uhci.c revision 1.90
1 /* $NetBSD: uhci.c,v 1.90 2000/03/23 18:59:10 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(__NetBSD__) 857 callout_init(&ii->timeout_handle); 858 #endif 859 #if defined(__FreeBSD__) 860 callout_handle_init(&ii->timeout_handle); 861 #endif 862 863 return ii; 864 } 865 866 void 867 uhci_free_intr_info(ii) 868 uhci_intr_info_t *ii; 869 { 870 #if defined(__NetBSD__) && defined(DIAGNOSTIC) 871 if (callout_pending(&ii->timeout_handle)) 872 panic("uhci_free_intr_info: pending callout"); 873 #endif 874 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 875 } 876 877 /* Add control QH, called at splusb(). */ 878 void 879 uhci_add_ctrl(sc, sqh) 880 uhci_softc_t *sc; 881 uhci_soft_qh_t *sqh; 882 { 883 uhci_soft_qh_t *eqh; 884 885 SPLUSBCHECK; 886 887 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 888 eqh = sc->sc_ctl_end; 889 sqh->hlink = eqh->hlink; 890 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 891 eqh->hlink = sqh; 892 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 893 sc->sc_ctl_end = sqh; 894 } 895 896 /* Remove control QH, called at splusb(). */ 897 void 898 uhci_remove_ctrl(sc, sqh) 899 uhci_softc_t *sc; 900 uhci_soft_qh_t *sqh; 901 { 902 uhci_soft_qh_t *pqh; 903 904 SPLUSBCHECK; 905 906 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 907 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 908 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 909 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 910 printf("uhci_remove_ctrl: QH not found\n"); 911 return; 912 } 913 #else 914 ; 915 #endif 916 pqh->hlink = sqh->hlink; 917 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 918 if (sc->sc_ctl_end == sqh) 919 sc->sc_ctl_end = pqh; 920 } 921 922 /* Add bulk QH, called at splusb(). */ 923 void 924 uhci_add_bulk(sc, sqh) 925 uhci_softc_t *sc; 926 uhci_soft_qh_t *sqh; 927 { 928 uhci_soft_qh_t *eqh; 929 930 SPLUSBCHECK; 931 932 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 933 eqh = sc->sc_bulk_end; 934 sqh->hlink = eqh->hlink; 935 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 936 eqh->hlink = sqh; 937 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 938 sc->sc_bulk_end = sqh; 939 } 940 941 /* Remove bulk QH, called at splusb(). */ 942 void 943 uhci_remove_bulk(sc, sqh) 944 uhci_softc_t *sc; 945 uhci_soft_qh_t *sqh; 946 { 947 uhci_soft_qh_t *pqh; 948 949 SPLUSBCHECK; 950 951 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 952 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 953 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 954 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 955 printf("uhci_remove_bulk: QH not found\n"); 956 return; 957 } 958 #else 959 ; 960 #endif 961 pqh->hlink = sqh->hlink; 962 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 963 if (sc->sc_bulk_end == sqh) 964 sc->sc_bulk_end = pqh; 965 } 966 967 int 968 uhci_intr(arg) 969 void *arg; 970 { 971 uhci_softc_t *sc = arg; 972 int status; 973 int ack; 974 975 #ifdef UHCI_DEBUG 976 if (uhcidebug > 15) { 977 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 978 uhci_dumpregs(sc); 979 } 980 #endif 981 982 status = UREAD2(sc, UHCI_STS); 983 if (status == 0) /* The interrupt was not for us. */ 984 return (0); 985 986 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 987 if (sc->sc_suspend != PWR_RESUME) 988 printf("uhci_intr: suspended sts=0x%x\n", status); 989 #endif 990 991 ack = 0; 992 if (status & UHCI_STS_USBINT) 993 ack |= UHCI_STS_USBINT; 994 if (status & UHCI_STS_USBEI) 995 ack |= UHCI_STS_USBEI; 996 if (status & UHCI_STS_RD) { 997 ack |= UHCI_STS_RD; 998 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 999 } 1000 if (status & UHCI_STS_HSE) { 1001 ack |= UHCI_STS_HSE; 1002 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1003 } 1004 if (status & UHCI_STS_HCPE) { 1005 ack |= UHCI_STS_HCPE; 1006 printf("%s: host controller process error\n", 1007 USBDEVNAME(sc->sc_bus.bdev)); 1008 } 1009 if (status & UHCI_STS_HCH) { 1010 /* no acknowledge needed */ 1011 printf("%s: host controller halted\n", 1012 USBDEVNAME(sc->sc_bus.bdev)); 1013 sc->sc_dying = 1; 1014 } 1015 1016 if (ack) /* acknowledge the ints */ 1017 UWRITE2(sc, UHCI_STS, ack); 1018 else /* nothing to acknowledge */ 1019 return (0); 1020 1021 sc->sc_bus.no_intrs++; 1022 usb_schedsoftintr(&sc->sc_bus); 1023 1024 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1025 1026 return (1); 1027 } 1028 1029 void 1030 uhci_softintr(bus) 1031 struct usbd_bus *bus; 1032 { 1033 uhci_softc_t *sc = (uhci_softc_t *)bus; 1034 uhci_intr_info_t *ii; 1035 1036 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1037 1038 sc->sc_bus.intr_context++; 1039 1040 /* 1041 * Interrupts on UHCI really suck. When the host controller 1042 * interrupts because a transfer is completed there is no 1043 * way of knowing which transfer it was. You can scan down 1044 * the TDs and QHs of the previous frame to limit the search, 1045 * but that assumes that the interrupt was not delayed by more 1046 * than 1 ms, which may not always be true (e.g. after debug 1047 * output on a slow console). 1048 * We scan all interrupt descriptors to see if any have 1049 * completed. 1050 */ 1051 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1052 uhci_check_intr(sc, ii); 1053 1054 sc->sc_bus.intr_context--; 1055 } 1056 1057 /* Check for an interrupt. */ 1058 void 1059 uhci_check_intr(sc, ii) 1060 uhci_softc_t *sc; 1061 uhci_intr_info_t *ii; 1062 { 1063 uhci_soft_td_t *std, *lstd; 1064 u_int32_t status; 1065 1066 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1067 #ifdef DIAGNOSTIC 1068 if (ii == NULL) { 1069 printf("uhci_check_intr: no ii? %p\n", ii); 1070 return; 1071 } 1072 #endif 1073 if (ii->stdstart == NULL) 1074 return; 1075 lstd = ii->stdend; 1076 #ifdef DIAGNOSTIC 1077 if (lstd == NULL) { 1078 printf("uhci_check_intr: std==0\n"); 1079 return; 1080 } 1081 #endif 1082 /* 1083 * If the last TD is still active we need to check whether there 1084 * is a an error somewhere in the middle, or whether there was a 1085 * short packet (SPD and not ACTIVE). 1086 */ 1087 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1088 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1089 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1090 status = le32toh(std->td.td_status); 1091 /* If there's an active TD the xfer isn't done. */ 1092 if (status & UHCI_TD_ACTIVE) 1093 break; 1094 /* Any kind of error makes the xfer done. */ 1095 if (status & UHCI_TD_STALLED) 1096 goto done; 1097 /* We want short packets, and it is short: it's done */ 1098 if ((status & UHCI_TD_SPD) && 1099 UHCI_TD_GET_ACTLEN(status) < 1100 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1101 goto done; 1102 } 1103 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1104 ii, ii->stdstart)); 1105 return; 1106 } 1107 done: 1108 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1109 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1110 uhci_idone(ii); 1111 } 1112 1113 /* Called at splusb() */ 1114 void 1115 uhci_idone(ii) 1116 uhci_intr_info_t *ii; 1117 { 1118 usbd_xfer_handle xfer = ii->xfer; 1119 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1120 uhci_soft_td_t *std; 1121 u_int32_t status = 0, nstatus; 1122 int actlen; 1123 1124 #ifdef DIAGNOSTIC 1125 { 1126 int s = splhigh(); 1127 if (ii->isdone) { 1128 splx(s); 1129 printf("uhci_idone: ii=%p is done!