uhci.c revision 1.209.2.3
1 /* $NetBSD: uhci.c,v 1.209.2.3 2007/10/01 05:38:05 joerg Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.209.2.3 2007/10/01 05:38:05 joerg Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data stored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 int isread; 149 uhci_soft_qh_t **qhs; 150 } intr; 151 /* Bulk pipe */ 152 struct { 153 uhci_soft_qh_t *sqh; 154 u_int length; 155 int isread; 156 } bulk; 157 /* Iso pipe */ 158 struct iso { 159 uhci_soft_td_t **stds; 160 int next, inuse; 161 } iso; 162 } u; 163 }; 164 165 Static void uhci_globalreset(uhci_softc_t *); 166 Static usbd_status uhci_portreset(uhci_softc_t*, int); 167 Static void uhci_reset(uhci_softc_t *); 168 Static void uhci_shutdown(void *v); 169 Static usbd_status uhci_run(uhci_softc_t *, int run); 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 uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 173 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 174 #if 0 175 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 176 uhci_intr_info_t *); 177 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 178 #endif 179 180 Static void uhci_free_std_chain(uhci_softc_t *, 181 uhci_soft_td_t *, uhci_soft_td_t *); 182 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 183 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 184 uhci_soft_td_t **, uhci_soft_td_t **); 185 Static void uhci_poll_hub(void *); 186 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 187 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 188 Static void uhci_idone(uhci_intr_info_t *); 189 190 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 191 192 Static void uhci_timeout(void *); 193 Static void uhci_timeout_task(void *); 194 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 200 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 201 Static void uhci_add_loop(uhci_softc_t *sc); 202 Static void uhci_rem_loop(uhci_softc_t *sc); 203 204 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 205 Static void uhci_device_isoc_enter(usbd_xfer_handle); 206 207 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 208 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 209 210 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 211 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 212 213 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 215 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 216 Static void uhci_device_ctrl_close(usbd_pipe_handle); 217 Static void uhci_device_ctrl_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 221 Static void uhci_device_intr_abort(usbd_xfer_handle); 222 Static void uhci_device_intr_close(usbd_pipe_handle); 223 Static void uhci_device_intr_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 227 Static void uhci_device_bulk_abort(usbd_xfer_handle); 228 Static void uhci_device_bulk_close(usbd_pipe_handle); 229 Static void uhci_device_bulk_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 233 Static void uhci_device_isoc_abort(usbd_xfer_handle); 234 Static void uhci_device_isoc_close(usbd_pipe_handle); 235 Static void uhci_device_isoc_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 239 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 240 Static void uhci_root_ctrl_close(usbd_pipe_handle); 241 Static void uhci_root_ctrl_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 244 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 245 Static void uhci_root_intr_abort(usbd_xfer_handle); 246 Static void uhci_root_intr_close(usbd_pipe_handle); 247 Static void uhci_root_intr_done(usbd_xfer_handle); 248 249 Static usbd_status uhci_open(usbd_pipe_handle); 250 Static void uhci_poll(struct usbd_bus *); 251 Static void uhci_softintr(void *); 252 253 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 254 255 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 258 struct uhci_pipe *pipe, int ival); 259 260 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 261 Static void uhci_noop(usbd_pipe_handle pipe); 262 263 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 264 uhci_soft_qh_t *); 265 266 #ifdef UHCI_DEBUG 267 Static void uhci_dump_all(uhci_softc_t *); 268 Static void uhci_dumpregs(uhci_softc_t *); 269 Static void uhci_dump_qhs(uhci_soft_qh_t *); 270 Static void uhci_dump_qh(uhci_soft_qh_t *); 271 Static void uhci_dump_tds(uhci_soft_td_t *); 272 Static void uhci_dump_td(uhci_soft_td_t *); 273 Static void uhci_dump_ii(uhci_intr_info_t *ii); 274 void uhci_dump(void); 275 #endif 276 277 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 278 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 279 #define UWRITE1(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 281 } while (/*CONSTCOND*/0) 282 #define UWRITE2(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 284 } while (/*CONSTCOND*/0) 285 #define UWRITE4(sc, r, x) \ 286 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 287 } while (/*CONSTCOND*/0) 288 static __inline uint8_t 289 UREAD1(uhci_softc_t *sc, bus_size_t r) 290 { 291 292 UBARR(sc); 293 return bus_space_read_1(sc->iot, sc->ioh, r); 294 } 295 296 static __inline uint16_t 297 UREAD2(uhci_softc_t *sc, bus_size_t r) 298 { 299 300 UBARR(sc); 301 return bus_space_read_2(sc->iot, sc->ioh, r); 302 } 303 304 static __inline uint32_t 305 UREAD4(uhci_softc_t *sc, bus_size_t r) 306 { 307 308 UBARR(sc); 309 return bus_space_read_4(sc->iot, sc->ioh, r); 310 } 311 312 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 313 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 314 315 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 316 317 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 318 319 #define UHCI_INTR_ENDPT 1 320 321 const struct usbd_bus_methods uhci_bus_methods = { 322 uhci_open, 323 uhci_softintr, 324 uhci_poll, 325 uhci_allocm, 326 uhci_freem, 327 uhci_allocx, 328 uhci_freex, 329 }; 330 331 const struct usbd_pipe_methods uhci_root_ctrl_methods = { 332 uhci_root_ctrl_transfer, 333 uhci_root_ctrl_start, 334 uhci_root_ctrl_abort, 335 uhci_root_ctrl_close, 336 uhci_noop, 337 uhci_root_ctrl_done, 338 }; 339 340 const struct usbd_pipe_methods uhci_root_intr_methods = { 341 uhci_root_intr_transfer, 342 uhci_root_intr_start, 343 uhci_root_intr_abort, 344 uhci_root_intr_close, 345 uhci_noop, 346 uhci_root_intr_done, 347 }; 348 349 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 350 uhci_device_ctrl_transfer, 351 uhci_device_ctrl_start, 352 uhci_device_ctrl_abort, 353 uhci_device_ctrl_close, 354 uhci_noop, 355 uhci_device_ctrl_done, 356 }; 357 358 const struct usbd_pipe_methods uhci_device_intr_methods = { 359 uhci_device_intr_transfer, 360 uhci_device_intr_start, 361 uhci_device_intr_abort, 362 uhci_device_intr_close, 363 uhci_device_clear_toggle, 364 uhci_device_intr_done, 365 }; 366 367 const struct usbd_pipe_methods uhci_device_bulk_methods = { 368 uhci_device_bulk_transfer, 369 uhci_device_bulk_start, 370 uhci_device_bulk_abort, 371 uhci_device_bulk_close, 372 uhci_device_clear_toggle, 373 uhci_device_bulk_done, 374 }; 375 376 const struct usbd_pipe_methods uhci_device_isoc_methods = { 377 uhci_device_isoc_transfer, 378 uhci_device_isoc_start, 379 uhci_device_isoc_abort, 380 uhci_device_isoc_close, 381 uhci_noop, 382 uhci_device_isoc_done, 383 }; 384 385 #define uhci_add_intr_info(sc, ii) \ 386 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 387 #define uhci_del_intr_info(ii) \ 388 do { \ 389 LIST_REMOVE((ii), list); \ 390 (ii)->list.le_prev = NULL; \ 391 } while (0) 392 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 393 394 Static inline uhci_soft_qh_t * 395 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 396 { 397 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 398 399 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 400 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 401 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 402 printf("uhci_find_prev_qh: QH not found\n"); 403 return (NULL); 404 } 405 #endif 406 } 407 return (pqh); 408 } 409 410 void 411 uhci_globalreset(uhci_softc_t *sc) 412 { 413 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 414 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 415 UHCICMD(sc, 0); /* do nothing */ 416 } 417 418 usbd_status 419 uhci_init(uhci_softc_t *sc) 420 { 421 usbd_status err; 422 int i, j; 423 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 424 uhci_soft_td_t *std; 425 426 DPRINTFN(1,("uhci_init: start\n")); 427 428 #ifdef UHCI_DEBUG 429 thesc = sc; 430 431 if (uhcidebug > 2) 432 uhci_dumpregs(sc); 433 #endif 434 435 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 436 uhci_globalreset(sc); /* reset the controller */ 437 uhci_reset(sc); 438 439 #ifdef __NetBSD__ 440 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 441 USB_MEM_RESERVE); 442 #endif 443 444 /* Allocate and initialize real frame array. */ 445 err = usb_allocmem(&sc->sc_bus, 446 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 447 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 448 if (err) 449 return (err); 450 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 451 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 452 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 453 454 /* 455 * Allocate a TD, inactive, that hangs from the last QH. 456 * This is to avoid a bug in the PIIX that makes it run berserk 457 * otherwise. 458 */ 459 std = uhci_alloc_std(sc); 460 if (std == NULL) 461 return (USBD_NOMEM); 462 std->link.std = NULL; 463 std->td.td_link = htole32(UHCI_PTR_T); 464 std->td.td_status = htole32(0); /* inactive */ 465 std->td.td_token = htole32(0); 466 std->td.td_buffer = htole32(0); 467 468 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 469 lsqh = uhci_alloc_sqh(sc); 470 if (lsqh == NULL) 471 return (USBD_NOMEM); 472 lsqh->hlink = NULL; 473 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 474 lsqh->elink = std; 475 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 476 sc->sc_last_qh = lsqh; 477 478 /* Allocate the dummy QH where bulk traffic will be queued. */ 479 bsqh = uhci_alloc_sqh(sc); 480 if (bsqh == NULL) 481 return (USBD_NOMEM); 482 bsqh->hlink = lsqh; 483 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 484 bsqh->elink = NULL; 485 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 486 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 487 488 /* Allocate dummy QH where high speed control traffic will be queued. */ 489 chsqh = uhci_alloc_sqh(sc); 490 if (chsqh == NULL) 491 return (USBD_NOMEM); 492 chsqh->hlink = bsqh; 493 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 494 chsqh->elink = NULL; 495 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 496 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 497 498 /* Allocate dummy QH where control traffic will be queued. */ 499 clsqh = uhci_alloc_sqh(sc); 500 if (clsqh == NULL) 501 return (USBD_NOMEM); 502 clsqh->hlink = bsqh; 503 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 504 clsqh->elink = NULL; 505 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 506 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 507 508 /* 509 * Make all (virtual) frame list pointers point to the interrupt 510 * queue heads and the interrupt queue heads at the control 511 * queue head and point the physical frame list to the virtual. 