uhci.c revision 1.166
1 /* $NetBSD: uhci.c,v 1.166 2002/12/31 02:21:31 dsainty Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/data/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.166 2002/12/31 02:21:31 dsainty 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 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 747 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 748 uhci_run(sc, 1); /* and start traffic again */ 749 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 750 sc->sc_bus.use_polling--; 751 if (sc->sc_intr_xfer != NULL) 752 usb_callout(sc->sc_poll_handle, sc->sc_ival, 753 uhci_poll_hub, sc->sc_intr_xfer); 754 #ifdef UHCI_DEBUG 755 if (uhcidebug > 2) 756 uhci_dumpregs(sc); 757 #endif 758 break; 759 case PWR_SOFTSUSPEND: 760 case PWR_SOFTSTANDBY: 761 case PWR_SOFTRESUME: 762 break; 763 } 764 splx(s); 765 } 766 767 #ifdef UHCI_DEBUG 768 Static void 769 uhci_dumpregs(uhci_softc_t *sc) 770 { 771 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 772 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 773 USBDEVNAME(sc->sc_bus.bdev), 774 UREAD2(sc, UHCI_CMD), 775 UREAD2(sc, UHCI_STS), 776 UREAD2(sc, UHCI_INTR), 777 UREAD2(sc, UHCI_FRNUM), 778 UREAD4(sc, UHCI_FLBASEADDR), 779 UREAD1(sc, UHCI_SOF), 780 UREAD2(sc, UHCI_PORTSC1), 781 UREAD2(sc, UHCI_PORTSC2))); 782 } 783 784 void 785 uhci_dump_td(uhci_soft_td_t *p) 786 { 787 char sbuf[128], sbuf2[128]; 788 789 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 790 "token=0x%08lx buffer=0x%08lx\n", 791 p, (long)p->physaddr, 792 (long)le32toh(p->td.td_link), 793 (long)le32toh(p->td.td_status), 794 (long)le32toh(p->td.td_token), 795 (long)le32toh(p->td.td_buffer))); 796 797 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 798 sbuf, sizeof(sbuf)); 799 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 800 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 801 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 802 sbuf2, sizeof(sbuf2)); 803 804 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 805 "D=%d,maxlen=%d\n", sbuf, sbuf2, 806 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 807 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 808 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 809 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 810 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 811 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 812 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 813 } 814 815 void 816 uhci_dump_qh(uhci_soft_qh_t *sqh) 817 { 818 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 819 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 820 le32toh(sqh->qh.qh_elink))); 821 } 822 823 824 #if 1 825 void 826 uhci_dump(void) 827 { 828 uhci_dump_all(thesc); 829 } 830 #endif 831 832 void 833 uhci_dump_all(uhci_softc_t *sc) 834 { 835 uhci_dumpregs(sc); 836 printf("intrs=%d\n", sc->sc_bus.no_intrs); 837 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 838 uhci_dump_qh(sc->sc_lctl_start); 839 } 840 841 842 void 843 uhci_dump_qhs(uhci_soft_qh_t *sqh) 844 { 845 uhci_dump_qh(sqh); 846 847 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 848 * Traverses sideways first, then down. 849 * 850 * QH1 851 * QH2 852 * No QH 853 * TD2.1 854 * TD2.2 855 * TD1.1 856 * etc. 857 * 858 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 859 */ 860 861 862 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 863 uhci_dump_qhs(sqh->hlink); 864 else 865 DPRINTF(("No QH\n")); 866 867 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 868 uhci_dump_tds(sqh->elink); 869 else 870 DPRINTF(("No TD\n")); 871 } 872 873 void 874 uhci_dump_tds(uhci_soft_td_t *std) 875 { 876 uhci_soft_td_t *td; 877 878 for(td = std; td != NULL; td = td->link.std) { 879 uhci_dump_td(td); 880 881 /* Check whether the link pointer in this TD marks 882 * the link pointer as end of queue. This avoids 883 * printing the free list in case the queue/TD has 884 * already been moved there (seatbelt). 885 */ 886 if (le32toh(td->td.td_link) & UHCI_PTR_T || 887 le32toh(td->td.td_link) == 0) 888 break; 889 } 890 } 891 892 Static void 893 uhci_dump_ii(uhci_intr_info_t *ii) 894 { 895 usbd_pipe_handle pipe; 896 usb_endpoint_descriptor_t *ed; 897 usbd_device_handle dev; 898 899 #ifdef DIAGNOSTIC 900 #define DONE ii->isdone 901 #else 902 #define DONE 0 903 #endif 904 if (ii == NULL) { 905 printf("ii NULL\n"); 906 return; 907 } 908 if (ii->xfer == NULL) { 909 printf("ii %p: done=%d xfer=NULL\n", 910 ii, DONE); 911 return; 912 } 913 pipe = ii->xfer->pipe; 914 if (pipe == NULL) { 915 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 916 ii, DONE, ii->xfer); 917 return; 918 } 919 if (pipe->endpoint == NULL) { 920 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 921 ii, DONE, ii->xfer, pipe); 922 return; 923 } 924 if (pipe->device == NULL) { 925 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 926 ii, DONE, ii->xfer, pipe); 927 return; 928 } 929 ed = pipe->endpoint->edesc; 930 dev = pipe->device; 931 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", 932 ii, DONE, ii->xfer, dev, 933 UGETW(dev->ddesc.idVendor), 934 UGETW(dev->ddesc.idProduct), 935 dev->address, pipe, 936 ed->bEndpointAddress, ed->bmAttributes); 937 #undef DONE 938 } 939 940 void uhci_dump_iis(struct uhci_softc *sc); 941 void 942 uhci_dump_iis(struct uhci_softc *sc) 943 { 944 uhci_intr_info_t *ii; 945 946 printf("intr_info list:\n"); 947 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 948 uhci_dump_ii(ii); 949 } 950 951 void iidump(void); 952 void iidump(void) { uhci_dump_iis(thesc); } 953 954 #endif 955 956 /* 957 * This routine is executed periodically and simulates interrupts 958 * from the root controller interrupt pipe for port status change. 959 */ 960 void 961 uhci_poll_hub(void *addr) 962 { 963 usbd_xfer_handle xfer = addr; 964 usbd_pipe_handle pipe = xfer->pipe; 965 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 966 int s; 967 u_char *p; 968 969 DPRINTFN(20, ("uhci_poll_hub\n")); 970 971 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 972 973 p = KERNADDR(&xfer->dmabuf, 0); 974 p[0] = 0; 975 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 976 p[0] |= 1<<1; 977 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 978 p[0] |= 1<<2; 979 if (p[0] == 0) 980 /* No change, try again in a while */ 981 return; 982 983 xfer->actlen = 1; 984 xfer->status = USBD_NORMAL_COMPLETION; 985 s = splusb(); 986 xfer->device->bus->intr_context++; 987 usb_transfer_complete(xfer); 988 xfer->device->bus->intr_context--; 989 splx(s); 990 } 991 992 void 993 uhci_root_intr_done(usbd_xfer_handle xfer) 994 { 995 } 996 997 void 998 uhci_root_ctrl_done(usbd_xfer_handle xfer) 999 { 1000 } 1001 1002 /* 1003 * Let the last QH loop back to the high speed control transfer QH. 1004 * This is what intel calls "bandwidth reclamation" and improves 1005 * USB performance a lot for some devices. 1006 * If we are already looping, just count it. 1007 */ 1008 void 1009 uhci_add_loop(uhci_softc_t *sc) { 1010 #ifdef UHCI_DEBUG 1011 if (uhcinoloop) 1012 return; 1013 #endif 1014 if (++sc->sc_loops == 1) { 1015 DPRINTFN(5,("uhci_start_loop: add\n")); 1016 /* Note, we don't loop back the soft pointer. */ 1017 sc->sc_last_qh->qh.qh_hlink = 1018 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1019 } 1020 } 1021 1022 void 1023 uhci_rem_loop(uhci_softc_t *sc) { 1024 #ifdef UHCI_DEBUG 1025 if (uhcinoloop) 1026 return; 1027 #endif 1028 if (--sc->sc_loops == 0) { 1029 DPRINTFN(5,("uhci_end_loop: remove\n")); 1030 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1031 } 1032 } 1033 1034 /* Add high speed control QH, called at splusb(). */ 1035 void 1036 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1037 { 1038 uhci_soft_qh_t *eqh; 1039 1040 SPLUSBCHECK; 1041 1042 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1043 eqh = sc->sc_hctl_end; 1044 sqh->hlink = eqh->hlink; 1045 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1046 eqh->hlink = sqh; 1047 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1048 sc->sc_hctl_end = sqh; 1049 #ifdef UHCI_CTL_LOOP 1050 uhci_add_loop(sc); 1051 #endif 1052 } 1053 1054 /* Remove high speed control QH, called at splusb(). */ 1055 void 1056 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1057 { 1058 uhci_soft_qh_t *pqh; 1059 1060 SPLUSBCHECK; 1061 1062 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1063 #ifdef UHCI_CTL_LOOP 1064 uhci_rem_loop(sc); 1065 #endif 1066 /* 1067 * The T bit should be set in the elink of the QH so that the HC 1068 * doesn't follow the pointer. This condition may fail if the 1069 * the transferred packet was short so that the QH still points 1070 * at the last used TD. 1071 * In this case we set the T bit and wait a little for the HC 1072 * to stop looking at the TD. 1073 */ 1074 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1075 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1076 delay(UHCI_QH_REMOVE_DELAY); 1077 } 1078 1079 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1080 pqh->hlink = sqh->hlink; 1081 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1082 delay(UHCI_QH_REMOVE_DELAY); 1083 if (sc->sc_hctl_end == sqh) 1084 sc->sc_hctl_end = pqh; 1085 } 1086 1087 /* Add low speed control QH, called at splusb(). */ 1088 void 1089 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1090 { 1091 uhci_soft_qh_t *eqh; 1092 1093 SPLUSBCHECK; 1094 1095 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1096 eqh = sc->sc_lctl_end; 1097 sqh->hlink = eqh->hlink; 1098 