uhci.c revision 1.155
1 /* $NetBSD: uhci.c,v 1.155 2002/02/27 12:42:41 augustss 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 1.155 2002/02/27 12:42:41 augustss 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)); } while (0) 280 #define UWRITE2(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 282 #define UWRITE4(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 284 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 285 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 286 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 287 288 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 289 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 290 291 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 292 293 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 294 295 #define UHCI_INTR_ENDPT 1 296 297 struct usbd_bus_methods uhci_bus_methods = { 298 uhci_open, 299 uhci_softintr, 300 uhci_poll, 301 uhci_allocm, 302 uhci_freem, 303 uhci_allocx, 304 uhci_freex, 305 }; 306 307 struct usbd_pipe_methods uhci_root_ctrl_methods = { 308 uhci_root_ctrl_transfer, 309 uhci_root_ctrl_start, 310 uhci_root_ctrl_abort, 311 uhci_root_ctrl_close, 312 uhci_noop, 313 uhci_root_ctrl_done, 314 }; 315 316 struct usbd_pipe_methods uhci_root_intr_methods = { 317 uhci_root_intr_transfer, 318 uhci_root_intr_start, 319 uhci_root_intr_abort, 320 uhci_root_intr_close, 321 uhci_noop, 322 uhci_root_intr_done, 323 }; 324 325 struct usbd_pipe_methods uhci_device_ctrl_methods = { 326 uhci_device_ctrl_transfer, 327 uhci_device_ctrl_start, 328 uhci_device_ctrl_abort, 329 uhci_device_ctrl_close, 330 uhci_noop, 331 uhci_device_ctrl_done, 332 }; 333 334 struct usbd_pipe_methods uhci_device_intr_methods = { 335 uhci_device_intr_transfer, 336 uhci_device_intr_start, 337 uhci_device_intr_abort, 338 uhci_device_intr_close, 339 uhci_device_clear_toggle, 340 uhci_device_intr_done, 341 }; 342 343 struct usbd_pipe_methods uhci_device_bulk_methods = { 344 uhci_device_bulk_transfer, 345 uhci_device_bulk_start, 346 uhci_device_bulk_abort, 347 uhci_device_bulk_close, 348 uhci_device_clear_toggle, 349 uhci_device_bulk_done, 350 }; 351 352 struct usbd_pipe_methods uhci_device_isoc_methods = { 353 uhci_device_isoc_transfer, 354 uhci_device_isoc_start, 355 uhci_device_isoc_abort, 356 uhci_device_isoc_close, 357 uhci_noop, 358 uhci_device_isoc_done, 359 }; 360 361 #define uhci_add_intr_info(sc, ii) \ 362 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 363 #define uhci_del_intr_info(ii) \ 364 LIST_REMOVE((ii), list) 365 366 Static __inline__ uhci_soft_qh_t * 367 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 368 { 369 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 370 371 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 372 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 373 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 374 printf("uhci_find_prev_qh: QH not found\n"); 375 return (NULL); 376 } 377 #endif 378 } 379 return (pqh); 380 } 381 382 void 383 uhci_globalreset(uhci_softc_t *sc) 384 { 385 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 386 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 387 UHCICMD(sc, 0); /* do nothing */ 388 } 389 390 usbd_status 391 uhci_init(uhci_softc_t *sc) 392 { 393 usbd_status err; 394 int i, j; 395 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 396 uhci_soft_td_t *std; 397 398 DPRINTFN(1,("uhci_init: start\n")); 399 400 #ifdef UHCI_DEBUG 401 thesc = sc; 402 403 if (uhcidebug > 2) 404 uhci_dumpregs(sc); 405 #endif 406 407 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 408 uhci_globalreset(sc); /* reset the controller */ 409 uhci_reset(sc); 410 411 /* Allocate and initialize real frame array. */ 412 err = usb_allocmem(&sc->sc_bus, 413 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 414 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 415 if (err) 416 return (err); 417 sc->sc_pframes = KERNADDR(&sc->sc_dma); 418 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 419 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 420 421 /* 422 * Allocate a TD, inactive, that hangs from the last QH. 423 * This is to avoid a bug in the PIIX that makes it run berserk 424 * otherwise. 425 */ 426 std = uhci_alloc_std(sc); 427 if (std == NULL) 428 return (USBD_NOMEM); 429 std->link.std = NULL; 430 std->td.td_link = htole32(UHCI_PTR_T); 431 std->td.td_status = htole32(0); /* inactive */ 432 std->td.td_token = htole32(0); 433 std->td.td_buffer = htole32(0); 434 435 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 436 lsqh = uhci_alloc_sqh(sc); 437 if (lsqh == NULL) 438 return (USBD_NOMEM); 439 lsqh->hlink = NULL; 440 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 441 lsqh->elink = std; 442 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 443 sc->sc_last_qh = lsqh; 444 445 /* Allocate the dummy QH where bulk traffic will be queued. */ 446 bsqh = uhci_alloc_sqh(sc); 447 if (bsqh == NULL) 448 return (USBD_NOMEM); 449 bsqh->hlink = lsqh; 450 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 451 bsqh->elink = NULL; 452 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 453 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 454 455 /* Allocate dummy QH where high speed control traffic will be queued. */ 456 chsqh = uhci_alloc_sqh(sc); 457 if (chsqh == NULL) 458 return (USBD_NOMEM); 459 chsqh->hlink = bsqh; 460 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 461 chsqh->elink = NULL; 462 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 463 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 464 465 /* Allocate dummy QH where control traffic will be queued. */ 466 clsqh = uhci_alloc_sqh(sc); 467 if (clsqh == NULL) 468 return (USBD_NOMEM); 469 clsqh->hlink = bsqh; 470 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 471 clsqh->elink = NULL; 472 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 473 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 474 475 /* 476 * Make all (virtual) frame list pointers point to the interrupt 477 * queue heads and the interrupt queue heads at the control 478 * queue head and point the physical frame list to the virtual. 479 */ 480 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 481 std = uhci_alloc_std(sc); 482 sqh = uhci_alloc_sqh(sc); 483 if (std == NULL || sqh == NULL) 484 return (USBD_NOMEM); 485 std->link.sqh = sqh; 486 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 487 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 488 std->td.td_token = htole32(0); 489 std->td.td_buffer = htole32(0); 490 sqh->hlink = clsqh; 491 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 492 sqh->elink = NULL; 493 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 494 sc->sc_vframes[i].htd = std; 495 sc->sc_vframes[i].etd = std; 496 sc->sc_vframes[i].hqh = sqh; 497 sc->sc_vframes[i].eqh = sqh; 498 for (j = i; 499 j < UHCI_FRAMELIST_COUNT; 500 j += UHCI_VFRAMELIST_COUNT) 501 sc->sc_pframes[j] = htole32(std->physaddr); 502 } 503 504 LIST_INIT(&sc->sc_intrhead); 505 506 SIMPLEQ_INIT(&sc->sc_free_xfers); 507 508 usb_callout_init(sc->sc_poll_handle); 509 510 /* Set up the bus struct. */ 511 sc->sc_bus.methods = &uhci_bus_methods; 512 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 513 514 #if defined(__NetBSD__) || defined(__OpenBSD__) 515 sc->sc_suspend = PWR_RESUME; 516 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 517 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 518 #endif 519 520 DPRINTFN(1,("uhci_init: enabling\n")); 521 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 522 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 523 524 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 525 526 return (uhci_run(sc, 1)); /* and here we go... */ 527 } 528 529 #if defined(__NetBSD__) || defined(__OpenBSD__) 530 int 531 uhci_activate(device_ptr_t self, enum devact act) 532 { 533 struct uhci_softc *sc = (struct uhci_softc *)self; 534 int rv = 0; 535 536 switch (act) { 537 case DVACT_ACTIVATE: 538 return (EOPNOTSUPP); 539 break; 540 541 case DVACT_DEACTIVATE: 542 if (sc->sc_child != NULL) 543 rv = config_deactivate(sc->sc_child); 544 break; 545 } 546 return (rv); 547 } 548 549 int 550 uhci_detach(struct uhci_softc *sc, int flags) 551 { 552 usbd_xfer_handle xfer; 553 int rv = 0; 554 555 if (sc->sc_child != NULL) 556 rv = config_detach(sc->sc_child, flags); 557 558 if (rv != 0) 559 return (rv); 560 561 #if defined(__NetBSD__) || defined(__OpenBSD__) 562 powerhook_disestablish(sc->sc_powerhook); 563 shutdownhook_disestablish(sc->sc_shutdownhook); 564 #endif 565 566 /* Free all xfers associated with this HC. */ 567 for (;;) { 568 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 569 if (xfer == NULL) 570 break; 571 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 572 free(xfer, M_USB); 573 } 574 575 /* XXX free other data structures XXX */ 576 577 return (rv); 578 } 579 #endif 580 581 usbd_status 582 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 583 { 584 struct uhci_softc *sc = (struct uhci_softc *)bus; 585 u_int32_t n; 586 587 /* 588 * XXX 589 * Since we are allocating a buffer we can assume that we will 590 * need TDs for it. Since we don't want to allocate those from 591 * an interrupt context, we allocate them here and free them again. 592 * This is no guarantee that we'll get the TDs next time... 593 */ 594 n = size / 8; 595 if (n > 16) { 596 u_int32_t i; 597 uhci_soft_td_t **stds; 598 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 599 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 600 M_WAITOK|M_ZERO); 601 for(i=0; i < n; i++) 602 stds[i] = uhci_alloc_std(sc); 603 for(i=0; i < n; i++) 604 if (stds[i] != NULL) 605 uhci_free_std(sc, stds[i]); 606 free(stds, M_TEMP); 607 } 608 609 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 610 } 611 612 void 613 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 614 { 615 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 616 } 617 618 usbd_xfer_handle 619 uhci_allocx(struct usbd_bus *bus) 620 { 621 struct uhci_softc *sc = (struct uhci_softc *)bus; 622 usbd_xfer_handle xfer; 623 624 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 625 if (xfer != NULL) { 626 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 627 #ifdef DIAGNOSTIC 628 if (xfer->busy_free != XFER_FREE) { 629 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 630 xfer->busy_free); 631 } 632 #endif 633 } else { 634 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 635 } 636 if (xfer != NULL) { 637 memset(xfer, 0, sizeof (struct uhci_xfer)); 638 UXFER(xfer)->iinfo.sc = sc; 639 #ifdef DIAGNOSTIC 640 UXFER(xfer)->iinfo.isdone = 1; 641 xfer->busy_free = XFER_BUSY; 642 #endif 643 } 644 return (xfer); 645 } 646 647 void 648 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 649 { 650 struct uhci_softc *sc = (struct uhci_softc *)bus; 651 652 #ifdef DIAGNOSTIC 653 if (xfer->busy_free != XFER_BUSY) { 654 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 655 xfer->busy_free); 656 return; 657 } 658 xfer->busy_free = XFER_FREE; 659 if (!UXFER(xfer)->iinfo.isdone) { 660 printf("uhci_freex: !isdone\n"); 661 return; 662 } 663 #endif 664 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 665 } 666 667 /* 668 * Shut down the controller when the system is going down. 669 */ 670 void 671 uhci_shutdown(void *v) 672 { 673 uhci_softc_t *sc = v; 674 675 DPRINTF(("uhci_shutdown: stopping the HC\n")); 676 uhci_run(sc, 0); /* stop the controller */ 677 } 678 679 /* 680 * Handle suspend/resume. 