uhci.c revision 1.85
1 /* $NetBSD: uhci.c,v 1.85 2000/02/22 11:30:55 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 static void uhci_softintr __P((struct usbd_bus *)); 240 241 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 242 243 static void uhci_add_intr __P((uhci_softc_t *, int, 244 uhci_soft_qh_t *)); 245 static void uhci_remove_intr __P((uhci_softc_t *, int, 246 uhci_soft_qh_t *)); 247 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 248 struct uhci_pipe *pipe, int ival)); 249 250 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 251 static void uhci_noop __P((usbd_pipe_handle pipe)); 252 253 #ifdef UHCI_DEBUG 254 static void uhci_dumpregs __P((uhci_softc_t *)); 255 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 256 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 257 static void uhci_dump_tds __P((uhci_soft_td_t *)); 258 static void uhci_dump_td __P((uhci_soft_td_t *)); 259 #endif 260 261 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 262 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 263 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 264 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 265 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 266 267 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 268 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 269 270 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 271 272 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 273 274 #define UHCI_INTR_ENDPT 1 275 276 struct usbd_bus_methods uhci_bus_methods = { 277 uhci_open, 278 uhci_softintr, 279 uhci_poll, 280 uhci_allocm, 281 uhci_freem, 282 uhci_allocx, 283 uhci_freex, 284 }; 285 286 struct usbd_pipe_methods uhci_root_ctrl_methods = { 287 uhci_root_ctrl_transfer, 288 uhci_root_ctrl_start, 289 uhci_root_ctrl_abort, 290 uhci_root_ctrl_close, 291 uhci_noop, 292 uhci_root_ctrl_done, 293 }; 294 295 struct usbd_pipe_methods uhci_root_intr_methods = { 296 uhci_root_intr_transfer, 297 uhci_root_intr_start, 298 uhci_root_intr_abort, 299 uhci_root_intr_close, 300 uhci_noop, 301 uhci_root_intr_done, 302 }; 303 304 struct usbd_pipe_methods uhci_device_ctrl_methods = { 305 uhci_device_ctrl_transfer, 306 uhci_device_ctrl_start, 307 uhci_device_ctrl_abort, 308 uhci_device_ctrl_close, 309 uhci_noop, 310 uhci_device_ctrl_done, 311 }; 312 313 struct usbd_pipe_methods uhci_device_intr_methods = { 314 uhci_device_intr_transfer, 315 uhci_device_intr_start, 316 uhci_device_intr_abort, 317 uhci_device_intr_close, 318 uhci_device_clear_toggle, 319 uhci_device_intr_done, 320 }; 321 322 struct usbd_pipe_methods uhci_device_bulk_methods = { 323 uhci_device_bulk_transfer, 324 uhci_device_bulk_start, 325 uhci_device_bulk_abort, 326 uhci_device_bulk_close, 327 uhci_device_clear_toggle, 328 uhci_device_bulk_done, 329 }; 330 331 struct usbd_pipe_methods uhci_device_isoc_methods = { 332 uhci_device_isoc_transfer, 333 uhci_device_isoc_start, 334 uhci_device_isoc_abort, 335 uhci_device_isoc_close, 336 uhci_noop, 337 uhci_device_isoc_done, 338 }; 339 340 void 341 uhci_busreset(sc) 342 uhci_softc_t *sc; 343 { 344 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 345 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 346 UHCICMD(sc, 0); /* do nothing */ 347 } 348 349 usbd_status 350 uhci_init(sc) 351 uhci_softc_t *sc; 352 { 353 usbd_status err; 354 int i, j; 355 uhci_soft_qh_t *csqh, *bsqh, *sqh; 356 uhci_soft_td_t *std; 357 358 DPRINTFN(1,("uhci_init: start\n")); 359 360 #ifdef UHCI_DEBUG 361 if (uhcidebug > 2) 362 uhci_dumpregs(sc); 363 #endif 364 365 uhci_run(sc, 0); /* stop the controller */ 366 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 367 368 uhci_busreset(sc); 369 370 /* Allocate and initialize real frame array. */ 371 err = usb_allocmem(&sc->sc_bus, 372 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 373 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 374 if (err) 375 return (err); 376 sc->sc_pframes = KERNADDR(&sc->sc_dma); 377 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 378 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 379 380 /* Allocate the dummy QH where bulk traffic will be queued. */ 381 bsqh = uhci_alloc_sqh(sc); 382 if (bsqh == NULL) 383 return (USBD_NOMEM); 384 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 385 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 386 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 387 388 /* Allocate the dummy QH where control traffic will be queued. */ 389 csqh = uhci_alloc_sqh(sc); 390 if (csqh == NULL) 391 return (USBD_NOMEM); 392 csqh->hlink = bsqh; 393 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 394 csqh->qh.qh_elink = LE(UHCI_PTR_T); 395 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 396 397 /* 398 * Make all (virtual) frame list pointers point to the interrupt 399 * queue heads and the interrupt queue heads at the control 400 * queue head and point the physical frame list to the virtual. 401 */ 402 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 403 std = uhci_alloc_std(sc); 404 sqh = uhci_alloc_sqh(sc); 405 if (std == NULL || sqh == NULL) 406 return (USBD_NOMEM); 407 std->link.sqh = sqh; 408 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 409 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 410 std->td.td_token = LE(0); 411 std->td.td_buffer = LE(0); 412 sqh->hlink = csqh; 413 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 414 sqh->elink = 0; 415 sqh->qh.qh_elink = LE(UHCI_PTR_T); 416 sc->sc_vframes[i].htd = std; 417 sc->sc_vframes[i].etd = std; 418 sc->sc_vframes[i].hqh = sqh; 419 sc->sc_vframes[i].eqh = sqh; 420 for (j = i; 421 j < UHCI_FRAMELIST_COUNT; 422 j += UHCI_VFRAMELIST_COUNT) 423 sc->sc_pframes[j] = LE(std->physaddr); 424 } 425 426 LIST_INIT(&sc->sc_intrhead); 427 428 SIMPLEQ_INIT(&sc->sc_free_xfers); 429 430 /* Set up the bus struct. */ 431 sc->sc_bus.methods = &uhci_bus_methods; 432 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 433 434 sc->sc_suspend = PWR_RESUME; 435 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 436 437 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 438 439 DPRINTFN(1,("uhci_init: enabling\n")); 440 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 441 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 442 443 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 444 445 return (uhci_run(sc, 1)); /* and here we go... */ 446 } 447 448 #if defined(__NetBSD__) || defined(__OpenBSD__) 449 int 450 uhci_activate(self, act) 451 device_ptr_t self; 452 enum devact act; 453 { 454 struct uhci_softc *sc = (struct uhci_softc *)self; 455 int rv = 0; 456 457 switch (act) { 458 case DVACT_ACTIVATE: 459 return (EOPNOTSUPP); 460 break; 461 462 case DVACT_DEACTIVATE: 463 if (sc->sc_child != NULL) 464 rv = config_deactivate(sc->sc_child); 465 break; 466 } 467 return (rv); 468 } 469 470 int 471 uhci_detach(sc, flags) 472 struct uhci_softc *sc; 473 int flags; 474 { 475 usbd_xfer_handle xfer; 476 int rv = 0; 477 478 if (sc->sc_child != NULL) 479 rv = config_detach(sc->sc_child, flags); 480 481 if (rv != 0) 482 return (rv); 483 484 powerhook_disestablish(sc->sc_powerhook); 485 shutdownhook_disestablish(sc->sc_shutdownhook); 486 487 /* Free all xfers associated with this HC. */ 488 for (;;) { 489 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 490 if (xfer == NULL) 491 break; 492 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 493 free(xfer, M_USB); 494 } 495 496 /* XXX free other data structures XXX */ 497 498 return (rv); 499 } 500 #endif 501 502 usbd_status 503 uhci_allocm(bus, dma, size) 504 struct usbd_bus *bus; 505 usb_dma_t *dma; 506 u_int32_t size; 507 { 508 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 509 dma)); 510 } 511 512 void 513 uhci_freem(bus, dma) 514 struct usbd_bus *bus; 515 usb_dma_t *dma; 516 { 517 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 518 } 519 520 usbd_xfer_handle 521 uhci_allocx(bus) 522 struct usbd_bus *bus; 523 { 524 struct uhci_softc *sc = (struct uhci_softc *)bus; 525 usbd_xfer_handle xfer; 526 527 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 528 if (xfer != NULL) 529 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 530 else 531 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 532 if (xfer != NULL) 533 memset(xfer, 0, sizeof *xfer); 534 return (xfer); 535 } 536 537 void 538 uhci_freex(bus, xfer) 539 struct usbd_bus *bus; 540 usbd_xfer_handle xfer; 541 { 542 struct uhci_softc *sc = (struct uhci_softc *)bus; 543 544 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 545 } 546 547 /* 548 * Shut down the controller when the system is going down. 549 */ 550 void 551 uhci_shutdown(v) 552 void *v; 553 { 554 uhci_softc_t *sc = v; 555 556 DPRINTF(("uhci_shutdown: stopping the HC\n")); 557 uhci_run(sc, 0); /* stop the controller */ 558 } 559 560 /* 561 * Handle suspend/resume. 562 * 563 * We need to switch to polling mode here, because this routine is 564 * called from an intterupt context. This is all right since we 565 * are almost suspended anyway. 566 */ 567 void 568 uhci_power(why, v) 569 int why; 570 void *v; 571 { 572 uhci_softc_t *sc = v; 573 int cmd; 574 int s; 575 576 s = splusb(); 577 cmd = UREAD2(sc, UHCI_CMD); 578 579 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 580 sc, why, sc->sc_suspend, cmd)); 581 582 if (why != PWR_RESUME) { 583 #ifdef UHCI_DEBUG 584 if (uhcidebug > 2) 585 uhci_dumpregs(sc); 586 #endif 587 if (sc->sc_has_timo != NULL) 588 usb_untimeout(uhci_timo, sc->sc_has_timo, 589 sc->sc_has_timo->timo_handle); 590 sc->sc_bus.use_polling++; 591 uhci_run(sc, 0); /* stop the controller */ 592 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 593 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 594 sc->sc_suspend = why; 595 sc->sc_bus.use_polling--; 596 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 597 } else { 598 /* 599 * XXX We should really do much more here in case the 600 * controller registers have been lost and BIOS has 601 * not restored them. 602 */ 603 #ifdef DIAGNOSTIC 604 if (sc->sc_suspend == PWR_RESUME) 605 printf("uhci_power: weird, resume without suspend.