uhci.c revision 1.302
1 /* $NetBSD: uhci.c,v 1.302 2020/05/25 13:55:31 skrll 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 1.302 2020/05/25 13:55:31 skrll 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_abortx(struct usbd_xfer *); 198 199 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 200 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 201 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 202 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 203 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 204 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 205 Static void uhci_add_loop(uhci_softc_t *); 206 Static void uhci_rem_loop(uhci_softc_t *); 207 208 Static usbd_status uhci_setup_isoc(struct usbd_pipe *); 209 210 Static struct usbd_xfer * 211 uhci_allocx(struct usbd_bus *, unsigned int); 212 Static void uhci_freex(struct usbd_bus *, struct usbd_xfer *); 213 Static bool uhci_dying(struct usbd_bus *); 214 Static void uhci_get_lock(struct usbd_bus *, kmutex_t **); 215 Static int uhci_roothub_ctrl(struct usbd_bus *, 216 usb_device_request_t *, void *, int); 217 218 Static int uhci_device_ctrl_init(struct usbd_xfer *); 219 Static void uhci_device_ctrl_fini(struct usbd_xfer *); 220 Static usbd_status uhci_device_ctrl_transfer(struct usbd_xfer *); 221 Static usbd_status uhci_device_ctrl_start(struct usbd_xfer *); 222 Static void uhci_device_ctrl_abort(struct usbd_xfer *); 223 Static void uhci_device_ctrl_close(struct usbd_pipe *); 224 Static void uhci_device_ctrl_done(struct usbd_xfer *); 225 226 Static int uhci_device_intr_init(struct usbd_xfer *); 227 Static void uhci_device_intr_fini(struct usbd_xfer *); 228 Static usbd_status uhci_device_intr_transfer(struct usbd_xfer *); 229 Static usbd_status uhci_device_intr_start(struct usbd_xfer *); 230 Static void uhci_device_intr_abort(struct usbd_xfer *); 231 Static void uhci_device_intr_close(struct usbd_pipe *); 232 Static void uhci_device_intr_done(struct usbd_xfer *); 233 234 Static int uhci_device_bulk_init(struct usbd_xfer *); 235 Static void uhci_device_bulk_fini(struct usbd_xfer *); 236 Static usbd_status uhci_device_bulk_transfer(struct usbd_xfer *); 237 Static usbd_status uhci_device_bulk_start(struct usbd_xfer *); 238 Static void uhci_device_bulk_abort(struct usbd_xfer *); 239 Static void uhci_device_bulk_close(struct usbd_pipe *); 240 Static void uhci_device_bulk_done(struct usbd_xfer *); 241 242 Static int uhci_device_isoc_init(struct usbd_xfer *); 243 Static void uhci_device_isoc_fini(struct usbd_xfer *); 244 Static usbd_status uhci_device_isoc_transfer(struct usbd_xfer *); 245 Static void uhci_device_isoc_abort(struct usbd_xfer *); 246 Static void uhci_device_isoc_close(struct usbd_pipe *); 247 Static void uhci_device_isoc_done(struct usbd_xfer *); 248 249 Static usbd_status uhci_root_intr_transfer(struct usbd_xfer *); 250 Static usbd_status uhci_root_intr_start(struct usbd_xfer *); 251 Static void uhci_root_intr_abort(struct usbd_xfer *); 252 Static void uhci_root_intr_close(struct usbd_pipe *); 253 Static void uhci_root_intr_done(struct usbd_xfer *); 254 255 Static usbd_status uhci_open(struct usbd_pipe *); 256 Static void uhci_poll(struct usbd_bus *); 257 Static void uhci_softintr(void *); 258 259 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 260 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 261 Static usbd_status uhci_device_setintr(uhci_softc_t *, 262 struct uhci_pipe *, int); 263 264 Static void uhci_device_clear_toggle(struct usbd_pipe *); 265 Static void uhci_noop(struct usbd_pipe *); 266 267 static inline uhci_soft_qh_t * 268 uhci_find_prev_qh(uhci_soft_qh_t *, uhci_soft_qh_t *); 269 270 #ifdef UHCI_DEBUG 271 Static void uhci_dump_all(uhci_softc_t *); 272 Static void uhci_dumpregs(uhci_softc_t *); 273 Static void uhci_dump_qhs(uhci_soft_qh_t *); 274 Static void uhci_dump_qh(uhci_soft_qh_t *); 275 Static void uhci_dump_tds(uhci_soft_td_t *); 276 Static void uhci_dump_td(uhci_soft_td_t *); 277 Static void uhci_dump_ii(struct uhci_xfer *); 278 void uhci_dump(void); 279 #endif 280 281 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 282 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 283 #define UWRITE1(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UWRITE2(sc, r, x) \ 287 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 288 } while (/*CONSTCOND*/0) 289 #define UWRITE4(sc, r, x) \ 290 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 291 } while (/*CONSTCOND*/0) 292 293 static __inline uint8_t 294 UREAD1(uhci_softc_t *sc, bus_size_t r) 295 { 296 297 UBARR(sc); 298 return bus_space_read_1(sc->iot, sc->ioh, r); 299 } 300 301 static __inline uint16_t 302 UREAD2(uhci_softc_t *sc, bus_size_t r) 303 { 304 305 UBARR(sc); 306 return bus_space_read_2(sc->iot, sc->ioh, r); 307 } 308 309 #ifdef UHCI_DEBUG 310 static __inline uint32_t 311 UREAD4(uhci_softc_t *sc, bus_size_t r) 312 { 313 314 UBARR(sc); 315 return bus_space_read_4(sc->iot, sc->ioh, r); 316 } 317 #endif 318 319 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 320 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 321 322 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 323 324 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 325 326 const struct usbd_bus_methods uhci_bus_methods = { 327 .ubm_open = uhci_open, 328 .ubm_softint = uhci_softintr, 329 .ubm_dopoll = uhci_poll, 330 .ubm_allocx = uhci_allocx, 331 .ubm_freex = uhci_freex, 332 .ubm_abortx = uhci_abortx, 333 .ubm_dying = uhci_dying, 334 .ubm_getlock = uhci_get_lock, 335 .ubm_rhctrl = uhci_roothub_ctrl, 336 }; 337 338 const struct usbd_pipe_methods uhci_root_intr_methods = { 339 .upm_transfer = uhci_root_intr_transfer, 340 .upm_start = uhci_root_intr_start, 341 .upm_abort = uhci_root_intr_abort, 342 .upm_close = uhci_root_intr_close, 343 .upm_cleartoggle = uhci_noop, 344 .upm_done = uhci_root_intr_done, 345 }; 346 347 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 348 .upm_init = uhci_device_ctrl_init, 349 .upm_fini = uhci_device_ctrl_fini, 350 .upm_transfer = uhci_device_ctrl_transfer, 351 .upm_start = uhci_device_ctrl_start, 352 .upm_abort = uhci_device_ctrl_abort, 353 .upm_close = uhci_device_ctrl_close, 354 .upm_cleartoggle = uhci_noop, 355 .upm_done = uhci_device_ctrl_done, 356 }; 357 358 const struct usbd_pipe_methods uhci_device_intr_methods = { 359 .upm_init = uhci_device_intr_init, 360 .upm_fini = uhci_device_intr_fini, 361 .upm_transfer = uhci_device_intr_transfer, 362 .upm_start = uhci_device_intr_start, 363 .upm_abort = uhci_device_intr_abort, 364 .upm_close = uhci_device_intr_close, 365 .upm_cleartoggle = uhci_device_clear_toggle, 366 .upm_done = uhci_device_intr_done, 367 }; 368 369 const struct usbd_pipe_methods uhci_device_bulk_methods = { 370 .upm_init = uhci_device_bulk_init, 371 .upm_fini = uhci_device_bulk_fini, 372 .upm_transfer = uhci_device_bulk_transfer, 373 .upm_start = uhci_device_bulk_start, 374 .upm_abort = uhci_device_bulk_abort, 375 .upm_close = uhci_device_bulk_close, 376 .upm_cleartoggle = uhci_device_clear_toggle, 377 .upm_done = uhci_device_bulk_done, 378 }; 379 380 const struct usbd_pipe_methods uhci_device_isoc_methods = { 381 .upm_init = uhci_device_isoc_init, 382 .upm_fini = uhci_device_isoc_fini, 383 .upm_transfer = uhci_device_isoc_transfer, 384 .upm_abort = uhci_device_isoc_abort, 385 .upm_close = uhci_device_isoc_close, 386 .upm_cleartoggle = uhci_noop, 387 .upm_done = uhci_device_isoc_done, 388 }; 389 390 static inline void 391 uhci_add_intr_list(uhci_softc_t *sc, struct uhci_xfer *ux) 392 { 393 394 TAILQ_INSERT_TAIL(&sc->sc_intrhead, ux, ux_list); 395 } 396 397 static inline void 398 uhci_del_intr_list(uhci_softc_t *sc, struct uhci_xfer *ux) 399 { 400 401 TAILQ_REMOVE(&sc->sc_intrhead, ux, ux_list); 402 } 403 404 static inline uhci_soft_qh_t * 405 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 406 { 407 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 408 DPRINTFN(15, "pqh=%#jx sqh=%#jx", (uintptr_t)pqh, (uintptr_t)sqh, 0, 0); 409 410 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 411 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 412 usb_syncmem(&pqh->dma, 413 pqh->offs + offsetof(uhci_qh_t, qh_hlink), 414 sizeof(pqh->qh.qh_hlink), 415 BUS_DMASYNC_POSTWRITE); 416 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 417 printf("%s: QH not found\n", __func__); 418 return NULL; 419 } 420 #endif 421 } 422 return pqh; 423 } 424 425 void 426 uhci_globalreset(uhci_softc_t *sc) 427 { 428 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 429 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 430 UHCICMD(sc, 0); /* do nothing */ 431 } 432 433 int 434 uhci_init(uhci_softc_t *sc) 435 { 436 usbd_status err; 437 int i, j; 438 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 439 uhci_soft_td_t *std; 440 441 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 442 443 #ifdef UHCI_DEBUG 444 thesc = sc; 445 446 if (uhcidebug >= 2) 447 uhci_dumpregs(sc); 448 #endif 449 450 sc->sc_suspend = PWR_RESUME; 451 452 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 453 uhci_globalreset(sc); /* reset the controller */ 454 uhci_reset(sc); 455 456 /* Allocate and initialize real frame array. */ 457 err = usb_allocmem(&sc->sc_bus, 458 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 459 UHCI_FRAMELIST_ALIGN, USBMALLOC_COHERENT, &sc->sc_dma); 460 if (err) 461 return err; 462 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 463 /* set frame number to 0 */ 464 UWRITE2(sc, UHCI_FRNUM, 0); 465 /* set frame list */ 466 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 467 468 /* Initialise mutex early for uhci_alloc_* */ 469 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 470 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_USB); 471 472 /* 473 * Allocate a TD, inactive, that hangs from the last QH. 474 * This is to avoid a bug in the PIIX that makes it run berserk 475 * otherwise. 476 */ 477 std = uhci_alloc_std(sc); 478 if (std == NULL) 479 return ENOMEM; 480 std->link.std = NULL; 481 std->td.td_link = htole32(UHCI_PTR_T); 482 std->td.td_status = htole32(0); /* inactive */ 483 std->td.td_token = htole32(0); 484 std->td.td_buffer = htole32(0); 485 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 486 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 487 488 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 489 lsqh = uhci_alloc_sqh(sc); 490 if (lsqh == NULL) 491 goto fail1; 492 lsqh->hlink = NULL; 493 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 494 lsqh->elink = std; 495 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 496 sc->sc_last_qh = lsqh; 497 usb_syncmem(&lsqh->dma, lsqh->offs, sizeof(lsqh->qh), 498 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 499 500 /* Allocate the dummy QH where bulk traffic will be queued. */ 501 bsqh = uhci_alloc_sqh(sc); 502 if (bsqh == NULL) 503 goto fail2; 504 bsqh->hlink = lsqh; 505 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 506 bsqh->elink = NULL; 507 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 508 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 509 usb_syncmem(&bsqh->dma, bsqh->offs, sizeof(bsqh->qh), 510 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 511 512 /* Allocate dummy QH where high speed control traffic will be queued. */ 513 chsqh = uhci_alloc_sqh(sc); 514 if (chsqh == NULL) 515 goto fail3; 516 chsqh->hlink = bsqh; 517 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 518 chsqh->elink = NULL; 519 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 520 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 521 usb_syncmem(&chsqh->dma, chsqh->offs, sizeof(chsqh->qh), 522 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 523 524 /* Allocate dummy QH where control traffic will be queued. */ 525 clsqh = uhci_alloc_sqh(sc); 526 if (clsqh == NULL) 527 goto fail4; 528 clsqh->hlink = chsqh; 529 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 530 clsqh->elink = NULL; 531 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 532 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 533 usb_syncmem(&clsqh->dma, clsqh->offs, sizeof(clsqh->qh), 534 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 535 536 /* 537 * Make all (virtual) frame list pointers point to the interrupt 538 * queue heads and the interrupt queue heads at the control 539 * queue head and point the physical frame list to the virtual. 