uhci.c revision 1.92
1 /* $NetBSD: uhci.c,v 1.92 2000/03/24 22:57:58 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 uhci_softc_t *thesc; 97 #define DPRINTF(x) if (uhcidebug) printf x 98 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 99 int uhcidebug = 0; 100 #else 101 #define DPRINTF(x) 102 #define DPRINTFN(n,x) 103 #endif 104 105 /* 106 * The UHCI controller is little endian, so on big endian machines 107 * the data strored in memory needs to be swapped. 108 */ 109 #if defined(__FreeBSD__) 110 #if BYTE_ORDER == BIG_ENDIAN 111 #define htole32(x) (bswap32(x)) 112 #define le32toh(x) (bswap32(x)) 113 #else 114 #define htole32(x) (x) 115 #define le32toh(x) (x) 116 #endif 117 #endif 118 119 struct uhci_pipe { 120 struct usbd_pipe pipe; 121 int nexttoggle; 122 123 u_char aborting; 124 usbd_xfer_handle abortstart, abortend; 125 usb_callout_t abort_timeout; 126 127 /* Info needed for different pipe kinds. */ 128 union { 129 /* Control pipe */ 130 struct { 131 uhci_soft_qh_t *sqh; 132 usb_dma_t reqdma; 133 uhci_soft_td_t *setup, *stat; 134 u_int length; 135 } ctl; 136 /* Interrupt pipe */ 137 struct { 138 int npoll; 139 uhci_soft_qh_t **qhs; 140 } intr; 141 /* Bulk pipe */ 142 struct { 143 uhci_soft_qh_t *sqh; 144 u_int length; 145 int isread; 146 } bulk; 147 /* Iso pipe */ 148 struct iso { 149 uhci_soft_td_t **stds; 150 int next, inuse; 151 } iso; 152 } u; 153 }; 154 155 static void uhci_busreset __P((uhci_softc_t *)); 156 static void uhci_shutdown __P((void *v)); 157 static void uhci_power __P((int, void *)); 158 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 159 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 160 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 161 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 162 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 163 #if 0 164 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 165 uhci_intr_info_t *)); 166 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 167 #endif 168 169 static void uhci_free_std_chain __P((uhci_softc_t *, 170 uhci_soft_td_t *, uhci_soft_td_t *)); 171 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 172 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 173 uhci_soft_td_t **, uhci_soft_td_t **)); 174 static void uhci_timo __P((void *)); 175 static void uhci_waitintr __P((uhci_softc_t *, 176 usbd_xfer_handle)); 177 static void uhci_check_intr __P((uhci_softc_t *, 178 uhci_intr_info_t *)); 179 static void uhci_idone __P((uhci_intr_info_t *)); 180 181 static void uhci_abort_xfer __P((usbd_xfer_handle, 182 usbd_status status)); 183 static void uhci_abort_xfer_end __P((void *v)); 184 static void uhci_abort_unlink_qh __P((struct uhci_pipe *)); 185 static void uhci_abort_relink_qh __P((struct uhci_pipe *)); 186 static void uhci_cancel_abort __P((usbd_pipe_handle)); 187 188 static void uhci_timeout __P((void *)); 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 *, uhci_soft_qh_t *)); 248 static void uhci_remove_intr __P((uhci_softc_t*, uhci_soft_qh_t*)); 249 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 250 struct uhci_pipe *pipe, int ival)); 251 252 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 253 static void uhci_noop __P((usbd_pipe_handle pipe)); 254 255 static __inline__ uhci_soft_qh_t *uhci_find_prev_qh 256 __P((uhci_soft_qh_t *, uhci_soft_qh_t *)); 257 258 #ifdef UHCI_DEBUG 259 static void uhci_dumpregs __P((uhci_softc_t *)); 260 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 261 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 262 static void uhci_dump_tds __P((uhci_soft_td_t *)); 263 static void uhci_dump_td __P((uhci_soft_td_t *)); 264 #endif 265 266 #define UWRITE1(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 267 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 268 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 269 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 270 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 271 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 272 273 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 274 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 275 276 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 277 278 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 279 280 #define UHCI_INTR_ENDPT 1 281 282 struct usbd_bus_methods uhci_bus_methods = { 283 uhci_open, 284 uhci_softintr, 285 uhci_poll, 286 uhci_allocm, 287 uhci_freem, 288 uhci_allocx, 289 uhci_freex, 290 }; 291 292 struct usbd_pipe_methods uhci_root_ctrl_methods = { 293 uhci_root_ctrl_transfer, 294 uhci_root_ctrl_start, 295 uhci_root_ctrl_abort, 296 uhci_root_ctrl_close, 297 uhci_noop, 298 uhci_root_ctrl_done, 299 }; 300 301 struct usbd_pipe_methods uhci_root_intr_methods = { 302 uhci_root_intr_transfer, 303 uhci_root_intr_start, 304 uhci_root_intr_abort, 305 uhci_root_intr_close, 306 uhci_noop, 307 uhci_root_intr_done, 308 }; 309 310 struct usbd_pipe_methods uhci_device_ctrl_methods = { 311 uhci_device_ctrl_transfer, 312 uhci_device_ctrl_start, 313 uhci_device_ctrl_abort, 314 uhci_device_ctrl_close, 315 uhci_noop, 316 uhci_device_ctrl_done, 317 }; 318 319 struct usbd_pipe_methods uhci_device_intr_methods = { 320 uhci_device_intr_transfer, 321 uhci_device_intr_start, 322 uhci_device_intr_abort, 323 uhci_device_intr_close, 324 uhci_device_clear_toggle, 325 uhci_device_intr_done, 326 }; 327 328 struct usbd_pipe_methods uhci_device_bulk_methods = { 329 uhci_device_bulk_transfer, 330 uhci_device_bulk_start, 331 uhci_device_bulk_abort, 332 uhci_device_bulk_close, 333 uhci_device_clear_toggle, 334 uhci_device_bulk_done, 335 }; 336 337 struct usbd_pipe_methods uhci_device_isoc_methods = { 338 uhci_device_isoc_transfer, 339 uhci_device_isoc_start, 340 uhci_device_isoc_abort, 341 uhci_device_isoc_close, 342 uhci_noop, 343 uhci_device_isoc_done, 344 }; 345 346 #define uhci_add_intr_info(sc, ii) \ 347 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 348 #define uhci_del_intr_info(ii) \ 349 LIST_REMOVE((ii), list) 350 351 static __inline__ uhci_soft_qh_t * 352 uhci_find_prev_qh(pqh, sqh) 353 uhci_soft_qh_t *pqh, *sqh; 354 { 355 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 356 357 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 358 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 359 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 360 printf("uhci_find_qh: QH not found\n"); 361 return (NULL); 362 } 363 #endif 364 } 365 return (pqh); 366 } 367 368 void 369 uhci_busreset(sc) 370 uhci_softc_t *sc; 371 { 372 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 373 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 374 UHCICMD(sc, 0); /* do nothing */ 375 } 376 377 usbd_status 378 uhci_init(sc) 379 uhci_softc_t *sc; 380 { 381 usbd_status err; 382 int i, j; 383 uhci_soft_qh_t *csqh, *bsqh, *sqh; 384 uhci_soft_td_t *std; 385 386 DPRINTFN(1,("uhci_init: start\n")); 387 388 #ifdef UHCI_DEBUG 389 thesc = sc; 390 391 if (uhcidebug > 2) 392 uhci_dumpregs(sc); 393 #endif 394 395 uhci_run(sc, 0); /* stop the controller */ 396 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 397 398 uhci_busreset(sc); 399 400 /* Allocate and initialize real frame array. */ 401 err = usb_allocmem(&sc->sc_bus, 402 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 403 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 404 if (err) 405 return (err); 406 sc->sc_pframes = KERNADDR(&sc->sc_dma); 407 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 408 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 409 410 /* Allocate the dummy QH where bulk traffic will be queued. */ 411 bsqh = uhci_alloc_sqh(sc); 412 if (bsqh == NULL) 413 return (USBD_NOMEM); 414 bsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 415 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 416 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 417 418 /* Allocate the dummy QH where control traffic will be queued. */ 419 csqh = uhci_alloc_sqh(sc); 420 if (csqh == NULL) 421 return (USBD_NOMEM); 422 csqh->hlink = bsqh; 423 csqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_Q); 424 csqh->qh.qh_elink = htole32(UHCI_PTR_T); 425 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 426 427 /* 428 * Make all (virtual) frame list pointers point to the interrupt 429 * queue heads and the interrupt queue heads at the control 430 * queue head and point the physical frame list to the virtual. 431 */ 432 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 433 std = uhci_alloc_std(sc); 434 sqh = uhci_alloc_sqh(sc); 435 if (std == NULL || sqh == NULL) 436 return (USBD_NOMEM); 437 std->link.sqh = sqh; 438 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_Q); 439 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 440 std->td.td_token = htole32(0); 441 std->td.td_buffer = htole32(0); 442 sqh->hlink = csqh; 443 sqh->qh.qh_hlink = htole32(csqh->physaddr | UHCI_PTR_Q); 444 sqh->elink = 0; 445 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 446 sc->sc_vframes[i].htd = std; 447 sc->sc_vframes[i].etd = std; 448 sc->sc_vframes[i].hqh = sqh; 449 sc->sc_vframes[i].eqh = sqh; 450 for (j = i; 451 j < UHCI_FRAMELIST_COUNT; 452 j += UHCI_VFRAMELIST_COUNT) 453 sc->sc_pframes[j] = htole32(std->physaddr); 454 } 455 456 LIST_INIT(&sc->sc_intrhead); 457 458 SIMPLEQ_INIT(&sc->sc_free_xfers); 459 460 /* Set up the bus struct. */ 461 sc->sc_bus.methods = &uhci_bus_methods; 462 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 463 464 #if defined(__NetBSD__) || defined(__OpenBSD__) 465 sc->sc_suspend = PWR_RESUME; 466 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 467 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 468 #endif 469 470 DPRINTFN(1,("uhci_init: enabling\n")); 471 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 472 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 473 474 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 475 476 return (uhci_run(sc, 1)); /* and here we go... */ 477 } 478 479 #if defined(__NetBSD__) || defined(__OpenBSD__) 480 int 481 uhci_activate(self, act) 482 device_ptr_t self; 483 enum devact act; 484 { 485 struct uhci_softc *sc = (struct uhci_softc *)self; 486 int rv = 0; 487 488 switch (act) { 489 case DVACT_ACTIVATE: 490 return (EOPNOTSUPP); 491 break; 492 493 case DVACT_DEACTIVATE: 494 if (sc->sc_child != NULL) 495 rv = config_deactivate(sc->sc_child); 496 break; 497 } 498 return (rv); 499 } 500 501 int 502 uhci_detach(sc, flags) 503 struct uhci_softc *sc; 504 int flags; 505 { 506 usbd_xfer_handle xfer; 507 int rv = 0; 508 509 if (sc->sc_child != NULL) 510 rv = config_detach(sc->sc_child, flags); 511 512 if (rv != 0) 513 return (rv); 514 515 #if defined(__NetBSD__) || defined(__OpenBSD__) 516 powerhook_disestablish(sc->sc_powerhook); 517 shutdownhook_disestablish(sc->sc_shutdownhook); 518 #endif 519 520 /* Free all xfers associated with this HC. */ 521 for (;;) { 522 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 523 if (xfer == NULL) 524 break; 525 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 526 free(xfer, M_USB); 527 } 528 529 /* XXX free other data structures XXX */ 530 531 return (rv); 532 } 533 #endif 534 535 usbd_status 536 uhci_allocm(bus, dma, size) 537 struct usbd_bus *bus; 538 usb_dma_t *dma; 539 u_int32_t size; 540 { 541 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 542 dma)); 543 } 544 545 void 546 uhci_freem(bus, dma) 547 struct usbd_bus *bus; 548 usb_dma_t *dma; 549 { 550 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 551 } 552 553 usbd_xfer_handle 554 uhci_allocx(bus) 555 struct usbd_bus *bus; 556 { 557 struct uhci_softc *sc = (struct uhci_softc *)bus; 558 usbd_xfer_handle xfer; 559 560 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 561 if (xfer != NULL) 562 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 563 else 564 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 565 if (xfer != NULL) { 566 memset(xfer, 0, sizeof (struct uhci_xfer)); 567 UXFER(xfer)->iinfo.sc = sc; 568 #ifdef DIAGNOSTIC 569 UXFER(xfer)->iinfo.isdone = 1; 570 #endif 571 } 572 return (xfer); 573 } 574 575 void 576 uhci_freex(bus, xfer) 577 struct usbd_bus *bus; 578 usbd_xfer_handle xfer; 579 { 580 struct uhci_softc *sc = (struct uhci_softc *)bus; 581 582 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 583 } 584 585 /* 586 * Shut down the controller when the system is going down. 587 */ 588 void 589 uhci_shutdown(v) 590 void *v; 591 { 592 uhci_softc_t *sc = v; 593 594 DPRINTF(("uhci_shutdown: stopping the HC\n")); 595 uhci_run(sc, 0); /* stop the controller */ 596 } 597 598 /* 599 * Handle suspend/resume. 