uhci.c revision 1.165
1 /* $NetBSD: uhci.c,v 1.165 2002/12/31 02:04:49 dsainty Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/data/usbspec.zip 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.165 2002/12/31 02:04:49 dsainty Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #if defined(DIAGNOSTIC) && defined(__i386__) 66 #include <machine/cpu.h> 67 #endif 68 #endif 69 #include <sys/proc.h> 70 #include <sys/queue.h> 71 72 #include <machine/bus.h> 73 #include <machine/endian.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdivar.h> 78 #include <dev/usb/usb_mem.h> 79 #include <dev/usb/usb_quirks.h> 80 81 #include <dev/usb/uhcireg.h> 82 #include <dev/usb/uhcivar.h> 83 84 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 85 /*#define UHCI_CTL_LOOP */ 86 87 #if defined(__FreeBSD__) 88 #include <machine/clock.h> 89 90 #define delay(d) DELAY(d) 91 #endif 92 93 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data strored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 uhci_soft_qh_t **qhs; 149 } intr; 150 /* Bulk pipe */ 151 struct { 152 uhci_soft_qh_t *sqh; 153 u_int length; 154 int isread; 155 } bulk; 156 /* Iso pipe */ 157 struct iso { 158 uhci_soft_td_t **stds; 159 int next, inuse; 160 } iso; 161 } u; 162 }; 163 164 Static void uhci_globalreset(uhci_softc_t *); 165 Static void uhci_reset(uhci_softc_t *); 166 Static void uhci_shutdown(void *v); 167 Static void uhci_power(int, void *); 168 Static usbd_status uhci_run(uhci_softc_t *, int run); 169 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 170 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 171 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 172 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 173 #if 0 174 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 175 uhci_intr_info_t *); 176 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 177 #endif 178 179 Static void uhci_free_std_chain(uhci_softc_t *, 180 uhci_soft_td_t *, uhci_soft_td_t *); 181 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 182 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 183 uhci_soft_td_t **, uhci_soft_td_t **); 184 Static void uhci_poll_hub(void *); 185 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 186 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 187 Static void uhci_idone(uhci_intr_info_t *); 188 189 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 190 191 Static void uhci_timeout(void *); 192 Static void uhci_timeout_task(void *); 193 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 194 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 197 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 199 Static int uhci_str(usb_string_descriptor_t *, int, char *); 200 Static void uhci_add_loop(uhci_softc_t *sc); 201 Static void uhci_rem_loop(uhci_softc_t *sc); 202 203 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 204 Static void uhci_device_isoc_enter(usbd_xfer_handle); 205 206 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 207 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 208 209 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 210 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 211 212 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 213 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 214 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 215 Static void uhci_device_ctrl_close(usbd_pipe_handle); 216 Static void uhci_device_ctrl_done(usbd_xfer_handle); 217 218 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 219 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 220 Static void uhci_device_intr_abort(usbd_xfer_handle); 221 Static void uhci_device_intr_close(usbd_pipe_handle); 222 Static void uhci_device_intr_done(usbd_xfer_handle); 223 224 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 225 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 226 Static void uhci_device_bulk_abort(usbd_xfer_handle); 227 Static void uhci_device_bulk_close(usbd_pipe_handle); 228 Static void uhci_device_bulk_done(usbd_xfer_handle); 229 230 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 231 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 232 Static void uhci_device_isoc_abort(usbd_xfer_handle); 233 Static void uhci_device_isoc_close(usbd_pipe_handle); 234 Static void uhci_device_isoc_done(usbd_xfer_handle); 235 236 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 237 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 238 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 239 Static void uhci_root_ctrl_close(usbd_pipe_handle); 240 Static void uhci_root_ctrl_done(usbd_xfer_handle); 241 242 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 243 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 244 Static void uhci_root_intr_abort(usbd_xfer_handle); 245 Static void uhci_root_intr_close(usbd_pipe_handle); 246 Static void uhci_root_intr_done(usbd_xfer_handle); 247 248 Static usbd_status uhci_open(usbd_pipe_handle); 249 Static void uhci_poll(struct usbd_bus *); 250 Static void uhci_softintr(void *); 251 252 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 253 254 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 255 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 257 struct uhci_pipe *pipe, int ival); 258 259 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 260 Static void uhci_noop(usbd_pipe_handle pipe); 261 262 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 263 uhci_soft_qh_t *); 264 265 #ifdef UHCI_DEBUG 266 Static void uhci_dump_all(uhci_softc_t *); 267 Static void uhci_dumpregs(uhci_softc_t *); 268 Static void uhci_dump_qhs(uhci_soft_qh_t *); 269 Static void uhci_dump_qh(uhci_soft_qh_t *); 270 Static void uhci_dump_tds(uhci_soft_td_t *); 271 Static void uhci_dump_td(uhci_soft_td_t *); 272 Static void uhci_dump_ii(uhci_intr_info_t *ii); 273 void uhci_dump(void); 274 #endif 275 276 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 277 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 278 #define UWRITE1(sc, r, x) \ 279 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 280 } while (/*CONSTCOND*/0) 281 #define UWRITE2(sc, r, x) \ 282 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 283 } while (/*CONSTCOND*/0) 284 #define UWRITE4(sc, r, x) \ 285 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 286 } while (/*CONSTCOND*/0) 287 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 288 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 289 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 290 291 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 292 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 293 294 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 295 296 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 297 298 #define UHCI_INTR_ENDPT 1 299 300 struct usbd_bus_methods uhci_bus_methods = { 301 uhci_open, 302 uhci_softintr, 303 uhci_poll, 304 uhci_allocm, 305 uhci_freem, 306 uhci_allocx, 307 uhci_freex, 308 }; 309 310 struct usbd_pipe_methods uhci_root_ctrl_methods = { 311 uhci_root_ctrl_transfer, 312 uhci_root_ctrl_start, 313 uhci_root_ctrl_abort, 314 uhci_root_ctrl_close, 315 uhci_noop, 316 uhci_root_ctrl_done, 317 }; 318 319 struct usbd_pipe_methods uhci_root_intr_methods = { 320 uhci_root_intr_transfer, 321 uhci_root_intr_start, 322 uhci_root_intr_abort, 323 uhci_root_intr_close, 324 uhci_noop, 325 uhci_root_intr_done, 326 }; 327 328 struct usbd_pipe_methods uhci_device_ctrl_methods = { 329 uhci_device_ctrl_transfer, 330 uhci_device_ctrl_start, 331 uhci_device_ctrl_abort, 332 uhci_device_ctrl_close, 333 uhci_noop, 334 uhci_device_ctrl_done, 335 }; 336 337 struct usbd_pipe_methods uhci_device_intr_methods = { 338 uhci_device_intr_transfer, 339 uhci_device_intr_start, 340 uhci_device_intr_abort, 341 uhci_device_intr_close, 342 uhci_device_clear_toggle, 343 uhci_device_intr_done, 344 }; 345 346 struct usbd_pipe_methods uhci_device_bulk_methods = { 347 uhci_device_bulk_transfer, 348 uhci_device_bulk_start, 349 uhci_device_bulk_abort, 350 uhci_device_bulk_close, 351 uhci_device_clear_toggle, 352 uhci_device_bulk_done, 353 }; 354 355 struct usbd_pipe_methods uhci_device_isoc_methods = { 356 uhci_device_isoc_transfer, 357 uhci_device_isoc_start, 358 uhci_device_isoc_abort, 359 uhci_device_isoc_close, 360 uhci_noop, 361 uhci_device_isoc_done, 362 }; 363 364 #define uhci_add_intr_info(sc, ii) \ 365 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 366 #define uhci_del_intr_info(ii) \ 367 LIST_REMOVE((ii), list) 368 369 Static __inline__ uhci_soft_qh_t * 370 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 371 { 372 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 373 374 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 375 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 376 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 377 printf("uhci_find_prev_qh: QH not found\n"); 378 return (NULL); 379 } 380 #endif 381 } 382 return (pqh); 383 } 384 385 void 386 uhci_globalreset(uhci_softc_t *sc) 387 { 388 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 389 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 390 UHCICMD(sc, 0); /* do nothing */ 391 } 392 393 usbd_status 394 uhci_init(uhci_softc_t *sc) 395 { 396 usbd_status err; 397 int i, j; 398 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 399 uhci_soft_td_t *std; 400 401 DPRINTFN(1,("uhci_init: start\n")); 402 403 #ifdef UHCI_DEBUG 404 thesc = sc; 405 406 if (uhcidebug > 2) 407 uhci_dumpregs(sc); 408 #endif 409 410 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 411 uhci_globalreset(sc); /* reset the controller */ 412 uhci_reset(sc); 413 414 /* Allocate and initialize real frame array. */ 415 err = usb_allocmem(&sc->sc_bus, 416 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 417 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 418 if (err) 419 return (err); 420 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 421 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 422 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 423 424 /* 425 * Allocate a TD, inactive, that hangs from the last QH. 426 * This is to avoid a bug in the PIIX that makes it run berserk 427 * otherwise. 428 */ 429 std = uhci_alloc_std(sc); 430 if (std == NULL) 431 return (USBD_NOMEM); 432 std->link.std = NULL; 433 std->td.td_link = htole32(UHCI_PTR_T); 434 std->td.td_status = htole32(0); /* inactive */ 435 std->td.td_token = htole32(0); 436 std->td.td_buffer = htole32(0); 437 438 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 439 lsqh = uhci_alloc_sqh(sc); 440 if (lsqh == NULL) 441 return (USBD_NOMEM); 442 lsqh->hlink = NULL; 443 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 444 lsqh->elink = std; 445 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 446 sc->sc_last_qh = lsqh; 447 448 /* Allocate the dummy QH where bulk traffic will be queued. */ 449 bsqh = uhci_alloc_sqh(sc); 450 if (bsqh == NULL) 451 return (USBD_NOMEM); 452 bsqh->hlink = lsqh; 453 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 454 bsqh->elink = NULL; 455 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 456 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 457 458 /* Allocate dummy QH where high speed control traffic will be queued. */ 459 chsqh = uhci_alloc_sqh(sc); 460 if (chsqh == NULL) 461 return (USBD_NOMEM); 462 chsqh->hlink = bsqh; 463 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 464 chsqh->elink = NULL; 465 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 466 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 467 468 /* Allocate dummy QH where control traffic will be queued. */ 469 clsqh = uhci_alloc_sqh(sc); 470 if (clsqh == NULL) 471 return (USBD_NOMEM); 472 clsqh->hlink = bsqh; 473 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 474 clsqh->elink = NULL; 475 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 476 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 477 478 /* 479 * Make all (virtual) frame list pointers point to the interrupt 480 * queue heads and the interrupt queue heads at the control 481 * queue head and point the physical frame list to the virtual. 