540 */ 541 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 542 std = uhci_alloc_std(sc); 543 sqh = uhci_alloc_sqh(sc); 544 if (std == NULL || sqh == NULL) 545 return USBD_NOMEM; 546 std->link.sqh = sqh; 547 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 548 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 549 std->td.td_token = htole32(0); 550 std->td.td_buffer = htole32(0); 551 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 552 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 553 sqh->hlink = clsqh; 554 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 555 sqh->elink = NULL; 556 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 557 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 558 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 559 sc->sc_vframes[i].htd = std; 560 sc->sc_vframes[i].etd = std; 561 sc->sc_vframes[i].hqh = sqh; 562 sc->sc_vframes[i].eqh = sqh; 563 for (j = i; 564 j < UHCI_FRAMELIST_COUNT; 565 j += UHCI_VFRAMELIST_COUNT) 566 sc->sc_pframes[j] = htole32(std->physaddr); 567 } 568 usb_syncmem(&sc->sc_dma, 0, 569 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 570 BUS_DMASYNC_PREWRITE); 571 572 573 TAILQ_INIT(&sc->sc_intrhead); 574 575 sc->sc_xferpool = pool_cache_init(sizeof(struct uhci_xfer), 0, 0, 0, 576 "uhcixfer", NULL, IPL_USB, NULL, NULL, NULL); 577 578 callout_init(&sc->sc_poll_handle, CALLOUT_MPSAFE); 579 callout_setfunc(&sc->sc_poll_handle, uhci_poll_hub, sc); 580 581 /* Set up the bus struct. */ 582 sc->sc_bus.ub_methods = &uhci_bus_methods; 583 sc->sc_bus.ub_pipesize = sizeof(struct uhci_pipe); 584 sc->sc_bus.ub_usedma = true; 585 sc->sc_bus.ub_dmaflags = USBMALLOC_MULTISEG; 586 587 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 588 589 DPRINTF("Enabling...", 0, 0, 0, 0); 590 591 err = uhci_run(sc, 1, 0); /* and here we go... */ 592 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 593 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 594 return err; 595 596 fail4: 597 uhci_free_sqh(sc, chsqh); 598 fail3: 599 uhci_free_sqh(sc, lsqh); 600 fail2: 601 uhci_free_sqh(sc, lsqh); 602 fail1: 603 uhci_free_std(sc, std); 604 605 return ENOMEM; 606 } 607 608 int 609 uhci_activate(device_t self, enum devact act) 610 { 611 struct uhci_softc *sc = device_private(self); 612 613 switch (act) { 614 case DVACT_DEACTIVATE: 615 sc->sc_dying = 1; 616 return 0; 617 default: 618 return EOPNOTSUPP; 619 } 620 } 621 622 void 623 uhci_childdet(device_t self, device_t child) 624 { 625 struct uhci_softc *sc = device_private(self); 626 627 KASSERT(sc->sc_child == child); 628 sc->sc_child = NULL; 629 } 630 631 int 632 uhci_detach(struct uhci_softc *sc, int flags) 633 { 634 int rv = 0; 635 636 if (sc->sc_child != NULL) 637 rv = config_detach(sc->sc_child, flags); 638 639 if (rv != 0) 640 return rv; 641 642 callout_halt(&sc->sc_poll_handle, NULL); 643 callout_destroy(&sc->sc_poll_handle); 644 645 mutex_destroy(&sc->sc_lock); 646 mutex_destroy(&sc->sc_intr_lock); 647 648 pool_cache_destroy(sc->sc_xferpool); 649 650 /* XXX free other data structures XXX */ 651 652 return rv; 653 } 654 655 struct usbd_xfer * 656 uhci_allocx(struct usbd_bus *bus, unsigned int nframes) 657 { 658 struct uhci_softc *sc = UHCI_BUS2SC(bus); 659 struct usbd_xfer *xfer; 660 661 xfer = pool_cache_get(sc->sc_xferpool, PR_WAITOK); 662 if (xfer != NULL) { 663 memset(xfer, 0, sizeof(struct uhci_xfer)); 664 665 #ifdef DIAGNOSTIC 666 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 667 uxfer->ux_isdone = true; 668 xfer->ux_state = XFER_BUSY; 669 #endif 670 } 671 return xfer; 672 } 673 674 void 675 uhci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer) 676 { 677 struct uhci_softc *sc = UHCI_BUS2SC(bus); 678 struct uhci_xfer *uxfer __diagused = UHCI_XFER2UXFER(xfer); 679 680 KASSERTMSG(xfer->ux_state == XFER_BUSY || 681 xfer->ux_status == USBD_NOT_STARTED, 682 "xfer %p state %d\n", xfer, xfer->ux_state); 683 KASSERTMSG(uxfer->ux_isdone || xfer->ux_status == USBD_NOT_STARTED, 684 "xfer %p not done\n", xfer); 685 #ifdef DIAGNOSTIC 686 xfer->ux_state = XFER_FREE; 687 #endif 688 pool_cache_put(sc->sc_xferpool, xfer); 689 } 690 691 Static bool 692 uhci_dying(struct usbd_bus *bus) 693 { 694 struct uhci_softc *sc = UHCI_BUS2SC(bus); 695 696 return sc->sc_dying; 697 } 698 699 Static void 700 uhci_get_lock(struct usbd_bus *bus, kmutex_t **lock) 701 { 702 struct uhci_softc *sc = UHCI_BUS2SC(bus); 703 704 *lock = &sc->sc_lock; 705 } 706 707 708 /* 709 * Handle suspend/resume. 710 * 711 * We need to switch to polling mode here, because this routine is 712 * called from an interrupt context. This is all right since we 713 * are almost suspended anyway. 714 */ 715 bool 716 uhci_resume(device_t dv, const pmf_qual_t *qual) 717 { 718 uhci_softc_t *sc = device_private(dv); 719 int cmd; 720 721 mutex_spin_enter(&sc->sc_intr_lock); 722 723 cmd = UREAD2(sc, UHCI_CMD); 724 sc->sc_bus.ub_usepolling++; 725 UWRITE2(sc, UHCI_INTR, 0); 726 uhci_globalreset(sc); 727 uhci_reset(sc); 728 if (cmd & UHCI_CMD_RS) 729 uhci_run(sc, 0, 1); 730 731 /* restore saved state */ 732 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 733 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 734 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 735 736 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 737 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_DELAY, &sc->sc_intr_lock); 738 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 739 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 740 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 741 UHCICMD(sc, UHCI_CMD_MAXP); 742 uhci_run(sc, 1, 1); /* and start traffic again */ 743 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_RECOVERY, &sc->sc_intr_lock); 744 sc->sc_bus.ub_usepolling--; 745 if (sc->sc_intr_xfer != NULL) 746 callout_schedule(&sc->sc_poll_handle, sc->sc_ival); 747 #ifdef UHCI_DEBUG 748 if (uhcidebug >= 2) 749 uhci_dumpregs(sc); 750 #endif 751 752 sc->sc_suspend = PWR_RESUME; 753 mutex_spin_exit(&sc->sc_intr_lock); 754 755 return true; 756 } 757 758 bool 759 uhci_suspend(device_t dv, const pmf_qual_t *qual) 760 { 761 uhci_softc_t *sc = device_private(dv); 762 int cmd; 763 764 mutex_spin_enter(&sc->sc_intr_lock); 765 766 cmd = UREAD2(sc, UHCI_CMD); 767 768 #ifdef UHCI_DEBUG 769 if (uhcidebug >= 2) 770 uhci_dumpregs(sc); 771 #endif 772 sc->sc_suspend = PWR_SUSPEND; 773 if (sc->sc_intr_xfer != NULL) 774 callout_halt(&sc->sc_poll_handle, &sc->sc_intr_lock); 775 sc->sc_bus.ub_usepolling++; 776 777 uhci_run(sc, 0, 1); /* stop the controller */ 778 cmd &= ~UHCI_CMD_RS; 779 780 /* save some state if BIOS doesn't */ 781 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 782 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 783 784 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 785 786 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter suspend */ 787 usb_delay_ms_locked(&sc->sc_bus, USB_RESUME_WAIT, &sc->sc_intr_lock); 788 sc->sc_bus.ub_usepolling--; 789 790 mutex_spin_exit(&sc->sc_intr_lock); 791 792 return true; 793 } 794 795 #ifdef UHCI_DEBUG 796 Static void 797 uhci_dumpregs(uhci_softc_t *sc) 798 { 799 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 800 DPRINTF("cmd =%04jx sts =%04jx intr =%04jx frnum =%04jx", 801 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS), 802 UREAD2(sc, UHCI_INTR), UREAD2(sc, UHCI_FRNUM)); 803 DPRINTF("sof =%04jx portsc1=%04jx portsc2=%04jx flbase=%08jx", 804 UREAD1(sc, UHCI_SOF), UREAD2(sc, UHCI_PORTSC1), 805 UREAD2(sc, UHCI_PORTSC2), UREAD4(sc, UHCI_FLBASEADDR)); 806 } 807 808 void 809 uhci_dump_td(uhci_soft_td_t *p) 810 { 811 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 812 813 usb_syncmem(&p->dma, p->offs, sizeof(p->td), 814 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 815 816 DPRINTF("TD(%#jx) at 0x%08jx", (uintptr_t)p, p->physaddr, 0, 0); 817 DPRINTF(" link=0x%08jx status=0x%08jx " 818 "token=0x%08x buffer=0x%08x", 819 le32toh(p->td.td_link), 820 le32toh(p->td.td_status), 821 le32toh(p->td.td_token), 822 le32toh(p->td.td_buffer)); 823 824 DPRINTF("bitstuff=%jd crcto =%jd nak =%jd babble =%jd", 825 !!(le32toh(p->td.td_status) & UHCI_TD_BITSTUFF), 826 !!(le32toh(p->td.td_status) & UHCI_TD_CRCTO), 827 !!(le32toh(p->td.td_status) & UHCI_TD_NAK), 828 !!(le32toh(p->td.td_status) & UHCI_TD_BABBLE)); 829 DPRINTF("dbuffer =%jd stalled =%jd active =%jd ioc =%jd", 830 !!(le32toh(p->td.td_status) & UHCI_TD_DBUFFER), 831 !!(le32toh(p->td.td_status) & UHCI_TD_STALLED), 832 !!(le32toh(p->td.td_status) & UHCI_TD_ACTIVE), 833 !!(le32toh(p->td.td_status) & UHCI_TD_IOC)); 834 DPRINTF("ios =%jd ls =%jd spd =%jd", 835 !!(le32toh(p->td.td_status) & UHCI_TD_IOS), 836 !!(le32toh(p->td.td_status) & UHCI_TD_LS), 837 !!(le32toh(p->td.td_status) & UHCI_TD_SPD), 0); 838 DPRINTF("errcnt =%d actlen =%d pid=%02x", 839 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 840 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 841 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 0); 842 DPRINTF("addr=%jd endpt=%jd D=%jd maxlen=%jd,", 843 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 844 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 845 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 846 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token))); 847 } 848 849 void 850 uhci_dump_qh(uhci_soft_qh_t *sqh) 851 { 852 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 853 854 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 855 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 856 857 DPRINTF("QH(%#jx) at 0x%08jx: hlink=%08jx elink=%08jx", (uintptr_t)sqh, 858 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 859 le32toh(sqh->qh.qh_elink)); 860 861 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), BUS_DMASYNC_PREREAD); 862 } 863 864 865 #if 1 866 void 867 uhci_dump(void) 868 { 869 uhci_dump_all(thesc); 870 } 871 #endif 872 873 void 874 uhci_dump_all(uhci_softc_t *sc) 875 { 876 uhci_dumpregs(sc); 877 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 878 uhci_dump_qhs(sc->sc_lctl_start); 879 } 880 881 882 void 883 uhci_dump_qhs(uhci_soft_qh_t *sqh) 884 { 885 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 886 887 uhci_dump_qh(sqh); 888 889 /* 890 * uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 891 * Traverses sideways first, then down. 892 * 893 * QH1 894 * QH2 895 * No QH 896 * TD2.1 897 * TD2.2 898 * TD1.1 899 * etc. 900 * 901 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 902 */ 903 904 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 905 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 906 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 907 uhci_dump_qhs(sqh->hlink); 908 else 909 DPRINTF("No QH", 0, 0, 0, 0); 910 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), BUS_DMASYNC_PREREAD); 911 912 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 913 uhci_dump_tds(sqh->elink); 914 else 915 DPRINTF("No QH", 0, 0, 0, 0); 916 } 917 918 void 919 uhci_dump_tds(uhci_soft_td_t *std) 920 { 921 uhci_soft_td_t *td; 922 int stop; 923 924 for (td = std; td != NULL; td = td->link.std) { 925 uhci_dump_td(td); 926 927 /* 928 * Check whether the link pointer in this TD marks 929 * the link pointer as end of queue. This avoids 930 * printing the free list in case the queue/TD has 931 * already been moved there (seatbelt). 932 */ 933 usb_syncmem(&td->dma, td->offs + offsetof(uhci_td_t, td_link), 934 sizeof(td->td.td_link), 935 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 936 stop = (le32toh(td->td.td_link) & UHCI_PTR_T || 937 le32toh(td->td.td_link) == 0); 938 usb_syncmem(&td->dma, td->offs + offsetof(uhci_td_t, td_link), 939 sizeof(td->td.td_link), BUS_DMASYNC_PREREAD); 940 if (stop) 941 break; 942 } 943 } 944 945 Static void 946 uhci_dump_ii(struct uhci_xfer *ux) 947 { 948 struct usbd_pipe *pipe; 949 usb_endpoint_descriptor_t *ed; 950 struct usbd_device *dev; 951 952 if (ux == NULL) { 953 printf("ux NULL\n"); 954 return; 955 } 956 pipe = ux->ux_xfer.ux_pipe; 957 if (pipe == NULL) { 958 printf("ux %p: done=%d pipe=NULL\n", ux, ux->ux_isdone); 959 return; 960 } 961 if (pipe->up_endpoint == NULL) { 962 printf("ux %p: done=%d pipe=%p pipe->up_endpoint=NULL\n", 963 ux, ux->ux_isdone, pipe); 964 return; 965 } 966 if (pipe->up_dev == NULL) { 967 printf("ux %p: done=%d pipe=%p pipe->up_dev=NULL\n", 968 ux, ux->ux_isdone, pipe); 969 return; 970 } 971 ed = pipe->up_endpoint->ue_edesc; 972 dev = pipe->up_dev; 973 printf("ux %p: done=%d dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 974 ux, ux->ux_isdone, dev, 975 UGETW(dev->ud_ddesc.idVendor), 976 UGETW(dev->ud_ddesc.idProduct), 977 dev->ud_addr, pipe, 978 ed->bEndpointAddress, ed->bmAttributes); 979 } 980 981 void uhci_dump_iis(struct uhci_softc *sc); 982 void 983 uhci_dump_iis(struct uhci_softc *sc) 984 { 985 struct uhci_xfer *ux; 986 987 printf("interrupt list:\n"); 988 TAILQ_FOREACH(ux, &sc->sc_intrhead, ux_list) 989 uhci_dump_ii(ux); 990 } 991 992 void iidump(void); 993 void iidump(void) { uhci_dump_iis(thesc); } 994 995 #endif 996 997 /* 998 * This routine is executed periodically and simulates interrupts 999 * from the root controller interrupt pipe for port status change. 1000 */ 1001 void 1002 uhci_poll_hub(void *addr) 1003 { 1004 struct uhci_softc *sc = addr; 1005 struct usbd_xfer *xfer; 1006 u_char *p; 1007 1008 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1009 1010 mutex_enter(&sc->sc_lock); 1011 1012 /* 1013 * If the intr xfer has completed or been synchronously 1014 * aborted, we have nothing to do. 1015 */ 1016 xfer = sc->sc_intr_xfer; 1017 if (xfer == NULL) 1018 goto out; 1019 KASSERT(xfer->ux_status == USBD_IN_PROGRESS); 1020 1021 /* 1022 * If the intr xfer for which we were scheduled is done, and 1023 * another intr xfer has been submitted, let that one be dealt 1024 * with when the callout fires again. 1025 * 1026 * The call to callout_pending is racy, but the the transition 1027 * from pending to invoking happens atomically. The 1028 * callout_ack ensures callout_invoking does not return true 1029 * due to this invocation of the callout; the lock ensures the 1030 * next invocation of the callout cannot callout_ack (unless it 1031 * had already run to completion and nulled sc->sc_intr_xfer, 1032 * in which case would have bailed out already). 1033 */ 1034 callout_ack(&sc->sc_poll_handle); 1035 if (callout_pending(&sc->sc_poll_handle) || 1036 callout_invoking(&sc->sc_poll_handle)) 1037 goto out; 1038 1039 /* 1040 * Check flags for the two interrupt ports, and set them in the 1041 * buffer if an interrupt arrived; otherwise arrange . 1042 */ 1043 p = xfer->ux_buf; 1044 p[0] = 0; 1045 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1046 p[0] |= 1<<1; 1047 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1048 p[0] |= 1<<2; 1049 if (p[0] == 0) { 1050 /* 1051 * No change -- try again in a while, unless we're 1052 * suspending, in which case we'll try again after 1053 * resume. 1054 */ 1055 if (sc->sc_suspend != PWR_SUSPEND) 1056 callout_schedule(&sc->sc_poll_handle, sc->sc_ival); 1057 goto out; 1058 } 1059 1060 /* 1061 * Interrupt completed, and the xfer has not been completed or 1062 * synchronously aborted. Complete the xfer now. 1063 */ 1064 xfer->ux_actlen = 1; 1065 xfer->ux_status = USBD_NORMAL_COMPLETION; 1066 #ifdef DIAGNOSTIC 1067 UHCI_XFER2UXFER(xfer)->ux_isdone = true; 1068 #endif 1069 usb_transfer_complete(xfer); 1070 1071 out: mutex_exit(&sc->sc_lock); 1072 } 1073 1074 void 1075 uhci_root_intr_done(struct usbd_xfer *xfer) 1076 { 1077 struct uhci_softc *sc = UHCI_XFER2SC(xfer); 1078 1079 KASSERT(mutex_owned(&sc->sc_lock)); 1080 1081 /* Claim the xfer so it doesn't get completed again. */ 1082 KASSERT(sc->sc_intr_xfer == xfer); 1083 KASSERT(xfer->ux_status != USBD_IN_PROGRESS); 1084 sc->sc_intr_xfer = NULL; 1085 } 1086 1087 /* 1088 * Let the last QH loop back to the high speed control transfer QH. 1089 * This is what intel calls "bandwidth reclamation" and improves 1090 * USB performance a lot for some devices. 