600 * 601 * We need to switch to polling mode here, because this routine is 602 * called from an intterupt context. This is all right since we 603 * are almost suspended anyway. 604 */ 605 void 606 uhci_power(why, v) 607 int why; 608 void *v; 609 { 610 uhci_softc_t *sc = v; 611 int cmd; 612 int s; 613 614 s = splusb(); 615 cmd = UREAD2(sc, UHCI_CMD); 616 617 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 618 sc, why, sc->sc_suspend, cmd)); 619 620 if (why != PWR_RESUME) { 621 #ifdef UHCI_DEBUG 622 if (uhcidebug > 2) 623 uhci_dumpregs(sc); 624 #endif 625 if (sc->sc_has_timo != NULL) 626 usb_uncallout(sc->sc_has_timo->timo_handle, 627 uhci_timo, sc->sc_has_timo); 628 sc->sc_bus.use_polling++; 629 uhci_run(sc, 0); /* stop the controller */ 630 631 /* save some state if BIOS doesn't */ 632 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 633 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 634 635 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 636 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 637 sc->sc_suspend = why; 638 sc->sc_bus.use_polling--; 639 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 640 } else { 641 #ifdef DIAGNOSTIC 642 if (sc->sc_suspend == PWR_RESUME) 643 printf("uhci_power: weird, resume without suspend.\n"); 644 #endif 645 sc->sc_bus.use_polling++; 646 sc->sc_suspend = why; 647 if (cmd & UHCI_CMD_RS) 648 uhci_run(sc, 0); /* in case BIOS has started it */ 649 650 /* restore saved state */ 651 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 652 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 653 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 654 655 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 656 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 657 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 658 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 659 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 660 uhci_run(sc, 1); /* and start traffic again */ 661 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 662 sc->sc_bus.use_polling--; 663 if (sc->sc_has_timo != NULL) 664 usb_callout(sc->sc_has_timo->timo_handle, sc->sc_ival, 665 uhci_timo, sc->sc_has_timo); 666 #ifdef UHCI_DEBUG 667 if (uhcidebug > 2) 668 uhci_dumpregs(sc); 669 #endif 670 } 671 splx(s); 672 } 673 674 #ifdef UHCI_DEBUG 675 static void 676 uhci_dumpregs(sc) 677 uhci_softc_t *sc; 678 { 679 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 680 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 681 USBDEVNAME(sc->sc_bus.bdev), 682 UREAD2(sc, UHCI_CMD), 683 UREAD2(sc, UHCI_STS), 684 UREAD2(sc, UHCI_INTR), 685 UREAD2(sc, UHCI_FRNUM), 686 UREAD4(sc, UHCI_FLBASEADDR), 687 UREAD1(sc, UHCI_SOF), 688 UREAD2(sc, UHCI_PORTSC1), 689 UREAD2(sc, UHCI_PORTSC2))); 690 } 691 692 void 693 uhci_dump_td(p) 694 uhci_soft_td_t *p; 695 { 696 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 697 "token=0x%08lx buffer=0x%08lx\n", 698 p, (long)p->physaddr, 699 (long)le32toh(p->td.td_link), 700 (long)le32toh(p->td.td_status), 701 (long)le32toh(p->td.td_token), 702 (long)le32toh(p->td.td_buffer))); 703 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 704 "D=%d,maxlen=%d\n", 705 (int)le32toh(p->td.td_link), 706 "\20\1T\2Q\3VF", 707 (int)le32toh(p->td.td_status), 708 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 709 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 710 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 711 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 712 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 713 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 714 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 715 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 716 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 717 } 718 719 void 720 uhci_dump_qh(sqh) 721 uhci_soft_qh_t *sqh; 722 { 723 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 724 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 725 le32toh(sqh->qh.qh_elink))); 726 } 727 728 729 #if 0 730 void 731 uhci_dump() 732 { 733 uhci_softc_t *sc = thesc; 734 735 uhci_dumpregs(sc); 736 printf("intrs=%d\n", sc->sc_bus.no_intrs); 737 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 738 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 739 } 740 #endif 741 742 743 void 744 uhci_dump_qhs(sqh) 745 uhci_soft_qh_t *sqh; 746 { 747 uhci_dump_qh(sqh); 748 749 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 750 * Traverses sideways first, then down. 751 * 752 * QH1 753 * QH2 754 * No QH 755 * TD2.1 756 * TD2.2 757 * TD1.1 758 * etc. 759 * 760 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 761 */ 762 763 764 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 765 uhci_dump_qhs(sqh->hlink); 766 else 767 DPRINTF(("No QH\n")); 768 769 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 770 uhci_dump_tds(sqh->elink); 771 else 772 DPRINTF(("No TD\n")); 773 } 774 775 void 776 uhci_dump_tds(std) 777 uhci_soft_td_t *std; 778 { 779 uhci_soft_td_t *td; 780 781 for(td = std; td != NULL; td = td->link.std) { 782 uhci_dump_td(td); 783 784 /* Check whether the link pointer in this TD marks 785 * the link pointer as end of queue. This avoids 786 * printing the free list in case the queue/TD has 787 * already been moved there (seatbelt). 788 */ 789 if (le32toh(td->td.td_link) & UHCI_PTR_T || 790 le32toh(td->td.td_link) == 0) 791 break; 792 } 793 } 794 795 void uhci_dump_ii(uhci_intr_info_t *ii); 796 void 797 uhci_dump_ii(ii) 798 uhci_intr_info_t *ii; 799 { 800 usbd_pipe_handle pipe = ii->xfer->pipe; 801 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 802 usbd_device_handle dev = pipe->device; 803 804 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 805 ii, ii->isdone, ii->xfer, dev, 806 UGETW(dev->ddesc.idVendor), 807 UGETW(dev->ddesc.idProduct), 808 dev->address, pipe, 809 ed->bEndpointAddress, ed->bmAttributes); 810 } 811 812 void uhci_dump_iis(struct uhci_softc *); 813 void 814 uhci_dump_iis(sc) 815 struct uhci_softc *sc; 816 { 817 uhci_intr_info_t *ii; 818 819 printf("intr_info list:\n"); 820 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 821 uhci_dump_ii(ii); 822 } 823 824 void iidump(void); 825 void iidump() { uhci_dump_iis(thesc); } 826 827 #endif 828 829 /* 830 * This routine is executed periodically and simulates interrupts 831 * from the root controller interrupt pipe for port status change. 832 */ 833 void 834 uhci_timo(addr) 835 void *addr; 836 { 837 usbd_xfer_handle xfer = addr; 838 usbd_pipe_handle pipe = xfer->pipe; 839 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 840 int s; 841 u_char *p; 842 843 DPRINTFN(20, ("uhci_timo\n")); 844 845 usb_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 846 847 p = KERNADDR(&xfer->dmabuf); 848 p[0] = 0; 849 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 850 p[0] |= 1<<1; 851 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 852 p[0] |= 1<<2; 853 if (p[0] == 0) 854 /* No change, try again in a while */ 855 return; 856 857 xfer->actlen = 1; 858 xfer->status = USBD_NORMAL_COMPLETION; 859 s = splusb(); 860 xfer->device->bus->intr_context++; 861 usb_transfer_complete(xfer); 862 xfer->device->bus->intr_context--; 863 splx(s); 864 } 865 866 void 867 uhci_root_intr_done(xfer) 868 usbd_xfer_handle xfer; 869 { 870 } 871 872 void 873 uhci_root_ctrl_done(xfer) 874 usbd_xfer_handle xfer; 875 { 876 } 877 878 /* Add control QH, called at splusb(). */ 879 void 880 uhci_add_ctrl(sc, sqh) 881 uhci_softc_t *sc; 882 uhci_soft_qh_t *sqh; 883 { 884 uhci_soft_qh_t *eqh; 885 886 SPLUSBCHECK; 887 888 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 889 eqh = sc->sc_ctl_end; 890 sqh->hlink = eqh->hlink; 891 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 892 eqh->hlink = sqh; 893 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 894 sc->sc_ctl_end = sqh; 895 } 896 897 /* Remove control QH, called at splusb(). */ 898 void 899 uhci_remove_ctrl(sc, sqh) 900 uhci_softc_t *sc; 901 uhci_soft_qh_t *sqh; 902 { 903 uhci_soft_qh_t *pqh; 904 905 SPLUSBCHECK; 906 907 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 908 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 909 pqh->hlink = sqh->hlink; 910 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 911 if (sc->sc_ctl_end == sqh) 912 sc->sc_ctl_end = pqh; 913 } 914 915 /* Add bulk QH, called at splusb(). */ 916 void 917 uhci_add_bulk(sc, sqh) 918 uhci_softc_t *sc; 919 uhci_soft_qh_t *sqh; 920 { 921 uhci_soft_qh_t *eqh; 922 923 SPLUSBCHECK; 924 925 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 926 eqh = sc->sc_bulk_end; 927 sqh->hlink = eqh->hlink; 928 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 929 eqh->hlink = sqh; 930 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 931 sc->sc_bulk_end = sqh; 932 } 933 934 void fooo(void); 935 void fooo() { } 936 937 /* Remove bulk QH, called at splusb(). */ 938 void 939 uhci_remove_bulk(sc, sqh) 940 uhci_softc_t *sc; 941 uhci_soft_qh_t *sqh; 942 { 943 uhci_soft_qh_t *pqh; 944 945 SPLUSBCHECK; 946 947 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 948 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 949 pqh->hlink = sqh->hlink; 950 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 951 if (sc->sc_bulk_end == sqh) 952 sc->sc_bulk_end = pqh; 953 } 954 955 int 956 uhci_intr(arg) 957 void *arg; 958 { 959 uhci_softc_t *sc = arg; 960 int status; 961 int ack; 962 963 #ifdef UHCI_DEBUG 964 if (uhcidebug > 15) { 965 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 966 uhci_dumpregs(sc); 967 } 968 #endif 969 970 status = UREAD2(sc, UHCI_STS); 971 if (status == 0) /* The interrupt was not for us. */ 972 return (0); 973 974 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 975 if (sc->sc_suspend != PWR_RESUME) 976 printf("uhci_intr: suspended sts=0x%x\n", status); 977 #endif 978 979 ack = 0; 980 if (status & UHCI_STS_USBINT) 981 ack |= UHCI_STS_USBINT; 982 if (status & UHCI_STS_USBEI) 983 ack |= UHCI_STS_USBEI; 984 if (status & UHCI_STS_RD) { 985 ack |= UHCI_STS_RD; 986 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 987 } 988 if (status & UHCI_STS_HSE) { 989 ack |= UHCI_STS_HSE; 990 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 991 } 992 if (status & UHCI_STS_HCPE) { 993 ack |= UHCI_STS_HCPE; 994 printf("%s: host controller process error\n", 995 USBDEVNAME(sc->sc_bus.bdev)); 996 } 997 if (status & UHCI_STS_HCH) { 998 /* no acknowledge needed */ 999 printf("%s: host controller halted\n", 1000 USBDEVNAME(sc->sc_bus.bdev)); 1001 sc->sc_dying = 1; 1002 fooo(); 1003 } 1004 1005 if (ack) /* acknowledge the ints */ 1006 UWRITE2(sc, UHCI_STS, ack); 1007 else /* nothing to acknowledge */ 1008 return (0); 1009 1010 sc->sc_bus.no_intrs++; 1011 usb_schedsoftintr(&sc->sc_bus); 1012 1013 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1014 1015 return (1); 1016 } 1017 1018 void 1019 uhci_softintr(bus) 1020 struct usbd_bus *bus; 1021 { 1022 uhci_softc_t *sc = (uhci_softc_t *)bus; 1023 uhci_intr_info_t *ii; 1024 1025 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1026 1027 sc->sc_bus.intr_context++; 1028 1029 /* 1030 * Interrupts on UHCI really suck. When the host controller 1031 * interrupts because a transfer is completed there is no 1032 * way of knowing which transfer it was. You can scan down 1033 * the TDs and QHs of the previous frame to limit the search, 1034 * but that assumes that the interrupt was not delayed by more 1035 * than 1 ms, which may not always be true (e.g. after debug 1036 * output on a slow console). 1037 * We scan all interrupt descriptors to see if any have 1038 * completed. 1039 */ 1040 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1041 uhci_check_intr(sc, ii); 1042 1043 sc->sc_bus.intr_context--; 1044 } 1045 1046 /* Check for an interrupt. */ 1047 void 1048 uhci_check_intr(sc, ii) 1049 uhci_softc_t *sc; 1050 uhci_intr_info_t *ii; 1051 { 1052 uhci_soft_td_t *std, *lstd; 1053 u_int32_t status; 1054 1055 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1056 #ifdef DIAGNOSTIC 1057 if (ii == NULL) { 1058 printf("uhci_check_intr: no ii? %p\n", ii); 1059 return; 1060 } 1061 #endif 1062 if (ii->stdstart == NULL) 1063 return; 1064 lstd = ii->stdend; 1065 #ifdef DIAGNOSTIC 1066 if (lstd == NULL) { 1067 printf("uhci_check_intr: std==0\n"); 1068 return; 1069 } 1070 #endif 1071 /* 1072 * If the last TD is still active we need to check whether there 1073 * is a an error somewhere in the middle, or whether there was a 1074 * short packet (SPD and not ACTIVE). 1075 */ 1076 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1077 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1078 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1079 status = le32toh(std->td.td_status); 1080 /* If there's an active TD the xfer isn't done. */ 1081 if (status & UHCI_TD_ACTIVE) 1082 break; 1083 /* Any kind of error makes the xfer done. */ 1084 if (status & UHCI_TD_STALLED) 1085 goto done; 1086 /* We want short packets, and it is short: it's done */ 1087 if ((status & UHCI_TD_SPD) && 1088 UHCI_TD_GET_ACTLEN(status) < 1089 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1090 goto done; 1091 } 1092 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1093 ii, ii->stdstart)); 1094 return; 1095 } 1096 done: 1097 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1098 usb_uncallout(ii->timeout_handle, uhci_timeout, ii); 1099 uhci_idone(ii); 1100 } 1101 1102 /* Called at splusb() */ 1103 void 1104 uhci_idone(ii) 1105 uhci_intr_info_t *ii; 1106 { 1107 usbd_xfer_handle xfer = ii->xfer; 1108 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1109 uhci_soft_td_t *std; 1110 u_int32_t status = 0, nstatus; 1111 int actlen; 1112 1113 #ifdef DIAGNOSTIC 1114 { 1115 int s = splhigh(); 1116 if (ii->isdone) { 1117 splx(s); 1118 #ifdef UHCI_DEBUG 1119 printf("uhci_idone: ii is done!\n "); 1120 uhci_dump_ii(ii); 1121 #else 1122 printf("uhci_idone: ii=%p is done!\n", ii); 1123 #endif 1124 return; 1125 } 1126 ii->isdone = 1; 1127 splx(s); 1128 } 1129 #endif 1130 1131 if (xfer->status == USBD_CANCELLED || 1132 xfer->status == USBD_TIMEOUT) { 1133 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1134 return; 1135 } 1136 1137 if (xfer->nframes != 0) { 1138 /* Isoc transfer, do things differently. */ 1139 uhci_soft_td_t **stds = upipe->u.iso.stds; 1140 int i, n, nframes; 1141 1142 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1143 1144 nframes = xfer->nframes; 1145 actlen = 0; 1146 n = UXFER(xfer)->curframe; 1147 for (i = 0; i < nframes; i++) { 1148 std = stds[n]; 1149 #ifdef UHCI_DEBUG 1150 if (uhcidebug > 5) { 1151 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1152 uhci_dump_td(std); 1153 } 1154 #endif 1155 if (++n >= UHCI_VFRAMELIST_COUNT) 1156 n = 0; 1157 status = le32toh(std->td.td_status); 1158 actlen += UHCI_TD_GET_ACTLEN(status); 1159 } 1160 upipe->u.iso.inuse -= nframes; 1161 xfer->actlen = actlen; 1162 xfer->status = USBD_NORMAL_COMPLETION; 1163 usb_transfer_complete(xfer); 1164 return; 1165 } 1166 1167 #ifdef UHCI_DEBUG 1168 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1169 ii, xfer, upipe)); 1170 if (uhcidebug > 10) 1171 uhci_dump_tds(ii->stdstart); 1172 #endif 1173 1174 /* The transfer is done, compute actual length and status. */ 1175 actlen = 0; 1176 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1177 nstatus = le32toh(std->td.td_status); 1178 if (nstatus & UHCI_TD_ACTIVE) 1179 break; 1180 1181 status = nstatus; 1182 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1183 UHCI_TD_PID_SETUP) 1184 actlen += UHCI_TD_GET_ACTLEN(status); 1185 } 1186 /* If there are left over TDs we need to update the toggle. */ 1187 if (std != NULL) 1188 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1189 1190 status &= UHCI_TD_ERROR; 1191 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1192 actlen, status)); 1193 xfer->actlen = actlen; 1194 if (status != 0) { 1195 DPRINTFN((status == UHCI_TD_STALLED)*10, 1196 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1197 "status 0x%b\n", 1198 xfer->pipe->device->address, 1199 xfer->pipe->endpoint->edesc->bEndpointAddress, 1200 (int)status, 1201 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1202 "STALLED\30ACTIVE")); 1203 if (status == UHCI_TD_STALLED) 1204 xfer->status = USBD_STALLED; 1205 else 1206 xfer->status = USBD_IOERROR; /* more info XXX */ 1207 } else { 1208 xfer->status = USBD_NORMAL_COMPLETION; 1209 } 1210 usb_transfer_complete(xfer); 1211 } 1212 1213 /* 1214 * Called when a request does not complete. 1215 */ 1216 void 1217 uhci_timeout(addr) 1218 void *addr; 1219 { 1220 uhci_intr_info_t *ii = addr; 1221 1222 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1223 1224 #ifdef UHCI_DEBUG 1225 if (uhcidebug > 10) 1226 uhci_dump_tds(ii->stdstart); 1227 #endif 1228 1229 ii->xfer->device->bus->intr_context++; 1230 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1231 ii->xfer->device->bus->intr_context--; 1232 } 1233 1234 /* 1235 * Wait here until controller claims to have an interrupt. 1236 * Then call uhci_intr and return. Use timeout to avoid waiting 1237 * too long. 1238 * Only used during boot when interrupts are not enabled yet. 1239 */ 1240 void 1241 uhci_waitintr(sc, xfer) 1242 uhci_softc_t *sc; 1243 usbd_xfer_handle xfer; 1244 { 1245 int timo = xfer->timeout; 1246 uhci_intr_info_t *ii; 1247 1248 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1249 1250 xfer->status = USBD_IN_PROGRESS; 1251 for (; timo >= 0; timo--) { 1252 usb_delay_ms(&sc->sc_bus, 1); 1253 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1254 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1255 uhci_intr(sc); 1256 if (xfer->status != USBD_IN_PROGRESS) 1257 return; 1258 } 1259 } 1260 1261 /* Timeout */ 1262 DPRINTF(("uhci_waitintr: timeout\n")); 1263 for (ii = LIST_FIRST(&sc->sc_intrhead); 1264 ii != NULL && ii->xfer != xfer; 1265 ii = LIST_NEXT(ii, list)) 1266 ; 1267 #ifdef DIAGNOSTIC 1268 if (ii == NULL) 1269 panic("uhci_waitintr: lost intr_info\n"); 1270 #endif 1271 uhci_idone(ii); 1272 } 1273 1274 void 1275 uhci_poll(bus) 1276 struct usbd_bus *bus; 1277 { 1278 uhci_softc_t *sc = (uhci_softc_t *)bus; 1279 1280 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1281 uhci_intr(sc); 1282 } 1283 1284 #if 0 1285 void 1286 uhci_reset(sc) 1287 uhci_softc_t *sc; 1288 { 1289 int n; 1290 1291 UHCICMD(sc, UHCI_CMD_HCRESET); 1292 /* The reset bit goes low when the controller is done. */ 1293 for (n = 0; n < UHCI_RESET_TIMEOUT && 1294 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1295 usb_delay_ms(&sc->sc_bus, 1); 1296 if (n >= UHCI_RESET_TIMEOUT) 1297 printf("%s: controller did not reset\n", 1298 USBDEVNAME(sc->sc_bus.bdev)); 1299 } 1300 #endif 1301 1302 usbd_status 1303 uhci_run(sc, run) 1304 uhci_softc_t *sc; 1305 int run; 1306 { 1307 int s, n, running; 1308 u_int16_t cmd; 1309 1310 run = run != 0; 1311 s = splusb(); 1312 DPRINTF(("uhci_run: setting run=%d\n", run)); 1313 cmd = UREAD2(sc, UHCI_CMD); 1314 if (run) 1315 cmd |= UHCI_CMD_RS; 1316 else 1317 cmd &= ~UHCI_CMD_RS; 1318 UHCICMD(sc, cmd); 1319 for(n = 0; n < 10; n++) { 1320 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1321 /* return when we've entered the state we want */ 1322 if (run == running) { 1323 splx(s); 1324 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1325 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1326 return (USBD_NORMAL_COMPLETION); 1327 } 1328 usb_delay_ms(&sc->sc_bus, 1); 1329 } 1330 splx(s); 1331 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1332 run ? "start" : "stop"); 1333 return (USBD_IOERROR); 1334 } 1335 1336 /* 1337 * Memory management routines. 