1 /* $NetBSD: uhci.c,v 1.133 2001/01/21 02:39:52 augustss 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 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@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/data/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/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 82 /*#define UHCI_CTL_LOOP */ 83 84 #if defined(__FreeBSD__) 85 #include <machine/clock.h> 86 87 #define delay(d) DELAY(d) 88 #endif 89 90 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 91 92 #if defined(__OpenBSD__) 93 struct cfdriver uhci_cd = { 94 NULL, "uhci", DV_DULL 95 }; 96 #endif 97 98 #ifdef UHCI_DEBUG 99 uhci_softc_t *thesc; 100 #define DPRINTF(x) if (uhcidebug) printf x 101 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 102 int uhcidebug = 0; 103 int uhcinoloop = 0; 104 #ifndef __NetBSD__ 105 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 106 #endif 107 #else 108 #define DPRINTF(x) 109 #define DPRINTFN(n,x) 110 #endif 111 112 /* 113 * The UHCI controller is little endian, so on big endian machines 114 * the data strored in memory needs to be swapped. 115 */ 116 #if defined(__FreeBSD__) || defined(__OpenBSD__) 117 #if BYTE_ORDER == BIG_ENDIAN 118 #define htole32(x) (bswap32(x)) 119 #define le32toh(x) (bswap32(x)) 120 #else 121 #define htole32(x) (x) 122 #define le32toh(x) (x) 123 #endif 124 #endif 125 126 struct uhci_pipe { 127 struct usbd_pipe pipe; 128 int nexttoggle; 129 130 u_char aborting; 131 usbd_xfer_handle abortstart, abortend; 132 133 /* Info needed for different pipe kinds. */ 134 union { 135 /* Control pipe */ 136 struct { 137 uhci_soft_qh_t *sqh; 138 usb_dma_t reqdma; 139 uhci_soft_td_t *setup, *stat; 140 u_int length; 141 } ctl; 142 /* Interrupt pipe */ 143 struct { 144 int npoll; 145 uhci_soft_qh_t **qhs; 146 } intr; 147 /* Bulk pipe */ 148 struct { 149 uhci_soft_qh_t *sqh; 150 u_int length; 151 int isread; 152 } bulk; 153 /* Iso pipe */ 154 struct iso { 155 uhci_soft_td_t **stds; 156 int next, inuse; 157 } iso; 158 } u; 159 }; 160 161 Static void uhci_busreset(uhci_softc_t *); 162 Static void uhci_shutdown(void *v); 163 Static void uhci_power(int, void *); 164 Static usbd_status uhci_run(uhci_softc_t *, int run); 165 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 166 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 167 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 168 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 169 #if 0 170 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 171 uhci_intr_info_t *); 172 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 173 #endif 174 175 Static void uhci_free_std_chain(uhci_softc_t *, 176 uhci_soft_td_t *, uhci_soft_td_t *); 177 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 178 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 179 uhci_soft_td_t **, uhci_soft_td_t **); 180 Static void uhci_poll_hub(void *); 181 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 182 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 183 Static void uhci_idone(uhci_intr_info_t *); 184 185 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 186 187 Static void uhci_timeout(void *); 188 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 189 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 190 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 191 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 192 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 193 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 194 Static int uhci_str(usb_string_descriptor_t *, int, char *); 195 Static void uhci_add_loop(uhci_softc_t *sc); 196 Static void uhci_rem_loop(uhci_softc_t *sc); 197 198 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 199 Static void uhci_device_isoc_enter(usbd_xfer_handle); 200 201 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 202 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 203 204 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 205 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 206 207 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 208 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 209 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 210 Static void uhci_device_ctrl_close(usbd_pipe_handle); 211 Static void uhci_device_ctrl_done(usbd_xfer_handle); 212 213 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 215 Static void uhci_device_intr_abort(usbd_xfer_handle); 216 Static void uhci_device_intr_close(usbd_pipe_handle); 217 Static void uhci_device_intr_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 221 Static void uhci_device_bulk_abort(usbd_xfer_handle); 222 Static void uhci_device_bulk_close(usbd_pipe_handle); 223 Static void uhci_device_bulk_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 227 Static void uhci_device_isoc_abort(usbd_xfer_handle); 228 Static void uhci_device_isoc_close(usbd_pipe_handle); 229 Static void uhci_device_isoc_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 233 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 234 Static void uhci_root_ctrl_close(usbd_pipe_handle); 235 Static void uhci_root_ctrl_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 239 Static void uhci_root_intr_abort(usbd_xfer_handle); 240 Static void uhci_root_intr_close(usbd_pipe_handle); 241 Static void uhci_root_intr_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_open(usbd_pipe_handle); 244 Static void uhci_poll(struct usbd_bus *); 245 Static void uhci_softintr(void *); 246 247 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 248 249 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 250 Static void uhci_remove_intr(uhci_softc_t*, uhci_soft_qh_t*); 251 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 252 struct uhci_pipe *pipe, int ival); 253 254 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 255 Static void uhci_noop(usbd_pipe_handle pipe); 256 257 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 258 uhci_soft_qh_t *); 259 260 #ifdef UHCI_DEBUG 261 Static void uhci_dump_all(uhci_softc_t *); 262 Static void uhci_dumpregs(uhci_softc_t *); 263 Static void uhci_dump_qhs(uhci_soft_qh_t *); 264 Static void uhci_dump_qh(uhci_soft_qh_t *); 265 Static void uhci_dump_tds(uhci_soft_td_t *); 266 Static void uhci_dump_td(uhci_soft_td_t *); 267 Static void uhci_dump_ii(uhci_intr_info_t *ii); 268 void uhci_dump(void); 269 #endif 270 271 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 272 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 273 #define UWRITE1(sc, r, x) \ 274 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 275 #define UWRITE2(sc, r, x) \ 276 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 277 #define UWRITE4(sc, r, x) \ 278 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 279 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 280 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 281 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 282 283 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 284 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 285 286 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 287 288 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 289 290 #define UHCI_INTR_ENDPT 1 291 292 struct usbd_bus_methods uhci_bus_methods = { 293 uhci_open, 294 uhci_softintr, 295 uhci_poll, 296 uhci_allocm, 297 uhci_freem, 298 uhci_allocx, 299 uhci_freex, 300 }; 301 302 struct usbd_pipe_methods uhci_root_ctrl_methods = { 303 uhci_root_ctrl_transfer, 304 uhci_root_ctrl_start, 305 uhci_root_ctrl_abort, 306 uhci_root_ctrl_close, 307 uhci_noop, 308 uhci_root_ctrl_done, 309 }; 310 311 struct usbd_pipe_methods uhci_root_intr_methods = { 312 uhci_root_intr_transfer, 313 uhci_root_intr_start, 314 uhci_root_intr_abort, 315 uhci_root_intr_close, 316 uhci_noop, 317 uhci_root_intr_done, 318 }; 319 320 struct usbd_pipe_methods uhci_device_ctrl_methods = { 321 uhci_device_ctrl_transfer, 322 uhci_device_ctrl_start, 323 uhci_device_ctrl_abort, 324 uhci_device_ctrl_close, 325 uhci_noop, 326 uhci_device_ctrl_done, 327 }; 328 329 struct usbd_pipe_methods uhci_device_intr_methods = { 330 uhci_device_intr_transfer, 331 uhci_device_intr_start, 332 uhci_device_intr_abort, 333 uhci_device_intr_close, 334 uhci_device_clear_toggle, 335 uhci_device_intr_done, 336 }; 337 338 struct usbd_pipe_methods uhci_device_bulk_methods = { 339 uhci_device_bulk_transfer, 340 uhci_device_bulk_start, 341 uhci_device_bulk_abort, 342 uhci_device_bulk_close, 343 uhci_device_clear_toggle, 344 uhci_device_bulk_done, 345 }; 346 347 struct usbd_pipe_methods uhci_device_isoc_methods = { 348 uhci_device_isoc_transfer, 349 uhci_device_isoc_start, 350 uhci_device_isoc_abort, 351 uhci_device_isoc_close, 352 uhci_noop, 353 uhci_device_isoc_done, 354 }; 355 356 #define uhci_add_intr_info(sc, ii) \ 357 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 358 #define uhci_del_intr_info(ii) \ 359 LIST_REMOVE((ii), list) 360 361 Static __inline__ uhci_soft_qh_t * 362 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 363 { 364 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 365 366 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 367 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 368 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 369 printf("uhci_find_prev_qh: QH not found\n"); 370 return (NULL); 371 } 372 #endif 373 } 374 return (pqh); 375 } 376 377 void 378 uhci_busreset(uhci_softc_t *sc) 379 { 380 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 381 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 382 UHCICMD(sc, 0); /* do nothing */ 383 } 384 385 usbd_status 386 uhci_init(uhci_softc_t *sc) 387 { 388 usbd_status err; 389 int i, j; 390 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 391 uhci_soft_td_t *std; 392 393 DPRINTFN(1,("uhci_init: start\n")); 394 395 #ifdef UHCI_DEBUG 396 thesc = sc; 397 398 if (uhcidebug > 2) 399 uhci_dumpregs(sc); 400 #endif 401 402 uhci_run(sc, 0); /* stop the controller */ 403 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 404 405 uhci_busreset(sc); 406 407 /* Allocate and initialize real frame array. */ 408 err = usb_allocmem(&sc->sc_bus, 409 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 410 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 411 if (err) 412 return (err); 413 sc->sc_pframes = KERNADDR(&sc->sc_dma); 414 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 415 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 416 417 /* 418 * Allocate a TD, inactive, that hangs from the last QH. 419 * This is to avoid a bug in the PIIX that makes it run berserk 420 * otherwise. 