uhci.c revision 1.84
1 /* $NetBSD: uhci.c,v 1.84 2000/01/28 00:44:27 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 static void uhci_root_ctrl_done __P((usbd_xfer_handle)); 230 231 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 232 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 233 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 234 static void uhci_root_intr_close __P((usbd_pipe_handle)); 235 static void uhci_root_intr_done __P((usbd_xfer_handle)); 236 237 static usbd_status uhci_open __P((usbd_pipe_handle)); 238 static void uhci_poll __P((struct usbd_bus *)); 239 240 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 241 242 static void uhci_add_intr __P((uhci_softc_t *, int, 243 uhci_soft_qh_t *)); 244 static void uhci_remove_intr __P((uhci_softc_t *, int, 245 uhci_soft_qh_t *)); 246 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 247 struct uhci_pipe *pipe, int ival)); 248 249 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 250 static void uhci_noop __P((usbd_pipe_handle pipe)); 251 252 #ifdef UHCI_DEBUG 253 static void uhci_dumpregs __P((uhci_softc_t *)); 254 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 255 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 256 static void uhci_dump_tds __P((uhci_soft_td_t *)); 257 static void uhci_dump_td __P((uhci_soft_td_t *)); 258 #endif 259 260 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 261 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 262 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 263 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 264 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 265 266 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 267 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 268 269 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 270 271 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 272 273 #define UHCI_INTR_ENDPT 1 274 275 struct usbd_bus_methods uhci_bus_methods = { 276 uhci_open, 277 uhci_poll, 278 uhci_allocm, 279 uhci_freem, 280 uhci_allocx, 281 uhci_freex, 282 }; 283 284 struct usbd_pipe_methods uhci_root_ctrl_methods = { 285 uhci_root_ctrl_transfer, 286 uhci_root_ctrl_start, 287 uhci_root_ctrl_abort, 288 uhci_root_ctrl_close, 289 uhci_noop, 290 uhci_root_ctrl_done, 291 }; 292 293 struct usbd_pipe_methods uhci_root_intr_methods = { 294 uhci_root_intr_transfer, 295 uhci_root_intr_start, 296 uhci_root_intr_abort, 297 uhci_root_intr_close, 298 uhci_noop, 299 uhci_root_intr_done, 300 }; 301 302 struct usbd_pipe_methods uhci_device_ctrl_methods = { 303 uhci_device_ctrl_transfer, 304 uhci_device_ctrl_start, 305 uhci_device_ctrl_abort, 306 uhci_device_ctrl_close, 307 uhci_noop, 308 uhci_device_ctrl_done, 309 }; 310 311 struct usbd_pipe_methods uhci_device_intr_methods = { 312 uhci_device_intr_transfer, 313 uhci_device_intr_start, 314 uhci_device_intr_abort, 315 uhci_device_intr_close, 316 uhci_device_clear_toggle, 317 uhci_device_intr_done, 318 }; 319 320 struct usbd_pipe_methods uhci_device_bulk_methods = { 321 uhci_device_bulk_transfer, 322 uhci_device_bulk_start, 323 uhci_device_bulk_abort, 324 uhci_device_bulk_close, 325 uhci_device_clear_toggle, 326 uhci_device_bulk_done, 327 }; 328 329 struct usbd_pipe_methods uhci_device_isoc_methods = { 330 uhci_device_isoc_transfer, 331 uhci_device_isoc_start, 332 uhci_device_isoc_abort, 333 uhci_device_isoc_close, 334 uhci_noop, 335 uhci_device_isoc_done, 336 }; 337 338 void 339 uhci_busreset(sc) 340 uhci_softc_t *sc; 341 { 342 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 343 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 344 UHCICMD(sc, 0); /* do nothing */ 345 } 346 347 usbd_status 348 uhci_init(sc) 349 uhci_softc_t *sc; 350 { 351 usbd_status err; 352 int i, j; 353 uhci_soft_qh_t *csqh, *bsqh, *sqh; 354 uhci_soft_td_t *std; 355 356 DPRINTFN(1,("uhci_init: start\n")); 357 358 #ifdef UHCI_DEBUG 359 if (uhcidebug > 2) 360 uhci_dumpregs(sc); 361 #endif 362 363 uhci_run(sc, 0); /* stop the controller */ 364 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 365 366 uhci_busreset(sc); 367 368 /* Allocate and initialize real frame array. */ 369 err = usb_allocmem(&sc->sc_bus, 370 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 371 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 372 if (err) 373 return (err); 374 sc->sc_pframes = KERNADDR(&sc->sc_dma); 375 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 376 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 377 378 /* Allocate the dummy QH where bulk traffic will be queued. */ 379 bsqh = uhci_alloc_sqh(sc); 380 if (bsqh == NULL) 381 return (USBD_NOMEM); 382 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 383 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 384 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 385 386 /* Allocate the dummy QH where control traffic will be queued. */ 387 csqh = uhci_alloc_sqh(sc); 388 if (csqh == NULL) 389 return (USBD_NOMEM); 390 csqh->hlink = bsqh; 391 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 392 csqh->qh.qh_elink = LE(UHCI_PTR_T); 393 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 394 395 /* 396 * Make all (virtual) frame list pointers point to the interrupt 397 * queue heads and the interrupt queue heads at the control 398 * queue head and point the physical frame list to the virtual. 399 */ 400 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 401 std = uhci_alloc_std(sc); 402 sqh = uhci_alloc_sqh(sc); 403 if (std == NULL || sqh == NULL) 404 return (USBD_NOMEM); 405 std->link.sqh = sqh; 406 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 407 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 408 std->td.td_token = LE(0); 409 std->td.td_buffer = LE(0); 410 sqh->hlink = csqh; 411 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 412 sqh->elink = 0; 413 sqh->qh.qh_elink = LE(UHCI_PTR_T); 414 sc->sc_vframes[i].htd = std; 415 sc->sc_vframes[i].etd = std; 416 sc->sc_vframes[i].hqh = sqh; 417 sc->sc_vframes[i].eqh = sqh; 418 for (j = i; 419 j < UHCI_FRAMELIST_COUNT; 420 j += UHCI_VFRAMELIST_COUNT) 421 sc->sc_pframes[j] = LE(std->physaddr); 422 } 423 424 LIST_INIT(&sc->sc_intrhead); 425 426 SIMPLEQ_INIT(&sc->sc_free_xfers); 427 428 /* Set up the bus struct. */ 429 sc->sc_bus.methods = &uhci_bus_methods; 430 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 431 432 sc->sc_suspend = PWR_RESUME; 433 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 434 435 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 436 437 DPRINTFN(1,("uhci_init: enabling\n")); 438 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 439 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 440 441 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 442 443 return (uhci_run(sc, 1)); /* and here we go... */ 444 } 445 446 #if defined(__NetBSD__) || defined(__OpenBSD__) 447 int 448 uhci_activate(self, act) 449 device_ptr_t self; 450 enum devact act; 451 { 452 struct uhci_softc *sc = (struct uhci_softc *)self; 453 int rv = 0; 454 455 switch (act) { 456 case DVACT_ACTIVATE: 457 return (EOPNOTSUPP); 458 break; 459 460 case DVACT_DEACTIVATE: 461 if (sc->sc_child != NULL) 462 rv = config_deactivate(sc->sc_child); 463 break; 464 } 465 return (rv); 466 } 467 468 int 469 uhci_detach(sc, flags) 470 struct uhci_softc *sc; 471 int flags; 472 { 473 usbd_xfer_handle xfer; 474 int rv = 0; 475 476 if (sc->sc_child != NULL) 477 rv = config_detach(sc->sc_child, flags); 478 479 if (rv != 0) 480 return (rv); 481 482 powerhook_disestablish(sc->sc_powerhook); 483 shutdownhook_disestablish(sc->sc_shutdownhook); 484 485 /* Free all xfers associated with this HC. */ 486 for (;;) { 487 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 488 if (xfer == NULL) 489 break; 490 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 491 free(xfer, M_USB); 492 } 493 494 /* XXX free other data structures XXX */ 495 496 return (rv); 497 } 498 #endif 499 500 usbd_status 501 uhci_allocm(bus, dma, size) 502 struct usbd_bus *bus; 503 usb_dma_t *dma; 504 u_int32_t size; 505 { 506 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 507 dma)); 508 } 509 510 void 511 uhci_freem(bus, dma) 512 struct usbd_bus *bus; 513 usb_dma_t *dma; 514 { 515 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 516 } 517 518 usbd_xfer_handle 519 uhci_allocx(bus) 520 struct usbd_bus *bus; 521 { 522 struct uhci_softc *sc = (struct uhci_softc *)bus; 523 usbd_xfer_handle xfer; 524 525 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 526 if (xfer != NULL) 527 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 528 else 529 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 530 if (xfer != NULL) 531 memset(xfer, 0, sizeof *xfer); 532 return (xfer); 533 } 534 535 void 536 uhci_freex(bus, xfer) 537 struct usbd_bus *bus; 538 usbd_xfer_handle xfer; 539 { 540 struct uhci_softc *sc = (struct uhci_softc *)bus; 541 542 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 543 } 544 545 /* 546 * Shut down the controller when the system is going down. 547 */ 548 void 549 uhci_shutdown(v) 550 void *v; 551 { 552 uhci_softc_t *sc = v; 553 554 DPRINTF(("uhci_shutdown: stopping the HC\n")); 555 uhci_run(sc, 0); /* stop the controller */ 556 } 557 558 /* 559 * Handle suspend/resume. 560 * 561 * We need to switch to polling mode here, because this routine is 562 * called from an intterupt context. This is all right since we 563 * are almost suspended anyway. 