uhci.c revision 1.169
1 /* $NetBSD: uhci.c,v 1.169 2003/02/16 23:15:28 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/docs/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.169 2003/02/16 23:15:28 augustss Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #if defined(DIAGNOSTIC) && defined(__i386__) 66 #include <machine/cpu.h> 67 #endif 68 #endif 69 #include <sys/proc.h> 70 #include <sys/queue.h> 71 72 #include <machine/bus.h> 73 #include <machine/endian.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdivar.h> 78 #include <dev/usb/usb_mem.h> 79 #include <dev/usb/usb_quirks.h> 80 81 #include <dev/usb/uhcireg.h> 82 #include <dev/usb/uhcivar.h> 83 84 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 85 /*#define UHCI_CTL_LOOP */ 86 87 #if defined(__FreeBSD__) 88 #include <machine/clock.h> 89 90 #define delay(d) DELAY(d) 91 #endif 92 93 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data strored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 uhci_soft_qh_t **qhs; 149 } intr; 150 /* Bulk pipe */ 151 struct { 152 uhci_soft_qh_t *sqh; 153 u_int length; 154 int isread; 155 } bulk; 156 /* Iso pipe */ 157 struct iso { 158 uhci_soft_td_t **stds; 159 int next, inuse; 160 } iso; 161 } u; 162 }; 163 164 Static void uhci_globalreset(uhci_softc_t *); 165 Static usbd_status uhci_portreset(uhci_softc_t*, int); 166 Static void uhci_reset(uhci_softc_t *); 167 Static void uhci_shutdown(void *v); 168 Static void uhci_power(int, void *); 169 Static usbd_status uhci_run(uhci_softc_t *, int run); 170 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 171 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 172 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 173 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 174 #if 0 175 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 176 uhci_intr_info_t *); 177 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 178 #endif 179 180 Static void uhci_free_std_chain(uhci_softc_t *, 181 uhci_soft_td_t *, uhci_soft_td_t *); 182 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 183 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 184 uhci_soft_td_t **, uhci_soft_td_t **); 185 Static void uhci_poll_hub(void *); 186 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 187 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 188 Static void uhci_idone(uhci_intr_info_t *); 189 190 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 191 192 Static void uhci_timeout(void *); 193 Static void uhci_timeout_task(void *); 194 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 200 Static int uhci_str(usb_string_descriptor_t *, int, char *); 201 Static void uhci_add_loop(uhci_softc_t *sc); 202 Static void uhci_rem_loop(uhci_softc_t *sc); 203 204 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 205 Static void uhci_device_isoc_enter(usbd_xfer_handle); 206 207 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 208 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 209 210 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 211 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 212 213 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 215 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 216 Static void uhci_device_ctrl_close(usbd_pipe_handle); 217 Static void uhci_device_ctrl_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 221 Static void uhci_device_intr_abort(usbd_xfer_handle); 222 Static void uhci_device_intr_close(usbd_pipe_handle); 223 Static void uhci_device_intr_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 227 Static void uhci_device_bulk_abort(usbd_xfer_handle); 228 Static void uhci_device_bulk_close(usbd_pipe_handle); 229 Static void uhci_device_bulk_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 233 Static void uhci_device_isoc_abort(usbd_xfer_handle); 234 Static void uhci_device_isoc_close(usbd_pipe_handle); 235 Static void uhci_device_isoc_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 239 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 240 Static void uhci_root_ctrl_close(usbd_pipe_handle); 241 Static void uhci_root_ctrl_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 244 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 245 Static void uhci_root_intr_abort(usbd_xfer_handle); 246 Static void uhci_root_intr_close(usbd_pipe_handle); 247 Static void uhci_root_intr_done(usbd_xfer_handle); 248 249 Static usbd_status uhci_open(usbd_pipe_handle); 250 Static void uhci_poll(struct usbd_bus *); 251 Static void uhci_softintr(void *); 252 253 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 254 255 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 258 struct uhci_pipe *pipe, int ival); 259 260 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 261 Static void uhci_noop(usbd_pipe_handle pipe); 262 263 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 264 uhci_soft_qh_t *); 265 266 #ifdef UHCI_DEBUG 267 Static void uhci_dump_all(uhci_softc_t *); 268 Static void uhci_dumpregs(uhci_softc_t *); 269 Static void uhci_dump_qhs(uhci_soft_qh_t *); 270 Static void uhci_dump_qh(uhci_soft_qh_t *); 271 Static void uhci_dump_tds(uhci_soft_td_t *); 272 Static void uhci_dump_td(uhci_soft_td_t *); 273 Static void uhci_dump_ii(uhci_intr_info_t *ii); 274 void uhci_dump(void); 275 #endif 276 277 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 278 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 279 #define UWRITE1(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 281 } while (/*CONSTCOND*/0) 282 #define UWRITE2(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 284 } while (/*CONSTCOND*/0) 285 #define UWRITE4(sc, r, x) \ 286 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 287 } while (/*CONSTCOND*/0) 288 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 289 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 290 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 291 292 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 293 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 294 295 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 296 297 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 298 299 #define UHCI_INTR_ENDPT 1 300 301 struct usbd_bus_methods uhci_bus_methods = { 302 uhci_open, 303 uhci_softintr, 304 uhci_poll, 305 uhci_allocm, 306 uhci_freem, 307 uhci_allocx, 308 uhci_freex, 309 }; 310 311 struct usbd_pipe_methods uhci_root_ctrl_methods = { 312 uhci_root_ctrl_transfer, 313 uhci_root_ctrl_start, 314 uhci_root_ctrl_abort, 315 uhci_root_ctrl_close, 316 uhci_noop, 317 uhci_root_ctrl_done, 318 }; 319 320 struct usbd_pipe_methods uhci_root_intr_methods = { 321 uhci_root_intr_transfer, 322 uhci_root_intr_start, 323 uhci_root_intr_abort, 324 uhci_root_intr_close, 325 uhci_noop, 326 uhci_root_intr_done, 327 }; 328 329 struct usbd_pipe_methods uhci_device_ctrl_methods = { 330 uhci_device_ctrl_transfer, 331 uhci_device_ctrl_start, 332 uhci_device_ctrl_abort, 333 uhci_device_ctrl_close, 334 uhci_noop, 335 uhci_device_ctrl_done, 336 }; 337 338 struct usbd_pipe_methods uhci_device_intr_methods = { 339 uhci_device_intr_transfer, 340 uhci_device_intr_start, 341 uhci_device_intr_abort, 342 uhci_device_intr_close, 343 uhci_device_clear_toggle, 344 uhci_device_intr_done, 345 }; 346 347 struct usbd_pipe_methods uhci_device_bulk_methods = { 348 uhci_device_bulk_transfer, 349 uhci_device_bulk_start, 350 uhci_device_bulk_abort, 351 uhci_device_bulk_close, 352 uhci_device_clear_toggle, 353 uhci_device_bulk_done, 354 }; 355 356 struct usbd_pipe_methods uhci_device_isoc_methods = { 357 uhci_device_isoc_transfer, 358 uhci_device_isoc_start, 359 uhci_device_isoc_abort, 360 uhci_device_isoc_close, 361 uhci_noop, 362 uhci_device_isoc_done, 363 }; 364 365 #define uhci_add_intr_info(sc, ii) \ 366 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 367 #define uhci_del_intr_info(ii) \ 368 do { \ 369 LIST_REMOVE((ii), list); \ 370 (ii)->list.le_prev = NULL; \ 371 } while (0) 372 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 373 374 Static __inline__ uhci_soft_qh_t * 375 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 376 { 377 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 378 379 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 380 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 381 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 382 printf("uhci_find_prev_qh: QH not found\n"); 383 return (NULL); 384 } 385 #endif 386 } 387 return (pqh); 388 } 389 390 void 391 uhci_globalreset(uhci_softc_t *sc) 392 { 393 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 394 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 395 UHCICMD(sc, 0); /* do nothing */ 396 } 397 398 usbd_status 399 uhci_init(uhci_softc_t *sc) 400 { 401 usbd_status err; 402 int i, j; 403 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 404 uhci_soft_td_t *std; 405 406 DPRINTFN(1,("uhci_init: start\n")); 407 408 #ifdef UHCI_DEBUG 409 thesc = sc; 410 411 if (uhcidebug > 2) 412 uhci_dumpregs(sc); 413 #endif 414 415 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 416 uhci_globalreset(sc); /* reset the controller */ 417 uhci_reset(sc); 418 419 /* Allocate and initialize real frame array. */ 420 err = usb_allocmem(&sc->sc_bus, 421 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 422 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 423 if (err) 424 return (err); 425 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 426 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 427 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 428 429 /* 430 * Allocate a TD, inactive, that hangs from the last QH. 431 * This is to avoid a bug in the PIIX that makes it run berserk 432 * otherwise. 433 */ 434 std = uhci_alloc_std(sc); 435 if (std == NULL) 436 return (USBD_NOMEM); 437 std->link.std = NULL; 438 std->td.td_link = htole32(UHCI_PTR_T); 439 std->td.td_status = htole32(0); /* inactive */ 440 std->td.td_token = htole32(0); 441 std->td.td_buffer = htole32(0); 442 443 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 444 lsqh = uhci_alloc_sqh(sc); 445 if (lsqh == NULL) 446 return (USBD_NOMEM); 447 lsqh->hlink = NULL; 448 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 449 lsqh->elink = std; 450 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 451 sc->sc_last_qh = lsqh; 452 453 /* Allocate the dummy QH where bulk traffic will be queued. */ 454 bsqh = uhci_alloc_sqh(sc); 455 if (bsqh == NULL) 456 return (USBD_NOMEM); 457 bsqh->hlink = lsqh; 458 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 459 bsqh->elink = NULL; 460 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 461 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 462 463 /* Allocate dummy QH where high speed control traffic will be queued. */ 464 chsqh = uhci_alloc_sqh(sc); 465 if (chsqh == NULL) 466 return (USBD_NOMEM); 467 chsqh->hlink = bsqh; 468 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 469 chsqh->elink = NULL; 470 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 471 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 472 473 /* Allocate dummy QH where control traffic will be queued. */ 474 clsqh = uhci_alloc_sqh(sc); 475 if (clsqh == NULL) 476 return (USBD_NOMEM); 477 clsqh->hlink = bsqh; 478 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 479 clsqh->elink = NULL; 480 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 481 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 482 483 /* 484 * Make all (virtual) frame list pointers point to the interrupt 485 * queue heads and the interrupt queue heads at the control 486 * queue head and point the physical frame list to the virtual. 