\n"); 606 #endif 607 sc->sc_bus.use_polling++; 608 sc->sc_suspend = why; 609 if (cmd & UHCI_CMD_RS) 610 uhci_run(sc, 0); /* in case BIOS has started it */ 611 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 612 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 613 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 614 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 615 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 616 uhci_run(sc, 1); /* and start traffic again */ 617 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 618 sc->sc_bus.use_polling--; 619 if (sc->sc_has_timo != NULL) 620 usb_timeout(uhci_timo, sc->sc_has_timo, 621 sc->sc_ival, sc->sc_has_timo->timo_handle); 622 #ifdef UHCI_DEBUG 623 if (uhcidebug > 2) 624 uhci_dumpregs(sc); 625 #endif 626 } 627 splx(s); 628 } 629 630 #ifdef UHCI_DEBUG 631 static void 632 uhci_dumpregs(sc) 633 uhci_softc_t *sc; 634 { 635 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 636 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 637 USBDEVNAME(sc->sc_bus.bdev), 638 UREAD2(sc, UHCI_CMD), 639 UREAD2(sc, UHCI_STS), 640 UREAD2(sc, UHCI_INTR), 641 UREAD2(sc, UHCI_FRNUM), 642 UREAD4(sc, UHCI_FLBASEADDR), 643 UREAD1(sc, UHCI_SOF), 644 UREAD2(sc, UHCI_PORTSC1), 645 UREAD2(sc, UHCI_PORTSC2))); 646 } 647 648 void 649 uhci_dump_td(p) 650 uhci_soft_td_t *p; 651 { 652 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 653 "token=0x%08lx buffer=0x%08lx\n", 654 p, (long)p->physaddr, 655 (long)LE(p->td.td_link), 656 (long)LE(p->td.td_status), 657 (long)LE(p->td.td_token), 658 (long)LE(p->td.td_buffer))); 659 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 660 "D=%d,maxlen=%d\n", 661 (int)LE(p->td.td_link), 662 "\20\1T\2Q\3VF", 663 (int)LE(p->td.td_status), 664 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 665 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 666 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 667 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 668 UHCI_TD_GET_PID(LE(p->td.td_token)), 669 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 670 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 671 UHCI_TD_GET_DT(LE(p->td.td_token)), 672 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 673 } 674 675 void 676 uhci_dump_qh(sqh) 677 uhci_soft_qh_t *sqh; 678 { 679 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 680 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 681 } 682 683 684 #if 0 685 void 686 uhci_dump() 687 { 688 uhci_softc_t *sc = uhci; 689 690 uhci_dumpregs(sc); 691 printf("intrs=%d\n", sc->sc_bus.no_intrs); 692 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 693 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 694 } 695 #endif 696 697 698 void 699 uhci_dump_qhs(sqh) 700 uhci_soft_qh_t *sqh; 701 { 702 uhci_dump_qh(sqh); 703 704 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 705 * Traverses sideways first, then down. 706 * 707 * QH1 708 * QH2 709 * No QH 710 * TD2.1 711 * TD2.2 712 * TD1.1 713 * etc. 714 * 715 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 716 */ 717 718 719 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 720 uhci_dump_qhs(sqh->hlink); 721 else 722 DPRINTF(("No QH\n")); 723 724 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 725 uhci_dump_tds(sqh->elink); 726 else 727 DPRINTF(("No TD\n")); 728 } 729 730 void 731 uhci_dump_tds(std) 732 uhci_soft_td_t *std; 733 { 734 uhci_soft_td_t *td; 735 736 for(td = std; td != NULL; td = td->link.std) { 737 uhci_dump_td(td); 738 739 /* Check whether the link pointer in this TD marks 740 * the link pointer as end of queue. This avoids 741 * printing the free list in case the queue/TD has 742 * already been moved there (seatbelt). 743 */ 744 if (td->td.td_link & UHCI_PTR_T || 745 td->td.td_link == 0) 746 break; 747 } 748 } 749 #endif 750 751 /* 752 * This routine is executed periodically and simulates interrupts 753 * from the root controller interrupt pipe for port status change. 754 */ 755 void 756 uhci_timo(addr) 757 void *addr; 758 { 759 usbd_xfer_handle xfer = addr; 760 usbd_pipe_handle pipe = xfer->pipe; 761 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 762 int s; 763 u_char *p; 764 765 DPRINTFN(20, ("uhci_timo\n")); 766 767 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 768 769 p = KERNADDR(&xfer->dmabuf); 770 p[0] = 0; 771 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 772 p[0] |= 1<<1; 773 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 774 p[0] |= 1<<2; 775 if (p[0] == 0) 776 /* No change, try again in a while */ 777 return; 778 779 xfer->actlen = 1; 780 xfer->status = USBD_NORMAL_COMPLETION; 781 s = splusb(); 782 xfer->hcpriv = 0; 783 xfer->device->bus->intr_context++; 784 usb_transfer_complete(xfer); 785 xfer->device->bus->intr_context--; 786 splx(s); 787 } 788 789 void 790 uhci_root_intr_done(xfer) 791 usbd_xfer_handle xfer; 792 { 793 } 794 795 void 796 uhci_root_ctrl_done(xfer) 797 usbd_xfer_handle xfer; 798 { 799 } 800 801 void 802 uhci_lock_frames(sc) 803 uhci_softc_t *sc; 804 { 805 int s = splusb(); 806 807 while (sc->sc_vflock & UHCI_HAS_LOCK) { 808 sc->sc_vflock |= UHCI_WANT_LOCK; 809 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 810 } 811 sc->sc_vflock = UHCI_HAS_LOCK; 812 splx(s); 813 } 814 815 void 816 uhci_unlock_frames(sc) 817 uhci_softc_t *sc; 818 { 819 int s = splusb(); 820 821 sc->sc_vflock &= ~UHCI_HAS_LOCK; 822 if (sc->sc_vflock & UHCI_WANT_LOCK) 823 wakeup(&sc->sc_vflock); 824 splx(s); 825 } 826 827 /* 828 * Allocate an interrupt information struct. A free list is kept 829 * for fast allocation. 830 */ 831 uhci_intr_info_t * 832 uhci_alloc_intr_info(sc) 833 uhci_softc_t *sc; 834 { 835 uhci_intr_info_t *ii; 836 837 ii = LIST_FIRST(&uhci_ii_free); 838 if (ii) 839 LIST_REMOVE(ii, list); 840 else { 841 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 842 } 843 ii->sc = sc; 844 #if defined(__FreeBSD__) 845 callout_handle_init(&ii->timeout_handle); 846 #endif 847 848 return ii; 849 } 850 851 void 852 uhci_free_intr_info(ii) 853 uhci_intr_info_t *ii; 854 { 855 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 856 } 857 858 /* Add control QH, called at splusb(). */ 859 void 860 uhci_add_ctrl(sc, sqh) 861 uhci_softc_t *sc; 862 uhci_soft_qh_t *sqh; 863 { 864 uhci_soft_qh_t *eqh; 865 866 SPLUSBCHECK; 867 868 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 869 eqh = sc->sc_ctl_end; 870 sqh->hlink = eqh->hlink; 871 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 872 eqh->hlink = sqh; 873 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 874 sc->sc_ctl_end = sqh; 875 } 876 877 /* Remove control QH, called at splusb(). */ 878 void 879 uhci_remove_ctrl(sc, sqh) 880 uhci_softc_t *sc; 881 uhci_soft_qh_t *sqh; 882 { 883 uhci_soft_qh_t *pqh; 884 885 SPLUSBCHECK; 886 887 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 888 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 889 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 890 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 891 printf("uhci_remove_ctrl: QH not found\n"); 892 return; 893 } 894 #else 895 ; 896 #endif 897 pqh->hlink = sqh->hlink; 898 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 899 if (sc->sc_ctl_end == sqh) 900 sc->sc_ctl_end = pqh; 901 } 902 903 /* Add bulk QH, called at splusb(). */ 904 void 905 uhci_add_bulk(sc, sqh) 906 uhci_softc_t *sc; 907 uhci_soft_qh_t *sqh; 908 { 909 uhci_soft_qh_t *eqh; 910 911 SPLUSBCHECK; 912 913 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 914 eqh = sc->sc_bulk_end; 915 sqh->hlink = eqh->hlink; 916 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 917 eqh->hlink = sqh; 918 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 919 sc->sc_bulk_end = sqh; 920 } 921 922 /* Remove bulk QH, called at splusb(). */ 923 void 924 uhci_remove_bulk(sc, sqh) 925 uhci_softc_t *sc; 926 uhci_soft_qh_t *sqh; 927 { 928 uhci_soft_qh_t *pqh; 929 930 SPLUSBCHECK; 931 932 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 933 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 934 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 935 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 936 printf("uhci_remove_bulk: QH not found\n"); 937 return; 938 } 939 #else 940 ; 941 #endif 942 pqh->hlink = sqh->hlink; 943 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 944 if (sc->sc_bulk_end == sqh) 945 sc->sc_bulk_end = pqh; 946 } 947 948 int 949 uhci_intr(arg) 950 void *arg; 951 { 952 uhci_softc_t *sc = arg; 953 int status; 954 int ack; 955 956 #ifdef UHCI_DEBUG 957 if (uhcidebug > 15) { 958 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 959 uhci_dumpregs(sc); 960 } 961 #endif 962 963 status = UREAD2(sc, UHCI_STS); 964 if (status == 0) /* The interrupt was not for us. */ 965 return (0); 966 967 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 968 if (sc->sc_suspend != PWR_RESUME) 969 printf("uhci_intr: suspended sts=0x%x\n", status); 970 #endif 971 972 ack = 0; 973 if (status & UHCI_STS_USBINT) 974 ack |= UHCI_STS_USBINT; 975 if (status & UHCI_STS_USBEI) 976 ack |= UHCI_STS_USBEI; 977 if (status & UHCI_STS_RD) { 978 ack |= UHCI_STS_RD; 979 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 980 } 981 if (status & UHCI_STS_HSE) { 982 ack |= UHCI_STS_HSE; 983 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 984 } 985 if (status & UHCI_STS_HCPE) { 986 ack |= UHCI_STS_HCPE; 987 printf("%s: host controller process error\n", 988 USBDEVNAME(sc->sc_bus.bdev)); 989 } 990 if (status & UHCI_STS_HCH) { 991 /* no acknowledge needed */ 992 printf("%s: host controller halted\n", 993 USBDEVNAME(sc->sc_bus.bdev)); 994 sc->sc_dying = 1; 995 } 996 997 if (ack) /* acknowledge the ints */ 998 UWRITE2(sc, UHCI_STS, ack); 999 else /* nothing to acknowledge */ 1000 return (0); 1001 1002 sc->sc_bus.no_intrs++; 1003 usb_schedsoftintr(&sc->sc_bus); 1004 1005 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1006 1007 return (1); 1008 } 1009 1010 void 1011 uhci_softintr(bus) 1012 struct usbd_bus *bus; 1013 { 1014 uhci_softc_t *sc = (uhci_softc_t *)bus; 1015 uhci_intr_info_t *ii; 1016 1017 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1018 1019 sc->sc_bus.intr_context++; 1020 1021 /* 1022 * Interrupts on UHCI really suck. When the host controller 1023 * interrupts because a transfer is completed there is no 1024 * way of knowing which transfer it was. You can scan down 1025 * the TDs and QHs of the previous frame to limit the search, 1026 * but that assumes that the interrupt was not delayed by more 1027 * than 1 ms, which may not always be true (e.g. after debug 1028 * output on a slow console). 