uhci.c revision 1.140
1 /* $NetBSD: uhci.c,v 1.140 2001/10/24 20:20:03 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 (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/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 xfer->busy_free = XFER_BUSY; 638 #endif 639 } 640 return (xfer); 641 } 642 643 void 644 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 645 { 646 struct uhci_softc *sc = (struct uhci_softc *)bus; 647 648 #ifdef DIAGNOSTIC 649 if (xfer->busy_free != XFER_BUSY) { 650 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 651 xfer->busy_free); 652 return; 653 } 654 xfer->busy_free = XFER_FREE; 655 if (!UXFER(xfer)->iinfo.isdone) { 656 printf("uhci_freex: !isdone\n"); 657 return; 658 } 659 #endif 660 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 661 } 662 663 /* 664 * Shut down the controller when the system is going down. 665 */ 666 void 667 uhci_shutdown(void *v) 668 { 669 uhci_softc_t *sc = v; 670 671 DPRINTF(("uhci_shutdown: stopping the HC\n")); 672 uhci_run(sc, 0); /* stop the controller */ 673 } 674 675 /* 676 * Handle suspend/resume. 677 * 678 * We need to switch to polling mode here, because this routine is 679 * called from an interrupt context. This is all right since we 680 * are almost suspended anyway. 681 */ 682 void 683 uhci_power(int why, void *v) 684 { 685 uhci_softc_t *sc = v; 686 int cmd; 687 int s; 688 689 s = splhardusb(); 690 cmd = UREAD2(sc, UHCI_CMD); 691 692 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 693 sc, why, sc->sc_suspend, cmd)); 694 695 switch (why) { 696 case PWR_SUSPEND: 697 case PWR_STANDBY: 698 #ifdef UHCI_DEBUG 699 if (uhcidebug > 2) 700 uhci_dumpregs(sc); 701 #endif 702 if (sc->sc_intr_xfer != NULL) 703 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 704 sc->sc_intr_xfer); 705 sc->sc_bus.use_polling++; 706 uhci_run(sc, 0); /* stop the controller */ 707 708 /* save some state if BIOS doesn't */ 709 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 710 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 711 712 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 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 if (pipe->endpoint == NULL) { 912 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 913 ii, DONE, ii->xfer, pipe); 914 return; 915 } 916 if (pipe->device == NULL) { 917 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 918 ii, DONE, ii->xfer, pipe); 919 return; 920 } 921 ed = pipe->endpoint->edesc; 922 dev = pipe->device; 923 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", 924 ii, DONE, ii->xfer, dev, 925 UGETW(dev->ddesc.idVendor), 926 UGETW(dev->ddesc.idProduct), 927 dev->address, pipe, 928 ed->bEndpointAddress, ed->bmAttributes); 929 #undef DONE 930 } 931 932 void uhci_dump_iis(struct uhci_softc *sc); 933 void 934 uhci_dump_iis(struct uhci_softc *sc) 935 { 936 uhci_intr_info_t *ii; 937 938 printf("intr_info list:\n"); 939 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 940 uhci_dump_ii(ii); 941 } 942 943 void iidump(void); 944 void iidump(void) { uhci_dump_iis(thesc); } 945 946 #endif 947 948 /* 949 * This routine is executed periodically and simulates interrupts 950 * from the root controller interrupt pipe for port status change. 951 */ 952 void 953 uhci_poll_hub(void *addr) 954 { 955 usbd_xfer_handle xfer = addr; 956 usbd_pipe_handle pipe = xfer->pipe; 957 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 958 int s; 959 u_char *p; 960 961 DPRINTFN(20, ("uhci_poll_hub\n")); 962 963 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 964 965 p = KERNADDR(&xfer->dmabuf); 966 p[0] = 0; 967 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 968 p[0] |= 1<<1; 969 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 970 p[0] |= 1<<2; 971 if (p[0] == 0) 972 /* No change, try again in a while */ 973 return; 974 975 xfer->actlen = 1; 976 xfer->status = USBD_NORMAL_COMPLETION; 977 s = splusb(); 978 xfer->device->bus->intr_context++; 979 usb_transfer_complete(xfer); 980 xfer->device->bus->intr_context--; 981 splx(s); 982 } 983 984 void 985 uhci_root_intr_done(usbd_xfer_handle xfer) 986 { 987 } 988 989 void 990 uhci_root_ctrl_done(usbd_xfer_handle xfer) 991 { 992 } 993 994 /* 995 * Let the last QH loop back to the high speed control transfer QH. 996 * This is what intel calls "bandwidth reclamation" and improves 997 * USB performance a lot for some devices. 998 * If we are already looping, just count it. 999 */ 1000 void 1001 uhci_add_loop(uhci_softc_t *sc) { 1002 #ifdef UHCI_DEBUG 1003 if (uhcinoloop) 1004 return; 1005 #endif 1006 if (++sc->sc_loops == 1) { 1007 DPRINTFN(5,("uhci_start_loop: add\n")); 1008 /* Note, we don't loop back the soft pointer. */ 1009 sc->sc_last_qh->qh.qh_hlink = 1010 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1011 } 1012 } 1013 1014 void 1015 uhci_rem_loop(uhci_softc_t *sc) { 1016 #ifdef UHCI_DEBUG 1017 if (uhcinoloop) 1018 return; 1019 #endif 1020 if (--sc->sc_loops == 0) { 1021 DPRINTFN(5,("uhci_end_loop: remove\n")); 1022 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1023 } 1024 } 1025 1026 /* Add high speed control QH, called at splusb(). */ 1027 void 1028 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1029 { 1030 uhci_soft_qh_t *eqh; 1031 1032 SPLUSBCHECK; 1033 1034 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1035 eqh = sc->sc_hctl_end; 1036 sqh->hlink = eqh->hlink; 1037 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1038 eqh->hlink = sqh; 1039 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1040 sc->sc_hctl_end = sqh; 1041 #ifdef UHCI_CTL_LOOP 1042 uhci_add_loop(sc); 1043 #endif 1044 } 1045 1046 /* Remove high speed control QH, called at splusb(). */ 1047 void 1048 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1049 { 1050 uhci_soft_qh_t *pqh; 1051 1052 SPLUSBCHECK; 1053 1054 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1055 #ifdef UHCI_CTL_LOOP 1056 uhci_rem_loop(sc); 1057 #endif 1058 /* 1059 * The T bit should be set in the elink of the QH so that the HC 1060 * doesn't follow the pointer. This condition may fail if the 1061 * the transferred packet was short so that the QH still points 1062 * at the last used TD. 1063 * In this case we set the T bit and wait a little for the HC 1064 * to stop looking at the TD. 1065 */ 1066 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1067 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1068 delay(UHCI_QH_REMOVE_DELAY); 1069 } 1070 1071 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1072 pqh->hlink = sqh->hlink; 1073 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1074 delay(UHCI_QH_REMOVE_DELAY); 1075 if (sc->sc_hctl_end == sqh) 1076 sc->sc_hctl_end = pqh; 1077 } 1078 1079 /* Add low speed control QH, called at splusb(). */ 1080 void 1081 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1082 { 1083 uhci_soft_qh_t *eqh; 1084 1085 SPLUSBCHECK; 1086 1087 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1088 eqh = sc->sc_lctl_end; 1089 sqh->hlink = eqh->hlink; 1090 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1091 eqh->hlink = sqh; 1092 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1093 sc->sc_lctl_end = sqh; 1094 } 1095 1096 /* Remove low speed control QH, called at splusb(). */ 1097 void 1098 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1099 { 1100 uhci_soft_qh_t *pqh; 1101 1102 SPLUSBCHECK; 1103 1104 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1105 /* See comment in uhci_remove_hs_ctrl() */ 1106 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1107 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1108 delay(UHCI_QH_REMOVE_DELAY); 1109 } 1110 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1111 pqh->hlink = sqh->hlink; 1112 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1113 delay(UHCI_QH_REMOVE_DELAY); 1114 if (sc->sc_lctl_end == sqh) 1115 sc->sc_lctl_end = pqh; 1116 } 1117 1118 /* Add bulk QH, called at splusb(). */ 1119 void 1120 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1121 { 1122 uhci_soft_qh_t *eqh; 1123 1124 SPLUSBCHECK; 1125 1126 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1127 eqh = sc->sc_bulk_end; 1128 sqh->hlink = eqh->hlink; 1129 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1130 eqh->hlink = sqh; 1131 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1132 sc->sc_bulk_end = sqh; 1133 uhci_add_loop(sc); 1134 } 1135 1136 /* Remove bulk QH, called at splusb(). */ 1137 void 1138 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1139 { 1140 uhci_soft_qh_t *pqh; 1141 1142 SPLUSBCHECK; 1143 1144 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1145 uhci_rem_loop(sc); 1146 /* See comment in uhci_remove_hs_ctrl() */ 1147 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1148 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1149 delay(UHCI_QH_REMOVE_DELAY); 1150 } 1151 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1152 pqh->hlink = sqh->hlink; 1153 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1154 delay(UHCI_QH_REMOVE_DELAY); 1155 if (sc->sc_bulk_end == sqh) 1156 sc->sc_bulk_end = pqh; 1157 } 1158 1159 int 1160 uhci_intr(void *arg) 1161 { 1162 uhci_softc_t *sc = arg; 1163 int status; 1164 int ack; 1165 1166 #ifdef UHCI_DEBUG 1167 if (uhcidebug > 15) { 1168 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 1169 uhci_dumpregs(sc); 1170 } 1171 #endif 1172 1173 status = UREAD2(sc, UHCI_STS); 1174 if (status == 0) /* The interrupt was not for us. */ 1175 return (0); 1176 1177 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1178 if (sc->sc_suspend != PWR_RESUME) 1179 printf("uhci_intr: suspended sts=0x%x\n", status); 1180 #endif 1181 1182 if (sc->sc_suspend != PWR_RESUME) { 1183 printf("%s: interrupt while not operating ignored\n", 1184 USBDEVNAME(sc->sc_bus.bdev)); 1185 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1186 return (0); 1187 } 1188 1189 ack = 0; 1190 if (status & UHCI_STS_USBINT) 1191 ack |= UHCI_STS_USBINT; 1192 if (status & UHCI_STS_USBEI) 1193 ack |= UHCI_STS_USBEI; 1194 if (status & UHCI_STS_RD) { 1195 ack |= UHCI_STS_RD; 1196 #ifdef UHCI_DEBUG 1197 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1198 #endif 1199 } 1200 if (status & UHCI_STS_HSE) { 1201 ack |= UHCI_STS_HSE; 1202 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1203 } 1204 if (status & UHCI_STS_HCPE) { 1205 ack |= UHCI_STS_HCPE; 1206 printf("%s: host controller process error\n", 1207 USBDEVNAME(sc->sc_bus.bdev)); 1208 } 1209 if (status & UHCI_STS_HCH) { 1210 /* no acknowledge needed */ 1211 if (!sc->sc_dying) { 1212 printf("%s: host controller halted\n", 1213 USBDEVNAME(sc->sc_bus.bdev)); 1214 #ifdef UHCI_DEBUG 1215 uhci_dump_all(sc); 1216 #endif 1217 } 1218 sc->sc_dying = 1; 1219 } 1220 1221 if (!ack) 1222 return (0); /* nothing to acknowledge */ 1223 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1224 1225 sc->sc_bus.no_intrs++; 1226 usb_schedsoftintr(&sc->sc_bus); 1227 1228 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1229 1230 return (1); 1231 } 1232 1233 void 1234 uhci_softintr(void *v) 1235 { 1236 uhci_softc_t *sc = v; 1237 uhci_intr_info_t *ii; 1238 1239 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1240 sc->sc_bus.intr_context)); 1241 1242 sc->sc_bus.intr_context++; 1243 1244 /* 1245 * Interrupts on UHCI really suck. When the host controller 1246 * interrupts because a transfer is completed there is no 1247 * way of knowing which transfer it was. You can scan down 1248 * the TDs and QHs of the previous frame to limit the search, 1249 * but that assumes that the interrupt was not delayed by more 1250 * than 1 ms, which may not always be true (e.g. after debug 1251 * output on a slow console). 1252 * We scan all interrupt descriptors to see if any have 1253 * completed. 1254 */ 1255 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1256 uhci_check_intr(sc, ii); 1257 1258 sc->sc_bus.intr_context--; 1259 } 1260 1261 /* Check for an interrupt. */ 1262 void 1263 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1264 { 1265 uhci_soft_td_t *std, *lstd; 1266 u_int32_t status; 1267 1268 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1269 #ifdef DIAGNOSTIC 1270 if (ii == NULL) { 1271 printf("uhci_check_intr: no ii? %p\n", ii); 1272 return; 1273 } 1274 #endif 1275 if (ii->stdstart == NULL) 1276 return; 1277 lstd = ii->stdend; 1278 #ifdef DIAGNOSTIC 1279 if (lstd == NULL) { 1280 printf("uhci_check_intr: std==0\n"); 1281 return; 1282 } 1283 #endif 1284 /* 1285 * If the last TD is still active we need to check whether there 1286 * is a an error somewhere in the middle, or whether there was a 1287 * short packet (SPD and not ACTIVE). 1288 */ 1289 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1290 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1291 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1292 status = le32toh(std->td.td_status); 1293 /* If there's an active TD the xfer isn't done. */ 1294 if (status & UHCI_TD_ACTIVE) 1295 break; 1296 /* Any kind of error makes the xfer done. */ 1297 if (status & UHCI_TD_STALLED) 1298 goto done; 1299 /* We want short packets, and it is short: it's done */ 1300 if ((status & UHCI_TD_SPD) && 1301 UHCI_TD_GET_ACTLEN(status) < 1302 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1303 goto done; 1304 } 1305 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1306 ii, ii->stdstart)); 1307 return; 1308 } 1309 done: 1310 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1311 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1312 uhci_idone(ii); 1313 } 1314 1315 /* Called at splusb() */ 1316 void 1317 uhci_idone(uhci_intr_info_t *ii) 1318 { 1319 usbd_xfer_handle xfer = ii->xfer; 1320 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1321 uhci_soft_td_t *std; 1322 u_int32_t status = 0, nstatus; 1323 int actlen; 1324 1325 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1326 #ifdef DIAGNOSTIC 1327 { 1328 int s = splhigh(); 1329 if (ii->isdone) { 1330 splx(s); 1331 #ifdef UHCI_DEBUG 1332 printf("uhci_idone: ii is done!\n "); 1333 uhci_dump_ii(ii); 1334 #else 1335 printf("uhci_idone: ii=%p is done!\n", ii); 1336 #endif 1337 return; 1338 } 1339 ii->isdone = 1; 1340 splx(s); 1341 } 1342 #endif 1343 1344 if (xfer->status == USBD_CANCELLED || 1345 xfer->status == USBD_TIMEOUT) { 1346 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1347 return; 1348 } 1349 1350 if (xfer->nframes != 0) { 1351 /* Isoc transfer, do things differently. */ 1352 uhci_soft_td_t **stds = upipe->u.iso.stds; 1353 int i, n, nframes, len; 1354 1355 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1356 1357 nframes = xfer->nframes; 1358 actlen = 0; 1359 n = UXFER(xfer)->curframe; 1360 for (i = 0; i < nframes; i++) { 1361 std = stds[n]; 1362 #ifdef UHCI_DEBUG 1363 if (uhcidebug > 5) { 1364 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1365 uhci_dump_td(std); 1366 } 1367 #endif 1368 if (++n >= UHCI_VFRAMELIST_COUNT) 1369 n = 0; 1370 status = le32toh(std->td.td_status); 1371 len = UHCI_TD_GET_ACTLEN(status); 1372 xfer->frlengths[i] = len; 1373 actlen += len; 1374 } 1375 upipe->u.iso.inuse -= nframes; 1376 xfer->actlen = actlen; 1377 xfer->status = USBD_NORMAL_COMPLETION; 1378 goto end; 1379 } 1380 1381 #ifdef UHCI_DEBUG 1382 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1383 ii, xfer, upipe)); 1384 if (uhcidebug > 10) 1385 uhci_dump_tds(ii->stdstart); 1386 #endif 1387 1388 /* The transfer is done, compute actual length and status. */ 1389 actlen = 0; 1390 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1391 nstatus = le32toh(std->td.td_status); 1392 if (nstatus & UHCI_TD_ACTIVE) 1393 break; 1394 1395 status = nstatus; 1396 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1397 UHCI_TD_PID_SETUP) 1398 actlen += UHCI_TD_GET_ACTLEN(status); 1399 } 1400 /* If there are left over TDs we need to update the toggle. */ 1401 if (std != NULL) 1402 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1403 1404 status &= UHCI_TD_ERROR; 1405 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1406 actlen, status)); 1407 xfer->actlen = actlen; 1408 if (status != 0) { 1409 #ifdef UHCI_DEBUG 1410 char sbuf[128]; 1411 1412 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1413 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1414 sbuf, sizeof(sbuf)); 1415 1416 DPRINTFN((status == UHCI_TD_STALLED)*10, 1417 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1418 "status 0x%s\n", 1419 xfer->pipe->device->address, 1420 xfer->pipe->endpoint->edesc->bEndpointAddress, 1421 sbuf)); 1422 #endif 1423 1424 if (status == UHCI_TD_STALLED) 1425 xfer->status = USBD_STALLED; 1426 else 1427 xfer->status = USBD_IOERROR; /* more info XXX */ 1428 } else { 1429 xfer->status = USBD_NORMAL_COMPLETION; 1430 } 1431 1432 end: 1433 usb_transfer_complete(xfer); 1434 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1435 } 1436 1437 /* 1438 * Called when a request does not complete. 1439 */ 1440 void 1441 uhci_timeout(void *addr) 1442 { 1443 uhci_intr_info_t *ii = addr; 1444 1445 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1446 1447 #ifdef UHCI_DEBUG 1448 if (uhcidebug > 10) 1449 uhci_dump_tds(ii->stdstart); 1450 #endif 1451 1452 ii->xfer->device->bus->intr_context++; 1453 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1454 ii->xfer->device->bus->intr_context--; 1455 } 1456 1457 /* 1458 * Wait here until controller claims to have an interrupt. 