564 */ 565 void 566 uhci_power(why, v) 567 int why; 568 void *v; 569 { 570 uhci_softc_t *sc = v; 571 int cmd; 572 int s; 573 574 s = splusb(); 575 cmd = UREAD2(sc, UHCI_CMD); 576 577 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 578 sc, why, sc->sc_suspend, cmd)); 579 580 if (why != PWR_RESUME) { 581 #ifdef UHCI_DEBUG 582 if (uhcidebug > 2) 583 uhci_dumpregs(sc); 584 #endif 585 if (sc->sc_has_timo != NULL) 586 usb_untimeout(uhci_timo, sc->sc_has_timo, 587 sc->sc_has_timo->timo_handle); 588 sc->sc_bus.use_polling++; 589 uhci_run(sc, 0); /* stop the controller */ 590 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 591 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 592 sc->sc_suspend = why; 593 sc->sc_bus.use_polling--; 594 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 595 } else { 596 /* 597 * XXX We should really do much more here in case the 598 * controller registers have been lost and BIOS has 599 * not restored them. 600 */ 601 #ifdef DIAGNOSTIC 602 if (sc->sc_suspend == PWR_RESUME) 603 printf("uhci_power: weird, resume without suspend.\n"); 604 #endif 605 sc->sc_bus.use_polling++; 606 sc->sc_suspend = why; 607 if (cmd & UHCI_CMD_RS) 608 uhci_run(sc, 0); /* in case BIOS has started it */ 609 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 610 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 611 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 612 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 613 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 614 uhci_run(sc, 1); /* and start traffic again */ 615 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 616 sc->sc_bus.use_polling--; 617 if (sc->sc_has_timo != NULL) 618 usb_timeout(uhci_timo, sc->sc_has_timo, 619 sc->sc_ival, sc->sc_has_timo->timo_handle); 620 #ifdef UHCI_DEBUG 621 if (uhcidebug > 2) 622 uhci_dumpregs(sc); 623 #endif 624 } 625 splx(s); 626 } 627 628 #ifdef UHCI_DEBUG 629 static void 630 uhci_dumpregs(sc) 631 uhci_softc_t *sc; 632 { 633 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 634 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 635 USBDEVNAME(sc->sc_bus.bdev), 636 UREAD2(sc, UHCI_CMD), 637 UREAD2(sc, UHCI_STS), 638 UREAD2(sc, UHCI_INTR), 639 UREAD2(sc, UHCI_FRNUM), 640 UREAD4(sc, UHCI_FLBASEADDR), 641 UREAD1(sc, UHCI_SOF), 642 UREAD2(sc, UHCI_PORTSC1), 643 UREAD2(sc, UHCI_PORTSC2))); 644 } 645 646 void 647 uhci_dump_td(p) 648 uhci_soft_td_t *p; 649 { 650 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 651 "token=0x%08lx buffer=0x%08lx\n", 652 p, (long)p->physaddr, 653 (long)LE(p->td.td_link), 654 (long)LE(p->td.td_status), 655 (long)LE(p->td.td_token), 656 (long)LE(p->td.td_buffer))); 657 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 658 "D=%d,maxlen=%d\n", 659 (int)LE(p->td.td_link), 660 "\20\1T\2Q\3VF", 661 (int)LE(p->td.td_status), 662 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 663 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 664 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 665 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 666 UHCI_TD_GET_PID(LE(p->td.td_token)), 667 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 668 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 669 UHCI_TD_GET_DT(LE(p->td.td_token)), 670 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 671 } 672 673 void 674 uhci_dump_qh(sqh) 675 uhci_soft_qh_t *sqh; 676 { 677 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 678 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 679 } 680 681 682 #if 0 683 void 684 uhci_dump() 685 { 686 uhci_softc_t *sc = uhci; 687 688 uhci_dumpregs(sc); 689 printf("intrs=%d\n", sc->sc_bus.no_intrs); 690 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 691 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 692 } 693 #endif 694 695 696 void 697 uhci_dump_qhs(sqh) 698 uhci_soft_qh_t *sqh; 699 { 700 uhci_dump_qh(sqh); 701 702 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 703 * Traverses sideways first, then down. 704 * 705 * QH1 706 * QH2 707 * No QH 708 * TD2.1 709 * TD2.2 710 * TD1.1 711 * etc. 712 * 713 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 714 */ 715 716 717 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 718 uhci_dump_qhs(sqh->hlink); 719 else 720 DPRINTF(("No QH\n")); 721 722 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 723 uhci_dump_tds(sqh->elink); 724 else 725 DPRINTF(("No TD\n")); 726 } 727 728 void 729 uhci_dump_tds(std) 730 uhci_soft_td_t *std; 731 { 732 uhci_soft_td_t *td; 733 734 for(td = std; td != NULL; td = td->link.std) { 735 uhci_dump_td(td); 736 737 /* Check whether the link pointer in this TD marks 738 * the link pointer as end of queue. This avoids 739 * printing the free list in case the queue/TD has 740 * already been moved there (seatbelt). 741 */ 742 if (td->td.td_link & UHCI_PTR_T || 743 td->td.td_link == 0) 744 break; 745 } 746 } 747 #endif 748 749 /* 750 * This routine is executed periodically and simulates interrupts 751 * from the root controller interrupt pipe for port status change. 752 */ 753 void 754 uhci_timo(addr) 755 void *addr; 756 { 757 usbd_xfer_handle xfer = addr; 758 usbd_pipe_handle pipe = xfer->pipe; 759 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 760 int s; 761 u_char *p; 762 763 DPRINTFN(20, ("uhci_timo\n")); 764 765 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 766 767 p = KERNADDR(&xfer->dmabuf); 768 p[0] = 0; 769 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 770 p[0] |= 1<<1; 771 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 772 p[0] |= 1<<2; 773 if (p[0] == 0) 774 /* No change, try again in a while */ 775 return; 776 777 xfer->actlen = 1; 778 xfer->status = USBD_NORMAL_COMPLETION; 779 s = splusb(); 780 xfer->hcpriv = 0; 781 xfer->device->bus->intr_context++; 782 usb_transfer_complete(xfer); 783 xfer->device->bus->intr_context--; 784 splx(s); 785 } 786 787 void 788 uhci_root_intr_done(xfer) 789 usbd_xfer_handle xfer; 790 { 791 } 792 793 void 794 uhci_root_ctrl_done(xfer) 795 usbd_xfer_handle xfer; 796 { 797 } 798 799 void 800 uhci_lock_frames(sc) 801 uhci_softc_t *sc; 802 { 803 int s = splusb(); 804 805 while (sc->sc_vflock & UHCI_HAS_LOCK) { 806 sc->sc_vflock |= UHCI_WANT_LOCK; 807 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 808 } 809 sc->sc_vflock = UHCI_HAS_LOCK; 810 splx(s); 811 } 812 813 void 814 uhci_unlock_frames(sc) 815 uhci_softc_t *sc; 816 { 817 int s = splusb(); 818 819 sc->sc_vflock &= ~UHCI_HAS_LOCK; 820 if (sc->sc_vflock & UHCI_WANT_LOCK) 821 wakeup(&sc->sc_vflock); 822 splx(s); 823 } 824 825 /* 826 * Allocate an interrupt information struct. A free list is kept 827 * for fast allocation. 828 */ 829 uhci_intr_info_t * 830 uhci_alloc_intr_info(sc) 831 uhci_softc_t *sc; 832 { 833 uhci_intr_info_t *ii; 834 835 ii = LIST_FIRST(&uhci_ii_free); 836 if (ii) 837 LIST_REMOVE(ii, list); 838 else { 839 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 840 } 841 ii->sc = sc; 842 #if defined(__FreeBSD__) 843 callout_handle_init(&ii->timeout_handle); 844 #endif 845 846 return ii; 847 } 848 849 void 850 uhci_free_intr_info(ii) 851 uhci_intr_info_t *ii; 852 { 853 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 854 } 855 856 /* Add control QH, called at splusb(). */ 857 void 858 uhci_add_ctrl(sc, sqh) 859 uhci_softc_t *sc; 860 uhci_soft_qh_t *sqh; 861 { 862 uhci_soft_qh_t *eqh; 863 864 SPLUSBCHECK; 865 866 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 867 eqh = sc->sc_ctl_end; 868 sqh->hlink = eqh->hlink; 869 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 870 eqh->hlink = sqh; 871 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 872 sc->sc_ctl_end = sqh; 873 } 874 875 /* Remove control QH, called at splusb(). */ 876 void 877 uhci_remove_ctrl(sc, sqh) 878 uhci_softc_t *sc; 879 uhci_soft_qh_t *sqh; 880 { 881 uhci_soft_qh_t *pqh; 882 883 SPLUSBCHECK; 884 885 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 886 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 887 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 888 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 889 printf("uhci_remove_ctrl: QH not found\n"); 890 return; 891 } 892 #else 893 ; 894 #endif 895 pqh->hlink = sqh->hlink; 896 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 897 if (sc->sc_ctl_end == sqh) 898 sc->sc_ctl_end = pqh; 899 } 900 901 /* Add bulk QH, called at splusb(). */ 902 void 903 uhci_add_bulk(sc, sqh) 904 uhci_softc_t *sc; 905 uhci_soft_qh_t *sqh; 906 { 907 uhci_soft_qh_t *eqh; 908 909 SPLUSBCHECK; 910 911 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 912 eqh = sc->sc_bulk_end; 913 sqh->hlink = eqh->hlink; 914 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 915 eqh->hlink = sqh; 916 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 917 sc->sc_bulk_end = sqh; 918 } 919 920 /* Remove bulk QH, called at splusb(). */ 921 void 922 uhci_remove_bulk(sc, sqh) 923 uhci_softc_t *sc; 924 uhci_soft_qh_t *sqh; 925 { 926 uhci_soft_qh_t *pqh; 927 928 SPLUSBCHECK; 929 930 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 931 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 932 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 933 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 934 printf("uhci_remove_bulk: QH not found\n"); 935 return; 936 } 937 #else 938 ; 939 #endif 940 pqh->hlink = sqh->hlink; 941 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 942 if (sc->sc_bulk_end == sqh) 943 sc->sc_bulk_end = pqh; 944 } 945 946 int 947 uhci_intr(arg) 948 void *arg; 949 { 950 uhci_softc_t *sc = arg; 951 int status; 952 int ack; 953 uhci_intr_info_t *ii; 954 955 #ifdef UHCI_DEBUG 956 if (uhcidebug > 15) { 957 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 958 uhci_dumpregs(sc); 959 } 960 #endif 961 962 status = UREAD2(sc, UHCI_STS); 963 if (status == 0) /* The interrupt was not for us. */ 964 return (0); 965 966 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 967 if (sc->sc_suspend != PWR_RESUME) 968 printf("uhci_intr: suspended sts=0x%x\n", status); 969 #endif 970 971 ack = 0; 972 if (status & UHCI_STS_USBINT) 973 ack |= UHCI_STS_USBINT; 974 if (status & UHCI_STS_USBEI) 975 ack |= UHCI_STS_USBEI; 976 if (status & UHCI_STS_RD) { 977 ack |= UHCI_STS_RD; 978 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 979 } 980 if (status & UHCI_STS_HSE) { 981 ack |= UHCI_STS_HSE; 982 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 983 } 984 if (status & UHCI_STS_HCPE) { 985 ack |= UHCI_STS_HCPE; 986 printf("%s: host controller process error\n", 987 USBDEVNAME(sc->sc_bus.bdev)); 988 } 989 if (status & UHCI_STS_HCH) { 990 /* no acknowledge needed */ 991 printf("%s: host controller halted\n", 992 USBDEVNAME(sc->sc_bus.bdev)); 993 sc->sc_dying = 1; 994 } 995 996 if (ack) /* acknowledge the ints */ 997 UWRITE2(sc, UHCI_STS, ack); 998 else /* nothing to acknowledge */ 999 return (0); 1000 1001 sc->sc_bus.intr_context++; 1002 sc->sc_bus.no_intrs++; 1003 1004 /* 1005 * Interrupts on UHCI really suck. When the host controller 1006 * interrupts because a transfer is completed there is no 1007 * way of knowing which transfer it was. You can scan down 1008 * the TDs and QHs of the previous frame to limit the search, 1009 * but that assumes that the interrupt was not delayed by more 1010 * than 1 ms, which may not always be true (e.g. after debug 1011 * output on a slow console). 