uhci.c revision 1.96
1 /* $NetBSD: uhci.c,v 1.96 2000/03/25 18:02:32 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 46 * USB spec: http://www.usb.org/developers/data/usb11.pdf 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 #if defined(__FreeBSD__) 82 #include <machine/clock.h> 83 84 #define delay(d) DELAY(d) 85 #endif 86 87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 88 89 #if defined(__OpenBSD__) 90 struct cfdriver uhci_cd = { 91 NULL, "uhci", DV_DULL 92 }; 93 #endif 94 95 #ifdef UHCI_DEBUG 96 uhci_softc_t *thesc; 97 #define DPRINTF(x) if (uhcidebug) printf x 98 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 99 int uhcidebug = 0; 100 #else 101 #define DPRINTF(x) 102 #define DPRINTFN(n,x) 103 #endif 104 105 /* 106 * The UHCI controller is little endian, so on big endian machines 107 * the data strored in memory needs to be swapped. 108 */ 109 #if defined(__FreeBSD__) 110 #if BYTE_ORDER == BIG_ENDIAN 111 #define htole32(x) (bswap32(x)) 112 #define le32toh(x) (bswap32(x)) 113 #else 114 #define htole32(x) (x) 115 #define le32toh(x) (x) 116 #endif 117 #endif 118 119 struct uhci_pipe { 120 struct usbd_pipe pipe; 121 int nexttoggle; 122 123 u_char aborting; 124 usbd_xfer_handle abortstart, abortend; 125 126 /* Info needed for different pipe kinds. */ 127 union { 128 /* Control pipe */ 129 struct { 130 uhci_soft_qh_t *sqh; 131 usb_dma_t reqdma; 132 uhci_soft_td_t *setup, *stat; 133 u_int length; 134 } ctl; 135 /* Interrupt pipe */ 136 struct { 137 int npoll; 138 uhci_soft_qh_t **qhs; 139 } intr; 140 /* Bulk pipe */ 141 struct { 142 uhci_soft_qh_t *sqh; 143 u_int length; 144 int isread; 145 } bulk; 146 /* Iso pipe */ 147 struct iso { 148 uhci_soft_td_t **stds; 149 int next, inuse; 150 } iso; 151 } u; 152 }; 153 154 static void uhci_busreset __P((uhci_softc_t *)); 155 static void uhci_shutdown __P((void *v)); 156 static void uhci_power __P((int, void *)); 157 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 158 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 159 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 160 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 161 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 162 #if 0 163 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 164 uhci_intr_info_t *)); 165 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 166 #endif 167 168 static void uhci_free_std_chain __P((uhci_softc_t *, 169 uhci_soft_td_t *, uhci_soft_td_t *)); 170 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 171 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 172 uhci_soft_td_t **, uhci_soft_td_t **)); 173 static void uhci_poll_hub __P((void *)); 174 static void uhci_waitintr __P((uhci_softc_t *, 175 usbd_xfer_handle)); 176 static void uhci_check_intr __P((uhci_softc_t *, 177 uhci_intr_info_t *)); 178 static void uhci_idone __P((uhci_intr_info_t *)); 179 180 static void uhci_abort_xfer __P((usbd_xfer_handle, 181 usbd_status status)); 182 static void uhci_abort_xfer_end __P((void *v)); 183 static void uhci_abort_unlink_qh __P((struct uhci_pipe *)); 184 static void uhci_abort_relink_qh __P((struct uhci_pipe *)); 185 static void uhci_cancel_abort __P((usbd_pipe_handle)); 186 187 static void uhci_timeout __P((void *)); 188 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 189 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 190 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 191 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 192 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 193 194 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 195 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 196 197 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 198 u_int32_t)); 199 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 200 201 static usbd_xfer_handle uhci_allocx __P((struct usbd_bus *)); 202 static void uhci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 203 204 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 205 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 206 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 207 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 208 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 209 210 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 211 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 212 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 213 static void uhci_device_intr_close __P((usbd_pipe_handle)); 214 static void uhci_device_intr_done __P((usbd_xfer_handle)); 215 216 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 217 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 218 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 219 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 220 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 221 222 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 223 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 224 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 225 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 226 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 227 228 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 229 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 230 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 231 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 232 static void uhci_root_ctrl_done __P((usbd_xfer_handle)); 233 234 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 235 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 236 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 237 static void uhci_root_intr_close __P((usbd_pipe_handle)); 238 static void uhci_root_intr_done __P((usbd_xfer_handle)); 239 240 static usbd_status uhci_open __P((usbd_pipe_handle)); 241 static void uhci_poll __P((struct usbd_bus *)); 242 static void uhci_softintr __P((struct usbd_bus *)); 243 244 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 245 246 static void uhci_add_intr __P((uhci_softc_t *, uhci_soft_qh_t *)); 247 static void uhci_remove_intr __P((uhci_softc_t*, uhci_soft_qh_t*)); 248 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 249 struct uhci_pipe *pipe, int ival)); 250 251 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 252 static void uhci_noop __P((usbd_pipe_handle pipe)); 253 254 static __inline__ uhci_soft_qh_t *uhci_find_prev_qh 255 __P((uhci_soft_qh_t *, uhci_soft_qh_t *)); 256 257 #ifdef UHCI_DEBUG 258 static void uhci_dumpregs __P((uhci_softc_t *)); 259 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 260 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 261 static void uhci_dump_tds __P((uhci_soft_td_t *)); 262 static void uhci_dump_td __P((uhci_soft_td_t *)); 263 static void uhci_dump_ii __P((uhci_intr_info_t *ii)); 264 #endif 265 266 #define UWRITE1(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 267 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 268 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 269 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 270 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 271 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 272 273 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 274 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 275 276 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 277 278 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 279 280 #define UHCI_INTR_ENDPT 1 281 282 struct usbd_bus_methods uhci_bus_methods = { 283 uhci_open, 284 uhci_softintr, 285 uhci_poll, 286 uhci_allocm, 287 uhci_freem, 288 uhci_allocx, 289 uhci_freex, 290 }; 291 292 struct usbd_pipe_methods uhci_root_ctrl_methods = { 293 uhci_root_ctrl_transfer, 294 uhci_root_ctrl_start, 295 uhci_root_ctrl_abort, 296 uhci_root_ctrl_close, 297 uhci_noop, 298 uhci_root_ctrl_done, 299 }; 300 301 struct usbd_pipe_methods uhci_root_intr_methods = { 302 uhci_root_intr_transfer, 303 uhci_root_intr_start, 304 uhci_root_intr_abort, 305 uhci_root_intr_close, 306 uhci_noop, 307 uhci_root_intr_done, 308 }; 309 310 struct usbd_pipe_methods uhci_device_ctrl_methods = { 311 uhci_device_ctrl_transfer, 312 uhci_device_ctrl_start, 313 uhci_device_ctrl_abort, 314 uhci_device_ctrl_close, 315 uhci_noop, 316 uhci_device_ctrl_done, 317 }; 318 319 struct usbd_pipe_methods uhci_device_intr_methods = { 320 uhci_device_intr_transfer, 321 uhci_device_intr_start, 322 uhci_device_intr_abort, 323 uhci_device_intr_close, 324 uhci_device_clear_toggle, 325 uhci_device_intr_done, 326 }; 327 328 struct usbd_pipe_methods uhci_device_bulk_methods = { 329 uhci_device_bulk_transfer, 330 uhci_device_bulk_start, 331 uhci_device_bulk_abort, 332 uhci_device_bulk_close, 333 uhci_device_clear_toggle, 334 uhci_device_bulk_done, 335 }; 336 337 struct usbd_pipe_methods uhci_device_isoc_methods = { 338 uhci_device_isoc_transfer, 339 uhci_device_isoc_start, 340 uhci_device_isoc_abort, 341 uhci_device_isoc_close, 342 uhci_noop, 343 uhci_device_isoc_done, 344 }; 345 346 #define uhci_add_intr_info(sc, ii) \ 347 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 348 #define uhci_del_intr_info(ii) \ 349 LIST_REMOVE((ii), list) 350 351 static __inline__ uhci_soft_qh_t * 352 uhci_find_prev_qh(pqh, sqh) 353 uhci_soft_qh_t *pqh, *sqh; 354 { 355 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 356 357 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 358 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 359 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 360 printf("uhci_find_qh: QH not found\n"); 361 return (NULL); 362 } 363 #endif 364 } 365 return (pqh); 366 } 367 368 void 369 uhci_busreset(sc) 370 uhci_softc_t *sc; 371 { 372 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 373 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 374 UHCICMD(sc, 0); /* do nothing */ 375 } 376 377 usbd_status 378 uhci_init(sc) 379 uhci_softc_t *sc; 380 { 381 usbd_status err; 382 int i, j; 383 uhci_soft_qh_t *csqh, *bsqh, *sqh; 384 uhci_soft_td_t *std; 385 386 DPRINTFN(1,("uhci_init: start\n")); 387 388 #ifdef UHCI_DEBUG 389 thesc = sc; 390 391 if (uhcidebug > 2) 392 uhci_dumpregs(sc); 393 #endif 394 395 uhci_run(sc, 0); /* stop the controller */ 396 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 397 398 uhci_busreset(sc); 399 400 /* Allocate and initialize real frame array. */ 401 err = usb_allocmem(&sc->sc_bus, 402 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 403 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 404 if (err) 405 return (err); 406 sc->sc_pframes = KERNADDR(&sc->sc_dma); 407 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 408 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 409 410 /* Allocate the dummy QH where bulk traffic will be queued. */ 411 bsqh = uhci_alloc_sqh(sc); 412 if (bsqh == NULL) 413 return (USBD_NOMEM); 414 bsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 415 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 416 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 417 418 /* Allocate the dummy QH where control traffic will be queued. */ 419 csqh = uhci_alloc_sqh(sc); 420 if (csqh == NULL) 421 return (USBD_NOMEM); 422 csqh->hlink = bsqh; 423 csqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_Q); 424 csqh->qh.qh_elink = htole32(UHCI_PTR_T); 425 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 426 427 /* 428 * Make all (virtual) frame list pointers point to the interrupt 429 * queue heads and the interrupt queue heads at the control 430 * queue head and point the physical frame list to the virtual. 