uhci.c revision 1.91
1 /* $NetBSD: uhci.c,v 1.91 2000/03/24 22:03:31 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 46 * USB spec: http://www.usb.org/developers/data/usb11.pdf 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 #if defined(__FreeBSD__) 82 #include <machine/clock.h> 83 84 #define delay(d) DELAY(d) 85 #endif 86 87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 88 89 #if defined(__OpenBSD__) 90 struct cfdriver uhci_cd = { 91 NULL, "uhci", DV_DULL 92 }; 93 #endif 94 95 #ifdef UHCI_DEBUG 96 #define DPRINTF(x) if (uhcidebug) printf x 97 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 98 int uhcidebug = 0; 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 /* 105 * The UHCI controller is little endian, so on big endian machines 106 * the data strored in memory needs to be swapped. 107 */ 108 #if 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_uncallout(sc->sc_has_timo->timo_handle, 594 uhci_timo, sc->sc_has_timo); 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_callout(sc->sc_has_timo->timo_handle, sc->sc_ival, 632 uhci_timo, sc->sc_has_timo); 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_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 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 usb_callout_init(ii->timeout_handle); 857 858 return ii; 859 } 860 861 void 862 uhci_free_intr_info(ii) 863 uhci_intr_info_t *ii; 864 { 865 #if defined(__NetBSD__) && defined(DIAGNOSTIC) 866 if (callout_pending(&ii->timeout_handle)) 867 panic("uhci_free_intr_info: pending callout"); 868 #endif 869 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 870 } 871 872 /* Add control QH, called at splusb(). */ 873 void 874 uhci_add_ctrl(sc, sqh) 875 uhci_softc_t *sc; 876 uhci_soft_qh_t *sqh; 877 { 878 uhci_soft_qh_t *eqh; 879 880 SPLUSBCHECK; 881 882 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 883 eqh = sc->sc_ctl_end; 884 sqh->hlink = eqh->hlink; 885 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 886 eqh->hlink = sqh; 887 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 888 sc->sc_ctl_end = sqh; 889 } 890 891 /* Remove control QH, called at splusb(). */ 892 void 893 uhci_remove_ctrl(sc, sqh) 894 uhci_softc_t *sc; 895 uhci_soft_qh_t *sqh; 896 { 897 uhci_soft_qh_t *pqh; 898 899 SPLUSBCHECK; 900 901 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 902 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 903 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 904 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 905 printf("uhci_remove_ctrl: QH not found\n"); 906 return; 907 } 908 #else 909 ; 910 #endif 911 pqh->hlink = sqh->hlink; 912 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 913 if (sc->sc_ctl_end == sqh) 914 sc->sc_ctl_end = pqh; 915 } 916 917 /* Add bulk QH, called at splusb(). */ 918 void 919 uhci_add_bulk(sc, sqh) 920 uhci_softc_t *sc; 921 uhci_soft_qh_t *sqh; 922 { 923 uhci_soft_qh_t *eqh; 924 925 SPLUSBCHECK; 926 927 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 928 eqh = sc->sc_bulk_end; 929 sqh->hlink = eqh->hlink; 930 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 931 eqh->hlink = sqh; 932 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 933 sc->sc_bulk_end = sqh; 934 } 935 936 /* Remove bulk QH, called at splusb(). */ 937 void 938 uhci_remove_bulk(sc, sqh) 939 uhci_softc_t *sc; 940 uhci_soft_qh_t *sqh; 941 { 942 uhci_soft_qh_t *pqh; 943 944 SPLUSBCHECK; 945 946 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 947 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 948 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 949 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 950 printf("uhci_remove_bulk: QH not found\n"); 951 return; 952 } 953 #else 954 ; 955 #endif 956 pqh->hlink = sqh->hlink; 957 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 958 if (sc->sc_bulk_end == sqh) 959 sc->sc_bulk_end = pqh; 960 } 961 962 int 963 uhci_intr(arg) 964 void *arg; 965 { 966 uhci_softc_t *sc = arg; 967 int status; 968 int ack; 969 970 #ifdef UHCI_DEBUG 971 if (uhcidebug > 15) { 972 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 973 uhci_dumpregs(sc); 974 } 975 #endif 976 977 status = UREAD2(sc, UHCI_STS); 978 if (status == 0) /* The interrupt was not for us. */ 979 return (0); 980 981 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 982 if (sc->sc_suspend != PWR_RESUME) 983 printf("uhci_intr: suspended sts=0x%x\n", status); 984 #endif 985 986 ack = 0; 987 if (status & UHCI_STS_USBINT) 988 ack |= UHCI_STS_USBINT; 989 if (status & UHCI_STS_USBEI) 990 ack |= UHCI_STS_USBEI; 991 if (status & UHCI_STS_RD) { 992 ack |= UHCI_STS_RD; 993 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 994 } 995 if (status & UHCI_STS_HSE) { 996 ack |= UHCI_STS_HSE; 997 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 998 } 999 if (status & UHCI_STS_HCPE) { 1000 ack |= UHCI_STS_HCPE; 1001 printf("%s: host controller process error\n", 1002 USBDEVNAME(sc->sc_bus.bdev)); 1003 } 1004 if (status & UHCI_STS_HCH) { 1005 /* no acknowledge needed */ 1006 printf("%s: host controller halted\n", 1007 USBDEVNAME(sc->sc_bus.bdev)); 1008 sc->sc_dying = 1; 1009 } 1010 1011 if (ack) /* acknowledge the ints */ 1012 UWRITE2(sc, UHCI_STS, ack); 1013 else /* nothing to acknowledge */ 1014 return (0); 1015 1016 sc->sc_bus.no_intrs++; 1017 usb_schedsoftintr(&sc->sc_bus); 1018 1019 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1020 1021 return (1); 1022 } 1023 1024 void 1025 uhci_softintr(bus) 1026 struct usbd_bus *bus; 1027 { 1028 uhci_softc_t *sc = (uhci_softc_t *)bus; 1029 uhci_intr_info_t *ii; 1030 1031 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1032 1033 sc->sc_bus.intr_context++; 1034 1035 /* 1036 * Interrupts on UHCI really suck. When the host controller 1037 * interrupts because a transfer is completed there is no 1038 * way of knowing which transfer it was. You can scan down 1039 * the TDs and QHs of the previous frame to limit the search, 1040 * but that assumes that the interrupt was not delayed by more 1041 * than 1 ms, which may not always be true (e.g. after debug 1042 * output on a slow console). 1043 * We scan all interrupt descriptors to see if any have 1044 * completed. 1045 */ 1046 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1047 uhci_check_intr(sc, ii); 1048 1049 sc->sc_bus.intr_context--; 1050 } 1051 1052 /* Check for an interrupt. */ 1053 void 1054 uhci_check_intr(sc, ii) 1055 uhci_softc_t *sc; 1056 uhci_intr_info_t *ii; 1057 { 1058 uhci_soft_td_t *std, *lstd; 1059 u_int32_t status; 1060 1061 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1062 #ifdef DIAGNOSTIC 1063 if (ii == NULL) { 1064 printf("uhci_check_intr: no ii? %p\n", ii); 1065 return; 1066 } 1067 #endif 1068 if (ii->stdstart == NULL) 1069 return; 1070 lstd = ii->stdend; 1071 #ifdef DIAGNOSTIC 1072 if (lstd == NULL) { 1073 printf("uhci_check_intr: std==0\n"); 1074 return; 1075 } 1076 #endif 1077 /* 1078 * If the last TD is still active we need to check whether there 1079 * is a an error somewhere in the middle, or whether there was a 1080 * short packet (SPD and not ACTIVE). 