uhci.c revision 1.214.6.1
1 /* $NetBSD: uhci.c,v 1.214.6.1 2008/04/03 12:42:57 mjf 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 1.214.6.1 2008/04/03 12:42:57 mjf 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 <sys/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 #include <sys/bus.h> 74 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 #include <dev/usb/usbroothub_subr.h> 86 87 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 88 /*#define UHCI_CTL_LOOP */ 89 90 #if defined(__FreeBSD__) 91 #include <machine/clock.h> 92 93 #define delay(d) DELAY(d) 94 #endif 95 96 #if defined(__OpenBSD__) 97 struct cfdriver uhci_cd = { 98 NULL, "uhci", DV_DULL 99 }; 100 #endif 101 102 #ifdef UHCI_DEBUG 103 uhci_softc_t *thesc; 104 #define DPRINTF(x) if (uhcidebug) printf x 105 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 106 int uhcidebug = 0; 107 int uhcinoloop = 0; 108 #ifndef __NetBSD__ 109 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 110 #endif 111 #else 112 #define DPRINTF(x) 113 #define DPRINTFN(n,x) 114 #endif 115 116 /* 117 * The UHCI controller is little endian, so on big endian machines 118 * the data stored in memory needs to be swapped. 119 */ 120 #if defined(__FreeBSD__) || defined(__OpenBSD__) 121 #if BYTE_ORDER == BIG_ENDIAN 122 #define htole32(x) (bswap32(x)) 123 #define le32toh(x) (bswap32(x)) 124 #else 125 #define htole32(x) (x) 126 #define le32toh(x) (x) 127 #endif 128 #endif 129 130 struct uhci_pipe { 131 struct usbd_pipe pipe; 132 int nexttoggle; 133 134 u_char aborting; 135 usbd_xfer_handle abortstart, abortend; 136 137 /* Info needed for different pipe kinds. */ 138 union { 139 /* Control pipe */ 140 struct { 141 uhci_soft_qh_t *sqh; 142 usb_dma_t reqdma; 143 uhci_soft_td_t *setup, *stat; 144 u_int length; 145 } ctl; 146 /* Interrupt pipe */ 147 struct { 148 int npoll; 149 int isread; 150 uhci_soft_qh_t **qhs; 151 } intr; 152 /* Bulk pipe */ 153 struct { 154 uhci_soft_qh_t *sqh; 155 u_int length; 156 int isread; 157 } bulk; 158 /* Iso pipe */ 159 struct iso { 160 uhci_soft_td_t **stds; 161 int next, inuse; 162 } iso; 163 } u; 164 }; 165 166 Static void uhci_globalreset(uhci_softc_t *); 167 Static usbd_status uhci_portreset(uhci_softc_t*, int); 168 Static void uhci_reset(uhci_softc_t *); 169 Static usbd_status uhci_run(uhci_softc_t *, int 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 void uhci_add_loop(uhci_softc_t *sc); 201 Static void uhci_rem_loop(uhci_softc_t *sc); 202 203 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 204 Static void uhci_device_isoc_enter(usbd_xfer_handle); 205 206 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 207 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 208 209 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 210 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 211 212 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 213 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 214 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 215 Static void uhci_device_ctrl_close(usbd_pipe_handle); 216 Static void uhci_device_ctrl_done(usbd_xfer_handle); 217 218 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 219 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 220 Static void uhci_device_intr_abort(usbd_xfer_handle); 221 Static void uhci_device_intr_close(usbd_pipe_handle); 222 Static void uhci_device_intr_done(usbd_xfer_handle); 223 224 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 225 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 226 Static void uhci_device_bulk_abort(usbd_xfer_handle); 227 Static void uhci_device_bulk_close(usbd_pipe_handle); 228 Static void uhci_device_bulk_done(usbd_xfer_handle); 229 230 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 231 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 232 Static void uhci_device_isoc_abort(usbd_xfer_handle); 233 Static void uhci_device_isoc_close(usbd_pipe_handle); 234 Static void uhci_device_isoc_done(usbd_xfer_handle); 235 236 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 237 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 238 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 239 Static void uhci_root_ctrl_close(usbd_pipe_handle); 240 Static void uhci_root_ctrl_done(usbd_xfer_handle); 241 242 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 243 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 244 Static void uhci_root_intr_abort(usbd_xfer_handle); 245 Static void uhci_root_intr_close(usbd_pipe_handle); 246 Static void uhci_root_intr_done(usbd_xfer_handle); 247 248 Static usbd_status uhci_open(usbd_pipe_handle); 249 Static void uhci_poll(struct usbd_bus *); 250 Static void uhci_softintr(void *); 251 252 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 253 254 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 255 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 257 struct uhci_pipe *pipe, int ival); 258 259 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 260 Static void uhci_noop(usbd_pipe_handle pipe); 261 262 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 263 uhci_soft_qh_t *); 264 265 #ifdef UHCI_DEBUG 266 Static void uhci_dump_all(uhci_softc_t *); 267 Static void uhci_dumpregs(uhci_softc_t *); 268 Static void uhci_dump_qhs(uhci_soft_qh_t *); 269 Static void uhci_dump_qh(uhci_soft_qh_t *); 270 Static void uhci_dump_tds(uhci_soft_td_t *); 271 Static void uhci_dump_td(uhci_soft_td_t *); 272 Static void uhci_dump_ii(uhci_intr_info_t *ii); 273 void uhci_dump(void); 274 #endif 275 276 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 277 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 278 #define UWRITE1(sc, r, x) \ 279 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 280 } while (/*CONSTCOND*/0) 281 #define UWRITE2(sc, r, x) \ 282 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 283 } while (/*CONSTCOND*/0) 284 #define UWRITE4(sc, r, x) \ 285 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 286 } while (/*CONSTCOND*/0) 287 static __inline uint8_t 288 UREAD1(uhci_softc_t *sc, bus_size_t r) 289 { 290 291 UBARR(sc); 292 return bus_space_read_1(sc->iot, sc->ioh, r); 293 } 294 295 static __inline uint16_t 296 UREAD2(uhci_softc_t *sc, bus_size_t r) 297 { 298 299 UBARR(sc); 300 return bus_space_read_2(sc->iot, sc->ioh, r); 301 } 302 303 static __inline uint32_t 304 UREAD4(uhci_softc_t *sc, bus_size_t r) 305 { 306 307 UBARR(sc); 308 return bus_space_read_4(sc->iot, sc->ioh, r); 309 } 310 311 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 312 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 313 314 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 315 316 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 317 318 #define UHCI_INTR_ENDPT 1 319 320 const struct usbd_bus_methods uhci_bus_methods = { 321 uhci_open, 322 uhci_softintr, 323 uhci_poll, 324 uhci_allocm, 325 uhci_freem, 326 uhci_allocx, 327 uhci_freex, 328 }; 329 330 const struct usbd_pipe_methods uhci_root_ctrl_methods = { 331 uhci_root_ctrl_transfer, 332 uhci_root_ctrl_start, 333 uhci_root_ctrl_abort, 334 uhci_root_ctrl_close, 335 uhci_noop, 336 uhci_root_ctrl_done, 337 }; 338 339 const struct usbd_pipe_methods uhci_root_intr_methods = { 340 uhci_root_intr_transfer, 341 uhci_root_intr_start, 342 uhci_root_intr_abort, 343 uhci_root_intr_close, 344 uhci_noop, 345 uhci_root_intr_done, 346 }; 347 348 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 349 uhci_device_ctrl_transfer, 350 uhci_device_ctrl_start, 351 uhci_device_ctrl_abort, 352 uhci_device_ctrl_close, 353 uhci_noop, 354 uhci_device_ctrl_done, 355 }; 356 357 const struct usbd_pipe_methods uhci_device_intr_methods = { 358 uhci_device_intr_transfer, 359 uhci_device_intr_start, 360 uhci_device_intr_abort, 361 uhci_device_intr_close, 362 uhci_device_clear_toggle, 363 uhci_device_intr_done, 364 }; 365 366 const struct usbd_pipe_methods uhci_device_bulk_methods = { 367 uhci_device_bulk_transfer, 368 uhci_device_bulk_start, 369 uhci_device_bulk_abort, 370 uhci_device_bulk_close, 371 uhci_device_clear_toggle, 372 uhci_device_bulk_done, 373 }; 374 375 const struct usbd_pipe_methods uhci_device_isoc_methods = { 376 uhci_device_isoc_transfer, 377 uhci_device_isoc_start, 378 uhci_device_isoc_abort, 379 uhci_device_isoc_close, 380 uhci_noop, 381 uhci_device_isoc_done, 382 }; 383 384 #define uhci_add_intr_info(sc, ii) \ 385 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 386 #define uhci_del_intr_info(ii) \ 387 do { \ 388 LIST_REMOVE((ii), list); \ 389 (ii)->list.le_prev = NULL; \ 390 } while (0) 391 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 392 393 Static inline uhci_soft_qh_t * 394 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 395 { 396 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 397 398 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 399 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 400 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 401 printf("uhci_find_prev_qh: QH not found\n"); 402 return (NULL); 403 } 404 #endif 405 } 406 return (pqh); 407 } 408 409 void 410 uhci_globalreset(uhci_softc_t *sc) 411 { 412 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 413 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 414 UHCICMD(sc, 0); /* do nothing */ 415 } 416 417 usbd_status 418 uhci_init(uhci_softc_t *sc) 419 { 420 usbd_status err; 421 int i, j; 422 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 423 uhci_soft_td_t *std; 424 425 DPRINTFN(1,("uhci_init: start\n")); 426 427 #ifdef UHCI_DEBUG 428 thesc = sc; 429 430 if (uhcidebug > 2) 431 uhci_dumpregs(sc); 432 #endif 433 434 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 435 uhci_globalreset(sc); /* reset the controller */ 436 uhci_reset(sc); 437 438 #ifdef __NetBSD__ 439 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 440 USB_MEM_RESERVE); 441 #endif 442 443 /* Allocate and initialize real frame array. */ 444 err = usb_allocmem(&sc->sc_bus, 445 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 446 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 447 if (err) 448 return (err); 449 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 450 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 451 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 452 453 /* 454 * Allocate a TD, inactive, that hangs from the last QH. 455 * This is to avoid a bug in the PIIX that makes it run berserk 456 * otherwise. 457 */ 458 std = uhci_alloc_std(sc); 459 if (std == NULL) 460 return (USBD_NOMEM); 461 std->link.std = NULL; 462 std->td.td_link = htole32(UHCI_PTR_T); 463 std->td.td_status = htole32(0); /* inactive */ 464 std->td.td_token = htole32(0); 465 std->td.td_buffer = htole32(0); 466 467 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 468 lsqh = uhci_alloc_sqh(sc); 469 if (lsqh == NULL) 470 return (USBD_NOMEM); 471 lsqh->hlink = NULL; 472 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 473 lsqh->elink = std; 474 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 475 sc->sc_last_qh = lsqh; 476 477 /* Allocate the dummy QH where bulk traffic will be queued. */ 478 bsqh = uhci_alloc_sqh(sc); 479 if (bsqh == NULL) 480 return (USBD_NOMEM); 481 bsqh->hlink = lsqh; 482 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 483 bsqh->elink = NULL; 484 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 485 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 486 487 /* Allocate dummy QH where high speed control traffic will be queued. */ 488 chsqh = uhci_alloc_sqh(sc); 489 if (chsqh == NULL) 490 return (USBD_NOMEM); 491 chsqh->hlink = bsqh; 492 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 493 chsqh->elink = NULL; 494 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 495 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 496 497 /* Allocate dummy QH where control traffic will be queued. */ 498 clsqh = uhci_alloc_sqh(sc); 499 if (clsqh == NULL) 500 return (USBD_NOMEM); 501 clsqh->hlink = bsqh; 502 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 503 clsqh->elink = NULL; 504 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 505 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 506 507 /* 508 * Make all (virtual) frame list pointers point to the interrupt 509 * queue heads and the interrupt queue heads at the control 510 * queue head and point the physical frame list to the virtual. 