ohci.c revision 1.184.2.1
1 /* $NetBSD: ohci.c,v 1.184.2.1 2008/02/18 21:06:25 mjf Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2004, 2005 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 (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * This code is derived from software contributed to The NetBSD Foundation 12 * by Charles M. Hannum. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the NetBSD 25 * Foundation, Inc. and its contributors. 26 * 4. Neither the name of The NetBSD Foundation nor the names of its 27 * contributors may be used to endorse or promote products derived 28 * from this software without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43 /* 44 * USB Open Host Controller driver. 45 * 46 * OHCI spec: http://www.compaq.com/productinfo/development/openhci.html 47 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 48 */ 49 50 #include <sys/cdefs.h> 51 __KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.184.2.1 2008/02/18 21:06:25 mjf Exp $"); 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/malloc.h> 56 #if defined(__NetBSD__) || defined(__OpenBSD__) 57 #include <sys/kernel.h> 58 #include <sys/device.h> 59 #include <sys/select.h> 60 #include <uvm/uvm_extern.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #include <machine/bus_memio.h> 66 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 67 #include <sys/cpu.h> 68 #endif 69 #endif 70 #include <sys/proc.h> 71 #include <sys/queue.h> 72 73 #include <sys/bus.h> 74 #include <machine/endian.h> 75 76 #include <dev/usb/usb.h> 77 #include <dev/usb/usbdi.h> 78 #include <dev/usb/usbdivar.h> 79 #include <dev/usb/usb_mem.h> 80 #include <dev/usb/usb_quirks.h> 81 82 #include <dev/usb/ohcireg.h> 83 #include <dev/usb/ohcivar.h> 84 #include <dev/usb/usbroothub_subr.h> 85 86 #if defined(__FreeBSD__) 87 #include <machine/clock.h> 88 89 #define delay(d) DELAY(d) 90 #endif 91 92 #if defined(__OpenBSD__) 93 struct cfdriver ohci_cd = { 94 NULL, "ohci", DV_DULL 95 }; 96 #endif 97 98 #ifdef OHCI_DEBUG 99 #define DPRINTF(x) if (ohcidebug) logprintf x 100 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 101 int ohcidebug = 0; 102 #ifndef __NetBSD__ 103 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 104 #endif 105 #else 106 #define DPRINTF(x) 107 #define DPRINTFN(n,x) 108 #endif 109 110 #if BYTE_ORDER == BIG_ENDIAN 111 #define SWAP_ENDIAN OHCI_LITTLE_ENDIAN 112 #else 113 #define SWAP_ENDIAN OHCI_BIG_ENDIAN 114 #endif 115 116 #define O16TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap16(val) : val) 117 #define O32TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap32(val) : val) 118 #define HTOO16(val) O16TOH(val) 119 #define HTOO32(val) O32TOH(val) 120 121 struct ohci_pipe; 122 123 Static ohci_soft_ed_t *ohci_alloc_sed(ohci_softc_t *); 124 Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *); 125 126 Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *); 127 Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *); 128 129 Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *); 130 Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *); 131 132 #if 0 133 Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *, 134 ohci_soft_td_t *); 135 #endif 136 Static usbd_status ohci_alloc_std_chain(struct ohci_pipe *, 137 ohci_softc_t *, int, int, usbd_xfer_handle, 138 ohci_soft_td_t *, ohci_soft_td_t **); 139 140 Static void ohci_shutdown(void *v); 141 Static void ohci_power(int, void *); 142 Static usbd_status ohci_open(usbd_pipe_handle); 143 Static void ohci_poll(struct usbd_bus *); 144 Static void ohci_softintr(void *); 145 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 146 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 147 148 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 149 Static void ohci_add_ed(ohci_softc_t *, ohci_soft_ed_t *, 150 ohci_soft_ed_t *); 151 152 Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 153 Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *); 154 Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *); 155 Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t); 156 Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *); 157 Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *); 158 Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t); 159 160 Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe); 161 Static void ohci_device_isoc_enter(usbd_xfer_handle); 162 163 Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 164 Static void ohci_freem(struct usbd_bus *, usb_dma_t *); 165 166 Static usbd_xfer_handle ohci_allocx(struct usbd_bus *); 167 Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle); 168 169 Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle); 170 Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle); 171 Static void ohci_root_ctrl_abort(usbd_xfer_handle); 172 Static void ohci_root_ctrl_close(usbd_pipe_handle); 173 Static void ohci_root_ctrl_done(usbd_xfer_handle); 174 175 Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle); 176 Static usbd_status ohci_root_intr_start(usbd_xfer_handle); 177 Static void ohci_root_intr_abort(usbd_xfer_handle); 178 Static void ohci_root_intr_close(usbd_pipe_handle); 179 Static void ohci_root_intr_done(usbd_xfer_handle); 180 181 Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle); 182 Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle); 183 Static void ohci_device_ctrl_abort(usbd_xfer_handle); 184 Static void ohci_device_ctrl_close(usbd_pipe_handle); 185 Static void ohci_device_ctrl_done(usbd_xfer_handle); 186 187 Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle); 188 Static usbd_status ohci_device_bulk_start(usbd_xfer_handle); 189 Static void ohci_device_bulk_abort(usbd_xfer_handle); 190 Static void ohci_device_bulk_close(usbd_pipe_handle); 191 Static void ohci_device_bulk_done(usbd_xfer_handle); 192 193 Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle); 194 Static usbd_status ohci_device_intr_start(usbd_xfer_handle); 195 Static void ohci_device_intr_abort(usbd_xfer_handle); 196 Static void ohci_device_intr_close(usbd_pipe_handle); 197 Static void ohci_device_intr_done(usbd_xfer_handle); 198 199 Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle); 200 Static usbd_status ohci_device_isoc_start(usbd_xfer_handle); 201 Static void ohci_device_isoc_abort(usbd_xfer_handle); 202 Static void ohci_device_isoc_close(usbd_pipe_handle); 203 Static void ohci_device_isoc_done(usbd_xfer_handle); 204 205 Static usbd_status ohci_device_setintr(ohci_softc_t *sc, 206 struct ohci_pipe *pipe, int ival); 207 208 Static void ohci_timeout(void *); 209 Static void ohci_timeout_task(void *); 210 Static void ohci_rhsc_enable(void *); 211 212 Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *); 213 Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status); 214 215 Static void ohci_device_clear_toggle(usbd_pipe_handle pipe); 216 Static void ohci_noop(usbd_pipe_handle pipe); 217 218 #ifdef OHCI_DEBUG 219 Static void ohci_dumpregs(ohci_softc_t *); 220 Static void ohci_dump_tds(ohci_softc_t *, ohci_soft_td_t *); 221 Static void ohci_dump_td(ohci_softc_t *, ohci_soft_td_t *); 222 Static void ohci_dump_ed(ohci_softc_t *, ohci_soft_ed_t *); 223 Static void ohci_dump_itd(ohci_softc_t *, ohci_soft_itd_t *); 224 Static void ohci_dump_itds(ohci_softc_t *, ohci_soft_itd_t *); 225 #endif 226 227 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 228 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 229 #define OWRITE1(sc, r, x) \ 230 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 231 #define OWRITE2(sc, r, x) \ 232 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 233 #define OWRITE4(sc, r, x) \ 234 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 235 static __inline uint8_t 236 OREAD1(ohci_softc_t *sc, bus_size_t r) 237 { 238 239 OBARR(sc); 240 return bus_space_read_1(sc->iot, sc->ioh, r); 241 } 242 243 static __inline uint16_t 244 OREAD2(ohci_softc_t *sc, bus_size_t r) 245 { 246 247 OBARR(sc); 248 return bus_space_read_2(sc->iot, sc->ioh, r); 249 } 250 251 static __inline uint32_t 252 OREAD4(ohci_softc_t *sc, bus_size_t r) 253 { 254 255 OBARR(sc); 256 return bus_space_read_4(sc->iot, sc->ioh, r); 257 } 258 259 /* Reverse the bits in a value 0 .. 31 */ 260 Static u_int8_t revbits[OHCI_NO_INTRS] = 261 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 262 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 263 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 264 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 265 266 struct ohci_pipe { 267 struct usbd_pipe pipe; 268 ohci_soft_ed_t *sed; 269 union { 270 ohci_soft_td_t *td; 271 ohci_soft_itd_t *itd; 272 } tail; 273 /* Info needed for different pipe kinds. */ 274 union { 275 /* Control pipe */ 276 struct { 277 usb_dma_t reqdma; 278 u_int length; 279 ohci_soft_td_t *setup, *data, *stat; 280 } ctl; 281 /* Interrupt pipe */ 282 struct { 283 int nslots; 284 int pos; 285 } intr; 286 /* Bulk pipe */ 287 struct { 288 u_int length; 289 int isread; 290 } bulk; 291 /* Iso pipe */ 292 struct iso { 293 int next, inuse; 294 } iso; 295 } u; 296 }; 297 298 #define OHCI_INTR_ENDPT 1 299 300 Static const struct usbd_bus_methods ohci_bus_methods = { 301 ohci_open, 302 ohci_softintr, 303 ohci_poll, 304 ohci_allocm, 305 ohci_freem, 306 ohci_allocx, 307 ohci_freex, 308 }; 309 310 Static const struct usbd_pipe_methods ohci_root_ctrl_methods = { 311 ohci_root_ctrl_transfer, 312 ohci_root_ctrl_start, 313 ohci_root_ctrl_abort, 314 ohci_root_ctrl_close, 315 ohci_noop, 316 ohci_root_ctrl_done, 317 }; 318 319 Static const struct usbd_pipe_methods ohci_root_intr_methods = { 320 ohci_root_intr_transfer, 321 ohci_root_intr_start, 322 ohci_root_intr_abort, 323 ohci_root_intr_close, 324 ohci_noop, 325 ohci_root_intr_done, 326 }; 327 328 Static const struct usbd_pipe_methods ohci_device_ctrl_methods = { 329 ohci_device_ctrl_transfer, 330 ohci_device_ctrl_start, 331 ohci_device_ctrl_abort, 332 ohci_device_ctrl_close, 333 ohci_noop, 334 ohci_device_ctrl_done, 335 }; 336 337 Static const struct usbd_pipe_methods ohci_device_intr_methods = { 338 ohci_device_intr_transfer, 339 ohci_device_intr_start, 340 ohci_device_intr_abort, 341 ohci_device_intr_close, 342 ohci_device_clear_toggle, 343 ohci_device_intr_done, 344 }; 345 346 Static const struct usbd_pipe_methods ohci_device_bulk_methods = { 347 ohci_device_bulk_transfer, 348 ohci_device_bulk_start, 349 ohci_device_bulk_abort, 350 ohci_device_bulk_close, 351 ohci_device_clear_toggle, 352 ohci_device_bulk_done, 353 }; 354 355 Static const struct usbd_pipe_methods ohci_device_isoc_methods = { 356 ohci_device_isoc_transfer, 357 ohci_device_isoc_start, 358 ohci_device_isoc_abort, 359 ohci_device_isoc_close, 360 ohci_noop, 361 ohci_device_isoc_done, 362 }; 363 364 #if defined(__NetBSD__) || defined(__OpenBSD__) 365 int 366 ohci_activate(device_ptr_t self, enum devact act) 367 { 368 struct ohci_softc *sc = (struct ohci_softc *)self; 369 int rv = 0; 370 371 switch (act) { 372 case DVACT_ACTIVATE: 373 return (EOPNOTSUPP); 374 375 case DVACT_DEACTIVATE: 376 sc->sc_dying = 1; 377 if (sc->sc_child != NULL) 378 rv = config_deactivate(sc->sc_child); 379 break; 380 } 381 return (rv); 382 } 383 384 int 385 ohci_detach(struct ohci_softc *sc, int flags) 386 { 387 int rv = 0; 388 389 if (sc->sc_child != NULL) 390 rv = config_detach(sc->sc_child, flags); 391 392 if (rv != 0) 393 return (rv); 394 395 usb_uncallout(sc->sc_tmo_rhsc, ohci_rhsc_enable, sc); 396 397 #if defined(__NetBSD__) || defined(__OpenBSD__) 398 powerhook_disestablish(sc->sc_powerhook); 399 shutdownhook_disestablish(sc->sc_shutdownhook); 400 #endif 401 402 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 403 404 /* free data structures XXX */ 405 406 return (rv); 407 } 408 #endif 409 410 ohci_soft_ed_t * 411 ohci_alloc_sed(ohci_softc_t *sc) 412 { 413 ohci_soft_ed_t *sed; 414 usbd_status err; 415 int i, offs; 416 usb_dma_t dma; 417 418 if (sc->sc_freeeds == NULL) { 419 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 420 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 421 OHCI_ED_ALIGN, &dma); 422 if (err) 423 return (0); 424 for(i = 0; i < OHCI_SED_CHUNK; i++) { 425 offs = i * OHCI_SED_SIZE; 426 sed = KERNADDR(&dma, offs); 427 