcidebug > 8) { 1568 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1569 uhci_dump_tds(data); 1570 } 1571 #endif 1572 1573 /* Set up interrupt info. */ 1574 ii->xfer = xfer; 1575 ii->stdstart = data; 1576 ii->stdend = dataend; 1577 #if defined(__FreeBSD__) 1578 callout_handle_init(&ii->timeout_handle); 1579 #endif 1580 #ifdef DIAGNOSTIC 1581 if (!ii->isdone) { 1582 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1583 } 1584 ii->isdone = 0; 1585 #endif 1586 1587 sqh->elink = data; 1588 sqh->qh.qh_elink = LE(data->physaddr); 1589 sqh->intr_info = ii; 1590 1591 s = splusb(); 1592 uhci_add_bulk(sc, sqh); 1593 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1594 1595 if (xfer->timeout && !sc->sc_bus.use_polling) { 1596 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1597 ii->timeout_handle); 1598 } 1599 splx(s); 1600 1601 #ifdef UHCI_DEBUG 1602 if (uhcidebug > 10) { 1603 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1604 uhci_dump_tds(data); 1605 } 1606 #endif 1607 1608 if (sc->sc_bus.use_polling) 1609 uhci_waitintr(sc, xfer); 1610 1611 return (USBD_IN_PROGRESS); 1612 } 1613 1614 /* Abort a device bulk request. */ 1615 void 1616 uhci_device_bulk_abort(xfer) 1617 usbd_xfer_handle xfer; 1618 { 1619 DPRINTF(("uhci_device_bulk_abort:\n")); 1620 uhci_abort_xfer(xfer, USBD_CANCELLED); 1621 } 1622 1623 void 1624 uhci_abort_xfer(xfer, status) 1625 usbd_xfer_handle xfer; 1626 usbd_status status; 1627 { 1628 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1629 uhci_intr_info_t *ii = upipe->iinfo; 1630 uhci_soft_td_t *std; 1631 1632 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1633 1634 /* Make interrupt routine ignore it, */ 1635 xfer->status = status; 1636 1637 /* don't timeout, */ 1638 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1639 1640 /* make hardware ignore it, */ 1641 for (std = ii->stdstart; std != 0; std = std->link.std) 1642 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1643 1644 xfer->hcpriv = ii; 1645 1646 #if 1 1647 /* Make sure hardware has completed. */ 1648 if (xfer->device->bus->intr_context) { 1649 /* We have no process context, so we can't use tsleep(). */ 1650 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1651 } else { 1652 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1653 KASSERT(intr_nesting_level == 0, 1654 ("ohci_abort_req in interrupt context")); 1655 #endif 1656 usb_delay_ms(xfer->pipe->device->bus, 1); 1657 /* and call final part of interrupt handler. */ 1658 uhci_abort_xfer_end(xfer); 1659 } 1660 #else 1661 delay(1000); 1662 uhci_abort_xfer_end(xfer); 1663 #endif 1664 } 1665 1666 void 1667 uhci_abort_xfer_end(v) 1668 void *v; 1669 { 1670 usbd_xfer_handle xfer = v; 1671 int s; 1672 1673 s = splusb(); 1674 usb_transfer_complete(xfer); 1675 splx(s); 1676 } 1677 1678 /* Close a device bulk pipe. */ 1679 void 1680 uhci_device_bulk_close(pipe) 1681 usbd_pipe_handle pipe; 1682 { 1683 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1684 usbd_device_handle dev = upipe->pipe.device; 1685 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1686 1687 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1688 uhci_free_intr_info(upipe->iinfo); 1689 /* XXX free other resources */ 1690 } 1691 1692 usbd_status 1693 uhci_device_ctrl_transfer(xfer) 1694 usbd_xfer_handle xfer; 1695 { 1696 usbd_status err; 1697 1698 /* Insert last in queue. */ 1699 err = usb_insert_transfer(xfer); 1700 if (err) 1701 return (err); 1702 1703 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1704 * start first 1705 */ 1706 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1707 } 1708 1709 usbd_status 1710 uhci_device_ctrl_start(xfer) 1711 usbd_xfer_handle xfer; 1712 { 1713 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1714 usbd_status err; 1715 1716 #ifdef DIAGNOSTIC 1717 if (!(xfer->rqflags & URQ_REQUEST)) 1718 panic("uhci_device_ctrl_transfer: not a request\n"); 1719 #endif 1720 1721 err = uhci_device_request(xfer); 1722 if (err) 1723 return (err); 1724 1725 if (sc->sc_bus.use_polling) 1726 uhci_waitintr(sc, xfer); 1727 return (USBD_IN_PROGRESS); 1728 } 1729 1730 usbd_status 1731 uhci_device_intr_transfer(xfer) 1732 usbd_xfer_handle xfer; 1733 { 1734 usbd_status err; 1735 1736 /* Insert last in queue. */ 1737 err = usb_insert_transfer(xfer); 1738 if (err) 1739 return (err); 1740 1741 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1742 * start first 1743 */ 1744 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1745 } 1746 1747 usbd_status 1748 uhci_device_intr_start(xfer) 1749 usbd_xfer_handle xfer; 1750 { 1751 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1752 usbd_device_handle dev = upipe->pipe.device; 1753 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1754 uhci_intr_info_t *ii = upipe->iinfo; 1755 uhci_soft_td_t *data, *dataend; 1756 uhci_soft_qh_t *sqh; 1757 usbd_status err; 1758 int i, s; 1759 1760 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1761 xfer, xfer->length, xfer->flags)); 1762 1763 #ifdef DIAGNOSTIC 1764 if (xfer->rqflags & URQ_REQUEST) 1765 