421 */ 422 std = uhci_alloc_std(sc); 423 if (std == NULL) 424 return (USBD_NOMEM); 425 std->link.std = NULL; 426 std->td.td_link = htole32(UHCI_PTR_T); 427 std->td.td_status = htole32(0); /* inactive */ 428 std->td.td_token = htole32(0); 429 std->td.td_buffer = htole32(0); 430 431 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 432 lsqh = uhci_alloc_sqh(sc); 433 if (lsqh == NULL) 434 return (USBD_NOMEM); 435 lsqh->hlink = NULL; 436 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 437 lsqh->elink = std; 438 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 439 sc->sc_last_qh = lsqh; 440 441 /* Allocate the dummy QH where bulk traffic will be queued. */ 442 bsqh = uhci_alloc_sqh(sc); 443 if (bsqh == NULL) 444 return (USBD_NOMEM); 445 bsqh->hlink = lsqh; 446 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 447 bsqh->elink = NULL; 448 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 449 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 450 451 /* Allocate dummy QH where high speed control traffic will be queued. */ 452 chsqh = uhci_alloc_sqh(sc); 453 if (chsqh == NULL) 454 return (USBD_NOMEM); 455 chsqh->hlink = bsqh; 456 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 457 chsqh->elink = NULL; 458 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 459 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 460 461 /* Allocate dummy QH where control traffic will be queued. */ 462 clsqh = uhci_alloc_sqh(sc); 463 if (clsqh == NULL) 464 return (USBD_NOMEM); 465 clsqh->hlink = bsqh; 466 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 467 clsqh->elink = NULL; 468 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 469 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 470 471 /* 472 * Make all (virtual) frame list pointers point to the interrupt 473 * queue heads and the interrupt queue heads at the control 474 * queue head and point the physical frame list to the virtual. 475 */ 476 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 477 std = uhci_alloc_std(sc); 478 sqh = uhci_alloc_sqh(sc); 479 if (std == NULL || sqh == NULL) 480 return (USBD_NOMEM); 481 std->link.sqh = sqh; 482 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 483 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 484 std->td.td_token = htole32(0); 485 std->td.td_buffer = htole32(0); 486 sqh->hlink = clsqh; 487 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 488 sqh->elink = NULL; 489 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 490 sc->sc_vframes[i].htd = std; 491 sc->sc_vframes[i].etd = std; 492 sc->sc_vframes[i].hqh = sqh; 493 sc->sc_vframes[i].eqh = sqh; 494 for (j = i; 495 j < UHCI_FRAMELIST_COUNT; 496 j += UHCI_VFRAMELIST_COUNT) 497 sc->sc_pframes[j] = htole32(std->physaddr); 498 } 499 500 LIST_INIT(&sc->sc_intrhead); 501 502 SIMPLEQ_INIT(&sc->sc_free_xfers); 503 504 usb_callout_init(sc->sc_poll_handle); 505 506 /* Set up the bus struct. */ 507 sc->sc_bus.methods = &uhci_bus_methods; 508 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 509 510 #if defined(__NetBSD__) || defined(__OpenBSD__) 511 sc->sc_suspend = PWR_RESUME; 512 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 513 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 514 #endif 515 516 DPRINTFN(1,("uhci_init: enabling\n")); 517 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 518 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 519 520 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 521 522 return (uhci_run(sc, 1)); /* and here we go... */ 523 } 524 525 #if defined(__NetBSD__) || defined(__OpenBSD__) 526 int 527 uhci_activate(device_ptr_t self, enum devact act) 528 { 529 struct uhci_softc *sc = (struct uhci_softc *)self; 530 int rv = 0; 531 532 switch (act) { 533 case DVACT_ACTIVATE: 534 return (EOPNOTSUPP); 535 break; 536 537 case DVACT_DEACTIVATE: 538 if (sc->sc_child != NULL) 539 rv = config_deactivate(sc->sc_child); 540 break; 541 } 542 return (rv); 543 } 544 545 int 546 uhci_detach(struct uhci_softc *sc, int flags) 547 { 548 usbd_xfer_handle xfer; 549 int rv = 0; 550 551 if (sc->sc_child != NULL) 552 rv = config_detach(sc->sc_child, flags); 553 554 if (rv != 0) 555 return (rv); 556 557 #if defined(__NetBSD__) || defined(__OpenBSD__) 558 powerhook_disestablish(sc->sc_powerhook); 559 shutdownhook_disestablish(sc->sc_shutdownhook); 560 #endif 561 562 /* Free all xfers associated with this HC. */ 563 for (;;) { 564 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 565 if (xfer == NULL) 566 break; 567 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 568 free(xfer, M_USB); 569 } 570 571 /* XXX free other data structures XXX */ 572 573 return (rv); 574 } 575 #endif 576 577 usbd_status 578 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 579 { 580 struct uhci_softc *sc = (struct uhci_softc *)bus; 581 u_int32_t n; 582 583 /* 584 * XXX 585 * Since we are allocating a buffer we can assume that we will 586 * need TDs for it. Since we don't want to alolocate those from 587 * an interrupt context, we allocate them here and free them again. 588 * This is no guarantee that we'll get the TDs next time... 589 */ 590 n = size / 8; 591 if (n > 16) { 592 u_int32_t i; 593 uhci_soft_td_t **stds; 594 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 595 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, M_NOWAIT); 596 memset(stds, 0, sizeof(uhci_soft_td_t *) * n); 597 for(i=0; i < n; i++) 598 stds[i] = uhci_alloc_std(sc); 599 for(i=0; i < n; i++) 600 if (stds[i] != NULL) 601 uhci_free_std(sc, stds[i]); 602 free(stds, M_TEMP); 603 } 604 605 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 606 } 607 608 void 609 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 610 { 611 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 612 } 613 614 usbd_xfer_handle 615 uhci_allocx(struct usbd_bus *bus) 616 { 617 struct uhci_softc *sc = (struct uhci_softc *)bus; 618 usbd_xfer_handle xfer; 619 620 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 621 if (xfer != NULL) { 622 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 623 #ifdef DIAGNOSTIC 624 if (xfer->busy_free != XFER_FREE) { 625 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 626 xfer->busy_free); 627 } 628 #endif 629 } else { 630 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 631 } 632 if (xfer != NULL) { 633 memset(xfer, 0, sizeof (struct uhci_xfer)); 634 UXFER(xfer)->iinfo.sc = sc; 635 #ifdef DIAGNOSTIC 636 UXFER(xfer)->iinfo.isdone = 1; 637 #endif 638 } 639 #ifdef DIAGNOSTIC 640 xfer->busy_free = XFER_BUSY; 641 #endif 642 return (xfer); 643 } 644 645 void 646 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 647 { 648 struct uhci_softc *sc = (struct uhci_softc *)bus; 649 650 #ifdef DIAGNOSTIC 651 if (xfer->busy_free != XFER_BUSY) { 652 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 653 xfer->busy_free); 654 return; 655 } 656 xfer->busy_free = XFER_FREE; 657 if (!UXFER(xfer)->iinfo.isdone) { 658 printf("uhci_freex: !isdone\n"); 659 return; 660 } 661 #endif 662 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 663 } 664 665 /* 666 * Shut down the controller when the system is going down. 667 */ 668 void 669 uhci_shutdown(void *v) 670 { 671 uhci_softc_t *sc = v; 672 673 DPRINTF(("uhci_shutdown: stopping the HC\n")); 674 uhci_run(sc, 0); /* stop the controller */ 675 } 676 677 /* 678 * Handle suspend/resume. 679 * 680 * We need to switch to polling mode here, because this routine is 681 * called from an interrupt context. This is all right since we 682 * are almost suspended anyway. 683 */ 684 void 685 uhci_power(int why, void *v) 686 { 687 uhci_softc_t *sc = v; 688 int cmd; 689 int s; 690 691 s = splhardusb(); 692 cmd = UREAD2(sc, UHCI_CMD); 693 694 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 695 sc, why, sc->sc_suspend, cmd)); 696 697 switch (why) { 698 case PWR_SUSPEND: 699 case PWR_STANDBY: 700 #ifdef UHCI_DEBUG 701 if (uhcidebug > 2) 702 uhci_dumpregs(sc); 703 #endif 704 if (sc->sc_intr_xfer != NULL) 705 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 706 sc->sc_intr_xfer); 707 sc->sc_bus.use_polling++; 708 uhci_run(sc, 0); /* stop the controller */ 709 710 /* save some state if BIOS doesn't */ 711 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 712 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 713 714 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 715 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 716 sc->sc_suspend = why; 717 sc->sc_bus.use_polling--; 718 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 719 break; 720 case PWR_RESUME: 721 #ifdef DIAGNOSTIC 722 if (sc->sc_suspend == PWR_RESUME) 723 printf("uhci_power: weird, resume without suspend.\n"); 724 #endif 725 sc->sc_bus.use_polling++; 726 sc->sc_suspend = why; 727 if (cmd & UHCI_CMD_RS) 728 uhci_run(sc, 0); /* in case BIOS has started it */ 729 730 /* restore saved state */ 731 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 732 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 733 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 734 735 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 736 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 737 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 738 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 739 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 740 uhci_run(sc, 1); /* and start traffic again */ 741 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 742 sc->sc_bus.use_polling--; 743 if (sc->sc_intr_xfer != NULL) 744 usb_callout(sc->sc_poll_handle, sc->sc_ival, 745 uhci_poll_hub, sc->sc_intr_xfer); 746 #ifdef UHCI_DEBUG 747 if (uhcidebug > 2) 748 uhci_dumpregs(sc); 749 #endif 750 break; 751 case PWR_SOFTSUSPEND: 752 case PWR_SOFTSTANDBY: 753 case PWR_SOFTRESUME: 754 break; 755 } 756 splx(s); 757 } 758 759 #ifdef UHCI_DEBUG 760 Static void 761 uhci_dumpregs(uhci_softc_t *sc) 762 { 763 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 764 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 765 USBDEVNAME(sc->sc_bus.bdev), 766 UREAD2(sc, UHCI_CMD), 767 UREAD2(sc, UHCI_STS), 768 UREAD2(sc, UHCI_INTR), 769 UREAD2(sc, UHCI_FRNUM), 770 UREAD4(sc, UHCI_FLBASEADDR), 771 UREAD1(sc, UHCI_SOF), 772 UREAD2(sc, UHCI_PORTSC1), 773 UREAD2(sc, UHCI_PORTSC2))); 774 } 775 776 void 777 uhci_dump_td(uhci_soft_td_t *p) 778 { 779 char sbuf[128], sbuf2[128]; 780 781 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 782 "token=0x%08lx buffer=0x%08lx\n", 783 p, (long)p->physaddr, 784 (long)le32toh(p->td.td_link), 785 (long)le32toh(p->td.td_status), 786 (long)le32toh(p->td.td_token), 787 (long)le32toh(p->td.td_buffer))); 788 789 bitmask_snprintf((int)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 790 sbuf, sizeof(sbuf)); 791 bitmask_snprintf((int)le32toh(p->td.td_status), 792 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 793 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 794 sbuf2, sizeof(sbuf2)); 795 796 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 797 "D=%d,maxlen=%d\n", sbuf, sbuf2, 798 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 799 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 800 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 801 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 802 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 803 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 804 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 805 } 806 807 void 808 uhci_dump_qh(uhci_soft_qh_t *sqh) 809 { 810 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 811 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 812 le32toh(sqh->qh.qh_elink))); 813 } 814 815 816 #if 1 817 void 818 uhci_dump(void) 819 { 820 uhci_dump_all(thesc); 821 } 822 #endif 823 824 void 825 uhci_dump_all(uhci_softc_t *sc) 826 { 827 uhci_dumpregs(sc); 828 printf("intrs=%d\n", sc->sc_bus.no_intrs); 829 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 830 uhci_dump_qh(sc->sc_lctl_start); 831 } 832 833 834 void 835 uhci_dump_qhs(uhci_soft_qh_t *sqh) 836 { 837 uhci_dump_qh(sqh); 838 839 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 840 * Traverses sideways first, then down. 841 * 842 * QH1 843 * QH2 844 * No QH 845 * TD2.1 846 * TD2.2 847 * TD1.1 848 * etc. 849 * 850 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 851 */ 852 853 854 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 855 uhci_dump_qhs(sqh->hlink); 856 else 857 DPRINTF(("No QH\n")); 858 859 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 860 uhci_dump_tds(sqh->elink); 861 else 862 DPRINTF(("No TD\n")); 863 } 864 865 void 866 uhci_dump_tds(uhci_soft_td_t *std) 867 { 868 uhci_soft_td_t *td; 869 870 for(td = std; td != NULL; td = td->link.std) { 871 uhci_dump_td(td); 872 873 /* Check whether the link pointer in this TD marks 874 * the link pointer as end of queue. This avoids 875 * printing the free list in case the queue/TD has 876 * already been moved there (seatbelt). 