1459 * Then call uhci_intr and return. Use timeout to avoid waiting 1460 * too long. 1461 * Only used during boot when interrupts are not enabled yet. 1462 */ 1463 void 1464 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1465 { 1466 int timo = xfer->timeout; 1467 uhci_intr_info_t *ii; 1468 1469 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1470 1471 xfer->status = USBD_IN_PROGRESS; 1472 for (; timo >= 0; timo--) { 1473 usb_delay_ms(&sc->sc_bus, 1); 1474 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1475 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1476 uhci_intr(sc); 1477 if (xfer->status != USBD_IN_PROGRESS) 1478 return; 1479 } 1480 } 1481 1482 /* Timeout */ 1483 DPRINTF(("uhci_waitintr: timeout\n")); 1484 for (ii = LIST_FIRST(&sc->sc_intrhead); 1485 ii != NULL && ii->xfer != xfer; 1486 ii = LIST_NEXT(ii, list)) 1487 ; 1488 #ifdef DIAGNOSTIC 1489 if (ii == NULL) 1490 panic("uhci_waitintr: lost intr_info\n"); 1491 #endif 1492 uhci_idone(ii); 1493 } 1494 1495 void 1496 uhci_poll(struct usbd_bus *bus) 1497 { 1498 uhci_softc_t *sc = (uhci_softc_t *)bus; 1499 1500 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1501 uhci_intr(sc); 1502 } 1503 1504 #if 0 1505 void 1506 uhci_reset(uhci_softc_t *sc) 1507 { 1508 int n; 1509 1510 UHCICMD(sc, UHCI_CMD_HCRESET); 1511 /* The reset bit goes low when the controller is done. */ 1512 for (n = 0; n < UHCI_RESET_TIMEOUT && 1513 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1514 usb_delay_ms(&sc->sc_bus, 1); 1515 if (n >= UHCI_RESET_TIMEOUT) 1516 printf("%s: controller did not reset\n", 1517 USBDEVNAME(sc->sc_bus.bdev)); 1518 } 1519 #endif 1520 1521 usbd_status 1522 uhci_run(uhci_softc_t *sc, int run) 1523 { 1524 int s, n, running; 1525 u_int16_t cmd; 1526 1527 run = run != 0; 1528 s = splhardusb(); 1529 DPRINTF(("uhci_run: setting run=%d\n", run)); 1530 cmd = UREAD2(sc, UHCI_CMD); 1531 if (run) 1532 cmd |= UHCI_CMD_RS; 1533 else 1534 cmd &= ~UHCI_CMD_RS; 1535 UHCICMD(sc, cmd); 1536 for(n = 0; n < 10; n++) { 1537 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1538 /* return when we've entered the state we want */ 1539 if (run == running) { 1540 splx(s); 1541 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1542 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1543 return (USBD_NORMAL_COMPLETION); 1544 } 1545 usb_delay_ms(&sc->sc_bus, 1); 1546 } 1547 splx(s); 1548 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1549 run ? "start" : "stop"); 1550 return (USBD_IOERROR); 1551 } 1552 1553 /* 1554 * Memory management routines. 1555 * uhci_alloc_std allocates TDs 1556 * uhci_alloc_sqh allocates QHs 1557 * These two routines do their own free list management, 1558 * partly for speed, partly because allocating DMAable memory 1559 * has page size granularaity so much memory would be wasted if 1560 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1561 */ 1562 1563 uhci_soft_td_t * 1564 uhci_alloc_std(uhci_softc_t *sc) 1565 { 1566 uhci_soft_td_t *std; 1567 usbd_status err; 1568 int i, offs; 1569 usb_dma_t dma; 1570 1571 if (sc->sc_freetds == NULL) { 1572 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1573 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1574 UHCI_TD_ALIGN, &dma); 1575 if (err) 1576 return (0); 1577 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1578 offs = i * UHCI_STD_SIZE; 1579 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1580 std->physaddr = DMAADDR(&dma) + offs; 1581 std->link.std = sc->sc_freetds; 1582 sc->sc_freetds = std; 1583 } 1584 } 1585 std = sc->sc_freetds; 1586 sc->sc_freetds = std->link.std; 1587 memset(&std->td, 0, sizeof(uhci_td_t)); 1588 return std; 1589 } 1590 1591 void 1592 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1593 { 1594 #ifdef DIAGNOSTIC 1595 #define TD_IS_FREE 0x12345678 1596 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1597 printf("uhci_free_std: freeing free TD %p\n", std); 1598 return; 1599 } 1600 std->td.td_token = htole32(TD_IS_FREE); 1601 #endif 1602 std->link.std = sc->sc_freetds; 1603 sc->sc_freetds = std; 1604 } 1605 1606 uhci_soft_qh_t * 1607 uhci_alloc_sqh(uhci_softc_t *sc) 1608 { 1609 uhci_soft_qh_t *sqh; 1610 usbd_status err; 1611 int i, offs; 1612 usb_dma_t dma; 1613 1614 if (sc->sc_freeqhs == NULL) { 1615 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1616 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1617 UHCI_QH_ALIGN, &dma); 1618 if (err) 1619 return (0); 1620 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1621 offs = i * UHCI_SQH_SIZE; 1622 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1623 sqh->physaddr = DMAADDR(&dma) + offs; 1624 sqh->hlink = sc->sc_freeqhs; 1625 sc->sc_freeqhs = sqh; 1626 } 1627 } 1628 sqh = sc->sc_freeqhs; 1629 sc->sc_freeqhs = sqh->hlink; 1630 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1631 return (sqh); 1632 } 1633 1634 void 1635 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1636 { 1637 sqh->hlink = sc->sc_freeqhs; 1638 sc->sc_freeqhs = sqh; 1639 } 1640 1641 void 1642 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1643 uhci_soft_td_t *stdend) 1644 { 1645 uhci_soft_td_t *p; 1646 1647 for (; std != stdend; std = p) { 1648 p = std->link.std; 1649 uhci_free_std(sc, std); 1650 } 1651 } 1652 1653 usbd_status 1654 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1655 int rd, u_int16_t flags, usb_dma_t *dma, 1656 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1657 { 1658 uhci_soft_td_t *p, *lastp; 1659 uhci_physaddr_t lastlink; 1660 int i, ntd, l, tog, maxp; 1661 u_int32_t status; 1662 int addr = upipe->pipe.device->address; 1663 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1664 1665 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1666 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1667 upipe->pipe.device->lowspeed, flags)); 1668 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1669 if (maxp == 0) { 1670 printf("uhci_alloc_std_chain: maxp=0\n"); 1671 return (USBD_INVAL); 1672 } 1673 ntd = (len + maxp - 1) / maxp; 1674 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1675 ntd++; 1676 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1677 if (ntd == 0) { 1678 *sp = *ep = 0; 1679 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1680 return (USBD_NORMAL_COMPLETION); 1681 } 1682 tog = upipe->nexttoggle; 1683 if (ntd % 2 == 0) 1684 tog ^= 1; 1685 upipe->nexttoggle = tog ^ 1; 1686 lastp = NULL; 1687 lastlink = UHCI_PTR_T; 1688 ntd--; 1689 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1690 if (upipe->pipe.device->lowspeed) 1691 status |= UHCI_TD_LS; 1692 if (flags & USBD_SHORT_XFER_OK) 1693 status |= UHCI_TD_SPD; 1694 for (i = ntd; i >= 0; i--) { 1695 p = uhci_alloc_std(sc); 1696 if (p == NULL) { 1697 uhci_free_std_chain(sc, lastp, 0); 1698 return (USBD_NOMEM); 1699 } 1700 p->link.std = lastp; 1701 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1702 lastp = p; 1703 lastlink = p->physaddr; 1704 p->td.td_status = htole32(status); 1705 if (i == ntd) { 1706 /* last TD */ 1707 l = len % maxp; 1708 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1709 l = maxp; 1710 *ep = p; 1711 } else 1712 l = maxp; 1713 p->td.td_token = 1714 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1715 UHCI_TD_OUT(l, endpt, addr, tog)); 1716 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1717 tog ^= 1; 1718 } 1719 *sp = lastp; 1720 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1721 upipe->nexttoggle)); 1722 return (USBD_NORMAL_COMPLETION); 1723 } 1724 1725 void 1726 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1727 { 1728 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1729 upipe->nexttoggle = 0; 1730 } 1731 1732 void 1733 uhci_noop(usbd_pipe_handle pipe) 1734 { 1735 } 1736 1737 usbd_status 1738 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1739 { 1740 usbd_status err; 1741 1742 /* Insert last in queue. */ 1743 err = usb_insert_transfer(xfer); 1744 if (err) 1745 return (err); 1746 1747 /* 1748 * Pipe isn't running (otherwise err would be USBD_INPROG), 1749 * so start it first. 