1 /* $NetBSD: uhci.c,v 1.167 2003/01/01 16:25:59 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/data/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.167 2003/01/01 16:25:59 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 LIST_REMOVE((ii), list) 369 370 Static __inline__ uhci_soft_qh_t * 371 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 372 { 373 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 374 375 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 376 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 377 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 378 printf("uhci_find_prev_qh: QH not found\n"); 379 return (NULL); 380 } 381 #endif 382 } 383 return (pqh); 384 } 385 386 void 387 uhci_globalreset(uhci_softc_t *sc) 388 { 389 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 390 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 391 UHCICMD(sc, 0); /* do nothing */ 392 } 393 394 usbd_status 395 uhci_init(uhci_softc_t *sc) 396 { 397 usbd_status err; 398 int i, j; 399 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 400 uhci_soft_td_t *std; 401 402 DPRINTFN(1,("uhci_init: start\n")); 403 404 #ifdef UHCI_DEBUG 405 thesc = sc; 406 407 if (uhcidebug > 2) 408 uhci_dumpregs(sc); 409 #endif 410 411 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 412 uhci_globalreset(sc); /* reset the controller */ 413 uhci_reset(sc); 414 415 /* Allocate and initialize real frame array. */ 416 err = usb_allocmem(&sc->sc_bus, 417 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 418 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 419 if (err) 420 return (err); 421 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 422 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 423 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 424 425 /* 426 * Allocate a TD, inactive, that hangs from the last QH. 427 * This is to avoid a bug in the PIIX that makes it run berserk 428 * otherwise. 429 */ 430 std = uhci_alloc_std(sc); 431 if (std == NULL) 432 return (USBD_NOMEM); 433 std->link.std = NULL; 434 std->td.td_link = htole32(UHCI_PTR_T); 435 std->td.td_status = htole32(0); /* inactive */ 436 std->td.td_token = htole32(0); 437 std->td.td_buffer = htole32(0); 438 439 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 440 lsqh = uhci_alloc_sqh(sc); 441 if (lsqh == NULL) 442 return (USBD_NOMEM); 443 lsqh->hlink = NULL; 444 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 445 lsqh->elink = std; 446 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 447 sc->sc_last_qh = lsqh; 448 449 /* Allocate the dummy QH where bulk traffic will be queued. */ 450 bsqh = uhci_alloc_sqh(sc); 451 if (bsqh == NULL) 452 return (USBD_NOMEM); 453 bsqh->hlink = lsqh; 454 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 455 bsqh->elink = NULL; 456 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 457 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 458 459 /* Allocate dummy QH where high speed control traffic will be queued. */ 460 chsqh = uhci_alloc_sqh(sc); 461 if (chsqh == NULL) 462 return (USBD_NOMEM); 463 chsqh->hlink = bsqh; 464 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 465 chsqh->elink = NULL; 466 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 467 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 468 469 /* Allocate dummy QH where control traffic will be queued. */ 470 clsqh = uhci_alloc_sqh(sc); 471 if (clsqh == NULL) 472 return (USBD_NOMEM); 473 clsqh->hlink = bsqh; 474 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 475 clsqh->elink = NULL; 476 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 477 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 478 479 /* 480 * Make all (virtual) frame list pointers point to the interrupt 481 * queue heads and the interrupt queue heads at the control 482 * queue head and point the physical frame list to the virtual. 483 */ 484 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 485 std = uhci_alloc_std(sc); 486 sqh = uhci_alloc_sqh(sc); 487 if (std == NULL || sqh == NULL) 488 return (USBD_NOMEM); 489 std->link.sqh = sqh; 490 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 491 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 492 std->td.td_token = htole32(0); 493 std->td.td_buffer = htole32(0); 494 sqh->hlink = clsqh; 495 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 496 sqh->elink = NULL; 497 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 498 sc->sc_vframes[i].htd = std; 499 sc->sc_vframes[i].etd = std; 500 sc->sc_vframes[i].hqh = sqh; 501 sc->sc_vframes[i].eqh = sqh; 502 for (j = i; 503 j < UHCI_FRAMELIST_COUNT; 504 j += UHCI_VFRAMELIST_COUNT) 505 sc->sc_pframes[j] = htole32(std->physaddr); 506 } 507 508 LIST_INIT(&sc->sc_intrhead); 509 510 SIMPLEQ_INIT(&sc->sc_free_xfers); 511 512 usb_callout_init(sc->sc_poll_handle); 513 514 /* Set up the bus struct. */ 515 sc->sc_bus.methods = &uhci_bus_methods; 516 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 517 518 #if defined(__NetBSD__) || defined(__OpenBSD__) 519 sc->sc_suspend = PWR_RESUME; 520 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 521 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 522 #endif 523 524 DPRINTFN(1,("uhci_init: enabling\n")); 525 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 526 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 527 528 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 529 530 return (uhci_run(sc, 1)); /* and here we go... */ 531 } 532 533 #if defined(__NetBSD__) || defined(__OpenBSD__) 534 int 535 uhci_activate(device_ptr_t self, enum devact act) 536 { 537 struct uhci_softc *sc = (struct uhci_softc *)self; 538 int rv = 0; 539 540 switch (act) { 541 case DVACT_ACTIVATE: 542 return (EOPNOTSUPP); 543 break; 544 545 case DVACT_DEACTIVATE: 546 if (sc->sc_child != NULL) 547 rv = config_deactivate(sc->sc_child); 548 break; 549 } 550 return (rv); 551 } 552 553 int 554 uhci_detach(struct uhci_softc *sc, int flags) 555 { 556 usbd_xfer_handle xfer; 557 int rv = 0; 558 559 if (sc->sc_child != NULL) 560 rv = config_detach(sc->sc_child, flags); 561 562 if (rv != 0) 563 return (rv); 564 565 #if defined(__NetBSD__) || defined(__OpenBSD__) 566 powerhook_disestablish(sc->sc_powerhook); 567 shutdownhook_disestablish(sc->sc_shutdownhook); 568 #endif 569 570 /* Free all xfers associated with this HC. */ 571 for (;;) { 572 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 573 if (xfer == NULL) 574 break; 575 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 576 free(xfer, M_USB); 577 } 578 579 /* XXX free other data structures XXX */ 580 581 return (rv); 582 } 583 #endif 584 585 usbd_status 586 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 587 { 588 struct uhci_softc *sc = (struct uhci_softc *)bus; 589 u_int32_t n; 590 591 /* 592 * XXX 593 * Since we are allocating a buffer we can assume that we will 594 * need TDs for it. Since we don't want to allocate those from 595 * an interrupt context, we allocate them here and free them again. 596 * This is no guarantee that we'll get the TDs next time... 597 */ 598 n = size / 8; 599 if (n > 16) { 600 u_int32_t i; 601 uhci_soft_td_t **stds; 602 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 603 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 604 M_WAITOK|M_ZERO); 605 for(i=0; i < n; i++) 606 stds[i] = uhci_alloc_std(sc); 607 for(i=0; i < n; i++) 608 if (stds[i] != NULL) 609 uhci_free_std(sc, stds[i]); 610 free(stds, M_TEMP); 611 } 612 613 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 614 } 615 616 void 617 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 618 { 619 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 620 } 621 622 usbd_xfer_handle 623 uhci_allocx(struct usbd_bus *bus) 624 { 625 struct uhci_softc *sc = (struct uhci_softc *)bus; 626 usbd_xfer_handle xfer; 627 628 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 629 if (xfer != NULL) { 630 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 631 #ifdef DIAGNOSTIC 632 if (xfer->busy_free != XFER_FREE) { 633 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 634 xfer->busy_free); 635 } 636 #endif 637 } else { 638 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 639 } 640 if (xfer != NULL) { 641 memset(xfer, 0, sizeof (struct uhci_xfer)); 642 UXFER(xfer)->iinfo.sc = sc; 643 #ifdef DIAGNOSTIC 644 UXFER(xfer)->iinfo.isdone = 1; 645 xfer->busy_free = XFER_BUSY; 646 #endif 647 } 648 return (xfer); 649 } 650 651 void 652 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 653 { 654 struct uhci_softc *sc = (struct uhci_softc *)bus; 655 656 #ifdef DIAGNOSTIC 657 if (xfer->busy_free != XFER_BUSY) { 658 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 659 xfer->busy_free); 660 return; 661 } 662 xfer->busy_free = XFER_FREE; 663 if (!UXFER(xfer)->iinfo.isdone) { 664 printf("uhci_freex: !isdone\n"); 665 return; 666 } 667 #endif 668 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 669 } 670 671 /* 672 * Shut down the controller when the system is going down. 673 */ 674 void 675 uhci_shutdown(void *v) 676 { 677 uhci_softc_t *sc = v; 678 679 DPRINTF(("uhci_shutdown: stopping the HC\n")); 680 uhci_run(sc, 0); /* stop the controller */ 681 } 682 683 /* 684 * Handle suspend/resume. 685 * 686 * We need to switch to polling mode here, because this routine is 687 * called from an interrupt context. This is all right since we 688 * are almost suspended anyway. 689 */ 690 void 691 uhci_power(int why, void *v) 692 { 693 uhci_softc_t *sc = v; 694 int cmd; 695 int s; 696 697 s = splhardusb(); 698 cmd = UREAD2(sc, UHCI_CMD); 699 700 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 701 sc, why, sc->sc_suspend, cmd)); 702 703 switch (why) { 704 case PWR_SUSPEND: 705 case PWR_STANDBY: 706 #ifdef UHCI_DEBUG 707 if (uhcidebug > 2) 708 uhci_dumpregs(sc); 709 #endif 710 if (sc->sc_intr_xfer != NULL) 711 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 712 sc->sc_intr_xfer); 713 sc->sc_bus.use_polling++; 714 uhci_run(sc, 0); /* stop the controller */ 715 716 /* save some state if BIOS doesn't */ 717 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 718 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 719 720 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 721 722 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 723 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 724 sc->sc_suspend = why; 725 sc->sc_bus.use_polling--; 726 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 727 break; 728 case PWR_RESUME: 729 #ifdef DIAGNOSTIC 730 if (sc->sc_suspend == PWR_RESUME) 731 printf("uhci_power: weird, resume without suspend.