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sys/dev/usb/uhci.c
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1 /* $NetBSD: uhci.c,v 1.178.2.1 2004/07/02 17:16:14 he Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/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 1.178.2.1 2004/07/02 17:16:14 he 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), "\2\1T\2Q\3VF", 800 sbuf, sizeof(sbuf)); 801 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 802 "\2\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 if (sc->sc_bus.use_polling) { 1180 #ifdef DIAGNOSTIC 1181 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1182 #endif 1183 return (0); 1184 } 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, *nextii; 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 = nextii) { 1280 nextii = LIST_NEXT(ii, list); 1281 uhci_check_intr(sc, ii); 1282 } 1283 1284 #ifdef USB_USE_SOFTINTR 1285 if (sc->sc_softwake) { 1286 sc->sc_softwake = 0; 1287 wakeup(&sc->sc_softwake); 1288 } 1289 #endif /* USB_USE_SOFTINTR */ 1290 1291 sc->sc_bus.intr_context--; 1292 } 1293 1294 /* Check for an interrupt. */ 1295 void 1296 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1297 { 1298 uhci_soft_td_t *std, *lstd; 1299 u_int32_t status; 1300 1301 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1302 #ifdef DIAGNOSTIC 1303 if (ii == NULL) { 1304 printf("uhci_check_intr: no ii? %p\n", ii); 1305 return; 1306 } 1307 #endif 1308 if (ii->xfer->status == USBD_CANCELLED || 1309 ii->xfer->status == USBD_TIMEOUT) { 1310 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1311 return; 1312 } 1313 1314 if (ii->stdstart == NULL) 1315 return; 1316 lstd = ii->stdend; 1317 #ifdef DIAGNOSTIC 1318 if (lstd == NULL) { 1319 printf("uhci_check_intr: std==0\n"); 1320 return; 1321 } 1322 #endif 1323 /* 1324 * If the last TD is still active we need to check whether there 1325 * is a an error somewhere in the middle, or whether there was a 1326 * short packet (SPD and not ACTIVE). 1327 */ 1328 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1329 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1330 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1331 status = le32toh(std->td.td_status); 1332 /* If there's an active TD the xfer isn't done. */ 1333 if (status & UHCI_TD_ACTIVE) 1334 break; 1335 /* Any kind of error makes the xfer done. */ 1336 if (status & UHCI_TD_STALLED) 1337 goto done; 1338 /* We want short packets, and it is short: it's done */ 1339 if ((status & UHCI_TD_SPD) && 1340 UHCI_TD_GET_ACTLEN(status) < 1341 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1342 goto done; 1343 } 1344 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1345 ii, ii->stdstart)); 1346 return; 1347 } 1348 done: 1349 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1350 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1351 uhci_idone(ii); 1352 } 1353 1354 /* Called at splusb() */ 1355 void 1356 uhci_idone(uhci_intr_info_t *ii) 1357 { 1358 usbd_xfer_handle xfer = ii->xfer; 1359 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1360 uhci_soft_td_t *std; 1361 u_int32_t status = 0, nstatus; 1362 int actlen; 1363 1364 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1365 #ifdef DIAGNOSTIC 1366 { 1367 int s = splhigh(); 1368 if (ii->isdone) { 1369 splx(s); 1370 #ifdef UHCI_DEBUG 1371 printf("uhci_idone: ii is done!\n "); 1372 uhci_dump_ii(ii); 1373 #else 1374 printf("uhci_idone: ii=%p is done!\n", ii); 1375 #endif 1376 return; 1377 } 1378 ii->isdone = 1; 1379 splx(s); 1380 } 1381 #endif 1382 1383 if (xfer->nframes != 0) { 1384 /* Isoc transfer, do things differently. */ 1385 uhci_soft_td_t **stds = upipe->u.iso.stds; 1386 int i, n, nframes, len; 1387 1388 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1389 1390 nframes = xfer->nframes; 1391 actlen = 0; 1392 n = UXFER(xfer)->curframe; 1393 for (i = 0; i < nframes; i++) { 1394 std = stds[n]; 1395 #ifdef UHCI_DEBUG 1396 if (uhcidebug > 5) { 1397 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1398 uhci_dump_td(std); 1399 } 1400 #endif 1401 if (++n >= UHCI_VFRAMELIST_COUNT) 1402 n = 0; 1403 status = le32toh(std->td.td_status); 1404 len = UHCI_TD_GET_ACTLEN(status); 1405 xfer->frlengths[i] = len; 1406 actlen += len; 1407 } 1408 upipe->u.iso.inuse -= nframes; 1409 xfer->actlen = actlen; 1410 xfer->status = USBD_NORMAL_COMPLETION; 1411 goto end; 1412 } 1413 1414 #ifdef UHCI_DEBUG 1415 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1416 ii, xfer, upipe)); 1417 if (uhcidebug > 10) 1418 uhci_dump_tds(ii->stdstart); 1419 #endif 1420 1421 /* The transfer is done, compute actual length and status. */ 1422 actlen = 0; 1423 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1424 nstatus = le32toh(std->td.td_status); 1425 if (nstatus & UHCI_TD_ACTIVE) 1426 break; 1427 1428 status = nstatus; 1429 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1430 UHCI_TD_PID_SETUP) 1431 actlen += UHCI_TD_GET_ACTLEN(status); 1432 else { 1433 /* 1434 * UHCI will report CRCTO in addition to a STALL or NAK 1435 * for a SETUP transaction. See section 3.2.2, "TD 1436 * CONTROL AND STATUS". 1437 */ 1438 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1439 status &= ~UHCI_TD_CRCTO; 1440 } 1441 } 1442 /* If there are left over TDs we need to update the toggle. */ 1443 if (std != NULL) 1444 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1445 1446 status &= UHCI_TD_ERROR; 1447 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1448 actlen, status)); 1449 xfer->actlen = actlen; 1450 if (status != 0) { 1451 #ifdef UHCI_DEBUG 1452 char sbuf[128]; 1453 1454 bitmask_snprintf((u_int32_t)status, 1455 "\2\22BITSTUFF\23CRCTO\24NAK\25" 1456 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1457 sbuf, sizeof(sbuf)); 1458 1459 DPRINTFN((status == UHCI_TD_STALLED)*10, 1460 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1461 "status 0x%s\n", 1462 xfer->pipe->device->address, 1463 xfer->pipe->endpoint->edesc->bEndpointAddress, 1464 sbuf)); 1465 #endif 1466 1467 if (status == UHCI_TD_STALLED) 1468 xfer->status = USBD_STALLED; 1469 else 1470 xfer->status = USBD_IOERROR; /* more info XXX */ 1471 } else { 1472 xfer->status = USBD_NORMAL_COMPLETION; 1473 } 1474 1475 end: 1476 usb_transfer_complete(xfer); 1477 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1478 } 1479 1480 /* 1481 * Called when a request does not complete. 1482 */ 1483 void 1484 uhci_timeout(void *addr) 1485 { 1486 uhci_intr_info_t *ii = addr; 1487 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1488 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1489 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1490 1491 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1492 1493 if (sc->sc_dying) { 1494 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1495 return; 1496 } 1497 1498 /* Execute the abort in a process context. */ 1499 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1500 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1501 } 1502 1503 void 1504 uhci_timeout_task(void *addr) 1505 { 1506 usbd_xfer_handle xfer = addr; 1507 int s; 1508 1509 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1510 1511 s = splusb(); 1512 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1513 splx(s); 1514 } 1515 1516 /* 1517 * Wait here until controller claims to have an interrupt. 