ohci.c revision 1.67
1 /* $NetBSD: ohci.c,v 1.67 2000/01/28 13:32:55 augustss 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 (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Open Host Controller driver. 43 * 44 * OHCI spec: ftp://ftp.compaq.com/pub/supportinformation/papers/hcir1_0a.exe 45 * USB spec: http://www.usb.org/developers/data/usb11.pdf 46 */ 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/malloc.h> 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <sys/kernel.h> 53 #include <sys/device.h> 54 #include <sys/select.h> 55 #elif defined(__FreeBSD__) 56 #include <sys/module.h> 57 #include <sys/bus.h> 58 #include <machine/bus_pio.h> 59 #include <machine/bus_memio.h> 60 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 61 #include <machine/cpu.h> 62 #endif 63 #endif 64 #include <sys/proc.h> 65 #include <sys/queue.h> 66 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/ohcireg.h> 77 #include <dev/usb/ohcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #if defined(__OpenBSD__) 86 struct cfdriver ohci_cd = { 87 NULL, "ohci", DV_DULL 88 }; 89 #endif 90 91 #ifdef OHCI_DEBUG 92 #define DPRINTF(x) if (ohcidebug) logprintf x 93 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 94 int ohcidebug = 0; 95 #else 96 #define DPRINTF(x) 97 #define DPRINTFN(n,x) 98 #endif 99 100 /* 101 * The OHCI controller is little endian, so on big endian machines 102 * the data strored in memory needs to be swapped. 103 */ 104 #if BYTE_ORDER == BIG_ENDIAN 105 #define LE(x) (bswap32(x)) 106 #else 107 #define LE(x) (x) 108 #endif 109 110 struct ohci_pipe; 111 112 static ohci_soft_ed_t *ohci_alloc_sed __P((ohci_softc_t *)); 113 static void ohci_free_sed __P((ohci_softc_t *, ohci_soft_ed_t *)); 114 115 static ohci_soft_td_t *ohci_alloc_std __P((ohci_softc_t *)); 116 static void ohci_free_std __P((ohci_softc_t *, ohci_soft_td_t *)); 117 118 static ohci_soft_itd_t *ohci_alloc_sitd __P((ohci_softc_t *)); 119 static void ohci_free_sitd __P((ohci_softc_t *,ohci_soft_itd_t *)); 120 121 #if 0 122 static void ohci_free_std_chain __P((ohci_softc_t *, 123 ohci_soft_td_t *, ohci_soft_td_t *)); 124 #endif 125 static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *, 126 ohci_softc_t *, int, int, u_int16_t, usb_dma_t *, 127 ohci_soft_td_t *, ohci_soft_td_t **)); 128 129 static void ohci_shutdown __P((void *v)); 130 static void ohci_power __P((int, void *)); 131 static usbd_status ohci_open __P((usbd_pipe_handle)); 132 static void ohci_poll __P((struct usbd_bus *)); 133 static void ohci_waitintr __P((ohci_softc_t *, 134 usbd_xfer_handle)); 135 static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 136 static void ohci_process_done __P((ohci_softc_t *, 137 ohci_physaddr_t)); 138 139 static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 140 static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 141 static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 142 static void ohci_hash_add_td __P((ohci_softc_t *, 143 ohci_soft_td_t *)); 144 static void ohci_hash_rem_td __P((ohci_softc_t *, 145 ohci_soft_td_t *)); 146 static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 147 ohci_physaddr_t)); 148 149 static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 150 static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 151 152 static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 153 u_int32_t)); 154 static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 155 156 static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 157 static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 158 159 static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 160 static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 161 static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 162 static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 163 static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 164 165 static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 166 static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 167 static void ohci_root_intr_abort __P((usbd_xfer_handle)); 168 static void ohci_root_intr_close __P((usbd_pipe_handle)); 169 static void ohci_root_intr_done __P((usbd_xfer_handle)); 170 171 static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 172 static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 173 static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 174 static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 175 static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 176 177 static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 178 static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 179 static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 180 static void ohci_device_bulk_close __P((usbd_pipe_handle)); 181 static void ohci_device_bulk_done __P((usbd_xfer_handle)); 182 183 static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 184 static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 185 static void ohci_device_intr_abort __P((usbd_xfer_handle)); 186 static void ohci_device_intr_close __P((usbd_pipe_handle)); 187 static void ohci_device_intr_done __P((usbd_xfer_handle)); 188 189 static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 190 static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 191 static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 192 static void ohci_device_isoc_close __P((usbd_pipe_handle)); 193 static void ohci_device_isoc_done __P((usbd_xfer_handle)); 194 195 static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 196 struct ohci_pipe *pipe, int ival)); 197 198 static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 199 200 static void ohci_timeout __P((void *)); 201 static void ohci_rhsc_able __P((ohci_softc_t *, int)); 202 203 static void ohci_close_pipe __P((usbd_pipe_handle pipe, 204 ohci_soft_ed_t *head)); 205 static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 206 usbd_status status)); 207 static void ohci_abort_xfer_end __P((void *)); 208 209 static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 210 static void ohci_noop __P((usbd_pipe_handle pipe)); 211 212 #ifdef OHCI_DEBUG 213 static void ohci_dumpregs __P((ohci_softc_t *)); 214 static void ohci_dump_tds __P((ohci_soft_td_t *)); 215 static void ohci_dump_td __P((ohci_soft_td_t *)); 216 static void ohci_dump_ed __P((ohci_soft_ed_t *)); 217 #endif 218 219 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 220 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 221 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 222 223 /* Reverse the bits in a value 0 .. 31 */ 224 static u_int8_t revbits[OHCI_NO_INTRS] = 225 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 226 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 227 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 228 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 229 230 struct ohci_pipe { 231 struct usbd_pipe pipe; 232 ohci_soft_ed_t *sed; 233 union { 234 ohci_soft_td_t *td; 235 ohci_soft_itd_t *itd; 236 } tail; 237 /* Info needed for different pipe kinds. */ 238 union { 239 /* Control pipe */ 240 struct { 241 usb_dma_t reqdma; 242 u_int length; 243 ohci_soft_td_t *setup, *data, *stat; 244 } ctl; 245 /* Interrupt pipe */ 246 struct { 247 int nslots; 248 int pos; 249 } intr; 250 /* Bulk pipe */ 251 struct { 252 u_int length; 253 int isread; 254 } bulk; 255 /* Iso pipe */ 256 struct iso { 257 int next, inuse; 258 } iso; 259 } u; 260 }; 261 262 #define OHCI_INTR_ENDPT 1 263 264 static struct usbd_bus_methods ohci_bus_methods = { 265 ohci_open, 266 ohci_poll, 267 ohci_allocm, 268 ohci_freem, 269 ohci_allocx, 270 ohci_freex, 271 }; 272 273 static struct usbd_pipe_methods ohci_root_ctrl_methods = { 274 ohci_root_ctrl_transfer, 275 ohci_root_ctrl_start, 276 ohci_root_ctrl_abort, 277 ohci_root_ctrl_close, 278 ohci_noop, 279 ohci_root_ctrl_done, 280 }; 281 282 static struct usbd_pipe_methods ohci_root_intr_methods = { 283 ohci_root_intr_transfer, 284 ohci_root_intr_start, 285 ohci_root_intr_abort, 286 ohci_root_intr_close, 287 ohci_noop, 288 ohci_root_intr_done, 289 }; 290 291 static struct usbd_pipe_methods ohci_device_ctrl_methods = { 292 ohci_device_ctrl_transfer, 293 ohci_device_ctrl_start, 294 ohci_device_ctrl_abort, 295 ohci_device_ctrl_close, 296 ohci_noop, 297 ohci_device_ctrl_done, 298 }; 299 300 static struct usbd_pipe_methods ohci_device_intr_methods = { 301 ohci_device_intr_transfer, 302 ohci_device_intr_start, 303 ohci_device_intr_abort, 304 ohci_device_intr_close, 305 ohci_device_clear_toggle, 306 ohci_device_intr_done, 307 }; 308 309 static struct usbd_pipe_methods ohci_device_bulk_methods = { 310 ohci_device_bulk_transfer, 311 ohci_device_bulk_start, 312 ohci_device_bulk_abort, 313 ohci_device_bulk_close, 314 ohci_device_clear_toggle, 315 ohci_device_bulk_done, 316 }; 317 318 static struct usbd_pipe_methods ohci_device_isoc_methods = { 319 ohci_device_isoc_transfer, 320 ohci_device_isoc_start, 321 ohci_device_isoc_abort, 322 ohci_device_isoc_close, 323 ohci_noop, 324 ohci_device_isoc_done, 325 }; 326 327 #if defined(__NetBSD__) || defined(__OpenBSD__) 328 int 329 ohci_activate(self, act) 330 device_ptr_t self; 331 enum devact act; 332 { 333 struct ohci_softc *sc = (struct ohci_softc *)self; 334 int rv = 0; 335 336 switch (act) { 337 case DVACT_ACTIVATE: 338 return (EOPNOTSUPP); 339 break; 340 341 case DVACT_DEACTIVATE: 342 if (sc->sc_child != NULL) 343 rv = config_deactivate(sc->sc_child); 344 break; 345 } 346 return (rv); 347 } 348 349 int 350 ohci_detach(sc, flags) 351 struct ohci_softc *sc; 352 int flags; 353 { 354 int rv = 0; 355 356 if (sc->sc_child != NULL) 357 rv = config_detach(sc->sc_child, flags); 358 359 if (rv != 0) 360 return (rv); 361 362 powerhook_disestablish(sc->sc_powerhook); 363 