ohci.c revision 1.185
1 /* $NetBSD: ohci.c,v 1.185 2007/12/09 20:28:23 jmcneill 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 1.185 2007/12/09 20:28:23 jmcneill 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 85 #if defined(__FreeBSD__) 86 #include <machine/clock.h> 87 88 #define delay(d) DELAY(d) 89 #endif 90 91 #if defined(__OpenBSD__) 92 struct cfdriver ohci_cd = { 93 NULL, "ohci", DV_DULL 94 }; 95 #endif 96 97 #ifdef OHCI_DEBUG 98 #define DPRINTF(x) if (ohcidebug) logprintf x 99 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 100 int ohcidebug = 0; 101 #ifndef __NetBSD__ 102 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 103 #endif 104 #else 105 #define DPRINTF(x) 106 #define DPRINTFN(n,x) 107 #endif 108 109 #if BYTE_ORDER == BIG_ENDIAN 110 #define SWAP_ENDIAN OHCI_LITTLE_ENDIAN 111 #else 112 #define SWAP_ENDIAN OHCI_BIG_ENDIAN 113 #endif 114 115 #define O16TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap16(val) : val) 116 #define O32TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap32(val) : val) 117 #define HTOO16(val) O16TOH(val) 118 #define HTOO32(val) O32TOH(val) 119 120 struct ohci_pipe; 121 122 Static ohci_soft_ed_t *ohci_alloc_sed(ohci_softc_t *); 123 Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *); 124 125 Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *); 126 Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *); 127 128 Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *); 129 Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *); 130 131 #if 0 132 Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *, 133 ohci_soft_td_t *); 134 #endif 135 Static usbd_status ohci_alloc_std_chain(struct ohci_pipe *, 136 ohci_softc_t *, int, int, usbd_xfer_handle, 137 ohci_soft_td_t *, ohci_soft_td_t **); 138 139 Static void ohci_shutdown(void *v); 140 Static usbd_status ohci_open(usbd_pipe_handle); 141 Static void ohci_poll(struct usbd_bus *); 142 Static void ohci_softintr(void *); 143 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 144 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 145 146 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 147 Static void ohci_add_ed(ohci_softc_t *, ohci_soft_ed_t *, 148 ohci_soft_ed_t *); 149 150 Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 151 Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *); 152 Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *); 153 Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t); 154 Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *); 155 Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *); 156 Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t); 157 158 Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe); 159 Static void ohci_device_isoc_enter(usbd_xfer_handle); 160 161 Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 162 Static void ohci_freem(struct usbd_bus *, usb_dma_t *); 163 164 Static usbd_xfer_handle ohci_allocx(struct usbd_bus *); 165 Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle); 166 167 Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle); 168 Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle); 169 Static void ohci_root_ctrl_abort(usbd_xfer_handle); 170 Static void ohci_root_ctrl_close(usbd_pipe_handle); 171 Static void ohci_root_ctrl_done(usbd_xfer_handle); 172 173 Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle); 174 Static usbd_status ohci_root_intr_start(usbd_xfer_handle); 175 Static void ohci_root_intr_abort(usbd_xfer_handle); 176 Static void ohci_root_intr_close(usbd_pipe_handle); 177 Static void ohci_root_intr_done(usbd_xfer_handle); 178 179 Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle); 180 Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle); 181 Static void ohci_device_ctrl_abort(usbd_xfer_handle); 182 Static void ohci_device_ctrl_close(usbd_pipe_handle); 183 Static void ohci_device_ctrl_done(usbd_xfer_handle); 184 185 Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle); 186 Static usbd_status ohci_device_bulk_start(usbd_xfer_handle); 187 Static void ohci_device_bulk_abort(usbd_xfer_handle); 188 Static void ohci_device_bulk_close(usbd_pipe_handle); 189 Static void ohci_device_bulk_done(usbd_xfer_handle); 190 191 Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle); 192 Static usbd_status ohci_device_intr_start(usbd_xfer_handle); 193 Static void ohci_device_intr_abort(usbd_xfer_handle); 194 Static void ohci_device_intr_close(usbd_pipe_handle); 195 Static void ohci_device_intr_done(usbd_xfer_handle); 196 197 Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle); 198 Static usbd_status ohci_device_isoc_start(usbd_xfer_handle); 199 Static void ohci_device_isoc_abort(usbd_xfer_handle); 200 Static void ohci_device_isoc_close(usbd_pipe_handle); 201 Static void ohci_device_isoc_done(usbd_xfer_handle); 202 203 Static usbd_status ohci_device_setintr(ohci_softc_t *sc, 204 struct ohci_pipe *pipe, int ival); 205 206 Static int ohci_str(usb_string_descriptor_t *, int, const char *); 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 shutdownhook_disestablish(sc->sc_shutdownhook); 399 #endif 400 401 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 402 403 /* free data structures XXX */ 404 405 return (rv); 406 } 407 #endif 408 409 ohci_soft_ed_t * 410 ohci_alloc_sed(ohci_softc_t *sc) 411 { 412 ohci_soft_ed_t *sed; 413 usbd_status err; 414 int i, offs; 415 usb_dma_t dma; 416 417 if (sc->sc_freeeds == NULL) { 418 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 419 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 420 OHCI_ED_ALIGN, &dma); 421 if (err) 422 return (0); 423 for(i = 0; i < OHCI_SED_CHUNK; i++) { 424 offs = i * OHCI_SED_SIZE; 425 sed = KERNADDR(&dma, offs); 426 sed->physaddr = DMAADDR(&dma, offs); 427 sed->next = sc->sc_freeeds; 428 sc->sc_freeeds = sed; 429 } 430 } 431 sed = sc->sc_freeeds; 432 sc->sc_freeeds = sed->next; 433 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 434 sed->next = 0; 435 return (sed); 436 } 437 438 void 439 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 440 { 441 sed->next = sc->sc_freeeds; 442 sc->sc_freeeds = sed; 443 } 444 445 ohci_soft_td_t * 446 ohci_alloc_std(ohci_softc_t *sc) 447 { 448 ohci_soft_td_t *std; 449 usbd_status err; 450 int i, offs; 451 usb_dma_t dma; 452 int s; 453 454 if (sc->sc_freetds == NULL) { 455 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 456 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 457 OHCI_TD_ALIGN, &dma); 458 if (err) 459 return (NULL); 460 s = splusb(); 461 for(i = 0; i < OHCI_STD_CHUNK; i++) { 462 offs = i * OHCI_STD_SIZE; 463 std = KERNADDR(&dma, offs); 464 std->physaddr = DMAADDR(&dma, offs); 465 std->nexttd = sc->sc_freetds; 466 sc->sc_freetds = std; 467 } 468 splx(s); 469 } 470 471 s = splusb(); 472 std = sc->sc_freetds; 473 sc->sc_freetds = std->nexttd; 474 memset(&std->td, 0, sizeof(ohci_td_t)); 475 std->nexttd = NULL; 476 std->xfer = NULL; 477 ohci_hash_add_td(sc, std); 478 splx(s); 479 480 return (std); 481 } 482 483 void 484 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 485 { 486 int s; 487 488 s = splusb(); 489 ohci_hash_rem_td(sc, std); 490 std->nexttd = sc->sc_freetds; 491 sc->sc_freetds = std; 492 splx(s); 493 } 494 495 usbd_status 496 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 497 int alen, int rd, usbd_xfer_handle xfer, 498 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 499 { 500 ohci_soft_td_t *next, *cur; 501 ohci_physaddr_t dataphys, dataphysend; 502 u_int32_t tdflags; 503 int len, curlen; 504 usb_dma_t *dma = &xfer->dmabuf; 505 u_int16_t flags = xfer->flags; 506 507 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 508 509 len = alen; 510 cur = sp; 511 dataphys = DMAADDR(dma, 0); 512 dataphysend = OHCI_PAGE(dataphys + len - 1); 513 tdflags = HTOO32( 514 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 515 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 516 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 517 518 for (;;) { 519 next = ohci_alloc_std(sc); 520 if (next == NULL) 521 goto nomem; 522 523 /* The OHCI hardware can handle at most one page crossing. */ 524 if (OHCI_PAGE(dataphys) == dataphysend || 525 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 526 /* we can handle it in this TD */ 527 curlen = len; 528 } else { 529 /* must use multiple TDs, fill as much as possible. */ 530 curlen = 2 * OHCI_PAGE_SIZE - 531 (dataphys & (OHCI_PAGE_SIZE-1)); 532 /* the length must be a multiple of the max size */ 533 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 534 #ifdef DIAGNOSTIC 535 if (curlen == 0) 536 panic("ohci_alloc_std: curlen == 0"); 537 #endif 538 } 539 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 540 "dataphysend=0x%08x len=%d curlen=%d\n", 541 dataphys, dataphysend, 542 len, curlen)); 543 len -= curlen; 544 545 cur->td.td_flags = tdflags; 546 cur->td.td_cbp = HTOO32(dataphys); 547 cur->nexttd = next; 548 cur->td.td_nexttd = HTOO32(next->physaddr); 549 cur->td.td_be = HTOO32(dataphys + curlen - 1); 550 cur->len = curlen; 551 cur->flags = OHCI_ADD_LEN; 552 cur->xfer = xfer; 553 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 554 dataphys, dataphys + curlen - 1)); 555 if (len == 0) 556 break; 557 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 558 dataphys += curlen; 559 cur = next; 560 } 561 if (!rd && (flags & USBD_FORCE_SHORT_XFER) && 562 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 563 /* Force a 0 length transfer at the end. */ 564 565 cur = next; 566 next = ohci_alloc_std(sc); 567 if (next == NULL) 568 goto nomem; 569 570 cur->td.td_flags = tdflags; 571 cur->td.td_cbp = 0; /* indicate 0 length packet */ 572 cur->nexttd = next; 573 cur->td.td_nexttd = HTOO32(next->physaddr); 574 cur->td.td_be = ~0; 575 cur->len = 0; 576 cur->flags = 0; 577 cur->xfer = xfer; 578 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 579 } 580 *ep = cur; 581 582 return (USBD_NORMAL_COMPLETION); 583 584 nomem: 585 /* XXX free chain */ 586 return (USBD_NOMEM); 587 } 588 589 #if 0 590 Static void 591 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 592 ohci_soft_td_t *stdend) 593 { 594 ohci_soft_td_t *p; 595 596 for (; std != stdend; std = p) { 597 p = std->nexttd; 598 ohci_free_std(sc, std); 599 } 600 } 601 #endif 602 603 ohci_soft_itd_t * 604 ohci_alloc_sitd(ohci_softc_t *sc) 605 { 606 ohci_soft_itd_t *sitd; 607 usbd_status err; 608 int i, s, offs; 609 usb_dma_t dma; 610 611 if (sc->sc_freeitds == NULL) { 612 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 613 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 614 OHCI_ITD_ALIGN, &dma); 615 if (err) 616 return (NULL); 617 s = splusb(); 618 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 619 offs = i * OHCI_SITD_SIZE; 620 sitd = KERNADDR(&dma, offs); 621 sitd->physaddr = DMAADDR(&dma, offs); 622 sitd->nextitd = sc->sc_freeitds; 623 sc->sc_freeitds = sitd; 624 } 625 splx(s); 626 } 627 628 s = splusb(); 629 sitd = sc->sc_freeitds; 630 sc->sc_freeitds = sitd->nextitd; 631 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 632 sitd->nextitd = NULL; 633 sitd->xfer = NULL; 634 ohci_hash_add_itd(sc, sitd); 635 splx(s); 636 637 #ifdef DIAGNOSTIC 638 sitd->isdone = 0; 639 #endif 640 641 return (sitd); 642 } 643 644 void 645 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 646 { 647 int s; 648 649 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 650 651 #ifdef DIAGNOSTIC 652 if (!sitd->isdone) { 