ohci.c revision 1.141
1 /* $NetBSD: ohci.c,v 1.141 2003/09/10 20:08:29 mycroft 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 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 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Open Host Controller driver. 43 * 44 * OHCI spec: http://www.compaq.com/productinfo/development/openhci.html 45 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 46 */ 47 48 #include <sys/cdefs.h> 49 __KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.141 2003/09/10 20:08:29 mycroft Exp $"); 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/malloc.h> 54 #if defined(__NetBSD__) || defined(__OpenBSD__) 55 #include <sys/kernel.h> 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #include <machine/bus_memio.h> 63 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 64 #include <machine/cpu.h> 65 #endif 66 #endif 67 #include <sys/proc.h> 68 #include <sys/queue.h> 69 70 #include <machine/bus.h> 71 #include <machine/endian.h> 72 73 #include <dev/usb/usb.h> 74 #include <dev/usb/usbdi.h> 75 #include <dev/usb/usbdivar.h> 76 #include <dev/usb/usb_mem.h> 77 #include <dev/usb/usb_quirks.h> 78 79 #include <dev/usb/ohcireg.h> 80 #include <dev/usb/ohcivar.h> 81 82 #if defined(__FreeBSD__) 83 #include <machine/clock.h> 84 85 #define delay(d) DELAY(d) 86 #endif 87 88 #if defined(__OpenBSD__) 89 struct cfdriver ohci_cd = { 90 NULL, "ohci", DV_DULL 91 }; 92 #endif 93 94 #ifdef OHCI_DEBUG 95 #define DPRINTF(x) if (ohcidebug) logprintf x 96 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 97 int ohcidebug = 0; 98 #ifndef __NetBSD__ 99 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 100 #endif 101 #else 102 #define DPRINTF(x) 103 #define DPRINTFN(n,x) 104 #endif 105 106 /* 107 * The OHCI controller is little endian, so on big endian machines 108 * the data strored in memory needs to be swapped. 109 */ 110 #if defined(__FreeBSD__) || defined(__OpenBSD__) 111 #if BYTE_ORDER == BIG_ENDIAN 112 #define htole32(x) (bswap32(x)) 113 #define le32toh(x) (bswap32(x)) 114 #else 115 #define htole32(x) (x) 116 #define le32toh(x) (x) 117 #endif 118 #endif 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 void ohci_power(int, void *); 141 Static usbd_status ohci_open(usbd_pipe_handle); 142 Static void ohci_poll(struct usbd_bus *); 143 Static void ohci_softintr(void *); 144 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 145 Static void ohci_add_done(ohci_softc_t *, ohci_physaddr_t); 146 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 147 148 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 149 Static void ohci_add_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 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_able(ohci_softc_t *, int); 211 Static void ohci_rhsc_enable(void *); 212 213 Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *); 214 Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status); 215 216 Static void ohci_device_clear_toggle(usbd_pipe_handle pipe); 217 Static void ohci_noop(usbd_pipe_handle pipe); 218 219 #ifdef OHCI_DEBUG 220 Static void ohci_dumpregs(ohci_softc_t *); 221 Static void ohci_dump_tds(ohci_soft_td_t *); 222 Static void ohci_dump_td(ohci_soft_td_t *); 223 Static void ohci_dump_ed(ohci_soft_ed_t *); 224 Static void ohci_dump_itd(ohci_soft_itd_t *); 225 Static void ohci_dump_itds(ohci_soft_itd_t *); 226 #endif 227 228 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 229 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 230 #define OWRITE1(sc, r, x) \ 231 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 232 #define OWRITE2(sc, r, x) \ 233 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 234 #define OWRITE4(sc, r, x) \ 235 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 236 #define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 237 #define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 238 #define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 239 240 /* Reverse the bits in a value 0 .. 31 */ 241 Static u_int8_t revbits[OHCI_NO_INTRS] = 242 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 243 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 244 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 245 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 246 247 struct ohci_pipe { 248 struct usbd_pipe pipe; 249 ohci_soft_ed_t *sed; 250 union { 251 ohci_soft_td_t *td; 252 ohci_soft_itd_t *itd; 253 } tail; 254 /* Info needed for different pipe kinds. */ 255 union { 256 /* Control pipe */ 257 struct { 258 usb_dma_t reqdma; 259 u_int length; 260 ohci_soft_td_t *setup, *data, *stat; 261 } ctl; 262 /* Interrupt pipe */ 263 struct { 264 int nslots; 265 int pos; 266 } intr; 267 /* Bulk pipe */ 268 struct { 269 u_int length; 270 int isread; 271 } bulk; 272 /* Iso pipe */ 273 struct iso { 274 int next, inuse; 275 } iso; 276 } u; 277 }; 278 279 #define OHCI_INTR_ENDPT 1 280 281 Static struct usbd_bus_methods ohci_bus_methods = { 282 ohci_open, 283 ohci_softintr, 284 ohci_poll, 285 ohci_allocm, 286 ohci_freem, 287 ohci_allocx, 288 ohci_freex, 289 }; 290 291 Static struct usbd_pipe_methods ohci_root_ctrl_methods = { 292 ohci_root_ctrl_transfer, 293 ohci_root_ctrl_start, 294 ohci_root_ctrl_abort, 295 ohci_root_ctrl_close, 296 ohci_noop, 297 ohci_root_ctrl_done, 298 }; 299 300 Static struct usbd_pipe_methods ohci_root_intr_methods = { 301 ohci_root_intr_transfer, 302 ohci_root_intr_start, 303 ohci_root_intr_abort, 304 ohci_root_intr_close, 305 ohci_noop, 306 ohci_root_intr_done, 307 }; 308 309 Static struct usbd_pipe_methods ohci_device_ctrl_methods = { 310 ohci_device_ctrl_transfer, 311 ohci_device_ctrl_start, 312 ohci_device_ctrl_abort, 313 ohci_device_ctrl_close, 314 ohci_noop, 315 ohci_device_ctrl_done, 316 }; 317 318 Static struct usbd_pipe_methods ohci_device_intr_methods = { 319 ohci_device_intr_transfer, 320 ohci_device_intr_start, 321 ohci_device_intr_abort, 322 ohci_device_intr_close, 323 ohci_device_clear_toggle, 324 ohci_device_intr_done, 325 }; 326 327 Static struct usbd_pipe_methods ohci_device_bulk_methods = { 328 ohci_device_bulk_transfer, 329 ohci_device_bulk_start, 330 ohci_device_bulk_abort, 331 ohci_device_bulk_close, 332 ohci_device_clear_toggle, 333 ohci_device_bulk_done, 334 }; 335 336 Static struct usbd_pipe_methods ohci_device_isoc_methods = { 337 ohci_device_isoc_transfer, 338 ohci_device_isoc_start, 339 ohci_device_isoc_abort, 340 ohci_device_isoc_close, 341 ohci_noop, 342 ohci_device_isoc_done, 343 }; 344 345 #if defined(__NetBSD__) || defined(__OpenBSD__) 346 int 347 ohci_activate(device_ptr_t self, enum devact act) 348 { 349 struct ohci_softc *sc = (struct ohci_softc *)self; 350 int rv = 0; 351 352 switch (act) { 353 case DVACT_ACTIVATE: 354 return (EOPNOTSUPP); 355 break; 356 357 case DVACT_DEACTIVATE: 358 if (sc->sc_child != NULL) 359 rv = config_deactivate(sc->sc_child); 360 sc->sc_dying = 1; 361 break; 362 } 363 return (rv); 364 } 365 366 int 367 ohci_detach(struct ohci_softc *sc, int flags) 368 { 369 int rv = 0; 370 371 if (sc->sc_child != NULL) 372 rv = config_detach(sc->sc_child, flags); 373 374 if (rv != 0) 375 return (rv); 376 377 usb_uncallout(sc->sc_tmo_rhsc, ohci_rhsc_enable, sc); 378 379 #if defined(__NetBSD__) || defined(__OpenBSD__) 380 powerhook_disestablish(sc->sc_powerhook); 381 shutdownhook_disestablish(sc->sc_shutdownhook); 382 #endif 383 384 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 385 386 /* free data structures XXX */ 387 388 return (rv); 389 } 390 #endif 391 392 ohci_soft_ed_t * 393 ohci_alloc_sed(ohci_softc_t *sc) 394 { 395 ohci_soft_ed_t *sed; 396 usbd_status err; 397 int i, offs; 398 usb_dma_t dma; 399 400 if (sc->sc_freeeds == NULL) { 401 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 402 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 403 OHCI_ED_ALIGN, &dma); 404 if (err) 405 return (0); 406 for(i = 0; i < OHCI_SED_CHUNK; i++) { 407 offs = i * OHCI_SED_SIZE; 408 sed = KERNADDR(&dma, offs); 409 sed->physaddr = DMAADDR(&dma, offs); 410 sed->next = sc->sc_freeeds; 411 sc->sc_freeeds = sed; 412 } 413 } 414 sed = sc->sc_freeeds; 415 sc->sc_freeeds = sed->next; 416 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 417 sed->next = 0; 418 return (sed); 419 } 420 421 void 422 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 423 { 424 sed->next = sc->sc_freeeds; 425 sc->sc_freeeds = sed; 426 } 427 428 ohci_soft_td_t * 429 ohci_alloc_std(ohci_softc_t *sc) 430 { 431 ohci_soft_td_t *std; 432 usbd_status err; 433 int i, offs; 434 usb_dma_t dma; 435 int s; 436 437 if (sc->sc_freetds == NULL) { 438 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 439 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 440 OHCI_TD_ALIGN, &dma); 441 if (err) 442 return (NULL); 443 s = splusb(); 444 for(i = 0; i < OHCI_STD_CHUNK; i++) { 445 offs = i * OHCI_STD_SIZE; 446 std = KERNADDR(&dma, offs); 447 std->physaddr = DMAADDR(&dma, offs); 448 std->nexttd = sc->sc_freetds; 449 sc->sc_freetds = std; 450 } 451 splx(s); 452 } 453 454 s = splusb(); 455 std = sc->sc_freetds; 456 sc->sc_freetds = std->nexttd; 457 memset(&std->td, 0, sizeof(ohci_td_t)); 458 std->nexttd = NULL; 459 std->xfer = NULL; 460 ohci_hash_add_td(sc, std); 461 splx(s); 462 463 return (std); 464 } 465 466 void 467 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 468 { 469 int s; 470 471 s = splusb(); 472 ohci_hash_rem_td(sc, std); 473 std->nexttd = sc->sc_freetds; 474 sc->sc_freetds = std; 475 splx(s); 476 } 477 478 usbd_status 479 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 480 int alen, int rd, usbd_xfer_handle xfer, 481 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 482 { 483 ohci_soft_td_t *next, *cur; 484 ohci_physaddr_t dataphys, dataphysend; 485 u_int32_t tdflags; 486 int len, curlen; 487 usb_dma_t *dma = &xfer->dmabuf; 488 u_int16_t flags = xfer->flags; 489 490 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 491 492 len = alen; 493 cur = sp; 494 dataphys = DMAADDR(dma, 0); 495 dataphysend = OHCI_PAGE(dataphys + len - 1); 496 tdflags = htole32( 497 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 498 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 499 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 500 501 for (;;) { 502 next = ohci_alloc_std(sc); 503 if (next == NULL) 504 goto nomem; 505 506 /* The OHCI hardware can handle at most one page crossing. */ 507 if (OHCI_PAGE(dataphys) == dataphysend || 508 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 509 /* we can handle it in this TD */ 510 curlen = len; 511 } else { 512 /* must use multiple TDs, fill as much as possible. */ 513 curlen = 2 * OHCI_PAGE_SIZE - 514 (dataphys & (OHCI_PAGE_SIZE-1)); 515 /* the length must be a multiple of the max size */ 516 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 517 #ifdef DIAGNOSTIC 518 if (curlen == 0) 519 panic("ohci_alloc_std: curlen == 0"); 520 #endif 521 } 522 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 523 "dataphysend=0x%08x len=%d curlen=%d\n", 524 dataphys, dataphysend, 525 len, curlen)); 526 len -= curlen; 527 528 cur->td.td_flags = tdflags; 529 cur->td.td_cbp = htole32(dataphys); 530 cur->nexttd = next; 531 cur->td.td_nexttd = htole32(next->physaddr); 532 cur->td.td_be = htole32(dataphys + curlen - 1); 533 cur->len = curlen; 534 cur->flags = OHCI_ADD_LEN; 535 cur->xfer = xfer; 536 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 537 dataphys, dataphys + curlen - 1)); 538 if (len == 0) 539 break; 540 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 541 dataphys += curlen; 542 cur = next; 543 } 544 if ((flags & USBD_FORCE_SHORT_XFER) && 545 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 546 /* Force a 0 length transfer at the end. */ 547 548 cur = next; 549 next = ohci_alloc_std(sc); 550 if (next == NULL) 551 goto nomem; 552 553 cur->td.td_flags = tdflags; 554 cur->td.td_cbp = 0; /* indicate 0 length packet */ 555 cur->nexttd = next; 556 cur->td.td_nexttd = htole32(next->physaddr); 557 cur->td.td_be = ~0; 558 cur->len = 0; 559 cur->flags = 0; 560 cur->xfer = xfer; 561 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 562 } 563 *ep = cur; 564 565 return (USBD_NORMAL_COMPLETION); 566 567 nomem: 568 /* XXX free chain */ 569 return (USBD_NOMEM); 570 } 571 572 #if 0 573 Static void 574 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 575 ohci_soft_td_t *stdend) 576 { 577 ohci_soft_td_t *p; 578 579 for (; std != stdend; std = p) { 580 p = std->nexttd; 581 ohci_free_std(sc, std); 582 } 583 } 584 #endif 585 586 ohci_soft_itd_t * 587 ohci_alloc_sitd(ohci_softc_t *sc) 588 { 589 ohci_soft_itd_t *sitd; 590 usbd_status err; 591 int i, s, offs; 592 usb_dma_t dma; 593 594 if (sc->sc_freeitds == NULL) { 595 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 596 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 597 OHCI_ITD_ALIGN, &dma); 598 if (err) 599 return (NULL); 600 s = splusb(); 601 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 602 offs = i * OHCI_SITD_SIZE; 603 sitd = KERNADDR(&dma, offs); 604 sitd->physaddr = DMAADDR(&dma, offs); 605 sitd->nextitd = sc->sc_freeitds; 606 sc->sc_freeitds = sitd; 607 } 608 splx(s); 609 } 610 611 s = splusb(); 612 sitd = sc->sc_freeitds; 613 sc->sc_freeitds = sitd->nextitd; 614 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 615 sitd->nextitd = NULL; 616 sitd->xfer = NULL; 617 ohci_hash_add_itd(sc, sitd); 618 splx(s); 619 620 #ifdef DIAGNOSTIC 621 sitd->isdone = 0; 622 #endif 623 624 return (sitd); 625 } 626 627 void 628 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 629 { 630 int s; 631 632 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 633 634 #ifdef DIAGNOSTIC 635 if (!sitd->isdone) { 636 panic("ohci_free_sitd: sitd=%p not done", sitd); 637 return; 638 } 639 /* Warn double free */ 640 sitd->isdone = 0; 641 #endif 642 643 s = splusb(); 644 ohci_hash_rem_itd(sc, sitd); 645 sitd->nextitd = sc->sc_freeitds; 646 sc->sc_freeitds = sitd; 647 splx(s); 648 } 649 650 usbd_status 651 ohci_init(ohci_softc_t *sc) 652 { 653 ohci_soft_ed_t *sed, *psed; 654 usbd_status err; 655 int i; 656 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 657 658 DPRINTF(("ohci_init: start\n")); 659 #if defined(__OpenBSD__) 660 printf(","); 661 #else 662 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 663 #endif 664 rev = OREAD4(sc, OHCI_REVISION); 665 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 666 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 667 668 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 669 printf("%s: unsupported OHCI revision\n", 670 USBDEVNAME(sc->sc_bus.bdev)); 671 sc->sc_bus.usbrev = USBREV_UNKNOWN; 672 return (USBD_INVAL); 673 } 674 sc->sc_bus.usbrev = USBREV_1_0; 675 676 for (i = 0; i < OHCI_HASH_SIZE; i++) 677 LIST_INIT(&sc->sc_hash_tds[i]); 678 for (i = 0; i < OHCI_HASH_SIZE; i++) 679 LIST_INIT(&sc->sc_hash_itds[i]); 680 681 SIMPLEQ_INIT(&sc->sc_free_xfers); 682 683 /* XXX determine alignment by R/W */ 684 /* Allocate the HCCA area. */ 685 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 686 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 687 if (err) 688 return (err); 689 sc->sc_hcca = KERNADDR(&sc->sc_hccadma, 0); 690 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 691 692 sc->sc_eintrs = OHCI_NORMAL_INTRS; 693 694 /* Allocate dummy ED that starts the control list. */ 695 sc->sc_ctrl_head = ohci_alloc_sed(sc); 696 if (sc->sc_ctrl_head == NULL) { 697 err = USBD_NOMEM; 698 goto bad1; 699 } 700 sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 701 702 /* Allocate dummy ED that starts the bulk list. */ 703 sc->sc_bulk_head = ohci_alloc_sed(sc); 704 if (sc->sc_bulk_head == NULL) { 705 err = USBD_NOMEM; 706 goto bad2; 707 } 708 sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 709 710 /* Allocate dummy ED that starts the isochronous list. */ 711 sc->sc_isoc_head = ohci_alloc_sed(sc); 712 if (sc->sc_isoc_head == NULL) { 713 err = USBD_NOMEM; 714 goto bad3; 715 } 716 sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 717 718 /* Allocate all the dummy EDs that make up the interrupt tree. */ 719 for (i = 0; i < OHCI_NO_EDS; i++) { 720 sed = ohci_alloc_sed(sc); 721 if (sed == NULL) { 722 while (--i >= 0) 723 ohci_free_sed(sc, sc->sc_eds[i]); 724 err = USBD_NOMEM; 725 goto bad4; 726 } 727 /* All ED fields are set to 0. */ 728 sc->sc_eds[i] = sed; 729 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 730 if (i != 0) 731 psed = sc->sc_eds[(i-1) / 2]; 732 else 733 psed= sc->sc_isoc_head; 734 sed->next = psed; 735 sed->ed.ed_nexted = htole32(psed->physaddr); 736 } 737 /* 738 * Fill HCCA interrupt table. The bit reversal is to get 739 * the tree set up properly to spread the interrupts. 740 */ 741 for (i = 0; i < OHCI_NO_INTRS; i++) 742 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 743 htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 744 745 #ifdef OHCI_DEBUG 746 if (ohcidebug > 15) { 747 for (i = 0; i < OHCI_NO_EDS; i++) { 748 printf("ed#%d ", i); 749 ohci_dump_ed(sc->sc_eds[i]); 750 } 751 printf("iso "); 752 ohci_dump_ed(sc->sc_isoc_head); 753 } 754 #endif 755 756 /* Determine in what context we are running. */ 757 ctl = OREAD4(sc, OHCI_CONTROL); 758 if (ctl & OHCI_IR) { 759 /* SMM active, request change */ 760 DPRINTF(("ohci_init: SMM active, request owner change\n")); 761 s = OREAD4(sc, OHCI_COMMAND_STATUS); 762 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 763 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 764 usb_delay_ms(&sc->sc_bus, 1); 765 ctl = OREAD4(sc, OHCI_CONTROL); 766 } 767 if ((ctl & OHCI_IR) == 0) { 768 printf("%s: SMM does not respond, resetting\n", 769 USBDEVNAME(sc->sc_bus.bdev)); 770 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 771 goto reset; 772 } 773 #if 0 774 /* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */ 775 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 776 /* BIOS started controller. */ 777 DPRINTF(("ohci_init: BIOS active\n")); 778 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 779 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 780 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 781 } 782 #endif 783 } else { 784 DPRINTF(("ohci_init: cold started\n")); 785 reset: 786 /* Controller was cold started. */ 787 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 788 } 789 790 /* 791 * This reset should not be necessary according to the OHCI spec, but 792 * without it some controllers do not start. 793 */ 794 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 795 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 796 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 797 798 /* We now own the host controller and the bus has been reset. */ 799 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 800 801 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 802 /* Nominal time for a reset is 10 us. */ 803 for (i = 0; i < 10; i++) { 804 delay(10); 805 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 806 if (!hcr) 807 break; 808 } 809 if (hcr) { 810 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 811 err = USBD_IOERROR; 812 goto bad5; 813 } 814 #ifdef OHCI_DEBUG 815 if (ohcidebug > 15) 816 ohci_dumpregs(sc); 817 #endif 818 819 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 820 821 /* Set up HC registers. */ 822 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 823 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 824 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 825 /* disable all interrupts and then switch on all desired interrupts */ 826 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 827 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 828 /* switch on desired functional features */ 829 ctl = OREAD4(sc, OHCI_CONTROL); 830 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 831 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 832 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 833 /* And finally start it! */ 834 OWRITE4(sc, OHCI_CONTROL, ctl); 835 836 /* 837 * The controller is now OPERATIONAL. Set a some final 838 * registers that should be set earlier, but that the 839 * controller ignores when in the SUSPEND state. 840 */ 841 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 842 fm |= OHCI_FSMPS(ival) | ival; 843 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 844 per = OHCI_PERIODIC(ival); /* 90% periodic */ 845 OWRITE4(sc, OHCI_PERIODIC_START, per); 846 847 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 848 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 849 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 850 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 851 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 852 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 853 854 /* 855 * The AMD756 requires a delay before re-reading the register, 856 * otherwise it will occasionally report 0 ports. 857 */ 858 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 859 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 860 861 #ifdef OHCI_DEBUG 862 if (ohcidebug > 5) 863 ohci_dumpregs(sc); 864 #endif 865 866 /* Set up the bus struct. */ 867 sc->sc_bus.methods = &ohci_bus_methods; 868 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 869 870 #if defined(__NetBSD__) || defined(__OpenBSD__) 871 sc->sc_control = sc->sc_intre = 0; 872 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 873 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 874 #endif 875 876 usb_callout_init(sc->sc_tmo_rhsc); 877 878 return (USBD_NORMAL_COMPLETION); 879 880 bad5: 881 for (i = 0; i < OHCI_NO_EDS; i++) 882 ohci_free_sed(sc, sc->sc_eds[i]); 883 bad4: 884 ohci_free_sed(sc, sc->sc_isoc_head); 885 bad3: 886 ohci_free_sed(sc, sc->sc_ctrl_head); 887 bad2: 888 ohci_free_sed(sc, sc->sc_bulk_head); 889 bad1: 890 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 891 return (err); 892 } 893 894 usbd_status 895 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 896 { 897 #if defined(__NetBSD__) || defined(__OpenBSD__) 898 struct ohci_softc *sc = (struct ohci_softc *)bus; 899 #endif 900 901 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 902 } 903 904 void 905 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 906 { 907 #if defined(__NetBSD__) || defined(__OpenBSD__) 908 struct ohci_softc *sc = (struct ohci_softc *)bus; 909 #endif 910 911 usb_freemem(&sc->sc_bus, dma); 912 } 913 914 usbd_xfer_handle 915 ohci_allocx(struct usbd_bus *bus) 916 { 917 struct ohci_softc *sc = (struct ohci_softc *)bus; 918 usbd_xfer_handle xfer; 919 920 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 921 if (xfer != NULL) { 922 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 923 #ifdef DIAGNOSTIC 924 if (xfer->busy_free != XFER_FREE) { 925 printf("ohci_allocx: xfer=%p not free, 0x%08x\n", xfer, 926 xfer->busy_free); 927 } 928 #endif 929 } else { 930 xfer = malloc(sizeof(struct ohci_xfer), M_USB, M_NOWAIT); 931 } 932 if (xfer != NULL) { 933 memset(xfer, 0, sizeof (struct ohci_xfer)); 934 #ifdef DIAGNOSTIC 935 xfer->busy_free = XFER_BUSY; 936 #endif 937 } 938 return (xfer); 939 } 940 941 void 942 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 943 { 944 struct ohci_softc *sc = (struct ohci_softc *)bus; 945 946 #ifdef DIAGNOSTIC 947 if (xfer->busy_free != XFER_BUSY) { 948 printf("ohci_freex: xfer=%p not busy, 0x%08x\n", xfer, 949 xfer->busy_free); 950 return; 951 } 952 xfer->busy_free = XFER_FREE; 953 #endif 954 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 955 } 956 957 /* 958 * Shut down the controller when the system is going down. 959 */ 960 void 961 ohci_shutdown(void *v) 962 { 963 ohci_softc_t *sc = v; 964 965 DPRINTF(("ohci_shutdown: stopping the HC\n")); 966 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 967 } 968 969 /* 970 * Handle suspend/resume. 