1081 */ 1082 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1083 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 1084 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1085 status = le32toh(std->td.td_status); 1086 /* If there's an active TD the xfer isn't done. */ 1087 if (status & UHCI_TD_ACTIVE) 1088 break; 1089 /* Any kind of error makes the xfer done. */ 1090 if (status & UHCI_TD_STALLED) 1091 goto done; 1092 /* We want short packets, and it is short: it's done */ 1093 if ((status & UHCI_TD_SPD) && 1094 UHCI_TD_GET_ACTLEN(status) < 1095 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1096 goto done; 1097 } 1098 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1099 ii, ii->stdstart)); 1100 return; 1101 } 1102 done: 1103 DPRINTFN(15, ("uhci_check_intr: ii=%p done\n", ii)); 1104 usb_uncallout(ii->timeout_handle, uhci_timeout, ii); 1105 uhci_idone(ii); 1106 } 1107 1108 /* Called at splusb() */ 1109 void 1110 uhci_idone(ii) 1111 uhci_intr_info_t *ii; 1112 { 1113 usbd_xfer_handle xfer = ii->xfer; 1114 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1115 uhci_soft_td_t *std; 1116 u_int32_t status = 0, nstatus; 1117 int actlen; 1118 1119 #ifdef DIAGNOSTIC 1120 { 1121 int s = splhigh(); 1122 if (ii->isdone) { 1123 splx(s); 1124 printf("uhci_idone: ii=%p is done!\n", ii); 1125 return; 1126 } 1127 ii->isdone = 1; 1128 splx(s); 1129 } 1130 #endif 1131 1132 if (xfer->status == USBD_CANCELLED || 1133 xfer->status == USBD_TIMEOUT) { 1134 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1135 return; 1136 } 1137 1138 if (xfer->nframes != 0) { 1139 /* Isoc transfer, do things differently. */ 1140 uhci_soft_td_t **stds = upipe->u.iso.stds; 1141 int i, n, nframes; 1142 1143 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1144 1145 nframes = xfer->nframes; 1146 actlen = 0; 1147 n = xfer->hcprivint; 1148 for (i = 0; i < nframes; i++) { 1149 std = stds[n]; 1150 #ifdef UHCI_DEBUG 1151 if (uhcidebug > 5) { 1152 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1153 uhci_dump_td(std); 1154 } 1155 #endif 1156 if (++n >= UHCI_VFRAMELIST_COUNT) 1157 n = 0; 1158 status = le32toh(std->td.td_status); 1159 actlen += UHCI_TD_GET_ACTLEN(status); 1160 } 1161 upipe->u.iso.inuse -= nframes; 1162 xfer->actlen = actlen; 1163 xfer->status = USBD_NORMAL_COMPLETION; 1164 xfer->hcpriv = ii; 1165 usb_transfer_complete(xfer); 1166 return; 1167 } 1168 1169 #ifdef UHCI_DEBUG 1170 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1171 ii, xfer, upipe)); 1172 if (uhcidebug > 10) 1173 uhci_dump_tds(ii->stdstart); 1174 #endif 1175 1176 /* The transfer is done, compute actual length and status. */ 1177 actlen = 0; 1178 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1179 nstatus = le32toh(std->td.td_status); 1180 if (nstatus & UHCI_TD_ACTIVE) 1181 break; 1182 1183 status = nstatus; 1184 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1185 UHCI_TD_PID_SETUP) 1186 actlen += UHCI_TD_GET_ACTLEN(status); 1187 } 1188 /* If there are left over TDs we need to update the toggle. */ 1189 if (std != NULL) 1190 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1191 1192 status &= UHCI_TD_ERROR; 1193 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1194 actlen, status)); 1195 xfer->actlen = actlen; 1196 if (status != 0) { 1197 DPRINTFN((status == UHCI_TD_STALLED)*10, 1198 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1199 "status 0x%b\n", 1200 xfer->pipe->device->address, 1201 xfer->pipe->endpoint->edesc->bEndpointAddress, 1202 (int)status, 1203 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1204 "STALLED\30ACTIVE")); 1205 if (status == UHCI_TD_STALLED) 1206 xfer->status = USBD_STALLED; 1207 else 1208 xfer->status = USBD_IOERROR; /* more info XXX */ 1209 } else { 1210 xfer->status = USBD_NORMAL_COMPLETION; 1211 } 1212 xfer->hcpriv = ii; 1213 usb_transfer_complete(xfer); 1214 } 1215 1216 /* 1217 * Called when a request does not complete. 1218 */ 1219 void 1220 uhci_timeout(addr) 1221 void *addr; 1222 { 1223 uhci_intr_info_t *ii = addr; 1224 1225 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1226 1227 #ifdef UHCI_DEBUG 1228 if (uhcidebug > 10) 1229 uhci_dump_tds(ii->stdstart); 1230 #endif 1231 1232 ii->xfer->device->bus->intr_context++; 1233 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1234 ii->xfer->device->bus->intr_context--; 1235 } 1236 1237 /* 1238 * Wait here until controller claims to have an interrupt. 1239 * Then call uhci_intr and return. Use timeout to avoid waiting 1240 * too long. 1241 * Only used during boot when interrupts are not enabled yet. 1242 */ 1243 void 1244 uhci_waitintr(sc, xfer) 1245 uhci_softc_t *sc; 1246 usbd_xfer_handle xfer; 1247 { 1248 int timo = xfer->timeout; 1249 uhci_intr_info_t *ii; 1250 1251 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1252 1253 xfer->status = USBD_IN_PROGRESS; 1254 for (; timo >= 0; timo--) { 1255 usb_delay_ms(&sc->sc_bus, 1); 1256 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1257 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1258 uhci_intr(sc); 1259 if (xfer->status != USBD_IN_PROGRESS) 1260 return; 1261 } 1262 } 1263 1264 /* Timeout */ 1265 DPRINTF(("uhci_waitintr: timeout\n")); 1266 for (ii = LIST_FIRST(&sc->sc_intrhead); 1267 ii != NULL && ii->xfer != xfer; 1268 ii = LIST_NEXT(ii, list)) 1269 ; 1270 #ifdef DIAGNOSTIC 1271 if (ii == NULL) 1272 panic("uhci_waitintr: lost intr_info\n"); 1273 #endif 1274 uhci_idone(ii); 1275 } 1276 1277 void 1278 uhci_poll(bus) 1279 struct usbd_bus *bus; 1280 { 1281 uhci_softc_t *sc = (uhci_softc_t *)bus; 1282 1283 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1284 uhci_intr(sc); 1285 } 1286 1287 #if 0 1288 void 1289 uhci_reset(p) 1290 void *p; 1291 { 1292 uhci_softc_t *sc = p; 1293 int n; 1294 1295 UHCICMD(sc, UHCI_CMD_HCRESET); 1296 /* The reset bit goes low when the controller is done. */ 1297 for (n = 0; n < UHCI_RESET_TIMEOUT && 1298 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1299 delay(100); 1300 if (n >= UHCI_RESET_TIMEOUT) 1301 printf("%s: controller did not reset\n", 1302 USBDEVNAME(sc->sc_bus.bdev)); 1303 } 1304 #endif 1305 1306 usbd_status 1307 uhci_run(sc, run) 1308 uhci_softc_t *sc; 1309 int run; 1310 { 1311 int s, n, running; 1312 u_int16_t cmd; 1313 1314 run = run != 0; 1315 s = splusb(); 1316 DPRINTF(("uhci_run: setting run=%d\n", run)); 1317 cmd = UREAD2(sc, UHCI_CMD); 1318 if (run) 1319 cmd |= UHCI_CMD_RS; 1320 else 1321 cmd &= ~UHCI_CMD_RS; 1322 UHCICMD(sc, cmd); 1323 for(n = 0; n < 10; n++) { 1324 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1325 /* return when we've entered the state we want */ 1326 if (run == running) { 1327 splx(s); 1328 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1329 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1330 return (USBD_NORMAL_COMPLETION); 1331 } 1332 usb_delay_ms(&sc->sc_bus, 1); 1333 } 1334 splx(s); 1335 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1336 run ? "start" : "stop"); 1337 return (USBD_IOERROR); 1338 } 1339 1340 /* 1341 * Memory management routines. 