\n"); 732 #endif 733 sc->sc_bus.use_polling++; 734 sc->sc_suspend = why; 735 if (cmd & UHCI_CMD_RS) 736 uhci_run(sc, 0); /* in case BIOS has started it */ 737 738 /* restore saved state */ 739 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 740 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 741 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 742 743 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 744 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 745 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 746 UHCICMD(sc, UHCI_CMD_MAXP); 747 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 748 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 749 uhci_run(sc, 1); /* and start traffic again */ 750 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 751 sc->sc_bus.use_polling--; 752 if (sc->sc_intr_xfer != NULL) 753 usb_callout(sc->sc_poll_handle, sc->sc_ival, 754 uhci_poll_hub, sc->sc_intr_xfer); 755 #ifdef UHCI_DEBUG 756 if (uhcidebug > 2) 757 uhci_dumpregs(sc); 758 #endif 759 break; 760 case PWR_SOFTSUSPEND: 761 case PWR_SOFTSTANDBY: 762 case PWR_SOFTRESUME: 763 break; 764 } 765 splx(s); 766 } 767 768 #ifdef UHCI_DEBUG 769 Static void 770 uhci_dumpregs(uhci_softc_t *sc) 771 { 772 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 773 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 774 USBDEVNAME(sc->sc_bus.bdev), 775 UREAD2(sc, UHCI_CMD), 776 UREAD2(sc, UHCI_STS), 777 UREAD2(sc, UHCI_INTR), 778 UREAD2(sc, UHCI_FRNUM), 779 UREAD4(sc, UHCI_FLBASEADDR), 780 UREAD1(sc, UHCI_SOF), 781 UREAD2(sc, UHCI_PORTSC1), 782 UREAD2(sc, UHCI_PORTSC2))); 783 } 784 785 void 786 uhci_dump_td(uhci_soft_td_t *p) 787 { 788 char sbuf[128], sbuf2[128]; 789 790 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 791 "token=0x%08lx buffer=0x%08lx\n", 792 p, (long)p->physaddr, 793 (long)le32toh(p->td.td_link), 794 (long)le32toh(p->td.td_status), 795 (long)le32toh(p->td.td_token), 796 (long)le32toh(p->td.td_buffer))); 797 798 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 799 sbuf, sizeof(sbuf)); 800 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 801 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 802 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 803 sbuf2, sizeof(sbuf2)); 804 805 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 806 "D=%d,maxlen=%d\n", sbuf, sbuf2, 807 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 808 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 809 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 810 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 811 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 812 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 813 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 814 } 815 816 void 817 uhci_dump_qh(uhci_soft_qh_t *sqh) 818 { 819 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 820 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 821 le32toh(sqh->qh.qh_elink))); 822 } 823 824 825 #if 1 826 void 827 uhci_dump(void) 828 { 829 uhci_dump_all(thesc); 830 } 831 #endif 832 833 void 834 uhci_dump_all(uhci_softc_t *sc) 835 { 836 uhci_dumpregs(sc); 837 printf("intrs=%d\n", sc->sc_bus.no_intrs); 838 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 839 uhci_dump_qh(sc->sc_lctl_start); 840 } 841 842 843 void 844 uhci_dump_qhs(uhci_soft_qh_t *sqh) 845 { 846 uhci_dump_qh(sqh); 847 848 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 849 * Traverses sideways first, then down. 850 * 851 * QH1 852 * QH2 853 * No QH 854 * TD2.1 855 * TD2.2 856 * TD1.1 857 * etc. 858 * 859 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 860 */ 861 862 863 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 864 uhci_dump_qhs(sqh->hlink); 865 else 866 DPRINTF(("No QH\n")); 867 868 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 869 uhci_dump_tds(sqh->elink); 870 else 871 DPRINTF(("No TD\n")); 872 } 873 874 void 875 uhci_dump_tds(uhci_soft_td_t *std) 876 { 877 uhci_soft_td_t *td; 878 879 for(td = std; td != NULL; td = td->link.std) { 880 uhci_dump_td(td); 881 882 /* Check whether the link pointer in this TD marks 883 * the link pointer as end of queue. This avoids 884 * printing the free list in case the queue/TD has 885 * already been moved there (seatbelt). 886 */ 887 if (le32toh(td->td.td_link) & UHCI_PTR_T || 888 le32toh(td->td.td_link) == 0) 889 break; 890 } 891 } 892 893 Static void 894 uhci_dump_ii(uhci_intr_info_t *ii) 895 { 896 usbd_pipe_handle pipe; 897 usb_endpoint_descriptor_t *ed; 898 usbd_device_handle dev; 899 900 #ifdef DIAGNOSTIC 901 #define DONE ii->isdone 902 #else 903 #define DONE 0 904 #endif 905 if (ii == NULL) { 906 printf("ii NULL\n"); 907 return; 908 } 909 if (ii->xfer == NULL) { 910 printf("ii %p: done=%d xfer=NULL\n", 911 ii, DONE); 912 return; 913 } 914 pipe = ii->xfer->pipe; 915 if (pipe == NULL) { 916 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 917 ii, DONE, ii->xfer); 918 return; 919 } 920 if (pipe->endpoint == NULL) { 921 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 922 ii, DONE, ii->xfer, pipe); 923 return; 924 } 925 if (pipe->device == NULL) { 926 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 927 ii, DONE, ii->xfer, pipe); 928 return; 929 } 930 ed = pipe->endpoint->edesc; 931 dev = pipe->device; 932 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", 933 ii, DONE, ii->xfer, dev, 934 UGETW(dev->ddesc.idVendor), 935 UGETW(dev->ddesc.idProduct), 936 dev->address, pipe, 937 ed->bEndpointAddress, ed->bmAttributes); 938 #undef DONE 939 } 940 941 void uhci_dump_iis(struct uhci_softc *sc); 942 void 943 uhci_dump_iis(struct uhci_softc *sc) 944 { 945 uhci_intr_info_t *ii; 946 947 printf("intr_info list:\n"); 948 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 949 uhci_dump_ii(ii); 950 } 951 952 void iidump(void); 953 void iidump(void) { uhci_dump_iis(thesc); } 954 955 #endif 956 957 /* 958 * This routine is executed periodically and simulates interrupts 959 * from the root controller interrupt pipe for port status change. 960 */ 961 void 962 uhci_poll_hub(void *addr) 963 { 964 usbd_xfer_handle xfer = addr; 965 usbd_pipe_handle pipe = xfer->pipe; 966 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 967 int s; 968 u_char *p; 969 970 DPRINTFN(20, ("uhci_poll_hub\n")); 971 972 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 973 974 p = KERNADDR(&xfer->dmabuf, 0); 975 p[0] = 0; 976 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 977 p[0] |= 1<<1; 978 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 979 p[0] |= 1<<2; 980 if (p[0] == 0) 981 /* No change, try again in a while */ 982 return; 983 984 xfer->actlen = 1; 985 xfer->status = USBD_NORMAL_COMPLETION; 986 s = splusb(); 987 xfer->device->bus->intr_context++; 988 usb_transfer_complete(xfer); 989 xfer->device->bus->intr_context--; 990 splx(s); 991 } 992 993 void 994 uhci_root_intr_done(usbd_xfer_handle xfer) 995 { 996 } 997 998 void 999 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1000 { 1001 } 1002 1003 /* 1004 * Let the last QH loop back to the high speed control transfer QH. 1005 * This is what intel calls "bandwidth reclamation" and improves 1006 * USB performance a lot for some devices. 1007 * If we are already looping, just count it. 1008 */ 1009 void 1010 uhci_add_loop(uhci_softc_t *sc) { 1011 #ifdef UHCI_DEBUG 1012 if (uhcinoloop) 1013 return; 1014 #endif 1015 if (++sc->sc_loops == 1) { 1016 DPRINTFN(5,("uhci_start_loop: add\n")); 1017 /* Note, we don't loop back the soft pointer. */ 1018 sc->sc_last_qh->qh.qh_hlink = 1019 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1020 } 1021 } 1022 1023 void 1024 uhci_rem_loop(uhci_softc_t *sc) { 1025 #ifdef UHCI_DEBUG 1026 if (uhcinoloop) 1027 return; 1028 #endif 1029 if (--sc->sc_loops == 0) { 1030 DPRINTFN(5,("uhci_end_loop: remove\n")); 1031 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1032 } 1033 } 1034 1035 /* Add high speed control QH, called at splusb(). */ 1036 void 1037 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1038 { 1039 uhci_soft_qh_t *eqh; 1040 1041 SPLUSBCHECK; 1042 1043 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1044 eqh = sc->sc_hctl_end; 1045 sqh->hlink = eqh->hlink; 1046 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1047 eqh->hlink = sqh; 1048 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1049 sc->sc_hctl_end = sqh; 1050 #ifdef UHCI_CTL_LOOP 1051 uhci_add_loop(sc); 1052 #endif 1053 } 1054 1055 /* Remove high speed control QH, called at splusb(). */ 1056 void 1057 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1058 { 1059 uhci_soft_qh_t *pqh; 1060 1061 SPLUSBCHECK; 1062 1063 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1064 #ifdef UHCI_CTL_LOOP 1065 uhci_rem_loop(sc); 1066 #endif 1067 /* 1068 * The T bit should be set in the elink of the QH so that the HC 1069 * doesn't follow the pointer. This condition may fail if the 1070 * the transferred packet was short so that the QH still points 1071 * at the last used TD. 1072 * In this case we set the T bit and wait a little for the HC 1073 * to stop looking at the TD. 1074 */ 1075 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1076 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1077 delay(UHCI_QH_REMOVE_DELAY); 1078 } 1079 1080 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1081 pqh->hlink = sqh->hlink; 1082 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1083 delay(UHCI_QH_REMOVE_DELAY); 1084 if (sc->sc_hctl_end == sqh) 1085 sc->sc_hctl_end = pqh; 1086 } 1087 1088 /* Add low speed control QH, called at splusb(). */ 1089 void 1090 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1091 { 1092 uhci_soft_qh_t *eqh; 1093 1094 SPLUSBCHECK; 1095 1096 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1097 eqh = sc->sc_lctl_end; 1098 sqh->hlink = eqh->hlink; 1099 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1100 eqh->hlink = sqh; 1101 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1102 sc->sc_lctl_end = sqh; 1103 } 1104 1105 /* Remove low speed control QH, called at splusb(). */ 1106 void 1107 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1108 { 1109 uhci_soft_qh_t *pqh; 1110 1111 SPLUSBCHECK; 1112 1113 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1114 /* See comment in uhci_remove_hs_ctrl() */ 1115 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1116 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1117 delay(UHCI_QH_REMOVE_DELAY); 1118 } 1119 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1120 pqh->hlink = sqh->hlink; 1121 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1122 delay(UHCI_QH_REMOVE_DELAY); 1123 if (sc->sc_lctl_end == sqh) 1124 sc->sc_lctl_end = pqh; 1125 } 1126 1127 /* Add bulk QH, called at splusb(). */ 1128 void 1129 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1130 { 1131 uhci_soft_qh_t *eqh; 1132 1133 SPLUSBCHECK; 1134 1135 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1136 eqh = sc->sc_bulk_end; 1137 sqh->hlink = eqh->hlink; 1138 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1139 eqh->hlink = sqh; 1140 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1141 