681 * 682 * We need to switch to polling mode here, because this routine is 683 * called from an interrupt context. This is all right since we 684 * are almost suspended anyway. 685 */ 686 void 687 uhci_power(int why, void *v) 688 { 689 uhci_softc_t *sc = v; 690 int cmd; 691 int s; 692 693 s = splhardusb(); 694 cmd = UREAD2(sc, UHCI_CMD); 695 696 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 697 sc, why, sc->sc_suspend, cmd)); 698 699 switch (why) { 700 case PWR_SUSPEND: 701 case PWR_STANDBY: 702 #ifdef UHCI_DEBUG 703 if (uhcidebug > 2) 704 uhci_dumpregs(sc); 705 #endif 706 if (sc->sc_intr_xfer != NULL) 707 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 708 sc->sc_intr_xfer); 709 sc->sc_bus.use_polling++; 710 uhci_run(sc, 0); /* stop the controller */ 711 712 /* save some state if BIOS doesn't */ 713 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 714 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 715 716 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 717 718 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 719 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 720 sc->sc_suspend = why; 721 sc->sc_bus.use_polling--; 722 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 723 break; 724 case PWR_RESUME: 725 #ifdef DIAGNOSTIC 726 if (sc->sc_suspend == PWR_RESUME) 727 printf("uhci_power: weird, resume without suspend.\n"); 728 #endif 729 sc->sc_bus.use_polling++; 730 sc->sc_suspend = why; 731 if (cmd & UHCI_CMD_RS) 732 uhci_run(sc, 0); /* in case BIOS has started it */ 733 734 /* restore saved state */ 735 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 736 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 737 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 738 739 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 740 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 741 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 742 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 743 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 744 uhci_run(sc, 1); /* and start traffic again */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 746 sc->sc_bus.use_polling--; 747 if (sc->sc_intr_xfer != NULL) 748 usb_callout(sc->sc_poll_handle, sc->sc_ival, 749 uhci_poll_hub, sc->sc_intr_xfer); 750 #ifdef UHCI_DEBUG 751 if (uhcidebug > 2) 752 uhci_dumpregs(sc); 753 #endif 754 break; 755 case PWR_SOFTSUSPEND: 756 case PWR_SOFTSTANDBY: 757 case PWR_SOFTRESUME: 758 break; 759 } 760 splx(s); 761 } 762 763 #ifdef UHCI_DEBUG 764 Static void 765 uhci_dumpregs(uhci_softc_t *sc) 766 { 767 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 768 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 769 USBDEVNAME(sc->sc_bus.bdev), 770 UREAD2(sc, UHCI_CMD), 771 UREAD2(sc, UHCI_STS), 772 UREAD2(sc, UHCI_INTR), 773 UREAD2(sc, UHCI_FRNUM), 774 UREAD4(sc, UHCI_FLBASEADDR), 775 UREAD1(sc, UHCI_SOF), 776 UREAD2(sc, UHCI_PORTSC1), 777 UREAD2(sc, UHCI_PORTSC2))); 778 } 779 780 void 781 uhci_dump_td(uhci_soft_td_t *p) 782 { 783 char sbuf[128], sbuf2[128]; 784 785 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 786 "token=0x%08lx buffer=0x%08lx\n", 787 p, (long)p->physaddr, 788 (long)le32toh(p->td.td_link), 789 (long)le32toh(p->td.td_status), 790 (long)le32toh(p->td.td_token), 791 (long)le32toh(p->td.td_buffer))); 792 793 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 794 sbuf, sizeof(sbuf)); 795 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 796 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 797 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 798 sbuf2, sizeof(sbuf2)); 799 800 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 801 "D=%d,maxlen=%d\n", sbuf, sbuf2, 802 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 803 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 804 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 805 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 806 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 807 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 808 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 809 } 810 811 void 812 uhci_dump_qh(uhci_soft_qh_t *sqh) 813 { 814 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 815 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 816 le32toh(sqh->qh.qh_elink))); 817 } 818 819 820 #if 1 821 void 822 uhci_dump(void) 823 { 824 uhci_dump_all(thesc); 825 } 826 #endif 827 828 void 829 uhci_dump_all(uhci_softc_t *sc) 830 { 831 uhci_dumpregs(sc); 832 printf("intrs=%d\n", sc->sc_bus.no_intrs); 833 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 834 uhci_dump_qh(sc->sc_lctl_start); 835 } 836 837 838 void 839 uhci_dump_qhs(uhci_soft_qh_t *sqh) 840 { 841 uhci_dump_qh(sqh); 842 843 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 844 * Traverses sideways first, then down. 845 * 846 * QH1 847 * QH2 848 * No QH 849 * TD2.1 850 * TD2.2 851 * TD1.1 852 * etc. 853 * 854 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 855 */ 856 857 858 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 859 uhci_dump_qhs(sqh->hlink); 860 else 861 DPRINTF(("No QH\n")); 862 863 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 864 uhci_dump_tds(sqh->elink); 865 else 866 DPRINTF(("No TD\n")); 867 } 868 869 void 870 uhci_dump_tds(uhci_soft_td_t *std) 871 { 872 uhci_soft_td_t *td; 873 874 for(td = std; td != NULL; td = td->link.std) { 875 uhci_dump_td(td); 876 877 /* Check whether the link pointer in this TD marks 878 * the link pointer as end of queue. This avoids 879 * printing the free list in case the queue/TD has 880 * already been moved there (seatbelt). 881 */ 882 if (le32toh(td->td.td_link) & UHCI_PTR_T || 883 le32toh(td->td.td_link) == 0) 884 break; 885 } 886 } 887 888 Static void 889 uhci_dump_ii(uhci_intr_info_t *ii) 890 { 891 usbd_pipe_handle pipe; 892 usb_endpoint_descriptor_t *ed; 893 usbd_device_handle dev; 894 895 #ifdef DIAGNOSTIC 896 #define DONE ii->isdone 897 #else 898 #define DONE 0 899 #endif 900 if (ii == NULL) { 901 printf("ii NULL\n"); 902 return; 903 } 904 if (ii->xfer == NULL) { 905 printf("ii %p: done=%d xfer=NULL\n", 906 ii, DONE); 907 return; 908 } 909 pipe = ii->xfer->pipe; 910 if (pipe == NULL) { 911 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 912 ii, DONE, ii->xfer); 913 return; 914 } 915 if (pipe->endpoint == NULL) { 916 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 917 ii, DONE, ii->xfer, pipe); 918 return; 919 } 920 if (pipe->device == NULL) { 921 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 922 ii, DONE, ii->xfer, pipe); 923 return; 924 } 925 ed = pipe->endpoint->edesc; 926 dev = pipe->device; 927 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 928 ii, DONE, ii->xfer, dev, 929 UGETW(dev->ddesc.idVendor), 930 UGETW(dev->ddesc.idProduct), 931 dev->address, pipe, 932 ed->bEndpointAddress, ed->bmAttributes); 933 #undef DONE 934 } 935 936 void uhci_dump_iis(struct uhci_softc *sc); 937 void 938 uhci_dump_iis(struct uhci_softc *sc) 939 { 940 uhci_intr_info_t *ii; 941 942 printf("intr_info list:\n"); 943 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 944 uhci_dump_ii(ii); 945 } 946 947 void iidump(void); 948 void iidump(void) { uhci_dump_iis(thesc); } 949 950 #endif 951 952 /* 953 * This routine is executed periodically and simulates interrupts 954 * from the root controller interrupt pipe for port status change. 955 */ 956 void 957 uhci_poll_hub(void *addr) 958 { 959 usbd_xfer_handle xfer = addr; 960 usbd_pipe_handle pipe = xfer->pipe; 961 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 962 int s; 963 u_char *p; 964 965 DPRINTFN(20, ("uhci_poll_hub\n")); 966 967 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 968 969 p = KERNADDR(&xfer->dmabuf); 970 p[0] = 0; 971 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 972 p[0] |= 1<<1; 973 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 974 p[0] |= 1<<2; 975 if (p[0] == 0) 976 /* No change, try again in a while */ 977 return; 978 979 xfer->actlen = 1; 980 xfer->status = USBD_NORMAL_COMPLETION; 981 s = splusb(); 982 xfer->device->bus->intr_context++; 983 usb_transfer_complete(xfer); 984 xfer->device->bus->intr_context--; 985 splx(s); 986 } 987 988 void 989 uhci_root_intr_done(usbd_xfer_handle xfer) 990 { 991 } 992 993 void 994 uhci_root_ctrl_done(usbd_xfer_handle xfer) 995 { 996 } 997 998 /* 999 * Let the last QH loop back to the high speed control transfer QH. 1000 * This is what intel calls "bandwidth reclamation" and improves 1001 * USB performance a lot for some devices. 1002 * If we are already looping, just count it. 1003 */ 1004 void 1005 uhci_add_loop(uhci_softc_t *sc) { 1006 #ifdef UHCI_DEBUG 1007 if (uhcinoloop) 1008 return; 1009 #endif 1010 if (++sc->sc_loops == 1) { 1011 DPRINTFN(5,("uhci_start_loop: add\n")); 1012 /* Note, we don't loop back the soft pointer. */ 1013 sc->sc_last_qh->qh.qh_hlink = 1014 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1015 } 1016 } 1017 1018 void 1019 uhci_rem_loop(uhci_softc_t *sc) { 1020 #ifdef UHCI_DEBUG 1021 if (uhcinoloop) 1022 return; 1023 #endif 1024 if (--sc->sc_loops == 0) { 1025 DPRINTFN(5,("uhci_end_loop: remove\n")); 1026 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1027 } 1028 } 1029 1030 /* Add high speed control QH, called at splusb(). */ 1031 void 1032 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1033 { 1034 uhci_soft_qh_t *eqh; 1035 1036 SPLUSBCHECK; 1037 1038 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1039 eqh = sc->sc_hctl_end; 1040 sqh->hlink = eqh->hlink; 1041 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1042 eqh->hlink = sqh; 1043 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1044 sc->sc_hctl_end = sqh; 1045 #ifdef UHCI_CTL_LOOP 1046 uhci_add_loop(sc); 1047 #endif 1048 } 1049 1050 /* Remove high speed control QH, called at splusb(). */ 1051 void 1052 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1053 { 1054 uhci_soft_qh_t *pqh; 1055 1056 SPLUSBCHECK; 1057 1058 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1059 #ifdef UHCI_CTL_LOOP 1060 uhci_rem_loop(sc); 1061 #endif 1062 /* 1063 * The T bit should be set in the elink of the QH so that the HC 1064 * doesn't follow the