uhci.c revision 1.175
1 /* $NetBSD: uhci.c,v 1.175 2003/09/12 16:18:08 mycroft Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.175 2003/09/12 16:18:08 mycroft Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #if defined(DIAGNOSTIC) && defined(__i386__) 66 #include <machine/cpu.h> 67 #endif 68 #endif 69 #include <sys/proc.h> 70 #include <sys/queue.h> 71 72 #include <machine/bus.h> 73 #include <machine/endian.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdivar.h> 78 #include <dev/usb/usb_mem.h> 79 #include <dev/usb/usb_quirks.h> 80 81 #include <dev/usb/uhcireg.h> 82 #include <dev/usb/uhcivar.h> 83 84 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 85 /*#define UHCI_CTL_LOOP */ 86 87 #if defined(__FreeBSD__) 88 #include <machine/clock.h> 89 90 #define delay(d) DELAY(d) 91 #endif 92 93 #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__) || defined(__OpenBSD__) 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 usbd_status uhci_portreset(uhci_softc_t*, int); 164 Static void uhci_reset(uhci_softc_t *); 165 Static void uhci_shutdown(void *v); 166 Static void uhci_power(int, void *); 167 Static usbd_status uhci_run(uhci_softc_t *, int run); 168 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 169 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 170 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 171 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 172 #if 0 173 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 174 uhci_intr_info_t *); 175 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 176 #endif 177 178 Static void uhci_free_std_chain(uhci_softc_t *, 179 uhci_soft_td_t *, uhci_soft_td_t *); 180 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 181 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 182 uhci_soft_td_t **, uhci_soft_td_t **); 183 Static void uhci_poll_hub(void *); 184 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 185 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 186 Static void uhci_idone(uhci_intr_info_t *); 187 188 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 189 190 Static void uhci_timeout(void *); 191 Static void uhci_timeout_task(void *); 192 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 193 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 194 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 196 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 197 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 198 Static int uhci_str(usb_string_descriptor_t *, int, char *); 199 Static void uhci_add_loop(uhci_softc_t *sc); 200 Static void uhci_rem_loop(uhci_softc_t *sc); 201 202 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 203 Static void uhci_device_isoc_enter(usbd_xfer_handle); 204 205 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 206 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 207 208 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 209 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 210 211 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 212 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 213 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 214 Static void uhci_device_ctrl_close(usbd_pipe_handle); 215 Static void uhci_device_ctrl_done(usbd_xfer_handle); 216 217 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 218 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 219 Static void uhci_device_intr_abort(usbd_xfer_handle); 220 Static void uhci_device_intr_close(usbd_pipe_handle); 221 Static void uhci_device_intr_done(usbd_xfer_handle); 222 223 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 224 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 225 Static void uhci_device_bulk_abort(usbd_xfer_handle); 226 Static void uhci_device_bulk_close(usbd_pipe_handle); 227 Static void uhci_device_bulk_done(usbd_xfer_handle); 228 229 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 230 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 231 Static void uhci_device_isoc_abort(usbd_xfer_handle); 232 Static void uhci_device_isoc_close(usbd_pipe_handle); 233 Static void uhci_device_isoc_done(usbd_xfer_handle); 234 235 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 236 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 237 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 238 Static void uhci_root_ctrl_close(usbd_pipe_handle); 239 Static void uhci_root_ctrl_done(usbd_xfer_handle); 240 241 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 242 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 243 Static void uhci_root_intr_abort(usbd_xfer_handle); 244 Static void uhci_root_intr_close(usbd_pipe_handle); 245 Static void uhci_root_intr_done(usbd_xfer_handle); 246 247 Static usbd_status uhci_open(usbd_pipe_handle); 248 Static void uhci_poll(struct usbd_bus *); 249 Static void uhci_softintr(void *); 250 251 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 252 253 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 254 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 255 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 256 struct uhci_pipe *pipe, int ival); 257 258 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 259 Static void uhci_noop(usbd_pipe_handle pipe); 260 261 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 262 uhci_soft_qh_t *); 263 264 #ifdef UHCI_DEBUG 265 Static void uhci_dump_all(uhci_softc_t *); 266 Static void uhci_dumpregs(uhci_softc_t *); 267 Static void uhci_dump_qhs(uhci_soft_qh_t *); 268 Static void uhci_dump_qh(uhci_soft_qh_t *); 269 Static void uhci_dump_tds(uhci_soft_td_t *); 270 Static void uhci_dump_td(uhci_soft_td_t *); 271 Static void uhci_dump_ii(uhci_intr_info_t *ii); 272 void uhci_dump(void); 273 #endif 274 275 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 276 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 277 #define UWRITE1(sc, r, x) \ 278 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 279 } while (/*CONSTCOND*/0) 280 #define UWRITE2(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE4(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 287 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 288 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 289 290 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 291 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 292 293 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 294 295 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 296 297 #define UHCI_INTR_ENDPT 1 298 299 struct usbd_bus_methods uhci_bus_methods = { 300 uhci_open, 301 uhci_softintr, 302 uhci_poll, 303 uhci_allocm, 304 uhci_freem, 305 uhci_allocx, 306 uhci_freex, 307 }; 308 309 struct usbd_pipe_methods uhci_root_ctrl_methods = { 310 uhci_root_ctrl_transfer, 311 uhci_root_ctrl_start, 312 uhci_root_ctrl_abort, 313 uhci_root_ctrl_close, 314 uhci_noop, 315 uhci_root_ctrl_done, 316 }; 317 318 struct usbd_pipe_methods uhci_root_intr_methods = { 319 uhci_root_intr_transfer, 320 uhci_root_intr_start, 321 uhci_root_intr_abort, 322 uhci_root_intr_close, 323 uhci_noop, 324 uhci_root_intr_done, 325 }; 326 327 struct usbd_pipe_methods uhci_device_ctrl_methods = { 328 uhci_device_ctrl_transfer, 329 uhci_device_ctrl_start, 330 uhci_device_ctrl_abort, 331 uhci_device_ctrl_close, 332 uhci_noop, 333 uhci_device_ctrl_done, 334 }; 335 336 struct usbd_pipe_methods uhci_device_intr_methods = { 337 uhci_device_intr_transfer, 338 uhci_device_intr_start, 339 uhci_device_intr_abort, 340 uhci_device_intr_close, 341 uhci_device_clear_toggle, 342 uhci_device_intr_done, 343 }; 344 345 struct usbd_pipe_methods uhci_device_bulk_methods = { 346 uhci_device_bulk_transfer, 347 uhci_device_bulk_start, 348 uhci_device_bulk_abort, 349 uhci_device_bulk_close, 350 uhci_device_clear_toggle, 351 uhci_device_bulk_done, 352 }; 353 354 struct usbd_pipe_methods uhci_device_isoc_methods = { 355 uhci_device_isoc_transfer, 356 uhci_device_isoc_start, 357 uhci_device_isoc_abort, 358 uhci_device_isoc_close, 359 uhci_noop, 360 uhci_device_isoc_done, 361 }; 362 363 #define uhci_add_intr_info(sc, ii) \ 364 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 365 #define uhci_del_intr_info(ii) \ 366 do { \ 367 LIST_REMOVE((ii), list); \ 368 (ii)->list.le_prev = NULL; \ 369 } while (0) 370 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 371 372 Static __inline__ uhci_soft_qh_t * 373 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 374 { 375 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 376 377 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 378 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 379 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 380 printf("uhci_find_prev_qh: QH not found\n"); 381 return (NULL); 382 } 383 #endif 384 } 385 return (pqh); 386 } 387 388 void 389 uhci_globalreset(uhci_softc_t *sc) 390 { 391 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 392 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 393 UHCICMD(sc, 0); /* do nothing */ 394 } 395 396 usbd_status 397 uhci_init(uhci_softc_t *sc) 398 { 399 usbd_status err; 400 int i, j; 401 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 402 uhci_soft_td_t *std; 403 404 DPRINTFN(1,("uhci_init: start\n")); 405 406 #ifdef UHCI_DEBUG 407 thesc = sc; 408 409 if (uhcidebug > 2) 410 uhci_dumpregs(sc); 411 #endif 412 413 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 414 uhci_globalreset(sc); /* reset the controller */ 415 uhci_reset(sc); 416 417 /* Allocate and initialize real frame array. */ 418 err = usb_allocmem(&sc->sc_bus, 419 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 420 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 421 if (err) 422 return (err); 423 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 424 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 425 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 426 427 /* 428 * Allocate a TD, inactive, that hangs from the last QH. 429 * This is to avoid a bug in the PIIX that makes it run berserk 430 * otherwise. 431 */ 432 std = uhci_alloc_std(sc); 433 if (std == NULL) 434 return (USBD_NOMEM); 435 std->link.std = NULL; 436 std->td.td_link = htole32(UHCI_PTR_T); 437 std->td.td_status = htole32(0); /* inactive */ 438 std->td.td_token = htole32(0); 439 std->td.td_buffer = htole32(0); 440 441 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 442 lsqh = uhci_alloc_sqh(sc); 443 if (lsqh == NULL) 444 return (USBD_NOMEM); 445 lsqh->hlink = NULL; 446 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 447 lsqh->elink = std; 448 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 449 sc->sc_last_qh = lsqh; 450 451 /* Allocate the dummy QH where bulk traffic will be queued. */ 452 bsqh = uhci_alloc_sqh(sc); 453 if (bsqh == NULL) 454 return (USBD_NOMEM); 455 bsqh->hlink = lsqh; 456 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 457 bsqh->elink = NULL; 458 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 459 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 460 461 /* Allocate dummy QH where high speed control traffic will be queued. */ 462 chsqh = uhci_alloc_sqh(sc); 463 if (chsqh == NULL) 464 return (USBD_NOMEM); 465 chsqh->hlink = bsqh; 466 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 467 chsqh->elink = NULL; 468 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 469 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 470 471 /* Allocate dummy QH where control traffic will be queued. */ 472 clsqh = uhci_alloc_sqh(sc); 473 if (clsqh == NULL) 474 return (USBD_NOMEM); 475 clsqh->hlink = bsqh; 476 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 477 clsqh->elink = NULL; 478 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 479 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 480 481 /* 482 * Make all (virtual) frame list pointers point to the interrupt 483 * queue heads and the interrupt queue heads at the control 484 * queue head and point the physical frame list to the virtual. 