shutdownhook_disestablish(sc->sc_shutdownhook); 364 365 /* free data structures XXX */ 366 367 return (rv); 368 } 369 #endif 370 371 ohci_soft_ed_t * 372 ohci_alloc_sed(sc) 373 ohci_softc_t *sc; 374 { 375 ohci_soft_ed_t *sed; 376 usbd_status err; 377 int i, offs; 378 usb_dma_t dma; 379 380 if (sc->sc_freeeds == NULL) { 381 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 382 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 383 OHCI_ED_ALIGN, &dma); 384 if (err) 385 return (0); 386 for(i = 0; i < OHCI_SED_CHUNK; i++) { 387 offs = i * OHCI_SED_SIZE; 388 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 389 sed->physaddr = DMAADDR(&dma) + offs; 390 sed->next = sc->sc_freeeds; 391 sc->sc_freeeds = sed; 392 } 393 } 394 sed = sc->sc_freeeds; 395 sc->sc_freeeds = sed->next; 396 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 397 sed->next = 0; 398 return (sed); 399 } 400 401 void 402 ohci_free_sed(sc, sed) 403 ohci_softc_t *sc; 404 ohci_soft_ed_t *sed; 405 { 406 sed->next = sc->sc_freeeds; 407 sc->sc_freeeds = sed; 408 } 409 410 ohci_soft_td_t * 411 ohci_alloc_std(sc) 412 ohci_softc_t *sc; 413 { 414 ohci_soft_td_t *std; 415 usbd_status err; 416 int i, offs; 417 usb_dma_t dma; 418 419 if (sc->sc_freetds == NULL) { 420 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 421 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 422 OHCI_TD_ALIGN, &dma); 423 if (err) 424 return (0); 425 for(i = 0; i < OHCI_STD_CHUNK; i++) { 426 offs = i * OHCI_STD_SIZE; 427 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 428 std->physaddr = DMAADDR(&dma) + offs; 429 std->nexttd = sc->sc_freetds; 430 sc->sc_freetds = std; 431 } 432 } 433 std = sc->sc_freetds; 434 sc->sc_freetds = std->nexttd; 435 memset(&std->td, 0, sizeof(ohci_td_t)); 436 std->nexttd = 0; 437 return (std); 438 } 439 440 void 441 ohci_free_std(sc, std) 442 ohci_softc_t *sc; 443 ohci_soft_td_t *std; 444 { 445 std->nexttd = sc->sc_freetds; 446 sc->sc_freetds = std; 447 } 448 449 usbd_status 450 ohci_alloc_std_chain(opipe, sc, len, rd, flags, dma, sp, ep) 451 struct ohci_pipe *opipe; 452 ohci_softc_t *sc; 453 int len, rd; 454 u_int16_t flags; 455 usb_dma_t *dma; 456 ohci_soft_td_t *sp, **ep; 457 { 458 ohci_soft_td_t *next, *cur; 459 ohci_physaddr_t dataphys, dataphysend; 460 u_int32_t intr, tdflags; 461 int curlen; 462 463 DPRINTFN(len < 4096,("ohci_alloc_std_chain: start len=%d\n", len)); 464 cur = sp; 465 dataphys = DMAADDR(dma); 466 dataphysend = OHCI_PAGE(dataphys + len - 1); 467 tdflags = 468 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 469 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | 470 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0); 471 472 for (;;) { 473 next = ohci_alloc_std(sc); 474 if (next == 0) 475 goto nomem; 476 477 /* The OHCI hardware can handle at most one page crossing. */ 478 if (OHCI_PAGE(dataphys) == dataphysend || 479 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 480 /* we can handle it in this TD */ 481 curlen = len; 482 } else { 483 /* must use multiple TDs, fill as much as possible. */ 484 curlen = 2 * OHCI_PAGE_SIZE - 485 (dataphys & (OHCI_PAGE_SIZE-1)); 486 } 487 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 488 "dataphysend=0x%08x len=%d curlen=%d\n", 489 dataphys, dataphysend, 490 len, curlen)); 491 len -= curlen; 492 493 intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR; 494 cur->td.td_flags = LE(tdflags | intr); 495 cur->td.td_cbp = LE(dataphys); 496 cur->nexttd = next; 497 cur->td.td_nexttd = LE(next->physaddr); 498 cur->td.td_be = LE(dataphys + curlen - 1); 499 cur->len = curlen; 500 cur->flags = OHCI_ADD_LEN; 501 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 502 dataphys, dataphys + curlen - 1)); 503 if (len == 0) 504 break; 505 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 506 dataphys += curlen; 507 cur = next; 508 } 509 if ((flags & USBD_FORCE_SHORT_XFER) && 510 len % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 511 /* Force a 0 length transfer at the end. */ 512 next = ohci_alloc_std(sc); 513 if (next == 0) 514 goto nomem; 515 516 cur->td.td_flags = LE(tdflags | OHCI_TD_SET_DI(1)); 517 cur->td.td_cbp = 0; /* indicate 0 length packet */ 518 cur->nexttd = next; 519 cur->td.td_nexttd = LE(next->physaddr); 520 cur->td.td_be = LE(dataphys - 1); 521 cur->len = 0; 522 cur->flags = 0; 523 cur = next; 524 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 525 } 526 cur->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 527 *ep = next; 528 529 return (USBD_NORMAL_COMPLETION); 530 531 nomem: 532 /* XXX free chain */ 533 return (USBD_NOMEM); 534 } 535 536 #if 0 537 static void 538 ohci_free_std_chain(sc, std, stdend) 539 ohci_softc_t *sc; 540 ohci_soft_td_t *std; 541 ohci_soft_td_t *stdend; 542 { 543 ohci_soft_td_t *p; 544 545 for (; std != stdend; std = p) { 546 p = std->nexttd; 547 ohci_free_std(sc, std); 548 } 549 } 550 #endif 551 552 ohci_soft_itd_t * 553 ohci_alloc_sitd(sc) 554 ohci_softc_t *sc; 555 { 556 ohci_soft_itd_t *sitd; 557 usbd_status err; 558 int i, offs; 559 usb_dma_t dma; 560 561 if (sc->sc_freeitds == NULL) { 562 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 563 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 564 OHCI_TD_ALIGN, &dma); 565 if (err) 566 return (0); 567 for(i = 0; i < OHCI_STD_CHUNK; i++) { 568 offs = i * OHCI_STD_SIZE; 569 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 570 sitd->physaddr = DMAADDR(&dma) + offs; 571 sitd->nextitd = sc->sc_freeitds; 572 sc->sc_freeitds = sitd; 573 } 574 } 575 sitd = sc->sc_freeitds; 576 sc->sc_freeitds = sitd->nextitd; 577 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 578 sitd->nextitd = 0; 579 return (sitd); 580 } 581 582 void 583 ohci_free_sitd(sc, sitd) 584 ohci_softc_t *sc; 585 ohci_soft_itd_t *sitd; 586 { 587 sitd->nextitd = sc->sc_freeitds; 588 sc->sc_freeitds = sitd; 589 } 590 591 usbd_status 592 ohci_init(sc) 593 ohci_softc_t *sc; 594 { 595 ohci_soft_ed_t *sed, *psed; 596 usbd_status err; 597 int i; 598 u_int32_t s, ctl, ival, hcr, fm, per, rev; 599 600 DPRINTF(("ohci_init: start\n")); 601 #if defined(__OpenBSD__) 602 printf(","); 603 #else 604 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 605 #endif 606 rev = OREAD4(sc, OHCI_REVISION); 607 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 608 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 609 610 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 611 printf("%s: unsupported OHCI revision\n", 612 USBDEVNAME(sc->sc_bus.bdev)); 613 sc->sc_bus.usbrev = USBREV_UNKNOWN; 614 return (USBD_INVAL); 615 } 616 sc->sc_bus.usbrev = USBREV_1_0; 617 618 for (i = 0; i < OHCI_HASH_SIZE; i++) 619 LIST_INIT(&sc->sc_hash_tds[i]); 620 621 SIMPLEQ_INIT(&sc->sc_free_xfers); 622 623 /* Allocate the HCCA area. */ 624 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 625 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 626 if (err) 627 return (err); 628 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 629 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 630 631 sc->sc_eintrs = OHCI_NORMAL_INTRS; 632 633 /* Allocate dummy ED that starts the control list. */ 634 sc->sc_ctrl_head = ohci_alloc_sed(sc); 635 if (sc->sc_ctrl_head == NULL) { 636 err = USBD_NOMEM; 637 goto bad1; 638 } 639 sc->sc_ctrl_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 640 641 /* Allocate dummy ED that starts the bulk list. */ 642 sc->sc_bulk_head = ohci_alloc_sed(sc); 643 if (sc->sc_bulk_head == NULL) { 644 err = USBD_NOMEM; 645 goto bad2; 646 } 647 sc->sc_bulk_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 648 649 /* Allocate dummy ED that starts the isochronous list. */ 650 sc->sc_isoc_head = ohci_alloc_sed(sc); 651 if (sc->sc_isoc_head == NULL) { 652 err = USBD_NOMEM; 653 goto bad3; 654 } 655 sc->sc_isoc_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 656 657 /* Allocate all the dummy EDs that make up the interrupt tree. */ 658 for (i = 0; i < OHCI_NO_EDS; i++) { 659 sed = ohci_alloc_sed(sc); 660 if (sed == NULL) { 661 while (--i >= 0) 662 ohci_free_sed(sc, sc->sc_eds[i]); 663 err = USBD_NOMEM; 664 goto bad4; 665 } 666 /* All ED fields are set to 0. */ 667 sc->sc_eds[i] = sed; 668 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 669 if (i != 0) 670 psed = sc->sc_eds[(i-1) / 2]; 671 else 672 psed= sc->sc_isoc_head; 673 sed->next = psed; 674 sed->ed.ed_nexted = LE(psed->physaddr); 675 } 676 /* 677 * Fill HCCA interrupt table. The bit reversal is to get 678 * the tree set up properly to spread the interrupts. 679 */ 680 for (i = 0; i < OHCI_NO_INTRS; i++) 681 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 682 LE(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 683 684 /* Determine in what context we are running. */ 685 ctl = OREAD4(sc, OHCI_CONTROL); 686 if (ctl & OHCI_IR) { 687 /* SMM active, request change */ 688 DPRINTF(("ohci_init: SMM active, request owner change\n")); 689 s = OREAD4(sc, OHCI_COMMAND_STATUS); 690 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 691 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 692 usb_delay_ms(&sc->sc_bus, 1); 693 ctl = OREAD4(sc, OHCI_CONTROL); 694 } 695 if ((ctl & OHCI_IR) == 0) { 696 printf("%s: SMM does not respond, resetting\n", 697 USBDEVNAME(sc->sc_bus.bdev)); 698 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 699 goto reset; 700 } 701 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 702 /* BIOS started controller. */ 703 DPRINTF(("ohci_init: BIOS active\n")); 704 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 705 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 706 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 707 } 708 } else { 709 DPRINTF(("ohci_init: cold started\n")); 710 reset: 711 /* Controller was cold started. */ 712 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 713 } 714 715 /* 716 * This reset should not be necessary according to the OHCI spec, but 717 * without it some controllers do not start. 