sed->physaddr = DMAADDR(&dma, offs); 428 sed->next = sc->sc_freeeds; 429 sc->sc_freeeds = sed; 430 } 431 } 432 sed = sc->sc_freeeds; 433 sc->sc_freeeds = sed->next; 434 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 435 sed->next = 0; 436 return (sed); 437 } 438 439 void 440 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 441 { 442 sed->next = sc->sc_freeeds; 443 sc->sc_freeeds = sed; 444 } 445 446 ohci_soft_td_t * 447 ohci_alloc_std(ohci_softc_t *sc) 448 { 449 ohci_soft_td_t *std; 450 usbd_status err; 451 int i, offs; 452 usb_dma_t dma; 453 int s; 454 455 if (sc->sc_freetds == NULL) { 456 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 457 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 458 OHCI_TD_ALIGN, &dma); 459 if (err) 460 return (NULL); 461 s = splusb(); 462 for(i = 0; i < OHCI_STD_CHUNK; i++) { 463 offs = i * OHCI_STD_SIZE; 464 std = KERNADDR(&dma, offs); 465 std->physaddr = DMAADDR(&dma, offs); 466 std->nexttd = sc->sc_freetds; 467 sc->sc_freetds = std; 468 } 469 splx(s); 470 } 471 472 s = splusb(); 473 std = sc->sc_freetds; 474 sc->sc_freetds = std->nexttd; 475 memset(&std->td, 0, sizeof(ohci_td_t)); 476 std->nexttd = NULL; 477 std->xfer = NULL; 478 ohci_hash_add_td(sc, std); 479 splx(s); 480 481 return (std); 482 } 483 484 void 485 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 486 { 487 int s; 488 489 s = splusb(); 490 ohci_hash_rem_td(sc, std); 491 std->nexttd = sc->sc_freetds; 492 sc->sc_freetds = std; 493 splx(s); 494 } 495 496 usbd_status 497 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 498 int alen, int rd, usbd_xfer_handle xfer, 499 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 500 { 501 ohci_soft_td_t *next, *cur; 502 ohci_physaddr_t dataphys, dataphysend; 503 u_int32_t tdflags; 504 int len, curlen; 505 usb_dma_t *dma = &xfer->dmabuf; 506 u_int16_t flags = xfer->flags; 507 508 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 509 510 len = alen; 511 cur = sp; 512 dataphys = DMAADDR(dma, 0); 513 dataphysend = OHCI_PAGE(dataphys + len - 1); 514 tdflags = HTOO32( 515 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 516 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 517 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 518 519 for (;;) { 520 next = ohci_alloc_std(sc); 521 if (next == NULL) 522 goto nomem; 523 524 /* The OHCI hardware can handle at most one page crossing. */ 525 if (OHCI_PAGE(dataphys) == dataphysend || 526 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 527 /* we can handle it in this TD */ 528 curlen = len; 529 } else { 530 /* must use multiple TDs, fill as much as possible. */ 531 curlen = 2 * OHCI_PAGE_SIZE - 532 (dataphys & (OHCI_PAGE_SIZE-1)); 533 /* the length must be a multiple of the max size */ 534 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 535 #ifdef DIAGNOSTIC 536 if (curlen == 0) 537 panic("ohci_alloc_std: curlen == 0"); 538 #endif 539 } 540 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 541 "dataphysend=0x%08x len=%d curlen=%d\n", 542 dataphys, dataphysend, 543 len, curlen)); 544 len -= curlen; 545 546 cur->td.td_flags = tdflags; 547 cur->td.td_cbp = HTOO32(dataphys); 548 cur->nexttd = next; 549 cur->td.td_nexttd = HTOO32(next->physaddr); 550 cur->td.td_be = HTOO32(dataphys + curlen - 1); 551 cur->len = curlen; 552 cur->flags = OHCI_ADD_LEN; 553 cur->xfer = xfer; 554 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 555 dataphys, dataphys + curlen - 1)); 556 if (len == 0) 557 break; 558 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 559 dataphys += curlen; 560 cur = next; 561 } 562 if (!rd && (flags & USBD_FORCE_SHORT_XFER) && 563 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 564 /* Force a 0 length transfer at the end. */ 565 566 cur = next; 567 next = ohci_alloc_std(sc); 568 if (next == NULL) 569 goto nomem; 570 571 cur->td.td_flags = tdflags; 572 cur->td.td_cbp = 0; /* indicate 0 length packet */ 573 cur->nexttd = next; 574 cur->td.td_nexttd = HTOO32(next->physaddr); 575 cur->td.td_be = ~0; 576 cur->len = 0; 577 cur->flags = 0; 578 cur->xfer = xfer; 579 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 580 } 581 *ep = cur; 582 583 return (USBD_NORMAL_COMPLETION); 584 585 nomem: 586 /* XXX free chain */ 587 return (USBD_NOMEM); 588 } 589 590 #if 0 591 Static void 592 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 593 ohci_soft_td_t *stdend) 594 { 595 ohci_soft_td_t *p; 596 597 for (; std != stdend; std = p) { 598 p = std->nexttd; 599 ohci_free_std(sc, std); 600 } 601 } 602 #endif 603 604 ohci_soft_itd_t * 605 ohci_alloc_sitd(ohci_softc_t *sc) 606 { 607 ohci_soft_itd_t *sitd; 608 usbd_status err; 609 int i, s, offs; 610 usb_dma_t dma; 611 612 if (sc->sc_freeitds == NULL) { 613 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 614 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 615 OHCI_ITD_ALIGN, &dma); 616 if (err) 617 return (NULL); 618 s = splusb(); 619 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 620 offs = i * OHCI_SITD_SIZE; 621 sitd = KERNADDR(&dma, offs); 622 sitd->physaddr = DMAADDR(&dma, offs); 623 sitd->nextitd = sc->sc_freeitds; 624 sc->sc_freeitds = sitd; 625 } 626 splx(s); 627 } 628 629 s = splusb(); 630 sitd = sc->sc_freeitds; 631 sc->sc_freeitds = sitd->nextitd; 632 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 633 sitd->nextitd = NULL; 634 sitd->xfer = NULL; 635 ohci_hash_add_itd(sc, sitd); 636 splx(s); 637 638 #ifdef DIAGNOSTIC 639 sitd->isdone = 0; 640 #endif 641 642 return (sitd); 643 } 644 645 void 646 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 647 { 648 int s; 649 650 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 651 652 #ifdef DIAGNOSTIC 653 if (!sitd->isdone) { 654 panic("ohci_free_sitd: sitd=%p not done", sitd); 655 return; 656 } 657 /* Warn double free */ 658 sitd->isdone = 0; 659 #endif 660 661 s = splusb(); 662 ohci_hash_rem_itd(sc, sitd); 663 sitd->nextitd = sc->sc_freeitds; 664 sc->sc_freeitds = sitd; 665 splx(s); 666 } 667 668 usbd_status 669 ohci_init(ohci_softc_t *sc) 670 { 671 ohci_soft_ed_t *sed, *psed; 672 usbd_status err; 673 int i; 674 u_int32_t s, ctl, rwc, ival, hcr, fm, per, rev, desca, descb; 675 676 DPRINTF(("ohci_init: start\n")); 677 #if defined(__OpenBSD__) 678 printf(","); 679 #else 680 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 681 #endif 682 rev = OREAD4(sc, OHCI_REVISION); 683 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 684 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 685 686 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 687 printf("%s: unsupported OHCI revision\n", 688 USBDEVNAME(sc->sc_bus.bdev)); 689 sc->sc_bus.usbrev = USBREV_UNKNOWN; 690 return (USBD_INVAL); 691 } 692 sc->sc_bus.usbrev = USBREV_1_0; 693 694 for (i = 0; i < OHCI_HASH_SIZE; i++) 695 LIST_INIT(&sc->sc_hash_tds[i]); 696 for (i = 0; i < OHCI_HASH_SIZE; i++) 697 LIST_INIT(&sc->sc_hash_itds[i]); 698 699 SIMPLEQ_INIT(&sc->sc_free_xfers); 700 701 #ifdef __NetBSD__ 702 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 703 USB_MEM_RESERVE); 704 #endif 705 706 /* XXX determine alignment by R/W */ 707 /* Allocate the HCCA area. */ 708 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 709 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 710 if (err) 711 return (err); 712 sc->sc_hcca = KERNADDR(&sc->sc_hccadma, 0); 713 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 714 715 sc->sc_eintrs = OHCI_NORMAL_INTRS; 716 717 /* Allocate dummy ED that starts the control list. */ 718 sc->sc_ctrl_head = ohci_alloc_sed(sc); 719 if (sc->sc_ctrl_head == NULL) { 720 err = USBD_NOMEM; 721 goto bad1; 722 } 723 sc->sc_ctrl_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 724 725 /* Allocate dummy ED that starts the bulk list. */ 726 sc->sc_bulk_head = ohci_alloc_sed(sc); 727 if (sc->sc_bulk_head == NULL) { 728 err = USBD_NOMEM; 729 goto bad2; 730 } 731 sc->sc_bulk_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 732 733 /* Allocate dummy ED that starts the isochronous list. */ 734 sc->sc_isoc_head = ohci_alloc_sed(sc); 735 if (sc->sc_isoc_head == NULL) { 736 err = USBD_NOMEM; 737 goto bad3; 738 } 739 sc->sc_isoc_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 740 741 /* Allocate all the dummy EDs that make up the interrupt tree. */ 742 for (i = 0; i < OHCI_NO_EDS; i++) { 743 sed = ohci_alloc_sed(sc); 744 if (sed == NULL) { 745 while (--i >= 0) 746 ohci_free_sed(sc, sc->sc_eds[i]); 747 err = USBD_NOMEM; 748 goto bad4; 749 } 750 /* All ED fields are set to 0. */ 751 sc->sc_eds[i] = sed; 752 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 753 if (i != 0) 754 psed = sc->sc_eds[(i-1) / 2]; 755 else 756 psed= sc->sc_isoc_head; 757 sed->next = psed; 758 sed->ed.ed_nexted = HTOO32(psed->physaddr); 759 } 760 /* 761 * Fill HCCA interrupt table. The bit reversal is to get 762 * the tree set up properly to spread the interrupts. 763 */ 764 for (i = 0; i < OHCI_NO_INTRS; i++) 765 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 766 HTOO32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 767 768 #ifdef OHCI_DEBUG 769 if (ohcidebug > 15) { 770 for (i = 0; i < OHCI_NO_EDS; i++) { 771 printf("ed#%d ", i); 772 ohci_dump_ed(sc, sc->sc_eds[i]); 773 } 774 printf("iso "); 775 ohci_dump_ed(sc, sc->sc_isoc_head); 776 } 777 #endif 778 779 /* Preserve values programmed by SMM/BIOS but lost over reset. */ 780 ctl = OREAD4(sc, OHCI_CONTROL); 781 rwc = ctl & OHCI_RWC; 782 fm = OREAD4(sc, OHCI_FM_INTERVAL); 783 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 784 descb = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 785 786 /* Determine in what context we are running. */ 787 if (ctl & OHCI_IR) { 788 /* SMM active, request change */ 789 DPRINTF(("ohci_init: SMM active, request owner change\n")); 790 if ((sc->sc_intre & (OHCI_OC | OHCI_MIE)) == 791 (OHCI_OC | OHCI_MIE)) 792 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_MIE); 793 s = OREAD4(sc, OHCI_COMMAND_STATUS); 794 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 795 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 796 usb_delay_ms(&sc->sc_bus, 1); 797 ctl = OREAD4(sc, OHCI_CONTROL); 798 } 799 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_MIE); 800 if ((ctl & OHCI_IR) == 0) { 801 printf("%s: SMM does not respond, resetting\n", 802 USBDEVNAME(sc->sc_bus.bdev)); 803 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 804 goto reset; 805 } 806 #if 0 807 /* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */ 808 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 809 /* BIOS started controller. */ 810 DPRINTF(("ohci_init: BIOS active\n")); 811 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 812 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL | rwc); 813 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 814 } 815 #endif 816 } else { 817 DPRINTF(("ohci_init: cold started\n")); 818 reset: 819 /* Controller was cold started. */ 820 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 821 } 822 823 /* 824 * This reset should not be necessary according to the OHCI spec, but 825 * without it some controllers do not start. 826 */ 827 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 828 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 829 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 830 831 /* We now own the host controller and the bus has been reset. */ 832 833 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 834 /* Nominal time for a reset is 10 us. */ 835 for (i = 0; i < 10; i++) { 836 delay(10); 837 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 838 if (!hcr) 839 break; 840 } 841 if (hcr) { 842 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 843 err = USBD_IOERROR; 844 goto bad5; 845 } 846 #ifdef OHCI_DEBUG 847 if (ohcidebug > 15) 848 ohci_dumpregs(sc); 849 #endif 850 851 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 852 853 /* Set up HC registers. */ 854 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 855 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 856 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 857 /* disable all interrupts and then switch on all desired interrupts */ 858 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 859 /* switch on desired functional features */ 860 ctl = OREAD4(sc, OHCI_CONTROL); 861 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 862 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 863 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL | rwc; 864 /* And finally start it! */ 865 OWRITE4(sc, OHCI_CONTROL, ctl); 866 867 /* 868 * The controller is now OPERATIONAL. Set a some final 869 * registers that should be set earlier, but that the 870 * controller ignores when in the SUSPEND state. 