877 */ 878 if (le32toh(td->td.td_link) & UHCI_PTR_T || 879 le32toh(td->td.td_link) == 0) 880 break; 881 } 882 } 883 884 Static void 885 uhci_dump_ii(uhci_intr_info_t *ii) 886 { 887 usbd_pipe_handle pipe; 888 usb_endpoint_descriptor_t *ed; 889 usbd_device_handle dev; 890 891 #ifdef DIAGNOSTIC 892 #define DONE ii->isdone 893 #else 894 #define DONE 0 895 #endif 896 if (ii == NULL) { 897 printf("ii NULL\n"); 898 return; 899 } 900 if (ii->xfer == NULL) { 901 printf("ii %p: done=%d xfer=NULL\n", 902 ii, DONE); 903 return; 904 } 905 pipe = ii->xfer->pipe; 906 if (pipe == NULL) { 907 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 908 ii, DONE, ii->xfer); 909 return; 910 } 911 ed = pipe->endpoint->edesc; 912 dev = pipe->device; 913 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", 914 ii, DONE, ii->xfer, dev, 915 UGETW(dev->ddesc.idVendor), 916 UGETW(dev->ddesc.idProduct), 917 dev->address, pipe, 918 ed->bEndpointAddress, ed->bmAttributes); 919 #undef DONE 920 } 921 922 void uhci_dump_iis(struct uhci_softc *sc); 923 void 924 uhci_dump_iis(struct uhci_softc *sc) 925 { 926 uhci_intr_info_t *ii; 927 928 printf("intr_info list:\n"); 929 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 930 uhci_dump_ii(ii); 931 } 932 933 void iidump(void); 934 void iidump(void) { uhci_dump_iis(thesc); } 935 936 #endif 937 938 /* 939 * This routine is executed periodically and simulates interrupts 940 * from the root controller interrupt pipe for port status change. 941 */ 942 void 943 uhci_poll_hub(void *addr) 944 { 945 usbd_xfer_handle xfer = addr; 946 usbd_pipe_handle pipe = xfer->pipe; 947 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 948 int s; 949 u_char *p; 950 951 DPRINTFN(20, ("uhci_poll_hub\n")); 952 953 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 954 955 p = KERNADDR(&xfer->dmabuf); 956 p[0] = 0; 957 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 958 p[0] |= 1<<1; 959 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 960 p[0] |= 1<<2; 961 if (p[0] == 0) 962 /* No change, try again in a while */ 963 return; 964 965 xfer->actlen = 1; 966 xfer->status = USBD_NORMAL_COMPLETION; 967 s = splusb(); 968 xfer->device->bus->intr_context++; 969 usb_transfer_complete(xfer); 970 xfer->device->bus->intr_context--; 971 splx(s); 972 } 973 974 void 975 uhci_root_intr_done(usbd_xfer_handle xfer) 976 { 977 } 978 979 void 980 uhci_root_ctrl_done(usbd_xfer_handle xfer) 981 { 982 } 983 984 /* 985 * Let the last QH loop back to the high speed control transfer QH. 986 * This is what intel calls "bandwidth reclamation" and improves 987 * USB performance a lot for some devices. 988 * If we are already looping, just count it. 989 */ 990 void 991 uhci_add_loop(uhci_softc_t *sc) { 992 #ifdef UHCI_DEBUG 993 if (uhcinoloop) 994 return; 995 #endif 996 if (++sc->sc_loops == 1) { 997 DPRINTFN(5,("uhci_start_loop: add\n")); 998 /* Note, we don't loop back the soft pointer. */ 999 sc->sc_last_qh->qh.qh_hlink = 1000 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1001 } 1002 } 1003 1004 void 1005 uhci_rem_loop(uhci_softc_t *sc) { 1006 #ifdef UHCI_DEBUG 1007 if (uhcinoloop) 1008 return; 1009 #endif 1010 if (--sc->sc_loops == 0) { 1011 DPRINTFN(5,("uhci_end_loop: remove\n")); 1012 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1013 } 1014 } 1015 1016 /* Add high speed control QH, called at splusb(). */ 1017 void 1018 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1019 { 1020 uhci_soft_qh_t *eqh; 1021 1022 SPLUSBCHECK; 1023 1024 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1025 eqh = sc->sc_hctl_end; 1026 sqh->hlink = eqh->hlink; 1027 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1028 eqh->hlink = sqh; 1029 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1030 sc->sc_hctl_end = sqh; 1031 #ifdef UHCI_CTL_LOOP 1032 uhci_add_loop(sc); 1033 #endif 1034 } 1035 1036 /* Remove high speed control QH, called at splusb(). */ 1037 void 1038 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1039 { 1040 uhci_soft_qh_t *pqh; 1041 1042 SPLUSBCHECK; 1043 1044 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1045 #ifdef UHCI_CTL_LOOP 1046 uhci_rem_loop(sc); 1047 #endif 1048 /* 1049 * The T bit should be set in the elink of the QH so that the HC 1050 * doesn't follow the pointer. This condition may fail if the 1051 * the transferred packet was short so that the QH still points 1052 * at the last used TD. 1053 * In this case we set the T bit and wait a little for the HC 1054 * to stop looking at the TD. 1055 */ 1056 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1057 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1058 delay(UHCI_QH_REMOVE_DELAY); 1059 } 1060 1061 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1062 pqh->hlink = sqh->hlink; 1063 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1064 delay(UHCI_QH_REMOVE_DELAY); 1065 if (sc->sc_hctl_end == sqh) 1066 sc->sc_hctl_end = pqh; 1067 } 1068 1069 /* Add low speed control QH, called at splusb(). */ 1070 void 1071 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1072 { 1073 uhci_soft_qh_t *eqh; 1074 1075 SPLUSBCHECK; 1076 1077 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1078 eqh = sc->sc_lctl_end; 1079 sqh->hlink = eqh->hlink; 1080 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1081 eqh->hlink = sqh; 1082 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1083 sc->sc_lctl_end = sqh; 1084 } 1085 1086 /* Remove low speed control QH, called at splusb(). */ 1087 void 1088 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1089 { 1090 uhci_soft_qh_t *pqh; 1091 1092 SPLUSBCHECK; 1093 1094 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1095 /* See comment in uhci_remove_hs_ctrl() */ 1096 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1097 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1098 delay(UHCI_QH_REMOVE_DELAY); 1099 } 1100 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1101 pqh->hlink = sqh->hlink; 1102 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1103 delay(UHCI_QH_REMOVE_DELAY); 1104 if (sc->sc_lctl_end == sqh) 1105 sc->sc_lctl_end = pqh; 1106 } 1107 1108 /* Add bulk QH, called at splusb(). */ 1109 void 1110 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1111 { 1112 uhci_soft_qh_t *eqh; 1113 1114 SPLUSBCHECK; 1115 1116 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1117 eqh = sc->sc_bulk_end; 1118 sqh->hlink = eqh->hlink; 1119 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1120 eqh->hlink = sqh; 1121 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1122 sc->sc_bulk_end = sqh; 1123 uhci_add_loop(sc); 1124 } 1125 1126 /* Remove bulk QH, called at splusb(). */ 1127 void 1128 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1129 { 1130 uhci_soft_qh_t *pqh; 1131 1132 SPLUSBCHECK; 1133 1134 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1135 uhci_rem_loop(sc); 1136 /* See comment in uhci_remove_hs_ctrl() */ 1137 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1138 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1139 delay(UHCI_QH_REMOVE_DELAY); 1140 } 1141 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1142 pqh->hlink = sqh->hlink; 1143 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1144 delay(UHCI_QH_REMOVE_DELAY); 1145 if (sc->sc_bulk_end == sqh) 1146 sc->sc_bulk_end = pqh; 1147 } 1148 1149 int 1150 uhci_intr(void *arg) 1151 { 1152 uhci_softc_t *sc = arg; 1153 int status; 1154 int ack; 1155 1156 #ifdef UHCI_DEBUG 1157 if (uhcidebug > 15) { 1158 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 1159 uhci_dumpregs(sc); 1160 } 1161 #endif 1162 1163 status = UREAD2(sc, UHCI_STS); 1164 if (status == 0) /* The interrupt was not for us. */ 1165 return (0); 1166 1167 if (sc->sc_suspend != PWR_RESUME) { 1168 printf("%s: interrupt while not operating ignored\n", 1169 USBDEVNAME(sc->sc_bus.bdev)); 1170 return (0); 1171 } 1172 1173 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1174 if (sc->sc_suspend != PWR_RESUME) 1175 printf("uhci_intr: suspended sts=0x%x\n", status); 1176 #endif 1177 1178 ack = 0; 1179 if (status & UHCI_STS_USBINT) 1180 ack |= UHCI_STS_USBINT; 1181 if (status & UHCI_STS_USBEI) 1182 ack |= UHCI_STS_USBEI; 1183 if (status & UHCI_STS_RD) { 1184 ack |= UHCI_STS_RD; 1185 #ifdef UHCI_DEBUG 1186 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1187 #endif 1188 } 1189 if (status & UHCI_STS_HSE) { 1190 ack |= UHCI_STS_HSE; 1191 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1192 } 1193 if (status & UHCI_STS_HCPE) { 1194 ack |= UHCI_STS_HCPE; 1195 printf("%s: host controller process error\n", 1196 USBDEVNAME(sc->sc_bus.bdev)); 1197 } 1198 if (status & UHCI_STS_HCH) { 1199 /* no acknowledge needed */ 1200 if (!sc->sc_dying) 1201 printf("%s: host controller halted\n", 1202 USBDEVNAME(sc->sc_bus.bdev)); 1203 sc->sc_dying = 1; 1204 #ifdef UHCI_DEBUG 1205 uhci_dump_all(sc); 1206 #endif 1207 1208 } 1209 1210 if (!ack) 1211 return (0); /* nothing to acknowledge */ 1212 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1213 1214 sc->sc_bus.no_intrs++; 1215 usb_schedsoftintr(&sc->sc_bus); 1216 1217 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1218 1219 return (1); 1220 } 1221 1222 void 1223 uhci_softintr(void *v) 1224 { 1225 uhci_softc_t *sc = v; 1226 uhci_intr_info_t *ii; 1227 1228 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1229 1230 sc->sc_bus.intr_context++; 1231 1232 /* 1233 * Interrupts on UHCI really suck. When the host controller 1234 * interrupts because a transfer is completed there is no 1235 * way of knowing which transfer it was. You can scan down 1236 * the TDs and QHs of the previous frame to limit the search, 1237 * but that assumes that the interrupt was not delayed by more 1238 * than 1 ms, which may not always be true (e.g. after debug 1239 * output on a slow console). 1240 * We scan all interrupt descriptors to see if any have 1241 * completed. 1242 */ 1243 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1244 uhci_check_intr(sc, ii); 1245 1246 sc->sc_bus.intr_context--; 1247 } 1248 1249 /* Check for an interrupt. */ 1250 void 1251 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1252 { 1253 uhci_soft_td_t *std, *lstd; 1254 u_int32_t status; 1255 1256 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1257 #ifdef DIAGNOSTIC 1258 if (ii == NULL) { 1259 printf("uhci_check_intr: no ii? %p\n", ii); 1260 return; 1261 } 1262 #endif 1263 if (ii->stdstart == NULL) 1264 return; 1265 lstd = ii->stdend; 1266 #ifdef DIAGNOSTIC 1267 if (lstd == NULL) { 1268 printf("uhci_check_intr: std==0\n"); 1269 return; 1270 } 1271 #endif 1272 /* 1273 * If the last TD is still active we need to check whether there 1274 * is a an error somewhere in the middle, or whether there was a 1275 * short packet (SPD and not ACTIVE). 