uhci.c revision 1.195
1 /* $NetBSD: uhci.c,v 1.195 2006/04/14 16:31:27 christos 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, 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 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/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.195 2006/04/14 16:31:27 christos Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data stored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 int isread; 149 uhci_soft_qh_t **qhs; 150 } intr; 151 /* Bulk pipe */ 152 struct { 153 uhci_soft_qh_t *sqh; 154 u_int length; 155 int isread; 156 } bulk; 157 /* Iso pipe */ 158 struct iso { 159 uhci_soft_td_t **stds; 160 int next, inuse; 161 } iso; 162 } u; 163 }; 164 165 Static void uhci_globalreset(uhci_softc_t *); 166 Static usbd_status uhci_portreset(uhci_softc_t*, int); 167 Static void uhci_reset(uhci_softc_t *); 168 Static void uhci_shutdown(void *v); 169 Static void uhci_power(int, void *); 170 Static usbd_status uhci_run(uhci_softc_t *, int run); 171 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 172 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 173 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 174 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 175 #if 0 176 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 177 uhci_intr_info_t *); 178 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 179 #endif 180 181 Static void uhci_free_std_chain(uhci_softc_t *, 182 uhci_soft_td_t *, uhci_soft_td_t *); 183 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 184 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 185 uhci_soft_td_t **, uhci_soft_td_t **); 186 Static void uhci_poll_hub(void *); 187 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 188 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 189 Static void uhci_idone(uhci_intr_info_t *); 190 191 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 192 193 Static void uhci_timeout(void *); 194 Static void uhci_timeout_task(void *); 195 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 198 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 200 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 201 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 202 Static void uhci_add_loop(uhci_softc_t *sc); 203 Static void uhci_rem_loop(uhci_softc_t *sc); 204 205 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 206 Static void uhci_device_isoc_enter(usbd_xfer_handle); 207 208 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 209 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 210 211 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 212 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 213 214 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 216 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 217 Static void uhci_device_ctrl_close(usbd_pipe_handle); 218 Static void uhci_device_ctrl_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 222 Static void uhci_device_intr_abort(usbd_xfer_handle); 223 Static void uhci_device_intr_close(usbd_pipe_handle); 224 Static void uhci_device_intr_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 228 Static void uhci_device_bulk_abort(usbd_xfer_handle); 229 Static void uhci_device_bulk_close(usbd_pipe_handle); 230 Static void uhci_device_bulk_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 233 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 234 Static void uhci_device_isoc_abort(usbd_xfer_handle); 235 Static void uhci_device_isoc_close(usbd_pipe_handle); 236 Static void uhci_device_isoc_done(usbd_xfer_handle); 237 238 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 239 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 240 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 241 Static void uhci_root_ctrl_close(usbd_pipe_handle); 242 Static void uhci_root_ctrl_done(usbd_xfer_handle); 243 244 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 245 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 246 Static void uhci_root_intr_abort(usbd_xfer_handle); 247 Static void uhci_root_intr_close(usbd_pipe_handle); 248 Static void uhci_root_intr_done(usbd_xfer_handle); 249 250 Static usbd_status uhci_open(usbd_pipe_handle); 251 Static void uhci_poll(struct usbd_bus *); 252 Static void uhci_softintr(void *); 253 254 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 255 256 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 258 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 259 struct uhci_pipe *pipe, int ival); 260 261 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 262 Static void uhci_noop(usbd_pipe_handle pipe); 263 264 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 265 uhci_soft_qh_t *); 266 267 #ifdef UHCI_DEBUG 268 Static void uhci_dump_all(uhci_softc_t *); 269 Static void uhci_dumpregs(uhci_softc_t *); 270 Static void uhci_dump_qhs(uhci_soft_qh_t *); 271 Static void uhci_dump_qh(uhci_soft_qh_t *); 272 Static void uhci_dump_tds(uhci_soft_td_t *); 273 Static void uhci_dump_td(uhci_soft_td_t *); 274 Static void uhci_dump_ii(uhci_intr_info_t *ii); 275 void uhci_dump(void); 276 #endif 277 278 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 279 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 280 #define UWRITE1(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE2(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UWRITE4(sc, r, x) \ 287 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 288 } while (/*CONSTCOND*/0) 289 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 290 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 291 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 292 293 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 294 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 295 296 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 297 298 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 299 300 #define UHCI_INTR_ENDPT 1 301 302 struct usbd_bus_methods uhci_bus_methods = { 303 uhci_open, 304 uhci_softintr, 305 uhci_poll, 306 uhci_allocm, 307 uhci_freem, 308 uhci_allocx, 309 uhci_freex, 310 }; 311 312 struct usbd_pipe_methods uhci_root_ctrl_methods = { 313 uhci_root_ctrl_transfer, 314 uhci_root_ctrl_start, 315 uhci_root_ctrl_abort, 316 uhci_root_ctrl_close, 317 uhci_noop, 318 uhci_root_ctrl_done, 319 }; 320 321 struct usbd_pipe_methods uhci_root_intr_methods = { 322 uhci_root_intr_transfer, 323 uhci_root_intr_start, 324 uhci_root_intr_abort, 325 uhci_root_intr_close, 326 uhci_noop, 327 uhci_root_intr_done, 328 }; 329 330 struct usbd_pipe_methods uhci_device_ctrl_methods = { 331 uhci_device_ctrl_transfer, 332 uhci_device_ctrl_start, 333 uhci_device_ctrl_abort, 334 uhci_device_ctrl_close, 335 uhci_noop, 336 uhci_device_ctrl_done, 337 }; 338 339 struct usbd_pipe_methods uhci_device_intr_methods = { 340 uhci_device_intr_transfer, 341 uhci_device_intr_start, 342 uhci_device_intr_abort, 343 uhci_device_intr_close, 344 uhci_device_clear_toggle, 345 uhci_device_intr_done, 346 }; 347 348 struct usbd_pipe_methods uhci_device_bulk_methods = { 349 uhci_device_bulk_transfer, 350 uhci_device_bulk_start, 351 uhci_device_bulk_abort, 352 uhci_device_bulk_close, 353 uhci_device_clear_toggle, 354 uhci_device_bulk_done, 355 }; 356 357 struct usbd_pipe_methods uhci_device_isoc_methods = { 358 uhci_device_isoc_transfer, 359 uhci_device_isoc_start, 360 uhci_device_isoc_abort, 361 uhci_device_isoc_close, 362 uhci_noop, 363 uhci_device_isoc_done, 364 }; 365 366 #define uhci_add_intr_info(sc, ii) \ 367 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 368 #define uhci_del_intr_info(ii) \ 369 do { \ 370 LIST_REMOVE((ii), list); \ 371 (ii)->list.le_prev = NULL; \ 372 } while (0) 373 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 374 375 Static inline uhci_soft_qh_t * 376 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 377 { 378 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 379 380 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 381 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 382 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 383 printf("uhci_find_prev_qh: QH not found\n"); 384 return (NULL); 385 } 386 #endif 387 } 388 return (pqh); 389 } 390 391 void 392 uhci_globalreset(uhci_softc_t *sc) 393 { 394 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 395 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 396 UHCICMD(sc, 0); /* do nothing */ 397 } 398 399 usbd_status 400 uhci_init(uhci_softc_t *sc) 401 { 402 usbd_status err; 403 int i, j; 404 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 405 uhci_soft_td_t *std; 406 407 DPRINTFN(1,("uhci_init: start\n")); 408 409 #ifdef UHCI_DEBUG 410 thesc = sc; 411 412 if (uhcidebug > 2) 413 uhci_dumpregs(sc); 414 #endif 415 416 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 417 uhci_globalreset(sc); /* reset the controller */ 418 uhci_reset(sc); 419 420 #ifdef __NetBSD__ 421 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 422 USB_MEM_RESERVE); 423 #endif 424 425 /* Allocate and initialize real frame array. */ 426 err = usb_allocmem(&sc->sc_bus, 427 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 428 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 429 if (err) 430 return (err); 431 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 432 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 433 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 434 435 /* 436 * Allocate a TD, inactive, that hangs from the last QH. 437 * This is to avoid a bug in the PIIX that makes it run berserk 438 * otherwise. 439 */ 440 std = uhci_alloc_std(sc); 441 if (std == NULL) 442 return (USBD_NOMEM); 443 std->link.std = NULL; 444 std->td.td_link = htole32(UHCI_PTR_T); 445 std->td.td_status = htole32(0); /* inactive */ 446 std->td.td_token = htole32(0); 447 std->td.td_buffer = htole32(0); 448 449 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 450 lsqh = uhci_alloc_sqh(sc); 451 if (lsqh == NULL) 452 return (USBD_NOMEM); 453 lsqh->hlink = NULL; 454 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 455 lsqh->elink = std; 456 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 457 sc->sc_last_qh = lsqh; 458 459 /* Allocate the dummy QH where bulk traffic will be queued. */ 460 bsqh = uhci_alloc_sqh(sc); 461 if (bsqh == NULL) 462 return (USBD_NOMEM); 463 bsqh->hlink = lsqh; 464 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 465 bsqh->elink = NULL; 466 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 467 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 468 469 /* Allocate dummy QH where high speed control traffic will be queued. */ 470 chsqh = uhci_alloc_sqh(sc); 471 if (chsqh == NULL) 472 return (USBD_NOMEM); 473 chsqh->hlink = bsqh; 474 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 475 chsqh->elink = NULL; 476 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 477 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 478 479 /* Allocate dummy QH where control traffic will be queued. */ 480 clsqh = uhci_alloc_sqh(sc); 481 if (clsqh == NULL) 482 return (USBD_NOMEM); 483 clsqh->hlink = bsqh; 484 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 485 clsqh->elink = NULL; 486 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 487 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 488 489 /* 490 * Make all (virtual) frame list pointers point to the interrupt 491 * queue heads and the interrupt queue heads at the control 492 * queue head and point the physical frame list to the virtual. 