871 */ 872 ival = OHCI_GET_IVAL(fm); 873 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 874 fm |= OHCI_FSMPS(ival) | ival; 875 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 876 per = OHCI_PERIODIC(ival); /* 90% periodic */ 877 OWRITE4(sc, OHCI_PERIODIC_START, per); 878 879 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 880 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 881 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 882 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 883 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 884 885 /* 886 * The AMD756 requires a delay before re-reading the register, 887 * otherwise it will occasionally report 0 ports. 888 */ 889 sc->sc_noport = 0; 890 for (i = 0; i < 10 && sc->sc_noport == 0; i++) { 891 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 892 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 893 } 894 895 #ifdef OHCI_DEBUG 896 if (ohcidebug > 5) 897 ohci_dumpregs(sc); 898 #endif 899 900 /* Set up the bus struct. */ 901 sc->sc_bus.methods = &ohci_bus_methods; 902 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 903 904 #if defined(__NetBSD__) || defined(__OpenBSD__) 905 sc->sc_control = sc->sc_intre = 0; 906 sc->sc_powerhook = powerhook_establish(USBDEVNAME(sc->sc_bus.bdev), 907 ohci_power, sc); 908 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 909 #endif 910 911 usb_callout_init(sc->sc_tmo_rhsc); 912 913 /* Finally, turn on interrupts. */ 914 DPRINTFN(1,("ohci_init: enabling\n")); 915 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 916 917 return (USBD_NORMAL_COMPLETION); 918 919 bad5: 920 for (i = 0; i < OHCI_NO_EDS; i++) 921 ohci_free_sed(sc, sc->sc_eds[i]); 922 bad4: 923 ohci_free_sed(sc, sc->sc_isoc_head); 924 bad3: 925 ohci_free_sed(sc, sc->sc_bulk_head); 926 bad2: 927 ohci_free_sed(sc, sc->sc_ctrl_head); 928 bad1: 929 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 930 return (err); 931 } 932 933 usbd_status 934 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 935 { 936 #if defined(__NetBSD__) || defined(__OpenBSD__) 937 struct ohci_softc *sc = (struct ohci_softc *)bus; 938 #endif 939 usbd_status status; 940 941 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 942 #ifdef __NetBSD__ 943 if (status == USBD_NOMEM) 944 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 945 #endif 946 return status; 947 } 948 949 void 950 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 951 { 952 #if defined(__NetBSD__) || defined(__OpenBSD__) 953 struct ohci_softc *sc = (struct ohci_softc *)bus; 954 #endif 955 #ifdef __NetBSD__ 956 if (dma->block->flags & USB_DMA_RESERVE) { 957 usb_reserve_freem(&((struct ohci_softc *)bus)->sc_dma_reserve, 958 dma); 959 return; 960 } 961 #endif 962 usb_freemem(&sc->sc_bus, dma); 963 } 964 965 usbd_xfer_handle 966 ohci_allocx(struct usbd_bus *bus) 967 { 968 struct ohci_softc *sc = (struct ohci_softc *)bus; 969 usbd_xfer_handle xfer; 970 971 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 972 if (xfer != NULL) { 973 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 974 #ifdef DIAGNOSTIC 975 if (xfer->busy_free != XFER_FREE) { 976 printf("ohci_allocx: xfer=%p not free, 0x%08x\n", xfer, 977 xfer->busy_free); 978 } 979 #endif 980 } else { 981 xfer = malloc(sizeof(struct ohci_xfer), M_USB, M_NOWAIT); 982 } 983 if (xfer != NULL) { 984 memset(xfer, 0, sizeof (struct ohci_xfer)); 985 #ifdef DIAGNOSTIC 986 xfer->busy_free = XFER_BUSY; 987 #endif 988 } 989 return (xfer); 990 } 991 992 void 993 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 994 { 995 struct ohci_softc *sc = (struct ohci_softc *)bus; 996 997 #ifdef DIAGNOSTIC 998 if (xfer->busy_free != XFER_BUSY) { 999 printf("ohci_freex: xfer=%p not busy, 0x%08x\n", xfer, 1000 xfer->busy_free); 1001 } 1002 xfer->busy_free = XFER_FREE; 1003 #endif 1004 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 1005 } 1006 1007 /* 1008 * Shut down the controller when the system is going down. 1009 */ 1010 void 1011 ohci_shutdown(void *v) 1012 { 1013 ohci_softc_t *sc = v; 1014 1015 DPRINTF(("ohci_shutdown: stopping the HC\n")); 1016 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1017 } 1018 1019 /* 1020 * Handle suspend/resume. 1021 * 1022 * We need to switch to polling mode here, because this routine is 1023 * called from an interupt context. This is all right since we 1024 * are almost suspended anyway. 1025 */ 1026 void 1027 ohci_power(int why, void *v) 1028 { 1029 ohci_softc_t *sc = v; 1030 u_int32_t ctl; 1031 int s; 1032 1033 #ifdef OHCI_DEBUG 1034 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 1035 ohci_dumpregs(sc); 1036 #endif 1037 1038 s = splhardusb(); 1039 switch (why) { 1040 case PWR_SUSPEND: 1041 case PWR_STANDBY: 1042 sc->sc_bus.use_polling++; 1043 ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK; 1044 if (sc->sc_control == 0) { 1045 /* 1046 * Preserve register values, in case that APM BIOS 1047 * does not recover them. 1048 */ 1049 sc->sc_control = ctl; 1050 sc->sc_intre = OREAD4(sc, OHCI_INTERRUPT_ENABLE); 1051 } 1052 ctl |= OHCI_HCFS_SUSPEND; 1053 OWRITE4(sc, OHCI_CONTROL, ctl); 1054 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 1055 sc->sc_bus.use_polling--; 1056 break; 1057 case PWR_RESUME: 1058 sc->sc_bus.use_polling++; 1059 /* Some broken BIOSes do not recover these values */ 1060 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 1061 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 1062 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 1063 if (sc->sc_intre) 1064 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, 1065 sc->sc_intre & (OHCI_ALL_INTRS | OHCI_MIE)); 1066 if (sc->sc_control) 1067 ctl = sc->sc_control; 1068 else 1069 ctl = OREAD4(sc, OHCI_CONTROL); 1070 ctl |= OHCI_HCFS_RESUME; 1071 OWRITE4(sc, OHCI_CONTROL, ctl); 1072 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 1073 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL; 1074 OWRITE4(sc, OHCI_CONTROL, ctl); 1075 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 1076 sc->sc_control = sc->sc_intre = 0; 1077 sc->sc_bus.use_polling--; 1078 break; 1079 case PWR_SOFTSUSPEND: 1080 case PWR_SOFTSTANDBY: 1081 case PWR_SOFTRESUME: 1082 break; 1083 } 1084 splx(s); 1085 } 1086 1087 #ifdef OHCI_DEBUG 1088 void 1089 ohci_dumpregs(ohci_softc_t *sc) 1090 { 1091 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 1092 OREAD4(sc, OHCI_REVISION), 1093 OREAD4(sc, OHCI_CONTROL), 1094 OREAD4(sc, OHCI_COMMAND_STATUS))); 1095 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 1096 OREAD4(sc, OHCI_INTERRUPT_STATUS), 1097 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 1098 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 1099 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 1100 OREAD4(sc, OHCI_HCCA), 1101 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 1102 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 1103 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 1104 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 1105 OREAD4(sc, OHCI_BULK_HEAD_ED), 1106 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1107 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1108 OREAD4(sc, OHCI_DONE_HEAD), 1109 OREAD4(sc, OHCI_FM_INTERVAL), 1110 OREAD4(sc, OHCI_FM_REMAINING))); 1111 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1112 OREAD4(sc, OHCI_FM_NUMBER), 1113 OREAD4(sc, OHCI_PERIODIC_START), 1114 OREAD4(sc, OHCI_LS_THRESHOLD))); 1115 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1116 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1117 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1118 OREAD4(sc, OHCI_RH_STATUS))); 1119 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1120 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1121 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1122 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1123 O32TOH(sc->sc_hcca->hcca_frame_number), 1124 O32TOH(sc->sc_hcca->hcca_done_head))); 1125 } 1126 #endif 1127 1128 Static int ohci_intr1(ohci_softc_t *); 1129 1130 int 1131 ohci_intr(void *p) 1132 { 1133 ohci_softc_t *sc = p; 1134 1135 if (sc == NULL || sc->sc_dying) 1136 return (0); 1137 1138 /* If we get an interrupt while polling, then just ignore it. */ 1139 if (sc->sc_bus.use_polling) { 1140 #ifdef DIAGNOSTIC 1141 DPRINTFN(16, ("ohci_intr: ignored interrupt while polling\n")); 1142 #endif 1143 /* for level triggered intrs, should do something to ack */ 1144 OWRITE4(sc, OHCI_INTERRUPT_STATUS, 1145 OREAD4(sc, OHCI_INTERRUPT_STATUS)); 1146 1147 return (0); 1148 } 1149 1150 return (ohci_intr1(sc)); 1151 } 1152 1153 Static int 1154 ohci_intr1(ohci_softc_t *sc) 1155 { 1156 u_int32_t intrs, eintrs; 1157 1158 DPRINTFN(14,("ohci_intr1: enter\n")); 1159 1160 /* In case the interrupt occurs before initialization has completed. */ 1161 if (sc == NULL || sc->sc_hcca == NULL) { 1162 #ifdef DIAGNOSTIC 1163 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1164 #endif 1165 return (0); 1166 } 1167 1168 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1169 if (!intrs) 1170 return (0); 1171 1172 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs & ~(OHCI_MIE|OHCI_WDH)); /* Acknowledge */ 1173 eintrs = intrs & sc->sc_eintrs; 1174 if (!eintrs) 1175 return (0); 1176 1177 sc->sc_bus.intr_context++; 1178 sc->sc_bus.no_intrs++; 1179 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1180 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1181 (u_int)eintrs)); 1182 1183 if (eintrs & OHCI_SO) { 1184 sc->sc_overrun_cnt++; 1185 if (usbd_ratecheck(&sc->sc_overrun_ntc)) { 1186 printf("%s: %u scheduling overruns\n", 1187 USBDEVNAME(sc->sc_bus.bdev), sc->sc_overrun_cnt); 1188 sc->sc_overrun_cnt = 0; 1189 } 1190 /* XXX do what */ 1191 eintrs &= ~OHCI_SO; 1192 } 1193 if (eintrs & OHCI_WDH) { 1194 /* 1195 * We block the interrupt below, and reenable it later from 1196 * ohci_softintr(). 1197 */ 1198 usb_schedsoftintr(&sc->sc_bus); 1199 } 1200 if (eintrs & OHCI_RD) { 1201 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1202 /* XXX process resume detect */ 1203 } 1204 if (eintrs & OHCI_UE) { 1205 printf("%s: unrecoverable error, controller halted\n", 1206 USBDEVNAME(sc->sc_bus.bdev)); 1207 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1208 /* XXX what else */ 1209 } 1210 if (eintrs & OHCI_RHSC) { 1211 /* 1212 * We block the interrupt below, and reenable it later from 1213 * a timeout. 