431 */ 432 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 433 std = uhci_alloc_std(sc); 434 sqh = uhci_alloc_sqh(sc); 435 if (std == NULL || sqh == NULL) 436 return (USBD_NOMEM); 437 std->link.sqh = sqh; 438 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_Q); 439 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 440 std->td.td_token = htole32(0); 441 std->td.td_buffer = htole32(0); 442 sqh->hlink = csqh; 443 sqh->qh.qh_hlink = htole32(csqh->physaddr | UHCI_PTR_Q); 444 sqh->elink = 0; 445 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 446 sc->sc_vframes[i].htd = std; 447 sc->sc_vframes[i].etd = std; 448 sc->sc_vframes[i].hqh = sqh; 449 sc->sc_vframes[i].eqh = sqh; 450 for (j = i; 451 j < UHCI_FRAMELIST_COUNT; 452 j += UHCI_VFRAMELIST_COUNT) 453 sc->sc_pframes[j] = htole32(std->physaddr); 454 } 455 456 LIST_INIT(&sc->sc_intrhead); 457 458 SIMPLEQ_INIT(&sc->sc_free_xfers); 459 460 usb_callout_init(sc->sc_poll_handle); 461 462 /* Set up the bus struct. */ 463 sc->sc_bus.methods = &uhci_bus_methods; 464 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 465 466 #if defined(__NetBSD__) || defined(__OpenBSD__) 467 sc->sc_suspend = PWR_RESUME; 468 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 469 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 470 #endif 471 472 DPRINTFN(1,("uhci_init: enabling\n")); 473 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 474 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 475 476 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 477 478 return (uhci_run(sc, 1)); /* and here we go... */ 479 } 480 481 #if defined(__NetBSD__) || defined(__OpenBSD__) 482 int 483 uhci_activate(self, act) 484 device_ptr_t self; 485 enum devact act; 486 { 487 struct uhci_softc *sc = (struct uhci_softc *)self; 488 int rv = 0; 489 490 switch (act) { 491 case DVACT_ACTIVATE: 492 return (EOPNOTSUPP); 493 break; 494 495 case DVACT_DEACTIVATE: 496 if (sc->sc_child != NULL) 497 rv = config_deactivate(sc->sc_child); 498 break; 499 } 500 return (rv); 501 } 502 503 int 504 uhci_detach(sc, flags) 505 struct uhci_softc *sc; 506 int flags; 507 { 508 usbd_xfer_handle xfer; 509 int rv = 0; 510 511 if (sc->sc_child != NULL) 512 rv = config_detach(sc->sc_child, flags); 513 514 if (rv != 0) 515 return (rv); 516 517 #if defined(__NetBSD__) || defined(__OpenBSD__) 518 powerhook_disestablish(sc->sc_powerhook); 519 shutdownhook_disestablish(sc->sc_shutdownhook); 520 #endif 521 522 /* Free all xfers associated with this HC. */ 523 for (;;) { 524 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 525 if (xfer == NULL) 526 break; 527 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 528 free(xfer, M_USB); 529 } 530 531 /* XXX free other data structures XXX */ 532 533 return (rv); 534 } 535 #endif 536 537 usbd_status 538 uhci_allocm(bus, dma, size) 539 struct usbd_bus *bus; 540 usb_dma_t *dma; 541 u_int32_t size; 542 { 543 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 544 dma)); 545 } 546 547 void 548 uhci_freem(bus, dma) 549 struct usbd_bus *bus; 550 usb_dma_t *dma; 551 { 552 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 553 } 554 555 usbd_xfer_handle 556 uhci_allocx(bus) 557 struct usbd_bus *bus; 558 { 559 struct uhci_softc *sc = (struct uhci_softc *)bus; 560 usbd_xfer_handle xfer; 561 562 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 563 if (xfer != NULL) { 564 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 565 if (xfer->busy_free != XFER_FREE) { 566 printf("uhci_freex: xfer=%p not free, 0x%08x\n", xfer, 567 xfer->busy_free); 568 } 569 } else { 570 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 571 } 572 if (xfer != NULL) { 573 memset(xfer, 0, sizeof (struct uhci_xfer)); 574 UXFER(xfer)->iinfo.sc = sc; 575 #ifdef DIAGNOSTIC 576 UXFER(xfer)->iinfo.isdone = 1; 577 #endif 578 } 579 #ifdef DIAGNOSTIC 580 xfer->busy_free = XFER_BUSY; 581 #endif 582 return (xfer); 583 } 584 585 void 586 uhci_freex(bus, xfer) 587 struct usbd_bus *bus; 588 usbd_xfer_handle xfer; 589 { 590 struct uhci_softc *sc = (struct uhci_softc *)bus; 591 592 #ifdef DIAGNOSTIC 593 if (xfer->busy_free != XFER_BUSY) { 594 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 595 xfer->busy_free); 596 return; 597 } 598 xfer->busy_free = XFER_FREE; 599 if (!UXFER(xfer)->iinfo.isdone) 600 printf("uhci_freex: !isdone\n"); 601 #endif 602 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 603 } 604 605 /* 606 * Shut down the controller when the system is going down. 607 */ 608 void 609 uhci_shutdown(v) 610 void *v; 611 { 612 uhci_softc_t *sc = v; 613 614 DPRINTF(("uhci_shutdown: stopping the HC\n")); 615 uhci_run(sc, 0); /* stop the controller */ 616 } 617 618 /* 619 * Handle suspend/resume. 620 * 621 * We need to switch to polling mode here, because this routine is 622 * called from an intterupt context. This is all right since we 623 * are almost suspended anyway. 624 */ 625 void 626 uhci_power(why, v) 627 int why; 628 void *v; 629 { 630 uhci_softc_t *sc = v; 631 int cmd; 632 int s; 633 634 s = splusb(); 635 cmd = UREAD2(sc, UHCI_CMD); 636 637 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 638 sc, why, sc->sc_suspend, cmd)); 639 640 if (why != PWR_RESUME) { 641 #ifdef UHCI_DEBUG 642 if (uhcidebug > 2) 643 uhci_dumpregs(sc); 644 #endif 645 if (sc->sc_intr_xfer != NULL) 646 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 647 sc->sc_intr_xfer); 648 sc->sc_bus.use_polling++; 649 uhci_run(sc, 0); /* stop the controller */ 650 651 /* save some state if BIOS doesn't */ 652 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 653 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 654 655 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 656 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 657 sc->sc_suspend = why; 658 sc->sc_bus.use_polling--; 659 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 660 } else { 661 #ifdef DIAGNOSTIC 662 if (sc->sc_suspend == PWR_RESUME) 663 printf("uhci_power: weird, resume without suspend.\n"); 664 #endif 665 sc->sc_bus.use_polling++; 666 sc->sc_suspend = why; 667 if (cmd & UHCI_CMD_RS) 668 uhci_run(sc, 0); /* in case BIOS has started it */ 669 670 /* restore saved state */ 671 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 672 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 673 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 674 675 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 676 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 677 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 678 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 679 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 680 uhci_run(sc, 1); /* and start traffic again */ 681 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 682 sc->sc_bus.use_polling--; 683 if (sc->sc_intr_xfer != NULL) 684 usb_callout(sc->sc_poll_handle, sc->sc_ival, 685 uhci_poll_hub, sc->sc_intr_xfer); 686 #ifdef UHCI_DEBUG 687 if (uhcidebug > 2) 688 uhci_dumpregs(sc); 689 #endif 690 } 691 splx(s); 692 } 693 694 #ifdef UHCI_DEBUG 695 static void 696 uhci_dumpregs(sc) 697 uhci_softc_t *sc; 698 { 699 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 700 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 701 USBDEVNAME(sc->sc_bus.bdev), 702 UREAD2(sc, UHCI_CMD), 703 UREAD2(sc, UHCI_STS), 704 UREAD2(sc, UHCI_INTR), 705 UREAD2(sc, UHCI_FRNUM), 706 UREAD4(sc, UHCI_FLBASEADDR), 707 UREAD1(sc, UHCI_SOF), 708 UREAD2(sc, UHCI_PORTSC1), 709 UREAD2(sc, UHCI_PORTSC2))); 710 } 711 712 void 713 uhci_dump_td(p) 714 uhci_soft_td_t *p; 715 { 716 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 717 "token=0x%08lx buffer=0x%08lx\n", 718 p, (long)p->physaddr, 719 (long)le32toh(p->td.td_link), 720 (long)le32toh(p->td.td_status), 721 (long)le32toh(p->td.td_token), 722 (long)le32toh(p->td.td_buffer))); 723 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 724 "D=%d,maxlen=%d\n", 725 (int)le32toh(p->td.td_link), 726 "\20\1T\2Q\3VF", 727 (int)le32toh(p->td.td_status), 728 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 729 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 730 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 731 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 732 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 733 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 734 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 735 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 736 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 737 } 738 739 void 740 uhci_dump_qh(sqh) 741 uhci_soft_qh_t *sqh; 742 { 743 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 744 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 745 le32toh(sqh->qh.qh_elink))); 746 } 747 748 749 #if 0 750 void 751 uhci_dump() 752 { 753 uhci_softc_t *sc = thesc; 754 755 uhci_dumpregs(sc); 756 printf("intrs=%d\n", sc->sc_bus.no_intrs); 757 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 758 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 759 } 760 #endif 761 762 763 void 764 uhci_dump_qhs(sqh) 765 uhci_soft_qh_t *sqh; 766 { 767 uhci_dump_qh(sqh); 768 769 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 770 * Traverses sideways first, then down. 771 * 772 * QH1 773 * QH2 774 * No QH 775 * TD2.1 776 * TD2.2 777 * TD1.1 778 * etc. 779 * 780 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 781 */ 782 783 784 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 785 uhci_dump_qhs(sqh->hlink); 786 else 787 DPRINTF(("No QH\n")); 788 789 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 790 uhci_dump_tds(sqh->elink); 791 else 792 DPRINTF(("No TD\n")); 793 } 794 795 void 796 uhci_dump_tds(std) 797 uhci_soft_td_t *std; 798 { 799 uhci_soft_td_t *td; 800 801 for(td = std; td != NULL; td = td->link.std) { 802 uhci_dump_td(td); 803 804 /* Check whether the link pointer in this TD marks 805 * the link pointer as end of queue. This avoids 806 * printing the free list in case the queue/TD has 807 * already been moved there (seatbelt). 808 */ 809 if (le32toh(td->td.td_link) & UHCI_PTR_T || 810 le32toh(td->td.td_link) == 0) 811 break; 812 } 813 } 814 815 static void 816 uhci_dump_ii(ii) 817 uhci_intr_info_t *ii; 818 { 819 usbd_pipe_handle pipe; 820 usb_endpoint_descriptor_t *ed; 821 usbd_device_handle dev; 822 823 if (ii == NULL) { 824 printf("ii NULL\n"); 825 return; 826 } 827 if (ii->xfer == NULL) { 828 printf("ii %p: done=%d xfer=NULL\n", 829 ii, ii->isdone); 830 return; 831 } 832 pipe = ii->xfer->pipe; 833 if (pipe == NULL) { 834 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 835 ii, ii->isdone, ii->xfer); 836 return; 837 } 838 ed = pipe->endpoint->edesc; 839 dev = pipe->device; 840 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 841 ii, ii->isdone, ii->xfer, dev, 842 UGETW(dev->ddesc.idVendor), 843 UGETW(dev->ddesc.idProduct), 844 dev->address, pipe, 845 ed->bEndpointAddress, ed->bmAttributes); 846 } 847 848 void uhci_dump_iis(struct uhci_softc *); 849 void 850 uhci_dump_iis(sc) 851 struct uhci_softc *sc; 852 { 853 uhci_intr_info_t *ii; 854 855 printf("intr_info list:\n"); 856 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 857 uhci_dump_ii(ii); 858 } 859 860 void iidump(void); 861 void iidump() { uhci_dump_iis(thesc); } 862 863 #endif 864 865 /* 866 * This routine is executed periodically and simulates interrupts 867 * from the root controller interrupt pipe for port status change. 