485 */ 486 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 487 std = uhci_alloc_std(sc); 488 sqh = uhci_alloc_sqh(sc); 489 if (std == NULL || sqh == NULL) 490 return (USBD_NOMEM); 491 std->link.sqh = sqh; 492 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 493 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 494 std->td.td_token = htole32(0); 495 std->td.td_buffer = htole32(0); 496 sqh->hlink = clsqh; 497 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 498 sqh->elink = NULL; 499 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 500 sc->sc_vframes[i].htd = std; 501 sc->sc_vframes[i].etd = std; 502 sc->sc_vframes[i].hqh = sqh; 503 sc->sc_vframes[i].eqh = sqh; 504 for (j = i; 505 j < UHCI_FRAMELIST_COUNT; 506 j += UHCI_VFRAMELIST_COUNT) 507 sc->sc_pframes[j] = htole32(std->physaddr); 508 } 509 510 LIST_INIT(&sc->sc_intrhead); 511 512 SIMPLEQ_INIT(&sc->sc_free_xfers); 513 514 usb_callout_init(sc->sc_poll_handle); 515 516 /* Set up the bus struct. */ 517 sc->sc_bus.methods = &uhci_bus_methods; 518 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 519 520 #if defined(__NetBSD__) || defined(__OpenBSD__) 521 sc->sc_suspend = PWR_RESUME; 522 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 523 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 524 #endif 525 526 DPRINTFN(1,("uhci_init: enabling\n")); 527 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 528 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 529 530 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 531 532 return (uhci_run(sc, 1)); /* and here we go... */ 533 } 534 535 #if defined(__NetBSD__) || defined(__OpenBSD__) 536 int 537 uhci_activate(device_ptr_t self, enum devact act) 538 { 539 struct uhci_softc *sc = (struct uhci_softc *)self; 540 int rv = 0; 541 542 switch (act) { 543 case DVACT_ACTIVATE: 544 return (EOPNOTSUPP); 545 546 case DVACT_DEACTIVATE: 547 if (sc->sc_child != NULL) 548 rv = config_deactivate(sc->sc_child); 549 break; 550 } 551 return (rv); 552 } 553 554 int 555 uhci_detach(struct uhci_softc *sc, int flags) 556 { 557 usbd_xfer_handle xfer; 558 int rv = 0; 559 560 if (sc->sc_child != NULL) 561 rv = config_detach(sc->sc_child, flags); 562 563 if (rv != 0) 564 return (rv); 565 566 #if defined(__NetBSD__) || defined(__OpenBSD__) 567 powerhook_disestablish(sc->sc_powerhook); 568 shutdownhook_disestablish(sc->sc_shutdownhook); 569 #endif 570 571 /* Free all xfers associated with this HC. */ 572 for (;;) { 573 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 574 if (xfer == NULL) 575 break; 576 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 577 free(xfer, M_USB); 578 } 579 580 /* XXX free other data structures XXX */ 581 582 return (rv); 583 } 584 #endif 585 586 usbd_status 587 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 588 { 589 struct uhci_softc *sc = (struct uhci_softc *)bus; 590 u_int32_t n; 591 592 /* 593 * XXX 594 * Since we are allocating a buffer we can assume that we will 595 * need TDs for it. Since we don't want to allocate those from 596 * an interrupt context, we allocate them here and free them again. 597 * This is no guarantee that we'll get the TDs next time... 598 */ 599 n = size / 8; 600 if (n > 16) { 601 u_int32_t i; 602 uhci_soft_td_t **stds; 603 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 604 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 605 M_WAITOK|M_ZERO); 606 for(i=0; i < n; i++) 607 stds[i] = uhci_alloc_std(sc); 608 for(i=0; i < n; i++) 609 if (stds[i] != NULL) 610 uhci_free_std(sc, stds[i]); 611 free(stds, M_TEMP); 612 } 613 614 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 615 } 616 617 void 618 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 619 { 620 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 621 } 622 623 usbd_xfer_handle 624 uhci_allocx(struct usbd_bus *bus) 625 { 626 struct uhci_softc *sc = (struct uhci_softc *)bus; 627 usbd_xfer_handle xfer; 628 629 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 630 if (xfer != NULL) { 631 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 632 #ifdef DIAGNOSTIC 633 if (xfer->busy_free != XFER_FREE) { 634 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 635 xfer->busy_free); 636 } 637 #endif 638 } else { 639 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 640 } 641 if (xfer != NULL) { 642 memset(xfer, 0, sizeof (struct uhci_xfer)); 643 UXFER(xfer)->iinfo.sc = sc; 644 #ifdef DIAGNOSTIC 645 UXFER(xfer)->iinfo.isdone = 1; 646 xfer->busy_free = XFER_BUSY; 647 #endif 648 } 649 return (xfer); 650 } 651 652 void 653 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 654 { 655 struct uhci_softc *sc = (struct uhci_softc *)bus; 656 657 #ifdef DIAGNOSTIC 658 if (xfer->busy_free != XFER_BUSY) { 659 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 660 xfer->busy_free); 661 return; 662 } 663 xfer->busy_free = XFER_FREE; 664 if (!UXFER(xfer)->iinfo.isdone) { 665 printf("uhci_freex: !isdone\n"); 666 return; 667 } 668 #endif 669 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 670 } 671 672 /* 673 * Shut down the controller when the system is going down. 674 */ 675 void 676 uhci_shutdown(void *v) 677 { 678 uhci_softc_t *sc = v; 679 680 DPRINTF(("uhci_shutdown: stopping the HC\n")); 681 uhci_run(sc, 0); /* stop the controller */ 682 } 683 684 /* 685 * Handle suspend/resume. 686 * 687 * We need to switch to polling mode here, because this routine is 688 * called from an interrupt context. This is all right since we 689 * are almost suspended anyway. 690 */ 691 void 692 uhci_power(int why, void *v) 693 { 694 uhci_softc_t *sc = v; 695 int cmd; 696 int s; 697 698 s = splhardusb(); 699 cmd = UREAD2(sc, UHCI_CMD); 700 701 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 702 sc, why, sc->sc_suspend, cmd)); 703 704 switch (why) { 705 case PWR_SUSPEND: 706 case PWR_STANDBY: 707 #ifdef UHCI_DEBUG 708 if (uhcidebug > 2) 709 uhci_dumpregs(sc); 710 #endif 711 if (sc->sc_intr_xfer != NULL) 712 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 713 sc->sc_intr_xfer); 714 sc->sc_bus.use_polling++; 715 uhci_run(sc, 0); /* stop the controller */ 716 717 /* save some state if BIOS doesn't */ 718 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 719 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 720 721 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 722 723 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 724 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 725 sc->sc_suspend = why; 726 sc->sc_bus.use_polling--; 727 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 728 break; 729 case PWR_RESUME: 730 #ifdef DIAGNOSTIC 731 if (sc->sc_suspend == PWR_RESUME) 732 printf("uhci_power: weird, resume without suspend.\n"); 733 #endif 734 sc->sc_bus.use_polling++; 735 sc->sc_suspend = why; 736 if (cmd & UHCI_CMD_RS) 737 uhci_run(sc, 0); /* in case BIOS has started it */ 738 739 /* restore saved state */ 740 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 741 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 742 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 743 744 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 746 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 747 UHCICMD(sc, UHCI_CMD_MAXP); 748 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 749 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 750 uhci_run(sc, 1); /* and start traffic again */ 751 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 752 sc->sc_bus.use_polling--; 753 if (sc->sc_intr_xfer != NULL) 754 usb_callout(sc->sc_poll_handle, sc->sc_ival, 755 uhci_poll_hub, sc->sc_intr_xfer); 756 #ifdef UHCI_DEBUG 757 if (uhcidebug > 2) 758 uhci_dumpregs(sc); 759 #endif 760 break; 761 case PWR_SOFTSUSPEND: 762 case PWR_SOFTSTANDBY: 763 case PWR_SOFTRESUME: 764 break; 765 } 766 splx(s); 767 } 768 769 #ifdef UHCI_DEBUG 770 Static void 771 uhci_dumpregs(uhci_softc_t *sc) 772 { 773 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 774 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 775 USBDEVNAME(sc->sc_bus.bdev), 776 UREAD2(sc, UHCI_CMD), 777 UREAD2(sc, UHCI_STS), 778 UREAD2(sc, UHCI_INTR), 779 UREAD2(sc, UHCI_FRNUM), 780 UREAD4(sc, UHCI_FLBASEADDR), 781 UREAD1(sc, UHCI_SOF), 782 UREAD2(sc, UHCI_PORTSC1), 783 UREAD2(sc, UHCI_PORTSC2))); 784 } 785 786 void 787 uhci_dump_td(uhci_soft_td_t *p) 788 { 789 char sbuf[128], sbuf2[128]; 790 791 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 792 "token=0x%08lx buffer=0x%08lx\n", 793 p, (long)p->physaddr, 794 (long)le32toh(p->td.td_link), 795 (long)le32toh(p->td.td_status), 796 (long)le32toh(p->td.td_token), 797 (long)le32toh(p->td.td_buffer))); 798 799 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 800 sbuf, sizeof(sbuf)); 801 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 802 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 803 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 804 sbuf2, sizeof(sbuf2)); 805 806 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 807 "D=%d,maxlen=%d\n", sbuf, sbuf2, 808 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 809 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 810 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 811 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 812 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 813 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 814 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 815 } 816 817 void 818 uhci_dump_qh(uhci_soft_qh_t *sqh) 819 { 820 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 821 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 822 le32toh(sqh->qh.qh_elink))); 823 } 824 825 826 #if 1 827 void 828 uhci_dump(void) 829 { 830 uhci_dump_all(thesc); 831 } 832 #endif 833 834 void 835 uhci_dump_all(uhci_softc_t *sc) 836 { 837 uhci_dumpregs(sc); 838 printf("intrs=%d\n", sc->sc_bus.no_intrs); 839 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 840 uhci_dump_qh(sc->sc_lctl_start); 841 } 842 843 844 void 845 uhci_dump_qhs(uhci_soft_qh_t *sqh) 846 { 847 uhci_dump_qh(sqh); 848 849 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 850 * Traverses sideways first, then down. 851 * 852 * QH1 853 * QH2 854 * No QH 855 * TD2.1 856 * TD2.2 857 * TD1.1 858 * etc. 859 * 860 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 861 */ 862 863 864 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 865 uhci_dump_qhs(sqh->hlink); 866 else 867 DPRINTF(("No QH\n")); 868 869 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 870 uhci_dump_tds(sqh->elink); 871 else 872 DPRINTF(("No TD\n")); 873 } 874 875 void 876 uhci_dump_tds(uhci_soft_td_t *std) 877 { 878 uhci_soft_td_t *td; 879 880 for(td = std; td != NULL; td = td->link.std) { 881 uhci_dump_td(td); 882 883 /* Check whether the link pointer in this TD marks 884 * the link pointer as end of queue. This avoids 885 * printing the free list in case the queue/TD has 886 * already been moved there (seatbelt). 887 */ 888 if (le32toh(td->td.td_link) & UHCI_PTR_T || 889 le32toh(td->td.td_link) == 0) 890 break; 891 } 892 } 893 894 Static void 895 uhci_dump_ii(uhci_intr_info_t *ii) 896 { 897 usbd_pipe_handle pipe; 898 usb_endpoint_descriptor_t *ed; 899 usbd_device_handle dev; 900 901 #ifdef DIAGNOSTIC 902 #define DONE ii->isdone 903 #else 904 #define DONE 0 905 #endif 906 if (ii == NULL) { 907 printf("ii NULL\n"); 908 return; 909 } 910 if (ii->xfer == NULL) { 911 printf("ii %p: done=%d xfer=NULL\n", 912 ii, DONE); 913 return; 914 } 915 pipe = ii->xfer->pipe; 916 if (pipe == NULL) { 917 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 918 ii, DONE, ii->xfer); 919 return; 920 } 921 if (pipe->endpoint == NULL) { 922 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 923 ii, DONE, ii->xfer, pipe); 924 return; 925 } 926 if (pipe->device == NULL) { 927 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 928 ii, DONE, ii->xfer, pipe); 929 return; 930 } 931 ed = pipe->endpoint->edesc; 932 dev = pipe->device; 933 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", 934 ii, DONE, ii->xfer, dev, 935 UGETW(dev->ddesc.idVendor), 936 UGETW(dev->ddesc.idProduct), 937 dev->address, pipe, 938 ed->bEndpointAddress, ed->bmAttributes); 939 #undef DONE 940 } 941 942 void uhci_dump_iis(struct uhci_softc *sc); 943 void 944 uhci_dump_iis(struct uhci_softc *sc) 945 { 946 uhci_intr_info_t *ii; 947 948 printf("intr_info list:\n"); 949 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 950 uhci_dump_ii(ii); 951 } 952 953 void iidump(void); 954 void iidump(void) { uhci_dump_iis(thesc); } 955 956 #endif 957 958 /* 959 * This routine is executed periodically and simulates interrupts 960 * from the root controller interrupt pipe for port status change. 