uhci.c revision 1.279.2.3
1 /* $NetBSD: uhci.c,v 1.279.2.3 2018/09/30 01:45:51 pgoyette Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2004, 2011, 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net) at 9 * Carlstedt Research & Technology, Jared D. McNeill (jmcneill (at) invisible.ca) 10 * and Matthew R. Green (mrg (at) eterna.com.au). 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * USB Universal Host Controller driver. 36 * Handles e.g. PIIX3 and PIIX4. 37 * 38 * UHCI spec: http://www.intel.com/technology/usb/spec.htm 39 * USB spec: http://www.usb.org/developers/docs/ 40 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 41 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.279.2.3 2018/09/30 01:45:51 pgoyette Exp $"); 46 47 #ifdef _KERNEL_OPT 48 #include "opt_usb.h" 49 #endif 50 51 #include <sys/param.h> 52 53 #include <sys/bus.h> 54 #include <sys/cpu.h> 55 #include <sys/device.h> 56 #include <sys/kernel.h> 57 #include <sys/kmem.h> 58 #include <sys/mutex.h> 59 #include <sys/proc.h> 60 #include <sys/queue.h> 61 #include <sys/select.h> 62 #include <sys/sysctl.h> 63 #include <sys/systm.h> 64 65 #include <machine/endian.h> 66 67 #include <dev/usb/usb.h> 68 #include <dev/usb/usbdi.h> 69 #include <dev/usb/usbdivar.h> 70 #include <dev/usb/usb_mem.h> 71 72 #include <dev/usb/uhcireg.h> 73 #include <dev/usb/uhcivar.h> 74 #include <dev/usb/usbroothub.h> 75 #include <dev/usb/usbhist.h> 76 77 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 78 /*#define UHCI_CTL_LOOP */ 79 80 #ifdef UHCI_DEBUG 81 uhci_softc_t *thesc; 82 int uhcinoloop = 0; 83 #endif 84 85 #ifdef USB_DEBUG 86 #ifndef UHCI_DEBUG 87 #define uhcidebug 0 88 #else 89 static int uhcidebug = 0; 90 91 SYSCTL_SETUP(sysctl_hw_uhci_setup, "sysctl hw.uhci setup") 92 { 93 int err; 94 const struct sysctlnode *rnode; 95 const struct sysctlnode *cnode; 96 97 err = sysctl_createv(clog, 0, NULL, &rnode, 98 CTLFLAG_PERMANENT, CTLTYPE_NODE, "uhci", 99 SYSCTL_DESCR("uhci global controls"), 100 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 101 102 if (err) 103 goto fail; 104 105 /* control debugging printfs */ 106 err = sysctl_createv(clog, 0, &rnode, &cnode, 107 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 108 "debug", SYSCTL_DESCR("Enable debugging output"), 109 NULL, 0, &uhcidebug, sizeof(uhcidebug), CTL_CREATE, CTL_EOL); 110 if (err) 111 goto fail; 112 113 return; 114 fail: 115 aprint_error("%s: sysctl_createv failed (err = %d)\n", __func__, err); 116 } 117 118 #endif /* UHCI_DEBUG */ 119 #endif /* USB_DEBUG */ 120 121 #define DPRINTF(FMT,A,B,C,D) USBHIST_LOGN(uhcidebug,1,FMT,A,B,C,D) 122 #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(uhcidebug,N,FMT,A,B,C,D) 123 #define UHCIHIST_FUNC() USBHIST_FUNC() 124 #define UHCIHIST_CALLED(name) USBHIST_CALLED(uhcidebug) 125 126 /* 127 * The UHCI controller is little endian, so on big endian machines 128 * the data stored in memory needs to be swapped. 129 */ 130 131 struct uhci_pipe { 132 struct usbd_pipe pipe; 133 int nexttoggle; 134 135 u_char aborting; 136 struct usbd_xfer *abortstart, abortend; 137 138 /* Info needed for different pipe kinds. */ 139 union { 140 /* Control pipe */ 141 struct { 142 uhci_soft_qh_t *sqh; 143 usb_dma_t reqdma; 144 uhci_soft_td_t *setup; 145 uhci_soft_td_t *stat; 146 } ctrl; 147 /* Interrupt pipe */ 148 struct { 149 int npoll; 150 uhci_soft_qh_t **qhs; 151 } intr; 152 /* Bulk pipe */ 153 struct { 154 uhci_soft_qh_t *sqh; 155 } bulk; 156 /* Isochronous pipe */ 157 struct isoc { 158 uhci_soft_td_t **stds; 159 int next, inuse; 160 } isoc; 161 }; 162 }; 163 164 typedef TAILQ_HEAD(ux_completeq, uhci_xfer) ux_completeq_t; 165 166 Static void uhci_globalreset(uhci_softc_t *); 167 Static usbd_status uhci_portreset(uhci_softc_t*, int); 168 Static void uhci_reset(uhci_softc_t *); 169 Static usbd_status uhci_run(uhci_softc_t *, int, int); 170 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 171 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 172 Static void uhci_free_std_locked(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 #if 0 182 Static void uhci_free_std_chain(uhci_softc_t *, uhci_soft_td_t *, 183 uhci_soft_td_t *); 184 #endif 185 Static int uhci_alloc_std_chain(uhci_softc_t *, struct usbd_xfer *, 186 int, int, uhci_soft_td_t **); 187 Static void uhci_free_stds(uhci_softc_t *, struct uhci_xfer *); 188 189 Static void uhci_reset_std_chain(uhci_softc_t *, struct usbd_xfer *, 190 int, int, int *, uhci_soft_td_t **); 191 192 Static void uhci_poll_hub(void *); 193 Static void uhci_check_intr(uhci_softc_t *, struct uhci_xfer *, 194 ux_completeq_t *); 195 Static void uhci_idone(struct uhci_xfer *, ux_completeq_t *); 196 197 Static void uhci_abort_xfer(struct usbd_xfer *, usbd_status); 198 199 Static void uhci_timeout(void *); 200 Static void uhci_timeout_task(void *); 201 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 202 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 203 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 204 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 205 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 206 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 207 Static void uhci_add_loop(uhci_softc_t *); 208 Static void uhci_rem_loop(uhci_softc_t *); 209 210 Static usbd_status uhci_setup_isoc(struct usbd_pipe *); 211 212 Static struct usbd_xfer * 213 uhci_allocx(struct usbd_bus *, unsigned int); 214 Static void uhci_freex(struct usbd_bus *, struct usbd_xfer *); 215 Static void uhci_get_lock(struct usbd_bus *, kmutex_t **); 216 Static int uhci_roothub_ctrl(struct usbd_bus *, 217 usb_device_request_t *, void *, int); 218 219 Static int uhci_device_ctrl_init(struct usbd_xfer *); 220 Static void uhci_device_ctrl_fini(struct usbd_xfer *); 221 Static usbd_status uhci_device_ctrl_transfer(struct usbd_xfer *); 222 Static usbd_status uhci_device_ctrl_start(struct usbd_xfer *); 223 Static void uhci_device_ctrl_abort(struct usbd_xfer *); 224 Static void uhci_device_ctrl_close(struct usbd_pipe *); 225 Static void uhci_device_ctrl_done(struct usbd_xfer *); 226 227 Static int uhci_device_intr_init(struct usbd_xfer *); 228 Static void uhci_device_intr_fini(struct usbd_xfer *); 229 Static usbd_status uhci_device_intr_transfer(struct usbd_xfer *); 230 Static usbd_status uhci_device_intr_start(struct usbd_xfer *); 231 Static void uhci_device_intr_abort(struct usbd_xfer *); 232 Static void uhci_device_intr_close(struct usbd_pipe *); 233 Static void uhci_device_intr_done(struct usbd_xfer *); 234 235 Static int uhci_device_bulk_init(struct usbd_xfer *); 236 Static void uhci_device_bulk_fini(struct usbd_xfer *); 237 Static usbd_status uhci_device_bulk_transfer(struct usbd_xfer *); 238 Static usbd_status uhci_device_bulk_start(struct usbd_xfer *); 239 Static void uhci_device_bulk_abort(struct usbd_xfer *); 240 Static void uhci_device_bulk_close(struct usbd_pipe *); 241 Static void uhci_device_bulk_done(struct usbd_xfer *); 242 243 Static int uhci_device_isoc_init(struct usbd_xfer *); 244 Static void uhci_device_isoc_fini(struct usbd_xfer *); 245 Static usbd_status uhci_device_isoc_transfer(struct usbd_xfer *); 246 Static void uhci_device_isoc_abort(struct usbd_xfer *); 247 Static void uhci_device_isoc_close(struct usbd_pipe *); 248 Static void uhci_device_isoc_done(struct usbd_xfer *); 249 250 Static usbd_status uhci_root_intr_transfer(struct usbd_xfer *); 251 Static usbd_status uhci_root_intr_start(struct usbd_xfer *); 252 Static void uhci_root_intr_abort(struct usbd_xfer *); 253 Static void uhci_root_intr_close(struct usbd_pipe *); 254 Static void uhci_root_intr_done(struct usbd_xfer *); 255 256 Static usbd_status uhci_open(struct usbd_pipe *); 257 Static void uhci_poll(struct usbd_bus *); 258 Static void uhci_softintr(void *); 259 260 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 261 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 262 Static usbd_status uhci_device_setintr(uhci_softc_t *, 263 struct uhci_pipe *, int); 264 265 Static void uhci_device_clear_toggle(struct usbd_pipe *); 266 Static void uhci_noop(struct usbd_pipe *); 267 268 static inline uhci_soft_qh_t * 269 uhci_find_prev_qh(uhci_soft_qh_t *, uhci_soft_qh_t *); 270 271 #ifdef UHCI_DEBUG 272 Static void uhci_dump_all(uhci_softc_t *); 273 Static void uhci_dumpregs(uhci_softc_t *); 274 Static void uhci_dump_qhs(uhci_soft_qh_t *); 275 Static void uhci_dump_qh(uhci_soft_qh_t *); 276 Static void uhci_dump_tds(uhci_soft_td_t *); 277 Static void uhci_dump_td(uhci_soft_td_t *); 278 Static void uhci_dump_ii(struct uhci_xfer *); 279 void uhci_dump(void); 280 #endif 281 282 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 283 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 284 #define UWRITE1(sc, r, x) \ 285 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 286 } while (/*CONSTCOND*/0) 287 #define UWRITE2(sc, r, x) \ 288 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 289 } while (/*CONSTCOND*/0) 290 #define UWRITE4(sc, r, x) \ 291 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 292 } while (/*CONSTCOND*/0) 293 294 static __inline uint8_t 295 UREAD1(uhci_softc_t *sc, bus_size_t r) 296 { 297 298 UBARR(sc); 299 return bus_space_read_1(sc->iot, sc->ioh, r); 300 } 301 302 static __inline uint16_t 303 UREAD2(uhci_softc_t *sc, bus_size_t r) 304 { 305 306 UBARR(sc); 307 return bus_space_read_2(sc->iot, sc->ioh, r); 308 } 309 310 #ifdef UHCI_DEBUG 311 static __inline uint32_t 312 UREAD4(uhci_softc_t *sc, bus_size_t r) 313 { 314 315 UBARR(sc); 316 return bus_space_read_4(sc->iot, sc->ioh, r); 317 } 318 #endif 319 320 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 321 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 322 323 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 324 325 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 326 327 const struct usbd_bus_methods uhci_bus_methods = { 328 .ubm_open = uhci_open, 329 .ubm_softint = uhci_softintr, 330 .ubm_dopoll = uhci_poll, 331 .ubm_allocx = uhci_allocx, 332 .ubm_freex = uhci_freex, 333 .ubm_getlock = uhci_get_lock, 334 .ubm_rhctrl = uhci_roothub_ctrl, 335 }; 336 337 const struct usbd_pipe_methods uhci_root_intr_methods = { 338 .upm_transfer = uhci_root_intr_transfer, 339 .upm_start = uhci_root_intr_start, 340 .upm_abort = uhci_root_intr_abort, 341 .upm_close = uhci_root_intr_close, 342 .upm_cleartoggle = uhci_noop, 343 .upm_done = uhci_root_intr_done, 344 }; 345 346 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 347 .upm_init = uhci_device_ctrl_init, 348 .upm_fini = uhci_device_ctrl_fini, 349 .upm_transfer = uhci_device_ctrl_transfer, 350 .upm_start = uhci_device_ctrl_start, 351 .upm_abort = uhci_device_ctrl_abort, 352 .upm_close = uhci_device_ctrl_close, 353 .upm_cleartoggle = uhci_noop, 354 .upm_done = uhci_device_ctrl_done, 355 }; 356 357 const struct usbd_pipe_methods uhci_device_intr_methods = { 358 .upm_init = uhci_device_intr_init, 359 .upm_fini = uhci_device_intr_fini, 360 .upm_transfer = uhci_device_intr_transfer, 361 .upm_start = uhci_device_intr_start, 362 .upm_abort = uhci_device_intr_abort, 363 .upm_close = uhci_device_intr_close, 364 .upm_cleartoggle = uhci_device_clear_toggle, 365 .upm_done = uhci_device_intr_done, 366 }; 367 368 const struct usbd_pipe_methods uhci_device_bulk_methods = { 369 .upm_init = uhci_device_bulk_init, 370 .upm_fini = uhci_device_bulk_fini, 371 .upm_transfer = uhci_device_bulk_transfer, 372 .upm_start = uhci_device_bulk_start, 373 .upm_abort = uhci_device_bulk_abort, 374 .upm_close = uhci_device_bulk_close, 375 .upm_cleartoggle = uhci_device_clear_toggle, 376 .upm_done = uhci_device_bulk_done, 377 }; 378 379 const struct usbd_pipe_methods uhci_device_isoc_methods = { 380 .upm_init = uhci_device_isoc_init, 381 .upm_fini = uhci_device_isoc_fini, 382 .upm_transfer = uhci_device_isoc_transfer, 383 .upm_abort = uhci_device_isoc_abort, 384 .upm_close = uhci_device_isoc_close, 385 .upm_cleartoggle = uhci_noop, 386 .upm_done = uhci_device_isoc_done, 387 }; 388 389 static inline void 390 uhci_add_intr_list(uhci_softc_t *sc, struct uhci_xfer *ux) 391 { 392 393 TAILQ_INSERT_TAIL(&sc->sc_intrhead, ux, ux_list); 394 } 395 396 static inline void 397 uhci_del_intr_list(uhci_softc_t *sc, struct uhci_xfer *ux) 398 { 399 400 TAILQ_REMOVE(&sc->sc_intrhead, ux, ux_list); 401 } 402 403 static inline uhci_soft_qh_t * 404 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 405 { 406 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 407 DPRINTFN(15, "pqh=%#jx sqh=%#jx", (uintptr_t)pqh, (uintptr_t)sqh, 0, 0); 408 409 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 410 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 411 usb_syncmem(&pqh->dma, 412 pqh->offs + offsetof(uhci_qh_t, qh_hlink), 413 sizeof(pqh->qh.qh_hlink), 414 BUS_DMASYNC_POSTWRITE); 415 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 416 printf("%s: QH not found\n", __func__); 417 return NULL; 418 } 419 #endif 420 } 421 return pqh; 422 } 423 424 void 425 uhci_globalreset(uhci_softc_t *sc) 426 { 427 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 428 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 429 UHCICMD(sc, 0); /* do nothing */ 430 } 431 432 int 433 uhci_init(uhci_softc_t *sc) 434 { 435 usbd_status err; 436 int i, j; 437 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 438 uhci_soft_td_t *std; 439 440 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 441 442 #ifdef UHCI_DEBUG 443 thesc = sc; 444 445 if (uhcidebug >= 2) 446 uhci_dumpregs(sc); 447 #endif 448 449 sc->sc_suspend = PWR_RESUME; 450 451 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 452 uhci_globalreset(sc); /* reset the controller */ 453 uhci_reset(sc); 454 455 /* Allocate and initialize real frame array. */ 456 err = usb_allocmem(&sc->sc_bus, 457 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 458 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 459 if (err) 460 return err; 461 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 462 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 463 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 464 465 /* Initialise mutex early for uhci_alloc_* */ 466 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 467 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_USB); 468 469 /* 470 * Allocate a TD, inactive, that hangs from the last QH. 471 * This is to avoid a bug in the PIIX that makes it run berserk 472 * otherwise. 