uhci.c revision 1.93
1 /* $NetBSD: uhci.c,v 1.93 2000/03/25 00:11:21 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 #ifdef DIAGNOSTIC 573 xfer->isfree = 0; 574 #endif 575 return (xfer); 576 } 577 578 void 579 uhci_freex(bus, xfer) 580 struct usbd_bus *bus; 581 usbd_xfer_handle xfer; 582 { 583 struct uhci_softc *sc = (struct uhci_softc *)bus; 584 585 #ifdef DIAGNOSTIC 586 if (xfer->isfree) { 587 printf("uhci_freex: xfer=%p already free\n", xfer); 588 return; 589 } 590 xfer->isfree = 1; 591 #endif 592 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 593 } 594 595 /* 596 * Shut down the controller when the system is going down. 597 */ 598 void 599 uhci_shutdown(v) 600 void *v; 601 { 602 uhci_softc_t *sc = v; 603 604 DPRINTF(("uhci_shutdown: stopping the HC\n")); 605 uhci_run(sc, 0); /* stop the controller */ 606 } 607 608 /* 609 * Handle suspend/resume. 610 * 611 * We need to switch to polling mode here, because this routine is 612 * called from an intterupt context. This is all right since we 613 * are almost suspended anyway. 614 */ 615 void 616 uhci_power(why, v) 617 int why; 618 void *v; 619 { 620 uhci_softc_t *sc = v; 621 int cmd; 622 int s; 623 624 s = splusb(); 625 cmd = UREAD2(sc, UHCI_CMD); 626 627 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 628 sc, why, sc->sc_suspend, cmd)); 629 630 if (why != PWR_RESUME) { 631 #ifdef UHCI_DEBUG 632 if (uhcidebug > 2) 633 uhci_dumpregs(sc); 634 #endif 635 if (sc->sc_has_timo != NULL) 636 usb_uncallout(sc->sc_has_timo->timo_handle, 637 uhci_timo, sc->sc_has_timo); 638 sc->sc_bus.use_polling++; 639 uhci_run(sc, 0); /* stop the controller */ 640 641 /* save some state if BIOS doesn't */ 642 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 643 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 644 645 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 646 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 647 sc->sc_suspend = why; 648 sc->sc_bus.use_polling--; 649 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 650 } else { 651 #ifdef DIAGNOSTIC 652 if (sc->sc_suspend == PWR_RESUME) 653 printf("uhci_power: weird, resume without suspend.\n"); 654 #endif 655 sc->sc_bus.use_polling++; 656 sc->sc_suspend = why; 657 if (cmd & UHCI_CMD_RS) 658 uhci_run(sc, 0); /* in case BIOS has started it */ 659 660 /* restore saved state */ 661 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 662 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 663 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 664 665 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 666 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 667 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 668 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 669 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 670 uhci_run(sc, 1); /* and start traffic again */ 671 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 672 sc->sc_bus.use_polling--; 673 if (sc->sc_has_timo != NULL) 674 usb_callout(sc->sc_has_timo->timo_handle, sc->sc_ival, 675 uhci_timo, sc->sc_has_timo); 676 #ifdef UHCI_DEBUG 677 if (uhcidebug > 2) 678 uhci_dumpregs(sc); 679 #endif 680 } 681 splx(s); 682 } 683 684 #ifdef UHCI_DEBUG 685 static void 686 uhci_dumpregs(sc) 687 uhci_softc_t *sc; 688 { 689 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 690 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 691 USBDEVNAME(sc->sc_bus.bdev), 692 UREAD2(sc, UHCI_CMD), 693 UREAD2(sc, UHCI_STS), 694 UREAD2(sc, UHCI_INTR), 695 UREAD2(sc, UHCI_FRNUM), 696 UREAD4(sc, UHCI_FLBASEADDR), 697 UREAD1(sc, UHCI_SOF), 698 UREAD2(sc, UHCI_PORTSC1), 699 UREAD2(sc, UHCI_PORTSC2))); 700 } 701 702 void 703 uhci_dump_td(p) 704 uhci_soft_td_t *p; 705 { 706 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 707 "token=0x%08lx buffer=0x%08lx\n", 708 p, (long)p->physaddr, 709 (long)le32toh(p->td.td_link), 710 (long)le32toh(p->td.td_status), 711 (long)le32toh(p->td.td_token), 712 (long)le32toh(p->td.td_buffer))); 713 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 714 "D=%d,maxlen=%d\n", 715 (int)le32toh(p->td.td_link), 716 "\20\1T\2Q\3VF", 717 (int)le32toh(p->td.td_status), 718 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 719 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 720 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 721 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 722 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 723 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 724 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 725 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 726 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 727 } 728 729 void 730 uhci_dump_qh(sqh) 731 uhci_soft_qh_t *sqh; 732 { 733 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 734 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 735 le32toh(sqh->qh.qh_elink))); 736 } 737 738 739 #if 0 740 void 741 uhci_dump() 742 { 743 uhci_softc_t *sc = thesc; 744 745 uhci_dumpregs(sc); 746 printf("intrs=%d\n", sc->sc_bus.no_intrs); 747 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 748 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 749 } 750 #endif 751 752 753 void 754 uhci_dump_qhs(sqh) 755 uhci_soft_qh_t *sqh; 756 { 757 uhci_dump_qh(sqh); 758 759 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 760 * Traverses sideways first, then down. 761 * 762 * QH1 763 * QH2 764 * No QH 765 * TD2.1 766 * TD2.2 767 * TD1.1 768 * etc. 769 * 770 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 771 */ 772 773 774 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 775 uhci_dump_qhs(sqh->hlink); 776 else 777 DPRINTF(("No QH\n")); 778 779 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 780 uhci_dump_tds(sqh->elink); 781 else 782 DPRINTF(("No TD\n")); 783 } 784 785 void 786 uhci_dump_tds(std) 787 uhci_soft_td_t *std; 788 { 789 uhci_soft_td_t *td; 790 791 for(td = std; td != NULL; td = td->link.std) { 792 uhci_dump_td(td); 793 794 /* Check whether the link pointer in this TD marks 795 * the link pointer as end of queue. This avoids 796 * printing the free list in case the queue/TD has 797 * already been moved there (seatbelt). 798 */ 799 if (le32toh(td->td.td_link) & UHCI_PTR_T || 800 le32toh(td->td.td_link) == 0) 801 break; 802 } 803 } 804 805 void uhci_dump_ii(uhci_intr_info_t *ii); 806 void 807 uhci_dump_ii(ii) 808 uhci_intr_info_t *ii; 809 { 810 usbd_pipe_handle pipe = ii->xfer->pipe; 811 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 812 usbd_device_handle dev = pipe->device; 813 814 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", 815 ii, ii->isdone, ii->xfer, dev, 816 UGETW(dev->ddesc.idVendor), 817 UGETW(dev->ddesc.idProduct), 818 dev->address, pipe, 819 ed->bEndpointAddress, ed->bmAttributes); 820 } 821 822 void uhci_dump_iis(struct uhci_softc *); 823 void 824 uhci_dump_iis(sc) 825 struct uhci_softc *sc; 826 { 827 uhci_intr_info_t *ii; 828 829 printf("intr_info list:\n"); 830 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 831 uhci_dump_ii(ii); 832 } 833 834 void iidump(void); 835 void iidump() { uhci_dump_iis(thesc); } 836 837 #endif 838 839 /* 840 * This routine is executed periodically and simulates interrupts 841 * from the root controller interrupt pipe for port status change. 842 */ 843 void 844 uhci_timo(addr) 845 void *addr; 846 { 847 usbd_xfer_handle xfer = addr; 848 usbd_pipe_handle pipe = xfer->pipe; 849 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 850 int s; 851 u_char *p; 852 853 DPRINTFN(20, ("uhci_timo\n")); 854 855 usb_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 856 857 p = KERNADDR(&xfer->dmabuf); 858 p[0] = 0; 859 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 860 p[0] |= 1<<1; 861 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 862 p[0] |= 1<<2; 863 if (p[0] == 0) 864 /* No change, try again in a while */ 865 return; 866 867 xfer->actlen = 1; 868 xfer->status = USBD_NORMAL_COMPLETION; 869 s = splusb(); 870 xfer->device->bus->intr_context++; 871 usb_transfer_complete(xfer); 872 xfer->device->bus->intr_context--; 873 splx(s); 874 } 875 876 void 877 uhci_root_intr_done(xfer) 878 usbd_xfer_handle xfer; 879 { 880 } 881 882 void 883 uhci_root_ctrl_done(xfer) 884 usbd_xfer_handle xfer; 885 { 886 } 887 888 /* Add control QH, called at splusb(). */ 889 void 890 uhci_add_ctrl(sc, sqh) 891 uhci_softc_t *sc; 892 uhci_soft_qh_t *sqh; 893 { 894 uhci_soft_qh_t *eqh; 895 896 SPLUSBCHECK; 897 898 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 899 eqh = sc->sc_ctl_end; 900 sqh->hlink = eqh->hlink; 901 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 902 eqh->hlink = sqh; 903 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 904 sc->sc_ctl_end = sqh; 905 } 906 907 /* Remove control QH, called at splusb(). */ 908 void 909 uhci_remove_ctrl(sc, sqh) 910 uhci_softc_t *sc; 911 uhci_soft_qh_t *sqh; 912 { 913 uhci_soft_qh_t *pqh; 914 915 SPLUSBCHECK; 916 917 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 918 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 919 pqh->hlink = sqh->hlink; 920 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 921 if (sc->sc_ctl_end == sqh) 922 sc->sc_ctl_end = pqh; 923 } 924 925 /* Add bulk QH, called at splusb(). */ 926 void 927 uhci_add_bulk(sc, sqh) 928 uhci_softc_t *sc; 929 uhci_soft_qh_t *sqh; 930 { 931 uhci_soft_qh_t *eqh; 932 933 SPLUSBCHECK; 934 935 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 936 eqh = sc->sc_bulk_end; 937 sqh->hlink = eqh->hlink; 938 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 939 eqh->hlink = sqh; 940 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 941 