961 */ 962 void 963 uhci_poll_hub(void *addr) 964 { 965 usbd_xfer_handle xfer = addr; 966 usbd_pipe_handle pipe = xfer->pipe; 967 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 968 int s; 969 u_char *p; 970 971 DPRINTFN(20, ("uhci_poll_hub\n")); 972 973 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 974 975 p = KERNADDR(&xfer->dmabuf, 0); 976 p[0] = 0; 977 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 978 p[0] |= 1<<1; 979 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 980 p[0] |= 1<<2; 981 if (p[0] == 0) 982 /* No change, try again in a while */ 983 return; 984 985 xfer->actlen = 1; 986 xfer->status = USBD_NORMAL_COMPLETION; 987 s = splusb(); 988 xfer->device->bus->intr_context++; 989 usb_transfer_complete(xfer); 990 xfer->device->bus->intr_context--; 991 splx(s); 992 } 993 994 void 995 uhci_root_intr_done(usbd_xfer_handle xfer) 996 { 997 } 998 999 void 1000 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1001 { 1002 } 1003 1004 /* 1005 * Let the last QH loop back to the high speed control transfer QH. 1006 * This is what intel calls "bandwidth reclamation" and improves 1007 * USB performance a lot for some devices. 1008 * If we are already looping, just count it. 1009 */ 1010 void 1011 uhci_add_loop(uhci_softc_t *sc) { 1012 #ifdef UHCI_DEBUG 1013 if (uhcinoloop) 1014 return; 1015 #endif 1016 if (++sc->sc_loops == 1) { 1017 DPRINTFN(5,("uhci_start_loop: add\n")); 1018 /* Note, we don't loop back the soft pointer. */ 1019 sc->sc_last_qh->qh.qh_hlink = 1020 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1021 } 1022 } 1023 1024 void 1025 uhci_rem_loop(uhci_softc_t *sc) { 1026 #ifdef UHCI_DEBUG 1027 if (uhcinoloop) 1028 return; 1029 #endif 1030 if (--sc->sc_loops == 0) { 1031 DPRINTFN(5,("uhci_end_loop: remove\n")); 1032 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1033 } 1034 } 1035 1036 /* Add high speed control QH, called at splusb(). */ 1037 void 1038 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1039 { 1040 uhci_soft_qh_t *eqh; 1041 1042 SPLUSBCHECK; 1043 1044 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1045 eqh = sc->sc_hctl_end; 1046 sqh->hlink = eqh->hlink; 1047 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1048 eqh->hlink = sqh; 1049 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1050 sc->sc_hctl_end = sqh; 1051 #ifdef UHCI_CTL_LOOP 1052 uhci_add_loop(sc); 1053 #endif 1054 } 1055 1056 /* Remove high speed control QH, called at splusb(). */ 1057 void 1058 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1059 { 1060 uhci_soft_qh_t *pqh; 1061 1062 SPLUSBCHECK; 1063 1064 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1065 #ifdef UHCI_CTL_LOOP 1066 uhci_rem_loop(sc); 1067 #endif 1068 /* 1069 * The T bit should be set in the elink of the QH so that the HC 1070 * doesn't follow the pointer. This condition may fail if the 1071 * the transferred packet was short so that the QH still points 1072 * at the last used TD. 1073 * In this case we set the T bit and wait a little for the HC 1074 * to stop looking at the TD. 1075 */ 1076 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1077 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1078 delay(UHCI_QH_REMOVE_DELAY); 1079 } 1080 1081 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1082 pqh->hlink = sqh->hlink; 1083 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1084 delay(UHCI_QH_REMOVE_DELAY); 1085 if (sc->sc_hctl_end == sqh) 1086 sc->sc_hctl_end = pqh; 1087 } 1088 1089 /* Add low speed control QH, called at splusb(). */ 1090 void 1091 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1092 { 1093 uhci_soft_qh_t *eqh; 1094 1095 SPLUSBCHECK; 1096 1097 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1098 eqh = sc->sc_lctl_end; 1099 sqh->hlink = eqh->hlink; 1100 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1101 eqh->hlink = sqh; 1102 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1103 sc->sc_lctl_end = sqh; 1104 } 1105 1106 /* Remove low speed control QH, called at splusb(). */ 1107 void 1108 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1109 { 1110 uhci_soft_qh_t *pqh; 1111 1112 SPLUSBCHECK; 1113 1114 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1115 /* See comment in uhci_remove_hs_ctrl() */ 1116 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1117 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1118 delay(UHCI_QH_REMOVE_DELAY); 1119 } 1120 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1121 pqh->hlink = sqh->hlink; 1122 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1123 delay(UHCI_QH_REMOVE_DELAY); 1124 if (sc->sc_lctl_end == sqh) 1125 sc->sc_lctl_end = pqh; 1126 } 1127 1128 /* Add bulk QH, called at splusb(). */ 1129 void 1130 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1131 { 1132 uhci_soft_qh_t *eqh; 1133 1134 SPLUSBCHECK; 1135 1136 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1137 eqh = sc->sc_bulk_end; 1138 sqh->hlink = eqh->hlink; 1139 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1140 eqh->hlink = sqh; 1141 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1142 sc->sc_bulk_end = sqh; 1143 uhci_add_loop(sc); 1144 } 1145 1146 /* Remove bulk QH, called at splusb(). */ 1147 void 1148 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1149 { 1150 uhci_soft_qh_t *pqh; 1151 1152 SPLUSBCHECK; 1153 1154 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1155 uhci_rem_loop(sc); 1156 /* See comment in uhci_remove_hs_ctrl() */ 1157 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1158 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1159 delay(UHCI_QH_REMOVE_DELAY); 1160 } 1161 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1162 pqh->hlink = sqh->hlink; 1163 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1164 delay(UHCI_QH_REMOVE_DELAY); 1165 if (sc->sc_bulk_end == sqh) 1166 sc->sc_bulk_end = pqh; 1167 } 1168 1169 Static int uhci_intr1(uhci_softc_t *); 1170 1171 int 1172 uhci_intr(void *arg) 1173 { 1174 uhci_softc_t *sc = arg; 1175 1176 if (sc->sc_dying) 1177 return (0); 1178 1179 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1180 if (sc->sc_bus.use_polling) { 1181 #ifdef DIAGNOSTIC 1182 printf("uhci_intr: ignored interrupt while polling\n"); 1183 #endif 1184 return (0); 1185 } 1186 return (uhci_intr1(sc)); 1187 } 1188 1189 int 1190 uhci_intr1(uhci_softc_t *sc) 1191 { 1192 int status; 1193 int ack; 1194 1195 #ifdef UHCI_DEBUG 1196 if (uhcidebug > 15) { 1197 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1198 uhci_dumpregs(sc); 1199 } 1200 #endif 1201 1202 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1203 if (status == 0) /* The interrupt was not for us. */ 1204 return (0); 1205 1206 if (sc->sc_suspend != PWR_RESUME) { 1207 printf("%s: interrupt while not operating ignored\n", 1208 USBDEVNAME(sc->sc_bus.bdev)); 1209 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1210 return (0); 1211 } 1212 1213 ack = 0; 1214 if (status & UHCI_STS_USBINT) 1215 ack |= UHCI_STS_USBINT; 1216 if (status & UHCI_STS_USBEI) 1217 ack |= UHCI_STS_USBEI; 1218 if (status & UHCI_STS_RD) { 1219 ack |= UHCI_STS_RD; 1220 #ifdef UHCI_DEBUG 1221 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1222 #endif 1223 } 1224 if (status & UHCI_STS_HSE) { 1225 ack |= UHCI_STS_HSE; 1226 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1227 } 1228 if (status & UHCI_STS_HCPE) { 1229 ack |= UHCI_STS_HCPE; 1230 printf("%s: host controller process error\n", 1231 USBDEVNAME(sc->sc_bus.bdev)); 1232 } 1233 if (status & UHCI_STS_HCH) { 1234 /* no acknowledge needed */ 1235 if (!sc->sc_dying) { 1236 printf("%s: host controller halted\n", 1237 USBDEVNAME(sc->sc_bus.bdev)); 1238 #ifdef UHCI_DEBUG 1239 uhci_dump_all(sc); 1240 #endif 1241 } 1242 sc->sc_dying = 1; 1243 } 1244 1245 if (!ack) 1246 return (0); /* nothing to acknowledge */ 1247 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1248 1249 sc->sc_bus.no_intrs++; 1250 usb_schedsoftintr(&sc->sc_bus); 1251 1252 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1253 1254 return (1); 1255 } 1256 1257 void 1258 uhci_softintr(void *v) 1259 { 1260 uhci_softc_t *sc = v; 1261 uhci_intr_info_t *ii; 1262 1263 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1264 sc->sc_bus.intr_context)); 1265 1266 sc->sc_bus.intr_context++; 1267 1268 /* 1269 * Interrupts on UHCI really suck. When the host controller 1270 * interrupts because a transfer is completed there is no 1271 * way of knowing which transfer it was. You can scan down 1272 * the TDs and QHs of the previous frame to limit the search, 1273 * but that assumes that the interrupt was not delayed by more 1274 * than 1 ms, which may not always be true (e.g. after debug 1275 * output on a slow console). 1276 * We scan all interrupt descriptors to see if any have 1277 * completed. 1278 */ 1279 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1280 uhci_check_intr(sc, ii); 1281 1282 #ifdef USB_USE_SOFTINTR 1283 if (sc->sc_softwake) { 1284 sc->sc_softwake = 0; 1285 wakeup(&sc->sc_softwake); 1286 } 1287 #endif /* USB_USE_SOFTINTR */ 1288 1289 sc->sc_bus.intr_context--; 1290 } 1291 1292 /* Check for an interrupt. */ 1293 void 1294 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1295 { 1296 uhci_soft_td_t *std, *lstd; 1297 u_int32_t status; 1298 1299 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1300 #ifdef DIAGNOSTIC 1301 if (ii == NULL) { 1302 printf("uhci_check_intr: no ii? %p\n", ii); 1303 return; 1304 } 1305 #endif 1306 if (ii->xfer->status == USBD_CANCELLED || 1307 ii->xfer->status == USBD_TIMEOUT) { 1308 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1309 return; 1310 } 1311 1312 if (ii->stdstart == NULL) 1313 return; 1314 lstd = ii->stdend; 1315 #ifdef DIAGNOSTIC 1316 if (lstd == NULL) { 1317 printf("uhci_check_intr: std==0\n"); 1318 return; 1319 } 1320 #endif 1321 /* 1322 * If the last TD is still active we need to check whether there 1323 * is a an error somewhere in the middle, or whether there was a 1324 * short packet (SPD and not ACTIVE). 1325 */ 1326 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1327 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1328 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1329 status = le32toh(std->td.td_status); 1330 /* If there's an active TD the xfer isn't done. */ 1331 if (status & UHCI_TD_ACTIVE) 1332 break; 1333 /* Any kind of error makes the xfer done. */ 1334 if (status & UHCI_TD_STALLED) 1335 goto done; 1336 /* We want short packets, and it is short: it's done */ 1337 if ((status & UHCI_TD_SPD) && 1338 UHCI_TD_GET_ACTLEN(status) < 1339 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1340 goto done; 1341 } 1342 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1343 ii, ii->stdstart)); 1344 return; 1345 } 1346 done: 1347 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1348 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1349 uhci_idone(ii); 1350 } 1351 1352 /* Called at splusb() */ 1353 void 1354 uhci_idone(uhci_intr_info_t *ii) 1355 { 1356 usbd_xfer_handle xfer = ii->xfer; 1357 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1358 uhci_soft_td_t *std; 1359 u_int32_t status = 0, nstatus; 1360 int actlen; 1361 1362 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1363 #ifdef DIAGNOSTIC 1364 { 1365 int s = splhigh(); 1366 if (ii->isdone) { 1367 splx(s); 1368 #ifdef UHCI_DEBUG 1369 printf("uhci_idone: ii is done!