971 * 972 * We need to switch to polling mode here, because this routine is 973 * called from an intterupt context. This is all right since we 974 * are almost suspended anyway. 975 */ 976 void 977 ohci_power(int why, void *v) 978 { 979 ohci_softc_t *sc = v; 980 u_int32_t ctl; 981 int s; 982 983 #ifdef OHCI_DEBUG 984 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 985 ohci_dumpregs(sc); 986 #endif 987 988 s = splhardusb(); 989 switch (why) { 990 case PWR_SUSPEND: 991 case PWR_STANDBY: 992 sc->sc_bus.use_polling++; 993 ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK; 994 if (sc->sc_control == 0) { 995 /* 996 * Preserve register values, in case that APM BIOS 997 * does not recover them. 998 */ 999 sc->sc_control = ctl; 1000 sc->sc_intre = OREAD4(sc, OHCI_INTERRUPT_ENABLE); 1001 } 1002 ctl |= OHCI_HCFS_SUSPEND; 1003 OWRITE4(sc, OHCI_CONTROL, ctl); 1004 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 1005 sc->sc_bus.use_polling--; 1006 break; 1007 case PWR_RESUME: 1008 sc->sc_bus.use_polling++; 1009 /* Some broken BIOSes do not recover these values */ 1010 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 1011 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 1012 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 1013 if (sc->sc_intre) 1014 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, 1015 sc->sc_intre & (OHCI_ALL_INTRS | OHCI_MIE)); 1016 if (sc->sc_control) 1017 ctl = sc->sc_control; 1018 else 1019 ctl = OREAD4(sc, OHCI_CONTROL); 1020 ctl |= OHCI_HCFS_RESUME; 1021 OWRITE4(sc, OHCI_CONTROL, ctl); 1022 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 1023 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL; 1024 OWRITE4(sc, OHCI_CONTROL, ctl); 1025 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 1026 sc->sc_control = sc->sc_intre = 0; 1027 sc->sc_bus.use_polling--; 1028 break; 1029 case PWR_SOFTSUSPEND: 1030 case PWR_SOFTSTANDBY: 1031 case PWR_SOFTRESUME: 1032 break; 1033 } 1034 splx(s); 1035 } 1036 1037 #ifdef OHCI_DEBUG 1038 void 1039 ohci_dumpregs(ohci_softc_t *sc) 1040 { 1041 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 1042 OREAD4(sc, OHCI_REVISION), 1043 OREAD4(sc, OHCI_CONTROL), 1044 OREAD4(sc, OHCI_COMMAND_STATUS))); 1045 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 1046 OREAD4(sc, OHCI_INTERRUPT_STATUS), 1047 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 1048 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 1049 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 1050 OREAD4(sc, OHCI_HCCA), 1051 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 1052 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 1053 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 1054 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 1055 OREAD4(sc, OHCI_BULK_HEAD_ED), 1056 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1057 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1058 OREAD4(sc, OHCI_DONE_HEAD), 1059 OREAD4(sc, OHCI_FM_INTERVAL), 1060 OREAD4(sc, OHCI_FM_REMAINING))); 1061 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1062 OREAD4(sc, OHCI_FM_NUMBER), 1063 OREAD4(sc, OHCI_PERIODIC_START), 1064 OREAD4(sc, OHCI_LS_THRESHOLD))); 1065 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1066 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1067 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1068 OREAD4(sc, OHCI_RH_STATUS))); 1069 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1070 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1071 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1072 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1073 le32toh(sc->sc_hcca->hcca_frame_number), 1074 le32toh(sc->sc_hcca->hcca_done_head))); 1075 } 1076 #endif 1077 1078 Static int ohci_intr1(ohci_softc_t *); 1079 1080 int 1081 ohci_intr(void *p) 1082 { 1083 ohci_softc_t *sc = p; 1084 1085 if (sc == NULL || sc->sc_dying) 1086 return (0); 1087 1088 /* If we get an interrupt while polling, then just ignore it. */ 1089 if (sc->sc_bus.use_polling) { 1090 #ifdef DIAGNOSTIC 1091 printf("ohci_intr: ignored interrupt while polling\n"); 1092 #endif 1093 return (0); 1094 } 1095 1096 return (ohci_intr1(sc)); 1097 } 1098 1099 Static int 1100 ohci_intr1(ohci_softc_t *sc) 1101 { 1102 u_int32_t intrs, eintrs; 1103 ohci_physaddr_t done; 1104 1105 DPRINTFN(14,("ohci_intr1: enter\n")); 1106 1107 /* In case the interrupt occurs before initialization has completed. */ 1108 if (sc == NULL || sc->sc_hcca == NULL) { 1109 #ifdef DIAGNOSTIC 1110 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1111 #endif 1112 return (0); 1113 } 1114 1115 intrs = 0; 1116 done = le32toh(sc->sc_hcca->hcca_done_head); 1117 if (done != 0) { 1118 if (done & ~OHCI_DONE_INTRS) 1119 intrs = OHCI_WDH; 1120 if (done & OHCI_DONE_INTRS) 1121 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 1122 sc->sc_hcca->hcca_done_head = 0; 1123 } else 1124 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1125 1126 if (!intrs) 1127 return (0); 1128 1129 intrs &= ~OHCI_MIE; 1130 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1131 eintrs = intrs & sc->sc_eintrs; 1132 if (!eintrs) 1133 return (0); 1134 1135 sc->sc_bus.intr_context++; 1136 sc->sc_bus.no_intrs++; 1137 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1138 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1139 (u_int)eintrs)); 1140 1141 if (eintrs & OHCI_SO) { 1142 sc->sc_overrun_cnt++; 1143 if (usbd_ratecheck(&sc->sc_overrun_ntc)) { 1144 printf("%s: %u scheduling overruns\n", 1145 USBDEVNAME(sc->sc_bus.bdev), sc->sc_overrun_cnt); 1146 sc->sc_overrun_cnt = 0; 1147 } 1148 /* XXX do what */ 1149 eintrs &= ~OHCI_SO; 1150 } 1151 if (eintrs & OHCI_WDH) { 1152 ohci_add_done(sc, done &~ OHCI_DONE_INTRS); 1153 usb_schedsoftintr(&sc->sc_bus); 1154 eintrs &= ~OHCI_WDH; 1155 } 1156 if (eintrs & OHCI_RD) { 1157 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1158 /* XXX process resume detect */ 1159 } 1160 if (eintrs & OHCI_UE) { 1161 printf("%s: unrecoverable error, controller halted\n", 1162 USBDEVNAME(sc->sc_bus.bdev)); 1163 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1164 /* XXX what else */ 1165 } 1166 if (eintrs & OHCI_RHSC) { 1167 ohci_rhsc(sc, sc->sc_intrxfer); 1168 /* 1169 * Disable RHSC interrupt for now, because it will be 1170 * on until the port has been reset. 1171 */ 1172 ohci_rhsc_able(sc, 0); 1173 /* Do not allow RHSC interrupts > 1 per second */ 1174 usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc); 1175 eintrs &= ~OHCI_RHSC; 1176 } 1177 1178 sc->sc_bus.intr_context--; 1179 1180 if (eintrs != 0) { 1181 /* Block unprocessed interrupts. XXX */ 1182 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, eintrs); 1183 sc->sc_eintrs &= ~eintrs; 1184 printf("%s: blocking intrs 0x%x\n", 1185 USBDEVNAME(sc->sc_bus.bdev), eintrs); 1186 } 1187 1188 return (1); 1189 } 1190 1191 void 1192 ohci_rhsc_able(ohci_softc_t *sc, int on) 1193 { 1194 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1195 if (on) { 1196 sc->sc_eintrs |= OHCI_RHSC; 1197 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1198 } else { 1199 sc->sc_eintrs &= ~OHCI_RHSC; 1200 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1201 } 1202 } 1203 1204 void 1205 ohci_rhsc_enable(void *v_sc) 1206 { 1207 ohci_softc_t *sc = v_sc; 1208 int s; 1209 1210 s = splhardusb(); 1211 ohci_rhsc_able(sc, 1); 1212 splx(s); 1213 } 1214 1215 #ifdef OHCI_DEBUG 1216 char *ohci_cc_strs[] = { 1217 "NO_ERROR", 1218 "CRC", 1219 "BIT_STUFFING", 1220 "DATA_TOGGLE_MISMATCH", 1221 "STALL", 1222 "DEVICE_NOT_RESPONDING", 1223 "PID_CHECK_FAILURE", 1224 "UNEXPECTED_PID", 1225 "DATA_OVERRUN", 1226 "DATA_UNDERRUN", 1227 "BUFFER_OVERRUN", 1228 "BUFFER_UNDERRUN", 1229 "reserved", 1230 "reserved", 1231 "NOT_ACCESSED", 1232 "NOT_ACCESSED", 1233 }; 1234 #endif 1235 1236 void 1237 ohci_add_done(ohci_softc_t *sc, ohci_physaddr_t done) 1238 { 1239 ohci_soft_itd_t *sitd, *sidone, **ip; 1240 ohci_soft_td_t *std, *sdone, **p; 1241 1242 /* Reverse the done list. */ 1243 for (sdone = NULL, sidone = NULL; done != 0; ) { 1244 std = ohci_hash_find_td(sc, done); 1245 if (std != NULL) { 1246 std->dnext = sdone; 1247 done = le32toh(std->td.td_nexttd); 1248 sdone = std; 1249 DPRINTFN(10,("add TD %p\n", std)); 1250 continue; 1251 } 1252 sitd = ohci_hash_find_itd(sc, done); 1253 if (sitd != NULL) { 1254 sitd->dnext = sidone; 1255 done = le32toh(sitd->itd.itd_nextitd); 1256 sidone = sitd; 1257 DPRINTFN(5,("add ITD %p\n", sitd)); 1258 continue; 1259 } 1260 panic("ohci_add_done: addr 0x%08lx not found", (u_long)done); 1261 } 1262 1263 /* sdone & sidone now hold the done lists. */ 1264 /* Put them on the already processed lists. */ 1265 for (p = &sc->sc_sdone; *p != NULL; p = &(*p)->dnext) 1266 ; 1267 *p = sdone; 1268 for (ip = &sc->sc_sidone; *ip != NULL; ip = &(*ip)->dnext) 1269 ; 1270 *ip = sidone; 1271 } 1272 1273 void 1274 ohci_softintr(void *v) 1275 { 1276 ohci_softc_t *sc = v; 1277 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1278 ohci_soft_td_t *std, *sdone, *stdnext; 1279 usbd_xfer_handle xfer; 1280 struct ohci_pipe *opipe; 1281 int len, cc, s; 1282 int i, j, actlen, iframes, uedir; 1283 1284 DPRINTFN(10,("ohci_softintr: enter\n")); 1285 1286 sc->sc_bus.intr_context++; 1287 1288 s = splhardusb(); 1289 sdone = sc->sc_sdone; 1290 sc->sc_sdone = NULL; 1291 sidone = sc->sc_sidone; 1292 sc->sc_sidone = NULL; 1293 splx(s); 1294 1295 DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone)); 1296 1297 #ifdef OHCI_DEBUG 1298 if (ohcidebug > 10) { 1299 DPRINTF(("ohci_process_done: TD done:\n")); 1300 ohci_dump_tds(sdone); 1301 } 1302 #endif 1303 1304 for (std = sdone; std; std = stdnext) { 1305 xfer = std->xfer; 1306 stdnext = std->dnext; 1307 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1308 std, xfer, xfer ? xfer->hcpriv : 0)); 1309 if (xfer == NULL) { 1310 /* 1311 * xfer == NULL: There seems to be no xfer associated 1312 * with this TD. It is tailp that happened to end up on 1313 * the done queue. 1314 * Shouldn't happen, but some chips are broken(?). 