sc->sc_bulk_end = sqh; 1142 uhci_add_loop(sc); 1143 } 1144 1145 /* Remove bulk QH, called at splusb(). */ 1146 void 1147 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1148 { 1149 uhci_soft_qh_t *pqh; 1150 1151 SPLUSBCHECK; 1152 1153 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1154 uhci_rem_loop(sc); 1155 /* See comment in uhci_remove_hs_ctrl() */ 1156 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1157 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1158 delay(UHCI_QH_REMOVE_DELAY); 1159 } 1160 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1161 pqh->hlink = sqh->hlink; 1162 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1163 delay(UHCI_QH_REMOVE_DELAY); 1164 if (sc->sc_bulk_end == sqh) 1165 sc->sc_bulk_end = pqh; 1166 } 1167 1168 Static int uhci_intr1(uhci_softc_t *); 1169 1170 int 1171 uhci_intr(void *arg) 1172 { 1173 uhci_softc_t *sc = arg; 1174 1175 if (sc->sc_dying) 1176 return (0); 1177 1178 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1179 if (sc->sc_bus.use_polling) { 1180 #ifdef DIAGNOSTIC 1181 printf("uhci_intr: ignored interrupt while polling\n"); 1182 #endif 1183 return (0); 1184 } 1185 return (uhci_intr1(sc)); 1186 } 1187 1188 int 1189 uhci_intr1(uhci_softc_t *sc) 1190 { 1191 int status; 1192 int ack; 1193 1194 #ifdef UHCI_DEBUG 1195 if (uhcidebug > 15) { 1196 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1197 uhci_dumpregs(sc); 1198 } 1199 #endif 1200 1201 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1202 if (status == 0) /* The interrupt was not for us. */ 1203 return (0); 1204 1205 if (sc->sc_suspend != PWR_RESUME) { 1206 printf("%s: interrupt while not operating ignored\n", 1207 USBDEVNAME(sc->sc_bus.bdev)); 1208 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1209 return (0); 1210 } 1211 1212 ack = 0; 1213 if (status & UHCI_STS_USBINT) 1214 ack |= UHCI_STS_USBINT; 1215 if (status & UHCI_STS_USBEI) 1216 ack |= UHCI_STS_USBEI; 1217 if (status & UHCI_STS_RD) { 1218 ack |= UHCI_STS_RD; 1219 #ifdef UHCI_DEBUG 1220 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1221 #endif 1222 } 1223 if (status & UHCI_STS_HSE) { 1224 ack |= UHCI_STS_HSE; 1225 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1226 } 1227 if (status & UHCI_STS_HCPE) { 1228 ack |= UHCI_STS_HCPE; 1229 printf("%s: host controller process error\n", 1230 USBDEVNAME(sc->sc_bus.bdev)); 1231 } 1232 if (status & UHCI_STS_HCH) { 1233 /* no acknowledge needed */ 1234 if (!sc->sc_dying) { 1235 printf("%s: host controller halted\n", 1236 USBDEVNAME(sc->sc_bus.bdev)); 1237 #ifdef UHCI_DEBUG 1238 uhci_dump_all(sc); 1239 #endif 1240 } 1241 sc->sc_dying = 1; 1242 } 1243 1244 if (!ack) 1245 return (0); /* nothing to acknowledge */ 1246 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1247 1248 sc->sc_bus.no_intrs++; 1249 usb_schedsoftintr(&sc->sc_bus); 1250 1251 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1252 1253 return (1); 1254 } 1255 1256 void 1257 uhci_softintr(void *v) 1258 { 1259 uhci_softc_t *sc = v; 1260 uhci_intr_info_t *ii; 1261 1262 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1263 sc->sc_bus.intr_context)); 1264 1265 sc->sc_bus.intr_context++; 1266 1267 /* 1268 * Interrupts on UHCI really suck. When the host controller 1269 * interrupts because a transfer is completed there is no 1270 * way of knowing which transfer it was. You can scan down 1271 * the TDs and QHs of the previous frame to limit the search, 1272 * but that assumes that the interrupt was not delayed by more 1273 * than 1 ms, which may not always be true (e.g. after debug 1274 * output on a slow console). 1275 * We scan all interrupt descriptors to see if any have 1276 * completed. 1277 */ 1278 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1279 uhci_check_intr(sc, ii); 1280 1281 #ifdef USB_USE_SOFTINTR 1282 if (sc->sc_softwake) { 1283 sc->sc_softwake = 0; 1284 wakeup(&sc->sc_softwake); 1285 } 1286 #endif /* USB_USE_SOFTINTR */ 1287 1288 sc->sc_bus.intr_context--; 1289 } 1290 1291 /* Check for an interrupt. */ 1292 void 1293 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1294 { 1295 uhci_soft_td_t *std, *lstd; 1296 u_int32_t status; 1297 1298 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1299 #ifdef DIAGNOSTIC 1300 if (ii == NULL) { 1301 printf("uhci_check_intr: no ii? %p\n", ii); 1302 return; 1303 } 1304 #endif 1305 if (ii->xfer->status == USBD_CANCELLED || 1306 ii->xfer->status == USBD_TIMEOUT) { 1307 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1308 return; 1309 } 1310 1311 if (ii->stdstart == NULL) 1312 return; 1313 lstd = ii->stdend; 1314 #ifdef DIAGNOSTIC 1315 if (lstd == NULL) { 1316 printf("uhci_check_intr: std==0\n"); 1317 return; 1318 } 1319 #endif 1320 /* 1321 * If the last TD is still active we need to check whether there 1322 * is a an error somewhere in the middle, or whether there was a 1323 * short packet (SPD and not ACTIVE). 1324 */ 1325 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1326 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1327 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1328 status = le32toh(std->td.td_status); 1329 /* If there's an active TD the xfer isn't done. */ 1330 if (status & UHCI_TD_ACTIVE) 1331 break; 1332 /* Any kind of error makes the xfer done. */ 1333 if (status & UHCI_TD_STALLED) 1334 goto done; 1335 /* We want short packets, and it is short: it's done */ 1336 if ((status & UHCI_TD_SPD) && 1337 UHCI_TD_GET_ACTLEN(status) < 1338 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1339 goto done; 1340 } 1341 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1342 ii, ii->stdstart)); 1343 return; 1344 } 1345 done: 1346 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1347 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1348 uhci_idone(ii); 1349 } 1350 1351 /* Called at splusb() */ 1352 void 1353 uhci_idone(uhci_intr_info_t *ii) 1354 { 1355 usbd_xfer_handle xfer = ii->xfer; 1356 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1357 uhci_soft_td_t *std; 1358 u_int32_t status = 0, nstatus; 1359 int actlen; 1360 1361 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1362 #ifdef DIAGNOSTIC 1363 { 1364 int s = splhigh(); 1365 if (ii->isdone) { 1366 splx(s); 1367 #ifdef UHCI_DEBUG 1368 printf("uhci_idone: ii is done!\n "); 1369 uhci_dump_ii(ii); 1370 #else 1371 printf("uhci_idone: ii=%p is done!\n", ii); 1372 #endif 1373 return; 1374 } 1375 ii->isdone = 1; 1376 splx(s); 1377 } 1378 #endif 1379 1380 if (xfer->nframes != 0) { 1381 /* Isoc transfer, do things differently. */ 1382 uhci_soft_td_t **stds = upipe->u.iso.stds; 1383 int i, n, nframes, len; 1384 1385 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1386 1387 nframes = xfer->nframes; 1388 actlen = 0; 1389 n = UXFER(xfer)->curframe; 1390 for (i = 0; i < nframes; i++) { 1391 std = stds[n]; 1392 #ifdef UHCI_DEBUG 1393 if (uhcidebug > 5) { 1394 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1395 uhci_dump_td(std); 1396 } 1397 #endif 1398 if (++n >= UHCI_VFRAMELIST_COUNT) 1399 n = 0; 1400 status = le32toh(std->td.td_status); 1401 len = UHCI_TD_GET_ACTLEN(status); 1402 xfer->frlengths[i] = len; 1403 actlen += len; 1404 } 1405 upipe->u.iso.inuse -= nframes; 1406 xfer->actlen = actlen; 1407 xfer->status = USBD_NORMAL_COMPLETION; 1408 goto end; 1409 } 1410 1411 #ifdef UHCI_DEBUG 1412 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1413 ii, xfer, upipe)); 1414 if (uhcidebug > 10) 1415 uhci_dump_tds(ii->stdstart); 1416 #endif 1417 1418 /* The transfer is done, compute actual length and status. */ 1419 actlen = 0; 1420 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1421 nstatus = le32toh(std->td.td_status); 1422 if (nstatus & UHCI_TD_ACTIVE) 1423 break; 1424 1425 status = nstatus; 1426 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1427 UHCI_TD_PID_SETUP) 1428 actlen += UHCI_TD_GET_ACTLEN(status); 1429 } 1430 /* If there are left over TDs we need to update the toggle. */ 1431 if (std != NULL) 1432 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1433 1434 status &= UHCI_TD_ERROR; 1435 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1436 actlen, status)); 1437 xfer->actlen = actlen; 1438 if (status != 0) { 1439 #ifdef UHCI_DEBUG 1440 char sbuf[128]; 1441 1442 bitmask_snprintf((u_int32_t)status, 1443 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1444 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1445 sbuf, sizeof(sbuf)); 1446 1447 DPRINTFN((status == UHCI_TD_STALLED)*10, 1448 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1449 "status 0x%s\n", 1450 xfer->pipe->device->address, 1451 xfer->pipe->endpoint->edesc->bEndpointAddress, 1452 sbuf)); 1453 #endif 1454 1455 if (status == UHCI_TD_STALLED) 1456 xfer->status = USBD_STALLED; 1457 else 1458 xfer->status = USBD_IOERROR; /* more info XXX */ 1459 } else { 1460 xfer->status = USBD_NORMAL_COMPLETION; 1461 } 1462 1463 end: 1464 usb_transfer_complete(xfer); 1465 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1466 } 1467 1468 /* 1469 * Called when a request does not complete. 1470 */ 1471 void 1472 uhci_timeout(void *addr) 1473 { 1474 uhci_intr_info_t *ii = addr; 1475 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1476 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1477 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1478 1479 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1480 1481 if (sc->sc_dying) { 1482 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1483 return; 1484 } 1485 1486 /* Execute the abort in a process context. */ 1487 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1488 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1489 } 1490 1491 void 1492 uhci_timeout_task(void *addr) 1493 { 1494 usbd_xfer_handle xfer = addr; 1495 int s; 1496 1497 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1498 1499 s = splusb(); 1500 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1501 splx(s); 1502 } 1503 1504 /* 1505 * Wait here until controller claims to have an interrupt. 