uhci.c revision 1.208.12.3
1 /* $NetBSD: uhci.c,v 1.208.12.3 2007/06/03 13:10:41 itohy Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.172 2006/10/19 01:15:58 iedowse Exp $ */ 3 4 /*- 5 * Copyright (c) 1998, 2004, 2007 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/technology/usb/uhci11d.htm 46 * USB spec: http://www.usb.org/developers/docs/ 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 1.208.12.3 2007/06/03 13:10:41 itohy Exp $"); 53 /* __FBSDID("$FreeBSD: src/sys/dev/usb/uhci.c,v 1.172 2006/10/19 01:15:58 iedowse Exp $"); */ 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/kernel.h> 58 #include <sys/malloc.h> 59 #include <sys/mbuf.h> 60 #if defined(__NetBSD__) || defined(__OpenBSD__) 61 #include <sys/device.h> 62 #include <sys/select.h> 63 #include <sys/extent.h> 64 #include <uvm/uvm_extern.h> 65 #elif defined(__FreeBSD__) 66 #include <sys/endian.h> 67 #include <sys/module.h> 68 #include <sys/bus.h> 69 #include <sys/sysctl.h> 70 #if defined(DIAGNOSTIC) && defined(__i386__) 71 #include <machine/cpu.h> 72 #endif 73 #endif 74 #include <sys/proc.h> 75 #include <sys/queue.h> 76 77 #include <machine/bus.h> 78 #include <machine/endian.h> 79 80 #include <dev/usb/usb.h> 81 #include <dev/usb/usbdi.h> 82 #include <dev/usb/usbdivar.h> 83 #include <dev/usb/usb_mem.h> 84 #include <dev/usb/usb_quirks.h> 85 86 #include <dev/usb/uhcireg.h> 87 #include <dev/usb/uhcivar.h> 88 89 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 90 /*#define UHCI_CTL_LOOP */ 91 92 #if defined(__FreeBSD__) 93 94 #define delay(d) DELAY(d) 95 #endif 96 97 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 98 99 #if defined(__OpenBSD__) 100 struct cfdriver uhci_cd = { 101 NULL, "uhci", DV_DULL 102 }; 103 #endif 104 105 #ifdef USB_DEBUG 106 uhci_softc_t *thesc; 107 #define DPRINTF(x) if (uhcidebug) printf x 108 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 109 int uhcidebug = 0; 110 int uhcinoloop = 0; 111 #ifdef __FreeBSD__ 112 SYSCTL_NODE(_hw_usb, OID_AUTO, uhci, CTLFLAG_RW, 0, "USB uhci"); 113 SYSCTL_INT(_hw_usb_uhci, OID_AUTO, debug, CTLFLAG_RW, 114 &uhcidebug, 0, "uhci debug level"); 115 SYSCTL_INT(_hw_usb_uhci, OID_AUTO, loop, CTLFLAG_RW, 116 &uhcinoloop, 0, "uhci noloop"); 117 #endif 118 #ifndef __NetBSD__ 119 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 120 #endif 121 #else 122 #define DPRINTF(x) 123 #define DPRINTFN(n,x) 124 #endif 125 126 /* 127 * The UHCI controller is little endian, so on big endian machines 128 * the data stored in memory needs to be swapped. 129 */ 130 #if defined(__OpenBSD__) 131 #if BYTE_ORDER == BIG_ENDIAN 132 #define htole32(x) (bswap32(x)) 133 #define le32toh(x) (bswap32(x)) 134 #else 135 #define htole32(x) (x) 136 #define le32toh(x) (x) 137 #endif 138 #endif 139 140 struct uhci_pipe { 141 struct usbd_pipe pipe; 142 int nexttoggle; 143 144 u_char aborting; 145 usbd_xfer_handle abortstart, abortend; 146 147 /* Info needed for different pipe kinds. */ 148 union { 149 /* Control pipe */ 150 struct { 151 uhci_soft_qh_t *sqh; 152 usb_dma_t reqdma; 153 uhci_soft_td_t *setup, *stat; 154 u_int length; 155 } ctl; 156 /* Interrupt pipe */ 157 struct { 158 int npoll; 159 int isread; 160 uhci_soft_qh_t **qhs; 161 } intr; 162 /* Bulk pipe */ 163 struct { 164 uhci_soft_qh_t *sqh; 165 u_int length; 166 int isread; 167 } bulk; 168 /* Iso pipe */ 169 struct iso { 170 uhci_soft_td_t **stds; 171 int next, inuse; 172 } iso; 173 } u; 174 }; 175 176 Static void uhci_globalreset(uhci_softc_t *); 177 Static usbd_status uhci_portreset(uhci_softc_t*, int); 178 Static void uhci_reset(uhci_softc_t *); 179 Static usbd_status uhci_run(uhci_softc_t *, int run); 180 Static usbd_status uhci_grow_std(uhci_softc_t *); 181 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 182 Static uhci_soft_td_t *uhci_alloc_std_norsv(uhci_softc_t *); 183 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 184 Static void uhci_free_std_norsv(uhci_softc_t *, uhci_soft_td_t *); 185 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 186 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 187 Static void uhci_free_desc_chunks(uhci_softc_t *, 188 struct uhci_mdescs *); 189 190 Static void uhci_bufptr_init(union uhci_bufptr *, 191 struct uhci_xfer *); 192 Static void uhci_bufptr_advance(union uhci_bufptr *, int len, 193 int is_mbuf); 194 Static void uhci_bufptr_rd(const union uhci_bufptr *, void *, 195 int len, int is_mbuf); 196 Static void uhci_bufptr_wr(const union uhci_bufptr *p, 197 const void *, int len, int is_mbuf); 198 199 Static void uhci_aux_mem_init(struct uhci_aux_mem *); 200 Static usbd_status uhci_aux_mem_alloc(uhci_softc_t *, 201 struct uhci_aux_mem *, 202 int /*naux*/, int /*maxp*/); 203 Static void uhci_aux_mem_free(uhci_softc_t *, 204 struct uhci_aux_mem *); 205 Static void uhci_aux_dma_alloc(uhci_soft_td_t *, 206 struct uhci_aux_mem *, const union uhci_bufptr *, 207 int); 208 Static void uhci_aux_dma_prepare(uhci_soft_td_t *, int /*is_mbuf*/, 209 int /*isread*/); 210 Static void uhci_aux_dma_complete(uhci_soft_td_t *, 211 struct uhci_aux_mem *, int /*is_mbuf*/, 212 int /*isread*/); 213 Static void uhci_aux_dma_sync(uhci_softc_t *, 214 struct uhci_aux_mem *, int /*op*/); 215 #if 0 216 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 217 uhci_intr_info_t *); 218 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 219 #endif 220 221 Static void uhci_free_std_chain(uhci_softc_t *, 222 uhci_soft_td_t *, uhci_soft_td_t *); 223 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 224 uhci_softc_t *, int, int, u_int16_t, 225 usbd_xfer_handle xfer, 226 uhci_soft_td_t **, uhci_soft_td_t **); 227 Static void uhci_poll_hub(void *); 228 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 229 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 230 Static void uhci_idone(uhci_intr_info_t *); 231 232 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 233 Static void uhci_transfer_complete(usbd_xfer_handle xfer); 234 235 Static void uhci_timeout(void *); 236 Static void uhci_timeout_task(void *); 237 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 238 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 239 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 240 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 241 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 242 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 243 Static int uhci_str(usb_string_descriptor_t *, int, const char *); 244 Static void uhci_add_loop(uhci_softc_t *sc); 245 Static void uhci_rem_loop(uhci_softc_t *sc); 246 247 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 248 Static void uhci_device_isoc_enter(usbd_xfer_handle); 249 250 Static usbd_status uhci_prealloc(struct uhci_softc *, 251 struct uhci_xfer *, size_t /*bufsize*/, 252 int /*nseg*/); 253 Static usbd_status uhci_allocm(struct usbd_bus *, usbd_xfer_handle, 254 void *, size_t); 255 Static void uhci_freem(struct usbd_bus *, usbd_xfer_handle, 256 enum usbd_waitflg); 257 258 Static usbd_status uhci_map_alloc(usbd_xfer_handle); 259 Static void uhci_map_free(usbd_xfer_handle); 260 Static void uhci_mapm(usbd_xfer_handle, void *, size_t); 261 Static usbd_status uhci_mapm_mbuf(usbd_xfer_handle, struct mbuf *); 262 Static void uhci_unmapm(usbd_xfer_handle); 263 264 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *, usbd_pipe_handle, 265 enum usbd_waitflg); 266 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 267 268 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 269 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 270 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 271 Static void uhci_device_ctrl_close(usbd_pipe_handle); 272 Static void uhci_device_ctrl_done(usbd_xfer_handle); 273 274 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 275 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 276 Static void uhci_device_intr_abort(usbd_xfer_handle); 277 Static void uhci_device_intr_close(usbd_pipe_handle); 278 Static void uhci_device_intr_done(usbd_xfer_handle); 279 280 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 281 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 282 Static void uhci_device_bulk_abort(usbd_xfer_handle); 283 Static void uhci_device_bulk_close(usbd_pipe_handle); 284 Static void uhci_device_bulk_done(usbd_xfer_handle); 285 286 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 287 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 288 Static void uhci_device_isoc_abort(usbd_xfer_handle); 289 Static void uhci_device_isoc_close(usbd_pipe_handle); 290 Static void uhci_device_isoc_done(usbd_xfer_handle); 291 292 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 293 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 294 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 295 Static void uhci_root_ctrl_close(usbd_pipe_handle); 296 Static void uhci_root_ctrl_done(usbd_xfer_handle); 297 298 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 299 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 300 Static void uhci_root_intr_abort(usbd_xfer_handle); 301 Static void uhci_root_intr_close(usbd_pipe_handle); 302 Static void uhci_root_intr_done(usbd_xfer_handle); 303 304 Static usbd_status uhci_open(usbd_pipe_handle); 305 Static void uhci_poll(struct usbd_bus *); 306 Static void uhci_softintr(void *); 307 308 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 309 310 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 311 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 312 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 313 struct uhci_pipe *pipe, int ival); 314 315 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 316 Static void uhci_noop(usbd_pipe_handle pipe); 317 318 Static inline uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 319 uhci_soft_qh_t *); 320 321 #ifdef USB_DEBUG 322 Static void uhci_dump_all(uhci_softc_t *); 323 Static void uhci_dumpregs(uhci_softc_t *); 324 Static void uhci_dump_qhs(uhci_soft_qh_t *); 325 Static void uhci_dump_qh(uhci_soft_qh_t *); 326 Static void uhci_dump_tds(uhci_soft_td_t *); 327 Static void uhci_dump_td(uhci_soft_td_t *); 328 Static void uhci_dump_ii(uhci_intr_info_t *ii); 329 void uhci_dump(void); 330 #endif 331 332 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 333 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 334 #define UWRITE1(sc, r, x) \ 335 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 336 } while (/*CONSTCOND*/0) 337 #define UWRITE2(sc, r, x) \ 338 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 339 } while (/*CONSTCOND*/0) 340 #define UWRITE4(sc, r, x) \ 341 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 342 } while (/*CONSTCOND*/0) 343 static __inline uint8_t 344 UREAD1(uhci_softc_t *sc, bus_size_t r) 345 { 346 347 UBARR(sc); 348 return bus_space_read_1(sc->iot, sc->ioh, r); 349 } 350 351 static __inline uint16_t 352 UREAD2(uhci_softc_t *sc, bus_size_t r) 353 { 354 355 UBARR(sc); 356 return bus_space_read_2(sc->iot, sc->ioh, r); 357 } 358 359 static __inline uint32_t 360 UREAD4(uhci_softc_t *sc, bus_size_t r) 361 { 362 363 UBARR(sc); 364 return bus_space_read_4(sc->iot, sc->ioh, r); 365 } 366 367 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 368 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 369 370 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 371 372 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 373 374 #define UHCI_INTR_ENDPT 1 375 376 const struct usbd_bus_methods uhci_bus_methods = { 377 uhci_open, 378 uhci_softintr, 379 uhci_poll, 380 uhci_allocm, 381 uhci_freem, 382 uhci_map_alloc, 383 uhci_map_free, 384 uhci_mapm, 385 uhci_mapm_mbuf, 386 uhci_unmapm, 387 uhci_allocx, 388 uhci_freex, 389 }; 390 391 const struct usbd_pipe_methods uhci_root_ctrl_methods = { 392 uhci_root_ctrl_transfer, 393 uhci_root_ctrl_start, 394 uhci_root_ctrl_abort, 395 uhci_root_ctrl_close, 396 uhci_noop, 397 uhci_root_ctrl_done, 398 }; 399 400 const struct usbd_pipe_methods uhci_root_intr_methods = { 401 uhci_root_intr_transfer, 402 uhci_root_intr_start, 403 uhci_root_intr_abort, 404 uhci_root_intr_close, 405 uhci_noop, 406 uhci_root_intr_done, 407 }; 408 409 const struct usbd_pipe_methods uhci_device_ctrl_methods = { 410 uhci_device_ctrl_transfer, 411 uhci_device_ctrl_start, 412 uhci_device_ctrl_abort, 413 uhci_device_ctrl_close, 414 uhci_noop, 415 uhci_device_ctrl_done, 416 }; 417 418 const struct usbd_pipe_methods uhci_device_intr_methods = { 419 uhci_device_intr_transfer, 420 uhci_device_intr_start, 421 uhci_device_intr_abort, 422 uhci_device_intr_close, 423 uhci_device_clear_toggle, 424 uhci_device_intr_done, 425 }; 426 427 const struct usbd_pipe_methods uhci_device_bulk_methods = { 428 uhci_device_bulk_transfer, 429 uhci_device_bulk_start, 430 uhci_device_bulk_abort, 431 uhci_device_bulk_close, 432 uhci_device_clear_toggle, 433 uhci_device_bulk_done, 434 }; 435 436 const struct usbd_pipe_methods uhci_device_isoc_methods = { 437 uhci_device_isoc_transfer, 438 uhci_device_isoc_start, 439 uhci_device_isoc_abort, 440 uhci_device_isoc_close, 441 uhci_noop, 442 uhci_device_isoc_done, 443 }; 444 445 #define uhci_add_intr_info(sc, ii) \ 446 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 447 #define uhci_del_intr_info(ii) \ 448 do { \ 449 LIST_REMOVE((ii), list); \ 450 (ii)->list.le_prev = NULL; \ 451 } while (0) 452 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 453 454 Static inline uhci_soft_qh_t * 455 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 456 { 457 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 458 459 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 460 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 461 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 462 printf("uhci_find_prev_qh: QH not found\n"); 463 return (NULL); 464 } 465 #endif 466 } 467 return (pqh); 468 } 469 470 void 471 uhci_globalreset(uhci_softc_t *sc) 472 { 473 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 474 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 475 UHCICMD(sc, 0); /* do nothing */ 476 } 477 478 usbd_status 479 uhci_init(uhci_softc_t *sc) 480 { 481 usbd_status err; 482 int i, j; 483 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 484 uhci_soft_td_t *std; 485 486 DPRINTFN(1,("uhci_init: start\n")); 487 488 #ifdef USB_DEBUG 489 thesc = sc; 490 491 if (uhcidebug > 2) 492 uhci_dumpregs(sc); 493 #endif 494 495 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 496 uhci_globalreset(sc); /* reset the controller */ 497 uhci_reset(sc); 498 499 usb_dma_tag_init(&sc->sc_dmatag); 500 501 /* Allocate and initialize real frame array. */ 502 err = usb_allocmem(&sc->sc_dmatag, 503 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 504 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 505 if (err) 506 return (err); 507 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 508 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 509 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 510 511 /* 512 * Allocate a TD, inactive, that hangs from the last QH. 513 * This is to avoid a bug in the PIIX that makes it run berserk 514 * otherwise. 