1342 * uhci_alloc_std allocates TDs 1343 * uhci_alloc_sqh allocates QHs 1344 * These two routines do their own free list management, 1345 * partly for speed, partly because allocating DMAable memory 1346 * has page size granularaity so much memory would be wasted if 1347 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1348 */ 1349 1350 uhci_soft_td_t * 1351 uhci_alloc_std(sc) 1352 uhci_softc_t *sc; 1353 { 1354 uhci_soft_td_t *std; 1355 usbd_status err; 1356 int i, offs; 1357 usb_dma_t dma; 1358 1359 if (sc->sc_freetds == NULL) { 1360 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1361 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1362 UHCI_TD_ALIGN, &dma); 1363 if (err) 1364 return (0); 1365 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1366 offs = i * UHCI_STD_SIZE; 1367 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1368 std->physaddr = DMAADDR(&dma) + offs; 1369 std->link.std = sc->sc_freetds; 1370 sc->sc_freetds = std; 1371 } 1372 } 1373 std = sc->sc_freetds; 1374 sc->sc_freetds = std->link.std; 1375 memset(&std->td, 0, sizeof(uhci_td_t)); 1376 return std; 1377 } 1378 1379 void 1380 uhci_free_std(sc, std) 1381 uhci_softc_t *sc; 1382 uhci_soft_td_t *std; 1383 { 1384 #ifdef DIAGNOSTIC 1385 #define TD_IS_FREE 0x12345678 1386 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1387 printf("uhci_free_std: freeing free TD %p\n", std); 1388 return; 1389 } 1390 std->td.td_token = htole32(TD_IS_FREE); 1391 #endif 1392 std->link.std = sc->sc_freetds; 1393 sc->sc_freetds = std; 1394 } 1395 1396 uhci_soft_qh_t * 1397 uhci_alloc_sqh(sc) 1398 uhci_softc_t *sc; 1399 { 1400 uhci_soft_qh_t *sqh; 1401 usbd_status err; 1402 int i, offs; 1403 usb_dma_t dma; 1404 1405 if (sc->sc_freeqhs == NULL) { 1406 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1407 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1408 UHCI_QH_ALIGN, &dma); 1409 if (err) 1410 return (0); 1411 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1412 offs = i * UHCI_SQH_SIZE; 1413 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1414 sqh->physaddr = DMAADDR(&dma) + offs; 1415 sqh->hlink = sc->sc_freeqhs; 1416 sc->sc_freeqhs = sqh; 1417 } 1418 } 1419 sqh = sc->sc_freeqhs; 1420 sc->sc_freeqhs = sqh->hlink; 1421 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1422 return (sqh); 1423 } 1424 1425 void 1426 uhci_free_sqh(sc, sqh) 1427 uhci_softc_t *sc; 1428 uhci_soft_qh_t *sqh; 1429 { 1430 sqh->hlink = sc->sc_freeqhs; 1431 sc->sc_freeqhs = sqh; 1432 } 1433 1434 #if 0 1435 /* 1436 * Enter a list of transfers onto a control queue. 1437 * Called at splusb() 1438 */ 1439 void 1440 uhci_enter_ctl_q(sc, sqh, ii) 1441 uhci_softc_t *sc; 1442 uhci_soft_qh_t *sqh; 1443 uhci_intr_info_t *ii; 1444 { 1445 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1446 1447 } 1448 #endif 1449 1450 void 1451 uhci_free_std_chain(sc, std, stdend) 1452 uhci_softc_t *sc; 1453 uhci_soft_td_t *std; 1454 uhci_soft_td_t *stdend; 1455 { 1456 uhci_soft_td_t *p; 1457 1458 for (; std != stdend; std = p) { 1459 p = std->link.std; 1460 uhci_free_std(sc, std); 1461 } 1462 } 1463 1464 usbd_status 1465 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1466 struct uhci_pipe *upipe; 1467 uhci_softc_t *sc; 1468 int len, rd; 1469 u_int16_t flags; 1470 usb_dma_t *dma; 1471 uhci_soft_td_t **sp, **ep; 1472 { 1473 uhci_soft_td_t *p, *lastp; 1474 uhci_physaddr_t lastlink; 1475 int i, ntd, l, tog, maxp; 1476 u_int32_t status; 1477 int addr = upipe->pipe.device->address; 1478 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1479 1480 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1481 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1482 upipe->pipe.device->lowspeed, flags)); 1483 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1484 if (maxp == 0) { 1485 printf("uhci_alloc_std_chain: maxp=0\n"); 1486 return (USBD_INVAL); 1487 } 1488 ntd = (len + maxp - 1) / maxp; 1489 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1490 ntd++; 1491 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1492 if (ntd == 0) { 1493 *sp = *ep = 0; 1494 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1495 return (USBD_NORMAL_COMPLETION); 1496 } 1497 tog = upipe->nexttoggle; 1498 if (ntd % 2 == 0) 1499 tog ^= 1; 1500 upipe->nexttoggle = tog ^ 1; 1501 lastp = 0; 1502 lastlink = UHCI_PTR_T; 1503 ntd--; 1504 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1505 if (upipe->pipe.device->lowspeed) 1506 status |= UHCI_TD_LS; 1507 if (flags & USBD_SHORT_XFER_OK) 1508 status |= UHCI_TD_SPD; 1509 for (i = ntd; i >= 0; i--) { 1510 p = uhci_alloc_std(sc); 1511 if (p == NULL) { 1512 uhci_free_std_chain(sc, lastp, 0); 1513 return (USBD_NOMEM); 1514 } 1515 p->link.std = lastp; 1516 if (lastlink == UHCI_PTR_T) 1517 p->td.td_link = htole32(lastlink); 1518 else 1519 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1520 lastp = p; 1521 lastlink = p->physaddr; 1522 p->td.td_status = htole32(status); 1523 if (i == ntd) { 1524 /* last TD */ 1525 l = len % maxp; 1526 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1527 l = maxp; 1528 *ep = p; 1529 } else 1530 l = maxp; 1531 p->td.td_token = 1532 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1533 UHCI_TD_OUT(l, endpt, addr, tog)); 1534 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1535 tog ^= 1; 1536 } 1537 *sp = lastp; 1538 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1539 upipe->nexttoggle)); 1540 return (USBD_NORMAL_COMPLETION); 1541 } 1542 1543 void 1544 uhci_device_clear_toggle(pipe) 1545 usbd_pipe_handle pipe; 1546 { 1547 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1548 upipe->nexttoggle = 0; 1549 } 1550 1551 void 1552 uhci_noop(pipe) 1553 usbd_pipe_handle pipe; 1554 { 1555 } 1556 1557 usbd_status 1558 uhci_device_bulk_transfer(xfer) 1559 usbd_xfer_handle xfer; 1560 { 1561 usbd_status err; 1562 1563 /* Insert last in queue. */ 1564 err = usb_insert_transfer(xfer); 1565 if (err) 1566 return (err); 1567 1568 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1569 * start first 1570 */ 1571 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1572 } 1573 1574 usbd_status 1575 uhci_device_bulk_start(xfer) 1576 usbd_xfer_handle xfer; 1577 { 1578 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1579 usbd_device_handle dev = upipe->pipe.device; 1580 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1581 uhci_intr_info_t *ii = upipe->iinfo; 1582 uhci_soft_td_t *data, *dataend; 1583 uhci_soft_qh_t *sqh; 1584 usbd_status err; 1585 int len, isread, endpt; 1586 int s; 1587 1588 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1589 xfer, xfer->length, xfer->flags)); 1590 1591 if (sc->sc_dying) 1592 return (USBD_IOERROR); 1593 1594 #ifdef DIAGNOSTIC 1595 if (xfer->rqflags & URQ_REQUEST) 1596 panic("uhci_device_bulk_transfer: a request\n"); 1597 #endif 1598 1599 len = xfer->length; 1600 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1601 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1602 sqh = upipe->u.bulk.sqh; 1603 1604 upipe->u.bulk.isread = isread; 1605 upipe->u.bulk.length = len; 1606 1607 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1608 &xfer->dmabuf, &data, &dataend); 1609 if (err) 1610 return (err); 1611 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1612 1613 #ifdef UHCI_DEBUG 1614 if (uhcidebug > 8) { 1615 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1616 uhci_dump_tds(data); 1617 } 1618 #endif 1619 1620 /* Set up interrupt info. */ 1621 ii->xfer = xfer; 1622 ii->stdstart = data; 1623 ii->stdend = dataend; 1624 usb_callout_init(ii->timeout_handle); 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_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 1642 uhci_timeout, ii); 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_uncallout(ii->timeout_handle, uhci_timeout, ii); 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 