487 */ 488 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 489 std = uhci_alloc_std(sc); 490 sqh = uhci_alloc_sqh(sc); 491 if (std == NULL || sqh == NULL) 492 return (USBD_NOMEM); 493 std->link.sqh = sqh; 494 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 495 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 496 std->td.td_token = htole32(0); 497 std->td.td_buffer = htole32(0); 498 sqh->hlink = clsqh; 499 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 500 sqh->elink = NULL; 501 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 502 sc->sc_vframes[i].htd = std; 503 sc->sc_vframes[i].etd = std; 504 sc->sc_vframes[i].hqh = sqh; 505 sc->sc_vframes[i].eqh = sqh; 506 for (j = i; 507 j < UHCI_FRAMELIST_COUNT; 508 j += UHCI_VFRAMELIST_COUNT) 509 sc->sc_pframes[j] = htole32(std->physaddr); 510 } 511 512 LIST_INIT(&sc->sc_intrhead); 513 514 SIMPLEQ_INIT(&sc->sc_free_xfers); 515 516 usb_callout_init(sc->sc_poll_handle); 517 518 /* Set up the bus struct. */ 519 sc->sc_bus.methods = &uhci_bus_methods; 520 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 521 522 #if defined(__NetBSD__) || defined(__OpenBSD__) 523 sc->sc_suspend = PWR_RESUME; 524 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 525 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 526 #endif 527 528 DPRINTFN(1,("uhci_init: enabling\n")); 529 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 530 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 531 532 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 533 534 return (uhci_run(sc, 1)); /* and here we go... */ 535 } 536 537 #if defined(__NetBSD__) || defined(__OpenBSD__) 538 int 539 uhci_activate(device_ptr_t self, enum devact act) 540 { 541 struct uhci_softc *sc = (struct uhci_softc *)self; 542 int rv = 0; 543 544 switch (act) { 545 case DVACT_ACTIVATE: 546 return (EOPNOTSUPP); 547 break; 548 549 case DVACT_DEACTIVATE: 550 if (sc->sc_child != NULL) 551 rv = config_deactivate(sc->sc_child); 552 break; 553 } 554 return (rv); 555 } 556 557 int 558 uhci_detach(struct uhci_softc *sc, int flags) 559 { 560 usbd_xfer_handle xfer; 561 int rv = 0; 562 563 if (sc->sc_child != NULL) 564 rv = config_detach(sc->sc_child, flags); 565 566 if (rv != 0) 567 return (rv); 568 569 #if defined(__NetBSD__) || defined(__OpenBSD__) 570 powerhook_disestablish(sc->sc_powerhook); 571 shutdownhook_disestablish(sc->sc_shutdownhook); 572 #endif 573 574 /* Free all xfers associated with this HC. */ 575 for (;;) { 576 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 577 if (xfer == NULL) 578 break; 579 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 580 free(xfer, M_USB); 581 } 582 583 /* XXX free other data structures XXX */ 584 585 return (rv); 586 } 587 #endif 588 589 usbd_status 590 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 591 { 592 struct uhci_softc *sc = (struct uhci_softc *)bus; 593 u_int32_t n; 594 595 /* 596 * XXX 597 * Since we are allocating a buffer we can assume that we will 598 * need TDs for it. Since we don't want to allocate those from 599 * an interrupt context, we allocate them here and free them again. 600 * This is no guarantee that we'll get the TDs next time... 601 */ 602 n = size / 8; 603 if (n > 16) { 604 u_int32_t i; 605 uhci_soft_td_t **stds; 606 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 607 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 608 M_WAITOK|M_ZERO); 609 for(i=0; i < n; i++) 610 stds[i] = uhci_alloc_std(sc); 611 for(i=0; i < n; i++) 612 if (stds[i] != NULL) 613 uhci_free_std(sc, stds[i]); 614 free(stds, M_TEMP); 615 } 616 617 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 618 } 619 620 void 621 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 622 { 623 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 624 } 625 626 usbd_xfer_handle 627 uhci_allocx(struct usbd_bus *bus) 628 { 629 struct uhci_softc *sc = (struct uhci_softc *)bus; 630 usbd_xfer_handle xfer; 631 632 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 633 if (xfer != NULL) { 634 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 635 #ifdef DIAGNOSTIC 636 if (xfer->busy_free != XFER_FREE) { 637 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 638 xfer->busy_free); 639 } 640 #endif 641 } else { 642 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 643 } 644 if (xfer != NULL) { 645 memset(xfer, 0, sizeof (struct uhci_xfer)); 646 UXFER(xfer)->iinfo.sc = sc; 647 #ifdef DIAGNOSTIC 648 UXFER(xfer)->iinfo.isdone = 1; 649 xfer->busy_free = XFER_BUSY; 650 #endif 651 } 652 return (xfer); 653 } 654 655 void 656 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 657 { 658 struct uhci_softc *sc = (struct uhci_softc *)bus; 659 660 #ifdef DIAGNOSTIC 661 if (xfer->busy_free != XFER_BUSY) { 662 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 663 xfer->busy_free); 664 return; 665 } 666 xfer->busy_free = XFER_FREE; 667 if (!UXFER(xfer)->iinfo.isdone) { 668 printf("uhci_freex: !isdone\n"); 669 return; 670 } 671 #endif 672 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 673 } 674 675 /* 676 * Shut down the controller when the system is going down. 677 */ 678 void 679 uhci_shutdown(void *v) 680 { 681 uhci_softc_t *sc = v; 682 683 DPRINTF(("uhci_shutdown: stopping the HC\n")); 684 uhci_run(sc, 0); /* stop the controller */ 685 } 686 687 /* 688 * Handle suspend/resume. 689 * 690 * We need to switch to polling mode here, because this routine is 691 * called from an interrupt context. This is all right since we 692 * are almost suspended anyway. 693 */ 694 void 695 uhci_power(int why, void *v) 696 { 697 uhci_softc_t *sc = v; 698 int cmd; 699 int s; 700 701 s = splhardusb(); 702 cmd = UREAD2(sc, UHCI_CMD); 703 704 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 705 sc, why, sc->sc_suspend, cmd)); 706 707 switch (why) { 708 case PWR_SUSPEND: 709 case PWR_STANDBY: 710 #ifdef UHCI_DEBUG 711 if (uhcidebug > 2) 712 uhci_dumpregs(sc); 713 #endif 714 if (sc->sc_intr_xfer != NULL) 715 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 716 sc->sc_intr_xfer); 717 sc->sc_bus.use_polling++; 718 uhci_run(sc, 0); /* stop the controller */ 719 720 /* save some state if BIOS doesn't */ 721 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 722 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 723 724 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 725 726 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 727 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 728 sc->sc_suspend = why; 729 sc->sc_bus.use_polling--; 730 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 731 break; 732 case PWR_RESUME: 733 #ifdef DIAGNOSTIC 734 if (sc->sc_suspend == PWR_RESUME) 735 printf("uhci_power: weird, resume without suspend.\n"); 736 #endif 737 sc->sc_bus.use_polling++; 738 sc->sc_suspend = why; 739 if (cmd & UHCI_CMD_RS) 740 uhci_run(sc, 0); /* in case BIOS has started it */ 741 742 /* restore saved state */ 743 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 744 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 745 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 746 747 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 748 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 749 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 750 UHCICMD(sc, UHCI_CMD_MAXP); 751 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 752 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 753 uhci_run(sc, 1); /* and start traffic again */ 754 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 755 sc->sc_bus.use_polling--; 756 if (sc->sc_intr_xfer != NULL) 757 usb_callout(sc->sc_poll_handle, sc->sc_ival, 758 uhci_poll_hub, sc->sc_intr_xfer); 759 #ifdef UHCI_DEBUG 760 if (uhcidebug > 2) 761 uhci_dumpregs(sc); 762 #endif 763 break; 764 case PWR_SOFTSUSPEND: 765 case PWR_SOFTSTANDBY: 766 case PWR_SOFTRESUME: 767 break; 768 } 769 splx(s); 770 } 771 772 #ifdef UHCI_DEBUG 773 Static void 774 uhci_dumpregs(uhci_softc_t *sc) 775 { 776 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 777 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 778 USBDEVNAME(sc->sc_bus.bdev), 779 UREAD2(sc, UHCI_CMD), 780 UREAD2(sc, UHCI_STS), 781 UREAD2(sc, UHCI_INTR), 782 UREAD2(sc, UHCI_FRNUM), 783 UREAD4(sc, UHCI_FLBASEADDR), 784 UREAD1(sc, UHCI_SOF), 785 UREAD2(sc, UHCI_PORTSC1), 786 UREAD2(sc, UHCI_PORTSC2))); 787 } 788 789 void 790 uhci_dump_td(uhci_soft_td_t *p) 791 { 792 char sbuf[128], sbuf2[128]; 793 794 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 795 "token=0x%08lx buffer=0x%08lx\n", 796 p, (long)p->physaddr, 797 (long)le32toh(p->td.td_link), 798 (long)le32toh(p->td.td_status), 799 (long)le32toh(p->td.td_token), 800 (long)le32toh(p->td.td_buffer))); 801 802 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 803 sbuf, sizeof(sbuf)); 804 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 805 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 806 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 807 sbuf2, sizeof(sbuf2)); 808 809 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 810 "D=%d,maxlen=%d\n", sbuf, sbuf2, 811 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 812 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 813 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 814 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 815 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 816 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 817 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 818 } 819 820 void 821 uhci_dump_qh(uhci_soft_qh_t *sqh) 822 { 823 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 824 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 825 le32toh(sqh->qh.qh_elink))); 826 } 827 828 829 #if 1 830 void 831 uhci_dump(void) 832 { 833 uhci_dump_all(thesc); 834 } 835 #endif 836 837 void 838 uhci_dump_all(uhci_softc_t *sc) 839 { 840 uhci_dumpregs(sc); 841 printf("intrs=%d\n", sc->sc_bus.no_intrs); 842 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 843 uhci_dump_qh(sc->sc_lctl_start); 844 } 845 846 847 void 848 uhci_dump_qhs(uhci_soft_qh_t *sqh) 849 { 850 uhci_dump_qh(sqh); 851 852 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 853 * Traverses sideways first, then down. 854 * 855 * QH1 856 * QH2 857 * No QH 858 * TD2.1 859 * TD2.2 860 * TD1.1 861 * etc. 862 * 863 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 864 */ 865 866 867 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 868 uhci_dump_qhs(sqh->hlink); 869 else 870 DPRINTF(("No QH\n")); 871 872 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 873 uhci_dump_tds(sqh->elink); 874 else 875 DPRINTF(("No TD\n")); 876 } 877 878 void 879 uhci_dump_tds(uhci_soft_td_t *std) 880 { 881 uhci_soft_td_t *td; 882 883 for(td = std; td != NULL; td = td->link.std) { 884 uhci_dump_td(td); 885 886 /* Check whether the link pointer in this TD marks 887 * the link pointer as end of queue. This avoids 888 * printing the free list in case the queue/TD has 889 * already been moved there (seatbelt). 890 */ 891 if (le32toh(td->td.td_link) & UHCI_PTR_T || 892 le32toh(td->td.td_link) == 0) 893 break; 894 } 895 } 896 897 Static void 898 uhci_dump_ii(uhci_intr_info_t *ii) 899 { 900 usbd_pipe_handle pipe; 901 usb_endpoint_descriptor_t *ed; 902 usbd_device_handle dev; 903 904 #ifdef DIAGNOSTIC 905 #define DONE ii->isdone 906 #else 907 #define DONE 0 908 #endif 909 if (ii == NULL) { 910 printf("ii NULL\n"); 911 return; 912 } 913 if (ii->xfer == NULL) { 914 printf("ii %p: done=%d xfer=NULL\n", 915 ii, DONE); 916 return; 917 } 918 pipe = ii->xfer->pipe; 919 if (pipe == NULL) { 920 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 921 ii, DONE, ii->xfer); 922 return; 923 } 924 if (pipe->endpoint == NULL) { 925 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 926 ii, DONE, ii->xfer, pipe); 927 return; 928 } 929 if (pipe->device == NULL) { 930 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 931 ii, DONE, ii->xfer, pipe); 932 return; 933 } 934 ed = pipe->endpoint->edesc; 935 dev = pipe->device; 936 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", 937 ii, DONE, ii->xfer, dev, 938 UGETW(dev->ddesc.idVendor), 939 UGETW(dev->ddesc.idProduct), 940 dev->address, pipe, 941 ed->bEndpointAddress, ed->bmAttributes); 942 #undef DONE 943 } 944 945 void uhci_dump_iis(struct uhci_softc *sc); 946 void 947 uhci_dump_iis(struct uhci_softc *sc) 948 { 949 uhci_intr_info_t *ii; 950 951 printf("intr_info list:\n"); 952 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 953 uhci_dump_ii(ii); 954 } 955 956 void iidump(void); 957 void iidump(void) { uhci_dump_iis(thesc); } 958 959 #endif 960 961 /* 962 * This routine is executed periodically and simulates interrupts 963 * from the root controller interrupt pipe for port status change. 