653 panic("ohci_free_sitd: sitd=%p not done", sitd); 654 return; 655 } 656 /* Warn double free */ 657 sitd->isdone = 0; 658 #endif 659 660 s = splusb(); 661 ohci_hash_rem_itd(sc, sitd); 662 sitd->nextitd = sc->sc_freeitds; 663 sc->sc_freeitds = sitd; 664 splx(s); 665 } 666 667 usbd_status 668 ohci_init(ohci_softc_t *sc) 669 { 670 ohci_soft_ed_t *sed, *psed; 671 usbd_status err; 672 int i; 673 u_int32_t s, ctl, rwc, ival, hcr, fm, per, rev, desca, descb; 674 675 DPRINTF(("ohci_init: start\n")); 676 #if defined(__OpenBSD__) 677 printf(","); 678 #else 679 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 680 #endif 681 rev = OREAD4(sc, OHCI_REVISION); 682 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 683 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 684 685 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 686 printf("%s: unsupported OHCI revision\n", 687 USBDEVNAME(sc->sc_bus.bdev)); 688 sc->sc_bus.usbrev = USBREV_UNKNOWN; 689 return (USBD_INVAL); 690 } 691 sc->sc_bus.usbrev = USBREV_1_0; 692 693 for (i = 0; i < OHCI_HASH_SIZE; i++) 694 LIST_INIT(&sc->sc_hash_tds[i]); 695 for (i = 0; i < OHCI_HASH_SIZE; i++) 696 LIST_INIT(&sc->sc_hash_itds[i]); 697 698 SIMPLEQ_INIT(&sc->sc_free_xfers); 699 700 #ifdef __NetBSD__ 701 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 702 USB_MEM_RESERVE); 703 #endif 704 705 /* XXX determine alignment by R/W */ 706 /* Allocate the HCCA area. */ 707 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 708 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 709 if (err) 710 return (err); 711 sc->sc_hcca = KERNADDR(&sc->sc_hccadma, 0); 712 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 713 714 sc->sc_eintrs = OHCI_NORMAL_INTRS; 715 716 /* Allocate dummy ED that starts the control list. */ 717 sc->sc_ctrl_head = ohci_alloc_sed(sc); 718 if (sc->sc_ctrl_head == NULL) { 719 err = USBD_NOMEM; 720 goto bad1; 721 } 722 sc->sc_ctrl_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 723 724 /* Allocate dummy ED that starts the bulk list. */ 725 sc->sc_bulk_head = ohci_alloc_sed(sc); 726 if (sc->sc_bulk_head == NULL) { 727 err = USBD_NOMEM; 728 goto bad2; 729 } 730 sc->sc_bulk_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 731 732 /* Allocate dummy ED that starts the isochronous list. */ 733 sc->sc_isoc_head = ohci_alloc_sed(sc); 734 if (sc->sc_isoc_head == NULL) { 735 err = USBD_NOMEM; 736 goto bad3; 737 } 738 sc->sc_isoc_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 739 740 /* Allocate all the dummy EDs that make up the interrupt tree. */ 741 for (i = 0; i < OHCI_NO_EDS; i++) { 742 sed = ohci_alloc_sed(sc); 743 if (sed == NULL) { 744 while (--i >= 0) 745 ohci_free_sed(sc, sc->sc_eds[i]); 746 err = USBD_NOMEM; 747 goto bad4; 748 } 749 /* All ED fields are set to 0. */ 750 sc->sc_eds[i] = sed; 751 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 752 if (i != 0) 753 psed = sc->sc_eds[(i-1) / 2]; 754 else 755 psed= sc->sc_isoc_head; 756 sed->next = psed; 757 sed->ed.ed_nexted = HTOO32(psed->physaddr); 758 } 759 /* 760 * Fill HCCA interrupt table. The bit reversal is to get 761 * the tree set up properly to spread the interrupts. 762 */ 763 for (i = 0; i < OHCI_NO_INTRS; i++) 764 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 765 HTOO32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 766 767 #ifdef OHCI_DEBUG 768 if (ohcidebug > 15) { 769 for (i = 0; i < OHCI_NO_EDS; i++) { 770 printf("ed#%d ", i); 771 ohci_dump_ed(sc, sc->sc_eds[i]); 772 } 773 printf("iso "); 774 ohci_dump_ed(sc, sc->sc_isoc_head); 775 } 776 #endif 777 778 /* Preserve values programmed by SMM/BIOS but lost over reset. */ 779 ctl = OREAD4(sc, OHCI_CONTROL); 780 rwc = ctl & OHCI_RWC; 781 fm = OREAD4(sc, OHCI_FM_INTERVAL); 782 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 783 descb = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 784 785 /* Determine in what context we are running. */ 786 if (ctl & OHCI_IR) { 787 /* SMM active, request change */ 788 DPRINTF(("ohci_init: SMM active, request owner change\n")); 789 if ((sc->sc_intre & (OHCI_OC | OHCI_MIE)) == 790 (OHCI_OC | OHCI_MIE)) 791 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_MIE); 792 s = OREAD4(sc, OHCI_COMMAND_STATUS); 793 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 794 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 795 usb_delay_ms(&sc->sc_bus, 1); 796 ctl = OREAD4(sc, OHCI_CONTROL); 797 } 798 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_MIE); 799 if ((ctl & OHCI_IR) == 0) { 800 printf("%s: SMM does not respond, resetting\n", 801 USBDEVNAME(sc->sc_bus.bdev)); 802 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 803 goto reset; 804 } 805 #if 0 806 /* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */ 807 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 808 /* BIOS started controller. */ 809 DPRINTF(("ohci_init: BIOS active\n")); 810 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 811 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL | rwc); 812 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 813 } 814 #endif 815 } else { 816 DPRINTF(("ohci_init: cold started\n")); 817 reset: 818 /* Controller was cold started. */ 819 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 820 } 821 822 /* 823 * This reset should not be necessary according to the OHCI spec, but 824 * without it some controllers do not start. 825 */ 826 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 827 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 828 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 829 830 /* We now own the host controller and the bus has been reset. */ 831 832 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 833 /* Nominal time for a reset is 10 us. */ 834 for (i = 0; i < 10; i++) { 835 delay(10); 836 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 837 if (!hcr) 838 break; 839 } 840 if (hcr) { 841 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 842 err = USBD_IOERROR; 843 goto bad5; 844 } 845 #ifdef OHCI_DEBUG 846 if (ohcidebug > 15) 847 ohci_dumpregs(sc); 848 #endif 849 850 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 851 852 /* Set up HC registers. */ 853 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 854 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 855 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 856 /* disable all interrupts and then switch on all desired interrupts */ 857 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 858 /* switch on desired functional features */ 859 ctl = OREAD4(sc, OHCI_CONTROL); 860 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 861 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 862 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL | rwc; 863 /* And finally start it! */ 864 OWRITE4(sc, OHCI_CONTROL, ctl); 865 866 /* 867 * The controller is now OPERATIONAL. Set a some final 868 * registers that should be set earlier, but that the 869 * controller ignores when in the SUSPEND state. 870 */ 871 ival = OHCI_GET_IVAL(fm); 872 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 873 fm |= OHCI_FSMPS(ival) | ival; 874 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 875 per = OHCI_PERIODIC(ival); /* 90% periodic */ 876 OWRITE4(sc, OHCI_PERIODIC_START, per); 877 878 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 879 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 880 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 881 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 882 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 883 884 /* 885 * The AMD756 requires a delay before re-reading the register, 886 * otherwise it will occasionally report 0 ports. 887 */ 888 sc->sc_noport = 0; 889 for (i = 0; i < 10 && sc->sc_noport == 0; i++) { 890 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 891 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 892 } 893 894 #ifdef OHCI_DEBUG 895 if (ohcidebug > 5) 896 ohci_dumpregs(sc); 897 #endif 898 899 /* Set up the bus struct. */ 900 sc->sc_bus.methods = &ohci_bus_methods; 901 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 902 903 #if defined(__NetBSD__) || defined(__OpenBSD__) 904 sc->sc_control = sc->sc_intre = 0; 905 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 906 #endif 907 908 usb_callout_init(sc->sc_tmo_rhsc); 909 910 /* Finally, turn on interrupts. */ 911 DPRINTFN(1,("ohci_init: enabling\n")); 912 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 913 914 return (USBD_NORMAL_COMPLETION); 915 916 bad5: 917 for (i = 0; i < OHCI_NO_EDS; i++) 918 ohci_free_sed(sc, sc->sc_eds[i]); 919 bad4: 920 ohci_free_sed(sc, sc->sc_isoc_head); 921 bad3: 922 ohci_free_sed(sc, sc->sc_bulk_head); 923 bad2: 924 ohci_free_sed(sc, sc->sc_ctrl_head); 925 bad1: 926 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 927 return (err); 928 } 929 930 usbd_status 931 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 932 { 933 #if defined(__NetBSD__) || defined(__OpenBSD__) 934 struct ohci_softc *sc = (struct ohci_softc *)bus; 935 #endif 936 usbd_status status; 937 938 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 939 #ifdef __NetBSD__ 940 if (status == USBD_NOMEM) 941 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 942 #endif 943 return status; 944 } 945 946 void 947 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 948 { 949 #if defined(__NetBSD__) || defined(__OpenBSD__) 950 struct ohci_softc *sc = (struct ohci_softc *)bus; 951 #endif 952 #ifdef __NetBSD__ 953 if (dma->block->flags & USB_DMA_RESERVE) { 954 usb_reserve_freem(&((struct ohci_softc *)bus)->sc_dma_reserve, 955 dma); 956 return; 957 } 958 #endif 959 usb_freemem(&sc->sc_bus, dma); 960 } 961 962 usbd_xfer_handle 963 ohci_allocx(struct usbd_bus *bus) 964 { 965 struct ohci_softc *sc = (struct ohci_softc *)bus; 966 usbd_xfer_handle xfer; 967 968 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 969 if (xfer != NULL) { 970 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 971 #ifdef DIAGNOSTIC 972 if (xfer->busy_free != XFER_FREE) { 973 printf("ohci_allocx: xfer=%p not free, 0x%08x\n", xfer, 974 xfer->busy_free); 975 } 976 #endif 977 } else { 978 xfer = malloc(sizeof(struct ohci_xfer), M_USB, M_NOWAIT); 979 } 980 if (xfer != NULL) { 981 memset(xfer, 0, sizeof (struct ohci_xfer)); 982 #ifdef DIAGNOSTIC 983 xfer->busy_free = XFER_BUSY; 984 #endif 985 } 986 return (xfer); 987 } 988 989 void 990 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 991 { 992 struct ohci_softc *sc = (struct ohci_softc *)bus; 993 994 #ifdef DIAGNOSTIC 995 if (xfer->busy_free != XFER_BUSY) { 996 printf("ohci_freex: xfer=%p not busy, 0x%08x\n", xfer, 997 xfer->busy_free); 998 } 999 xfer->busy_free = XFER_FREE; 1000 #endif 1001 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 1002 } 1003 1004 /* 1005 * Shut down the controller when the system is going down. 1006 */ 1007 void 1008 ohci_shutdown(void *v) 1009 { 1010 ohci_softc_t *sc = v; 1011 1012 DPRINTF(("ohci_shutdown: stopping the HC\n")); 1013 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1014 } 1015 1016 bool 1017 ohci_resume(device_t dv) 1018 { 1019 ohci_softc_t *sc = device_private(dv); 1020 uint32_t ctl; 1021 int s; 1022 1023 s = splhardusb(); 1024 sc->sc_bus.use_polling++; 1025 /* Some broken BIOSes do not recover these values */ 1026 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 1027 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, 