panic("uhci_device_intr_transfer: a request\n"); 1766 #endif 1767 1768 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1769 &xfer->dmabuf, &data, &dataend); 1770 if (err) 1771 return (err); 1772 dataend->td.td_status |= LE(UHCI_TD_IOC); 1773 1774 #ifdef UHCI_DEBUG 1775 if (uhcidebug > 10) { 1776 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1777 uhci_dump_tds(data); 1778 uhci_dump_qh(upipe->u.intr.qhs[0]); 1779 } 1780 #endif 1781 1782 s = splusb(); 1783 /* Set up interrupt info. */ 1784 ii->xfer = xfer; 1785 ii->stdstart = data; 1786 ii->stdend = dataend; 1787 #if defined(__FreeBSD__) 1788 callout_handle_init(&ii->timeout_handle); 1789 #endif 1790 #ifdef DIAGNOSTIC 1791 if (!ii->isdone) { 1792 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1793 } 1794 ii->isdone = 0; 1795 #endif 1796 1797 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1798 upipe->u.intr.qhs[0])); 1799 for (i = 0; i < upipe->u.intr.npoll; i++) { 1800 sqh = upipe->u.intr.qhs[i]; 1801 sqh->elink = data; 1802 sqh->qh.qh_elink = LE(data->physaddr); 1803 } 1804 splx(s); 1805 1806 #ifdef UHCI_DEBUG 1807 if (uhcidebug > 10) { 1808 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1809 uhci_dump_tds(data); 1810 uhci_dump_qh(upipe->u.intr.qhs[0]); 1811 } 1812 #endif 1813 1814 return (USBD_IN_PROGRESS); 1815 } 1816 1817 /* Abort a device control request. */ 1818 void 1819 uhci_device_ctrl_abort(xfer) 1820 usbd_xfer_handle xfer; 1821 { 1822 DPRINTF(("uhci_device_ctrl_abort:\n")); 1823 uhci_abort_xfer(xfer, USBD_CANCELLED); 1824 } 1825 1826 /* Close a device control pipe. */ 1827 void 1828 uhci_device_ctrl_close(pipe) 1829 usbd_pipe_handle pipe; 1830 { 1831 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1832 1833 uhci_free_intr_info(upipe->iinfo); 1834 /* XXX free other resources? */ 1835 } 1836 1837 /* Abort a device interrupt request. */ 1838 void 1839 uhci_device_intr_abort(xfer) 1840 usbd_xfer_handle xfer; 1841 { 1842 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1843 if (xfer->pipe->intrxfer == xfer) { 1844 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1845 xfer->pipe->intrxfer = 0; 1846 } 1847 uhci_abort_xfer(xfer, USBD_CANCELLED); 1848 } 1849 1850 /* Close a device interrupt pipe. */ 1851 void 1852 uhci_device_intr_close(pipe) 1853 usbd_pipe_handle pipe; 1854 { 1855 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1856 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1857 int i, s, npoll; 1858 1859 upipe->iinfo->stdstart = 0; /* inactive */ 1860 1861 /* Unlink descriptors from controller data structures. */ 1862 npoll = upipe->u.intr.npoll; 1863 uhci_lock_frames(sc); 1864 for (i = 0; i < npoll; i++) 1865 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1866 upipe->u.intr.qhs[i]); 1867 uhci_unlock_frames(sc); 1868 1869 /* 1870 * We now have to wait for any activity on the physical 1871 * descriptors to stop. 1872 */ 1873 usb_delay_ms(&sc->sc_bus, 2); 1874 1875 for(i = 0; i < npoll; i++) 1876 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1877 free(upipe->u.intr.qhs, M_USBHC); 1878 1879 s = splusb(); 1880 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1881 splx(s); 1882 uhci_free_intr_info(upipe->iinfo); 1883 1884 /* XXX free other resources */ 1885 } 1886 1887 usbd_status 1888 uhci_device_request(xfer) 1889 usbd_xfer_handle xfer; 1890 { 1891 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1892 usb_device_request_t *req = &xfer->request; 1893 usbd_device_handle dev = upipe->pipe.device; 1894 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1895 int addr = dev->address; 1896 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1897 uhci_intr_info_t *ii = upipe->iinfo; 1898 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1899 uhci_soft_qh_t *sqh; 1900 int len; 1901 u_int32_t ls; 1902 usbd_status err; 1903 int isread; 1904 int s; 1905 1906 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1907 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1908 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1909 UGETW(req->wIndex), UGETW(req->wLength), 1910 addr, endpt)); 1911 1912 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1913 isread = req->bmRequestType & UT_READ; 1914 len = UGETW(req->wLength); 1915 1916 setup = upipe->u.ctl.setup; 1917 stat = upipe->u.ctl.stat; 1918 sqh = upipe->u.ctl.sqh; 1919 1920 /* Set up data transaction */ 1921 if (len != 0) { 1922 upipe->nexttoggle = 1; 1923 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1924 &xfer->dmabuf, &data, &dataend); 1925 if (err) 1926 return (err); 1927 next = data; 1928 dataend->link.std = stat; 1929 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1930 } else { 1931 next = stat; 1932 } 1933 upipe->u.ctl.length = len; 1934 1935 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1936 1937 setup->link.std = next; 1938 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1939 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1940 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1941 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1942 1943 