515 */ 516 std = uhci_alloc_std_norsv(sc); 517 if (std == NULL) 518 return (USBD_NOMEM); 519 std->link.std = NULL; 520 std->td.td_link = htole32(UHCI_PTR_T); 521 std->td.td_status = htole32(0); /* inactive */ 522 std->td.td_token = htole32(0); 523 std->td.td_buffer = htole32(0); 524 UHCI_STD_SYNC(sc, std, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 525 526 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 527 lsqh = uhci_alloc_sqh(sc); 528 if (lsqh == NULL) 529 return (USBD_NOMEM); 530 lsqh->hlink = NULL; 531 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 532 lsqh->elink = std; 533 lsqh->qh.qh_elink = htole32(UHCI_STD_DMAADDR(std) | UHCI_PTR_TD); 534 UHCI_SQH_SYNC(sc, lsqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 535 sc->sc_last_qh = lsqh; 536 537 /* Allocate the dummy QH where bulk traffic will be queued. */ 538 bsqh = uhci_alloc_sqh(sc); 539 if (bsqh == NULL) 540 return (USBD_NOMEM); 541 bsqh->hlink = lsqh; 542 bsqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(lsqh) | UHCI_PTR_QH); 543 bsqh->elink = NULL; 544 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 545 UHCI_SQH_SYNC(sc, bsqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 546 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 547 548 /* Allocate dummy QH where high speed control traffic will be queued. */ 549 chsqh = uhci_alloc_sqh(sc); 550 if (chsqh == NULL) 551 return (USBD_NOMEM); 552 chsqh->hlink = bsqh; 553 chsqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(bsqh) | UHCI_PTR_QH); 554 chsqh->elink = NULL; 555 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 556 UHCI_SQH_SYNC(sc, chsqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 557 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 558 559 /* Allocate dummy QH where control traffic will be queued. */ 560 clsqh = uhci_alloc_sqh(sc); 561 if (clsqh == NULL) 562 return (USBD_NOMEM); 563 clsqh->hlink = chsqh; 564 clsqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(chsqh) | UHCI_PTR_QH); 565 clsqh->elink = NULL; 566 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 567 UHCI_SQH_SYNC(sc, clsqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 568 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 569 570 /* 571 * Make all (virtual) frame list pointers point to the interrupt 572 * queue heads and the interrupt queue heads at the control 573 * queue head and point the physical frame list to the virtual. 574 */ 575 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 576 std = uhci_alloc_std_norsv(sc); 577 sqh = uhci_alloc_sqh(sc); 578 if (std == NULL || sqh == NULL) { 579 if (std) 580 uhci_free_std_norsv(sc, std); 581 /* XXX free resources */ 582 return (USBD_NOMEM); 583 } 584 std->link.sqh = sqh; 585 std->td.td_link = htole32(UHCI_SQH_DMAADDR(sqh) | UHCI_PTR_QH); 586 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 587 std->td.td_token = htole32(0); 588 std->td.td_buffer = htole32(0); 589 UHCI_STD_SYNC(sc, std, 590 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 591 sqh->hlink = clsqh; 592 sqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(clsqh) | UHCI_PTR_QH); 593 sqh->elink = NULL; 594 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 595 UHCI_SQH_SYNC(sc, sqh, 596 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 597 sc->sc_vframes[i].htd = std; 598 sc->sc_vframes[i].etd = std; 599 sc->sc_vframes[i].hqh = sqh; 600 sc->sc_vframes[i].eqh = sqh; 601 for (j = i; 602 j < UHCI_FRAMELIST_COUNT; 603 j += UHCI_VFRAMELIST_COUNT) 604 sc->sc_pframes[j] = htole32(UHCI_STD_DMAADDR(std)); 605 } 606 607 LIST_INIT(&sc->sc_intrhead); 608 609 SIMPLEQ_INIT(&sc->sc_free_xfers); 610 611 usb_callout_init(sc->sc_poll_handle); 612 613 /* Set up the bus struct. */ 614 sc->sc_bus.methods = &uhci_bus_methods; 615 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 616 617 sc->sc_suspend = PWR_RESUME; 618 #if defined(__NetBSD__) || defined(__OpenBSD__) 619 sc->sc_powerhook = powerhook_establish(USBDEVNAME(sc->sc_bus.bdev), 620 uhci_power, sc); 621 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 622 #endif 623 624 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 625 626 DPRINTFN(1,("uhci_init: enabling\n")); 627 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 628 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 629 630 return (uhci_run(sc, 1)); /* and here we go... */ 631 } 632 633 #if defined(__NetBSD__) || defined(__OpenBSD__) 634 int 635 uhci_activate(device_t self, enum devact act) 636 { 637 struct uhci_softc *sc = (struct uhci_softc *)self; 638 int rv = 0; 639 640 switch (act) { 641 case DVACT_ACTIVATE: 642 return (EOPNOTSUPP); 643 644 case DVACT_DEACTIVATE: 645 if (sc->sc_child != NULL) 646 rv = config_deactivate(sc->sc_child); 647 break; 648 } 649 return (rv); 650 } 651 #endif 652 653 int 654 uhci_detach(struct uhci_softc *sc, int flags) 655 { 656 usbd_xfer_handle xfer; 657 int rv = 0; 658 659 #if defined(__NetBSD__) || defined(__OpenBSD__) 660 if (sc->sc_child != NULL) 661 rv = config_detach(sc->sc_child, flags); 662 663 if (rv != 0) 664 return (rv); 665 #else 666 sc->sc_dying = 1; 667 #endif 668 669 #if defined(__NetBSD__) || defined(__OpenBSD__) 670 /* Don't touch hardware if it has already been gone. */ 671 if ((flags & DETACH_FORCE) == 0) 672 #endif 673 { 674 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 675 uhci_run(sc, 0); 676 } 677 678 #if defined(__NetBSD__) || defined(__OpenBSD__) 679 powerhook_disestablish(sc->sc_powerhook); 680 shutdownhook_disestablish(sc->sc_shutdownhook); 681 #endif 682 683 /* Free all xfers associated with this HC. */ 684 while ((xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers)) == NULL) { 685 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 686 usb_clean_buffer_dma(&sc->sc_dmatag, &UXFER(xfer)->dmabuf); 687 free(xfer, M_USB); 688 } 689 690 /* XXX free other data structures XXX */ 691 usb_freemem(&sc->sc_dmatag, &sc->sc_dma); 692 693 uhci_free_desc_chunks(sc, &sc->sc_std_chunks); 694 uhci_free_desc_chunks(sc, &sc->sc_sqh_chunks); 695 usb_dma_tag_finish(&sc->sc_dmatag); 696 697 return (rv); 698 } 699 700 Static usbd_status 701 uhci_prealloc(struct uhci_softc *sc, struct uhci_xfer *uxfer, 702 size_t bufsize, int nseg) 703 { 704 struct usbd_pipe *pipe; 705 int maxp, ntd, naux; 706 int s; 707 int err; 708 709 pipe = uxfer->xfer.pipe; 710 maxp = UE_MAXPKTSZ(pipe->endpoint->edesc); 711 712 if (maxp == 0 || maxp > UHCI_MAX_PKT_SIZE) 713 return (USBD_INVAL); 714 715 /* estimate needed number of TDs */ 716 if ((pipe->endpoint->edesc->bmAttributes & UE_XFERTYPE) == 717 UE_ISOCHRONOUS) { 718 /* isochronous: TDs are allocated when uhci_open() is called */ 719 ntd = 0; 720 } else { 721 /* UHCI: one TD per packet */ 722 ntd = (bufsize + maxp - 1) / maxp; 723 } 724 725 /* estimate needed aux segments */ 726 naux = nseg - 1; 727 728 /* pre-allocate aux memory */ 729 err = uhci_aux_mem_alloc(sc, &uxfer->aux, naux, maxp); 730 if (err) 731 return err; 732 733 s = splusb(); 734 /* pre-allocate TDs */ 735 while (sc->sc_nfreetds < ntd) { 736 DPRINTF(("%s: uhci_prealloc: need %d TD (%d cur)\n", 737 USBDEVNAME(sc->sc_bus.bdev), 738 ntd, sc->sc_nfreetds)); 739 if ((err = uhci_grow_std(sc)) != USBD_NORMAL_COMPLETION) 740 break; 741 } 742 if (!err) { 743 sc->sc_nfreetds -= ntd; 744 uxfer->rsvd_tds = ntd; 745 } 746 splx(s); 747 748 if (err) 749 uhci_aux_mem_free(sc, &uxfer->aux); 750 751 return err; 752 } 753 754 usbd_status 755 uhci_allocm(struct usbd_bus *bus, usbd_xfer_handle xfer, void *buf, size_t size) 756 { 757 struct uhci_softc *sc = (struct uhci_softc *)bus; 758 struct uhci_xfer *uxfer = UXFER(xfer); 759 usbd_status err; 760 761 if ((err = usb_alloc_buffer_dma(&sc->sc_dmatag, &UXFER(xfer)->dmabuf, 762 buf, size, &xfer->hcbuffer)) == USBD_NORMAL_COMPLETION) { 763 if ((xfer->rqflags & URQ_DEV_MAP_PREPARED) == 0 && 764 (err = uhci_prealloc(sc, uxfer, size, 765 USB_BUFFER_NSEGS(&uxfer->dmabuf))) 766 != USBD_NORMAL_COMPLETION) { 767 usb_free_buffer_dma(&sc->sc_dmatag, &uxfer->dmabuf, 768 U_WAITOK); 769 } 770 } 771 772 return err; 773 } 774 775 void 776 uhci_freem(struct usbd_bus *bus, usbd_xfer_handle xfer, 777 enum usbd_waitflg waitflg) 778 { 779 struct uhci_softc *sc = (struct uhci_softc *)bus; 780 struct uhci_xfer *uxfer = UXFER(xfer); 781 int s; 782 783 usb_free_buffer_dma(&sc->sc_dmatag, &UXFER(xfer)->dmabuf, waitflg); 784 785 if ((xfer->rqflags & URQ_DEV_MAP_PREPARED) == 0) { 786 s = splusb(); 787 sc->sc_nfreetds += uxfer->rsvd_tds; 788 splx(s); 789 uxfer->rsvd_tds = 0; 790 uhci_aux_mem_free(sc, &uxfer->aux); 791 } 792 } 793 794 Static usbd_status 795 uhci_map_alloc(usbd_xfer_handle xfer) 796 { 797 struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; 798 struct uhci_xfer *uxfer = UXFER(xfer); 799 usbd_status st; 800 801 st = usb_alloc_dma_resources(&sc->sc_dmatag, &uxfer->dmabuf); 802 if (st) 803 return st; 804 805 if ((st = uhci_prealloc(sc, uxfer, MAXPHYS, USB_DMA_NSEG))) { 806 usb_free_dma_resources(&sc->sc_dmatag, &uxfer->dmabuf); 807 } 808 809 return st; 810 } 811 812 Static void 813 uhci_map_free(usbd_xfer_handle xfer) 814 { 815 struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; 816 struct uhci_xfer *uxfer = UXFER(xfer); 817 int s; 818 819 USB_KASSERT(xfer->rqflags & URQ_DEV_MAP_PREPARED); 820 821 usb_free_dma_resources(&sc->sc_dmatag, &uxfer->dmabuf); 822 823 uhci_aux_mem_free(sc, &uxfer->aux); 824 s = splusb(); 825 sc->sc_nfreetds += uxfer->rsvd_tds; 826 splx(s); 827 uxfer->rsvd_tds = 0; 828 } 829 830 Static void 831 uhci_mapm(usbd_xfer_handle xfer, void *buf, size_t size) 832 { 833 struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; 834 struct uhci_xfer *uxfer = UXFER(xfer); 835 836 usb_map_dma(&sc->sc_dmatag, &uxfer->dmabuf, buf, size); 837 } 838 839 Static usbd_status 840 uhci_mapm_mbuf(usbd_xfer_handle xfer, struct mbuf *chain) 841 { 842 struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; 843 struct uhci_xfer *uxfer = UXFER(xfer); 844 usbd_status err; 845 846 err = usb_map_mbuf_dma(&sc->sc_dmatag, &uxfer->dmabuf, chain); 847 if (!err) 848 uxfer->mbuf = chain; 849 850 return (err); 851 } 852 853 Static void 854 uhci_unmapm(usbd_xfer_handle xfer) 855 { 856 struct uhci_softc *sc = (struct uhci_softc *)xfer->device->bus; 857 struct uhci_xfer *uxfer = UXFER(xfer); 858 859 usb_unmap_dma(&sc->sc_dmatag, &uxfer->dmabuf); 860 uxfer->mbuf = NULL; 861 } 862 863 usbd_xfer_handle 864 uhci_allocx(struct usbd_bus *bus, usbd_pipe_handle pipe, 865 enum usbd_waitflg waitflg) 866 { 867 struct uhci_softc *sc = (struct uhci_softc *)bus; 868 usbd_xfer_handle xfer; 869 870 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 871 if (xfer != NULL) { 872 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 873 #ifdef DIAGNOSTIC 874 if (xfer->busy_free != XFER_FREE) { 875 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 876 xfer->busy_free); 877 } 878 #endif 879 } else { 880 xfer = malloc(sizeof(struct uhci_xfer), M_USB, 881 waitflg == U_WAITOK ? M_WAITOK : M_NOWAIT); 882 } 883 if (xfer != NULL) { 884 memset(xfer, 0, sizeof (struct uhci_xfer)); 885 UXFER(xfer)->iinfo.sc = sc; 886 usb_init_task(&UXFER(xfer)->abort_task, uhci_timeout_task, 887 xfer); 888 UXFER(xfer)->uhci_xfer_flags = 0; 889 UXFER(xfer)->mbuf = NULL; 890 #ifdef DIAGNOSTIC 891 UXFER(xfer)->iinfo.isdone = 1; 892 xfer->busy_free = XFER_BUSY; 893 #endif 894 } 895 return (xfer); 896 } 897 898 void 899 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 900 { 901 struct uhci_softc *sc = (struct uhci_softc *)bus; 902 903 #ifdef DIAGNOSTIC 904 if (xfer->busy_free != XFER_BUSY) { 905 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 906 xfer->busy_free); 907 } 908 xfer->busy_free = XFER_FREE; 909 if (!UXFER(xfer)->iinfo.isdone) { 910 printf("uhci_freex: !isdone\n"); 911 } 912 #endif 913 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 914 } 915 916 /* 917 * Shut down the controller when the system is going down. 918 */ 919 void 920 uhci_shutdown(void *v) 921 { 922 uhci_softc_t *sc = v; 923 int s; 924 925 DPRINTF(("uhci_shutdown: stopping the HC\n")); 926 927 /* 928 * Use polling mode to prevent the interrupts shutting 929 * us down before we shut them down. 930 */ 931 s = splhardusb(); 932 sc->sc_bus.use_polling++; 933 uhci_run(sc, 0); /* stop the controller */ 934 sc->sc_bus.use_polling--; 935 splx(s); 936 } 937 938 /* 939 * Handle suspend/resume. 940 * 941 * We need to switch to polling mode here, because this routine is 942 * called from an interrupt context. This is all right since we 943 * are almost suspended anyway. 944 */ 945 void 946 uhci_power(int why, void *v) 947 { 948 uhci_softc_t *sc = v; 949 int cmd; 950 int s; 951 952 s = splhardusb(); 953 cmd = UREAD2(sc, UHCI_CMD); 954 955 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 956 sc, why, sc->sc_suspend, cmd)); 957 958 switch (why) { 959 USB_PWR_CASE_SUSPEND: 960 #ifdef USB_DEBUG 961 if (uhcidebug > 2) 962 uhci_dumpregs(sc); 963 #endif 964 if (sc->sc_intr_xfer != NULL) 965 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 966 sc->sc_intr_xfer); 967 sc->sc_bus.use_polling++; 968 uhci_run(sc, 0); /* stop the controller */ 969 970 /* save some state if BIOS doesn't */ 971 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 972 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 973 974 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 975 976 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 977 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 978 sc->sc_suspend = why; 979 sc->sc_bus.use_polling--; 980 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 981 break; 982 983 USB_PWR_CASE_RESUME: 984 #ifdef DIAGNOSTIC 985 if (sc->sc_suspend == PWR_RESUME) 986 printf("uhci_power: weird, resume without suspend.\n"); 987 #endif 988 sc->sc_bus.use_polling++; 989 sc->sc_suspend = why; 990 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 991 uhci_globalreset(sc); /* reset the controller */ 992 uhci_reset(sc); 993 if (cmd & UHCI_CMD_RS) 994 uhci_run(sc, 0); /* in case BIOS has started it */ 995 996 uhci_globalreset(sc); 997 uhci_reset(sc); 998 999 /* restore saved state */ 1000 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 1001 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 1002 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 1003 1004 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 1005 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 1006 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 1007 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 1008 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 1009 UHCICMD(sc, UHCI_CMD_MAXP); 1010 uhci_run(sc, 1); /* and start traffic again */ 1011 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 1012 sc->sc_bus.use_polling--; 1013 if (sc->sc_intr_xfer != NULL) 1014 usb_callout(sc->sc_poll_handle, sc->sc_ival, 1015 uhci_poll_hub, sc->sc_intr_xfer); 1016 #ifdef USB_DEBUG 1017 if (uhcidebug > 2) 1018 uhci_dumpregs(sc); 1019 #endif 1020 break; 1021 1022 default: 1023 break; 1024 } 1025 splx(s); 1026 } 1027 1028 #ifdef USB_DEBUG 1029 Static void 1030 uhci_dumpregs(uhci_softc_t *sc) 1031 { 1032 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 1033 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 1034 USBDEVNAME(sc->sc_bus.bdev), 1035 UREAD2(sc, UHCI_CMD), 1036 UREAD2(sc, UHCI_STS), 1037 UREAD2(sc, UHCI_INTR), 1038 UREAD2(sc, UHCI_FRNUM), 1039 UREAD4(sc, UHCI_FLBASEADDR), 1040 UREAD1(sc, UHCI_SOF), 1041 UREAD2(sc, UHCI_PORTSC1), 1042 UREAD2(sc, UHCI_PORTSC2))); 1043 } 1044 1045 void 1046 uhci_dump_td(uhci_soft_td_t *p) 1047 { 1048 char sbuf[128], sbuf2[128]; 1049 1050 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 1051 "token=0x%08lx buffer=0x%08lx\n", 1052 p, (long)UHCI_STD_DMAADDR(p), 1053 (long)le32toh(p->td.td_link), 1054 (long)le32toh(p->td.td_status), 1055 (long)le32toh(p->td.td_token), 1056 (long)le32toh(p->td.td_buffer))); 1057 1058 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 1059 sbuf, sizeof(sbuf)); 1060 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 1061 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1062 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 1063 sbuf2, sizeof(sbuf2)); 1064 1065 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 1066 "D=%d,maxlen=%d\n", sbuf, sbuf2, 1067 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 1068 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 1069 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 1070 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 1071 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 1072 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 1073 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 1074 } 1075 1076 void 1077 uhci_dump_qh(uhci_soft_qh_t *sqh) 1078 { 1079 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 1080 (int)UHCI_SQH_DMAADDR(sqh), le32toh(sqh->qh.qh_hlink), 1081 le32toh(sqh->qh.qh_elink))); 1082 } 1083 1084 1085 #if 1 1086 void 1087 uhci_dump(void) 1088 { 1089 uhci_dump_all(thesc); 1090 } 1091 #endif 1092 1093 void 1094 uhci_dump_all(uhci_softc_t *sc) 1095 { 1096 uhci_dumpregs(sc); 1097 printf("intrs=%d\n", sc->sc_bus.no_intrs); 1098 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 1099 uhci_dump_qh(sc->sc_lctl_start); 1100 } 1101 1102 1103 void 1104 uhci_dump_qhs(uhci_soft_qh_t *sqh) 1105 { 1106 uhci_dump_qh(sqh); 1107 1108 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 1109 * Traverses sideways first, then down. 1110 * 1111 * QH1 1112 * QH2 1113 * No QH 1114 * TD2.1 1115 * TD2.2 1116 * TD1.1 1117 * etc. 1118 * 1119 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 1120 */ 1121 1122 1123 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 1124 uhci_dump_qhs(sqh->hlink); 1125 else 1126 DPRINTF(("No QH\n")); 1127 1128 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 1129 uhci_dump_tds(sqh->elink); 1130 else 1131 DPRINTF(("No TD\n")); 1132 } 1133 1134 void 1135 uhci_dump_tds(uhci_soft_td_t *std) 1136 { 1137 uhci_soft_td_t *td; 1138 1139 for(td = std; td != NULL; td = td->link.std) { 1140 uhci_dump_td(td); 1141 1142 /* Check whether the link pointer in this TD marks 1143 * the link pointer as end of queue. This avoids 1144 * printing the free list in case the queue/TD has 1145 * already been moved there (seatbelt). 