1028 sc->sc_ctrl_head->physaddr); 1029 OWRITE4(sc, OHCI_BULK_HEAD_ED, 1030 sc->sc_bulk_head->physaddr); 1031 if (sc->sc_intre) 1032 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_intre & 1033 (OHCI_ALL_INTRS | OHCI_MIE)); 1034 if (sc->sc_control) 1035 ctl = sc->sc_control; 1036 else 1037 ctl = OREAD4(sc, OHCI_CONTROL); 1038 ctl |= OHCI_HCFS_RESUME; 1039 OWRITE4(sc, OHCI_CONTROL, ctl); 1040 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 1041 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL; 1042 OWRITE4(sc, OHCI_CONTROL, ctl); 1043 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 1044 sc->sc_control = sc->sc_intre = 0; 1045 sc->sc_bus.use_polling--; 1046 1047 return true; 1048 } 1049 1050 bool 1051 ohci_suspend(device_t dv) 1052 { 1053 ohci_softc_t *sc = device_private(dv); 1054 uint32_t ctl; 1055 int s; 1056 1057 s = splhardusb(); 1058 sc->sc_bus.use_polling++; 1059 ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK; 1060 if (sc->sc_control == 0) { 1061 /* 1062 * Preserve register values, in case that BIOS 1063 * does not recover them. 1064 */ 1065 sc->sc_control = ctl; 1066 sc->sc_intre = OREAD4(sc, 1067 OHCI_INTERRUPT_ENABLE); 1068 } 1069 ctl |= OHCI_HCFS_SUSPEND; 1070 OWRITE4(sc, OHCI_CONTROL, ctl); 1071 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 1072 sc->sc_bus.use_polling--; 1073 splx(s); 1074 1075 return true; 1076 } 1077 1078 #ifdef OHCI_DEBUG 1079 void 1080 ohci_dumpregs(ohci_softc_t *sc) 1081 { 1082 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 1083 OREAD4(sc, OHCI_REVISION), 1084 OREAD4(sc, OHCI_CONTROL), 1085 OREAD4(sc, OHCI_COMMAND_STATUS))); 1086 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 1087 OREAD4(sc, OHCI_INTERRUPT_STATUS), 1088 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 1089 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 1090 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 1091 OREAD4(sc, OHCI_HCCA), 1092 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 1093 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 1094 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 1095 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 1096 OREAD4(sc, OHCI_BULK_HEAD_ED), 1097 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1098 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1099 OREAD4(sc, OHCI_DONE_HEAD), 1100 OREAD4(sc, OHCI_FM_INTERVAL), 1101 OREAD4(sc, OHCI_FM_REMAINING))); 1102 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1103 OREAD4(sc, OHCI_FM_NUMBER), 1104 OREAD4(sc, OHCI_PERIODIC_START), 1105 OREAD4(sc, OHCI_LS_THRESHOLD))); 1106 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1107 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1108 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1109 OREAD4(sc, OHCI_RH_STATUS))); 1110 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1111 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1112 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1113 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1114 O32TOH(sc->sc_hcca->hcca_frame_number), 1115 O32TOH(sc->sc_hcca->hcca_done_head))); 1116 } 1117 #endif 1118 1119 Static int ohci_intr1(ohci_softc_t *); 1120 1121 int 1122 ohci_intr(void *p) 1123 { 1124 ohci_softc_t *sc = p; 1125 1126 if (sc == NULL || sc->sc_dying || !device_has_power(&sc->sc_bus.bdev)) 1127 return (0); 1128 1129 /* If we get an interrupt while polling, then just ignore it. */ 1130 if (sc->sc_bus.use_polling) { 1131 #ifdef DIAGNOSTIC 1132 DPRINTFN(16, ("ohci_intr: ignored interrupt while polling\n")); 1133 #endif 1134 /* for level triggered intrs, should do something to ack */ 1135 OWRITE4(sc, OHCI_INTERRUPT_STATUS, 1136 OREAD4(sc, OHCI_INTERRUPT_STATUS)); 1137 1138 return (0); 1139 } 1140 1141 return (ohci_intr1(sc)); 1142 } 1143 1144 Static int 1145 ohci_intr1(ohci_softc_t *sc) 1146 { 1147 u_int32_t intrs, eintrs; 1148 1149 DPRINTFN(14,("ohci_intr1: enter\n")); 1150 1151 /* In case the interrupt occurs before initialization has completed. */ 1152 if (sc == NULL || sc->sc_hcca == NULL) { 1153 #ifdef DIAGNOSTIC 1154 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1155 #endif 1156 return (0); 1157 } 1158 1159 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1160 if (!intrs) 1161 return (0); 1162 1163 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs & ~(OHCI_MIE|OHCI_WDH)); /* Acknowledge */ 1164 eintrs = intrs & sc->sc_eintrs; 1165 if (!eintrs) 1166 return (0); 1167 1168 sc->sc_bus.intr_context++; 1169 sc->sc_bus.no_intrs++; 1170 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1171 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1172 (u_int)eintrs)); 1173 1174 if (eintrs & OHCI_SO) { 1175 sc->sc_overrun_cnt++; 1176 if (usbd_ratecheck(&sc->sc_overrun_ntc)) { 1177 printf("%s: %u scheduling overruns\n", 1178 USBDEVNAME(sc->sc_bus.bdev), sc->sc_overrun_cnt); 1179 sc->sc_overrun_cnt = 0; 1180 } 1181 /* XXX do what */ 1182 eintrs &= ~OHCI_SO; 1183 } 1184 if (eintrs & OHCI_WDH) { 1185 /* 1186 * We block the interrupt below, and reenable it later from 1187 * ohci_softintr(). 1188 */ 1189 usb_schedsoftintr(&sc->sc_bus); 1190 } 1191 if (eintrs & OHCI_RD) { 1192 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1193 /* XXX process resume detect */ 1194 } 1195 if (eintrs & OHCI_UE) { 1196 printf("%s: unrecoverable error, controller halted\n", 1197 USBDEVNAME(sc->sc_bus.bdev)); 1198 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1199 /* XXX what else */ 1200 } 1201 if (eintrs & OHCI_RHSC) { 1202 /* 1203 * We block the interrupt below, and reenable it later from 1204 * a timeout. 1205 */ 1206 ohci_rhsc(sc, sc->sc_intrxfer); 1207 /* Do not allow RHSC interrupts > 1 per second */ 1208 usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc); 1209 } 1210 1211 sc->sc_bus.intr_context--; 1212 1213 if (eintrs != 0) { 1214 /* Block unprocessed interrupts. */ 1215 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, eintrs); 1216 sc->sc_eintrs &= ~eintrs; 1217 DPRINTFN(1, ("%s: blocking intrs 0x%x\n", 1218 USBDEVNAME(sc->sc_bus.bdev), eintrs)); 1219 } 1220 1221 return (1); 1222 } 1223 1224 void 1225 ohci_rhsc_enable(void *v_sc) 1226 { 1227 ohci_softc_t *sc = v_sc; 1228 int s; 1229 1230 s = splhardusb(); 1231 sc->sc_eintrs |= OHCI_RHSC; 1232 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1233 splx(s); 1234 } 1235 1236 #ifdef OHCI_DEBUG 1237 const char *ohci_cc_strs[] = { 1238 "NO_ERROR", 1239 "CRC", 1240 "BIT_STUFFING", 1241 "DATA_TOGGLE_MISMATCH", 1242 "STALL", 1243 "DEVICE_NOT_RESPONDING", 1244 "PID_CHECK_FAILURE", 1245 "UNEXPECTED_PID", 1246 "DATA_OVERRUN", 1247 "DATA_UNDERRUN", 1248 "BUFFER_OVERRUN", 1249 "BUFFER_UNDERRUN", 1250 "reserved", 1251 "reserved", 1252 "NOT_ACCESSED", 1253 "NOT_ACCESSED", 1254 }; 1255 #endif 1256 1257 void 1258 ohci_softintr(void *v) 1259 { 1260 ohci_softc_t *sc = v; 1261 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1262 ohci_soft_td_t *std, *sdone, *stdnext; 1263 usbd_xfer_handle xfer; 1264 struct ohci_pipe *opipe; 1265 int len, cc, s; 1266 int i, j, actlen, iframes, uedir; 1267 ohci_physaddr_t done; 1268 1269 DPRINTFN(10,("ohci_softintr: enter\n")); 1270 1271 sc->sc_bus.intr_context++; 1272 1273 s = splhardusb(); 1274 done = O32TOH(sc->sc_hcca->hcca_done_head) & ~OHCI_DONE_INTRS; 1275 sc->sc_hcca->hcca_done_head = 0; 1276 OWRITE4(sc, OHCI_INTERRUPT_STATUS, OHCI_WDH); 1277 sc->sc_eintrs |= OHCI_WDH; 1278 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_WDH); 1279 splx(s); 1280 1281 /* Reverse the done list. */ 1282 for (sdone = NULL, sidone = NULL; done != 0; ) { 1283 std = ohci_hash_find_td(sc, done); 1284 if (std != NULL) { 1285 std->dnext = sdone; 1286 done = O32TOH(std->td.td_nexttd); 1287 sdone = std; 1288 DPRINTFN(10,("add TD %p\n", std)); 1289 continue; 1290 } 1291 sitd = ohci_hash_find_itd(sc, done); 1292 if (sitd != NULL) { 1293 sitd->dnext = sidone; 1294 done = O32TOH(sitd->itd.itd_nextitd); 1295 sidone = sitd; 1296 DPRINTFN(5,("add ITD %p\n", sitd)); 1297 continue; 1298 } 1299 panic("ohci_softintr: addr 0x%08lx not found", (u_long)done); 1300 } 1301 1302 DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone)); 1303 1304 #ifdef OHCI_DEBUG 1305 if (ohcidebug > 10) { 1306 DPRINTF(("ohci_process_done: TD done:\n")); 1307 ohci_dump_tds(sc, sdone); 1308 } 1309 #endif 1310 1311 for (std = sdone; std; std = stdnext) { 1312 xfer = std->xfer; 1313 stdnext = std->dnext; 1314 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1315 std, xfer, xfer ? xfer->hcpriv : 0)); 1316 if (xfer == NULL) { 1317 /* 1318 * xfer == NULL: There seems to be no xfer associated 1319 * with this TD. It is tailp that happened to end up on 1320 * the done queue. 1321 * Shouldn't happen, but some chips are broken(?). 1322 */ 1323 continue; 1324 } 1325 if (xfer->status == USBD_CANCELLED || 1326 xfer->status == USBD_TIMEOUT) { 1327 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1328 xfer)); 1329 /* Handled by abort routine. */ 1330 continue; 1331 } 1332 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1333 1334 len = std->len; 1335 if (std->td.td_cbp != 0) 1336 len -= O32TOH(std->td.td_be) - 1337 O32TOH(std->td.td_cbp) + 1; 1338 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", len, 1339 std->flags)); 1340 if (std->flags & OHCI_ADD_LEN) 1341 xfer->actlen += len; 1342 1343 cc = OHCI_TD_GET_CC(O32TOH(std->td.td_flags)); 1344 if (cc == OHCI_CC_NO_ERROR) { 1345 if (std->flags & OHCI_CALL_DONE) { 1346 xfer->status = USBD_NORMAL_COMPLETION; 1347 s = splusb(); 1348 usb_transfer_complete(xfer); 1349 splx(s); 1350 } 1351 ohci_free_std(sc, std); 1352 } else { 1353 /* 1354 * Endpoint is halted. First unlink all the TDs 1355 * belonging to the failed transfer, and then restart 1356 * the endpoint. 1357 */ 1358 ohci_soft_td_t *p, *n; 1359 opipe = (struct ohci_pipe *)xfer->pipe; 1360 1361 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1362 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1363 ohci_cc_strs[OHCI_TD_GET_CC(O32TOH(std->td.td_flags))])); 1364 1365 /* remove TDs */ 1366 for (p = std; p->xfer == xfer; p = n) { 1367 n = p->nexttd; 1368 ohci_free_std(sc, p); 1369 } 1370 1371 /* clear halt */ 1372 opipe->sed->ed.ed_headp = HTOO32(p->physaddr); 1373 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1374 1375 if (cc == OHCI_CC_STALL) 1376 xfer->status = USBD_STALLED; 1377 else 1378 xfer->status = USBD_IOERROR; 1379 s = splusb(); 1380 usb_transfer_complete(xfer); 1381 splx(s); 1382 } 1383 } 1384 1385 #ifdef OHCI_DEBUG 1386 if (ohcidebug > 10) { 1387 DPRINTF(("ohci_softintr: ITD done:\n")); 1388 ohci_dump_itds(sc, sidone); 1389 } 1390 #endif 1391 1392 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1393 xfer = sitd->xfer; 1394 sitdnext = sitd->dnext; 1395 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1396 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1397 if (xfer == NULL) 1398 continue; 1399 if (xfer->status == USBD_CANCELLED || 1400 xfer->status == USBD_TIMEOUT) { 1401 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1402 xfer)); 1403 /* Handled by abort routine. */ 1404 continue; 1405 } 1406 #ifdef DIAGNOSTIC 1407 if (sitd->isdone) 1408 printf("ohci_softintr: sitd=%p is done\n", sitd); 1409 sitd->isdone = 1; 1410 #endif 1411 if (sitd->flags & OHCI_CALL_DONE) { 1412 ohci_soft_itd_t *next; 1413 1414 opipe = (struct ohci_pipe *)xfer->pipe; 1415 opipe->u.iso.inuse -= xfer->nframes; 1416 uedir = UE_GET_DIR(xfer->pipe->endpoint->edesc-> 1417 bEndpointAddress); 1418 xfer->status = USBD_NORMAL_COMPLETION; 1419 actlen = 0; 1420 for (i = 0, sitd = xfer->hcpriv;; 1421 sitd = next) { 1422 next = sitd->nextitd; 1423 if (OHCI_ITD_GET_CC(O32TOH(sitd-> 1424 itd.itd_flags)) != OHCI_CC_NO_ERROR) 1425 xfer->status = USBD_IOERROR; 1426 /* For input, update frlengths with actual */ 1427 /* XXX anything necessary for output? */ 1428 if (uedir == UE_DIR_IN && 1429 xfer->status == USBD_NORMAL_COMPLETION) { 1430 iframes = OHCI_ITD_GET_FC(O32TOH( 1431 sitd->itd.itd_flags)); 1432 for (j = 0; j < iframes; i++, j++) { 1433 len = O16TOH(sitd-> 1434 itd.itd_offset[j]); 1435 if ((OHCI_ITD_PSW_GET_CC(len) & 1436 OHCI_CC_NOT_ACCESSED_MASK) 1437 == OHCI_CC_NOT_ACCESSED) 1438 len = 0; 1439 else 1440 len = OHCI_ITD_PSW_LENGTH(len); 1441 xfer->frlengths[i] = len; 1442 actlen += len; 1443 } 1444 } 1445 if (sitd->flags & OHCI_CALL_DONE) 1446 break; 1447 ohci_free_sitd(sc, sitd); 1448 } 1449 ohci_free_sitd(sc, sitd); 1450 if (uedir == UE_DIR_IN && 1451 xfer->status == USBD_NORMAL_COMPLETION) 1452 xfer->actlen = actlen; 1453 xfer->hcpriv = NULL; 1454 1455 s = splusb(); 1456 usb_transfer_complete(xfer); 1457 splx(s); 1458 } 1459 } 1460 1461 #ifdef USB_USE_SOFTINTR 1462 if (sc->sc_softwake) { 1463 sc->sc_softwake = 0; 1464 wakeup(&sc->sc_softwake); 1465 } 1466 #endif /* USB_USE_SOFTINTR */ 1467 1468 sc->sc_bus.intr_context--; 1469 DPRINTFN(10,("ohci_softintr: done:\n")); 1470 } 1471 1472 void 1473 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1474 { 1475 DPRINTFN(10,("ohci_device_ctrl_done: xfer=%p\n", xfer)); 1476 1477 #ifdef DIAGNOSTIC 1478 if (!