sc->sc_bulk_end = sqh; 942 } 943 944 void fooo(void); 945 void fooo() { } 946 947 /* Remove bulk QH, called at splusb(). */ 948 void 949 uhci_remove_bulk(sc, sqh) 950 uhci_softc_t *sc; 951 uhci_soft_qh_t *sqh; 952 { 953 uhci_soft_qh_t *pqh; 954 955 SPLUSBCHECK; 956 957 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 958 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 959 pqh->hlink = sqh->hlink; 960 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 961 if (sc->sc_bulk_end == sqh) 962 sc->sc_bulk_end = pqh; 963 } 964 965 int 966 uhci_intr(arg) 967 void *arg; 968 { 969 uhci_softc_t *sc = arg; 970 int status; 971 int ack; 972 973 #ifdef UHCI_DEBUG 974 if (uhcidebug > 15) { 975 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 976 uhci_dumpregs(sc); 977 } 978 #endif 979 980 status = UREAD2(sc, UHCI_STS); 981 if (status == 0) /* The interrupt was not for us. */ 982 return (0); 983 984 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 985 if (sc->sc_suspend != PWR_RESUME) 986 printf("uhci_intr: suspended sts=0x%x\n", status); 987 #endif 988 989 ack = 0; 990 if (status & UHCI_STS_USBINT) 991 ack |= UHCI_STS_USBINT; 992 if (status & UHCI_STS_USBEI) 993 ack |= UHCI_STS_USBEI; 994 if (status & UHCI_STS_RD) { 995 ack |= UHCI_STS_RD; 996 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 997 } 998 if (status & UHCI_STS_HSE) { 999 ack |= UHCI_STS_HSE; 1000 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1001 } 1002 if (status & UHCI_STS_HCPE) { 1003 ack |= UHCI_STS_HCPE; 1004 printf("%s: host controller process error\n", 1005 USBDEVNAME(sc->sc_bus.bdev)); 1006 } 1007 if (status & UHCI_STS_HCH) { 1008 /* no acknowledge needed */ 1009 printf("%s: host controller halted\n", 1010 USBDEVNAME(sc->sc_bus.bdev)); 1011 sc->sc_dying = 1; 1012 fooo(); 1013 } 1014 1015 if (ack) /* acknowledge the ints */ 1016 UWRITE2(sc, UHCI_STS, ack); 1017 else /* nothing to acknowledge */ 1018 return (0); 1019 1020 sc->sc_bus.no_intrs++; 1021 usb_schedsoftintr(&sc->sc_bus); 1022 1023 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1024 1025 return (1); 1026 } 1027 1028 void 1029 uhci_softintr(bus) 1030 struct usbd_bus *bus; 1031 { 1032 uhci_softc_t *sc = (uhci_softc_t *)bus; 1033 uhci_intr_info_t *ii; 1034 1035 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1036 1037 sc->sc_bus.intr_context++; 1038 1039 /* 1040 * Interrupts on UHCI really suck. When the host controller 1041 * interrupts because a transfer is completed there is no 1042 * way of knowing which transfer it was. You can scan down 1043 * the TDs and QHs of the previous frame to limit the search, 1044 * but that assumes that the interrupt was not delayed by more 1045 * than 1 ms, which may not always be true (e.g. after debug 1046 * output on a slow console). 1047 * We scan all interrupt descriptors to see if any have 1048 * completed. 1049 */ 1050 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1051 uhci_check_intr(sc, ii); 1052 1053 sc->sc_bus.intr_context--; 1054 } 1055 1056 /* Check for an interrupt. */ 1057 void 1058 uhci_check_intr(sc, ii) 1059 uhci_softc_t *sc; 1060 uhci_intr_info_t *ii; 1061 { 1062 uhci_soft_td_t *std, *lstd; 1063 u_int32_t status; 1064 1065 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1066 #ifdef DIAGNOSTIC 1067 if (ii == NULL) { 1068 printf("uhci_check_intr: no ii? %p\n", ii); 1069 return; 1070 } 1071 #endif 1072 if (ii->stdstart == NULL) 1073 return; 1074 lstd = ii->stdend; 1075 #ifdef DIAGNOSTIC 1076 if (lstd == NULL) { 1077 printf("uhci_check_intr: std==0\n"); 1078 return; 1079 } 1080 #endif 1081 /* 1082 * If the last TD is still active we need to check whether there 1083 * is a an error somewhere in the middle, or whether there was a 1084 * short packet (SPD and not ACTIVE). 1085 */ 1086 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1087 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1088 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1089 status = le32toh(std->td.td_status); 1090 /* If there's an active TD the xfer isn't done. */ 1091 if (status & UHCI_TD_ACTIVE) 1092 break; 1093 /* Any kind of error makes the xfer done. */ 1094 if (status & UHCI_TD_STALLED) 1095 goto done; 1096 /* We want short packets, and it is short: it's done */ 1097 if ((status & UHCI_TD_SPD) && 1098 UHCI_TD_GET_ACTLEN(status) < 1099 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1100 goto done; 1101 } 1102 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1103 ii, ii->stdstart)); 1104 return; 1105 } 1106 done: 1107 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1108 usb_uncallout(ii->timeout_handle, uhci_timeout, ii); 1109 uhci_idone(ii); 1110 } 1111 1112 /* Called at splusb() */ 1113 void 1114 uhci_idone(ii) 1115 uhci_intr_info_t *ii; 1116 { 1117 usbd_xfer_handle xfer = ii->xfer; 1118 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1119 uhci_soft_td_t *std; 1120 u_int32_t status = 0, nstatus; 1121 int actlen; 1122 1123 #ifdef DIAGNOSTIC 1124 { 1125 int s = splhigh(); 1126 if (ii->isdone) { 1127 splx(s); 1128 #ifdef UHCI_DEBUG 1129 printf("uhci_idone: ii is done!\n "); 1130 uhci_dump_ii(ii); 1131 #else 1132 printf("uhci_idone: ii=%p is done!\n", ii); 1133 #endif 1134 return; 1135 } 1136 ii->isdone = 1; 1137 splx(s); 1138 } 1139 #endif 1140 1141 if (xfer->status == USBD_CANCELLED || 1142 xfer->status == USBD_TIMEOUT) { 1143 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1144 return; 1145 } 1146 1147 if (xfer->nframes != 0) { 1148 /* Isoc transfer, do things differently. */ 1149 uhci_soft_td_t **stds = upipe->u.iso.stds; 1150 int i, n, nframes; 1151 1152 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1153 1154 nframes = xfer->nframes; 1155 actlen = 0; 1156 n = UXFER(xfer)->curframe; 1157 for (i = 0; i < nframes; i++) { 1158 std = stds[n]; 1159 #ifdef UHCI_DEBUG 1160 if (uhcidebug > 5) { 1161 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1162 uhci_dump_td(std); 1163 } 1164 #endif 1165 if (++n >= UHCI_VFRAMELIST_COUNT) 1166 n = 0; 1167 status = le32toh(std->td.td_status); 1168 actlen += UHCI_TD_GET_ACTLEN(status); 1169 } 1170 upipe->u.iso.inuse -= nframes; 1171 xfer->actlen = actlen; 1172 xfer->status = USBD_NORMAL_COMPLETION; 1173 usb_transfer_complete(xfer); 1174 return; 1175 } 1176 1177 #ifdef UHCI_DEBUG 1178 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1179 ii, xfer, upipe)); 1180 if (uhcidebug > 10) 1181 uhci_dump_tds(ii->stdstart); 1182 #endif 1183 1184 /* The transfer is done, compute actual length and status. */ 1185 actlen = 0; 1186 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1187 nstatus = le32toh(std->td.td_status); 1188 if (nstatus & UHCI_TD_ACTIVE) 1189 break; 1190 1191 status = nstatus; 1192 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1193 UHCI_TD_PID_SETUP) 1194 actlen += UHCI_TD_GET_ACTLEN(status); 1195 } 1196 /* If there are left over TDs we need to update the toggle. */ 1197 if (std != NULL) 1198 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1199 1200 status &= UHCI_TD_ERROR; 1201 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1202 actlen, status)); 1203 xfer->actlen = actlen; 1204 if (status != 0) { 1205 DPRINTFN((status == UHCI_TD_STALLED)*10, 1206 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1207 "status 0x%b\n", 1208 xfer->pipe->device->address, 1209 xfer->pipe->endpoint->edesc->bEndpointAddress, 1210 (int)status, 1211 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1212 "STALLED\30ACTIVE")); 1213 if (status == UHCI_TD_STALLED) 1214 xfer->status = USBD_STALLED; 1215 else 1216 xfer->status = USBD_IOERROR; /* more info XXX */ 1217 } else { 1218 xfer->status = USBD_NORMAL_COMPLETION; 1219 } 1220 usb_transfer_complete(xfer); 1221 } 1222 1223 /* 1224 * Called when a request does not complete. 1225 */ 1226 void 1227 uhci_timeout(addr) 1228 void *addr; 1229 { 1230 uhci_intr_info_t *ii = addr; 1231 1232 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1233 1234 #ifdef UHCI_DEBUG 1235 if (uhcidebug > 10) 1236 uhci_dump_tds(ii->stdstart); 1237 #endif 1238 1239 ii->xfer->device->bus->intr_context++; 1240 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1241 ii->xfer->device->bus->intr_context--; 1242 } 1243 1244 /* 1245 * Wait here until controller claims to have an interrupt. 1246 * Then call uhci_intr and return. Use timeout to avoid waiting 1247 * too long. 1248 * Only used during boot when interrupts are not enabled yet. 1249 */ 1250 void 1251 uhci_waitintr(sc, xfer) 1252 uhci_softc_t *sc; 1253 usbd_xfer_handle xfer; 1254 { 1255 int timo = xfer->timeout; 1256 uhci_intr_info_t *ii; 1257 1258 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1259 1260 xfer->status = USBD_IN_PROGRESS; 1261 for (; timo >= 0; timo--) { 1262 usb_delay_ms(&sc->sc_bus, 1); 1263 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1264 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1265 uhci_intr(sc); 1266 if (xfer->status != USBD_IN_PROGRESS) 1267 return; 1268 } 1269 } 1270 1271 /* Timeout */ 1272 DPRINTF(("uhci_waitintr: timeout\n")); 1273 for (ii = LIST_FIRST(&sc->sc_intrhead); 1274 ii != NULL && ii->xfer != xfer; 1275 ii = LIST_NEXT(ii, list)) 1276 ; 1277 #ifdef DIAGNOSTIC 1278 if (ii == NULL) 1279 panic("uhci_waitintr: lost intr_info\n"); 1280 #endif 1281 uhci_idone(ii); 1282 } 1283 1284 void 1285 uhci_poll(bus) 1286 struct usbd_bus *bus; 1287 { 1288 uhci_softc_t *sc = (uhci_softc_t *)bus; 1289 1290 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1291 uhci_intr(sc); 1292 } 1293 1294 #if 0 1295 void 1296 uhci_reset(sc) 1297 uhci_softc_t *sc; 1298 { 1299 int n; 1300 1301 UHCICMD(sc, UHCI_CMD_HCRESET); 1302 /* The reset bit goes low when the controller is done. */ 1303 for (n = 0; n < UHCI_RESET_TIMEOUT && 1304 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1305 usb_delay_ms(&sc->sc_bus, 1); 1306 if (n >= UHCI_RESET_TIMEOUT) 1307 printf("%s: controller did not reset\n", 1308 USBDEVNAME(sc->sc_bus.bdev)); 1309 } 1310 #endif 1311 1312 usbd_status 1313 uhci_run(sc, run) 1314 uhci_softc_t *sc; 1315 int run; 1316 { 1317 int s, n, running; 1318 u_int16_t cmd; 1319 1320 run = run != 0; 1321 s = splusb(); 1322 DPRINTF(("uhci_run: setting run=%d\n", run)); 1323 cmd = UREAD2(sc, UHCI_CMD); 1324 if (run) 1325 cmd |= UHCI_CMD_RS; 1326 else 1327 cmd &= ~UHCI_CMD_RS; 1328 UHCICMD(sc, cmd); 1329 for(n = 0; n < 10; n++) { 1330 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1331 /* return when we've entered the state we want */ 1332 if (run == running) { 1333 splx(s); 1334 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1335 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1336 return (USBD_NORMAL_COMPLETION); 1337 } 1338 usb_delay_ms(&sc->sc_bus, 1); 1339 } 1340 splx(s); 1341 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1342 run ? "start" : "stop"); 1343 return (USBD_IOERROR); 1344 } 1345 1346 /* 1347 * Memory management routines. 