718 */ 719 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 720 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 721 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 722 723 /* We now own the host controller and the bus has been reset. */ 724 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 725 726 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 727 /* Nominal time for a reset is 10 us. */ 728 for (i = 0; i < 10; i++) { 729 delay(10); 730 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 731 if (!hcr) 732 break; 733 } 734 if (hcr) { 735 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 736 err = USBD_IOERROR; 737 goto bad5; 738 } 739 #ifdef OHCI_DEBUG 740 if (ohcidebug > 15) 741 ohci_dumpregs(sc); 742 #endif 743 744 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 745 746 /* Set up HC registers. */ 747 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 748 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 749 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 750 /* disable all interrupts and then switch on all desired interrupts */ 751 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 752 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 753 /* switch on desired functional features */ 754 ctl = OREAD4(sc, OHCI_CONTROL); 755 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 756 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 757 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 758 /* And finally start it! */ 759 OWRITE4(sc, OHCI_CONTROL, ctl); 760 761 /* 762 * The controller is now OPERATIONAL. Set a some final 763 * registers that should be set earlier, but that the 764 * controller ignores when in the SUSPEND state. 765 */ 766 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 767 fm |= OHCI_FSMPS(ival) | ival; 768 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 769 per = OHCI_PERIODIC(ival); /* 90% periodic */ 770 OWRITE4(sc, OHCI_PERIODIC_START, per); 771 772 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 773 774 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 775 776 #ifdef OHCI_DEBUG 777 if (ohcidebug > 5) 778 ohci_dumpregs(sc); 779 #endif 780 781 /* Set up the bus struct. */ 782 sc->sc_bus.methods = &ohci_bus_methods; 783 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 784 785 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 786 787 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 788 789 return (USBD_NORMAL_COMPLETION); 790 791 bad5: 792 for (i = 0; i < OHCI_NO_EDS; i++) 793 ohci_free_sed(sc, sc->sc_eds[i]); 794 bad4: 795 ohci_free_sed(sc, sc->sc_isoc_head); 796 bad3: 797 ohci_free_sed(sc, sc->sc_ctrl_head); 798 bad2: 799 ohci_free_sed(sc, sc->sc_bulk_head); 800 bad1: 801 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 802 return (err); 803 } 804 805 usbd_status 806 ohci_allocm(bus, dma, size) 807 struct usbd_bus *bus; 808 usb_dma_t *dma; 809 u_int32_t size; 810 { 811 #if defined(__NetBSD__) || defined(__OpenBSD__) 812 struct ohci_softc *sc = (struct ohci_softc *)bus; 813 #endif 814 815 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 816 } 817 818 void 819 ohci_freem(bus, dma) 820 struct usbd_bus *bus; 821 usb_dma_t *dma; 822 { 823 #if defined(__NetBSD__) || defined(__OpenBSD__) 824 struct ohci_softc *sc = (struct ohci_softc *)bus; 825 #endif 826 827 usb_freemem(&sc->sc_bus, dma); 828 } 829 830 usbd_xfer_handle 831 ohci_allocx(bus) 832 struct usbd_bus *bus; 833 { 834 struct ohci_softc *sc = (struct ohci_softc *)bus; 835 usbd_xfer_handle xfer; 836 837 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 838 if (xfer != NULL) 839 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 840 else 841 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 842 if (xfer != NULL) 843 memset(xfer, 0, sizeof *xfer); 844 return (xfer); 845 } 846 847 void 848 ohci_freex(bus, xfer) 849 struct usbd_bus *bus; 850 usbd_xfer_handle xfer; 851 { 852 struct ohci_softc *sc = (struct ohci_softc *)bus; 853 854 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 855 } 856 857 /* 858 * Shut down the controller when the system is going down. 859 */ 860 void 861 ohci_shutdown(v) 862 void *v; 863 { 864 ohci_softc_t *sc = v; 865 866 DPRINTF(("ohci_shutdown: stopping the HC\n")); 867 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 868 } 869 870 /* 871 * Handle suspend/resume. 872 * 873 * We need to switch to polling mode here, because this routine is 874 * called from an intterupt context. This is all right since we 875 * are almost suspended anyway. 876 */ 877 void 878 ohci_power(why, v) 879 int why; 880 void *v; 881 { 882 #ifdef OHCI_DEBUG 883 ohci_softc_t *sc = v; 884 885 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 886 /* XXX should suspend/resume */ 887 ohci_dumpregs(sc); 888 #endif 889 } 890 891 #ifdef OHCI_DEBUG 892 void 893 ohci_dumpregs(sc) 894 ohci_softc_t *sc; 895 { 896 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 897 OREAD4(sc, OHCI_REVISION), 898 OREAD4(sc, OHCI_CONTROL), 899 OREAD4(sc, OHCI_COMMAND_STATUS))); 900 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 901 OREAD4(sc, OHCI_INTERRUPT_STATUS), 902 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 903 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 904 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 905 OREAD4(sc, OHCI_HCCA), 906 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 907 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 908 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 909 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 910 OREAD4(sc, OHCI_BULK_HEAD_ED), 911 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 912 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 913 OREAD4(sc, OHCI_DONE_HEAD), 914 OREAD4(sc, OHCI_FM_INTERVAL), 915 OREAD4(sc, OHCI_FM_REMAINING))); 916 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 917 OREAD4(sc, OHCI_FM_NUMBER), 918 OREAD4(sc, OHCI_PERIODIC_START), 919 OREAD4(sc, OHCI_LS_THRESHOLD))); 920 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 921 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 922 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 923 OREAD4(sc, OHCI_RH_STATUS))); 924 DPRINTF((" port1=0x%08x port2=0x%08x\n", 925 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 926 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 927 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 928 LE(sc->sc_hcca->hcca_frame_number), 929 LE(sc->sc_hcca->hcca_done_head))); 930 } 931 #endif 932 933 static int ohci_intr1 __P((ohci_softc_t *)); 934 935 int 936 ohci_intr(p) 937 void *p; 938 { 939 ohci_softc_t *sc = p; 940 941 /* If we get an interrupt while polling, then just ignore it. */ 942 if (sc->sc_bus.use_polling) { 943 #ifdef DIAGNOSTIC 944 printf("ohci_intr: ignored interrupt while polling\n"); 945 #endif 946 return (0); 947 } 948 949 return (ohci_intr1(sc)); 950 } 951 952 static int 953 ohci_intr1(sc) 954 ohci_softc_t *sc; 955 { 956 u_int32_t intrs, eintrs; 957 ohci_physaddr_t done; 958 959 /* In case the interrupt occurs before initialization has completed. */ 960 if (sc == NULL || sc->sc_hcca == NULL) { 961 #ifdef DIAGNOSTIC 962 printf("ohci_intr: sc->sc_hcca == NULL\n"); 963 #endif 964 return (0); 965 } 966 967 intrs = 0; 968 done = LE(sc->sc_hcca->hcca_done_head); 969 if (done != 0) { 970 sc->sc_hcca->hcca_done_head = 0; 971 if (done & ~OHCI_DONE_INTRS) 972 intrs = OHCI_WDH; 973 if (done & OHCI_DONE_INTRS) 974 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 975 } else 976 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 977 978 if (!intrs) 979 return (0); 980 981 intrs &= ~OHCI_MIE; 982 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 983 eintrs = intrs & sc->sc_eintrs; 984 if (!eintrs) 985 return (0); 986 987 sc->sc_bus.intr_context++; 988 sc->sc_bus.no_intrs++; 989 DPRINTFN(7, ("ohci_intr: sc=%p intrs=%x(%x) eintr=%x\n", 990 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 991 (u_int)eintrs)); 992 993 if (eintrs & OHCI_SO) { 994 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 995 /* XXX do what */ 996 intrs &= ~OHCI_SO; 997 } 998 if (eintrs & OHCI_WDH) { 999 ohci_process_done(sc, done &~ OHCI_DONE_INTRS); 1000 intrs &= ~OHCI_WDH; 1001 } 1002 if (eintrs & OHCI_RD) { 1003 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1004 /* XXX process resume detect */ 1005 } 1006 if (eintrs & OHCI_UE) { 1007 printf("%s: unrecoverable error, controller halted\n", 1008 USBDEVNAME(sc->sc_bus.bdev)); 1009 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1010 /* XXX what else */ 1011 } 1012 if (eintrs & OHCI_RHSC) { 1013 ohci_rhsc(sc, sc->sc_intrxfer); 1014 intrs &= ~OHCI_RHSC; 1015 1016 /* 1017 * Disable RHSC interrupt for now, because it will be 1018 * on until the port has been reset. 