473 */ 474 std = uhci_alloc_std(sc); 475 if (std == NULL) 476 return ENOMEM; 477 std->link.std = NULL; 478 std->td.td_link = htole32(UHCI_PTR_T); 479 std->td.td_status = htole32(0); /* inactive */ 480 std->td.td_token = htole32(0); 481 std->td.td_buffer = htole32(0); 482 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 483 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 484 485 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 486 lsqh = uhci_alloc_sqh(sc); 487 if (lsqh == NULL) 488 goto fail1; 489 lsqh->hlink = NULL; 490 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 491 lsqh->elink = std; 492 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 493 sc->sc_last_qh = lsqh; 494 usb_syncmem(&lsqh->dma, lsqh->offs, sizeof(lsqh->qh), 495 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 496 497 /* Allocate the dummy QH where bulk traffic will be queued. */ 498 bsqh = uhci_alloc_sqh(sc); 499 if (bsqh == NULL) 500 goto fail2; 501 bsqh->hlink = lsqh; 502 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 503 bsqh->elink = NULL; 504 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 505 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 506 usb_syncmem(&bsqh->dma, bsqh->offs, sizeof(bsqh->qh), 507 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 508 509 /* Allocate dummy QH where high speed control traffic will be queued. */ 510 chsqh = uhci_alloc_sqh(sc); 511 if (chsqh == NULL) 512 goto fail3; 513 chsqh->hlink = bsqh; 514 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 515 chsqh->elink = NULL; 516 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 517 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 518 usb_syncmem(&chsqh->dma, chsqh->offs, sizeof(chsqh->qh), 519 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 520 521 /* Allocate dummy QH where control traffic will be queued. */ 522 clsqh = uhci_alloc_sqh(sc); 523 if (clsqh == NULL) 524 goto fail4; 525 clsqh->hlink = chsqh; 526 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 527 clsqh->elink = NULL; 528 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 529 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 530 usb_syncmem(&clsqh->dma, clsqh->offs, sizeof(clsqh->qh), 531 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 532 533 /* 534 * Make all (virtual) frame list pointers point to the interrupt 535 * queue heads and the interrupt queue heads at the control 536 * queue head and point the physical frame list to the virtual. 537 */ 538 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 539 std = uhci_alloc_std(sc); 540 sqh = uhci_alloc_sqh(sc); 541 if (std == NULL || sqh == NULL) 542 return USBD_NOMEM; 543 std->link.sqh = sqh; 544 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 545 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 546 std->td.td_token = htole32(0); 547 std->td.td_buffer = htole32(0); 548 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 549 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 550 sqh->hlink = clsqh; 551 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 552 sqh->elink = NULL; 553 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 554 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 555 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 556 sc->sc_vframes[i].htd = std; 557 sc->sc_vframes[i].etd = std; 558 sc->sc_vframes[i].hqh = sqh; 559 sc->sc_vframes[i].eqh = sqh; 560 for (j = i; 561 j < UHCI_FRAMELIST_COUNT; 562 j += UHCI_VFRAMELIST_COUNT) 563 sc->sc_pframes[j] = htole32(std->physaddr); 564 } 565 usb_syncmem(&sc->sc_dma, 0, 566 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 567 BUS_DMASYNC_PREWRITE); 568 569 570 TAILQ_INIT(&sc->sc_intrhead); 571 572 sc->sc_xferpool = pool_cache_init(sizeof(struct uhci_xfer), 0, 0, 0, 573 "uhcixfer", NULL, IPL_USB, NULL, NULL, NULL); 574 575 callout_init(&sc->sc_poll_handle, CALLOUT_MPSAFE); 576 577 /* Set up the bus struct. */ 578 sc->sc_bus.ub_methods = &uhci_bus_methods; 579 sc->sc_bus.ub_pipesize = sizeof(struct uhci_pipe); 580 sc->sc_bus.ub_usedma = true; 581 582 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 583 584 DPRINTF("Enabling...", 0, 0, 0, 0); 585 586 err = uhci_run(sc, 1, 0); /* and here we go... */ 587 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 588 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 589 return err; 590 591 fail4: 592 uhci_free_sqh(sc, chsqh); 593 fail3: 594 uhci_free_sqh(sc, lsqh); 595 fail2: 596 uhci_free_sqh(sc, lsqh); 597 fail1: 598 uhci_free_std(sc, std); 599 600 return ENOMEM; 601 } 602 603 int 604 uhci_activate(device_t self, enum devact act) 605 { 606 struct uhci_softc *sc = device_private(self); 607 608 switch (act) { 609 case DVACT_DEACTIVATE: 610 sc->sc_dying = 1; 611 return 0; 612 default: 613 return EOPNOTSUPP; 614 } 615 } 616 617 void 618 uhci_childdet(device_t self, device_t child) 619 { 620 struct uhci_softc *sc = device_private(self); 621 622 KASSERT(sc->sc_child == child); 623 sc->sc_child = NULL; 624 } 625 626 int 627 uhci_detach(struct uhci_softc *sc, int flags) 628 { 629 int rv = 0; 630 631 if (sc->sc_child != NULL) 632 rv = config_detach(sc->sc_child, flags); 633 634 if (rv != 0) 635 return rv; 636 637 callout_halt(&sc->sc_poll_handle, NULL); 638 callout_destroy(&sc->sc_poll_handle); 639 640 mutex_destroy(&sc->sc_lock); 641 mutex_destroy(&sc->sc_intr_lock); 642 643 pool_cache_destroy(sc->sc_xferpool); 644 645 /* XXX free other data structures XXX */ 646 647 return rv; 648 } 649 650 struct usbd_xfer * 651 uhci_allocx(struct usbd_bus *bus, unsigned int nframes) 652 { 653 struct uhci_softc *sc = UHCI_BUS2SC(bus); 654 struct usbd_xfer *xfer; 655 656 xfer = pool_cache_get(sc->sc_xferpool, PR_WAITOK); 657 if (xfer != NULL) { 658 memset(xfer, 0, sizeof(struct uhci_xfer)); 659 660 /* Initialise this always so we can call remove on it. */ 661 usb_init_task(&xfer->ux_aborttask, uhci_timeout_task, xfer, 662 USB_TASKQ_MPSAFE); 663 #ifdef DIAGNOSTIC 664 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 665 uxfer->ux_isdone = true; 666 xfer->ux_state = XFER_BUSY; 667 #endif 668 } 669 return xfer; 670 } 671 672 void 673 uhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 674 { 675 struct uhci_softc *sc = UHCI_BUS2SC(bus); 676 struct uhci_xfer *uxfer __diagused = UHCI_XFER2UXFER(xfer); 677 678 KASSERTMSG(xfer->ux_state == XFER_BUSY, "xfer %p state %d\n", xfer, 679 xfer->ux_state); 680 KASSERTMSG(uxfer->ux_isdone, "xfer %p not done\n", xfer); 681 #ifdef DIAGNOSTIC 682 xfer->ux_state = XFER_FREE; 683 #endif 684 pool_cache_put(sc->sc_xferpool, xfer); 685 } 686 687 Static void 688 uhci_get_lock(struct usbd_bus *bus, kmutex_t **lock) 689 { 690 struct uhci_softc *sc = UHCI_BUS2SC(bus); 691 692 *lock = &sc->sc_lock; 693 } 694 695 696 /* 697 * Handle suspend/resume. 698 * 699 * We need to switch to polling mode here, because this routine is 700 * called from an interrupt context. This is all right since we 701 * are almost suspended anyway. 702 */ 703 bool 704 uhci_resume(device_t dv, const pmf_qual_t *qual) 705 { 706 uhci_softc_t *sc = device_private(dv); 707 int cmd; 708 709 mutex_spin_enter(&sc->sc_intr_lock); 710 711 cmd = UREAD2(sc, UHCI_CMD); 712 sc->sc_bus.ub_usepolling++; 713 UWRITE2(sc, UHCI_INTR, 0); 714 uhci_globalreset(sc); 715 uhci_reset(sc); 716 if (cmd & UHCI_CMD_RS) 717 uhci_run(sc, 0, 1); 718 719 /* restore saved state */ 720 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 721 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 722 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 723 724 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 725 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_DELAY, &sc->sc_intr_lock); 726 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 727 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 728 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 729 UHCICMD(sc, UHCI_CMD_MAXP); 730 uhci_run(sc, 1, 1); /* and start traffic again */ 731 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_RECOVERY, &sc->sc_intr_lock); 732 sc->sc_bus.ub_usepolling--; 733 if (sc->sc_intr_xfer != NULL) 734 callout_reset(&sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, 735 sc->sc_intr_xfer); 736 #ifdef UHCI_DEBUG 737 if (uhcidebug >= 2) 738 uhci_dumpregs(sc); 739 #endif 740 741 sc->sc_suspend = PWR_RESUME; 742 mutex_spin_exit(&sc->sc_intr_lock); 743 744 return true; 745 } 746 747 bool 748 uhci_suspend(device_t dv, const pmf_qual_t *qual) 749 { 750 uhci_softc_t *sc = device_private(dv); 751 int cmd; 752 753 mutex_spin_enter(&sc->sc_intr_lock); 754 755 cmd = UREAD2(sc, UHCI_CMD); 756 757 #ifdef UHCI_DEBUG 758 if (uhcidebug >= 2) 759 uhci_dumpregs(sc); 760 #endif 761 if (sc->sc_intr_xfer != NULL) 762 callout_stop(&sc->sc_poll_handle); 763 sc->sc_suspend = PWR_SUSPEND; 764 sc->sc_bus.ub_usepolling++; 765 766 uhci_run(sc, 0, 1); /* stop the controller */ 767 cmd &= ~UHCI_CMD_RS; 768 769 /* save some state if BIOS doesn't */ 770 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 771 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 772 773 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 774 775 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter suspend */ 776 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_WAIT, &sc->sc_intr_lock); 777 sc->sc_bus.ub_usepolling--; 778 779 mutex_spin_exit(&sc->sc_intr_lock); 780 781 return true; 782 } 783 784 #ifdef UHCI_DEBUG 785 Static void 786 uhci_dumpregs(uhci_softc_t *sc) 787 { 788 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 789 DPRINTF("cmd =%04jx sts =%04jx intr =%04jx frnum =%04jx", 790 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS), 791 UREAD2(sc, UHCI_INTR), UREAD2(sc, UHCI_FRNUM)); 792 DPRINTF("sof =%04jx portsc1=%04jx portsc2=%04jx flbase=%08jx", 793 UREAD1(sc, UHCI_SOF), UREAD2(sc, UHCI_PORTSC1), 794 UREAD2(sc, UHCI_PORTSC2), UREAD4(sc, UHCI_FLBASEADDR)); 795 } 796 797 void 798 uhci_dump_td(uhci_soft_td_t *p) 799 { 800 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 801 802 usb_syncmem(&p->dma, p->offs, sizeof(p->td), 803 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 804 805 DPRINTF("TD(%#jx) at 0x%08jx", (uintptr_t)p, p->physaddr, 0, 0); 806 DPRINTF(" link=0x%08jx status=0x%08jx " 807 "token=0x%08x buffer=0x%08x", 808 le32toh(p->td.td_link), 809 le32toh(p->td.td_status), 810 le32toh(p->td.td_token), 811 le32toh(p->td.td_buffer)); 812 813 DPRINTF("bitstuff=%jd crcto =%jd nak =%jd babble =%jd", 814 !!(le32toh(p->td.td_status) & UHCI_TD_BITSTUFF), 815 !!(le32toh(p->td.td_status) & UHCI_TD_CRCTO), 816 !!(le32toh(p->td.td_status) & UHCI_TD_NAK), 817 !!(le32toh(p->td.td_status) & UHCI_TD_BABBLE)); 818 DPRINTF("dbuffer =%jd stalled =%jd active =%jd ioc =%jd", 819 !!(le32toh(p->td.td_status) & UHCI_TD_DBUFFER), 820 !!(le32toh(p->td.td_status) & UHCI_TD_STALLED), 821 !!(le32toh(p->td.td_status) & UHCI_TD_ACTIVE), 822 !!(le32toh(p->td.td_status) & UHCI_TD_IOC)); 823 DPRINTF("ios =%jd ls =%jd spd =%jd", 824 !!(le32toh(p->td.td_status) & UHCI_TD_IOS), 825 !!(le32toh(p->td.td_status) & UHCI_TD_LS), 826 !!(le32toh(p->td.td_status) & UHCI_TD_SPD), 0); 827 DPRINTF("errcnt =%d actlen =%d pid=%02x", 828 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 829 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 830 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 0); 831 DPRINTF("addr=%jd endpt=%jd D=%jd maxlen=%jd,", 832 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 833 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 834 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 835 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token))); 836 } 837 838 void 839 uhci_dump_qh(uhci_soft_qh_t *sqh) 840 { 841 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 842 843 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 844 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 845 846 DPRINTF("QH(%#jx) at 0x%08jx: hlink=%08jx elink=%08jx", (uintptr_t)sqh, 847 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 848 le32toh(sqh->qh.qh_elink)); 849 850 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), BUS_DMASYNC_PREREAD); 851 } 852 853 854 #if 1 855 void 856 uhci_dump(void) 857 { 858 uhci_dump_all(thesc); 859 } 860 #endif 861 862 void 863 uhci_dump_all(uhci_softc_t *sc) 864 { 865 uhci_dumpregs(sc); 866 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 867 uhci_dump_qhs(sc->sc_lctl_start); 868 } 869 870 871 void 872 uhci_dump_qhs(uhci_soft_qh_t *sqh) 873 { 874 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 875 876 uhci_dump_qh(sqh); 877 878 /* 879 * uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 880 * Traverses sideways first, then down. 881 * 882 * QH1 883 * QH2 884 * No QH 885 * TD2.1 886 * TD2.2 887 * TD1.1 888 * etc. 889 * 890 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 891 */ 892 893 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 894 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 895 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 896 uhci_dump_qhs(sqh->hlink); 897 else 898 DPRINTF("No QH", 0, 0, 0, 0); 899 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), BUS_DMASYNC_PREREAD); 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 QH", 0, 0, 0, 0); 905 } 906 907 void 908 uhci_dump_tds(uhci_soft_td_t *std) 909 { 910 uhci_soft_td_t *td; 911 int stop; 912 913 for (td = std; td != NULL; td = td->link.std) { 914 uhci_dump_td(td); 915 916 /* 917 * Check whether the link pointer in this TD marks 918 * the link pointer as end of queue. This avoids 919 * printing the free list in case the queue/TD has 920 * already been moved there (seatbelt). 921 */ 922 usb_syncmem(&td->dma, td->offs + offsetof(uhci_td_t, td_link), 923 sizeof(td->td.td_link), 924 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 925 stop = (le32toh(td->td.td_link) & UHCI_PTR_T || 926 le32toh(td->td.td_link) == 0); 927 usb_syncmem(&td->dma, td->offs + offsetof(uhci_td_t, td_link), 928 sizeof(td->td.td_link), BUS_DMASYNC_PREREAD); 929 if (stop) 930 break; 931 } 932 } 933 934 Static void 935 uhci_dump_ii(struct uhci_xfer *ux) 936 { 937 struct usbd_pipe *pipe; 938 usb_endpoint_descriptor_t *ed; 939 struct usbd_device *dev; 940 941 if (ux == NULL) { 942 printf("ux NULL\n"); 943 return; 944 } 945 pipe = ux->ux_xfer.ux_pipe; 946 if (pipe == NULL) { 947 printf("ux %p: done=%d pipe=NULL\n", ux, ux->ux_isdone); 948 return; 949 } 950 if (pipe->up_endpoint == NULL) { 951 printf("ux %p: done=%d pipe=%p pipe->up_endpoint=NULL\n", 952 ux, ux->ux_isdone, pipe); 953 return; 954 } 955 if (pipe->up_dev == NULL) { 956 printf("ux %p: done=%d pipe=%p pipe->up_dev=NULL\n", 957 ux, ux->ux_isdone, pipe); 958 return; 959 } 960 ed = pipe->up_endpoint->ue_edesc; 961 dev = pipe->up_dev; 962 printf("ux %p: done=%d dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 963 ux, ux->ux_isdone, dev, 964 UGETW(dev->ud_ddesc.idVendor), 965 UGETW(dev->ud_ddesc.idProduct), 966 dev->ud_addr, pipe, 967 ed->bEndpointAddress, ed->bmAttributes); 968 } 969 970 void uhci_dump_iis(struct uhci_softc *sc); 971 void 972 uhci_dump_iis(struct uhci_softc *sc) 973 { 974 struct uhci_xfer *ux; 975 976 printf("interrupt list:\n"); 977 TAILQ_FOREACH(ux, &sc->sc_intrhead, ux_list) 978 uhci_dump_ii(ux); 979 } 980 981 void iidump(void); 982 void iidump(void) { uhci_dump_iis(thesc); } 983 984 #endif 985 986 /* 987 * This routine is executed periodically and simulates interrupts 988 * from the root controller interrupt pipe for port status change. 