964 */ 965 void 966 uhci_poll_hub(void *addr) 967 { 968 usbd_xfer_handle xfer = addr; 969 usbd_pipe_handle pipe = xfer->pipe; 970 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 971 int s; 972 u_char *p; 973 974 DPRINTFN(20, ("uhci_poll_hub\n")); 975 976 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 977 978 p = KERNADDR(&xfer->dmabuf, 0); 979 p[0] = 0; 980 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 981 p[0] |= 1<<1; 982 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 983 p[0] |= 1<<2; 984 if (p[0] == 0) 985 /* No change, try again in a while */ 986 return; 987 988 xfer->actlen = 1; 989 xfer->status = USBD_NORMAL_COMPLETION; 990 s = splusb(); 991 xfer->device->bus->intr_context++; 992 usb_transfer_complete(xfer); 993 xfer->device->bus->intr_context--; 994 splx(s); 995 } 996 997 void 998 uhci_root_intr_done(usbd_xfer_handle xfer) 999 { 1000 } 1001 1002 void 1003 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1004 { 1005 } 1006 1007 /* 1008 * Let the last QH loop back to the high speed control transfer QH. 1009 * This is what intel calls "bandwidth reclamation" and improves 1010 * USB performance a lot for some devices. 1011 * If we are already looping, just count it. 1012 */ 1013 void 1014 uhci_add_loop(uhci_softc_t *sc) { 1015 #ifdef UHCI_DEBUG 1016 if (uhcinoloop) 1017 return; 1018 #endif 1019 if (++sc->sc_loops == 1) { 1020 DPRINTFN(5,("uhci_start_loop: add\n")); 1021 /* Note, we don't loop back the soft pointer. */ 1022 sc->sc_last_qh->qh.qh_hlink = 1023 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1024 } 1025 } 1026 1027 void 1028 uhci_rem_loop(uhci_softc_t *sc) { 1029 #ifdef UHCI_DEBUG 1030 if (uhcinoloop) 1031 return; 1032 #endif 1033 if (--sc->sc_loops == 0) { 1034 DPRINTFN(5,("uhci_end_loop: remove\n")); 1035 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1036 } 1037 } 1038 1039 /* Add high speed control QH, called at splusb(). */ 1040 void 1041 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1042 { 1043 uhci_soft_qh_t *eqh; 1044 1045 SPLUSBCHECK; 1046 1047 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1048 eqh = sc->sc_hctl_end; 1049 sqh->hlink = eqh->hlink; 1050 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1051 eqh->hlink = sqh; 1052 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1053 sc->sc_hctl_end = sqh; 1054 #ifdef UHCI_CTL_LOOP 1055 uhci_add_loop(sc); 1056 #endif 1057 } 1058 1059 /* Remove high speed control QH, called at splusb(). */ 1060 void 1061 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1062 { 1063 uhci_soft_qh_t *pqh; 1064 1065 SPLUSBCHECK; 1066 1067 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1068 #ifdef UHCI_CTL_LOOP 1069 uhci_rem_loop(sc); 1070 #endif 1071 /* 1072 * The T bit should be set in the elink of the QH so that the HC 1073 * doesn't follow the pointer. This condition may fail if the 1074 * the transferred packet was short so that the QH still points 1075 * at the last used TD. 1076 * In this case we set the T bit and wait a little for the HC 1077 * to stop looking at the TD. 1078 */ 1079 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1080 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1081 delay(UHCI_QH_REMOVE_DELAY); 1082 } 1083 1084 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1085 pqh->hlink = sqh->hlink; 1086 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1087 delay(UHCI_QH_REMOVE_DELAY); 1088 if (sc->sc_hctl_end == sqh) 1089 sc->sc_hctl_end = pqh; 1090 } 1091 1092 /* Add low speed control QH, called at splusb(). */ 1093 void 1094 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1095 { 1096 uhci_soft_qh_t *eqh; 1097 1098 SPLUSBCHECK; 1099 1100 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1101 eqh = sc->sc_lctl_end; 1102 sqh->hlink = eqh->hlink; 1103 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1104 eqh->hlink = sqh; 1105 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1106 sc->sc_lctl_end = sqh; 1107 } 1108 1109 /* Remove low speed control QH, called at splusb(). */ 1110 void 1111 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1112 { 1113 uhci_soft_qh_t *pqh; 1114 1115 SPLUSBCHECK; 1116 1117 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1118 /* See comment in uhci_remove_hs_ctrl() */ 1119 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1120 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1121 delay(UHCI_QH_REMOVE_DELAY); 1122 } 1123 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1124 pqh->hlink = sqh->hlink; 1125 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1126 delay(UHCI_QH_REMOVE_DELAY); 1127 if (sc->sc_lctl_end == sqh) 1128 sc->sc_lctl_end = pqh; 1129 } 1130 1131 /* Add bulk QH, called at splusb(). */ 1132 void 1133 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1134 { 1135 uhci_soft_qh_t *eqh; 1136 1137 SPLUSBCHECK; 1138 1139 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1140 eqh = sc->sc_bulk_end; 1141 sqh->hlink = eqh->hlink; 1142 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1143 eqh->hlink = sqh; 1144 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1145 sc->sc_bulk_end = sqh; 1146 uhci_add_loop(sc); 1147 } 1148 1149 /* Remove bulk QH, called at splusb(). */ 1150 void 1151 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1152 { 1153 uhci_soft_qh_t *pqh; 1154 1155 SPLUSBCHECK; 1156 1157 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1158 uhci_rem_loop(sc); 1159 /* See comment in uhci_remove_hs_ctrl() */ 1160 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1161 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1162 delay(UHCI_QH_REMOVE_DELAY); 1163 } 1164 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1165 pqh->hlink = sqh->hlink; 1166 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1167 delay(UHCI_QH_REMOVE_DELAY); 1168 if (sc->sc_bulk_end == sqh) 1169 sc->sc_bulk_end = pqh; 1170 } 1171 1172 Static int uhci_intr1(uhci_softc_t *); 1173 1174 int 1175 uhci_intr(void *arg) 1176 { 1177 uhci_softc_t *sc = arg; 1178 1179 if (sc->sc_dying) 1180 return (0); 1181 1182 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1183 if (sc->sc_bus.use_polling) { 1184 #ifdef DIAGNOSTIC 1185 printf("uhci_intr: ignored interrupt while polling\n"); 1186 #endif 1187 return (0); 1188 } 1189 return (uhci_intr1(sc)); 1190 } 1191 1192 int 1193 uhci_intr1(uhci_softc_t *sc) 1194 { 1195 int status; 1196 int ack; 1197 1198 #ifdef UHCI_DEBUG 1199 if (uhcidebug > 15) { 1200 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1201 uhci_dumpregs(sc); 1202 } 1203 #endif 1204 1205 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1206 if (status == 0) /* The interrupt was not for us. */ 1207 return (0); 1208 1209 if (sc->sc_suspend != PWR_RESUME) { 1210 printf("%s: interrupt while not operating ignored\n", 1211 USBDEVNAME(sc->sc_bus.bdev)); 1212 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1213 return (0); 1214 } 1215 1216 ack = 0; 1217 if (status & UHCI_STS_USBINT) 1218 ack |= UHCI_STS_USBINT; 1219 if (status & UHCI_STS_USBEI) 1220 ack |= UHCI_STS_USBEI; 1221 if (status & UHCI_STS_RD) { 1222 ack |= UHCI_STS_RD; 1223 #ifdef UHCI_DEBUG 1224 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1225 #endif 1226 } 1227 if (status & UHCI_STS_HSE) { 1228 ack |= UHCI_STS_HSE; 1229 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1230 } 1231 if (status & UHCI_STS_HCPE) { 1232 ack |= UHCI_STS_HCPE; 1233 printf("%s: host controller process error\n", 1234 USBDEVNAME(sc->sc_bus.bdev)); 1235 } 1236 if (status & UHCI_STS_HCH) { 1237 /* no acknowledge needed */ 1238 if (!sc->sc_dying) { 1239 printf("%s: host controller halted\n", 1240 USBDEVNAME(sc->sc_bus.bdev)); 1241 #ifdef UHCI_DEBUG 1242 uhci_dump_all(sc); 1243 #endif 1244 } 1245 sc->sc_dying = 1; 1246 } 1247 1248 if (!ack) 1249 return (0); /* nothing to acknowledge */ 1250 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1251 1252 sc->sc_bus.no_intrs++; 1253 usb_schedsoftintr(&sc->sc_bus); 1254 1255 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1256 1257 return (1); 1258 } 1259 1260 void 1261 uhci_softintr(void *v) 1262 { 1263 uhci_softc_t *sc = v; 1264 uhci_intr_info_t *ii; 1265 1266 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1267 sc->sc_bus.intr_context)); 1268 1269 sc->sc_bus.intr_context++; 1270 1271 /* 1272 * Interrupts on UHCI really suck. When the host controller 1273 * interrupts because a transfer is completed there is no 1274 * way of knowing which transfer it was. You can scan down 1275 * the TDs and QHs of the previous frame to limit the search, 1276 * but that assumes that the interrupt was not delayed by more 1277 * than 1 ms, which may not always be true (e.g. after debug 1278 * output on a slow console). 1279 * We scan all interrupt descriptors to see if any have 1280 * completed. 1281 */ 1282 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1283 uhci_check_intr(sc, ii); 1284 1285 #ifdef USB_USE_SOFTINTR 1286 if (sc->sc_softwake) { 1287 sc->sc_softwake = 0; 1288 wakeup(&sc->sc_softwake); 1289 } 1290 #endif /* USB_USE_SOFTINTR */ 1291 1292 sc->sc_bus.intr_context--; 1293 } 1294 1295 /* Check for an interrupt. */ 1296 void 1297 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1298 { 1299 uhci_soft_td_t *std, *lstd; 1300 u_int32_t status; 1301 1302 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1303 #ifdef DIAGNOSTIC 1304 if (ii == NULL) { 1305 printf("uhci_check_intr: no ii? %p\n", ii); 1306 return; 1307 } 1308 #endif 1309 if (ii->xfer->status == USBD_CANCELLED || 1310 ii->xfer->status == USBD_TIMEOUT) { 1311 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1312 return; 1313 } 1314 1315 if (ii->stdstart == NULL) 1316 return; 1317 lstd = ii->stdend; 1318 #ifdef DIAGNOSTIC 1319 if (lstd == NULL) { 1320 printf("uhci_check_intr: std==0\n"); 1321 return; 1322 } 1323 #endif 1324 /* 1325 * If the last TD is still active we need to check whether there 1326 * is a an error somewhere in the middle, or whether there was a 1327 * short packet (SPD and not ACTIVE). 1328 */ 1329 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1330 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1331 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1332 status = le32toh(std->td.td_status); 1333 /* If there's an active TD the xfer isn't done. */ 1334 if (status & UHCI_TD_ACTIVE) 1335 break; 1336 /* Any kind of error makes the xfer done. */ 1337 if (status & UHCI_TD_STALLED) 1338 goto done; 1339 /* We want short packets, and it is short: it's done */ 1340 if ((status & UHCI_TD_SPD) && 1341 UHCI_TD_GET_ACTLEN(status) < 1342 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1343 goto done; 1344 } 1345 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1346 ii, ii->stdstart)); 1347 return; 1348 } 1349 done: 1350 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1351 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1352 uhci_idone(ii); 1353 } 1354 1355 /* Called at splusb() */ 1356 void 1357 uhci_idone(uhci_intr_info_t *ii) 1358 { 1359 usbd_xfer_handle xfer = ii->xfer; 1360 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1361 uhci_soft_td_t *std; 1362 u_int32_t status = 0, nstatus; 1363 int actlen; 1364 1365 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1366 #ifdef DIAGNOSTIC 1367 { 1368 int s = splhigh(); 1369 if (ii->isdone) { 1370 splx(s); 1371 #ifdef UHCI_DEBUG 1372 printf("uhci_idone: ii is done!