482 */ 483 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 484 std = uhci_alloc_std(sc); 485 sqh = uhci_alloc_sqh(sc); 486 if (std == NULL || sqh == NULL) 487 return (USBD_NOMEM); 488 std->link.sqh = sqh; 489 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 490 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 491 std->td.td_token = htole32(0); 492 std->td.td_buffer = htole32(0); 493 sqh->hlink = clsqh; 494 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 495 sqh->elink = NULL; 496 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 497 sc->sc_vframes[i].htd = std; 498 sc->sc_vframes[i].etd = std; 499 sc->sc_vframes[i].hqh = sqh; 500 sc->sc_vframes[i].eqh = sqh; 501 for (j = i; 502 j < UHCI_FRAMELIST_COUNT; 503 j += UHCI_VFRAMELIST_COUNT) 504 sc->sc_pframes[j] = htole32(std->physaddr); 505 } 506 507 LIST_INIT(&sc->sc_intrhead); 508 509 SIMPLEQ_INIT(&sc->sc_free_xfers); 510 511 usb_callout_init(sc->sc_poll_handle); 512 513 /* Set up the bus struct. */ 514 sc->sc_bus.methods = &uhci_bus_methods; 515 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 516 517 #if defined(__NetBSD__) || defined(__OpenBSD__) 518 sc->sc_suspend = PWR_RESUME; 519 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 520 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 521 #endif 522 523 DPRINTFN(1,("uhci_init: enabling\n")); 524 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 525 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 526 527 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 528 529 return (uhci_run(sc, 1)); /* and here we go... */ 530 } 531 532 #if defined(__NetBSD__) || defined(__OpenBSD__) 533 int 534 uhci_activate(device_ptr_t self, enum devact act) 535 { 536 struct uhci_softc *sc = (struct uhci_softc *)self; 537 int rv = 0; 538 539 switch (act) { 540 case DVACT_ACTIVATE: 541 return (EOPNOTSUPP); 542 break; 543 544 case DVACT_DEACTIVATE: 545 if (sc->sc_child != NULL) 546 rv = config_deactivate(sc->sc_child); 547 break; 548 } 549 return (rv); 550 } 551 552 int 553 uhci_detach(struct uhci_softc *sc, int flags) 554 { 555 usbd_xfer_handle xfer; 556 int rv = 0; 557 558 if (sc->sc_child != NULL) 559 rv = config_detach(sc->sc_child, flags); 560 561 if (rv != 0) 562 return (rv); 563 564 #if defined(__NetBSD__) || defined(__OpenBSD__) 565 powerhook_disestablish(sc->sc_powerhook); 566 shutdownhook_disestablish(sc->sc_shutdownhook); 567 #endif 568 569 /* Free all xfers associated with this HC. */ 570 for (;;) { 571 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 572 if (xfer == NULL) 573 break; 574 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 575 free(xfer, M_USB); 576 } 577 578 /* XXX free other data structures XXX */ 579 580 return (rv); 581 } 582 #endif 583 584 usbd_status 585 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 586 { 587 struct uhci_softc *sc = (struct uhci_softc *)bus; 588 u_int32_t n; 589 590 /* 591 * XXX 592 * Since we are allocating a buffer we can assume that we will 593 * need TDs for it. Since we don't want to allocate those from 594 * an interrupt context, we allocate them here and free them again. 595 * This is no guarantee that we'll get the TDs next time... 596 */ 597 n = size / 8; 598 if (n > 16) { 599 u_int32_t i; 600 uhci_soft_td_t **stds; 601 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 602 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 603 M_WAITOK|M_ZERO); 604 for(i=0; i < n; i++) 605 stds[i] = uhci_alloc_std(sc); 606 for(i=0; i < n; i++) 607 if (stds[i] != NULL) 608 uhci_free_std(sc, stds[i]); 609 free(stds, M_TEMP); 610 } 611 612 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 613 } 614 615 void 616 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 617 { 618 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 619 } 620 621 usbd_xfer_handle 622 uhci_allocx(struct usbd_bus *bus) 623 { 624 struct uhci_softc *sc = (struct uhci_softc *)bus; 625 usbd_xfer_handle xfer; 626 627 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 628 if (xfer != NULL) { 629 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 630 #ifdef DIAGNOSTIC 631 if (xfer->busy_free != XFER_FREE) { 632 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 633 xfer->busy_free); 634 } 635 #endif 636 } else { 637 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 638 } 639 if (xfer != NULL) { 640 memset(xfer, 0, sizeof (struct uhci_xfer)); 641 UXFER(xfer)->iinfo.sc = sc; 642 #ifdef DIAGNOSTIC 643 UXFER(xfer)->iinfo.isdone = 1; 644 xfer->busy_free = XFER_BUSY; 645 #endif 646 } 647 return (xfer); 648 } 649 650 void 651 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 652 { 653 struct uhci_softc *sc = (struct uhci_softc *)bus; 654 655 #ifdef DIAGNOSTIC 656 if (xfer->busy_free != XFER_BUSY) { 657 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 658 xfer->busy_free); 659 return; 660 } 661 xfer->busy_free = XFER_FREE; 662 if (!UXFER(xfer)->iinfo.isdone) { 663 printf("uhci_freex: !isdone\n"); 664 return; 665 } 666 #endif 667 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 668 } 669 670 /* 671 * Shut down the controller when the system is going down. 672 */ 673 void 674 uhci_shutdown(void *v) 675 { 676 uhci_softc_t *sc = v; 677 678 DPRINTF(("uhci_shutdown: stopping the HC\n")); 679 uhci_run(sc, 0); /* stop the controller */ 680 } 681 682 /* 683 * Handle suspend/resume. 684 * 685 * We need to switch to polling mode here, because this routine is 686 * called from an interrupt context. This is all right since we 687 * are almost suspended anyway. 688 */ 689 void 690 uhci_power(int why, void *v) 691 { 692 uhci_softc_t *sc = v; 693 int cmd; 694 int s; 695 696 s = splhardusb(); 697 cmd = UREAD2(sc, UHCI_CMD); 698 699 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 700 sc, why, sc->sc_suspend, cmd)); 701 702 switch (why) { 703 case PWR_SUSPEND: 704 case PWR_STANDBY: 705 #ifdef UHCI_DEBUG 706 if (uhcidebug > 2) 707 uhci_dumpregs(sc); 708 #endif 709 if (sc->sc_intr_xfer != NULL) 710 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 711 sc->sc_intr_xfer); 712 sc->sc_bus.use_polling++; 713 uhci_run(sc, 0); /* stop the controller */ 714 715 /* save some state if BIOS doesn't */ 716 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 717 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 718 719 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 720 721 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 722 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 723 sc->sc_suspend = why; 724 sc->sc_bus.use_polling--; 725 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 726 break; 727 case PWR_RESUME: 728 #ifdef DIAGNOSTIC 729 if (sc->sc_suspend == PWR_RESUME) 730 printf("uhci_power: weird, resume without suspend.\n"); 731 #endif 732 sc->sc_bus.use_polling++; 733 sc->sc_suspend = why; 734 if (cmd & UHCI_CMD_RS) 735 uhci_run(sc, 0); /* in case BIOS has started it */ 736 737 /* restore saved state */ 738 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 739 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 740 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 741 742 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 743 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 744 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 745 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 746 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 747 uhci_run(sc, 1); /* and start traffic again */ 748 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 749 sc->sc_bus.use_polling--; 750 if (sc->sc_intr_xfer != NULL) 751 usb_callout(sc->sc_poll_handle, sc->sc_ival, 752 uhci_poll_hub, sc->sc_intr_xfer); 753 #ifdef UHCI_DEBUG 754 if (uhcidebug > 2) 755 uhci_dumpregs(sc); 756 #endif 757 break; 758 case PWR_SOFTSUSPEND: 759 case PWR_SOFTSTANDBY: 760 case PWR_SOFTRESUME: 761 break; 762 } 763 splx(s); 764 } 765 766 #ifdef UHCI_DEBUG 767 Static void 768 uhci_dumpregs(uhci_softc_t *sc) 769 { 770 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 771 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 772 USBDEVNAME(sc->sc_bus.bdev), 773 UREAD2(sc, UHCI_CMD), 774 UREAD2(sc, UHCI_STS), 775 UREAD2(sc, UHCI_INTR), 776 UREAD2(sc, UHCI_FRNUM), 777 UREAD4(sc, UHCI_FLBASEADDR), 778 UREAD1(sc, UHCI_SOF), 779 UREAD2(sc, UHCI_PORTSC1), 780 UREAD2(sc, UHCI_PORTSC2))); 781 } 782 783 void 784 uhci_dump_td(uhci_soft_td_t *p) 785 { 786 char sbuf[128], sbuf2[128]; 787 788 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 789 "token=0x%08lx buffer=0x%08lx\n", 790 p, (long)p->physaddr, 791 (long)le32toh(p->td.td_link), 792 (long)le32toh(p->td.td_status), 793 (long)le32toh(p->td.td_token), 794 (long)le32toh(p->td.td_buffer))); 795 796 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 797 sbuf, sizeof(sbuf)); 798 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 799 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 800 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 801 sbuf2, sizeof(sbuf2)); 802 803 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 804 "D=%d,maxlen=%d\n", sbuf, sbuf2, 805 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 806 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 807 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 808 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 809 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 810 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 811 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 812 } 813 814 void 815 uhci_dump_qh(uhci_soft_qh_t *sqh) 816 { 817 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 818 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 819 le32toh(sqh->qh.qh_elink))); 820 } 821 822 823 #if 1 824 void 825 uhci_dump(void) 826 { 827 uhci_dump_all(thesc); 828 } 829 #endif 830 831 void 832 uhci_dump_all(uhci_softc_t *sc) 833 { 834 uhci_dumpregs(sc); 835 printf("intrs=%d\n", sc->sc_bus.no_intrs); 836 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 837 uhci_dump_qh(sc->sc_lctl_start); 838 } 839 840 841 void 842 uhci_dump_qhs(uhci_soft_qh_t *sqh) 843 { 844 uhci_dump_qh(sqh); 845 846 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 847 * Traverses sideways first, then down. 848 * 849 * QH1 850 * QH2 851 * No QH 852 * TD2.1 853 * TD2.2 854 * TD1.1 855 * etc. 856 * 857 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 858 */ 859 860 861 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 862 uhci_dump_qhs(sqh->hlink); 863 else 864 DPRINTF(("No QH\n")); 865 866 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 867 uhci_dump_tds(sqh->elink); 868 else 869 DPRINTF(("No TD\n")); 870 } 871 872 void 873 uhci_dump_tds(uhci_soft_td_t *std) 874 { 875 uhci_soft_td_t *td; 876 877 for(td = std; td != NULL; td = td->link.std) { 878 uhci_dump_td(td); 879 880 /* Check whether the link pointer in this TD marks 881 * the link pointer as end of queue. This avoids 882 * printing the free list in case the queue/TD has 883 * already been moved there (seatbelt). 