493 */ 494 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 495 std = uhci_alloc_std(sc); 496 sqh = uhci_alloc_sqh(sc); 497 if (std == NULL || sqh == NULL) 498 return (USBD_NOMEM); 499 std->link.sqh = sqh; 500 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 501 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 502 std->td.td_token = htole32(0); 503 std->td.td_buffer = htole32(0); 504 sqh->hlink = clsqh; 505 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 506 sqh->elink = NULL; 507 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 508 sc->sc_vframes[i].htd = std; 509 sc->sc_vframes[i].etd = std; 510 sc->sc_vframes[i].hqh = sqh; 511 sc->sc_vframes[i].eqh = sqh; 512 for (j = i; 513 j < UHCI_FRAMELIST_COUNT; 514 j += UHCI_VFRAMELIST_COUNT) 515 sc->sc_pframes[j] = htole32(std->physaddr); 516 } 517 518 LIST_INIT(&sc->sc_intrhead); 519 520 SIMPLEQ_INIT(&sc->sc_free_xfers); 521 522 usb_callout_init(sc->sc_poll_handle); 523 524 /* Set up the bus struct. */ 525 sc->sc_bus.methods = &uhci_bus_methods; 526 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 527 528 #if defined(__NetBSD__) || defined(__OpenBSD__) 529 sc->sc_suspend = PWR_RESUME; 530 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 531 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 532 #endif 533 534 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 535 536 DPRINTFN(1,("uhci_init: enabling\n")); 537 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 538 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 539 540 return (uhci_run(sc, 1)); /* and here we go... */ 541 } 542 543 #if defined(__NetBSD__) || defined(__OpenBSD__) 544 int 545 uhci_activate(device_ptr_t self, enum devact act) 546 { 547 struct uhci_softc *sc = (struct uhci_softc *)self; 548 int rv = 0; 549 550 switch (act) { 551 case DVACT_ACTIVATE: 552 return (EOPNOTSUPP); 553 554 case DVACT_DEACTIVATE: 555 if (sc->sc_child != NULL) 556 rv = config_deactivate(sc->sc_child); 557 break; 558 } 559 return (rv); 560 } 561 562 int 563 uhci_detach(struct uhci_softc *sc, int flags) 564 { 565 usbd_xfer_handle xfer; 566 int rv = 0; 567 568 if (sc->sc_child != NULL) 569 rv = config_detach(sc->sc_child, flags); 570 571 if (rv != 0) 572 return (rv); 573 574 #if defined(__NetBSD__) || defined(__OpenBSD__) 575 powerhook_disestablish(sc->sc_powerhook); 576 shutdownhook_disestablish(sc->sc_shutdownhook); 577 #endif 578 579 /* Free all xfers associated with this HC. */ 580 for (;;) { 581 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 582 if (xfer == NULL) 583 break; 584 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 585 free(xfer, M_USB); 586 } 587 588 /* XXX free other data structures XXX */ 589 590 return (rv); 591 } 592 #endif 593 594 usbd_status 595 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 596 { 597 struct uhci_softc *sc = (struct uhci_softc *)bus; 598 usbd_status status; 599 u_int32_t n; 600 601 /* 602 * XXX 603 * Since we are allocating a buffer we can assume that we will 604 * need TDs for it. Since we don't want to allocate those from 605 * an interrupt context, we allocate them here and free them again. 606 * This is no guarantee that we'll get the TDs next time... 607 */ 608 n = size / 8; 609 if (n > 16) { 610 u_int32_t i; 611 uhci_soft_td_t **stds; 612 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 613 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 614 M_WAITOK|M_ZERO); 615 for(i=0; i < n; i++) 616 stds[i] = uhci_alloc_std(sc); 617 for(i=0; i < n; i++) 618 if (stds[i] != NULL) 619 uhci_free_std(sc, stds[i]); 620 free(stds, M_TEMP); 621 } 622 623 624 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 625 #ifdef __NetBSD__ 626 if (status == USBD_NOMEM) 627 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 628 #endif 629 return status; 630 } 631 632 void 633 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 634 { 635 #ifdef __NetBSD__ 636 if (dma->block->flags & USB_DMA_RESERVE) { 637 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 638 dma); 639 return; 640 } 641 #endif 642 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 643 } 644 645 usbd_xfer_handle 646 uhci_allocx(struct usbd_bus *bus) 647 { 648 struct uhci_softc *sc = (struct uhci_softc *)bus; 649 usbd_xfer_handle xfer; 650 651 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 652 if (xfer != NULL) { 653 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 654 #ifdef DIAGNOSTIC 655 if (xfer->busy_free != XFER_FREE) { 656 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 657 xfer->busy_free); 658 } 659 #endif 660 } else { 661 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 662 } 663 if (xfer != NULL) { 664 memset(xfer, 0, sizeof (struct uhci_xfer)); 665 UXFER(xfer)->iinfo.sc = sc; 666 #ifdef DIAGNOSTIC 667 UXFER(xfer)->iinfo.isdone = 1; 668 xfer->busy_free = XFER_BUSY; 669 #endif 670 } 671 return (xfer); 672 } 673 674 void 675 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 676 { 677 struct uhci_softc *sc = (struct uhci_softc *)bus; 678 679 #ifdef DIAGNOSTIC 680 if (xfer->busy_free != XFER_BUSY) { 681 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 682 xfer->busy_free); 683 return; 684 } 685 xfer->busy_free = XFER_FREE; 686 if (!UXFER(xfer)->iinfo.isdone) { 687 printf("uhci_freex: !isdone\n"); 688 return; 689 } 690 #endif 691 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 692 } 693 694 /* 695 * Shut down the controller when the system is going down. 696 */ 697 void 698 uhci_shutdown(void *v) 699 { 700 uhci_softc_t *sc = v; 701 int s; 702 703 DPRINTF(("uhci_shutdown: stopping the HC\n")); 704 705 /* 706 * Use polling mode to prevent the interrupts shutting 707 * us down before we shut them down. 708 */ 709 s = splhardusb(); 710 sc->sc_bus.use_polling++; 711 uhci_run(sc, 0); /* stop the controller */ 712 sc->sc_bus.use_polling--; 713 splx(s); 714 } 715 716 /* 717 * Handle suspend/resume. 718 * 719 * We need to switch to polling mode here, because this routine is 720 * called from an interrupt context. This is all right since we 721 * are almost suspended anyway. 722 */ 723 void 724 uhci_power(int why, void *v) 725 { 726 uhci_softc_t *sc = v; 727 int cmd; 728 int s; 729 730 s = splhardusb(); 731 cmd = UREAD2(sc, UHCI_CMD); 732 733 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 734 sc, why, sc->sc_suspend, cmd)); 735 736 switch (why) { 737 case PWR_SUSPEND: 738 case PWR_STANDBY: 739 #ifdef UHCI_DEBUG 740 if (uhcidebug > 2) 741 uhci_dumpregs(sc); 742 #endif 743 if (sc->sc_intr_xfer != NULL) 744 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 745 sc->sc_intr_xfer); 746 sc->sc_bus.use_polling++; 747 uhci_run(sc, 0); /* stop the controller */ 748 749 /* save some state if BIOS doesn't */ 750 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 751 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 752 753 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 754 755 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 756 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 757 sc->sc_suspend = why; 758 sc->sc_bus.use_polling--; 759 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 760 break; 761 case PWR_RESUME: 762 #ifdef DIAGNOSTIC 763 if (sc->sc_suspend == PWR_RESUME) 764 printf("uhci_power: weird, resume without suspend.\n"); 765 #endif 766 sc->sc_bus.use_polling++; 767 sc->sc_suspend = why; 768 if (cmd & UHCI_CMD_RS) 769 uhci_run(sc, 0); /* in case BIOS has started it */ 770 771 /* restore saved state */ 772 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 773 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 774 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 775 776 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 777 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 778 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 779 UHCICMD(sc, UHCI_CMD_MAXP); 780 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 781 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 782 uhci_run(sc, 1); /* and start traffic again */ 783 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 784 sc->sc_bus.use_polling--; 785 if (sc->sc_intr_xfer != NULL) 786 usb_callout(sc->sc_poll_handle, sc->sc_ival, 787 uhci_poll_hub, sc->sc_intr_xfer); 788 #ifdef UHCI_DEBUG 789 if (uhcidebug > 2) 790 uhci_dumpregs(sc); 791 #endif 792 break; 793 case PWR_SOFTSUSPEND: 794 case PWR_SOFTSTANDBY: 795 case PWR_SOFTRESUME: 796 break; 797 } 798 splx(s); 799 } 800 801 #ifdef UHCI_DEBUG 802 Static void 803 uhci_dumpregs(uhci_softc_t *sc) 804 { 805 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 806 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 807 USBDEVNAME(sc->sc_bus.bdev), 808 UREAD2(sc, UHCI_CMD), 809 UREAD2(sc, UHCI_STS), 810 UREAD2(sc, UHCI_INTR), 811 UREAD2(sc, UHCI_FRNUM), 812 UREAD4(sc, UHCI_FLBASEADDR), 813 UREAD1(sc, UHCI_SOF), 814 UREAD2(sc, UHCI_PORTSC1), 815 UREAD2(sc, UHCI_PORTSC2))); 816 } 817 818 void 819 uhci_dump_td(uhci_soft_td_t *p) 820 { 821 char sbuf[128], sbuf2[128]; 822 823 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 824 "token=0x%08lx buffer=0x%08lx\n", 825 p, (long)p->physaddr, 826 (long)le32toh(p->td.td_link), 827 (long)le32toh(p->td.td_status), 828 (long)le32toh(p->td.td_token), 829 (long)le32toh(p->td.td_buffer))); 830 831 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 832 sbuf, sizeof(sbuf)); 833 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 834 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 835 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 836 sbuf2, sizeof(sbuf2)); 837 838 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 839 "D=%d,maxlen=%d\n", sbuf, sbuf2, 840 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 841 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 842 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 843 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 844 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 845 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 846 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 847 } 848 849 void 850 uhci_dump_qh(uhci_soft_qh_t *sqh) 851 { 852 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 853 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 854 le32toh(sqh->qh.qh_elink))); 855 } 856 857 858 #if 1 859 void 860 uhci_dump(void) 861 { 862 uhci_dump_all(thesc); 863 } 864 #endif 865 866 void 867 uhci_dump_all(uhci_softc_t *sc) 868 { 869 uhci_dumpregs(sc); 870 printf("intrs=%d\n", sc->sc_bus.no_intrs); 871 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 872 uhci_dump_qh(sc->sc_lctl_start); 873 } 874 875 876 void 877 uhci_dump_qhs(uhci_soft_qh_t *sqh) 878 { 879 uhci_dump_qh(sqh); 880 881 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 882 * Traverses sideways first, then down. 883 * 884 * QH1 885 * QH2 886 * No QH 887 * TD2.1 888 * TD2.2 889 * TD1.1 890 * etc. 891 * 892 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 893 */ 894 895 896 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 897 uhci_dump_qhs(sqh->hlink); 898 else 899 DPRINTF(("No QH\n")); 900 901 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 902 uhci_dump_tds(sqh->elink); 903 else 904 DPRINTF(("No TD\n")); 905 } 906 907 void 908 uhci_dump_tds(uhci_soft_td_t *std) 909 { 910 uhci_soft_td_t *td; 911 912 for(td = std; td != NULL; td = td->link.std) { 913 uhci_dump_td(td); 914 915 /* Check whether the link pointer in this TD marks 916 * the link pointer as end of queue. This avoids 917 * printing the free list in case the queue/TD has 918 * already been moved there (seatbelt). 919 */ 920 if (le32toh(td->td.td_link) & UHCI_PTR_T || 921 le32toh(td->td.td_link) == 0) 922 break; 923 } 924 } 925 926 Static void 927 uhci_dump_ii(uhci_intr_info_t *ii) 928 { 929 usbd_pipe_handle pipe; 930 usb_endpoint_descriptor_t *ed; 931 usbd_device_handle dev; 932 933 #ifdef DIAGNOSTIC 934 #define DONE ii->isdone 935 #else 936 #define DONE 0 937 #endif 938 if (ii == NULL) { 939 printf("ii NULL\n"); 940 return; 941 } 942 if (ii->xfer == NULL) { 943 printf("ii %p: done=%d xfer=NULL\n", 944 ii, DONE); 945 return; 946 } 947 pipe = ii->xfer->pipe; 948 if (pipe == NULL) { 949 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 950 ii, DONE, ii->xfer); 951 return; 952 } 953 if (pipe->endpoint == NULL) { 954 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 955 ii, DONE, ii->xfer, pipe); 956 return; 957 } 958 if (pipe->device == NULL) { 959 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 960 ii, DONE, ii->xfer, pipe); 961 return; 962 } 963 ed = pipe->endpoint->edesc; 964 dev = pipe->device; 965 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", 966 ii, DONE, ii->xfer, dev, 967 UGETW(dev->ddesc.idVendor), 968 UGETW(dev->ddesc.idProduct), 969 dev->address, pipe, 970 ed->bEndpointAddress, ed->bmAttributes); 971 #undef DONE 972 } 973 974 void uhci_dump_iis(struct uhci_softc *sc); 975 void 976 uhci_dump_iis(struct uhci_softc *sc) 977 { 978 uhci_intr_info_t *ii; 979 980 printf("intr_info list:\n"); 981 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 982 uhci_dump_ii(ii); 983 } 984 985 void iidump(void); 986 void iidump(void) { uhci_dump_iis(thesc); } 987 988 #endif 989 990 /* 991 * This routine is executed periodically and simulates interrupts 992 * from the root controller interrupt pipe for port status change. 