511 */ 512 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 513 std = uhci_alloc_std(sc); 514 sqh = uhci_alloc_sqh(sc); 515 if (std == NULL || sqh == NULL) 516 return (USBD_NOMEM); 517 std->link.sqh = sqh; 518 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 519 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 520 std->td.td_token = htole32(0); 521 std->td.td_buffer = htole32(0); 522 sqh->hlink = clsqh; 523 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 524 sqh->elink = NULL; 525 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 526 sc->sc_vframes[i].htd = std; 527 sc->sc_vframes[i].etd = std; 528 sc->sc_vframes[i].hqh = sqh; 529 sc->sc_vframes[i].eqh = sqh; 530 for (j = i; 531 j < UHCI_FRAMELIST_COUNT; 532 j += UHCI_VFRAMELIST_COUNT) 533 sc->sc_pframes[j] = htole32(std->physaddr); 534 } 535 536 LIST_INIT(&sc->sc_intrhead); 537 538 SIMPLEQ_INIT(&sc->sc_free_xfers); 539 540 usb_callout_init(sc->sc_poll_handle); 541 542 /* Set up the bus struct. */ 543 sc->sc_bus.methods = &uhci_bus_methods; 544 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 545 546 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 547 548 DPRINTFN(1,("uhci_init: enabling\n")); 549 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 550 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 551 552 return (uhci_run(sc, 1)); /* and here we go... */ 553 } 554 555 #if defined(__NetBSD__) || defined(__OpenBSD__) 556 int 557 uhci_activate(device_t self, enum devact act) 558 { 559 struct uhci_softc *sc = device_private(self); 560 int rv = 0; 561 562 switch (act) { 563 case DVACT_ACTIVATE: 564 return (EOPNOTSUPP); 565 566 case DVACT_DEACTIVATE: 567 sc->sc_dying = 1; 568 if (sc->sc_child != NULL) 569 rv = config_deactivate(sc->sc_child); 570 break; 571 } 572 return (rv); 573 } 574 575 void 576 uhci_childdet(device_t self, device_t child) 577 { 578 struct uhci_softc *sc = device_private(self); 579 580 KASSERT(sc->sc_child == child); 581 sc->sc_child = NULL; 582 } 583 584 int 585 uhci_detach(struct uhci_softc *sc, int flags) 586 { 587 usbd_xfer_handle xfer; 588 int rv = 0; 589 590 if (sc->sc_child != NULL) 591 rv = config_detach(sc->sc_child, flags); 592 593 if (rv != 0) 594 return (rv); 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 = bus->hci_private; 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 = bus->hci_private; 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 = bus->hci_private; 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 * Handle suspend/resume. 711 * 712 * We need to switch to polling mode here, because this routine is 713 * called from an interrupt context. This is all right since we 714 * are almost suspended anyway. 715 */ 716 bool 717 uhci_resume(device_t dv PMF_FN_ARGS) 718 { 719 uhci_softc_t *sc = device_private(dv); 720 int cmd; 721 int s; 722 723 s = splhardusb(); 724 725 cmd = UREAD2(sc, UHCI_CMD); 726 sc->sc_bus.use_polling++; 727 UWRITE2(sc, UHCI_INTR, 0); 728 uhci_globalreset(sc); 729 uhci_reset(sc); 730 if (cmd & UHCI_CMD_RS) 731 uhci_run(sc, 0); 732 733 /* restore saved state */ 734 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 735 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 736 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 737 738 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force resume */ 739 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 740 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 741 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | 742 UHCI_INTR_RIE | UHCI_INTR_IOCE | UHCI_INTR_SPIE); 743 UHCICMD(sc, UHCI_CMD_MAXP); 744 uhci_run(sc, 1); /* and start traffic again */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 746 sc->sc_bus.use_polling--; 747 if (sc->sc_intr_xfer != NULL) 748 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, 749 sc->sc_intr_xfer); 750 #ifdef UHCI_DEBUG 751 if (uhcidebug > 2) 752 uhci_dumpregs(sc); 753 #endif 754 755 splx(s); 756 757 return true; 758 } 759 760 bool 761 uhci_suspend(device_t dv PMF_FN_ARGS) 762 { 763 uhci_softc_t *sc = device_private(dv); 764 int cmd; 765 int s; 766 767 s = splhardusb(); 768 769 cmd = UREAD2(sc, UHCI_CMD); 770 771 #ifdef UHCI_DEBUG 772 if (uhcidebug > 2) 773 uhci_dumpregs(sc); 774 #endif 775 if (sc->sc_intr_xfer != NULL) 776 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 777 sc->sc_intr_xfer); 778 sc->sc_bus.use_polling++; 779 uhci_run(sc, 0); /* stop the controller */ 780 cmd &= ~UHCI_CMD_RS; 781 782 /* save some state if BIOS doesn't */ 783 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 784 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 785 786 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 787 788 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter suspend */ 789 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 790 sc->sc_bus.use_polling--; 791 792 splx(s); 793 794 return true; 795 } 796 797 #ifdef UHCI_DEBUG 798 Static void 799 uhci_dumpregs(uhci_softc_t *sc) 800 { 801 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 802 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 803 device_xname(sc->sc_dev), 804 UREAD2(sc, UHCI_CMD), 805 UREAD2(sc, UHCI_STS), 806 UREAD2(sc, UHCI_INTR), 807 UREAD2(sc, UHCI_FRNUM), 808 UREAD4(sc, UHCI_FLBASEADDR), 809 UREAD1(sc, UHCI_SOF), 810 UREAD2(sc, UHCI_PORTSC1), 811 UREAD2(sc, UHCI_PORTSC2))); 812 } 813 814 void 815 uhci_dump_td(uhci_soft_td_t *p) 816 { 817 char sbuf[128], sbuf2[128]; 818 819 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 820 "token=0x%08lx buffer=0x%08lx\n", 821 p, (long)p->physaddr, 822 (long)le32toh(p->td.td_link), 823 (long)le32toh(p->td.td_status), 824 (long)le32toh(p->td.td_token), 825 (long)le32toh(p->td.td_buffer))); 826 827 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 828 sbuf, sizeof(sbuf)); 829 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 830 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 831 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 832 sbuf2, sizeof(sbuf2)); 833 834 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 835 "D=%d,maxlen=%d\n", sbuf, sbuf2, 836 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 837 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 838 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 839 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 840 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 841 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 842 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 843 } 844 845 void 846 uhci_dump_qh(uhci_soft_qh_t *sqh) 847 { 848 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 849 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 850 le32toh(sqh->qh.qh_elink))); 851 } 852 853 854 #if 1 855 void 856 uhci_dump(void) 857 { 858 uhci_dump_all(thesc); 859 } 860 #endif 861 862 void 863 uhci_dump_all(uhci_softc_t *sc) 864 { 865 uhci_dumpregs(sc); 866 printf("intrs=%d\n", sc->sc_bus.no_intrs); 867 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 868 uhci_dump_qh(sc->sc_lctl_start); 869 } 870 871 872 void 873 uhci_dump_qhs(uhci_soft_qh_t *sqh) 874 { 875 uhci_dump_qh(sqh); 876 877 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 878 * Traverses sideways first, then down. 879 * 880 * QH1 881 * QH2 882 * No QH 883 * TD2.1 884 * TD2.2 885 * TD1.1 886 * etc. 887 * 888 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 889 */ 890 891 892 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 893 uhci_dump_qhs(sqh->hlink); 894 else 895 DPRINTF(("No QH\n")); 896 897 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 898 uhci_dump_tds(sqh->elink); 899 else 900 DPRINTF(("No TD\n")); 901 } 902 903 void 904 uhci_dump_tds(uhci_soft_td_t *std) 905 { 906 uhci_soft_td_t *td; 907 908 for(td = std; td != NULL; td = td->link.std) { 909 uhci_dump_td(td); 910 911 /* Check whether the link pointer in this TD marks 912 * the link pointer as end of queue. This avoids 913 * printing the free list in case the queue/TD has 914 * already been moved there (seatbelt). 915 */ 916 if (le32toh(td->td.td_link) & UHCI_PTR_T || 917 le32toh(td->td.td_link) == 0) 918 break; 919 } 920 } 921 922 Static void 923 uhci_dump_ii(uhci_intr_info_t *ii) 924 { 925 usbd_pipe_handle pipe; 926 usb_endpoint_descriptor_t *ed; 927 usbd_device_handle dev; 928 929 #ifdef DIAGNOSTIC 930 #define DONE ii->isdone 931 #else 932 #define DONE 0 933 #endif 934 if (ii == NULL) { 935 printf("ii NULL\n"); 936 return; 937 } 938 if (ii->xfer == NULL) { 939 printf("ii %p: done=%d xfer=NULL\n", 940 ii, DONE); 941 return; 942 } 943 pipe = ii->xfer->pipe; 944 if (pipe == NULL) { 945 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 946 ii, DONE, ii->xfer); 947 return; 948 } 949 if (pipe->endpoint == NULL) { 950 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 951 ii, DONE, ii->xfer, pipe); 952 return; 953 } 954 if (pipe->device == NULL) { 955 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 956 ii, DONE, ii->xfer, pipe); 957 return; 958 } 959 ed = pipe->endpoint->edesc; 960 dev = pipe->device; 961 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", 962 ii, DONE, ii->xfer, dev, 963 UGETW(dev->ddesc.idVendor), 964 UGETW(dev->ddesc.idProduct), 965 dev->address, pipe, 966 ed->bEndpointAddress, ed->bmAttributes); 967 #undef DONE 968 } 969 970 void uhci_dump_iis(struct uhci_softc *sc); 971 void 972 uhci_dump_iis(struct uhci_softc *sc) 973 { 974 uhci_intr_info_t *ii; 975 976 printf("intr_info list:\n"); 977 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 978 uhci_dump_ii(ii); 979 } 980 981 void iidump(void); 982 void iidump(void) { uhci_dump_iis(thesc); } 983 984 #endif 985 986 /* 987 * This routine is executed periodically and simulates interrupts 988 * from the root controller interrupt pipe for port status change. 989 */ 990 void 991 uhci_poll_hub(void *addr) 992 { 993 usbd_xfer_handle xfer = addr; 994 usbd_pipe_handle pipe = xfer->pipe; 995 uhci_softc_t *sc = pipe->device->bus->hci_private; 996 int s; 997 u_char *p; 998 999 DPRINTFN(20, ("uhci_poll_hub\n")); 1000 1001 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1002 1003 p = KERNADDR(&xfer->dmabuf, 0); 1004 p[0] = 0; 1005 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1006 p[0] |= 1<<1; 1007 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1008 p[0] |= 1<<2; 1009 if (p[0] == 0) 1010 /* No change, try again in a while */ 1011 return; 1012 1013 xfer->actlen = 1; 1014 xfer->status = USBD_NORMAL_COMPLETION; 1015 s = splusb(); 1016 xfer->device->bus->intr_context++; 1017 usb_transfer_complete(xfer); 1018 xfer->device->bus->intr_context--; 1019 splx(s); 1020 } 1021 1022 void 1023 uhci_root_intr_done(usbd_xfer_handle xfer) 1024 { 1025 } 1026 1027 void 1028 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1029 { 1030 } 1031 1032 /* 1033 * Let the last QH loop back to the high speed control transfer QH. 1034 * This is what intel calls "bandwidth reclamation" and improves 1035 * USB performance a lot for some devices. 