1029 * We scan all interrupt descriptors to see if any have 1030 * completed. 1031 */ 1032 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1033 uhci_check_intr(sc, ii); 1034 1035 sc->sc_bus.intr_context--; 1036 } 1037 1038 /* Check for an interrupt. */ 1039 void 1040 uhci_check_intr(sc, ii) 1041 uhci_softc_t *sc; 1042 uhci_intr_info_t *ii; 1043 { 1044 uhci_soft_td_t *std, *lstd; 1045 u_int32_t status; 1046 1047 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1048 #ifdef DIAGNOSTIC 1049 if (ii == NULL) { 1050 printf("uhci_check_intr: no ii? %p\n", ii); 1051 return; 1052 } 1053 #endif 1054 if (ii->stdstart == NULL) 1055 return; 1056 lstd = ii->stdend; 1057 #ifdef DIAGNOSTIC 1058 if (lstd == NULL) { 1059 printf("uhci_check_intr: std==0\n"); 1060 return; 1061 } 1062 #endif 1063 /* 1064 * If the last TD is still active we need to check whether there 1065 * is a an error somewhere in the middle, or whether there was a 1066 * short packet (SPD and not ACTIVE). 1067 */ 1068 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1069 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1070 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1071 status = LE(std->td.td_status); 1072 /* If there's an active TD the xfer isn't done. */ 1073 if (status & UHCI_TD_ACTIVE) 1074 break; 1075 /* Any kind of error makes the xfer done. */ 1076 if (status & UHCI_TD_STALLED) 1077 goto done; 1078 /* We want short packets, and it is short: it's done */ 1079 if ((status & UHCI_TD_SPD) && 1080 UHCI_TD_GET_ACTLEN(status) < 1081 UHCI_TD_GET_MAXLEN(LE(std->td.td_token))) 1082 goto done; 1083 } 1084 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1085 ii, ii->stdstart)); 1086 return; 1087 } 1088 done: 1089 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1090 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1091 uhci_idone(ii); 1092 } 1093 1094 /* Called at splusb() */ 1095 void 1096 uhci_idone(ii) 1097 uhci_intr_info_t *ii; 1098 { 1099 usbd_xfer_handle xfer = ii->xfer; 1100 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1101 uhci_soft_td_t *std; 1102 u_int32_t status = 0, nstatus; 1103 int actlen; 1104 1105 #ifdef DIAGNOSTIC 1106 { 1107 int s = splhigh(); 1108 if (ii->isdone) { 1109 splx(s); 1110 printf("uhci_idone: ii=%p is done!\n", ii); 1111 return; 1112 } 1113 ii->isdone = 1; 1114 splx(s); 1115 } 1116 #endif 1117 1118 if (xfer->status == USBD_CANCELLED || 1119 xfer->status == USBD_TIMEOUT) { 1120 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1121 return; 1122 } 1123 1124 if (xfer->nframes != 0) { 1125 /* Isoc transfer, do things differently. */ 1126 uhci_soft_td_t **stds = upipe->u.iso.stds; 1127 int i, n, nframes; 1128 1129 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1130 1131 nframes = xfer->nframes; 1132 actlen = 0; 1133 n = xfer->hcprivint; 1134 for (i = 0; i < nframes; i++) { 1135 std = stds[n]; 1136 #ifdef UHCI_DEBUG 1137 if (uhcidebug > 5) { 1138 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1139 uhci_dump_td(std); 1140 } 1141 #endif 1142 if (++n >= UHCI_VFRAMELIST_COUNT) 1143 n = 0; 1144 status = LE(std->td.td_status); 1145 actlen += UHCI_TD_GET_ACTLEN(status); 1146 } 1147 upipe->u.iso.inuse -= nframes; 1148 xfer->actlen = actlen; 1149 xfer->status = USBD_NORMAL_COMPLETION; 1150 xfer->hcpriv = ii; 1151 usb_transfer_complete(xfer); 1152 return; 1153 } 1154 1155 #ifdef UHCI_DEBUG 1156 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1157 ii, xfer, upipe)); 1158 if (uhcidebug > 10) 1159 uhci_dump_tds(ii->stdstart); 1160 #endif 1161 1162 /* The transfer is done, compute actual length and status. */ 1163 actlen = 0; 1164 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1165 nstatus = LE(std->td.td_status); 1166 if (nstatus & UHCI_TD_ACTIVE) 1167 break; 1168 1169 status = nstatus; 1170 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1171 actlen += UHCI_TD_GET_ACTLEN(status); 1172 } 1173 /* If there are left over TDs we need to update the toggle. */ 1174 if (std != NULL) 1175 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1176 1177 status &= UHCI_TD_ERROR; 1178 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1179 actlen, status)); 1180 xfer->actlen = actlen; 1181 if (status != 0) { 1182 DPRINTFN((status == UHCI_TD_STALLED)*10, 1183 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1184 "status 0x%b\n", 1185 xfer->pipe->device->address, 1186 xfer->pipe->endpoint->edesc->bEndpointAddress, 1187 (int)status, 1188 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1189 "STALLED\30ACTIVE")); 1190 if (status == UHCI_TD_STALLED) 1191 xfer->status = USBD_STALLED; 1192 else 1193 xfer->status = USBD_IOERROR; /* more info XXX */ 1194 } else { 1195 xfer->status = USBD_NORMAL_COMPLETION; 1196 } 1197 xfer->hcpriv = ii; 1198 usb_transfer_complete(xfer); 1199 } 1200 1201 /* 1202 * Called when a request does not complete. 1203 */ 1204 void 1205 uhci_timeout(addr) 1206 void *addr; 1207 { 1208 uhci_intr_info_t *ii = addr; 1209 1210 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1211 1212 #ifdef UHCI_DEBUG 1213 if (uhcidebug > 10) 1214 uhci_dump_tds(ii->stdstart); 1215 #endif 1216 1217 ii->xfer->device->bus->intr_context++; 1218 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1219 ii->xfer->device->bus->intr_context--; 1220 } 1221 1222 /* 1223 * Wait here until controller claims to have an interrupt. 1224 * Then call uhci_intr and return. Use timeout to avoid waiting 1225 * too long. 1226 * Only used during boot when interrupts are not enabled yet. 1227 */ 1228 void 1229 uhci_waitintr(sc, xfer) 1230 uhci_softc_t *sc; 1231 usbd_xfer_handle xfer; 1232 { 1233 int timo = xfer->timeout; 1234 uhci_intr_info_t *ii; 1235 1236 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1237 1238 xfer->status = USBD_IN_PROGRESS; 1239 for (; timo >= 0; timo--) { 1240 usb_delay_ms(&sc->sc_bus, 1); 1241 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1242 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1243 uhci_intr(sc); 1244 if (xfer->status != USBD_IN_PROGRESS) 1245 return; 1246 } 1247 } 1248 1249 /* Timeout */ 1250 DPRINTF(("uhci_waitintr: timeout\n")); 1251 for (ii = LIST_FIRST(&sc->sc_intrhead); 1252 ii != NULL && ii->xfer != xfer; 1253 ii = LIST_NEXT(ii, list)) 1254 ; 1255 #ifdef DIAGNOSTIC 1256 if (ii == NULL) 1257 panic("uhci_waitintr: lost intr_info\n"); 1258 #endif 1259 uhci_idone(ii); 1260 } 1261 1262 void 1263 uhci_poll(bus) 1264 struct usbd_bus *bus; 1265 { 1266 uhci_softc_t *sc = (uhci_softc_t *)bus; 1267 1268 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1269 uhci_intr(sc); 1270 } 1271 1272 #if 0 1273 void 1274 uhci_reset(p) 1275 void *p; 1276 { 1277 uhci_softc_t *sc = p; 1278 int n; 1279 1280 UHCICMD(sc, UHCI_CMD_HCRESET); 1281 /* The reset bit goes low when the controller is done. */ 1282 for (n = 0; n < UHCI_RESET_TIMEOUT && 1283 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1284 delay(100); 1285 if (n >= UHCI_RESET_TIMEOUT) 1286 printf("%s: controller did not reset\n", 1287 USBDEVNAME(sc->sc_bus.bdev)); 1288 } 1289 #endif 1290 1291 usbd_status 1292 uhci_run(sc, run) 1293 uhci_softc_t *sc; 1294 int run; 1295 { 1296 int s, n, running; 1297 u_int16_t cmd; 1298 1299 run = run != 0; 1300 s = splusb(); 1301 DPRINTF(("uhci_run: setting run=%d\n", run)); 1302 cmd = UREAD2(sc, UHCI_CMD); 1303 if (run) 1304 cmd |= UHCI_CMD_RS; 1305 else 1306 cmd &= ~UHCI_CMD_RS; 1307 UHCICMD(sc, cmd); 1308 for(n = 0; n < 10; n++) { 1309 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1310 /* return when we've entered the state we want */ 1311 if (run == running) { 1312 splx(s); 1313 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1314 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1315 return (USBD_NORMAL_COMPLETION); 1316 } 1317 usb_delay_ms(&sc->sc_bus, 1); 1318 } 1319 splx(s); 1320 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1321 run ? "start" : "stop"); 1322 return (USBD_IOERROR); 1323 } 1324 1325 /* 1326 * Memory management routines. 