\n", ii); 1130 return; 1131 } 1132 ii->isdone = 1; 1133 splx(s); 1134 } 1135 #endif 1136 1137 if (xfer->status == USBD_CANCELLED || 1138 xfer->status == USBD_TIMEOUT) { 1139 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1140 return; 1141 } 1142 1143 if (xfer->nframes != 0) { 1144 /* Isoc transfer, do things differently. */ 1145 uhci_soft_td_t **stds = upipe->u.iso.stds; 1146 int i, n, nframes; 1147 1148 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1149 1150 nframes = xfer->nframes; 1151 actlen = 0; 1152 n = xfer->hcprivint; 1153 for (i = 0; i < nframes; i++) { 1154 std = stds[n]; 1155 #ifdef UHCI_DEBUG 1156 if (uhcidebug > 5) { 1157 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1158 uhci_dump_td(std); 1159 } 1160 #endif 1161 if (++n >= UHCI_VFRAMELIST_COUNT) 1162 n = 0; 1163 status = le32toh(std->td.td_status); 1164 actlen += UHCI_TD_GET_ACTLEN(status); 1165 } 1166 upipe->u.iso.inuse -= nframes; 1167 xfer->actlen = actlen; 1168 xfer->status = USBD_NORMAL_COMPLETION; 1169 xfer->hcpriv = ii; 1170 usb_transfer_complete(xfer); 1171 return; 1172 } 1173 1174 #ifdef UHCI_DEBUG 1175 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1176 ii, xfer, upipe)); 1177 if (uhcidebug > 10) 1178 uhci_dump_tds(ii->stdstart); 1179 #endif 1180 1181 /* The transfer is done, compute actual length and status. */ 1182 actlen = 0; 1183 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1184 nstatus = le32toh(std->td.td_status); 1185 if (nstatus & UHCI_TD_ACTIVE) 1186 break; 1187 1188 status = nstatus; 1189 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1190 UHCI_TD_PID_SETUP) 1191 actlen += UHCI_TD_GET_ACTLEN(status); 1192 } 1193 /* If there are left over TDs we need to update the toggle. */ 1194 if (std != NULL) 1195 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1196 1197 status &= UHCI_TD_ERROR; 1198 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1199 actlen, status)); 1200 xfer->actlen = actlen; 1201 if (status != 0) { 1202 DPRINTFN((status == UHCI_TD_STALLED)*10, 1203 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1204 "status 0x%b\n", 1205 xfer->pipe->device->address, 1206 xfer->pipe->endpoint->edesc->bEndpointAddress, 1207 (int)status, 1208 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1209 "STALLED\30ACTIVE")); 1210 if (status == UHCI_TD_STALLED) 1211 xfer->status = USBD_STALLED; 1212 else 1213 xfer->status = USBD_IOERROR; /* more info XXX */ 1214 } else { 1215 xfer->status = USBD_NORMAL_COMPLETION; 1216 } 1217 xfer->hcpriv = ii; 1218 usb_transfer_complete(xfer); 1219 } 1220 1221 /* 1222 * Called when a request does not complete. 1223 */ 1224 void 1225 uhci_timeout(addr) 1226 void *addr; 1227 { 1228 uhci_intr_info_t *ii = addr; 1229 1230 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1231 1232 #ifdef UHCI_DEBUG 1233 if (uhcidebug > 10) 1234 uhci_dump_tds(ii->stdstart); 1235 #endif 1236 1237 ii->xfer->device->bus->intr_context++; 1238 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1239 ii->xfer->device->bus->intr_context--; 1240 } 1241 1242 /* 1243 * Wait here until controller claims to have an interrupt. 1244 * Then call uhci_intr and return. Use timeout to avoid waiting 1245 * too long. 1246 * Only used during boot when interrupts are not enabled yet. 1247 */ 1248 void 1249 uhci_waitintr(sc, xfer) 1250 uhci_softc_t *sc; 1251 usbd_xfer_handle xfer; 1252 { 1253 int timo = xfer->timeout; 1254 uhci_intr_info_t *ii; 1255 1256 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1257 1258 xfer->status = USBD_IN_PROGRESS; 1259 for (; timo >= 0; timo--) { 1260 usb_delay_ms(&sc->sc_bus, 1); 1261 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1262 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1263 uhci_intr(sc); 1264 if (xfer->status != USBD_IN_PROGRESS) 1265 return; 1266 } 1267 } 1268 1269 /* Timeout */ 1270 DPRINTF(("uhci_waitintr: timeout\n")); 1271 for (ii = LIST_FIRST(&sc->sc_intrhead); 1272 ii != NULL && ii->xfer != xfer; 1273 ii = LIST_NEXT(ii, list)) 1274 ; 1275 #ifdef DIAGNOSTIC 1276 if (ii == NULL) 1277 panic("uhci_waitintr: lost intr_info\n"); 1278 #endif 1279 uhci_idone(ii); 1280 } 1281 1282 void 1283 uhci_poll(bus) 1284 struct usbd_bus *bus; 1285 { 1286 uhci_softc_t *sc = (uhci_softc_t *)bus; 1287 1288 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1289 uhci_intr(sc); 1290 } 1291 1292 #if 0 1293 void 1294 uhci_reset(p) 1295 void *p; 1296 { 1297 uhci_softc_t *sc = p; 1298 int n; 1299 1300 UHCICMD(sc, UHCI_CMD_HCRESET); 1301 /* The reset bit goes low when the controller is done. */ 1302 for (n = 0; n < UHCI_RESET_TIMEOUT && 1303 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1304 delay(100); 1305 if (n >= UHCI_RESET_TIMEOUT) 1306 printf("%s: controller did not reset\n", 1307 USBDEVNAME(sc->sc_bus.bdev)); 1308 } 1309 #endif 1310 1311 usbd_status 1312 uhci_run(sc, run) 1313 uhci_softc_t *sc; 1314 int run; 1315 { 1316 int s, n, running; 1317 u_int16_t cmd; 1318 1319 run = run != 0; 1320 s = splusb(); 1321 DPRINTF(("uhci_run: setting run=%d\n", run)); 1322 cmd = UREAD2(sc, UHCI_CMD); 1323 if (run) 1324 cmd |= UHCI_CMD_RS; 1325 else 1326 cmd &= ~UHCI_CMD_RS; 1327 UHCICMD(sc, cmd); 1328 for(n = 0; n < 10; n++) { 1329 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1330 /* return when we've entered the state we want */ 1331 if (run == running) { 1332 splx(s); 1333 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1334 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1335 return (USBD_NORMAL_COMPLETION); 1336 } 1337 usb_delay_ms(&sc->sc_bus, 1); 1338 } 1339 splx(s); 1340 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1341 run ? "start" : "stop"); 1342 return (USBD_IOERROR); 1343 } 1344 1345 /* 1346 * Memory management routines. 1347 * uhci_alloc_std allocates TDs 1348 * uhci_alloc_sqh allocates QHs 1349 * These two routines do their own free list management, 1350 * partly for speed, partly because allocating DMAable memory 1351 * has page size granularaity so much memory would be wasted if 1352 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1353 */ 1354 1355 uhci_soft_td_t * 1356 uhci_alloc_std(sc) 1357 uhci_softc_t *sc; 1358 { 1359 uhci_soft_td_t *std; 1360 usbd_status err; 1361 int i, offs; 1362 usb_dma_t dma; 1363 1364 if (sc->sc_freetds == NULL) { 1365 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1366 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1367 UHCI_TD_ALIGN, &dma); 1368 if (err) 1369 return (0); 1370 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1371 offs = i * UHCI_STD_SIZE; 1372 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1373 std->physaddr = DMAADDR(&dma) + offs; 1374 std->link.std = sc->sc_freetds; 1375 sc->sc_freetds = std; 1376 } 1377 } 1378 std = sc->sc_freetds; 1379 sc->sc_freetds = std->link.std; 1380 memset(&std->td, 0, sizeof(uhci_td_t)); 1381 return std; 1382 } 1383 1384 void 1385 uhci_free_std(sc, std) 1386 uhci_softc_t *sc; 1387 uhci_soft_td_t *std; 1388 { 1389 #ifdef DIAGNOSTIC 1390 #define TD_IS_FREE 0x12345678 1391 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1392 printf("uhci_free_std: freeing free TD %p\n", std); 1393 return; 1394 } 1395 std->td.td_token = htole32(TD_IS_FREE); 1396 #endif 1397 std->link.std = sc->sc_freetds; 1398 sc->sc_freetds = std; 1399 } 1400 1401 uhci_soft_qh_t * 1402 uhci_alloc_sqh(sc) 1403 uhci_softc_t *sc; 1404 { 1405 uhci_soft_qh_t *sqh; 1406 usbd_status err; 1407 int i, offs; 1408 usb_dma_t dma; 1409 1410 if (sc->sc_freeqhs == NULL) { 1411 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1412 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1413 UHCI_QH_ALIGN, &dma); 1414 if (err) 1415 return (0); 1416 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1417 offs = i * UHCI_SQH_SIZE; 1418 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1419 sqh->physaddr = DMAADDR(&dma) + offs; 1420 sqh->hlink = sc->sc_freeqhs; 1421 sc->sc_freeqhs = sqh; 1422 } 1423 } 1424 sqh = sc->sc_freeqhs; 1425 sc->sc_freeqhs = sqh->hlink; 1426 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1427 return (sqh); 1428 } 1429 1430 void 1431 uhci_free_sqh(sc, sqh) 1432 uhci_softc_t *sc; 1433 uhci_soft_qh_t *sqh; 1434 { 1435 sqh->hlink = sc->sc_freeqhs; 1436 sc->sc_freeqhs = sqh; 1437 } 1438 1439 #if 0 1440 /* 1441 * Enter a list of transfers onto a control queue. 