1506 * Then call uhci_intr and return. Use timeout to avoid waiting 1507 * too long. 1508 * Only used during boot when interrupts are not enabled yet. 1509 */ 1510 void 1511 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1512 { 1513 int timo = xfer->timeout; 1514 uhci_intr_info_t *ii; 1515 1516 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1517 1518 xfer->status = USBD_IN_PROGRESS; 1519 for (; timo >= 0; timo--) { 1520 usb_delay_ms(&sc->sc_bus, 1); 1521 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1522 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1523 uhci_intr1(sc); 1524 if (xfer->status != USBD_IN_PROGRESS) 1525 return; 1526 } 1527 } 1528 1529 /* Timeout */ 1530 DPRINTF(("uhci_waitintr: timeout\n")); 1531 for (ii = LIST_FIRST(&sc->sc_intrhead); 1532 ii != NULL && ii->xfer != xfer; 1533 ii = LIST_NEXT(ii, list)) 1534 ; 1535 #ifdef DIAGNOSTIC 1536 if (ii == NULL) 1537 panic("uhci_waitintr: lost intr_info"); 1538 #endif 1539 uhci_idone(ii); 1540 } 1541 1542 void 1543 uhci_poll(struct usbd_bus *bus) 1544 { 1545 uhci_softc_t *sc = (uhci_softc_t *)bus; 1546 1547 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1548 uhci_intr1(sc); 1549 } 1550 1551 void 1552 uhci_reset(uhci_softc_t *sc) 1553 { 1554 int n; 1555 1556 UHCICMD(sc, UHCI_CMD_HCRESET); 1557 /* The reset bit goes low when the controller is done. */ 1558 for (n = 0; n < UHCI_RESET_TIMEOUT && 1559 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1560 usb_delay_ms(&sc->sc_bus, 1); 1561 if (n >= UHCI_RESET_TIMEOUT) 1562 printf("%s: controller did not reset\n", 1563 USBDEVNAME(sc->sc_bus.bdev)); 1564 } 1565 1566 usbd_status 1567 uhci_run(uhci_softc_t *sc, int run) 1568 { 1569 int s, n, running; 1570 u_int16_t cmd; 1571 1572 run = run != 0; 1573 s = splhardusb(); 1574 DPRINTF(("uhci_run: setting run=%d\n", run)); 1575 cmd = UREAD2(sc, UHCI_CMD); 1576 if (run) 1577 cmd |= UHCI_CMD_RS; 1578 else 1579 cmd &= ~UHCI_CMD_RS; 1580 UHCICMD(sc, cmd); 1581 for(n = 0; n < 10; n++) { 1582 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1583 /* return when we've entered the state we want */ 1584 if (run == running) { 1585 splx(s); 1586 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1587 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1588 return (USBD_NORMAL_COMPLETION); 1589 } 1590 usb_delay_ms(&sc->sc_bus, 1); 1591 } 1592 splx(s); 1593 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1594 run ? "start" : "stop"); 1595 return (USBD_IOERROR); 1596 } 1597 1598 /* 1599 * Memory management routines. 1600 * uhci_alloc_std allocates TDs 1601 * uhci_alloc_sqh allocates QHs 1602 * These two routines do their own free list management, 1603 * partly for speed, partly because allocating DMAable memory 1604 * has page size granularaity so much memory would be wasted if 1605 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1606 */ 1607 1608 uhci_soft_td_t * 1609 uhci_alloc_std(uhci_softc_t *sc) 1610 { 1611 uhci_soft_td_t *std; 1612 usbd_status err; 1613 int i, offs; 1614 usb_dma_t dma; 1615 1616 if (sc->sc_freetds == NULL) { 1617 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1618 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1619 UHCI_TD_ALIGN, &dma); 1620 if (err) 1621 return (0); 1622 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1623 offs = i * UHCI_STD_SIZE; 1624 std = KERNADDR(&dma, offs); 1625 std->physaddr = DMAADDR(&dma, offs); 1626 std->link.std = sc->sc_freetds; 1627 sc->sc_freetds = std; 1628 } 1629 } 1630 std = sc->sc_freetds; 1631 sc->sc_freetds = std->link.std; 1632 memset(&std->td, 0, sizeof(uhci_td_t)); 1633 return std; 1634 } 1635 1636 void 1637 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1638 { 1639 #ifdef DIAGNOSTIC 1640 #define TD_IS_FREE 0x12345678 1641 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1642 printf("uhci_free_std: freeing free TD %p\n", std); 1643 return; 1644 } 1645 std->td.td_token = htole32(TD_IS_FREE); 1646 #endif 1647 std->link.std = sc->sc_freetds; 1648 sc->sc_freetds = std; 1649 } 1650 1651 uhci_soft_qh_t * 1652 uhci_alloc_sqh(uhci_softc_t *sc) 1653 { 1654 uhci_soft_qh_t *sqh; 1655 usbd_status err; 1656 int i, offs; 1657 usb_dma_t dma; 1658 1659 if (sc->sc_freeqhs == NULL) { 1660 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1661 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1662 UHCI_QH_ALIGN, &dma); 1663 if (err) 1664 return (0); 1665 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1666 offs = i * UHCI_SQH_SIZE; 1667 sqh = KERNADDR(&dma, offs); 1668 sqh->physaddr = DMAADDR(&dma, offs); 1669 sqh->hlink = sc->sc_freeqhs; 1670 sc->sc_freeqhs = sqh; 1671 } 1672 } 1673 sqh = sc->sc_freeqhs; 1674 sc->sc_freeqhs = sqh->hlink; 1675 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1676 return (sqh); 1677 } 1678 1679 void 1680 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1681 { 1682 sqh->hlink = sc->sc_freeqhs; 1683 sc->sc_freeqhs = sqh; 1684 } 1685 1686 void 1687 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1688 uhci_soft_td_t *stdend) 1689 { 1690 uhci_soft_td_t *p; 1691 1692 for (; std != stdend; std = p) { 1693 p = std->link.std; 1694 uhci_free_std(sc, std); 1695 } 1696 } 1697 1698 usbd_status 1699 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1700 int rd, u_int16_t flags, usb_dma_t *dma, 1701 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1702 { 1703 uhci_soft_td_t *p, *lastp; 1704 uhci_physaddr_t lastlink; 1705 int i, ntd, l, tog, maxp; 1706 u_int32_t status; 1707 int addr = upipe->pipe.device->address; 1708 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1709 1710 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1711 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1712 upipe->pipe.device->speed, flags)); 1713 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1714 if (maxp == 0) { 1715 printf("uhci_alloc_std_chain: maxp=0\n"); 1716 return (USBD_INVAL); 1717 } 1718 ntd = (len + maxp - 1) / maxp; 1719 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1720 ntd++; 1721 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1722 if (ntd == 0) { 1723 *sp = *ep = 0; 1724 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1725 return (USBD_NORMAL_COMPLETION); 1726 } 1727 tog = upipe->nexttoggle; 1728 if (ntd % 2 == 0) 1729 tog ^= 1; 1730 upipe->nexttoggle = tog ^ 1; 1731 lastp = NULL; 1732 lastlink = UHCI_PTR_T; 1733 ntd--; 1734 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1735 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1736 status |= UHCI_TD_LS; 1737 if (flags & USBD_SHORT_XFER_OK) 1738 status |= UHCI_TD_SPD; 1739 for (i = ntd; i >= 0; i--) { 1740 p = uhci_alloc_std(sc); 1741 if (p == NULL) { 1742 uhci_free_std_chain(sc, lastp, NULL); 1743 return (USBD_NOMEM); 1744 } 1745 p->link.std = lastp; 1746 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1747 lastp = p; 1748 lastlink = p->physaddr; 1749 p->td.td_status = htole32(status); 1750 if (i == ntd) { 1751 /* last TD */ 1752 l = len % maxp; 1753 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1754 l = maxp; 1755 *ep = p; 1756 } else 1757 l = maxp; 1758 p->td.td_token = 1759 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1760 UHCI_TD_OUT(l, endpt, addr, tog)); 1761 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1762 tog ^= 1; 1763 } 1764 *sp = lastp; 1765 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1766 upipe->nexttoggle)); 1767 return (USBD_NORMAL_COMPLETION); 1768 } 1769 1770 void 1771 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1772 { 1773 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1774 upipe->nexttoggle = 0; 1775 } 1776 1777 void 1778 uhci_noop(usbd_pipe_handle pipe) 1779 { 1780 } 1781 1782 usbd_status 1783 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1784 { 1785 usbd_status err; 1786 1787 /* Insert last in queue. */ 1788 err = usb_insert_transfer(xfer); 1789 if (err) 1790 return (err); 1791 1792 /* 1793 * Pipe isn't running (otherwise err would be USBD_INPROG), 1794 * so start it first. 1795 */ 1796 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1797 } 1798 1799 usbd_status 1800 uhci_device_bulk_start(usbd_xfer_handle xfer) 1801 { 1802 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1803 usbd_device_handle dev = upipe->pipe.device; 1804 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1805 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1806 uhci_soft_td_t *data, *dataend; 1807 uhci_soft_qh_t *sqh; 1808 usbd_status err; 1809 int len, isread, endpt; 1810 int s; 1811 1812 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1813 xfer, xfer->length, xfer->flags)); 1814 1815 if (sc->sc_dying) 1816 return (USBD_IOERROR); 1817 1818 #ifdef DIAGNOSTIC 1819 if (xfer->rqflags & URQ_REQUEST) 1820 panic("uhci_device_bulk_transfer: a request"); 1821 #endif 1822 1823 len = xfer->length; 1824 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1825 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1826 sqh = upipe->u.bulk.sqh; 1827 1828 upipe->u.bulk.isread = isread; 1829 upipe->u.bulk.length = len; 1830 1831 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1832 &xfer->dmabuf, &data, &dataend); 1833 if (err) 1834 return (err); 1835 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1836 1837 #ifdef UHCI_DEBUG 1838 if (uhcidebug > 8) { 1839 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1840 uhci_dump_tds(data); 1841 } 1842 #endif 1843 1844 /* Set up interrupt info. */ 1845 ii->xfer = xfer; 1846 ii->stdstart = data; 1847 ii->stdend = dataend; 1848 #ifdef DIAGNOSTIC 1849 if (!ii->isdone) { 1850 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1851 } 1852 ii->isdone = 0; 1853 #endif 1854 1855 sqh->elink = data; 1856 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1857 1858 s = splusb(); 1859 uhci_add_bulk(sc, sqh); 1860 uhci_add_intr_info(sc, ii); 1861 1862 if (xfer->timeout && !sc->sc_bus.use_polling) { 1863 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1864 uhci_timeout, ii); 1865 } 1866 xfer->status = USBD_IN_PROGRESS; 1867 splx(s); 1868 1869 #ifdef UHCI_DEBUG 1870 if (uhcidebug > 10) { 1871 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1872 uhci_dump_tds(data); 1873 } 1874 #endif 1875 1876 if (sc->sc_bus.use_polling) 1877 uhci_waitintr(sc, xfer); 1878 1879 return (USBD_IN_PROGRESS); 1880 } 1881 1882 /* Abort a device bulk request. */ 1883 void 1884 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1885 { 1886 DPRINTF(("uhci_device_bulk_abort:\n")); 1887 uhci_abort_xfer(xfer, USBD_CANCELLED); 1888 } 1889 1890 /* 1891 * Abort a device request. 1892 * If this routine is called at splusb() it guarantees that the request 1893 * will be removed from the hardware scheduling and that the callback 1894 * for it will be called with USBD_CANCELLED status. 1895 * It's impossible to guarantee that the requested transfer will not 1896 * have happened since the hardware runs concurrently. 