1091 * If we are already looping, just count it. 1092 */ 1093 void 1094 uhci_add_loop(uhci_softc_t *sc) 1095 { 1096 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1097 1098 #ifdef UHCI_DEBUG 1099 if (uhcinoloop) 1100 return; 1101 #endif 1102 if (++sc->sc_loops == 1) { 1103 DPRINTFN(5, "add loop", 0, 0, 0, 0); 1104 /* Note, we don't loop back the soft pointer. */ 1105 sc->sc_last_qh->qh.qh_hlink = 1106 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1107 usb_syncmem(&sc->sc_last_qh->dma, 1108 sc->sc_last_qh->offs + offsetof(uhci_qh_t, qh_hlink), 1109 sizeof(sc->sc_last_qh->qh.qh_hlink), 1110 BUS_DMASYNC_PREWRITE); 1111 } 1112 } 1113 1114 void 1115 uhci_rem_loop(uhci_softc_t *sc) 1116 { 1117 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1118 1119 #ifdef UHCI_DEBUG 1120 if (uhcinoloop) 1121 return; 1122 #endif 1123 if (--sc->sc_loops == 0) { 1124 DPRINTFN(5, "remove loop", 0, 0, 0, 0); 1125 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1126 usb_syncmem(&sc->sc_last_qh->dma, 1127 sc->sc_last_qh->offs + offsetof(uhci_qh_t, qh_hlink), 1128 sizeof(sc->sc_last_qh->qh.qh_hlink), 1129 BUS_DMASYNC_PREWRITE); 1130 } 1131 } 1132 1133 /* Add high speed control QH, called with lock held. */ 1134 void 1135 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1136 { 1137 uhci_soft_qh_t *eqh; 1138 1139 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1140 1141 KASSERT(mutex_owned(&sc->sc_lock)); 1142 1143 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1144 eqh = sc->sc_hctl_end; 1145 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1146 sizeof(eqh->qh.qh_hlink), 1147 BUS_DMASYNC_POSTWRITE); 1148 sqh->hlink = eqh->hlink; 1149 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1150 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1151 BUS_DMASYNC_PREWRITE); 1152 eqh->hlink = sqh; 1153 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1154 sc->sc_hctl_end = sqh; 1155 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1156 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1157 #ifdef UHCI_CTL_LOOP 1158 uhci_add_loop(sc); 1159 #endif 1160 } 1161 1162 /* Remove high speed control QH, called with lock held. */ 1163 void 1164 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1165 { 1166 uhci_soft_qh_t *pqh; 1167 uint32_t elink; 1168 1169 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1170 1171 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1172 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1173 #ifdef UHCI_CTL_LOOP 1174 uhci_rem_loop(sc); 1175 #endif 1176 /* 1177 * The T bit should be set in the elink of the QH so that the HC 1178 * doesn't follow the pointer. This condition may fail if the 1179 * the transferred packet was short so that the QH still points 1180 * at the last used TD. 1181 * In this case we set the T bit and wait a little for the HC 1182 * to stop looking at the TD. 1183 * Note that if the TD chain is large enough, the controller 1184 * may still be looking at the chain at the end of this function. 1185 * uhci_free_std_chain() will make sure the controller stops 1186 * looking at it quickly, but until then we should not change 1187 * sqh->hlink. 1188 */ 1189 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1190 sizeof(sqh->qh.qh_elink), 1191 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1192 elink = le32toh(sqh->qh.qh_elink); 1193 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1194 sizeof(sqh->qh.qh_elink), BUS_DMASYNC_PREREAD); 1195 if (!(elink & UHCI_PTR_T)) { 1196 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1197 usb_syncmem(&sqh->dma, 1198 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1199 sizeof(sqh->qh.qh_elink), 1200 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1201 delay(UHCI_QH_REMOVE_DELAY); 1202 } 1203 1204 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1205 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1206 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1207 pqh->hlink = sqh->hlink; 1208 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1209 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1210 sizeof(pqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1211 delay(UHCI_QH_REMOVE_DELAY); 1212 if (sc->sc_hctl_end == sqh) 1213 sc->sc_hctl_end = pqh; 1214 } 1215 1216 /* Add low speed control QH, called with lock held. */ 1217 void 1218 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1219 { 1220 uhci_soft_qh_t *eqh; 1221 1222 KASSERT(mutex_owned(&sc->sc_lock)); 1223 1224 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1225 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1226 1227 eqh = sc->sc_lctl_end; 1228 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1229 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1230 sqh->hlink = eqh->hlink; 1231 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1232 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1233 BUS_DMASYNC_PREWRITE); 1234 eqh->hlink = sqh; 1235 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1236 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1237 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1238 sc->sc_lctl_end = sqh; 1239 } 1240 1241 /* Remove low speed control QH, called with lock held. */ 1242 void 1243 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1244 { 1245 uhci_soft_qh_t *pqh; 1246 uint32_t elink; 1247 1248 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1249 1250 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1251 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1252 1253 /* See comment in uhci_remove_hs_ctrl() */ 1254 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1255 sizeof(sqh->qh.qh_elink), 1256 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1257 elink = le32toh(sqh->qh.qh_elink); 1258 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1259 sizeof(sqh->qh.qh_elink), BUS_DMASYNC_PREREAD); 1260 if (!(elink & UHCI_PTR_T)) { 1261 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1262 usb_syncmem(&sqh->dma, 1263 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1264 sizeof(sqh->qh.qh_elink), 1265 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1266 delay(UHCI_QH_REMOVE_DELAY); 1267 } 1268 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1269 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1270 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1271 pqh->hlink = sqh->hlink; 1272 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1273 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1274 sizeof(pqh->qh.qh_hlink), 1275 BUS_DMASYNC_PREWRITE); 1276 delay(UHCI_QH_REMOVE_DELAY); 1277 if (sc->sc_lctl_end == sqh) 1278 sc->sc_lctl_end = pqh; 1279 } 1280 1281 /* Add bulk QH, called with lock held. */ 1282 void 1283 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1284 { 1285 uhci_soft_qh_t *eqh; 1286 1287 KASSERT(mutex_owned(&sc->sc_lock)); 1288 1289 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1290 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1291 1292 eqh = sc->sc_bulk_end; 1293 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1294 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1295 sqh->hlink = eqh->hlink; 1296 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1297 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1298 BUS_DMASYNC_PREWRITE); 1299 eqh->hlink = sqh; 1300 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1301 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 1302 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1303 sc->sc_bulk_end = sqh; 1304 uhci_add_loop(sc); 1305 } 1306 1307 /* Remove bulk QH, called with lock held. */ 1308 void 1309 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1310 { 1311 uhci_soft_qh_t *pqh; 1312 1313 KASSERT(mutex_owned(&sc->sc_lock)); 1314 1315 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1316 DPRINTFN(10, "sqh %#jx", (uintptr_t)sqh, 0, 0, 0); 1317 1318 uhci_rem_loop(sc); 1319 /* See comment in uhci_remove_hs_ctrl() */ 1320 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 1321 sizeof(sqh->qh.qh_elink), 1322 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1323 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1324 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1325 usb_syncmem(&sqh->dma, 1326 sqh->offs + offsetof(uhci_qh_t, qh_elink), 1327 sizeof(sqh->qh.qh_elink), 1328 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1329 delay(UHCI_QH_REMOVE_DELAY); 1330 } 1331 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1332 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 1333 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 1334 pqh->hlink = sqh->hlink; 1335 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1336 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 1337 sizeof(pqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 1338 delay(UHCI_QH_REMOVE_DELAY); 1339 if (sc->sc_bulk_end == sqh) 1340 sc->sc_bulk_end = pqh; 1341 } 1342 1343 Static int uhci_intr1(uhci_softc_t *); 1344 1345 int 1346 uhci_intr(void *arg) 1347 { 1348 uhci_softc_t *sc = arg; 1349 int ret = 0; 1350 1351 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1352 1353 mutex_spin_enter(&sc->sc_intr_lock); 1354 1355 if (sc->sc_dying || !device_has_power(sc->sc_dev)) 1356 goto done; 1357 1358 if (sc->sc_bus.ub_usepolling || UREAD2(sc, UHCI_INTR) == 0) { 1359 DPRINTFN(16, "ignored interrupt while polling", 0, 0, 0, 0); 1360 goto done; 1361 } 1362 1363 ret = uhci_intr1(sc); 1364 1365 done: 1366 mutex_spin_exit(&sc->sc_intr_lock); 1367 return ret; 1368 } 1369 1370 int 1371 uhci_intr1(uhci_softc_t *sc) 1372 { 1373 int status; 1374 int ack; 1375 1376 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1377 1378 #ifdef UHCI_DEBUG 1379 if (uhcidebug >= 15) { 1380 DPRINTF("sc %#jx", (uintptr_t)sc, 0, 0, 0); 1381 uhci_dumpregs(sc); 1382 } 1383 #endif 1384 1385 KASSERT(mutex_owned(&sc->sc_intr_lock)); 1386 1387 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1388 /* Check if the interrupt was for us. */ 1389 if (status == 0) 1390 return 0; 1391 1392 if (sc->sc_suspend != PWR_RESUME) { 1393 #ifdef DIAGNOSTIC 1394 printf("%s: interrupt while not operating ignored\n", 1395 device_xname(sc->sc_dev)); 1396 #endif 1397 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1398 return 0; 1399 } 1400 1401 ack = 0; 1402 if (status & UHCI_STS_USBINT) 1403 ack |= UHCI_STS_USBINT; 1404 if (status & UHCI_STS_USBEI) 1405 ack |= UHCI_STS_USBEI; 1406 if (status & UHCI_STS_RD) { 1407 ack |= UHCI_STS_RD; 1408 #ifdef UHCI_DEBUG 1409 printf("%s: resume detect\n", device_xname(sc->sc_dev)); 1410 #endif 1411 } 1412 if (status & UHCI_STS_HSE) { 1413 ack |= UHCI_STS_HSE; 1414 printf("%s: host system error\n", device_xname(sc->sc_dev)); 1415 } 1416 if (status & UHCI_STS_HCPE) { 1417 ack |= UHCI_STS_HCPE; 1418 printf("%s: host controller process error\n", 1419 device_xname(sc->sc_dev)); 1420 } 1421 1422 /* When HCHalted=1 and Run/Stop=0 , it is normal */ 1423 if ((status & UHCI_STS_HCH) && (UREAD2(sc, UHCI_CMD) & UHCI_CMD_RS)) { 1424 /* no acknowledge needed */ 1425 if (!sc->sc_dying) { 1426 printf("%s: host controller halted\n", 1427 device_xname(sc->sc_dev)); 1428 #ifdef UHCI_DEBUG 1429 uhci_dump_all(sc); 1430 #endif 1431 } 1432 sc->sc_dying = 1; 1433 } 1434 1435 if (!ack) 1436 return 0; /* nothing to acknowledge */ 1437 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1438 1439 usb_schedsoftintr(&sc->sc_bus); 1440 1441 DPRINTFN(15, "sc %#jx done", (uintptr_t)sc, 0, 0, 0); 1442 1443 return 1; 1444 } 1445 1446 void 1447 uhci_softintr(void *v) 1448 { 1449 struct usbd_bus *bus = v; 1450 uhci_softc_t *sc = UHCI_BUS2SC(bus); 1451 struct uhci_xfer *ux, *nextux; 1452 ux_completeq_t cq; 1453 1454 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1455 DPRINTF("sc %#jx", (uintptr_t)sc, 0, 0, 0); 1456 1457 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1458 1459 TAILQ_INIT(&cq); 1460 /* 1461 * Interrupts on UHCI really suck. When the host controller 1462 * interrupts because a transfer is completed there is no 1463 * way of knowing which transfer it was. You can scan down 1464 * the TDs and QHs of the previous frame to limit the search, 1465 * but that assumes that the interrupt was not delayed by more 1466 * than 1 ms, which may not always be true (e.g. after debug 1467 * output on a slow console). 1468 * We scan all interrupt descriptors to see if any have 1469 * completed. 1470 */ 1471 TAILQ_FOREACH_SAFE(ux, &sc->sc_intrhead, ux_list, nextux) { 1472 uhci_check_intr(sc, ux, &cq); 1473 } 1474 1475 /* 1476 * We abuse ux_list for the interrupt and complete lists and 1477 * interrupt transfers will get re-added here so use 1478 * the _SAFE version of TAILQ_FOREACH. 1479 */ 1480 TAILQ_FOREACH_SAFE(ux, &cq, ux_list, nextux) { 1481 DPRINTF("ux %#jx", (uintptr_t)ux, 0, 0, 0); 1482 usb_transfer_complete(&ux->ux_xfer); 1483 } 1484 1485 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 1486 } 1487 1488 /* Check for an interrupt. */ 1489 void 1490 uhci_check_intr(uhci_softc_t *sc, struct uhci_xfer *ux, ux_completeq_t *cqp) 1491 { 1492 uhci_soft_td_t *std, *fstd = NULL, *lstd = NULL; 1493 uint32_t status; 1494 1495 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1496 DPRINTFN(15, "ux %#jx", (uintptr_t)ux, 0, 0, 0); 1497 1498 KASSERT(ux != NULL); 1499 1500 struct usbd_xfer *xfer = &ux->ux_xfer; 1501 if (xfer->ux_status == USBD_CANCELLED || 1502 xfer->ux_status == USBD_TIMEOUT) { 1503 DPRINTF("aborted xfer %#jx", (uintptr_t)xfer, 0, 0, 0); 1504 return; 1505 } 1506 1507 switch (ux->ux_type) { 1508 case UX_CTRL: 1509 fstd = ux->ux_setup; 1510 lstd = ux->ux_stat; 1511 break; 1512 case UX_BULK: 1513 case UX_INTR: 1514 case UX_ISOC: 1515 fstd = ux->ux_stdstart; 1516 lstd = ux->ux_stdend; 1517 break; 1518 default: 1519 KASSERT(false); 1520 break; 1521 } 1522 if (fstd == NULL) 1523 return; 1524 1525 KASSERT(lstd != NULL); 1526 1527 usb_syncmem(&lstd->dma, 1528 lstd->offs + offsetof(uhci_td_t, td_status), 1529 sizeof(lstd->td.td_status), 1530 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1531 status = le32toh(lstd->td.td_status); 1532 usb_syncmem(&lstd->dma, 1533 lstd->offs + offsetof(uhci_td_t, td_status), 1534 sizeof(lstd->td.td_status), 1535 BUS_DMASYNC_PREREAD); 1536 1537 /* If the last TD is not marked active we can complete */ 1538 if (!(status & UHCI_TD_ACTIVE)) { 1539 done: 1540 DPRINTFN(12, "ux=%#jx done", (uintptr_t)ux, 0, 0, 0); 1541 uhci_idone(ux, cqp); 1542 return; 1543 } 1544 1545 /* 1546 * If the last TD is still active we need to check whether there 1547 * is an error somewhere in the middle, or whether there was a 1548 * short packet (SPD and not ACTIVE). 