512 */ 513 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 514 std = uhci_alloc_std(sc); 515 sqh = uhci_alloc_sqh(sc); 516 if (std == NULL || sqh == NULL) 517 return (USBD_NOMEM); 518 std->link.sqh = sqh; 519 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 520 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 521 std->td.td_token = htole32(0); 522 std->td.td_buffer = htole32(0); 523 sqh->hlink = clsqh; 524 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 525 sqh->elink = NULL; 526 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 527 sc->sc_vframes[i].htd = std; 528 sc->sc_vframes[i].etd = std; 529 sc->sc_vframes[i].hqh = sqh; 530 sc->sc_vframes[i].eqh = sqh; 531 for (j = i; 532 j < UHCI_FRAMELIST_COUNT; 533 j += UHCI_VFRAMELIST_COUNT) 534 sc->sc_pframes[j] = htole32(std->physaddr); 535 } 536 537 LIST_INIT(&sc->sc_intrhead); 538 539 SIMPLEQ_INIT(&sc->sc_free_xfers); 540 541 usb_callout_init(sc->sc_poll_handle); 542 543 /* Set up the bus struct. */ 544 sc->sc_bus.methods = &uhci_bus_methods; 545 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 546 547 #if defined(__NetBSD__) || defined(__OpenBSD__) 548 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 549 #endif 550 551 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 552 553 DPRINTFN(1,("uhci_init: enabling\n")); 554 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 555 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 556 557 return (uhci_run(sc, 1)); /* and here we go... */ 558 } 559 560 #if defined(__NetBSD__) || defined(__OpenBSD__) 561 int 562 uhci_activate(device_ptr_t self, enum devact act) 563 { 564 struct uhci_softc *sc = (struct uhci_softc *)self; 565 int rv = 0; 566 567 switch (act) { 568 case DVACT_ACTIVATE: 569 return (EOPNOTSUPP); 570 571 case DVACT_DEACTIVATE: 572 sc->sc_dying = 1; 573 if (sc->sc_child != NULL) 574 rv = config_deactivate(sc->sc_child); 575 break; 576 } 577 return (rv); 578 } 579 580 int 581 uhci_detach(struct uhci_softc *sc, int flags) 582 { 583 usbd_xfer_handle xfer; 584 int rv = 0; 585 586 if (sc->sc_child != NULL) 587 rv = config_detach(sc->sc_child, flags); 588 589 if (rv != 0) 590 return (rv); 591 592 #if defined(__NetBSD__) || defined(__OpenBSD__) 593 shutdownhook_disestablish(sc->sc_shutdownhook); 594 #endif 595 596 /* Free all xfers associated with this HC. */ 597 for (;;) { 598 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 599 if (xfer == NULL) 600 break; 601 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 602 free(xfer, M_USB); 603 } 604 605 /* XXX free other data structures XXX */ 606 607 return (rv); 608 } 609 #endif 610 611 usbd_status 612 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 613 { 614 struct uhci_softc *sc = (struct uhci_softc *)bus; 615 usbd_status status; 616 u_int32_t n; 617 618 /* 619 * XXX 620 * Since we are allocating a buffer we can assume that we will 621 * need TDs for it. Since we don't want to allocate those from 622 * an interrupt context, we allocate them here and free them again. 623 * This is no guarantee that we'll get the TDs next time... 624 */ 625 n = size / 8; 626 if (n > 16) { 627 u_int32_t i; 628 uhci_soft_td_t **stds; 629 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 630 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 631 M_WAITOK|M_ZERO); 632 for(i=0; i < n; i++) 633 stds[i] = uhci_alloc_std(sc); 634 for(i=0; i < n; i++) 635 if (stds[i] != NULL) 636 uhci_free_std(sc, stds[i]); 637 free(stds, M_TEMP); 638 } 639 640 641 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 642 #ifdef __NetBSD__ 643 if (status == USBD_NOMEM) 644 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 645 #endif 646 return status; 647 } 648 649 void 650 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 651 { 652 #ifdef __NetBSD__ 653 if (dma->block->flags & USB_DMA_RESERVE) { 654 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 655 dma); 656 return; 657 } 658 #endif 659 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 660 } 661 662 usbd_xfer_handle 663 uhci_allocx(struct usbd_bus *bus) 664 { 665 struct uhci_softc *sc = (struct uhci_softc *)bus; 666 usbd_xfer_handle xfer; 667 668 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 669 if (xfer != NULL) { 670 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 671 #ifdef DIAGNOSTIC 672 if (xfer->busy_free != XFER_FREE) { 673 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 674 xfer->busy_free); 675 } 676 #endif 677 } else { 678 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 679 } 680 if (xfer != NULL) { 681 memset(xfer, 0, sizeof (struct uhci_xfer)); 682 UXFER(xfer)->iinfo.sc = sc; 683 #ifdef DIAGNOSTIC 684 UXFER(xfer)->iinfo.isdone = 1; 685 xfer->busy_free = XFER_BUSY; 686 #endif 687 } 688 return (xfer); 689 } 690 691 void 692 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 693 { 694 struct uhci_softc *sc = (struct uhci_softc *)bus; 695 696 #ifdef DIAGNOSTIC 697 if (xfer->busy_free != XFER_BUSY) { 698 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 699 xfer->busy_free); 700 } 701 xfer->busy_free = XFER_FREE; 702 if (!UXFER(xfer)->iinfo.isdone) { 703 printf("uhci_freex: !isdone\n"); 704 } 705 #endif 706 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 707 } 708 709 /* 710 * Shut down the controller when the system is going down. 711 */ 712 void 713 uhci_shutdown(void *v) 714 { 715 uhci_softc_t *sc = v; 716 int s; 717 718 DPRINTF(("uhci_shutdown: stopping the HC\n")); 719 720 /* 721 * Use polling mode to prevent the interrupts shutting 722 * us down before we shut them down. 723 */ 724 s = splhardusb(); 725 sc->sc_bus.use_polling++; 726 uhci_run(sc, 0); /* stop the controller */ 727 sc->sc_bus.use_polling--; 728 splx(s); 729 } 730 731 /* 732 * Handle suspend/resume. 733 * 734 * We need to switch to polling mode here, because this routine is 735 * called from an interrupt context. This is all right since we 736 * are almost suspended anyway. 737 */ 738 void 739 uhci_resume(device_t dv) 740 { 741 uhci_softc_t *sc = device_private(dv); 742 int cmd; 743 int s; 744 745 s = splhardusb(); 746 747 cmd = UREAD2(sc, UHCI_CMD); 748 sc->sc_bus.use_polling++; 749 if (cmd & UHCI_CMD_RS) 750 uhci_run(sc, 0); 751 752 /* restore saved state */ 753 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 754 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 755 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 756 757 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 758 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 759 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 760 UHCICMD(sc, UHCI_CMD_MAXP); 761 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 762 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 763 uhci_run(sc, 1); /* and start traffic again */ 764 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 765 sc->sc_bus.use_polling--; 766 if (sc->sc_intr_xfer != NULL) 767 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, 768 sc->sc_intr_xfer); 769 #ifdef UHCI_DEBUG 770 if (uhcidebug > 2) 771 uhci_dumpregs(sc); 772 #endif 773 774 splx(s); 775 } 776 777 void 778 uhci_suspend(device_t dv) 779 { 780 uhci_softc_t *sc = device_private(dv); 781 int cmd; 782 int s; 783 784 s = splhardusb(); 785 786 cmd = UREAD2(sc, UHCI_CMD); 787 788 #ifdef UHCI_DEBUG 789 if (uhcidebug > 2) 790 uhci_dumpregs(sc); 791 #endif 792 if (sc->sc_intr_xfer != NULL) 793 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 794 sc->sc_intr_xfer); 795 sc->sc_bus.use_polling++; 796 uhci_run(sc, 0); /* stop the controller */ 797 cmd &= ~UHCI_CMD_RS; 798 799 /* save some state if BIOS doesn't */ 800 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 801 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 802 803 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 804 805 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter suspend */ 806 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 807 sc->sc_bus.use_polling--; 808 809 splx(s); 810 } 811 812 #ifdef UHCI_DEBUG 813 Static void 814 uhci_dumpregs(uhci_softc_t *sc) 815 { 816 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 817 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 818 USBDEVNAME(sc->sc_bus.bdev), 819 UREAD2(sc, UHCI_CMD), 820 UREAD2(sc, UHCI_STS), 821 UREAD2(sc, UHCI_INTR), 822 UREAD2(sc, UHCI_FRNUM), 823 UREAD4(sc, UHCI_FLBASEADDR), 824 UREAD1(sc, UHCI_SOF), 825 UREAD2(sc, UHCI_PORTSC1), 826 UREAD2(sc, UHCI_PORTSC2))); 827 } 828 829 void 830 uhci_dump_td(uhci_soft_td_t *p) 831 { 832 char sbuf[128], sbuf2[128]; 833 834 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 835 "token=0x%08lx buffer=0x%08lx\n", 836 p, (long)p->physaddr, 837 (long)le32toh(p->td.td_link), 838 (long)le32toh(p->td.td_status), 839 (long)le32toh(p->td.td_token), 840 (long)le32toh(p->td.td_buffer))); 841 842 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 843 sbuf, sizeof(sbuf)); 844 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 845 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 846 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 847 sbuf2, sizeof(sbuf2)); 848 849 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 850 "D=%d,maxlen=%d\n", sbuf, sbuf2, 851 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 852 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 853 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 854 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 855 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 856 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 857 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 858 } 859 860 void 861 uhci_dump_qh(uhci_soft_qh_t *sqh) 862 { 863 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 864 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 865 le32toh(sqh->qh.qh_elink))); 866 } 867 868 869 #if 1 870 void 871 uhci_dump(void) 872 { 873 uhci_dump_all(thesc); 874 } 875 #endif 876 877 void 878 uhci_dump_all(uhci_softc_t *sc) 879 { 880 uhci_dumpregs(sc); 881 printf("intrs=%d\n", sc->sc_bus.no_intrs); 882 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 883 uhci_dump_qh(sc->sc_lctl_start); 884 } 885 886 887 void 888 uhci_dump_qhs(uhci_soft_qh_t *sqh) 889 { 890 uhci_dump_qh(sqh); 891 892 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 893 * Traverses sideways first, then down. 894 * 895 * QH1 896 * QH2 897 * No QH 898 * TD2.1 899 * TD2.2 900 * TD1.1 901 * etc. 902 * 903 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 904 */ 905 906 907 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 908 uhci_dump_qhs(sqh->hlink); 909 else 910 DPRINTF(("No QH\n")); 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 TD\n")); 916 } 917 918 void 919 uhci_dump_tds(uhci_soft_td_t *std) 920 { 921 uhci_soft_td_t *td; 922 923 for(td = std; td != NULL; td = td->link.std) { 924 uhci_dump_td(td); 925 926 /* Check whether the link pointer in this TD marks 927 * the link pointer as end of queue. This avoids 928 * printing the free list in case the queue/TD has 929 * already been moved there (seatbelt). 930 */ 931 if (le32toh(td->td.td_link) & UHCI_PTR_T || 932 le32toh(td->td.td_link) == 0) 933 break; 934 } 935 } 936 937 Static void 938 uhci_dump_ii(uhci_intr_info_t *ii) 939 { 940 usbd_pipe_handle pipe; 941 usb_endpoint_descriptor_t *ed; 942 usbd_device_handle dev; 943 944 #ifdef DIAGNOSTIC 945 #define DONE ii->isdone 946 #else 947 #define DONE 0 948 #endif 949 if (ii == NULL) { 950 printf("ii NULL\n"); 951 return; 952 } 953 if (ii->xfer == NULL) { 954 printf("ii %p: done=%d xfer=NULL\n", 955 ii, DONE); 956 return; 957 } 958 pipe = ii->xfer->pipe; 959 if (pipe == NULL) { 960 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 961 ii, DONE, ii->xfer); 962 return; 963 } 964 if (pipe->endpoint == NULL) { 965 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 966 ii, DONE, ii->xfer, pipe); 967 return; 968 } 969 if (pipe->device == NULL) { 970 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 971 ii, DONE, ii->xfer, pipe); 972 return; 973 } 974 ed = pipe->endpoint->edesc; 975 dev = pipe->device; 976 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 977 ii, DONE, ii->xfer, dev, 978 UGETW(dev->ddesc.idVendor), 979 UGETW(dev->ddesc.idProduct), 980 dev->address, pipe, 981 ed->bEndpointAddress, ed->bmAttributes); 982 #undef DONE 983 } 984 985 void uhci_dump_iis(struct uhci_softc *sc); 986 void 987 uhci_dump_iis(struct uhci_softc *sc) 988 { 989 uhci_intr_info_t *ii; 990 991 printf("intr_info list:\n"); 992 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 993 uhci_dump_ii(ii); 994 } 995 996 void iidump(void); 997 void iidump(void) { uhci_dump_iis(thesc); } 998 999 #endif 1000 1001 /* 1002 * This routine is executed periodically and simulates interrupts 1003 * from the root controller interrupt pipe for port status change. 