1897 * If the transaction has already happened we rely on the ordinary 1898 * interrupt processing to process it. 1899 */ 1900 void 1901 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1902 { 1903 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1904 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1905 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1906 uhci_soft_td_t *std; 1907 int s; 1908 1909 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1910 1911 if (sc->sc_dying) { 1912 /* If we're dying, just do the software part. */ 1913 s = splusb(); 1914 xfer->status = status; /* make software ignore it */ 1915 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1916 usb_transfer_complete(xfer); 1917 splx(s); 1918 } 1919 1920 if (xfer->device->bus->intr_context || !curproc) 1921 panic("uhci_abort_xfer: not in process context"); 1922 1923 /* 1924 * Step 1: Make interrupt routine and hardware ignore xfer. 1925 */ 1926 s = splusb(); 1927 xfer->status = status; /* make software ignore it */ 1928 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1929 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1930 for (std = ii->stdstart; std != NULL; std = std->link.std) 1931 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1932 splx(s); 1933 1934 /* 1935 * Step 2: Wait until we know hardware has finished any possible 1936 * use of the xfer. Also make sure the soft interrupt routine 1937 * has run. 1938 */ 1939 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1940 s = splusb(); 1941 #ifdef USB_USE_SOFTINTR 1942 sc->sc_softwake = 1; 1943 #endif /* USB_USE_SOFTINTR */ 1944 usb_schedsoftintr(&sc->sc_bus); 1945 #ifdef USB_USE_SOFTINTR 1946 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1947 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1948 #endif /* USB_USE_SOFTINTR */ 1949 splx(s); 1950 1951 /* 1952 * Step 3: Execute callback. 1953 */ 1954 xfer->hcpriv = ii; 1955 1956 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1957 s = splusb(); 1958 #ifdef DIAGNOSTIC 1959 ii->isdone = 1; 1960 #endif 1961 usb_transfer_complete(xfer); 1962 splx(s); 1963 } 1964 1965 /* Close a device bulk pipe. */ 1966 void 1967 uhci_device_bulk_close(usbd_pipe_handle pipe) 1968 { 1969 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1970 usbd_device_handle dev = upipe->pipe.device; 1971 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1972 1973 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1974 } 1975 1976 usbd_status 1977 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1978 { 1979 usbd_status err; 1980 1981 /* Insert last in queue. */ 1982 err = usb_insert_transfer(xfer); 1983 if (err) 1984 return (err); 1985 1986 /* 1987 * Pipe isn't running (otherwise err would be USBD_INPROG), 1988 * so start it first. 1989 */ 1990 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1991 } 1992 1993 usbd_status 1994 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1995 { 1996 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1997 usbd_status err; 1998 1999 if (sc->sc_dying) 2000 return (USBD_IOERROR); 2001 2002 #ifdef DIAGNOSTIC 2003 if (!(xfer->rqflags & URQ_REQUEST)) 2004 panic("uhci_device_ctrl_transfer: not a request"); 2005 #endif 2006 2007 err = uhci_device_request(xfer); 2008 if (err) 2009 return (err); 2010 2011 if (sc->sc_bus.use_polling) 2012 uhci_waitintr(sc, xfer); 2013 return (USBD_IN_PROGRESS); 2014 } 2015 2016 usbd_status 2017 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2018 { 2019 usbd_status err; 2020 2021 /* Insert last in queue. */ 2022 err = usb_insert_transfer(xfer); 2023 if (err) 2024 return (err); 2025 2026 /* 2027 * Pipe isn't running (otherwise err would be USBD_INPROG), 2028 * so start it first. 2029 */ 2030 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2031 } 2032 2033 usbd_status 2034 uhci_device_intr_start(usbd_xfer_handle xfer) 2035 { 2036 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2037 usbd_device_handle dev = upipe->pipe.device; 2038 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2039 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2040 uhci_soft_td_t *data, *dataend; 2041 uhci_soft_qh_t *sqh; 2042 usbd_status err; 2043 int i, s; 2044 2045 if (sc->sc_dying) 2046 return (USBD_IOERROR); 2047 2048 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2049 xfer, xfer->length, xfer->flags)); 2050 2051 #ifdef DIAGNOSTIC 2052 if (xfer->rqflags & URQ_REQUEST) 2053 panic("uhci_device_intr_transfer: a request"); 2054 #endif 2055 2056 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2057 &xfer->dmabuf, &data, &dataend); 2058 if (err) 2059 return (err); 2060 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2061 2062 #ifdef UHCI_DEBUG 2063 if (uhcidebug > 10) { 2064 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2065 uhci_dump_tds(data); 2066 uhci_dump_qh(upipe->u.intr.qhs[0]); 2067 } 2068 #endif 2069 2070 s = splusb(); 2071 /* Set up interrupt info. */ 2072 ii->xfer = xfer; 2073 ii->stdstart = data; 2074 ii->stdend = dataend; 2075 #ifdef DIAGNOSTIC 2076 if (!ii->isdone) { 2077 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2078 } 2079 ii->isdone = 0; 2080 #endif 2081 2082 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2083 upipe->u.intr.qhs[0])); 2084 for (i = 0; i < upipe->u.intr.npoll; i++) { 2085 sqh = upipe->u.intr.qhs[i]; 2086 sqh->elink = data; 2087 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2088 } 2089 uhci_add_intr_info(sc, ii); 2090 xfer->status = USBD_IN_PROGRESS; 2091 splx(s); 2092 2093 #ifdef UHCI_DEBUG 2094 if (uhcidebug > 10) { 2095 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2096 uhci_dump_tds(data); 2097 uhci_dump_qh(upipe->u.intr.qhs[0]); 2098 } 2099 #endif 2100 2101 return (USBD_IN_PROGRESS); 2102 } 2103 2104 /* Abort a device control request. */ 2105 void 2106 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2107 { 2108 DPRINTF(("uhci_device_ctrl_abort:\n")); 2109 uhci_abort_xfer(xfer, USBD_CANCELLED); 2110 } 2111 2112 /* Close a device control pipe. */ 2113 void 2114 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2115 { 2116 } 2117 2118 /* Abort a device interrupt request. */ 2119 void 2120 uhci_device_intr_abort(usbd_xfer_handle xfer) 2121 { 2122 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2123 if (xfer->pipe->intrxfer == xfer) { 2124 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2125 xfer->pipe->intrxfer = NULL; 2126 } 2127 uhci_abort_xfer(xfer, USBD_CANCELLED); 2128 } 2129 2130 /* Close a device interrupt pipe. */ 2131 void 2132 uhci_device_intr_close(usbd_pipe_handle pipe) 2133 { 2134 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2135 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2136 int i, npoll; 2137 int s; 2138 2139 /* Unlink descriptors from controller data structures. */ 2140 npoll = upipe->u.intr.npoll; 2141 s = splusb(); 2142 for (i = 0; i < npoll; i++) 2143 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2144 splx(s); 2145 2146 /* 2147 * We now have to wait for any activity on the physical 2148 * descriptors to stop. 2149 */ 2150 usb_delay_ms(&sc->sc_bus, 2); 2151 2152 for(i = 0; i < npoll; i++) 2153 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2154 free(upipe->u.intr.qhs, M_USBHC); 2155 2156 /* XXX free other resources */ 2157 } 2158 2159 usbd_status 2160 uhci_device_request(usbd_xfer_handle xfer) 2161 { 2162 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2163 usb_device_request_t *req = &xfer->request; 2164 usbd_device_handle dev = upipe->pipe.device; 2165 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2166 int addr = dev->address; 2167 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2168 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2169 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2170 uhci_soft_qh_t *sqh; 2171 int len; 2172 u_int32_t ls; 2173 usbd_status err; 2174 int isread; 2175 int s; 2176 2177 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2178 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2179 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2180 UGETW(req->wIndex), UGETW(req->wLength), 2181 addr, endpt)); 2182 2183 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2184 isread = req->bmRequestType & UT_READ; 2185 len = UGETW(req->wLength); 2186 2187 setup = upipe->u.ctl.setup; 2188 stat = upipe->u.ctl.stat; 2189 sqh = upipe->u.ctl.sqh; 2190 2191 /* Set up data transaction */ 2192 if (len != 0) { 2193 upipe->nexttoggle = 1; 2194 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2195 &xfer->dmabuf, &data, &dataend); 2196 if (err) 2197 return (err); 2198 next = data; 2199 dataend->link.std = stat; 2200 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2201 } else { 2202 next = stat; 2203 } 2204 upipe->u.ctl.length = len; 2205 2206 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2207 2208 setup->link.std = next; 2209 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2210 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2211 UHCI_TD_ACTIVE); 2212 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2213 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2214 2215 stat->link.std = NULL; 2216 stat->td.td_link = htole32(UHCI_PTR_T); 2217 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2218 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2219 stat->td.td_token = 2220 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2221 UHCI_TD_IN (0, endpt, addr, 1)); 2222 stat->td.td_buffer = htole32(0); 2223 2224 #ifdef UHCI_DEBUG 2225 if (uhcidebug > 10) { 2226 DPRINTF(("uhci_device_request: before transfer\n")); 2227 uhci_dump_tds(setup); 2228 } 2229 #endif 2230 2231 /* Set up interrupt info. */ 2232 ii->xfer = xfer; 2233 ii->stdstart = setup; 2234 ii->stdend = stat; 2235 #ifdef DIAGNOSTIC 2236 if (!ii->isdone) { 2237 printf("uhci_device_request: not done, ii=%p\n", ii); 2238 } 2239 ii->isdone = 0; 2240 #endif 2241 2242 sqh->elink = setup; 2243 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2244 2245 s = splusb(); 2246 if (dev->speed == USB_SPEED_LOW) 2247 uhci_add_ls_ctrl(sc, sqh); 2248 else 2249 uhci_add_hs_ctrl(sc, sqh); 2250 uhci_add_intr_info(sc, ii); 2251 #ifdef UHCI_DEBUG 2252 if (uhcidebug > 12) { 2253 uhci_soft_td_t *std; 2254 uhci_soft_qh_t *xqh; 2255 uhci_soft_qh_t *sxqh; 2256 int maxqh = 0; 2257 uhci_physaddr_t link; 2258 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2259 for (std = sc->sc_vframes[0].htd, link = 0; 2260 (link & UHCI_PTR_QH) == 0; 2261 std = std->link.std) { 2262 link = le32toh(std->td.td_link); 2263 uhci_dump_td(std); 2264 } 2265 sxqh = (uhci_soft_qh_t *)std; 2266 uhci_dump_qh(sxqh); 2267 for (xqh = sxqh; 2268 xqh != NULL; 2269 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2270 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2271 uhci_dump_qh(xqh); 2272 } 2273 DPRINTF(("Enqueued QH:\n")); 2274 uhci_dump_qh(sqh); 2275 uhci_dump_tds(sqh->elink); 2276 } 2277 #endif 2278 if (xfer->timeout && !sc->sc_bus.use_polling) { 2279 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2280 uhci_timeout, ii); 2281 } 2282 xfer->status = USBD_IN_PROGRESS; 2283 splx(s); 2284 2285 return (USBD_NORMAL_COMPLETION); 2286 } 2287 2288 usbd_status 2289 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2290 { 2291 usbd_status err; 2292 2293 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2294 2295 /* Put it on our queue, */ 2296 err = usb_insert_transfer(xfer); 2297 2298 /* bail out on error, */ 2299 if (err && err != USBD_IN_PROGRESS) 2300 return (err); 2301 2302 /* XXX should check inuse here */ 2303 2304 /* insert into schedule, */ 2305 uhci_device_isoc_enter(xfer); 2306 2307 /* and start if the pipe wasn't running */ 2308 if (!err) 2309 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2310 2311 return (err); 2312 } 2313 2314 void 2315 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2316 { 2317 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2318 usbd_device_handle dev = upipe->pipe.device; 2319 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2320 struct iso *iso = &upipe->u.iso; 2321 uhci_soft_td_t *std; 2322 u_int32_t buf, len, status; 2323 int s, i, next, nframes; 2324 2325 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2326 "nframes=%d\n", 2327 iso->inuse, iso->next, xfer, xfer->nframes)); 2328 2329 if (sc->sc_dying) 2330 return; 2331 2332 if (xfer->status == USBD_IN_PROGRESS) { 2333 /* This request has already been entered into the frame list */ 2334 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2335 /* XXX */ 2336 } 2337 2338 #ifdef DIAGNOSTIC 2339 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2340 printf("uhci_device_isoc_enter: overflow!