1518 * Then call uhci_intr and return. Use timeout to avoid waiting 1519 * too long. 1520 * Only used during boot when interrupts are not enabled yet. 1521 */ 1522 void 1523 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1524 { 1525 int timo = xfer->timeout; 1526 uhci_intr_info_t *ii; 1527 1528 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1529 1530 xfer->status = USBD_IN_PROGRESS; 1531 for (; timo >= 0; timo--) { 1532 usb_delay_ms(&sc->sc_bus, 1); 1533 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1534 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1535 uhci_intr1(sc); 1536 if (xfer->status != USBD_IN_PROGRESS) 1537 return; 1538 } 1539 } 1540 1541 /* Timeout */ 1542 DPRINTF(("uhci_waitintr: timeout\n")); 1543 for (ii = LIST_FIRST(&sc->sc_intrhead); 1544 ii != NULL && ii->xfer != xfer; 1545 ii = LIST_NEXT(ii, list)) 1546 ; 1547 #ifdef DIAGNOSTIC 1548 if (ii == NULL) 1549 panic("uhci_waitintr: lost intr_info"); 1550 #endif 1551 uhci_idone(ii); 1552 } 1553 1554 void 1555 uhci_poll(struct usbd_bus *bus) 1556 { 1557 uhci_softc_t *sc = (uhci_softc_t *)bus; 1558 1559 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1560 uhci_intr1(sc); 1561 } 1562 1563 void 1564 uhci_reset(uhci_softc_t *sc) 1565 { 1566 int n; 1567 1568 UHCICMD(sc, UHCI_CMD_HCRESET); 1569 /* The reset bit goes low when the controller is done. */ 1570 for (n = 0; n < UHCI_RESET_TIMEOUT && 1571 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1572 usb_delay_ms(&sc->sc_bus, 1); 1573 if (n >= UHCI_RESET_TIMEOUT) 1574 printf("%s: controller did not reset\n", 1575 USBDEVNAME(sc->sc_bus.bdev)); 1576 } 1577 1578 usbd_status 1579 uhci_run(uhci_softc_t *sc, int run) 1580 { 1581 int s, n, running; 1582 u_int16_t cmd; 1583 1584 run = run != 0; 1585 s = splhardusb(); 1586 DPRINTF(("uhci_run: setting run=%d\n", run)); 1587 cmd = UREAD2(sc, UHCI_CMD); 1588 if (run) 1589 cmd |= UHCI_CMD_RS; 1590 else 1591 cmd &= ~UHCI_CMD_RS; 1592 UHCICMD(sc, cmd); 1593 for(n = 0; n < 10; n++) { 1594 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1595 /* return when we've entered the state we want */ 1596 if (run == running) { 1597 splx(s); 1598 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1599 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1600 return (USBD_NORMAL_COMPLETION); 1601 } 1602 usb_delay_ms(&sc->sc_bus, 1); 1603 } 1604 splx(s); 1605 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1606 run ? "start" : "stop"); 1607 return (USBD_IOERROR); 1608 } 1609 1610 /* 1611 * Memory management routines. 1612 * uhci_alloc_std allocates TDs 1613 * uhci_alloc_sqh allocates QHs 1614 * These two routines do their own free list management, 1615 * partly for speed, partly because allocating DMAable memory 1616 * has page size granularaity so much memory would be wasted if 1617 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1618 */ 1619 1620 uhci_soft_td_t * 1621 uhci_alloc_std(uhci_softc_t *sc) 1622 { 1623 uhci_soft_td_t *std; 1624 usbd_status err; 1625 int i, offs; 1626 usb_dma_t dma; 1627 1628 if (sc->sc_freetds == NULL) { 1629 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1630 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1631 UHCI_TD_ALIGN, &dma); 1632 if (err) 1633 return (0); 1634 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1635 offs = i * UHCI_STD_SIZE; 1636 std = KERNADDR(&dma, offs); 1637 std->physaddr = DMAADDR(&dma, offs); 1638 std->link.std = sc->sc_freetds; 1639 sc->sc_freetds = std; 1640 } 1641 } 1642 std = sc->sc_freetds; 1643 sc->sc_freetds = std->link.std; 1644 memset(&std->td, 0, sizeof(uhci_td_t)); 1645 return std; 1646 } 1647 1648 void 1649 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1650 { 1651 #ifdef DIAGNOSTIC 1652 #define TD_IS_FREE 0x12345678 1653 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1654 printf("uhci_free_std: freeing free TD %p\n", std); 1655 return; 1656 } 1657 std->td.td_token = htole32(TD_IS_FREE); 1658 #endif 1659 std->link.std = sc->sc_freetds; 1660 sc->sc_freetds = std; 1661 } 1662 1663 uhci_soft_qh_t * 1664 uhci_alloc_sqh(uhci_softc_t *sc) 1665 { 1666 uhci_soft_qh_t *sqh; 1667 usbd_status err; 1668 int i, offs; 1669 usb_dma_t dma; 1670 1671 if (sc->sc_freeqhs == NULL) { 1672 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1673 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1674 UHCI_QH_ALIGN, &dma); 1675 if (err) 1676 return (0); 1677 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1678 offs = i * UHCI_SQH_SIZE; 1679 sqh = KERNADDR(&dma, offs); 1680 sqh->physaddr = DMAADDR(&dma, offs); 1681 sqh->hlink = sc->sc_freeqhs; 1682 sc->sc_freeqhs = sqh; 1683 } 1684 } 1685 sqh = sc->sc_freeqhs; 1686 sc->sc_freeqhs = sqh->hlink; 1687 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1688 return (sqh); 1689 } 1690 1691 void 1692 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1693 { 1694 sqh->hlink = sc->sc_freeqhs; 1695 sc->sc_freeqhs = sqh; 1696 } 1697 1698 void 1699 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1700 uhci_soft_td_t *stdend) 1701 { 1702 uhci_soft_td_t *p; 1703 1704 for (; std != stdend; std = p) { 1705 p = std->link.std; 1706 uhci_free_std(sc, std); 1707 } 1708 } 1709 1710 usbd_status 1711 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1712 int rd, u_int16_t flags, usb_dma_t *dma, 1713 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1714 { 1715 uhci_soft_td_t *p, *lastp; 1716 uhci_physaddr_t lastlink; 1717 int i, ntd, l, tog, maxp; 1718 u_int32_t status; 1719 int addr = upipe->pipe.device->address; 1720 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1721 1722 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1723 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1724 upipe->pipe.device->speed, flags)); 1725 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1726 if (maxp == 0) { 1727 printf("uhci_alloc_std_chain: maxp=0\n"); 1728 return (USBD_INVAL); 1729 } 1730 ntd = (len + maxp - 1) / maxp; 1731 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1732 ntd++; 1733 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1734 if (ntd == 0) { 1735 *sp = *ep = 0; 1736 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1737 return (USBD_NORMAL_COMPLETION); 1738 } 1739 tog = upipe->nexttoggle; 1740 if (ntd % 2 == 0) 1741 tog ^= 1; 1742 upipe->nexttoggle = tog ^ 1; 1743 lastp = NULL; 1744 lastlink = UHCI_PTR_T; 1745 ntd--; 1746 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1747 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1748 status |= UHCI_TD_LS; 1749 if (flags & USBD_SHORT_XFER_OK) 1750 status |= UHCI_TD_SPD; 1751 for (i = ntd; i >= 0; i--) { 1752 p = uhci_alloc_std(sc); 1753 if (p == NULL) { 1754 uhci_free_std_chain(sc, lastp, NULL); 1755 return (USBD_NOMEM); 1756 } 1757 p->link.std = lastp; 1758 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1759 lastp = p; 1760 lastlink = p->physaddr; 1761 p->td.td_status = htole32(status); 1762 if (i == ntd) { 1763 /* last TD */ 1764 l = len % maxp; 1765 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1766 l = maxp; 1767 *ep = p; 1768 } else 1769 l = maxp; 1770 p->td.td_token = 1771 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1772 UHCI_TD_OUT(l, endpt, addr, tog)); 1773 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1774 tog ^= 1; 1775 } 1776 *sp = lastp; 1777 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1778 upipe->nexttoggle)); 1779 return (USBD_NORMAL_COMPLETION); 1780 } 1781 1782 void 1783 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1784 { 1785 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1786 upipe->nexttoggle = 0; 1787 } 1788 1789 void 1790 uhci_noop(usbd_pipe_handle pipe) 1791 { 1792 } 1793 1794 usbd_status 1795 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1796 { 1797 usbd_status err; 1798 1799 /* Insert last in queue. */ 1800 err = usb_insert_transfer(xfer); 1801 if (err) 1802 return (err); 1803 1804 /* 1805 * Pipe isn't running (otherwise err would be USBD_INPROG), 1806 * so start it first. 