1348 * uhci_alloc_std allocates TDs 1349 * uhci_alloc_sqh allocates QHs 1350 * These two routines do their own free list management, 1351 * partly for speed, partly because allocating DMAable memory 1352 * has page size granularaity so much memory would be wasted if 1353 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1354 */ 1355 1356 uhci_soft_td_t * 1357 uhci_alloc_std(sc) 1358 uhci_softc_t *sc; 1359 { 1360 uhci_soft_td_t *std; 1361 usbd_status err; 1362 int i, offs; 1363 usb_dma_t dma; 1364 1365 if (sc->sc_freetds == NULL) { 1366 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1367 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1368 UHCI_TD_ALIGN, &dma); 1369 if (err) 1370 return (0); 1371 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1372 offs = i * UHCI_STD_SIZE; 1373 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1374 std->physaddr = DMAADDR(&dma) + offs; 1375 std->link.std = sc->sc_freetds; 1376 sc->sc_freetds = std; 1377 } 1378 } 1379 std = sc->sc_freetds; 1380 sc->sc_freetds = std->link.std; 1381 memset(&std->td, 0, sizeof(uhci_td_t)); 1382 return std; 1383 } 1384 1385 void 1386 uhci_free_std(sc, std) 1387 uhci_softc_t *sc; 1388 uhci_soft_td_t *std; 1389 { 1390 #ifdef DIAGNOSTIC 1391 #define TD_IS_FREE 0x12345678 1392 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1393 printf("uhci_free_std: freeing free TD %p\n", std); 1394 return; 1395 } 1396 std->td.td_token = htole32(TD_IS_FREE); 1397 #endif 1398 std->link.std = sc->sc_freetds; 1399 sc->sc_freetds = std; 1400 } 1401 1402 uhci_soft_qh_t * 1403 uhci_alloc_sqh(sc) 1404 uhci_softc_t *sc; 1405 { 1406 uhci_soft_qh_t *sqh; 1407 usbd_status err; 1408 int i, offs; 1409 usb_dma_t dma; 1410 1411 if (sc->sc_freeqhs == NULL) { 1412 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1413 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1414 UHCI_QH_ALIGN, &dma); 1415 if (err) 1416 return (0); 1417 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1418 offs = i * UHCI_SQH_SIZE; 1419 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1420 sqh->physaddr = DMAADDR(&dma) + offs; 1421 sqh->hlink = sc->sc_freeqhs; 1422 sc->sc_freeqhs = sqh; 1423 } 1424 } 1425 sqh = sc->sc_freeqhs; 1426 sc->sc_freeqhs = sqh->hlink; 1427 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1428 return (sqh); 1429 } 1430 1431 void 1432 uhci_free_sqh(sc, sqh) 1433 uhci_softc_t *sc; 1434 uhci_soft_qh_t *sqh; 1435 { 1436 sqh->hlink = sc->sc_freeqhs; 1437 sc->sc_freeqhs = sqh; 1438 } 1439 1440 void 1441 uhci_free_std_chain(sc, std, stdend) 1442 uhci_softc_t *sc; 1443 uhci_soft_td_t *std; 1444 uhci_soft_td_t *stdend; 1445 { 1446 uhci_soft_td_t *p; 1447 1448 for (; std != stdend; std = p) { 1449 p = std->link.std; 1450 uhci_free_std(sc, std); 1451 } 1452 } 1453 1454 usbd_status 1455 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1456 struct uhci_pipe *upipe; 1457 uhci_softc_t *sc; 1458 int len, rd; 1459 u_int16_t flags; 1460 usb_dma_t *dma; 1461 uhci_soft_td_t **sp, **ep; 1462 { 1463 uhci_soft_td_t *p, *lastp; 1464 uhci_physaddr_t lastlink; 1465 int i, ntd, l, tog, maxp; 1466 u_int32_t status; 1467 int addr = upipe->pipe.device->address; 1468 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1469 1470 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1471 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1472 upipe->pipe.device->lowspeed, flags)); 1473 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1474 if (maxp == 0) { 1475 printf("uhci_alloc_std_chain: maxp=0\n"); 1476 return (USBD_INVAL); 1477 } 1478 ntd = (len + maxp - 1) / maxp; 1479 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1480 ntd++; 1481 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1482 if (ntd == 0) { 1483 *sp = *ep = 0; 1484 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1485 return (USBD_NORMAL_COMPLETION); 1486 } 1487 tog = upipe->nexttoggle; 1488 if (ntd % 2 == 0) 1489 tog ^= 1; 1490 upipe->nexttoggle = tog ^ 1; 1491 lastp = 0; 1492 lastlink = UHCI_PTR_T; 1493 ntd--; 1494 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1495 if (upipe->pipe.device->lowspeed) 1496 status |= UHCI_TD_LS; 1497 if (flags & USBD_SHORT_XFER_OK) 1498 status |= UHCI_TD_SPD; 1499 for (i = ntd; i >= 0; i--) { 1500 p = uhci_alloc_std(sc); 1501 if (p == NULL) { 1502 uhci_free_std_chain(sc, lastp, 0); 1503 return (USBD_NOMEM); 1504 } 1505 p->link.std = lastp; 1506 if (lastlink == UHCI_PTR_T) 1507 p->td.td_link = htole32(lastlink); 1508 else 1509 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1510 lastp = p; 1511 lastlink = p->physaddr; 1512 p->td.td_status = htole32(status); 1513 if (i == ntd) { 1514 /* last TD */ 1515 l = len % maxp; 1516 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1517 l = maxp; 1518 *ep = p; 1519 } else 1520 l = maxp; 1521 p->td.td_token = 1522 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1523 UHCI_TD_OUT(l, endpt, addr, tog)); 1524 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1525 tog ^= 1; 1526 } 1527 *sp = lastp; 1528 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1529 upipe->nexttoggle)); 1530 return (USBD_NORMAL_COMPLETION); 1531 } 1532 1533 void 1534 uhci_device_clear_toggle(pipe) 1535 usbd_pipe_handle pipe; 1536 { 1537 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1538 upipe->nexttoggle = 0; 1539 } 1540 1541 void 1542 uhci_noop(pipe) 1543 usbd_pipe_handle pipe; 1544 { 1545 } 1546 1547 usbd_status 1548 uhci_device_bulk_transfer(xfer) 1549 usbd_xfer_handle xfer; 1550 { 1551 usbd_status err; 1552 1553 /* Insert last in queue. */ 1554 err = usb_insert_transfer(xfer); 1555 if (err) 1556 return (err); 1557 1558 /* 1559 * Pipe isn't running (otherwise err would be USBD_INPROG), 1560 * so start it first. 1561 */ 1562 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1563 } 1564 1565 usbd_status 1566 uhci_device_bulk_start(xfer) 1567 usbd_xfer_handle xfer; 1568 { 1569 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1570 usbd_device_handle dev = upipe->pipe.device; 1571 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1572 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1573 uhci_soft_td_t *data, *dataend; 1574 uhci_soft_qh_t *sqh; 1575 usbd_status err; 1576 int len, isread, endpt; 1577 int s; 1578 1579 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1580 xfer, xfer->length, xfer->flags)); 1581 1582 if (sc->sc_dying) 1583 return (USBD_IOERROR); 1584 1585 #ifdef DIAGNOSTIC 1586 if (xfer->rqflags & URQ_REQUEST) 1587 panic("uhci_device_bulk_transfer: a request\n"); 1588 #endif 1589 1590 len = xfer->length; 1591 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1592 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1593 sqh = upipe->u.bulk.sqh; 1594 1595 upipe->u.bulk.isread = isread; 1596 upipe->u.bulk.length = len; 1597 1598 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1599 &xfer->dmabuf, &data, &dataend); 1600 if (err) 1601 return (err); 1602 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1603 1604 #ifdef UHCI_DEBUG 1605 if (uhcidebug > 8) { 1606 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1607 uhci_dump_tds(data); 1608 } 1609 #endif 1610 1611 /* Set up interrupt info. */ 1612 ii->xfer = xfer; 1613 ii->stdstart = data; 1614 ii->stdend = dataend; 1615 usb_callout_init(ii->timeout_handle); 1616 #ifdef DIAGNOSTIC 1617 if (!ii->isdone) { 1618 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1619 } 1620 ii->isdone = 0; 1621 #endif 1622 1623 sqh->elink = data; 1624 sqh->qh.qh_elink = htole32(data->physaddr); 1625 1626 s = splusb(); 1627 uhci_add_bulk(sc, sqh); 1628 uhci_add_intr_info(sc, ii); 1629 1630 if (xfer->timeout && !sc->sc_bus.use_polling) { 1631 usb_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 1632 uhci_timeout, ii); 1633 } 1634 xfer->status = USBD_IN_PROGRESS; 1635 splx(s); 1636 1637 #ifdef UHCI_DEBUG 1638 if (uhcidebug > 10) { 1639 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1640 uhci_dump_tds(data); 1641 } 1642 #endif 1643 1644 if (sc->sc_bus.use_polling) 1645 uhci_waitintr(sc, xfer); 1646 1647 return (USBD_IN_PROGRESS); 1648 } 1649 1650 /* Abort a device bulk request. */ 1651 void 1652 uhci_device_bulk_abort(xfer) 1653 usbd_xfer_handle xfer; 1654 { 1655 DPRINTF(("uhci_device_bulk_abort:\n")); 1656 uhci_abort_xfer(xfer, USBD_CANCELLED); 1657 } 1658 1659 /* 1660 * Aborting a xfer on the UHCI host controller is tricky. 