uhci.c revision 1.89
1 /* $NetBSD: uhci.c,v 1.89 2000/03/23 07:01:46 thorpej 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 defined(__FreeBSD__) 109 #if BYTE_ORDER == BIG_ENDIAN 110 #define htole32(x) (bswap32(x)) 111 #define le32toh(x) (bswap32(x)) 112 #else 113 #define htole32(x) (x) 114 #define le32toh(x) (x) 115 #endif 116 #endif 117 118 struct uhci_pipe { 119 struct usbd_pipe pipe; 120 uhci_intr_info_t *iinfo; 121 int nexttoggle; 122 /* Info needed for different pipe kinds. */ 123 union { 124 /* Control pipe */ 125 struct { 126 uhci_soft_qh_t *sqh; 127 usb_dma_t reqdma; 128 uhci_soft_td_t *setup, *stat; 129 u_int length; 130 } ctl; 131 /* Interrupt pipe */ 132 struct { 133 int npoll; 134 uhci_soft_qh_t **qhs; 135 } intr; 136 /* Bulk pipe */ 137 struct { 138 uhci_soft_qh_t *sqh; 139 u_int length; 140 int isread; 141 } bulk; 142 /* Iso pipe */ 143 struct iso { 144 uhci_soft_td_t **stds; 145 int next, inuse; 146 } iso; 147 } u; 148 }; 149 150 /* 151 * The uhci_intr_info free list can be global since they contain 152 * no dma specific data. The other free lists do. 153 */ 154 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 155 156 static void uhci_busreset __P((uhci_softc_t *)); 157 static void uhci_shutdown __P((void *v)); 158 static void uhci_power __P((int, void *)); 159 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 160 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 161 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 162 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 163 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 164 static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 165 static void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 166 #if 0 167 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 168 uhci_intr_info_t *)); 169 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 170 #endif 171 172 static void uhci_free_std_chain __P((uhci_softc_t *, 173 uhci_soft_td_t *, uhci_soft_td_t *)); 174 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 175 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 176 uhci_soft_td_t **, uhci_soft_td_t **)); 177 static void uhci_timo __P((void *)); 178 static void uhci_waitintr __P((uhci_softc_t *, 179 usbd_xfer_handle)); 180 static void uhci_check_intr __P((uhci_softc_t *, 181 uhci_intr_info_t *)); 182 static void uhci_idone __P((uhci_intr_info_t *)); 183 static void uhci_abort_xfer __P((usbd_xfer_handle, 184 usbd_status status)); 185 static void uhci_abort_xfer_end __P((void *v)); 186 static void uhci_timeout __P((void *)); 187 static void uhci_lock_frames __P((uhci_softc_t *)); 188 static void uhci_unlock_frames __P((uhci_softc_t *)); 189 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 190 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 191 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 192 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 193 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 194 195 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 196 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 197 198 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 199 u_int32_t)); 200 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 201 202 static usbd_xfer_handle uhci_allocx __P((struct usbd_bus *)); 203 static void uhci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 204 205 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 206 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 207 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 208 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 209 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 210 211 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 212 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 213 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 214 static void uhci_device_intr_close __P((usbd_pipe_handle)); 215 static void uhci_device_intr_done __P((usbd_xfer_handle)); 216 217 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 218 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 219 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 220 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 221 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 222 223 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 224 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 225 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 226 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 227 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 228 229 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 230 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 231 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 232 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 233 static void uhci_root_ctrl_done __P((usbd_xfer_handle)); 234 235 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 236 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 237 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 238 static void uhci_root_intr_close __P((usbd_pipe_handle)); 239 static void uhci_root_intr_done __P((usbd_xfer_handle)); 240 241 static usbd_status uhci_open __P((usbd_pipe_handle)); 242 static void uhci_poll __P((struct usbd_bus *)); 243 static void uhci_softintr __P((struct usbd_bus *)); 244 245 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 246 247 static void uhci_add_intr __P((uhci_softc_t *, int, 248 uhci_soft_qh_t *)); 249 static void uhci_remove_intr __P((uhci_softc_t *, int, 250 uhci_soft_qh_t *)); 251 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 252 struct uhci_pipe *pipe, int ival)); 253 254 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 255 static void uhci_noop __P((usbd_pipe_handle pipe)); 256 257 #ifdef UHCI_DEBUG 258 static void uhci_dumpregs __P((uhci_softc_t *)); 259 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 260 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 261 static void uhci_dump_tds __P((uhci_soft_td_t *)); 262 static void uhci_dump_td __P((uhci_soft_td_t *)); 263 #endif 264 265 #define UWRITE1(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 266 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 267 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 268 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 269 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 270 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 271 272 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 273 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 274 275 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 276 277 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 278 279 #define UHCI_INTR_ENDPT 1 280 281 struct usbd_bus_methods uhci_bus_methods = { 282 uhci_open, 283 uhci_softintr, 284 uhci_poll, 285 uhci_allocm, 286 uhci_freem, 287 uhci_allocx, 288 uhci_freex, 289 }; 290 291 struct usbd_pipe_methods uhci_root_ctrl_methods = { 292 uhci_root_ctrl_transfer, 293 uhci_root_ctrl_start, 294 uhci_root_ctrl_abort, 295 uhci_root_ctrl_close, 296 uhci_noop, 297 uhci_root_ctrl_done, 298 }; 299 300 struct usbd_pipe_methods uhci_root_intr_methods = { 301 uhci_root_intr_transfer, 302 uhci_root_intr_start, 303 uhci_root_intr_abort, 304 uhci_root_intr_close, 305 uhci_noop, 306 uhci_root_intr_done, 307 }; 308 309 struct usbd_pipe_methods uhci_device_ctrl_methods = { 310 uhci_device_ctrl_transfer, 311 uhci_device_ctrl_start, 312 uhci_device_ctrl_abort, 313 uhci_device_ctrl_close, 314 uhci_noop, 315 uhci_device_ctrl_done, 316 }; 317 318 struct usbd_pipe_methods uhci_device_intr_methods = { 319 uhci_device_intr_transfer, 320 uhci_device_intr_start, 321 uhci_device_intr_abort, 322 uhci_device_intr_close, 323 uhci_device_clear_toggle, 324 uhci_device_intr_done, 325 }; 326 327 struct usbd_pipe_methods uhci_device_bulk_methods = { 328 uhci_device_bulk_transfer, 329 uhci_device_bulk_start, 330 uhci_device_bulk_abort, 331 uhci_device_bulk_close, 332 uhci_device_clear_toggle, 333 uhci_device_bulk_done, 334 }; 335 336 struct usbd_pipe_methods uhci_device_isoc_methods = { 337 uhci_device_isoc_transfer, 338 uhci_device_isoc_start, 339 uhci_device_isoc_abort, 340 uhci_device_isoc_close, 341 uhci_noop, 342 uhci_device_isoc_done, 343 }; 344 345 void 346 uhci_busreset(sc) 347 uhci_softc_t *sc; 348 { 349 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 350 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 351 UHCICMD(sc, 0); /* do nothing */ 352 } 353 354 usbd_status 355 uhci_init(sc) 356 uhci_softc_t *sc; 357 { 358 usbd_status err; 359 int i, j; 360 uhci_soft_qh_t *csqh, *bsqh, *sqh; 361 uhci_soft_td_t *std; 362 363 DPRINTFN(1,("uhci_init: start\n")); 364 365 #ifdef UHCI_DEBUG 366 if (uhcidebug > 2) 367 uhci_dumpregs(sc); 368 #endif 369 370 uhci_run(sc, 0); /* stop the controller */ 371 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 372 373 uhci_busreset(sc); 374 375 /* Allocate and initialize real frame array. */ 376 err = usb_allocmem(&sc->sc_bus, 377 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 378 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 379 if (err) 380 return (err); 381 sc->sc_pframes = KERNADDR(&sc->sc_dma); 382 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 383 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 384 385 /* Allocate the dummy QH where bulk traffic will be queued. */ 386 bsqh = uhci_alloc_sqh(sc); 387 if (bsqh == NULL) 388 return (USBD_NOMEM); 389 bsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 390 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 391 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 392 393 /* Allocate the dummy QH where control traffic will be queued. */ 394 csqh = uhci_alloc_sqh(sc); 395 if (csqh == NULL) 396 return (USBD_NOMEM); 397 csqh->hlink = bsqh; 398 csqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_Q); 399 csqh->qh.qh_elink = htole32(UHCI_PTR_T); 400 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 401 402 /* 403 * Make all (virtual) frame list pointers point to the interrupt 404 * queue heads and the interrupt queue heads at the control 405 * queue head and point the physical frame list to the virtual. 