884 */ 885 if (le32toh(td->td.td_link) & UHCI_PTR_T || 886 le32toh(td->td.td_link) == 0) 887 break; 888 } 889 } 890 891 Static void 892 uhci_dump_ii(uhci_intr_info_t *ii) 893 { 894 usbd_pipe_handle pipe; 895 usb_endpoint_descriptor_t *ed; 896 usbd_device_handle dev; 897 898 #ifdef DIAGNOSTIC 899 #define DONE ii->isdone 900 #else 901 #define DONE 0 902 #endif 903 if (ii == NULL) { 904 printf("ii NULL\n"); 905 return; 906 } 907 if (ii->xfer == NULL) { 908 printf("ii %p: done=%d xfer=NULL\n", 909 ii, DONE); 910 return; 911 } 912 pipe = ii->xfer->pipe; 913 if (pipe == NULL) { 914 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 915 ii, DONE, ii->xfer); 916 return; 917 } 918 if (pipe->endpoint == NULL) { 919 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 920 ii, DONE, ii->xfer, pipe); 921 return; 922 } 923 if (pipe->device == NULL) { 924 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 925 ii, DONE, ii->xfer, pipe); 926 return; 927 } 928 ed = pipe->endpoint->edesc; 929 dev = pipe->device; 930 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", 931 ii, DONE, ii->xfer, dev, 932 UGETW(dev->ddesc.idVendor), 933 UGETW(dev->ddesc.idProduct), 934 dev->address, pipe, 935 ed->bEndpointAddress, ed->bmAttributes); 936 #undef DONE 937 } 938 939 void uhci_dump_iis(struct uhci_softc *sc); 940 void 941 uhci_dump_iis(struct uhci_softc *sc) 942 { 943 uhci_intr_info_t *ii; 944 945 printf("intr_info list:\n"); 946 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 947 uhci_dump_ii(ii); 948 } 949 950 void iidump(void); 951 void iidump(void) { uhci_dump_iis(thesc); } 952 953 #endif 954 955 /* 956 * This routine is executed periodically and simulates interrupts 957 * from the root controller interrupt pipe for port status change. 958 */ 959 void 960 uhci_poll_hub(void *addr) 961 { 962 usbd_xfer_handle xfer = addr; 963 usbd_pipe_handle pipe = xfer->pipe; 964 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 965 int s; 966 u_char *p; 967 968 DPRINTFN(20, ("uhci_poll_hub\n")); 969 970 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 971 972 p = KERNADDR(&xfer->dmabuf, 0); 973 p[0] = 0; 974 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 975 p[0] |= 1<<1; 976 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 977 p[0] |= 1<<2; 978 if (p[0] == 0) 979 /* No change, try again in a while */ 980 return; 981 982 xfer->actlen = 1; 983 xfer->status = USBD_NORMAL_COMPLETION; 984 s = splusb(); 985 xfer->device->bus->intr_context++; 986 usb_transfer_complete(xfer); 987 xfer->device->bus->intr_context--; 988 splx(s); 989 } 990 991 void 992 uhci_root_intr_done(usbd_xfer_handle xfer) 993 { 994 } 995 996 void 997 uhci_root_ctrl_done(usbd_xfer_handle xfer) 998 { 999 } 1000 1001 /* 1002 * Let the last QH loop back to the high speed control transfer QH. 1003 * This is what intel calls "bandwidth reclamation" and improves 1004 * USB performance a lot for some devices. 1005 * If we are already looping, just count it. 1006 */ 1007 void 1008 uhci_add_loop(uhci_softc_t *sc) { 1009 #ifdef UHCI_DEBUG 1010 if (uhcinoloop) 1011 return; 1012 #endif 1013 if (++sc->sc_loops == 1) { 1014 DPRINTFN(5,("uhci_start_loop: add\n")); 1015 /* Note, we don't loop back the soft pointer. */ 1016 sc->sc_last_qh->qh.qh_hlink = 1017 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1018 } 1019 } 1020 1021 void 1022 uhci_rem_loop(uhci_softc_t *sc) { 1023 #ifdef UHCI_DEBUG 1024 if (uhcinoloop) 1025 return; 1026 #endif 1027 if (--sc->sc_loops == 0) { 1028 DPRINTFN(5,("uhci_end_loop: remove\n")); 1029 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1030 } 1031 } 1032 1033 /* Add high speed control QH, called at splusb(). */ 1034 void 1035 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1036 { 1037 uhci_soft_qh_t *eqh; 1038 1039 SPLUSBCHECK; 1040 1041 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1042 eqh = sc->sc_hctl_end; 1043 sqh->hlink = eqh->hlink; 1044 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1045 eqh->hlink = sqh; 1046 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1047 sc->sc_hctl_end = sqh; 1048 #ifdef UHCI_CTL_LOOP 1049 uhci_add_loop(sc); 1050 #endif 1051 } 1052 1053 /* Remove high speed control QH, called at splusb(). */ 1054 void 1055 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1056 { 1057 uhci_soft_qh_t *pqh; 1058 1059 SPLUSBCHECK; 1060 1061 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1062 #ifdef UHCI_CTL_LOOP 1063 uhci_rem_loop(sc); 1064 #endif 1065 /* 1066 * The T bit should be set in the elink of the QH so that the HC 1067 * doesn't follow the pointer. This condition may fail if the 1068 * the transferred packet was short so that the QH still points 1069 * at the last used TD. 1070 * In this case we set the T bit and wait a little for the HC 1071 * to stop looking at the TD. 1072 */ 1073 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1074 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1075 delay(UHCI_QH_REMOVE_DELAY); 1076 } 1077 1078 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1079 pqh->hlink = sqh->hlink; 1080 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1081 delay(UHCI_QH_REMOVE_DELAY); 1082 if (sc->sc_hctl_end == sqh) 1083 sc->sc_hctl_end = pqh; 1084 } 1085 1086 /* Add low speed control QH, called at splusb(). */ 1087 void 1088 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1089 { 1090 uhci_soft_qh_t *eqh; 1091 1092 SPLUSBCHECK; 1093 1094 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1095 eqh = sc->sc_lctl_end; 1096 sqh->hlink = eqh->hlink; 1097 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1098 eqh->hlink = sqh; 1099 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1100 sc->sc_lctl_end = sqh; 1101 } 1102 1103 /* Remove low speed control QH, called at splusb(). */ 1104 void 1105 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1106 { 1107 uhci_soft_qh_t *pqh; 1108 1109 SPLUSBCHECK; 1110 1111 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1112 /* See comment in uhci_remove_hs_ctrl() */ 1113 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1114 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1115 delay(UHCI_QH_REMOVE_DELAY); 1116 } 1117 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1118 pqh->hlink = sqh->hlink; 1119 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1120 delay(UHCI_QH_REMOVE_DELAY); 1121 if (sc->sc_lctl_end == sqh) 1122 sc->sc_lctl_end = pqh; 1123 } 1124 1125 /* Add bulk QH, called at splusb(). */ 1126 void 1127 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1128 { 1129 uhci_soft_qh_t *eqh; 1130 1131 SPLUSBCHECK; 1132 1133 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1134 eqh = sc->sc_bulk_end; 1135 sqh->hlink = eqh->hlink; 1136 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1137 eqh->hlink = sqh; 1138 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1139 sc->sc_bulk_end = sqh; 1140 uhci_add_loop(sc); 1141 } 1142 1143 /* Remove bulk QH, called at splusb(). */ 1144 void 1145 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1146 { 1147 uhci_soft_qh_t *pqh; 1148 1149 SPLUSBCHECK; 1150 1151 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1152 uhci_rem_loop(sc); 1153 /* See comment in uhci_remove_hs_ctrl() */ 1154 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1155 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1156 delay(UHCI_QH_REMOVE_DELAY); 1157 } 1158 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1159 pqh->hlink = sqh->hlink; 1160 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1161 delay(UHCI_QH_REMOVE_DELAY); 1162 if (sc->sc_bulk_end == sqh) 1163 sc->sc_bulk_end = pqh; 1164 } 1165 1166 Static int uhci_intr1(uhci_softc_t *); 1167 1168 int 1169 uhci_intr(void *arg) 1170 { 1171 uhci_softc_t *sc = arg; 1172 1173 if (sc->sc_dying) 1174 return (0); 1175 1176 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1177 if (sc->sc_bus.use_polling) { 1178 #ifdef DIAGNOSTIC 1179 printf("uhci_intr: ignored interrupt while polling\n"); 1180 #endif 1181 return (0); 1182 } 1183 return (uhci_intr1(sc)); 1184 } 1185 1186 int 1187 uhci_intr1(uhci_softc_t *sc) 1188 { 1189 int status; 1190 int ack; 1191 1192 #ifdef UHCI_DEBUG 1193 if (uhcidebug > 15) { 1194 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1195 uhci_dumpregs(sc); 1196 } 1197 #endif 1198 1199 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1200 if (status == 0) /* The interrupt was not for us. */ 1201 return (0); 1202 1203 if (sc->sc_suspend != PWR_RESUME) { 1204 printf("%s: interrupt while not operating ignored\n", 1205 USBDEVNAME(sc->sc_bus.bdev)); 1206 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1207 return (0); 1208 } 1209 1210 ack = 0; 1211 if (status & UHCI_STS_USBINT) 1212 ack |= UHCI_STS_USBINT; 1213 if (status & UHCI_STS_USBEI) 1214 ack |= UHCI_STS_USBEI; 1215 if (status & UHCI_STS_RD) { 1216 ack |= UHCI_STS_RD; 1217 #ifdef UHCI_DEBUG 1218 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1219 #endif 1220 } 1221 if (status & UHCI_STS_HSE) { 1222 ack |= UHCI_STS_HSE; 1223 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1224 } 1225 if (status & UHCI_STS_HCPE) { 1226 ack |= UHCI_STS_HCPE; 1227 printf("%s: host controller process error\n", 1228 USBDEVNAME(sc->sc_bus.bdev)); 1229 } 1230 if (status & UHCI_STS_HCH) { 1231 /* no acknowledge needed */ 1232 if (!sc->sc_dying) { 1233 printf("%s: host controller halted\n", 1234 USBDEVNAME(sc->sc_bus.bdev)); 1235 #ifdef UHCI_DEBUG 1236 uhci_dump_all(sc); 1237 #endif 1238 } 1239 sc->sc_dying = 1; 1240 } 1241 1242 if (!ack) 1243 return (0); /* nothing to acknowledge */ 1244 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1245 1246 sc->sc_bus.no_intrs++; 1247 usb_schedsoftintr(&sc->sc_bus); 1248 1249 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1250 1251 return (1); 1252 } 1253 1254 void 1255 uhci_softintr(void *v) 1256 { 1257 uhci_softc_t *sc = v; 1258 uhci_intr_info_t *ii; 1259 1260 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1261 sc->sc_bus.intr_context)); 1262 1263 sc->sc_bus.intr_context++; 1264 1265 /* 1266 * Interrupts on UHCI really suck. When the host controller 1267 * interrupts because a transfer is completed there is no 1268 * way of knowing which transfer it was. You can scan down 1269 * the TDs and QHs of the previous frame to limit the search, 1270 * but that assumes that the interrupt was not delayed by more 1271 * than 1 ms, which may not always be true (e.g. after debug 1272 * output on a slow console). 1273 * We scan all interrupt descriptors to see if any have 1274 * completed. 1275 */ 1276 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1277 uhci_check_intr(sc, ii); 1278 1279 #ifdef USB_USE_SOFTINTR 1280 if (sc->sc_softwake) { 1281 sc->sc_softwake = 0; 1282 wakeup(&sc->sc_softwake); 1283 } 1284 #endif /* USB_USE_SOFTINTR */ 1285 1286 sc->sc_bus.intr_context--; 1287 } 1288 1289 /* Check for an interrupt. */ 1290 void 1291 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1292 { 1293 uhci_soft_td_t *std, *lstd; 1294 u_int32_t status; 1295 1296 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1297 #ifdef DIAGNOSTIC 1298 if (ii == NULL) { 1299 printf("uhci_check_intr: no ii? %p\n", ii); 1300 return; 1301 } 1302 #endif 1303 if (ii->xfer->status == USBD_CANCELLED || 1304 ii->xfer->status == USBD_TIMEOUT) { 1305 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1306 return; 1307 } 1308 1309 if (ii->stdstart == NULL) 1310 return; 1311 lstd = ii->stdend; 1312 #ifdef DIAGNOSTIC 1313 if (lstd == NULL) { 1314 printf("uhci_check_intr: std==0\n"); 1315 return; 1316 } 1317 #endif 1318 /* 1319 * If the last TD is still active we need to check whether there 1320 * is a an error somewhere in the middle, or whether there was a 1321 * short packet (SPD and not ACTIVE). 