uhci.c revision 1.142
1 /* $NetBSD: uhci.c,v 1.142 2001/10/25 02:08:13 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_globalreset(uhci_softc_t *); 162 Static void uhci_reset(uhci_softc_t *); 163 Static void uhci_shutdown(void *v); 164 Static void uhci_power(int, void *); 165 Static usbd_status uhci_run(uhci_softc_t *, int run); 166 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 167 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 168 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 169 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 170 #if 0 171 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 172 uhci_intr_info_t *); 173 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 174 #endif 175 176 Static void uhci_free_std_chain(uhci_softc_t *, 177 uhci_soft_td_t *, uhci_soft_td_t *); 178 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 179 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 180 uhci_soft_td_t **, uhci_soft_td_t **); 181 Static void uhci_poll_hub(void *); 182 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 183 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 184 Static void uhci_idone(uhci_intr_info_t *); 185 186 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 187 188 Static void uhci_timeout(void *); 189 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 190 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 191 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 192 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 193 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 194 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 195 Static int uhci_str(usb_string_descriptor_t *, int, char *); 196 Static void uhci_add_loop(uhci_softc_t *sc); 197 Static void uhci_rem_loop(uhci_softc_t *sc); 198 199 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 200 Static void uhci_device_isoc_enter(usbd_xfer_handle); 201 202 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 203 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 204 205 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 206 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 207 208 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 209 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 210 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 211 Static void uhci_device_ctrl_close(usbd_pipe_handle); 212 Static void uhci_device_ctrl_done(usbd_xfer_handle); 213 214 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 215 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 216 Static void uhci_device_intr_abort(usbd_xfer_handle); 217 Static void uhci_device_intr_close(usbd_pipe_handle); 218 Static void uhci_device_intr_done(usbd_xfer_handle); 219 220 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 221 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 222 Static void uhci_device_bulk_abort(usbd_xfer_handle); 223 Static void uhci_device_bulk_close(usbd_pipe_handle); 224 Static void uhci_device_bulk_done(usbd_xfer_handle); 225 226 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 227 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 228 Static void uhci_device_isoc_abort(usbd_xfer_handle); 229 Static void uhci_device_isoc_close(usbd_pipe_handle); 230 Static void uhci_device_isoc_done(usbd_xfer_handle); 231 232 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 233 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 234 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 235 Static void uhci_root_ctrl_close(usbd_pipe_handle); 236 Static void uhci_root_ctrl_done(usbd_xfer_handle); 237 238 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 239 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 240 Static void uhci_root_intr_abort(usbd_xfer_handle); 241 Static void uhci_root_intr_close(usbd_pipe_handle); 242 Static void uhci_root_intr_done(usbd_xfer_handle); 243 244 Static usbd_status uhci_open(usbd_pipe_handle); 245 Static void uhci_poll(struct usbd_bus *); 246 Static void uhci_softintr(void *); 247 248 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 249 250 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 251 Static void uhci_remove_intr(uhci_softc_t*, uhci_soft_qh_t*); 252 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 253 struct uhci_pipe *pipe, int ival); 254 255 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 256 Static void uhci_noop(usbd_pipe_handle pipe); 257 258 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 259 uhci_soft_qh_t *); 260 261 #ifdef UHCI_DEBUG 262 Static void uhci_dump_all(uhci_softc_t *); 263 Static void uhci_dumpregs(uhci_softc_t *); 264 Static void uhci_dump_qhs(uhci_soft_qh_t *); 265 Static void uhci_dump_qh(uhci_soft_qh_t *); 266 Static void uhci_dump_tds(uhci_soft_td_t *); 267 Static void uhci_dump_td(uhci_soft_td_t *); 268 Static void uhci_dump_ii(uhci_intr_info_t *ii); 269 void uhci_dump(void); 270 #endif 271 272 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 273 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 274 #define UWRITE1(sc, r, x) \ 275 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 276 #define UWRITE2(sc, r, x) \ 277 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 278 #define UWRITE4(sc, r, x) \ 279 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 280 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 281 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 282 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 283 284 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 285 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 286 287 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 288 289 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 290 291 #define UHCI_INTR_ENDPT 1 292 293 struct usbd_bus_methods uhci_bus_methods = { 294 uhci_open, 295 uhci_softintr, 296 uhci_poll, 297 uhci_allocm, 298 uhci_freem, 299 uhci_allocx, 300 uhci_freex, 301 }; 302 303 struct usbd_pipe_methods uhci_root_ctrl_methods = { 304 uhci_root_ctrl_transfer, 305 uhci_root_ctrl_start, 306 uhci_root_ctrl_abort, 307 uhci_root_ctrl_close, 308 uhci_noop, 309 uhci_root_ctrl_done, 310 }; 311 312 struct usbd_pipe_methods uhci_root_intr_methods = { 313 uhci_root_intr_transfer, 314 uhci_root_intr_start, 315 uhci_root_intr_abort, 316 uhci_root_intr_close, 317 uhci_noop, 318 uhci_root_intr_done, 319 }; 320 321 struct usbd_pipe_methods uhci_device_ctrl_methods = { 322 uhci_device_ctrl_transfer, 323 uhci_device_ctrl_start, 324 uhci_device_ctrl_abort, 325 uhci_device_ctrl_close, 326 uhci_noop, 327 uhci_device_ctrl_done, 328 }; 329 330 struct usbd_pipe_methods uhci_device_intr_methods = { 331 uhci_device_intr_transfer, 332 uhci_device_intr_start, 333 uhci_device_intr_abort, 334 uhci_device_intr_close, 335 uhci_device_clear_toggle, 336 uhci_device_intr_done, 337 }; 338 339 struct usbd_pipe_methods uhci_device_bulk_methods = { 340 uhci_device_bulk_transfer, 341 uhci_device_bulk_start, 342 uhci_device_bulk_abort, 343 uhci_device_bulk_close, 344 uhci_device_clear_toggle, 345 uhci_device_bulk_done, 346 }; 347 348 struct usbd_pipe_methods uhci_device_isoc_methods = { 349 uhci_device_isoc_transfer, 350 uhci_device_isoc_start, 351 uhci_device_isoc_abort, 352 uhci_device_isoc_close, 353 uhci_noop, 354 uhci_device_isoc_done, 355 }; 356 357 #define uhci_add_intr_info(sc, ii) \ 358 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 359 #define uhci_del_intr_info(ii) \ 360 LIST_REMOVE((ii), list) 361 362 Static __inline__ uhci_soft_qh_t * 363 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 364 { 365 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 366 367 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 368 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 369 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 370 printf("uhci_find_prev_qh: QH not found\n"); 371 return (NULL); 372 } 373 #endif 374 } 375 return (pqh); 376 } 377 378 void 379 uhci_globalreset(uhci_softc_t *sc) 380 { 381 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 382 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 383 UHCICMD(sc, 0); /* do nothing */ 384 } 385 386 usbd_status 387 uhci_init(uhci_softc_t *sc) 388 { 389 usbd_status err; 390 int i, j; 391 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 392 uhci_soft_td_t *std; 393 394 DPRINTFN(1,("uhci_init: start\n")); 395 396 #ifdef UHCI_DEBUG 397 thesc = sc; 398 399 if (uhcidebug > 2) 400 uhci_dumpregs(sc); 401 #endif 402 403 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 404 uhci_globalreset(sc); /* reset the controller */ 405 