stat->link.std = 0; 1944 stat->td.td_link = LE(UHCI_PTR_T); 1945 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1946 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1947 stat->td.td_token = 1948 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1949 UHCI_TD_IN (0, endpt, addr, 1)); 1950 stat->td.td_buffer = LE(0); 1951 1952 #ifdef UHCI_DEBUG 1953 if (uhcidebug > 10) { 1954 DPRINTF(("uhci_device_request: before transfer\n")); 1955 uhci_dump_tds(setup); 1956 } 1957 #endif 1958 1959 /* Set up interrupt info. */ 1960 ii->xfer = xfer; 1961 ii->stdstart = setup; 1962 ii->stdend = stat; 1963 #if defined(__FreeBSD__) 1964 callout_handle_init(&ii->timeout_handle); 1965 #endif 1966 #ifdef DIAGNOSTIC 1967 if (!ii->isdone) { 1968 printf("uhci_device_request: not done, ii=%p\n", ii); 1969 } 1970 ii->isdone = 0; 1971 #endif 1972 1973 sqh->elink = setup; 1974 sqh->qh.qh_elink = LE(setup->physaddr); 1975 sqh->intr_info = ii; 1976 1977 s = splusb(); 1978 uhci_add_ctrl(sc, sqh); 1979 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1980 #ifdef UHCI_DEBUG 1981 if (uhcidebug > 12) { 1982 uhci_soft_td_t *std; 1983 uhci_soft_qh_t *xqh; 1984 uhci_soft_qh_t *sxqh; 1985 int maxqh = 0; 1986 uhci_physaddr_t link; 1987 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1988 for (std = sc->sc_vframes[0].htd, link = 0; 1989 (link & UHCI_PTR_Q) == 0; 1990 std = std->link.std) { 1991 link = LE(std->td.td_link); 1992 uhci_dump_td(std); 1993 } 1994 sxqh = (uhci_soft_qh_t *)std; 1995 uhci_dump_qh(sxqh); 1996 for (xqh = sxqh; 1997 xqh != NULL; 1998 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1999 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2000 uhci_dump_qh(xqh); 2001 } 2002 DPRINTF(("Enqueued QH:\n")); 2003 uhci_dump_qh(sqh); 2004 uhci_dump_tds(sqh->elink); 2005 } 2006 #endif 2007 if (xfer->timeout && !sc->sc_bus.use_polling) { 2008 usb_timeout(uhci_timeout, ii, 2009 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2010 } 2011 splx(s); 2012 2013 return (USBD_NORMAL_COMPLETION); 2014 } 2015 2016 usbd_status 2017 uhci_device_isoc_transfer(xfer) 2018 usbd_xfer_handle xfer; 2019 { 2020 usbd_status err; 2021 2022 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2023 2024 /* Put it on our queue, */ 2025 err = usb_insert_transfer(xfer); 2026 2027 /* bail out on error, */ 2028 if (err && err != USBD_IN_PROGRESS) 2029 return (err); 2030 2031 /* XXX should check inuse here */ 2032 2033 /* insert into schedule, */ 2034 uhci_device_isoc_enter(xfer); 2035 2036 /* and put on interrupt list if the pipe wasn't running */ 2037 if (!err) 2038 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2039 2040 return (err); 2041 } 2042 2043 void 2044 uhci_device_isoc_enter(xfer) 2045 usbd_xfer_handle xfer; 2046 { 2047 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2048 usbd_device_handle dev = upipe->pipe.device; 2049 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2050 struct iso *iso = &upipe->u.iso; 2051 uhci_soft_td_t *std; 2052 u_int32_t buf, len, status; 2053 int s, i, next, nframes; 2054 2055 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2056 "nframes=%d\n", 2057 iso->inuse, iso->next, xfer, xfer->nframes)); 2058 2059 if (xfer->status == USBD_IN_PROGRESS) { 2060 /* This request has already been entered into the frame list */ 2061 /* XXX */ 2062 } 2063 2064 #ifdef DIAGNOSTIC 2065 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2066 printf("uhci_device_isoc_enter: overflow!\n"); 2067 #endif 2068 2069 next = iso->next; 2070 if (next == -1) { 2071 /* Not in use yet, schedule it a few frames ahead. */ 2072 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2073 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2074 } 2075 2076 xfer->status = USBD_IN_PROGRESS; 2077 xfer->hcprivint = next; 2078 2079 buf = DMAADDR(&xfer->dmabuf); 2080 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2081 UHCI_TD_ACTIVE | 2082 UHCI_TD_IOS)); 2083 nframes = xfer->nframes; 2084 s = splusb(); 2085 for (i = 0; i < nframes; i++) { 2086 std = iso->stds[next]; 2087 if (++next >= UHCI_VFRAMELIST_COUNT) 2088 next = 0; 2089 len = xfer->frlengths[i]; 2090 std->td.td_buffer = LE(buf); 2091 if (i == nframes - 1) 2092 status |= LE(UHCI_TD_IOC); 2093 std->td.td_status = status; 2094 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2095 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2096 #ifdef UHCI_DEBUG 2097 if (uhcidebug > 5) { 2098 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2099 uhci_dump_td(std); 2100 } 2101 #endif 2102 buf += len; 2103 } 2104 iso->next = next; 2105 iso->inuse += xfer->nframes; 2106 2107 splx(s); 2108 } 2109 2110 usbd_status 2111 uhci_device_isoc_start(xfer) 2112 usbd_xfer_handle xfer; 2113 { 2114 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2115 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2116 uhci_intr_info_t *ii = upipe->iinfo; 2117 uhci_soft_td_t *end; 2118 int s, i; 2119 2120 #ifdef DIAGNOSTIC 2121 if (xfer->status != USBD_IN_PROGRESS) 2122 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2123 #endif 