pointer. This condition may fail if the 1065 * the transferred packet was short so that the QH still points 1066 * at the last used TD. 1067 * In this case we set the T bit and wait a little for the HC 1068 * to stop looking at the TD. 1069 */ 1070 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1071 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1072 delay(UHCI_QH_REMOVE_DELAY); 1073 } 1074 1075 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1076 pqh->hlink = sqh->hlink; 1077 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1078 delay(UHCI_QH_REMOVE_DELAY); 1079 if (sc->sc_hctl_end == sqh) 1080 sc->sc_hctl_end = pqh; 1081 } 1082 1083 /* Add low speed control QH, called at splusb(). */ 1084 void 1085 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1086 { 1087 uhci_soft_qh_t *eqh; 1088 1089 SPLUSBCHECK; 1090 1091 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1092 eqh = sc->sc_lctl_end; 1093 sqh->hlink = eqh->hlink; 1094 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1095 eqh->hlink = sqh; 1096 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1097 sc->sc_lctl_end = sqh; 1098 } 1099 1100 /* Remove low speed control QH, called at splusb(). */ 1101 void 1102 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1103 { 1104 uhci_soft_qh_t *pqh; 1105 1106 SPLUSBCHECK; 1107 1108 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1109 /* See comment in uhci_remove_hs_ctrl() */ 1110 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1111 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1112 delay(UHCI_QH_REMOVE_DELAY); 1113 } 1114 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1115 pqh->hlink = sqh->hlink; 1116 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1117 delay(UHCI_QH_REMOVE_DELAY); 1118 if (sc->sc_lctl_end == sqh) 1119 sc->sc_lctl_end = pqh; 1120 } 1121 1122 /* Add bulk QH, called at splusb(). */ 1123 void 1124 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1125 { 1126 uhci_soft_qh_t *eqh; 1127 1128 SPLUSBCHECK; 1129 1130 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1131 eqh = sc->sc_bulk_end; 1132 sqh->hlink = eqh->hlink; 1133 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1134 eqh->hlink = sqh; 1135 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1136 sc->sc_bulk_end = sqh; 1137 uhci_add_loop(sc); 1138 } 1139 1140 /* Remove bulk QH, called at splusb(). */ 1141 void 1142 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1143 { 1144 uhci_soft_qh_t *pqh; 1145 1146 SPLUSBCHECK; 1147 1148 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1149 uhci_rem_loop(sc); 1150 /* See comment in uhci_remove_hs_ctrl() */ 1151 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1152 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1153 delay(UHCI_QH_REMOVE_DELAY); 1154 } 1155 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1156 pqh->hlink = sqh->hlink; 1157 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1158 delay(UHCI_QH_REMOVE_DELAY); 1159 if (sc->sc_bulk_end == sqh) 1160 sc->sc_bulk_end = pqh; 1161 } 1162 1163 Static int uhci_intr1(uhci_softc_t *); 1164 1165 int 1166 uhci_intr(void *arg) 1167 { 1168 uhci_softc_t *sc = arg; 1169 1170 if (sc->sc_dying) 1171 return (0); 1172 1173 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1174 if (sc->sc_bus.use_polling) { 1175 #ifdef DIAGNOSTIC 1176 printf("uhci_intr: ignored interrupt while polling\n"); 1177 #endif 1178 return (0); 1179 } 1180 return (uhci_intr1(sc)); 1181 } 1182 1183 int 1184 uhci_intr1(uhci_softc_t *sc) 1185 { 1186 int status; 1187 int ack; 1188 1189 #ifdef UHCI_DEBUG 1190 if (uhcidebug > 15) { 1191 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1192 uhci_dumpregs(sc); 1193 } 1194 #endif 1195 1196 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1197 if (status == 0) /* The interrupt was not for us. */ 1198 return (0); 1199 1200 if (sc->sc_suspend != PWR_RESUME) { 1201 printf("%s: interrupt while not operating ignored\n", 1202 USBDEVNAME(sc->sc_bus.bdev)); 1203 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1204 return (0); 1205 } 1206 1207 ack = 0; 1208 if (status & UHCI_STS_USBINT) 1209 ack |= UHCI_STS_USBINT; 1210 if (status & UHCI_STS_USBEI) 1211 ack |= UHCI_STS_USBEI; 1212 if (status & UHCI_STS_RD) { 1213 ack |= UHCI_STS_RD; 1214 #ifdef UHCI_DEBUG 1215 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1216 #endif 1217 } 1218 if (status & UHCI_STS_HSE) { 1219 ack |= UHCI_STS_HSE; 1220 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1221 } 1222 if (status & UHCI_STS_HCPE) { 1223 ack |= UHCI_STS_HCPE; 1224 printf("%s: host controller process error\n", 1225 USBDEVNAME(sc->sc_bus.bdev)); 1226 } 1227 if (status & UHCI_STS_HCH) { 1228 /* no acknowledge needed */ 1229 if (!sc->sc_dying) { 1230 printf("%s: host controller halted\n", 1231 USBDEVNAME(sc->sc_bus.bdev)); 1232 #ifdef UHCI_DEBUG 1233 uhci_dump_all(sc); 1234 #endif 1235 } 1236 sc->sc_dying = 1; 1237 } 1238 1239 if (!ack) 1240 return (0); /* nothing to acknowledge */ 1241 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1242 1243 sc->sc_bus.no_intrs++; 1244 usb_schedsoftintr(&sc->sc_bus); 1245 1246 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1247 1248 return (1); 1249 } 1250 1251 void 1252 uhci_softintr(void *v) 1253 { 1254 uhci_softc_t *sc = v; 1255 uhci_intr_info_t *ii; 1256 1257 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1258 sc->sc_bus.intr_context)); 1259 1260 sc->sc_bus.intr_context++; 1261 1262 /* 1263 * Interrupts on UHCI really suck. When the host controller 1264 * interrupts because a transfer is completed there is no 1265 * way of knowing which transfer it was. You can scan down 1266 * the TDs and QHs of the previous frame to limit the search, 1267 * but that assumes that the interrupt was not delayed by more 1268 * than 1 ms, which may not always be true (e.g. after debug 1269 * output on a slow console). 1270 * We scan all interrupt descriptors to see if any have 1271 * completed. 1272 */ 1273 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1274 uhci_check_intr(sc, ii); 1275 1276 if (sc->sc_softwake) { 1277 sc->sc_softwake = 0; 1278 wakeup(&sc->sc_softwake); 1279 } 1280 1281 sc->sc_bus.intr_context--; 1282 } 1283 1284 /* Check for an interrupt. */ 1285 void 1286 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1287 { 1288 uhci_soft_td_t *std, *lstd; 1289 u_int32_t status; 1290 1291 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1292 #ifdef DIAGNOSTIC 1293 if (ii == NULL) { 1294 printf("uhci_check_intr: no ii? %p\n", ii); 1295 return; 1296 } 1297 #endif 1298 if (ii->xfer->status == USBD_CANCELLED || 1299 ii->xfer->status == USBD_TIMEOUT) { 1300 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1301 return; 1302 } 1303 1304 if (ii->stdstart == NULL) 1305 return; 1306 lstd = ii->stdend; 1307 #ifdef DIAGNOSTIC 1308 if (lstd == NULL) { 1309 printf("uhci_check_intr: std==0\n"); 1310 return; 1311 } 1312 #endif 1313 /* 1314 * If the last TD is still active we need to check whether there 1315 * is a an error somewhere in the middle, or whether there was a 1316 * short packet (SPD and not ACTIVE). 1317 */ 1318 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1319 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1320 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1321 status = le32toh(std->td.td_status); 1322 /* If there's an active TD the xfer isn't done. */ 1323 if (status & UHCI_TD_ACTIVE) 1324 break; 1325 /* Any kind of error makes the xfer done. */ 1326 if (status & UHCI_TD_STALLED) 1327 goto done; 1328 /* We want short packets, and it is short: it's done */ 1329 if ((status & UHCI_TD_SPD) && 1330 UHCI_TD_GET_ACTLEN(status) < 1331 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1332 goto done; 1333 } 1334 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1335 ii, ii->stdstart)); 1336 return; 1337 } 1338 done: 1339 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1340 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1341 uhci_idone(ii); 1342 } 1343 1344 /* Called at splusb() */ 1345 void 1346 uhci_idone(uhci_intr_info_t *ii) 1347 { 1348 usbd_xfer_handle xfer = ii->xfer; 1349 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1350 uhci_soft_td_t *std; 1351 u_int32_t status = 0, nstatus; 1352 int actlen; 1353 1354 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1355 #ifdef DIAGNOSTIC 1356 { 1357 int s = splhigh(); 1358 if (ii->isdone) { 1359 splx(s); 1360 #ifdef UHCI_DEBUG 1361 printf("uhci_idone: ii is done!\n "); 1362 uhci_dump_ii(ii); 1363 #else 1364 printf("uhci_idone: ii=%p is done!\n", ii); 1365 #endif 1366 return; 1367 } 1368 ii->isdone = 1; 1369 splx(s); 1370 } 1371 #endif 1372 1373 if (xfer->nframes != 0) { 1374 /* Isoc transfer, do things differently. */ 1375 uhci_soft_td_t **stds = upipe->u.iso.stds; 1376 int i, n, nframes, len; 1377 1378 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1379 1380 nframes = xfer->nframes; 1381 actlen = 0; 1382 n = UXFER(xfer)->curframe; 1383 for (i = 0; i < nframes; i++) { 1384 std = stds[n]; 1385 #ifdef UHCI_DEBUG 1386 if (uhcidebug > 5) { 1387 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1388 uhci_dump_td(std); 1389 } 1390 #endif 1391 if (++n >= UHCI_VFRAMELIST_COUNT) 1392 n = 0; 1393 status = le32toh(std->td.td_status); 1394 len = UHCI_TD_GET_ACTLEN(status); 1395 xfer->frlengths[i] = len; 1396 actlen += len; 1397 } 1398 upipe->u.iso.inuse -= nframes; 1399 xfer->actlen = actlen; 1400 xfer->status = USBD_NORMAL_COMPLETION; 1401 goto end; 1402 } 1403 1404 #ifdef UHCI_DEBUG 1405 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1406 ii, xfer, upipe)); 1407 if (uhcidebug > 10) 1408 uhci_dump_tds(ii->stdstart); 1409 #endif 1410 1411 /* The transfer is done, compute actual length and status. */ 1412 actlen = 0; 1413 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1414 nstatus = le32toh(std->td.td_status); 1415 if (nstatus & UHCI_TD_ACTIVE) 1416 break; 1417 1418 status = nstatus; 1419 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1420 UHCI_TD_PID_SETUP) 1421 actlen += UHCI_TD_GET_ACTLEN(status); 1422 } 1423 /* If there are left over TDs we need to update the toggle. */ 1424 if (std != NULL) 1425 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1426 1427 status &= UHCI_TD_ERROR; 1428 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1429 actlen, status)); 1430 xfer->actlen = actlen; 1431 if (status != 0) { 1432 #ifdef UHCI_DEBUG 1433 char sbuf[128]; 1434 1435 bitmask_snprintf((u_int32_t)status, 1436 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1437 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1438 sbuf, sizeof(sbuf)); 1439 1440 DPRINTFN((status == UHCI_TD_STALLED)*10, 1441 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1442 "status 0x%s\n", 1443 xfer->pipe->device->address, 1444 xfer->pipe->endpoint->edesc->bEndpointAddress, 1445 sbuf)); 1446 #endif 1447 1448 if (status == UHCI_TD_STALLED) 1449 xfer->status = USBD_STALLED; 1450 else 1451 xfer->status = USBD_IOERROR; /* more info XXX */ 1452 } else { 1453 xfer->status = USBD_NORMAL_COMPLETION; 1454 } 1455 1456 end: 1457 usb_transfer_complete(xfer); 1458 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1459 } 1460 1461 /* 1462 * Called when a request does not complete. 