1661 * The problem is that the HC can asynchronously manipulate 1662 * the very fields in the QH and TD that we need to abort a 1663 * xfer. 1664 * The problematic field are qh_elink (which points to the first 1665 * TD) and td_status which contains the active flag. 1666 * 1667 * Here's my current (convoluted) strategy: 1668 * - Block HC interrupt. We need this to check if the xfer 1669 * might already be over. If called outside splusb() this can 1670 * happen. 1671 * - Check if an abort is already in progress (see below), if so 1672 * just link out the xfer, run the callback, and return. 1673 * - Otherwise, flag that abort is in progress. 1674 * - Remove the QH for the xfer from the list of QHs (this 1675 * can be done safely). 1676 * - Remove the transaction from the list of transactions examined 1677 * when the HC interrupts. 1678 * At this point we know that the transaction will never be considered 1679 * by the interrupt routine. The trouble we have is that the HC might 1680 * be following the chain of TDs rooted at the unlinked QH because it 1681 * started before the unlink. 1682 * We would like to run the xfer callback function at this point 1683 * to inform it that the xfer has been aborted, but running the 1684 * callback might result in freeing the xfer. This would be bad 1685 * since the HC might still use it. So we need to avoid this by: 1686 * - Disable the active flag in all TD belonging to the xfer. 1687 * If we do this we can guarantee that the HC will execute at most one 1688 * TD after we turn off the flag in the last TD. 1689 * - Busy-wait until the HC has finished with the TD. We do this by 1690 * keeping track of the longest TD and using delay() for the time it 1691 * takes to complete it (one byte takes a little less than 1 (LS 6) us). 1692 * - Run the callback routine, since at this point the HC can not be 1693 * using any TDs in the xfer. 1694 * We still cannot manipulate the qh_elink field in the QH since the 1695 * HC might be following TDs further down the chain for another 1 ms. 1696 * So... 1697 * - Set up a timeout 1 ms into the future. 1698 * - Turn on interrupts. 1699 * - Return. 1700 * 1701 * When the timeout happens we do the following: 1702 * - Check if the qh_elink field points anywhere in the TD chain we had 1703 * when the timeout was set up. If it is, leave qh_elink alone, 1704 * otherwise set qh_elink pointing to the next (if any) xfer in 1705 * the TD chain. 1706 * - Link the QH back where we got it. 1707 * - Turn off flag about abort in progress. 1708 * Done! 1709 * 1710 * The timeout is associated with the pipe and it must be cancelled if 1711 * the pipe is closed. 1712 */ 1713 1714 void 1715 uhci_abort_xfer(xfer, status) 1716 usbd_xfer_handle xfer; 1717 usbd_status status; 1718 { 1719 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1720 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1721 uhci_soft_td_t *std; 1722 int s; 1723 int len, maxlen; 1724 1725 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, xfer->status=%d, status=%d\n", 1726 xfer, xfer->status, status)); 1727 1728 s = splusb(); 1729 1730 /* Transfer is already done. */ 1731 if (xfer->status != USBD_NOT_STARTED && 1732 xfer->status != USBD_IN_PROGRESS) { 1733 splx(s); 1734 return; 1735 } 1736 1737 /* Give xfer the requested abort code. */ 1738 xfer->status = status; 1739 1740 /* If already aborting, bail out early. */ 1741 if (upipe->aborting) { 1742 /* Unlink the xfer from HC */ 1743 /*XXX only one xfer for now*/ 1744 printf("uhci_abort_xfer: abort while aborting\n"); 1745 /* Finalize xfer. */ 1746 usb_transfer_complete(xfer); 1747 splx(s); 1748 return; 1749 } 1750 1751 upipe->aborting = 1; 1752 upipe->abortstart = SIMPLEQ_NEXT(xfer, next); 1753 upipe->abortend = NULL; /* XXX only one xfer for now */ 1754 1755 /* Remove QH(s) from HC schedule. */ 1756 uhci_abort_unlink_qh(upipe); 1757 1758 /* Remove intr_info from list is done by usb_transfer_complete() .*/ 1759 1760 /* Disable active bit. */ 1761 maxlen = 0; 1762 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1763 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1764 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 1765 if (len > maxlen) 1766 maxlen = len; 1767 } 1768 /* compute delay in us */ 1769 if (upipe->pipe.device->lowspeed) 1770 maxlen *= 6; 1771 /* wait for HC to complete TDs */ 1772 delay(maxlen); 1773 1774 /* Run callback and remove from interrupt list. */ 1775 usb_transfer_complete(xfer); 1776 1777 /* Don't timeout, */ 1778 usb_uncallout(ii->timeout_handle, uhci_timeout, ii); 1779 1780 /* Set up final processing. */ 1781 usb_callout(upipe->abort_timeout, hz / USB_FRAMES_PER_SECOND, 1782 uhci_abort_xfer_end, upipe); 1783 1784 /* And return. */ 1785 splx(s); 1786 } 1787 1788 void 1789 uhci_abort_xfer_end(v) 1790 void *v; 1791 { 1792 struct uhci_pipe *upipe = v; 1793 usbd_xfer_handle xf; 1794 uhci_soft_td_t *std; 1795 uhci_soft_qh_t *sqh, **qhs; 1796 int s; 1797 int i, nqhs; 1798 1799 DPRINTFN(5,("uhci_abort_xfer_end: upipe=%p\n", upipe)); 1800 1801 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1802 case UE_CONTROL: 1803 #if 0 1804 qhs = &upipe->u.ctl.sqh; 1805 nqhs = 1; 1806 #else 1807 /* only one ctl transfer; qh unlinked by usb_transfer_complete() */ 1808 nqhs = 0; 1809 #endif 1810 break; 1811 case UE_ISOCHRONOUS: 1812 printf("uhci_abort_xfer_end: iso\n"); 1813 nqhs = 0; 1814 break; 1815 case UE_BULK: 1816 qhs = &upipe->u.bulk.sqh; 1817 nqhs = 1; 1818 break; 1819 case UE_INTERRUPT: 1820 qhs = upipe->u.intr.qhs; 1821 nqhs = upipe->u.intr.npoll; 1822 break; 1823 } 1824 1825 s = splusb(); 1826 1827 for (i = 0; i < nqhs; i++) { 1828 sqh = qhs[i]; 1829 /* Check if inside remaining TD chain. */ 1830 for (xf = upipe->abortstart; xf != NULL; 1831 xf = SIMPLEQ_NEXT(xf, next)) { 1832 for (std = UXFER(xf)->iinfo.stdstart; std != NULL; 1833 std = std->link.std) { 1834 if (std->physaddr == le32toh(sqh->qh.qh_elink)) 1835 goto outside; 1836 } 1837 if (xf == upipe->abortend) 1838 break; 1839 } 1840 if (upipe->abortstart != NULL) { 1841 std = UXFER(upipe->abortstart)->iinfo.stdstart; 1842 DPRINTFN(5,("uhci_abort_xfer_end: new std=%p\n", std)); 1843 sqh->elink = std; 1844 sqh->qh.qh_elink = htole32(std->physaddr); 1845 } else { 1846 DPRINTFN(5,("uhci_abort_xfer_end: new std=NULL\n")); 1847 sqh->elink = NULL; 1848 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1849 } 1850 } 1851 1852 outside: 1853 1854 /* Insert QH again. */ 1855 uhci_abort_relink_qh(upipe); 1856 1857 /* No longer aborting */ 1858 upipe->aborting = 0; 1859 1860 splx(s); 1861 } 1862 1863 void 1864 uhci_abort_unlink_qh(upipe) 1865 struct uhci_pipe *upipe; 1866 { 1867 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1868 uhci_soft_qh_t *sqh, *pqh, **qhs; 1869 int i, npoll; 1870 1871 DPRINTFN(5,("uhci_abort_unlink_qh: sc=%p pipe=%p\n", sc, upipe)); 1872 1873 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1874 case UE_CONTROL: 1875 #if 0 1876 sqh = upipe->u.ctl.sqh; 1877 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1878 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1879 #endif 1880 break; 1881 case UE_ISOCHRONOUS: 1882 printf("uhci_abort_unlink_qh: iso\n"); 1883 break; 1884 case UE_BULK: 1885 sqh = upipe->u.bulk.sqh; 1886 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1887 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1888 break; 1889 case UE_INTERRUPT: 1890 npoll = upipe->u.intr.npoll; 1891 qhs = upipe->u.intr.qhs; 1892 for (i = 0; i < npoll; i++) { 1893 sqh = qhs[i]; 1894 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1895 sqh); 1896 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1897 } 1898 break; 1899 } 1900 } 1901 1902 void 1903 uhci_abort_relink_qh(upipe) 1904 struct uhci_pipe *upipe; 1905 { 1906 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1907 uhci_soft_qh_t *sqh, *pqh, **qhs; 1908 int i, npoll; 1909 1910 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1911 case UE_CONTROL: 1912 #if 0 1913 sqh = upipe->u.ctl.sqh; 1914 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1915 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1916 #endif 1917 break; 1918 case UE_ISOCHRONOUS: 1919 printf("uhci_abort_relink_qh: iso\n"); 1920 break; 1921 case UE_BULK: 1922 sqh = upipe->u.bulk.sqh; 1923 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1924 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1925 break; 1926 break; 1927 case UE_INTERRUPT: 1928 npoll = upipe->u.intr.npoll; 1929 qhs = upipe->u.intr.qhs; 1930 for (i = 0; i < npoll; i++) { 1931 sqh = qhs[i]; 1932 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1933 sqh); 1934 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1935 } 1936 break; 1937 } 1938 } 1939 1940 void 1941 uhci_cancel_abort(pipe) 1942 usbd_pipe_handle pipe; 1943 { 1944 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1945 int s; 1946 1947 s = splusb(); 1948 if (upipe->aborting) { 1949 usb_uncallout(upipe->abort_timeout, uhci_abort_xfer_end, upipe); 1950 upipe->aborting = 0; 1951 } 1952 splx(s); 1953 } 1954 1955 1956 /* Close a device bulk pipe. */ 1957 void 1958 uhci_device_bulk_close(pipe) 1959 usbd_pipe_handle pipe; 1960 { 1961 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1962 usbd_device_handle dev = upipe->pipe.device; 1963 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1964 1965 uhci_cancel_abort(pipe); 1966 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1967 } 1968 1969 usbd_status 1970 uhci_device_ctrl_transfer(xfer) 1971 usbd_xfer_handle xfer; 1972 { 1973 usbd_status err; 1974 1975 /* Insert last in queue. */ 1976 err = usb_insert_transfer(xfer); 1977 if (err) 1978 return (err); 1979 1980 /* 1981 * Pipe isn't running (otherwise err would be USBD_INPROG), 1982 * so start it first. 