868 */ 869 void 870 uhci_poll_hub(addr) 871 void *addr; 872 { 873 usbd_xfer_handle xfer = addr; 874 usbd_pipe_handle pipe = xfer->pipe; 875 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 876 int s; 877 u_char *p; 878 879 DPRINTFN(20, ("uhci_poll_hub\n")); 880 881 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 882 883 p = KERNADDR(&xfer->dmabuf); 884 p[0] = 0; 885 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 886 p[0] |= 1<<1; 887 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 888 p[0] |= 1<<2; 889 if (p[0] == 0) 890 /* No change, try again in a while */ 891 return; 892 893 xfer->actlen = 1; 894 xfer->status = USBD_NORMAL_COMPLETION; 895 s = splusb(); 896 xfer->device->bus->intr_context++; 897 usb_transfer_complete(xfer); 898 xfer->device->bus->intr_context--; 899 splx(s); 900 } 901 902 void 903 uhci_root_intr_done(xfer) 904 usbd_xfer_handle xfer; 905 { 906 } 907 908 void 909 uhci_root_ctrl_done(xfer) 910 usbd_xfer_handle xfer; 911 { 912 } 913 914 /* Add control QH, called at splusb(). */ 915 void 916 uhci_add_ctrl(sc, sqh) 917 uhci_softc_t *sc; 918 uhci_soft_qh_t *sqh; 919 { 920 uhci_soft_qh_t *eqh; 921 922 SPLUSBCHECK; 923 924 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 925 eqh = sc->sc_ctl_end; 926 sqh->hlink = eqh->hlink; 927 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 928 eqh->hlink = sqh; 929 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 930 sc->sc_ctl_end = sqh; 931 } 932 933 /* Remove control QH, called at splusb(). */ 934 void 935 uhci_remove_ctrl(sc, sqh) 936 uhci_softc_t *sc; 937 uhci_soft_qh_t *sqh; 938 { 939 uhci_soft_qh_t *pqh; 940 941 SPLUSBCHECK; 942 943 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 944 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 945 pqh->hlink = sqh->hlink; 946 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 947 if (sc->sc_ctl_end == sqh) 948 sc->sc_ctl_end = pqh; 949 } 950 951 /* Add bulk QH, called at splusb(). */ 952 void 953 uhci_add_bulk(sc, sqh) 954 uhci_softc_t *sc; 955 uhci_soft_qh_t *sqh; 956 { 957 uhci_soft_qh_t *eqh; 958 959 SPLUSBCHECK; 960 961 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 962 eqh = sc->sc_bulk_end; 963 sqh->hlink = eqh->hlink; 964 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 965 eqh->hlink = sqh; 966 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 967 sc->sc_bulk_end = sqh; 968 } 969 970 void fooo(void); 971 void fooo() { } 972 973 /* Remove bulk QH, called at splusb(). */ 974 void 975 uhci_remove_bulk(sc, sqh) 976 uhci_softc_t *sc; 977 uhci_soft_qh_t *sqh; 978 { 979 uhci_soft_qh_t *pqh; 980 981 SPLUSBCHECK; 982 983 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 984 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 985 pqh->hlink = sqh->hlink; 986 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 987 if (sc->sc_bulk_end == sqh) 988 sc->sc_bulk_end = pqh; 989 } 990 991 int 992 uhci_intr(arg) 993 void *arg; 994 { 995 uhci_softc_t *sc = arg; 996 int status; 997 int ack; 998 999 #ifdef UHCI_DEBUG 1000 if (uhcidebug > 15) { 1001 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 1002 uhci_dumpregs(sc); 1003 } 1004 #endif 1005 1006 status = UREAD2(sc, UHCI_STS); 1007 if (status == 0) /* The interrupt was not for us. */ 1008 return (0); 1009 1010 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1011 if (sc->sc_suspend != PWR_RESUME) 1012 printf("uhci_intr: suspended sts=0x%x\n", status); 1013 #endif 1014 1015 ack = 0; 1016 if (status & UHCI_STS_USBINT) 1017 ack |= UHCI_STS_USBINT; 1018 if (status & UHCI_STS_USBEI) 1019 ack |= UHCI_STS_USBEI; 1020 if (status & UHCI_STS_RD) { 1021 ack |= UHCI_STS_RD; 1022 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1023 } 1024 if (status & UHCI_STS_HSE) { 1025 ack |= UHCI_STS_HSE; 1026 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1027 } 1028 if (status & UHCI_STS_HCPE) { 1029 ack |= UHCI_STS_HCPE; 1030 printf("%s: host controller process error\n", 1031 USBDEVNAME(sc->sc_bus.bdev)); 1032 } 1033 if (status & UHCI_STS_HCH) { 1034 /* no acknowledge needed */ 1035 printf("%s: host controller halted\n", 1036 USBDEVNAME(sc->sc_bus.bdev)); 1037 sc->sc_dying = 1; 1038 fooo(); 1039 } 1040 1041 if (ack) /* acknowledge the ints */ 1042 UWRITE2(sc, UHCI_STS, ack); 1043 else /* nothing to acknowledge */ 1044 return (0); 1045 1046 sc->sc_bus.no_intrs++; 1047 usb_schedsoftintr(&sc->sc_bus); 1048 1049 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1050 1051 return (1); 1052 } 1053 1054 void 1055 uhci_softintr(bus) 1056 struct usbd_bus *bus; 1057 { 1058 uhci_softc_t *sc = (uhci_softc_t *)bus; 1059 uhci_intr_info_t *ii; 1060 1061 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1062 1063 sc->sc_bus.intr_context++; 1064 1065 /* 1066 * Interrupts on UHCI really suck. When the host controller 1067 * interrupts because a transfer is completed there is no 1068 * way of knowing which transfer it was. You can scan down 1069 * the TDs and QHs of the previous frame to limit the search, 1070 * but that assumes that the interrupt was not delayed by more 1071 * than 1 ms, which may not always be true (e.g. after debug 1072 * output on a slow console). 1073 * We scan all interrupt descriptors to see if any have 1074 * completed. 1075 */ 1076 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1077 uhci_check_intr(sc, ii); 1078 1079 sc->sc_bus.intr_context--; 1080 } 1081 1082 /* Check for an interrupt. */ 1083 void 1084 uhci_check_intr(sc, ii) 1085 uhci_softc_t *sc; 1086 uhci_intr_info_t *ii; 1087 { 1088 uhci_soft_td_t *std, *lstd; 1089 u_int32_t status; 1090 1091 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1092 #ifdef DIAGNOSTIC 1093 if (ii == NULL) { 1094 printf("uhci_check_intr: no ii? %p\n", ii); 1095 return; 1096 } 1097 #endif 1098 if (ii->stdstart == NULL) 1099 return; 1100 lstd = ii->stdend; 1101 #ifdef DIAGNOSTIC 1102 if (lstd == NULL) { 1103 printf("uhci_check_intr: std==0\n"); 1104 return; 1105 } 1106 #endif 1107 /* 1108 * If the last TD is still active we need to check whether there 1109 * is a an error somewhere in the middle, or whether there was a 1110 * short packet (SPD and not ACTIVE). 1111 */ 1112 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1113 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1114 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1115 status = le32toh(std->td.td_status); 1116 /* If there's an active TD the xfer isn't done. */ 1117 if (status & UHCI_TD_ACTIVE) 1118 break; 1119 /* Any kind of error makes the xfer done. */ 1120 if (status & UHCI_TD_STALLED) 1121 goto done; 1122 /* We want short packets, and it is short: it's done */ 1123 if ((status & UHCI_TD_SPD) && 1124 UHCI_TD_GET_ACTLEN(status) < 1125 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1126 goto done; 1127 } 1128 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1129 ii, ii->stdstart)); 1130 return; 1131 } 1132 done: 1133 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1134 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1135 uhci_idone(ii); 1136 } 1137 1138 /* Called at splusb() */ 1139 void 1140 uhci_idone(ii) 1141 uhci_intr_info_t *ii; 1142 { 1143 usbd_xfer_handle xfer = ii->xfer; 1144 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1145 uhci_soft_td_t *std; 1146 u_int32_t status = 0, nstatus; 1147 int actlen; 1148 1149 #ifdef DIAGNOSTIC 1150 { 1151 int s = splhigh(); 1152 if (ii->isdone) { 1153 splx(s); 1154 #ifdef UHCI_DEBUG 1155 printf("uhci_idone: ii is done!\n "); 1156 uhci_dump_ii(ii); 1157 #else 1158 printf("uhci_idone: ii=%p is done!\n", ii); 1159 #endif 1160 return; 1161 } 1162 ii->isdone = 1; 1163 splx(s); 1164 } 1165 #endif 1166 1167 if (xfer->status == USBD_CANCELLED || 1168 xfer->status == USBD_TIMEOUT) { 1169 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1170 return; 1171 } 1172 1173 if (xfer->nframes != 0) { 1174 /* Isoc transfer, do things differently. */ 1175 uhci_soft_td_t **stds = upipe->u.iso.stds; 1176 int i, n, nframes; 1177 1178 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1179 1180 nframes = xfer->nframes; 1181 actlen = 0; 1182 n = UXFER(xfer)->curframe; 1183 for (i = 0; i < nframes; i++) { 1184 std = stds[n]; 1185 #ifdef UHCI_DEBUG 1186 if (uhcidebug > 5) { 1187 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1188 uhci_dump_td(std); 1189 } 1190 #endif 1191 if (++n >= UHCI_VFRAMELIST_COUNT) 1192 n = 0; 1193 status = le32toh(std->td.td_status); 1194 actlen += UHCI_TD_GET_ACTLEN(status); 1195 } 1196 upipe->u.iso.inuse -= nframes; 1197 xfer->actlen = actlen; 1198 xfer->status = USBD_NORMAL_COMPLETION; 1199 usb_transfer_complete(xfer); 1200 return; 1201 } 1202 1203 #ifdef UHCI_DEBUG 1204 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1205 ii, xfer, upipe)); 1206 if (uhcidebug > 10) 1207 uhci_dump_tds(ii->stdstart); 1208 #endif 1209 1210 /* The transfer is done, compute actual length and status. */ 1211 actlen = 0; 1212 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1213 nstatus = le32toh(std->td.td_status); 1214 if (nstatus & UHCI_TD_ACTIVE) 1215 break; 1216 1217 status = nstatus; 1218 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1219 UHCI_TD_PID_SETUP) 1220 actlen += UHCI_TD_GET_ACTLEN(status); 1221 } 1222 /* If there are left over TDs we need to update the toggle. */ 1223 if (std != NULL) 1224 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1225 1226 status &= UHCI_TD_ERROR; 1227 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1228 actlen, status)); 1229 xfer->actlen = actlen; 1230 if (status != 0) { 1231 DPRINTFN((status == UHCI_TD_STALLED)*10, 1232 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1233 "status 0x%b\n", 1234 xfer->pipe->device->address, 1235 xfer->pipe->endpoint->edesc->bEndpointAddress, 1236 (int)status, 1237 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1238 "STALLED\30ACTIVE")); 1239 if (status == UHCI_TD_STALLED) 1240 xfer->status = USBD_STALLED; 1241 else 1242 xfer->status = USBD_IOERROR; /* more info XXX */ 1243 } else { 1244 xfer->status = USBD_NORMAL_COMPLETION; 1245 } 1246 usb_transfer_complete(xfer); 1247 } 1248 1249 /* 1250 * Called when a request does not complete. 1251 */ 1252 void 1253 uhci_timeout(addr) 1254 void *addr; 1255 { 1256 uhci_intr_info_t *ii = addr; 1257 1258 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1259 1260 #ifdef UHCI_DEBUG 1261 if (uhcidebug > 10) 1262 uhci_dump_tds(ii->stdstart); 1263 #endif 1264 1265 ii->xfer->device->bus->intr_context++; 1266 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1267 ii->xfer->device->bus->intr_context--; 1268 } 1269 1270 /* 1271 * Wait here until controller claims to have an interrupt. 1272 * Then call uhci_intr and return. Use timeout to avoid waiting 1273 * too long. 1274 * Only used during boot when interrupts are not enabled yet. 1275 */ 1276 void 1277 uhci_waitintr(sc, xfer) 1278 uhci_softc_t *sc; 1279 usbd_xfer_handle xfer; 1280 { 1281 int timo = xfer->timeout; 1282 uhci_intr_info_t *ii; 1283 1284 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1285 1286 xfer->status = USBD_IN_PROGRESS; 1287 for (; timo >= 0; timo--) { 1288 usb_delay_ms(&sc->sc_bus, 1); 1289 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1290 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1291 uhci_intr(sc); 1292 if (xfer->status != USBD_IN_PROGRESS) 1293 return; 1294 } 1295 } 1296 1297 /* Timeout */ 1298 DPRINTF(("uhci_waitintr: timeout\n")); 1299 for (ii = LIST_FIRST(&sc->sc_intrhead); 1300 ii != NULL && ii->xfer != xfer; 1301 ii = LIST_NEXT(ii, list)) 1302 ; 1303 #ifdef DIAGNOSTIC 1304 if (ii == NULL) 1305 panic("uhci_waitintr: lost intr_info\n"); 1306 #endif 1307 uhci_idone(ii); 1308 } 1309 1310 void 1311 uhci_poll(bus) 1312 struct usbd_bus *bus; 1313 { 1314 uhci_softc_t *sc = (uhci_softc_t *)bus; 1315 1316 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1317 uhci_intr(sc); 1318 } 1319 1320 #if 0 1321 void 1322 uhci_reset(sc) 1323 uhci_softc_t *sc; 1324 { 1325 int n; 1326 1327 UHCICMD(sc, UHCI_CMD_HCRESET); 1328 /* The reset bit goes low when the controller is done. */ 1329 for (n = 0; n < UHCI_RESET_TIMEOUT && 1330 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1331 usb_delay_ms(&sc->sc_bus, 1); 1332 if (n >= UHCI_RESET_TIMEOUT) 1333 printf("%s: controller did not reset\n", 1334 USBDEVNAME(sc->sc_bus.bdev)); 1335 } 1336 #endif 1337 1338 usbd_status 1339 uhci_run(sc, run) 1340 uhci_softc_t *sc; 1341 int run; 1342 { 1343 int s, n, running; 1344 u_int16_t cmd; 1345 1346 run = run != 0; 1347 s = splusb(); 1348 DPRINTF(("uhci_run: setting run=%d\n", run)); 1349 cmd = UREAD2(sc, UHCI_CMD); 1350 if (run) 1351 cmd |= UHCI_CMD_RS; 1352 else 1353 cmd &= ~UHCI_CMD_RS; 1354 UHCICMD(sc, cmd); 1355 for(n = 0; n < 10; n++) { 1356 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1357 /* return when we've entered the state we want */ 1358 if (run == running) { 1359 splx(s); 1360 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1361 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1362 return (USBD_NORMAL_COMPLETION); 1363 } 1364 usb_delay_ms(&sc->sc_bus, 1); 1365 } 1366 splx(s); 1367 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1368 run ? "start" : "stop"); 1369 return (USBD_IOERROR); 1370 } 1371 1372 /* 1373 * Memory management routines. 