1442 * Called at splusb() 1443 */ 1444 void 1445 uhci_enter_ctl_q(sc, sqh, ii) 1446 uhci_softc_t *sc; 1447 uhci_soft_qh_t *sqh; 1448 uhci_intr_info_t *ii; 1449 { 1450 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1451 1452 } 1453 #endif 1454 1455 void 1456 uhci_free_std_chain(sc, std, stdend) 1457 uhci_softc_t *sc; 1458 uhci_soft_td_t *std; 1459 uhci_soft_td_t *stdend; 1460 { 1461 uhci_soft_td_t *p; 1462 1463 for (; std != stdend; std = p) { 1464 p = std->link.std; 1465 uhci_free_std(sc, std); 1466 } 1467 } 1468 1469 usbd_status 1470 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1471 struct uhci_pipe *upipe; 1472 uhci_softc_t *sc; 1473 int len, rd; 1474 u_int16_t flags; 1475 usb_dma_t *dma; 1476 uhci_soft_td_t **sp, **ep; 1477 { 1478 uhci_soft_td_t *p, *lastp; 1479 uhci_physaddr_t lastlink; 1480 int i, ntd, l, tog, maxp; 1481 u_int32_t status; 1482 int addr = upipe->pipe.device->address; 1483 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1484 1485 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1486 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1487 upipe->pipe.device->lowspeed, flags)); 1488 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1489 if (maxp == 0) { 1490 printf("uhci_alloc_std_chain: maxp=0\n"); 1491 return (USBD_INVAL); 1492 } 1493 ntd = (len + maxp - 1) / maxp; 1494 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1495 ntd++; 1496 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1497 if (ntd == 0) { 1498 *sp = *ep = 0; 1499 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1500 return (USBD_NORMAL_COMPLETION); 1501 } 1502 tog = upipe->nexttoggle; 1503 if (ntd % 2 == 0) 1504 tog ^= 1; 1505 upipe->nexttoggle = tog ^ 1; 1506 lastp = 0; 1507 lastlink = UHCI_PTR_T; 1508 ntd--; 1509 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1510 if (upipe->pipe.device->lowspeed) 1511 status |= UHCI_TD_LS; 1512 if (flags & USBD_SHORT_XFER_OK) 1513 status |= UHCI_TD_SPD; 1514 for (i = ntd; i >= 0; i--) { 1515 p = uhci_alloc_std(sc); 1516 if (p == NULL) { 1517 uhci_free_std_chain(sc, lastp, 0); 1518 return (USBD_NOMEM); 1519 } 1520 p->link.std = lastp; 1521 if (lastlink == UHCI_PTR_T) 1522 p->td.td_link = htole32(lastlink); 1523 else 1524 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1525 lastp = p; 1526 lastlink = p->physaddr; 1527 p->td.td_status = htole32(status); 1528 if (i == ntd) { 1529 /* last TD */ 1530 l = len % maxp; 1531 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1532 l = maxp; 1533 *ep = p; 1534 } else 1535 l = maxp; 1536 p->td.td_token = 1537 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1538 UHCI_TD_OUT(l, endpt, addr, tog)); 1539 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1540 tog ^= 1; 1541 } 1542 *sp = lastp; 1543 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1544 upipe->nexttoggle)); 1545 return (USBD_NORMAL_COMPLETION); 1546 } 1547 1548 void 1549 uhci_device_clear_toggle(pipe) 1550 usbd_pipe_handle pipe; 1551 { 1552 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1553 upipe->nexttoggle = 0; 1554 } 1555 1556 void 1557 uhci_noop(pipe) 1558 usbd_pipe_handle pipe; 1559 { 1560 } 1561 1562 usbd_status 1563 uhci_device_bulk_transfer(xfer) 1564 usbd_xfer_handle xfer; 1565 { 1566 usbd_status err; 1567 1568 /* Insert last in queue. */ 1569 err = usb_insert_transfer(xfer); 1570 if (err) 1571 return (err); 1572 1573 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1574 * start first 1575 */ 1576 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1577 } 1578 1579 usbd_status 1580 uhci_device_bulk_start(xfer) 1581 usbd_xfer_handle xfer; 1582 { 1583 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1584 usbd_device_handle dev = upipe->pipe.device; 1585 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1586 uhci_intr_info_t *ii = upipe->iinfo; 1587 uhci_soft_td_t *data, *dataend; 1588 uhci_soft_qh_t *sqh; 1589 usbd_status err; 1590 int len, isread, endpt; 1591 int s; 1592 1593 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1594 xfer, xfer->length, xfer->flags)); 1595 1596 if (sc->sc_dying) 1597 return (USBD_IOERROR); 1598 1599 #ifdef DIAGNOSTIC 1600 if (xfer->rqflags & URQ_REQUEST) 1601 panic("uhci_device_bulk_transfer: a request\n"); 1602 #endif 1603 1604 len = xfer->length; 1605 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1606 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1607 sqh = upipe->u.bulk.sqh; 1608 1609 upipe->u.bulk.isread = isread; 1610 upipe->u.bulk.length = len; 1611 1612 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1613 &xfer->dmabuf, &data, &dataend); 1614 if (err) 1615 return (err); 1616 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1617 1618 #ifdef UHCI_DEBUG 1619 if (uhcidebug > 8) { 1620 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1621 uhci_dump_tds(data); 1622 } 1623 #endif 1624 1625 /* Set up interrupt info. */ 1626 ii->xfer = xfer; 1627 ii->stdstart = data; 1628 ii->stdend = dataend; 1629 #if defined(__FreeBSD__) 1630 callout_handle_init(&ii->timeout_handle); 1631 #endif 1632 #ifdef DIAGNOSTIC 1633 if (!ii->isdone) { 1634 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1635 } 1636 ii->isdone = 0; 1637 #endif 1638 1639 sqh->elink = data; 1640 sqh->qh.qh_elink = htole32(data->physaddr); 1641 sqh->intr_info = ii; 1642 1643 s = splusb(); 1644 uhci_add_bulk(sc, sqh); 1645 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1646 1647 if (xfer->timeout && !sc->sc_bus.use_polling) { 1648 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1649 ii->timeout_handle); 1650 } 1651 splx(s); 1652 1653 #ifdef UHCI_DEBUG 1654 if (uhcidebug > 10) { 1655 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1656 uhci_dump_tds(data); 1657 } 1658 #endif 1659 1660 if (sc->sc_bus.use_polling) 1661 uhci_waitintr(sc, xfer); 1662 1663 return (USBD_IN_PROGRESS); 1664 } 1665 1666 /* Abort a device bulk request. */ 1667 void 1668 uhci_device_bulk_abort(xfer) 1669 usbd_xfer_handle xfer; 1670 { 1671 DPRINTF(("uhci_device_bulk_abort:\n")); 1672 uhci_abort_xfer(xfer, USBD_CANCELLED); 1673 } 1674 1675 void 1676 uhci_abort_xfer(xfer, status) 1677 usbd_xfer_handle xfer; 1678 usbd_status status; 1679 { 1680 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1681 uhci_intr_info_t *ii = upipe->iinfo; 1682 uhci_soft_td_t *std; 1683 1684 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1685 1686 /* Make interrupt routine ignore it, */ 1687 xfer->status = status; 1688 1689 /* don't timeout, */ 1690 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1691 1692 /* make hardware ignore it, */ 1693 for (std = ii->stdstart; std != 0; std = std->link.std) 1694 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1695 1696 xfer->hcpriv = ii; 1697 1698 #if 1 1699 /* Make sure hardware has completed. */ 1700 if (xfer->device->bus->intr_context) { 1701 /* We have no process context, so we can't use tsleep(). */ 1702 callout_reset(&xfer->abort_handle, hz / USB_FRAMES_PER_SECOND, 1703 uhci_abort_xfer_end, xfer); 1704 } else { 1705 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1706 KASSERT(intr_nesting_level == 0, 1707 ("ohci_abort_req in interrupt context")); 1708 #endif 1709 usb_delay_ms(xfer->pipe->device->bus, 1); 1710 /* and call final part of interrupt handler. */ 1711 uhci_abort_xfer_end(xfer); 1712 } 1713 #else 1714 delay(1000); 1715 uhci_abort_xfer_end(xfer); 1716 #endif 1717 } 1718 1719 void 1720 uhci_abort_xfer_end(v) 1721 void *v; 1722 { 1723 usbd_xfer_handle xfer = v; 1724 int s; 1725 1726 s = splusb(); 1727 usb_transfer_complete(xfer); 1728 splx(s); 1729 } 1730 1731 /* Close a device bulk pipe. */ 1732 void 1733 uhci_device_bulk_close(pipe) 1734 usbd_pipe_handle pipe; 1735 { 1736 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1737 usbd_device_handle dev = upipe->pipe.device; 1738 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1739 1740 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1741 uhci_free_intr_info(upipe->iinfo); 1742 /* XXX free other resources */ 1743 } 1744 1745 usbd_status 1746 uhci_device_ctrl_transfer(xfer) 1747 usbd_xfer_handle xfer; 1748 { 1749 usbd_status err; 1750 1751 /* Insert last in queue. */ 1752 err = usb_insert_transfer(xfer); 1753 if (err) 1754 return (err); 1755 1756 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1757 * start first 1758 */ 1759 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1760 } 1761 1762 usbd_status 1763 uhci_device_ctrl_start(xfer) 1764 usbd_xfer_handle xfer; 1765 { 1766 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1767 usbd_status err; 1768 1769 if (sc->sc_dying) 1770 return (USBD_IOERROR); 1771 1772 #ifdef DIAGNOSTIC 1773 if (!