1463 */ 1464 void 1465 uhci_timeout(void *addr) 1466 { 1467 uhci_intr_info_t *ii = addr; 1468 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1469 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1470 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1471 1472 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1473 1474 if (sc->sc_dying) { 1475 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1476 return; 1477 } 1478 1479 /* Execute the abort in a process context. */ 1480 usb_init_task(&uxfer->abort_task, uhci_timeout_task, addr); 1481 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1482 } 1483 1484 void 1485 uhci_timeout_task(void *addr) 1486 { 1487 usbd_xfer_handle xfer = addr; 1488 int s; 1489 1490 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1491 1492 s = splusb(); 1493 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1494 splx(s); 1495 } 1496 1497 /* 1498 * Wait here until controller claims to have an interrupt. 1499 * Then call uhci_intr and return. Use timeout to avoid waiting 1500 * too long. 1501 * Only used during boot when interrupts are not enabled yet. 1502 */ 1503 void 1504 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1505 { 1506 int timo = xfer->timeout; 1507 uhci_intr_info_t *ii; 1508 1509 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1510 1511 xfer->status = USBD_IN_PROGRESS; 1512 for (; timo >= 0; timo--) { 1513 usb_delay_ms(&sc->sc_bus, 1); 1514 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1515 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1516 uhci_intr1(sc); 1517 if (xfer->status != USBD_IN_PROGRESS) 1518 return; 1519 } 1520 } 1521 1522 /* Timeout */ 1523 DPRINTF(("uhci_waitintr: timeout\n")); 1524 for (ii = LIST_FIRST(&sc->sc_intrhead); 1525 ii != NULL && ii->xfer != xfer; 1526 ii = LIST_NEXT(ii, list)) 1527 ; 1528 #ifdef DIAGNOSTIC 1529 if (ii == NULL) 1530 panic("uhci_waitintr: lost intr_info\n"); 1531 #endif 1532 uhci_idone(ii); 1533 } 1534 1535 void 1536 uhci_poll(struct usbd_bus *bus) 1537 { 1538 uhci_softc_t *sc = (uhci_softc_t *)bus; 1539 1540 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1541 uhci_intr1(sc); 1542 } 1543 1544 void 1545 uhci_reset(uhci_softc_t *sc) 1546 { 1547 int n; 1548 1549 UHCICMD(sc, UHCI_CMD_HCRESET); 1550 /* The reset bit goes low when the controller is done. */ 1551 for (n = 0; n < UHCI_RESET_TIMEOUT && 1552 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1553 usb_delay_ms(&sc->sc_bus, 1); 1554 if (n >= UHCI_RESET_TIMEOUT) 1555 printf("%s: controller did not reset\n", 1556 USBDEVNAME(sc->sc_bus.bdev)); 1557 } 1558 1559 usbd_status 1560 uhci_run(uhci_softc_t *sc, int run) 1561 { 1562 int s, n, running; 1563 u_int16_t cmd; 1564 1565 run = run != 0; 1566 s = splhardusb(); 1567 DPRINTF(("uhci_run: setting run=%d\n", run)); 1568 cmd = UREAD2(sc, UHCI_CMD); 1569 if (run) 1570 cmd |= UHCI_CMD_RS; 1571 else 1572 cmd &= ~UHCI_CMD_RS; 1573 UHCICMD(sc, cmd); 1574 for(n = 0; n < 10; n++) { 1575 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1576 /* return when we've entered the state we want */ 1577 if (run == running) { 1578 splx(s); 1579 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1580 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1581 return (USBD_NORMAL_COMPLETION); 1582 } 1583 usb_delay_ms(&sc->sc_bus, 1); 1584 } 1585 splx(s); 1586 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1587 run ? "start" : "stop"); 1588 return (USBD_IOERROR); 1589 } 1590 1591 /* 1592 * Memory management routines. 1593 * uhci_alloc_std allocates TDs 1594 * uhci_alloc_sqh allocates QHs 1595 * These two routines do their own free list management, 1596 * partly for speed, partly because allocating DMAable memory 1597 * has page size granularaity so much memory would be wasted if 1598 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1599 */ 1600 1601 uhci_soft_td_t * 1602 uhci_alloc_std(uhci_softc_t *sc) 1603 { 1604 uhci_soft_td_t *std; 1605 usbd_status err; 1606 int i, offs; 1607 usb_dma_t dma; 1608 1609 if (sc->sc_freetds == NULL) { 1610 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1611 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1612 UHCI_TD_ALIGN, &dma); 1613 if (err) 1614 return (0); 1615 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1616 offs = i * UHCI_STD_SIZE; 1617 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1618 std->physaddr = DMAADDR(&dma) + offs; 1619 std->link.std = sc->sc_freetds; 1620 sc->sc_freetds = std; 1621 } 1622 } 1623 std = sc->sc_freetds; 1624 sc->sc_freetds = std->link.std; 1625 memset(&std->td, 0, sizeof(uhci_td_t)); 1626 return std; 1627 } 1628 1629 void 1630 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1631 { 1632 #ifdef DIAGNOSTIC 1633 #define TD_IS_FREE 0x12345678 1634 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1635 printf("uhci_free_std: freeing free TD %p\n", std); 1636 return; 1637 } 1638 std->td.td_token = htole32(TD_IS_FREE); 1639 #endif 1640 std->link.std = sc->sc_freetds; 1641 sc->sc_freetds = std; 1642 } 1643 1644 uhci_soft_qh_t * 1645 uhci_alloc_sqh(uhci_softc_t *sc) 1646 { 1647 uhci_soft_qh_t *sqh; 1648 usbd_status err; 1649 int i, offs; 1650 usb_dma_t dma; 1651 1652 if (sc->sc_freeqhs == NULL) { 1653 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1654 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1655 UHCI_QH_ALIGN, &dma); 1656 if (err) 1657 return (0); 1658 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1659 offs = i * UHCI_SQH_SIZE; 1660 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1661 sqh->physaddr = DMAADDR(&dma) + offs; 1662 sqh->hlink = sc->sc_freeqhs; 1663 sc->sc_freeqhs = sqh; 1664 } 1665 } 1666 sqh = sc->sc_freeqhs; 1667 sc->sc_freeqhs = sqh->hlink; 1668 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1669 return (sqh); 1670 } 1671 1672 void 1673 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1674 { 1675 sqh->hlink = sc->sc_freeqhs; 1676 sc->sc_freeqhs = sqh; 1677 } 1678 1679 void 1680 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1681 uhci_soft_td_t *stdend) 1682 { 1683 uhci_soft_td_t *p; 1684 1685 for (; std != stdend; std = p) { 1686 p = std->link.std; 1687 uhci_free_std(sc, std); 1688 } 1689 } 1690 1691 usbd_status 1692 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1693 int rd, u_int16_t flags, usb_dma_t *dma, 1694 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1695 { 1696 uhci_soft_td_t *p, *lastp; 1697 uhci_physaddr_t lastlink; 1698 int i, ntd, l, tog, maxp; 1699 u_int32_t status; 1700 int addr = upipe->pipe.device->address; 1701 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1702 1703 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1704 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1705 upipe->pipe.device->speed, flags)); 1706 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1707 if (maxp == 0) { 1708 printf("uhci_alloc_std_chain: maxp=0\n"); 1709 return (USBD_INVAL); 1710 } 1711 ntd = (len + maxp - 1) / maxp; 1712 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1713 ntd++; 1714 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1715 if (ntd == 0) { 1716 *sp = *ep = 0; 1717 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1718 return (USBD_NORMAL_COMPLETION); 1719 } 1720 tog = upipe->nexttoggle; 1721 if (ntd % 2 == 0) 1722 tog ^= 1; 1723 upipe->nexttoggle = tog ^ 1; 1724 lastp = NULL; 1725 lastlink = UHCI_PTR_T; 1726 ntd--; 1727 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1728 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1729 status |= UHCI_TD_LS; 1730 if (flags & USBD_SHORT_XFER_OK) 1731 status |= UHCI_TD_SPD; 1732 for (i = ntd; i >= 0; i--) { 1733 p = uhci_alloc_std(sc); 1734 if (p == NULL) { 1735 uhci_free_std_chain(sc, lastp, NULL); 1736 return (USBD_NOMEM); 1737 } 1738 p->link.std = lastp; 1739 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1740 lastp = p; 1741 lastlink = p->physaddr; 1742 p->td.td_status = htole32(status); 1743 if (i == ntd) { 1744 /* last TD */ 1745 l = len % maxp; 1746 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1747 l = maxp; 1748 *ep = p; 1749 } else 1750 l = maxp; 1751 p->td.td_token = 1752 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1753 UHCI_TD_OUT(l, endpt, addr, tog)); 1754 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1755 tog ^= 1; 1756 } 1757 *sp = lastp; 1758 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1759 upipe->nexttoggle)); 1760 return (USBD_NORMAL_COMPLETION); 1761 } 1762 1763 void 1764 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1765 { 1766 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1767 upipe->nexttoggle = 0; 1768 } 1769 1770 void 1771 uhci_noop(usbd_pipe_handle pipe) 1772 { 1773 } 1774 1775 usbd_status 1776 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1777 { 1778 usbd_status err; 1779 1780 /* Insert last in queue. */ 1781 err = usb_insert_transfer(xfer); 1782 if (err) 1783 return (err); 1784 1785 /* 1786 * Pipe isn't running (otherwise err would be USBD_INPROG), 1787 * so start it first. 1788 */ 1789 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1790 } 1791 1792 usbd_status 1793 uhci_device_bulk_start(usbd_xfer_handle xfer) 1794 { 1795 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1796 usbd_device_handle dev = upipe->pipe.device; 1797 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1798 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1799 uhci_soft_td_t *data, *dataend; 1800 uhci_soft_qh_t *sqh; 1801 usbd_status err; 1802 int len, isread, endpt; 1803 int s; 1804 1805 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1806 xfer, xfer->length, xfer->flags)); 1807 1808 if (sc->sc_dying) 1809 return (USBD_IOERROR); 1810 1811 #ifdef DIAGNOSTIC 1812 if (xfer->rqflags & URQ_REQUEST) 1813 panic("uhci_device_bulk_transfer: a request\n"); 1814 #endif 1815 1816 len = xfer->length; 1817 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1818 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1819 sqh = upipe->u.bulk.sqh; 1820 1821 upipe->u.bulk.isread = isread; 1822 upipe->u.bulk.length = len; 1823 1824 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1825 &xfer->dmabuf, &data, &dataend); 1826 if (err) 1827 return (err); 1828 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1829 1830 #ifdef UHCI_DEBUG 1831 if (uhcidebug > 8) { 1832 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1833 uhci_dump_tds(data); 1834 } 1835 #endif 1836 1837 /* Set up interrupt info. */ 1838 ii->xfer = xfer; 1839 ii->stdstart = data; 1840 ii->stdend = dataend; 1841 #ifdef DIAGNOSTIC 1842 if (!ii->isdone) { 1843 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1844 } 1845 ii->isdone = 0; 1846 #endif 1847 1848 sqh->elink = data; 1849 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1850 1851 s = splusb(); 1852 uhci_add_bulk(sc, sqh); 1853 uhci_add_intr_info(sc, ii); 1854 1855 if (xfer->timeout && !sc->sc_bus.use_polling) { 1856 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1857 uhci_timeout, ii); 1858 } 1859 xfer->status = USBD_IN_PROGRESS; 1860 splx(s); 1861 1862 #ifdef UHCI_DEBUG 1863 if (uhcidebug > 10) { 1864 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1865 uhci_dump_tds(data); 1866 } 1867 #endif 1868 1869 if (sc->sc_bus.use_polling) 1870 uhci_waitintr(sc, xfer); 1871 1872 return (USBD_IN_PROGRESS); 1873 } 1874 1875 /* Abort a device bulk request. */ 1876 void 1877 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1878 { 1879 DPRINTF(("uhci_device_bulk_abort:\n")); 1880 uhci_abort_xfer(xfer, USBD_CANCELLED); 1881 } 1882 1883 /* 1884 * Abort a device request. 