1214 */ 1215 ohci_rhsc(sc, sc->sc_intrxfer); 1216 /* Do not allow RHSC interrupts > 1 per second */ 1217 usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc); 1218 } 1219 1220 sc->sc_bus.intr_context--; 1221 1222 if (eintrs != 0) { 1223 /* Block unprocessed interrupts. */ 1224 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, eintrs); 1225 sc->sc_eintrs &= ~eintrs; 1226 DPRINTFN(1, ("%s: blocking intrs 0x%x\n", 1227 USBDEVNAME(sc->sc_bus.bdev), eintrs)); 1228 } 1229 1230 return (1); 1231 } 1232 1233 void 1234 ohci_rhsc_enable(void *v_sc) 1235 { 1236 ohci_softc_t *sc = v_sc; 1237 int s; 1238 1239 s = splhardusb(); 1240 sc->sc_eintrs |= OHCI_RHSC; 1241 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1242 splx(s); 1243 } 1244 1245 #ifdef OHCI_DEBUG 1246 const char *ohci_cc_strs[] = { 1247 "NO_ERROR", 1248 "CRC", 1249 "BIT_STUFFING", 1250 "DATA_TOGGLE_MISMATCH", 1251 "STALL", 1252 "DEVICE_NOT_RESPONDING", 1253 "PID_CHECK_FAILURE", 1254 "UNEXPECTED_PID", 1255 "DATA_OVERRUN", 1256 "DATA_UNDERRUN", 1257 "BUFFER_OVERRUN", 1258 "BUFFER_UNDERRUN", 1259 "reserved", 1260 "reserved", 1261 "NOT_ACCESSED", 1262 "NOT_ACCESSED", 1263 }; 1264 #endif 1265 1266 void 1267 ohci_softintr(void *v) 1268 { 1269 ohci_softc_t *sc = v; 1270 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1271 ohci_soft_td_t *std, *sdone, *stdnext; 1272 usbd_xfer_handle xfer; 1273 struct ohci_pipe *opipe; 1274 int len, cc, s; 1275 int i, j, actlen, iframes, uedir; 1276 ohci_physaddr_t done; 1277 1278 DPRINTFN(10,("ohci_softintr: enter\n")); 1279 1280 sc->sc_bus.intr_context++; 1281 1282 s = splhardusb(); 1283 done = O32TOH(sc->sc_hcca->hcca_done_head) & ~OHCI_DONE_INTRS; 1284 sc->sc_hcca->hcca_done_head = 0; 1285 OWRITE4(sc, OHCI_INTERRUPT_STATUS, OHCI_WDH); 1286 sc->sc_eintrs |= OHCI_WDH; 1287 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_WDH); 1288 splx(s); 1289 1290 /* Reverse the done list. */ 1291 for (sdone = NULL, sidone = NULL; done != 0; ) { 1292 std = ohci_hash_find_td(sc, done); 1293 if (std != NULL) { 1294 std->dnext = sdone; 1295 done = O32TOH(std->td.td_nexttd); 1296 sdone = std; 1297 DPRINTFN(10,("add TD %p\n", std)); 1298 continue; 1299 } 1300 sitd = ohci_hash_find_itd(sc, done); 1301 if (sitd != NULL) { 1302 sitd->dnext = sidone; 1303 done = O32TOH(sitd->itd.itd_nextitd); 1304 sidone = sitd; 1305 DPRINTFN(5,("add ITD %p\n", sitd)); 1306 continue; 1307 } 1308 panic("ohci_softintr: addr 0x%08lx not found", (u_long)done); 1309 } 1310 1311 DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone)); 1312 1313 #ifdef OHCI_DEBUG 1314 if (ohcidebug > 10) { 1315 DPRINTF(("ohci_process_done: TD done:\n")); 1316 ohci_dump_tds(sc, sdone); 1317 } 1318 #endif 1319 1320 for (std = sdone; std; std = stdnext) { 1321 xfer = std->xfer; 1322 stdnext = std->dnext; 1323 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1324 std, xfer, xfer ? xfer->hcpriv : 0)); 1325 if (xfer == NULL) { 1326 /* 1327 * xfer == NULL: There seems to be no xfer associated 1328 * with this TD. It is tailp that happened to end up on 1329 * the done queue. 1330 * Shouldn't happen, but some chips are broken(?). 1331 */ 1332 continue; 1333 } 1334 if (xfer->status == USBD_CANCELLED || 1335 xfer->status == USBD_TIMEOUT) { 1336 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1337 xfer)); 1338 /* Handled by abort routine. */ 1339 continue; 1340 } 1341 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1342 1343 len = std->len; 1344 if (std->td.td_cbp != 0) 1345 len -= O32TOH(std->td.td_be) - 1346 O32TOH(std->td.td_cbp) + 1; 1347 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", len, 1348 std->flags)); 1349 if (std->flags & OHCI_ADD_LEN) 1350 xfer->actlen += len; 1351 1352 cc = OHCI_TD_GET_CC(O32TOH(std->td.td_flags)); 1353 if (cc == OHCI_CC_NO_ERROR) { 1354 if (std->flags & OHCI_CALL_DONE) { 1355 xfer->status = USBD_NORMAL_COMPLETION; 1356 s = splusb(); 1357 usb_transfer_complete(xfer); 1358 splx(s); 1359 } 1360 ohci_free_std(sc, std); 1361 } else { 1362 /* 1363 * Endpoint is halted. First unlink all the TDs 1364 * belonging to the failed transfer, and then restart 1365 * the endpoint. 1366 */ 1367 ohci_soft_td_t *p, *n; 1368 opipe = (struct ohci_pipe *)xfer->pipe; 1369 1370 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1371 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1372 ohci_cc_strs[OHCI_TD_GET_CC(O32TOH(std->td.td_flags))])); 1373 1374 /* remove TDs */ 1375 for (p = std; p->xfer == xfer; p = n) { 1376 n = p->nexttd; 1377 ohci_free_std(sc, p); 1378 } 1379 1380 /* clear halt */ 1381 opipe->sed->ed.ed_headp = HTOO32(p->physaddr); 1382 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1383 1384 if (cc == OHCI_CC_STALL) 1385 xfer->status = USBD_STALLED; 1386 else 1387 xfer->status = USBD_IOERROR; 1388 s = splusb(); 1389 usb_transfer_complete(xfer); 1390 splx(s); 1391 } 1392 } 1393 1394 #ifdef OHCI_DEBUG 1395 if (ohcidebug > 10) { 1396 DPRINTF(("ohci_softintr: ITD done:\n")); 1397 ohci_dump_itds(sc, sidone); 1398 } 1399 #endif 1400 1401 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1402 xfer = sitd->xfer; 1403 sitdnext = sitd->dnext; 1404 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1405 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1406 if (xfer == NULL) 1407 continue; 1408 if (xfer->status == USBD_CANCELLED || 1409 xfer->status == USBD_TIMEOUT) { 1410 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1411 xfer)); 1412 /* Handled by abort routine. */ 1413 continue; 1414 } 1415 #ifdef DIAGNOSTIC 1416 if (sitd->isdone) 1417 printf("ohci_softintr: sitd=%p is done\n", sitd); 1418 sitd->isdone = 1; 1419 #endif 1420 if (sitd->flags & OHCI_CALL_DONE) { 1421 ohci_soft_itd_t *next; 1422 1423 opipe = (struct ohci_pipe *)xfer->pipe; 1424 opipe->u.iso.inuse -= xfer->nframes; 1425 uedir = UE_GET_DIR(xfer->pipe->endpoint->edesc-> 1426 bEndpointAddress); 1427 xfer->status = USBD_NORMAL_COMPLETION; 1428 actlen = 0; 1429 for (i = 0, sitd = xfer->hcpriv;; 1430 sitd = next) { 1431 next = sitd->nextitd; 1432 if (OHCI_ITD_GET_CC(O32TOH(sitd-> 1433 itd.itd_flags)) != OHCI_CC_NO_ERROR) 1434 xfer->status = USBD_IOERROR; 1435 /* For input, update frlengths with actual */ 1436 /* XXX anything necessary for output? */ 1437 if (uedir == UE_DIR_IN && 1438 xfer->status == USBD_NORMAL_COMPLETION) { 1439 iframes = OHCI_ITD_GET_FC(O32TOH( 1440 sitd->itd.itd_flags)); 1441 for (j = 0; j < iframes; i++, j++) { 1442 len = O16TOH(sitd-> 1443 itd.itd_offset[j]); 1444 if ((OHCI_ITD_PSW_GET_CC(len) & 1445 OHCI_CC_NOT_ACCESSED_MASK) 1446 == OHCI_CC_NOT_ACCESSED) 1447 len = 0; 1448 else 1449 len = OHCI_ITD_PSW_LENGTH(len); 1450 xfer->frlengths[i] = len; 1451 actlen += len; 1452 } 1453 } 1454 if (sitd->flags & OHCI_CALL_DONE) 1455 break; 1456 ohci_free_sitd(sc, sitd); 1457 } 1458 ohci_free_sitd(sc, sitd); 1459 if (uedir == UE_DIR_IN && 1460 xfer->status == USBD_NORMAL_COMPLETION) 1461 xfer->actlen = actlen; 1462 xfer->hcpriv = NULL; 1463 1464 s = splusb(); 1465 usb_transfer_complete(xfer); 1466 splx(s); 1467 } 1468 } 1469 1470 #ifdef USB_USE_SOFTINTR 1471 if (sc->sc_softwake) { 1472 sc->sc_softwake = 0; 1473 wakeup(&sc->sc_softwake); 1474 } 1475 #endif /* USB_USE_SOFTINTR */ 1476 1477 sc->sc_bus.intr_context--; 1478 DPRINTFN(10,("ohci_softintr: done:\n")); 1479 } 1480 1481 void 1482 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1483 { 1484 DPRINTFN(10,("ohci_device_ctrl_done: xfer=%p\n", xfer)); 1485 1486 #ifdef DIAGNOSTIC 1487 if (!(xfer->rqflags & URQ_REQUEST)) { 1488 panic("ohci_device_ctrl_done: not a request"); 1489 } 1490 #endif 1491 } 1492 1493 void 1494 ohci_device_intr_done(usbd_xfer_handle xfer) 1495 { 1496 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1497 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1498 ohci_soft_ed_t *sed = opipe->sed; 1499 ohci_soft_td_t *data, *tail; 1500 1501 1502 DPRINTFN(10,("ohci_device_intr_done: xfer=%p, actlen=%d\n", 1503 xfer, xfer->actlen)); 1504 1505 if (xfer->pipe->repeat) { 1506 data = opipe->tail.td; 1507 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1508 if (tail == NULL) { 1509 xfer->status = USBD_NOMEM; 1510 return; 1511 } 1512 tail->xfer = NULL; 1513 1514 data->td.td_flags = HTOO32( 1515 OHCI_TD_IN | OHCI_TD_NOCC | 1516 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1517 if (xfer->flags & USBD_SHORT_XFER_OK) 1518 data->td.td_flags |= HTOO32(OHCI_TD_R); 1519 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 1520 data->nexttd = tail; 1521 data->td.td_nexttd = HTOO32(tail->physaddr); 1522 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + 1523 xfer->length - 1); 1524 data->len = xfer->length; 1525 data->xfer = xfer; 1526 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1527 xfer->hcpriv = data; 1528 xfer->actlen = 0; 1529 1530 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1531 opipe->tail.td = tail; 1532 } 1533 } 1534 1535 void 1536 ohci_device_bulk_done(usbd_xfer_handle xfer) 1537 { 1538 DPRINTFN(10,("ohci_device_bulk_done: xfer=%p, actlen=%d\n", 1539 xfer, xfer->actlen)); 1540 } 1541 1542 void 1543 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1544 { 1545 usbd_pipe_handle pipe; 1546 u_char *p; 1547 int i, m; 1548 int hstatus; 1549 1550 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1551 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1552 sc, xfer, hstatus)); 1553 1554 if (xfer == NULL) { 1555 /* Just ignore the change. */ 1556 return; 1557 } 1558 1559 pipe = xfer->pipe; 1560 1561 p = KERNADDR(&xfer->dmabuf, 0); 1562 m = min(sc->sc_noport, xfer->length * 8 - 1); 1563 memset(p, 0, xfer->length); 1564 for (i = 1; i <= m; i++) { 1565 /* Pick out CHANGE bits from the status reg. */ 1566 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1567 p[i/8] |= 1 << (i%8); 1568 } 1569 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1570 xfer->actlen = xfer->length; 1571 xfer->status = USBD_NORMAL_COMPLETION; 1572 1573 usb_transfer_complete(xfer); 1574 } 1575 1576 void 1577 ohci_root_intr_done(usbd_xfer_handle xfer) 1578 { 1579 } 1580 1581 void 1582 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1583 { 1584 } 1585 1586 /* 1587 * Wait here until controller claims to have an interrupt. 1588 * Then call ohci_intr and return. Use timeout to avoid waiting 1589 * too long. 1590 */ 1591 void 1592 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1593 { 1594 int timo; 1595 u_int32_t intrs; 1596 1597 xfer->status = USBD_IN_PROGRESS; 1598 for (timo = xfer->timeout; timo >= 0; timo--) { 1599 usb_delay_ms(&sc->sc_bus, 1); 1600 if (sc->sc_dying) 1601 break; 1602 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1603 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1604 #ifdef OHCI_DEBUG 1605 if (ohcidebug > 15) 1606 ohci_dumpregs(sc); 1607 #endif 1608 if (intrs) { 1609 ohci_intr1(sc); 1610 if (xfer->status != USBD_IN_PROGRESS) 1611 return; 1612 } 1613 } 1614 1615 /* Timeout */ 1616 DPRINTF(("ohci_waitintr: timeout\n")); 1617 xfer->status = USBD_TIMEOUT; 1618 usb_transfer_complete(xfer); 1619 /* XXX should free TD */ 1620 } 1621 1622 void 1623 ohci_poll(struct usbd_bus *bus) 1624 { 1625 ohci_softc_t *sc = (ohci_softc_t *)bus; 1626 #ifdef OHCI_DEBUG 1627 static int last; 1628 int new; 1629 new = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1630 if (new != last) { 1631 DPRINTFN(10,("ohci_poll: intrs=0x%04x\n", new)); 1632 last = new; 1633 } 1634 #endif 1635 1636 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1637 ohci_intr1(sc); 1638 } 1639 1640 usbd_status 1641 ohci_device_request(usbd_xfer_handle xfer) 1642 { 1643 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1644 usb_device_request_t *req = &xfer->request; 1645 usbd_device_handle dev = opipe->pipe.device; 1646 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1647 int addr = dev->address; 1648 ohci_soft_td_t *setup, *stat, *next, *tail; 1649 ohci_soft_ed_t *sed; 1650 int isread; 1651 int len; 1652 usbd_status err; 1653 int s; 1654 1655 isread = req->bmRequestType & UT_READ; 1656 len = UGETW(req->wLength); 1657 1658 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1659 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1660 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1661 UGETW(req->wIndex), len, addr, 1662 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1663 1664 setup = opipe->tail.td; 1665 stat = ohci_alloc_std(sc); 1666 if (stat == NULL) { 1667 err = USBD_NOMEM; 1668 goto bad1; 1669 } 1670 tail = ohci_alloc_std(sc); 1671 if (tail == NULL) { 1672 err = USBD_NOMEM; 1673 goto bad2; 1674 } 1675 tail->xfer = NULL; 1676 1677 sed = opipe->sed; 1678 opipe->u.ctl.length = len; 1679 1680 /* Update device address and length since they may have changed 1681 during the setup of the control pipe in usbd_new_device(). */ 1682 /* XXX This only needs to be done once, but it's too early in open. */ 1683 /* XXXX Should not touch ED here! */ 1684 sed->ed.ed_flags = HTOO32( 1685 (O32TOH(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1686 OHCI_ED_SET_FA(addr) | 1687 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1688 1689 next = stat; 1690 1691 /* Set up data transaction */ 1692 if (len != 0) { 1693 ohci_soft_td_t *std = stat; 1694 1695 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1696 std, &stat); 1697 stat = stat->nexttd; /* point at free TD */ 1698 if (err) 1699 goto bad3; 1700 /* Start toggle at 1 and then use the carried toggle. */ 1701 std->td.td_flags &= HTOO32(~OHCI_TD_TOGGLE_MASK); 1702 std->td.td_flags |= HTOO32(OHCI_TD_TOGGLE_1); 1703 } 1704 1705 memcpy(KERNADDR(&opipe->u.ctl.reqdma, 0), req, sizeof *req); 1706 1707 setup->td.td_flags = HTOO32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1708 