1 /* $OpenBSD: uhci.c,v 1.23 2002/01/10 00:46:36 nordin Exp $ */ 2 /* $NetBSD: uhci.c,v 1.142 2001/10/25 02:08:13 augustss Exp $ */ 3 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 4 5 /* 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Lennart Augustsson (lennart@augustsson.net) at 11 * Carlstedt Research & Technology. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the NetBSD 24 * Foundation, Inc. and its contributors. 25 * 4. Neither the name of The NetBSD Foundation nor the names of its 26 * contributors may be used to endorse or promote products derived 27 * from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 /* 43 * USB Universal Host Controller driver. 44 * Handles e.g. PIIX3 and PIIX4. 45 * 46 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 47 * USB spec: http://www.usb.org/developers/data/usbspec.zip 48 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 49 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 50 */ 51 52 #include <sys/param.h> 53 #include <sys/systm.h> 54 #include <sys/kernel.h> 55 #include <sys/malloc.h> 56 #if defined(__NetBSD__) || defined(__OpenBSD__) 57 #include <sys/device.h> 58 #include <sys/select.h> 59 #elif defined(__FreeBSD__) 60 #include <sys/module.h> 61 #include <sys/bus.h> 62 #include <machine/bus_pio.h> 63 #if defined(DIAGNOSTIC) && defined(__i386__) 64 #include <machine/cpu.h> 65 #endif 66 #endif 67 #include <sys/proc.h> 68 #include <sys/queue.h> 69 70 #include <machine/bus.h> 71 #include <machine/endian.h> 72 73 #include <dev/usb/usb.h> 74 #include <dev/usb/usbdi.h> 75 #include <dev/usb/usbdivar.h> 76 #include <dev/usb/usb_mem.h> 77 #include <dev/usb/usb_quirks.h> 78 79 #include <dev/usb/uhcireg.h> 80 #include <dev/usb/uhcivar.h> 81 82 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 83 /*#define UHCI_CTL_LOOP */ 84 85 #if defined(__FreeBSD__) 86 #include <machine/clock.h> 87 88 #define delay(d) DELAY(d) 89 #endif 90 91 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 92 93 #if defined(__OpenBSD__) 94 struct cfdriver uhci_cd = { 95 NULL, "uhci", DV_DULL 96 }; 97 #endif 98 99 #ifdef UHCI_DEBUG 100 uhci_softc_t *thesc; 101 #define DPRINTF(x) if (uhcidebug) printf x 102 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 103 int uhcidebug = 0; 104 int uhcinoloop = 0; 105 #ifndef __NetBSD__ 106 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 107 #endif 108 #else 109 #define DPRINTF(x) 110 #define DPRINTFN(n,x) 111 #endif 112 113 /* 114 * The UHCI controller is little endian, so on big endian machines 115 * the data strored in memory needs to be swapped. 116 */ 117 #if defined(__FreeBSD__) 118 #if BYTE_ORDER == BIG_ENDIAN 119 #define htole32(x) (bswap32(x)) 120 #define le32toh(x) (bswap32(x)) 121 #else 122 #define htole32(x) (x) 123 #define le32toh(x) (x) 124 #endif 125 #endif 126 127 struct uhci_pipe { 128 struct usbd_pipe pipe; 129 int nexttoggle; 130 131 u_char aborting; 132 usbd_xfer_handle abortstart, abortend; 133 134 /* Info needed for different pipe kinds. */ 135 union { 136 /* Control pipe */ 137 struct { 138 uhci_soft_qh_t *sqh; 139 usb_dma_t reqdma; 140 uhci_soft_td_t *setup, *stat; 141 u_int length; 142 } ctl; 143 /* Interrupt pipe */ 144 struct { 145 int npoll; 146 uhci_soft_qh_t **qhs; 147 } intr; 148 /* Bulk pipe */ 149 struct { 150 uhci_soft_qh_t *sqh; 151 u_int length; 152 int isread; 153 } bulk; 154 /* Iso pipe */ 155 struct iso { 156 uhci_soft_td_t **stds; 157 int next, inuse; 158 } iso; 159 } u; 160 }; 161 162 Static void uhci_globalreset(uhci_softc_t *); 163 Static void uhci_reset(uhci_softc_t *); 164 Static void uhci_shutdown(void *v); 165 Static void uhci_power(int, void *); 166 Static usbd_status uhci_run(uhci_softc_t *, int run); 167 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 168 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 169 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 170 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 171 #if 0 172 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 173 uhci_intr_info_t *); 174 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 175 #endif 176 177 Static void uhci_free_std_chain(uhci_softc_t *, 178 uhci_soft_td_t *, uhci_soft_td_t *); 179 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 180 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 181 uhci_soft_td_t **, uhci_soft_td_t **); 182 Static void uhci_poll_hub(void *); 183 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 184 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 185 Static void uhci_idone(uhci_intr_info_t *); 186 187 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 188 189 Static void uhci_timeout(void *); 190 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 191 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 192 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 193 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 194 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 195 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 196 Static int uhci_str(usb_string_descriptor_t *, int, char *); 197 Static void uhci_add_loop(uhci_softc_t *sc); 198 Static void uhci_rem_loop(uhci_softc_t *sc); 199 200 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 201 Static void uhci_device_isoc_enter(usbd_xfer_handle); 202 203 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 204 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 205 206 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 207 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 208 209 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 210 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 211 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 212 Static void uhci_device_ctrl_close(usbd_pipe_handle); 213 Static void uhci_device_ctrl_done(usbd_xfer_handle); 214 215 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 216 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 217 Static void uhci_device_intr_abort(usbd_xfer_handle); 218 Static void uhci_device_intr_close(usbd_pipe_handle); 219 Static void uhci_device_intr_done(usbd_xfer_handle); 220 221 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 222 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 223 Static void uhci_device_bulk_abort(usbd_xfer_handle); 224 Static void uhci_device_bulk_close(usbd_pipe_handle); 225 Static void uhci_device_bulk_done(usbd_xfer_handle); 226 227 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 228 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 229 Static void uhci_device_isoc_abort(usbd_xfer_handle); 230 Static void uhci_device_isoc_close(usbd_pipe_handle); 231 Static void uhci_device_isoc_done(usbd_xfer_handle); 232 233 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 234 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 235 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 236 Static void uhci_root_ctrl_close(usbd_pipe_handle); 237 Static void uhci_root_ctrl_done(usbd_xfer_handle); 238 239 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 240 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 241 Static void uhci_root_intr_abort(usbd_xfer_handle); 242 Static void uhci_root_intr_close(usbd_pipe_handle); 243 Static void uhci_root_intr_done(usbd_xfer_handle); 244 245 Static usbd_status uhci_open(usbd_pipe_handle); 246 Static void uhci_poll(struct usbd_bus *); 247 Static void uhci_softintr(void *); 248 249 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 250 251 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 252 Static void uhci_remove_intr(uhci_softc_t*, uhci_soft_qh_t*); 253 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 254 struct uhci_pipe *pipe, int ival); 255 256 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 257 Static void uhci_noop(usbd_pipe_handle pipe); 258 259 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 260 uhci_soft_qh_t *); 261 262 #ifdef UHCI_DEBUG 263 Static void uhci_dump_all(uhci_softc_t *); 264 Static void uhci_dumpregs(uhci_softc_t *); 265 Static void uhci_dump_qhs(uhci_soft_qh_t *); 266 Static void uhci_dump_qh(uhci_soft_qh_t *); 267 Static void uhci_dump_tds(uhci_soft_td_t *); 268 Static void uhci_dump_td(uhci_soft_td_t *); 269 Static void uhci_dump_ii(uhci_intr_info_t *ii); 270 void uhci_dump(void); 271 #endif 272 273 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 274 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 275 #define UWRITE1(sc, r, x) \ 276 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 277 #define UWRITE2(sc, r, x) \ 278 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 279 #define UWRITE4(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 281 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 282 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 283 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 284 285 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 286 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 287 288 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 289 290 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 291 292 #define UHCI_INTR_ENDPT 1 293 294 struct usbd_bus_methods uhci_bus_methods = { 295 uhci_open, 296 uhci_softintr, 297 uhci_poll, 298 uhci_allocm, 299 uhci_freem, 300 uhci_allocx, 301 uhci_freex, 302 }; 303 304 struct usbd_pipe_methods uhci_root_ctrl_methods = { 305 uhci_root_ctrl_transfer, 306 uhci_root_ctrl_start, 307 uhci_root_ctrl_abort, 308 uhci_root_ctrl_close, 309 uhci_noop, 310 uhci_root_ctrl_done, 311 }; 312 313 struct usbd_pipe_methods uhci_root_intr_methods = { 314 uhci_root_intr_transfer, 315 uhci_root_intr_start, 316 uhci_root_intr_abort, 317 uhci_root_intr_close, 318 uhci_noop, 319 uhci_root_intr_done, 320 }; 321 322 struct usbd_pipe_methods uhci_device_ctrl_methods = { 323 uhci_device_ctrl_transfer, 324 uhci_device_ctrl_start, 325 uhci_device_ctrl_abort, 326 uhci_device_ctrl_close, 327 uhci_noop, 328 uhci_device_ctrl_done, 329 }; 330 331 struct usbd_pipe_methods uhci_device_intr_methods = { 332 uhci_device_intr_transfer, 333 uhci_device_intr_start, 334 uhci_device_intr_abort, 335 uhci_device_intr_close, 336 uhci_device_clear_toggle, 337 uhci_device_intr_done, 338 }; 339 340 struct usbd_pipe_methods uhci_device_bulk_methods = { 341 uhci_device_bulk_transfer, 342 uhci_device_bulk_start, 343 uhci_device_bulk_abort, 344 uhci_device_bulk_close, 345 uhci_device_clear_toggle, 346 uhci_device_bulk_done, 347 }; 348 349 struct usbd_pipe_methods uhci_device_isoc_methods = { 350 uhci_device_isoc_transfer, 351 uhci_device_isoc_start, 352 uhci_device_isoc_abort, 353 uhci_device_isoc_close, 354 uhci_noop, 355 uhci_device_isoc_done, 356 }; 357 358 #define uhci_add_intr_info(sc, ii) \ 359 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 360 #define uhci_del_intr_info(ii) \ 361 LIST_REMOVE((ii), list) 362 363 Static __inline__ uhci_soft_qh_t * 364 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 365 { 366 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 367 368 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 369 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 370 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 371 printf("uhci_find_prev_qh: QH not found\n"); 372 return (NULL); 373 } 374 #endif 375 } 376 return (pqh); 377 } 378 379 void 380 uhci_globalreset(uhci_softc_t *sc) 381 { 382 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 383 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 384 UHCICMD(sc, 0); /* do nothing */ 385 } 386 387 usbd_status 388 uhci_init(uhci_softc_t *sc) 389 { 390 usbd_status err; 391 int i, j; 392 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 393 uhci_soft_td_t *std; 394 395 DPRINTFN(1,("uhci_init: start\n")); 396 397 #ifdef UHCI_DEBUG 398 thesc = sc; 399 400 if (uhcidebug > 2) 401 uhci_dumpregs(sc); 402 #endif 403 404 uhci_run(sc, 0); /* stop the controller */ 405 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 406 uhci_globalreset(sc); /* reset the controller */ 407 uhci_reset(sc); 408 409 /* Allocate and initialize real frame array. */ 410 err = usb_allocmem(&sc->sc_bus, 411 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 412 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 413 if (err) 414 return (err); 415 sc->sc_pframes = KERNADDR(&sc->sc_dma); 416 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 417 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 418 419 /* 420 * Allocate a TD, inactive, that hangs from the last QH. 421 * This is to avoid a bug in the PIIX that makes it run berserk 422 * otherwise. 