1750 */ 1751 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1752 } 1753 1754 usbd_status 1755 uhci_device_bulk_start(usbd_xfer_handle xfer) 1756 { 1757 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1758 usbd_device_handle dev = upipe->pipe.device; 1759 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1760 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1761 uhci_soft_td_t *data, *dataend; 1762 uhci_soft_qh_t *sqh; 1763 usbd_status err; 1764 int len, isread, endpt; 1765 int s; 1766 1767 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1768 xfer, xfer->length, xfer->flags)); 1769 1770 if (sc->sc_dying) 1771 return (USBD_IOERROR); 1772 1773 #ifdef DIAGNOSTIC 1774 if (xfer->rqflags & URQ_REQUEST) 1775 panic("uhci_device_bulk_transfer: a request\n"); 1776 #endif 1777 1778 len = xfer->length; 1779 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1780 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1781 sqh = upipe->u.bulk.sqh; 1782 1783 upipe->u.bulk.isread = isread; 1784 upipe->u.bulk.length = len; 1785 1786 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1787 &xfer->dmabuf, &data, &dataend); 1788 if (err) 1789 return (err); 1790 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1791 1792 #ifdef UHCI_DEBUG 1793 if (uhcidebug > 8) { 1794 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1795 uhci_dump_tds(data); 1796 } 1797 #endif 1798 1799 /* Set up interrupt info. */ 1800 ii->xfer = xfer; 1801 ii->stdstart = data; 1802 ii->stdend = dataend; 1803 #ifdef DIAGNOSTIC 1804 if (!ii->isdone) { 1805 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1806 } 1807 ii->isdone = 0; 1808 #endif 1809 1810 sqh->elink = data; 1811 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1812 1813 s = splusb(); 1814 uhci_add_bulk(sc, sqh); 1815 uhci_add_intr_info(sc, ii); 1816 1817 if (xfer->timeout && !sc->sc_bus.use_polling) { 1818 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1819 uhci_timeout, ii); 1820 } 1821 xfer->status = USBD_IN_PROGRESS; 1822 splx(s); 1823 1824 #ifdef UHCI_DEBUG 1825 if (uhcidebug > 10) { 1826 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1827 uhci_dump_tds(data); 1828 } 1829 #endif 1830 1831 if (sc->sc_bus.use_polling) 1832 uhci_waitintr(sc, xfer); 1833 1834 return (USBD_IN_PROGRESS); 1835 } 1836 1837 /* Abort a device bulk request. */ 1838 void 1839 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1840 { 1841 DPRINTF(("uhci_device_bulk_abort:\n")); 1842 uhci_abort_xfer(xfer, USBD_CANCELLED); 1843 } 1844 1845 /* 1846 * XXX This way of aborting is neither safe, nor good. 1847 * But it will have to do until I figure out what to do. 1848 * I apologize for the delay(). 1849 */ 1850 void 1851 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1852 { 1853 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1854 uhci_soft_td_t *std; 1855 int s; 1856 1857 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1858 1859 s = splusb(); 1860 1861 /* Transfer is already done. */ 1862 if (xfer->status != USBD_NOT_STARTED && 1863 xfer->status != USBD_IN_PROGRESS) { 1864 splx(s); 1865 return; 1866 } 1867 1868 /* Make interrupt routine ignore it, */ 1869 xfer->status = status; 1870 1871 /* don't timeout, */ 1872 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1873 1874 /* make hardware ignore it, */ 1875 for (std = ii->stdstart; std != NULL; std = std->link.std) 1876 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1877 1878 xfer->hcpriv = ii; 1879 1880 splx(s); 1881 1882 delay(1000); 1883 1884 s = splusb(); 1885 #ifdef DIAGNOSTIC 1886 ii->isdone = 1; 1887 #endif 1888 usb_transfer_complete(xfer); 1889 splx(s); 1890 } 1891 1892 /* Close a device bulk pipe. */ 1893 void 1894 uhci_device_bulk_close(usbd_pipe_handle pipe) 1895 { 1896 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1897 usbd_device_handle dev = upipe->pipe.device; 1898 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1899 1900 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1901 } 1902 1903 usbd_status 1904 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1905 { 1906 usbd_status err; 1907 1908 /* Insert last in queue. */ 1909 err = usb_insert_transfer(xfer); 1910 if (err) 1911 return (err); 1912 1913 /* 1914 * Pipe isn't running (otherwise err would be USBD_INPROG), 1915 * so start it first. 1916 */ 1917 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1918 } 1919 1920 usbd_status 1921 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1922 { 1923 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1924 usbd_status err; 1925 1926 if (sc->sc_dying) 1927 return (USBD_IOERROR); 1928 1929 #ifdef DIAGNOSTIC 1930 if (!(xfer->rqflags & URQ_REQUEST)) 1931 panic("uhci_device_ctrl_transfer: not a request\n"); 1932 #endif 1933 1934 err = uhci_device_request(xfer); 1935 if (err) 1936 return (err); 1937 1938 if (sc->sc_bus.use_polling) 1939 uhci_waitintr(sc, xfer); 1940 return (USBD_IN_PROGRESS); 1941 } 1942 1943 usbd_status 1944 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1945 { 1946 usbd_status err; 1947 1948 /* Insert last in queue. */ 1949 err = usb_insert_transfer(xfer); 1950 if (err) 1951 return (err); 1952 1953 /* 1954 * Pipe isn't running (otherwise err would be USBD_INPROG), 1955 * so start it first. 1956 */ 1957 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1958 } 1959 1960 usbd_status 1961 uhci_device_intr_start(usbd_xfer_handle xfer) 1962 { 1963 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1964 usbd_device_handle dev = upipe->pipe.device; 1965 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1966 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1967 uhci_soft_td_t *data, *dataend; 1968 uhci_soft_qh_t *sqh; 1969 usbd_status err; 1970 int i, s; 1971 1972 if (sc->sc_dying) 1973 return (USBD_IOERROR); 1974 1975 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1976 xfer, xfer->length, xfer->flags)); 1977 1978 #ifdef DIAGNOSTIC 1979 if (xfer->rqflags & URQ_REQUEST) 1980 panic("uhci_device_intr_transfer: a request\n"); 1981 #endif 1982 1983 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1984 &xfer->dmabuf, &data, &dataend); 1985 if (err) 1986 return (err); 1987 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1988 1989 #ifdef UHCI_DEBUG 1990 if (uhcidebug > 10) { 1991 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1992 uhci_dump_tds(data); 1993 uhci_dump_qh(upipe->u.intr.qhs[0]); 1994 } 1995 #endif 1996 1997 s = splusb(); 1998 /* Set up interrupt info. */ 1999 ii->xfer = xfer; 2000 ii->stdstart = data; 2001 ii->stdend = dataend; 2002 #ifdef DIAGNOSTIC 2003 if (!ii->isdone) { 2004 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2005 } 2006 ii->isdone = 0; 2007 #endif 2008 2009 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2010 upipe->u.intr.qhs[0])); 2011 for (i = 0; i < upipe->u.intr.npoll; i++) { 2012 sqh = upipe->u.intr.qhs[i]; 2013 sqh->elink = data; 2014 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2015 } 2016 uhci_add_intr_info(sc, ii); 2017 xfer->status = USBD_IN_PROGRESS; 2018 splx(s); 2019 2020 #ifdef UHCI_DEBUG 2021 if (uhcidebug > 10) { 2022 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2023 uhci_dump_tds(data); 2024 uhci_dump_qh(upipe->u.intr.qhs[0]); 2025 } 2026 #endif 2027 2028 return (USBD_IN_PROGRESS); 2029 } 2030 2031 /* Abort a device control request. */ 2032 void 2033 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2034 { 2035 DPRINTF(("uhci_device_ctrl_abort:\n")); 2036 uhci_abort_xfer(xfer, USBD_CANCELLED); 2037 } 2038 2039 /* Close a device control pipe. */ 2040 void 2041 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2042 { 2043 } 2044 2045 /* Abort a device interrupt request. */ 2046 void 2047 uhci_device_intr_abort(usbd_xfer_handle xfer) 2048 { 2049 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2050 if (xfer->pipe->intrxfer == xfer) { 2051 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2052 xfer->pipe->intrxfer = 0; 2053 } 2054 uhci_abort_xfer(xfer, USBD_CANCELLED); 2055 } 2056 2057 /* Close a device interrupt pipe. */ 2058 void 2059 uhci_device_intr_close(usbd_pipe_handle pipe) 2060 { 2061 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2062 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2063 int i, npoll; 2064 int s; 2065 2066 /* Unlink descriptors from controller data structures. */ 2067 npoll = upipe->u.intr.npoll; 2068 s = splusb(); 2069 for (i = 0; i < npoll; i++) 2070 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2071 splx(s); 2072 2073 /* 2074 * We now have to wait for any activity on the physical 2075 * descriptors to stop. 2076 */ 2077 usb_delay_ms(&sc->sc_bus, 2); 2078 2079 for(i = 0; i < npoll; i++) 2080 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2081 free(upipe->u.intr.qhs, M_USBHC); 2082 2083 /* XXX free other resources */ 2084 } 2085 2086 usbd_status 2087 uhci_device_request(usbd_xfer_handle xfer) 2088 { 2089 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2090 usb_device_request_t *req = &xfer->request; 2091 usbd_device_handle dev = upipe->pipe.device; 2092 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2093 