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1709 setup->td.td_cbp = HTOO32(DMAADDR(&opipe->u.ctl.reqdma, 0)); 1710 setup->nexttd = next; 1711 setup->td.td_nexttd = HTOO32(next->physaddr); 1712 setup->td.td_be = HTOO32(O32TOH(setup->td.td_cbp) + sizeof *req - 1); 1713 setup->len = 0; 1714 setup->xfer = xfer; 1715 setup->flags = 0; 1716 xfer->hcpriv = setup; 1717 1718 stat->td.td_flags = HTOO32( 1719 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1720 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1721 stat->td.td_cbp = 0; 1722 stat->nexttd = tail; 1723 stat->td.td_nexttd = HTOO32(tail->physaddr); 1724 stat->td.td_be = 0; 1725 stat->flags = OHCI_CALL_DONE; 1726 stat->len = 0; 1727 stat->xfer = xfer; 1728 1729 #ifdef OHCI_DEBUG 1730 if (ohcidebug > 5) { 1731 DPRINTF(("ohci_device_request:\n")); 1732 ohci_dump_ed(sc, sed); 1733 ohci_dump_tds(sc, setup); 1734 } 1735 #endif 1736 1737 /* Insert ED in schedule */ 1738 s = splusb(); 1739 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1740 opipe->tail.td = tail; 1741 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1742 if (xfer->timeout && !sc->sc_bus.use_polling) { 1743 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1744 ohci_timeout, xfer); 1745 } 1746 splx(s); 1747 1748 #ifdef OHCI_DEBUG 1749 if (ohcidebug > 20) { 1750 delay(10000); 1751 DPRINTF(("ohci_device_request: status=%x\n", 1752 OREAD4(sc, OHCI_COMMAND_STATUS))); 1753 ohci_dumpregs(sc); 1754 printf("ctrl head:\n"); 1755 ohci_dump_ed(sc, sc->sc_ctrl_head); 1756 printf("sed:\n"); 1757 ohci_dump_ed(sc, sed); 1758 ohci_dump_tds(sc, setup); 1759 } 1760 #endif 1761 1762 return (USBD_NORMAL_COMPLETION); 1763 1764 bad3: 1765 ohci_free_std(sc, tail); 1766 bad2: 1767 ohci_free_std(sc, stat); 1768 bad1: 1769 return (err); 1770 } 1771 1772 /* 1773 * Add an ED to the schedule. Called at splusb(). 1774 */ 1775 void 1776 ohci_add_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1777 { 1778 DPRINTFN(8,("ohci_add_ed: sed=%p head=%p\n", sed, head)); 1779 1780 SPLUSBCHECK; 1781 sed->next = head->next; 1782 sed->ed.ed_nexted = head->ed.ed_nexted; 1783 head->next = sed; 1784 head->ed.ed_nexted = HTOO32(sed->physaddr); 1785 } 1786 1787 /* 1788 * Remove an ED from the schedule. Called at splusb(). 1789 */ 1790 void 1791 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1792 { 1793 ohci_soft_ed_t *p; 1794 1795 SPLUSBCHECK; 1796 1797 /* XXX */ 1798 for (p = head; p != NULL && p->next != sed; p = p->next) 1799 ; 1800 if (p == NULL) 1801 panic("ohci_rem_ed: ED not found"); 1802 p->next = sed->next; 1803 p->ed.ed_nexted = sed->ed.ed_nexted; 1804 } 1805 1806 /* 1807 * When a transfer is completed the TD is added to the done queue by 1808 * the host controller. This queue is the processed by software. 1809 * Unfortunately the queue contains the physical address of the TD 1810 * and we have no simple way to translate this back to a kernel address. 1811 * To make the translation possible (and fast) we use a hash table of 1812 * TDs currently in the schedule. The physical address is used as the 1813 * hash value. 1814 */ 1815 1816 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1817 /* Called at splusb() */ 1818 void 1819 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1820 { 1821 int h = HASH(std->physaddr); 1822 1823 SPLUSBCHECK; 1824 1825 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1826 } 1827 1828 /* Called at splusb() */ 1829 void 1830 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1831 { 1832 SPLUSBCHECK; 1833 1834 LIST_REMOVE(std, hnext); 1835 } 1836 1837 ohci_soft_td_t * 1838 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1839 { 1840 int h = HASH(a); 1841 ohci_soft_td_t *std; 1842 1843 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1844 std != NULL; 1845 std = LIST_NEXT(std, hnext)) 1846 if (std->physaddr == a) 1847 return (std); 1848 return (NULL); 1849 } 1850 1851 /* Called at splusb() */ 1852 void 1853 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1854 { 1855 int h = HASH(sitd->physaddr); 1856 1857 SPLUSBCHECK; 1858 1859 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1860 sitd, (u_long)sitd->physaddr)); 1861 1862 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1863 } 1864 1865 /* Called at splusb() */ 1866 void 1867 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1868 { 1869 SPLUSBCHECK; 1870 1871 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1872 sitd, (u_long)sitd->physaddr)); 1873 1874 LIST_REMOVE(sitd, hnext); 1875 } 1876 1877 ohci_soft_itd_t * 1878 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1879 { 1880 int h = HASH(a); 1881 ohci_soft_itd_t *sitd; 1882 1883 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1884 sitd != NULL; 1885 sitd = LIST_NEXT(sitd, hnext)) 1886 if (sitd->physaddr == a) 1887 return (sitd); 1888 return (NULL); 1889 } 1890 1891 void 1892 ohci_timeout(void *addr) 1893 { 1894 struct ohci_xfer *oxfer = addr; 1895 struct ohci_pipe *opipe = (struct ohci_pipe *)oxfer->xfer.pipe; 1896 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1897 1898 DPRINTF(("ohci_timeout: oxfer=%p\n", oxfer)); 1899 1900 if (sc->sc_dying) { 1901 ohci_abort_xfer(&oxfer->xfer, USBD_TIMEOUT); 1902 return; 1903 } 1904 1905 /* Execute the abort in a process context. */ 1906 usb_init_task(&oxfer->abort_task, ohci_timeout_task, addr); 1907 usb_add_task(oxfer->xfer.pipe->device, &oxfer->abort_task, 1908 USB_TASKQ_HC); 1909 } 1910 1911 void 1912 ohci_timeout_task(void *addr) 1913 { 1914 usbd_xfer_handle xfer = addr; 1915 int s; 1916 1917 DPRINTF(("ohci_timeout_task: xfer=%p\n", xfer)); 1918 1919 s = splusb(); 1920 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1921 splx(s); 1922 } 1923 1924 #ifdef OHCI_DEBUG 1925 void 1926 ohci_dump_tds(ohci_softc_t *sc, ohci_soft_td_t *std) 1927 { 1928 for (; std; std = std->nexttd) 1929 ohci_dump_td(sc, std); 1930 } 1931 1932 void 1933 ohci_dump_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1934 { 1935 char sbuf[128]; 1936 1937 bitmask_snprintf((u_int32_t)O32TOH(std->td.td_flags), 1938 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1939 sbuf, sizeof(sbuf)); 1940 1941 printf("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1942 "nexttd=0x%08lx be=0x%08lx\n", 1943 std, (u_long)std->physaddr, sbuf, 1944 OHCI_TD_GET_DI(O32TOH(std->td.td_flags)), 1945 OHCI_TD_GET_EC(O32TOH(std->td.td_flags)), 1946 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1947 (u_long)O32TOH(std->td.td_cbp), 1948 (u_long)O32TOH(std->td.td_nexttd), 1949 (u_long)O32TOH(std->td.td_be)); 1950 } 1951 1952 void 1953 ohci_dump_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1954 { 1955 int i; 1956 1957 printf("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1958 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1959 sitd, (u_long)sitd->physaddr, 1960 OHCI_ITD_GET_SF(O32TOH(sitd->itd.itd_flags)), 1961 OHCI_ITD_GET_DI(O32TOH(sitd->itd.itd_flags)), 1962 OHCI_ITD_GET_FC(O32TOH(sitd->itd.itd_flags)), 1963 OHCI_ITD_GET_CC(O32TOH(sitd->itd.itd_flags)), 1964 (u_long)O32TOH(sitd->itd.itd_bp0), 1965 (u_long)O32TOH(sitd->itd.itd_nextitd), 1966 (u_long)O32TOH(sitd->itd.itd_be)); 1967 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1968 printf("offs[%d]=0x%04x ", i, 1969 (u_int)O16TOH(sitd->itd.itd_offset[i])); 1970 printf("\n"); 1971 } 1972 1973 void 1974 ohci_dump_itds(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1975 { 1976 for (; sitd; sitd = sitd->nextitd) 1977 ohci_dump_itd(sc, sitd); 1978 } 1979 1980 void 1981 ohci_dump_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 1982 { 1983 char sbuf[128], sbuf2[128]; 1984 1985 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_flags), 1986 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1987 sbuf, sizeof(sbuf)); 1988 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_headp), 1989 "\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2)); 1990 1991 printf("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d flags=%s\ntailp=0x%08lx " 1992 "headflags=%s headp=0x%08lx nexted=0x%08lx\n", 1993 sed, (u_long)sed->physaddr, 1994 OHCI_ED_GET_FA(O32TOH(sed->ed.ed_flags)), 1995 OHCI_ED_GET_EN(O32TOH(sed->ed.ed_flags)), 1996 OHCI_ED_GET_MAXP(O32TOH(sed->ed.ed_flags)), sbuf, 1997 (u_long)O32TOH(sed->ed.ed_tailp), sbuf2, 1998 (u_long)O32TOH(sed->ed.ed_headp), 1999 (u_long)O32TOH(sed->ed.ed_nexted)); 2000 } 2001 #endif 2002 2003 usbd_status 2004 ohci_open(usbd_pipe_handle pipe) 2005 { 2006 usbd_device_handle dev = pipe->device; 2007 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2008 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2009 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2010 u_int8_t addr = dev->address; 2011 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 2012 ohci_soft_ed_t *sed; 2013 ohci_soft_td_t *std; 2014 ohci_soft_itd_t *sitd; 2015 ohci_physaddr_t tdphys; 2016 u_int32_t fmt; 2017 usbd_status err; 2018 int s; 2019 int ival; 2020 2021 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2022 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 2023 2024 if (sc->sc_dying) 2025 return (USBD_IOERROR); 2026 2027 std = NULL; 2028 sed = NULL; 2029 2030 if (addr == sc->sc_addr) { 2031 switch (ed->bEndpointAddress) { 2032 case USB_CONTROL_ENDPOINT: 2033 pipe->methods = &ohci_root_ctrl_methods; 2034 break; 2035 case UE_DIR_IN | OHCI_INTR_ENDPT: 2036 pipe->methods = &ohci_root_intr_methods; 2037 break; 2038 default: 2039 return (USBD_INVAL); 2040 } 2041 } else { 2042 sed = ohci_alloc_sed(sc); 2043 if (sed == NULL) 2044 goto bad0; 2045 opipe->sed = sed; 2046 if (xfertype == UE_ISOCHRONOUS) { 2047 sitd = ohci_alloc_sitd(sc); 2048 if (sitd == NULL) 2049 goto bad1; 2050 opipe->tail.itd = sitd; 2051 tdphys = sitd->physaddr; 2052 fmt = OHCI_ED_FORMAT_ISO; 2053 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 2054 fmt |= OHCI_ED_DIR_IN; 2055 else 2056 fmt |= OHCI_ED_DIR_OUT; 2057 } else { 2058 std = ohci_alloc_std(sc); 2059 if (std == NULL) 2060 goto bad1; 2061 opipe->tail.td = std; 2062 tdphys = std->physaddr; 2063 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 2064 } 2065 sed->ed.ed_flags = HTOO32( 2066 OHCI_ED_SET_FA(addr) | 2067 OHCI_ED_SET_EN(UE_GET_ADDR(ed->bEndpointAddress)) | 2068 (dev->speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) | 2069 fmt | 2070 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 2071 sed->ed.ed_headp = sed->ed.ed_tailp = HTOO32(tdphys); 2072 2073 switch (xfertype) { 2074 case UE_CONTROL: 2075 pipe->methods = &ohci_device_ctrl_methods; 2076 err = usb_allocmem(&sc->sc_bus, 2077 sizeof(usb_device_request_t), 2078 0, &opipe->u.ctl.reqdma); 2079 if (err) 2080 goto bad; 2081 s = splusb(); 2082 ohci_add_ed(sc, sed, sc->sc_ctrl_head); 2083 splx(s); 2084 break; 2085 case UE_INTERRUPT: 2086 pipe->methods = &ohci_device_intr_methods; 2087 ival = pipe->interval; 2088 if (ival == USBD_DEFAULT_INTERVAL) 2089 ival = ed->bInterval; 2090 return (ohci_device_setintr(sc, opipe, ival)); 2091 case UE_ISOCHRONOUS: 2092 pipe->methods = &ohci_device_isoc_methods; 2093 return (ohci_setup_isoc(pipe)); 2094 case UE_BULK: 2095 pipe->methods = &ohci_device_bulk_methods; 2096 s = splusb(); 2097 ohci_add_ed(sc, sed, sc->sc_bulk_head); 2098 splx(s); 2099 break; 2100 } 2101 } 2102 return (USBD_NORMAL_COMPLETION); 2103 2104 bad: 2105 if (std != NULL) 2106 ohci_free_std(sc, std); 2107 bad1: 2108 if (sed != NULL) 2109 ohci_free_sed(sc, sed); 2110 bad0: 2111 return (USBD_NOMEM); 2112 2113 } 2114 2115 /* 2116 * Close a reqular pipe. 2117 * Assumes that there are no pending transactions. 2118 */ 2119 void 2120 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 2121 { 2122 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2123 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2124 ohci_soft_ed_t *sed = opipe->sed; 2125 int s; 2126 2127 s = splusb(); 2128 #ifdef DIAGNOSTIC 2129 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 2130 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2131 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) { 2132 ohci_soft_td_t *std; 2133 std = ohci_hash_find_td(sc, O32TOH(sed->ed.ed_headp)); 2134 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 2135 "tl=0x%x pipe=%p, std=%p\n", sed, 2136 (int)O32TOH(sed->ed.ed_headp), 2137 (int)O32TOH(sed->ed.ed_tailp), 2138 pipe, std); 2139 #ifdef USB_DEBUG 2140 usbd_dump_pipe(&opipe->pipe); 2141 #endif 2142 #ifdef OHCI_DEBUG 2143 ohci_dump_ed(sc, sed); 2144 if (std) 2145 ohci_dump_td(sc, std); 2146 #endif 2147 usb_delay_ms(&sc->sc_bus, 2); 2148 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2149 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 2150 printf("ohci_close_pipe: pipe still not empty\n"); 2151 } 2152 #endif 2153 ohci_rem_ed(sed, head); 2154 /* Make sure the host controller is not touching this ED */ 2155 usb_delay_ms(&sc->sc_bus, 1); 2156 splx(s); 2157 ohci_free_sed(sc, opipe->sed); 2158 } 2159 2160 /* 2161 * Abort a device request. 