1315 */ 1316 continue; 1317 } 1318 if (xfer->status == USBD_CANCELLED || 1319 xfer->status == USBD_TIMEOUT) { 1320 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1321 xfer)); 1322 /* Handled by abort routine. */ 1323 continue; 1324 } 1325 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1326 1327 len = std->len; 1328 if (std->td.td_cbp != 0) 1329 len -= le32toh(std->td.td_be) - 1330 le32toh(std->td.td_cbp) + 1; 1331 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", len, 1332 std->flags)); 1333 if (std->flags & OHCI_ADD_LEN) 1334 xfer->actlen += len; 1335 1336 cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags)); 1337 if (cc == OHCI_CC_NO_ERROR) { 1338 if (std->flags & OHCI_CALL_DONE) { 1339 xfer->status = USBD_NORMAL_COMPLETION; 1340 s = splusb(); 1341 usb_transfer_complete(xfer); 1342 splx(s); 1343 } 1344 ohci_free_std(sc, std); 1345 } else { 1346 /* 1347 * Endpoint is halted. First unlink all the TDs 1348 * belonging to the failed transfer, and then restart 1349 * the endpoint. 1350 */ 1351 ohci_soft_td_t *p, *n; 1352 opipe = (struct ohci_pipe *)xfer->pipe; 1353 1354 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1355 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1356 ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))])); 1357 1358 /* remove TDs */ 1359 for (p = std; p->xfer == xfer; p = n) { 1360 n = p->nexttd; 1361 ohci_free_std(sc, p); 1362 } 1363 1364 /* clear halt */ 1365 opipe->sed->ed.ed_headp = htole32(p->physaddr); 1366 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1367 1368 if (cc == OHCI_CC_STALL) 1369 xfer->status = USBD_STALLED; 1370 else 1371 xfer->status = USBD_IOERROR; 1372 s = splusb(); 1373 usb_transfer_complete(xfer); 1374 splx(s); 1375 } 1376 } 1377 1378 #ifdef OHCI_DEBUG 1379 if (ohcidebug > 10) { 1380 DPRINTF(("ohci_softintr: ITD done:\n")); 1381 ohci_dump_itds(sidone); 1382 } 1383 #endif 1384 1385 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1386 xfer = sitd->xfer; 1387 sitdnext = sitd->dnext; 1388 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1389 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1390 if (xfer == NULL) 1391 continue; 1392 if (xfer->status == USBD_CANCELLED || 1393 xfer->status == USBD_TIMEOUT) { 1394 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1395 xfer)); 1396 /* Handled by abort routine. */ 1397 continue; 1398 } 1399 #ifdef DIAGNOSTIC 1400 if (sitd->isdone) 1401 printf("ohci_softintr: sitd=%p is done\n", sitd); 1402 sitd->isdone = 1; 1403 #endif 1404 if (sitd->flags & OHCI_CALL_DONE) { 1405 ohci_soft_itd_t *next; 1406 1407 opipe = (struct ohci_pipe *)xfer->pipe; 1408 opipe->u.iso.inuse -= xfer->nframes; 1409 uedir = UE_GET_DIR(xfer->pipe->endpoint->edesc-> 1410 bEndpointAddress); 1411 xfer->status = USBD_NORMAL_COMPLETION; 1412 actlen = 0; 1413 for (i = 0, sitd = xfer->hcpriv;; 1414 sitd = next) { 1415 next = sitd->nextitd; 1416 if (OHCI_ITD_GET_CC(le32toh(sitd-> 1417 itd.itd_flags)) != OHCI_CC_NO_ERROR) 1418 xfer->status = USBD_IOERROR; 1419 /* For input, update frlengths with actual */ 1420 /* XXX anything necessary for output? */ 1421 if (uedir == UE_DIR_IN && 1422 xfer->status == USBD_NORMAL_COMPLETION) { 1423 iframes = OHCI_ITD_GET_FC(le32toh( 1424 sitd->itd.itd_flags)); 1425 for (j = 0; j < iframes; i++, j++) { 1426 len = le16toh(sitd-> 1427 itd.itd_offset[j]); 1428 len = 1429 (OHCI_ITD_PSW_GET_CC(len) == 1430 OHCI_CC_NOT_ACCESSED) ? 0 : 1431 OHCI_ITD_PSW_LENGTH(len); 1432 xfer->frlengths[i] = len; 1433 actlen += len; 1434 } 1435 } 1436 if (sitd->flags & OHCI_CALL_DONE) 1437 break; 1438 ohci_free_sitd(sc, sitd); 1439 } 1440 ohci_free_sitd(sc, sitd); 1441 if (uedir == UE_DIR_IN && 1442 xfer->status == USBD_NORMAL_COMPLETION) 1443 xfer->actlen = actlen; 1444 1445 s = splusb(); 1446 usb_transfer_complete(xfer); 1447 splx(s); 1448 } 1449 } 1450 1451 #ifdef USB_USE_SOFTINTR 1452 if (sc->sc_softwake) { 1453 sc->sc_softwake = 0; 1454 wakeup(&sc->sc_softwake); 1455 } 1456 #endif /* USB_USE_SOFTINTR */ 1457 1458 sc->sc_bus.intr_context--; 1459 DPRINTFN(10,("ohci_softintr: done:\n")); 1460 } 1461 1462 void 1463 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1464 { 1465 DPRINTFN(10,("ohci_device_ctrl_done: xfer=%p\n", xfer)); 1466 1467 #ifdef DIAGNOSTIC 1468 if (!(xfer->rqflags & URQ_REQUEST)) { 1469 panic("ohci_device_ctrl_done: not a request"); 1470 } 1471 #endif 1472 xfer->hcpriv = NULL; 1473 } 1474 1475 void 1476 ohci_device_intr_done(usbd_xfer_handle xfer) 1477 { 1478 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1479 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1480 ohci_soft_ed_t *sed = opipe->sed; 1481 ohci_soft_td_t *data, *tail; 1482 1483 1484 DPRINTFN(10,("ohci_device_intr_done: xfer=%p, actlen=%d\n", 1485 xfer, xfer->actlen)); 1486 1487 xfer->hcpriv = NULL; 1488 1489 if (xfer->pipe->repeat) { 1490 data = opipe->tail.td; 1491 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1492 if (tail == NULL) { 1493 xfer->status = USBD_NOMEM; 1494 return; 1495 } 1496 tail->xfer = NULL; 1497 1498 data->td.td_flags = htole32( 1499 OHCI_TD_IN | OHCI_TD_NOCC | 1500 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1501 if (xfer->flags & USBD_SHORT_XFER_OK) 1502 data->td.td_flags |= htole32(OHCI_TD_R); 1503 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf, 0)); 1504 data->nexttd = tail; 1505 data->td.td_nexttd = htole32(tail->physaddr); 1506 data->td.td_be = htole32(le32toh(data->td.td_cbp) + 1507 xfer->length - 1); 1508 data->len = xfer->length; 1509 data->xfer = xfer; 1510 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1511 xfer->hcpriv = data; 1512 xfer->actlen = 0; 1513 1514 sed->ed.ed_tailp = htole32(tail->physaddr); 1515 opipe->tail.td = tail; 1516 } 1517 } 1518 1519 void 1520 ohci_device_bulk_done(usbd_xfer_handle xfer) 1521 { 1522 DPRINTFN(10,("ohci_device_bulk_done: xfer=%p, actlen=%d\n", 1523 xfer, xfer->actlen)); 1524 1525 xfer->hcpriv = NULL; 1526 } 1527 1528 void 1529 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1530 { 1531 usbd_pipe_handle pipe; 1532 struct ohci_pipe *opipe; 1533 u_char *p; 1534 int i, m; 1535 int hstatus; 1536 1537 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1538 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1539 sc, xfer, hstatus)); 1540 1541 if (xfer == NULL) { 1542 /* Just ignore the change. */ 1543 return; 1544 } 1545 1546 pipe = xfer->pipe; 1547 opipe = (struct ohci_pipe *)pipe; 1548 1549 p = KERNADDR(&xfer->dmabuf, 0); 1550 m = min(sc->sc_noport, xfer->length * 8 - 1); 1551 memset(p, 0, xfer->length); 1552 for (i = 1; i <= m; i++) { 1553 /* Pick out CHANGE bits from the status reg. */ 1554 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1555 p[i/8] |= 1 << (i%8); 1556 } 1557 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1558 xfer->actlen = xfer->length; 1559 xfer->status = USBD_NORMAL_COMPLETION; 1560 1561 usb_transfer_complete(xfer); 1562 } 1563 1564 void 1565 ohci_root_intr_done(usbd_xfer_handle xfer) 1566 { 1567 xfer->hcpriv = NULL; 1568 } 1569 1570 void 1571 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1572 { 1573 xfer->hcpriv = NULL; 1574 } 1575 1576 /* 1577 * Wait here until controller claims to have an interrupt. 1578 * Then call ohci_intr and return. Use timeout to avoid waiting 1579 * too long. 1580 */ 1581 void 1582 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1583 { 1584 int timo = xfer->timeout; 1585 int usecs; 1586 u_int32_t intrs; 1587 1588 xfer->status = USBD_IN_PROGRESS; 1589 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 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 /* XXX This only needs to be done once, but it's too early in open. */ 1673 /* XXXX Should not touch ED here! */ 1674 sed->ed.ed_flags = htole32( 1675 (le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1676 OHCI_ED_SET_FA(addr) | 1677 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1678 1679 next = stat; 1680 1681 /* Set up data transaction */ 1682 if (len != 0) { 1683 ohci_soft_td_t *std = stat; 1684 1685 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1686 std, &stat); 1687 stat = stat->nexttd; /* point at free TD */ 1688 if (err) 1689 goto bad3; 1690 /* Start toggle at 1 and then use the carried toggle. */ 1691 std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK); 1692 std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1); 1693 } 1694 1695 memcpy(KERNADDR(&opipe->u.ctl.reqdma, 0), req, sizeof *req); 1696 1697 setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1698 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1699 setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma, 0)); 1700 setup->nexttd = next; 1701 setup->td.td_nexttd = htole32(next->physaddr); 1702 setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1); 1703 setup->len = 0; 1704 setup->xfer = xfer; 1705 setup->flags = 0; 1706 xfer->hcpriv = setup; 1707 1708 stat->td.td_flags = htole32( 1709 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1710 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1711 stat->td.td_cbp = 0; 1712 stat->nexttd = tail; 1713 stat->td.td_nexttd = htole32(tail->physaddr); 1714 stat->td.td_be = 0; 1715 stat->flags = OHCI_CALL_DONE; 1716 stat->len = 0; 1717 stat->xfer = xfer; 1718 1719 #ifdef OHCI_DEBUG 1720 if (ohcidebug > 5) { 1721 DPRINTF(("ohci_device_request:\n")); 1722 ohci_dump_ed(sed); 1723 ohci_dump_tds(setup); 1724 } 1725 #endif 1726 1727 /* Insert ED in schedule */ 1728 s = splusb(); 1729 sed->ed.ed_tailp = htole32(tail->physaddr); 1730 opipe->tail.td = tail; 1731 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1732 if (xfer->timeout && !sc->sc_bus.use_polling) { 1733 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1734 ohci_timeout, xfer); 1735 } 1736 splx(s); 1737 1738 #ifdef OHCI_DEBUG 1739 if (ohcidebug > 20) { 1740 delay(10000); 1741 DPRINTF(("ohci_device_request: status=%x\n", 1742 OREAD4(sc, OHCI_COMMAND_STATUS))); 1743 ohci_dumpregs(sc); 1744 printf("ctrl head:\n"); 1745 ohci_dump_ed(sc->sc_ctrl_head); 1746 printf("sed:\n"); 1747 ohci_dump_ed(sed); 1748 ohci_dump_tds(setup); 1749 } 1750 #endif 1751 1752 return (USBD_NORMAL_COMPLETION); 1753 1754 bad3: 1755 ohci_free_std(sc, tail); 1756 bad2: 1757 ohci_free_std(sc, stat); 1758 bad1: 1759 return (err); 1760 } 1761 1762 /* 1763 * Add an ED to the schedule. Called at splusb(). 1764 */ 1765 void 1766 ohci_add_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1767 { 1768 DPRINTFN(8,("ohci_add_ed: sed=%p head=%p\n", sed, head)); 1769 1770 SPLUSBCHECK; 1771 sed->next = head->next; 1772 sed->ed.ed_nexted = head->ed.ed_nexted; 1773 head->next = sed; 1774 head->ed.ed_nexted = htole32(sed->physaddr); 1775 } 1776 1777 /* 1778 * Remove an ED from the schedule. Called at splusb(). 1779 */ 1780 void 1781 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1782 { 1783 ohci_soft_ed_t *p; 1784 1785 SPLUSBCHECK; 1786 1787 /* XXX */ 1788 for (p = head; p != NULL && p->next != sed; p = p->next) 1789 ; 1790 if (p == NULL) 1791 panic("ohci_rem_ed: ED not found"); 1792 p->next = sed->next; 1793 p->ed.ed_nexted = sed->ed.ed_nexted; 1794 } 1795 1796 /* 1797 * When a transfer is completed the TD is added to the done queue by 1798 * the host controller. This queue is the processed by software. 