1019 */ 1020 ohci_rhsc_able(sc, 0); 1021 } 1022 1023 sc->sc_bus.intr_context--; 1024 1025 /* Block unprocessed interrupts. XXX */ 1026 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1027 sc->sc_eintrs &= ~intrs; 1028 1029 return (1); 1030 } 1031 1032 void 1033 ohci_rhsc_able(sc, on) 1034 ohci_softc_t *sc; 1035 int on; 1036 { 1037 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1038 if (on) { 1039 sc->sc_eintrs |= OHCI_RHSC; 1040 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1041 } else { 1042 sc->sc_eintrs &= ~OHCI_RHSC; 1043 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1044 } 1045 } 1046 1047 #ifdef OHCI_DEBUG 1048 char *ohci_cc_strs[] = { 1049 "NO_ERROR", 1050 "CRC", 1051 "BIT_STUFFING", 1052 "DATA_TOGGLE_MISMATCH", 1053 "STALL", 1054 "DEVICE_NOT_RESPONDING", 1055 "PID_CHECK_FAILURE", 1056 "UNEXPECTED_PID", 1057 "DATA_OVERRUN", 1058 "DATA_UNDERRUN", 1059 "BUFFER_OVERRUN", 1060 "BUFFER_UNDERRUN", 1061 "reserved", 1062 "reserved", 1063 "NOT_ACCESSED", 1064 "NOT_ACCESSED", 1065 }; 1066 #endif 1067 1068 void 1069 ohci_process_done(sc, done) 1070 ohci_softc_t *sc; 1071 ohci_physaddr_t done; 1072 { 1073 ohci_soft_td_t *std, *sdone, *stdnext; 1074 usbd_xfer_handle xfer; 1075 int len, cc; 1076 1077 DPRINTFN(10,("ohci_process_done: done=0x%08lx\n", (u_long)done)); 1078 1079 /* Reverse the done list. */ 1080 for (sdone = 0; done; done = LE(std->td.td_nexttd)) { 1081 std = ohci_hash_find_td(sc, done); 1082 std->dnext = sdone; 1083 sdone = std; 1084 } 1085 1086 #ifdef OHCI_DEBUG 1087 if (ohcidebug > 10) { 1088 DPRINTF(("ohci_process_done: TD done:\n")); 1089 ohci_dump_tds(sdone); 1090 } 1091 #endif 1092 1093 for (std = sdone; std; std = stdnext) { 1094 xfer = std->xfer; 1095 stdnext = std->dnext; 1096 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1097 std, xfer, xfer->hcpriv)); 1098 cc = OHCI_TD_GET_CC(LE(std->td.td_flags)); 1099 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1100 if (xfer->status == USBD_CANCELLED || 1101 xfer->status == USBD_TIMEOUT) { 1102 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1103 xfer)); 1104 /* Handled by abort routine. */ 1105 } else if (cc == OHCI_CC_NO_ERROR) { 1106 len = std->len; 1107 if (std->td.td_cbp != 0) 1108 len -= LE(std->td.td_be) - 1109 LE(std->td.td_cbp) + 1; 1110 if (std->flags & OHCI_ADD_LEN) 1111 xfer->actlen += len; 1112 if (std->flags & OHCI_CALL_DONE) { 1113 xfer->status = USBD_NORMAL_COMPLETION; 1114 usb_transfer_complete(xfer); 1115 } 1116 ohci_hash_rem_td(sc, std); 1117 ohci_free_std(sc, std); 1118 } else { 1119 /* 1120 * Endpoint is halted. First unlink all the TDs 1121 * belonging to the failed transfer, and then restart 1122 * the endpoint. 1123 */ 1124 ohci_soft_td_t *p, *n; 1125 struct ohci_pipe *opipe = 1126 (struct ohci_pipe *)xfer->pipe; 1127 1128 DPRINTF(("ohci_process_done: error cc=%d (%s)\n", 1129 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1130 ohci_cc_strs[OHCI_TD_GET_CC(LE(std->td.td_flags))])); 1131 1132 /* remove TDs */ 1133 for (p = std; p->xfer == xfer; p = n) { 1134 n = p->nexttd; 1135 ohci_hash_rem_td(sc, p); 1136 ohci_free_std(sc, p); 1137 } 1138 1139 /* clear halt */ 1140 opipe->sed->ed.ed_headp = LE(p->physaddr); 1141 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1142 1143 if (cc == OHCI_CC_STALL) 1144 xfer->status = USBD_STALLED; 1145 else 1146 xfer->status = USBD_IOERROR; 1147 usb_transfer_complete(xfer); 1148 } 1149 } 1150 } 1151 1152 void 1153 ohci_device_ctrl_done(xfer) 1154 usbd_xfer_handle xfer; 1155 { 1156 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1157 1158 #ifdef DIAGNOSTIC 1159 if (!(xfer->rqflags & URQ_REQUEST)) { 1160 panic("ohci_ctrl_done: not a request\n"); 1161 } 1162 #endif 1163 xfer->hcpriv = NULL; 1164 } 1165 1166 void 1167 ohci_device_intr_done(xfer) 1168 usbd_xfer_handle xfer; 1169 { 1170 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1171 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1172 ohci_soft_ed_t *sed = opipe->sed; 1173 ohci_soft_td_t *data, *tail; 1174 1175 1176 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1177 xfer, xfer->actlen)); 1178 1179 xfer->hcpriv = NULL; 1180 1181 if (xfer->pipe->repeat) { 1182 data = opipe->tail.td; 1183 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1184 if (tail == NULL) { 1185 xfer->status = USBD_NOMEM; 1186 return; 1187 } 1188 tail->xfer = NULL; 1189 1190 data->td.td_flags = LE( 1191 OHCI_TD_IN | OHCI_TD_NOCC | 1192 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1193 if (xfer->flags & USBD_SHORT_XFER_OK) 1194 data->td.td_flags |= LE(OHCI_TD_R); 1195 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1196 data->nexttd = tail; 1197 data->td.td_nexttd = LE(tail->physaddr); 1198 data->td.td_be = LE(LE(data->td.td_cbp) + xfer->length - 1); 1199 data->len = xfer->length; 1200 data->xfer = xfer; 1201 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1202 xfer->hcpriv = data; 1203 xfer->actlen = 0; 1204 1205 ohci_hash_add_td(sc, data); 1206 sed->ed.ed_tailp = LE(tail->physaddr); 1207 opipe->tail.td = tail; 1208 } 1209 } 1210 1211 void 1212 ohci_device_bulk_done(xfer) 1213 usbd_xfer_handle xfer; 1214 { 1215 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1216 xfer, xfer->actlen)); 1217 1218 xfer->hcpriv = NULL; 1219 } 1220 1221 void 1222 ohci_rhsc(sc, xfer) 1223 ohci_softc_t *sc; 1224 usbd_xfer_handle xfer; 1225 { 1226 usbd_pipe_handle pipe; 1227 struct ohci_pipe *opipe; 1228 u_char *p; 1229 int i, m; 1230 int hstatus; 1231 1232 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1233 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1234 sc, xfer, hstatus)); 1235 1236 if (xfer == NULL) { 1237 /* Just ignore the change. */ 1238 return; 1239 } 1240 1241 pipe = xfer->pipe; 1242 opipe = (struct ohci_pipe *)pipe; 1243 1244 p = KERNADDR(&xfer->dmabuf); 1245 m = min(sc->sc_noport, xfer->length * 8 - 1); 1246 memset(p, 0, xfer->length); 1247 for (i = 1; i <= m; i++) { 1248 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1249 p[i/8] |= 1 << (i%8); 1250 } 1251 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1252 xfer->actlen = xfer->length; 1253 xfer->status = USBD_NORMAL_COMPLETION; 1254 1255 usb_transfer_complete(xfer); 1256 } 1257 1258 void 1259 ohci_root_intr_done(xfer) 1260 usbd_xfer_handle xfer; 1261 { 1262 xfer->hcpriv = NULL; 1263 } 1264 1265 void 1266 ohci_root_ctrl_done(xfer) 1267 usbd_xfer_handle xfer; 1268 { 1269 xfer->hcpriv = NULL; 1270 } 1271 1272 /* 1273 * Wait here until controller claims to have an interrupt. 1274 * Then call ohci_intr and return. Use timeout to avoid waiting 1275 * too long. 1276 */ 1277 void 1278 ohci_waitintr(sc, xfer) 1279 ohci_softc_t *sc; 1280 usbd_xfer_handle xfer; 1281 { 1282 int timo = xfer->timeout; 1283 int usecs; 1284 u_int32_t intrs; 1285 1286 xfer->status = USBD_IN_PROGRESS; 1287 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1288 usb_delay_ms(&sc->sc_bus, 1); 1289 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1290 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1291 #ifdef OHCI_DEBUG 1292 if (ohcidebug > 15) 1293 ohci_dumpregs(sc); 1294 #endif 1295 if (intrs) { 1296 ohci_intr1(sc); 1297 if (xfer->status != USBD_IN_PROGRESS) 1298 return; 1299 } 1300 } 1301 1302 /* Timeout */ 1303 DPRINTF(("ohci_waitintr: timeout\n")); 1304 xfer->status = USBD_TIMEOUT; 1305 usb_transfer_complete(xfer); 1306 /* XXX should free TD */ 1307 } 1308 1309 void 1310 ohci_poll(bus) 1311 struct usbd_bus *bus; 1312 { 1313 ohci_softc_t *sc = (ohci_softc_t *)bus; 1314 1315 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1316 ohci_intr1(sc); 1317 } 1318 1319 usbd_status 1320 ohci_device_request(xfer) 1321 usbd_xfer_handle xfer; 1322 { 1323 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1324 usb_device_request_t *req = &xfer->request; 1325 usbd_device_handle dev = opipe->pipe.device; 1326 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1327 int addr = dev->address; 1328 ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail; 1329 ohci_soft_ed_t *sed; 1330 int isread; 1331 int len; 1332 usbd_status err; 1333 int s; 1334 1335 isread = req->bmRequestType & UT_READ; 1336 len = UGETW(req->wLength); 1337 1338 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1339 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1340 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1341 UGETW(req->wIndex), len, addr, 1342 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1343 1344 setup = opipe->tail.td; 1345 stat = ohci_alloc_std(sc); 1346 if (stat == NULL) { 1347 err = USBD_NOMEM; 1348 goto bad1; 1349 } 1350 tail = ohci_alloc_std(sc); 1351 if (tail == NULL) { 1352 err = USBD_NOMEM; 1353 goto bad2; 1354 } 1355 tail->xfer = NULL; 1356 1357 sed = opipe->sed; 1358 opipe->u.ctl.length = len; 1359 1360 /* Update device address and length since they may have changed. */ 1361 /* XXX This only needs to be done once, but it's too early in open. */ 1362 sed->ed.ed_flags = LE( 1363 (LE(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1364 OHCI_ED_SET_FA(addr) | 1365 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1366 1367 /* Set up data transaction */ 1368 if (len != 0) { 1369 data = ohci_alloc_std(sc); 1370 if (data == NULL) { 1371 err = USBD_NOMEM; 1372 goto bad3; 1373 } 1374 data->td.td_flags = LE( 1375 (isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC | 1376 OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR | 1377 (xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0)); 1378 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1379 data->nexttd = stat; 1380 data->td.td_nexttd = LE(stat->physaddr); 1381 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 1382 data->len = len; 1383 data->xfer = xfer; 1384 data->flags = OHCI_ADD_LEN; 1385 1386 next = data; 1387 stat->flags = OHCI_CALL_DONE; 1388 } else { 1389 next = stat; 1390 /* XXX ADD_LEN? */ 1391 stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1392 } 1393 1394 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1395 1396 setup->td.td_flags = LE(OHCI_TD_SETUP | OHCI_TD_NOCC | 1397 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1398 setup->td.td_cbp = LE(DMAADDR(&opipe->u.ctl.reqdma)); 1399 setup->nexttd = next; 1400 setup->td.td_nexttd = LE(next->physaddr); 1401 setup->td.td_be = LE(LE(setup->td.td_cbp) + sizeof *req - 1); 1402 setup->len = 0; /* XXX The number of byte we count */ 1403 setup->xfer = xfer; 1404 setup->flags = 0; 1405 xfer->hcpriv = setup; 1406 1407 stat->td.td_flags = LE( 1408 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC | 1409 OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1410 stat->td.td_cbp = 0; 1411 stat->nexttd = tail; 1412 stat->td.td_nexttd = LE(tail->physaddr); 1413 stat->td.td_be = 0; 1414 stat->len = 0; 1415 stat->xfer = xfer; 1416 1417 #ifdef OHCI_DEBUG 1418 if (ohcidebug > 5) { 1419 DPRINTF(("ohci_device_request:\n")); 1420 ohci_dump_ed(sed); 1421 ohci_dump_tds(setup); 1422 } 1423 #endif 1424 1425 /* Insert ED in schedule */ 1426 s = splusb(); 1427 ohci_hash_add_td(sc, setup); 1428 if (len != 0) 1429 ohci_hash_add_td(sc, data); 1430 ohci_hash_add_td(sc, stat); 1431 sed->ed.ed_tailp = LE(tail->physaddr); 1432 opipe->tail.td = tail; 1433 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1434 if (xfer->timeout && !sc->sc_bus.use_polling) { 1435 usb_timeout(ohci_timeout, xfer, 1436 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 1437 } 1438 splx(s); 1439 1440 #ifdef OHCI_DEBUG 1441 if (ohcidebug > 5) { 1442 usb_delay_ms(&sc->sc_bus, 5); 1443 DPRINTF(("ohci_device_request: status=%x\n", 1444 OREAD4(sc, OHCI_COMMAND_STATUS))); 1445 ohci_dump_ed(sed); 1446 ohci_dump_tds(setup); 1447 } 1448 #endif 1449 1450 return (USBD_NORMAL_COMPLETION); 1451 1452 bad3: 1453 ohci_free_std(sc, tail); 1454 bad2: 1455 ohci_free_std(sc, stat); 1456 bad1: 1457 return (err); 1458 } 1459 1460 /* 1461 * Add an ED to the schedule. Called at splusb(). 