\n "); 1370 uhci_dump_ii(ii); 1371 #else 1372 printf("uhci_idone: ii=%p is done!\n", ii); 1373 #endif 1374 return; 1375 } 1376 ii->isdone = 1; 1377 splx(s); 1378 } 1379 #endif 1380 1381 if (xfer->nframes != 0) { 1382 /* Isoc transfer, do things differently. */ 1383 uhci_soft_td_t **stds = upipe->u.iso.stds; 1384 int i, n, nframes, len; 1385 1386 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1387 1388 nframes = xfer->nframes; 1389 actlen = 0; 1390 n = UXFER(xfer)->curframe; 1391 for (i = 0; i < nframes; i++) { 1392 std = stds[n]; 1393 #ifdef UHCI_DEBUG 1394 if (uhcidebug > 5) { 1395 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1396 uhci_dump_td(std); 1397 } 1398 #endif 1399 if (++n >= UHCI_VFRAMELIST_COUNT) 1400 n = 0; 1401 status = le32toh(std->td.td_status); 1402 len = UHCI_TD_GET_ACTLEN(status); 1403 xfer->frlengths[i] = len; 1404 actlen += len; 1405 } 1406 upipe->u.iso.inuse -= nframes; 1407 xfer->actlen = actlen; 1408 xfer->status = USBD_NORMAL_COMPLETION; 1409 goto end; 1410 } 1411 1412 #ifdef UHCI_DEBUG 1413 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1414 ii, xfer, upipe)); 1415 if (uhcidebug > 10) 1416 uhci_dump_tds(ii->stdstart); 1417 #endif 1418 1419 /* The transfer is done, compute actual length and status. */ 1420 actlen = 0; 1421 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1422 nstatus = le32toh(std->td.td_status); 1423 if (nstatus & UHCI_TD_ACTIVE) 1424 break; 1425 1426 status = nstatus; 1427 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1428 UHCI_TD_PID_SETUP) 1429 actlen += UHCI_TD_GET_ACTLEN(status); 1430 } 1431 /* If there are left over TDs we need to update the toggle. */ 1432 if (std != NULL) 1433 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1434 1435 status &= UHCI_TD_ERROR; 1436 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1437 actlen, status)); 1438 xfer->actlen = actlen; 1439 if (status != 0) { 1440 #ifdef UHCI_DEBUG 1441 char sbuf[128]; 1442 1443 bitmask_snprintf((u_int32_t)status, 1444 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1445 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1446 sbuf, sizeof(sbuf)); 1447 1448 DPRINTFN((status == UHCI_TD_STALLED)*10, 1449 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1450 "status 0x%s\n", 1451 xfer->pipe->device->address, 1452 xfer->pipe->endpoint->edesc->bEndpointAddress, 1453 sbuf)); 1454 #endif 1455 1456 if (status == UHCI_TD_STALLED) 1457 xfer->status = USBD_STALLED; 1458 else 1459 xfer->status = USBD_IOERROR; /* more info XXX */ 1460 } else { 1461 xfer->status = USBD_NORMAL_COMPLETION; 1462 } 1463 1464 end: 1465 usb_transfer_complete(xfer); 1466 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1467 } 1468 1469 /* 1470 * Called when a request does not complete. 1471 */ 1472 void 1473 uhci_timeout(void *addr) 1474 { 1475 uhci_intr_info_t *ii = addr; 1476 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1477 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1478 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1479 1480 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1481 1482 if (sc->sc_dying) { 1483 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1484 return; 1485 } 1486 1487 /* Execute the abort in a process context. */ 1488 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1489 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1490 } 1491 1492 void 1493 uhci_timeout_task(void *addr) 1494 { 1495 usbd_xfer_handle xfer = addr; 1496 int s; 1497 1498 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1499 1500 s = splusb(); 1501 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1502 splx(s); 1503 } 1504 1505 /* 1506 * Wait here until controller claims to have an interrupt. 1507 * Then call uhci_intr and return. Use timeout to avoid waiting 1508 * too long. 1509 * Only used during boot when interrupts are not enabled yet. 1510 */ 1511 void 1512 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1513 { 1514 int timo = xfer->timeout; 1515 uhci_intr_info_t *ii; 1516 1517 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1518 1519 xfer->status = USBD_IN_PROGRESS; 1520 for (; timo >= 0; timo--) { 1521 usb_delay_ms(&sc->sc_bus, 1); 1522 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1523 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1524 uhci_intr1(sc); 1525 if (xfer->status != USBD_IN_PROGRESS) 1526 return; 1527 } 1528 } 1529 1530 /* Timeout */ 1531 DPRINTF(("uhci_waitintr: timeout\n")); 1532 for (ii = LIST_FIRST(&sc->sc_intrhead); 1533 ii != NULL && ii->xfer != xfer; 1534 ii = LIST_NEXT(ii, list)) 1535 ; 1536 #ifdef DIAGNOSTIC 1537 if (ii == NULL) 1538 panic("uhci_waitintr: lost intr_info"); 1539 #endif 1540 uhci_idone(ii); 1541 } 1542 1543 void 1544 uhci_poll(struct usbd_bus *bus) 1545 { 1546 uhci_softc_t *sc = (uhci_softc_t *)bus; 1547 1548 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1549 uhci_intr1(sc); 1550 } 1551 1552 void 1553 uhci_reset(uhci_softc_t *sc) 1554 { 1555 int n; 1556 1557 UHCICMD(sc, UHCI_CMD_HCRESET); 1558 /* The reset bit goes low when the controller is done. */ 1559 for (n = 0; n < UHCI_RESET_TIMEOUT && 1560 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1561 usb_delay_ms(&sc->sc_bus, 1); 1562 if (n >= UHCI_RESET_TIMEOUT) 1563 printf("%s: controller did not reset\n", 1564 USBDEVNAME(sc->sc_bus.bdev)); 1565 } 1566 1567 usbd_status 1568 uhci_run(uhci_softc_t *sc, int run) 1569 { 1570 int s, n, running; 1571 u_int16_t cmd; 1572 1573 run = run != 0; 1574 s = splhardusb(); 1575 DPRINTF(("uhci_run: setting run=%d\n", run)); 1576 cmd = UREAD2(sc, UHCI_CMD); 1577 if (run) 1578 cmd |= UHCI_CMD_RS; 1579 else 1580 cmd &= ~UHCI_CMD_RS; 1581 UHCICMD(sc, cmd); 1582 for(n = 0; n < 10; n++) { 1583 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1584 /* return when we've entered the state we want */ 1585 if (run == running) { 1586 splx(s); 1587 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1588 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1589 return (USBD_NORMAL_COMPLETION); 1590 } 1591 usb_delay_ms(&sc->sc_bus, 1); 1592 } 1593 splx(s); 1594 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1595 run ? "start" : "stop"); 1596 return (USBD_IOERROR); 1597 } 1598 1599 /* 1600 * Memory management routines. 1601 * uhci_alloc_std allocates TDs 1602 * uhci_alloc_sqh allocates QHs 1603 * These two routines do their own free list management, 1604 * partly for speed, partly because allocating DMAable memory 1605 * has page size granularaity so much memory would be wasted if 1606 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1607 */ 1608 1609 uhci_soft_td_t * 1610 uhci_alloc_std(uhci_softc_t *sc) 1611 { 1612 uhci_soft_td_t *std; 1613 usbd_status err; 1614 int i, offs; 1615 usb_dma_t dma; 1616 1617 if (sc->sc_freetds == NULL) { 1618 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1619 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1620 UHCI_TD_ALIGN, &dma); 1621 if (err) 1622 return (0); 1623 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1624 offs = i * UHCI_STD_SIZE; 1625 std = KERNADDR(&dma, offs); 1626 std->physaddr = DMAADDR(&dma, offs); 1627 std->link.std = sc->sc_freetds; 1628 sc->sc_freetds = std; 1629 } 1630 } 1631 std = sc->sc_freetds; 1632 sc->sc_freetds = std->link.std; 1633 memset(&std->td, 0, sizeof(uhci_td_t)); 1634 return std; 1635 } 1636 1637 void 1638 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1639 { 1640 #ifdef DIAGNOSTIC 1641 #define TD_IS_FREE 0x12345678 1642 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1643 printf("uhci_free_std: freeing free TD %p\n", std); 1644 return; 1645 } 1646 std->td.td_token = htole32(TD_IS_FREE); 1647 #endif 1648 std->link.std = sc->sc_freetds; 1649 sc->sc_freetds = std; 1650 } 1651 1652 uhci_soft_qh_t * 1653 uhci_alloc_sqh(uhci_softc_t *sc) 1654 { 1655 uhci_soft_qh_t *sqh; 1656 usbd_status err; 1657 int i, offs; 1658 usb_dma_t dma; 1659 1660 if (sc->sc_freeqhs == NULL) { 1661 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1662 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1663 UHCI_QH_ALIGN, &dma); 1664 if (err) 1665 return (0); 1666 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1667 offs = i * UHCI_SQH_SIZE; 1668 sqh = KERNADDR(&dma, offs); 1669 sqh->physaddr = DMAADDR(&dma, offs); 1670 sqh->hlink = sc->sc_freeqhs; 1671 sc->sc_freeqhs = sqh; 1672 } 1673 } 1674 sqh = sc->sc_freeqhs; 1675 sc->sc_freeqhs = sqh->hlink; 1676 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1677 return (sqh); 1678 } 1679 1680 void 1681 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1682 { 1683 sqh->hlink = sc->sc_freeqhs; 1684 sc->sc_freeqhs = sqh; 1685 } 1686 1687 void 1688 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1689 uhci_soft_td_t *stdend) 1690 { 1691 uhci_soft_td_t *p; 1692 1693 for (; std != stdend; std = p) { 1694 p = std->link.std; 1695 uhci_free_std(sc, std); 1696 } 1697 } 1698 1699 usbd_status 1700 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1701 int rd, u_int16_t flags, usb_dma_t *dma, 1702 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1703 { 1704 uhci_soft_td_t *p, *lastp; 1705 uhci_physaddr_t lastlink; 1706 int i, ntd, l, tog, maxp; 1707 u_int32_t status; 1708 int addr = upipe->pipe.device->address; 1709 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1710 1711 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1712 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1713 upipe->pipe.device->speed, flags)); 1714 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1715 if (maxp == 0) { 1716 printf("uhci_alloc_std_chain: maxp=0\n"); 1717 return (USBD_INVAL); 1718 } 1719 ntd = (len + maxp - 1) / maxp; 1720 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1721 ntd++; 1722 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1723 if (ntd == 0) { 1724 *sp = *ep = 0; 1725 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1726 return (USBD_NORMAL_COMPLETION); 1727 } 1728 tog = upipe->nexttoggle; 1729 if (ntd % 2 == 0) 1730 tog ^= 1; 1731 upipe->nexttoggle = tog ^ 1; 1732 lastp = NULL; 1733 lastlink = UHCI_PTR_T; 1734 ntd--; 1735 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1736 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1737 status |= UHCI_TD_LS; 1738 if (flags & USBD_SHORT_XFER_OK) 1739 status |= UHCI_TD_SPD; 1740 for (i = ntd; i >= 0; i--) { 1741 p = uhci_alloc_std(sc); 1742 if (p == NULL) { 1743 uhci_free_std_chain(sc, lastp, NULL); 1744 return (USBD_NOMEM); 1745 } 1746 p->link.std = lastp; 1747 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1748 lastp = p; 1749 lastlink = p->physaddr; 1750 p->td.td_status = htole32(status); 1751 if (i == ntd) { 1752 /* last TD */ 1753 l = len % maxp; 1754 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1755 l = maxp; 1756 *ep = p; 1757 } else 1758 l = maxp; 1759 p->td.td_token = 1760 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1761 UHCI_TD_OUT(l, endpt, addr, tog)); 1762 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1763 tog ^= 1; 1764 } 1765 *sp = lastp; 1766 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1767 upipe->nexttoggle)); 1768 return (USBD_NORMAL_COMPLETION); 1769 } 1770 1771 void 1772 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1773 { 1774 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1775 upipe->nexttoggle = 0; 1776 } 1777 1778 void 1779 uhci_noop(usbd_pipe_handle pipe) 1780 { 1781 } 1782 1783 usbd_status 1784 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1785 { 1786 usbd_status err; 1787 1788 /* Insert last in queue. */ 1789 err = usb_insert_transfer(xfer); 1790 if (err) 1791 return (err); 1792 1793 /* 1794 * Pipe isn't running (otherwise err would be USBD_INPROG), 1795 * so start it first. 