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1099 eqh->hlink = sqh; 1100 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1101 sc->sc_lctl_end = sqh; 1102 } 1103 1104 /* Remove low speed control QH, called at splusb(). */ 1105 void 1106 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1107 { 1108 uhci_soft_qh_t *pqh; 1109 1110 SPLUSBCHECK; 1111 1112 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1113 /* See comment in uhci_remove_hs_ctrl() */ 1114 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1115 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1116 delay(UHCI_QH_REMOVE_DELAY); 1117 } 1118 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1119 pqh->hlink = sqh->hlink; 1120 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1121 delay(UHCI_QH_REMOVE_DELAY); 1122 if (sc->sc_lctl_end == sqh) 1123 sc->sc_lctl_end = pqh; 1124 } 1125 1126 /* Add bulk QH, called at splusb(). */ 1127 void 1128 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1129 { 1130 uhci_soft_qh_t *eqh; 1131 1132 SPLUSBCHECK; 1133 1134 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1135 eqh = sc->sc_bulk_end; 1136 sqh->hlink = eqh->hlink; 1137 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1138 eqh->hlink = sqh; 1139 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1140 sc->sc_bulk_end = sqh; 1141 uhci_add_loop(sc); 1142 } 1143 1144 /* Remove bulk QH, called at splusb(). */ 1145 void 1146 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1147 { 1148 uhci_soft_qh_t *pqh; 1149 1150 SPLUSBCHECK; 1151 1152 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1153 uhci_rem_loop(sc); 1154 /* See comment in uhci_remove_hs_ctrl() */ 1155 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1156 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1157 delay(UHCI_QH_REMOVE_DELAY); 1158 } 1159 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1160 pqh->hlink = sqh->hlink; 1161 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1162 delay(UHCI_QH_REMOVE_DELAY); 1163 if (sc->sc_bulk_end == sqh) 1164 sc->sc_bulk_end = pqh; 1165 } 1166 1167 Static int uhci_intr1(uhci_softc_t *); 1168 1169 int 1170 uhci_intr(void *arg) 1171 { 1172 uhci_softc_t *sc = arg; 1173 1174 if (sc->sc_dying) 1175 return (0); 1176 1177 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1178 if (sc->sc_bus.use_polling) { 1179 #ifdef DIAGNOSTIC 1180 printf("uhci_intr: ignored interrupt while polling\n"); 1181 #endif 1182 return (0); 1183 } 1184 return (uhci_intr1(sc)); 1185 } 1186 1187 int 1188 uhci_intr1(uhci_softc_t *sc) 1189 { 1190 int status; 1191 int ack; 1192 1193 #ifdef UHCI_DEBUG 1194 if (uhcidebug > 15) { 1195 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1196 uhci_dumpregs(sc); 1197 } 1198 #endif 1199 1200 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1201 if (status == 0) /* The interrupt was not for us. */ 1202 return (0); 1203 1204 if (sc->sc_suspend != PWR_RESUME) { 1205 printf("%s: interrupt while not operating ignored\n", 1206 USBDEVNAME(sc->sc_bus.bdev)); 1207 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1208 return (0); 1209 } 1210 1211 ack = 0; 1212 if (status & UHCI_STS_USBINT) 1213 ack |= UHCI_STS_USBINT; 1214 if (status & UHCI_STS_USBEI) 1215 ack |= UHCI_STS_USBEI; 1216 if (status & UHCI_STS_RD) { 1217 ack |= UHCI_STS_RD; 1218 #ifdef UHCI_DEBUG 1219 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1220 #endif 1221 } 1222 if (status & UHCI_STS_HSE) { 1223 ack |= UHCI_STS_HSE; 1224 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1225 } 1226 if (status & UHCI_STS_HCPE) { 1227 ack |= UHCI_STS_HCPE; 1228 printf("%s: host controller process error\n", 1229 USBDEVNAME(sc->sc_bus.bdev)); 1230 } 1231 if (status & UHCI_STS_HCH) { 1232 /* no acknowledge needed */ 1233 if (!sc->sc_dying) { 1234 printf("%s: host controller halted\n", 1235 USBDEVNAME(sc->sc_bus.bdev)); 1236 #ifdef UHCI_DEBUG 1237 uhci_dump_all(sc); 1238 #endif 1239 } 1240 sc->sc_dying = 1; 1241 } 1242 1243 if (!ack) 1244 return (0); /* nothing to acknowledge */ 1245 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1246 1247 sc->sc_bus.no_intrs++; 1248 usb_schedsoftintr(&sc->sc_bus); 1249 1250 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1251 1252 return (1); 1253 } 1254 1255 void 1256 uhci_softintr(void *v) 1257 { 1258 uhci_softc_t *sc = v; 1259 uhci_intr_info_t *ii; 1260 1261 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1262 sc->sc_bus.intr_context)); 1263 1264 sc->sc_bus.intr_context++; 1265 1266 /* 1267 * Interrupts on UHCI really suck. When the host controller 1268 * interrupts because a transfer is completed there is no 1269 * way of knowing which transfer it was. You can scan down 1270 * the TDs and QHs of the previous frame to limit the search, 1271 * but that assumes that the interrupt was not delayed by more 1272 * than 1 ms, which may not always be true (e.g. after debug 1273 * output on a slow console). 1274 * We scan all interrupt descriptors to see if any have 1275 * completed. 1276 */ 1277 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1278 uhci_check_intr(sc, ii); 1279 1280 #ifdef USB_USE_SOFTINTR 1281 if (sc->sc_softwake) { 1282 sc->sc_softwake = 0; 1283 wakeup(&sc->sc_softwake); 1284 } 1285 #endif /* USB_USE_SOFTINTR */ 1286 1287 sc->sc_bus.intr_context--; 1288 } 1289 1290 /* Check for an interrupt. */ 1291 void 1292 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1293 { 1294 uhci_soft_td_t *std, *lstd; 1295 u_int32_t status; 1296 1297 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1298 #ifdef DIAGNOSTIC 1299 if (ii == NULL) { 1300 printf("uhci_check_intr: no ii? %p\n", ii); 1301 return; 1302 } 1303 #endif 1304 if (ii->xfer->status == USBD_CANCELLED || 1305 ii->xfer->status == USBD_TIMEOUT) { 1306 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1307 return; 1308 } 1309 1310 if (ii->stdstart == NULL) 1311 return; 1312 lstd = ii->stdend; 1313 #ifdef DIAGNOSTIC 1314 if (lstd == NULL) { 1315 printf("uhci_check_intr: std==0\n"); 1316 return; 1317 } 1318 #endif 1319 /* 1320 * If the last TD is still active we need to check whether there 1321 * is a an error somewhere in the middle, or whether there was a 1322 * short packet (SPD and not ACTIVE). 1323 */ 1324 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1325 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1326 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1327 status = le32toh(std->td.td_status); 1328 /* If there's an active TD the xfer isn't done. */ 1329 if (status & UHCI_TD_ACTIVE) 1330 break; 1331 /* Any kind of error makes the xfer done. */ 1332 if (status & UHCI_TD_STALLED) 1333 goto done; 1334 /* We want short packets, and it is short: it's done */ 1335 if ((status & UHCI_TD_SPD) && 1336 UHCI_TD_GET_ACTLEN(status) < 1337 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1338 goto done; 1339 } 1340 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1341 ii, ii->stdstart)); 1342 return; 1343 } 1344 done: 1345 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1346 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1347 uhci_idone(ii); 1348 } 1349 1350 /* Called at splusb() */ 1351 void 1352 uhci_idone(uhci_intr_info_t *ii) 1353 { 1354 usbd_xfer_handle xfer = ii->xfer; 1355 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1356 uhci_soft_td_t *std; 1357 u_int32_t status = 0, nstatus; 1358 int actlen; 1359 1360 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1361 #ifdef DIAGNOSTIC 1362 { 1363 int s = splhigh(); 1364 if (ii->isdone) { 1365 splx(s); 1366 #ifdef UHCI_DEBUG 1367 printf("uhci_idone: ii is done!\n "); 1368 uhci_dump_ii(ii); 1369 #else 1370 printf("uhci_idone: ii=%p is done!\n", ii); 1371 #endif 1372 return; 1373 } 1374 ii->isdone = 1; 1375 splx(s); 1376 } 1377 #endif 1378 1379 if (xfer->nframes != 0) { 1380 /* Isoc transfer, do things differently. */ 1381 uhci_soft_td_t **stds = upipe->u.iso.stds; 1382 int i, n, nframes, len; 1383 1384 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1385 1386 nframes = xfer->nframes; 1387 actlen = 0; 1388 n = UXFER(xfer)->curframe; 1389 for (i = 0; i < nframes; i++) { 1390 std = stds[n]; 1391 #ifdef UHCI_DEBUG 1392 if (uhcidebug > 5) { 1393 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1394 uhci_dump_td(std); 1395 } 1396 #endif 1397 if (++n >= UHCI_VFRAMELIST_COUNT) 1398 n = 0; 1399 status = le32toh(std->td.td_status); 1400 len = UHCI_TD_GET_ACTLEN(status); 1401 xfer->frlengths[i] = len; 1402 actlen += len; 1403 } 1404 upipe->u.iso.inuse -= nframes; 1405 xfer->actlen = actlen; 1406 xfer->status = USBD_NORMAL_COMPLETION; 1407 goto end; 1408 } 1409 1410 #ifdef UHCI_DEBUG 1411 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1412 ii, xfer, upipe)); 1413 if (uhcidebug > 10) 1414 uhci_dump_tds(ii->stdstart); 1415 #endif 1416 1417 /* The transfer is done, compute actual length and status. */ 1418 actlen = 0; 1419 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1420 nstatus = le32toh(std->td.td_status); 1421 if (nstatus & UHCI_TD_ACTIVE) 1422 break; 1423 1424 status = nstatus; 1425 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1426 UHCI_TD_PID_SETUP) 1427 actlen += UHCI_TD_GET_ACTLEN(status); 1428 } 1429 /* If there are left over TDs we need to update the toggle. */ 1430 if (std != NULL) 1431 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1432 1433 status &= UHCI_TD_ERROR; 1434 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1435 actlen, status)); 1436 xfer->actlen = actlen; 1437 if (status != 0) { 1438 #ifdef UHCI_DEBUG 1439 char sbuf[128]; 1440 1441 bitmask_snprintf((u_int32_t)status, 1442 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1443 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1444 sbuf, sizeof(sbuf)); 1445 1446 DPRINTFN((status == UHCI_TD_STALLED)*10, 1447 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1448 "status 0x%s\n", 1449 xfer->pipe->device->address, 1450 xfer->pipe->endpoint->edesc->bEndpointAddress, 1451 sbuf)); 1452 #endif 1453 1454 if (status == UHCI_TD_STALLED) 1455 xfer->status = USBD_STALLED; 1456 else 1457 xfer->status = USBD_IOERROR; /* more info XXX */ 1458 } else { 1459 xfer->status = USBD_NORMAL_COMPLETION; 1460 } 1461 1462 end: 1463 usb_transfer_complete(xfer); 1464 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1465 } 1466 1467 /* 1468 * Called when a request does not complete. 