1012 * We scan all interrupt descriptors to see if any have 1013 * completed. 1014 */ 1015 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1016 uhci_check_intr(sc, ii); 1017 1018 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1019 1020 sc->sc_bus.intr_context--; 1021 1022 return (1); 1023 } 1024 1025 /* Check for an interrupt. */ 1026 void 1027 uhci_check_intr(sc, ii) 1028 uhci_softc_t *sc; 1029 uhci_intr_info_t *ii; 1030 { 1031 uhci_soft_td_t *std, *lstd; 1032 u_int32_t status; 1033 1034 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1035 #ifdef DIAGNOSTIC 1036 if (ii == NULL) { 1037 printf("uhci_check_intr: no ii? %p\n", ii); 1038 return; 1039 } 1040 #endif 1041 if (ii->stdstart == NULL) 1042 return; 1043 lstd = ii->stdend; 1044 #ifdef DIAGNOSTIC 1045 if (lstd == NULL) { 1046 printf("uhci_check_intr: std==0\n"); 1047 return; 1048 } 1049 #endif 1050 /* 1051 * If the last TD is still active we need to check whether there 1052 * is a an error somewhere in the middle, or whether there was a 1053 * short packet (SPD and not ACTIVE). 1054 */ 1055 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1056 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1057 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1058 status = LE(std->td.td_status); 1059 /* If there's an active TD the xfer isn't done. */ 1060 if (status & UHCI_TD_ACTIVE) 1061 break; 1062 /* Any kind of error makes the xfer done. */ 1063 if (status & UHCI_TD_STALLED) 1064 goto done; 1065 /* We want short packets, and it is short: it's done */ 1066 if ((status & UHCI_TD_SPD) && 1067 UHCI_TD_GET_ACTLEN(status) < 1068 UHCI_TD_GET_MAXLEN(LE(std->td.td_token))) 1069 goto done; 1070 } 1071 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1072 ii, ii->stdstart)); 1073 return; 1074 } 1075 done: 1076 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1077 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1078 uhci_idone(ii); 1079 } 1080 1081 /* Called at splusb() */ 1082 void 1083 uhci_idone(ii) 1084 uhci_intr_info_t *ii; 1085 { 1086 usbd_xfer_handle xfer = ii->xfer; 1087 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1088 uhci_soft_td_t *std; 1089 u_int32_t status = 0, nstatus; 1090 int actlen; 1091 1092 #ifdef DIAGNOSTIC 1093 { 1094 int s = splhigh(); 1095 if (ii->isdone) { 1096 splx(s); 1097 printf("uhci_idone: ii=%p is done!\n", ii); 1098 return; 1099 } 1100 ii->isdone = 1; 1101 splx(s); 1102 } 1103 #endif 1104 1105 if (xfer->status == USBD_CANCELLED || 1106 xfer->status == USBD_TIMEOUT) { 1107 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1108 return; 1109 } 1110 1111 if (xfer->nframes != 0) { 1112 /* Isoc transfer, do things differently. */ 1113 uhci_soft_td_t **stds = upipe->u.iso.stds; 1114 int i, n, nframes; 1115 1116 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1117 1118 nframes = xfer->nframes; 1119 actlen = 0; 1120 n = xfer->hcprivint; 1121 for (i = 0; i < nframes; i++) { 1122 std = stds[n]; 1123 #ifdef UHCI_DEBUG 1124 if (uhcidebug > 5) { 1125 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1126 uhci_dump_td(std); 1127 } 1128 #endif 1129 if (++n >= UHCI_VFRAMELIST_COUNT) 1130 n = 0; 1131 status = LE(std->td.td_status); 1132 actlen += UHCI_TD_GET_ACTLEN(status); 1133 } 1134 upipe->u.iso.inuse -= nframes; 1135 xfer->actlen = actlen; 1136 xfer->status = USBD_NORMAL_COMPLETION; 1137 xfer->hcpriv = ii; 1138 usb_transfer_complete(xfer); 1139 return; 1140 } 1141 1142 #ifdef UHCI_DEBUG 1143 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1144 ii, xfer, upipe)); 1145 if (uhcidebug > 10) 1146 uhci_dump_tds(ii->stdstart); 1147 #endif 1148 1149 /* The transfer is done, compute actual length and status. */ 1150 actlen = 0; 1151 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1152 nstatus = LE(std->td.td_status); 1153 if (nstatus & UHCI_TD_ACTIVE) 1154 break; 1155 1156 status = nstatus; 1157 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1158 actlen += UHCI_TD_GET_ACTLEN(status); 1159 } 1160 /* If there are left over TDs we need to update the toggle. */ 1161 if (std != NULL) 1162 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1163 1164 status &= UHCI_TD_ERROR; 1165 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1166 actlen, status)); 1167 xfer->actlen = actlen; 1168 if (status != 0) { 1169 DPRINTFN((status == UHCI_TD_STALLED)*10, 1170 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1171 "status 0x%b\n", 1172 xfer->pipe->device->address, 1173 xfer->pipe->endpoint->edesc->bEndpointAddress, 1174 (int)status, 1175 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1176 "STALLED\30ACTIVE")); 1177 if (status == UHCI_TD_STALLED) 1178 xfer->status = USBD_STALLED; 1179 else 1180 xfer->status = USBD_IOERROR; /* more info XXX */ 1181 } else { 1182 xfer->status = USBD_NORMAL_COMPLETION; 1183 } 1184 xfer->hcpriv = ii; 1185 usb_transfer_complete(xfer); 1186 } 1187 1188 /* 1189 * Called when a request does not complete. 1190 */ 1191 void 1192 uhci_timeout(addr) 1193 void *addr; 1194 { 1195 uhci_intr_info_t *ii = addr; 1196 1197 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1198 1199 #ifdef UHCI_DEBUG 1200 if (uhcidebug > 10) 1201 uhci_dump_tds(ii->stdstart); 1202 #endif 1203 1204 ii->xfer->device->bus->intr_context++; 1205 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1206 ii->xfer->device->bus->intr_context--; 1207 } 1208 1209 /* 1210 * Wait here until controller claims to have an interrupt. 1211 * Then call uhci_intr and return. Use timeout to avoid waiting 1212 * too long. 1213 * Only used during boot when interrupts are not enabled yet. 1214 */ 1215 void 1216 uhci_waitintr(sc, xfer) 1217 uhci_softc_t *sc; 1218 usbd_xfer_handle xfer; 1219 { 1220 int timo = xfer->timeout; 1221 uhci_intr_info_t *ii; 1222 1223 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1224 1225 xfer->status = USBD_IN_PROGRESS; 1226 for (; timo >= 0; timo--) { 1227 usb_delay_ms(&sc->sc_bus, 1); 1228 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1229 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1230 uhci_intr(sc); 1231 if (xfer->status != USBD_IN_PROGRESS) 1232 return; 1233 } 1234 } 1235 1236 /* Timeout */ 1237 DPRINTF(("uhci_waitintr: timeout\n")); 1238 for (ii = LIST_FIRST(&sc->sc_intrhead); 1239 ii != NULL && ii->xfer != xfer; 1240 ii = LIST_NEXT(ii, list)) 1241 ; 1242 #ifdef DIAGNOSTIC 1243 if (ii == NULL) 1244 panic("uhci_waitintr: lost intr_info\n"); 1245 #endif 1246 uhci_idone(ii); 1247 } 1248 1249 void 1250 uhci_poll(bus) 1251 struct usbd_bus *bus; 1252 { 1253 uhci_softc_t *sc = (uhci_softc_t *)bus; 1254 1255 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1256 uhci_intr(sc); 1257 } 1258 1259 #if 0 1260 void 1261 uhci_reset(p) 1262 void *p; 1263 { 1264 uhci_softc_t *sc = p; 1265 int n; 1266 1267 UHCICMD(sc, UHCI_CMD_HCRESET); 1268 /* The reset bit goes low when the controller is done. */ 1269 for (n = 0; n < UHCI_RESET_TIMEOUT && 1270 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1271 delay(100); 1272 if (n >= UHCI_RESET_TIMEOUT) 1273 printf("%s: controller did not reset\n", 1274 USBDEVNAME(sc->sc_bus.bdev)); 1275 } 1276 #endif 1277 1278 usbd_status 1279 uhci_run(sc, run) 1280 uhci_softc_t *sc; 1281 int run; 1282 { 1283 int s, n, running; 1284 u_int16_t cmd; 1285 1286 run = run != 0; 1287 s = splusb(); 1288 DPRINTF(("uhci_run: setting run=%d\n", run)); 1289 cmd = UREAD2(sc, UHCI_CMD); 1290 if (run) 1291 cmd |= UHCI_CMD_RS; 1292 else 1293 cmd &= ~UHCI_CMD_RS; 1294 UHCICMD(sc, cmd); 1295 for(n = 0; n < 10; n++) { 1296 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1297 /* return when we've entered the state we want */ 1298 if (run == running) { 1299 splx(s); 1300 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1301 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1302 return (USBD_NORMAL_COMPLETION); 1303 } 1304 usb_delay_ms(&sc->sc_bus, 1); 1305 } 1306 splx(s); 1307 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1308 run ? "start" : "stop"); 1309 return (USBD_IOERROR); 1310 } 1311 1312 /* 1313 * Memory management routines. 