2124 2125 /* Find the last TD */ 2126 i = xfer->hcprivint + xfer->nframes; 2127 if (i >= UHCI_VFRAMELIST_COUNT) 2128 i -= UHCI_VFRAMELIST_COUNT; 2129 end = upipe->u.iso.stds[i]; 2130 2131 s = splusb(); 2132 2133 /* Set up interrupt info. */ 2134 ii->xfer = xfer; 2135 ii->stdstart = end; 2136 ii->stdend = end; 2137 #if defined(__FreeBSD__) 2138 callout_handle_init(&ii->timeout_handle); 2139 #endif 2140 #ifdef DIAGNOSTIC 2141 if (!ii->isdone) { 2142 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2143 } 2144 ii->isdone = 0; 2145 #endif 2146 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2147 2148 splx(s); 2149 2150 return (USBD_IN_PROGRESS); 2151 } 2152 2153 void 2154 uhci_device_isoc_abort(xfer) 2155 usbd_xfer_handle xfer; 2156 { 2157 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2158 uhci_intr_info_t *ii = upipe->iinfo; 2159 uhci_soft_td_t **stds = upipe->u.iso.stds; 2160 uhci_soft_td_t *std; 2161 int i, n, nframes; 2162 2163 /* Make interrupt routine ignore it, */ 2164 xfer->status = USBD_CANCELLED; 2165 2166 /* make hardware ignore it, */ 2167 nframes = xfer->nframes; 2168 n = xfer->hcprivint; 2169 for (i = 0; i < nframes; i++) { 2170 std = stds[n]; 2171 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2172 if (++n >= UHCI_VFRAMELIST_COUNT) 2173 n = 0; 2174 } 2175 2176 xfer->hcpriv = ii; 2177 2178 /* make sure hardware has completed, */ 2179 if (xfer->device->bus->intr_context) { 2180 /* We have no process context, so we can't use tsleep(). */ 2181 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2182 } else { 2183 usb_delay_ms(xfer->pipe->device->bus, 1); 2184 /* and call final part of interrupt handler. */ 2185 uhci_abort_xfer_end(xfer); 2186 } 2187 } 2188 2189 void 2190 uhci_device_isoc_close(pipe) 2191 usbd_pipe_handle pipe; 2192 { 2193 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2194 usbd_device_handle dev = upipe->pipe.device; 2195 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2196 uhci_soft_td_t *std, *vstd; 2197 struct iso *iso; 2198 int i; 2199 2200 /* 2201 * Make sure all TDs are marked as inactive. 2202 * Wait for completion. 2203 * Unschedule. 2204 * Deallocate. 2205 */ 2206 iso = &upipe->u.iso; 2207 2208 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2209 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2210 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2211 2212 uhci_lock_frames(sc); 2213 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2214 std = iso->stds[i]; 2215 for (vstd = sc->sc_vframes[i].htd; 2216 vstd != NULL && vstd->link.std != std; 2217 vstd = vstd->link.std) 2218 ; 2219 if (vstd == NULL) { 2220 /*panic*/ 2221 printf("uhci_device_isoc_close: %p not found\n", std); 2222 uhci_unlock_frames(sc); 2223 return; 2224 } 2225 vstd->link = std->link; 2226 vstd->td.td_link = std->td.td_link; 2227 uhci_free_std(sc, std); 2228 } 2229 uhci_unlock_frames(sc); 2230 2231 free(iso->stds, M_USBHC); 2232 } 2233 2234 usbd_status 2235 uhci_setup_isoc(pipe) 2236 usbd_pipe_handle pipe; 2237 { 2238 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2239 usbd_device_handle dev = upipe->pipe.device; 2240 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2241 int addr = upipe->pipe.device->address; 2242 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2243 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2244 uhci_soft_td_t *std, *vstd; 2245 u_int32_t token; 2246 struct iso *iso; 2247 int i; 2248 2249 iso = &upipe->u.iso; 2250 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2251 M_USBHC, M_WAITOK); 2252 2253 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2254 UHCI_TD_OUT(0, endpt, addr, 0)); 2255 2256 /* Allocate the TDs and mark as inactive; */ 2257 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2258 std = uhci_alloc_std(sc); 2259 if (std == 0) 2260 goto bad; 2261 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2262 std->td.td_token = token; 2263 iso->stds[i] = std; 2264 } 2265 2266 /* Insert TDs into schedule. */ 2267 uhci_lock_frames(sc); 2268 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2269 std = iso->stds[i]; 2270 vstd = sc->sc_vframes[i].htd; 2271 std->link = vstd->link; 2272 std->td.td_link = vstd->td.td_link; 2273 vstd->link.std = std; 2274 vstd->td.td_link = LE(std->physaddr); 2275 } 2276 uhci_unlock_frames(sc); 2277 2278 iso->next = -1; 2279 iso->inuse = 0; 2280 2281 return (USBD_NORMAL_COMPLETION); 2282 2283 bad: 2284 while (--i >= 0) 2285 uhci_free_std(sc, iso->stds[i]); 2286 free(iso->stds, M_USBHC); 2287 return (USBD_NOMEM); 2288 } 2289 2290 void 2291 uhci_device_isoc_done(xfer) 2292 usbd_xfer_handle xfer; 2293 { 2294 uhci_intr_info_t *ii = xfer->hcpriv; 2295 2296 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2297 2298 /* Turn off the interrupt since it is active even if the TD is not. */ 2299 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2300 2301 LIST_REMOVE(ii, list); /* remove from active list */ 2302 } 2303 2304 void 2305 uhci_device_intr_done(xfer) 2306 usbd_xfer_handle xfer; 2307 { 2308 uhci_intr_info_t *ii = xfer->hcpriv; 