1885 * If this routine is called at splusb() it guarantees that the request 1886 * will be removed from the hardware scheduling and that the callback 1887 * for it will be called with USBD_CANCELLED status. 1888 * It's impossible to guarantee that the requested transfer will not 1889 * have happened since the hardware runs concurrently. 1890 * If the transaction has already happened we rely on the ordinary 1891 * interrupt processing to process it. 1892 */ 1893 void 1894 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1895 { 1896 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1897 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1898 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1899 uhci_soft_td_t *std; 1900 int s; 1901 1902 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1903 1904 if (sc->sc_dying) { 1905 /* If we're dying, just do the software part. */ 1906 s = splusb(); 1907 xfer->status = status; /* make software ignore it */ 1908 usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); 1909 usb_transfer_complete(xfer); 1910 splx(s); 1911 } 1912 1913 if (xfer->device->bus->intr_context || !curproc) 1914 panic("ohci_abort_xfer: not in process context\n"); 1915 1916 /* 1917 * Step 1: Make interrupt routine and hardware ignore xfer. 1918 */ 1919 s = splusb(); 1920 xfer->status = status; /* make software ignore it */ 1921 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1922 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1923 for (std = ii->stdstart; std != NULL; std = std->link.std) 1924 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1925 splx(s); 1926 1927 /* 1928 * Step 2: Wait until we know hardware has finished any possible 1929 * use of the xfer. Also make sure the soft interrupt routine 1930 * has run. 1931 */ 1932 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1933 s = splusb(); 1934 sc->sc_softwake = 1; 1935 usb_schedsoftintr(&sc->sc_bus); 1936 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1937 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1938 splx(s); 1939 1940 /* 1941 * Step 3: Execute callback. 1942 */ 1943 xfer->hcpriv = ii; 1944 1945 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1946 s = splusb(); 1947 #ifdef DIAGNOSTIC 1948 ii->isdone = 1; 1949 #endif 1950 usb_transfer_complete(xfer); 1951 splx(s); 1952 } 1953 1954 /* Close a device bulk pipe. */ 1955 void 1956 uhci_device_bulk_close(usbd_pipe_handle pipe) 1957 { 1958 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1959 usbd_device_handle dev = upipe->pipe.device; 1960 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1961 1962 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1963 } 1964 1965 usbd_status 1966 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1967 { 1968 usbd_status err; 1969 1970 /* Insert last in queue. */ 1971 err = usb_insert_transfer(xfer); 1972 if (err) 1973 return (err); 1974 1975 /* 1976 * Pipe isn't running (otherwise err would be USBD_INPROG), 1977 * so start it first. 1978 */ 1979 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1980 } 1981 1982 usbd_status 1983 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1984 { 1985 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1986 usbd_status err; 1987 1988 if (sc->sc_dying) 1989 return (USBD_IOERROR); 1990 1991 #ifdef DIAGNOSTIC 1992 if (!(xfer->rqflags & URQ_REQUEST)) 1993 panic("uhci_device_ctrl_transfer: not a request\n"); 1994 #endif 1995 1996 err = uhci_device_request(xfer); 1997 if (err) 1998 return (err); 1999 2000 if (sc->sc_bus.use_polling) 2001 uhci_waitintr(sc, xfer); 2002 return (USBD_IN_PROGRESS); 2003 } 2004 2005 usbd_status 2006 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2007 { 2008 usbd_status err; 2009 2010 /* Insert last in queue. */ 2011 err = usb_insert_transfer(xfer); 2012 if (err) 2013 return (err); 2014 2015 /* 2016 * Pipe isn't running (otherwise err would be USBD_INPROG), 2017 * so start it first. 2018 */ 2019 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2020 } 2021 2022 usbd_status 2023 uhci_device_intr_start(usbd_xfer_handle xfer) 2024 { 2025 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2026 usbd_device_handle dev = upipe->pipe.device; 2027 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2028 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2029 uhci_soft_td_t *data, *dataend; 2030 uhci_soft_qh_t *sqh; 2031 usbd_status err; 2032 int i, s; 2033 2034 if (sc->sc_dying) 2035 return (USBD_IOERROR); 2036 2037 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2038 xfer, xfer->length, xfer->flags)); 2039 2040 #ifdef DIAGNOSTIC 2041 if (xfer->rqflags & URQ_REQUEST) 2042 panic("uhci_device_intr_transfer: a request\n"); 2043 #endif 2044 2045 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2046 &xfer->dmabuf, &data, &dataend); 2047 if (err) 2048 return (err); 2049 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2050 2051 #ifdef UHCI_DEBUG 2052 if (uhcidebug > 10) { 2053 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2054 uhci_dump_tds(data); 2055 uhci_dump_qh(upipe->u.intr.qhs[0]); 2056 } 2057 #endif 2058 2059 s = splusb(); 2060 /* Set up interrupt info. */ 2061 ii->xfer = xfer; 2062 ii->stdstart = data; 2063 ii->stdend = dataend; 2064 #ifdef DIAGNOSTIC 2065 if (!ii->isdone) { 2066 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2067 } 2068 ii->isdone = 0; 2069 #endif 2070 2071 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2072 upipe->u.intr.qhs[0])); 2073 for (i = 0; i < upipe->u.intr.npoll; i++) { 2074 sqh = upipe->u.intr.qhs[i]; 2075 sqh->elink = data; 2076 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2077 } 2078 uhci_add_intr_info(sc, ii); 2079 xfer->status = USBD_IN_PROGRESS; 2080 splx(s); 2081 2082 #ifdef UHCI_DEBUG 2083 if (uhcidebug > 10) { 2084 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2085 uhci_dump_tds(data); 2086 uhci_dump_qh(upipe->u.intr.qhs[0]); 2087 } 2088 #endif 2089 2090 return (USBD_IN_PROGRESS); 2091 } 2092 2093 /* Abort a device control request. */ 2094 void 2095 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2096 { 2097 DPRINTF(("uhci_device_ctrl_abort:\n")); 2098 uhci_abort_xfer(xfer, USBD_CANCELLED); 2099 } 2100 2101 /* Close a device control pipe. */ 2102 void 2103 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2104 { 2105 } 2106 2107 /* Abort a device interrupt request. */ 2108 void 2109 uhci_device_intr_abort(usbd_xfer_handle xfer) 2110 { 2111 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2112 if (xfer->pipe->intrxfer == xfer) { 2113 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2114 xfer->pipe->intrxfer = NULL; 2115 } 2116 uhci_abort_xfer(xfer, USBD_CANCELLED); 2117 } 2118 2119 /* Close a device interrupt pipe. */ 2120 void 2121 uhci_device_intr_close(usbd_pipe_handle pipe) 2122 { 2123 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2124 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2125 int i, npoll; 2126 int s; 2127 2128 /* Unlink descriptors from controller data structures. */ 2129 npoll = upipe->u.intr.npoll; 2130 s = splusb(); 2131 for (i = 0; i < npoll; i++) 2132 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2133 splx(s); 2134 2135 /* 2136 * We now have to wait for any activity on the physical 2137 * descriptors to stop. 2138 */ 2139 usb_delay_ms(&sc->sc_bus, 2); 2140 2141 for(i = 0; i < npoll; i++) 2142 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2143 free(upipe->u.intr.qhs, M_USBHC); 2144 2145 /* XXX free other resources */ 2146 } 2147 2148 usbd_status 2149 uhci_device_request(usbd_xfer_handle xfer) 2150 { 2151 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2152 usb_device_request_t *req = &xfer->request; 2153 usbd_device_handle dev = upipe->pipe.device; 2154 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2155 int addr = dev->address; 2156 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2157 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2158 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2159 uhci_soft_qh_t *sqh; 2160 int len; 2161 u_int32_t ls; 2162 usbd_status err; 2163 int isread; 2164 int s; 2165 2166 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2167 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2168 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2169 UGETW(req->wIndex), UGETW(req->wLength), 2170 addr, endpt)); 2171 2172 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2173 isread = req->bmRequestType & UT_READ; 2174 len = UGETW(req->wLength); 2175 2176 setup = upipe->u.ctl.setup; 2177 stat = upipe->u.ctl.stat; 2178 sqh = upipe->u.ctl.sqh; 2179 2180 /* Set up data transaction */ 2181 if (len != 0) { 2182 upipe->nexttoggle = 1; 2183 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2184 &xfer->dmabuf, &data, &dataend); 2185 if (err) 2186 return (err); 2187 next = data; 2188 dataend->link.std = stat; 2189 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2190 } else { 2191 next = stat; 2192 } 2193 upipe->u.ctl.length = len; 2194 2195 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2196 2197 setup->link.std = next; 2198 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2199 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2200 UHCI_TD_ACTIVE); 2201 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2202 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2203 2204 stat->link.std = NULL; 2205 stat->td.td_link = htole32(UHCI_PTR_T); 2206 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2207 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2208 stat->td.td_token = 2209 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2210 UHCI_TD_IN (0, endpt, addr, 1)); 2211 stat->td.td_buffer = htole32(0); 2212 2213 #ifdef UHCI_DEBUG 2214 if (uhcidebug > 10) { 2215 DPRINTF(("uhci_device_request: before transfer\n")); 2216 uhci_dump_tds(setup); 2217 } 2218 #endif 2219 2220 /* Set up interrupt info. */ 2221 ii->xfer = xfer; 2222 ii->stdstart = setup; 2223 ii->stdend = stat; 2224 #ifdef DIAGNOSTIC 2225 if (!ii->isdone) { 2226 printf("uhci_device_request: not done, ii=%p\n", ii); 2227 } 2228 ii->isdone = 0; 2229 #endif 2230 2231 sqh->elink = setup; 2232 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2233 2234 s = splusb(); 2235 if (dev->speed == USB_SPEED_LOW) 2236 uhci_add_ls_ctrl(sc, sqh); 2237 else 2238 uhci_add_hs_ctrl(sc, sqh); 2239 uhci_add_intr_info(sc, ii); 2240 #ifdef UHCI_DEBUG 2241 if (uhcidebug > 12) { 2242 uhci_soft_td_t *std; 2243 uhci_soft_qh_t *xqh; 2244 uhci_soft_qh_t *sxqh; 2245 int maxqh = 0; 2246 uhci_physaddr_t link; 2247 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2248 for (std = sc->sc_vframes[0].htd, link = 0; 2249 (link & UHCI_PTR_QH) == 0; 2250 std = std->link.std) { 2251 link = le32toh(std->td.td_link); 2252 uhci_dump_td(std); 2253 } 2254 sxqh = (uhci_soft_qh_t *)std; 2255 uhci_dump_qh(sxqh); 2256 for (xqh = sxqh; 2257 xqh != NULL; 2258 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2259 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2260 uhci_dump_qh(xqh); 2261 } 2262 DPRINTF(("Enqueued QH:\n")); 2263 uhci_dump_qh(sqh); 2264 uhci_dump_tds(sqh->elink); 2265 } 2266 #endif 2267 if (xfer->timeout && !sc->sc_bus.use_polling) { 2268 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2269 uhci_timeout, ii); 2270 } 2271 xfer->status = USBD_IN_PROGRESS; 2272 splx(s); 2273 2274 return (USBD_NORMAL_COMPLETION); 2275 } 2276 2277 usbd_status 2278 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2279 { 2280 usbd_status err; 2281 2282 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2283 2284 /* Put it on our queue, */ 2285 err = usb_insert_transfer(xfer); 2286 2287 /* bail out on error, */ 2288 if (err && err != USBD_IN_PROGRESS) 2289 return (err); 2290 2291 /* XXX should check inuse here */ 2292 2293 /* insert into schedule, */ 2294 uhci_device_isoc_enter(xfer); 2295 2296 /* and start if the pipe wasn't running */ 2297 if (!err) 2298 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2299 2300 return (err); 2301 } 2302 2303 void 2304 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2305 { 2306 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2307 usbd_device_handle dev = upipe->pipe.device; 2308 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2309 struct iso *iso = &upipe->u.iso; 2310 uhci_soft_td_t *std; 2311 u_int32_t buf, len, status; 2312 int s, i, next, nframes; 2313 2314 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2315 "nframes=%d\n", 2316 iso->inuse, iso->next, xfer, xfer->nframes)); 2317 2318 if (sc->sc_dying) 2319 return; 2320 2321 if (xfer->status == USBD_IN_PROGRESS) { 2322 /* This request has already been entered into the frame list */ 2323 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2324 /* XXX */ 2325 } 2326 2327 #ifdef DIAGNOSTIC 2328 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2329 printf("uhci_device_isoc_enter: overflow!\n"); 2330 #endif 2331 2332 next = iso->next; 2333 if (next == -1) { 2334 /* Not in use yet, schedule it a few frames ahead. */ 2335 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2336 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2337 } 2338 2339 xfer->status = USBD_IN_PROGRESS; 2340 UXFER(xfer)->curframe = next; 2341 2342 buf = DMAADDR(&xfer->dmabuf); 2343 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2344 UHCI_TD_ACTIVE | 2345 UHCI_TD_IOS); 2346 nframes = xfer->nframes; 2347 s = splusb(); 2348 for (i = 0; i < nframes; i++) { 2349 std = iso->stds[next]; 2350 if (++next >= UHCI_VFRAMELIST_COUNT) 2351 next = 0; 2352 len = xfer->frlengths[i]; 2353 std->td.td_buffer = htole32(buf); 2354 if (i == nframes - 1) 2355 status |= UHCI_TD_IOC; 2356 std->td.td_status = htole32(status); 2357 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2358 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2359 #ifdef UHCI_DEBUG 2360 if (uhcidebug > 5) { 2361 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2362 uhci_dump_td(std); 2363 } 2364 #endif 2365 buf += len; 2366 } 2367 iso->next = next; 2368 iso->inuse += xfer->nframes; 2369 2370 splx(s); 2371 } 2372 2373 usbd_status 2374 uhci_device_isoc_start(usbd_xfer_handle xfer) 2375 { 2376 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2377 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2378 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2379 uhci_soft_td_t *end; 2380 int s, i; 2381 2382 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2383 2384 if (sc->sc_dying) 2385 return (USBD_IOERROR); 2386 2387 #ifdef DIAGNOSTIC 2388 if (xfer->status != USBD_IN_PROGRESS) 2389 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2390 #endif 2391 2392 /* Find the last TD */ 2393 i = UXFER(xfer)->curframe + xfer->nframes; 2394 if (i >= UHCI_VFRAMELIST_COUNT) 2395 i -= UHCI_VFRAMELIST_COUNT; 2396 end = upipe->u.iso.stds[i]; 2397 2398 #ifdef DIAGNOSTIC 2399 if (end == NULL) { 2400 printf("uhci_device_isoc_start: end == NULL\n"); 2401 return (USBD_INVAL); 2402 } 2403 #endif 2404 2405 s = splusb(); 2406 2407 /* Set up interrupt info. */ 2408 ii->xfer = xfer; 2409 ii->stdstart = end; 2410 ii->stdend = end; 2411 #ifdef DIAGNOSTIC 2412 if (!ii->isdone) 2413 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2414 ii->isdone = 0; 2415 #endif 2416 uhci_add_intr_info(sc, ii); 2417 2418 splx(s); 2419 2420 return (USBD_IN_PROGRESS); 2421 } 2422 2423 void 2424 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2425 { 2426 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2427 uhci_soft_td_t **stds = upipe->u.iso.stds; 2428 uhci_soft_td_t *std; 2429 int i, n, s, nframes, maxlen, len; 2430 2431 s = splusb(); 2432 2433 /* Transfer is already done. */ 2434 if (xfer->status != USBD_NOT_STARTED && 2435 xfer->status != USBD_IN_PROGRESS) { 2436 splx(s); 2437 return; 2438 } 2439 2440 /* Give xfer the requested abort code. */ 2441 xfer->status = USBD_CANCELLED; 2442 2443 /* make hardware ignore it, */ 2444 nframes = xfer->nframes; 2445 n = UXFER(xfer)->curframe; 2446 maxlen = 0; 2447 for (i = 0; i < nframes; i++) { 2448 std = stds[n]; 2449 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2450 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2451 if (len > maxlen) 2452 maxlen = len; 2453 if (++n >= UHCI_VFRAMELIST_COUNT) 2454 n = 0; 2455 } 2456 2457 /* and wait until we are sure the hardware has finished. */ 2458 delay(maxlen); 2459 2460 #ifdef DIAGNOSTIC 2461 UXFER(xfer)->iinfo.isdone = 1; 2462 #endif 2463 /* Run callback and remove from interrupt list. */ 2464 usb_transfer_complete(xfer); 2465 2466 splx(s); 2467 } 2468 2469 void 2470 uhci_device_isoc_close(usbd_pipe_handle pipe) 2471 { 2472 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2473 usbd_device_handle dev = upipe->pipe.device; 2474 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2475 uhci_soft_td_t *std, *vstd; 2476 struct iso *iso; 2477 int i, s; 2478 2479 /* 2480 * Make sure all TDs are marked as inactive. 2481 * Wait for completion. 2482 * Unschedule. 2483 * Deallocate. 2484 */ 2485 iso = &upipe->u.iso; 2486 2487 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2488 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2489 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2490 2491 s = splusb(); 2492 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2493 std = iso->stds[i]; 2494 for (vstd = sc->sc_vframes[i].htd; 2495 vstd != NULL && vstd->link.std != std; 2496 vstd = vstd->link.std) 2497 ; 2498 if (vstd == NULL) { 2499 /*panic*/ 2500 printf("uhci_device_isoc_close: %p not found\n", std); 2501 splx(s); 2502 return; 2503 } 2504 vstd->link = std->link; 2505 vstd->td.td_link = std->td.td_link; 2506 uhci_free_std(sc, std); 2507 } 2508 splx(s); 2509 2510 free(iso->stds, M_USBHC); 2511 } 2512 2513 usbd_status 2514 uhci_setup_isoc(usbd_pipe_handle pipe) 2515 { 2516 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2517 usbd_device_handle dev = upipe->pipe.device; 2518 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2519 int addr = upipe->pipe.device->address; 2520 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2521 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2522 uhci_soft_td_t *std, *vstd; 2523 u_int32_t token; 2524 struct iso *iso; 2525 int i, s; 2526 2527 iso = &upipe->u.iso; 2528 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2529 M_USBHC, M_WAITOK); 2530 2531 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2532 UHCI_TD_OUT(0, endpt, addr, 0); 2533 2534 /* Allocate the TDs and mark as inactive; */ 2535 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2536 std = uhci_alloc_std(sc); 2537 if (std == 0) 2538 goto bad; 2539 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2540 std->td.td_token = htole32(token); 2541 iso->stds[i] = std; 2542 } 2543 2544 /* Insert TDs into schedule. */ 2545 s = splusb(); 2546 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2547 std = iso->stds[i]; 2548 vstd = sc->sc_vframes[i].htd; 2549 std->link = vstd->link; 2550 std->td.td_link = vstd->td.td_link; 2551 vstd->link.std = std; 2552 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2553 } 2554 splx(s); 2555 2556 iso->next = -1; 2557 iso->inuse = 0; 2558 2559 return (USBD_NORMAL_COMPLETION); 2560 2561 bad: 2562 while (--i >= 0) 2563 uhci_free_std(sc, iso->stds[i]); 2564 free(iso->stds, M_USBHC); 2565 return (USBD_NOMEM); 2566 } 2567 2568 void 2569 uhci_device_isoc_done(usbd_xfer_handle xfer) 2570 { 2571 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2572 2573 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2574 2575 if (ii->xfer != xfer) 2576 /* Not on interrupt list, ignore it. */ 2577 return; 2578 2579 #ifdef DIAGNOSTIC 2580 if (xfer->busy_free != XFER_BUSY) { 2581 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2582 xfer, xfer->busy_free); 2583 return; 2584 } 2585 2586 if (ii->stdend == NULL) { 2587 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2588 #ifdef UHCI_DEBUG 2589 uhci_dump_ii(ii); 2590 #endif 2591 return; 2592 } 2593 #endif 2594 2595 /* Turn off the interrupt since it is active even if the TD is not. */ 2596 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2597 2598 uhci_del_intr_info(ii); /* remove from active list */ 2599 } 2600 2601 void 2602 uhci_device_intr_done(usbd_xfer_handle xfer) 2603 { 2604 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2605 uhci_softc_t *sc = ii->sc; 2606 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2607 uhci_soft_qh_t *sqh; 2608 int i, npoll; 2609 2610 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2611 2612 npoll = upipe->u.intr.npoll; 2613 for(i = 0; i < npoll; i++) { 2614 sqh = upipe->u.intr.qhs[i]; 2615 sqh->elink = NULL; 2616 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2617 } 2618 uhci_free_std_chain(sc, ii->stdstart, NULL); 2619 2620 /* XXX Wasteful. */ 2621 if (xfer->pipe->repeat) { 2622 uhci_soft_td_t *data, *dataend; 2623 2624 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2625 2626 /* This alloc cannot fail since we freed the chain above. */ 2627 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2628 &xfer->dmabuf, &data, &dataend); 2629 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2630 2631 #ifdef UHCI_DEBUG 2632 if (uhcidebug > 10) { 2633 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2634 uhci_dump_tds(data); 2635 uhci_dump_qh(upipe->u.intr.qhs[0]); 2636 } 2637 #endif 2638 2639 ii->stdstart = data; 2640 ii->stdend = dataend; 2641 #ifdef DIAGNOSTIC 2642 if (!ii->isdone) { 2643 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2644 } 2645 ii->isdone = 0; 2646 #endif 2647 for (i = 0; i < npoll; i++) { 2648 sqh = upipe->u.intr.qhs[i]; 2649 sqh->elink = data; 2650 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2651 } 2652 xfer->status = USBD_IN_PROGRESS; 2653 /* The ii is already on the examined list, just leave it. */ 2654 } else { 2655 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2656 uhci_del_intr_info(ii); 2657 } 2658 } 2659 2660 /* Deallocate request data structures */ 2661 void 2662 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2663 { 2664 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2665 uhci_softc_t *sc = ii->sc; 2666 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2667 2668 #ifdef DIAGNOSTIC 2669 if (!