1322 */ 1323 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1324 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1325 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1326 status = le32toh(std->td.td_status); 1327 /* If there's an active TD the xfer isn't done. */ 1328 if (status & UHCI_TD_ACTIVE) 1329 break; 1330 /* Any kind of error makes the xfer done. */ 1331 if (status & UHCI_TD_STALLED) 1332 goto done; 1333 /* We want short packets, and it is short: it's done */ 1334 if ((status & UHCI_TD_SPD) && 1335 UHCI_TD_GET_ACTLEN(status) < 1336 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1337 goto done; 1338 } 1339 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1340 ii, ii->stdstart)); 1341 return; 1342 } 1343 done: 1344 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1345 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1346 uhci_idone(ii); 1347 } 1348 1349 /* Called at splusb() */ 1350 void 1351 uhci_idone(uhci_intr_info_t *ii) 1352 { 1353 usbd_xfer_handle xfer = ii->xfer; 1354 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1355 uhci_soft_td_t *std; 1356 u_int32_t status = 0, nstatus; 1357 int actlen; 1358 1359 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1360 #ifdef DIAGNOSTIC 1361 { 1362 int s = splhigh(); 1363 if (ii->isdone) { 1364 splx(s); 1365 #ifdef UHCI_DEBUG 1366 printf("uhci_idone: ii is done!\n "); 1367 uhci_dump_ii(ii); 1368 #else 1369 printf("uhci_idone: ii=%p is done!\n", ii); 1370 #endif 1371 return; 1372 } 1373 ii->isdone = 1; 1374 splx(s); 1375 } 1376 #endif 1377 1378 if (xfer->nframes != 0) { 1379 /* Isoc transfer, do things differently. */ 1380 uhci_soft_td_t **stds = upipe->u.iso.stds; 1381 int i, n, nframes, len; 1382 1383 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1384 1385 nframes = xfer->nframes; 1386 actlen = 0; 1387 n = UXFER(xfer)->curframe; 1388 for (i = 0; i < nframes; i++) { 1389 std = stds[n]; 1390 #ifdef UHCI_DEBUG 1391 if (uhcidebug > 5) { 1392 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1393 uhci_dump_td(std); 1394 } 1395 #endif 1396 if (++n >= UHCI_VFRAMELIST_COUNT) 1397 n = 0; 1398 status = le32toh(std->td.td_status); 1399 len = UHCI_TD_GET_ACTLEN(status); 1400 xfer->frlengths[i] = len; 1401 actlen += len; 1402 } 1403 upipe->u.iso.inuse -= nframes; 1404 xfer->actlen = actlen; 1405 xfer->status = USBD_NORMAL_COMPLETION; 1406 goto end; 1407 } 1408 1409 #ifdef UHCI_DEBUG 1410 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1411 ii, xfer, upipe)); 1412 if (uhcidebug > 10) 1413 uhci_dump_tds(ii->stdstart); 1414 #endif 1415 1416 /* The transfer is done, compute actual length and status. */ 1417 actlen = 0; 1418 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1419 nstatus = le32toh(std->td.td_status); 1420 if (nstatus & UHCI_TD_ACTIVE) 1421 break; 1422 1423 status = nstatus; 1424 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1425 UHCI_TD_PID_SETUP) 1426 actlen += UHCI_TD_GET_ACTLEN(status); 1427 } 1428 /* If there are left over TDs we need to update the toggle. */ 1429 if (std != NULL) 1430 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1431 1432 status &= UHCI_TD_ERROR; 1433 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1434 actlen, status)); 1435 xfer->actlen = actlen; 1436 if (status != 0) { 1437 #ifdef UHCI_DEBUG 1438 char sbuf[128]; 1439 1440 bitmask_snprintf((u_int32_t)status, 1441 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1442 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1443 sbuf, sizeof(sbuf)); 1444 1445 DPRINTFN((status == UHCI_TD_STALLED)*10, 1446 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1447 "status 0x%s\n", 1448 xfer->pipe->device->address, 1449 xfer->pipe->endpoint->edesc->bEndpointAddress, 1450 sbuf)); 1451 #endif 1452 1453 if (status == UHCI_TD_STALLED) 1454 xfer->status = USBD_STALLED; 1455 else 1456 xfer->status = USBD_IOERROR; /* more info XXX */ 1457 } else { 1458 xfer->status = USBD_NORMAL_COMPLETION; 1459 } 1460 1461 end: 1462 usb_transfer_complete(xfer); 1463 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1464 } 1465 1466 /* 1467 * Called when a request does not complete. 1468 */ 1469 void 1470 uhci_timeout(void *addr) 1471 { 1472 uhci_intr_info_t *ii = addr; 1473 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1474 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1475 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1476 1477 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1478 1479 if (sc->sc_dying) { 1480 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1481 return; 1482 } 1483 1484 /* Execute the abort in a process context. */ 1485 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1486 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1487 } 1488 1489 void 1490 uhci_timeout_task(void *addr) 1491 { 1492 usbd_xfer_handle xfer = addr; 1493 int s; 1494 1495 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1496 1497 s = splusb(); 1498 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1499 splx(s); 1500 } 1501 1502 /* 1503 * Wait here until controller claims to have an interrupt. 1504 * Then call uhci_intr and return. Use timeout to avoid waiting 1505 * too long. 1506 * Only used during boot when interrupts are not enabled yet. 1507 */ 1508 void 1509 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1510 { 1511 int timo = xfer->timeout; 1512 uhci_intr_info_t *ii; 1513 1514 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1515 1516 xfer->status = USBD_IN_PROGRESS; 1517 for (; timo >= 0; timo--) { 1518 usb_delay_ms(&sc->sc_bus, 1); 1519 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1520 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1521 uhci_intr1(sc); 1522 if (xfer->status != USBD_IN_PROGRESS) 1523 return; 1524 } 1525 } 1526 1527 /* Timeout */ 1528 DPRINTF(("uhci_waitintr: timeout\n")); 1529 for (ii = LIST_FIRST(&sc->sc_intrhead); 1530 ii != NULL && ii->xfer != xfer; 1531 ii = LIST_NEXT(ii, list)) 1532 ; 1533 #ifdef DIAGNOSTIC 1534 if (ii == NULL) 1535 panic("uhci_waitintr: lost intr_info"); 1536 #endif 1537 uhci_idone(ii); 1538 } 1539 1540 void 1541 uhci_poll(struct usbd_bus *bus) 1542 { 1543 uhci_softc_t *sc = (uhci_softc_t *)bus; 1544 1545 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1546 uhci_intr1(sc); 1547 } 1548 1549 void 1550 uhci_reset(uhci_softc_t *sc) 1551 { 1552 int n; 1553 1554 UHCICMD(sc, UHCI_CMD_HCRESET); 1555 /* The reset bit goes low when the controller is done. */ 1556 for (n = 0; n < UHCI_RESET_TIMEOUT && 1557 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1558 usb_delay_ms(&sc->sc_bus, 1); 1559 if (n >= UHCI_RESET_TIMEOUT) 1560 printf("%s: controller did not reset\n", 1561 USBDEVNAME(sc->sc_bus.bdev)); 1562 } 1563 1564 usbd_status 1565 uhci_run(uhci_softc_t *sc, int run) 1566 { 1567 int s, n, running; 1568 u_int16_t cmd; 1569 1570 run = run != 0; 1571 s = splhardusb(); 1572 DPRINTF(("uhci_run: setting run=%d\n", run)); 1573 cmd = UREAD2(sc, UHCI_CMD); 1574 if (run) 1575 cmd |= UHCI_CMD_RS; 1576 else 1577 cmd &= ~UHCI_CMD_RS; 1578 UHCICMD(sc, cmd); 1579 for(n = 0; n < 10; n++) { 1580 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1581 /* return when we've entered the state we want */ 1582 if (run == running) { 1583 splx(s); 1584 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1585 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1586 return (USBD_NORMAL_COMPLETION); 1587 } 1588 usb_delay_ms(&sc->sc_bus, 1); 1589 } 1590 splx(s); 1591 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1592 run ? "start" : "stop"); 1593 return (USBD_IOERROR); 1594 } 1595 1596 /* 1597 * Memory management routines. 1598 * uhci_alloc_std allocates TDs 1599 * uhci_alloc_sqh allocates QHs 1600 * These two routines do their own free list management, 1601 * partly for speed, partly because allocating DMAable memory 1602 * has page size granularaity so much memory would be wasted if 1603 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1604 */ 1605 1606 uhci_soft_td_t * 1607 uhci_alloc_std(uhci_softc_t *sc) 1608 { 1609 uhci_soft_td_t *std; 1610 usbd_status err; 1611 int i, offs; 1612 usb_dma_t dma; 1613 1614 if (sc->sc_freetds == NULL) { 1615 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1616 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1617 UHCI_TD_ALIGN, &dma); 1618 if (err) 1619 return (0); 1620 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1621 offs = i * UHCI_STD_SIZE; 1622 std = KERNADDR(&dma, offs); 1623 std->physaddr = DMAADDR(&dma, offs); 1624 std->link.std = sc->sc_freetds; 1625 sc->sc_freetds = std; 1626 } 1627 } 1628 std = sc->sc_freetds; 1629 sc->sc_freetds = std->link.std; 1630 memset(&std->td, 0, sizeof(uhci_td_t)); 1631 return std; 1632 } 1633 1634 void 1635 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1636 { 1637 #ifdef DIAGNOSTIC 1638 #define TD_IS_FREE 0x12345678 1639 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1640 printf("uhci_free_std: freeing free TD %p\n", std); 1641 return; 1642 } 1643 std->td.td_token = htole32(TD_IS_FREE); 1644 #endif 1645 std->link.std = sc->sc_freetds; 1646 sc->sc_freetds = std; 1647 } 1648 1649 uhci_soft_qh_t * 1650 uhci_alloc_sqh(uhci_softc_t *sc) 1651 { 1652 uhci_soft_qh_t *sqh; 1653 usbd_status err; 1654 int i, offs; 1655 usb_dma_t dma; 1656 1657 if (sc->sc_freeqhs == NULL) { 1658 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1659 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1660 UHCI_QH_ALIGN, &dma); 1661 if (err) 1662 return (0); 1663 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1664 offs = i * UHCI_SQH_SIZE; 1665 sqh = KERNADDR(&dma, offs); 1666 sqh->physaddr = DMAADDR(&dma, offs); 1667 sqh->hlink = sc->sc_freeqhs; 1668 sc->sc_freeqhs = sqh; 1669 } 1670 } 1671 sqh = sc->sc_freeqhs; 1672 sc->sc_freeqhs = sqh->hlink; 1673 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1674 return (sqh); 1675 } 1676 1677 void 1678 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1679 { 1680 sqh->hlink = sc->sc_freeqhs; 1681 sc->sc_freeqhs = sqh; 1682 } 1683 1684 void 1685 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1686 uhci_soft_td_t *stdend) 1687 { 1688 uhci_soft_td_t *p; 1689 1690 for (; std != stdend; std = p) { 1691 p = std->link.std; 1692 uhci_free_std(sc, std); 1693 } 1694 } 1695 1696 usbd_status 1697 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1698 int rd, u_int16_t flags, usb_dma_t *dma, 1699 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1700 { 1701 uhci_soft_td_t *p, *lastp; 1702 uhci_physaddr_t lastlink; 1703 int i, ntd, l, tog, maxp; 1704 u_int32_t status; 1705 int addr = upipe->pipe.device->address; 1706 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1707 1708 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1709 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1710 upipe->pipe.device->speed, flags)); 1711 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1712 if (maxp == 0) { 1713 printf("uhci_alloc_std_chain: maxp=0\n"); 1714 return (USBD_INVAL); 1715 } 1716 ntd = (len + maxp - 1) / maxp; 1717 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1718 ntd++; 1719 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1720 if (ntd == 0) { 1721 *sp = *ep = 0; 1722 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1723 return (USBD_NORMAL_COMPLETION); 1724 } 1725 tog = upipe->nexttoggle; 1726 if (ntd % 2 == 0) 1727 tog ^= 1; 1728 upipe->nexttoggle = tog ^ 1; 1729 lastp = NULL; 1730 lastlink = UHCI_PTR_T; 1731 ntd--; 1732 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1733 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1734 status |= UHCI_TD_LS; 1735 if (flags & USBD_SHORT_XFER_OK) 1736 status |= UHCI_TD_SPD; 1737 for (i = ntd; i >= 0; i--) { 1738 p = uhci_alloc_std(sc); 1739 if (p == NULL) { 1740 uhci_free_std_chain(sc, lastp, NULL); 1741 return (USBD_NOMEM); 1742 } 1743 p->link.std = lastp; 1744 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1745 lastp = p; 1746 lastlink = p->physaddr; 1747 p->td.td_status = htole32(status); 1748 if (i == ntd) { 1749 /* last TD */ 1750 l = len % maxp; 1751 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1752 l = maxp; 1753 *ep = p; 1754 } else 1755 l = maxp; 1756 p->td.td_token = 1757 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1758 UHCI_TD_OUT(l, endpt, addr, tog)); 1759 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1760 tog ^= 1; 1761 } 1762 *sp = lastp; 1763 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1764 upipe->nexttoggle)); 1765 return (USBD_NORMAL_COMPLETION); 1766 } 1767 1768 void 1769 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1770 { 1771 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1772 upipe->nexttoggle = 0; 1773 } 1774 1775 void 1776 uhci_noop(usbd_pipe_handle pipe) 1777 { 1778 } 1779 1780 usbd_status 1781 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1782 { 1783 usbd_status err; 1784 1785 /* Insert last in queue. */ 1786 err = usb_insert_transfer(xfer); 1787 if (err) 1788 return (err); 1789 1790 /* 1791 * Pipe isn't running (otherwise err would be USBD_INPROG), 1792 * so start it first. 