406 */ 407 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 408 std = uhci_alloc_std(sc); 409 sqh = uhci_alloc_sqh(sc); 410 if (std == NULL || sqh == NULL) 411 return (USBD_NOMEM); 412 std->link.sqh = sqh; 413 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_Q); 414 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 415 std->td.td_token = htole32(0); 416 std->td.td_buffer = htole32(0); 417 sqh->hlink = csqh; 418 sqh->qh.qh_hlink = htole32(csqh->physaddr | UHCI_PTR_Q); 419 sqh->elink = 0; 420 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 421 sc->sc_vframes[i].htd = std; 422 sc->sc_vframes[i].etd = std; 423 sc->sc_vframes[i].hqh = sqh; 424 sc->sc_vframes[i].eqh = sqh; 425 for (j = i; 426 j < UHCI_FRAMELIST_COUNT; 427 j += UHCI_VFRAMELIST_COUNT) 428 sc->sc_pframes[j] = htole32(std->physaddr); 429 } 430 431 LIST_INIT(&sc->sc_intrhead); 432 433 SIMPLEQ_INIT(&sc->sc_free_xfers); 434 435 /* Set up the bus struct. */ 436 sc->sc_bus.methods = &uhci_bus_methods; 437 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 438 439 sc->sc_suspend = PWR_RESUME; 440 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 441 442 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 443 444 DPRINTFN(1,("uhci_init: enabling\n")); 445 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 446 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 447 448 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 449 450 return (uhci_run(sc, 1)); /* and here we go... */ 451 } 452 453 #if defined(__NetBSD__) || defined(__OpenBSD__) 454 int 455 uhci_activate(self, act) 456 device_ptr_t self; 457 enum devact act; 458 { 459 struct uhci_softc *sc = (struct uhci_softc *)self; 460 int rv = 0; 461 462 switch (act) { 463 case DVACT_ACTIVATE: 464 return (EOPNOTSUPP); 465 break; 466 467 case DVACT_DEACTIVATE: 468 if (sc->sc_child != NULL) 469 rv = config_deactivate(sc->sc_child); 470 break; 471 } 472 return (rv); 473 } 474 475 int 476 uhci_detach(sc, flags) 477 struct uhci_softc *sc; 478 int flags; 479 { 480 usbd_xfer_handle xfer; 481 int rv = 0; 482 483 if (sc->sc_child != NULL) 484 rv = config_detach(sc->sc_child, flags); 485 486 if (rv != 0) 487 return (rv); 488 489 powerhook_disestablish(sc->sc_powerhook); 490 shutdownhook_disestablish(sc->sc_shutdownhook); 491 492 /* Free all xfers associated with this HC. */ 493 for (;;) { 494 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 495 if (xfer == NULL) 496 break; 497 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 498 free(xfer, M_USB); 499 } 500 501 /* XXX free other data structures XXX */ 502 503 return (rv); 504 } 505 #endif 506 507 usbd_status 508 uhci_allocm(bus, dma, size) 509 struct usbd_bus *bus; 510 usb_dma_t *dma; 511 u_int32_t size; 512 { 513 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 514 dma)); 515 } 516 517 void 518 uhci_freem(bus, dma) 519 struct usbd_bus *bus; 520 usb_dma_t *dma; 521 { 522 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 523 } 524 525 usbd_xfer_handle 526 uhci_allocx(bus) 527 struct usbd_bus *bus; 528 { 529 struct uhci_softc *sc = (struct uhci_softc *)bus; 530 usbd_xfer_handle xfer; 531 532 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 533 if (xfer != NULL) 534 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 535 else 536 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 537 if (xfer != NULL) 538 memset(xfer, 0, sizeof *xfer); 539 return (xfer); 540 } 541 542 void 543 uhci_freex(bus, xfer) 544 struct usbd_bus *bus; 545 usbd_xfer_handle xfer; 546 { 547 struct uhci_softc *sc = (struct uhci_softc *)bus; 548 549 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 550 } 551 552 /* 553 * Shut down the controller when the system is going down. 554 */ 555 void 556 uhci_shutdown(v) 557 void *v; 558 { 559 uhci_softc_t *sc = v; 560 561 DPRINTF(("uhci_shutdown: stopping the HC\n")); 562 uhci_run(sc, 0); /* stop the controller */ 563 } 564 565 /* 566 * Handle suspend/resume. 567 * 568 * We need to switch to polling mode here, because this routine is 569 * called from an intterupt context. This is all right since we 570 * are almost suspended anyway. 571 */ 572 void 573 uhci_power(why, v) 574 int why; 575 void *v; 576 { 577 uhci_softc_t *sc = v; 578 int cmd; 579 int s; 580 581 s = splusb(); 582 cmd = UREAD2(sc, UHCI_CMD); 583 584 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 585 sc, why, sc->sc_suspend, cmd)); 586 587 if (why != PWR_RESUME) { 588 #ifdef UHCI_DEBUG 589 if (uhcidebug > 2) 590 uhci_dumpregs(sc); 591 #endif 592 if (sc->sc_has_timo != NULL) 593 usb_untimeout(uhci_timo, sc->sc_has_timo, 594 sc->sc_has_timo->timo_handle); 595 sc->sc_bus.use_polling++; 596 uhci_run(sc, 0); /* stop the controller */ 597 598 /* save some state if BIOS doesn't */ 599 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 600 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 601 602 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 603 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 604 sc->sc_suspend = why; 605 sc->sc_bus.use_polling--; 606 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 607 } else { 608 #ifdef DIAGNOSTIC 609 if (sc->sc_suspend == PWR_RESUME) 610 printf("uhci_power: weird, resume without suspend.\n"); 611 #endif 612 sc->sc_bus.use_polling++; 613 sc->sc_suspend = why; 614 if (cmd & UHCI_CMD_RS) 615 uhci_run(sc, 0); /* in case BIOS has started it */ 616 617 /* restore saved state */ 618 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 619 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 620 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 621 622 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 623 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 624 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 625 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 626 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 627 uhci_run(sc, 1); /* and start traffic again */ 628 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 629 sc->sc_bus.use_polling--; 630 if (sc->sc_has_timo != NULL) 631 usb_timeout(uhci_timo, sc->sc_has_timo, 632 sc->sc_ival, sc->sc_has_timo->timo_handle); 633 #ifdef UHCI_DEBUG 634 if (uhcidebug > 2) 635 uhci_dumpregs(sc); 636 #endif 637 } 638 splx(s); 639 } 640 641 #ifdef UHCI_DEBUG 642 static void 643 uhci_dumpregs(sc) 644 uhci_softc_t *sc; 645 { 646 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 647 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 648 USBDEVNAME(sc->sc_bus.bdev), 649 UREAD2(sc, UHCI_CMD), 650 UREAD2(sc, UHCI_STS), 651 UREAD2(sc, UHCI_INTR), 652 UREAD2(sc, UHCI_FRNUM), 653 UREAD4(sc, UHCI_FLBASEADDR), 654 UREAD1(sc, UHCI_SOF), 655 UREAD2(sc, UHCI_PORTSC1), 656 UREAD2(sc, UHCI_PORTSC2))); 657 } 658 659 void 660 uhci_dump_td(p) 661 uhci_soft_td_t *p; 662 { 663 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 664 "token=0x%08lx buffer=0x%08lx\n", 665 p, (long)p->physaddr, 666 (long)le32toh(p->td.td_link), 667 (long)le32toh(p->td.td_status), 668 (long)le32toh(p->td.td_token), 669 (long)le32toh(p->td.td_buffer))); 670 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 671 "D=%d,maxlen=%d\n", 672 (int)le32toh(p->td.td_link), 673 "\20\1T\2Q\3VF", 674 (int)le32toh(p->td.td_status), 675 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 676 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 677 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 678 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 679 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 680 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 681 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 682 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 683 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 684 } 685 686 void 687 uhci_dump_qh(sqh) 688 uhci_soft_qh_t *sqh; 689 { 690 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 691 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 692 le32toh(sqh->qh.qh_elink))); 693 } 694 695 696 #if 0 697 void 698 uhci_dump() 699 { 700 uhci_softc_t *sc = uhci; 701 702 uhci_dumpregs(sc); 703 printf("intrs=%d\n", sc->sc_bus.no_intrs); 704 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 705 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 706 } 707 #endif 708 709 710 void 711 uhci_dump_qhs(sqh) 712 uhci_soft_qh_t *sqh; 713 { 714 uhci_dump_qh(sqh); 715 716 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 717 * Traverses sideways first, then down. 718 * 719 * QH1 720 * QH2 721 * No QH 722 * TD2.1 723 * TD2.2 724 * TD1.1 725 * etc. 726 * 727 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 728 */ 729 730 731 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 732 uhci_dump_qhs(sqh->hlink); 733 else 734 DPRINTF(("No QH\n")); 735 736 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 737 uhci_dump_tds(sqh->elink); 738 else 739 DPRINTF(("No TD\n")); 740 } 741 742 void 743 uhci_dump_tds(std) 744 uhci_soft_td_t *std; 745 { 746 uhci_soft_td_t *td; 747 748 for(td = std; td != NULL; td = td->link.std) { 749 uhci_dump_td(td); 750 751 /* Check whether the link pointer in this TD marks 752 * the link pointer as end of queue. This avoids 753 * printing the free list in case the queue/TD has 754 * already been moved there (seatbelt). 755 */ 756 if (le32toh(td->td.td_link) & UHCI_PTR_T || 757 le32toh(td->td.td_link) == 0) 758 break; 759 } 760 } 761 #endif 762 763 /* 764 * This routine is executed periodically and simulates interrupts 765 * from the root controller interrupt pipe for port status change. 766 */ 767 void 768 uhci_timo(addr) 769 void *addr; 770 { 771 usbd_xfer_handle xfer = addr; 772 usbd_pipe_handle pipe = xfer->pipe; 773 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 774 int s; 775 u_char *p; 776 777 DPRINTFN(20, ("uhci_timo\n")); 778 779 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 780 781 p = KERNADDR(&xfer->dmabuf); 782 p[0] = 0; 783 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 784 p[0] |= 1<<1; 785 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 786 p[0] |= 1<<2; 787 if (p[0] == 0) 788 /* No change, try again in a while */ 789 return; 790 791 xfer->actlen = 1; 792 xfer->status = USBD_NORMAL_COMPLETION; 793 s = splusb(); 794 xfer->hcpriv = 0; 795 xfer->device->bus->intr_context++; 796 usb_transfer_complete(xfer); 797 xfer->device->bus->intr_context--; 798 splx(s); 799 } 800 801 void 802 uhci_root_intr_done(xfer) 803 usbd_xfer_handle xfer; 804 { 805 } 806 807 void 808 uhci_root_ctrl_done(xfer) 809 usbd_xfer_handle xfer; 810 { 811 } 812 813 void 814 uhci_lock_frames(sc) 815 uhci_softc_t *sc; 816 { 817 int s = splusb(); 818 819 while (sc->sc_vflock & UHCI_HAS_LOCK) { 820 sc->sc_vflock |= UHCI_WANT_LOCK; 821 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 822 } 823 sc->sc_vflock = UHCI_HAS_LOCK; 824 splx(s); 825 } 826 827 void 828 uhci_unlock_frames(sc) 829 uhci_softc_t *sc; 830 { 831 int s = splusb(); 832 833 sc->sc_vflock &= ~UHCI_HAS_LOCK; 834 if (sc->sc_vflock & UHCI_WANT_LOCK) 835 wakeup(&sc->sc_vflock); 836 splx(s); 837 } 838 839 /* 840 * Allocate an interrupt information struct. A free list is kept 841 * for fast allocation. 