1146 */ 1147 if (le32toh(td->td.td_link) & UHCI_PTR_T || 1148 le32toh(td->td.td_link) == 0) 1149 break; 1150 } 1151 } 1152 1153 Static void 1154 uhci_dump_ii(uhci_intr_info_t *ii) 1155 { 1156 usbd_pipe_handle pipe; 1157 usb_endpoint_descriptor_t *ed; 1158 usbd_device_handle dev; 1159 1160 #ifdef DIAGNOSTIC 1161 #define DONE ii->isdone 1162 #else 1163 #define DONE 0 1164 #endif 1165 if (ii == NULL) { 1166 printf("ii NULL\n"); 1167 return; 1168 } 1169 if (ii->xfer == NULL) { 1170 printf("ii %p: done=%d xfer=NULL\n", 1171 ii, DONE); 1172 return; 1173 } 1174 pipe = ii->xfer->pipe; 1175 if (pipe == NULL) { 1176 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 1177 ii, DONE, ii->xfer); 1178 return; 1179 } 1180 if (pipe->endpoint == NULL) { 1181 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 1182 ii, DONE, ii->xfer, pipe); 1183 return; 1184 } 1185 if (pipe->device == NULL) { 1186 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 1187 ii, DONE, ii->xfer, pipe); 1188 return; 1189 } 1190 ed = pipe->endpoint->edesc; 1191 dev = pipe->device; 1192 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", 1193 ii, DONE, ii->xfer, dev, 1194 UGETW(dev->ddesc.idVendor), 1195 UGETW(dev->ddesc.idProduct), 1196 dev->address, pipe, 1197 ed->bEndpointAddress, ed->bmAttributes); 1198 #undef DONE 1199 } 1200 1201 void uhci_dump_iis(struct uhci_softc *sc); 1202 void 1203 uhci_dump_iis(struct uhci_softc *sc) 1204 { 1205 uhci_intr_info_t *ii; 1206 1207 printf("intr_info list:\n"); 1208 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1209 uhci_dump_ii(ii); 1210 } 1211 1212 void iidump(void); 1213 void iidump(void) { uhci_dump_iis(thesc); } 1214 1215 #endif 1216 1217 /* 1218 * This routine is executed periodically and simulates interrupts 1219 * from the root controller interrupt pipe for port status change. 1220 */ 1221 void 1222 uhci_poll_hub(void *addr) 1223 { 1224 usbd_xfer_handle xfer = addr; 1225 usbd_pipe_handle pipe = xfer->pipe; 1226 usbd_device_handle dev = pipe->device; 1227 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1228 int s; 1229 u_char *p; 1230 1231 DPRINTFN(20, ("uhci_poll_hub\n")); 1232 1233 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 1234 1235 p = xfer->hcbuffer; 1236 p[0] = 0; 1237 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1238 p[0] |= 1<<1; 1239 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1240 p[0] |= 1<<2; 1241 if (p[0] == 0) 1242 /* No change, try again in a while */ 1243 return; 1244 1245 xfer->actlen = 1; 1246 xfer->status = USBD_NORMAL_COMPLETION; 1247 s = splusb(); 1248 dev->bus->intr_context++; 1249 uhci_transfer_complete(xfer); 1250 dev->bus->intr_context--; 1251 splx(s); 1252 } 1253 1254 void 1255 uhci_root_intr_done(usbd_xfer_handle xfer) 1256 { 1257 } 1258 1259 void 1260 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1261 { 1262 } 1263 1264 /* 1265 * Let the last QH loop back to the high speed control transfer QH. 1266 * This is what intel calls "bandwidth reclamation" and improves 1267 * USB performance a lot for some devices. 1268 * If we are already looping, just count it. 1269 */ 1270 void 1271 uhci_add_loop(uhci_softc_t *sc) { 1272 #ifdef USB_DEBUG 1273 if (uhcinoloop) 1274 return; 1275 #endif 1276 if (++sc->sc_loops == 1) { 1277 DPRINTFN(5,("uhci_start_loop: add\n")); 1278 /* Note, we don't loop back the soft pointer. */ 1279 sc->sc_last_qh->qh.qh_hlink = 1280 htole32(UHCI_SQH_DMAADDR(sc->sc_hctl_start) | UHCI_PTR_QH); 1281 } 1282 } 1283 1284 void 1285 uhci_rem_loop(uhci_softc_t *sc) { 1286 #ifdef USB_DEBUG 1287 if (uhcinoloop) 1288 return; 1289 #endif 1290 if (--sc->sc_loops == 0) { 1291 DPRINTFN(5,("uhci_end_loop: remove\n")); 1292 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1293 } 1294 } 1295 1296 /* Add high speed control QH, called at splusb(). */ 1297 void 1298 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1299 { 1300 uhci_soft_qh_t *eqh; 1301 1302 SPLUSBCHECK; 1303 1304 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1305 eqh = sc->sc_hctl_end; 1306 sqh->hlink = eqh->hlink; 1307 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1308 UHCI_SQH_SYNC(sc, sqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1309 eqh->hlink = sqh; 1310 eqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(sqh) | UHCI_PTR_QH); 1311 UHCI_SQH_SYNC(sc, eqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1312 sc->sc_hctl_end = sqh; 1313 #ifdef UHCI_CTL_LOOP 1314 uhci_add_loop(sc); 1315 #endif 1316 } 1317 1318 /* Remove high speed control QH, called at splusb(). */ 1319 void 1320 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1321 { 1322 uhci_soft_qh_t *pqh; 1323 1324 SPLUSBCHECK; 1325 1326 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1327 #ifdef UHCI_CTL_LOOP 1328 uhci_rem_loop(sc); 1329 #endif 1330 /* 1331 * The T bit should be set in the elink of the QH so that the HC 1332 * doesn't follow the pointer. This condition may fail if the 1333 * the transferred packet was short so that the QH still points 1334 * at the last used TD. 1335 * In this case we set the T bit and wait a little for the HC 1336 * to stop looking at the TD. 1337 */ 1338 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1339 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1340 UHCI_SQH_SYNC(sc, sqh, 1341 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1342 delay(UHCI_QH_REMOVE_DELAY); 1343 } 1344 1345 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1346 pqh->hlink = sqh->hlink; 1347 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1348 UHCI_SQH_SYNC(sc, pqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1349 delay(UHCI_QH_REMOVE_DELAY); 1350 if (sc->sc_hctl_end == sqh) 1351 sc->sc_hctl_end = pqh; 1352 } 1353 1354 /* Add low speed control QH, called at splusb(). */ 1355 void 1356 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1357 { 1358 uhci_soft_qh_t *eqh; 1359 1360 SPLUSBCHECK; 1361 1362 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1363 eqh = sc->sc_lctl_end; 1364 sqh->hlink = eqh->hlink; 1365 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1366 UHCI_SQH_SYNC(sc, sqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1367 eqh->hlink = sqh; 1368 eqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(sqh) | UHCI_PTR_QH); 1369 UHCI_SQH_SYNC(sc, eqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1370 sc->sc_lctl_end = sqh; 1371 } 1372 1373 /* Remove low speed control QH, called at splusb(). */ 1374 void 1375 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1376 { 1377 uhci_soft_qh_t *pqh; 1378 1379 SPLUSBCHECK; 1380 1381 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1382 /* See comment in uhci_remove_hs_ctrl() */ 1383 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1384 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1385 UHCI_SQH_SYNC(sc, sqh, 1386 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1387 delay(UHCI_QH_REMOVE_DELAY); 1388 } 1389 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1390 pqh->hlink = sqh->hlink; 1391 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1392 UHCI_SQH_SYNC(sc, pqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1393 delay(UHCI_QH_REMOVE_DELAY); 1394 if (sc->sc_lctl_end == sqh) 1395 sc->sc_lctl_end = pqh; 1396 } 1397 1398 /* Add bulk QH, called at splusb(). */ 1399 void 1400 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1401 { 1402 uhci_soft_qh_t *eqh; 1403 1404 SPLUSBCHECK; 1405 1406 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1407 eqh = sc->sc_bulk_end; 1408 sqh->hlink = eqh->hlink; 1409 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1410 UHCI_SQH_SYNC(sc, sqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1411 eqh->hlink = sqh; 1412 eqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(sqh) | UHCI_PTR_QH); 1413 UHCI_SQH_SYNC(sc, eqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1414 sc->sc_bulk_end = sqh; 1415 uhci_add_loop(sc); 1416 } 1417 1418 /* Remove bulk QH, called at splusb(). */ 1419 void 1420 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1421 { 1422 uhci_soft_qh_t *pqh; 1423 1424 SPLUSBCHECK; 1425 1426 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1427 uhci_rem_loop(sc); 1428 /* See comment in uhci_remove_hs_ctrl() */ 1429 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1430 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1431 UHCI_SQH_SYNC(sc, sqh, 1432 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1433 delay(UHCI_QH_REMOVE_DELAY); 1434 } 1435 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1436 pqh->hlink = sqh->hlink; 1437 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1438 UHCI_SQH_SYNC(sc, pqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1439 delay(UHCI_QH_REMOVE_DELAY); 1440 if (sc->sc_bulk_end == sqh) 1441 sc->sc_bulk_end = pqh; 1442 } 1443 1444 Static int uhci_intr1(uhci_softc_t *); 1445 1446 int 1447 uhci_intr(void *arg) 1448 { 1449 uhci_softc_t *sc = arg; 1450 1451 if (sc->sc_dying) 1452 return (0); 1453 1454 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1455 if (sc->sc_bus.use_polling) { 1456 #ifdef DIAGNOSTIC 1457 printf("uhci_intr: ignored interrupt while polling\n"); 1458 #endif 1459 return (0); 1460 } 1461 return (uhci_intr1(sc)); 1462 } 1463 1464 int 1465 uhci_intr1(uhci_softc_t *sc) 1466 { 1467 1468 int status; 1469 int ack; 1470 1471 #ifdef __FreeBSD__ 1472 /* 1473 * It can happen that an interrupt will be delivered to 1474 * us before the device has been fully attached and the 1475 * softc struct has been configured on FreeBSD. Usually 1476 * this happens when kldloading the USB support as a module 1477 * after the system has been booted. If we detect this condition, 1478 * we need to squelch the unwanted interrupts until we're 1479 * ready for them. 1480 */ 1481 if (sc->sc_bus.bdev == NULL) { 1482 UWRITE2(sc, UHCI_STS, 0xFFFF); /* ack pending interrupts */ 1483 uhci_run(sc, 0); /* stop the controller */ 1484 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 1485 return(0); 1486 } 1487 #endif 1488 1489 #ifdef USB_DEBUG 1490 if (uhcidebug > 15) { 1491 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1492 uhci_dumpregs(sc); 1493 } 1494 #endif 1495 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1496 if (status == 0) /* The interrupt was not for us. */ 1497 return (0); 1498 1499 if (sc->sc_suspend != PWR_RESUME) { 1500 #ifdef DIAGNOSTIC 1501 printf("uhci_intr: suspended sts=0x%x\n", status); 1502 printf("%s: interrupt while not operating ignored\n", 1503 USBDEVNAME(sc->sc_bus.bdev)); 1504 #endif 1505 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1506 return (0); 1507 } 1508 1509 ack = 0; 1510 if (status & UHCI_STS_USBINT) 1511 ack |= UHCI_STS_USBINT; 1512 if (status & UHCI_STS_USBEI) 1513 ack |= UHCI_STS_USBEI; 1514 if (status & UHCI_STS_RD) { 1515 ack |= UHCI_STS_RD; 1516 #ifdef USB_DEBUG 1517 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1518 #endif 1519 } 1520 if (status & UHCI_STS_HSE) { 1521 ack |= UHCI_STS_HSE; 1522 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1523 } 1524 if (status & UHCI_STS_HCPE) { 1525 ack |= UHCI_STS_HCPE; 1526 printf("%s: host controller process error\n", 1527 USBDEVNAME(sc->sc_bus.bdev)); 1528 } 1529 if (status & UHCI_STS_HCH) { 1530 /* no acknowledge needed */ 1531 if (!sc->sc_dying) { 1532 printf("%s: host controller halted\n", 1533 USBDEVNAME(sc->sc_bus.bdev)); 1534 #ifdef USB_DEBUG 1535 uhci_dump_all(sc); 1536 #endif 1537 } 1538 sc->sc_dying = 1; 1539 } 1540 1541 if (!ack) 1542 return (0); /* nothing to acknowledge */ 1543 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1544 1545 sc->sc_bus.no_intrs++; 1546 usb_schedsoftintr(&sc->sc_bus); 1547 1548 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1549 1550 return (1); 1551 } 1552 1553 void 1554 uhci_softintr(void *v) 1555 { 1556 uhci_softc_t *sc = v; 1557 uhci_intr_info_t *ii, *nextii; 1558 1559 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1560 sc->sc_bus.intr_context)); 1561 1562 sc->sc_bus.intr_context++; 1563 1564 /* 1565 * Interrupts on UHCI really suck. When the host controller 1566 * interrupts because a transfer is completed there is no 1567 * way of knowing which transfer it was. You can scan down 1568 * the TDs and QHs of the previous frame to limit the search, 1569 * but that assumes that the interrupt was not delayed by more 1570 * than 1 ms, which may not always be true (e.g. after debug 1571 * output on a slow console). 1572 * We scan all interrupt descriptors to see if any have 1573 * completed. 1574 */ 1575 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1576 nextii = LIST_NEXT(ii, list); 1577 uhci_check_intr(sc, ii); 1578 } 1579 1580 #ifdef USB_USE_SOFTINTR 1581 if (sc->sc_softwake) { 1582 sc->sc_softwake = 0; 1583 wakeup(&sc->sc_softwake); 1584 } 1585 #endif /* USB_USE_SOFTINTR */ 1586 1587 sc->sc_bus.intr_context--; 1588 } 1589 1590 /* Check for an interrupt. */ 1591 void 1592 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1593 { 1594 uhci_soft_td_t *std, *lstd; 1595 u_int32_t status; 1596 1597 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1598 #ifdef DIAGNOSTIC 1599 if (ii == NULL) { 1600 printf("uhci_check_intr: no ii? %p\n", ii); 1601 return; 1602 } 1603 #endif 1604 if (ii->xfer->status == USBD_CANCELLED || 1605 ii->xfer->status == USBD_TIMEOUT) { 1606 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1607 return; 1608 } 1609 1610 if (ii->stdstart == NULL) 1611 return; 1612 lstd = ii->stdend; 1613 #ifdef DIAGNOSTIC 1614 if (lstd == NULL) { 1615 printf("uhci_check_intr: std==0\n"); 1616 return; 1617 } 1618 #endif 1619 /* 1620 * If the last TD is still active we need to check whether there 1621 * is an error somewhere in the middle, or whether there was a 1622 * short packet (SPD and not ACTIVE). 