989 */ 990 void 991 uhci_poll_hub(void *addr) 992 { 993 struct usbd_xfer *xfer = addr; 994 struct usbd_pipe *pipe = xfer->ux_pipe; 995 uhci_softc_t *sc; 996 u_char *p; 997 998 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 999 1000 if (__predict_false(pipe->up_dev == NULL || pipe->up_dev->ud_bus == NULL)) 1001 return; /* device has detached */ 1002 sc = UHCI_PIPE2SC(pipe); 1003 callout_reset(&sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1004 1005 p = xfer->ux_buf; 1006 p[0] = 0; 1007 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1008 p[0] |= 1<<1; 1009 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1010 p[0] |= 1<<2; 1011 if (p[0] == 0) 1012 /* No change, try again in a while */ 1013 return; 1014 1015 xfer->ux_actlen = 1; 1016 xfer->ux_status = USBD_NORMAL_COMPLETION; 1017 mutex_enter(&sc->sc_lock); 1018 usb_transfer_complete(xfer); 1019 mutex_exit(&sc->sc_lock); 1020 } 1021 1022 void 1023 uhci_root_intr_done(struct usbd_xfer *xfer) 1024 { 1025 } 1026 1027 /* 1028 * Let the last QH loop back to the high speed control transfer QH. 1029 * This is what intel calls "bandwidth reclamation" and improves 1030 * USB performance a lot for some devices. 1031 * If we are already looping, just count it. 1032 */ 1033 void 1034 uhci_add_loop(uhci_softc_t *sc) 1035 { 1036 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1037 1038 #ifdef UHCI_DEBUG 1039 if (uhcinoloop) 1040 return; 1041 #endif 1042 if (++sc->sc_loops == 1) { 1043 DPRINTFN(5, "add loop", 0, 0, 0, 0); 1044 /* Note, we don't loop back the soft pointer. */ 1045 sc->sc_last_qh->qh.qh_hlink = 1046 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1047 usb_syncmem(&sc->sc_last_qh->dma, 1048 sc->sc_last_qh->offs + offsetof(uhci_qh_t, qh_hlink), 1049 sizeof(sc->sc_last_qh->qh.qh_hlink), 1050 BUS_DMASYNC_PREWRITE); 1051 } 1052 } 1053 1054 void 1055 uhci_rem_loop(uhci_softc_t *sc) 1056 { 1057 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1058 1059 #ifdef UHCI_DEBUG 1060 if (uhcinoloop) 1061 return; 1062 #endif 1063 if (--sc->sc_loops == 0) { 1064 DPRINTFN(5, "remove loop", 0, 0, 0, 0); 1065 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1066 usb_syncmem(&sc->sc_last_qh->dma, 1067 sc->sc_last_qh->offs + offsetof(uhci_qh_t, qh_hlink), 1068 sizeof(sc->sc_last_qh->qh.qh_hlink), 1069 BUS_DMASYNC_PREWRITE); 1070 } 1071 } 1072 1073 /* Add high speed control QH, called with lock held. */ 1074 void 1075 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1076 { 1077 uhci_soft_qh_t *eqh; 1078 1079 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1080 1081 KASSERT(mutex_owned(&sc->sc_lock)); 1082 1083 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1084 eqh = sc->sc_hctl_end; 1085 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1086 sizeof(eqh->qh.qh_hlink), 1087 BUS_DMASYNC_POSTWRITE); 1088 sqh->hlink = eqh->hlink; 1089 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1090 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1091 BUS_DMASYNC_PREWRITE); 1092 eqh->hlink = sqh; 1093 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1094 sc->sc_hctl_end = sqh; 1095 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1096 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1097 #ifdef UHCI_CTL_LOOP 1098 uhci_add_loop(sc); 1099 #endif 1100 } 1101 1102 /* Remove high speed control QH, called with lock held. */ 1103 void 1104 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1105 { 1106 uhci_soft_qh_t *pqh; 1107 uint32_t elink; 1108 1109 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1110 1111 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1112 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1113 #ifdef UHCI_CTL_LOOP 1114 uhci_rem_loop(sc); 1115 #endif 1116 /* 1117 * The T bit should be set in the elink of the QH so that the HC 1118 * doesn't follow the pointer. This condition may fail if the 1119 * the transferred packet was short so that the QH still points 1120 * at the last used TD. 1121 * In this case we set the T bit and wait a little for the HC 1122 * to stop looking at the TD. 1123 * Note that if the TD chain is large enough, the controller 1124 * may still be looking at the chain at the end of this function. 1125 * uhci_free_std_chain() will make sure the controller stops 1126 * looking at it quickly, but until then we should not change 1127 * sqh->hlink. 1128 */ 1129 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1130 sizeof(sqh->qh.qh_elink), 1131 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1132 elink = le32toh(sqh->qh.qh_elink); 1133 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1134 sizeof(sqh->qh.qh_elink), BUS_DMASYNC_PREREAD); 1135 if (!(elink & UHCI_PTR_T)) { 1136 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1137 usb_syncmem(&sqh->dma, 1138 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1139 sizeof(sqh->qh.qh_elink), 1140 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1141 delay(UHCI_QH_REMOVE_DELAY); 1142 } 1143 1144 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1145 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1146 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1147 pqh->hlink = sqh->hlink; 1148 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1149 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1150 sizeof(pqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1151 delay(UHCI_QH_REMOVE_DELAY); 1152 if (sc->sc_hctl_end == sqh) 1153 sc->sc_hctl_end = pqh; 1154 } 1155 1156 /* Add low speed control QH, called with lock held. */ 1157 void 1158 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1159 { 1160 uhci_soft_qh_t *eqh; 1161 1162 KASSERT(mutex_owned(&sc->sc_lock)); 1163 1164 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1165 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1166 1167 eqh = sc->sc_lctl_end; 1168 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1169 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1170 sqh->hlink = eqh->hlink; 1171 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1172 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1173 BUS_DMASYNC_PREWRITE); 1174 eqh->hlink = sqh; 1175 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1176 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1177 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1178 sc->sc_lctl_end = sqh; 1179 } 1180 1181 /* Remove low speed control QH, called with lock held. */ 1182 void 1183 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1184 { 1185 uhci_soft_qh_t *pqh; 1186 uint32_t elink; 1187 1188 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1189 1190 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1191 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1192 1193 /* See comment in uhci_remove_hs_ctrl() */ 1194 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1195 sizeof(sqh->qh.qh_elink), 1196 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1197 elink = le32toh(sqh->qh.qh_elink); 1198 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1199 sizeof(sqh->qh.qh_elink), BUS_DMASYNC_PREREAD); 1200 if (!(elink & UHCI_PTR_T)) { 1201 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1202 usb_syncmem(&sqh->dma, 1203 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1204 sizeof(sqh->qh.qh_elink), 1205 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1206 delay(UHCI_QH_REMOVE_DELAY); 1207 } 1208 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1209 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1210 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1211 pqh->hlink = sqh->hlink; 1212 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1213 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1214 sizeof(pqh->qh.qh_hlink), 1215 BUS_DMASYNC_PREWRITE); 1216 delay(UHCI_QH_REMOVE_DELAY); 1217 if (sc->sc_lctl_end == sqh) 1218 sc->sc_lctl_end = pqh; 1219 } 1220 1221 /* Add bulk QH, called with lock held. */ 1222 void 1223 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1224 { 1225 uhci_soft_qh_t *eqh; 1226 1227 KASSERT(mutex_owned(&sc->sc_lock)); 1228 1229 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1230 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1231 1232 eqh = sc->sc_bulk_end; 1233 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1234 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1235 sqh->hlink = eqh->hlink; 1236 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1237 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1238 BUS_DMASYNC_PREWRITE); 1239 eqh->hlink = sqh; 1240 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1241 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1242 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1243 sc->sc_bulk_end = sqh; 1244 uhci_add_loop(sc); 1245 } 1246 1247 /* Remove bulk QH, called with lock held. */ 1248 void 1249 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1250 { 1251 uhci_soft_qh_t *pqh; 1252 1253 KASSERT(mutex_owned(&sc->sc_lock)); 1254 1255 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1256 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1257 1258 uhci_rem_loop(sc); 1259 /* See comment in uhci_remove_hs_ctrl() */ 1260 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1261 sizeof(sqh->qh.qh_elink), 1262 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1263 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1264 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1265 usb_syncmem(&sqh->dma, 1266 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1267 sizeof(sqh->qh.qh_elink), 1268 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1269 delay(UHCI_QH_REMOVE_DELAY); 1270 } 1271 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1272 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1273 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1274 pqh->hlink = sqh->hlink; 1275 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1276 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1277 sizeof(pqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1278 delay(UHCI_QH_REMOVE_DELAY); 1279 if (sc->sc_bulk_end == sqh) 1280 sc->sc_bulk_end = pqh; 1281 } 1282 1283 Static int uhci_intr1(uhci_softc_t *); 1284 1285 int 1286 uhci_intr(void *arg) 1287 { 1288 uhci_softc_t *sc = arg; 1289 int ret = 0; 1290 1291 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1292 1293 mutex_spin_enter(&sc->sc_intr_lock); 1294 1295 if (sc->sc_dying || !device_has_power(sc->sc_dev)) 1296 goto done; 1297 1298 if (sc->sc_bus.ub_usepolling || UREAD2(sc, UHCI_INTR) == 0) { 1299 DPRINTFN(16, "ignored interrupt while polling", 0, 0, 0, 0); 1300 goto done; 1301 } 1302 1303 ret = uhci_intr1(sc); 1304 1305 done: 1306 mutex_spin_exit(&sc->sc_intr_lock); 1307 return ret; 1308 } 1309 1310 int 1311 uhci_intr1(uhci_softc_t *sc) 1312 { 1313 int status; 1314 int ack; 1315 1316 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1317 1318 #ifdef UHCI_DEBUG 1319 if (uhcidebug >= 15) { 1320 DPRINTF("sc %#jx", (uintptr_t)sc, 0, 0, 0); 1321 uhci_dumpregs(sc); 1322 } 1323 #endif 1324 1325 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1326 1327 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1328 /* Check if the interrupt was for us. */ 1329 if (status == 0) 1330 return 0; 1331 1332 if (sc->sc_suspend != PWR_RESUME) { 1333 #ifdef DIAGNOSTIC 1334 printf("%s: interrupt while not operating ignored\n", 1335 device_xname(sc->sc_dev)); 1336 #endif 1337 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1338 return 0; 1339 } 1340 1341 ack = 0; 1342 if (status & UHCI_STS_USBINT) 1343 ack |= UHCI_STS_USBINT; 1344 if (status & UHCI_STS_USBEI) 1345 ack |= UHCI_STS_USBEI; 1346 if (status & UHCI_STS_RD) { 1347 ack |= UHCI_STS_RD; 1348 #ifdef UHCI_DEBUG 1349 printf("%s: resume detect\n", device_xname(sc->sc_dev)); 1350 #endif 1351 } 1352 if (status & UHCI_STS_HSE) { 1353 ack |= UHCI_STS_HSE; 1354 printf("%s: host system error\n", device_xname(sc->sc_dev)); 1355 } 1356 if (status & UHCI_STS_HCPE) { 1357 ack |= UHCI_STS_HCPE; 1358 printf("%s: host controller process error\n", 1359 device_xname(sc->sc_dev)); 1360 } 1361 1362 /* When HCHalted=1 and Run/Stop=0 , it is normal */ 1363 if ((status & UHCI_STS_HCH) && (UREAD2(sc, UHCI_CMD) & UHCI_CMD_RS)) { 1364 /* no acknowledge needed */ 1365 if (!sc->sc_dying) { 1366 printf("%s: host controller halted\n", 1367 device_xname(sc->sc_dev)); 1368 #ifdef UHCI_DEBUG 1369 uhci_dump_all(sc); 1370 #endif 1371 } 1372 sc->sc_dying = 1; 1373 } 1374 1375 if (!ack) 1376 return 0; /* nothing to acknowledge */ 1377 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1378 1379 usb_schedsoftintr(&sc->sc_bus); 1380 1381 DPRINTFN(15, "sc %#jx done", (uintptr_t)sc, 0, 0, 0); 1382 1383 return 1; 1384 } 1385 1386 void 1387 uhci_softintr(void *v) 1388 { 1389 struct usbd_bus *bus = v; 1390 uhci_softc_t *sc = UHCI_BUS2SC(bus); 1391 struct uhci_xfer *ux, *nextux; 1392 ux_completeq_t cq; 1393 1394 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1395 DPRINTF("sc %#jx", (uintptr_t)sc, 0, 0, 0); 1396 1397 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1398 1399 TAILQ_INIT(&cq); 1400 /* 1401 * Interrupts on UHCI really suck. When the host controller 1402 * interrupts because a transfer is completed there is no 1403 * way of knowing which transfer it was. You can scan down 1404 * the TDs and QHs of the previous frame to limit the search, 1405 * but that assumes that the interrupt was not delayed by more 1406 * than 1 ms, which may not always be true (e.g. after debug 1407 * output on a slow console). 1408 * We scan all interrupt descriptors to see if any have 1409 * completed. 1410 */ 1411 TAILQ_FOREACH_SAFE(ux, &sc->sc_intrhead, ux_list, nextux) { 1412 uhci_check_intr(sc, ux, &cq); 1413 } 1414 1415 /* 1416 * We abuse ux_list for the interrupt and complete lists and 1417 * interrupt transfers will get re-added here so use 1418 * the _SAFE version of TAILQ_FOREACH. 1419 */ 1420 TAILQ_FOREACH_SAFE(ux, &cq, ux_list, nextux) { 1421 DPRINTF("ux %#jx", (uintptr_t)ux, 0, 0, 0); 1422 usb_transfer_complete(&ux->ux_xfer); 1423 } 1424 1425 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1426 } 1427 1428 /* Check for an interrupt. */ 1429 void 1430 uhci_check_intr(uhci_softc_t *sc, struct uhci_xfer *ux, ux_completeq_t *cqp) 1431 { 1432 uhci_soft_td_t *std, *fstd = NULL, *lstd = NULL; 1433 uint32_t status; 1434 1435 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1436 DPRINTFN(15, "ux %#jx", (uintptr_t)ux, 0, 0, 0); 1437 1438 KASSERT(ux != NULL); 1439 1440 struct usbd_xfer *xfer = &ux->ux_xfer; 1441 if (xfer->ux_status == USBD_CANCELLED || 1442 xfer->ux_status == USBD_TIMEOUT) { 1443 DPRINTF("aborted xfer %#jx", (uintptr_t)xfer, 0, 0, 0); 1444 return; 1445 } 1446 1447 switch (ux->ux_type) { 1448 case UX_CTRL: 1449 fstd = ux->ux_setup; 1450 lstd = ux->ux_stat; 1451 break; 1452 case UX_BULK: 1453 case UX_INTR: 1454 case UX_ISOC: 1455 fstd = ux->ux_stdstart; 1456 lstd = ux->ux_stdend; 1457 break; 1458 default: 1459 KASSERT(false); 1460 break; 1461 } 1462 if (fstd == NULL) 1463 return; 1464 1465 KASSERT(lstd != NULL); 1466 1467 usb_syncmem(&lstd->dma, 1468 lstd->offs + offsetof(uhci_td_t, td_status), 1469 sizeof(lstd->td.td_status), 1470 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1471 status = le32toh(lstd->td.td_status); 1472 usb_syncmem(&lstd->dma, 1473 lstd->offs + offsetof(uhci_td_t, td_status), 1474 sizeof(lstd->td.td_status), 1475 BUS_DMASYNC_PREREAD); 1476 1477 /* If the last TD is not marked active we can complete */ 1478 if (!