842 */ 843 uhci_intr_info_t * 844 uhci_alloc_intr_info(sc) 845 uhci_softc_t *sc; 846 { 847 uhci_intr_info_t *ii; 848 849 ii = LIST_FIRST(&uhci_ii_free); 850 if (ii) 851 LIST_REMOVE(ii, list); 852 else { 853 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 854 } 855 ii->sc = sc; 856 #if defined(__FreeBSD__) 857 callout_handle_init(&ii->timeout_handle); 858 #endif 859 860 return ii; 861 } 862 863 void 864 uhci_free_intr_info(ii) 865 uhci_intr_info_t *ii; 866 { 867 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 868 } 869 870 /* Add control QH, called at splusb(). */ 871 void 872 uhci_add_ctrl(sc, sqh) 873 uhci_softc_t *sc; 874 uhci_soft_qh_t *sqh; 875 { 876 uhci_soft_qh_t *eqh; 877 878 SPLUSBCHECK; 879 880 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 881 eqh = sc->sc_ctl_end; 882 sqh->hlink = eqh->hlink; 883 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 884 eqh->hlink = sqh; 885 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 886 sc->sc_ctl_end = sqh; 887 } 888 889 /* Remove control QH, called at splusb(). */ 890 void 891 uhci_remove_ctrl(sc, sqh) 892 uhci_softc_t *sc; 893 uhci_soft_qh_t *sqh; 894 { 895 uhci_soft_qh_t *pqh; 896 897 SPLUSBCHECK; 898 899 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 900 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 901 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 902 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 903 printf("uhci_remove_ctrl: QH not found\n"); 904 return; 905 } 906 #else 907 ; 908 #endif 909 pqh->hlink = sqh->hlink; 910 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 911 if (sc->sc_ctl_end == sqh) 912 sc->sc_ctl_end = pqh; 913 } 914 915 /* Add bulk QH, called at splusb(). */ 916 void 917 uhci_add_bulk(sc, sqh) 918 uhci_softc_t *sc; 919 uhci_soft_qh_t *sqh; 920 { 921 uhci_soft_qh_t *eqh; 922 923 SPLUSBCHECK; 924 925 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 926 eqh = sc->sc_bulk_end; 927 sqh->hlink = eqh->hlink; 928 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 929 eqh->hlink = sqh; 930 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 931 sc->sc_bulk_end = sqh; 932 } 933 934 /* Remove bulk QH, called at splusb(). */ 935 void 936 uhci_remove_bulk(sc, sqh) 937 uhci_softc_t *sc; 938 uhci_soft_qh_t *sqh; 939 { 940 uhci_soft_qh_t *pqh; 941 942 SPLUSBCHECK; 943 944 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 945 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 946 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 947 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 948 printf("uhci_remove_bulk: QH not found\n"); 949 return; 950 } 951 #else 952 ; 953 #endif 954 pqh->hlink = sqh->hlink; 955 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 956 if (sc->sc_bulk_end == sqh) 957 sc->sc_bulk_end = pqh; 958 } 959 960 int 961 uhci_intr(arg) 962 void *arg; 963 { 964 uhci_softc_t *sc = arg; 965 int status; 966 int ack; 967 968 #ifdef UHCI_DEBUG 969 if (uhcidebug > 15) { 970 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 971 uhci_dumpregs(sc); 972 } 973 #endif 974 975 status = UREAD2(sc, UHCI_STS); 976 if (status == 0) /* The interrupt was not for us. */ 977 return (0); 978 979 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 980 if (sc->sc_suspend != PWR_RESUME) 981 printf("uhci_intr: suspended sts=0x%x\n", status); 982 #endif 983 984 ack = 0; 985 if (status & UHCI_STS_USBINT) 986 ack |= UHCI_STS_USBINT; 987 if (status & UHCI_STS_USBEI) 988 ack |= UHCI_STS_USBEI; 989 if (status & UHCI_STS_RD) { 990 ack |= UHCI_STS_RD; 991 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 992 } 993 if (status & UHCI_STS_HSE) { 994 ack |= UHCI_STS_HSE; 995 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 996 } 997 if (status & UHCI_STS_HCPE) { 998 ack |= UHCI_STS_HCPE; 999 printf("%s: host controller process error\n", 1000 USBDEVNAME(sc->sc_bus.bdev)); 1001 } 1002 if (status & UHCI_STS_HCH) { 1003 /* no acknowledge needed */ 1004 printf("%s: host controller halted\n", 1005 USBDEVNAME(sc->sc_bus.bdev)); 1006 sc->sc_dying = 1; 1007 } 1008 1009 if (ack) /* acknowledge the ints */ 1010 UWRITE2(sc, UHCI_STS, ack); 1011 else /* nothing to acknowledge */ 1012 return (0); 1013 1014 sc->sc_bus.no_intrs++; 1015 usb_schedsoftintr(&sc->sc_bus); 1016 1017 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1018 1019 return (1); 1020 } 1021 1022 void 1023 uhci_softintr(bus) 1024 struct usbd_bus *bus; 1025 { 1026 uhci_softc_t *sc = (uhci_softc_t *)bus; 1027 uhci_intr_info_t *ii; 1028 1029 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1030 1031 sc->sc_bus.intr_context++; 1032 1033 /* 1034 * Interrupts on UHCI really suck. When the host controller 1035 * interrupts because a transfer is completed there is no 1036 * way of knowing which transfer it was. You can scan down 1037 * the TDs and QHs of the previous frame to limit the search, 1038 * but that assumes that the interrupt was not delayed by more 1039 * than 1 ms, which may not always be true (e.g. after debug 1040 * output on a slow console). 1041 * We scan all interrupt descriptors to see if any have 1042 * completed. 1043 */ 1044 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1045 uhci_check_intr(sc, ii); 1046 1047 sc->sc_bus.intr_context--; 1048 } 1049 1050 /* Check for an interrupt. */ 1051 void 1052 uhci_check_intr(sc, ii) 1053 uhci_softc_t *sc; 1054 uhci_intr_info_t *ii; 1055 { 1056 uhci_soft_td_t *std, *lstd; 1057 u_int32_t status; 1058 1059 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1060 #ifdef DIAGNOSTIC 1061 if (ii == NULL) { 1062 printf("uhci_check_intr: no ii? %p\n", ii); 1063 return; 1064 } 1065 #endif 1066 if (ii->stdstart == NULL) 1067 return; 1068 lstd = ii->stdend; 1069 #ifdef DIAGNOSTIC 1070 if (lstd == NULL) { 1071 printf("uhci_check_intr: std==0\n"); 1072 return; 1073 } 1074 #endif 1075 /* 1076 * If the last TD is still active we need to check whether there 1077 * is a an error somewhere in the middle, or whether there was a 1078 * short packet (SPD and not ACTIVE). 1079 */ 1080 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1081 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1082 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1083 status = le32toh(std->td.td_status); 1084 /* If there's an active TD the xfer isn't done. */ 1085 if (status & UHCI_TD_ACTIVE) 1086 break; 1087 /* Any kind of error makes the xfer done. */ 1088 if (status & UHCI_TD_STALLED) 1089 goto done; 1090 /* We want short packets, and it is short: it's done */ 1091 if ((status & UHCI_TD_SPD) && 1092 UHCI_TD_GET_ACTLEN(status) < 1093 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1094 goto done; 1095 } 1096 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1097 ii, ii->stdstart)); 1098 return; 1099 } 1100 done: 1101 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1102 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1103 uhci_idone(ii); 1104 } 1105 1106 /* Called at splusb() */ 1107 void 1108 uhci_idone(ii) 1109 uhci_intr_info_t *ii; 1110 { 1111 usbd_xfer_handle xfer = ii->xfer; 1112 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1113 uhci_soft_td_t *std; 1114 u_int32_t status = 0, nstatus; 1115 int actlen; 1116 1117 #ifdef DIAGNOSTIC 1118 { 1119 int s = splhigh(); 1120 if (ii->isdone) { 1121 splx(s); 1122 printf("uhci_idone: ii=%p is done!\n", ii); 1123 return; 1124 } 1125 ii->isdone = 1; 1126 splx(s); 1127 } 1128 #endif 1129 1130 if (xfer->status == USBD_CANCELLED || 1131 xfer->status == USBD_TIMEOUT) { 1132 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1133 return; 1134 } 1135 1136 if (xfer->nframes != 0) { 1137 /* Isoc transfer, do things differently. */ 1138 uhci_soft_td_t **stds = upipe->u.iso.stds; 1139 int i, n, nframes; 1140 1141 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1142 1143 nframes = xfer->nframes; 1144 actlen = 0; 1145 n = xfer->hcprivint; 1146 for (i = 0; i < nframes; i++) { 1147 std = stds[n]; 1148 #ifdef UHCI_DEBUG 1149 if (uhcidebug > 5) { 1150 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1151 uhci_dump_td(std); 1152 } 1153 #endif 1154 if (++n >= UHCI_VFRAMELIST_COUNT) 1155 n = 0; 1156 status = le32toh(std->td.td_status); 1157 actlen += UHCI_TD_GET_ACTLEN(status); 1158 } 1159 upipe->u.iso.inuse -= nframes; 1160 xfer->actlen = actlen; 1161 xfer->status = USBD_NORMAL_COMPLETION; 1162 xfer->hcpriv = ii; 1163 usb_transfer_complete(xfer); 1164 return; 1165 } 1166 1167 #ifdef UHCI_DEBUG 1168 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1169 ii, xfer, upipe)); 1170 if (uhcidebug > 10) 1171 uhci_dump_tds(ii->stdstart); 1172 #endif 1173 1174 /* The transfer is done, compute actual length and status. */ 1175 actlen = 0; 1176 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1177 nstatus = le32toh(std->td.td_status); 1178 if (nstatus & UHCI_TD_ACTIVE) 1179 break; 1180 1181 status = nstatus; 1182 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1183 UHCI_TD_PID_SETUP) 1184 actlen += UHCI_TD_GET_ACTLEN(status); 1185 } 1186 /* If there are left over TDs we need to update the toggle. */ 1187 if (std != NULL) 1188 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1189 1190 status &= UHCI_TD_ERROR; 1191 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1192 actlen, status)); 1193 xfer->actlen = actlen; 1194 if (status != 0) { 1195 DPRINTFN((status == UHCI_TD_STALLED)*10, 1196 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1197 "status 0x%b\n", 1198 xfer->pipe->device->address, 1199 xfer->pipe->endpoint->edesc->bEndpointAddress, 1200 (int)status, 1201 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1202 "STALLED\30ACTIVE")); 1203 if (status == UHCI_TD_STALLED) 1204 xfer->status = USBD_STALLED; 1205 else 1206 xfer->status = USBD_IOERROR; /* more info XXX */ 1207 } else { 1208 xfer->status = USBD_NORMAL_COMPLETION; 1209 } 1210 xfer->hcpriv = ii; 1211 usb_transfer_complete(xfer); 1212 } 1213 1214 /* 1215 * Called when a request does not complete. 1216 */ 1217 void 1218 uhci_timeout(addr) 1219 void *addr; 1220 { 1221 uhci_intr_info_t *ii = addr; 1222 1223 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1224 1225 #ifdef UHCI_DEBUG 1226 if (uhcidebug > 10) 1227 uhci_dump_tds(ii->stdstart); 1228 #endif 1229 1230 ii->xfer->device->bus->intr_context++; 1231 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1232 ii->xfer->device->bus->intr_context--; 1233 } 1234 1235 /* 1236 * Wait here until controller claims to have an interrupt. 