423 */ 424 std = uhci_alloc_std(sc); 425 if (std == NULL) 426 return (USBD_NOMEM); 427 std->link.std = NULL; 428 std->td.td_link = htole32(UHCI_PTR_T); 429 std->td.td_status = htole32(0); /* inactive */ 430 std->td.td_token = htole32(0); 431 std->td.td_buffer = htole32(0); 432 433 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 434 lsqh = uhci_alloc_sqh(sc); 435 if (lsqh == NULL) 436 return (USBD_NOMEM); 437 lsqh->hlink = NULL; 438 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 439 lsqh->elink = std; 440 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 441 sc->sc_last_qh = lsqh; 442 443 /* Allocate the dummy QH where bulk traffic will be queued. */ 444 bsqh = uhci_alloc_sqh(sc); 445 if (bsqh == NULL) 446 return (USBD_NOMEM); 447 bsqh->hlink = lsqh; 448 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 449 bsqh->elink = NULL; 450 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 451 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 452 453 /* Allocate dummy QH where high speed control traffic will be queued. */ 454 chsqh = uhci_alloc_sqh(sc); 455 if (chsqh == NULL) 456 return (USBD_NOMEM); 457 chsqh->hlink = bsqh; 458 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 459 chsqh->elink = NULL; 460 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 461 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 462 463 /* Allocate dummy QH where control traffic will be queued. */ 464 clsqh = uhci_alloc_sqh(sc); 465 if (clsqh == NULL) 466 return (USBD_NOMEM); 467 clsqh->hlink = bsqh; 468 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 469 clsqh->elink = NULL; 470 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 471 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 472 473 /* 474 * Make all (virtual) frame list pointers point to the interrupt 475 * queue heads and the interrupt queue heads at the control 476 * queue head and point the physical frame list to the virtual. 477 */ 478 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 479 std = uhci_alloc_std(sc); 480 sqh = uhci_alloc_sqh(sc); 481 if (std == NULL || sqh == NULL) 482 return (USBD_NOMEM); 483 std->link.sqh = sqh; 484 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 485 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 486 std->td.td_token = htole32(0); 487 std->td.td_buffer = htole32(0); 488 sqh->hlink = clsqh; 489 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 490 sqh->elink = NULL; 491 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 492 sc->sc_vframes[i].htd = std; 493 sc->sc_vframes[i].etd = std; 494 sc->sc_vframes[i].hqh = sqh; 495 sc->sc_vframes[i].eqh = sqh; 496 for (j = i; 497 j < UHCI_FRAMELIST_COUNT; 498 j += UHCI_VFRAMELIST_COUNT) 499 sc->sc_pframes[j] = htole32(std->physaddr); 500 } 501 502 LIST_INIT(&sc->sc_intrhead); 503 504 SIMPLEQ_INIT(&sc->sc_free_xfers); 505 506 usb_callout_init(sc->sc_poll_handle); 507 508 /* Set up the bus struct. */ 509 sc->sc_bus.methods = &uhci_bus_methods; 510 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 511 512 #if defined(__NetBSD__) || defined(__OpenBSD__) 513 sc->sc_suspend = PWR_RESUME; 514 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 515 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 516 #endif 517 518 DPRINTFN(1,("uhci_init: enabling\n")); 519 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 520 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 521 522 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 523 524 return (uhci_run(sc, 1)); /* and here we go... */ 525 } 526 527 #if defined(__NetBSD__) || defined(__OpenBSD__) 528 int 529 uhci_activate(device_ptr_t self, enum devact act) 530 { 531 struct uhci_softc *sc = (struct uhci_softc *)self; 532 int rv = 0; 533 534 switch (act) { 535 case DVACT_ACTIVATE: 536 return (EOPNOTSUPP); 537 break; 538 539 case DVACT_DEACTIVATE: 540 if (sc->sc_child != NULL) 541 rv = config_deactivate(sc->sc_child); 542 break; 543 } 544 return (rv); 545 } 546 547 int 548 uhci_detach(struct uhci_softc *sc, int flags) 549 { 550 usbd_xfer_handle xfer; 551 int rv = 0; 552 553 if (sc->sc_child != NULL) 554 rv = config_detach(sc->sc_child, flags); 555 556 if (rv != 0) 557 return (rv); 558 559 #if defined(__NetBSD__) || defined(__OpenBSD__) 560 powerhook_disestablish(sc->sc_powerhook); 561 shutdownhook_disestablish(sc->sc_shutdownhook); 562 #endif 563 564 /* Free all xfers associated with this HC. */ 565 for (;;) { 566 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 567 if (xfer == NULL) 568 break; 569 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 570 free(xfer, M_USB); 571 } 572 573 /* XXX free other data structures XXX */ 574 575 return (rv); 576 } 577 #endif 578 579 usbd_status 580 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 581 { 582 struct uhci_softc *sc = (struct uhci_softc *)bus; 583 u_int32_t n; 584 585 /* 586 * XXX 587 * Since we are allocating a buffer we can assume that we will 588 * need TDs for it. Since we don't want to alolocate those from 589 * an interrupt context, we allocate them here and free them again. 590 * This is no guarantee that we'll get the TDs next time... 591 */ 592 n = size / 8; 593 if (n > 16) { 594 u_int32_t i; 595 uhci_soft_td_t **stds; 596 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 597 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, M_NOWAIT); 598 if (stds == NULL) 599 panic("uhci_allocm"); 600 memset(stds, 0, sizeof(uhci_soft_td_t *) * n); 601 for(i=0; i < n; i++) 602 stds[i] = uhci_alloc_std(sc); 603 for(i=0; i < n; i++) 604 if (stds[i] != NULL) 605 uhci_free_std(sc, stds[i]); 606 free(stds, M_TEMP); 607 } 608 609 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 610 } 611 612 void 613 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 614 { 615 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 616 } 617 618 usbd_xfer_handle 619 uhci_allocx(struct usbd_bus *bus) 620 { 621 struct uhci_softc *sc = (struct uhci_softc *)bus; 622 usbd_xfer_handle xfer; 623 624 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 625 if (xfer != NULL) { 626 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 627 #ifdef DIAGNOSTIC 628 if (xfer->busy_free != XFER_FREE) { 629 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 630 xfer->busy_free); 631 } 632 #endif 633 } else { 634 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 635 } 636 if (xfer != NULL) { 637 memset(xfer, 0, sizeof (struct uhci_xfer)); 638 UXFER(xfer)->iinfo.sc = sc; 639 #ifdef DIAGNOSTIC 640 UXFER(xfer)->iinfo.isdone = 1; 641 xfer->busy_free = XFER_BUSY; 642 #endif 643 } 644 return (xfer); 645 } 646 647 void 648 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 649 { 650 struct uhci_softc *sc = (struct uhci_softc *)bus; 651 652 #ifdef DIAGNOSTIC 653 if (xfer->busy_free != XFER_BUSY) { 654 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 655 xfer->busy_free); 656 return; 657 } 658 xfer->busy_free = XFER_FREE; 659 if (!UXFER(xfer)->iinfo.isdone) { 660 printf("uhci_freex: !isdone\n"); 661 return; 662 } 663 #endif 664 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 665 } 666 667 /* 668 * Shut down the controller when the system is going down. 669 */ 670 void 671 uhci_shutdown(void *v) 672 { 673 uhci_softc_t *sc = v; 674 675 DPRINTF(("uhci_shutdown: stopping the HC\n")); 676 uhci_run(sc, 0); /* stop the controller */ 677 } 678 679 /* 680 * Handle suspend/resume. 681 * 682 * We need to switch to polling mode here, because this routine is 683 * called from an interrupt context. This is all right since we 684 * are almost suspended anyway. 685 */ 686 void 687 uhci_power(int why, void *v) 688 { 689 uhci_softc_t *sc = v; 690 int cmd; 691 int s; 692 693 s = splhardusb(); 694 cmd = UREAD2(sc, UHCI_CMD); 695 696 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 697 sc, why, sc->sc_suspend, cmd)); 698 699 switch (why) { 700 case PWR_SUSPEND: 701 case PWR_STANDBY: 702 #ifdef UHCI_DEBUG 703 if (uhcidebug > 2) 704 uhci_dumpregs(sc); 705 #endif 706 if (sc->sc_intr_xfer != NULL) 707 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 708 sc->sc_intr_xfer); 709 sc->sc_bus.use_polling++; 710 uhci_run(sc, 0); /* stop the controller */ 711 712 /* save some state if BIOS doesn't */ 713 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 714 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 715 716 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 717 718 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 719 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 720 sc->sc_suspend = why; 721 sc->sc_bus.use_polling--; 722 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 723 break; 724 case PWR_RESUME: 725 #ifdef DIAGNOSTIC 726 if (sc->sc_suspend == PWR_RESUME) 727 printf("uhci_power: weird, resume without suspend.\n"); 728 #endif 729 sc->sc_bus.use_polling++; 730 sc->sc_suspend = why; 731 if (cmd & UHCI_CMD_RS) 732 uhci_run(sc, 0); /* in case BIOS has started it */ 733 734 /* restore saved state */ 735 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 736 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 737 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 738 739 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 740 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 741 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 742 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 743 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 744 uhci_run(sc, 1); /* and start traffic again */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 746 sc->sc_bus.use_polling--; 747 if (sc->sc_intr_xfer != NULL) 748 usb_callout(sc->sc_poll_handle, sc->sc_ival, 749 uhci_poll_hub, sc->sc_intr_xfer); 750 #ifdef UHCI_DEBUG 751 if (uhcidebug > 2) 752 uhci_dumpregs(sc); 753 #endif 754 break; 755 #if defined(__NetBSD__) 756 case PWR_SOFTSUSPEND: 757 case PWR_SOFTSTANDBY: 758 case PWR_SOFTRESUME: 759 break; 760 #endif 761 } 762 splx(s); 763 } 764 765 #ifdef UHCI_DEBUG 766 Static void 767 uhci_dumpregs(uhci_softc_t *sc) 768 { 769 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 770 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 771 USBDEVNAME(sc->sc_bus.bdev), 772 UREAD2(sc, UHCI_CMD), 773 UREAD2(sc, UHCI_STS), 774 UREAD2(sc, UHCI_INTR), 775 UREAD2(sc, UHCI_FRNUM), 776 UREAD4(sc, UHCI_FLBASEADDR), 777 UREAD1(sc, UHCI_SOF), 778 UREAD2(sc, UHCI_PORTSC1), 779 UREAD2(sc, UHCI_PORTSC2))); 780 } 781 782 void 783 uhci_dump_td(uhci_soft_td_t *p) 784 { 785 char sbuf[128], sbuf2[128]; 786 787 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 788 "token=0x%08lx buffer=0x%08lx\n", 789 p, (long)p->physaddr, 790 (long)le32toh(p->td.td_link), 791 (long)le32toh(p->td.td_status), 792 (long)le32toh(p->td.td_token), 793 (long)le32toh(p->td.td_buffer))); 794 795 