(xfer->rqflags & URQ_REQUEST)) { 1479 panic("ohci_device_ctrl_done: not a request"); 1480 } 1481 #endif 1482 } 1483 1484 void 1485 ohci_device_intr_done(usbd_xfer_handle xfer) 1486 { 1487 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1488 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1489 ohci_soft_ed_t *sed = opipe->sed; 1490 ohci_soft_td_t *data, *tail; 1491 1492 1493 DPRINTFN(10,("ohci_device_intr_done: xfer=%p, actlen=%d\n", 1494 xfer, xfer->actlen)); 1495 1496 if (xfer->pipe->repeat) { 1497 data = opipe->tail.td; 1498 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1499 if (tail == NULL) { 1500 xfer->status = USBD_NOMEM; 1501 return; 1502 } 1503 tail->xfer = NULL; 1504 1505 data->td.td_flags = HTOO32( 1506 OHCI_TD_IN | OHCI_TD_NOCC | 1507 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1508 if (xfer->flags & USBD_SHORT_XFER_OK) 1509 data->td.td_flags |= HTOO32(OHCI_TD_R); 1510 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 1511 data->nexttd = tail; 1512 data->td.td_nexttd = HTOO32(tail->physaddr); 1513 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + 1514 xfer->length - 1); 1515 data->len = xfer->length; 1516 data->xfer = xfer; 1517 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1518 xfer->hcpriv = data; 1519 xfer->actlen = 0; 1520 1521 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1522 opipe->tail.td = tail; 1523 } 1524 } 1525 1526 void 1527 ohci_device_bulk_done(usbd_xfer_handle xfer) 1528 { 1529 DPRINTFN(10,("ohci_device_bulk_done: xfer=%p, actlen=%d\n", 1530 xfer, xfer->actlen)); 1531 } 1532 1533 void 1534 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1535 { 1536 usbd_pipe_handle pipe; 1537 u_char *p; 1538 int i, m; 1539 int hstatus; 1540 1541 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1542 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1543 sc, xfer, hstatus)); 1544 1545 if (xfer == NULL) { 1546 /* Just ignore the change. */ 1547 return; 1548 } 1549 1550 pipe = xfer->pipe; 1551 1552 p = KERNADDR(&xfer->dmabuf, 0); 1553 m = min(sc->sc_noport, xfer->length * 8 - 1); 1554 memset(p, 0, xfer->length); 1555 for (i = 1; i <= m; i++) { 1556 /* Pick out CHANGE bits from the status reg. */ 1557 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1558 p[i/8] |= 1 << (i%8); 1559 } 1560 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1561 xfer->actlen = xfer->length; 1562 xfer->status = USBD_NORMAL_COMPLETION; 1563 1564 usb_transfer_complete(xfer); 1565 } 1566 1567 void 1568 ohci_root_intr_done(usbd_xfer_handle xfer) 1569 { 1570 } 1571 1572 void 1573 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1574 { 1575 } 1576 1577 /* 1578 * Wait here until controller claims to have an interrupt. 1579 * Then call ohci_intr and return. Use timeout to avoid waiting 1580 * too long. 1581 */ 1582 void 1583 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1584 { 1585 int timo; 1586 u_int32_t intrs; 1587 1588 xfer->status = USBD_IN_PROGRESS; 1589 for (timo = xfer->timeout; timo >= 0; timo--) { 1590 usb_delay_ms(&sc->sc_bus, 1); 1591 if (sc->sc_dying) 1592 break; 1593 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1594 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1595 #ifdef OHCI_DEBUG 1596 if (ohcidebug > 15) 1597 ohci_dumpregs(sc); 1598 #endif 1599 if (intrs) { 1600 ohci_intr1(sc); 1601 if (xfer->status != USBD_IN_PROGRESS) 1602 return; 1603 } 1604 } 1605 1606 /* Timeout */ 1607 DPRINTF(("ohci_waitintr: timeout\n")); 1608 xfer->status = USBD_TIMEOUT; 1609 usb_transfer_complete(xfer); 1610 /* XXX should free TD */ 1611 } 1612 1613 void 1614 ohci_poll(struct usbd_bus *bus) 1615 { 1616 ohci_softc_t *sc = (ohci_softc_t *)bus; 1617 #ifdef OHCI_DEBUG 1618 static int last; 1619 int new; 1620 new = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1621 if (new != last) { 1622 DPRINTFN(10,("ohci_poll: intrs=0x%04x\n", new)); 1623 last = new; 1624 } 1625 #endif 1626 1627 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1628 ohci_intr1(sc); 1629 } 1630 1631 usbd_status 1632 ohci_device_request(usbd_xfer_handle xfer) 1633 { 1634 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1635 usb_device_request_t *req = &xfer->request; 1636 usbd_device_handle dev = opipe->pipe.device; 1637 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1638 int addr = dev->address; 1639 ohci_soft_td_t *setup, *stat, *next, *tail; 1640 ohci_soft_ed_t *sed; 1641 int isread; 1642 int len; 1643 usbd_status err; 1644 int s; 1645 1646 isread = req->bmRequestType & UT_READ; 1647 len = UGETW(req->wLength); 1648 1649 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1650 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1651 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1652 UGETW(req->wIndex), len, addr, 1653 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1654 1655 setup = opipe->tail.td; 1656 stat = ohci_alloc_std(sc); 1657 if (stat == NULL) { 1658 err = USBD_NOMEM; 1659 goto bad1; 1660 } 1661 tail = ohci_alloc_std(sc); 1662 if (tail == NULL) { 1663 err = USBD_NOMEM; 1664 goto bad2; 1665 } 1666 tail->xfer = NULL; 1667 1668 sed = opipe->sed; 1669 opipe->u.ctl.length = len; 1670 1671 /* Update device address and length since they may have changed 1672 during the setup of the control pipe in usbd_new_device(). */ 1673 /* XXX This only needs to be done once, but it's too early in open. */ 1674 /* XXXX Should not touch ED here! */ 1675 sed->ed.ed_flags = HTOO32( 1676 (O32TOH(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1677 OHCI_ED_SET_FA(addr) | 1678 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1679 1680 next = stat; 1681 1682 /* Set up data transaction */ 1683 if (len != 0) { 1684 ohci_soft_td_t *std = stat; 1685 1686 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1687 std, &stat); 1688 stat = stat->nexttd; /* point at free TD */ 1689 if (err) 1690 goto bad3; 1691 /* Start toggle at 1 and then use the carried toggle. */ 1692 std->td.td_flags &= HTOO32(~OHCI_TD_TOGGLE_MASK); 1693 std->td.td_flags |= HTOO32(OHCI_TD_TOGGLE_1); 1694 } 1695 1696 memcpy(KERNADDR(&opipe->u.ctl.reqdma, 0), req, sizeof *req); 1697 1698 setup->td.td_flags = HTOO32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1699 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1700 setup->td.td_cbp = HTOO32(DMAADDR(&opipe->u.ctl.reqdma, 0)); 1701 setup->nexttd = next; 1702 setup->td.td_nexttd = HTOO32(next->physaddr); 1703 setup->td.td_be = HTOO32(O32TOH(setup->td.td_cbp) + sizeof *req - 1); 1704 setup->len = 0; 1705 setup->xfer = xfer; 1706 setup->flags = 0; 1707 xfer->hcpriv = setup; 1708 1709 stat->td.td_flags = HTOO32( 1710 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1711 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1712 stat->td.td_cbp = 0; 1713 stat->nexttd = tail; 1714 stat->td.td_nexttd = HTOO32(tail->physaddr); 1715 stat->td.td_be = 0; 1716 stat->flags = OHCI_CALL_DONE; 1717 stat->len = 0; 1718 stat->xfer = xfer; 1719 1720 #ifdef OHCI_DEBUG 1721 if (ohcidebug > 5) { 1722 DPRINTF(("ohci_device_request:\n")); 1723 ohci_dump_ed(sc, sed); 1724 ohci_dump_tds(sc, setup); 1725 } 1726 #endif 1727 1728 /* Insert ED in schedule */ 1729 s = splusb(); 1730 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1731 opipe->tail.td = tail; 1732 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1733 if (xfer->timeout && !sc->sc_bus.use_polling) { 1734 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1735 ohci_timeout, xfer); 1736 } 1737 splx(s); 1738 1739 #ifdef OHCI_DEBUG 1740 if (ohcidebug > 20) { 1741 delay(10000); 1742 DPRINTF(("ohci_device_request: status=%x\n", 1743 OREAD4(sc, OHCI_COMMAND_STATUS))); 1744 ohci_dumpregs(sc); 1745 printf("ctrl head:\n"); 1746 ohci_dump_ed(sc, sc->sc_ctrl_head); 1747 printf("sed:\n"); 1748 ohci_dump_ed(sc, sed); 1749 ohci_dump_tds(sc, setup); 1750 } 1751 #endif 1752 1753 return (USBD_NORMAL_COMPLETION); 1754 1755 bad3: 1756 ohci_free_std(sc, tail); 1757 bad2: 1758 ohci_free_std(sc, stat); 1759 bad1: 1760 return (err); 1761 } 1762 1763 /* 1764 * Add an ED to the schedule. Called at splusb(). 1765 */ 1766 void 1767 ohci_add_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1768 { 1769 DPRINTFN(8,("ohci_add_ed: sed=%p head=%p\n", sed, head)); 1770 1771 SPLUSBCHECK; 1772 sed->next = head->next; 1773 sed->ed.ed_nexted = head->ed.ed_nexted; 1774 head->next = sed; 1775 head->ed.ed_nexted = HTOO32(sed->physaddr); 1776 } 1777 1778 /* 1779 * Remove an ED from the schedule. Called at splusb(). 1780 */ 1781 void 1782 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1783 { 1784 ohci_soft_ed_t *p; 1785 1786 SPLUSBCHECK; 1787 1788 /* XXX */ 1789 for (p = head; p != NULL && p->next != sed; p = p->next) 1790 ; 1791 if (p == NULL) 1792 panic("ohci_rem_ed: ED not found"); 1793 p->next = sed->next; 1794 p->ed.ed_nexted = sed->ed.ed_nexted; 1795 } 1796 1797 /* 1798 * When a transfer is completed the TD is added to the done queue by 1799 * the host controller. This queue is the processed by software. 1800 * Unfortunately the queue contains the physical address of the TD 1801 * and we have no simple way to translate this back to a kernel address. 1802 * To make the translation possible (and fast) we use a hash table of 1803 * TDs currently in the schedule. The physical address is used as the 1804 * hash value. 