993 */ 994 void 995 uhci_poll_hub(void *addr) 996 { 997 usbd_xfer_handle xfer = addr; 998 usbd_pipe_handle pipe = xfer->pipe; 999 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1000 int s; 1001 u_char *p; 1002 1003 DPRINTFN(20, ("uhci_poll_hub\n")); 1004 1005 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1006 1007 p = KERNADDR(&xfer->dmabuf, 0); 1008 p[0] = 0; 1009 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1010 p[0] |= 1<<1; 1011 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1012 p[0] |= 1<<2; 1013 if (p[0] == 0) 1014 /* No change, try again in a while */ 1015 return; 1016 1017 xfer->actlen = 1; 1018 xfer->status = USBD_NORMAL_COMPLETION; 1019 s = splusb(); 1020 xfer->device->bus->intr_context++; 1021 usb_transfer_complete(xfer); 1022 xfer->device->bus->intr_context--; 1023 splx(s); 1024 } 1025 1026 void 1027 uhci_root_intr_done(usbd_xfer_handle xfer) 1028 { 1029 } 1030 1031 void 1032 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1033 { 1034 } 1035 1036 /* 1037 * Let the last QH loop back to the high speed control transfer QH. 1038 * This is what intel calls "bandwidth reclamation" and improves 1039 * USB performance a lot for some devices. 1040 * If we are already looping, just count it. 1041 */ 1042 void 1043 uhci_add_loop(uhci_softc_t *sc) { 1044 #ifdef UHCI_DEBUG 1045 if (uhcinoloop) 1046 return; 1047 #endif 1048 if (++sc->sc_loops == 1) { 1049 DPRINTFN(5,("uhci_start_loop: add\n")); 1050 /* Note, we don't loop back the soft pointer. */ 1051 sc->sc_last_qh->qh.qh_hlink = 1052 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1053 } 1054 } 1055 1056 void 1057 uhci_rem_loop(uhci_softc_t *sc) { 1058 #ifdef UHCI_DEBUG 1059 if (uhcinoloop) 1060 return; 1061 #endif 1062 if (--sc->sc_loops == 0) { 1063 DPRINTFN(5,("uhci_end_loop: remove\n")); 1064 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1065 } 1066 } 1067 1068 /* Add high speed control QH, called at splusb(). */ 1069 void 1070 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1071 { 1072 uhci_soft_qh_t *eqh; 1073 1074 SPLUSBCHECK; 1075 1076 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1077 eqh = sc->sc_hctl_end; 1078 sqh->hlink = eqh->hlink; 1079 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1080 eqh->hlink = sqh; 1081 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1082 sc->sc_hctl_end = sqh; 1083 #ifdef UHCI_CTL_LOOP 1084 uhci_add_loop(sc); 1085 #endif 1086 } 1087 1088 /* Remove high speed control QH, called at splusb(). */ 1089 void 1090 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1091 { 1092 uhci_soft_qh_t *pqh; 1093 1094 SPLUSBCHECK; 1095 1096 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1097 #ifdef UHCI_CTL_LOOP 1098 uhci_rem_loop(sc); 1099 #endif 1100 /* 1101 * The T bit should be set in the elink of the QH so that the HC 1102 * doesn't follow the pointer. This condition may fail if the 1103 * the transferred packet was short so that the QH still points 1104 * at the last used TD. 1105 * In this case we set the T bit and wait a little for the HC 1106 * to stop looking at the TD. 1107 */ 1108 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1109 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1110 delay(UHCI_QH_REMOVE_DELAY); 1111 } 1112 1113 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1114 pqh->hlink = sqh->hlink; 1115 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1116 delay(UHCI_QH_REMOVE_DELAY); 1117 if (sc->sc_hctl_end == sqh) 1118 sc->sc_hctl_end = pqh; 1119 } 1120 1121 /* Add low speed control QH, called at splusb(). */ 1122 void 1123 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1124 { 1125 uhci_soft_qh_t *eqh; 1126 1127 SPLUSBCHECK; 1128 1129 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1130 eqh = sc->sc_lctl_end; 1131 sqh->hlink = eqh->hlink; 1132 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1133 eqh->hlink = sqh; 1134 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1135 sc->sc_lctl_end = sqh; 1136 } 1137 1138 /* Remove low speed control QH, called at splusb(). */ 1139 void 1140 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1141 { 1142 uhci_soft_qh_t *pqh; 1143 1144 SPLUSBCHECK; 1145 1146 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1147 /* See comment in uhci_remove_hs_ctrl() */ 1148 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1149 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1150 delay(UHCI_QH_REMOVE_DELAY); 1151 } 1152 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1153 pqh->hlink = sqh->hlink; 1154 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1155 delay(UHCI_QH_REMOVE_DELAY); 1156 if (sc->sc_lctl_end == sqh) 1157 sc->sc_lctl_end = pqh; 1158 } 1159 1160 /* Add bulk QH, called at splusb(). */ 1161 void 1162 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1163 { 1164 uhci_soft_qh_t *eqh; 1165 1166 SPLUSBCHECK; 1167 1168 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1169 eqh = sc->sc_bulk_end; 1170 sqh->hlink = eqh->hlink; 1171 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1172 eqh->hlink = sqh; 1173 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1174 sc->sc_bulk_end = sqh; 1175 uhci_add_loop(sc); 1176 } 1177 1178 /* Remove bulk QH, called at splusb(). */ 1179 void 1180 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1181 { 1182 uhci_soft_qh_t *pqh; 1183 1184 SPLUSBCHECK; 1185 1186 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1187 uhci_rem_loop(sc); 1188 /* See comment in uhci_remove_hs_ctrl() */ 1189 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1190 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1191 delay(UHCI_QH_REMOVE_DELAY); 1192 } 1193 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1194 pqh->hlink = sqh->hlink; 1195 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1196 delay(UHCI_QH_REMOVE_DELAY); 1197 if (sc->sc_bulk_end == sqh) 1198 sc->sc_bulk_end = pqh; 1199 } 1200 1201 Static int uhci_intr1(uhci_softc_t *); 1202 1203 int 1204 uhci_intr(void *arg) 1205 { 1206 uhci_softc_t *sc = arg; 1207 1208 if (sc->sc_dying) 1209 return (0); 1210 1211 if (sc->sc_bus.use_polling) { 1212 #ifdef DIAGNOSTIC 1213 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1214 #endif 1215 return (0); 1216 } 1217 1218 return (uhci_intr1(sc)); 1219 } 1220 1221 int 1222 uhci_intr1(uhci_softc_t *sc) 1223 { 1224 int status; 1225 int ack; 1226 1227 #ifdef UHCI_DEBUG 1228 if (uhcidebug > 15) { 1229 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1230 uhci_dumpregs(sc); 1231 } 1232 #endif 1233 1234 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1235 if (status == 0) /* The interrupt was not for us. */ 1236 return (0); 1237 1238 if (sc->sc_suspend != PWR_RESUME) { 1239 printf("%s: interrupt while not operating ignored\n", 1240 USBDEVNAME(sc->sc_bus.bdev)); 1241 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1242 return (0); 1243 } 1244 1245 ack = 0; 1246 if (status & UHCI_STS_USBINT) 1247 ack |= UHCI_STS_USBINT; 1248 if (status & UHCI_STS_USBEI) 1249 ack |= UHCI_STS_USBEI; 1250 if (status & UHCI_STS_RD) { 1251 ack |= UHCI_STS_RD; 1252 #ifdef UHCI_DEBUG 1253 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1254 #endif 1255 } 1256 if (status & UHCI_STS_HSE) { 1257 ack |= UHCI_STS_HSE; 1258 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1259 } 1260 if (status & UHCI_STS_HCPE) { 1261 ack |= UHCI_STS_HCPE; 1262 printf("%s: host controller process error\n", 1263 USBDEVNAME(sc->sc_bus.bdev)); 1264 } 1265 if (status & UHCI_STS_HCH) { 1266 /* no acknowledge needed */ 1267 if (!sc->sc_dying) { 1268 printf("%s: host controller halted\n", 1269 USBDEVNAME(sc->sc_bus.bdev)); 1270 #ifdef UHCI_DEBUG 1271 uhci_dump_all(sc); 1272 #endif 1273 } 1274 sc->sc_dying = 1; 1275 } 1276 1277 if (!ack) 1278 return (0); /* nothing to acknowledge */ 1279 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1280 1281 sc->sc_bus.no_intrs++; 1282 usb_schedsoftintr(&sc->sc_bus); 1283 1284 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1285 1286 return (1); 1287 } 1288 1289 void 1290 uhci_softintr(void *v) 1291 { 1292 uhci_softc_t *sc = v; 1293 uhci_intr_info_t *ii, *nextii; 1294 1295 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1296 sc->sc_bus.intr_context)); 1297 1298 sc->sc_bus.intr_context++; 1299 1300 /* 1301 * Interrupts on UHCI really suck. When the host controller 1302 * interrupts because a transfer is completed there is no 1303 * way of knowing which transfer it was. You can scan down 1304 * the TDs and QHs of the previous frame to limit the search, 1305 * but that assumes that the interrupt was not delayed by more 1306 * than 1 ms, which may not always be true (e.g. after debug 1307 * output on a slow console). 1308 * We scan all interrupt descriptors to see if any have 1309 * completed. 1310 */ 1311 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1312 nextii = LIST_NEXT(ii, list); 1313 uhci_check_intr(sc, ii); 1314 } 1315 1316 #ifdef USB_USE_SOFTINTR 1317 if (sc->sc_softwake) { 1318 sc->sc_softwake = 0; 1319 wakeup(&sc->sc_softwake); 1320 } 1321 #endif /* USB_USE_SOFTINTR */ 1322 1323 sc->sc_bus.intr_context--; 1324 } 1325 1326 /* Check for an interrupt. */ 1327 void 1328 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1329 { 1330 uhci_soft_td_t *std, *lstd; 1331 u_int32_t status; 1332 1333 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1334 #ifdef DIAGNOSTIC 1335 if (ii == NULL) { 1336 printf("uhci_check_intr: no ii? %p\n", ii); 1337 return; 1338 } 1339 #endif 1340 if (ii->xfer->status == USBD_CANCELLED || 1341 ii->xfer->status == USBD_TIMEOUT) { 1342 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1343 return; 1344 } 1345 1346 if (ii->stdstart == NULL) 1347 return; 1348 lstd = ii->stdend; 1349 #ifdef DIAGNOSTIC 1350 if (lstd == NULL) { 1351 printf("uhci_check_intr: std==0\n"); 1352 return; 1353 } 1354 #endif 1355 /* 1356 * If the last TD is still active we need to check whether there 1357 * is an error somewhere in the middle, or whether there was a 1358 * short packet (SPD and not ACTIVE). 1359 */ 1360 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1361 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1362 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1363 status = le32toh(std->td.td_status); 1364 /* If there's an active TD the xfer isn't done. */ 1365 if (status & UHCI_TD_ACTIVE) 1366 break; 1367 /* Any kind of error makes the xfer done. */ 1368 if (status & UHCI_TD_STALLED) 1369 goto done; 1370 /* We want short packets, and it is short: it's done */ 1371 if ((status & UHCI_TD_SPD) && 1372 UHCI_TD_GET_ACTLEN(status) < 1373 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1374 goto done; 1375 } 1376 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1377 ii, ii->stdstart)); 1378 return; 1379 } 1380 done: 1381 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1382 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1383 uhci_idone(ii); 1384 } 1385 1386 /* Called at splusb() */ 1387 void 1388 uhci_idone(uhci_intr_info_t *ii) 1389 { 1390 usbd_xfer_handle xfer = ii->xfer; 1391 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1392 uhci_soft_td_t *std; 1393 u_int32_t status = 0, nstatus; 1394 int actlen; 1395 1396 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1397 #ifdef DIAGNOSTIC 1398 { 1399 int s = splhigh(); 1400 if (ii->isdone) { 1401 splx(s); 1402 #ifdef UHCI_DEBUG 1403 printf("uhci_idone: ii is done!\n "); 1404 uhci_dump_ii(ii); 1405 #else 1406 printf("uhci_idone: ii=%p is done!