1036 * If we are already looping, just count it. 1037 */ 1038 void 1039 uhci_add_loop(uhci_softc_t *sc) { 1040 #ifdef UHCI_DEBUG 1041 if (uhcinoloop) 1042 return; 1043 #endif 1044 if (++sc->sc_loops == 1) { 1045 DPRINTFN(5,("uhci_start_loop: add\n")); 1046 /* Note, we don't loop back the soft pointer. */ 1047 sc->sc_last_qh->qh.qh_hlink = 1048 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1049 } 1050 } 1051 1052 void 1053 uhci_rem_loop(uhci_softc_t *sc) { 1054 #ifdef UHCI_DEBUG 1055 if (uhcinoloop) 1056 return; 1057 #endif 1058 if (--sc->sc_loops == 0) { 1059 DPRINTFN(5,("uhci_end_loop: remove\n")); 1060 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1061 } 1062 } 1063 1064 /* Add high speed control QH, called at splusb(). */ 1065 void 1066 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1067 { 1068 uhci_soft_qh_t *eqh; 1069 1070 SPLUSBCHECK; 1071 1072 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1073 eqh = sc->sc_hctl_end; 1074 sqh->hlink = eqh->hlink; 1075 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1076 eqh->hlink = sqh; 1077 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1078 sc->sc_hctl_end = sqh; 1079 #ifdef UHCI_CTL_LOOP 1080 uhci_add_loop(sc); 1081 #endif 1082 } 1083 1084 /* Remove high speed control QH, called at splusb(). */ 1085 void 1086 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1087 { 1088 uhci_soft_qh_t *pqh; 1089 1090 SPLUSBCHECK; 1091 1092 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1093 #ifdef UHCI_CTL_LOOP 1094 uhci_rem_loop(sc); 1095 #endif 1096 /* 1097 * The T bit should be set in the elink of the QH so that the HC 1098 * doesn't follow the pointer. This condition may fail if the 1099 * the transferred packet was short so that the QH still points 1100 * at the last used TD. 1101 * In this case we set the T bit and wait a little for the HC 1102 * to stop looking at the TD. 1103 */ 1104 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1105 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1106 delay(UHCI_QH_REMOVE_DELAY); 1107 } 1108 1109 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1110 pqh->hlink = sqh->hlink; 1111 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1112 delay(UHCI_QH_REMOVE_DELAY); 1113 if (sc->sc_hctl_end == sqh) 1114 sc->sc_hctl_end = pqh; 1115 } 1116 1117 /* Add low speed control QH, called at splusb(). */ 1118 void 1119 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1120 { 1121 uhci_soft_qh_t *eqh; 1122 1123 SPLUSBCHECK; 1124 1125 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1126 eqh = sc->sc_lctl_end; 1127 sqh->hlink = eqh->hlink; 1128 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1129 eqh->hlink = sqh; 1130 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1131 sc->sc_lctl_end = sqh; 1132 } 1133 1134 /* Remove low speed control QH, called at splusb(). */ 1135 void 1136 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1137 { 1138 uhci_soft_qh_t *pqh; 1139 1140 SPLUSBCHECK; 1141 1142 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1143 /* See comment in uhci_remove_hs_ctrl() */ 1144 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1145 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1146 delay(UHCI_QH_REMOVE_DELAY); 1147 } 1148 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1149 pqh->hlink = sqh->hlink; 1150 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1151 delay(UHCI_QH_REMOVE_DELAY); 1152 if (sc->sc_lctl_end == sqh) 1153 sc->sc_lctl_end = pqh; 1154 } 1155 1156 /* Add bulk QH, called at splusb(). */ 1157 void 1158 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1159 { 1160 uhci_soft_qh_t *eqh; 1161 1162 SPLUSBCHECK; 1163 1164 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1165 eqh = sc->sc_bulk_end; 1166 sqh->hlink = eqh->hlink; 1167 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1168 eqh->hlink = sqh; 1169 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1170 sc->sc_bulk_end = sqh; 1171 uhci_add_loop(sc); 1172 } 1173 1174 /* Remove bulk QH, called at splusb(). */ 1175 void 1176 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1177 { 1178 uhci_soft_qh_t *pqh; 1179 1180 SPLUSBCHECK; 1181 1182 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1183 uhci_rem_loop(sc); 1184 /* See comment in uhci_remove_hs_ctrl() */ 1185 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1186 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1187 delay(UHCI_QH_REMOVE_DELAY); 1188 } 1189 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1190 pqh->hlink = sqh->hlink; 1191 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1192 delay(UHCI_QH_REMOVE_DELAY); 1193 if (sc->sc_bulk_end == sqh) 1194 sc->sc_bulk_end = pqh; 1195 } 1196 1197 Static int uhci_intr1(uhci_softc_t *); 1198 1199 int 1200 uhci_intr(void *arg) 1201 { 1202 uhci_softc_t *sc = arg; 1203 1204 if (sc->sc_dying || !device_has_power(sc->sc_dev)) 1205 return (0); 1206 1207 if (sc->sc_bus.use_polling) { 1208 #ifdef DIAGNOSTIC 1209 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1210 #endif 1211 return (0); 1212 } 1213 1214 return (uhci_intr1(sc)); 1215 } 1216 1217 int 1218 uhci_intr1(uhci_softc_t *sc) 1219 { 1220 int status; 1221 int ack; 1222 1223 #ifdef UHCI_DEBUG 1224 if (uhcidebug > 15) { 1225 DPRINTF(("%s: uhci_intr1\n", device_xname(sc->sc_dev))); 1226 uhci_dumpregs(sc); 1227 } 1228 #endif 1229 1230 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1231 if (status == 0) /* The interrupt was not for us. */ 1232 return (0); 1233 1234 if (sc->sc_suspend != PWR_RESUME) { 1235 #ifdef DIAGNOSTIC 1236 printf("%s: interrupt while not operating ignored\n", 1237 device_xname(sc->sc_dev)); 1238 #endif 1239 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1240 return (0); 1241 } 1242 1243 ack = 0; 1244 if (status & UHCI_STS_USBINT) 1245 ack |= UHCI_STS_USBINT; 1246 if (status & UHCI_STS_USBEI) 1247 ack |= UHCI_STS_USBEI; 1248 if (status & UHCI_STS_RD) { 1249 ack |= UHCI_STS_RD; 1250 #ifdef UHCI_DEBUG 1251 printf("%s: resume detect\n", device_xname(sc->sc_dev)); 1252 #endif 1253 } 1254 if (status & UHCI_STS_HSE) { 1255 ack |= UHCI_STS_HSE; 1256 printf("%s: host system error\n", device_xname(sc->sc_dev)); 1257 } 1258 if (status & UHCI_STS_HCPE) { 1259 ack |= UHCI_STS_HCPE; 1260 printf("%s: host controller process error\n", 1261 device_xname(sc->sc_dev)); 1262 } 1263 if (status & UHCI_STS_HCH) { 1264 /* no acknowledge needed */ 1265 if (!sc->sc_dying) { 1266 printf("%s: host controller halted\n", 1267 device_xname(sc->sc_dev)); 1268 #ifdef UHCI_DEBUG 1269 uhci_dump_all(sc); 1270 #endif 1271 } 1272 sc->sc_dying = 1; 1273 } 1274 1275 if (!ack) 1276 return (0); /* nothing to acknowledge */ 1277 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1278 1279 sc->sc_bus.no_intrs++; 1280 usb_schedsoftintr(&sc->sc_bus); 1281 1282 DPRINTFN(15, ("%s: uhci_intr: exit\n", device_xname(sc->sc_dev))); 1283 1284 return (1); 1285 } 1286 1287 void 1288 uhci_softintr(void *v) 1289 { 1290 struct usbd_bus *bus = v; 1291 uhci_softc_t *sc = bus->hci_private; 1292 uhci_intr_info_t *ii, *nextii; 1293 1294 DPRINTFN(10,("%s: uhci_softintr (%d)\n", device_xname(sc->sc_dev), 1295 sc->sc_bus.intr_context)); 1296 1297 sc->sc_bus.intr_context++; 1298 1299 /* 1300 * Interrupts on UHCI really suck. When the host controller 1301 * interrupts because a transfer is completed there is no 1302 * way of knowing which transfer it was. You can scan down 1303 * the TDs and QHs of the previous frame to limit the search, 1304 * but that assumes that the interrupt was not delayed by more 1305 * than 1 ms, which may not always be true (e.g. after debug 1306 * output on a slow console). 1307 * We scan all interrupt descriptors to see if any have 1308 * completed. 1309 */ 1310 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1311 nextii = LIST_NEXT(ii, list); 1312 uhci_check_intr(sc, ii); 1313 } 1314 1315 #ifdef USB_USE_SOFTINTR 1316 if (sc->sc_softwake) { 1317 sc->sc_softwake = 0; 1318 wakeup(&sc->sc_softwake); 1319 } 1320 #endif /* USB_USE_SOFTINTR */ 1321 1322 sc->sc_bus.intr_context--; 1323 } 1324 1325 /* Check for an interrupt. */ 1326 void 1327 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1328 { 1329 uhci_soft_td_t *std, *lstd; 1330 u_int32_t status; 1331 1332 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1333 #ifdef DIAGNOSTIC 1334 if (ii == NULL) { 1335 printf("uhci_check_intr: no ii? %p\n", ii); 1336 return; 1337 } 1338 #endif 1339 if (ii->xfer->status == USBD_CANCELLED || 1340 ii->xfer->status == USBD_TIMEOUT) { 1341 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1342 return; 1343 } 1344 1345 if (ii->stdstart == NULL) 1346 return; 1347 lstd = ii->stdend; 1348 #ifdef DIAGNOSTIC 1349 if (lstd == NULL) { 1350 printf("uhci_check_intr: std==0\n"); 1351 return; 1352 } 1353 #endif 1354 /* 1355 * If the last TD is still active we need to check whether there 1356 * is an error somewhere in the middle, or whether there was a 1357 * short packet (SPD and not ACTIVE). 1358 */ 1359 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1360 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1361 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1362 status = le32toh(std->td.td_status); 1363 /* If there's an active TD the xfer isn't done. */ 1364 if (status & UHCI_TD_ACTIVE) 1365 break; 1366 /* Any kind of error makes the xfer done. */ 1367 if (status & UHCI_TD_STALLED) 1368 goto done; 1369 /* We want short packets, and it is short: it's done */ 1370 if ((status & UHCI_TD_SPD) && 1371 UHCI_TD_GET_ACTLEN(status) < 1372 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1373 goto done; 1374 } 1375 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1376 ii, ii->stdstart)); 1377 return; 1378 } 1379 done: 1380 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1381 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1382 uhci_idone(ii); 1383 } 1384 1385 /* Called at splusb() */ 1386 void 1387 uhci_idone(uhci_intr_info_t *ii) 1388 { 1389 usbd_xfer_handle xfer = ii->xfer; 1390 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1391 uhci_soft_td_t *std; 1392 u_int32_t status = 0, nstatus; 1393 int actlen; 1394 1395 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1396 #ifdef DIAGNOSTIC 1397 { 1398 int s = splhigh(); 1399 if (ii->isdone) { 1400 splx(s); 1401 #ifdef UHCI_DEBUG 1402 printf("uhci_idone: ii is done!\n "); 1403 uhci_dump_ii(ii); 1404 #else 1405 printf("uhci_idone: ii=%p is done!\n", ii); 1406 #endif 1407 return; 1408 } 1409 ii->isdone = 1; 1410 splx(s); 1411 } 1412 #endif 1413 1414 if (xfer->nframes != 0) { 1415 /* Isoc transfer, do things differently. */ 1416 uhci_soft_td_t **stds = upipe->u.iso.stds; 1417 int i, n, nframes, len; 1418 1419 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1420 1421 nframes = xfer->nframes; 1422 actlen = 0; 1423 n = UXFER(xfer)->curframe; 1424 for (i = 0; i < nframes; i++) { 1425 std = stds[n]; 1426 #ifdef UHCI_DEBUG 1427 if (uhcidebug > 5) { 1428 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1429 uhci_dump_td(std); 1430 } 1431 #endif 1432 if (++n >= UHCI_VFRAMELIST_COUNT) 1433 n = 0; 1434 status = le32toh(std->td.td_status); 1435 len = UHCI_TD_GET_ACTLEN(status); 1436 xfer->frlengths[i] = len; 1437 actlen += len; 1438 } 1439 upipe->u.iso.inuse -= nframes; 1440 xfer->actlen = actlen; 1441 xfer->status = USBD_NORMAL_COMPLETION; 1442 goto end; 1443 } 1444 1445 #ifdef UHCI_DEBUG 1446 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1447 ii, xfer, upipe)); 1448 if (uhcidebug > 10) 1449 uhci_dump_tds(ii->stdstart); 1450 #endif 1451 1452 /* The transfer is done, compute actual length and status. */ 1453 actlen = 0; 1454 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1455 nstatus = le32toh(std->td.td_status); 1456 if (nstatus & UHCI_TD_ACTIVE) 1457 break; 1458 1459 status = nstatus; 1460 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1461 UHCI_TD_PID_SETUP) 1462 actlen += UHCI_TD_GET_ACTLEN(status); 1463 else { 1464 /* 1465 * UHCI will report CRCTO in addition to a STALL or NAK 1466 * for a SETUP transaction. See section 3.2.2, "TD 1467 * CONTROL AND STATUS". 