1469 */ 1470 void 1471 uhci_timeout(void *addr) 1472 { 1473 uhci_intr_info_t *ii = addr; 1474 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1475 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1476 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1477 1478 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1479 1480 if (sc->sc_dying) { 1481 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1482 return; 1483 } 1484 1485 /* Execute the abort in a process context. */ 1486 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1487 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1488 } 1489 1490 void 1491 uhci_timeout_task(void *addr) 1492 { 1493 usbd_xfer_handle xfer = addr; 1494 int s; 1495 1496 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1497 1498 s = splusb(); 1499 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1500 splx(s); 1501 } 1502 1503 /* 1504 * Wait here until controller claims to have an interrupt. 1505 * Then call uhci_intr and return. Use timeout to avoid waiting 1506 * too long. 1507 * Only used during boot when interrupts are not enabled yet. 1508 */ 1509 void 1510 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1511 { 1512 int timo = xfer->timeout; 1513 uhci_intr_info_t *ii; 1514 1515 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1516 1517 xfer->status = USBD_IN_PROGRESS; 1518 for (; timo >= 0; timo--) { 1519 usb_delay_ms(&sc->sc_bus, 1); 1520 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1521 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1522 uhci_intr1(sc); 1523 if (xfer->status != USBD_IN_PROGRESS) 1524 return; 1525 } 1526 } 1527 1528 /* Timeout */ 1529 DPRINTF(("uhci_waitintr: timeout\n")); 1530 for (ii = LIST_FIRST(&sc->sc_intrhead); 1531 ii != NULL && ii->xfer != xfer; 1532 ii = LIST_NEXT(ii, list)) 1533 ; 1534 #ifdef DIAGNOSTIC 1535 if (ii == NULL) 1536 panic("uhci_waitintr: lost intr_info"); 1537 #endif 1538 uhci_idone(ii); 1539 } 1540 1541 void 1542 uhci_poll(struct usbd_bus *bus) 1543 { 1544 uhci_softc_t *sc = (uhci_softc_t *)bus; 1545 1546 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1547 uhci_intr1(sc); 1548 } 1549 1550 void 1551 uhci_reset(uhci_softc_t *sc) 1552 { 1553 int n; 1554 1555 UHCICMD(sc, UHCI_CMD_HCRESET); 1556 /* The reset bit goes low when the controller is done. */ 1557 for (n = 0; n < UHCI_RESET_TIMEOUT && 1558 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1559 usb_delay_ms(&sc->sc_bus, 1); 1560 if (n >= UHCI_RESET_TIMEOUT) 1561 printf("%s: controller did not reset\n", 1562 USBDEVNAME(sc->sc_bus.bdev)); 1563 } 1564 1565 usbd_status 1566 uhci_run(uhci_softc_t *sc, int run) 1567 { 1568 int s, n, running; 1569 u_int16_t cmd; 1570 1571 run = run != 0; 1572 s = splhardusb(); 1573 DPRINTF(("uhci_run: setting run=%d\n", run)); 1574 cmd = UREAD2(sc, UHCI_CMD); 1575 if (run) 1576 cmd |= UHCI_CMD_RS; 1577 else 1578 cmd &= ~UHCI_CMD_RS; 1579 UHCICMD(sc, cmd); 1580 for(n = 0; n < 10; n++) { 1581 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1582 /* return when we've entered the state we want */ 1583 if (run == running) { 1584 splx(s); 1585 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1586 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1587 return (USBD_NORMAL_COMPLETION); 1588 } 1589 usb_delay_ms(&sc->sc_bus, 1); 1590 } 1591 splx(s); 1592 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1593 run ? "start" : "stop"); 1594 return (USBD_IOERROR); 1595 } 1596 1597 /* 1598 * Memory management routines. 1599 * uhci_alloc_std allocates TDs 1600 * uhci_alloc_sqh allocates QHs 1601 * These two routines do their own free list management, 1602 * partly for speed, partly because allocating DMAable memory 1603 * has page size granularaity so much memory would be wasted if 1604 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1605 */ 1606 1607 uhci_soft_td_t * 1608 uhci_alloc_std(uhci_softc_t *sc) 1609 { 1610 uhci_soft_td_t *std; 1611 usbd_status err; 1612 int i, offs; 1613 usb_dma_t dma; 1614 1615 if (sc->sc_freetds == NULL) { 1616 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1617 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1618 UHCI_TD_ALIGN, &dma); 1619 if (err) 1620 return (0); 1621 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1622 offs = i * UHCI_STD_SIZE; 1623 std = KERNADDR(&dma, offs); 1624 std->physaddr = DMAADDR(&dma, offs); 1625 std->link.std = sc->sc_freetds; 1626 sc->sc_freetds = std; 1627 } 1628 } 1629 std = sc->sc_freetds; 1630 sc->sc_freetds = std->link.std; 1631 memset(&std->td, 0, sizeof(uhci_td_t)); 1632 return std; 1633 } 1634 1635 void 1636 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1637 { 1638 #ifdef DIAGNOSTIC 1639 #define TD_IS_FREE 0x12345678 1640 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1641 printf("uhci_free_std: freeing free TD %p\n", std); 1642 return; 1643 } 1644 std->td.td_token = htole32(TD_IS_FREE); 1645 #endif 1646 std->link.std = sc->sc_freetds; 1647 sc->sc_freetds = std; 1648 } 1649 1650 uhci_soft_qh_t * 1651 uhci_alloc_sqh(uhci_softc_t *sc) 1652 { 1653 uhci_soft_qh_t *sqh; 1654 usbd_status err; 1655 int i, offs; 1656 usb_dma_t dma; 1657 1658 if (sc->sc_freeqhs == NULL) { 1659 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1660 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1661 UHCI_QH_ALIGN, &dma); 1662 if (err) 1663 return (0); 1664 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1665 offs = i * UHCI_SQH_SIZE; 1666 sqh = KERNADDR(&dma, offs); 1667 sqh->physaddr = DMAADDR(&dma, offs); 1668 sqh->hlink = sc->sc_freeqhs; 1669 sc->sc_freeqhs = sqh; 1670 } 1671 } 1672 sqh = sc->sc_freeqhs; 1673 sc->sc_freeqhs = sqh->hlink; 1674 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1675 return (sqh); 1676 } 1677 1678 void 1679 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1680 { 1681 sqh->hlink = sc->sc_freeqhs; 1682 sc->sc_freeqhs = sqh; 1683 } 1684 1685 void 1686 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1687 uhci_soft_td_t *stdend) 1688 { 1689 uhci_soft_td_t *p; 1690 1691 for (; std != stdend; std = p) { 1692 p = std->link.std; 1693 uhci_free_std(sc, std); 1694 } 1695 } 1696 1697 usbd_status 1698 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1699 int rd, u_int16_t flags, usb_dma_t *dma, 1700 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1701 { 1702 uhci_soft_td_t *p, *lastp; 1703 uhci_physaddr_t lastlink; 1704 int i, ntd, l, tog, maxp; 1705 u_int32_t status; 1706 int addr = upipe->pipe.device->address; 1707 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1708 1709 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1710 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1711 upipe->pipe.device->speed, flags)); 1712 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1713 if (maxp == 0) { 1714 printf("uhci_alloc_std_chain: maxp=0\n"); 1715 return (USBD_INVAL); 1716 } 1717 ntd = (len + maxp - 1) / maxp; 1718 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1719 ntd++; 1720 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1721 if (ntd == 0) { 1722 *sp = *ep = 0; 1723 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1724 return (USBD_NORMAL_COMPLETION); 1725 } 1726 tog = upipe->nexttoggle; 1727 if (ntd % 2 == 0) 1728 tog ^= 1; 1729 upipe->nexttoggle = tog ^ 1; 1730 lastp = NULL; 1731 lastlink = UHCI_PTR_T; 1732 ntd--; 1733 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1734 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1735 status |= UHCI_TD_LS; 1736 if (flags & USBD_SHORT_XFER_OK) 1737 status |= UHCI_TD_SPD; 1738 for (i = ntd; i >= 0; i--) { 1739 p = uhci_alloc_std(sc); 1740 if (p == NULL) { 1741 uhci_free_std_chain(sc, lastp, NULL); 1742 return (USBD_NOMEM); 1743 } 1744 p->link.std = lastp; 1745 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1746 lastp = p; 1747 lastlink = p->physaddr; 1748 p->td.td_status = htole32(status); 1749 if (i == ntd) { 1750 /* last TD */ 1751 l = len % maxp; 1752 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1753 l = maxp; 1754 *ep = p; 1755 } else 1756 l = maxp; 1757 p->td.td_token = 1758 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1759 UHCI_TD_OUT(l, endpt, addr, tog)); 1760 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1761 tog ^= 1; 1762 } 1763 *sp = lastp; 1764 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1765 upipe->nexttoggle)); 1766 return (USBD_NORMAL_COMPLETION); 1767 } 1768 1769 void 1770 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1771 { 1772 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1773 upipe->nexttoggle = 0; 1774 } 1775 1776 void 1777 uhci_noop(usbd_pipe_handle pipe) 1778 { 1779 } 1780 1781 usbd_status 1782 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1783 { 1784 usbd_status err; 1785 1786 /* Insert last in queue. */ 1787 err = usb_insert_transfer(xfer); 1788 if (err) 1789 return (err); 1790 1791 /* 1792 * Pipe isn't running (otherwise err would be USBD_INPROG), 1793 * so start it first. 