\n", ii); 1407 #endif 1408 return; 1409 } 1410 ii->isdone = 1; 1411 splx(s); 1412 } 1413 #endif 1414 1415 if (xfer->nframes != 0) { 1416 /* Isoc transfer, do things differently. */ 1417 uhci_soft_td_t **stds = upipe->u.iso.stds; 1418 int i, n, nframes, len; 1419 1420 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1421 1422 nframes = xfer->nframes; 1423 actlen = 0; 1424 n = UXFER(xfer)->curframe; 1425 for (i = 0; i < nframes; i++) { 1426 std = stds[n]; 1427 #ifdef UHCI_DEBUG 1428 if (uhcidebug > 5) { 1429 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1430 uhci_dump_td(std); 1431 } 1432 #endif 1433 if (++n >= UHCI_VFRAMELIST_COUNT) 1434 n = 0; 1435 status = le32toh(std->td.td_status); 1436 len = UHCI_TD_GET_ACTLEN(status); 1437 xfer->frlengths[i] = len; 1438 actlen += len; 1439 } 1440 upipe->u.iso.inuse -= nframes; 1441 xfer->actlen = actlen; 1442 xfer->status = USBD_NORMAL_COMPLETION; 1443 goto end; 1444 } 1445 1446 #ifdef UHCI_DEBUG 1447 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1448 ii, xfer, upipe)); 1449 if (uhcidebug > 10) 1450 uhci_dump_tds(ii->stdstart); 1451 #endif 1452 1453 /* The transfer is done, compute actual length and status. */ 1454 actlen = 0; 1455 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1456 nstatus = le32toh(std->td.td_status); 1457 if (nstatus & UHCI_TD_ACTIVE) 1458 break; 1459 1460 status = nstatus; 1461 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1462 UHCI_TD_PID_SETUP) 1463 actlen += UHCI_TD_GET_ACTLEN(status); 1464 else { 1465 /* 1466 * UHCI will report CRCTO in addition to a STALL or NAK 1467 * for a SETUP transaction. See section 3.2.2, "TD 1468 * CONTROL AND STATUS". 1469 */ 1470 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1471 status &= ~UHCI_TD_CRCTO; 1472 } 1473 } 1474 /* If there are left over TDs we need to update the toggle. */ 1475 if (std != NULL) 1476 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1477 1478 status &= UHCI_TD_ERROR; 1479 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1480 actlen, status)); 1481 xfer->actlen = actlen; 1482 if (status != 0) { 1483 #ifdef UHCI_DEBUG 1484 char sbuf[128]; 1485 1486 bitmask_snprintf((u_int32_t)status, 1487 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1488 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1489 sbuf, sizeof(sbuf)); 1490 1491 DPRINTFN((status == UHCI_TD_STALLED)*10, 1492 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1493 "status 0x%s\n", 1494 xfer->pipe->device->address, 1495 xfer->pipe->endpoint->edesc->bEndpointAddress, 1496 sbuf)); 1497 #endif 1498 1499 if (status == UHCI_TD_STALLED) 1500 xfer->status = USBD_STALLED; 1501 else 1502 xfer->status = USBD_IOERROR; /* more info XXX */ 1503 } else { 1504 xfer->status = USBD_NORMAL_COMPLETION; 1505 } 1506 1507 end: 1508 usb_transfer_complete(xfer); 1509 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1510 } 1511 1512 /* 1513 * Called when a request does not complete. 1514 */ 1515 void 1516 uhci_timeout(void *addr) 1517 { 1518 uhci_intr_info_t *ii = addr; 1519 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1520 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1521 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1522 1523 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1524 1525 if (sc->sc_dying) { 1526 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1527 return; 1528 } 1529 1530 /* Execute the abort in a process context. */ 1531 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1532 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1533 } 1534 1535 void 1536 uhci_timeout_task(void *addr) 1537 { 1538 usbd_xfer_handle xfer = addr; 1539 int s; 1540 1541 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1542 1543 s = splusb(); 1544 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1545 splx(s); 1546 } 1547 1548 /* 1549 * Wait here until controller claims to have an interrupt. 1550 * Then call uhci_intr and return. Use timeout to avoid waiting 1551 * too long. 1552 * Only used during boot when interrupts are not enabled yet. 1553 */ 1554 void 1555 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1556 { 1557 int timo = xfer->timeout; 1558 uhci_intr_info_t *ii; 1559 1560 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1561 1562 xfer->status = USBD_IN_PROGRESS; 1563 for (; timo >= 0; timo--) { 1564 usb_delay_ms(&sc->sc_bus, 1); 1565 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1566 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1567 uhci_intr1(sc); 1568 if (xfer->status != USBD_IN_PROGRESS) 1569 return; 1570 } 1571 } 1572 1573 /* Timeout */ 1574 DPRINTF(("uhci_waitintr: timeout\n")); 1575 for (ii = LIST_FIRST(&sc->sc_intrhead); 1576 ii != NULL && ii->xfer != xfer; 1577 ii = LIST_NEXT(ii, list)) 1578 ; 1579 #ifdef DIAGNOSTIC 1580 if (ii == NULL) 1581 panic("uhci_waitintr: lost intr_info"); 1582 #endif 1583 uhci_idone(ii); 1584 } 1585 1586 void 1587 uhci_poll(struct usbd_bus *bus) 1588 { 1589 uhci_softc_t *sc = (uhci_softc_t *)bus; 1590 1591 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1592 uhci_intr1(sc); 1593 } 1594 1595 void 1596 uhci_reset(uhci_softc_t *sc) 1597 { 1598 int n; 1599 1600 UHCICMD(sc, UHCI_CMD_HCRESET); 1601 /* The reset bit goes low when the controller is done. */ 1602 for (n = 0; n < UHCI_RESET_TIMEOUT && 1603 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1604 usb_delay_ms(&sc->sc_bus, 1); 1605 if (n >= UHCI_RESET_TIMEOUT) 1606 printf("%s: controller did not reset\n", 1607 USBDEVNAME(sc->sc_bus.bdev)); 1608 } 1609 1610 usbd_status 1611 uhci_run(uhci_softc_t *sc, int run) 1612 { 1613 int s, n, running; 1614 u_int16_t cmd; 1615 1616 run = run != 0; 1617 s = splhardusb(); 1618 DPRINTF(("uhci_run: setting run=%d\n", run)); 1619 cmd = UREAD2(sc, UHCI_CMD); 1620 if (run) 1621 cmd |= UHCI_CMD_RS; 1622 else 1623 cmd &= ~UHCI_CMD_RS; 1624 UHCICMD(sc, cmd); 1625 for(n = 0; n < 10; n++) { 1626 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1627 /* return when we've entered the state we want */ 1628 if (run == running) { 1629 splx(s); 1630 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1631 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1632 return (USBD_NORMAL_COMPLETION); 1633 } 1634 usb_delay_ms(&sc->sc_bus, 1); 1635 } 1636 splx(s); 1637 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1638 run ? "start" : "stop"); 1639 return (USBD_IOERROR); 1640 } 1641 1642 /* 1643 * Memory management routines. 1644 * uhci_alloc_std allocates TDs 1645 * uhci_alloc_sqh allocates QHs 1646 * These two routines do their own free list management, 1647 * partly for speed, partly because allocating DMAable memory 1648 * has page size granularaity so much memory would be wasted if 1649 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1650 */ 1651 1652 uhci_soft_td_t * 1653 uhci_alloc_std(uhci_softc_t *sc) 1654 { 1655 uhci_soft_td_t *std; 1656 usbd_status err; 1657 int i, offs; 1658 usb_dma_t dma; 1659 1660 if (sc->sc_freetds == NULL) { 1661 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1662 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1663 UHCI_TD_ALIGN, &dma); 1664 if (err) 1665 return (0); 1666 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1667 offs = i * UHCI_STD_SIZE; 1668 std = KERNADDR(&dma, offs); 1669 std->physaddr = DMAADDR(&dma, offs); 1670 std->link.std = sc->sc_freetds; 1671 sc->sc_freetds = std; 1672 } 1673 } 1674 std = sc->sc_freetds; 1675 sc->sc_freetds = std->link.std; 1676 memset(&std->td, 0, sizeof(uhci_td_t)); 1677 return std; 1678 } 1679 1680 void 1681 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1682 { 1683 #ifdef DIAGNOSTIC 1684 #define TD_IS_FREE 0x12345678 1685 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1686 printf("uhci_free_std: freeing free TD %p\n", std); 1687 return; 1688 } 1689 std->td.td_token = htole32(TD_IS_FREE); 1690 #endif 1691 std->link.std = sc->sc_freetds; 1692 sc->sc_freetds = std; 1693 } 1694 1695 uhci_soft_qh_t * 1696 uhci_alloc_sqh(uhci_softc_t *sc) 1697 { 1698 uhci_soft_qh_t *sqh; 1699 usbd_status err; 1700 int i, offs; 1701 usb_dma_t dma; 1702 1703 if (sc->sc_freeqhs == NULL) { 1704 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1705 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1706 UHCI_QH_ALIGN, &dma); 1707 if (err) 1708 return (0); 1709 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1710 offs = i * UHCI_SQH_SIZE; 1711 sqh = KERNADDR(&dma, offs); 1712 sqh->physaddr = DMAADDR(&dma, offs); 1713 sqh->hlink = sc->sc_freeqhs; 1714 sc->sc_freeqhs = sqh; 1715 } 1716 } 1717 sqh = sc->sc_freeqhs; 1718 sc->sc_freeqhs = sqh->hlink; 1719 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1720 return (sqh); 1721 } 1722 1723 void 1724 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1725 { 1726 sqh->hlink = sc->sc_freeqhs; 1727 sc->sc_freeqhs = sqh; 1728 } 1729 1730 void 1731 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1732 uhci_soft_td_t *stdend) 1733 { 1734 uhci_soft_td_t *p; 1735 1736 for (; std != stdend; std = p) { 1737 p = std->link.std; 1738 uhci_free_std(sc, std); 1739 } 1740 } 1741 1742 usbd_status 1743 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1744 int rd, u_int16_t flags, usb_dma_t *dma, 1745 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1746 { 1747 uhci_soft_td_t *p, *lastp; 1748 uhci_physaddr_t lastlink; 1749 int i, ntd, l, tog, maxp; 1750 u_int32_t status; 1751 int addr = upipe->pipe.device->address; 1752 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1753 1754 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1755 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1756 upipe->pipe.device->speed, flags)); 1757 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1758 if (maxp == 0) { 1759 printf("uhci_alloc_std_chain: maxp=0\n"); 1760 return (USBD_INVAL); 1761 } 1762 ntd = (len + maxp - 1) / maxp; 1763 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1764 ntd++; 1765 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1766 if (ntd == 0) { 1767 *sp = *ep = 0; 1768 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1769 return (USBD_NORMAL_COMPLETION); 1770 } 1771 tog = upipe->nexttoggle; 1772 if (ntd % 2 == 0) 1773 tog ^= 1; 1774 upipe->nexttoggle = tog ^ 1; 1775 lastp = NULL; 1776 lastlink = UHCI_PTR_T; 1777 ntd--; 1778 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1779 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1780 status |= UHCI_TD_LS; 1781 if (flags & USBD_SHORT_XFER_OK) 1782 status |= UHCI_TD_SPD; 1783 for (i = ntd; i >= 0; i--) { 1784 p = uhci_alloc_std(sc); 1785 if (p == NULL) { 1786 uhci_free_std_chain(sc, lastp, NULL); 1787 return (USBD_NOMEM); 1788 } 1789 p->link.std = lastp; 1790 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1791 lastp = p; 1792 lastlink = p->physaddr; 1793 p->td.td_status = htole32(status); 1794 if (i == ntd) { 1795 /* last TD */ 1796 l = len % maxp; 1797 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1798 l = maxp; 1799 *ep = p; 1800 } else 1801 l = maxp; 1802 p->td.td_token = 1803 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1804 UHCI_TD_OUT(l, endpt, addr, tog)); 1805 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1806 tog ^= 1; 1807 } 1808 *sp = lastp; 1809 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1810 upipe->nexttoggle)); 1811 return (USBD_NORMAL_COMPLETION); 1812 } 1813 1814 void 1815 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1816 { 1817 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1818 upipe->nexttoggle = 0; 1819 } 1820 1821 void 1822 uhci_noop(usbd_pipe_handle pipe) 1823 { 1824 } 1825 1826 usbd_status 1827 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1828 { 1829 usbd_status err; 1830 1831 /* Insert last in queue. */ 1832 err = usb_insert_transfer(xfer); 1833 if (err) 1834 return (err); 1835 1836 /* 1837 * Pipe isn't running (otherwise err would be USBD_INPROG), 1838 * so start it first. 