1807 */ 1808 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1809 } 1810 1811 usbd_status 1812 uhci_device_bulk_start(usbd_xfer_handle xfer) 1813 { 1814 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1815 usbd_device_handle dev = upipe->pipe.device; 1816 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1817 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1818 uhci_soft_td_t *data, *dataend; 1819 uhci_soft_qh_t *sqh; 1820 usbd_status err; 1821 int len, isread, endpt; 1822 int s; 1823 1824 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1825 xfer, xfer->length, xfer->flags, ii)); 1826 1827 if (sc->sc_dying) 1828 return (USBD_IOERROR); 1829 1830 #ifdef DIAGNOSTIC 1831 if (xfer->rqflags & URQ_REQUEST) 1832 panic("uhci_device_bulk_transfer: a request"); 1833 #endif 1834 1835 len = xfer->length; 1836 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1837 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1838 sqh = upipe->u.bulk.sqh; 1839 1840 upipe->u.bulk.isread = isread; 1841 upipe->u.bulk.length = len; 1842 1843 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1844 &xfer->dmabuf, &data, &dataend); 1845 if (err) 1846 return (err); 1847 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1848 1849 #ifdef UHCI_DEBUG 1850 if (uhcidebug > 8) { 1851 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1852 uhci_dump_tds(data); 1853 } 1854 #endif 1855 1856 /* Set up interrupt info. */ 1857 ii->xfer = xfer; 1858 ii->stdstart = data; 1859 ii->stdend = dataend; 1860 #ifdef DIAGNOSTIC 1861 if (!ii->isdone) { 1862 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1863 } 1864 ii->isdone = 0; 1865 #endif 1866 1867 sqh->elink = data; 1868 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1869 1870 s = splusb(); 1871 uhci_add_bulk(sc, sqh); 1872 uhci_add_intr_info(sc, ii); 1873 1874 if (xfer->timeout && !sc->sc_bus.use_polling) { 1875 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1876 uhci_timeout, ii); 1877 } 1878 xfer->status = USBD_IN_PROGRESS; 1879 splx(s); 1880 1881 #ifdef UHCI_DEBUG 1882 if (uhcidebug > 10) { 1883 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1884 uhci_dump_tds(data); 1885 } 1886 #endif 1887 1888 if (sc->sc_bus.use_polling) 1889 uhci_waitintr(sc, xfer); 1890 1891 return (USBD_IN_PROGRESS); 1892 } 1893 1894 /* Abort a device bulk request. */ 1895 void 1896 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1897 { 1898 DPRINTF(("uhci_device_bulk_abort:\n")); 1899 uhci_abort_xfer(xfer, USBD_CANCELLED); 1900 } 1901 1902 /* 1903 * Abort a device request. 1904 * If this routine is called at splusb() it guarantees that the request 1905 * will be removed from the hardware scheduling and that the callback 1906 * for it will be called with USBD_CANCELLED status. 1907 * It's impossible to guarantee that the requested transfer will not 1908 * have happened since the hardware runs concurrently. 1909 * If the transaction has already happened we rely on the ordinary 1910 * interrupt processing to process it. 1911 */ 1912 void 1913 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1914 { 1915 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1916 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1917 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1918 uhci_soft_td_t *std; 1919 int s; 1920 1921 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1922 1923 if (sc->sc_dying) { 1924 /* If we're dying, just do the software part. */ 1925 s = splusb(); 1926 xfer->status = status; /* make software ignore it */ 1927 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1928 usb_transfer_complete(xfer); 1929 splx(s); 1930 } 1931 1932 if (xfer->device->bus->intr_context || !curproc) 1933 panic("uhci_abort_xfer: not in process context"); 1934 1935 /* 1936 * Step 1: Make interrupt routine and hardware ignore xfer. 1937 */ 1938 s = splusb(); 1939 xfer->status = status; /* make software ignore it */ 1940 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1941 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1942 for (std = ii->stdstart; std != NULL; std = std->link.std) 1943 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1944 splx(s); 1945 1946 /* 1947 * Step 2: Wait until we know hardware has finished any possible 1948 * use of the xfer. Also make sure the soft interrupt routine 1949 * has run. 1950 */ 1951 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1952 s = splusb(); 1953 #ifdef USB_USE_SOFTINTR 1954 sc->sc_softwake = 1; 1955 #endif /* USB_USE_SOFTINTR */ 1956 usb_schedsoftintr(&sc->sc_bus); 1957 #ifdef USB_USE_SOFTINTR 1958 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1959 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1960 #endif /* USB_USE_SOFTINTR */ 1961 splx(s); 1962 1963 /* 1964 * Step 3: Execute callback. 1965 */ 1966 xfer->hcpriv = ii; 1967 1968 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1969 s = splusb(); 1970 #ifdef DIAGNOSTIC 1971 ii->isdone = 1; 1972 #endif 1973 usb_transfer_complete(xfer); 1974 splx(s); 1975 } 1976 1977 /* Close a device bulk pipe. */ 1978 void 1979 uhci_device_bulk_close(usbd_pipe_handle pipe) 1980 { 1981 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1982 usbd_device_handle dev = upipe->pipe.device; 1983 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1984 1985 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1986 } 1987 1988 usbd_status 1989 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1990 { 1991 usbd_status err; 1992 1993 /* Insert last in queue. */ 1994 err = usb_insert_transfer(xfer); 1995 if (err) 1996 return (err); 1997 1998 /* 1999 * Pipe isn't running (otherwise err would be USBD_INPROG), 2000 * so start it first. 2001 */ 2002 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2003 } 2004 2005 usbd_status 2006 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2007 { 2008 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2009 usbd_status err; 2010 2011 if (sc->sc_dying) 2012 return (USBD_IOERROR); 2013 2014 #ifdef DIAGNOSTIC 2015 if (!(xfer->rqflags & URQ_REQUEST)) 2016 panic("uhci_device_ctrl_transfer: not a request"); 2017 #endif 2018 2019 err = uhci_device_request(xfer); 2020 if (err) 2021 return (err); 2022 2023 if (sc->sc_bus.use_polling) 2024 uhci_waitintr(sc, xfer); 2025 return (USBD_IN_PROGRESS); 2026 } 2027 2028 usbd_status 2029 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2030 { 2031 usbd_status err; 2032 2033 /* Insert last in queue. */ 2034 err = usb_insert_transfer(xfer); 2035 if (err) 2036 return (err); 2037 2038 /* 2039 * Pipe isn't running (otherwise err would be USBD_INPROG), 2040 * so start it first. 2041 */ 2042 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2043 } 2044 2045 usbd_status 2046 uhci_device_intr_start(usbd_xfer_handle xfer) 2047 { 2048 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2049 usbd_device_handle dev = upipe->pipe.device; 2050 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2051 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2052 uhci_soft_td_t *data, *dataend; 2053 uhci_soft_qh_t *sqh; 2054 usbd_status err; 2055 int i, s; 2056 2057 if (sc->sc_dying) 2058 return (USBD_IOERROR); 2059 2060 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2061 xfer, xfer->length, xfer->flags)); 2062 2063 #ifdef DIAGNOSTIC 2064 if (xfer->rqflags & URQ_REQUEST) 2065 panic("uhci_device_intr_transfer: a request"); 2066 #endif 2067 2068 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2069 &xfer->dmabuf, &data, &dataend); 2070 if (err) 2071 return (err); 2072 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2073 2074 #ifdef UHCI_DEBUG 2075 if (uhcidebug > 10) { 2076 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2077 uhci_dump_tds(data); 2078 uhci_dump_qh(upipe->u.intr.qhs[0]); 2079 } 2080 #endif 2081 2082 s = splusb(); 2083 /* Set up interrupt info. */ 2084 ii->xfer = xfer; 2085 ii->stdstart = data; 2086 ii->stdend = dataend; 2087 #ifdef DIAGNOSTIC 2088 if (!ii->isdone) { 2089 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2090 } 2091 ii->isdone = 0; 2092 #endif 2093 2094 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2095 upipe->u.intr.qhs[0])); 2096 for (i = 0; i < upipe->u.intr.npoll; i++) { 2097 sqh = upipe->u.intr.qhs[i]; 2098 sqh->elink = data; 2099 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2100 } 2101 uhci_add_intr_info(sc, ii); 2102 