uhci_reset(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 Static int uhci_intr1(uhci_softc_t *); 1160 1161 int 1162 uhci_intr(void *arg) 1163 { 1164 uhci_softc_t *sc = arg; 1165 1166 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1167 if (sc->sc_bus.use_polling) { 1168 #ifdef DIAGNOSTIC 1169 printf("uhci_intr: ignored interrupt while polling\n"); 1170 #endif 1171 return (0); 1172 } 1173 return (uhci_intr1(sc)); 1174 } 1175 1176 int 1177 uhci_intr1(uhci_softc_t *sc) 1178 { 1179 int status; 1180 int ack; 1181 1182 #ifdef UHCI_DEBUG 1183 if (uhcidebug > 15) { 1184 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1185 uhci_dumpregs(sc); 1186 } 1187 #endif 1188 1189 status = UREAD2(sc, UHCI_STS); 1190 if (status == 0) /* The interrupt was not for us. */ 1191 return (0); 1192 1193 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1194 if (sc->sc_suspend != PWR_RESUME) 1195 printf("uhci_intr: suspended sts=0x%x\n", status); 1196 #endif 1197 1198 if (sc->sc_suspend != PWR_RESUME) { 1199 printf("%s: interrupt while not operating ignored\n", 1200 USBDEVNAME(sc->sc_bus.bdev)); 1201 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1202 return (0); 1203 } 1204 1205 ack = 0; 1206 if (status & UHCI_STS_USBINT) 1207 ack |= UHCI_STS_USBINT; 1208 if (status & UHCI_STS_USBEI) 1209 ack |= UHCI_STS_USBEI; 1210 if (status & UHCI_STS_RD) { 1211 ack |= UHCI_STS_RD; 1212 #ifdef UHCI_DEBUG 1213 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1214 #endif 1215 } 1216 if (status & UHCI_STS_HSE) { 1217 ack |= UHCI_STS_HSE; 1218 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1219 } 1220 if (status & UHCI_STS_HCPE) { 1221 ack |= UHCI_STS_HCPE; 1222 printf("%s: host controller process error\n", 1223 USBDEVNAME(sc->sc_bus.bdev)); 1224 } 1225 if (status & UHCI_STS_HCH) { 1226 /* no acknowledge needed */ 1227 if (!sc->sc_dying) { 1228 printf("%s: host controller halted\n", 1229 USBDEVNAME(sc->sc_bus.bdev)); 1230 #ifdef UHCI_DEBUG 1231 uhci_dump_all(sc); 1232 #endif 1233 } 1234 sc->sc_dying = 1; 1235 } 1236 1237 if (!ack) 1238 return (0); /* nothing to acknowledge */ 1239 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1240 1241 sc->sc_bus.no_intrs++; 1242 usb_schedsoftintr(&sc->sc_bus); 1243 1244 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1245 1246 return (1); 1247 } 1248 1249 void 1250 uhci_softintr(void *v) 1251 { 1252 uhci_softc_t *sc = v; 1253 uhci_intr_info_t *ii; 1254 1255 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1256 sc->sc_bus.intr_context)); 1257 1258 sc->sc_bus.intr_context++; 1259 1260 /* 1261 * Interrupts on UHCI really suck. When the host controller 1262 * interrupts because a transfer is completed there is no 1263 * way of knowing which transfer it was. You can scan down 1264 * the TDs and QHs of the previous frame to limit the search, 1265 * but that assumes that the interrupt was not delayed by more 1266 * than 1 ms, which may not always be true (e.g. after debug 1267 * output on a slow console). 1268 * We scan all interrupt descriptors to see if any have 1269 * completed. 1270 */ 1271 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1272 uhci_check_intr(sc, ii); 1273 1274 sc->sc_bus.intr_context--; 1275 } 1276 1277 /* Check for an interrupt. */ 1278 void 1279 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1280 { 1281 uhci_soft_td_t *std, *lstd; 1282 u_int32_t status; 1283 1284 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1285 #ifdef DIAGNOSTIC 1286 if (ii == NULL) { 1287 printf("uhci_check_intr: no ii? %p\n", ii); 1288 return; 1289 } 1290 #endif 1291 if (ii->stdstart == NULL) 1292 return; 1293 lstd = ii->stdend; 1294 #ifdef DIAGNOSTIC 1295 if (lstd == NULL) { 1296 printf("uhci_check_intr: std==0\n"); 1297 return; 1298 } 1299 #endif 1300 /* 1301 * If the last TD is still active we need to check whether there 1302 * is a an error somewhere in the middle, or whether there was a 1303 * short packet (SPD and not ACTIVE). 1304 */ 1305 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1306 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1307 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1308 status = le32toh(std->td.td_status); 1309 /* If there's an active TD the xfer isn't done. */ 1310 if (status & UHCI_TD_ACTIVE) 1311 break; 1312 /* Any kind of error makes the xfer done. */ 1313 if (status & UHCI_TD_STALLED) 1314 goto done; 1315 /* We want short packets, and it is short: it's done */ 1316 if ((status & UHCI_TD_SPD) && 1317 UHCI_TD_GET_ACTLEN(status) < 1318 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1319 goto done; 1320 } 1321 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1322 ii, ii->stdstart)); 1323 return; 1324 } 1325 done: 1326 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1327 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1328 uhci_idone(ii); 1329 } 1330 1331 /* Called at splusb() */ 1332 void 1333 uhci_idone(uhci_intr_info_t *ii) 1334 { 1335 usbd_xfer_handle xfer = ii->xfer; 1336 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1337 uhci_soft_td_t *std; 1338 u_int32_t status = 0, nstatus; 1339 int actlen; 1340 1341 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1342 #ifdef DIAGNOSTIC 1343 { 1344 int s = splhigh(); 1345 if (ii->isdone) { 1346 splx(s); 1347 #ifdef UHCI_DEBUG 1348 printf("uhci_idone: ii is done!\n "); 1349 uhci_dump_ii(ii); 1350 #else 1351 printf("uhci_idone: ii=%p is done!\n", ii); 1352 #endif 1353 return; 1354 } 1355 ii->isdone = 1; 1356 splx(s); 1357 } 1358 #endif 1359 1360 if (xfer->status == USBD_CANCELLED || 1361 xfer->status == USBD_TIMEOUT) { 1362 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1363 return; 1364 } 1365 1366 if (xfer->nframes != 0) { 1367 /* Isoc transfer, do things differently. */ 1368 uhci_soft_td_t **stds = upipe->u.iso.stds; 1369 int i, n, nframes, len; 1370 1371 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1372 1373 nframes = xfer->nframes; 1374 actlen = 0; 1375 n = UXFER(xfer)->curframe; 1376 for (i = 0; i < nframes; i++) { 1377 std = stds[n]; 1378 #ifdef UHCI_DEBUG 1379 if (uhcidebug > 5) { 1380 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1381 uhci_dump_td(std); 1382 } 1383 #endif 1384 if (++n >= UHCI_VFRAMELIST_COUNT) 1385 n = 0; 1386 status = le32toh(std->td.td_status); 1387 len = UHCI_TD_GET_ACTLEN(status); 1388 xfer->frlengths[i] = len; 1389 actlen += len; 1390 } 1391 upipe->u.iso.inuse -= nframes; 1392 xfer->actlen = actlen; 1393 xfer->status = USBD_NORMAL_COMPLETION; 1394 goto end; 1395 } 1396 1397 #ifdef UHCI_DEBUG 1398 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1399 ii, xfer, upipe)); 1400 if (uhcidebug > 10) 1401 uhci_dump_tds(ii->stdstart); 1402 #endif 1403 1404 /* The transfer is done, compute actual length and status. */ 1405 actlen = 0; 1406 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1407 nstatus = le32toh(std->td.td_status); 1408 if (nstatus & UHCI_TD_ACTIVE) 1409 break; 1410 1411 status = nstatus; 1412 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1413 UHCI_TD_PID_SETUP) 1414 actlen += UHCI_TD_GET_ACTLEN(status); 1415 } 1416 /* If there are left over TDs we need to update the toggle. */ 1417 if (std != NULL) 1418 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1419 1420 status &= UHCI_TD_ERROR; 1421 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1422 actlen, status)); 1423 xfer->actlen = actlen; 1424 if (status != 0) { 1425 #ifdef UHCI_DEBUG 1426 char sbuf[128]; 1427 1428 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1429 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1430 sbuf, sizeof(sbuf)); 1431 1432 DPRINTFN((status == UHCI_TD_STALLED)*10, 1433 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1434 "status 0x%s\n", 1435 xfer->pipe->device->address, 1436 xfer->pipe->endpoint->edesc->bEndpointAddress, 1437 sbuf)); 1438 #endif 1439 1440 if (status == UHCI_TD_STALLED) 1441 xfer->status = USBD_STALLED; 1442 else 1443 xfer->status = USBD_IOERROR; /* more info XXX */ 1444 } else { 1445 xfer->status = USBD_NORMAL_COMPLETION; 1446 } 1447 1448 end: 1449 usb_transfer_complete(xfer); 1450 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1451 } 1452 1453 /* 1454 * Called when a request does not complete. 1455 */ 1456 void 1457 uhci_timeout(void *addr) 1458 { 1459 uhci_intr_info_t *ii = addr; 1460 1461 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1462 1463 #ifdef UHCI_DEBUG 1464 if (uhcidebug > 10) 1465 uhci_dump_tds(ii->stdstart); 1466 #endif 1467 1468 ii->xfer->device->bus->intr_context++; 1469 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1470 ii->xfer->device->bus->intr_context--; 1471 } 1472 1473 /* 1474 * Wait here until controller claims to have an interrupt. 