bitmask_snprintf((int)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 796 sbuf, sizeof(sbuf)); 797 bitmask_snprintf((int)le32toh(p->td.td_status), 798 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 799 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 800 sbuf2, sizeof(sbuf2)); 801 802 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 803 "D=%d,maxlen=%d\n", sbuf, sbuf2, 804 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 805 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 806 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 807 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 808 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 809 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 810 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 811 } 812 813 void 814 uhci_dump_qh(uhci_soft_qh_t *sqh) 815 { 816 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 817 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 818 le32toh(sqh->qh.qh_elink))); 819 } 820 821 822 void 823 uhci_dump(void) 824 { 825 uhci_dump_all(thesc); 826 } 827 828 void 829 uhci_dump_all(uhci_softc_t *sc) 830 { 831 uhci_dumpregs(sc); 832 printf("intrs=%d\n", sc->sc_bus.no_intrs); 833 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 834 uhci_dump_qh(sc->sc_lctl_start); 835 } 836 837 838 void 839 uhci_dump_qhs(uhci_soft_qh_t *sqh) 840 { 841 uhci_dump_qh(sqh); 842 843 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 844 * Traverses sideways first, then down. 845 * 846 * QH1 847 * QH2 848 * No QH 849 * TD2.1 850 * TD2.2 851 * TD1.1 852 * etc. 853 * 854 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 855 */ 856 857 858 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 859 uhci_dump_qhs(sqh->hlink); 860 else 861 DPRINTF(("No QH\n")); 862 863 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 864 uhci_dump_tds(sqh->elink); 865 else 866 DPRINTF(("No TD\n")); 867 } 868 869 void 870 uhci_dump_tds(uhci_soft_td_t *std) 871 { 872 uhci_soft_td_t *td; 873 874 for(td = std; td != NULL; td = td->link.std) { 875 uhci_dump_td(td); 876 877 /* Check whether the link pointer in this TD marks 878 * the link pointer as end of queue. This avoids 879 * printing the free list in case the queue/TD has 880 * already been moved there (seatbelt). 881 */ 882 if (le32toh(td->td.td_link) & UHCI_PTR_T || 883 le32toh(td->td.td_link) == 0) 884 break; 885 } 886 } 887 888 Static void 889 uhci_dump_ii(uhci_intr_info_t *ii) 890 { 891 usbd_pipe_handle pipe; 892 usb_endpoint_descriptor_t *ed; 893 usbd_device_handle dev; 894 895 #ifdef DIAGNOSTIC 896 #define DONE ii->isdone 897 #else 898 #define DONE 0 899 #endif 900 if (ii == NULL) { 901 printf("ii NULL\n"); 902 return; 903 } 904 if (ii->xfer == NULL) { 905 printf("ii %p: done=%d xfer=NULL\n", 906 ii, DONE); 907 return; 908 } 909 pipe = ii->xfer->pipe; 910 if (pipe == NULL) { 911 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 912 ii, DONE, ii->xfer); 913 return; 914 } 915 if (pipe->endpoint == NULL) { 916 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 917 ii, DONE, ii->xfer, pipe); 918 return; 919 } 920 if (pipe->device == NULL) { 921 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 922 ii, DONE, ii->xfer, pipe); 923 return; 924 } 925 ed = pipe->endpoint->edesc; 926 dev = pipe->device; 927 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", 928 ii, DONE, ii->xfer, dev, 929 UGETW(dev->ddesc.idVendor), 930 UGETW(dev->ddesc.idProduct), 931 dev->address, pipe, 932 ed->bEndpointAddress, ed->bmAttributes); 933 #undef DONE 934 } 935 936 void uhci_dump_iis(struct uhci_softc *sc); 937 void 938 uhci_dump_iis(struct uhci_softc *sc) 939 { 940 uhci_intr_info_t *ii; 941 942 printf("intr_info list:\n"); 943 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 944 uhci_dump_ii(ii); 945 } 946 947 void iidump(void); 948 void iidump(void) { uhci_dump_iis(thesc); } 949 950 #endif 951 952 /* 953 * This routine is executed periodically and simulates interrupts 954 * from the root controller interrupt pipe for port status change. 955 */ 956 void 957 uhci_poll_hub(void *addr) 958 { 959 usbd_xfer_handle xfer = addr; 960 usbd_pipe_handle pipe = xfer->pipe; 961 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 962 int s; 963 u_char *p; 964 965 DPRINTFN(20, ("uhci_poll_hub\n")); 966 967 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 968 969 p = KERNADDR(&xfer->dmabuf); 970 p[0] = 0; 971 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 972 p[0] |= 1<<1; 973 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 974 p[0] |= 1<<2; 975 if (p[0] == 0) 976 /* No change, try again in a while */ 977 return; 978 979 xfer->actlen = 1; 980 xfer->status = USBD_NORMAL_COMPLETION; 981 s = splusb(); 982 xfer->device->bus->intr_context++; 983 usb_transfer_complete(xfer); 984 xfer->device->bus->intr_context--; 985 splx(s); 986 } 987 988 void 989 uhci_root_intr_done(usbd_xfer_handle xfer) 990 { 991 } 992 993 void 994 uhci_root_ctrl_done(usbd_xfer_handle xfer) 995 { 996 } 997 998 /* 999 * Let the last QH loop back to the high speed control transfer QH. 1000 * This is what intel calls "bandwidth reclamation" and improves 1001 * USB performance a lot for some devices. 1002 * If we are already looping, just count it. 1003 */ 1004 void 1005 uhci_add_loop(uhci_softc_t *sc) { 1006 #ifdef UHCI_DEBUG 1007 if (uhcinoloop) 1008 return; 1009 #endif 1010 if (++sc->sc_loops == 1) { 1011 DPRINTFN(5,("uhci_start_loop: add\n")); 1012 /* Note, we don't loop back the soft pointer. */ 1013 sc->sc_last_qh->qh.qh_hlink = 1014 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1015 } 1016 } 1017 1018 void 1019 uhci_rem_loop(uhci_softc_t *sc) { 1020 #ifdef UHCI_DEBUG 1021 if (uhcinoloop) 1022 return; 1023 #endif 1024 if (--sc->sc_loops == 0) { 1025 DPRINTFN(5,("uhci_end_loop: remove\n")); 1026 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1027 } 1028 } 1029 1030 /* Add high speed control QH, called at splusb(). */ 1031 void 1032 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1033 { 1034 uhci_soft_qh_t *eqh; 1035 1036 SPLUSBCHECK; 1037 1038 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1039 eqh = sc->sc_hctl_end; 1040 sqh->hlink = eqh->hlink; 1041 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1042 eqh->hlink = sqh; 1043 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1044 sc->sc_hctl_end = sqh; 1045 #ifdef UHCI_CTL_LOOP 1046 uhci_add_loop(sc); 1047 #endif 1048 } 1049 1050 /* Remove high speed control QH, called at splusb(). */ 1051 void 1052 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1053 { 1054 uhci_soft_qh_t *pqh; 1055 1056 SPLUSBCHECK; 1057 1058 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1059 #ifdef UHCI_CTL_LOOP 1060 uhci_rem_loop(sc); 1061 #endif 1062 /* 1063 * The T bit should be set in the elink of the QH so that the HC 1064 * doesn't follow the pointer. This condition may fail if the 1065 * the transferred packet was short so that the QH still points 1066 * at the last used TD. 1067 * In this case we set the T bit and wait a little for the HC 1068 * to stop looking at the TD. 1069 */ 1070 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1071 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1072 delay(UHCI_QH_REMOVE_DELAY); 1073 } 1074 1075 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1076 pqh->hlink = sqh->hlink; 1077 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1078 delay(UHCI_QH_REMOVE_DELAY); 1079 if (sc->sc_hctl_end == sqh) 1080 sc->sc_hctl_end = pqh; 1081 } 1082 1083 /* Add low speed control QH, called at splusb(). */ 1084 void 1085 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1086 { 1087 uhci_soft_qh_t *eqh; 1088 1089 SPLUSBCHECK; 1090 1091 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1092 eqh = sc->sc_lctl_end; 1093 sqh->hlink = eqh->hlink; 1094 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1095 eqh->hlink = sqh; 1096 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1097 sc->sc_lctl_end = sqh; 1098 } 1099 1100 /* Remove low speed control QH, called at splusb(). */ 1101 void 1102 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1103 { 1104 uhci_soft_qh_t *pqh; 1105 1106 SPLUSBCHECK; 1107 1108 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1109 /* See comment in uhci_remove_hs_ctrl() */ 1110 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1111 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1112 delay(UHCI_QH_REMOVE_DELAY); 1113 } 1114 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1115 pqh->hlink = sqh->hlink; 1116 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1117 delay(UHCI_QH_REMOVE_DELAY); 1118 if (sc->sc_lctl_end == sqh) 1119 sc->sc_lctl_end = pqh; 1120 } 1121 1122 /* Add bulk QH, called at splusb(). */ 1123 void 1124 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1125 { 1126 uhci_soft_qh_t *eqh; 1127 1128 SPLUSBCHECK; 1129 1130 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1131 eqh = sc->sc_bulk_end; 1132 sqh->hlink = eqh->hlink; 1133 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1134 eqh->hlink = sqh; 1135 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1136 sc->sc_bulk_end = sqh; 1137 uhci_add_loop(sc); 1138 } 1139 1140 /* Remove bulk QH, called at splusb(). */ 1141 void 1142 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1143 { 1144 uhci_soft_qh_t *pqh; 1145 1146 SPLUSBCHECK; 1147 1148 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1149 uhci_rem_loop(sc); 1150 /* See comment in uhci_remove_hs_ctrl() */ 1151 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1152 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1153 delay(UHCI_QH_REMOVE_DELAY); 1154 } 1155 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1156 pqh->hlink = sqh->hlink; 1157 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1158 delay(UHCI_QH_REMOVE_DELAY); 1159 if (sc->sc_bulk_end == sqh) 1160 sc->sc_bulk_end = pqh; 1161 } 1162 1163 Static int uhci_intr1(uhci_softc_t *); 1164 1165 int 1166 uhci_intr(void *arg) 1167 { 1168 uhci_softc_t *sc = arg; 1169 1170 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1171 if (sc->sc_bus.use_polling) { 1172 #ifdef DIAGNOSTIC 1173 printf("uhci_intr: ignored interrupt while polling\n"); 1174 #endif 1175 return (0); 1176 } 1177 return (uhci_intr1(sc)); 1178 } 1179 1180 int 1181 uhci_intr1(uhci_softc_t *sc) 1182 { 1183 int status; 1184 int ack; 1185 1186 #ifdef UHCI_DEBUG 1187 if (uhcidebug > 15) { 1188 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1189 uhci_dumpregs(sc); 1190 } 1191 #endif 1192 1193 status = UREAD2(sc, UHCI_STS); 1194 if (status == 0) /* The interrupt was not for us. */ 1195 return (0); 1196 1197 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1198 if (sc->sc_suspend != PWR_RESUME) 1199 printf("uhci_intr: suspended sts=0x%x\n", status); 1200 #endif 1201 1202 if (sc->sc_suspend != PWR_RESUME) { 1203 printf("%s: interrupt while not operating ignored\n", 1204 USBDEVNAME(sc->sc_bus.bdev)); 1205 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1206 return (0); 1207 } 1208 1209 ack = 0; 1210 if (status & UHCI_STS_USBINT) 1211 ack |= UHCI_STS_USBINT; 1212 if (status & UHCI_STS_USBEI) 1213 ack |= UHCI_STS_USBEI; 1214 if (status & UHCI_STS_RD) { 1215 ack |= UHCI_STS_RD; 1216 #ifdef UHCI_DEBUG 1217 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1218 #endif 1219 } 1220 if (status & UHCI_STS_HSE) { 1221 ack |= UHCI_STS_HSE; 1222 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1223 } 1224 if (status & UHCI_STS_HCPE) { 1225 ack |= UHCI_STS_HCPE; 1226 printf("%s: host controller process error\n", 1227 USBDEVNAME(sc->sc_bus.bdev)); 1228 } 1229 if (status & UHCI_STS_HCH) { 1230 /* no acknowledge needed */ 1231 if (!sc->sc_dying) { 1232 printf("%s: host controller halted\n", 1233 USBDEVNAME(sc->sc_bus.bdev)); 1234 #ifdef UHCI_DEBUG 1235 uhci_dump_all(sc); 1236 #endif 1237 } 1238 sc->sc_dying = 1; 1239 } 1240 1241 if (!ack) 1242 return (0); /* nothing to acknowledge */ 1243 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1244 1245 sc->sc_bus.no_intrs++; 1246 usb_schedsoftintr(&sc->sc_bus); 1247 1248 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1249 1250 return (1); 1251 } 1252 1253 void 1254 uhci_softintr(void *v) 1255 { 1256 uhci_softc_t *sc = v; 1257 uhci_intr_info_t *ii; 1258 1259 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1260 sc->sc_bus.intr_context)); 1261 1262 sc->sc_bus.intr_context++; 1263 1264 /* 1265 * Interrupts on UHCI really suck. When the host controller 1266 * interrupts because a transfer is completed there is no 1267 * way of knowing which transfer it was. You can scan down 1268 * the TDs and QHs of the previous frame to limit the search, 1269 * but that assumes that the interrupt was not delayed by more 1270 * than 1 ms, which may not always be true (e.g. after debug 1271 * output on a slow console). 