1805 */ 1806 1807 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1808 /* Called at splusb() */ 1809 void 1810 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1811 { 1812 int h = HASH(std->physaddr); 1813 1814 SPLUSBCHECK; 1815 1816 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1817 } 1818 1819 /* Called at splusb() */ 1820 void 1821 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1822 { 1823 SPLUSBCHECK; 1824 1825 LIST_REMOVE(std, hnext); 1826 } 1827 1828 ohci_soft_td_t * 1829 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1830 { 1831 int h = HASH(a); 1832 ohci_soft_td_t *std; 1833 1834 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1835 std != NULL; 1836 std = LIST_NEXT(std, hnext)) 1837 if (std->physaddr == a) 1838 return (std); 1839 return (NULL); 1840 } 1841 1842 /* Called at splusb() */ 1843 void 1844 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1845 { 1846 int h = HASH(sitd->physaddr); 1847 1848 SPLUSBCHECK; 1849 1850 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1851 sitd, (u_long)sitd->physaddr)); 1852 1853 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1854 } 1855 1856 /* Called at splusb() */ 1857 void 1858 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1859 { 1860 SPLUSBCHECK; 1861 1862 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1863 sitd, (u_long)sitd->physaddr)); 1864 1865 LIST_REMOVE(sitd, hnext); 1866 } 1867 1868 ohci_soft_itd_t * 1869 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1870 { 1871 int h = HASH(a); 1872 ohci_soft_itd_t *sitd; 1873 1874 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1875 sitd != NULL; 1876 sitd = LIST_NEXT(sitd, hnext)) 1877 if (sitd->physaddr == a) 1878 return (sitd); 1879 return (NULL); 1880 } 1881 1882 void 1883 ohci_timeout(void *addr) 1884 { 1885 struct ohci_xfer *oxfer = addr; 1886 struct ohci_pipe *opipe = (struct ohci_pipe *)oxfer->xfer.pipe; 1887 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1888 1889 DPRINTF(("ohci_timeout: oxfer=%p\n", oxfer)); 1890 1891 if (sc->sc_dying) { 1892 ohci_abort_xfer(&oxfer->xfer, USBD_TIMEOUT); 1893 return; 1894 } 1895 1896 /* Execute the abort in a process context. */ 1897 usb_init_task(&oxfer->abort_task, ohci_timeout_task, addr); 1898 usb_add_task(oxfer->xfer.pipe->device, &oxfer->abort_task, 1899 USB_TASKQ_HC); 1900 } 1901 1902 void 1903 ohci_timeout_task(void *addr) 1904 { 1905 usbd_xfer_handle xfer = addr; 1906 int s; 1907 1908 DPRINTF(("ohci_timeout_task: xfer=%p\n", xfer)); 1909 1910 s = splusb(); 1911 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1912 splx(s); 1913 } 1914 1915 #ifdef OHCI_DEBUG 1916 void 1917 ohci_dump_tds(ohci_softc_t *sc, ohci_soft_td_t *std) 1918 { 1919 for (; std; std = std->nexttd) 1920 ohci_dump_td(sc, std); 1921 } 1922 1923 void 1924 ohci_dump_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1925 { 1926 char sbuf[128]; 1927 1928 bitmask_snprintf((u_int32_t)O32TOH(std->td.td_flags), 1929 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1930 sbuf, sizeof(sbuf)); 1931 1932 printf("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1933 "nexttd=0x%08lx be=0x%08lx\n", 1934 std, (u_long)std->physaddr, sbuf, 1935 OHCI_TD_GET_DI(O32TOH(std->td.td_flags)), 1936 OHCI_TD_GET_EC(O32TOH(std->td.td_flags)), 1937 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1938 (u_long)O32TOH(std->td.td_cbp), 1939 (u_long)O32TOH(std->td.td_nexttd), 1940 (u_long)O32TOH(std->td.td_be)); 1941 } 1942 1943 void 1944 ohci_dump_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1945 { 1946 int i; 1947 1948 printf("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1949 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1950 sitd, (u_long)sitd->physaddr, 1951 OHCI_ITD_GET_SF(O32TOH(sitd->itd.itd_flags)), 1952 OHCI_ITD_GET_DI(O32TOH(sitd->itd.itd_flags)), 1953 OHCI_ITD_GET_FC(O32TOH(sitd->itd.itd_flags)), 1954 OHCI_ITD_GET_CC(O32TOH(sitd->itd.itd_flags)), 1955 (u_long)O32TOH(sitd->itd.itd_bp0), 1956 (u_long)O32TOH(sitd->itd.itd_nextitd), 1957 (u_long)O32TOH(sitd->itd.itd_be)); 1958 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1959 printf("offs[%d]=0x%04x ", i, 1960 (u_int)O16TOH(sitd->itd.itd_offset[i])); 1961 printf("\n"); 1962 } 1963 1964 void 1965 ohci_dump_itds(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1966 { 1967 for (; sitd; sitd = sitd->nextitd) 1968 ohci_dump_itd(sc, sitd); 1969 } 1970 1971 void 1972 ohci_dump_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 1973 { 1974 char sbuf[128], sbuf2[128]; 1975 1976 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_flags), 1977 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1978 sbuf, sizeof(sbuf)); 1979 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_headp), 1980 "\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2)); 1981 1982 printf("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d flags=%s\ntailp=0x%08lx " 1983 "headflags=%s headp=0x%08lx nexted=0x%08lx\n", 1984 sed, (u_long)sed->physaddr, 1985 OHCI_ED_GET_FA(O32TOH(sed->ed.ed_flags)), 1986 OHCI_ED_GET_EN(O32TOH(sed->ed.ed_flags)), 1987 OHCI_ED_GET_MAXP(O32TOH(sed->ed.ed_flags)), sbuf, 1988 (u_long)O32TOH(sed->ed.ed_tailp), sbuf2, 1989 (u_long)O32TOH(sed->ed.ed_headp), 1990 (u_long)O32TOH(sed->ed.ed_nexted)); 1991 } 1992 #endif 1993 1994 usbd_status 1995 ohci_open(usbd_pipe_handle pipe) 1996 { 1997 usbd_device_handle dev = pipe->device; 1998 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1999 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2000 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2001 u_int8_t addr = dev->address; 2002 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 2003 ohci_soft_ed_t *sed; 2004 ohci_soft_td_t *std; 2005 ohci_soft_itd_t *sitd; 2006 ohci_physaddr_t tdphys; 2007 u_int32_t fmt; 2008 usbd_status err; 2009 int s; 2010 int ival; 2011 2012 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2013 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 2014 2015 if (sc->sc_dying) 2016 return (USBD_IOERROR); 2017 2018 std = NULL; 2019 sed = NULL; 2020 2021 if (addr == sc->sc_addr) { 2022 switch (ed->bEndpointAddress) { 2023 case USB_CONTROL_ENDPOINT: 2024 pipe->methods = &ohci_root_ctrl_methods; 2025 break; 2026 case UE_DIR_IN | OHCI_INTR_ENDPT: 2027 pipe->methods = &ohci_root_intr_methods; 2028 break; 2029 default: 2030 return (USBD_INVAL); 2031 } 2032 } else { 2033 sed = ohci_alloc_sed(sc); 2034 if (sed == NULL) 2035 goto bad0; 2036 opipe->sed = sed; 2037 if (xfertype == UE_ISOCHRONOUS) { 2038 sitd = ohci_alloc_sitd(sc); 2039 if (sitd == NULL) 2040 goto bad1; 2041 opipe->tail.itd = sitd; 2042 tdphys = sitd->physaddr; 2043 fmt = OHCI_ED_FORMAT_ISO; 2044 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 2045 fmt |= OHCI_ED_DIR_IN; 2046 else 2047 fmt |= OHCI_ED_DIR_OUT; 2048 } else { 2049 std = ohci_alloc_std(sc); 2050 if (std == NULL) 2051 goto bad1; 2052 opipe->tail.td = std; 2053 tdphys = std->physaddr; 2054 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 2055 } 2056 sed->ed.ed_flags = HTOO32( 2057 OHCI_ED_SET_FA(addr) | 2058 OHCI_ED_SET_EN(UE_GET_ADDR(ed->bEndpointAddress)) | 2059 (dev->speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) | 2060 fmt | 2061 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 2062 sed->ed.ed_headp = sed->ed.ed_tailp = HTOO32(tdphys); 2063 2064 switch (xfertype) { 2065 case UE_CONTROL: 2066 pipe->methods = &ohci_device_ctrl_methods; 2067 err = usb_allocmem(&sc->sc_bus, 2068 sizeof(usb_device_request_t), 2069 0, &opipe->u.ctl.reqdma); 2070 if (err) 2071 goto bad; 2072 s = splusb(); 2073 ohci_add_ed(sc, sed, sc->sc_ctrl_head); 2074 splx(s); 2075 break; 2076 case UE_INTERRUPT: 2077 pipe->methods = &ohci_device_intr_methods; 2078 ival = pipe->interval; 2079 if (ival == USBD_DEFAULT_INTERVAL) 2080 ival = ed->bInterval; 2081 return (ohci_device_setintr(sc, opipe, ival)); 2082 case UE_ISOCHRONOUS: 2083 pipe->methods = &ohci_device_isoc_methods; 2084 return (ohci_setup_isoc(pipe)); 2085 case UE_BULK: 2086 pipe->methods = &ohci_device_bulk_methods; 2087 s = splusb(); 2088 ohci_add_ed(sc, sed, sc->sc_bulk_head); 2089 splx(s); 2090 break; 2091 } 2092 } 2093 return (USBD_NORMAL_COMPLETION); 2094 2095 bad: 2096 if (std != NULL) 2097 ohci_free_std(sc, std); 2098 bad1: 2099 if (sed != NULL) 2100 ohci_free_sed(sc, sed); 2101 bad0: 2102 return (USBD_NOMEM); 2103 2104 } 2105 2106 /* 2107 * Close a reqular pipe. 2108 * Assumes that there are no pending transactions. 2109 */ 2110 void 2111 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 2112 { 2113 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2114 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2115 ohci_soft_ed_t *sed = opipe->sed; 2116 int s; 2117 2118 s = splusb(); 2119 #ifdef DIAGNOSTIC 2120 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 2121 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2122 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) { 2123 ohci_soft_td_t *std; 2124 std = ohci_hash_find_td(sc, O32TOH(sed->ed.ed_headp)); 2125 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 2126 "tl=0x%x pipe=%p, std=%p\n", sed, 2127 (int)O32TOH(sed->ed.ed_headp), 2128 (int)O32TOH(sed->ed.ed_tailp), 2129 pipe, std); 2130 #ifdef USB_DEBUG 2131 usbd_dump_pipe(&opipe->pipe); 2132 #endif 2133 #ifdef OHCI_DEBUG 2134 ohci_dump_ed(sc, sed); 2135 if (std) 2136 ohci_dump_td(sc, std); 2137 #endif 2138 usb_delay_ms(&sc->sc_bus, 2); 2139 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2140 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 2141 printf("ohci_close_pipe: pipe still not empty\n"); 2142 } 2143 #endif 2144 ohci_rem_ed(sed, head); 2145 /* Make sure the host controller is not touching this ED */ 2146 usb_delay_ms(&sc->sc_bus, 1); 2147 splx(s); 2148 ohci_free_sed(sc, opipe->sed); 2149 } 2150 2151 /* 2152 * Abort a device request. 2153 * If this routine is called at splusb() it guarantees that the request 2154 * will be removed from the hardware scheduling and that the callback 2155 * for it will be called with USBD_CANCELLED status. 2156 * It's impossible to guarantee that the requested transfer will not 2157 * have happened since the hardware runs concurrently. 2158 * If the transaction has already happened we rely on the ordinary 2159 * interrupt processing to process it. 2160 */ 2161 void 2162 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2163 { 2164 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2165 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2166 ohci_soft_ed_t *sed = opipe->sed; 2167 ohci_soft_td_t *p, *n; 2168 ohci_physaddr_t headp; 2169 int s, hit; 2170 int wake; 2171 2172 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p sed=%p\n", xfer, opipe,sed)); 2173 2174 if (sc->sc_dying) { 2175 /* If we're dying, just do the software part. */ 2176 s = splusb(); 2177 xfer->status = status; /* make software ignore it */ 2178 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2179 usb_transfer_complete(xfer); 2180 splx(s); 2181 return; 2182 } 2183 2184 if (xfer->device->bus->intr_context || !curproc) 2185 panic("ohci_abort_xfer: not in process context"); 2186 2187 /* 2188 * If an abort is already in progress then just wait for it to 2189 * complete and return. 2190 */ 2191 if (xfer->hcflags & UXFER_ABORTING) { 2192 DPRINTFN(2, ("ohci_abort_xfer: already aborting\n")); 2193 #ifdef DIAGNOSTIC 2194 if (status == USBD_TIMEOUT) 2195 printf("0hci_abort_xfer: TIMEOUT while aborting\n"); 2196 #endif 2197 /* Override the status which might be USBD_TIMEOUT. */ 2198 xfer->status = status; 2199 DPRINTFN(2, ("ohci_abort_xfer: waiting for abort to finish\n")); 2200 xfer->hcflags |= UXFER_ABORTWAIT; 2201 while (xfer->hcflags & UXFER_ABORTING) 2202 tsleep(&xfer->hcflags, PZERO, "ohciaw", 0); 2203 return; 2204 } 2205 xfer->hcflags |= UXFER_ABORTING; 2206 2207 /* 2208 * Step 1: Make interrupt routine and hardware ignore xfer. 2209 */ 2210 s = splusb(); 2211 xfer->status = status; /* make software ignore it */ 2212 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2213 splx(s); 2214 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2215 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 2216 2217 /* 2218 * Step 2: Wait until we know hardware has finished any possible 2219 * use of the xfer. Also make sure the soft interrupt routine 2220 * has run. 2221 */ 2222 usb_delay_ms(opipe->pipe.device->bus, 20); /* Hardware finishes in 1ms */ 2223 s = splusb(); 2224 #ifdef USB_USE_SOFTINTR 2225 sc->sc_softwake = 1; 2226 #endif /* USB_USE_SOFTINTR */ 2227 usb_schedsoftintr(&sc->sc_bus); 2228 #ifdef USB_USE_SOFTINTR 2229 tsleep(&sc->sc_softwake, PZERO, "ohciab", 0); 2230 #endif /* USB_USE_SOFTINTR */ 2231 splx(s); 2232 2233 /* 2234 * Step 3: Remove any vestiges of the xfer from the hardware. 