usb_callout(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 usb_callout_init(ii->timeout_handle); 1840 #ifdef DIAGNOSTIC 1841 if (!ii->isdone) { 1842 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1843 } 1844 ii->isdone = 0; 1845 #endif 1846 1847 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1848 upipe->u.intr.qhs[0])); 1849 for (i = 0; i < upipe->u.intr.npoll; i++) { 1850 sqh = upipe->u.intr.qhs[i]; 1851 sqh->elink = data; 1852 sqh->qh.qh_elink = htole32(data->physaddr); 1853 } 1854 splx(s); 1855 1856 #ifdef UHCI_DEBUG 1857 if (uhcidebug > 10) { 1858 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1859 uhci_dump_tds(data); 1860 uhci_dump_qh(upipe->u.intr.qhs[0]); 1861 } 1862 #endif 1863 1864 return (USBD_IN_PROGRESS); 1865 } 1866 1867 /* Abort a device control request. */ 1868 void 1869 uhci_device_ctrl_abort(xfer) 1870 usbd_xfer_handle xfer; 1871 { 1872 DPRINTF(("uhci_device_ctrl_abort:\n")); 1873 uhci_abort_xfer(xfer, USBD_CANCELLED); 1874 } 1875 1876 /* Close a device control pipe. */ 1877 void 1878 uhci_device_ctrl_close(pipe) 1879 usbd_pipe_handle pipe; 1880 { 1881 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1882 1883 uhci_free_intr_info(upipe->iinfo); 1884 /* XXX free other resources? */ 1885 } 1886 1887 /* Abort a device interrupt request. */ 1888 void 1889 uhci_device_intr_abort(xfer) 1890 usbd_xfer_handle xfer; 1891 { 1892 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1893 if (xfer->pipe->intrxfer == xfer) { 1894 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1895 xfer->pipe->intrxfer = 0; 1896 } 1897 uhci_abort_xfer(xfer, USBD_CANCELLED); 1898 } 1899 1900 /* Close a device interrupt pipe. */ 1901 void 1902 uhci_device_intr_close(pipe) 1903 usbd_pipe_handle pipe; 1904 { 1905 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1906 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1907 int i, s, npoll; 1908 1909 upipe->iinfo->stdstart = 0; /* inactive */ 1910 1911 /* Unlink descriptors from controller data structures. */ 1912 npoll = upipe->u.intr.npoll; 1913 uhci_lock_frames(sc); 1914 for (i = 0; i < npoll; i++) 1915 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1916 upipe->u.intr.qhs[i]); 1917 uhci_unlock_frames(sc); 1918 1919 /* 1920 * We now have to wait for any activity on the physical 1921 * descriptors to stop. 1922 */ 1923 usb_delay_ms(&sc->sc_bus, 2); 1924 1925 for(i = 0; i < npoll; i++) 1926 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1927 free(upipe->u.intr.qhs, M_USBHC); 1928 1929 s = splusb(); 1930 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1931 splx(s); 1932 uhci_free_intr_info(upipe->iinfo); 1933 1934 /* XXX free other resources */ 1935 } 1936 1937 usbd_status 1938 uhci_device_request(xfer) 1939 usbd_xfer_handle xfer; 1940 { 1941 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1942 usb_device_request_t *req = &xfer->request; 1943 usbd_device_handle dev = upipe->pipe.device; 1944 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1945 int addr = dev->address; 1946 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1947 uhci_intr_info_t *ii = upipe->iinfo; 1948 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1949 uhci_soft_qh_t *sqh; 1950 int len; 1951 u_int32_t ls; 1952 usbd_status err; 1953 int isread; 1954 int s; 1955 1956 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1957 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1958 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1959 UGETW(req->wIndex), UGETW(req->wLength), 1960 addr, endpt)); 1961 1962 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1963 isread = req->bmRequestType & UT_READ; 1964 len = UGETW(req->wLength); 1965 1966 setup = upipe->u.ctl.setup; 1967 stat = upipe->u.ctl.stat; 1968 sqh = upipe->u.ctl.sqh; 1969 1970 /* Set up data transaction */ 1971 if (len != 0) { 1972 upipe->nexttoggle = 1; 1973 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1974 &xfer->dmabuf, &data, &dataend); 1975 if (err) 1976 return (err); 1977 next = data; 1978 dataend->link.std = stat; 1979 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 1980 } else { 1981 next = stat; 1982 } 1983 upipe->u.ctl.length = len; 1984 1985 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1986 1987 setup->link.std = next; 1988 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 1989 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1990 UHCI_TD_ACTIVE); 1991 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1992 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 1993 1994 stat->link.std = 0; 1995 stat->td.td_link = htole32(UHCI_PTR_T); 1996 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 1997 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1998 stat->td.td_token = 1999 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2000 UHCI_TD_IN (0, endpt, addr, 1)); 2001 stat->td.td_buffer = htole32(0); 2002 2003 #ifdef UHCI_DEBUG 2004 if (uhcidebug > 10) { 2005 DPRINTF(("uhci_device_request: before transfer\n")); 2006 uhci_dump_tds(setup); 2007 } 2008 #endif 2009 2010 /* Set up interrupt info. */ 2011 ii->xfer = xfer; 2012 ii->stdstart = setup; 2013 ii->stdend = stat; 2014 usb_callout_init(ii->timeout_handle); 2015 #ifdef DIAGNOSTIC 2016 if (!ii->isdone) { 2017 printf("uhci_device_request: not done, ii=%p\n", ii); 2018 } 2019 ii->isdone = 0; 2020 #endif 2021 2022 sqh->elink = setup; 2023 sqh->qh.qh_elink = htole32(setup->physaddr); 2024 sqh->intr_info = ii; 2025 2026 s = splusb(); 2027 uhci_add_ctrl(sc, sqh); 2028 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2029 #ifdef UHCI_DEBUG 2030 if (uhcidebug > 12) { 2031 uhci_soft_td_t *std; 2032 uhci_soft_qh_t *xqh; 2033 uhci_soft_qh_t *sxqh; 2034 int maxqh = 0; 2035 uhci_physaddr_t link; 2036 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2037 for (std = sc->sc_vframes[0].htd, link = 0; 2038 (link & UHCI_PTR_Q) == 0; 2039 std = std->link.std) { 2040 link = le32toh(std->td.td_link); 2041 uhci_dump_td(std); 2042 } 2043 sxqh = (uhci_soft_qh_t *)std; 2044 uhci_dump_qh(sxqh); 2045 for (xqh = sxqh; 2046 xqh != NULL; 2047 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2048 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2049 uhci_dump_qh(xqh); 2050 } 2051 DPRINTF(("Enqueued QH:\n")); 2052 uhci_dump_qh(sqh); 2053 uhci_dump_tds(sqh->elink); 2054 } 2055 #endif 2056 if (xfer->timeout && !sc->sc_bus.use_polling) { 2057 usb_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 2058 uhci_timeout, ii); 2059 } 2060 splx(s); 2061 2062 return (USBD_NORMAL_COMPLETION); 2063 } 2064 2065 usbd_status 2066 uhci_device_isoc_transfer(xfer) 2067 usbd_xfer_handle xfer; 2068 { 2069 usbd_status err; 2070 2071 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2072 2073 /* Put it on our queue, */ 2074 err = usb_insert_transfer(xfer); 2075 2076 /* bail out on error, */ 2077 if (err && err != USBD_IN_PROGRESS) 2078 return (err); 2079 2080 /* XXX should check inuse here */ 2081 2082 /* insert into schedule, */ 2083 uhci_device_isoc_enter(xfer); 2084 2085 /* and put on interrupt list if the pipe wasn't running */ 2086 if (!err) 2087 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2088 2089 return (err); 2090 } 2091 2092 void 2093 uhci_device_isoc_enter(xfer) 2094 usbd_xfer_handle xfer; 2095 { 2096 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2097 usbd_device_handle dev = upipe->pipe.device; 2098 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2099 struct iso *iso = &upipe->u.iso; 2100 uhci_soft_td_t *std; 2101 u_int32_t buf, len, status; 2102 int s, i, next, nframes; 2103 2104 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2105 "nframes=%d\n", 2106 iso->inuse, iso->next, xfer, xfer->nframes)); 2107 2108 if (sc->sc_dying) 2109 return; 2110 2111 if (xfer->status == USBD_IN_PROGRESS) { 2112 /* This request has already been entered into the frame list */ 2113 /* XXX */ 2114 } 2115 2116 #ifdef DIAGNOSTIC 2117 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2118 printf("uhci_device_isoc_enter: overflow!