(status & UHCI_TD_ACTIVE)) { 1479 done: 1480 DPRINTFN(12, "ux=%#jx done", (uintptr_t)ux, 0, 0, 0); 1481 uhci_idone(ux, cqp); 1482 return; 1483 } 1484 1485 /* 1486 * If the last TD is still active we need to check whether there 1487 * is an error somewhere in the middle, or whether there was a 1488 * short packet (SPD and not ACTIVE). 1489 */ 1490 DPRINTFN(12, "active ux=%#jx", (uintptr_t)ux, 0, 0, 0); 1491 for (std = fstd; std != lstd; std = std->link.std) { 1492 usb_syncmem(&std->dma, 1493 std->offs + offsetof(uhci_td_t, td_status), 1494 sizeof(std->td.td_status), 1495 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1496 status = le32toh(std->td.td_status); 1497 usb_syncmem(&std->dma, 1498 std->offs + offsetof(uhci_td_t, td_status), 1499 sizeof(std->td.td_status), BUS_DMASYNC_PREREAD); 1500 1501 /* If there's an active TD the xfer isn't done. */ 1502 if (status & UHCI_TD_ACTIVE) { 1503 DPRINTFN(12, "ux=%#jx std=%#jx still active", 1504 (uintptr_t)ux, (uintptr_t)std, 0, 0); 1505 return; 1506 } 1507 1508 /* Any kind of error makes the xfer done. */ 1509 if (status & UHCI_TD_STALLED) 1510 goto done; 1511 1512 /* 1513 * If the data phase of a control transfer is short, we need 1514 * to complete the status stage 1515 */ 1516 1517 if ((status & UHCI_TD_SPD) && ux->ux_type == UX_CTRL) { 1518 struct uhci_pipe *upipe = 1519 UHCI_PIPE2UPIPE(xfer->ux_pipe); 1520 uhci_soft_qh_t *sqh = upipe->ctrl.sqh; 1521 uhci_soft_td_t *stat = upipe->ctrl.stat; 1522 1523 DPRINTFN(12, "ux=%#jx std=%#jx control status" 1524 "phase needs completion", (uintptr_t)ux, 1525 (uintptr_t)ux->ux_stdstart, 0, 0); 1526 1527 sqh->qh.qh_elink = 1528 htole32(stat->physaddr | UHCI_PTR_TD); 1529 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1530 BUS_DMASYNC_PREWRITE); 1531 break; 1532 } 1533 1534 /* We want short packets, and it is short: it's done */ 1535 usb_syncmem(&std->dma, 1536 std->offs + offsetof(uhci_td_t, td_token), 1537 sizeof(std->td.td_token), 1538 BUS_DMASYNC_POSTWRITE); 1539 1540 if ((status & UHCI_TD_SPD) && 1541 UHCI_TD_GET_ACTLEN(status) < 1542 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) { 1543 goto done; 1544 } 1545 } 1546 } 1547 1548 /* Called with USB lock held. */ 1549 void 1550 uhci_idone(struct uhci_xfer *ux, ux_completeq_t *cqp) 1551 { 1552 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1553 struct usbd_xfer *xfer = &ux->ux_xfer; 1554 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 1555 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 1556 uhci_soft_td_t *std; 1557 uint32_t status = 0, nstatus; 1558 const bool polling __diagused = sc->sc_bus.ub_usepolling; 1559 int actlen; 1560 1561 KASSERT(polling || mutex_owned(&sc->sc_lock)); 1562 1563 DPRINTFN(12, "ux=%#jx", (uintptr_t)ux, 0, 0, 0); 1564 1565 /* 1566 * If software has completed it, either by cancellation 1567 * or timeout, drop it on the floor. 1568 */ 1569 if (xfer->ux_status != USBD_IN_PROGRESS) { 1570 KASSERT(xfer->ux_status == USBD_CANCELLED || 1571 xfer->ux_status == USBD_TIMEOUT); 1572 DPRINTF("aborted xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 1573 return; 1574 } 1575 1576 /* 1577 * Cancel the timeout and the task, which have not yet 1578 * run. If they have already fired, at worst they are 1579 * waiting for the lock. They will see that the xfer 1580 * is no longer in progress and give up. 1581 */ 1582 callout_stop(&xfer->ux_callout); 1583 usb_rem_task(xfer->ux_pipe->up_dev, &xfer->ux_aborttask); 1584 1585 #ifdef DIAGNOSTIC 1586 #ifdef UHCI_DEBUG 1587 if (ux->ux_isdone) { 1588 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1589 uhci_dump_ii(ux); 1590 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1591 } 1592 #endif 1593 KASSERT(!ux->ux_isdone); 1594 KASSERTMSG(!ux->ux_isdone, "xfer %p type %d status %d", xfer, 1595 ux->ux_type, xfer->ux_status); 1596 ux->ux_isdone = true; 1597 #endif 1598 1599 if (xfer->ux_nframes != 0) { 1600 /* Isoc transfer, do things differently. */ 1601 uhci_soft_td_t **stds = upipe->isoc.stds; 1602 int i, n, nframes, len; 1603 1604 DPRINTFN(5, "ux=%#jx isoc ready", (uintptr_t)ux, 0, 0, 0); 1605 1606 nframes = xfer->ux_nframes; 1607 actlen = 0; 1608 n = ux->ux_curframe; 1609 for (i = 0; i < nframes; i++) { 1610 std = stds[n]; 1611 #ifdef UHCI_DEBUG 1612 if (uhcidebug >= 5) { 1613 DPRINTF("isoc TD %jd", i, 0, 0, 0); 1614 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1615 uhci_dump_td(std); 1616 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1617 } 1618 #endif 1619 if (++n >= UHCI_VFRAMELIST_COUNT) 1620 n = 0; 1621 usb_syncmem(&std->dma, 1622 std->offs + offsetof(uhci_td_t, td_status), 1623 sizeof(std->td.td_status), 1624 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1625 status = le32toh(std->td.td_status); 1626 len = UHCI_TD_GET_ACTLEN(status); 1627 xfer->ux_frlengths[i] = len; 1628 actlen += len; 1629 } 1630 upipe->isoc.inuse -= nframes; 1631 xfer->ux_actlen = actlen; 1632 xfer->ux_status = USBD_NORMAL_COMPLETION; 1633 goto end; 1634 } 1635 1636 #ifdef UHCI_DEBUG 1637 DPRINTFN(10, "ux=%#jx, xfer=%#jx, pipe=%#jx ready", (uintptr_t)ux, 1638 (uintptr_t)xfer, (uintptr_t)upipe, 0); 1639 if (uhcidebug >= 10) { 1640 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1641 uhci_dump_tds(ux->ux_stdstart); 1642 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1643 } 1644 #endif 1645 1646 /* The transfer is done, compute actual length and status. */ 1647 actlen = 0; 1648 for (std = ux->ux_stdstart; std != NULL; std = std->link.std) { 1649 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 1650 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1651 nstatus = le32toh(std->td.td_status); 1652 if (nstatus & UHCI_TD_ACTIVE) 1653 break; 1654 1655 status = nstatus; 1656 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1657 UHCI_TD_PID_SETUP) 1658 actlen += UHCI_TD_GET_ACTLEN(status); 1659 else { 1660 /* 1661 * UHCI will report CRCTO in addition to a STALL or NAK 1662 * for a SETUP transaction. See section 3.2.2, "TD 1663 * CONTROL AND STATUS". 1664 */ 1665 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1666 status &= ~UHCI_TD_CRCTO; 1667 } 1668 } 1669 /* If there are left over TDs we need to update the toggle. */ 1670 if (std != NULL) 1671 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1672 1673 status &= UHCI_TD_ERROR; 1674 DPRINTFN(10, "actlen=%jd, status=0x%jx", actlen, status, 0, 0); 1675 xfer->ux_actlen = actlen; 1676 if (status != 0) { 1677 1678 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1679 "error, addr=%jd, endpt=0x%02jx", 1680 xfer->ux_pipe->up_dev->ud_addr, 1681 xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress, 1682 0, 0); 1683 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1684 "bitstuff=%jd crcto =%jd nak =%jd babble =%jd", 1685 !!(status & UHCI_TD_BITSTUFF), 1686 !!(status & UHCI_TD_CRCTO), 1687 !!(status & UHCI_TD_NAK), 1688 !!(status & UHCI_TD_BABBLE)); 1689 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1690 "dbuffer =%jd stalled =%jd active =%jd", 1691 !!(status & UHCI_TD_DBUFFER), 1692 !!(status & UHCI_TD_STALLED), 1693 !!(status & UHCI_TD_ACTIVE), 1694 0); 1695 1696 if (status == UHCI_TD_STALLED) 1697 xfer->ux_status = USBD_STALLED; 1698 else 1699 xfer->ux_status = USBD_IOERROR; /* more info XXX */ 1700 } else { 1701 xfer->ux_status = USBD_NORMAL_COMPLETION; 1702 } 1703 1704 end: 1705 uhci_del_intr_list(sc, ux); 1706 if (cqp) 1707 TAILQ_INSERT_TAIL(cqp, ux, ux_list); 1708 1709 KASSERT(polling || mutex_owned(&sc->sc_lock)); 1710 DPRINTFN(12, "ux=%#jx done", (uintptr_t)ux, 0, 0, 0); 1711 } 1712 1713 /* 1714 * Called when a request does not complete. 1715 */ 1716 void 1717 uhci_timeout(void *addr) 1718 { 1719 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1720 struct usbd_xfer *xfer = addr; 1721 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 1722 struct usbd_device *dev = xfer->ux_pipe->up_dev; 1723 1724 DPRINTF("xfer %#jx", (uintptr_t)xfer, 0, 0, 0); 1725 1726 mutex_enter(&sc->sc_lock); 1727 if (!sc->sc_dying && xfer->ux_status == USBD_IN_PROGRESS) 1728 usb_add_task(dev, &xfer->ux_aborttask, USB_TASKQ_HC); 1729 mutex_exit(&sc->sc_lock); 1730 } 1731 1732 void 1733 uhci_timeout_task(void *addr) 1734 { 1735 struct usbd_xfer *xfer = addr; 1736 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 1737 1738 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1739 1740 DPRINTF("xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 1741 1742 mutex_enter(&sc->sc_lock); 1743 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1744 mutex_exit(&sc->sc_lock); 1745 } 1746 1747 void 1748 uhci_poll(struct usbd_bus *bus) 1749 { 1750 uhci_softc_t *sc = UHCI_BUS2SC(bus); 1751 1752 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1753 mutex_spin_enter(&sc->sc_intr_lock); 1754 uhci_intr1(sc); 1755 mutex_spin_exit(&sc->sc_intr_lock); 1756 } 1757 } 1758 1759 void 1760 uhci_reset(uhci_softc_t *sc) 1761 { 1762 int n; 1763 1764 UHCICMD(sc, UHCI_CMD_HCRESET); 1765 /* The reset bit goes low when the controller is done. */ 1766 for (n = 0; n < UHCI_RESET_TIMEOUT && 1767 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1768 usb_delay_ms(&sc->sc_bus, 1); 1769 if (n >= UHCI_RESET_TIMEOUT) 1770 printf("%s: controller did not reset\n", 1771 device_xname(sc->sc_dev)); 1772 } 1773 1774 usbd_status 1775 uhci_run(uhci_softc_t *sc, int run, int locked) 1776 { 1777 int n, running; 1778 uint16_t cmd; 1779 1780 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1781 1782 run = run != 0; 1783 if (!locked) 1784 mutex_spin_enter(&sc->sc_intr_lock); 1785 1786 DPRINTF("setting run=%jd", run, 0, 0, 0); 1787 cmd = UREAD2(sc, UHCI_CMD); 1788 if (run) 1789 cmd |= UHCI_CMD_RS; 1790 else 1791 cmd &= ~UHCI_CMD_RS; 1792 UHCICMD(sc, cmd); 1793 for (n = 0; n < 10; n++) { 1794 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1795 /* return when we've entered the state we want */ 1796 if (run == running) { 1797 if (!locked) 1798 mutex_spin_exit(&sc->sc_intr_lock); 1799 DPRINTF("done cmd=0x%jx sts=0x%jx", 1800 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS), 0, 0); 1801 return USBD_NORMAL_COMPLETION; 1802 } 1803 usb_delay_ms_locked(&sc->sc_bus, 1, &sc->sc_intr_lock); 1804 } 1805 if (!locked) 1806 mutex_spin_exit(&sc->sc_intr_lock); 1807 printf("%s: cannot %s\n", device_xname(sc->sc_dev), 1808 run ? "start" : "stop"); 1809 return USBD_IOERROR; 1810 } 1811 1812 /* 1813 * Memory management routines. 1814 * uhci_alloc_std allocates TDs 1815 * uhci_alloc_sqh allocates QHs 1816 * These two routines do their own free list management, 1817 * partly for speed, partly because allocating DMAable memory 1818 * has page size granularity so much memory would be wasted if 1819 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1820 */ 1821 1822 uhci_soft_td_t * 1823 uhci_alloc_std(uhci_softc_t *sc) 1824 { 1825 uhci_soft_td_t *std; 1826 usbd_status err; 1827 int i, offs; 1828 usb_dma_t dma; 1829 1830 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1831 1832 mutex_enter(&sc->sc_lock); 1833 if (sc->sc_freetds == NULL) { 1834 DPRINTFN(2, "allocating chunk", 0, 0, 0, 0); 1835 mutex_exit(&sc->sc_lock); 1836 1837 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1838 UHCI_TD_ALIGN, &dma); 1839 if (err) 1840 return NULL; 1841 1842 mutex_enter(&sc->sc_lock); 1843 for (i = 0; i < UHCI_STD_CHUNK; i++) { 1844 offs = i * UHCI_STD_SIZE; 1845 std = KERNADDR(&dma, offs); 1846 std->physaddr = DMAADDR(&dma, offs); 1847 std->dma = dma; 1848 std->offs = offs; 1849 std->link.std = sc->sc_freetds; 1850 sc->sc_freetds = std; 1851 } 1852 } 1853 std = sc->sc_freetds; 1854 sc->sc_freetds = std->link.std; 1855 mutex_exit(&sc->sc_lock); 1856 1857 memset(&std->td, 0, sizeof(uhci_td_t)); 1858 1859 return std; 1860 } 1861 1862 #define TD_IS_FREE 0x12345678 1863 1864 void 1865 uhci_free_std_locked(uhci_softc_t *sc, uhci_soft_td_t *std) 1866 { 1867 KASSERT(mutex_owned(&sc->sc_lock)); 1868 1869 #ifdef DIAGNOSTIC 1870 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1871 printf("%s: freeing free TD %p\n", __func__, std); 1872 return; 1873 } 1874 std->td.td_token = htole32(TD_IS_FREE); 1875 #endif 1876 1877 std->link.std = sc->sc_freetds; 1878 sc->sc_freetds = std; 1879 } 1880 1881 void 1882 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1883 { 1884 mutex_enter(&sc->sc_lock); 1885 uhci_free_std_locked(sc, std); 1886 mutex_exit(&sc->sc_lock); 1887 } 1888 1889 uhci_soft_qh_t * 1890 uhci_alloc_sqh(uhci_softc_t *sc) 1891 { 1892 uhci_soft_qh_t *sqh; 1893 usbd_status err; 1894 int i, offs; 1895 usb_dma_t dma; 1896 1897 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1898 1899 mutex_enter(&sc->sc_lock); 1900 if (sc->sc_freeqhs == NULL) { 1901 DPRINTFN(2, "allocating chunk", 0, 0, 0, 0); 1902 mutex_exit(&sc->sc_lock); 1903 1904 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1905 UHCI_QH_ALIGN, &dma); 1906 if (err) 1907 return NULL; 1908 1909 mutex_enter(&sc->sc_lock); 1910 for (i = 0; i < UHCI_SQH_CHUNK; i++) { 1911 offs = i * UHCI_SQH_SIZE; 1912 sqh = KERNADDR(&dma, offs); 1913 sqh->physaddr = DMAADDR(&dma, offs); 1914 sqh->dma = dma; 1915 sqh->offs = offs; 1916 sqh->hlink = sc->sc_freeqhs; 1917 sc->sc_freeqhs = sqh; 1918 } 1919 } 1920 sqh = sc->sc_freeqhs; 1921 sc->sc_freeqhs = sqh->hlink; 1922 mutex_exit(&sc->sc_lock); 1923 1924 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1925 1926 return sqh; 1927 } 1928 1929 void 1930 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1931 { 1932 KASSERT(mutex_owned(&sc->sc_lock)); 1933 1934 sqh->hlink = sc->sc_freeqhs; 1935 sc->sc_freeqhs = sqh; 1936 } 1937 1938 #if 0 1939 void 1940 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1941 uhci_soft_td_t *stdend) 1942 { 1943 uhci_soft_td_t *p; 1944 uint32_t td_link; 1945 1946 /* 1947 * to avoid race condition with the controller which may be looking 1948 * at this chain, we need to first invalidate all links, and 1949 * then wait for the controller to move to another queue 1950 */ 1951 for (p = std; p != stdend; p = p->link.std) { 1952 usb_syncmem(&p->dma, 1953 p->offs + offsetof(uhci_td_t, td_link), 1954 sizeof(p->td.td_link), 1955 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1956 td_link = le32toh(p->td.td_link); 1957 usb_syncmem(&p->dma, 1958 p->offs + offsetof(uhci_td_t, td_link), 1959 sizeof(p->td.td_link), 1960 BUS_DMASYNC_PREREAD); 1961 if ((td_link & UHCI_PTR_T) == 0) { 1962 p->td.td_link = htole32(UHCI_PTR_T); 1963 usb_syncmem(&p->dma, 1964 p->offs + offsetof(uhci_td_t, td_link), 1965 sizeof(p->td.td_link), 1966 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1967 } 1968 } 1969 delay(UHCI_QH_REMOVE_DELAY); 1970 1971 for (; std != stdend; std = p) { 