1004 */ 1005 void 1006 uhci_poll_hub(void *addr) 1007 { 1008 usbd_xfer_handle xfer = addr; 1009 usbd_pipe_handle pipe = xfer->pipe; 1010 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1011 int s; 1012 u_char *p; 1013 1014 DPRINTFN(20, ("uhci_poll_hub\n")); 1015 1016 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1017 1018 p = KERNADDR(&xfer->dmabuf, 0); 1019 p[0] = 0; 1020 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1021 p[0] |= 1<<1; 1022 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1023 p[0] |= 1<<2; 1024 if (p[0] == 0) 1025 /* No change, try again in a while */ 1026 return; 1027 1028 xfer->actlen = 1; 1029 xfer->status = USBD_NORMAL_COMPLETION; 1030 s = splusb(); 1031 xfer->device->bus->intr_context++; 1032 usb_transfer_complete(xfer); 1033 xfer->device->bus->intr_context--; 1034 splx(s); 1035 } 1036 1037 void 1038 uhci_root_intr_done(usbd_xfer_handle xfer) 1039 { 1040 } 1041 1042 void 1043 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1044 { 1045 } 1046 1047 /* 1048 * Let the last QH loop back to the high speed control transfer QH. 1049 * This is what intel calls "bandwidth reclamation" and improves 1050 * USB performance a lot for some devices. 1051 * If we are already looping, just count it. 1052 */ 1053 void 1054 uhci_add_loop(uhci_softc_t *sc) { 1055 #ifdef UHCI_DEBUG 1056 if (uhcinoloop) 1057 return; 1058 #endif 1059 if (++sc->sc_loops == 1) { 1060 DPRINTFN(5,("uhci_start_loop: add\n")); 1061 /* Note, we don't loop back the soft pointer. */ 1062 sc->sc_last_qh->qh.qh_hlink = 1063 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1064 } 1065 } 1066 1067 void 1068 uhci_rem_loop(uhci_softc_t *sc) { 1069 #ifdef UHCI_DEBUG 1070 if (uhcinoloop) 1071 return; 1072 #endif 1073 if (--sc->sc_loops == 0) { 1074 DPRINTFN(5,("uhci_end_loop: remove\n")); 1075 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1076 } 1077 } 1078 1079 /* Add high speed control QH, called at splusb(). */ 1080 void 1081 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1082 { 1083 uhci_soft_qh_t *eqh; 1084 1085 SPLUSBCHECK; 1086 1087 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1088 eqh = sc->sc_hctl_end; 1089 sqh->hlink = eqh->hlink; 1090 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1091 eqh->hlink = sqh; 1092 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1093 sc->sc_hctl_end = sqh; 1094 #ifdef UHCI_CTL_LOOP 1095 uhci_add_loop(sc); 1096 #endif 1097 } 1098 1099 /* Remove high speed control QH, called at splusb(). */ 1100 void 1101 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1102 { 1103 uhci_soft_qh_t *pqh; 1104 1105 SPLUSBCHECK; 1106 1107 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1108 #ifdef UHCI_CTL_LOOP 1109 uhci_rem_loop(sc); 1110 #endif 1111 /* 1112 * The T bit should be set in the elink of the QH so that the HC 1113 * doesn't follow the pointer. This condition may fail if the 1114 * the transferred packet was short so that the QH still points 1115 * at the last used TD. 1116 * In this case we set the T bit and wait a little for the HC 1117 * to stop looking at the TD. 1118 */ 1119 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1120 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1121 delay(UHCI_QH_REMOVE_DELAY); 1122 } 1123 1124 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1125 pqh->hlink = sqh->hlink; 1126 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1127 delay(UHCI_QH_REMOVE_DELAY); 1128 if (sc->sc_hctl_end == sqh) 1129 sc->sc_hctl_end = pqh; 1130 } 1131 1132 /* Add low speed control QH, called at splusb(). */ 1133 void 1134 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1135 { 1136 uhci_soft_qh_t *eqh; 1137 1138 SPLUSBCHECK; 1139 1140 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1141 eqh = sc->sc_lctl_end; 1142 sqh->hlink = eqh->hlink; 1143 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1144 eqh->hlink = sqh; 1145 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1146 sc->sc_lctl_end = sqh; 1147 } 1148 1149 /* Remove low speed control QH, called at splusb(). */ 1150 void 1151 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1152 { 1153 uhci_soft_qh_t *pqh; 1154 1155 SPLUSBCHECK; 1156 1157 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1158 /* See comment in uhci_remove_hs_ctrl() */ 1159 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1160 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1161 delay(UHCI_QH_REMOVE_DELAY); 1162 } 1163 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1164 pqh->hlink = sqh->hlink; 1165 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1166 delay(UHCI_QH_REMOVE_DELAY); 1167 if (sc->sc_lctl_end == sqh) 1168 sc->sc_lctl_end = pqh; 1169 } 1170 1171 /* Add bulk QH, called at splusb(). */ 1172 void 1173 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1174 { 1175 uhci_soft_qh_t *eqh; 1176 1177 SPLUSBCHECK; 1178 1179 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1180 eqh = sc->sc_bulk_end; 1181 sqh->hlink = eqh->hlink; 1182 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1183 eqh->hlink = sqh; 1184 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1185 sc->sc_bulk_end = sqh; 1186 uhci_add_loop(sc); 1187 } 1188 1189 /* Remove bulk QH, called at splusb(). */ 1190 void 1191 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1192 { 1193 uhci_soft_qh_t *pqh; 1194 1195 SPLUSBCHECK; 1196 1197 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1198 uhci_rem_loop(sc); 1199 /* See comment in uhci_remove_hs_ctrl() */ 1200 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1201 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1202 delay(UHCI_QH_REMOVE_DELAY); 1203 } 1204 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1205 pqh->hlink = sqh->hlink; 1206 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1207 delay(UHCI_QH_REMOVE_DELAY); 1208 if (sc->sc_bulk_end == sqh) 1209 sc->sc_bulk_end = pqh; 1210 } 1211 1212 Static int uhci_intr1(uhci_softc_t *); 1213 1214 int 1215 uhci_intr(void *arg) 1216 { 1217 uhci_softc_t *sc = arg; 1218 1219 if (sc->sc_dying) 1220 return (0); 1221 1222 if (sc->sc_bus.use_polling) { 1223 #ifdef DIAGNOSTIC 1224 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1225 #endif 1226 return (0); 1227 } 1228 1229 return (uhci_intr1(sc)); 1230 } 1231 1232 int 1233 uhci_intr1(uhci_softc_t *sc) 1234 { 1235 int status; 1236 int ack; 1237 1238 #ifdef UHCI_DEBUG 1239 if (uhcidebug > 15) { 1240 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1241 uhci_dumpregs(sc); 1242 } 1243 #endif 1244 1245 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1246 if (status == 0) /* The interrupt was not for us. */ 1247 return (0); 1248 1249 if (sc->sc_suspend != PWR_RESUME) { 1250 #ifdef DIAGNOSTIC 1251 printf("%s: interrupt while not operating ignored\n", 1252 USBDEVNAME(sc->sc_bus.bdev)); 1253 #endif 1254 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1255 return (0); 1256 } 1257 1258 ack = 0; 1259 if (status & UHCI_STS_USBINT) 1260 ack |= UHCI_STS_USBINT; 1261 if (status & UHCI_STS_USBEI) 1262 ack |= UHCI_STS_USBEI; 1263 if (status & UHCI_STS_RD) { 1264 ack |= UHCI_STS_RD; 1265 #ifdef UHCI_DEBUG 1266 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1267 #endif 1268 } 1269 if (status & UHCI_STS_HSE) { 1270 ack |= UHCI_STS_HSE; 1271 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1272 } 1273 if (status & UHCI_STS_HCPE) { 1274 ack |= UHCI_STS_HCPE; 1275 printf("%s: host controller process error\n", 1276 USBDEVNAME(sc->sc_bus.bdev)); 1277 } 1278 if (status & UHCI_STS_HCH) { 1279 /* no acknowledge needed */ 1280 if (!sc->sc_dying) { 1281 printf("%s: host controller halted\n", 1282 USBDEVNAME(sc->sc_bus.bdev)); 1283 #ifdef UHCI_DEBUG 1284 uhci_dump_all(sc); 1285 #endif 1286 } 1287 sc->sc_dying = 1; 1288 } 1289 1290 if (!ack) 1291 return (0); /* nothing to acknowledge */ 1292 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1293 1294 sc->sc_bus.no_intrs++; 1295 usb_schedsoftintr(&sc->sc_bus); 1296 1297 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1298 1299 return (1); 1300 } 1301 1302 void 1303 uhci_softintr(void *v) 1304 { 1305 uhci_softc_t *sc = v; 1306 uhci_intr_info_t *ii, *nextii; 1307 1308 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1309 sc->sc_bus.intr_context)); 1310 1311 sc->sc_bus.intr_context++; 1312 1313 /* 1314 * Interrupts on UHCI really suck. When the host controller 1315 * interrupts because a transfer is completed there is no 1316 * way of knowing which transfer it was. You can scan down 1317 * the TDs and QHs of the previous frame to limit the search, 1318 * but that assumes that the interrupt was not delayed by more 1319 * than 1 ms, which may not always be true (e.g. after debug 1320 * output on a slow console). 1321 * We scan all interrupt descriptors to see if any have 1322 * completed. 1323 */ 1324 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1325 nextii = LIST_NEXT(ii, list); 1326 uhci_check_intr(sc, ii); 1327 } 1328 1329 #ifdef USB_USE_SOFTINTR 1330 if (sc->sc_softwake) { 1331 sc->sc_softwake = 0; 1332 wakeup(&sc->sc_softwake); 1333 } 1334 #endif /* USB_USE_SOFTINTR */ 1335 1336 sc->sc_bus.intr_context--; 1337 } 1338 1339 /* Check for an interrupt. */ 1340 void 1341 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1342 { 1343 uhci_soft_td_t *std, *lstd; 1344 u_int32_t status; 1345 1346 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1347 #ifdef DIAGNOSTIC 1348 if (ii == NULL) { 1349 printf("uhci_check_intr: no ii? %p\n", ii); 1350 return; 1351 } 1352 #endif 1353 if (ii->xfer->status == USBD_CANCELLED || 1354 ii->xfer->status == USBD_TIMEOUT) { 1355 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1356 return; 1357 } 1358 1359 if (ii->stdstart == NULL) 1360 return; 1361 lstd = ii->stdend; 1362 #ifdef DIAGNOSTIC 1363 if (lstd == NULL) { 1364 printf("uhci_check_intr: std==0\n"); 1365 return; 1366 } 1367 #endif 1368 /* 1369 * If the last TD is still active we need to check whether there 1370 * is an error somewhere in the middle, or whether there was a 1371 * short packet (SPD and not ACTIVE). 1372 */ 1373 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1374 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1375 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1376 status = le32toh(std->td.td_status); 1377 /* If there's an active TD the xfer isn't done. */ 1378 if (status & UHCI_TD_ACTIVE) 1379 break; 1380 /* Any kind of error makes the xfer done. */ 1381 if (status & UHCI_TD_STALLED) 1382 goto done; 1383 /* We want short packets, and it is short: it's done */ 1384 if ((status & UHCI_TD_SPD) && 1385 UHCI_TD_GET_ACTLEN(status) < 1386 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1387 goto done; 1388 } 1389 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1390 ii, ii->stdstart)); 1391 return; 1392 } 1393 done: 1394 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1395 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1396 uhci_idone(ii); 1397 } 1398 1399 /* Called at splusb() */ 1400 void 1401 uhci_idone(uhci_intr_info_t *ii) 1402 { 1403 usbd_xfer_handle xfer = ii->xfer; 1404 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1405 uhci_soft_td_t *std; 1406 u_int32_t status = 0, nstatus; 1407 int actlen; 1408 1409 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1410 #ifdef DIAGNOSTIC 1411 { 1412 int s = splhigh(); 1413 if (ii->isdone) { 1414 splx(s); 1415 #ifdef UHCI_DEBUG 1416 printf("uhci_idone: ii is done!\n "); 1417 uhci_dump_ii(ii); 1418 #else 1419 printf("uhci_idone: ii=%p is done!