1272 * We scan all interrupt descriptors to see if any have 1273 * completed. 1274 */ 1275 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1276 uhci_check_intr(sc, ii); 1277 1278 sc->sc_bus.intr_context--; 1279 } 1280 1281 /* Check for an interrupt. */ 1282 void 1283 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1284 { 1285 uhci_soft_td_t *std, *lstd; 1286 u_int32_t status; 1287 1288 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1289 #ifdef DIAGNOSTIC 1290 if (ii == NULL) { 1291 printf("uhci_check_intr: no ii? %p\n", ii); 1292 return; 1293 } 1294 #endif 1295 if (ii->stdstart == NULL) 1296 return; 1297 lstd = ii->stdend; 1298 #ifdef DIAGNOSTIC 1299 if (lstd == NULL) { 1300 printf("uhci_check_intr: std==0\n"); 1301 return; 1302 } 1303 #endif 1304 /* 1305 * If the last TD is still active we need to check whether there 1306 * is a an error somewhere in the middle, or whether there was a 1307 * short packet (SPD and not ACTIVE). 1308 */ 1309 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1310 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1311 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1312 status = le32toh(std->td.td_status); 1313 /* If there's an active TD the xfer isn't done. */ 1314 if (status & UHCI_TD_ACTIVE) 1315 break; 1316 /* Any kind of error makes the xfer done. */ 1317 if (status & UHCI_TD_STALLED) 1318 goto done; 1319 /* We want short packets, and it is short: it's done */ 1320 if ((status & UHCI_TD_SPD) && 1321 UHCI_TD_GET_ACTLEN(status) < 1322 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1323 goto done; 1324 } 1325 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1326 ii, ii->stdstart)); 1327 return; 1328 } 1329 done: 1330 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1331 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1332 uhci_idone(ii); 1333 } 1334 1335 /* Called at splusb() */ 1336 void 1337 uhci_idone(uhci_intr_info_t *ii) 1338 { 1339 usbd_xfer_handle xfer = ii->xfer; 1340 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1341 uhci_soft_td_t *std; 1342 u_int32_t status = 0, nstatus; 1343 int actlen; 1344 1345 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1346 #ifdef DIAGNOSTIC 1347 { 1348 int s = splhigh(); 1349 if (ii->isdone) { 1350 splx(s); 1351 #ifdef UHCI_DEBUG 1352 printf("uhci_idone: ii is done!\n "); 1353 uhci_dump_ii(ii); 1354 #else 1355 printf("uhci_idone: ii=%p is done!\n", ii); 1356 #endif 1357 return; 1358 } 1359 ii->isdone = 1; 1360 splx(s); 1361 } 1362 #endif 1363 1364 if (xfer->status == USBD_CANCELLED || 1365 xfer->status == USBD_TIMEOUT) { 1366 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1367 return; 1368 } 1369 1370 if (xfer->nframes != 0) { 1371 /* Isoc transfer, do things differently. */ 1372 uhci_soft_td_t **stds = upipe->u.iso.stds; 1373 int i, n, nframes, len; 1374 1375 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1376 1377 nframes = xfer->nframes; 1378 actlen = 0; 1379 n = UXFER(xfer)->curframe; 1380 for (i = 0; i < nframes; i++) { 1381 std = stds[n]; 1382 #ifdef UHCI_DEBUG 1383 if (uhcidebug > 5) { 1384 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1385 uhci_dump_td(std); 1386 } 1387 #endif 1388 if (++n >= UHCI_VFRAMELIST_COUNT) 1389 n = 0; 1390 status = le32toh(std->td.td_status); 1391 len = UHCI_TD_GET_ACTLEN(status); 1392 xfer->frlengths[i] = len; 1393 actlen += len; 1394 } 1395 upipe->u.iso.inuse -= nframes; 1396 xfer->actlen = actlen; 1397 xfer->status = USBD_NORMAL_COMPLETION; 1398 goto end; 1399 } 1400 1401 #ifdef UHCI_DEBUG 1402 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1403 ii, xfer, upipe)); 1404 if (uhcidebug > 10) 1405 uhci_dump_tds(ii->stdstart); 1406 #endif 1407 1408 /* The transfer is done, compute actual length and status. */ 1409 actlen = 0; 1410 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1411 nstatus = le32toh(std->td.td_status); 1412 if (nstatus & UHCI_TD_ACTIVE) 1413 break; 1414 1415 status = nstatus; 1416 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1417 UHCI_TD_PID_SETUP) 1418 actlen += UHCI_TD_GET_ACTLEN(status); 1419 } 1420 /* If there are left over TDs we need to update the toggle. */ 1421 if (std != NULL) 1422 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1423 1424 status &= UHCI_TD_ERROR; 1425 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1426 actlen, status)); 1427 xfer->actlen = actlen; 1428 if (status != 0) { 1429 #ifdef UHCI_DEBUG 1430 char sbuf[128]; 1431 1432 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1433 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1434 sbuf, sizeof(sbuf)); 1435 1436 DPRINTFN((status == UHCI_TD_STALLED)*10, 1437 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1438 "status 0x%s\n", 1439 xfer->pipe->device->address, 1440 xfer->pipe->endpoint->edesc->bEndpointAddress, 1441 sbuf)); 1442 #endif 1443 1444 if (status == UHCI_TD_STALLED) 1445 xfer->status = USBD_STALLED; 1446 else 1447 xfer->status = USBD_IOERROR; /* more info XXX */ 1448 } else { 1449 xfer->status = USBD_NORMAL_COMPLETION; 1450 } 1451 1452 end: 1453 usb_transfer_complete(xfer); 1454 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1455 } 1456 1457 /* 1458 * Called when a request does not complete. 1459 */ 1460 void 1461 uhci_timeout(void *addr) 1462 { 1463 uhci_intr_info_t *ii = addr; 1464 1465 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1466 1467 #ifdef UHCI_DEBUG 1468 if (uhcidebug > 10) 1469 uhci_dump_tds(ii->stdstart); 1470 #endif 1471 1472 ii->xfer->device->bus->intr_context++; 1473 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1474 ii->xfer->device->bus->intr_context--; 1475 } 1476 1477 /* 1478 * Wait here until controller claims to have an interrupt. 1479 * Then call uhci_intr and return. Use timeout to avoid waiting 1480 * too long. 1481 * Only used during boot when interrupts are not enabled yet. 1482 */ 1483 void 1484 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1485 { 1486 int timo = xfer->timeout; 1487 uhci_intr_info_t *ii; 1488 1489 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1490 1491 xfer->status = USBD_IN_PROGRESS; 1492 for (; timo >= 0; timo--) { 1493 usb_delay_ms(&sc->sc_bus, 1); 1494 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1495 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1496 uhci_intr1(sc); 1497 if (xfer->status != USBD_IN_PROGRESS) 1498 return; 1499 } 1500 } 1501 1502 /* Timeout */ 1503 DPRINTF(("uhci_waitintr: timeout\n")); 1504 for (ii = LIST_FIRST(&sc->sc_intrhead); 1505 ii != NULL && ii->xfer != xfer; 1506 ii = LIST_NEXT(ii, list)) 1507 ; 1508 #ifdef DIAGNOSTIC 1509 if (ii == NULL) 1510 panic("uhci_waitintr: lost intr_info\n"); 1511 #endif 1512 uhci_idone(ii); 1513 } 1514 1515 void 1516 uhci_poll(struct usbd_bus *bus) 1517 { 1518 uhci_softc_t *sc = (uhci_softc_t *)bus; 1519 1520 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1521 uhci_intr1(sc); 1522 } 1523 1524 void 1525 uhci_reset(uhci_softc_t *sc) 1526 { 1527 int n; 1528 1529 UHCICMD(sc, UHCI_CMD_HCRESET); 1530 /* The reset bit goes low when the controller is done. */ 1531 for (n = 0; n < UHCI_RESET_TIMEOUT && 1532 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1533 usb_delay_ms(&sc->sc_bus, 1); 1534 if (n >= UHCI_RESET_TIMEOUT) 1535 printf("%s: controller did not reset\n", 1536 USBDEVNAME(sc->sc_bus.bdev)); 1537 } 1538 1539 usbd_status 1540 uhci_run(uhci_softc_t *sc, int run) 1541 { 1542 int s, n, running; 1543 u_int16_t cmd; 1544 1545 run = run != 0; 1546 s = splhardusb(); 1547 DPRINTF(("uhci_run: setting run=%d\n", run)); 1548 cmd = UREAD2(sc, UHCI_CMD); 1549 if (run) 1550 cmd |= UHCI_CMD_RS; 1551 else 1552 cmd &= ~UHCI_CMD_RS; 1553 UHCICMD(sc, cmd); 1554 for(n = 0; n < 10; n++) { 1555 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1556 /* return when we've entered the state we want */ 1557 if (run == running) { 1558 splx(s); 1559 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1560 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1561 return (USBD_NORMAL_COMPLETION); 1562 } 1563 usb_delay_ms(&sc->sc_bus, 1); 1564 } 1565 splx(s); 1566 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1567 run ? "start" : "stop"); 1568 return (USBD_IOERROR); 1569 } 1570 1571 /* 1572 * Memory management routines. 1573 * uhci_alloc_std allocates TDs 1574 * uhci_alloc_sqh allocates QHs 1575 * These two routines do their own free list management, 1576 * partly for speed, partly because allocating DMAable memory 1577 * has page size granularaity so much memory would be wasted if 1578 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1579 */ 1580 1581 uhci_soft_td_t * 1582 uhci_alloc_std(uhci_softc_t *sc) 1583 { 1584 uhci_soft_td_t *std; 1585 usbd_status err; 1586 int i, offs; 1587 usb_dma_t dma; 1588 1589 if (sc->sc_freetds == NULL) { 1590 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1591 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1592 UHCI_TD_ALIGN, &dma); 1593 if (err) 1594 return (0); 1595 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1596 offs = i * UHCI_STD_SIZE; 1597 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1598 std->physaddr = DMAADDR(&dma) + offs; 1599 std->link.std = sc->sc_freetds; 1600 sc->sc_freetds = std; 1601 } 1602 } 1603 std = sc->sc_freetds; 1604 sc->sc_freetds = std->link.std; 1605 memset(&std->td, 0, sizeof(uhci_td_t)); 1606 return std; 1607 } 1608 1609 void 1610 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1611 { 1612 #ifdef DIAGNOSTIC 1613 #define TD_IS_FREE 0x12345678 1614 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1615 printf("uhci_free_std: freeing free TD %p\n", std); 1616 return; 1617 } 1618 std->td.td_token = htole32(TD_IS_FREE); 1619 #endif 1620 std->link.std = sc->sc_freetds; 1621 sc->sc_freetds = std; 1622 } 1623 1624 uhci_soft_qh_t * 1625 uhci_alloc_sqh(uhci_softc_t *sc) 1626 { 1627 uhci_soft_qh_t *sqh; 1628 usbd_status err; 1629 int i, offs; 1630 usb_dma_t dma; 1631 1632 if (sc->sc_freeqhs == NULL) { 1633 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1634 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1635 UHCI_QH_ALIGN, &dma); 1636 if (err) 1637 return (0); 1638 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1639 offs = i * UHCI_SQH_SIZE; 1640 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1641 sqh->physaddr = DMAADDR(&dma) + offs; 1642 sqh->hlink = sc->sc_freeqhs; 1643 sc->sc_freeqhs = sqh; 1644 } 1645 } 1646 sqh = sc->sc_freeqhs; 1647 sc->sc_freeqhs = sqh->hlink; 1648 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1649 return (sqh); 1650 } 1651 1652 void 