uhci.c revision 1.49
1 /* $NetBSD: uhci.c,v 1.49 1999/09/11 08:19:26 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * USB Universal Host Controller driver. 42 * Handles e.g. PIIX3 and PIIX4. 43 * 44 * Data sheets: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 45 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 46 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 47 * USB spec: http://www.usb.org/developers/data/usb11.pdf 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/malloc.h> 54 #if defined(__NetBSD__) || defined(__OpenBSD__) 55 #include <sys/device.h> 56 #elif defined(__FreeBSD__) 57 #include <sys/module.h> 58 #include <sys/bus.h> 59 #endif 60 #include <sys/proc.h> 61 #include <sys/queue.h> 62 #include <sys/select.h> 63 64 #if defined(__FreeBSD__) 65 #include <machine/bus_pio.h> 66 #endif 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/uhcireg.h> 77 #include <dev/usb/uhcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 86 87 #if defined(__OpenBSD__) 88 struct cfdriver uhci_cd = { 89 NULL, "uhci", DV_DULL 90 }; 91 #endif 92 93 /* 94 * The UHCI controller is little endian, so on big endian machines 95 * the data strored in memory needs to be swapped. 96 */ 97 #if BYTE_ORDER == BIG_ENDIAN 98 #define LE(x) (bswap32(x)) 99 #else 100 #define LE(x) (x) 101 #endif 102 103 struct uhci_pipe { 104 struct usbd_pipe pipe; 105 uhci_intr_info_t *iinfo; 106 int nexttoggle; 107 /* Info needed for different pipe kinds. */ 108 union { 109 /* Control pipe */ 110 struct { 111 uhci_soft_qh_t *sqh; 112 usb_dma_t reqdma; 113 uhci_soft_td_t *setup, *stat; 114 u_int length; 115 } ctl; 116 /* Interrupt pipe */ 117 struct { 118 int npoll; 119 uhci_soft_qh_t **qhs; 120 } intr; 121 /* Bulk pipe */ 122 struct { 123 uhci_soft_qh_t *sqh; 124 u_int length; 125 int isread; 126 } bulk; 127 /* Iso pipe */ 128 struct iso { 129 uhci_soft_td_t **stds; 130 int next, inuse; 131 } iso; 132 } u; 133 }; 134 135 /* 136 * The uhci_intr_info free list can be global since they contain 137 * no dma specific data. The other free lists do. 138 */ 139 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 140 141 void uhci_busreset __P((uhci_softc_t *)); 142 void uhci_power __P((int, void *)); 143 usbd_status uhci_run __P((uhci_softc_t *, int run)); 144 uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 145 void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 146 uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 147 void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 148 uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 149 void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 150 #if 0 151 void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 152 uhci_intr_info_t *)); 153 void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 154 #endif 155 156 void uhci_free_std_chain __P((uhci_softc_t *, 157 uhci_soft_td_t *, uhci_soft_td_t *)); 158 usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, uhci_softc_t *, 159 int, int, int, usb_dma_t *, 160 uhci_soft_td_t **, 161 uhci_soft_td_t **)); 162 void uhci_timo __P((void *)); 163 void uhci_waitintr __P((uhci_softc_t *, usbd_request_handle)); 164 void uhci_check_intr __P((uhci_softc_t *, uhci_intr_info_t *)); 165 void uhci_idone __P((uhci_intr_info_t *)); 166 void uhci_abort_req __P((usbd_request_handle, usbd_status status)); 167 void uhci_abort_req_end __P((void *v)); 168 void uhci_timeout __P((void *)); 169 void uhci_wakeup_ctrl __P((void *, int, int, void *, int)); 170 void uhci_lock_frames __P((uhci_softc_t *)); 171 void uhci_unlock_frames __P((uhci_softc_t *)); 172 void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 173 void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 174 void uhci_remove_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 175 void uhci_remove_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 176 int uhci_str __P((usb_string_descriptor_t *, int, char *)); 177 usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 178 void uhci_device_isoc_enter __P((usbd_request_handle)); 179 180 void uhci_wakeup_cb __P((usbd_request_handle reqh)); 181 182 usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, u_int32_t)); 183 void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 184 185 usbd_status uhci_device_ctrl_transfer __P((usbd_request_handle)); 186 usbd_status uhci_device_ctrl_start __P((usbd_request_handle)); 187 void uhci_device_ctrl_abort __P((usbd_request_handle)); 188 void uhci_device_ctrl_close __P((usbd_pipe_handle)); 189 void uhci_device_ctrl_done __P((usbd_request_handle)); 190 191 usbd_status uhci_device_intr_transfer __P((usbd_request_handle)); 192 usbd_status uhci_device_intr_start __P((usbd_request_handle)); 193 void uhci_device_intr_abort __P((usbd_request_handle)); 194 void uhci_device_intr_close __P((usbd_pipe_handle)); 195 void uhci_device_intr_done __P((usbd_request_handle)); 196 197 usbd_status uhci_device_bulk_transfer __P((usbd_request_handle)); 198 usbd_status uhci_device_bulk_start __P((usbd_request_handle)); 199 void uhci_device_bulk_abort __P((usbd_request_handle)); 200 void uhci_device_bulk_close __P((usbd_pipe_handle)); 201 void uhci_device_bulk_done __P((usbd_request_handle)); 202 203 usbd_status uhci_device_isoc_transfer __P((usbd_request_handle)); 204 usbd_status uhci_device_isoc_start __P((usbd_request_handle)); 205 void uhci_device_isoc_abort __P((usbd_request_handle)); 206 void uhci_device_isoc_close __P((usbd_pipe_handle)); 207 void uhci_device_isoc_done __P((usbd_request_handle)); 208 209 usbd_status uhci_root_ctrl_transfer __P((usbd_request_handle)); 210 usbd_status uhci_root_ctrl_start __P((usbd_request_handle)); 211 void uhci_root_ctrl_abort __P((usbd_request_handle)); 212 void uhci_root_ctrl_close __P((usbd_pipe_handle)); 213 214 usbd_status uhci_root_intr_transfer __P((usbd_request_handle)); 215 usbd_status uhci_root_intr_start __P((usbd_request_handle)); 216 void uhci_root_intr_abort __P((usbd_request_handle)); 217 void uhci_root_intr_close __P((usbd_pipe_handle)); 218 void uhci_root_intr_done __P((usbd_request_handle)); 219 220 usbd_status uhci_open __P((usbd_pipe_handle)); 221 void uhci_poll __P((struct usbd_bus *)); 222 223 usbd_status uhci_device_request __P((usbd_request_handle reqh)); 224 225 void uhci_add_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 226 void uhci_remove_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 227 usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 228 struct uhci_pipe *pipe, int ival)); 229 230 void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 231 void uhci_noop __P((usbd_pipe_handle pipe)); 232 233 #ifdef USB_DEBUG 234 static void uhci_dumpregs __P((uhci_softc_t *)); 235 void uhci_dump_tds __P((uhci_soft_td_t *)); 236 void uhci_dump_qh __P((uhci_soft_qh_t *)); 237 void uhci_dump __P((void)); 238 void uhci_dump_td __P((uhci_soft_td_t *)); 239 #endif 240 241 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 242 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 243 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 244 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 245 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 246 247 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 248 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 249 250 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 251 252 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 253 254 #define UHCI_INTR_ENDPT 1 255 256 struct usbd_bus_methods uhci_bus_methods = { 257 uhci_open, 258 uhci_poll, 259 uhci_allocm, 260 uhci_freem, 261 }; 262 263 struct usbd_pipe_methods uhci_root_ctrl_methods = { 264 uhci_root_ctrl_transfer, 265 uhci_root_ctrl_start, 266 uhci_root_ctrl_abort, 267 uhci_root_ctrl_close, 268 uhci_noop, 269 0, 270 }; 271 272 struct usbd_pipe_methods uhci_root_intr_methods = { 273 uhci_root_intr_transfer, 274 uhci_root_intr_start, 275 uhci_root_intr_abort, 276 uhci_root_intr_close, 277 uhci_noop, 278 uhci_root_intr_done, 279 }; 280 281 struct usbd_pipe_methods uhci_device_ctrl_methods = { 282 uhci_device_ctrl_transfer, 283 uhci_device_ctrl_start, 284 uhci_device_ctrl_abort, 285 uhci_device_ctrl_close, 286 uhci_noop, 287 uhci_device_ctrl_done, 288 }; 289 290 struct usbd_pipe_methods uhci_device_intr_methods = { 291 uhci_device_intr_transfer, 292 uhci_device_intr_start, 293 uhci_device_intr_abort, 294 uhci_device_intr_close, 295 uhci_device_clear_toggle, 296 uhci_device_intr_done, 297 }; 298 299 struct usbd_pipe_methods uhci_device_bulk_methods = { 300 uhci_device_bulk_transfer, 301 uhci_device_bulk_start, 302 uhci_device_bulk_abort, 303 uhci_device_bulk_close, 304 uhci_device_clear_toggle, 305 uhci_device_bulk_done, 306 }; 307 308 struct usbd_pipe_methods uhci_device_isoc_methods = { 309 uhci_device_isoc_transfer, 310 uhci_device_isoc_start, 311 uhci_device_isoc_abort, 312 uhci_device_isoc_close, 313 uhci_noop, 314 uhci_device_isoc_done, 315 }; 316 317 void 318 uhci_busreset(sc) 319 uhci_softc_t *sc; 320 { 321 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 322 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 323 UHCICMD(sc, 0); /* do nothing */ 324 } 325 326 usbd_status 327 uhci_init(sc) 328 uhci_softc_t *sc; 329 { 330 usbd_status r; 331 int i, j; 332 uhci_soft_qh_t *csqh, *bsqh, *sqh; 333 uhci_soft_td_t *std; 334 335 DPRINTFN(1,("uhci_init: start\n")); 336 337 #if defined(USB_DEBUG) 338 if (uhcidebug > 2) 339 uhci_dumpregs(sc); 340 #endif 341 342 uhci_run(sc, 0); /* stop the controller */ 343 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 344 345 uhci_busreset(sc); 346 347 /* Allocate and initialize real frame array. */ 348 r = usb_allocmem(sc->sc_dmatag, 349 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 350 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 351 if (r != USBD_NORMAL_COMPLETION) 352 return (r); 353 sc->sc_pframes = KERNADDR(&sc->sc_dma); 354 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 355 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 356 357 /* Allocate the dummy QH where bulk traffic will be queued. */ 358 bsqh = uhci_alloc_sqh(sc); 359 if (!bsqh) 360 return (USBD_NOMEM); 361 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 362 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 363 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 364 365 /* Allocate the dummy QH where control traffic will be queued. */ 366 csqh = uhci_alloc_sqh(sc); 367 if (!csqh) 368 return (USBD_NOMEM); 369 csqh->hlink = bsqh; 370 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 371 csqh->qh.qh_elink = LE(UHCI_PTR_T); 372 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 373 374 /* 375 * Make all (virtual) frame list pointers point to the interrupt 376 * queue heads and the interrupt queue heads at the control 377 * queue head and point the physical frame list to the virtual. 