1374 * uhci_alloc_std allocates TDs 1375 * uhci_alloc_sqh allocates QHs 1376 * These two routines do their own free list management, 1377 * partly for speed, partly because allocating DMAable memory 1378 * has page size granularaity so much memory would be wasted if 1379 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1380 */ 1381 1382 uhci_soft_td_t * 1383 uhci_alloc_std(sc) 1384 uhci_softc_t *sc; 1385 { 1386 uhci_soft_td_t *std; 1387 usbd_status err; 1388 int i, offs; 1389 usb_dma_t dma; 1390 1391 if (sc->sc_freetds == NULL) { 1392 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1393 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1394 UHCI_TD_ALIGN, &dma); 1395 if (err) 1396 return (0); 1397 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1398 offs = i * UHCI_STD_SIZE; 1399 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1400 std->physaddr = DMAADDR(&dma) + offs; 1401 std->link.std = sc->sc_freetds; 1402 sc->sc_freetds = std; 1403 } 1404 } 1405 std = sc->sc_freetds; 1406 sc->sc_freetds = std->link.std; 1407 memset(&std->td, 0, sizeof(uhci_td_t)); 1408 return std; 1409 } 1410 1411 void 1412 uhci_free_std(sc, std) 1413 uhci_softc_t *sc; 1414 uhci_soft_td_t *std; 1415 { 1416 #ifdef DIAGNOSTIC 1417 #define TD_IS_FREE 0x12345678 1418 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1419 printf("uhci_free_std: freeing free TD %p\n", std); 1420 return; 1421 } 1422 std->td.td_token = htole32(TD_IS_FREE); 1423 #endif 1424 std->link.std = sc->sc_freetds; 1425 sc->sc_freetds = std; 1426 } 1427 1428 uhci_soft_qh_t * 1429 uhci_alloc_sqh(sc) 1430 uhci_softc_t *sc; 1431 { 1432 uhci_soft_qh_t *sqh; 1433 usbd_status err; 1434 int i, offs; 1435 usb_dma_t dma; 1436 1437 if (sc->sc_freeqhs == NULL) { 1438 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1439 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1440 UHCI_QH_ALIGN, &dma); 1441 if (err) 1442 return (0); 1443 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1444 offs = i * UHCI_SQH_SIZE; 1445 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1446 sqh->physaddr = DMAADDR(&dma) + offs; 1447 sqh->hlink = sc->sc_freeqhs; 1448 sc->sc_freeqhs = sqh; 1449 } 1450 } 1451 sqh = sc->sc_freeqhs; 1452 sc->sc_freeqhs = sqh->hlink; 1453 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1454 return (sqh); 1455 } 1456 1457 void 1458 uhci_free_sqh(sc, sqh) 1459 uhci_softc_t *sc; 1460 uhci_soft_qh_t *sqh; 1461 { 1462 sqh->hlink = sc->sc_freeqhs; 1463 sc->sc_freeqhs = sqh; 1464 } 1465 1466 void 1467 uhci_free_std_chain(sc, std, stdend) 1468 uhci_softc_t *sc; 1469 uhci_soft_td_t *std; 1470 uhci_soft_td_t *stdend; 1471 { 1472 uhci_soft_td_t *p; 1473 1474 for (; std != stdend; std = p) { 1475 p = std->link.std; 1476 uhci_free_std(sc, std); 1477 } 1478 } 1479 1480 usbd_status 1481 uhci_alloc_std_chain(upipe, sc, len, rd, flags, dma, sp, ep) 1482 struct uhci_pipe *upipe; 1483 uhci_softc_t *sc; 1484 int len, rd; 1485 u_int16_t flags; 1486 usb_dma_t *dma; 1487 uhci_soft_td_t **sp, **ep; 1488 { 1489 uhci_soft_td_t *p, *lastp; 1490 uhci_physaddr_t lastlink; 1491 int i, ntd, l, tog, maxp; 1492 u_int32_t status; 1493 int addr = upipe->pipe.device->address; 1494 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1495 1496 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1497 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1498 upipe->pipe.device->lowspeed, flags)); 1499 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1500 if (maxp == 0) { 1501 printf("uhci_alloc_std_chain: maxp=0\n"); 1502 return (USBD_INVAL); 1503 } 1504 ntd = (len + maxp - 1) / maxp; 1505 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1506 ntd++; 1507 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1508 if (ntd == 0) { 1509 *sp = *ep = 0; 1510 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1511 return (USBD_NORMAL_COMPLETION); 1512 } 1513 tog = upipe->nexttoggle; 1514 if (ntd % 2 == 0) 1515 tog ^= 1; 1516 upipe->nexttoggle = tog ^ 1; 1517 lastp = 0; 1518 lastlink = UHCI_PTR_T; 1519 ntd--; 1520 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1521 if (upipe->pipe.device->lowspeed) 1522 status |= UHCI_TD_LS; 1523 if (flags & USBD_SHORT_XFER_OK) 1524 status |= UHCI_TD_SPD; 1525 for (i = ntd; i >= 0; i--) { 1526 p = uhci_alloc_std(sc); 1527 if (p == NULL) { 1528 uhci_free_std_chain(sc, lastp, 0); 1529 return (USBD_NOMEM); 1530 } 1531 p->link.std = lastp; 1532 if (lastlink == UHCI_PTR_T) 1533 p->td.td_link = htole32(lastlink); 1534 else 1535 p->td.td_link = htole32(lastlink|UHCI_PTR_VF); 1536 lastp = p; 1537 lastlink = p->physaddr; 1538 p->td.td_status = htole32(status); 1539 if (i == ntd) { 1540 /* last TD */ 1541 l = len % maxp; 1542 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1543 l = maxp; 1544 *ep = p; 1545 } else 1546 l = maxp; 1547 p->td.td_token = 1548 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1549 UHCI_TD_OUT(l, endpt, addr, tog)); 1550 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1551 tog ^= 1; 1552 } 1553 *sp = lastp; 1554 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1555 upipe->nexttoggle)); 1556 return (USBD_NORMAL_COMPLETION); 1557 } 1558 1559 void 1560 uhci_device_clear_toggle(pipe) 1561 usbd_pipe_handle pipe; 1562 { 1563 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1564 upipe->nexttoggle = 0; 1565 } 1566 1567 void 1568 uhci_noop(pipe) 1569 usbd_pipe_handle pipe; 1570 { 1571 } 1572 1573 usbd_status 1574 uhci_device_bulk_transfer(xfer) 1575 usbd_xfer_handle xfer; 1576 { 1577 usbd_status err; 1578 1579 /* Insert last in queue. */ 1580 err = usb_insert_transfer(xfer); 1581 if (err) 1582 return (err); 1583 1584 /* 1585 * Pipe isn't running (otherwise err would be USBD_INPROG), 1586 * so start it first. 1587 */ 1588 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1589 } 1590 1591 usbd_status 1592 uhci_device_bulk_start(xfer) 1593 usbd_xfer_handle xfer; 1594 { 1595 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1596 usbd_device_handle dev = upipe->pipe.device; 1597 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1598 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1599 uhci_soft_td_t *data, *dataend; 1600 uhci_soft_qh_t *sqh; 1601 usbd_status err; 1602 int len, isread, endpt; 1603 int s; 1604 1605 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1606 xfer, xfer->length, xfer->flags)); 1607 1608 if (sc->sc_dying) 1609 return (USBD_IOERROR); 1610 1611 #ifdef DIAGNOSTIC 1612 if (xfer->rqflags & URQ_REQUEST) 1613 panic("uhci_device_bulk_transfer: a request\n"); 1614 #endif 1615 1616 len = xfer->length; 1617 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1618 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1619 sqh = upipe->u.bulk.sqh; 1620 1621 upipe->u.bulk.isread = isread; 1622 upipe->u.bulk.length = len; 1623 1624 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1625 &xfer->dmabuf, &data, &dataend); 1626 if (err) 1627 return (err); 1628 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1629 1630 #ifdef UHCI_DEBUG 1631 if (uhcidebug > 8) { 1632 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1633 uhci_dump_tds(data); 1634 } 1635 #endif 1636 1637 /* Set up interrupt info. */ 1638 ii->xfer = xfer; 1639 ii->stdstart = data; 1640 ii->stdend = dataend; 1641 #ifdef DIAGNOSTIC 1642 if (!ii->isdone) { 1643 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1644 } 1645 ii->isdone = 0; 1646 #endif 1647 1648 sqh->elink = data; 1649 sqh->qh.qh_elink = htole32(data->physaddr); 1650 1651 s = splusb(); 1652 uhci_add_bulk(sc, sqh); 1653 uhci_add_intr_info(sc, ii); 1654 1655 if (xfer->timeout && !sc->sc_bus.use_polling) { 1656 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1657 uhci_timeout, ii); 1658 } 1659 xfer->status = USBD_IN_PROGRESS; 1660 splx(s); 1661 1662 #ifdef UHCI_DEBUG 1663 if (uhcidebug > 10) { 1664 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1665 uhci_dump_tds(data); 1666 } 1667 #endif 1668 1669 if (sc->sc_bus.use_polling) 1670 uhci_waitintr(sc, xfer); 1671 1672 return (USBD_IN_PROGRESS); 1673 } 1674 1675 /* Abort a device bulk request. */ 1676 void 1677 uhci_device_bulk_abort(xfer) 1678 usbd_xfer_handle xfer; 1679 { 1680 DPRINTF(("uhci_device_bulk_abort:\n")); 1681 uhci_abort_xfer(xfer, USBD_CANCELLED); 1682 } 1683 1684 /* 1685 * Aborting a xfer on the UHCI host controller is tricky. 1686 * The problem is that the HC can asynchronously manipulate 1687 * the very fields in the QH and TD that we need to abort a 1688 * xfer. 1689 * The problematic field are qh_elink (which points to the first 1690 * TD) and td_status which contains the active flag. 1691 * 1692 * Here's my current (convoluted) strategy: 1693 * - Block HC interrupt. We need this to check if the xfer 1694 * might already be over. If called outside splusb() this can 1695 * happen. 1696 * - Check if an abort is already in progress (see below), if so 1697 * just link out the xfer, run the callback, and return. 1698 * - Otherwise, flag that abort is in progress. 1699 * - Remove the QH for the xfer from the list of QHs (this 1700 * can be done safely). 1701 * - Remove the transaction from the list of transactions examined 1702 * when the HC interrupts. 1703 * At this point we know that the transaction will never be considered 1704 * by the interrupt routine. The trouble we have is that the HC might 1705 * be following the chain of TDs rooted at the unlinked QH because it 1706 * started before the unlink. 1707 * We would like to run the xfer callback function at this point 1708 * to inform it that the xfer has been aborted, but running the 1709 * callback might result in freeing the xfer. This would be bad 1710 * since the HC might still use it. So we need to avoid this by: 1711 * - Disable the active flag in all TD belonging to the xfer. 1712 * If we do this we can guarantee that the HC will execute at most one 1713 * TD after we turn off the flag in the last TD. 1714 * - Busy-wait until the HC has finished with the TD. We do this by 1715 * keeping track of the longest TD and using delay() for the time it 1716 * takes to complete it (one byte takes a little less than 1 (LS 6) us). 1717 * - Run the callback routine, since at this point the HC can not be 1718 * using any TDs in the xfer. 1719 * We still cannot manipulate the qh_elink field in the QH since the 1720 * HC might be following TDs further down the chain for another 1 ms. 1721 * So... 1722 * - Set up a timeout 1 ms into the future. 1723 * - Turn on interrupts. 1724 * - Return. 