1462 */ 1463 void 1464 ohci_add_ed(sed, head) 1465 ohci_soft_ed_t *sed; 1466 ohci_soft_ed_t *head; 1467 { 1468 SPLUSBCHECK; 1469 sed->next = head->next; 1470 sed->ed.ed_nexted = head->ed.ed_nexted; 1471 head->next = sed; 1472 head->ed.ed_nexted = LE(sed->physaddr); 1473 } 1474 1475 /* 1476 * Remove an ED from the schedule. Called at splusb(). 1477 */ 1478 void 1479 ohci_rem_ed(sed, head) 1480 ohci_soft_ed_t *sed; 1481 ohci_soft_ed_t *head; 1482 { 1483 ohci_soft_ed_t *p; 1484 1485 SPLUSBCHECK; 1486 1487 /* XXX */ 1488 for (p = head; p == NULL && p->next != sed; p = p->next) 1489 ; 1490 if (p == NULL) 1491 panic("ohci_rem_ed: ED not found\n"); 1492 p->next = sed->next; 1493 p->ed.ed_nexted = sed->ed.ed_nexted; 1494 } 1495 1496 /* 1497 * When a transfer is completed the TD is added to the done queue by 1498 * the host controller. This queue is the processed by software. 1499 * Unfortunately the queue contains the physical address of the TD 1500 * and we have no simple way to translate this back to a kernel address. 1501 * To make the translation possible (and fast) we use a hash table of 1502 * TDs currently in the schedule. The physical address is used as the 1503 * hash value. 1504 */ 1505 1506 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1507 /* Called at splusb() */ 1508 void 1509 ohci_hash_add_td(sc, std) 1510 ohci_softc_t *sc; 1511 ohci_soft_td_t *std; 1512 { 1513 int h = HASH(std->physaddr); 1514 1515 SPLUSBCHECK; 1516 1517 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1518 } 1519 1520 /* Called at splusb() */ 1521 void 1522 ohci_hash_rem_td(sc, std) 1523 ohci_softc_t *sc; 1524 ohci_soft_td_t *std; 1525 { 1526 SPLUSBCHECK; 1527 1528 LIST_REMOVE(std, hnext); 1529 } 1530 1531 ohci_soft_td_t * 1532 ohci_hash_find_td(sc, a) 1533 ohci_softc_t *sc; 1534 ohci_physaddr_t a; 1535 { 1536 int h = HASH(a); 1537 ohci_soft_td_t *std; 1538 1539 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1540 std != NULL; 1541 std = LIST_NEXT(std, hnext)) 1542 if (std->physaddr == a) 1543 return (std); 1544 panic("ohci_hash_find_td: addr 0x%08lx not found\n", (u_long)a); 1545 } 1546 1547 void 1548 ohci_timeout(addr) 1549 void *addr; 1550 { 1551 usbd_xfer_handle xfer = addr; 1552 int s; 1553 1554 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1555 1556 s = splusb(); 1557 xfer->device->bus->intr_context++; 1558 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1559 xfer->device->bus->intr_context--; 1560 splx(s); 1561 } 1562 1563 #ifdef OHCI_DEBUG 1564 void 1565 ohci_dump_tds(std) 1566 ohci_soft_td_t *std; 1567 { 1568 for (; std; std = std->nexttd) 1569 ohci_dump_td(std); 1570 } 1571 1572 void 1573 ohci_dump_td(std) 1574 ohci_soft_td_t *std; 1575 { 1576 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1577 "nexttd=0x%08lx be=0x%08lx\n", 1578 std, (u_long)std->physaddr, 1579 (int)LE(std->td.td_flags), 1580 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1581 OHCI_TD_GET_DI(LE(std->td.td_flags)), 1582 OHCI_TD_GET_EC(LE(std->td.td_flags)), 1583 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1584 (u_long)LE(std->td.td_cbp), 1585 (u_long)LE(std->td.td_nexttd), (u_long)LE(std->td.td_be))); 1586 } 1587 1588 void 1589 ohci_dump_ed(sed) 1590 ohci_soft_ed_t *sed; 1591 { 1592 DPRINTF(("ED(%p) at %08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1593 "headp=%b nexted=0x%08lx\n", 1594 sed, (u_long)sed->physaddr, 1595 OHCI_ED_GET_FA(LE(sed->ed.ed_flags)), 1596 OHCI_ED_GET_EN(LE(sed->ed.ed_flags)), 1597 OHCI_ED_GET_MAXP(LE(sed->ed.ed_flags)), 1598 (int)LE(sed->ed.ed_flags), 1599 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1600 (u_long)LE(sed->ed.ed_tailp), 1601 (u_long)LE(sed->ed.ed_headp), 1602 "\20\1HALT\2CARRY", 1603 (u_long)LE(sed->ed.ed_nexted))); 1604 } 1605 #endif 1606 1607 usbd_status 1608 ohci_open(pipe) 1609 usbd_pipe_handle pipe; 1610 { 1611 usbd_device_handle dev = pipe->device; 1612 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1613 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1614 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1615 u_int8_t addr = dev->address; 1616 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1617 ohci_soft_ed_t *sed; 1618 ohci_soft_td_t *std; 1619 ohci_soft_itd_t *sitd; 1620 ohci_physaddr_t tdphys; 1621 u_int32_t fmt; 1622 usbd_status err; 1623 int s; 1624 int ival; 1625 1626 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1627 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1628 if (addr == sc->sc_addr) { 1629 switch (ed->bEndpointAddress) { 1630 case USB_CONTROL_ENDPOINT: 1631 pipe->methods = &ohci_root_ctrl_methods; 1632 break; 1633 case UE_DIR_IN | OHCI_INTR_ENDPT: 1634 pipe->methods = &ohci_root_intr_methods; 1635 break; 1636 default: 1637 return (USBD_INVAL); 1638 } 1639 } else { 1640 sed = ohci_alloc_sed(sc); 1641 if (sed == NULL) 1642 goto bad0; 1643 opipe->sed = sed; 1644 if (xfertype == UE_ISOCHRONOUS) { 1645 sitd = ohci_alloc_sitd(sc); 1646 if (sitd == NULL) { 1647 ohci_free_sitd(sc, sitd); 1648 goto bad1; 1649 } 1650 opipe->tail.itd = sitd; 1651 tdphys = LE(sitd->physaddr); 1652 fmt = OHCI_ED_FORMAT_ISO; 1653 } else { 1654 std = ohci_alloc_std(sc); 1655 if (std == NULL) { 1656 ohci_free_std(sc, std); 1657 goto bad1; 1658 } 1659 opipe->tail.td = std; 1660 tdphys = LE(std->physaddr); 1661 fmt = OHCI_ED_FORMAT_GEN; 1662 } 1663 sed->ed.ed_flags = LE( 1664 OHCI_ED_SET_FA(addr) | 1665 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1666 OHCI_ED_DIR_TD | 1667 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1668 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1669 sed->ed.ed_headp = sed->ed.ed_tailp = tdphys; 1670 1671 switch (xfertype) { 1672 case UE_CONTROL: 1673 pipe->methods = &ohci_device_ctrl_methods; 1674 err = usb_allocmem(&sc->sc_bus, 1675 sizeof(usb_device_request_t), 1676 0, &opipe->u.ctl.reqdma); 1677 if (err) 1678 goto bad; 1679 s = splusb(); 1680 ohci_add_ed(sed, sc->sc_ctrl_head); 1681 splx(s); 1682 break; 1683 case UE_INTERRUPT: 1684 pipe->methods = &ohci_device_intr_methods; 1685 ival = pipe->interval; 1686 if (ival == USBD_DEFAULT_INTERVAL) 1687 ival = ed->bInterval; 1688 return (ohci_device_setintr(sc, opipe, ival)); 1689 case UE_ISOCHRONOUS: 1690 pipe->methods = &ohci_device_isoc_methods; 1691 return (ohci_setup_isoc(pipe)); 1692 case UE_BULK: 1693 pipe->methods = &ohci_device_bulk_methods; 1694 s = splusb(); 1695 ohci_add_ed(sed, sc->sc_bulk_head); 1696 splx(s); 1697 break; 1698 } 1699 } 1700 return (USBD_NORMAL_COMPLETION); 1701 1702 bad: 1703 ohci_free_std(sc, std); 1704 bad1: 1705 ohci_free_sed(sc, sed); 1706 bad0: 1707 return (USBD_NOMEM); 1708 1709 } 1710 1711 /* 1712 * Close a reqular pipe. 1713 * Assumes that there are no pending transactions. 1714 */ 1715 void 1716 ohci_close_pipe(pipe, head) 1717 usbd_pipe_handle pipe; 1718 ohci_soft_ed_t *head; 1719 { 1720 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1721 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1722 ohci_soft_ed_t *sed = opipe->sed; 1723 int s; 1724 1725 s = splusb(); 1726 #ifdef DIAGNOSTIC 1727 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 1728 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1729 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) { 1730 ohci_physaddr_t td = sed->ed.ed_headp; 1731 ohci_soft_td_t *std; 1732 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1733 std != NULL; 1734 std = LIST_NEXT(std, hnext)) 1735 if (std->physaddr == td) 1736 break; 1737 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1738 "tl=0x%x pipe=%p, std=%p\n", sed, 1739 (int)LE(sed->ed.ed_headp), (int)LE(sed->ed.ed_tailp), 1740 pipe, std); 1741 usb_delay_ms(&sc->sc_bus, 2); 1742 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1743 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 1744 printf("ohci_close_pipe: pipe still not empty\n"); 1745 } 1746 #endif 1747 ohci_rem_ed(sed, head); 1748 splx(s); 1749 ohci_free_sed(sc, opipe->sed); 1750 } 1751 1752 /* 1753 * Abort a device request. 1754 * If this routine is called at splusb() it guarantees that the request 1755 * will be removed from the hardware scheduling and that the callback 1756 * for it will be called with USBD_CANCELLED status. 1757 * It's impossible to guarantee that the requested transfer will not 1758 * have happened since the hardware runs concurrently. 