2309 uhci_softc_t *sc = ii->sc; 2310 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2311 uhci_soft_qh_t *sqh; 2312 int i, npoll; 2313 2314 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2315 2316 npoll = upipe->u.intr.npoll; 2317 for(i = 0; i < npoll; i++) { 2318 sqh = upipe->u.intr.qhs[i]; 2319 sqh->elink = 0; 2320 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2321 } 2322 uhci_free_std_chain(sc, ii->stdstart, 0); 2323 2324 /* XXX Wasteful. */ 2325 if (xfer->pipe->repeat) { 2326 uhci_soft_td_t *data, *dataend; 2327 2328 /* This alloc cannot fail since we freed the chain above. */ 2329 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2330 &xfer->dmabuf, &data, &dataend); 2331 dataend->td.td_status |= LE(UHCI_TD_IOC); 2332 2333 #ifdef UHCI_DEBUG 2334 if (uhcidebug > 10) { 2335 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2336 uhci_dump_tds(data); 2337 uhci_dump_qh(upipe->u.intr.qhs[0]); 2338 } 2339 #endif 2340 2341 ii->stdstart = data; 2342 ii->stdend = dataend; 2343 #if defined(__FreeBSD__) 2344 callout_handle_init(&ii->timeout_handle); 2345 #endif 2346 #ifdef DIAGNOSTIC 2347 if (!ii->isdone) { 2348 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2349 } 2350 ii->isdone = 0; 2351 #endif 2352 for (i = 0; i < npoll; i++) { 2353 sqh = upipe->u.intr.qhs[i]; 2354 sqh->elink = data; 2355 sqh->qh.qh_elink = LE(data->physaddr); 2356 } 2357 } else { 2358 ii->stdstart = 0; /* mark as inactive */ 2359 } 2360 } 2361 2362 /* Deallocate request data structures */ 2363 void 2364 uhci_device_ctrl_done(xfer) 2365 usbd_xfer_handle xfer; 2366 { 2367 uhci_intr_info_t *ii = xfer->hcpriv; 2368 uhci_softc_t *sc = ii->sc; 2369 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2370 2371 #ifdef DIAGNOSTIC 2372 if (!(xfer->rqflags & URQ_REQUEST)) 2373 panic("uhci_ctrl_done: not a request\n"); 2374 #endif 2375 2376 LIST_REMOVE(ii, list); /* remove from active list */ 2377 2378 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2379 2380 if (upipe->u.ctl.length != 0) 2381 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2382 2383 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2384 } 2385 2386 /* Deallocate request data structures */ 2387 void 2388 uhci_device_bulk_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 LIST_REMOVE(ii, list); /* remove from active list */ 2396 2397 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2398 2399 uhci_free_std_chain(sc, ii->stdstart, 0); 2400 2401 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2402 } 2403 2404 /* Add interrupt QH, called with vflock. */ 2405 void 2406 uhci_add_intr(sc, n, sqh) 2407 uhci_softc_t *sc; 2408 int n; 2409 uhci_soft_qh_t *sqh; 2410 { 2411 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2412 uhci_soft_qh_t *eqh; 2413 2414 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2415 eqh = vf->eqh; 2416 sqh->hlink = eqh->hlink; 2417 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2418 eqh->hlink = sqh; 2419 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2420 vf->eqh = sqh; 2421 vf->bandwidth++; 2422 } 2423 2424 /* Remove interrupt QH, called with vflock. */ 2425 void 2426 uhci_remove_intr(sc, n, sqh) 2427 uhci_softc_t *sc; 2428 int n; 2429 uhci_soft_qh_t *sqh; 2430 { 2431 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2432 uhci_soft_qh_t *pqh; 2433 2434 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2435 2436 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2437 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2438 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2439 DPRINTF(("uhci_remove_intr: QH not found\n")); 2440 return; 2441 } 2442 #else 2443 ; 2444 #endif 2445 pqh->hlink = sqh->hlink; 2446 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2447 if (vf->eqh == sqh) 2448 vf->eqh = pqh; 2449 vf->bandwidth--; 2450 } 2451 2452 usbd_status 2453 uhci_device_setintr(sc, upipe, ival) 2454 uhci_softc_t *sc; 2455 struct uhci_pipe *upipe; 2456 int ival; 2457 { 2458 uhci_soft_qh_t *sqh; 2459 int i, npoll, s; 2460 u_int bestbw, bw, bestoffs, offs; 2461 2462 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2463 if (ival == 0) { 2464 printf("uhci_setintr: 0 interval\n"); 2465 return (USBD_INVAL); 2466 } 2467 2468 if (ival > UHCI_VFRAMELIST_COUNT) 2469 ival = UHCI_VFRAMELIST_COUNT; 2470 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2471 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2472 2473 upipe->u.intr.npoll = npoll; 2474 upipe->u.intr.qhs = 2475 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2476 2477 /* 2478 * Figure out which offset in the schedule that has most 2479 * bandwidth left over. 2480 */ 2481 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2482 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2483 for (bw = i = 0; i < npoll; i++) 2484 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2485 if (bw < bestbw) { 2486 bestbw = bw; 2487 bestoffs = offs; 2488 } 2489 } 2490 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2491 2492 upipe->iinfo->stdstart = 0; 2493 for(i = 0; i < npoll; i++) { 2494 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2495 sqh->elink = 0; 2496 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2497 sqh->pos = MOD(i * ival + bestoffs); 2498 sqh->intr_info = upipe->iinfo; 2499 } 2500 #undef MOD 2501 2502 s = splusb(); 2503 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2504 splx(s); 2505 2506 uhci_lock_frames(sc); 2507 /* Enter QHs into the controller data structures. */ 2508 for(i = 0; i < npoll; i++) 2509 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2510 upipe->u.intr.qhs[i]); 2511 uhci_unlock_frames(sc); 2512 2513 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2514 return (USBD_NORMAL_COMPLETION); 2515 } 2516 2517 /* Open a new pipe. */ 2518 usbd_status 2519 uhci_open(pipe) 2520 usbd_pipe_handle pipe; 2521 { 2522 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2523 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2524 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2525 usbd_status err; 2526 int ival; 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 ival = pipe->interval; 2576 if (ival == USBD_DEFAULT_INTERVAL) 2577 ival = ed->bInterval; 2578 return (ohci_device_setintr(sc, opipe, ival)); 2579 case UE_ISOCHRONOUS: 2580 pipe->methods = &uhci_device_isoc_methods; 2581 return (uhci_setup_isoc(pipe)); 2582 case UE_BULK: 2583 pipe->methods = &uhci_device_bulk_methods; 2584 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2585 if (upipe->u.bulk.sqh == NULL) 2586 goto bad; 2587 break; 2588 } 2589 } 2590 return (USBD_NORMAL_COMPLETION); 2591 2592 bad: 2593 uhci_free_intr_info(upipe->iinfo); 2594 return (USBD_NOMEM); 2595 } 2596 2597 /* 2598 * Data structures and routines to emulate the root hub. 2599 */ 2600 usb_device_descriptor_t uhci_devd = { 2601 USB_DEVICE_DESCRIPTOR_SIZE, 2602 UDESC_DEVICE, /* type */ 2603 {0x00, 0x01}, /* USB version */ 2604 UCLASS_HUB, /* class */ 2605 USUBCLASS_HUB, /* subclass */ 2606 0, /* protocol */ 2607 64, /* max packet */ 2608 {0},{0},{0x00,0x01}, /* device id */ 2609 1,2,0, /* string indicies */ 2610 1 /* # of configurations */ 2611 }; 2612 2613 usb_config_descriptor_t uhci_confd = { 2614 USB_CONFIG_DESCRIPTOR_SIZE, 2615 UDESC_CONFIG, 2616 {USB_CONFIG_DESCRIPTOR_SIZE + 2617 USB_INTERFACE_DESCRIPTOR_SIZE + 2618 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2619 1, 2620 1, 2621 0, 2622 UC_SELF_POWERED, 2623 0 /* max power */ 2624 }; 2625 2626 usb_interface_descriptor_t uhci_ifcd = { 2627 USB_INTERFACE_DESCRIPTOR_SIZE, 2628 UDESC_INTERFACE, 2629 0, 2630 0, 2631 1, 2632 UCLASS_HUB, 2633 USUBCLASS_HUB, 2634 0, 2635 0 2636 }; 2637 2638 usb_endpoint_descriptor_t uhci_endpd = { 2639 USB_ENDPOINT_DESCRIPTOR_SIZE, 2640 UDESC_ENDPOINT, 2641 UE_DIR_IN | UHCI_INTR_ENDPT, 2642 UE_INTERRUPT, 2643 {8}, 2644 255 2645 }; 2646 2647 usb_hub_descriptor_t uhci_hubd_piix = { 2648 USB_HUB_DESCRIPTOR_SIZE, 2649 UDESC_HUB, 2650 2, 2651 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2652 50, /* power on to power good */ 2653 0, 2654 { 0x00 }, /* both ports are removable */ 2655 }; 2656 2657 int 2658 uhci_str(p, l, s) 2659 usb_string_descriptor_t *p; 2660 int l; 2661 char *s; 2662 { 2663 int i; 2664 2665 if (l == 0) 2666 return (0); 2667 p->bLength = 2 * strlen(s) + 2; 2668 if (l == 1) 2669 return (1); 2670 p->bDescriptorType = UDESC_STRING; 2671 l -= 2; 2672 for (i = 0; s[i] && l > 1; i++, l -= 2) 2673 USETW2(p->bString[i], 0, s[i]); 2674 return (2*i+2); 2675 } 2676 2677 /* 2678 * Simulate a hardware hub by handling all the necessary requests. 2679 */ 2680 usbd_status 2681 uhci_root_ctrl_transfer(xfer) 2682 usbd_xfer_handle xfer; 2683 { 2684 usbd_status err; 2685 2686 /* Insert last in queue. */ 2687 err = usb_insert_transfer(xfer); 2688 if (err) 2689 return (err); 2690 2691 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2692 * start first 2693 */ 2694 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2695 } 2696 2697 usbd_status 2698 uhci_root_ctrl_start(xfer) 2699 usbd_xfer_handle xfer; 2700 { 2701 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2702 usb_device_request_t *req; 2703 void *buf = NULL; 2704 int port, x; 2705 int s, len, value, index, status, change, l, totlen = 0; 2706 usb_port_status_t ps; 2707 usbd_status err; 2708 2709 #ifdef DIAGNOSTIC 2710 if (!(xfer->rqflags & URQ_REQUEST)) 2711 panic("uhci_root_ctrl_transfer: not a request\n"); 2712 #endif 2713 req = &xfer->request; 2714 2715 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2716 req->bmRequestType, req->bRequest)); 2717 2718 len = UGETW(req->wLength); 2719 value = UGETW(req->wValue); 2720 index = UGETW(req->wIndex); 2721 2722 if (len != 0) 2723 buf = KERNADDR(&xfer->dmabuf); 2724 2725 #define C(x,y) ((x) | ((y) << 8)) 2726 switch(C(req->bRequest, req->bmRequestType)) { 2727 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2728 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2729 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2730 /* 2731 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2732 * for the integrated root hub. 2733 */ 2734 break; 