1276 */ 1277 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1278 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1279 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1280 status = le32toh(std->td.td_status); 1281 /* If there's an active TD the xfer isn't done. */ 1282 if (status & UHCI_TD_ACTIVE) 1283 break; 1284 /* Any kind of error makes the xfer done. */ 1285 if (status & UHCI_TD_STALLED) 1286 goto done; 1287 /* We want short packets, and it is short: it's done */ 1288 if ((status & UHCI_TD_SPD) && 1289 UHCI_TD_GET_ACTLEN(status) < 1290 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1291 goto done; 1292 } 1293 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1294 ii, ii->stdstart)); 1295 return; 1296 } 1297 done: 1298 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1299 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1300 uhci_idone(ii); 1301 } 1302 1303 /* Called at splusb() */ 1304 void 1305 uhci_idone(uhci_intr_info_t *ii) 1306 { 1307 usbd_xfer_handle xfer = ii->xfer; 1308 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1309 uhci_soft_td_t *std; 1310 u_int32_t status = 0, nstatus; 1311 int actlen; 1312 1313 #ifdef DIAGNOSTIC 1314 { 1315 int s = splhigh(); 1316 if (ii->isdone) { 1317 splx(s); 1318 #ifdef UHCI_DEBUG 1319 printf("uhci_idone: ii is done!\n "); 1320 uhci_dump_ii(ii); 1321 #else 1322 printf("uhci_idone: ii=%p is done!\n", ii); 1323 #endif 1324 return; 1325 } 1326 ii->isdone = 1; 1327 splx(s); 1328 } 1329 #endif 1330 1331 if (xfer->status == USBD_CANCELLED || 1332 xfer->status == USBD_TIMEOUT) { 1333 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1334 return; 1335 } 1336 1337 if (xfer->nframes != 0) { 1338 /* Isoc transfer, do things differently. */ 1339 uhci_soft_td_t **stds = upipe->u.iso.stds; 1340 int i, n, nframes, len; 1341 1342 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1343 1344 nframes = xfer->nframes; 1345 actlen = 0; 1346 n = UXFER(xfer)->curframe; 1347 for (i = 0; i < nframes; i++) { 1348 std = stds[n]; 1349 #ifdef UHCI_DEBUG 1350 if (uhcidebug > 5) { 1351 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1352 uhci_dump_td(std); 1353 } 1354 #endif 1355 if (++n >= UHCI_VFRAMELIST_COUNT) 1356 n = 0; 1357 status = le32toh(std->td.td_status); 1358 len = UHCI_TD_GET_ACTLEN(status); 1359 xfer->frlengths[i] = len; 1360 actlen += len; 1361 } 1362 upipe->u.iso.inuse -= nframes; 1363 xfer->actlen = actlen; 1364 xfer->status = USBD_NORMAL_COMPLETION; 1365 usb_transfer_complete(xfer); 1366 return; 1367 } 1368 1369 #ifdef UHCI_DEBUG 1370 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1371 ii, xfer, upipe)); 1372 if (uhcidebug > 10) 1373 uhci_dump_tds(ii->stdstart); 1374 #endif 1375 1376 /* The transfer is done, compute actual length and status. */ 1377 actlen = 0; 1378 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1379 nstatus = le32toh(std->td.td_status); 1380 if (nstatus & UHCI_TD_ACTIVE) 1381 break; 1382 1383 status = nstatus; 1384 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1385 UHCI_TD_PID_SETUP) 1386 actlen += UHCI_TD_GET_ACTLEN(status); 1387 } 1388 /* If there are left over TDs we need to update the toggle. */ 1389 if (std != NULL) 1390 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1391 1392 status &= UHCI_TD_ERROR; 1393 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1394 actlen, status)); 1395 xfer->actlen = actlen; 1396 if (status != 0) { 1397 #ifdef UHCI_DEBUG 1398 char sbuf[128]; 1399 1400 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1401 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1402 sbuf, sizeof(sbuf)); 1403 1404 DPRINTFN((status == UHCI_TD_STALLED)*10, 1405 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1406 "status 0x%s\n", 1407 xfer->pipe->device->address, 1408 xfer->pipe->endpoint->edesc->bEndpointAddress, 1409 sbuf)); 1410 #endif 1411 1412 if (status == UHCI_TD_STALLED) 1413 xfer->status = USBD_STALLED; 1414 else 1415 xfer->status = USBD_IOERROR; /* more info XXX */ 1416 } else { 1417 xfer->status = USBD_NORMAL_COMPLETION; 1418 } 1419 usb_transfer_complete(xfer); 1420 } 1421 1422 /* 1423 * Called when a request does not complete. 1424 */ 1425 void 1426 uhci_timeout(void *addr) 1427 { 1428 uhci_intr_info_t *ii = addr; 1429 1430 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1431 1432 #ifdef UHCI_DEBUG 1433 if (uhcidebug > 10) 1434 uhci_dump_tds(ii->stdstart); 1435 #endif 1436 1437 ii->xfer->device->bus->intr_context++; 1438 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1439 ii->xfer->device->bus->intr_context--; 1440 } 1441 1442 /* 1443 * Wait here until controller claims to have an interrupt. 1444 * Then call uhci_intr and return. Use timeout to avoid waiting 1445 * too long. 1446 * Only used during boot when interrupts are not enabled yet. 1447 */ 1448 void 1449 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1450 { 1451 int timo = xfer->timeout; 1452 uhci_intr_info_t *ii; 1453 1454 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1455 1456 xfer->status = USBD_IN_PROGRESS; 1457 for (; timo >= 0; timo--) { 1458 usb_delay_ms(&sc->sc_bus, 1); 1459 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1460 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1461 uhci_intr(sc); 1462 if (xfer->status != USBD_IN_PROGRESS) 1463 return; 1464 } 1465 } 1466 1467 /* Timeout */ 1468 DPRINTF(("uhci_waitintr: timeout\n")); 1469 for (ii = LIST_FIRST(&sc->sc_intrhead); 1470 ii != NULL && ii->xfer != xfer; 1471 ii = LIST_NEXT(ii, list)) 1472 ; 1473 #ifdef DIAGNOSTIC 1474 if (ii == NULL) 1475 panic("uhci_waitintr: lost intr_info\n"); 1476 #endif 1477 uhci_idone(ii); 1478 } 1479 1480 void 1481 uhci_poll(struct usbd_bus *bus) 1482 { 1483 uhci_softc_t *sc = (uhci_softc_t *)bus; 1484 1485 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1486 uhci_intr(sc); 1487 } 1488 1489 #if 0 1490 void 1491 uhci_reset(uhci_softc_t *sc) 1492 { 1493 int n; 1494 1495 UHCICMD(sc, UHCI_CMD_HCRESET); 1496 /* The reset bit goes low when the controller is done. */ 1497 for (n = 0; n < UHCI_RESET_TIMEOUT && 1498 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1499 usb_delay_ms(&sc->sc_bus, 1); 1500 if (n >= UHCI_RESET_TIMEOUT) 1501 printf("%s: controller did not reset\n", 1502 USBDEVNAME(sc->sc_bus.bdev)); 1503 } 1504 #endif 1505 1506 usbd_status 1507 uhci_run(uhci_softc_t *sc, int run) 1508 { 1509 int s, n, running; 1510 u_int16_t cmd; 1511 1512 run = run != 0; 1513 s = splhardusb(); 1514 DPRINTF(("uhci_run: setting run=%d\n", run)); 1515 cmd = UREAD2(sc, UHCI_CMD); 1516 if (run) 1517 cmd |= UHCI_CMD_RS; 1518 else 1519 cmd &= ~UHCI_CMD_RS; 1520 UHCICMD(sc, cmd); 1521 for(n = 0; n < 10; n++) { 1522 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1523 /* return when we've entered the state we want */ 1524 if (run == running) { 1525 splx(s); 1526 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1527 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1528 return (USBD_NORMAL_COMPLETION); 1529 } 1530 usb_delay_ms(&sc->sc_bus, 1); 1531 } 1532 splx(s); 1533 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1534 run ? "start" : "stop"); 1535 return (USBD_IOERROR); 1536 } 1537 1538 /* 1539 * Memory management routines. 1540 * uhci_alloc_std allocates TDs 1541 * uhci_alloc_sqh allocates QHs 1542 * These two routines do their own free list management, 1543 * partly for speed, partly because allocating DMAable memory 1544 * has page size granularaity so much memory would be wasted if 1545 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1546 */ 1547 1548 uhci_soft_td_t * 1549 uhci_alloc_std(uhci_softc_t *sc) 1550 { 1551 uhci_soft_td_t *std; 1552 usbd_status err; 1553 int i, offs; 1554 usb_dma_t dma; 1555 1556 if (sc->sc_freetds == NULL) { 1557 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1558 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1559 UHCI_TD_ALIGN, &dma); 1560 if (err) 1561 return (0); 1562 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1563 offs = i * UHCI_STD_SIZE; 1564 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1565 std->physaddr = DMAADDR(&dma) + offs; 1566 std->link.std = sc->sc_freetds; 1567 sc->sc_freetds = std; 1568 } 1569 } 1570 std = sc->sc_freetds; 1571 sc->sc_freetds = std->link.std; 1572 memset(&std->td, 0, sizeof(uhci_td_t)); 1573 return std; 1574 } 1575 1576 void 1577 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1578 { 1579 #ifdef DIAGNOSTIC 1580 #define TD_IS_FREE 0x12345678 1581 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1582 printf("uhci_free_std: freeing free TD %p\n", std); 1583 return; 1584 } 1585 std->td.td_token = htole32(TD_IS_FREE); 1586 #endif 1587 std->link.std = sc->sc_freetds; 1588 sc->sc_freetds = std; 1589 } 1590 1591 uhci_soft_qh_t * 1592 uhci_alloc_sqh(uhci_softc_t *sc) 1593 { 1594 uhci_soft_qh_t *sqh; 1595 usbd_status err; 1596 int i, offs; 1597 usb_dma_t dma; 1598 1599 if (sc->sc_freeqhs == NULL) { 1600 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1601 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1602 UHCI_QH_ALIGN, &dma); 1603 if (err) 1604 return (0); 1605 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1606 offs = i * UHCI_SQH_SIZE; 1607 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1608 sqh->physaddr = DMAADDR(&dma) + offs; 1609 sqh->hlink = sc->sc_freeqhs; 1610 sc->sc_freeqhs = sqh; 1611 } 1612 } 1613 sqh = sc->sc_freeqhs; 1614 sc->sc_freeqhs = sqh->hlink; 1615 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1616 return (sqh); 1617 } 1618 1619 void 1620 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1621 { 1622 sqh->hlink = sc->sc_freeqhs; 1623 sc->sc_freeqhs = sqh; 1624 } 1625 1626 void 1627 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1628 uhci_soft_td_t *stdend) 1629 { 1630 uhci_soft_td_t *p; 1631 1632 for (; std != stdend; std = p) { 1633 p = std->link.std; 1634 uhci_free_std(sc, std); 1635 } 1636 } 1637 1638 usbd_status 1639 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1640 int rd, u_int16_t flags, usb_dma_t *dma, 1641 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1642 { 1643 uhci_soft_td_t *p, *lastp; 1644 uhci_physaddr_t lastlink; 1645 int i, ntd, l, tog, maxp; 1646 u_int32_t status; 1647 int addr = upipe->pipe.device->address; 1648 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1649 1650 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1651 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1652 upipe->pipe.device->lowspeed, flags)); 1653 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1654 if (maxp == 0) { 1655 printf("uhci_alloc_std_chain: maxp=0\n"); 1656 return (USBD_INVAL); 1657 } 1658 ntd = (len + maxp - 1) / maxp; 1659 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1660 ntd++; 1661 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1662 if (ntd == 0) { 1663 *sp = *ep = 0; 1664 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1665 return (USBD_NORMAL_COMPLETION); 1666 } 1667 tog = upipe->nexttoggle; 1668 if (ntd % 2 == 0) 1669 tog ^= 1; 1670 upipe->nexttoggle = tog ^ 1; 1671 lastp = NULL; 1672 lastlink = UHCI_PTR_T; 1673 ntd--; 1674 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1675 if (upipe->pipe.device->lowspeed) 1676 status |= UHCI_TD_LS; 1677 if (flags & USBD_SHORT_XFER_OK) 1678 status |= UHCI_TD_SPD; 1679 for (i = ntd; i >= 0; i--) { 1680 p = uhci_alloc_std(sc); 1681 if (p == NULL) { 1682 uhci_free_std_chain(sc, lastp, 0); 1683 return (USBD_NOMEM); 1684 } 1685 p->link.std = lastp; 1686 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1687 lastp = p; 1688 lastlink = p->physaddr; 1689 p->td.td_status = htole32(status); 1690 if (i == ntd) { 1691 /* last TD */ 1692 l = len % maxp; 1693 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1694 l = maxp; 1695 *ep = p; 1696 } else 1697 l = maxp; 1698 p->td.td_token = 1699 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1700 UHCI_TD_OUT(l, endpt, addr, tog)); 1701 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1702 tog ^= 1; 1703 } 1704 *sp = lastp; 1705 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1706 upipe->nexttoggle)); 1707 return (USBD_NORMAL_COMPLETION); 1708 } 1709 1710 void 1711 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1712 { 1713 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1714 upipe->nexttoggle = 0; 1715 } 1716 1717 void 1718 uhci_noop(usbd_pipe_handle pipe) 1719 { 1720 } 1721 1722 usbd_status 1723 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1724 { 1725 usbd_status err; 1726 1727 /* Insert last in queue. */ 1728 err = usb_insert_transfer(xfer); 1729 if (err) 1730 return (err); 1731 1732 /* 1733 * Pipe isn't running (otherwise err would be USBD_INPROG), 1734 * so start it first. 1735 */ 1736 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1737 } 1738 1739 usbd_status 1740 uhci_device_bulk_start(usbd_xfer_handle xfer) 1741 { 1742 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1743 usbd_device_handle dev = upipe->pipe.device; 1744 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1745 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1746 uhci_soft_td_t *data, *dataend; 1747 uhci_soft_qh_t *sqh; 1748 usbd_status err; 1749 int len, isread, endpt; 1750 int s; 1751 1752 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1753 xfer, xfer->length, xfer->flags)); 1754 1755 if (sc->sc_dying) 1756 return (USBD_IOERROR); 1757 1758 #ifdef DIAGNOSTIC 1759 if (xfer->rqflags & URQ_REQUEST) 1760 panic("uhci_device_bulk_transfer: a request\n"); 1761 #endif 1762 1763 len = xfer->length; 1764 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1765 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1766 sqh = upipe->u.bulk.sqh; 1767 1768 upipe->u.bulk.isread = isread; 1769 upipe->u.bulk.length = len; 1770 1771 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1772 &xfer->dmabuf, &data, &dataend); 1773 if (err) 1774 return (err); 1775 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1776 1777 #ifdef UHCI_DEBUG 1778 if (uhcidebug > 8) { 1779 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1780 uhci_dump_tds(data); 1781 } 1782 #endif 1783 1784 /* Set up interrupt info. */ 1785 ii->xfer = xfer; 1786 ii->stdstart = data; 1787 ii->stdend = dataend; 1788 #ifdef DIAGNOSTIC 1789 if (!ii->isdone) { 1790 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1791 } 1792 ii->isdone = 0; 1793 #endif 1794 1795 sqh->elink = data; 1796 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1797 1798 s = splusb(); 1799 uhci_add_bulk(sc, sqh); 1800 uhci_add_intr_info(sc, ii); 1801 1802 if (xfer->timeout && !sc->sc_bus.use_polling) { 1803 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1804 uhci_timeout, ii); 1805 } 1806 xfer->status = USBD_IN_PROGRESS; 1807 splx(s); 1808 1809 #ifdef UHCI_DEBUG 1810 if (uhcidebug > 10) { 1811 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1812 uhci_dump_tds(data); 1813 } 1814 #endif 1815 1816 if (sc->sc_bus.use_polling) 1817 uhci_waitintr(sc, xfer); 1818 1819 return (USBD_IN_PROGRESS); 1820 } 1821 1822 /* Abort a device bulk request. */ 1823 void 1824 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1825 { 1826 DPRINTF(("uhci_device_bulk_abort:\n")); 1827 uhci_abort_xfer(xfer, USBD_CANCELLED); 1828 } 1829 1830 /* 1831 * XXX This way of aborting is neither safe, nor good. 1832 * But it will have to do until I figure out what to do. 1833 * I apologize for the delay(). 1834 */ 1835 void 1836 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1837 { 1838 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1839 uhci_soft_td_t *std; 1840 int s; 1841 1842 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1843 1844 s = splusb(); 1845 1846 /* Transfer is already done. */ 1847 if (xfer->status != USBD_NOT_STARTED && 1848 xfer->status != USBD_IN_PROGRESS) { 1849 splx(s); 1850 return; 1851 } 1852 1853 /* Make interrupt routine ignore it, */ 1854 xfer->status = status; 1855 1856 /* don't timeout, */ 1857 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1858 1859 /* make hardware ignore it, */ 1860 for (std = ii->stdstart; std != NULL; std = std->link.std) 1861 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1862 1863 xfer->hcpriv = ii; 1864 1865 splx(s); 1866 1867 delay(1000); 1868 1869 s = splusb(); 1870 #ifdef DIAGNOSTIC 1871 ii->isdone = 1; 1872 #endif 1873 usb_transfer_complete(xfer); 1874 splx(s); 1875 } 1876 1877 /* Close a device bulk pipe. */ 1878 void 1879 uhci_device_bulk_close(usbd_pipe_handle pipe) 1880 { 1881 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1882 usbd_device_handle dev = upipe->pipe.device; 1883 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1884 1885 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1886 } 1887 1888 usbd_status 1889 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1890 { 1891 usbd_status err; 1892 1893 /* Insert last in queue. */ 1894 err = usb_insert_transfer(xfer); 1895 if (err) 1896 return (err); 1897 1898 /* 1899 * Pipe isn't running (otherwise err would be USBD_INPROG), 1900 * so start it first. 1901 */ 1902 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1903 } 1904 1905 usbd_status 1906 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1907 { 1908 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1909 usbd_status err; 1910 1911 if (sc->sc_dying) 1912 return (USBD_IOERROR); 1913 1914 #ifdef DIAGNOSTIC 1915 if (!(xfer->rqflags & URQ_REQUEST)) 1916 panic("uhci_device_ctrl_transfer: not a request\n"); 1917 #endif 1918 1919 err = uhci_device_request(xfer); 1920 if (err) 1921 return (err); 1922 1923 if (sc->sc_bus.use_polling) 1924 uhci_waitintr(sc, xfer); 1925 return (USBD_IN_PROGRESS); 1926 } 1927 1928 usbd_status 1929 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1930 { 1931 usbd_status err; 1932 1933 /* Insert last in queue. */ 1934 err = usb_insert_transfer(xfer); 1935 if (err) 1936 return (err); 1937 1938 /* 1939 * Pipe isn't running (otherwise err would be USBD_INPROG), 1940 * so start it first. 1941 */ 1942 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1943 } 1944 1945 usbd_status 1946 uhci_device_intr_start(usbd_xfer_handle xfer) 1947 { 1948 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1949 usbd_device_handle dev = upipe->pipe.device; 1950 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1951 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1952 uhci_soft_td_t *data, *dataend; 1953 uhci_soft_qh_t *sqh; 1954 usbd_status err; 1955 int i, s; 1956 1957 if (sc->sc_dying) 1958 return (USBD_IOERROR); 1959 1960 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1961 xfer, xfer->length, xfer->flags)); 1962 1963 #ifdef DIAGNOSTIC 1964 if (xfer->rqflags & URQ_REQUEST) 1965 panic("uhci_device_intr_transfer: a request\n"); 1966 #endif 1967 1968 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1969 &xfer->dmabuf, &data, &dataend); 1970 if (err) 1971 return (err); 1972 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1973 1974 #ifdef UHCI_DEBUG 1975 if (uhcidebug > 10) { 1976 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1977 uhci_dump_tds(data); 1978 uhci_dump_qh(upipe->u.intr.qhs[0]); 1979 } 1980 #endif 1981 1982 s = splusb(); 1983 /* Set up interrupt info. */ 1984 ii->xfer = xfer; 1985 ii->stdstart = data; 1986 ii->stdend = dataend; 1987 #ifdef DIAGNOSTIC 1988 if (!ii->isdone) { 1989 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1990 } 1991 ii->isdone = 0; 1992 #endif 1993 1994 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1995 upipe->u.intr.qhs[0])); 1996 for (i = 0; i < upipe->u.intr.npoll; i++) { 1997 sqh = upipe->u.intr.qhs[i]; 1998 sqh->elink = data; 1999 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2000 } 2001 uhci_add_intr_info(sc, ii); 2002 xfer->status = USBD_IN_PROGRESS; 2003 splx(s); 2004 2005 #ifdef UHCI_DEBUG 2006 if (uhcidebug > 10) { 2007 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2008 uhci_dump_tds(data); 2009 uhci_dump_qh(upipe->u.intr.qhs[0]); 2010 } 2011 #endif 2012 2013 return (USBD_IN_PROGRESS); 2014 } 2015 2016 /* Abort a device control request. */ 2017 void 2018 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2019 { 2020 DPRINTF(("uhci_device_ctrl_abort:\n")); 2021 uhci_abort_xfer(xfer, USBD_CANCELLED); 2022 } 2023 2024 /* Close a device control pipe. */ 2025 void 2026 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2027 { 2028 } 2029 2030 /* Abort a device interrupt request. */ 2031 void 2032 uhci_device_intr_abort(usbd_xfer_handle xfer) 2033 { 2034 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2035 if (xfer->pipe->intrxfer == xfer) { 2036 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2037 xfer->pipe->intrxfer = 0; 2038 } 2039 uhci_abort_xfer(xfer, USBD_CANCELLED); 2040 } 2041 2042 /* Close a device interrupt pipe. */ 2043 void 2044 uhci_device_intr_close(usbd_pipe_handle pipe) 2045 { 2046 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2047 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2048 int i, npoll; 2049 int s; 2050 2051 /* Unlink descriptors from controller data structures. */ 2052 npoll = upipe->u.intr.npoll; 2053 s = splusb(); 2054 for (i = 0; i < npoll; i++) 2055 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2056 splx(s); 2057 2058 /* 2059 * We now have to wait for any activity on the physical 2060 * descriptors to stop. 2061 */ 2062 usb_delay_ms(&sc->sc_bus, 2); 2063 2064 for(i = 0; i < npoll; i++) 2065 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2066 free(upipe->u.intr.qhs, M_USBHC); 2067 2068 /* XXX free other resources */ 2069 } 2070 2071 usbd_status 2072 uhci_device_request(usbd_xfer_handle xfer) 2073 { 2074 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2075 usb_device_request_t *req = &xfer->request; 2076 usbd_device_handle dev = upipe->pipe.device; 2077 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2078 int addr = dev->address; 2079 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2080 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2081 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2082 uhci_soft_qh_t *sqh; 2083 int len; 2084 u_int32_t ls; 2085 usbd_status err; 2086 int isread; 2087 int s; 2088 2089 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2090 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2091 