378 */ 379 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 380 std = uhci_alloc_std(sc); 381 sqh = uhci_alloc_sqh(sc); 382 if (!std || !sqh) 383 return (USBD_NOMEM); 384 std->link.sqh = sqh; 385 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 386 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 387 std->td.td_token = LE(0); 388 std->td.td_buffer = LE(0); 389 sqh->hlink = csqh; 390 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 391 sqh->elink = 0; 392 sqh->qh.qh_elink = LE(UHCI_PTR_T); 393 sc->sc_vframes[i].htd = std; 394 sc->sc_vframes[i].etd = std; 395 sc->sc_vframes[i].hqh = sqh; 396 sc->sc_vframes[i].eqh = sqh; 397 for (j = i; 398 j < UHCI_FRAMELIST_COUNT; 399 j += UHCI_VFRAMELIST_COUNT) 400 sc->sc_pframes[j] = LE(std->physaddr); 401 } 402 403 LIST_INIT(&sc->sc_intrhead); 404 405 /* Set up the bus struct. */ 406 sc->sc_bus.methods = &uhci_bus_methods; 407 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 408 409 sc->sc_suspend = PWR_RESUME; 410 powerhook_establish(uhci_power, sc); 411 412 DPRINTFN(1,("uhci_init: enabling\n")); 413 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 414 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 415 416 return (uhci_run(sc, 1)); /* and here we go... */ 417 } 418 419 usbd_status 420 uhci_allocm(bus, dma, size) 421 struct usbd_bus *bus; 422 usb_dma_t *dma; 423 u_int32_t size; 424 { 425 struct uhci_softc *sc = (struct uhci_softc *)bus; 426 427 return (usb_allocmem(sc->sc_dmatag, size, 0, dma)); 428 } 429 430 void 431 uhci_freem(bus, dma) 432 struct usbd_bus *bus; 433 usb_dma_t *dma; 434 { 435 struct uhci_softc *sc = (struct uhci_softc *)bus; 436 437 usb_freemem(sc->sc_dmatag, dma); 438 } 439 440 #if !defined(__OpenBSD__) 441 /* 442 * Handle suspend/resume. 443 * 444 * We need to switch to polling mode here, because this routine is 445 * called from an intterupt context. This is all right since we 446 * are almost suspended anyway. 447 */ 448 void 449 uhci_power(why, v) 450 int why; 451 void *v; 452 { 453 uhci_softc_t *sc = v; 454 int cmd; 455 int s; 456 457 s = splusb(); 458 cmd = UREAD2(sc, UHCI_CMD); 459 460 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 461 sc, why, sc->sc_suspend, cmd)); 462 463 if (why != PWR_RESUME) { 464 #if defined(USB_DEBUG) 465 if (uhcidebug > 2) 466 uhci_dumpregs(sc); 467 #endif 468 if (sc->sc_has_timo) 469 usb_untimeout(uhci_timo, sc->sc_has_timo, 470 sc->sc_has_timo->timo_handle); 471 sc->sc_bus.use_polling = 1; 472 uhci_run(sc, 0); /* stop the controller */ 473 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 474 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 475 sc->sc_suspend = why; 476 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 477 } else { 478 /* 479 * XXX We should really do much more here in case the 480 * controller registers have been lost and BIOS has 481 * not restored them. 482 */ 483 sc->sc_suspend = why; 484 if (cmd & UHCI_CMD_RS) 485 uhci_run(sc, 0); /* in case BIOS has started it */ 486 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 487 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 488 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 489 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 490 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 491 uhci_run(sc, 1); /* and start traffic again */ 492 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 493 sc->sc_bus.use_polling = 0; 494 if (sc->sc_has_timo) 495 usb_timeout(uhci_timo, sc->sc_has_timo, 496 sc->sc_ival, sc->sc_has_timo->timo_handle); 497 #if defined(USB_DEBUG) 498 if (uhcidebug > 2) 499 uhci_dumpregs(sc); 500 #endif 501 } 502 splx(s); 503 } 504 #endif /* !defined(__OpenBSD__) */ 505 506 #ifdef USB_DEBUG 507 static void 508 uhci_dumpregs(sc) 509 uhci_softc_t *sc; 510 { 511 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 512 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 513 USBDEVNAME(sc->sc_bus.bdev), 514 UREAD2(sc, UHCI_CMD), 515 UREAD2(sc, UHCI_STS), 516 UREAD2(sc, UHCI_INTR), 517 UREAD2(sc, UHCI_FRNUM), 518 UREAD4(sc, UHCI_FLBASEADDR), 519 UREAD1(sc, UHCI_SOF), 520 UREAD2(sc, UHCI_PORTSC1), 521 UREAD2(sc, UHCI_PORTSC2))); 522 } 523 524 void 525 uhci_dump_td(p) 526 uhci_soft_td_t *p; 527 { 528 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 529 "token=0x%08lx buffer=0x%08lx\n", 530 p, (long)p->physaddr, 531 (long)LE(p->td.td_link), 532 (long)LE(p->td.td_status), 533 (long)LE(p->td.td_token), 534 (long)LE(p->td.td_buffer))); 535 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 536 "D=%d,maxlen=%d\n", 537 (int)LE(p->td.td_link), 538 "\20\1T\2Q\3VF", 539 (int)LE(p->td.td_status), 540 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 541 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 542 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 543 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 544 UHCI_TD_GET_PID(LE(p->td.td_token)), 545 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 546 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 547 UHCI_TD_GET_DT(LE(p->td.td_token)), 548 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 549 } 550 551 void 552 uhci_dump_qh(p) 553 uhci_soft_qh_t *p; 554 { 555 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 556 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 557 } 558 559 560 #if 0 561 void 562 uhci_dump() 563 { 564 uhci_softc_t *sc = uhci; 565 566 uhci_dumpregs(sc); 567 printf("intrs=%d\n", sc->sc_intrs); 568 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 569 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 570 } 571 #endif 572 573 void 574 uhci_dump_tds(std) 575 uhci_soft_td_t *std; 576 { 577 uhci_soft_td_t *p; 578 579 for(p = std; p; p = p->link.std) 580 uhci_dump_td(p); 581 } 582 #endif 583 584 /* 585 * This routine is executed periodically and simulates interrupts 586 * from the root controller interrupt pipe for port status change. 587 */ 588 void 589 uhci_timo(addr) 590 void *addr; 591 { 592 usbd_request_handle reqh = addr; 593 usbd_pipe_handle pipe = reqh->pipe; 594 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 595 int s; 596 u_char *p; 597 598 DPRINTFN(15, ("uhci_timo\n")); 599 600 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 601 602 p = KERNADDR(&reqh->dmabuf); 603 p[0] = 0; 604 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 605 p[0] |= 1<<1; 606 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 607 p[0] |= 1<<2; 608 if (p[0] == 0) 609 /* No change, try again in a while */ 610 return; 611 612 reqh->actlen = 1; 613 reqh->status = USBD_NORMAL_COMPLETION; 614 s = splusb(); 615 reqh->hcpriv = 0; 616 usb_transfer_complete(reqh); 617 splx(s); 618 } 619 620 void 621 uhci_root_intr_done(reqh) 622 usbd_request_handle reqh; 623 { 624 } 625 626 627 void 628 uhci_lock_frames(sc) 629 uhci_softc_t *sc; 630 { 631 int s = splusb(); 632 while (sc->sc_vflock) { 633 sc->sc_vflock |= UHCI_WANT_LOCK; 634 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 635 } 636 sc->sc_vflock = UHCI_HAS_LOCK; 637 splx(s); 638 } 639 640 void 641 uhci_unlock_frames(sc) 642 uhci_softc_t *sc; 643 { 644 int s = splusb(); 645 sc->sc_vflock &= ~UHCI_HAS_LOCK; 646 if (sc->sc_vflock & UHCI_WANT_LOCK) 647 wakeup(&sc->sc_vflock); 648 splx(s); 649 } 650 651 /* 652 * Allocate an interrupt information struct. A free list is kept 653 * for fast allocation. 