1983 */ 1984 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1985 } 1986 1987 usbd_status 1988 uhci_device_ctrl_start(xfer) 1989 usbd_xfer_handle xfer; 1990 { 1991 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1992 usbd_status err; 1993 1994 if (sc->sc_dying) 1995 return (USBD_IOERROR); 1996 1997 #ifdef DIAGNOSTIC 1998 if (!(xfer->rqflags & URQ_REQUEST)) 1999 panic("uhci_device_ctrl_transfer: not a request\n"); 2000 #endif 2001 2002 err = uhci_device_request(xfer); 2003 if (err) 2004 return (err); 2005 2006 if (sc->sc_bus.use_polling) 2007 uhci_waitintr(sc, xfer); 2008 return (USBD_IN_PROGRESS); 2009 } 2010 2011 usbd_status 2012 uhci_device_intr_transfer(xfer) 2013 usbd_xfer_handle xfer; 2014 { 2015 usbd_status err; 2016 2017 /* Insert last in queue. */ 2018 err = usb_insert_transfer(xfer); 2019 if (err) 2020 return (err); 2021 2022 /* 2023 * Pipe isn't running (otherwise err would be USBD_INPROG), 2024 * so start it first. 2025 */ 2026 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2027 } 2028 2029 usbd_status 2030 uhci_device_intr_start(xfer) 2031 usbd_xfer_handle xfer; 2032 { 2033 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2034 usbd_device_handle dev = upipe->pipe.device; 2035 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2036 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2037 uhci_soft_td_t *data, *dataend; 2038 uhci_soft_qh_t *sqh; 2039 usbd_status err; 2040 int i, s; 2041 2042 if (sc->sc_dying) 2043 return (USBD_IOERROR); 2044 2045 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2046 xfer, xfer->length, xfer->flags)); 2047 2048 #ifdef DIAGNOSTIC 2049 if (xfer->rqflags & URQ_REQUEST) 2050 panic("uhci_device_intr_transfer: a request\n"); 2051 #endif 2052 2053 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2054 &xfer->dmabuf, &data, &dataend); 2055 if (err) 2056 return (err); 2057 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2058 2059 #ifdef UHCI_DEBUG 2060 if (uhcidebug > 10) { 2061 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2062 uhci_dump_tds(data); 2063 uhci_dump_qh(upipe->u.intr.qhs[0]); 2064 } 2065 #endif 2066 2067 s = splusb(); 2068 /* Set up interrupt info. */ 2069 ii->xfer = xfer; 2070 ii->stdstart = data; 2071 ii->stdend = dataend; 2072 usb_callout_init(ii->timeout_handle); 2073 #ifdef DIAGNOSTIC 2074 if (!ii->isdone) { 2075 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2076 } 2077 ii->isdone = 0; 2078 #endif 2079 2080 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2081 upipe->u.intr.qhs[0])); 2082 for (i = 0; i < upipe->u.intr.npoll; i++) { 2083 sqh = upipe->u.intr.qhs[i]; 2084 sqh->elink = data; 2085 sqh->qh.qh_elink = htole32(data->physaddr); 2086 } 2087 uhci_add_intr_info(sc, ii); 2088 xfer->status = USBD_IN_PROGRESS; 2089 splx(s); 2090 2091 #ifdef UHCI_DEBUG 2092 if (uhcidebug > 10) { 2093 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2094 uhci_dump_tds(data); 2095 uhci_dump_qh(upipe->u.intr.qhs[0]); 2096 } 2097 #endif 2098 2099 return (USBD_IN_PROGRESS); 2100 } 2101 2102 /* Abort a device control request. */ 2103 void 2104 uhci_device_ctrl_abort(xfer) 2105 usbd_xfer_handle xfer; 2106 { 2107 DPRINTF(("uhci_device_ctrl_abort:\n")); 2108 uhci_abort_xfer(xfer, USBD_CANCELLED); 2109 } 2110 2111 /* Close a device control pipe. */ 2112 void 2113 uhci_device_ctrl_close(pipe) 2114 usbd_pipe_handle pipe; 2115 { 2116 uhci_cancel_abort(pipe); 2117 } 2118 2119 /* Abort a device interrupt request. */ 2120 void 2121 uhci_device_intr_abort(xfer) 2122 usbd_xfer_handle xfer; 2123 { 2124 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2125 if (xfer->pipe->intrxfer == xfer) { 2126 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2127 xfer->pipe->intrxfer = 0; 2128 } 2129 uhci_abort_xfer(xfer, USBD_CANCELLED); 2130 } 2131 2132 /* Close a device interrupt pipe. */ 2133 void 2134 uhci_device_intr_close(pipe) 2135 usbd_pipe_handle pipe; 2136 { 2137 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2138 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2139 int i, npoll; 2140 int s; 2141 2142 uhci_cancel_abort(pipe); 2143 2144 /* Unlink descriptors from controller data structures. */ 2145 npoll = upipe->u.intr.npoll; 2146 s = splusb(); 2147 for (i = 0; i < npoll; i++) 2148 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2149 splx(s); 2150 2151 /* 2152 * We now have to wait for any activity on the physical 2153 * descriptors to stop. 2154 */ 2155 usb_delay_ms(&sc->sc_bus, 2); 2156 2157 for(i = 0; i < npoll; i++) 2158 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2159 free(upipe->u.intr.qhs, M_USBHC); 2160 2161 /* XXX free other resources */ 2162 } 2163 2164 usbd_status 2165 uhci_device_request(xfer) 2166 usbd_xfer_handle xfer; 2167 { 2168 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2169 usb_device_request_t *req = &xfer->request; 2170 usbd_device_handle dev = upipe->pipe.device; 2171 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2172 int addr = dev->address; 2173 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2174 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2175 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2176 uhci_soft_qh_t *sqh; 2177 int len; 2178 u_int32_t ls; 2179 usbd_status err; 2180 int isread; 2181 int s; 2182 2183 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2184 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2185 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2186 UGETW(req->wIndex), UGETW(req->wLength), 2187 addr, endpt)); 2188 2189 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2190 isread = req->bmRequestType & UT_READ; 2191 len = UGETW(req->wLength); 2192 2193 setup = upipe->u.ctl.setup; 2194 stat = upipe->u.ctl.stat; 2195 sqh = upipe->u.ctl.sqh; 2196 2197 /* Set up data transaction */ 2198 if (len != 0) { 2199 upipe->nexttoggle = 1; 2200 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2201 &xfer->dmabuf, &data, &dataend); 2202 if (err) 2203 return (err); 2204 next = data; 2205 dataend->link.std = stat; 2206 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 2207 } else { 2208 next = stat; 2209 } 2210 upipe->u.ctl.length = len; 2211 2212 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2213 2214 setup->link.std = next; 2215 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 2216 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2217 UHCI_TD_ACTIVE); 2218 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2219 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2220 2221 stat->link.std = NULL; 2222 stat->td.td_link = htole32(UHCI_PTR_T); 2223 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2224 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2225 stat->td.td_token = 2226 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2227 UHCI_TD_IN (0, endpt, addr, 1)); 2228 stat->td.td_buffer = htole32(0); 2229 2230 #ifdef UHCI_DEBUG 2231 if (uhcidebug > 10) { 2232 DPRINTF(("uhci_device_request: before transfer\n")); 2233 uhci_dump_tds(setup); 2234 } 2235 #endif 2236 2237 /* Set up interrupt info. */ 2238 ii->xfer = xfer; 2239 ii->stdstart = setup; 2240 ii->stdend = stat; 2241 usb_callout_init(ii->timeout_handle); 2242 #ifdef DIAGNOSTIC 2243 if (!ii->isdone) { 2244 printf("uhci_device_request: not done, ii=%p\n", ii); 2245 } 2246 ii->isdone = 0; 2247 #endif 2248 2249 sqh->elink = setup; 2250 sqh->qh.qh_elink = htole32(setup->physaddr); 2251 2252 s = splusb(); 2253 uhci_add_ctrl(sc, sqh); 2254 uhci_add_intr_info(sc, ii); 2255 #ifdef UHCI_DEBUG 2256 if (uhcidebug > 12) { 2257 uhci_soft_td_t *std; 2258 uhci_soft_qh_t *xqh; 2259 uhci_soft_qh_t *sxqh; 2260 int maxqh = 0; 2261 uhci_physaddr_t link; 2262 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2263 for (std = sc->sc_vframes[0].htd, link = 0; 2264 (link & UHCI_PTR_Q) == 0; 2265 std = std->link.std) { 2266 link = le32toh(std->td.td_link); 2267 uhci_dump_td(std); 2268 } 2269 sxqh = (uhci_soft_qh_t *)std; 2270 uhci_dump_qh(sxqh); 2271 for (xqh = sxqh; 2272 xqh != NULL; 2273 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2274 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2275 uhci_dump_qh(xqh); 2276 } 2277 DPRINTF(("Enqueued QH:\n")); 2278 uhci_dump_qh(sqh); 2279 uhci_dump_tds(sqh->elink); 2280 } 2281 #endif 2282 if (xfer->timeout && !sc->sc_bus.use_polling) { 2283 usb_callout(ii->timeout_handle, MS_TO_TICKS(xfer->timeout), 2284 uhci_timeout, ii); 2285 } 2286 xfer->status = USBD_IN_PROGRESS; 2287 splx(s); 2288 2289 return (USBD_NORMAL_COMPLETION); 2290 } 2291 2292 usbd_status 2293 uhci_device_isoc_transfer(xfer) 2294 usbd_xfer_handle xfer; 2295 { 2296 usbd_status err; 2297 2298 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2299 2300 /* Put it on our queue, */ 2301 err = usb_insert_transfer(xfer); 2302 2303 /* bail out on error, */ 2304 if (err && err != USBD_IN_PROGRESS) 2305 return (err); 2306 2307 /* XXX should check inuse here */ 2308 2309 /* insert into schedule, */ 2310 uhci_device_isoc_enter(xfer); 2311 2312 /* and put on interrupt list if the pipe wasn't running */ 2313 if (!err) 2314 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2315 2316 return (err); 2317 } 2318 2319 void 2320 uhci_device_isoc_enter(xfer) 2321 usbd_xfer_handle xfer; 2322 { 2323 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2324 usbd_device_handle dev = upipe->pipe.device; 2325 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2326 struct iso *iso = &upipe->u.iso; 2327 uhci_soft_td_t *std; 2328 u_int32_t buf, len, status; 2329 int s, i, next, nframes; 2330 2331 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2332 "nframes=%d\n", 2333 iso->inuse, iso->next, xfer, xfer->nframes)); 2334 2335 if (sc->sc_dying) 2336 return; 2337 2338 if (xfer->status == USBD_IN_PROGRESS) { 2339 /* This request has already been entered into the frame list */ 2340 /* XXX */ 2341 } 2342 2343 #ifdef DIAGNOSTIC 2344 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2345 printf("uhci_device_isoc_enter: overflow!