\n"); 2119 #endif 2120 2121 next = iso->next; 2122 if (next == -1) { 2123 /* Not in use yet, schedule it a few frames ahead. */ 2124 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2125 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2126 } 2127 2128 xfer->status = USBD_IN_PROGRESS; 2129 xfer->hcprivint = next; 2130 2131 buf = DMAADDR(&xfer->dmabuf); 2132 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2133 UHCI_TD_ACTIVE | 2134 UHCI_TD_IOS); 2135 nframes = xfer->nframes; 2136 s = splusb(); 2137 for (i = 0; i < nframes; i++) { 2138 std = iso->stds[next]; 2139 if (++next >= UHCI_VFRAMELIST_COUNT) 2140 next = 0; 2141 len = xfer->frlengths[i]; 2142 std->td.td_buffer = htole32(buf); 2143 if (i == nframes - 1) 2144 status |= UHCI_TD_IOC; 2145 std->td.td_status = htole32(status); 2146 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2147 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2148 #ifdef UHCI_DEBUG 2149 if (uhcidebug > 5) { 2150 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2151 uhci_dump_td(std); 2152 } 2153 #endif 2154 buf += len; 2155 } 2156 iso->next = next; 2157 iso->inuse += xfer->nframes; 2158 2159 splx(s); 2160 } 2161 2162 usbd_status 2163 uhci_device_isoc_start(xfer) 2164 usbd_xfer_handle xfer; 2165 { 2166 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2167 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2168 uhci_intr_info_t *ii = upipe->iinfo; 2169 uhci_soft_td_t *end; 2170 int s, i; 2171 2172 if (sc->sc_dying) 2173 return (USBD_IOERROR); 2174 2175 #ifdef DIAGNOSTIC 2176 if (xfer->status != USBD_IN_PROGRESS) 2177 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2178 #endif 2179 2180 /* Find the last TD */ 2181 i = xfer->hcprivint + xfer->nframes; 2182 if (i >= UHCI_VFRAMELIST_COUNT) 2183 i -= UHCI_VFRAMELIST_COUNT; 2184 end = upipe->u.iso.stds[i]; 2185 2186 s = splusb(); 2187 2188 /* Set up interrupt info. */ 2189 ii->xfer = xfer; 2190 ii->stdstart = end; 2191 ii->stdend = end; 2192 usb_callout_init(ii->timeout_handle); 2193 #ifdef DIAGNOSTIC 2194 if (!ii->isdone) { 2195 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2196 } 2197 ii->isdone = 0; 2198 #endif 2199 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2200 2201 splx(s); 2202 2203 return (USBD_IN_PROGRESS); 2204 } 2205 2206 void 2207 uhci_device_isoc_abort(xfer) 2208 usbd_xfer_handle xfer; 2209 { 2210 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2211 uhci_intr_info_t *ii = upipe->iinfo; 2212 uhci_soft_td_t **stds = upipe->u.iso.stds; 2213 uhci_soft_td_t *std; 2214 int i, n, nframes; 2215 2216 /* Make interrupt routine ignore it, */ 2217 xfer->status = USBD_CANCELLED; 2218 2219 /* make hardware ignore it, */ 2220 nframes = xfer->nframes; 2221 n = xfer->hcprivint; 2222 for (i = 0; i < nframes; i++) { 2223 std = stds[n]; 2224 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2225 if (++n >= UHCI_VFRAMELIST_COUNT) 2226 n = 0; 2227 } 2228 2229 xfer->hcpriv = ii; 2230 2231 /* make sure hardware has completed, */ 2232 if (xfer->device->bus->intr_context) { 2233 /* We have no process context, so we can't use tsleep(). */ 2234 usb_callout(xfer->abort_handle, hz / USB_FRAMES_PER_SECOND, 2235 uhci_abort_xfer_end, xfer); 2236 } else { 2237 usb_delay_ms(xfer->pipe->device->bus, 1); 2238 /* and call final part of interrupt handler. */ 2239 uhci_abort_xfer_end(xfer); 2240 } 2241 } 2242 2243 void 2244 uhci_device_isoc_close(pipe) 2245 usbd_pipe_handle pipe; 2246 { 2247 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2248 usbd_device_handle dev = upipe->pipe.device; 2249 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2250 uhci_soft_td_t *std, *vstd; 2251 struct iso *iso; 2252 int i; 2253 2254 /* 2255 * Make sure all TDs are marked as inactive. 2256 * Wait for completion. 2257 * Unschedule. 2258 * Deallocate. 2259 */ 2260 iso = &upipe->u.iso; 2261 2262 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2263 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2264 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2265 2266 uhci_lock_frames(sc); 2267 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2268 std = iso->stds[i]; 2269 for (vstd = sc->sc_vframes[i].htd; 2270 vstd != NULL && vstd->link.std != std; 2271 vstd = vstd->link.std) 2272 ; 2273 if (vstd == NULL) { 2274 /*panic*/ 2275 printf("uhci_device_isoc_close: %p not found\n", std); 2276 uhci_unlock_frames(sc); 2277 return; 2278 } 2279 vstd->link = std->link; 2280 vstd->td.td_link = std->td.td_link; 2281 uhci_free_std(sc, std); 2282 } 2283 uhci_unlock_frames(sc); 2284 2285 free(iso->stds, M_USBHC); 2286 } 2287 2288 usbd_status 2289 uhci_setup_isoc(pipe) 2290 usbd_pipe_handle pipe; 2291 { 2292 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2293 usbd_device_handle dev = upipe->pipe.device; 2294 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2295 int addr = upipe->pipe.device->address; 2296 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2297 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2298 uhci_soft_td_t *std, *vstd; 2299 u_int32_t token; 2300 struct iso *iso; 2301 int i; 2302 2303 iso = &upipe->u.iso; 2304 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2305 M_USBHC, M_WAITOK); 2306 2307 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2308 UHCI_TD_OUT(0, endpt, addr, 0); 2309 2310 /* Allocate the TDs and mark as inactive; */ 2311 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2312 std = uhci_alloc_std(sc); 2313 if (std == 0) 2314 goto bad; 2315 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2316 std->td.td_token = htole32(token); 2317 iso->stds[i] = std; 2318 } 2319 2320 /* Insert TDs into schedule. */ 2321 uhci_lock_frames(sc); 2322 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2323 std = iso->stds[i]; 2324 vstd = sc->sc_vframes[i].htd; 2325 std->link = vstd->link; 2326 std->td.td_link = vstd->td.td_link; 2327 vstd->link.std = std; 2328 vstd->td.td_link = htole32(std->physaddr); 2329 } 2330 uhci_unlock_frames(sc); 2331 2332 iso->next = -1; 2333 iso->inuse = 0; 2334 2335 return (USBD_NORMAL_COMPLETION); 2336 2337 bad: 2338 while (--i >= 0) 2339 uhci_free_std(sc, iso->stds[i]); 2340 free(iso->stds, M_USBHC); 2341 return (USBD_NOMEM); 2342 } 2343 2344 void 2345 uhci_device_isoc_done(xfer) 2346 usbd_xfer_handle xfer; 2347 { 2348 uhci_intr_info_t *ii = xfer->hcpriv; 2349 2350 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2351 2352 /* Turn off the interrupt since it is active even if the TD is not. */ 2353 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2354 2355 LIST_REMOVE(ii, list); /* remove from active list */ 2356 } 2357 2358 void 2359 uhci_device_intr_done(xfer) 2360 usbd_xfer_handle