1314 * uhci_alloc_std allocates TDs 1315 * uhci_alloc_sqh allocates QHs 1316 * These two routines do their own free list management, 1317 * partly for speed, partly because allocating DMAable memory 1318 * has page size granularaity so much memory would be wasted if 1319 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1320 */ 1321 1322 uhci_soft_td_t * 1323 uhci_alloc_std(sc) 1324 uhci_softc_t *sc; 1325 { 1326 uhci_soft_td_t *std; 1327 usbd_status err; 1328 int i, offs; 1329 usb_dma_t dma; 1330 1331 if (sc->sc_freetds == NULL) { 1332 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1333 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1334 UHCI_TD_ALIGN, &dma); 1335 if (err) 1336 return (0); 1337 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1338 offs = i * UHCI_STD_SIZE; 1339 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1340 std->physaddr = DMAADDR(&dma) + offs; 1341 std->link.std = sc->sc_freetds; 1342 sc->sc_freetds = std; 1343 } 1344 } 1345 std = sc->sc_freetds; 1346 sc->sc_freetds = std->link.std; 1347 memset(&std->td, 0, sizeof(uhci_td_t)); 1348 return std; 1349 } 1350 1351 void 1352 uhci_free_std(sc, std) 1353 uhci_softc_t *sc; 1354 uhci_soft_td_t *std; 1355 { 1356 #ifdef DIAGNOSTIC 1357 #define TD_IS_FREE 0x12345678 1358 if (std->td.td_token == LE(TD_IS_FREE)) { 1359 printf("uhci_free_std: freeing free TD %p\n", std); 1360 return; 1361 } 1362 std->td.td_token = LE(TD_IS_FREE); 1363 #endif 1364 std->link.std = sc->sc_freetds; 1365 sc->sc_freetds = std; 1366 } 1367 1368 uhci_soft_qh_t * 1369 uhci_alloc_sqh(sc) 1370 uhci_softc_t *sc; 1371 { 1372 uhci_soft_qh_t *sqh; 1373 usbd_status err; 1374 int i, offs; 1375 usb_dma_t dma; 1376 1377 if (sc->sc_freeqhs == NULL) { 1378 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1379 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1380 UHCI_QH_ALIGN, &dma); 1381 if (err) 1382 return (0); 1383 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1384 offs = i * UHCI_SQH_SIZE; 1385 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1386 sqh->physaddr = DMAADDR(&dma) + offs; 1387 sqh->hlink = sc->sc_freeqhs; 1388 sc->sc_freeqhs = sqh; 1389 } 1390 } 1391 sqh = sc->sc_freeqhs; 1392 sc->sc_freeqhs = sqh->hlink; 1393 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1394 return (sqh); 1395 } 1396 1397 void 1398 uhci_free_sqh(sc, sqh) 1399 uhci_softc_t *sc; 1400 uhci_soft_qh_t *sqh; 1401 { 1402 sqh->hlink = sc->sc_freeqhs; 1403 sc->sc_freeqhs = sqh; 1404 } 1405 1406 #if 0 1407 /* 1408 * Enter a list of transfers onto a control queue. 1409 * Called at splusb() 1410 */ 1411 void 1412 uhci_enter_ctl_q(sc, sqh, ii) 1413 uhci_softc_t *sc; 1414 uhci_soft_qh_t *sqh; 1415 uhci_intr_info_t *ii; 1416 { 1417 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1418 1419 } 1420 #endif 1421 1422 void 1423 uhci_free_std_chain(sc, std, stdend) 1424 uhci_softc_t *sc; 1425 uhci_soft_td_t *std; 1426 uhci_soft_td_t *stdend; 1427 { 1428 uhci_soft_td_t *p; 1429 1430 for (; std != stdend; std = p) { 1431 p = std->link.std; 1432 uhci_free_std(sc, std); 1433 } 1434 } 1435 1436 usbd_status 1437 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1438 struct uhci_pipe *upipe; 1439 uhci_softc_t *sc; 1440 int len, rd; 1441 u_int16_t flags; 1442 usb_dma_t *dma; 1443 uhci_soft_td_t **sp, **ep; 1444 { 1445 uhci_soft_td_t *p, *lastp; 1446 uhci_physaddr_t lastlink; 1447 int i, ntd, l, tog, maxp; 1448 u_int32_t status; 1449 int addr = upipe->pipe.device->address; 1450 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1451 1452 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1453 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1454 upipe->pipe.device->lowspeed, flags)); 1455 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1456 if (maxp == 0) { 1457 printf("uhci_alloc_std_chain: maxp=0\n"); 1458 return (USBD_INVAL); 1459 } 1460 ntd = (len + maxp - 1) / maxp; 1461 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1462 ntd++; 1463 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1464 if (ntd == 0) { 1465 *sp = *ep = 0; 1466 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1467 return (USBD_NORMAL_COMPLETION); 1468 } 1469 tog = upipe->nexttoggle; 1470 if (ntd % 2 == 0) 1471 tog ^= 1; 1472 upipe->nexttoggle = tog ^ 1; 1473 lastp = 0; 1474 lastlink = UHCI_PTR_T; 1475 ntd--; 1476 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1477 if (upipe->pipe.device->lowspeed) 1478 status |= UHCI_TD_LS; 1479 if (flags & USBD_SHORT_XFER_OK) 1480 status |= UHCI_TD_SPD; 1481 for (i = ntd; i >= 0; i--) { 1482 p = uhci_alloc_std(sc); 1483 if (p == NULL) { 1484 uhci_free_std_chain(sc, lastp, 0); 1485 return (USBD_NOMEM); 1486 } 1487 p->link.std = lastp; 1488 if (lastlink == UHCI_PTR_T) 1489 p->td.td_link = LE(lastlink); 1490 else 1491 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1492 lastp = p; 1493 lastlink = p->physaddr; 1494 p->td.td_status = LE(status); 1495 if (i == ntd) { 1496 /* last TD */ 1497 l = len % maxp; 1498 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1499 l = maxp; 1500 *ep = p; 1501 } else 1502 l = maxp; 1503 p->td.td_token = 1504 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1505 UHCI_TD_OUT(l, endpt, addr, tog)); 1506 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1507 tog ^= 1; 1508 } 1509 *sp = lastp; 1510 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1511 upipe->nexttoggle)); 1512 return (USBD_NORMAL_COMPLETION); 1513 } 1514 1515 void 1516 uhci_device_clear_toggle(pipe) 1517 usbd_pipe_handle pipe; 1518 { 1519 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1520 upipe->nexttoggle = 0; 1521 } 1522 1523 void 1524 uhci_noop(pipe) 1525 usbd_pipe_handle pipe; 1526 { 1527 } 1528 1529 usbd_status 1530 uhci_device_bulk_transfer(xfer) 1531 usbd_xfer_handle xfer; 1532 { 1533 usbd_status err; 1534 1535 /* Insert last in queue. */ 1536 err = usb_insert_transfer(xfer); 1537 if (err) 1538 return (err); 1539 1540 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1541 * start first 1542 */ 1543 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1544 } 1545 1546 usbd_status 1547 uhci_device_bulk_start(xfer) 1548 usbd_xfer_handle xfer; 1549 { 1550 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1551 usbd_device_handle dev = upipe->pipe.device; 1552 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1553 uhci_intr_info_t *ii = upipe->iinfo; 1554 uhci_soft_td_t *data, *dataend; 1555 uhci_soft_qh_t *sqh; 1556 usbd_status err; 1557 int len, isread, endpt; 1558 int s; 1559 1560 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1561 xfer, xfer->length, xfer->flags)); 1562 1563 if (sc->sc_dying) 1564 return (USBD_IOERROR); 1565 1566 #ifdef DIAGNOSTIC 1567 if (xfer->rqflags & URQ_REQUEST) 1568 panic("uhci_device_bulk_transfer: a request\n"); 1569 #endif 1570 1571 len = xfer->length; 1572 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1573 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1574 sqh = upipe->u.bulk.sqh; 1575 1576 upipe->u.bulk.isread = isread; 1577 upipe->u.bulk.length = len; 1578 1579 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1580 &xfer->dmabuf, &data, &dataend); 1581 if (err) 1582 return (err); 1583 dataend->td.td_status |= LE(UHCI_TD_IOC); 1584 1585 #ifdef UHCI_DEBUG 1586 if (uhcidebug > 8) { 1587 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1588 uhci_dump_tds(data); 1589 } 1590 #endif 1591 1592 /* Set up interrupt info. */ 1593 ii->xfer = xfer; 1594 ii->stdstart = data; 1595 ii->stdend = dataend; 1596 #if defined(__FreeBSD__) 1597 callout_handle_init(&ii->timeout_handle); 1598 #endif 1599 #ifdef DIAGNOSTIC 1600 if (!ii->isdone) { 1601 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1602 } 1603 ii->isdone = 0; 1604 #endif 1605 1606 sqh->elink = data; 1607 sqh->qh.qh_elink = LE(data->physaddr); 1608 sqh->intr_info = ii; 1609 1610 s = splusb(); 1611 uhci_add_bulk(sc, sqh); 1612 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1613 1614 if (xfer->timeout && !sc->sc_bus.use_polling) { 1615 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1616 ii->timeout_handle); 1617 } 1618 splx(s); 1619 1620 #ifdef UHCI_DEBUG 1621 if (uhcidebug > 10) { 1622 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1623 uhci_dump_tds(data); 1624 } 1625 #endif 1626 1627 if (sc->sc_bus.use_polling) 1628 uhci_waitintr(sc, xfer); 1629 1630 return (USBD_IN_PROGRESS); 1631 } 1632 1633 /* Abort a device bulk request. */ 1634 void 1635 uhci_device_bulk_abort(xfer) 1636 usbd_xfer_handle xfer; 1637 { 1638 DPRINTF(("uhci_device_bulk_abort:\n")); 1639 uhci_abort_xfer(xfer, USBD_CANCELLED); 1640 } 1641 1642 void 1643 uhci_abort_xfer(xfer, status) 1644 usbd_xfer_handle xfer; 1645 usbd_status status; 1646 { 1647 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1648 uhci_intr_info_t *ii = upipe->iinfo; 1649 uhci_soft_td_t *std; 1650 1651 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1652 1653 /* Make interrupt routine ignore it, */ 1654 xfer->status = status; 1655 1656 /* don't timeout, */ 1657 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1658 1659 /* make hardware ignore it, */ 1660 for (std = ii->stdstart; std != 0; std = std->link.std) 1661 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1662 1663 xfer->hcpriv = ii; 1664 1665 #if 1 1666 /* Make sure hardware has completed. */ 1667 if (xfer->device->bus->intr_context) { 1668 /* We have no process context, so we can't use tsleep(). */ 1669 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1670 } else { 1671 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1672 KASSERT(intr_nesting_level == 0, 1673 ("ohci_abort_req in interrupt context")); 1674 #endif 1675 usb_delay_ms(xfer->pipe->device->bus, 1); 1676 /* and call final part of interrupt handler. */ 1677 uhci_abort_xfer_end(xfer); 1678 } 1679 #else 1680 delay(1000); 1681 uhci_abort_xfer_end(xfer); 1682 #endif 1683 } 1684 1685 void 1686 uhci_abort_xfer_end(v) 1687 void *v; 1688 { 1689 usbd_xfer_handle xfer = v; 1690 int s; 1691 1692 s = splusb(); 1693 usb_transfer_complete(xfer); 1694 splx(s); 1695 } 1696 1697 /* Close a device bulk pipe. */ 1698 void 1699 uhci_device_bulk_close(pipe) 1700 usbd_pipe_handle pipe; 1701 { 1702 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1703 usbd_device_handle dev = upipe->pipe.device; 1704 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1705 1706 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1707 uhci_free_intr_info(upipe->iinfo); 1708 /* XXX free other resources */ 1709 } 1710 1711 usbd_status 1712 uhci_device_ctrl_transfer(xfer) 1713 usbd_xfer_handle xfer; 1714 { 1715 usbd_status err; 1716 1717 /* Insert last in queue. */ 1718 err = usb_insert_transfer(xfer); 1719 if (err) 1720 return (err); 1721 1722 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1723 * start first 1724 */ 1725 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1726 } 1727 1728 usbd_status 1729 uhci_device_ctrl_start(xfer) 1730 usbd_xfer_handle xfer; 1731 { 1732 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1733 usbd_status err; 1734 1735 if (sc->sc_dying) 1736 return (USBD_IOERROR); 1737 1738 #ifdef DIAGNOSTIC 1739 if (!