2162 * If this routine is called at splusb() it guarantees that the request 2163 * will be removed from the hardware scheduling and that the callback 2164 * for it will be called with USBD_CANCELLED status. 2165 * It's impossible to guarantee that the requested transfer will not 2166 * have happened since the hardware runs concurrently. 2167 * If the transaction has already happened we rely on the ordinary 2168 * interrupt processing to process it. 2169 */ 2170 void 2171 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2172 { 2173 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2174 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2175 ohci_soft_ed_t *sed = opipe->sed; 2176 ohci_soft_td_t *p, *n; 2177 ohci_physaddr_t headp; 2178 int s, hit; 2179 int wake; 2180 2181 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p sed=%p\n", xfer, opipe,sed)); 2182 2183 if (sc->sc_dying) { 2184 /* If we're dying, just do the software part. */ 2185 s = splusb(); 2186 xfer->status = status; /* make software ignore it */ 2187 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2188 usb_transfer_complete(xfer); 2189 splx(s); 2190 return; 2191 } 2192 2193 if (xfer->device->bus->intr_context || !curproc) 2194 panic("ohci_abort_xfer: not in process context"); 2195 2196 /* 2197 * If an abort is already in progress then just wait for it to 2198 * complete and return. 2199 */ 2200 if (xfer->hcflags & UXFER_ABORTING) { 2201 DPRINTFN(2, ("ohci_abort_xfer: already aborting\n")); 2202 #ifdef DIAGNOSTIC 2203 if (status == USBD_TIMEOUT) 2204 printf("0hci_abort_xfer: TIMEOUT while aborting\n"); 2205 #endif 2206 /* Override the status which might be USBD_TIMEOUT. */ 2207 xfer->status = status; 2208 DPRINTFN(2, ("ohci_abort_xfer: waiting for abort to finish\n")); 2209 xfer->hcflags |= UXFER_ABORTWAIT; 2210 while (xfer->hcflags & UXFER_ABORTING) 2211 tsleep(&xfer->hcflags, PZERO, "ohciaw", 0); 2212 return; 2213 } 2214 xfer->hcflags |= UXFER_ABORTING; 2215 2216 /* 2217 * Step 1: Make interrupt routine and hardware ignore xfer. 2218 */ 2219 s = splusb(); 2220 xfer->status = status; /* make software ignore it */ 2221 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2222 splx(s); 2223 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2224 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 2225 2226 /* 2227 * Step 2: Wait until we know hardware has finished any possible 2228 * use of the xfer. Also make sure the soft interrupt routine 2229 * has run. 2230 */ 2231 usb_delay_ms(opipe->pipe.device->bus, 20); /* Hardware finishes in 1ms */ 2232 s = splusb(); 2233 #ifdef USB_USE_SOFTINTR 2234 sc->sc_softwake = 1; 2235 #endif /* USB_USE_SOFTINTR */ 2236 usb_schedsoftintr(&sc->sc_bus); 2237 #ifdef USB_USE_SOFTINTR 2238 tsleep(&sc->sc_softwake, PZERO, "ohciab", 0); 2239 #endif /* USB_USE_SOFTINTR */ 2240 splx(s); 2241 2242 /* 2243 * Step 3: Remove any vestiges of the xfer from the hardware. 2244 * The complication here is that the hardware may have executed 2245 * beyond the xfer we're trying to abort. So as we're scanning 2246 * the TDs of this xfer we check if the hardware points to 2247 * any of them. 2248 */ 2249 s = splusb(); /* XXX why? */ 2250 p = xfer->hcpriv; 2251 #ifdef DIAGNOSTIC 2252 if (p == NULL) { 2253 xfer->hcflags &= ~UXFER_ABORTING; /* XXX */ 2254 splx(s); 2255 printf("ohci_abort_xfer: hcpriv is NULL\n"); 2256 return; 2257 } 2258 #endif 2259 #ifdef OHCI_DEBUG 2260 if (ohcidebug > 1) { 2261 DPRINTF(("ohci_abort_xfer: sed=\n")); 2262 ohci_dump_ed(sc, sed); 2263 ohci_dump_tds(sc, p); 2264 } 2265 #endif 2266 headp = O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK; 2267 hit = 0; 2268 for (; p->xfer == xfer; p = n) { 2269 hit |= headp == p->physaddr; 2270 n = p->nexttd; 2271 ohci_free_std(sc, p); 2272 } 2273 /* Zap headp register if hardware pointed inside the xfer. */ 2274 if (hit) { 2275 DPRINTFN(1,("ohci_abort_xfer: set hd=0x%08x, tl=0x%08x\n", 2276 (int)p->physaddr, (int)O32TOH(sed->ed.ed_tailp))); 2277 sed->ed.ed_headp = HTOO32(p->physaddr); /* unlink TDs */ 2278 } else { 2279 DPRINTFN(1,("ohci_abort_xfer: no hit\n")); 2280 } 2281 2282 /* 2283 * Step 4: Turn on hardware again. 2284 */ 2285 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 2286 2287 /* 2288 * Step 5: Execute callback. 2289 */ 2290 wake = xfer->hcflags & UXFER_ABORTWAIT; 2291 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2292 usb_transfer_complete(xfer); 2293 if (wake) 2294 wakeup(&xfer->hcflags); 2295 2296 splx(s); 2297 } 2298 2299 /* 2300 * Data structures and routines to emulate the root hub. 2301 */ 2302 Static usb_device_descriptor_t ohci_devd = { 2303 USB_DEVICE_DESCRIPTOR_SIZE, 2304 UDESC_DEVICE, /* type */ 2305 {0x00, 0x01}, /* USB version */ 2306 UDCLASS_HUB, /* class */ 2307 UDSUBCLASS_HUB, /* subclass */ 2308 UDPROTO_FSHUB, 2309 64, /* max packet */ 2310 {0},{0},{0x00,0x01}, /* device id */ 2311 1,2,0, /* string indicies */ 2312 1 /* # of configurations */ 2313 }; 2314 2315 Static const usb_config_descriptor_t ohci_confd = { 2316 USB_CONFIG_DESCRIPTOR_SIZE, 2317 UDESC_CONFIG, 2318 {USB_CONFIG_DESCRIPTOR_SIZE + 2319 USB_INTERFACE_DESCRIPTOR_SIZE + 2320 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2321 1, 2322 1, 2323 0, 2324 UC_ATTR_MBO | UC_SELF_POWERED, 2325 0 /* max power */ 2326 }; 2327 2328 Static const usb_interface_descriptor_t ohci_ifcd = { 2329 USB_INTERFACE_DESCRIPTOR_SIZE, 2330 UDESC_INTERFACE, 2331 0, 2332 0, 2333 1, 2334 UICLASS_HUB, 2335 UISUBCLASS_HUB, 2336 UIPROTO_FSHUB, 2337 0 2338 }; 2339 2340 Static const usb_endpoint_descriptor_t ohci_endpd = { 2341 .bLength = USB_ENDPOINT_DESCRIPTOR_SIZE, 2342 .bDescriptorType = UDESC_ENDPOINT, 2343 .bEndpointAddress = UE_DIR_IN | OHCI_INTR_ENDPT, 2344 .bmAttributes = UE_INTERRUPT, 2345 .wMaxPacketSize = {8, 0}, /* max packet */ 2346 .bInterval = 255, 2347 }; 2348 2349 Static const usb_hub_descriptor_t ohci_hubd = { 2350 .bDescLength = USB_HUB_DESCRIPTOR_SIZE, 2351 .bDescriptorType = UDESC_HUB, 2352 }; 2353 2354 /* 2355 * Simulate a hardware hub by handling all the necessary requests. 2356 */ 2357 Static usbd_status 2358 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2359 { 2360 usbd_status err; 2361 2362 /* Insert last in queue. */ 2363 err = usb_insert_transfer(xfer); 2364 if (err) 2365 return (err); 2366 2367 /* Pipe isn't running, start first */ 2368 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2369 } 2370 2371 Static usbd_status 2372 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2373 { 2374 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2375 usb_device_request_t *req; 2376 void *buf = NULL; 2377 int port, i; 2378 int s, len, value, index, l, totlen = 0; 2379 usb_port_status_t ps; 2380 usb_hub_descriptor_t hubd; 2381 usbd_status err; 2382 u_int32_t v; 2383 2384 if (sc->sc_dying) 2385 return (USBD_IOERROR); 2386 2387 #ifdef DIAGNOSTIC 2388 if (!(xfer->rqflags & URQ_REQUEST)) 2389 /* XXX panic */ 2390 return (USBD_INVAL); 2391 #endif 2392 req = &xfer->request; 2393 2394 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2395 req->bmRequestType, req->bRequest)); 2396 2397 len = UGETW(req->wLength); 2398 value = UGETW(req->wValue); 2399 index = UGETW(req->wIndex); 2400 2401 if (len != 0) 2402 buf = KERNADDR(&xfer->dmabuf, 0); 2403 2404 #define C(x,y) ((x) | ((y) << 8)) 2405 switch(C(req->bRequest, req->bmRequestType)) { 2406 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2407 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2408 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2409 /* 2410 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2411 * for the integrated root hub. 2412 */ 2413 break; 2414 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2415 if (len > 0) { 2416 *(u_int8_t *)buf = sc->sc_conf; 2417 totlen = 1; 2418 } 2419 break; 2420 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2421 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2422 if (len == 0) 2423 break; 2424 switch(value >> 8) { 2425 case UDESC_DEVICE: 2426 if ((value & 0xff) != 0) { 2427 err = USBD_IOERROR; 2428 goto ret; 2429 } 2430 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2431 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2432 memcpy(buf, &ohci_devd, l); 2433 break; 2434 case UDESC_CONFIG: 2435 if ((value & 0xff) != 0) { 2436 err = USBD_IOERROR; 2437 goto ret; 2438 } 2439 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2440 memcpy(buf, &ohci_confd, l); 2441 buf = (char *)buf + l; 2442 len -= l; 2443 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2444 totlen += l; 2445 memcpy(buf, &ohci_ifcd, l); 2446 buf = (char *)buf + l; 2447 len -= l; 2448 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2449 totlen += l; 2450 memcpy(buf, &ohci_endpd, l); 2451 break; 2452 case UDESC_STRING: 2453 #define sd ((usb_string_descriptor_t *)buf) 2454 switch (value & 0xff) { 2455 case 0: /* Language table */ 2456 totlen = usb_makelangtbl(sd, len); 2457 break; 2458 case 1: /* Vendor */ 2459 totlen = usb_makestrdesc(sd, len, 2460 sc->sc_vendor); 2461 break; 2462 case 2: /* Product */ 2463 totlen = usb_makestrdesc(sd, len, 2464 "OHCI root hub"); 2465 break; 2466 } 2467 #undef sd 2468 break; 2469 default: 2470 err = USBD_IOERROR; 2471 goto ret; 2472 } 2473 break; 2474 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2475 if (len > 0) { 2476 *(u_int8_t *)buf = 0; 2477 totlen = 1; 2478 } 2479 break; 2480 case C(UR_GET_STATUS, UT_READ_DEVICE): 2481 if (len > 1) { 2482 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2483 totlen = 2; 2484 } 2485 break; 2486 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2487 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2488 if (len > 1) { 2489 USETW(((usb_status_t *)buf)->wStatus, 0); 2490 totlen = 2; 2491 } 2492 break; 2493 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2494 if (value >= USB_MAX_DEVICES) { 2495 err = USBD_IOERROR; 2496 goto ret; 2497 } 2498 sc->sc_addr = value; 2499 break; 2500 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2501 if (value != 0 && value != 1) { 2502 err = USBD_IOERROR; 2503 goto ret; 2504 } 2505 sc->sc_conf = value; 2506 break; 2507 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2508 break; 2509 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2510 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2511 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2512 err = USBD_IOERROR; 2513 goto ret; 2514 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2515 break; 2516 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2517 break; 2518 /* Hub requests */ 2519 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2520 break; 2521 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2522 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2523 "port=%d feature=%d\n", 2524 index, value)); 2525 if (index < 1 || index > sc->sc_noport) { 2526 err = USBD_IOERROR; 2527 goto ret; 2528 } 2529 port = OHCI_RH_PORT_STATUS(index); 2530 switch(value) { 2531 case UHF_PORT_ENABLE: 2532 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2533 break; 2534 case UHF_PORT_SUSPEND: 2535 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2536 break; 2537 case UHF_PORT_POWER: 2538 /* Yes, writing to the LOW_SPEED bit clears power. */ 2539 OWRITE4(sc, port, UPS_LOW_SPEED); 2540 break; 2541 case UHF_C_PORT_CONNECTION: 2542 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2543 break; 2544 case UHF_C_PORT_ENABLE: 2545 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2546 break; 2547 case UHF_C_PORT_SUSPEND: 2548 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2549 