1972 p = std->link.std; 1973 uhci_free_std(sc, std); 1974 } 1975 } 1976 #endif 1977 1978 int 1979 uhci_alloc_std_chain(uhci_softc_t *sc, struct usbd_xfer *xfer, int len, 1980 int rd, uhci_soft_td_t **sp) 1981 { 1982 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 1983 uint16_t flags = xfer->ux_flags; 1984 uhci_soft_td_t *p; 1985 1986 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1987 1988 DPRINTFN(8, "xfer=%#jx pipe=%#jx", (uintptr_t)xfer, 1989 (uintptr_t)xfer->ux_pipe, 0, 0); 1990 1991 ASSERT_SLEEPABLE(); 1992 KASSERT(sp); 1993 1994 int maxp = UGETW(xfer->ux_pipe->up_endpoint->ue_edesc->wMaxPacketSize); 1995 if (maxp == 0) { 1996 printf("%s: maxp=0\n", __func__); 1997 return EINVAL; 1998 } 1999 size_t ntd = (len + maxp - 1) / maxp; 2000 if (!rd && (flags & USBD_FORCE_SHORT_XFER)) { 2001 ntd++; 2002 } 2003 DPRINTFN(10, "maxp=%jd ntd=%jd", maxp, ntd, 0, 0); 2004 2005 uxfer->ux_stds = NULL; 2006 uxfer->ux_nstd = ntd; 2007 if (ntd == 0) { 2008 *sp = NULL; 2009 DPRINTF("ntd=0", 0, 0, 0, 0); 2010 return 0; 2011 } 2012 uxfer->ux_stds = kmem_alloc(sizeof(uhci_soft_td_t *) * ntd, 2013 KM_SLEEP); 2014 2015 for (int i = 0; i < ntd; i++) { 2016 p = uhci_alloc_std(sc); 2017 if (p == NULL) { 2018 if (i != 0) { 2019 uxfer->ux_nstd = i; 2020 uhci_free_stds(sc, uxfer); 2021 } 2022 kmem_free(uxfer->ux_stds, 2023 sizeof(uhci_soft_td_t *) * ntd); 2024 return ENOMEM; 2025 } 2026 uxfer->ux_stds[i] = p; 2027 } 2028 2029 *sp = uxfer->ux_stds[0]; 2030 2031 return 0; 2032 } 2033 2034 Static void 2035 uhci_free_stds(uhci_softc_t *sc, struct uhci_xfer *ux) 2036 { 2037 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2038 2039 DPRINTFN(8, "ux=%#jx", (uintptr_t)ux, 0, 0, 0); 2040 2041 mutex_enter(&sc->sc_lock); 2042 for (size_t i = 0; i < ux->ux_nstd; i++) { 2043 uhci_soft_td_t *std = ux->ux_stds[i]; 2044 #ifdef DIAGNOSTIC 2045 if (le32toh(std->td.td_token) == TD_IS_FREE) { 2046 printf("%s: freeing free TD %p\n", __func__, std); 2047 return; 2048 } 2049 std->td.td_token = htole32(TD_IS_FREE); 2050 #endif 2051 ux->ux_stds[i]->link.std = sc->sc_freetds; 2052 sc->sc_freetds = std; 2053 } 2054 mutex_exit(&sc->sc_lock); 2055 } 2056 2057 2058 Static void 2059 uhci_reset_std_chain(uhci_softc_t *sc, struct usbd_xfer *xfer, 2060 int length, int isread, int *toggle, uhci_soft_td_t **lstd) 2061 { 2062 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2063 struct usbd_pipe *pipe = xfer->ux_pipe; 2064 usb_dma_t *dma = &xfer->ux_dmabuf; 2065 uint16_t flags = xfer->ux_flags; 2066 uhci_soft_td_t *std, *prev; 2067 int len = length; 2068 int tog = *toggle; 2069 int maxp; 2070 uint32_t status; 2071 size_t i; 2072 2073 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2074 DPRINTFN(8, "xfer=%#jx len %jd isread %jd toggle %jd", (uintptr_t)xfer, 2075 len, isread, *toggle); 2076 2077 KASSERT(len != 0 || (!isread && (flags & USBD_FORCE_SHORT_XFER))); 2078 2079 maxp = UGETW(pipe->up_endpoint->ue_edesc->wMaxPacketSize); 2080 KASSERT(maxp != 0); 2081 2082 int addr = xfer->ux_pipe->up_dev->ud_addr; 2083 int endpt = xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress; 2084 2085 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 2086 if (pipe->up_dev->ud_speed == USB_SPEED_LOW) 2087 status |= UHCI_TD_LS; 2088 if (flags & USBD_SHORT_XFER_OK) 2089 status |= UHCI_TD_SPD; 2090 usb_syncmem(dma, 0, len, 2091 isread ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2092 std = prev = NULL; 2093 for (i = 0; len != 0 && i < uxfer->ux_nstd; i++, prev = std) { 2094 int l = len; 2095 std = uxfer->ux_stds[i]; 2096 if (l > maxp) 2097 l = maxp; 2098 2099 if (prev) { 2100 prev->link.std = std; 2101 prev->td.td_link = htole32( 2102 std->physaddr | UHCI_PTR_VF | UHCI_PTR_TD 2103 ); 2104 usb_syncmem(&prev->dma, prev->offs, sizeof(prev->td), 2105 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2106 } 2107 2108 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2109 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2110 2111 std->td.td_link = htole32(UHCI_PTR_T | UHCI_PTR_VF | UHCI_PTR_TD); 2112 std->td.td_status = htole32(status); 2113 std->td.td_token = htole32( 2114 UHCI_TD_SET_ENDPT(UE_GET_ADDR(endpt)) | 2115 UHCI_TD_SET_DEVADDR(addr) | 2116 UHCI_TD_SET_PID(isread ? UHCI_TD_PID_IN : UHCI_TD_PID_OUT) | 2117 UHCI_TD_SET_DT(tog) | 2118 UHCI_TD_SET_MAXLEN(l) 2119 ); 2120 std->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 2121 2122 std->link.std = NULL; 2123 2124 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2125 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2126 tog ^= 1; 2127 2128 len -= l; 2129 } 2130 KASSERTMSG(len == 0, "xfer %p alen %d len %d mps %d ux_nqtd %zu i %zu", 2131 xfer, length, len, maxp, uxfer->ux_nstd, i); 2132 2133 if (!isread && 2134 (flags & USBD_FORCE_SHORT_XFER) && 2135 length % maxp == 0) { 2136 /* Force a 0 length transfer at the end. */ 2137 KASSERTMSG(i < uxfer->ux_nstd, "i=%zu nstd=%zu", i, 2138 uxfer->ux_nstd); 2139 std = uxfer->ux_stds[i++]; 2140 2141 std->td.td_link = htole32(UHCI_PTR_T | UHCI_PTR_VF | UHCI_PTR_TD); 2142 std->td.td_status = htole32(status); 2143 std->td.td_token = htole32( 2144 UHCI_TD_SET_ENDPT(UE_GET_ADDR(endpt)) | 2145 UHCI_TD_SET_DEVADDR(addr) | 2146 UHCI_TD_SET_PID(UHCI_TD_PID_OUT) | 2147 UHCI_TD_SET_DT(tog) | 2148 UHCI_TD_SET_MAXLEN(0) 2149 ); 2150 std->td.td_buffer = 0; 2151 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2152 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2153 2154 std->link.std = NULL; 2155 if (prev) { 2156 prev->link.std = std; 2157 prev->td.td_link = htole32( 2158 std->physaddr | UHCI_PTR_VF | UHCI_PTR_TD 2159 ); 2160 usb_syncmem(&prev->dma, prev->offs, sizeof(prev->td), 2161 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2162 } 2163 tog ^= 1; 2164 } 2165 *lstd = std; 2166 *toggle = tog; 2167 } 2168 2169 void 2170 uhci_device_clear_toggle(struct usbd_pipe *pipe) 2171 { 2172 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2173 upipe->nexttoggle = 0; 2174 } 2175 2176 void 2177 uhci_noop(struct usbd_pipe *pipe) 2178 { 2179 } 2180 2181 int 2182 uhci_device_bulk_init(struct usbd_xfer *xfer) 2183 { 2184 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2185 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2186 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 2187 int endpt = ed->bEndpointAddress; 2188 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2189 int len = xfer->ux_bufsize; 2190 int err = 0; 2191 2192 2193 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2194 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, len, 2195 xfer->ux_flags, 0); 2196 2197 if (sc->sc_dying) 2198 return USBD_IOERROR; 2199 2200 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2201 2202 uxfer->ux_type = UX_BULK; 2203 err = uhci_alloc_std_chain(sc, xfer, len, isread, &uxfer->ux_stdstart); 2204 if (err) 2205 return err; 2206 2207 #ifdef UHCI_DEBUG 2208 if (uhcidebug >= 10) { 2209 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2210 uhci_dump_tds(uxfer->ux_stdstart); 2211 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2212 } 2213 #endif 2214 2215 return 0; 2216 } 2217 2218 Static void 2219 uhci_device_bulk_fini(struct usbd_xfer *xfer) 2220 { 2221 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2222 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2223 2224 KASSERT(ux->ux_type == UX_BULK); 2225 2226 if (ux->ux_nstd) { 2227 uhci_free_stds(sc, ux); 2228 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2229 } 2230 } 2231 2232 usbd_status 2233 uhci_device_bulk_transfer(struct usbd_xfer *xfer) 2234 { 2235 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2236 usbd_status err; 2237 2238 /* Insert last in queue. */ 2239 mutex_enter(&sc->sc_lock); 2240 err = usb_insert_transfer(xfer); 2241 mutex_exit(&sc->sc_lock); 2242 if (err) 2243 return err; 2244 2245 /* 2246 * Pipe isn't running (otherwise err would be USBD_INPROG), 2247 * so start it first. 2248 */ 2249 return uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2250 } 2251 2252 usbd_status 2253 uhci_device_bulk_start(struct usbd_xfer *xfer) 2254 { 2255 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2256 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2257 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2258 uhci_soft_td_t *data, *dataend; 2259 uhci_soft_qh_t *sqh; 2260 const bool polling = sc->sc_bus.ub_usepolling; 2261 int len; 2262 int endpt; 2263 int isread; 2264 2265 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2266 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2267 xfer->ux_length, xfer->ux_flags, 0); 2268 2269 if (sc->sc_dying) 2270 return USBD_IOERROR; 2271 2272 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2273 KASSERT(xfer->ux_length <= xfer->ux_bufsize); 2274 2275 len = xfer->ux_length; 2276 endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2277 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2278 sqh = upipe->bulk.sqh; 2279 2280 /* Take lock here to protect nexttoggle */ 2281 if (!polling) 2282 mutex_enter(&sc->sc_lock); 2283 2284 uhci_reset_std_chain(sc, xfer, len, isread, &upipe->nexttoggle, 2285 &dataend); 2286 2287 data = ux->ux_stdstart; 2288 ux->ux_stdend = dataend; 2289 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2290 usb_syncmem(&dataend->dma, 2291 dataend->offs + offsetof(uhci_td_t, td_status), 2292 sizeof(dataend->td.td_status), 2293 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2294 2295 #ifdef UHCI_DEBUG 2296 if (uhcidebug >= 10) { 2297 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2298 DPRINTFN(10, "before transfer", 0, 0, 0, 0); 2299 uhci_dump_tds(data); 2300 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2301 } 2302 #endif 2303 2304 KASSERT(ux->ux_isdone); 2305 #ifdef DIAGNOSTIC 2306 ux->ux_isdone = false; 2307 #endif 2308 2309 sqh->elink = data; 2310 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2311 /* uhci_add_bulk() will do usb_syncmem(sqh) */ 2312 2313 uhci_add_bulk(sc, sqh); 2314 uhci_add_intr_list(sc, ux); 2315 2316 if (xfer->ux_timeout && !polling) { 2317 callout_reset(&xfer->ux_callout, mstohz(xfer->ux_timeout), 2318 uhci_timeout, xfer); 2319 } 2320 xfer->ux_status = USBD_IN_PROGRESS; 2321 if (!polling) 2322 mutex_exit(&sc->sc_lock); 2323 2324 return USBD_IN_PROGRESS; 2325 } 2326 2327 /* Abort a device bulk request. */ 2328 void 2329 uhci_device_bulk_abort(struct usbd_xfer *xfer) 2330 { 2331 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2332 2333 KASSERT(mutex_owned(&sc->sc_lock)); 2334 2335 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2336 2337 uhci_abort_xfer(xfer, USBD_CANCELLED); 2338 } 2339 2340 /* 2341 * Cancel or timeout a device request. We have two cases to deal with 2342 * 2343 * 1) A driver wants to stop scheduled or inflight transfers 2344 * 2) A transfer has timed out 2345 * 2346 * It's impossible to guarantee that the requested transfer will not 2347 * have (partially) happened since the hardware runs concurrently. 2348 * 2349 * Transfer state is protected by the bus lock and we set the transfer status 2350 * as soon as either of the above happens (with bus lock held). 2351 * 2352 * To allow the hardware time to notice we simply wait. 2353 */ 2354 void 2355 uhci_abort_xfer(struct usbd_xfer *xfer, usbd_status status) 2356 { 2357 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2358 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2359 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2360 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2361 uhci_soft_td_t *std; 2362 2363 KASSERTMSG((status == USBD_CANCELLED || status == USBD_TIMEOUT), 2364 "invalid status for abort: %d", (int)status); 2365 2366 DPRINTFN(1,"xfer=%#jx, status=%jd", (uintptr_t)xfer, status, 0, 0); 2367 2368 KASSERT(mutex_owned(&sc->sc_lock)); 2369 ASSERT_SLEEPABLE(); 2370 2371 if (status == USBD_CANCELLED) { 2372 /* 2373 * We are synchronously aborting. Try to stop the 2374 * callout and task, but if we can't, wait for them to 2375 * complete. 2376 */ 2377 callout_halt(&xfer->ux_callout, &sc->sc_lock); 2378 usb_rem_task_wait(xfer->ux_pipe->up_dev, &xfer->ux_aborttask, 2379 USB_TASKQ_HC, &sc->sc_lock); 2380 } else { 2381 /* Otherwise, we are timing out. */ 2382 KASSERT(status == USBD_TIMEOUT); 2383 } 2384 2385 /* 2386 * The xfer cannot have been cancelled already. It is the 2387 * responsibility of the caller of usbd_abort_pipe not to try 2388 * to abort a pipe multiple times, whether concurrently or 2389 * sequentially. 2390 */ 2391 KASSERT(xfer->ux_status != USBD_CANCELLED); 2392 2393 /* Only the timeout, which runs only once, can time it out. */ 2394 KASSERT(xfer->ux_status != USBD_TIMEOUT); 2395 2396 /* If anyone else beat us, we're done. */ 2397 if (xfer->ux_status != USBD_IN_PROGRESS) 2398 return; 2399 2400 /* We beat everyone else. Claim the status. */ 2401 xfer->ux_status = status; 2402 2403 /* 2404 * If we're dying, skip the hardware action and just notify the 2405 * software that we're done. 2406 */ 2407 if (sc->sc_dying) { 2408 DPRINTFN(4, "xfer %#jx dying %ju", (uintptr_t)xfer, 2409 xfer->ux_status, 0, 0); 2410 goto dying; 2411 } 2412 2413 /* 2414 * HC Step 1: Make interrupt routine and hardware ignore xfer. 2415 */ 2416 uhci_del_intr_list(sc, ux); 2417 2418 DPRINTF("stop ux=%#jx", (uintptr_t)ux, 0, 0, 0); 2419 for (std = ux->ux_stdstart; std != NULL; std = std->link.std) { 2420 usb_syncmem(&std->dma, 2421 std->offs + offsetof(uhci_td_t, td_status), 2422 sizeof(std->td.td_status), 2423 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2424 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2425 usb_syncmem(&std->dma, 2426 std->offs + offsetof(uhci_td_t, td_status), 2427 sizeof(std->td.td_status), 2428 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2429 } 2430 2431 /* 2432 * HC Step 2: Wait until we know hardware has finished any possible 2433 * use of the xfer. 2434 */ 2435 /* Hardware finishes in 1ms */ 2436 usb_delay_ms_locked(upipe->pipe.up_dev->ud_bus, 2, &sc->sc_lock); 2437 2438 /* 2439 * HC Step 3: Notify completion to waiting xfers. 