int addr = dev->address; 2094 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2095 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2096 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2097 uhci_soft_qh_t *sqh; 2098 int len; 2099 u_int32_t ls; 2100 usbd_status err; 2101 int isread; 2102 int s; 2103 2104 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2105 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2106 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2107 UGETW(req->wIndex), UGETW(req->wLength), 2108 addr, endpt)); 2109 2110 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2111 isread = req->bmRequestType & UT_READ; 2112 len = UGETW(req->wLength); 2113 2114 setup = upipe->u.ctl.setup; 2115 stat = upipe->u.ctl.stat; 2116 sqh = upipe->u.ctl.sqh; 2117 2118 /* Set up data transaction */ 2119 if (len != 0) { 2120 upipe->nexttoggle = 1; 2121 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2122 &xfer->dmabuf, &data, &dataend); 2123 if (err) 2124 return (err); 2125 next = data; 2126 dataend->link.std = stat; 2127 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2128 } else { 2129 next = stat; 2130 } 2131 upipe->u.ctl.length = len; 2132 2133 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2134 2135 setup->link.std = next; 2136 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2137 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2138 UHCI_TD_ACTIVE); 2139 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2140 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2141 2142 stat->link.std = NULL; 2143 stat->td.td_link = htole32(UHCI_PTR_T); 2144 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2145 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2146 stat->td.td_token = 2147 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2148 UHCI_TD_IN (0, endpt, addr, 1)); 2149 stat->td.td_buffer = htole32(0); 2150 2151 #ifdef UHCI_DEBUG 2152 if (uhcidebug > 10) { 2153 DPRINTF(("uhci_device_request: before transfer\n")); 2154 uhci_dump_tds(setup); 2155 } 2156 #endif 2157 2158 /* Set up interrupt info. */ 2159 ii->xfer = xfer; 2160 ii->stdstart = setup; 2161 ii->stdend = stat; 2162 #ifdef DIAGNOSTIC 2163 if (!ii->isdone) { 2164 printf("uhci_device_request: not done, ii=%p\n", ii); 2165 } 2166 ii->isdone = 0; 2167 #endif 2168 2169 sqh->elink = setup; 2170 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2171 2172 s = splusb(); 2173 if (dev->lowspeed) 2174 uhci_add_ls_ctrl(sc, sqh); 2175 else 2176 uhci_add_hs_ctrl(sc, sqh); 2177 uhci_add_intr_info(sc, ii); 2178 #ifdef UHCI_DEBUG 2179 if (uhcidebug > 12) { 2180 uhci_soft_td_t *std; 2181 uhci_soft_qh_t *xqh; 2182 uhci_soft_qh_t *sxqh; 2183 int maxqh = 0; 2184 uhci_physaddr_t link; 2185 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2186 for (std = sc->sc_vframes[0].htd, link = 0; 2187 (link & UHCI_PTR_QH) == 0; 2188 std = std->link.std) { 2189 link = le32toh(std->td.td_link); 2190 uhci_dump_td(std); 2191 } 2192 sxqh = (uhci_soft_qh_t *)std; 2193 uhci_dump_qh(sxqh); 2194 for (xqh = sxqh; 2195 xqh != NULL; 2196 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2197 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2198 uhci_dump_qh(xqh); 2199 } 2200 DPRINTF(("Enqueued QH:\n")); 2201 uhci_dump_qh(sqh); 2202 uhci_dump_tds(sqh->elink); 2203 } 2204 #endif 2205 if (xfer->timeout && !sc->sc_bus.use_polling) { 2206 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2207 uhci_timeout, ii); 2208 } 2209 xfer->status = USBD_IN_PROGRESS; 2210 splx(s); 2211 2212 return (USBD_NORMAL_COMPLETION); 2213 } 2214 2215 usbd_status 2216 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2217 { 2218 usbd_status err; 2219 2220 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2221 2222 /* Put it on our queue, */ 2223 err = usb_insert_transfer(xfer); 2224 2225 /* bail out on error, */ 2226 if (err && err != USBD_IN_PROGRESS) 2227 return (err); 2228 2229 /* XXX should check inuse here */ 2230 2231 /* insert into schedule, */ 2232 uhci_device_isoc_enter(xfer); 2233 2234 /* and start if the pipe wasn't running */ 2235 if (!err) 2236 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2237 2238 return (err); 2239 } 2240 2241 void 2242 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2243 { 2244 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2245 usbd_device_handle dev = upipe->pipe.device; 2246 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2247 struct iso *iso = &upipe->u.iso; 2248 uhci_soft_td_t *std; 2249 u_int32_t buf, len, status; 2250 int s, i, next, nframes; 2251 2252 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2253 "nframes=%d\n", 2254 iso->inuse, iso->next, xfer, xfer->nframes)); 2255 2256 if (sc->sc_dying) 2257 return; 2258 2259 if (xfer->status == USBD_IN_PROGRESS) { 2260 /* This request has already been entered into the frame list */ 2261 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2262 /* XXX */ 2263 } 2264 2265 #ifdef DIAGNOSTIC 2266 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2267 printf("uhci_device_isoc_enter: overflow!\n"); 2268 #endif 2269 2270 next = iso->next; 2271 if (next == -1) { 2272 /* Not in use yet, schedule it a few frames ahead. */ 2273 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2274 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2275 } 2276 2277 xfer->status = USBD_IN_PROGRESS; 2278 UXFER(xfer)->curframe = next; 2279 2280 buf = DMAADDR(&xfer->dmabuf); 2281 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2282 UHCI_TD_ACTIVE | 2283 UHCI_TD_IOS); 2284 nframes = xfer->nframes; 2285 s = splusb(); 2286 for (i = 0; i < nframes; i++) { 2287 std = iso->stds[next]; 2288 if (++next >= UHCI_VFRAMELIST_COUNT) 2289 next = 0; 2290 len = xfer->frlengths[i]; 2291 std->td.td_buffer = htole32(buf); 2292 if (i == nframes - 1) 2293 status |= UHCI_TD_IOC; 2294 std->td.td_status = htole32(status); 2295 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2296 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2297 #ifdef UHCI_DEBUG 2298 if (uhcidebug > 5) { 2299 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2300 uhci_dump_td(std); 2301 } 2302 #endif 2303 buf += len; 2304 } 2305 iso->next = next; 2306 iso->inuse += xfer->nframes; 2307 2308 splx(s); 2309 } 2310 2311 usbd_status 2312 uhci_device_isoc_start(usbd_xfer_handle xfer) 2313 { 2314 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2315 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2316 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2317 uhci_soft_td_t *end; 2318 int s, i; 2319 2320 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2321 2322 if (sc->sc_dying) 2323 return (USBD_IOERROR); 2324 2325 #ifdef DIAGNOSTIC 2326 if (xfer->status != USBD_IN_PROGRESS) 2327 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2328 #endif 2329 2330 /* Find the last TD */ 2331 i = UXFER(xfer)->curframe + xfer->nframes; 2332 if (i >= UHCI_VFRAMELIST_COUNT) 2333 i -= UHCI_VFRAMELIST_COUNT; 2334 end = upipe->u.iso.stds[i]; 2335 2336 #ifdef DIAGNOSTIC 2337 if (end == NULL) { 2338 printf("uhci_device_isoc_start: end == NULL\n"); 2339 return (USBD_INVAL); 2340 } 2341 #endif 2342 2343 s = splusb(); 2344 2345 /* Set up interrupt info. */ 2346 ii->xfer = xfer; 2347 ii->stdstart = end; 2348 ii->stdend = end; 2349 #ifdef DIAGNOSTIC 2350 if (!ii->isdone) 2351 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2352 ii->isdone = 0; 2353 #endif 2354 uhci_add_intr_info(sc, ii); 2355 2356 splx(s); 2357 2358 return (USBD_IN_PROGRESS); 2359 } 2360 2361 void 2362 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2363 { 2364 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2365 uhci_soft_td_t **stds = upipe->u.iso.stds; 2366 uhci_soft_td_t *std; 2367 int i, n, s, nframes, maxlen, len; 2368 2369 s = splusb(); 2370 2371 /* Transfer is already done. */ 2372 if (xfer->status != USBD_NOT_STARTED && 2373 xfer->status != USBD_IN_PROGRESS) { 2374 splx(s); 2375 return; 2376 } 2377 2378 /* Give xfer the requested abort code. */ 2379 xfer->status = USBD_CANCELLED; 2380 2381 /* make hardware ignore it, */ 2382 nframes = xfer->nframes; 2383 n = UXFER(xfer)->curframe; 2384 maxlen = 0; 2385 for (i = 0; i < nframes; i++) { 2386 std = stds[n]; 2387 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2388 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2389 if (len > maxlen) 2390 maxlen = len; 2391 if (++n >= UHCI_VFRAMELIST_COUNT) 2392 n = 0; 2393 } 2394 2395 /* and wait until we are sure the hardware has finished. */ 2396 delay(maxlen); 2397 2398 #ifdef DIAGNOSTIC 2399 UXFER(xfer)->iinfo.isdone = 1; 2400 #endif 2401 /* Run callback and remove from interrupt list. */ 2402 usb_transfer_complete(xfer); 2403 2404 splx(s); 2405 } 2406 2407 void 2408 uhci_device_isoc_close(usbd_pipe_handle pipe) 2409 { 2410 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2411 usbd_device_handle dev = upipe->pipe.device; 2412 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2413 uhci_soft_td_t *std, *vstd; 2414 struct iso *iso; 2415 int i, s; 2416 2417 /* 2418 * Make sure all TDs are marked as inactive. 