(xfer->rqflags & URQ_REQUEST)) 1774 panic("uhci_device_ctrl_transfer: not a request\n"); 1775 #endif 1776 1777 err = uhci_device_request(xfer); 1778 if (err) 1779 return (err); 1780 1781 if (sc->sc_bus.use_polling) 1782 uhci_waitintr(sc, xfer); 1783 return (USBD_IN_PROGRESS); 1784 } 1785 1786 usbd_status 1787 uhci_device_intr_transfer(xfer) 1788 usbd_xfer_handle xfer; 1789 { 1790 usbd_status err; 1791 1792 /* Insert last in queue. */ 1793 err = usb_insert_transfer(xfer); 1794 if (err) 1795 return (err); 1796 1797 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1798 * start first 1799 */ 1800 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1801 } 1802 1803 usbd_status 1804 uhci_device_intr_start(xfer) 1805 usbd_xfer_handle xfer; 1806 { 1807 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1808 usbd_device_handle dev = upipe->pipe.device; 1809 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1810 uhci_intr_info_t *ii = upipe->iinfo; 1811 uhci_soft_td_t *data, *dataend; 1812 uhci_soft_qh_t *sqh; 1813 usbd_status err; 1814 int i, s; 1815 1816 if (sc->sc_dying) 1817 return (USBD_IOERROR); 1818 1819 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1820 xfer, xfer->length, xfer->flags)); 1821 1822 #ifdef DIAGNOSTIC 1823 if (xfer->rqflags & URQ_REQUEST) 1824 panic("uhci_device_intr_transfer: a request\n"); 1825 #endif 1826 1827 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1828 &xfer->dmabuf, &data, &dataend); 1829 if (err) 1830 return (err); 1831 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1832 1833 #ifdef UHCI_DEBUG 1834 if (uhcidebug > 10) { 1835 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1836 uhci_dump_tds(data); 1837 uhci_dump_qh(upipe->u.intr.qhs[0]); 1838 } 1839 #endif 1840 1841 s = splusb(); 1842 /* Set up interrupt info. */ 1843 ii->xfer = xfer; 1844 ii->stdstart = data; 1845 ii->stdend = dataend; 1846 #if defined(__FreeBSD__) 1847 callout_handle_init(&ii->timeout_handle); 1848 #endif 1849 #ifdef DIAGNOSTIC 1850 if (!ii->isdone) { 1851 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1852 } 1853 ii->isdone = 0; 1854 #endif 1855 1856 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1857 upipe->u.intr.qhs[0])); 1858 for (i = 0; i < upipe->u.intr.npoll; i++) { 1859 sqh = upipe->u.intr.qhs[i]; 1860 sqh->elink = data; 1861 sqh->qh.qh_elink = htole32(data->physaddr); 1862 } 1863 splx(s); 1864 1865 #ifdef UHCI_DEBUG 1866 if (uhcidebug > 10) { 1867 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1868 uhci_dump_tds(data); 1869 uhci_dump_qh(upipe->u.intr.qhs[0]); 1870 } 1871 #endif 1872 1873 return (USBD_IN_PROGRESS); 1874 } 1875 1876 /* Abort a device control request. */ 1877 void 1878 uhci_device_ctrl_abort(xfer) 1879 usbd_xfer_handle xfer; 1880 { 1881 DPRINTF(("uhci_device_ctrl_abort:\n")); 1882 uhci_abort_xfer(xfer, USBD_CANCELLED); 1883 } 1884 1885 /* Close a device control pipe. */ 1886 void 1887 uhci_device_ctrl_close(pipe) 1888 usbd_pipe_handle pipe; 1889 { 1890 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1891 1892 uhci_free_intr_info(upipe->iinfo); 1893 /* XXX free other resources? */ 1894 } 1895 1896 /* Abort a device interrupt request. */ 1897 void 1898 uhci_device_intr_abort(xfer) 1899 usbd_xfer_handle xfer; 1900 { 1901 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1902 if (xfer->pipe->intrxfer == xfer) { 1903 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1904 xfer->pipe->intrxfer = 0; 1905 } 1906 uhci_abort_xfer(xfer, USBD_CANCELLED); 1907 } 1908 1909 /* Close a device interrupt pipe. */ 1910 void 1911 uhci_device_intr_close(pipe) 1912 usbd_pipe_handle pipe; 1913 { 1914 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1915 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1916 int i, s, npoll; 1917 1918 upipe->iinfo->stdstart = 0; /* inactive */ 1919 1920 /* Unlink descriptors from controller data structures. */ 1921 npoll = upipe->u.intr.npoll; 1922 uhci_lock_frames(sc); 1923 for (i = 0; i < npoll; i++) 1924 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1925 upipe->u.intr.qhs[i]); 1926 uhci_unlock_frames(sc); 1927 1928 /* 1929 * We now have to wait for any activity on the physical 1930 * descriptors to stop. 1931 */ 1932 usb_delay_ms(&sc->sc_bus, 2); 1933 1934 for(i = 0; i < npoll; i++) 1935 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1936 free(upipe->u.intr.qhs, M_USBHC); 1937 1938 s = splusb(); 1939 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1940 splx(s); 1941 uhci_free_intr_info(upipe->iinfo); 1942 1943 /* XXX free other resources */ 1944 } 1945 1946 usbd_status 1947 uhci_device_request(xfer) 1948 usbd_xfer_handle xfer; 1949 { 1950 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1951 usb_device_request_t *req = &xfer->request; 1952 usbd_device_handle dev = upipe->pipe.device; 1953 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1954 int addr = dev->address; 1955 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1956 uhci_intr_info_t *ii = upipe->iinfo; 1957 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1958 uhci_soft_qh_t *sqh; 1959 int len; 1960 u_int32_t ls; 1961 usbd_status err; 1962 int isread; 1963 int s; 1964 1965 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1966 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1967 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1968 UGETW(req->wIndex), UGETW(req->wLength), 1969 addr, endpt)); 1970 1971 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1972 isread = req->bmRequestType & UT_READ; 1973 len = UGETW(req->wLength); 1974 1975 setup = upipe->u.ctl.setup; 1976 stat = upipe->u.ctl.stat; 1977 sqh = upipe->u.ctl.sqh; 1978 1979 /* Set up data transaction */ 1980 if (len != 0) { 1981 upipe->nexttoggle = 1; 1982 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1983 &xfer->dmabuf, &data, &dataend); 1984 if (err) 1985 return (err); 1986 next = data; 1987 dataend->link.std = stat; 1988 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 1989 } else { 1990 next = stat; 1991 } 1992 upipe->u.ctl.length = len; 1993 1994 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1995 1996 setup->link.std = next; 1997 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 1998 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1999 UHCI_TD_ACTIVE); 2000 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2001 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2002 2003 stat->link.std = 0; 2004 stat->td.td_link = htole32(UHCI_PTR_T); 2005 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2006 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2007 stat->td.td_token = 2008 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2009 UHCI_TD_IN (0, endpt, addr, 1)); 2010 stat->td.td_buffer = htole32(0); 2011 2012 #ifdef UHCI_DEBUG 2013 if (uhcidebug > 10) { 2014 DPRINTF(("uhci_device_request: before transfer\n")); 2015 uhci_dump_tds(setup); 2016 } 2017 #endif 2018 2019 /* Set up interrupt info. */ 2020 ii->xfer = xfer; 2021 ii->stdstart = setup; 2022 ii->stdend = stat; 2023 #if defined(__FreeBSD__) 2024 callout_handle_init(&ii->timeout_handle); 2025 #endif 2026 #ifdef DIAGNOSTIC 2027 if (!ii->isdone) { 2028 printf("uhci_device_request: not done, ii=%p\n", ii); 2029 } 2030 ii->isdone = 0; 2031 #endif 2032 2033 sqh->elink = setup; 2034 sqh->qh.qh_elink = htole32(setup->physaddr); 2035 sqh->intr_info = ii; 2036 2037 s = splusb(); 2038 uhci_add_ctrl(sc, sqh); 2039 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2040 #ifdef UHCI_DEBUG 2041 if (uhcidebug > 12) { 2042 uhci_soft_td_t *std; 2043 uhci_soft_qh_t *xqh; 2044 uhci_soft_qh_t *sxqh; 2045 int maxqh = 0; 2046 uhci_physaddr_t link; 2047 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2048 for (std = sc->sc_vframes[0].htd, link = 0; 2049 (link & UHCI_PTR_Q) == 0; 2050 std = std->link.std) { 2051 link = le32toh(std->td.td_link); 2052 uhci_dump_td(std); 2053 } 2054 sxqh = (uhci_soft_qh_t *)std; 2055 uhci_dump_qh(sxqh); 2056 for (xqh = sxqh; 2057 xqh != NULL; 2058 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2059 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2060 uhci_dump_qh(xqh); 2061 } 2062 DPRINTF(("Enqueued QH:\n")); 2063 uhci_dump_qh(sqh); 2064 uhci_dump_tds(sqh->elink); 2065 } 2066 #endif 2067 if (xfer->timeout && !sc->sc_bus.use_polling) { 2068 usb_timeout(uhci_timeout, ii, 2069 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 2070 } 2071 splx(s); 2072 2073 return (USBD_NORMAL_COMPLETION); 2074 } 2075 2076 usbd_status 2077 uhci_device_isoc_transfer(xfer) 2078 usbd_xfer_handle xfer; 2079 { 2080 usbd_status err; 2081 2082 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2083 2084 /* Put it on our queue, */ 2085 err = usb_insert_transfer(xfer); 2086 2087 /* bail out on error, */ 2088 if (err && err != USBD_IN_PROGRESS) 2089 return (err); 2090 2091 /* XXX should check inuse here */ 2092 2093 /* insert into schedule, */ 2094 uhci_device_isoc_enter(xfer); 2095 2096 /* and put on interrupt list if the pipe wasn't running */ 2097 if (!err) 2098 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2099 2100 return (err); 2101 } 2102 2103 void 2104 uhci_device_isoc_enter(xfer) 2105 usbd_xfer_handle xfer; 2106 { 2107 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2108 usbd_device_handle dev = upipe->pipe.device; 2109 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2110 struct iso *iso = &upipe->u.iso; 2111 uhci_soft_td_t *std; 2112 u_int32_t buf, len, status; 2113 int s, i, next, nframes; 2114 2115 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2116 "nframes=%d\n", 2117 iso->inuse, iso->next, xfer, xfer->nframes)); 2118 2119 if (sc->sc_dying) 2120 return; 2121 2122 if (xfer->status == USBD_IN_PROGRESS) { 2123 /* This request has already been entered into the frame list */ 2124 /* XXX */ 2125 } 2126 2127 #ifdef DIAGNOSTIC 2128 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2129 printf("uhci_device_isoc_enter: overflow!\n"); 2130 #endif 2131 2132 next = iso->next; 2133 if (next == -1) { 2134 /* Not in use yet, schedule it a few frames ahead. */ 2135 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2136 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2137 } 2138 2139 xfer->status = USBD_IN_PROGRESS; 2140 xfer->hcprivint = next; 2141 2142 buf = DMAADDR(&xfer->dmabuf); 2143 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2144 UHCI_TD_ACTIVE | 2145 UHCI_TD_IOS); 2146 nframes = xfer->nframes; 2147 s = splusb(); 2148 for (i = 0; i < nframes; i++) { 2149 std = iso->stds[next]; 2150 if (++next >= UHCI_VFRAMELIST_COUNT) 2151 next = 0; 2152 len = xfer->frlengths[i]; 2153 std->td.td_buffer = htole32(buf); 2154 if (i == nframes - 1) 2155 status |= UHCI_TD_IOC; 2156 std->td.td_status = htole32(status); 2157 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2158 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2159 #ifdef UHCI_DEBUG 2160 if (uhcidebug > 5) { 2161 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2162 uhci_dump_td(std); 2163 } 2164 #endif 2165 buf += len; 2166 } 2167 iso->next = next; 2168 iso->inuse += xfer->nframes; 2169 2170 splx(s); 2171 } 2172 2173 usbd_status 2174 uhci_device_isoc_start(xfer) 2175 usbd_xfer_handle xfer; 2176 { 2177 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2178 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2179 uhci_intr_info_t *ii = upipe->iinfo; 2180 uhci_soft_td_t *end; 2181 int s, i; 2182 2183 if (sc->sc_dying) 2184 return (USBD_IOERROR); 2185 2186 #ifdef DIAGNOSTIC 2187 if (xfer->status != USBD_IN_PROGRESS) 2188 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2189 #endif 2190 2191 /* Find the last TD */ 2192 i = xfer->hcprivint + xfer->nframes; 2193 if (i >= UHCI_VFRAMELIST_COUNT) 2194 i -= UHCI_VFRAMELIST_COUNT; 2195 end = upipe->u.iso.stds[i]; 2196 2197 s = splusb(); 2198 2199 /* Set up interrupt info. */ 2200 ii->xfer = xfer; 2201 ii->stdstart = end; 2202 ii->stdend = end; 2203 #if defined(__FreeBSD__) 2204 callout_handle_init(&ii->timeout_handle); 2205 #endif 2206 #ifdef DIAGNOSTIC 2207 if (!ii->isdone) { 2208 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2209 } 2210 ii->isdone = 0; 2211 #endif 2212 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2213 2214 splx(s); 2215 2216 return (USBD_IN_PROGRESS); 2217 } 2218 2219 void 2220 uhci_device_isoc_abort(xfer) 2221 usbd_xfer_handle xfer; 2222 { 2223 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2224 uhci_intr_info_t *ii = upipe->iinfo; 2225 uhci_soft_td_t **stds = upipe->u.iso.stds; 2226 uhci_soft_td_t *std; 2227 int i, n, nframes; 2228 2229 /* Make interrupt routine ignore it, */ 2230 xfer->status = USBD_CANCELLED; 2231 2232 /* make hardware ignore it, */ 2233 nframes = xfer->nframes; 2234 n = xfer->hcprivint; 2235 for (i = 0; i < nframes; i++) { 2236 std = stds[n]; 2237 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2238 if (++n >= UHCI_VFRAMELIST_COUNT) 2239 n = 0; 2240 } 2241 2242 xfer->hcpriv = ii; 2243 2244 /* make sure hardware has completed, */ 2245 if (xfer->device->bus->intr_context) { 2246 /* We have no process context, so we can't use tsleep(). */ 2247 callout_reset(&xfer->abort_handle, hz / USB_FRAMES_PER_SECOND, 2248 uhci_abort_xfer_end, xfer); 2249 } else { 2250 usb_delay_ms(xfer->pipe->device->bus, 1); 2251 /* and call final part of interrupt handler. */ 2252 uhci_abort_xfer_end(xfer); 2253 } 2254 } 2255 2256 void 2257 uhci_device_isoc_close(pipe) 2258 usbd_pipe_handle pipe; 2259 { 2260 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2261 usbd_device_handle dev = upipe->pipe.device; 2262 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2263 uhci_soft_td_t *std, *vstd; 2264 struct iso *iso; 2265 int i; 2266 2267 /* 2268 * Make sure all TDs are marked as inactive. 2269 * Wait for completion. 2270 * Unschedule. 2271 * Deallocate. 2272 */ 2273 iso = &upipe->u.iso; 2274 2275 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2276 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2277 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2278 2279 uhci_lock_frames(sc); 2280 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2281 std = iso->stds[i]; 2282 for (vstd = sc->sc_vframes[i].htd; 2283 vstd != NULL && vstd->link.std != std; 2284 vstd = vstd->link.std) 2285 ; 2286 if (vstd == NULL) { 2287 /*panic*/ 2288 printf("uhci_device_isoc_close: %p not found\n", std); 2289 uhci_unlock_frames(sc); 2290 return; 2291 } 2292 vstd->link = std->link; 2293 vstd->td.td_link = std->td.td_link; 2294 uhci_free_std(sc, std); 2295 } 2296 uhci_unlock_frames(sc); 2297 2298 free(iso->stds, M_USBHC); 2299 } 2300 2301 usbd_status 2302 uhci_setup_isoc(pipe) 2303 usbd_pipe_handle pipe; 2304 { 2305 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2306 usbd_device_handle dev = upipe->pipe.device; 2307 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2308 int addr = upipe->pipe.device->address; 2309 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2310 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2311 uhci_soft_td_t *std, *vstd; 2312 u_int32_t token; 2313 struct iso *iso; 2314 