1796 */ 1797 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1798 } 1799 1800 usbd_status 1801 uhci_device_bulk_start(usbd_xfer_handle xfer) 1802 { 1803 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1804 usbd_device_handle dev = upipe->pipe.device; 1805 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1806 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1807 uhci_soft_td_t *data, *dataend; 1808 uhci_soft_qh_t *sqh; 1809 usbd_status err; 1810 int len, isread, endpt; 1811 int s; 1812 1813 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1814 xfer, xfer->length, xfer->flags, ii)); 1815 1816 if (sc->sc_dying) 1817 return (USBD_IOERROR); 1818 1819 #ifdef DIAGNOSTIC 1820 if (xfer->rqflags & URQ_REQUEST) 1821 panic("uhci_device_bulk_transfer: a request"); 1822 #endif 1823 1824 len = xfer->length; 1825 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1826 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1827 sqh = upipe->u.bulk.sqh; 1828 1829 upipe->u.bulk.isread = isread; 1830 upipe->u.bulk.length = len; 1831 1832 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1833 &xfer->dmabuf, &data, &dataend); 1834 if (err) 1835 return (err); 1836 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1837 1838 #ifdef UHCI_DEBUG 1839 if (uhcidebug > 8) { 1840 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1841 uhci_dump_tds(data); 1842 } 1843 #endif 1844 1845 /* Set up interrupt info. */ 1846 ii->xfer = xfer; 1847 ii->stdstart = data; 1848 ii->stdend = dataend; 1849 #ifdef DIAGNOSTIC 1850 if (!ii->isdone) { 1851 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1852 } 1853 ii->isdone = 0; 1854 #endif 1855 1856 sqh->elink = data; 1857 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1858 1859 s = splusb(); 1860 uhci_add_bulk(sc, sqh); 1861 uhci_add_intr_info(sc, ii); 1862 1863 if (xfer->timeout && !sc->sc_bus.use_polling) { 1864 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1865 uhci_timeout, ii); 1866 } 1867 xfer->status = USBD_IN_PROGRESS; 1868 splx(s); 1869 1870 #ifdef UHCI_DEBUG 1871 if (uhcidebug > 10) { 1872 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1873 uhci_dump_tds(data); 1874 } 1875 #endif 1876 1877 if (sc->sc_bus.use_polling) 1878 uhci_waitintr(sc, xfer); 1879 1880 return (USBD_IN_PROGRESS); 1881 } 1882 1883 /* Abort a device bulk request. */ 1884 void 1885 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1886 { 1887 DPRINTF(("uhci_device_bulk_abort:\n")); 1888 uhci_abort_xfer(xfer, USBD_CANCELLED); 1889 } 1890 1891 /* 1892 * Abort a device request. 1893 * If this routine is called at splusb() it guarantees that the request 1894 * will be removed from the hardware scheduling and that the callback 1895 * for it will be called with USBD_CANCELLED status. 1896 * It's impossible to guarantee that the requested transfer will not 1897 * have happened since the hardware runs concurrently. 1898 * If the transaction has already happened we rely on the ordinary 1899 * interrupt processing to process it. 1900 */ 1901 void 1902 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1903 { 1904 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1905 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1906 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1907 uhci_soft_td_t *std; 1908 int s; 1909 1910 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1911 1912 if (sc->sc_dying) { 1913 /* If we're dying, just do the software part. */ 1914 s = splusb(); 1915 xfer->status = status; /* make software ignore it */ 1916 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1917 usb_transfer_complete(xfer); 1918 splx(s); 1919 } 1920 1921 if (xfer->device->bus->intr_context || !curproc) 1922 panic("uhci_abort_xfer: not in process context"); 1923 1924 /* 1925 * Step 1: Make interrupt routine and hardware ignore xfer. 1926 */ 1927 s = splusb(); 1928 xfer->status = status; /* make software ignore it */ 1929 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1930 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1931 for (std = ii->stdstart; std != NULL; std = std->link.std) 1932 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1933 splx(s); 1934 1935 /* 1936 * Step 2: Wait until we know hardware has finished any possible 1937 * use of the xfer. Also make sure the soft interrupt routine 1938 * has run. 1939 */ 1940 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1941 s = splusb(); 1942 #ifdef USB_USE_SOFTINTR 1943 sc->sc_softwake = 1; 1944 #endif /* USB_USE_SOFTINTR */ 1945 usb_schedsoftintr(&sc->sc_bus); 1946 #ifdef USB_USE_SOFTINTR 1947 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1948 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1949 #endif /* USB_USE_SOFTINTR */ 1950 splx(s); 1951 1952 /* 1953 * Step 3: Execute callback. 1954 */ 1955 xfer->hcpriv = ii; 1956 1957 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1958 s = splusb(); 1959 #ifdef DIAGNOSTIC 1960 ii->isdone = 1; 1961 #endif 1962 usb_transfer_complete(xfer); 1963 splx(s); 1964 } 1965 1966 /* Close a device bulk pipe. */ 1967 void 1968 uhci_device_bulk_close(usbd_pipe_handle pipe) 1969 { 1970 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1971 usbd_device_handle dev = upipe->pipe.device; 1972 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1973 1974 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1975 } 1976 1977 usbd_status 1978 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1979 { 1980 usbd_status err; 1981 1982 /* Insert last in queue. */ 1983 err = usb_insert_transfer(xfer); 1984 if (err) 1985 return (err); 1986 1987 /* 1988 * Pipe isn't running (otherwise err would be USBD_INPROG), 1989 * so start it first. 1990 */ 1991 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1992 } 1993 1994 usbd_status 1995 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1996 { 1997 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1998 usbd_status err; 1999 2000 if (sc->sc_dying) 2001 return (USBD_IOERROR); 2002 2003 #ifdef DIAGNOSTIC 2004 if (!(xfer->rqflags & URQ_REQUEST)) 2005 panic("uhci_device_ctrl_transfer: not a request"); 2006 #endif 2007 2008 err = uhci_device_request(xfer); 2009 if (err) 2010 return (err); 2011 2012 if (sc->sc_bus.use_polling) 2013 uhci_waitintr(sc, xfer); 2014 return (USBD_IN_PROGRESS); 2015 } 2016 2017 usbd_status 2018 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2019 { 2020 usbd_status err; 2021 2022 /* Insert last in queue. */ 2023 err = usb_insert_transfer(xfer); 2024 if (err) 2025 return (err); 2026 2027 /* 2028 * Pipe isn't running (otherwise err would be USBD_INPROG), 2029 * so start it first. 2030 */ 2031 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2032 } 2033 2034 usbd_status 2035 uhci_device_intr_start(usbd_xfer_handle xfer) 2036 { 2037 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2038 usbd_device_handle dev = upipe->pipe.device; 2039 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2040 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2041 uhci_soft_td_t *data, *dataend; 2042 uhci_soft_qh_t *sqh; 2043 usbd_status err; 2044 int i, s; 2045 2046 if (sc->sc_dying) 2047 return (USBD_IOERROR); 2048 2049 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2050 xfer, xfer->length, xfer->flags)); 2051 2052 #ifdef DIAGNOSTIC 2053 if (xfer->rqflags & URQ_REQUEST) 2054 panic("uhci_device_intr_transfer: a request"); 2055 #endif 2056 2057 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2058 &xfer->dmabuf, &data, &dataend); 2059 if (err) 2060 return (err); 2061 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2062 2063 #ifdef UHCI_DEBUG 2064 if (uhcidebug > 10) { 2065 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2066 uhci_dump_tds(data); 2067 uhci_dump_qh(upipe->u.intr.qhs[0]); 2068 } 2069 #endif 2070 2071 s = splusb(); 2072 /* Set up interrupt info. */ 2073 ii->xfer = xfer; 2074 ii->stdstart = data; 2075 ii->stdend = dataend; 2076 #ifdef DIAGNOSTIC 2077 if (!ii->isdone) { 2078 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2079 } 2080 ii->isdone = 0; 2081 #endif 2082 2083 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2084 upipe->u.intr.qhs[0])); 2085 for (i = 0; i < upipe->u.intr.npoll; i++) { 2086 sqh = upipe->u.intr.qhs[i]; 2087 sqh->elink = data; 2088 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2089 } 2090 uhci_add_intr_info(sc, ii); 2091 xfer->status = USBD_IN_PROGRESS; 2092 splx(s); 2093 2094 #ifdef UHCI_DEBUG 2095 if (uhcidebug > 10) { 2096 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2097 uhci_dump_tds(data); 2098 uhci_dump_qh(upipe->u.intr.qhs[0]); 2099 } 2100 #endif 2101 2102 return (USBD_IN_PROGRESS); 2103 } 2104 2105 /* Abort a device control request. */ 2106 void 2107 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2108 { 2109 DPRINTF(("uhci_device_ctrl_abort:\n")); 2110 uhci_abort_xfer(xfer, USBD_CANCELLED); 2111 } 2112 2113 /* Close a device control pipe. */ 2114 void 2115 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2116 { 2117 } 2118 2119 /* Abort a device interrupt request. */ 2120 void 2121 uhci_device_intr_abort(usbd_xfer_handle xfer) 2122 { 2123 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2124 if (xfer->pipe->intrxfer == xfer) { 2125 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2126 xfer->pipe->intrxfer = NULL; 2127 } 2128 uhci_abort_xfer(xfer, USBD_CANCELLED); 2129 } 2130 2131 /* Close a device interrupt pipe. */ 2132 void 2133 uhci_device_intr_close(usbd_pipe_handle pipe) 2134 { 2135 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2136 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2137 int i, npoll; 2138 int s; 2139 2140 /* Unlink descriptors from controller data structures. */ 2141 npoll = upipe->u.intr.npoll; 2142 s = splusb(); 2143 for (i = 0; i < npoll; i++) 2144 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2145 splx(s); 2146 2147 /* 2148 * We now have to wait for any activity on the physical 2149 * descriptors to stop. 2150 */ 2151 usb_delay_ms(&sc->sc_bus, 2); 2152 2153 for(i = 0; i < npoll; i++) 2154 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2155 free(upipe->u.intr.qhs, M_USBHC); 2156 2157 /* XXX free other resources */ 2158 } 2159 2160 usbd_status 2161 uhci_device_request(usbd_xfer_handle xfer) 2162 { 2163 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2164 usb_device_request_t *req = &xfer->request; 2165 usbd_device_handle dev = upipe->pipe.device; 2166 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2167 int addr = dev->address; 2168 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2169 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2170 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2171 uhci_soft_qh_t *sqh; 2172 int len; 2173 u_int32_t ls; 2174 usbd_status err; 2175 int isread; 2176 int s; 2177 2178 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2179 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2180 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2181 UGETW(req->wIndex), UGETW(req->wLength), 2182 addr, endpt)); 2183 2184 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2185 isread = req->bmRequestType & UT_READ; 2186 len = UGETW(req->wLength); 2187 2188 setup = upipe->u.ctl.setup; 2189 stat = upipe->u.ctl.stat; 2190 sqh = upipe->u.ctl.sqh; 2191 2192 /* Set up data transaction */ 2193 if (len != 0) { 2194 upipe->nexttoggle = 1; 2195 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2196 &xfer->dmabuf, &data, &dataend); 2197 if (err) 2198 return (err); 2199 next = data; 2200 dataend->link.std = stat; 2201 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2202 } else { 2203 next = stat; 2204 } 2205 upipe->u.ctl.length = len; 2206 2207 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2208 2209 setup->link.std = next; 2210 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2211 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2212 UHCI_TD_ACTIVE); 2213 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2214 