1725 * 1726 * When the timeout happens we do the following: 1727 * - Check if the qh_elink field points anywhere in the TD chain we had 1728 * when the timeout was set up. If it is, leave qh_elink alone, 1729 * otherwise set qh_elink pointing to the next (if any) xfer in 1730 * the TD chain. 1731 * - Link the QH back where we got it. 1732 * - Turn off flag about abort in progress. 1733 * Done! 1734 * 1735 * The timeout is associated with the pipe and it must be cancelled if 1736 * the pipe is closed. 1737 */ 1738 1739 void 1740 uhci_abort_xfer(xfer, status) 1741 usbd_xfer_handle xfer; 1742 usbd_status status; 1743 { 1744 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1745 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1746 uhci_soft_td_t *std; 1747 int s; 1748 int len, maxlen; 1749 1750 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, xfer->status=%d, status=%d\n", 1751 xfer, xfer->status, status)); 1752 1753 s = splusb(); 1754 1755 /* Transfer is already done. */ 1756 if (xfer->status != USBD_NOT_STARTED && 1757 xfer->status != USBD_IN_PROGRESS) { 1758 splx(s); 1759 return; 1760 } 1761 1762 /* Give xfer the requested abort code. */ 1763 xfer->status = status; 1764 1765 /* If already aborting, bail out early. */ 1766 if (upipe->aborting) { 1767 /* Unlink the xfer from HC */ 1768 /*XXX only one xfer for now*/ 1769 printf("uhci_abort_xfer: abort while aborting\n"); 1770 /* Finalize xfer. */ 1771 usb_transfer_complete(xfer); 1772 splx(s); 1773 return; 1774 } 1775 1776 upipe->aborting = 1; 1777 upipe->abortstart = SIMPLEQ_NEXT(xfer, next); 1778 upipe->abortend = NULL; /* XXX only one xfer for now */ 1779 1780 /* Remove QH(s) from HC schedule. */ 1781 uhci_abort_unlink_qh(upipe); 1782 1783 /* Remove intr_info from list is done by usb_transfer_complete() .*/ 1784 1785 /* Disable active bit. */ 1786 maxlen = 0; 1787 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1788 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1789 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 1790 if (len > maxlen) 1791 maxlen = len; 1792 } 1793 /* compute delay in us */ 1794 if (upipe->pipe.device->lowspeed) 1795 maxlen *= 6; 1796 /* wait for HC to complete TDs */ 1797 delay(maxlen); 1798 1799 /* Don't timeout, */ 1800 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1801 1802 #ifdef DIAGNOSTIC 1803 UXFER(xfer)->iinfo.isdone = 1; 1804 #endif 1805 /* Run callback and remove from interrupt list. */ 1806 usb_transfer_complete(xfer); 1807 1808 /* Set up final processing. */ 1809 usb_callout(xfer->pipe->abort_handle, hz / USB_FRAMES_PER_SECOND, 1810 uhci_abort_xfer_end, upipe); 1811 1812 /* And return. */ 1813 splx(s); 1814 } 1815 1816 void 1817 uhci_abort_xfer_end(v) 1818 void *v; 1819 { 1820 struct uhci_pipe *upipe = v; 1821 usbd_xfer_handle xf; 1822 uhci_soft_td_t *std; 1823 uhci_soft_qh_t *sqh, **qhs; 1824 int s; 1825 int i, nqhs; 1826 1827 DPRINTFN(5,("uhci_abort_xfer_end: upipe=%p\n", upipe)); 1828 1829 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1830 case UE_CONTROL: 1831 #if 0 1832 qhs = &upipe->u.ctl.sqh; 1833 nqhs = 1; 1834 #else 1835 /* only one ctl transfer; qh unlinked by usb_transfer_complete() */ 1836 nqhs = 0; 1837 #endif 1838 break; 1839 case UE_ISOCHRONOUS: 1840 printf("uhci_abort_xfer_end: iso\n"); 1841 nqhs = 0; 1842 break; 1843 case UE_BULK: 1844 qhs = &upipe->u.bulk.sqh; 1845 nqhs = 1; 1846 break; 1847 case UE_INTERRUPT: 1848 qhs = upipe->u.intr.qhs; 1849 nqhs = upipe->u.intr.npoll; 1850 break; 1851 } 1852 1853 s = splusb(); 1854 1855 for (i = 0; i < nqhs; i++) { 1856 sqh = qhs[i]; 1857 /* Check if inside remaining TD chain. */ 1858 for (xf = upipe->abortstart; xf != NULL; 1859 xf = SIMPLEQ_NEXT(xf, next)) { 1860 for (std = UXFER(xf)->iinfo.stdstart; std != NULL; 1861 std = std->link.std) { 1862 if (std->physaddr == le32toh(sqh->qh.qh_elink)) 1863 goto outside; 1864 } 1865 if (xf == upipe->abortend) 1866 break; 1867 } 1868 if (upipe->abortstart != NULL) { 1869 std = UXFER(upipe->abortstart)->iinfo.stdstart; 1870 DPRINTFN(5,("uhci_abort_xfer_end: new std=%p\n", std)); 1871 sqh->elink = std; 1872 sqh->qh.qh_elink = htole32(std->physaddr); 1873 } else { 1874 DPRINTFN(5,("uhci_abort_xfer_end: new std=NULL\n")); 1875 sqh->elink = NULL; 1876 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1877 } 1878 } 1879 1880 outside: 1881 1882 /* Insert QH again. */ 1883 uhci_abort_relink_qh(upipe); 1884 1885 /* No longer aborting */ 1886 upipe->aborting = 0; 1887 1888 splx(s); 1889 } 1890 1891 void 1892 uhci_abort_unlink_qh(upipe) 1893 struct uhci_pipe *upipe; 1894 { 1895 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1896 uhci_soft_qh_t *sqh, *pqh, **qhs; 1897 int i, npoll; 1898 1899 DPRINTFN(5,("uhci_abort_unlink_qh: sc=%p pipe=%p\n", sc, upipe)); 1900 1901 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1902 case UE_CONTROL: 1903 #if 0 1904 sqh = upipe->u.ctl.sqh; 1905 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1906 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1907 #endif 1908 break; 1909 case UE_ISOCHRONOUS: 1910 printf("uhci_abort_unlink_qh: iso\n"); 1911 break; 1912 case UE_BULK: 1913 sqh = upipe->u.bulk.sqh; 1914 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1915 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1916 break; 1917 case UE_INTERRUPT: 1918 npoll = upipe->u.intr.npoll; 1919 qhs = upipe->u.intr.qhs; 1920 for (i = 0; i < npoll; i++) { 1921 sqh = qhs[i]; 1922 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1923 sqh); 1924 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1925 } 1926 break; 1927 } 1928 } 1929 1930 void 1931 uhci_abort_relink_qh(upipe) 1932 struct uhci_pipe *upipe; 1933 { 1934 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1935 uhci_soft_qh_t *sqh, *pqh, **qhs; 1936 int i, npoll; 1937 1938 switch (UE_GET_XFERTYPE(upipe->pipe.endpoint->edesc->bmAttributes)) { 1939 case UE_CONTROL: 1940 #if 0 1941 sqh = upipe->u.ctl.sqh; 1942 pqh = uhci_find_prev_qh(sc->sc_ctl_start, sqh); 1943 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1944 #endif 1945 break; 1946 case UE_ISOCHRONOUS: 1947 printf("uhci_abort_relink_qh: iso\n"); 1948 break; 1949 case UE_BULK: 1950 sqh = upipe->u.bulk.sqh; 1951 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1952 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1953 break; 1954 break; 1955 case UE_INTERRUPT: 1956 npoll = upipe->u.intr.npoll; 1957 qhs = upipe->u.intr.qhs; 1958 for (i = 0; i < npoll; i++) { 1959 sqh = qhs[i]; 1960 pqh = uhci_find_prev_qh(sc->sc_vframes[sqh->pos].hqh, 1961 sqh); 1962 pqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 1963 } 1964 break; 1965 } 1966 } 1967 1968 void 1969 uhci_cancel_abort(pipe) 1970 usbd_pipe_handle pipe; 1971 { 1972 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1973 int s; 1974 1975 s = splusb(); 1976 if (upipe->aborting) { 1977 usb_uncallout(pipe->abort_handle, uhci_abort_xfer_end, upipe); 1978 upipe->aborting = 0; 1979 } 1980 splx(s); 1981 } 1982 1983 1984 /* Close a device bulk pipe. */ 1985 void 1986 uhci_device_bulk_close(pipe) 1987 usbd_pipe_handle pipe; 1988 { 1989 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1990 usbd_device_handle dev = upipe->pipe.device; 1991 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1992 1993 uhci_cancel_abort(pipe); 1994 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1995 } 1996 1997 usbd_status 1998 uhci_device_ctrl_transfer(xfer) 1999 usbd_xfer_handle xfer; 2000 { 2001 usbd_status err; 2002 2003 /* Insert last in queue. */ 2004 err = usb_insert_transfer(xfer); 2005 if (err) 2006 return (err); 2007 2008 /* 2009 * Pipe isn't running (otherwise err would be USBD_INPROG), 2010 * so start it first. 2011 */ 2012 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2013 } 2014 2015 usbd_status 2016 uhci_device_ctrl_start(xfer) 2017 usbd_xfer_handle xfer; 2018 { 2019 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2020 usbd_status err; 2021 2022 if (sc->sc_dying) 2023 return (USBD_IOERROR); 2024 2025 #ifdef DIAGNOSTIC 2026 if (!(xfer->rqflags & URQ_REQUEST)) 2027 panic("uhci_device_ctrl_transfer: not a request\n"); 2028 #endif 2029 2030 err = uhci_device_request(xfer); 2031 if (err) 2032 return (err); 2033 2034 if (sc->sc_bus.use_polling) 2035 uhci_waitintr(sc, xfer); 2036 return (USBD_IN_PROGRESS); 2037 } 2038 2039 usbd_status 2040 uhci_device_intr_transfer(xfer) 2041 usbd_xfer_handle xfer; 2042 { 2043 usbd_status err; 2044 2045 /* Insert last in queue. */ 2046 err = usb_insert_transfer(xfer); 2047 if (err) 2048 return (err); 2049 2050 /* 2051 * Pipe isn't running (otherwise err would be USBD_INPROG), 2052 * so start it first. 2053 */ 2054 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2055 } 2056 2057 usbd_status 2058 uhci_device_intr_start(xfer) 2059 usbd_xfer_handle xfer; 2060 { 2061 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2062 usbd_device_handle dev = upipe->pipe.device; 2063 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2064 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2065 uhci_soft_td_t *data, *dataend; 2066 uhci_soft_qh_t *sqh; 2067 usbd_status err; 2068 int i, s; 2069 2070 if (sc->sc_dying) 2071 return (USBD_IOERROR); 2072 2073 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2074 xfer, xfer->length, xfer->flags)); 2075 2076 #ifdef DIAGNOSTIC 2077 if (xfer->rqflags & URQ_REQUEST) 2078 panic("uhci_device_intr_transfer: a request\n"); 2079 #endif 2080 2081 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2082 &xfer->dmabuf, &data, &dataend); 2083 if (err) 2084 return (err); 2085 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2086 2087 #ifdef UHCI_DEBUG 2088 if (uhcidebug > 10) { 2089 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2090 uhci_dump_tds(data); 2091 uhci_dump_qh(upipe->u.intr.qhs[0]); 2092 } 2093 #endif 2094 2095 s = splusb(); 2096 /* Set up interrupt info. */ 2097 ii->xfer = xfer; 2098 ii->stdstart = data; 2099 ii->stdend = dataend; 2100 #ifdef DIAGNOSTIC 2101 if (!ii->isdone) { 2102 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2103 } 2104 ii->isdone = 0; 2105 #endif 2106 2107 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2108 upipe->u.intr.qhs[0])); 2109 for (i = 0; i < upipe->u.intr.npoll; i++) { 2110 sqh = upipe->u.intr.qhs[i]; 2111 sqh->elink = data; 2112 sqh->qh.qh_elink = htole32(data->physaddr); 2113 } 2114 uhci_add_intr_info(sc, ii); 2115 xfer->status = USBD_IN_PROGRESS; 2116 splx(s); 2117 2118 #ifdef UHCI_DEBUG 2119 if (uhcidebug > 10) { 2120 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2121 uhci_dump_tds(data); 2122 uhci_dump_qh(upipe->u.intr.qhs[0]); 2123 } 2124 #endif 2125 2126 return (USBD_IN_PROGRESS); 2127 } 2128 2129 /* Abort a device control request. */ 2130 void 2131 uhci_device_ctrl_abort(xfer) 2132 usbd_xfer_handle xfer; 2133 { 2134 DPRINTF(("uhci_device_ctrl_abort:\n")); 2135 uhci_abort_xfer(xfer, USBD_CANCELLED); 2136 } 2137 2138 /* Close a device control pipe. */ 2139 void 2140 uhci_device_ctrl_close(pipe) 2141 usbd_pipe_handle pipe; 2142 { 2143 uhci_cancel_abort(pipe); 2144 } 2145 2146 /* Abort a device interrupt request. */ 2147 void 2148 uhci_device_intr_abort(xfer) 2149 usbd_xfer_handle xfer; 2150 { 2151 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2152 if (xfer->pipe->intrxfer == xfer) { 2153 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2154 xfer->pipe->intrxfer = 0; 2155 } 2156 uhci_abort_xfer(xfer, USBD_CANCELLED); 2157 } 2158 2159 /* Close a device interrupt pipe. */ 2160 void 2161 uhci_device_intr_close(pipe) 2162 usbd_pipe_handle pipe; 2163 { 2164 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2165 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2166 int i, npoll; 2167 int s; 2168 2169 uhci_cancel_abort(pipe); 