\n", ii); 1420 #endif 1421 return; 1422 } 1423 ii->isdone = 1; 1424 splx(s); 1425 } 1426 #endif 1427 1428 if (xfer->nframes != 0) { 1429 /* Isoc transfer, do things differently. */ 1430 uhci_soft_td_t **stds = upipe->u.iso.stds; 1431 int i, n, nframes, len; 1432 1433 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1434 1435 nframes = xfer->nframes; 1436 actlen = 0; 1437 n = UXFER(xfer)->curframe; 1438 for (i = 0; i < nframes; i++) { 1439 std = stds[n]; 1440 #ifdef UHCI_DEBUG 1441 if (uhcidebug > 5) { 1442 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1443 uhci_dump_td(std); 1444 } 1445 #endif 1446 if (++n >= UHCI_VFRAMELIST_COUNT) 1447 n = 0; 1448 status = le32toh(std->td.td_status); 1449 len = UHCI_TD_GET_ACTLEN(status); 1450 xfer->frlengths[i] = len; 1451 actlen += len; 1452 } 1453 upipe->u.iso.inuse -= nframes; 1454 xfer->actlen = actlen; 1455 xfer->status = USBD_NORMAL_COMPLETION; 1456 goto end; 1457 } 1458 1459 #ifdef UHCI_DEBUG 1460 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1461 ii, xfer, upipe)); 1462 if (uhcidebug > 10) 1463 uhci_dump_tds(ii->stdstart); 1464 #endif 1465 1466 /* The transfer is done, compute actual length and status. */ 1467 actlen = 0; 1468 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1469 nstatus = le32toh(std->td.td_status); 1470 if (nstatus & UHCI_TD_ACTIVE) 1471 break; 1472 1473 status = nstatus; 1474 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1475 UHCI_TD_PID_SETUP) 1476 actlen += UHCI_TD_GET_ACTLEN(status); 1477 else { 1478 /* 1479 * UHCI will report CRCTO in addition to a STALL or NAK 1480 * for a SETUP transaction. See section 3.2.2, "TD 1481 * CONTROL AND STATUS". 1482 */ 1483 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1484 status &= ~UHCI_TD_CRCTO; 1485 } 1486 } 1487 /* If there are left over TDs we need to update the toggle. */ 1488 if (std != NULL) 1489 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1490 1491 status &= UHCI_TD_ERROR; 1492 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1493 actlen, status)); 1494 xfer->actlen = actlen; 1495 if (status != 0) { 1496 #ifdef UHCI_DEBUG 1497 char sbuf[128]; 1498 1499 bitmask_snprintf((u_int32_t)status, 1500 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1501 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1502 sbuf, sizeof(sbuf)); 1503 1504 DPRINTFN((status == UHCI_TD_STALLED)*10, 1505 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1506 "status 0x%s\n", 1507 xfer->pipe->device->address, 1508 xfer->pipe->endpoint->edesc->bEndpointAddress, 1509 sbuf)); 1510 #endif 1511 1512 if (status == UHCI_TD_STALLED) 1513 xfer->status = USBD_STALLED; 1514 else 1515 xfer->status = USBD_IOERROR; /* more info XXX */ 1516 } else { 1517 xfer->status = USBD_NORMAL_COMPLETION; 1518 } 1519 1520 end: 1521 usb_transfer_complete(xfer); 1522 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1523 } 1524 1525 /* 1526 * Called when a request does not complete. 1527 */ 1528 void 1529 uhci_timeout(void *addr) 1530 { 1531 uhci_intr_info_t *ii = addr; 1532 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1533 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1534 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1535 1536 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1537 1538 if (sc->sc_dying) { 1539 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1540 return; 1541 } 1542 1543 /* Execute the abort in a process context. */ 1544 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1545 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1546 USB_TASKQ_HC); 1547 } 1548 1549 void 1550 uhci_timeout_task(void *addr) 1551 { 1552 usbd_xfer_handle xfer = addr; 1553 int s; 1554 1555 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1556 1557 s = splusb(); 1558 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1559 splx(s); 1560 } 1561 1562 /* 1563 * Wait here until controller claims to have an interrupt. 1564 * Then call uhci_intr and return. Use timeout to avoid waiting 1565 * too long. 1566 * Only used during boot when interrupts are not enabled yet. 1567 */ 1568 void 1569 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1570 { 1571 int timo = xfer->timeout; 1572 uhci_intr_info_t *ii; 1573 1574 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1575 1576 xfer->status = USBD_IN_PROGRESS; 1577 for (; timo >= 0; timo--) { 1578 usb_delay_ms(&sc->sc_bus, 1); 1579 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1580 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1581 uhci_intr1(sc); 1582 if (xfer->status != USBD_IN_PROGRESS) 1583 return; 1584 } 1585 } 1586 1587 /* Timeout */ 1588 DPRINTF(("uhci_waitintr: timeout\n")); 1589 for (ii = LIST_FIRST(&sc->sc_intrhead); 1590 ii != NULL && ii->xfer != xfer; 1591 ii = LIST_NEXT(ii, list)) 1592 ; 1593 #ifdef DIAGNOSTIC 1594 if (ii == NULL) 1595 panic("uhci_waitintr: lost intr_info"); 1596 #endif 1597 uhci_idone(ii); 1598 } 1599 1600 void 1601 uhci_poll(struct usbd_bus *bus) 1602 { 1603 uhci_softc_t *sc = (uhci_softc_t *)bus; 1604 1605 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1606 uhci_intr1(sc); 1607 } 1608 1609 void 1610 uhci_reset(uhci_softc_t *sc) 1611 { 1612 int n; 1613 1614 UHCICMD(sc, UHCI_CMD_HCRESET); 1615 /* The reset bit goes low when the controller is done. */ 1616 for (n = 0; n < UHCI_RESET_TIMEOUT && 1617 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1618 usb_delay_ms(&sc->sc_bus, 1); 1619 if (n >= UHCI_RESET_TIMEOUT) 1620 printf("%s: controller did not reset\n", 1621 USBDEVNAME(sc->sc_bus.bdev)); 1622 } 1623 1624 usbd_status 1625 uhci_run(uhci_softc_t *sc, int run) 1626 { 1627 int s, n, running; 1628 u_int16_t cmd; 1629 1630 run = run != 0; 1631 s = splhardusb(); 1632 DPRINTF(("uhci_run: setting run=%d\n", run)); 1633 cmd = UREAD2(sc, UHCI_CMD); 1634 if (run) 1635 cmd |= UHCI_CMD_RS; 1636 else 1637 cmd &= ~UHCI_CMD_RS; 1638 UHCICMD(sc, cmd); 1639 for(n = 0; n < 10; n++) { 1640 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1641 /* return when we've entered the state we want */ 1642 if (run == running) { 1643 splx(s); 1644 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1645 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1646 return (USBD_NORMAL_COMPLETION); 1647 } 1648 usb_delay_ms(&sc->sc_bus, 1); 1649 } 1650 splx(s); 1651 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1652 run ? "start" : "stop"); 1653 return (USBD_IOERROR); 1654 } 1655 1656 /* 1657 * Memory management routines. 1658 * uhci_alloc_std allocates TDs 1659 * uhci_alloc_sqh allocates QHs 1660 * These two routines do their own free list management, 1661 * partly for speed, partly because allocating DMAable memory 1662 * has page size granularaity so much memory would be wasted if 1663 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1664 */ 1665 1666 uhci_soft_td_t * 1667 uhci_alloc_std(uhci_softc_t *sc) 1668 { 1669 uhci_soft_td_t *std; 1670 usbd_status err; 1671 int i, offs; 1672 usb_dma_t dma; 1673 1674 if (sc->sc_freetds == NULL) { 1675 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1676 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1677 UHCI_TD_ALIGN, &dma); 1678 if (err) 1679 return (0); 1680 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1681 offs = i * UHCI_STD_SIZE; 1682 std = KERNADDR(&dma, offs); 1683 std->physaddr = DMAADDR(&dma, offs); 1684 std->link.std = sc->sc_freetds; 1685 sc->sc_freetds = std; 1686 } 1687 } 1688 std = sc->sc_freetds; 1689 sc->sc_freetds = std->link.std; 1690 memset(&std->td, 0, sizeof(uhci_td_t)); 1691 return std; 1692 } 1693 1694 void 1695 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1696 { 1697 #ifdef DIAGNOSTIC 1698 #define TD_IS_FREE 0x12345678 1699 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1700 printf("uhci_free_std: freeing free TD %p\n", std); 1701 return; 1702 } 1703 std->td.td_token = htole32(TD_IS_FREE); 1704 #endif 1705 std->link.std = sc->sc_freetds; 1706 sc->sc_freetds = std; 1707 } 1708 1709 uhci_soft_qh_t * 1710 uhci_alloc_sqh(uhci_softc_t *sc) 1711 { 1712 uhci_soft_qh_t *sqh; 1713 usbd_status err; 1714 int i, offs; 1715 usb_dma_t dma; 1716 1717 if (sc->sc_freeqhs == NULL) { 1718 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1719 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1720 UHCI_QH_ALIGN, &dma); 1721 if (err) 1722 return (0); 1723 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1724 offs = i * UHCI_SQH_SIZE; 1725 sqh = KERNADDR(&dma, offs); 1726 sqh->physaddr = DMAADDR(&dma, offs); 1727 sqh->hlink = sc->sc_freeqhs; 1728 sc->sc_freeqhs = sqh; 1729 } 1730 } 1731 sqh = sc->sc_freeqhs; 1732 sc->sc_freeqhs = sqh->hlink; 1733 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1734 return (sqh); 1735 } 1736 1737 void 1738 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1739 { 1740 sqh->hlink = sc->sc_freeqhs; 1741 sc->sc_freeqhs = sqh; 1742 } 1743 1744 void 1745 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1746 uhci_soft_td_t *stdend) 1747 { 1748 uhci_soft_td_t *p; 1749 1750 for (; std != stdend; std = p) { 1751 p = std->link.std; 1752 uhci_free_std(sc, std); 1753 } 1754 } 1755 1756 usbd_status 1757 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1758 int rd, u_int16_t flags, usb_dma_t *dma, 1759 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1760 { 1761 uhci_soft_td_t *p, *lastp; 1762 uhci_physaddr_t lastlink; 1763 int i, ntd, l, tog, maxp; 1764 u_int32_t status; 1765 int addr = upipe->pipe.device->address; 1766 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1767 1768 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1769 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1770 upipe->pipe.device->speed, flags)); 1771 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1772 if (maxp == 0) { 1773 printf("uhci_alloc_std_chain: maxp=0\n"); 1774 return (USBD_INVAL); 1775 } 1776 ntd = (len + maxp - 1) / maxp; 1777 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1778 ntd++; 1779 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1780 if (ntd == 0) { 1781 *sp = *ep = 0; 1782 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1783 return (USBD_NORMAL_COMPLETION); 1784 } 1785 tog = upipe->nexttoggle; 1786 if (ntd % 2 == 0) 1787 tog ^= 1; 1788 upipe->nexttoggle = tog ^ 1; 1789 lastp = NULL; 1790 lastlink = UHCI_PTR_T; 1791 ntd--; 1792 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1793 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1794 status |= UHCI_TD_LS; 1795 if (flags & USBD_SHORT_XFER_OK) 1796 status |= UHCI_TD_SPD; 1797 for (i = ntd; i >= 0; i--) { 1798 p = uhci_alloc_std(sc); 1799 if (p == NULL) { 1800 KASSERT(lastp != NULL); 1801 uhci_free_std_chain(sc, lastp, NULL); 1802 return (USBD_NOMEM); 1803 } 1804 p->link.std = lastp; 1805 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1806 lastp = p; 1807 lastlink = p->physaddr; 1808 p->td.td_status = htole32(status); 1809 if (i == ntd) { 1810 /* last TD */ 1811 l = len % maxp; 1812 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1813 l = maxp; 1814 *ep = p; 1815 } else 1816 l = maxp; 1817 p->td.td_token = 1818 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1819 UHCI_TD_OUT(l, endpt, addr, tog)); 1820 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1821 tog ^= 1; 1822 } 1823 *sp = lastp; 1824 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1825 upipe->nexttoggle)); 1826 return (USBD_NORMAL_COMPLETION); 1827 } 1828 1829 void 1830 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1831 { 1832 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1833 upipe->nexttoggle = 0; 1834 } 1835 1836 void 1837 uhci_noop(usbd_pipe_handle pipe) 1838 { 1839 } 1840 1841 usbd_status 1842 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1843 { 1844 usbd_status err; 1845 1846 /* Insert last in queue. */ 1847 err = usb_insert_transfer(xfer); 1848 if (err) 1849 return (err); 1850 1851 /* 1852 * Pipe isn't running (otherwise err would be USBD_INPROG), 1853 * so start it first. 