\n "); 1373 uhci_dump_ii(ii); 1374 #else 1375 printf("uhci_idone: ii=%p is done!\n", ii); 1376 #endif 1377 return; 1378 } 1379 ii->isdone = 1; 1380 splx(s); 1381 } 1382 #endif 1383 1384 if (xfer->nframes != 0) { 1385 /* Isoc transfer, do things differently. */ 1386 uhci_soft_td_t **stds = upipe->u.iso.stds; 1387 int i, n, nframes, len; 1388 1389 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1390 1391 nframes = xfer->nframes; 1392 actlen = 0; 1393 n = UXFER(xfer)->curframe; 1394 for (i = 0; i < nframes; i++) { 1395 std = stds[n]; 1396 #ifdef UHCI_DEBUG 1397 if (uhcidebug > 5) { 1398 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1399 uhci_dump_td(std); 1400 } 1401 #endif 1402 if (++n >= UHCI_VFRAMELIST_COUNT) 1403 n = 0; 1404 status = le32toh(std->td.td_status); 1405 len = UHCI_TD_GET_ACTLEN(status); 1406 xfer->frlengths[i] = len; 1407 actlen += len; 1408 } 1409 upipe->u.iso.inuse -= nframes; 1410 xfer->actlen = actlen; 1411 xfer->status = USBD_NORMAL_COMPLETION; 1412 goto end; 1413 } 1414 1415 #ifdef UHCI_DEBUG 1416 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1417 ii, xfer, upipe)); 1418 if (uhcidebug > 10) 1419 uhci_dump_tds(ii->stdstart); 1420 #endif 1421 1422 /* The transfer is done, compute actual length and status. */ 1423 actlen = 0; 1424 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1425 nstatus = le32toh(std->td.td_status); 1426 if (nstatus & UHCI_TD_ACTIVE) 1427 break; 1428 1429 status = nstatus; 1430 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1431 UHCI_TD_PID_SETUP) 1432 actlen += UHCI_TD_GET_ACTLEN(status); 1433 } 1434 /* If there are left over TDs we need to update the toggle. */ 1435 if (std != NULL) 1436 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1437 1438 status &= UHCI_TD_ERROR; 1439 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1440 actlen, status)); 1441 xfer->actlen = actlen; 1442 if (status != 0) { 1443 #ifdef UHCI_DEBUG 1444 char sbuf[128]; 1445 1446 bitmask_snprintf((u_int32_t)status, 1447 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1448 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1449 sbuf, sizeof(sbuf)); 1450 1451 DPRINTFN((status == UHCI_TD_STALLED)*10, 1452 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1453 "status 0x%s\n", 1454 xfer->pipe->device->address, 1455 xfer->pipe->endpoint->edesc->bEndpointAddress, 1456 sbuf)); 1457 #endif 1458 1459 if (status == UHCI_TD_STALLED) 1460 xfer->status = USBD_STALLED; 1461 else 1462 xfer->status = USBD_IOERROR; /* more info XXX */ 1463 } else { 1464 xfer->status = USBD_NORMAL_COMPLETION; 1465 } 1466 1467 end: 1468 usb_transfer_complete(xfer); 1469 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1470 } 1471 1472 /* 1473 * Called when a request does not complete. 1474 */ 1475 void 1476 uhci_timeout(void *addr) 1477 { 1478 uhci_intr_info_t *ii = addr; 1479 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1480 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1481 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1482 1483 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1484 1485 if (sc->sc_dying) { 1486 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1487 return; 1488 } 1489 1490 /* Execute the abort in a process context. */ 1491 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1492 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1493 } 1494 1495 void 1496 uhci_timeout_task(void *addr) 1497 { 1498 usbd_xfer_handle xfer = addr; 1499 int s; 1500 1501 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1502 1503 s = splusb(); 1504 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1505 splx(s); 1506 } 1507 1508 /* 1509 * Wait here until controller claims to have an interrupt. 1510 * Then call uhci_intr and return. Use timeout to avoid waiting 1511 * too long. 1512 * Only used during boot when interrupts are not enabled yet. 1513 */ 1514 void 1515 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1516 { 1517 int timo = xfer->timeout; 1518 uhci_intr_info_t *ii; 1519 1520 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1521 1522 xfer->status = USBD_IN_PROGRESS; 1523 for (; timo >= 0; timo--) { 1524 usb_delay_ms(&sc->sc_bus, 1); 1525 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1526 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1527 uhci_intr1(sc); 1528 if (xfer->status != USBD_IN_PROGRESS) 1529 return; 1530 } 1531 } 1532 1533 /* Timeout */ 1534 DPRINTF(("uhci_waitintr: timeout\n")); 1535 for (ii = LIST_FIRST(&sc->sc_intrhead); 1536 ii != NULL && ii->xfer != xfer; 1537 ii = LIST_NEXT(ii, list)) 1538 ; 1539 #ifdef DIAGNOSTIC 1540 if (ii == NULL) 1541 panic("uhci_waitintr: lost intr_info"); 1542 #endif 1543 uhci_idone(ii); 1544 } 1545 1546 void 1547 uhci_poll(struct usbd_bus *bus) 1548 { 1549 uhci_softc_t *sc = (uhci_softc_t *)bus; 1550 1551 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1552 uhci_intr1(sc); 1553 } 1554 1555 void 1556 uhci_reset(uhci_softc_t *sc) 1557 { 1558 int n; 1559 1560 UHCICMD(sc, UHCI_CMD_HCRESET); 1561 /* The reset bit goes low when the controller is done. */ 1562 for (n = 0; n < UHCI_RESET_TIMEOUT && 1563 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1564 usb_delay_ms(&sc->sc_bus, 1); 1565 if (n >= UHCI_RESET_TIMEOUT) 1566 printf("%s: controller did not reset\n", 1567 USBDEVNAME(sc->sc_bus.bdev)); 1568 } 1569 1570 usbd_status 1571 uhci_run(uhci_softc_t *sc, int run) 1572 { 1573 int s, n, running; 1574 u_int16_t cmd; 1575 1576 run = run != 0; 1577 s = splhardusb(); 1578 DPRINTF(("uhci_run: setting run=%d\n", run)); 1579 cmd = UREAD2(sc, UHCI_CMD); 1580 if (run) 1581 cmd |= UHCI_CMD_RS; 1582 else 1583 cmd &= ~UHCI_CMD_RS; 1584 UHCICMD(sc, cmd); 1585 for(n = 0; n < 10; n++) { 1586 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1587 /* return when we've entered the state we want */ 1588 if (run == running) { 1589 splx(s); 1590 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1591 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1592 return (USBD_NORMAL_COMPLETION); 1593 } 1594 usb_delay_ms(&sc->sc_bus, 1); 1595 } 1596 splx(s); 1597 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1598 run ? "start" : "stop"); 1599 return (USBD_IOERROR); 1600 } 1601 1602 /* 1603 * Memory management routines. 1604 * uhci_alloc_std allocates TDs 1605 * uhci_alloc_sqh allocates QHs 1606 * These two routines do their own free list management, 1607 * partly for speed, partly because allocating DMAable memory 1608 * has page size granularaity so much memory would be wasted if 1609 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1610 */ 1611 1612 uhci_soft_td_t * 1613 uhci_alloc_std(uhci_softc_t *sc) 1614 { 1615 uhci_soft_td_t *std; 1616 usbd_status err; 1617 int i, offs; 1618 usb_dma_t dma; 1619 1620 if (sc->sc_freetds == NULL) { 1621 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1622 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1623 UHCI_TD_ALIGN, &dma); 1624 if (err) 1625 return (0); 1626 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1627 offs = i * UHCI_STD_SIZE; 1628 std = KERNADDR(&dma, offs); 1629 std->physaddr = DMAADDR(&dma, offs); 1630 std->link.std = sc->sc_freetds; 1631 sc->sc_freetds = std; 1632 } 1633 } 1634 std = sc->sc_freetds; 1635 sc->sc_freetds = std->link.std; 1636 memset(&std->td, 0, sizeof(uhci_td_t)); 1637 return std; 1638 } 1639 1640 void 1641 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1642 { 1643 #ifdef DIAGNOSTIC 1644 #define TD_IS_FREE 0x12345678 1645 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1646 printf("uhci_free_std: freeing free TD %p\n", std); 1647 return; 1648 } 1649 std->td.td_token = htole32(TD_IS_FREE); 1650 #endif 1651 std->link.std = sc->sc_freetds; 1652 sc->sc_freetds = std; 1653 } 1654 1655 uhci_soft_qh_t * 1656 uhci_alloc_sqh(uhci_softc_t *sc) 1657 { 1658 uhci_soft_qh_t *sqh; 1659 usbd_status err; 1660 int i, offs; 1661 usb_dma_t dma; 1662 1663 if (sc->sc_freeqhs == NULL) { 1664 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1665 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1666 UHCI_QH_ALIGN, &dma); 1667 if (err) 1668 return (0); 1669 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1670 offs = i * UHCI_SQH_SIZE; 1671 sqh = KERNADDR(&dma, offs); 1672 sqh->physaddr = DMAADDR(&dma, offs); 1673 sqh->hlink = sc->sc_freeqhs; 1674 sc->sc_freeqhs = sqh; 1675 } 1676 } 1677 sqh = sc->sc_freeqhs; 1678 sc->sc_freeqhs = sqh->hlink; 1679 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1680 return (sqh); 1681 } 1682 1683 void 1684 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1685 { 1686 sqh->hlink = sc->sc_freeqhs; 1687 sc->sc_freeqhs = sqh; 1688 } 1689 1690 void 1691 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1692 uhci_soft_td_t *stdend) 1693 { 1694 uhci_soft_td_t *p; 1695 1696 for (; std != stdend; std = p) { 1697 p = std->link.std; 1698 uhci_free_std(sc, std); 1699 } 1700 } 1701 1702 usbd_status 1703 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1704 int rd, u_int16_t flags, usb_dma_t *dma, 1705 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1706 { 1707 uhci_soft_td_t *p, *lastp; 1708 uhci_physaddr_t lastlink; 1709 int i, ntd, l, tog, maxp; 1710 u_int32_t status; 1711 int addr = upipe->pipe.device->address; 1712 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1713 1714 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1715 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1716 upipe->pipe.device->speed, flags)); 1717 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1718 if (maxp == 0) { 1719 printf("uhci_alloc_std_chain: maxp=0\n"); 1720 return (USBD_INVAL); 1721 } 1722 ntd = (len + maxp - 1) / maxp; 1723 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1724 ntd++; 1725 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1726 if (ntd == 0) { 1727 *sp = *ep = 0; 1728 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1729 return (USBD_NORMAL_COMPLETION); 1730 } 1731 tog = upipe->nexttoggle; 1732 if (ntd % 2 == 0) 1733 tog ^= 1; 1734 upipe->nexttoggle = tog ^ 1; 1735 lastp = NULL; 1736 lastlink = UHCI_PTR_T; 1737 ntd--; 1738 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1739 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1740 status |= UHCI_TD_LS; 1741 if (flags & USBD_SHORT_XFER_OK) 1742 status |= UHCI_TD_SPD; 1743 for (i = ntd; i >= 0; i--) { 1744 p = uhci_alloc_std(sc); 1745 if (p == NULL) { 1746 uhci_free_std_chain(sc, lastp, NULL); 1747 return (USBD_NOMEM); 1748 } 1749 p->link.std = lastp; 1750 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1751 lastp = p; 1752 lastlink = p->physaddr; 1753 p->td.td_status = htole32(status); 1754 if (i == ntd) { 1755 /* last TD */ 1756 l = len % maxp; 1757 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1758 l = maxp; 1759 *ep = p; 1760 } else 1761 l = maxp; 1762 p->td.td_token = 1763 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1764 UHCI_TD_OUT(l, endpt, addr, tog)); 1765 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1766 tog ^= 1; 1767 } 1768 *sp = lastp; 1769 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1770 upipe->nexttoggle)); 1771 return (USBD_NORMAL_COMPLETION); 1772 } 1773 1774 void 1775 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1776 { 1777 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1778 upipe->nexttoggle = 0; 1779 } 1780 1781 void 1782 uhci_noop(usbd_pipe_handle pipe) 1783 { 1784 } 1785 1786 usbd_status 1787 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1788 { 1789 usbd_status err; 1790 1791 /* Insert last in queue. */ 1792 err = usb_insert_transfer(xfer); 1793 if (err) 1794 return (err); 1795 1796 /* 1797 * Pipe isn't running (otherwise err would be USBD_INPROG), 1798 * so start it first. 