1468 */ 1469 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1470 status &= ~UHCI_TD_CRCTO; 1471 } 1472 } 1473 /* If there are left over TDs we need to update the toggle. */ 1474 if (std != NULL) 1475 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1476 1477 status &= UHCI_TD_ERROR; 1478 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1479 actlen, status)); 1480 xfer->actlen = actlen; 1481 if (status != 0) { 1482 #ifdef UHCI_DEBUG 1483 char sbuf[128]; 1484 1485 bitmask_snprintf((u_int32_t)status, 1486 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1487 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1488 sbuf, sizeof(sbuf)); 1489 1490 DPRINTFN((status == UHCI_TD_STALLED)*10, 1491 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1492 "status 0x%s\n", 1493 xfer->pipe->device->address, 1494 xfer->pipe->endpoint->edesc->bEndpointAddress, 1495 sbuf)); 1496 #endif 1497 1498 if (status == UHCI_TD_STALLED) 1499 xfer->status = USBD_STALLED; 1500 else 1501 xfer->status = USBD_IOERROR; /* more info XXX */ 1502 } else { 1503 xfer->status = USBD_NORMAL_COMPLETION; 1504 } 1505 1506 end: 1507 usb_transfer_complete(xfer); 1508 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1509 } 1510 1511 /* 1512 * Called when a request does not complete. 1513 */ 1514 void 1515 uhci_timeout(void *addr) 1516 { 1517 uhci_intr_info_t *ii = addr; 1518 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1519 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1520 uhci_softc_t *sc = upipe->pipe.device->bus->hci_private; 1521 1522 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1523 1524 if (sc->sc_dying) { 1525 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1526 return; 1527 } 1528 1529 /* Execute the abort in a process context. */ 1530 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1531 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1532 USB_TASKQ_HC); 1533 } 1534 1535 void 1536 uhci_timeout_task(void *addr) 1537 { 1538 usbd_xfer_handle xfer = addr; 1539 int s; 1540 1541 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1542 1543 s = splusb(); 1544 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1545 splx(s); 1546 } 1547 1548 /* 1549 * Wait here until controller claims to have an interrupt. 1550 * Then call uhci_intr and return. Use timeout to avoid waiting 1551 * too long. 1552 * Only used during boot when interrupts are not enabled yet. 1553 */ 1554 void 1555 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1556 { 1557 int timo = xfer->timeout; 1558 uhci_intr_info_t *ii; 1559 1560 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1561 1562 xfer->status = USBD_IN_PROGRESS; 1563 for (; timo >= 0; timo--) { 1564 usb_delay_ms(&sc->sc_bus, 1); 1565 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1566 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1567 uhci_intr1(sc); 1568 if (xfer->status != USBD_IN_PROGRESS) 1569 return; 1570 } 1571 } 1572 1573 /* Timeout */ 1574 DPRINTF(("uhci_waitintr: timeout\n")); 1575 for (ii = LIST_FIRST(&sc->sc_intrhead); 1576 ii != NULL && ii->xfer != xfer; 1577 ii = LIST_NEXT(ii, list)) 1578 ; 1579 #ifdef DIAGNOSTIC 1580 if (ii == NULL) 1581 panic("uhci_waitintr: lost intr_info"); 1582 #endif 1583 uhci_idone(ii); 1584 } 1585 1586 void 1587 uhci_poll(struct usbd_bus *bus) 1588 { 1589 uhci_softc_t *sc = bus->hci_private; 1590 1591 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1592 uhci_intr1(sc); 1593 } 1594 1595 void 1596 uhci_reset(uhci_softc_t *sc) 1597 { 1598 int n; 1599 1600 UHCICMD(sc, UHCI_CMD_HCRESET); 1601 /* The reset bit goes low when the controller is done. */ 1602 for (n = 0; n < UHCI_RESET_TIMEOUT && 1603 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1604 usb_delay_ms(&sc->sc_bus, 1); 1605 if (n >= UHCI_RESET_TIMEOUT) 1606 printf("%s: controller did not reset\n", 1607 device_xname(sc->sc_dev)); 1608 } 1609 1610 usbd_status 1611 uhci_run(uhci_softc_t *sc, int run) 1612 { 1613 int s, n, running; 1614 u_int16_t cmd; 1615 1616 run = run != 0; 1617 s = splhardusb(); 1618 DPRINTF(("uhci_run: setting run=%d\n", run)); 1619 cmd = UREAD2(sc, UHCI_CMD); 1620 if (run) 1621 cmd |= UHCI_CMD_RS; 1622 else 1623 cmd &= ~UHCI_CMD_RS; 1624 UHCICMD(sc, cmd); 1625 for(n = 0; n < 10; n++) { 1626 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1627 /* return when we've entered the state we want */ 1628 if (run == running) { 1629 splx(s); 1630 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1631 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1632 return (USBD_NORMAL_COMPLETION); 1633 } 1634 usb_delay_ms(&sc->sc_bus, 1); 1635 } 1636 splx(s); 1637 printf("%s: cannot %s\n", device_xname(sc->sc_dev), 1638 run ? "start" : "stop"); 1639 return (USBD_IOERROR); 1640 } 1641 1642 /* 1643 * Memory management routines. 1644 * uhci_alloc_std allocates TDs 1645 * uhci_alloc_sqh allocates QHs 1646 * These two routines do their own free list management, 1647 * partly for speed, partly because allocating DMAable memory 1648 * has page size granularaity so much memory would be wasted if 1649 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1650 */ 1651 1652 uhci_soft_td_t * 1653 uhci_alloc_std(uhci_softc_t *sc) 1654 { 1655 uhci_soft_td_t *std; 1656 usbd_status err; 1657 int i, offs; 1658 usb_dma_t dma; 1659 1660 if (sc->sc_freetds == NULL) { 1661 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1662 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1663 UHCI_TD_ALIGN, &dma); 1664 if (err) 1665 return (0); 1666 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1667 offs = i * UHCI_STD_SIZE; 1668 std = KERNADDR(&dma, offs); 1669 std->physaddr = DMAADDR(&dma, offs); 1670 std->link.std = sc->sc_freetds; 1671 sc->sc_freetds = std; 1672 } 1673 } 1674 std = sc->sc_freetds; 1675 sc->sc_freetds = std->link.std; 1676 memset(&std->td, 0, sizeof(uhci_td_t)); 1677 return std; 1678 } 1679 1680 void 1681 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1682 { 1683 #ifdef DIAGNOSTIC 1684 #define TD_IS_FREE 0x12345678 1685 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1686 printf("uhci_free_std: freeing free TD %p\n", std); 1687 return; 1688 } 1689 std->td.td_token = htole32(TD_IS_FREE); 1690 #endif 1691 std->link.std = sc->sc_freetds; 1692 sc->sc_freetds = std; 1693 } 1694 1695 uhci_soft_qh_t * 1696 uhci_alloc_sqh(uhci_softc_t *sc) 1697 { 1698 uhci_soft_qh_t *sqh; 1699 usbd_status err; 1700 int i, offs; 1701 usb_dma_t dma; 1702 1703 if (sc->sc_freeqhs == NULL) { 1704 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1705 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1706 UHCI_QH_ALIGN, &dma); 1707 if (err) 1708 return (0); 1709 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1710 offs = i * UHCI_SQH_SIZE; 1711 sqh = KERNADDR(&dma, offs); 1712 sqh->physaddr = DMAADDR(&dma, offs); 1713 sqh->hlink = sc->sc_freeqhs; 1714 sc->sc_freeqhs = sqh; 1715 } 1716 } 1717 sqh = sc->sc_freeqhs; 1718 sc->sc_freeqhs = sqh->hlink; 1719 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1720 return (sqh); 1721 } 1722 1723 void 1724 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1725 { 1726 sqh->hlink = sc->sc_freeqhs; 1727 sc->sc_freeqhs = sqh; 1728 } 1729 1730 void 1731 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1732 uhci_soft_td_t *stdend) 1733 { 1734 uhci_soft_td_t *p; 1735 1736 for (; std != stdend; std = p) { 1737 p = std->link.std; 1738 uhci_free_std(sc, std); 1739 } 1740 } 1741 1742 usbd_status 1743 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1744 int rd, u_int16_t flags, usb_dma_t *dma, 1745 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1746 { 1747 uhci_soft_td_t *p, *lastp; 1748 uhci_physaddr_t lastlink; 1749 int i, ntd, l, tog, maxp; 1750 u_int32_t status; 1751 int addr = upipe->pipe.device->address; 1752 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1753 1754 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1755 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1756 upipe->pipe.device->speed, flags)); 1757 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1758 if (maxp == 0) { 1759 printf("uhci_alloc_std_chain: maxp=0\n"); 1760 return (USBD_INVAL); 1761 } 1762 ntd = (len + maxp - 1) / maxp; 1763 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1764 ntd++; 1765 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1766 if (ntd == 0) { 1767 *sp = *ep = 0; 1768 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1769 return (USBD_NORMAL_COMPLETION); 1770 } 1771 tog = upipe->nexttoggle; 1772 if (ntd % 2 == 0) 1773 tog ^= 1; 1774 upipe->nexttoggle = tog ^ 1; 1775 lastp = NULL; 1776 lastlink = UHCI_PTR_T; 1777 ntd--; 1778 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1779 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1780 status |= UHCI_TD_LS; 1781 if (flags & USBD_SHORT_XFER_OK) 1782 status |= UHCI_TD_SPD; 1783 for (i = ntd; i >= 0; i--) { 1784 p = uhci_alloc_std(sc); 1785 if (p == NULL) { 1786 KASSERT(lastp != NULL); 1787 uhci_free_std_chain(sc, lastp, NULL); 1788 return (USBD_NOMEM); 1789 } 1790 p->link.std = lastp; 1791 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1792 lastp = p; 1793 lastlink = p->physaddr; 1794 p->td.td_status = htole32(status); 1795 if (i == ntd) { 1796 /* last TD */ 1797 l = len % maxp; 1798 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1799 l = maxp; 1800 *ep = p; 1801 } else 1802 l = maxp; 1803 p->td.td_token = 1804 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1805 UHCI_TD_OUT(l, endpt, addr, tog)); 1806 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1807 tog ^= 1; 1808 } 1809 *sp = lastp; 1810 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1811 upipe->nexttoggle)); 1812 return (USBD_NORMAL_COMPLETION); 1813 } 1814 1815 void 1816 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1817 { 1818 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1819 upipe->nexttoggle = 0; 1820 } 1821 1822 void 1823 uhci_noop(usbd_pipe_handle pipe) 1824 { 1825 } 1826 1827 usbd_status 1828 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1829 { 1830 usbd_status err; 1831 1832 /* Insert last in queue. */ 1833 err = usb_insert_transfer(xfer); 1834 if (err) 1835 return (err); 1836 1837 /* 1838 * Pipe isn't running (otherwise err would be USBD_INPROG), 1839 * so start it first. 1840 */ 1841 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1842 } 1843 1844 usbd_status 1845 uhci_device_bulk_start(usbd_xfer_handle xfer) 1846 { 1847 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1848 usbd_device_handle dev = upipe->pipe.device; 1849 uhci_softc_t *sc = dev->bus->hci_private; 1850 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1851 uhci_soft_td_t *data, *dataend; 1852 uhci_soft_qh_t *sqh; 1853 usbd_status err; 1854 int len, isread, endpt; 1855 int s; 1856 1857 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1858 xfer, xfer->length, xfer->flags, ii)); 1859 1860 if (sc->sc_dying) 1861 return (USBD_IOERROR); 1862 1863 #ifdef DIAGNOSTIC 1864 if (xfer->rqflags & URQ_REQUEST) 1865 panic("uhci_device_bulk_transfer: a request"); 1866 #endif 1867 1868 len = xfer->length; 1869 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1870 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1871 sqh = upipe->u.bulk.sqh; 1872 1873 upipe->u.bulk.isread = isread; 1874 upipe->u.bulk.length = len; 1875 1876 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1877 &xfer->dmabuf, &data, &dataend); 1878 if (err) 1879 return (err); 1880 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1881 1882 #ifdef UHCI_DEBUG 1883 if (uhcidebug > 8) { 1884 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1885 uhci_dump_tds(data); 1886 } 1887 #endif 1888 1889 /* Set up interrupt info. */ 1890 ii->xfer = xfer; 1891 ii->stdstart = data; 1892 ii->stdend = dataend; 1893 #ifdef DIAGNOSTIC 1894 if (!ii->isdone) { 1895 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1896 } 1897 ii->isdone = 0; 1898 #endif 1899 1900 sqh->elink = data; 1901 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1902 1903 s = splusb(); 1904 uhci_add_bulk(sc, sqh); 1905 uhci_add_intr_info(sc, ii); 1906 1907 if (xfer->timeout && !sc->sc_bus.use_polling) { 1908 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1909 uhci_timeout, ii); 1910 } 1911 xfer->status = USBD_IN_PROGRESS; 1912 splx(s); 1913 1914 #ifdef UHCI_DEBUG 1915 if (uhcidebug > 10) { 1916 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1917 uhci_dump_tds(data); 1918 } 1919 #endif 1920 1921 if (sc->sc_bus.use_polling) 1922 uhci_waitintr(sc, xfer); 1923 1924 return (USBD_IN_PROGRESS); 1925 } 1926 1927 /* Abort a device bulk request. */ 1928 void 1929 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1930 { 1931 DPRINTF(("uhci_device_bulk_abort:\n")); 1932 uhci_abort_xfer(xfer, USBD_CANCELLED); 1933 } 1934 1935 /* 1936 * Abort a device request. 