\n"); 2341 #endif 2342 2343 next = iso->next; 2344 if (next == -1) { 2345 /* Not in use yet, schedule it a few frames ahead. */ 2346 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2347 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2348 } 2349 2350 xfer->status = USBD_IN_PROGRESS; 2351 UXFER(xfer)->curframe = next; 2352 2353 buf = DMAADDR(&xfer->dmabuf, 0); 2354 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2355 UHCI_TD_ACTIVE | 2356 UHCI_TD_IOS); 2357 nframes = xfer->nframes; 2358 s = splusb(); 2359 for (i = 0; i < nframes; i++) { 2360 std = iso->stds[next]; 2361 if (++next >= UHCI_VFRAMELIST_COUNT) 2362 next = 0; 2363 len = xfer->frlengths[i]; 2364 std->td.td_buffer = htole32(buf); 2365 if (i == nframes - 1) 2366 status |= UHCI_TD_IOC; 2367 std->td.td_status = htole32(status); 2368 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2369 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2370 #ifdef UHCI_DEBUG 2371 if (uhcidebug > 5) { 2372 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2373 uhci_dump_td(std); 2374 } 2375 #endif 2376 buf += len; 2377 } 2378 iso->next = next; 2379 iso->inuse += xfer->nframes; 2380 2381 splx(s); 2382 } 2383 2384 usbd_status 2385 uhci_device_isoc_start(usbd_xfer_handle xfer) 2386 { 2387 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2388 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2389 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2390 uhci_soft_td_t *end; 2391 int s, i; 2392 2393 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2394 2395 if (sc->sc_dying) 2396 return (USBD_IOERROR); 2397 2398 #ifdef DIAGNOSTIC 2399 if (xfer->status != USBD_IN_PROGRESS) 2400 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2401 #endif 2402 2403 /* Find the last TD */ 2404 i = UXFER(xfer)->curframe + xfer->nframes; 2405 if (i >= UHCI_VFRAMELIST_COUNT) 2406 i -= UHCI_VFRAMELIST_COUNT; 2407 end = upipe->u.iso.stds[i]; 2408 2409 #ifdef DIAGNOSTIC 2410 if (end == NULL) { 2411 printf("uhci_device_isoc_start: end == NULL\n"); 2412 return (USBD_INVAL); 2413 } 2414 #endif 2415 2416 s = splusb(); 2417 2418 /* Set up interrupt info. */ 2419 ii->xfer = xfer; 2420 ii->stdstart = end; 2421 ii->stdend = end; 2422 #ifdef DIAGNOSTIC 2423 if (!ii->isdone) 2424 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2425 ii->isdone = 0; 2426 #endif 2427 uhci_add_intr_info(sc, ii); 2428 2429 splx(s); 2430 2431 return (USBD_IN_PROGRESS); 2432 } 2433 2434 void 2435 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2436 { 2437 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2438 uhci_soft_td_t **stds = upipe->u.iso.stds; 2439 uhci_soft_td_t *std; 2440 int i, n, s, nframes, maxlen, len; 2441 2442 s = splusb(); 2443 2444 /* Transfer is already done. */ 2445 if (xfer->status != USBD_NOT_STARTED && 2446 xfer->status != USBD_IN_PROGRESS) { 2447 splx(s); 2448 return; 2449 } 2450 2451 /* Give xfer the requested abort code. */ 2452 xfer->status = USBD_CANCELLED; 2453 2454 /* make hardware ignore it, */ 2455 nframes = xfer->nframes; 2456 n = UXFER(xfer)->curframe; 2457 maxlen = 0; 2458 for (i = 0; i < nframes; i++) { 2459 std = stds[n]; 2460 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2461 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2462 if (len > maxlen) 2463 maxlen = len; 2464 if (++n >= UHCI_VFRAMELIST_COUNT) 2465 n = 0; 2466 } 2467 2468 /* and wait until we are sure the hardware has finished. */ 2469 delay(maxlen); 2470 2471 #ifdef DIAGNOSTIC 2472 UXFER(xfer)->iinfo.isdone = 1; 2473 #endif 2474 /* Run callback and remove from interrupt list. */ 2475 usb_transfer_complete(xfer); 2476 2477 splx(s); 2478 } 2479 2480 void 2481 uhci_device_isoc_close(usbd_pipe_handle pipe) 2482 { 2483 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2484 usbd_device_handle dev = upipe->pipe.device; 2485 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2486 uhci_soft_td_t *std, *vstd; 2487 struct iso *iso; 2488 int i, s; 2489 2490 /* 2491 * Make sure all TDs are marked as inactive. 2492 * Wait for completion. 2493 * Unschedule. 2494 * Deallocate. 2495 */ 2496 iso = &upipe->u.iso; 2497 2498 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2499 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2500 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2501 2502 s = splusb(); 2503 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2504 std = iso->stds[i]; 2505 for (vstd = sc->sc_vframes[i].htd; 2506 vstd != NULL && vstd->link.std != std; 2507 vstd = vstd->link.std) 2508 ; 2509 if (vstd == NULL) { 2510 /*panic*/ 2511 printf("uhci_device_isoc_close: %p not found\n", std); 2512 splx(s); 2513 return; 2514 } 2515 vstd->link = std->link; 2516 vstd->td.td_link = std->td.td_link; 2517 uhci_free_std(sc, std); 2518 } 2519 splx(s); 2520 2521 free(iso->stds, M_USBHC); 2522 } 2523 2524 usbd_status 2525 uhci_setup_isoc(usbd_pipe_handle pipe) 2526 { 2527 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2528 usbd_device_handle dev = upipe->pipe.device; 2529 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2530 int addr = upipe->pipe.device->address; 2531 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2532 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2533 uhci_soft_td_t *std, *vstd; 2534 u_int32_t token; 2535 struct iso *iso; 2536 int i, s; 2537 2538 iso = &upipe->u.iso; 2539 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2540 M_USBHC, M_WAITOK); 2541 2542 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2543 UHCI_TD_OUT(0, endpt, addr, 0); 2544 2545 /* Allocate the TDs and mark as inactive; */ 2546 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2547 std = uhci_alloc_std(sc); 2548 if (std == 0) 2549 goto bad; 2550 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2551 std->td.td_token = htole32(token); 2552 iso->stds[i] = std; 2553 } 2554 2555 /* Insert TDs into schedule. */ 2556 s = splusb(); 2557 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2558 std = iso->stds[i]; 2559 vstd = sc->sc_vframes[i].htd; 2560 std->link = vstd->link; 2561 std->td.td_link = vstd->td.td_link; 2562 vstd->link.std = std; 2563 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2564 } 2565 splx(s); 2566 2567 iso->next = -1; 2568 iso->inuse = 0; 2569 2570 return (USBD_NORMAL_COMPLETION); 2571 2572 bad: 2573 while (--i >= 0) 2574 uhci_free_std(sc, iso->stds[i]); 2575 free(iso->stds, M_USBHC); 2576 return (USBD_NOMEM); 2577 } 2578 2579 void 2580 uhci_device_isoc_done(usbd_xfer_handle xfer) 2581 { 2582 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2583 2584 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2585 2586 if (ii->xfer != xfer) 2587 /* Not on interrupt list, ignore it. */ 2588 return; 2589 2590 #ifdef DIAGNOSTIC 2591 if (xfer->busy_free != XFER_BUSY) { 2592 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2593 xfer, xfer->busy_free); 2594 return; 2595 } 2596 2597 if (ii->stdend == NULL) { 2598 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2599 #ifdef UHCI_DEBUG 2600 uhci_dump_ii(ii); 2601 #endif 2602 return; 2603 } 2604 #endif 2605 2606 /* Turn off the interrupt since it is active even if the TD is not. */ 2607 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2608 2609 uhci_del_intr_info(ii); /* remove from active list */ 2610 } 2611 2612 void 2613 uhci_device_intr_done(usbd_xfer_handle xfer) 2614 { 2615 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2616 uhci_softc_t *sc = ii->sc; 2617 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2618 uhci_soft_qh_t *sqh; 2619 int i, npoll; 2620 2621 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2622 2623 npoll = upipe->u.intr.npoll; 2624 for(i = 0; i < npoll; i++) { 2625 sqh = upipe->u.intr.qhs[i]; 2626 sqh->elink = NULL; 2627 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2628 } 2629 uhci_free_std_chain(sc, ii->stdstart, NULL); 2630 2631 /* XXX Wasteful. */ 2632 if (xfer->pipe->repeat) { 2633 uhci_soft_td_t *data, *dataend; 2634 2635 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2636 2637 /* This alloc cannot fail since we freed the chain above. */ 2638 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2639 &xfer->dmabuf, &data, &dataend); 2640 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2641 2642 #ifdef UHCI_DEBUG 2643 if (uhcidebug > 10) { 2644 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2645 uhci_dump_tds(data); 2646 uhci_dump_qh(upipe->u.intr.qhs[0]); 2647 } 2648 #endif 2649 2650 ii->stdstart = data; 2651 ii->stdend = dataend; 2652 #ifdef DIAGNOSTIC 2653 if (!ii->isdone) { 2654 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2655 } 2656 ii->isdone = 0; 2657 #endif 2658 for (i = 0; i < npoll; i++) { 2659 sqh = upipe->u.intr.qhs[i]; 2660 sqh->elink = data; 2661 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2662 } 2663 xfer->status = USBD_IN_PROGRESS; 2664 /* The ii is already on the examined list, just leave it. */ 2665 } else { 2666 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2667 uhci_del_intr_info(ii); 2668 } 2669 } 2670 2671 /* Deallocate request data structures */ 2672 void 2673 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2674 { 2675 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2676 uhci_softc_t *sc = ii->sc; 2677 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2678 2679 #ifdef DIAGNOSTIC 2680 if (!