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2092 UGETW(req->wIndex), UGETW(req->wLength), 2093 addr, endpt)); 2094 2095 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2096 isread = req->bmRequestType & UT_READ; 2097 len = UGETW(req->wLength); 2098 2099 setup = upipe->u.ctl.setup; 2100 stat = upipe->u.ctl.stat; 2101 sqh = upipe->u.ctl.sqh; 2102 2103 /* Set up data transaction */ 2104 if (len != 0) { 2105 upipe->nexttoggle = 1; 2106 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2107 &xfer->dmabuf, &data, &dataend); 2108 if (err) 2109 return (err); 2110 next = data; 2111 dataend->link.std = stat; 2112 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2113 } else { 2114 next = stat; 2115 } 2116 upipe->u.ctl.length = len; 2117 2118 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2119 2120 setup->link.std = next; 2121 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2122 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2123 UHCI_TD_ACTIVE); 2124 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2125 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2126 2127 stat->link.std = NULL; 2128 stat->td.td_link = htole32(UHCI_PTR_T); 2129 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2130 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2131 stat->td.td_token = 2132 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2133 UHCI_TD_IN (0, endpt, addr, 1)); 2134 stat->td.td_buffer = htole32(0); 2135 2136 #ifdef UHCI_DEBUG 2137 if (uhcidebug > 10) { 2138 DPRINTF(("uhci_device_request: before transfer\n")); 2139 uhci_dump_tds(setup); 2140 } 2141 #endif 2142 2143 /* Set up interrupt info. */ 2144 ii->xfer = xfer; 2145 ii->stdstart = setup; 2146 ii->stdend = stat; 2147 #ifdef DIAGNOSTIC 2148 if (!ii->isdone) { 2149 printf("uhci_device_request: not done, ii=%p\n", ii); 2150 } 2151 ii->isdone = 0; 2152 #endif 2153 2154 sqh->elink = setup; 2155 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2156 2157 s = splusb(); 2158 if (dev->lowspeed) 2159 uhci_add_ls_ctrl(sc, sqh); 2160 else 2161 uhci_add_hs_ctrl(sc, sqh); 2162 uhci_add_intr_info(sc, ii); 2163 #ifdef UHCI_DEBUG 2164 if (uhcidebug > 12) { 2165 uhci_soft_td_t *std; 2166 uhci_soft_qh_t *xqh; 2167 uhci_soft_qh_t *sxqh; 2168 int maxqh = 0; 2169 uhci_physaddr_t link; 2170 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2171 for (std = sc->sc_vframes[0].htd, link = 0; 2172 (link & UHCI_PTR_QH) == 0; 2173 std = std->link.std) { 2174 link = le32toh(std->td.td_link); 2175 uhci_dump_td(std); 2176 } 2177 sxqh = (uhci_soft_qh_t *)std; 2178 uhci_dump_qh(sxqh); 2179 for (xqh = sxqh; 2180 xqh != NULL; 2181 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2182 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2183 uhci_dump_qh(xqh); 2184 } 2185 DPRINTF(("Enqueued QH:\n")); 2186 uhci_dump_qh(sqh); 2187 uhci_dump_tds(sqh->elink); 2188 } 2189 #endif 2190 if (xfer->timeout && !sc->sc_bus.use_polling) { 2191 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2192 uhci_timeout, ii); 2193 } 2194 xfer->status = USBD_IN_PROGRESS; 2195 splx(s); 2196 2197 return (USBD_NORMAL_COMPLETION); 2198 } 2199 2200 usbd_status 2201 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2202 { 2203 usbd_status err; 2204 2205 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2206 2207 /* Put it on our queue, */ 2208 err = usb_insert_transfer(xfer); 2209 2210 /* bail out on error, */ 2211 if (err && err != USBD_IN_PROGRESS) 2212 return (err); 2213 2214 /* XXX should check inuse here */ 2215 2216 /* insert into schedule, */ 2217 uhci_device_isoc_enter(xfer); 2218 2219 /* and start if the pipe wasn't running */ 2220 if (!err) 2221 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2222 2223 return (err); 2224 } 2225 2226 void 2227 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2228 { 2229 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2230 usbd_device_handle dev = upipe->pipe.device; 2231 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2232 struct iso *iso = &upipe->u.iso; 2233 uhci_soft_td_t *std; 2234 u_int32_t buf, len, status; 2235 int s, i, next, nframes; 2236 2237 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2238 "nframes=%d\n", 2239 iso->inuse, iso->next, xfer, xfer->nframes)); 2240 2241 if (sc->sc_dying) 2242 return; 2243 2244 if (xfer->status == USBD_IN_PROGRESS) { 2245 /* This request has already been entered into the frame list */ 2246 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2247 /* XXX */ 2248 } 2249 2250 #ifdef DIAGNOSTIC 2251 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2252 printf("uhci_device_isoc_enter: overflow!\n"); 2253 #endif 2254 2255 next = iso->next; 2256 if (next == -1) { 2257 /* Not in use yet, schedule it a few frames ahead. */ 2258 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2259 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2260 } 2261 2262 xfer->status = USBD_IN_PROGRESS; 2263 UXFER(xfer)->curframe = next; 2264 2265 buf = DMAADDR(&xfer->dmabuf); 2266 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2267 UHCI_TD_ACTIVE | 2268 UHCI_TD_IOS); 2269 nframes = xfer->nframes; 2270 s = splusb(); 2271 for (i = 0; i < nframes; i++) { 2272 std = iso->stds[next]; 2273 if (++next >= UHCI_VFRAMELIST_COUNT) 2274 next = 0; 2275 len = xfer->frlengths[i]; 2276 std->td.td_buffer = htole32(buf); 2277 if (i == nframes - 1) 2278 status |= UHCI_TD_IOC; 2279 std->td.td_status = htole32(status); 2280 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2281 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2282 #ifdef UHCI_DEBUG 2283 if (uhcidebug > 5) { 2284 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2285 uhci_dump_td(std); 2286 } 2287 #endif 2288 buf += len; 2289 } 2290 iso->next = next; 2291 iso->inuse += xfer->nframes; 2292 2293 splx(s); 2294 } 2295 2296 usbd_status 2297 uhci_device_isoc_start(usbd_xfer_handle xfer) 2298 { 2299 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2300 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2301 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2302 uhci_soft_td_t *end; 2303 int s, i; 2304 2305 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2306 2307 if (sc->sc_dying) 2308 return (USBD_IOERROR); 2309 2310 #ifdef DIAGNOSTIC 2311 if (xfer->status != USBD_IN_PROGRESS) 2312 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2313 #endif 2314 2315 /* Find the last TD */ 2316 i = UXFER(xfer)->curframe + xfer->nframes; 2317 if (i >= UHCI_VFRAMELIST_COUNT) 2318 i -= UHCI_VFRAMELIST_COUNT; 2319 end = upipe->u.iso.stds[i]; 2320 2321 #ifdef DIAGNOSTIC 2322 if (end == NULL) { 2323 printf("uhci_device_isoc_start: end == NULL\n"); 2324 return (USBD_INVAL); 2325 } 2326 #endif 2327 2328 s = splusb(); 2329 2330 /* Set up interrupt info. */ 2331 ii->xfer = xfer; 2332 ii->stdstart = end; 2333 ii->stdend = end; 2334 #ifdef DIAGNOSTIC 2335 if (!ii->isdone) 2336 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2337 ii->isdone = 0; 2338 #endif 2339 uhci_add_intr_info(sc, ii); 2340 2341 splx(s); 2342 2343 return (USBD_IN_PROGRESS); 2344 } 2345 2346 void 2347 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2348 { 2349 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2350 uhci_soft_td_t **stds = upipe->u.iso.stds; 2351 uhci_soft_td_t *std; 2352 int i, n, s, nframes, maxlen, len; 2353 2354 s = splusb(); 2355 2356 /* Transfer is already done. */ 2357 if (xfer->status != USBD_NOT_STARTED && 2358 xfer->status != USBD_IN_PROGRESS) { 2359 splx(s); 2360 return; 2361 } 2362 2363 /* Give xfer the requested abort code. */ 2364 xfer->status = USBD_CANCELLED; 2365 2366 /* make hardware ignore it, */ 2367 nframes = xfer->nframes; 2368 n = UXFER(xfer)->curframe; 2369 maxlen = 0; 2370 for (i = 0; i < nframes; i++) { 2371 std = stds[n]; 2372 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2373 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2374 if (len > maxlen) 2375 maxlen = len; 2376 if (++n >= UHCI_VFRAMELIST_COUNT) 2377 n = 0; 2378 } 2379 2380 /* and wait until we are sure the hardware has finished. */ 2381 delay(maxlen); 2382 2383 #ifdef DIAGNOSTIC 2384 UXFER(xfer)->iinfo.isdone = 1; 2385 #endif 2386 /* Run callback and remove from interrupt list. */ 2387 usb_transfer_complete(xfer); 2388 2389 splx(s); 2390 } 2391 2392 void 2393 uhci_device_isoc_close(usbd_pipe_handle pipe) 2394 { 2395 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2396 usbd_device_handle dev = upipe->pipe.device; 2397 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2398 uhci_soft_td_t *std, *vstd; 2399 struct iso *iso; 2400 int i, s; 2401 2402 /* 2403 * Make sure all TDs are marked as inactive. 2404 * Wait for completion. 2405 * Unschedule. 2406 * Deallocate. 2407 */ 2408 iso = &upipe->u.iso; 2409 2410 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2411 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2412 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2413 2414 s = splusb(); 2415 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2416 std = iso->stds[i]; 2417 for (vstd = sc->sc_vframes[i].htd; 2418 vstd != NULL && vstd->link.std != std; 2419 vstd = vstd->link.std) 2420 ; 2421 if (vstd == NULL) { 2422 /*panic*/ 2423 printf("uhci_device_isoc_close: %p not found\n", std); 2424 splx(s); 2425 return; 2426 } 2427 vstd->link = std->link; 2428 vstd->td.td_link = std->td.td_link; 2429 uhci_free_std(sc, std); 2430 } 2431 splx(s); 2432 2433 free(iso->stds, M_USBHC); 2434 } 2435 2436 usbd_status 2437 uhci_setup_isoc(usbd_pipe_handle pipe) 2438 { 2439 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2440 usbd_device_handle dev = upipe->pipe.device; 2441 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2442 int addr = upipe->pipe.device->address; 2443 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2444 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2445 uhci_soft_td_t *std, *vstd; 2446 u_int32_t token; 2447 struct iso *iso; 2448 int i, s; 2449 2450 iso = &upipe->u.iso; 2451 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2452 M_USBHC, M_WAITOK); 2453 2454 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2455 UHCI_TD_OUT(0, endpt, addr, 0); 2456 2457 /* Allocate the TDs and mark as inactive; */ 2458 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2459 std = uhci_alloc_std(sc); 2460 if (std == 0) 2461 goto bad; 2462 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2463 std->td.td_token = htole32(token); 2464 iso->stds[i] = std; 2465 } 2466 2467 /* Insert TDs into schedule. */ 2468 s = splusb(); 2469 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2470 std = iso->stds[i]; 2471 vstd = sc->sc_vframes[i].htd; 2472 std->link = vstd->link; 2473 std->td.td_link = vstd->td.td_link; 2474 vstd->link.std = std; 2475 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2476 } 2477 splx(s); 2478 2479 iso->next = -1; 2480 iso->inuse = 0; 2481 2482 return (USBD_NORMAL_COMPLETION); 2483 2484 bad: 2485 while (--i >= 0) 2486 uhci_free_std(sc, iso->stds[i]); 2487 free(iso->stds, M_USBHC); 2488 return (USBD_NOMEM); 2489 } 2490 2491 void 2492 uhci_device_isoc_done(usbd_xfer_handle xfer) 2493 { 2494 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2495 2496 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2497 2498 if (ii->xfer != xfer) 2499 /* Not on interrupt list, ignore