1937 * If this routine is called at splusb() it guarantees that the request 1938 * will be removed from the hardware scheduling and that the callback 1939 * for it will be called with USBD_CANCELLED status. 1940 * It's impossible to guarantee that the requested transfer will not 1941 * have happened since the hardware runs concurrently. 1942 * If the transaction has already happened we rely on the ordinary 1943 * interrupt processing to process it. 1944 */ 1945 void 1946 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1947 { 1948 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1949 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1950 uhci_softc_t *sc = upipe->pipe.device->bus->hci_private; 1951 uhci_soft_td_t *std; 1952 int s; 1953 int wake; 1954 1955 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1956 1957 if (sc->sc_dying) { 1958 /* If we're dying, just do the software part. */ 1959 s = splusb(); 1960 xfer->status = status; /* make software ignore it */ 1961 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1962 usb_transfer_complete(xfer); 1963 splx(s); 1964 return; 1965 } 1966 1967 if (xfer->device->bus->intr_context || !curproc) 1968 panic("uhci_abort_xfer: not in process context"); 1969 1970 /* 1971 * If an abort is already in progress then just wait for it to 1972 * complete and return. 1973 */ 1974 if (xfer->hcflags & UXFER_ABORTING) { 1975 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 1976 #ifdef DIAGNOSTIC 1977 if (status == USBD_TIMEOUT) 1978 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 1979 #endif 1980 /* Override the status which might be USBD_TIMEOUT. */ 1981 xfer->status = status; 1982 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 1983 xfer->hcflags |= UXFER_ABORTWAIT; 1984 while (xfer->hcflags & UXFER_ABORTING) 1985 tsleep(&xfer->hcflags, PZERO, "uhciaw", 0); 1986 return; 1987 } 1988 xfer->hcflags |= UXFER_ABORTING; 1989 1990 /* 1991 * Step 1: Make interrupt routine and hardware ignore xfer. 1992 */ 1993 s = splusb(); 1994 xfer->status = status; /* make software ignore it */ 1995 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1996 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1997 for (std = ii->stdstart; std != NULL; std = std->link.std) 1998 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1999 splx(s); 2000 2001 /* 2002 * Step 2: Wait until we know hardware has finished any possible 2003 * use of the xfer. Also make sure the soft interrupt routine 2004 * has run. 2005 */ 2006 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2007 s = splusb(); 2008 #ifdef USB_USE_SOFTINTR 2009 sc->sc_softwake = 1; 2010 #endif /* USB_USE_SOFTINTR */ 2011 usb_schedsoftintr(&sc->sc_bus); 2012 #ifdef USB_USE_SOFTINTR 2013 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2014 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2015 #endif /* USB_USE_SOFTINTR */ 2016 splx(s); 2017 2018 /* 2019 * Step 3: Execute callback. 2020 */ 2021 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2022 s = splusb(); 2023 #ifdef DIAGNOSTIC 2024 ii->isdone = 1; 2025 #endif 2026 wake = xfer->hcflags & UXFER_ABORTWAIT; 2027 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2028 usb_transfer_complete(xfer); 2029 if (wake) 2030 wakeup(&xfer->hcflags); 2031 splx(s); 2032 } 2033 2034 /* Close a device bulk pipe. */ 2035 void 2036 uhci_device_bulk_close(usbd_pipe_handle pipe) 2037 { 2038 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2039 usbd_device_handle dev = upipe->pipe.device; 2040 uhci_softc_t *sc = dev->bus->hci_private; 2041 2042 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2043 } 2044 2045 usbd_status 2046 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2047 { 2048 usbd_status err; 2049 2050 /* Insert last in queue. */ 2051 err = usb_insert_transfer(xfer); 2052 if (err) 2053 return (err); 2054 2055 /* 2056 * Pipe isn't running (otherwise err would be USBD_INPROG), 2057 * so start it first. 2058 */ 2059 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2060 } 2061 2062 usbd_status 2063 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2064 { 2065 uhci_softc_t *sc = xfer->pipe->device->bus->hci_private; 2066 usbd_status err; 2067 2068 if (sc->sc_dying) 2069 return (USBD_IOERROR); 2070 2071 #ifdef DIAGNOSTIC 2072 if (!(xfer->rqflags & URQ_REQUEST)) 2073 panic("uhci_device_ctrl_transfer: not a request"); 2074 #endif 2075 2076 err = uhci_device_request(xfer); 2077 if (err) 2078 return (err); 2079 2080 if (sc->sc_bus.use_polling) 2081 uhci_waitintr(sc, xfer); 2082 return (USBD_IN_PROGRESS); 2083 } 2084 2085 usbd_status 2086 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2087 { 2088 usbd_status err; 2089 2090 /* Insert last in queue. */ 2091 err = usb_insert_transfer(xfer); 2092 if (err) 2093 return (err); 2094 2095 /* 2096 * Pipe isn't running (otherwise err would be USBD_INPROG), 2097 * so start it first. 2098 */ 2099 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2100 } 2101 2102 usbd_status 2103 uhci_device_intr_start(usbd_xfer_handle xfer) 2104 { 2105 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2106 usbd_device_handle dev = upipe->pipe.device; 2107 uhci_softc_t *sc = dev->bus->hci_private; 2108 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2109 uhci_soft_td_t *data, *dataend; 2110 uhci_soft_qh_t *sqh; 2111 usbd_status err; 2112 int isread, endpt; 2113 int i, s; 2114 2115 if (sc->sc_dying) 2116 return (USBD_IOERROR); 2117 2118 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2119 xfer, xfer->length, xfer->flags)); 2120 2121 #ifdef DIAGNOSTIC 2122 if (xfer->rqflags & URQ_REQUEST) 2123 panic("uhci_device_intr_transfer: a request"); 2124 #endif 2125 2126 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2127 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2128 2129 upipe->u.intr.isread = isread; 2130 2131 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, 2132 xfer->flags, &xfer->dmabuf, &data, 2133 &dataend); 2134 if (err) 2135 return (err); 2136 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2137 2138 #ifdef UHCI_DEBUG 2139 if (uhcidebug > 10) { 2140 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2141 uhci_dump_tds(data); 2142 uhci_dump_qh(upipe->u.intr.qhs[0]); 2143 } 2144 #endif 2145 2146 s = splusb(); 2147 /* Set up interrupt info. */ 2148 ii->xfer = xfer; 2149 ii->stdstart = data; 2150 ii->stdend = dataend; 2151 #ifdef DIAGNOSTIC 2152 if (!ii->isdone) { 2153 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2154 } 2155 ii->isdone = 0; 2156 #endif 2157 2158 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2159 upipe->u.intr.qhs[0])); 2160 for (i = 0; i < upipe->u.intr.npoll; i++) { 2161 sqh = upipe->u.intr.qhs[i]; 2162 sqh->elink = data; 2163 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2164 } 2165 uhci_add_intr_info(sc, ii); 2166 xfer->status = USBD_IN_PROGRESS; 2167 splx(s); 2168 2169 #ifdef UHCI_DEBUG 2170 if (uhcidebug > 10) { 2171 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2172 uhci_dump_tds(data); 2173 uhci_dump_qh(upipe->u.intr.qhs[0]); 2174 } 2175 #endif 2176 2177 return (USBD_IN_PROGRESS); 2178 } 2179 2180 /* Abort a device control request. */ 2181 void 2182 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2183 { 2184 DPRINTF(("uhci_device_ctrl_abort:\n")); 2185 uhci_abort_xfer(xfer, USBD_CANCELLED); 2186 } 2187 2188 /* Close a device control pipe. */ 2189 void 2190 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2191 { 2192 } 2193 2194 /* Abort a device interrupt request. */ 2195 void 2196 uhci_device_intr_abort(usbd_xfer_handle xfer) 2197 { 2198 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2199 if (xfer->pipe->intrxfer == xfer) { 2200 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2201 xfer->pipe->intrxfer = NULL; 2202 } 2203 uhci_abort_xfer(xfer, USBD_CANCELLED); 2204 } 2205 2206 /* Close a device interrupt pipe. */ 2207 void 2208 uhci_device_intr_close(usbd_pipe_handle pipe) 2209 { 2210 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2211 uhci_softc_t *sc = pipe->device->bus->hci_private; 2212 int i, npoll; 2213 int s; 2214 2215 /* Unlink descriptors from controller data structures. */ 2216 npoll = upipe->u.intr.npoll; 2217 s = splusb(); 2218 for (i = 0; i < npoll; i++) 2219 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2220 splx(s); 2221 2222 /* 2223 * We now have to wait for any activity on the physical 2224 * descriptors to stop. 2225 */ 2226 usb_delay_ms(&sc->sc_bus, 2); 2227 2228 for(i = 0; i < npoll; i++) 2229 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2230 free(upipe->u.intr.qhs, M_USBHC); 2231 2232 /* XXX free other resources */ 2233 } 2234 2235 usbd_status 2236 uhci_device_request(usbd_xfer_handle xfer) 2237 { 2238 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2239 usb_device_request_t *req = &xfer->request; 2240 usbd_device_handle dev = upipe->pipe.device; 2241 uhci_softc_t *sc = dev->bus->hci_private; 2242 int addr = dev->address; 2243 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2244 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2245 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2246 uhci_soft_qh_t *sqh; 2247 int len; 2248 u_int32_t ls; 2249 usbd_status err; 2250 int isread; 2251 int s; 2252 2253 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2254 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2255 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2256 UGETW(req->wIndex), UGETW(req->wLength), 2257 addr, endpt)); 2258 2259 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2260 isread = req->bmRequestType & UT_READ; 2261 len = UGETW(req->wLength); 2262 2263 setup = upipe->u.ctl.setup; 2264 stat = upipe->u.ctl.stat; 2265 sqh = upipe->u.ctl.sqh; 2266 2267 /* Set up data transaction */ 2268 if (len != 0) { 2269 upipe->nexttoggle = 1; 2270 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2271 &xfer->dmabuf, &data, &dataend); 2272 if (err) 2273 return (err); 2274 next = data; 2275 dataend->link.std = stat; 2276 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2277 } else { 2278 next = stat; 2279 } 2280 upipe->u.ctl.length = len; 2281 2282 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2283 2284 setup->link.std = next; 2285 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2286 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2287 UHCI_TD_ACTIVE); 2288 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2289 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2290 2291 stat->link.std = NULL; 2292 stat->td.td_link = htole32(UHCI_PTR_T); 2293 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2294 