1338 * uhci_alloc_std allocates TDs 1339 * uhci_alloc_sqh allocates QHs 1340 * These two routines do their own free list management, 1341 * partly for speed, partly because allocating DMAable memory 1342 * has page size granularaity so much memory would be wasted if 1343 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1344 */ 1345 1346 uhci_soft_td_t * 1347 uhci_alloc_std(sc) 1348 uhci_softc_t *sc; 1349 { 1350 uhci_soft_td_t *std; 1351 usbd_status err; 1352 int i, offs; 1353 usb_dma_t dma; 1354 1355 if (sc->sc_freetds == NULL) { 1356 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1357 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1358 UHCI_TD_ALIGN, &dma); 1359 if (err) 1360 return (0); 1361 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1362 offs = i * UHCI_STD_SIZE; 1363 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1364 std->physaddr = DMAADDR(&dma) + offs; 1365 std->link.std = sc->sc_freetds; 1366 sc->sc_freetds = std; 1367 } 1368 } 1369 std = sc->sc_freetds; 1370 sc->sc_freetds = std->link.std; 1371 memset(&std->td, 0, sizeof(uhci_td_t)); 1372 return std; 1373 } 1374 1375 void 1376 uhci_free_std(sc, std) 1377 uhci_softc_t *sc; 1378 uhci_soft_td_t *std; 1379 { 1380 #ifdef DIAGNOSTIC 1381 #define TD_IS_FREE 0x12345678 1382 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1383 printf("uhci_free_std: freeing free TD %p\n", std); 1384 return; 1385 } 1386 std->td.td_token = htole32(TD_IS_FREE); 1387 #endif 1388 std->link.std = sc->sc_freetds; 1389 sc->sc_freetds = std; 1390 } 1391 1392 uhci_soft_qh_t * 1393 uhci_alloc_sqh(sc) 1394 uhci_softc_t *sc; 1395 { 1396 uhci_soft_qh_t *sqh; 1397 usbd_status err; 1398 int i, offs; 1399 usb_dma_t dma; 1400 1401 if (sc->sc_freeqhs == NULL) { 1402 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1403 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1404 UHCI_QH_ALIGN, &dma); 1405 if (err) 1406 return (0); 1407 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1408 offs = i * UHCI_SQH_SIZE; 1409 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1410 sqh->physaddr = DMAADDR(&dma) + offs; 1411 sqh->hlink = sc->sc_freeqhs; 1412 sc->sc_freeqhs = sqh; 1413 } 1414 } 1415 sqh = sc->sc_freeqhs; 1416 sc->sc_freeqhs = sqh->hlink; 1417 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1418 return (sqh); 1419 } 1420 1421 void 1422 uhci_free_sqh(sc, sqh) 1423 uhci_softc_t *sc; 1424 uhci_soft_qh_t *sqh; 1425 { 1426 sqh->hlink = sc->sc_freeqhs; 1427 sc->sc_freeqhs = sqh; 1428 } 1429 1430 void 1431 uhci_free_std_chain(sc, std, stdend) 1432 uhci_softc_t *sc; 1433 uhci_soft_td_t *std; 1434 uhci_soft_td_t *stdend; 1435 { 1436 uhci_soft_td_t *p; 1437 1438 for (; std != stdend; std = p) { 1439 p = std->link.std; 1440 uhci_free_std(sc, std); 1441 } 1442 } 1443 1444 usbd_status 1445 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1446 struct uhci_pipe *upipe; 1447 uhci_softc_t *sc; 1448 int len, rd; 1449 u_int16_t flags; 1450 usb_dma_t *dma; 1451 uhci_soft_td_t **sp, **ep; 1452 { 1453 uhci_soft_td_t *p, *lastp; 1454 uhci_physaddr_t lastlink; 1455 int i, ntd, l, tog, maxp; 1456 u_int32_t status; 1457 int addr = upipe->pipe.device->address; 1458 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1459 1460 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1461 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1462 upipe->pipe.device->lowspeed, flags)); 1463 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1464 if (maxp == 0) { 1465 printf("uhci_alloc_std_chain: maxp=0\n"); 1466 return (USBD_INVAL); 1467 } 1468 ntd = (len + maxp - 1) / maxp; 1469 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1470 ntd++; 1471 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1472 if (ntd == 0) { 1473 *sp = *ep = 0; 1474 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1475 return (USBD_NORMAL_COMPLETION); 1476 } 1477 tog = upipe->nexttoggle; 1478 if (ntd % 2 == 0) 1479 tog ^= 1; 1480 upipe->nexttoggle = tog ^ 1; 1481 lastp = 0; 1482 lastlink = UHCI_PTR_T; 1483 ntd--; 1484 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1485 if (upipe->pipe.device->lowspeed) 1486 status |= UHCI_TD_LS; 1487 if (flags & USBD_SHORT_XFER_OK) 1488 status |= UHCI_TD_SPD; 1489 for (i = ntd; i >= 0; i--) { 1490 p = uhci_alloc_std(sc); 1491 if (p == NULL) { 1492 uhci_free_std_chain(sc, lastp, 0); 1493 return (USBD_NOMEM); 1494 } 1495 p->link.std = lastp; 1496 if (lastlink == UHCI_PTR_T) 1497 p->td.td_link = htole32(lastlink); 1498 else 1499 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1500 lastp = p; 1501 lastlink = p->physaddr; 1502 p->td.td_status = htole32(status); 1503 if (i == ntd) { 1504 /* last TD */ 1505 l = len % maxp; 1506 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1507 l = maxp; 1508 *ep = p; 1509 } else 1510 l = maxp; 1511 p->td.td_token = 1512 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1513 UHCI_TD_OUT(l, endpt, addr, tog)); 1514 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1515 tog ^= 1; 1516 } 1517 *sp = lastp; 1518 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1519 upipe->nexttoggle)); 1520 return (USBD_NORMAL_COMPLETION); 1521 } 1522 1523 void 1524 uhci_device_clear_toggle(pipe) 1525 usbd_pipe_handle pipe; 1526 { 1527 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1528 upipe->nexttoggle = 0; 1529 } 1530 1531 void 1532 uhci_noop(pipe) 1533 usbd_pipe_handle pipe; 1534 { 1535 } 1536 1537 usbd_status 1538 uhci_device_bulk_transfer(xfer) 1539 usbd_xfer_handle xfer; 1540 { 1541 usbd_status err; 1542 1543 /* Insert last in queue. */ 1544 err = usb_insert_transfer(xfer); 1545 if (err) 1546 return (err); 1547 1548 /* 1549 * Pipe isn't running (otherwise err would be USBD_INPROG), 1550 * so start it first. 1551 */ 1552 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1553 } 1554 1555 usbd_status 1556 uhci_device_bulk_start(xfer) 1557 usbd_xfer_handle xfer; 1558 { 1559 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1560 usbd_device_handle dev = upipe->pipe.device; 1561 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1562 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1563 uhci_soft_td_t *data, *dataend; 1564 uhci_soft_qh_t *sqh; 1565 usbd_status err; 1566 int len, isread, endpt; 1567 int s; 1568 1569 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1570 xfer, xfer->length, xfer->flags)); 1571 1572 if (sc->sc_dying) 1573 return (USBD_IOERROR); 1574 1575 #ifdef DIAGNOSTIC 1576 if (xfer->rqflags & URQ_REQUEST) 1577 panic("uhci_device_bulk_transfer: a request\n"); 1578 #endif 1579 1580 len = xfer->length; 1581 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1582 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1583 sqh = upipe->u.bulk.sqh; 1584 1585 upipe->u.bulk.isread = isread; 1586 upipe->u.bulk.length = len; 1587 1588 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1589 &xfer->dmabuf, &data, &dataend); 1590 if (err) 1591 return (err); 1592 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1593 1594 #ifdef UHCI_DEBUG 1595 if (uhcidebug > 8) { 1596 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1597 uhci_dump_tds(data); 1598 } 1599 #endif 1600 1601 /* Set up interrupt info. */ 1602 ii->xfer = xfer; 1603 ii->stdstart = data; 1604 ii->stdend = dataend; 1605 usb_callout_init(ii->timeout_handle); 1606 #ifdef DIAGNOSTIC 1607 if (!ii->isdone) { 1608 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1609 } 1610 ii->isdone = 0; 1611 #endif 1612 1613 sqh->elink = data; 1614 sqh->qh.qh_elink = htole32(data->physaddr); 1615 1616 s = splusb(); 1617 uhci_add_bulk(sc, sqh); 1618 uhci_add_intr_info(sc, ii); 1619 1620 if (xfer->timeout && !sc->sc_bus.use_polling) { 1621 usb_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 1622 uhci_timeout, ii); 1623 } 1624 xfer->status = USBD_IN_PROGRESS; 1625 splx(s); 1626 1627 #ifdef UHCI_DEBUG 1628 if (uhcidebug > 10) { 1629 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1630 uhci_dump_tds(data); 1631 } 1632 #endif 1633 1634 if (sc->sc_bus.use_polling) 1635 uhci_waitintr(sc, xfer); 1636 1637 return (USBD_IN_PROGRESS); 1638 } 1639 1640 /* Abort a device bulk request. */ 1641 void 1642 uhci_device_bulk_abort(xfer) 1643 usbd_xfer_handle xfer; 1644 { 1645 DPRINTF(("uhci_device_bulk_abort:\n")); 1646 uhci_abort_xfer(xfer, USBD_CANCELLED); 1647 } 1648 1649 /* 1650 * Aborting a xfer on the UHCI host controller is tricky. 1651 * The problem is that the HC can asynchronously manipulate 1652 * the very fields in the QH and TD that we need to abort a 1653 * xfer. 1654 * The problematic field are qh_elink (which points to the first 1655 * TD) and td_status which contains the active flag. 1656 * 1657 * Here's my current (convoluted) strategy: 1658 * - Block HC interrupt. We need this to check if the xfer 1659 * might already be over. If called outside splusb() this can 1660 * happen. 1661 * - Check if an abort is already in progress (see below), if so 1662 * just link out the xfer, run the callback, and return. 1663 * - Otherwise, flag that abort is in progress. 1664 * - Remove the QH for the xfer from the list of QHs (this 1665 * can be done safely). 1666 * - Remove the transaction from the list of transactions examined 1667 * when the HC interrupts. 1668 * At this point we know that the transaction will never be considered 1669 * by the interrupt routine. The trouble we have is that the HC might 1670 * be following the chain of TDs rooted at the unlinked QH because it 1671 * started before the unlink. 1672 * We would like to run the xfer callback function at this point 1673 * to inform it that the xfer has been aborted, but running the 1674 * callback might result in freeing the xfer. This would be bad 1675 * since the HC might still use it. So we need to avoid this by: 1676 * - Disable the active flag in all TD belonging to the xfer. 1677 * If we do this we can guarantee that the HC will execute at most one 1678 * TD after we turn off the flag in the last TD. 1679 * - Busy-wait until the HC has finished with the TD. We do this by 1680 * keeping track of the longest TD and using delay() for the time it 1681 * takes to complete it (one byte takes a little less than 1 (LS 6) us). 1682 * - Run the callback routine, since at this point the HC can not be 1683 * using any TDs in the xfer. 1684 * We still cannot manipulate the qh_elink field in the QH since the 1685 * HC might be following TDs further down the chain for another 1 ms. 1686 * So... 1687 * - Set up a timeout 1 ms into the future. 1688 * - Turn on interrupts. 1689 * - Return. 1690 * 1691 * When the timeout happens we do the following: 1692 * - Check if the qh_elink field points anywhere in the TD chain we had 1693 * when the timeout was set up. If it is, leave qh_elink alone, 1694 * otherwise set qh_elink pointing to the next (if any) xfer in 1695 * the TD chain. 1696 * - Link the QH back where we got it. 1697 * - Turn off flag about abort in progress. 1698 * Done! 1699 * 1700 * The timeout is associated with the pipe and it must be cancelled if 1701 * the pipe is closed. 1702 */ 1703 1704 void 1705 uhci_abort_xfer(xfer, status) 1706 usbd_xfer_handle xfer; 1707 usbd_status status; 1708 { 1709 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1710 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1711 uhci_soft_td_t *std; 1712 int s; 1713 int len, maxlen; 1714 1715 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, xfer->status=%d, status=%d\n", 1716 xfer, xfer->status, status)); 1717 1718 s = splusb(); 1719 1720 /* Transfer is already done. */ 1721 if (xfer->status != USBD_NOT_STARTED && 1722 xfer->status != USBD_IN_PROGRESS) { 1723 splx(s); 1724 return; 1725 } 1726 1727 /* Give xfer the requested abort code. */ 1728 xfer->status = status; 1729 1730 /* If already aborting, bail out early. */ 1731 if (upipe->aborting) { 1732 /* Unlink the xfer from HC */ 1733 /*XXX only one xfer for now*/ 1734 printf("uhci_abort_xfer: abort while aborting\n"); 1735 /* Finalize xfer. */ 1736 usb_transfer_complete(xfer); 1737 splx(s); 1738 return; 1739 } 1740 1741 upipe->aborting = 1; 1742 upipe->abortstart = SIMPLEQ_NEXT(xfer, next); 1743 upipe->abortend = NULL; /* XXX only one xfer for now */ 1744 1745 /* Remove QH(s) from HC schedule. */ 1746 uhci_abort_unlink_qh(upipe); 1747 1748 /* Remove intr_info from list is done by usb_transfer_complete() .