int i; 2315 2316 iso = &upipe->u.iso; 2317 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2318 M_USBHC, M_WAITOK); 2319 2320 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2321 UHCI_TD_OUT(0, endpt, addr, 0); 2322 2323 /* Allocate the TDs and mark as inactive; */ 2324 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2325 std = uhci_alloc_std(sc); 2326 if (std == 0) 2327 goto bad; 2328 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2329 std->td.td_token = htole32(token); 2330 iso->stds[i] = std; 2331 } 2332 2333 /* Insert TDs into schedule. */ 2334 uhci_lock_frames(sc); 2335 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2336 std = iso->stds[i]; 2337 vstd = sc->sc_vframes[i].htd; 2338 std->link = vstd->link; 2339 std->td.td_link = vstd->td.td_link; 2340 vstd->link.std = std; 2341 vstd->td.td_link = htole32(std->physaddr); 2342 } 2343 uhci_unlock_frames(sc); 2344 2345 iso->next = -1; 2346 iso->inuse = 0; 2347 2348 return (USBD_NORMAL_COMPLETION); 2349 2350 bad: 2351 while (--i >= 0) 2352 uhci_free_std(sc, iso->stds[i]); 2353 free(iso->stds, M_USBHC); 2354 return (USBD_NOMEM); 2355 } 2356 2357 void 2358 uhci_device_isoc_done(xfer) 2359 usbd_xfer_handle xfer; 2360 { 2361 uhci_intr_info_t *ii = xfer->hcpriv; 2362 2363 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2364 2365 /* Turn off the interrupt since it is active even if the TD is not. */ 2366 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2367 2368 LIST_REMOVE(ii, list); /* remove from active list */ 2369 } 2370 2371 void 2372 uhci_device_intr_done(xfer) 2373 usbd_xfer_handle xfer; 2374 { 2375 uhci_intr_info_t *ii = xfer->hcpriv; 2376 uhci_softc_t *sc = ii->sc; 2377 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2378 uhci_soft_qh_t *sqh; 2379 int i, npoll; 2380 2381 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2382 2383 npoll = upipe->u.intr.npoll; 2384 for(i = 0; i < npoll; i++) { 2385 sqh = upipe->u.intr.qhs[i]; 2386 sqh->elink = 0; 2387 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2388 } 2389 uhci_free_std_chain(sc, ii->stdstart, 0); 2390 2391 /* XXX Wasteful. */ 2392 if (xfer->pipe->repeat) { 2393 uhci_soft_td_t *data, *dataend; 2394 2395 /* This alloc cannot fail since we freed the chain above. */ 2396 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2397 &xfer->dmabuf, &data, &dataend); 2398 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2399 2400 #ifdef UHCI_DEBUG 2401 if (uhcidebug > 10) { 2402 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2403 uhci_dump_tds(data); 2404 uhci_dump_qh(upipe->u.intr.qhs[0]); 2405 } 2406 #endif 2407 2408 ii->stdstart = data; 2409 ii->stdend = dataend; 2410 #if defined(__FreeBSD__) 2411 callout_handle_init(&ii->timeout_handle); 2412 #endif 2413 #ifdef DIAGNOSTIC 2414 if (!ii->isdone) { 2415 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2416 } 2417 ii->isdone = 0; 2418 #endif 2419 for (i = 0; i < npoll; i++) { 2420 sqh = upipe->u.intr.qhs[i]; 2421 sqh->elink = data; 2422 sqh->qh.qh_elink = htole32(data->physaddr); 2423 } 2424 } else { 2425 ii->stdstart = 0; /* mark as inactive */ 2426 } 2427 } 2428 2429 /* Deallocate request data structures */ 2430 void 2431 uhci_device_ctrl_done(xfer) 2432 usbd_xfer_handle xfer; 2433 { 2434 uhci_intr_info_t *ii = xfer->hcpriv; 2435 uhci_softc_t *sc = ii->sc; 2436 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2437 2438 #ifdef DIAGNOSTIC 2439 if (!(xfer->rqflags & URQ_REQUEST)) 2440 panic("uhci_ctrl_done: not a request\n"); 2441 #endif 2442 2443 LIST_REMOVE(ii, list); /* remove from active list */ 2444 2445 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2446 2447 if (upipe->u.ctl.length != 0) 2448 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2449 2450 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2451 } 2452 2453 /* Deallocate request data structures */ 2454 void 2455 uhci_device_bulk_done(xfer) 2456 usbd_xfer_handle xfer; 2457 { 2458 uhci_intr_info_t *ii = xfer->hcpriv; 2459 uhci_softc_t *sc = ii->sc; 2460 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2461 2462 LIST_REMOVE(ii, list); /* remove from active list */ 2463 2464 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2465 2466 uhci_free_std_chain(sc, ii->stdstart, 0); 2467 2468 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2469 } 2470 2471 /* Add interrupt QH, called with vflock. */ 2472 void 2473 uhci_add_intr(sc, n, sqh) 2474 uhci_softc_t *sc; 2475 int n; 2476 uhci_soft_qh_t *sqh; 2477 { 2478 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2479 uhci_soft_qh_t *eqh; 2480 2481 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2482 eqh = vf->eqh; 2483 sqh->hlink = eqh->hlink; 2484 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2485 eqh->hlink = sqh; 2486 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2487 vf->eqh = sqh; 2488 vf->bandwidth++; 2489 } 2490 2491 /* Remove interrupt QH, called with vflock. */ 2492 void 2493 uhci_remove_intr(sc, n, sqh) 2494 uhci_softc_t *sc; 2495 int n; 2496 uhci_soft_qh_t *sqh; 2497 { 2498 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2499 uhci_soft_qh_t *pqh; 2500 2501 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2502 2503 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2504 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2505 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2506 DPRINTF(("uhci_remove_intr: QH not found\n")); 2507 return; 2508 } 2509 #else 2510 ; 2511 #endif 2512 pqh->hlink = sqh->hlink; 2513 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2514 if (vf->eqh == sqh) 2515 vf->eqh = pqh; 2516 vf->bandwidth--; 2517 } 2518 2519 usbd_status 2520 uhci_device_setintr(sc, upipe, ival) 2521 uhci_softc_t *sc; 2522 struct uhci_pipe *upipe; 2523 int ival; 2524 { 2525 uhci_soft_qh_t *sqh; 2526 int i, npoll, s; 2527 u_int bestbw, bw, bestoffs, offs; 2528 2529 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2530 if (ival == 0) { 2531 printf("uhci_setintr: 0 interval\n"); 2532 return (USBD_INVAL); 2533 } 2534 2535 if (ival > UHCI_VFRAMELIST_COUNT) 2536 ival = UHCI_VFRAMELIST_COUNT; 2537 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2538 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2539 2540 upipe->u.intr.npoll = npoll; 2541 upipe->u.intr.qhs = 2542 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2543 2544 /* 2545 * Figure out which offset in the schedule that has most 2546 * bandwidth left over. 2547 */ 2548 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2549 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2550 for (bw = i = 0; i < npoll; i++) 2551 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2552 if (bw < bestbw) { 2553 bestbw = bw; 2554 bestoffs = offs; 2555 } 2556 } 2557 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2558 2559 upipe->iinfo->stdstart = 0; 2560 for(i = 0; i < npoll; i++) { 2561 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2562 sqh->elink = 0; 2563 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2564 sqh->pos = MOD(i * ival + bestoffs); 2565 sqh->intr_info = upipe->iinfo; 2566 } 2567 #undef MOD 2568 2569 s = splusb(); 2570 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2571 splx(s); 2572 2573 uhci_lock_frames(sc); 2574 /* Enter QHs into the controller data structures. */ 2575 for(i = 0; i < npoll; i++) 2576 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2577 upipe->u.intr.qhs[i]); 2578 uhci_unlock_frames(sc); 2579 2580 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2581 return (USBD_NORMAL_COMPLETION); 2582 } 2583 2584 /* Open a new pipe. */ 2585 usbd_status 2586 uhci_open(pipe) 2587 usbd_pipe_handle pipe; 2588 { 2589 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2590 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2591 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2592 usbd_status err; 2593 int ival; 2594 2595 