(xfer->rqflags & URQ_REQUEST)) 2681 panic("uhci_ctrl_done: not a request"); 2682 #endif 2683 2684 uhci_del_intr_info(ii); /* remove from active list */ 2685 2686 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2687 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2688 else 2689 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2690 2691 if (upipe->u.ctl.length != 0) 2692 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2693 2694 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2695 } 2696 2697 /* Deallocate request data structures */ 2698 void 2699 uhci_device_bulk_done(usbd_xfer_handle xfer) 2700 { 2701 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2702 uhci_softc_t *sc = ii->sc; 2703 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2704 2705 uhci_del_intr_info(ii); /* remove from active list */ 2706 2707 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2708 2709 uhci_free_std_chain(sc, ii->stdstart, NULL); 2710 2711 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2712 } 2713 2714 /* Add interrupt QH, called with vflock. */ 2715 void 2716 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2717 { 2718 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2719 uhci_soft_qh_t *eqh; 2720 2721 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2722 2723 eqh = vf->eqh; 2724 sqh->hlink = eqh->hlink; 2725 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2726 eqh->hlink = sqh; 2727 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2728 vf->eqh = sqh; 2729 vf->bandwidth++; 2730 } 2731 2732 /* Remove interrupt QH. */ 2733 void 2734 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2735 { 2736 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2737 uhci_soft_qh_t *pqh; 2738 2739 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2740 2741 /* See comment in uhci_remove_ctrl() */ 2742 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2743 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2744 delay(UHCI_QH_REMOVE_DELAY); 2745 } 2746 2747 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2748 pqh->hlink = sqh->hlink; 2749 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2750 delay(UHCI_QH_REMOVE_DELAY); 2751 if (vf->eqh == sqh) 2752 vf->eqh = pqh; 2753 vf->bandwidth--; 2754 } 2755 2756 usbd_status 2757 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2758 { 2759 uhci_soft_qh_t *sqh; 2760 int i, npoll, s; 2761 u_int bestbw, bw, bestoffs, offs; 2762 2763 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2764 if (ival == 0) { 2765 printf("uhci_setintr: 0 interval\n"); 2766 return (USBD_INVAL); 2767 } 2768 2769 if (ival > UHCI_VFRAMELIST_COUNT) 2770 ival = UHCI_VFRAMELIST_COUNT; 2771 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2772 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2773 2774 upipe->u.intr.npoll = npoll; 2775 upipe->u.intr.qhs = 2776 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2777 2778 /* 2779 * Figure out which offset in the schedule that has most 2780 * bandwidth left over. 2781 */ 2782 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2783 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2784 for (bw = i = 0; i < npoll; i++) 2785 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2786 if (bw < bestbw) { 2787 bestbw = bw; 2788 bestoffs = offs; 2789 } 2790 } 2791 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2792 2793 for(i = 0; i < npoll; i++) { 2794 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2795 sqh->elink = NULL; 2796 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2797 sqh->pos = MOD(i * ival + bestoffs); 2798 } 2799 #undef MOD 2800 2801 s = splusb(); 2802 /* Enter QHs into the controller data structures. */ 2803 for(i = 0; i < npoll; i++) 2804 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2805 splx(s); 2806 2807 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2808 return (USBD_NORMAL_COMPLETION); 2809 } 2810 2811 /* Open a new pipe. */ 2812 usbd_status 2813 uhci_open(usbd_pipe_handle pipe) 2814 { 2815 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2816 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2817 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2818 usbd_status err; 2819 int ival; 2820 2821 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2822 pipe, pipe->device->address, 2823 ed->bEndpointAddress, sc->sc_addr)); 2824 2825 upipe->aborting = 0; 2826 upipe->nexttoggle = 0; 2827 2828 if (pipe->device->address == sc->sc_addr) { 2829 switch (ed->bEndpointAddress) { 2830 case USB_CONTROL_ENDPOINT: 2831 pipe->methods = &uhci_root_ctrl_methods; 2832 break; 2833 case UE_DIR_IN | UHCI_INTR_ENDPT: 2834 pipe->methods = &uhci_root_intr_methods; 2835 break; 2836 default: 2837 return (USBD_INVAL); 2838 } 2839 } else { 2840 switch (ed->bmAttributes & UE_XFERTYPE) { 2841 case UE_CONTROL: 2842 pipe->methods = &uhci_device_ctrl_methods; 2843 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2844 if (upipe->u.ctl.sqh == NULL) 2845 goto bad; 2846 upipe->u.ctl.setup = uhci_alloc_std(sc); 2847 if (upipe->u.ctl.setup == NULL) { 2848 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2849 goto bad; 2850 } 2851 upipe->u.ctl.stat = uhci_alloc_std(sc); 2852 if (upipe->u.ctl.stat == NULL) { 2853 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2854 uhci_free_std(sc, upipe->u.ctl.setup); 2855 goto bad; 2856 } 2857 err = usb_allocmem(&sc->sc_bus, 2858 sizeof(usb_device_request_t), 2859 0, &upipe->u.ctl.reqdma); 2860 if (err) { 2861 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2862 uhci_free_std(sc, upipe->u.ctl.setup); 2863 uhci_free_std(sc, upipe->u.ctl.stat); 2864 goto bad; 2865 } 2866 break; 2867 case UE_INTERRUPT: 2868 pipe->methods = &uhci_device_intr_methods; 2869 ival = pipe->interval; 2870 if (ival == USBD_DEFAULT_INTERVAL) 2871 ival = ed->bInterval; 2872 return (uhci_device_setintr(sc, upipe, ival)); 2873 case UE_ISOCHRONOUS: 2874 pipe->methods = &uhci_device_isoc_methods; 2875 return (uhci_setup_isoc(pipe)); 2876 case UE_BULK: 2877 pipe->methods = &uhci_device_bulk_methods; 2878 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2879 if (upipe->u.bulk.sqh == NULL) 2880 goto bad; 2881 break; 2882 } 2883 } 2884 return (USBD_NORMAL_COMPLETION); 2885 2886 bad: 2887 return (USBD_NOMEM); 2888 } 2889 2890 /* 2891 * Data structures and routines to emulate the root hub. 2892 */ 2893 usb_device_descriptor_t uhci_devd = { 2894 USB_DEVICE_DESCRIPTOR_SIZE, 2895 UDESC_DEVICE, /* type */ 2896 {0x00, 0x01}, /* USB version */ 2897 UDCLASS_HUB, /* class */ 2898 UDSUBCLASS_HUB, /* subclass */ 2899 UDPROTO_FSHUB, /* protocol */ 2900 64, /* max packet */ 2901 {0},{0},{0x00,0x01}, /* device id */ 2902 1,2,0, /* string indicies */ 2903 1 /* # of configurations */ 2904 }; 2905 2906 usb_config_descriptor_t uhci_confd = { 2907 USB_CONFIG_DESCRIPTOR_SIZE, 2908 UDESC_CONFIG, 2909 {USB_CONFIG_DESCRIPTOR_SIZE + 2910 USB_INTERFACE_DESCRIPTOR_SIZE + 2911 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2912 1, 2913 1, 2914 0, 2915 UC_SELF_POWERED, 2916 0 /* max power */ 2917 }; 2918 2919 usb_interface_descriptor_t uhci_ifcd = { 2920 USB_INTERFACE_DESCRIPTOR_SIZE, 2921 UDESC_INTERFACE, 2922 0, 2923 0, 2924 1, 2925 UICLASS_HUB, 2926 UISUBCLASS_HUB, 2927 UIPROTO_FSHUB, 2928 0 2929 }; 2930 2931 usb_endpoint_descriptor_t uhci_endpd = { 2932 USB_ENDPOINT_DESCRIPTOR_SIZE, 2933 UDESC_ENDPOINT, 2934 UE_DIR_IN | UHCI_INTR_ENDPT, 2935 UE_INTERRUPT, 2936 {8}, 2937 255 2938 }; 2939 2940 usb_hub_descriptor_t uhci_hubd_piix = { 2941 USB_HUB_DESCRIPTOR_SIZE, 2942 UDESC_HUB, 2943 2, 2944 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2945 50, /* power on to power good */ 2946 0, 2947 { 0x00 }, /* both ports are removable */ 2948 }; 2949 2950 int 2951 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2952 { 2953 int i; 2954 2955 if (l == 0) 2956 return (0); 2957 p->bLength = 2 * strlen(s) + 2; 2958 if (l == 1) 2959 return (1); 2960 p->bDescriptorType = UDESC_STRING; 2961 l -= 2; 2962 for (i = 0; s[i] && l > 1; i++, l -= 2) 2963 USETW2(p->bString[i], 0, s[i]); 2964 return (2*i+2); 2965 } 2966 2967 /* 2968 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2969 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2970 * should not be used by the USB subsystem. As we cannot issue a 2971 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2972 * will be enabled as part of the reset. 2973 * 2974 * On the VT83C572, the port cannot be successfully enabled until the 2975 * outstanding "port enable change" and "connection status change" 2976 * events have been reset. 2977 */ 2978 Static usbd_status 2979 uhci_portreset(uhci_softc_t *sc, int index) 2980 { 2981 int lim, port, x; 2982 2983 if (index == 1) 2984 port = UHCI_PORTSC1; 2985 else if (index == 2) 2986 port = UHCI_PORTSC2; 2987 else 2988 return (USBD_IOERROR); 2989 2990 x = URWMASK(UREAD2(sc, port)); 2991 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2992 2993 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 2994 2995 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 2996 index, UREAD2(sc, port))); 2997 2998 x = URWMASK(UREAD2(sc, port)); 2999 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3000 3001 delay(100); 3002 3003 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3004 index, UREAD2(sc, port))); 3005 3006 x = URWMASK(UREAD2(sc, port)); 3007 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3008 3009 for (lim = 10; --lim > 0;) { 3010 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3011 3012 x = UREAD2(sc, port); 3013 3014 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3015 index, lim, x)); 3016 3017 if (!(x & UHCI_PORTSC_CCS)) { 3018 /* 3019 * No device is connected (or was disconnected 3020 * during reset). Consider the port reset. 3021 * The delay must be long enough to ensure on 3022 * the initial iteration that the device 3023 * connection will have been registered. 50ms 3024 * appears to be sufficient, but 20ms is not. 3025 */ 3026 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3027 index, lim)); 3028 break; 3029 } 3030 3031 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3032 /* 3033 * Port enabled changed and/or connection 3034 * status changed were set. Reset either or 3035 * both raised flags (by writing a 1 to that 3036 * bit), and wait again for state to settle. 3037 */ 3038 UWRITE2(sc, port, URWMASK(x) | 3039 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3040 continue; 3041 } 3042 3043 if (x & UHCI_PORTSC_PE) 3044 /* Port is enabled */ 3045 break; 3046 3047 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3048 } 3049 3050 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3051 index, UREAD2(sc, port))); 3052 3053 if (lim <= 0) { 3054 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3055 return (USBD_TIMEOUT); 3056 } 3057 3058 sc->sc_isreset = 1; 3059 return (USBD_NORMAL_COMPLETION); 3060 } 3061 3062 /* 3063 * Simulate a hardware hub by handling all the necessary requests. 3064 */ 3065 usbd_status 3066 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3067 { 3068 usbd_status err; 3069 3070 /* Insert last in queue. */ 3071 err = usb_insert_transfer(xfer); 3072 if (err) 3073 return (err); 3074 3075 /* 3076 * Pipe isn't running (otherwise err would be USBD_INPROG), 3077 * so start it first. 3078 */ 3079 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3080 } 3081 3082 usbd_status 3083 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3084 { 3085 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3086 usb_device_request_t *req; 3087 void *buf = NULL; 3088 int port, x; 3089 int s, len, value, index, status, change, l, totlen = 0; 3090 usb_port_status_t ps; 3091 usbd_status err; 3092 3093 if (sc->sc_dying) 3094 return (USBD_IOERROR); 3095 3096 #ifdef DIAGNOSTIC 3097 if (!