1475 * Then call uhci_intr and return. Use timeout to avoid waiting 1476 * too long. 1477 * Only used during boot when interrupts are not enabled yet. 1478 */ 1479 void 1480 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1481 { 1482 int timo = xfer->timeout; 1483 uhci_intr_info_t *ii; 1484 1485 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1486 1487 xfer->status = USBD_IN_PROGRESS; 1488 for (; timo >= 0; timo--) { 1489 usb_delay_ms(&sc->sc_bus, 1); 1490 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1491 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1492 uhci_intr1(sc); 1493 if (xfer->status != USBD_IN_PROGRESS) 1494 return; 1495 } 1496 } 1497 1498 /* Timeout */ 1499 DPRINTF(("uhci_waitintr: timeout\n")); 1500 for (ii = LIST_FIRST(&sc->sc_intrhead); 1501 ii != NULL && ii->xfer != xfer; 1502 ii = LIST_NEXT(ii, list)) 1503 ; 1504 #ifdef DIAGNOSTIC 1505 if (ii == NULL) 1506 panic("uhci_waitintr: lost intr_info\n"); 1507 #endif 1508 uhci_idone(ii); 1509 } 1510 1511 void 1512 uhci_poll(struct usbd_bus *bus) 1513 { 1514 uhci_softc_t *sc = (uhci_softc_t *)bus; 1515 1516 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1517 uhci_intr1(sc); 1518 } 1519 1520 void 1521 uhci_reset(uhci_softc_t *sc) 1522 { 1523 int n; 1524 1525 UHCICMD(sc, UHCI_CMD_HCRESET); 1526 /* The reset bit goes low when the controller is done. */ 1527 for (n = 0; n < UHCI_RESET_TIMEOUT && 1528 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1529 usb_delay_ms(&sc->sc_bus, 1); 1530 if (n >= UHCI_RESET_TIMEOUT) 1531 printf("%s: controller did not reset\n", 1532 USBDEVNAME(sc->sc_bus.bdev)); 1533 } 1534 1535 usbd_status 1536 uhci_run(uhci_softc_t *sc, int run) 1537 { 1538 int s, n, running; 1539 u_int16_t cmd; 1540 1541 run = run != 0; 1542 s = splhardusb(); 1543 DPRINTF(("uhci_run: setting run=%d\n", run)); 1544 cmd = UREAD2(sc, UHCI_CMD); 1545 if (run) 1546 cmd |= UHCI_CMD_RS; 1547 else 1548 cmd &= ~UHCI_CMD_RS; 1549 UHCICMD(sc, cmd); 1550 for(n = 0; n < 10; n++) { 1551 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1552 /* return when we've entered the state we want */ 1553 if (run == running) { 1554 splx(s); 1555 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1556 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1557 return (USBD_NORMAL_COMPLETION); 1558 } 1559 usb_delay_ms(&sc->sc_bus, 1); 1560 } 1561 splx(s); 1562 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1563 run ? "start" : "stop"); 1564 return (USBD_IOERROR); 1565 } 1566 1567 /* 1568 * Memory management routines. 1569 * uhci_alloc_std allocates TDs 1570 * uhci_alloc_sqh allocates QHs 1571 * These two routines do their own free list management, 1572 * partly for speed, partly because allocating DMAable memory 1573 * has page size granularaity so much memory would be wasted if 1574 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1575 */ 1576 1577 uhci_soft_td_t * 1578 uhci_alloc_std(uhci_softc_t *sc) 1579 { 1580 uhci_soft_td_t *std; 1581 usbd_status err; 1582 int i, offs; 1583 usb_dma_t dma; 1584 1585 if (sc->sc_freetds == NULL) { 1586 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1587 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1588 UHCI_TD_ALIGN, &dma); 1589 if (err) 1590 return (0); 1591 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1592 offs = i * UHCI_STD_SIZE; 1593 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1594 std->physaddr = DMAADDR(&dma) + offs; 1595 std->link.std = sc->sc_freetds; 1596 sc->sc_freetds = std; 1597 } 1598 } 1599 std = sc->sc_freetds; 1600 sc->sc_freetds = std->link.std; 1601 memset(&std->td, 0, sizeof(uhci_td_t)); 1602 return std; 1603 } 1604 1605 void 1606 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1607 { 1608 #ifdef DIAGNOSTIC 1609 #define TD_IS_FREE 0x12345678 1610 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1611 printf("uhci_free_std: freeing free TD %p\n", std); 1612 return; 1613 } 1614 std->td.td_token = htole32(TD_IS_FREE); 1615 #endif 1616 std->link.std = sc->sc_freetds; 1617 sc->sc_freetds = std; 1618 } 1619 1620 uhci_soft_qh_t * 1621 uhci_alloc_sqh(uhci_softc_t *sc) 1622 { 1623 uhci_soft_qh_t *sqh; 1624 usbd_status err; 1625 int i, offs; 1626 usb_dma_t dma; 1627 1628 if (sc->sc_freeqhs == NULL) { 1629 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1630 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1631 UHCI_QH_ALIGN, &dma); 1632 if (err) 1633 return (0); 1634 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1635 offs = i * UHCI_SQH_SIZE; 1636 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1637 sqh->physaddr = DMAADDR(&dma) + offs; 1638 sqh->hlink = sc->sc_freeqhs; 1639 sc->sc_freeqhs = sqh; 1640 } 1641 } 1642 sqh = sc->sc_freeqhs; 1643 sc->sc_freeqhs = sqh->hlink; 1644 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1645 return (sqh); 1646 } 1647 1648 void 1649 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1650 { 1651 sqh->hlink = sc->sc_freeqhs; 1652 sc->sc_freeqhs = sqh; 1653 } 1654 1655 void 1656 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1657 uhci_soft_td_t *stdend) 1658 { 1659 uhci_soft_td_t *p; 1660 1661 for (; std != stdend; std = p) { 1662 p = std->link.std; 1663 uhci_free_std(sc, std); 1664 } 1665 } 1666 1667 usbd_status 1668 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1669 int rd, u_int16_t flags, usb_dma_t *dma, 1670 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1671 { 1672 uhci_soft_td_t *p, *lastp; 1673 uhci_physaddr_t lastlink; 1674 int i, ntd, l, tog, maxp; 1675 u_int32_t status; 1676 int addr = upipe->pipe.device->address; 1677 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1678 1679 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1680 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1681 upipe->pipe.device->lowspeed, flags)); 1682 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1683 if (maxp == 0) { 1684 printf("uhci_alloc_std_chain: maxp=0\n"); 1685 return (USBD_INVAL); 1686 } 1687 ntd = (len + maxp - 1) / maxp; 1688 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1689 ntd++; 1690 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1691 if (ntd == 0) { 1692 *sp = *ep = 0; 1693 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1694 return (USBD_NORMAL_COMPLETION); 1695 } 1696 tog = upipe->nexttoggle; 1697 if (ntd % 2 == 0) 1698 tog ^= 1; 1699 upipe->nexttoggle = tog ^ 1; 1700 lastp = NULL; 1701 lastlink = UHCI_PTR_T; 1702 ntd--; 1703 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1704 if (upipe->pipe.device->lowspeed) 1705 status |= UHCI_TD_LS; 1706 if (flags & USBD_SHORT_XFER_OK) 1707 status |= UHCI_TD_SPD; 1708 for (i = ntd; i >= 0; i--) { 1709 p = uhci_alloc_std(sc); 1710 if (p == NULL) { 1711 uhci_free_std_chain(sc, lastp, 0); 1712 return (USBD_NOMEM); 1713 } 1714 p->link.std = lastp; 1715 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1716 lastp = p; 1717 lastlink = p->physaddr; 1718 p->td.td_status = htole32(status); 1719 if (i == ntd) { 1720 /* last TD */ 1721 l = len % maxp; 1722 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1723 l = maxp; 1724 *ep = p; 1725 } else 1726 l = maxp; 1727 p->td.td_token = 1728 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1729 UHCI_TD_OUT(l, endpt, addr, tog)); 1730 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1731 tog ^= 1; 1732 } 1733 *sp = lastp; 1734 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1735 upipe->nexttoggle)); 1736 return (USBD_NORMAL_COMPLETION); 1737 } 1738 1739 void 1740 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1741 { 1742 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1743 upipe->nexttoggle = 0; 1744 } 1745 1746 void 1747 uhci_noop(usbd_pipe_handle pipe) 1748 { 1749 } 1750 1751 usbd_status 1752 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1753 { 1754 usbd_status err; 1755 1756 /* Insert last in queue. */ 1757 err = usb_insert_transfer(xfer); 1758 if (err) 1759 return (err); 1760 1761 /* 1762 * Pipe isn't running (otherwise err would be USBD_INPROG), 1763 * so start it first. 