654 */ 655 uhci_intr_info_t * 656 uhci_alloc_intr_info(sc) 657 uhci_softc_t *sc; 658 { 659 uhci_intr_info_t *ii; 660 661 ii = LIST_FIRST(&uhci_ii_free); 662 if (ii) 663 LIST_REMOVE(ii, list); 664 else { 665 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 666 } 667 ii->sc = sc; 668 return ii; 669 } 670 671 void 672 uhci_free_intr_info(ii) 673 uhci_intr_info_t *ii; 674 { 675 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 676 } 677 678 /* Add control QH, called at splusb(). */ 679 void 680 uhci_add_ctrl(sc, sqh) 681 uhci_softc_t *sc; 682 uhci_soft_qh_t *sqh; 683 { 684 uhci_soft_qh_t *eqh; 685 686 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 687 eqh = sc->sc_ctl_end; 688 sqh->hlink = eqh->hlink; 689 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 690 eqh->hlink = sqh; 691 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 692 sc->sc_ctl_end = sqh; 693 } 694 695 /* Remove control QH, called at splusb(). */ 696 void 697 uhci_remove_ctrl(sc, sqh) 698 uhci_softc_t *sc; 699 uhci_soft_qh_t *sqh; 700 { 701 uhci_soft_qh_t *pqh; 702 703 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 704 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 705 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 706 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 707 printf("uhci_remove_ctrl: QH not found\n"); 708 return; 709 } 710 #else 711 ; 712 #endif 713 pqh->hlink = sqh->hlink; 714 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 715 if (sc->sc_ctl_end == sqh) 716 sc->sc_ctl_end = pqh; 717 } 718 719 /* Add bulk QH, called at splusb(). */ 720 void 721 uhci_add_bulk(sc, sqh) 722 uhci_softc_t *sc; 723 uhci_soft_qh_t *sqh; 724 { 725 uhci_soft_qh_t *eqh; 726 727 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 728 eqh = sc->sc_bulk_end; 729 sqh->hlink = eqh->hlink; 730 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 731 eqh->hlink = sqh; 732 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 733 sc->sc_bulk_end = sqh; 734 } 735 736 /* Remove bulk QH, called at splusb(). */ 737 void 738 uhci_remove_bulk(sc, sqh) 739 uhci_softc_t *sc; 740 uhci_soft_qh_t *sqh; 741 { 742 uhci_soft_qh_t *pqh; 743 744 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 745 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 746 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 747 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 748 printf("uhci_remove_bulk: QH not found\n"); 749 return; 750 } 751 #else 752 ; 753 #endif 754 pqh->hlink = sqh->hlink; 755 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 756 if (sc->sc_bulk_end == sqh) 757 sc->sc_bulk_end = pqh; 758 } 759 760 int 761 uhci_intr(arg) 762 void *arg; 763 { 764 uhci_softc_t *sc = arg; 765 int status; 766 int ack; 767 uhci_intr_info_t *ii; 768 769 sc->sc_intrs++; 770 771 #if defined(USB_DEBUG) 772 if (uhcidebug > 15) { 773 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 774 uhci_dumpregs(sc); 775 } 776 #endif 777 778 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 779 if (sc->sc_suspend != PWR_RESUME) 780 printf("uhci_intr: suspended sts=0x%x\n", status); 781 #endif 782 783 status = UREAD2(sc, UHCI_STS); 784 ack = 0; 785 if (status & UHCI_STS_USBINT) 786 ack |= UHCI_STS_USBINT; 787 if (status & UHCI_STS_USBEI) 788 ack |= UHCI_STS_USBEI; 789 if (status & UHCI_STS_RD) { 790 ack |= UHCI_STS_RD; 791 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 792 } 793 if (status & UHCI_STS_HSE) { 794 ack |= UHCI_STS_HSE; 795 printf("%s: host controller process error\n", 796 USBDEVNAME(sc->sc_bus.bdev)); 797 } 798 if (status & UHCI_STS_HCPE) { 799 ack |= UHCI_STS_HCPE; 800 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 801 } 802 if (status & UHCI_STS_HCH) { 803 /* no acknowledge needed */ 804 printf("%s: host controller halted\n", 805 USBDEVNAME(sc->sc_bus.bdev)); 806 } 807 808 if (ack) /* acknowledge the ints */ 809 UWRITE2(sc, UHCI_STS, ack); 810 else /* nothing to acknowledge */ 811 return (0); 812 813 /* 814 * Interrupts on UHCI really suck. When the host controller 815 * interrupts because a transfer is completed there is no 816 * way of knowing which transfer it was. You can scan down 817 * the TDs and QHs of the previous frame to limit the search, 818 * but that assumes that the interrupt was not delayed by more 819 * than 1 ms, which may not always be true (e.g. after debug 820 * output on a slow console). 821 * We scan all interrupt descriptors to see if any have 822 * completed. 823 */ 824 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 825 uhci_check_intr(sc, ii); 826 827 DPRINTFN(10, ("uhci_intr: exit\n")); 828 829 return (1); 830 } 831 832 /* Check for an interrupt. */ 833 void 834 uhci_check_intr(sc, ii) 835 uhci_softc_t *sc; 836 uhci_intr_info_t *ii; 837 { 838 uhci_soft_td_t *std, *lstd; 839 u_int32_t status; 840 841 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 842 #ifdef DIAGNOSTIC 843 if (!ii) { 844 printf("uhci_check_intr: no ii? %p\n", ii); 845 return; 846 } 847 #endif 848 if (!ii->stdstart) 849 return; 850 lstd = ii->stdend; 851 #ifdef DIAGNOSTIC 852 if (!lstd) { 853 printf("uhci_check_intr: std==0\n"); 854 return; 855 } 856 #endif 857 /* 858 * If the last TD is still active we need to check whether there 859 * is a an error somewhere in the middle, or whether there was a 860 * short packet (SPD and not ACTIVE). 861 */ 862 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 863 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 864 for (std = ii->stdstart; std != lstd; std = std->link.std) { 865 status = LE(std->td.td_status); 866 if ((status & UHCI_TD_STALLED) || 867 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 868 UHCI_TD_SPD) 869 goto done; 870 } 871 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 872 ii, ii->stdstart)); 873 return; 874 } 875 done: 876 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 877 uhci_idone(ii); 878 } 879 880 void 881 uhci_idone(ii) 882 uhci_intr_info_t *ii; 883 { 884 usbd_request_handle reqh = ii->reqh; 885 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 886 uhci_soft_td_t *std; 887 u_int32_t status; 888 int actlen; 889 890 #ifdef DIAGNOSTIC 891 { 892 int s = splhigh(); 893 if (ii->isdone) { 894 splx(s); 895 printf("uhci_idone: ii=%p is done!\n", ii); 896 return; 897 } 898 ii->isdone = 1; 899 splx(s); 900 } 901 #endif 902 903 if (reqh->status == USBD_CANCELLED || 904 reqh->status == USBD_TIMEOUT) { 905 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 906 return; 907 } 908 909 if (reqh->nframes) { 910 /* Isoc transfer, do things differently. */ 911 uhci_soft_td_t **stds = upipe->u.iso.stds; 912 int i, n, nframes; 913 914 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 915 916 nframes = reqh->nframes; 917 actlen = 0; 918 n = reqh->hcprivint; 919 for (i = 0; i < nframes; i++) { 920 std = stds[n]; 921 #ifdef USB_DEBUG 922 if (uhcidebug > 5) { 923 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 924 uhci_dump_td(std); 925 } 926 #endif 927 if (++n >= UHCI_VFRAMELIST_COUNT) 928 n = 0; 929 status = LE(std->td.td_status); 930 actlen += UHCI_TD_GET_ACTLEN(status); 931 } 932 upipe->u.iso.inuse -= nframes; 933 reqh->actlen = actlen; 934 reqh->status = USBD_NORMAL_COMPLETION; 935 reqh->hcpriv = ii; 936 usb_transfer_complete(reqh); 937 return; 938 } 939 940 #ifdef USB_DEBUG 941 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 942 if (uhcidebug > 10) 943 uhci_dump_tds(ii->stdstart); 944 #endif 945 946 /* The transfer is done, compute actual length and status. */ 947 /* XXX Is this correct for control xfers? */ 948 actlen = 0; 949 for (std = ii->stdstart; std; std = std->link.std) { 950 status = LE(std->td.td_status); 951 if (status & UHCI_TD_ACTIVE) 952 break; 953 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 954 UHCI_TD_PID_SETUP) 955 actlen += UHCI_TD_GET_ACTLEN(status); 956 } 957 /* If there are left over TDs we need to update the toggle. */ 958 if (std) 959 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 960 961 status &= UHCI_TD_ERROR; 962 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 963 actlen, status)); 964 reqh->actlen = actlen; 965 if (status != 0) { 966 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 967 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 968 "status 0x%b\n", 969 reqh->pipe->device->address, 970 reqh->pipe->endpoint->edesc->bEndpointAddress, 971 (int)status, 972 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 973 "STALLED\30ACTIVE")); 974 if (status == UHCI_TD_STALLED) 975 reqh->status = USBD_STALLED; 976 else 977 reqh->status = USBD_IOERROR; /* more info XXX */ 978 } else { 979 reqh->status = USBD_NORMAL_COMPLETION; 980 } 981 reqh->hcpriv = ii; 982 usb_transfer_complete(reqh); 983 } 984 985 /* 986 * Called when a request does not complete. 987 */ 988 void 989 uhci_timeout(addr) 990 void *addr; 991 { 992 uhci_intr_info_t *ii = addr; 993 994 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 995 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 996 } 997 998 /* 999 * Wait here until controller claims to have an interrupt. 1000 * Then call uhci_intr and return. Use timeout to avoid waiting 1001 * too long. 1002 * Only used during boot when interrupts are not enabled yet. 1003 */ 1004 void 1005 uhci_waitintr(sc, reqh) 1006 uhci_softc_t *sc; 1007 usbd_request_handle reqh; 1008 { 1009 int timo = reqh->timeout; 1010 uhci_intr_info_t *ii; 1011 1012 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1013 1014 reqh->status = USBD_IN_PROGRESS; 1015 for (; timo >= 0; timo--) { 1016 usb_delay_ms(&sc->sc_bus, 1); 1017 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1018 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1019 uhci_intr(sc); 1020 if (reqh->status != USBD_IN_PROGRESS) 1021 return; 1022 } 1023 } 1024 1025 /* Timeout */ 1026 DPRINTF(("uhci_waitintr: timeout\n")); 1027 for (ii = LIST_FIRST(&sc->sc_intrhead); 1028 ii && ii->reqh != reqh; 1029 ii = LIST_NEXT(ii, list)) 1030 ; 1031 #ifdef DIAGNOSTIC 1032 if (!ii) 1033 panic("uhci_waitintr: lost intr_info\n"); 1034 #endif 1035 uhci_idone(ii); 1036 } 1037 1038 void 1039 uhci_poll(bus) 1040 struct usbd_bus *bus; 1041 { 1042 uhci_softc_t *sc = (uhci_softc_t *)bus; 1043 1044 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1045 uhci_intr(sc); 1046 } 1047 1048 #if 0 1049 void 1050 uhci_reset(p) 1051 void *p; 1052 { 1053 uhci_softc_t *sc = p; 1054 int n; 1055 1056 UHCICMD(sc, UHCI_CMD_HCRESET); 1057 /* The reset bit goes low when the controller is done. */ 1058 for (n = 0; n < UHCI_RESET_TIMEOUT && 1059 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1060 delay(100); 1061 if (n >= UHCI_RESET_TIMEOUT) 1062 printf("%s: controller did not reset\n", 1063 USBDEVNAME(sc->sc_bus.bdev)); 1064 } 1065 #endif 1066 1067 usbd_status 1068 uhci_run(sc, run) 1069 uhci_softc_t *sc; 1070 int run; 1071 { 1072 int s, n, running; 1073 1074 run = run != 0; 1075 s = splusb(); 1076 DPRINTF(("uhci_run: setting run=%d\n", run)); 1077 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1078 for(n = 0; n < 10; n++) { 1079 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1080 /* return when we've entered the state we want */ 1081 if (run == running) { 1082 splx(s); 1083 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1084 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1085 return (USBD_NORMAL_COMPLETION); 1086 } 1087 usb_delay_ms(&sc->sc_bus, 1); 1088 } 1089 splx(s); 1090 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1091 run ? "start" : "stop"); 1092 return (USBD_IOERROR); 1093 } 1094 1095 /* 1096 * Memory management routines. 