break; 2550 case UHF_C_PORT_OVER_CURRENT: 2551 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2552 break; 2553 case UHF_C_PORT_RESET: 2554 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2555 break; 2556 default: 2557 err = USBD_IOERROR; 2558 goto ret; 2559 } 2560 switch(value) { 2561 case UHF_C_PORT_CONNECTION: 2562 case UHF_C_PORT_ENABLE: 2563 case UHF_C_PORT_SUSPEND: 2564 case UHF_C_PORT_OVER_CURRENT: 2565 case UHF_C_PORT_RESET: 2566 /* Enable RHSC interrupt if condition is cleared. */ 2567 if ((OREAD4(sc, port) >> 16) == 0) 2568 ohci_rhsc_enable(sc); 2569 break; 2570 default: 2571 break; 2572 } 2573 break; 2574 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2575 if (len == 0) 2576 break; 2577 if ((value & 0xff) != 0) { 2578 err = USBD_IOERROR; 2579 goto ret; 2580 } 2581 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2582 hubd = ohci_hubd; 2583 hubd.bNbrPorts = sc->sc_noport; 2584 USETW(hubd.wHubCharacteristics, 2585 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2586 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2587 /* XXX overcurrent */ 2588 ); 2589 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2590 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2591 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2592 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2593 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2594 l = min(len, hubd.bDescLength); 2595 totlen = l; 2596 memcpy(buf, &hubd, l); 2597 break; 2598 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2599 if (len != 4) { 2600 err = USBD_IOERROR; 2601 goto ret; 2602 } 2603 memset(buf, 0, len); /* ? XXX */ 2604 totlen = len; 2605 break; 2606 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2607 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2608 index)); 2609 if (index < 1 || index > sc->sc_noport) { 2610 err = USBD_IOERROR; 2611 goto ret; 2612 } 2613 if (len != 4) { 2614 err = USBD_IOERROR; 2615 goto ret; 2616 } 2617 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2618 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2619 v)); 2620 USETW(ps.wPortStatus, v); 2621 USETW(ps.wPortChange, v >> 16); 2622 l = min(len, sizeof ps); 2623 memcpy(buf, &ps, l); 2624 totlen = l; 2625 break; 2626 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2627 err = USBD_IOERROR; 2628 goto ret; 2629 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2630 break; 2631 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2632 if (index < 1 || index > sc->sc_noport) { 2633 err = USBD_IOERROR; 2634 goto ret; 2635 } 2636 port = OHCI_RH_PORT_STATUS(index); 2637 switch(value) { 2638 case UHF_PORT_ENABLE: 2639 OWRITE4(sc, port, UPS_PORT_ENABLED); 2640 break; 2641 case UHF_PORT_SUSPEND: 2642 OWRITE4(sc, port, UPS_SUSPEND); 2643 break; 2644 case UHF_PORT_RESET: 2645 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2646 index)); 2647 OWRITE4(sc, port, UPS_RESET); 2648 for (i = 0; i < 5; i++) { 2649 usb_delay_ms(&sc->sc_bus, 2650 USB_PORT_ROOT_RESET_DELAY); 2651 if (sc->sc_dying) { 2652 err = USBD_IOERROR; 2653 goto ret; 2654 } 2655 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2656 break; 2657 } 2658 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2659 index, OREAD4(sc, port))); 2660 break; 2661 case UHF_PORT_POWER: 2662 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2663 "%d\n", index)); 2664 OWRITE4(sc, port, UPS_PORT_POWER); 2665 break; 2666 default: 2667 err = USBD_IOERROR; 2668 goto ret; 2669 } 2670 break; 2671 default: 2672 err = USBD_IOERROR; 2673 goto ret; 2674 } 2675 xfer->actlen = totlen; 2676 err = USBD_NORMAL_COMPLETION; 2677 ret: 2678 xfer->status = err; 2679 s = splusb(); 2680 usb_transfer_complete(xfer); 2681 splx(s); 2682 return (USBD_IN_PROGRESS); 2683 } 2684 2685 /* Abort a root control request. */ 2686 Static void 2687 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2688 { 2689 /* Nothing to do, all transfers are synchronous. */ 2690 } 2691 2692 /* Close the root pipe. */ 2693 Static void 2694 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2695 { 2696 DPRINTF(("ohci_root_ctrl_close\n")); 2697 /* Nothing to do. */ 2698 } 2699 2700 Static usbd_status 2701 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2702 { 2703 usbd_status err; 2704 2705 /* Insert last in queue. */ 2706 err = usb_insert_transfer(xfer); 2707 if (err) 2708 return (err); 2709 2710 /* Pipe isn't running, start first */ 2711 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2712 } 2713 2714 Static usbd_status 2715 ohci_root_intr_start(usbd_xfer_handle xfer) 2716 { 2717 usbd_pipe_handle pipe = xfer->pipe; 2718 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2719 2720 if (sc->sc_dying) 2721 return (USBD_IOERROR); 2722 2723 sc->sc_intrxfer = xfer; 2724 2725 return (USBD_IN_PROGRESS); 2726 } 2727 2728 /* Abort a root interrupt request. */ 2729 Static void 2730 ohci_root_intr_abort(usbd_xfer_handle xfer) 2731 { 2732 int s; 2733 2734 if (xfer->pipe->intrxfer == xfer) { 2735 DPRINTF(("ohci_root_intr_abort: remove\n")); 2736 xfer->pipe->intrxfer = NULL; 2737 } 2738 xfer->status = USBD_CANCELLED; 2739 s = splusb(); 2740 usb_transfer_complete(xfer); 2741 splx(s); 2742 } 2743 2744 /* Close the root pipe. */ 2745 Static void 2746 ohci_root_intr_close(usbd_pipe_handle pipe) 2747 { 2748 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2749 2750 DPRINTF(("ohci_root_intr_close\n")); 2751 2752 sc->sc_intrxfer = NULL; 2753 } 2754 2755 /************************/ 2756 2757 Static usbd_status 2758 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2759 { 2760 usbd_status err; 2761 2762 /* Insert last in queue. */ 2763 err = usb_insert_transfer(xfer); 2764 if (err) 2765 return (err); 2766 2767 /* Pipe isn't running, start first */ 2768 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2769 } 2770 2771 Static usbd_status 2772 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2773 { 2774 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2775 usbd_status err; 2776 2777 if (sc->sc_dying) 2778 return (USBD_IOERROR); 2779 2780 #ifdef DIAGNOSTIC 2781 if (!(xfer->rqflags & URQ_REQUEST)) { 2782 /* XXX panic */ 2783 printf("ohci_device_ctrl_transfer: not a request\n"); 2784 return (USBD_INVAL); 2785 } 2786 #endif 2787 2788 err = ohci_device_request(xfer); 2789 if (err) 2790 return (err); 2791 2792 if (sc->sc_bus.use_polling) 2793 ohci_waitintr(sc, xfer); 2794 return (USBD_IN_PROGRESS); 2795 } 2796 2797 /* Abort a device control request. */ 2798 Static void 2799 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2800 { 2801 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2802 ohci_abort_xfer(xfer, USBD_CANCELLED); 2803 } 2804 2805 /* Close a device control pipe. */ 2806 Static void 2807 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2808 { 2809 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2810 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2811 2812 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2813 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2814 ohci_free_std(sc, opipe->tail.td); 2815 } 2816 2817 /************************/ 2818 2819 Static void 2820 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2821 { 2822 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2823 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2824 2825 opipe->sed->ed.ed_headp &= HTOO32(~OHCI_TOGGLECARRY); 2826 } 2827 2828 Static void 2829 ohci_noop(usbd_pipe_handle pipe) 2830 { 2831 } 2832 2833 Static usbd_status 2834 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2835 { 2836 usbd_status err; 2837 2838 /* Insert last in queue. */ 2839 err = usb_insert_transfer(xfer); 2840 if (err) 2841 return (err); 2842 2843 /* Pipe isn't running, start first */ 2844 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2845 } 2846 2847 Static usbd_status 2848 ohci_device_bulk_start(usbd_xfer_handle xfer) 2849 { 2850 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2851 usbd_device_handle dev = opipe->pipe.device; 2852 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2853 int addr = dev->address; 2854 ohci_soft_td_t *data, *tail, *tdp; 2855 ohci_soft_ed_t *sed; 2856 int s, len, isread, endpt; 2857 usbd_status err; 2858 2859 if (sc->sc_dying) 2860 return (USBD_IOERROR); 2861 2862 #ifdef DIAGNOSTIC 2863 if (xfer->rqflags & URQ_REQUEST) { 2864 /* XXX panic */ 2865 printf("ohci_device_bulk_start: a request\n"); 2866 return (USBD_INVAL); 2867 } 2868 #endif 2869 2870 len = xfer->length; 2871 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2872 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2873 sed = opipe->sed; 2874 2875 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2876 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2877 endpt)); 2878 2879 opipe->u.bulk.isread = isread; 2880 opipe->u.bulk.length = len; 2881 2882 /* Update device address */ 2883 sed->ed.ed_flags = HTOO32( 2884 (O32TOH(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2885 OHCI_ED_SET_FA(addr)); 2886 2887 /* Allocate a chain of new TDs (including a new tail). */ 2888 data = opipe->tail.td; 2889 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2890 data, &tail); 2891 /* We want interrupt at the end of the transfer. */ 2892 tail->td.td_flags &= HTOO32(~OHCI_TD_INTR_MASK); 2893 tail->td.td_flags |= HTOO32(OHCI_TD_SET_DI(1)); 2894 tail->flags |= OHCI_CALL_DONE; 2895 tail = tail->nexttd; /* point at sentinel */ 2896 if (err) 2897 return (err); 2898 2899 tail->xfer = NULL; 2900 xfer->hcpriv = data; 2901 2902 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2903 "td_cbp=0x%08x td_be=0x%08x\n", 2904 (int)O32TOH(sed->ed.ed_flags), 2905 (int)O32TOH(data->td.td_flags), 2906 (int)O32TOH(data->td.td_cbp), 2907 (int)O32TOH(data->td.td_be))); 2908 2909 #ifdef OHCI_DEBUG 2910 if (ohcidebug > 5) { 2911 ohci_dump_ed(sc, sed); 2912 ohci_dump_tds(sc, data); 2913 } 2914 #endif 2915 2916 /* Insert ED in schedule */ 2917 s = splusb(); 2918 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2919 tdp->xfer = xfer; 2920 } 2921 sed->ed.ed_tailp = HTOO32(tail->physaddr); 2922 opipe->tail.td = tail; 2923 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 2924 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2925 if (xfer->timeout && !sc->sc_bus.use_polling) { 2926 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2927 ohci_timeout, xfer); 2928 } 2929 2930 #if 0 2931 /* This goes wrong if we are too slow. */ 2932 if (ohcidebug > 10) { 2933 delay(10000); 2934 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2935 OREAD4(sc, OHCI_COMMAND_STATUS))); 2936 ohci_dump_ed(sc, sed); 2937 ohci_dump_tds(sc, data); 2938 } 2939 #endif 2940 2941 splx(s); 2942 2943 return (USBD_IN_PROGRESS); 2944 } 2945 2946 Static void 2947 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2948 { 2949 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2950 ohci_abort_xfer(xfer, USBD_CANCELLED); 2951 } 2952 2953 /* 2954 * Close a device bulk pipe. 2955 */ 2956 Static void 2957 ohci_device_bulk_close(usbd_pipe_handle pipe) 2958 { 2959 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2960 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2961 2962 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2963 ohci_close_pipe(pipe, sc->sc_bulk_head); 2964 ohci_free_std(sc, opipe->tail.td); 2965 } 2966 2967 /************************/ 2968 2969 Static usbd_status 2970 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2971 { 2972 usbd_status err; 2973 2974 /* Insert last in queue. */ 2975 err = usb_insert_transfer(xfer); 2976 if (err) 2977 return (err); 2978 2979 /* Pipe isn't running, start first */ 2980 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2981 } 2982 2983 Static usbd_status 2984 ohci_device_intr_start(usbd_xfer_handle xfer) 2985 { 2986 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2987 usbd_device_handle dev = opipe->pipe.device; 2988 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2989 ohci_soft_ed_t *sed = opipe->sed; 2990 ohci_soft_td_t *data, *tail; 2991 int s, len, isread, endpt; 2992 2993 if (sc->sc_dying) 2994 return (USBD_IOERROR); 2995 2996 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2997 "flags=%d priv=%p\n", 2998 xfer, xfer->length, xfer->flags, xfer->priv)); 2999 