2735 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2736 if (len > 0) { 2737 *(u_int8_t *)buf = sc->sc_conf; 2738 totlen = 1; 2739 } 2740 break; 2741 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2742 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2743 switch(value >> 8) { 2744 case UDESC_DEVICE: 2745 if ((value & 0xff) != 0) { 2746 err = USBD_IOERROR; 2747 goto ret; 2748 } 2749 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2750 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2751 memcpy(buf, &uhci_devd, l); 2752 break; 2753 case UDESC_CONFIG: 2754 if ((value & 0xff) != 0) { 2755 err = USBD_IOERROR; 2756 goto ret; 2757 } 2758 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2759 memcpy(buf, &uhci_confd, l); 2760 buf = (char *)buf + l; 2761 len -= l; 2762 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2763 totlen += l; 2764 memcpy(buf, &uhci_ifcd, l); 2765 buf = (char *)buf + l; 2766 len -= l; 2767 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2768 totlen += l; 2769 memcpy(buf, &uhci_endpd, l); 2770 break; 2771 case UDESC_STRING: 2772 if (len == 0) 2773 break; 2774 *(u_int8_t *)buf = 0; 2775 totlen = 1; 2776 switch (value & 0xff) { 2777 case 1: /* Vendor */ 2778 totlen = uhci_str(buf, len, sc->sc_vendor); 2779 break; 2780 case 2: /* Product */ 2781 totlen = uhci_str(buf, len, "UHCI root hub"); 2782 break; 2783 } 2784 break; 2785 default: 2786 err = USBD_IOERROR; 2787 goto ret; 2788 } 2789 break; 2790 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2791 if (len > 0) { 2792 *(u_int8_t *)buf = 0; 2793 totlen = 1; 2794 } 2795 break; 2796 case C(UR_GET_STATUS, UT_READ_DEVICE): 2797 if (len > 1) { 2798 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2799 totlen = 2; 2800 } 2801 break; 2802 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2803 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2804 if (len > 1) { 2805 USETW(((usb_status_t *)buf)->wStatus, 0); 2806 totlen = 2; 2807 } 2808 break; 2809 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2810 if (value >= USB_MAX_DEVICES) { 2811 err = USBD_IOERROR; 2812 goto ret; 2813 } 2814 sc->sc_addr = value; 2815 break; 2816 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2817 if (value != 0 && value != 1) { 2818 err = USBD_IOERROR; 2819 goto ret; 2820 } 2821 sc->sc_conf = value; 2822 break; 2823 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2824 break; 2825 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2826 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2827 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2828 err = USBD_IOERROR; 2829 goto ret; 2830 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2831 break; 2832 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2833 break; 2834 /* Hub requests */ 2835 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2836 break; 2837 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2838 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2839 "port=%d feature=%d\n", 2840 index, value)); 2841 if (index == 1) 2842 port = UHCI_PORTSC1; 2843 else if (index == 2) 2844 port = UHCI_PORTSC2; 2845 else { 2846 err = USBD_IOERROR; 2847 goto ret; 2848 } 2849 switch(value) { 2850 case UHF_PORT_ENABLE: 2851 x = UREAD2(sc, port); 2852 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2853 break; 2854 case UHF_PORT_SUSPEND: 2855 x = UREAD2(sc, port); 2856 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2857 break; 2858 case UHF_PORT_RESET: 2859 x = UREAD2(sc, port); 2860 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2861 break; 2862 case UHF_C_PORT_CONNECTION: 2863 x = UREAD2(sc, port); 2864 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2865 break; 2866 case UHF_C_PORT_ENABLE: 2867 x = UREAD2(sc, port); 2868 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2869 break; 2870 case UHF_C_PORT_OVER_CURRENT: 2871 x = UREAD2(sc, port); 2872 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2873 break; 2874 case UHF_C_PORT_RESET: 2875 sc->sc_isreset = 0; 2876 err = USBD_NORMAL_COMPLETION; 2877 goto ret; 2878 case UHF_PORT_CONNECTION: 2879 case UHF_PORT_OVER_CURRENT: 2880 case UHF_PORT_POWER: 2881 case UHF_PORT_LOW_SPEED: 2882 case UHF_C_PORT_SUSPEND: 2883 default: 2884 err = USBD_IOERROR; 2885 goto ret; 2886 } 2887 break; 2888 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2889 if (index == 1) 2890 port = UHCI_PORTSC1; 2891 else if (index == 2) 2892 port = UHCI_PORTSC2; 2893 else { 2894 err = USBD_IOERROR; 2895 goto ret; 2896 } 2897 if (len > 0) { 2898 *(u_int8_t *)buf = 2899 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2900 UHCI_PORTSC_LS_SHIFT; 2901 totlen = 1; 2902 } 2903 break; 2904 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2905 if (value != 0) { 2906 err = USBD_IOERROR; 2907 goto ret; 2908 } 2909 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2910 totlen = l; 2911 memcpy(buf, &uhci_hubd_piix, l); 2912 break; 2913 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2914 if (len != 4) { 2915 err = USBD_IOERROR; 2916 goto ret; 