1799 */ 1800 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1801 } 1802 1803 usbd_status 1804 uhci_device_bulk_start(usbd_xfer_handle xfer) 1805 { 1806 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1807 usbd_device_handle dev = upipe->pipe.device; 1808 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1809 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1810 uhci_soft_td_t *data, *dataend; 1811 uhci_soft_qh_t *sqh; 1812 usbd_status err; 1813 int len, isread, endpt; 1814 int s; 1815 1816 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1817 xfer, xfer->length, xfer->flags, ii)); 1818 1819 if (sc->sc_dying) 1820 return (USBD_IOERROR); 1821 1822 #ifdef DIAGNOSTIC 1823 if (xfer->rqflags & URQ_REQUEST) 1824 panic("uhci_device_bulk_transfer: a request"); 1825 #endif 1826 1827 len = xfer->length; 1828 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1829 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1830 sqh = upipe->u.bulk.sqh; 1831 1832 upipe->u.bulk.isread = isread; 1833 upipe->u.bulk.length = len; 1834 1835 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1836 &xfer->dmabuf, &data, &dataend); 1837 if (err) 1838 return (err); 1839 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1840 1841 #ifdef UHCI_DEBUG 1842 if (uhcidebug > 8) { 1843 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1844 uhci_dump_tds(data); 1845 } 1846 #endif 1847 1848 /* Set up interrupt info. */ 1849 ii->xfer = xfer; 1850 ii->stdstart = data; 1851 ii->stdend = dataend; 1852 #ifdef DIAGNOSTIC 1853 if (!ii->isdone) { 1854 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1855 } 1856 ii->isdone = 0; 1857 #endif 1858 1859 sqh->elink = data; 1860 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1861 1862 s = splusb(); 1863 uhci_add_bulk(sc, sqh); 1864 uhci_add_intr_info(sc, ii); 1865 1866 if (xfer->timeout && !sc->sc_bus.use_polling) { 1867 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1868 uhci_timeout, ii); 1869 } 1870 xfer->status = USBD_IN_PROGRESS; 1871 splx(s); 1872 1873 #ifdef UHCI_DEBUG 1874 if (uhcidebug > 10) { 1875 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1876 uhci_dump_tds(data); 1877 } 1878 #endif 1879 1880 if (sc->sc_bus.use_polling) 1881 uhci_waitintr(sc, xfer); 1882 1883 return (USBD_IN_PROGRESS); 1884 } 1885 1886 /* Abort a device bulk request. */ 1887 void 1888 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1889 { 1890 DPRINTF(("uhci_device_bulk_abort:\n")); 1891 uhci_abort_xfer(xfer, USBD_CANCELLED); 1892 } 1893 1894 /* 1895 * Abort a device request. 1896 * If this routine is called at splusb() it guarantees that the request 1897 * will be removed from the hardware scheduling and that the callback 1898 * for it will be called with USBD_CANCELLED status. 1899 * It's impossible to guarantee that the requested transfer will not 1900 * have happened since the hardware runs concurrently. 1901 * If the transaction has already happened we rely on the ordinary 1902 * interrupt processing to process it. 1903 */ 1904 void 1905 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1906 { 1907 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1908 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1909 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1910 uhci_soft_td_t *std; 1911 int s; 1912 1913 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1914 1915 if (sc->sc_dying) { 1916 /* If we're dying, just do the software part. */ 1917 s = splusb(); 1918 xfer->status = status; /* make software ignore it */ 1919 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1920 usb_transfer_complete(xfer); 1921 splx(s); 1922 } 1923 1924 if (xfer->device->bus->intr_context || !curproc) 1925 panic("uhci_abort_xfer: not in process context"); 1926 1927 /* 1928 * Step 1: Make interrupt routine and hardware ignore xfer. 1929 */ 1930 s = splusb(); 1931 xfer->status = status; /* make software ignore it */ 1932 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1933 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1934 for (std = ii->stdstart; std != NULL; std = std->link.std) 1935 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1936 splx(s); 1937 1938 /* 1939 * Step 2: Wait until we know hardware has finished any possible 1940 * use of the xfer. Also make sure the soft interrupt routine 1941 * has run. 1942 */ 1943 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1944 s = splusb(); 1945 #ifdef USB_USE_SOFTINTR 1946 sc->sc_softwake = 1; 1947 #endif /* USB_USE_SOFTINTR */ 1948 usb_schedsoftintr(&sc->sc_bus); 1949 #ifdef USB_USE_SOFTINTR 1950 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1951 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1952 #endif /* USB_USE_SOFTINTR */ 1953 splx(s); 1954 1955 /* 1956 * Step 3: Execute callback. 1957 */ 1958 xfer->hcpriv = ii; 1959 1960 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1961 s = splusb(); 1962 #ifdef DIAGNOSTIC 1963 ii->isdone = 1; 1964 #endif 1965 usb_transfer_complete(xfer); 1966 splx(s); 1967 } 1968 1969 /* Close a device bulk pipe. */ 1970 void 1971 uhci_device_bulk_close(usbd_pipe_handle pipe) 1972 { 1973 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1974 usbd_device_handle dev = upipe->pipe.device; 1975 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1976 1977 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1978 } 1979 1980 usbd_status 1981 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1982 { 1983 usbd_status err; 1984 1985 /* Insert last in queue. */ 1986 err = usb_insert_transfer(xfer); 1987 if (err) 1988 return (err); 1989 1990 /* 1991 * Pipe isn't running (otherwise err would be USBD_INPROG), 1992 * so start it first. 1993 */ 1994 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1995 } 1996 1997 usbd_status 1998 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1999 { 2000 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2001 usbd_status err; 2002 2003 if (sc->sc_dying) 2004 return (USBD_IOERROR); 2005 2006 #ifdef DIAGNOSTIC 2007 if (!(xfer->rqflags & URQ_REQUEST)) 2008 panic("uhci_device_ctrl_transfer: not a request"); 2009 #endif 2010 2011 err = uhci_device_request(xfer); 2012 if (err) 2013 return (err); 2014 2015 if (sc->sc_bus.use_polling) 2016 uhci_waitintr(sc, xfer); 2017 return (USBD_IN_PROGRESS); 2018 } 2019 2020 usbd_status 2021 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2022 { 2023 usbd_status err; 2024 2025 /* Insert last in queue. */ 2026 err = usb_insert_transfer(xfer); 2027 if (err) 2028 return (err); 2029 2030 /* 2031 * Pipe isn't running (otherwise err would be USBD_INPROG), 2032 * so start it first. 2033 */ 2034 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2035 } 2036 2037 usbd_status 2038 uhci_device_intr_start(usbd_xfer_handle xfer) 2039 { 2040 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2041 usbd_device_handle dev = upipe->pipe.device; 2042 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2043 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2044 uhci_soft_td_t *data, *dataend; 2045 uhci_soft_qh_t *sqh; 2046 usbd_status err; 2047 int i, s; 2048 2049 if (sc->sc_dying) 2050 return (USBD_IOERROR); 2051 2052 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2053 xfer, xfer->length, xfer->flags)); 2054 2055 #ifdef DIAGNOSTIC 2056 if (xfer->rqflags & URQ_REQUEST) 2057 panic("uhci_device_intr_transfer: a request"); 2058 #endif 2059 2060 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2061 &xfer->dmabuf, &data, &dataend); 2062 if (err) 2063 return (err); 2064 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2065 2066 #ifdef UHCI_DEBUG 2067 if (uhcidebug > 10) { 2068 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2069 uhci_dump_tds(data); 2070 uhci_dump_qh(upipe->u.intr.qhs[0]); 2071 } 2072 #endif 2073 2074 s = splusb(); 2075 /* Set up interrupt info. */ 2076 ii->xfer = xfer; 2077 ii->stdstart = data; 2078 ii->stdend = dataend; 2079 #ifdef DIAGNOSTIC 2080 if (!ii->isdone) { 2081 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2082 } 2083 ii->isdone = 0; 2084 #endif 2085 2086 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2087 upipe->u.intr.qhs[0])); 2088 for (i = 0; i < upipe->u.intr.npoll; i++) { 2089 sqh = upipe->u.intr.qhs[i]; 2090 sqh->elink = data; 2091 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2092 } 2093 uhci_add_intr_info(sc, ii); 2094 xfer->status = USBD_IN_PROGRESS; 2095 splx(s); 2096 2097 #ifdef UHCI_DEBUG 2098 if (uhcidebug > 10) { 2099 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2100 uhci_dump_tds(data); 2101 uhci_dump_qh(upipe->u.intr.qhs[0]); 2102 } 2103 #endif 2104 2105 return (USBD_IN_PROGRESS); 2106 } 2107 2108 /* Abort a device control request. */ 2109 void 2110 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2111 { 2112 DPRINTF(("uhci_device_ctrl_abort:\n")); 2113 uhci_abort_xfer(xfer, USBD_CANCELLED); 2114 } 2115 2116 /* Close a device control pipe. */ 2117 void 2118 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2119 { 2120 } 2121 2122 /* Abort a device interrupt request. */ 2123 void 2124 uhci_device_intr_abort(usbd_xfer_handle xfer) 2125 { 2126 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2127 if (xfer->pipe->intrxfer == xfer) { 2128 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2129 xfer->pipe->intrxfer = NULL; 2130 } 2131 uhci_abort_xfer(xfer, USBD_CANCELLED); 2132 } 2133 2134 /* Close a device interrupt pipe. */ 2135 void 2136 uhci_device_intr_close(usbd_pipe_handle pipe) 2137 { 2138 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2139 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2140 int i, npoll; 2141 int s; 2142 2143 /* Unlink descriptors from controller data structures. */ 2144 npoll = upipe->u.intr.npoll; 2145 s = splusb(); 2146 for (i = 0; i < npoll; i++) 2147 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2148 splx(s); 2149 2150 /* 2151 * We now have to wait for any activity on the physical 2152 * descriptors to stop. 2153 */ 2154 usb_delay_ms(&sc->sc_bus, 2); 2155 2156 for(i = 0; i < npoll; i++) 2157 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2158 free(upipe->u.intr.qhs, M_USBHC); 2159 2160 /* XXX free other resources */ 2161 } 2162 2163 usbd_status 2164 uhci_device_request(usbd_xfer_handle xfer) 2165 { 2166 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2167 usb_device_request_t *req = &xfer->request; 2168 usbd_device_handle dev = upipe->pipe.device; 2169 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2170 int addr = dev->address; 2171 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2172 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2173 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2174 uhci_soft_qh_t *sqh; 2175 int len; 2176 u_int32_t ls; 2177 usbd_status err; 2178 int isread; 2179 int s; 2180 2181 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2182 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2183 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2184 UGETW(req->wIndex), UGETW(req->wLength), 2185 addr, endpt)); 2186 2187 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2188 isread = req->bmRequestType & UT_READ; 2189 len = UGETW(req->wLength); 2190 2191 setup = upipe->u.ctl.setup; 2192 stat = upipe->u.ctl.stat; 2193 sqh = upipe->u.ctl.sqh; 2194 2195 /* Set up data transaction */ 2196 if (len != 0) { 2197 upipe->nexttoggle = 1; 2198 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2199 &xfer->dmabuf, &data, &dataend); 2200 if (err) 2201 return (err); 2202 next = data; 2203 dataend->link.std = stat; 2204 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2205 } else { 2206 next = stat; 2207 } 2208 upipe->u.ctl.length = len; 2209 2210 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2211 2212 setup->link.std = next; 2213 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2214 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2215 UHCI_TD_ACTIVE); 2216 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2217 