2235 * The complication here is that the hardware may have executed 2236 * beyond the xfer we're trying to abort. So as we're scanning 2237 * the TDs of this xfer we check if the hardware points to 2238 * any of them. 2239 */ 2240 s = splusb(); /* XXX why? */ 2241 p = xfer->hcpriv; 2242 #ifdef DIAGNOSTIC 2243 if (p == NULL) { 2244 xfer->hcflags &= ~UXFER_ABORTING; /* XXX */ 2245 splx(s); 2246 printf("ohci_abort_xfer: hcpriv is NULL\n"); 2247 return; 2248 } 2249 #endif 2250 #ifdef OHCI_DEBUG 2251 if (ohcidebug > 1) { 2252 DPRINTF(("ohci_abort_xfer: sed=\n")); 2253 ohci_dump_ed(sc, sed); 2254 ohci_dump_tds(sc, p); 2255 } 2256 #endif 2257 headp = O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK; 2258 hit = 0; 2259 for (; p->xfer == xfer; p = n) { 2260 hit |= headp == p->physaddr; 2261 n = p->nexttd; 2262 ohci_free_std(sc, p); 2263 } 2264 /* Zap headp register if hardware pointed inside the xfer. */ 2265 if (hit) { 2266 DPRINTFN(1,("ohci_abort_xfer: set hd=0x%08x, tl=0x%08x\n", 2267 (int)p->physaddr, (int)O32TOH(sed->ed.ed_tailp))); 2268 sed->ed.ed_headp = HTOO32(p->physaddr); /* unlink TDs */ 2269 } else { 2270 DPRINTFN(1,("ohci_abort_xfer: no hit\n")); 2271 } 2272 2273 /* 2274 * Step 4: Turn on hardware again. 2275 */ 2276 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 2277 2278 /* 2279 * Step 5: Execute callback. 2280 */ 2281 wake = xfer->hcflags & UXFER_ABORTWAIT; 2282 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2283 usb_transfer_complete(xfer); 2284 if (wake) 2285 wakeup(&xfer->hcflags); 2286 2287 splx(s); 2288 } 2289 2290 /* 2291 * Data structures and routines to emulate the root hub. 2292 */ 2293 Static usb_device_descriptor_t ohci_devd = { 2294 USB_DEVICE_DESCRIPTOR_SIZE, 2295 UDESC_DEVICE, /* type */ 2296 {0x00, 0x01}, /* USB version */ 2297 UDCLASS_HUB, /* class */ 2298 UDSUBCLASS_HUB, /* subclass */ 2299 UDPROTO_FSHUB, 2300 64, /* max packet */ 2301 {0},{0},{0x00,0x01}, /* device id */ 2302 1,2,0, /* string indicies */ 2303 1 /* # of configurations */ 2304 }; 2305 2306 Static const usb_config_descriptor_t ohci_confd = { 2307 USB_CONFIG_DESCRIPTOR_SIZE, 2308 UDESC_CONFIG, 2309 {USB_CONFIG_DESCRIPTOR_SIZE + 2310 USB_INTERFACE_DESCRIPTOR_SIZE + 2311 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2312 1, 2313 1, 2314 0, 2315 UC_ATTR_MBO | UC_SELF_POWERED, 2316 0 /* max power */ 2317 }; 2318 2319 Static const usb_interface_descriptor_t ohci_ifcd = { 2320 USB_INTERFACE_DESCRIPTOR_SIZE, 2321 UDESC_INTERFACE, 2322 0, 2323 0, 2324 1, 2325 UICLASS_HUB, 2326 UISUBCLASS_HUB, 2327 UIPROTO_FSHUB, 2328 0 2329 }; 2330 2331 Static const usb_endpoint_descriptor_t ohci_endpd = { 2332 .bLength = USB_ENDPOINT_DESCRIPTOR_SIZE, 2333 .bDescriptorType = UDESC_ENDPOINT, 2334 .bEndpointAddress = UE_DIR_IN | OHCI_INTR_ENDPT, 2335 .bmAttributes = UE_INTERRUPT, 2336 .wMaxPacketSize = {8, 0}, /* max packet */ 2337 .bInterval = 255, 2338 }; 2339 2340 Static const usb_hub_descriptor_t ohci_hubd = { 2341 .bDescLength = USB_HUB_DESCRIPTOR_SIZE, 2342 .bDescriptorType = UDESC_HUB, 2343 }; 2344 2345 Static int 2346 ohci_str(usb_string_descriptor_t *p, int l, const char *s) 2347 { 2348 int i; 2349 2350 if (l == 0) 2351 return (0); 2352 p->bLength = 2 * strlen(s) + 2; 2353 if (l == 1) 2354 return (1); 2355 p->bDescriptorType = UDESC_STRING; 2356 l -= 2; 2357 for (i = 0; s[i] && l > 1; i++, l -= 2) 2358 USETW2(p->bString[i], 0, s[i]); 2359 return (2*i+2); 2360 } 2361 2362 /* 2363 * Simulate a hardware hub by handling all the necessary requests. 2364 */ 2365 Static usbd_status 2366 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2367 { 2368 usbd_status err; 2369 2370 /* Insert last in queue. */ 2371 err = usb_insert_transfer(xfer); 2372 if (err) 2373 return (err); 2374 2375 /* Pipe isn't running, start first */ 2376 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2377 } 2378 2379 Static usbd_status 2380 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2381 { 2382 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2383 usb_device_request_t *req; 2384 void *buf = NULL; 2385 int port, i; 2386 int s, len, value, index, l, totlen = 0; 2387 usb_port_status_t ps; 2388 usb_hub_descriptor_t hubd; 2389 usbd_status err; 2390 u_int32_t v; 2391 2392 if (sc->sc_dying) 2393 return (USBD_IOERROR); 2394 2395 #ifdef DIAGNOSTIC 2396 if (!(xfer->rqflags & URQ_REQUEST)) 2397 /* XXX panic */ 2398 return (USBD_INVAL); 2399 #endif 2400 req = &xfer->request; 2401 2402 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2403 req->bmRequestType, req->bRequest)); 2404 2405 len = UGETW(req->wLength); 2406 value = UGETW(req->wValue); 2407 index = UGETW(req->wIndex); 2408 2409 if (len != 0) 2410 buf = KERNADDR(&xfer->dmabuf, 0); 2411 2412 #define C(x,y) ((x) | ((y) << 8)) 2413 switch(C(req->bRequest, req->bmRequestType)) { 2414 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2415 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2416 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2417 /* 2418 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2419 * for the integrated root hub. 2420 */ 2421 break; 2422 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2423 if (len > 0) { 2424 *(u_int8_t *)buf = sc->sc_conf; 2425 totlen = 1; 2426 } 2427 break; 2428 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2429 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2430 if (len == 0) 2431 break; 2432 switch(value >> 8) { 2433 case UDESC_DEVICE: 2434 if ((value & 0xff) != 0) { 2435 err = USBD_IOERROR; 2436 goto ret; 2437 } 2438 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2439 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2440 memcpy(buf, &ohci_devd, l); 2441 break; 2442 case UDESC_CONFIG: 2443 if ((value & 0xff) != 0) { 2444 err = USBD_IOERROR; 2445 goto ret; 2446 } 2447 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2448 memcpy(buf, &ohci_confd, l); 2449 buf = (char *)buf + l; 2450 len -= l; 2451 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2452 totlen += l; 2453 memcpy(buf, &ohci_ifcd, l); 2454 buf = (char *)buf + l; 2455 len -= l; 2456 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2457 totlen += l; 2458 memcpy(buf, &ohci_endpd, l); 2459 break; 2460 case UDESC_STRING: 2461 *(u_int8_t *)buf = 0; 2462 totlen = 1; 2463 switch (value & 0xff) { 2464 case 0: /* Language table */ 2465 if (len > 0) 2466 *(u_int8_t *)buf = 4; 2467 if (len >= 4) { 2468 USETW(((usb_string_descriptor_t *)buf)->bString[0], 0x0409); 2469 totlen = 4; 2470 } 2471 break; 2472 case 1: /* Vendor */ 2473 totlen = ohci_str(buf, len, sc->sc_vendor); 2474 break; 2475 case 2: /* Product */ 2476 totlen = ohci_str(buf, len, "OHCI root hub"); 2477 break; 2478 } 2479 break; 2480 default: 2481 err = USBD_IOERROR; 2482 goto ret; 2483 } 2484 break; 2485 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2486 if (len > 0) { 2487 *(u_int8_t *)buf = 0; 2488 totlen = 1; 2489 } 2490 break; 2491 case C(UR_GET_STATUS, UT_READ_DEVICE): 2492 if (len > 1) { 2493 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2494 totlen = 2; 2495 } 2496 break; 2497 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2498 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2499 if (len > 1) { 2500 USETW(((usb_status_t *)buf)->wStatus, 0); 2501 totlen = 2; 2502 } 2503 break; 2504 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2505 if (value >= USB_MAX_DEVICES) { 2506 err = USBD_IOERROR; 2507 goto ret; 2508 } 2509 sc->sc_addr = value; 2510 break; 2511 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2512 if (value != 0 && value != 1) { 2513 err = USBD_IOERROR; 2514 goto ret; 2515 } 2516 sc->sc_conf = value; 2517 break; 2518 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2519 break; 2520 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2521 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2522 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2523 err = USBD_IOERROR; 2524 goto ret; 2525 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2526 break; 2527 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2528 break; 2529 /* Hub requests */ 2530 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2531 break; 2532 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2533 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2534 "port=%d feature=%d\n", 2535 index, value)); 2536 if (index < 1 || index > sc->sc_noport) { 2537 err = USBD_IOERROR; 2538 goto ret; 2539 } 2540 port = OHCI_RH_PORT_STATUS(index); 2541 switch(value) { 2542 case UHF_PORT_ENABLE: 2543 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2544 break; 2545 case UHF_PORT_SUSPEND: 2546 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2547 break; 2548 case UHF_PORT_POWER: 2549 /* Yes, writing to the LOW_SPEED bit clears power. */ 2550 OWRITE4(sc, port, UPS_LOW_SPEED); 2551 break; 2552 case UHF_C_PORT_CONNECTION: 2553 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2554 break; 2555 case UHF_C_PORT_ENABLE: 2556 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2557 break; 2558 case UHF_C_PORT_SUSPEND: 2559 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2560 break; 2561 case UHF_C_PORT_OVER_CURRENT: 2562 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2563 break; 2564 case UHF_C_PORT_RESET: 2565 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2566 break; 2567 default: 2568 err = USBD_IOERROR; 2569 goto ret; 2570 } 2571 switch(value) { 2572 case UHF_C_PORT_CONNECTION: 2573 case UHF_C_PORT_ENABLE: 2574 case UHF_C_PORT_SUSPEND: 2575 case UHF_C_PORT_OVER_CURRENT: 2576 case UHF_C_PORT_RESET: 2577 /* Enable RHSC interrupt if condition is cleared. */ 2578 if ((OREAD4(sc, port) >> 16) == 0) 2579 ohci_rhsc_enable(sc); 2580 break; 2581 default: 2582 break; 2583 } 2584 break; 2585 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2586 if (len == 0) 2587 break; 2588 if ((value & 0xff) != 0) { 2589 err = USBD_IOERROR; 2590 goto ret; 2591 } 2592 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2593 hubd = ohci_hubd; 2594 hubd.bNbrPorts = sc->sc_noport; 2595 USETW(hubd.wHubCharacteristics, 2596 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2597 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2598 /* XXX overcurrent */ 2599 ); 2600 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2601 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2602 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2603 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2604 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2605 l = min(len, hubd.bDescLength); 2606 totlen = l; 2607 memcpy(buf, &hubd, l); 2608 break; 2609 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2610 if (len != 4) { 2611 err = USBD_IOERROR; 2612 