*/ 1749 1750 /* Disable active bit. */ 1751 maxlen = 0; 1752 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1753 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1754 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 1755 if (len > maxlen) 1756 maxlen = len; 1757 } 1758 /* compute delay in us */ 1759 if (upipe->pipe.device->lowspeed) 1760 maxlen *= 6; 1761 /* wait for HC to complete TDs */ 1762 delay(maxlen); 1763 1764 /* Run callback and remove from interrupt list. */ 1765 usb_transfer_complete(xfer); 1766 1767 /* Don't timeout, */ 1768 usb_uncallout(ii->timeout_handle, uhci_timeout, ii); 1769 1770 /* Set up final processing. */ 1771 usb_callout(upipe->abort_timeout, hz / USB_FRAMES_PER_SECOND, 1772 uhci_abort_xfer_end, upipe); 1773 1774 /* And return. */ 1775 splx(s); 1776 } 1777 1778 void 1779 uhci_abort_xfer_end(v) 1780 void *v; 1781 { 1782 struct uhci_pipe *upipe = v; 1783 usbd_xfer_handle xf; 1784 uhci_soft_td_t *std; 1785 uhci_soft_qh_t *sqh, **qhs; 1786 int s; 1787 int i, nqhs; 1788 1789 DPRINTFN(5,("uhci_abort_xfer_end: upipe=%p\n", upipe)); 1790 1791 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1792 case UE_CONTROL: 1793 #if 0 1794 qhs = &upipe->u.ctl.sqh; 1795 nqhs = 1; 1796 #else 1797 /* only one ctl transfer; qh unlinked by usb_transfer_complete() */ 1798 nqhs = 0; 1799 #endif 1800 break; 1801 case UE_ISOCHRONOUS: 1802 printf("uhci_abort_xfer_end: iso\n"); 1803 nqhs = 0; 1804 break; 1805 case UE_BULK: 1806 qhs = &upipe->u.bulk.sqh; 1807 nqhs = 1; 1808 break; 1809 case UE_INTERRUPT: 1810 qhs = upipe->u.intr.qhs; 1811 nqhs = upipe->u.intr.npoll; 1812 break; 1813 } 1814 1815 s = splusb(); 1816 1817 for (i = 0; i < nqhs; i++) { 1818 sqh = qhs[i]; 1819 /* Check if inside remaining TD chain. */ 1820 for (xf = upipe->abortstart; xf != NULL; 1821 xf = SIMPLEQ_NEXT(xf, next)) { 1822 for (std = UXFER(xf)->iinfo.stdstart; std != NULL; 1823 std = std->link.std) { 1824 if (std->physaddr == le32toh(sqh->qh.qh_elink)) 1825 goto outside; 1826 } 1827 if (xf == upipe->abortend) 1828 break; 1829 } 1830 if (upipe->abortstart != NULL) { 1831 std = UXFER(upipe->abortstart)->iinfo.stdstart; 1832 DPRINTFN(5,("uhci_abort_xfer_end: new std=%p\n", std)); 1833 sqh->elink = std; 1834 sqh->qh.qh_elink = htole32(std->physaddr); 1835 } else { 1836 DPRINTFN(5,("uhci_abort_xfer_end: new std=NULL\n")); 1837 sqh->elink = NULL; 1838 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1839 } 1840 } 1841 1842 outside: 1843 1844 /* Insert QH again. */ 1845 uhci_abort_relink_qh(upipe); 1846 1847 /* No longer aborting */ 1848 upipe->aborting = 0; 1849 1850 splx(s); 1851 } 1852 1853 void 1854 uhci_abort_unlink_qh(upipe) 1855 struct uhci_pipe *upipe; 1856 { 1857 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1858 uhci_soft_qh_t *sqh, *pqh, **qhs; 1859 int i, npoll; 1860 1861 DPRINTFN(5,("uhci_abort_unlink_qh: sc=%p pipe=%p\n", sc, upipe)); 1862 1863 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1864 case UE_CONTROL: 1865 #if 0 1866 sqh = upipe->u.ctl.sqh; 1867 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1868 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1869 #endif 1870 break; 1871 case UE_ISOCHRONOUS: 1872 printf("uhci_abort_unlink_qh: iso\n"); 1873 break; 1874 case UE_BULK: 1875 sqh = upipe->u.bulk.sqh; 1876 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1877 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1878 break; 1879 case UE_INTERRUPT: 1880 npoll = upipe->u.intr.npoll; 1881 qhs = upipe->u.intr.qhs; 1882 for (i = 0; i < npoll; i++) { 1883 sqh = qhs[i]; 1884 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1885 sqh); 1886 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1887 } 1888 break; 1889 } 1890 } 1891 1892 void 1893 uhci_abort_relink_qh(upipe) 1894 struct uhci_pipe *upipe; 1895 { 1896 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1897 uhci_soft_qh_t *sqh, *pqh, **qhs; 1898 int i, npoll; 1899 1900 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1901 case UE_CONTROL: 1902 #if 0 1903 sqh = upipe->u.ctl.sqh; 1904 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1905 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1906 #endif 1907 break; 1908 case UE_ISOCHRONOUS: 1909 printf("uhci_abort_relink_qh: iso\n"); 1910 break; 1911 case UE_BULK: 1912 sqh = upipe->u.bulk.sqh; 1913 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1914 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1915 break; 1916 break; 1917 case UE_INTERRUPT: 1918 npoll = upipe->u.intr.npoll; 1919 qhs = upipe->u.intr.qhs; 1920 for (i = 0; i < npoll; i++) { 1921 sqh = qhs[i]; 1922 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1923 sqh); 1924 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1925 } 1926 break; 1927 } 1928 } 1929 1930 void 1931 uhci_cancel_abort(pipe) 1932 usbd_pipe_handle pipe; 1933 { 1934 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1935 int s; 1936 1937 s = splusb(); 1938 if (upipe->aborting) { 1939 usb_uncallout(upipe->abort_timeout, uhci_abort_xfer_end, upipe); 1940 upipe->aborting = 0; 1941 } 1942 splx(s); 1943 } 1944 1945 1946 /* Close a device bulk pipe. */ 1947 void 1948 uhci_device_bulk_close(pipe) 1949 usbd_pipe_handle pipe; 1950 { 1951 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1952 usbd_device_handle dev = upipe->pipe.device; 1953 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1954 1955 uhci_cancel_abort(pipe); 1956 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1957 } 1958 1959 usbd_status 1960 uhci_device_ctrl_transfer(xfer) 1961 usbd_xfer_handle xfer; 1962 { 1963 usbd_status err; 1964 1965 /* Insert last in queue. */ 1966 err = usb_insert_transfer(xfer); 1967 if (err) 1968 return (err); 1969 1970 /* 1971 * Pipe isn't running (otherwise err would be USBD_INPROG), 1972 * so start it first. 1973 */ 1974 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1975 } 1976 1977 usbd_status 1978 uhci_device_ctrl_start(xfer) 1979 usbd_xfer_handle xfer; 1980 { 1981 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1982 usbd_status err; 1983 1984 if (sc->sc_dying) 1985 return (USBD_IOERROR); 1986 1987 #ifdef DIAGNOSTIC 1988 if (!(xfer->rqflags & URQ_REQUEST)) 1989 panic("uhci_device_ctrl_transfer: not a request\n"); 1990 #endif 1991 1992 err = uhci_device_request(xfer); 1993 if (err) 1994 return (err); 1995 1996 if (sc->sc_bus.use_polling) 1997 uhci_waitintr(sc, xfer); 1998 return (USBD_IN_PROGRESS); 1999 } 2000 2001 usbd_status 2002 uhci_device_intr_transfer(xfer) 2003 usbd_xfer_handle xfer; 2004 { 2005 usbd_status err; 2006 2007 /* Insert last in queue. */ 2008 err = usb_insert_transfer(xfer); 2009 if (err) 2010 return (err); 2011 2012 /* 2013 * Pipe isn't running (otherwise err would be USBD_INPROG), 2014 * so start it first. 2015 */ 2016 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2017 } 2018 2019 usbd_status 2020 uhci_device_intr_start(xfer) 2021 usbd_xfer_handle xfer; 2022 { 2023 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2024 usbd_device_handle dev = upipe->pipe.device; 2025 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2026 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2027 uhci_soft_td_t *data, *dataend; 2028 uhci_soft_qh_t *sqh; 2029 usbd_status err; 2030 int i, s; 2031 2032 if (sc->sc_dying) 2033 return (USBD_IOERROR); 2034 2035 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2036 xfer, xfer->length, xfer->flags)); 2037 2038 #ifdef DIAGNOSTIC 2039 if (xfer->rqflags & URQ_REQUEST) 2040 panic("uhci_device_intr_transfer: a request\n"); 2041 #endif 2042 2043 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2044 &xfer->dmabuf, &data, &dataend); 2045 if (err) 2046 return (err); 2047 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2048 2049 #ifdef UHCI_DEBUG 2050 if (uhcidebug > 10) { 2051 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2052 uhci_dump_tds(data); 2053 uhci_dump_qh(upipe->u.intr.qhs[0]); 2054 } 2055 #endif 2056 2057 s = splusb(); 2058 /* Set up interrupt info. */ 2059 ii->xfer = xfer; 2060 ii->stdstart = data; 2061 ii->stdend = dataend; 2062 usb_callout_init(ii->timeout_handle); 2063 #ifdef DIAGNOSTIC 2064 if (!ii->isdone) { 2065 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2066 } 2067 ii->isdone = 0; 2068 #endif 2069 2070 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2071 upipe->u.intr.qhs[0])); 2072 for (i = 0; i < upipe->u.intr.npoll; i++) { 2073 sqh = upipe->u.intr.qhs[i]; 2074 sqh->elink = data; 2075 sqh->qh.qh_elink = htole32(data->physaddr); 2076 } 2077 uhci_add_intr_info(sc, ii); 2078 xfer->status = USBD_IN_PROGRESS; 2079 splx(s); 2080 2081 #ifdef UHCI_DEBUG 2082 if (uhcidebug > 10) { 2083 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2084 uhci_dump_tds(data); 2085 uhci_dump_qh(upipe->u.intr.qhs[0]); 2086 } 2087 #endif 2088 2089 return (USBD_IN_PROGRESS); 2090 } 2091 2092 /* Abort a device control request. */ 2093 void 2094 uhci_device_ctrl_abort(xfer) 2095 usbd_xfer_handle xfer; 2096 { 2097 DPRINTF(("uhci_device_ctrl_abort:\n")); 2098 uhci_abort_xfer(xfer, USBD_CANCELLED); 2099 } 2100 2101 /* Close a device control pipe. */ 2102 void 2103 uhci_device_ctrl_close(pipe) 2104 usbd_pipe_handle pipe; 2105 { 2106 uhci_cancel_abort(pipe); 2107 } 2108 2109 /* Abort a device interrupt request. */ 2110 void 2111 uhci_device_intr_abort(xfer) 2112 usbd_xfer_handle xfer; 2113 { 2114 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2115 if (xfer->pipe->intrxfer == xfer) { 2116 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2117 xfer->pipe->intrxfer = 0; 2118 } 2119 uhci_abort_xfer(xfer, USBD_CANCELLED); 2120 } 2121 2122 /* Close a device interrupt pipe. */ 2123 void 2124 uhci_device_intr_close(pipe) 2125 usbd_pipe_handle pipe; 2126 { 2127 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2128 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2129 int i, npoll; 2130 int s; 2131 2132 uhci_cancel_abort(pipe); 2133 2134 /* Unlink descriptors from controller data structures. */ 2135 npoll = upipe->u.intr.npoll; 2136 s = splusb(); 2137 for (i = 0; i < npoll; i++) 2138 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2139 splx(s); 2140 2141 /* 2142 * We now have to wait for any activity on the physical 2143 * descriptors to stop. 2144 */ 2145 usb_delay_ms(&sc->sc_bus, 2); 2146 2147 for(i = 0; i < npoll; i++) 2148 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2149 free(upipe->u.intr.qhs, M_USBHC); 2150 2151 /* XXX free other resources */ 2152 } 2153 2154 usbd_status 2155 uhci_device_request(xfer) 2156 usbd_xfer_handle xfer; 2157 { 2158 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2159 usb_device_request_t *req = &xfer->request; 2160 usbd_device_handle dev = upipe->pipe.device; 2161 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2162 int addr = dev->address; 2163 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2164 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2165 