1799 * Unfortunately the queue contains the physical address of the TD 1800 * and we have no simple way to translate this back to a kernel address. 1801 * To make the translation possible (and fast) we use a hash table of 1802 * TDs currently in the schedule. The physical address is used as the 1803 * hash value. 1804 */ 1805 1806 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1807 /* Called at splusb() */ 1808 void 1809 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1810 { 1811 int h = HASH(std->physaddr); 1812 1813 SPLUSBCHECK; 1814 1815 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1816 } 1817 1818 /* Called at splusb() */ 1819 void 1820 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1821 { 1822 SPLUSBCHECK; 1823 1824 LIST_REMOVE(std, hnext); 1825 } 1826 1827 ohci_soft_td_t * 1828 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1829 { 1830 int h = HASH(a); 1831 ohci_soft_td_t *std; 1832 1833 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1834 std != NULL; 1835 std = LIST_NEXT(std, hnext)) 1836 if (std->physaddr == a) 1837 return (std); 1838 return (NULL); 1839 } 1840 1841 /* Called at splusb() */ 1842 void 1843 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1844 { 1845 int h = HASH(sitd->physaddr); 1846 1847 SPLUSBCHECK; 1848 1849 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1850 sitd, (u_long)sitd->physaddr)); 1851 1852 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1853 } 1854 1855 /* Called at splusb() */ 1856 void 1857 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1858 { 1859 SPLUSBCHECK; 1860 1861 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1862 sitd, (u_long)sitd->physaddr)); 1863 1864 LIST_REMOVE(sitd, hnext); 1865 } 1866 1867 ohci_soft_itd_t * 1868 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1869 { 1870 int h = HASH(a); 1871 ohci_soft_itd_t *sitd; 1872 1873 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1874 sitd != NULL; 1875 sitd = LIST_NEXT(sitd, hnext)) 1876 if (sitd->physaddr == a) 1877 return (sitd); 1878 return (NULL); 1879 } 1880 1881 void 1882 ohci_timeout(void *addr) 1883 { 1884 struct ohci_xfer *oxfer = addr; 1885 struct ohci_pipe *opipe = (struct ohci_pipe *)oxfer->xfer.pipe; 1886 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1887 1888 DPRINTF(("ohci_timeout: oxfer=%p\n", oxfer)); 1889 1890 if (sc->sc_dying) { 1891 ohci_abort_xfer(&oxfer->xfer, USBD_TIMEOUT); 1892 return; 1893 } 1894 1895 /* Execute the abort in a process context. */ 1896 usb_init_task(&oxfer->abort_task, ohci_timeout_task, addr); 1897 usb_add_task(oxfer->xfer.pipe->device, &oxfer->abort_task); 1898 } 1899 1900 void 1901 ohci_timeout_task(void *addr) 1902 { 1903 usbd_xfer_handle xfer = addr; 1904 int s; 1905 1906 DPRINTF(("ohci_timeout_task: xfer=%p\n", xfer)); 1907 1908 s = splusb(); 1909 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1910 splx(s); 1911 } 1912 1913 #ifdef OHCI_DEBUG 1914 void 1915 ohci_dump_tds(ohci_soft_td_t *std) 1916 { 1917 for (; std; std = std->nexttd) 1918 ohci_dump_td(std); 1919 } 1920 1921 void 1922 ohci_dump_td(ohci_soft_td_t *std) 1923 { 1924 char sbuf[128]; 1925 1926 bitmask_snprintf((u_int32_t)le32toh(std->td.td_flags), 1927 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1928 sbuf, sizeof(sbuf)); 1929 1930 printf("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1931 "nexttd=0x%08lx be=0x%08lx\n", 1932 std, (u_long)std->physaddr, sbuf, 1933 OHCI_TD_GET_DI(le32toh(std->td.td_flags)), 1934 OHCI_TD_GET_EC(le32toh(std->td.td_flags)), 1935 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1936 (u_long)le32toh(std->td.td_cbp), 1937 (u_long)le32toh(std->td.td_nexttd), 1938 (u_long)le32toh(std->td.td_be)); 1939 } 1940 1941 void 1942 ohci_dump_itd(ohci_soft_itd_t *sitd) 1943 { 1944 int i; 1945 1946 printf("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1947 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1948 sitd, (u_long)sitd->physaddr, 1949 OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)), 1950 OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)), 1951 OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)), 1952 OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)), 1953 (u_long)le32toh(sitd->itd.itd_bp0), 1954 (u_long)le32toh(sitd->itd.itd_nextitd), 1955 (u_long)le32toh(sitd->itd.itd_be)); 1956 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1957 printf("offs[%d]=0x%04x ", i, 1958 (u_int)le16toh(sitd->itd.itd_offset[i])); 1959 printf("\n"); 1960 } 1961 1962 void 1963 ohci_dump_itds(ohci_soft_itd_t *sitd) 1964 { 1965 for (; sitd; sitd = sitd->nextitd) 1966 ohci_dump_itd(sitd); 1967 } 1968 1969 void 1970 ohci_dump_ed(ohci_soft_ed_t *sed) 1971 { 1972 char sbuf[128], sbuf2[128]; 1973 1974 bitmask_snprintf((u_int32_t)le32toh(sed->ed.ed_flags), 1975 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1976 sbuf, sizeof(sbuf)); 1977 bitmask_snprintf((u_int32_t)le32toh(sed->ed.ed_headp), 1978 "\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2)); 1979 1980 printf("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d flags=%s\ntailp=0x%08lx " 1981 "headflags=%s headp=0x%08lx nexted=0x%08lx\n", 1982 sed, (u_long)sed->physaddr, 1983 OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)), 1984 OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)), 1985 OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), sbuf, 1986 (u_long)le32toh(sed->ed.ed_tailp), sbuf2, 1987 (u_long)le32toh(sed->ed.ed_headp), 1988 (u_long)le32toh(sed->ed.ed_nexted)); 1989 } 1990 #endif 1991 1992 usbd_status 1993 ohci_open(usbd_pipe_handle pipe) 1994 { 1995 usbd_device_handle dev = pipe->device; 1996 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1997 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1998 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1999 u_int8_t addr = dev->address; 2000 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 2001 ohci_soft_ed_t *sed; 2002 ohci_soft_td_t *std; 2003 ohci_soft_itd_t *sitd; 2004 ohci_physaddr_t tdphys; 2005 u_int32_t fmt; 2006 usbd_status err; 2007 int s; 2008 int ival; 2009 2010 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2011 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 2012 2013 if (sc->sc_dying) 2014 return (USBD_IOERROR); 2015 2016 std = NULL; 2017 sed = NULL; 2018 2019 if (addr == sc->sc_addr) { 2020 switch (ed->bEndpointAddress) { 2021 case USB_CONTROL_ENDPOINT: 2022 pipe->methods = &ohci_root_ctrl_methods; 2023 break; 2024 case UE_DIR_IN | OHCI_INTR_ENDPT: 2025 pipe->methods = &ohci_root_intr_methods; 2026 break; 2027 default: 2028 return (USBD_INVAL); 2029 } 2030 } else { 2031 sed = ohci_alloc_sed(sc); 2032 if (sed == NULL) 2033 goto bad0; 2034 opipe->sed = sed; 2035 if (xfertype == UE_ISOCHRONOUS) { 2036 sitd = ohci_alloc_sitd(sc); 2037 if (sitd == NULL) 2038 goto bad1; 2039 opipe->tail.itd = sitd; 2040 tdphys = sitd->physaddr; 2041 fmt = OHCI_ED_FORMAT_ISO; 2042 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 2043 fmt |= OHCI_ED_DIR_IN; 2044 else 2045 fmt |= OHCI_ED_DIR_OUT; 2046 } else { 2047 std = ohci_alloc_std(sc); 2048 if (std == NULL) 2049 goto bad1; 2050 opipe->tail.td = std; 2051 tdphys = std->physaddr; 2052 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 2053 } 2054 sed->ed.ed_flags = htole32( 2055 OHCI_ED_SET_FA(addr) | 2056 OHCI_ED_SET_EN(ed->bEndpointAddress) | 2057 (dev->speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) | 2058 fmt | 2059 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 2060 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 2061 2062 switch (xfertype) { 2063 case UE_CONTROL: 2064 pipe->methods = &ohci_device_ctrl_methods; 2065 err = usb_allocmem(&sc->sc_bus, 2066 sizeof(usb_device_request_t), 2067 0, &opipe->u.ctl.reqdma); 2068 if (err) 2069 goto bad; 2070 s = splusb(); 2071 ohci_add_ed(sed, sc->sc_ctrl_head); 2072 splx(s); 2073 break; 2074 case UE_INTERRUPT: 2075 pipe->methods = &ohci_device_intr_methods; 2076 ival = pipe->interval; 2077 if (ival == USBD_DEFAULT_INTERVAL) 2078 ival = ed->bInterval; 2079 return (ohci_device_setintr(sc, opipe, ival)); 2080 case UE_ISOCHRONOUS: 2081 pipe->methods = &ohci_device_isoc_methods; 2082 return (ohci_setup_isoc(pipe)); 2083 case UE_BULK: 2084 pipe->methods = &ohci_device_bulk_methods; 2085 s = splusb(); 2086 ohci_add_ed(sed, sc->sc_bulk_head); 2087 splx(s); 2088 break; 2089 } 2090 } 2091 return (USBD_NORMAL_COMPLETION); 2092 2093 bad: 2094 if (std != NULL) 2095 ohci_free_std(sc, std); 2096 bad1: 2097 if (sed != NULL) 2098 ohci_free_sed(sc, sed); 2099 bad0: 2100 return (USBD_NOMEM); 2101 2102 } 2103 2104 /* 2105 * Close a reqular pipe. 2106 * Assumes that there are no pending transactions. 2107 */ 2108 void 2109 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 2110 { 2111 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2112 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2113 ohci_soft_ed_t *sed = opipe->sed; 2114 int s; 2115 2116 s = splusb(); 2117 #ifdef DIAGNOSTIC 2118 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 2119 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2120 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) { 2121 ohci_soft_td_t *std; 2122 std = ohci_hash_find_td(sc, le32toh(sed->ed.ed_headp)); 2123 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 2124 "tl=0x%x pipe=%p, std=%p\n", sed, 2125 (int)le32toh(sed->ed.ed_headp), 2126 (int)le32toh(sed->ed.ed_tailp), 2127 pipe, std); 2128 #ifdef USB_DEBUG 2129 usbd_dump_pipe(&opipe->pipe); 2130 #endif 2131 #ifdef OHCI_DEBUG 2132 ohci_dump_ed(sed); 2133 if (std) 2134 ohci_dump_td(std); 2135 #endif 2136 usb_delay_ms(&sc->sc_bus, 2); 2137 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2138 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2139 printf("ohci_close_pipe: pipe still not empty\n"); 2140 } 2141 #endif 2142 ohci_rem_ed(sed, head); 2143 /* Make sure the host controller is not touching this ED */ 2144 usb_delay_ms(&sc->sc_bus, 1); 2145 splx(s); 2146 ohci_free_sed(sc, opipe->sed); 2147 } 2148 2149 /* 2150 * Abort a device request. 2151 * If this routine is called at splusb() it guarantees that the request 2152 * will be removed from the hardware scheduling and that the callback 2153 * for it will be called with USBD_CANCELLED status. 2154 * It's impossible to guarantee that the requested transfer will not 2155 * have happened since the hardware runs concurrently. 