1793 */ 1794 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1795 } 1796 1797 usbd_status 1798 uhci_device_bulk_start(usbd_xfer_handle xfer) 1799 { 1800 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1801 usbd_device_handle dev = upipe->pipe.device; 1802 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1803 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1804 uhci_soft_td_t *data, *dataend; 1805 uhci_soft_qh_t *sqh; 1806 usbd_status err; 1807 int len, isread, endpt; 1808 int s; 1809 1810 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1811 xfer, xfer->length, xfer->flags)); 1812 1813 if (sc->sc_dying) 1814 return (USBD_IOERROR); 1815 1816 #ifdef DIAGNOSTIC 1817 if (xfer->rqflags & URQ_REQUEST) 1818 panic("uhci_device_bulk_transfer: a request"); 1819 #endif 1820 1821 len = xfer->length; 1822 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1823 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1824 sqh = upipe->u.bulk.sqh; 1825 1826 upipe->u.bulk.isread = isread; 1827 upipe->u.bulk.length = len; 1828 1829 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1830 &xfer->dmabuf, &data, &dataend); 1831 if (err) 1832 return (err); 1833 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1834 1835 #ifdef UHCI_DEBUG 1836 if (uhcidebug > 8) { 1837 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1838 uhci_dump_tds(data); 1839 } 1840 #endif 1841 1842 /* Set up interrupt info. */ 1843 ii->xfer = xfer; 1844 ii->stdstart = data; 1845 ii->stdend = dataend; 1846 #ifdef DIAGNOSTIC 1847 if (!ii->isdone) { 1848 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1849 } 1850 ii->isdone = 0; 1851 #endif 1852 1853 sqh->elink = data; 1854 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1855 1856 s = splusb(); 1857 uhci_add_bulk(sc, sqh); 1858 uhci_add_intr_info(sc, ii); 1859 1860 if (xfer->timeout && !sc->sc_bus.use_polling) { 1861 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1862 uhci_timeout, ii); 1863 } 1864 xfer->status = USBD_IN_PROGRESS; 1865 splx(s); 1866 1867 #ifdef UHCI_DEBUG 1868 if (uhcidebug > 10) { 1869 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1870 uhci_dump_tds(data); 1871 } 1872 #endif 1873 1874 if (sc->sc_bus.use_polling) 1875 uhci_waitintr(sc, xfer); 1876 1877 return (USBD_IN_PROGRESS); 1878 } 1879 1880 /* Abort a device bulk request. */ 1881 void 1882 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1883 { 1884 DPRINTF(("uhci_device_bulk_abort:\n")); 1885 uhci_abort_xfer(xfer, USBD_CANCELLED); 1886 } 1887 1888 /* 1889 * Abort a device request. 1890 * If this routine is called at splusb() it guarantees that the request 1891 * will be removed from the hardware scheduling and that the callback 1892 * for it will be called with USBD_CANCELLED status. 1893 * It's impossible to guarantee that the requested transfer will not 1894 * have happened since the hardware runs concurrently. 1895 * If the transaction has already happened we rely on the ordinary 1896 * interrupt processing to process it. 1897 */ 1898 void 1899 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1900 { 1901 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1902 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1903 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1904 uhci_soft_td_t *std; 1905 int s; 1906 1907 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1908 1909 if (sc->sc_dying) { 1910 /* If we're dying, just do the software part. */ 1911 s = splusb(); 1912 xfer->status = status; /* make software ignore it */ 1913 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1914 usb_transfer_complete(xfer); 1915 splx(s); 1916 } 1917 1918 if (xfer->device->bus->intr_context || !curproc) 1919 panic("uhci_abort_xfer: not in process context"); 1920 1921 /* 1922 * Step 1: Make interrupt routine and hardware ignore xfer. 1923 */ 1924 s = splusb(); 1925 xfer->status = status; /* make software ignore it */ 1926 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1927 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1928 for (std = ii->stdstart; std != NULL; std = std->link.std) 1929 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1930 splx(s); 1931 1932 /* 1933 * Step 2: Wait until we know hardware has finished any possible 1934 * use of the xfer. Also make sure the soft interrupt routine 1935 * has run. 1936 */ 1937 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1938 s = splusb(); 1939 #ifdef USB_USE_SOFTINTR 1940 sc->sc_softwake = 1; 1941 #endif /* USB_USE_SOFTINTR */ 1942 usb_schedsoftintr(&sc->sc_bus); 1943 #ifdef USB_USE_SOFTINTR 1944 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1945 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1946 #endif /* USB_USE_SOFTINTR */ 1947 splx(s); 1948 1949 /* 1950 * Step 3: Execute callback. 1951 */ 1952 xfer->hcpriv = ii; 1953 1954 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1955 s = splusb(); 1956 #ifdef DIAGNOSTIC 1957 ii->isdone = 1; 1958 #endif 1959 usb_transfer_complete(xfer); 1960 splx(s); 1961 } 1962 1963 /* Close a device bulk pipe. */ 1964 void 1965 uhci_device_bulk_close(usbd_pipe_handle pipe) 1966 { 1967 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1968 usbd_device_handle dev = upipe->pipe.device; 1969 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1970 1971 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1972 } 1973 1974 usbd_status 1975 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1976 { 1977 usbd_status err; 1978 1979 /* Insert last in queue. */ 1980 err = usb_insert_transfer(xfer); 1981 if (err) 1982 return (err); 1983 1984 /* 1985 * Pipe isn't running (otherwise err would be USBD_INPROG), 1986 * so start it first. 1987 */ 1988 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1989 } 1990 1991 usbd_status 1992 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1993 { 1994 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1995 usbd_status err; 1996 1997 if (sc->sc_dying) 1998 return (USBD_IOERROR); 1999 2000 #ifdef DIAGNOSTIC 2001 if (!(xfer->rqflags & URQ_REQUEST)) 2002 panic("uhci_device_ctrl_transfer: not a request"); 2003 #endif 2004 2005 err = uhci_device_request(xfer); 2006 if (err) 2007 return (err); 2008 2009 if (sc->sc_bus.use_polling) 2010 uhci_waitintr(sc, xfer); 2011 return (USBD_IN_PROGRESS); 2012 } 2013 2014 usbd_status 2015 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2016 { 2017 usbd_status err; 2018 2019 /* Insert last in queue. */ 2020 err = usb_insert_transfer(xfer); 2021 if (err) 2022 return (err); 2023 2024 /* 2025 * Pipe isn't running (otherwise err would be USBD_INPROG), 2026 * so start it first. 2027 */ 2028 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2029 } 2030 2031 usbd_status 2032 uhci_device_intr_start(usbd_xfer_handle xfer) 2033 { 2034 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2035 usbd_device_handle dev = upipe->pipe.device; 2036 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2037 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2038 uhci_soft_td_t *data, *dataend; 2039 uhci_soft_qh_t *sqh; 2040 usbd_status err; 2041 int i, s; 2042 2043 if (sc->sc_dying) 2044 return (USBD_IOERROR); 2045 2046 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2047 xfer, xfer->length, xfer->flags)); 2048 2049 #ifdef DIAGNOSTIC 2050 if (xfer->rqflags & URQ_REQUEST) 2051 panic("uhci_device_intr_transfer: a request"); 2052 #endif 2053 2054 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2055 &xfer->dmabuf, &data, &dataend); 2056 if (err) 2057 return (err); 2058 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2059 2060 #ifdef UHCI_DEBUG 2061 if (uhcidebug > 10) { 2062 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2063 uhci_dump_tds(data); 2064 uhci_dump_qh(upipe->u.intr.qhs[0]); 2065 } 2066 #endif 2067 2068 s = splusb(); 2069 /* Set up interrupt info. */ 2070 ii->xfer = xfer; 2071 ii->stdstart = data; 2072 ii->stdend = dataend; 2073 #ifdef DIAGNOSTIC 2074 if (!ii->isdone) { 2075 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2076 } 2077 ii->isdone = 0; 2078 #endif 2079 2080 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2081 upipe->u.intr.qhs[0])); 2082 for (i = 0; i < upipe->u.intr.npoll; i++) { 2083 sqh = upipe->u.intr.qhs[i]; 2084 sqh->elink = data; 2085 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2086 } 2087 uhci_add_intr_info(sc, ii); 2088 xfer->status = USBD_IN_PROGRESS; 2089 splx(s); 2090 2091 #ifdef UHCI_DEBUG 2092 if (uhcidebug > 10) { 2093 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2094 uhci_dump_tds(data); 2095 uhci_dump_qh(upipe->u.intr.qhs[0]); 2096 } 2097 #endif 2098 2099 return (USBD_IN_PROGRESS); 2100 } 2101 2102 /* Abort a device control request. */ 2103 void 2104 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2105 { 2106 DPRINTF(("uhci_device_ctrl_abort:\n")); 2107 uhci_abort_xfer(xfer, USBD_CANCELLED); 2108 } 2109 2110 /* Close a device control pipe. */ 2111 void 2112 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2113 { 2114 } 2115 2116 /* Abort a device interrupt request. */ 2117 void 2118 uhci_device_intr_abort(usbd_xfer_handle xfer) 2119 { 2120 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2121 if (xfer->pipe->intrxfer == xfer) { 2122 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2123 xfer->pipe->intrxfer = NULL; 2124 } 2125 uhci_abort_xfer(xfer, USBD_CANCELLED); 2126 } 2127 2128 /* Close a device interrupt pipe. */ 2129 void 2130 uhci_device_intr_close(usbd_pipe_handle pipe) 2131 { 2132 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2133 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2134 int i, npoll; 2135 int s; 2136 2137 /* Unlink descriptors from controller data structures. */ 2138 npoll = upipe->u.intr.npoll; 2139 s = splusb(); 2140 for (i = 0; i < npoll; i++) 2141 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2142 splx(s); 2143 2144 /* 2145 * We now have to wait for any activity on the physical 2146 * descriptors to stop. 2147 */ 2148 usb_delay_ms(&sc->sc_bus, 2); 2149 2150 for(i = 0; i < npoll; i++) 2151 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2152 free(upipe->u.intr.qhs, M_USBHC); 2153 2154 /* XXX