2440 */ 2441 dying: 2442 #ifdef DIAGNOSTIC 2443 ux->ux_isdone = true; 2444 #endif 2445 usb_transfer_complete(xfer); 2446 DPRINTFN(14, "end", 0, 0, 0, 0); 2447 2448 KASSERT(mutex_owned(&sc->sc_lock)); 2449 } 2450 2451 /* Close a device bulk pipe. */ 2452 void 2453 uhci_device_bulk_close(struct usbd_pipe *pipe) 2454 { 2455 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2456 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2457 2458 KASSERT(mutex_owned(&sc->sc_lock)); 2459 2460 uhci_free_sqh(sc, upipe->bulk.sqh); 2461 2462 pipe->up_endpoint->ue_toggle = upipe->nexttoggle; 2463 } 2464 2465 int 2466 uhci_device_ctrl_init(struct usbd_xfer *xfer) 2467 { 2468 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2469 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2470 usb_device_request_t *req = &xfer->ux_request; 2471 struct usbd_device *dev = upipe->pipe.up_dev; 2472 uhci_softc_t *sc = dev->ud_bus->ub_hcpriv; 2473 uhci_soft_td_t *data = NULL; 2474 int len; 2475 usbd_status err; 2476 int isread; 2477 2478 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2479 DPRINTFN(3, "xfer=%#jx len=%jd, addr=%jd, endpt=%jd", 2480 (uintptr_t)xfer, xfer->ux_bufsize, dev->ud_addr, 2481 upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress); 2482 2483 isread = req->bmRequestType & UT_READ; 2484 len = xfer->ux_bufsize; 2485 2486 uxfer->ux_type = UX_CTRL; 2487 /* Set up data transaction */ 2488 if (len != 0) { 2489 err = uhci_alloc_std_chain(sc, xfer, len, isread, &data); 2490 if (err) 2491 return err; 2492 } 2493 /* Set up interrupt info. */ 2494 uxfer->ux_setup = upipe->ctrl.setup; 2495 uxfer->ux_stat = upipe->ctrl.stat; 2496 uxfer->ux_data = data; 2497 2498 return 0; 2499 } 2500 2501 Static void 2502 uhci_device_ctrl_fini(struct usbd_xfer *xfer) 2503 { 2504 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2505 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2506 2507 KASSERT(ux->ux_type == UX_CTRL); 2508 2509 if (ux->ux_nstd) { 2510 uhci_free_stds(sc, ux); 2511 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2512 } 2513 } 2514 2515 usbd_status 2516 uhci_device_ctrl_transfer(struct usbd_xfer *xfer) 2517 { 2518 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2519 usbd_status err; 2520 2521 /* Insert last in queue. */ 2522 mutex_enter(&sc->sc_lock); 2523 err = usb_insert_transfer(xfer); 2524 mutex_exit(&sc->sc_lock); 2525 if (err) 2526 return err; 2527 2528 /* 2529 * Pipe isn't running (otherwise err would be USBD_INPROG), 2530 * so start it first. 2531 */ 2532 return uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2533 } 2534 2535 usbd_status 2536 uhci_device_ctrl_start(struct usbd_xfer *xfer) 2537 { 2538 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2539 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2540 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2541 usb_device_request_t *req = &xfer->ux_request; 2542 struct usbd_device *dev = upipe->pipe.up_dev; 2543 int addr = dev->ud_addr; 2544 int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2545 uhci_soft_td_t *setup, *stat, *next, *dataend; 2546 uhci_soft_qh_t *sqh; 2547 const bool polling = sc->sc_bus.ub_usepolling; 2548 int len; 2549 int isread; 2550 2551 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2552 2553 if (sc->sc_dying) 2554 return USBD_IOERROR; 2555 2556 KASSERT(xfer->ux_rqflags & URQ_REQUEST); 2557 2558 DPRINTFN(3, "type=0x%02jx, request=0x%02jx, " 2559 "wValue=0x%04jx, wIndex=0x%04jx", 2560 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2561 UGETW(req->wIndex)); 2562 DPRINTFN(3, "len=%jd, addr=%jd, endpt=%jd", 2563 UGETW(req->wLength), dev->ud_addr, endpt, 0); 2564 2565 isread = req->bmRequestType & UT_READ; 2566 len = UGETW(req->wLength); 2567 2568 setup = upipe->ctrl.setup; 2569 stat = upipe->ctrl.stat; 2570 sqh = upipe->ctrl.sqh; 2571 2572 memcpy(KERNADDR(&upipe->ctrl.reqdma, 0), req, sizeof(*req)); 2573 usb_syncmem(&upipe->ctrl.reqdma, 0, sizeof(*req), BUS_DMASYNC_PREWRITE); 2574 2575 if (!polling) 2576 mutex_enter(&sc->sc_lock); 2577 2578 /* Set up data transaction */ 2579 if (len != 0) { 2580 upipe->nexttoggle = 1; 2581 next = uxfer->ux_data; 2582 uhci_reset_std_chain(sc, xfer, len, isread, 2583 &upipe->nexttoggle, &dataend); 2584 dataend->link.std = stat; 2585 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_TD); 2586 usb_syncmem(&dataend->dma, 2587 dataend->offs + offsetof(uhci_td_t, td_link), 2588 sizeof(dataend->td.td_link), 2589 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2590 } else { 2591 next = stat; 2592 } 2593 2594 const uint32_t status = UHCI_TD_ZERO_ACTLEN( 2595 UHCI_TD_SET_ERRCNT(3) | 2596 UHCI_TD_ACTIVE | 2597 (dev->ud_speed == USB_SPEED_LOW ? UHCI_TD_LS : 0) 2598 ); 2599 setup->link.std = next; 2600 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_TD); 2601 setup->td.td_status = htole32(status); 2602 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof(*req), endpt, addr)); 2603 setup->td.td_buffer = htole32(DMAADDR(&upipe->ctrl.reqdma, 0)); 2604 2605 usb_syncmem(&setup->dma, setup->offs, sizeof(setup->td), 2606 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2607 2608 stat->link.std = NULL; 2609 stat->td.td_link = htole32(UHCI_PTR_T); 2610 stat->td.td_status = htole32(status | UHCI_TD_IOC); 2611 stat->td.td_token = 2612 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2613 UHCI_TD_IN (0, endpt, addr, 1)); 2614 stat->td.td_buffer = htole32(0); 2615 usb_syncmem(&stat->dma, stat->offs, sizeof(stat->td), 2616 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2617 2618 #ifdef UHCI_DEBUG 2619 if (uhcidebug >= 10) { 2620 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2621 DPRINTF("before transfer", 0, 0, 0, 0); 2622 uhci_dump_tds(setup); 2623 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2624 } 2625 #endif 2626 2627 /* Set up interrupt info. */ 2628 uxfer->ux_setup = setup; 2629 uxfer->ux_stat = stat; 2630 KASSERT(uxfer->ux_isdone); 2631 #ifdef DIAGNOSTIC 2632 uxfer->ux_isdone = false; 2633 #endif 2634 2635 sqh->elink = setup; 2636 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2637 /* uhci_add_?s_ctrl() will do usb_syncmem(sqh) */ 2638 2639 if (dev->ud_speed == USB_SPEED_LOW) 2640 uhci_add_ls_ctrl(sc, sqh); 2641 else 2642 uhci_add_hs_ctrl(sc, sqh); 2643 uhci_add_intr_list(sc, uxfer); 2644 #ifdef UHCI_DEBUG 2645 if (uhcidebug >= 12) { 2646 uhci_soft_td_t *std; 2647 uhci_soft_qh_t *xqh; 2648 uhci_soft_qh_t *sxqh; 2649 int maxqh = 0; 2650 uhci_physaddr_t link; 2651 DPRINTFN(12, "--- dump start ---", 0, 0, 0, 0); 2652 DPRINTFN(12, "follow from [0]", 0, 0, 0, 0); 2653 for (std = sc->sc_vframes[0].htd, link = 0; 2654 (link & UHCI_PTR_QH) == 0; 2655 std = std->link.std) { 2656 link = le32toh(std->td.td_link); 2657 uhci_dump_td(std); 2658 } 2659 sxqh = (uhci_soft_qh_t *)std; 2660 uhci_dump_qh(sxqh); 2661 for (xqh = sxqh; 2662 xqh != NULL; 2663 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2664 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2665 uhci_dump_qh(xqh); 2666 } 2667 DPRINTFN(12, "Enqueued QH:", 0, 0, 0, 0); 2668 uhci_dump_qh(sqh); 2669 uhci_dump_tds(sqh->elink); 2670 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2671 } 2672 #endif 2673 if (xfer->ux_timeout && !polling) { 2674 callout_reset(&xfer->ux_callout, mstohz(xfer->ux_timeout), 2675 uhci_timeout, xfer); 2676 } 2677 xfer->ux_status = USBD_IN_PROGRESS; 2678 if (!polling) 2679 mutex_exit(&sc->sc_lock); 2680 2681 return USBD_IN_PROGRESS; 2682 } 2683 2684 int 2685 uhci_device_intr_init(struct usbd_xfer *xfer) 2686 { 2687 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2688 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2689 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 2690 int endpt = ed->bEndpointAddress; 2691 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2692 int len = xfer->ux_bufsize; 2693 int err; 2694 2695 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2696 2697 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2698 xfer->ux_length, xfer->ux_flags, 0); 2699 2700 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2701 KASSERT(len != 0); 2702 2703 ux->ux_type = UX_INTR; 2704 ux->ux_nstd = 0; 2705 err = uhci_alloc_std_chain(sc, xfer, len, isread, &ux->ux_stdstart); 2706 2707 return err; 2708 } 2709 2710 Static void 2711 uhci_device_intr_fini(struct usbd_xfer *xfer) 2712 { 2713 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2714 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2715 2716 KASSERT(ux->ux_type == UX_INTR); 2717 2718 if (ux->ux_nstd) { 2719 uhci_free_stds(sc, ux); 2720 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2721 } 2722 } 2723 2724 usbd_status 2725 uhci_device_intr_transfer(struct usbd_xfer *xfer) 2726 { 2727 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2728 usbd_status err; 2729 2730 /* Insert last in queue. */ 2731 mutex_enter(&sc->sc_lock); 2732 err = usb_insert_transfer(xfer); 2733 mutex_exit(&sc->sc_lock); 2734 if (err) 2735 return err; 2736 2737 /* 2738 * Pipe isn't running (otherwise err would be USBD_INPROG), 2739 * so start it first. 2740 */ 2741 return uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2742 } 2743 2744 usbd_status 2745 uhci_device_intr_start(struct usbd_xfer *xfer) 2746 { 2747 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2748 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2749 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2750 uhci_soft_td_t *data, *dataend; 2751 uhci_soft_qh_t *sqh; 2752 const bool polling = sc->sc_bus.ub_usepolling; 2753 int isread, endpt; 2754 int i; 2755 2756 if (sc->sc_dying) 2757 return USBD_IOERROR; 2758 2759 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2760 2761 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2762 xfer->ux_length, xfer->ux_flags, 0); 2763 2764 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2765 KASSERT(xfer->ux_length <= xfer->ux_bufsize); 2766 2767 endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2768 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2769 2770 data = ux->ux_stdstart; 2771 2772 KASSERT(ux->ux_isdone); 2773 #ifdef DIAGNOSTIC 2774 ux->ux_isdone = false; 2775 #endif 2776 2777 /* Take lock to protect nexttoggle */ 2778 if (!polling) 2779 mutex_enter(&sc->sc_lock); 2780 uhci_reset_std_chain(sc, xfer, xfer->ux_length, isread, 2781 &upipe->nexttoggle, &dataend); 2782 2783 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2784 usb_syncmem(&dataend->dma, 2785 dataend->offs + offsetof(uhci_td_t, td_status), 2786 sizeof(dataend->td.td_status), 2787 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2788 ux->ux_stdend = dataend; 2789 2790 #ifdef UHCI_DEBUG 2791 if (uhcidebug >= 10) { 2792 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2793 uhci_dump_tds(data); 2794 uhci_dump_qh(upipe->intr.qhs[0]); 2795 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2796 } 2797 #endif 2798 2799 DPRINTFN(10, "qhs[0]=%#jx", (uintptr_t)upipe->intr.qhs[0], 0, 0, 0); 2800 for (i = 0; i < upipe->intr.npoll; i++) { 2801 sqh = upipe->intr.qhs[i]; 2802 sqh->elink = data; 2803 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2804 usb_syncmem(&sqh->dma, 2805 sqh->offs + offsetof(uhci_qh_t, qh_elink), 2806 sizeof(sqh->qh.qh_elink), 2807 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2808 } 2809 uhci_add_intr_list(sc, ux); 2810 xfer->ux_status = USBD_IN_PROGRESS; 2811 if (!polling) 2812 mutex_exit(&sc->sc_lock); 2813 2814 #ifdef UHCI_DEBUG 2815 if (uhcidebug >= 10) { 2816 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2817 uhci_dump_tds(data); 2818 uhci_dump_qh(upipe->intr.qhs[0]); 2819 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2820 } 2821 #endif 2822 2823 return USBD_IN_PROGRESS; 2824 } 2825 2826 /* Abort a device control request. */ 2827 void 2828 uhci_device_ctrl_abort(struct usbd_xfer *xfer) 2829 { 2830 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2831 2832 KASSERT(mutex_owned(&sc->sc_lock)); 2833 2834 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2835 uhci_abort_xfer(xfer, USBD_CANCELLED); 2836 } 2837 2838 /* Close a device control pipe. */ 2839 void 2840 uhci_device_ctrl_close(struct usbd_pipe *pipe) 2841 { 2842 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2843 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2844 2845 uhci_free_sqh(sc, upipe->ctrl.sqh); 2846 uhci_free_std_locked(sc, upipe->ctrl.setup); 2847 uhci_free_std_locked(sc, upipe->ctrl.stat); 2848 2849 } 2850 2851 /* Abort a device interrupt request. */ 2852 void 2853 uhci_device_intr_abort(struct usbd_xfer *xfer) 2854 { 2855 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2856 2857 KASSERT(mutex_owned(&sc->sc_lock)); 2858 KASSERT(xfer->ux_pipe->up_intrxfer == xfer); 2859 2860 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2861 DPRINTF("xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 2862 2863 uhci_abort_xfer(xfer, USBD_CANCELLED); 2864 } 2865 2866 /* Close a device interrupt pipe. */ 2867 void 2868 uhci_device_intr_close(struct usbd_pipe *pipe) 2869 { 2870 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2871 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2872 int i, npoll; 2873 2874 KASSERT(mutex_owned(&sc->sc_lock)); 2875 2876 /* Unlink descriptors from controller data structures. */ 2877 npoll = upipe->intr.npoll; 2878 for (i = 0; i < npoll; i++) 2879 uhci_remove_intr(sc, upipe->intr.qhs[i]); 2880 2881 /* 2882 * We now have to wait for any activity on the physical 2883 * descriptors to stop. 2884 */ 2885 usb_delay_ms_locked(&sc->sc_bus, 2, &sc->sc_lock); 2886 2887 for (i = 0; i < npoll; i++) 2888 uhci_free_sqh(sc, upipe->intr.qhs[i]); 2889 kmem_free(upipe->intr.qhs, npoll * sizeof(uhci_soft_qh_t *)); 2890 } 2891 2892 int 2893 uhci_device_isoc_init(struct usbd_xfer *xfer) 2894 { 2895 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2896 2897 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2898 KASSERT(xfer->ux_nframes != 0); 2899 KASSERT(ux->ux_isdone); 2900 2901 ux->ux_type = UX_ISOC; 2902 return 0; 2903 } 2904 2905 Static void 2906 uhci_device_isoc_fini(struct usbd_xfer *xfer) 2907 { 2908 struct uhci_xfer *ux __diagused = UHCI_XFER2UXFER(xfer); 2909 2910 KASSERT(ux->ux_type == UX_ISOC); 2911 } 2912 2913 usbd_status 2914 uhci_device_isoc_transfer(struct usbd_xfer *xfer) 2915 { 2916 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2917 usbd_status err __diagused; 2918 2919 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2920 DPRINTFN(5, "xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 2921 2922 /* Put it on our queue, */ 2923 mutex_enter(&sc->sc_lock); 2924 err = usb_insert_transfer(xfer); 2925 mutex_exit(&sc->sc_lock); 2926 2927 KASSERT(err == USBD_NORMAL_COMPLETION); 2928 2929 /* insert into schedule, */ 2930 2931 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2932 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2933 struct isoc *isoc = &upipe->isoc; 2934 uhci_soft_td_t *std = NULL; 2935 uint32_t buf, len, status, offs; 2936 int i, next, nframes; 2937 int rd = UE_GET_DIR(upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN; 2938 2939 DPRINTFN(5, "used=%jd next=%jd xfer=%#jx nframes=%jd", 2940 isoc->inuse, isoc->next, (uintptr_t)xfer, xfer->ux_nframes); 2941 2942 if (sc->sc_dying) 2943 return USBD_IOERROR; 2944 2945 if (xfer->ux_status == USBD_IN_PROGRESS) { 2946 /* This request has already been entered into the frame list */ 2947 printf("%s: xfer=%p in frame list\n", __func__, xfer); 2948 /* XXX */ 2949 } 2950 2951 #ifdef DIAGNOSTIC 2952 if (isoc->inuse >= UHCI_VFRAMELIST_COUNT) 2953 printf("%s: overflow!