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2215 2216 stat->link.std = NULL; 2217 stat->td.td_link = htole32(UHCI_PTR_T); 2218 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2219 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2220 stat->td.td_token = 2221 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2222 UHCI_TD_IN (0, endpt, addr, 1)); 2223 stat->td.td_buffer = htole32(0); 2224 2225 #ifdef UHCI_DEBUG 2226 if (uhcidebug > 10) { 2227 DPRINTF(("uhci_device_request: before transfer\n")); 2228 uhci_dump_tds(setup); 2229 } 2230 #endif 2231 2232 /* Set up interrupt info. */ 2233 ii->xfer = xfer; 2234 ii->stdstart = setup; 2235 ii->stdend = stat; 2236 #ifdef DIAGNOSTIC 2237 if (!ii->isdone) { 2238 printf("uhci_device_request: not done, ii=%p\n", ii); 2239 } 2240 ii->isdone = 0; 2241 #endif 2242 2243 sqh->elink = setup; 2244 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2245 2246 s = splusb(); 2247 if (dev->speed == USB_SPEED_LOW) 2248 uhci_add_ls_ctrl(sc, sqh); 2249 else 2250 uhci_add_hs_ctrl(sc, sqh); 2251 uhci_add_intr_info(sc, ii); 2252 #ifdef UHCI_DEBUG 2253 if (uhcidebug > 12) { 2254 uhci_soft_td_t *std; 2255 uhci_soft_qh_t *xqh; 2256 uhci_soft_qh_t *sxqh; 2257 int maxqh = 0; 2258 uhci_physaddr_t link; 2259 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2260 for (std = sc->sc_vframes[0].htd, link = 0; 2261 (link & UHCI_PTR_QH) == 0; 2262 std = std->link.std) { 2263 link = le32toh(std->td.td_link); 2264 uhci_dump_td(std); 2265 } 2266 sxqh = (uhci_soft_qh_t *)std; 2267 uhci_dump_qh(sxqh); 2268 for (xqh = sxqh; 2269 xqh != NULL; 2270 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2271 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2272 uhci_dump_qh(xqh); 2273 } 2274 DPRINTF(("Enqueued QH:\n")); 2275 uhci_dump_qh(sqh); 2276 uhci_dump_tds(sqh->elink); 2277 } 2278 #endif 2279 if (xfer->timeout && !sc->sc_bus.use_polling) { 2280 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2281 uhci_timeout, ii); 2282 } 2283 xfer->status = USBD_IN_PROGRESS; 2284 splx(s); 2285 2286 return (USBD_NORMAL_COMPLETION); 2287 } 2288 2289 usbd_status 2290 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2291 { 2292 usbd_status err; 2293 2294 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2295 2296 /* Put it on our queue, */ 2297 err = usb_insert_transfer(xfer); 2298 2299 /* bail out on error, */ 2300 if (err && err != USBD_IN_PROGRESS) 2301 return (err); 2302 2303 /* XXX should check inuse here */ 2304 2305 /* insert into schedule, */ 2306 uhci_device_isoc_enter(xfer); 2307 2308 /* and start if the pipe wasn't running */ 2309 if (!err) 2310 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2311 2312 return (err); 2313 } 2314 2315 void 2316 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2317 { 2318 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2319 usbd_device_handle dev = upipe->pipe.device; 2320 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2321 struct iso *iso = &upipe->u.iso; 2322 uhci_soft_td_t *std; 2323 u_int32_t buf, len, status; 2324 int s, i, next, nframes; 2325 2326 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2327 "nframes=%d\n", 2328 iso->inuse, iso->next, xfer, xfer->nframes)); 2329 2330 if (sc->sc_dying) 2331 return; 2332 2333 if (xfer->status == USBD_IN_PROGRESS) { 2334 /* This request has already been entered into the frame list */ 2335 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2336 /* XXX */ 2337 } 2338 2339 #ifdef DIAGNOSTIC 2340 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2341 printf("uhci_device_isoc_enter: overflow!\n"); 2342 #endif 2343 2344 next = iso->next; 2345 if (next == -1) { 2346 /* Not in use yet, schedule it a few frames ahead. */ 2347 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2348 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2349 } 2350 2351 xfer->status = USBD_IN_PROGRESS; 2352 UXFER(xfer)->curframe = next; 2353 2354 buf = DMAADDR(&xfer->dmabuf, 0); 2355 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2356 UHCI_TD_ACTIVE | 2357 UHCI_TD_IOS); 2358 nframes = xfer->nframes; 2359 s = splusb(); 2360 for (i = 0; i < nframes; i++) { 2361 std = iso->stds[next]; 2362 if (++next >= UHCI_VFRAMELIST_COUNT) 2363 next = 0; 2364 len = xfer->frlengths[i]; 2365 std->td.td_buffer = htole32(buf); 2366 if (i == nframes - 1) 2367 status |= UHCI_TD_IOC; 2368 std->td.td_status = htole32(status); 2369 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2370 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2371 #ifdef UHCI_DEBUG 2372 if (uhcidebug > 5) { 2373 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2374 uhci_dump_td(std); 2375 } 2376 #endif 2377 buf += len; 2378 } 2379 iso->next = next; 2380 iso->inuse += xfer->nframes; 2381 2382 splx(s); 2383 } 2384 2385 usbd_status 2386 uhci_device_isoc_start(usbd_xfer_handle xfer) 2387 { 2388 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2389 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2390 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2391 uhci_soft_td_t *end; 2392 int s, i; 2393 2394 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2395 2396 if (sc->sc_dying) 2397 return (USBD_IOERROR); 2398 2399 #ifdef DIAGNOSTIC 2400 if (xfer->status != USBD_IN_PROGRESS) 2401 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2402 #endif 2403 2404 /* Find the last TD */ 2405 i = UXFER(xfer)->curframe + xfer->nframes; 2406 if (i >= UHCI_VFRAMELIST_COUNT) 2407 i -= UHCI_VFRAMELIST_COUNT; 2408 end = upipe->u.iso.stds[i]; 2409 2410 #ifdef DIAGNOSTIC 2411 if (end == NULL) { 2412 printf("uhci_device_isoc_start: end == NULL\n"); 2413 return (USBD_INVAL); 2414 } 2415 #endif 2416 2417 s = splusb(); 2418 2419 /* Set up interrupt info. */ 2420 ii->xfer = xfer; 2421 ii->stdstart = end; 2422 ii->stdend = end; 2423 #ifdef DIAGNOSTIC 2424 if (!ii->isdone) 2425 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2426 ii->isdone = 0; 2427 #endif 2428 uhci_add_intr_info(sc, ii); 2429 2430 splx(s); 2431 2432 return (USBD_IN_PROGRESS); 2433 } 2434 2435 void 2436 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2437 { 2438 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2439 uhci_soft_td_t **stds = upipe->u.iso.stds; 2440 uhci_soft_td_t *std; 2441 int i, n, s, nframes, maxlen, len; 2442 2443 s = splusb(); 2444 2445 /* Transfer is already done. */ 2446 if (xfer->status != USBD_NOT_STARTED && 2447 xfer->status != USBD_IN_PROGRESS) { 2448 splx(s); 2449 return; 2450 } 2451 2452 /* Give xfer the requested abort code. */ 2453 xfer->status = USBD_CANCELLED; 2454 2455 /* make hardware ignore it, */ 2456 nframes = xfer->nframes; 2457 n = UXFER(xfer)->curframe; 2458 maxlen = 0; 2459 for (i = 0; i < nframes; i++) { 2460 std = stds[n]; 2461 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2462 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2463 if (len > maxlen) 2464 maxlen = len; 2465 if (++n >= UHCI_VFRAMELIST_COUNT) 2466 n = 0; 2467 } 2468 2469 /* and wait until we are sure the hardware has finished. */ 2470 delay(maxlen); 2471 2472 #ifdef DIAGNOSTIC 2473 UXFER(xfer)->iinfo.isdone = 1; 2474 #endif 2475 /* Run callback and remove from interrupt list. */ 2476 usb_transfer_complete(xfer); 2477 2478 splx(s); 2479 } 2480 2481 void 2482 uhci_device_isoc_close(usbd_pipe_handle pipe) 2483 { 2484 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2485 usbd_device_handle dev = upipe->pipe.device; 2486 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2487 uhci_soft_td_t *std, *vstd; 2488 struct iso *iso; 2489 int i, s; 2490 2491 /* 2492 * Make sure all TDs are marked as inactive. 2493 * Wait for completion. 2494 * Unschedule. 2495 * Deallocate. 2496 */ 2497 iso = &upipe->u.iso; 2498 2499 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2500 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2501 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2502 2503 s = splusb(); 2504 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2505 std = iso->stds[i]; 2506 for (vstd = sc->sc_vframes[i].htd; 2507 vstd != NULL && vstd->link.std != std; 2508 vstd = vstd->link.std) 2509 ; 2510 if (vstd == NULL) { 2511 /*panic*/ 2512 printf("uhci_device_isoc_close: %p not found\n", std); 2513 splx(s); 2514 return; 2515 } 2516 vstd->link = std->link; 2517 vstd->td.td_link = std->td.td_link; 2518 uhci_free_std(sc, std); 2519 } 2520 splx(s); 2521 2522 free(iso->stds, M_USBHC); 2523 } 2524 2525 usbd_status 2526 uhci_setup_isoc(usbd_pipe_handle pipe) 2527 { 2528 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2529 usbd_device_handle dev = upipe->pipe.device; 2530 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2531 int addr = upipe->pipe.device->address; 2532 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2533 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2534 uhci_soft_td_t *std, *vstd; 2535 u_int32_t token; 2536 struct iso *iso; 2537 int i, s; 2538 2539 iso = &upipe->u.iso; 2540 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2541 M_USBHC, M_WAITOK); 2542 2543 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2544 UHCI_TD_OUT(0, endpt, addr, 0); 2545 2546 /* Allocate the TDs and mark as inactive; */ 2547 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2548 std = uhci_alloc_std(sc); 2549 if (std == 0) 2550 goto bad; 2551 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2552 std->td.td_token = htole32(token); 2553 iso->stds[i] = std; 2554 } 2555 2556 /* Insert TDs into schedule. */ 2557 s = splusb(); 2558 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2559 std = iso->stds[i]; 2560 vstd = sc->sc_vframes[i].htd; 2561 std->link = vstd->link; 2562 std->td.td_link = vstd->td.td_link; 2563 vstd->link.std = std; 2564 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2565 } 2566 splx(s); 2567 2568 iso->next = -1; 2569 iso->inuse = 0; 2570 2571 return (USBD_NORMAL_COMPLETION); 2572 2573 bad: 2574 while (--i >= 0) 2575 uhci_free_std(sc, iso->stds[i]); 2576 free(iso->stds, M_USBHC); 2577 return (USBD_NOMEM); 2578 } 2579 2580 void 2581 uhci_device_isoc_done(usbd_xfer_handle xfer) 2582 { 2583 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2584 2585 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2586 2587 if (ii->xfer != xfer) 2588 /* Not on interrupt list, ignore it. */ 2589 return; 2590 2591 if (!uhci_active_intr_info(ii)) 2592 return; 2593 2594 #ifdef DIAGNOSTIC 2595 if (xfer->busy_free != XFER_BUSY) { 2596 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2597 xfer, xfer->busy_free); 2598 return; 2599 } 2600 2601 if (ii->stdend == NULL) { 2602 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2603 #ifdef UHCI_DEBUG 2604 uhci_dump_ii(ii); 2605 #endif 2606 return; 2607 } 2608 #endif 2609 2610 /* Turn off the interrupt since it is active even if the TD is not. */ 2611 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2612 2613 uhci_del_intr_info(ii); /* remove from active list */ 2614 } 2615 2616 void 2617 uhci_device_intr_done(usbd_xfer_handle xfer) 2618 { 2619 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2620 uhci_softc_t *sc = ii->sc; 2621 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2622 uhci_soft_qh_t *sqh; 2623 int i, npoll; 2624 2625 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2626 2627 npoll = upipe->u.intr.npoll; 2628 for(i = 0; i < npoll; i++) { 2629 sqh = upipe->u.intr.qhs[i]; 2630 sqh->elink = NULL; 2631 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2632 } 2633 uhci_free_std_chain(sc, ii->stdstart, NULL); 2634 2635 /* XXX Wasteful. */ 2636 if (xfer->pipe->repeat) { 2637 uhci_soft_td_t *data, *dataend; 2638 2639 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2640 2641 /* This alloc cannot fail since we freed the chain above. */ 2642 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2643 &xfer->dmabuf, &data, &dataend); 2644 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2645 2646 #ifdef UHCI_DEBUG 2647 if (uhcidebug > 10) { 2648 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2649 uhci_dump_tds(data); 2650 uhci_dump_qh(upipe->u.intr.qhs[0]); 2651 } 2652 #endif 2653 2654 ii->stdstart = data; 2655 ii->stdend = dataend; 2656 #ifdef DIAGNOSTIC 2657 if (!ii->isdone) { 2658 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2659 } 2660 ii->isdone = 0; 2661 #endif 2662 for (i = 0; i < npoll; i++) { 2663 sqh = upipe->u.intr.qhs[i]; 2664 sqh->elink = data; 2665 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2666 } 2667 xfer->status = USBD_IN_PROGRESS; 2668 /* The ii is already on the examined list, just leave it. */ 2669 } else { 2670 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2671 if (uhci_active_intr_info(ii)) 2672 uhci_del_intr_info(ii); 2673 } 2674 } 2675 2676 /* Deallocate request data structures */ 2677 void 2678 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2679 { 2680 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2681 uhci_softc_t *sc = ii->sc; 2682 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2683 2684 #ifdef DIAGNOSTIC 2685 if (!