1653 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1654 { 1655 sqh->hlink = sc->sc_freeqhs; 1656 sc->sc_freeqhs = sqh; 1657 } 1658 1659 void 1660 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1661 uhci_soft_td_t *stdend) 1662 { 1663 uhci_soft_td_t *p; 1664 1665 for (; std != stdend; std = p) { 1666 p = std->link.std; 1667 uhci_free_std(sc, std); 1668 } 1669 } 1670 1671 usbd_status 1672 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1673 int rd, u_int16_t flags, usb_dma_t *dma, 1674 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1675 { 1676 uhci_soft_td_t *p, *lastp; 1677 uhci_physaddr_t lastlink; 1678 int i, ntd, l, tog, maxp; 1679 u_int32_t status; 1680 int addr = upipe->pipe.device->address; 1681 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1682 1683 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1684 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1685 upipe->pipe.device->lowspeed, flags)); 1686 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1687 if (maxp == 0) { 1688 printf("uhci_alloc_std_chain: maxp=0\n"); 1689 return (USBD_INVAL); 1690 } 1691 ntd = (len + maxp - 1) / maxp; 1692 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1693 ntd++; 1694 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1695 if (ntd == 0) { 1696 *sp = *ep = 0; 1697 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1698 return (USBD_NORMAL_COMPLETION); 1699 } 1700 tog = upipe->nexttoggle; 1701 if (ntd % 2 == 0) 1702 tog ^= 1; 1703 upipe->nexttoggle = tog ^ 1; 1704 lastp = NULL; 1705 lastlink = UHCI_PTR_T; 1706 ntd--; 1707 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1708 if (upipe->pipe.device->lowspeed) 1709 status |= UHCI_TD_LS; 1710 if (flags & USBD_SHORT_XFER_OK) 1711 status |= UHCI_TD_SPD; 1712 for (i = ntd; i >= 0; i--) { 1713 p = uhci_alloc_std(sc); 1714 if (p == NULL) { 1715 uhci_free_std_chain(sc, lastp, 0); 1716 return (USBD_NOMEM); 1717 } 1718 p->link.std = lastp; 1719 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1720 lastp = p; 1721 lastlink = p->physaddr; 1722 p->td.td_status = htole32(status); 1723 if (i == ntd) { 1724 /* last TD */ 1725 l = len % maxp; 1726 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1727 l = maxp; 1728 *ep = p; 1729 } else 1730 l = maxp; 1731 p->td.td_token = 1732 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1733 UHCI_TD_OUT(l, endpt, addr, tog)); 1734 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1735 tog ^= 1; 1736 } 1737 *sp = lastp; 1738 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1739 upipe->nexttoggle)); 1740 return (USBD_NORMAL_COMPLETION); 1741 } 1742 1743 void 1744 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1745 { 1746 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1747 upipe->nexttoggle = 0; 1748 } 1749 1750 void 1751 uhci_noop(usbd_pipe_handle pipe) 1752 { 1753 } 1754 1755 usbd_status 1756 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1757 { 1758 usbd_status err; 1759 1760 /* Insert last in queue. */ 1761 err = usb_insert_transfer(xfer); 1762 if (err) 1763 return (err); 1764 1765 /* 1766 * Pipe isn't running (otherwise err would be USBD_INPROG), 1767 * so start it first. 1768 */ 1769 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1770 } 1771 1772 usbd_status 1773 uhci_device_bulk_start(usbd_xfer_handle xfer) 1774 { 1775 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1776 usbd_device_handle dev = upipe->pipe.device; 1777 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1778 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1779 uhci_soft_td_t *data, *dataend; 1780 uhci_soft_qh_t *sqh; 1781 usbd_status err; 1782 int len, isread, endpt; 1783 int s; 1784 1785 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1786 xfer, xfer->length, xfer->flags)); 1787 1788 if (sc->sc_dying) 1789 return (USBD_IOERROR); 1790 1791 #ifdef DIAGNOSTIC 1792 if (xfer->rqflags & URQ_REQUEST) 1793 panic("uhci_device_bulk_transfer: a request\n"); 1794 #endif 1795 1796 len = xfer->length; 1797 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1798 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1799 sqh = upipe->u.bulk.sqh; 1800 1801 upipe->u.bulk.isread = isread; 1802 upipe->u.bulk.length = len; 1803 1804 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1805 &xfer->dmabuf, &data, &dataend); 1806 if (err) 1807 return (err); 1808 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1809 1810 #ifdef UHCI_DEBUG 1811 if (uhcidebug > 8) { 1812 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1813 uhci_dump_tds(data); 1814 } 1815 #endif 1816 1817 /* Set up interrupt info. */ 1818 ii->xfer = xfer; 1819 ii->stdstart = data; 1820 ii->stdend = dataend; 1821 #ifdef DIAGNOSTIC 1822 if (!ii->isdone) { 1823 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1824 } 1825 ii->isdone = 0; 1826 #endif 1827 1828 sqh->elink = data; 1829 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1830 1831 s = splusb(); 1832 uhci_add_bulk(sc, sqh); 1833 uhci_add_intr_info(sc, ii); 1834 1835 if (xfer->timeout && !sc->sc_bus.use_polling) { 1836 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1837 uhci_timeout, ii); 1838 } 1839 xfer->status = USBD_IN_PROGRESS; 1840 splx(s); 1841 1842 #ifdef UHCI_DEBUG 1843 if (uhcidebug > 10) { 1844 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1845 uhci_dump_tds(data); 1846 } 1847 #endif 1848 1849 if (sc->sc_bus.use_polling) 1850 uhci_waitintr(sc, xfer); 1851 1852 return (USBD_IN_PROGRESS); 1853 } 1854 1855 /* Abort a device bulk request. */ 1856 void 1857 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1858 { 1859 DPRINTF(("uhci_device_bulk_abort:\n")); 1860 uhci_abort_xfer(xfer, USBD_CANCELLED); 1861 } 1862 1863 /* 1864 * XXX This way of aborting is neither safe, nor good. 1865 * But it will have to do until I figure out what to do. 1866 * I apologize for the delay(). 1867 */ 1868 void 1869 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1870 { 1871 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1872 uhci_soft_td_t *std; 1873 int s; 1874 1875 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1876 1877 s = splusb(); 1878 1879 /* Transfer is already done. */ 1880 if (xfer->status != USBD_NOT_STARTED && 1881 xfer->status != USBD_IN_PROGRESS) { 1882 splx(s); 1883 return; 1884 } 1885 1886 /* Make interrupt routine ignore it, */ 1887 xfer->status = status; 1888 1889 /* don't timeout, */ 1890 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1891 1892 /* make hardware ignore it, */ 1893 for (std = ii->stdstart; std != NULL; std = std->link.std) 1894 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1895 1896 xfer->hcpriv = ii; 1897 1898 splx(s); 1899 1900 delay(1000); 1901 1902 s = splusb(); 1903 #ifdef DIAGNOSTIC 1904 ii->isdone = 1; 1905 #endif 1906 usb_transfer_complete(xfer); 1907 splx(s); 1908 } 1909 1910 /* Close a device bulk pipe. */ 1911 void 1912 uhci_device_bulk_close(usbd_pipe_handle pipe) 1913 { 1914 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1915 usbd_device_handle dev = upipe->pipe.device; 1916 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1917 1918 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1919 } 1920 1921 usbd_status 1922 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1923 { 1924 usbd_status err; 1925 1926 /* Insert last in queue. */ 1927 err = usb_insert_transfer(xfer); 1928 if (err) 1929 return (err); 1930 1931 /* 1932 * Pipe isn't running (otherwise err would be USBD_INPROG), 1933 * so start it first. 1934 */ 1935 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1936 } 1937 1938 usbd_status 1939 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1940 { 1941 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1942 usbd_status err; 1943 1944 if (sc->sc_dying) 1945 return (USBD_IOERROR); 1946 1947 #ifdef DIAGNOSTIC 1948 if (!(xfer->rqflags & URQ_REQUEST)) 1949 panic("uhci_device_ctrl_transfer: not a request\n"); 1950 #endif 1951 1952 err = uhci_device_request(xfer); 1953 if (err) 1954 return (err); 1955 1956 if (sc->sc_bus.use_polling) 1957 uhci_waitintr(sc, xfer); 1958 return (USBD_IN_PROGRESS); 1959 } 1960 1961 usbd_status 1962 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1963 { 1964 usbd_status err; 1965 1966 /* Insert last in queue. */ 1967 err = usb_insert_transfer(xfer); 1968 if (err) 1969 return (err); 1970 1971 /* 1972 * Pipe isn't running (otherwise err would be USBD_INPROG), 1973 * so start it first. 1974 */ 1975 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1976 } 1977 1978 usbd_status 1979 uhci_device_intr_start(usbd_xfer_handle xfer) 1980 { 1981 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1982 usbd_device_handle dev = upipe->pipe.device; 1983 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1984 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1985 uhci_soft_td_t *data, *dataend; 1986 uhci_soft_qh_t *sqh; 1987 usbd_status err; 1988 int i, s; 1989 1990 if (sc->sc_dying) 1991 return (USBD_IOERROR); 1992 1993 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1994 xfer, xfer->length, xfer->flags)); 1995 1996 #ifdef DIAGNOSTIC 1997 if (xfer->rqflags & URQ_REQUEST) 1998 panic("uhci_device_intr_transfer: a request\n"); 1999 #endif 2000 2001 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2002 &xfer->dmabuf, &data, &dataend); 2003 if (err) 2004 return (err); 2005 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2006 2007 #ifdef UHCI_DEBUG 2008 if (uhcidebug > 10) { 2009 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2010 uhci_dump_tds(data); 2011 uhci_dump_qh(upipe->u.intr.qhs[0]); 2012 } 2013 #endif 2014 2015 s = splusb(); 2016 /* Set up interrupt info. */ 2017 ii->xfer = xfer; 2018 ii->stdstart = data; 2019 ii->stdend = dataend; 2020 #ifdef DIAGNOSTIC 2021 if (!ii->isdone) { 2022 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2023 } 2024 ii->isdone = 0; 2025 #endif 2026 2027 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2028 upipe->u.intr.qhs[0])); 2029 for (i = 0; i < upipe->u.intr.npoll; i++) { 2030 sqh = upipe->u.intr.qhs[i]; 2031 sqh->elink = data; 2032 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2033 } 2034 uhci_add_intr_info(sc, ii); 2035 xfer->status = USBD_IN_PROGRESS; 2036 splx(s); 2037 2038 #ifdef UHCI_DEBUG 2039 if (uhcidebug > 10) { 2040 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2041 uhci_dump_tds(data); 2042 uhci_dump_qh(upipe->u.intr.qhs[0]); 2043 } 2044 #endif 2045 2046 return (USBD_IN_PROGRESS); 2047 } 2048 2049 /* Abort a device control request. */ 2050 void 2051 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2052 { 2053 DPRINTF(("uhci_device_ctrl_abort:\n")); 2054 uhci_abort_xfer(xfer, USBD_CANCELLED); 2055 } 2056 2057 /* Close a device control pipe. */ 2058 void 2059 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2060 { 2061 } 2062 2063 /* Abort a device interrupt request. */ 2064 void 2065 uhci_device_intr_abort(usbd_xfer_handle xfer) 2066 { 2067 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2068 if (xfer->pipe->intrxfer == xfer) { 2069 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2070 xfer->pipe->intrxfer = 0; 2071 } 2072 uhci_abort_xfer(xfer, USBD_CANCELLED); 2073 } 2074 2075 /* Close a device interrupt pipe. */ 2076 void 2077 uhci_device_intr_close(usbd_pipe_handle pipe) 2078 { 2079 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2080 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2081 int i, npoll; 2082 int s; 2083 2084 /* Unlink descriptors from controller data structures. */ 2085 npoll = upipe->u.intr.npoll; 2086 s = splusb(); 2087 for (i = 0; i < npoll; i++) 2088 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2089 splx(s); 2090 2091 /* 2092 * We