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2218 2219 stat->link.std = NULL; 2220 stat->td.td_link = htole32(UHCI_PTR_T); 2221 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2222 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2223 stat->td.td_token = 2224 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2225 UHCI_TD_IN (0, endpt, addr, 1)); 2226 stat->td.td_buffer = htole32(0); 2227 2228 #ifdef UHCI_DEBUG 2229 if (uhcidebug > 10) { 2230 DPRINTF(("uhci_device_request: before transfer\n")); 2231 uhci_dump_tds(setup); 2232 } 2233 #endif 2234 2235 /* Set up interrupt info. */ 2236 ii->xfer = xfer; 2237 ii->stdstart = setup; 2238 ii->stdend = stat; 2239 #ifdef DIAGNOSTIC 2240 if (!ii->isdone) { 2241 printf("uhci_device_request: not done, ii=%p\n", ii); 2242 } 2243 ii->isdone = 0; 2244 #endif 2245 2246 sqh->elink = setup; 2247 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2248 2249 s = splusb(); 2250 if (dev->speed == USB_SPEED_LOW) 2251 uhci_add_ls_ctrl(sc, sqh); 2252 else 2253 uhci_add_hs_ctrl(sc, sqh); 2254 uhci_add_intr_info(sc, ii); 2255 #ifdef UHCI_DEBUG 2256 if (uhcidebug > 12) { 2257 uhci_soft_td_t *std; 2258 uhci_soft_qh_t *xqh; 2259 uhci_soft_qh_t *sxqh; 2260 int maxqh = 0; 2261 uhci_physaddr_t link; 2262 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2263 for (std = sc->sc_vframes[0].htd, link = 0; 2264 (link & UHCI_PTR_QH) == 0; 2265 std = std->link.std) { 2266 link = le32toh(std->td.td_link); 2267 uhci_dump_td(std); 2268 } 2269 sxqh = (uhci_soft_qh_t *)std; 2270 uhci_dump_qh(sxqh); 2271 for (xqh = sxqh; 2272 xqh != NULL; 2273 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2274 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2275 uhci_dump_qh(xqh); 2276 } 2277 DPRINTF(("Enqueued QH:\n")); 2278 uhci_dump_qh(sqh); 2279 uhci_dump_tds(sqh->elink); 2280 } 2281 #endif 2282 if (xfer->timeout && !sc->sc_bus.use_polling) { 2283 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2284 uhci_timeout, ii); 2285 } 2286 xfer->status = USBD_IN_PROGRESS; 2287 splx(s); 2288 2289 return (USBD_NORMAL_COMPLETION); 2290 } 2291 2292 usbd_status 2293 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2294 { 2295 usbd_status err; 2296 2297 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2298 2299 /* Put it on our queue, */ 2300 err = usb_insert_transfer(xfer); 2301 2302 /* bail out on error, */ 2303 if (err && err != USBD_IN_PROGRESS) 2304 return (err); 2305 2306 /* XXX should check inuse here */ 2307 2308 /* insert into schedule, */ 2309 uhci_device_isoc_enter(xfer); 2310 2311 /* and start if the pipe wasn't running */ 2312 if (!err) 2313 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2314 2315 return (err); 2316 } 2317 2318 void 2319 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2320 { 2321 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2322 usbd_device_handle dev = upipe->pipe.device; 2323 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2324 struct iso *iso = &upipe->u.iso; 2325 uhci_soft_td_t *std; 2326 u_int32_t buf, len, status; 2327 int s, i, next, nframes; 2328 2329 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2330 "nframes=%d\n", 2331 iso->inuse, iso->next, xfer, xfer->nframes)); 2332 2333 if (sc->sc_dying) 2334 return; 2335 2336 if (xfer->status == USBD_IN_PROGRESS) { 2337 /* This request has already been entered into the frame list */ 2338 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2339 /* XXX */ 2340 } 2341 2342 #ifdef DIAGNOSTIC 2343 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2344 printf("uhci_device_isoc_enter: overflow!\n"); 2345 #endif 2346 2347 next = iso->next; 2348 if (next == -1) { 2349 /* Not in use yet, schedule it a few frames ahead. */ 2350 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2351 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2352 } 2353 2354 xfer->status = USBD_IN_PROGRESS; 2355 UXFER(xfer)->curframe = next; 2356 2357 buf = DMAADDR(&xfer->dmabuf, 0); 2358 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2359 UHCI_TD_ACTIVE | 2360 UHCI_TD_IOS); 2361 nframes = xfer->nframes; 2362 s = splusb(); 2363 for (i = 0; i < nframes; i++) { 2364 std = iso->stds[next]; 2365 if (++next >= UHCI_VFRAMELIST_COUNT) 2366 next = 0; 2367 len = xfer->frlengths[i]; 2368 std->td.td_buffer = htole32(buf); 2369 if (i == nframes - 1) 2370 status |= UHCI_TD_IOC; 2371 std->td.td_status = htole32(status); 2372 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2373 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2374 #ifdef UHCI_DEBUG 2375 if (uhcidebug > 5) { 2376 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2377 uhci_dump_td(std); 2378 } 2379 #endif 2380 buf += len; 2381 } 2382 iso->next = next; 2383 iso->inuse += xfer->nframes; 2384 2385 splx(s); 2386 } 2387 2388 usbd_status 2389 uhci_device_isoc_start(usbd_xfer_handle xfer) 2390 { 2391 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2392 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2393 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2394 uhci_soft_td_t *end; 2395 int s, i; 2396 2397 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2398 2399 if (sc->sc_dying) 2400 return (USBD_IOERROR); 2401 2402 #ifdef DIAGNOSTIC 2403 if (xfer->status != USBD_IN_PROGRESS) 2404 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2405 #endif 2406 2407 /* Find the last TD */ 2408 i = UXFER(xfer)->curframe + xfer->nframes; 2409 if (i >= UHCI_VFRAMELIST_COUNT) 2410 i -= UHCI_VFRAMELIST_COUNT; 2411 end = upipe->u.iso.stds[i]; 2412 2413 #ifdef DIAGNOSTIC 2414 if (end == NULL) { 2415 printf("uhci_device_isoc_start: end == NULL\n"); 2416 return (USBD_INVAL); 2417 } 2418 #endif 2419 2420 s = splusb(); 2421 2422 /* Set up interrupt info. */ 2423 ii->xfer = xfer; 2424 ii->stdstart = end; 2425 ii->stdend = end; 2426 #ifdef DIAGNOSTIC 2427 if (!ii->isdone) 2428 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2429 ii->isdone = 0; 2430 #endif 2431 uhci_add_intr_info(sc, ii); 2432 2433 splx(s); 2434 2435 return (USBD_IN_PROGRESS); 2436 } 2437 2438 void 2439 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2440 { 2441 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2442 uhci_soft_td_t **stds = upipe->u.iso.stds; 2443 uhci_soft_td_t *std; 2444 int i, n, s, nframes, maxlen, len; 2445 2446 s = splusb(); 2447 2448 /* Transfer is already done. */ 2449 if (xfer->status != USBD_NOT_STARTED && 2450 xfer->status != USBD_IN_PROGRESS) { 2451 splx(s); 2452 return; 2453 } 2454 2455 /* Give xfer the requested abort code. */ 2456 xfer->status = USBD_CANCELLED; 2457 2458 /* make hardware ignore it, */ 2459 nframes = xfer->nframes; 2460 n = UXFER(xfer)->curframe; 2461 maxlen = 0; 2462 for (i = 0; i < nframes; i++) { 2463 std = stds[n]; 2464 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2465 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2466 if (len > maxlen) 2467 maxlen = len; 2468 if (++n >= UHCI_VFRAMELIST_COUNT) 2469 n = 0; 2470 } 2471 2472 /* and wait until we are sure the hardware has finished. */ 2473 delay(maxlen); 2474 2475 #ifdef DIAGNOSTIC 2476 UXFER(xfer)->iinfo.isdone = 1; 2477 #endif 2478 /* Run callback and remove from interrupt list. */ 2479 usb_transfer_complete(xfer); 2480 2481 splx(s); 2482 } 2483 2484 void 2485 uhci_device_isoc_close(usbd_pipe_handle pipe) 2486 { 2487 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2488 usbd_device_handle dev = upipe->pipe.device; 2489 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2490 uhci_soft_td_t *std, *vstd; 2491 struct iso *iso; 2492 int i, s; 2493 2494 /* 2495 * Make sure all TDs are marked as inactive. 2496 * Wait for completion. 2497 * Unschedule. 2498 * Deallocate. 2499 */ 2500 iso = &upipe->u.iso; 2501 2502 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2503 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2504 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2505 2506 s = splusb(); 2507 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2508 std = iso->stds[i]; 2509 for (vstd = sc->sc_vframes[i].htd; 2510 vstd != NULL && vstd->link.std != std; 2511 vstd = vstd->link.std) 2512 ; 2513 if (vstd == NULL) { 2514 /*panic*/ 2515 printf("uhci_device_isoc_close: %p not found\n", std); 2516 splx(s); 2517 return; 2518 } 2519 vstd->link = std->link; 2520 vstd->td.td_link = std->td.td_link; 2521 uhci_free_std(sc, std); 2522 } 2523 splx(s); 2524 2525 free(iso->stds, M_USBHC); 2526 } 2527 2528 usbd_status 2529 uhci_setup_isoc(usbd_pipe_handle pipe) 2530 { 2531 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2532 usbd_device_handle dev = upipe->pipe.device; 2533 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2534 int addr = upipe->pipe.device->address; 2535 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2536 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2537 uhci_soft_td_t *std, *vstd; 2538 u_int32_t token; 2539 struct iso *iso; 2540 int i, s; 2541 2542 iso = &upipe->u.iso; 2543 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2544 M_USBHC, M_WAITOK); 2545 2546 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2547 UHCI_TD_OUT(0, endpt, addr, 0); 2548 2549 /* Allocate the TDs and mark as inactive; */ 2550 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2551 std = uhci_alloc_std(sc); 2552 if (std == 0) 2553 goto bad; 2554 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2555 std->td.td_token = htole32(token); 2556 iso->stds[i] = std; 2557 } 2558 2559 /* Insert TDs into schedule. */ 2560 s = splusb(); 2561 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2562 std = iso->stds[i]; 2563 vstd = sc->sc_vframes[i].htd; 2564 std->link = vstd->link; 2565 std->td.td_link = vstd->td.td_link; 2566 vstd->link.std = std; 2567 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2568 } 2569 splx(s); 2570 2571 iso->next = -1; 2572 iso->inuse = 0; 2573 2574 return (USBD_NORMAL_COMPLETION); 2575 2576 bad: 2577 while (--i >= 0) 2578 uhci_free_std(sc, iso->stds[i]); 2579 free(iso->stds, M_USBHC); 2580 return (USBD_NOMEM); 2581 } 2582 2583 void 2584 uhci_device_isoc_done(usbd_xfer_handle xfer) 2585 { 2586 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2587 2588 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2589 2590 if (ii->xfer != xfer) 2591 /* Not on interrupt list, ignore it. */ 2592 return; 2593 2594 #ifdef DIAGNOSTIC 2595 if (xfer->busy_free != XFER_BUSY) { 2596 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2597 xfer, xfer->busy_free); 2598 return; 2599 } 2600 2601 if (ii->stdend == NULL) { 2602 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2603 #ifdef UHCI_DEBUG 2604 uhci_dump_ii(ii); 2605 #endif 2606 return; 2607 } 2608 #endif 2609 2610 /* Turn off the interrupt since it is active even if the TD is not. */ 2611 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2612 2613 uhci_del_intr_info(ii); /* remove from active list */ 2614 } 2615 2616 void 2617 uhci_device_intr_done(usbd_xfer_handle xfer) 2618 { 2619 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2620 uhci_softc_t *sc = ii->sc; 2621 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2622 uhci_soft_qh_t *sqh; 2623 int i, npoll; 2624 2625 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2626 2627 npoll = upipe->u.intr.npoll; 2628 for(i = 0; i < npoll; i++) { 2629 sqh = upipe->u.intr.qhs[i]; 2630 sqh->elink = NULL; 2631 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2632 } 2633 uhci_free_std_chain(sc, ii->stdstart, NULL); 2634 2635 /* XXX Wasteful. */ 2636 if (xfer->pipe->repeat) { 2637 uhci_soft_td_t *data, *dataend; 2638 2639 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2640 2641 /* This alloc cannot fail since we freed the chain above. */ 2642 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2643 &xfer->dmabuf, &data, &dataend); 2644 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2645 2646 #ifdef UHCI_DEBUG 2647 if (uhcidebug > 10) { 2648 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2649 uhci_dump_tds(data); 2650 uhci_dump_qh(upipe->u.intr.qhs[0]); 2651 } 2652 #endif 2653 2654 ii->stdstart = data; 2655 ii->stdend = dataend; 2656 #ifdef DIAGNOSTIC 2657 if (!ii->isdone) { 2658 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2659 } 2660 ii->isdone = 0; 2661 #endif 2662 for (i = 0; i < npoll; i++) { 2663 sqh = upipe->u.intr.qhs[i]; 2664 sqh->elink = data; 2665 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2666 } 2667 xfer->status = USBD_IN_PROGRESS; 2668 /* The ii is already on the examined list, just leave it. */ 2669 } else { 2670 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2671 if (uhci_active_intr_info(ii)) 2672 uhci_del_intr_info(ii); 2673 } 2674 } 2675 2676 /* Deallocate request data structures */ 2677 void 2678 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2679 { 2680 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2681 uhci_softc_t *sc = ii->sc; 2682 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2683 2684 #ifdef DIAGNOSTIC 2685 if (!