2419 * Wait for completion. 2420 * Unschedule. 2421 * Deallocate. 2422 */ 2423 iso = &upipe->u.iso; 2424 2425 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2426 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2427 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2428 2429 s = splusb(); 2430 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2431 std = iso->stds[i]; 2432 for (vstd = sc->sc_vframes[i].htd; 2433 vstd != NULL && vstd->link.std != std; 2434 vstd = vstd->link.std) 2435 ; 2436 if (vstd == NULL) { 2437 /*panic*/ 2438 printf("uhci_device_isoc_close: %p not found\n", std); 2439 splx(s); 2440 return; 2441 } 2442 vstd->link = std->link; 2443 vstd->td.td_link = std->td.td_link; 2444 uhci_free_std(sc, std); 2445 } 2446 splx(s); 2447 2448 free(iso->stds, M_USBHC); 2449 } 2450 2451 usbd_status 2452 uhci_setup_isoc(usbd_pipe_handle pipe) 2453 { 2454 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2455 usbd_device_handle dev = upipe->pipe.device; 2456 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2457 int addr = upipe->pipe.device->address; 2458 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2459 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2460 uhci_soft_td_t *std, *vstd; 2461 u_int32_t token; 2462 struct iso *iso; 2463 int i, s; 2464 2465 iso = &upipe->u.iso; 2466 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2467 M_USBHC, M_WAITOK); 2468 2469 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2470 UHCI_TD_OUT(0, endpt, addr, 0); 2471 2472 /* Allocate the TDs and mark as inactive; */ 2473 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2474 std = uhci_alloc_std(sc); 2475 if (std == 0) 2476 goto bad; 2477 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2478 std->td.td_token = htole32(token); 2479 iso->stds[i] = std; 2480 } 2481 2482 /* Insert TDs into schedule. */ 2483 s = splusb(); 2484 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2485 std = iso->stds[i]; 2486 vstd = sc->sc_vframes[i].htd; 2487 std->link = vstd->link; 2488 std->td.td_link = vstd->td.td_link; 2489 vstd->link.std = std; 2490 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2491 } 2492 splx(s); 2493 2494 iso->next = -1; 2495 iso->inuse = 0; 2496 2497 return (USBD_NORMAL_COMPLETION); 2498 2499 bad: 2500 while (--i >= 0) 2501 uhci_free_std(sc, iso->stds[i]); 2502 free(iso->stds, M_USBHC); 2503 return (USBD_NOMEM); 2504 } 2505 2506 void 2507 uhci_device_isoc_done(usbd_xfer_handle xfer) 2508 { 2509 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2510 2511 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2512 2513 if (ii->xfer != xfer) 2514 /* Not on interrupt list, ignore it. */ 2515 return; 2516 2517 #ifdef DIAGNOSTIC 2518 if (xfer->busy_free != XFER_BUSY) { 2519 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2520 xfer, xfer->busy_free); 2521 return; 2522 } 2523 2524 if (ii->stdend == NULL) { 2525 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2526 #ifdef UHCI_DEBUG 2527 uhci_dump_ii(ii); 2528 #endif 2529 return; 2530 } 2531 #endif 2532 2533 /* Turn off the interrupt since it is active even if the TD is not. */ 2534 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2535 2536 uhci_del_intr_info(ii); /* remove from active list */ 2537 } 2538 2539 void 2540 uhci_device_intr_done(usbd_xfer_handle xfer) 2541 { 2542 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2543 uhci_softc_t *sc = ii->sc; 2544 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2545 uhci_soft_qh_t *sqh; 2546 int i, npoll; 2547 2548 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2549 2550 npoll = upipe->u.intr.npoll; 2551 for(i = 0; i < npoll; i++) { 2552 sqh = upipe->u.intr.qhs[i]; 2553 sqh->elink = NULL; 2554 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2555 } 2556 uhci_free_std_chain(sc, ii->stdstart, 0); 2557 2558 /* XXX Wasteful. */ 2559 if (xfer->pipe->repeat) { 2560 uhci_soft_td_t *data, *dataend; 2561 2562 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2563 2564 /* This alloc cannot fail since we freed the chain above. */ 2565 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2566 &xfer->dmabuf, &data, &dataend); 2567 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2568 2569 #ifdef UHCI_DEBUG 2570 if (uhcidebug > 10) { 2571 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2572 uhci_dump_tds(data); 2573 uhci_dump_qh(upipe->u.intr.qhs[0]); 2574 } 2575 #endif 2576 2577 ii->stdstart = data; 2578 ii->stdend = dataend; 2579 #ifdef DIAGNOSTIC 2580 if (!ii->isdone) { 2581 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2582 } 2583 ii->isdone = 0; 2584 #endif 2585 for (i = 0; i < npoll; i++) { 2586 sqh = upipe->u.intr.qhs[i]; 2587 sqh->elink = data; 2588 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2589 } 2590 xfer->status = USBD_IN_PROGRESS; 2591 /* The ii is already on the examined list, just leave it. */ 2592 } else { 2593 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2594 uhci_del_intr_info(ii); 2595 } 2596 } 2597 2598 /* Deallocate request data structures */ 2599 void 2600 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2601 { 2602 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2603 uhci_softc_t *sc = ii->sc; 2604 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2605 2606 #ifdef DIAGNOSTIC 2607 if (!(xfer->rqflags & URQ_REQUEST)) 2608 panic("uhci_ctrl_done: not a request\n"); 2609 #endif 2610 2611 uhci_del_intr_info(ii); /* remove from active list */ 2612 2613 if (upipe->pipe.device->lowspeed) 2614 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2615 else 2616 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2617 2618 if (upipe->u.ctl.length != 0) 2619 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2620 2621 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2622 } 2623 2624 /* Deallocate request data structures */ 2625 void 2626 uhci_device_bulk_done(usbd_xfer_handle xfer) 2627 { 2628 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2629 uhci_softc_t *sc = ii->sc; 2630 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2631 2632 uhci_del_intr_info(ii); /* remove from active list */ 2633 2634 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2635 2636 uhci_free_std_chain(sc, ii->stdstart, 0); 2637 2638 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2639 } 2640 2641 /* Add interrupt QH, called with vflock. */ 2642 void 2643 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2644 { 2645 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2646 uhci_soft_qh_t *eqh; 2647 2648 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2649 2650 eqh = vf->eqh; 2651 sqh->hlink = eqh->hlink; 2652 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2653 eqh->hlink = sqh; 2654 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2655 vf->eqh = sqh; 2656 vf->bandwidth++; 2657 } 2658 2659 /* Remove interrupt QH. */ 2660 void 2661 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2662 { 2663 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2664 uhci_soft_qh_t *pqh; 2665 2666 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2667 2668 /* See comment in uhci_remove_ctrl() */ 2669 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2670 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2671 delay(UHCI_QH_REMOVE_DELAY); 2672 } 2673 2674 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2675 pqh->hlink = sqh->hlink; 2676 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2677 delay(UHCI_QH_REMOVE_DELAY); 2678 if (vf->eqh == sqh) 2679 vf->eqh = pqh; 2680 vf->bandwidth--; 2681 } 2682 2683 usbd_status 2684 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2685 { 2686 uhci_soft_qh_t *sqh; 2687 int i, npoll, s; 2688 u_int bestbw, bw, bestoffs, offs; 2689 2690 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2691 if (ival == 0) { 2692 printf("uhci_setintr: 0 interval\n"); 2693 return (USBD_INVAL); 2694 } 2695 2696 if (ival > UHCI_VFRAMELIST_COUNT) 2697 ival = UHCI_VFRAMELIST_COUNT; 2698 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2699 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2700 2701 upipe->u.intr.npoll = npoll; 2702 upipe->u.intr.qhs = 2703 