1097 * uhci_alloc_std allocates TDs 1098 * uhci_alloc_sqh allocates QHs 1099 * These two routines do their own free list management, 1100 * partly for speed, partly because allocating DMAable memory 1101 * has page size granularaity so much memory would be wasted if 1102 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1103 */ 1104 1105 uhci_soft_td_t * 1106 uhci_alloc_std(sc) 1107 uhci_softc_t *sc; 1108 { 1109 uhci_soft_td_t *std; 1110 usbd_status r; 1111 int i, offs; 1112 usb_dma_t dma; 1113 1114 if (!sc->sc_freetds) { 1115 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1116 r = usb_allocmem(sc->sc_dmatag, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1117 UHCI_TD_ALIGN, &dma); 1118 if (r != USBD_NORMAL_COMPLETION) 1119 return (0); 1120 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1121 offs = i * UHCI_STD_SIZE; 1122 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1123 std->physaddr = DMAADDR(&dma) + offs; 1124 std->link.std = sc->sc_freetds; 1125 sc->sc_freetds = std; 1126 } 1127 } 1128 std = sc->sc_freetds; 1129 sc->sc_freetds = std->link.std; 1130 memset(&std->td, 0, sizeof(uhci_td_t)); 1131 return std; 1132 } 1133 1134 void 1135 uhci_free_std(sc, std) 1136 uhci_softc_t *sc; 1137 uhci_soft_td_t *std; 1138 { 1139 #ifdef DIAGNOSTIC 1140 #define TD_IS_FREE 0x12345678 1141 if (LE(std->td.td_token) == TD_IS_FREE) { 1142 printf("uhci_free_std: freeing free TD %p\n", std); 1143 return; 1144 } 1145 std->td.td_token = LE(TD_IS_FREE); 1146 #endif 1147 std->link.std = sc->sc_freetds; 1148 sc->sc_freetds = std; 1149 } 1150 1151 uhci_soft_qh_t * 1152 uhci_alloc_sqh(sc) 1153 uhci_softc_t *sc; 1154 { 1155 uhci_soft_qh_t *sqh; 1156 usbd_status r; 1157 int i, offs; 1158 usb_dma_t dma; 1159 1160 if (!sc->sc_freeqhs) { 1161 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1162 r = usb_allocmem(sc->sc_dmatag, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1163 UHCI_QH_ALIGN, &dma); 1164 if (r != USBD_NORMAL_COMPLETION) 1165 return 0; 1166 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1167 offs = i * UHCI_SQH_SIZE; 1168 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1169 sqh->physaddr = DMAADDR(&dma) + offs; 1170 sqh->hlink = sc->sc_freeqhs; 1171 sc->sc_freeqhs = sqh; 1172 } 1173 } 1174 sqh = sc->sc_freeqhs; 1175 sc->sc_freeqhs = sqh->hlink; 1176 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1177 return (sqh); 1178 } 1179 1180 void 1181 uhci_free_sqh(sc, sqh) 1182 uhci_softc_t *sc; 1183 uhci_soft_qh_t *sqh; 1184 { 1185 sqh->hlink = sc->sc_freeqhs; 1186 sc->sc_freeqhs = sqh; 1187 } 1188 1189 #if 0 1190 /* 1191 * Enter a list of transfers onto a control queue. 1192 * Called at splusb() 1193 */ 1194 void 1195 uhci_enter_ctl_q(sc, sqh, ii) 1196 uhci_softc_t *sc; 1197 uhci_soft_qh_t *sqh; 1198 uhci_intr_info_t *ii; 1199 { 1200 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1201 1202 } 1203 #endif 1204 1205 void 1206 uhci_free_std_chain(sc, std, stdend) 1207 uhci_softc_t *sc; 1208 uhci_soft_td_t *std; 1209 uhci_soft_td_t *stdend; 1210 { 1211 uhci_soft_td_t *p; 1212 1213 for (; std != stdend; std = p) { 1214 p = std->link.std; 1215 uhci_free_std(sc, std); 1216 } 1217 } 1218 1219 usbd_status 1220 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1221 struct uhci_pipe *upipe; 1222 uhci_softc_t *sc; 1223 int len, rd, shortok; 1224 usb_dma_t *dma; 1225 uhci_soft_td_t **sp, **ep; 1226 { 1227 uhci_soft_td_t *p, *lastp; 1228 uhci_physaddr_t lastlink; 1229 int i, ntd, l, tog, maxp; 1230 u_int32_t status; 1231 int addr = upipe->pipe.device->address; 1232 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1233 1234 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1235 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1236 upipe->pipe.device->lowspeed, shortok)); 1237 if (len == 0) { 1238 *sp = *ep = 0; 1239 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1240 return (USBD_NORMAL_COMPLETION); 1241 } 1242 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1243 if (maxp == 0) { 1244 printf("uhci_alloc_std_chain: maxp=0\n"); 1245 return (USBD_INVAL); 1246 } 1247 ntd = (len + maxp - 1) / maxp; 1248 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1249 tog = upipe->nexttoggle; 1250 if (ntd % 2 == 0) 1251 tog ^= 1; 1252 upipe->nexttoggle = tog ^ 1; 1253 lastp = 0; 1254 lastlink = UHCI_PTR_T; 1255 ntd--; 1256 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1257 if (upipe->pipe.device->lowspeed) 1258 status |= UHCI_TD_LS; 1259 if (shortok) 1260 status |= UHCI_TD_SPD; 1261 for (i = ntd; i >= 0; i--) { 1262 p = uhci_alloc_std(sc); 1263 if (!p) { 1264 uhci_free_std_chain(sc, lastp, 0); 1265 return (USBD_NOMEM); 1266 } 1267 p->link.std = lastp; 1268 p->td.td_link = LE(lastlink); 1269 lastp = p; 1270 lastlink = p->physaddr; 1271 p->td.td_status = LE(status); 1272 if (i == ntd) { 1273 /* last TD */ 1274 l = len % maxp; 1275 if (l == 0) l = maxp; 1276 *ep = p; 1277 } else 1278 l = maxp; 1279 p->td.td_token = 1280 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1281 UHCI_TD_OUT(l, endpt, addr, tog)); 1282 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1283 tog ^= 1; 1284 } 1285 *sp = lastp; 1286 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1287 upipe->nexttoggle)); 1288 return (USBD_NORMAL_COMPLETION); 1289 } 1290 1291 void 1292 uhci_device_clear_toggle(pipe) 1293 usbd_pipe_handle pipe; 1294 { 1295 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1296 upipe->nexttoggle = 0; 1297 } 1298 1299 void 1300 uhci_noop(pipe) 1301 usbd_pipe_handle pipe; 1302 { 1303 } 1304 1305 usbd_status 1306 uhci_device_bulk_transfer(reqh) 1307 usbd_request_handle reqh; 1308 { 1309 usbd_status r; 1310 1311 r = usb_insert_transfer(reqh); 1312 if (r != USBD_NORMAL_COMPLETION) 1313 return (r); 1314 else 1315 return (uhci_device_bulk_start(reqh)); 1316 } 1317 1318 usbd_status 1319 uhci_device_bulk_start(reqh) 1320 usbd_request_handle reqh; 1321 { 1322 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1323 usbd_device_handle dev = upipe->pipe.device; 1324 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1325 uhci_intr_info_t *ii = upipe->iinfo; 1326 uhci_soft_td_t *xfer, *xferend; 1327 uhci_soft_qh_t *sqh; 1328 usbd_status r; 1329 int len, isread, endpt; 1330 int s; 1331 1332 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1333 reqh, reqh->length, reqh->flags)); 1334 1335 #ifdef DIAGNOSTIC 1336 if (reqh->rqflags & URQ_REQUEST) 1337 panic("uhci_device_bulk_transfer: a request\n"); 1338 #endif 1339 1340 len = reqh->length; 1341 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1342 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1343 sqh = upipe->u.bulk.sqh; 1344 1345 upipe->u.bulk.isread = isread; 1346 upipe->u.bulk.length = len; 1347 1348 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1349 reqh->flags & USBD_SHORT_XFER_OK, 1350 &reqh->dmabuf, &xfer, &xferend); 1351 if (r != USBD_NORMAL_COMPLETION) 1352 return (r); 1353 xferend->td.td_status |= LE(UHCI_TD_IOC); 1354 1355 #ifdef USB_DEBUG 1356 if (uhcidebug > 8) { 1357 DPRINTF(("uhci_device_bulk_transfer: xfer(1)\n")); 1358 uhci_dump_tds(xfer); 1359 } 1360 #endif 1361 1362 /* Set up interrupt info. */ 1363 ii->reqh = reqh; 1364 ii->stdstart = xfer; 1365 ii->stdend = xferend; 1366 #ifdef DIAGNOSTIC 1367 ii->isdone = 0; 1368 #endif 1369 1370 sqh->elink = xfer; 1371 sqh->qh.qh_elink = LE(xfer->physaddr); 1372 sqh->intr_info = ii; 1373 1374 s = splusb(); 1375 uhci_add_bulk(sc, sqh); 1376 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1377 1378 if (reqh->timeout && !sc->sc_bus.use_polling) { 1379 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1380 ii->timeout_handle); 1381 } 1382 splx(s); 1383 1384 #ifdef USB_DEBUG 1385 if (uhcidebug > 10) { 1386 DPRINTF(("uhci_device_bulk_transfer: xfer(2)\n")); 1387 uhci_dump_tds(xfer); 1388 } 1389 #endif 1390 1391 if (sc->sc_bus.use_polling) 1392 uhci_waitintr(sc, reqh); 1393 1394 return (USBD_IN_PROGRESS); 1395 } 1396 1397 /* Abort a device bulk request. */ 1398 void 1399 uhci_device_bulk_abort(reqh) 1400 usbd_request_handle reqh; 1401 { 1402 DPRINTF(("uhci_device_bulk_abort:\n")); 1403 uhci_abort_req(reqh, USBD_CANCELLED); 1404 } 1405 1406 void 1407 uhci_abort_req(reqh, status) 1408 usbd_request_handle reqh; 1409 usbd_status status; 1410 { 1411 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1412 uhci_intr_info_t *ii = upipe->iinfo; 1413 uhci_soft_td_t *std; 1414 1415 /* Make interrupt routine ignore it, */ 1416 reqh->status = status; 1417 1418 /* don't timeout, */ 1419 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1420 1421 /* make hardware ignore it, */ 1422 for (std = ii->stdstart; std != 0; std = std->link.std) 1423 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1424 1425 reqh->hcpriv = ii; 1426 1427 /* make sure hardware has completed, */ 1428 if (curproc) { 1429 usb_delay_ms(reqh->pipe->device->bus, 1); 1430 /* and call final part of interrupt handler. */ 1431 uhci_abort_req_end(reqh); 1432 } else { 1433 /* We have no process context, so we can't use tsleep(). */ 1434 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1435 } 1436 } 1437 1438 void 1439 uhci_abort_req_end(v) 1440 void *v; 1441 { 1442 usbd_request_handle reqh = v; 1443 int s; 1444 1445 s = splusb(); 1446 usb_transfer_complete(reqh); 1447 splx(s); 1448 } 1449 1450 /* Close a device bulk pipe. */ 1451 void 1452 uhci_device_bulk_close(pipe) 1453 usbd_pipe_handle pipe; 1454 { 1455 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1456 usbd_device_handle dev = upipe->pipe.device; 1457 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1458 1459 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1460 uhci_free_intr_info(upipe->iinfo); 1461 /* XXX free other resources */ 1462 } 1463 1464 usbd_status 1465 uhci_device_ctrl_transfer(reqh) 1466 usbd_request_handle reqh; 1467 { 1468 usbd_status r; 1469 1470 r = usb_insert_transfer(reqh); 1471 if (r != USBD_NORMAL_COMPLETION) 1472 return (r); 1473 else 1474 return (uhci_device_ctrl_start(reqh)); 1475 } 1476 1477 usbd_status 1478 uhci_device_ctrl_start(reqh) 1479 usbd_request_handle reqh; 1480 { 1481 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1482 usbd_status r; 1483 1484 #ifdef DIAGNOSTIC 1485 if (!