1237 * Then call uhci_intr and return. Use timeout to avoid waiting 1238 * too long. 1239 * Only used during boot when interrupts are not enabled yet. 1240 */ 1241 void 1242 uhci_waitintr(sc, xfer) 1243 uhci_softc_t *sc; 1244 usbd_xfer_handle xfer; 1245 { 1246 int timo = xfer->timeout; 1247 uhci_intr_info_t *ii; 1248 1249 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1250 1251 xfer->status = USBD_IN_PROGRESS; 1252 for (; timo >= 0; timo--) { 1253 usb_delay_ms(&sc->sc_bus, 1); 1254 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1255 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1256 uhci_intr(sc); 1257 if (xfer->status != USBD_IN_PROGRESS) 1258 return; 1259 } 1260 } 1261 1262 /* Timeout */ 1263 DPRINTF(("uhci_waitintr: timeout\n")); 1264 for (ii = LIST_FIRST(&sc->sc_intrhead); 1265 ii != NULL && ii->xfer != xfer; 1266 ii = LIST_NEXT(ii, list)) 1267 ; 1268 #ifdef DIAGNOSTIC 1269 if (ii == NULL) 1270 panic("uhci_waitintr: lost intr_info\n"); 1271 #endif 1272 uhci_idone(ii); 1273 } 1274 1275 void 1276 uhci_poll(bus) 1277 struct usbd_bus *bus; 1278 { 1279 uhci_softc_t *sc = (uhci_softc_t *)bus; 1280 1281 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1282 uhci_intr(sc); 1283 } 1284 1285 #if 0 1286 void 1287 uhci_reset(p) 1288 void *p; 1289 { 1290 uhci_softc_t *sc = p; 1291 int n; 1292 1293 UHCICMD(sc, UHCI_CMD_HCRESET); 1294 /* The reset bit goes low when the controller is done. */ 1295 for (n = 0; n < UHCI_RESET_TIMEOUT && 1296 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1297 delay(100); 1298 if (n >= UHCI_RESET_TIMEOUT) 1299 printf("%s: controller did not reset\n", 1300 USBDEVNAME(sc->sc_bus.bdev)); 1301 } 1302 #endif 1303 1304 usbd_status 1305 uhci_run(sc, run) 1306 uhci_softc_t *sc; 1307 int run; 1308 { 1309 int s, n, running; 1310 u_int16_t cmd; 1311 1312 run = run != 0; 1313 s = splusb(); 1314 DPRINTF(("uhci_run: setting run=%d\n", run)); 1315 cmd = UREAD2(sc, UHCI_CMD); 1316 if (run) 1317 cmd |= UHCI_CMD_RS; 1318 else 1319 cmd &= ~UHCI_CMD_RS; 1320 UHCICMD(sc, cmd); 1321 for(n = 0; n < 10; n++) { 1322 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1323 /* return when we've entered the state we want */ 1324 if (run == running) { 1325 splx(s); 1326 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1327 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1328 return (USBD_NORMAL_COMPLETION); 1329 } 1330 usb_delay_ms(&sc->sc_bus, 1); 1331 } 1332 splx(s); 1333 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1334 run ? "start" : "stop"); 1335 return (USBD_IOERROR); 1336 } 1337 1338 /* 1339 * Memory management routines. 1340 * uhci_alloc_std allocates TDs 1341 * uhci_alloc_sqh allocates QHs 1342 * These two routines do their own free list management, 1343 * partly for speed, partly because allocating DMAable memory 1344 * has page size granularaity so much memory would be wasted if 1345 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1346 */ 1347 1348 uhci_soft_td_t * 1349 uhci_alloc_std(sc) 1350 uhci_softc_t *sc; 1351 { 1352 uhci_soft_td_t *std; 1353 usbd_status err; 1354 int i, offs; 1355 usb_dma_t dma; 1356 1357 if (sc->sc_freetds == NULL) { 1358 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1359 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1360 UHCI_TD_ALIGN, &dma); 1361 if (err) 1362 return (0); 1363 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1364 offs = i * UHCI_STD_SIZE; 1365 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1366 std->physaddr = DMAADDR(&dma) + offs; 1367 std->link.std = sc->sc_freetds; 1368 sc->sc_freetds = std; 1369 } 1370 } 1371 std = sc->sc_freetds; 1372 sc->sc_freetds = std->link.std; 1373 memset(&std->td, 0, sizeof(uhci_td_t)); 1374 return std; 1375 } 1376 1377 void 1378 uhci_free_std(sc, std) 1379 uhci_softc_t *sc; 1380 uhci_soft_td_t *std; 1381 { 1382 #ifdef DIAGNOSTIC 1383 #define TD_IS_FREE 0x12345678 1384 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1385 printf("uhci_free_std: freeing free TD %p\n", std); 1386 return; 1387 } 1388 std->td.td_token = htole32(TD_IS_FREE); 1389 #endif 1390 std->link.std = sc->sc_freetds; 1391 sc->sc_freetds = std; 1392 } 1393 1394 uhci_soft_qh_t * 1395 uhci_alloc_sqh(sc) 1396 uhci_softc_t *sc; 1397 { 1398 uhci_soft_qh_t *sqh; 1399 usbd_status err; 1400 int i, offs; 1401 usb_dma_t dma; 1402 1403 if (sc->sc_freeqhs == NULL) { 1404 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1405 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1406 UHCI_QH_ALIGN, &dma); 1407 if (err) 1408 return (0); 1409 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1410 offs = i * UHCI_SQH_SIZE; 1411 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1412 sqh->physaddr = DMAADDR(&dma) + offs; 1413 sqh->hlink = sc->sc_freeqhs; 1414 sc->sc_freeqhs = sqh; 1415 } 1416 } 1417 sqh = sc->sc_freeqhs; 1418 sc->sc_freeqhs = sqh->hlink; 1419 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1420 return (sqh); 1421 } 1422 1423 void 1424 uhci_free_sqh(sc, sqh) 1425 uhci_softc_t *sc; 1426 uhci_soft_qh_t *sqh; 1427 { 1428 sqh->hlink = sc->sc_freeqhs; 1429 sc->sc_freeqhs = sqh; 1430 } 1431 1432 #if 0 1433 /* 1434 * Enter a list of transfers onto a control queue. 1435 * Called at splusb() 1436 */ 1437 void 1438 uhci_enter_ctl_q(sc, sqh, ii) 1439 uhci_softc_t *sc; 1440 uhci_soft_qh_t *sqh; 1441 uhci_intr_info_t *ii; 1442 { 1443 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1444 1445 } 1446 #endif 1447 1448 void 1449 uhci_free_std_chain(sc, std, stdend) 1450 uhci_softc_t *sc; 1451 uhci_soft_td_t *std; 1452 uhci_soft_td_t *stdend; 1453 { 1454 uhci_soft_td_t *p; 1455 1456 for (; std != stdend; std = p) { 1457 p = std->link.std; 1458 uhci_free_std(sc, std); 1459 } 1460 } 1461 1462 usbd_status 1463 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1464 struct uhci_pipe *upipe; 1465 uhci_softc_t *sc; 1466 int len, rd; 1467 u_int16_t flags; 1468 usb_dma_t *dma; 1469 uhci_soft_td_t **sp, **ep; 1470 { 1471 uhci_soft_td_t *p, *lastp; 1472 uhci_physaddr_t lastlink; 1473 int i, ntd, l, tog, maxp; 1474 u_int32_t status; 1475 int addr = upipe->pipe.device->address; 1476 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1477 1478 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1479 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1480 upipe->pipe.device->lowspeed, flags)); 1481 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1482 if (maxp == 0) { 1483 printf("uhci_alloc_std_chain: maxp=0\n"); 1484 return (USBD_INVAL); 1485 } 1486 ntd = (len + maxp - 1) / maxp; 1487 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1488 ntd++; 1489 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1490 if (ntd == 0) { 1491 *sp = *ep = 0; 1492 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1493 return (USBD_NORMAL_COMPLETION); 1494 } 1495 tog = upipe->nexttoggle; 1496 if (ntd % 2 == 0) 1497 tog ^= 1; 1498 upipe->nexttoggle = tog ^ 1; 1499 lastp = 0; 1500 lastlink = UHCI_PTR_T; 1501 ntd--; 1502 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1503 if (upipe->pipe.device->lowspeed) 1504 status |= UHCI_TD_LS; 1505 if (flags & USBD_SHORT_XFER_OK) 1506 status |= UHCI_TD_SPD; 1507 for (i = ntd; i >= 0; i--) { 1508 p = uhci_alloc_std(sc); 1509 if (p == NULL) { 1510 uhci_free_std_chain(sc, lastp, 0); 1511 return (USBD_NOMEM); 1512 } 1513 p->link.std = lastp; 1514 if (lastlink == UHCI_PTR_T) 1515 p->td.td_link = htole32(lastlink); 1516 else 1517 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1518 lastp = p; 1519 lastlink = p->physaddr; 1520 p->td.td_status = htole32(status); 1521 if (i == ntd) { 1522 /* last TD */ 1523 l = len % maxp; 1524 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1525 l = maxp; 1526 *ep = p; 1527 } else 1528 l = maxp; 1529 p->td.td_token = 1530 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1531 UHCI_TD_OUT(l, endpt, addr, tog)); 1532 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1533 tog ^= 1; 1534 } 1535 *sp = lastp; 1536 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1537 upipe->nexttoggle)); 1538 return (USBD_NORMAL_COMPLETION); 1539 } 1540 1541 void 1542 uhci_device_clear_toggle(pipe) 1543 usbd_pipe_handle pipe; 1544 { 1545 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1546 upipe->nexttoggle = 0; 1547 } 1548 1549 void 1550 uhci_noop(pipe) 1551 usbd_pipe_handle pipe; 1552 { 1553 } 1554 1555 usbd_status 1556 uhci_device_bulk_transfer(xfer) 1557 usbd_xfer_handle xfer; 1558 { 1559 usbd_status err; 1560 1561 /* Insert last in queue. */ 1562 err = usb_insert_transfer(xfer); 1563 if (err) 1564 return (err); 1565 1566 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1567 * start first 1568 */ 1569 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1570 } 1571 1572 usbd_status 1573 uhci_device_bulk_start(xfer) 1574 usbd_xfer_handle xfer; 1575 { 1576 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1577 usbd_device_handle dev = upipe->pipe.device; 1578 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1579 uhci_intr_info_t *ii = upipe->iinfo; 1580 uhci_soft_td_t *data, *dataend; 1581 uhci_soft_qh_t *sqh; 1582 usbd_status err; 1583 int len, isread, endpt; 1584 int s; 1585 1586 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1587 xfer, xfer->length, xfer->flags)); 1588 1589 if (sc->sc_dying) 1590 return (USBD_IOERROR); 1591 1592 #ifdef DIAGNOSTIC 1593 if (xfer->rqflags & URQ_REQUEST) 1594 panic("uhci_device_bulk_transfer: a request\n"); 1595 #endif 1596 1597 len = xfer->length; 1598 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1599 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1600 sqh = upipe->u.bulk.sqh; 1601 1602 upipe->u.bulk.isread = isread; 1603 upipe->u.bulk.length = len; 1604 1605 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1606 &xfer->dmabuf, &data, &dataend); 1607 if (err) 1608 return (err); 1609 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1610 1611 #ifdef UHCI_DEBUG 1612 if (uhcidebug > 8) { 1613 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1614 uhci_dump_tds(data); 1615 } 1616 #endif 1617 1618 /* Set up interrupt info. */ 1619 ii->xfer = xfer; 1620 ii->stdstart = data; 1621 ii->stdend = dataend; 1622 #if defined(__FreeBSD__) 1623 callout_handle_init(&ii->timeout_handle); 1624 #endif 1625 #ifdef DIAGNOSTIC 1626 if (!ii->isdone) { 1627 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1628 } 