(xfer->rqflags & URQ_REQUEST)) 2670 panic("uhci_ctrl_done: not a request\n"); 2671 #endif 2672 2673 uhci_del_intr_info(ii); /* remove from active list */ 2674 2675 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2676 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2677 else 2678 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2679 2680 if (upipe->u.ctl.length != 0) 2681 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2682 2683 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2684 } 2685 2686 /* Deallocate request data structures */ 2687 void 2688 uhci_device_bulk_done(usbd_xfer_handle xfer) 2689 { 2690 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2691 uhci_softc_t *sc = ii->sc; 2692 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2693 2694 uhci_del_intr_info(ii); /* remove from active list */ 2695 2696 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2697 2698 uhci_free_std_chain(sc, ii->stdstart, NULL); 2699 2700 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2701 } 2702 2703 /* Add interrupt QH, called with vflock. */ 2704 void 2705 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2706 { 2707 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2708 uhci_soft_qh_t *eqh; 2709 2710 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2711 2712 eqh = vf->eqh; 2713 sqh->hlink = eqh->hlink; 2714 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2715 eqh->hlink = sqh; 2716 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2717 vf->eqh = sqh; 2718 vf->bandwidth++; 2719 } 2720 2721 /* Remove interrupt QH. */ 2722 void 2723 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2724 { 2725 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2726 uhci_soft_qh_t *pqh; 2727 2728 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2729 2730 /* See comment in uhci_remove_ctrl() */ 2731 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2732 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2733 delay(UHCI_QH_REMOVE_DELAY); 2734 } 2735 2736 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2737 pqh->hlink = sqh->hlink; 2738 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2739 delay(UHCI_QH_REMOVE_DELAY); 2740 if (vf->eqh == sqh) 2741 vf->eqh = pqh; 2742 vf->bandwidth--; 2743 } 2744 2745 usbd_status 2746 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2747 { 2748 uhci_soft_qh_t *sqh; 2749 int i, npoll, s; 2750 u_int bestbw, bw, bestoffs, offs; 2751 2752 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2753 if (ival == 0) { 2754 printf("uhci_setintr: 0 interval\n"); 2755 return (USBD_INVAL); 2756 } 2757 2758 if (ival > UHCI_VFRAMELIST_COUNT) 2759 ival = UHCI_VFRAMELIST_COUNT; 2760 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2761 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2762 2763 upipe->u.intr.npoll = npoll; 2764 upipe->u.intr.qhs = 2765 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2766 2767 /* 2768 * Figure out which offset in the schedule that has most 2769 * bandwidth left over. 2770 */ 2771 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2772 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2773 for (bw = i = 0; i < npoll; i++) 2774 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2775 if (bw < bestbw) { 2776 bestbw = bw; 2777 bestoffs = offs; 2778 } 2779 } 2780 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2781 2782 for(i = 0; i < npoll; i++) { 2783 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2784 sqh->elink = NULL; 2785 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2786 sqh->pos = MOD(i * ival + bestoffs); 2787 } 2788 #undef MOD 2789 2790 s = splusb(); 2791 /* Enter QHs into the controller data structures. */ 2792 for(i = 0; i < npoll; i++) 2793 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2794 splx(s); 2795 2796 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2797 return (USBD_NORMAL_COMPLETION); 2798 } 2799 2800 /* Open a new pipe. */ 2801 usbd_status 2802 uhci_open(usbd_pipe_handle pipe) 2803 { 2804 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2805 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2806 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2807 usbd_status err; 2808 int ival; 2809 2810 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2811 pipe, pipe->device->address, 2812 ed->bEndpointAddress, sc->sc_addr)); 2813 2814 upipe->aborting = 0; 2815 upipe->nexttoggle = 0; 2816 2817 if (pipe->device->address == sc->sc_addr) { 2818 switch (ed->bEndpointAddress) { 2819 case USB_CONTROL_ENDPOINT: 2820 pipe->methods = &uhci_root_ctrl_methods; 2821 break; 2822 case UE_DIR_IN | UHCI_INTR_ENDPT: 2823 pipe->methods = &uhci_root_intr_methods; 2824 break; 2825 default: 2826 return (USBD_INVAL); 2827 } 2828 } else { 2829 switch (ed->bmAttributes & UE_XFERTYPE) { 2830 case UE_CONTROL: 2831 pipe->methods = &uhci_device_ctrl_methods; 2832 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2833 if (upipe->u.ctl.sqh == NULL) 2834 goto bad; 2835 upipe->u.ctl.setup = uhci_alloc_std(sc); 2836 if (upipe->u.ctl.setup == NULL) { 2837 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2838 goto bad; 2839 } 2840 upipe->u.ctl.stat = uhci_alloc_std(sc); 2841 if (upipe->u.ctl.stat == NULL) { 2842 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2843 uhci_free_std(sc, upipe->u.ctl.setup); 2844 goto bad; 2845 } 2846 err = usb_allocmem(&sc->sc_bus, 2847 sizeof(usb_device_request_t), 2848 0, &upipe->u.ctl.reqdma); 2849 if (err) { 2850 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2851 uhci_free_std(sc, upipe->u.ctl.setup); 2852 uhci_free_std(sc, upipe->u.ctl.stat); 2853 goto bad; 2854 } 2855 break; 2856 case UE_INTERRUPT: 2857 pipe->methods = &uhci_device_intr_methods; 2858 ival = pipe->interval; 2859 if (ival == USBD_DEFAULT_INTERVAL) 2860 ival = ed->bInterval; 2861 return (uhci_device_setintr(sc, upipe, ival)); 2862 case UE_ISOCHRONOUS: 2863 pipe->methods = &uhci_device_isoc_methods; 2864 return (uhci_setup_isoc(pipe)); 2865 case UE_BULK: 2866 pipe->methods = &uhci_device_bulk_methods; 2867 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2868 if (upipe->u.bulk.sqh == NULL) 2869 goto bad; 2870 break; 2871 } 2872 } 2873 return (USBD_NORMAL_COMPLETION); 2874 2875 bad: 2876 return (USBD_NOMEM); 2877 } 2878 2879 /* 2880 * Data structures and routines to emulate the root hub. 2881 */ 2882 usb_device_descriptor_t uhci_devd = { 2883 USB_DEVICE_DESCRIPTOR_SIZE, 2884 UDESC_DEVICE, /* type */ 2885 {0x00, 0x01}, /* USB version */ 2886 UDCLASS_HUB, /* class */ 2887 UDSUBCLASS_HUB, /* subclass */ 2888 UDPROTO_FSHUB, /* protocol */ 2889 64, /* max packet */ 2890 {0},{0},{0x00,0x01}, /* device id */ 2891 1,2,0, /* string indicies */ 2892 1 /* # of configurations */ 2893 }; 2894 2895 usb_config_descriptor_t uhci_confd = { 2896 USB_CONFIG_DESCRIPTOR_SIZE, 2897 UDESC_CONFIG, 2898 {USB_CONFIG_DESCRIPTOR_SIZE + 2899 USB_INTERFACE_DESCRIPTOR_SIZE + 2900 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2901 1, 2902 1, 2903 0, 2904 UC_SELF_POWERED, 2905 0 /* max power */ 2906 }; 2907 2908 usb_interface_descriptor_t uhci_ifcd = { 2909 USB_INTERFACE_DESCRIPTOR_SIZE, 2910 UDESC_INTERFACE, 2911 0, 2912 0, 2913 1, 2914 UICLASS_HUB, 2915 UISUBCLASS_HUB, 2916 UIPROTO_FSHUB, 2917 0 2918 }; 2919 2920 usb_endpoint_descriptor_t uhci_endpd = { 2921 USB_ENDPOINT_DESCRIPTOR_SIZE, 2922 UDESC_ENDPOINT, 2923 UE_DIR_IN | UHCI_INTR_ENDPT, 2924 UE_INTERRUPT, 2925 {8}, 2926 255 2927 }; 2928 2929 usb_hub_descriptor_t uhci_hubd_piix = { 2930 USB_HUB_DESCRIPTOR_SIZE, 2931 UDESC_HUB, 2932 2, 2933 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2934 50, /* power on to power good */ 2935 0, 2936 { 0x00 }, /* both ports are removable */ 2937 }; 2938 2939 int 2940 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2941 { 2942 int i; 2943 2944 if (l == 0) 2945 return (0); 2946 p->bLength = 2 * strlen(s) + 2; 2947 if (l == 1) 2948 return (1); 2949 p->bDescriptorType = UDESC_STRING; 2950 l -= 2; 2951 for (i = 0; s[i] && l > 1; i++, l -= 2) 2952 USETW2(p->bString[i], 0, s[i]); 2953 return (2*i+2); 2954 } 2955 2956 /* 2957 * Simulate a hardware hub by handling all the necessary requests. 2958 */ 2959 usbd_status 2960 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2961 { 2962 usbd_status err; 2963 2964 /* Insert last in queue. */ 2965 err = usb_insert_transfer(xfer); 2966 if (err) 2967 return (err); 2968 2969 /* 2970 * Pipe isn't running (otherwise err would be USBD_INPROG), 2971 * so start it first. 2972 */ 2973 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2974 } 2975 2976 usbd_status 2977 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2978 { 2979 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2980 usb_device_request_t *req; 2981 void *buf = NULL; 2982 int port, x; 2983 int s, len, value, index, status, change, l, totlen = 0; 2984 usb_port_status_t ps; 2985 usbd_status err; 2986 2987 if (sc->sc_dying) 2988 return (USBD_IOERROR); 2989 2990 #ifdef DIAGNOSTIC 2991 if (!