2170 2171 /* Unlink descriptors from controller data structures. */ 2172 npoll = upipe->u.intr.npoll; 2173 s = splusb(); 2174 for (i = 0; i < npoll; i++) 2175 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2176 splx(s); 2177 2178 /* 2179 * We now have to wait for any activity on the physical 2180 * descriptors to stop. 2181 */ 2182 usb_delay_ms(&sc->sc_bus, 2); 2183 2184 for(i = 0; i < npoll; i++) 2185 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2186 free(upipe->u.intr.qhs, M_USBHC); 2187 2188 /* XXX free other resources */ 2189 } 2190 2191 usbd_status 2192 uhci_device_request(xfer) 2193 usbd_xfer_handle xfer; 2194 { 2195 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2196 usb_device_request_t *req = &xfer->request; 2197 usbd_device_handle dev = upipe->pipe.device; 2198 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2199 int addr = dev->address; 2200 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2201 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2202 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2203 uhci_soft_qh_t *sqh; 2204 int len; 2205 u_int32_t ls; 2206 usbd_status err; 2207 int isread; 2208 int s; 2209 2210 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2211 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2212 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2213 UGETW(req->wIndex), UGETW(req->wLength), 2214 addr, endpt)); 2215 2216 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2217 isread = req->bmRequestType & UT_READ; 2218 len = UGETW(req->wLength); 2219 2220 setup = upipe->u.ctl.setup; 2221 stat = upipe->u.ctl.stat; 2222 sqh = upipe->u.ctl.sqh; 2223 2224 /* Set up data transaction */ 2225 if (len != 0) { 2226 upipe->nexttoggle = 1; 2227 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2228 &xfer->dmabuf, &data, &dataend); 2229 if (err) 2230 return (err); 2231 next = data; 2232 dataend->link.std = stat; 2233 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF); 2234 } else { 2235 next = stat; 2236 } 2237 upipe->u.ctl.length = len; 2238 2239 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2240 2241 setup->link.std = next; 2242 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF); 2243 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2244 UHCI_TD_ACTIVE); 2245 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2246 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2247 2248 stat->link.std = NULL; 2249 stat->td.td_link = htole32(UHCI_PTR_T); 2250 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2251 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2252 stat->td.td_token = 2253 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2254 UHCI_TD_IN (0, endpt, addr, 1)); 2255 stat->td.td_buffer = htole32(0); 2256 2257 #ifdef UHCI_DEBUG 2258 if (uhcidebug > 10) { 2259 DPRINTF(("uhci_device_request: before transfer\n")); 2260 uhci_dump_tds(setup); 2261 } 2262 #endif 2263 2264 /* Set up interrupt info. */ 2265 ii->xfer = xfer; 2266 ii->stdstart = setup; 2267 ii->stdend = stat; 2268 #ifdef DIAGNOSTIC 2269 if (!ii->isdone) { 2270 printf("uhci_device_request: not done, ii=%p\n", ii); 2271 } 2272 ii->isdone = 0; 2273 #endif 2274 2275 sqh->elink = setup; 2276 sqh->qh.qh_elink = htole32(setup->physaddr); 2277 2278 s = splusb(); 2279 uhci_add_ctrl(sc, sqh); 2280 uhci_add_intr_info(sc, ii); 2281 #ifdef UHCI_DEBUG 2282 if (uhcidebug > 12) { 2283 uhci_soft_td_t *std; 2284 uhci_soft_qh_t *xqh; 2285 uhci_soft_qh_t *sxqh; 2286 int maxqh = 0; 2287 uhci_physaddr_t link; 2288 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2289 for (std = sc->sc_vframes[0].htd, link = 0; 2290 (link & UHCI_PTR_Q) == 0; 2291 std = std->link.std) { 2292 link = le32toh(std->td.td_link); 2293 uhci_dump_td(std); 2294 } 2295 sxqh = (uhci_soft_qh_t *)std; 2296 uhci_dump_qh(sxqh); 2297 for (xqh = sxqh; 2298 xqh != NULL; 2299 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 2300 xqh->hlink==xqh ? NULL : xqh->hlink)) { 2301 uhci_dump_qh(xqh); 2302 } 2303 DPRINTF(("Enqueued QH:\n")); 2304 uhci_dump_qh(sqh); 2305 uhci_dump_tds(sqh->elink); 2306 } 2307 #endif 2308 if (xfer->timeout && !sc->sc_bus.use_polling) { 2309 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2310 uhci_timeout, ii); 2311 } 2312 xfer->status = USBD_IN_PROGRESS; 2313 splx(s); 2314 2315 return (USBD_NORMAL_COMPLETION); 2316 } 2317 2318 usbd_status 2319 uhci_device_isoc_transfer(xfer) 2320 usbd_xfer_handle xfer; 2321 { 2322 usbd_status err; 2323 2324 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2325 2326 /* Put it on our queue, */ 2327 err = usb_insert_transfer(xfer); 2328 2329 /* bail out on error, */ 2330 if (err && err != USBD_IN_PROGRESS) 2331 return (err); 2332 2333 /* XXX should check inuse here */ 2334 2335 /* insert into schedule, */ 2336 uhci_device_isoc_enter(xfer); 2337 2338 /* and put on interrupt list if the pipe wasn't running */ 2339 if (!err) 2340 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2341 2342 return (err); 2343 } 2344 2345 void 2346 uhci_device_isoc_enter(xfer) 2347 usbd_xfer_handle xfer; 2348 { 2349 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2350 usbd_device_handle dev = upipe->pipe.device; 2351 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2352 struct iso *iso = &upipe->u.iso; 2353 uhci_soft_td_t *std; 2354 u_int32_t buf, len, status; 2355 int s, i, next, nframes; 2356 2357 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2358 "nframes=%d\n", 2359 iso->inuse, iso->next, xfer, xfer->nframes)); 2360 2361 if (sc->sc_dying) 2362 return; 2363 2364 if (xfer->status == USBD_IN_PROGRESS) { 2365 /* This request has already been entered into the frame list */ 2366 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2367 /* XXX */ 2368 } 2369 2370 #ifdef DIAGNOSTIC 2371 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2372 printf("uhci_device_isoc_enter: overflow!\n"); 2373 #endif 2374 2375 next = iso->next; 2376 if (next == -1) { 2377 /* Not in use yet, schedule it a few frames ahead. */ 2378 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2379 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2380 } 2381 2382 xfer->status = USBD_IN_PROGRESS; 2383 UXFER(xfer)->curframe = next; 2384 2385 buf = DMAADDR(&xfer->dmabuf); 2386 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2387 UHCI_TD_ACTIVE | 2388 UHCI_TD_IOS); 2389 nframes = xfer->nframes; 2390 s = splusb(); 2391 for (i = 0; i < nframes; i++) { 2392 std = iso->stds[next]; 2393 if (++next >= UHCI_VFRAMELIST_COUNT) 2394 next = 0; 2395 len = xfer->frlengths[i]; 2396 std->td.td_buffer = htole32(buf); 2397 if (i == nframes - 1) 2398 status |= UHCI_TD_IOC; 2399 std->td.td_status = htole32(status); 2400 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2401 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2402 #ifdef UHCI_DEBUG 2403 if (uhcidebug > 5) { 2404 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2405 uhci_dump_td(std); 2406 } 2407 #endif 2408 buf += len; 2409 } 2410 iso->next = next; 2411 iso->inuse += xfer->nframes; 2412 2413 splx(s); 2414 } 2415 2416 usbd_status 2417 uhci_device_isoc_start(xfer) 2418 usbd_xfer_handle xfer; 2419 { 2420 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2421 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2422 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2423 uhci_soft_td_t *end; 2424 int s, i; 2425 2426 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2427 2428 if (sc->sc_dying) 2429 return (USBD_IOERROR); 2430 2431 #ifdef DIAGNOSTIC 2432 if (xfer->status != USBD_IN_PROGRESS) 2433 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2434 #endif 2435 2436 /* Find the last TD */ 2437 i = UXFER(xfer)->curframe + xfer->nframes; 2438 if (i >= UHCI_VFRAMELIST_COUNT) 2439 i -= UHCI_VFRAMELIST_COUNT; 2440 end = upipe->u.iso.stds[i]; 2441 2442 #ifdef DIAGNOSTIC 2443 if (end == NULL) { 2444 printf("uhci_device_isoc_start: end == NULL\n"); 2445 return (USBD_INVAL); 2446 } 2447 #endif 2448 2449 s = splusb(); 2450 2451 /* Set up interrupt info. */ 2452 ii->xfer = xfer; 2453 ii->stdstart = end; 2454 ii->stdend = end; 2455 #ifdef DIAGNOSTIC 2456 if (!ii->isdone) { 2457 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2458 } 2459 ii->isdone = 0; 2460 #endif 2461 uhci_add_intr_info(sc, ii); 2462 2463 splx(s); 2464 2465 return (USBD_IN_PROGRESS); 2466 } 2467 2468 void 2469 uhci_device_isoc_abort(xfer) 2470 usbd_xfer_handle xfer; 2471 { 2472 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2473 uhci_soft_td_t **stds = upipe->u.iso.stds; 2474 uhci_soft_td_t *std; 2475 int i, n, s, nframes, maxlen, len; 2476 2477 s = splusb(); 2478 2479 /* Transfer is already done. */ 2480 if (xfer->status != USBD_NOT_STARTED && 2481 xfer->status != USBD_IN_PROGRESS) { 2482 splx(s); 2483 return; 2484 } 2485 2486 /* Give xfer the requested abort code. */ 2487 xfer->status = USBD_CANCELLED; 2488 2489 /* make hardware ignore it, */ 2490 nframes = xfer->nframes; 2491 n = UXFER(xfer)->curframe; 2492 maxlen = 0; 2493 for (i = 0; i < nframes; i++) { 2494 std = stds[n]; 2495 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2496 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 2497 if (len > maxlen) 2498 maxlen = len; 2499 if (++n >= UHCI_VFRAMELIST_COUNT) 2500 n = 0; 2501 } 2502 2503 /* and wait until we are sure the hardware has finished. */ 2504 delay(maxlen); 2505 2506 #ifdef DIAGNOSTIC 2507 UXFER(xfer)->iinfo.isdone = 1; 2508 #endif 2509 /* Run callback and remove from interrupt list. */ 2510 usb_transfer_complete(xfer); 2511 2512 splx(s); 2513 } 2514 2515 void 2516 uhci_device_isoc_close(pipe) 2517 usbd_pipe_handle pipe; 2518 { 2519 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2520 usbd_device_handle dev = upipe->pipe.device; 2521 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2522 uhci_soft_td_t *std, *vstd; 2523 struct iso *iso; 2524 int i, s; 2525 2526 /* 2527 * Make sure all TDs are marked as inactive. 2528 * Wait for completion. 2529 * Unschedule. 2530 * Deallocate. 