(reqh->rqflags & URQ_REQUEST)) 1486 panic("uhci_device_ctrl_transfer: not a request\n"); 1487 #endif 1488 1489 r = uhci_device_request(reqh); 1490 if (r != USBD_NORMAL_COMPLETION) 1491 return (r); 1492 1493 if (sc->sc_bus.use_polling) 1494 uhci_waitintr(sc, reqh); 1495 return (USBD_IN_PROGRESS); 1496 } 1497 1498 usbd_status 1499 uhci_device_intr_transfer(reqh) 1500 usbd_request_handle reqh; 1501 { 1502 usbd_status r; 1503 1504 r = usb_insert_transfer(reqh); 1505 if (r != USBD_NORMAL_COMPLETION) 1506 return (r); 1507 else 1508 return (uhci_device_intr_start(reqh)); 1509 } 1510 1511 usbd_status 1512 uhci_device_intr_start(reqh) 1513 usbd_request_handle reqh; 1514 { 1515 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1516 usbd_device_handle dev = upipe->pipe.device; 1517 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1518 uhci_intr_info_t *ii = upipe->iinfo; 1519 uhci_soft_td_t *xfer, *xferend; 1520 uhci_soft_qh_t *sqh; 1521 usbd_status r; 1522 int i, s; 1523 1524 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1525 reqh, reqh->length, reqh->flags)); 1526 1527 #ifdef DIAGNOSTIC 1528 if (reqh->rqflags & URQ_REQUEST) 1529 panic("uhci_device_intr_transfer: a request\n"); 1530 #endif 1531 1532 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1533 reqh->flags & USBD_SHORT_XFER_OK, 1534 &reqh->dmabuf, &xfer, &xferend); 1535 if (r != USBD_NORMAL_COMPLETION) 1536 return (r); 1537 xferend->td.td_status |= LE(UHCI_TD_IOC); 1538 1539 #ifdef USB_DEBUG 1540 if (uhcidebug > 10) { 1541 DPRINTF(("uhci_device_intr_transfer: xfer(1)\n")); 1542 uhci_dump_tds(xfer); 1543 uhci_dump_qh(upipe->u.intr.qhs[0]); 1544 } 1545 #endif 1546 1547 s = splusb(); 1548 /* Set up interrupt info. */ 1549 ii->reqh = reqh; 1550 ii->stdstart = xfer; 1551 ii->stdend = xferend; 1552 #ifdef DIAGNOSTIC 1553 ii->isdone = 0; 1554 #endif 1555 1556 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1557 upipe->u.intr.qhs[0])); 1558 for (i = 0; i < upipe->u.intr.npoll; i++) { 1559 sqh = upipe->u.intr.qhs[i]; 1560 sqh->elink = xfer; 1561 sqh->qh.qh_elink = LE(xfer->physaddr); 1562 } 1563 splx(s); 1564 1565 #ifdef USB_DEBUG 1566 if (uhcidebug > 10) { 1567 DPRINTF(("uhci_device_intr_transfer: xfer(2)\n")); 1568 uhci_dump_tds(xfer); 1569 uhci_dump_qh(upipe->u.intr.qhs[0]); 1570 } 1571 #endif 1572 1573 return (USBD_IN_PROGRESS); 1574 } 1575 1576 /* Abort a device control request. */ 1577 void 1578 uhci_device_ctrl_abort(reqh) 1579 usbd_request_handle reqh; 1580 { 1581 DPRINTF(("uhci_device_ctrl_abort:\n")); 1582 uhci_abort_req(reqh, USBD_CANCELLED); 1583 } 1584 1585 /* Close a device control pipe. */ 1586 void 1587 uhci_device_ctrl_close(pipe) 1588 usbd_pipe_handle pipe; 1589 { 1590 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1591 1592 uhci_free_intr_info(upipe->iinfo); 1593 /* XXX free other resources */ 1594 } 1595 1596 /* Abort a device interrupt request. */ 1597 void 1598 uhci_device_intr_abort(reqh) 1599 usbd_request_handle reqh; 1600 { 1601 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1602 if (reqh->pipe->intrreqh == reqh) { 1603 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1604 reqh->pipe->intrreqh = 0; 1605 } 1606 uhci_abort_req(reqh, USBD_CANCELLED); 1607 } 1608 1609 /* Close a device interrupt pipe. */ 1610 void 1611 uhci_device_intr_close(pipe) 1612 usbd_pipe_handle pipe; 1613 { 1614 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1615 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1616 int i, s, npoll; 1617 1618 upipe->iinfo->stdstart = 0; /* inactive */ 1619 1620 /* Unlink descriptors from controller data structures. */ 1621 npoll = upipe->u.intr.npoll; 1622 uhci_lock_frames(sc); 1623 for (i = 0; i < npoll; i++) 1624 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1625 upipe->u.intr.qhs[i]); 1626 uhci_unlock_frames(sc); 1627 1628 /* 1629 * We now have to wait for any activity on the physical 1630 * descriptors to stop. 1631 */ 1632 usb_delay_ms(&sc->sc_bus, 2); 1633 1634 for(i = 0; i < npoll; i++) 1635 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1636 free(upipe->u.intr.qhs, M_USBHC); 1637 1638 s = splusb(); 1639 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1640 splx(s); 1641 uhci_free_intr_info(upipe->iinfo); 1642 1643 /* XXX free other resources */ 1644 } 1645 1646 usbd_status 1647 uhci_device_request(reqh) 1648 usbd_request_handle reqh; 1649 { 1650 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1651 usb_device_request_t *req = &reqh->request; 1652 usbd_device_handle dev = upipe->pipe.device; 1653 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1654 int addr = dev->address; 1655 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1656 uhci_intr_info_t *ii = upipe->iinfo; 1657 uhci_soft_td_t *setup, *xfer, *stat, *next, *xferend; 1658 uhci_soft_qh_t *sqh; 1659 int len; 1660 u_int32_t ls; 1661 usbd_status r; 1662 int isread; 1663 int s; 1664 1665 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1666 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1667 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1668 UGETW(req->wIndex), UGETW(req->wLength), 1669 addr, endpt)); 1670 1671 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1672 isread = req->bmRequestType & UT_READ; 1673 len = UGETW(req->wLength); 1674 1675 setup = upipe->u.ctl.setup; 1676 stat = upipe->u.ctl.stat; 1677 sqh = upipe->u.ctl.sqh; 1678 1679 /* Set up data transaction */ 1680 if (len != 0) { 1681 upipe->nexttoggle = 1; 1682 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1683 reqh->flags & USBD_SHORT_XFER_OK, 1684 &reqh->dmabuf, &xfer, &xferend); 1685 if (r != USBD_NORMAL_COMPLETION) 1686 return (r); 1687 next = xfer; 1688 xferend->link.std = stat; 1689 xferend->td.td_link = LE(stat->physaddr); 1690 } else { 1691 next = stat; 1692 } 1693 upipe->u.ctl.length = len; 1694 1695 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1696 1697 setup->link.std = next; 1698 setup->td.td_link = LE(next->physaddr); 1699 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1700 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1701 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1702 1703 stat->link.std = 0; 1704 stat->td.td_link = LE(UHCI_PTR_T); 1705 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1706 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1707 stat->td.td_token = 1708 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1709 UHCI_TD_IN (0, endpt, addr, 1)); 1710 stat->td.td_buffer = LE(0); 1711 1712 #ifdef USB_DEBUG 1713 if (uhcidebug > 20) { 1714 DPRINTF(("uhci_device_request: before transfer\n")); 1715 uhci_dump_tds(setup); 1716 } 1717 #endif 1718 1719 /* Set up interrupt info. */ 1720 ii->reqh = reqh; 1721 ii->stdstart = setup; 1722 ii->stdend = stat; 1723 #ifdef DIAGNOSTIC 1724 ii->isdone = 0; 1725 #endif 1726 1727 sqh->elink = setup; 1728 sqh->qh.qh_elink = LE(setup->physaddr); 1729 sqh->intr_info = ii; 1730 1731 s = splusb(); 1732 uhci_add_ctrl(sc, sqh); 1733 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1734 #ifdef USB_DEBUG 1735 if (uhcidebug > 12) { 1736 uhci_soft_td_t *std; 1737 uhci_soft_qh_t *xqh; 1738 uhci_soft_qh_t *sxqh; 1739 int maxqh = 0; 1740 uhci_physaddr_t link; 1741 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1742 for (std = sc->sc_vframes[0].htd, link = 0; 1743 (link & UHCI_PTR_Q) == 0; 1744 std = std->link.std) { 1745 link = LE(std->td.td_link); 1746 uhci_dump_td(std); 1747 } 1748 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1749 xqh; 1750 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1751 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1752 uhci_dump_qh(xqh); 1753 uhci_dump_qh(sxqh); 1754 } 1755 DPRINTF(("Enqueued QH:\n")); 1756 uhci_dump_qh(sqh); 1757 uhci_dump_tds(sqh->elink); 1758 } 1759 #endif 1760 if (reqh->timeout && !sc->sc_bus.use_polling) { 1761 usb_timeout(uhci_timeout, ii, 1762 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1763 } 1764 splx(s); 1765 1766 return (USBD_NORMAL_COMPLETION); 1767 } 1768 1769 usbd_status 1770 uhci_device_isoc_transfer(reqh) 1771 usbd_request_handle reqh; 1772 { 1773 usbd_status r; 1774 1775 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1776 1777 /* Put it on our queue, */ 1778 r = usb_insert_transfer(reqh); 1779 1780 /* bail out on error, */ 1781 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1782 return (r); 1783 1784 /* XXX should check inuse here */ 1785 1786 /* insert into schedule, */ 1787 uhci_device_isoc_enter(reqh); 1788 1789 /* and put on interrupt list if the pipe wasn't running */ 1790 if (r == USBD_NORMAL_COMPLETION) 1791 uhci_device_isoc_start(reqh); 1792 1793 return (r); 1794 } 1795 1796 void 1797 uhci_device_isoc_enter(reqh) 1798 usbd_request_handle reqh; 1799 { 1800 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1801 usbd_device_handle dev = upipe->pipe.device; 1802 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1803 struct iso *iso = &upipe->u.iso; 1804 uhci_soft_td_t *std; 1805 u_int32_t buf, len, status; 1806 int s, i, next, nframes; 1807 1808 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1809 "nframes=%d\n", 1810 iso->inuse, iso->next, reqh, reqh->nframes)); 1811 1812 if (reqh->status == USBD_IN_PROGRESS) { 1813 /* This request has already been entered into the frame list */ 1814 } 1815 1816 #ifdef DIAGNOSTIC 1817 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1818 printf("uhci_device_isoc_enter: overflow!