xfer->status = USBD_IN_PROGRESS; 2103 splx(s); 2104 2105 #ifdef UHCI_DEBUG 2106 if (uhcidebug > 10) { 2107 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2108 uhci_dump_tds(data); 2109 uhci_dump_qh(upipe->u.intr.qhs[0]); 2110 } 2111 #endif 2112 2113 return (USBD_IN_PROGRESS); 2114 } 2115 2116 /* Abort a device control request. */ 2117 void 2118 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2119 { 2120 DPRINTF(("uhci_device_ctrl_abort:\n")); 2121 uhci_abort_xfer(xfer, USBD_CANCELLED); 2122 } 2123 2124 /* Close a device control pipe. */ 2125 void 2126 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2127 { 2128 } 2129 2130 /* Abort a device interrupt request. */ 2131 void 2132 uhci_device_intr_abort(usbd_xfer_handle xfer) 2133 { 2134 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2135 if (xfer->pipe->intrxfer == xfer) { 2136 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2137 xfer->pipe->intrxfer = NULL; 2138 } 2139 uhci_abort_xfer(xfer, USBD_CANCELLED); 2140 } 2141 2142 /* Close a device interrupt pipe. */ 2143 void 2144 uhci_device_intr_close(usbd_pipe_handle pipe) 2145 { 2146 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2147 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2148 int i, npoll; 2149 int s; 2150 2151 /* Unlink descriptors from controller data structures. */ 2152 npoll = upipe->u.intr.npoll; 2153 s = splusb(); 2154 for (i = 0; i < npoll; i++) 2155 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2156 splx(s); 2157 2158 /* 2159 * We now have to wait for any activity on the physical 2160 * descriptors to stop. 2161 */ 2162 usb_delay_ms(&sc->sc_bus, 2); 2163 2164 for(i = 0; i < npoll; i++) 2165 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2166 free(upipe->u.intr.qhs, M_USBHC); 2167 2168 /* XXX free other resources */ 2169 } 2170 2171 usbd_status 2172 uhci_device_request(usbd_xfer_handle xfer) 2173 { 2174 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2175 usb_device_request_t *req = &xfer->request; 2176 usbd_device_handle dev = upipe->pipe.device; 2177 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2178 int addr = dev->address; 2179 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2180 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2181 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2182 uhci_soft_qh_t *sqh; 2183 int len; 2184 u_int32_t ls; 2185 usbd_status err; 2186 int isread; 2187 int s; 2188 2189 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2190 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2191 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2192 UGETW(req->wIndex), UGETW(req->wLength), 2193 addr, endpt)); 2194 2195 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2196 isread = req->bmRequestType & UT_READ; 2197 len = UGETW(req->wLength); 2198 2199 setup = upipe->u.ctl.setup; 2200 stat = upipe->u.ctl.stat; 2201 sqh = upipe->u.ctl.sqh; 2202 2203 /* Set up data transaction */ 2204 if (len != 0) { 2205 upipe->nexttoggle = 1; 2206 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2207 &xfer->dmabuf, &data, &dataend); 2208 if (err) 2209 return (err); 2210 next = data; 2211 dataend->link.std = stat; 2212 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2213 } else { 2214 next = stat; 2215 } 2216 upipe->u.ctl.length = len; 2217 2218 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2219 2220 setup->link.std = next; 2221 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2222 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2223 UHCI_TD_ACTIVE); 2224 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2225 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2226 2227 stat->link.std = NULL; 2228 stat->td.td_link = htole32(UHCI_PTR_T); 2229 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2230 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2231 stat->td.td_token = 2232 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2233 UHCI_TD_IN (0, endpt, addr, 1)); 2234 stat->td.td_buffer = htole32(0); 2235 2236 #ifdef UHCI_DEBUG 2237 if (uhcidebug > 10) { 2238 DPRINTF(("uhci_device_request: before transfer\n")); 2239 uhci_dump_tds(setup); 2240 } 2241 #endif 2242 2243 /* Set up interrupt info. */ 2244 ii->xfer = xfer; 2245 ii->stdstart = setup; 2246 ii->stdend = stat; 2247 #ifdef DIAGNOSTIC 2248 if (!ii->isdone) { 2249 printf("uhci_device_request: not done, ii=%p\n", ii); 2250 } 2251 ii->isdone = 0; 2252 #endif 2253 2254 sqh->elink = setup; 2255 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2256 2257 s = splusb(); 2258 if (dev->speed == USB_SPEED_LOW) 2259 uhci_add_ls_ctrl(sc, sqh); 2260 else 2261 uhci_add_hs_ctrl(sc, sqh); 2262 uhci_add_intr_info(sc, ii); 2263 #ifdef UHCI_DEBUG 2264 if (uhcidebug > 12) { 2265 uhci_soft_td_t *std; 2266 uhci_soft_qh_t *xqh; 2267 uhci_soft_qh_t *sxqh; 2268 int maxqh = 0; 2269 uhci_physaddr_t link; 2270 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2271 for (std = sc->sc_vframes[0].htd, link = 0; 2272 (link & UHCI_PTR_QH) == 0; 2273 std = std->link.std) { 2274 link = le32toh(std->td.td_link); 2275 uhci_dump_td(std); 2276 } 2277 sxqh = (uhci_soft_qh_t *)std; 2278 uhci_dump_qh(sxqh); 2279 for (xqh = sxqh; 2280 xqh != NULL; 2281 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2282 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2283 uhci_dump_qh(xqh); 2284 } 2285 DPRINTF(("Enqueued QH:\n")); 2286 uhci_dump_qh(sqh); 2287 uhci_dump_tds(sqh->elink); 2288 } 2289 #endif 2290 if (xfer->timeout && !sc->sc_bus.use_polling) { 2291 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2292 uhci_timeout, ii); 2293 } 2294 xfer->status = USBD_IN_PROGRESS; 2295 splx(s); 2296 2297 return (USBD_NORMAL_COMPLETION); 2298 } 2299 2300 usbd_status 2301 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2302 { 2303 usbd_status err; 2304 2305 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2306 2307 /* Put it on our queue, */ 2308 err = usb_insert_transfer(xfer); 2309 2310 /* bail out on error, */ 2311 if (err && err != USBD_IN_PROGRESS) 2312 return (err); 2313 2314 /* XXX should check inuse here */ 2315 2316 /* insert into schedule, */ 2317 uhci_device_isoc_enter(xfer); 2318 2319 /* and start if the pipe wasn't running */ 2320 if (!err) 2321 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2322 2323 return (err); 2324 } 2325 2326 void 2327 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2328 { 2329 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2330 usbd_device_handle dev = upipe->pipe.device; 2331 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2332 struct iso *iso = &upipe->u.iso; 2333 uhci_soft_td_t *std; 2334 u_int32_t buf, len, status; 2335 int s, i, next, nframes; 2336 2337 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2338 "nframes=%d\n", 2339 iso->inuse, iso->next, xfer, xfer->nframes)); 2340 2341 if (sc->sc_dying) 2342 return; 2343 2344 if (xfer->status == USBD_IN_PROGRESS) { 2345 /* This request has already been entered into the frame list */ 2346 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2347 /* XXX */ 2348 } 2349 2350 #ifdef DIAGNOSTIC 2351 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2352 printf("uhci_device_isoc_enter: overflow!