1839 */ 1840 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1841 } 1842 1843 usbd_status 1844 uhci_device_bulk_start(usbd_xfer_handle xfer) 1845 { 1846 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1847 usbd_device_handle dev = upipe->pipe.device; 1848 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1849 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1850 uhci_soft_td_t *data, *dataend; 1851 uhci_soft_qh_t *sqh; 1852 usbd_status err; 1853 int len, isread, endpt; 1854 int s; 1855 1856 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1857 xfer, xfer->length, xfer->flags, ii)); 1858 1859 if (sc->sc_dying) 1860 return (USBD_IOERROR); 1861 1862 #ifdef DIAGNOSTIC 1863 if (xfer->rqflags & URQ_REQUEST) 1864 panic("uhci_device_bulk_transfer: a request"); 1865 #endif 1866 1867 len = xfer->length; 1868 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1869 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1870 sqh = upipe->u.bulk.sqh; 1871 1872 upipe->u.bulk.isread = isread; 1873 upipe->u.bulk.length = len; 1874 1875 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1876 &xfer->dmabuf, &data, &dataend); 1877 if (err) 1878 return (err); 1879 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1880 1881 #ifdef UHCI_DEBUG 1882 if (uhcidebug > 8) { 1883 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1884 uhci_dump_tds(data); 1885 } 1886 #endif 1887 1888 /* Set up interrupt info. */ 1889 ii->xfer = xfer; 1890 ii->stdstart = data; 1891 ii->stdend = dataend; 1892 #ifdef DIAGNOSTIC 1893 if (!ii->isdone) { 1894 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1895 } 1896 ii->isdone = 0; 1897 #endif 1898 1899 sqh->elink = data; 1900 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1901 1902 s = splusb(); 1903 uhci_add_bulk(sc, sqh); 1904 uhci_add_intr_info(sc, ii); 1905 1906 if (xfer->timeout && !sc->sc_bus.use_polling) { 1907 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1908 uhci_timeout, ii); 1909 } 1910 xfer->status = USBD_IN_PROGRESS; 1911 splx(s); 1912 1913 #ifdef UHCI_DEBUG 1914 if (uhcidebug > 10) { 1915 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1916 uhci_dump_tds(data); 1917 } 1918 #endif 1919 1920 if (sc->sc_bus.use_polling) 1921 uhci_waitintr(sc, xfer); 1922 1923 return (USBD_IN_PROGRESS); 1924 } 1925 1926 /* Abort a device bulk request. */ 1927 void 1928 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1929 { 1930 DPRINTF(("uhci_device_bulk_abort:\n")); 1931 uhci_abort_xfer(xfer, USBD_CANCELLED); 1932 } 1933 1934 /* 1935 * Abort a device request. 1936 * If this routine is called at splusb() it guarantees that the request 1937 * will be removed from the hardware scheduling and that the callback 1938 * for it will be called with USBD_CANCELLED status. 1939 * It's impossible to guarantee that the requested transfer will not 1940 * have happened since the hardware runs concurrently. 1941 * If the transaction has already happened we rely on the ordinary 1942 * interrupt processing to process it. 1943 */ 1944 void 1945 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1946 { 1947 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1948 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1949 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1950 uhci_soft_td_t *std; 1951 int s; 1952 int wake; 1953 1954 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1955 1956 if (sc->sc_dying) { 1957 /* If we're dying, just do the software part. */ 1958 s = splusb(); 1959 xfer->status = status; /* make software ignore it */ 1960 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1961 usb_transfer_complete(xfer); 1962 splx(s); 1963 return; 1964 } 1965 1966 if (xfer->device->bus->intr_context || !curproc) 1967 panic("uhci_abort_xfer: not in process context"); 1968 1969 /* 1970 * If an abort is already in progress then just wait for it to 1971 * complete and return. 1972 */ 1973 if (xfer->hcflags & UXFER_ABORTING) { 1974 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1975 #ifdef DIAGNOSTIC 1976 if (status == USBD_TIMEOUT) 1977 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 1978 #endif 1979 /* Override the status which might be USBD_TIMEOUT. */ 1980 xfer->status = status; 1981 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 1982 xfer->hcflags |= UXFER_ABORTWAIT; 1983 while (xfer->hcflags & UXFER_ABORTING) 1984 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 1985 return; 1986 } 1987 xfer->hcflags |= UXFER_ABORTING; 1988 1989 /* 1990 * Step 1: Make interrupt routine and hardware ignore xfer. 1991 */ 1992 s = splusb(); 1993 xfer->status = status; /* make software ignore it */ 1994 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1995 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1996 for (std = ii->stdstart; std != NULL; std = std->link.std) 1997 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1998 splx(s); 1999 2000 /* 2001 * Step 2: Wait until we know hardware has finished any possible 2002 * use of the xfer. Also make sure the soft interrupt routine 2003 * has run. 2004 */ 2005 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2006 s = splusb(); 2007 #ifdef USB_USE_SOFTINTR 2008 sc->sc_softwake = 1; 2009 #endif /* USB_USE_SOFTINTR */ 2010 usb_schedsoftintr(&sc->sc_bus); 2011 #ifdef USB_USE_SOFTINTR 2012 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2013 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2014 #endif /* USB_USE_SOFTINTR */ 2015 splx(s); 2016 2017 /* 2018 * Step 3: Execute callback. 2019 */ 2020 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2021 s = splusb(); 2022 #ifdef DIAGNOSTIC 2023 ii->isdone = 1; 2024 #endif 2025 wake = xfer->hcflags & UXFER_ABORTWAIT; 2026 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2027 usb_transfer_complete(xfer); 2028 if (wake) 2029 wakeup(&xfer->hcflags); 2030 splx(s); 2031 } 2032 2033 /* Close a device bulk pipe. */ 2034 void 2035 uhci_device_bulk_close(usbd_pipe_handle pipe) 2036 { 2037 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2038 usbd_device_handle dev = upipe->pipe.device; 2039 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2040 2041 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2042 } 2043 2044 usbd_status 2045 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2046 { 2047 usbd_status err; 2048 2049 /* Insert last in queue. */ 2050 err = usb_insert_transfer(xfer); 2051 if (err) 2052 return (err); 2053 2054 /* 2055 * Pipe isn't running (otherwise err would be USBD_INPROG), 2056 * so start it first. 2057 */ 2058 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2059 } 2060 2061 usbd_status 2062 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2063 { 2064 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2065 usbd_status err; 2066 2067 if (sc->sc_dying) 2068 return (USBD_IOERROR); 2069 2070 #ifdef DIAGNOSTIC 2071 if (!(xfer->rqflags & URQ_REQUEST)) 2072 panic("uhci_device_ctrl_transfer: not a request"); 2073 #endif 2074 2075 err = uhci_device_request(xfer); 2076 if (err) 2077 return (err); 2078 2079 if (sc->sc_bus.use_polling) 2080 uhci_waitintr(sc, xfer); 2081 return (USBD_IN_PROGRESS); 2082 } 2083 2084 usbd_status 2085 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2086 { 2087 usbd_status err; 2088 2089 /* Insert last in queue. */ 2090 err = usb_insert_transfer(xfer); 2091 if (err) 2092 return (err); 2093 2094 /* 2095 * Pipe isn't running (otherwise err would be USBD_INPROG), 2096 * so start it first. 2097 */ 2098 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2099 } 2100 2101 usbd_status 2102 uhci_device_intr_start(usbd_xfer_handle xfer) 2103 { 2104 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2105 usbd_device_handle dev = upipe->pipe.device; 2106 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2107 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2108 uhci_soft_td_t *data, *dataend; 2109 uhci_soft_qh_t *sqh; 2110 usbd_status err; 2111 int isread, endpt; 2112 int i, s; 2113 2114 if (sc->sc_dying) 2115 return (USBD_IOERROR); 2116 2117 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2118 xfer, xfer->length, xfer->flags)); 2119 2120 #ifdef DIAGNOSTIC 2121 if (xfer->rqflags & URQ_REQUEST) 2122 panic("uhci_device_intr_transfer: a request"); 2123 #endif 2124 2125 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2126 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2127 2128 upipe->u.intr.isread = isread; 2129 2130 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2131 xfer->flags, &xfer->dmabuf, &data, 2132 &dataend); 2133 if (err) 2134 return (err); 2135 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2136 2137 #ifdef UHCI_DEBUG 2138 if (uhcidebug > 10) { 2139 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2140 uhci_dump_tds(data); 2141 uhci_dump_qh(upipe->u.intr.qhs[0]); 2142 } 2143 #endif 2144 2145 s = splusb(); 2146 /* Set up interrupt info. */ 2147 ii->xfer = xfer; 2148 ii->stdstart = data; 2149 ii->stdend = dataend; 2150 #ifdef DIAGNOSTIC 2151 if (!ii->isdone) { 2152 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2153 } 2154 ii->isdone = 0; 2155 #endif 2156 2157 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2158 upipe->u.intr.qhs[0])); 2159 for (i = 0; i < upipe->u.intr.npoll; i++) { 2160 sqh = upipe->u.intr.qhs[i]; 2161 sqh->elink = data; 2162 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2163 } 2164 uhci_add_intr_info(sc, ii); 2165 xfer->status = USBD_IN_PROGRESS; 2166 splx(s); 2167 2168 #ifdef UHCI_DEBUG 2169 if (uhcidebug > 10) { 2170 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2171 uhci_dump_tds(data); 2172 uhci_dump_qh(upipe->u.intr.qhs[0]); 2173 } 2174 #endif 2175 2176 return (USBD_IN_PROGRESS); 2177 } 2178 2179 /* Abort a device control request. */ 2180 void 2181 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2182 { 2183 DPRINTF(("uhci_device_ctrl_abort:\n")); 2184 uhci_abort_xfer(xfer, USBD_CANCELLED); 2185 } 2186 2187 /* Close a device control pipe. */ 2188 void 2189 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2190 { 2191 } 2192 2193 /* Abort a device interrupt request. */ 2194 void 2195 uhci_device_intr_abort(usbd_xfer_handle xfer) 2196 { 2197 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2198 if (xfer->pipe->intrxfer == xfer) { 2199 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2200 xfer->pipe->intrxfer = NULL; 2201 } 2202 uhci_abort_xfer(xfer, USBD_CANCELLED); 2203 } 2204 2205 /* Close a device interrupt pipe. */ 2206 void 2207 uhci_device_intr_close(usbd_pipe_handle pipe) 2208 { 2209 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2210 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2211 int i, npoll; 2212 int s; 2213 2214 /* Unlink descriptors from controller data structures. */ 2215 npoll = upipe->u.intr.npoll; 2216 s = splusb(); 2217 for (i = 0; i < npoll; i++) 2218 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2219 splx(s); 2220 2221 /* 2222 * We now have to wait for any activity on the physical 2223 * descriptors to stop. 2224 */ 2225 usb_delay_ms(&sc->sc_bus, 2); 2226 2227 for(i = 0; i < npoll; i++) 2228 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2229 free(upipe->u.intr.qhs, M_USBHC); 2230 2231 /* XXX free other resources */ 2232 } 2233 2234 usbd_status 2235 uhci_device_request(usbd_xfer_handle xfer) 2236 { 2237 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2238 usb_device_request_t *req = &xfer->request; 2239 usbd_device_handle dev = upipe->pipe.device; 2240 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2241 int addr = dev->address; 2242 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2243 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2244 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2245 uhci_soft_qh_t *sqh; 2246 int len; 2247 u_int32_t ls; 2248 usbd_status err; 2249 int isread; 2250 int s; 2251 2252 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2253 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2254 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2255 UGETW(req->wIndex), UGETW(req->wLength), 2256 addr, endpt)); 2257 2258 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2259 isread = req->bmRequestType & UT_READ; 2260 len = UGETW(req->wLength); 2261 2262 setup = upipe->u.ctl.setup; 2263 stat = upipe->u.ctl.stat; 2264 sqh = upipe->u.ctl.sqh; 2265 2266 /* Set up data transaction */ 2267 if (len != 0) { 2268 upipe->nexttoggle = 1; 2269 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2270 &xfer->dmabuf, &data, &dataend); 2271 if (err) 2272 return (err); 