1629 ii->isdone = 0; 1630 #endif 1631 1632 sqh->elink = data; 1633 sqh->qh.qh_elink = htole32(data->physaddr); 1634 sqh->intr_info = ii; 1635 1636 s = splusb(); 1637 uhci_add_bulk(sc, sqh); 1638 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1639 1640 if (xfer->timeout && !sc->sc_bus.use_polling) { 1641 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1642 ii->timeout_handle); 1643 } 1644 splx(s); 1645 1646 #ifdef UHCI_DEBUG 1647 if (uhcidebug > 10) { 1648 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1649 uhci_dump_tds(data); 1650 } 1651 #endif 1652 1653 if (sc->sc_bus.use_polling) 1654 uhci_waitintr(sc, xfer); 1655 1656 return (USBD_IN_PROGRESS); 1657 } 1658 1659 /* Abort a device bulk request. */ 1660 void 1661 uhci_device_bulk_abort(xfer) 1662 usbd_xfer_handle xfer; 1663 { 1664 DPRINTF(("uhci_device_bulk_abort:\n")); 1665 uhci_abort_xfer(xfer, USBD_CANCELLED); 1666 } 1667 1668 void 1669 uhci_abort_xfer(xfer, status) 1670 usbd_xfer_handle xfer; 1671 usbd_status status; 1672 { 1673 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1674 uhci_intr_info_t *ii = upipe->iinfo; 1675 uhci_soft_td_t *std; 1676 1677 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1678 1679 /* Make interrupt routine ignore it, */ 1680 xfer->status = status; 1681 1682 /* don't timeout, */ 1683 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1684 1685 /* make hardware ignore it, */ 1686 for (std = ii->stdstart; std != 0; std = std->link.std) 1687 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1688 1689 xfer->hcpriv = ii; 1690 1691 #if 1 1692 /* Make sure hardware has completed. */ 1693 if (xfer->device->bus->intr_context) { 1694 /* We have no process context, so we can't use tsleep(). */ 1695 callout_reset(&xfer->abort_handle, hz / USB_FRAMES_PER_SECOND, 1696 uhci_abort_xfer_end, xfer); 1697 } else { 1698 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1699 KASSERT(intr_nesting_level == 0, 1700 ("ohci_abort_req in interrupt context")); 1701 #endif 1702 usb_delay_ms(xfer->pipe->device->bus, 1); 1703 /* and call final part of interrupt handler. */ 1704 uhci_abort_xfer_end(xfer); 1705 } 1706 #else 1707 delay(1000); 1708 uhci_abort_xfer_end(xfer); 1709 #endif 1710 } 1711 1712 void 1713 uhci_abort_xfer_end(v) 1714 void *v; 1715 { 1716 usbd_xfer_handle xfer = v; 1717 int s; 1718 1719 s = splusb(); 1720 usb_transfer_complete(xfer); 1721 splx(s); 1722 } 1723 1724 /* Close a device bulk pipe. */ 1725 void 1726 uhci_device_bulk_close(pipe) 1727 usbd_pipe_handle pipe; 1728 { 1729 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1730 usbd_device_handle dev = upipe->pipe.device; 1731 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1732 1733 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1734 uhci_free_intr_info(upipe->iinfo); 1735 /* XXX free other resources */ 1736 } 1737 1738 usbd_status 1739 uhci_device_ctrl_transfer(xfer) 1740 usbd_xfer_handle xfer; 1741 { 1742 usbd_status err; 1743 1744 /* Insert last in queue. */ 1745 err = usb_insert_transfer(xfer); 1746 if (err) 1747 return (err); 1748 1749 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1750 * start first 1751 */ 1752 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1753 } 1754 1755 usbd_status 1756 uhci_device_ctrl_start(xfer) 1757 usbd_xfer_handle xfer; 1758 { 1759 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1760 usbd_status err; 1761 1762 if (sc->sc_dying) 1763 return (USBD_IOERROR); 1764 1765 #ifdef DIAGNOSTIC 1766 if (!(xfer->rqflags & URQ_REQUEST)) 1767 panic("uhci_device_ctrl_transfer: not a request\n"); 1768 #endif 1769 1770 err = uhci_device_request(xfer); 1771 if (err) 1772 return (err); 1773 1774 if (sc->sc_bus.use_polling) 1775 uhci_waitintr(sc, xfer); 1776 return (USBD_IN_PROGRESS); 1777 } 1778 1779 usbd_status 1780 uhci_device_intr_transfer(xfer) 1781 usbd_xfer_handle xfer; 1782 { 1783 usbd_status err; 1784 1785 /* Insert last in queue. */ 1786 err = usb_insert_transfer(xfer); 1787 if (err) 1788 return (err); 1789 1790 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1791 * start first 1792 */ 1793 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1794 } 1795 1796 usbd_status 1797 uhci_device_intr_start(xfer) 1798 usbd_xfer_handle xfer; 1799 { 1800 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1801 usbd_device_handle dev = upipe->pipe.device; 1802 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1803 uhci_intr_info_t *ii = upipe->iinfo; 1804 uhci_soft_td_t *data, *dataend; 1805 uhci_soft_qh_t *sqh; 1806 usbd_status err; 1807 int i, s; 1808 1809 if (sc->sc_dying) 1810 return (USBD_IOERROR); 1811 1812 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1813 xfer, xfer->length, xfer->flags)); 1814 1815 #ifdef DIAGNOSTIC 1816 if (xfer->rqflags & URQ_REQUEST) 1817 panic("uhci_device_intr_transfer: a request\n"); 1818 #endif 1819 1820 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1821 &xfer->dmabuf, &data, &dataend); 1822 if (err) 1823 return (err); 1824 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1825 1826 #ifdef UHCI_DEBUG 1827 if (uhcidebug > 10) { 1828 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1829 uhci_dump_tds(data); 1830 uhci_dump_qh(upipe->u.intr.qhs[0]); 1831 } 1832 #endif 1833 1834 s = splusb(); 1835 /* Set up interrupt info. */ 1836 ii->xfer = xfer; 1837 ii->stdstart = data; 1838 ii->stdend = dataend; 1839 #if defined(__FreeBSD__) 1840 callout_handle_init(&ii->timeout_handle); 1841 #endif 1842 #ifdef DIAGNOSTIC 1843 if (!ii->isdone) { 1844 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1845 } 1846 ii->isdone = 0; 1847 #endif 1848 1849 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1850 upipe->u.intr.qhs[0])); 1851 for (i = 0; i < upipe->u.intr.npoll; i++) { 1852 sqh = upipe->u.intr.qhs[i]; 1853 sqh->elink = data; 1854 sqh->qh.qh_elink = htole32(data->physaddr); 1855 } 1856 splx(s); 1857 1858 #ifdef UHCI_DEBUG 1859 if (uhcidebug > 10) { 1860 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1861 uhci_dump_tds(data); 1862 uhci_dump_qh(upipe->u.intr.qhs[0]); 1863 } 1864 #endif 1865 1866 return (USBD_IN_PROGRESS); 1867 } 1868 1869 /* Abort a device control request. */ 1870 void 1871 uhci_device_ctrl_abort(xfer) 1872 usbd_xfer_handle xfer; 1873 { 1874 DPRINTF(("uhci_device_ctrl_abort:\n")); 1875 uhci_abort_xfer(xfer, USBD_CANCELLED); 1876 } 1877 1878 /* Close a device control pipe. */ 1879 void 1880 uhci_device_ctrl_close(pipe) 1881 usbd_pipe_handle pipe; 1882 { 1883 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1884 1885 uhci_free_intr_info(upipe->iinfo); 1886 /* XXX free other resources? */ 1887 } 1888 1889 /* Abort a device interrupt request. */ 1890 void 1891 uhci_device_intr_abort(xfer) 1892 usbd_xfer_handle xfer; 1893 { 1894 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1895 if (xfer->pipe->intrxfer == xfer) { 1896 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1897 xfer->pipe->intrxfer = 0; 1898 } 1899 uhci_abort_xfer(xfer, USBD_CANCELLED); 1900 } 1901 1902 /* Close a device interrupt pipe. */ 1903 void 1904 uhci_device_intr_close(pipe) 1905 usbd_pipe_handle pipe; 1906 { 1907 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1908 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1909 int i, s, npoll; 1910 1911 upipe->iinfo->stdstart = 0; /* inactive */ 1912 1913 /* Unlink descriptors from controller data structures. */ 1914 npoll = upipe->u.intr.npoll; 1915 uhci_lock_frames(sc); 1916 for (i = 0; i < npoll; i++) 1917 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1918 upipe->u.intr.qhs[i]); 1919 uhci_unlock_frames(sc); 1920 1921 /* 1922 * We now have to wait for any activity on the physical 1923 * descriptors to stop. 1924 */ 1925 usb_delay_ms(&sc->sc_bus, 2); 1926 1927 for(i = 0; i < npoll; i++) 1928 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1929 free(upipe->u.intr.qhs, M_USBHC); 1930 1931 s = splusb(); 1932 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1933 splx(s); 1934 uhci_free_intr_info(upipe->iinfo); 1935 1936 /* XXX free other resources */ 1937 } 1938 1939 usbd_status 1940 uhci_device_request(xfer) 1941 usbd_xfer_handle xfer; 1942 { 1943 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1944 usb_device_request_t *req = &xfer->request; 1945 usbd_device_handle dev = upipe->pipe.device; 1946 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1947 int addr = dev->address; 1948 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1949 uhci_intr_info_t *ii = upipe->iinfo; 1950 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1951 uhci_soft_qh_t *sqh; 1952 int len; 1953 u_int32_t ls; 1954 usbd_status err; 1955 int isread; 1956 int s; 1957 1958 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1959 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1960 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1961 UGETW(req->wIndex), UGETW(req->wLength), 1962 addr, endpt)); 1963 1964 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1965 isread = req->bmRequestType & UT_READ; 1966 len = UGETW(req->wLength); 1967 1968 setup = upipe->u.ctl.setup; 1969 stat = upipe->u.ctl.stat; 1970 sqh = upipe->u.ctl.sqh; 1971 1972 /* Set up data transaction */ 1973 if (len != 0) { 1974 upipe->nexttoggle = 1; 1975 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1976 &xfer->dmabuf, &data, &dataend); 1977 if (err) 1978 return (err); 1979 next = data; 1980 dataend->link.std = stat; 1981 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 1982 } else { 1983 next = stat; 1984 } 1985 upipe->u.ctl.length = len; 1986 1987 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1988 1989 setup->link.std = next; 1990 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 1991 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1992 UHCI_TD_ACTIVE); 1993 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1994 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 1995 1996 stat->link.std = 0; 1997 stat->td.td_link = htole32(UHCI_PTR_T); 1998 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1999 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2000 stat->td.td_token = 2001 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2002 UHCI_TD_IN (0, endpt, addr, 1)); 2003 stat->td.td_buffer = htole32(0); 2004 2005 #ifdef UHCI_DEBUG 2006 if (uhcidebug > 10) { 2007 DPRINTF(("uhci_device_request: before transfer\n")); 2008 uhci_dump_tds(setup); 2009 } 2010 #endif 2011 2012 /* Set up interrupt info. */ 2013 ii->xfer = xfer; 2014 ii->stdstart = setup; 2015 ii->stdend = stat; 2016 #if defined(__FreeBSD__) 2017 