\n"); 2353 #endif 2354 2355 next = iso->next; 2356 if (next == -1) { 2357 /* Not in use yet, schedule it a few frames ahead. */ 2358 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2359 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2360 } 2361 2362 xfer->status = USBD_IN_PROGRESS; 2363 UXFER(xfer)->curframe = next; 2364 2365 buf = DMAADDR(&xfer->dmabuf, 0); 2366 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2367 UHCI_TD_ACTIVE | 2368 UHCI_TD_IOS); 2369 nframes = xfer->nframes; 2370 s = splusb(); 2371 for (i = 0; i < nframes; i++) { 2372 std = iso->stds[next]; 2373 if (++next >= UHCI_VFRAMELIST_COUNT) 2374 next = 0; 2375 len = xfer->frlengths[i]; 2376 std->td.td_buffer = htole32(buf); 2377 if (i == nframes - 1) 2378 status |= UHCI_TD_IOC; 2379 std->td.td_status = htole32(status); 2380 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2381 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2382 #ifdef UHCI_DEBUG 2383 if (uhcidebug > 5) { 2384 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2385 uhci_dump_td(std); 2386 } 2387 #endif 2388 buf += len; 2389 } 2390 iso->next = next; 2391 iso->inuse += xfer->nframes; 2392 2393 splx(s); 2394 } 2395 2396 usbd_status 2397 uhci_device_isoc_start(usbd_xfer_handle xfer) 2398 { 2399 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2400 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2401 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2402 uhci_soft_td_t *end; 2403 int s, i; 2404 2405 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2406 2407 if (sc->sc_dying) 2408 return (USBD_IOERROR); 2409 2410 #ifdef DIAGNOSTIC 2411 if (xfer->status != USBD_IN_PROGRESS) 2412 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2413 #endif 2414 2415 /* Find the last TD */ 2416 i = UXFER(xfer)->curframe + xfer->nframes; 2417 if (i >= UHCI_VFRAMELIST_COUNT) 2418 i -= UHCI_VFRAMELIST_COUNT; 2419 end = upipe->u.iso.stds[i]; 2420 2421 #ifdef DIAGNOSTIC 2422 if (end == NULL) { 2423 printf("uhci_device_isoc_start: end == NULL\n"); 2424 return (USBD_INVAL); 2425 } 2426 #endif 2427 2428 s = splusb(); 2429 2430 /* Set up interrupt info. */ 2431 ii->xfer = xfer; 2432 ii->stdstart = end; 2433 ii->stdend = end; 2434 #ifdef DIAGNOSTIC 2435 if (!ii->isdone) 2436 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2437 ii->isdone = 0; 2438 #endif 2439 uhci_add_intr_info(sc, ii); 2440 2441 splx(s); 2442 2443 return (USBD_IN_PROGRESS); 2444 } 2445 2446 void 2447 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2448 { 2449 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2450 uhci_soft_td_t **stds = upipe->u.iso.stds; 2451 uhci_soft_td_t *std; 2452 int i, n, s, nframes, maxlen, len; 2453 2454 s = splusb(); 2455 2456 /* Transfer is already done. */ 2457 if (xfer->status != USBD_NOT_STARTED && 2458 xfer->status != USBD_IN_PROGRESS) { 2459 splx(s); 2460 return; 2461 } 2462 2463 /* Give xfer the requested abort code. */ 2464 xfer->status = USBD_CANCELLED; 2465 2466 /* make hardware ignore it, */ 2467 nframes = xfer->nframes; 2468 n = UXFER(xfer)->curframe; 2469 maxlen = 0; 2470 for (i = 0; i < nframes; i++) { 2471 std = stds[n]; 2472 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2473 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2474 if (len > maxlen) 2475 maxlen = len; 2476 if (++n >= UHCI_VFRAMELIST_COUNT) 2477 n = 0; 2478 } 2479 2480 /* and wait until we are sure the hardware has finished. */ 2481 delay(maxlen); 2482 2483 #ifdef DIAGNOSTIC 2484 UXFER(xfer)->iinfo.isdone = 1; 2485 #endif 2486 /* Run callback and remove from interrupt list. */ 2487 usb_transfer_complete(xfer); 2488 2489 splx(s); 2490 } 2491 2492 void 2493 uhci_device_isoc_close(usbd_pipe_handle pipe) 2494 { 2495 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2496 usbd_device_handle dev = upipe->pipe.device; 2497 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2498 uhci_soft_td_t *std, *vstd; 2499 struct iso *iso; 2500 int i, s; 2501 2502 /* 2503 * Make sure all TDs are marked as inactive. 2504 * Wait for completion. 2505 * Unschedule. 2506 * Deallocate. 2507 */ 2508 iso = &upipe->u.iso; 2509 2510 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2511 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2512 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2513 2514 s = splusb(); 2515 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2516 std = iso->stds[i]; 2517 for (vstd = sc->sc_vframes[i].htd; 2518 vstd != NULL && vstd->link.std != std; 2519 vstd = vstd->link.std) 2520 ; 2521 if (vstd == NULL) { 2522 /*panic*/ 2523 printf("uhci_device_isoc_close: %p not found\n", std); 2524 splx(s); 2525 return; 2526 } 2527 vstd->link = std->link; 2528 vstd->td.td_link = std->td.td_link; 2529 uhci_free_std(sc, std); 2530 } 2531 splx(s); 2532 2533 free(iso->stds, M_USBHC); 2534 } 2535 2536 usbd_status 2537 uhci_setup_isoc(usbd_pipe_handle pipe) 2538 { 2539 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2540 usbd_device_handle dev = upipe->pipe.device; 2541 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2542 int addr = upipe->pipe.device->address; 2543 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2544 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2545 uhci_soft_td_t *std, *vstd; 2546 u_int32_t token; 2547 struct iso *iso; 2548 int i, s; 2549 2550 iso = &upipe->u.iso; 2551 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2552 M_USBHC, M_WAITOK); 2553 2554 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2555 UHCI_TD_OUT(0, endpt, addr, 0); 2556 2557 /* Allocate the TDs and mark as inactive; */ 2558 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2559 std = uhci_alloc_std(sc); 2560 if (std == 0) 2561 goto bad; 2562 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2563 std->td.td_token = htole32(token); 2564 iso->stds[i] = std; 2565 } 2566 2567 /* Insert TDs into schedule. */ 2568 s = splusb(); 2569 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2570 std = iso->stds[i]; 2571 vstd = sc->sc_vframes[i].htd; 2572 std->link = vstd->link; 2573 std->td.td_link = vstd->td.td_link; 2574 vstd->link.std = std; 2575 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2576 } 2577 splx(s); 2578 2579 iso->next = -1; 2580 iso->inuse = 0; 2581 2582 return (USBD_NORMAL_COMPLETION); 2583 2584 bad: 2585 while (--i >= 0) 2586 uhci_free_std(sc, iso->stds[i]); 2587 free(iso->stds, M_USBHC); 2588 return (USBD_NOMEM); 2589 } 2590 2591 void 2592 uhci_device_isoc_done(usbd_xfer_handle xfer) 2593 { 2594 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2595 2596 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2597 2598 if (ii->xfer != xfer) 2599 /* Not on interrupt list, ignore it. */ 2600 return; 2601 2602 if (!uhci_active_intr_info(ii)) 2603 return; 2604 2605 #ifdef DIAGNOSTIC 2606 if (xfer->busy_free != XFER_BUSY) { 2607 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2608 xfer, xfer->busy_free); 2609 return; 2610 } 2611 2612 if (ii->stdend == NULL) { 2613 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2614 #ifdef UHCI_DEBUG 2615 uhci_dump_ii(ii); 2616 #endif 2617 return; 2618 } 2619 #endif 2620 2621 /* Turn off the interrupt since it is active even if the TD is not. */ 2622 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2623 2624 uhci_del_intr_info(ii); /* remove from active list */ 2625 } 2626 2627 void 2628 uhci_device_intr_done(usbd_xfer_handle xfer) 2629 { 2630 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2631 uhci_softc_t *sc = ii->sc; 2632 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2633 uhci_soft_qh_t *sqh; 2634 int i, npoll; 2635 2636 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2637 2638 npoll = upipe->u.intr.npoll; 2639 for(i = 0; i < npoll; i++) { 2640 sqh = upipe->u.intr.qhs[i]; 2641 sqh->elink = NULL; 2642 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2643 } 2644 uhci_free_std_chain(sc, ii->stdstart, NULL); 2645 2646 /* XXX Wasteful. */ 2647 if (xfer->pipe->repeat) { 2648 uhci_soft_td_t *data, *dataend; 2649 2650 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2651 2652 /* This alloc cannot fail since we freed the chain above. */ 2653 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2654 &xfer->dmabuf, &data, &dataend); 2655 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2656 2657 #ifdef UHCI_DEBUG 2658 if (uhcidebug > 10) { 2659 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2660 uhci_dump_tds(data); 2661 uhci_dump_qh(upipe->u.intr.qhs[0]); 2662 } 2663 #endif 2664 2665 ii->stdstart = data; 2666 ii->stdend = dataend; 2667 #ifdef DIAGNOSTIC 2668 if (!ii->isdone) { 2669 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2670 } 2671 ii->isdone = 0; 2672 #endif 2673 for (i = 0; i < npoll; i++) { 2674 sqh = upipe->u.intr.qhs[i]; 2675 sqh->elink = data; 2676 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2677 } 2678 xfer->status = USBD_IN_PROGRESS; 2679 /* The ii is already on the examined list, just leave it. */ 2680 } else { 2681 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2682 if (uhci_active_intr_info(ii)) 2683 uhci_del_intr_info(ii); 2684 } 2685 } 2686 2687 /* Deallocate request data structures */ 2688 void 2689 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2690 { 2691 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2692 uhci_softc_t *sc = ii->sc; 2693 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2694 2695 #ifdef DIAGNOSTIC 2696 if (!