(xfer->rqflags & URQ_REQUEST)) 2686 panic("uhci_ctrl_done: not a request"); 2687 #endif 2688 2689 if (!uhci_active_intr_info(ii)) 2690 return; 2691 2692 uhci_del_intr_info(ii); /* remove from active list */ 2693 2694 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2695 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2696 else 2697 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2698 2699 if (upipe->u.ctl.length != 0) 2700 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2701 2702 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2703 } 2704 2705 /* Deallocate request data structures */ 2706 void 2707 uhci_device_bulk_done(usbd_xfer_handle xfer) 2708 { 2709 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2710 uhci_softc_t *sc = ii->sc; 2711 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2712 2713 DPRINTFN(5,("uhci_device_ctrl_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2714 xfer, ii, sc, upipe)); 2715 2716 if (!uhci_active_intr_info(ii)) 2717 return; 2718 2719 uhci_del_intr_info(ii); /* remove from active list */ 2720 2721 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2722 2723 uhci_free_std_chain(sc, ii->stdstart, NULL); 2724 2725 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2726 } 2727 2728 /* Add interrupt QH, called with vflock. */ 2729 void 2730 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2731 { 2732 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2733 uhci_soft_qh_t *eqh; 2734 2735 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2736 2737 eqh = vf->eqh; 2738 sqh->hlink = eqh->hlink; 2739 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2740 eqh->hlink = sqh; 2741 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2742 vf->eqh = sqh; 2743 vf->bandwidth++; 2744 } 2745 2746 /* Remove interrupt QH. */ 2747 void 2748 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2749 { 2750 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2751 uhci_soft_qh_t *pqh; 2752 2753 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2754 2755 /* See comment in uhci_remove_ctrl() */ 2756 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2757 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2758 delay(UHCI_QH_REMOVE_DELAY); 2759 } 2760 2761 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2762 pqh->hlink = sqh->hlink; 2763 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2764 delay(UHCI_QH_REMOVE_DELAY); 2765 if (vf->eqh == sqh) 2766 vf->eqh = pqh; 2767 vf->bandwidth--; 2768 } 2769 2770 usbd_status 2771 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2772 { 2773 uhci_soft_qh_t *sqh; 2774 int i, npoll, s; 2775 u_int bestbw, bw, bestoffs, offs; 2776 2777 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2778 if (ival == 0) { 2779 printf("uhci_setintr: 0 interval\n"); 2780 return (USBD_INVAL); 2781 } 2782 2783 if (ival > UHCI_VFRAMELIST_COUNT) 2784 ival = UHCI_VFRAMELIST_COUNT; 2785 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2786 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2787 2788 upipe->u.intr.npoll = npoll; 2789 upipe->u.intr.qhs = 2790 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2791 2792 /* 2793 * Figure out which offset in the schedule that has most 2794 * bandwidth left over. 2795 */ 2796 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2797 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2798 for (bw = i = 0; i < npoll; i++) 2799 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2800 if (bw < bestbw) { 2801 bestbw = bw; 2802 bestoffs = offs; 2803 } 2804 } 2805 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2806 2807 for(i = 0; i < npoll; i++) { 2808 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2809 sqh->elink = NULL; 2810 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2811 sqh->pos = MOD(i * ival + bestoffs); 2812 } 2813 #undef MOD 2814 2815 s = splusb(); 2816 /* Enter QHs into the controller data structures. */ 2817 for(i = 0; i < npoll; i++) 2818 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2819 splx(s); 2820 2821 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2822 return (USBD_NORMAL_COMPLETION); 2823 } 2824 2825 /* Open a new pipe. */ 2826 usbd_status 2827 uhci_open(usbd_pipe_handle pipe) 2828 { 2829 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2830 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2831 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2832 usbd_status err; 2833 int ival; 2834 2835 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2836 pipe, pipe->device->address, 2837 ed->bEndpointAddress, sc->sc_addr)); 2838 2839 upipe->aborting = 0; 2840 upipe->nexttoggle = 0; 2841 2842 if (pipe->device->address == sc->sc_addr) { 2843 switch (ed->bEndpointAddress) { 2844 case USB_CONTROL_ENDPOINT: 2845 pipe->methods = &uhci_root_ctrl_methods; 2846 break; 2847 case UE_DIR_IN | UHCI_INTR_ENDPT: 2848 pipe->methods = &uhci_root_intr_methods; 2849 break; 2850 default: 2851 return (USBD_INVAL); 2852 } 2853 } else { 2854 switch (ed->bmAttributes & UE_XFERTYPE) { 2855 case UE_CONTROL: 2856 pipe->methods = &uhci_device_ctrl_methods; 2857 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2858 if (upipe->u.ctl.sqh == NULL) 2859 goto bad; 2860 upipe->u.ctl.setup = uhci_alloc_std(sc); 2861 if (upipe->u.ctl.setup == NULL) { 2862 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2863 goto bad; 2864 } 2865 upipe->u.ctl.stat = uhci_alloc_std(sc); 2866 if (upipe->u.ctl.stat == NULL) { 2867 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2868 uhci_free_std(sc, upipe->u.ctl.setup); 2869 goto bad; 2870 } 2871 err = usb_allocmem(&sc->sc_bus, 2872 sizeof(usb_device_request_t), 2873 0, &upipe->u.ctl.reqdma); 2874 if (err) { 2875 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2876 uhci_free_std(sc, upipe->u.ctl.setup); 2877 uhci_free_std(sc, upipe->u.ctl.stat); 2878 goto bad; 2879 } 2880 break; 2881 case UE_INTERRUPT: 2882 pipe->methods = &uhci_device_intr_methods; 2883 ival = pipe->interval; 2884 if (ival == USBD_DEFAULT_INTERVAL) 2885 ival = ed->bInterval; 2886 return (uhci_device_setintr(sc, upipe, ival)); 2887 case UE_ISOCHRONOUS: 2888 pipe->methods = &uhci_device_isoc_methods; 2889 return (uhci_setup_isoc(pipe)); 2890 case UE_BULK: 2891 pipe->methods = &uhci_device_bulk_methods; 2892 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2893 if (upipe->u.bulk.sqh == NULL) 2894 goto bad; 2895 break; 2896 } 2897 } 2898 return (USBD_NORMAL_COMPLETION); 2899 2900 bad: 2901 return (USBD_NOMEM); 2902 } 2903 2904 /* 2905 * Data structures and routines to emulate the root hub. 2906 */ 2907 usb_device_descriptor_t uhci_devd = { 2908 USB_DEVICE_DESCRIPTOR_SIZE, 2909 UDESC_DEVICE, /* type */ 2910 {0x00, 0x01}, /* USB version */ 2911 UDCLASS_HUB, /* class */ 2912 UDSUBCLASS_HUB, /* subclass */ 2913 UDPROTO_FSHUB, /* protocol */ 2914 64, /* max packet */ 2915 {0},{0},{0x00,0x01}, /* device id */ 2916 1,2,0, /* string indicies */ 2917 1 /* # of configurations */ 2918 }; 2919 2920 usb_config_descriptor_t uhci_confd = { 2921 USB_CONFIG_DESCRIPTOR_SIZE, 2922 UDESC_CONFIG, 2923 {USB_CONFIG_DESCRIPTOR_SIZE + 2924 USB_INTERFACE_DESCRIPTOR_SIZE + 2925 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2926 1, 2927 1, 2928 0, 2929 UC_SELF_POWERED, 2930 0 /* max power */ 2931 }; 2932 2933 usb_interface_descriptor_t uhci_ifcd = { 2934 USB_INTERFACE_DESCRIPTOR_SIZE, 2935 UDESC_INTERFACE, 2936 0, 2937 0, 2938 1, 2939 UICLASS_HUB, 2940 UISUBCLASS_HUB, 2941 UIPROTO_FSHUB, 2942 0 2943 }; 2944 2945 usb_endpoint_descriptor_t uhci_endpd = { 2946 USB_ENDPOINT_DESCRIPTOR_SIZE, 2947 UDESC_ENDPOINT, 2948 UE_DIR_IN | UHCI_INTR_ENDPT, 2949 UE_INTERRUPT, 2950 {8}, 2951 255 2952 }; 2953 2954 usb_hub_descriptor_t uhci_hubd_piix = { 2955 USB_HUB_DESCRIPTOR_SIZE, 2956 UDESC_HUB, 2957 2, 2958 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2959 50, /* power on to power good */ 2960 0, 2961 { 0x00 }, /* both ports are removable */ 2962 }; 2963 2964 int 2965 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2966 { 2967 int i; 2968 2969 if (l == 0) 2970 return (0); 2971 p->bLength = 2 * strlen(s) + 2; 2972 if (l == 1) 2973 return (1); 2974 p->bDescriptorType = UDESC_STRING; 2975 l -= 2; 2976 for (i = 0; s[i] && l > 1; i++, l -= 2) 2977 USETW2(p->bString[i], 0, s[i]); 2978 return (2*i+2); 2979 } 2980 2981 /* 2982 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2983 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2984 * should not be used by the USB subsystem. As we cannot issue a 2985 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2986 * will be enabled as part of the reset. 2987 * 2988 * On the VT83C572, the port cannot be successfully enabled until the 2989 * outstanding "port enable change" and "connection status change" 2990 * events have been reset. 2991 */ 2992 Static usbd_status 2993 uhci_portreset(uhci_softc_t *sc, int index) 2994 { 2995 int lim, port, x; 2996 2997 if (index == 1) 2998 port = UHCI_PORTSC1; 2999 else if (index == 2) 3000 port = UHCI_PORTSC2; 3001 else 3002 return (USBD_IOERROR); 3003 3004 x = URWMASK(UREAD2(sc, port)); 3005 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3006 3007 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3008 3009 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3010 index, UREAD2(sc, port))); 3011 3012 x = URWMASK(UREAD2(sc, port)); 3013 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3014 3015 delay(100); 3016 3017 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3018 index, UREAD2(sc, port))); 3019 3020 x = URWMASK(UREAD2(sc, port)); 3021 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3022 3023 for (lim = 10; --lim > 0;) { 3024 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3025 3026 x = UREAD2(sc, port); 3027 3028 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3029 index, lim, x)); 3030 3031 if (!(x & UHCI_PORTSC_CCS)) { 3032 /* 3033 * No device is connected (or was disconnected 3034 * during reset). Consider the port reset. 3035 * The delay must be long enough to ensure on 3036 * the initial iteration that the device 3037 * connection will have been registered. 50ms 3038 * appears to be sufficient, but 20ms is not. 3039 */ 3040 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3041 index, lim)); 3042 break; 3043 } 3044 3045 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3046 /* 3047 * Port enabled changed and/or connection 3048 * status changed were set. Reset either or 3049 * both raised flags (by writing a 1 to that 3050 * bit), and wait again for state to settle. 