1794 */ 1795 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1796 } 1797 1798 usbd_status 1799 uhci_device_bulk_start(usbd_xfer_handle xfer) 1800 { 1801 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1802 usbd_device_handle dev = upipe->pipe.device; 1803 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1804 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1805 uhci_soft_td_t *data, *dataend; 1806 uhci_soft_qh_t *sqh; 1807 usbd_status err; 1808 int len, isread, endpt; 1809 int s; 1810 1811 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1812 xfer, xfer->length, xfer->flags)); 1813 1814 if (sc->sc_dying) 1815 return (USBD_IOERROR); 1816 1817 #ifdef DIAGNOSTIC 1818 if (xfer->rqflags & URQ_REQUEST) 1819 panic("uhci_device_bulk_transfer: a request"); 1820 #endif 1821 1822 len = xfer->length; 1823 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1824 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1825 sqh = upipe->u.bulk.sqh; 1826 1827 upipe->u.bulk.isread = isread; 1828 upipe->u.bulk.length = len; 1829 1830 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1831 &xfer->dmabuf, &data, &dataend); 1832 if (err) 1833 return (err); 1834 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1835 1836 #ifdef UHCI_DEBUG 1837 if (uhcidebug > 8) { 1838 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1839 uhci_dump_tds(data); 1840 } 1841 #endif 1842 1843 /* Set up interrupt info. */ 1844 ii->xfer = xfer; 1845 ii->stdstart = data; 1846 ii->stdend = dataend; 1847 #ifdef DIAGNOSTIC 1848 if (!ii->isdone) { 1849 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1850 } 1851 ii->isdone = 0; 1852 #endif 1853 1854 sqh->elink = data; 1855 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1856 1857 s = splusb(); 1858 uhci_add_bulk(sc, sqh); 1859 uhci_add_intr_info(sc, ii); 1860 1861 if (xfer->timeout && !sc->sc_bus.use_polling) { 1862 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1863 uhci_timeout, ii); 1864 } 1865 xfer->status = USBD_IN_PROGRESS; 1866 splx(s); 1867 1868 #ifdef UHCI_DEBUG 1869 if (uhcidebug > 10) { 1870 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1871 uhci_dump_tds(data); 1872 } 1873 #endif 1874 1875 if (sc->sc_bus.use_polling) 1876 uhci_waitintr(sc, xfer); 1877 1878 return (USBD_IN_PROGRESS); 1879 } 1880 1881 /* Abort a device bulk request. */ 1882 void 1883 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1884 { 1885 DPRINTF(("uhci_device_bulk_abort:\n")); 1886 uhci_abort_xfer(xfer, USBD_CANCELLED); 1887 } 1888 1889 /* 1890 * Abort a device request. 1891 * If this routine is called at splusb() it guarantees that the request 1892 * will be removed from the hardware scheduling and that the callback 1893 * for it will be called with USBD_CANCELLED status. 1894 * It's impossible to guarantee that the requested transfer will not 1895 * have happened since the hardware runs concurrently. 1896 * If the transaction has already happened we rely on the ordinary 1897 * interrupt processing to process it. 1898 */ 1899 void 1900 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1901 { 1902 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1903 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1904 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1905 uhci_soft_td_t *std; 1906 int s; 1907 1908 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1909 1910 if (sc->sc_dying) { 1911 /* If we're dying, just do the software part. */ 1912 s = splusb(); 1913 xfer->status = status; /* make software ignore it */ 1914 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1915 usb_transfer_complete(xfer); 1916 splx(s); 1917 } 1918 1919 if (xfer->device->bus->intr_context || !curproc) 1920 panic("uhci_abort_xfer: not in process context"); 1921 1922 /* 1923 * Step 1: Make interrupt routine and hardware ignore xfer. 1924 */ 1925 s = splusb(); 1926 xfer->status = status; /* make software ignore it */ 1927 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1928 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1929 for (std = ii->stdstart; std != NULL; std = std->link.std) 1930 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1931 splx(s); 1932 1933 /* 1934 * Step 2: Wait until we know hardware has finished any possible 1935 * use of the xfer. Also make sure the soft interrupt routine 1936 * has run. 1937 */ 1938 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1939 s = splusb(); 1940 #ifdef USB_USE_SOFTINTR 1941 sc->sc_softwake = 1; 1942 #endif /* USB_USE_SOFTINTR */ 1943 usb_schedsoftintr(&sc->sc_bus); 1944 #ifdef USB_USE_SOFTINTR 1945 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1946 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1947 #endif /* USB_USE_SOFTINTR */ 1948 splx(s); 1949 1950 /* 1951 * Step 3: Execute callback. 1952 */ 1953 xfer->hcpriv = ii; 1954 1955 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1956 s = splusb(); 1957 #ifdef DIAGNOSTIC 1958 ii->isdone = 1; 1959 #endif 1960 usb_transfer_complete(xfer); 1961 splx(s); 1962 } 1963 1964 /* Close a device bulk pipe. */ 1965 void 1966 uhci_device_bulk_close(usbd_pipe_handle pipe) 1967 { 1968 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1969 usbd_device_handle dev = upipe->pipe.device; 1970 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1971 1972 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1973 } 1974 1975 usbd_status 1976 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1977 { 1978 usbd_status err; 1979 1980 /* Insert last in queue. */ 1981 err = usb_insert_transfer(xfer); 1982 if (err) 1983 return (err); 1984 1985 /* 1986 * Pipe isn't running (otherwise err would be USBD_INPROG), 1987 * so start it first. 1988 */ 1989 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1990 } 1991 1992 usbd_status 1993 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1994 { 1995 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1996 usbd_status err; 1997 1998 if (sc->sc_dying) 1999 return (USBD_IOERROR); 2000 2001 #ifdef DIAGNOSTIC 2002 if (!(xfer->rqflags & URQ_REQUEST)) 2003 panic("uhci_device_ctrl_transfer: not a request"); 2004 #endif 2005 2006 err = uhci_device_request(xfer); 2007 if (err) 2008 return (err); 2009 2010 if (sc->sc_bus.use_polling) 2011 uhci_waitintr(sc, xfer); 2012 return (USBD_IN_PROGRESS); 2013 } 2014 2015 usbd_status 2016 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2017 { 2018 usbd_status err; 2019 2020 /* Insert last in queue. */ 2021 err = usb_insert_transfer(xfer); 2022 if (err) 2023 return (err); 2024 2025 /* 2026 * Pipe isn't running (otherwise err would be USBD_INPROG), 2027 * so start it first. 2028 */ 2029 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2030 } 2031 2032 usbd_status 2033 uhci_device_intr_start(usbd_xfer_handle xfer) 2034 { 2035 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2036 usbd_device_handle dev = upipe->pipe.device; 2037 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2038 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2039 uhci_soft_td_t *data, *dataend; 2040 uhci_soft_qh_t *sqh; 2041 usbd_status err; 2042 int i, s; 2043 2044 if (sc->sc_dying) 2045 return (USBD_IOERROR); 2046 2047 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2048 xfer, xfer->length, xfer->flags)); 2049 2050 #ifdef DIAGNOSTIC 2051 if (xfer->rqflags & URQ_REQUEST) 2052 panic("uhci_device_intr_transfer: a request"); 2053 #endif 2054 2055 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2056 &xfer->dmabuf, &data, &dataend); 2057 if (err) 2058 return (err); 2059 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2060 2061 #ifdef UHCI_DEBUG 2062 if (uhcidebug > 10) { 2063 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2064 uhci_dump_tds(data); 2065 uhci_dump_qh(upipe->u.intr.qhs[0]); 2066 } 2067 #endif 2068 2069 s = splusb(); 2070 /* Set up interrupt info. */ 2071 ii->xfer = xfer; 2072 ii->stdstart = data; 2073 ii->stdend = dataend; 2074 #ifdef DIAGNOSTIC 2075 if (!ii->isdone) { 2076 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2077 } 2078 ii->isdone = 0; 2079 #endif 2080 2081 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2082 upipe->u.intr.qhs[0])); 2083 for (i = 0; i < upipe->u.intr.npoll; i++) { 2084 sqh = upipe->u.intr.qhs[i]; 2085 sqh->elink = data; 2086 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2087 } 2088 uhci_add_intr_info(sc, ii); 2089 xfer->status = USBD_IN_PROGRESS; 2090 splx(s); 2091 2092 #ifdef UHCI_DEBUG 2093 if (uhcidebug > 10) { 2094 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2095 uhci_dump_tds(data); 2096 uhci_dump_qh(upipe->u.intr.qhs[0]); 2097 } 2098 #endif 2099 2100 return (USBD_IN_PROGRESS); 2101 } 2102 2103 /* Abort a device control request. */ 2104 void 2105 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2106 { 2107 DPRINTF(("uhci_device_ctrl_abort:\n")); 2108 uhci_abort_xfer(xfer, USBD_CANCELLED); 2109 } 2110 2111 /* Close a device control pipe. */ 2112 void 2113 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2114 { 2115 } 2116 2117 /* Abort a device interrupt request. */ 2118 void 2119 uhci_device_intr_abort(usbd_xfer_handle xfer) 2120 { 2121 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2122 if (xfer->pipe->intrxfer == xfer) { 2123 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2124 