(xfer->rqflags & URQ_REQUEST)) 2697 panic("uhci_device_ctrl_done: not a request"); 2698 #endif 2699 2700 if (!uhci_active_intr_info(ii)) 2701 return; 2702 2703 uhci_del_intr_info(ii); /* remove from active list */ 2704 2705 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2706 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2707 else 2708 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2709 2710 if (upipe->u.ctl.length != 0) 2711 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2712 2713 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2714 } 2715 2716 /* Deallocate request data structures */ 2717 void 2718 uhci_device_bulk_done(usbd_xfer_handle xfer) 2719 { 2720 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2721 uhci_softc_t *sc = ii->sc; 2722 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2723 2724 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2725 xfer, ii, sc, upipe)); 2726 2727 if (!uhci_active_intr_info(ii)) 2728 return; 2729 2730 uhci_del_intr_info(ii); /* remove from active list */ 2731 2732 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2733 2734 uhci_free_std_chain(sc, ii->stdstart, NULL); 2735 2736 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2737 } 2738 2739 /* Add interrupt QH, called with vflock. */ 2740 void 2741 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2742 { 2743 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2744 uhci_soft_qh_t *eqh; 2745 2746 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2747 2748 eqh = vf->eqh; 2749 sqh->hlink = eqh->hlink; 2750 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2751 eqh->hlink = sqh; 2752 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2753 vf->eqh = sqh; 2754 vf->bandwidth++; 2755 } 2756 2757 /* Remove interrupt QH. */ 2758 void 2759 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2760 { 2761 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2762 uhci_soft_qh_t *pqh; 2763 2764 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2765 2766 /* See comment in uhci_remove_ctrl() */ 2767 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2768 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2769 delay(UHCI_QH_REMOVE_DELAY); 2770 } 2771 2772 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2773 pqh->hlink = sqh->hlink; 2774 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2775 delay(UHCI_QH_REMOVE_DELAY); 2776 if (vf->eqh == sqh) 2777 vf->eqh = pqh; 2778 vf->bandwidth--; 2779 } 2780 2781 usbd_status 2782 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2783 { 2784 uhci_soft_qh_t *sqh; 2785 int i, npoll, s; 2786 u_int bestbw, bw, bestoffs, offs; 2787 2788 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2789 if (ival == 0) { 2790 printf("uhci_device_setintr: 0 interval\n"); 2791 return (USBD_INVAL); 2792 } 2793 2794 if (ival > UHCI_VFRAMELIST_COUNT) 2795 ival = UHCI_VFRAMELIST_COUNT; 2796 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2797 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2798 2799 upipe->u.intr.npoll = npoll; 2800 upipe->u.intr.qhs = 2801 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2802 2803 /* 2804 * Figure out which offset in the schedule that has most 2805 * bandwidth left over. 2806 */ 2807 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2808 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2809 for (bw = i = 0; i < npoll; i++) 2810 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2811 if (bw < bestbw) { 2812 bestbw = bw; 2813 bestoffs = offs; 2814 } 2815 } 2816 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2817 2818 for(i = 0; i < npoll; i++) { 2819 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2820 sqh->elink = NULL; 2821 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2822 sqh->pos = MOD(i * ival + bestoffs); 2823 } 2824 #undef MOD 2825 2826 s = splusb(); 2827 /* Enter QHs into the controller data structures. */ 2828 for(i = 0; i < npoll; i++) 2829 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2830 splx(s); 2831 2832 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2833 return (USBD_NORMAL_COMPLETION); 2834 } 2835 2836 /* Open a new pipe. */ 2837 usbd_status 2838 uhci_open(usbd_pipe_handle pipe) 2839 { 2840 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2841 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2842 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2843 usbd_status err; 2844 int ival; 2845 2846 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2847 pipe, pipe->device->address, 2848 ed->bEndpointAddress, sc->sc_addr)); 2849 2850 upipe->aborting = 0; 2851 upipe->nexttoggle = 0; 2852 2853 if (pipe->device->address == sc->sc_addr) { 2854 switch (ed->bEndpointAddress) { 2855 case USB_CONTROL_ENDPOINT: 2856 pipe->methods = &uhci_root_ctrl_methods; 2857 break; 2858 case UE_DIR_IN | UHCI_INTR_ENDPT: 2859 pipe->methods = &uhci_root_intr_methods; 2860 break; 2861 default: 2862 return (USBD_INVAL); 2863 } 2864 } else { 2865 switch (ed->bmAttributes & UE_XFERTYPE) { 2866 case UE_CONTROL: 2867 pipe->methods = &uhci_device_ctrl_methods; 2868 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2869 if (upipe->u.ctl.sqh == NULL) 2870 goto bad; 2871 upipe->u.ctl.setup = uhci_alloc_std(sc); 2872 if (upipe->u.ctl.setup == NULL) { 2873 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2874 goto bad; 2875 } 2876 upipe->u.ctl.stat = uhci_alloc_std(sc); 2877 if (upipe->u.ctl.stat == NULL) { 2878 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2879 uhci_free_std(sc, upipe->u.ctl.setup); 2880 goto bad; 2881 } 2882 err = usb_allocmem(&sc->sc_bus, 2883 sizeof(usb_device_request_t), 2884 0, &upipe->u.ctl.reqdma); 2885 if (err) { 2886 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2887 uhci_free_std(sc, upipe->u.ctl.setup); 2888 uhci_free_std(sc, upipe->u.ctl.stat); 2889 goto bad; 2890 } 2891 break; 2892 case UE_INTERRUPT: 2893 pipe->methods = &uhci_device_intr_methods; 2894 ival = pipe->interval; 2895 if (ival == USBD_DEFAULT_INTERVAL) 2896 ival = ed->bInterval; 2897 return (uhci_device_setintr(sc, upipe, ival)); 2898 case UE_ISOCHRONOUS: 2899 pipe->methods = &uhci_device_isoc_methods; 2900 return (uhci_setup_isoc(pipe)); 2901 case UE_BULK: 2902 pipe->methods = &uhci_device_bulk_methods; 2903 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2904 if (upipe->u.bulk.sqh == NULL) 2905 goto bad; 2906 break; 2907 } 2908 } 2909 return (USBD_NORMAL_COMPLETION); 2910 2911 bad: 2912 return (USBD_NOMEM); 2913 } 2914 2915 /* 2916 * Data structures and routines to emulate the root hub. 2917 */ 2918 usb_device_descriptor_t uhci_devd = { 2919 USB_DEVICE_DESCRIPTOR_SIZE, 2920 UDESC_DEVICE, /* type */ 2921 {0x00, 0x01}, /* USB version */ 2922 UDCLASS_HUB, /* class */ 2923 UDSUBCLASS_HUB, /* subclass */ 2924 UDPROTO_FSHUB, /* protocol */ 2925 64, /* max packet */ 2926 {0},{0},{0x00,0x01}, /* device id */ 2927 1,2,0, /* string indicies */ 2928 1 /* # of configurations */ 2929 }; 2930 2931 usb_config_descriptor_t uhci_confd = { 2932 USB_CONFIG_DESCRIPTOR_SIZE, 2933 UDESC_CONFIG, 2934 {USB_CONFIG_DESCRIPTOR_SIZE + 