2156 * If the transaction has already happened we rely on the ordinary 2157 * interrupt processing to process it. 2158 */ 2159 void 2160 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2161 { 2162 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2163 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2164 ohci_soft_ed_t *sed = opipe->sed; 2165 ohci_soft_td_t *p, *n; 2166 ohci_physaddr_t headp; 2167 int s, hit; 2168 2169 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p sed=%p\n", xfer, opipe,sed)); 2170 2171 if (sc->sc_dying) { 2172 /* If we're dying, just do the software part. */ 2173 s = splusb(); 2174 xfer->status = status; /* make software ignore it */ 2175 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2176 usb_transfer_complete(xfer); 2177 splx(s); 2178 } 2179 2180 if (xfer->device->bus->intr_context || !curproc) 2181 panic("ohci_abort_xfer: not in process context"); 2182 2183 /* 2184 * Step 1: Make interrupt routine and hardware ignore xfer. 2185 */ 2186 s = splusb(); 2187 xfer->status = status; /* make software ignore it */ 2188 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2189 splx(s); 2190 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2191 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 2192 2193 /* 2194 * Step 2: Wait until we know hardware has finished any possible 2195 * use of the xfer. Also make sure the soft interrupt routine 2196 * has run. 2197 */ 2198 usb_delay_ms(opipe->pipe.device->bus, 20); /* Hardware finishes in 1ms */ 2199 s = splusb(); 2200 #ifdef USB_USE_SOFTINTR 2201 sc->sc_softwake = 1; 2202 #endif /* USB_USE_SOFTINTR */ 2203 usb_schedsoftintr(&sc->sc_bus); 2204 #ifdef USB_USE_SOFTINTR 2205 tsleep(&sc->sc_softwake, PZERO, "ohciab", 0); 2206 #endif /* USB_USE_SOFTINTR */ 2207 splx(s); 2208 2209 /* 2210 * Step 3: Remove any vestiges of the xfer from the hardware. 2211 * The complication here is that the hardware may have executed 2212 * beyond the xfer we're trying to abort. So as we're scanning 2213 * the TDs of this xfer we check if the hardware points to 2214 * any of them. 2215 */ 2216 s = splusb(); /* XXX why? */ 2217 p = xfer->hcpriv; 2218 #ifdef DIAGNOSTIC 2219 if (p == NULL) { 2220 splx(s); 2221 printf("ohci_abort_xfer: hcpriv is NULL\n"); 2222 return; 2223 } 2224 #endif 2225 #ifdef OHCI_DEBUG 2226 if (ohcidebug > 1) { 2227 DPRINTF(("ohci_abort_xfer: sed=\n")); 2228 ohci_dump_ed(sed); 2229 ohci_dump_tds(p); 2230 } 2231 #endif 2232 headp = le32toh(sed->ed.ed_headp) & OHCI_HEADMASK; 2233 hit = 0; 2234 for (; p->xfer == xfer; p = n) { 2235 hit |= headp == p->physaddr; 2236 n = p->nexttd; 2237 ohci_free_std(sc, p); 2238 } 2239 /* Zap headp register if hardware pointed inside the xfer. */ 2240 if (hit) { 2241 DPRINTFN(1,("ohci_abort_xfer: set hd=0x08%x, tl=0x%08x\n", 2242 (int)p->physaddr, (int)le32toh(sed->ed.ed_tailp))); 2243 sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */ 2244 } else { 2245 DPRINTFN(1,("ohci_abort_xfer: no hit\n")); 2246 } 2247 2248 /* 2249 * Step 4: Turn on hardware again. 2250 */ 2251 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 2252 2253 /* 2254 * Step 5: Execute callback. 2255 */ 2256 usb_transfer_complete(xfer); 2257 2258 splx(s); 2259 } 2260 2261 /* 2262 * Data structures and routines to emulate the root hub. 2263 */ 2264 Static usb_device_descriptor_t ohci_devd = { 2265 USB_DEVICE_DESCRIPTOR_SIZE, 2266 UDESC_DEVICE, /* type */ 2267 {0x00, 0x01}, /* USB version */ 2268 UDCLASS_HUB, /* class */ 2269 UDSUBCLASS_HUB, /* subclass */ 2270 UDPROTO_FSHUB, 2271 64, /* max packet */ 2272 {0},{0},{0x00,0x01}, /* device id */ 2273 1,2,0, /* string indicies */ 2274 1 /* # of configurations */ 2275 }; 2276 2277 Static usb_config_descriptor_t ohci_confd = { 2278 USB_CONFIG_DESCRIPTOR_SIZE, 2279 UDESC_CONFIG, 2280 {USB_CONFIG_DESCRIPTOR_SIZE + 2281 USB_INTERFACE_DESCRIPTOR_SIZE + 2282 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2283 1, 2284 1, 2285 0, 2286 UC_SELF_POWERED, 2287 0 /* max power */ 2288 }; 2289 2290 Static usb_interface_descriptor_t ohci_ifcd = { 2291 USB_INTERFACE_DESCRIPTOR_SIZE, 2292 UDESC_INTERFACE, 2293 0, 2294 0, 2295 1, 2296 UICLASS_HUB, 2297 UISUBCLASS_HUB, 2298 UIPROTO_FSHUB, 2299 0 2300 }; 2301 2302 Static usb_endpoint_descriptor_t ohci_endpd = { 2303 USB_ENDPOINT_DESCRIPTOR_SIZE, 2304 UDESC_ENDPOINT, 2305 UE_DIR_IN | OHCI_INTR_ENDPT, 2306 UE_INTERRUPT, 2307 {8, 0}, /* max packet */ 2308 255 2309 }; 2310 2311 Static usb_hub_descriptor_t ohci_hubd = { 2312 USB_HUB_DESCRIPTOR_SIZE, 2313 UDESC_HUB, 2314 0, 2315 {0,0}, 2316 0, 2317 0, 2318 {0}, 2319 }; 2320 2321 Static int 2322 ohci_str(usb_string_descriptor_t *p, int l, const char *s) 2323 { 2324 int i; 2325 2326 if (l == 0) 2327 return (0); 2328 p->bLength = 2 * strlen(s) + 2; 2329 if (l == 1) 2330 return (1); 2331 p->bDescriptorType = UDESC_STRING; 2332 l -= 2; 2333 for (i = 0; s[i] && l > 1; i++, l -= 2) 2334 USETW2(p->bString[i], 0, s[i]); 2335 return (2*i+2); 2336 } 2337 2338 /* 2339 * Simulate a hardware hub by handling all the necessary requests. 2340 */ 2341 Static usbd_status 2342 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2343 { 2344 usbd_status err; 2345 2346 /* Insert last in queue. */ 2347 err = usb_insert_transfer(xfer); 2348 if (err) 2349 return (err); 2350 2351 /* Pipe isn't running, start first */ 2352 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2353 } 2354 2355 Static usbd_status 2356 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2357 { 2358 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2359 usb_device_request_t *req; 2360 void *buf = NULL; 2361 int port, i; 2362 int s, len, value, index, l, totlen = 0; 2363 usb_port_status_t ps; 2364 usb_hub_descriptor_t hubd; 2365 usbd_status err; 2366 u_int32_t v; 2367 2368 if (sc->sc_dying) 2369 return (USBD_IOERROR); 2370 2371 #ifdef DIAGNOSTIC 2372 if (!(xfer->rqflags & URQ_REQUEST)) 2373 /* XXX panic */ 2374 return (USBD_INVAL); 2375 #endif 2376 req = &xfer->request; 2377 2378 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2379 req->bmRequestType, req->bRequest)); 2380 2381 len = UGETW(req->wLength); 2382 value = UGETW(req->wValue); 2383 index = UGETW(req->wIndex); 2384 2385 if (len != 0) 2386 buf = KERNADDR(&xfer->dmabuf, 0); 2387 2388 #define C(x,y) ((x) | ((y) << 8)) 2389 switch(C(req->bRequest, req->bmRequestType)) { 2390 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2391 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2392 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2393 /* 2394 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2395 * for the integrated root hub. 2396 */ 2397 break; 2398 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2399 if (len > 0) { 2400 *(u_int8_t *)buf = sc->sc_conf; 2401 totlen = 1; 2402 } 2403 break; 2404 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2405 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2406 switch(value >> 8) { 2407 case UDESC_DEVICE: 2408 if ((value & 0xff) != 0) { 2409 err = USBD_IOERROR; 2410 goto ret; 2411 } 2412 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2413 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2414 memcpy(buf, &ohci_devd, l); 2415 break; 2416 case UDESC_CONFIG: 2417 if ((value & 0xff) != 0) { 2418 err = USBD_IOERROR; 2419 goto ret; 2420 } 2421 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2422 memcpy(buf, &ohci_confd, l); 2423 buf = (char *)buf + l; 2424 len -= l; 2425 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2426 totlen += l; 2427 memcpy(buf, &ohci_ifcd, l); 2428 buf = (char *)buf + l; 2429 len -= l; 2430 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2431 totlen += l; 2432 memcpy(buf, &ohci_endpd, l); 2433 break; 2434 case UDESC_STRING: 2435 if (len == 0) 2436 break; 2437 *(u_int8_t *)buf = 0; 2438 totlen = 1; 2439 switch (value & 0xff) { 2440 case 1: /* Vendor */ 2441 totlen = ohci_str(buf, len, sc->sc_vendor); 2442 break; 2443 case 2: /* Product */ 2444 totlen = ohci_str(buf, len, "OHCI root hub"); 2445 break; 2446 } 2447 break; 2448 default: 2449 err = USBD_IOERROR; 2450 goto ret; 2451 } 2452 break; 2453 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2454 if (len > 0) { 2455 *(u_int8_t *)buf = 0; 2456 totlen = 1; 2457 } 2458 break; 2459 case C(UR_GET_STATUS, UT_READ_DEVICE): 2460 if (len > 1) { 2461 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2462 totlen = 2; 2463 } 2464 break; 2465 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2466 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2467 if (len > 1) { 2468 USETW(((usb_status_t *)buf)->wStatus, 0); 2469 totlen = 2; 2470 } 2471 break; 2472 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2473 if (value >= USB_MAX_DEVICES) { 2474 err = USBD_IOERROR; 2475 goto ret; 2476 } 2477 sc->sc_addr = value; 2478 break; 2479 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2480 if (value != 0 && value != 1) { 2481 err = USBD_IOERROR; 2482 goto ret; 2483 } 2484 sc->sc_conf = value; 2485 break; 2486 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2487 break; 2488 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2489 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2490 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2491 err = USBD_IOERROR; 2492 goto ret; 2493 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2494 break; 2495 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2496 break; 2497 /* Hub requests */ 2498 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2499 break; 2500 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2501 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2502 "port=%d feature=%d\n", 2503 index, value)); 2504 if (index < 1 || index > sc->sc_noport) { 2505 err = USBD_IOERROR; 2506 goto ret; 2507 } 2508 port = OHCI_RH_PORT_STATUS(index); 2509 switch(value) { 2510 case UHF_PORT_ENABLE: 2511 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2512 break; 2513 case UHF_PORT_SUSPEND: 2514 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2515 break; 2516 case UHF_PORT_POWER: 2517 /* Yes, writing to the LOW_SPEED bit clears power. */ 2518 OWRITE4(sc, port, UPS_LOW_SPEED); 2519 break; 2520 case UHF_C_PORT_CONNECTION: 2521 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2522 break; 2523 case UHF_C_PORT_ENABLE: 2524 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2525 break; 2526 case UHF_C_PORT_SUSPEND: 2527 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2528 break; 2529 case UHF_C_PORT_OVER_CURRENT: 2530 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2531 break; 2532 case UHF_C_PORT_RESET: 2533 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2534 break; 2535 default: 2536 err = USBD_IOERROR; 2537 goto ret; 2538 } 2539 switch(value) { 2540 case UHF_C_PORT_CONNECTION: 2541 case UHF_C_PORT_ENABLE: 2542 case UHF_C_PORT_SUSPEND: 2543 case UHF_C_PORT_OVER_CURRENT: 2544 case UHF_C_PORT_RESET: 2545 /* Enable RHSC interrupt if condition is cleared. */ 2546 if ((OREAD4(sc, port) >> 16) == 0) 2547 ohci_rhsc_able(sc, 1); 2548 break; 2549 default: 2550 break; 2551 } 2552 break; 2553 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2554 if (value != 0) { 2555 err = USBD_IOERROR; 2556 goto ret; 2557 } 2558 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2559 hubd = ohci_hubd; 2560 hubd.bNbrPorts = sc->sc_noport; 2561 USETW(hubd.wHubCharacteristics, 2562 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2563 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2564 /* XXX overcurrent */ 2565 ); 2566 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2567 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2568 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2569 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2570 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2571 l = min(len, hubd.bDescLength); 2572 totlen = l; 2573 memcpy(buf, &hubd, l); 2574 break; 2575 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2576 if (len != 4) { 2577 err = USBD_IOERROR; 2578 goto ret; 2579 } 2580 memset(buf, 0, len); /* ? XXX */ 2581 totlen = len; 2582 break; 2583 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2584 