\n"); 2346 #endif 2347 2348 next = iso->next; 2349 if (next == -1) { 2350 /* Not in use yet, schedule it a few frames ahead. */ 2351 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2352 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2353 } 2354 2355 xfer->status = USBD_IN_PROGRESS; 2356 UXFER(xfer)->curframe = next; 2357 2358 buf = DMAADDR(&xfer->dmabuf); 2359 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2360 UHCI_TD_ACTIVE | 2361 UHCI_TD_IOS); 2362 nframes = xfer->nframes; 2363 s = splusb(); 2364 for (i = 0; i < nframes; i++) { 2365 std = iso->stds[next]; 2366 if (++next >= UHCI_VFRAMELIST_COUNT) 2367 next = 0; 2368 len = xfer->frlengths[i]; 2369 std->td.td_buffer = htole32(buf); 2370 if (i == nframes - 1) 2371 status |= UHCI_TD_IOC; 2372 std->td.td_status = htole32(status); 2373 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2374 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2375 #ifdef UHCI_DEBUG 2376 if (uhcidebug > 5) { 2377 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2378 uhci_dump_td(std); 2379 } 2380 #endif 2381 buf += len; 2382 } 2383 iso->next = next; 2384 iso->inuse += xfer->nframes; 2385 2386 splx(s); 2387 } 2388 2389 usbd_status 2390 uhci_device_isoc_start(xfer) 2391 usbd_xfer_handle xfer; 2392 { 2393 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2394 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2395 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2396 uhci_soft_td_t *end; 2397 int s, i; 2398 2399 if (sc->sc_dying) 2400 return (USBD_IOERROR); 2401 2402 #ifdef DIAGNOSTIC 2403 if (xfer->status != USBD_IN_PROGRESS) 2404 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2405 #endif 2406 2407 /* Find the last TD */ 2408 i = UXFER(xfer)->curframe + xfer->nframes; 2409 if (i >= UHCI_VFRAMELIST_COUNT) 2410 i -= UHCI_VFRAMELIST_COUNT; 2411 end = upipe->u.iso.stds[i]; 2412 2413 s = splusb(); 2414 2415 /* Set up interrupt info. */ 2416 ii->xfer = xfer; 2417 ii->stdstart = end; 2418 ii->stdend = end; 2419 usb_callout_init(ii->timeout_handle); 2420 #ifdef DIAGNOSTIC 2421 if (!ii->isdone) { 2422 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2423 } 2424 ii->isdone = 0; 2425 #endif 2426 uhci_add_intr_info(sc, ii); 2427 2428 splx(s); 2429 2430 return (USBD_IN_PROGRESS); 2431 } 2432 2433 void 2434 uhci_device_isoc_abort(xfer) 2435 usbd_xfer_handle xfer; 2436 { 2437 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2438 uhci_soft_td_t **stds = upipe->u.iso.stds; 2439 uhci_soft_td_t *std; 2440 int i, n, s, nframes, maxlen, len; 2441 2442 s = splusb(); 2443 2444 /* Transfer is already done. */ 2445 if (xfer->status != USBD_NOT_STARTED && 2446 xfer->status != USBD_IN_PROGRESS) { 2447 splx(s); 2448 return; 2449 } 2450 2451 /* Give xfer the requested abort code. */ 2452 xfer->status = USBD_CANCELLED; 2453 2454 /* make hardware ignore it, */ 2455 nframes = xfer->nframes; 2456 n = UXFER(xfer)->curframe; 2457 maxlen = 0; 2458 for (i = 0; i < nframes; i++) { 2459 std = stds[n]; 2460 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2461 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 2462 if (len > maxlen) 2463 maxlen = len; 2464 if (++n >= UHCI_VFRAMELIST_COUNT) 2465 n = 0; 2466 } 2467 2468 /* and wait until we are sure the hardware has finished. */ 2469 delay(maxlen); 2470 2471 /* Run callback and remove from interrupt list. */ 2472 usb_transfer_complete(xfer); 2473 2474 splx(s); 2475 } 2476 2477 void 2478 uhci_device_isoc_close(pipe) 2479 usbd_pipe_handle pipe; 2480 { 2481 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2482 usbd_device_handle dev = upipe->pipe.device; 2483 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2484 uhci_soft_td_t *std, *vstd; 2485 struct iso *iso; 2486 int i, s; 2487 2488 /* 2489 * Make sure all TDs are marked as inactive. 2490 * Wait for completion. 2491 * Unschedule. 2492 * Deallocate. 2493 */ 2494 iso = &upipe->u.iso; 2495 2496 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2497 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2498 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2499 2500 s = splusb(); 2501 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2502 std = iso->stds[i]; 2503 for (vstd = sc->sc_vframes[i].htd; 2504 vstd != NULL && vstd->link.std != std; 2505 vstd = vstd->link.std) 2506 ; 2507 if (vstd == NULL) { 2508 /*panic*/ 2509 printf("uhci_device_isoc_close: %p not found\n", std); 2510 splx(s); 2511 return; 2512 } 2513 vstd->link = std->link; 2514 vstd->td.td_link = std->td.td_link; 2515 uhci_free_std(sc, std); 2516 } 2517 splx(s); 2518 2519 free(iso->stds, M_USBHC); 2520 } 2521 2522 usbd_status 2523 uhci_setup_isoc(pipe) 2524 usbd_pipe_handle pipe; 2525 { 2526 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2527 usbd_device_handle dev = upipe->pipe.device; 2528 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2529 int addr = upipe->pipe.device->address; 2530 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2531 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2532 uhci_soft_td_t *std, *vstd; 2533 u_int32_t token; 2534 struct iso *iso; 2535 int i, s; 2536 2537 iso = &upipe->u.iso; 2538 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2539 M_USBHC, M_WAITOK); 2540 2541 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2542 UHCI_TD_OUT(0, endpt, addr, 0); 2543 2544 /* Allocate the TDs and mark as inactive; */ 2545 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2546 std = uhci_alloc_std(sc); 2547 if (std == 0) 2548 goto bad; 2549 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2550 std->td.td_token = htole32(token); 2551 iso->stds[i] = std; 2552 } 2553 2554 /* Insert TDs into schedule. */ 2555 s = splusb(); 2556 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2557 std = iso->stds[i]; 2558 vstd = sc->sc_vframes[i].htd; 2559 std->link = vstd->link; 2560 std->td.td_link = vstd->td.td_link; 2561 vstd->link.std = std; 2562 vstd->td.td_link = htole32(std->physaddr); 2563 } 2564 splx(s); 2565 2566 iso->next = -1; 2567 iso->inuse = 0; 2568 2569 return (USBD_NORMAL_COMPLETION); 2570 2571 bad: 2572 while (--i >= 0) 2573 uhci_free_std(sc, iso->stds[i]); 2574 free(iso->stds, M_USBHC); 2575 return (USBD_NOMEM); 2576 } 2577 2578 void 2579 uhci_device_isoc_done(xfer) 2580 usbd_xfer_handle xfer; 2581 { 2582 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2583 2584 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2585 2586 #ifdef DIAGNOSTIC 2587 if (xfer->isfree) { 2588 printf("uhci_device_isoc_done: xfer=%p is free\n", xfer); 2589 return; 2590 } 2591 2592 if (ii->stdend == NULL) { 2593 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2594 #ifdef UHCI_DEBUG 2595 uhci_dump_ii(ii); 2596 #endif 2597 return; 2598 } 2599 #endif 2600 2601 /* Turn off the interrupt since it is active even if the TD is not. */ 2602 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2603 2604 uhci_del_intr_info(ii); /* remove from active list */ 2605 } 2606 2607 void 2608 uhci_device_intr_done(xfer) 2609 usbd_xfer_handle xfer; 2610 { 2611 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2612 uhci_softc_t *sc = ii->sc; 2613 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2614 uhci_soft_qh_t *sqh; 2615 int i, npoll; 2616 2617 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2618 2619 npoll = upipe->u.intr.npoll; 2620 for(i = 0; i < npoll; i++) { 2621 sqh = upipe->u.intr.qhs[i]; 2622 sqh->elink = 0; 2623 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2624 } 2625 uhci_free_std_chain(sc, ii->stdstart, 0); 2626 2627 /* XXX Wasteful. */ 2628 if (xfer->pipe->repeat) { 2629 uhci_soft_td_t *data, *dataend; 2630 2631 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2632 2633 /* This alloc cannot fail since we freed the chain above. */ 2634 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2635 &xfer->dmabuf, &data, &dataend); 2636 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2637 2638 #ifdef UHCI_DEBUG 2639 if (uhcidebug > 10) { 2640 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2641 uhci_dump_tds(data); 2642 uhci_dump_qh(upipe->u.intr.qhs[0]); 2643 } 2644 #endif 2645 2646 ii->stdstart = data; 2647 ii->stdend = dataend; 2648 usb_callout_init(ii->timeout_handle); 2649 #ifdef DIAGNOSTIC 2650 if (!ii->isdone) { 2651 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2652 } 2653 ii->isdone = 0; 2654 #endif 2655 for (i = 0; i < npoll; i++) { 2656 sqh = upipe->u.intr.qhs[i]; 2657 sqh->elink = data; 2658 sqh->qh.qh_elink = htole32(data->physaddr); 2659 } 2660 xfer->status = USBD_IN_PROGRESS; 2661 /* The ii is already on the examined list, just leave it. */ 2662 } else { 2663 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2664 uhci_del_intr_info(ii); 2665 } 2666 } 2667 2668 /* Deallocate request data structures */ 2669 void 2670 uhci_device_ctrl_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 #ifdef DIAGNOSTIC 2678 if (!