xfer->pipe->intrxfer = NULL; 2125 } 2126 uhci_abort_xfer(xfer, USBD_CANCELLED); 2127 } 2128 2129 /* Close a device interrupt pipe. */ 2130 void 2131 uhci_device_intr_close(usbd_pipe_handle pipe) 2132 { 2133 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2134 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2135 int i, npoll; 2136 int s; 2137 2138 /* Unlink descriptors from controller data structures. */ 2139 npoll = upipe->u.intr.npoll; 2140 s = splusb(); 2141 for (i = 0; i < npoll; i++) 2142 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2143 splx(s); 2144 2145 /* 2146 * We now have to wait for any activity on the physical 2147 * descriptors to stop. 2148 */ 2149 usb_delay_ms(&sc->sc_bus, 2); 2150 2151 for(i = 0; i < npoll; i++) 2152 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2153 free(upipe->u.intr.qhs, M_USBHC); 2154 2155 /* XXX free other resources */ 2156 } 2157 2158 usbd_status 2159 uhci_device_request(usbd_xfer_handle xfer) 2160 { 2161 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2162 usb_device_request_t *req = &xfer->request; 2163 usbd_device_handle dev = upipe->pipe.device; 2164 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2165 int addr = dev->address; 2166 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2167 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2168 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2169 uhci_soft_qh_t *sqh; 2170 int len; 2171 u_int32_t ls; 2172 usbd_status err; 2173 int isread; 2174 int s; 2175 2176 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2177 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2178 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2179 UGETW(req->wIndex), UGETW(req->wLength), 2180 addr, endpt)); 2181 2182 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2183 isread = req->bmRequestType & UT_READ; 2184 len = UGETW(req->wLength); 2185 2186 setup = upipe->u.ctl.setup; 2187 stat = upipe->u.ctl.stat; 2188 sqh = upipe->u.ctl.sqh; 2189 2190 /* Set up data transaction */ 2191 if (len != 0) { 2192 upipe->nexttoggle = 1; 2193 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2194 &xfer->dmabuf, &data, &dataend); 2195 if (err) 2196 return (err); 2197 next = data; 2198 dataend->link.std = stat; 2199 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2200 } else { 2201 next = stat; 2202 } 2203 upipe->u.ctl.length = len; 2204 2205 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2206 2207 setup->link.std = next; 2208 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2209 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2210 UHCI_TD_ACTIVE); 2211 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2212 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2213 2214 stat->link.std = NULL; 2215 stat->td.td_link = htole32(UHCI_PTR_T); 2216 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2217 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2218 stat->td.td_token = 2219 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2220 UHCI_TD_IN (0, endpt, addr, 1)); 2221 stat->td.td_buffer = htole32(0); 2222 2223 #ifdef UHCI_DEBUG 2224 if (uhcidebug > 10) { 2225 DPRINTF(("uhci_device_request: before transfer\n")); 2226 uhci_dump_tds(setup); 2227 } 2228 #endif 2229 2230 /* Set up interrupt info. */ 2231 ii->xfer = xfer; 2232 ii->stdstart = setup; 2233 ii->stdend = stat; 2234 #ifdef DIAGNOSTIC 2235 if (!ii->isdone) { 2236 printf("uhci_device_request: not done, ii=%p\n", ii); 2237 } 2238 ii->isdone = 0; 2239 #endif 2240 2241 sqh->elink = setup; 2242 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2243 2244 s = splusb(); 2245 if (dev->speed == USB_SPEED_LOW) 2246 uhci_add_ls_ctrl(sc, sqh); 2247 else 2248 uhci_add_hs_ctrl(sc, sqh); 2249 uhci_add_intr_info(sc, ii); 2250 #ifdef UHCI_DEBUG 2251 if (uhcidebug > 12) { 2252 uhci_soft_td_t *std; 2253 uhci_soft_qh_t *xqh; 2254 uhci_soft_qh_t *sxqh; 2255 int maxqh = 0; 2256 uhci_physaddr_t link; 2257 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2258 for (std = sc->sc_vframes[0].htd, link = 0; 2259 (link & UHCI_PTR_QH) == 0; 2260 std = std->link.std) { 2261 link = le32toh(std->td.td_link); 2262 uhci_dump_td(std); 2263 } 2264 sxqh = (uhci_soft_qh_t *)std; 2265 uhci_dump_qh(sxqh); 2266 for (xqh = sxqh; 2267 xqh != NULL; 2268 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2269 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2270 uhci_dump_qh(xqh); 2271 } 2272 DPRINTF(("Enqueued QH:\n")); 2273 uhci_dump_qh(sqh); 2274 uhci_dump_tds(sqh->elink); 2275 } 2276 #endif 2277 if (xfer->timeout && !sc->sc_bus.use_polling) { 2278 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2279 uhci_timeout, ii); 2280 } 2281 xfer->status = USBD_IN_PROGRESS; 2282 splx(s); 2283 2284 return (USBD_NORMAL_COMPLETION); 2285 } 2286 2287 usbd_status 2288 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2289 { 2290 usbd_status err; 2291 2292 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2293 2294 /* Put it on our queue, */ 2295 err = usb_insert_transfer(xfer); 2296 2297 /* bail out on error, */ 2298 if (err && err != USBD_IN_PROGRESS) 2299 return (err); 2300 2301 /* XXX should check inuse here */ 2302 2303 /* insert into schedule, */ 2304 uhci_device_isoc_enter(xfer); 2305 2306 /* and start if the pipe wasn't running */ 2307 if (!err) 2308 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2309 2310 return (err); 2311 } 2312 2313 void 2314 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2315 { 2316 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2317 usbd_device_handle dev = upipe->pipe.device; 2318 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2319 struct iso *iso = &upipe->u.iso; 2320 uhci_soft_td_t *std; 2321 u_int32_t buf, len, status; 2322 int s, i, next, nframes; 2323 2324 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2325 "nframes=%d\n", 2326 iso->inuse, iso->next, xfer, xfer->nframes)); 2327 2328 if (sc->sc_dying) 2329 return; 2330 2331 if (xfer->status == USBD_IN_PROGRESS) { 2332 /* This request has already been entered into the frame list */ 2333 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2334 /* XXX */ 2335 } 2336 2337 #ifdef DIAGNOSTIC 2338 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2339 printf("uhci_device_isoc_enter: overflow!\n"); 2340 #endif 2341 2342 next = iso->next; 2343 if (next == -1) { 2344 /* Not in use yet, schedule it a few frames ahead. */ 2345 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2346 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2347 } 2348 2349 xfer->status = USBD_IN_PROGRESS; 2350 UXFER(xfer)->curframe = next; 2351 2352 buf = DMAADDR(&xfer->dmabuf, 0); 2353 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2354 UHCI_TD_ACTIVE | 2355 UHCI_TD_IOS); 2356 nframes = xfer->nframes; 2357 s = splusb(); 2358 for (i = 0; i < nframes; i++) { 2359 std = iso->stds[next]; 2360 if (++next >= UHCI_VFRAMELIST_COUNT) 2361 next = 0; 2362 len = xfer->frlengths[i]; 2363 std->td.td_buffer = htole32(buf); 2364 if (i == nframes - 1) 2365 status |= UHCI_TD_IOC; 2366 std->td.td_status = htole32(status); 2367 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2368 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2369 #ifdef UHCI_DEBUG 2370 if (uhcidebug > 5) { 2371 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2372 uhci_dump_td(std); 2373 } 2374 #endif 2375 buf += len; 2376 } 2377 iso->next = next; 2378 iso->inuse += xfer->nframes; 2379 2380 splx(s); 2381 } 2382 2383 usbd_status 2384 uhci_device_isoc_start(usbd_xfer_handle xfer) 2385 { 2386 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2387 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2388 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2389 uhci_soft_td_t *end; 2390 int s, i; 2391 2392 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2393 2394 if (sc->sc_dying) 2395 return (USBD_IOERROR); 2396 2397 #ifdef DIAGNOSTIC 2398 if (xfer->status != USBD_IN_PROGRESS) 2399 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2400 #endif 2401 2402 /* Find the last TD */ 2403 i = UXFER(xfer)->curframe + xfer->nframes; 2404 if (i >= UHCI_VFRAMELIST_COUNT) 2405 i -= UHCI_VFRAMELIST_COUNT; 2406 end = upipe->u.iso.stds[i]; 2407 2408 #ifdef DIAGNOSTIC 2409 if (end == NULL) { 2410 printf("uhci_device_isoc_start: end == NULL\n"); 2411 return (USBD_INVAL); 2412 } 2413 #endif 2414 2415 s = splusb(); 2416 2417 /* Set up interrupt info. */ 2418 ii->xfer = xfer; 2419 ii->stdstart = end; 2420 ii->stdend = end; 2421 #ifdef DIAGNOSTIC 2422 if (!ii->isdone) 2423 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2424 ii->isdone = 0; 2425 #endif 2426 uhci_add_intr_info(sc, ii); 2427 2428 splx(s); 2429 2430 return (USBD_IN_PROGRESS); 2431 } 2432 2433 void 2434 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2435 { 2436 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2437 uhci_soft_td_t **stds = upipe->u.iso.stds; 2438 uhci_soft_td_t *std; 2439 int i, n, s, nframes, maxlen, len; 2440 2441 s = splusb(); 2442 2443 /* Transfer is already done. */ 2444 if (xfer->status != USBD_NOT_STARTED && 2445 xfer->status != USBD_IN_PROGRESS) { 2446 splx(s); 2447 return; 2448 } 2449 2450 /* Give xfer the requested abort code. */ 2451 xfer->status = USBD_CANCELLED; 2452 2453 /* make hardware ignore it, */ 2454 nframes = xfer->nframes; 2455 n = UXFER(xfer)->curframe; 2456 maxlen = 0; 2457 for (i = 0; i < nframes; i++) { 2458 std = stds[n]; 2459 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2460 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2461 if (len > maxlen) 2462 maxlen = len; 2463 if (++n >= UHCI_VFRAMELIST_COUNT) 2464 n = 0; 2465 } 2466 2467 /* and wait until we are sure the hardware has finished. */ 2468 delay(maxlen); 2469 2470 #ifdef DIAGNOSTIC 2471 UXFER(xfer)->iinfo.isdone = 1; 2472 #endif 2473 /* Run callback and remove from interrupt list. */ 2474 usb_transfer_complete(xfer); 2475 2476 splx(s); 2477 } 2478 2479 void 2480 uhci_device_isoc_close(usbd_pipe_handle pipe) 2481 { 2482 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2483 usbd_device_handle dev = upipe->pipe.device; 2484 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2485 uhci_soft_td_t *std, *vstd; 2486 struct iso *iso; 2487 int i, s; 2488 2489 /* 2490 * Make sure all TDs are marked as inactive. 