(xfer->rqflags & URQ_REQUEST)) 2992 panic("uhci_root_ctrl_transfer: not a request\n"); 2993 #endif 2994 req = &xfer->request; 2995 2996 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2997 req->bmRequestType, req->bRequest)); 2998 2999 len = UGETW(req->wLength); 3000 value = UGETW(req->wValue); 3001 index = UGETW(req->wIndex); 3002 3003 if (len != 0) 3004 buf = KERNADDR(&xfer->dmabuf); 3005 3006 #define C(x,y) ((x) | ((y) << 8)) 3007 switch(C(req->bRequest, req->bmRequestType)) { 3008 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3009 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3010 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3011 /* 3012 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3013 * for the integrated root hub. 3014 */ 3015 break; 3016 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3017 if (len > 0) { 3018 *(u_int8_t *)buf = sc->sc_conf; 3019 totlen = 1; 3020 } 3021 break; 3022 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3023 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3024 switch(value >> 8) { 3025 case UDESC_DEVICE: 3026 if ((value & 0xff) != 0) { 3027 err = USBD_IOERROR; 3028 goto ret; 3029 } 3030 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3031 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3032 memcpy(buf, &uhci_devd, l); 3033 break; 3034 case UDESC_CONFIG: 3035 if ((value & 0xff) != 0) { 3036 err = USBD_IOERROR; 3037 goto ret; 3038 } 3039 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3040 memcpy(buf, &uhci_confd, l); 3041 buf = (char *)buf + l; 3042 len -= l; 3043 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3044 totlen += l; 3045 memcpy(buf, &uhci_ifcd, l); 3046 buf = (char *)buf + l; 3047 len -= l; 3048 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3049 totlen += l; 3050 memcpy(buf, &uhci_endpd, l); 3051 break; 3052 case UDESC_STRING: 3053 if (len == 0) 3054 break; 3055 *(u_int8_t *)buf = 0; 3056 totlen = 1; 3057 switch (value & 0xff) { 3058 case 1: /* Vendor */ 3059 totlen = uhci_str(buf, len, sc->sc_vendor); 3060 break; 3061 case 2: /* Product */ 3062 totlen = uhci_str(buf, len, "UHCI root hub"); 3063 break; 3064 } 3065 break; 3066 default: 3067 err = USBD_IOERROR; 3068 goto ret; 3069 } 3070 break; 3071 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3072 if (len > 0) { 3073 *(u_int8_t *)buf = 0; 3074 totlen = 1; 3075 } 3076 break; 3077 case C(UR_GET_STATUS, UT_READ_DEVICE): 3078 if (len > 1) { 3079 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3080 totlen = 2; 3081 } 3082 break; 3083 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3084 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3085 if (len > 1) { 3086 USETW(((usb_status_t *)buf)->wStatus, 0); 3087 totlen = 2; 3088 } 3089 break; 3090 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3091 if (value >= USB_MAX_DEVICES) { 3092 err = USBD_IOERROR; 3093 goto ret; 3094 } 3095 sc->sc_addr = value; 3096 break; 3097 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3098 if (value != 0 && value != 1) { 3099 err = USBD_IOERROR; 3100 goto ret; 3101 } 3102 sc->sc_conf = value; 3103 break; 3104 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3105 break; 3106 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3107 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3108 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3109 err = USBD_IOERROR; 3110 goto ret; 3111 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3112 break; 3113 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3114 break; 3115 /* Hub requests */ 3116 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3117 break; 3118 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3119 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3120 "port=%d feature=%d\n", 3121 index, value)); 3122 if (index == 1) 3123 port = UHCI_PORTSC1; 3124 else if (index == 2) 3125 port = UHCI_PORTSC2; 3126 else { 3127 err = USBD_IOERROR; 3128 goto ret; 3129 } 3130 switch(value) { 3131 case UHF_PORT_ENABLE: 3132 x = URWMASK(UREAD2(sc, port)); 3133 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3134 break; 3135 case UHF_PORT_SUSPEND: 3136 x = URWMASK(UREAD2(sc, port)); 3137 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3138 break; 3139 case UHF_PORT_RESET: 3140 x = URWMASK(UREAD2(sc, port)); 3141 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3142 break; 3143 case UHF_C_PORT_CONNECTION: 3144 x = URWMASK(UREAD2(sc, port)); 3145 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3146 break; 3147 case UHF_C_PORT_ENABLE: 3148 x = URWMASK(UREAD2(sc, port)); 3149 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3150 break; 3151 case UHF_C_PORT_OVER_CURRENT: 3152 x = URWMASK(UREAD2(sc, port)); 3153 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3154 break; 3155 case UHF_C_PORT_RESET: 3156 sc->sc_isreset = 0; 3157 err = USBD_NORMAL_COMPLETION; 3158 goto ret; 3159 case UHF_PORT_CONNECTION: 3160 case UHF_PORT_OVER_CURRENT: 3161 case UHF_PORT_POWER: 3162 case UHF_PORT_LOW_SPEED: 3163 case UHF_C_PORT_SUSPEND: 3164 default: 3165 err = USBD_IOERROR; 3166 goto ret; 3167 } 3168 break; 3169 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3170 if (index == 1) 3171 port = UHCI_PORTSC1; 3172 else if (index == 2) 3173 port = UHCI_PORTSC2; 3174 else { 3175 err = USBD_IOERROR; 3176 goto ret; 3177 } 3178 if (len > 0) { 3179 *(u_int8_t *)buf = 3180 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3181 UHCI_PORTSC_LS_SHIFT; 3182 totlen = 1; 3183 } 3184 break; 3185 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3186 if (value != 0) { 3187 err = USBD_IOERROR; 3188 goto ret; 3189 } 3190 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3191 totlen = l; 3192 memcpy(buf, &uhci_hubd_piix, l); 3193 break; 3194 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3195 if (len != 4) { 3196 err = USBD_IOERROR; 3197 goto ret; 3198 } 3199 memset(buf, 0, len); 3200 totlen = len; 3201 break; 3202 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3203 if (index == 1) 3204 port = UHCI_PORTSC1; 3205 else if (index == 2) 3206 port = UHCI_PORTSC2; 3207 else { 3208 err = USBD_IOERROR; 3209 goto ret; 3210 } 3211 if (len != 4) { 3212 err = USBD_IOERROR; 3213 goto ret; 3214 } 3215 x = UREAD2(sc, port); 3216 status = change = 0; 3217 if (x & UHCI_PORTSC_CCS) 3218 status |= UPS_CURRENT_CONNECT_STATUS; 3219 if (x & UHCI_PORTSC_CSC) 3220 change |= UPS_C_CONNECT_STATUS; 3221 if (x & UHCI_PORTSC_PE) 3222 status |= UPS_PORT_ENABLED; 3223 if (x & UHCI_PORTSC_POEDC) 3224 change |= UPS_C_PORT_ENABLED; 3225 if (x & UHCI_PORTSC_OCI) 3226 status |= UPS_OVERCURRENT_INDICATOR; 3227 if (x & UHCI_PORTSC_OCIC) 3228 change |= UPS_C_OVERCURRENT_INDICATOR; 3229 if (x & UHCI_PORTSC_SUSP) 3230 status |= UPS_SUSPEND; 3231 if (x & UHCI_PORTSC_LSDA) 3232 status |= UPS_LOW_SPEED; 3233 status |= UPS_PORT_POWER; 3234 if (sc->sc_isreset) 3235 change |= UPS_C_PORT_RESET; 3236 USETW(ps.wPortStatus, status); 3237 USETW(ps.wPortChange, change); 3238 l = min(len, sizeof ps); 3239 memcpy(buf, &ps, l); 3240 totlen = l; 3241 break; 3242 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3243 err = USBD_IOERROR; 3244 goto ret; 3245 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3246 break; 3247 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3248 if (index == 1) 3249 port = UHCI_PORTSC1; 3250 else if (index == 2) 3251 port = UHCI_PORTSC2; 3252 else { 3253 err = USBD_IOERROR; 3254 goto ret; 3255 } 3256 switch(value) { 3257 case UHF_PORT_ENABLE: 3258 x = URWMASK(UREAD2(sc, port)); 3259 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3260 break; 3261 case UHF_PORT_SUSPEND: 3262 x = URWMASK(UREAD2(sc, port)); 3263 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3264 break; 3265 case UHF_PORT_RESET: 3266 x = URWMASK(UREAD2(sc, port)); 3267 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3268 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3269 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3270 delay(100); 3271 x = UREAD2(sc, port); 3272 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3273 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3274 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3275 index, UREAD2(sc, port))); 3276 sc->sc_isreset = 1; 3277 break; 3278 case UHF_PORT_POWER: 3279 /* Pretend we turned on power */ 3280 err = USBD_NORMAL_COMPLETION; 3281 goto ret; 3282 case UHF_C_PORT_CONNECTION: 3283 case UHF_C_PORT_ENABLE: 3284 case UHF_C_PORT_OVER_CURRENT: 3285 case UHF_PORT_CONNECTION: 3286 case UHF_PORT_OVER_CURRENT: 3287 case UHF_PORT_LOW_SPEED: 3288 case UHF_C_PORT_SUSPEND: 3289 case UHF_C_PORT_RESET: 3290 default: 3291 err = USBD_IOERROR; 3292 goto ret; 3293 } 3294 break; 3295 default: 3296 err = USBD_IOERROR; 3297 goto ret; 3298 } 3299 xfer->actlen = totlen; 3300 err = USBD_NORMAL_COMPLETION; 3301 ret: 3302 xfer->status = err; 3303 s = splusb(); 3304 usb_transfer_complete(xfer); 3305 splx(s); 3306 return (USBD_IN_PROGRESS); 3307 } 3308 3309 /* Abort a root control request. */ 3310 void 3311 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3312 { 3313 /* Nothing to do, all transfers are synchronous. */ 3314 } 3315 3316 /* Close the root pipe. */ 3317 void 3318 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3319 { 3320 DPRINTF(("uhci_root_ctrl_close\n")); 3321 } 3322 3323 /* Abort a root interrupt request. */ 3324 void 3325 uhci_root_intr_abort(usbd_xfer_handle xfer) 3326 { 3327 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3328 3329 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3330 sc->sc_intr_xfer = NULL; 3331 3332 if (xfer->pipe->intrxfer == xfer) { 3333 DPRINTF(("uhci_root_intr_abort: remove\n")); 3334 xfer->pipe->intrxfer = 0; 3335 } 3336 xfer->status = USBD_CANCELLED; 3337 #ifdef DIAGNOSTIC 3338 UXFER(xfer)->iinfo.isdone = 1; 3339 #endif 3340 usb_transfer_complete(xfer); 3341 } 3342 3343 usbd_status 3344 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3345 { 3346 usbd_status err; 3347 3348 /* Insert last in queue. */ 3349 err = usb_insert_transfer(xfer); 3350 if (err) 3351 return (err); 3352 3353 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3354 * start first 3355 */ 3356 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3357 } 3358 3359 /* Start a transfer on the root interrupt pipe */ 3360 usbd_status 3361 uhci_root_intr_start(usbd_xfer_handle xfer) 3362 { 3363 usbd_pipe_handle pipe = xfer->pipe; 3364 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3365 3366 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3367 xfer, xfer->length, xfer->flags)); 3368 3369 if (sc->sc_dying) 3370 return (USBD_IOERROR); 3371 3372 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3373 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3374 sc->sc_intr_xfer = xfer; 3375 return (USBD_IN_PROGRESS); 3376 } 3377 3378 /* Close the root interrupt pipe. */ 3379 void 3380 uhci_root_intr_close(usbd_pipe_handle pipe) 3381 { 3382 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3383 3384 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3385 sc->sc_intr_xfer = NULL; 3386 DPRINTF(("uhci_root_intr_close\n")); 3387 } 3388
Indexes created Sun Sep 21 20:09:37 GMT 2025