now have to wait for any activity on the physical 2093 * descriptors to stop. 2094 */ 2095 usb_delay_ms(&sc->sc_bus, 2); 2096 2097 for(i = 0; i < npoll; i++) 2098 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2099 free(upipe->u.intr.qhs, M_USBHC); 2100 2101 /* XXX free other resources */ 2102 } 2103 2104 usbd_status 2105 uhci_device_request(usbd_xfer_handle xfer) 2106 { 2107 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2108 usb_device_request_t *req = &xfer->request; 2109 usbd_device_handle dev = upipe->pipe.device; 2110 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2111 int addr = dev->address; 2112 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2113 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2114 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2115 uhci_soft_qh_t *sqh; 2116 int len; 2117 u_int32_t ls; 2118 usbd_status err; 2119 int isread; 2120 int s; 2121 2122 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2123 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2124 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2125 UGETW(req->wIndex), UGETW(req->wLength), 2126 addr, endpt)); 2127 2128 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2129 isread = req->bmRequestType & UT_READ; 2130 len = UGETW(req->wLength); 2131 2132 setup = upipe->u.ctl.setup; 2133 stat = upipe->u.ctl.stat; 2134 sqh = upipe->u.ctl.sqh; 2135 2136 /* Set up data transaction */ 2137 if (len != 0) { 2138 upipe->nexttoggle = 1; 2139 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2140 &xfer->dmabuf, &data, &dataend); 2141 if (err) 2142 return (err); 2143 next = data; 2144 dataend->link.std = stat; 2145 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2146 } else { 2147 next = stat; 2148 } 2149 upipe->u.ctl.length = len; 2150 2151 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2152 2153 setup->link.std = next; 2154 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2155 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2156 UHCI_TD_ACTIVE); 2157 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2158 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2159 2160 stat->link.std = NULL; 2161 stat->td.td_link = htole32(UHCI_PTR_T); 2162 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2163 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2164 stat->td.td_token = 2165 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2166 UHCI_TD_IN (0, endpt, addr, 1)); 2167 stat->td.td_buffer = htole32(0); 2168 2169 #ifdef UHCI_DEBUG 2170 if (uhcidebug > 10) { 2171 DPRINTF(("uhci_device_request: before transfer\n")); 2172 uhci_dump_tds(setup); 2173 } 2174 #endif 2175 2176 /* Set up interrupt info. */ 2177 ii->xfer = xfer; 2178 ii->stdstart = setup; 2179 ii->stdend = stat; 2180 #ifdef DIAGNOSTIC 2181 if (!ii->isdone) { 2182 printf("uhci_device_request: not done, ii=%p\n", ii); 2183 } 2184 ii->isdone = 0; 2185 #endif 2186 2187 sqh->elink = setup; 2188 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2189 2190 s = splusb(); 2191 if (dev->lowspeed) 2192 uhci_add_ls_ctrl(sc, sqh); 2193 else 2194 uhci_add_hs_ctrl(sc, sqh); 2195 uhci_add_intr_info(sc, ii); 2196 #ifdef UHCI_DEBUG 2197 if (uhcidebug > 12) { 2198 uhci_soft_td_t *std; 2199 uhci_soft_qh_t *xqh; 2200 uhci_soft_qh_t *sxqh; 2201 int maxqh = 0; 2202 uhci_physaddr_t link; 2203 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2204 for (std = sc->sc_vframes[0].htd, link = 0; 2205 (link & UHCI_PTR_QH) == 0; 2206 std = std->link.std) { 2207 link = le32toh(std->td.td_link); 2208 uhci_dump_td(std); 2209 } 2210 sxqh = (uhci_soft_qh_t *)std; 2211 uhci_dump_qh(sxqh); 2212 for (xqh = sxqh; 2213 xqh != NULL; 2214 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2215 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2216 uhci_dump_qh(xqh); 2217 } 2218 DPRINTF(("Enqueued QH:\n")); 2219 uhci_dump_qh(sqh); 2220 uhci_dump_tds(sqh->elink); 2221 } 2222 #endif 2223 if (xfer->timeout && !sc->sc_bus.use_polling) { 2224 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2225 uhci_timeout, ii); 2226 } 2227 xfer->status = USBD_IN_PROGRESS; 2228 splx(s); 2229 2230 return (USBD_NORMAL_COMPLETION); 2231 } 2232 2233 usbd_status 2234 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2235 { 2236 usbd_status err; 2237 2238 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2239 2240 /* Put it on our queue, */ 2241 err = usb_insert_transfer(xfer); 2242 2243 /* bail out on error, */ 2244 if (err && err != USBD_IN_PROGRESS) 2245 return (err); 2246 2247 /* XXX should check inuse here */ 2248 2249 /* insert into schedule, */ 2250 uhci_device_isoc_enter(xfer); 2251 2252 /* and start if the pipe wasn't running */ 2253 if (!err) 2254 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2255 2256 return (err); 2257 } 2258 2259 void 2260 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2261 { 2262 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2263 usbd_device_handle dev = upipe->pipe.device; 2264 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2265 struct iso *iso = &upipe->u.iso; 2266 uhci_soft_td_t *std; 2267 u_int32_t buf, len, status; 2268 int s, i, next, nframes; 2269 2270 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2271 "nframes=%d\n", 2272 iso->inuse, iso->next, xfer, xfer->nframes)); 2273 2274 if (sc->sc_dying) 2275 return; 2276 2277 if (xfer->status == USBD_IN_PROGRESS) { 2278 /* This request has already been entered into the frame list */ 2279 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2280 /* XXX */ 2281 } 2282 2283 #ifdef DIAGNOSTIC 2284 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2285 printf("uhci_device_isoc_enter: overflow!\n"); 2286 #endif 2287 2288 next = iso->next; 2289 if (next == -1) { 2290 /* Not in use yet, schedule it a few frames ahead. */ 2291 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2292 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2293 } 2294 2295 xfer->status = USBD_IN_PROGRESS; 2296 UXFER(xfer)->curframe = next; 2297 2298 buf = DMAADDR(&xfer->dmabuf); 2299 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2300 UHCI_TD_ACTIVE | 2301 UHCI_TD_IOS); 2302 nframes = xfer->nframes; 2303 s = splusb(); 2304 for (i = 0; i < nframes; i++) { 2305 std = iso->stds[next]; 2306 if (++next >= UHCI_VFRAMELIST_COUNT) 2307 next = 0; 2308 len = xfer->frlengths[i]; 2309 std->td.td_buffer = htole32(buf); 2310 if (i == nframes - 1) 2311 status |= UHCI_TD_IOC; 2312 std->td.td_status = htole32(status); 2313 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2314 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2315 #ifdef UHCI_DEBUG 2316 if (uhcidebug > 5) { 2317 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2318 uhci_dump_td(std); 2319 } 2320 #endif 2321 buf += len; 2322 } 2323 iso->next = next; 2324 iso->inuse += xfer->nframes; 2325 2326 splx(s); 2327 } 2328 2329 usbd_status 2330 uhci_device_isoc_start(usbd_xfer_handle xfer) 2331 { 2332 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2333 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2334 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2335 uhci_soft_td_t *end; 2336 int s, i; 2337 2338 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2339 2340 if (sc->sc_dying) 2341 return (USBD_IOERROR); 2342 2343 #ifdef DIAGNOSTIC 2344 if (xfer->status != USBD_IN_PROGRESS) 2345 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2346 #endif 2347 2348 /* Find the last TD */ 2349 i = UXFER(xfer)->curframe + xfer->nframes; 2350 if (i >= UHCI_VFRAMELIST_COUNT) 2351 i -= UHCI_VFRAMELIST_COUNT; 2352 end = upipe->u.iso.stds[i]; 2353 2354 #ifdef DIAGNOSTIC 2355 if (end == NULL) { 2356 printf("uhci_device_isoc_start: end == NULL\n"); 2357 return (USBD_INVAL); 2358 } 2359 #endif 2360 2361 s = splusb(); 2362 2363 /* Set up interrupt info. */ 2364 ii->xfer = xfer; 2365 ii->stdstart = end; 2366 ii->stdend = end; 2367 #ifdef DIAGNOSTIC 2368 if (!ii->isdone) 2369 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2370 ii->isdone = 0; 2371 #endif 2372 uhci_add_intr_info(sc, ii); 2373 2374 splx(s); 2375 2376 return (USBD_IN_PROGRESS); 2377 } 2378 2379 void 2380 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2381 { 2382 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2383 uhci_soft_td_t **stds = upipe->u.iso.stds; 2384 uhci_soft_td_t *std; 2385 int i, n, s, nframes, maxlen, len; 2386 2387 s = splusb(); 2388 2389 /* Transfer is already done. */ 2390 if (xfer->status != USBD_NOT_STARTED && 2391 xfer->status != USBD_IN_PROGRESS) { 2392 splx(s); 2393 return; 2394 } 2395 2396 /* Give xfer the requested abort code. */ 2397 xfer->status = USBD_CANCELLED; 2398 2399 /* make hardware ignore it, */ 2400 nframes = xfer->nframes; 2401 n = UXFER(xfer)->curframe; 2402 maxlen = 0; 2403 for (i = 0; i < nframes; i++) { 2404 std = stds[n]; 2405 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2406 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2407 if (len > maxlen) 2408 maxlen = len; 2409 if (++n >= UHCI_VFRAMELIST_COUNT) 2410 n = 0; 2411 } 2412 2413 /* and wait until we are sure the hardware has finished. */ 2414 delay(maxlen); 2415 2416 #ifdef DIAGNOSTIC 2417 UXFER(xfer)->iinfo.isdone = 1; 2418 #endif 2419 /* Run callback and remove from interrupt list. */ 2420 usb_transfer_complete(xfer); 2421 2422 splx(s); 2423 } 2424 2425 void 2426 uhci_device_isoc_close(usbd_pipe_handle pipe) 2427 { 2428 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2429 usbd_device_handle dev = upipe->pipe.device; 2430 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2431 uhci_soft_td_t *std, *vstd; 2432 struct iso *iso; 2433 int i, s; 2434 2435 /* 2436 * Make sure all TDs are marked as inactive. 2437 * Wait for completion. 2438 * Unschedule. 2439 * Deallocate. 2440 */ 2441 iso = &upipe->u.iso; 2442 2443 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2444 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2445 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2446 2447 s = splusb(); 2448 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2449 std = iso->stds[i]; 2450 for (vstd = sc->sc_vframes[i].htd; 2451 vstd != NULL && vstd->link.std != std; 2452 vstd = vstd->link.std) 2453 ; 2454 if (vstd == NULL) { 2455 /*panic*/ 2456 printf("uhci_device_isoc_close: %p not found\n", std); 2457 splx(s); 2458 return; 2459 } 2460 vstd->link = std->link; 2461 vstd->td.td_link = std->td.td_link; 2462 uhci_free_std(sc, std); 2463 } 2464 splx(s); 2465 2466 free(iso->stds, M_USBHC); 2467 } 2468 2469 usbd_status 2470 uhci_setup_isoc(usbd_pipe_handle pipe) 2471 { 2472 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2473 usbd_device_handle dev = upipe->pipe.device; 2474 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2475 int addr = upipe->pipe.device->address; 2476 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2477 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2478 uhci_soft_td_t *std, *vstd; 2479 u_int32_t token; 2480 struct iso *iso; 2481 int i, s; 2482 2483 iso = &upipe->u.iso; 2484 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2485 M_USBHC, M_WAITOK); 2486 2487 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2488 UHCI_TD_OUT(0, endpt, addr, 0); 2489 2490 /* Allocate the TDs and mark as inactive; */ 2491 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2492 std = uhci_alloc_std(sc); 2493 if (std == 0) 2494 goto bad; 2495 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2496 std->td.td_token = htole32(token); 2497 iso->stds[i] = std; 2498 } 2499 2500 /* Insert TDs into schedule. */ 2501 s = splusb(); 2502 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2503 std = iso->stds[i]; 2504 vstd = sc->sc_vframes[i].htd; 2505 std->link = vstd->link; 2506 std->td.td_link = vstd->td.td_link; 2507 vstd->link.std = std; 2508 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2509 } 2510 splx(s); 2511 2512 iso->next = -1; 2513 iso->inuse = 0; 2514 2515 return (USBD_NORMAL_COMPLETION); 2516 2517 bad: 2518 while (--i >= 0) 2519 uhci_free_std(sc, iso->stds[i]); 2520 free(iso->stds, M_USBHC); 2521 return (USBD_NOMEM); 2522 } 2523 2524 void 2525 uhci_device_isoc_done(usbd_xfer_handle xfer) 2526 { 2527 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2528 2529 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2530 2531 if (ii->xfer != xfer) 2532 /* Not on interrupt list, ignore it. */ 2533 return; 2534 2535 #ifdef DIAGNOSTIC 2536 if (xfer->busy_free != XFER_BUSY) { 2537 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2538 xfer, xfer->busy_free); 2539 return; 2540 } 2541 2542 if (ii->stdend == NULL) { 2543 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2544 #ifdef UHCI_DEBUG 2545 uhci_dump_ii(ii); 2546 #endif 2547 return; 2548 } 2549 #endif 2550 2551 /* Turn off the interrupt since it is active even if the TD is not. */ 2552 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2553 2554 uhci_del_intr_info(ii); /* remove from active list */ 2555 } 2556 2557 void 2558 uhci_device_intr_done(usbd_xfer_handle xfer) 2559 { 2560 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2561 uhci_softc_t *sc = ii->sc; 2562 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2563 uhci_soft_qh_t *sqh; 2564 int i, npoll; 2565 2566 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2567 2568 npoll = upipe->u.intr.npoll; 2569 for(i = 0; i < npoll; i++) { 2570 sqh = upipe->u.intr.qhs[i]; 2571 sqh->elink = NULL; 2572 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2573 } 2574 uhci_free_std_chain(sc, ii->stdstart, 0); 2575 2576 /* XXX Wasteful. */ 2577 if (xfer->pipe->repeat) { 2578 uhci_soft_td_t *data, *dataend; 2579 2580 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2581 2582 /* This alloc cannot fail since we freed the chain above. */ 2583 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2584 &xfer->dmabuf, &data, &dataend); 2585 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2586 2587 #ifdef UHCI_DEBUG 2588 if (uhcidebug > 10) { 2589 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2590 uhci_dump_tds(data); 2591 uhci_dump_qh(upipe->u.intr.qhs[0]); 2592 } 2593 #endif 2594 2595 ii->stdstart = data; 2596 ii->stdend = dataend; 2597 #ifdef DIAGNOSTIC 2598 if (!ii->isdone) { 2599 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2600 } 2601 ii->isdone = 0; 2602 #endif 2603 for (i = 0; i < npoll; i++) { 2604 sqh = upipe->u.intr.qhs[i]; 2605 sqh->elink = data; 2606 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2607 } 2608 xfer->status = USBD_IN_PROGRESS; 2609 /* The ii is already on the examined list, just leave it. */ 2610 } else { 2611 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2612 uhci_del_intr_info(ii); 2613 } 2614 } 2615 2616 /* Deallocate request data structures */ 2617 void 2618 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2619 { 2620 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2621 uhci_softc_t *sc = ii->sc; 2622 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2623 2624 #ifdef DIAGNOSTIC 2625 if (!(xfer->rqflags & URQ_REQUEST)) 2626 panic("uhci_ctrl_done: not a request\n"); 2627 #endif 2628 2629 uhci_del_intr_info(ii); /* remove from active list */ 2630 2631 if (upipe->pipe.device->lowspeed) 2632 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2633 else 2634 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2635 2636 if (upipe->u.ctl.length != 0) 2637 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2638 2639 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2640 } 2641 2642 /* Deallocate request data structures */ 2643 void 2644 uhci_device_bulk_done(usbd_xfer_handle xfer) 2645 { 2646 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2647 uhci_softc_t *sc = ii->sc; 2648 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2649 2650 uhci_del_intr_info(ii); /* remove from active list */ 2651 2652 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2653 2654 uhci_free_std_chain(sc, ii->stdstart, 0); 2655 2656 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2657 } 2658 2659 /* Add interrupt QH, called with vflock. */ 2660 void 2661 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2662 { 2663 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2664 uhci_soft_qh_t *eqh; 2665 2666 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2667 2668 eqh = vf->eqh; 2669 sqh->hlink = eqh->hlink; 2670 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2671 eqh->hlink = sqh; 2672 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2673 vf->eqh = sqh; 2674 vf->bandwidth++; 2675 } 2676 2677 /* Remove interrupt QH. */ 2678 void 2679 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2680 { 2681 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2682 uhci_soft_qh_t *pqh; 2683 2684 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2685 2686 /* See comment in uhci_remove_ctrl() */ 2687 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2688 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2689 delay(UHCI_QH_REMOVE_DELAY); 2690 } 2691 2692 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2693 pqh->hlink = sqh->hlink; 2694 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2695 delay(UHCI_QH_REMOVE_DELAY); 2696 if (vf->eqh == sqh) 2697 vf->eqh = pqh; 2698 vf->bandwidth--; 2699 } 2700 2701 usbd_status 2702 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2703 { 2704 uhci_soft_qh_t *sqh; 2705 int i, npoll, s; 2706 u_int bestbw, bw, bestoffs, offs; 2707 2708 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2709 if (ival == 0) { 2710 printf("uhci_setintr: 0 interval\n"); 2711 return (USBD_INVAL); 2712 } 2713 2714 if (ival > UHCI_VFRAMELIST_COUNT) 2715 ival = UHCI_VFRAMELIST_COUNT; 2716 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2717 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2718 2719 upipe->u.intr.npoll = npoll; 2720 upipe->u.intr.qhs = 2721 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2722 2723 /* 2724 * Figure out which offset in the schedule that has most 2725 * bandwidth left over. 2726 */ 2727 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2728 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2729 for (bw = i = 0; i < npoll; i++) 2730 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2731 if (bw < bestbw) { 2732 bestbw = bw; 2733 bestoffs = offs; 2734 } 2735 } 2736 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2737 2738 for(i = 0; i < npoll; i++) { 2739 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2740 sqh->elink = NULL; 2741 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2742 sqh->pos = MOD(i * ival + bestoffs); 2743 } 2744 #undef MOD 2745 2746 s = splusb(); 2747 /* Enter QHs into the controller data structures. */ 2748 for(i = 0; i < npoll; i++) 2749 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2750 splx(s); 2751 2752 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2753 return (USBD_NORMAL_COMPLETION); 2754 } 2755 2756 /* Open a new pipe. */ 2757 usbd_status 2758 uhci_open(usbd_pipe_handle pipe) 2759 { 2760 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2761 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2762 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2763 usbd_status err; 2764 int ival; 2765 2766 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2767 pipe, pipe->device->address, 2768 ed->bEndpointAddress, sc->sc_addr)); 2769 2770 upipe->aborting = 0; 2771 upipe->nexttoggle = 0; 2772 2773 if (pipe->device->address == sc->sc_addr) { 2774 switch (ed->bEndpointAddress) { 2775 case USB_CONTROL_ENDPOINT: 2776 pipe->methods = &uhci_root_ctrl_methods; 2777 break; 2778 case UE_DIR_IN | UHCI_INTR_ENDPT: 2779 pipe->methods = &uhci_root_intr_methods; 2780 break; 2781 default: 2782 return (USBD_INVAL); 2783 } 2784 } else { 2785 switch (ed->bmAttributes & UE_XFERTYPE) { 2786 case UE_CONTROL: 2787 pipe->methods = &uhci_device_ctrl_methods; 2788 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2789 if (upipe->u.ctl.sqh == NULL) 2790 goto bad; 2791 upipe->u.ctl.setup = uhci_alloc_std(sc); 2792 if (upipe->u.ctl.setup == NULL) { 2793 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2794 goto bad; 2795 } 2796 upipe->u.ctl.stat = uhci_alloc_std(sc); 2797 if (upipe->u.ctl.stat == NULL) { 2798 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2799 uhci_free_std(sc, upipe->u.ctl.setup); 2800 goto bad; 2801 } 2802 err = usb_allocmem(&sc->sc_bus, 2803 sizeof(usb_device_request_t), 2804 0, &upipe->u.ctl.reqdma); 2805 if (err) { 2806 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2807 uhci_free_std(sc, upipe->u.ctl.setup); 2808 uhci_free_std(sc, upipe->u.ctl.stat); 2809 goto bad; 2810 } 2811 break; 2812 case UE_INTERRUPT: 2813 pipe->methods = &uhci_device_intr_methods; 2814 ival = pipe->interval; 2815 if (ival == USBD_DEFAULT_INTERVAL) 2816 ival = ed->bInterval; 2817 return (uhci_device_setintr(sc, upipe, ival)); 2818 case UE_ISOCHRONOUS: 2819 pipe->methods = &uhci_device_isoc_methods; 2820 return (uhci_setup_isoc(pipe)); 2821 case UE_BULK: 2822 pipe->methods = &uhci_device_bulk_methods; 2823 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2824 if (upipe->u.bulk.sqh == NULL) 2825 goto bad; 2826 break; 2827 } 2828 } 2829 return (USBD_NORMAL_COMPLETION); 2830 2831 bad: 2832 return (USBD_NOMEM); 2833 } 2834 2835 /* 2836 * Data structures and routines to emulate the root hub. 2837 */ 2838 usb_device_descriptor_t uhci_devd = { 2839 USB_DEVICE_DESCRIPTOR_SIZE, 2840 UDESC_DEVICE, /* type */ 2841 {0x00, 0x01}, /* USB version */ 2842 UDCLASS_HUB, /* class */ 2843 UDSUBCLASS_HUB, /* subclass */ 2844 0, /* protocol */ 2845 64, /* max packet */ 2846 {0},{0},{0x00,0x01}, /* device id */ 2847 1,2,0, /* string indicies */ 2848 1 /* # of configurations */ 2849 }; 2850 2851 usb_config_descriptor_t uhci_confd = { 2852 USB_CONFIG_DESCRIPTOR_SIZE, 2853 UDESC_CONFIG, 2854 {USB_CONFIG_DESCRIPTOR_SIZE + 2855 USB_INTERFACE_DESCRIPTOR_SIZE + 2856 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2857 1, 2858 1, 2859 0, 2860 UC_SELF_POWERED, 2861 0 /* max power */ 2862 }; 2863 2864 usb_interface_descriptor_t uhci_ifcd = { 2865 USB_INTERFACE_DESCRIPTOR_SIZE, 2866 UDESC_INTERFACE, 2867 0, 2868 0, 2869 1, 2870 UICLASS_HUB, 2871 UISUBCLASS_HUB, 2872 0, 2873 0 2874 }; 2875 2876 usb_endpoint_descriptor_t uhci_endpd = { 2877 USB_ENDPOINT_DESCRIPTOR_SIZE, 2878 UDESC_ENDPOINT, 2879 UE_DIR_IN | UHCI_INTR_ENDPT, 2880 UE_INTERRUPT, 2881 {8}, 2882 255 2883 }; 2884 2885 usb_hub_descriptor_t uhci_hubd_piix = { 2886 USB_HUB_DESCRIPTOR_SIZE, 2887 UDESC_HUB, 2888 2, 2889 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2890 50, /* power on to power good */ 2891 0, 2892 { 0x00 }, /* both ports are removable */ 2893 }; 2894 2895 int 2896 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2897 { 2898 int i; 2899 2900 if (l == 0) 2901 return (0); 2902 p->bLength = 2 * strlen(s) + 2; 2903 if (l == 1) 2904 return (1); 2905 p->bDescriptorType = UDESC_STRING; 2906 l -= 2; 2907 for (i = 0; s[i] && l > 1; i++, l -= 2) 2908 USETW2(p->bString[i], 0, s[i]); 2909 return (2*i+2); 2910 } 2911 2912 /* 2913 * Simulate a hardware hub by handling all the necessary requests. 2914 */ 2915 usbd_status 2916 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2917 { 2918 usbd_status err; 2919 2920 /* Insert last in queue. */ 2921 err = usb_insert_transfer(xfer); 2922 if (err) 2923 return (err); 2924 2925 /* 2926 * Pipe isn't running (otherwise err would be USBD_INPROG), 2927 * so start it first. 