1854 */ 1855 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1856 } 1857 1858 usbd_status 1859 uhci_device_bulk_start(usbd_xfer_handle xfer) 1860 { 1861 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1862 usbd_device_handle dev = upipe->pipe.device; 1863 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1864 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1865 uhci_soft_td_t *data, *dataend; 1866 uhci_soft_qh_t *sqh; 1867 usbd_status err; 1868 int len, isread, endpt; 1869 int s; 1870 1871 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1872 xfer, xfer->length, xfer->flags, ii)); 1873 1874 if (sc->sc_dying) 1875 return (USBD_IOERROR); 1876 1877 #ifdef DIAGNOSTIC 1878 if (xfer->rqflags & URQ_REQUEST) 1879 panic("uhci_device_bulk_transfer: a request"); 1880 #endif 1881 1882 len = xfer->length; 1883 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1884 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1885 sqh = upipe->u.bulk.sqh; 1886 1887 upipe->u.bulk.isread = isread; 1888 upipe->u.bulk.length = len; 1889 1890 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1891 &xfer->dmabuf, &data, &dataend); 1892 if (err) 1893 return (err); 1894 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1895 1896 #ifdef UHCI_DEBUG 1897 if (uhcidebug > 8) { 1898 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1899 uhci_dump_tds(data); 1900 } 1901 #endif 1902 1903 /* Set up interrupt info. */ 1904 ii->xfer = xfer; 1905 ii->stdstart = data; 1906 ii->stdend = dataend; 1907 #ifdef DIAGNOSTIC 1908 if (!ii->isdone) { 1909 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1910 } 1911 ii->isdone = 0; 1912 #endif 1913 1914 sqh->elink = data; 1915 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1916 1917 s = splusb(); 1918 uhci_add_bulk(sc, sqh); 1919 uhci_add_intr_info(sc, ii); 1920 1921 if (xfer->timeout && !sc->sc_bus.use_polling) { 1922 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1923 uhci_timeout, ii); 1924 } 1925 xfer->status = USBD_IN_PROGRESS; 1926 splx(s); 1927 1928 #ifdef UHCI_DEBUG 1929 if (uhcidebug > 10) { 1930 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1931 uhci_dump_tds(data); 1932 } 1933 #endif 1934 1935 if (sc->sc_bus.use_polling) 1936 uhci_waitintr(sc, xfer); 1937 1938 return (USBD_IN_PROGRESS); 1939 } 1940 1941 /* Abort a device bulk request. */ 1942 void 1943 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1944 { 1945 DPRINTF(("uhci_device_bulk_abort:\n")); 1946 uhci_abort_xfer(xfer, USBD_CANCELLED); 1947 } 1948 1949 /* 1950 * Abort a device request. 1951 * If this routine is called at splusb() it guarantees that the request 1952 * will be removed from the hardware scheduling and that the callback 1953 * for it will be called with USBD_CANCELLED status. 1954 * It's impossible to guarantee that the requested transfer will not 1955 * have happened since the hardware runs concurrently. 1956 * If the transaction has already happened we rely on the ordinary 1957 * interrupt processing to process it. 1958 */ 1959 void 1960 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1961 { 1962 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1963 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1964 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1965 uhci_soft_td_t *std; 1966 int s; 1967 int wake; 1968 1969 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1970 1971 if (sc->sc_dying) { 1972 /* If we're dying, just do the software part. */ 1973 s = splusb(); 1974 xfer->status = status; /* make software ignore it */ 1975 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1976 usb_transfer_complete(xfer); 1977 splx(s); 1978 return; 1979 } 1980 1981 if (xfer->device->bus->intr_context || !curproc) 1982 panic("uhci_abort_xfer: not in process context"); 1983 1984 /* 1985 * If an abort is already in progress then just wait for it to 1986 * complete and return. 1987 */ 1988 if (xfer->hcflags & UXFER_ABORTING) { 1989 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1990 #ifdef DIAGNOSTIC 1991 if (status == USBD_TIMEOUT) 1992 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 1993 #endif 1994 /* Override the status which might be USBD_TIMEOUT. */ 1995 xfer->status = status; 1996 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 1997 xfer->hcflags |= UXFER_ABORTWAIT; 1998 while (xfer->hcflags & UXFER_ABORTING) 1999 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 2000 return; 2001 } 2002 xfer->hcflags |= UXFER_ABORTING; 2003 2004 /* 2005 * Step 1: Make interrupt routine and hardware ignore xfer. 2006 */ 2007 s = splusb(); 2008 xfer->status = status; /* make software ignore it */ 2009 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2010 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2011 for (std = ii->stdstart; std != NULL; std = std->link.std) 2012 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2013 splx(s); 2014 2015 /* 2016 * Step 2: Wait until we know hardware has finished any possible 2017 * use of the xfer. Also make sure the soft interrupt routine 2018 * has run. 2019 */ 2020 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2021 s = splusb(); 2022 #ifdef USB_USE_SOFTINTR 2023 sc->sc_softwake = 1; 2024 #endif /* USB_USE_SOFTINTR */ 2025 usb_schedsoftintr(&sc->sc_bus); 2026 #ifdef USB_USE_SOFTINTR 2027 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2028 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2029 #endif /* USB_USE_SOFTINTR */ 2030 splx(s); 2031 2032 /* 2033 * Step 3: Execute callback. 2034 */ 2035 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2036 s = splusb(); 2037 #ifdef DIAGNOSTIC 2038 ii->isdone = 1; 2039 #endif 2040 wake = xfer->hcflags & UXFER_ABORTWAIT; 2041 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2042 usb_transfer_complete(xfer); 2043 if (wake) 2044 wakeup(&xfer->hcflags); 2045 splx(s); 2046 } 2047 2048 /* Close a device bulk pipe. */ 2049 void 2050 uhci_device_bulk_close(usbd_pipe_handle pipe) 2051 { 2052 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2053 usbd_device_handle dev = upipe->pipe.device; 2054 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2055 2056 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2057 } 2058 2059 usbd_status 2060 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2061 { 2062 usbd_status err; 2063 2064 /* Insert last in queue. */ 2065 err = usb_insert_transfer(xfer); 2066 if (err) 2067 return (err); 2068 2069 /* 2070 * Pipe isn't running (otherwise err would be USBD_INPROG), 2071 * so start it first. 2072 */ 2073 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2074 } 2075 2076 usbd_status 2077 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2078 { 2079 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2080 usbd_status err; 2081 2082 if (sc->sc_dying) 2083 return (USBD_IOERROR); 2084 2085 #ifdef DIAGNOSTIC 2086 if (!(xfer->rqflags & URQ_REQUEST)) 2087 panic("uhci_device_ctrl_transfer: not a request"); 2088 #endif 2089 2090 err = uhci_device_request(xfer); 2091 if (err) 2092 return (err); 2093 2094 if (sc->sc_bus.use_polling) 2095 uhci_waitintr(sc, xfer); 2096 return (USBD_IN_PROGRESS); 2097 } 2098 2099 usbd_status 2100 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2101 { 2102 usbd_status err; 2103 2104 /* Insert last in queue. */ 2105 err = usb_insert_transfer(xfer); 2106 if (err) 2107 return (err); 2108 2109 /* 2110 * Pipe isn't running (otherwise err would be USBD_INPROG), 2111 * so start it first. 2112 */ 2113 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2114 } 2115 2116 usbd_status 2117 uhci_device_intr_start(usbd_xfer_handle xfer) 2118 { 2119 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2120 usbd_device_handle dev = upipe->pipe.device; 2121 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2122 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2123 uhci_soft_td_t *data, *dataend; 2124 uhci_soft_qh_t *sqh; 2125 usbd_status err; 2126 int isread, endpt; 2127 int i, s; 2128 2129 if (sc->sc_dying) 2130 return (USBD_IOERROR); 2131 2132 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2133 xfer, xfer->length, xfer->flags)); 2134 2135 #ifdef DIAGNOSTIC 2136 if (xfer->rqflags & URQ_REQUEST) 2137 panic("uhci_device_intr_transfer: a request"); 2138 #endif 2139 2140 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2141 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2142 2143 upipe->u.intr.isread = isread; 2144 2145 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2146 xfer->flags, &xfer->dmabuf, &data, 2147 &dataend); 2148 if (err) 2149 return (err); 2150 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2151 2152 #ifdef UHCI_DEBUG 2153 if (uhcidebug > 10) { 2154 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2155 uhci_dump_tds(data); 2156 uhci_dump_qh(upipe->u.intr.qhs[0]); 2157 } 2158 #endif 2159 2160 s = splusb(); 2161 /* Set up interrupt info. */ 2162 ii->xfer = xfer; 2163 ii->stdstart = data; 2164 ii->stdend = dataend; 2165 #ifdef DIAGNOSTIC 2166 if (!ii->isdone) { 2167 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2168 } 2169 ii->isdone = 0; 2170 #endif 2171 2172 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2173 upipe->u.intr.qhs[0])); 2174 for (i = 0; i < upipe->u.intr.npoll; i++) { 2175 sqh = upipe->u.intr.qhs[i]; 2176 sqh->elink = data; 2177 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2178 } 2179 uhci_add_intr_info(sc, ii); 2180 xfer->status = USBD_IN_PROGRESS; 2181 splx(s); 2182 2183 #ifdef UHCI_DEBUG 2184 if (uhcidebug > 10) { 2185 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2186 uhci_dump_tds(data); 2187 uhci_dump_qh(upipe->u.intr.qhs[0]); 2188 } 2189 #endif 2190 2191 return (USBD_IN_PROGRESS); 2192 } 2193 2194 /* Abort a device control request. */ 2195 void 2196 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2197 { 2198 DPRINTF(("uhci_device_ctrl_abort:\n")); 2199 uhci_abort_xfer(xfer, USBD_CANCELLED); 2200 } 2201 2202 /* Close a device control pipe. */ 2203 void 2204 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2205 { 2206 } 2207 2208 /* Abort a device interrupt request. */ 2209 void 2210 uhci_device_intr_abort(usbd_xfer_handle xfer) 2211 { 2212 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2213 if (xfer->pipe->intrxfer == xfer) { 2214 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2215 xfer->pipe->intrxfer = NULL; 2216 } 2217 uhci_abort_xfer(xfer, USBD_CANCELLED); 2218 } 2219 2220 /* Close a device interrupt pipe. */ 2221 void 2222 uhci_device_intr_close(usbd_pipe_handle pipe) 2223 { 2224 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2225 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2226 int i, npoll; 2227 int s; 2228 2229 /* Unlink descriptors from controller data structures. */ 2230 npoll = upipe->u.intr.npoll; 2231 s = splusb(); 2232 for (i = 0; i < npoll; i++) 2233 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2234 splx(s); 2235 2236 /* 2237 * We now have to wait for any activity on the physical 2238 * descriptors to stop. 2239 */ 2240 usb_delay_ms(&sc->sc_bus, 2); 2241 2242 for(i = 0; i < npoll; i++) 2243 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2244 free(upipe->u.intr.qhs, M_USBHC); 2245 2246 /* XXX free other resources */ 2247 } 2248 2249 usbd_status 2250 uhci_device_request(usbd_xfer_handle xfer) 2251 { 2252 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2253 usb_device_request_t *req = &xfer->request; 2254 usbd_device_handle dev = upipe->pipe.device; 2255 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2256 int addr = dev->address; 2257 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2258 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2259 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2260 uhci_soft_qh_t *sqh; 2261 int len; 2262 u_int32_t ls; 2263 usbd_status err; 2264 int isread; 2265 int s; 2266 2267 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2268 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2269 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2270 UGETW(req->wIndex), UGETW(req->wLength), 2271 addr, endpt)); 2272 2273 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2274 isread = req->bmRequestType & UT_READ; 2275 len = UGETW(req->wLength); 2276 2277 setup = upipe->u.ctl.setup; 2278 stat = upipe->u.ctl.stat; 2279 sqh = upipe->u.ctl.sqh; 2280 2281 /* Set up data transaction */ 2282 if (len != 0) { 2283 upipe->nexttoggle = 1; 2284 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2285 &xfer->dmabuf, &data, &dataend); 2286 if (err) 2287 return (err); 2288 next = data; 2289 dataend->link.std = stat; 2290 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2291 } else { 2292 next = stat; 2293 } 2294 upipe->u.ctl.length = len; 2295 2296 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2297 2298 setup->link.std = next; 2299 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2300 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2301 UHCI_TD_ACTIVE); 2302 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2303 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2304 2305 stat->link.std = NULL; 2306 stat->td.td_link = htole32(UHCI_PTR_T); 2307 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2308 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2309 stat->td.td_token = 2310 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2311 UHCI_TD_IN (0, endpt, addr, 1)); 2312 stat->td.td_buffer = htole32(0); 2313 2314 #ifdef UHCI_DEBUG 2315 if (uhcidebug > 10) { 2316 DPRINTF(("uhci_device_request: before transfer\n")); 2317 uhci_dump_tds(setup); 2318 } 2319 #endif 2320 2321 /* Set up interrupt info. */ 2322 ii->xfer = xfer; 2323 ii->stdstart = setup; 2324 ii->stdend = stat; 2325 #ifdef DIAGNOSTIC 2326 if (!ii->isdone) { 2327 printf("uhci_device_request: not done, ii=%p\n", ii); 2328 } 2329 ii->isdone = 0; 2330 #endif 2331 2332 sqh->elink = setup; 2333 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2334 2335 s = splusb(); 2336 if (dev->speed == USB_SPEED_LOW) 2337 uhci_add_ls_ctrl(sc, sqh); 2338 else 2339 uhci_add_hs_ctrl(sc, sqh); 2340 uhci_add_intr_info(sc, ii); 2341 #ifdef UHCI_DEBUG 2342 if (uhcidebug > 12) { 2343 uhci_soft_td_t *std; 2344 uhci_soft_qh_t *xqh; 2345 uhci_soft_qh_t *sxqh; 2346 int maxqh = 0; 2347 uhci_physaddr_t link; 2348 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2349 for (std = sc->sc_vframes[0].htd, link = 0; 2350 (link & UHCI_PTR_QH) == 0; 2351 std = std->link.std) { 2352 link = le32toh(std->td.td_link); 2353 uhci_dump_td(std); 2354 } 2355 sxqh = (uhci_soft_qh_t *)std; 2356 uhci_dump_qh(sxqh); 2357 for (xqh = sxqh; 2358 xqh != NULL; 2359 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2360 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2361 uhci_dump_qh(xqh); 2362 } 2363 DPRINTF(("Enqueued QH:\n")); 2364 uhci_dump_qh(sqh); 2365 uhci_dump_tds(sqh->elink); 2366 } 2367 #endif 2368 if (xfer->timeout && !sc->sc_bus.use_polling) { 2369 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2370 uhci_timeout, ii); 2371 } 2372 xfer->status = USBD_IN_PROGRESS; 2373 splx(s); 2374 2375 return (USBD_NORMAL_COMPLETION); 2376 } 2377 2378 usbd_status 2379 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2380 { 2381 usbd_status err; 2382 2383 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2384 2385 /* Put it on our queue, */ 2386 err = usb_insert_transfer(xfer); 2387 2388 /* bail out on error, */ 2389 if (err && err != USBD_IN_PROGRESS) 2390 return (err); 2391 2392 /* XXX should check inuse here */ 2393 2394 /* insert into schedule, */ 2395 uhci_device_isoc_enter(xfer); 2396 2397 /* and start if the pipe wasn't running */ 2398 if (!err) 2399 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2400 2401 return (err); 2402 } 2403 2404 void 2405 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2406 { 2407 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2408 usbd_device_handle dev = upipe->pipe.device; 2409 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2410 struct iso *iso = &upipe->u.iso; 2411 uhci_soft_td_t *std; 2412 u_int32_t buf, len, status; 2413 int s, i, next, nframes; 2414 2415 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2416 "nframes=%d\n", 2417 iso->inuse, iso->next, xfer, xfer->nframes)); 2418 2419 if (sc->sc_dying) 2420 return; 2421 2422 if (xfer->status == USBD_IN_PROGRESS) { 2423 /* This request has already been entered into the frame list */ 2424 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2425 /* XXX */ 2426 } 2427 2428 #ifdef DIAGNOSTIC 2429 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2430 printf("uhci_device_isoc_enter: overflow!\n"); 2431 #endif 2432 2433 next = iso->next; 2434 if (next == -1) { 2435 /* Not in use yet, schedule it a few frames ahead. */ 2436 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2437 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2438 } 2439 2440 xfer->status = USBD_IN_PROGRESS; 2441 UXFER(xfer)->curframe = next; 2442 2443 buf = DMAADDR(&xfer->dmabuf, 0); 2444 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2445 UHCI_TD_ACTIVE | 2446 UHCI_TD_IOS); 2447 nframes = xfer->nframes; 2448 s = splusb(); 2449 for (i = 0; i < nframes; i++) { 2450 std = iso->stds[next]; 2451 if (++next >= UHCI_VFRAMELIST_COUNT) 2452 next = 0; 2453 len = xfer->frlengths[i]; 2454 std->td.td_buffer = htole32(buf); 2455 if (i == nframes - 1) 2456 status |= UHCI_TD_IOC; 2457 std->td.td_status = htole32(status); 2458 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2459 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2460 #ifdef UHCI_DEBUG 2461 if (uhcidebug > 5) { 2462 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2463 uhci_dump_td(std); 2464 } 2465 #endif 2466 buf += len; 2467 } 2468 iso->next = next; 2469 iso->inuse += xfer->nframes; 2470 2471 splx(s); 2472 } 2473 2474 usbd_status 2475 uhci_device_isoc_start(usbd_xfer_handle xfer) 2476 { 2477 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2478 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2479 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2480 uhci_soft_td_t *end; 2481 int s, i; 2482 2483 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2484 2485 if (sc->sc_dying) 2486 return (USBD_IOERROR); 2487 2488 #ifdef DIAGNOSTIC 2489 if (xfer->status != USBD_IN_PROGRESS) 2490 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2491 #endif 2492 2493 /* Find the last TD */ 2494 i = UXFER(xfer)->curframe + xfer->nframes; 2495 if (i >= UHCI_VFRAMELIST_COUNT) 2496 i -= UHCI_VFRAMELIST_COUNT; 2497 end = upipe->u.iso.stds[i]; 2498 2499 #ifdef DIAGNOSTIC 2500 if (end == NULL) { 2501 printf("uhci_device_isoc_start: end == NULL\n"); 2502 return (USBD_INVAL); 2503 } 2504 #endif 2505 2506 s = splusb(); 2507 2508 /* Set up interrupt info. */ 2509 ii->xfer = xfer; 2510 ii->stdstart = end; 2511 ii->stdend = end; 2512 #ifdef DIAGNOSTIC 2513 if (!ii->isdone) 2514 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2515 ii->isdone = 0; 2516 #endif 2517 uhci_add_intr_info(sc, ii); 2518 2519 splx(s); 2520 2521 return (USBD_IN_PROGRESS); 2522 } 2523 2524 void 2525 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2526 { 2527 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2528 uhci_soft_td_t **stds = upipe->u.iso.stds; 2529 uhci_soft_td_t *std; 2530 int i, n, s, nframes, maxlen, len; 2531 2532 s = splusb(); 2533 2534 /* Transfer is already done. */ 2535 if (xfer->status != USBD_NOT_STARTED && 2536 xfer->status != USBD_IN_PROGRESS) { 2537 splx(s); 2538 return; 2539 } 2540 2541 /* Give xfer the requested abort code. */ 2542 xfer->status = USBD_CANCELLED; 2543 2544 /* make hardware ignore it, */ 2545 nframes = xfer->nframes; 2546 n = UXFER(xfer)->curframe; 2547 maxlen = 0; 2548 for (i = 0; i < nframes; i++) { 2549 std = stds[n]; 2550 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2551 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2552 if (len > maxlen) 2553 maxlen = len; 2554 if (++n >= UHCI_VFRAMELIST_COUNT) 2555 n = 0; 2556 } 2557 2558 /* and wait until we are sure the hardware has finished. */ 2559 delay(maxlen); 2560 2561 #ifdef DIAGNOSTIC 2562 UXFER(xfer)->iinfo.isdone = 1; 2563 #endif 2564 /* Run callback and remove from interrupt list. */ 2565 usb_transfer_complete(xfer); 2566 2567 splx(s); 2568 } 2569 2570 void 2571 uhci_device_isoc_close(usbd_pipe_handle pipe) 2572 { 2573 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2574 usbd_device_handle dev = upipe->pipe.device; 2575 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2576 uhci_soft_td_t *std, *vstd; 2577 struct iso *iso; 2578 int i, s; 2579 2580 /* 2581 * Make sure all TDs are marked as inactive. 2582 * Wait for completion. 2583 * Unschedule. 2584 * Deallocate. 2585 */ 2586 iso = &upipe->u.iso; 2587 2588 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2589 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2590 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2591 2592 s = splusb(); 2593 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2594 std = iso->stds[i]; 2595 for (vstd = sc->sc_vframes[i].htd; 2596 vstd != NULL && vstd->link.std != std; 2597 vstd = vstd->link.std) 2598 ; 2599 if (vstd == NULL) { 2600 /*panic*/ 2601 printf("uhci_device_isoc_close: %p not found\n", std); 2602 splx(s); 2603 return; 2604 } 2605 vstd->link = std->link; 2606 vstd->td.td_link = std->td.td_link; 2607 uhci_free_std(sc, std); 2608 } 2609 splx(s); 2610 2611 free(iso->stds, M_USBHC); 2612 } 2613 2614 usbd_status 2615 uhci_setup_isoc(usbd_pipe_handle pipe) 2616 { 2617 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2618 usbd_device_handle dev = upipe->pipe.device; 2619 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2620 int addr = upipe->pipe.device->address; 2621 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2622 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2623 uhci_soft_td_t *std, *vstd; 2624 u_int32_t token; 2625 struct iso *iso; 2626 int i, s; 2627 2628 iso = &upipe->u.iso; 2629 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2630 M_USBHC, M_WAITOK); 2631 2632 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2633 UHCI_TD_OUT(0, endpt, addr, 0); 2634 2635 /* Allocate the TDs and mark as inactive; */ 2636 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2637 std = uhci_alloc_std(sc); 2638 if (std == 0) 2639 goto bad; 2640 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2641 std->td.td_token = htole32(token); 2642 iso->stds[i] = std; 2643 } 2644 2645 /* Insert TDs into schedule. */ 2646 s = splusb(); 2647 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2648 std = iso->stds[i]; 2649 vstd = sc->sc_vframes[i].htd; 2650 std->link = vstd->link; 2651 std->td.td_link = vstd->td.td_link; 2652 vstd->link.std = std; 2653 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2654 } 2655 splx(s); 2656 2657 iso->next = -1; 2658 iso->inuse = 0; 2659 2660 return (USBD_NORMAL_COMPLETION); 2661 2662 bad: 2663 while (--i >= 0) 2664 uhci_free_std(sc, iso->stds[i]); 2665 free(iso->stds, M_USBHC); 2666 return (USBD_NOMEM); 2667 } 2668 2669 void 2670 uhci_device_isoc_done(usbd_xfer_handle xfer) 2671 { 2672 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2673 2674 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2675 xfer->actlen, xfer->busy_free)); 2676 2677 if (ii->xfer != xfer) 2678 /* Not on interrupt list, ignore it. */ 2679 return; 2680 2681 if (!uhci_active_intr_info(ii)) 2682 return; 2683 2684 #ifdef DIAGNOSTIC 2685 if (ii->stdend == NULL) { 2686 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2687 #ifdef UHCI_DEBUG 2688 uhci_dump_ii(ii); 2689 #endif 2690 return; 2691 } 2692 #endif 2693 2694 /* Turn off the interrupt since it is active even if the TD is not. */ 2695 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2696 2697 uhci_del_intr_info(ii); /* remove from active list */ 2698 } 2699 2700 void 2701 uhci_device_intr_done(usbd_xfer_handle xfer) 2702 { 2703 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2704 uhci_softc_t *sc = ii->sc; 2705 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2706 uhci_soft_qh_t *sqh; 2707 int i, npoll; 2708 2709 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2710 2711 npoll = upipe->u.intr.npoll; 2712 for(i = 0; i < npoll; i++) { 2713 sqh = upipe->u.intr.qhs[i]; 2714 sqh->elink = NULL; 2715 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2716 } 2717 uhci_free_std_chain(sc, ii->stdstart, NULL); 2718 2719 /* XXX Wasteful. */ 2720 if (xfer->pipe->repeat) { 2721 uhci_soft_td_t *data, *dataend; 2722 2723 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2724 2725 /* This alloc cannot fail since we freed the chain above. */ 2726 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2727 &xfer->dmabuf, &data, &dataend); 2728 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2729 2730 #ifdef UHCI_DEBUG 2731 if (uhcidebug > 10) { 2732 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2733 uhci_dump_tds(data); 2734 uhci_dump_qh(upipe->u.intr.qhs[0]); 2735 } 2736 #endif 2737 2738 ii->stdstart = data; 2739 ii->stdend = dataend; 2740 #ifdef DIAGNOSTIC 2741 if (!ii->isdone) { 2742 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2743 } 2744 ii->isdone = 0; 2745 #endif 2746 for (i = 0; i < npoll; i++) { 2747 sqh = upipe->u.intr.qhs[i]; 2748 sqh->elink = data; 2749 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2750 } 2751 xfer->status = USBD_IN_PROGRESS; 2752 /* The ii is already on the examined list, just leave it. */ 2753 } else { 2754 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2755 if (uhci_active_intr_info(ii)) 2756 uhci_del_intr_info(ii); 2757 } 2758 } 2759 2760 /* Deallocate request data structures */ 2761 void 2762 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2763 { 2764 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2765 uhci_softc_t *sc = ii->sc; 2766 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2767 2768 #ifdef DIAGNOSTIC 2769 if (!