2531 */ 2532 iso = &upipe->u.iso; 2533 2534 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2535 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2536 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2537 2538 s = splusb(); 2539 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2540 std = iso->stds[i]; 2541 for (vstd = sc->sc_vframes[i].htd; 2542 vstd != NULL && vstd->link.std != std; 2543 vstd = vstd->link.std) 2544 ; 2545 if (vstd == NULL) { 2546 /*panic*/ 2547 printf("uhci_device_isoc_close: %p not found\n", std); 2548 splx(s); 2549 return; 2550 } 2551 vstd->link = std->link; 2552 vstd->td.td_link = std->td.td_link; 2553 uhci_free_std(sc, std); 2554 } 2555 splx(s); 2556 2557 free(iso->stds, M_USBHC); 2558 } 2559 2560 usbd_status 2561 uhci_setup_isoc(pipe) 2562 usbd_pipe_handle pipe; 2563 { 2564 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2565 usbd_device_handle dev = upipe->pipe.device; 2566 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2567 int addr = upipe->pipe.device->address; 2568 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2569 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2570 uhci_soft_td_t *std, *vstd; 2571 u_int32_t token; 2572 struct iso *iso; 2573 int i, s; 2574 2575 iso = &upipe->u.iso; 2576 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2577 M_USBHC, M_WAITOK); 2578 2579 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2580 UHCI_TD_OUT(0, endpt, addr, 0); 2581 2582 /* Allocate the TDs and mark as inactive; */ 2583 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2584 std = uhci_alloc_std(sc); 2585 if (std == 0) 2586 goto bad; 2587 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2588 std->td.td_token = htole32(token); 2589 iso->stds[i] = std; 2590 } 2591 2592 /* Insert TDs into schedule. */ 2593 s = splusb(); 2594 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2595 std = iso->stds[i]; 2596 vstd = sc->sc_vframes[i].htd; 2597 std->link = vstd->link; 2598 std->td.td_link = vstd->td.td_link; 2599 vstd->link.std = std; 2600 vstd->td.td_link = htole32(std->physaddr); 2601 } 2602 splx(s); 2603 2604 iso->next = -1; 2605 iso->inuse = 0; 2606 2607 return (USBD_NORMAL_COMPLETION); 2608 2609 bad: 2610 while (--i >= 0) 2611 uhci_free_std(sc, iso->stds[i]); 2612 free(iso->stds, M_USBHC); 2613 return (USBD_NOMEM); 2614 } 2615 2616 void 2617 uhci_device_isoc_done(xfer) 2618 usbd_xfer_handle xfer; 2619 { 2620 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2621 2622 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2623 2624 if (ii->xfer != xfer) 2625 /* Not on interrupt list, ignore it. */ 2626 return; 2627 2628 #ifdef DIAGNOSTIC 2629 if (xfer->busy_free != XFER_BUSY) { 2630 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2631 xfer, xfer->busy_free); 2632 return; 2633 } 2634 2635 if (ii->stdend == NULL) { 2636 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2637 #ifdef UHCI_DEBUG 2638 uhci_dump_ii(ii); 2639 #endif 2640 return; 2641 } 2642 #endif 2643 2644 /* Turn off the interrupt since it is active even if the TD is not. */ 2645 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2646 2647 uhci_del_intr_info(ii); /* remove from active list */ 2648 } 2649 2650 void 2651 uhci_device_intr_done(xfer) 2652 usbd_xfer_handle xfer; 2653 { 2654 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2655 uhci_softc_t *sc = ii->sc; 2656 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2657 uhci_soft_qh_t *sqh; 2658 int i, npoll; 2659 2660 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2661 2662 npoll = upipe->u.intr.npoll; 2663 for(i = 0; i < npoll; i++) { 2664 sqh = upipe->u.intr.qhs[i]; 2665 sqh->elink = 0; 2666 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2667 } 2668 uhci_free_std_chain(sc, ii->stdstart, 0); 2669 2670 /* XXX Wasteful. */ 2671 if (xfer->pipe->repeat) { 2672 uhci_soft_td_t *data, *dataend; 2673 2674 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2675 2676 /* This alloc cannot fail since we freed the chain above. */ 2677 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2678 &xfer->dmabuf, &data, &dataend); 2679 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2680 2681 #ifdef UHCI_DEBUG 2682 if (uhcidebug > 10) { 2683 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2684 uhci_dump_tds(data); 2685 uhci_dump_qh(upipe->u.intr.qhs[0]); 2686 } 2687 #endif 2688 2689 ii->stdstart = data; 2690 ii->stdend = dataend; 2691 #ifdef DIAGNOSTIC 2692 if (!ii->isdone) { 2693 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2694 } 2695 ii->isdone = 0; 2696 #endif 2697 for (i = 0; i < npoll; i++) { 2698 sqh = upipe->u.intr.qhs[i]; 2699 sqh->elink = data; 2700 sqh->qh.qh_elink = htole32(data->physaddr); 2701 } 2702 xfer->status = USBD_IN_PROGRESS; 2703 /* The ii is already on the examined list, just leave it. */ 2704 } else { 2705 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2706 uhci_del_intr_info(ii); 2707 } 2708 } 2709 2710 /* Deallocate request data structures */ 2711 void 2712 uhci_device_ctrl_done(xfer) 2713 usbd_xfer_handle xfer; 2714 { 2715 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2716 uhci_softc_t *sc = ii->sc; 2717 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2718 2719 #ifdef DIAGNOSTIC 2720 if (!(xfer->rqflags & URQ_REQUEST)) 2721 panic("uhci_ctrl_done: not a request\n"); 2722 #endif 2723 2724 DPRINTF(("uhci_device_ctrl_done xfer=%p ii=%p\n", xfer, ii)); 2725 uhci_del_intr_info(ii); /* remove from active list */ 2726 2727 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2728 2729 if (upipe->u.ctl.length != 0) 2730 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2731 2732 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2733 } 2734 2735 /* Deallocate request data structures */ 2736 void 2737 uhci_device_bulk_done(xfer) 2738 usbd_xfer_handle xfer; 2739 { 2740 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2741 uhci_softc_t *sc = ii->sc; 2742 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2743 2744 uhci_del_intr_info(ii); /* remove from active list */ 2745 2746 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2747 2748 uhci_free_std_chain(sc, ii->stdstart, 0); 2749 2750 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2751 } 2752 2753 /* Add interrupt QH, called with vflock. */ 2754 void 2755 uhci_add_intr(sc, sqh) 2756 uhci_softc_t *sc; 2757 uhci_soft_qh_t *sqh; 2758 { 2759 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2760 uhci_soft_qh_t *eqh; 2761 2762 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2763 2764 eqh = vf->eqh; 2765 sqh->hlink = eqh->hlink; 2766 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2767 eqh->hlink = sqh; 2768 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_Q); 2769 vf->eqh = sqh; 2770 vf->bandwidth++; 2771 } 2772 2773 /* Remove interrupt QH, called with vflock. */ 2774 void 2775 uhci_remove_intr(sc, sqh) 2776 uhci_softc_t *sc; 2777 uhci_soft_qh_t *sqh; 2778 { 2779 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2780 uhci_soft_qh_t *pqh; 2781 2782 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2783 2784 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2785 pqh->hlink = sqh->hlink; 2786 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2787 if (vf->eqh == sqh) 2788 vf->eqh = pqh; 2789 vf->bandwidth--; 2790 } 2791 2792 usbd_status 2793 uhci_device_setintr(sc, upipe, ival) 2794 uhci_softc_t *sc; 2795 struct uhci_pipe *upipe; 2796 int ival; 2797 { 2798 uhci_soft_qh_t *sqh; 2799 int i, npoll, s; 2800 u_int bestbw, bw, bestoffs, offs; 2801 2802 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2803 if (ival == 0) { 2804 printf("uhci_setintr: 0 interval\n"); 2805 return (USBD_INVAL); 2806 } 2807 2808 if (ival > UHCI_VFRAMELIST_COUNT) 2809 ival = UHCI_VFRAMELIST_COUNT; 2810 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2811 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2812 2813 upipe->u.intr.npoll = npoll; 2814 upipe->u.intr.qhs = 2815 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2816 2817 /* 2818 * Figure out which offset in the schedule that has most 2819 * bandwidth left over. 2820 */ 2821 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2822 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2823 for (bw = i = 0; i < npoll; i++) 2824 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2825 if (bw < bestbw) { 2826 bestbw = bw; 2827 bestoffs = offs; 2828 } 2829 } 2830 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2831 2832 for(i = 0; i < npoll; i++) { 2833 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2834 sqh->elink = 0; 2835 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2836 sqh->pos = MOD(i * ival + bestoffs); 2837 } 2838 #undef MOD 2839 2840 s = splusb(); 2841 /* Enter QHs into the controller data structures. */ 2842 for(i = 0; i < npoll; i++) 2843 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2844 splx(s); 2845 2846 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2847 return (USBD_NORMAL_COMPLETION); 2848 } 2849 2850 /* Open a new pipe. */ 2851 usbd_status 2852 uhci_open(pipe) 2853 usbd_pipe_handle pipe; 2854 { 2855 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2856 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2857 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2858 usbd_status err; 2859 int ival; 2860 2861 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2862 pipe, pipe->device->address, 2863 ed->bEndpointAddress, sc->sc_addr)); 2864 2865 upipe->aborting = 0; 2866 upipe->nexttoggle = 0; 2867 2868 if (pipe->device->address == sc->sc_addr) { 2869 switch (ed->bEndpointAddress) { 2870 case USB_CONTROL_ENDPOINT: 2871 pipe->methods = &uhci_root_ctrl_methods; 2872 break; 2873 case UE_DIR_IN | UHCI_INTR_ENDPT: 2874 pipe->methods = &uhci_root_intr_methods; 2875 break; 2876 default: 2877 return (USBD_INVAL); 2878 } 2879 } else { 2880 switch (ed->bmAttributes & UE_XFERTYPE) { 2881 case UE_CONTROL: 2882 pipe->methods = &uhci_device_ctrl_methods; 2883 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2884 if (upipe->u.ctl.sqh == NULL) 2885 goto bad; 2886 upipe->u.ctl.setup = uhci_alloc_std(sc); 2887 if (upipe->u.ctl.setup == NULL) { 2888 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2889 goto bad; 2890 } 2891 upipe->u.ctl.stat = uhci_alloc_std(sc); 2892 if (upipe->u.ctl.stat == NULL) { 2893 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2894 uhci_free_std(sc, upipe->u.ctl.setup); 2895 goto bad; 2896 } 2897 err = usb_allocmem(&sc->sc_bus, 2898 sizeof(usb_device_request_t), 2899 0, &upipe->u.ctl.reqdma); 2900 if (err) { 2901 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2902 uhci_free_std(sc, upipe->u.ctl.setup); 2903 uhci_free_std(sc, upipe->u.ctl.stat); 2904 goto bad; 2905 } 2906 break; 2907 case UE_INTERRUPT: 2908 pipe->methods = &uhci_device_intr_methods; 2909 ival = pipe->interval; 2910 if (ival == USBD_DEFAULT_INTERVAL) 2911 ival = ed->bInterval; 2912 return (uhci_device_setintr(sc, upipe, ival)); 2913 case UE_ISOCHRONOUS: 2914 pipe->methods = &uhci_device_isoc_methods; 2915 return (uhci_setup_isoc(pipe)); 2916 case UE_BULK: 2917 pipe->methods = &uhci_device_bulk_methods; 2918 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2919 if (upipe->u.bulk.sqh == NULL) 2920 goto bad; 2921 break; 2922 } 2923 } 2924 return (USBD_NORMAL_COMPLETION); 2925 2926 bad: 2927 return (USBD_NOMEM); 2928 } 2929 2930 /* 2931 * Data structures and routines to emulate the root hub. 2932 */ 2933 usb_device_descriptor_t uhci_devd = { 2934 USB_DEVICE_DESCRIPTOR_SIZE, 2935 UDESC_DEVICE, /* type */ 2936 {0x00, 0x01}, /* USB version */ 2937 UDCLASS_HUB, /* class */ 2938 UDSUBCLASS_HUB, /* subclass */ 2939 0, /* protocol */ 2940 64, /* max packet */ 2941 {0},{0},{0x00,0x01}, /* device id */ 2942 1,2,0, /* string indicies */ 2943 1 /* # of configurations */ 2944 }; 2945 2946 usb_config_descriptor_t uhci_confd = { 2947 USB_CONFIG_DESCRIPTOR_SIZE, 2948 UDESC_CONFIG, 2949 {USB_CONFIG_DESCRIPTOR_SIZE + 2950 USB_INTERFACE_DESCRIPTOR_SIZE + 2951 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2952 1, 2953 1, 2954 0, 2955 UC_SELF_POWERED, 2956 0 /* max power */ 2957 }; 2958 2959 usb_interface_descriptor_t uhci_ifcd = { 2960 USB_INTERFACE_DESCRIPTOR_SIZE, 2961 UDESC_INTERFACE, 2962 0, 2963 0, 2964 1, 2965 UICLASS_HUB, 2966 UISUBCLASS_HUB, 2967 0, 2968 0 2969 }; 2970 2971 usb_endpoint_descriptor_t uhci_endpd = { 2972 USB_ENDPOINT_DESCRIPTOR_SIZE, 2973 UDESC_ENDPOINT, 2974 UE_DIR_IN | UHCI_INTR_ENDPT, 2975 UE_INTERRUPT, 2976 {8}, 2977 255 2978 }; 2979 2980 usb_hub_descriptor_t uhci_hubd_piix = { 2981 USB_HUB_DESCRIPTOR_SIZE, 2982 UDESC_HUB, 2983 2, 2984 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2985 50, /* power on to power good */ 2986 0, 2987 { 0x00 }, /* both ports are removable */ 2988 }; 2989 2990 int 2991 uhci_str(p, l, s) 2992 usb_string_descriptor_t *p; 2993 int l; 2994 char *s; 2995 { 2996 int i; 2997 2998 if (l == 0) 2999 return (0); 3000 p->bLength = 2 * strlen(s) + 2; 3001 if (l == 1) 3002 return (1); 3003 p->bDescriptorType = UDESC_STRING; 3004 l -= 2; 3005 for (i = 0; s[i] && l > 1; i++, l -= 2) 3006 USETW2(p->bString[i], 0, s[i]); 3007 return (2*i+2); 3008 } 3009 3010 /* 3011 * Simulate a hardware hub by handling all the necessary requests. 