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2596 pipe, pipe->device->address, 2597 ed->bEndpointAddress, sc->sc_addr)); 2598 if (pipe->device->address == sc->sc_addr) { 2599 switch (ed->bEndpointAddress) { 2600 case USB_CONTROL_ENDPOINT: 2601 pipe->methods = &uhci_root_ctrl_methods; 2602 break; 2603 case UE_DIR_IN | UHCI_INTR_ENDPT: 2604 pipe->methods = &uhci_root_intr_methods; 2605 break; 2606 default: 2607 return (USBD_INVAL); 2608 } 2609 } else { 2610 upipe->iinfo = uhci_alloc_intr_info(sc); 2611 if (upipe->iinfo == 0) 2612 return (USBD_NOMEM); 2613 switch (ed->bmAttributes & UE_XFERTYPE) { 2614 case UE_CONTROL: 2615 pipe->methods = &uhci_device_ctrl_methods; 2616 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2617 if (upipe->u.ctl.sqh == NULL) 2618 goto bad; 2619 upipe->u.ctl.setup = uhci_alloc_std(sc); 2620 if (upipe->u.ctl.setup == NULL) { 2621 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2622 goto bad; 2623 } 2624 upipe->u.ctl.stat = uhci_alloc_std(sc); 2625 if (upipe->u.ctl.stat == NULL) { 2626 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2627 uhci_free_std(sc, upipe->u.ctl.setup); 2628 goto bad; 2629 } 2630 err = usb_allocmem(&sc->sc_bus, 2631 sizeof(usb_device_request_t), 2632 0, &upipe->u.ctl.reqdma); 2633 if (err) { 2634 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2635 uhci_free_std(sc, upipe->u.ctl.setup); 2636 uhci_free_std(sc, upipe->u.ctl.stat); 2637 goto bad; 2638 } 2639 break; 2640 case UE_INTERRUPT: 2641 pipe->methods = &uhci_device_intr_methods; 2642 ival = pipe->interval; 2643 if (ival == USBD_DEFAULT_INTERVAL) 2644 ival = ed->bInterval; 2645 return (uhci_device_setintr(sc, upipe, ival)); 2646 case UE_ISOCHRONOUS: 2647 pipe->methods = &uhci_device_isoc_methods; 2648 return (uhci_setup_isoc(pipe)); 2649 case UE_BULK: 2650 pipe->methods = &uhci_device_bulk_methods; 2651 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2652 if (upipe->u.bulk.sqh == NULL) 2653 goto bad; 2654 break; 2655 } 2656 } 2657 return (USBD_NORMAL_COMPLETION); 2658 2659 bad: 2660 uhci_free_intr_info(upipe->iinfo); 2661 return (USBD_NOMEM); 2662 } 2663 2664 /* 2665 * Data structures and routines to emulate the root hub. 2666 */ 2667 usb_device_descriptor_t uhci_devd = { 2668 USB_DEVICE_DESCRIPTOR_SIZE, 2669 UDESC_DEVICE, /* type */ 2670 {0x00, 0x01}, /* USB version */ 2671 UDCLASS_HUB, /* class */ 2672 UDSUBCLASS_HUB, /* subclass */ 2673 0, /* protocol */ 2674 64, /* max packet */ 2675 {0},{0},{0x00,0x01}, /* device id */ 2676 1,2,0, /* string indicies */ 2677 1 /* # of configurations */ 2678 }; 2679 2680 usb_config_descriptor_t uhci_confd = { 2681 USB_CONFIG_DESCRIPTOR_SIZE, 2682 UDESC_CONFIG, 2683 {USB_CONFIG_DESCRIPTOR_SIZE + 2684 USB_INTERFACE_DESCRIPTOR_SIZE + 2685 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2686 1, 2687 1, 2688 0, 2689 UC_SELF_POWERED, 2690 0 /* max power */ 2691 }; 2692 2693 usb_interface_descriptor_t uhci_ifcd = { 2694 USB_INTERFACE_DESCRIPTOR_SIZE, 2695 UDESC_INTERFACE, 2696 0, 2697 0, 2698 1, 2699 UICLASS_HUB, 2700 UISUBCLASS_HUB, 2701 0, 2702 0 2703 }; 2704 2705 usb_endpoint_descriptor_t uhci_endpd = { 2706 USB_ENDPOINT_DESCRIPTOR_SIZE, 2707 UDESC_ENDPOINT, 2708 UE_DIR_IN | UHCI_INTR_ENDPT, 2709 UE_INTERRUPT, 2710 {8}, 2711 255 2712 }; 2713 2714 usb_hub_descriptor_t uhci_hubd_piix = { 2715 USB_HUB_DESCRIPTOR_SIZE, 2716 UDESC_HUB, 2717 2, 2718 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2719 50, /* power on to power good */ 2720 0, 2721 { 0x00 }, /* both ports are removable */ 2722 }; 2723 2724 int 2725 uhci_str(p, l, s) 2726 usb_string_descriptor_t *p; 2727 int l; 2728 char *s; 2729 { 2730 int i; 2731 2732 if (l == 0) 2733 return (0); 2734 p->bLength = 2 * strlen(s) + 2; 2735 if (l == 1) 2736 return (1); 2737 p->bDescriptorType = UDESC_STRING; 2738 l -= 2; 2739 for (i = 0; s[i] && l > 1; i++, l -= 2) 2740 USETW2(p->bString[i], 0, s[i]); 2741 return (2*i+2); 2742 } 2743 2744 /* 2745 * Simulate a hardware hub by handling all the necessary requests. 2746 */ 2747 usbd_status 2748 uhci_root_ctrl_transfer(xfer) 2749 usbd_xfer_handle xfer; 2750 { 2751 usbd_status err; 2752 2753 /* Insert last in queue. */ 2754 err = usb_insert_transfer(xfer); 2755 if (err) 2756 return (err); 2757 2758 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2759 * start first 2760 */ 2761 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2762 } 2763 2764 usbd_status 2765 uhci_root_ctrl_start(xfer) 2766 usbd_xfer_handle xfer; 2767 { 2768 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2769 usb_device_request_t *req; 2770 void *buf = NULL; 2771 int port, x; 2772 int s, len, value, index, status, change, l, totlen = 0; 2773 usb_port_status_t ps; 2774 usbd_status err; 2775 2776 if (sc->sc_dying) 2777 return (USBD_IOERROR); 2778 2779 #ifdef DIAGNOSTIC 2780 if (!(xfer->rqflags & URQ_REQUEST)) 2781 panic("uhci_root_ctrl_transfer: not a request\n"); 2782 #endif 2783 req = &xfer->request; 2784 2785 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2786 req->bmRequestType, req->bRequest)); 2787 2788 len = UGETW(req->wLength); 2789 value = UGETW(req->wValue); 2790 index = UGETW(req->wIndex); 2791 2792 if (len != 0) 2793 buf = KERNADDR(&xfer->dmabuf); 2794 2795 #define C(x,y) ((x) | ((y) << 8)) 2796 switch(C(req->bRequest, req->bmRequestType)) { 2797 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2798 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2799 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2800 /* 2801 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2802 * for the integrated root hub. 2803 */ 2804 break; 2805 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2806 if (len > 0) { 2807 *(u_int8_t *)buf = sc->sc_conf; 2808 totlen = 1; 2809 } 2810 break; 2811 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2812 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2813 switch(value >> 8) { 2814 case UDESC_DEVICE: 2815 if ((value & 0xff) != 0) { 2816 err = USBD_IOERROR; 2817 goto ret; 2818 } 2819 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2820 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2821 memcpy(buf, &uhci_devd, l); 2822 break; 2823 case UDESC_CONFIG: 2824 if ((value & 0xff) != 0) { 2825 err = USBD_IOERROR; 2826 goto ret; 2827 } 2828 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2829 memcpy(buf, &uhci_confd, l); 2830 buf = (char *)buf + l; 2831 len -= l; 2832 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2833 totlen += l; 2834 memcpy(buf, &uhci_ifcd, l); 2835 buf = (char *)buf + l; 2836 len -= l; 2837 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2838 totlen += l; 2839 memcpy(buf, &uhci_endpd, l); 2840 break; 2841 case UDESC_STRING: 2842 if (len == 0) 2843 break; 2844 *(u_int8_t *)buf = 0; 2845 totlen = 1; 2846 switch (value & 0xff) { 2847 case 1: /* Vendor */ 2848 totlen = uhci_str(buf, len, sc->sc_vendor); 2849 break; 2850 case 2: /* Product */ 2851 totlen = uhci_str(buf, len, "UHCI root hub"); 2852 break; 2853 } 2854 break; 2855 default: 2856 err = USBD_IOERROR; 2857 goto ret; 2858 } 2859 break; 2860 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2861 if (len > 0) { 2862 *(u_int8_t *)buf = 0; 2863 totlen = 1; 2864 } 2865 break; 2866 case C(UR_GET_STATUS, UT_READ_DEVICE): 2867 if (len > 1) { 2868 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2869 totlen = 2; 2870 } 2871 break; 2872 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2873 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2874 if (len > 1) { 2875 USETW(((usb_status_t *)buf)->wStatus, 0); 2876 totlen = 2; 2877 } 2878 break; 2879 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2880 if (value >= USB_MAX_DEVICES) { 2881 err = USBD_IOERROR; 2882 goto ret; 2883 } 2884 sc->sc_addr = value; 2885 break; 2886 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2887 if (value != 0 && value != 1) { 2888 err = USBD_IOERROR; 2889 