(xfer->rqflags & URQ_REQUEST)) 2770 panic("uhci_device_ctrl_done: not a request"); 2771 #endif 2772 2773 if (!uhci_active_intr_info(ii)) 2774 return; 2775 2776 uhci_del_intr_info(ii); /* remove from active list */ 2777 2778 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2779 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2780 else 2781 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2782 2783 if (upipe->u.ctl.length != 0) 2784 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2785 2786 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2787 } 2788 2789 /* Deallocate request data structures */ 2790 void 2791 uhci_device_bulk_done(usbd_xfer_handle xfer) 2792 { 2793 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2794 uhci_softc_t *sc = ii->sc; 2795 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2796 2797 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2798 xfer, ii, sc, upipe)); 2799 2800 if (!uhci_active_intr_info(ii)) 2801 return; 2802 2803 uhci_del_intr_info(ii); /* remove from active list */ 2804 2805 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2806 2807 uhci_free_std_chain(sc, ii->stdstart, NULL); 2808 2809 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2810 } 2811 2812 /* Add interrupt QH, called with vflock. */ 2813 void 2814 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2815 { 2816 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2817 uhci_soft_qh_t *eqh; 2818 2819 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2820 2821 eqh = vf->eqh; 2822 sqh->hlink = eqh->hlink; 2823 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2824 eqh->hlink = sqh; 2825 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2826 vf->eqh = sqh; 2827 vf->bandwidth++; 2828 } 2829 2830 /* Remove interrupt QH. */ 2831 void 2832 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2833 { 2834 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2835 uhci_soft_qh_t *pqh; 2836 2837 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2838 2839 /* See comment in uhci_remove_ctrl() */ 2840 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2841 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2842 delay(UHCI_QH_REMOVE_DELAY); 2843 } 2844 2845 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2846 pqh->hlink = sqh->hlink; 2847 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2848 delay(UHCI_QH_REMOVE_DELAY); 2849 if (vf->eqh == sqh) 2850 vf->eqh = pqh; 2851 vf->bandwidth--; 2852 } 2853 2854 usbd_status 2855 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2856 { 2857 uhci_soft_qh_t *sqh; 2858 int i, npoll, s; 2859 u_int bestbw, bw, bestoffs, offs; 2860 2861 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2862 if (ival == 0) { 2863 printf("uhci_device_setintr: 0 interval\n"); 2864 return (USBD_INVAL); 2865 } 2866 2867 if (ival > UHCI_VFRAMELIST_COUNT) 2868 ival = UHCI_VFRAMELIST_COUNT; 2869 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2870 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2871 2872 upipe->u.intr.npoll = npoll; 2873 upipe->u.intr.qhs = 2874 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2875 2876 /* 2877 * Figure out which offset in the schedule that has most 2878 * bandwidth left over. 2879 */ 2880 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2881 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2882 for (bw = i = 0; i < npoll; i++) 2883 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2884 if (bw < bestbw) { 2885 bestbw = bw; 2886 bestoffs = offs; 2887 } 2888 } 2889 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2890 2891 for(i = 0; i < npoll; i++) { 2892 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2893 sqh->elink = NULL; 2894 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2895 sqh->pos = MOD(i * ival + bestoffs); 2896 } 2897 #undef MOD 2898 2899 s = splusb(); 2900 /* Enter QHs into the controller data structures. */ 2901 for(i = 0; i < npoll; i++) 2902 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2903 splx(s); 2904 2905 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2906 return (USBD_NORMAL_COMPLETION); 2907 } 2908 2909 /* Open a new pipe. */ 2910 usbd_status 2911 uhci_open(usbd_pipe_handle pipe) 2912 { 2913 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2914 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2915 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2916 usbd_status err; 2917 int ival; 2918 2919 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2920 pipe, pipe->device->address, 2921 ed->bEndpointAddress, sc->sc_addr)); 2922 2923 upipe->aborting = 0; 2924 upipe->nexttoggle = 0; 2925 2926 if (pipe->device->address == sc->sc_addr) { 2927 switch (ed->bEndpointAddress) { 2928 case USB_CONTROL_ENDPOINT: 2929 pipe->methods = &uhci_root_ctrl_methods; 2930 break; 2931 case UE_DIR_IN | UHCI_INTR_ENDPT: 2932 pipe->methods = &uhci_root_intr_methods; 2933 break; 2934 default: 2935 return (USBD_INVAL); 2936 } 2937 } else { 2938 switch (ed->bmAttributes & UE_XFERTYPE) { 2939 case UE_CONTROL: 2940 pipe->methods = &uhci_device_ctrl_methods; 2941 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2942 if (upipe->u.ctl.sqh == NULL) 2943 goto bad; 2944 upipe->u.ctl.setup = uhci_alloc_std(sc); 2945 if (upipe->u.ctl.setup == NULL) { 2946 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2947 goto bad; 2948 } 2949 upipe->u.ctl.stat = uhci_alloc_std(sc); 2950 if (upipe->u.ctl.stat == NULL) { 2951 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2952 uhci_free_std(sc, upipe->u.ctl.setup); 2953 goto bad; 2954 } 2955 err = usb_allocmem(&sc->sc_bus, 2956 sizeof(usb_device_request_t), 2957 0, &upipe->u.ctl.reqdma); 2958 if (err) { 2959 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2960 uhci_free_std(sc, upipe->u.ctl.setup); 2961 uhci_free_std(sc, upipe->u.ctl.stat); 2962 goto bad; 2963 } 2964 break; 2965 case UE_INTERRUPT: 2966 pipe->methods = &uhci_device_intr_methods; 2967 ival = pipe->interval; 2968 if (ival == USBD_DEFAULT_INTERVAL) 2969 ival = ed->bInterval; 2970 return (uhci_device_setintr(sc, upipe, ival)); 2971 case UE_ISOCHRONOUS: 2972 pipe->methods = &uhci_device_isoc_methods; 2973 return (uhci_setup_isoc(pipe)); 2974 case UE_BULK: 2975 pipe->methods = &uhci_device_bulk_methods; 2976 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2977 if (upipe->u.bulk.sqh == NULL) 2978 goto bad; 2979 break; 2980 } 2981 } 2982 return (USBD_NORMAL_COMPLETION); 2983 2984 bad: 2985 return (USBD_NOMEM); 2986 } 2987 2988 /* 2989 * Data structures and routines to emulate the root hub. 2990 */ 2991 usb_device_descriptor_t uhci_devd = { 2992 USB_DEVICE_DESCRIPTOR_SIZE, 2993 UDESC_DEVICE, /* type */ 2994 {0x00, 0x01}, /* USB version */ 2995 UDCLASS_HUB, /* class */ 2996 UDSUBCLASS_HUB, /* subclass */ 2997 UDPROTO_FSHUB, /* protocol */ 2998 64, /* max packet */ 2999 {0},{0},{0x00,0x01}, /* device id */ 3000 1,2,0, /* string indicies */ 3001 1 /* # of configurations */ 3002 }; 3003 3004 const usb_config_descriptor_t uhci_confd = { 3005 USB_CONFIG_DESCRIPTOR_SIZE, 3006 UDESC_CONFIG, 3007 {USB_CONFIG_DESCRIPTOR_SIZE + 3008 USB_INTERFACE_DESCRIPTOR_SIZE + 3009 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3010 1, 3011 1, 3012 0, 3013 UC_ATTR_MBO | UC_SELF_POWERED, 3014 0 /* max power */ 3015 }; 3016 3017 const usb_interface_descriptor_t uhci_ifcd = { 3018 USB_INTERFACE_DESCRIPTOR_SIZE, 3019 UDESC_INTERFACE, 3020 0, 3021 0, 3022 1, 3023 UICLASS_HUB, 3024 UISUBCLASS_HUB, 3025 UIPROTO_FSHUB, 3026 0 3027 }; 3028 3029 const usb_endpoint_descriptor_t uhci_endpd = { 3030 USB_ENDPOINT_DESCRIPTOR_SIZE, 3031 UDESC_ENDPOINT, 3032 UE_DIR_IN | UHCI_INTR_ENDPT, 3033 UE_INTERRUPT, 3034 {8}, 3035 255 3036 }; 3037 3038 const usb_hub_descriptor_t uhci_hubd_piix = { 3039 USB_HUB_DESCRIPTOR_SIZE, 3040 UDESC_HUB, 3041 2, 3042 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3043 50, /* power on to power good */ 3044 0, 3045 { 0x00 }, /* both ports are removable */ 3046 { 0 }, 3047 }; 3048 3049 int 3050 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3051 { 3052 int i; 3053 3054 if (l == 0) 3055 return (0); 3056 p->bLength = 2 * strlen(s) + 2; 3057 if (l == 1) 3058 return (1); 3059 p->bDescriptorType = UDESC_STRING; 3060 l -= 2; 3061 for (i = 0; s[i] && l > 1; i++, l -= 2) 3062 USETW2(p->bString[i], 0, s[i]); 3063 return (2*i+2); 3064 } 3065 3066 /* 3067 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3068 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3069 * should not be used by the USB subsystem. As we cannot issue a 3070 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3071 * will be enabled as part of the reset. 3072 * 3073 * On the VT83C572, the port cannot be successfully enabled until the 3074 * outstanding "port enable change" and "connection status change" 3075 * events have been reset. 3076 */ 3077 Static usbd_status 3078 uhci_portreset(uhci_softc_t *sc, int index) 3079 { 3080 int lim, port, x; 3081 3082 if (index == 1) 3083 port = UHCI_PORTSC1; 3084 else if (index == 2) 3085 port = UHCI_PORTSC2; 3086 else 3087 return (USBD_IOERROR); 3088 3089 x = URWMASK(UREAD2(sc, port)); 3090 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3091 3092 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3093 3094 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3095 index, UREAD2(sc, port))); 3096 3097 x = URWMASK(UREAD2(sc, port)); 3098 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3099 3100 delay(100); 3101 3102 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3103 index, UREAD2(sc, port))); 3104 3105 x = URWMASK(UREAD2(sc, port)); 3106 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3107 3108 for (lim = 10; --lim > 0;) { 3109 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3110 3111 x = UREAD2(sc, port); 3112 3113 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3114 index, lim, x)); 3115 3116 if (!(x & UHCI_PORTSC_CCS)) { 3117 /* 3118 * No device is connected (or was disconnected 3119 * during reset). Consider the port reset. 3120 * The delay must be long enough to ensure on 3121 * the initial iteration that the device 3122 * connection will have been registered. 50ms 3123 * appears to be sufficient, but 20ms is not. 3124 */ 3125 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3126 index, lim)); 3127 break; 3128 } 3129 3130 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3131 /* 3132 * Port enabled changed and/or connection 3133 * status changed were set. Reset either or 3134 * both raised flags (by writing a 1 to that 3135 * bit), and wait again for state to settle. 3136 */ 3137 UWRITE2(sc, port, URWMASK(x) | 3138 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3139 continue; 3140 } 3141 3142 if (x & UHCI_PORTSC_PE) 3143 /* Port is enabled */ 3144 break; 3145 3146 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3147 } 3148 3149 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3150 index, UREAD2(sc, port))); 3151 3152 if (lim <= 0) { 3153 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3154 return (USBD_TIMEOUT); 3155 } 3156 3157 sc->sc_isreset = 1; 3158 return (USBD_NORMAL_COMPLETION); 3159 } 3160 3161 /* 3162 * Simulate a hardware hub by handling all the necessary requests. 