callout_handle_init(&ii->timeout_handle); 2018 #endif 2019 #ifdef DIAGNOSTIC 2020 if (!ii->isdone) { 2021 printf("uhci_device_request: not done, ii=%p\n", ii); 2022 } 2023 ii->isdone = 0; 2024 #endif 2025 2026 sqh->elink = setup; 2027 sqh->qh.qh_elink = htole32(setup->physaddr); 2028 sqh->intr_info = ii; 2029 2030 s = splusb(); 2031 uhci_add_ctrl(sc, sqh); 2032 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2033 #ifdef UHCI_DEBUG 2034 if (uhcidebug > 12) { 2035 uhci_soft_td_t *std; 2036 uhci_soft_qh_t *xqh; 2037 uhci_soft_qh_t *sxqh; 2038 int maxqh = 0; 2039 uhci_physaddr_t link; 2040 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2041 for (std = sc->sc_vframes[0].htd, link = 0; 2042 (link & UHCI_PTR_Q) == 0; 2043 std = std->link.std) { 2044 link = le32toh(std->td.td_link); 2045 uhci_dump_td(std); 2046 } 2047 sxqh = (uhci_soft_qh_t *)std; 2048 uhci_dump_qh(sxqh); 2049 for (xqh = sxqh; 2050 xqh != NULL; 2051 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2052 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2053 uhci_dump_qh(xqh); 2054 } 2055 DPRINTF(("Enqueued QH:\n")); 2056 uhci_dump_qh(sqh); 2057 uhci_dump_tds(sqh->elink); 2058 } 2059 #endif 2060 if (xfer->timeout && !sc->sc_bus.use_polling) { 2061 usb_timeout(uhci_timeout, ii, 2062 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2063 } 2064 splx(s); 2065 2066 return (USBD_NORMAL_COMPLETION); 2067 } 2068 2069 usbd_status 2070 uhci_device_isoc_transfer(xfer) 2071 usbd_xfer_handle xfer; 2072 { 2073 usbd_status err; 2074 2075 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2076 2077 /* Put it on our queue, */ 2078 err = usb_insert_transfer(xfer); 2079 2080 /* bail out on error, */ 2081 if (err && err != USBD_IN_PROGRESS) 2082 return (err); 2083 2084 /* XXX should check inuse here */ 2085 2086 /* insert into schedule, */ 2087 uhci_device_isoc_enter(xfer); 2088 2089 /* and put on interrupt list if the pipe wasn't running */ 2090 if (!err) 2091 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2092 2093 return (err); 2094 } 2095 2096 void 2097 uhci_device_isoc_enter(xfer) 2098 usbd_xfer_handle xfer; 2099 { 2100 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2101 usbd_device_handle dev = upipe->pipe.device; 2102 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2103 struct iso *iso = &upipe->u.iso; 2104 uhci_soft_td_t *std; 2105 u_int32_t buf, len, status; 2106 int s, i, next, nframes; 2107 2108 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2109 "nframes=%d\n", 2110 iso->inuse, iso->next, xfer, xfer->nframes)); 2111 2112 if (sc->sc_dying) 2113 return; 2114 2115 if (xfer->status == USBD_IN_PROGRESS) { 2116 /* This request has already been entered into the frame list */ 2117 /* XXX */ 2118 } 2119 2120 #ifdef DIAGNOSTIC 2121 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2122 printf("uhci_device_isoc_enter: overflow!\n"); 2123 #endif 2124 2125 next = iso->next; 2126 if (next == -1) { 2127 /* Not in use yet, schedule it a few frames ahead. */ 2128 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2129 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2130 } 2131 2132 xfer->status = USBD_IN_PROGRESS; 2133 xfer->hcprivint = next; 2134 2135 buf = DMAADDR(&xfer->dmabuf); 2136 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2137 UHCI_TD_ACTIVE | 2138 UHCI_TD_IOS); 2139 nframes = xfer->nframes; 2140 s = splusb(); 2141 for (i = 0; i < nframes; i++) { 2142 std = iso->stds[next]; 2143 if (++next >= UHCI_VFRAMELIST_COUNT) 2144 next = 0; 2145 len = xfer->frlengths[i]; 2146 std->td.td_buffer = htole32(buf); 2147 if (i == nframes - 1) 2148 status |= UHCI_TD_IOC; 2149 std->td.td_status = htole32(status); 2150 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2151 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2152 #ifdef UHCI_DEBUG 2153 if (uhcidebug > 5) { 2154 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2155 uhci_dump_td(std); 2156 } 2157 #endif 2158 buf += len; 2159 } 2160 iso->next = next; 2161 iso->inuse += xfer->nframes; 2162 2163 splx(s); 2164 } 2165 2166 usbd_status 2167 uhci_device_isoc_start(xfer) 2168 usbd_xfer_handle xfer; 2169 { 2170 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2171 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2172 uhci_intr_info_t *ii = upipe->iinfo; 2173 uhci_soft_td_t *end; 2174 int s, i; 2175 2176 if (sc->sc_dying) 2177 return (USBD_IOERROR); 2178 2179 #ifdef DIAGNOSTIC 2180 if (xfer->status != USBD_IN_PROGRESS) 2181 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2182 #endif 2183 2184 /* Find the last TD */ 2185 i = xfer->hcprivint + xfer->nframes; 2186 if (i >= UHCI_VFRAMELIST_COUNT) 2187 i -= UHCI_VFRAMELIST_COUNT; 2188 end = upipe->u.iso.stds[i]; 2189 2190 s = splusb(); 2191 2192 /* Set up interrupt info. */ 2193 ii->xfer = xfer; 2194 ii->stdstart = end; 2195 ii->stdend = end; 2196 #if defined(__FreeBSD__) 2197 callout_handle_init(&ii->timeout_handle); 2198 #endif 2199 #ifdef DIAGNOSTIC 2200 if (!ii->isdone) { 2201 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2202 } 2203 ii->isdone = 0; 2204 #endif 2205 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2206 2207 splx(s); 2208 2209 return (USBD_IN_PROGRESS); 2210 } 2211 2212 void 2213 uhci_device_isoc_abort(xfer) 2214 usbd_xfer_handle xfer; 2215 { 2216 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2217 uhci_intr_info_t *ii = upipe->iinfo; 2218 uhci_soft_td_t **stds = upipe->u.iso.stds; 2219 uhci_soft_td_t *std; 2220 int i, n, nframes; 2221 2222 /* Make interrupt routine ignore it, */ 2223 xfer->status = USBD_CANCELLED; 2224 2225 /* make hardware ignore it, */ 2226 nframes = xfer->nframes; 2227 n = xfer->hcprivint; 2228 for (i = 0; i < nframes; i++) { 2229 std = stds[n]; 2230 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2231 if (++n >= UHCI_VFRAMELIST_COUNT) 2232 n = 0; 2233 } 2234 2235 xfer->hcpriv = ii; 2236 2237 /* make sure hardware has completed, */ 2238 if (xfer->device->bus->intr_context) { 2239 /* We have no process context, so we can't use tsleep(). */ 2240 callout_reset(&xfer->abort_handle, hz / USB_FRAMES_PER_SECOND, 2241 uhci_abort_xfer_end, xfer); 2242 } else { 2243 usb_delay_ms(xfer->pipe->device->bus, 1); 2244 /* and call final part of interrupt handler. */ 2245 uhci_abort_xfer_end(xfer); 2246 } 2247 } 2248 2249 void 2250 uhci_device_isoc_close(pipe) 2251 usbd_pipe_handle pipe; 2252 { 2253 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2254 usbd_device_handle dev = upipe->pipe.device; 2255 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2256 uhci_soft_td_t *std, *vstd; 2257 struct iso *iso; 2258 int i; 2259 2260 /* 2261 * Make sure all TDs are marked as inactive. 2262 * Wait for completion. 2263 * Unschedule. 2264 * Deallocate. 2265 */ 2266 iso = &upipe->u.iso; 2267 2268 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2269 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2270 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2271 2272 uhci_lock_frames(sc); 2273 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2274 std = iso->stds[i]; 2275 for (vstd = sc->sc_vframes[i].htd; 2276 vstd != NULL && vstd->link.std != std; 2277 vstd = vstd->link.std) 2278 ; 2279 if (vstd == NULL) { 2280 /*panic*/ 2281 printf("uhci_device_isoc_close: %p not found\n", std); 2282 uhci_unlock_frames(sc); 2283 return; 2284 } 2285 vstd->link = std->link; 2286 vstd->td.td_link = std->td.td_link; 2287 uhci_free_std(sc, std); 2288 } 2289 uhci_unlock_frames(sc); 2290 2291 free(iso->stds, M_USBHC); 2292 } 2293 2294 usbd_status 2295 uhci_setup_isoc(pipe) 2296 usbd_pipe_handle pipe; 2297 { 2298 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2299 usbd_device_handle dev = upipe->pipe.device; 2300 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2301 int addr = upipe->pipe.device->address; 2302 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2303 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2304 uhci_soft_td_t *std, *vstd; 2305 u_int32_t token; 2306 struct iso *iso; 2307 int i; 2308 2309 iso = &upipe->u.iso; 2310 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2311 M_USBHC, M_WAITOK); 2312 2313 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2314 UHCI_TD_OUT(0, endpt, addr, 0); 2315 2316 /* Allocate the TDs and mark as inactive; */ 2317 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2318 std = uhci_alloc_std(sc); 2319 if (std == 0) 2320 goto bad; 2321 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2322 std->td.td_token = htole32(token); 2323 iso->stds[i] = std; 2324 } 2325 2326 /* Insert TDs into schedule. */ 2327 uhci_lock_frames(sc); 2328 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2329 std = iso->stds[i]; 2330 vstd = sc->sc_vframes[i].htd; 2331 std->link = vstd->link; 2332 std->td.td_link = vstd->td.td_link; 2333 vstd->link.std = std; 2334 vstd->td.td_link = htole32(std->physaddr); 2335 } 2336 uhci_unlock_frames(sc); 2337 2338 iso->next = -1; 2339 iso->inuse = 0; 2340 2341 return (USBD_NORMAL_COMPLETION); 2342 2343 bad: 2344 while (--i >= 0) 2345 uhci_free_std(sc, iso->stds[i]); 2346 free(iso->stds, M_USBHC); 2347 return (USBD_NOMEM); 2348 } 2349 2350 void 2351 uhci_device_isoc_done(xfer) 2352 usbd_xfer_handle xfer; 2353 { 2354 uhci_intr_info_t *ii = xfer->hcpriv; 2355 2356 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2357 2358 /* Turn off the interrupt since it is active even if the TD is not. */ 2359 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2360 2361 LIST_REMOVE(ii, list); /* remove from active list */ 2362 } 2363 2364 void 2365 uhci_device_intr_done(xfer) 2366 usbd_xfer_handle xfer; 2367 { 2368 uhci_intr_info_t *ii = xfer->hcpriv; 2369 uhci_softc_t *sc = ii->sc; 2370 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2371 uhci_soft_qh_t *sqh; 2372 int i, npoll; 2373 2374 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2375 2376 npoll = upipe->u.intr.npoll; 2377 for(i = 0; i < npoll; i++) { 2378 sqh = upipe->u.intr.qhs[i]; 2379 sqh->elink = 0; 2380 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2381 } 2382 uhci_free_std_chain(sc, ii->stdstart, 0); 2383 2384 /* XXX Wasteful. */ 2385 if (xfer->pipe->repeat) { 2386 uhci_soft_td_t *data, *dataend; 2387 2388 /* This alloc cannot fail since we freed the chain above. */ 2389 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2390 &xfer->dmabuf, &data, &dataend); 2391 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2392 2393 #ifdef UHCI_DEBUG 2394 if (uhcidebug > 10) { 2395 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2396 uhci_dump_tds(data); 2397 uhci_dump_qh(upipe->u.intr.qhs[0]); 2398 } 2399 #endif 2400 2401 ii->stdstart = data; 2402 ii->stdend = dataend; 2403 #if defined(__FreeBSD__) 2404 callout_handle_init(&ii->timeout_handle); 2405 #endif 2406 #ifdef DIAGNOSTIC 2407 if (!ii->isdone) { 2408 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2409 } 2410 ii->isdone = 0; 2411 #endif 2412 for (i = 0; i < npoll; i++) { 2413 sqh = upipe->u.intr.qhs[i]; 2414 sqh->elink = data; 2415 sqh->qh.qh_elink = htole32(data->physaddr); 2416 } 2417 } else { 2418 ii->stdstart = 0; /* mark as inactive */ 2419 } 2420 } 2421 2422 /* Deallocate request data structures */ 2423 void 2424 uhci_device_ctrl_done(xfer) 2425 usbd_xfer_handle xfer; 2426 { 2427 uhci_intr_info_t *ii = xfer->hcpriv; 2428 uhci_softc_t *sc = ii->sc; 2429 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2430 2431 #ifdef DIAGNOSTIC 2432 if (!