1623 */ 1624 UHCI_STD_SYNC(sc, lstd, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 1625 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1626 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1627 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1628 UHCI_STD_SYNC(sc, lstd, 1629 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 1630 status = le32toh(std->td.td_status); 1631 /* If there's an active TD the xfer isn't done. */ 1632 if (status & UHCI_TD_ACTIVE) 1633 break; 1634 /* Any kind of error makes the xfer done. */ 1635 if (status & UHCI_TD_STALLED) 1636 goto done; 1637 /* We want short packets, and it is short: it's done */ 1638 if ((status & UHCI_TD_SPD) && 1639 UHCI_TD_GET_ACTLEN(status) < 1640 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1641 goto done; 1642 } 1643 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1644 ii, ii->stdstart)); 1645 return; 1646 } 1647 done: 1648 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1649 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1650 usb_rem_task(ii->xfer->pipe->device, &UXFER(ii->xfer)->abort_task); 1651 uhci_idone(ii); 1652 } 1653 1654 /* Called at splusb() */ 1655 void 1656 uhci_idone(uhci_intr_info_t *ii) 1657 { 1658 usbd_xfer_handle xfer = ii->xfer; 1659 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1660 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1661 uhci_soft_td_t *std; 1662 u_int32_t status = 0, nstatus; 1663 int actlen; 1664 1665 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1666 #ifdef DIAGNOSTIC 1667 { 1668 int s = splhigh(); 1669 if (ii->isdone) { 1670 splx(s); 1671 #ifdef USB_DEBUG 1672 printf("uhci_idone: ii is done!\n "); 1673 uhci_dump_ii(ii); 1674 #else 1675 printf("uhci_idone: ii=%p is done!\n", ii); 1676 #endif 1677 return; 1678 } 1679 ii->isdone = 1; 1680 splx(s); 1681 } 1682 #endif 1683 1684 if (xfer->nframes != 0) { 1685 /* Isoc transfer, do things differently. */ 1686 uhci_soft_td_t **stds = upipe->u.iso.stds; 1687 int i, n, nframes, len; 1688 1689 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1690 1691 nframes = xfer->nframes; 1692 actlen = 0; 1693 n = UXFER(xfer)->curframe; 1694 for (i = 0; i < nframes; i++) { 1695 std = stds[n]; 1696 UHCI_STD_SYNC(sc, std, 1697 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 1698 #ifdef USB_DEBUG 1699 if (uhcidebug > 5) { 1700 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1701 uhci_dump_td(std); 1702 } 1703 #endif 1704 if (++n >= UHCI_VFRAMELIST_COUNT) 1705 n = 0; 1706 status = le32toh(std->td.td_status); 1707 len = UHCI_TD_GET_ACTLEN(status); 1708 xfer->frlengths[i] = len; 1709 actlen += len; 1710 } 1711 upipe->u.iso.inuse -= nframes; 1712 xfer->actlen = actlen; 1713 xfer->status = USBD_NORMAL_COMPLETION; 1714 goto end; 1715 } 1716 1717 #ifdef USB_DEBUG 1718 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1719 ii, xfer, upipe)); 1720 if (uhcidebug > 10) 1721 uhci_dump_tds(ii->stdstart); 1722 #endif 1723 1724 /* The transfer is done, compute actual length and status. */ 1725 actlen = 0; 1726 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1727 nstatus = le32toh(std->td.td_status); 1728 if (nstatus & UHCI_TD_ACTIVE) 1729 break; 1730 1731 status = nstatus; 1732 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1733 UHCI_TD_PID_SETUP) 1734 actlen += UHCI_TD_GET_ACTLEN(status); 1735 else { 1736 /* 1737 * UHCI will report CRCTO in addition to a STALL or NAK 1738 * for a SETUP transaction. See section 3.2.2, "TD 1739 * CONTROL AND STATUS". 1740 */ 1741 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1742 status &= ~UHCI_TD_CRCTO; 1743 } 1744 } 1745 /* If there are left over TDs we need to update the toggle. */ 1746 if (std != NULL) 1747 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1748 1749 status &= UHCI_TD_ERROR; 1750 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1751 actlen, status)); 1752 xfer->actlen = actlen; 1753 if (status != 0) { 1754 #ifdef USB_DEBUG 1755 char sbuf[128]; 1756 1757 bitmask_snprintf((u_int32_t)status, 1758 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1759 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1760 sbuf, sizeof(sbuf)); 1761 1762 DPRINTFN((status == UHCI_TD_STALLED)*10, 1763 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1764 "status 0x%s\n", 1765 xfer->pipe->device->address, 1766 xfer->pipe->endpoint->edesc->bEndpointAddress, 1767 sbuf)); 1768 #endif 1769 1770 if (status == UHCI_TD_STALLED) 1771 xfer->status = USBD_STALLED; 1772 else 1773 xfer->status = USBD_IOERROR; /* more info XXX */ 1774 } else { 1775 xfer->status = USBD_NORMAL_COMPLETION; 1776 } 1777 1778 end: 1779 uhci_transfer_complete(xfer); 1780 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1781 } 1782 1783 /* 1784 * Called when a request does not complete. 1785 */ 1786 void 1787 uhci_timeout(void *addr) 1788 { 1789 uhci_intr_info_t *ii = addr; 1790 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1791 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1792 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1793 1794 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1795 1796 if (sc->sc_dying) { 1797 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1798 return; 1799 } 1800 1801 /* Execute the abort in a process context. */ 1802 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task, 1803 USB_TASKQ_HC); 1804 } 1805 1806 void 1807 uhci_timeout_task(void *addr) 1808 { 1809 usbd_xfer_handle xfer = addr; 1810 int s; 1811 1812 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1813 1814 s = splusb(); 1815 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1816 splx(s); 1817 } 1818 1819 /* 1820 * Wait here until controller claims to have an interrupt. 1821 * Then call uhci_intr and return. Use timeout to avoid waiting 1822 * too long. 1823 * Only used during boot when interrupts are not enabled yet. 1824 */ 1825 void 1826 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1827 { 1828 int timo = xfer->timeout; 1829 uhci_intr_info_t *ii; 1830 1831 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1832 1833 xfer->status = USBD_IN_PROGRESS; 1834 for (; timo >= 0; timo--) { 1835 usb_delay_ms(&sc->sc_bus, 1); 1836 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1837 if (UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS) 1838 uhci_intr1(sc); 1839 if (xfer->status != USBD_IN_PROGRESS) 1840 return; 1841 } 1842 1843 /* Timeout */ 1844 DPRINTF(("uhci_waitintr: timeout\n")); 1845 for (ii = LIST_FIRST(&sc->sc_intrhead); 1846 ii != NULL && ii->xfer != xfer; 1847 ii = LIST_NEXT(ii, list)) 1848 ; 1849 #ifdef DIAGNOSTIC 1850 if (ii == NULL) 1851 panic("uhci_waitintr: lost intr_info"); 1852 #endif 1853 uhci_idone(ii); 1854 } 1855 1856 void 1857 uhci_poll(struct usbd_bus *bus) 1858 { 1859 uhci_softc_t *sc = (uhci_softc_t *)bus; 1860 1861 if (UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS) 1862 uhci_intr1(sc); 1863 } 1864 1865 void 1866 uhci_reset(uhci_softc_t *sc) 1867 { 1868 int n; 1869 1870 UHCICMD(sc, UHCI_CMD_HCRESET); 1871 /* The reset bit goes low when the controller is done. */ 1872 for (n = 0; n < UHCI_RESET_TIMEOUT && 1873 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1874 usb_delay_ms(&sc->sc_bus, 1); 1875 if (n >= UHCI_RESET_TIMEOUT) 1876 printf("%s: controller did not reset\n", 1877 USBDEVNAME(sc->sc_bus.bdev)); 1878 } 1879 1880 usbd_status 1881 uhci_run(uhci_softc_t *sc, int run) 1882 { 1883 int s, n, running; 1884 u_int16_t cmd; 1885 1886 run = run != 0; 1887 s = splhardusb(); 1888 DPRINTF(("uhci_run: setting run=%d\n", run)); 1889 cmd = UREAD2(sc, UHCI_CMD); 1890 if (run) 1891 cmd |= UHCI_CMD_RS; 1892 else 1893 cmd &= ~UHCI_CMD_RS; 1894 UHCICMD(sc, cmd); 1895 for(n = 0; n < 10; n++) { 1896 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1897 /* return when we've entered the state we want */ 1898 if (run == running) { 1899 splx(s); 1900 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1901 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1902 return (USBD_NORMAL_COMPLETION); 1903 } 1904 usb_delay_ms(&sc->sc_bus, 1); 1905 } 1906 splx(s); 1907 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1908 run ? "start" : "stop"); 1909 return (USBD_IOERROR); 1910 } 1911 1912 /* 1913 * Memory management routines. 1914 * uhci_alloc_std allocates TDs 1915 * uhci_alloc_sqh allocates QHs 1916 * These two routines do their own free list management, 1917 * partly for speed, partly because allocating DMAable memory 1918 * has page size granularaity so much memory would be wasted if 1919 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1920 */ 1921 1922 Static usbd_status 1923 uhci_grow_std(uhci_softc_t *sc) 1924 { 1925 usb_dma_t dma; 1926 struct uhci_mem_desc *um; 1927 uhci_soft_td_t *std; 1928 usbd_status err; 1929 int i, offs; 1930 int s; 1931 1932 DPRINTFN(2,("uhci_grow_std: allocating chunk\n")); 1933 err = usb_allocmem(&sc->sc_dmatag, 1934 UHCI_STD_SIZE*UHCI_STD_CHUNK + sizeof(struct uhci_mem_desc), 1935 UHCI_TD_ALIGN, &dma); 1936 if (err) 1937 return (err); 1938 um = KERNADDR(&dma, UHCI_STD_SIZE * UHCI_STD_CHUNK); 1939 um->um_top = KERNADDR(&dma, 0); 1940 um->um_topdma = DMAADDR(&dma, 0); 1941 um->um_dma = dma; 1942 s = splusb(); 1943 SIMPLEQ_INSERT_HEAD(&sc->sc_std_chunks, um, um_next); 1944 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1945 offs = i * UHCI_STD_SIZE; 1946 std = KERNADDR(&dma, offs); 1947 std->ut_mdesc = um; 1948 std->link.std = sc->sc_freetds; 1949 #if 0 1950 std->aux_dma.block = NULL; 1951 #endif 1952 std->aux_len = 0; 1953 sc->sc_freetds = std; 1954 sc->sc_nfreetds++; 1955 } 1956 splx(s); 1957 1958 return (USBD_NORMAL_COMPLETION); 1959 } 1960 1961 uhci_soft_td_t * 1962 uhci_alloc_std(uhci_softc_t *sc) 1963 { 1964 uhci_soft_td_t *std; 1965 int s; 1966 1967 #ifdef DIAGNOSTIC 1968 if (sc->sc_freetds == NULL) 1969 panic("uhci_alloc_std: %d", sc->sc_nfreetds); 1970 #endif 1971 s = splusb(); 1972 std = sc->sc_freetds; 1973 sc->sc_freetds = std->link.std; 1974 splx(s); 1975 memset(&std->td, 0, sizeof(uhci_td_t)); 1976 return std; 1977 } 1978 1979 Static uhci_soft_td_t * 1980 uhci_alloc_std_norsv(uhci_softc_t *sc) 1981 { 1982 int s; 1983 1984 s = splusb(); 1985 if (sc->sc_nfreetds < 1) 1986 if (uhci_grow_std(sc)) 1987 return (NULL); 1988 sc->sc_nfreetds--; 1989 splx(s); 1990 return (uhci_alloc_std(sc)); 1991 } 1992 1993 void 1994 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1995 { 1996 int s; 1997 1998 #ifdef DIAGNOSTIC 1999 #define TD_IS_FREE 0x12345678 2000 if (le32toh(std->td.td_token) == TD_IS_FREE) { 2001 printf("uhci_free_std: freeing free TD %p\n", std); 2002 return; 2003 } 2004 std->td.td_token = htole32(TD_IS_FREE); 2005 #endif 2006 #if 0 2007 if (std->aux_dma.block != NULL) { 2008 usb_freemem(&sc->sc_dmatag, &std->aux_dma); 2009 std->aux_dma.block = NULL; 2010 std->aux_len = 0; 2011 } 2012 #endif 2013 s = splusb(); 2014 std->link.std = sc->sc_freetds; 2015 sc->sc_freetds = std; 2016 splx(s); 2017 } 2018 2019 Static void 2020 uhci_free_std_norsv(uhci_softc_t *sc, uhci_soft_td_t *std) 2021 { 2022 int s; 2023 2024 s = splusb(); 2025 uhci_free_std(sc, std); 2026 sc->sc_nfreetds++; 2027 splx(s); 2028 } 2029 2030 uhci_soft_qh_t * 2031 uhci_alloc_sqh(uhci_softc_t *sc) 2032 { 2033 uhci_soft_qh_t *sqh; 2034 usbd_status err; 2035 int i, offs; 2036 usb_dma_t dma; 2037 struct uhci_mem_desc *um; 2038 2039 if (sc->sc_freeqhs == NULL) { 2040 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 2041 err = usb_allocmem(&sc->sc_dmatag, 2042 UHCI_SQH_SIZE*UHCI_SQH_CHUNK + sizeof(struct uhci_mem_desc), 2043 UHCI_QH_ALIGN, &dma); 2044 if (err) 2045 return (0); 2046 um = KERNADDR(&dma, UHCI_SQH_SIZE * UHCI_SQH_CHUNK); 2047 um->um_top = KERNADDR(&dma, 0); 2048 um->um_topdma = DMAADDR(&dma, 0); 2049 um->um_dma = dma; 2050 SIMPLEQ_INSERT_HEAD(&sc->sc_sqh_chunks, um, um_next); 2051 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 2052 offs = i * UHCI_SQH_SIZE; 2053 sqh = KERNADDR(&dma, offs); 2054 sqh->uq_mdesc = um; 2055 sqh->hlink = sc->sc_freeqhs; 2056 sc->sc_freeqhs = sqh; 2057 } 2058 } 2059 sqh = sc->sc_freeqhs; 2060 sc->sc_freeqhs = sqh->hlink; 2061 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 2062 return (sqh); 2063 } 2064 2065 void 2066 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2067 { 2068 sqh->hlink = sc->sc_freeqhs; 2069 sc->sc_freeqhs = sqh; 2070 } 2071 2072 Static void 2073 uhci_free_desc_chunks(uhci_softc_t *sc, struct uhci_mdescs *c) 2074 { 2075 struct uhci_mem_desc *um; 2076 2077 while ((um = SIMPLEQ_FIRST(c)) != NULL) { 2078 SIMPLEQ_REMOVE_HEAD(c, um_next); 2079 usb_freemem(&sc->sc_dmatag, &um->um_dma); 2080 } 2081 } 2082 2083 /* 2084 * Manipulate pointer to plain buffer or mbuf. 2085 */ 2086 2087 /* Set the buffer pointer to the beginning of buffer */ 2088 Static void 2089 uhci_bufptr_init(union uhci_bufptr *p, struct uhci_xfer *uxfer) 2090 { 2091 2092 if (uxfer->mbuf) { 2093 p->ptr_m.m_mbuf = uxfer->mbuf; 2094 p->ptr_m.m_off = 0; 2095 } else { 2096 p->ptr_p.p_buf = uxfer->xfer.hcbuffer; 2097 } 2098 } 2099 2100 /* Advance the buffer pointer by len bytes. */ 2101 Static void 2102 uhci_bufptr_advance(union uhci_bufptr *p, int len, int is_mbuf) 2103 { 2104 struct mbuf *m; 2105 int off, mlen; 2106 2107 if (is_mbuf) { 2108 for (m = p->ptr_m.m_mbuf, off = p->ptr_m.m_off; m && len; 2109 m = m->m_next, off = 0) { 2110 mlen = m->m_len - off; 2111 if (mlen > len) { 2112 off += len; 2113 len = 0; 2114 break; 2115 } 2116 len -= mlen; 2117 } 2118 p->ptr_m.m_off = off; 2119 p->ptr_m.m_mbuf = m; 2120 #ifdef DIAGNOSTIC 2121 if (len) 2122 panic("uhci_bufptr_advance: overrun %d", len); 2123 #endif 2124 } else { 2125 p->ptr_p.p_buf += len; 2126 } 2127 } 2128 2129 /* Copy data from the buffer pointer to linear buffer b. */ 2130 Static void 2131 uhci_bufptr_rd(const union uhci_bufptr *p, void *b, int len, int is_mbuf) 2132 { 2133 2134 if (is_mbuf) { 2135 m_copydata(p->ptr_m.m_mbuf, p->ptr_m.m_off, len, b); 2136 } else { 2137 memcpy(b, p->ptr_p.p_buf, len); 2138 } 2139 } 2140 2141 /* Copy data to the buffer pointer from linear buffer b. */ 2142 Static void 2143 uhci_bufptr_wr(const union uhci_bufptr *p, const void *b, int len, int is_mbuf) 2144 { 2145 struct mbuf *m; 2146 int off, mlen, curlen; 2147 const char *buf; 2148 2149 if (is_mbuf) { 2150 #if 0 /* overkill? */ 2151 m_copyback(p->ptr_m.m_mbuf, p->ptr_m.m_off, len, b); 2152 #else 2153 for (m = p->ptr_m.m_mbuf, off = p->ptr_m.m_off, buf = b; 2154 m && len; m = m->m_next, off = 0, buf += curlen) { 2155 mlen = m->m_len - off; 2156 curlen = (mlen > len) ? len : mlen; 2157 memcpy(mtod(m, caddr_t) + off, buf, curlen); 2158 len -= curlen; 2159 } 2160 #ifdef DIAGNOSTIC 2161 if (len) 2162 panic("uhci_bufptr_wr: overrun %d", len); 2163 #endif 2164 #endif 2165 } else { 2166 memcpy(p->ptr_p.p_buf, b, len); 2167 } 2168 } 2169 2170 void 2171 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 2172 uhci_soft_td_t *stdend) 2173 { 2174 uhci_soft_td_t *p; 2175 2176 for (; std != stdend; std = p) { 2177 p = std->link.std; 2178 uhci_free_std(sc, std); 2179 } 2180 } 2181 2182 usbd_status 2183 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 2184 int rd, u_int16_t flags, usbd_xfer_handle xfer, 2185 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 2186 { 2187 struct usb_buffer_dma *ub = &UXFER(xfer)->dmabuf; 2188 uhci_soft_td_t *p, *prevp, *startp; 2189 int i, ntd, l, tog, maxp, seg, segoff; 2190 u_int32_t status; 2191 int addr = upipe->pipe.device->address; 2192 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2193 bus_dma_segment_t *segs = USB_BUFFER_SEGS(ub); 2194 union uhci_bufptr bufptr; 2195 int