1759 * If the transaction has already happened we rely on the ordinary 1760 * interrupt processing to process it. 1761 */ 1762 void 1763 ohci_abort_xfer(xfer, status) 1764 usbd_xfer_handle xfer; 1765 usbd_status status; 1766 { 1767 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1768 ohci_soft_ed_t *sed; 1769 1770 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1771 1772 xfer->status = status; 1773 1774 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1775 1776 sed = opipe->sed; 1777 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1778 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); /* force hardware skip */ 1779 1780 #if 1 1781 if (xfer->device->bus->intr_context) { 1782 /* We have no process context, so we can't use tsleep(). */ 1783 timeout(ohci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1784 } else { 1785 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1786 KASSERT(intr_nesting_level == 0, 1787 ("ohci_abort_req in interrupt context")); 1788 #endif 1789 usb_delay_ms(opipe->pipe.device->bus, 1); 1790 ohci_abort_xfer_end(xfer); 1791 } 1792 #else 1793 delay(1000); 1794 ohci_abort_xfer_end(xfer); 1795 #endif 1796 } 1797 1798 void 1799 ohci_abort_xfer_end(v) 1800 void *v; 1801 { 1802 usbd_xfer_handle xfer = v; 1803 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1804 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1805 ohci_soft_ed_t *sed; 1806 ohci_soft_td_t *p, *n; 1807 int s; 1808 1809 s = splusb(); 1810 1811 p = xfer->hcpriv; 1812 #ifdef DIAGNOSTIC 1813 if (p == NULL) { 1814 printf("ohci_abort_xfer: hcpriv==0\n"); 1815 return; 1816 } 1817 #endif 1818 for (; p->xfer == xfer; p = n) { 1819 n = p->nexttd; 1820 ohci_hash_rem_td(sc, p); 1821 ohci_free_std(sc, p); 1822 } 1823 1824 sed = opipe->sed; 1825 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 1826 (int)LE(p->physaddr), (int)LE(sed->ed.ed_tailp))); 1827 sed->ed.ed_headp = p->physaddr; /* unlink TDs */ 1828 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); /* remove hardware skip */ 1829 1830 usb_transfer_complete(xfer); 1831 1832 splx(s); 1833 } 1834 1835 /* 1836 * Data structures and routines to emulate the root hub. 1837 */ 1838 static usb_device_descriptor_t ohci_devd = { 1839 USB_DEVICE_DESCRIPTOR_SIZE, 1840 UDESC_DEVICE, /* type */ 1841 {0x00, 0x01}, /* USB version */ 1842 UCLASS_HUB, /* class */ 1843 USUBCLASS_HUB, /* subclass */ 1844 0, /* protocol */ 1845 64, /* max packet */ 1846 {0},{0},{0x00,0x01}, /* device id */ 1847 1,2,0, /* string indicies */ 1848 1 /* # of configurations */ 1849 }; 1850 1851 static usb_config_descriptor_t ohci_confd = { 1852 USB_CONFIG_DESCRIPTOR_SIZE, 1853 UDESC_CONFIG, 1854 {USB_CONFIG_DESCRIPTOR_SIZE + 1855 USB_INTERFACE_DESCRIPTOR_SIZE + 1856 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1857 1, 1858 1, 1859 0, 1860 UC_SELF_POWERED, 1861 0 /* max power */ 1862 }; 1863 1864 static usb_interface_descriptor_t ohci_ifcd = { 1865 USB_INTERFACE_DESCRIPTOR_SIZE, 1866 UDESC_INTERFACE, 1867 0, 1868 0, 1869 1, 1870 UCLASS_HUB, 1871 USUBCLASS_HUB, 1872 0, 1873 0 1874 }; 1875 1876 static usb_endpoint_descriptor_t ohci_endpd = { 1877 USB_ENDPOINT_DESCRIPTOR_SIZE, 1878 UDESC_ENDPOINT, 1879 UE_DIR_IN | OHCI_INTR_ENDPT, 1880 UE_INTERRUPT, 1881 {8, 0}, /* max packet */ 1882 255 1883 }; 1884 1885 static usb_hub_descriptor_t ohci_hubd = { 1886 USB_HUB_DESCRIPTOR_SIZE, 1887 UDESC_HUB, 1888 0, 1889 {0,0}, 1890 0, 1891 0, 1892 {0}, 1893 }; 1894 1895 static int 1896 ohci_str(p, l, s) 1897 usb_string_descriptor_t *p; 1898 int l; 1899 char *s; 1900 { 1901 int i; 1902 1903 if (l == 0) 1904 return (0); 1905 p->bLength = 2 * strlen(s) + 2; 1906 if (l == 1) 1907 return (1); 1908 p->bDescriptorType = UDESC_STRING; 1909 l -= 2; 1910 for (i = 0; s[i] && l > 1; i++, l -= 2) 1911 USETW2(p->bString[i], 0, s[i]); 1912 return (2*i+2); 1913 } 1914 1915 /* 1916 * Simulate a hardware hub by handling all the necessary requests. 1917 */ 1918 static usbd_status 1919 ohci_root_ctrl_transfer(xfer) 1920 usbd_xfer_handle xfer; 1921 { 1922 usbd_status err; 1923 1924 /* Insert last in queue. */ 1925 err = usb_insert_transfer(xfer); 1926 if (err) 1927 return (err); 1928 1929 /* Pipe isn't running, start first */ 1930 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1931 } 1932 1933 static usbd_status 1934 ohci_root_ctrl_start(xfer) 1935 usbd_xfer_handle xfer; 1936 { 1937 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 1938 usb_device_request_t *req; 1939 void *buf = NULL; 1940 int port, i; 1941 int s, len, value, index, l, totlen = 0; 1942 usb_port_status_t ps; 1943 usb_hub_descriptor_t hubd; 1944 usbd_status err; 1945 u_int32_t v; 1946 1947 #ifdef DIAGNOSTIC 1948 if (!(xfer->rqflags & URQ_REQUEST)) 1949 /* XXX panic */ 1950 return (USBD_INVAL); 1951 #endif 1952 req = &xfer->request; 1953 1954 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 1955 req->bmRequestType, req->bRequest)); 1956 1957 len = UGETW(req->wLength); 1958 value = UGETW(req->wValue); 1959 index = UGETW(req->wIndex); 1960 1961 if (len != 0) 1962 buf = KERNADDR(&xfer->dmabuf); 1963 1964 #define C(x,y) ((x) | ((y) << 8)) 1965 switch(C(req->bRequest, req->bmRequestType)) { 1966 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1967 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1968 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1969 /* 1970 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1971 * for the integrated root hub. 1972 */ 1973 break; 1974 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1975 if (len > 0) { 1976 *(u_int8_t *)buf = sc->sc_conf; 1977 totlen = 1; 1978 } 1979 break; 1980 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1981 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 1982 switch(value >> 8) { 1983 case UDESC_DEVICE: 1984 if ((value & 0xff) != 0) { 1985 err = USBD_IOERROR; 1986 goto ret; 1987 } 1988 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1989 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 1990 memcpy(buf, &ohci_devd, l); 1991 break; 1992 case UDESC_CONFIG: 1993 if ((value & 0xff) != 0) { 1994 err = USBD_IOERROR; 1995 goto ret; 1996 } 1997 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 1998 memcpy(buf, &ohci_confd, l); 1999 buf = (char *)buf + l; 2000 len -= l; 2001 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2002 totlen += l; 2003 memcpy(buf, &ohci_ifcd, l); 2004 buf = (char *)buf + l; 2005 len -= l; 2006 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2007 totlen += l; 2008 memcpy(buf, &ohci_endpd, l); 2009 break; 2010 case UDESC_STRING: 2011 if (len == 0) 2012 break; 2013 *(u_int8_t *)buf = 0; 2014 totlen = 1; 2015 switch (value & 0xff) { 2016 case 1: /* Vendor */ 2017 totlen = ohci_str(buf, len, sc->sc_vendor); 2018 break; 2019 case 2: /* Product */ 2020 totlen = ohci_str(buf, len, "OHCI root hub"); 2021 break; 2022 } 2023 break; 2024 default: 2025 err = USBD_IOERROR; 2026 goto ret; 2027 } 2028 break; 2029 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2030 if (len > 0) { 2031 *(u_int8_t *)buf = 0; 2032 totlen = 1; 2033 } 2034 break; 2035 case C(UR_GET_STATUS, UT_READ_DEVICE): 2036 if (len > 1) { 2037 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2038 totlen = 2; 2039 } 2040 break; 2041 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2042 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2043 if (len > 1) { 2044 USETW(((usb_status_t *)buf)->wStatus, 0); 2045 totlen = 2; 2046 } 2047 break; 2048 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2049 if (value >= USB_MAX_DEVICES) { 2050 err = USBD_IOERROR; 2051 goto ret; 2052 } 2053 sc->sc_addr = value; 2054 break; 2055 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2056 if (value != 0 && value != 1) { 2057 err = USBD_IOERROR; 2058 goto ret; 2059 } 2060 sc->sc_conf = value; 2061 break; 2062 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2063 break; 2064 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2065 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2066 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2067 err = USBD_IOERROR; 2068 goto ret; 2069 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2070 break; 2071 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2072 break; 2073 /* Hub requests */ 2074 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2075 break; 2076 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2077 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2078 "port=%d feature=%d\n", 2079 index, value)); 2080 if (index < 1 || index > sc->sc_noport) { 2081 err = USBD_IOERROR; 2082 goto ret; 2083 } 2084 port = OHCI_RH_PORT_STATUS(index); 2085 switch(value) { 2086 case UHF_PORT_ENABLE: 2087 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2088 break; 2089 case UHF_PORT_SUSPEND: 2090 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2091 break; 2092 case UHF_PORT_POWER: 2093 OWRITE4(sc, port, UPS_LOW_SPEED); 2094 break; 2095 case UHF_C_PORT_CONNECTION: 2096 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2097 break; 2098 case UHF_C_PORT_ENABLE: 2099 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2100 break; 2101 case UHF_C_PORT_SUSPEND: 2102 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2103 break; 2104 case UHF_C_PORT_OVER_CURRENT: 2105 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2106 break; 2107 case UHF_C_PORT_RESET: 2108 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2109 break; 2110 default: 2111 err = USBD_IOERROR; 2112 goto ret; 2113 } 2114 switch(value) { 2115 case UHF_C_PORT_CONNECTION: 2116 case UHF_C_PORT_ENABLE: 2117 case UHF_C_PORT_SUSPEND: 2118 case UHF_C_PORT_OVER_CURRENT: 2119 case UHF_C_PORT_RESET: 2120 /* Enable RHSC interrupt if condition is cleared. */ 2121 if ((OREAD4(sc, port) >> 16) == 0) 2122 ohci_rhsc_able(sc, 1); 2123 break; 2124 default: 2125 break; 2126 } 2127 break; 2128 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2129 if (value != 0) { 2130 err = USBD_IOERROR; 2131 goto ret; 2132 } 2133 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2134 hubd = ohci_hubd; 2135 hubd.bNbrPorts = sc->sc_noport; 2136 USETW(hubd.wHubCharacteristics, 2137 