free other resources */ 2155 } 2156 2157 usbd_status 2158 uhci_device_request(usbd_xfer_handle xfer) 2159 { 2160 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2161 usb_device_request_t *req = &xfer->request; 2162 usbd_device_handle dev = upipe->pipe.device; 2163 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2164 int addr = dev->address; 2165 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2166 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2167 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2168 uhci_soft_qh_t *sqh; 2169 int len; 2170 u_int32_t ls; 2171 usbd_status err; 2172 int isread; 2173 int s; 2174 2175 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2176 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2177 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2178 UGETW(req->wIndex), UGETW(req->wLength), 2179 addr, endpt)); 2180 2181 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2182 isread = req->bmRequestType & UT_READ; 2183 len = UGETW(req->wLength); 2184 2185 setup = upipe->u.ctl.setup; 2186 stat = upipe->u.ctl.stat; 2187 sqh = upipe->u.ctl.sqh; 2188 2189 /* Set up data transaction */ 2190 if (len != 0) { 2191 upipe->nexttoggle = 1; 2192 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2193 &xfer->dmabuf, &data, &dataend); 2194 if (err) 2195 return (err); 2196 next = data; 2197 dataend->link.std = stat; 2198 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2199 } else { 2200 next = stat; 2201 } 2202 upipe->u.ctl.length = len; 2203 2204 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2205 2206 setup->link.std = next; 2207 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2208 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2209 UHCI_TD_ACTIVE); 2210 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2211 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2212 2213 stat->link.std = NULL; 2214 stat->td.td_link = htole32(UHCI_PTR_T); 2215 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2216 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2217 stat->td.td_token = 2218 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2219 UHCI_TD_IN (0, endpt, addr, 1)); 2220 stat->td.td_buffer = htole32(0); 2221 2222 #ifdef UHCI_DEBUG 2223 if (uhcidebug > 10) { 2224 DPRINTF(("uhci_device_request: before transfer\n")); 2225 uhci_dump_tds(setup); 2226 } 2227 #endif 2228 2229 /* Set up interrupt info. */ 2230 ii->xfer = xfer; 2231 ii->stdstart = setup; 2232 ii->stdend = stat; 2233 #ifdef DIAGNOSTIC 2234 if (!ii->isdone) { 2235 printf("uhci_device_request: not done, ii=%p\n", ii); 2236 } 2237 ii->isdone = 0; 2238 #endif 2239 2240 sqh->elink = setup; 2241 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2242 2243 s = splusb(); 2244 if (dev->speed == USB_SPEED_LOW) 2245 uhci_add_ls_ctrl(sc, sqh); 2246 else 2247 uhci_add_hs_ctrl(sc, sqh); 2248 uhci_add_intr_info(sc, ii); 2249 #ifdef UHCI_DEBUG 2250 if (uhcidebug > 12) { 2251 uhci_soft_td_t *std; 2252 uhci_soft_qh_t *xqh; 2253 uhci_soft_qh_t *sxqh; 2254 int maxqh = 0; 2255 uhci_physaddr_t link; 2256 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2257 for (std = sc->sc_vframes[0].htd, link = 0; 2258 (link & UHCI_PTR_QH) == 0; 2259 std = std->link.std) { 2260 link = le32toh(std->td.td_link); 2261 uhci_dump_td(std); 2262 } 2263 sxqh = (uhci_soft_qh_t *)std; 2264 uhci_dump_qh(sxqh); 2265 for (xqh = sxqh; 2266 xqh != NULL; 2267 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2268 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2269 uhci_dump_qh(xqh); 2270 } 2271 DPRINTF(("Enqueued QH:\n")); 2272 uhci_dump_qh(sqh); 2273 uhci_dump_tds(sqh->elink); 2274 } 2275 #endif 2276 if (xfer->timeout && !sc->sc_bus.use_polling) { 2277 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2278 uhci_timeout, ii); 2279 } 2280 xfer->status = USBD_IN_PROGRESS; 2281 splx(s); 2282 2283 return (USBD_NORMAL_COMPLETION); 2284 } 2285 2286 usbd_status 2287 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2288 { 2289 usbd_status err; 2290 2291 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2292 2293 /* Put it on our queue, */ 2294 err = usb_insert_transfer(xfer); 2295 2296 /* bail out on error, */ 2297 if (err && err != USBD_IN_PROGRESS) 2298 return (err); 2299 2300 /* XXX should check inuse here */ 2301 2302 /* insert into schedule, */ 2303 uhci_device_isoc_enter(xfer); 2304 2305 /* and start if the pipe wasn't running */ 2306 if (!err) 2307 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2308 2309 return (err); 2310 } 2311 2312 void 2313 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2314 { 2315 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2316 usbd_device_handle dev = upipe->pipe.device; 2317 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2318 struct iso *iso = &upipe->u.iso; 2319 uhci_soft_td_t *std; 2320 u_int32_t buf, len, status; 2321 int s, i, next, nframes; 2322 2323 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2324 "nframes=%d\n", 2325 iso->inuse, iso->next, xfer, xfer->nframes)); 2326 2327 if (sc->sc_dying) 2328 return; 2329 2330 if (xfer->status == USBD_IN_PROGRESS) { 2331 /* This request has already been entered into the frame list */ 2332 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2333 /* XXX */ 2334 } 2335 2336 #ifdef DIAGNOSTIC 2337 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2338 printf("uhci_device_isoc_enter: overflow!\n"); 2339 #endif 2340 2341 next = iso->next; 2342 if (next == -1) { 2343 /* Not in use yet, schedule it a few frames ahead. */ 2344 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2345 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2346 } 2347 2348 xfer->status = USBD_IN_PROGRESS; 2349 UXFER(xfer)->curframe = next; 2350 2351 buf = DMAADDR(&xfer->dmabuf, 0); 2352 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2353 UHCI_TD_ACTIVE | 2354 UHCI_TD_IOS); 2355 nframes = xfer->nframes; 2356 s = splusb(); 2357 for (i = 0; i < nframes; i++) { 2358 std = iso->stds[next]; 2359 if (++next >= UHCI_VFRAMELIST_COUNT) 2360 next = 0; 2361 len = xfer->frlengths[i]; 2362 std->td.td_buffer = htole32(buf); 2363 if (i == nframes - 1) 2364 status |= UHCI_TD_IOC; 2365 std->td.td_status = htole32(status); 2366 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2367 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2368 #ifdef UHCI_DEBUG 2369 if (uhcidebug > 5) { 2370 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2371 uhci_dump_td(std); 2372 } 2373 #endif 2374 buf += len; 2375 } 2376 iso->next = next; 2377 iso->inuse += xfer->nframes; 2378 2379 splx(s); 2380 } 2381 2382 usbd_status 2383 uhci_device_isoc_start(usbd_xfer_handle xfer) 2384 { 2385 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2386 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2387 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2388 uhci_soft_td_t *end; 2389 int s, i; 2390 2391 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2392 2393 if (sc->sc_dying) 2394 return (USBD_IOERROR); 2395 2396 #ifdef DIAGNOSTIC 2397 if (xfer->status != USBD_IN_PROGRESS) 2398 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2399 #endif 2400 2401 /* Find the last TD */ 2402 i = UXFER(xfer)->curframe + xfer->nframes; 2403 if (i >= UHCI_VFRAMELIST_COUNT) 2404 i -= UHCI_VFRAMELIST_COUNT; 2405 end = upipe->u.iso.stds[i]; 2406 2407 #ifdef DIAGNOSTIC 2408 if (end == NULL) { 2409 printf("uhci_device_isoc_start: end == NULL\n"); 2410 return (USBD_INVAL); 2411 } 2412 #endif 2413 2414 s = splusb(); 2415 2416 /* Set up interrupt info. */ 2417 ii->xfer = xfer; 2418 ii->stdstart = end; 2419 ii->stdend = end; 2420 #ifdef DIAGNOSTIC 2421 if (!ii->isdone) 2422 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2423 ii->isdone = 0; 2424 #endif 2425 uhci_add_intr_info(sc, ii); 2426 2427 splx(s); 2428 2429 return (USBD_IN_PROGRESS); 2430 } 2431 2432 void 2433 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2434 { 2435 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2436 uhci_soft_td_t **stds = upipe->u.iso.stds; 2437 uhci_soft_td_t *std; 2438 int i, n, s, nframes, maxlen, len; 2439 2440 s = splusb(); 2441 2442 /* Transfer is already done. */ 2443 if (xfer->status != USBD_NOT_STARTED && 2444 xfer->status != USBD_IN_PROGRESS) { 2445 splx(s); 2446 return; 2447 } 2448 2449 /* Give xfer the requested abort code. */ 2450 xfer->status = USBD_CANCELLED; 2451 2452 /* make hardware ignore it, */ 2453 nframes = xfer->nframes; 2454 n = UXFER(xfer)->curframe; 2455 maxlen = 0; 2456 for (i = 0; i < nframes; i++) { 2457 std = stds[n]; 2458 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2459 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2460 if (len > maxlen) 2461 maxlen = len; 2462 if (++n >= UHCI_VFRAMELIST_COUNT) 2463 n = 0; 2464 } 2465 2466 /* and wait until we are sure the hardware has finished. */ 2467 delay(maxlen); 2468 2469 #ifdef DIAGNOSTIC 2470 UXFER(xfer)->iinfo.isdone = 1; 2471 #endif 2472 /* Run callback and remove from interrupt list. */ 2473 usb_transfer_complete(xfer); 2474 2475 splx(s); 2476 } 2477 2478 void 2479 uhci_device_isoc_close(usbd_pipe_handle pipe) 2480 { 2481 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2482 usbd_device_handle dev = upipe->pipe.device; 2483 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2484 uhci_soft_td_t *std, *vstd; 2485 struct iso *iso; 2486 int i, s; 2487 2488 /* 2489 * Make sure all TDs are marked as inactive. 2490 * Wait for completion. 2491 * Unschedule. 2492 * Deallocate. 2493 */ 2494 iso = &upipe->u.iso; 2495 2496 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2497 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2498 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2499 2500 s = splusb(); 2501 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2502 std = iso->stds[i]; 2503 for (vstd = sc->sc_vframes[i].htd; 2504 vstd != NULL && vstd->link.std != std; 2505 vstd = vstd->link.std) 2506 ; 2507 if (vstd == NULL) { 2508 /*panic*/ 2509 printf("uhci_device_isoc_close: %p not found\n", std); 2510 splx(s); 2511 return; 2512 } 2513 vstd->link = std->link; 2514 vstd->td.td_link = std->td.td_link; 2515 uhci_free_std(sc, std); 2516 } 2517 splx(s); 2518 2519 free(iso->stds, M_USBHC); 2520 } 2521 2522 usbd_status 2523 uhci_setup_isoc(usbd_pipe_handle pipe) 2524 { 2525 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2526 usbd_device_handle dev = upipe->pipe.device; 2527 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2528 int addr = upipe->pipe.device->address; 2529 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2530 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2531 uhci_soft_td_t *std, *vstd; 2532 u_int32_t token; 2533 struct iso *iso; 2534 int i, s; 2535 2536 iso = &upipe->u.iso; 2537 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2538 M_USBHC, M_WAITOK); 2539 2540 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2541 UHCI_TD_OUT(0, endpt, addr, 0); 2542 2543 /* Allocate the TDs and mark as inactive; */ 2544 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2545 std = uhci_alloc_std(sc); 2546 if (std == 0) 2547 goto bad; 2548 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2549 std->td.td_token = htole32(token); 2550 iso->stds[i] = std; 2551 } 2552 2553 /* Insert TDs into schedule. */ 2554 s = splusb(); 2555 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2556 std = iso->stds[i]; 2557 vstd = sc->sc_vframes[i].htd; 2558 std->link = vstd->link; 2559 std->td.td_link = vstd->td.td_link; 2560 vstd->link.std = std; 2561 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2562 } 2563 splx(s); 2564 2565 iso->next = -1; 2566 iso->inuse = 0; 2567 2568 return (USBD_NORMAL_COMPLETION); 2569 2570 bad: 2571 while (--i >= 0) 2572 uhci_free_std(sc, iso->stds[i]); 2573 free(iso->stds, M_USBHC); 2574 return (USBD_NOMEM); 2575 } 2576 2577 void 2578 uhci_device_isoc_done(usbd_xfer_handle xfer) 2579 { 2580 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2581 2582 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2583 2584 if (ii->xfer != xfer) 2585 /* Not on interrupt list, ignore it. */ 2586 return; 2587 2588 #ifdef DIAGNOSTIC 2589 if (xfer->busy_free != XFER_BUSY) { 2590 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2591 xfer, xfer->busy_free); 2592 return; 2593 } 2594 2595 if (ii->stdend == NULL) { 2596 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2597 #ifdef UHCI_DEBUG 2598 uhci_dump_ii(ii); 2599 #endif 2600 return; 2601 } 2602 #endif 2603 2604 /* Turn off the interrupt since it is active even if the TD is not. */ 2605 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2606 2607 uhci_del_intr_info(ii); /* remove from active list */ 2608 } 2609 2610 void 2611 uhci_device_intr_done(usbd_xfer_handle xfer) 2612 { 2613 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2614 uhci_softc_t *sc = ii->sc; 2615 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2616 uhci_soft_qh_t *sqh; 2617 int i, npoll; 2618 2619 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2620 2621 npoll = upipe->u.intr.npoll; 2622 for(i = 0; i < npoll; i++) { 2623 sqh = upipe->u.intr.qhs[i]; 2624 sqh->elink = NULL; 2625 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2626 } 2627 uhci_free_std_chain(sc, ii->stdstart, NULL); 2628 2629 /* XXX Wasteful. */ 2630 if (xfer->pipe->repeat) { 2631 uhci_soft_td_t *data, *dataend; 2632 2633 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2634 2635 /* This alloc cannot fail since we freed the chain above. */ 2636 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2637 &xfer->dmabuf, &data, &dataend); 2638 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2639 2640 #ifdef UHCI_DEBUG 2641 if (uhcidebug > 10) { 2642 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2643 uhci_dump_tds(data); 2644 uhci_dump_qh(upipe->u.intr.qhs[0]); 2645 } 2646 #endif 2647 2648 ii->stdstart = data; 2649 ii->stdend = dataend; 2650 #ifdef DIAGNOSTIC 2651 if (!ii->isdone) { 2652 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2653 } 2654 ii->isdone = 0; 2655 #endif 2656 for (i = 0; i < npoll; i++) { 2657 sqh = upipe->u.intr.qhs[i]; 2658 sqh->elink = data; 2659 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2660 } 2661 xfer->status = USBD_IN_PROGRESS; 2662 /* The ii is already on the examined list, just leave it. */ 2663 } else { 2664 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2665 uhci_del_intr_info(ii); 2666 } 2667 } 2668 2669 /* Deallocate request data structures */ 2670 void 2671 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2672 { 2673 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2674 uhci_softc_t *sc = ii->sc; 2675 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2676 2677 #ifdef DIAGNOSTIC 2678 if (!(xfer->rqflags & URQ_REQUEST)) 2679 panic("uhci_ctrl_done: not a request"); 2680 #endif 2681 2682 uhci_del_intr_info(ii); /* remove from active list */ 2683 2684 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2685 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2686 else 2687 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2688 2689 if (upipe->u.ctl.length != 0) 2690 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2691 2692 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2693 } 2694 2695 /* Deallocate request data structures */ 2696 void 2697 uhci_device_bulk_done(usbd_xfer_handle xfer) 2698 { 2699 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2700 uhci_softc_t *sc = ii->sc; 2701 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2702 2703 uhci_del_intr_info(ii); /* remove from active list */ 2704 2705 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2706 2707 uhci_free_std_chain(sc, ii->stdstart, NULL); 2708 2709 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2710 } 2711 2712 /* Add interrupt QH, called with vflock. */ 2713 void 2714 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2715 { 2716 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2717 uhci_soft_qh_t *eqh; 2718 2719 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2720 2721 eqh = vf->eqh; 2722 sqh->hlink = eqh->hlink; 2723 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2724 eqh->hlink = sqh; 2725 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2726 vf->eqh = sqh; 2727 vf->bandwidth++; 2728 } 2729 2730 /* Remove interrupt QH. */ 2731 void 2732 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2733 { 2734 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2735 uhci_soft_qh_t *pqh; 2736 2737 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2738 2739 /* See comment in uhci_remove_ctrl() */ 2740 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2741 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2742 delay(UHCI_QH_REMOVE_DELAY); 2743 } 2744 2745 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2746 pqh->hlink = sqh->hlink; 2747 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2748 delay(UHCI_QH_REMOVE_DELAY); 2749 if (vf->eqh == sqh) 2750 vf->eqh = pqh; 2751 vf->bandwidth--; 2752 } 2753 2754 usbd_status 2755 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2756 { 2757 uhci_soft_qh_t *sqh; 2758 int i, npoll, s; 2759 u_int bestbw, bw, bestoffs, offs; 2760 2761 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2762 if (ival == 0) { 2763 printf("uhci_setintr: 0 interval\n"); 2764 return (USBD_INVAL); 2765 } 2766 2767 if (ival > UHCI_VFRAMELIST_COUNT) 2768 ival = UHCI_VFRAMELIST_COUNT; 2769 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2770 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2771 2772 upipe->u.intr.npoll = npoll; 2773 upipe->u.intr.qhs = 2774 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2775 2776 /* 2777 * Figure out which offset in the schedule that has most 2778 * bandwidth left over. 2779 */ 2780 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2781 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2782 for (bw = i = 0; i < npoll; i++) 2783 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2784 if (bw < bestbw) { 2785 bestbw = bw; 2786 bestoffs = offs; 2787 } 2788 } 2789 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2790 2791 for(i = 0; i < npoll; i++) { 2792 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2793 sqh->elink = NULL; 2794 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2795 sqh->pos = MOD(i * ival + bestoffs); 2796 } 2797 #undef MOD 2798 2799 s = splusb(); 2800 /* Enter QHs into the controller data structures. */ 2801 for(i = 0; i < npoll; i++) 2802 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2803 splx(s); 2804 2805 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2806 return (USBD_NORMAL_COMPLETION); 2807 } 2808 2809 /* Open a new pipe. */ 2810 usbd_status 2811 uhci_open(usbd_pipe_handle pipe) 2812 { 2813 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2814 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2815 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2816 usbd_status err; 2817 int ival; 2818 2819 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2820 pipe, pipe->device->address, 2821 ed->bEndpointAddress, sc->sc_addr)); 2822 2823 upipe->aborting = 0; 2824 upipe->nexttoggle = 0; 2825 2826 if (pipe->device->address == sc->sc_addr) { 2827 switch (ed->bEndpointAddress) { 2828 case USB_CONTROL_ENDPOINT: 2829 pipe->methods = &uhci_root_ctrl_methods; 2830 break; 2831 case UE_DIR_IN | UHCI_INTR_ENDPT: 2832 pipe->methods = &uhci_root_intr_methods; 2833 break; 2834 default: 2835 return (USBD_INVAL); 2836 } 2837 } else { 2838 switch (ed->bmAttributes & UE_XFERTYPE) { 2839 case UE_CONTROL: 2840 pipe->methods = &uhci_device_ctrl_methods; 2841 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2842 if (upipe->u.ctl.sqh == NULL) 2843 goto bad; 2844 upipe->u.ctl.setup = uhci_alloc_std(sc); 2845 if (upipe->u.ctl.setup == NULL) { 2846 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2847 goto bad; 2848 } 2849 upipe->u.ctl.stat = uhci_alloc_std(sc); 2850 if (upipe->u.ctl.stat == NULL) { 2851 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2852 uhci_free_std(sc, upipe->u.ctl.setup); 2853 goto bad; 2854 } 2855 err = usb_allocmem(&sc->sc_bus, 2856 sizeof(usb_device_request_t), 2857 0, &upipe->u.ctl.reqdma); 2858 if (err) { 2859 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2860 uhci_free_std(sc, upipe->u.ctl.setup); 2861 uhci_free_std(sc, upipe->u.ctl.stat); 2862 goto bad; 2863 } 2864 break; 2865 case UE_INTERRUPT: 2866 pipe->methods = &uhci_device_intr_methods; 2867 ival = pipe->interval; 2868 if (ival == USBD_DEFAULT_INTERVAL) 2869 ival = ed->bInterval; 2870 return (uhci_device_setintr(sc, upipe, ival)); 2871 case UE_ISOCHRONOUS: 2872 pipe->methods = &uhci_device_isoc_methods; 2873 return (uhci_setup_isoc(pipe)); 2874 case UE_BULK: 2875 pipe->methods = &uhci_device_bulk_methods; 2876 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2877 if (upipe->u.bulk.sqh == NULL) 2878 goto bad; 2879 break; 2880 } 2881 } 2882 return (USBD_NORMAL_COMPLETION); 2883 2884 bad: 2885 return (USBD_NOMEM); 2886 } 2887 2888 /* 2889 * Data structures and routines to emulate the root hub. 2890 */ 2891 usb_device_descriptor_t uhci_devd = { 2892 USB_DEVICE_DESCRIPTOR_SIZE, 2893 UDESC_DEVICE, /* type */ 2894 {0x00, 0x01}, /* USB version */ 2895 UDCLASS_HUB, /* class */ 2896 UDSUBCLASS_HUB, /* subclass */ 2897 UDPROTO_FSHUB, /* protocol */ 2898 64, /* max packet */ 2899 {0},{0},{0x00,0x01}, /* device id */ 2900 1,2,0, /* string indicies */ 2901 1 /* # of configurations */ 2902 }; 2903 2904 usb_config_descriptor_t uhci_confd = { 2905 USB_CONFIG_DESCRIPTOR_SIZE, 2906 UDESC_CONFIG, 2907 {USB_CONFIG_DESCRIPTOR_SIZE + 2908 USB_INTERFACE_DESCRIPTOR_SIZE + 2909 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2910 1, 2911 1, 2912 0, 2913 UC_SELF_POWERED, 2914 0 /* max power */ 2915 }; 2916 2917 usb_interface_descriptor_t uhci_ifcd = { 2918 USB_INTERFACE_DESCRIPTOR_SIZE, 2919 UDESC_INTERFACE, 2920 0, 2921 0, 2922 1, 2923 UICLASS_HUB, 2924 UISUBCLASS_HUB, 2925 UIPROTO_FSHUB, 2926 0 2927 }; 2928 2929 usb_endpoint_descriptor_t uhci_endpd = { 2930 USB_ENDPOINT_DESCRIPTOR_SIZE, 2931 UDESC_ENDPOINT, 2932 UE_DIR_IN | UHCI_INTR_ENDPT, 2933 UE_INTERRUPT, 2934 {8}, 2935 255 2936 }; 2937 2938 usb_hub_descriptor_t uhci_hubd_piix = { 2939 USB_HUB_DESCRIPTOR_SIZE, 2940 UDESC_HUB, 2941 2, 2942 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2943 50, /* power on to power good */ 2944 0, 2945 { 0x00 }, /* both ports are removable */ 2946 }; 2947 2948 int 2949 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2950 { 2951 int i; 2952 2953 if (l == 0) 2954 return (0); 2955 p->bLength = 2 * strlen(s) + 2; 2956 if (l == 1) 2957 return (1); 2958 p->bDescriptorType = UDESC_STRING; 2959 l -= 2; 2960 for (i = 0; s[i] && l > 1; i++, l -= 2) 2961 USETW2(p->bString[i], 0, s[i]); 2962 return (2*i+2); 2963 } 2964 2965 /* 2966 * Simulate a hardware hub by handling all the necessary requests. 2967 */ 2968 usbd_status 2969 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2970 { 2971 usbd_status err; 2972 2973 /* Insert last in queue. */ 2974 err = usb_insert_transfer(xfer); 2975 if (err) 2976 return (err); 2977 2978 /* 2979 * Pipe isn't running (otherwise err would be USBD_INPROG), 2980 * so start it first. 