1549 */ 1550 DPRINTFN(12, "active ux=%#jx", (uintptr_t)ux, 0, 0, 0); 1551 for (std = fstd; std != lstd; std = std->link.std) { 1552 usb_syncmem(&std->dma, 1553 std->offs + offsetof(uhci_td_t, td_status), 1554 sizeof(std->td.td_status), 1555 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1556 status = le32toh(std->td.td_status); 1557 usb_syncmem(&std->dma, 1558 std->offs + offsetof(uhci_td_t, td_status), 1559 sizeof(std->td.td_status), BUS_DMASYNC_PREREAD); 1560 1561 /* If there's an active TD the xfer isn't done. */ 1562 if (status & UHCI_TD_ACTIVE) { 1563 DPRINTFN(12, "ux=%#jx std=%#jx still active", 1564 (uintptr_t)ux, (uintptr_t)std, 0, 0); 1565 return; 1566 } 1567 1568 /* Any kind of error makes the xfer done. */ 1569 if (status & UHCI_TD_STALLED) 1570 goto done; 1571 1572 /* 1573 * If the data phase of a control transfer is short, we need 1574 * to complete the status stage 1575 */ 1576 1577 if ((status & UHCI_TD_SPD) && ux->ux_type == UX_CTRL) { 1578 struct uhci_pipe *upipe = 1579 UHCI_PIPE2UPIPE(xfer->ux_pipe); 1580 uhci_soft_qh_t *sqh = upipe->ctrl.sqh; 1581 uhci_soft_td_t *stat = upipe->ctrl.stat; 1582 1583 DPRINTFN(12, "ux=%#jx std=%#jx control status" 1584 "phase needs completion", (uintptr_t)ux, 1585 (uintptr_t)ux->ux_stdstart, 0, 0); 1586 1587 sqh->qh.qh_elink = 1588 htole32(stat->physaddr | UHCI_PTR_TD); 1589 usb_syncmem(&sqh->dma, sqh->offs, sizeof(sqh->qh), 1590 BUS_DMASYNC_PREWRITE); 1591 break; 1592 } 1593 1594 /* We want short packets, and it is short: it's done */ 1595 usb_syncmem(&std->dma, 1596 std->offs + offsetof(uhci_td_t, td_token), 1597 sizeof(std->td.td_token), 1598 BUS_DMASYNC_POSTWRITE); 1599 1600 if ((status & UHCI_TD_SPD) && 1601 UHCI_TD_GET_ACTLEN(status) < 1602 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) { 1603 goto done; 1604 } 1605 } 1606 } 1607 1608 /* Called with USB lock held. */ 1609 void 1610 uhci_idone(struct uhci_xfer *ux, ux_completeq_t *cqp) 1611 { 1612 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1613 struct usbd_xfer *xfer = &ux->ux_xfer; 1614 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 1615 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 1616 uhci_soft_td_t *std; 1617 uint32_t status = 0, nstatus; 1618 const bool polling __diagused = sc->sc_bus.ub_usepolling; 1619 int actlen; 1620 1621 KASSERT(polling || mutex_owned(&sc->sc_lock)); 1622 1623 DPRINTFN(12, "ux=%#jx", (uintptr_t)ux, 0, 0, 0); 1624 1625 /* 1626 * Try to claim this xfer for completion. If it has already 1627 * completed or aborted, drop it on the floor. 1628 */ 1629 if (!usbd_xfer_trycomplete(xfer)) 1630 return; 1631 1632 #ifdef DIAGNOSTIC 1633 #ifdef UHCI_DEBUG 1634 if (ux->ux_isdone) { 1635 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1636 uhci_dump_ii(ux); 1637 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1638 } 1639 #endif 1640 KASSERT(!ux->ux_isdone); 1641 KASSERTMSG(!ux->ux_isdone, "xfer %p type %d status %d", xfer, 1642 ux->ux_type, xfer->ux_status); 1643 ux->ux_isdone = true; 1644 #endif 1645 1646 if (xfer->ux_nframes != 0) { 1647 /* Isoc transfer, do things differently. */ 1648 uhci_soft_td_t **stds = upipe->isoc.stds; 1649 int i, n, nframes, len; 1650 1651 DPRINTFN(5, "ux=%#jx isoc ready", (uintptr_t)ux, 0, 0, 0); 1652 1653 nframes = xfer->ux_nframes; 1654 actlen = 0; 1655 n = ux->ux_curframe; 1656 for (i = 0; i < nframes; i++) { 1657 std = stds[n]; 1658 #ifdef UHCI_DEBUG 1659 if (uhcidebug >= 5) { 1660 DPRINTF("isoc TD %jd", i, 0, 0, 0); 1661 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1662 uhci_dump_td(std); 1663 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1664 } 1665 #endif 1666 if (++n >= UHCI_VFRAMELIST_COUNT) 1667 n = 0; 1668 usb_syncmem(&std->dma, 1669 std->offs + offsetof(uhci_td_t, td_status), 1670 sizeof(std->td.td_status), 1671 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1672 status = le32toh(std->td.td_status); 1673 len = UHCI_TD_GET_ACTLEN(status); 1674 xfer->ux_frlengths[i] = len; 1675 actlen += len; 1676 } 1677 upipe->isoc.inuse -= nframes; 1678 xfer->ux_actlen = actlen; 1679 xfer->ux_status = USBD_NORMAL_COMPLETION; 1680 goto end; 1681 } 1682 1683 #ifdef UHCI_DEBUG 1684 DPRINTFN(10, "ux=%#jx, xfer=%#jx, pipe=%#jx ready", (uintptr_t)ux, 1685 (uintptr_t)xfer, (uintptr_t)upipe, 0); 1686 if (uhcidebug >= 10) { 1687 DPRINTF("--- dump start ---", 0, 0, 0, 0); 1688 uhci_dump_tds(ux->ux_stdstart); 1689 DPRINTF("--- dump end ---", 0, 0, 0, 0); 1690 } 1691 #endif 1692 1693 /* The transfer is done, compute actual length and status. */ 1694 actlen = 0; 1695 for (std = ux->ux_stdstart; std != NULL; std = std->link.std) { 1696 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 1697 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1698 nstatus = le32toh(std->td.td_status); 1699 if (nstatus & UHCI_TD_ACTIVE) 1700 break; 1701 1702 status = nstatus; 1703 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1704 UHCI_TD_PID_SETUP) 1705 actlen += UHCI_TD_GET_ACTLEN(status); 1706 else { 1707 /* 1708 * UHCI will report CRCTO in addition to a STALL or NAK 1709 * for a SETUP transaction. See section 3.2.2, "TD 1710 * CONTROL AND STATUS". 1711 */ 1712 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1713 status &= ~UHCI_TD_CRCTO; 1714 } 1715 } 1716 /* If there are left over TDs we need to update the toggle. */ 1717 if (std != NULL) 1718 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1719 1720 status &= UHCI_TD_ERROR; 1721 DPRINTFN(10, "actlen=%jd, status=%#jx", actlen, status, 0, 0); 1722 xfer->ux_actlen = actlen; 1723 if (status != 0) { 1724 1725 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1726 "error, addr=%jd, endpt=0x%02jx", 1727 xfer->ux_pipe->up_dev->ud_addr, 1728 xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress, 1729 0, 0); 1730 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1731 "bitstuff=%jd crcto =%jd nak =%jd babble =%jd", 1732 !!(status & UHCI_TD_BITSTUFF), 1733 !!(status & UHCI_TD_CRCTO), 1734 !!(status & UHCI_TD_NAK), 1735 !!(status & UHCI_TD_BABBLE)); 1736 DPRINTFN((status == UHCI_TD_STALLED) * 10, 1737 "dbuffer =%jd stalled =%jd active =%jd", 1738 !!(status & UHCI_TD_DBUFFER), 1739 !!(status & UHCI_TD_STALLED), 1740 !!(status & UHCI_TD_ACTIVE), 1741 0); 1742 1743 if (status == UHCI_TD_STALLED) 1744 xfer->ux_status = USBD_STALLED; 1745 else 1746 xfer->ux_status = USBD_IOERROR; /* more info XXX */ 1747 } else { 1748 xfer->ux_status = USBD_NORMAL_COMPLETION; 1749 } 1750 1751 end: 1752 uhci_del_intr_list(sc, ux); 1753 if (cqp) 1754 TAILQ_INSERT_TAIL(cqp, ux, ux_list); 1755 1756 KASSERT(polling || mutex_owned(&sc->sc_lock)); 1757 DPRINTFN(12, "ux=%#jx done", (uintptr_t)ux, 0, 0, 0); 1758 } 1759 1760 void 1761 uhci_poll(struct usbd_bus *bus) 1762 { 1763 uhci_softc_t *sc = UHCI_BUS2SC(bus); 1764 1765 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1766 mutex_spin_enter(&sc->sc_intr_lock); 1767 uhci_intr1(sc); 1768 mutex_spin_exit(&sc->sc_intr_lock); 1769 } 1770 } 1771 1772 void 1773 uhci_reset(uhci_softc_t *sc) 1774 { 1775 int n; 1776 1777 UHCICMD(sc, UHCI_CMD_HCRESET); 1778 /* The reset bit goes low when the controller is done. */ 1779 for (n = 0; n < UHCI_RESET_TIMEOUT && 1780 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1781 usb_delay_ms(&sc->sc_bus, 1); 1782 if (n >= UHCI_RESET_TIMEOUT) 1783 printf("%s: controller did not reset\n", 1784 device_xname(sc->sc_dev)); 1785 } 1786 1787 usbd_status 1788 uhci_run(uhci_softc_t *sc, int run, int locked) 1789 { 1790 int n, running; 1791 uint16_t cmd; 1792 1793 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1794 1795 run = run != 0; 1796 if (!locked) 1797 mutex_spin_enter(&sc->sc_intr_lock); 1798 1799 DPRINTF("setting run=%jd", run, 0, 0, 0); 1800 cmd = UREAD2(sc, UHCI_CMD); 1801 if (run) 1802 cmd |= UHCI_CMD_RS; 1803 else 1804 cmd &= ~UHCI_CMD_RS; 1805 UHCICMD(sc, cmd); 1806 for (n = 0; n < 10; n++) { 1807 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1808 /* return when we've entered the state we want */ 1809 if (run == running) { 1810 if (!locked) 1811 mutex_spin_exit(&sc->sc_intr_lock); 1812 DPRINTF("done cmd=%#jx sts=%#jx", 1813 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS), 0, 0); 1814 return USBD_NORMAL_COMPLETION; 1815 } 1816 usb_delay_ms_locked(&sc->sc_bus, 1, &sc->sc_intr_lock); 1817 } 1818 if (!locked) 1819 mutex_spin_exit(&sc->sc_intr_lock); 1820 printf("%s: cannot %s\n", device_xname(sc->sc_dev), 1821 run ? "start" : "stop"); 1822 return USBD_IOERROR; 1823 } 1824 1825 /* 1826 * Memory management routines. 1827 * uhci_alloc_std allocates TDs 1828 * uhci_alloc_sqh allocates QHs 1829 * These two routines do their own free list management, 1830 * partly for speed, partly because allocating DMAable memory 1831 * has page size granularity so much memory would be wasted if 1832 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1833 */ 1834 1835 uhci_soft_td_t * 1836 uhci_alloc_std(uhci_softc_t *sc) 1837 { 1838 uhci_soft_td_t *std; 1839 usbd_status err; 1840 int i, offs; 1841 usb_dma_t dma; 1842 1843 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1844 1845 mutex_enter(&sc->sc_lock); 1846 if (sc->sc_freetds == NULL) { 1847 DPRINTFN(2, "allocating chunk", 0, 0, 0, 0); 1848 mutex_exit(&sc->sc_lock); 1849 1850 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1851 UHCI_TD_ALIGN, USBMALLOC_COHERENT, &dma); 1852 if (err) 1853 return NULL; 1854 1855 mutex_enter(&sc->sc_lock); 1856 for (i = 0; i < UHCI_STD_CHUNK; i++) { 1857 offs = i * UHCI_STD_SIZE; 1858 std = KERNADDR(&dma, offs); 1859 std->physaddr = DMAADDR(&dma, offs); 1860 std->dma = dma; 1861 std->offs = offs; 1862 std->link.std = sc->sc_freetds; 1863 sc->sc_freetds = std; 1864 } 1865 } 1866 std = sc->sc_freetds; 1867 sc->sc_freetds = std->link.std; 1868 mutex_exit(&sc->sc_lock); 1869 1870 memset(&std->td, 0, sizeof(uhci_td_t)); 1871 1872 return std; 1873 } 1874 1875 #define TD_IS_FREE 0x12345678 1876 1877 void 1878 uhci_free_std_locked(uhci_softc_t *sc, uhci_soft_td_t *std) 1879 { 1880 KASSERT(mutex_owned(&sc->sc_lock)); 1881 1882 #ifdef DIAGNOSTIC 1883 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1884 printf("%s: freeing free TD %p\n", __func__, std); 1885 return; 1886 } 1887 std->td.td_token = htole32(TD_IS_FREE); 1888 #endif 1889 1890 std->link.std = sc->sc_freetds; 1891 sc->sc_freetds = std; 1892 } 1893 1894 void 1895 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1896 { 1897 mutex_enter(&sc->sc_lock); 1898 uhci_free_std_locked(sc, std); 1899 mutex_exit(&sc->sc_lock); 1900 } 1901 1902 uhci_soft_qh_t * 1903 uhci_alloc_sqh(uhci_softc_t *sc) 1904 { 1905 uhci_soft_qh_t *sqh; 1906 usbd_status err; 1907 int i, offs; 1908 usb_dma_t dma; 1909 1910 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 1911 1912 mutex_enter(&sc->sc_lock); 1913 if (sc->sc_freeqhs == NULL) { 1914 DPRINTFN(2, "allocating chunk", 0, 0, 0, 0); 1915 mutex_exit(&sc->sc_lock); 1916 1917 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1918 UHCI_QH_ALIGN, USBMALLOC_COHERENT, &dma); 1919 if (err) 1920 return NULL; 1921 1922 mutex_enter(&sc->sc_lock); 1923 for (i = 0; i < UHCI_SQH_CHUNK; i++) { 1924 offs = i * UHCI_SQH_SIZE; 1925 sqh = KERNADDR(&dma, offs); 1926 sqh->physaddr = DMAADDR(&dma, offs); 1927 sqh->dma = dma; 1928 sqh->offs = offs; 1929 sqh->hlink = sc->sc_freeqhs; 1930 sc->sc_freeqhs = sqh; 1931 } 1932 } 1933 sqh = sc->sc_freeqhs; 1934 sc->sc_freeqhs = sqh->hlink; 1935 mutex_exit(&sc->sc_lock); 1936 1937 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1938 1939 return sqh; 1940 } 1941 1942 void 1943 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1944 { 1945 KASSERT(mutex_owned(&sc->sc_lock)); 1946 1947 sqh->hlink = sc->sc_freeqhs; 1948 sc->sc_freeqhs = sqh; 1949 } 1950 1951 #if 0 1952 void 1953 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1954 uhci_soft_td_t *stdend) 1955 { 1956 uhci_soft_td_t *p; 1957 uint32_t td_link; 1958 1959 /* 1960 * to avoid race condition with the controller which may be looking 1961 * at this chain, we need to first invalidate all links, and 1962 * then wait for the controller to move to another queue 1963 */ 1964 for (p = std; p != stdend; p = p->link.std) { 1965 usb_syncmem(&p->dma, 1966 p->offs + offsetof(uhci_td_t, td_link), 1967 sizeof(p->td.td_link), 1968 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 1969 td_link = le32toh(p->td.td_link); 1970 usb_syncmem(&p->dma, 1971 p->offs + offsetof(uhci_td_t, td_link), 1972 sizeof(p->td.td_link), 1973 BUS_DMASYNC_PREREAD); 1974 if ((td_link & UHCI_PTR_T) == 0) { 1975 p->td.td_link = htole32(UHCI_PTR_T); 1976 usb_syncmem(&p->dma, 1977 p->offs + offsetof(uhci_td_t, td_link), 1978 sizeof(p->td.td_link), 1979 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1980 } 1981 } 1982 delay(UHCI_QH_REMOVE_DELAY); 1983 1984 for (; std != stdend; std = p) { 1985 p = std->link.std; 1986 uhci_free_std(sc, std); 1987 } 1988 } 1989 #endif 1990 1991 int 1992 uhci_alloc_std_chain(uhci_softc_t *sc, struct usbd_xfer *xfer, int len, 1993 int rd, uhci_soft_td_t **sp) 1994 { 1995 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 1996 uint16_t flags = xfer->ux_flags; 1997 uhci_soft_td_t *p; 1998 1999 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2000 2001 DPRINTFN(8, "xfer=%#jx pipe=%#jx", (uintptr_t)xfer, 2002 (uintptr_t)xfer->ux_pipe, 0, 0); 2003 2004 ASSERT_SLEEPABLE(); 2005 KASSERT(sp); 2006 2007 int maxp = UGETW(xfer->ux_pipe->up_endpoint->ue_edesc->wMaxPacketSize); 2008 if (maxp == 0) { 2009 printf("%s: maxp=0\n", __func__); 2010 return EINVAL; 2011 } 2012 size_t ntd = howmany(len, maxp); 2013 /* 2014 * if our transfer is bigger than PAGE_SIZE and maxp not a factor of 2015 * PAGE_SIZE then we will need another TD per page. 2016 */ 2017 if (len > PAGE_SIZE && (PAGE_SIZE % maxp) != 0) { 2018 ntd += howmany(len, PAGE_SIZE); 2019 } 2020 2021 /* 2022 * Might need one more TD if we're writing a ZLP 2023 */ 2024 if (!rd && (flags & USBD_FORCE_SHORT_XFER)) { 2025 ntd++; 2026 } 2027 DPRINTFN(10, "maxp=%jd ntd=%jd", maxp, ntd, 0, 0); 2028 2029 uxfer->ux_stds = NULL; 2030 uxfer->ux_nstd = ntd; 2031 if (ntd == 0) { 2032 *sp = NULL; 2033 DPRINTF("ntd=0", 0, 0, 0, 0); 2034 return 0; 2035 } 2036 uxfer->ux_stds = kmem_alloc(sizeof(uhci_soft_td_t *) * ntd, 2037 KM_SLEEP); 2038 2039 for (int i = 0; i < ntd; i++) { 2040 p = uhci_alloc_std(sc); 2041 if (p == NULL) { 2042 if (i != 0) { 2043 uxfer->ux_nstd = i; 2044 uhci_free_stds(sc, uxfer); 2045 } 2046 kmem_free(uxfer->ux_stds, 2047 sizeof(uhci_soft_td_t *) * ntd); 2048 return ENOMEM; 2049 } 2050 uxfer->ux_stds[i] = p; 2051 } 2052 2053 *sp = uxfer->ux_stds[0]; 2054 2055 return 0; 2056 } 2057 2058 Static void 2059 uhci_free_stds(uhci_softc_t *sc, struct uhci_xfer *ux) 2060 { 2061 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2062 2063 DPRINTFN(8, "ux=%#jx", (uintptr_t)ux, 0, 