\n", __func__); 2954 #endif 2955 2956 KASSERT(xfer->ux_nframes != 0); 2957 2958 mutex_enter(&sc->sc_lock); 2959 next = isoc->next; 2960 if (next == -1) { 2961 /* Not in use yet, schedule it a few frames ahead. */ 2962 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2963 DPRINTFN(2, "start next=%jd", next, 0, 0, 0); 2964 } 2965 2966 xfer->ux_status = USBD_IN_PROGRESS; 2967 ux->ux_curframe = next; 2968 2969 buf = DMAADDR(&xfer->ux_dmabuf, 0); 2970 offs = 0; 2971 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2972 UHCI_TD_ACTIVE | 2973 UHCI_TD_IOS); 2974 nframes = xfer->ux_nframes; 2975 for (i = 0; i < nframes; i++) { 2976 std = isoc->stds[next]; 2977 if (++next >= UHCI_VFRAMELIST_COUNT) 2978 next = 0; 2979 len = xfer->ux_frlengths[i]; 2980 std->td.td_buffer = htole32(buf); 2981 usb_syncmem(&xfer->ux_dmabuf, offs, len, 2982 rd ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2983 if (i == nframes - 1) 2984 status |= UHCI_TD_IOC; 2985 std->td.td_status = htole32(status); 2986 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2987 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2988 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2989 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2990 #ifdef UHCI_DEBUG 2991 if (uhcidebug >= 5) { 2992 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2993 DPRINTF("TD %jd", i, 0, 0, 0); 2994 uhci_dump_td(std); 2995 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2996 } 2997 #endif 2998 buf += len; 2999 offs += len; 3000 } 3001 isoc->next = next; 3002 isoc->inuse += xfer->ux_nframes; 3003 3004 /* Set up interrupt info. */ 3005 ux->ux_stdstart = std; 3006 ux->ux_stdend = std; 3007 3008 KASSERT(ux->ux_isdone); 3009 #ifdef DIAGNOSTIC 3010 ux->ux_isdone = false; 3011 #endif 3012 uhci_add_intr_list(sc, ux); 3013 3014 mutex_exit(&sc->sc_lock); 3015 3016 return USBD_IN_PROGRESS; 3017 } 3018 3019 void 3020 uhci_device_isoc_abort(struct usbd_xfer *xfer) 3021 { 3022 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3023 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3024 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 3025 uhci_soft_td_t **stds = upipe->isoc.stds; 3026 uhci_soft_td_t *std; 3027 int i, n, nframes, maxlen, len; 3028 3029 KASSERT(mutex_owned(&sc->sc_lock)); 3030 3031 /* Transfer is already done. */ 3032 if (xfer->ux_status != USBD_NOT_STARTED && 3033 xfer->ux_status != USBD_IN_PROGRESS) { 3034 return; 3035 } 3036 3037 /* Give xfer the requested abort code. */ 3038 xfer->ux_status = USBD_CANCELLED; 3039 3040 /* make hardware ignore it, */ 3041 nframes = xfer->ux_nframes; 3042 n = ux->ux_curframe; 3043 maxlen = 0; 3044 for (i = 0; i < nframes; i++) { 3045 std = stds[n]; 3046 usb_syncmem(&std->dma, 3047 std->offs + offsetof(uhci_td_t, td_status), 3048 sizeof(std->td.td_status), 3049 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3050 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 3051 usb_syncmem(&std->dma, 3052 std->offs + offsetof(uhci_td_t, td_status), 3053 sizeof(std->td.td_status), 3054 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3055 usb_syncmem(&std->dma, 3056 std->offs + offsetof(uhci_td_t, td_token), 3057 sizeof(std->td.td_token), 3058 BUS_DMASYNC_POSTWRITE); 3059 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 3060 if (len > maxlen) 3061 maxlen = len; 3062 if (++n >= UHCI_VFRAMELIST_COUNT) 3063 n = 0; 3064 } 3065 3066 /* and wait until we are sure the hardware has finished. */ 3067 delay(maxlen); 3068 3069 #ifdef DIAGNOSTIC 3070 ux->ux_isdone = true; 3071 #endif 3072 /* Remove from interrupt list. */ 3073 uhci_del_intr_list(sc, ux); 3074 3075 /* Run callback. */ 3076 usb_transfer_complete(xfer); 3077 3078 KASSERT(mutex_owned(&sc->sc_lock)); 3079 } 3080 3081 void 3082 uhci_device_isoc_close(struct usbd_pipe *pipe) 3083 { 3084 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3085 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3086 uhci_soft_td_t *std, *vstd; 3087 struct isoc *isoc; 3088 int i; 3089 3090 KASSERT(mutex_owned(&sc->sc_lock)); 3091 3092 /* 3093 * Make sure all TDs are marked as inactive. 3094 * Wait for completion. 3095 * Unschedule. 3096 * Deallocate. 3097 */ 3098 isoc = &upipe->isoc; 3099 3100 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3101 std = isoc->stds[i]; 3102 usb_syncmem(&std->dma, 3103 std->offs + offsetof(uhci_td_t, td_status), 3104 sizeof(std->td.td_status), 3105 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3106 std->td.td_status &= htole32(~UHCI_TD_ACTIVE); 3107 usb_syncmem(&std->dma, 3108 std->offs + offsetof(uhci_td_t, td_status), 3109 sizeof(std->td.td_status), 3110 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3111 } 3112 /* wait for completion */ 3113 usb_delay_ms_locked(&sc->sc_bus, 2, &sc->sc_lock); 3114 3115 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3116 std = isoc->stds[i]; 3117 for (vstd = sc->sc_vframes[i].htd; 3118 vstd != NULL && vstd->link.std != std; 3119 vstd = vstd->link.std) 3120 ; 3121 if (vstd == NULL) { 3122 /*panic*/ 3123 printf("%s: %p not found\n", __func__, std); 3124 mutex_exit(&sc->sc_lock); 3125 return; 3126 } 3127 vstd->link = std->link; 3128 usb_syncmem(&std->dma, 3129 std->offs + offsetof(uhci_td_t, td_link), 3130 sizeof(std->td.td_link), 3131 BUS_DMASYNC_POSTWRITE); 3132 vstd->td.td_link = std->td.td_link; 3133 usb_syncmem(&vstd->dma, 3134 vstd->offs + offsetof(uhci_td_t, td_link), 3135 sizeof(vstd->td.td_link), 3136 BUS_DMASYNC_PREWRITE); 3137 uhci_free_std_locked(sc, std); 3138 } 3139 3140 kmem_free(isoc->stds, UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *)); 3141 } 3142 3143 usbd_status 3144 uhci_setup_isoc(struct usbd_pipe *pipe) 3145 { 3146 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3147 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3148 int addr = upipe->pipe.up_dev->ud_addr; 3149 int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 3150 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 3151 uhci_soft_td_t *std, *vstd; 3152 uint32_t token; 3153 struct isoc *isoc; 3154 int i; 3155 3156 isoc = &upipe->isoc; 3157 3158 isoc->stds = kmem_alloc( 3159 UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *), KM_SLEEP); 3160 if (isoc->stds == NULL) 3161 return USBD_NOMEM; 3162 3163 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 3164 UHCI_TD_OUT(0, endpt, addr, 0); 3165 3166 /* Allocate the TDs and mark as inactive; */ 3167 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3168 std = uhci_alloc_std(sc); 3169 if (std == 0) 3170 goto bad; 3171 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 3172 std->td.td_token = htole32(token); 3173 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 3174 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3175 isoc->stds[i] = std; 3176 } 3177 3178 mutex_enter(&sc->sc_lock); 3179 3180 /* Insert TDs into schedule. */ 3181 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3182 std = isoc->stds[i]; 3183 vstd = sc->sc_vframes[i].htd; 3184 usb_syncmem(&vstd->dma, 3185 vstd->offs + offsetof(uhci_td_t, td_link), 3186 sizeof(vstd->td.td_link), 3187 BUS_DMASYNC_POSTWRITE); 3188 std->link = vstd->link; 3189 std->td.td_link = vstd->td.td_link; 3190 usb_syncmem(&std->dma, 3191 std->offs + offsetof(uhci_td_t, td_link), 3192 sizeof(std->td.td_link), 3193 BUS_DMASYNC_PREWRITE); 3194 vstd->link.std = std; 3195 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 3196 usb_syncmem(&vstd->dma, 3197 vstd->offs + offsetof(uhci_td_t, td_link), 3198 sizeof(vstd->td.td_link), 3199 BUS_DMASYNC_PREWRITE); 3200 } 3201 mutex_exit(&sc->sc_lock); 3202 3203 isoc->next = -1; 3204 isoc->inuse = 0; 3205 3206 return USBD_NORMAL_COMPLETION; 3207 3208 bad: 3209 while (--i >= 0) 3210 uhci_free_std(sc, isoc->stds[i]); 3211 kmem_free(isoc->stds, UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *)); 3212 return USBD_NOMEM; 3213 } 3214 3215 void 3216 uhci_device_isoc_done(struct usbd_xfer *xfer) 3217 { 3218 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3219 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 3220 int i, offs; 3221 int rd = UE_GET_DIR(upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN; 3222 3223 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3224 DPRINTFN(4, "length=%jd, ux_state=0x%08jx", 3225 xfer->ux_actlen, xfer->ux_state, 0, 0); 3226 3227 #ifdef DIAGNOSTIC 3228 if (ux->ux_stdend == NULL) { 3229 printf("%s: xfer=%p stdend==NULL\n", __func__, xfer); 3230 #ifdef UHCI_DEBUG 3231 DPRINTF("--- dump start ---", 0, 0, 0, 0); 3232 uhci_dump_ii(ux); 3233 DPRINTF("--- dump end ---", 0, 0, 0, 0); 3234 #endif 3235 return; 3236 } 3237 #endif 3238 3239 /* Turn off the interrupt since it is active even if the TD is not. */ 3240 usb_syncmem(&ux->ux_stdend->dma, 3241 ux->ux_stdend->offs + offsetof(uhci_td_t, td_status), 3242 sizeof(ux->ux_stdend->td.td_status), 3243 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3244 ux->ux_stdend->td.td_status &= htole32(~UHCI_TD_IOC); 3245 usb_syncmem(&ux->ux_stdend->dma, 3246 ux->ux_stdend->offs + offsetof(uhci_td_t, td_status), 3247 sizeof(ux->ux_stdend->td.td_status), 3248 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3249 3250 offs = 0; 3251 for (i = 0; i < xfer->ux_nframes; i++) { 3252 usb_syncmem(&xfer->ux_dmabuf, offs, xfer->ux_frlengths[i], 3253 rd ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3254 offs += xfer->ux_frlengths[i]; 3255 } 3256 } 3257 3258 void 3259 uhci_device_intr_done(struct usbd_xfer *xfer) 3260 { 3261 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 3262 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3263 uhci_soft_qh_t *sqh; 3264 int i, npoll; 3265 3266 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3267 DPRINTFN(5, "length=%jd", xfer->ux_actlen, 0, 0, 0); 3268 3269 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 3270 3271 npoll = upipe->intr.npoll; 3272 for (i = 0; i < npoll; i++) { 3273 sqh = upipe->intr.qhs[i]; 3274 sqh->elink = NULL; 3275 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3276 usb_syncmem(&sqh->dma, 3277 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3278 sizeof(sqh->qh.qh_elink), 3279 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3280 } 3281 const int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 3282 const bool isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3283 usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length, 3284 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3285 } 3286 3287 /* Deallocate request data structures */ 3288 void 3289 uhci_device_ctrl_done(struct usbd_xfer *xfer) 3290 { 3291 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3292 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3293 int len = UGETW(xfer->ux_request.wLength); 3294 int isread = (xfer->ux_request.bmRequestType & UT_READ); 3295 3296 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 3297 3298 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3299 3300 KASSERT(xfer->ux_rqflags & URQ_REQUEST); 3301 3302 /* XXXNH move to uhci_idone??? */ 3303 if (upipe->pipe.up_dev->ud_speed == USB_SPEED_LOW) 3304 uhci_remove_ls_ctrl(sc, upipe->ctrl.sqh); 3305 else 3306 uhci_remove_hs_ctrl(sc, upipe->ctrl.sqh); 3307 3308 if (len) { 3309 usb_syncmem(&xfer->ux_dmabuf, 0, len, 3310 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3311 } 3312 usb_syncmem(&upipe->ctrl.reqdma, 0, 3313 sizeof(usb_device_request_t), BUS_DMASYNC_POSTWRITE); 3314 3315 DPRINTF("length=%jd", xfer->ux_actlen, 0, 0, 0); 3316 } 3317 3318 /* Deallocate request data structures */ 3319 void 3320 uhci_device_bulk_done(struct usbd_xfer *xfer) 3321 { 3322 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3323 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3324 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 3325 int endpt = ed->bEndpointAddress; 3326 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3327 3328 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3329 DPRINTFN(5, "xfer=%#jx sc=%#jx upipe=%#jx", (uintptr_t)xfer, 3330 (uintptr_t)sc, (uintptr_t)upipe, 0); 3331 3332 KASSERT(mutex_owned(&sc->sc_lock)); 3333 3334 uhci_remove_bulk(sc, upipe->bulk.sqh); 3335 3336 if (xfer->ux_length) { 3337 usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length, 3338 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3339 } 3340 3341 DPRINTFN(5, "length=%jd", xfer->ux_actlen, 0, 0, 0); 3342 } 3343 3344 /* Add interrupt QH, called with vflock. */ 3345 void 3346 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3347 { 3348 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3349 uhci_soft_qh_t *eqh; 3350 3351 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3352 DPRINTFN(4, "n=%jd sqh=%#jx", sqh->pos, (uintptr_t)sqh, 0, 0); 3353 3354 eqh = vf->eqh; 3355 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 3356 sizeof(eqh->qh.qh_hlink), 3357 BUS_DMASYNC_POSTWRITE); 3358 sqh->hlink = eqh->hlink; 3359 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 3360 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 3361 sizeof(sqh->qh.qh_hlink), 3362 BUS_DMASYNC_PREWRITE); 3363 eqh->hlink = sqh; 3364 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 3365 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 3366 sizeof(eqh->qh.qh_hlink), 3367 BUS_DMASYNC_PREWRITE); 3368 vf->eqh = sqh; 3369 vf->bandwidth++; 3370 } 3371 3372 /* Remove interrupt QH. */ 3373 void 3374 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3375 { 3376 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3377 uhci_soft_qh_t *pqh; 3378 3379 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3380 DPRINTFN(4, "n=%jd sqh=%#jx", sqh->pos, (uintptr_t)sqh, 0, 0); 3381 3382 /* See comment in uhci_remove_ctrl() */ 3383 3384 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 3385 sizeof(sqh->qh.qh_elink), 3386 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3387 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 3388 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3389 usb_syncmem(&sqh->dma, 3390 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3391 sizeof(sqh->qh.qh_elink), 3392 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3393 delay(UHCI_QH_REMOVE_DELAY); 3394 } 3395 3396 pqh = uhci_find_prev_qh(vf->hqh, sqh); 3397 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 3398 sizeof(sqh->qh.qh_hlink), 3399 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3400 pqh->hlink = sqh->hlink; 3401 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 3402 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 3403 sizeof(pqh->qh.qh_hlink), 3404 BUS_DMASYNC_PREWRITE); 3405 delay(UHCI_QH_REMOVE_DELAY); 3406 if (vf->eqh == sqh) 3407 vf->eqh = pqh; 3408 vf->bandwidth--; 3409 } 3410 3411 usbd_status 3412 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 3413 { 3414 uhci_soft_qh_t *sqh; 3415 int i, npoll; 3416 u_int bestbw, bw, bestoffs, offs; 3417 3418 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3419 DPRINTFN(2, "pipe=%#jx", (uintptr_t)upipe, 0, 0, 0); 3420 if (ival == 0) { 3421 printf("%s: 0 interval\n", __func__); 3422 return USBD_INVAL; 3423 } 3424 3425 if (ival > UHCI_VFRAMELIST_COUNT) 3426 ival = UHCI_VFRAMELIST_COUNT; 3427 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 3428 DPRINTF("ival=%jd npoll=%jd", ival, npoll, 0, 0); 3429 3430 upipe->intr.npoll = npoll; 3431 upipe->intr.qhs = 3432 kmem_alloc(npoll * sizeof(uhci_soft_qh_t *), KM_SLEEP); 3433 3434 /* 3435 * Figure out which offset in the