xfer; 2361 { 2362 uhci_intr_info_t *ii = xfer->hcpriv; 2363 uhci_softc_t *sc = ii->sc; 2364 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2365 uhci_soft_qh_t *sqh; 2366 int i, npoll; 2367 2368 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2369 2370 npoll = upipe->u.intr.npoll; 2371 for(i = 0; i < npoll; i++) { 2372 sqh = upipe->u.intr.qhs[i]; 2373 sqh->elink = 0; 2374 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2375 } 2376 uhci_free_std_chain(sc, ii->stdstart, 0); 2377 2378 /* XXX Wasteful. */ 2379 if (xfer->pipe->repeat) { 2380 uhci_soft_td_t *data, *dataend; 2381 2382 /* This alloc cannot fail since we freed the chain above. */ 2383 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2384 &xfer->dmabuf, &data, &dataend); 2385 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2386 2387 #ifdef UHCI_DEBUG 2388 if (uhcidebug > 10) { 2389 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2390 uhci_dump_tds(data); 2391 uhci_dump_qh(upipe->u.intr.qhs[0]); 2392 } 2393 #endif 2394 2395 ii->stdstart = data; 2396 ii->stdend = dataend; 2397 usb_callout_init(ii->timeout_handle); 2398 #ifdef DIAGNOSTIC 2399 if (!ii->isdone) { 2400 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2401 } 2402 ii->isdone = 0; 2403 #endif 2404 for (i = 0; i < npoll; i++) { 2405 sqh = upipe->u.intr.qhs[i]; 2406 sqh->elink = data; 2407 sqh->qh.qh_elink = htole32(data->physaddr); 2408 } 2409 } else { 2410 ii->stdstart = 0; /* mark as inactive */ 2411 } 2412 } 2413 2414 /* Deallocate request data structures */ 2415 void 2416 uhci_device_ctrl_done(xfer) 2417 usbd_xfer_handle xfer; 2418 { 2419 uhci_intr_info_t *ii = xfer->hcpriv; 2420 uhci_softc_t *sc = ii->sc; 2421 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2422 2423 #ifdef DIAGNOSTIC 2424 if (!(xfer->rqflags & URQ_REQUEST)) 2425 panic("uhci_ctrl_done: not a request\n"); 2426 #endif 2427 2428 LIST_REMOVE(ii, list); /* remove from active list */ 2429 2430 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2431 2432 if (upipe->u.ctl.length != 0) 2433 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2434 2435 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2436 } 2437 2438 /* Deallocate request data structures */ 2439 void 2440 uhci_device_bulk_done(xfer) 2441 usbd_xfer_handle xfer; 2442 { 2443 uhci_intr_info_t *ii = xfer->hcpriv; 2444 uhci_softc_t *sc = ii->sc; 2445 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2446 2447 LIST_REMOVE(ii, list); /* remove from active list */ 2448 2449 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2450 2451 uhci_free_std_chain(sc, ii->stdstart, 0); 2452 2453 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2454 } 2455 2456 /* Add interrupt QH, called with vflock. */ 2457 void 2458 uhci_add_intr(sc, n, sqh) 2459 uhci_softc_t *sc; 2460 int n; 2461 uhci_soft_qh_t *sqh; 2462 { 2463 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2464 uhci_soft_qh_t *eqh; 2465 2466 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2467 eqh = vf->eqh; 2468 sqh->hlink = eqh->hlink; 2469 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2470 eqh->hlink = sqh; 2471 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2472 vf->eqh = sqh; 2473 vf->bandwidth++; 2474 } 2475 2476 /* Remove interrupt QH, called with vflock. */ 2477 void 2478 uhci_remove_intr(sc, n, sqh) 2479 uhci_softc_t *sc; 2480 int n; 2481 uhci_soft_qh_t *sqh; 2482 { 2483 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2484 uhci_soft_qh_t *pqh; 2485 2486 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2487 2488 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2489 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2490 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2491 DPRINTF(("uhci_remove_intr: QH not found\n")); 2492 return; 2493 } 2494 #else 2495 ; 2496 #endif 2497 pqh->hlink = sqh->hlink; 2498 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2499 if (vf->eqh == sqh) 2500 vf->eqh = pqh; 2501 vf->bandwidth--; 2502 } 2503 2504 usbd_status 2505 uhci_device_setintr(sc, upipe, ival) 2506 uhci_softc_t *sc; 2507 struct uhci_pipe *upipe; 2508 int ival; 2509 { 2510 uhci_soft_qh_t *sqh; 2511 int i, npoll, s; 2512 u_int bestbw, bw, bestoffs, offs; 2513 2514 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2515 if (ival == 0) { 2516 printf("uhci_setintr: 0 interval\n"); 2517 return (USBD_INVAL); 2518 } 2519 2520 if (ival > UHCI_VFRAMELIST_COUNT) 2521 ival = UHCI_VFRAMELIST_COUNT; 2522 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2523 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2524 2525 upipe->u.intr.npoll = npoll; 2526 upipe->u.intr.qhs = 2527 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2528 2529 /* 2530 * Figure out which offset in the schedule that has most 2531 * bandwidth left over. 2532 */ 2533 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2534 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2535 for (bw = i = 0; i < npoll; i++) 2536 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2537 if (bw < bestbw) { 2538 bestbw = bw; 2539 bestoffs = offs; 2540 } 2541 } 2542 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2543 2544 upipe->iinfo->stdstart = 0; 2545 for(i = 0; i < npoll; i++) { 2546 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2547 sqh->elink = 0; 2548 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2549 sqh->pos = MOD(i * ival + bestoffs); 2550 sqh->intr_info = upipe->iinfo; 2551 } 2552 #undef MOD 2553 2554 s = splusb(); 2555 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2556 splx(s); 2557 2558 uhci_lock_frames(sc); 2559 /* Enter QHs into the controller data structures. */ 2560 for(i = 0; i < npoll; i++) 2561 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2562 upipe->u.intr.qhs[i]); 2563 uhci_unlock_frames(sc); 2564 2565 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2566 return (USBD_NORMAL_COMPLETION); 2567 } 2568 2569 /* Open a new pipe. */ 2570 usbd_status 2571 uhci_open(pipe) 2572 usbd_pipe_handle pipe; 2573 { 2574 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2575 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2576 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2577 usbd_status err; 2578 int ival; 2579 2580 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2581 pipe, pipe->device->address, 2582 ed->bEndpointAddress, sc->sc_addr)); 2583 if (pipe->device->address == sc->sc_addr) { 2584 switch (ed->bEndpointAddress) { 2585 case USB_CONTROL_ENDPOINT: 2586 pipe->methods = &uhci_root_ctrl_methods; 2587 break; 2588 case UE_DIR_IN | UHCI_INTR_ENDPT: 2589 pipe->methods = &uhci_root_intr_methods; 2590 break; 2591 default: 2592 return (USBD_INVAL); 2593 } 2594 } else { 2595 upipe->iinfo = uhci_alloc_intr_info(sc); 2596 if (upipe->iinfo == 0) 2597 return (USBD_NOMEM); 2598 switch (ed->bmAttributes & UE_XFERTYPE) { 2599 case UE_CONTROL: 2600 pipe->methods = &uhci_device_ctrl_methods; 2601 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2602 if (upipe->u.ctl.sqh == NULL) 2603 goto bad; 2604 upipe->u.ctl.setup = uhci_alloc_std(sc); 2605 if (upipe->u.ctl.setup == NULL) { 2606 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2607 goto bad; 2608 } 2609 upipe->u.ctl.stat = uhci_alloc_std(sc); 2610 if (upipe->u.ctl.stat == NULL) { 2611 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2612 