2273 next = data; 2274 dataend->link.std = stat; 2275 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2276 } else { 2277 next = stat; 2278 } 2279 upipe->u.ctl.length = len; 2280 2281 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2282 2283 setup->link.std = next; 2284 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2285 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2286 UHCI_TD_ACTIVE); 2287 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2288 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2289 2290 stat->link.std = NULL; 2291 stat->td.td_link = htole32(UHCI_PTR_T); 2292 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2293 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2294 stat->td.td_token = 2295 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2296 UHCI_TD_IN (0, endpt, addr, 1)); 2297 stat->td.td_buffer = htole32(0); 2298 2299 #ifdef UHCI_DEBUG 2300 if (uhcidebug > 10) { 2301 DPRINTF(("uhci_device_request: before transfer\n")); 2302 uhci_dump_tds(setup); 2303 } 2304 #endif 2305 2306 /* Set up interrupt info. */ 2307 ii->xfer = xfer; 2308 ii->stdstart = setup; 2309 ii->stdend = stat; 2310 #ifdef DIAGNOSTIC 2311 if (!ii->isdone) { 2312 printf("uhci_device_request: not done, ii=%p\n", ii); 2313 } 2314 ii->isdone = 0; 2315 #endif 2316 2317 sqh->elink = setup; 2318 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2319 2320 s = splusb(); 2321 if (dev->speed == USB_SPEED_LOW) 2322 uhci_add_ls_ctrl(sc, sqh); 2323 else 2324 uhci_add_hs_ctrl(sc, sqh); 2325 uhci_add_intr_info(sc, ii); 2326 #ifdef UHCI_DEBUG 2327 if (uhcidebug > 12) { 2328 uhci_soft_td_t *std; 2329 uhci_soft_qh_t *xqh; 2330 uhci_soft_qh_t *sxqh; 2331 int maxqh = 0; 2332 uhci_physaddr_t link; 2333 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2334 for (std = sc->sc_vframes[0].htd, link = 0; 2335 (link & UHCI_PTR_QH) == 0; 2336 std = std->link.std) { 2337 link = le32toh(std->td.td_link); 2338 uhci_dump_td(std); 2339 } 2340 sxqh = (uhci_soft_qh_t *)std; 2341 uhci_dump_qh(sxqh); 2342 for (xqh = sxqh; 2343 xqh != NULL; 2344 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2345 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2346 uhci_dump_qh(xqh); 2347 } 2348 DPRINTF(("Enqueued QH:\n")); 2349 uhci_dump_qh(sqh); 2350 uhci_dump_tds(sqh->elink); 2351 } 2352 #endif 2353 if (xfer->timeout && !sc->sc_bus.use_polling) { 2354 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2355 uhci_timeout, ii); 2356 } 2357 xfer->status = USBD_IN_PROGRESS; 2358 splx(s); 2359 2360 return (USBD_NORMAL_COMPLETION); 2361 } 2362 2363 usbd_status 2364 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2365 { 2366 usbd_status err; 2367 2368 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2369 2370 /* Put it on our queue, */ 2371 err = usb_insert_transfer(xfer); 2372 2373 /* bail out on error, */ 2374 if (err && err != USBD_IN_PROGRESS) 2375 return (err); 2376 2377 /* XXX should check inuse here */ 2378 2379 /* insert into schedule, */ 2380 uhci_device_isoc_enter(xfer); 2381 2382 /* and start if the pipe wasn't running */ 2383 if (!err) 2384 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2385 2386 return (err); 2387 } 2388 2389 void 2390 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2391 { 2392 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2393 usbd_device_handle dev = upipe->pipe.device; 2394 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2395 struct iso *iso = &upipe->u.iso; 2396 uhci_soft_td_t *std; 2397 u_int32_t buf, len, status; 2398 int s, i, next, nframes; 2399 2400 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2401 "nframes=%d\n", 2402 iso->inuse, iso->next, xfer, xfer->nframes)); 2403 2404 if (sc->sc_dying) 2405 return; 2406 2407 if (xfer->status == USBD_IN_PROGRESS) { 2408 /* This request has already been entered into the frame list */ 2409 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2410 /* XXX */ 2411 } 2412 2413 #ifdef DIAGNOSTIC 2414 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2415 printf("uhci_device_isoc_enter: overflow!\n"); 2416 #endif 2417 2418 next = iso->next; 2419 if (next == -1) { 2420 /* Not in use yet, schedule it a few frames ahead. */ 2421 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2422 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2423 } 2424 2425 xfer->status = USBD_IN_PROGRESS; 2426 UXFER(xfer)->curframe = next; 2427 2428 buf = DMAADDR(&xfer->dmabuf, 0); 2429 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2430 UHCI_TD_ACTIVE | 2431 UHCI_TD_IOS); 2432 nframes = xfer->nframes; 2433 s = splusb(); 2434 for (i = 0; i < nframes; i++) { 2435 std = iso->stds[next]; 2436 if (++next >= UHCI_VFRAMELIST_COUNT) 2437 next = 0; 2438 len = xfer->frlengths[i]; 2439 std->td.td_buffer = htole32(buf); 2440 if (i == nframes - 1) 2441 status |= UHCI_TD_IOC; 2442 std->td.td_status = htole32(status); 2443 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2444 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2445 #ifdef UHCI_DEBUG 2446 if (uhcidebug > 5) { 2447 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2448 uhci_dump_td(std); 2449 } 2450 #endif 2451 buf += len; 2452 } 2453 iso->next = next; 2454 iso->inuse += xfer->nframes; 2455 2456 splx(s); 2457 } 2458 2459 usbd_status 2460 uhci_device_isoc_start(usbd_xfer_handle xfer) 2461 { 2462 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2463 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2464 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2465 uhci_soft_td_t *end; 2466 int s, i; 2467 2468 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2469 2470 if (sc->sc_dying) 2471 return (USBD_IOERROR); 2472 2473 #ifdef DIAGNOSTIC 2474 if (xfer->status != USBD_IN_PROGRESS) 2475 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2476 #endif 2477 2478 /* Find the last TD */ 2479 i = UXFER(xfer)->curframe + xfer->nframes; 2480 if (i >= UHCI_VFRAMELIST_COUNT) 2481 i -= UHCI_VFRAMELIST_COUNT; 2482 end = upipe->u.iso.stds[i]; 2483 2484 #ifdef DIAGNOSTIC 2485 if (end == NULL) { 2486 printf("uhci_device_isoc_start: end == NULL\n"); 2487 return (USBD_INVAL); 2488 } 2489 #endif 2490 2491 s = splusb(); 2492 2493 /* Set up interrupt info. */ 2494 ii->xfer = xfer; 2495 ii->stdstart = end; 2496 ii->stdend = end; 2497 #ifdef DIAGNOSTIC 2498 if (!ii->isdone) 2499 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2500 ii->isdone = 0; 2501 #endif 2502 uhci_add_intr_info(sc, ii); 2503 2504 splx(s); 2505 2506 return (USBD_IN_PROGRESS); 2507 } 2508 2509 void 2510 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2511 { 2512 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2513 uhci_soft_td_t **stds = upipe->u.iso.stds; 2514 uhci_soft_td_t *std; 2515 int i, n, s, nframes, maxlen, len; 2516 2517 s = splusb(); 2518 2519 /* Transfer is already done. */ 2520 if (xfer->status != USBD_NOT_STARTED && 2521 xfer->status != USBD_IN_PROGRESS) { 2522 splx(s); 2523 return; 2524 } 2525 2526 /* Give xfer the requested abort code. */ 2527 xfer->status = USBD_CANCELLED; 2528 2529 /* make hardware ignore it, */ 2530 nframes = xfer->nframes; 2531 n = UXFER(xfer)->curframe; 2532 maxlen = 0; 2533 for (i = 0; i < nframes; i++) { 2534 std = stds[n]; 2535 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2536 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2537 if (len > maxlen) 2538 maxlen = len; 2539 if (++n >= UHCI_VFRAMELIST_COUNT) 2540 n = 0; 2541 } 2542 2543 /* and wait until we are sure the hardware has finished. */ 2544 delay(maxlen); 2545 2546 #ifdef DIAGNOSTIC 2547 UXFER(xfer)->iinfo.isdone = 1; 2548 #endif 2549 /* Run callback and remove from interrupt list. */ 2550 usb_transfer_complete(xfer); 2551 2552 splx(s); 2553 } 2554 2555 void 2556 uhci_device_isoc_close(usbd_pipe_handle pipe) 2557 { 2558 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2559 usbd_device_handle dev = upipe->pipe.device; 2560 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2561 uhci_soft_td_t *std, *vstd; 2562 struct iso *iso; 2563 int i, s; 2564 2565 /* 2566 * Make sure all TDs are marked as inactive. 2567 * Wait for completion. 2568 * Unschedule. 2569 * Deallocate. 2570 */ 2571 iso = &upipe->u.iso; 2572 2573 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2574 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2575 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2576 2577 s = splusb(); 2578 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2579 std = iso->stds[i]; 2580 for (vstd = sc->sc_vframes[i].htd; 2581 vstd != NULL && vstd->link.std != std; 2582 vstd = vstd->link.std) 2583 ; 2584 if (vstd == NULL) { 2585 /*panic*/ 2586 printf("uhci_device_isoc_close: %p not found\n", std); 2587 splx(s); 2588 return; 2589 } 2590 vstd->link = std->link; 2591 vstd->td.td_link = std->td.td_link; 2592 uhci_free_std(sc, std); 2593 } 2594 splx(s); 2595 2596 free(iso->stds, M_USBHC); 2597 } 2598 2599 usbd_status 2600 uhci_setup_isoc(usbd_pipe_handle pipe) 2601 { 2602 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2603 usbd_device_handle dev = upipe->pipe.device; 2604 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2605 int addr = upipe->pipe.device->address; 2606 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2607 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2608 uhci_soft_td_t *std, *vstd; 2609 u_int32_t token; 2610 struct iso *iso; 2611 int i, s; 2612 2613 iso = &upipe->u.iso; 2614 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2615 M_USBHC, M_WAITOK); 2616 2617 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2618 UHCI_TD_OUT(0, endpt, addr, 0); 2619 2620 /* Allocate the TDs and mark as inactive; */ 2621 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2622 std = uhci_alloc_std(sc); 2623 if (std == 0) 2624 goto bad; 2625 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2626 std->td.td_token = htole32(token); 2627 iso->stds[i] = std; 2628 } 2629 2630 /* Insert TDs into schedule. */ 2631 s = splusb(); 2632 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2633 std = iso->stds[i]; 2634 vstd = sc->sc_vframes[i].htd; 2635 std->link = vstd->link; 2636 std->td.td_link = vstd->td.td_link; 2637 vstd->link.std = std; 2638 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2639 } 2640 splx(s); 2641 2642 iso->next = -1; 2643 iso->inuse = 0; 2644 2645 return (USBD_NORMAL_COMPLETION); 2646 2647 bad: 2648 while (--i >= 0) 2649 uhci_free_std(sc, iso->stds[i]); 2650 free(iso->stds, M_USBHC); 2651 return (USBD_NOMEM); 2652 } 2653 2654 void 2655 uhci_device_isoc_done(usbd_xfer_handle xfer) 2656 { 2657 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2658 2659 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2660 2661 if (ii->xfer != xfer) 2662 /* Not on interrupt list, ignore it. */ 2663 return; 2664 2665 if (!uhci_active_intr_info(ii)) 2666 return; 2667 2668 #ifdef DIAGNOSTIC 2669 if (xfer->busy_free != XFER_BUSY) { 2670 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2671 xfer, xfer->busy_free); 2672 return; 2673 } 2674 2675 if (ii->stdend == NULL) { 2676 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2677 #ifdef UHCI_DEBUG 2678 uhci_dump_ii(ii); 2679 #endif 2680 return; 2681 } 2682 #endif 2683 2684 /* Turn off the interrupt since it is active even if the TD is not. */ 2685 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2686 2687 uhci_del_intr_info(ii); /* remove from active list */ 2688 } 2689 2690 void 2691 uhci_device_intr_done(usbd_xfer_handle xfer) 2692 { 2693 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2694 uhci_softc_t *sc = ii->sc; 2695 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2696 uhci_soft_qh_t *sqh; 2697 int i, npoll; 2698 2699 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2700 2701 npoll = upipe->u.intr.npoll; 2702 for(i = 0; i < npoll; i++) { 2703 sqh = upipe->u.intr.qhs[i]; 2704 sqh->elink = NULL; 2705 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2706 } 2707 uhci_free_std_chain(sc, ii->stdstart, NULL); 2708 2709 /* XXX Wasteful. */ 2710 if (xfer->pipe->repeat) { 2711 uhci_soft_td_t *data, *dataend; 2712 2713 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2714 2715 /* This alloc cannot fail since we freed the chain above. */ 2716 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2717 &xfer->dmabuf, &data, &dataend); 2718 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2719 2720 #ifdef UHCI_DEBUG 2721 if (uhcidebug > 10) { 2722 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2723 uhci_dump_tds(data); 2724 uhci_dump_qh(upipe->u.intr.qhs[0]); 2725 } 2726 #endif 2727 2728 ii->stdstart = data; 2729 ii->stdend = dataend; 2730 #ifdef DIAGNOSTIC 2731 if (!ii->isdone) { 2732 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2733 } 2734 ii->isdone = 0; 2735 #endif 2736 for (i = 0; i < npoll; i++) { 2737 sqh = upipe->u.intr.qhs[i]; 2738 sqh->elink = data; 2739 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2740 } 2741 xfer->status = USBD_IN_PROGRESS; 2742 /* The ii is already on the examined list, just leave it. */ 2743 } else { 2744 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2745 if (uhci_active_intr_info(ii)) 2746 uhci_del_intr_info(ii); 2747 } 2748 } 2749 2750 /* Deallocate request data structures */ 2751 void 2752 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2753 { 2754 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2755 uhci_softc_t *sc = ii->sc; 2756 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2757 2758 #ifdef DIAGNOSTIC 2759 if (!