2981 */ 2982 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2983 } 2984 2985 usbd_status 2986 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2987 { 2988 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2989 usb_device_request_t *req; 2990 void *buf = NULL; 2991 int port, x; 2992 int s, len, value, index, status, change, l, totlen = 0; 2993 usb_port_status_t ps; 2994 usbd_status err; 2995 2996 if (sc->sc_dying) 2997 return (USBD_IOERROR); 2998 2999 #ifdef DIAGNOSTIC 3000 if (!(xfer->rqflags & URQ_REQUEST)) 3001 panic("uhci_root_ctrl_transfer: not a request"); 3002 #endif 3003 req = &xfer->request; 3004 3005 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3006 req->bmRequestType, req->bRequest)); 3007 3008 len = UGETW(req->wLength); 3009 value = UGETW(req->wValue); 3010 index = UGETW(req->wIndex); 3011 3012 if (len != 0) 3013 buf = KERNADDR(&xfer->dmabuf, 0); 3014 3015 #define C(x,y) ((x) | ((y) << 8)) 3016 switch(C(req->bRequest, req->bmRequestType)) { 3017 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3018 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3019 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3020 /* 3021 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3022 * for the integrated root hub. 3023 */ 3024 break; 3025 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3026 if (len > 0) { 3027 *(u_int8_t *)buf = sc->sc_conf; 3028 totlen = 1; 3029 } 3030 break; 3031 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3032 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3033 switch(value >> 8) { 3034 case UDESC_DEVICE: 3035 if ((value & 0xff) != 0) { 3036 err = USBD_IOERROR; 3037 goto ret; 3038 } 3039 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3040 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3041 memcpy(buf, &uhci_devd, l); 3042 break; 3043 case UDESC_CONFIG: 3044 if ((value & 0xff) != 0) { 3045 err = USBD_IOERROR; 3046 goto ret; 3047 } 3048 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3049 memcpy(buf, &uhci_confd, l); 3050 buf = (char *)buf + l; 3051 len -= l; 3052 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3053 totlen += l; 3054 memcpy(buf, &uhci_ifcd, l); 3055 buf = (char *)buf + l; 3056 len -= l; 3057 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3058 totlen += l; 3059 memcpy(buf, &uhci_endpd, l); 3060 break; 3061 case UDESC_STRING: 3062 if (len == 0) 3063 break; 3064 *(u_int8_t *)buf = 0; 3065 totlen = 1; 3066 switch (value & 0xff) { 3067 case 1: /* Vendor */ 3068 totlen = uhci_str(buf, len, sc->sc_vendor); 3069 break; 3070 case 2: /* Product */ 3071 totlen = uhci_str(buf, len, "UHCI root hub"); 3072 break; 3073 } 3074 break; 3075 default: 3076 err = USBD_IOERROR; 3077 goto ret; 3078 } 3079 break; 3080 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3081 if (len > 0) { 3082 *(u_int8_t *)buf = 0; 3083 totlen = 1; 3084 } 3085 break; 3086 case C(UR_GET_STATUS, UT_READ_DEVICE): 3087 if (len > 1) { 3088 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3089 totlen = 2; 3090 } 3091 break; 3092 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3093 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3094 if (len > 1) { 3095 USETW(((usb_status_t *)buf)->wStatus, 0); 3096 totlen = 2; 3097 } 3098 break; 3099 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3100 if (value >= USB_MAX_DEVICES) { 3101 err = USBD_IOERROR; 3102 goto ret; 3103 } 3104 sc->sc_addr = value; 3105 break; 3106 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3107 if (value != 0 && value != 1) { 3108 err = USBD_IOERROR; 3109 goto ret; 3110 } 3111 sc->sc_conf = value; 3112 break; 3113 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3114 break; 3115 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3116 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3117 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3118 err = USBD_IOERROR; 3119 goto ret; 3120 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3121 break; 3122 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3123 break; 3124 /* Hub requests */ 3125 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3126 break; 3127 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3128 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3129 "port=%d feature=%d\n", 3130 index, value)); 3131 if (index == 1) 3132 port = UHCI_PORTSC1; 3133 else if (index == 2) 3134 port = UHCI_PORTSC2; 3135 else { 3136 err = USBD_IOERROR; 3137 goto ret; 3138 } 3139 switch(value) { 3140 case UHF_PORT_ENABLE: 3141 x = URWMASK(UREAD2(sc, port)); 3142 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3143 break; 3144 case UHF_PORT_SUSPEND: 3145 x = URWMASK(UREAD2(sc, port)); 3146 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3147 break; 3148 case UHF_PORT_RESET: 3149 x = URWMASK(UREAD2(sc, port)); 3150 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3151 break; 3152 case UHF_C_PORT_CONNECTION: 3153 x = URWMASK(UREAD2(sc, port)); 3154 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3155 break; 3156 case UHF_C_PORT_ENABLE: 3157 x = URWMASK(UREAD2(sc, port)); 3158 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3159 break; 3160 case UHF_C_PORT_OVER_CURRENT: 3161 x = URWMASK(UREAD2(sc, port)); 3162 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3163 break; 3164 case UHF_C_PORT_RESET: 3165 sc->sc_isreset = 0; 3166 err = USBD_NORMAL_COMPLETION; 3167 goto ret; 3168 case UHF_PORT_CONNECTION: 3169 case UHF_PORT_OVER_CURRENT: 3170 case UHF_PORT_POWER: 3171 case UHF_PORT_LOW_SPEED: 3172 case UHF_C_PORT_SUSPEND: 3173 default: 3174 err = USBD_IOERROR; 3175 goto ret; 3176 } 3177 break; 3178 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3179 if (index == 1) 3180 port = UHCI_PORTSC1; 3181 else if (index == 2) 3182 port = UHCI_PORTSC2; 3183 else { 3184 err = USBD_IOERROR; 3185 goto ret; 3186 } 3187 if (len > 0) { 3188 *(u_int8_t *)buf = 3189 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3190 UHCI_PORTSC_LS_SHIFT; 3191 totlen = 1; 3192 } 3193 break; 3194 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3195 if (value != 0) { 3196 err = USBD_IOERROR; 3197 goto ret; 3198 } 3199 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3200 totlen = l; 3201 memcpy(buf, &uhci_hubd_piix, l); 3202 break; 3203 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3204 if (len != 4) { 3205 err = USBD_IOERROR; 3206 goto ret; 3207 } 3208 memset(buf, 0, len); 3209 totlen = len; 3210 break; 3211 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3212 if (index == 1) 3213 port = UHCI_PORTSC1; 3214 else if (index == 2) 3215 port = UHCI_PORTSC2; 3216 else { 3217 err = USBD_IOERROR; 3218 goto ret; 3219 } 3220 if (len != 4) { 3221 err = USBD_IOERROR; 3222 goto ret; 3223 } 3224 x = UREAD2(sc, port); 3225 status = change = 0; 3226 if (x & UHCI_PORTSC_CCS) 3227 status |= UPS_CURRENT_CONNECT_STATUS; 3228 if (x & UHCI_PORTSC_CSC) 3229 change |= UPS_C_CONNECT_STATUS; 3230 if (x & UHCI_PORTSC_PE) 3231 status |= UPS_PORT_ENABLED; 3232 if (x & UHCI_PORTSC_POEDC) 3233 change |= UPS_C_PORT_ENABLED; 3234 if (x & UHCI_PORTSC_OCI) 3235 status |= UPS_OVERCURRENT_INDICATOR; 3236 if (x & UHCI_PORTSC_OCIC) 3237 change |= UPS_C_OVERCURRENT_INDICATOR; 3238 if (x & UHCI_PORTSC_SUSP) 3239 status |= UPS_SUSPEND; 3240 if (x & UHCI_PORTSC_LSDA) 3241 status |= UPS_LOW_SPEED; 3242 status |= UPS_PORT_POWER; 3243 if (sc->sc_isreset) 3244 change |= UPS_C_PORT_RESET; 3245 USETW(ps.wPortStatus, status); 3246 USETW(ps.wPortChange, change); 3247 l = min(len, sizeof ps); 3248 memcpy(buf, &ps, l); 3249 totlen = l; 3250 break; 3251 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3252 err = USBD_IOERROR; 3253 goto ret; 3254 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3255 break; 3256 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3257 if (index == 1) 3258 port = UHCI_PORTSC1; 3259 else if (index == 2) 3260 port = UHCI_PORTSC2; 3261 else { 3262 err = USBD_IOERROR; 3263 goto ret; 3264 } 3265 switch(value) { 3266 case UHF_PORT_ENABLE: 3267 x = URWMASK(UREAD2(sc, port)); 3268 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3269 break; 3270 case UHF_PORT_SUSPEND: 3271 x = URWMASK(UREAD2(sc, port)); 3272 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3273 break; 3274 case UHF_PORT_RESET: 3275 x = URWMASK(UREAD2(sc, port)); 3276 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3277 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3278 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3279 delay(100); 3280 x = UREAD2(sc, port); 3281 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3282 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3283 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3284 index, UREAD2(sc, port))); 3285 sc->sc_isreset = 1; 3286 break; 3287 case UHF_PORT_POWER: 3288 /* Pretend we turned on power */ 3289 err = USBD_NORMAL_COMPLETION; 3290 goto ret; 3291 case UHF_C_PORT_CONNECTION: 3292 case UHF_C_PORT_ENABLE: 3293 case UHF_C_PORT_OVER_CURRENT: 3294 case UHF_PORT_CONNECTION: 3295 case UHF_PORT_OVER_CURRENT: 3296 case UHF_PORT_LOW_SPEED: 3297 case UHF_C_PORT_SUSPEND: 3298 case UHF_C_PORT_RESET: 3299 default: 3300 err = USBD_IOERROR; 3301 goto ret; 3302 } 3303 break; 3304 default: 3305 err = USBD_IOERROR; 3306 goto ret; 3307 } 3308 xfer->actlen = totlen; 3309 err = USBD_NORMAL_COMPLETION; 3310 ret: 3311 xfer->status = err; 3312 s = splusb(); 3313 usb_transfer_complete(xfer); 3314 splx(s); 3315 return (USBD_IN_PROGRESS); 3316 } 3317 3318 /* Abort a root control request. */ 3319 void 3320 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3321 { 3322 /* Nothing to do, all transfers are synchronous. */ 3323 } 3324 3325 /* Close the root pipe. */ 3326 void 3327 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3328 { 3329 DPRINTF(("uhci_root_ctrl_close\n")); 3330 } 3331 3332 /* Abort a root interrupt request. */ 3333 void 3334 uhci_root_intr_abort(usbd_xfer_handle xfer) 3335 { 3336 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3337 3338 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3339 sc->sc_intr_xfer = NULL; 3340 3341 if (xfer->pipe->intrxfer == xfer) { 3342 DPRINTF(("uhci_root_intr_abort: remove\n")); 3343 xfer->pipe->intrxfer = 0; 3344 } 3345 xfer->status = USBD_CANCELLED; 3346 #ifdef DIAGNOSTIC 3347 UXFER(xfer)->iinfo.isdone = 1; 3348 #endif 3349 usb_transfer_complete(xfer); 3350 } 3351 3352 usbd_status 3353 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3354 { 3355 usbd_status err; 3356 3357 /* Insert last in queue. */ 3358 err = usb_insert_transfer(xfer); 3359 if (err) 3360 return (err); 3361 3362 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3363 * start first 3364 */ 3365 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3366 } 3367 3368 /* Start a transfer on the root interrupt pipe */ 3369 usbd_status 3370 uhci_root_intr_start(usbd_xfer_handle xfer) 3371 { 3372 usbd_pipe_handle pipe = xfer->pipe; 3373 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3374 3375 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3376 xfer, xfer->length, xfer->flags)); 3377 3378 if (sc->sc_dying) 3379 return (USBD_IOERROR); 3380 3381 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3382 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3383 sc->sc_intr_xfer = xfer; 3384 return (USBD_IN_PROGRESS); 3385 } 3386 3387 /* Close the root interrupt pipe. */ 3388 void 3389 uhci_root_intr_close(usbd_pipe_handle pipe) 3390 { 3391 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3392 3393 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3394 sc->sc_intr_xfer = NULL; 3395 DPRINTF(("uhci_root_intr_close\n")); 3396 } 3397
Indexes created Tue Sep 30 20:09:53 GMT 2025