1764 */ 1765 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1766 } 1767 1768 usbd_status 1769 uhci_device_bulk_start(usbd_xfer_handle xfer) 1770 { 1771 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1772 usbd_device_handle dev = upipe->pipe.device; 1773 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1774 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1775 uhci_soft_td_t *data, *dataend; 1776 uhci_soft_qh_t *sqh; 1777 usbd_status err; 1778 int len, isread, endpt; 1779 int s; 1780 1781 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1782 xfer, xfer->length, xfer->flags)); 1783 1784 if (sc->sc_dying) 1785 return (USBD_IOERROR); 1786 1787 #ifdef DIAGNOSTIC 1788 if (xfer->rqflags & URQ_REQUEST) 1789 panic("uhci_device_bulk_transfer: a request\n"); 1790 #endif 1791 1792 len = xfer->length; 1793 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1794 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1795 sqh = upipe->u.bulk.sqh; 1796 1797 upipe->u.bulk.isread = isread; 1798 upipe->u.bulk.length = len; 1799 1800 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1801 &xfer->dmabuf, &data, &dataend); 1802 if (err) 1803 return (err); 1804 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1805 1806 #ifdef UHCI_DEBUG 1807 if (uhcidebug > 8) { 1808 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1809 uhci_dump_tds(data); 1810 } 1811 #endif 1812 1813 /* Set up interrupt info. */ 1814 ii->xfer = xfer; 1815 ii->stdstart = data; 1816 ii->stdend = dataend; 1817 #ifdef DIAGNOSTIC 1818 if (!ii->isdone) { 1819 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1820 } 1821 ii->isdone = 0; 1822 #endif 1823 1824 sqh->elink = data; 1825 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1826 1827 s = splusb(); 1828 uhci_add_bulk(sc, sqh); 1829 uhci_add_intr_info(sc, ii); 1830 1831 if (xfer->timeout && !sc->sc_bus.use_polling) { 1832 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1833 uhci_timeout, ii); 1834 } 1835 xfer->status = USBD_IN_PROGRESS; 1836 splx(s); 1837 1838 #ifdef UHCI_DEBUG 1839 if (uhcidebug > 10) { 1840 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1841 uhci_dump_tds(data); 1842 } 1843 #endif 1844 1845 if (sc->sc_bus.use_polling) 1846 uhci_waitintr(sc, xfer); 1847 1848 return (USBD_IN_PROGRESS); 1849 } 1850 1851 /* Abort a device bulk request. */ 1852 void 1853 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1854 { 1855 DPRINTF(("uhci_device_bulk_abort:\n")); 1856 uhci_abort_xfer(xfer, USBD_CANCELLED); 1857 } 1858 1859 /* 1860 * XXX This way of aborting is neither safe, nor good. 1861 * But it will have to do until I figure out what to do. 1862 * I apologize for the delay(). 1863 */ 1864 void 1865 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1866 { 1867 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1868 uhci_soft_td_t *std; 1869 int s; 1870 1871 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1872 1873 s = splusb(); 1874 1875 /* Transfer is already done. */ 1876 if (xfer->status != USBD_NOT_STARTED && 1877 xfer->status != USBD_IN_PROGRESS) { 1878 splx(s); 1879 return; 1880 } 1881 1882 /* Make interrupt routine ignore it, */ 1883 xfer->status = status; 1884 1885 /* don't timeout, */ 1886 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1887 1888 /* make hardware ignore it, */ 1889 for (std = ii->stdstart; std != NULL; std = std->link.std) 1890 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1891 1892 xfer->hcpriv = ii; 1893 1894 splx(s); 1895 1896 delay(1000); 1897 1898 s = splusb(); 1899 #ifdef DIAGNOSTIC 1900 ii->isdone = 1; 1901 #endif 1902 usb_transfer_complete(xfer); 1903 splx(s); 1904 } 1905 1906 /* Close a device bulk pipe. */ 1907 void 1908 uhci_device_bulk_close(usbd_pipe_handle pipe) 1909 { 1910 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1911 usbd_device_handle dev = upipe->pipe.device; 1912 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1913 1914 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1915 } 1916 1917 usbd_status 1918 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1919 { 1920 usbd_status err; 1921 1922 /* Insert last in queue. */ 1923 err = usb_insert_transfer(xfer); 1924 if (err) 1925 return (err); 1926 1927 /* 1928 * Pipe isn't running (otherwise err would be USBD_INPROG), 1929 * so start it first. 1930 */ 1931 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1932 } 1933 1934 usbd_status 1935 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1936 { 1937 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1938 usbd_status err; 1939 1940 if (sc->sc_dying) 1941 return (USBD_IOERROR); 1942 1943 #ifdef DIAGNOSTIC 1944 if (!(xfer->rqflags & URQ_REQUEST)) 1945 panic("uhci_device_ctrl_transfer: not a request\n"); 1946 #endif 1947 1948 err = uhci_device_request(xfer); 1949 if (err) 1950 return (err); 1951 1952 if (sc->sc_bus.use_polling) 1953 uhci_waitintr(sc, xfer); 1954 return (USBD_IN_PROGRESS); 1955 } 1956 1957 usbd_status 1958 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1959 { 1960 usbd_status err; 1961 1962 /* Insert last in queue. */ 1963 err = usb_insert_transfer(xfer); 1964 if (err) 1965 return (err); 1966 1967 /* 1968 * Pipe isn't running (otherwise err would be USBD_INPROG), 1969 * so start it first. 1970 */ 1971 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1972 } 1973 1974 usbd_status 1975 uhci_device_intr_start(usbd_xfer_handle xfer) 1976 { 1977 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1978 usbd_device_handle dev = upipe->pipe.device; 1979 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1980 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1981 uhci_soft_td_t *data, *dataend; 1982 uhci_soft_qh_t *sqh; 1983 usbd_status err; 1984 int i, s; 1985 1986 if (sc->sc_dying) 1987 return (USBD_IOERROR); 1988 1989 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1990 xfer, xfer->length, xfer->flags)); 1991 1992 #ifdef DIAGNOSTIC 1993 if (xfer->rqflags & URQ_REQUEST) 1994 panic("uhci_device_intr_transfer: a request\n"); 1995 #endif 1996 1997 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1998 &xfer->dmabuf, &data, &dataend); 1999 if (err) 2000 return (err); 2001 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2002 2003 #ifdef UHCI_DEBUG 2004 if (uhcidebug > 10) { 2005 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2006 uhci_dump_tds(data); 2007 uhci_dump_qh(upipe->u.intr.qhs[0]); 2008 } 2009 #endif 2010 2011 s = splusb(); 2012 /* Set up interrupt info. */ 2013 ii->xfer = xfer; 2014 ii->stdstart = data; 2015 ii->stdend = dataend; 2016 #ifdef DIAGNOSTIC 2017 if (!ii->isdone) { 2018 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2019 } 2020 ii->isdone = 0; 2021 #endif 2022 2023 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2024 upipe->u.intr.qhs[0])); 2025 for (i = 0; i < upipe->u.intr.npoll; i++) { 2026 sqh = upipe->u.intr.qhs[i]; 2027 sqh->elink = data; 2028 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2029 } 2030 uhci_add_intr_info(sc, ii); 2031 xfer->status = USBD_IN_PROGRESS; 2032 splx(s); 2033 2034 #ifdef UHCI_DEBUG 2035 if (uhcidebug > 10) { 2036 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2037 uhci_dump_tds(data); 2038 uhci_dump_qh(upipe->u.intr.qhs[0]); 2039 } 2040 #endif 2041 2042 return (USBD_IN_PROGRESS); 2043 } 2044 2045 /* Abort a device control request. */ 2046 void 2047 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2048 { 2049 DPRINTF(("uhci_device_ctrl_abort:\n")); 2050 uhci_abort_xfer(xfer, USBD_CANCELLED); 2051 } 2052 2053 /* Close a device control pipe. */ 2054 void 2055 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2056 { 2057 } 2058 2059 /* Abort a device interrupt request. */ 2060 void 2061 uhci_device_intr_abort(usbd_xfer_handle xfer) 2062 { 2063 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2064 if (xfer->pipe->intrxfer == xfer) { 2065 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2066 xfer->pipe->intrxfer = 0; 2067 } 2068 uhci_abort_xfer(xfer, USBD_CANCELLED); 2069 } 2070 2071 /* Close a device interrupt pipe. */ 2072 void 2073 uhci_device_intr_close(usbd_pipe_handle pipe) 2074 { 2075 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2076 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2077 int i, npoll; 2078 int s; 2079 2080 /* Unlink descriptors from controller data structures. */ 2081 npoll = upipe->u.intr.npoll; 2082 s = splusb(); 2083 for (i = 0; i < npoll; i++) 2084 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2085 splx(s); 2086 2087 /* 2088 * We now have to wait for any activity on the physical 2089 * descriptors to stop. 2090 */ 2091 usb_delay_ms(&sc->sc_bus, 2); 2092 2093 for(i = 0; i < npoll; i++) 2094 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2095 free(upipe->u.intr.qhs, M_USBHC); 2096 2097 /* XXX free other resources */ 2098 } 2099 2100 usbd_status 2101 uhci_device_request(usbd_xfer_handle xfer) 2102 { 2103 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2104 usb_device_request_t *req = &xfer->request; 2105 usbd_device_handle dev = upipe->pipe.device; 2106 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2107 int addr = dev->address; 2108 