goto ret; 2890 } 2891 sc->sc_conf = value; 2892 break; 2893 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2894 break; 2895 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2896 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2897 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2898 err = USBD_IOERROR; 2899 goto ret; 2900 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2901 break; 2902 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2903 break; 2904 /* Hub requests */ 2905 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2906 break; 2907 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2908 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2909 "port=%d feature=%d\n", 2910 index, value)); 2911 if (index == 1) 2912 port = UHCI_PORTSC1; 2913 else if (index == 2) 2914 port = UHCI_PORTSC2; 2915 else { 2916 err = USBD_IOERROR; 2917 goto ret; 2918 } 2919 switch(value) { 2920 case UHF_PORT_ENABLE: 2921 x = UREAD2(sc, port); 2922 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2923 break; 2924 case UHF_PORT_SUSPEND: 2925 x = UREAD2(sc, port); 2926 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2927 break; 2928 case UHF_PORT_RESET: 2929 x = UREAD2(sc, port); 2930 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2931 break; 2932 case UHF_C_PORT_CONNECTION: 2933 x = UREAD2(sc, port); 2934 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2935 break; 2936 case UHF_C_PORT_ENABLE: 2937 x = UREAD2(sc, port); 2938 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2939 break; 2940 case UHF_C_PORT_OVER_CURRENT: 2941 x = UREAD2(sc, port); 2942 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2943 break; 2944 case UHF_C_PORT_RESET: 2945 sc->sc_isreset = 0; 2946 err = USBD_NORMAL_COMPLETION; 2947 goto ret; 2948 case UHF_PORT_CONNECTION: 2949 case UHF_PORT_OVER_CURRENT: 2950 case UHF_PORT_POWER: 2951 case UHF_PORT_LOW_SPEED: 2952 case UHF_C_PORT_SUSPEND: 2953 default: 2954 err = USBD_IOERROR; 2955 goto ret; 2956 } 2957 break; 2958 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2959 if (index == 1) 2960 port = UHCI_PORTSC1; 2961 else if (index == 2) 2962 port = UHCI_PORTSC2; 2963 else { 2964 err = USBD_IOERROR; 2965 goto ret; 2966 } 2967 if (len > 0) { 2968 *(u_int8_t *)buf = 2969 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2970 UHCI_PORTSC_LS_SHIFT; 2971 totlen = 1; 2972 } 2973 break; 2974 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2975 if (value != 0) { 2976 err = USBD_IOERROR; 2977 goto ret; 2978 } 2979 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2980 totlen = l; 2981 memcpy(buf, &uhci_hubd_piix, l); 2982 break; 2983 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2984 if (len != 4) { 2985 err = USBD_IOERROR; 2986 goto ret; 2987 } 2988 memset(buf, 0, len); 2989 totlen = len; 2990 break; 2991 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2992 if (index == 1) 2993 port = UHCI_PORTSC1; 2994 else if (index == 2) 2995 port = UHCI_PORTSC2; 2996 else { 2997 err = USBD_IOERROR; 2998 goto ret; 2999 } 3000 if (len != 4) { 3001 err = USBD_IOERROR; 3002 goto ret; 3003 } 3004 x = UREAD2(sc, port); 3005 status = change = 0; 3006 if (x & UHCI_PORTSC_CCS ) 3007 status |= UPS_CURRENT_CONNECT_STATUS; 3008 if (x & UHCI_PORTSC_CSC ) 3009 change |= UPS_C_CONNECT_STATUS; 3010 if (x & UHCI_PORTSC_PE ) 3011 status |= UPS_PORT_ENABLED; 3012 if (x & UHCI_PORTSC_POEDC) 3013 change |= UPS_C_PORT_ENABLED; 3014 if (x & UHCI_PORTSC_OCI ) 3015 status |= UPS_OVERCURRENT_INDICATOR; 3016 if (x & UHCI_PORTSC_OCIC ) 3017 change |= UPS_C_OVERCURRENT_INDICATOR; 3018 if (x & UHCI_PORTSC_SUSP ) 3019 status |= UPS_SUSPEND; 3020 if (x & UHCI_PORTSC_LSDA ) 3021 status |= UPS_LOW_SPEED; 3022 status |= UPS_PORT_POWER; 3023 if (sc->sc_isreset) 3024 change |= UPS_C_PORT_RESET; 3025 USETW(ps.wPortStatus, status); 3026 USETW(ps.wPortChange, change); 3027 l = min(len, sizeof ps); 3028 memcpy(buf, &ps, l); 3029 totlen = l; 3030 break; 3031 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3032 err = USBD_IOERROR; 3033 goto ret; 3034 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3035 break; 3036 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3037 if (index == 1) 3038 port = UHCI_PORTSC1; 3039 else if (index == 2) 3040 port = UHCI_PORTSC2; 3041 else { 3042 err = USBD_IOERROR; 3043 goto ret; 3044 } 3045 switch(value) { 3046 case UHF_PORT_ENABLE: 3047 x = UREAD2(sc, port); 3048 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3049 break; 3050 case UHF_PORT_SUSPEND: 3051 x = UREAD2(sc, port); 3052 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3053 break; 3054 case UHF_PORT_RESET: 3055 x = UREAD2(sc, port); 3056 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3057 usb_delay_ms(&sc->sc_bus, 10); 3058 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3059 delay(100); 3060 x = UREAD2(sc, port); 3061 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3062 delay(100); 3063 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3064 index, UREAD2(sc, port))); 3065 sc->sc_isreset = 1; 3066 break; 3067 case UHF_C_PORT_CONNECTION: 3068 case UHF_C_PORT_ENABLE: 3069 case UHF_C_PORT_OVER_CURRENT: 3070 case UHF_PORT_CONNECTION: 3071 case UHF_PORT_OVER_CURRENT: 3072 case UHF_PORT_POWER: 3073 case UHF_PORT_LOW_SPEED: 3074 case UHF_C_PORT_SUSPEND: 3075 case UHF_C_PORT_RESET: 3076 default: 3077 err = USBD_IOERROR; 3078 goto ret; 3079 } 3080 break; 3081 default: 3082 err = USBD_IOERROR; 3083 goto ret; 3084 } 3085 xfer->actlen = totlen; 3086 err = USBD_NORMAL_COMPLETION; 3087 ret: 3088 xfer->status = err; 3089 xfer->hcpriv = 0; 3090 s = splusb(); 3091 usb_transfer_complete(xfer); 3092 splx(s); 3093 return (USBD_IN_PROGRESS); 3094 } 3095 3096 /* Abort a root control request. */ 3097 void 3098 uhci_root_ctrl_abort(xfer) 3099 usbd_xfer_handle xfer; 3100 { 3101 /* Nothing to do, all transfers are synchronous. */ 3102 } 3103 3104 /* Close the root pipe. */ 3105 void 3106 uhci_root_ctrl_close(pipe) 3107 usbd_pipe_handle pipe; 3108 { 3109 DPRINTF(("uhci_root_ctrl_close\n")); 3110 } 3111 3112 /* Abort a root interrupt request. */ 3113 void 3114 uhci_root_intr_abort(xfer) 3115 usbd_xfer_handle xfer; 3116 { 3117 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3118 3119 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 3120 sc->sc_has_timo = NULL; 3121 3122 if (xfer->pipe->intrxfer == xfer) { 3123 DPRINTF(("uhci_root_intr_abort: remove\n")); 3124 xfer->pipe->intrxfer = 0; 3125 } 3126 xfer->status = USBD_CANCELLED; 3127 usb_transfer_complete(xfer); 3128 } 3129 3130 usbd_status 3131 uhci_root_intr_transfer(xfer) 3132 usbd_xfer_handle xfer; 3133 { 3134 usbd_status err; 3135 3136 /* Insert last in queue. */ 3137 err = usb_insert_transfer(xfer); 3138 if (err) 3139 return (err); 3140 3141 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3142 * start first 3143 */ 3144 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3145 } 3146 3147 /* Start a transfer on the root interrupt pipe */ 3148 usbd_status 3149 uhci_root_intr_start(xfer) 3150 usbd_xfer_handle xfer; 3151 { 3152 usbd_pipe_handle pipe = xfer->pipe; 3153 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3154 3155 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3156 xfer, xfer->length, xfer->flags)); 3157 3158 if (sc->sc_dying) 3159 return (USBD_IOERROR); 3160 3161 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3162 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3163 sc->sc_has_timo = xfer; 3164 return (USBD_IN_PROGRESS); 3165 } 3166 3167 /* Close the root interrupt pipe. */ 3168 void 3169 uhci_root_intr_close(pipe) 3170 usbd_pipe_handle pipe; 3171 { 3172 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3173 3174 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3175 sc->sc_has_timo = NULL; 3176 DPRINTF(("uhci_root_intr_close\n")); 3177 } 3178
Indexes created Tue Sep 30 17:09:57 GMT 2025