is_mbuf; 2196 2197 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 2198 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 2199 upipe->pipe.device->speed, flags)); 2200 maxp = UE_MAXPKTSZ(upipe->pipe.endpoint->edesc); 2201 if (maxp == 0) { 2202 printf("uhci_alloc_std_chain: maxp=0\n"); 2203 return (USBD_INVAL); 2204 } 2205 ntd = (len + maxp - 1) / maxp; 2206 if (len == 0) 2207 flags |= USBD_FORCE_SHORT_XFER; 2208 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 2209 ntd++; 2210 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 2211 USB_KASSERT2(ntd > 0, ("uhci_alloc_std_chain: ntd=0")); 2212 tog = upipe->nexttoggle; 2213 prevp = NULL; 2214 startp = NULL; 2215 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 2216 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2217 status |= UHCI_TD_LS; 2218 if (flags & USBD_SHORT_XFER_OK) 2219 status |= UHCI_TD_SPD; 2220 uhci_bufptr_init(&bufptr, UXFER(xfer)); 2221 is_mbuf = UXFER(xfer)->mbuf != NULL; 2222 seg = 0; 2223 segoff = 0; 2224 for (i = 0; i < ntd; i++) { 2225 p = uhci_alloc_std(sc); 2226 if (p == NULL) { 2227 uhci_free_std_chain(sc, startp, NULL); 2228 return (USBD_NOMEM); 2229 } 2230 p->link.std = NULL; 2231 if (prevp != NULL) { 2232 prevp->link.std = p; 2233 prevp->td.td_link = 2234 htole32(UHCI_STD_DMAADDR(p) | UHCI_PTR_VF | 2235 UHCI_PTR_TD); 2236 UHCI_STD_SYNC(sc, prevp, 2237 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2238 } else { 2239 startp = p; 2240 } 2241 p->td.td_status = htole32(status); 2242 if (i == ntd - 1) { 2243 /* last TD */ 2244 l = len % maxp; 2245 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 2246 l = maxp; 2247 *ep = p; 2248 } else 2249 l = maxp; 2250 p->td.td_token = 2251 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 2252 UHCI_TD_OUT(l, endpt, addr, tog)); 2253 2254 if (i) 2255 uhci_bufptr_advance(&bufptr, maxp, is_mbuf); 2256 2257 USB_KASSERT2(seg < USB_BUFFER_NSEGS(ub) || l == 0, 2258 ("uhci_alloc_std_chain: too few segments")); 2259 if (l == 0) { 2260 p->td.td_buffer = 0; 2261 } else if (l > segs[seg].ds_len - segoff) { 2262 /* UHCI can't handle non-contiguous data. */ 2263 uhci_aux_dma_alloc(p, &UXFER(xfer)->aux, &bufptr, l); 2264 2265 /* prepare aux DMA */ 2266 uhci_aux_dma_prepare(p, is_mbuf, rd); 2267 p->td.td_buffer = htole32(p->aux_dma); 2268 2269 /* skip handled segments */ 2270 l += segoff; 2271 do { 2272 l -= segs[seg].ds_len; 2273 seg++; 2274 USB_KASSERT2(seg < USB_BUFFER_NSEGS(ub), 2275 ("uhci_alloc_std_chain: too few segments 2")); 2276 } while (l > segs[seg].ds_len); 2277 segoff = 0; 2278 } else { 2279 p->td.td_buffer = htole32(segs[seg].ds_addr + 2280 segoff); 2281 } 2282 segoff += l; 2283 if (l > 0 && segoff >= segs[seg].ds_len) { 2284 USB_KASSERT2(segoff == segs[seg].ds_len, 2285 ("uhci_alloc_std_chain: overlap")); 2286 if (i * maxp + l != len) { 2287 seg++; 2288 segoff = 0; 2289 } 2290 } 2291 prevp = p; 2292 tog ^= 1; 2293 } 2294 prevp->td.td_link = htole32(UHCI_PTR_T | UHCI_PTR_VF | UHCI_PTR_TD); 2295 upipe->nexttoggle = tog; 2296 *sp = startp; 2297 uhci_aux_dma_sync(sc, &UXFER(xfer)->aux, 2298 rd ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2299 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 2300 upipe->nexttoggle)); 2301 return (USBD_NORMAL_COMPLETION); 2302 } 2303 2304 /* 2305 * Allocate a physically contiguous buffer to handle cases where UHCI 2306 * cannot handle a packet because it is not physically contiguous. 2307 */ 2308 Static void 2309 uhci_aux_mem_init(struct uhci_aux_mem *aux) 2310 { 2311 2312 aux->aux_curchunk = aux->aux_chunkoff = aux->aux_naux = 0; 2313 } 2314 2315 Static usbd_status 2316 uhci_aux_mem_alloc(uhci_softc_t *sc, struct uhci_aux_mem *aux, 2317 int naux, int maxp) 2318 { 2319 int nchunk, i, j; 2320 usbd_status err; 2321 2322 USB_KASSERT(aux->aux_nchunk == 0); 2323 2324 nchunk = UHCI_NCHUNK(naux, maxp); 2325 for (i = 0; i < nchunk; i++) { 2326 err = usb_allocmem(&sc->sc_dmatag, UHCI_AUX_CHUNK_SIZE, 2327 UHCI_AUX_CHUNK_SIZE, &aux->aux_chunk_dma[i]); 2328 if (err) { 2329 for (j = 0; j < i; j++) 2330 usb_freemem(&sc->sc_dmatag, 2331 &aux->aux_chunk_dma[j]); 2332 return (err); 2333 } 2334 } 2335 2336 aux->aux_nchunk = nchunk; 2337 uhci_aux_mem_init(aux); 2338 2339 return (USBD_NORMAL_COMPLETION); 2340 } 2341 2342 Static void 2343 uhci_aux_mem_free(uhci_softc_t *sc, struct uhci_aux_mem *aux) 2344 { 2345 int i; 2346 2347 for (i = 0; i < aux->aux_nchunk; i++) 2348 usb_freemem(&sc->sc_dmatag, &aux->aux_chunk_dma[i]); 2349 2350 aux->aux_nchunk = 0; 2351 } 2352 2353 Static void 2354 uhci_aux_dma_alloc(uhci_soft_td_t *std, struct uhci_aux_mem *aux, 2355 const union uhci_bufptr *bufptr, int len) 2356 { 2357 2358 if (aux->aux_chunkoff + len > UHCI_AUX_CHUNK_SIZE) { 2359 aux->aux_curchunk++; 2360 aux->aux_chunkoff = 0; 2361 } 2362 USB_KASSERT(aux->aux_curchunk < aux->aux_nchunk); 2363 2364 std->aux_dma = 2365 DMAADDR(&aux->aux_chunk_dma[aux->aux_curchunk], aux->aux_chunkoff); 2366 std->aux_kern = 2367 KERNADDR(&aux->aux_chunk_dma[aux->aux_curchunk], aux->aux_chunkoff); 2368 std->aux_ptr = *bufptr; 2369 std->aux_len = len; 2370 2371 aux->aux_naux++; 2372 } 2373 2374 Static void 2375 uhci_aux_dma_prepare(uhci_soft_td_t *std, int is_mbuf, int isread) 2376 { 2377 2378 if (!isread) { 2379 uhci_bufptr_rd(&std->aux_ptr, std->aux_kern, std->aux_len, 2380 is_mbuf); 2381 } 2382 } 2383 2384 Static void 2385 uhci_aux_dma_complete(uhci_soft_td_t *std, struct uhci_aux_mem *aux, 2386 int is_mbuf, int isread) 2387 { 2388 2389 if (isread) { 2390 uhci_bufptr_wr(&std->aux_ptr, std->aux_kern, std->aux_len, 2391 is_mbuf); 2392 } 2393 std->aux_len = 0; 2394 if (--aux->aux_naux == 0) 2395 uhci_aux_mem_init(aux); 2396 USB_KASSERT(aux->aux_naux >= 0); 2397 } 2398 2399 Static void 2400 uhci_aux_dma_sync(uhci_softc_t *sc, struct uhci_aux_mem *aux, int op) 2401 { 2402 int naux, i; 2403 2404 naux = aux->aux_curchunk; 2405 if (aux->aux_chunkoff) 2406 naux++; 2407 2408 for (i = 0; i < naux; i++) 2409 USB_MEM_SYNC(&sc->sc_dmatag, &aux->aux_chunk_dma[i], op); 2410 } 2411 2412 void 2413 uhci_device_clear_toggle(usbd_pipe_handle pipe) 2414 { 2415 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2416 upipe->nexttoggle = 0; 2417 } 2418 2419 void 2420 uhci_noop(usbd_pipe_handle pipe) 2421 { 2422 } 2423 2424 usbd_status 2425 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 2426 { 2427 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2428 usbd_status err; 2429 2430 /* Insert last in queue. */ 2431 err = usb_insert_transfer_dma(xfer, &sc->sc_dmatag, 2432 &UXFER(xfer)->dmabuf); 2433 if (err) 2434 return (err); 2435 2436 /* 2437 * Pipe isn't running (otherwise err would be USBD_INPROG), 2438 * so start it first. 2439 */ 2440 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2441 } 2442 2443 usbd_status 2444 uhci_device_bulk_start(usbd_xfer_handle xfer) 2445 { 2446 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2447 usbd_device_handle dev = upipe->pipe.device; 2448 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2449 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2450 uhci_soft_td_t *data, *dataend; 2451 uhci_soft_qh_t *sqh; 2452 usbd_status err; 2453 int len, isread, endpt; 2454 int s; 2455 2456 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 2457 xfer, xfer->length, xfer->flags, ii)); 2458 2459 if (sc->sc_dying) 2460 return (USBD_IOERROR); 2461 2462 #ifdef DIAGNOSTIC 2463 if (xfer->rqflags & URQ_REQUEST) 2464 panic("uhci_device_bulk_transfer: a request"); 2465 #endif 2466 2467 len = xfer->length; 2468 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2469 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2470 sqh = upipe->u.bulk.sqh; 2471 2472 upipe->u.bulk.isread = isread; 2473 upipe->u.bulk.length = len; 2474 2475 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, xfer, 2476 &data, &dataend); 2477 if (err) 2478 return (err); 2479 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2480 UHCI_STD_SYNC(sc, dataend, 2481 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2482 2483 #ifdef USB_DEBUG 2484 if (uhcidebug > 8) { 2485 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 2486 uhci_dump_tds(data); 2487 } 2488 #endif 2489 2490 /* Set up interrupt info. */ 2491 ii->xfer = xfer; 2492 ii->stdstart = data; 2493 ii->stdend = dataend; 2494 #ifdef DIAGNOSTIC 2495 if (!ii->isdone) { 2496 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 2497 } 2498 ii->isdone = 0; 2499 #endif 2500 2501 sqh->elink = data; 2502 sqh->qh.qh_elink = htole32(UHCI_STD_DMAADDR(data) | UHCI_PTR_TD); 2503 2504 s = splusb(); 2505 uhci_add_bulk(sc, sqh); 2506 uhci_add_intr_info(sc, ii); 2507 2508 if (xfer->timeout && !sc->sc_bus.use_polling) { 2509 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2510 uhci_timeout, ii); 2511 } 2512 xfer->status = USBD_IN_PROGRESS; 2513 splx(s); 2514 2515 #ifdef USB_DEBUG 2516 if (uhcidebug > 10) { 2517 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 2518 uhci_dump_tds(data); 2519 } 2520 #endif 2521 2522 if (sc->sc_bus.use_polling) 2523 uhci_waitintr(sc, xfer); 2524 2525 return (USBD_IN_PROGRESS); 2526 } 2527 2528 /* Abort a device bulk request. */ 2529 void 2530 uhci_device_bulk_abort(usbd_xfer_handle xfer) 2531 { 2532 DPRINTF(("uhci_device_bulk_abort:\n")); 2533 uhci_abort_xfer(xfer, USBD_CANCELLED); 2534 } 2535 2536 /* 2537 * Abort a device request. 2538 * If this routine is called at splusb() it guarantees that the request 2539 * will be removed from the hardware scheduling and that the callback 2540 * for it will be called with USBD_CANCELLED status. 2541 * It's impossible to guarantee that the requested transfer will not 2542 * have happened since the hardware runs concurrently. 2543 * If the transaction has already happened we rely on the ordinary 2544 * interrupt processing to process it. 2545 */ 2546 void 2547 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2548 { 2549 struct uhci_xfer *uxfer = UXFER(xfer); 2550 uhci_intr_info_t *ii = &uxfer->iinfo; 2551 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2552 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2553 uhci_soft_td_t *std; 2554 int s; 2555 int wake; 2556 2557 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 2558 2559 if (sc->sc_dying) { 2560 /* If we're dying, just do the software part. */ 2561 s = splusb(); 2562 xfer->status = status; /* make software ignore it */ 2563 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 2564 usb_rem_task(xfer->pipe->device, &UXFER(xfer)->abort_task); 2565 uhci_transfer_complete(xfer); 2566 splx(s); 2567 return; 2568 } 2569 2570 if (xfer->device->bus->intr_context || !curproc) 2571 panic("uhci_abort_xfer: not in process context"); 2572 2573 /* 2574 * If an abort is already in progress then just wait for it to 2575 * complete and return. 2576 */ 2577 if (uxfer->uhci_xfer_flags & UHCI_XFER_ABORTING) { 2578 DPRINTFN(2, ("uhci_abort_xfer: already aborting\n")); 2579 /* No need to wait if we're aborting from a timeout. */ 2580 if (status == USBD_TIMEOUT) { 2581 #ifdef DIAGNOSTIC 2582 printf("uhci_abort_xfer: TIMEOUT while aborting\n"); 2583 #endif 2584 return; 2585 } 2586 /* Override the status which might be USBD_TIMEOUT. */ 2587 xfer->status = status; 2588 DPRINTFN(2, ("uhci_abort_xfer: waiting for abort to finish\n")); 2589 uxfer->uhci_xfer_flags |= UHCI_XFER_ABORTWAIT; 2590 while (uxfer->uhci_xfer_flags & UHCI_XFER_ABORTING) 2591 tsleep(&uxfer->uhci_xfer_flags, PZERO, "uhciaw", 0); 2592 return; 2593 } 2594 2595 /* 2596 * Step 1: Make interrupt routine and hardware ignore xfer. 2597 */ 2598 s = splusb(); 2599 uxfer->uhci_xfer_flags |= UHCI_XFER_ABORTING; 2600 xfer->status = status; /* make software ignore it */ 2601 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 2602 usb_rem_task(xfer->pipe->device, &UXFER(xfer)->abort_task); 2603 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 2604 for (std = ii->stdstart; std != NULL; std = std->link.std) { 2605 UHCI_STD_SYNC(sc, std, 2606 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2607 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2608 UHCI_STD_SYNC(sc, std, 2609 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2610 } 2611 splx(s); 2612 2613 /* 2614 * Step 2: Wait until we know hardware has finished any possible 2615 * use of the xfer. Also make sure the soft interrupt routine 2616 * has run. 2617 */ 2618 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 2619 s = splusb(); 2620 #ifdef USB_USE_SOFTINTR 2621 sc->sc_softwake = 1; 2622 #endif /* USB_USE_SOFTINTR */ 2623 usb_schedsoftintr(&sc->sc_bus); 2624 #ifdef USB_USE_SOFTINTR 2625 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 2626 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 2627 #endif /* USB_USE_SOFTINTR */ 2628 splx(s); 2629 2630 /* 2631 * Step 3: Execute callback. 2632 */ 2633 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 2634 s = splusb(); 2635 #ifdef DIAGNOSTIC 2636 ii->isdone = 1; 2637 #endif 2638 /* Do the wakeup first to avoid touching the xfer after the callback. */ 2639 wake = uxfer->uhci_xfer_flags & UHCI_XFER_ABORTWAIT; 2640 uxfer->uhci_xfer_flags &= ~(UHCI_XFER_ABORTING | UHCI_XFER_ABORTWAIT); 2641 uhci_transfer_complete(xfer); 2642 if (wake) 2643 wakeup(&uxfer->uhci_xfer_flags); 2644 splx(s); 2645 } 2646 2647 /* 2648 * Perform any UHCI-specific transfer completion operations, then 2649 * call usb_transfer_complete(). 2650 */ 2651 Static void 2652 uhci_transfer_complete(usbd_xfer_handle xfer) 2653 { 2654 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2655 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2656 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2657 uhci_soft_td_t *p; 2658 struct usb_buffer_dma *ub = &UXFER(xfer)->dmabuf; 2659 int i, isread, n; 2660 int is_mbuf; 2661 2662 /* XXX, must be an easier way to detect reads... */ 2663 isread = ((xfer->rqflags & URQ_REQUEST) && 2664 (xfer->request.bmRequestType & UT_READ)) || 2665 (xfer->pipe->endpoint->edesc->bEndpointAddress & UE_DIR_IN); 2666 2667 if (ub) 2668 usb_sync_buffer_dma(&sc->sc_dmatag, ub, 2669 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2670 2671 uhci_aux_dma_sync(sc, &UXFER(xfer)->aux, 2672 isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2673 2674 is_mbuf = UXFER(xfer)->mbuf != NULL; 2675 2676 /* Copy back from any auxillary buffers after a read operation. */ 2677 if (xfer->nframes == 0) { 2678 for (p = ii->stdstart; p != NULL; p = p->link.std) { 2679 if (p->aux_len) 2680 uhci_aux_dma_complete(p, &UXFER(xfer)->aux, 2681 is_mbuf, isread); 2682 } 2683 } else { 2684 if (xfer->nframes != 0) { 2685 /* Isoc transfer, do things differently. */ 2686 n = UXFER(xfer)->curframe; 2687 for (i = 0; i < xfer->nframes; i++) { 2688 p = upipe->u.iso.stds[n]; 2689 if (p->aux_len) 2690 uhci_aux_dma_complete(p, 2691 &UXFER(xfer)->aux, is_mbuf, isread); 2692 if (++n >= UHCI_VFRAMELIST_COUNT) 2693 n = 0; 2694 } 2695 } 2696 } 2697 2698 usb_transfer_complete(xfer); 2699 } 2700 2701 /* Close a device bulk pipe. */ 2702 void 2703 uhci_device_bulk_close(usbd_pipe_handle pipe) 2704 { 2705 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2706 usbd_device_handle dev = upipe->pipe.device; 2707 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2708 2709 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2710 pipe->endpoint->savedtoggle = upipe->nexttoggle; 2711 } 2712 2713 usbd_status 2714 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2715 { 2716 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2717 usbd_status err; 2718 2719 /* Insert last in queue. */ 2720 err = usb_insert_transfer_dma(xfer, &sc->sc_dmatag, 2721 &UXFER(xfer)->dmabuf); 2722 if (err) 2723 return (err); 2724 2725 /* 2726 * Pipe isn't running (otherwise err would be USBD_INPROG), 2727 * so start it first. 