3051 */ 3052 UWRITE2(sc, port, URWMASK(x) | 3053 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3054 continue; 3055 } 3056 3057 if (x & UHCI_PORTSC_PE) 3058 /* Port is enabled */ 3059 break; 3060 3061 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3062 } 3063 3064 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3065 index, UREAD2(sc, port))); 3066 3067 if (lim <= 0) { 3068 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3069 return (USBD_TIMEOUT); 3070 } 3071 3072 sc->sc_isreset = 1; 3073 return (USBD_NORMAL_COMPLETION); 3074 } 3075 3076 /* 3077 * Simulate a hardware hub by handling all the necessary requests. 3078 */ 3079 usbd_status 3080 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3081 { 3082 usbd_status err; 3083 3084 /* Insert last in queue. */ 3085 err = usb_insert_transfer(xfer); 3086 if (err) 3087 return (err); 3088 3089 /* 3090 * Pipe isn't running (otherwise err would be USBD_INPROG), 3091 * so start it first. 3092 */ 3093 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3094 } 3095 3096 usbd_status 3097 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3098 { 3099 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3100 usb_device_request_t *req; 3101 void *buf = NULL; 3102 int port, x; 3103 int s, len, value, index, status, change, l, totlen = 0; 3104 usb_port_status_t ps; 3105 usbd_status err; 3106 3107 if (sc->sc_dying) 3108 return (USBD_IOERROR); 3109 3110 #ifdef DIAGNOSTIC 3111 if (!(xfer->rqflags & URQ_REQUEST)) 3112 panic("uhci_root_ctrl_transfer: not a request"); 3113 #endif 3114 req = &xfer->request; 3115 3116 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3117 req->bmRequestType, req->bRequest)); 3118 3119 len = UGETW(req->wLength); 3120 value = UGETW(req->wValue); 3121 index = UGETW(req->wIndex); 3122 3123 if (len != 0) 3124 buf = KERNADDR(&xfer->dmabuf, 0); 3125 3126 #define C(x,y) ((x) | ((y) << 8)) 3127 switch(C(req->bRequest, req->bmRequestType)) { 3128 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3129 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3130 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3131 /* 3132 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3133 * for the integrated root hub. 3134 */ 3135 break; 3136 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3137 if (len > 0) { 3138 *(u_int8_t *)buf = sc->sc_conf; 3139 totlen = 1; 3140 } 3141 break; 3142 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3143 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3144 switch(value >> 8) { 3145 case UDESC_DEVICE: 3146 if ((value & 0xff) != 0) { 3147 err = USBD_IOERROR; 3148 goto ret; 3149 } 3150 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3151 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3152 memcpy(buf, &uhci_devd, l); 3153 break; 3154 case UDESC_CONFIG: 3155 if ((value & 0xff) != 0) { 3156 err = USBD_IOERROR; 3157 goto ret; 3158 } 3159 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3160 memcpy(buf, &uhci_confd, l); 3161 buf = (char *)buf + l; 3162 len -= l; 3163 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3164 totlen += l; 3165 memcpy(buf, &uhci_ifcd, l); 3166 buf = (char *)buf + l; 3167 len -= l; 3168 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3169 totlen += l; 3170 memcpy(buf, &uhci_endpd, l); 3171 break; 3172 case UDESC_STRING: 3173 if (len == 0) 3174 break; 3175 *(u_int8_t *)buf = 0; 3176 totlen = 1; 3177 switch (value & 0xff) { 3178 case 1: /* Vendor */ 3179 totlen = uhci_str(buf, len, sc->sc_vendor); 3180 break; 3181 case 2: /* Product */ 3182 totlen = uhci_str(buf, len, "UHCI root hub"); 3183 break; 3184 } 3185 break; 3186 default: 3187 err = USBD_IOERROR; 3188 goto ret; 3189 } 3190 break; 3191 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3192 if (len > 0) { 3193 *(u_int8_t *)buf = 0; 3194 totlen = 1; 3195 } 3196 break; 3197 case C(UR_GET_STATUS, UT_READ_DEVICE): 3198 if (len > 1) { 3199 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3200 totlen = 2; 3201 } 3202 break; 3203 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3204 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3205 if (len > 1) { 3206 USETW(((usb_status_t *)buf)->wStatus, 0); 3207 totlen = 2; 3208 } 3209 break; 3210 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3211 if (value >= USB_MAX_DEVICES) { 3212 err = USBD_IOERROR; 3213 goto ret; 3214 } 3215 sc->sc_addr = value; 3216 break; 3217 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3218 if (value != 0 && value != 1) { 3219 err = USBD_IOERROR; 3220 goto ret; 3221 } 3222 sc->sc_conf = value; 3223 break; 3224 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3225 break; 3226 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3227 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3228 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3229 err = USBD_IOERROR; 3230 goto ret; 3231 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3232 break; 3233 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3234 break; 3235 /* Hub requests */ 3236 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3237 break; 3238 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3239 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3240 "port=%d feature=%d\n", 3241 index, value)); 3242 if (index == 1) 3243 port = UHCI_PORTSC1; 3244 else if (index == 2) 3245 port = UHCI_PORTSC2; 3246 else { 3247 err = USBD_IOERROR; 3248 goto ret; 3249 } 3250 switch(value) { 3251 case UHF_PORT_ENABLE: 3252 x = URWMASK(UREAD2(sc, port)); 3253 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3254 break; 3255 case UHF_PORT_SUSPEND: 3256 x = URWMASK(UREAD2(sc, port)); 3257 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3258 break; 3259 case UHF_PORT_RESET: 3260 x = URWMASK(UREAD2(sc, port)); 3261 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3262 break; 3263 case UHF_C_PORT_CONNECTION: 3264 x = URWMASK(UREAD2(sc, port)); 3265 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3266 break; 3267 case UHF_C_PORT_ENABLE: 3268 x = URWMASK(UREAD2(sc, port)); 3269 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3270 break; 3271 case UHF_C_PORT_OVER_CURRENT: 3272 x = URWMASK(UREAD2(sc, port)); 3273 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3274 break; 3275 case UHF_C_PORT_RESET: 3276 sc->sc_isreset = 0; 3277 err = USBD_NORMAL_COMPLETION; 3278 goto ret; 3279 case UHF_PORT_CONNECTION: 3280 case UHF_PORT_OVER_CURRENT: 3281 case UHF_PORT_POWER: 3282 case UHF_PORT_LOW_SPEED: 3283 case UHF_C_PORT_SUSPEND: 3284 default: 3285 err = USBD_IOERROR; 3286 goto ret; 3287 } 3288 break; 3289 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3290 if (index == 1) 3291 port = UHCI_PORTSC1; 3292 else if (index == 2) 3293 port = UHCI_PORTSC2; 3294 else { 3295 err = USBD_IOERROR; 3296 goto ret; 3297 } 3298 if (len > 0) { 3299 *(u_int8_t *)buf = 3300 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3301 UHCI_PORTSC_LS_SHIFT; 3302 totlen = 1; 3303 } 3304 break; 3305 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3306 if (value != 0) { 3307 err = USBD_IOERROR; 3308 goto ret; 3309 } 3310 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3311 totlen = l; 3312 memcpy(buf, &uhci_hubd_piix, l); 3313 break; 3314 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3315 if (len != 4) { 3316 err = USBD_IOERROR; 3317 goto ret; 3318 } 3319 memset(buf, 0, len); 3320 totlen = len; 3321 break; 3322 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3323 if (index == 1) 3324 port = UHCI_PORTSC1; 3325 else if (index == 2) 3326 port = UHCI_PORTSC2; 3327 else { 3328 err = USBD_IOERROR; 3329 goto ret; 3330 } 3331 if (len != 4) { 3332 err = USBD_IOERROR; 3333 goto ret; 3334 } 3335 x = UREAD2(sc, port); 3336 status = change = 0; 3337 if (x & UHCI_PORTSC_CCS) 3338 status |= UPS_CURRENT_CONNECT_STATUS; 3339 if (x & UHCI_PORTSC_CSC) 3340 change |= UPS_C_CONNECT_STATUS; 3341 if (x & UHCI_PORTSC_PE) 3342 status |= UPS_PORT_ENABLED; 3343 if (x & UHCI_PORTSC_POEDC) 3344 change |= UPS_C_PORT_ENABLED; 3345 if (x & UHCI_PORTSC_OCI) 3346 status |= UPS_OVERCURRENT_INDICATOR; 3347 if (x & UHCI_PORTSC_OCIC) 3348 change |= UPS_C_OVERCURRENT_INDICATOR; 3349 if (x & UHCI_PORTSC_SUSP) 3350 status |= UPS_SUSPEND; 3351 if (x & UHCI_PORTSC_LSDA) 3352 status |= UPS_LOW_SPEED; 3353 status |= UPS_PORT_POWER; 3354 if (sc->sc_isreset) 3355 change |= UPS_C_PORT_RESET; 3356 USETW(ps.wPortStatus, status); 3357 USETW(ps.wPortChange, change); 3358 l = min(len, sizeof ps); 3359 memcpy(buf, &ps, l); 3360 totlen = l; 3361 break; 3362 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3363 err = USBD_IOERROR; 3364 goto ret; 3365 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3366 break; 3367 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3368 if (index == 1) 3369 port = UHCI_PORTSC1; 3370 else if (index == 2) 3371 port = UHCI_PORTSC2; 3372 else { 3373 err = USBD_IOERROR; 3374 goto ret; 3375 } 3376 switch(value) { 3377 case UHF_PORT_ENABLE: 3378 x = URWMASK(UREAD2(sc, port)); 3379 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3380 break; 3381 case UHF_PORT_SUSPEND: 3382 x = URWMASK(UREAD2(sc, port)); 3383 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3384 break; 3385 case UHF_PORT_RESET: 3386 err = uhci_portreset(sc, index); 3387 goto ret; 3388 case UHF_PORT_POWER: 3389 /* Pretend we turned on power */ 3390 err = USBD_NORMAL_COMPLETION; 3391 goto ret; 3392 case UHF_C_PORT_CONNECTION: 3393 case UHF_C_PORT_ENABLE: 3394 case UHF_C_PORT_OVER_CURRENT: 3395 case UHF_PORT_CONNECTION: 3396 case UHF_PORT_OVER_CURRENT: 3397 case UHF_PORT_LOW_SPEED: 3398 case UHF_C_PORT_SUSPEND: 3399 case UHF_C_PORT_RESET: 3400 default: 3401 err = USBD_IOERROR; 3402 goto ret; 3403 } 3404 break; 3405 default: 3406 err = USBD_IOERROR; 3407 goto ret; 3408 } 3409 xfer->actlen = totlen; 3410 err = USBD_NORMAL_COMPLETION; 3411 ret: 3412 xfer->status = err; 3413 s = splusb(); 3414 usb_transfer_complete(xfer); 3415 splx(s); 3416 return (USBD_IN_PROGRESS); 3417 } 3418 3419 /* Abort a root control request. */ 3420 void 3421 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3422 { 3423 /* Nothing to do, all transfers are synchronous. */ 3424 } 3425 3426 /* Close the root pipe. */ 3427 void 3428 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3429 { 3430 DPRINTF(("uhci_root_ctrl_close\n")); 3431 } 3432 3433 /* Abort a root interrupt request. */ 3434 void 3435 uhci_root_intr_abort(usbd_xfer_handle xfer) 3436 { 3437 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3438 3439 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3440 sc->sc_intr_xfer = NULL; 3441 3442 if (xfer->pipe->intrxfer == xfer) { 3443 DPRINTF(("uhci_root_intr_abort: remove\n")); 3444 xfer->pipe->intrxfer = 0; 3445 } 3446 xfer->status = USBD_CANCELLED; 3447 #ifdef DIAGNOSTIC 3448 UXFER(xfer)->iinfo.isdone = 1; 3449 #endif 3450 usb_transfer_complete(xfer); 3451 } 3452 3453 usbd_status 3454 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3455 { 3456 usbd_status err; 3457 3458 /* Insert last in queue. */ 3459 err = usb_insert_transfer(xfer); 3460 if (err) 3461 return (err); 3462 3463 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3464 * start first 3465 */ 3466 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3467 } 3468 3469 /* Start a transfer on the root interrupt pipe */ 3470 usbd_status 3471 uhci_root_intr_start(usbd_xfer_handle xfer) 3472 { 3473 usbd_pipe_handle pipe = xfer->pipe; 3474 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3475 3476 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3477 xfer, xfer->length, xfer->flags)); 3478 3479 if (sc->sc_dying) 3480 return (USBD_IOERROR); 3481 3482 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3483 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3484 sc->sc_intr_xfer = xfer; 3485 return (USBD_IN_PROGRESS); 3486 } 3487 3488 /* Close the root interrupt pipe. */ 3489 void 3490 uhci_root_intr_close(usbd_pipe_handle pipe) 3491 { 3492 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3493 3494 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3495 sc->sc_intr_xfer = NULL; 3496 DPRINTF(("uhci_root_intr_close\n")); 3497 } 3498
Indexes created Sun Sep 21 20:09:37 GMT 2025