goto ret; 2613 } 2614 memset(buf, 0, len); /* ? XXX */ 2615 totlen = len; 2616 break; 2617 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2618 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2619 index)); 2620 if (index < 1 || index > sc->sc_noport) { 2621 err = USBD_IOERROR; 2622 goto ret; 2623 } 2624 if (len != 4) { 2625 err = USBD_IOERROR; 2626 goto ret; 2627 } 2628 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2629 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2630 v)); 2631 USETW(ps.wPortStatus, v); 2632 USETW(ps.wPortChange, v >> 16); 2633 l = min(len, sizeof ps); 2634 memcpy(buf, &ps, l); 2635 totlen = l; 2636 break; 2637 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2638 err = USBD_IOERROR; 2639 goto ret; 2640 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2641 break; 2642 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2643 if (index < 1 || index > sc->sc_noport) { 2644 err = USBD_IOERROR; 2645 goto ret; 2646 } 2647 port = OHCI_RH_PORT_STATUS(index); 2648 switch(value) { 2649 case UHF_PORT_ENABLE: 2650 OWRITE4(sc, port, UPS_PORT_ENABLED); 2651 break; 2652 case UHF_PORT_SUSPEND: 2653 OWRITE4(sc, port, UPS_SUSPEND); 2654 break; 2655 case UHF_PORT_RESET: 2656 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2657 index)); 2658 OWRITE4(sc, port, UPS_RESET); 2659 for (i = 0; i < 5; i++) { 2660 usb_delay_ms(&sc->sc_bus, 2661 USB_PORT_ROOT_RESET_DELAY); 2662 if (sc->sc_dying) { 2663 err = USBD_IOERROR; 2664 goto ret; 2665 } 2666 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2667 break; 2668 } 2669 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2670 index, OREAD4(sc, port))); 2671 break; 2672 case UHF_PORT_POWER: 2673 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2674 "%d\n", index)); 2675 OWRITE4(sc, port, UPS_PORT_POWER); 2676 break; 2677 default: 2678 err = USBD_IOERROR; 2679 goto ret; 2680 } 2681 break; 2682 default: 2683 err = USBD_IOERROR; 2684 goto ret; 2685 } 2686 xfer->actlen = totlen; 2687 err = USBD_NORMAL_COMPLETION; 2688 ret: 2689 xfer->status = err; 2690 s = splusb(); 2691 usb_transfer_complete(xfer); 2692 splx(s); 2693 return (USBD_IN_PROGRESS); 2694 } 2695 2696 /* Abort a root control request. */ 2697 Static void 2698 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2699 { 2700 /* Nothing to do, all transfers are synchronous. */ 2701 } 2702 2703 /* Close the root pipe. */ 2704 Static void 2705 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2706 { 2707 DPRINTF(("ohci_root_ctrl_close\n")); 2708 /* Nothing to do. */ 2709 } 2710 2711 Static usbd_status 2712 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2713 { 2714 usbd_status err; 2715 2716 /* Insert last in queue. */ 2717 err = usb_insert_transfer(xfer); 2718 if (err) 2719 return (err); 2720 2721 /* Pipe isn't running, start first */ 2722 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2723 } 2724 2725 Static usbd_status 2726 ohci_root_intr_start(usbd_xfer_handle xfer) 2727 { 2728 usbd_pipe_handle pipe = xfer->pipe; 2729 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2730 2731 if (sc->sc_dying) 2732 return (USBD_IOERROR); 2733 2734 sc->sc_intrxfer = xfer; 2735 2736 return (USBD_IN_PROGRESS); 2737 } 2738 2739 /* Abort a root interrupt request. */ 2740 Static void 2741 ohci_root_intr_abort(usbd_xfer_handle xfer) 2742 { 2743 int s; 2744 2745 if (xfer->pipe->intrxfer == xfer) { 2746 DPRINTF(("ohci_root_intr_abort: remove\n")); 2747 xfer->pipe->intrxfer = NULL; 2748 } 2749 xfer->status = USBD_CANCELLED; 2750 s = splusb(); 2751 usb_transfer_complete(xfer); 2752 splx(s); 2753 } 2754 2755 /* Close the root pipe. */ 2756 Static void 2757 ohci_root_intr_close(usbd_pipe_handle pipe) 2758 { 2759 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2760 2761 DPRINTF(("ohci_root_intr_close\n")); 2762 2763 sc->sc_intrxfer = NULL; 2764 } 2765 2766 /************************/ 2767 2768 Static usbd_status 2769 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2770 { 2771 usbd_status err; 2772 2773 /* Insert last in queue. */ 2774 err = usb_insert_transfer(xfer); 2775 if (err) 2776 return (err); 2777 2778 /* Pipe isn't running, start first */ 2779 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2780 } 2781 2782 Static usbd_status 2783 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2784 { 2785 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2786 usbd_status err; 2787 2788 if (sc->sc_dying) 2789 return (USBD_IOERROR); 2790 2791 #ifdef DIAGNOSTIC 2792 if (!(xfer->rqflags & URQ_REQUEST)) { 2793 /* XXX panic */ 2794 printf("ohci_device_ctrl_transfer: not a request\n"); 2795 return (USBD_INVAL); 2796 } 2797 #endif 2798 2799 err = ohci_device_request(xfer); 2800 if (err) 2801 return (err); 2802 2803 if (sc->sc_bus.use_polling) 2804 ohci_waitintr(sc, xfer); 2805 return (USBD_IN_PROGRESS); 2806 } 2807 2808 /* Abort a device control request. */ 2809 Static void 2810 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2811 { 2812 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2813 ohci_abort_xfer(xfer, USBD_CANCELLED); 2814 } 2815 2816 /* Close a device control pipe. */ 2817 Static void 2818 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2819 { 2820 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2821 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2822 2823 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2824 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2825 ohci_free_std(sc, opipe->tail.td); 2826 } 2827 2828 /************************/ 2829 2830 Static void 2831 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2832 { 2833 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2834 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2835 2836 opipe->sed->ed.ed_headp &= HTOO32(~OHCI_TOGGLECARRY); 2837 } 2838 2839 Static void 2840 ohci_noop(usbd_pipe_handle pipe) 2841 { 2842 } 2843 2844 Static usbd_status 2845 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2846 { 2847 usbd_status err; 2848 2849 /* Insert last in queue. */ 2850 err = usb_insert_transfer(xfer); 2851 if (err) 2852 return (err); 2853 2854 /* Pipe isn't running, start first */ 2855 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2856 } 2857 2858 Static usbd_status 2859 ohci_device_bulk_start(usbd_xfer_handle xfer) 2860 { 2861 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2862 usbd_device_handle dev = opipe->pipe.device; 2863 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2864 int addr = dev->address; 2865 ohci_soft_td_t *data, *tail, *tdp; 2866 ohci_soft_ed_t *sed; 2867 int s, len, isread, endpt; 2868 usbd_status err; 2869 2870 if (sc->sc_dying) 2871 return (USBD_IOERROR); 2872 2873 #ifdef DIAGNOSTIC 2874 if (xfer->rqflags & URQ_REQUEST) { 2875 /* XXX panic */ 2876 printf("ohci_device_bulk_start: a request\n"); 2877 return (USBD_INVAL); 2878 } 2879 #endif 2880 2881 len = xfer->length; 2882 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2883 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2884 sed = opipe->sed; 2885 2886 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2887 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2888 endpt)); 2889 2890 opipe->u.bulk.isread = isread; 2891 opipe->u.bulk.length = len; 2892 2893 /* Update device address */ 2894 sed->ed.ed_flags = HTOO32( 2895 (O32TOH(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2896 OHCI_ED_SET_FA(addr)); 2897 2898 /* Allocate a chain of new TDs (including a new tail). */ 2899 data = opipe->tail.td; 2900 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2901 data, &tail); 2902 /* We want interrupt at the end of the transfer. */ 2903 tail->td.td_flags &= HTOO32(~OHCI_TD_INTR_MASK); 2904 tail->td.td_flags |= HTOO32(OHCI_TD_SET_DI(1)); 2905 tail->flags |= OHCI_CALL_DONE; 2906 tail = tail->nexttd; /* point at sentinel */ 2907 if (err) 2908 return (err); 2909 2910 tail->xfer = NULL; 2911 xfer->hcpriv = data; 2912 2913 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2914 "td_cbp=0x%08x td_be=0x%08x\n", 2915 (int)O32TOH(sed->ed.ed_flags), 2916 (int)O32TOH(data->td.td_flags), 2917 (int)O32TOH(data->td.td_cbp), 2918 (int)O32TOH(data->td.td_be))); 2919 2920 #ifdef OHCI_DEBUG 2921 if (ohcidebug > 5) { 2922 ohci_dump_ed(sc, sed); 2923 ohci_dump_tds(sc, data); 2924 } 2925 #endif 2926 2927 /* Insert ED in schedule */ 2928 s = splusb(); 2929 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2930 tdp->xfer = xfer; 2931 } 2932 sed->ed.ed_tailp = HTOO32(tail->physaddr); 2933 opipe->tail.td = tail; 2934 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 2935 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2936 if (xfer->timeout && !sc->sc_bus.use_polling) { 2937 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2938 ohci_timeout, xfer); 2939 } 2940 2941 #if 0 2942 /* This goes wrong if we are too slow. */ 2943 if (ohcidebug > 10) { 2944 delay(10000); 2945 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2946 OREAD4(sc, OHCI_COMMAND_STATUS))); 2947 ohci_dump_ed(sc, sed); 2948 ohci_dump_tds(sc, data); 2949 } 2950 #endif 2951 2952 splx(s); 2953 2954 return (USBD_IN_PROGRESS); 2955 } 2956 2957 Static void 2958 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2959 { 2960 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2961 ohci_abort_xfer(xfer, USBD_CANCELLED); 2962 } 2963 2964 /* 2965 * Close a device bulk pipe. 2966 */ 2967 Static void 2968 ohci_device_bulk_close(usbd_pipe_handle pipe) 2969 { 2970 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2971 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2972 2973 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2974 ohci_close_pipe(pipe, sc->sc_bulk_head); 2975 ohci_free_std(sc, opipe->tail.td); 2976 } 2977 2978 /************************/ 2979 2980 Static usbd_status 2981 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2982 { 2983 usbd_status err; 2984 2985 /* Insert last in queue. */ 2986 err = usb_insert_transfer(xfer); 2987 if (err) 2988 return (err); 2989 2990 /* Pipe isn't running, start first */ 2991 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2992 } 2993 2994 Static usbd_status 2995 ohci_device_intr_start(usbd_xfer_handle xfer) 2996 { 2997 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2998 usbd_device_handle dev = opipe->pipe.device; 2999 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3000 ohci_soft_ed_t *sed = opipe->sed; 3001 ohci_soft_td_t *data, *tail; 3002 int s, len, isread, endpt; 3003 3004 if (sc->sc_dying) 3005 return (USBD_IOERROR); 3006 3007 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 3008 "flags=%d priv=%p\n", 3009 xfer, xfer->length, xfer->flags, xfer->priv)); 3010 3011 #ifdef DIAGNOSTIC 3012 if (xfer->rqflags & URQ_REQUEST) 3013 panic("ohci_device_intr_transfer: a request"); 3014 #endif 3015 3016 len = xfer->length; 3017 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 3018 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3019 3020 data = opipe->tail.td; 3021 tail = ohci_alloc_std(sc); 3022 if (tail == NULL) 3023 return (USBD_NOMEM); 3024 tail->xfer = NULL; 3025 3026 data->td.td_flags = HTOO32( 3027 isread ? OHCI_TD_IN : OHCI_TD_OUT | 3028 OHCI_TD_NOCC | 3029 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 3030 if (xfer->flags & USBD_SHORT_XFER_OK) 3031 data->td.td_flags |= HTOO32(OHCI_TD_R); 3032 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 3033 data->nexttd = tail; 3034 data->td.td_nexttd = HTOO32(tail->physaddr); 3035 