2728 */ 2729 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2730 } 2731 2732 usbd_status 2733 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2734 { 2735 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2736 usbd_status err; 2737 2738 if (sc->sc_dying) 2739 return (USBD_IOERROR); 2740 2741 #ifdef DIAGNOSTIC 2742 if (!(xfer->rqflags & URQ_REQUEST)) 2743 panic("uhci_device_ctrl_transfer: not a request"); 2744 #endif 2745 2746 err = uhci_device_request(xfer); 2747 if (err) 2748 return (err); 2749 2750 if (sc->sc_bus.use_polling) 2751 uhci_waitintr(sc, xfer); 2752 return (USBD_IN_PROGRESS); 2753 } 2754 2755 usbd_status 2756 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2757 { 2758 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2759 usbd_status err; 2760 2761 /* Insert last in queue. */ 2762 err = usb_insert_transfer_dma(xfer, &sc->sc_dmatag, 2763 &UXFER(xfer)->dmabuf); 2764 if (err) 2765 return (err); 2766 2767 /* 2768 * Pipe isn't running (otherwise err would be USBD_INPROG), 2769 * so start it first. 2770 */ 2771 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2772 } 2773 2774 usbd_status 2775 uhci_device_intr_start(usbd_xfer_handle xfer) 2776 { 2777 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2778 usbd_device_handle dev = upipe->pipe.device; 2779 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2780 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2781 uhci_soft_td_t *data, *dataend; 2782 uhci_soft_qh_t *sqh; 2783 usbd_status err; 2784 int isread, endpt; 2785 int i, s; 2786 2787 if (sc->sc_dying) 2788 return (USBD_IOERROR); 2789 2790 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2791 xfer, xfer->length, xfer->flags)); 2792 2793 #ifdef DIAGNOSTIC 2794 if (xfer->rqflags & URQ_REQUEST) 2795 panic("uhci_device_intr_transfer: a request"); 2796 #endif 2797 2798 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2799 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2800 sqh = upipe->u.bulk.sqh; 2801 2802 upipe->u.intr.isread = isread; 2803 2804 err = uhci_alloc_std_chain(upipe, sc, xfer->length, isread, xfer->flags, 2805 xfer, &data, &dataend); 2806 if (err) 2807 return (err); 2808 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2809 UHCI_STD_SYNC(sc, dataend, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2810 2811 #ifdef USB_DEBUG 2812 if (uhcidebug > 10) { 2813 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2814 uhci_dump_tds(data); 2815 uhci_dump_qh(upipe->u.intr.qhs[0]); 2816 } 2817 #endif 2818 2819 s = splusb(); 2820 /* Set up interrupt info. */ 2821 ii->xfer = xfer; 2822 ii->stdstart = data; 2823 ii->stdend = dataend; 2824 #ifdef DIAGNOSTIC 2825 if (!ii->isdone) { 2826 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2827 } 2828 ii->isdone = 0; 2829 #endif 2830 2831 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2832 upipe->u.intr.qhs[0])); 2833 for (i = 0; i < upipe->u.intr.npoll; i++) { 2834 sqh = upipe->u.intr.qhs[i]; 2835 sqh->elink = data; 2836 sqh->qh.qh_elink = htole32(UHCI_STD_DMAADDR(data) | UHCI_PTR_TD); 2837 UHCI_SQH_SYNC(sc, sqh, 2838 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2839 } 2840 uhci_add_intr_info(sc, ii); 2841 xfer->status = USBD_IN_PROGRESS; 2842 splx(s); 2843 2844 #ifdef USB_DEBUG 2845 if (uhcidebug > 10) { 2846 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2847 uhci_dump_tds(data); 2848 uhci_dump_qh(upipe->u.intr.qhs[0]); 2849 } 2850 #endif 2851 2852 return (USBD_IN_PROGRESS); 2853 } 2854 2855 /* Abort a device control request. */ 2856 void 2857 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2858 { 2859 DPRINTF(("uhci_device_ctrl_abort:\n")); 2860 uhci_abort_xfer(xfer, USBD_CANCELLED); 2861 } 2862 2863 /* Close a device control pipe. */ 2864 void 2865 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2866 { 2867 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2868 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2869 2870 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2871 uhci_free_std_norsv(sc, upipe->u.ctl.setup); 2872 uhci_free_std_norsv(sc, upipe->u.ctl.stat); 2873 usb_freemem(&sc->sc_dmatag, &upipe->u.ctl.reqdma); 2874 } 2875 2876 /* Abort a device interrupt request. */ 2877 void 2878 uhci_device_intr_abort(usbd_xfer_handle xfer) 2879 { 2880 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2881 if (xfer->pipe->intrxfer == xfer) { 2882 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2883 xfer->pipe->intrxfer = NULL; 2884 } 2885 uhci_abort_xfer(xfer, USBD_CANCELLED); 2886 } 2887 2888 /* Close a device interrupt pipe. */ 2889 void 2890 uhci_device_intr_close(usbd_pipe_handle pipe) 2891 { 2892 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2893 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2894 int i, npoll; 2895 int s; 2896 2897 /* Unlink descriptors from controller data structures. */ 2898 npoll = upipe->u.intr.npoll; 2899 s = splusb(); 2900 for (i = 0; i < npoll; i++) 2901 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2902 splx(s); 2903 2904 /* 2905 * We now have to wait for any activity on the physical 2906 * descriptors to stop. 2907 */ 2908 usb_delay_ms(&sc->sc_bus, 2); 2909 2910 for(i = 0; i < npoll; i++) 2911 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2912 free(upipe->u.intr.qhs, M_USBHC); 2913 2914 /* XXX free other resources */ 2915 } 2916 2917 usbd_status 2918 uhci_device_request(usbd_xfer_handle xfer) 2919 { 2920 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2921 usb_device_request_t *req = &xfer->request; 2922 usbd_device_handle dev = upipe->pipe.device; 2923 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2924 int addr = dev->address; 2925 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2926 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2927 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2928 uhci_soft_qh_t *sqh; 2929 int len; 2930 u_int32_t ls; 2931 usbd_status err; 2932 int isread; 2933 int s; 2934 2935 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2936 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2937 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2938 UGETW(req->wIndex), UGETW(req->wLength), 2939 addr, endpt)); 2940 2941 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2942 isread = req->bmRequestType & UT_READ; 2943 len = UGETW(req->wLength); 2944 2945 setup = upipe->u.ctl.setup; 2946 stat = upipe->u.ctl.stat; 2947 sqh = upipe->u.ctl.sqh; 2948 2949 /* Set up data transaction */ 2950 if (len != 0) { 2951 upipe->nexttoggle = 1; 2952 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2953 xfer, &data, &dataend); 2954 if (err) 2955 return (err); 2956 next = data; 2957 dataend->link.std = stat; 2958 dataend->td.td_link = 2959 htole32(UHCI_STD_DMAADDR(stat) | UHCI_PTR_VF | UHCI_PTR_TD); 2960 UHCI_STD_SYNC(sc, dataend, 2961 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2962 } else { 2963 next = stat; 2964 } 2965 upipe->u.ctl.length = len; 2966 2967 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2968 USB_MEM_SYNC(&sc->sc_dmatag, &upipe->u.ctl.reqdma, 2969 BUS_DMASYNC_PREWRITE); 2970 2971 setup->link.std = next; 2972 setup->td.td_link = htole32(UHCI_STD_DMAADDR(next) | UHCI_PTR_VF | UHCI_PTR_TD); 2973 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2974 UHCI_TD_ACTIVE); 2975 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2976 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2977 UHCI_STD_SYNC(sc, setup, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2978 2979 stat->link.std = NULL; 2980 stat->td.td_link = htole32(UHCI_PTR_T); 2981 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2982 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2983 stat->td.td_token = 2984 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2985 UHCI_TD_IN (0, endpt, addr, 1)); 2986 stat->td.td_buffer = htole32(0); 2987 UHCI_STD_SYNC(sc, stat, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 2988 2989 #ifdef USB_DEBUG 2990 if (uhcidebug > 10) { 2991 DPRINTF(("uhci_device_request: before transfer\n")); 2992 uhci_dump_tds(setup); 2993 } 2994 #endif 2995 2996 /* Set up interrupt info. */ 2997 ii->xfer = xfer; 2998 ii->stdstart = setup; 2999 ii->stdend = stat; 3000 #ifdef DIAGNOSTIC 3001 if (!ii->isdone) { 3002 printf("uhci_device_request: not done, ii=%p\n", ii); 3003 } 3004 ii->isdone = 0; 3005 #endif 3006 3007 sqh->elink = setup; 3008 sqh->qh.qh_elink = htole32(UHCI_STD_DMAADDR(setup) | UHCI_PTR_TD); 3009 UHCI_SQH_SYNC(sc, sqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3010 3011 s = splusb(); 3012 if (dev->speed == USB_SPEED_LOW) 3013 uhci_add_ls_ctrl(sc, sqh); 3014 else 3015 uhci_add_hs_ctrl(sc, sqh); 3016 uhci_add_intr_info(sc, ii); 3017 #ifdef USB_DEBUG 3018 if (uhcidebug > 12) { 3019 uhci_soft_td_t *std; 3020 uhci_soft_qh_t *xqh; 3021 uhci_soft_qh_t *sxqh; 3022 int maxqh = 0; 3023 uhci_physaddr_t link; 3024 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 3025 for (std = sc->sc_vframes[0].htd, link = 0; 3026 (link & UHCI_PTR_QH) == 0; 3027 std = std->link.std) { 3028 link = le32toh(std->td.td_link); 3029 uhci_dump_td(std); 3030 } 3031 sxqh = (uhci_soft_qh_t *)std; 3032 uhci_dump_qh(sxqh); 3033 for (xqh = sxqh; 3034 xqh != NULL; 3035 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 3036 xqh->hlink == xqh ? NULL : xqh->hlink)) { 3037 uhci_dump_qh(xqh); 3038 } 3039 DPRINTF(("Enqueued QH:\n")); 3040 uhci_dump_qh(sqh); 3041 uhci_dump_tds(sqh->elink); 3042 } 3043 #endif 3044 if (xfer->timeout && !sc->sc_bus.use_polling) { 3045 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 3046 uhci_timeout, ii); 3047 } 3048 xfer->status = USBD_IN_PROGRESS; 3049 splx(s); 3050 3051 return (USBD_NORMAL_COMPLETION); 3052 } 3053 3054 usbd_status 3055 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 3056 { 3057 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3058 usbd_status err; 3059 3060 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 3061 3062 /* Put it on our queue, */ 3063 err = usb_insert_transfer_dma(xfer, &sc->sc_dmatag, 3064 &UXFER(xfer)->dmabuf); 3065 3066 /* bail out on error, */ 3067 if (err && err != USBD_IN_PROGRESS) 3068 return (err); 3069 3070 /* XXX should check inuse here */ 3071 3072 /* insert into schedule, */ 3073 uhci_device_isoc_enter(xfer); 3074 3075 /* and start if the pipe wasn't running */ 3076 if (!err) 3077 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3078 3079 return (err); 3080 } 3081 3082 void 3083 uhci_device_isoc_enter(usbd_xfer_handle xfer) 3084 { 3085 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3086 usbd_device_handle dev = upipe->pipe.device; 3087 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 3088 struct iso *iso = &upipe->u.iso; 3089 uhci_soft_td_t *std; 3090 u_int32_t len, status; 3091 int s, i, isread, next, nframes, seg, segoff; 3092 struct usb_buffer_dma *ub = &UXFER(xfer)->dmabuf; 3093 bus_dma_segment_t *segs = USB_BUFFER_SEGS(ub); 3094 int nsegs = USB_BUFFER_NSEGS(ub); 3095 union uhci_bufptr bufptr; 3096 int is_mbuf; 3097 3098 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 3099 "nframes=%d\n", 3100 iso->inuse, iso->next, xfer, xfer->nframes)); 3101 3102 if (sc->sc_dying) 3103 return; 3104 3105 if (xfer->status == USBD_IN_PROGRESS) { 3106 /* This request has already been entered into the frame list */ 3107 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 3108 /* XXX */ 3109 } 3110 3111 #ifdef DIAGNOSTIC 3112 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 3113 printf("uhci_device_isoc_enter: overflow!\n"); 3114 #endif 3115 3116 next = iso->next; 3117 if (next == -1) { 3118 /* Not in use yet, schedule it a few frames ahead. */ 3119 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 3120 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 3121 } 3122 3123 xfer->status = USBD_IN_PROGRESS; 3124 UXFER(xfer)->curframe = next; 3125 3126 seg = 0; 3127 segoff = 0; 3128 uhci_bufptr_init(&bufptr, UXFER(xfer)); 3129 is_mbuf = UXFER(xfer)->mbuf != NULL; 3130 isread = xfer->pipe->endpoint->edesc->bEndpointAddress & UE_DIR_IN; 3131 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 3132 UHCI_TD_ACTIVE | 3133 UHCI_TD_IOS); 3134 nframes = xfer->nframes; 3135 s = splusb(); 3136 for (i = 0; i < nframes; i++) { 3137 std = iso->stds[next]; 3138 if (++next >= UHCI_VFRAMELIST_COUNT) 3139 next = 0; 3140 len = xfer->frlengths[i]; 3141 USB_KASSERT2(seg < nsegs, 3142 ("uhci_device_isoc_enter: too few segments")); 3143 if (len + segoff > segs[seg].ds_len) { 3144 /* UHCI can't handle non-contiguous data. */ 3145 uhci_aux_dma_alloc(std, &UXFER(xfer)->aux, &bufptr, 3146 len); 3147 3148 /* prepare aux DMA */ 3149 uhci_aux_dma_prepare(std, is_mbuf, isread); 3150 std->td.td_buffer = htole32(std->aux_dma); 3151 3152 /* skip handled segments */ 3153 segoff += len; 3154 while (segoff >= segs[seg].ds_len) { 3155 USB_KASSERT2(seg < nsegs - 1 || 3156 segoff == segs[seg].ds_len, 3157 ("uhci_device_isoc_enter: overlap2")); 3158 segoff -= segs[seg].ds_len; 3159 seg++; 3160 } 3161 } else { 3162 std->td.td_buffer = 3163 htole32(segs[seg].ds_addr + segoff); 3164 segoff += len; 3165 if (segoff >= segs[seg].ds_len) { 3166 USB_KASSERT2(segoff == segs[seg].ds_len, 3167 ("uhci_device_isoc_enter: overlap")); 3168 segoff = 0; 3169 seg++; 3170 } 3171 } 3172 if (i == nframes - 1) 3173 status |= UHCI_TD_IOC; 3174 std->td.td_status = htole32(status); 3175 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 3176 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 3177 UHCI_STD_SYNC(sc, std, 3178 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3179 #ifdef USB_DEBUG 3180 if (uhcidebug > 5) { 3181 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 3182 uhci_dump_td(std); 3183 } 3184 #endif 3185 uhci_bufptr_advance(&bufptr, len, is_mbuf); 3186 } 3187 iso->next = next; 3188 iso->inuse += xfer->nframes; 3189 3190 uhci_aux_dma_sync(sc, &UXFER(xfer)->aux, 3191 isread ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 3192 3193 splx(s); 3194 } 3195 3196 usbd_status 3197 uhci_device_isoc_start(usbd_xfer_handle xfer) 3198 { 3199 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3200 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 3201 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 3202 uhci_soft_td_t *end; 3203 int s, i; 3204 3205 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 3206 3207 if (sc->sc_dying) 3208 return (USBD_IOERROR); 3209 3210 #ifdef DIAGNOSTIC 3211 if (xfer->status != USBD_IN_PROGRESS) 3212 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 3213 #endif 3214 3215 /* Find the last TD */ 3216 i = UXFER(xfer)->curframe + xfer->nframes; 3217 if (i >= UHCI_VFRAMELIST_COUNT) 3218 i -= UHCI_VFRAMELIST_COUNT; 3219 end = upipe->u.iso.stds[i]; 3220 3221 #ifdef DIAGNOSTIC 3222 if (end == NULL) { 3223 printf("uhci_device_isoc_start: end == NULL\n"); 3224 return (USBD_INVAL); 3225 } 3226 #endif 3227 3228 s = splusb(); 3229 3230 /* Set up interrupt info. */ 3231 ii->xfer = xfer; 3232 ii->stdstart = end; 3233 ii->stdend = end; 3234 #ifdef DIAGNOSTIC 3235 if (!ii->isdone) 3236 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 3237 ii->isdone = 0; 3238 #endif 3239 uhci_add_intr_info(sc, ii); 3240 3241 splx(s); 3242 3243 return (USBD_IN_PROGRESS); 3244 } 3245 3246 void 3247 uhci_device_isoc_abort(usbd_xfer_handle xfer) 3248 { 3249 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3250 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 3251 uhci_soft_td_t **stds = upipe->u.iso.stds; 3252 uhci_soft_td_t *std; 3253 int i, n, s, nframes, maxlen, len; 3254 3255 s = splusb(); 3256 3257 /* Transfer is already done. */ 3258 if (xfer->status != USBD_NOT_STARTED && 3259 xfer->status != USBD_IN_PROGRESS) { 3260 splx(s); 3261 return; 3262 } 3263 3264 /* Give xfer the requested abort code. */ 3265 xfer->status = USBD_CANCELLED; 3266 3267 /* make hardware ignore it, */ 3268 nframes = xfer->nframes; 3269 n = UXFER(xfer)->curframe; 3270 maxlen = 0; 3271 for (i = 0; i < nframes; i++) { 3272 std = stds[n]; 3273 UHCI_STD_SYNC(sc, std, 3274 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 3275 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 3276 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 3277 UHCI_STD_SYNC(sc, std, 3278 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3279 if (len > maxlen) 3280 maxlen = len; 3281 if (++n >= UHCI_VFRAMELIST_COUNT) 3282 n = 0; 3283 } 3284 3285 /* and wait until we are sure the hardware has finished. */ 3286 delay(maxlen); 3287 3288 #ifdef DIAGNOSTIC 3289 UXFER(xfer)->iinfo.isdone = 1; 3290 #endif 3291 /* Run callback and remove from interrupt list. */ 3292 uhci_transfer_complete(xfer); 3293 3294 splx(s); 3295 } 3296 3297 void 3298 uhci_device_isoc_close(usbd_pipe_handle pipe) 3299 { 3300 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 3301 usbd_device_handle dev = upipe->pipe.device; 3302 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 3303 uhci_soft_td_t *std, *vstd; 3304 struct iso *iso; 3305 int i, s; 3306 3307 /* 3308 * Make sure all TDs are marked as inactive. 