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2109 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2110 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2111 uhci_soft_qh_t *sqh; 2112 int len; 2113 u_int32_t ls; 2114 usbd_status err; 2115 int isread; 2116 int s; 2117 2118 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2119 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2120 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2121 UGETW(req->wIndex), UGETW(req->wLength), 2122 addr, endpt)); 2123 2124 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2125 isread = req->bmRequestType & UT_READ; 2126 len = UGETW(req->wLength); 2127 2128 setup = upipe->u.ctl.setup; 2129 stat = upipe->u.ctl.stat; 2130 sqh = upipe->u.ctl.sqh; 2131 2132 /* Set up data transaction */ 2133 if (len != 0) { 2134 upipe->nexttoggle = 1; 2135 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2136 &xfer->dmabuf, &data, &dataend); 2137 if (err) 2138 return (err); 2139 next = data; 2140 dataend->link.std = stat; 2141 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2142 } else { 2143 next = stat; 2144 } 2145 upipe->u.ctl.length = len; 2146 2147 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2148 2149 setup->link.std = next; 2150 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2151 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2152 UHCI_TD_ACTIVE); 2153 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2154 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2155 2156 stat->link.std = NULL; 2157 stat->td.td_link = htole32(UHCI_PTR_T); 2158 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2159 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2160 stat->td.td_token = 2161 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2162 UHCI_TD_IN (0, endpt, addr, 1)); 2163 stat->td.td_buffer = htole32(0); 2164 2165 #ifdef UHCI_DEBUG 2166 if (uhcidebug > 10) { 2167 DPRINTF(("uhci_device_request: before transfer\n")); 2168 uhci_dump_tds(setup); 2169 } 2170 #endif 2171 2172 /* Set up interrupt info. */ 2173 ii->xfer = xfer; 2174 ii->stdstart = setup; 2175 ii->stdend = stat; 2176 #ifdef DIAGNOSTIC 2177 if (!ii->isdone) { 2178 printf("uhci_device_request: not done, ii=%p\n", ii); 2179 } 2180 ii->isdone = 0; 2181 #endif 2182 2183 sqh->elink = setup; 2184 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2185 2186 s = splusb(); 2187 if (dev->lowspeed) 2188 uhci_add_ls_ctrl(sc, sqh); 2189 else 2190 uhci_add_hs_ctrl(sc, sqh); 2191 uhci_add_intr_info(sc, ii); 2192 #ifdef UHCI_DEBUG 2193 if (uhcidebug > 12) { 2194 uhci_soft_td_t *std; 2195 uhci_soft_qh_t *xqh; 2196 uhci_soft_qh_t *sxqh; 2197 int maxqh = 0; 2198 uhci_physaddr_t link; 2199 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2200 for (std = sc->sc_vframes[0].htd, link = 0; 2201 (link & UHCI_PTR_QH) == 0; 2202 std = std->link.std) { 2203 link = le32toh(std->td.td_link); 2204 uhci_dump_td(std); 2205 } 2206 sxqh = (uhci_soft_qh_t *)std; 2207 uhci_dump_qh(sxqh); 2208 for (xqh = sxqh; 2209 xqh != NULL; 2210 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2211 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2212 uhci_dump_qh(xqh); 2213 } 2214 DPRINTF(("Enqueued QH:\n")); 2215 uhci_dump_qh(sqh); 2216 uhci_dump_tds(sqh->elink); 2217 } 2218 #endif 2219 if (xfer->timeout && !sc->sc_bus.use_polling) { 2220 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2221 uhci_timeout, ii); 2222 } 2223 xfer->status = USBD_IN_PROGRESS; 2224 splx(s); 2225 2226 return (USBD_NORMAL_COMPLETION); 2227 } 2228 2229 usbd_status 2230 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2231 { 2232 usbd_status err; 2233 2234 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2235 2236 /* Put it on our queue, */ 2237 err = usb_insert_transfer(xfer); 2238 2239 /* bail out on error, */ 2240 if (err && err != USBD_IN_PROGRESS) 2241 return (err); 2242 2243 /* XXX should check inuse here */ 2244 2245 /* insert into schedule, */ 2246 uhci_device_isoc_enter(xfer); 2247 2248 /* and start if the pipe wasn't running */ 2249 if (!err) 2250 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2251 2252 return (err); 2253 } 2254 2255 void 2256 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2257 { 2258 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2259 usbd_device_handle dev = upipe->pipe.device; 2260 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2261 struct iso *iso = &upipe->u.iso; 2262 uhci_soft_td_t *std; 2263 u_int32_t buf, len, status; 2264 int s, i, next, nframes; 2265 2266 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2267 "nframes=%d\n", 2268 iso->inuse, iso->next, xfer, xfer->nframes)); 2269 2270 if (sc->sc_dying) 2271 return; 2272 2273 if (xfer->status == USBD_IN_PROGRESS) { 2274 /* This request has already been entered into the frame list */ 2275 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2276 /* XXX */ 2277 } 2278 2279 #ifdef DIAGNOSTIC 2280 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2281 printf("uhci_device_isoc_enter: overflow!\n"); 2282 #endif 2283 2284 next = iso->next; 2285 if (next == -1) { 2286 /* Not in use yet, schedule it a few frames ahead. */ 2287 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2288 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2289 } 2290 2291 xfer->status = USBD_IN_PROGRESS; 2292 UXFER(xfer)->curframe = next; 2293 2294 buf = DMAADDR(&xfer->dmabuf); 2295 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2296 UHCI_TD_ACTIVE | 2297 UHCI_TD_IOS); 2298 nframes = xfer->nframes; 2299 s = splusb(); 2300 for (i = 0; i < nframes; i++) { 2301 std = iso->stds[next]; 2302 if (++next >= UHCI_VFRAMELIST_COUNT) 2303 next = 0; 2304 len = xfer->frlengths[i]; 2305 std->td.td_buffer = htole32(buf); 2306 if (i == nframes - 1) 2307 status |= UHCI_TD_IOC; 2308 std->td.td_status = htole32(status); 2309 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2310 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2311 #ifdef UHCI_DEBUG 2312 if (uhcidebug > 5) { 2313 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2314 uhci_dump_td(std); 2315 } 2316 #endif 2317 buf += len; 2318 } 2319 iso->next = next; 2320 iso->inuse += xfer->nframes; 2321 2322 splx(s); 2323 } 2324 2325 usbd_status 2326 uhci_device_isoc_start(usbd_xfer_handle xfer) 2327 { 2328 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2329 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2330 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2331 uhci_soft_td_t *end; 2332 int s, i; 2333 2334 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2335 2336 if (sc->sc_dying) 2337 return (USBD_IOERROR); 2338 2339 #ifdef DIAGNOSTIC 2340 if (xfer->status != USBD_IN_PROGRESS) 2341 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2342 #endif 2343 2344 /* Find the last TD */ 2345 i = UXFER(xfer)->curframe + xfer->nframes; 2346 if (i >= UHCI_VFRAMELIST_COUNT) 2347 i -= UHCI_VFRAMELIST_COUNT; 2348 end = upipe->u.iso.stds[i]; 2349 2350 #ifdef DIAGNOSTIC 2351 if (end == NULL) { 2352 printf("uhci_device_isoc_start: end == NULL\n"); 2353 return (USBD_INVAL); 2354 } 2355 #endif 2356 2357 s = splusb(); 2358 2359 /* Set up interrupt info. */ 2360 ii->xfer = xfer; 2361 ii->stdstart = end; 2362 ii->stdend = end; 2363 #ifdef DIAGNOSTIC 2364 if (!ii->isdone) 2365 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2366 ii->isdone = 0; 2367 #endif 2368 uhci_add_intr_info(sc, ii); 2369 2370 splx(s); 2371 2372 return (USBD_IN_PROGRESS); 2373 } 2374 2375 void 2376 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2377 { 2378 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2379 uhci_soft_td_t **stds = upipe->u.iso.stds; 2380 uhci_soft_td_t *std; 2381 int i, n, s, nframes, maxlen, len; 2382 2383 s = splusb(); 2384 2385 /* Transfer is already done. */ 2386 if (xfer->status != USBD_NOT_STARTED && 2387 xfer->status != USBD_IN_PROGRESS) { 2388 splx(s); 2389 return; 2390 } 2391 2392 /* Give xfer the requested abort code. */ 2393 xfer->status = USBD_CANCELLED; 2394 2395 /* make hardware ignore it, */ 2396 nframes = xfer->nframes; 2397 n = UXFER(xfer)->curframe; 2398 maxlen = 0; 2399 for (i = 0; i < nframes; i++) { 2400 std = stds[n]; 2401 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2402 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2403 if (len > maxlen) 2404 maxlen = len; 2405 if (++n >= UHCI_VFRAMELIST_COUNT) 2406 n = 0; 2407 } 2408 2409 /* and wait until we are sure the hardware has finished. */ 2410 delay(maxlen); 2411 2412 #ifdef DIAGNOSTIC 2413 UXFER(xfer)->iinfo.isdone = 1; 2414 #endif 2415 /* Run callback and remove from interrupt list. */ 2416 usb_transfer_complete(xfer); 2417 2418 splx(s); 2419 } 2420 2421 void 2422 uhci_device_isoc_close(usbd_pipe_handle pipe) 2423 { 2424 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2425 usbd_device_handle dev = upipe->pipe.device; 2426 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2427 uhci_soft_td_t *std, *vstd; 2428 struct iso *iso; 2429 int i, s; 2430 2431 /* 2432 * Make sure all TDs are marked as inactive. 