(xfer->rqflags & URQ_REQUEST)) 2760 panic("uhci_device_ctrl_done: not a request"); 2761 #endif 2762 2763 if (!uhci_active_intr_info(ii)) 2764 return; 2765 2766 uhci_del_intr_info(ii); /* remove from active list */ 2767 2768 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2769 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2770 else 2771 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2772 2773 if (upipe->u.ctl.length != 0) 2774 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2775 2776 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2777 } 2778 2779 /* Deallocate request data structures */ 2780 void 2781 uhci_device_bulk_done(usbd_xfer_handle xfer) 2782 { 2783 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2784 uhci_softc_t *sc = ii->sc; 2785 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2786 2787 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2788 xfer, ii, sc, upipe)); 2789 2790 if (!uhci_active_intr_info(ii)) 2791 return; 2792 2793 uhci_del_intr_info(ii); /* remove from active list */ 2794 2795 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2796 2797 uhci_free_std_chain(sc, ii->stdstart, NULL); 2798 2799 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2800 } 2801 2802 /* Add interrupt QH, called with vflock. */ 2803 void 2804 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2805 { 2806 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2807 uhci_soft_qh_t *eqh; 2808 2809 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2810 2811 eqh = vf->eqh; 2812 sqh->hlink = eqh->hlink; 2813 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2814 eqh->hlink = sqh; 2815 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2816 vf->eqh = sqh; 2817 vf->bandwidth++; 2818 } 2819 2820 /* Remove interrupt QH. */ 2821 void 2822 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2823 { 2824 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2825 uhci_soft_qh_t *pqh; 2826 2827 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2828 2829 /* See comment in uhci_remove_ctrl() */ 2830 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2831 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2832 delay(UHCI_QH_REMOVE_DELAY); 2833 } 2834 2835 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2836 pqh->hlink = sqh->hlink; 2837 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2838 delay(UHCI_QH_REMOVE_DELAY); 2839 if (vf->eqh == sqh) 2840 vf->eqh = pqh; 2841 vf->bandwidth--; 2842 } 2843 2844 usbd_status 2845 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2846 { 2847 uhci_soft_qh_t *sqh; 2848 int i, npoll, s; 2849 u_int bestbw, bw, bestoffs, offs; 2850 2851 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2852 if (ival == 0) { 2853 printf("uhci_device_setintr: 0 interval\n"); 2854 return (USBD_INVAL); 2855 } 2856 2857 if (ival > UHCI_VFRAMELIST_COUNT) 2858 ival = UHCI_VFRAMELIST_COUNT; 2859 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2860 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2861 2862 upipe->u.intr.npoll = npoll; 2863 upipe->u.intr.qhs = 2864 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2865 2866 /* 2867 * Figure out which offset in the schedule that has most 2868 * bandwidth left over. 2869 */ 2870 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2871 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2872 for (bw = i = 0; i < npoll; i++) 2873 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2874 if (bw < bestbw) { 2875 bestbw = bw; 2876 bestoffs = offs; 2877 } 2878 } 2879 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2880 2881 for(i = 0; i < npoll; i++) { 2882 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2883 sqh->elink = NULL; 2884 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2885 sqh->pos = MOD(i * ival + bestoffs); 2886 } 2887 #undef MOD 2888 2889 s = splusb(); 2890 /* Enter QHs into the controller data structures. */ 2891 for(i = 0; i < npoll; i++) 2892 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2893 splx(s); 2894 2895 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2896 return (USBD_NORMAL_COMPLETION); 2897 } 2898 2899 /* Open a new pipe. */ 2900 usbd_status 2901 uhci_open(usbd_pipe_handle pipe) 2902 { 2903 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2904 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2905 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2906 usbd_status err; 2907 int ival; 2908 2909 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2910 pipe, pipe->device->address, 2911 ed->bEndpointAddress, sc->sc_addr)); 2912 2913 upipe->aborting = 0; 2914 upipe->nexttoggle = 0; 2915 2916 if (pipe->device->address == sc->sc_addr) { 2917 switch (ed->bEndpointAddress) { 2918 case USB_CONTROL_ENDPOINT: 2919 pipe->methods = &uhci_root_ctrl_methods; 2920 break; 2921 case UE_DIR_IN | UHCI_INTR_ENDPT: 2922 pipe->methods = &uhci_root_intr_methods; 2923 break; 2924 default: 2925 return (USBD_INVAL); 2926 } 2927 } else { 2928 switch (ed->bmAttributes & UE_XFERTYPE) { 2929 case UE_CONTROL: 2930 pipe->methods = &uhci_device_ctrl_methods; 2931 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2932 if (upipe->u.ctl.sqh == NULL) 2933 goto bad; 2934 upipe->u.ctl.setup = uhci_alloc_std(sc); 2935 if (upipe->u.ctl.setup == NULL) { 2936 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2937 goto bad; 2938 } 2939 upipe->u.ctl.stat = uhci_alloc_std(sc); 2940 if (upipe->u.ctl.stat == NULL) { 2941 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2942 uhci_free_std(sc, upipe->u.ctl.setup); 2943 goto bad; 2944 } 2945 err = usb_allocmem(&sc->sc_bus, 2946 sizeof(usb_device_request_t), 2947 0, &upipe->u.ctl.reqdma); 2948 if (err) { 2949 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2950 uhci_free_std(sc, upipe->u.ctl.setup); 2951 uhci_free_std(sc, upipe->u.ctl.stat); 2952 goto bad; 2953 } 2954 break; 2955 case UE_INTERRUPT: 2956 pipe->methods = &uhci_device_intr_methods; 2957 ival = pipe->interval; 2958 if (ival == USBD_DEFAULT_INTERVAL) 2959 ival = ed->bInterval; 2960 return (uhci_device_setintr(sc, upipe, ival)); 2961 case UE_ISOCHRONOUS: 2962 pipe->methods = &uhci_device_isoc_methods; 2963 return (uhci_setup_isoc(pipe)); 2964 case UE_BULK: 2965 pipe->methods = &uhci_device_bulk_methods; 2966 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2967 if (upipe->u.bulk.sqh == NULL) 2968 goto bad; 2969 break; 2970 } 2971 } 2972 return (USBD_NORMAL_COMPLETION); 2973 2974 bad: 2975 return (USBD_NOMEM); 2976 } 2977 2978 /* 2979 * Data structures and routines to emulate the root hub. 2980 */ 2981 usb_device_descriptor_t uhci_devd = { 2982 USB_DEVICE_DESCRIPTOR_SIZE, 2983 UDESC_DEVICE, /* type */ 2984 {0x00, 0x01}, /* USB version */ 2985 UDCLASS_HUB, /* class */ 2986 UDSUBCLASS_HUB, /* subclass */ 2987 UDPROTO_FSHUB, /* protocol */ 2988 64, /* max packet */ 2989 {0},{0},{0x00,0x01}, /* device id */ 2990 1,2,0, /* string indicies */ 2991 1 /* # of configurations */ 2992 }; 2993 2994 usb_config_descriptor_t uhci_confd = { 2995 USB_CONFIG_DESCRIPTOR_SIZE, 2996 UDESC_CONFIG, 2997 {USB_CONFIG_DESCRIPTOR_SIZE + 2998 USB_INTERFACE_DESCRIPTOR_SIZE + 2999 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3000 1, 3001 1, 3002 0, 3003 UC_SELF_POWERED, 3004 0 /* max power */ 3005 }; 3006 3007 usb_interface_descriptor_t uhci_ifcd = { 3008 USB_INTERFACE_DESCRIPTOR_SIZE, 3009 UDESC_INTERFACE, 3010 0, 3011 0, 3012 1, 3013 UICLASS_HUB, 3014 UISUBCLASS_HUB, 3015 UIPROTO_FSHUB, 3016 0 3017 }; 3018 3019 usb_endpoint_descriptor_t uhci_endpd = { 3020 USB_ENDPOINT_DESCRIPTOR_SIZE, 3021 UDESC_ENDPOINT, 3022 UE_DIR_IN | UHCI_INTR_ENDPT, 3023 UE_INTERRUPT, 3024 {8}, 3025 255 3026 }; 3027 3028 usb_hub_descriptor_t uhci_hubd_piix = { 3029 USB_HUB_DESCRIPTOR_SIZE, 3030 UDESC_HUB, 3031 2, 3032 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3033 50, /* power on to power good */ 3034 0, 3035 { 0x00 }, /* both ports are removable */ 3036 }; 3037 3038 int 3039 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3040 { 3041 int i; 3042 3043 if (l == 0) 3044 return (0); 3045 p->bLength = 2 * strlen(s) + 2; 3046 if (l == 1) 3047 return (1); 3048 p->bDescriptorType = UDESC_STRING; 3049 l -= 2; 3050 for (i = 0; s[i] && l > 1; i++, l -= 2) 3051 USETW2(p->bString[i], 0, s[i]); 3052 return (2*i+2); 3053 } 3054 3055 /* 3056 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3057 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3058 * should not be used by the USB subsystem. As we cannot issue a 3059 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3060 * will be enabled as part of the reset. 3061 * 3062 * On the VT83C572, the port cannot be successfully enabled until the 3063 * outstanding "port enable change" and "connection status change" 3064 * events have been reset. 3065 */ 3066 Static usbd_status 3067 uhci_portreset(uhci_softc_t *sc, int index) 3068 { 3069 int lim, port, x; 3070 3071 if (index == 1) 3072 port = UHCI_PORTSC1; 3073 else if (index == 2) 3074 port = UHCI_PORTSC2; 3075 else 3076 return (USBD_IOERROR); 3077 3078 x = URWMASK(UREAD2(sc, port)); 3079 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3080 3081 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3082 3083 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3084 index, UREAD2(sc, port))); 3085 3086 x = URWMASK(UREAD2(sc, port)); 3087 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3088 3089 delay(100); 3090 3091 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3092 index, UREAD2(sc, port))); 3093 3094 x = URWMASK(UREAD2(sc, port)); 3095 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3096 3097 for (lim = 10; --lim > 0;) { 3098 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3099 3100 x = UREAD2(sc, port); 3101 3102 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3103 index, lim, x)); 3104 3105 if (!(x & UHCI_PORTSC_CCS)) { 3106 /* 3107 * No device is connected (or was disconnected 3108 * during reset). Consider the port reset. 3109 * The delay must be long enough to ensure on 3110 * the initial iteration that the device 3111 * connection will have been registered. 50ms 3112 * appears to be sufficient, but 20ms is not. 3113 */ 3114 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3115 index, lim)); 3116 break; 3117 } 3118 3119 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3120 /* 3121 * Port enabled changed and/or connection 3122 * status changed were set. Reset either or 3123 * both raised flags (by writing a 1 to that 3124 * bit), and wait again for state to settle. 