2935 USB_INTERFACE_DESCRIPTOR_SIZE + 2936 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2937 1, 2938 1, 2939 0, 2940 UC_SELF_POWERED, 2941 0 /* max power */ 2942 }; 2943 2944 usb_interface_descriptor_t uhci_ifcd = { 2945 USB_INTERFACE_DESCRIPTOR_SIZE, 2946 UDESC_INTERFACE, 2947 0, 2948 0, 2949 1, 2950 UICLASS_HUB, 2951 UISUBCLASS_HUB, 2952 UIPROTO_FSHUB, 2953 0 2954 }; 2955 2956 usb_endpoint_descriptor_t uhci_endpd = { 2957 USB_ENDPOINT_DESCRIPTOR_SIZE, 2958 UDESC_ENDPOINT, 2959 UE_DIR_IN | UHCI_INTR_ENDPT, 2960 UE_INTERRUPT, 2961 {8}, 2962 255 2963 }; 2964 2965 usb_hub_descriptor_t uhci_hubd_piix = { 2966 USB_HUB_DESCRIPTOR_SIZE, 2967 UDESC_HUB, 2968 2, 2969 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2970 50, /* power on to power good */ 2971 0, 2972 { 0x00 }, /* both ports are removable */ 2973 }; 2974 2975 int 2976 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2977 { 2978 int i; 2979 2980 if (l == 0) 2981 return (0); 2982 p->bLength = 2 * strlen(s) + 2; 2983 if (l == 1) 2984 return (1); 2985 p->bDescriptorType = UDESC_STRING; 2986 l -= 2; 2987 for (i = 0; s[i] && l > 1; i++, l -= 2) 2988 USETW2(p->bString[i], 0, s[i]); 2989 return (2*i+2); 2990 } 2991 2992 /* 2993 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2994 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2995 * should not be used by the USB subsystem. As we cannot issue a 2996 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2997 * will be enabled as part of the reset. 2998 * 2999 * On the VT83C572, the port cannot be successfully enabled until the 3000 * outstanding "port enable change" and "connection status change" 3001 * events have been reset. 3002 */ 3003 Static usbd_status 3004 uhci_portreset(uhci_softc_t *sc, int index) 3005 { 3006 int lim, port, x; 3007 3008 if (index == 1) 3009 port = UHCI_PORTSC1; 3010 else if (index == 2) 3011 port = UHCI_PORTSC2; 3012 else 3013 return (USBD_IOERROR); 3014 3015 x = URWMASK(UREAD2(sc, port)); 3016 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3017 3018 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3019 3020 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3021 index, UREAD2(sc, port))); 3022 3023 x = URWMASK(UREAD2(sc, port)); 3024 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3025 3026 delay(100); 3027 3028 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3029 index, UREAD2(sc, port))); 3030 3031 x = URWMASK(UREAD2(sc, port)); 3032 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3033 3034 for (lim = 10; --lim > 0;) { 3035 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3036 3037 x = UREAD2(sc, port); 3038 3039 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3040 index, lim, x)); 3041 3042 if (!(x & UHCI_PORTSC_CCS)) { 3043 /* 3044 * No device is connected (or was disconnected 3045 * during reset). Consider the port reset. 3046 * The delay must be long enough to ensure on 3047 * the initial iteration that the device 3048 * connection will have been registered. 50ms 3049 * appears to be sufficient, but 20ms is not. 3050 */ 3051 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3052 index, lim)); 3053 break; 3054 } 3055 3056 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3057 /* 3058 * Port enabled changed and/or connection 3059 * status changed were set. Reset either or 3060 * both raised flags (by writing a 1 to that 3061 * bit), and wait again for state to settle. 3062 */ 3063 UWRITE2(sc, port, URWMASK(x) | 3064 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3065 continue; 3066 } 3067 3068 if (x & UHCI_PORTSC_PE) 3069 /* Port is enabled */ 3070 break; 3071 3072 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3073 } 3074 3075 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3076 index, UREAD2(sc, port))); 3077 3078 if (lim <= 0) { 3079 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3080 return (USBD_TIMEOUT); 3081 } 3082 3083 sc->sc_isreset = 1; 3084 return (USBD_NORMAL_COMPLETION); 3085 } 3086 3087 /* 3088 * Simulate a hardware hub by handling all the necessary requests. 3089 */ 3090 usbd_status 3091 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3092 { 3093 usbd_status err; 3094 3095 /* Insert last in queue. */ 3096 err = usb_insert_transfer(xfer); 3097 if (err) 3098 return (err); 3099 3100 /* 3101 * Pipe isn't running (otherwise err would be USBD_INPROG), 3102 * so start it first. 3103 */ 3104 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3105 } 3106 3107 usbd_status 3108 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3109 { 3110 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3111 usb_device_request_t *req; 3112 void *buf = NULL; 3113 int port, x; 3114 int s, len, value, index, status, change, l, totlen = 0; 3115 usb_port_status_t ps; 3116 usbd_status err; 3117 3118 if (sc->sc_dying) 3119 return (USBD_IOERROR); 3120 3121 #ifdef DIAGNOSTIC 3122 if (!(xfer->rqflags & URQ_REQUEST)) 3123 panic("uhci_root_ctrl_transfer: not a request"); 3124 #endif 3125 req = &xfer->request; 3126 3127 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3128 req->bmRequestType, req->bRequest)); 3129 3130 len = UGETW(req->wLength); 3131 value = UGETW(req->wValue); 3132 index = UGETW(req->wIndex); 3133 3134 if (len != 0) 3135 buf = KERNADDR(&xfer->dmabuf, 0); 3136 3137 #define C(x,y) ((x) | ((y) << 8)) 3138 switch(C(req->bRequest, req->bmRequestType)) { 3139 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3140 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3141 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3142 /* 3143 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3144 * for the integrated root hub. 3145 */ 3146 break; 3147 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3148 if (len > 0) { 3149 *(u_int8_t *)buf = sc->sc_conf; 3150 totlen = 1; 3151 } 3152 break; 3153 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3154 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3155 switch(value >> 8) { 3156 case UDESC_DEVICE: 3157 if ((value & 0xff) != 0) { 3158 err = USBD_IOERROR; 3159 goto ret; 3160 } 3161 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3162 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3163 memcpy(buf, &uhci_devd, l); 3164 break; 3165 case UDESC_CONFIG: 3166 if ((value & 0xff) != 0) { 3167 err = USBD_IOERROR; 3168 goto ret; 3169 } 3170 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3171 memcpy(buf, &uhci_confd, l); 3172 buf = (char *)buf + l; 3173 len -= l; 3174 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3175 totlen += l; 3176 memcpy(buf, &uhci_ifcd, l); 3177 buf = (char *)buf + l; 3178 len -= l; 3179 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3180 totlen += l; 3181 memcpy(buf, &uhci_endpd, l); 3182 break; 3183 case UDESC_STRING: 3184 if (len == 0) 3185 break; 3186 *(u_int8_t *)buf = 0; 3187 totlen = 1; 3188 switch (value & 0xff) { 3189 case 1: /* Vendor */ 3190 totlen = uhci_str(buf, len, sc->sc_vendor); 3191 break; 3192 case 2: /* Product */ 3193 totlen = uhci_str(buf, len, "UHCI root hub"); 3194 break; 3195 } 3196 break; 3197 default: 3198 err = USBD_IOERROR; 3199 goto ret; 3200 } 3201 break; 3202 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3203 if (len > 0) { 3204 *(u_int8_t *)buf = 0; 3205 totlen = 1; 3206 } 3207 break; 3208 case C(UR_GET_STATUS, UT_READ_DEVICE): 3209 if (len > 1) { 3210 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3211 totlen = 2; 3212 } 3213 break; 3214 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3215 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3216 if (len > 1) { 3217 USETW(((usb_status_t *)buf)->wStatus, 0); 3218 totlen = 2; 3219 } 3220 break; 3221 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3222 if (value >= USB_MAX_DEVICES) { 3223 err = USBD_IOERROR; 3224 goto ret; 3225 } 3226 sc->sc_addr = value; 3227 break; 3228 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3229 