3163 */ 3164 usbd_status 3165 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3166 { 3167 usbd_status err; 3168 3169 /* Insert last in queue. */ 3170 err = usb_insert_transfer(xfer); 3171 if (err) 3172 return (err); 3173 3174 /* 3175 * Pipe isn't running (otherwise err would be USBD_INPROG), 3176 * so start it first. 3177 */ 3178 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3179 } 3180 3181 usbd_status 3182 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3183 { 3184 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3185 usb_device_request_t *req; 3186 void *buf = NULL; 3187 int port, x; 3188 int s, len, value, index, status, change, l, totlen = 0; 3189 usb_port_status_t ps; 3190 usbd_status err; 3191 3192 if (sc->sc_dying) 3193 return (USBD_IOERROR); 3194 3195 #ifdef DIAGNOSTIC 3196 if (!(xfer->rqflags & URQ_REQUEST)) 3197 panic("uhci_root_ctrl_transfer: not a request"); 3198 #endif 3199 req = &xfer->request; 3200 3201 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3202 req->bmRequestType, req->bRequest)); 3203 3204 len = UGETW(req->wLength); 3205 value = UGETW(req->wValue); 3206 index = UGETW(req->wIndex); 3207 3208 if (len != 0) 3209 buf = KERNADDR(&xfer->dmabuf, 0); 3210 3211 #define C(x,y) ((x) | ((y) << 8)) 3212 switch(C(req->bRequest, req->bmRequestType)) { 3213 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3214 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3215 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3216 /* 3217 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3218 * for the integrated root hub. 3219 */ 3220 break; 3221 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3222 if (len > 0) { 3223 *(u_int8_t *)buf = sc->sc_conf; 3224 totlen = 1; 3225 } 3226 break; 3227 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3228 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3229 if (len == 0) 3230 break; 3231 switch(value >> 8) { 3232 case UDESC_DEVICE: 3233 if ((value & 0xff) != 0) { 3234 err = USBD_IOERROR; 3235 goto ret; 3236 } 3237 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3238 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3239 memcpy(buf, &uhci_devd, l); 3240 break; 3241 case UDESC_CONFIG: 3242 if ((value & 0xff) != 0) { 3243 err = USBD_IOERROR; 3244 goto ret; 3245 } 3246 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3247 memcpy(buf, &uhci_confd, l); 3248 buf = (char *)buf + l; 3249 len -= l; 3250 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3251 totlen += l; 3252 memcpy(buf, &uhci_ifcd, l); 3253 buf = (char *)buf + l; 3254 len -= l; 3255 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3256 totlen += l; 3257 memcpy(buf, &uhci_endpd, l); 3258 break; 3259 case UDESC_STRING: 3260 *(u_int8_t *)buf = 0; 3261 totlen = 1; 3262 switch (value & 0xff) { 3263 case 0: /* Language table */ 3264 if (len > 0) 3265 *(u_int8_t *)buf = 4; 3266 if (len >= 4) { 3267 USETW(((usb_string_descriptor_t *)buf)->bString[0], 0x0409); 3268 totlen = 4; 3269 } 3270 break; 3271 case 1: /* Vendor */ 3272 totlen = uhci_str(buf, len, sc->sc_vendor); 3273 break; 3274 case 2: /* Product */ 3275 totlen = uhci_str(buf, len, "UHCI root hub"); 3276 break; 3277 } 3278 break; 3279 default: 3280 err = USBD_IOERROR; 3281 goto ret; 3282 } 3283 break; 3284 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3285 if (len > 0) { 3286 *(u_int8_t *)buf = 0; 3287 totlen = 1; 3288 } 3289 break; 3290 case C(UR_GET_STATUS, UT_READ_DEVICE): 3291 if (len > 1) { 3292 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3293 totlen = 2; 3294 } 3295 break; 3296 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3297 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3298 if (len > 1) { 3299 USETW(((usb_status_t *)buf)->wStatus, 0); 3300 totlen = 2; 3301 } 3302 break; 3303 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3304 if (value >= USB_MAX_DEVICES) { 3305 err = USBD_IOERROR; 3306 goto ret; 3307 } 3308 sc->sc_addr = value; 3309 break; 3310 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3311 if (value != 0 && value != 1) { 3312 err = USBD_IOERROR; 3313 goto ret; 3314 } 3315 sc->sc_conf = value; 3316 break; 3317 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3318 break; 3319 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3320 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3321 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3322 err = USBD_IOERROR; 3323 goto ret; 3324 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3325 break; 3326 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3327 break; 3328 /* Hub requests */ 3329 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3330 break; 3331 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3332 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3333 "port=%d feature=%d\n", 3334 index, value)); 3335 if (index == 1) 3336 port = UHCI_PORTSC1; 3337 else if (index == 2) 3338 port = UHCI_PORTSC2; 3339 else { 3340 err = USBD_IOERROR; 3341 goto ret; 3342 } 3343 switch(value) { 3344 case UHF_PORT_ENABLE: 3345 x = URWMASK(UREAD2(sc, port)); 3346 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3347 break; 3348 case UHF_PORT_SUSPEND: 3349 x = URWMASK(UREAD2(sc, port)); 3350 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3351 break; 3352 case UHF_PORT_RESET: 3353 x = URWMASK(UREAD2(sc, port)); 3354 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3355 break; 3356 case UHF_C_PORT_CONNECTION: 3357 x = URWMASK(UREAD2(sc, port)); 3358 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3359 break; 3360 case UHF_C_PORT_ENABLE: 3361 x = URWMASK(UREAD2(sc, port)); 3362 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3363 break; 3364 case UHF_C_PORT_OVER_CURRENT: 3365 x = URWMASK(UREAD2(sc, port)); 3366 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3367 break; 3368 case UHF_C_PORT_RESET: 3369 sc->sc_isreset = 0; 3370 err = USBD_NORMAL_COMPLETION; 3371 goto ret; 3372 case UHF_PORT_CONNECTION: 3373 case UHF_PORT_OVER_CURRENT: 3374 case UHF_PORT_POWER: 3375 case UHF_PORT_LOW_SPEED: 3376 case UHF_C_PORT_SUSPEND: 3377 default: 3378 err = USBD_IOERROR; 3379 goto ret; 3380 } 3381 break; 3382 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3383 if (index == 1) 3384 port = UHCI_PORTSC1; 3385 else if (index == 2) 3386 port = UHCI_PORTSC2; 3387 else { 3388 err = USBD_IOERROR; 3389 goto ret; 3390 } 3391 if (len > 0) { 3392 *(u_int8_t *)buf = 3393 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3394 UHCI_PORTSC_LS_SHIFT; 3395 totlen = 1; 3396 } 3397 break; 3398 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3399 if (len == 0) 3400 break; 3401 if ((value & 0xff) != 0) { 3402 err = USBD_IOERROR; 3403 goto ret; 3404 } 3405 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3406 totlen = l; 3407 memcpy(buf, &uhci_hubd_piix, l); 3408 break; 3409 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3410 if (len != 4) { 3411 err = USBD_IOERROR; 3412 goto ret; 3413 } 3414 memset(buf, 0, len); 3415 totlen = len; 3416 break; 3417 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3418 if (index == 1) 3419 port = UHCI_PORTSC1; 3420 else if (index == 2) 3421 port = UHCI_PORTSC2; 3422 else { 3423 err = USBD_IOERROR; 3424 goto ret; 3425 } 3426 if (len != 4) { 3427 err = USBD_IOERROR; 3428 goto ret; 3429 } 3430 x = UREAD2(sc, port); 3431 status = change = 0; 3432 if (x & UHCI_PORTSC_CCS) 3433 status |= UPS_CURRENT_CONNECT_STATUS; 3434 if (x & UHCI_PORTSC_CSC) 3435 change |= UPS_C_CONNECT_STATUS; 3436 if (x & UHCI_PORTSC_PE) 3437 status |= UPS_PORT_ENABLED; 3438 if (x & UHCI_PORTSC_POEDC) 3439 change |= UPS_C_PORT_ENABLED; 3440 if (x & UHCI_PORTSC_OCI) 3441 status |= UPS_OVERCURRENT_INDICATOR; 3442 if (x & UHCI_PORTSC_OCIC) 3443 change |= UPS_C_OVERCURRENT_INDICATOR; 3444 if (x & UHCI_PORTSC_SUSP) 3445 status |= UPS_SUSPEND; 3446 if (x & UHCI_PORTSC_LSDA) 3447 status |= UPS_LOW_SPEED; 3448 status |= UPS_PORT_POWER; 3449 if (sc->sc_isreset) 3450 change |= UPS_C_PORT_RESET; 3451 USETW(ps.wPortStatus, status); 3452 USETW(ps.wPortChange, change); 3453 l = min(len, sizeof ps); 3454 memcpy(buf, &ps, l); 3455 totlen = l; 3456 break; 3457 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3458 err = USBD_IOERROR; 3459 goto ret; 3460 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3461 break; 3462 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3463 if (index == 1) 3464 port = UHCI_PORTSC1; 3465 else if (index == 2) 3466 port = UHCI_PORTSC2; 3467 else { 3468 err = USBD_IOERROR; 3469 goto ret; 3470 } 3471 switch(value) { 3472 case UHF_PORT_ENABLE: 3473 x = URWMASK(UREAD2(sc, port)); 3474 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3475 break; 3476 case UHF_PORT_SUSPEND: 3477 x = URWMASK(UREAD2(sc, port)); 3478 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3479 break; 3480 case UHF_PORT_RESET: 3481 err = uhci_portreset(sc, index); 3482 goto ret; 3483 case UHF_PORT_POWER: 3484 /* Pretend we turned on power */ 3485 err = USBD_NORMAL_COMPLETION; 3486 goto ret; 3487 case UHF_C_PORT_CONNECTION: 3488 case UHF_C_PORT_ENABLE: 3489 case UHF_C_PORT_OVER_CURRENT: 3490 case UHF_PORT_CONNECTION: 3491 case UHF_PORT_OVER_CURRENT: 3492 case UHF_PORT_LOW_SPEED: 3493 case UHF_C_PORT_SUSPEND: 3494 case UHF_C_PORT_RESET: 3495 default: 3496 err = USBD_IOERROR; 3497 goto ret; 3498 } 3499 break; 3500 default: 3501 err = USBD_IOERROR; 3502 goto ret; 3503 } 3504 xfer->actlen = totlen; 3505 err = USBD_NORMAL_COMPLETION; 3506 ret: 3507 xfer->status = err; 3508 s = splusb(); 3509 usb_transfer_complete(xfer); 3510 splx(s); 3511 return (USBD_IN_PROGRESS); 3512 } 3513 3514 /* Abort a root control request. */ 3515 void 3516 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3517 { 3518 /* Nothing to do, all transfers are synchronous. */ 3519 } 3520 3521 /* Close the root pipe. */ 3522 void 3523 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3524 { 3525 DPRINTF(("uhci_root_ctrl_close\n")); 3526 } 3527 3528 /* Abort a root interrupt request. */ 3529 void 3530 uhci_root_intr_abort(usbd_xfer_handle xfer) 3531 { 3532 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3533 3534 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3535 sc->sc_intr_xfer = NULL; 3536 3537 if (xfer->pipe->intrxfer == xfer) { 3538 DPRINTF(("uhci_root_intr_abort: remove\n")); 3539 xfer->pipe->intrxfer = 0; 3540 } 3541 xfer->status = USBD_CANCELLED; 3542 #ifdef DIAGNOSTIC 3543 UXFER(xfer)->iinfo.isdone = 1; 3544 #endif 3545 usb_transfer_complete(xfer); 3546 } 3547 3548 usbd_status 3549 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3550 { 3551 usbd_status err; 3552 3553 /* Insert last in queue. */ 3554 err = usb_insert_transfer(xfer); 3555 if (err) 3556 return (err); 3557 3558 /* 3559 * Pipe isn't running (otherwise err would be USBD_INPROG), 3560 * start first 3561 */ 3562 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3563 } 3564 3565 /* Start a transfer on the root interrupt pipe */ 3566 usbd_status 3567 uhci_root_intr_start(usbd_xfer_handle xfer) 3568 { 3569 usbd_pipe_handle pipe = xfer->pipe; 3570 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3571 unsigned int ival; 3572 3573 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3574 xfer, xfer->length, xfer->flags)); 3575 3576 if (sc->sc_dying) 3577 return (USBD_IOERROR); 3578 3579 /* XXX temporary variable needed to avoid gcc3 warning */ 3580 ival = xfer->pipe->endpoint->edesc->bInterval; 3581 sc->sc_ival = mstohz(ival); 3582 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3583 sc->sc_intr_xfer = xfer; 3584 return (USBD_IN_PROGRESS); 3585 } 3586 3587 /* Close the root interrupt pipe. */ 3588 void 3589 uhci_root_intr_close(usbd_pipe_handle pipe) 3590 { 3591 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3592 3593 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3594 sc->sc_intr_xfer = NULL; 3595 DPRINTF(("uhci_root_intr_close\n")); 3596 } 3597
Indexes created Tue Sep 30 20:09:53 GMT 2025