(xfer->rqflags & URQ_REQUEST)) 1740 panic("uhci_device_ctrl_transfer: not a request\n"); 1741 #endif 1742 1743 err = uhci_device_request(xfer); 1744 if (err) 1745 return (err); 1746 1747 if (sc->sc_bus.use_polling) 1748 uhci_waitintr(sc, xfer); 1749 return (USBD_IN_PROGRESS); 1750 } 1751 1752 usbd_status 1753 uhci_device_intr_transfer(xfer) 1754 usbd_xfer_handle xfer; 1755 { 1756 usbd_status err; 1757 1758 /* Insert last in queue. */ 1759 err = usb_insert_transfer(xfer); 1760 if (err) 1761 return (err); 1762 1763 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1764 * start first 1765 */ 1766 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1767 } 1768 1769 usbd_status 1770 uhci_device_intr_start(xfer) 1771 usbd_xfer_handle xfer; 1772 { 1773 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1774 usbd_device_handle dev = upipe->pipe.device; 1775 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1776 uhci_intr_info_t *ii = upipe->iinfo; 1777 uhci_soft_td_t *data, *dataend; 1778 uhci_soft_qh_t *sqh; 1779 usbd_status err; 1780 int i, s; 1781 1782 if (sc->sc_dying) 1783 return (USBD_IOERROR); 1784 1785 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1786 xfer, xfer->length, xfer->flags)); 1787 1788 #ifdef DIAGNOSTIC 1789 if (xfer->rqflags & URQ_REQUEST) 1790 panic("uhci_device_intr_transfer: a request\n"); 1791 #endif 1792 1793 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1794 &xfer->dmabuf, &data, &dataend); 1795 if (err) 1796 return (err); 1797 dataend->td.td_status |= LE(UHCI_TD_IOC); 1798 1799 #ifdef UHCI_DEBUG 1800 if (uhcidebug > 10) { 1801 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1802 uhci_dump_tds(data); 1803 uhci_dump_qh(upipe->u.intr.qhs[0]); 1804 } 1805 #endif 1806 1807 s = splusb(); 1808 /* Set up interrupt info. */ 1809 ii->xfer = xfer; 1810 ii->stdstart = data; 1811 ii->stdend = dataend; 1812 #if defined(__FreeBSD__) 1813 callout_handle_init(&ii->timeout_handle); 1814 #endif 1815 #ifdef DIAGNOSTIC 1816 if (!ii->isdone) { 1817 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1818 } 1819 ii->isdone = 0; 1820 #endif 1821 1822 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1823 upipe->u.intr.qhs[0])); 1824 for (i = 0; i < upipe->u.intr.npoll; i++) { 1825 sqh = upipe->u.intr.qhs[i]; 1826 sqh->elink = data; 1827 sqh->qh.qh_elink = LE(data->physaddr); 1828 } 1829 splx(s); 1830 1831 #ifdef UHCI_DEBUG 1832 if (uhcidebug > 10) { 1833 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1834 uhci_dump_tds(data); 1835 uhci_dump_qh(upipe->u.intr.qhs[0]); 1836 } 1837 #endif 1838 1839 return (USBD_IN_PROGRESS); 1840 } 1841 1842 /* Abort a device control request. */ 1843 void 1844 uhci_device_ctrl_abort(xfer) 1845 usbd_xfer_handle xfer; 1846 { 1847 DPRINTF(("uhci_device_ctrl_abort:\n")); 1848 uhci_abort_xfer(xfer, USBD_CANCELLED); 1849 } 1850 1851 /* Close a device control pipe. */ 1852 void 1853 uhci_device_ctrl_close(pipe) 1854 usbd_pipe_handle pipe; 1855 { 1856 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1857 1858 uhci_free_intr_info(upipe->iinfo); 1859 /* XXX free other resources? */ 1860 } 1861 1862 /* Abort a device interrupt request. */ 1863 void 1864 uhci_device_intr_abort(xfer) 1865 usbd_xfer_handle xfer; 1866 { 1867 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1868 if (xfer->pipe->intrxfer == xfer) { 1869 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1870 xfer->pipe->intrxfer = 0; 1871 } 1872 uhci_abort_xfer(xfer, USBD_CANCELLED); 1873 } 1874 1875 /* Close a device interrupt pipe. */ 1876 void 1877 uhci_device_intr_close(pipe) 1878 usbd_pipe_handle pipe; 1879 { 1880 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1881 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1882 int i, s, npoll; 1883 1884 upipe->iinfo->stdstart = 0; /* inactive */ 1885 1886 /* Unlink descriptors from controller data structures. */ 1887 npoll = upipe->u.intr.npoll; 1888 uhci_lock_frames(sc); 1889 for (i = 0; i < npoll; i++) 1890 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1891 upipe->u.intr.qhs[i]); 1892 uhci_unlock_frames(sc); 1893 1894 /* 1895 * We now have to wait for any activity on the physical 1896 * descriptors to stop. 1897 */ 1898 usb_delay_ms(&sc->sc_bus, 2); 1899 1900 for(i = 0; i < npoll; i++) 1901 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1902 free(upipe->u.intr.qhs, M_USBHC); 1903 1904 s = splusb(); 1905 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1906 splx(s); 1907 uhci_free_intr_info(upipe->iinfo); 1908 1909 /* XXX free other resources */ 1910 } 1911 1912 usbd_status 1913 uhci_device_request(xfer) 1914 usbd_xfer_handle xfer; 1915 { 1916 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1917 usb_device_request_t *req = &xfer->request; 1918 usbd_device_handle dev = upipe->pipe.device; 1919 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1920 int addr = dev->address; 1921 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1922 uhci_intr_info_t *ii = upipe->iinfo; 1923 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1924 uhci_soft_qh_t *sqh; 1925 int len; 1926 u_int32_t ls; 1927 usbd_status err; 1928 int isread; 1929 int s; 1930 1931 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1932 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1933 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1934 UGETW(req->wIndex), UGETW(req->wLength), 1935 addr, endpt)); 1936 1937 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1938 isread = req->bmRequestType & UT_READ; 1939 len = UGETW(req->wLength); 1940 1941 setup = upipe->u.ctl.setup; 1942 stat = upipe->u.ctl.stat; 1943 sqh = upipe->u.ctl.sqh; 1944 1945 /* Set up data transaction */ 1946 if (len != 0) { 1947 upipe->nexttoggle = 1; 1948 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1949 &xfer->dmabuf, &data, &dataend); 1950 if (err) 1951 return (err); 1952 next = data; 1953 dataend->link.std = stat; 1954 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1955 } else { 1956 next = stat; 1957 } 1958 upipe->u.ctl.length = len; 1959 1960 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1961 1962 setup->link.std = next; 1963 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1964 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1965 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1966 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1967 1968 stat->link.std = 0; 1969 stat->td.td_link = LE(UHCI_PTR_T); 1970 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1971 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1972 stat->td.td_token = 1973 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1974 UHCI_TD_IN (0, endpt, addr, 1)); 1975 stat->td.td_buffer = LE(0); 1976 1977 #ifdef UHCI_DEBUG 1978 if (uhcidebug > 10) { 1979 DPRINTF(("uhci_device_request: before transfer\n")); 1980 uhci_dump_tds(setup); 1981 } 1982 #endif 1983 1984 /* Set up interrupt info. */ 1985 ii->xfer = xfer; 1986 ii->stdstart = setup; 1987 ii->stdend = stat; 1988 #if defined(__FreeBSD__) 1989 callout_handle_init(&ii->timeout_handle); 1990 #endif 1991 #ifdef DIAGNOSTIC 1992 if (!ii->isdone) { 1993 printf("uhci_device_request: not done, ii=%p\n", ii); 1994 } 1995 ii->isdone = 0; 1996 #endif 1997 1998 sqh->elink = setup; 1999 sqh->qh.qh_elink = LE(setup->physaddr); 2000 sqh->intr_info = ii; 2001 2002 s = splusb(); 2003 uhci_add_ctrl(sc, sqh); 2004 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2005 #ifdef UHCI_DEBUG 2006 if (uhcidebug > 12) { 2007 uhci_soft_td_t *std; 2008 uhci_soft_qh_t *xqh; 2009 uhci_soft_qh_t *sxqh; 2010 int maxqh = 0; 2011 uhci_physaddr_t link; 2012 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2013 for (std = sc->sc_vframes[0].htd, link = 0; 2014 (link & UHCI_PTR_Q) == 0; 2015 std = std->link.std) { 2016 link = LE(std->td.td_link); 2017 uhci_dump_td(std); 2018 } 2019 sxqh = (uhci_soft_qh_t *)std; 2020 uhci_dump_qh(sxqh); 2021 for (xqh = sxqh; 2022 xqh != NULL; 2023 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2024 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2025 uhci_dump_qh(xqh); 2026 } 2027 DPRINTF(("Enqueued QH:\n")); 2028 uhci_dump_qh(sqh); 2029 uhci_dump_tds(sqh->elink); 2030 } 2031 #endif 2032 if (xfer->timeout && !sc->sc_bus.use_polling) { 2033 usb_timeout(uhci_timeout, ii, 2034 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2035 } 2036 splx(s); 2037 2038 return (USBD_NORMAL_COMPLETION); 2039 } 2040 2041 usbd_status 2042 uhci_device_isoc_transfer(xfer) 2043 usbd_xfer_handle xfer; 2044 { 2045 usbd_status err; 2046 2047 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2048 2049 /* Put it on our queue, */ 2050 err = usb_insert_transfer(xfer); 2051 2052 /* bail out on error, */ 2053 if (err && err != USBD_IN_PROGRESS) 2054 return (err); 2055 2056 /* XXX should check inuse here */ 2057 2058 /* insert into schedule, */ 2059 uhci_device_isoc_enter(xfer); 2060 2061 /* and put on interrupt list if the pipe wasn't running */ 2062 if (!err) 2063 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2064 2065 return (err); 2066 } 2067 2068 void 2069 uhci_device_isoc_enter(xfer) 2070 usbd_xfer_handle xfer; 2071 { 2072 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2073 usbd_device_handle dev = upipe->pipe.device; 2074 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2075 struct iso *iso = &upipe->u.iso; 2076 uhci_soft_td_t *std; 2077 u_int32_t buf, len, status; 2078 int s, i, next, nframes; 2079 2080 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2081 "nframes=%d\n", 2082 iso->inuse, iso->next, xfer, xfer->nframes)); 2083 2084 if (sc->sc_dying) 2085 return; 2086 2087 if (xfer->status == USBD_IN_PROGRESS) { 2088 /* This request has already been entered into the frame list */ 2089 /* XXX */ 2090 } 2091 2092 #ifdef DIAGNOSTIC 2093 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2094 printf("uhci_device_isoc_enter: overflow!