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2704 2705 /* 2706 * Figure out which offset in the schedule that has most 2707 * bandwidth left over. 2708 */ 2709 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2710 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2711 for (bw = i = 0; i < npoll; i++) 2712 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2713 if (bw < bestbw) { 2714 bestbw = bw; 2715 bestoffs = offs; 2716 } 2717 } 2718 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2719 2720 for(i = 0; i < npoll; i++) { 2721 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2722 sqh->elink = NULL; 2723 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2724 sqh->pos = MOD(i * ival + bestoffs); 2725 } 2726 #undef MOD 2727 2728 s = splusb(); 2729 /* Enter QHs into the controller data structures. */ 2730 for(i = 0; i < npoll; i++) 2731 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2732 splx(s); 2733 2734 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2735 return (USBD_NORMAL_COMPLETION); 2736 } 2737 2738 /* Open a new pipe. */ 2739 usbd_status 2740 uhci_open(usbd_pipe_handle pipe) 2741 { 2742 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2743 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2744 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2745 usbd_status err; 2746 int ival; 2747 2748 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2749 pipe, pipe->device->address, 2750 ed->bEndpointAddress, sc->sc_addr)); 2751 2752 upipe->aborting = 0; 2753 upipe->nexttoggle = 0; 2754 2755 if (pipe->device->address == sc->sc_addr) { 2756 switch (ed->bEndpointAddress) { 2757 case USB_CONTROL_ENDPOINT: 2758 pipe->methods = &uhci_root_ctrl_methods; 2759 break; 2760 case UE_DIR_IN | UHCI_INTR_ENDPT: 2761 pipe->methods = &uhci_root_intr_methods; 2762 break; 2763 default: 2764 return (USBD_INVAL); 2765 } 2766 } else { 2767 switch (ed->bmAttributes & UE_XFERTYPE) { 2768 case UE_CONTROL: 2769 pipe->methods = &uhci_device_ctrl_methods; 2770 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2771 if (upipe->u.ctl.sqh == NULL) 2772 goto bad; 2773 upipe->u.ctl.setup = uhci_alloc_std(sc); 2774 if (upipe->u.ctl.setup == NULL) { 2775 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2776 goto bad; 2777 } 2778 upipe->u.ctl.stat = uhci_alloc_std(sc); 2779 if (upipe->u.ctl.stat == NULL) { 2780 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2781 uhci_free_std(sc, upipe->u.ctl.setup); 2782 goto bad; 2783 } 2784 err = usb_allocmem(&sc->sc_bus, 2785 sizeof(usb_device_request_t), 2786 0, &upipe->u.ctl.reqdma); 2787 if (err) { 2788 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2789 uhci_free_std(sc, upipe->u.ctl.setup); 2790 uhci_free_std(sc, upipe->u.ctl.stat); 2791 goto bad; 2792 } 2793 break; 2794 case UE_INTERRUPT: 2795 pipe->methods = &uhci_device_intr_methods; 2796 ival = pipe->interval; 2797 if (ival == USBD_DEFAULT_INTERVAL) 2798 ival = ed->bInterval; 2799 return (uhci_device_setintr(sc, upipe, ival)); 2800 case UE_ISOCHRONOUS: 2801 pipe->methods = &uhci_device_isoc_methods; 2802 return (uhci_setup_isoc(pipe)); 2803 case UE_BULK: 2804 pipe->methods = &uhci_device_bulk_methods; 2805 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2806 if (upipe->u.bulk.sqh == NULL) 2807 goto bad; 2808 break; 2809 } 2810 } 2811 return (USBD_NORMAL_COMPLETION); 2812 2813 bad: 2814 return (USBD_NOMEM); 2815 } 2816 2817 /* 2818 * Data structures and routines to emulate the root hub. 2819 */ 2820 usb_device_descriptor_t uhci_devd = { 2821 USB_DEVICE_DESCRIPTOR_SIZE, 2822 UDESC_DEVICE, /* type */ 2823 {0x00, 0x01}, /* USB version */ 2824 UDCLASS_HUB, /* class */ 2825 UDSUBCLASS_HUB, /* subclass */ 2826 0, /* protocol */ 2827 64, /* max packet */ 2828 {0},{0},{0x00,0x01}, /* device id */ 2829 1,2,0, /* string indicies */ 2830 1 /* # of configurations */ 2831 }; 2832 2833 usb_config_descriptor_t uhci_confd = { 2834 USB_CONFIG_DESCRIPTOR_SIZE, 2835 UDESC_CONFIG, 2836 {USB_CONFIG_DESCRIPTOR_SIZE + 2837 USB_INTERFACE_DESCRIPTOR_SIZE + 2838 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2839 1, 2840 1, 2841 0, 2842 UC_SELF_POWERED, 2843 0 /* max power */ 2844 }; 2845 2846 usb_interface_descriptor_t uhci_ifcd = { 2847 USB_INTERFACE_DESCRIPTOR_SIZE, 2848 UDESC_INTERFACE, 2849 0, 2850 0, 2851 1, 2852 UICLASS_HUB, 2853 UISUBCLASS_HUB, 2854 0, 2855 0 2856 }; 2857 2858 usb_endpoint_descriptor_t uhci_endpd = { 2859 USB_ENDPOINT_DESCRIPTOR_SIZE, 2860 UDESC_ENDPOINT, 2861 UE_DIR_IN | UHCI_INTR_ENDPT, 2862 UE_INTERRUPT, 2863 {8}, 2864 255 2865 }; 2866 2867 usb_hub_descriptor_t uhci_hubd_piix = { 2868 USB_HUB_DESCRIPTOR_SIZE, 2869 UDESC_HUB, 2870 2, 2871 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2872 50, /* power on to power good */ 2873 0, 2874 { 0x00 }, /* both ports are removable */ 2875 }; 2876 2877 int 2878 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2879 { 2880 int i; 2881 2882 if (l == 0) 2883 return (0); 2884 p->bLength = 2 * strlen(s) + 2; 2885 if (l == 1) 2886 return (1); 2887 p->bDescriptorType = UDESC_STRING; 2888 l -= 2; 2889 for (i = 0; s[i] && l > 1; i++, l -= 2) 2890 USETW2(p->bString[i], 0, s[i]); 2891 return (2*i+2); 2892 } 2893 2894 /* 2895 * Simulate a hardware hub by handling all the necessary requests. 2896 */ 2897 usbd_status 2898 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2899 { 2900 usbd_status err; 2901 2902 /* Insert last in queue. */ 2903 err = usb_insert_transfer(xfer); 2904 if (err) 2905 return (err); 2906 2907 /* 2908 * Pipe isn't running (otherwise err would be USBD_INPROG), 2909 * so start it first. 2910 */ 2911 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2912 } 2913 2914 usbd_status 2915 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2916 { 2917 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2918 usb_device_request_t *req; 2919 void *buf = NULL; 2920 int port, x; 2921 int s, len, value, index, status, change, l, totlen = 0; 2922 usb_port_status_t ps; 2923 usbd_status err; 2924 2925 if (sc->sc_dying) 2926 return (USBD_IOERROR); 2927 2928 #ifdef DIAGNOSTIC 2929 if (!(xfer->rqflags & URQ_REQUEST)) 2930 panic("uhci_root_ctrl_transfer: not a request\n"); 2931 #endif 2932 req = &xfer->request; 2933 2934 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2935 req->bmRequestType, req->bRequest)); 2936 2937 len = UGETW(req->wLength); 2938 value = UGETW(req->wValue); 2939 index = UGETW(req->wIndex); 2940 2941 if (len != 0) 2942 buf = KERNADDR(&xfer->dmabuf); 2943 2944 #define C(x,y) ((x) | ((y) << 8)) 2945 switch(C(req->bRequest, req->bmRequestType)) { 2946 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2947 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2948 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2949 /* 2950 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2951 * for the integrated root hub. 2952 */ 2953 break; 2954 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2955 if (len > 0) { 2956 *(u_int8_t *)buf = sc->sc_conf; 2957 totlen = 1; 2958 } 2959 break; 2960 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2961 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2962 switch(value >> 8) { 2963 case UDESC_DEVICE: 2964 if ((value & 0xff) != 0) { 2965 err = USBD_IOERROR; 2966 goto ret; 2967 } 2968 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2969 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2970 memcpy(buf, &uhci_devd, l); 2971 break; 2972 case UDESC_CONFIG: 2973 if ((value & 0xff) != 0) { 2974 err = USBD_IOERROR; 2975 goto ret; 2976 } 2977 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2978 memcpy(buf, &uhci_confd, l); 2979 buf = (char *)buf + l; 2980 len -= l; 2981 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2982 totlen += l; 2983 memcpy(buf, &uhci_ifcd, l); 2984 buf = (char *)buf + l; 2985 len -= l; 2986 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2987 totlen += l; 2988 memcpy(buf, &uhci_endpd, l); 2989 break; 2990 case UDESC_STRING: 2991 if (len == 0) 2992 break; 2993 *(u_int8_t *)buf = 0; 2994 totlen = 1; 2995 switch (value & 0xff) { 2996 case 1: /* Vendor */ 2997 totlen = uhci_str(buf, len, sc->sc_vendor); 2998 break; 2999 case 2: /* Product */ 3000 totlen = uhci_str(buf, len, "UHCI root hub"); 3001 break; 3002 } 3003 break; 3004 default: 3005 err = USBD_IOERROR; 3006 goto ret; 3007 } 3008 break; 3009 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3010 if (len > 0) { 3011 *(u_int8_t *)buf = 0; 3012 totlen = 1; 3013 } 3014 break; 3015 case C(UR_GET_STATUS, UT_READ_DEVICE): 3016 if (len > 1) { 3017 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3018 totlen = 2; 3019 } 3020 break; 3021 