1327 * uhci_alloc_std allocates TDs 1328 * uhci_alloc_sqh allocates QHs 1329 * These two routines do their own free list management, 1330 * partly for speed, partly because allocating DMAable memory 1331 * has page size granularaity so much memory would be wasted if 1332 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1333 */ 1334 1335 uhci_soft_td_t * 1336 uhci_alloc_std(sc) 1337 uhci_softc_t *sc; 1338 { 1339 uhci_soft_td_t *std; 1340 usbd_status err; 1341 int i, offs; 1342 usb_dma_t dma; 1343 1344 if (sc->sc_freetds == NULL) { 1345 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1346 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1347 UHCI_TD_ALIGN, &dma); 1348 if (err) 1349 return (0); 1350 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1351 offs = i * UHCI_STD_SIZE; 1352 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1353 std->physaddr = DMAADDR(&dma) + offs; 1354 std->link.std = sc->sc_freetds; 1355 sc->sc_freetds = std; 1356 } 1357 } 1358 std = sc->sc_freetds; 1359 sc->sc_freetds = std->link.std; 1360 memset(&std->td, 0, sizeof(uhci_td_t)); 1361 return std; 1362 } 1363 1364 void 1365 uhci_free_std(sc, std) 1366 uhci_softc_t *sc; 1367 uhci_soft_td_t *std; 1368 { 1369 #ifdef DIAGNOSTIC 1370 #define TD_IS_FREE 0x12345678 1371 if (std->td.td_token == LE(TD_IS_FREE)) { 1372 printf("uhci_free_std: freeing free TD %p\n", std); 1373 return; 1374 } 1375 std->td.td_token = LE(TD_IS_FREE); 1376 #endif 1377 std->link.std = sc->sc_freetds; 1378 sc->sc_freetds = std; 1379 } 1380 1381 uhci_soft_qh_t * 1382 uhci_alloc_sqh(sc) 1383 uhci_softc_t *sc; 1384 { 1385 uhci_soft_qh_t *sqh; 1386 usbd_status err; 1387 int i, offs; 1388 usb_dma_t dma; 1389 1390 if (sc->sc_freeqhs == NULL) { 1391 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1392 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1393 UHCI_QH_ALIGN, &dma); 1394 if (err) 1395 return (0); 1396 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1397 offs = i * UHCI_SQH_SIZE; 1398 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1399 sqh->physaddr = DMAADDR(&dma) + offs; 1400 sqh->hlink = sc->sc_freeqhs; 1401 sc->sc_freeqhs = sqh; 1402 } 1403 } 1404 sqh = sc->sc_freeqhs; 1405 sc->sc_freeqhs = sqh->hlink; 1406 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1407 return (sqh); 1408 } 1409 1410 void 1411 uhci_free_sqh(sc, sqh) 1412 uhci_softc_t *sc; 1413 uhci_soft_qh_t *sqh; 1414 { 1415 sqh->hlink = sc->sc_freeqhs; 1416 sc->sc_freeqhs = sqh; 1417 } 1418 1419 #if 0 1420 /* 1421 * Enter a list of transfers onto a control queue. 1422 * Called at splusb() 1423 */ 1424 void 1425 uhci_enter_ctl_q(sc, sqh, ii) 1426 uhci_softc_t *sc; 1427 uhci_soft_qh_t *sqh; 1428 uhci_intr_info_t *ii; 1429 { 1430 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1431 1432 } 1433 #endif 1434 1435 void 1436 uhci_free_std_chain(sc, std, stdend) 1437 uhci_softc_t *sc; 1438 uhci_soft_td_t *std; 1439 uhci_soft_td_t *stdend; 1440 { 1441 uhci_soft_td_t *p; 1442 1443 for (; std != stdend; std = p) { 1444 p = std->link.std; 1445 uhci_free_std(sc, std); 1446 } 1447 } 1448 1449 usbd_status 1450 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1451 struct uhci_pipe *upipe; 1452 uhci_softc_t *sc; 1453 int len, rd; 1454 u_int16_t flags; 1455 usb_dma_t *dma; 1456 uhci_soft_td_t **sp, **ep; 1457 { 1458 uhci_soft_td_t *p, *lastp; 1459 uhci_physaddr_t lastlink; 1460 int i, ntd, l, tog, maxp; 1461 u_int32_t status; 1462 int addr = upipe->pipe.device->address; 1463 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1464 1465 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1466 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1467 upipe->pipe.device->lowspeed, flags)); 1468 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1469 if (maxp == 0) { 1470 printf("uhci_alloc_std_chain: maxp=0\n"); 1471 return (USBD_INVAL); 1472 } 1473 ntd = (len + maxp - 1) / maxp; 1474 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1475 ntd++; 1476 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1477 if (ntd == 0) { 1478 *sp = *ep = 0; 1479 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1480 return (USBD_NORMAL_COMPLETION); 1481 } 1482 tog = upipe->nexttoggle; 1483 if (ntd % 2 == 0) 1484 tog ^= 1; 1485 upipe->nexttoggle = tog ^ 1; 1486 lastp = 0; 1487 lastlink = UHCI_PTR_T; 1488 ntd--; 1489 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1490 if (upipe->pipe.device->lowspeed) 1491 status |= UHCI_TD_LS; 1492 if (flags & USBD_SHORT_XFER_OK) 1493 status |= UHCI_TD_SPD; 1494 for (i = ntd; i >= 0; i--) { 1495 p = uhci_alloc_std(sc); 1496 if (p == NULL) { 1497 uhci_free_std_chain(sc, lastp, 0); 1498 return (USBD_NOMEM); 1499 } 1500 p->link.std = lastp; 1501 if (lastlink == UHCI_PTR_T) 1502 p->td.td_link = LE(lastlink); 1503 else 1504 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1505 lastp = p; 1506 lastlink = p->physaddr; 1507 p->td.td_status = LE(status); 1508 if (i == ntd) { 1509 /* last TD */ 1510 l = len % maxp; 1511 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1512 l = maxp; 1513 *ep = p; 1514 } else 1515 l = maxp; 1516 p->td.td_token = 1517 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1518 UHCI_TD_OUT(l, endpt, addr, tog)); 1519 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1520 tog ^= 1; 1521 } 1522 *sp = lastp; 1523 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1524 upipe->nexttoggle)); 1525 return (USBD_NORMAL_COMPLETION); 1526 } 1527 1528 void 1529 uhci_device_clear_toggle(pipe) 1530 usbd_pipe_handle pipe; 1531 { 1532 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1533 upipe->nexttoggle = 0; 1534 } 1535 1536 void 1537 uhci_noop(pipe) 1538 usbd_pipe_handle pipe; 1539 { 1540 } 1541 1542 usbd_status 1543 uhci_device_bulk_transfer(xfer) 1544 usbd_xfer_handle xfer; 1545 { 1546 usbd_status err; 1547 1548 /* Insert last in queue. */ 1549 err = usb_insert_transfer(xfer); 1550 if (err) 1551 return (err); 1552 1553 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1554 * start first 1555 */ 1556 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1557 } 1558 1559 usbd_status 1560 uhci_device_bulk_start(xfer) 1561 usbd_xfer_handle xfer; 1562 { 1563 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1564 usbd_device_handle dev = upipe->pipe.device; 1565 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1566 uhci_intr_info_t *ii = upipe->iinfo; 1567 uhci_soft_td_t *data, *dataend; 1568 uhci_soft_qh_t *sqh; 1569 usbd_status err; 1570 int len, isread, endpt; 1571 int s; 1572 1573 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1574 xfer, xfer->length, xfer->flags)); 1575 1576 if (sc->sc_dying) 1577 return (USBD_IOERROR); 1578 1579 #ifdef DIAGNOSTIC 1580 if (xfer->rqflags & URQ_REQUEST) 1581 panic("uhci_device_bulk_transfer: a request\n"); 1582 #endif 1583 1584 len = xfer->length; 1585 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1586 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1587 sqh = upipe->u.bulk.sqh; 1588 1589 upipe->u.bulk.isread = isread; 1590 upipe->u.bulk.length = len; 1591 1592 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1593 &xfer->dmabuf, &data, &dataend); 1594 if (err) 1595 return (err); 1596 dataend->td.td_status |= LE(UHCI_TD_IOC); 1597 1598 #ifdef UHCI_DEBUG 1599 if (uhcidebug > 8) { 1600 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1601 uhci_dump_tds(data); 1602 } 1603 #endif 1604 1605 /* Set up interrupt info. */ 1606 ii->xfer = xfer; 1607 ii->stdstart = data; 1608 ii->stdend = dataend; 1609 #if defined(__FreeBSD__) 1610 callout_handle_init(&ii->timeout_handle); 1611 #endif 1612 #ifdef DIAGNOSTIC 1613 if (!ii->isdone) { 1614 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1615 } 1616 ii->isdone = 0; 1617 #endif 1618 1619 sqh->elink = data; 1620 sqh->qh.qh_elink = LE(data->physaddr); 1621 sqh->intr_info = ii; 1622 1623 s = splusb(); 1624 uhci_add_bulk(sc, sqh); 1625 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1626 1627 if (xfer->timeout && !sc->sc_bus.use_polling) { 1628 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1629 ii->timeout_handle); 1630 } 1631 splx(s); 1632 1633 #ifdef UHCI_DEBUG 1634 if (uhcidebug > 10) { 1635 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1636 uhci_dump_tds(data); 1637 } 1638 #endif 1639 1640 if (sc->sc_bus.use_polling) 1641 uhci_waitintr(sc, xfer); 1642 1643 return (USBD_IN_PROGRESS); 1644 } 1645 1646 /* Abort a device bulk request. */ 1647 void 1648 uhci_device_bulk_abort(xfer) 1649 usbd_xfer_handle xfer; 1650 { 1651 DPRINTF(("uhci_device_bulk_abort:\n")); 1652 uhci_abort_xfer(xfer, USBD_CANCELLED); 1653 } 1654 1655 void 1656 uhci_abort_xfer(xfer, status) 1657 usbd_xfer_handle xfer; 1658 usbd_status status; 1659 { 1660 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1661 uhci_intr_info_t *ii = upipe->iinfo; 1662 uhci_soft_td_t *std; 1663 1664 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1665 1666 /* Make interrupt routine ignore it, */ 1667 xfer->status = status; 1668 1669 /* don't timeout, */ 1670 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1671 1672 /* make hardware ignore it, */ 1673 for (std = ii->stdstart; std != 0; std = std->link.std) 1674 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1675 1676 xfer->hcpriv = ii; 1677 1678 #if 1 1679 /* Make sure hardware has completed. */ 1680 if (xfer->device->bus->intr_context) { 1681 /* We have no process context, so we can't use tsleep(). */ 1682 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1683 } else { 1684 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1685 KASSERT(intr_nesting_level == 0, 1686 ("ohci_abort_req in interrupt context")); 1687 #endif 1688 usb_delay_ms(xfer->pipe->device->bus, 1); 1689 /* and call final part of interrupt handler. */ 1690 uhci_abort_xfer_end(xfer); 1691 } 1692 #else 1693 delay(1000); 1694 uhci_abort_xfer_end(xfer); 1695 #endif 1696 } 1697 1698 void 1699 uhci_abort_xfer_end(v) 1700 void *v; 1701 { 1702 usbd_xfer_handle xfer = v; 1703 int s; 1704 1705 s = splusb(); 1706 usb_transfer_complete(xfer); 1707 splx(s); 1708 } 1709 1710 /* Close a device bulk pipe. */ 1711 void 1712 uhci_device_bulk_close(pipe) 1713 usbd_pipe_handle pipe; 1714 { 1715 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1716 usbd_device_handle dev = upipe->pipe.device; 1717 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1718 1719 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1720 uhci_free_intr_info(upipe->iinfo); 1721 /* XXX free other resources */ 1722 } 1723 1724 usbd_status 1725 uhci_device_ctrl_transfer(xfer) 1726 usbd_xfer_handle xfer; 1727 { 1728 usbd_status err; 1729 1730 /* Insert last in queue. */ 1731 err = usb_insert_transfer(xfer); 1732 if (err) 1733 return (err); 1734 1735 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1736 * start first 1737 */ 1738 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1739 } 1740 1741 usbd_status 1742 uhci_device_ctrl_start(xfer) 1743 usbd_xfer_handle xfer; 1744 { 1745 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1746 usbd_status err; 1747 1748 if (sc->sc_dying) 1749 return (USBD_IOERROR); 1750 1751 #ifdef DIAGNOSTIC 1752 if (!