\n"); 1819 #endif 1820 1821 next = iso->next; 1822 if (next == -1) { 1823 /* Not in use yet, schedule it a few frames ahead. */ 1824 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1825 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1826 } 1827 1828 reqh->status = USBD_IN_PROGRESS; 1829 reqh->hcprivint = next; 1830 1831 buf = DMAADDR(&reqh->dmabuf); 1832 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1833 UHCI_TD_ACTIVE | 1834 UHCI_TD_IOS)); 1835 nframes = reqh->nframes; 1836 s = splusb(); 1837 for (i = 0; i < nframes; i++) { 1838 std = iso->stds[next]; 1839 if (++next >= UHCI_VFRAMELIST_COUNT) 1840 next = 0; 1841 len = reqh->frlengths[i]; 1842 std->td.td_buffer = LE(buf); 1843 if (i == nframes - 1) 1844 status |= LE(UHCI_TD_IOC); 1845 std->td.td_status = status; 1846 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1847 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1848 #ifdef USB_DEBUG 1849 if (uhcidebug > 5) { 1850 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1851 uhci_dump_td(std); 1852 } 1853 #endif 1854 buf += len; 1855 } 1856 iso->next = next; 1857 iso->inuse += reqh->nframes; 1858 1859 splx(s); 1860 } 1861 1862 usbd_status 1863 uhci_device_isoc_start(reqh) 1864 usbd_request_handle reqh; 1865 { 1866 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1867 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1868 uhci_intr_info_t *ii = upipe->iinfo; 1869 uhci_soft_td_t *end; 1870 int s, i; 1871 1872 #ifdef DIAGNOSTIC 1873 if (reqh->status != USBD_IN_PROGRESS) 1874 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1875 #endif 1876 1877 /* Find the last TD */ 1878 i = reqh->hcprivint + reqh->nframes; 1879 if (i >= UHCI_VFRAMELIST_COUNT) 1880 i -= UHCI_VFRAMELIST_COUNT; 1881 end = upipe->u.iso.stds[i]; 1882 1883 s = splusb(); 1884 1885 /* Set up interrupt info. */ 1886 ii->reqh = reqh; 1887 ii->stdstart = end; 1888 ii->stdend = end; 1889 #ifdef DIAGNOSTIC 1890 ii->isdone = 0; 1891 #endif 1892 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1893 1894 splx(s); 1895 1896 return (USBD_IN_PROGRESS); 1897 } 1898 1899 void 1900 uhci_device_isoc_abort(reqh) 1901 usbd_request_handle reqh; 1902 { 1903 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1904 uhci_intr_info_t *ii = upipe->iinfo; 1905 uhci_soft_td_t **stds = upipe->u.iso.stds; 1906 uhci_soft_td_t *std; 1907 int i, n, nframes; 1908 1909 /* Make interrupt routine ignore it, */ 1910 reqh->status = USBD_CANCELLED; 1911 1912 /* make hardware ignore it, */ 1913 nframes = reqh->nframes; 1914 n = reqh->hcprivint; 1915 for (i = 0; i < nframes; i++) { 1916 std = stds[n]; 1917 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1918 if (++n >= UHCI_VFRAMELIST_COUNT) 1919 n = 0; 1920 } 1921 1922 reqh->hcpriv = ii; 1923 1924 /* make sure hardware has completed, */ 1925 if (curproc) { 1926 usb_delay_ms(reqh->pipe->device->bus, 1); 1927 /* and call final part of interrupt handler. */ 1928 uhci_abort_req_end(reqh); 1929 } else { 1930 /* We have no process context, so we can't use tsleep(). */ 1931 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1932 } 1933 } 1934 1935 void 1936 uhci_device_isoc_close(pipe) 1937 usbd_pipe_handle pipe; 1938 { 1939 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1940 usbd_device_handle dev = upipe->pipe.device; 1941 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1942 uhci_soft_td_t *std, *vstd; 1943 struct iso *iso; 1944 int i; 1945 1946 /* 1947 * Make sure all TDs are marked as inactive. 1948 * Wait for completion. 1949 * Unschedule. 1950 * Deallocate. 1951 */ 1952 iso = &upipe->u.iso; 1953 1954 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 1955 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 1956 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 1957 1958 uhci_lock_frames(sc); 1959 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 1960 std = iso->stds[i]; 1961 for (vstd = sc->sc_vframes[i].htd; 1962 vstd && vstd->link.std != std; 1963 vstd = vstd->link.std) 1964 ; 1965 if (!vstd) { 1966 /*panic*/ 1967 printf("uhci_device_isoc_close: %p not found\n", std); 1968 uhci_unlock_frames(sc); 1969 return; 1970 } 1971 vstd->link = std->link; 1972 vstd->td.td_link = std->td.td_link; 1973 uhci_free_std(sc, std); 1974 } 1975 uhci_unlock_frames(sc); 1976 1977 free(iso->stds, M_USBHC); 1978 } 1979 1980 usbd_status 1981 uhci_setup_isoc(pipe) 1982 usbd_pipe_handle pipe; 1983 { 1984 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1985 usbd_device_handle dev = upipe->pipe.device; 1986 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1987 int addr = upipe->pipe.device->address; 1988 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1989 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 1990 uhci_soft_td_t *std, *vstd; 1991 u_int32_t token; 1992 struct iso *iso; 1993 int i; 1994 1995 iso = &upipe->u.iso; 1996 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 1997 M_USBHC, M_WAITOK); 1998 1999 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2000 UHCI_TD_OUT(0, endpt, addr, 0)); 2001 2002 /* Allocate the TDs and mark as inactive; */ 2003 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2004 std = uhci_alloc_std(sc); 2005 if (std == 0) 2006 goto bad; 2007 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2008 std->td.td_token = token; 2009 iso->stds[i] = std; 2010 } 2011 2012 /* Insert TDs into schedule. */ 2013 uhci_lock_frames(sc); 2014 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2015 std = iso->stds[i]; 2016 vstd = sc->sc_vframes[i].htd; 2017 std->link = vstd->link; 2018 std->td.td_link = vstd->td.td_link; 2019 vstd->link.std = std; 2020 vstd->td.td_link = LE(std->physaddr); 2021 } 2022 uhci_unlock_frames(sc); 2023 2024 iso->next = -1; 2025 iso->inuse = 0; 2026 2027 return (USBD_NORMAL_COMPLETION); 2028 2029 bad: 2030 while (--i >= 0) 2031 uhci_free_std(sc, iso->stds[i]); 2032 free(iso->stds, M_USBHC); 2033 return (USBD_NOMEM); 2034 } 2035 2036 void 2037 uhci_device_isoc_done(reqh) 2038 usbd_request_handle reqh; 2039 { 2040 uhci_intr_info_t *ii = reqh->hcpriv; 2041 2042 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2043 2044 /* Turn off the interrupt since it is active even if the TD is not. */ 2045 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2046 2047 LIST_REMOVE(ii, list); /* remove from active list */ 2048 } 2049 2050 void 2051 uhci_device_intr_done(reqh) 2052 usbd_request_handle reqh; 2053 { 2054 uhci_intr_info_t *ii = reqh->hcpriv; 2055 uhci_softc_t *sc = ii->sc; 2056 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2057 uhci_soft_qh_t *sqh; 2058 int i, npoll; 2059 2060 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2061 2062 npoll = upipe->u.intr.npoll; 2063 for(i = 0; i < npoll; i++) { 2064 sqh = upipe->u.intr.qhs[i]; 2065 sqh->elink = 0; 2066 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2067 } 2068 uhci_free_std_chain(sc, ii->stdstart, 0); 2069 2070 /* XXX Wasteful. */ 2071 if (reqh->pipe->repeat) { 2072 uhci_soft_td_t *xfer, *xferend; 2073 2074 /* This alloc cannot fail since we freed the chain above. */ 2075 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2076 reqh->flags & USBD_SHORT_XFER_OK, 2077 &reqh->dmabuf, &xfer, &xferend); 2078 xferend->td.td_status |= LE(UHCI_TD_IOC); 2079 2080 #ifdef USB_DEBUG 2081 if (uhcidebug > 10) { 2082 DPRINTF(("uhci_device_intr_done: xfer(1)\n")); 2083 uhci_dump_tds(xfer); 2084 uhci_dump_qh(upipe->u.intr.qhs[0]); 2085 } 2086 #endif 2087 2088 ii->stdstart = xfer; 2089 ii->stdend = xferend; 2090 #ifdef DIAGNOSTIC 2091 ii->isdone = 0; 2092 #endif 2093 for (i = 0; i < npoll; i++) { 2094 sqh = upipe->u.intr.qhs[i]; 2095 sqh->elink = xfer; 2096 sqh->qh.qh_elink = LE(xfer->physaddr); 2097 } 2098 } else { 2099 ii->stdstart = 0; /* mark as inactive */ 2100 } 2101 } 2102 2103 /* Deallocate request data structures */ 2104 void 2105 uhci_device_ctrl_done(reqh) 2106 usbd_request_handle reqh; 2107 { 2108 uhci_intr_info_t *ii = reqh->hcpriv; 2109 uhci_softc_t *sc = ii->sc; 2110 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2111 2112 #ifdef DIAGNOSTIC 2113 if (!