2917 } 2918 memset(buf, 0, len); 2919 totlen = len; 2920 break; 2921 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2922 if (index == 1) 2923 port = UHCI_PORTSC1; 2924 else if (index == 2) 2925 port = UHCI_PORTSC2; 2926 else { 2927 err = USBD_IOERROR; 2928 goto ret; 2929 } 2930 if (len != 4) { 2931 err = USBD_IOERROR; 2932 goto ret; 2933 } 2934 x = UREAD2(sc, port); 2935 status = change = 0; 2936 if (x & UHCI_PORTSC_CCS ) 2937 status |= UPS_CURRENT_CONNECT_STATUS; 2938 if (x & UHCI_PORTSC_CSC ) 2939 change |= UPS_C_CONNECT_STATUS; 2940 if (x & UHCI_PORTSC_PE ) 2941 status |= UPS_PORT_ENABLED; 2942 if (x & UHCI_PORTSC_POEDC) 2943 change |= UPS_C_PORT_ENABLED; 2944 if (x & UHCI_PORTSC_OCI ) 2945 status |= UPS_OVERCURRENT_INDICATOR; 2946 if (x & UHCI_PORTSC_OCIC ) 2947 change |= UPS_C_OVERCURRENT_INDICATOR; 2948 if (x & UHCI_PORTSC_SUSP ) 2949 status |= UPS_SUSPEND; 2950 if (x & UHCI_PORTSC_LSDA ) 2951 status |= UPS_LOW_SPEED; 2952 status |= UPS_PORT_POWER; 2953 if (sc->sc_isreset) 2954 change |= UPS_C_PORT_RESET; 2955 USETW(ps.wPortStatus, status); 2956 USETW(ps.wPortChange, change); 2957 l = min(len, sizeof ps); 2958 memcpy(buf, &ps, l); 2959 totlen = l; 2960 break; 2961 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2962 err = USBD_IOERROR; 2963 goto ret; 2964 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2965 break; 2966 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2967 if (index == 1) 2968 port = UHCI_PORTSC1; 2969 else if (index == 2) 2970 port = UHCI_PORTSC2; 2971 else { 2972 err = USBD_IOERROR; 2973 goto ret; 2974 } 2975 switch(value) { 2976 case UHF_PORT_ENABLE: 2977 x = UREAD2(sc, port); 2978 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2979 break; 2980 case UHF_PORT_SUSPEND: 2981 x = UREAD2(sc, port); 2982 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2983 break; 2984 case UHF_PORT_RESET: 2985 x = UREAD2(sc, port); 2986 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2987 usb_delay_ms(&sc->sc_bus, 10); 2988 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2989 delay(100); 2990 x = UREAD2(sc, port); 2991 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2992 delay(100); 2993 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2994 index, UREAD2(sc, port))); 2995 sc->sc_isreset = 1; 2996 break; 2997 case UHF_C_PORT_CONNECTION: 2998 case UHF_C_PORT_ENABLE: 2999 case UHF_C_PORT_OVER_CURRENT: 3000 case UHF_PORT_CONNECTION: 3001 case UHF_PORT_OVER_CURRENT: 3002 case UHF_PORT_POWER: 3003 case UHF_PORT_LOW_SPEED: 3004 case UHF_C_PORT_SUSPEND: 3005 case UHF_C_PORT_RESET: 3006 default: 3007 err = USBD_IOERROR; 3008 goto ret; 3009 } 3010 break; 3011 default: 3012 err = USBD_IOERROR; 3013 goto ret; 3014 } 3015 xfer->actlen = totlen; 3016 err = USBD_NORMAL_COMPLETION; 3017 ret: 3018 xfer->status = err; 3019 xfer->hcpriv = 0; 3020 s = splusb(); 3021 usb_transfer_complete(xfer); 3022 splx(s); 3023 return (USBD_IN_PROGRESS); 3024 } 3025 3026 /* Abort a root control request. */ 3027 void 3028 uhci_root_ctrl_abort(xfer) 3029 usbd_xfer_handle xfer; 3030 { 3031 /* Nothing to do, all transfers are synchronous. */ 3032 } 3033 3034 /* Close the root pipe. */ 3035 void 3036 uhci_root_ctrl_close(pipe) 3037 usbd_pipe_handle pipe; 3038 { 3039 DPRINTF(("uhci_root_ctrl_close\n")); 3040 } 3041 3042 /* Abort a root interrupt request. */ 3043 void 3044 uhci_root_intr_abort(xfer) 3045 usbd_xfer_handle xfer; 3046 { 3047 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3048 3049 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3050 sc->sc_has_timo = NULL; 3051 3052 if (xfer->pipe->intrxfer == xfer) { 3053 DPRINTF(("uhci_root_intr_abort: remove\n")); 3054 xfer->pipe->intrxfer = 0; 3055 } 3056 xfer->status = USBD_CANCELLED; 3057 usb_transfer_complete(xfer); 3058 } 3059 3060 usbd_status 3061 uhci_root_intr_transfer(xfer) 3062 usbd_xfer_handle xfer; 3063 { 3064 usbd_status err; 3065 3066 /* Insert last in queue. */ 3067 err = usb_insert_transfer(xfer); 3068 if (err) 3069 return (err); 3070 3071 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3072 * start first 3073 */ 3074 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3075 } 3076 3077 /* Start a transfer on the root interrupt pipe */ 3078 usbd_status 3079 uhci_root_intr_start(xfer) 3080 usbd_xfer_handle xfer; 3081 { 3082 usbd_pipe_handle pipe = xfer->pipe; 3083 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3084 3085 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3086 xfer, xfer->length, xfer->flags)); 3087 3088 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3089 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3090 sc->sc_has_timo = xfer; 3091 return (USBD_IN_PROGRESS); 3092 } 3093 3094 /* Close the root interrupt pipe. */ 3095 void 3096 uhci_root_intr_close(pipe) 3097 usbd_pipe_handle pipe; 3098 { 3099 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3100 3101 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3102 sc->sc_has_timo = NULL; 3103 DPRINTF(("uhci_root_intr_close\n")); 3104 } 3105
Indexes created Tue Sep 30 20:09:53 GMT 2025