2433 * Wait for completion. 2434 * Unschedule. 2435 * Deallocate. 2436 */ 2437 iso = &upipe->u.iso; 2438 2439 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2440 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2441 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2442 2443 s = splusb(); 2444 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2445 std = iso->stds[i]; 2446 for (vstd = sc->sc_vframes[i].htd; 2447 vstd != NULL && vstd->link.std != std; 2448 vstd = vstd->link.std) 2449 ; 2450 if (vstd == NULL) { 2451 /*panic*/ 2452 printf("uhci_device_isoc_close: %p not found\n", std); 2453 splx(s); 2454 return; 2455 } 2456 vstd->link = std->link; 2457 vstd->td.td_link = std->td.td_link; 2458 uhci_free_std(sc, std); 2459 } 2460 splx(s); 2461 2462 free(iso->stds, M_USBHC); 2463 } 2464 2465 usbd_status 2466 uhci_setup_isoc(usbd_pipe_handle pipe) 2467 { 2468 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2469 usbd_device_handle dev = upipe->pipe.device; 2470 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2471 int addr = upipe->pipe.device->address; 2472 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2473 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2474 uhci_soft_td_t *std, *vstd; 2475 u_int32_t token; 2476 struct iso *iso; 2477 int i, s; 2478 2479 iso = &upipe->u.iso; 2480 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2481 M_USBHC, M_WAITOK); 2482 2483 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2484 UHCI_TD_OUT(0, endpt, addr, 0); 2485 2486 /* Allocate the TDs and mark as inactive; */ 2487 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2488 std = uhci_alloc_std(sc); 2489 if (std == 0) 2490 goto bad; 2491 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2492 std->td.td_token = htole32(token); 2493 iso->stds[i] = std; 2494 } 2495 2496 /* Insert TDs into schedule. */ 2497 s = splusb(); 2498 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2499 std = iso->stds[i]; 2500 vstd = sc->sc_vframes[i].htd; 2501 std->link = vstd->link; 2502 std->td.td_link = vstd->td.td_link; 2503 vstd->link.std = std; 2504 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2505 } 2506 splx(s); 2507 2508 iso->next = -1; 2509 iso->inuse = 0; 2510 2511 return (USBD_NORMAL_COMPLETION); 2512 2513 bad: 2514 while (--i >= 0) 2515 uhci_free_std(sc, iso->stds[i]); 2516 free(iso->stds, M_USBHC); 2517 return (USBD_NOMEM); 2518 } 2519 2520 void 2521 uhci_device_isoc_done(usbd_xfer_handle xfer) 2522 { 2523 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2524 2525 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2526 2527 if (ii->xfer != xfer) 2528 /* Not on interrupt list, ignore it. */ 2529 return; 2530 2531 #ifdef DIAGNOSTIC 2532 if (xfer->busy_free != XFER_BUSY) { 2533 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2534 xfer, xfer->busy_free); 2535 return; 2536 } 2537 2538 if (ii->stdend == NULL) { 2539 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2540 #ifdef UHCI_DEBUG 2541 uhci_dump_ii(ii); 2542 #endif 2543 return; 2544 } 2545 #endif 2546 2547 /* Turn off the interrupt since it is active even if the TD is not. */ 2548 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2549 2550 uhci_del_intr_info(ii); /* remove from active list */ 2551 } 2552 2553 void 2554 uhci_device_intr_done(usbd_xfer_handle xfer) 2555 { 2556 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2557 uhci_softc_t *sc = ii->sc; 2558 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2559 uhci_soft_qh_t *sqh; 2560 int i, npoll; 2561 2562 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2563 2564 npoll = upipe->u.intr.npoll; 2565 for(i = 0; i < npoll; i++) { 2566 sqh = upipe->u.intr.qhs[i]; 2567 sqh->elink = NULL; 2568 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2569 } 2570 uhci_free_std_chain(sc, ii->stdstart, 0); 2571 2572 /* XXX Wasteful. */ 2573 if (xfer->pipe->repeat) { 2574 uhci_soft_td_t *data, *dataend; 2575 2576 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2577 2578 /* This alloc cannot fail since we freed the chain above. */ 2579 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2580 &xfer->dmabuf, &data, &dataend); 2581 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2582 2583 #ifdef UHCI_DEBUG 2584 if (uhcidebug > 10) { 2585 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2586 uhci_dump_tds(data); 2587 uhci_dump_qh(upipe->u.intr.qhs[0]); 2588 } 2589 #endif 2590 2591 ii->stdstart = data; 2592 ii->stdend = dataend; 2593 #ifdef DIAGNOSTIC 2594 if (!ii->isdone) { 2595 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2596 } 2597 ii->isdone = 0; 2598 #endif 2599 for (i = 0; i < npoll; i++) { 2600 sqh = upipe->u.intr.qhs[i]; 2601 sqh->elink = data; 2602 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2603 } 2604 xfer->status = USBD_IN_PROGRESS; 2605 /* The ii is already on the examined list, just leave it. */ 2606 } else { 2607 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2608 uhci_del_intr_info(ii); 2609 } 2610 } 2611 2612 /* Deallocate request data structures */ 2613 void 2614 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2615 { 2616 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2617 uhci_softc_t *sc = ii->sc; 2618 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2619 2620 #ifdef DIAGNOSTIC 2621 if (!(xfer->rqflags & URQ_REQUEST)) 2622 panic("uhci_ctrl_done: not a request\n"); 2623 #endif 2624 2625 uhci_del_intr_info(ii); /* remove from active list */ 2626 2627 if (upipe->pipe.device->lowspeed) 2628 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2629 else 2630 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2631 2632 if (upipe->u.ctl.length != 0) 2633 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2634 2635 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2636 } 2637 2638 /* Deallocate request data structures */ 2639 void 2640 uhci_device_bulk_done(usbd_xfer_handle xfer) 2641 { 2642 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2643 uhci_softc_t *sc = ii->sc; 2644 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2645 2646 uhci_del_intr_info(ii); /* remove from active list */ 2647 2648 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2649 2650 uhci_free_std_chain(sc, ii->stdstart, 0); 2651 2652 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2653 } 2654 2655 /* Add interrupt QH, called with vflock. */ 2656 void 2657 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2658 { 2659 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2660 uhci_soft_qh_t *eqh; 2661 2662 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2663 2664 eqh = vf->eqh; 2665 sqh->hlink = eqh->hlink; 2666 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2667 eqh->hlink = sqh; 2668 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2669 vf->eqh = sqh; 2670 vf->bandwidth++; 2671 } 2672 2673 /* Remove interrupt QH. */ 2674 void 2675 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2676 { 2677 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2678 uhci_soft_qh_t *pqh; 2679 2680 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2681 2682 /* See comment in uhci_remove_ctrl() */ 2683 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2684 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2685 delay(UHCI_QH_REMOVE_DELAY); 2686 } 2687 2688 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2689 pqh->hlink = sqh->hlink; 2690 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2691 delay(UHCI_QH_REMOVE_DELAY); 2692 if (vf->eqh == sqh) 2693 vf->eqh = pqh; 2694 vf->bandwidth--; 2695 } 2696 2697 usbd_status 2698 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2699 { 2700 uhci_soft_qh_t *sqh; 2701 int i, npoll, s; 2702 u_int bestbw, bw, bestoffs, offs; 2703 2704 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2705 if (ival == 0) { 2706 printf("uhci_setintr: 0 interval\n"); 2707 return (USBD_INVAL); 2708 } 2709 2710 if (ival > UHCI_VFRAMELIST_COUNT) 2711 ival = UHCI_VFRAMELIST_COUNT; 2712 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2713 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2714 2715 upipe->u.intr.npoll = npoll; 2716 upipe->u.intr.qhs = 2717 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2718 