(reqh->rqflags & URQ_REQUEST)) 2114 panic("uhci_ctrl_done: not a request\n"); 2115 #endif 2116 2117 LIST_REMOVE(ii, list); /* remove from active list */ 2118 2119 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2120 2121 if (upipe->u.ctl.length != 0) 2122 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2123 2124 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2125 } 2126 2127 /* Deallocate request data structures */ 2128 void 2129 uhci_device_bulk_done(reqh) 2130 usbd_request_handle reqh; 2131 { 2132 uhci_intr_info_t *ii = reqh->hcpriv; 2133 uhci_softc_t *sc = ii->sc; 2134 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2135 2136 LIST_REMOVE(ii, list); /* remove from active list */ 2137 2138 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2139 2140 uhci_free_std_chain(sc, ii->stdstart, 0); 2141 2142 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2143 } 2144 2145 /* Add interrupt QH, called with vflock. */ 2146 void 2147 uhci_add_intr(sc, n, sqh) 2148 uhci_softc_t *sc; 2149 int n; 2150 uhci_soft_qh_t *sqh; 2151 { 2152 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2153 uhci_soft_qh_t *eqh; 2154 2155 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2156 eqh = vf->eqh; 2157 sqh->hlink = eqh->hlink; 2158 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2159 eqh->hlink = sqh; 2160 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2161 vf->eqh = sqh; 2162 vf->bandwidth++; 2163 } 2164 2165 /* Remove interrupt QH, called with vflock. */ 2166 void 2167 uhci_remove_intr(sc, n, sqh) 2168 uhci_softc_t *sc; 2169 int n; 2170 uhci_soft_qh_t *sqh; 2171 { 2172 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2173 uhci_soft_qh_t *pqh; 2174 2175 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2176 2177 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2178 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2179 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2180 DPRINTF(("uhci_remove_intr: QH not found\n")); 2181 return; 2182 } 2183 #else 2184 ; 2185 #endif 2186 pqh->hlink = sqh->hlink; 2187 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2188 if (vf->eqh == sqh) 2189 vf->eqh = pqh; 2190 vf->bandwidth--; 2191 } 2192 2193 usbd_status 2194 uhci_device_setintr(sc, upipe, ival) 2195 uhci_softc_t *sc; 2196 struct uhci_pipe *upipe; 2197 int ival; 2198 { 2199 uhci_soft_qh_t *sqh; 2200 int i, npoll, s; 2201 u_int bestbw, bw, bestoffs, offs; 2202 2203 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2204 if (ival == 0) { 2205 printf("uhci_setintr: 0 interval\n"); 2206 return (USBD_INVAL); 2207 } 2208 2209 if (ival > UHCI_VFRAMELIST_COUNT) 2210 ival = UHCI_VFRAMELIST_COUNT; 2211 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2212 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2213 2214 upipe->u.intr.npoll = npoll; 2215 upipe->u.intr.qhs = 2216 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2217 2218 /* 2219 * Figure out which offset in the schedule that has most 2220 * bandwidth left over. 2221 */ 2222 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2223 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2224 for (bw = i = 0; i < npoll; i++) 2225 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2226 if (bw < bestbw) { 2227 bestbw = bw; 2228 bestoffs = offs; 2229 } 2230 } 2231 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2232 2233 upipe->iinfo->stdstart = 0; 2234 for(i = 0; i < npoll; i++) { 2235 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2236 sqh->elink = 0; 2237 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2238 sqh->pos = MOD(i * ival + bestoffs); 2239 sqh->intr_info = upipe->iinfo; 2240 } 2241 #undef MOD 2242 2243 s = splusb(); 2244 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2245 splx(s); 2246 2247 uhci_lock_frames(sc); 2248 /* Enter QHs into the controller data structures. */ 2249 for(i = 0; i < npoll; i++) 2250 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2251 upipe->u.intr.qhs[i]); 2252 uhci_unlock_frames(sc); 2253 2254 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2255 return (USBD_NORMAL_COMPLETION); 2256 } 2257 2258 /* Open a new pipe. */ 2259 usbd_status 2260 uhci_open(pipe) 2261 usbd_pipe_handle pipe; 2262 { 2263 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2264 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2265 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2266 usbd_status r; 2267 2268 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2269 pipe, pipe->device->address, 2270 ed->bEndpointAddress, sc->sc_addr)); 2271 if (pipe->device->address == sc->sc_addr) { 2272 switch (ed->bEndpointAddress) { 2273 case USB_CONTROL_ENDPOINT: 2274 pipe->methods = &uhci_root_ctrl_methods; 2275 break; 2276 case UE_DIR_IN | UHCI_INTR_ENDPT: 2277 pipe->methods = &uhci_root_intr_methods; 2278 break; 2279 default: 2280 return (USBD_INVAL); 2281 } 2282 } else { 2283 upipe->iinfo = uhci_alloc_intr_info(sc); 2284 if (upipe->iinfo == 0) 2285 return (USBD_NOMEM); 2286 switch (ed->bmAttributes & UE_XFERTYPE) { 2287 case UE_CONTROL: 2288 pipe->methods = &uhci_device_ctrl_methods; 2289 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2290 if (upipe->u.ctl.sqh == 0) 2291 goto bad; 2292 upipe->u.ctl.setup = uhci_alloc_std(sc); 2293 if (upipe->u.ctl.setup == 0) { 2294 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2295 goto bad; 2296 } 2297 upipe->u.ctl.stat = uhci_alloc_std(sc); 2298 if (upipe->u.ctl.stat == 0) { 2299 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2300 uhci_free_std(sc, upipe->u.ctl.setup); 2301 goto bad; 2302 } 2303 r = usb_allocmem(sc->sc_dmatag, 2304 sizeof(usb_device_request_t), 2305 0, &upipe->u.ctl.reqdma); 2306 if (r != USBD_NORMAL_COMPLETION) { 2307 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2308 uhci_free_std(sc, upipe->u.ctl.setup); 2309 uhci_free_std(sc, upipe->u.ctl.stat); 2310 goto bad; 2311 } 2312 break; 2313 case UE_INTERRUPT: 2314 pipe->methods = &uhci_device_intr_methods; 2315 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2316 case UE_ISOCHRONOUS: 2317 pipe->methods = &uhci_device_isoc_methods; 2318 return (uhci_setup_isoc(pipe)); 2319 case UE_BULK: 2320 pipe->methods = &uhci_device_bulk_methods; 2321 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2322 if (upipe->u.bulk.sqh == 0) 2323 goto bad; 2324 break; 2325 } 2326 } 2327 return (USBD_NORMAL_COMPLETION); 2328 2329 bad: 2330 uhci_free_intr_info(upipe->iinfo); 2331 return (USBD_NOMEM); 2332 } 2333 2334 /* 2335 * Data structures and routines to emulate the root hub. 2336 */ 2337 usb_device_descriptor_t uhci_devd = { 2338 USB_DEVICE_DESCRIPTOR_SIZE, 2339 UDESC_DEVICE, /* type */ 2340 {0x00, 0x01}, /* USB version */ 2341 UCLASS_HUB, /* class */ 2342 USUBCLASS_HUB, /* subclass */ 2343 0, /* protocol */ 2344 64, /* max packet */ 2345 {0},{0},{0x00,0x01}, /* device id */ 2346 1,2,0, /* string indicies */ 2347 1 /* # of configurations */ 2348 }; 2349 2350 usb_config_descriptor_t uhci_confd = { 2351 USB_CONFIG_DESCRIPTOR_SIZE, 2352 UDESC_CONFIG, 2353 {USB_CONFIG_DESCRIPTOR_SIZE + 2354 USB_INTERFACE_DESCRIPTOR_SIZE + 2355 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2356 1, 2357 1, 2358 0, 2359 UC_SELF_POWERED, 2360 0 /* max power */ 2361 }; 2362 2363 usb_interface_descriptor_t uhci_ifcd = { 2364 USB_INTERFACE_DESCRIPTOR_SIZE, 2365 UDESC_INTERFACE, 2366 0, 2367 0, 2368 1, 2369 UCLASS_HUB, 2370 USUBCLASS_HUB, 2371 0, 2372 0 2373 }; 2374 2375 usb_endpoint_descriptor_t uhci_endpd = { 2376 USB_ENDPOINT_DESCRIPTOR_SIZE, 2377 UDESC_ENDPOINT, 2378 UE_DIR_IN | UHCI_INTR_ENDPT, 2379 UE_INTERRUPT, 2380 {8}, 2381 255 2382 }; 2383 2384 usb_hub_descriptor_t uhci_hubd_piix = { 2385 USB_HUB_DESCRIPTOR_SIZE, 2386 UDESC_HUB, 2387 2, 2388 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2389 50, /* power on to power good */ 2390 0, 2391 { 0x00 }, /* both ports are removable */ 2392 }; 2393 2394 int 2395 uhci_str(p, l, s) 2396 usb_string_descriptor_t *p; 2397 int l; 2398 char *s; 2399 { 2400 int i; 2401 2402 if (l == 0) 2403 return (0); 2404 p->bLength = 2 * strlen(s) + 2; 2405 if (l == 1) 2406 return (1); 2407 p->bDescriptorType = UDESC_STRING; 2408 l -= 2; 2409 for (i = 0; s[i] && l > 1; i++, l -= 2) 2410 USETW2(p->bString[i], 0, s[i]); 2411 return (2*i+2); 2412 } 2413 2414 /* 2415 * Simulate a hardware hub by handling all the necessary requests. 2416 */ 2417 usbd_status 2418 uhci_root_ctrl_transfer(reqh) 2419 usbd_request_handle reqh; 2420 { 2421 usbd_status r; 2422 2423 r = usb_insert_transfer(reqh); 2424 if (r != USBD_NORMAL_COMPLETION) 2425 return (r); 2426 else 2427 return (uhci_root_ctrl_start(reqh)); 2428 } 2429 2430 usbd_status 2431 uhci_root_ctrl_start(reqh) 2432 usbd_request_handle reqh; 2433 { 2434 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2435 usb_device_request_t *req; 2436 void *buf; 2437 int port, x; 2438 int len, value, index, status, change, l, totlen = 0; 2439 usb_port_status_t ps; 2440 usbd_status r; 2441 2442 #ifdef DIAGNOSTIC 2443 if (!