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2138 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2139 /* XXX overcurrent */ 2140 ); 2141 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2142 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2143 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2144 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2145 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2146 l = min(len, hubd.bDescLength); 2147 totlen = l; 2148 memcpy(buf, &hubd, l); 2149 break; 2150 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2151 if (len != 4) { 2152 err = USBD_IOERROR; 2153 goto ret; 2154 } 2155 memset(buf, 0, len); /* ? XXX */ 2156 totlen = len; 2157 break; 2158 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2159 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2160 index)); 2161 if (index < 1 || index > sc->sc_noport) { 2162 err = USBD_IOERROR; 2163 goto ret; 2164 } 2165 if (len != 4) { 2166 err = USBD_IOERROR; 2167 goto ret; 2168 } 2169 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2170 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2171 v)); 2172 USETW(ps.wPortStatus, v); 2173 USETW(ps.wPortChange, v >> 16); 2174 l = min(len, sizeof ps); 2175 memcpy(buf, &ps, l); 2176 totlen = l; 2177 break; 2178 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2179 err = USBD_IOERROR; 2180 goto ret; 2181 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2182 break; 2183 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2184 if (index < 1 || index > sc->sc_noport) { 2185 err = USBD_IOERROR; 2186 goto ret; 2187 } 2188 port = OHCI_RH_PORT_STATUS(index); 2189 switch(value) { 2190 case UHF_PORT_ENABLE: 2191 OWRITE4(sc, port, UPS_PORT_ENABLED); 2192 break; 2193 case UHF_PORT_SUSPEND: 2194 OWRITE4(sc, port, UPS_SUSPEND); 2195 break; 2196 case UHF_PORT_RESET: 2197 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2198 index)); 2199 OWRITE4(sc, port, UPS_RESET); 2200 for (i = 0; i < 10; i++) { 2201 usb_delay_ms(&sc->sc_bus, 10); 2202 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2203 break; 2204 } 2205 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2206 index, OREAD4(sc, port))); 2207 break; 2208 case UHF_PORT_POWER: 2209 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2210 "%d\n", index)); 2211 OWRITE4(sc, port, UPS_PORT_POWER); 2212 break; 2213 default: 2214 err = USBD_IOERROR; 2215 goto ret; 2216 } 2217 break; 2218 default: 2219 err = USBD_IOERROR; 2220 goto ret; 2221 } 2222 xfer->actlen = totlen; 2223 err = USBD_NORMAL_COMPLETION; 2224 ret: 2225 xfer->status = err; 2226 s = splusb(); 2227 usb_transfer_complete(xfer); 2228 splx(s); 2229 return (USBD_IN_PROGRESS); 2230 } 2231 2232 /* Abort a root control request. */ 2233 static void 2234 ohci_root_ctrl_abort(xfer) 2235 usbd_xfer_handle xfer; 2236 { 2237 /* Nothing to do, all transfers are synchronous. */ 2238 } 2239 2240 /* Close the root pipe. */ 2241 static void 2242 ohci_root_ctrl_close(pipe) 2243 usbd_pipe_handle pipe; 2244 { 2245 DPRINTF(("ohci_root_ctrl_close\n")); 2246 /* Nothing to do. */ 2247 } 2248 2249 static usbd_status 2250 ohci_root_intr_transfer(xfer) 2251 usbd_xfer_handle xfer; 2252 { 2253 usbd_status err; 2254 2255 /* Insert last in queue. */ 2256 err = usb_insert_transfer(xfer); 2257 if (err) 2258 return (err); 2259 2260 /* Pipe isn't running, start first */ 2261 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2262 } 2263 2264 static usbd_status 2265 ohci_root_intr_start(xfer) 2266 usbd_xfer_handle xfer; 2267 { 2268 usbd_pipe_handle pipe = xfer->pipe; 2269 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2270 2271 sc->sc_intrxfer = xfer; 2272 2273 return (USBD_IN_PROGRESS); 2274 } 2275 2276 /* Abort a root interrupt request. */ 2277 static void 2278 ohci_root_intr_abort(xfer) 2279 usbd_xfer_handle xfer; 2280 { 2281 int s; 2282 2283 if (xfer->pipe->intrxfer == xfer) { 2284 DPRINTF(("ohci_root_intr_abort: remove\n")); 2285 xfer->pipe->intrxfer = NULL; 2286 } 2287 xfer->status = USBD_CANCELLED; 2288 s = splusb(); 2289 usb_transfer_complete(xfer); 2290 splx(s); 2291 } 2292 2293 /* Close the root pipe. */ 2294 static void 2295 ohci_root_intr_close(pipe) 2296 usbd_pipe_handle pipe; 2297 { 2298 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2299 2300 DPRINTF(("ohci_root_intr_close\n")); 2301 2302 sc->sc_intrxfer = NULL; 2303 } 2304 2305 /************************/ 2306 2307 static usbd_status 2308 ohci_device_ctrl_transfer(xfer) 2309 usbd_xfer_handle xfer; 2310 { 2311 usbd_status err; 2312 2313 /* Insert last in queue. */ 2314 err = usb_insert_transfer(xfer); 2315 if (err) 2316 return (err); 2317 2318 /* Pipe isn't running, start first */ 2319 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2320 } 2321 2322 static usbd_status 2323 ohci_device_ctrl_start(xfer) 2324 usbd_xfer_handle xfer; 2325 { 2326 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2327 usbd_status err; 2328 2329 #ifdef DIAGNOSTIC 2330 if (!(xfer->rqflags & URQ_REQUEST)) { 2331 /* XXX panic */ 2332 printf("ohci_device_ctrl_transfer: not a request\n"); 2333 return (USBD_INVAL); 2334 } 2335 #endif 2336 2337 err = ohci_device_request(xfer); 2338 if (err) 2339 return (err); 2340 2341 if (sc->sc_bus.use_polling) 2342 ohci_waitintr(sc, xfer); 2343 return (USBD_IN_PROGRESS); 2344 } 2345 2346 /* Abort a device control request. */ 2347 static void 2348 ohci_device_ctrl_abort(xfer) 2349 usbd_xfer_handle xfer; 2350 { 2351 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2352 ohci_abort_xfer(xfer, USBD_CANCELLED); 2353 } 2354 2355 /* Close a device control pipe. */ 2356 static void 2357 ohci_device_ctrl_close(pipe) 2358 usbd_pipe_handle pipe; 2359 { 2360 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2361 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2362 2363 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2364 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2365 ohci_free_std(sc, opipe->tail.td); 2366 } 2367 2368 /************************/ 2369 2370 static void 2371 ohci_device_clear_toggle(pipe) 2372 usbd_pipe_handle pipe; 2373 { 2374 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2375 2376 opipe->sed->ed.ed_headp &= LE(~OHCI_TOGGLECARRY); 2377 } 2378 2379 static void 2380 ohci_noop(pipe) 2381 usbd_pipe_handle pipe; 2382 { 2383 } 2384 2385 static usbd_status 2386 ohci_device_bulk_transfer(xfer) 2387 usbd_xfer_handle xfer; 2388 { 2389 usbd_status err; 2390 2391 /* Insert last in queue. */ 2392 err = usb_insert_transfer(xfer); 2393 if (err) 2394 return (err); 2395 2396 /* Pipe isn't running, start first */ 2397 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2398 } 2399 2400 static usbd_status 2401 ohci_device_bulk_start(xfer) 2402 usbd_xfer_handle xfer; 2403 { 2404 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2405 usbd_device_handle dev = opipe->pipe.device; 2406 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2407 int addr = dev->address; 2408 ohci_soft_td_t *data, *tail, *tdp; 2409 ohci_soft_ed_t *sed; 2410 int s, len, isread, endpt; 2411 usbd_status err; 2412 2413 #ifdef DIAGNOSTIC 2414 if (xfer->rqflags & URQ_REQUEST) { 2415 /* XXX panic */ 2416 printf("ohci_device_bulk_start: a request\n"); 2417 return (USBD_INVAL); 2418 } 2419 #endif 2420 2421 len = xfer->length; 2422 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2423 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2424 sed = opipe->sed; 2425 2426 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2427 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2428 endpt)); 2429 2430 opipe->u.bulk.isread = isread; 2431 opipe->u.bulk.length = len; 2432 2433 /* Update device address */ 2434 sed->ed.ed_flags = LE( 2435 (LE(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2436 OHCI_ED_SET_FA(addr)); 2437 2438 /* Allocate a chain of new TDs (including a new tail). */ 2439 data = opipe->tail.td; 2440 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags, 2441 &xfer->dmabuf, data, &tail); 2442 if (err) 2443 return (err); 2444 2445 tail->xfer = NULL; 2446 xfer->hcpriv = data; 2447 2448 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2449 "td_cbp=0x%08x td_be=0x%08x\n", 2450 (int)LE(sed->ed.ed_flags), (int)LE(data->td.td_flags), 2451 (int)LE(data->td.td_cbp), (int)LE(data->td.td_be))); 2452 2453 #ifdef OHCI_DEBUG 2454 if (ohcidebug > 4) { 2455 ohci_dump_ed(sed); 2456 ohci_dump_tds(data); 2457 } 2458 #endif 2459 2460 /* Insert ED in schedule */ 2461 s = splusb(); 2462 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2463 tdp->xfer = xfer; 2464 ohci_hash_add_td(sc, tdp); 2465 } 2466 sed->ed.ed_tailp = LE(tail->physaddr); 2467 opipe->tail.td = tail; 2468 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2469 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2470 if (xfer->timeout && !sc->sc_bus.use_polling) { 2471 usb_timeout(ohci_timeout, xfer, 2472 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 2473 } 2474 2475 #if 0 2476 /* This goes wrong if we are too slow. */ 2477 if (ohcidebug > 5) { 2478 usb_delay_ms(&sc->sc_bus, 5); 2479 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2480 OREAD4(sc, OHCI_COMMAND_STATUS))); 2481 ohci_dump_ed(sed); 2482 ohci_dump_tds(data); 2483 } 2484 #endif 2485 2486 splx(s); 2487 2488 return (USBD_IN_PROGRESS); 2489 } 2490 2491 static void 2492 ohci_device_bulk_abort(xfer) 2493 usbd_xfer_handle xfer; 2494 { 2495 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2496 ohci_abort_xfer(xfer, USBD_CANCELLED); 2497 } 2498 2499 /* 2500 * Close a device bulk pipe. 2501 */ 2502 static void 2503 ohci_device_bulk_close(pipe) 2504 usbd_pipe_handle pipe; 2505 { 2506 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2507 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2508 2509 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2510 