2491 * Wait for completion. 2492 * Unschedule. 2493 * Deallocate. 2494 */ 2495 iso = &upipe->u.iso; 2496 2497 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2498 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2499 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2500 2501 s = splusb(); 2502 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2503 std = iso->stds[i]; 2504 for (vstd = sc->sc_vframes[i].htd; 2505 vstd != NULL && vstd->link.std != std; 2506 vstd = vstd->link.std) 2507 ; 2508 if (vstd == NULL) { 2509 /*panic*/ 2510 printf("uhci_device_isoc_close: %p not found\n", std); 2511 splx(s); 2512 return; 2513 } 2514 vstd->link = std->link; 2515 vstd->td.td_link = std->td.td_link; 2516 uhci_free_std(sc, std); 2517 } 2518 splx(s); 2519 2520 free(iso->stds, M_USBHC); 2521 } 2522 2523 usbd_status 2524 uhci_setup_isoc(usbd_pipe_handle pipe) 2525 { 2526 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2527 usbd_device_handle dev = upipe->pipe.device; 2528 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2529 int addr = upipe->pipe.device->address; 2530 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2531 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2532 uhci_soft_td_t *std, *vstd; 2533 u_int32_t token; 2534 struct iso *iso; 2535 int i, s; 2536 2537 iso = &upipe->u.iso; 2538 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2539 M_USBHC, M_WAITOK); 2540 2541 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2542 UHCI_TD_OUT(0, endpt, addr, 0); 2543 2544 /* Allocate the TDs and mark as inactive; */ 2545 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2546 std = uhci_alloc_std(sc); 2547 if (std == 0) 2548 goto bad; 2549 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2550 std->td.td_token = htole32(token); 2551 iso->stds[i] = std; 2552 } 2553 2554 /* Insert TDs into schedule. */ 2555 s = splusb(); 2556 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2557 std = iso->stds[i]; 2558 vstd = sc->sc_vframes[i].htd; 2559 std->link = vstd->link; 2560 std->td.td_link = vstd->td.td_link; 2561 vstd->link.std = std; 2562 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2563 } 2564 splx(s); 2565 2566 iso->next = -1; 2567 iso->inuse = 0; 2568 2569 return (USBD_NORMAL_COMPLETION); 2570 2571 bad: 2572 while (--i >= 0) 2573 uhci_free_std(sc, iso->stds[i]); 2574 free(iso->stds, M_USBHC); 2575 return (USBD_NOMEM); 2576 } 2577 2578 void 2579 uhci_device_isoc_done(usbd_xfer_handle xfer) 2580 { 2581 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2582 2583 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2584 2585 if (ii->xfer != xfer) 2586 /* Not on interrupt list, ignore it. */ 2587 return; 2588 2589 #ifdef DIAGNOSTIC 2590 if (xfer->busy_free != XFER_BUSY) { 2591 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2592 xfer, xfer->busy_free); 2593 return; 2594 } 2595 2596 if (ii->stdend == NULL) { 2597 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2598 #ifdef UHCI_DEBUG 2599 uhci_dump_ii(ii); 2600 #endif 2601 return; 2602 } 2603 #endif 2604 2605 /* Turn off the interrupt since it is active even if the TD is not. */ 2606 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2607 2608 uhci_del_intr_info(ii); /* remove from active list */ 2609 } 2610 2611 void 2612 uhci_device_intr_done(usbd_xfer_handle xfer) 2613 { 2614 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2615 uhci_softc_t *sc = ii->sc; 2616 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2617 uhci_soft_qh_t *sqh; 2618 int i, npoll; 2619 2620 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2621 2622 npoll = upipe->u.intr.npoll; 2623 for(i = 0; i < npoll; i++) { 2624 sqh = upipe->u.intr.qhs[i]; 2625 sqh->elink = NULL; 2626 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2627 } 2628 uhci_free_std_chain(sc, ii->stdstart, NULL); 2629 2630 /* XXX Wasteful. */ 2631 if (xfer->pipe->repeat) { 2632 uhci_soft_td_t *data, *dataend; 2633 2634 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2635 2636 /* This alloc cannot fail since we freed the chain above. */ 2637 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2638 &xfer->dmabuf, &data, &dataend); 2639 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2640 2641 #ifdef UHCI_DEBUG 2642 if (uhcidebug > 10) { 2643 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2644 uhci_dump_tds(data); 2645 uhci_dump_qh(upipe->u.intr.qhs[0]); 2646 } 2647 #endif 2648 2649 ii->stdstart = data; 2650 ii->stdend = dataend; 2651 #ifdef DIAGNOSTIC 2652 if (!ii->isdone) { 2653 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2654 } 2655 ii->isdone = 0; 2656 #endif 2657 for (i = 0; i < npoll; i++) { 2658 sqh = upipe->u.intr.qhs[i]; 2659 sqh->elink = data; 2660 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2661 } 2662 xfer->status = USBD_IN_PROGRESS; 2663 /* The ii is already on the examined list, just leave it. */ 2664 } else { 2665 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2666 uhci_del_intr_info(ii); 2667 } 2668 } 2669 2670 /* Deallocate request data structures */ 2671 void 2672 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2673 { 2674 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2675 uhci_softc_t *sc = ii->sc; 2676 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2677 2678 #ifdef DIAGNOSTIC 2679 if (!(xfer->rqflags & URQ_REQUEST)) 2680 panic("uhci_ctrl_done: not a request"); 2681 #endif 2682 2683 uhci_del_intr_info(ii); /* remove from active list */ 2684 2685 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2686 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2687 else 2688 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2689 2690 if (upipe->u.ctl.length != 0) 2691 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2692 2693 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2694 } 2695 2696 /* Deallocate request data structures */ 2697 void 2698 uhci_device_bulk_done(usbd_xfer_handle xfer) 2699 { 2700 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2701 uhci_softc_t *sc = ii->sc; 2702 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2703 2704 uhci_del_intr_info(ii); /* remove from active list */ 2705 2706 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2707 2708 uhci_free_std_chain(sc, ii->stdstart, NULL); 2709 2710 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2711 } 2712 2713 /* Add interrupt QH, called with vflock. */ 2714 void 2715 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2716 { 2717 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2718 uhci_soft_qh_t *eqh; 2719 2720 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2721 2722 eqh = vf->eqh; 2723 sqh->hlink = eqh->hlink; 2724 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2725 eqh->hlink = sqh; 2726 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2727 vf->eqh = sqh; 2728 vf->bandwidth++; 2729 } 2730 2731 /* Remove interrupt QH. */ 2732 void 2733 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2734 { 2735 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2736 uhci_soft_qh_t *pqh; 2737 2738 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2739 2740 /* See comment in uhci_remove_ctrl() */ 2741 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2742 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2743 delay(UHCI_QH_REMOVE_DELAY); 2744 } 2745 2746 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2747 pqh->hlink = sqh->hlink; 2748 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2749 delay(UHCI_QH_REMOVE_DELAY); 2750 if (vf->eqh == sqh) 2751 vf->eqh = pqh; 2752 vf->bandwidth--; 2753 } 2754 2755 usbd_status 2756 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2757 { 2758 uhci_soft_qh_t *sqh; 2759 int i, npoll, s; 2760 u_int bestbw, bw, bestoffs, offs; 2761 2762 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2763 if (ival == 0) { 2764 printf("uhci_setintr: 0 interval\n"); 2765 return (USBD_INVAL); 2766 } 2767 2768 if (ival > UHCI_VFRAMELIST_COUNT) 2769 ival = UHCI_VFRAMELIST_COUNT; 2770 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2771 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2772 2773 upipe->u.intr.npoll = npoll; 2774 upipe->u.intr.qhs = 2775 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2776 2777 /* 2778 * Figure out which offset in the schedule that has most 2779 * bandwidth left over. 2780 */ 2781 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2782 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2783 for (bw = i = 0; i < npoll; i++) 2784 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2785 if (bw < bestbw) { 2786 bestbw = bw; 2787 bestoffs = offs; 2788 } 2789 } 2790 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2791 2792 for(i = 0; i < npoll; i++) { 2793 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2794 