uhci_free_std(sc, upipe->u.ctl.setup); 2613 goto bad; 2614 } 2615 err = usb_allocmem(&sc->sc_bus, 2616 sizeof(usb_device_request_t), 2617 0, &upipe->u.ctl.reqdma); 2618 if (err) { 2619 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2620 uhci_free_std(sc, upipe->u.ctl.setup); 2621 uhci_free_std(sc, upipe->u.ctl.stat); 2622 goto bad; 2623 } 2624 break; 2625 case UE_INTERRUPT: 2626 pipe->methods = &uhci_device_intr_methods; 2627 ival = pipe->interval; 2628 if (ival == USBD_DEFAULT_INTERVAL) 2629 ival = ed->bInterval; 2630 return (uhci_device_setintr(sc, upipe, ival)); 2631 case UE_ISOCHRONOUS: 2632 pipe->methods = &uhci_device_isoc_methods; 2633 return (uhci_setup_isoc(pipe)); 2634 case UE_BULK: 2635 pipe->methods = &uhci_device_bulk_methods; 2636 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2637 if (upipe->u.bulk.sqh == NULL) 2638 goto bad; 2639 break; 2640 } 2641 } 2642 return (USBD_NORMAL_COMPLETION); 2643 2644 bad: 2645 uhci_free_intr_info(upipe->iinfo); 2646 return (USBD_NOMEM); 2647 } 2648 2649 /* 2650 * Data structures and routines to emulate the root hub. 2651 */ 2652 usb_device_descriptor_t uhci_devd = { 2653 USB_DEVICE_DESCRIPTOR_SIZE, 2654 UDESC_DEVICE, /* type */ 2655 {0x00, 0x01}, /* USB version */ 2656 UDCLASS_HUB, /* class */ 2657 UDSUBCLASS_HUB, /* subclass */ 2658 0, /* protocol */ 2659 64, /* max packet */ 2660 {0},{0},{0x00,0x01}, /* device id */ 2661 1,2,0, /* string indicies */ 2662 1 /* # of configurations */ 2663 }; 2664 2665 usb_config_descriptor_t uhci_confd = { 2666 USB_CONFIG_DESCRIPTOR_SIZE, 2667 UDESC_CONFIG, 2668 {USB_CONFIG_DESCRIPTOR_SIZE + 2669 USB_INTERFACE_DESCRIPTOR_SIZE + 2670 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2671 1, 2672 1, 2673 0, 2674 UC_SELF_POWERED, 2675 0 /* max power */ 2676 }; 2677 2678 usb_interface_descriptor_t uhci_ifcd = { 2679 USB_INTERFACE_DESCRIPTOR_SIZE, 2680 UDESC_INTERFACE, 2681 0, 2682 0, 2683 1, 2684 UICLASS_HUB, 2685 UISUBCLASS_HUB, 2686 0, 2687 0 2688 }; 2689 2690 usb_endpoint_descriptor_t uhci_endpd = { 2691 USB_ENDPOINT_DESCRIPTOR_SIZE, 2692 UDESC_ENDPOINT, 2693 UE_DIR_IN | UHCI_INTR_ENDPT, 2694 UE_INTERRUPT, 2695 {8}, 2696 255 2697 }; 2698 2699 usb_hub_descriptor_t uhci_hubd_piix = { 2700 USB_HUB_DESCRIPTOR_SIZE, 2701 UDESC_HUB, 2702 2, 2703 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2704 50, /* power on to power good */ 2705 0, 2706 { 0x00 }, /* both ports are removable */ 2707 }; 2708 2709 int 2710 uhci_str(p, l, s) 2711 usb_string_descriptor_t *p; 2712 int l; 2713 char *s; 2714 { 2715 int i; 2716 2717 if (l == 0) 2718 return (0); 2719 p->bLength = 2 * strlen(s) + 2; 2720 if (l == 1) 2721 return (1); 2722 p->bDescriptorType = UDESC_STRING; 2723 l -= 2; 2724 for (i = 0; s[i] && l > 1; i++, l -= 2) 2725 USETW2(p->bString[i], 0, s[i]); 2726 return (2*i+2); 2727 } 2728 2729 /* 2730 * Simulate a hardware hub by handling all the necessary requests. 2731 */ 2732 usbd_status 2733 uhci_root_ctrl_transfer(xfer) 2734 usbd_xfer_handle xfer; 2735 { 2736 usbd_status err; 2737 2738 /* Insert last in queue. */ 2739 err = usb_insert_transfer(xfer); 2740 if (err) 2741 return (err); 2742 2743 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2744 * start first 2745 */ 2746 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2747 } 2748 2749 usbd_status 2750 uhci_root_ctrl_start(xfer) 2751 usbd_xfer_handle xfer; 2752 { 2753 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2754 usb_device_request_t *req; 2755 void *buf = NULL; 2756 int port, x; 2757 int s, len, value, index, status, change, l, totlen = 0; 2758 usb_port_status_t ps; 2759 usbd_status err; 2760 2761 if (sc->sc_dying) 2762 return (USBD_IOERROR); 2763 2764 #ifdef DIAGNOSTIC 2765 if (!(xfer->rqflags & URQ_REQUEST)) 2766 panic("uhci_root_ctrl_transfer: not a request\n"); 2767 #endif 2768 req = &xfer->request; 2769 2770 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2771 req->bmRequestType, req->bRequest)); 2772 2773 len = UGETW(req->wLength); 2774 value = UGETW(req->wValue); 2775 index = UGETW(req->wIndex); 2776 2777 if (len != 0) 2778 buf = KERNADDR(&xfer->dmabuf); 2779 2780 #define C(x,y) ((x) | ((y) << 8)) 2781 switch(C(req->bRequest, req->bmRequestType)) { 2782 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2783 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2784 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2785 /* 2786 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2787 * for the integrated root hub. 2788 */ 2789 break; 2790 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2791 if (len > 0) { 2792 *(u_int8_t *)buf = sc->sc_conf; 2793 totlen = 1; 2794 } 2795 break; 2796 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2797 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2798 switch(value >> 8) { 2799 case UDESC_DEVICE: 2800 if ((value & 0xff) != 0) { 2801 err = USBD_IOERROR; 2802 goto ret; 2803 } 2804 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2805 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2806 memcpy(buf, &uhci_devd, l); 2807 break; 2808 case UDESC_CONFIG: 2809 if ((value & 0xff) != 0) { 2810 err = USBD_IOERROR; 2811 goto ret; 2812 } 2813 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2814 memcpy(buf, &uhci_confd, l); 2815 buf = (char *)buf + l; 2816 len -= l; 2817 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2818 totlen += l; 2819 memcpy(buf, &uhci_ifcd, l); 2820 buf = (char *)buf + l; 2821 len -= l; 2822 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2823 totlen += l; 2824 memcpy(buf, &uhci_endpd, l); 2825 break; 2826 case UDESC_STRING: 2827 if (len == 0) 2828 break; 2829 *(u_int8_t *)buf = 0; 2830 totlen = 1; 2831 switch (value & 0xff) { 2832 case 1: /* Vendor */ 2833 totlen = uhci_str(buf, len, sc->sc_vendor); 2834 break; 2835 case 2: /* Product */ 2836 totlen = uhci_str(buf, len, "UHCI root hub"); 2837 break; 2838 } 2839 break; 2840 default: 2841 err = USBD_IOERROR; 2842 goto ret; 2843 } 2844 break; 2845 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2846 if (len > 0) { 2847 *(u_int8_t *)buf = 0; 2848 totlen = 1; 2849 } 2850 break; 2851 case C(UR_GET_STATUS, UT_READ_DEVICE): 2852 if (len > 1) { 2853 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2854 totlen = 2; 2855 } 2856 break; 2857 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2858 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2859 if (len > 1) { 2860 USETW(((usb_status_t *)buf)->wStatus, 0); 2861 totlen = 2; 2862 } 2863 break; 2864 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2865 if (value >= USB_MAX_DEVICES) { 2866 err = USBD_IOERROR; 2867 goto ret; 2868 } 2869 sc->sc_addr = value; 2870 break; 2871 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2872 if (value != 0 && value != 1) { 2873 err = USBD_IOERROR; 2874 goto ret; 2875 } 2876 sc->sc_conf = value; 2877 break; 2878 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2879 break; 2880 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2881 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2882 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2883 err = USBD_IOERROR; 2884 goto ret; 2885 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2886 break; 2887 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2888 break; 2889 /* Hub requests */ 2890 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2891 