(xfer->rqflags & URQ_REQUEST)) 2433 panic("uhci_ctrl_done: not a request\n"); 2434 #endif 2435 2436 LIST_REMOVE(ii, list); /* remove from active list */ 2437 2438 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2439 2440 if (upipe->u.ctl.length != 0) 2441 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2442 2443 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2444 } 2445 2446 /* Deallocate request data structures */ 2447 void 2448 uhci_device_bulk_done(xfer) 2449 usbd_xfer_handle xfer; 2450 { 2451 uhci_intr_info_t *ii = xfer->hcpriv; 2452 uhci_softc_t *sc = ii->sc; 2453 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2454 2455 LIST_REMOVE(ii, list); /* remove from active list */ 2456 2457 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2458 2459 uhci_free_std_chain(sc, ii->stdstart, 0); 2460 2461 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2462 } 2463 2464 /* Add interrupt QH, called with vflock. */ 2465 void 2466 uhci_add_intr(sc, n, sqh) 2467 uhci_softc_t *sc; 2468 int n; 2469 uhci_soft_qh_t *sqh; 2470 { 2471 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2472 uhci_soft_qh_t *eqh; 2473 2474 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2475 eqh = vf->eqh; 2476 sqh->hlink = eqh->hlink; 2477 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2478 eqh->hlink = sqh; 2479 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2480 vf->eqh = sqh; 2481 vf->bandwidth++; 2482 } 2483 2484 /* Remove interrupt QH, called with vflock. */ 2485 void 2486 uhci_remove_intr(sc, n, sqh) 2487 uhci_softc_t *sc; 2488 int n; 2489 uhci_soft_qh_t *sqh; 2490 { 2491 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2492 uhci_soft_qh_t *pqh; 2493 2494 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2495 2496 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2497 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2498 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2499 DPRINTF(("uhci_remove_intr: QH not found\n")); 2500 return; 2501 } 2502 #else 2503 ; 2504 #endif 2505 pqh->hlink = sqh->hlink; 2506 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2507 if (vf->eqh == sqh) 2508 vf->eqh = pqh; 2509 vf->bandwidth--; 2510 } 2511 2512 usbd_status 2513 uhci_device_setintr(sc, upipe, ival) 2514 uhci_softc_t *sc; 2515 struct uhci_pipe *upipe; 2516 int ival; 2517 { 2518 uhci_soft_qh_t *sqh; 2519 int i, npoll, s; 2520 u_int bestbw, bw, bestoffs, offs; 2521 2522 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2523 if (ival == 0) { 2524 printf("uhci_setintr: 0 interval\n"); 2525 return (USBD_INVAL); 2526 } 2527 2528 if (ival > UHCI_VFRAMELIST_COUNT) 2529 ival = UHCI_VFRAMELIST_COUNT; 2530 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2531 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2532 2533 upipe->u.intr.npoll = npoll; 2534 upipe->u.intr.qhs = 2535 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2536 2537 /* 2538 * Figure out which offset in the schedule that has most 2539 * bandwidth left over. 2540 */ 2541 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2542 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2543 for (bw = i = 0; i < npoll; i++) 2544 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2545 if (bw < bestbw) { 2546 bestbw = bw; 2547 bestoffs = offs; 2548 } 2549 } 2550 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2551 2552 upipe->iinfo->stdstart = 0; 2553 for(i = 0; i < npoll; i++) { 2554 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2555 sqh->elink = 0; 2556 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2557 sqh->pos = MOD(i * ival + bestoffs); 2558 sqh->intr_info = upipe->iinfo; 2559 } 2560 #undef MOD 2561 2562 s = splusb(); 2563 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2564 splx(s); 2565 2566 uhci_lock_frames(sc); 2567 /* Enter QHs into the controller data structures. */ 2568 for(i = 0; i < npoll; i++) 2569 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2570 upipe->u.intr.qhs[i]); 2571 uhci_unlock_frames(sc); 2572 2573 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2574 return (USBD_NORMAL_COMPLETION); 2575 } 2576 2577 /* Open a new pipe. */ 2578 usbd_status 2579 uhci_open(pipe) 2580 usbd_pipe_handle pipe; 2581 { 2582 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2583 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2584 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2585 usbd_status err; 2586 int ival; 2587 2588 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2589 pipe, pipe->device->address, 2590 ed->bEndpointAddress, sc->sc_addr)); 2591 if (pipe->device->address == sc->sc_addr) { 2592 switch (ed->bEndpointAddress) { 2593 case USB_CONTROL_ENDPOINT: 2594 pipe->methods = &uhci_root_ctrl_methods; 2595 break; 2596 case UE_DIR_IN | UHCI_INTR_ENDPT: 2597 pipe->methods = &uhci_root_intr_methods; 2598 break; 2599 default: 2600 return (USBD_INVAL); 2601 } 2602 } else { 2603 upipe->iinfo = uhci_alloc_intr_info(sc); 2604 if (upipe->iinfo == 0) 2605 return (USBD_NOMEM); 2606 switch (ed->bmAttributes & UE_XFERTYPE) { 2607 case UE_CONTROL: 2608 pipe->methods = &uhci_device_ctrl_methods; 2609 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2610 if (upipe->u.ctl.sqh == NULL) 2611 goto bad; 2612 upipe->u.ctl.setup = uhci_alloc_std(sc); 2613 if (upipe->u.ctl.setup == NULL) { 2614 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2615 goto bad; 2616 } 2617 upipe->u.ctl.stat = uhci_alloc_std(sc); 2618 if (upipe->u.ctl.stat == NULL) { 2619 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2620 uhci_free_std(sc, upipe->u.ctl.setup); 2621 goto bad; 2622 } 2623 err = usb_allocmem(&sc->sc_bus, 2624 sizeof(usb_device_request_t), 2625 0, &upipe->u.ctl.reqdma); 2626 if (err) { 2627 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2628 uhci_free_std(sc, upipe->u.ctl.setup); 2629 uhci_free_std(sc, upipe->u.ctl.stat); 2630 goto bad; 2631 } 2632 break; 2633 case UE_INTERRUPT: 2634 pipe->methods = &uhci_device_intr_methods; 2635 ival = pipe->interval; 2636 if (ival == USBD_DEFAULT_INTERVAL) 2637 ival = ed->bInterval; 2638 return (uhci_device_setintr(sc, upipe, ival)); 2639 case UE_ISOCHRONOUS: 2640 pipe->methods = &uhci_device_isoc_methods; 2641 return (uhci_setup_isoc(pipe)); 2642 case UE_BULK: 2643 pipe->methods = &uhci_device_bulk_methods; 2644 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2645 if (upipe->u.bulk.sqh == NULL) 2646 goto bad; 2647 break; 2648 } 2649 } 2650 return (USBD_NORMAL_COMPLETION); 2651 2652 bad: 2653 uhci_free_intr_info(upipe->iinfo); 2654 return (USBD_NOMEM); 2655 } 2656 2657 /* 2658 * Data structures and routines to emulate the root hub. 2659 */ 2660 usb_device_descriptor_t uhci_devd = { 2661 USB_DEVICE_DESCRIPTOR_SIZE, 2662 UDESC_DEVICE, /* type */ 2663 {0x00, 0x01}, /* USB version */ 2664 UDCLASS_HUB, /* class */ 2665 UDSUBCLASS_HUB, /* subclass */ 2666 0, /* protocol */ 2667 64, /* max packet */ 2668 {0},{0},{0x00,0x01}, /* device id */ 2669 1,2,0, /* string indicies */ 2670 1 /* # of configurations */ 2671 }; 2672 2673 usb_config_descriptor_t uhci_confd = { 2674 USB_CONFIG_DESCRIPTOR_SIZE, 2675 UDESC_CONFIG, 2676 {USB_CONFIG_DESCRIPTOR_SIZE + 2677 USB_INTERFACE_DESCRIPTOR_SIZE + 2678 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2679 1, 2680 1, 2681 0, 2682 UC_SELF_POWERED, 2683 0 /* max power */ 2684 }; 2685 2686 usb_interface_descriptor_t uhci_ifcd = { 2687 USB_INTERFACE_DESCRIPTOR_SIZE, 2688 UDESC_INTERFACE, 2689 0, 2690 0, 2691 1, 2692 UICLASS_HUB, 2693 UISUBCLASS_HUB, 2694 0, 2695 0 2696 }; 2697 2698 usb_endpoint_descriptor_t uhci_endpd = { 2699 USB_ENDPOINT_DESCRIPTOR_SIZE, 2700 UDESC_ENDPOINT, 2701 UE_DIR_IN | UHCI_INTR_ENDPT, 2702 UE_INTERRUPT, 2703 {8}, 2704 255 2705 }; 2706 2707 usb_hub_descriptor_t uhci_hubd_piix = { 2708 USB_HUB_DESCRIPTOR_SIZE, 2709 UDESC_HUB, 2710 2, 2711 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2712 50, /* power on to power good */ 2713 0, 2714 { 0x00 }, /* both ports are removable */ 2715 }; 2716 2717 int 2718 uhci_str(p, l, s) 2719 usb_string_descriptor_t *p; 2720 int l; 2721 char *s; 2722 { 2723 int i; 2724 2725 if (l == 0) 2726 return (0); 2727 p->bLength = 2 * strlen(s) + 2; 2728 if (l == 1) 2729 return (1); 2730 p->bDescriptorType = UDESC_STRING; 2731 l -= 2; 2732 for (i = 0; s[i] && l > 1; i++, l -= 2) 2733 USETW2(p->bString[i], 0, s[i]); 2734 return (2*i+2); 2735 } 2736 2737 /* 2738 * Simulate a hardware hub by handling all the necessary requests. 2739 */ 2740 usbd_status 2741 uhci_root_ctrl_transfer(xfer) 2742 usbd_xfer_handle xfer; 2743 { 2744 usbd_status err; 2745 2746 /* Insert last in queue. */ 2747 err = usb_insert_transfer(xfer); 2748 if (err) 2749 return (err); 2750 2751 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2752 * start first 2753 */ 2754 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2755 } 2756 2757 usbd_status 2758 uhci_root_ctrl_start(xfer) 2759 usbd_xfer_handle xfer; 2760 { 2761 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2762 usb_device_request_t *req; 2763 void *buf = NULL; 2764 int port, x; 2765 int s, len, value, index, status, change, l, totlen = 0; 2766 usb_port_status_t ps; 2767 usbd_status err; 2768 2769 if (sc->sc_dying) 2770 return (USBD_IOERROR); 2771 2772 #ifdef DIAGNOSTIC 2773 if (!