3125 */ 3126 UWRITE2(sc, port, URWMASK(x) | 3127 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3128 continue; 3129 } 3130 3131 if (x & UHCI_PORTSC_PE) 3132 /* Port is enabled */ 3133 break; 3134 3135 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3136 } 3137 3138 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3139 index, UREAD2(sc, port))); 3140 3141 if (lim <= 0) { 3142 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3143 return (USBD_TIMEOUT); 3144 } 3145 3146 sc->sc_isreset = 1; 3147 return (USBD_NORMAL_COMPLETION); 3148 } 3149 3150 /* 3151 * Simulate a hardware hub by handling all the necessary requests. 3152 */ 3153 usbd_status 3154 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3155 { 3156 usbd_status err; 3157 3158 /* Insert last in queue. */ 3159 err = usb_insert_transfer(xfer); 3160 if (err) 3161 return (err); 3162 3163 /* 3164 * Pipe isn't running (otherwise err would be USBD_INPROG), 3165 * so start it first. 3166 */ 3167 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3168 } 3169 3170 usbd_status 3171 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3172 { 3173 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3174 usb_device_request_t *req; 3175 void *buf = NULL; 3176 int port, x; 3177 int s, len, value, index, status, change, l, totlen = 0; 3178 usb_port_status_t ps; 3179 usbd_status err; 3180 3181 if (sc->sc_dying) 3182 return (USBD_IOERROR); 3183 3184 #ifdef DIAGNOSTIC 3185 if (!(xfer->rqflags & URQ_REQUEST)) 3186 panic("uhci_root_ctrl_transfer: not a request"); 3187 #endif 3188 req = &xfer->request; 3189 3190 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3191 req->bmRequestType, req->bRequest)); 3192 3193 len = UGETW(req->wLength); 3194 value = UGETW(req->wValue); 3195 index = UGETW(req->wIndex); 3196 3197 if (len != 0) 3198 buf = KERNADDR(&xfer->dmabuf, 0); 3199 3200 #define C(x,y) ((x) | ((y) << 8)) 3201 switch(C(req->bRequest, req->bmRequestType)) { 3202 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3203 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3204 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3205 /* 3206 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3207 * for the integrated root hub. 3208 */ 3209 break; 3210 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3211 if (len > 0) { 3212 *(u_int8_t *)buf = sc->sc_conf; 3213 totlen = 1; 3214 } 3215 break; 3216 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3217 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3218 if (len == 0) 3219 break; 3220 switch(value >> 8) { 3221 case UDESC_DEVICE: 3222 if ((value & 0xff) != 0) { 3223 err = USBD_IOERROR; 3224 goto ret; 3225 } 3226 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3227 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3228 memcpy(buf, &uhci_devd, l); 3229 break; 3230 case UDESC_CONFIG: 3231 if ((value & 0xff) != 0) { 3232 err = USBD_IOERROR; 3233 goto ret; 3234 } 3235 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3236 memcpy(buf, &uhci_confd, l); 3237 buf = (char *)buf + l; 3238 len -= l; 3239 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3240 totlen += l; 3241 memcpy(buf, &uhci_ifcd, l); 3242 buf = (char *)buf + l; 3243 len -= l; 3244 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3245 totlen += l; 3246 memcpy(buf, &uhci_endpd, l); 3247 break; 3248 case UDESC_STRING: 3249 *(u_int8_t *)buf = 0; 3250 totlen = 1; 3251 switch (value & 0xff) { 3252 case 0: /* Language table */ 3253 totlen = uhci_str(buf, len, "\001"); 3254 break; 3255 case 1: /* Vendor */ 3256 totlen = uhci_str(buf, len, sc->sc_vendor); 3257 break; 3258 case 2: /* Product */ 3259 totlen = uhci_str(buf, len, "UHCI root hub"); 3260 break; 3261 } 3262 break; 3263 default: 3264 err = USBD_IOERROR; 3265 goto ret; 3266 } 3267 break; 3268 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3269 if (len > 0) { 3270 *(u_int8_t *)buf = 0; 3271 totlen = 1; 3272 } 3273 break; 3274 case C(UR_GET_STATUS, UT_READ_DEVICE): 3275 if (len > 1) { 3276 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3277 totlen = 2; 3278 } 3279 break; 3280 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3281 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3282 if (len > 1) { 3283 USETW(((usb_status_t *)buf)->wStatus, 0); 3284 totlen = 2; 3285 } 3286 break; 3287 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3288 if (value >= USB_MAX_DEVICES) { 3289 err = USBD_IOERROR; 3290 goto ret; 3291 } 3292 sc->sc_addr = value; 3293 break; 3294 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3295 if (value != 0 && value != 1) { 3296 err = USBD_IOERROR; 3297 goto ret; 3298 } 3299 sc->sc_conf = value; 3300 break; 3301 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3302 break; 3303 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3304 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3305 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3306 err = USBD_IOERROR; 3307 goto ret; 3308 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3309 break; 3310 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3311 break; 3312 /* Hub requests */ 3313 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3314 break; 3315 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3316 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3317 "port=%d feature=%d\n", 3318 index, value)); 3319 if (index == 1) 3320 port = UHCI_PORTSC1; 3321 else if (index == 2) 3322 port = UHCI_PORTSC2; 3323 else { 3324 err = USBD_IOERROR; 3325 goto ret; 3326 } 3327 switch(value) { 3328 case UHF_PORT_ENABLE: 3329 x = URWMASK(UREAD2(sc, port)); 3330 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3331 break; 3332 case UHF_PORT_SUSPEND: 3333 x = URWMASK(UREAD2(sc, port)); 3334 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3335 break; 3336 case UHF_PORT_RESET: 3337 x = URWMASK(UREAD2(sc, port)); 3338 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3339 break; 3340 case UHF_C_PORT_CONNECTION: 3341 x = URWMASK(UREAD2(sc, port)); 3342 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3343 break; 3344 case UHF_C_PORT_ENABLE: 3345 x = URWMASK(UREAD2(sc, port)); 3346 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3347 break; 3348 case UHF_C_PORT_OVER_CURRENT: 3349 x = URWMASK(UREAD2(sc, port)); 3350 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3351 break; 3352 case UHF_C_PORT_RESET: 3353 sc->sc_isreset = 0; 3354 err = USBD_NORMAL_COMPLETION; 3355 goto ret; 3356 case UHF_PORT_CONNECTION: 3357 case UHF_PORT_OVER_CURRENT: 3358 case UHF_PORT_POWER: 3359 case UHF_PORT_LOW_SPEED: 3360 case UHF_C_PORT_SUSPEND: 3361 default: 3362 err = USBD_IOERROR; 3363 goto ret; 3364 } 3365 break; 3366 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3367 if (index == 1) 3368 port = UHCI_PORTSC1; 3369 else if (index == 2) 3370 port = UHCI_PORTSC2; 3371 else { 3372 err = USBD_IOERROR; 3373 goto ret; 3374 } 3375 if (len > 0) { 3376 *(u_int8_t *)buf = 3377 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3378 UHCI_PORTSC_LS_SHIFT; 3379 totlen = 1; 3380 } 3381 break; 3382 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3383 if (len == 0) 3384 break; 3385 if ((value & 0xff) != 0) { 3386 err = USBD_IOERROR; 3387 goto ret; 3388 } 3389 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3390 totlen = l; 3391 memcpy(buf, &uhci_hubd_piix, l); 3392 break; 3393 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3394 if (len != 4) { 3395 err = USBD_IOERROR; 3396 goto ret; 3397 } 3398 memset(buf, 0, len); 3399 totlen = len; 3400 break; 3401 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3402 if (index == 1) 3403 port = UHCI_PORTSC1; 3404 else if (index == 2) 3405 port = UHCI_PORTSC2; 3406 else { 3407 err = USBD_IOERROR; 3408 goto ret; 3409 } 3410 if (len != 4) { 3411 err = USBD_IOERROR; 3412 goto ret; 3413 } 3414 x = UREAD2(sc, port); 3415 status = change = 0; 3416 if (x & UHCI_PORTSC_CCS) 3417 status |= UPS_CURRENT_CONNECT_STATUS; 3418 if (x & UHCI_PORTSC_CSC) 3419 change |= UPS_C_CONNECT_STATUS; 3420 if (x & UHCI_PORTSC_PE) 3421 status |= UPS_PORT_ENABLED; 3422 if (x & UHCI_PORTSC_POEDC) 3423 change |= UPS_C_PORT_ENABLED; 3424 if (x & UHCI_PORTSC_OCI) 3425 status |= UPS_OVERCURRENT_INDICATOR; 3426 if (x & UHCI_PORTSC_OCIC) 3427 change |= UPS_C_OVERCURRENT_INDICATOR; 3428 if (x & UHCI_PORTSC_SUSP) 3429 status |= UPS_SUSPEND; 3430 if (x & UHCI_PORTSC_LSDA) 3431 status |= UPS_LOW_SPEED; 3432 status |= UPS_PORT_POWER; 3433 if (sc->sc_isreset) 3434 change |= UPS_C_PORT_RESET; 3435 USETW(ps.wPortStatus, status); 3436 USETW(ps.wPortChange, change); 3437 l = min(len, sizeof ps); 3438 memcpy(buf, &ps, l); 3439 totlen = l; 3440 break; 3441 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3442 err = USBD_IOERROR; 3443 goto ret; 3444 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3445 break; 3446 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3447 if (index == 1) 3448 port = UHCI_PORTSC1; 3449 else if (index == 2) 3450 port = UHCI_PORTSC2; 3451 else { 3452 err = USBD_IOERROR; 3453 goto ret; 3454 } 3455 switch(value) { 3456 case UHF_PORT_ENABLE: 3457 x = URWMASK(UREAD2(sc, port)); 3458 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3459 break; 3460 case UHF_PORT_SUSPEND: 3461 x = URWMASK(UREAD2(sc, port)); 3462 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3463 break; 3464 case UHF_PORT_RESET: 3465 err = uhci_portreset(sc, index); 3466 goto ret; 3467 case UHF_PORT_POWER: 3468 /* Pretend we turned on power */ 3469 err = USBD_NORMAL_COMPLETION; 3470 goto ret; 3471 case UHF_C_PORT_CONNECTION: 3472 case UHF_C_PORT_ENABLE: 3473 case UHF_C_PORT_OVER_CURRENT: 3474 case UHF_PORT_CONNECTION: 3475 case UHF_PORT_OVER_CURRENT: 3476 case UHF_PORT_LOW_SPEED: 3477 case UHF_C_PORT_SUSPEND: 3478 case UHF_C_PORT_RESET: 3479 default: 3480 err = USBD_IOERROR; 3481 goto ret; 3482 } 3483 break; 3484 default: 3485 err = USBD_IOERROR; 3486 goto ret; 3487 } 3488 xfer->actlen = totlen; 3489 err = USBD_NORMAL_COMPLETION; 3490 ret: 3491 xfer->status = err; 3492 s = splusb(); 3493 usb_transfer_complete(xfer); 3494 splx(s); 3495 return (USBD_IN_PROGRESS); 3496 } 3497 3498 /* Abort a root control request. */ 3499 void 3500 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3501 { 3502 /* Nothing to do, all transfers are synchronous. */ 3503 } 3504 3505 /* Close the root pipe. */ 3506 void 3507 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3508 { 3509 DPRINTF(("uhci_root_ctrl_close\n")); 3510 } 3511 3512 /* Abort a root interrupt request. */ 3513 void 3514 uhci_root_intr_abort(usbd_xfer_handle xfer) 3515 { 3516 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3517 3518 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3519 sc->sc_intr_xfer = NULL; 3520 3521 if (xfer->pipe->intrxfer == xfer) { 3522 DPRINTF(("uhci_root_intr_abort: remove\n")); 3523 xfer->pipe->intrxfer = 0; 3524 } 3525 xfer->status = USBD_CANCELLED; 3526 #ifdef DIAGNOSTIC 3527 UXFER(xfer)->iinfo.isdone = 1; 3528 #endif 3529 usb_transfer_complete(xfer); 3530 } 3531 3532 usbd_status 3533 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3534 { 3535 usbd_status err; 3536 3537 /* Insert last in queue. */ 3538 err = usb_insert_transfer(xfer); 3539 if (err) 3540 return (err); 3541 3542 /* 3543 * Pipe isn't running (otherwise err would be USBD_INPROG), 3544 * start first 3545 */ 3546 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3547 } 3548 3549 /* Start a transfer on the root interrupt pipe */ 3550 usbd_status 3551 uhci_root_intr_start(usbd_xfer_handle xfer) 3552 { 3553 usbd_pipe_handle pipe = xfer->pipe; 3554 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3555 unsigned int ival; 3556 3557 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3558 xfer, xfer->length, xfer->flags)); 3559 3560 if (sc->sc_dying) 3561 return (USBD_IOERROR); 3562 3563 /* XXX temporary variable needed to avoid gcc3 warning */ 3564 ival = xfer->pipe->endpoint->edesc->bInterval; 3565 sc->sc_ival = mstohz(ival); 3566 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3567 sc->sc_intr_xfer = xfer; 3568 return (USBD_IN_PROGRESS); 3569 } 3570 3571 /* Close the root interrupt pipe. */ 3572 void 3573 uhci_root_intr_close(usbd_pipe_handle pipe) 3574 { 3575 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3576 3577 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3578 sc->sc_intr_xfer = NULL; 3579 DPRINTF(("uhci_root_intr_close\n")); 3580 } 3581
Indexes created Tue Sep 23 14:10:03 GMT 2025