(xfer->rqflags & URQ_REQUEST)) 2679 panic("uhci_ctrl_done: not a request\n"); 2680 #endif 2681 2682 DPRINTF(("uhci_device_ctrl_done xfer=%p ii=%p\n", xfer, ii)); 2683 uhci_del_intr_info(ii); /* remove from active list */ 2684 2685 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2686 2687 if (upipe->u.ctl.length != 0) 2688 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2689 2690 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2691 } 2692 2693 /* Deallocate request data structures */ 2694 void 2695 uhci_device_bulk_done(xfer) 2696 usbd_xfer_handle xfer; 2697 { 2698 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2699 uhci_softc_t *sc = ii->sc; 2700 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2701 2702 uhci_del_intr_info(ii); /* remove from active list */ 2703 2704 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2705 2706 uhci_free_std_chain(sc, ii->stdstart, 0); 2707 2708 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2709 } 2710 2711 /* Add interrupt QH, called with vflock. */ 2712 void 2713 uhci_add_intr(sc, sqh) 2714 uhci_softc_t *sc; 2715 uhci_soft_qh_t *sqh; 2716 { 2717 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2718 uhci_soft_qh_t *eqh; 2719 2720 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2721 2722 eqh = vf->eqh; 2723 sqh->hlink = eqh->hlink; 2724 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2725 eqh->hlink = sqh; 2726 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2727 vf->eqh = sqh; 2728 vf->bandwidth++; 2729 } 2730 2731 /* Remove interrupt QH, called with vflock. */ 2732 void 2733 uhci_remove_intr(sc, sqh) 2734 uhci_softc_t *sc; 2735 uhci_soft_qh_t *sqh; 2736 { 2737 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2738 uhci_soft_qh_t *pqh; 2739 2740 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2741 2742 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2743 pqh->hlink = sqh->hlink; 2744 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2745 if (vf->eqh == sqh) 2746 vf->eqh = pqh; 2747 vf->bandwidth--; 2748 } 2749 2750 usbd_status 2751 uhci_device_setintr(sc, upipe, ival) 2752 uhci_softc_t *sc; 2753 struct uhci_pipe *upipe; 2754 int ival; 2755 { 2756 uhci_soft_qh_t *sqh; 2757 int i, npoll, s; 2758 u_int bestbw, bw, bestoffs, offs; 2759 2760 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2761 if (ival == 0) { 2762 printf("uhci_setintr: 0 interval\n"); 2763 return (USBD_INVAL); 2764 } 2765 2766 if (ival > UHCI_VFRAMELIST_COUNT) 2767 ival = UHCI_VFRAMELIST_COUNT; 2768 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2769 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2770 2771 upipe->u.intr.npoll = npoll; 2772 upipe->u.intr.qhs = 2773 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2774 2775 /* 2776 * Figure out which offset in the schedule that has most 2777 * bandwidth left over. 2778 */ 2779 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2780 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2781 for (bw = i = 0; i < npoll; i++) 2782 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2783 if (bw < bestbw) { 2784 bestbw = bw; 2785 bestoffs = offs; 2786 } 2787 } 2788 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2789 2790 for(i = 0; i < npoll; i++) { 2791 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2792 sqh->elink = 0; 2793 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2794 sqh->pos = MOD(i * ival + bestoffs); 2795 } 2796 #undef MOD 2797 2798 s = splusb(); 2799 /* Enter QHs into the controller data structures. */ 2800 for(i = 0; i < npoll; i++) 2801 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2802 splx(s); 2803 2804 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2805 return (USBD_NORMAL_COMPLETION); 2806 } 2807 2808 /* Open a new pipe. */ 2809 usbd_status 2810 uhci_open(pipe) 2811 usbd_pipe_handle pipe; 2812 { 2813 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2814 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2815 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2816 usbd_status err; 2817 int ival; 2818 2819 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2820 pipe, pipe->device->address, 2821 ed->bEndpointAddress, sc->sc_addr)); 2822 2823 upipe->aborting = 0; 2824 upipe->nexttoggle = 0; 2825 2826 if (pipe->device->address == sc->sc_addr) { 2827 switch (ed->bEndpointAddress) { 2828 case USB_CONTROL_ENDPOINT: 2829 pipe->methods = &uhci_root_ctrl_methods; 2830 break; 2831 case UE_DIR_IN | UHCI_INTR_ENDPT: 2832 pipe->methods = &uhci_root_intr_methods; 2833 break; 2834 default: 2835 return (USBD_INVAL); 2836 } 2837 } else { 2838 switch (ed->bmAttributes & UE_XFERTYPE) { 2839 case UE_CONTROL: 2840 pipe->methods = &uhci_device_ctrl_methods; 2841 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2842 if (upipe->u.ctl.sqh == NULL) 2843 goto bad; 2844 upipe->u.ctl.setup = uhci_alloc_std(sc); 2845 if (upipe->u.ctl.setup == NULL) { 2846 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2847 goto bad; 2848 } 2849 upipe->u.ctl.stat = uhci_alloc_std(sc); 2850 if (upipe->u.ctl.stat == NULL) { 2851 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2852 uhci_free_std(sc, upipe->u.ctl.setup); 2853 goto bad; 2854 } 2855 err = usb_allocmem(&sc->sc_bus, 2856 sizeof(usb_device_request_t), 2857 0, &upipe->u.ctl.reqdma); 2858 if (err) { 2859 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2860 uhci_free_std(sc, upipe->u.ctl.setup); 2861 uhci_free_std(sc, upipe->u.ctl.stat); 2862 goto bad; 2863 } 2864 break; 2865 case UE_INTERRUPT: 2866 pipe->methods = &uhci_device_intr_methods; 2867 ival = pipe->interval; 2868 if (ival == USBD_DEFAULT_INTERVAL) 2869 ival = ed->bInterval; 2870 return (uhci_device_setintr(sc, upipe, ival)); 2871 case UE_ISOCHRONOUS: 2872 pipe->methods = &uhci_device_isoc_methods; 2873 return (uhci_setup_isoc(pipe)); 2874 case UE_BULK: 2875 pipe->methods = &uhci_device_bulk_methods; 2876 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2877 if (upipe->u.bulk.sqh == NULL) 2878 goto bad; 2879 break; 2880 } 2881 } 2882 return (USBD_NORMAL_COMPLETION); 2883 2884 bad: 2885 return (USBD_NOMEM); 2886 } 2887 2888 /* 2889 * Data structures and routines to emulate the root hub. 2890 */ 2891 usb_device_descriptor_t uhci_devd = { 2892 USB_DEVICE_DESCRIPTOR_SIZE, 2893 UDESC_DEVICE, /* type */ 2894 {0x00, 0x01}, /* USB version */ 2895 UDCLASS_HUB, /* class */ 2896 UDSUBCLASS_HUB, /* subclass */ 2897 0, /* protocol */ 2898 64, /* max packet */ 2899 {0},{0},{0x00,0x01}, /* device id */ 2900 1,2,0, /* string indicies */ 2901 1 /* # of configurations */ 2902 }; 2903 2904 usb_config_descriptor_t uhci_confd = { 2905 USB_CONFIG_DESCRIPTOR_SIZE, 2906 UDESC_CONFIG, 2907 {USB_CONFIG_DESCRIPTOR_SIZE + 2908 USB_INTERFACE_DESCRIPTOR_SIZE + 2909 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2910 1, 2911 1, 2912 0, 2913 UC_SELF_POWERED, 2914 0 /* max power */ 2915 }; 2916 2917 usb_interface_descriptor_t uhci_ifcd = { 2918 USB_INTERFACE_DESCRIPTOR_SIZE, 2919 UDESC_INTERFACE, 2920 0, 2921 0, 2922 1, 2923 UICLASS_HUB, 2924 UISUBCLASS_HUB, 2925 0, 2926 0 2927 }; 2928 2929 usb_endpoint_descriptor_t uhci_endpd = { 2930 USB_ENDPOINT_DESCRIPTOR_SIZE, 2931 UDESC_ENDPOINT, 2932 UE_DIR_IN | UHCI_INTR_ENDPT, 2933 UE_INTERRUPT, 2934 {8}, 2935 255 2936 }; 2937 2938 usb_hub_descriptor_t uhci_hubd_piix = { 2939 USB_HUB_DESCRIPTOR_SIZE, 2940 UDESC_HUB, 2941 2, 2942 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2943 50, /* power on to power good */ 2944 0, 2945 { 0x00 }, /* both ports are removable */ 2946 }; 2947 2948 int 2949 uhci_str(p, l, s) 2950 usb_string_descriptor_t *p; 2951 int l; 2952 char *s; 2953 { 2954 int i; 2955 2956 if (l == 0) 2957 return (0); 2958 p->bLength = 2 * strlen(s) + 2; 2959 if (l == 1) 2960 return (1); 2961 p->bDescriptorType = UDESC_STRING; 2962 l -= 2; 2963 for (i = 0; s[i] && l > 1; i++, l -= 2) 2964 USETW2(p->bString[i], 0, s[i]); 2965 return (2*i+2); 2966 } 2967 2968 /* 2969 * Simulate a hardware hub by handling all the necessary requests. 2970 */ 2971 usbd_status 2972 uhci_root_ctrl_transfer(xfer) 2973 usbd_xfer_handle xfer; 2974 { 2975 usbd_status err; 2976 2977 /* Insert last in queue. */ 2978 err = usb_insert_transfer(xfer); 2979 if (err) 2980 return (err); 2981 2982 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2983 * start first 2984 */ 2985 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2986 } 2987 2988 usbd_status 2989 uhci_root_ctrl_start(xfer) 2990 usbd_xfer_handle xfer; 2991 { 2992 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2993 usb_device_request_t *req; 2994 void *buf = NULL; 2995 int port, x; 2996 int s, len, value, index, status, change, l, totlen = 0; 2997 usb_port_status_t ps; 2998 usbd_status err; 2999 3000 if (sc->sc_dying) 3001 return (USBD_IOERROR); 3002 3003 #ifdef DIAGNOSTIC 3004 if (!