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2166 uhci_soft_qh_t *sqh; 2167 int len; 2168 u_int32_t ls; 2169 usbd_status err; 2170 int isread; 2171 int s; 2172 2173 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2174 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2175 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2176 UGETW(req->wIndex), UGETW(req->wLength), 2177 addr, endpt)); 2178 2179 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2180 isread = req->bmRequestType & UT_READ; 2181 len = UGETW(req->wLength); 2182 2183 setup = upipe->u.ctl.setup; 2184 stat = upipe->u.ctl.stat; 2185 sqh = upipe->u.ctl.sqh; 2186 2187 /* Set up data transaction */ 2188 if (len != 0) { 2189 upipe->nexttoggle = 1; 2190 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2191 &xfer->dmabuf, &data, &dataend); 2192 if (err) 2193 return (err); 2194 next = data; 2195 dataend->link.std = stat; 2196 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 2197 } else { 2198 next = stat; 2199 } 2200 upipe->u.ctl.length = len; 2201 2202 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2203 2204 setup->link.std = next; 2205 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 2206 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2207 UHCI_TD_ACTIVE); 2208 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2209 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2210 2211 stat->link.std = NULL; 2212 stat->td.td_link = htole32(UHCI_PTR_T); 2213 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2214 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2215 stat->td.td_token = 2216 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2217 UHCI_TD_IN (0, endpt, addr, 1)); 2218 stat->td.td_buffer = htole32(0); 2219 2220 #ifdef UHCI_DEBUG 2221 if (uhcidebug > 10) { 2222 DPRINTF(("uhci_device_request: before transfer\n")); 2223 uhci_dump_tds(setup); 2224 } 2225 #endif 2226 2227 /* Set up interrupt info. */ 2228 ii->xfer = xfer; 2229 ii->stdstart = setup; 2230 ii->stdend = stat; 2231 usb_callout_init(ii->timeout_handle); 2232 #ifdef DIAGNOSTIC 2233 if (!ii->isdone) { 2234 printf("uhci_device_request: not done, ii=%p\n", ii); 2235 } 2236 ii->isdone = 0; 2237 #endif 2238 2239 sqh->elink = setup; 2240 sqh->qh.qh_elink = htole32(setup->physaddr); 2241 2242 s = splusb(); 2243 uhci_add_ctrl(sc, sqh); 2244 uhci_add_intr_info(sc, ii); 2245 #ifdef UHCI_DEBUG 2246 if (uhcidebug > 12) { 2247 uhci_soft_td_t *std; 2248 uhci_soft_qh_t *xqh; 2249 uhci_soft_qh_t *sxqh; 2250 int maxqh = 0; 2251 uhci_physaddr_t link; 2252 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2253 for (std = sc->sc_vframes[0].htd, link = 0; 2254 (link & UHCI_PTR_Q) == 0; 2255 std = std->link.std) { 2256 link = le32toh(std->td.td_link); 2257 uhci_dump_td(std); 2258 } 2259 sxqh = (uhci_soft_qh_t *)std; 2260 uhci_dump_qh(sxqh); 2261 for (xqh = sxqh; 2262 xqh != NULL; 2263 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2264 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2265 uhci_dump_qh(xqh); 2266 } 2267 DPRINTF(("Enqueued QH:\n")); 2268 uhci_dump_qh(sqh); 2269 uhci_dump_tds(sqh->elink); 2270 } 2271 #endif 2272 if (xfer->timeout && !sc->sc_bus.use_polling) { 2273 usb_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 2274 uhci_timeout, ii); 2275 } 2276 xfer->status = USBD_IN_PROGRESS; 2277 splx(s); 2278 2279 return (USBD_NORMAL_COMPLETION); 2280 } 2281 2282 usbd_status 2283 uhci_device_isoc_transfer(xfer) 2284 usbd_xfer_handle xfer; 2285 { 2286 usbd_status err; 2287 2288 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2289 2290 /* Put it on our queue, */ 2291 err = usb_insert_transfer(xfer); 2292 2293 /* bail out on error, */ 2294 if (err && err != USBD_IN_PROGRESS) 2295 return (err); 2296 2297 /* XXX should check inuse here */ 2298 2299 /* insert into schedule, */ 2300 uhci_device_isoc_enter(xfer); 2301 2302 /* and put on interrupt list if the pipe wasn't running */ 2303 if (!err) 2304 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2305 2306 return (err); 2307 } 2308 2309 void 2310 uhci_device_isoc_enter(xfer) 2311 usbd_xfer_handle xfer; 2312 { 2313 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2314 usbd_device_handle dev = upipe->pipe.device; 2315 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2316 struct iso *iso = &upipe->u.iso; 2317 uhci_soft_td_t *std; 2318 u_int32_t buf, len, status; 2319 int s, i, next, nframes; 2320 2321 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2322 "nframes=%d\n", 2323 iso->inuse, iso->next, xfer, xfer->nframes)); 2324 2325 if (sc->sc_dying) 2326 return; 2327 2328 if (xfer->status == USBD_IN_PROGRESS) { 2329 /* This request has already been entered into the frame list */ 2330 /* XXX */ 2331 } 2332 2333 #ifdef DIAGNOSTIC 2334 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2335 printf("uhci_device_isoc_enter: overflow!\n"); 2336 #endif 2337 2338 next = iso->next; 2339 if (next == -1) { 2340 /* Not in use yet, schedule it a few frames ahead. */ 2341 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2342 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2343 } 2344 2345 xfer->status = USBD_IN_PROGRESS; 2346 UXFER(xfer)->curframe = next; 2347 2348 buf = DMAADDR(&xfer->dmabuf); 2349 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2350 UHCI_TD_ACTIVE | 2351 UHCI_TD_IOS); 2352 nframes = xfer->nframes; 2353 s = splusb(); 2354 for (i = 0; i < nframes; i++) { 2355 std = iso->stds[next]; 2356 if (++next >= UHCI_VFRAMELIST_COUNT) 2357 next = 0; 2358 len = xfer->frlengths[i]; 2359 std->td.td_buffer = htole32(buf); 2360 if (i == nframes - 1) 2361 status |= UHCI_TD_IOC; 2362 std->td.td_status = htole32(status); 2363 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2364 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2365 #ifdef UHCI_DEBUG 2366 if (uhcidebug > 5) { 2367 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2368 uhci_dump_td(std); 2369 } 2370 #endif 2371 buf += len; 2372 } 2373 iso->next = next; 2374 iso->inuse += xfer->nframes; 2375 2376 splx(s); 2377 } 2378 2379 usbd_status 2380 uhci_device_isoc_start(xfer) 2381 usbd_xfer_handle xfer; 2382 { 2383 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2384 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2385 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2386 uhci_soft_td_t *end; 2387 int s, i; 2388 2389 if (sc->sc_dying) 2390 return (USBD_IOERROR); 2391 2392 #ifdef DIAGNOSTIC 2393 if (xfer->status != USBD_IN_PROGRESS) 2394 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2395 #endif 2396 2397 /* Find the last TD */ 2398 i = UXFER(xfer)->curframe + xfer->nframes; 2399 if (i >= UHCI_VFRAMELIST_COUNT) 2400 i -= UHCI_VFRAMELIST_COUNT; 2401 end = upipe->u.iso.stds[i]; 2402 2403 s = splusb(); 2404 2405 /* Set up interrupt info. */ 2406 ii->xfer = xfer; 2407 ii->stdstart = end; 2408 ii->stdend = end; 2409 usb_callout_init(ii->timeout_handle); 2410 #ifdef DIAGNOSTIC 2411 if (!ii->isdone) { 2412 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2413 } 2414 ii->isdone = 0; 2415 #endif 2416 uhci_add_intr_info(sc, ii); 2417 2418 splx(s); 2419 2420 return (USBD_IN_PROGRESS); 2421 } 2422 2423 void 2424 uhci_device_isoc_abort(xfer) 2425 usbd_xfer_handle xfer; 2426 { 2427 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2428 uhci_soft_td_t **stds = upipe->u.iso.stds; 2429 uhci_soft_td_t *std; 2430 int i, n, s, nframes, maxlen, len; 2431 2432 s = splusb(); 2433 2434 /* Transfer is already done. */ 2435 if (xfer->status != USBD_NOT_STARTED && 2436 xfer->status != USBD_IN_PROGRESS) { 2437 splx(s); 2438 return; 2439 } 2440 2441 /* Give xfer the requested abort code. */ 2442 xfer->status = USBD_CANCELLED; 2443 2444 /* make hardware ignore it, */ 2445 nframes = xfer->nframes; 2446 n = UXFER(xfer)->curframe; 2447 maxlen = 0; 2448 for (i = 0; i < nframes; i++) { 2449 std = stds[n]; 2450 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2451 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 2452 if (len > maxlen) 2453 maxlen = len; 2454 if (++n >= UHCI_VFRAMELIST_COUNT) 2455 n = 0; 2456 } 2457 2458 /* and wait until we are sure the hardware has finished. */ 2459 delay(maxlen); 2460 2461 /* Run callback and remove from interrupt list. */ 2462 usb_transfer_complete(xfer); 2463 2464 splx(s); 2465 } 2466 2467 void 2468 uhci_device_isoc_close(pipe) 2469 usbd_pipe_handle pipe; 2470 { 2471 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2472 usbd_device_handle dev = upipe->pipe.device; 2473 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2474 uhci_soft_td_t *std, *vstd; 2475 struct iso *iso; 2476 int i, s; 2477 2478 /* 2479 * Make sure all TDs are marked as inactive. 2480 * Wait for completion. 2481 * Unschedule. 2482 * Deallocate. 2483 */ 2484 iso = &upipe->u.iso; 2485 2486 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2487 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2488 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2489 2490 s = splusb(); 2491 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2492 std = iso->stds[i]; 2493 for (vstd = sc->sc_vframes[i].htd; 2494 vstd != NULL && vstd->link.std != std; 2495 vstd = vstd->link.std) 2496 ; 2497 if (vstd == NULL) { 2498 /*panic*/ 2499 printf("uhci_device_isoc_close: %p not found\n", std); 2500 splx(s); 2501 return; 2502 } 2503 vstd->link = std->link; 2504 vstd->td.td_link = std->td.td_link; 2505 uhci_free_std(sc, std); 2506 } 2507 splx(s); 2508 2509 free(iso->stds, M_USBHC); 2510 } 2511 2512 usbd_status 2513 uhci_setup_isoc(pipe) 2514 usbd_pipe_handle pipe; 2515 { 2516 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2517 usbd_device_handle dev = upipe->pipe.device; 2518 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2519 int addr = upipe->pipe.device->address; 2520 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2521 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2522 uhci_soft_td_t *std, *vstd; 2523 u_int32_t token; 2524 struct iso *iso; 2525 int i, s; 2526 2527 iso = &upipe->u.iso; 2528 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2529 M_USBHC, M_WAITOK); 2530 2531 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2532 UHCI_TD_OUT(0, endpt, addr, 0); 2533 2534 /* Allocate the TDs and mark as inactive; */ 2535 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2536 std = uhci_alloc_std(sc); 2537 if (std == 0) 2538 goto bad; 2539 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2540 std->td.td_token = htole32(token); 2541 iso->stds[i] = std; 2542 } 2543 2544 /* Insert TDs into schedule. */ 2545 s = splusb(); 2546 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2547 std = iso->stds[i]; 2548 vstd = sc->sc_vframes[i].htd; 2549 std->link = vstd->link; 2550 std->td.td_link = vstd->td.td_link; 2551 vstd->link.std = std; 2552 vstd->td.td_link = htole32(std->physaddr); 2553 } 2554 splx(s); 2555 2556 iso->next = -1; 2557 iso->inuse = 0; 2558 2559 return (USBD_NORMAL_COMPLETION); 2560 2561 bad: 2562 while (--i >= 0) 2563 uhci_free_std(sc, iso->stds[i]); 2564 free(iso->stds, M_USBHC); 2565 return (USBD_NOMEM); 2566 } 2567 2568 void 2569 uhci_device_isoc_done(xfer) 2570 