(xfer->rqflags & URQ_REQUEST)) 2686 panic("uhci_device_ctrl_done: not a request"); 2687 #endif 2688 2689 if (!uhci_active_intr_info(ii)) 2690 return; 2691 2692 uhci_del_intr_info(ii); /* remove from active list */ 2693 2694 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2695 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2696 else 2697 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2698 2699 if (upipe->u.ctl.length != 0) 2700 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2701 2702 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2703 } 2704 2705 /* Deallocate request data structures */ 2706 void 2707 uhci_device_bulk_done(usbd_xfer_handle xfer) 2708 { 2709 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2710 uhci_softc_t *sc = ii->sc; 2711 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2712 2713 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2714 xfer, ii, sc, upipe)); 2715 2716 if (!uhci_active_intr_info(ii)) 2717 return; 2718 2719 uhci_del_intr_info(ii); /* remove from active list */ 2720 2721 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2722 2723 uhci_free_std_chain(sc, ii->stdstart, NULL); 2724 2725 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2726 } 2727 2728 /* Add interrupt QH, called with vflock. */ 2729 void 2730 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2731 { 2732 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2733 uhci_soft_qh_t *eqh; 2734 2735 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2736 2737 eqh = vf->eqh; 2738 sqh->hlink = eqh->hlink; 2739 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2740 eqh->hlink = sqh; 2741 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2742 vf->eqh = sqh; 2743 vf->bandwidth++; 2744 } 2745 2746 /* Remove interrupt QH. */ 2747 void 2748 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2749 { 2750 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2751 uhci_soft_qh_t *pqh; 2752 2753 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2754 2755 /* See comment in uhci_remove_ctrl() */ 2756 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2757 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2758 delay(UHCI_QH_REMOVE_DELAY); 2759 } 2760 2761 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2762 pqh->hlink = sqh->hlink; 2763 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2764 delay(UHCI_QH_REMOVE_DELAY); 2765 if (vf->eqh == sqh) 2766 vf->eqh = pqh; 2767 vf->bandwidth--; 2768 } 2769 2770 usbd_status 2771 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2772 { 2773 uhci_soft_qh_t *sqh; 2774 int i, npoll, s; 2775 u_int bestbw, bw, bestoffs, offs; 2776 2777 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2778 if (ival == 0) { 2779 printf("uhci_device_setintr: 0 interval\n"); 2780 return (USBD_INVAL); 2781 } 2782 2783 if (ival > UHCI_VFRAMELIST_COUNT) 2784 ival = UHCI_VFRAMELIST_COUNT; 2785 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2786 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2787 2788 upipe->u.intr.npoll = npoll; 2789 upipe->u.intr.qhs = 2790 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2791 2792 /* 2793 * Figure out which offset in the schedule that has most 2794 * bandwidth left over. 2795 */ 2796 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2797 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2798 for (bw = i = 0; i < npoll; i++) 2799 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2800 if (bw < bestbw) { 2801 bestbw = bw; 2802 bestoffs = offs; 2803 } 2804 } 2805 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2806 2807 for(i = 0; i < npoll; i++) { 2808 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2809 sqh->elink = NULL; 2810 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2811 sqh->pos = MOD(i * ival + bestoffs); 2812 } 2813 #undef MOD 2814 2815 s = splusb(); 2816 /* Enter QHs into the controller data structures. */ 2817 for(i = 0; i < npoll; i++) 2818 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2819 splx(s); 2820 2821 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2822 return (USBD_NORMAL_COMPLETION); 2823 } 2824 2825 /* Open a new pipe. */ 2826 usbd_status 2827 uhci_open(usbd_pipe_handle pipe) 2828 { 2829 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2830 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2831 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2832 usbd_status err; 2833 int ival; 2834 2835 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2836 pipe, pipe->device->address, 2837 ed->bEndpointAddress, sc->sc_addr)); 2838 2839 upipe->aborting = 0; 2840 upipe->nexttoggle = 0; 2841 2842 if (pipe->device->address == sc->sc_addr) { 2843 switch (ed->bEndpointAddress) { 2844 case USB_CONTROL_ENDPOINT: 2845 pipe->methods = &uhci_root_ctrl_methods; 2846 break; 2847 case UE_DIR_IN | UHCI_INTR_ENDPT: 2848 pipe->methods = &uhci_root_intr_methods; 2849 break; 2850 default: 2851 return (USBD_INVAL); 2852 } 2853 } else { 2854 switch (ed->bmAttributes & UE_XFERTYPE) { 2855 case UE_CONTROL: 2856 pipe->methods = &uhci_device_ctrl_methods; 2857 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2858 if (upipe->u.ctl.sqh == NULL) 2859 goto bad; 2860 upipe->u.ctl.setup = uhci_alloc_std(sc); 2861 if (upipe->u.ctl.setup == NULL) { 2862 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2863 goto bad; 2864 } 2865 upipe->u.ctl.stat = uhci_alloc_std(sc); 2866 if (upipe->u.ctl.stat == NULL) { 2867 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2868 uhci_free_std(sc, upipe->u.ctl.setup); 2869 goto bad; 2870 } 2871 err = usb_allocmem(&sc->sc_bus, 2872 sizeof(usb_device_request_t), 2873 0, &upipe->u.ctl.reqdma); 2874 if (err) { 2875 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2876 uhci_free_std(sc, upipe->u.ctl.setup); 2877 uhci_free_std(sc, upipe->u.ctl.stat); 2878 goto bad; 2879 } 2880 break; 2881 case UE_INTERRUPT: 2882 pipe->methods = &uhci_device_intr_methods; 2883 ival = pipe->interval; 2884 if (ival == USBD_DEFAULT_INTERVAL) 2885 ival = ed->bInterval; 2886 return (uhci_device_setintr(sc, upipe, ival)); 2887 case UE_ISOCHRONOUS: 2888 pipe->methods = &uhci_device_isoc_methods; 2889 return (uhci_setup_isoc(pipe)); 2890 case UE_BULK: 2891 pipe->methods = &uhci_device_bulk_methods; 2892 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2893 if (upipe->u.bulk.sqh == NULL) 2894 goto bad; 2895 break; 2896 } 2897 } 2898 return (USBD_NORMAL_COMPLETION); 2899 2900 bad: 2901 return (USBD_NOMEM); 2902 } 2903 2904 /* 2905 * Data structures and routines to emulate the root hub. 2906 */ 2907 usb_device_descriptor_t uhci_devd = { 2908 USB_DEVICE_DESCRIPTOR_SIZE, 2909 UDESC_DEVICE, /* type */ 2910 {0x00, 0x01}, /* USB version */ 2911 UDCLASS_HUB, /* class */ 2912 UDSUBCLASS_HUB, /* subclass */ 2913 UDPROTO_FSHUB, /* protocol */ 2914 64, /* max packet */ 2915 {0},{0},{0x00,0x01}, /* device id */ 2916 1,2,0, /* string indicies */ 2917 1 /* # of configurations */ 2918 }; 2919 2920 usb_config_descriptor_t uhci_confd = { 2921 USB_CONFIG_DESCRIPTOR_SIZE, 2922 UDESC_CONFIG, 2923 {USB_CONFIG_DESCRIPTOR_SIZE + 2924 USB_INTERFACE_DESCRIPTOR_SIZE + 2925 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2926 1, 2927 1, 2928 0, 2929 UC_SELF_POWERED, 2930 0 /* max power */ 2931 }; 2932 2933 usb_interface_descriptor_t uhci_ifcd = { 2934 USB_INTERFACE_DESCRIPTOR_SIZE, 2935 UDESC_INTERFACE, 2936 0, 2937 0, 2938 1, 2939 UICLASS_HUB, 2940 UISUBCLASS_HUB, 2941 UIPROTO_FSHUB, 2942 0 2943 }; 2944 2945 usb_endpoint_descriptor_t uhci_endpd = { 2946 USB_ENDPOINT_DESCRIPTOR_SIZE, 2947 UDESC_ENDPOINT, 2948 UE_DIR_IN | UHCI_INTR_ENDPT, 2949 UE_INTERRUPT, 2950 {8}, 2951 255 2952 }; 2953 2954 usb_hub_descriptor_t uhci_hubd_piix = { 2955 USB_HUB_DESCRIPTOR_SIZE, 2956 UDESC_HUB, 2957 2, 2958 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2959 50, /* power on to power good */ 2960 0, 2961 { 0x00 }, /* both ports are removable */ 2962 }; 2963 2964 int 2965 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2966 { 2967 int i; 2968 2969 if (l == 0) 2970 return (0); 2971 p->bLength = 2 * strlen(s) + 2; 2972 if (l == 1) 2973 return (1); 2974 p->bDescriptorType = UDESC_STRING; 2975 l -= 2; 2976 for (i = 0; s[i] && l > 1; i++, l -= 2) 2977 USETW2(p->bString[i], 0, s[i]); 2978 return (2*i+2); 2979 } 2980 2981 /* 2982 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2983 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2984 * should not be used by the USB subsystem. As we cannot issue a 2985 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2986 * will be enabled as part of the reset. 2987 * 2988 * On the VT83C572, the port cannot be successfully enabled until the 2989 * outstanding "port enable change" and "connection status change" 2990 * events have been reset. 2991 */ 2992 Static usbd_status 2993 uhci_portreset(uhci_softc_t *sc, int index) 2994 { 2995 int lim, port, x; 2996 2997 if (index == 1) 2998 port = UHCI_PORTSC1; 2999 else if (index == 2) 3000 port = UHCI_PORTSC2; 3001 else 3002 return (USBD_IOERROR); 3003 3004 x = URWMASK(UREAD2(sc, port)); 3005 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3006 3007 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3008 3009 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3010 index, UREAD2(sc, port))); 3011 3012 x = URWMASK(UREAD2(sc, port)); 3013 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3014 3015 delay(100); 3016 3017 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3018 index, UREAD2(sc, port))); 3019 3020 x = URWMASK(UREAD2(sc, port)); 3021 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3022 3023 for (lim = 10; --lim > 0;) { 3024 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3025 3026 x = UREAD2(sc, port); 3027 3028 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3029 index, lim, x)); 3030 3031 if (!(x & UHCI_PORTSC_CCS)) { 3032 /* 3033 * No device is connected (or was disconnected 3034 * during reset). Consider the port reset. 3035 * The delay must be long enough to ensure on 3036 * the initial iteration that the device 3037 * connection will have been registered. 50ms 3038 * appears to be sufficient, but 20ms is not. 3039 */ 3040 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3041 index, lim)); 3042 break; 3043 } 3044 3045 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3046 /* 3047 * Port enabled changed and/or connection 3048 * status changed were set. Reset either or 3049 * both raised flags (by writing a 1 to that 3050 * bit), and wait again for state to settle. 3051 */ 3052 UWRITE2(sc, port, URWMASK(x) | 3053 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3054 continue; 3055 } 3056 3057 if (x & UHCI_PORTSC_PE) 3058 /* Port is enabled */ 3059 break; 3060 3061 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3062 } 3063 3064 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3065 index, UREAD2(sc, port))); 3066 3067 if (lim <= 0) { 3068 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3069 return (USBD_TIMEOUT); 3070 } 3071 3072 sc->sc_isreset = 1; 3073 return (USBD_NORMAL_COMPLETION); 3074 } 3075 3076 /* 3077 * Simulate a hardware hub by handling all the necessary requests. 