(xfer->rqflags & URQ_REQUEST)) 1753 panic("uhci_device_ctrl_transfer: not a request\n"); 1754 #endif 1755 1756 err = uhci_device_request(xfer); 1757 if (err) 1758 return (err); 1759 1760 if (sc->sc_bus.use_polling) 1761 uhci_waitintr(sc, xfer); 1762 return (USBD_IN_PROGRESS); 1763 } 1764 1765 usbd_status 1766 uhci_device_intr_transfer(xfer) 1767 usbd_xfer_handle xfer; 1768 { 1769 usbd_status err; 1770 1771 /* Insert last in queue. */ 1772 err = usb_insert_transfer(xfer); 1773 if (err) 1774 return (err); 1775 1776 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1777 * start first 1778 */ 1779 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1780 } 1781 1782 usbd_status 1783 uhci_device_intr_start(xfer) 1784 usbd_xfer_handle xfer; 1785 { 1786 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1787 usbd_device_handle dev = upipe->pipe.device; 1788 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1789 uhci_intr_info_t *ii = upipe->iinfo; 1790 uhci_soft_td_t *data, *dataend; 1791 uhci_soft_qh_t *sqh; 1792 usbd_status err; 1793 int i, s; 1794 1795 if (sc->sc_dying) 1796 return (USBD_IOERROR); 1797 1798 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1799 xfer, xfer->length, xfer->flags)); 1800 1801 #ifdef DIAGNOSTIC 1802 if (xfer->rqflags & URQ_REQUEST) 1803 panic("uhci_device_intr_transfer: a request\n"); 1804 #endif 1805 1806 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1807 &xfer->dmabuf, &data, &dataend); 1808 if (err) 1809 return (err); 1810 dataend->td.td_status |= LE(UHCI_TD_IOC); 1811 1812 #ifdef UHCI_DEBUG 1813 if (uhcidebug > 10) { 1814 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1815 uhci_dump_tds(data); 1816 uhci_dump_qh(upipe->u.intr.qhs[0]); 1817 } 1818 #endif 1819 1820 s = splusb(); 1821 /* Set up interrupt info. */ 1822 ii->xfer = xfer; 1823 ii->stdstart = data; 1824 ii->stdend = dataend; 1825 #if defined(__FreeBSD__) 1826 callout_handle_init(&ii->timeout_handle); 1827 #endif 1828 #ifdef DIAGNOSTIC 1829 if (!ii->isdone) { 1830 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1831 } 1832 ii->isdone = 0; 1833 #endif 1834 1835 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1836 upipe->u.intr.qhs[0])); 1837 for (i = 0; i < upipe->u.intr.npoll; i++) { 1838 sqh = upipe->u.intr.qhs[i]; 1839 sqh->elink = data; 1840 sqh->qh.qh_elink = LE(data->physaddr); 1841 } 1842 splx(s); 1843 1844 #ifdef UHCI_DEBUG 1845 if (uhcidebug > 10) { 1846 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1847 uhci_dump_tds(data); 1848 uhci_dump_qh(upipe->u.intr.qhs[0]); 1849 } 1850 #endif 1851 1852 return (USBD_IN_PROGRESS); 1853 } 1854 1855 /* Abort a device control request. */ 1856 void 1857 uhci_device_ctrl_abort(xfer) 1858 usbd_xfer_handle xfer; 1859 { 1860 DPRINTF(("uhci_device_ctrl_abort:\n")); 1861 uhci_abort_xfer(xfer, USBD_CANCELLED); 1862 } 1863 1864 /* Close a device control pipe. */ 1865 void 1866 uhci_device_ctrl_close(pipe) 1867 usbd_pipe_handle pipe; 1868 { 1869 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1870 1871 uhci_free_intr_info(upipe->iinfo); 1872 /* XXX free other resources? */ 1873 } 1874 1875 /* Abort a device interrupt request. */ 1876 void 1877 uhci_device_intr_abort(xfer) 1878 usbd_xfer_handle xfer; 1879 { 1880 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1881 if (xfer->pipe->intrxfer == xfer) { 1882 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1883 xfer->pipe->intrxfer = 0; 1884 } 1885 uhci_abort_xfer(xfer, USBD_CANCELLED); 1886 } 1887 1888 /* Close a device interrupt pipe. */ 1889 void 1890 uhci_device_intr_close(pipe) 1891 usbd_pipe_handle pipe; 1892 { 1893 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1894 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1895 int i, s, npoll; 1896 1897 upipe->iinfo->stdstart = 0; /* inactive */ 1898 1899 /* Unlink descriptors from controller data structures. */ 1900 npoll = upipe->u.intr.npoll; 1901 uhci_lock_frames(sc); 1902 for (i = 0; i < npoll; i++) 1903 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1904 upipe->u.intr.qhs[i]); 1905 uhci_unlock_frames(sc); 1906 1907 /* 1908 * We now have to wait for any activity on the physical 1909 * descriptors to stop. 1910 */ 1911 usb_delay_ms(&sc->sc_bus, 2); 1912 1913 for(i = 0; i < npoll; i++) 1914 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1915 free(upipe->u.intr.qhs, M_USBHC); 1916 1917 s = splusb(); 1918 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1919 splx(s); 1920 uhci_free_intr_info(upipe->iinfo); 1921 1922 /* XXX free other resources */ 1923 } 1924 1925 usbd_status 1926 uhci_device_request(xfer) 1927 usbd_xfer_handle xfer; 1928 { 1929 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1930 usb_device_request_t *req = &xfer->request; 1931 usbd_device_handle dev = upipe->pipe.device; 1932 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1933 int addr = dev->address; 1934 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1935 uhci_intr_info_t *ii = upipe->iinfo; 1936 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1937 uhci_soft_qh_t *sqh; 1938 int len; 1939 u_int32_t ls; 1940 usbd_status err; 1941 int isread; 1942 int s; 1943 1944 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1945 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1946 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1947 UGETW(req->wIndex), UGETW(req->wLength), 1948 addr, endpt)); 1949 1950 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1951 isread = req->bmRequestType & UT_READ; 1952 len = UGETW(req->wLength); 1953 1954 setup = upipe->u.ctl.setup; 1955 stat = upipe->u.ctl.stat; 1956 sqh = upipe->u.ctl.sqh; 1957 1958 /* Set up data transaction */ 1959 if (len != 0) { 1960 upipe->nexttoggle = 1; 1961 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1962 &xfer->dmabuf, &data, &dataend); 1963 if (err) 1964 return (err); 1965 next = data; 1966 dataend->link.std = stat; 1967 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1968 } else { 1969 next = stat; 1970 } 1971 upipe->u.ctl.length = len; 1972 1973 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1974 1975 setup->link.std = next; 1976 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1977 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1978 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1979 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1980 1981 stat->link.std = 0; 1982 stat->td.td_link = LE(UHCI_PTR_T); 1983 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1984 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1985 stat->td.td_token = 1986 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1987 UHCI_TD_IN (0, endpt, addr, 1)); 1988 stat->td.td_buffer = LE(0); 1989 1990 #ifdef UHCI_DEBUG 1991 if (uhcidebug > 10) { 1992 DPRINTF(("uhci_device_request: before transfer\n")); 1993 uhci_dump_tds(setup); 1994 } 1995 #endif 1996 1997 /* Set up interrupt info. */ 1998 ii->xfer = xfer; 1999 ii->stdstart = setup; 2000 ii->stdend = stat; 2001 #if defined(__FreeBSD__) 2002 callout_handle_init(&ii->timeout_handle); 2003 #endif 2004 #ifdef DIAGNOSTIC 2005 if (!ii->isdone) { 2006 printf("uhci_device_request: not done, ii=%p\n", ii); 2007 } 2008 ii->isdone = 0; 2009 #endif 2010 2011 sqh->elink = setup; 2012 sqh->qh.qh_elink = LE(setup->physaddr); 2013 sqh->intr_info = ii; 2014 2015 s = splusb(); 2016 uhci_add_ctrl(sc, sqh); 2017 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2018 #ifdef UHCI_DEBUG 2019 if (uhcidebug > 12) { 2020 uhci_soft_td_t *std; 2021 uhci_soft_qh_t *xqh; 2022 uhci_soft_qh_t *sxqh; 2023 int maxqh = 0; 2024 uhci_physaddr_t link; 2025 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2026 for (std = sc->sc_vframes[0].htd, link = 0; 2027 (link & UHCI_PTR_Q) == 0; 2028 std = std->link.std) { 2029 link = LE(std->td.td_link); 2030 uhci_dump_td(std); 2031 } 2032 sxqh = (uhci_soft_qh_t *)std; 2033 uhci_dump_qh(sxqh); 2034 for (xqh = sxqh; 2035 xqh != NULL; 2036 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2037 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2038 uhci_dump_qh(xqh); 2039 } 2040 DPRINTF(("Enqueued QH:\n")); 2041 uhci_dump_qh(sqh); 2042 uhci_dump_tds(sqh->elink); 2043 } 2044 #endif 2045 if (xfer->timeout && !sc->sc_bus.use_polling) { 2046 usb_timeout(uhci_timeout, ii, 2047 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2048 } 2049 splx(s); 2050 2051 return (USBD_NORMAL_COMPLETION); 2052 } 2053 2054 usbd_status 2055 uhci_device_isoc_transfer(xfer) 2056 usbd_xfer_handle xfer; 2057 { 2058 usbd_status err; 2059 2060 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2061 2062 /* Put it on our queue, */ 2063 err = usb_insert_transfer(xfer); 2064 2065 /* bail out on error, */ 2066 if (err && err != USBD_IN_PROGRESS) 2067 return (err); 2068 2069 /* XXX should check inuse here */ 2070 2071 /* insert into schedule, */ 2072 uhci_device_isoc_enter(xfer); 2073 2074 /* and put on interrupt list if the pipe wasn't running */ 2075 if (!err) 2076 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2077 2078 return (err); 2079 } 2080 2081 void 2082 uhci_device_isoc_enter(xfer) 2083 usbd_xfer_handle xfer; 2084 { 2085 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2086 usbd_device_handle dev = upipe->pipe.device; 2087 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2088 struct iso *iso = &upipe->u.iso; 2089 uhci_soft_td_t *std; 2090 u_int32_t buf, len, status; 2091 int s, i, next, nframes; 2092 2093 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2094 "nframes=%d\n", 2095 iso->inuse, iso->next, xfer, xfer->nframes)); 2096 2097 if (sc->sc_dying) 2098 return; 2099 2100 if (xfer->status == USBD_IN_PROGRESS) { 2101 /* This request has already been entered into the frame list */ 2102 /* XXX */ 2103 } 2104 2105 #ifdef DIAGNOSTIC 2106 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2107 printf("uhci_device_isoc_enter: overflow!