it. */ 2500 return; 2501 2502 #ifdef DIAGNOSTIC 2503 if (xfer->busy_free != XFER_BUSY) { 2504 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2505 xfer, xfer->busy_free); 2506 return; 2507 } 2508 2509 if (ii->stdend == NULL) { 2510 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2511 #ifdef UHCI_DEBUG 2512 uhci_dump_ii(ii); 2513 #endif 2514 return; 2515 } 2516 #endif 2517 2518 /* Turn off the interrupt since it is active even if the TD is not. */ 2519 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2520 2521 uhci_del_intr_info(ii); /* remove from active list */ 2522 } 2523 2524 void 2525 uhci_device_intr_done(usbd_xfer_handle xfer) 2526 { 2527 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2528 uhci_softc_t *sc = ii->sc; 2529 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2530 uhci_soft_qh_t *sqh; 2531 int i, npoll; 2532 2533 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2534 2535 npoll = upipe->u.intr.npoll; 2536 for(i = 0; i < npoll; i++) { 2537 sqh = upipe->u.intr.qhs[i]; 2538 sqh->elink = NULL; 2539 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2540 } 2541 uhci_free_std_chain(sc, ii->stdstart, 0); 2542 2543 /* XXX Wasteful. */ 2544 if (xfer->pipe->repeat) { 2545 uhci_soft_td_t *data, *dataend; 2546 2547 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2548 2549 /* This alloc cannot fail since we freed the chain above. */ 2550 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2551 &xfer->dmabuf, &data, &dataend); 2552 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2553 2554 #ifdef UHCI_DEBUG 2555 if (uhcidebug > 10) { 2556 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2557 uhci_dump_tds(data); 2558 uhci_dump_qh(upipe->u.intr.qhs[0]); 2559 } 2560 #endif 2561 2562 ii->stdstart = data; 2563 ii->stdend = dataend; 2564 #ifdef DIAGNOSTIC 2565 if (!ii->isdone) { 2566 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2567 } 2568 ii->isdone = 0; 2569 #endif 2570 for (i = 0; i < npoll; i++) { 2571 sqh = upipe->u.intr.qhs[i]; 2572 sqh->elink = data; 2573 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2574 } 2575 xfer->status = USBD_IN_PROGRESS; 2576 /* The ii is already on the examined list, just leave it. */ 2577 } else { 2578 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2579 uhci_del_intr_info(ii); 2580 } 2581 } 2582 2583 /* Deallocate request data structures */ 2584 void 2585 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2586 { 2587 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2588 uhci_softc_t *sc = ii->sc; 2589 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2590 2591 #ifdef DIAGNOSTIC 2592 if (!(xfer->rqflags & URQ_REQUEST)) 2593 panic("uhci_ctrl_done: not a request\n"); 2594 #endif 2595 2596 uhci_del_intr_info(ii); /* remove from active list */ 2597 2598 if (upipe->pipe.device->lowspeed) 2599 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2600 else 2601 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2602 2603 if (upipe->u.ctl.length != 0) 2604 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2605 2606 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2607 } 2608 2609 /* Deallocate request data structures */ 2610 void 2611 uhci_device_bulk_done(usbd_xfer_handle xfer) 2612 { 2613 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2614 uhci_softc_t *sc = ii->sc; 2615 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2616 2617 uhci_del_intr_info(ii); /* remove from active list */ 2618 2619 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2620 2621 uhci_free_std_chain(sc, ii->stdstart, 0); 2622 2623 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2624 } 2625 2626 /* Add interrupt QH, called with vflock. */ 2627 void 2628 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2629 { 2630 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2631 uhci_soft_qh_t *eqh; 2632 2633 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2634 2635 eqh = vf->eqh; 2636 sqh->hlink = eqh->hlink; 2637 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2638 eqh->hlink = sqh; 2639 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2640 vf->eqh = sqh; 2641 vf->bandwidth++; 2642 } 2643 2644 /* Remove interrupt QH. */ 2645 void 2646 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2647 { 2648 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2649 uhci_soft_qh_t *pqh; 2650 2651 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2652 2653 /* See comment in uhci_remove_ctrl() */ 2654 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2655 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2656 delay(UHCI_QH_REMOVE_DELAY); 2657 } 2658 2659 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2660 pqh->hlink = sqh->hlink; 2661 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2662 delay(UHCI_QH_REMOVE_DELAY); 2663 if (vf->eqh == sqh) 2664 vf->eqh = pqh; 2665 vf->bandwidth--; 2666 } 2667 2668 usbd_status 2669 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2670 { 2671 uhci_soft_qh_t *sqh; 2672 int i, npoll, s; 2673 u_int bestbw, bw, bestoffs, offs; 2674 2675 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2676 if (ival == 0) { 2677 printf("uhci_setintr: 0 interval\n"); 2678 return (USBD_INVAL); 2679 } 2680 2681 if (ival > UHCI_VFRAMELIST_COUNT) 2682 ival = UHCI_VFRAMELIST_COUNT; 2683 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2684 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2685 2686 upipe->u.intr.npoll = npoll; 2687 upipe->u.intr.qhs = 2688 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2689 2690 /* 2691 * Figure out which offset in the schedule that has most 2692 * bandwidth left over. 2693 */ 2694 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2695 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2696 for (bw = i = 0; i < npoll; i++) 2697 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2698 if (bw < bestbw) { 2699 bestbw = bw; 2700 bestoffs = offs; 2701 } 2702 } 2703 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2704 2705 for(i = 0; i < npoll; i++) { 2706 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2707 sqh->elink = NULL; 2708 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2709 sqh->pos = MOD(i * ival + bestoffs); 2710 } 2711 #undef MOD 2712 2713 s = splusb(); 2714 /* Enter QHs into the controller data structures. */ 2715 for(i = 0; i < npoll; i++) 2716 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2717 splx(s); 2718 2719 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2720 return (USBD_NORMAL_COMPLETION); 2721 } 2722 2723 /* Open a new pipe. */ 2724 usbd_status 2725 uhci_open(usbd_pipe_handle pipe) 2726 { 2727 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2728 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2729 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2730 usbd_status err; 2731 int ival; 2732 2733 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2734 pipe, pipe->device->address, 2735 ed->bEndpointAddress, sc->sc_addr)); 2736 2737 upipe->aborting = 0; 2738 upipe->nexttoggle = 0; 2739 2740 if (pipe->device->address == sc->sc_addr) { 2741 switch (ed->bEndpointAddress) { 2742 case USB_CONTROL_ENDPOINT: 2743 pipe->methods = &uhci_root_ctrl_methods; 2744 break; 2745 case UE_DIR_IN | UHCI_INTR_ENDPT: 2746 pipe->methods = &uhci_root_intr_methods; 2747 break; 2748 default: 2749 return (USBD_INVAL); 2750 } 2751 } else { 2752 switch (ed->bmAttributes & UE_XFERTYPE) { 2753 case UE_CONTROL: 2754 pipe->methods = &uhci_device_ctrl_methods; 2755 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2756 if (upipe->u.ctl.sqh == NULL) 2757 goto bad; 2758 upipe->u.ctl.setup = uhci_alloc_std(sc); 2759 if (upipe->u.ctl.setup == NULL) { 2760 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2761 goto bad; 2762 } 2763 upipe->u.ctl.stat = uhci_alloc_std(sc); 2764 if (upipe->u.ctl.stat == NULL) { 2765 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2766 uhci_free_std(sc, upipe->u.ctl.setup); 2767 goto bad; 2768 } 2769 err = usb_allocmem(&sc->sc_bus, 2770 sizeof(usb_device_request_t), 2771 0, &upipe->u.ctl.reqdma); 2772 if (err) { 2773 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2774 uhci_free_std(sc, upipe->u.ctl.setup); 2775 uhci_free_std(sc, upipe->u.ctl.stat); 2776 goto bad; 2777 } 2778 break; 2779 case UE_INTERRUPT: 2780 pipe->methods = &uhci_device_intr_methods; 2781 ival = pipe->interval; 2782 if (ival == USBD_DEFAULT_INTERVAL) 2783 ival = ed->bInterval; 2784 return (uhci_device_setintr(sc, upipe, ival)); 2785 case UE_ISOCHRONOUS: 2786 pipe->methods = &uhci_device_isoc_methods; 2787 return (uhci_setup_isoc(pipe)); 2788 case UE_BULK: 2789 pipe->methods = &uhci_device_bulk_methods; 2790 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2791 if (upipe->u.bulk.sqh == NULL) 2792 goto bad; 2793 break; 2794 } 2795 } 2796 return (USBD_NORMAL_COMPLETION); 2797 2798 bad: 2799 return (USBD_NOMEM); 2800 } 2801 2802 /* 2803 * Data structures and routines to emulate the root hub. 2804 */ 2805 usb_device_descriptor_t uhci_devd = { 2806 USB_DEVICE_DESCRIPTOR_SIZE, 2807 UDESC_DEVICE, /* type */ 2808 {0x00, 0x01}, /* USB version */ 2809 UDCLASS_HUB, /* class */ 2810 UDSUBCLASS_HUB, /* subclass */ 2811 0, /* protocol */ 2812 64, /* max packet */ 2813 {0},{0},{0x00,0x01}, /* device id */ 2814 1,2,0, /* string indicies */ 2815 1 /* # of configurations */ 2816 }; 2817 2818 usb_config_descriptor_t uhci_confd = { 2819 USB_CONFIG_DESCRIPTOR_SIZE, 2820 UDESC_CONFIG, 2821 {USB_CONFIG_DESCRIPTOR_SIZE + 2822 USB_INTERFACE_DESCRIPTOR_SIZE + 2823 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2824 1, 2825 1, 2826 0, 2827 UC_SELF_POWERED, 2828 0 /* max power */ 2829 }; 2830 2831 usb_interface_descriptor_t uhci_ifcd = { 2832 USB_INTERFACE_DESCRIPTOR_SIZE, 2833 UDESC_INTERFACE, 2834 0, 2835 0, 2836 1, 2837 UICLASS_HUB, 2838 UISUBCLASS_HUB, 2839 0, 2840 0 2841 }; 2842 2843 usb_endpoint_descriptor_t uhci_endpd = { 2844 USB_ENDPOINT_DESCRIPTOR_SIZE, 2845 UDESC_ENDPOINT, 2846 UE_DIR_IN | UHCI_INTR_ENDPT, 2847 UE_INTERRUPT, 2848 {8}, 2849 255 2850 }; 2851 2852 usb_hub_descriptor_t uhci_hubd_piix = { 2853 USB_HUB_DESCRIPTOR_SIZE, 2854 UDESC_HUB, 2855 2, 2856 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2857 50, /* power on to power good */ 2858 0, 2859 { 0x00 }, /* both ports are removable */ 2860 }; 2861 2862 int 2863 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2864 { 2865 int i; 2866 2867 if (l == 0) 2868 return (0); 2869 p->bLength = 2 * strlen(s) + 2; 2870 if (l == 1) 2871 return (1); 2872 p->bDescriptorType = UDESC_STRING; 2873 l -= 2; 2874 for (i = 0; s[i] && l > 1; i++, l -= 2) 2875 USETW2(p->bString[i], 0, s[i]); 2876 return (2*i+2); 2877 } 2878 2879 /* 2880 * Simulate a hardware hub by handling all the necessary requests. 2881 */ 2882 usbd_status 2883 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2884 { 2885 usbd_status err; 2886 2887 /* Insert last in queue. */ 2888 err = usb_insert_transfer(xfer); 2889 if (err) 2890 return (err); 2891 2892 /* 2893 * Pipe isn't running (otherwise err would be USBD_INPROG), 2894 * so start it first. 