2928 */ 2929 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2930 } 2931 2932 usbd_status 2933 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2934 { 2935 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2936 usb_device_request_t *req; 2937 void *buf = NULL; 2938 int port, x; 2939 int s, len, value, index, status, change, l, totlen = 0; 2940 usb_port_status_t ps; 2941 usbd_status err; 2942 2943 if (sc->sc_dying) 2944 return (USBD_IOERROR); 2945 2946 #ifdef DIAGNOSTIC 2947 if (!(xfer->rqflags & URQ_REQUEST)) 2948 panic("uhci_root_ctrl_transfer: not a request\n"); 2949 #endif 2950 req = &xfer->request; 2951 2952 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2953 req->bmRequestType, req->bRequest)); 2954 2955 len = UGETW(req->wLength); 2956 value = UGETW(req->wValue); 2957 index = UGETW(req->wIndex); 2958 2959 if (len != 0) 2960 buf = KERNADDR(&xfer->dmabuf); 2961 2962 #define C(x,y) ((x) | ((y) << 8)) 2963 switch(C(req->bRequest, req->bmRequestType)) { 2964 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2965 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2966 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2967 /* 2968 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2969 * for the integrated root hub. 2970 */ 2971 break; 2972 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2973 if (len > 0) { 2974 *(u_int8_t *)buf = sc->sc_conf; 2975 totlen = 1; 2976 } 2977 break; 2978 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2979 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2980 switch(value >> 8) { 2981 case UDESC_DEVICE: 2982 if ((value & 0xff) != 0) { 2983 err = USBD_IOERROR; 2984 goto ret; 2985 } 2986 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2987 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2988 memcpy(buf, &uhci_devd, l); 2989 break; 2990 case UDESC_CONFIG: 2991 if ((value & 0xff) != 0) { 2992 err = USBD_IOERROR; 2993 goto ret; 2994 } 2995 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2996 memcpy(buf, &uhci_confd, l); 2997 buf = (char *)buf + l; 2998 len -= l; 2999 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3000 totlen += l; 3001 memcpy(buf, &uhci_ifcd, l); 3002 buf = (char *)buf + l; 3003 len -= l; 3004 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3005 totlen += l; 3006 memcpy(buf, &uhci_endpd, l); 3007 break; 3008 case UDESC_STRING: 3009 if (len == 0) 3010 break; 3011 *(u_int8_t *)buf = 0; 3012 totlen = 1; 3013 switch (value & 0xff) { 3014 case 1: /* Vendor */ 3015 totlen = uhci_str(buf, len, sc->sc_vendor); 3016 break; 3017 case 2: /* Product */ 3018 totlen = uhci_str(buf, len, "UHCI root hub"); 3019 break; 3020 } 3021 break; 3022 default: 3023 err = USBD_IOERROR; 3024 goto ret; 3025 } 3026 break; 3027 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3028 if (len > 0) { 3029 *(u_int8_t *)buf = 0; 3030 totlen = 1; 3031 } 3032 break; 3033 case C(UR_GET_STATUS, UT_READ_DEVICE): 3034 if (len > 1) { 3035 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3036 totlen = 2; 3037 } 3038 break; 3039 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3040 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3041 if (len > 1) { 3042 USETW(((usb_status_t *)buf)->wStatus, 0); 3043 totlen = 2; 3044 } 3045 break; 3046 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3047 if (value >= USB_MAX_DEVICES) { 3048 err = USBD_IOERROR; 3049 goto ret; 3050 } 3051 sc->sc_addr = value; 3052 break; 3053 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3054 if (value != 0 && value != 1) { 3055 err = USBD_IOERROR; 3056 goto ret; 3057 } 3058 sc->sc_conf = value; 3059 break; 3060 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3061 break; 3062 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3063 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3064 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3065 err = USBD_IOERROR; 3066 goto ret; 3067 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3068 break; 3069 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3070 break; 3071 /* Hub requests */ 3072 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3073 break; 3074 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3075 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3076 "port=%d feature=%d\n", 3077 index, value)); 3078 if (index == 1) 3079 port = UHCI_PORTSC1; 3080 else if (index == 2) 3081 port = UHCI_PORTSC2; 3082 else { 3083 err = USBD_IOERROR; 3084 goto ret; 3085 } 3086 switch(value) { 3087 case UHF_PORT_ENABLE: 3088 x = URWMASK(UREAD2(sc, port)); 3089 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3090 break; 3091 case UHF_PORT_SUSPEND: 3092 x = URWMASK(UREAD2(sc, port)); 3093 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3094 break; 3095 case UHF_PORT_RESET: 3096 x = URWMASK(UREAD2(sc, port)); 3097 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3098 break; 3099 case UHF_C_PORT_CONNECTION: 3100 x = URWMASK(UREAD2(sc, port)); 3101 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3102 break; 3103 case UHF_C_PORT_ENABLE: 3104 x = URWMASK(UREAD2(sc, port)); 3105 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3106 break; 3107 case UHF_C_PORT_OVER_CURRENT: 3108 x = URWMASK(UREAD2(sc, port)); 3109 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3110 break; 3111 case UHF_C_PORT_RESET: 3112 sc->sc_isreset = 0; 3113 err = USBD_NORMAL_COMPLETION; 3114 goto ret; 3115 case UHF_PORT_CONNECTION: 3116 case UHF_PORT_OVER_CURRENT: 3117 case UHF_PORT_POWER: 3118 case UHF_PORT_LOW_SPEED: 3119 case UHF_C_PORT_SUSPEND: 3120 default: 3121 err = USBD_IOERROR; 3122 goto ret; 3123 } 3124 break; 3125 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3126 if (index == 1) 3127 port = UHCI_PORTSC1; 3128 else if (index == 2) 3129 port = UHCI_PORTSC2; 3130 else { 3131 err = USBD_IOERROR; 3132 goto ret; 3133 } 3134 if (len > 0) { 3135 *(u_int8_t *)buf = 3136 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3137 UHCI_PORTSC_LS_SHIFT; 3138 totlen = 1; 3139 } 3140 break; 3141 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3142 if (value != 0) { 3143 err = USBD_IOERROR; 3144 goto ret; 3145 } 3146 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3147 totlen = l; 3148 memcpy(buf, &uhci_hubd_piix, l); 3149 break; 3150 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3151 if (len != 4) { 3152 err = USBD_IOERROR; 3153 goto ret; 3154 } 3155 memset(buf, 0, len); 3156 totlen = len; 3157 break; 3158 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3159 if (index == 1) 3160 port = UHCI_PORTSC1; 3161 else if (index == 2) 3162 port = UHCI_PORTSC2; 3163 else { 3164 err = USBD_IOERROR; 3165 goto ret; 3166 } 3167 if (len != 4) { 3168 err = USBD_IOERROR; 3169 goto ret; 3170 } 3171 x = UREAD2(sc, port); 3172 status = change = 0; 3173 if (x & UHCI_PORTSC_CCS) 3174 status |= UPS_CURRENT_CONNECT_STATUS; 3175 if (x & UHCI_PORTSC_CSC) 3176 change |= UPS_C_CONNECT_STATUS; 3177 if (x & UHCI_PORTSC_PE) 3178 status |= UPS_PORT_ENABLED; 3179 if (x & UHCI_PORTSC_POEDC) 3180 change |= UPS_C_PORT_ENABLED; 3181 if (x & UHCI_PORTSC_OCI) 3182 status |= UPS_OVERCURRENT_INDICATOR; 3183 if (x & UHCI_PORTSC_OCIC) 3184 change |= UPS_C_OVERCURRENT_INDICATOR; 3185 if (x & UHCI_PORTSC_SUSP) 3186 status |= UPS_SUSPEND; 3187 if (x & UHCI_PORTSC_LSDA) 3188 status |= UPS_LOW_SPEED; 3189 status |= UPS_PORT_POWER; 3190 if (sc->sc_isreset) 3191 change |= UPS_C_PORT_RESET; 3192 USETW(ps.wPortStatus, status); 3193 USETW(ps.wPortChange, change); 3194 l = min(len, sizeof ps); 3195 memcpy(buf, &ps, l); 3196 totlen = l; 3197 break; 3198 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3199 err = USBD_IOERROR; 3200 goto ret; 3201 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3202 break; 3203 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3204 if (index == 1) 3205 port = UHCI_PORTSC1; 3206 else if (index == 2) 3207 port = UHCI_PORTSC2; 3208 else { 3209 err = USBD_IOERROR; 3210 goto ret; 3211 } 3212 switch(value) { 3213 case UHF_PORT_ENABLE: 3214 x = URWMASK(UREAD2(sc, port)); 3215 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3216 break; 3217 case UHF_PORT_SUSPEND: 3218 x = URWMASK(UREAD2(sc, port)); 3219 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3220 break; 3221 case UHF_PORT_RESET: 3222 x = URWMASK(UREAD2(sc, port)); 3223 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3224 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3225 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3226 delay(100); 3227 x = UREAD2(sc, port); 3228 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3229 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3230 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3231 index, UREAD2(sc, port))); 3232 sc->sc_isreset = 1; 3233 break; 3234 case UHF_PORT_POWER: 3235 /* Pretend we turned on power */ 3236 err = USBD_NORMAL_COMPLETION; 3237 goto ret; 3238 case UHF_C_PORT_CONNECTION: 3239 case UHF_C_PORT_ENABLE: 3240 case UHF_C_PORT_OVER_CURRENT: 3241 case UHF_PORT_CONNECTION: 3242 case UHF_PORT_OVER_CURRENT: 3243 case UHF_PORT_LOW_SPEED: 3244 case UHF_C_PORT_SUSPEND: 3245 case UHF_C_PORT_RESET: 3246 default: 3247 err = USBD_IOERROR; 3248 goto ret; 3249 } 3250 break; 3251 default: 3252 err = USBD_IOERROR; 3253 goto ret; 3254 } 3255 xfer->actlen = totlen; 3256 err = USBD_NORMAL_COMPLETION; 3257 ret: 3258 xfer->status = err; 3259 s = splusb(); 3260 usb_transfer_complete(xfer); 3261 splx(s); 3262 return (USBD_IN_PROGRESS); 3263 } 3264 3265 /* Abort a root control request. */ 3266 void 3267 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3268 { 3269 /* Nothing to do, all transfers are synchronous. */ 3270 } 3271 3272 /* Close the root pipe. */ 3273 void 3274 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3275 { 3276 DPRINTF(("uhci_root_ctrl_close\n")); 3277 } 3278 3279 /* Abort a root interrupt request. */ 3280 void 3281 uhci_root_intr_abort(usbd_xfer_handle xfer) 3282 { 3283 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3284 3285 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3286 sc->sc_intr_xfer = NULL; 3287 3288 if (xfer->pipe->intrxfer == xfer) { 3289 DPRINTF(("uhci_root_intr_abort: remove\n")); 3290 xfer->pipe->intrxfer = 0; 3291 } 3292 xfer->status = USBD_CANCELLED; 3293 #ifdef DIAGNOSTIC 3294 UXFER(xfer)->iinfo.isdone = 1; 3295 #endif 3296 usb_transfer_complete(xfer); 3297 } 3298 3299 usbd_status 3300 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3301 { 3302 usbd_status err; 3303 3304 /* Insert last in queue. */ 3305 err = usb_insert_transfer(xfer); 3306 if (err) 3307 return (err); 3308 3309 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3310 * start first 3311 */ 3312 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3313 } 3314 3315 /* Start a transfer on the root interrupt pipe */ 3316 usbd_status 3317 uhci_root_intr_start(usbd_xfer_handle xfer) 3318 { 3319 usbd_pipe_handle pipe = xfer->pipe; 3320 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3321 3322 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3323 xfer, xfer->length, xfer->flags)); 3324 3325 if (sc->sc_dying) 3326 return (USBD_IOERROR); 3327 3328 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3329 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3330 sc->sc_intr_xfer = xfer; 3331 return (USBD_IN_PROGRESS); 3332 } 3333 3334 /* Close the root interrupt pipe. */ 3335 void 3336 uhci_root_intr_close(usbd_pipe_handle pipe) 3337 { 3338 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3339 3340 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3341 sc->sc_intr_xfer = NULL; 3342 DPRINTF(("uhci_root_intr_close\n")); 3343 } 3344