3078 */ 3079 usbd_status 3080 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3081 { 3082 usbd_status err; 3083 3084 /* Insert last in queue. */ 3085 err = usb_insert_transfer(xfer); 3086 if (err) 3087 return (err); 3088 3089 /* 3090 * Pipe isn't running (otherwise err would be USBD_INPROG), 3091 * so start it first. 3092 */ 3093 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3094 } 3095 3096 usbd_status 3097 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3098 { 3099 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3100 usb_device_request_t *req; 3101 void *buf = NULL; 3102 int port, x; 3103 int s, len, value, index, status, change, l, totlen = 0; 3104 usb_port_status_t ps; 3105 usbd_status err; 3106 3107 if (sc->sc_dying) 3108 return (USBD_IOERROR); 3109 3110 #ifdef DIAGNOSTIC 3111 if (!(xfer->rqflags & URQ_REQUEST)) 3112 panic("uhci_root_ctrl_transfer: not a request"); 3113 #endif 3114 req = &xfer->request; 3115 3116 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3117 req->bmRequestType, req->bRequest)); 3118 3119 len = UGETW(req->wLength); 3120 value = UGETW(req->wValue); 3121 index = UGETW(req->wIndex); 3122 3123 if (len != 0) 3124 buf = KERNADDR(&xfer->dmabuf, 0); 3125 3126 #define C(x,y) ((x) | ((y) << 8)) 3127 switch(C(req->bRequest, req->bmRequestType)) { 3128 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3129 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3130 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3131 /* 3132 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3133 * for the integrated root hub. 3134 */ 3135 break; 3136 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3137 if (len > 0) { 3138 *(u_int8_t *)buf = sc->sc_conf; 3139 totlen = 1; 3140 } 3141 break; 3142 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3143 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3144 switch(value >> 8) { 3145 case UDESC_DEVICE: 3146 if ((value & 0xff) != 0) { 3147 err = USBD_IOERROR; 3148 goto ret; 3149 } 3150 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3151 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3152 memcpy(buf, &uhci_devd, l); 3153 break; 3154 case UDESC_CONFIG: 3155 if ((value & 0xff) != 0) { 3156 err = USBD_IOERROR; 3157 goto ret; 3158 } 3159 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3160 memcpy(buf, &uhci_confd, l); 3161 buf = (char *)buf + l; 3162 len -= l; 3163 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3164 totlen += l; 3165 memcpy(buf, &uhci_ifcd, l); 3166 buf = (char *)buf + l; 3167 len -= l; 3168 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3169 totlen += l; 3170 memcpy(buf, &uhci_endpd, l); 3171 break; 3172 case UDESC_STRING: 3173 if (len == 0) 3174 break; 3175 *(u_int8_t *)buf = 0; 3176 totlen = 1; 3177 switch (value & 0xff) { 3178 case 1: /* Vendor */ 3179 totlen = uhci_str(buf, len, sc->sc_vendor); 3180 break; 3181 case 2: /* Product */ 3182 totlen = uhci_str(buf, len, "UHCI root hub"); 3183 break; 3184 } 3185 break; 3186 default: 3187 err = USBD_IOERROR; 3188 goto ret; 3189 } 3190 break; 3191 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3192 if (len > 0) { 3193 *(u_int8_t *)buf = 0; 3194 totlen = 1; 3195 } 3196 break; 3197 case C(UR_GET_STATUS, UT_READ_DEVICE): 3198 if (len > 1) { 3199 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3200 totlen = 2; 3201 } 3202 break; 3203 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3204 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3205 if (len > 1) { 3206 USETW(((usb_status_t *)buf)->wStatus, 0); 3207 totlen = 2; 3208 } 3209 break; 3210 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3211 if (value >= USB_MAX_DEVICES) { 3212 err = USBD_IOERROR; 3213 goto ret; 3214 } 3215 sc->sc_addr = value; 3216 break; 3217 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3218 if (value != 0 && value != 1) { 3219 err = USBD_IOERROR; 3220 goto ret; 3221 } 3222 sc->sc_conf = value; 3223 break; 3224 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3225 break; 3226 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3227 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3228 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3229 err = USBD_IOERROR; 3230 goto ret; 3231 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3232 break; 3233 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3234 break; 3235 /* Hub requests */ 3236 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3237 break; 3238 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3239 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3240 "port=%d feature=%d\n", 3241 index, value)); 3242 if (index == 1) 3243 port = UHCI_PORTSC1; 3244 else if (index == 2) 3245 port = UHCI_PORTSC2; 3246 else { 3247 err = USBD_IOERROR; 3248 goto ret; 3249 } 3250 switch(value) { 3251 case UHF_PORT_ENABLE: 3252 x = URWMASK(UREAD2(sc, port)); 3253 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3254 break; 3255 case UHF_PORT_SUSPEND: 3256 x = URWMASK(UREAD2(sc, port)); 3257 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3258 break; 3259 case UHF_PORT_RESET: 3260 x = URWMASK(UREAD2(sc, port)); 3261 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3262 break; 3263 case UHF_C_PORT_CONNECTION: 3264 x = URWMASK(UREAD2(sc, port)); 3265 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3266 break; 3267 case UHF_C_PORT_ENABLE: 3268 x = URWMASK(UREAD2(sc, port)); 3269 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3270 break; 3271 case UHF_C_PORT_OVER_CURRENT: 3272 x = URWMASK(UREAD2(sc, port)); 3273 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3274 break; 3275 case UHF_C_PORT_RESET: 3276 sc->sc_isreset = 0; 3277 err = USBD_NORMAL_COMPLETION; 3278 goto ret; 3279 case UHF_PORT_CONNECTION: 3280 case UHF_PORT_OVER_CURRENT: 3281 case UHF_PORT_POWER: 3282 case UHF_PORT_LOW_SPEED: 3283 case UHF_C_PORT_SUSPEND: 3284 default: 3285 err = USBD_IOERROR; 3286 goto ret; 3287 } 3288 break; 3289 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3290 if (index == 1) 3291 port = UHCI_PORTSC1; 3292 else if (index == 2) 3293 port = UHCI_PORTSC2; 3294 else { 3295 err = USBD_IOERROR; 3296 goto ret; 3297 } 3298 if (len > 0) { 3299 *(u_int8_t *)buf = 3300 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3301 UHCI_PORTSC_LS_SHIFT; 3302 totlen = 1; 3303 } 3304 break; 3305 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3306 if (value != 0) { 3307 err = USBD_IOERROR; 3308 goto ret; 3309 } 3310 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3311 totlen = l; 3312 memcpy(buf, &uhci_hubd_piix, l); 3313 break; 3314 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3315 if (len != 4) { 3316 err = USBD_IOERROR; 3317 goto ret; 3318 } 3319 memset(buf, 0, len); 3320 totlen = len; 3321 break; 3322 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3323 if (index == 1) 3324 port = UHCI_PORTSC1; 3325 else if (index == 2) 3326 port = UHCI_PORTSC2; 3327 else { 3328 err = USBD_IOERROR; 3329 goto ret; 3330 } 3331 if (len != 4) { 3332 err = USBD_IOERROR; 3333 goto ret; 3334 } 3335 x = UREAD2(sc, port); 3336 status = change = 0; 3337 if (x & UHCI_PORTSC_CCS) 3338 status |= UPS_CURRENT_CONNECT_STATUS; 3339 if (x & UHCI_PORTSC_CSC) 3340 change |= UPS_C_CONNECT_STATUS; 3341 if (x & UHCI_PORTSC_PE) 3342 status |= UPS_PORT_ENABLED; 3343 if (x & UHCI_PORTSC_POEDC) 3344 change |= UPS_C_PORT_ENABLED; 3345 if (x & UHCI_PORTSC_OCI) 3346 status |= UPS_OVERCURRENT_INDICATOR; 3347 if (x & UHCI_PORTSC_OCIC) 3348 change |= UPS_C_OVERCURRENT_INDICATOR; 3349 if (x & UHCI_PORTSC_SUSP) 3350 status |= UPS_SUSPEND; 3351 if (x & UHCI_PORTSC_LSDA) 3352 status |= UPS_LOW_SPEED; 3353 status |= UPS_PORT_POWER; 3354 if (sc->sc_isreset) 3355 change |= UPS_C_PORT_RESET; 3356 USETW(ps.wPortStatus, status); 3357 USETW(ps.wPortChange, change); 3358 l = min(len, sizeof ps); 3359 memcpy(buf, &ps, l); 3360 totlen = l; 3361 break; 3362 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3363 err = USBD_IOERROR; 3364 goto ret; 3365 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3366 break; 3367 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3368 if (index == 1) 3369 port = UHCI_PORTSC1; 3370 else if (index == 2) 3371 port = UHCI_PORTSC2; 3372 else { 3373 err = USBD_IOERROR; 3374 goto ret; 3375 } 3376 switch(value) { 3377 case UHF_PORT_ENABLE: 3378 x = URWMASK(UREAD2(sc, port)); 3379 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3380 break; 3381 case UHF_PORT_SUSPEND: 3382 x = URWMASK(UREAD2(sc, port)); 3383 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3384 break; 3385 case UHF_PORT_RESET: 3386 err = uhci_portreset(sc, index); 3387 goto ret; 3388 case UHF_PORT_POWER: 3389 /* Pretend we turned on power */ 3390 err = USBD_NORMAL_COMPLETION; 3391 goto ret; 3392 case UHF_C_PORT_CONNECTION: 3393 case UHF_C_PORT_ENABLE: 3394 case UHF_C_PORT_OVER_CURRENT: 3395 case UHF_PORT_CONNECTION: 3396 case UHF_PORT_OVER_CURRENT: 3397 case UHF_PORT_LOW_SPEED: 3398 case UHF_C_PORT_SUSPEND: 3399 case UHF_C_PORT_RESET: 3400 default: 3401 err = USBD_IOERROR; 3402 goto ret; 3403 } 3404 break; 3405 default: 3406 err = USBD_IOERROR; 3407 goto ret; 3408 } 3409 xfer->actlen = totlen; 3410 err = USBD_NORMAL_COMPLETION; 3411 ret: 3412 xfer->status = err; 3413 s = splusb(); 3414 usb_transfer_complete(xfer); 3415 splx(s); 3416 return (USBD_IN_PROGRESS); 3417 } 3418 3419 /* Abort a root control request. */ 3420 void 3421 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3422 { 3423 /* Nothing to do, all transfers are synchronous. */ 3424 } 3425 3426 /* Close the root pipe. */ 3427 void 3428 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3429 { 3430 DPRINTF(("uhci_root_ctrl_close\n")); 3431 } 3432 3433 /* Abort a root interrupt request. */ 3434 void 3435 uhci_root_intr_abort(usbd_xfer_handle xfer) 3436 { 3437 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3438 3439 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3440 sc->sc_intr_xfer = NULL; 3441 3442 if (xfer->pipe->intrxfer == xfer) { 3443 DPRINTF(("uhci_root_intr_abort: remove\n")); 3444 xfer->pipe->intrxfer = 0; 3445 } 3446 xfer->status = USBD_CANCELLED; 3447 #ifdef DIAGNOSTIC 3448 UXFER(xfer)->iinfo.isdone = 1; 3449 #endif 3450 usb_transfer_complete(xfer); 3451 } 3452 3453 usbd_status 3454 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3455 { 3456 usbd_status err; 3457 3458 /* Insert last in queue. */ 3459 err = usb_insert_transfer(xfer); 3460 if (err) 3461 return (err); 3462 3463 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3464 * start first 3465 */ 3466 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3467 } 3468 3469 /* Start a transfer on the root interrupt pipe */ 3470 usbd_status 3471 uhci_root_intr_start(usbd_xfer_handle xfer) 3472 { 3473 usbd_pipe_handle pipe = xfer->pipe; 3474 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3475 unsigned int ival; 3476 3477 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3478 xfer, xfer->length, xfer->flags)); 3479 3480 if (sc->sc_dying) 3481 return (USBD_IOERROR); 3482 3483 /* XXX temporary variable needed to avoid gcc3 warning */ 3484 ival = xfer->pipe->endpoint->edesc->bInterval; 3485 sc->sc_ival = mstohz(ival); 3486 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3487 sc->sc_intr_xfer = xfer; 3488 return (USBD_IN_PROGRESS); 3489 } 3490 3491 /* Close the root interrupt pipe. */ 3492 void 3493 uhci_root_intr_close(usbd_pipe_handle pipe) 3494 { 3495 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3496 3497 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3498 sc->sc_intr_xfer = NULL; 3499 DPRINTF(("uhci_root_intr_close\n")); 3500 } 3501
Indexes created Tue Sep 30 20:09:53 GMT 2025