0, 0); 2064 2065 mutex_enter(&sc->sc_lock); 2066 for (size_t i = 0; i < ux->ux_nstd; i++) { 2067 uhci_soft_td_t *std = ux->ux_stds[i]; 2068 #ifdef DIAGNOSTIC 2069 if (le32toh(std->td.td_token) == TD_IS_FREE) { 2070 printf("%s: freeing free TD %p\n", __func__, std); 2071 return; 2072 } 2073 std->td.td_token = htole32(TD_IS_FREE); 2074 #endif 2075 ux->ux_stds[i]->link.std = sc->sc_freetds; 2076 sc->sc_freetds = std; 2077 } 2078 mutex_exit(&sc->sc_lock); 2079 } 2080 2081 2082 Static void 2083 uhci_reset_std_chain(uhci_softc_t *sc, struct usbd_xfer *xfer, 2084 int length, int isread, int *toggle, uhci_soft_td_t **lstd) 2085 { 2086 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2087 struct usbd_pipe *pipe = xfer->ux_pipe; 2088 usb_dma_t *dma = &xfer->ux_dmabuf; 2089 uint16_t flags = xfer->ux_flags; 2090 uhci_soft_td_t *std, *prev; 2091 int len = length; 2092 int tog = *toggle; 2093 int maxp; 2094 uint32_t status; 2095 size_t i, offs; 2096 2097 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2098 DPRINTFN(8, "xfer=%#jx len %jd isread %jd toggle %jd", (uintptr_t)xfer, 2099 len, isread, *toggle); 2100 2101 KASSERT(len != 0 || (!isread && (flags & USBD_FORCE_SHORT_XFER))); 2102 2103 maxp = UGETW(pipe->up_endpoint->ue_edesc->wMaxPacketSize); 2104 KASSERT(maxp != 0); 2105 2106 int addr = xfer->ux_pipe->up_dev->ud_addr; 2107 int endpt = xfer->ux_pipe->up_endpoint->ue_edesc->bEndpointAddress; 2108 2109 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 2110 if (pipe->up_dev->ud_speed == USB_SPEED_LOW) 2111 status |= UHCI_TD_LS; 2112 if (flags & USBD_SHORT_XFER_OK) 2113 status |= UHCI_TD_SPD; 2114 usb_syncmem(dma, 0, len, 2115 isread ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2116 std = prev = NULL; 2117 for (offs = i = 0; len != 0 && i < uxfer->ux_nstd; i++, prev = std) { 2118 int l = len; 2119 std = uxfer->ux_stds[i]; 2120 2121 const bus_addr_t sbp = DMAADDR(dma, offs); 2122 const bus_addr_t ebp = DMAADDR(dma, offs + l - 1); 2123 if (((sbp ^ ebp) & ~PAGE_MASK) != 0) 2124 l = PAGE_SIZE - (DMAADDR(dma, offs) & PAGE_MASK); 2125 2126 if (l > maxp) 2127 l = maxp; 2128 2129 if (prev) { 2130 prev->link.std = std; 2131 prev->td.td_link = htole32( 2132 std->physaddr | UHCI_PTR_VF | UHCI_PTR_TD 2133 ); 2134 usb_syncmem(&prev->dma, prev->offs, sizeof(prev->td), 2135 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2136 } 2137 2138 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2139 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 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(isread ? UHCI_TD_PID_IN : UHCI_TD_PID_OUT) | 2147 UHCI_TD_SET_DT(tog) | 2148 UHCI_TD_SET_MAXLEN(l) 2149 ); 2150 std->td.td_buffer = htole32(DMAADDR(dma, offs)); 2151 2152 std->link.std = NULL; 2153 2154 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2155 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2156 tog ^= 1; 2157 2158 offs += l; 2159 len -= l; 2160 } 2161 KASSERTMSG(len == 0, "xfer %p alen %d len %d mps %d ux_nqtd %zu i %zu", 2162 xfer, length, len, maxp, uxfer->ux_nstd, i); 2163 2164 if (!isread && 2165 (flags & USBD_FORCE_SHORT_XFER) && 2166 length % maxp == 0) { 2167 /* Force a 0 length transfer at the end. */ 2168 KASSERTMSG(i < uxfer->ux_nstd, "i=%zu nstd=%zu", i, 2169 uxfer->ux_nstd); 2170 std = uxfer->ux_stds[i++]; 2171 2172 std->td.td_link = htole32(UHCI_PTR_T | UHCI_PTR_VF | UHCI_PTR_TD); 2173 std->td.td_status = htole32(status); 2174 std->td.td_token = htole32( 2175 UHCI_TD_SET_ENDPT(UE_GET_ADDR(endpt)) | 2176 UHCI_TD_SET_DEVADDR(addr) | 2177 UHCI_TD_SET_PID(UHCI_TD_PID_OUT) | 2178 UHCI_TD_SET_DT(tog) | 2179 UHCI_TD_SET_MAXLEN(0) 2180 ); 2181 std->td.td_buffer = 0; 2182 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2183 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2184 2185 std->link.std = NULL; 2186 if (prev) { 2187 prev->link.std = std; 2188 prev->td.td_link = htole32( 2189 std->physaddr | UHCI_PTR_VF | UHCI_PTR_TD 2190 ); 2191 usb_syncmem(&prev->dma, prev->offs, sizeof(prev->td), 2192 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2193 } 2194 tog ^= 1; 2195 } 2196 *lstd = std; 2197 *toggle = tog; 2198 } 2199 2200 void 2201 uhci_device_clear_toggle(struct usbd_pipe *pipe) 2202 { 2203 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2204 upipe->nexttoggle = 0; 2205 } 2206 2207 void 2208 uhci_noop(struct usbd_pipe *pipe) 2209 { 2210 } 2211 2212 int 2213 uhci_device_bulk_init(struct usbd_xfer *xfer) 2214 { 2215 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2216 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2217 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 2218 int endpt = ed->bEndpointAddress; 2219 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2220 int len = xfer->ux_bufsize; 2221 int err = 0; 2222 2223 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2224 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, len, 2225 xfer->ux_flags, 0); 2226 2227 if (sc->sc_dying) 2228 return USBD_IOERROR; 2229 2230 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2231 2232 uxfer->ux_type = UX_BULK; 2233 err = uhci_alloc_std_chain(sc, xfer, len, isread, &uxfer->ux_stdstart); 2234 if (err) 2235 return err; 2236 2237 #ifdef UHCI_DEBUG 2238 if (uhcidebug >= 10) { 2239 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2240 uhci_dump_tds(uxfer->ux_stdstart); 2241 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2242 } 2243 #endif 2244 2245 return 0; 2246 } 2247 2248 Static void 2249 uhci_device_bulk_fini(struct usbd_xfer *xfer) 2250 { 2251 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2252 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2253 2254 KASSERT(ux->ux_type == UX_BULK); 2255 2256 if (ux->ux_nstd) { 2257 uhci_free_stds(sc, ux); 2258 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2259 } 2260 } 2261 2262 usbd_status 2263 uhci_device_bulk_transfer(struct usbd_xfer *xfer) 2264 { 2265 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2266 usbd_status err; 2267 2268 /* Insert last in queue. */ 2269 mutex_enter(&sc->sc_lock); 2270 err = usb_insert_transfer(xfer); 2271 mutex_exit(&sc->sc_lock); 2272 if (err) 2273 return err; 2274 2275 /* 2276 * Pipe isn't running (otherwise err would be USBD_INPROG), 2277 * so start it first. 2278 */ 2279 return uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2280 } 2281 2282 usbd_status 2283 uhci_device_bulk_start(struct usbd_xfer *xfer) 2284 { 2285 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2286 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2287 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2288 uhci_soft_td_t *data, *dataend; 2289 uhci_soft_qh_t *sqh; 2290 const bool polling = sc->sc_bus.ub_usepolling; 2291 int len; 2292 int endpt; 2293 int isread; 2294 2295 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2296 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2297 xfer->ux_length, xfer->ux_flags, 0); 2298 2299 if (sc->sc_dying) 2300 return USBD_IOERROR; 2301 2302 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2303 KASSERT(xfer->ux_length <= xfer->ux_bufsize); 2304 2305 len = xfer->ux_length; 2306 endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2307 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2308 sqh = upipe->bulk.sqh; 2309 2310 /* Take lock here to protect nexttoggle */ 2311 if (!polling) 2312 mutex_enter(&sc->sc_lock); 2313 2314 uhci_reset_std_chain(sc, xfer, len, isread, &upipe->nexttoggle, 2315 &dataend); 2316 2317 data = ux->ux_stdstart; 2318 ux->ux_stdend = dataend; 2319 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2320 usb_syncmem(&dataend->dma, 2321 dataend->offs + offsetof(uhci_td_t, td_status), 2322 sizeof(dataend->td.td_status), 2323 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2324 2325 #ifdef UHCI_DEBUG 2326 if (uhcidebug >= 10) { 2327 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2328 DPRINTFN(10, "before transfer", 0, 0, 0, 0); 2329 uhci_dump_tds(data); 2330 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2331 } 2332 #endif 2333 2334 KASSERT(ux->ux_isdone); 2335 #ifdef DIAGNOSTIC 2336 ux->ux_isdone = false; 2337 #endif 2338 2339 sqh->elink = data; 2340 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2341 /* uhci_add_bulk() will do usb_syncmem(sqh) */ 2342 2343 uhci_add_bulk(sc, sqh); 2344 uhci_add_intr_list(sc, ux); 2345 usbd_xfer_schedule_timeout(xfer); 2346 xfer->ux_status = USBD_IN_PROGRESS; 2347 if (!polling) 2348 mutex_exit(&sc->sc_lock); 2349 2350 return USBD_IN_PROGRESS; 2351 } 2352 2353 /* Abort a device bulk request. */ 2354 void 2355 uhci_device_bulk_abort(struct usbd_xfer *xfer) 2356 { 2357 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2358 2359 KASSERT(mutex_owned(&sc->sc_lock)); 2360 2361 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2362 2363 usbd_xfer_abort(xfer); 2364 } 2365 2366 /* 2367 * To allow the hardware time to notice we simply wait. 2368 */ 2369 Static void 2370 uhci_abortx(struct usbd_xfer *xfer) 2371 { 2372 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2373 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2374 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2375 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2376 uhci_soft_td_t *std; 2377 2378 DPRINTFN(1,"xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 2379 2380 KASSERT(mutex_owned(&sc->sc_lock)); 2381 ASSERT_SLEEPABLE(); 2382 2383 KASSERTMSG((xfer->ux_status == USBD_CANCELLED || 2384 xfer->ux_status == USBD_TIMEOUT), 2385 "bad abort status: %d", xfer->ux_status); 2386 2387 /* 2388 * If we're dying, skip the hardware action and just notify the 2389 * software that we're done. 2390 */ 2391 if (sc->sc_dying) { 2392 DPRINTFN(4, "xfer %#jx dying %ju", (uintptr_t)xfer, 2393 xfer->ux_status, 0, 0); 2394 goto dying; 2395 } 2396 2397 /* 2398 * HC Step 1: Make interrupt routine and hardware ignore xfer. 2399 */ 2400 uhci_del_intr_list(sc, ux); 2401 2402 DPRINTF("stop ux=%#jx", (uintptr_t)ux, 0, 0, 0); 2403 for (std = ux->ux_stdstart; std != NULL; std = std->link.std) { 2404 usb_syncmem(&std->dma, 2405 std->offs + offsetof(uhci_td_t, td_status), 2406 sizeof(std->td.td_status), 2407 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 2408 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2409 usb_syncmem(&std->dma, 2410 std->offs + offsetof(uhci_td_t, td_status), 2411 sizeof(std->td.td_status), 2412 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2413 } 2414 2415 /* 2416 * HC Step 2: Wait until we know hardware has finished any possible 2417 * use of the xfer. 2418 */ 2419 /* Hardware finishes in 1ms */ 2420 usb_delay_ms_locked(upipe->pipe.up_dev->ud_bus, 2, &sc->sc_lock); 2421 2422 /* 2423 * HC Step 3: Notify completion to waiting xfers. 2424 */ 2425 dying: 2426 #ifdef DIAGNOSTIC 2427 ux->ux_isdone = true; 2428 #endif 2429 usb_transfer_complete(xfer); 2430 DPRINTFN(14, "end", 0, 0, 0, 0); 2431 2432 KASSERT(mutex_owned(&sc->sc_lock)); 2433 } 2434 2435 /* Close a device bulk pipe. */ 2436 void 2437 uhci_device_bulk_close(struct usbd_pipe *pipe) 2438 { 2439 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2440 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2441 2442 KASSERT(mutex_owned(&sc->sc_lock)); 2443 2444 uhci_free_sqh(sc, upipe->bulk.sqh); 2445 2446 pipe->up_endpoint->ue_toggle = upipe->nexttoggle; 2447 } 2448 2449 int 2450 uhci_device_ctrl_init(struct usbd_xfer *xfer) 2451 { 2452 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2453 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2454 usb_device_request_t *req = &xfer->ux_request; 2455 struct usbd_device *dev = upipe->pipe.up_dev; 2456 uhci_softc_t *sc = dev->ud_bus->ub_hcpriv; 2457 uhci_soft_td_t *data = NULL; 2458 int len; 2459 usbd_status err; 2460 int isread; 2461 2462 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2463 DPRINTFN(3, "xfer=%#jx len=%jd, addr=%jd, endpt=%jd", 2464 (uintptr_t)xfer, xfer->ux_bufsize, dev->ud_addr, 2465 upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress); 2466 2467 isread = req->bmRequestType & UT_READ; 2468 len = xfer->ux_bufsize; 2469 2470 uxfer->ux_type = UX_CTRL; 2471 /* Set up data transaction */ 2472 if (len != 0) { 2473 err = uhci_alloc_std_chain(sc, xfer, len, isread, &data); 2474 if (err) 2475 return err; 2476 } 2477 /* Set up interrupt info. */ 2478 uxfer->ux_setup = upipe->ctrl.setup; 2479 uxfer->ux_stat = upipe->ctrl.stat; 2480 uxfer->ux_data = data; 2481 2482 return 0; 2483 } 2484 2485 Static void 2486 uhci_device_ctrl_fini(struct usbd_xfer *xfer) 2487 { 2488 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2489 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2490 2491 KASSERT(ux->ux_type == UX_CTRL); 2492 2493 if (ux->ux_nstd) { 2494 uhci_free_stds(sc, ux); 2495 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2496 } 2497 } 2498 2499 usbd_status 2500 uhci_device_ctrl_transfer(struct usbd_xfer *xfer) 2501 { 2502 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2503 usbd_status err; 2504 2505 /* Insert last in queue. */ 2506 mutex_enter(&sc->sc_lock); 2507 err = usb_insert_transfer(xfer); 2508 mutex_exit(&sc->sc_lock); 2509 if (err) 2510 return err; 2511 2512 /* 2513 * Pipe isn't running (otherwise err would be USBD_INPROG), 2514 * so start it first. 