\n"); 2095 #endif 2096 2097 next = iso->next; 2098 if (next == -1) { 2099 /* Not in use yet, schedule it a few frames ahead. */ 2100 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2101 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2102 } 2103 2104 xfer->status = USBD_IN_PROGRESS; 2105 xfer->hcprivint = next; 2106 2107 buf = DMAADDR(&xfer->dmabuf); 2108 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2109 UHCI_TD_ACTIVE | 2110 UHCI_TD_IOS)); 2111 nframes = xfer->nframes; 2112 s = splusb(); 2113 for (i = 0; i < nframes; i++) { 2114 std = iso->stds[next]; 2115 if (++next >= UHCI_VFRAMELIST_COUNT) 2116 next = 0; 2117 len = xfer->frlengths[i]; 2118 std->td.td_buffer = LE(buf); 2119 if (i == nframes - 1) 2120 status |= LE(UHCI_TD_IOC); 2121 std->td.td_status = status; 2122 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2123 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2124 #ifdef UHCI_DEBUG 2125 if (uhcidebug > 5) { 2126 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2127 uhci_dump_td(std); 2128 } 2129 #endif 2130 buf += len; 2131 } 2132 iso->next = next; 2133 iso->inuse += xfer->nframes; 2134 2135 splx(s); 2136 } 2137 2138 usbd_status 2139 uhci_device_isoc_start(xfer) 2140 usbd_xfer_handle xfer; 2141 { 2142 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2143 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2144 uhci_intr_info_t *ii = upipe->iinfo; 2145 uhci_soft_td_t *end; 2146 int s, i; 2147 2148 if (sc->sc_dying) 2149 return (USBD_IOERROR); 2150 2151 #ifdef DIAGNOSTIC 2152 if (xfer->status != USBD_IN_PROGRESS) 2153 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2154 #endif 2155 2156 /* Find the last TD */ 2157 i = xfer->hcprivint + xfer->nframes; 2158 if (i >= UHCI_VFRAMELIST_COUNT) 2159 i -= UHCI_VFRAMELIST_COUNT; 2160 end = upipe->u.iso.stds[i]; 2161 2162 s = splusb(); 2163 2164 /* Set up interrupt info. */ 2165 ii->xfer = xfer; 2166 ii->stdstart = end; 2167 ii->stdend = end; 2168 #if defined(__FreeBSD__) 2169 callout_handle_init(&ii->timeout_handle); 2170 #endif 2171 #ifdef DIAGNOSTIC 2172 if (!ii->isdone) { 2173 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2174 } 2175 ii->isdone = 0; 2176 #endif 2177 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2178 2179 splx(s); 2180 2181 return (USBD_IN_PROGRESS); 2182 } 2183 2184 void 2185 uhci_device_isoc_abort(xfer) 2186 usbd_xfer_handle xfer; 2187 { 2188 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2189 uhci_intr_info_t *ii = upipe->iinfo; 2190 uhci_soft_td_t **stds = upipe->u.iso.stds; 2191 uhci_soft_td_t *std; 2192 int i, n, nframes; 2193 2194 /* Make interrupt routine ignore it, */ 2195 xfer->status = USBD_CANCELLED; 2196 2197 /* make hardware ignore it, */ 2198 nframes = xfer->nframes; 2199 n = xfer->hcprivint; 2200 for (i = 0; i < nframes; i++) { 2201 std = stds[n]; 2202 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2203 if (++n >= UHCI_VFRAMELIST_COUNT) 2204 n = 0; 2205 } 2206 2207 xfer->hcpriv = ii; 2208 2209 /* make sure hardware has completed, */ 2210 if (xfer->device->bus->intr_context) { 2211 /* We have no process context, so we can't use tsleep(). */ 2212 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2213 } else { 2214 usb_delay_ms(xfer->pipe->device->bus, 1); 2215 /* and call final part of interrupt handler. */ 2216 uhci_abort_xfer_end(xfer); 2217 } 2218 } 2219 2220 void 2221 uhci_device_isoc_close(pipe) 2222 usbd_pipe_handle pipe; 2223 { 2224 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2225 usbd_device_handle dev = upipe->pipe.device; 2226 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2227 uhci_soft_td_t *std, *vstd; 2228 struct iso *iso; 2229 int i; 2230 2231 /* 2232 * Make sure all TDs are marked as inactive. 2233 * Wait for completion. 2234 * Unschedule. 2235 * Deallocate. 2236 */ 2237 iso = &upipe->u.iso; 2238 2239 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2240 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2241 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2242 2243 uhci_lock_frames(sc); 2244 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2245 std = iso->stds[i]; 2246 for (vstd = sc->sc_vframes[i].htd; 2247 vstd != NULL && vstd->link.std != std; 2248 vstd = vstd->link.std) 2249 ; 2250 if (vstd == NULL) { 2251 /*panic*/ 2252 printf("uhci_device_isoc_close: %p not found\n", std); 2253 uhci_unlock_frames(sc); 2254 return; 2255 } 2256 vstd->link = std->link; 2257 vstd->td.td_link = std->td.td_link; 2258 uhci_free_std(sc, std); 2259 } 2260 uhci_unlock_frames(sc); 2261 2262 free(iso->stds, M_USBHC); 2263 } 2264 2265 usbd_status 2266 uhci_setup_isoc(pipe) 2267 usbd_pipe_handle pipe; 2268 { 2269 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2270 usbd_device_handle dev = upipe->pipe.device; 2271 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2272 int addr = upipe->pipe.device->address; 2273 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2274 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2275 uhci_soft_td_t *std, *vstd; 2276 u_int32_t token; 2277 struct iso *iso; 2278 int i; 2279 2280 iso = &upipe->u.iso; 2281 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2282 M_USBHC, M_WAITOK); 2283 2284 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2285 UHCI_TD_OUT(0, endpt, addr, 0)); 2286 2287 /* Allocate the TDs and mark as inactive; */ 2288 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2289 std = uhci_alloc_std(sc); 2290 if (std == 0) 2291 goto bad; 2292 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2293 std->td.td_token = token; 2294 iso->stds[i] = std; 2295 } 2296 2297 /* Insert TDs into schedule. */ 2298 uhci_lock_frames(sc); 2299 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2300 std = iso->stds[i]; 2301 vstd = sc->sc_vframes[i].htd; 2302 std->link = vstd->link; 2303 std->td.td_link = vstd->td.td_link; 2304 vstd->link.std = std; 2305 vstd->td.td_link = LE(std->physaddr); 2306 } 2307 uhci_unlock_frames(sc); 2308 2309 iso->next = -1; 2310 iso->inuse = 0; 2311 2312 return (USBD_NORMAL_COMPLETION); 2313 2314 bad: 2315 while (--i >= 0) 2316 uhci_free_std(sc, iso->stds[i]); 2317 free(iso->stds, M_USBHC); 2318 return (USBD_NOMEM); 2319 } 2320 2321 void 2322 uhci_device_isoc_done(xfer) 2323 usbd_xfer_handle xfer; 2324 { 2325 uhci_intr_info_t *ii = xfer->hcpriv; 2326 2327 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2328 2329 /* Turn off the interrupt since it is active even if the TD is not. */ 2330 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2331 2332 LIST_REMOVE(ii, list); /* remove from active list */ 2333 } 2334 2335 void 2336 uhci_device_intr_done(xfer) 2337 usbd_xfer_handle xfer; 2338 { 2339 uhci_intr_info_t *ii = xfer->hcpriv; 2340 uhci_softc_t *sc = ii->sc; 2341 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2342 uhci_soft_qh_t *sqh; 2343 int i, npoll; 2344 2345 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2346 2347 npoll = upipe->u.intr.npoll; 2348 for(i = 0; i < npoll; i++) { 2349 sqh = upipe->u.intr.qhs[i]; 2350 sqh->elink = 0; 2351 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2352 } 2353 uhci_free_std_chain(sc, ii->stdstart, 0); 2354 2355 /* XXX Wasteful. */ 2356 if (xfer->pipe->repeat) { 2357 uhci_soft_td_t *data, *dataend; 2358 2359 /* This alloc cannot fail since we freed the chain above. */ 2360 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2361 &xfer->dmabuf, &data, &dataend); 2362 dataend->td.td_status |= LE(UHCI_TD_IOC); 2363 2364 #ifdef UHCI_DEBUG 2365 if (uhcidebug > 10) { 2366 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2367 uhci_dump_tds(data); 2368 uhci_dump_qh(upipe->u.intr.qhs[0]); 2369 } 2370 #endif 2371 2372 ii->stdstart = data; 2373 ii->stdend = dataend; 2374 #if defined(__FreeBSD__) 2375 callout_handle_init(&ii->timeout_handle); 2376 #endif 2377 #ifdef DIAGNOSTIC 2378 if (!ii->isdone) { 2379 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2380 } 2381 ii->isdone = 0; 2382 #endif 2383 for (i = 0; i < npoll; i++) { 2384 sqh = upipe->u.intr.qhs[i]; 2385 sqh->elink = data; 2386 sqh->qh.qh_elink = LE(data->physaddr); 2387 } 2388 } else { 2389 ii->stdstart = 0; /* mark as inactive */ 2390 } 2391 } 2392 2393 /* Deallocate request data structures */ 2394 void 2395 uhci_device_ctrl_done(xfer) 2396 usbd_xfer_handle xfer; 2397 { 2398 uhci_intr_info_t *ii = xfer->hcpriv; 2399 uhci_softc_t *sc = ii->sc; 2400 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2401 2402 #ifdef DIAGNOSTIC 2403 if (!