usbd_xfer_handle xfer; 2571 { 2572 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2573 2574 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2575 2576 /* Turn off the interrupt since it is active even if the TD is not. */ 2577 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2578 2579 uhci_del_intr_info(ii); /* remove from active list */ 2580 } 2581 2582 void 2583 uhci_device_intr_done(xfer) 2584 usbd_xfer_handle xfer; 2585 { 2586 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2587 uhci_softc_t *sc = ii->sc; 2588 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2589 uhci_soft_qh_t *sqh; 2590 int i, npoll; 2591 2592 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2593 2594 npoll = upipe->u.intr.npoll; 2595 for(i = 0; i < npoll; i++) { 2596 sqh = upipe->u.intr.qhs[i]; 2597 sqh->elink = 0; 2598 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2599 } 2600 uhci_free_std_chain(sc, ii->stdstart, 0); 2601 2602 /* XXX Wasteful. */ 2603 if (xfer->pipe->repeat) { 2604 uhci_soft_td_t *data, *dataend; 2605 2606 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2607 2608 /* This alloc cannot fail since we freed the chain above. */ 2609 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2610 &xfer->dmabuf, &data, &dataend); 2611 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2612 2613 #ifdef UHCI_DEBUG 2614 if (uhcidebug > 10) { 2615 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2616 uhci_dump_tds(data); 2617 uhci_dump_qh(upipe->u.intr.qhs[0]); 2618 } 2619 #endif 2620 2621 ii->stdstart = data; 2622 ii->stdend = dataend; 2623 usb_callout_init(ii->timeout_handle); 2624 #ifdef DIAGNOSTIC 2625 if (!ii->isdone) { 2626 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2627 } 2628 ii->isdone = 0; 2629 #endif 2630 for (i = 0; i < npoll; i++) { 2631 sqh = upipe->u.intr.qhs[i]; 2632 sqh->elink = data; 2633 sqh->qh.qh_elink = htole32(data->physaddr); 2634 } 2635 xfer->status = USBD_IN_PROGRESS; 2636 /* The ii is already on the examined list, just leave it. */ 2637 } else { 2638 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2639 uhci_del_intr_info(ii); 2640 } 2641 } 2642 2643 /* Deallocate request data structures */ 2644 void 2645 uhci_device_ctrl_done(xfer) 2646 usbd_xfer_handle xfer; 2647 { 2648 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2649 uhci_softc_t *sc = ii->sc; 2650 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2651 2652 #ifdef DIAGNOSTIC 2653 if (!(xfer->rqflags & URQ_REQUEST)) 2654 panic("uhci_ctrl_done: not a request\n"); 2655 #endif 2656 2657 DPRINTF(("uhci_device_ctrl_done xfer=%p ii=%p\n", xfer, ii)); 2658 uhci_del_intr_info(ii); /* remove from active list */ 2659 2660 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2661 2662 if (upipe->u.ctl.length != 0) 2663 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2664 2665 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2666 } 2667 2668 /* Deallocate request data structures */ 2669 void 2670 uhci_device_bulk_done(xfer) 2671 usbd_xfer_handle xfer; 2672 { 2673 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2674 uhci_softc_t *sc = ii->sc; 2675 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2676 2677 uhci_del_intr_info(ii); /* remove from active list */ 2678 2679 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2680 2681 uhci_free_std_chain(sc, ii->stdstart, 0); 2682 2683 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2684 } 2685 2686 /* Add interrupt QH, called with vflock. */ 2687 void 2688 uhci_add_intr(sc, sqh) 2689 uhci_softc_t *sc; 2690 uhci_soft_qh_t *sqh; 2691 { 2692 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2693 uhci_soft_qh_t *eqh; 2694 2695 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2696 2697 eqh = vf->eqh; 2698 sqh->hlink = eqh->hlink; 2699 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2700 eqh->hlink = sqh; 2701 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2702 vf->eqh = sqh; 2703 vf->bandwidth++; 2704 } 2705 2706 /* Remove interrupt QH, called with vflock. */ 2707 void 2708 uhci_remove_intr(sc, sqh) 2709 uhci_softc_t *sc; 2710 uhci_soft_qh_t *sqh; 2711 { 2712 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2713 uhci_soft_qh_t *pqh; 2714 2715 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2716 2717 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2718 pqh->hlink = sqh->hlink; 2719 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2720 if (vf->eqh == sqh) 2721 vf->eqh = pqh; 2722 vf->bandwidth--; 2723 } 2724 2725 usbd_status 2726 uhci_device_setintr(sc, upipe, ival) 2727 uhci_softc_t *sc; 2728 struct uhci_pipe *upipe; 2729 int ival; 2730 { 2731 uhci_soft_qh_t *sqh; 2732 int i, npoll, s; 2733 u_int bestbw, bw, bestoffs, offs; 2734 2735 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2736 if (ival == 0) { 2737 printf("uhci_setintr: 0 interval\n"); 2738 return (USBD_INVAL); 2739 } 2740 2741 if (ival > UHCI_VFRAMELIST_COUNT) 2742 ival = UHCI_VFRAMELIST_COUNT; 2743 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2744 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2745 2746 upipe->u.intr.npoll = npoll; 2747 upipe->u.intr.qhs = 2748 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2749 2750 /* 2751 * Figure out which offset in the schedule that has most 2752 * bandwidth left over. 2753 */ 2754 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2755 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2756 for (bw = i = 0; i < npoll; i++) 2757 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2758 if (bw < bestbw) { 2759 bestbw = bw; 2760 bestoffs = offs; 2761 } 2762 } 2763 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2764 2765 for(i = 0; i < npoll; i++) { 2766 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2767 sqh->elink = 0; 2768 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2769 sqh->pos = MOD(i * ival + bestoffs); 2770 } 2771 #undef MOD 2772 2773 s = splusb(); 2774 /* Enter QHs into the controller data structures. */ 2775 for(i = 0; i < npoll; i++) 2776 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2777 splx(s); 2778 2779 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2780 return (USBD_NORMAL_COMPLETION); 2781 } 2782 2783 /* Open a new pipe. */ 2784 usbd_status 2785 uhci_open(pipe) 2786 usbd_pipe_handle pipe; 2787 { 2788 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2789 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2790 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2791 usbd_status err; 2792 int ival; 2793 2794 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2795 pipe, pipe->device->address, 2796 ed->bEndpointAddress, sc->sc_addr)); 2797 2798 upipe->aborting = 0; 2799 upipe->nexttoggle = 0; 2800 2801 if (pipe->device->address == sc->sc_addr) { 2802 switch (ed->bEndpointAddress) { 2803 case USB_CONTROL_ENDPOINT: 2804 pipe->methods = &uhci_root_ctrl_methods; 2805 break; 2806 case UE_DIR_IN | UHCI_INTR_ENDPT: 2807 pipe->methods = &uhci_root_intr_methods; 2808 break; 2809 default: 2810 return (USBD_INVAL); 2811 } 2812 } else { 2813 switch (ed->bmAttributes & UE_XFERTYPE) { 2814 case UE_CONTROL: 2815 pipe->methods = &uhci_device_ctrl_methods; 2816 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2817 if (upipe->u.ctl.sqh == NULL) 2818 goto bad; 2819 upipe->u.ctl.setup = uhci_alloc_std(sc); 2820 if (upipe->u.ctl.setup == NULL) { 2821 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2822 goto bad; 2823 } 2824 upipe->u.ctl.stat = uhci_alloc_std(sc); 2825 if (upipe->u.ctl.stat == NULL) { 2826 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2827 uhci_free_std(sc, upipe->u.ctl.setup); 2828 goto bad; 2829 } 2830 err = usb_allocmem(&sc->sc_bus, 2831 sizeof(usb_device_request_t), 2832 0, &upipe->u.ctl.reqdma); 2833 if (err) { 2834 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2835 uhci_free_std(sc, upipe->u.ctl.setup); 2836 uhci_free_std(sc, upipe->u.ctl.stat); 2837 goto bad; 2838 } 2839 break; 2840 case UE_INTERRUPT: 2841 pipe->methods = &uhci_device_intr_methods; 2842 ival = pipe->interval; 2843 if (ival == USBD_DEFAULT_INTERVAL) 2844 ival = ed->bInterval; 2845 return (uhci_device_setintr(sc, upipe, ival)); 2846 case UE_ISOCHRONOUS: 2847 pipe->methods = &uhci_device_isoc_methods; 2848 return (uhci_setup_isoc(pipe)); 2849 case UE_BULK: 2850 pipe->methods = &uhci_device_bulk_methods; 2851 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2852 if (upipe->u.bulk.sqh == NULL) 2853 goto bad; 2854 break; 2855 } 2856 } 2857 return (USBD_NORMAL_COMPLETION); 2858 2859 bad: 2860 return (USBD_NOMEM); 2861 } 2862 2863 /* 2864 * Data structures and routines to emulate the root hub. 2865 */ 2866 usb_device_descriptor_t uhci_devd = { 2867 USB_DEVICE_DESCRIPTOR_SIZE, 2868 UDESC_DEVICE, /* type */ 2869 {0x00, 0x01}, /* USB version */ 2870 UDCLASS_HUB, /* class */ 2871 UDSUBCLASS_HUB, /* subclass */ 2872 0, /* protocol */ 2873 64, /* max packet */ 2874 {0},{0},{0x00,0x01}, /* device id */ 2875 1,2,0, /* string indicies */ 2876 1 /* # of configurations */ 2877 }; 2878 2879 usb_config_descriptor_t uhci_confd = { 2880 USB_CONFIG_DESCRIPTOR_SIZE, 2881 UDESC_CONFIG, 2882 {USB_CONFIG_DESCRIPTOR_SIZE + 2883 USB_INTERFACE_DESCRIPTOR_SIZE + 2884 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2885 1, 2886 1, 2887 0, 2888 UC_SELF_POWERED, 2889 0 /* max power */ 2890 }; 2891 2892 usb_interface_descriptor_t uhci_ifcd = { 2893 USB_INTERFACE_DESCRIPTOR_SIZE, 2894 UDESC_INTERFACE, 2895 0, 2896 0, 2897 1, 2898 UICLASS_HUB, 2899 UISUBCLASS_HUB, 2900 0, 2901 0 2902 }; 2903 2904 usb_endpoint_descriptor_t uhci_endpd = { 2905 USB_ENDPOINT_DESCRIPTOR_SIZE, 2906 UDESC_ENDPOINT, 2907 UE_DIR_IN | UHCI_INTR_ENDPT, 2908 UE_INTERRUPT, 2909 {8}, 2910 255 2911 }; 2912 2913 usb_hub_descriptor_t uhci_hubd_piix = { 2914 USB_HUB_DESCRIPTOR_SIZE, 2915 UDESC_HUB, 2916 2, 2917 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2918 50, /* power on to power good */ 2919 0, 2920 { 0x00 }, /* both ports are removable */ 2921 }; 2922 2923 int 2924 uhci_str(p, l, s) 2925 usb_string_descriptor_t *p; 2926 int l; 2927 char *s; 2928 { 2929 int i; 2930 2931 if (l == 0) 2932 return (0); 2933 p->bLength = 2 * strlen(s) + 2; 2934 if (l == 1) 2935 return (1); 2936 p->bDescriptorType = UDESC_STRING; 2937 l -= 2; 2938 for (i = 0; s[i] && l > 1; i++, l -= 2) 2939 USETW2(p->bString[i], 0, s[i]); 2940 return (2*i+2); 2941 } 2942 2943 /* 2944 * Simulate a hardware hub by handling all the necessary requests. 2945 */ 2946 usbd_status 2947 uhci_root_ctrl_transfer(xfer) 2948 usbd_xfer_handle xfer; 2949 { 2950 usbd_status err; 2951 2952 /* Insert last in queue. */ 2953 err = usb_insert_transfer(xfer); 2954 if (err) 2955 return (err); 2956 2957 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2958 * start first 2959 */ 2960 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2961 } 2962 2963 usbd_status 2964 uhci_root_ctrl_start(xfer) 2965 usbd_xfer_handle xfer; 2966 { 2967 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2968 usb_device_request_t *req; 2969 void *buf = NULL; 2970 int port, x; 2971 int s, len, value, index, status, change, l, totlen = 0; 2972 usb_port_status_t ps; 2973 usbd_status err; 2974 2975 if (sc->sc_dying) 2976 return (USBD_IOERROR); 2977 2978 #ifdef DIAGNOSTIC 2979 if (!