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3022 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3023 if (len > 1) { 3024 USETW(((usb_status_t *)buf)->wStatus, 0); 3025 totlen = 2; 3026 } 3027 break; 3028 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3029 if (value >= USB_MAX_DEVICES) { 3030 err = USBD_IOERROR; 3031 goto ret; 3032 } 3033 sc->sc_addr = value; 3034 break; 3035 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3036 if (value != 0 && value != 1) { 3037 err = USBD_IOERROR; 3038 goto ret; 3039 } 3040 sc->sc_conf = value; 3041 break; 3042 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3043 break; 3044 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3045 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3046 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3047 err = USBD_IOERROR; 3048 goto ret; 3049 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3050 break; 3051 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3052 break; 3053 /* Hub requests */ 3054 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3055 break; 3056 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3057 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3058 "port=%d feature=%d\n", 3059 index, value)); 3060 if (index == 1) 3061 port = UHCI_PORTSC1; 3062 else if (index == 2) 3063 port = UHCI_PORTSC2; 3064 else { 3065 err = USBD_IOERROR; 3066 goto ret; 3067 } 3068 switch(value) { 3069 case UHF_PORT_ENABLE: 3070 x = URWMASK(UREAD2(sc, port)); 3071 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3072 break; 3073 case UHF_PORT_SUSPEND: 3074 x = URWMASK(UREAD2(sc, port)); 3075 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3076 break; 3077 case UHF_PORT_RESET: 3078 x = URWMASK(UREAD2(sc, port)); 3079 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3080 break; 3081 case UHF_C_PORT_CONNECTION: 3082 x = URWMASK(UREAD2(sc, port)); 3083 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3084 break; 3085 case UHF_C_PORT_ENABLE: 3086 x = URWMASK(UREAD2(sc, port)); 3087 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3088 break; 3089 case UHF_C_PORT_OVER_CURRENT: 3090 x = URWMASK(UREAD2(sc, port)); 3091 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3092 break; 3093 case UHF_C_PORT_RESET: 3094 sc->sc_isreset = 0; 3095 err = USBD_NORMAL_COMPLETION; 3096 goto ret; 3097 case UHF_PORT_CONNECTION: 3098 case UHF_PORT_OVER_CURRENT: 3099 case UHF_PORT_POWER: 3100 case UHF_PORT_LOW_SPEED: 3101 case UHF_C_PORT_SUSPEND: 3102 default: 3103 err = USBD_IOERROR; 3104 goto ret; 3105 } 3106 break; 3107 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3108 if (index == 1) 3109 port = UHCI_PORTSC1; 3110 else if (index == 2) 3111 port = UHCI_PORTSC2; 3112 else { 3113 err = USBD_IOERROR; 3114 goto ret; 3115 } 3116 if (len > 0) { 3117 *(u_int8_t *)buf = 3118 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3119 UHCI_PORTSC_LS_SHIFT; 3120 totlen = 1; 3121 } 3122 break; 3123 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3124 if (value != 0) { 3125 err = USBD_IOERROR; 3126 goto ret; 3127 } 3128 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3129 totlen = l; 3130 memcpy(buf, &uhci_hubd_piix, l); 3131 break; 3132 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3133 if (len != 4) { 3134 err = USBD_IOERROR; 3135 goto ret; 3136 } 3137 memset(buf, 0, len); 3138 totlen = len; 3139 break; 3140 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3141 if (index == 1) 3142 port = UHCI_PORTSC1; 3143 else if (index == 2) 3144 port = UHCI_PORTSC2; 3145 else { 3146 err = USBD_IOERROR; 3147 goto ret; 3148 } 3149 if (len != 4) { 3150 err = USBD_IOERROR; 3151 goto ret; 3152 } 3153 x = UREAD2(sc, port); 3154 status = change = 0; 3155 if (x & UHCI_PORTSC_CCS ) 3156 status |= UPS_CURRENT_CONNECT_STATUS; 3157 if (x & UHCI_PORTSC_CSC ) 3158 change |= UPS_C_CONNECT_STATUS; 3159 if (x & UHCI_PORTSC_PE ) 3160 status |= UPS_PORT_ENABLED; 3161 if (x & UHCI_PORTSC_POEDC) 3162 change |= UPS_C_PORT_ENABLED; 3163 if (x & UHCI_PORTSC_OCI ) 3164 status |= UPS_OVERCURRENT_INDICATOR; 3165 if (x & UHCI_PORTSC_OCIC ) 3166 change |= UPS_C_OVERCURRENT_INDICATOR; 3167 if (x & UHCI_PORTSC_SUSP ) 3168 status |= UPS_SUSPEND; 3169 if (x & UHCI_PORTSC_LSDA ) 3170 status |= UPS_LOW_SPEED; 3171 status |= UPS_PORT_POWER; 3172 if (sc->sc_isreset) 3173 change |= UPS_C_PORT_RESET; 3174 USETW(ps.wPortStatus, status); 3175 USETW(ps.wPortChange, change); 3176 l = min(len, sizeof ps); 3177 memcpy(buf, &ps, l); 3178 totlen = l; 3179 break; 3180 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3181 err = USBD_IOERROR; 3182 goto ret; 3183 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3184 break; 3185 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3186 if (index == 1) 3187 port = UHCI_PORTSC1; 3188 else if (index == 2) 3189 port = UHCI_PORTSC2; 3190 else { 3191 err = USBD_IOERROR; 3192 goto ret; 3193 } 3194 switch(value) { 3195 case UHF_PORT_ENABLE: 3196 x = URWMASK(UREAD2(sc, port)); 3197 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3198 break; 3199 case UHF_PORT_SUSPEND: 3200 x = URWMASK(UREAD2(sc, port)); 3201 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3202 break; 3203 case UHF_PORT_RESET: 3204 x = URWMASK(UREAD2(sc, port)); 3205 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3206 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3207 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3208 delay(100); 3209 x = UREAD2(sc, port); 3210 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3211 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3212 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3213 index, UREAD2(sc, port))); 3214 sc->sc_isreset = 1; 3215 break; 3216 case UHF_PORT_POWER: 3217 /* Pretend we turned on power */ 3218 err = USBD_NORMAL_COMPLETION; 3219 goto ret; 3220 case UHF_C_PORT_CONNECTION: 3221 case UHF_C_PORT_ENABLE: 3222 case UHF_C_PORT_OVER_CURRENT: 3223 case UHF_PORT_CONNECTION: 3224 case UHF_PORT_OVER_CURRENT: 3225 case UHF_PORT_LOW_SPEED: 3226 case UHF_C_PORT_SUSPEND: 3227 case UHF_C_PORT_RESET: 3228 default: 3229 err = USBD_IOERROR; 3230 goto ret; 3231 } 3232 break; 3233 default: 3234 err = USBD_IOERROR; 3235 goto ret; 3236 } 3237 xfer->actlen = totlen; 3238 err = USBD_NORMAL_COMPLETION; 3239 ret: 3240 xfer->status = err; 3241 s = splusb(); 3242 usb_transfer_complete(xfer); 3243 splx(s); 3244 return (USBD_IN_PROGRESS); 3245 } 3246 3247 /* Abort a root control request. */ 3248 void 3249 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3250 { 3251 /* Nothing to do, all transfers are synchronous. */ 3252 } 3253 3254 /* Close the root pipe. */ 3255 void 3256 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3257 { 3258 DPRINTF(("uhci_root_ctrl_close\n")); 3259 } 3260 3261 /* Abort a root interrupt request. */ 3262 void 3263 uhci_root_intr_abort(usbd_xfer_handle xfer) 3264 { 3265 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3266 3267 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3268 sc->sc_intr_xfer = NULL; 3269 3270 if (xfer->pipe->intrxfer == xfer) { 3271 DPRINTF(("uhci_root_intr_abort: remove\n")); 3272 xfer->pipe->intrxfer = 0; 3273 } 3274 xfer->status = USBD_CANCELLED; 3275 #ifdef DIAGNOSTIC 3276 UXFER(xfer)->iinfo.isdone = 1; 3277 #endif 3278 usb_transfer_complete(xfer); 3279 } 3280 3281 usbd_status 3282 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3283 { 3284 usbd_status err; 3285 3286 /* Insert last in queue. */ 3287 err = usb_insert_transfer(xfer); 3288 if (err) 3289 return (err); 3290 3291 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3292 * start first 3293 */ 3294 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3295 } 3296 3297 /* Start a transfer on the root interrupt pipe */ 3298 usbd_status 3299 uhci_root_intr_start(usbd_xfer_handle xfer) 3300 { 3301 usbd_pipe_handle pipe = xfer->pipe; 3302 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3303 3304 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3305 xfer, xfer->length, xfer->flags)); 3306 3307 if (sc->sc_dying) 3308 return (USBD_IOERROR); 3309 3310 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3311 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3312 sc->sc_intr_xfer = xfer; 3313 return (USBD_IN_PROGRESS); 3314 } 3315 3316 /* Close the root interrupt pipe. */ 3317 void 3318 uhci_root_intr_close(usbd_pipe_handle pipe) 3319 { 3320 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3321 3322 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3323 sc->sc_intr_xfer = NULL; 3324 DPRINTF(("uhci_root_intr_close\n")); 3325 } 3326
Indexes created Tue Sep 30 20:09:53 GMT 2025