2719 /* 2720 * Figure out which offset in the schedule that has most 2721 * bandwidth left over. 2722 */ 2723 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2724 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2725 for (bw = i = 0; i < npoll; i++) 2726 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2727 if (bw < bestbw) { 2728 bestbw = bw; 2729 bestoffs = offs; 2730 } 2731 } 2732 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2733 2734 for(i = 0; i < npoll; i++) { 2735 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2736 sqh->elink = NULL; 2737 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2738 sqh->pos = MOD(i * ival + bestoffs); 2739 } 2740 #undef MOD 2741 2742 s = splusb(); 2743 /* Enter QHs into the controller data structures. */ 2744 for(i = 0; i < npoll; i++) 2745 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2746 splx(s); 2747 2748 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2749 return (USBD_NORMAL_COMPLETION); 2750 } 2751 2752 /* Open a new pipe. */ 2753 usbd_status 2754 uhci_open(usbd_pipe_handle pipe) 2755 { 2756 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2757 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2758 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2759 usbd_status err; 2760 int ival; 2761 2762 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2763 pipe, pipe->device->address, 2764 ed->bEndpointAddress, sc->sc_addr)); 2765 2766 upipe->aborting = 0; 2767 upipe->nexttoggle = 0; 2768 2769 if (pipe->device->address == sc->sc_addr) { 2770 switch (ed->bEndpointAddress) { 2771 case USB_CONTROL_ENDPOINT: 2772 pipe->methods = &uhci_root_ctrl_methods; 2773 break; 2774 case UE_DIR_IN | UHCI_INTR_ENDPT: 2775 pipe->methods = &uhci_root_intr_methods; 2776 break; 2777 default: 2778 return (USBD_INVAL); 2779 } 2780 } else { 2781 switch (ed->bmAttributes & UE_XFERTYPE) { 2782 case UE_CONTROL: 2783 pipe->methods = &uhci_device_ctrl_methods; 2784 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2785 if (upipe->u.ctl.sqh == NULL) 2786 goto bad; 2787 upipe->u.ctl.setup = uhci_alloc_std(sc); 2788 if (upipe->u.ctl.setup == NULL) { 2789 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2790 goto bad; 2791 } 2792 upipe->u.ctl.stat = uhci_alloc_std(sc); 2793 if (upipe->u.ctl.stat == NULL) { 2794 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2795 uhci_free_std(sc, upipe->u.ctl.setup); 2796 goto bad; 2797 } 2798 err = usb_allocmem(&sc->sc_bus, 2799 sizeof(usb_device_request_t), 2800 0, &upipe->u.ctl.reqdma); 2801 if (err) { 2802 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2803 uhci_free_std(sc, upipe->u.ctl.setup); 2804 uhci_free_std(sc, upipe->u.ctl.stat); 2805 goto bad; 2806 } 2807 break; 2808 case UE_INTERRUPT: 2809 pipe->methods = &uhci_device_intr_methods; 2810 ival = pipe->interval; 2811 if (ival == USBD_DEFAULT_INTERVAL) 2812 ival = ed->bInterval; 2813 return (uhci_device_setintr(sc, upipe, ival)); 2814 case UE_ISOCHRONOUS: 2815 pipe->methods = &uhci_device_isoc_methods; 2816 return (uhci_setup_isoc(pipe)); 2817 case UE_BULK: 2818 pipe->methods = &uhci_device_bulk_methods; 2819 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2820 if (upipe->u.bulk.sqh == NULL) 2821 goto bad; 2822 break; 2823 } 2824 } 2825 return (USBD_NORMAL_COMPLETION); 2826 2827 bad: 2828 return (USBD_NOMEM); 2829 } 2830 2831 /* 2832 * Data structures and routines to emulate the root hub. 2833 */ 2834 usb_device_descriptor_t uhci_devd = { 2835 USB_DEVICE_DESCRIPTOR_SIZE, 2836 UDESC_DEVICE, /* type */ 2837 {0x00, 0x01}, /* USB version */ 2838 UDCLASS_HUB, /* class */ 2839 UDSUBCLASS_HUB, /* subclass */ 2840 0, /* protocol */ 2841 64, /* max packet */ 2842 {0},{0},{0x00,0x01}, /* device id */ 2843 1,2,0, /* string indicies */ 2844 1 /* # of configurations */ 2845 }; 2846 2847 usb_config_descriptor_t uhci_confd = { 2848 USB_CONFIG_DESCRIPTOR_SIZE, 2849 UDESC_CONFIG, 2850 {USB_CONFIG_DESCRIPTOR_SIZE + 2851 USB_INTERFACE_DESCRIPTOR_SIZE + 2852 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2853 1, 2854 1, 2855 0, 2856 UC_SELF_POWERED, 2857 0 /* max power */ 2858 }; 2859 2860 usb_interface_descriptor_t uhci_ifcd = { 2861 USB_INTERFACE_DESCRIPTOR_SIZE, 2862 UDESC_INTERFACE, 2863 0, 2864 0, 2865 1, 2866 UICLASS_HUB, 2867 UISUBCLASS_HUB, 2868 0, 2869 0 2870 }; 2871 2872 usb_endpoint_descriptor_t uhci_endpd = { 2873 USB_ENDPOINT_DESCRIPTOR_SIZE, 2874 UDESC_ENDPOINT, 2875 UE_DIR_IN | UHCI_INTR_ENDPT, 2876 UE_INTERRUPT, 2877 {8}, 2878 255 2879 }; 2880 2881 usb_hub_descriptor_t uhci_hubd_piix = { 2882 USB_HUB_DESCRIPTOR_SIZE, 2883 UDESC_HUB, 2884 2, 2885 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2886 50, /* power on to power good */ 2887 0, 2888 { 0x00 }, /* both ports are removable */ 2889 }; 2890 2891 int 2892 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2893 { 2894 int i; 2895 2896 if (l == 0) 2897 return (0); 2898 p->bLength = 2 * strlen(s) + 2; 2899 if (l == 1) 2900 return (1); 2901 p->bDescriptorType = UDESC_STRING; 2902 l -= 2; 2903 for (i = 0; s[i] && l > 1; i++, l -= 2) 2904 USETW2(p->bString[i], 0, s[i]); 2905 return (2*i+2); 2906 } 2907 2908 /* 2909 * Simulate a hardware hub by handling all the necessary requests. 2910 */ 2911 usbd_status 2912 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2913 { 2914 usbd_status err; 2915 2916 /* Insert last in queue. */ 2917 err = usb_insert_transfer(xfer); 2918 if (err) 2919 return (err); 2920 2921 /* 2922 * Pipe isn't running (otherwise err would be USBD_INPROG), 2923 * so start it first. 2924 */ 2925 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2926 } 2927 2928 usbd_status 2929 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2930 { 2931 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2932 usb_device_request_t *req; 2933 void *buf = NULL; 2934 int port, x; 2935 int s, len, value, index, status, change, l, totlen = 0; 2936 usb_port_status_t ps; 2937 usbd_status err; 2938 2939 if (sc->sc_dying) 2940 return (USBD_IOERROR); 2941 2942 #ifdef DIAGNOSTIC 2943 if (!(xfer->rqflags & URQ_REQUEST)) 2944 panic("uhci_root_ctrl_transfer: not a request\n"); 2945 #endif 2946 req = &xfer->request; 2947 2948 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2949 req->bmRequestType, req->bRequest)); 2950 2951 len = UGETW(req->wLength); 2952 value = UGETW(req->wValue); 2953 index = UGETW(req->wIndex); 2954 2955 if (len != 0) 2956 buf = KERNADDR(&xfer->dmabuf); 2957 2958 #define C(x,y) ((x) | ((y) << 8)) 2959 switch(C(req->bRequest, req->bmRequestType)) { 2960 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2961 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2962 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2963 /* 2964 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2965 * for the integrated root hub. 2966 */ 2967 break; 2968 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2969 if (len > 0) { 2970 *(u_int8_t *)buf = sc->sc_conf; 2971 totlen = 1; 2972 } 2973 break; 2974 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2975 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2976 switch(value >> 8) { 2977 case UDESC_DEVICE: 2978 if ((value & 0xff) != 0) { 2979 err = USBD_IOERROR; 2980 goto ret; 2981 } 2982 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2983 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2984 memcpy(buf, &uhci_devd, l); 2985 break; 2986 case UDESC_CONFIG: 2987 if ((value & 0xff) != 0) { 2988 err = USBD_IOERROR; 2989 goto ret; 2990 } 2991 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2992 memcpy(buf, &uhci_confd, l); 2993 buf = (char *)buf + l; 2994 len -= l; 2995 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2996 totlen += l; 2997 memcpy(buf, &uhci_ifcd, l); 2998 buf = (char *)buf + l; 2999 len -= l; 3000 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3001 totlen += l; 3002 memcpy(buf, &uhci_endpd, l); 3003 break; 3004 case UDESC_STRING: 3005 if (len == 0) 3006 break; 3007 *(u_int8_t *)buf = 0; 3008 totlen = 1; 3009 switch (value & 0xff) { 3010 case 1: /* Vendor */ 3011 totlen = uhci_str(buf, len, sc->sc_vendor); 3012 break; 3013 case 2: /* Product */ 3014 totlen = uhci_str(buf, len, "UHCI root hub"); 3015 break; 3016 } 3017 break; 3018 default: 3019 err = USBD_IOERROR; 3020 goto ret; 3021 } 3022 break; 3023 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3024 if (len > 0) { 3025 *(u_int8_t *)buf = 0; 3026 totlen = 1; 3027 } 3028 break; 3029 case C(UR_GET_STATUS, UT_READ_DEVICE): 3030 if (len > 1) { 3031 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3032 totlen = 2; 3033 } 3034 break; 3035 