schedule that has most 3436 * bandwidth left over. 3437 */ 3438 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 3439 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 3440 for (bw = i = 0; i < npoll; i++) 3441 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 3442 if (bw < bestbw) { 3443 bestbw = bw; 3444 bestoffs = offs; 3445 } 3446 } 3447 DPRINTF("bw=%jd offs=%jd", bestbw, bestoffs, 0, 0); 3448 for (i = 0; i < npoll; i++) { 3449 upipe->intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 3450 sqh->elink = NULL; 3451 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3452 usb_syncmem(&sqh->dma, 3453 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3454 sizeof(sqh->qh.qh_elink), 3455 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3456 sqh->pos = MOD(i * ival + bestoffs); 3457 } 3458 #undef MOD 3459 3460 mutex_enter(&sc->sc_lock); 3461 /* Enter QHs into the controller data structures. */ 3462 for (i = 0; i < npoll; i++) 3463 uhci_add_intr(sc, upipe->intr.qhs[i]); 3464 mutex_exit(&sc->sc_lock); 3465 3466 DPRINTFN(5, "returns %#jx", (uintptr_t)upipe, 0, 0, 0); 3467 3468 return USBD_NORMAL_COMPLETION; 3469 } 3470 3471 /* Open a new pipe. */ 3472 usbd_status 3473 uhci_open(struct usbd_pipe *pipe) 3474 { 3475 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3476 struct usbd_bus *bus = pipe->up_dev->ud_bus; 3477 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3478 usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc; 3479 usbd_status err = USBD_NOMEM; 3480 int ival; 3481 3482 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3483 DPRINTF("pipe=%#jx, addr=%jd, endpt=%jd (%jd)", 3484 (uintptr_t)pipe, pipe->up_dev->ud_addr, ed->bEndpointAddress, 3485 bus->ub_rhaddr); 3486 3487 if (sc->sc_dying) 3488 return USBD_IOERROR; 3489 3490 upipe->aborting = 0; 3491 /* toggle state needed for bulk endpoints */ 3492 upipe->nexttoggle = pipe->up_endpoint->ue_toggle; 3493 3494 if (pipe->up_dev->ud_addr == bus->ub_rhaddr) { 3495 switch (ed->bEndpointAddress) { 3496 case USB_CONTROL_ENDPOINT: 3497 pipe->up_methods = &roothub_ctrl_methods; 3498 break; 3499 case UE_DIR_IN | USBROOTHUB_INTR_ENDPT: 3500 pipe->up_methods = &uhci_root_intr_methods; 3501 break; 3502 default: 3503 return USBD_INVAL; 3504 } 3505 } else { 3506 switch (ed->bmAttributes & UE_XFERTYPE) { 3507 case UE_CONTROL: 3508 pipe->up_methods = &uhci_device_ctrl_methods; 3509 upipe->ctrl.sqh = uhci_alloc_sqh(sc); 3510 if (upipe->ctrl.sqh == NULL) 3511 goto bad; 3512 upipe->ctrl.setup = uhci_alloc_std(sc); 3513 if (upipe->ctrl.setup == NULL) { 3514 uhci_free_sqh(sc, upipe->ctrl.sqh); 3515 goto bad; 3516 } 3517 upipe->ctrl.stat = uhci_alloc_std(sc); 3518 if (upipe->ctrl.stat == NULL) { 3519 uhci_free_sqh(sc, upipe->ctrl.sqh); 3520 uhci_free_std(sc, upipe->ctrl.setup); 3521 goto bad; 3522 } 3523 err = usb_allocmem(&sc->sc_bus, 3524 sizeof(usb_device_request_t), 3525 0, &upipe->ctrl.reqdma); 3526 if (err) { 3527 uhci_free_sqh(sc, upipe->ctrl.sqh); 3528 uhci_free_std(sc, upipe->ctrl.setup); 3529 uhci_free_std(sc, upipe->ctrl.stat); 3530 goto bad; 3531 } 3532 break; 3533 case UE_INTERRUPT: 3534 pipe->up_methods = &uhci_device_intr_methods; 3535 ival = pipe->up_interval; 3536 if (ival == USBD_DEFAULT_INTERVAL) 3537 ival = ed->bInterval; 3538 return uhci_device_setintr(sc, upipe, ival); 3539 case UE_ISOCHRONOUS: 3540 pipe->up_serialise = false; 3541 pipe->up_methods = &uhci_device_isoc_methods; 3542 return uhci_setup_isoc(pipe); 3543 case UE_BULK: 3544 pipe->up_methods = &uhci_device_bulk_methods; 3545 upipe->bulk.sqh = uhci_alloc_sqh(sc); 3546 if (upipe->bulk.sqh == NULL) 3547 goto bad; 3548 break; 3549 } 3550 } 3551 return USBD_NORMAL_COMPLETION; 3552 3553 bad: 3554 return USBD_NOMEM; 3555 } 3556 3557 /* 3558 * Data structures and routines to emulate the root hub. 3559 */ 3560 /* 3561 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3562 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3563 * should not be used by the USB subsystem. As we cannot issue a 3564 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3565 * will be enabled as part of the reset. 3566 * 3567 * On the VT83C572, the port cannot be successfully enabled until the 3568 * outstanding "port enable change" and "connection status change" 3569 * events have been reset. 3570 */ 3571 Static usbd_status 3572 uhci_portreset(uhci_softc_t *sc, int index) 3573 { 3574 int lim, port, x; 3575 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3576 3577 if (index == 1) 3578 port = UHCI_PORTSC1; 3579 else if (index == 2) 3580 port = UHCI_PORTSC2; 3581 else 3582 return USBD_IOERROR; 3583 3584 x = URWMASK(UREAD2(sc, port)); 3585 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3586 3587 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3588 3589 DPRINTF("uhci port %jd reset, status0 = 0x%04jx", index, 3590 UREAD2(sc, port), 0, 0); 3591 3592 x = URWMASK(UREAD2(sc, port)); 3593 UWRITE2(sc, port, x & ~(UHCI_PORTSC_PR | UHCI_PORTSC_SUSP)); 3594 3595 delay(100); 3596 3597 DPRINTF("uhci port %jd reset, status1 = 0x%04jx", index, 3598 UREAD2(sc, port), 0, 0); 3599 3600 x = URWMASK(UREAD2(sc, port)); 3601 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3602 3603 for (lim = 10; --lim > 0;) { 3604 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3605 3606 x = UREAD2(sc, port); 3607 DPRINTF("uhci port %jd iteration %ju, status = 0x%04jx", index, 3608 lim, x, 0); 3609 3610 if (!(x & UHCI_PORTSC_CCS)) { 3611 /* 3612 * No device is connected (or was disconnected 3613 * during reset). Consider the port reset. 3614 * The delay must be long enough to ensure on 3615 * the initial iteration that the device 3616 * connection will have been registered. 50ms 3617 * appears to be sufficient, but 20ms is not. 3618 */ 3619 DPRINTFN(3, "uhci port %jd loop %ju, device detached", 3620 index, lim, 0, 0); 3621 break; 3622 } 3623 3624 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3625 /* 3626 * Port enabled changed and/or connection 3627 * status changed were set. Reset either or 3628 * both raised flags (by writing a 1 to that 3629 * bit), and wait again for state to settle. 3630 */ 3631 UWRITE2(sc, port, URWMASK(x) | 3632 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3633 continue; 3634 } 3635 3636 if (x & UHCI_PORTSC_PE) 3637 /* Port is enabled */ 3638 break; 3639 3640 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3641 } 3642 3643 DPRINTFN(3, "uhci port %jd reset, status2 = 0x%04jx", index, 3644 UREAD2(sc, port), 0, 0); 3645 3646 if (lim <= 0) { 3647 DPRINTF("uhci port %jd reset timed out", index, 3648 0, 0, 0); 3649 return USBD_TIMEOUT; 3650 } 3651 3652 sc->sc_isreset = 1; 3653 return USBD_NORMAL_COMPLETION; 3654 } 3655 3656 Static int 3657 uhci_roothub_ctrl(struct usbd_bus *bus, usb_device_request_t *req, 3658 void *buf, int buflen) 3659 { 3660 uhci_softc_t *sc = UHCI_BUS2SC(bus); 3661 int port, x; 3662 int status, change, totlen = 0; 3663 uint16_t len, value, index; 3664 usb_port_status_t ps; 3665 usbd_status err; 3666 3667 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3668 3669 if (sc->sc_dying) 3670 return -1; 3671 3672 DPRINTF("type=0x%02jx request=%02jx", req->bmRequestType, 3673 req->bRequest, 0, 0); 3674 3675 len = UGETW(req->wLength); 3676 value = UGETW(req->wValue); 3677 index = UGETW(req->wIndex); 3678 3679 #define C(x,y) ((x) | ((y) << 8)) 3680 switch (C(req->bRequest, req->bmRequestType)) { 3681 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3682 DPRINTF("wValue=0x%04jx", value, 0, 0, 0); 3683 if (len == 0) 3684 break; 3685 switch (value) { 3686 #define sd ((usb_string_descriptor_t *)buf) 3687 case C(2, UDESC_STRING): 3688 /* Product */ 3689 totlen = usb_makestrdesc(sd, len, "UHCI root hub"); 3690 break; 3691 #undef sd 3692 default: 3693 /* default from usbroothub */ 3694 return buflen; 3695 } 3696 break; 3697 3698 /* Hub requests */ 3699 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3700 break; 3701 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3702 DPRINTF("UR_CLEAR_PORT_FEATURE port=%jd feature=%jd", index, 3703 value, 0, 0); 3704 if (index == 1) 3705 port = UHCI_PORTSC1; 3706 else if (index == 2) 3707 port = UHCI_PORTSC2; 3708 else { 3709 return -1; 3710 } 3711 switch(value) { 3712 case UHF_PORT_ENABLE: 3713 x = URWMASK(UREAD2(sc, port)); 3714 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3715 break; 3716 case UHF_PORT_SUSPEND: 3717 x = URWMASK(UREAD2(sc, port)); 3718 if (!(x & UHCI_PORTSC_SUSP)) /* not suspended */ 3719 break; 3720 UWRITE2(sc, port, x | UHCI_PORTSC_RD); 3721 /* see USB2 spec ch. 7.1.7.7 */ 3722 usb_delay_ms(&sc->sc_bus, 20); 3723 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3724 /* 10ms resume delay must be provided by caller */ 3725 break; 3726 case UHF_PORT_RESET: 3727 x = URWMASK(UREAD2(sc, port)); 3728 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3729 break; 3730 case UHF_C_PORT_CONNECTION: 3731 x = URWMASK(UREAD2(sc, port)); 3732 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3733 break; 3734 case UHF_C_PORT_ENABLE: 3735 x = URWMASK(UREAD2(sc, port)); 3736 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3737 break; 3738 case UHF_C_PORT_OVER_CURRENT: 3739 x = URWMASK(UREAD2(sc, port)); 3740 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3741 break; 3742 case UHF_C_PORT_RESET: 3743 sc->sc_isreset = 0; 3744 break; 3745 case UHF_PORT_CONNECTION: 3746 case UHF_PORT_OVER_CURRENT: 3747 case UHF_PORT_POWER: 3748 case UHF_PORT_LOW_SPEED: 3749 case UHF_C_PORT_SUSPEND: 3750 default: 3751 return -1; 3752 } 3753 break; 3754 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3755 if (index == 1) 3756 port = UHCI_PORTSC1; 3757 else if (index == 2) 3758 port = UHCI_PORTSC2; 3759 else { 3760 return -1; 3761 } 3762 if (len > 0) { 3763 *(uint8_t *)buf = 3764 UHCI_PORTSC_GET_LS(UREAD2(sc, port)); 3765 totlen = 1; 3766 } 3767 break; 3768 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3769 if (len == 0) 3770 break; 3771 if ((value & 0xff) != 0) { 3772 return -1; 3773 } 3774 usb_hub_descriptor_t hubd; 3775 3776 totlen = uimin(buflen, sizeof(hubd)); 3777 memcpy(&hubd, buf, totlen); 3778 hubd.bNbrPorts = 2; 3779 memcpy(buf, &hubd, totlen); 3780 break; 3781 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3782 if (len != 4) { 3783 return -1; 3784 } 3785 memset(buf, 0, len); 3786 totlen = len; 3787 break; 3788 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3789 if (index == 1) 3790 port = UHCI_PORTSC1; 3791 else if (index == 2) 3792 port = UHCI_PORTSC2; 3793 else { 3794 return -1; 3795 } 3796 if (len != 4) { 3797 return -1; 3798 } 3799 x = UREAD2(sc, port); 3800 status = change = 0; 3801 if (x & UHCI_PORTSC_CCS) 3802 status |= UPS_CURRENT_CONNECT_STATUS; 3803 if (x & UHCI_PORTSC_CSC) 3804 change |= UPS_C_CONNECT_STATUS; 3805 if (x & UHCI_PORTSC_PE) 3806 status |= UPS_PORT_ENABLED; 3807 if (x & UHCI_PORTSC_POEDC) 3808 change |= UPS_C_PORT_ENABLED; 3809 if (x & UHCI_PORTSC_OCI) 3810 status |= UPS_OVERCURRENT_INDICATOR; 3811 if (x & UHCI_PORTSC_OCIC) 3812 change |= UPS_C_OVERCURRENT_INDICATOR; 3813 if (x & UHCI_PORTSC_SUSP) 3814 status |= UPS_SUSPEND; 3815 if (x & UHCI_PORTSC_LSDA) 3816 status |= UPS_LOW_SPEED; 3817 status |= UPS_PORT_POWER; 3818 if (sc->sc_isreset) 3819 change |= UPS_C_PORT_RESET; 3820 USETW(ps.wPortStatus, status); 3821 USETW(ps.wPortChange, change); 3822 totlen = uimin(len, sizeof(ps)); 3823 memcpy(buf, &ps, totlen); 3824 break; 3825 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3826 return -1; 3827 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3828 break; 3829 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3830 if (index == 1) 3831 port = UHCI_PORTSC1; 3832 else if (index == 2) 3833 port = UHCI_PORTSC2; 3834 else { 3835 return -1; 3836 } 3837 switch(value) { 3838 case UHF_PORT_ENABLE: 3839 x = URWMASK(UREAD2(sc, port)); 3840 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3841 break; 3842 case UHF_PORT_SUSPEND: 3843 x = URWMASK(UREAD2(sc, port)); 3844 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3845 break; 3846 case UHF_PORT_RESET: 3847 err = uhci_portreset(sc, index); 3848 if (err != USBD_NORMAL_COMPLETION) 3849 return -1; 3850 return 0; 3851 case UHF_PORT_POWER: 3852 /* Pretend we turned on power */ 3853 return 0; 3854 case UHF_C_PORT_CONNECTION: 3855 case UHF_C_PORT_ENABLE: 3856 case UHF_C_PORT_OVER_CURRENT: 3857 case UHF_PORT_CONNECTION: 3858 case UHF_PORT_OVER_CURRENT: 3859 case UHF_PORT_LOW_SPEED: 3860 case UHF_C_PORT_SUSPEND: 3861 case UHF_C_PORT_RESET: 3862 default: 3863 return -1; 3864 } 3865 break; 3866 default: 3867 /* default from usbroothub */ 3868 DPRINTF("returning %jd (usbroothub default)", 3869 buflen, 0, 0, 0); 3870 return buflen; 3871 } 3872 3873 DPRINTF("returning %jd", totlen, 0, 0, 0); 3874 3875 return totlen; 3876 } 3877 3878 /* Abort a root interrupt request. */ 3879 void 3880 uhci_root_intr_abort(struct usbd_xfer *xfer) 3881 { 3882 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3883 3884 KASSERT(mutex_owned(&sc->sc_lock)); 3885 KASSERT(xfer->ux_pipe->up_intrxfer == xfer); 3886 3887 callout_stop(&sc->sc_poll_handle); 3888 sc->sc_intr_xfer = NULL; 3889 3890 xfer->ux_status = USBD_CANCELLED; 3891 #ifdef DIAGNOSTIC 3892 UHCI_XFER2UXFER(xfer)->ux_isdone = true; 3893 #endif 3894 usb_transfer_complete(xfer); 3895 } 3896 3897 usbd_status 3898 uhci_root_intr_transfer(struct usbd_xfer *xfer) 3899 { 3900 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3901 usbd_status err; 3902 3903 /* Insert last in queue. */ 3904 mutex_enter(&sc->sc_lock); 3905 err = usb_insert_transfer(xfer); 3906 mutex_exit(&sc->sc_lock); 3907 if (err) 3908 return err; 3909 3910 /* 3911 * Pipe isn't running (otherwise err would be USBD_INPROG), 3912 * start first 3913 */ 3914 return uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 3915 } 3916 3917 /* Start a transfer on the root interrupt pipe */ 3918 usbd_status 3919 uhci_root_intr_start(struct usbd_xfer *xfer) 3920 { 3921 struct usbd_pipe *pipe = xfer->ux_pipe; 3922 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3923 unsigned int ival; 3924 3925 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3926 DPRINTF("xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, xfer->ux_length, 3927 xfer->ux_flags, 0); 3928 3929 if (sc->sc_dying) 3930 return USBD_IOERROR; 3931 3932 /* XXX temporary variable needed to avoid gcc3 warning */ 3933 ival = xfer->ux_pipe->up_endpoint->ue_edesc->bInterval; 3934 sc->sc_ival = mstohz(ival); 3935 callout_reset(&sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3936 sc->sc_intr_xfer = xfer; 3937 return USBD_IN_PROGRESS; 3938 } 3939 3940 /* Close the root interrupt pipe. */ 3941 void 3942 uhci_root_intr_close(struct usbd_pipe *pipe) 3943 { 3944 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3945 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3946 3947 KASSERT(mutex_owned(&sc->sc_lock)); 3948 3949 callout_stop(&sc->sc_poll_handle); 3950 sc->sc_intr_xfer = NULL; 3951 } 3952
Indexes created Tue Sep 30 20:09:53 GMT 2025