3309 * Wait for completion. 3310 * Unschedule. 3311 * Deallocate. 3312 */ 3313 iso = &upipe->u.iso; 3314 3315 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3316 UHCI_STD_SYNC(sc, iso->stds[i], 3317 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 3318 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 3319 UHCI_STD_SYNC(sc, iso->stds[i], 3320 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3321 } 3322 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 3323 3324 s = splusb(); 3325 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3326 std = iso->stds[i]; 3327 for (vstd = sc->sc_vframes[i].htd; 3328 vstd != NULL && vstd->link.std != std; 3329 vstd = vstd->link.std) 3330 ; 3331 if (vstd == NULL) { 3332 /*panic*/ 3333 printf("uhci_device_isoc_close: %p not found\n", std); 3334 splx(s); 3335 return; 3336 } 3337 vstd->link = std->link; 3338 vstd->td.td_link = std->td.td_link; 3339 uhci_free_std_norsv(sc, std); 3340 } 3341 splx(s); 3342 3343 free(iso->stds, M_USBHC); 3344 } 3345 3346 usbd_status 3347 uhci_setup_isoc(usbd_pipe_handle pipe) 3348 { 3349 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 3350 usbd_device_handle dev = upipe->pipe.device; 3351 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 3352 int addr = upipe->pipe.device->address; 3353 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 3354 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 3355 uhci_soft_td_t *std, *vstd; 3356 u_int32_t token; 3357 struct iso *iso; 3358 int i, s; 3359 3360 iso = &upipe->u.iso; 3361 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 3362 M_USBHC, M_WAITOK); 3363 3364 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 3365 UHCI_TD_OUT(0, endpt, addr, 0); 3366 3367 /* Allocate the TDs and mark as inactive; */ 3368 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3369 std = uhci_alloc_std_norsv(sc); 3370 if (std == 0) 3371 goto bad; 3372 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 3373 std->td.td_token = htole32(token); 3374 iso->stds[i] = std; 3375 } 3376 3377 /* Insert TDs into schedule. */ 3378 s = splusb(); 3379 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 3380 std = iso->stds[i]; 3381 vstd = sc->sc_vframes[i].htd; 3382 std->link = vstd->link; 3383 std->td.td_link = vstd->td.td_link; 3384 UHCI_STD_SYNC(sc, std, 3385 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3386 vstd->link.std = std; 3387 vstd->td.td_link = htole32(UHCI_STD_DMAADDR(std) | UHCI_PTR_TD); 3388 } 3389 splx(s); 3390 3391 iso->next = -1; 3392 iso->inuse = 0; 3393 3394 return (USBD_NORMAL_COMPLETION); 3395 3396 bad: 3397 while (--i >= 0) 3398 uhci_free_std_norsv(sc, iso->stds[i]); 3399 free(iso->stds, M_USBHC); 3400 return (USBD_NOMEM); 3401 } 3402 3403 void 3404 uhci_device_isoc_done(usbd_xfer_handle xfer) 3405 { 3406 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 3407 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3408 3409 DPRINTFN(4, ("uhci_isoc_done: length=%d, busy_free=0x%08x\n", 3410 xfer->actlen, xfer->busy_free)); 3411 3412 if (ii->xfer != xfer) 3413 /* Not on interrupt list, ignore it. */ 3414 return; 3415 3416 if (!uhci_active_intr_info(ii)) 3417 return; 3418 3419 #ifdef DIAGNOSTIC 3420 if (ii->stdend == NULL) { 3421 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 3422 #ifdef USB_DEBUG 3423 uhci_dump_ii(ii); 3424 #endif 3425 return; 3426 } 3427 #endif 3428 3429 /* Turn off the interrupt since it is active even if the TD is not. */ 3430 UHCI_STD_SYNC(sc, ii->stdend, 3431 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 3432 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 3433 UHCI_STD_SYNC(sc, ii->stdend, 3434 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3435 3436 uhci_del_intr_info(ii); /* remove from active list */ 3437 3438 #ifdef DIAGNOSTIC 3439 if (ii->stdend == NULL) { 3440 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 3441 #ifdef USB_DEBUG 3442 uhci_dump_ii(ii); 3443 #endif 3444 return; 3445 } 3446 #endif 3447 ii->stdstart = NULL; 3448 ii->stdend = NULL; 3449 } 3450 3451 void 3452 uhci_device_intr_done(usbd_xfer_handle xfer) 3453 { 3454 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 3455 uhci_softc_t *sc = ii->sc; 3456 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3457 uhci_soft_qh_t *sqh; 3458 int i, npoll; 3459 3460 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 3461 3462 npoll = upipe->u.intr.npoll; 3463 for(i = 0; i < npoll; i++) { 3464 sqh = upipe->u.intr.qhs[i]; 3465 sqh->elink = NULL; 3466 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3467 } 3468 uhci_free_std_chain(sc, ii->stdstart, NULL); 3469 3470 /* XXX Wasteful. */ 3471 if (xfer->pipe->repeat) { 3472 uhci_soft_td_t *data, *dataend; 3473 3474 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 3475 3476 /* This alloc cannot fail since we freed the chain above. */ 3477 uhci_alloc_std_chain(upipe, sc, xfer->length, 3478 upipe->u.intr.isread, xfer->flags, xfer, 3479 &data, &dataend); 3480 dataend->td.td_status |= htole32(UHCI_TD_IOC); 3481 UHCI_STD_SYNC(sc, dataend, 3482 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3483 3484 #ifdef USB_DEBUG 3485 if (uhcidebug > 10) { 3486 DPRINTF(("uhci_device_intr_done: data(1)\n")); 3487 uhci_dump_tds(data); 3488 uhci_dump_qh(upipe->u.intr.qhs[0]); 3489 } 3490 #endif 3491 3492 ii->stdstart = data; 3493 ii->stdend = dataend; 3494 #ifdef DIAGNOSTIC 3495 if (!ii->isdone) { 3496 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 3497 } 3498 ii->isdone = 0; 3499 #endif 3500 for (i = 0; i < npoll; i++) { 3501 sqh = upipe->u.intr.qhs[i]; 3502 sqh->elink = data; 3503 sqh->qh.qh_elink = 3504 htole32(UHCI_STD_DMAADDR(data) | UHCI_PTR_TD); 3505 UHCI_SQH_SYNC(sc, sqh, 3506 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3507 } 3508 xfer->status = USBD_IN_PROGRESS; 3509 /* The ii is already on the examined list, just leave it. */ 3510 } else { 3511 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 3512 if (uhci_active_intr_info(ii)) { 3513 uhci_del_intr_info(ii); 3514 ii->stdstart = NULL; 3515 ii->stdend = NULL; 3516 } 3517 } 3518 } 3519 3520 /* Deallocate request data structures */ 3521 void 3522 uhci_device_ctrl_done(usbd_xfer_handle xfer) 3523 { 3524 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 3525 uhci_softc_t *sc = ii->sc; 3526 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3527 3528 #ifdef DIAGNOSTIC 3529 if (!(xfer->rqflags & URQ_REQUEST)) 3530 panic("uhci_device_ctrl_done: not a request"); 3531 #endif 3532 3533 if (!uhci_active_intr_info(ii)) 3534 return; 3535 3536 uhci_del_intr_info(ii); /* remove from active list */ 3537 3538 if (upipe->pipe.device->speed == USB_SPEED_LOW) 3539 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 3540 else 3541 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 3542 3543 if (upipe->u.ctl.length != 0) 3544 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 3545 ii->stdstart = NULL; 3546 ii->stdend = NULL; 3547 3548 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 3549 } 3550 3551 /* Deallocate request data structures */ 3552 void 3553 uhci_device_bulk_done(usbd_xfer_handle xfer) 3554 { 3555 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 3556 uhci_softc_t *sc = ii->sc; 3557 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 3558 3559 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 3560 xfer, ii, sc, upipe)); 3561 3562 if (!uhci_active_intr_info(ii)) 3563 return; 3564 3565 uhci_del_intr_info(ii); /* remove from active list */ 3566 3567 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 3568 3569 uhci_free_std_chain(sc, ii->stdstart, NULL); 3570 ii->stdstart = NULL; 3571 ii->stdend = NULL; 3572 3573 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 3574 } 3575 3576 /* Add interrupt QH, called with vflock. */ 3577 void 3578 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3579 { 3580 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3581 uhci_soft_qh_t *eqh; 3582 3583 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 3584 3585 eqh = vf->eqh; 3586 sqh->hlink = eqh->hlink; 3587 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 3588 eqh->hlink = sqh; 3589 eqh->qh.qh_hlink = htole32(UHCI_SQH_DMAADDR(sqh) | UHCI_PTR_QH); 3590 vf->eqh = sqh; 3591 vf->bandwidth++; 3592 } 3593 3594 /* Remove interrupt QH. */ 3595 void 3596 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 3597 { 3598 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 3599 uhci_soft_qh_t *pqh; 3600 3601 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 3602 3603 /* See comment in uhci_remove_ctrl() */ 3604 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 3605 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3606 UHCI_SQH_SYNC(sc, sqh, 3607 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3608 delay(UHCI_QH_REMOVE_DELAY); 3609 } 3610 3611 pqh = uhci_find_prev_qh(vf->hqh, sqh); 3612 pqh->hlink = sqh->hlink; 3613 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 3614 UHCI_SQH_SYNC(sc, pqh, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 3615 delay(UHCI_QH_REMOVE_DELAY); 3616 if (vf->eqh == sqh) 3617 vf->eqh = pqh; 3618 vf->bandwidth--; 3619 } 3620 3621 usbd_status 3622 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 3623 { 3624 uhci_soft_qh_t *sqh; 3625 int i, npoll, s; 3626 u_int bestbw, bw, bestoffs, offs; 3627 3628 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 3629 if (ival == 0) { 3630 printf("uhci_setintr: 0 interval\n"); 3631 return (USBD_INVAL); 3632 } 3633 3634 if (ival > UHCI_VFRAMELIST_COUNT) 3635 ival = UHCI_VFRAMELIST_COUNT; 3636 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 3637 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 3638 3639 upipe->u.intr.npoll = npoll; 3640 upipe->u.intr.qhs = 3641 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 3642 3643 /* 3644 * Figure out which offset in the schedule that has most 3645 * bandwidth left over. 3646 */ 3647 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 3648 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 3649 for (bw = i = 0; i < npoll; i++) 3650 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 3651 if (bw < bestbw) { 3652 bestbw = bw; 3653 bestoffs = offs; 3654 } 3655 } 3656 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 3657 3658 for(i = 0; i < npoll; i++) { 3659 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 3660 sqh->elink = NULL; 3661 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 3662 sqh->pos = MOD(i * ival + bestoffs); 3663 } 3664 #undef MOD 3665 3666 s = splusb(); 3667 /* Enter QHs into the controller data structures. */ 3668 for(i = 0; i < npoll; i++) 3669 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 3670 splx(s); 3671 3672 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 3673 return (USBD_NORMAL_COMPLETION); 3674 } 3675 3676 /* Open a new pipe. */ 3677 usbd_status 3678 uhci_open(usbd_pipe_handle pipe) 3679 { 3680 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3681 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 3682 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 3683 usbd_status err; 3684 int ival; 3685 3686 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 3687 pipe, pipe->device->address, 3688 ed->bEndpointAddress, sc->sc_addr)); 3689 3690 upipe->aborting = 0; 3691 upipe->nexttoggle = pipe->endpoint->savedtoggle; 3692 3693 if (pipe->device->address == sc->sc_addr) { 3694 switch (ed->bEndpointAddress) { 3695 case USB_CONTROL_ENDPOINT: 3696 pipe->methods = &uhci_root_ctrl_methods; 3697 break; 3698 case UE_DIR_IN | UHCI_INTR_ENDPT: 3699 pipe->methods = &uhci_root_intr_methods; 3700 break; 3701 default: 3702 return (USBD_INVAL); 3703 } 3704 } else { 3705 switch (ed->bmAttributes & UE_XFERTYPE) { 3706 case UE_CONTROL: 3707 pipe->methods = &uhci_device_ctrl_methods; 3708 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 3709 if (upipe->u.ctl.sqh == NULL) 3710 goto bad; 3711 upipe->u.ctl.setup = uhci_alloc_std_norsv(sc); 3712 if (upipe->u.ctl.setup == NULL) { 3713 uhci_free_sqh(sc, upipe->u.ctl.sqh); 3714 goto bad; 3715 } 3716 upipe->u.ctl.stat = uhci_alloc_std_norsv(sc); 3717 if (upipe->u.ctl.stat == NULL) { 3718 uhci_free_sqh(sc, upipe->u.ctl.sqh); 3719 uhci_free_std_norsv(sc, upipe->u.ctl.setup); 3720 goto bad; 3721 } 3722 err = usb_allocmem(&sc->sc_dmatag, 3723 sizeof(usb_device_request_t), 3724 0, &upipe->u.ctl.reqdma); 3725 if (err) { 3726 uhci_free_sqh(sc, upipe->u.ctl.sqh); 3727 uhci_free_std_norsv(sc, upipe->u.ctl.setup); 3728 uhci_free_std_norsv(sc, upipe->u.ctl.stat); 3729 goto bad; 3730 } 3731 break; 3732 case UE_INTERRUPT: 3733 pipe->methods = &uhci_device_intr_methods; 3734 ival = pipe->interval; 3735 if (ival == USBD_DEFAULT_INTERVAL) 3736 ival = ed->bInterval; 3737 return (uhci_device_setintr(sc, upipe, ival)); 3738 case UE_ISOCHRONOUS: 3739 pipe->methods = &uhci_device_isoc_methods; 3740 return (uhci_setup_isoc(pipe)); 3741 case UE_BULK: 3742 pipe->methods = &uhci_device_bulk_methods; 3743 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 3744 if (upipe->u.bulk.sqh == NULL) 3745 goto bad; 3746 break; 3747 } 3748 } 3749 return (USBD_NORMAL_COMPLETION); 3750 3751 bad: 3752 return (USBD_NOMEM); 3753 } 3754 3755 /* 3756 * Data structures and routines to emulate the root hub. 3757 */ 3758 const usb_device_descriptor_t uhci_devd = { 3759 USB_DEVICE_DESCRIPTOR_SIZE, 3760 UDESC_DEVICE, /* type */ 3761 {0x00, 0x01}, /* USB version */ 3762 UDCLASS_HUB, /* class */ 3763 UDSUBCLASS_HUB, /* subclass */ 3764 UDPROTO_FSHUB, /* protocol */ 3765 64, /* max packet */ 3766 {0},{0},{0x00,0x01}, /* device id */ 3767 1,2,0, /* string indicies */ 3768 1 /* # of configurations */ 3769 }; 3770 3771 const usb_config_descriptor_t uhci_confd = { 3772 USB_CONFIG_DESCRIPTOR_SIZE, 3773 UDESC_CONFIG, 3774 {USB_CONFIG_DESCRIPTOR_SIZE + 3775 USB_INTERFACE_DESCRIPTOR_SIZE + 3776 USB_ENDPOINT_DESCRIPTOR_SIZE}, 3777 1, 3778 1, 3779 0, 3780 UC_ATTR_MBO | UC_SELF_POWERED, 3781 0 /* max power */ 3782 }; 3783 3784 const usb_interface_descriptor_t uhci_ifcd = { 3785 USB_INTERFACE_DESCRIPTOR_SIZE, 3786 UDESC_INTERFACE, 3787 0, 3788 0, 3789 1, 3790 UICLASS_HUB, 3791 UISUBCLASS_HUB, 3792 UIPROTO_FSHUB, 3793 0 3794 }; 3795 3796 const usb_endpoint_descriptor_t uhci_endpd = { 3797 USB_ENDPOINT_DESCRIPTOR_SIZE, 3798 UDESC_ENDPOINT, 3799 UE_DIR_IN | UHCI_INTR_ENDPT, 3800 UE_INTERRUPT, 3801 {8}, 3802 255 3803 }; 3804 3805 const usb_hub_descriptor_t uhci_hubd_piix = { 3806 USB_HUB_DESCRIPTOR_SIZE, 3807 UDESC_HUB, 3808 2, 3809 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 3810 50, /* power on to power good */ 3811 0, 3812 { 0x00 }, /* both ports are removable */ 3813 { 0 }, 3814 }; 3815 3816 int 3817 uhci_str(usb_string_descriptor_t *p, int l, const char *s) 3818 { 3819 int i; 3820 3821 if (l == 0) 3822 return (0); 3823 p->bLength = 2 * strlen(s) + 2; 3824 if (l == 1) 3825 return (1); 3826 p->bDescriptorType = UDESC_STRING; 3827 l -= 2; 3828 for (i = 0; s[i] && l > 1; i++, l -= 2) 3829 USETW2(p->bString[i], 0, s[i]); 3830 return (2*i+2); 3831 } 3832 3833 /* 3834 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3835 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3836 * should not be used by the USB subsystem. As we cannot issue a 3837 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3838 * will be enabled as part of the reset. 