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3036 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3037 if (len > 1) { 3038 USETW(((usb_status_t *)buf)->wStatus, 0); 3039 totlen = 2; 3040 } 3041 break; 3042 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3043 if (value >= USB_MAX_DEVICES) { 3044 err = USBD_IOERROR; 3045 goto ret; 3046 } 3047 sc->sc_addr = value; 3048 break; 3049 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3050 if (value != 0 && value != 1) { 3051 err = USBD_IOERROR; 3052 goto ret; 3053 } 3054 sc->sc_conf = value; 3055 break; 3056 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3057 break; 3058 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3059 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3060 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3061 err = USBD_IOERROR; 3062 goto ret; 3063 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3064 break; 3065 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3066 break; 3067 /* Hub requests */ 3068 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3069 break; 3070 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3071 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3072 "port=%d feature=%d\n", 3073 index, value)); 3074 if (index == 1) 3075 port = UHCI_PORTSC1; 3076 else if (index == 2) 3077 port = UHCI_PORTSC2; 3078 else { 3079 err = USBD_IOERROR; 3080 goto ret; 3081 } 3082 switch(value) { 3083 case UHF_PORT_ENABLE: 3084 x = URWMASK(UREAD2(sc, port)); 3085 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3086 break; 3087 case UHF_PORT_SUSPEND: 3088 x = URWMASK(UREAD2(sc, port)); 3089 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3090 break; 3091 case UHF_PORT_RESET: 3092 x = URWMASK(UREAD2(sc, port)); 3093 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3094 break; 3095 case UHF_C_PORT_CONNECTION: 3096 x = URWMASK(UREAD2(sc, port)); 3097 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3098 break; 3099 case UHF_C_PORT_ENABLE: 3100 x = URWMASK(UREAD2(sc, port)); 3101 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3102 break; 3103 case UHF_C_PORT_OVER_CURRENT: 3104 x = URWMASK(UREAD2(sc, port)); 3105 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3106 break; 3107 case UHF_C_PORT_RESET: 3108 sc->sc_isreset = 0; 3109 err = USBD_NORMAL_COMPLETION; 3110 goto ret; 3111 case UHF_PORT_CONNECTION: 3112 case UHF_PORT_OVER_CURRENT: 3113 case UHF_PORT_POWER: 3114 case UHF_PORT_LOW_SPEED: 3115 case UHF_C_PORT_SUSPEND: 3116 default: 3117 err = USBD_IOERROR; 3118 goto ret; 3119 } 3120 break; 3121 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3122 if (index == 1) 3123 port = UHCI_PORTSC1; 3124 else if (index == 2) 3125 port = UHCI_PORTSC2; 3126 else { 3127 err = USBD_IOERROR; 3128 goto ret; 3129 } 3130 if (len > 0) { 3131 *(u_int8_t *)buf = 3132 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3133 UHCI_PORTSC_LS_SHIFT; 3134 totlen = 1; 3135 } 3136 break; 3137 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3138 if (value != 0) { 3139 err = USBD_IOERROR; 3140 goto ret; 3141 } 3142 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3143 totlen = l; 3144 memcpy(buf, &uhci_hubd_piix, l); 3145 break; 3146 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3147 if (len != 4) { 3148 err = USBD_IOERROR; 3149 goto ret; 3150 } 3151 memset(buf, 0, len); 3152 totlen = len; 3153 break; 3154 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3155 if (index == 1) 3156 port = UHCI_PORTSC1; 3157 else if (index == 2) 3158 port = UHCI_PORTSC2; 3159 else { 3160 err = USBD_IOERROR; 3161 goto ret; 3162 } 3163 if (len != 4) { 3164 err = USBD_IOERROR; 3165 goto ret; 3166 } 3167 x = UREAD2(sc, port); 3168 status = change = 0; 3169 if (x & UHCI_PORTSC_CCS) 3170 status |= UPS_CURRENT_CONNECT_STATUS; 3171 if (x & UHCI_PORTSC_CSC) 3172 change |= UPS_C_CONNECT_STATUS; 3173 if (x & UHCI_PORTSC_PE) 3174 status |= UPS_PORT_ENABLED; 3175 if (x & UHCI_PORTSC_POEDC) 3176 change |= UPS_C_PORT_ENABLED; 3177 if (x & UHCI_PORTSC_OCI) 3178 status |= UPS_OVERCURRENT_INDICATOR; 3179 if (x & UHCI_PORTSC_OCIC) 3180 change |= UPS_C_OVERCURRENT_INDICATOR; 3181 if (x & UHCI_PORTSC_SUSP) 3182 status |= UPS_SUSPEND; 3183 if (x & UHCI_PORTSC_LSDA) 3184 status |= UPS_LOW_SPEED; 3185 status |= UPS_PORT_POWER; 3186 if (sc->sc_isreset) 3187 change |= UPS_C_PORT_RESET; 3188 USETW(ps.wPortStatus, status); 3189 USETW(ps.wPortChange, change); 3190 l = min(len, sizeof ps); 3191 memcpy(buf, &ps, l); 3192 totlen = l; 3193 break; 3194 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3195 err = USBD_IOERROR; 3196 goto ret; 3197 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3198 break; 3199 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3200 if (index == 1) 3201 port = UHCI_PORTSC1; 3202 else if (index == 2) 3203 port = UHCI_PORTSC2; 3204 else { 3205 err = USBD_IOERROR; 3206 goto ret; 3207 } 3208 switch(value) { 3209 case UHF_PORT_ENABLE: 3210 x = URWMASK(UREAD2(sc, port)); 3211 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3212 break; 3213 case UHF_PORT_SUSPEND: 3214 x = URWMASK(UREAD2(sc, port)); 3215 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3216 break; 3217 case UHF_PORT_RESET: 3218 x = URWMASK(UREAD2(sc, port)); 3219 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3220 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3221 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3222 delay(100); 3223 x = UREAD2(sc, port); 3224 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3225 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3226 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3227 index, UREAD2(sc, port))); 3228 sc->sc_isreset = 1; 3229 break; 3230 case UHF_PORT_POWER: 3231 /* Pretend we turned on power */ 3232 err = USBD_NORMAL_COMPLETION; 3233 goto ret; 3234 case UHF_C_PORT_CONNECTION: 3235 case UHF_C_PORT_ENABLE: 3236 case UHF_C_PORT_OVER_CURRENT: 3237 case UHF_PORT_CONNECTION: 3238 case UHF_PORT_OVER_CURRENT: 3239 case UHF_PORT_LOW_SPEED: 3240 case UHF_C_PORT_SUSPEND: 3241 case UHF_C_PORT_RESET: 3242 default: 3243 err = USBD_IOERROR; 3244 goto ret; 3245 } 3246 break; 3247 default: 3248 err = USBD_IOERROR; 3249 goto ret; 3250 } 3251 xfer->actlen = totlen; 3252 err = USBD_NORMAL_COMPLETION; 3253 ret: 3254 xfer->status = err; 3255 s = splusb(); 3256 usb_transfer_complete(xfer); 3257 splx(s); 3258 return (USBD_IN_PROGRESS); 3259 } 3260 3261 /* Abort a root control request. */ 3262 void 3263 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3264 { 3265 /* Nothing to do, all transfers are synchronous. */ 3266 } 3267 3268 /* Close the root pipe. */ 3269 void 3270 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3271 { 3272 DPRINTF(("uhci_root_ctrl_close\n")); 3273 } 3274 3275 /* Abort a root interrupt request. */ 3276 void 3277 uhci_root_intr_abort(usbd_xfer_handle xfer) 3278 { 3279 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3280 3281 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3282 sc->sc_intr_xfer = NULL; 3283 3284 if (xfer->pipe->intrxfer == xfer) { 3285 DPRINTF(("uhci_root_intr_abort: remove\n")); 3286 xfer->pipe->intrxfer = 0; 3287 } 3288 xfer->status = USBD_CANCELLED; 3289 #ifdef DIAGNOSTIC 3290 UXFER(xfer)->iinfo.isdone = 1; 3291 #endif 3292 usb_transfer_complete(xfer); 3293 } 3294 3295 usbd_status 3296 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3297 { 3298 usbd_status err; 3299 3300 /* Insert last in queue. */ 3301 err = usb_insert_transfer(xfer); 3302 if (err) 3303 return (err); 3304 3305 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3306 * start first 3307 */ 3308 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3309 } 3310 3311 /* Start a transfer on the root interrupt pipe */ 3312 usbd_status 3313 uhci_root_intr_start(usbd_xfer_handle xfer) 3314 { 3315 usbd_pipe_handle pipe = xfer->pipe; 3316 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3317 3318 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3319 xfer, xfer->length, xfer->flags)); 3320 3321 if (sc->sc_dying) 3322 return (USBD_IOERROR); 3323 3324 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3325 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3326 sc->sc_intr_xfer = xfer; 3327 return (USBD_IN_PROGRESS); 3328 } 3329 3330 /* Close the root interrupt pipe. */ 3331 void 3332 uhci_root_intr_close(usbd_pipe_handle pipe) 3333 { 3334 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3335 3336 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3337 sc->sc_intr_xfer = NULL; 3338 DPRINTF(("uhci_root_intr_close\n")); 3339 } 3340
Indexes created Tue Sep 23 21:09:50 GMT 2025