break; 2892 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2893 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2894 "port=%d feature=%d\n", 2895 index, value)); 2896 if (index == 1) 2897 port = UHCI_PORTSC1; 2898 else if (index == 2) 2899 port = UHCI_PORTSC2; 2900 else { 2901 err = USBD_IOERROR; 2902 goto ret; 2903 } 2904 switch(value) { 2905 case UHF_PORT_ENABLE: 2906 x = UREAD2(sc, port); 2907 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2908 break; 2909 case UHF_PORT_SUSPEND: 2910 x = UREAD2(sc, port); 2911 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2912 break; 2913 case UHF_PORT_RESET: 2914 x = UREAD2(sc, port); 2915 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2916 break; 2917 case UHF_C_PORT_CONNECTION: 2918 x = UREAD2(sc, port); 2919 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2920 break; 2921 case UHF_C_PORT_ENABLE: 2922 x = UREAD2(sc, port); 2923 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2924 break; 2925 case UHF_C_PORT_OVER_CURRENT: 2926 x = UREAD2(sc, port); 2927 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2928 break; 2929 case UHF_C_PORT_RESET: 2930 sc->sc_isreset = 0; 2931 err = USBD_NORMAL_COMPLETION; 2932 goto ret; 2933 case UHF_PORT_CONNECTION: 2934 case UHF_PORT_OVER_CURRENT: 2935 case UHF_PORT_POWER: 2936 case UHF_PORT_LOW_SPEED: 2937 case UHF_C_PORT_SUSPEND: 2938 default: 2939 err = USBD_IOERROR; 2940 goto ret; 2941 } 2942 break; 2943 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2944 if (index == 1) 2945 port = UHCI_PORTSC1; 2946 else if (index == 2) 2947 port = UHCI_PORTSC2; 2948 else { 2949 err = USBD_IOERROR; 2950 goto ret; 2951 } 2952 if (len > 0) { 2953 *(u_int8_t *)buf = 2954 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2955 UHCI_PORTSC_LS_SHIFT; 2956 totlen = 1; 2957 } 2958 break; 2959 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2960 if (value != 0) { 2961 err = USBD_IOERROR; 2962 goto ret; 2963 } 2964 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2965 totlen = l; 2966 memcpy(buf, &uhci_hubd_piix, l); 2967 break; 2968 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2969 if (len != 4) { 2970 err = USBD_IOERROR; 2971 goto ret; 2972 } 2973 memset(buf, 0, len); 2974 totlen = len; 2975 break; 2976 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2977 if (index == 1) 2978 port = UHCI_PORTSC1; 2979 else if (index == 2) 2980 port = UHCI_PORTSC2; 2981 else { 2982 err = USBD_IOERROR; 2983 goto ret; 2984 } 2985 if (len != 4) { 2986 err = USBD_IOERROR; 2987 goto ret; 2988 } 2989 x = UREAD2(sc, port); 2990 status = change = 0; 2991 if (x & UHCI_PORTSC_CCS ) 2992 status |= UPS_CURRENT_CONNECT_STATUS; 2993 if (x & UHCI_PORTSC_CSC ) 2994 change |= UPS_C_CONNECT_STATUS; 2995 if (x & UHCI_PORTSC_PE ) 2996 status |= UPS_PORT_ENABLED; 2997 if (x & UHCI_PORTSC_POEDC) 2998 change |= UPS_C_PORT_ENABLED; 2999 if (x & UHCI_PORTSC_OCI ) 3000 status |= UPS_OVERCURRENT_INDICATOR; 3001 if (x & UHCI_PORTSC_OCIC ) 3002 change |= UPS_C_OVERCURRENT_INDICATOR; 3003 if (x & UHCI_PORTSC_SUSP ) 3004 status |= UPS_SUSPEND; 3005 if (x & UHCI_PORTSC_LSDA ) 3006 status |= UPS_LOW_SPEED; 3007 status |= UPS_PORT_POWER; 3008 if (sc->sc_isreset) 3009 change |= UPS_C_PORT_RESET; 3010 USETW(ps.wPortStatus, status); 3011 USETW(ps.wPortChange, change); 3012 l = min(len, sizeof ps); 3013 memcpy(buf, &ps, l); 3014 totlen = l; 3015 break; 3016 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3017 err = USBD_IOERROR; 3018 goto ret; 3019 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3020 break; 3021 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3022 if (index == 1) 3023 port = UHCI_PORTSC1; 3024 else if (index == 2) 3025 port = UHCI_PORTSC2; 3026 else { 3027 err = USBD_IOERROR; 3028 goto ret; 3029 } 3030 switch(value) { 3031 case UHF_PORT_ENABLE: 3032 x = UREAD2(sc, port); 3033 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3034 break; 3035 case UHF_PORT_SUSPEND: 3036 x = UREAD2(sc, port); 3037 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3038 break; 3039 case UHF_PORT_RESET: 3040 x = UREAD2(sc, port); 3041 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3042 usb_delay_ms(&sc->sc_bus, 10); 3043 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3044 delay(100); 3045 x = UREAD2(sc, port); 3046 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3047 delay(100); 3048 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3049 index, UREAD2(sc, port))); 3050 sc->sc_isreset = 1; 3051 break; 3052 case UHF_C_PORT_CONNECTION: 3053 case UHF_C_PORT_ENABLE: 3054 case UHF_C_PORT_OVER_CURRENT: 3055 case UHF_PORT_CONNECTION: 3056 case UHF_PORT_OVER_CURRENT: 3057 case UHF_PORT_POWER: 3058 case UHF_PORT_LOW_SPEED: 3059 case UHF_C_PORT_SUSPEND: 3060 case UHF_C_PORT_RESET: 3061 default: 3062 err = USBD_IOERROR; 3063 goto ret; 3064 } 3065 break; 3066 default: 3067 err = USBD_IOERROR; 3068 goto ret; 3069 } 3070 xfer->actlen = totlen; 3071 err = USBD_NORMAL_COMPLETION; 3072 ret: 3073 xfer->status = err; 3074 xfer->hcpriv = 0; 3075 s = splusb(); 3076 usb_transfer_complete(xfer); 3077 splx(s); 3078 return (USBD_IN_PROGRESS); 3079 } 3080 3081 /* Abort a root control request. */ 3082 void 3083 uhci_root_ctrl_abort(xfer) 3084 usbd_xfer_handle xfer; 3085 { 3086 /* Nothing to do, all transfers are synchronous. */ 3087 } 3088 3089 /* Close the root pipe. */ 3090 void 3091 uhci_root_ctrl_close(pipe) 3092 usbd_pipe_handle pipe; 3093 { 3094 DPRINTF(("uhci_root_ctrl_close\n")); 3095 } 3096 3097 /* Abort a root interrupt request. */ 3098 void 3099 uhci_root_intr_abort(xfer) 3100 usbd_xfer_handle xfer; 3101 { 3102 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3103 3104 usb_uncallout(xfer->timo_handle, uhci_timo, xfer); 3105 sc->sc_has_timo = NULL; 3106 3107 if (xfer->pipe->intrxfer == xfer) { 3108 DPRINTF(("uhci_root_intr_abort: remove\n")); 3109 xfer->pipe->intrxfer = 0; 3110 } 3111 xfer->status = USBD_CANCELLED; 3112 usb_transfer_complete(xfer); 3113 } 3114 3115 usbd_status 3116 uhci_root_intr_transfer(xfer) 3117 usbd_xfer_handle xfer; 3118 { 3119 usbd_status err; 3120 3121 /* Insert last in queue. */ 3122 err = usb_insert_transfer(xfer); 3123 if (err) 3124 return (err); 3125 3126 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3127 * start first 3128 */ 3129 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3130 } 3131 3132 /* Start a transfer on the root interrupt pipe */ 3133 usbd_status 3134 uhci_root_intr_start(xfer) 3135 usbd_xfer_handle xfer; 3136 { 3137 usbd_pipe_handle pipe = xfer->pipe; 3138 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3139 3140 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3141 xfer, xfer->length, xfer->flags)); 3142 3143 if (sc->sc_dying) 3144 return (USBD_IOERROR); 3145 3146 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3147 usb_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 3148 sc->sc_has_timo = xfer; 3149 return (USBD_IN_PROGRESS); 3150 } 3151 3152 /* Close the root interrupt pipe. */ 3153 void 3154 uhci_root_intr_close(pipe) 3155 usbd_pipe_handle pipe; 3156 { 3157 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3158 3159 usb_uncallout(pipe->intrxfer->timo_handle, uhci_timo, pipe->intrxfer); 3160 sc->sc_has_timo = NULL; 3161 DPRINTF(("uhci_root_intr_close\n")); 3162 } 3163
Indexes created Tue Sep 30 17:09:57 GMT 2025