sqh->elink = NULL; 2795 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2796 sqh->pos = MOD(i * ival + bestoffs); 2797 } 2798 #undef MOD 2799 2800 s = splusb(); 2801 /* Enter QHs into the controller data structures. */ 2802 for(i = 0; i < npoll; i++) 2803 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2804 splx(s); 2805 2806 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2807 return (USBD_NORMAL_COMPLETION); 2808 } 2809 2810 /* Open a new pipe. */ 2811 usbd_status 2812 uhci_open(usbd_pipe_handle pipe) 2813 { 2814 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2815 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2816 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2817 usbd_status err; 2818 int ival; 2819 2820 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2821 pipe, pipe->device->address, 2822 ed->bEndpointAddress, sc->sc_addr)); 2823 2824 upipe->aborting = 0; 2825 upipe->nexttoggle = 0; 2826 2827 if (pipe->device->address == sc->sc_addr) { 2828 switch (ed->bEndpointAddress) { 2829 case USB_CONTROL_ENDPOINT: 2830 pipe->methods = &uhci_root_ctrl_methods; 2831 break; 2832 case UE_DIR_IN | UHCI_INTR_ENDPT: 2833 pipe->methods = &uhci_root_intr_methods; 2834 break; 2835 default: 2836 return (USBD_INVAL); 2837 } 2838 } else { 2839 switch (ed->bmAttributes & UE_XFERTYPE) { 2840 case UE_CONTROL: 2841 pipe->methods = &uhci_device_ctrl_methods; 2842 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2843 if (upipe->u.ctl.sqh == NULL) 2844 goto bad; 2845 upipe->u.ctl.setup = uhci_alloc_std(sc); 2846 if (upipe->u.ctl.setup == NULL) { 2847 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2848 goto bad; 2849 } 2850 upipe->u.ctl.stat = uhci_alloc_std(sc); 2851 if (upipe->u.ctl.stat == NULL) { 2852 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2853 uhci_free_std(sc, upipe->u.ctl.setup); 2854 goto bad; 2855 } 2856 err = usb_allocmem(&sc->sc_bus, 2857 sizeof(usb_device_request_t), 2858 0, &upipe->u.ctl.reqdma); 2859 if (err) { 2860 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2861 uhci_free_std(sc, upipe->u.ctl.setup); 2862 uhci_free_std(sc, upipe->u.ctl.stat); 2863 goto bad; 2864 } 2865 break; 2866 case UE_INTERRUPT: 2867 pipe->methods = &uhci_device_intr_methods; 2868 ival = pipe->interval; 2869 if (ival == USBD_DEFAULT_INTERVAL) 2870 ival = ed->bInterval; 2871 return (uhci_device_setintr(sc, upipe, ival)); 2872 case UE_ISOCHRONOUS: 2873 pipe->methods = &uhci_device_isoc_methods; 2874 return (uhci_setup_isoc(pipe)); 2875 case UE_BULK: 2876 pipe->methods = &uhci_device_bulk_methods; 2877 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2878 if (upipe->u.bulk.sqh == NULL) 2879 goto bad; 2880 break; 2881 } 2882 } 2883 return (USBD_NORMAL_COMPLETION); 2884 2885 bad: 2886 return (USBD_NOMEM); 2887 } 2888 2889 /* 2890 * Data structures and routines to emulate the root hub. 2891 */ 2892 usb_device_descriptor_t uhci_devd = { 2893 USB_DEVICE_DESCRIPTOR_SIZE, 2894 UDESC_DEVICE, /* type */ 2895 {0x00, 0x01}, /* USB version */ 2896 UDCLASS_HUB, /* class */ 2897 UDSUBCLASS_HUB, /* subclass */ 2898 UDPROTO_FSHUB, /* protocol */ 2899 64, /* max packet */ 2900 {0},{0},{0x00,0x01}, /* device id */ 2901 1,2,0, /* string indicies */ 2902 1 /* # of configurations */ 2903 }; 2904 2905 usb_config_descriptor_t uhci_confd = { 2906 USB_CONFIG_DESCRIPTOR_SIZE, 2907 UDESC_CONFIG, 2908 {USB_CONFIG_DESCRIPTOR_SIZE + 2909 USB_INTERFACE_DESCRIPTOR_SIZE + 2910 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2911 1, 2912 1, 2913 0, 2914 UC_SELF_POWERED, 2915 0 /* max power */ 2916 }; 2917 2918 usb_interface_descriptor_t uhci_ifcd = { 2919 USB_INTERFACE_DESCRIPTOR_SIZE, 2920 UDESC_INTERFACE, 2921 0, 2922 0, 2923 1, 2924 UICLASS_HUB, 2925 UISUBCLASS_HUB, 2926 UIPROTO_FSHUB, 2927 0 2928 }; 2929 2930 usb_endpoint_descriptor_t uhci_endpd = { 2931 USB_ENDPOINT_DESCRIPTOR_SIZE, 2932 UDESC_ENDPOINT, 2933 UE_DIR_IN | UHCI_INTR_ENDPT, 2934 UE_INTERRUPT, 2935 {8}, 2936 255 2937 }; 2938 2939 usb_hub_descriptor_t uhci_hubd_piix = { 2940 USB_HUB_DESCRIPTOR_SIZE, 2941 UDESC_HUB, 2942 2, 2943 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2944 50, /* power on to power good */ 2945 0, 2946 { 0x00 }, /* both ports are removable */ 2947 }; 2948 2949 int 2950 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2951 { 2952 int i; 2953 2954 if (l == 0) 2955 return (0); 2956 p->bLength = 2 * strlen(s) + 2; 2957 if (l == 1) 2958 return (1); 2959 p->bDescriptorType = UDESC_STRING; 2960 l -= 2; 2961 for (i = 0; s[i] && l > 1; i++, l -= 2) 2962 USETW2(p->bString[i], 0, s[i]); 2963 return (2*i+2); 2964 } 2965 2966 /* 2967 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2968 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2969 * should not be used by the USB subsystem. As we cannot issue a 2970 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2971 * will be enabled as part of the reset. 2972 * 2973 * On the VT83C572, the port cannot be successfully enabled until the 2974 * outstanding "port enable change" and "connection status change" 2975 * events have been reset. 2976 */ 2977 Static usbd_status 2978 uhci_portreset(uhci_softc_t *sc, int index) 2979 { 2980 int lim, port, x; 2981 2982 if (index == 1) 2983 port = UHCI_PORTSC1; 2984 else if (index == 2) 2985 port = UHCI_PORTSC2; 2986 else 2987 return (USBD_IOERROR); 2988 2989 x = URWMASK(UREAD2(sc, port)); 2990 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2991 2992 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 2993 2994 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 2995 index, UREAD2(sc, port))); 2996 2997 x = URWMASK(UREAD2(sc, port)); 2998 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2999 3000 delay(100); 3001 3002 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3003 index, UREAD2(sc, port))); 3004 3005 x = URWMASK(UREAD2(sc, port)); 3006 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3007 3008 for (lim = 10; --lim > 0;) { 3009 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3010 3011 x = UREAD2(sc, port); 3012 3013 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3014 index, lim, x)); 3015 3016 if (!(x & UHCI_PORTSC_CCS)) { 3017 /* 3018 * No device is connected (or was disconnected 3019 * during reset). Consider the port reset. 3020 * The delay must be long enough to ensure on 3021 * the initial iteration that the device 3022 * connection will have been registered. 50ms 3023 * appears to be sufficient, but 20ms is not. 3024 */ 3025 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3026 index, lim)); 3027 break; 3028 } 3029 3030 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3031 /* 3032 * Port enabled changed and/or connection 3033 * status changed were set. Reset either or 3034 * both raised flags (by writing a 1 to that 3035 * bit), and wait again for state to settle. 3036 */ 3037 UWRITE2(sc, port, URWMASK(x) | 3038 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3039 continue; 3040 } 3041 3042 if (x & UHCI_PORTSC_PE) 3043 /* Port is enabled */ 3044 break; 3045 3046 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3047 } 3048 3049 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3050 index, UREAD2(sc, port))); 3051 3052 if (lim <= 0) { 3053 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3054 return (USBD_TIMEOUT); 3055 } 3056 3057 sc->sc_isreset = 1; 3058 return (USBD_NORMAL_COMPLETION); 3059 } 3060 3061 /* 3062 * Simulate a hardware hub by handling all the necessary requests. 3063 */ 3064 usbd_status 3065 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3066 { 3067 usbd_status err; 3068 3069 /* Insert last in queue. */ 3070 err = usb_insert_transfer(xfer); 3071 if (err) 3072 return (err); 3073 3074 /* 3075 * Pipe isn't running (otherwise err would be USBD_INPROG), 3076 * so start it first. 3077 */ 3078 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3079 } 3080 3081 usbd_status 3082 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3083 { 3084 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3085 usb_device_request_t *req; 3086 void *buf = NULL; 3087 int port, x; 3088 int s, len, value, index, status, change, l, totlen = 0; 3089 usb_port_status_t ps; 3090 usbd_status err; 3091 3092 if (sc->sc_dying) 3093 return (USBD_IOERROR); 3094 3095 #ifdef DIAGNOSTIC 3096 if (!