3000 #ifdef DIAGNOSTIC 3001 if (xfer->rqflags & URQ_REQUEST) 3002 panic("ohci_device_intr_transfer: a request"); 3003 #endif 3004 3005 len = xfer->length; 3006 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 3007 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3008 3009 data = opipe->tail.td; 3010 tail = ohci_alloc_std(sc); 3011 if (tail == NULL) 3012 return (USBD_NOMEM); 3013 tail->xfer = NULL; 3014 3015 data->td.td_flags = HTOO32( 3016 isread ? OHCI_TD_IN : OHCI_TD_OUT | 3017 OHCI_TD_NOCC | 3018 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 3019 if (xfer->flags & USBD_SHORT_XFER_OK) 3020 data->td.td_flags |= HTOO32(OHCI_TD_R); 3021 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 3022 data->nexttd = tail; 3023 data->td.td_nexttd = HTOO32(tail->physaddr); 3024 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + len - 1); 3025 data->len = len; 3026 data->xfer = xfer; 3027 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 3028 xfer->hcpriv = data; 3029 3030 #ifdef OHCI_DEBUG 3031 if (ohcidebug > 5) { 3032 DPRINTF(("ohci_device_intr_transfer:\n")); 3033 ohci_dump_ed(sc, sed); 3034 ohci_dump_tds(sc, data); 3035 } 3036 #endif 3037 3038 /* Insert ED in schedule */ 3039 s = splusb(); 3040 sed->ed.ed_tailp = HTOO32(tail->physaddr); 3041 opipe->tail.td = tail; 3042 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3043 3044 #if 0 3045 /* 3046 * This goes horribly wrong, printing thousands of descriptors, 3047 * because false references are followed due to the fact that the 3048 * TD is gone. 3049 */ 3050 if (ohcidebug > 5) { 3051 usb_delay_ms(&sc->sc_bus, 5); 3052 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 3053 OREAD4(sc, OHCI_COMMAND_STATUS))); 3054 ohci_dump_ed(sc, sed); 3055 ohci_dump_tds(sc, data); 3056 } 3057 #endif 3058 splx(s); 3059 3060 return (USBD_IN_PROGRESS); 3061 } 3062 3063 /* Abort a device control request. */ 3064 Static void 3065 ohci_device_intr_abort(usbd_xfer_handle xfer) 3066 { 3067 if (xfer->pipe->intrxfer == xfer) { 3068 DPRINTF(("ohci_device_intr_abort: remove\n")); 3069 xfer->pipe->intrxfer = NULL; 3070 } 3071 ohci_abort_xfer(xfer, USBD_CANCELLED); 3072 } 3073 3074 /* Close a device interrupt pipe. */ 3075 Static void 3076 ohci_device_intr_close(usbd_pipe_handle pipe) 3077 { 3078 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3079 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3080 int nslots = opipe->u.intr.nslots; 3081 int pos = opipe->u.intr.pos; 3082 int j; 3083 ohci_soft_ed_t *p, *sed = opipe->sed; 3084 int s; 3085 3086 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 3087 pipe, nslots, pos)); 3088 s = splusb(); 3089 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 3090 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 3091 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 3092 usb_delay_ms(&sc->sc_bus, 2); 3093 3094 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 3095 continue; 3096 #ifdef DIAGNOSTIC 3097 if (p == NULL) 3098 panic("ohci_device_intr_close: ED not found"); 3099 #endif 3100 p->next = sed->next; 3101 p->ed.ed_nexted = sed->ed.ed_nexted; 3102 splx(s); 3103 3104 for (j = 0; j < nslots; j++) 3105 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 3106 3107 ohci_free_std(sc, opipe->tail.td); 3108 ohci_free_sed(sc, opipe->sed); 3109 } 3110 3111 Static usbd_status 3112 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 3113 { 3114 int i, j, s, best; 3115 u_int npoll, slow, shigh, nslots; 3116 u_int bestbw, bw; 3117 ohci_soft_ed_t *hsed, *sed = opipe->sed; 3118 3119 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 3120 if (ival == 0) { 3121 printf("ohci_setintr: 0 interval\n"); 3122 return (USBD_INVAL); 3123 } 3124 3125 npoll = OHCI_NO_INTRS; 3126 while (npoll > ival) 3127 npoll /= 2; 3128 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 3129 3130 /* 3131 * We now know which level in the tree the ED must go into. 3132 * Figure out which slot has most bandwidth left over. 3133 * Slots to examine: 3134 * npoll 3135 * 1 0 3136 * 2 1 2 3137 * 4 3 4 5 6 3138 * 8 7 8 9 10 11 12 13 14 3139 * N (N-1) .. (N-1+N-1) 3140 */ 3141 slow = npoll-1; 3142 shigh = slow + npoll; 3143 nslots = OHCI_NO_INTRS / npoll; 3144 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 3145 bw = 0; 3146 for (j = 0; j < nslots; j++) 3147 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 3148 if (bw < bestbw) { 3149 best = i; 3150 bestbw = bw; 3151 } 3152 } 3153 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 3154 best, slow, shigh, bestbw)); 3155 3156 s = splusb(); 3157 hsed = sc->sc_eds[best]; 3158 sed->next = hsed->next; 3159 sed->ed.ed_nexted = hsed->ed.ed_nexted; 3160 hsed->next = sed; 3161 hsed->ed.ed_nexted = HTOO32(sed->physaddr); 3162 splx(s); 3163 3164 for (j = 0; j < nslots; j++) 3165 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 3166 opipe->u.intr.nslots = nslots; 3167 opipe->u.intr.pos = best; 3168 3169 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 3170 return (USBD_NORMAL_COMPLETION); 3171 } 3172 3173 /***********************/ 3174 3175 usbd_status 3176 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 3177 { 3178 usbd_status err; 3179 3180 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3181 3182 /* Put it on our queue, */ 3183 err = usb_insert_transfer(xfer); 3184 3185 /* bail out on error, */ 3186 if (err && err != USBD_IN_PROGRESS) 3187 return (err); 3188 3189 /* XXX should check inuse here */ 3190 3191 /* insert into schedule, */ 3192 ohci_device_isoc_enter(xfer); 3193 3194 /* and start if the pipe wasn't running */ 3195 if (!err) 3196 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3197 3198 return (err); 3199 } 3200 3201 void 3202 ohci_device_isoc_enter(usbd_xfer_handle xfer) 3203 { 3204 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3205 usbd_device_handle dev = opipe->pipe.device; 3206 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3207 ohci_soft_ed_t *sed = opipe->sed; 3208 struct iso *iso = &opipe->u.iso; 3209 ohci_soft_itd_t *sitd, *nsitd; 3210 ohci_physaddr_t buf, offs, noffs, bp0; 3211 int i, ncur, nframes; 3212 int s; 3213 3214 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3215 "nframes=%d\n", 3216 iso->inuse, iso->next, xfer, xfer->nframes)); 3217 3218 if (sc->sc_dying) 3219 return; 3220 3221 if (iso->next == -1) { 3222 /* Not in use yet, schedule it a few frames ahead. */ 3223 iso->next = O32TOH(sc->sc_hcca->hcca_frame_number) + 5; 3224 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3225 iso->next)); 3226 } 3227 3228 sitd = opipe->tail.itd; 3229 buf = DMAADDR(&xfer->dmabuf, 0); 3230 bp0 = OHCI_PAGE(buf); 3231 offs = OHCI_PAGE_OFFSET(buf); 3232 nframes = xfer->nframes; 3233 xfer->hcpriv = sitd; 3234 for (i = ncur = 0; i < nframes; i++, ncur++) { 3235 noffs = offs + xfer->frlengths[i]; 3236 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3237 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3238 3239 /* Allocate next ITD */ 3240 nsitd = ohci_alloc_sitd(sc); 3241 if (nsitd == NULL) { 3242 /* XXX what now? */ 3243 printf("%s: isoc TD alloc failed\n", 3244 USBDEVNAME(sc->sc_bus.bdev)); 3245 return; 3246 } 3247 3248 /* Fill current ITD */ 3249 sitd->itd.itd_flags = HTOO32( 3250 OHCI_ITD_NOCC | 3251 OHCI_ITD_SET_SF(iso->next) | 3252 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3253 OHCI_ITD_SET_FC(ncur)); 3254 sitd->itd.itd_bp0 = HTOO32(bp0); 3255 sitd->nextitd = nsitd; 3256 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3257 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3258 sitd->xfer = xfer; 3259 sitd->flags = 0; 3260 3261 sitd = nsitd; 3262 iso->next = iso->next + ncur; 3263 bp0 = OHCI_PAGE(buf + offs); 3264 ncur = 0; 3265 } 3266 sitd->itd.itd_offset[ncur] = HTOO16(OHCI_ITD_MK_OFFS(offs)); 3267 offs = noffs; 3268 } 3269 nsitd = ohci_alloc_sitd(sc); 3270 if (nsitd == NULL) { 3271 /* XXX what now? */ 3272 printf("%s: isoc TD alloc failed\n", 3273 USBDEVNAME(sc->sc_bus.bdev)); 3274 return; 3275 } 3276 /* Fixup last used ITD */ 3277 sitd->itd.itd_flags = HTOO32( 3278 OHCI_ITD_NOCC | 3279 OHCI_ITD_SET_SF(iso->next) | 3280 OHCI_ITD_SET_DI(0) | 3281 OHCI_ITD_SET_FC(ncur)); 3282 sitd->itd.itd_bp0 = HTOO32(bp0); 3283 sitd->nextitd = nsitd; 3284 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3285 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3286 sitd->xfer = xfer; 3287 sitd->flags = OHCI_CALL_DONE; 3288 3289 iso->next = iso->next + ncur; 3290 iso->inuse += nframes; 3291 3292 xfer->actlen = offs; /* XXX pretend we did it all */ 3293 3294 xfer->status = USBD_IN_PROGRESS; 3295 3296 #ifdef OHCI_DEBUG 3297 if (ohcidebug > 5) { 3298 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3299 O32TOH(sc->sc_hcca->hcca_frame_number))); 3300 ohci_dump_itds(sc, xfer->hcpriv); 3301 ohci_dump_ed(sc, sed); 3302 } 3303 #endif 3304 3305 s = splusb(); 3306 sed->ed.ed_tailp = HTOO32(nsitd->physaddr); 3307 opipe->tail.itd = nsitd; 3308 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3309 splx(s); 3310 3311 #ifdef OHCI_DEBUG 3312 if (ohcidebug > 5) { 3313 delay(150000); 3314 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3315 O32TOH(sc->sc_hcca->hcca_frame_number))); 3316 ohci_dump_itds(sc, xfer->hcpriv); 3317 ohci_dump_ed(sc, sed); 3318 } 3319 #endif 3320 } 3321 3322 usbd_status 3323 ohci_device_isoc_start(usbd_xfer_handle xfer) 3324 { 3325 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3326 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3327 3328 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3329 3330 if (sc->sc_dying) 3331 return (USBD_IOERROR); 3332 3333 #ifdef DIAGNOSTIC 3334 if (xfer->status != USBD_IN_PROGRESS) 3335 printf("ohci_device_isoc_start: not in progress %p\n", xfer); 3336 #endif 3337 3338 /* XXX anything to do? */ 3339 3340 return (USBD_IN_PROGRESS); 3341 } 3342 3343 void 3344 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3345 { 3346 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3347 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3348 ohci_soft_ed_t *sed; 3349 ohci_soft_itd_t *sitd; 3350 int s; 3351 3352 s = splusb(); 3353 3354 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3355 3356 /* Transfer is already done. */ 3357 if (xfer->status != USBD_NOT_STARTED && 3358 xfer->status != USBD_IN_PROGRESS) { 3359 splx(s); 3360 printf("ohci_device_isoc_abort: early return\n"); 3361 return; 3362 } 3363 3364 /* Give xfer the requested abort code. */ 3365 xfer->status = USBD_CANCELLED; 3366 3367 sed = opipe->sed; 3368 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 3369 3370 sitd = xfer->hcpriv; 3371 #ifdef DIAGNOSTIC 3372 if (sitd == NULL) { 3373 splx(s); 3374 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3375 return; 3376 } 3377 #endif 3378 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3379 #ifdef DIAGNOSTIC 3380 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3381 sitd->isdone = 1; 3382 #endif 3383 } 3384 3385 splx(s); 3386 3387 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3388 3389 s = splusb(); 3390 3391 /* Run callback. */ 3392 usb_transfer_complete(xfer); 3393 3394 sed->ed.ed_headp = HTOO32(sitd->physaddr); /* unlink TDs */ 3395 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 3396 3397 splx(s); 3398 } 3399 3400 void 3401 ohci_device_isoc_done(usbd_xfer_handle xfer) 3402 { 3403 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3404 } 3405 3406 usbd_status 3407 ohci_setup_isoc(usbd_pipe_handle pipe) 3408 { 3409 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3410 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3411 struct iso *iso = &opipe->u.iso; 3412 int s; 3413 3414 iso->next = -1; 3415 iso->inuse = 0; 3416 3417 s = splusb(); 3418 ohci_add_ed(sc, opipe->sed, sc->sc_isoc_head); 3419 splx(s); 3420 3421 return (USBD_NORMAL_COMPLETION); 3422 } 3423 3424 void 3425 ohci_device_isoc_close(usbd_pipe_handle pipe) 3426 { 3427 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3428 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3429 3430 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3431 ohci_close_pipe(pipe, sc->sc_isoc_head); 3432 #ifdef DIAGNOSTIC 3433 opipe->tail.itd->isdone = 1; 3434 #endif 3435 ohci_free_sitd(sc, opipe->tail.itd); 3436 } 3437
Indexes created Fri Oct 03 02:09:57 GMT 2025