(xfer->rqflags & URQ_REQUEST)) 3098 panic("uhci_root_ctrl_transfer: not a request"); 3099 #endif 3100 req = &xfer->request; 3101 3102 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3103 req->bmRequestType, req->bRequest)); 3104 3105 len = UGETW(req->wLength); 3106 value = UGETW(req->wValue); 3107 index = UGETW(req->wIndex); 3108 3109 if (len != 0) 3110 buf = KERNADDR(&xfer->dmabuf, 0); 3111 3112 #define C(x,y) ((x) | ((y) << 8)) 3113 switch(C(req->bRequest, req->bmRequestType)) { 3114 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3115 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3116 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3117 /* 3118 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3119 * for the integrated root hub. 3120 */ 3121 break; 3122 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3123 if (len > 0) { 3124 *(u_int8_t *)buf = sc->sc_conf; 3125 totlen = 1; 3126 } 3127 break; 3128 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3129 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3130 switch(value >> 8) { 3131 case UDESC_DEVICE: 3132 if ((value & 0xff) != 0) { 3133 err = USBD_IOERROR; 3134 goto ret; 3135 } 3136 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3137 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3138 memcpy(buf, &uhci_devd, l); 3139 break; 3140 case UDESC_CONFIG: 3141 if ((value & 0xff) != 0) { 3142 err = USBD_IOERROR; 3143 goto ret; 3144 } 3145 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3146 memcpy(buf, &uhci_confd, l); 3147 buf = (char *)buf + l; 3148 len -= l; 3149 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3150 totlen += l; 3151 memcpy(buf, &uhci_ifcd, l); 3152 buf = (char *)buf + l; 3153 len -= l; 3154 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3155 totlen += l; 3156 memcpy(buf, &uhci_endpd, l); 3157 break; 3158 case UDESC_STRING: 3159 if (len == 0) 3160 break; 3161 *(u_int8_t *)buf = 0; 3162 totlen = 1; 3163 switch (value & 0xff) { 3164 case 1: /* Vendor */ 3165 totlen = uhci_str(buf, len, sc->sc_vendor); 3166 break; 3167 case 2: /* Product */ 3168 totlen = uhci_str(buf, len, "UHCI root hub"); 3169 break; 3170 } 3171 break; 3172 default: 3173 err = USBD_IOERROR; 3174 goto ret; 3175 } 3176 break; 3177 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3178 if (len > 0) { 3179 *(u_int8_t *)buf = 0; 3180 totlen = 1; 3181 } 3182 break; 3183 case C(UR_GET_STATUS, UT_READ_DEVICE): 3184 if (len > 1) { 3185 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3186 totlen = 2; 3187 } 3188 break; 3189 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3190 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3191 if (len > 1) { 3192 USETW(((usb_status_t *)buf)->wStatus, 0); 3193 totlen = 2; 3194 } 3195 break; 3196 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3197 if (value >= USB_MAX_DEVICES) { 3198 err = USBD_IOERROR; 3199 goto ret; 3200 } 3201 sc->sc_addr = value; 3202 break; 3203 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3204 if (value != 0 && value != 1) { 3205 err = USBD_IOERROR; 3206 goto ret; 3207 } 3208 sc->sc_conf = value; 3209 break; 3210 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3211 break; 3212 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3213 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3214 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3215 err = USBD_IOERROR; 3216 goto ret; 3217 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3218 break; 3219 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3220 break; 3221 /* Hub requests */ 3222 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3223 break; 3224 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3225 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3226 "port=%d feature=%d\n", 3227 index, value)); 3228 if (index == 1) 3229 port = UHCI_PORTSC1; 3230 else if (index == 2) 3231 port = UHCI_PORTSC2; 3232 else { 3233 err = USBD_IOERROR; 3234 goto ret; 3235 } 3236 switch(value) { 3237 case UHF_PORT_ENABLE: 3238 x = URWMASK(UREAD2(sc, port)); 3239 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3240 break; 3241 case UHF_PORT_SUSPEND: 3242 x = URWMASK(UREAD2(sc, port)); 3243 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3244 break; 3245 case UHF_PORT_RESET: 3246 x = URWMASK(UREAD2(sc, port)); 3247 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3248 break; 3249 case UHF_C_PORT_CONNECTION: 3250 x = URWMASK(UREAD2(sc, port)); 3251 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3252 break; 3253 case UHF_C_PORT_ENABLE: 3254 x = URWMASK(UREAD2(sc, port)); 3255 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3256 break; 3257 case UHF_C_PORT_OVER_CURRENT: 3258 x = URWMASK(UREAD2(sc, port)); 3259 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3260 break; 3261 case UHF_C_PORT_RESET: 3262 sc->sc_isreset = 0; 3263 err = USBD_NORMAL_COMPLETION; 3264 goto ret; 3265 case UHF_PORT_CONNECTION: 3266 case UHF_PORT_OVER_CURRENT: 3267 case UHF_PORT_POWER: 3268 case UHF_PORT_LOW_SPEED: 3269 case UHF_C_PORT_SUSPEND: 3270 default: 3271 err = USBD_IOERROR; 3272 goto ret; 3273 } 3274 break; 3275 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3276 if (index == 1) 3277 port = UHCI_PORTSC1; 3278 else if (index == 2) 3279 port = UHCI_PORTSC2; 3280 else { 3281 err = USBD_IOERROR; 3282 goto ret; 3283 } 3284 if (len > 0) { 3285 *(u_int8_t *)buf = 3286 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3287 UHCI_PORTSC_LS_SHIFT; 3288 totlen = 1; 3289 } 3290 break; 3291 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3292 if (value != 0) { 3293 err = USBD_IOERROR; 3294 goto ret; 3295 } 3296 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3297 totlen = l; 3298 memcpy(buf, &uhci_hubd_piix, l); 3299 break; 3300 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3301 if (len != 4) { 3302 err = USBD_IOERROR; 3303 goto ret; 3304 } 3305 memset(buf, 0, len); 3306 totlen = len; 3307 break; 3308 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3309 if (index == 1) 3310 port = UHCI_PORTSC1; 3311 else if (index == 2) 3312 port = UHCI_PORTSC2; 3313 else { 3314 err = USBD_IOERROR; 3315 goto ret; 3316 } 3317 if (len != 4) { 3318 err = USBD_IOERROR; 3319 goto ret; 3320 } 3321 x = UREAD2(sc, port); 3322 status = change = 0; 3323 if (x & UHCI_PORTSC_CCS) 3324 status |= UPS_CURRENT_CONNECT_STATUS; 3325 if (x & UHCI_PORTSC_CSC) 3326 change |= UPS_C_CONNECT_STATUS; 3327 if (x & UHCI_PORTSC_PE) 3328 status |= UPS_PORT_ENABLED; 3329 if (x & UHCI_PORTSC_POEDC) 3330 change |= UPS_C_PORT_ENABLED; 3331 if (x & UHCI_PORTSC_OCI) 3332 status |= UPS_OVERCURRENT_INDICATOR; 3333 if (x & UHCI_PORTSC_OCIC) 3334 change |= UPS_C_OVERCURRENT_INDICATOR; 3335 if (x & UHCI_PORTSC_SUSP) 3336 status |= UPS_SUSPEND; 3337 if (x & UHCI_PORTSC_LSDA) 3338 status |= UPS_LOW_SPEED; 3339 status |= UPS_PORT_POWER; 3340 if (sc->sc_isreset) 3341 change |= UPS_C_PORT_RESET; 3342 USETW(ps.wPortStatus, status); 3343 USETW(ps.wPortChange, change); 3344 l = min(len, sizeof ps); 3345 memcpy(buf, &ps, l); 3346 totlen = l; 3347 break; 3348 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3349 err = USBD_IOERROR; 3350 goto ret; 3351 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3352 break; 3353 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3354 if (index == 1) 3355 port = UHCI_PORTSC1; 3356 else if (index == 2) 3357 port = UHCI_PORTSC2; 3358 else { 3359 err = USBD_IOERROR; 3360 goto ret; 3361 } 3362 switch(value) { 3363 case UHF_PORT_ENABLE: 3364 x = URWMASK(UREAD2(sc, port)); 3365 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3366 break; 3367 case UHF_PORT_SUSPEND: 3368 x = URWMASK(UREAD2(sc, port)); 3369 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3370 break; 3371 case UHF_PORT_RESET: 3372 err = uhci_portreset(sc, index); 3373 goto ret; 3374 case UHF_PORT_POWER: 3375 /* Pretend we turned on power */ 3376 err = USBD_NORMAL_COMPLETION; 3377 goto ret; 3378 case UHF_C_PORT_CONNECTION: 3379 case UHF_C_PORT_ENABLE: 3380 case UHF_C_PORT_OVER_CURRENT: 3381 case UHF_PORT_CONNECTION: 3382 case UHF_PORT_OVER_CURRENT: 3383 case UHF_PORT_LOW_SPEED: 3384 case UHF_C_PORT_SUSPEND: 3385 case UHF_C_PORT_RESET: 3386 default: 3387 err = USBD_IOERROR; 3388 goto ret; 3389 } 3390 break; 3391 default: 3392 err = USBD_IOERROR; 3393 goto ret; 3394 } 3395 xfer->actlen = totlen; 3396 err = USBD_NORMAL_COMPLETION; 3397 ret: 3398 xfer->status = err; 3399 s = splusb(); 3400 usb_transfer_complete(xfer); 3401 splx(s); 3402 return (USBD_IN_PROGRESS); 3403 } 3404 3405 /* Abort a root control request. */ 3406 void 3407 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3408 { 3409 /* Nothing to do, all transfers are synchronous. */ 3410 } 3411 3412 /* Close the root pipe. */ 3413 void 3414 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3415 { 3416 DPRINTF(("uhci_root_ctrl_close\n")); 3417 } 3418 3419 /* Abort a root interrupt request. */ 3420 void 3421 uhci_root_intr_abort(usbd_xfer_handle xfer) 3422 { 3423 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3424 3425 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3426 sc->sc_intr_xfer = NULL; 3427 3428 if (xfer->pipe->intrxfer == xfer) { 3429 DPRINTF(("uhci_root_intr_abort: remove\n")); 3430 xfer->pipe->intrxfer = 0; 3431 } 3432 xfer->status = USBD_CANCELLED; 3433 #ifdef DIAGNOSTIC 3434 UXFER(xfer)->iinfo.isdone = 1; 3435 #endif 3436 usb_transfer_complete(xfer); 3437 } 3438 3439 usbd_status 3440 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3441 { 3442 usbd_status err; 3443 3444 /* Insert last in queue. */ 3445 err = usb_insert_transfer(xfer); 3446 if (err) 3447 return (err); 3448 3449 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3450 * start first 3451 */ 3452 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3453 } 3454 3455 /* Start a transfer on the root interrupt pipe */ 3456 usbd_status 3457 uhci_root_intr_start(usbd_xfer_handle xfer) 3458 { 3459 usbd_pipe_handle pipe = xfer->pipe; 3460 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3461 3462 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3463 xfer, xfer->length, xfer->flags)); 3464 3465 if (sc->sc_dying) 3466 return (USBD_IOERROR); 3467 3468 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3469 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3470 sc->sc_intr_xfer = xfer; 3471 return (USBD_IN_PROGRESS); 3472 } 3473 3474 /* Close the root interrupt pipe. */ 3475 void 3476 uhci_root_intr_close(usbd_pipe_handle pipe) 3477 { 3478 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3479 3480 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3481 sc->sc_intr_xfer = NULL; 3482 DPRINTF(("uhci_root_intr_close\n")); 3483 } 3484