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + len - 1); 3036 data->len = len; 3037 data->xfer = xfer; 3038 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 3039 xfer->hcpriv = data; 3040 3041 #ifdef OHCI_DEBUG 3042 if (ohcidebug > 5) { 3043 DPRINTF(("ohci_device_intr_transfer:\n")); 3044 ohci_dump_ed(sc, sed); 3045 ohci_dump_tds(sc, data); 3046 } 3047 #endif 3048 3049 /* Insert ED in schedule */ 3050 s = splusb(); 3051 sed->ed.ed_tailp = HTOO32(tail->physaddr); 3052 opipe->tail.td = tail; 3053 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3054 3055 #if 0 3056 /* 3057 * This goes horribly wrong, printing thousands of descriptors, 3058 * because false references are followed due to the fact that the 3059 * TD is gone. 3060 */ 3061 if (ohcidebug > 5) { 3062 usb_delay_ms(&sc->sc_bus, 5); 3063 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 3064 OREAD4(sc, OHCI_COMMAND_STATUS))); 3065 ohci_dump_ed(sc, sed); 3066 ohci_dump_tds(sc, data); 3067 } 3068 #endif 3069 splx(s); 3070 3071 return (USBD_IN_PROGRESS); 3072 } 3073 3074 /* Abort a device control request. */ 3075 Static void 3076 ohci_device_intr_abort(usbd_xfer_handle xfer) 3077 { 3078 if (xfer->pipe->intrxfer == xfer) { 3079 DPRINTF(("ohci_device_intr_abort: remove\n")); 3080 xfer->pipe->intrxfer = NULL; 3081 } 3082 ohci_abort_xfer(xfer, USBD_CANCELLED); 3083 } 3084 3085 /* Close a device interrupt pipe. */ 3086 Static void 3087 ohci_device_intr_close(usbd_pipe_handle pipe) 3088 { 3089 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3090 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3091 int nslots = opipe->u.intr.nslots; 3092 int pos = opipe->u.intr.pos; 3093 int j; 3094 ohci_soft_ed_t *p, *sed = opipe->sed; 3095 int s; 3096 3097 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 3098 pipe, nslots, pos)); 3099 s = splusb(); 3100 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 3101 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 3102 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 3103 usb_delay_ms(&sc->sc_bus, 2); 3104 3105 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 3106 continue; 3107 #ifdef DIAGNOSTIC 3108 if (p == NULL) 3109 panic("ohci_device_intr_close: ED not found"); 3110 #endif 3111 p->next = sed->next; 3112 p->ed.ed_nexted = sed->ed.ed_nexted; 3113 splx(s); 3114 3115 for (j = 0; j < nslots; j++) 3116 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 3117 3118 ohci_free_std(sc, opipe->tail.td); 3119 ohci_free_sed(sc, opipe->sed); 3120 } 3121 3122 Static usbd_status 3123 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 3124 { 3125 int i, j, s, best; 3126 u_int npoll, slow, shigh, nslots; 3127 u_int bestbw, bw; 3128 ohci_soft_ed_t *hsed, *sed = opipe->sed; 3129 3130 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 3131 if (ival == 0) { 3132 printf("ohci_setintr: 0 interval\n"); 3133 return (USBD_INVAL); 3134 } 3135 3136 npoll = OHCI_NO_INTRS; 3137 while (npoll > ival) 3138 npoll /= 2; 3139 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 3140 3141 /* 3142 * We now know which level in the tree the ED must go into. 3143 * Figure out which slot has most bandwidth left over. 3144 * Slots to examine: 3145 * npoll 3146 * 1 0 3147 * 2 1 2 3148 * 4 3 4 5 6 3149 * 8 7 8 9 10 11 12 13 14 3150 * N (N-1) .. (N-1+N-1) 3151 */ 3152 slow = npoll-1; 3153 shigh = slow + npoll; 3154 nslots = OHCI_NO_INTRS / npoll; 3155 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 3156 bw = 0; 3157 for (j = 0; j < nslots; j++) 3158 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 3159 if (bw < bestbw) { 3160 best = i; 3161 bestbw = bw; 3162 } 3163 } 3164 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 3165 best, slow, shigh, bestbw)); 3166 3167 s = splusb(); 3168 hsed = sc->sc_eds[best]; 3169 sed->next = hsed->next; 3170 sed->ed.ed_nexted = hsed->ed.ed_nexted; 3171 hsed->next = sed; 3172 hsed->ed.ed_nexted = HTOO32(sed->physaddr); 3173 splx(s); 3174 3175 for (j = 0; j < nslots; j++) 3176 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 3177 opipe->u.intr.nslots = nslots; 3178 opipe->u.intr.pos = best; 3179 3180 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 3181 return (USBD_NORMAL_COMPLETION); 3182 } 3183 3184 /***********************/ 3185 3186 usbd_status 3187 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 3188 { 3189 usbd_status err; 3190 3191 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3192 3193 /* Put it on our queue, */ 3194 err = usb_insert_transfer(xfer); 3195 3196 /* bail out on error, */ 3197 if (err && err != USBD_IN_PROGRESS) 3198 return (err); 3199 3200 /* XXX should check inuse here */ 3201 3202 /* insert into schedule, */ 3203 ohci_device_isoc_enter(xfer); 3204 3205 /* and start if the pipe wasn't running */ 3206 if (!err) 3207 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3208 3209 return (err); 3210 } 3211 3212 void 3213 ohci_device_isoc_enter(usbd_xfer_handle xfer) 3214 { 3215 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3216 usbd_device_handle dev = opipe->pipe.device; 3217 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3218 ohci_soft_ed_t *sed = opipe->sed; 3219 struct iso *iso = &opipe->u.iso; 3220 ohci_soft_itd_t *sitd, *nsitd; 3221 ohci_physaddr_t buf, offs, noffs, bp0; 3222 int i, ncur, nframes; 3223 int s; 3224 3225 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3226 "nframes=%d\n", 3227 iso->inuse, iso->next, xfer, xfer->nframes)); 3228 3229 if (sc->sc_dying) 3230 return; 3231 3232 if (iso->next == -1) { 3233 /* Not in use yet, schedule it a few frames ahead. */ 3234 iso->next = O32TOH(sc->sc_hcca->hcca_frame_number) + 5; 3235 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3236 iso->next)); 3237 } 3238 3239 sitd = opipe->tail.itd; 3240 buf = DMAADDR(&xfer->dmabuf, 0); 3241 bp0 = OHCI_PAGE(buf); 3242 offs = OHCI_PAGE_OFFSET(buf); 3243 nframes = xfer->nframes; 3244 xfer->hcpriv = sitd; 3245 for (i = ncur = 0; i < nframes; i++, ncur++) { 3246 noffs = offs + xfer->frlengths[i]; 3247 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3248 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3249 3250 /* Allocate next ITD */ 3251 nsitd = ohci_alloc_sitd(sc); 3252 if (nsitd == NULL) { 3253 /* XXX what now? */ 3254 printf("%s: isoc TD alloc failed\n", 3255 USBDEVNAME(sc->sc_bus.bdev)); 3256 return; 3257 } 3258 3259 /* Fill current ITD */ 3260 sitd->itd.itd_flags = HTOO32( 3261 OHCI_ITD_NOCC | 3262 OHCI_ITD_SET_SF(iso->next) | 3263 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3264 OHCI_ITD_SET_FC(ncur)); 3265 sitd->itd.itd_bp0 = HTOO32(bp0); 3266 sitd->nextitd = nsitd; 3267 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3268 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3269 sitd->xfer = xfer; 3270 sitd->flags = 0; 3271 3272 sitd = nsitd; 3273 iso->next = iso->next + ncur; 3274 bp0 = OHCI_PAGE(buf + offs); 3275 ncur = 0; 3276 } 3277 sitd->itd.itd_offset[ncur] = HTOO16(OHCI_ITD_MK_OFFS(offs)); 3278 offs = noffs; 3279 } 3280 nsitd = ohci_alloc_sitd(sc); 3281 if (nsitd == NULL) { 3282 /* XXX what now? */ 3283 printf("%s: isoc TD alloc failed\n", 3284 USBDEVNAME(sc->sc_bus.bdev)); 3285 return; 3286 } 3287 /* Fixup last used ITD */ 3288 sitd->itd.itd_flags = HTOO32( 3289 OHCI_ITD_NOCC | 3290 OHCI_ITD_SET_SF(iso->next) | 3291 OHCI_ITD_SET_DI(0) | 3292 OHCI_ITD_SET_FC(ncur)); 3293 sitd->itd.itd_bp0 = HTOO32(bp0); 3294 sitd->nextitd = nsitd; 3295 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3296 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3297 sitd->xfer = xfer; 3298 sitd->flags = OHCI_CALL_DONE; 3299 3300 iso->next = iso->next + ncur; 3301 iso->inuse += nframes; 3302 3303 xfer->actlen = offs; /* XXX pretend we did it all */ 3304 3305 xfer->status = USBD_IN_PROGRESS; 3306 3307 #ifdef OHCI_DEBUG 3308 if (ohcidebug > 5) { 3309 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3310 O32TOH(sc->sc_hcca->hcca_frame_number))); 3311 ohci_dump_itds(sc, xfer->hcpriv); 3312 ohci_dump_ed(sc, sed); 3313 } 3314 #endif 3315 3316 s = splusb(); 3317 sed->ed.ed_tailp = HTOO32(nsitd->physaddr); 3318 opipe->tail.itd = nsitd; 3319 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3320 splx(s); 3321 3322 #ifdef OHCI_DEBUG 3323 if (ohcidebug > 5) { 3324 delay(150000); 3325 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3326 O32TOH(sc->sc_hcca->hcca_frame_number))); 3327 ohci_dump_itds(sc, xfer->hcpriv); 3328 ohci_dump_ed(sc, sed); 3329 } 3330 #endif 3331 } 3332 3333 usbd_status 3334 ohci_device_isoc_start(usbd_xfer_handle xfer) 3335 { 3336 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3337 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3338 3339 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3340 3341 if (sc->sc_dying) 3342 return (USBD_IOERROR); 3343 3344 #ifdef DIAGNOSTIC 3345 if (xfer->status != USBD_IN_PROGRESS) 3346 printf("ohci_device_isoc_start: not in progress %p\n", xfer); 3347 #endif 3348 3349 /* XXX anything to do? */ 3350 3351 return (USBD_IN_PROGRESS); 3352 } 3353 3354 void 3355 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3356 { 3357 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3358 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3359 ohci_soft_ed_t *sed; 3360 ohci_soft_itd_t *sitd; 3361 int s; 3362 3363 s = splusb(); 3364 3365 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3366 3367 /* Transfer is already done. */ 3368 if (xfer->status != USBD_NOT_STARTED && 3369 xfer->status != USBD_IN_PROGRESS) { 3370 splx(s); 3371 printf("ohci_device_isoc_abort: early return\n"); 3372 return; 3373 } 3374 3375 /* Give xfer the requested abort code. */ 3376 xfer->status = USBD_CANCELLED; 3377 3378 sed = opipe->sed; 3379 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 3380 3381 sitd = xfer->hcpriv; 3382 #ifdef DIAGNOSTIC 3383 if (sitd == NULL) { 3384 splx(s); 3385 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3386 return; 3387 } 3388 #endif 3389 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3390 #ifdef DIAGNOSTIC 3391 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3392 sitd->isdone = 1; 3393 #endif 3394 } 3395 3396 splx(s); 3397 3398 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3399 3400 s = splusb(); 3401 3402 /* Run callback. */ 3403 usb_transfer_complete(xfer); 3404 3405 sed->ed.ed_headp = HTOO32(sitd->physaddr); /* unlink TDs */ 3406 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 3407 3408 splx(s); 3409 } 3410 3411 void 3412 ohci_device_isoc_done(usbd_xfer_handle xfer) 3413 { 3414 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3415 } 3416 3417 usbd_status 3418 ohci_setup_isoc(usbd_pipe_handle pipe) 3419 { 3420 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3421 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3422 struct iso *iso = &opipe->u.iso; 3423 int s; 3424 3425 iso->next = -1; 3426 iso->inuse = 0; 3427 3428 s = splusb(); 3429 ohci_add_ed(sc, opipe->sed, sc->sc_isoc_head); 3430 splx(s); 3431 3432 return (USBD_NORMAL_COMPLETION); 3433 } 3434 3435 void 3436 ohci_device_isoc_close(usbd_pipe_handle pipe) 3437 { 3438 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3439 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3440 3441 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3442 ohci_close_pipe(pipe, sc->sc_isoc_head); 3443 #ifdef DIAGNOSTIC 3444 opipe->tail.itd->isdone = 1; 3445 #endif 3446 ohci_free_sitd(sc, opipe->tail.itd); 3447 } 3448
Indexes created Tue Sep 23 07:09:52 GMT 2025