2515 */ 2516 return uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2517 } 2518 2519 usbd_status 2520 uhci_device_ctrl_start(struct usbd_xfer *xfer) 2521 { 2522 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2523 struct uhci_xfer *uxfer = UHCI_XFER2UXFER(xfer); 2524 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2525 usb_device_request_t *req = &xfer->ux_request; 2526 struct usbd_device *dev = upipe->pipe.up_dev; 2527 int addr = dev->ud_addr; 2528 int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2529 uhci_soft_td_t *setup, *stat, *next, *dataend; 2530 uhci_soft_qh_t *sqh; 2531 const bool polling = sc->sc_bus.ub_usepolling; 2532 int len; 2533 int isread; 2534 2535 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2536 2537 if (sc->sc_dying) 2538 return USBD_IOERROR; 2539 2540 KASSERT(xfer->ux_rqflags & URQ_REQUEST); 2541 2542 DPRINTFN(3, "type=0x%02jx, request=0x%02jx, " 2543 "wValue=0x%04jx, wIndex=0x%04jx", 2544 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2545 UGETW(req->wIndex)); 2546 DPRINTFN(3, "len=%jd, addr=%jd, endpt=%jd", 2547 UGETW(req->wLength), dev->ud_addr, endpt, 0); 2548 2549 isread = req->bmRequestType & UT_READ; 2550 len = UGETW(req->wLength); 2551 2552 setup = upipe->ctrl.setup; 2553 stat = upipe->ctrl.stat; 2554 sqh = upipe->ctrl.sqh; 2555 2556 memcpy(KERNADDR(&upipe->ctrl.reqdma, 0), req, sizeof(*req)); 2557 usb_syncmem(&upipe->ctrl.reqdma, 0, sizeof(*req), BUS_DMASYNC_PREWRITE); 2558 2559 if (!polling) 2560 mutex_enter(&sc->sc_lock); 2561 2562 /* Set up data transaction */ 2563 if (len != 0) { 2564 upipe->nexttoggle = 1; 2565 next = uxfer->ux_data; 2566 uhci_reset_std_chain(sc, xfer, len, isread, 2567 &upipe->nexttoggle, &dataend); 2568 dataend->link.std = stat; 2569 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_TD); 2570 usb_syncmem(&dataend->dma, 2571 dataend->offs + offsetof(uhci_td_t, td_link), 2572 sizeof(dataend->td.td_link), 2573 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2574 } else { 2575 next = stat; 2576 } 2577 2578 const uint32_t status = UHCI_TD_ZERO_ACTLEN( 2579 UHCI_TD_SET_ERRCNT(3) | 2580 UHCI_TD_ACTIVE | 2581 (dev->ud_speed == USB_SPEED_LOW ? UHCI_TD_LS : 0) 2582 ); 2583 setup->link.std = next; 2584 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_TD); 2585 setup->td.td_status = htole32(status); 2586 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof(*req), endpt, addr)); 2587 setup->td.td_buffer = htole32(DMAADDR(&upipe->ctrl.reqdma, 0)); 2588 2589 usb_syncmem(&setup->dma, setup->offs, sizeof(setup->td), 2590 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2591 2592 stat->link.std = NULL; 2593 stat->td.td_link = htole32(UHCI_PTR_T); 2594 stat->td.td_status = htole32(status | UHCI_TD_IOC); 2595 stat->td.td_token = 2596 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2597 UHCI_TD_IN (0, endpt, addr, 1)); 2598 stat->td.td_buffer = htole32(0); 2599 usb_syncmem(&stat->dma, stat->offs, sizeof(stat->td), 2600 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2601 2602 #ifdef UHCI_DEBUG 2603 if (uhcidebug >= 10) { 2604 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2605 DPRINTF("before transfer", 0, 0, 0, 0); 2606 uhci_dump_tds(setup); 2607 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2608 } 2609 #endif 2610 2611 /* Set up interrupt info. */ 2612 uxfer->ux_setup = setup; 2613 uxfer->ux_stat = stat; 2614 KASSERT(uxfer->ux_isdone); 2615 #ifdef DIAGNOSTIC 2616 uxfer->ux_isdone = false; 2617 #endif 2618 2619 sqh->elink = setup; 2620 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2621 /* uhci_add_?s_ctrl() will do usb_syncmem(sqh) */ 2622 2623 if (dev->ud_speed == USB_SPEED_LOW) 2624 uhci_add_ls_ctrl(sc, sqh); 2625 else 2626 uhci_add_hs_ctrl(sc, sqh); 2627 uhci_add_intr_list(sc, uxfer); 2628 #ifdef UHCI_DEBUG 2629 if (uhcidebug >= 12) { 2630 uhci_soft_td_t *std; 2631 uhci_soft_qh_t *xqh; 2632 uhci_soft_qh_t *sxqh; 2633 int maxqh = 0; 2634 uhci_physaddr_t link; 2635 DPRINTFN(12, "--- dump start ---", 0, 0, 0, 0); 2636 DPRINTFN(12, "follow from [0]", 0, 0, 0, 0); 2637 for (std = sc->sc_vframes[0].htd, link = 0; 2638 (link & UHCI_PTR_QH) == 0; 2639 std = std->link.std) { 2640 link = le32toh(std->td.td_link); 2641 uhci_dump_td(std); 2642 } 2643 sxqh = (uhci_soft_qh_t *)std; 2644 uhci_dump_qh(sxqh); 2645 for (xqh = sxqh; 2646 xqh != NULL; 2647 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2648 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2649 uhci_dump_qh(xqh); 2650 } 2651 DPRINTFN(12, "Enqueued QH:", 0, 0, 0, 0); 2652 uhci_dump_qh(sqh); 2653 uhci_dump_tds(sqh->elink); 2654 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2655 } 2656 #endif 2657 usbd_xfer_schedule_timeout(xfer); 2658 xfer->ux_status = USBD_IN_PROGRESS; 2659 if (!polling) 2660 mutex_exit(&sc->sc_lock); 2661 2662 return USBD_IN_PROGRESS; 2663 } 2664 2665 int 2666 uhci_device_intr_init(struct usbd_xfer *xfer) 2667 { 2668 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2669 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2670 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 2671 int endpt = ed->bEndpointAddress; 2672 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2673 int len = xfer->ux_bufsize; 2674 int err; 2675 2676 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2677 2678 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2679 xfer->ux_length, xfer->ux_flags, 0); 2680 2681 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2682 KASSERT(len != 0); 2683 2684 ux->ux_type = UX_INTR; 2685 ux->ux_nstd = 0; 2686 err = uhci_alloc_std_chain(sc, xfer, len, isread, &ux->ux_stdstart); 2687 2688 return err; 2689 } 2690 2691 Static void 2692 uhci_device_intr_fini(struct usbd_xfer *xfer) 2693 { 2694 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2695 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2696 2697 KASSERT(ux->ux_type == UX_INTR); 2698 2699 if (ux->ux_nstd) { 2700 uhci_free_stds(sc, ux); 2701 kmem_free(ux->ux_stds, sizeof(uhci_soft_td_t *) * ux->ux_nstd); 2702 } 2703 } 2704 2705 usbd_status 2706 uhci_device_intr_transfer(struct usbd_xfer *xfer) 2707 { 2708 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2709 usbd_status err; 2710 2711 /* Insert last in queue. */ 2712 mutex_enter(&sc->sc_lock); 2713 err = usb_insert_transfer(xfer); 2714 mutex_exit(&sc->sc_lock); 2715 if (err) 2716 return err; 2717 2718 /* 2719 * Pipe isn't running (otherwise err would be USBD_INPROG), 2720 * so start it first. 2721 */ 2722 return uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 2723 } 2724 2725 usbd_status 2726 uhci_device_intr_start(struct usbd_xfer *xfer) 2727 { 2728 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2729 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2730 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2731 uhci_soft_td_t *data, *dataend; 2732 uhci_soft_qh_t *sqh; 2733 const bool polling = sc->sc_bus.ub_usepolling; 2734 int isread, endpt; 2735 int i; 2736 2737 if (sc->sc_dying) 2738 return USBD_IOERROR; 2739 2740 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2741 2742 DPRINTFN(3, "xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, 2743 xfer->ux_length, xfer->ux_flags, 0); 2744 2745 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2746 KASSERT(xfer->ux_length <= xfer->ux_bufsize); 2747 2748 endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 2749 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2750 2751 data = ux->ux_stdstart; 2752 2753 KASSERT(ux->ux_isdone); 2754 #ifdef DIAGNOSTIC 2755 ux->ux_isdone = false; 2756 #endif 2757 2758 /* Take lock to protect nexttoggle */ 2759 if (!polling) 2760 mutex_enter(&sc->sc_lock); 2761 uhci_reset_std_chain(sc, xfer, xfer->ux_length, isread, 2762 &upipe->nexttoggle, &dataend); 2763 2764 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2765 usb_syncmem(&dataend->dma, 2766 dataend->offs + offsetof(uhci_td_t, td_status), 2767 sizeof(dataend->td.td_status), 2768 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2769 ux->ux_stdend = dataend; 2770 2771 #ifdef UHCI_DEBUG 2772 if (uhcidebug >= 10) { 2773 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2774 uhci_dump_tds(data); 2775 uhci_dump_qh(upipe->intr.qhs[0]); 2776 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2777 } 2778 #endif 2779 2780 DPRINTFN(10, "qhs[0]=%#jx", (uintptr_t)upipe->intr.qhs[0], 0, 0, 0); 2781 for (i = 0; i < upipe->intr.npoll; i++) { 2782 sqh = upipe->intr.qhs[i]; 2783 sqh->elink = data; 2784 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2785 usb_syncmem(&sqh->dma, 2786 sqh->offs + offsetof(uhci_qh_t, qh_elink), 2787 sizeof(sqh->qh.qh_elink), 2788 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2789 } 2790 uhci_add_intr_list(sc, ux); 2791 xfer->ux_status = USBD_IN_PROGRESS; 2792 if (!polling) 2793 mutex_exit(&sc->sc_lock); 2794 2795 #ifdef UHCI_DEBUG 2796 if (uhcidebug >= 10) { 2797 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2798 uhci_dump_tds(data); 2799 uhci_dump_qh(upipe->intr.qhs[0]); 2800 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2801 } 2802 #endif 2803 2804 return USBD_IN_PROGRESS; 2805 } 2806 2807 /* Abort a device control request. */ 2808 void 2809 uhci_device_ctrl_abort(struct usbd_xfer *xfer) 2810 { 2811 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2812 2813 KASSERT(mutex_owned(&sc->sc_lock)); 2814 2815 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2816 usbd_xfer_abort(xfer); 2817 } 2818 2819 /* Close a device control pipe. */ 2820 void 2821 uhci_device_ctrl_close(struct usbd_pipe *pipe) 2822 { 2823 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2824 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2825 2826 uhci_free_sqh(sc, upipe->ctrl.sqh); 2827 uhci_free_std_locked(sc, upipe->ctrl.setup); 2828 uhci_free_std_locked(sc, upipe->ctrl.stat); 2829 2830 usb_freemem(&sc->sc_bus, &upipe->ctrl.reqdma); 2831 } 2832 2833 /* Abort a device interrupt request. */ 2834 void 2835 uhci_device_intr_abort(struct usbd_xfer *xfer) 2836 { 2837 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 2838 2839 KASSERT(mutex_owned(&sc->sc_lock)); 2840 KASSERT(xfer->ux_pipe->up_intrxfer == xfer); 2841 2842 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2843 DPRINTF("xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 2844 2845 usbd_xfer_abort(xfer); 2846 } 2847 2848 /* Close a device interrupt pipe. */ 2849 void 2850 uhci_device_intr_close(struct usbd_pipe *pipe) 2851 { 2852 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 2853 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 2854 int i, npoll; 2855 2856 KASSERT(mutex_owned(&sc->sc_lock)); 2857 2858 /* Unlink descriptors from controller data structures. */ 2859 npoll = upipe->intr.npoll; 2860 for (i = 0; i < npoll; i++) 2861 uhci_remove_intr(sc, upipe->intr.qhs[i]); 2862 2863 /* 2864 * We now have to wait for any activity on the physical 2865 * descriptors to stop. 2866 */ 2867 usb_delay_ms_locked(&sc->sc_bus, 2, &sc->sc_lock); 2868 2869 for (i = 0; i < npoll; i++) 2870 uhci_free_sqh(sc, upipe->intr.qhs[i]); 2871 kmem_free(upipe->intr.qhs, npoll * sizeof(uhci_soft_qh_t *)); 2872 } 2873 2874 int 2875 uhci_device_isoc_init(struct usbd_xfer *xfer) 2876 { 2877 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2878 2879 KASSERT(!(xfer->ux_rqflags & URQ_REQUEST)); 2880 KASSERT(xfer->ux_nframes != 0); 2881 KASSERT(ux->ux_isdone); 2882 2883 ux->ux_type = UX_ISOC; 2884 return 0; 2885 } 2886 2887 Static void 2888 uhci_device_isoc_fini(struct usbd_xfer *xfer) 2889 { 2890 struct uhci_xfer *ux __diagused = UHCI_XFER2UXFER(xfer); 2891 2892 KASSERT(ux->ux_type == UX_ISOC); 2893 } 2894 2895 usbd_status 2896 uhci_device_isoc_transfer(struct usbd_xfer *xfer) 2897 { 2898 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 2899 usbd_status err __diagused; 2900 2901 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 2902 DPRINTFN(5, "xfer=%#jx", (uintptr_t)xfer, 0, 0, 0); 2903 2904 /* Put it on our queue, */ 2905 mutex_enter(&sc->sc_lock); 2906 err = usb_insert_transfer(xfer); 2907 mutex_exit(&sc->sc_lock); 2908 2909 KASSERT(err == USBD_NORMAL_COMPLETION); 2910 2911 /* insert into schedule, */ 2912 2913 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 2914 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 2915 struct isoc *isoc = &upipe->isoc; 2916 uhci_soft_td_t *std = NULL; 2917 uint32_t buf, len, status, offs; 2918 int i, next, nframes; 2919 int rd = UE_GET_DIR(upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN; 2920 2921 DPRINTFN(5, "used=%jd next=%jd xfer=%#jx nframes=%jd", 2922 isoc->inuse, isoc->next, (uintptr_t)xfer, xfer->ux_nframes); 2923 2924 if (sc->sc_dying) 2925 return USBD_IOERROR; 2926 2927 if (xfer->ux_status == USBD_IN_PROGRESS) { 2928 /* This request has already been entered into the frame list */ 2929 printf("%s: xfer=%p in frame list\n", __func__, xfer); 2930 /* XXX */ 2931 } 2932 2933 #ifdef DIAGNOSTIC 2934 if (isoc->inuse >= UHCI_VFRAMELIST_COUNT) 2935 printf("%s: overflow!\n", __func__); 2936 #endif 2937 2938 KASSERT(xfer->ux_nframes != 0); 2939 2940 if (xfer->ux_length) 2941 usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length, 2942 rd ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2943 2944 mutex_enter(&sc->sc_lock); 2945 next = isoc->next; 2946 if (next == -1) { 2947 /* Not in use yet, schedule it a few frames ahead. */ 2948 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2949 DPRINTFN(2, "start next=%jd", next, 0, 0, 0); 2950 } 2951 2952 xfer->ux_status = USBD_IN_PROGRESS; 2953 ux->ux_curframe = next; 2954 2955 offs = 0; 2956 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2957 UHCI_TD_ACTIVE | 2958 UHCI_TD_IOS); 2959 nframes = xfer->ux_nframes; 2960 for (i = 0; i < nframes; i++) { 2961 buf = DMAADDR(&xfer->ux_dmabuf, offs); 2962 std = isoc->stds[next]; 2963 if (++next >= UHCI_VFRAMELIST_COUNT) 2964 next = 0; 2965 len = xfer->ux_frlengths[i]; 2966 2967 KASSERTMSG(len <= __SHIFTOUT_MASK(UHCI_TD_MAXLEN_MASK), 2968 "len %d", len); 2969 std->td.td_buffer = htole32(buf); 2970 usb_syncmem(&xfer->ux_dmabuf, offs, len, 2971 rd ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2972 if (i == nframes - 1) 2973 status |= UHCI_TD_IOC; 2974 std->td.td_status = htole32(status); 2975 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2976 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2977 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 2978 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 2979 #ifdef UHCI_DEBUG 2980 if (uhcidebug >= 5) { 2981 DPRINTF("--- dump start ---", 0, 0, 0, 0); 2982 DPRINTF("TD %jd", i, 0, 0, 0); 2983 uhci_dump_td(std); 2984 DPRINTF("--- dump end ---", 0, 0, 0, 0); 2985 } 2986 #endif 2987 offs += len; 2988 const bus_addr_t bend __diagused = 2989 DMAADDR(&xfer->ux_dmabuf, offs - 1); 2990 2991 KASSERT(((buf ^ bend) & ~PAGE_MASK) == 0); 2992 } 2993 isoc->next = next; 2994 isoc->inuse += xfer->ux_nframes; 2995 2996 /* Set up interrupt info. */ 2997 ux->ux_stdstart = std; 2998 ux->ux_stdend = std; 2999 3000 KASSERT(ux->ux_isdone); 3001 #ifdef DIAGNOSTIC 3002 ux->ux_isdone = false; 3003 #endif 3004 uhci_add_intr_list(sc, ux); 3005 3006 mutex_exit(&sc->sc_lock); 3007 3008 return USBD_IN_PROGRESS; 3009 } 3010 3011 void 3012 uhci_device_isoc_abort(struct usbd_xfer *xfer) 3013 { 3014 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3015 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3016 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 3017 uhci_soft_td_t **stds = upipe->isoc.stds; 3018 uhci_soft_td_t *std; 3019 int i, n, nframes, maxlen, len; 3020 3021 KASSERT(mutex_owned(&sc->sc_lock)); 3022 3023 /* Transfer is already done. */ 3024 if (xfer->ux_status != USBD_NOT_STARTED && 3025 xfer->ux_status != USBD_IN_PROGRESS) { 3026 return; 3027 } 3028 3029 /* Give xfer the requested abort code. */ 3030 xfer->ux_status = USBD_CANCELLED; 3031 3032 /* make hardware ignore it, */ 3033 nframes = xfer->ux_nframes; 3034 n = ux->ux_curframe; 3035 maxlen = 0; 3036 for (i = 0; i < nframes; i++) { 3037 std = stds[n]; 3038 usb_syncmem(&std->dma, 3039 std->offs + offsetof(uhci_td_t, td_status), 3040 sizeof(std->td.td_status), 3041 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3042 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 3043 usb_syncmem(&std->dma, 3044 std->offs + offsetof(uhci_td_t, td_status), 3045 sizeof(std->td.td_status), 3046 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3047 usb_syncmem(&std->dma, 3048 std->offs + offsetof(uhci_td_t, td_token), 3049 sizeof(std->td.td_token), 3050 BUS_DMASYNC_POSTWRITE); 3051 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 3052 if (len > maxlen) 3053 maxlen = len; 3054 if (++n >= UHCI_VFRAMELIST_COUNT) 3055 n = 0; 3056 } 3057 3058 /* and wait until we are sure the hardware has finished. */ 3059 delay(maxlen); 3060 3061 #ifdef DIAGNOSTIC 3062 ux->ux_isdone = true; 3063 #endif 3064 /* Remove from interrupt list. */ 3065 uhci_del_intr_list(sc, ux); 3066 3067 /* Run callback. */ 3068 usb_transfer_complete(xfer); 3069 3070 KASSERT(mutex_owned(&sc->sc_lock)); 3071 } 3072 3073 void 3074 uhci_device_isoc_close(struct usbd_pipe *pipe) 3075 { 3076 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3077 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3078 uhci_soft_td_t *std, *vstd; 3079 struct isoc *isoc; 3080 int i; 3081 3082 KASSERT(mutex_owned(&sc->sc_lock)); 3083 3084 /* 3085 * Make sure all TDs are marked as inactive. 