3012 */ 3013 usbd_status 3014 uhci_root_ctrl_transfer(xfer) 3015 usbd_xfer_handle xfer; 3016 { 3017 usbd_status err; 3018 3019 /* Insert last in queue. */ 3020 err = usb_insert_transfer(xfer); 3021 if (err) 3022 return (err); 3023 3024 /* 3025 * Pipe isn't running (otherwise err would be USBD_INPROG), 3026 * so start it first. 3027 */ 3028 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3029 } 3030 3031 usbd_status 3032 uhci_root_ctrl_start(xfer) 3033 usbd_xfer_handle xfer; 3034 { 3035 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3036 usb_device_request_t *req; 3037 void *buf = NULL; 3038 int port, x; 3039 int s, len, value, index, status, change, l, totlen = 0; 3040 usb_port_status_t ps; 3041 usbd_status err; 3042 3043 if (sc->sc_dying) 3044 return (USBD_IOERROR); 3045 3046 #ifdef DIAGNOSTIC 3047 if (!(xfer->rqflags & URQ_REQUEST)) 3048 panic("uhci_root_ctrl_transfer: not a request\n"); 3049 #endif 3050 req = &xfer->request; 3051 3052 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3053 req->bmRequestType, req->bRequest)); 3054 3055 len = UGETW(req->wLength); 3056 value = UGETW(req->wValue); 3057 index = UGETW(req->wIndex); 3058 3059 if (len != 0) 3060 buf = KERNADDR(&xfer->dmabuf); 3061 3062 #define C(x,y) ((x) | ((y) << 8)) 3063 switch(C(req->bRequest, req->bmRequestType)) { 3064 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3065 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3066 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3067 /* 3068 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3069 * for the integrated root hub. 3070 */ 3071 break; 3072 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3073 if (len > 0) { 3074 *(u_int8_t *)buf = sc->sc_conf; 3075 totlen = 1; 3076 } 3077 break; 3078 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3079 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3080 switch(value >> 8) { 3081 case UDESC_DEVICE: 3082 if ((value & 0xff) != 0) { 3083 err = USBD_IOERROR; 3084 goto ret; 3085 } 3086 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3087 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3088 memcpy(buf, &uhci_devd, l); 3089 break; 3090 case UDESC_CONFIG: 3091 if ((value & 0xff) != 0) { 3092 err = USBD_IOERROR; 3093 goto ret; 3094 } 3095 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3096 memcpy(buf, &uhci_confd, l); 3097 buf = (char *)buf + l; 3098 len -= l; 3099 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3100 totlen += l; 3101 memcpy(buf, &uhci_ifcd, l); 3102 buf = (char *)buf + l; 3103 len -= l; 3104 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3105 totlen += l; 3106 memcpy(buf, &uhci_endpd, l); 3107 break; 3108 case UDESC_STRING: 3109 if (len == 0) 3110 break; 3111 *(u_int8_t *)buf = 0; 3112 totlen = 1; 3113 switch (value & 0xff) { 3114 case 1: /* Vendor */ 3115 totlen = uhci_str(buf, len, sc->sc_vendor); 3116 break; 3117 case 2: /* Product */ 3118 totlen = uhci_str(buf, len, "UHCI root hub"); 3119 break; 3120 } 3121 break; 3122 default: 3123 err = USBD_IOERROR; 3124 goto ret; 3125 } 3126 break; 3127 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3128 if (len > 0) { 3129 *(u_int8_t *)buf = 0; 3130 totlen = 1; 3131 } 3132 break; 3133 case C(UR_GET_STATUS, UT_READ_DEVICE): 3134 if (len > 1) { 3135 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3136 totlen = 2; 3137 } 3138 break; 3139 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3140 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3141 if (len > 1) { 3142 USETW(((usb_status_t *)buf)->wStatus, 0); 3143 totlen = 2; 3144 } 3145 break; 3146 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3147 if (value >= USB_MAX_DEVICES) { 3148 err = USBD_IOERROR; 3149 goto ret; 3150 } 3151 sc->sc_addr = value; 3152 break; 3153 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3154 if (value != 0 && value != 1) { 3155 err = USBD_IOERROR; 3156 goto ret; 3157 } 3158 sc->sc_conf = value; 3159 break; 3160 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3161 break; 3162 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3163 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3164 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3165 err = USBD_IOERROR; 3166 goto ret; 3167 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3168 break; 3169 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3170 break; 3171 /* Hub requests */ 3172 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3173 break; 3174 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3175 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3176 "port=%d feature=%d\n", 3177 index, value)); 3178 if (index == 1) 3179 port = UHCI_PORTSC1; 3180 else if (index == 2) 3181 port = UHCI_PORTSC2; 3182 else { 3183 err = USBD_IOERROR; 3184 goto ret; 3185 } 3186 switch(value) { 3187 case UHF_PORT_ENABLE: 3188 x = UREAD2(sc, port); 3189 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3190 break; 3191 case UHF_PORT_SUSPEND: 3192 x = UREAD2(sc, port); 3193 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3194 break; 3195 case UHF_PORT_RESET: 3196 x = UREAD2(sc, port); 3197 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3198 break; 3199 case UHF_C_PORT_CONNECTION: 3200 x = UREAD2(sc, port); 3201 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3202 break; 3203 case UHF_C_PORT_ENABLE: 3204 x = UREAD2(sc, port); 3205 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3206 break; 3207 case UHF_C_PORT_OVER_CURRENT: 3208 x = UREAD2(sc, port); 3209 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3210 break; 3211 case UHF_C_PORT_RESET: 3212 sc->sc_isreset = 0; 3213 err = USBD_NORMAL_COMPLETION; 3214 goto ret; 3215 case UHF_PORT_CONNECTION: 3216 case UHF_PORT_OVER_CURRENT: 3217 case UHF_PORT_POWER: 3218 case UHF_PORT_LOW_SPEED: 3219 case UHF_C_PORT_SUSPEND: 3220 default: 3221 err = USBD_IOERROR; 3222 goto ret; 3223 } 3224 break; 3225 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3226 if (index == 1) 3227 port = UHCI_PORTSC1; 3228 else if (index == 2) 3229 port = UHCI_PORTSC2; 3230 else { 3231 err = USBD_IOERROR; 3232 goto ret; 3233 } 3234 if (len > 0) { 3235 *(u_int8_t *)buf = 3236 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3237 UHCI_PORTSC_LS_SHIFT; 3238 totlen = 1; 3239 } 3240 break; 3241 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3242 if (value != 0) { 3243 err = USBD_IOERROR; 3244 goto ret; 3245 } 3246 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3247 totlen = l; 3248 memcpy(buf, &uhci_hubd_piix, l); 3249 break; 3250 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3251 if (len != 4) { 3252 err = USBD_IOERROR; 3253 goto ret; 3254 } 3255 memset(buf, 0, len); 3256 totlen = len; 3257 break; 3258 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3259 if (index == 1) 3260 port = UHCI_PORTSC1; 3261 else if (index == 2) 3262 port = UHCI_PORTSC2; 3263 else { 3264 err = USBD_IOERROR; 3265 goto ret; 3266 } 3267 if (len != 4) { 3268 err = USBD_IOERROR; 3269 goto ret; 3270 } 3271 x = UREAD2(sc, port); 3272 status = change = 0; 3273 if (x & UHCI_PORTSC_CCS ) 3274 status |= UPS_CURRENT_CONNECT_STATUS; 3275 if (x & UHCI_PORTSC_CSC ) 3276 change |= UPS_C_CONNECT_STATUS; 3277 if (x & UHCI_PORTSC_PE ) 3278 status |= UPS_PORT_ENABLED; 3279 if (x & UHCI_PORTSC_POEDC) 3280 change |= UPS_C_PORT_ENABLED; 3281 if (x & UHCI_PORTSC_OCI ) 3282 status |= UPS_OVERCURRENT_INDICATOR; 3283 if (x & UHCI_PORTSC_OCIC ) 3284 change |= UPS_C_OVERCURRENT_INDICATOR; 3285 if (x & UHCI_PORTSC_SUSP ) 3286 status |= UPS_SUSPEND; 3287 if (x & UHCI_PORTSC_LSDA ) 3288 status |= UPS_LOW_SPEED; 3289 status |= UPS_PORT_POWER; 3290 if (sc->sc_isreset) 3291 change |= UPS_C_PORT_RESET; 3292 USETW(ps.wPortStatus, status); 3293 USETW(ps.wPortChange, change); 3294 l = min(len, sizeof ps); 3295 memcpy(buf, &ps, l); 3296 totlen = l; 3297 break; 3298 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3299 err = USBD_IOERROR; 3300 goto ret; 3301 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3302 break; 3303 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3304 if (index == 1) 3305 port = UHCI_PORTSC1; 3306 else if (index == 2) 3307 port = UHCI_PORTSC2; 3308 else { 3309 err = USBD_IOERROR; 3310 goto ret; 3311 } 3312 switch(value) { 3313 case UHF_PORT_ENABLE: 3314 x = UREAD2(sc, port); 3315 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3316 break; 3317 case UHF_PORT_SUSPEND: 3318 x = UREAD2(sc, port); 3319 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3320 break; 3321 case UHF_PORT_RESET: 3322 x = UREAD2(sc, port); 3323 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3324 usb_delay_ms(&sc->sc_bus, 10); 3325 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3326 delay(100); 3327 x = UREAD2(sc, port); 3328 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3329 delay(100); 3330 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3331 index, UREAD2(sc, port))); 3332 sc->sc_isreset = 1; 3333 break; 3334 case UHF_C_PORT_CONNECTION: 3335 case UHF_C_PORT_ENABLE: 3336 case UHF_C_PORT_OVER_CURRENT: 3337 case UHF_PORT_CONNECTION: 3338 case UHF_PORT_OVER_CURRENT: 3339 case UHF_PORT_POWER: 3340 case UHF_PORT_LOW_SPEED: 3341 case UHF_C_PORT_SUSPEND: 3342 case UHF_C_PORT_RESET: 3343 default: 3344 err = USBD_IOERROR; 3345 goto ret; 3346 } 3347 break; 3348 default: 3349 err = USBD_IOERROR; 3350 goto ret; 3351 } 3352 xfer->actlen = totlen; 3353 err = USBD_NORMAL_COMPLETION; 3354 ret: 3355 xfer->status = err; 3356 s = splusb(); 3357 usb_transfer_complete(xfer); 3358 splx(s); 3359 return (USBD_IN_PROGRESS); 3360 } 3361 3362 /* Abort a root control request. */ 3363 void 3364 uhci_root_ctrl_abort(xfer) 3365 usbd_xfer_handle xfer; 3366 { 3367 /* Nothing to do, all transfers are synchronous. */ 3368 } 3369 3370 /* Close the root pipe. */ 3371 void 3372 uhci_root_ctrl_close(pipe) 3373 usbd_pipe_handle pipe; 3374 { 3375 DPRINTF(("uhci_root_ctrl_close\n")); 3376 } 3377 3378 /* Abort a root interrupt request. */ 3379 void 3380 uhci_root_intr_abort(xfer) 3381 usbd_xfer_handle xfer; 3382 { 3383 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3384 3385 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3386 sc->sc_intr_xfer = NULL; 3387 3388 if (xfer->pipe->intrxfer == xfer) { 3389 DPRINTF(("uhci_root_intr_abort: remove\n")); 3390 xfer->pipe->intrxfer = 0; 3391 } 3392 xfer->status = USBD_CANCELLED; 3393 #ifdef DIAGNOSTIC 3394 UXFER(xfer)->iinfo.isdone = 1; 3395 #endif 3396 usb_transfer_complete(xfer); 3397 } 3398 3399 usbd_status 3400 uhci_root_intr_transfer(xfer) 3401 usbd_xfer_handle xfer; 3402 { 3403 usbd_status err; 3404 3405 /* Insert last in queue. */ 3406 err = usb_insert_transfer(xfer); 3407 if (err) 3408 return (err); 3409 3410 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3411 * start first 3412 */ 3413 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3414 } 3415 3416 /* Start a transfer on the root interrupt pipe */ 3417 usbd_status 3418 uhci_root_intr_start(xfer) 3419 usbd_xfer_handle xfer; 3420 { 3421 usbd_pipe_handle pipe = xfer->pipe; 3422 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3423 3424 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3425 xfer, xfer->length, xfer->flags)); 3426 3427 if (sc->sc_dying) 3428 return (USBD_IOERROR); 3429 3430 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3431 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3432 sc->sc_intr_xfer = xfer; 3433 return (USBD_IN_PROGRESS); 3434 } 3435 3436 /* Close the root interrupt pipe. */ 3437 void 3438 uhci_root_intr_close(pipe) 3439 usbd_pipe_handle pipe; 3440 { 3441 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3442 3443 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3444 sc->sc_intr_xfer = NULL; 3445 DPRINTF(("uhci_root_intr_close\n")); 3446 } 3447
Indexes created Tue Sep 30 20:09:53 GMT 2025