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2295 stat->td.td_token = 2296 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2297 UHCI_TD_IN (0, endpt, addr, 1)); 2298 stat->td.td_buffer = htole32(0); 2299 2300 #ifdef UHCI_DEBUG 2301 if (uhcidebug > 10) { 2302 DPRINTF(("uhci_device_request: before transfer\n")); 2303 uhci_dump_tds(setup); 2304 } 2305 #endif 2306 2307 /* Set up interrupt info. */ 2308 ii->xfer = xfer; 2309 ii->stdstart = setup; 2310 ii->stdend = stat; 2311 #ifdef DIAGNOSTIC 2312 if (!ii->isdone) { 2313 printf("uhci_device_request: not done, ii=%p\n", ii); 2314 } 2315 ii->isdone = 0; 2316 #endif 2317 2318 sqh->elink = setup; 2319 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2320 2321 s = splusb(); 2322 if (dev->speed == USB_SPEED_LOW) 2323 uhci_add_ls_ctrl(sc, sqh); 2324 else 2325 uhci_add_hs_ctrl(sc, sqh); 2326 uhci_add_intr_info(sc, ii); 2327 #ifdef UHCI_DEBUG 2328 if (uhcidebug > 12) { 2329 uhci_soft_td_t *std; 2330 uhci_soft_qh_t *xqh; 2331 uhci_soft_qh_t *sxqh; 2332 int maxqh = 0; 2333 uhci_physaddr_t link; 2334 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2335 for (std = sc->sc_vframes[0].htd, link = 0; 2336 (link & UHCI_PTR_QH) == 0; 2337 std = std->link.std) { 2338 link = le32toh(std->td.td_link); 2339 uhci_dump_td(std); 2340 } 2341 sxqh = (uhci_soft_qh_t *)std; 2342 uhci_dump_qh(sxqh); 2343 for (xqh = sxqh; 2344 xqh != NULL; 2345 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2346 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2347 uhci_dump_qh(xqh); 2348 } 2349 DPRINTF(("Enqueued QH:\n")); 2350 uhci_dump_qh(sqh); 2351 uhci_dump_tds(sqh->elink); 2352 } 2353 #endif 2354 if (xfer->timeout && !sc->sc_bus.use_polling) { 2355 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2356 uhci_timeout, ii); 2357 } 2358 xfer->status = USBD_IN_PROGRESS; 2359 splx(s); 2360 2361 return (USBD_NORMAL_COMPLETION); 2362 } 2363 2364 usbd_status 2365 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2366 { 2367 usbd_status err; 2368 2369 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2370 2371 /* Put it on our queue, */ 2372 err = usb_insert_transfer(xfer); 2373 2374 /* bail out on error, */ 2375 if (err && err != USBD_IN_PROGRESS) 2376 return (err); 2377 2378 /* XXX should check inuse here */ 2379 2380 /* insert into schedule, */ 2381 uhci_device_isoc_enter(xfer); 2382 2383 /* and start if the pipe wasn't running */ 2384 if (!err) 2385 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2386 2387 return (err); 2388 } 2389 2390 void 2391 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2392 { 2393 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2394 usbd_device_handle dev = upipe->pipe.device; 2395 uhci_softc_t *sc = dev->bus->hci_private; 2396 struct iso *iso = &upipe->u.iso; 2397 uhci_soft_td_t *std; 2398 u_int32_t buf, len, status; 2399 int s, i, next, nframes; 2400 2401 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2402 "nframes=%d\n", 2403 iso->inuse, iso->next, xfer, xfer->nframes)); 2404 2405 if (sc->sc_dying) 2406 return; 2407 2408 if (xfer->status == USBD_IN_PROGRESS) { 2409 /* This request has already been entered into the frame list */ 2410 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2411 /* XXX */ 2412 } 2413 2414 #ifdef DIAGNOSTIC 2415 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2416 printf("uhci_device_isoc_enter: overflow!\n"); 2417 #endif 2418 2419 next = iso->next; 2420 if (next == -1) { 2421 /* Not in use yet, schedule it a few frames ahead. */ 2422 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2423 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2424 } 2425 2426 xfer->status = USBD_IN_PROGRESS; 2427 UXFER(xfer)->curframe = next; 2428 2429 buf = DMAADDR(&xfer->dmabuf, 0); 2430 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2431 UHCI_TD_ACTIVE | 2432 UHCI_TD_IOS); 2433 nframes = xfer->nframes; 2434 s = splusb(); 2435 for (i = 0; i < nframes; i++) { 2436 std = iso->stds[next]; 2437 if (++next >= UHCI_VFRAMELIST_COUNT) 2438 next = 0; 2439 len = xfer->frlengths[i]; 2440 std->td.td_buffer = htole32(buf); 2441 if (i == nframes - 1) 2442 status |= UHCI_TD_IOC; 2443 std->td.td_status = htole32(status); 2444 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2445 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2446 #ifdef UHCI_DEBUG 2447 if (uhcidebug > 5) { 2448 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2449 uhci_dump_td(std); 2450 } 2451 #endif 2452 buf += len; 2453 } 2454 iso->next = next; 2455 iso->inuse += xfer->nframes; 2456 2457 splx(s); 2458 } 2459 2460 usbd_status 2461 uhci_device_isoc_start(usbd_xfer_handle xfer) 2462 { 2463 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2464 uhci_softc_t *sc = upipe->pipe.device->bus->hci_private; 2465 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2466 uhci_soft_td_t *end; 2467 int s, i; 2468 2469 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2470 2471 if (sc->sc_dying) 2472 return (USBD_IOERROR); 2473 2474 #ifdef DIAGNOSTIC 2475 if (xfer->status != USBD_IN_PROGRESS) 2476 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2477 #endif 2478 2479 /* Find the last TD */ 2480 i = UXFER(xfer)->curframe + xfer->nframes; 2481 if (i >= UHCI_VFRAMELIST_COUNT) 2482 i -= UHCI_VFRAMELIST_COUNT; 2483 end = upipe->u.iso.stds[i]; 2484 2485 #ifdef DIAGNOSTIC 2486 if (end == NULL) { 2487 printf("uhci_device_isoc_start: end == NULL\n"); 2488 return (USBD_INVAL); 2489 } 2490 #endif 2491 2492 s = splusb(); 2493 2494 /* Set up interrupt info. */ 2495 ii->xfer = xfer; 2496 ii->stdstart = end; 2497 ii->stdend = end; 2498 #ifdef DIAGNOSTIC 2499 if (!ii->isdone) 2500 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2501 ii->isdone = 0; 2502 #endif 2503 uhci_add_intr_info(sc, ii); 2504 2505 splx(s); 2506 2507 return (USBD_IN_PROGRESS); 2508 } 2509 2510 void 2511 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2512 { 2513 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2514 uhci_soft_td_t **stds = upipe->u.iso.stds; 2515 uhci_soft_td_t *std; 2516 int i, n, s, nframes, maxlen, len; 2517 2518 s = splusb(); 2519 2520 /* Transfer is already done. */ 2521 if (xfer->status != USBD_NOT_STARTED && 2522 xfer->status != USBD_IN_PROGRESS) { 2523 splx(s); 2524 return; 2525 } 2526 2527 /* Give xfer the requested abort code. */ 2528 xfer->status = USBD_CANCELLED; 2529 2530 /* make hardware ignore it, */ 2531 nframes = xfer->nframes; 2532 n = UXFER(xfer)->curframe; 2533 maxlen = 0; 2534 for (i = 0; i < nframes; i++) { 2535 std = stds[n]; 2536 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2537 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2538 if (len > maxlen) 2539 maxlen = len; 2540 if (++n >= UHCI_VFRAMELIST_COUNT) 2541 n = 0; 2542 } 2543 2544 /* and wait until we are sure the hardware has finished. */ 2545 delay(maxlen); 2546 2547 #ifdef DIAGNOSTIC 2548 UXFER(xfer)->iinfo.isdone = 1; 2549 #endif 2550 /* Run callback and remove from interrupt list. */ 2551 usb_transfer_complete(xfer); 2552 2553 splx(s); 2554 } 2555 2556 void 2557 uhci_device_isoc_close(usbd_pipe_handle pipe) 2558 { 2559 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2560 usbd_device_handle dev = upipe->pipe.device; 2561 uhci_softc_t *sc = dev->bus->hci_private; 2562 uhci_soft_td_t *std, *vstd; 2563 struct iso *iso; 2564 int i, s; 2565 2566 /* 2567 * Make sure all TDs are marked as inactive. 2568 * Wait for completion. 2569 * Unschedule. 2570 * Deallocate. 2571 */ 2572 iso = &upipe->u.iso; 2573 2574 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2575 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2576 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2577 2578 s = splusb(); 2579 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2580 std = iso->stds[i]; 2581 for (vstd = sc->sc_vframes[i].htd; 2582 vstd != NULL && vstd->link.std != std; 2583 vstd = vstd->link.std) 2584 ; 2585 if (vstd == NULL) { 2586 /*panic*/ 2587 printf("uhci_device_isoc_close: %p not found\n", std); 2588 splx(s); 2589 return; 2590 } 2591 vstd->link = std->link; 2592 vstd->td.td_link = std->td.td_link; 2593 uhci_free_std(sc, std); 2594 } 2595 splx(s); 2596 2597 free(iso->stds, M_USBHC); 2598 } 2599 2600 usbd_status 2601 uhci_setup_isoc(usbd_pipe_handle pipe) 2602 { 2603 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2604 usbd_device_handle dev = upipe->pipe.device; 2605 uhci_softc_t *sc = dev->bus->hci_private; 2606 int addr = upipe->pipe.device->address; 2607 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2608 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2609 uhci_soft_td_t *std, *vstd; 2610 u_int32_t token; 2611 struct iso *iso; 2612 int i, s; 2613 2614 iso = &upipe->u.iso; 2615 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2616 M_USBHC, M_WAITOK); 2617 2618 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2619 UHCI_TD_OUT(0, endpt, addr, 0); 2620 2621 /* Allocate the TDs and mark as inactive; */ 2622 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2623 std = uhci_alloc_std(sc); 2624 if (std == 0) 2625 goto bad; 2626 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2627 std->td.td_token = htole32(token); 2628 iso->stds[i] = std; 2629 } 2630 2631 /* Insert TDs into schedule. */ 2632 s = splusb(); 2633 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2634 std = iso->stds[i]; 2635 vstd = sc->sc_vframes[i].htd; 2636 std->link = vstd->link; 2637 std->td.td_link = vstd->td.td_link; 2638 vstd->link.std = std; 2639 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2640 } 2641 splx(s); 2642 2643 iso->next = -1; 2644 iso->inuse = 0; 2645 2646 return (USBD_NORMAL_COMPLETION); 2647 2648 bad: 2649 while (--i >= 0) 2650 uhci_free_std(sc, iso->stds[i]); 2651 free(iso->stds, M_USBHC); 2652 return (USBD_NOMEM); 2653 } 2654 2655 void 2656 uhci_device_isoc_done(usbd_xfer_handle xfer) 2657 { 2658 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2659 2660 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 2661 xfer->actlen, xfer->busy_free)); 2662 2663 if (ii->xfer != xfer) 2664 /* Not on interrupt list, ignore it. */ 2665 return; 2666 2667 if (!uhci_active_intr_info(ii)) 2668 return; 2669 2670 #ifdef DIAGNOSTIC 2671 if (ii->stdend == NULL) { 2672 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2673 #ifdef UHCI_DEBUG 2674 uhci_dump_ii(ii); 2675 #endif 2676 return; 2677 } 2678 #endif 2679 2680 /* Turn off the interrupt since it is active even if the TD is not. */ 2681 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2682 2683 uhci_del_intr_info(ii); /* remove from active list */ 2684 } 2685 2686 void 2687 uhci_device_intr_done(usbd_xfer_handle xfer) 2688 { 2689 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2690 uhci_softc_t *sc = ii->sc; 2691 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2692 uhci_soft_qh_t *sqh; 2693 int i, npoll; 2694 2695 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2696 2697 npoll = upipe->u.intr.npoll; 2698 for(i = 0; i < npoll; i++) { 2699 sqh = upipe->u.intr.qhs[i]; 2700 sqh->elink = NULL; 2701 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2702 } 2703 uhci_free_std_chain(sc, ii->stdstart, NULL); 2704 2705 /* XXX Wasteful. */ 2706 if (xfer->pipe->repeat) { 2707 uhci_soft_td_t *data, *dataend; 2708 2709 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2710 2711 /* This alloc cannot fail since we freed the chain above. */ 2712 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2713 &xfer->dmabuf, &data, &dataend); 2714 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2715 2716 #ifdef UHCI_DEBUG 2717 if (uhcidebug > 10) { 2718 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2719 uhci_dump_tds(data); 2720 uhci_dump_qh(upipe->u.intr.qhs[0]); 2721 } 2722 #endif 2723 2724 ii->stdstart = data; 2725 ii->stdend = dataend; 2726 #ifdef DIAGNOSTIC 2727 if (!ii->isdone) { 2728 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2729 } 2730 ii->isdone = 0; 2731 #endif 2732 for (i = 0; i < npoll; i++) { 2733 sqh = upipe->u.intr.qhs[i]; 2734 sqh->elink = data; 2735 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2736 } 2737 xfer->status = USBD_IN_PROGRESS; 2738 /* The ii is already on the examined list, just leave it. */ 2739 } else { 2740 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2741 if (uhci_active_intr_info(ii)) 2742 uhci_del_intr_info(ii); 2743 } 2744 } 2745 2746 /* Deallocate request data structures */ 2747 void 2748 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2749 { 2750 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2751 uhci_softc_t *sc = ii->sc; 2752 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2753 2754 #ifdef DIAGNOSTIC 2755 if (!