3086 * Wait for completion. 3087 * Unschedule. 3088 * Deallocate. 3089 */ 3090 isoc = &upipe->isoc; 3091 3092 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3093 std = isoc->stds[i]; 3094 usb_syncmem(&std->dma, 3095 std->offs + offsetof(uhci_td_t, td_status), 3096 sizeof(std->td.td_status), 3097 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3098 std->td.td_status &= htole32(~UHCI_TD_ACTIVE); 3099 usb_syncmem(&std->dma, 3100 std->offs + offsetof(uhci_td_t, td_status), 3101 sizeof(std->td.td_status), 3102 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3103 } 3104 /* wait for completion */ 3105 usb_delay_ms_locked(&sc->sc_bus, 2, &sc->sc_lock); 3106 3107 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3108 std = isoc->stds[i]; 3109 for (vstd = sc->sc_vframes[i].htd; 3110 vstd != NULL && vstd->link.std != std; 3111 vstd = vstd->link.std) 3112 ; 3113 if (vstd == NULL) { 3114 /*panic*/ 3115 printf("%s: %p not found\n", __func__, std); 3116 mutex_exit(&sc->sc_lock); 3117 return; 3118 } 3119 vstd->link = std->link; 3120 usb_syncmem(&std->dma, 3121 std->offs + offsetof(uhci_td_t, td_link), 3122 sizeof(std->td.td_link), 3123 BUS_DMASYNC_POSTWRITE); 3124 vstd->td.td_link = std->td.td_link; 3125 usb_syncmem(&vstd->dma, 3126 vstd->offs + offsetof(uhci_td_t, td_link), 3127 sizeof(vstd->td.td_link), 3128 BUS_DMASYNC_PREWRITE); 3129 uhci_free_std_locked(sc, std); 3130 } 3131 3132 kmem_free(isoc->stds, UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *)); 3133 } 3134 3135 usbd_status 3136 uhci_setup_isoc(struct usbd_pipe *pipe) 3137 { 3138 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3139 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3140 int addr = upipe->pipe.up_dev->ud_addr; 3141 int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 3142 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 3143 uhci_soft_td_t *std, *vstd; 3144 uint32_t token; 3145 struct isoc *isoc; 3146 int i; 3147 3148 isoc = &upipe->isoc; 3149 3150 isoc->stds = kmem_alloc( 3151 UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *), KM_SLEEP); 3152 if (isoc->stds == NULL) 3153 return USBD_NOMEM; 3154 3155 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 3156 UHCI_TD_OUT(0, endpt, addr, 0); 3157 3158 /* Allocate the TDs and mark as inactive; */ 3159 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3160 std = uhci_alloc_std(sc); 3161 if (std == 0) 3162 goto bad; 3163 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 3164 std->td.td_token = htole32(token); 3165 usb_syncmem(&std->dma, std->offs, sizeof(std->td), 3166 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3167 isoc->stds[i] = std; 3168 } 3169 3170 mutex_enter(&sc->sc_lock); 3171 3172 /* Insert TDs into schedule. */ 3173 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3174 std = isoc->stds[i]; 3175 vstd = sc->sc_vframes[i].htd; 3176 usb_syncmem(&vstd->dma, 3177 vstd->offs + offsetof(uhci_td_t, td_link), 3178 sizeof(vstd->td.td_link), 3179 BUS_DMASYNC_POSTWRITE); 3180 std->link = vstd->link; 3181 std->td.td_link = vstd->td.td_link; 3182 usb_syncmem(&std->dma, 3183 std->offs + offsetof(uhci_td_t, td_link), 3184 sizeof(std->td.td_link), 3185 BUS_DMASYNC_PREWRITE); 3186 vstd->link.std = std; 3187 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 3188 usb_syncmem(&vstd->dma, 3189 vstd->offs + offsetof(uhci_td_t, td_link), 3190 sizeof(vstd->td.td_link), 3191 BUS_DMASYNC_PREWRITE); 3192 } 3193 mutex_exit(&sc->sc_lock); 3194 3195 isoc->next = -1; 3196 isoc->inuse = 0; 3197 3198 return USBD_NORMAL_COMPLETION; 3199 3200 bad: 3201 while (--i >= 0) 3202 uhci_free_std(sc, isoc->stds[i]); 3203 kmem_free(isoc->stds, UHCI_VFRAMELIST_COUNT * sizeof(uhci_soft_td_t *)); 3204 return USBD_NOMEM; 3205 } 3206 3207 void 3208 uhci_device_isoc_done(struct usbd_xfer *xfer) 3209 { 3210 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3211 struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer); 3212 int i, offs; 3213 int rd = UE_GET_DIR(upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN; 3214 3215 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3216 DPRINTFN(4, "length=%jd, ux_state=0x%08jx", 3217 xfer->ux_actlen, xfer->ux_state, 0, 0); 3218 3219 #ifdef DIAGNOSTIC 3220 if (ux->ux_stdend == NULL) { 3221 printf("%s: xfer=%p stdend==NULL\n", __func__, xfer); 3222 #ifdef UHCI_DEBUG 3223 DPRINTF("--- dump start ---", 0, 0, 0, 0); 3224 uhci_dump_ii(ux); 3225 DPRINTF("--- dump end ---", 0, 0, 0, 0); 3226 #endif 3227 return; 3228 } 3229 #endif 3230 3231 /* Turn off the interrupt since it is active even if the TD is not. */ 3232 usb_syncmem(&ux->ux_stdend->dma, 3233 ux->ux_stdend->offs + offsetof(uhci_td_t, td_status), 3234 sizeof(ux->ux_stdend->td.td_status), 3235 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3236 ux->ux_stdend->td.td_status &= htole32(~UHCI_TD_IOC); 3237 usb_syncmem(&ux->ux_stdend->dma, 3238 ux->ux_stdend->offs + offsetof(uhci_td_t, td_status), 3239 sizeof(ux->ux_stdend->td.td_status), 3240 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3241 3242 offs = 0; 3243 for (i = 0; i < xfer->ux_nframes; i++) { 3244 usb_syncmem(&xfer->ux_dmabuf, offs, xfer->ux_frlengths[i], 3245 rd ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3246 offs += xfer->ux_frlengths[i]; 3247 } 3248 } 3249 3250 void 3251 uhci_device_intr_done(struct usbd_xfer *xfer) 3252 { 3253 uhci_softc_t *sc __diagused = UHCI_XFER2SC(xfer); 3254 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3255 uhci_soft_qh_t *sqh; 3256 int i, npoll; 3257 3258 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3259 DPRINTFN(5, "length=%jd", xfer->ux_actlen, 0, 0, 0); 3260 3261 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 3262 3263 npoll = upipe->intr.npoll; 3264 for (i = 0; i < npoll; i++) { 3265 sqh = upipe->intr.qhs[i]; 3266 sqh->elink = NULL; 3267 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3268 usb_syncmem(&sqh->dma, 3269 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3270 sizeof(sqh->qh.qh_elink), 3271 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3272 } 3273 const int endpt = upipe->pipe.up_endpoint->ue_edesc->bEndpointAddress; 3274 const bool isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3275 usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length, 3276 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3277 } 3278 3279 /* Deallocate request data structures */ 3280 void 3281 uhci_device_ctrl_done(struct usbd_xfer *xfer) 3282 { 3283 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3284 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3285 int len = UGETW(xfer->ux_request.wLength); 3286 int isread = (xfer->ux_request.bmRequestType & UT_READ); 3287 3288 KASSERT(sc->sc_bus.ub_usepolling || mutex_owned(&sc->sc_lock)); 3289 3290 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3291 3292 KASSERT(xfer->ux_rqflags & URQ_REQUEST); 3293 3294 /* XXXNH move to uhci_idone??? */ 3295 if (upipe->pipe.up_dev->ud_speed == USB_SPEED_LOW) 3296 uhci_remove_ls_ctrl(sc, upipe->ctrl.sqh); 3297 else 3298 uhci_remove_hs_ctrl(sc, upipe->ctrl.sqh); 3299 3300 if (len) { 3301 usb_syncmem(&xfer->ux_dmabuf, 0, len, 3302 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3303 } 3304 usb_syncmem(&upipe->ctrl.reqdma, 0, 3305 sizeof(usb_device_request_t), BUS_DMASYNC_POSTWRITE); 3306 3307 DPRINTF("length=%jd", xfer->ux_actlen, 0, 0, 0); 3308 } 3309 3310 /* Deallocate request data structures */ 3311 void 3312 uhci_device_bulk_done(struct usbd_xfer *xfer) 3313 { 3314 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3315 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe); 3316 usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc; 3317 int endpt = ed->bEndpointAddress; 3318 int isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3319 3320 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3321 DPRINTFN(5, "xfer=%#jx sc=%#jx upipe=%#jx", (uintptr_t)xfer, 3322 (uintptr_t)sc, (uintptr_t)upipe, 0); 3323 3324 KASSERT(mutex_owned(&sc->sc_lock)); 3325 3326 uhci_remove_bulk(sc, upipe->bulk.sqh); 3327 3328 if (xfer->ux_length) { 3329 usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length, 3330 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 3331 } 3332 3333 DPRINTFN(5, "length=%jd", xfer->ux_actlen, 0, 0, 0); 3334 } 3335 3336 /* Add interrupt QH, called with vflock. */ 3337 void 3338 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3339 { 3340 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3341 uhci_soft_qh_t *eqh; 3342 3343 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3344 DPRINTFN(4, "n=%jd sqh=%#jx", sqh->pos, (uintptr_t)sqh, 0, 0); 3345 3346 eqh = vf->eqh; 3347 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 3348 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_POSTWRITE); 3349 sqh->hlink = eqh->hlink; 3350 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 3351 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 3352 sizeof(sqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 3353 eqh->hlink = sqh; 3354 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 3355 usb_syncmem(&eqh->dma, eqh->offs + offsetof(uhci_qh_t, qh_hlink), 3356 sizeof(eqh->qh.qh_hlink), BUS_DMASYNC_PREWRITE); 3357 vf->eqh = sqh; 3358 vf->bandwidth++; 3359 } 3360 3361 /* Remove interrupt QH. */ 3362 void 3363 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3364 { 3365 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3366 uhci_soft_qh_t *pqh; 3367 3368 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3369 DPRINTFN(4, "n=%jd sqh=%#jx", sqh->pos, (uintptr_t)sqh, 0, 0); 3370 3371 /* See comment in uhci_remove_ctrl() */ 3372 3373 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_elink), 3374 sizeof(sqh->qh.qh_elink), 3375 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3376 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 3377 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3378 usb_syncmem(&sqh->dma, 3379 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3380 sizeof(sqh->qh.qh_elink), 3381 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3382 delay(UHCI_QH_REMOVE_DELAY); 3383 } 3384 3385 pqh = uhci_find_prev_qh(vf->hqh, sqh); 3386 usb_syncmem(&sqh->dma, sqh->offs + offsetof(uhci_qh_t, qh_hlink), 3387 sizeof(sqh->qh.qh_hlink), 3388 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 3389 pqh->hlink = sqh->hlink; 3390 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 3391 usb_syncmem(&pqh->dma, pqh->offs + offsetof(uhci_qh_t, qh_hlink), 3392 sizeof(pqh->qh.qh_hlink), 3393 BUS_DMASYNC_PREWRITE); 3394 delay(UHCI_QH_REMOVE_DELAY); 3395 if (vf->eqh == sqh) 3396 vf->eqh = pqh; 3397 vf->bandwidth--; 3398 } 3399 3400 usbd_status 3401 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 3402 { 3403 uhci_soft_qh_t *sqh; 3404 int i, npoll; 3405 u_int bestbw, bw, bestoffs, offs; 3406 3407 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3408 DPRINTFN(2, "pipe=%#jx", (uintptr_t)upipe, 0, 0, 0); 3409 if (ival == 0) { 3410 printf("%s: 0 interval\n", __func__); 3411 return USBD_INVAL; 3412 } 3413 3414 if (ival > UHCI_VFRAMELIST_COUNT) 3415 ival = UHCI_VFRAMELIST_COUNT; 3416 npoll = howmany(UHCI_VFRAMELIST_COUNT, ival); 3417 DPRINTF("ival=%jd npoll=%jd", ival, npoll, 0, 0); 3418 3419 upipe->intr.npoll = npoll; 3420 upipe->intr.qhs = 3421 kmem_alloc(npoll * sizeof(uhci_soft_qh_t *), KM_SLEEP); 3422 3423 /* 3424 * Figure out which offset in the schedule that has most 3425 * bandwidth left over. 3426 */ 3427 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 3428 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 3429 for (bw = i = 0; i < npoll; i++) 3430 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 3431 if (bw < bestbw) { 3432 bestbw = bw; 3433 bestoffs = offs; 3434 } 3435 } 3436 DPRINTF("bw=%jd offs=%jd", bestbw, bestoffs, 0, 0); 3437 for (i = 0; i < npoll; i++) { 3438 upipe->intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 3439 sqh->elink = NULL; 3440 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3441 usb_syncmem(&sqh->dma, 3442 sqh->offs + offsetof(uhci_qh_t, qh_elink), 3443 sizeof(sqh->qh.qh_elink), 3444 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 3445 sqh->pos = MOD(i * ival + bestoffs); 3446 } 3447 #undef MOD 3448 3449 mutex_enter(&sc->sc_lock); 3450 /* Enter QHs into the controller data structures. */ 3451 for (i = 0; i < npoll; i++) 3452 uhci_add_intr(sc, upipe->intr.qhs[i]); 3453 mutex_exit(&sc->sc_lock); 3454 3455 DPRINTFN(5, "returns %#jx", (uintptr_t)upipe, 0, 0, 0); 3456 3457 return USBD_NORMAL_COMPLETION; 3458 } 3459 3460 /* Open a new pipe. */ 3461 usbd_status 3462 uhci_open(struct usbd_pipe *pipe) 3463 { 3464 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3465 struct usbd_bus *bus = pipe->up_dev->ud_bus; 