(xfer->rqflags & URQ_REQUEST)) 3097 panic("uhci_root_ctrl_transfer: not a request"); 3098 #endif 3099 req = &xfer->request; 3100 3101 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3102 req->bmRequestType, req->bRequest)); 3103 3104 len = UGETW(req->wLength); 3105 value = UGETW(req->wValue); 3106 index = UGETW(req->wIndex); 3107 3108 if (len != 0) 3109 buf = KERNADDR(&xfer->dmabuf, 0); 3110 3111 #define C(x,y) ((x) | ((y) << 8)) 3112 switch(C(req->bRequest, req->bmRequestType)) { 3113 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3114 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3115 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3116 /* 3117 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3118 * for the integrated root hub. 3119 */ 3120 break; 3121 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3122 if (len > 0) { 3123 *(u_int8_t *)buf = sc->sc_conf; 3124 totlen = 1; 3125 } 3126 break; 3127 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3128 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3129 switch(value >> 8) { 3130 case UDESC_DEVICE: 3131 if ((value & 0xff) != 0) { 3132 err = USBD_IOERROR; 3133 goto ret; 3134 } 3135 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3136 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3137 memcpy(buf, &uhci_devd, l); 3138 break; 3139 case UDESC_CONFIG: 3140 if ((value & 0xff) != 0) { 3141 err = USBD_IOERROR; 3142 goto ret; 3143 } 3144 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3145 memcpy(buf, &uhci_confd, l); 3146 buf = (char *)buf + l; 3147 len -= l; 3148 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3149 totlen += l; 3150 memcpy(buf, &uhci_ifcd, l); 3151 buf = (char *)buf + l; 3152 len -= l; 3153 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3154 totlen += l; 3155 memcpy(buf, &uhci_endpd, l); 3156 break; 3157 case UDESC_STRING: 3158 if (len == 0) 3159 break; 3160 *(u_int8_t *)buf = 0; 3161 totlen = 1; 3162 switch (value & 0xff) { 3163 case 1: /* Vendor */ 3164 totlen = uhci_str(buf, len, sc->sc_vendor); 3165 break; 3166 case 2: /* Product */ 3167 totlen = uhci_str(buf, len, "UHCI root hub"); 3168 break; 3169 } 3170 break; 3171 default: 3172 err = USBD_IOERROR; 3173 goto ret; 3174 } 3175 break; 3176 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3177 if (len > 0) { 3178 *(u_int8_t *)buf = 0; 3179 totlen = 1; 3180 } 3181 break; 3182 case C(UR_GET_STATUS, UT_READ_DEVICE): 3183 if (len > 1) { 3184 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3185 totlen = 2; 3186 } 3187 break; 3188 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3189 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3190 if (len > 1) { 3191 USETW(((usb_status_t *)buf)->wStatus, 0); 3192 totlen = 2; 3193 } 3194 break; 3195 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3196 if (value >= USB_MAX_DEVICES) { 3197 err = USBD_IOERROR; 3198 goto ret; 3199 } 3200 sc->sc_addr = value; 3201 break; 3202 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3203 if (value != 0 && value != 1) { 3204 err = USBD_IOERROR; 3205 goto ret; 3206 } 3207 sc->sc_conf = value; 3208 break; 3209 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3210 break; 3211 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3212 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3213 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3214 err = USBD_IOERROR; 3215 goto ret; 3216 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3217 break; 3218 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3219 break; 3220 /* Hub requests */ 3221 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3222 break; 3223 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3224 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3225 "port=%d feature=%d\n", 3226 index, value)); 3227 if (index == 1) 3228 port = UHCI_PORTSC1; 3229 else if (index == 2) 3230 port = UHCI_PORTSC2; 3231 else { 3232 err = USBD_IOERROR; 3233 goto ret; 3234 } 3235 switch(value) { 3236 case UHF_PORT_ENABLE: 3237 x = URWMASK(UREAD2(sc, port)); 3238 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3239 break; 3240 case UHF_PORT_SUSPEND: 3241 x = URWMASK(UREAD2(sc, port)); 3242 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3243 break; 3244 case UHF_PORT_RESET: 3245 x = URWMASK(UREAD2(sc, port)); 3246 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3247 break; 3248 case UHF_C_PORT_CONNECTION: 3249 x = URWMASK(UREAD2(sc, port)); 3250 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3251 break; 3252 case UHF_C_PORT_ENABLE: 3253 x = URWMASK(UREAD2(sc, port)); 3254 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3255 break; 3256 case UHF_C_PORT_OVER_CURRENT: 3257 x = URWMASK(UREAD2(sc, port)); 3258 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3259 break; 3260 case UHF_C_PORT_RESET: 3261 sc->sc_isreset = 0; 3262 err = USBD_NORMAL_COMPLETION; 3263 goto ret; 3264 case UHF_PORT_CONNECTION: 3265 case UHF_PORT_OVER_CURRENT: 3266 case UHF_PORT_POWER: 3267 case UHF_PORT_LOW_SPEED: 3268 case UHF_C_PORT_SUSPEND: 3269 default: 3270 err = USBD_IOERROR; 3271 goto ret; 3272 } 3273 break; 3274 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3275 if (index == 1) 3276 port = UHCI_PORTSC1; 3277 else if (index == 2) 3278 port = UHCI_PORTSC2; 3279 else { 3280 err = USBD_IOERROR; 3281 goto ret; 3282 } 3283 if (len > 0) { 3284 *(u_int8_t *)buf = 3285 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3286 UHCI_PORTSC_LS_SHIFT; 3287 totlen = 1; 3288 } 3289 break; 3290 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3291 if (value != 0) { 3292 err = USBD_IOERROR; 3293 goto ret; 3294 } 3295 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3296 totlen = l; 3297 memcpy(buf, &uhci_hubd_piix, l); 3298 break; 3299 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3300 if (len != 4) { 3301 err = USBD_IOERROR; 3302 goto ret; 3303 } 3304 memset(buf, 0, len); 3305 totlen = len; 3306 break; 3307 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3308 if (index == 1) 3309 port = UHCI_PORTSC1; 3310 else if (index == 2) 3311 port = UHCI_PORTSC2; 3312 else { 3313 err = USBD_IOERROR; 3314 goto ret; 3315 } 3316 if (len != 4) { 3317 err = USBD_IOERROR; 3318 goto ret; 3319 } 3320 x = UREAD2(sc, port); 3321 status = change = 0; 3322 if (x & UHCI_PORTSC_CCS) 3323 status |= UPS_CURRENT_CONNECT_STATUS; 3324 if (x & UHCI_PORTSC_CSC) 3325 change |= UPS_C_CONNECT_STATUS; 3326 if (x & UHCI_PORTSC_PE) 3327 status |= UPS_PORT_ENABLED; 3328 if (x & UHCI_PORTSC_POEDC) 3329 change |= UPS_C_PORT_ENABLED; 3330 if (x & UHCI_PORTSC_OCI) 3331 status |= UPS_OVERCURRENT_INDICATOR; 3332 if (x & UHCI_PORTSC_OCIC) 3333 change |= UPS_C_OVERCURRENT_INDICATOR; 3334 if (x & UHCI_PORTSC_SUSP) 3335 status |= UPS_SUSPEND; 3336 if (x & UHCI_PORTSC_LSDA) 3337 status |= UPS_LOW_SPEED; 3338 status |= UPS_PORT_POWER; 3339 if (sc->sc_isreset) 3340 change |= UPS_C_PORT_RESET; 3341 USETW(ps.wPortStatus, status); 3342 USETW(ps.wPortChange, change); 3343 l = min(len, sizeof ps); 3344 memcpy(buf, &ps, l); 3345 totlen = l; 3346 break; 3347 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3348 err = USBD_IOERROR; 3349 goto ret; 3350 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3351 break; 3352 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3353 if (index == 1) 3354 port = UHCI_PORTSC1; 3355 else if (index == 2) 3356 port = UHCI_PORTSC2; 3357 else { 3358 err = USBD_IOERROR; 3359 goto ret; 3360 } 3361 switch(value) { 3362 case UHF_PORT_ENABLE: 3363 x = URWMASK(UREAD2(sc, port)); 3364 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3365 break; 3366 case UHF_PORT_SUSPEND: 3367 x = URWMASK(UREAD2(sc, port)); 3368 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3369 break; 3370 case UHF_PORT_RESET: 3371 err = uhci_portreset(sc, index); 3372 goto ret; 3373 case UHF_PORT_POWER: 3374 /* Pretend we turned on power */ 3375 err = USBD_NORMAL_COMPLETION; 3376 goto ret; 3377 case UHF_C_PORT_CONNECTION: 3378 case UHF_C_PORT_ENABLE: 3379 case UHF_C_PORT_OVER_CURRENT: 3380 case UHF_PORT_CONNECTION: 3381 case UHF_PORT_OVER_CURRENT: 3382 case UHF_PORT_LOW_SPEED: 3383 case UHF_C_PORT_SUSPEND: 3384 case UHF_C_PORT_RESET: 3385 default: 3386 err = USBD_IOERROR; 3387 goto ret; 3388 } 3389 break; 3390 default: 3391 err = USBD_IOERROR; 3392 goto ret; 3393 } 3394 xfer->actlen = totlen; 3395 err = USBD_NORMAL_COMPLETION; 3396 ret: 3397 xfer->status = err; 3398 s = splusb(); 3399 usb_transfer_complete(xfer); 3400 splx(s); 3401 return (USBD_IN_PROGRESS); 3402 } 3403 3404 /* Abort a root control request. */ 3405 void 3406 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3407 { 3408 /* Nothing to do, all transfers are synchronous. */ 3409 } 3410 3411 /* Close the root pipe. */ 3412 void 3413 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3414 { 3415 DPRINTF(("uhci_root_ctrl_close\n")); 3416 } 3417 3418 /* Abort a root interrupt request. */ 3419 void 3420 uhci_root_intr_abort(usbd_xfer_handle xfer) 3421 { 3422 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3423 3424 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3425 sc->sc_intr_xfer = NULL; 3426 3427 if (xfer->pipe->intrxfer == xfer) { 3428 DPRINTF(("uhci_root_intr_abort: remove\n")); 3429 xfer->pipe->intrxfer = 0; 3430 } 3431 xfer->status = USBD_CANCELLED; 3432 #ifdef DIAGNOSTIC 3433 UXFER(xfer)->iinfo.isdone = 1; 3434 #endif 3435 usb_transfer_complete(xfer); 3436 } 3437 3438 usbd_status 3439 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3440 { 3441 usbd_status err; 3442 3443 /* Insert last in queue. */ 3444 err = usb_insert_transfer(xfer); 3445 if (err) 3446 return (err); 3447 3448 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3449 * start first 3450 */ 3451 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3452 } 3453 3454 /* Start a transfer on the root interrupt pipe */ 3455 usbd_status 3456 uhci_root_intr_start(usbd_xfer_handle xfer) 3457 { 3458 usbd_pipe_handle pipe = xfer->pipe; 3459 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3460 3461 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3462 xfer, xfer->length, xfer->flags)); 3463 3464 if (sc->sc_dying) 3465 return (USBD_IOERROR); 3466 3467 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3468 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3469 sc->sc_intr_xfer = xfer; 3470 return (USBD_IN_PROGRESS); 3471 } 3472 3473 /* Close the root interrupt pipe. */ 3474 void 3475 uhci_root_intr_close(usbd_pipe_handle pipe) 3476 { 3477 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3478 3479 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3480 sc->sc_intr_xfer = NULL; 3481 DPRINTF(("uhci_root_intr_close\n")); 3482 } 3483
Indexes created Tue Sep 30 20:09:53 GMT 2025