(xfer->rqflags & URQ_REQUEST)) 2404 panic("uhci_ctrl_done: not a request\n"); 2405 #endif 2406 2407 LIST_REMOVE(ii, list); /* remove from active list */ 2408 2409 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2410 2411 if (upipe->u.ctl.length != 0) 2412 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2413 2414 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2415 } 2416 2417 /* Deallocate request data structures */ 2418 void 2419 uhci_device_bulk_done(xfer) 2420 usbd_xfer_handle xfer; 2421 { 2422 uhci_intr_info_t *ii = xfer->hcpriv; 2423 uhci_softc_t *sc = ii->sc; 2424 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2425 2426 LIST_REMOVE(ii, list); /* remove from active list */ 2427 2428 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2429 2430 uhci_free_std_chain(sc, ii->stdstart, 0); 2431 2432 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2433 } 2434 2435 /* Add interrupt QH, called with vflock. */ 2436 void 2437 uhci_add_intr(sc, n, sqh) 2438 uhci_softc_t *sc; 2439 int n; 2440 uhci_soft_qh_t *sqh; 2441 { 2442 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2443 uhci_soft_qh_t *eqh; 2444 2445 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2446 eqh = vf->eqh; 2447 sqh->hlink = eqh->hlink; 2448 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2449 eqh->hlink = sqh; 2450 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2451 vf->eqh = sqh; 2452 vf->bandwidth++; 2453 } 2454 2455 /* Remove interrupt QH, called with vflock. */ 2456 void 2457 uhci_remove_intr(sc, n, sqh) 2458 uhci_softc_t *sc; 2459 int n; 2460 uhci_soft_qh_t *sqh; 2461 { 2462 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2463 uhci_soft_qh_t *pqh; 2464 2465 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2466 2467 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2468 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2469 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2470 DPRINTF(("uhci_remove_intr: QH not found\n")); 2471 return; 2472 } 2473 #else 2474 ; 2475 #endif 2476 pqh->hlink = sqh->hlink; 2477 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2478 if (vf->eqh == sqh) 2479 vf->eqh = pqh; 2480 vf->bandwidth--; 2481 } 2482 2483 usbd_status 2484 uhci_device_setintr(sc, upipe, ival) 2485 uhci_softc_t *sc; 2486 struct uhci_pipe *upipe; 2487 int ival; 2488 { 2489 uhci_soft_qh_t *sqh; 2490 int i, npoll, s; 2491 u_int bestbw, bw, bestoffs, offs; 2492 2493 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2494 if (ival == 0) { 2495 printf("uhci_setintr: 0 interval\n"); 2496 return (USBD_INVAL); 2497 } 2498 2499 if (ival > UHCI_VFRAMELIST_COUNT) 2500 ival = UHCI_VFRAMELIST_COUNT; 2501 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2502 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2503 2504 upipe->u.intr.npoll = npoll; 2505 upipe->u.intr.qhs = 2506 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2507 2508 /* 2509 * Figure out which offset in the schedule that has most 2510 * bandwidth left over. 2511 */ 2512 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2513 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2514 for (bw = i = 0; i < npoll; i++) 2515 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2516 if (bw < bestbw) { 2517 bestbw = bw; 2518 bestoffs = offs; 2519 } 2520 } 2521 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2522 2523 upipe->iinfo->stdstart = 0; 2524 for(i = 0; i < npoll; i++) { 2525 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2526 sqh->elink = 0; 2527 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2528 sqh->pos = MOD(i * ival + bestoffs); 2529 sqh->intr_info = upipe->iinfo; 2530 } 2531 #undef MOD 2532 2533 s = splusb(); 2534 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2535 splx(s); 2536 2537 uhci_lock_frames(sc); 2538 /* Enter QHs into the controller data structures. */ 2539 for(i = 0; i < npoll; i++) 2540 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2541 upipe->u.intr.qhs[i]); 2542 uhci_unlock_frames(sc); 2543 2544 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2545 return (USBD_NORMAL_COMPLETION); 2546 } 2547 2548 /* Open a new pipe. */ 2549 usbd_status 2550 uhci_open(pipe) 2551 usbd_pipe_handle pipe; 2552 { 2553 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2554 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2555 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2556 usbd_status err; 2557 int ival; 2558 2559 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2560 pipe, pipe->device->address, 2561 ed->bEndpointAddress, sc->sc_addr)); 2562 if (pipe->device->address == sc->sc_addr) { 2563 switch (ed->bEndpointAddress) { 2564 case USB_CONTROL_ENDPOINT: 2565 pipe->methods = &uhci_root_ctrl_methods; 2566 break; 2567 case UE_DIR_IN | UHCI_INTR_ENDPT: 2568 pipe->methods = &uhci_root_intr_methods; 2569 break; 2570 default: 2571 return (USBD_INVAL); 2572 } 2573 } else { 2574 upipe->iinfo = uhci_alloc_intr_info(sc); 2575 if (upipe->iinfo == 0) 2576 return (USBD_NOMEM); 2577 switch (ed->bmAttributes & UE_XFERTYPE) { 2578 case UE_CONTROL: 2579 pipe->methods = &uhci_device_ctrl_methods; 2580 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2581 if (upipe->u.ctl.sqh == NULL) 2582 goto bad; 2583 upipe->u.ctl.setup = uhci_alloc_std(sc); 2584 if (upipe->u.ctl.setup == NULL) { 2585 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2586 goto bad; 2587 } 2588 upipe->u.ctl.stat = uhci_alloc_std(sc); 2589 if (upipe->u.ctl.stat == NULL) { 2590 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2591 uhci_free_std(sc, upipe->u.ctl.setup); 2592 goto bad; 2593 } 2594 err = usb_allocmem(&sc->sc_bus, 2595 sizeof(usb_device_request_t), 2596 0, &upipe->u.ctl.reqdma); 2597 if (err) { 2598 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2599 uhci_free_std(sc, upipe->u.ctl.setup); 2600 uhci_free_std(sc, upipe->u.ctl.stat); 2601 goto bad; 2602 } 2603 break; 2604 case UE_INTERRUPT: 2605 pipe->methods = &uhci_device_intr_methods; 2606 ival = pipe->interval; 2607 if (ival == USBD_DEFAULT_INTERVAL) 2608 ival = ed->bInterval; 2609 return (uhci_device_setintr(sc, upipe, ival)); 2610 case UE_ISOCHRONOUS: 2611 pipe->methods = &uhci_device_isoc_methods; 2612 return (uhci_setup_isoc(pipe)); 2613 case UE_BULK: 2614 pipe->methods = &uhci_device_bulk_methods; 2615 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2616 if (upipe->u.bulk.sqh == NULL) 2617 goto bad; 2618 break; 2619 } 2620 } 2621 return (USBD_NORMAL_COMPLETION); 2622 2623 bad: 2624 uhci_free_intr_info(upipe->iinfo); 2625 return (USBD_NOMEM); 2626 } 2627 2628 /* 2629 * Data structures and routines to emulate the root hub. 2630 */ 2631 usb_device_descriptor_t uhci_devd = { 2632 USB_DEVICE_DESCRIPTOR_SIZE, 2633 UDESC_DEVICE, /* type */ 2634 {0x00, 0x01}, /* USB version */ 2635 UCLASS_HUB, /* class */ 2636 USUBCLASS_HUB, /* subclass */ 2637 0, /* protocol */ 2638 64, /* max packet */ 2639 {0},{0},{0x00,0x01}, /* device id */ 2640 1,2,0, /* string indicies */ 2641 1 /* # of configurations */ 2642 }; 2643 2644 usb_config_descriptor_t uhci_confd = { 2645 USB_CONFIG_DESCRIPTOR_SIZE, 2646 UDESC_CONFIG, 2647 {USB_CONFIG_DESCRIPTOR_SIZE + 2648 USB_INTERFACE_DESCRIPTOR_SIZE + 2649 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2650 1, 2651 1, 2652 0, 2653 UC_SELF_POWERED, 2654 0 /* max power */ 2655 }; 2656 2657 usb_interface_descriptor_t uhci_ifcd = { 2658 USB_INTERFACE_DESCRIPTOR_SIZE, 2659 UDESC_INTERFACE, 2660 0, 2661 0, 2662 1, 2663 UCLASS_HUB, 2664 USUBCLASS_HUB, 2665 0, 2666 0 2667 }; 2668 2669 usb_endpoint_descriptor_t uhci_endpd = { 2670 USB_ENDPOINT_DESCRIPTOR_SIZE, 2671 UDESC_ENDPOINT, 2672 UE_DIR_IN | UHCI_INTR_ENDPT, 2673 UE_INTERRUPT, 2674 {8}, 2675 255 2676 }; 2677 2678 usb_hub_descriptor_t uhci_hubd_piix = { 2679 USB_HUB_DESCRIPTOR_SIZE, 2680 UDESC_HUB, 2681 2, 2682 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2683 50, /* power on to power good */ 2684 0, 2685 { 0x00 }, /* both ports are removable */ 2686 }; 2687 2688 int 2689 uhci_str(p, l, s) 2690 usb_string_descriptor_t *p; 2691 int l; 2692 char *s; 2693 { 2694 int i; 2695 2696 if (l == 0) 2697 return (0); 2698 p->bLength = 2 * strlen(s) + 2; 2699 if (l == 1) 2700 return (1); 2701 p->bDescriptorType = UDESC_STRING; 2702 l -= 2; 2703 for (i = 0; s[i] && l > 1; i++, l -= 2) 2704 USETW2(p->bString[i], 0, s[i]); 2705 return (2*i+2); 2706 } 2707 2708 /* 2709 * Simulate a hardware hub by handling all the necessary requests. 2710 */ 2711 usbd_status 2712 uhci_root_ctrl_transfer(xfer) 2713 usbd_xfer_handle xfer; 2714 { 2715 usbd_status err; 2716 2717 /* Insert last in queue. */ 2718 err = usb_insert_transfer(xfer); 2719 if (err) 2720 return (err); 2721 2722 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2723 * start first 2724 */ 2725 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2726 } 2727 2728 usbd_status 2729 uhci_root_ctrl_start(xfer) 2730 usbd_xfer_handle xfer; 2731 { 2732 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2733 usb_device_request_t *req; 2734 void *buf = NULL; 2735 int port, x; 2736 int s, len, value, index, status, change, l, totlen = 0; 2737 usb_port_status_t ps; 2738 usbd_status err; 2739 2740 if (sc->sc_dying) 2741 return (USBD_IOERROR); 2742 2743 #ifdef DIAGNOSTIC 2744 if (!