\n"); 2108 #endif 2109 2110 next = iso->next; 2111 if (next == -1) { 2112 /* Not in use yet, schedule it a few frames ahead. */ 2113 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2114 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2115 } 2116 2117 xfer->status = USBD_IN_PROGRESS; 2118 xfer->hcprivint = next; 2119 2120 buf = DMAADDR(&xfer->dmabuf); 2121 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2122 UHCI_TD_ACTIVE | 2123 UHCI_TD_IOS)); 2124 nframes = xfer->nframes; 2125 s = splusb(); 2126 for (i = 0; i < nframes; i++) { 2127 std = iso->stds[next]; 2128 if (++next >= UHCI_VFRAMELIST_COUNT) 2129 next = 0; 2130 len = xfer->frlengths[i]; 2131 std->td.td_buffer = LE(buf); 2132 if (i == nframes - 1) 2133 status |= LE(UHCI_TD_IOC); 2134 std->td.td_status = status; 2135 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2136 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2137 #ifdef UHCI_DEBUG 2138 if (uhcidebug > 5) { 2139 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2140 uhci_dump_td(std); 2141 } 2142 #endif 2143 buf += len; 2144 } 2145 iso->next = next; 2146 iso->inuse += xfer->nframes; 2147 2148 splx(s); 2149 } 2150 2151 usbd_status 2152 uhci_device_isoc_start(xfer) 2153 usbd_xfer_handle xfer; 2154 { 2155 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2156 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2157 uhci_intr_info_t *ii = upipe->iinfo; 2158 uhci_soft_td_t *end; 2159 int s, i; 2160 2161 if (sc->sc_dying) 2162 return (USBD_IOERROR); 2163 2164 #ifdef DIAGNOSTIC 2165 if (xfer->status != USBD_IN_PROGRESS) 2166 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2167 #endif 2168 2169 /* Find the last TD */ 2170 i = xfer->hcprivint + xfer->nframes; 2171 if (i >= UHCI_VFRAMELIST_COUNT) 2172 i -= UHCI_VFRAMELIST_COUNT; 2173 end = upipe->u.iso.stds[i]; 2174 2175 s = splusb(); 2176 2177 /* Set up interrupt info. */ 2178 ii->xfer = xfer; 2179 ii->stdstart = end; 2180 ii->stdend = end; 2181 #if defined(__FreeBSD__) 2182 callout_handle_init(&ii->timeout_handle); 2183 #endif 2184 #ifdef DIAGNOSTIC 2185 if (!ii->isdone) { 2186 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2187 } 2188 ii->isdone = 0; 2189 #endif 2190 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2191 2192 splx(s); 2193 2194 return (USBD_IN_PROGRESS); 2195 } 2196 2197 void 2198 uhci_device_isoc_abort(xfer) 2199 usbd_xfer_handle xfer; 2200 { 2201 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2202 uhci_intr_info_t *ii = upipe->iinfo; 2203 uhci_soft_td_t **stds = upipe->u.iso.stds; 2204 uhci_soft_td_t *std; 2205 int i, n, nframes; 2206 2207 /* Make interrupt routine ignore it, */ 2208 xfer->status = USBD_CANCELLED; 2209 2210 /* make hardware ignore it, */ 2211 nframes = xfer->nframes; 2212 n = xfer->hcprivint; 2213 for (i = 0; i < nframes; i++) { 2214 std = stds[n]; 2215 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2216 if (++n >= UHCI_VFRAMELIST_COUNT) 2217 n = 0; 2218 } 2219 2220 xfer->hcpriv = ii; 2221 2222 /* make sure hardware has completed, */ 2223 if (xfer->device->bus->intr_context) { 2224 /* We have no process context, so we can't use tsleep(). */ 2225 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2226 } else { 2227 usb_delay_ms(xfer->pipe->device->bus, 1); 2228 /* and call final part of interrupt handler. */ 2229 uhci_abort_xfer_end(xfer); 2230 } 2231 } 2232 2233 void 2234 uhci_device_isoc_close(pipe) 2235 usbd_pipe_handle pipe; 2236 { 2237 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2238 usbd_device_handle dev = upipe->pipe.device; 2239 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2240 uhci_soft_td_t *std, *vstd; 2241 struct iso *iso; 2242 int i; 2243 2244 /* 2245 * Make sure all TDs are marked as inactive. 2246 * Wait for completion. 2247 * Unschedule. 2248 * Deallocate. 2249 */ 2250 iso = &upipe->u.iso; 2251 2252 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2253 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2254 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2255 2256 uhci_lock_frames(sc); 2257 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2258 std = iso->stds[i]; 2259 for (vstd = sc->sc_vframes[i].htd; 2260 vstd != NULL && vstd->link.std != std; 2261 vstd = vstd->link.std) 2262 ; 2263 if (vstd == NULL) { 2264 /*panic*/ 2265 printf("uhci_device_isoc_close: %p not found\n", std); 2266 uhci_unlock_frames(sc); 2267 return; 2268 } 2269 vstd->link = std->link; 2270 vstd->td.td_link = std->td.td_link; 2271 uhci_free_std(sc, std); 2272 } 2273 uhci_unlock_frames(sc); 2274 2275 free(iso->stds, M_USBHC); 2276 } 2277 2278 usbd_status 2279 uhci_setup_isoc(pipe) 2280 usbd_pipe_handle pipe; 2281 { 2282 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2283 usbd_device_handle dev = upipe->pipe.device; 2284 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2285 int addr = upipe->pipe.device->address; 2286 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2287 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2288 uhci_soft_td_t *std, *vstd; 2289 u_int32_t token; 2290 struct iso *iso; 2291 int i; 2292 2293 iso = &upipe->u.iso; 2294 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2295 M_USBHC, M_WAITOK); 2296 2297 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2298 UHCI_TD_OUT(0, endpt, addr, 0)); 2299 2300 /* Allocate the TDs and mark as inactive; */ 2301 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2302 std = uhci_alloc_std(sc); 2303 if (std == 0) 2304 goto bad; 2305 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2306 std->td.td_token = token; 2307 iso->stds[i] = std; 2308 } 2309 2310 /* Insert TDs into schedule. */ 2311 uhci_lock_frames(sc); 2312 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2313 std = iso->stds[i]; 2314 vstd = sc->sc_vframes[i].htd; 2315 std->link = vstd->link; 2316 std->td.td_link = vstd->td.td_link; 2317 vstd->link.std = std; 2318 vstd->td.td_link = LE(std->physaddr); 2319 } 2320 uhci_unlock_frames(sc); 2321 2322 iso->next = -1; 2323 iso->inuse = 0; 2324 2325 return (USBD_NORMAL_COMPLETION); 2326 2327 bad: 2328 while (--i >= 0) 2329 uhci_free_std(sc, iso->stds[i]); 2330 free(iso->stds, M_USBHC); 2331 return (USBD_NOMEM); 2332 } 2333 2334 void 2335 uhci_device_isoc_done(xfer) 2336 usbd_xfer_handle xfer; 2337 { 2338 uhci_intr_info_t *ii = xfer->hcpriv; 2339 2340 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2341 2342 /* Turn off the interrupt since it is active even if the TD is not. */ 2343 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2344 2345 LIST_REMOVE(ii, list); /* remove from active list */ 2346 } 2347 2348 void 2349 uhci_device_intr_done(xfer) 2350 usbd_xfer_handle xfer; 2351 { 2352 uhci_intr_info_t *ii = xfer->hcpriv; 2353 uhci_softc_t *sc = ii->sc; 2354 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2355 uhci_soft_qh_t *sqh; 2356 int i, npoll; 2357 2358 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2359 2360 npoll = upipe->u.intr.npoll; 2361 for(i = 0; i < npoll; i++) { 2362 sqh = upipe->u.intr.qhs[i]; 2363 sqh->elink = 0; 2364 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2365 } 2366 uhci_free_std_chain(sc, ii->stdstart, 0); 2367 2368 /* XXX Wasteful. */ 2369 if (xfer->pipe->repeat) { 2370 uhci_soft_td_t *data, *dataend; 2371 2372 /* This alloc cannot fail since we freed the chain above. */ 2373 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2374 &xfer->dmabuf, &data, &dataend); 2375 dataend->td.td_status |= LE(UHCI_TD_IOC); 2376 2377 #ifdef UHCI_DEBUG 2378 if (uhcidebug > 10) { 2379 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2380 uhci_dump_tds(data); 2381 uhci_dump_qh(upipe->u.intr.qhs[0]); 2382 } 2383 #endif 2384 2385 ii->stdstart = data; 2386 ii->stdend = dataend; 2387 #if defined(__FreeBSD__) 2388 callout_handle_init(&ii->timeout_handle); 2389 #endif 2390 #ifdef DIAGNOSTIC 2391 if (!ii->isdone) { 2392 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2393 } 2394 ii->isdone = 0; 2395 #endif 2396 for (i = 0; i < npoll; i++) { 2397 sqh = upipe->u.intr.qhs[i]; 2398 sqh->elink = data; 2399 sqh->qh.qh_elink = LE(data->physaddr); 2400 } 2401 } else { 2402 ii->stdstart = 0; /* mark as inactive */ 2403 } 2404 } 2405 2406 /* Deallocate request data structures */ 2407 void 2408 uhci_device_ctrl_done(xfer) 2409 usbd_xfer_handle xfer; 2410 { 2411 uhci_intr_info_t *ii = xfer->hcpriv; 2412 uhci_softc_t *sc = ii->sc; 2413 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2414 2415 #ifdef DIAGNOSTIC 2416 if (!