(xfer->rqflags & URQ_REQUEST)) 2774 panic("uhci_root_ctrl_transfer: not a request\n"); 2775 #endif 2776 req = &xfer->request; 2777 2778 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2779 req->bmRequestType, req->bRequest)); 2780 2781 len = UGETW(req->wLength); 2782 value = UGETW(req->wValue); 2783 index = UGETW(req->wIndex); 2784 2785 if (len != 0) 2786 buf = KERNADDR(&xfer->dmabuf); 2787 2788 #define C(x,y) ((x) | ((y) << 8)) 2789 switch(C(req->bRequest, req->bmRequestType)) { 2790 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2791 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2792 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2793 /* 2794 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2795 * for the integrated root hub. 2796 */ 2797 break; 2798 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2799 if (len > 0) { 2800 *(u_int8_t *)buf = sc->sc_conf; 2801 totlen = 1; 2802 } 2803 break; 2804 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2805 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2806 switch(value >> 8) { 2807 case UDESC_DEVICE: 2808 if ((value & 0xff) != 0) { 2809 err = USBD_IOERROR; 2810 goto ret; 2811 } 2812 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2813 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2814 memcpy(buf, &uhci_devd, l); 2815 break; 2816 case UDESC_CONFIG: 2817 if ((value & 0xff) != 0) { 2818 err = USBD_IOERROR; 2819 goto ret; 2820 } 2821 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2822 memcpy(buf, &uhci_confd, l); 2823 buf = (char *)buf + l; 2824 len -= l; 2825 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2826 totlen += l; 2827 memcpy(buf, &uhci_ifcd, l); 2828 buf = (char *)buf + l; 2829 len -= l; 2830 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2831 totlen += l; 2832 memcpy(buf, &uhci_endpd, l); 2833 break; 2834 case UDESC_STRING: 2835 if (len == 0) 2836 break; 2837 *(u_int8_t *)buf = 0; 2838 totlen = 1; 2839 switch (value & 0xff) { 2840 case 1: /* Vendor */ 2841 totlen = uhci_str(buf, len, sc->sc_vendor); 2842 break; 2843 case 2: /* Product */ 2844 totlen = uhci_str(buf, len, "UHCI root hub"); 2845 break; 2846 } 2847 break; 2848 default: 2849 err = USBD_IOERROR; 2850 goto ret; 2851 } 2852 break; 2853 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2854 if (len > 0) { 2855 *(u_int8_t *)buf = 0; 2856 totlen = 1; 2857 } 2858 break; 2859 case C(UR_GET_STATUS, UT_READ_DEVICE): 2860 if (len > 1) { 2861 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2862 totlen = 2; 2863 } 2864 break; 2865 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2866 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2867 if (len > 1) { 2868 USETW(((usb_status_t *)buf)->wStatus, 0); 2869 totlen = 2; 2870 } 2871 break; 2872 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2873 if (value >= USB_MAX_DEVICES) { 2874 err = USBD_IOERROR; 2875 goto ret; 2876 } 2877 sc->sc_addr = value; 2878 break; 2879 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2880 if (value != 0 && value != 1) { 2881 err = USBD_IOERROR; 2882 goto ret; 2883 } 2884 sc->sc_conf = value; 2885 break; 2886 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2887 break; 2888 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2889 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2890 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2891 err = USBD_IOERROR; 2892 goto ret; 2893 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2894 break; 2895 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2896 break; 2897 /* Hub requests */ 2898 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2899 break; 2900 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2901 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2902 "port=%d feature=%d\n", 2903 index, value)); 2904 if (index == 1) 2905 port = UHCI_PORTSC1; 2906 else if (index == 2) 2907 port = UHCI_PORTSC2; 2908 else { 2909 err = USBD_IOERROR; 2910 goto ret; 2911 } 2912 switch(value) { 2913 case UHF_PORT_ENABLE: 2914 x = UREAD2(sc, port); 2915 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2916 break; 2917 case UHF_PORT_SUSPEND: 2918 x = UREAD2(sc, port); 2919 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2920 break; 2921 case UHF_PORT_RESET: 2922 x = UREAD2(sc, port); 2923 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2924 break; 2925 case UHF_C_PORT_CONNECTION: 2926 x = UREAD2(sc, port); 2927 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2928 break; 2929 case UHF_C_PORT_ENABLE: 2930 x = UREAD2(sc, port); 2931 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2932 break; 2933 case UHF_C_PORT_OVER_CURRENT: 2934 x = UREAD2(sc, port); 2935 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2936 break; 2937 case UHF_C_PORT_RESET: 2938 sc->sc_isreset = 0; 2939 err = USBD_NORMAL_COMPLETION; 2940 goto ret; 2941 case UHF_PORT_CONNECTION: 2942 case UHF_PORT_OVER_CURRENT: 2943 case UHF_PORT_POWER: 2944 case UHF_PORT_LOW_SPEED: 2945 case UHF_C_PORT_SUSPEND: 2946 default: 2947 err = USBD_IOERROR; 2948 goto ret; 2949 } 2950 break; 2951 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2952 if (index == 1) 2953 port = UHCI_PORTSC1; 2954 else if (index == 2) 2955 port = UHCI_PORTSC2; 2956 else { 2957 err = USBD_IOERROR; 2958 goto ret; 2959 } 2960 if (len > 0) { 2961 *(u_int8_t *)buf = 2962 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2963 UHCI_PORTSC_LS_SHIFT; 2964 totlen = 1; 2965 } 2966 break; 2967 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2968 if (value != 0) { 2969 err = USBD_IOERROR; 2970 goto ret; 2971 } 2972 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2973 totlen = l; 2974 memcpy(buf, &uhci_hubd_piix, l); 2975 break; 2976 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2977 if (len != 4) { 2978 err = USBD_IOERROR; 2979 goto ret; 2980 } 2981 memset(buf, 0, len); 2982 totlen = len; 2983 break; 2984 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2985 if (index == 1) 2986 port = UHCI_PORTSC1; 2987 else if (index == 2) 2988 port = UHCI_PORTSC2; 2989 else { 2990 err = USBD_IOERROR; 2991 goto ret; 2992 } 2993 if (len != 4) { 2994 err = USBD_IOERROR; 2995 goto ret; 2996 } 2997 x = UREAD2(sc, port); 2998 status = change = 0; 2999 if (x & UHCI_PORTSC_CCS ) 3000 status |= UPS_CURRENT_CONNECT_STATUS; 3001 if (x & UHCI_PORTSC_CSC ) 3002 change |= UPS_C_CONNECT_STATUS; 3003 if (x & UHCI_PORTSC_PE ) 3004 status |= UPS_PORT_ENABLED; 3005 if (x & UHCI_PORTSC_POEDC) 3006 change |= UPS_C_PORT_ENABLED; 3007 if (x & UHCI_PORTSC_OCI ) 3008 status |= UPS_OVERCURRENT_INDICATOR; 3009 if (x & UHCI_PORTSC_OCIC ) 3010 change |= UPS_C_OVERCURRENT_INDICATOR; 3011 if (x & UHCI_PORTSC_SUSP ) 3012 status |= UPS_SUSPEND; 3013 if (x & UHCI_PORTSC_LSDA ) 3014 status |= UPS_LOW_SPEED; 3015 status |= UPS_PORT_POWER; 3016 if (sc->sc_isreset) 3017 change |= UPS_C_PORT_RESET; 3018 USETW(ps.wPortStatus, status); 3019 USETW(ps.wPortChange, change); 3020 l = min(len, sizeof ps); 3021 memcpy(buf, &ps, l); 3022 totlen = l; 3023 break; 3024 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3025 err = USBD_IOERROR; 3026 goto ret; 3027 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3028 break; 3029 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3030 if (index == 1) 3031 port = UHCI_PORTSC1; 3032 else if (index == 2) 3033 port = UHCI_PORTSC2; 3034 else { 3035 err = USBD_IOERROR; 3036 goto ret; 3037 } 3038 switch(value) { 3039 case UHF_PORT_ENABLE: 3040 x = UREAD2(sc, port); 3041 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3042 break; 3043 case UHF_PORT_SUSPEND: 3044 x = UREAD2(sc, port); 3045 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3046 break; 3047 case UHF_PORT_RESET: 3048 x = UREAD2(sc, port); 3049 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3050 usb_delay_ms(&sc->sc_bus, 10); 3051 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3052 delay(100); 3053 x = UREAD2(sc, port); 3054 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3055 delay(100); 3056 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3057 index, UREAD2(sc, port))); 3058 sc->sc_isreset = 1; 3059 break; 3060 case UHF_C_PORT_CONNECTION: 3061 case UHF_C_PORT_ENABLE: 3062 case UHF_C_PORT_OVER_CURRENT: 3063 case UHF_PORT_CONNECTION: 3064 case UHF_PORT_OVER_CURRENT: 3065 case UHF_PORT_POWER: 3066 case UHF_PORT_LOW_SPEED: 3067 case UHF_C_PORT_SUSPEND: 3068 case UHF_C_PORT_RESET: 3069 default: 3070 err = USBD_IOERROR; 3071 goto ret; 3072 } 3073 break; 3074 default: 3075 err = USBD_IOERROR; 3076 goto ret; 3077 } 3078 xfer->actlen = totlen; 3079 err = USBD_NORMAL_COMPLETION; 3080 ret: 3081 xfer->status = err; 3082 xfer->hcpriv = 0; 3083 s = splusb(); 3084 usb_transfer_complete(xfer); 3085 splx(s); 3086 return (USBD_IN_PROGRESS); 3087 } 3088 3089 /* Abort a root control request. */ 3090 void 3091 uhci_root_ctrl_abort(xfer) 3092 usbd_xfer_handle xfer; 3093 { 3094 /* Nothing to do, all transfers are synchronous. */ 3095 } 3096 3097 /* Close the root pipe. */ 3098 void 3099 uhci_root_ctrl_close(pipe) 3100 usbd_pipe_handle pipe; 3101 { 3102 DPRINTF(("uhci_root_ctrl_close\n")); 3103 } 3104 3105 /* Abort a root interrupt request. */ 3106 void 3107 uhci_root_intr_abort(xfer) 3108 usbd_xfer_handle xfer; 3109 { 3110 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3111 3112 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3113 sc->sc_has_timo = NULL; 3114 3115 if (xfer->pipe->intrxfer == xfer) { 3116 DPRINTF(("uhci_root_intr_abort: remove\n")); 3117 xfer->pipe->intrxfer = 0; 3118 } 3119 xfer->status = USBD_CANCELLED; 3120 usb_transfer_complete(xfer); 3121 } 3122 3123 usbd_status 3124 uhci_root_intr_transfer(xfer) 3125 usbd_xfer_handle xfer; 3126 { 3127 usbd_status err; 3128 3129 /* Insert last in queue. */ 3130 err = usb_insert_transfer(xfer); 3131 if (err) 3132 return (err); 3133 3134 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3135 * start first 3136 */ 3137 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3138 } 3139 3140 /* Start a transfer on the root interrupt pipe */ 3141 usbd_status 3142 uhci_root_intr_start(xfer) 3143 usbd_xfer_handle xfer; 3144 { 3145 usbd_pipe_handle pipe = xfer->pipe; 3146 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3147 3148 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3149 xfer, xfer->length, xfer->flags)); 3150 3151 if (sc->sc_dying) 3152 return (USBD_IOERROR); 3153 3154 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3155 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3156 sc->sc_has_timo = xfer; 3157 return (USBD_IN_PROGRESS); 3158 } 3159 3160 /* Close the root interrupt pipe. */ 3161 void 3162 uhci_root_intr_close(pipe) 3163 usbd_pipe_handle pipe; 3164 { 3165 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3166 3167 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3168 sc->sc_has_timo = NULL; 3169 DPRINTF(("uhci_root_intr_close\n")); 3170 } 3171
Indexes created Tue Sep 30 17:09:57 GMT 2025