(xfer->rqflags & URQ_REQUEST)) 3005 panic("uhci_root_ctrl_transfer: not a request\n"); 3006 #endif 3007 req = &xfer->request; 3008 3009 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3010 req->bmRequestType, req->bRequest)); 3011 3012 len = UGETW(req->wLength); 3013 value = UGETW(req->wValue); 3014 index = UGETW(req->wIndex); 3015 3016 if (len != 0) 3017 buf = KERNADDR(&xfer->dmabuf); 3018 3019 #define C(x,y) ((x) | ((y) << 8)) 3020 switch(C(req->bRequest, req->bmRequestType)) { 3021 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3022 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3023 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3024 /* 3025 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3026 * for the integrated root hub. 3027 */ 3028 break; 3029 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3030 if (len > 0) { 3031 *(u_int8_t *)buf = sc->sc_conf; 3032 totlen = 1; 3033 } 3034 break; 3035 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3036 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3037 switch(value >> 8) { 3038 case UDESC_DEVICE: 3039 if ((value & 0xff) != 0) { 3040 err = USBD_IOERROR; 3041 goto ret; 3042 } 3043 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3044 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3045 memcpy(buf, &uhci_devd, l); 3046 break; 3047 case UDESC_CONFIG: 3048 if ((value & 0xff) != 0) { 3049 err = USBD_IOERROR; 3050 goto ret; 3051 } 3052 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3053 memcpy(buf, &uhci_confd, l); 3054 buf = (char *)buf + l; 3055 len -= l; 3056 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3057 totlen += l; 3058 memcpy(buf, &uhci_ifcd, l); 3059 buf = (char *)buf + l; 3060 len -= l; 3061 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3062 totlen += l; 3063 memcpy(buf, &uhci_endpd, l); 3064 break; 3065 case UDESC_STRING: 3066 if (len == 0) 3067 break; 3068 *(u_int8_t *)buf = 0; 3069 totlen = 1; 3070 switch (value & 0xff) { 3071 case 1: /* Vendor */ 3072 totlen = uhci_str(buf, len, sc->sc_vendor); 3073 break; 3074 case 2: /* Product */ 3075 totlen = uhci_str(buf, len, "UHCI root hub"); 3076 break; 3077 } 3078 break; 3079 default: 3080 err = USBD_IOERROR; 3081 goto ret; 3082 } 3083 break; 3084 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3085 if (len > 0) { 3086 *(u_int8_t *)buf = 0; 3087 totlen = 1; 3088 } 3089 break; 3090 case C(UR_GET_STATUS, UT_READ_DEVICE): 3091 if (len > 1) { 3092 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3093 totlen = 2; 3094 } 3095 break; 3096 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3097 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3098 if (len > 1) { 3099 USETW(((usb_status_t *)buf)->wStatus, 0); 3100 totlen = 2; 3101 } 3102 break; 3103 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3104 if (value >= USB_MAX_DEVICES) { 3105 err = USBD_IOERROR; 3106 goto ret; 3107 } 3108 sc->sc_addr = value; 3109 break; 3110 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3111 if (value != 0 && value != 1) { 3112 err = USBD_IOERROR; 3113 goto ret; 3114 } 3115 sc->sc_conf = value; 3116 break; 3117 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3118 break; 3119 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3120 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3121 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3122 err = USBD_IOERROR; 3123 goto ret; 3124 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3125 break; 3126 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3127 break; 3128 /* Hub requests */ 3129 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3130 break; 3131 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3132 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3133 "port=%d feature=%d\n", 3134 index, value)); 3135 if (index == 1) 3136 port = UHCI_PORTSC1; 3137 else if (index == 2) 3138 port = UHCI_PORTSC2; 3139 else { 3140 err = USBD_IOERROR; 3141 goto ret; 3142 } 3143 switch(value) { 3144 case UHF_PORT_ENABLE: 3145 x = UREAD2(sc, port); 3146 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3147 break; 3148 case UHF_PORT_SUSPEND: 3149 x = UREAD2(sc, port); 3150 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3151 break; 3152 case UHF_PORT_RESET: 3153 x = UREAD2(sc, port); 3154 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3155 break; 3156 case UHF_C_PORT_CONNECTION: 3157 x = UREAD2(sc, port); 3158 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3159 break; 3160 case UHF_C_PORT_ENABLE: 3161 x = UREAD2(sc, port); 3162 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3163 break; 3164 case UHF_C_PORT_OVER_CURRENT: 3165 x = UREAD2(sc, port); 3166 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3167 break; 3168 case UHF_C_PORT_RESET: 3169 sc->sc_isreset = 0; 3170 err = USBD_NORMAL_COMPLETION; 3171 goto ret; 3172 case UHF_PORT_CONNECTION: 3173 case UHF_PORT_OVER_CURRENT: 3174 case UHF_PORT_POWER: 3175 case UHF_PORT_LOW_SPEED: 3176 case UHF_C_PORT_SUSPEND: 3177 default: 3178 err = USBD_IOERROR; 3179 goto ret; 3180 } 3181 break; 3182 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3183 if (index == 1) 3184 port = UHCI_PORTSC1; 3185 else if (index == 2) 3186 port = UHCI_PORTSC2; 3187 else { 3188 err = USBD_IOERROR; 3189 goto ret; 3190 } 3191 if (len > 0) { 3192 *(u_int8_t *)buf = 3193 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3194 UHCI_PORTSC_LS_SHIFT; 3195 totlen = 1; 3196 } 3197 break; 3198 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3199 if (value != 0) { 3200 err = USBD_IOERROR; 3201 goto ret; 3202 } 3203 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3204 totlen = l; 3205 memcpy(buf, &uhci_hubd_piix, l); 3206 break; 3207 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3208 if (len != 4) { 3209 err = USBD_IOERROR; 3210 goto ret; 3211 } 3212 memset(buf, 0, len); 3213 totlen = len; 3214 break; 3215 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3216 if (index == 1) 3217 port = UHCI_PORTSC1; 3218 else if (index == 2) 3219 port = UHCI_PORTSC2; 3220 else { 3221 err = USBD_IOERROR; 3222 goto ret; 3223 } 3224 if (len != 4) { 3225 err = USBD_IOERROR; 3226 goto ret; 3227 } 3228 x = UREAD2(sc, port); 3229 status = change = 0; 3230 if (x & UHCI_PORTSC_CCS ) 3231 status |= UPS_CURRENT_CONNECT_STATUS; 3232 if (x & UHCI_PORTSC_CSC ) 3233 change |= UPS_C_CONNECT_STATUS; 3234 if (x & UHCI_PORTSC_PE ) 3235 status |= UPS_PORT_ENABLED; 3236 if (x & UHCI_PORTSC_POEDC) 3237 change |= UPS_C_PORT_ENABLED; 3238 if (x & UHCI_PORTSC_OCI ) 3239 status |= UPS_OVERCURRENT_INDICATOR; 3240 if (x & UHCI_PORTSC_OCIC ) 3241 change |= UPS_C_OVERCURRENT_INDICATOR; 3242 if (x & UHCI_PORTSC_SUSP ) 3243 status |= UPS_SUSPEND; 3244 if (x & UHCI_PORTSC_LSDA ) 3245 status |= UPS_LOW_SPEED; 3246 status |= UPS_PORT_POWER; 3247 if (sc->sc_isreset) 3248 change |= UPS_C_PORT_RESET; 3249 USETW(ps.wPortStatus, status); 3250 USETW(ps.wPortChange, change); 3251 l = min(len, sizeof ps); 3252 memcpy(buf, &ps, l); 3253 totlen = l; 3254 break; 3255 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3256 err = USBD_IOERROR; 3257 goto ret; 3258 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3259 break; 3260 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3261 if (index == 1) 3262 port = UHCI_PORTSC1; 3263 else if (index == 2) 3264 port = UHCI_PORTSC2; 3265 else { 3266 err = USBD_IOERROR; 3267 goto ret; 3268 } 3269 switch(value) { 3270 case UHF_PORT_ENABLE: 3271 x = UREAD2(sc, port); 3272 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3273 break; 3274 case UHF_PORT_SUSPEND: 3275 x = UREAD2(sc, port); 3276 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3277 break; 3278 case UHF_PORT_RESET: 3279 x = UREAD2(sc, port); 3280 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3281 usb_delay_ms(&sc->sc_bus, 10); 3282 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3283 delay(100); 3284 x = UREAD2(sc, port); 3285 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3286 delay(100); 3287 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3288 index, UREAD2(sc, port))); 3289 sc->sc_isreset = 1; 3290 break; 3291 case UHF_C_PORT_CONNECTION: 3292 case UHF_C_PORT_ENABLE: 3293 case UHF_C_PORT_OVER_CURRENT: 3294 case UHF_PORT_CONNECTION: 3295 case UHF_PORT_OVER_CURRENT: 3296 case UHF_PORT_POWER: 3297 case UHF_PORT_LOW_SPEED: 3298 case UHF_C_PORT_SUSPEND: 3299 case UHF_C_PORT_RESET: 3300 default: 3301 err = USBD_IOERROR; 3302 goto ret; 3303 } 3304 break; 3305 default: 3306 err = USBD_IOERROR; 3307 goto ret; 3308 } 3309 xfer->actlen = totlen; 3310 err = USBD_NORMAL_COMPLETION; 3311 ret: 3312 xfer->status = err; 3313 s = splusb(); 3314 usb_transfer_complete(xfer); 3315 splx(s); 3316 return (USBD_IN_PROGRESS); 3317 } 3318 3319 /* Abort a root control request. */ 3320 void 3321 uhci_root_ctrl_abort(xfer) 3322 usbd_xfer_handle xfer; 3323 { 3324 /* Nothing to do, all transfers are synchronous. */ 3325 } 3326 3327 /* Close the root pipe. */ 3328 void 3329 uhci_root_ctrl_close(pipe) 3330 usbd_pipe_handle pipe; 3331 { 3332 DPRINTF(("uhci_root_ctrl_close\n")); 3333 } 3334 3335 /* Abort a root interrupt request. */ 3336 void 3337 uhci_root_intr_abort(xfer) 3338 usbd_xfer_handle xfer; 3339 { 3340 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3341 3342 usb_uncallout(xfer->timo_handle, uhci_timo, xfer); 3343 sc->sc_has_timo = NULL; 3344 3345 if (xfer->pipe->intrxfer == xfer) { 3346 DPRINTF(("uhci_root_intr_abort: remove\n")); 3347 xfer->pipe->intrxfer = 0; 3348 } 3349 xfer->status = USBD_CANCELLED; 3350 usb_transfer_complete(xfer); 3351 } 3352 3353 usbd_status 3354 uhci_root_intr_transfer(xfer) 3355 usbd_xfer_handle xfer; 3356 { 3357 usbd_status err; 3358 3359 /* Insert last in queue. */ 3360 err = usb_insert_transfer(xfer); 3361 if (err) 3362 return (err); 3363 3364 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3365 * start first 3366 */ 3367 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3368 } 3369 3370 /* Start a transfer on the root interrupt pipe */ 3371 usbd_status 3372 uhci_root_intr_start(xfer) 3373 usbd_xfer_handle xfer; 3374 { 3375 usbd_pipe_handle pipe = xfer->pipe; 3376 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3377 3378 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3379 xfer, xfer->length, xfer->flags)); 3380 3381 if (sc->sc_dying) 3382 return (USBD_IOERROR); 3383 3384 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3385 usb_callout(xfer->timo_handle, sc->sc_ival, uhci_timo, xfer); 3386 sc->sc_has_timo = xfer; 3387 return (USBD_IN_PROGRESS); 3388 } 3389 3390 /* Close the root interrupt pipe. */ 3391 void 3392 uhci_root_intr_close(pipe) 3393 usbd_pipe_handle pipe; 3394 { 3395 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3396 3397 usb_uncallout(pipe->intrxfer->timo_handle, uhci_timo, pipe->intrxfer); 3398 sc->sc_has_timo = NULL; 3399 DPRINTF(("uhci_root_intr_close\n")); 3400 } 3401
Indexes created Wed Sep 24 05:09:52 GMT 2025