3839 * 3840 * On the VT83C572, the port cannot be successfully enabled until the 3841 * outstanding "port enable change" and "connection status change" 3842 * events have been reset. 3843 */ 3844 Static usbd_status 3845 uhci_portreset(uhci_softc_t *sc, int index) 3846 { 3847 int lim, port, x; 3848 3849 if (index == 1) 3850 port = UHCI_PORTSC1; 3851 else if (index == 2) 3852 port = UHCI_PORTSC2; 3853 else 3854 return (USBD_IOERROR); 3855 3856 x = URWMASK(UREAD2(sc, port)); 3857 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3858 3859 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3860 3861 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3862 index, UREAD2(sc, port))); 3863 3864 x = URWMASK(UREAD2(sc, port)); 3865 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3866 3867 delay(100); 3868 3869 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3870 index, UREAD2(sc, port))); 3871 3872 x = URWMASK(UREAD2(sc, port)); 3873 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3874 3875 for (lim = 10; --lim > 0;) { 3876 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3877 3878 x = UREAD2(sc, port); 3879 3880 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3881 index, lim, x)); 3882 3883 if (!(x & UHCI_PORTSC_CCS)) { 3884 /* 3885 * No device is connected (or was disconnected 3886 * during reset). Consider the port reset. 3887 * The delay must be long enough to ensure on 3888 * the initial iteration that the device 3889 * connection will have been registered. 50ms 3890 * appears to be sufficient, but 20ms is not. 3891 */ 3892 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3893 index, lim)); 3894 break; 3895 } 3896 3897 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3898 /* 3899 * Port enabled changed and/or connection 3900 * status changed were set. Reset either or 3901 * both raised flags (by writing a 1 to that 3902 * bit), and wait again for state to settle. 3903 */ 3904 UWRITE2(sc, port, URWMASK(x) | 3905 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3906 continue; 3907 } 3908 3909 if (x & UHCI_PORTSC_PE) 3910 /* Port is enabled */ 3911 break; 3912 3913 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3914 } 3915 3916 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3917 index, UREAD2(sc, port))); 3918 3919 if (lim <= 0) { 3920 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3921 return (USBD_TIMEOUT); 3922 } 3923 3924 sc->sc_isreset = 1; 3925 return (USBD_NORMAL_COMPLETION); 3926 } 3927 3928 /* 3929 * Simulate a hardware hub by handling all the necessary requests. 3930 */ 3931 usbd_status 3932 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3933 { 3934 usbd_status err; 3935 3936 /* Insert last in queue. */ 3937 err = usb_insert_transfer(xfer); 3938 if (err) 3939 return (err); 3940 3941 /* 3942 * Pipe isn't running (otherwise err would be USBD_INPROG), 3943 * so start it first. 3944 */ 3945 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3946 } 3947 3948 usbd_status 3949 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3950 { 3951 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3952 usb_device_request_t *req; 3953 void *buf = NULL; 3954 int port, x; 3955 int s, len, value, index, status, change, l, totlen = 0; 3956 usb_port_status_t ps; 3957 usbd_status err; 3958 3959 if (sc->sc_dying) 3960 return (USBD_IOERROR); 3961 3962 #ifdef DIAGNOSTIC 3963 if (!(xfer->rqflags & URQ_REQUEST)) 3964 panic("uhci_root_ctrl_transfer: not a request"); 3965 #endif 3966 req = &xfer->request; 3967 3968 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3969 req->bmRequestType, req->bRequest)); 3970 3971 len = UGETW(req->wLength); 3972 value = UGETW(req->wValue); 3973 index = UGETW(req->wIndex); 3974 3975 if (len != 0) { 3976 /* mbuf transfer is not supported */ 3977 if (xfer->rqflags & URQ_DEV_MAP_MBUF) 3978 return (USBD_INVAL); 3979 buf = xfer->hcbuffer; 3980 } 3981 3982 #define C(x,y) ((x) | ((y) << 8)) 3983 switch(C(req->bRequest, req->bmRequestType)) { 3984 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3985 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3986 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3987 /* 3988 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3989 * for the integrated root hub. 3990 */ 3991 break; 3992 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3993 if (len > 0) { 3994 *(u_int8_t *)buf = sc->sc_conf; 3995 totlen = 1; 3996 } 3997 break; 3998 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3999 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 4000 if (len == 0) 4001 break; 4002 switch(value >> 8) { 4003 case UDESC_DEVICE: 4004 if ((value & 0xff) != 0) { 4005 err = USBD_IOERROR; 4006 goto ret; 4007 } 4008 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 4009 memcpy(buf, &uhci_devd, l); 4010 USETW(((usb_device_descriptor_t *)buf)->idVendor, 4011 sc->sc_id_vendor); 4012 break; 4013 case UDESC_CONFIG: 4014 if ((value & 0xff) != 0) { 4015 err = USBD_IOERROR; 4016 goto ret; 4017 } 4018 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 4019 memcpy(buf, &uhci_confd, l); 4020 buf = (char *)buf + l; 4021 len -= l; 4022 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 4023 totlen += l; 4024 memcpy(buf, &uhci_ifcd, l); 4025 buf = (char *)buf + l; 4026 len -= l; 4027 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 4028 totlen += l; 4029 memcpy(buf, &uhci_endpd, l); 4030 break; 4031 case UDESC_STRING: 4032 *(u_int8_t *)buf = 0; 4033 totlen = 1; 4034 switch (value & 0xff) { 4035 case 0: /* Language table */ 4036 if (len > 0) 4037 *(u_int8_t *)buf = 4; 4038 if (len >= 4) { 4039 USETW(((usb_string_descriptor_t *)buf)->bString[0], 0x0409); 4040 totlen = 4; 4041 } 4042 break; 4043 case 1: /* Vendor */ 4044 totlen = uhci_str(buf, len, sc->sc_vendor); 4045 break; 4046 case 2: /* Product */ 4047 totlen = uhci_str(buf, len, "UHCI root hub"); 4048 break; 4049 } 4050 break; 4051 default: 4052 err = USBD_IOERROR; 4053 goto ret; 4054 } 4055 break; 4056 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 4057 if (len > 0) { 4058 *(u_int8_t *)buf = 0; 4059 totlen = 1; 4060 } 4061 break; 4062 case C(UR_GET_STATUS, UT_READ_DEVICE): 4063 if (len > 1) { 4064 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 4065 totlen = 2; 4066 } 4067 break; 4068 case C(UR_GET_STATUS, UT_READ_INTERFACE): 4069 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 4070 if (len > 1) { 4071 USETW(((usb_status_t *)buf)->wStatus, 0); 4072 totlen = 2; 4073 } 4074 break; 4075 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 4076 if (value >= USB_MAX_DEVICES) { 4077 err = USBD_IOERROR; 4078 goto ret; 4079 } 4080 sc->sc_addr = value; 4081 break; 4082 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 4083 if (value != 0 && value != 1) { 4084 err = USBD_IOERROR; 4085 goto ret; 4086 } 4087 sc->sc_conf = value; 4088 break; 4089 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 4090 break; 4091 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 4092 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 4093 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 4094 err = USBD_IOERROR; 4095 goto ret; 4096 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 4097 break; 4098 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 4099 break; 4100 /* Hub requests */ 4101 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 4102 break; 4103 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 4104 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 4105 "port=%d feature=%d\n", 4106 index, value)); 4107 if (index == 1) 4108 port = UHCI_PORTSC1; 4109 else if (index == 2) 4110 port = UHCI_PORTSC2; 4111 else { 4112 err = USBD_IOERROR; 4113 goto ret; 4114 } 4115 switch(value) { 4116 case UHF_PORT_ENABLE: 4117 x = URWMASK(UREAD2(sc, port)); 4118 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 4119 break; 4120 case UHF_PORT_SUSPEND: 4121 x = URWMASK(UREAD2(sc, port)); 4122 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 4123 break; 4124 case UHF_PORT_RESET: 4125 x = URWMASK(UREAD2(sc, port)); 4126 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 4127 break; 4128 case UHF_C_PORT_CONNECTION: 4129 x = URWMASK(UREAD2(sc, port)); 4130 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 4131 break; 4132 case UHF_C_PORT_ENABLE: 4133 x = URWMASK(UREAD2(sc, port)); 4134 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 4135 break; 4136 case UHF_C_PORT_OVER_CURRENT: 4137 x = URWMASK(UREAD2(sc, port)); 4138 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 4139 break; 4140 case UHF_C_PORT_RESET: 4141 sc->sc_isreset = 0; 4142 err = USBD_NORMAL_COMPLETION; 4143 goto ret; 4144 case UHF_PORT_CONNECTION: 4145 case UHF_PORT_OVER_CURRENT: 4146 case UHF_PORT_POWER: 4147 case UHF_PORT_LOW_SPEED: 4148 case UHF_C_PORT_SUSPEND: 4149 default: 4150 err = USBD_IOERROR; 4151 goto ret; 4152 } 4153 break; 4154 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 4155 if (index == 1) 4156 port = UHCI_PORTSC1; 4157 else if (index == 2) 4158 port = UHCI_PORTSC2; 4159 else { 4160 err = USBD_IOERROR; 4161 goto ret; 4162 } 4163 if (len > 0) { 4164 *(u_int8_t *)buf = 4165 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 4166 UHCI_PORTSC_LS_SHIFT; 4167 totlen = 1; 4168 } 4169 break; 4170 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 4171 if (len == 0) 4172 break; 4173 if ((value & 0xff) != 0) { 4174 err = USBD_IOERROR; 4175 goto ret; 4176 } 4177 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 4178 totlen = l; 4179 memcpy(buf, &uhci_hubd_piix, l); 4180 break; 4181 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 4182 if (len != 4) { 4183 err = USBD_IOERROR; 4184 goto ret; 4185 } 4186 memset(buf, 0, len); 4187 totlen = len; 4188 break; 4189 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 4190 if (index == 1) 4191 port = UHCI_PORTSC1; 4192 else if (index == 2) 4193 port = UHCI_PORTSC2; 4194 else { 4195 err = USBD_IOERROR; 4196 goto ret; 4197 } 4198 if (len != 4) { 4199 err = USBD_IOERROR; 4200 goto ret; 4201 } 4202 x = UREAD2(sc, port); 4203 status = change = 0; 4204 if (x & UHCI_PORTSC_CCS) 4205 status |= UPS_CURRENT_CONNECT_STATUS; 4206 if (x & UHCI_PORTSC_CSC) 4207 change |= UPS_C_CONNECT_STATUS; 4208 if (x & UHCI_PORTSC_PE) 4209 status |= UPS_PORT_ENABLED; 4210 if (x & UHCI_PORTSC_POEDC) 4211 change |= UPS_C_PORT_ENABLED; 4212 if (x & UHCI_PORTSC_OCI) 4213 status |= UPS_OVERCURRENT_INDICATOR; 4214 if (x & UHCI_PORTSC_OCIC) 4215 change |= UPS_C_OVERCURRENT_INDICATOR; 4216 if (x & UHCI_PORTSC_SUSP) 4217 status |= UPS_SUSPEND; 4218 if (x & UHCI_PORTSC_LSDA) 4219 status |= UPS_LOW_SPEED; 4220 status |= UPS_PORT_POWER; 4221 if (sc->sc_isreset) 4222 change |= UPS_C_PORT_RESET; 4223 USETW(ps.wPortStatus, status); 4224 USETW(ps.wPortChange, change); 4225 l = min(len, sizeof ps); 4226 memcpy(buf, &ps, l); 4227 totlen = l; 4228 break; 4229 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 4230 err = USBD_IOERROR; 4231 goto ret; 4232 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 4233 break; 4234 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 4235 if (index == 1) 4236 port = UHCI_PORTSC1; 4237 else if (index == 2) 4238 port = UHCI_PORTSC2; 4239 else { 4240 err = USBD_IOERROR; 4241 goto ret; 4242 } 4243 switch(value) { 4244 case UHF_PORT_ENABLE: 4245 x = URWMASK(UREAD2(sc, port)); 4246 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 4247 break; 4248 case UHF_PORT_SUSPEND: 4249 x = URWMASK(UREAD2(sc, port)); 4250 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 4251 break; 4252 case UHF_PORT_RESET: 4253 err = uhci_portreset(sc, index); 4254 goto ret; 4255 case UHF_PORT_POWER: 4256 /* Pretend we turned on power */ 4257 err = USBD_NORMAL_COMPLETION; 4258 goto ret; 4259 case UHF_C_PORT_CONNECTION: 4260 case UHF_C_PORT_ENABLE: 4261 case UHF_C_PORT_OVER_CURRENT: 4262 case UHF_PORT_CONNECTION: 4263 case UHF_PORT_OVER_CURRENT: 4264 case UHF_PORT_LOW_SPEED: 4265 case UHF_C_PORT_SUSPEND: 4266 case UHF_C_PORT_RESET: 4267 default: 4268 err = USBD_IOERROR; 4269 goto ret; 4270 } 4271 break; 4272 default: 4273 err = USBD_IOERROR; 4274 goto ret; 4275 } 4276 xfer->actlen = totlen; 4277 err = USBD_NORMAL_COMPLETION; 4278 ret: 4279 xfer->status = err; 4280 s = splusb(); 4281 uhci_transfer_complete(xfer); 4282 splx(s); 4283 return (USBD_IN_PROGRESS); 4284 } 4285 4286 /* Abort a root control request. */ 4287 void 4288 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 4289 { 4290 /* Nothing to do, all transfers are synchronous. */ 4291 } 4292 4293 /* Close the root pipe. */ 4294 void 4295 uhci_root_ctrl_close(usbd_pipe_handle pipe) 4296 { 4297 DPRINTF(("uhci_root_ctrl_close\n")); 4298 } 4299 4300 /* Abort a root interrupt request. */ 4301 void 4302 uhci_root_intr_abort(usbd_xfer_handle xfer) 4303 { 4304 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 4305 4306 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 4307 sc->sc_intr_xfer = NULL; 4308 4309 if (xfer->pipe->intrxfer == xfer) { 4310 DPRINTF(("uhci_root_intr_abort: remove\n")); 4311 xfer->pipe->intrxfer = 0; 4312 } 4313 xfer->status = USBD_CANCELLED; 4314 #ifdef DIAGNOSTIC 4315 UXFER(xfer)->iinfo.isdone = 1; 4316 #endif 4317 uhci_transfer_complete(xfer); 4318 } 4319 4320 usbd_status 4321 uhci_root_intr_transfer(usbd_xfer_handle xfer) 4322 { 4323 usbd_status err; 4324 4325 /* Insert last in queue. */ 4326 err = usb_insert_transfer(xfer); 4327 if (err) 4328 return (err); 4329 4330 /* 4331 * Pipe isn't running (otherwise err would be USBD_INPROG), 4332 * so start it first. 4333 */ 4334 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 4335 } 4336 4337 /* Start a transfer on the root interrupt pipe */ 4338 usbd_status 4339 uhci_root_intr_start(usbd_xfer_handle xfer) 4340 { 4341 usbd_pipe_handle pipe = xfer->pipe; 4342 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 4343 4344 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 4345 xfer, xfer->length, xfer->flags)); 4346 4347 if (sc->sc_dying) 4348 return (USBD_IOERROR); 4349 4350 if (xfer->rqflags & URQ_DEV_MAP_MBUF) 4351 return (USBD_INVAL); /* mbuf transfer is not supported */ 4352 4353 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 4354 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 4355 sc->sc_intr_xfer = xfer; 4356 return (USBD_IN_PROGRESS); 4357 } 4358 4359 /* Close the root interrupt pipe. */ 4360 void 4361 uhci_root_intr_close(usbd_pipe_handle pipe) 4362 { 4363 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 4364 4365 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 4366 sc->sc_intr_xfer = NULL; 4367 DPRINTF(("uhci_root_intr_close\n")); 4368 } 4369
Indexes created Tue Sep 30 17:09:57 GMT 2025