3466 struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(pipe); 3467 usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc; 3468 usbd_status err = USBD_NOMEM; 3469 int ival; 3470 3471 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3472 DPRINTF("pipe=%#jx, addr=%jd, endpt=%jd (%jd)", 3473 (uintptr_t)pipe, pipe->up_dev->ud_addr, ed->bEndpointAddress, 3474 bus->ub_rhaddr); 3475 3476 if (sc->sc_dying) 3477 return USBD_IOERROR; 3478 3479 upipe->aborting = 0; 3480 /* toggle state needed for bulk endpoints */ 3481 upipe->nexttoggle = pipe->up_endpoint->ue_toggle; 3482 3483 if (pipe->up_dev->ud_addr == bus->ub_rhaddr) { 3484 switch (ed->bEndpointAddress) { 3485 case USB_CONTROL_ENDPOINT: 3486 pipe->up_methods = &roothub_ctrl_methods; 3487 break; 3488 case UE_DIR_IN | USBROOTHUB_INTR_ENDPT: 3489 pipe->up_methods = &uhci_root_intr_methods; 3490 break; 3491 default: 3492 return USBD_INVAL; 3493 } 3494 } else { 3495 switch (ed->bmAttributes & UE_XFERTYPE) { 3496 case UE_CONTROL: 3497 pipe->up_methods = &uhci_device_ctrl_methods; 3498 upipe->ctrl.sqh = uhci_alloc_sqh(sc); 3499 if (upipe->ctrl.sqh == NULL) 3500 goto bad; 3501 upipe->ctrl.setup = uhci_alloc_std(sc); 3502 if (upipe->ctrl.setup == NULL) { 3503 uhci_free_sqh(sc, upipe->ctrl.sqh); 3504 goto bad; 3505 } 3506 upipe->ctrl.stat = uhci_alloc_std(sc); 3507 if (upipe->ctrl.stat == NULL) { 3508 uhci_free_sqh(sc, upipe->ctrl.sqh); 3509 uhci_free_std(sc, upipe->ctrl.setup); 3510 goto bad; 3511 } 3512 err = usb_allocmem(&sc->sc_bus, 3513 sizeof(usb_device_request_t), 0, 3514 USBMALLOC_COHERENT, &upipe->ctrl.reqdma); 3515 if (err) { 3516 uhci_free_sqh(sc, upipe->ctrl.sqh); 3517 uhci_free_std(sc, upipe->ctrl.setup); 3518 uhci_free_std(sc, upipe->ctrl.stat); 3519 goto bad; 3520 } 3521 break; 3522 case UE_INTERRUPT: 3523 pipe->up_methods = &uhci_device_intr_methods; 3524 ival = pipe->up_interval; 3525 if (ival == USBD_DEFAULT_INTERVAL) 3526 ival = ed->bInterval; 3527 return uhci_device_setintr(sc, upipe, ival); 3528 case UE_ISOCHRONOUS: 3529 pipe->up_serialise = false; 3530 pipe->up_methods = &uhci_device_isoc_methods; 3531 return uhci_setup_isoc(pipe); 3532 case UE_BULK: 3533 pipe->up_methods = &uhci_device_bulk_methods; 3534 upipe->bulk.sqh = uhci_alloc_sqh(sc); 3535 if (upipe->bulk.sqh == NULL) 3536 goto bad; 3537 break; 3538 } 3539 } 3540 return USBD_NORMAL_COMPLETION; 3541 3542 bad: 3543 return USBD_NOMEM; 3544 } 3545 3546 /* 3547 * Data structures and routines to emulate the root hub. 3548 */ 3549 /* 3550 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3551 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3552 * should not be used by the USB subsystem. As we cannot issue a 3553 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3554 * will be enabled as part of the reset. 3555 * 3556 * On the VT83C572, the port cannot be successfully enabled until the 3557 * outstanding "port enable change" and "connection status change" 3558 * events have been reset. 3559 */ 3560 Static usbd_status 3561 uhci_portreset(uhci_softc_t *sc, int index) 3562 { 3563 int lim, port, x; 3564 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3565 3566 if (index == 1) 3567 port = UHCI_PORTSC1; 3568 else if (index == 2) 3569 port = UHCI_PORTSC2; 3570 else 3571 return USBD_IOERROR; 3572 3573 x = URWMASK(UREAD2(sc, port)); 3574 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3575 3576 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3577 3578 DPRINTF("uhci port %jd reset, status0 = 0x%04jx", index, 3579 UREAD2(sc, port), 0, 0); 3580 3581 x = URWMASK(UREAD2(sc, port)); 3582 UWRITE2(sc, port, x & ~(UHCI_PORTSC_PR | UHCI_PORTSC_SUSP)); 3583 3584 delay(100); 3585 3586 DPRINTF("uhci port %jd reset, status1 = 0x%04jx", index, 3587 UREAD2(sc, port), 0, 0); 3588 3589 x = URWMASK(UREAD2(sc, port)); 3590 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3591 3592 for (lim = 10; --lim > 0;) { 3593 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3594 3595 x = UREAD2(sc, port); 3596 DPRINTF("uhci port %jd iteration %ju, status = 0x%04jx", index, 3597 lim, x, 0); 3598 3599 if (!(x & UHCI_PORTSC_CCS)) { 3600 /* 3601 * No device is connected (or was disconnected 3602 * during reset). Consider the port reset. 3603 * The delay must be long enough to ensure on 3604 * the initial iteration that the device 3605 * connection will have been registered. 50ms 3606 * appears to be sufficient, but 20ms is not. 3607 */ 3608 DPRINTFN(3, "uhci port %jd loop %ju, device detached", 3609 index, lim, 0, 0); 3610 break; 3611 } 3612 3613 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3614 /* 3615 * Port enabled changed and/or connection 3616 * status changed were set. Reset either or 3617 * both raised flags (by writing a 1 to that 3618 * bit), and wait again for state to settle. 3619 */ 3620 UWRITE2(sc, port, URWMASK(x) | 3621 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3622 continue; 3623 } 3624 3625 if (x & UHCI_PORTSC_PE) 3626 /* Port is enabled */ 3627 break; 3628 3629 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3630 } 3631 3632 DPRINTFN(3, "uhci port %jd reset, status2 = 0x%04jx", index, 3633 UREAD2(sc, port), 0, 0); 3634 3635 if (lim <= 0) { 3636 DPRINTF("uhci port %jd reset timed out", index, 3637 0, 0, 0); 3638 return USBD_TIMEOUT; 3639 } 3640 3641 sc->sc_isreset = 1; 3642 return USBD_NORMAL_COMPLETION; 3643 } 3644 3645 Static int 3646 uhci_roothub_ctrl(struct usbd_bus *bus, usb_device_request_t *req, 3647 void *buf, int buflen) 3648 { 3649 uhci_softc_t *sc = UHCI_BUS2SC(bus); 3650 int port, x; 3651 int status, change, totlen = 0; 3652 uint16_t len, value, index; 3653 usb_port_status_t ps; 3654 usbd_status err; 3655 3656 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3657 3658 if (sc->sc_dying) 3659 return -1; 3660 3661 DPRINTF("type=0x%02jx request=%02jx", req->bmRequestType, 3662 req->bRequest, 0, 0); 3663 3664 len = UGETW(req->wLength); 3665 value = UGETW(req->wValue); 3666 index = UGETW(req->wIndex); 3667 3668 #define C(x,y) ((x) | ((y) << 8)) 3669 switch (C(req->bRequest, req->bmRequestType)) { 3670 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3671 DPRINTF("wValue=0x%04jx", value, 0, 0, 0); 3672 if (len == 0) 3673 break; 3674 switch (value) { 3675 #define sd ((usb_string_descriptor_t *)buf) 3676 case C(2, UDESC_STRING): 3677 /* Product */ 3678 totlen = usb_makestrdesc(sd, len, "UHCI root hub"); 3679 break; 3680 #undef sd 3681 default: 3682 /* default from usbroothub */ 3683 return buflen; 3684 } 3685 break; 3686 3687 /* Hub requests */ 3688 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3689 break; 3690 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3691 DPRINTF("UR_CLEAR_PORT_FEATURE port=%jd feature=%jd", index, 3692 value, 0, 0); 3693 if (index == 1) 3694 port = UHCI_PORTSC1; 3695 else if (index == 2) 3696 port = UHCI_PORTSC2; 3697 else { 3698 return -1; 3699 } 3700 switch(value) { 3701 case UHF_PORT_ENABLE: 3702 x = URWMASK(UREAD2(sc, port)); 3703 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3704 break; 3705 case UHF_PORT_SUSPEND: 3706 x = URWMASK(UREAD2(sc, port)); 3707 if (!(x & UHCI_PORTSC_SUSP)) /* not suspended */ 3708 break; 3709 UWRITE2(sc, port, x | UHCI_PORTSC_RD); 3710 /* see USB2 spec ch. 7.1.7.7 */ 3711 usb_delay_ms(&sc->sc_bus, 20); 3712 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3713 /* 10ms resume delay must be provided by caller */ 3714 break; 3715 case UHF_PORT_RESET: 3716 x = URWMASK(UREAD2(sc, port)); 3717 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3718 break; 3719 case UHF_C_PORT_CONNECTION: 3720 x = URWMASK(UREAD2(sc, port)); 3721 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3722 break; 3723 case UHF_C_PORT_ENABLE: 3724 x = URWMASK(UREAD2(sc, port)); 3725 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3726 break; 3727 case UHF_C_PORT_OVER_CURRENT: 3728 x = URWMASK(UREAD2(sc, port)); 3729 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3730 break; 3731 case UHF_C_PORT_RESET: 3732 sc->sc_isreset = 0; 3733 break; 3734 case UHF_PORT_CONNECTION: 3735 case UHF_PORT_OVER_CURRENT: 3736 case UHF_PORT_POWER: 3737 case UHF_PORT_LOW_SPEED: 3738 case UHF_C_PORT_SUSPEND: 3739 default: 3740 return -1; 3741 } 3742 break; 3743 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3744 if (index == 1) 3745 port = UHCI_PORTSC1; 3746 else if (index == 2) 3747 port = UHCI_PORTSC2; 3748 else { 3749 return -1; 3750 } 3751 if (len > 0) { 3752 *(uint8_t *)buf = 3753 UHCI_PORTSC_GET_LS(UREAD2(sc, port)); 3754 totlen = 1; 3755 } 3756 break; 3757 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3758 if (len == 0) 3759 break; 3760 if ((value & 0xff) != 0) { 3761 return -1; 3762 } 3763 usb_hub_descriptor_t hubd; 3764 3765 totlen = uimin(buflen, sizeof(hubd)); 3766 memcpy(&hubd, buf, totlen); 3767 hubd.bNbrPorts = 2; 3768 memcpy(buf, &hubd, totlen); 3769 break; 3770 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3771 if (len != 4) { 3772 return -1; 3773 } 3774 memset(buf, 0, len); 3775 totlen = len; 3776 break; 3777 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3778 if (index == 1) 3779 port = UHCI_PORTSC1; 3780 else if (index == 2) 3781 port = UHCI_PORTSC2; 3782 else { 3783 return -1; 3784 } 3785 if (len != 4) { 3786 return -1; 3787 } 3788 x = UREAD2(sc, port); 3789 status = change = 0; 3790 if (x & UHCI_PORTSC_CCS) 3791 status |= UPS_CURRENT_CONNECT_STATUS; 3792 if (x & UHCI_PORTSC_CSC) 3793 change |= UPS_C_CONNECT_STATUS; 3794 if (x & UHCI_PORTSC_PE) 3795 status |= UPS_PORT_ENABLED; 3796 if (x & UHCI_PORTSC_POEDC) 3797 change |= UPS_C_PORT_ENABLED; 3798 if (x & UHCI_PORTSC_OCI) 3799 status |= UPS_OVERCURRENT_INDICATOR; 3800 if (x & UHCI_PORTSC_OCIC) 3801 change |= UPS_C_OVERCURRENT_INDICATOR; 3802 if (x & UHCI_PORTSC_SUSP) 3803 status |= UPS_SUSPEND; 3804 if (x & UHCI_PORTSC_LSDA) 3805 status |= UPS_LOW_SPEED; 3806 status |= UPS_PORT_POWER; 3807 if (sc->sc_isreset) 3808 change |= UPS_C_PORT_RESET; 3809 USETW(ps.wPortStatus, status); 3810 USETW(ps.wPortChange, change); 3811 totlen = uimin(len, sizeof(ps)); 3812 memcpy(buf, &ps, totlen); 3813 break; 3814 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3815 return -1; 3816 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3817 break; 3818 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3819 if (index == 1) 3820 port = UHCI_PORTSC1; 3821 else if (index == 2) 3822 port = UHCI_PORTSC2; 3823 else { 3824 return -1; 3825 } 3826 switch(value) { 3827 case UHF_PORT_ENABLE: 3828 x = URWMASK(UREAD2(sc, port)); 3829 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3830 break; 3831 case UHF_PORT_SUSPEND: 3832 x = URWMASK(UREAD2(sc, port)); 3833 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3834 break; 3835 case UHF_PORT_RESET: 3836 err = uhci_portreset(sc, index); 3837 if (err != USBD_NORMAL_COMPLETION) 3838 return -1; 3839 return 0; 3840 case UHF_PORT_POWER: 3841 /* Pretend we turned on power */ 3842 return 0; 3843 case UHF_C_PORT_CONNECTION: 3844 case UHF_C_PORT_ENABLE: 3845 case UHF_C_PORT_OVER_CURRENT: 3846 case UHF_PORT_CONNECTION: 3847 case UHF_PORT_OVER_CURRENT: 3848 case UHF_PORT_LOW_SPEED: 3849 case UHF_C_PORT_SUSPEND: 3850 case UHF_C_PORT_RESET: 3851 default: 3852 return -1; 3853 } 3854 break; 3855 default: 3856 /* default from usbroothub */ 3857 DPRINTF("returning %jd (usbroothub default)", 3858 buflen, 0, 0, 0); 3859 return buflen; 3860 } 3861 3862 DPRINTF("returning %jd", totlen, 0, 0, 0); 3863 3864 return totlen; 3865 } 3866 3867 /* Abort a root interrupt request. */ 3868 void 3869 uhci_root_intr_abort(struct usbd_xfer *xfer) 3870 { 3871 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3872 3873 KASSERT(mutex_owned(&sc->sc_lock)); 3874 KASSERT(xfer->ux_pipe->up_intrxfer == xfer); 3875 3876 /* 3877 * Try to stop the callout before it starts. If we got in too 3878 * late, too bad; but if the callout had yet to run and time 3879 * out the xfer, cancel it ourselves. 3880 */ 3881 callout_stop(&sc->sc_poll_handle); 3882 if (sc->sc_intr_xfer == NULL) 3883 return; 3884 3885 KASSERT(sc->sc_intr_xfer == xfer); 3886 KASSERT(xfer->ux_status == USBD_IN_PROGRESS); 3887 xfer->ux_status = USBD_CANCELLED; 3888 #ifdef DIAGNOSTIC 3889 UHCI_XFER2UXFER(xfer)->ux_isdone = true; 3890 #endif 3891 usb_transfer_complete(xfer); 3892 } 3893 3894 usbd_status 3895 uhci_root_intr_transfer(struct usbd_xfer *xfer) 3896 { 3897 uhci_softc_t *sc = UHCI_XFER2SC(xfer); 3898 usbd_status err; 3899 3900 /* Insert last in queue. */ 3901 mutex_enter(&sc->sc_lock); 3902 err = usb_insert_transfer(xfer); 3903 mutex_exit(&sc->sc_lock); 3904 if (err) 3905 return err; 3906 3907 /* 3908 * Pipe isn't running (otherwise err would be USBD_INPROG), 3909 * start first 3910 */ 3911 return uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue)); 3912 } 3913 3914 /* Start a transfer on the root interrupt pipe */ 3915 usbd_status 3916 uhci_root_intr_start(struct usbd_xfer *xfer) 3917 { 3918 struct usbd_pipe *pipe = xfer->ux_pipe; 3919 uhci_softc_t *sc = UHCI_PIPE2SC(pipe); 3920 unsigned int ival; 3921 const bool polling = sc->sc_bus.ub_usepolling; 3922 3923 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3924 DPRINTF("xfer=%#jx len=%jd flags=%jd", (uintptr_t)xfer, xfer->ux_length, 3925 xfer->ux_flags, 0); 3926 3927 if (sc->sc_dying) 3928 return USBD_IOERROR; 3929 3930 if (!polling) 3931 mutex_enter(&sc->sc_lock); 3932 3933 KASSERT(sc->sc_intr_xfer == NULL); 3934 3935 /* XXX temporary variable needed to avoid gcc3 warning */ 3936 ival = xfer->ux_pipe->up_endpoint->ue_edesc->bInterval; 3937 sc->sc_ival = mstohz(ival); 3938 callout_schedule(&sc->sc_poll_handle, sc->sc_ival); 3939 sc->sc_intr_xfer = xfer; 3940 xfer->ux_status = USBD_IN_PROGRESS; 3941 3942 if (!polling) 3943 mutex_exit(&sc->sc_lock); 3944 3945 return USBD_IN_PROGRESS; 3946 } 3947 3948 /* Close the root interrupt pipe. */ 3949 void 3950 uhci_root_intr_close(struct usbd_pipe *pipe) 3951 { 3952 uhci_softc_t *sc __diagused = UHCI_PIPE2SC(pipe); 3953 UHCIHIST_FUNC(); UHCIHIST_CALLED(); 3954 3955 KASSERT(mutex_owned(&sc->sc_lock)); 3956 3957 /* 3958 * The caller must arrange to have aborted the pipe already, so 3959 * there can be no intr xfer in progress. The callout may 3960 * still be pending from a prior intr xfer -- if it has already 3961 * fired, it will see there is nothing to do, and do nothing. 3962 */ 3963 KASSERT(sc->sc_intr_xfer == NULL); 3964 KASSERT(!callout_pending(&sc->sc_poll_handle)); 3965 } 3966
Indexes created Tue Sep 30 17:09:57 GMT 2025