(xfer->rqflags & URQ_REQUEST)) 2756 panic("uhci_device_ctrl_done: not a request"); 2757 #endif 2758 2759 if (!uhci_active_intr_info(ii)) 2760 return; 2761 2762 uhci_del_intr_info(ii); /* remove from active list */ 2763 2764 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2765 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2766 else 2767 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2768 2769 if (upipe->u.ctl.length != 0) 2770 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2771 2772 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2773 } 2774 2775 /* Deallocate request data structures */ 2776 void 2777 uhci_device_bulk_done(usbd_xfer_handle xfer) 2778 { 2779 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2780 uhci_softc_t *sc = ii->sc; 2781 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2782 2783 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2784 xfer, ii, sc, upipe)); 2785 2786 if (!uhci_active_intr_info(ii)) 2787 return; 2788 2789 uhci_del_intr_info(ii); /* remove from active list */ 2790 2791 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2792 2793 uhci_free_std_chain(sc, ii->stdstart, NULL); 2794 2795 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2796 } 2797 2798 /* Add interrupt QH, called with vflock. */ 2799 void 2800 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2801 { 2802 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2803 uhci_soft_qh_t *eqh; 2804 2805 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2806 2807 eqh = vf->eqh; 2808 sqh->hlink = eqh->hlink; 2809 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2810 eqh->hlink = sqh; 2811 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2812 vf->eqh = sqh; 2813 vf->bandwidth++; 2814 } 2815 2816 /* Remove interrupt QH. */ 2817 void 2818 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2819 { 2820 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2821 uhci_soft_qh_t *pqh; 2822 2823 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2824 2825 /* See comment in uhci_remove_ctrl() */ 2826 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2827 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2828 delay(UHCI_QH_REMOVE_DELAY); 2829 } 2830 2831 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2832 pqh->hlink = sqh->hlink; 2833 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2834 delay(UHCI_QH_REMOVE_DELAY); 2835 if (vf->eqh == sqh) 2836 vf->eqh = pqh; 2837 vf->bandwidth--; 2838 } 2839 2840 usbd_status 2841 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2842 { 2843 uhci_soft_qh_t *sqh; 2844 int i, npoll, s; 2845 u_int bestbw, bw, bestoffs, offs; 2846 2847 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2848 if (ival == 0) { 2849 printf("uhci_device_setintr: 0 interval\n"); 2850 return (USBD_INVAL); 2851 } 2852 2853 if (ival > UHCI_VFRAMELIST_COUNT) 2854 ival = UHCI_VFRAMELIST_COUNT; 2855 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2856 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2857 2858 upipe->u.intr.npoll = npoll; 2859 upipe->u.intr.qhs = 2860 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2861 2862 /* 2863 * Figure out which offset in the schedule that has most 2864 * bandwidth left over. 2865 */ 2866 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2867 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2868 for (bw = i = 0; i < npoll; i++) 2869 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2870 if (bw < bestbw) { 2871 bestbw = bw; 2872 bestoffs = offs; 2873 } 2874 } 2875 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2876 2877 for(i = 0; i < npoll; i++) { 2878 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2879 sqh->elink = NULL; 2880 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2881 sqh->pos = MOD(i * ival + bestoffs); 2882 } 2883 #undef MOD 2884 2885 s = splusb(); 2886 /* Enter QHs into the controller data structures. */ 2887 for(i = 0; i < npoll; i++) 2888 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2889 splx(s); 2890 2891 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2892 return (USBD_NORMAL_COMPLETION); 2893 } 2894 2895 /* Open a new pipe. */ 2896 usbd_status 2897 uhci_open(usbd_pipe_handle pipe) 2898 { 2899 uhci_softc_t *sc = pipe->device->bus->hci_private; 2900 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2901 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2902 usbd_status err; 2903 int ival; 2904 2905 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2906 pipe, pipe->device->address, 2907 ed->bEndpointAddress, sc->sc_addr)); 2908 2909 upipe->aborting = 0; 2910 upipe->nexttoggle = 0; 2911 2912 if (pipe->device->address == sc->sc_addr) { 2913 switch (ed->bEndpointAddress) { 2914 case USB_CONTROL_ENDPOINT: 2915 pipe->methods = &uhci_root_ctrl_methods; 2916 break; 2917 case UE_DIR_IN | UHCI_INTR_ENDPT: 2918 pipe->methods = &uhci_root_intr_methods; 2919 break; 2920 default: 2921 return (USBD_INVAL); 2922 } 2923 } else { 2924 switch (ed->bmAttributes & UE_XFERTYPE) { 2925 case UE_CONTROL: 2926 pipe->methods = &uhci_device_ctrl_methods; 2927 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2928 if (upipe->u.ctl.sqh == NULL) 2929 goto bad; 2930 upipe->u.ctl.setup = uhci_alloc_std(sc); 2931 if (upipe->u.ctl.setup == NULL) { 2932 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2933 goto bad; 2934 } 2935 upipe->u.ctl.stat = uhci_alloc_std(sc); 2936 if (upipe->u.ctl.stat == NULL) { 2937 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2938 uhci_free_std(sc, upipe->u.ctl.setup); 2939 goto bad; 2940 } 2941 err = usb_allocmem(&sc->sc_bus, 2942 sizeof(usb_device_request_t), 2943 0, &upipe->u.ctl.reqdma); 2944 if (err) { 2945 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2946 uhci_free_std(sc, upipe->u.ctl.setup); 2947 uhci_free_std(sc, upipe->u.ctl.stat); 2948 goto bad; 2949 } 2950 break; 2951 case UE_INTERRUPT: 2952 pipe->methods = &uhci_device_intr_methods; 2953 ival = pipe->interval; 2954 if (ival == USBD_DEFAULT_INTERVAL) 2955 ival = ed->bInterval; 2956 return (uhci_device_setintr(sc, upipe, ival)); 2957 case UE_ISOCHRONOUS: 2958 pipe->methods = &uhci_device_isoc_methods; 2959 return (uhci_setup_isoc(pipe)); 2960 case UE_BULK: 2961 pipe->methods = &uhci_device_bulk_methods; 2962 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2963 if (upipe->u.bulk.sqh == NULL) 2964 goto bad; 2965 break; 2966 } 2967 } 2968 return (USBD_NORMAL_COMPLETION); 2969 2970 bad: 2971 return (USBD_NOMEM); 2972 } 2973 2974 /* 2975 * Data structures and routines to emulate the root hub. 2976 */ 2977 usb_device_descriptor_t uhci_devd = { 2978 USB_DEVICE_DESCRIPTOR_SIZE, 2979 UDESC_DEVICE, /* type */ 2980 {0x00, 0x01}, /* USB version */ 2981 UDCLASS_HUB, /* class */ 2982 UDSUBCLASS_HUB, /* subclass */ 2983 UDPROTO_FSHUB, /* protocol */ 2984 64, /* max packet */ 2985 {0},{0},{0x00,0x01}, /* device id */ 2986 1,2,0, /* string indicies */ 2987 1 /* # of configurations */ 2988 }; 2989 2990 const usb_config_descriptor_t uhci_confd = { 2991 USB_CONFIG_DESCRIPTOR_SIZE, 2992 UDESC_CONFIG, 2993 {USB_CONFIG_DESCRIPTOR_SIZE + 2994 USB_INTERFACE_DESCRIPTOR_SIZE + 2995 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2996 1, 2997 1, 2998 0, 2999 UC_ATTR_MBO | UC_SELF_POWERED, 3000 0 /* max power */ 3001 }; 3002 3003 const usb_interface_descriptor_t uhci_ifcd = { 3004 USB_INTERFACE_DESCRIPTOR_SIZE, 3005 UDESC_INTERFACE, 3006 0, 3007 0, 3008 1, 3009 UICLASS_HUB, 3010 UISUBCLASS_HUB, 3011 UIPROTO_FSHUB, 3012 0 3013 }; 3014 3015 const usb_endpoint_descriptor_t uhci_endpd = { 3016 USB_ENDPOINT_DESCRIPTOR_SIZE, 3017 UDESC_ENDPOINT, 3018 UE_DIR_IN | UHCI_INTR_ENDPT, 3019 UE_INTERRUPT, 3020 {8}, 3021 255 3022 }; 3023 3024 const usb_hub_descriptor_t uhci_hubd_piix = { 3025 USB_HUB_DESCRIPTOR_SIZE, 3026 UDESC_HUB, 3027 2, 3028 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3029 50, /* power on to power good */ 3030 0, 3031 { 0x00 }, /* both ports are removable */ 3032 { 0 }, 3033 }; 3034 3035 /* 3036 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3037 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3038 * should not be used by the USB subsystem. As we cannot issue a 3039 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3040 * will be enabled as part of the reset. 3041 * 3042 * On the VT83C572, the port cannot be successfully enabled until the 3043 * outstanding "port enable change" and "connection status change" 3044 * events have been reset. 3045 */ 3046 Static usbd_status 3047 uhci_portreset(uhci_softc_t *sc, int index) 3048 { 3049 int lim, port, x; 3050 3051 if (index == 1) 3052 port = UHCI_PORTSC1; 3053 else if (index == 2) 3054 port = UHCI_PORTSC2; 3055 else 3056 return (USBD_IOERROR); 3057 3058 x = URWMASK(UREAD2(sc, port)); 3059 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3060 3061 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3062 3063 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3064 index, UREAD2(sc, port))); 3065 3066 x = URWMASK(UREAD2(sc, port)); 3067 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3068 3069 delay(100); 3070 3071 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3072 index, UREAD2(sc, port))); 3073 3074 x = URWMASK(UREAD2(sc, port)); 3075 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3076 3077 for (lim = 10; --lim > 0;) { 3078 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3079 3080 x = UREAD2(sc, port); 3081 3082 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3083 index, lim, x)); 3084 3085 if (!(x & UHCI_PORTSC_CCS)) { 3086 /* 3087 * No device is connected (or was disconnected 3088 * during reset). Consider the port reset. 3089 * The delay must be long enough to ensure on 3090 * the initial iteration that the device 3091 * connection will have been registered. 50ms 3092 * appears to be sufficient, but 20ms is not. 3093 */ 3094 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3095 index, lim)); 3096 break; 3097 } 3098 3099 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3100 /* 3101 * Port enabled changed and/or connection 3102 * status changed were set. Reset either or 3103 * both raised flags (by writing a 1 to that 3104 * bit), and wait again for state to settle. 3105 */ 3106 UWRITE2(sc, port, URWMASK(x) | 3107 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3108 continue; 3109 } 3110 3111 if (x & UHCI_PORTSC_PE) 3112 /* Port is enabled */ 3113 break; 3114 3115 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3116 } 3117 3118 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3119 index, UREAD2(sc, port))); 3120 3121 if (lim <= 0) { 3122 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3123 return (USBD_TIMEOUT); 3124 } 3125 3126 sc->sc_isreset = 1; 3127 return (USBD_NORMAL_COMPLETION); 3128 } 3129 3130 /* 3131 * Simulate a hardware hub by handling all the necessary requests. 