(xfer->rqflags & URQ_REQUEST)) 2417 panic("uhci_ctrl_done: not a request\n"); 2418 #endif 2419 2420 LIST_REMOVE(ii, list); /* remove from active list */ 2421 2422 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2423 2424 if (upipe->u.ctl.length != 0) 2425 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2426 2427 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2428 } 2429 2430 /* Deallocate request data structures */ 2431 void 2432 uhci_device_bulk_done(xfer) 2433 usbd_xfer_handle xfer; 2434 { 2435 uhci_intr_info_t *ii = xfer->hcpriv; 2436 uhci_softc_t *sc = ii->sc; 2437 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2438 2439 LIST_REMOVE(ii, list); /* remove from active list */ 2440 2441 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2442 2443 uhci_free_std_chain(sc, ii->stdstart, 0); 2444 2445 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2446 } 2447 2448 /* Add interrupt QH, called with vflock. */ 2449 void 2450 uhci_add_intr(sc, n, sqh) 2451 uhci_softc_t *sc; 2452 int n; 2453 uhci_soft_qh_t *sqh; 2454 { 2455 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2456 uhci_soft_qh_t *eqh; 2457 2458 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2459 eqh = vf->eqh; 2460 sqh->hlink = eqh->hlink; 2461 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2462 eqh->hlink = sqh; 2463 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2464 vf->eqh = sqh; 2465 vf->bandwidth++; 2466 } 2467 2468 /* Remove interrupt QH, called with vflock. */ 2469 void 2470 uhci_remove_intr(sc, n, sqh) 2471 uhci_softc_t *sc; 2472 int n; 2473 uhci_soft_qh_t *sqh; 2474 { 2475 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2476 uhci_soft_qh_t *pqh; 2477 2478 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2479 2480 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2481 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2482 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2483 DPRINTF(("uhci_remove_intr: QH not found\n")); 2484 return; 2485 } 2486 #else 2487 ; 2488 #endif 2489 pqh->hlink = sqh->hlink; 2490 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2491 if (vf->eqh == sqh) 2492 vf->eqh = pqh; 2493 vf->bandwidth--; 2494 } 2495 2496 usbd_status 2497 uhci_device_setintr(sc, upipe, ival) 2498 uhci_softc_t *sc; 2499 struct uhci_pipe *upipe; 2500 int ival; 2501 { 2502 uhci_soft_qh_t *sqh; 2503 int i, npoll, s; 2504 u_int bestbw, bw, bestoffs, offs; 2505 2506 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2507 if (ival == 0) { 2508 printf("uhci_setintr: 0 interval\n"); 2509 return (USBD_INVAL); 2510 } 2511 2512 if (ival > UHCI_VFRAMELIST_COUNT) 2513 ival = UHCI_VFRAMELIST_COUNT; 2514 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2515 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2516 2517 upipe->u.intr.npoll = npoll; 2518 upipe->u.intr.qhs = 2519 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2520 2521 /* 2522 * Figure out which offset in the schedule that has most 2523 * bandwidth left over. 2524 */ 2525 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2526 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2527 for (bw = i = 0; i < npoll; i++) 2528 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2529 if (bw < bestbw) { 2530 bestbw = bw; 2531 bestoffs = offs; 2532 } 2533 } 2534 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2535 2536 upipe->iinfo->stdstart = 0; 2537 for(i = 0; i < npoll; i++) { 2538 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2539 sqh->elink = 0; 2540 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2541 sqh->pos = MOD(i * ival + bestoffs); 2542 sqh->intr_info = upipe->iinfo; 2543 } 2544 #undef MOD 2545 2546 s = splusb(); 2547 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2548 splx(s); 2549 2550 uhci_lock_frames(sc); 2551 /* Enter QHs into the controller data structures. */ 2552 for(i = 0; i < npoll; i++) 2553 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2554 upipe->u.intr.qhs[i]); 2555 uhci_unlock_frames(sc); 2556 2557 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2558 return (USBD_NORMAL_COMPLETION); 2559 } 2560 2561 /* Open a new pipe. */ 2562 usbd_status 2563 uhci_open(pipe) 2564 usbd_pipe_handle pipe; 2565 { 2566 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2567 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2568 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2569 usbd_status err; 2570 int ival; 2571 2572 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2573 pipe, pipe->device->address, 2574 ed->bEndpointAddress, sc->sc_addr)); 2575 if (pipe->device->address == sc->sc_addr) { 2576 switch (ed->bEndpointAddress) { 2577 case USB_CONTROL_ENDPOINT: 2578 pipe->methods = &uhci_root_ctrl_methods; 2579 break; 2580 case UE_DIR_IN | UHCI_INTR_ENDPT: 2581 pipe->methods = &uhci_root_intr_methods; 2582 break; 2583 default: 2584 return (USBD_INVAL); 2585 } 2586 } else { 2587 upipe->iinfo = uhci_alloc_intr_info(sc); 2588 if (upipe->iinfo == 0) 2589 return (USBD_NOMEM); 2590 switch (ed->bmAttributes & UE_XFERTYPE) { 2591 case UE_CONTROL: 2592 pipe->methods = &uhci_device_ctrl_methods; 2593 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2594 if (upipe->u.ctl.sqh == NULL) 2595 goto bad; 2596 upipe->u.ctl.setup = uhci_alloc_std(sc); 2597 if (upipe->u.ctl.setup == NULL) { 2598 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2599 goto bad; 2600 } 2601 upipe->u.ctl.stat = uhci_alloc_std(sc); 2602 if (upipe->u.ctl.stat == NULL) { 2603 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2604 uhci_free_std(sc, upipe->u.ctl.setup); 2605 goto bad; 2606 } 2607 err = usb_allocmem(&sc->sc_bus, 2608 sizeof(usb_device_request_t), 2609 0, &upipe->u.ctl.reqdma); 2610 if (err) { 2611 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2612 uhci_free_std(sc, upipe->u.ctl.setup); 2613 uhci_free_std(sc, upipe->u.ctl.stat); 2614 goto bad; 2615 } 2616 break; 2617 case UE_INTERRUPT: 2618 pipe->methods = &uhci_device_intr_methods; 2619 ival = pipe->interval; 2620 if (ival == USBD_DEFAULT_INTERVAL) 2621 ival = ed->bInterval; 2622 return (uhci_device_setintr(sc, upipe, ival)); 2623 case UE_ISOCHRONOUS: 2624 pipe->methods = &uhci_device_isoc_methods; 2625 return (uhci_setup_isoc(pipe)); 2626 case UE_BULK: 2627 pipe->methods = &uhci_device_bulk_methods; 2628 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2629 if (upipe->u.bulk.sqh == NULL) 2630 goto bad; 2631 break; 2632 } 2633 } 2634 return (USBD_NORMAL_COMPLETION); 2635 2636 bad: 2637 uhci_free_intr_info(upipe->iinfo); 2638 return (USBD_NOMEM); 2639 } 2640 2641 /* 2642 * Data structures and routines to emulate the root hub. 2643 */ 2644 usb_device_descriptor_t uhci_devd = { 2645 USB_DEVICE_DESCRIPTOR_SIZE, 2646 UDESC_DEVICE, /* type */ 2647 {0x00, 0x01}, /* USB version */ 2648 UCLASS_HUB, /* class */ 2649 USUBCLASS_HUB, /* subclass */ 2650 0, /* protocol */ 2651 64, /* max packet */ 2652 {0},{0},{0x00,0x01}, /* device id */ 2653 1,2,0, /* string indicies */ 2654 1 /* # of configurations */ 2655 }; 2656 2657 usb_config_descriptor_t uhci_confd = { 2658 USB_CONFIG_DESCRIPTOR_SIZE, 2659 UDESC_CONFIG, 2660 {USB_CONFIG_DESCRIPTOR_SIZE + 2661 USB_INTERFACE_DESCRIPTOR_SIZE + 2662 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2663 1, 2664 1, 2665 0, 2666 UC_SELF_POWERED, 2667 0 /* max power */ 2668 }; 2669 2670 usb_interface_descriptor_t uhci_ifcd = { 2671 USB_INTERFACE_DESCRIPTOR_SIZE, 2672 UDESC_INTERFACE, 2673 0, 2674 0, 2675 1, 2676 UCLASS_HUB, 2677 USUBCLASS_HUB, 2678 0, 2679 0 2680 }; 2681 2682 usb_endpoint_descriptor_t uhci_endpd = { 2683 USB_ENDPOINT_DESCRIPTOR_SIZE, 2684 UDESC_ENDPOINT, 2685 UE_DIR_IN | UHCI_INTR_ENDPT, 2686 UE_INTERRUPT, 2687 {8}, 2688 255 2689 }; 2690 2691 usb_hub_descriptor_t uhci_hubd_piix = { 2692 USB_HUB_DESCRIPTOR_SIZE, 2693 UDESC_HUB, 2694 2, 2695 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2696 50, /* power on to power good */ 2697 0, 2698 { 0x00 }, /* both ports are removable */ 2699 }; 2700 2701 int 2702 uhci_str(p, l, s) 2703 usb_string_descriptor_t *p; 2704 int l; 2705 char *s; 2706 { 2707 int i; 2708 2709 if (l == 0) 2710 return (0); 2711 p->bLength = 2 * strlen(s) + 2; 2712 if (l == 1) 2713 return (1); 2714 p->bDescriptorType = UDESC_STRING; 2715 l -= 2; 2716 for (i = 0; s[i] && l > 1; i++, l -= 2) 2717 USETW2(p->bString[i], 0, s[i]); 2718 return (2*i+2); 2719 } 2720 2721 /* 2722 * Simulate a hardware hub by handling all the necessary requests. 2723 */ 2724 usbd_status 2725 uhci_root_ctrl_transfer(xfer) 2726 usbd_xfer_handle xfer; 2727 { 2728 usbd_status err; 2729 2730 /* Insert last in queue. */ 2731 err = usb_insert_transfer(xfer); 2732 if (err) 2733 return (err); 2734 2735 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2736 * start first 2737 */ 2738 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2739 } 2740 2741 usbd_status 2742 uhci_root_ctrl_start(xfer) 2743 usbd_xfer_handle xfer; 2744 { 2745 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2746 usb_device_request_t *req; 2747 void *buf = NULL; 2748 int port, x; 2749 int s, len, value, index, status, change, l, totlen = 0; 2750 usb_port_status_t ps; 2751 usbd_status err; 2752 2753 if (sc->sc_dying) 2754 return (USBD_IOERROR); 2755 2756 #ifdef DIAGNOSTIC 2757 if (!