ohci_close_pipe(pipe, sc->sc_bulk_head); 2511 ohci_free_std(sc, opipe->tail.td); 2512 } 2513 2514 /************************/ 2515 2516 static usbd_status 2517 ohci_device_intr_transfer(xfer) 2518 usbd_xfer_handle xfer; 2519 { 2520 usbd_status err; 2521 2522 /* Insert last in queue. */ 2523 err = usb_insert_transfer(xfer); 2524 if (err) 2525 return (err); 2526 2527 /* Pipe isn't running, start first */ 2528 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2529 } 2530 2531 static usbd_status 2532 ohci_device_intr_start(xfer) 2533 usbd_xfer_handle xfer; 2534 { 2535 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2536 usbd_device_handle dev = opipe->pipe.device; 2537 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2538 ohci_soft_ed_t *sed = opipe->sed; 2539 ohci_soft_td_t *data, *tail; 2540 int len; 2541 int s; 2542 2543 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2544 "flags=%d priv=%p\n", 2545 xfer, xfer->length, xfer->flags, xfer->priv)); 2546 2547 #ifdef DIAGNOSTIC 2548 if (xfer->rqflags & URQ_REQUEST) 2549 panic("ohci_device_intr_transfer: a request\n"); 2550 #endif 2551 2552 len = xfer->length; 2553 2554 data = opipe->tail.td; 2555 tail = ohci_alloc_std(sc); 2556 if (tail == NULL) 2557 return (USBD_NOMEM); 2558 tail->xfer = NULL; 2559 2560 data->td.td_flags = LE( 2561 OHCI_TD_IN | OHCI_TD_NOCC | 2562 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2563 if (xfer->flags & USBD_SHORT_XFER_OK) 2564 data->td.td_flags |= LE(OHCI_TD_R); 2565 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 2566 data->nexttd = tail; 2567 data->td.td_nexttd = LE(tail->physaddr); 2568 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 2569 data->len = len; 2570 data->xfer = xfer; 2571 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2572 xfer->hcpriv = data; 2573 2574 #ifdef OHCI_DEBUG 2575 if (ohcidebug > 5) { 2576 DPRINTF(("ohci_device_intr_transfer:\n")); 2577 ohci_dump_ed(sed); 2578 ohci_dump_tds(data); 2579 } 2580 #endif 2581 2582 /* Insert ED in schedule */ 2583 s = splusb(); 2584 ohci_hash_add_td(sc, data); 2585 sed->ed.ed_tailp = LE(tail->physaddr); 2586 opipe->tail.td = tail; 2587 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2588 2589 #if 0 2590 /* 2591 * This goes horribly wrong, printing thousands of descriptors, 2592 * because false references are followed due to the fact that the 2593 * TD is gone. 2594 */ 2595 if (ohcidebug > 5) { 2596 usb_delay_ms(&sc->sc_bus, 5); 2597 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2598 OREAD4(sc, OHCI_COMMAND_STATUS))); 2599 ohci_dump_ed(sed); 2600 ohci_dump_tds(data); 2601 } 2602 #endif 2603 splx(s); 2604 2605 return (USBD_IN_PROGRESS); 2606 } 2607 2608 /* Abort a device control request. */ 2609 static void 2610 ohci_device_intr_abort(xfer) 2611 usbd_xfer_handle xfer; 2612 { 2613 if (xfer->pipe->intrxfer == xfer) { 2614 DPRINTF(("ohci_device_intr_abort: remove\n")); 2615 xfer->pipe->intrxfer = NULL; 2616 } 2617 ohci_abort_xfer(xfer, USBD_CANCELLED); 2618 } 2619 2620 /* Close a device interrupt pipe. */ 2621 static void 2622 ohci_device_intr_close(pipe) 2623 usbd_pipe_handle pipe; 2624 { 2625 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2626 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2627 int nslots = opipe->u.intr.nslots; 2628 int pos = opipe->u.intr.pos; 2629 int j; 2630 ohci_soft_ed_t *p, *sed = opipe->sed; 2631 int s; 2632 2633 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2634 pipe, nslots, pos)); 2635 s = splusb(); 2636 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 2637 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 2638 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 2639 usb_delay_ms(&sc->sc_bus, 2); 2640 2641 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2642 ; 2643 #ifdef DIAGNOSTIC 2644 if (p == NULL) 2645 panic("ohci_device_intr_close: ED not found\n"); 2646 #endif 2647 p->next = sed->next; 2648 p->ed.ed_nexted = sed->ed.ed_nexted; 2649 splx(s); 2650 2651 for (j = 0; j < nslots; j++) 2652 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2653 2654 ohci_free_std(sc, opipe->tail.td); 2655 ohci_free_sed(sc, opipe->sed); 2656 } 2657 2658 static usbd_status 2659 ohci_device_setintr(sc, opipe, ival) 2660 ohci_softc_t *sc; 2661 struct ohci_pipe *opipe; 2662 int ival; 2663 { 2664 int i, j, s, best; 2665 u_int npoll, slow, shigh, nslots; 2666 u_int bestbw, bw; 2667 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2668 2669 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2670 if (ival == 0) { 2671 printf("ohci_setintr: 0 interval\n"); 2672 return (USBD_INVAL); 2673 } 2674 2675 npoll = OHCI_NO_INTRS; 2676 while (npoll > ival) 2677 npoll /= 2; 2678 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2679 2680 /* 2681 * We now know which level in the tree the ED must go into. 2682 * Figure out which slot has most bandwidth left over. 2683 * Slots to examine: 2684 * npoll 2685 * 1 0 2686 * 2 1 2 2687 * 4 3 4 5 6 2688 * 8 7 8 9 10 11 12 13 14 2689 * N (N-1) .. (N-1+N-1) 2690 */ 2691 slow = npoll-1; 2692 shigh = slow + npoll; 2693 nslots = OHCI_NO_INTRS / npoll; 2694 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2695 bw = 0; 2696 for (j = 0; j < nslots; j++) 2697 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2698 if (bw < bestbw) { 2699 best = i; 2700 bestbw = bw; 2701 } 2702 } 2703 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2704 best, slow, shigh, bestbw)); 2705 2706 s = splusb(); 2707 hsed = sc->sc_eds[best]; 2708 sed->next = hsed->next; 2709 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2710 hsed->next = sed; 2711 hsed->ed.ed_nexted = LE(sed->physaddr); 2712 splx(s); 2713 2714 for (j = 0; j < nslots; j++) 2715 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2716 opipe->u.intr.nslots = nslots; 2717 opipe->u.intr.pos = best; 2718 2719 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2720 return (USBD_NORMAL_COMPLETION); 2721 } 2722 2723 /***********************/ 2724 2725 usbd_status 2726 ohci_device_isoc_transfer(xfer) 2727 usbd_xfer_handle xfer; 2728 { 2729 usbd_status err; 2730 2731 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2732 2733 /* Put it on our queue, */ 2734 err = usb_insert_transfer(xfer); 2735 2736 /* bail out on error, */ 2737 if (err && err != USBD_IN_PROGRESS) 2738 return (err); 2739 2740 /* XXX should check inuse here */ 2741 2742 /* insert into schedule, */ 2743 ohci_device_isoc_enter(xfer); 2744 2745 /* and put on interrupt list if the pipe wasn't running */ 2746 if (!err) 2747 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2748 2749 return (err); 2750 } 2751 2752 void 2753 ohci_device_isoc_enter(xfer) 2754 usbd_xfer_handle xfer; 2755 { 2756 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2757 usbd_device_handle dev = opipe->pipe.device; 2758 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2759 ohci_soft_ed_t *sed = opipe->sed; 2760 struct iso *iso = &opipe->u.iso; 2761 ohci_soft_itd_t *sitd, *nsitd; 2762 ohci_physaddr_t buf, offs; 2763 int i, ncur, nframes; 2764 int ncross; 2765 int s; 2766 2767 s = splusb(); 2768 sitd = opipe->tail.itd; 2769 buf = DMAADDR(&xfer->dmabuf); 2770 sitd->itd.itd_bp0 = LE(buf & OHCI_ITD_PAGE_MASK); 2771 nframes = xfer->nframes; 2772 offs = buf & OHCI_ITD_OFFSET_MASK; 2773 for (i = ncur = 0; i < nframes; i++, ncur++) { 2774 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2775 ncross > 1) { /* too many page crossings */ 2776 2777 nsitd = ohci_alloc_sitd(sc); 2778 if (nsitd == NULL) { 2779 /* XXX what now? */ 2780 return; 2781 } 2782 sitd->nextitd = nsitd; 2783 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2784 sitd->itd.itd_flags = LE( 2785 OHCI_ITD_NOCC | 2786 OHCI_ITD_SET_SF(iso->next) | 2787 OHCI_ITD_NOINTR | 2788 OHCI_ITD_SET_FC(OHCI_ITD_NOFFSET)); 2789 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2790 nsitd->itd.itd_bp0 = LE((buf + offs) & OHCI_ITD_PAGE_MASK); 2791 sitd = nsitd; 2792 iso->next = iso->next + ncur; 2793 ncur = 0; 2794 ncross = 0; 2795 } 2796 /* XXX byte order */ 2797 sitd->itd.itd_offset[i] = 2798 offs | (ncross == 1 ? OHCI_ITD_PAGE_SELECT : 0); 2799 offs += xfer->frlengths[i]; 2800 /* XXX update ncross */ 2801 } 2802 nsitd = ohci_alloc_sitd(sc); 2803 if (nsitd == NULL) { 2804 /* XXX what now? */ 2805 return; 2806 } 2807 sitd->nextitd = nsitd; 2808 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2809 sitd->itd.itd_flags = LE( 2810 OHCI_ITD_NOCC | 2811 OHCI_ITD_SET_SF(iso->next) | 2812 OHCI_ITD_SET_DI(0) | 2813 OHCI_ITD_SET_FC(ncur)); 2814 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2815 iso->next = iso->next + ncur; 2816 2817 opipe->tail.itd = nsitd; 2818 sed->ed.ed_tailp = LE(nsitd->physaddr); 2819 /* XXX update ED */ 2820 splx(s); 2821 } 2822 2823 usbd_status 2824 ohci_device_isoc_start(xfer) 2825 usbd_xfer_handle xfer; 2826 { 2827 printf("ohci_device_isoc_start: not implemented\n"); 2828 return (USBD_INVAL); 2829 } 2830 2831 void 2832 ohci_device_isoc_abort(xfer) 2833 usbd_xfer_handle xfer; 2834 { 2835 } 2836 2837 void 2838 ohci_device_isoc_done(xfer) 2839 usbd_xfer_handle xfer; 2840 { 2841 printf("ohci_device_isoc_done: not implemented\n"); 2842 } 2843 2844 usbd_status 2845 ohci_setup_isoc(pipe) 2846 usbd_pipe_handle pipe; 2847 { 2848 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2849 struct iso *iso = &opipe->u.iso; 2850 2851 iso->next = -1; 2852 iso->inuse = 0; 2853 2854 return (USBD_NORMAL_COMPLETION); 2855 } 2856 2857 void 2858 ohci_device_isoc_close(pipe) 2859 usbd_pipe_handle pipe; 2860 { 2861 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2862 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2863 2864 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 2865 ohci_close_pipe(pipe, sc->sc_isoc_head); 2866 ohci_free_sitd(sc, opipe->tail.itd); 2867 } 2868
Indexes created Fri Sep 26 20:09:58 GMT 2025