if (value != 0 && value != 1) { 3230 err = USBD_IOERROR; 3231 goto ret; 3232 } 3233 sc->sc_conf = value; 3234 break; 3235 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3236 break; 3237 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3238 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3239 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3240 err = USBD_IOERROR; 3241 goto ret; 3242 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3243 break; 3244 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3245 break; 3246 /* Hub requests */ 3247 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3248 break; 3249 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3250 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3251 "port=%d feature=%d\n", 3252 index, value)); 3253 if (index == 1) 3254 port = UHCI_PORTSC1; 3255 else if (index == 2) 3256 port = UHCI_PORTSC2; 3257 else { 3258 err = USBD_IOERROR; 3259 goto ret; 3260 } 3261 switch(value) { 3262 case UHF_PORT_ENABLE: 3263 x = URWMASK(UREAD2(sc, port)); 3264 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3265 break; 3266 case UHF_PORT_SUSPEND: 3267 x = URWMASK(UREAD2(sc, port)); 3268 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3269 break; 3270 case UHF_PORT_RESET: 3271 x = URWMASK(UREAD2(sc, port)); 3272 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3273 break; 3274 case UHF_C_PORT_CONNECTION: 3275 x = URWMASK(UREAD2(sc, port)); 3276 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3277 break; 3278 case UHF_C_PORT_ENABLE: 3279 x = URWMASK(UREAD2(sc, port)); 3280 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3281 break; 3282 case UHF_C_PORT_OVER_CURRENT: 3283 x = URWMASK(UREAD2(sc, port)); 3284 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3285 break; 3286 case UHF_C_PORT_RESET: 3287 sc->sc_isreset = 0; 3288 err = USBD_NORMAL_COMPLETION; 3289 goto ret; 3290 case UHF_PORT_CONNECTION: 3291 case UHF_PORT_OVER_CURRENT: 3292 case UHF_PORT_POWER: 3293 case UHF_PORT_LOW_SPEED: 3294 case UHF_C_PORT_SUSPEND: 3295 default: 3296 err = USBD_IOERROR; 3297 goto ret; 3298 } 3299 break; 3300 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3301 if (index == 1) 3302 port = UHCI_PORTSC1; 3303 else if (index == 2) 3304 port = UHCI_PORTSC2; 3305 else { 3306 err = USBD_IOERROR; 3307 goto ret; 3308 } 3309 if (len > 0) { 3310 *(u_int8_t *)buf = 3311 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3312 UHCI_PORTSC_LS_SHIFT; 3313 totlen = 1; 3314 } 3315 break; 3316 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3317 if ((value & 0xff) != 0) { 3318 err = USBD_IOERROR; 3319 goto ret; 3320 } 3321 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3322 totlen = l; 3323 memcpy(buf, &uhci_hubd_piix, l); 3324 break; 3325 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3326 if (len != 4) { 3327 err = USBD_IOERROR; 3328 goto ret; 3329 } 3330 memset(buf, 0, len); 3331 totlen = len; 3332 break; 3333 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3334 if (index == 1) 3335 port = UHCI_PORTSC1; 3336 else if (index == 2) 3337 port = UHCI_PORTSC2; 3338 else { 3339 err = USBD_IOERROR; 3340 goto ret; 3341 } 3342 if (len != 4) { 3343 err = USBD_IOERROR; 3344 goto ret; 3345 } 3346 x = UREAD2(sc, port); 3347 status = change = 0; 3348 if (x & UHCI_PORTSC_CCS) 3349 status |= UPS_CURRENT_CONNECT_STATUS; 3350 if (x & UHCI_PORTSC_CSC) 3351 change |= UPS_C_CONNECT_STATUS; 3352 if (x & UHCI_PORTSC_PE) 3353 status |= UPS_PORT_ENABLED; 3354 if (x & UHCI_PORTSC_POEDC) 3355 change |= UPS_C_PORT_ENABLED; 3356 if (x & UHCI_PORTSC_OCI) 3357 status |= UPS_OVERCURRENT_INDICATOR; 3358 if (x & UHCI_PORTSC_OCIC) 3359 change |= UPS_C_OVERCURRENT_INDICATOR; 3360 if (x & UHCI_PORTSC_SUSP) 3361 status |= UPS_SUSPEND; 3362 if (x & UHCI_PORTSC_LSDA) 3363 status |= UPS_LOW_SPEED; 3364 status |= UPS_PORT_POWER; 3365 if (sc->sc_isreset) 3366 change |= UPS_C_PORT_RESET; 3367 USETW(ps.wPortStatus, status); 3368 USETW(ps.wPortChange, change); 3369 l = min(len, sizeof ps); 3370 memcpy(buf, &ps, l); 3371 totlen = l; 3372 break; 3373 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3374 err = USBD_IOERROR; 3375 goto ret; 3376 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3377 break; 3378 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3379 if (index == 1) 3380 port = UHCI_PORTSC1; 3381 else if (index == 2) 3382 port = UHCI_PORTSC2; 3383 else { 3384 err = USBD_IOERROR; 3385 goto ret; 3386 } 3387 switch(value) { 3388 case UHF_PORT_ENABLE: 3389 x = URWMASK(UREAD2(sc, port)); 3390 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3391 break; 3392 case UHF_PORT_SUSPEND: 3393 x = URWMASK(UREAD2(sc, port)); 3394 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3395 break; 3396 case UHF_PORT_RESET: 3397 err = uhci_portreset(sc, index); 3398 goto ret; 3399 case UHF_PORT_POWER: 3400 /* Pretend we turned on power */ 3401 err = USBD_NORMAL_COMPLETION; 3402 goto ret; 3403 case UHF_C_PORT_CONNECTION: 3404 case UHF_C_PORT_ENABLE: 3405 case UHF_C_PORT_OVER_CURRENT: 3406 case UHF_PORT_CONNECTION: 3407 case UHF_PORT_OVER_CURRENT: 3408 case UHF_PORT_LOW_SPEED: 3409 case UHF_C_PORT_SUSPEND: 3410 case UHF_C_PORT_RESET: 3411 default: 3412 err = USBD_IOERROR; 3413 goto ret; 3414 } 3415 break; 3416 default: 3417 err = USBD_IOERROR; 3418 goto ret; 3419 } 3420 xfer->actlen = totlen; 3421 err = USBD_NORMAL_COMPLETION; 3422 ret: 3423 xfer->status = err; 3424 s = splusb(); 3425 usb_transfer_complete(xfer); 3426 splx(s); 3427 return (USBD_IN_PROGRESS); 3428 } 3429 3430 /* Abort a root control request. */ 3431 void 3432 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3433 { 3434 /* Nothing to do, all transfers are synchronous. */ 3435 } 3436 3437 /* Close the root pipe. */ 3438 void 3439 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3440 { 3441 DPRINTF(("uhci_root_ctrl_close\n")); 3442 } 3443 3444 /* Abort a root interrupt request. */ 3445 void 3446 uhci_root_intr_abort(usbd_xfer_handle xfer) 3447 { 3448 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3449 3450 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3451 sc->sc_intr_xfer = NULL; 3452 3453 if (xfer->pipe->intrxfer == xfer) { 3454 DPRINTF(("uhci_root_intr_abort: remove\n")); 3455 xfer->pipe->intrxfer = 0; 3456 } 3457 xfer->status = USBD_CANCELLED; 3458 #ifdef DIAGNOSTIC 3459 UXFER(xfer)->iinfo.isdone = 1; 3460 #endif 3461 usb_transfer_complete(xfer); 3462 } 3463 3464 usbd_status 3465 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3466 { 3467 usbd_status err; 3468 3469 /* Insert last in queue. */ 3470 err = usb_insert_transfer(xfer); 3471 if (err) 3472 return (err); 3473 3474 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3475 * start first 3476 */ 3477 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3478 } 3479 3480 /* Start a transfer on the root interrupt pipe */ 3481 usbd_status 3482 uhci_root_intr_start(usbd_xfer_handle xfer) 3483 { 3484 usbd_pipe_handle pipe = xfer->pipe; 3485 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3486 unsigned int ival; 3487 3488 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3489 xfer, xfer->length, xfer->flags)); 3490 3491 if (sc->sc_dying) 3492 return (USBD_IOERROR); 3493 3494 /* XXX temporary variable needed to avoid gcc3 warning */ 3495 ival = xfer->pipe->endpoint->edesc->bInterval; 3496 sc->sc_ival = mstohz(ival); 3497 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3498 sc->sc_intr_xfer = xfer; 3499 return (USBD_IN_PROGRESS); 3500 } 3501 3502 /* Close the root interrupt pipe. */ 3503 void 3504 uhci_root_intr_close(usbd_pipe_handle pipe) 3505 { 3506 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3507 3508 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3509 sc->sc_intr_xfer = NULL; 3510 DPRINTF(("uhci_root_intr_close\n")); 3511 }
Cache object: fa457272faff2be62754b522001b2f2c
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