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2585 index)); 2586 if (index < 1 || index > sc->sc_noport) { 2587 err = USBD_IOERROR; 2588 goto ret; 2589 } 2590 if (len != 4) { 2591 err = USBD_IOERROR; 2592 goto ret; 2593 } 2594 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2595 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2596 v)); 2597 USETW(ps.wPortStatus, v); 2598 USETW(ps.wPortChange, v >> 16); 2599 l = min(len, sizeof ps); 2600 memcpy(buf, &ps, l); 2601 totlen = l; 2602 break; 2603 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2604 err = USBD_IOERROR; 2605 goto ret; 2606 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2607 break; 2608 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2609 if (index < 1 || index > sc->sc_noport) { 2610 err = USBD_IOERROR; 2611 goto ret; 2612 } 2613 port = OHCI_RH_PORT_STATUS(index); 2614 switch(value) { 2615 case UHF_PORT_ENABLE: 2616 OWRITE4(sc, port, UPS_PORT_ENABLED); 2617 break; 2618 case UHF_PORT_SUSPEND: 2619 OWRITE4(sc, port, UPS_SUSPEND); 2620 break; 2621 case UHF_PORT_RESET: 2622 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2623 index)); 2624 OWRITE4(sc, port, UPS_RESET); 2625 for (i = 0; i < 5; i++) { 2626 usb_delay_ms(&sc->sc_bus, 2627 USB_PORT_ROOT_RESET_DELAY); 2628 if (sc->sc_dying) { 2629 err = USBD_IOERROR; 2630 goto ret; 2631 } 2632 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2633 break; 2634 } 2635 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2636 index, OREAD4(sc, port))); 2637 break; 2638 case UHF_PORT_POWER: 2639 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2640 "%d\n", index)); 2641 OWRITE4(sc, port, UPS_PORT_POWER); 2642 break; 2643 default: 2644 err = USBD_IOERROR; 2645 goto ret; 2646 } 2647 break; 2648 default: 2649 err = USBD_IOERROR; 2650 goto ret; 2651 } 2652 xfer->actlen = totlen; 2653 err = USBD_NORMAL_COMPLETION; 2654 ret: 2655 xfer->status = err; 2656 s = splusb(); 2657 usb_transfer_complete(xfer); 2658 splx(s); 2659 return (USBD_IN_PROGRESS); 2660 } 2661 2662 /* Abort a root control request. */ 2663 Static void 2664 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2665 { 2666 /* Nothing to do, all transfers are synchronous. */ 2667 } 2668 2669 /* Close the root pipe. */ 2670 Static void 2671 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2672 { 2673 DPRINTF(("ohci_root_ctrl_close\n")); 2674 /* Nothing to do. */ 2675 } 2676 2677 Static usbd_status 2678 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2679 { 2680 usbd_status err; 2681 2682 /* Insert last in queue. */ 2683 err = usb_insert_transfer(xfer); 2684 if (err) 2685 return (err); 2686 2687 /* Pipe isn't running, start first */ 2688 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2689 } 2690 2691 Static usbd_status 2692 ohci_root_intr_start(usbd_xfer_handle xfer) 2693 { 2694 usbd_pipe_handle pipe = xfer->pipe; 2695 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2696 2697 if (sc->sc_dying) 2698 return (USBD_IOERROR); 2699 2700 sc->sc_intrxfer = xfer; 2701 2702 return (USBD_IN_PROGRESS); 2703 } 2704 2705 /* Abort a root interrupt request. */ 2706 Static void 2707 ohci_root_intr_abort(usbd_xfer_handle xfer) 2708 { 2709 int s; 2710 2711 if (xfer->pipe->intrxfer == xfer) { 2712 DPRINTF(("ohci_root_intr_abort: remove\n")); 2713 xfer->pipe->intrxfer = NULL; 2714 } 2715 xfer->status = USBD_CANCELLED; 2716 s = splusb(); 2717 usb_transfer_complete(xfer); 2718 splx(s); 2719 } 2720 2721 /* Close the root pipe. */ 2722 Static void 2723 ohci_root_intr_close(usbd_pipe_handle pipe) 2724 { 2725 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2726 2727 DPRINTF(("ohci_root_intr_close\n")); 2728 2729 sc->sc_intrxfer = NULL; 2730 } 2731 2732 /************************/ 2733 2734 Static usbd_status 2735 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2736 { 2737 usbd_status err; 2738 2739 /* Insert last in queue. */ 2740 err = usb_insert_transfer(xfer); 2741 if (err) 2742 return (err); 2743 2744 /* Pipe isn't running, start first */ 2745 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2746 } 2747 2748 Static usbd_status 2749 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2750 { 2751 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2752 usbd_status err; 2753 2754 if (sc->sc_dying) 2755 return (USBD_IOERROR); 2756 2757 #ifdef DIAGNOSTIC 2758 if (!(xfer->rqflags & URQ_REQUEST)) { 2759 /* XXX panic */ 2760 printf("ohci_device_ctrl_transfer: not a request\n"); 2761 return (USBD_INVAL); 2762 } 2763 #endif 2764 2765 err = ohci_device_request(xfer); 2766 if (err) 2767 return (err); 2768 2769 if (sc->sc_bus.use_polling) 2770 ohci_waitintr(sc, xfer); 2771 return (USBD_IN_PROGRESS); 2772 } 2773 2774 /* Abort a device control request. */ 2775 Static void 2776 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2777 { 2778 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2779 ohci_abort_xfer(xfer, USBD_CANCELLED); 2780 } 2781 2782 /* Close a device control pipe. */ 2783 Static void 2784 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2785 { 2786 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2787 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2788 2789 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2790 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2791 ohci_free_std(sc, opipe->tail.td); 2792 } 2793 2794 /************************/ 2795 2796 Static void 2797 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2798 { 2799 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2800 2801 opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY); 2802 } 2803 2804 Static void 2805 ohci_noop(usbd_pipe_handle pipe) 2806 { 2807 } 2808 2809 Static usbd_status 2810 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2811 { 2812 usbd_status err; 2813 2814 /* Insert last in queue. */ 2815 err = usb_insert_transfer(xfer); 2816 if (err) 2817 return (err); 2818 2819 /* Pipe isn't running, start first */ 2820 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2821 } 2822 2823 Static usbd_status 2824 ohci_device_bulk_start(usbd_xfer_handle xfer) 2825 { 2826 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2827 usbd_device_handle dev = opipe->pipe.device; 2828 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2829 int addr = dev->address; 2830 ohci_soft_td_t *data, *tail, *tdp; 2831 ohci_soft_ed_t *sed; 2832 int s, len, isread, endpt; 2833 usbd_status err; 2834 2835 if (sc->sc_dying) 2836 return (USBD_IOERROR); 2837 2838 #ifdef DIAGNOSTIC 2839 if (xfer->rqflags & URQ_REQUEST) { 2840 /* XXX panic */ 2841 printf("ohci_device_bulk_start: a request\n"); 2842 return (USBD_INVAL); 2843 } 2844 #endif 2845 2846 len = xfer->length; 2847 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2848 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2849 sed = opipe->sed; 2850 2851 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2852 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2853 endpt)); 2854 2855 opipe->u.bulk.isread = isread; 2856 opipe->u.bulk.length = len; 2857 2858 /* Update device address */ 2859 sed->ed.ed_flags = htole32( 2860 (le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2861 OHCI_ED_SET_FA(addr)); 2862 2863 /* Allocate a chain of new TDs (including a new tail). */ 2864 data = opipe->tail.td; 2865 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2866 data, &tail); 2867 /* We want interrupt at the end of the transfer. */ 2868 tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK); 2869 tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1)); 2870 tail->flags |= OHCI_CALL_DONE; 2871 tail = tail->nexttd; /* point at sentinel */ 2872 if (err) 2873 return (err); 2874 2875 tail->xfer = NULL; 2876 xfer->hcpriv = data; 2877 2878 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2879 "td_cbp=0x%08x td_be=0x%08x\n", 2880 (int)le32toh(sed->ed.ed_flags), 2881 (int)le32toh(data->td.td_flags), 2882 (int)le32toh(data->td.td_cbp), 2883 (int)le32toh(data->td.td_be))); 2884 2885 #ifdef OHCI_DEBUG 2886 if (ohcidebug > 5) { 2887 ohci_dump_ed(sed); 2888 ohci_dump_tds(data); 2889 } 2890 #endif 2891 2892 /* Insert ED in schedule */ 2893 s = splusb(); 2894 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2895 tdp->xfer = xfer; 2896 } 2897 sed->ed.ed_tailp = htole32(tail->physaddr); 2898 opipe->tail.td = tail; 2899 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2900 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2901 if (xfer->timeout && !sc->sc_bus.use_polling) { 2902 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2903 ohci_timeout, xfer); 2904 } 2905 2906 #if 0 2907 /* This goes wrong if we are too slow. */ 2908 if (ohcidebug > 10) { 2909 delay(10000); 2910 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2911 OREAD4(sc, OHCI_COMMAND_STATUS))); 2912 ohci_dump_ed(sed); 2913 ohci_dump_tds(data); 2914 } 2915 #endif 2916 2917 splx(s); 2918 2919 return (USBD_IN_PROGRESS); 2920 } 2921 2922 Static void 2923 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2924 { 2925 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2926 ohci_abort_xfer(xfer, USBD_CANCELLED); 2927 } 2928 2929 /* 2930 * Close a device bulk pipe. 2931 */ 2932 Static void 2933 ohci_device_bulk_close(usbd_pipe_handle pipe) 2934 { 2935 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2936 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2937 2938 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2939 ohci_close_pipe(pipe, sc->sc_bulk_head); 2940 ohci_free_std(sc, opipe->tail.td); 2941 } 2942 2943 /************************/ 2944 2945 Static usbd_status 2946 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2947 { 2948 usbd_status err; 2949 2950 /* Insert last in queue. */ 2951 err = usb_insert_transfer(xfer); 2952 if (err) 2953 return (err); 2954 2955 /* Pipe isn't running, start first */ 2956 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2957 } 2958 2959 Static usbd_status 2960 ohci_device_intr_start(usbd_xfer_handle xfer) 2961 { 2962 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2963 usbd_device_handle dev = opipe->pipe.device; 2964 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2965 ohci_soft_ed_t *sed = opipe->sed; 2966 ohci_soft_td_t *data, *tail; 2967 int len; 2968 int s; 2969 2970 if (sc->sc_dying) 2971 return (USBD_IOERROR); 2972 2973 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2974 "flags=%d priv=%p\n", 2975 xfer, xfer->length, xfer->flags, xfer->priv)); 2976 2977 #ifdef DIAGNOSTIC 2978 if (xfer->rqflags & URQ_REQUEST) 2979 panic("ohci_device_intr_transfer: a request"); 2980 #endif 2981 2982 len = xfer->length; 2983 2984 data = opipe->tail.td; 2985 tail = ohci_alloc_std(sc); 2986 if (tail == NULL) 2987 return (USBD_NOMEM); 2988 tail->xfer = NULL; 2989 2990 data->td.td_flags = htole32( 2991 OHCI_TD_IN | OHCI_TD_NOCC | 2992 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2993 if (xfer->flags & USBD_SHORT_XFER_OK) 2994 data->td.td_flags |= htole32(OHCI_TD_R); 2995 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf, 0)); 2996 data->nexttd = tail; 2997 data->td.td_nexttd = htole32(tail->physaddr); 2998 data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1); 2999 data->len = len; 3000 data->xfer = xfer; 3001 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 3002 xfer->hcpriv = data; 3003 3004 #ifdef OHCI_DEBUG 3005 if (ohcidebug > 5) { 3006 DPRINTF(("ohci_device_intr_transfer:\n")); 3007 ohci_dump_ed(sed); 3008 ohci_dump_tds(data); 3009 } 3010 #endif 3011 3012 /* Insert ED in schedule */ 3013 s = splusb(); 3014 sed->ed.ed_tailp = htole32(tail->physaddr); 3015 opipe->tail.td = tail; 3016 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 3017 3018 #if 0 3019 /* 3020 * This goes horribly wrong, printing thousands of descriptors, 3021 * because false references are followed due to the fact that the 3022 * TD is gone. 3023 */ 3024 if (ohcidebug > 5) { 3025 usb_delay_ms(&sc->sc_bus, 5); 3026 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 3027 OREAD4(sc, OHCI_COMMAND_STATUS))); 3028 ohci_dump_ed(sed); 3029 ohci_dump_tds(data); 3030 } 3031 #endif 3032 splx(s); 3033 3034 return (USBD_IN_PROGRESS); 3035 } 3036 3037 /* Abort a device control request. */ 3038 Static void 3039 ohci_device_intr_abort(usbd_xfer_handle xfer) 3040 { 3041 if (xfer->pipe->intrxfer == xfer) { 3042 DPRINTF(("ohci_device_intr_abort: remove\n")); 3043 xfer->pipe->intrxfer = NULL; 3044 } 3045 ohci_abort_xfer(xfer, USBD_CANCELLED); 3046 } 3047 3048 /* Close a device interrupt pipe. */ 3049 Static void 3050 ohci_device_intr_close(usbd_pipe_handle pipe) 3051 { 3052 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3053 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3054 int nslots = opipe->u.intr.nslots; 3055 int pos = opipe->u.intr.pos; 3056 int j; 3057 ohci_soft_ed_t *p, *sed = opipe->sed; 3058 int s; 3059 3060 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 3061 pipe, nslots, pos)); 3062 s = splusb(); 3063 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 3064 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 3065 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 3066 usb_delay_ms(&sc->sc_bus, 2); 3067 3068 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 3069 ; 3070 #ifdef DIAGNOSTIC 3071 if (p == NULL) 3072 panic("ohci_device_intr_close: ED not found"); 3073 #endif 3074 p->next = sed->next; 3075 p->ed.ed_nexted = sed->ed.ed_nexted; 3076 splx(s); 3077 3078 for (j = 0; j < nslots; j++) 3079 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 3080 3081 ohci_free_std(sc, opipe->tail.td); 3082 ohci_free_sed(sc, opipe->sed); 3083 } 3084 3085 Static usbd_status 3086 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 3087 { 3088 int i, j, s, best; 3089 u_int npoll, slow, shigh, nslots; 3090 u_int bestbw, bw; 3091 ohci_soft_ed_t *hsed, *sed = opipe->sed; 3092 3093 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 3094 if (ival == 0) { 3095 printf("ohci_setintr: 0 interval\n"); 3096 return (USBD_INVAL); 3097 } 3098 3099 npoll = OHCI_NO_INTRS; 3100 while (npoll > ival) 3101 npoll /= 2; 3102 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 3103 3104 /* 3105 * We now know which level in the tree the ED must go into. 3106 * Figure out which slot has most bandwidth left over. 3107 * Slots to examine: 3108 * npoll 3109 * 1 0 3110 * 2 1 2 3111 * 4 3 4 5 6 3112 * 8 7 8 9 10 11 12 13 14 3113 * N (N-1) .. (N-1+N-1) 3114 */ 3115 slow = npoll-1; 3116 shigh = slow + npoll; 3117 nslots = OHCI_NO_INTRS / npoll; 3118 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 3119 bw = 0; 3120 for (j = 0; j < nslots; j++) 3121 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 3122 if (bw < bestbw) { 3123 best = i; 3124 bestbw = bw; 3125 } 3126 } 3127 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 3128 best, slow, shigh, bestbw)); 3129 3130 s = splusb(); 3131 hsed = sc->sc_eds[best]; 3132 sed->next = hsed->next; 3133 sed->ed.ed_nexted = hsed->ed.ed_nexted; 3134 hsed->next = sed; 3135 hsed->ed.ed_nexted = htole32(sed->physaddr); 3136 splx(s); 3137 3138 for (j = 0; j < nslots; j++) 3139 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 3140 opipe->u.intr.nslots = nslots; 3141 opipe->u.intr.pos = best; 3142 3143 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 3144 return (USBD_NORMAL_COMPLETION); 3145 } 3146 3147 /***********************/ 3148 3149 usbd_status 3150 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 3151 { 3152 usbd_status err; 3153 3154 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3155 3156 /* Put it on our queue, */ 3157 err = usb_insert_transfer(xfer); 3158 3159 /* bail out on error, */ 3160 if (err && err != USBD_IN_PROGRESS) 3161 return (err); 3162 3163 /* XXX should check inuse here */ 3164 3165 /* insert into schedule, */ 3166 ohci_device_isoc_enter(xfer); 3167 3168 /* and start if the pipe wasn't running */ 3169 if (!err) 3170 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3171 3172 return (err); 3173 } 3174 3175 void 3176 ohci_device_isoc_enter(usbd_xfer_handle xfer) 3177 { 3178 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3179 usbd_device_handle dev = opipe->pipe.device; 3180 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3181 ohci_soft_ed_t *sed = opipe->sed; 3182 struct iso *iso = &opipe->u.iso; 3183 ohci_soft_itd_t *sitd, *nsitd; 3184 ohci_physaddr_t buf, offs, noffs, bp0; 3185 int i, ncur, nframes; 3186 int s; 3187 3188 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3189 "nframes=%d\n", 3190 iso->inuse, iso->next, xfer, xfer->nframes)); 3191 3192 if (sc->sc_dying) 3193 return; 3194 3195 if (iso->next == -1) { 3196 /* Not in use yet, schedule it a few frames ahead. */ 3197 iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5; 3198 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3199 iso->next)); 3200 } 3201 3202 sitd = opipe->tail.itd; 3203 buf = DMAADDR(&xfer->dmabuf, 0); 3204 bp0 = OHCI_PAGE(buf); 3205 offs = OHCI_PAGE_OFFSET(buf); 3206 nframes = xfer->nframes; 3207 xfer->hcpriv = sitd; 3208 for (i = ncur = 0; i < nframes; i++, ncur++) { 3209 noffs = offs + xfer->frlengths[i]; 3210 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3211 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3212 3213 /* Allocate next ITD */ 3214 nsitd = ohci_alloc_sitd(sc); 3215 if (nsitd == NULL) { 3216 /* XXX what now? */ 3217 printf("%s: isoc TD alloc failed\n", 3218 USBDEVNAME(sc->sc_bus.bdev)); 3219 return; 3220 } 3221 3222 /* Fill current ITD */ 3223 sitd->itd.itd_flags = htole32( 3224 OHCI_ITD_NOCC | 3225 OHCI_ITD_SET_SF(iso->next) | 3226 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3227 OHCI_ITD_SET_FC(ncur)); 3228 sitd->itd.itd_bp0 = htole32(bp0); 3229 sitd->nextitd = nsitd; 3230 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3231 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3232 sitd->xfer = xfer; 3233 sitd->flags = 0; 3234 3235 sitd = nsitd; 3236 iso->next = iso->next + ncur; 3237 bp0 = OHCI_PAGE(buf + offs); 3238 ncur = 0; 3239 } 3240 sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs)); 3241 offs = noffs; 3242 } 3243 nsitd = ohci_alloc_sitd(sc); 3244 if (nsitd == NULL) { 3245 /* XXX what now? */ 3246 printf("%s: isoc TD alloc failed\n", 3247 USBDEVNAME(sc->sc_bus.bdev)); 3248 return; 3249 } 3250 /* Fixup last used ITD */ 3251 sitd->itd.itd_flags = htole32( 3252 OHCI_ITD_NOCC | 3253 OHCI_ITD_SET_SF(iso->next) | 3254 OHCI_ITD_SET_DI(0) | 3255 OHCI_ITD_SET_FC(ncur)); 3256 sitd->itd.itd_bp0 = htole32(bp0); 3257 sitd->nextitd = nsitd; 3258 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3259 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3260 sitd->xfer = xfer; 3261 sitd->flags = OHCI_CALL_DONE; 3262 3263 iso->next = iso->next + ncur; 3264 iso->inuse += nframes; 3265 3266 xfer->actlen = offs; /* XXX pretend we did it all */ 3267 3268 xfer->status = USBD_IN_PROGRESS; 3269 3270 #ifdef OHCI_DEBUG 3271 if (ohcidebug > 5) { 3272 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3273 le32toh(sc->sc_hcca->hcca_frame_number))); 3274 ohci_dump_itds(xfer->hcpriv); 3275 ohci_dump_ed(sed); 3276 } 3277 #endif 3278 3279 s = splusb(); 3280 opipe->tail.itd = nsitd; 3281 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 3282 sed->ed.ed_tailp = htole32(nsitd->physaddr); 3283 splx(s); 3284 3285 #ifdef OHCI_DEBUG 3286 if (ohcidebug > 5) { 3287 delay(150000); 3288 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3289 le32toh(sc->sc_hcca->hcca_frame_number))); 3290 ohci_dump_itds(xfer->hcpriv); 3291 ohci_dump_ed(sed); 3292 } 3293 #endif 3294 } 3295 3296 usbd_status 3297 ohci_device_isoc_start(usbd_xfer_handle xfer) 3298 { 3299 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3300 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3301 3302 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3303 3304 if (sc->sc_dying) 3305 return (USBD_IOERROR); 3306 3307 #ifdef DIAGNOSTIC 3308 if (xfer->status != USBD_IN_PROGRESS) 3309 printf("ohci_device_isoc_start: not in progress %p\n", xfer); 3310 #endif 3311 3312 /* XXX anything to do? */ 3313 3314 return (USBD_IN_PROGRESS); 3315 } 3316 3317 void 3318 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3319 { 3320 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3321 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3322 ohci_soft_ed_t *sed; 3323 ohci_soft_itd_t *sitd; 3324 int s; 3325 3326 s = splusb(); 3327 3328 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3329 3330 /* Transfer is already done. */ 3331 if (xfer->status != USBD_NOT_STARTED && 3332 xfer->status != USBD_IN_PROGRESS) { 3333 splx(s); 3334 printf("ohci_device_isoc_abort: early return\n"); 3335 return; 3336 } 3337 3338 /* Give xfer the requested abort code. */ 3339 xfer->status = USBD_CANCELLED; 3340 3341 sed = opipe->sed; 3342 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 3343 3344 sitd = xfer->hcpriv; 3345 #ifdef DIAGNOSTIC 3346 if (sitd == NULL) { 3347 splx(s); 3348 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3349 return; 3350 } 3351 #endif 3352 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3353 #ifdef DIAGNOSTIC 3354 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3355 sitd->isdone = 1; 3356 #endif 3357 } 3358 3359 splx(s); 3360 3361 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3362 3363 s = splusb(); 3364 3365 /* Run callback. */ 3366 usb_transfer_complete(xfer); 3367 3368 sed->ed.ed_headp = htole32(sitd->physaddr); /* unlink TDs */ 3369 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 3370 3371 splx(s); 3372 } 3373 3374 void 3375 ohci_device_isoc_done(usbd_xfer_handle xfer) 3376 { 3377 3378 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3379 3380 xfer->hcpriv = NULL; 3381 } 3382 3383 usbd_status 3384 ohci_setup_isoc(usbd_pipe_handle pipe) 3385 { 3386 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3387 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3388 struct iso *iso = &opipe->u.iso; 3389 int s; 3390 3391 iso->next = -1; 3392 iso->inuse = 0; 3393 3394 s = splusb(); 3395 ohci_add_ed(opipe->sed, sc->sc_isoc_head); 3396 splx(s); 3397 3398 return (USBD_NORMAL_COMPLETION); 3399 } 3400 3401 void 3402 ohci_device_isoc_close(usbd_pipe_handle pipe) 3403 { 3404 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3405 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3406 3407 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3408 ohci_close_pipe(pipe, sc->sc_isoc_head); 3409 #ifdef DIAGNOSTIC 3410 opipe->tail.itd->isdone = 1; 3411 #endif 3412 ohci_free_sitd(sc, opipe->tail.itd); 3413 } 3414
Indexes created Fri Sep 26 08:10:20 GMT 2025