(xfer->rqflags & URQ_REQUEST)) 2980 panic("uhci_root_ctrl_transfer: not a request\n"); 2981 #endif 2982 req = &xfer->request; 2983 2984 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2985 req->bmRequestType, req->bRequest)); 2986 2987 len = UGETW(req->wLength); 2988 value = UGETW(req->wValue); 2989 index = UGETW(req->wIndex); 2990 2991 if (len != 0) 2992 buf = KERNADDR(&xfer->dmabuf); 2993 2994 #define C(x,y) ((x) | ((y) << 8)) 2995 switch(C(req->bRequest, req->bmRequestType)) { 2996 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2997 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2998 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2999 /* 3000 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3001 * for the integrated root hub. 3002 */ 3003 break; 3004 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3005 if (len > 0) { 3006 *(u_int8_t *)buf = sc->sc_conf; 3007 totlen = 1; 3008 } 3009 break; 3010 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3011 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3012 switch(value >> 8) { 3013 case UDESC_DEVICE: 3014 if ((value & 0xff) != 0) { 3015 err = USBD_IOERROR; 3016 goto ret; 3017 } 3018 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3019 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3020 memcpy(buf, &uhci_devd, l); 3021 break; 3022 case UDESC_CONFIG: 3023 if ((value & 0xff) != 0) { 3024 err = USBD_IOERROR; 3025 goto ret; 3026 } 3027 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3028 memcpy(buf, &uhci_confd, l); 3029 buf = (char *)buf + l; 3030 len -= l; 3031 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3032 totlen += l; 3033 memcpy(buf, &uhci_ifcd, l); 3034 buf = (char *)buf + l; 3035 len -= l; 3036 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3037 totlen += l; 3038 memcpy(buf, &uhci_endpd, l); 3039 break; 3040 case UDESC_STRING: 3041 if (len == 0) 3042 break; 3043 *(u_int8_t *)buf = 0; 3044 totlen = 1; 3045 switch (value & 0xff) { 3046 case 1: /* Vendor */ 3047 totlen = uhci_str(buf, len, sc->sc_vendor); 3048 break; 3049 case 2: /* Product */ 3050 totlen = uhci_str(buf, len, "UHCI root hub"); 3051 break; 3052 } 3053 break; 3054 default: 3055 err = USBD_IOERROR; 3056 goto ret; 3057 } 3058 break; 3059 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3060 if (len > 0) { 3061 *(u_int8_t *)buf = 0; 3062 totlen = 1; 3063 } 3064 break; 3065 case C(UR_GET_STATUS, UT_READ_DEVICE): 3066 if (len > 1) { 3067 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3068 totlen = 2; 3069 } 3070 break; 3071 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3072 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3073 if (len > 1) { 3074 USETW(((usb_status_t *)buf)->wStatus, 0); 3075 totlen = 2; 3076 } 3077 break; 3078 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3079 if (value >= USB_MAX_DEVICES) { 3080 err = USBD_IOERROR; 3081 goto ret; 3082 } 3083 sc->sc_addr = value; 3084 break; 3085 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3086 if (value != 0 && value != 1) { 3087 err = USBD_IOERROR; 3088 goto ret; 3089 } 3090 sc->sc_conf = value; 3091 break; 3092 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3093 break; 3094 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3095 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3096 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3097 err = USBD_IOERROR; 3098 goto ret; 3099 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3100 break; 3101 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3102 break; 3103 /* Hub requests */ 3104 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3105 break; 3106 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3107 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3108 "port=%d feature=%d\n", 3109 index, value)); 3110 if (index == 1) 3111 port = UHCI_PORTSC1; 3112 else if (index == 2) 3113 port = UHCI_PORTSC2; 3114 else { 3115 err = USBD_IOERROR; 3116 goto ret; 3117 } 3118 switch(value) { 3119 case UHF_PORT_ENABLE: 3120 x = UREAD2(sc, port); 3121 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3122 break; 3123 case UHF_PORT_SUSPEND: 3124 x = UREAD2(sc, port); 3125 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3126 break; 3127 case UHF_PORT_RESET: 3128 x = UREAD2(sc, port); 3129 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3130 break; 3131 case UHF_C_PORT_CONNECTION: 3132 x = UREAD2(sc, port); 3133 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3134 break; 3135 case UHF_C_PORT_ENABLE: 3136 x = UREAD2(sc, port); 3137 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3138 break; 3139 case UHF_C_PORT_OVER_CURRENT: 3140 x = UREAD2(sc, port); 3141 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3142 break; 3143 case UHF_C_PORT_RESET: 3144 sc->sc_isreset = 0; 3145 err = USBD_NORMAL_COMPLETION; 3146 goto ret; 3147 case UHF_PORT_CONNECTION: 3148 case UHF_PORT_OVER_CURRENT: 3149 case UHF_PORT_POWER: 3150 case UHF_PORT_LOW_SPEED: 3151 case UHF_C_PORT_SUSPEND: 3152 default: 3153 err = USBD_IOERROR; 3154 goto ret; 3155 } 3156 break; 3157 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3158 if (index == 1) 3159 port = UHCI_PORTSC1; 3160 else if (index == 2) 3161 port = UHCI_PORTSC2; 3162 else { 3163 err = USBD_IOERROR; 3164 goto ret; 3165 } 3166 if (len > 0) { 3167 *(u_int8_t *)buf = 3168 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3169 UHCI_PORTSC_LS_SHIFT; 3170 totlen = 1; 3171 } 3172 break; 3173 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3174 if (value != 0) { 3175 err = USBD_IOERROR; 3176 goto ret; 3177 } 3178 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3179 totlen = l; 3180 memcpy(buf, &uhci_hubd_piix, l); 3181 break; 3182 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3183 if (len != 4) { 3184 err = USBD_IOERROR; 3185 goto ret; 3186 } 3187 memset(buf, 0, len); 3188 totlen = len; 3189 break; 3190 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3191 if (index == 1) 3192 port = UHCI_PORTSC1; 3193 else if (index == 2) 3194 port = UHCI_PORTSC2; 3195 else { 3196 err = USBD_IOERROR; 3197 goto ret; 3198 } 3199 if (len != 4) { 3200 err = USBD_IOERROR; 3201 goto ret; 3202 } 3203 x = UREAD2(sc, port); 3204 status = change = 0; 3205 if (x & UHCI_PORTSC_CCS ) 3206 status |= UPS_CURRENT_CONNECT_STATUS; 3207 if (x & UHCI_PORTSC_CSC ) 3208 change |= UPS_C_CONNECT_STATUS; 3209 if (x & UHCI_PORTSC_PE ) 3210 status |= UPS_PORT_ENABLED; 3211 if (x & UHCI_PORTSC_POEDC) 3212 change |= UPS_C_PORT_ENABLED; 3213 if (x & UHCI_PORTSC_OCI ) 3214 status |= UPS_OVERCURRENT_INDICATOR; 3215 if (x & UHCI_PORTSC_OCIC ) 3216 change |= UPS_C_OVERCURRENT_INDICATOR; 3217 if (x & UHCI_PORTSC_SUSP ) 3218 status |= UPS_SUSPEND; 3219 if (x & UHCI_PORTSC_LSDA ) 3220 status |= UPS_LOW_SPEED; 3221 status |= UPS_PORT_POWER; 3222 if (sc->sc_isreset) 3223 change |= UPS_C_PORT_RESET; 3224 USETW(ps.wPortStatus, status); 3225 USETW(ps.wPortChange, change); 3226 l = min(len, sizeof ps); 3227 memcpy(buf, &ps, l); 3228 totlen = l; 3229 break; 3230 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3231 err = USBD_IOERROR; 3232 goto ret; 3233 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3234 break; 3235 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3236 if (index == 1) 3237 port = UHCI_PORTSC1; 3238 else if (index == 2) 3239 port = UHCI_PORTSC2; 3240 else { 3241 err = USBD_IOERROR; 3242 goto ret; 3243 } 3244 switch(value) { 3245 case UHF_PORT_ENABLE: 3246 x = UREAD2(sc, port); 3247 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3248 break; 3249 case UHF_PORT_SUSPEND: 3250 x = UREAD2(sc, port); 3251 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3252 break; 3253 case UHF_PORT_RESET: 3254 x = UREAD2(sc, port); 3255 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3256 usb_delay_ms(&sc->sc_bus, 10); 3257 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3258 delay(100); 3259 x = UREAD2(sc, port); 3260 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3261 delay(100); 3262 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3263 index, UREAD2(sc, port))); 3264 sc->sc_isreset = 1; 3265 break; 3266 case UHF_C_PORT_CONNECTION: 3267 case UHF_C_PORT_ENABLE: 3268 case UHF_C_PORT_OVER_CURRENT: 3269 case UHF_PORT_CONNECTION: 3270 case UHF_PORT_OVER_CURRENT: 3271 case UHF_PORT_POWER: 3272 case UHF_PORT_LOW_SPEED: 3273 case UHF_C_PORT_SUSPEND: 3274 case UHF_C_PORT_RESET: 3275 default: 3276 err = USBD_IOERROR; 3277 goto ret; 3278 } 3279 break; 3280 default: 3281 err = USBD_IOERROR; 3282 goto ret; 3283 } 3284 xfer->actlen = totlen; 3285 err = USBD_NORMAL_COMPLETION; 3286 ret: 3287 xfer->status = err; 3288 s = splusb(); 3289 usb_transfer_complete(xfer); 3290 splx(s); 3291 return (USBD_IN_PROGRESS); 3292 } 3293 3294 /* Abort a root control request. */ 3295 void 3296 uhci_root_ctrl_abort(xfer) 3297 usbd_xfer_handle xfer; 3298 { 3299 /* Nothing to do, all transfers are synchronous. */ 3300 } 3301 3302 /* Close the root pipe. */ 3303 void 3304 uhci_root_ctrl_close(pipe) 3305 usbd_pipe_handle pipe; 3306 { 3307 DPRINTF(("uhci_root_ctrl_close\n")); 3308 } 3309 3310 /* Abort a root interrupt request. */ 3311 void 3312 uhci_root_intr_abort(xfer) 3313 usbd_xfer_handle xfer; 3314 { 3315 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3316 3317 usb_uncallout(xfer->timo_handle, uhci_timo, xfer); 3318 sc->sc_has_timo = NULL; 3319 3320 if (xfer->pipe->intrxfer == xfer) { 3321 DPRINTF(("uhci_root_intr_abort: remove\n")); 3322 xfer->pipe->intrxfer = 0; 3323 } 3324 xfer->status = USBD_CANCELLED; 3325 usb_transfer_complete(xfer); 3326 } 3327 3328 usbd_status 3329 uhci_root_intr_transfer(xfer) 3330 usbd_xfer_handle xfer; 3331 { 3332 usbd_status err; 3333 3334 /* Insert last in queue. */ 3335 err = usb_insert_transfer(xfer); 3336 if (err) 3337 return (err); 3338 3339 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3340 * start first 3341 */ 3342 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3343 } 3344 3345 /* Start a transfer on the root interrupt pipe */ 3346 usbd_status 3347 uhci_root_intr_start(xfer) 3348 usbd_xfer_handle xfer; 3349 { 3350 usbd_pipe_handle pipe = xfer->pipe; 3351 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3352 3353 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3354 xfer, xfer->length, xfer->flags)); 3355 3356 if (sc->sc_dying) 3357 return (USBD_IOERROR); 3358 3359 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3360 usb_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 3361 sc->sc_has_timo = xfer; 3362 return (USBD_IN_PROGRESS); 3363 } 3364 3365 /* Close the root interrupt pipe. */ 3366 void 3367 uhci_root_intr_close(pipe) 3368 usbd_pipe_handle pipe; 3369 { 3370 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3371 3372 usb_uncallout(pipe->intrxfer->timo_handle, uhci_timo, pipe->intrxfer); 3373 sc->sc_has_timo = NULL; 3374 DPRINTF(("uhci_root_intr_close\n")); 3375 } 3376
Indexes created Tue Sep 30 20:09:53 GMT 2025