3132 */ 3133 usbd_status 3134 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3135 { 3136 usbd_status err; 3137 3138 /* Insert last in queue. */ 3139 err = usb_insert_transfer(xfer); 3140 if (err) 3141 return (err); 3142 3143 /* 3144 * Pipe isn't running (otherwise err would be USBD_INPROG), 3145 * so start it first. 3146 */ 3147 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3148 } 3149 3150 usbd_status 3151 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3152 { 3153 uhci_softc_t *sc = xfer->pipe->device->bus->hci_private; 3154 usb_device_request_t *req; 3155 void *buf = NULL; 3156 int port, x; 3157 int s, len, value, index, status, change, l, totlen = 0; 3158 usb_port_status_t ps; 3159 usbd_status err; 3160 3161 if (sc->sc_dying) 3162 return (USBD_IOERROR); 3163 3164 #ifdef DIAGNOSTIC 3165 if (!(xfer->rqflags & URQ_REQUEST)) 3166 panic("uhci_root_ctrl_transfer: not a request"); 3167 #endif 3168 req = &xfer->request; 3169 3170 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3171 req->bmRequestType, req->bRequest)); 3172 3173 len = UGETW(req->wLength); 3174 value = UGETW(req->wValue); 3175 index = UGETW(req->wIndex); 3176 3177 if (len != 0) 3178 buf = KERNADDR(&xfer->dmabuf, 0); 3179 3180 #define C(x,y) ((x) | ((y) << 8)) 3181 switch(C(req->bRequest, req->bmRequestType)) { 3182 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3183 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3184 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3185 /* 3186 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3187 * for the integrated root hub. 3188 */ 3189 break; 3190 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3191 if (len > 0) { 3192 *(u_int8_t *)buf = sc->sc_conf; 3193 totlen = 1; 3194 } 3195 break; 3196 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3197 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3198 if (len == 0) 3199 break; 3200 switch(value >> 8) { 3201 case UDESC_DEVICE: 3202 if ((value & 0xff) != 0) { 3203 err = USBD_IOERROR; 3204 goto ret; 3205 } 3206 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3207 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3208 memcpy(buf, &uhci_devd, l); 3209 break; 3210 case UDESC_CONFIG: 3211 if ((value & 0xff) != 0) { 3212 err = USBD_IOERROR; 3213 goto ret; 3214 } 3215 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3216 memcpy(buf, &uhci_confd, l); 3217 buf = (char *)buf + l; 3218 len -= l; 3219 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3220 totlen += l; 3221 memcpy(buf, &uhci_ifcd, l); 3222 buf = (char *)buf + l; 3223 len -= l; 3224 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3225 totlen += l; 3226 memcpy(buf, &uhci_endpd, l); 3227 break; 3228 case UDESC_STRING: 3229 #define sd ((usb_string_descriptor_t *)buf) 3230 switch (value & 0xff) { 3231 case 0: /* Language table */ 3232 totlen = usb_makelangtbl(sd, len); 3233 break; 3234 case 1: /* Vendor */ 3235 totlen = usb_makestrdesc(sd, len, 3236 sc->sc_vendor); 3237 break; 3238 case 2: /* Product */ 3239 totlen = usb_makestrdesc(sd, len, 3240 "UHCI root hub"); 3241 break; 3242 } 3243 #undef sd 3244 break; 3245 default: 3246 err = USBD_IOERROR; 3247 goto ret; 3248 } 3249 break; 3250 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3251 if (len > 0) { 3252 *(u_int8_t *)buf = 0; 3253 totlen = 1; 3254 } 3255 break; 3256 case C(UR_GET_STATUS, UT_READ_DEVICE): 3257 if (len > 1) { 3258 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3259 totlen = 2; 3260 } 3261 break; 3262 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3263 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3264 if (len > 1) { 3265 USETW(((usb_status_t *)buf)->wStatus, 0); 3266 totlen = 2; 3267 } 3268 break; 3269 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3270 if (value >= USB_MAX_DEVICES) { 3271 err = USBD_IOERROR; 3272 goto ret; 3273 } 3274 sc->sc_addr = value; 3275 break; 3276 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3277 if (value != 0 && value != 1) { 3278 err = USBD_IOERROR; 3279 goto ret; 3280 } 3281 sc->sc_conf = value; 3282 break; 3283 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3284 break; 3285 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3286 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3287 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3288 err = USBD_IOERROR; 3289 goto ret; 3290 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3291 break; 3292 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3293 break; 3294 /* Hub requests */ 3295 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3296 break; 3297 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3298 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3299 "port=%d feature=%d\n", 3300 index, value)); 3301 if (index == 1) 3302 port = UHCI_PORTSC1; 3303 else if (index == 2) 3304 port = UHCI_PORTSC2; 3305 else { 3306 err = USBD_IOERROR; 3307 goto ret; 3308 } 3309 switch(value) { 3310 case UHF_PORT_ENABLE: 3311 x = URWMASK(UREAD2(sc, port)); 3312 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3313 break; 3314 case UHF_PORT_SUSPEND: 3315 x = URWMASK(UREAD2(sc, port)); 3316 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3317 break; 3318 case UHF_PORT_RESET: 3319 x = URWMASK(UREAD2(sc, port)); 3320 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3321 break; 3322 case UHF_C_PORT_CONNECTION: 3323 x = URWMASK(UREAD2(sc, port)); 3324 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3325 break; 3326 case UHF_C_PORT_ENABLE: 3327 x = URWMASK(UREAD2(sc, port)); 3328 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3329 break; 3330 case UHF_C_PORT_OVER_CURRENT: 3331 x = URWMASK(UREAD2(sc, port)); 3332 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3333 break; 3334 case UHF_C_PORT_RESET: 3335 sc->sc_isreset = 0; 3336 err = USBD_NORMAL_COMPLETION; 3337 goto ret; 3338 case UHF_PORT_CONNECTION: 3339 case UHF_PORT_OVER_CURRENT: 3340 case UHF_PORT_POWER: 3341 case UHF_PORT_LOW_SPEED: 3342 case UHF_C_PORT_SUSPEND: 3343 default: 3344 err = USBD_IOERROR; 3345 goto ret; 3346 } 3347 break; 3348 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3349 if (index == 1) 3350 port = UHCI_PORTSC1; 3351 else if (index == 2) 3352 port = UHCI_PORTSC2; 3353 else { 3354 err = USBD_IOERROR; 3355 goto ret; 3356 } 3357 if (len > 0) { 3358 *(u_int8_t *)buf = 3359 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3360 UHCI_PORTSC_LS_SHIFT; 3361 totlen = 1; 3362 } 3363 break; 3364 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3365 if (len == 0) 3366 break; 3367 if ((value & 0xff) != 0) { 3368 err = USBD_IOERROR; 3369 goto ret; 3370 } 3371 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3372 totlen = l; 3373 memcpy(buf, &uhci_hubd_piix, l); 3374 break; 3375 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3376 if (len != 4) { 3377 err = USBD_IOERROR; 3378 goto ret; 3379 } 3380 memset(buf, 0, len); 3381 totlen = len; 3382 break; 3383 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3384 if (index == 1) 3385 port = UHCI_PORTSC1; 3386 else if (index == 2) 3387 port = UHCI_PORTSC2; 3388 else { 3389 err = USBD_IOERROR; 3390 goto ret; 3391 } 3392 if (len != 4) { 3393 err = USBD_IOERROR; 3394 goto ret; 3395 } 3396 x = UREAD2(sc, port); 3397 status = change = 0; 3398 if (x & UHCI_PORTSC_CCS) 3399 status |= UPS_CURRENT_CONNECT_STATUS; 3400 if (x & UHCI_PORTSC_CSC) 3401 change |= UPS_C_CONNECT_STATUS; 3402 if (x & UHCI_PORTSC_PE) 3403 status |= UPS_PORT_ENABLED; 3404 if (x & UHCI_PORTSC_POEDC) 3405 change |= UPS_C_PORT_ENABLED; 3406 if (x & UHCI_PORTSC_OCI) 3407 status |= UPS_OVERCURRENT_INDICATOR; 3408 if (x & UHCI_PORTSC_OCIC) 3409 change |= UPS_C_OVERCURRENT_INDICATOR; 3410 if (x & UHCI_PORTSC_SUSP) 3411 status |= UPS_SUSPEND; 3412 if (x & UHCI_PORTSC_LSDA) 3413 status |= UPS_LOW_SPEED; 3414 status |= UPS_PORT_POWER; 3415 if (sc->sc_isreset) 3416 change |= UPS_C_PORT_RESET; 3417 USETW(ps.wPortStatus, status); 3418 USETW(ps.wPortChange, change); 3419 l = min(len, sizeof ps); 3420 memcpy(buf, &ps, l); 3421 totlen = l; 3422 break; 3423 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3424 err = USBD_IOERROR; 3425 goto ret; 3426 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3427 break; 3428 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3429 if (index == 1) 3430 port = UHCI_PORTSC1; 3431 else if (index == 2) 3432 port = UHCI_PORTSC2; 3433 else { 3434 err = USBD_IOERROR; 3435 goto ret; 3436 } 3437 switch(value) { 3438 case UHF_PORT_ENABLE: 3439 x = URWMASK(UREAD2(sc, port)); 3440 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3441 break; 3442 case UHF_PORT_SUSPEND: 3443 x = URWMASK(UREAD2(sc, port)); 3444 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3445 break; 3446 case UHF_PORT_RESET: 3447 err = uhci_portreset(sc, index); 3448 goto ret; 3449 case UHF_PORT_POWER: 3450 /* Pretend we turned on power */ 3451 err = USBD_NORMAL_COMPLETION; 3452 goto ret; 3453 case UHF_C_PORT_CONNECTION: 3454 case UHF_C_PORT_ENABLE: 3455 case UHF_C_PORT_OVER_CURRENT: 3456 case UHF_PORT_CONNECTION: 3457 case UHF_PORT_OVER_CURRENT: 3458 case UHF_PORT_LOW_SPEED: 3459 case UHF_C_PORT_SUSPEND: 3460 case UHF_C_PORT_RESET: 3461 default: 3462 err = USBD_IOERROR; 3463 goto ret; 3464 } 3465 break; 3466 default: 3467 err = USBD_IOERROR; 3468 goto ret; 3469 } 3470 xfer->actlen = totlen; 3471 err = USBD_NORMAL_COMPLETION; 3472 ret: 3473 xfer->status = err; 3474 s = splusb(); 3475 usb_transfer_complete(xfer); 3476 splx(s); 3477 return (USBD_IN_PROGRESS); 3478 } 3479 3480 /* Abort a root control request. */ 3481 void 3482 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3483 { 3484 /* Nothing to do, all transfers are synchronous. */ 3485 } 3486 3487 /* Close the root pipe. */ 3488 void 3489 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3490 { 3491 DPRINTF(("uhci_root_ctrl_close\n")); 3492 } 3493 3494 /* Abort a root interrupt request. */ 3495 void 3496 uhci_root_intr_abort(usbd_xfer_handle xfer) 3497 { 3498 uhci_softc_t *sc = xfer->pipe->device->bus->hci_private; 3499 3500 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3501 sc->sc_intr_xfer = NULL; 3502 3503 if (xfer->pipe->intrxfer == xfer) { 3504 DPRINTF(("uhci_root_intr_abort: remove\n")); 3505 xfer->pipe->intrxfer = 0; 3506 } 3507 xfer->status = USBD_CANCELLED; 3508 #ifdef DIAGNOSTIC 3509 UXFER(xfer)->iinfo.isdone = 1; 3510 #endif 3511 usb_transfer_complete(xfer); 3512 } 3513 3514 usbd_status 3515 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3516 { 3517 usbd_status err; 3518 3519 /* Insert last in queue. */ 3520 err = usb_insert_transfer(xfer); 3521 if (err) 3522 return (err); 3523 3524 /* 3525 * Pipe isn't running (otherwise err would be USBD_INPROG), 3526 * start first 3527 */ 3528 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3529 } 3530 3531 /* Start a transfer on the root interrupt pipe */ 3532 usbd_status 3533 uhci_root_intr_start(usbd_xfer_handle xfer) 3534 { 3535 usbd_pipe_handle pipe = xfer->pipe; 3536 uhci_softc_t *sc = pipe->device->bus->hci_private; 3537 unsigned int ival; 3538 3539 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3540 xfer, xfer->length, xfer->flags)); 3541 3542 if (sc->sc_dying) 3543 return (USBD_IOERROR); 3544 3545 /* XXX temporary variable needed to avoid gcc3 warning */ 3546 ival = xfer->pipe->endpoint->edesc->bInterval; 3547 sc->sc_ival = mstohz(ival); 3548 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3549 sc->sc_intr_xfer = xfer; 3550 return (USBD_IN_PROGRESS); 3551 } 3552 3553 /* Close the root interrupt pipe. */ 3554 void 3555 uhci_root_intr_close(usbd_pipe_handle pipe) 3556 { 3557 uhci_softc_t *sc = pipe->device->bus->hci_private; 3558 3559 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3560 sc->sc_intr_xfer = NULL; 3561 DPRINTF(("uhci_root_intr_close\n")); 3562 } 3563
Indexes created Tue Sep 30 17:09:57 GMT 2025