2895 */ 2896 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2897 } 2898 2899 usbd_status 2900 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2901 { 2902 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2903 usb_device_request_t *req; 2904 void *buf = NULL; 2905 int port, x; 2906 int s, len, value, index, status, change, l, totlen = 0; 2907 usb_port_status_t ps; 2908 usbd_status err; 2909 2910 if (sc->sc_dying) 2911 return (USBD_IOERROR); 2912 2913 #ifdef DIAGNOSTIC 2914 if (!(xfer->rqflags & URQ_REQUEST)) 2915 panic("uhci_root_ctrl_transfer: not a request\n"); 2916 #endif 2917 req = &xfer->request; 2918 2919 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2920 req->bmRequestType, req->bRequest)); 2921 2922 len = UGETW(req->wLength); 2923 value = UGETW(req->wValue); 2924 index = UGETW(req->wIndex); 2925 2926 if (len != 0) 2927 buf = KERNADDR(&xfer->dmabuf); 2928 2929 #define C(x,y) ((x) | ((y) << 8)) 2930 switch(C(req->bRequest, req->bmRequestType)) { 2931 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2932 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2933 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2934 /* 2935 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2936 * for the integrated root hub. 2937 */ 2938 break; 2939 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2940 if (len > 0) { 2941 *(u_int8_t *)buf = sc->sc_conf; 2942 totlen = 1; 2943 } 2944 break; 2945 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2946 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2947 switch(value >> 8) { 2948 case UDESC_DEVICE: 2949 if ((value & 0xff) != 0) { 2950 err = USBD_IOERROR; 2951 goto ret; 2952 } 2953 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2954 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2955 memcpy(buf, &uhci_devd, l); 2956 break; 2957 case UDESC_CONFIG: 2958 if ((value & 0xff) != 0) { 2959 err = USBD_IOERROR; 2960 goto ret; 2961 } 2962 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2963 memcpy(buf, &uhci_confd, l); 2964 buf = (char *)buf + l; 2965 len -= l; 2966 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2967 totlen += l; 2968 memcpy(buf, &uhci_ifcd, l); 2969 buf = (char *)buf + l; 2970 len -= l; 2971 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2972 totlen += l; 2973 memcpy(buf, &uhci_endpd, l); 2974 break; 2975 case UDESC_STRING: 2976 if (len == 0) 2977 break; 2978 *(u_int8_t *)buf = 0; 2979 totlen = 1; 2980 switch (value & 0xff) { 2981 case 1: /* Vendor */ 2982 totlen = uhci_str(buf, len, sc->sc_vendor); 2983 break; 2984 case 2: /* Product */ 2985 totlen = uhci_str(buf, len, "UHCI root hub"); 2986 break; 2987 } 2988 break; 2989 default: 2990 err = USBD_IOERROR; 2991 goto ret; 2992 } 2993 break; 2994 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2995 if (len > 0) { 2996 *(u_int8_t *)buf = 0; 2997 totlen = 1; 2998 } 2999 break; 3000 case C(UR_GET_STATUS, UT_READ_DEVICE): 3001 if (len > 1) { 3002 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3003 totlen = 2; 3004 } 3005 break; 3006 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3007 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3008 if (len > 1) { 3009 USETW(((usb_status_t *)buf)->wStatus, 0); 3010 totlen = 2; 3011 } 3012 break; 3013 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3014 if (value >= USB_MAX_DEVICES) { 3015 err = USBD_IOERROR; 3016 goto ret; 3017 } 3018 sc->sc_addr = value; 3019 break; 3020 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3021 if (value != 0 && value != 1) { 3022 err = USBD_IOERROR; 3023 goto ret; 3024 } 3025 sc->sc_conf = value; 3026 break; 3027 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3028 break; 3029 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3030 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3031 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3032 err = USBD_IOERROR; 3033 goto ret; 3034 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3035 break; 3036 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3037 break; 3038 /* Hub requests */ 3039 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3040 break; 3041 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3042 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3043 "port=%d feature=%d\n", 3044 index, value)); 3045 if (index == 1) 3046 port = UHCI_PORTSC1; 3047 else if (index == 2) 3048 port = UHCI_PORTSC2; 3049 else { 3050 err = USBD_IOERROR; 3051 goto ret; 3052 } 3053 switch(value) { 3054 case UHF_PORT_ENABLE: 3055 x = UREAD2(sc, port); 3056 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3057 break; 3058 case UHF_PORT_SUSPEND: 3059 x = UREAD2(sc, port); 3060 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3061 break; 3062 case UHF_PORT_RESET: 3063 x = UREAD2(sc, port); 3064 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3065 break; 3066 case UHF_C_PORT_CONNECTION: 3067 x = UREAD2(sc, port); 3068 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3069 break; 3070 case UHF_C_PORT_ENABLE: 3071 x = UREAD2(sc, port); 3072 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3073 break; 3074 case UHF_C_PORT_OVER_CURRENT: 3075 x = UREAD2(sc, port); 3076 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3077 break; 3078 case UHF_C_PORT_RESET: 3079 sc->sc_isreset = 0; 3080 err = USBD_NORMAL_COMPLETION; 3081 goto ret; 3082 case UHF_PORT_CONNECTION: 3083 case UHF_PORT_OVER_CURRENT: 3084 case UHF_PORT_POWER: 3085 case UHF_PORT_LOW_SPEED: 3086 case UHF_C_PORT_SUSPEND: 3087 default: 3088 err = USBD_IOERROR; 3089 goto ret; 3090 } 3091 break; 3092 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3093 if (index == 1) 3094 port = UHCI_PORTSC1; 3095 else if (index == 2) 3096 port = UHCI_PORTSC2; 3097 else { 3098 err = USBD_IOERROR; 3099 goto ret; 3100 } 3101 if (len > 0) { 3102 *(u_int8_t *)buf = 3103 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3104 UHCI_PORTSC_LS_SHIFT; 3105 totlen = 1; 3106 } 3107 break; 3108 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3109 if (value != 0) { 3110 err = USBD_IOERROR; 3111 goto ret; 3112 } 3113 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3114 totlen = l; 3115 memcpy(buf, &uhci_hubd_piix, l); 3116 break; 3117 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3118 if (len != 4) { 3119 err = USBD_IOERROR; 3120 goto ret; 3121 } 3122 memset(buf, 0, len); 3123 totlen = len; 3124 break; 3125 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3126 if (index == 1) 3127 port = UHCI_PORTSC1; 3128 else if (index == 2) 3129 port = UHCI_PORTSC2; 3130 else { 3131 err = USBD_IOERROR; 3132 goto ret; 3133 } 3134 if (len != 4) { 3135 err = USBD_IOERROR; 3136 goto ret; 3137 } 3138 x = UREAD2(sc, port); 3139 status = change = 0; 3140 if (x & UHCI_PORTSC_CCS ) 3141 status |= UPS_CURRENT_CONNECT_STATUS; 3142 if (x & UHCI_PORTSC_CSC ) 3143 change |= UPS_C_CONNECT_STATUS; 3144 if (x & UHCI_PORTSC_PE ) 3145 status |= UPS_PORT_ENABLED; 3146 if (x & UHCI_PORTSC_POEDC) 3147 change |= UPS_C_PORT_ENABLED; 3148 if (x & UHCI_PORTSC_OCI ) 3149 status |= UPS_OVERCURRENT_INDICATOR; 3150 if (x & UHCI_PORTSC_OCIC ) 3151 change |= UPS_C_OVERCURRENT_INDICATOR; 3152 if (x & UHCI_PORTSC_SUSP ) 3153 status |= UPS_SUSPEND; 3154 if (x & UHCI_PORTSC_LSDA ) 3155 status |= UPS_LOW_SPEED; 3156 status |= UPS_PORT_POWER; 3157 if (sc->sc_isreset) 3158 change |= UPS_C_PORT_RESET; 3159 USETW(ps.wPortStatus, status); 3160 USETW(ps.wPortChange, change); 3161 l = min(len, sizeof ps); 3162 memcpy(buf, &ps, l); 3163 totlen = l; 3164 break; 3165 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3166 err = USBD_IOERROR; 3167 goto ret; 3168 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3169 break; 3170 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3171 if (index == 1) 3172 port = UHCI_PORTSC1; 3173 else if (index == 2) 3174 port = UHCI_PORTSC2; 3175 else { 3176 err = USBD_IOERROR; 3177 goto ret; 3178 } 3179 switch(value) { 3180 case UHF_PORT_ENABLE: 3181 x = UREAD2(sc, port); 3182 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3183 break; 3184 case UHF_PORT_SUSPEND: 3185 x = UREAD2(sc, port); 3186 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3187 break; 3188 case UHF_PORT_RESET: 3189 x = UREAD2(sc, port); 3190 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3191 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3192 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3193 delay(100); 3194 x = UREAD2(sc, port); 3195 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3196 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3197 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3198 index, UREAD2(sc, port))); 3199 sc->sc_isreset = 1; 3200 break; 3201 case UHF_PORT_POWER: 3202 /* Pretend we turned on power */ 3203 err = USBD_NORMAL_COMPLETION; 3204 goto ret; 3205 case UHF_C_PORT_CONNECTION: 3206 case UHF_C_PORT_ENABLE: 3207 case UHF_C_PORT_OVER_CURRENT: 3208 case UHF_PORT_CONNECTION: 3209 case UHF_PORT_OVER_CURRENT: 3210 case UHF_PORT_LOW_SPEED: 3211 case UHF_C_PORT_SUSPEND: 3212 case UHF_C_PORT_RESET: 3213 default: 3214 err = USBD_IOERROR; 3215 goto ret; 3216 } 3217 break; 3218 default: 3219 err = USBD_IOERROR; 3220 goto ret; 3221 } 3222 xfer->actlen = totlen; 3223 err = USBD_NORMAL_COMPLETION; 3224 ret: 3225 xfer->status = err; 3226 s = splusb(); 3227 usb_transfer_complete(xfer); 3228 splx(s); 3229 return (USBD_IN_PROGRESS); 3230 } 3231 3232 /* Abort a root control request. */ 3233 void 3234 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3235 { 3236 /* Nothing to do, all transfers are synchronous. */ 3237 } 3238 3239 /* Close the root pipe. */ 3240 void 3241 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3242 { 3243 DPRINTF(("uhci_root_ctrl_close\n")); 3244 } 3245 3246 /* Abort a root interrupt request. */ 3247 void 3248 uhci_root_intr_abort(usbd_xfer_handle xfer) 3249 { 3250 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3251 3252 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3253 sc->sc_intr_xfer = NULL; 3254 3255 if (xfer->pipe->intrxfer == xfer) { 3256 DPRINTF(("uhci_root_intr_abort: remove\n")); 3257 xfer->pipe->intrxfer = 0; 3258 } 3259 xfer->status = USBD_CANCELLED; 3260 #ifdef DIAGNOSTIC 3261 UXFER(xfer)->iinfo.isdone = 1; 3262 #endif 3263 usb_transfer_complete(xfer); 3264 } 3265 3266 usbd_status 3267 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3268 { 3269 usbd_status err; 3270 3271 /* Insert last in queue. */ 3272 err = usb_insert_transfer(xfer); 3273 if (err) 3274 return (err); 3275 3276 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3277 * start first 3278 */ 3279 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3280 } 3281 3282 /* Start a transfer on the root interrupt pipe */ 3283 usbd_status 3284 uhci_root_intr_start(usbd_xfer_handle xfer) 3285 { 3286 usbd_pipe_handle pipe = xfer->pipe; 3287 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3288 3289 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3290 xfer, xfer->length, xfer->flags)); 3291 3292 if (sc->sc_dying) 3293 return (USBD_IOERROR); 3294 3295 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3296 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3297 sc->sc_intr_xfer = xfer; 3298 return (USBD_IN_PROGRESS); 3299 } 3300 3301 /* Close the root interrupt pipe. */ 3302 void 3303 uhci_root_intr_close(usbd_pipe_handle pipe) 3304 { 3305 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3306 3307 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3308 sc->sc_intr_xfer = NULL; 3309 DPRINTF(("uhci_root_intr_close\n")); 3310 } 3311