(xfer->rqflags & URQ_REQUEST)) 2758 panic("uhci_root_ctrl_transfer: not a request\n"); 2759 #endif 2760 req = &xfer->request; 2761 2762 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2763 req->bmRequestType, req->bRequest)); 2764 2765 len = UGETW(req->wLength); 2766 value = UGETW(req->wValue); 2767 index = UGETW(req->wIndex); 2768 2769 if (len != 0) 2770 buf = KERNADDR(&xfer->dmabuf); 2771 2772 #define C(x,y) ((x) | ((y) << 8)) 2773 switch(C(req->bRequest, req->bmRequestType)) { 2774 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2775 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2776 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2777 /* 2778 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2779 * for the integrated root hub. 2780 */ 2781 break; 2782 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2783 if (len > 0) { 2784 *(u_int8_t *)buf = sc->sc_conf; 2785 totlen = 1; 2786 } 2787 break; 2788 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2789 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2790 switch(value >> 8) { 2791 case UDESC_DEVICE: 2792 if ((value & 0xff) != 0) { 2793 err = USBD_IOERROR; 2794 goto ret; 2795 } 2796 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2797 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2798 memcpy(buf, &uhci_devd, l); 2799 break; 2800 case UDESC_CONFIG: 2801 if ((value & 0xff) != 0) { 2802 err = USBD_IOERROR; 2803 goto ret; 2804 } 2805 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2806 memcpy(buf, &uhci_confd, l); 2807 buf = (char *)buf + l; 2808 len -= l; 2809 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2810 totlen += l; 2811 memcpy(buf, &uhci_ifcd, l); 2812 buf = (char *)buf + l; 2813 len -= l; 2814 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2815 totlen += l; 2816 memcpy(buf, &uhci_endpd, l); 2817 break; 2818 case UDESC_STRING: 2819 if (len == 0) 2820 break; 2821 *(u_int8_t *)buf = 0; 2822 totlen = 1; 2823 switch (value & 0xff) { 2824 case 1: /* Vendor */ 2825 totlen = uhci_str(buf, len, sc->sc_vendor); 2826 break; 2827 case 2: /* Product */ 2828 totlen = uhci_str(buf, len, "UHCI root hub"); 2829 break; 2830 } 2831 break; 2832 default: 2833 err = USBD_IOERROR; 2834 goto ret; 2835 } 2836 break; 2837 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2838 if (len > 0) { 2839 *(u_int8_t *)buf = 0; 2840 totlen = 1; 2841 } 2842 break; 2843 case C(UR_GET_STATUS, UT_READ_DEVICE): 2844 if (len > 1) { 2845 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2846 totlen = 2; 2847 } 2848 break; 2849 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2850 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2851 if (len > 1) { 2852 USETW(((usb_status_t *)buf)->wStatus, 0); 2853 totlen = 2; 2854 } 2855 break; 2856 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2857 if (value >= USB_MAX_DEVICES) { 2858 err = USBD_IOERROR; 2859 goto ret; 2860 } 2861 sc->sc_addr = value; 2862 break; 2863 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2864 if (value != 0 && value != 1) { 2865 err = USBD_IOERROR; 2866 goto ret; 2867 } 2868 sc->sc_conf = value; 2869 break; 2870 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2871 break; 2872 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2873 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2874 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2875 err = USBD_IOERROR; 2876 goto ret; 2877 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2878 break; 2879 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2880 break; 2881 /* Hub requests */ 2882 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2883 break; 2884 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2885 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2886 "port=%d feature=%d\n", 2887 index, value)); 2888 if (index == 1) 2889 port = UHCI_PORTSC1; 2890 else if (index == 2) 2891 port = UHCI_PORTSC2; 2892 else { 2893 err = USBD_IOERROR; 2894 goto ret; 2895 } 2896 switch(value) { 2897 case UHF_PORT_ENABLE: 2898 x = UREAD2(sc, port); 2899 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2900 break; 2901 case UHF_PORT_SUSPEND: 2902 x = UREAD2(sc, port); 2903 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2904 break; 2905 case UHF_PORT_RESET: 2906 x = UREAD2(sc, port); 2907 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2908 break; 2909 case UHF_C_PORT_CONNECTION: 2910 x = UREAD2(sc, port); 2911 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2912 break; 2913 case UHF_C_PORT_ENABLE: 2914 x = UREAD2(sc, port); 2915 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2916 break; 2917 case UHF_C_PORT_OVER_CURRENT: 2918 x = UREAD2(sc, port); 2919 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2920 break; 2921 case UHF_C_PORT_RESET: 2922 sc->sc_isreset = 0; 2923 err = USBD_NORMAL_COMPLETION; 2924 goto ret; 2925 case UHF_PORT_CONNECTION: 2926 case UHF_PORT_OVER_CURRENT: 2927 case UHF_PORT_POWER: 2928 case UHF_PORT_LOW_SPEED: 2929 case UHF_C_PORT_SUSPEND: 2930 default: 2931 err = USBD_IOERROR; 2932 goto ret; 2933 } 2934 break; 2935 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2936 if (index == 1) 2937 port = UHCI_PORTSC1; 2938 else if (index == 2) 2939 port = UHCI_PORTSC2; 2940 else { 2941 err = USBD_IOERROR; 2942 goto ret; 2943 } 2944 if (len > 0) { 2945 *(u_int8_t *)buf = 2946 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2947 UHCI_PORTSC_LS_SHIFT; 2948 totlen = 1; 2949 } 2950 break; 2951 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2952 if (value != 0) { 2953 err = USBD_IOERROR; 2954 goto ret; 2955 } 2956 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2957 totlen = l; 2958 memcpy(buf, &uhci_hubd_piix, l); 2959 break; 2960 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2961 if (len != 4) { 2962 err = USBD_IOERROR; 2963 goto ret; 2964 } 2965 memset(buf, 0, len); 2966 totlen = len; 2967 break; 2968 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2969 if (index == 1) 2970 port = UHCI_PORTSC1; 2971 else if (index == 2) 2972 port = UHCI_PORTSC2; 2973 else { 2974 err = USBD_IOERROR; 2975 goto ret; 2976 } 2977 if (len != 4) { 2978 err = USBD_IOERROR; 2979 goto ret; 2980 } 2981 x = UREAD2(sc, port); 2982 status = change = 0; 2983 if (x & UHCI_PORTSC_CCS ) 2984 status |= UPS_CURRENT_CONNECT_STATUS; 2985 if (x & UHCI_PORTSC_CSC ) 2986 change |= UPS_C_CONNECT_STATUS; 2987 if (x & UHCI_PORTSC_PE ) 2988 status |= UPS_PORT_ENABLED; 2989 if (x & UHCI_PORTSC_POEDC) 2990 change |= UPS_C_PORT_ENABLED; 2991 if (x & UHCI_PORTSC_OCI ) 2992 status |= UPS_OVERCURRENT_INDICATOR; 2993 if (x & UHCI_PORTSC_OCIC ) 2994 change |= UPS_C_OVERCURRENT_INDICATOR; 2995 if (x & UHCI_PORTSC_SUSP ) 2996 status |= UPS_SUSPEND; 2997 if (x & UHCI_PORTSC_LSDA ) 2998 status |= UPS_LOW_SPEED; 2999 status |= UPS_PORT_POWER; 3000 if (sc->sc_isreset) 3001 change |= UPS_C_PORT_RESET; 3002 USETW(ps.wPortStatus, status); 3003 USETW(ps.wPortChange, change); 3004 l = min(len, sizeof ps); 3005 memcpy(buf, &ps, l); 3006 totlen = l; 3007 break; 3008 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3009 err = USBD_IOERROR; 3010 goto ret; 3011 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3012 break; 3013 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3014 if (index == 1) 3015 port = UHCI_PORTSC1; 3016 else if (index == 2) 3017 port = UHCI_PORTSC2; 3018 else { 3019 err = USBD_IOERROR; 3020 goto ret; 3021 } 3022 switch(value) { 3023 case UHF_PORT_ENABLE: 3024 x = UREAD2(sc, port); 3025 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3026 break; 3027 case UHF_PORT_SUSPEND: 3028 x = UREAD2(sc, port); 3029 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3030 break; 3031 case UHF_PORT_RESET: 3032 x = UREAD2(sc, port); 3033 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3034 usb_delay_ms(&sc->sc_bus, 10); 3035 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3036 delay(100); 3037 x = UREAD2(sc, port); 3038 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3039 delay(100); 3040 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3041 index, UREAD2(sc, port))); 3042 sc->sc_isreset = 1; 3043 break; 3044 case UHF_C_PORT_CONNECTION: 3045 case UHF_C_PORT_ENABLE: 3046 case UHF_C_PORT_OVER_CURRENT: 3047 case UHF_PORT_CONNECTION: 3048 case UHF_PORT_OVER_CURRENT: 3049 case UHF_PORT_POWER: 3050 case UHF_PORT_LOW_SPEED: 3051 case UHF_C_PORT_SUSPEND: 3052 case UHF_C_PORT_RESET: 3053 default: 3054 err = USBD_IOERROR; 3055 goto ret; 3056 } 3057 break; 3058 default: 3059 err = USBD_IOERROR; 3060 goto ret; 3061 } 3062 xfer->actlen = totlen; 3063 err = USBD_NORMAL_COMPLETION; 3064 ret: 3065 xfer->status = err; 3066 xfer->hcpriv = 0; 3067 s = splusb(); 3068 usb_transfer_complete(xfer); 3069 splx(s); 3070 return (USBD_IN_PROGRESS); 3071 } 3072 3073 /* Abort a root control request. */ 3074 void 3075 uhci_root_ctrl_abort(xfer) 3076 usbd_xfer_handle xfer; 3077 { 3078 /* Nothing to do, all transfers are synchronous. */ 3079 } 3080 3081 /* Close the root pipe. */ 3082 void 3083 uhci_root_ctrl_close(pipe) 3084 usbd_pipe_handle pipe; 3085 { 3086 DPRINTF(("uhci_root_ctrl_close\n")); 3087 } 3088 3089 /* Abort a root interrupt request. */ 3090 void 3091 uhci_root_intr_abort(xfer) 3092 usbd_xfer_handle xfer; 3093 { 3094 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3095 3096 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3097 sc->sc_has_timo = NULL; 3098 3099 if (xfer->pipe->intrxfer == xfer) { 3100 DPRINTF(("uhci_root_intr_abort: remove\n")); 3101 xfer->pipe->intrxfer = 0; 3102 } 3103 xfer->status = USBD_CANCELLED; 3104 usb_transfer_complete(xfer); 3105 } 3106 3107 usbd_status 3108 uhci_root_intr_transfer(xfer) 3109 usbd_xfer_handle xfer; 3110 { 3111 usbd_status err; 3112 3113 /* Insert last in queue. */ 3114 err = usb_insert_transfer(xfer); 3115 if (err) 3116 return (err); 3117 3118 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3119 * start first 3120 */ 3121 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3122 } 3123 3124 /* Start a transfer on the root interrupt pipe */ 3125 usbd_status 3126 uhci_root_intr_start(xfer) 3127 usbd_xfer_handle xfer; 3128 { 3129 usbd_pipe_handle pipe = xfer->pipe; 3130 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3131 3132 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3133 xfer, xfer->length, xfer->flags)); 3134 3135 if (sc->sc_dying) 3136 return (USBD_IOERROR); 3137 3138 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3139 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3140 sc->sc_has_timo = xfer; 3141 return (USBD_IN_PROGRESS); 3142 } 3143 3144 /* Close the root interrupt pipe. */ 3145 void 3146 uhci_root_intr_close(pipe) 3147 usbd_pipe_handle pipe; 3148 { 3149 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3150 3151 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3152 sc->sc_has_timo = NULL; 3153 DPRINTF(("uhci_root_intr_close\n")); 3154 } 3155
Indexes created Mon Sep 22 05:09:51 GMT 2025