(xfer->rqflags & URQ_REQUEST)) 2745 panic("uhci_root_ctrl_transfer: not a request\n"); 2746 #endif 2747 req = &xfer->request; 2748 2749 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2750 req->bmRequestType, req->bRequest)); 2751 2752 len = UGETW(req->wLength); 2753 value = UGETW(req->wValue); 2754 index = UGETW(req->wIndex); 2755 2756 if (len != 0) 2757 buf = KERNADDR(&xfer->dmabuf); 2758 2759 #define C(x,y) ((x) | ((y) << 8)) 2760 switch(C(req->bRequest, req->bmRequestType)) { 2761 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2762 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2763 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2764 /* 2765 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2766 * for the integrated root hub. 2767 */ 2768 break; 2769 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2770 if (len > 0) { 2771 *(u_int8_t *)buf = sc->sc_conf; 2772 totlen = 1; 2773 } 2774 break; 2775 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2776 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2777 switch(value >> 8) { 2778 case UDESC_DEVICE: 2779 if ((value & 0xff) != 0) { 2780 err = USBD_IOERROR; 2781 goto ret; 2782 } 2783 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2784 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2785 memcpy(buf, &uhci_devd, l); 2786 break; 2787 case UDESC_CONFIG: 2788 if ((value & 0xff) != 0) { 2789 err = USBD_IOERROR; 2790 goto ret; 2791 } 2792 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2793 memcpy(buf, &uhci_confd, l); 2794 buf = (char *)buf + l; 2795 len -= l; 2796 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2797 totlen += l; 2798 memcpy(buf, &uhci_ifcd, l); 2799 buf = (char *)buf + l; 2800 len -= l; 2801 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2802 totlen += l; 2803 memcpy(buf, &uhci_endpd, l); 2804 break; 2805 case UDESC_STRING: 2806 if (len == 0) 2807 break; 2808 *(u_int8_t *)buf = 0; 2809 totlen = 1; 2810 switch (value & 0xff) { 2811 case 1: /* Vendor */ 2812 totlen = uhci_str(buf, len, sc->sc_vendor); 2813 break; 2814 case 2: /* Product */ 2815 totlen = uhci_str(buf, len, "UHCI root hub"); 2816 break; 2817 } 2818 break; 2819 default: 2820 err = USBD_IOERROR; 2821 goto ret; 2822 } 2823 break; 2824 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2825 if (len > 0) { 2826 *(u_int8_t *)buf = 0; 2827 totlen = 1; 2828 } 2829 break; 2830 case C(UR_GET_STATUS, UT_READ_DEVICE): 2831 if (len > 1) { 2832 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2833 totlen = 2; 2834 } 2835 break; 2836 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2837 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2838 if (len > 1) { 2839 USETW(((usb_status_t *)buf)->wStatus, 0); 2840 totlen = 2; 2841 } 2842 break; 2843 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2844 if (value >= USB_MAX_DEVICES) { 2845 err = USBD_IOERROR; 2846 goto ret; 2847 } 2848 sc->sc_addr = value; 2849 break; 2850 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2851 if (value != 0 && value != 1) { 2852 err = USBD_IOERROR; 2853 goto ret; 2854 } 2855 sc->sc_conf = value; 2856 break; 2857 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2858 break; 2859 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2860 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2861 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2862 err = USBD_IOERROR; 2863 goto ret; 2864 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2865 break; 2866 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2867 break; 2868 /* Hub requests */ 2869 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2870 break; 2871 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2872 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2873 "port=%d feature=%d\n", 2874 index, value)); 2875 if (index == 1) 2876 port = UHCI_PORTSC1; 2877 else if (index == 2) 2878 port = UHCI_PORTSC2; 2879 else { 2880 err = USBD_IOERROR; 2881 goto ret; 2882 } 2883 switch(value) { 2884 case UHF_PORT_ENABLE: 2885 x = UREAD2(sc, port); 2886 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2887 break; 2888 case UHF_PORT_SUSPEND: 2889 x = UREAD2(sc, port); 2890 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2891 break; 2892 case UHF_PORT_RESET: 2893 x = UREAD2(sc, port); 2894 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2895 break; 2896 case UHF_C_PORT_CONNECTION: 2897 x = UREAD2(sc, port); 2898 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2899 break; 2900 case UHF_C_PORT_ENABLE: 2901 x = UREAD2(sc, port); 2902 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2903 break; 2904 case UHF_C_PORT_OVER_CURRENT: 2905 x = UREAD2(sc, port); 2906 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2907 break; 2908 case UHF_C_PORT_RESET: 2909 sc->sc_isreset = 0; 2910 err = USBD_NORMAL_COMPLETION; 2911 goto ret; 2912 case UHF_PORT_CONNECTION: 2913 case UHF_PORT_OVER_CURRENT: 2914 case UHF_PORT_POWER: 2915 case UHF_PORT_LOW_SPEED: 2916 case UHF_C_PORT_SUSPEND: 2917 default: 2918 err = USBD_IOERROR; 2919 goto ret; 2920 } 2921 break; 2922 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2923 if (index == 1) 2924 port = UHCI_PORTSC1; 2925 else if (index == 2) 2926 port = UHCI_PORTSC2; 2927 else { 2928 err = USBD_IOERROR; 2929 goto ret; 2930 } 2931 if (len > 0) { 2932 *(u_int8_t *)buf = 2933 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2934 UHCI_PORTSC_LS_SHIFT; 2935 totlen = 1; 2936 } 2937 break; 2938 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2939 if (value != 0) { 2940 err = USBD_IOERROR; 2941 goto ret; 2942 } 2943 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2944 totlen = l; 2945 memcpy(buf, &uhci_hubd_piix, l); 2946 break; 2947 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2948 if (len != 4) { 2949 err = USBD_IOERROR; 2950 goto ret; 2951 } 2952 memset(buf, 0, len); 2953 totlen = len; 2954 break; 2955 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2956 if (index == 1) 2957 port = UHCI_PORTSC1; 2958 else if (index == 2) 2959 port = UHCI_PORTSC2; 2960 else { 2961 err = USBD_IOERROR; 2962 goto ret; 2963 } 2964 if (len != 4) { 2965 err = USBD_IOERROR; 2966 goto ret; 2967 } 2968 x = UREAD2(sc, port); 2969 status = change = 0; 2970 if (x & UHCI_PORTSC_CCS ) 2971 status |= UPS_CURRENT_CONNECT_STATUS; 2972 if (x & UHCI_PORTSC_CSC ) 2973 change |= UPS_C_CONNECT_STATUS; 2974 if (x & UHCI_PORTSC_PE ) 2975 status |= UPS_PORT_ENABLED; 2976 if (x & UHCI_PORTSC_POEDC) 2977 change |= UPS_C_PORT_ENABLED; 2978 if (x & UHCI_PORTSC_OCI ) 2979 status |= UPS_OVERCURRENT_INDICATOR; 2980 if (x & UHCI_PORTSC_OCIC ) 2981 change |= UPS_C_OVERCURRENT_INDICATOR; 2982 if (x & UHCI_PORTSC_SUSP ) 2983 status |= UPS_SUSPEND; 2984 if (x & UHCI_PORTSC_LSDA ) 2985 status |= UPS_LOW_SPEED; 2986 status |= UPS_PORT_POWER; 2987 if (sc->sc_isreset) 2988 change |= UPS_C_PORT_RESET; 2989 USETW(ps.wPortStatus, status); 2990 USETW(ps.wPortChange, change); 2991 l = min(len, sizeof ps); 2992 memcpy(buf, &ps, l); 2993 totlen = l; 2994 break; 2995 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2996 err = USBD_IOERROR; 2997 goto ret; 2998 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2999 break; 3000 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3001 if (index == 1) 3002 port = UHCI_PORTSC1; 3003 else if (index == 2) 3004 port = UHCI_PORTSC2; 3005 else { 3006 err = USBD_IOERROR; 3007 goto ret; 3008 } 3009 switch(value) { 3010 case UHF_PORT_ENABLE: 3011 x = UREAD2(sc, port); 3012 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3013 break; 3014 case UHF_PORT_SUSPEND: 3015 x = UREAD2(sc, port); 3016 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3017 break; 3018 case UHF_PORT_RESET: 3019 x = UREAD2(sc, port); 3020 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3021 usb_delay_ms(&sc->sc_bus, 10); 3022 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3023 delay(100); 3024 x = UREAD2(sc, port); 3025 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3026 delay(100); 3027 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3028 index, UREAD2(sc, port))); 3029 sc->sc_isreset = 1; 3030 break; 3031 case UHF_C_PORT_CONNECTION: 3032 case UHF_C_PORT_ENABLE: 3033 case UHF_C_PORT_OVER_CURRENT: 3034 case UHF_PORT_CONNECTION: 3035 case UHF_PORT_OVER_CURRENT: 3036 case UHF_PORT_POWER: 3037 case UHF_PORT_LOW_SPEED: 3038 case UHF_C_PORT_SUSPEND: 3039 case UHF_C_PORT_RESET: 3040 default: 3041 err = USBD_IOERROR; 3042 goto ret; 3043 } 3044 break; 3045 default: 3046 err = USBD_IOERROR; 3047 goto ret; 3048 } 3049 xfer->actlen = totlen; 3050 err = USBD_NORMAL_COMPLETION; 3051 ret: 3052 xfer->status = err; 3053 xfer->hcpriv = 0; 3054 s = splusb(); 3055 usb_transfer_complete(xfer); 3056 splx(s); 3057 return (USBD_IN_PROGRESS); 3058 } 3059 3060 /* Abort a root control request. */ 3061 void 3062 uhci_root_ctrl_abort(xfer) 3063 usbd_xfer_handle xfer; 3064 { 3065 /* Nothing to do, all transfers are synchronous. */ 3066 } 3067 3068 /* Close the root pipe. */ 3069 void 3070 uhci_root_ctrl_close(pipe) 3071 usbd_pipe_handle pipe; 3072 { 3073 DPRINTF(("uhci_root_ctrl_close\n")); 3074 } 3075 3076 /* Abort a root interrupt request. */ 3077 void 3078 uhci_root_intr_abort(xfer) 3079 usbd_xfer_handle xfer; 3080 { 3081 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3082 3083 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3084 sc->sc_has_timo = NULL; 3085 3086 if (xfer->pipe->intrxfer == xfer) { 3087 DPRINTF(("uhci_root_intr_abort: remove\n")); 3088 xfer->pipe->intrxfer = 0; 3089 } 3090 xfer->status = USBD_CANCELLED; 3091 usb_transfer_complete(xfer); 3092 } 3093 3094 usbd_status 3095 uhci_root_intr_transfer(xfer) 3096 usbd_xfer_handle xfer; 3097 { 3098 usbd_status err; 3099 3100 /* Insert last in queue. */ 3101 err = usb_insert_transfer(xfer); 3102 if (err) 3103 return (err); 3104 3105 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3106 * start first 3107 */ 3108 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3109 } 3110 3111 /* Start a transfer on the root interrupt pipe */ 3112 usbd_status 3113 uhci_root_intr_start(xfer) 3114 usbd_xfer_handle xfer; 3115 { 3116 usbd_pipe_handle pipe = xfer->pipe; 3117 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3118 3119 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3120 xfer, xfer->length, xfer->flags)); 3121 3122 if (sc->sc_dying) 3123 return (USBD_IOERROR); 3124 3125 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3126 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3127 sc->sc_has_timo = xfer; 3128 return (USBD_IN_PROGRESS); 3129 } 3130 3131 /* Close the root interrupt pipe. */ 3132 void 3133 uhci_root_intr_close(pipe) 3134 usbd_pipe_handle pipe; 3135 { 3136 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3137 3138 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3139 sc->sc_has_timo = NULL; 3140 DPRINTF(("uhci_root_intr_close\n")); 3141 } 3142
Indexes created Tue Sep 30 17:09:57 GMT 2025