(reqh->rqflags & URQ_REQUEST)) 2444 panic("uhci_root_ctrl_transfer: not a request\n"); 2445 #endif 2446 req = &reqh->request; 2447 2448 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2449 req->bmRequestType, req->bRequest)); 2450 2451 len = UGETW(req->wLength); 2452 value = UGETW(req->wValue); 2453 index = UGETW(req->wIndex); 2454 2455 if (len != 0) 2456 buf = KERNADDR(&reqh->dmabuf); 2457 #ifdef DIAGNOSTIC 2458 else 2459 buf = 0; 2460 #endif 2461 2462 #define C(x,y) ((x) | ((y) << 8)) 2463 switch(C(req->bRequest, req->bmRequestType)) { 2464 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2465 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2466 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2467 /* 2468 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2469 * for the integrated root hub. 2470 */ 2471 break; 2472 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2473 if (len > 0) { 2474 *(u_int8_t *)buf = sc->sc_conf; 2475 totlen = 1; 2476 } 2477 break; 2478 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2479 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2480 switch(value >> 8) { 2481 case UDESC_DEVICE: 2482 if ((value & 0xff) != 0) { 2483 r = USBD_IOERROR; 2484 goto ret; 2485 } 2486 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2487 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2488 memcpy(buf, &uhci_devd, l); 2489 break; 2490 case UDESC_CONFIG: 2491 if ((value & 0xff) != 0) { 2492 r = USBD_IOERROR; 2493 goto ret; 2494 } 2495 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2496 memcpy(buf, &uhci_confd, l); 2497 buf = (char *)buf + l; 2498 len -= l; 2499 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2500 totlen += l; 2501 memcpy(buf, &uhci_ifcd, l); 2502 buf = (char *)buf + l; 2503 len -= l; 2504 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2505 totlen += l; 2506 memcpy(buf, &uhci_endpd, l); 2507 break; 2508 case UDESC_STRING: 2509 if (len == 0) 2510 break; 2511 *(u_int8_t *)buf = 0; 2512 totlen = 1; 2513 switch (value & 0xff) { 2514 case 1: /* Vendor */ 2515 totlen = uhci_str(buf, len, sc->sc_vendor); 2516 break; 2517 case 2: /* Product */ 2518 totlen = uhci_str(buf, len, "UHCI root hub"); 2519 break; 2520 } 2521 break; 2522 default: 2523 r = USBD_IOERROR; 2524 goto ret; 2525 } 2526 break; 2527 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2528 if (len > 0) { 2529 *(u_int8_t *)buf = 0; 2530 totlen = 1; 2531 } 2532 break; 2533 case C(UR_GET_STATUS, UT_READ_DEVICE): 2534 if (len > 1) { 2535 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2536 totlen = 2; 2537 } 2538 break; 2539 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2540 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2541 if (len > 1) { 2542 USETW(((usb_status_t *)buf)->wStatus, 0); 2543 totlen = 2; 2544 } 2545 break; 2546 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2547 if (value >= USB_MAX_DEVICES) { 2548 r = USBD_IOERROR; 2549 goto ret; 2550 } 2551 sc->sc_addr = value; 2552 break; 2553 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2554 if (value != 0 && value != 1) { 2555 r = USBD_IOERROR; 2556 goto ret; 2557 } 2558 sc->sc_conf = value; 2559 break; 2560 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2561 break; 2562 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2563 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2564 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2565 r = USBD_IOERROR; 2566 goto ret; 2567 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2568 break; 2569 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2570 break; 2571 /* Hub requests */ 2572 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2573 break; 2574 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2575 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2576 "port=%d feature=%d\n", 2577 index, value)); 2578 if (index == 1) 2579 port = UHCI_PORTSC1; 2580 else if (index == 2) 2581 port = UHCI_PORTSC2; 2582 else { 2583 r = USBD_IOERROR; 2584 goto ret; 2585 } 2586 switch(value) { 2587 case UHF_PORT_ENABLE: 2588 x = UREAD2(sc, port); 2589 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2590 break; 2591 case UHF_PORT_SUSPEND: 2592 x = UREAD2(sc, port); 2593 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2594 break; 2595 case UHF_PORT_RESET: 2596 x = UREAD2(sc, port); 2597 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2598 break; 2599 case UHF_C_PORT_CONNECTION: 2600 x = UREAD2(sc, port); 2601 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2602 break; 2603 case UHF_C_PORT_ENABLE: 2604 x = UREAD2(sc, port); 2605 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2606 break; 2607 case UHF_C_PORT_OVER_CURRENT: 2608 x = UREAD2(sc, port); 2609 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2610 break; 2611 case UHF_C_PORT_RESET: 2612 sc->sc_isreset = 0; 2613 r = USBD_NORMAL_COMPLETION; 2614 goto ret; 2615 case UHF_PORT_CONNECTION: 2616 case UHF_PORT_OVER_CURRENT: 2617 case UHF_PORT_POWER: 2618 case UHF_PORT_LOW_SPEED: 2619 case UHF_C_PORT_SUSPEND: 2620 default: 2621 r = USBD_IOERROR; 2622 goto ret; 2623 } 2624 break; 2625 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2626 if (index == 1) 2627 port = UHCI_PORTSC1; 2628 else if (index == 2) 2629 port = UHCI_PORTSC2; 2630 else { 2631 r = USBD_IOERROR; 2632 goto ret; 2633 } 2634 if (len > 0) { 2635 *(u_int8_t *)buf = 2636 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2637 UHCI_PORTSC_LS_SHIFT; 2638 totlen = 1; 2639 } 2640 break; 2641 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2642 if (value != 0) { 2643 r = USBD_IOERROR; 2644 goto ret; 2645 } 2646 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2647 totlen = l; 2648 memcpy(buf, &uhci_hubd_piix, l); 2649 break; 2650 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2651 if (len != 4) { 2652 r = USBD_IOERROR; 2653 goto ret; 2654 } 2655 memset(buf, 0, len); 2656 totlen = len; 2657 break; 2658 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2659 if (index == 1) 2660 port = UHCI_PORTSC1; 2661 else if (index == 2) 2662 port = UHCI_PORTSC2; 2663 else { 2664 r = USBD_IOERROR; 2665 goto ret; 2666 } 2667 if (len != 4) { 2668 r = USBD_IOERROR; 2669 goto ret; 2670 } 2671 x = UREAD2(sc, port); 2672 status = change = 0; 2673 if (x & UHCI_PORTSC_CCS ) 2674 status |= UPS_CURRENT_CONNECT_STATUS; 2675 if (x & UHCI_PORTSC_CSC ) 2676 change |= UPS_C_CONNECT_STATUS; 2677 if (x & UHCI_PORTSC_PE ) 2678 status |= UPS_PORT_ENABLED; 2679 if (x & UHCI_PORTSC_POEDC) 2680 change |= UPS_C_PORT_ENABLED; 2681 if (x & UHCI_PORTSC_OCI ) 2682 status |= UPS_OVERCURRENT_INDICATOR; 2683 if (x & UHCI_PORTSC_OCIC ) 2684 change |= UPS_C_OVERCURRENT_INDICATOR; 2685 if (x & UHCI_PORTSC_SUSP ) 2686 status |= UPS_SUSPEND; 2687 if (x & UHCI_PORTSC_LSDA ) 2688 status |= UPS_LOW_SPEED; 2689 status |= UPS_PORT_POWER; 2690 if (sc->sc_isreset) 2691 change |= UPS_C_PORT_RESET; 2692 USETW(ps.wPortStatus, status); 2693 USETW(ps.wPortChange, change); 2694 l = min(len, sizeof ps); 2695 memcpy(buf, &ps, l); 2696 totlen = l; 2697 break; 2698 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2699 r = USBD_IOERROR; 2700 goto ret; 2701 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2702 break; 2703 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2704 if (index == 1) 2705 port = UHCI_PORTSC1; 2706 else if (index == 2) 2707 port = UHCI_PORTSC2; 2708 else { 2709 r = USBD_IOERROR; 2710 goto ret; 2711 } 2712 switch(value) { 2713 case UHF_PORT_ENABLE: 2714 x = UREAD2(sc, port); 2715 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2716 break; 2717 case UHF_PORT_SUSPEND: 2718 x = UREAD2(sc, port); 2719 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2720 break; 2721 case UHF_PORT_RESET: 2722 x = UREAD2(sc, port); 2723 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2724 usb_delay_ms(&sc->sc_bus, 10); 2725 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2726 delay(100); 2727 x = UREAD2(sc, port); 2728 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2729 delay(100); 2730 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2731 index, UREAD2(sc, port))); 2732 sc->sc_isreset = 1; 2733 break; 2734 case UHF_C_PORT_CONNECTION: 2735 case UHF_C_PORT_ENABLE: 2736 case UHF_C_PORT_OVER_CURRENT: 2737 case UHF_PORT_CONNECTION: 2738 case UHF_PORT_OVER_CURRENT: 2739 case UHF_PORT_POWER: 2740 case UHF_PORT_LOW_SPEED: 2741 case UHF_C_PORT_SUSPEND: 2742 case UHF_C_PORT_RESET: 2743 default: 2744 r = USBD_IOERROR; 2745 goto ret; 2746 } 2747 break; 2748 default: 2749 r = USBD_IOERROR; 2750 goto ret; 2751 } 2752 reqh->actlen = totlen; 2753 r = USBD_NORMAL_COMPLETION; 2754 ret: 2755 reqh->status = r; 2756 reqh->hcpriv = 0; 2757 usb_transfer_complete(reqh); 2758 return (USBD_IN_PROGRESS); 2759 } 2760 2761 /* Abort a root control request. */ 2762 void 2763 uhci_root_ctrl_abort(reqh) 2764 usbd_request_handle reqh; 2765 { 2766 /* Nothing to do, all transfers are syncronous. */ 2767 } 2768 2769 /* Close the root pipe. */ 2770 void 2771 uhci_root_ctrl_close(pipe) 2772 usbd_pipe_handle pipe; 2773 { 2774 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2775 2776 sc->sc_has_timo = 0; 2777 DPRINTF(("uhci_root_ctrl_close\n")); 2778 } 2779 2780 /* Abort a root interrupt request. */ 2781 void 2782 uhci_root_intr_abort(reqh) 2783 usbd_request_handle reqh; 2784 { 2785 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2786 2787 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2788 sc->sc_has_timo = 0; 2789 } 2790 2791 usbd_status 2792 uhci_root_intr_transfer(reqh) 2793 usbd_request_handle reqh; 2794 { 2795 usbd_status r; 2796 2797 r = usb_insert_transfer(reqh); 2798 if (r != USBD_NORMAL_COMPLETION) 2799 return (r); 2800 else 2801 return (uhci_root_intr_start(reqh)); 2802 } 2803 2804 /* Start a transfer on the root interrupt pipe */ 2805 usbd_status 2806 uhci_root_intr_start(reqh) 2807 usbd_request_handle reqh; 2808 { 2809 usbd_pipe_handle pipe = reqh->pipe; 2810 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2811 2812 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2813 reqh, reqh->length, reqh->flags)); 2814 2815 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2816 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2817 sc->sc_has_timo = reqh; 2818 return (USBD_IN_PROGRESS); 2819 } 2820 2821 /* Close the root interrupt pipe. */ 2822 void 2823 uhci_root_intr_close(pipe) 2824 usbd_pipe_handle pipe; 2825 { 2826 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2827 2828 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2829 sc->sc_has_timo = 0; 2830 DPRINTF(("uhci_root_intr_close\n")); 2831 } 2832 2833
Indexes created Tue Sep 30 20:09:53 GMT 2025