ehci.c revision 1.104.2.9
1 /* $NetBSD: ehci.c,v 1.104.2.9 2008/02/27 08:36:47 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 2004,2005 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 (lennart (at) augustsson.net) and by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 41 * 42 * The EHCI 1.0 spec can be found at 43 * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 44 * and the USB 2.0 spec at 45 * http://www.usb.org/developers/docs/usb_20.zip 46 * 47 */ 48 49 /* 50 * TODO: 51 * 1) hold off explorations by companion controllers until ehci has started. 52 * 53 * 2) The EHCI driver lacks support for isochronous transfers, so 54 * devices using them don't work. 55 * 56 * 3) The hub driver needs to handle and schedule the transaction translator, 57 * to assign place in frame where different devices get to go. See chapter 58 * on hubs in USB 2.0 for details. 59 * 60 * 4) command failures are not recovered correctly 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.104.2.9 2008/02/27 08:36:47 yamt Exp $"); 65 66 #include "ohci.h" 67 #include "uhci.h" 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/kernel.h> 72 #include <sys/malloc.h> 73 #include <sys/device.h> 74 #include <sys/select.h> 75 #include <sys/proc.h> 76 #include <sys/queue.h> 77 #include <sys/mutex.h> 78 #include <sys/bus.h> 79 80 #include <machine/endian.h> 81 82 #include <dev/usb/usb.h> 83 #include <dev/usb/usbdi.h> 84 #include <dev/usb/usbdivar.h> 85 #include <dev/usb/usb_mem.h> 86 #include <dev/usb/usb_quirks.h> 87 88 #include <dev/usb/ehcireg.h> 89 #include <dev/usb/ehcivar.h> 90 #include <dev/usb/usbroothub_subr.h> 91 92 #ifdef EHCI_DEBUG 93 #define DPRINTF(x) do { if (ehcidebug) printf x; } while(0) 94 #define DPRINTFN(n,x) do { if (ehcidebug>(n)) printf x; } while (0) 95 int ehcidebug = 0; 96 #ifndef __NetBSD__ 97 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 98 #endif 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 struct ehci_pipe { 105 struct usbd_pipe pipe; 106 int nexttoggle; 107 108 ehci_soft_qh_t *sqh; 109 union { 110 ehci_soft_qtd_t *qtd; 111 /* ehci_soft_itd_t *itd; */ 112 } tail; 113 union { 114 /* Control pipe */ 115 struct { 116 usb_dma_t reqdma; 117 u_int length; 118 } ctl; 119 /* Interrupt pipe */ 120 struct { 121 u_int length; 122 } intr; 123 /* Bulk pipe */ 124 struct { 125 u_int length; 126 } bulk; 127 /* Iso pipe */ 128 /* XXX */ 129 } u; 130 }; 131 132 Static void ehci_shutdown(void *); 133 134 Static usbd_status ehci_open(usbd_pipe_handle); 135 Static void ehci_poll(struct usbd_bus *); 136 Static void ehci_softintr(void *); 137 Static int ehci_intr1(ehci_softc_t *); 138 Static void ehci_waitintr(ehci_softc_t *, usbd_xfer_handle); 139 Static void ehci_check_intr(ehci_softc_t *, struct ehci_xfer *); 140 Static void ehci_idone(struct ehci_xfer *); 141 Static void ehci_timeout(void *); 142 Static void ehci_timeout_task(void *); 143 Static void ehci_intrlist_timeout(void *); 144 145 Static usbd_status ehci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 146 Static void ehci_freem(struct usbd_bus *, usb_dma_t *); 147 148 Static usbd_xfer_handle ehci_allocx(struct usbd_bus *); 149 Static void ehci_freex(struct usbd_bus *, usbd_xfer_handle); 150 151 Static usbd_status ehci_root_ctrl_transfer(usbd_xfer_handle); 152 Static usbd_status ehci_root_ctrl_start(usbd_xfer_handle); 153 Static void ehci_root_ctrl_abort(usbd_xfer_handle); 154 Static void ehci_root_ctrl_close(usbd_pipe_handle); 155 Static void ehci_root_ctrl_done(usbd_xfer_handle); 156 157 Static usbd_status ehci_root_intr_transfer(usbd_xfer_handle); 158 Static usbd_status ehci_root_intr_start(usbd_xfer_handle); 159 Static void ehci_root_intr_abort(usbd_xfer_handle); 160 Static void ehci_root_intr_close(usbd_pipe_handle); 161 Static void ehci_root_intr_done(usbd_xfer_handle); 162 163 Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle); 164 Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle); 165 Static void ehci_device_ctrl_abort(usbd_xfer_handle); 166 Static void ehci_device_ctrl_close(usbd_pipe_handle); 167 Static void ehci_device_ctrl_done(usbd_xfer_handle); 168 169 Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle); 170 Static usbd_status ehci_device_bulk_start(usbd_xfer_handle); 171 Static void ehci_device_bulk_abort(usbd_xfer_handle); 172 Static void ehci_device_bulk_close(usbd_pipe_handle); 173 Static void ehci_device_bulk_done(usbd_xfer_handle); 174 175 Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle); 176 Static usbd_status ehci_device_intr_start(usbd_xfer_handle); 177 Static void ehci_device_intr_abort(usbd_xfer_handle); 178 Static void ehci_device_intr_close(usbd_pipe_handle); 179 Static void ehci_device_intr_done(usbd_xfer_handle); 180 181 Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle); 182 Static usbd_status ehci_device_isoc_start(usbd_xfer_handle); 183 Static void ehci_device_isoc_abort(usbd_xfer_handle); 184 Static void ehci_device_isoc_close(usbd_pipe_handle); 185 Static void ehci_device_isoc_done(usbd_xfer_handle); 186 187 Static void ehci_device_clear_toggle(usbd_pipe_handle pipe); 188 Static void ehci_noop(usbd_pipe_handle pipe); 189 190 Static void ehci_pcd(ehci_softc_t *, usbd_xfer_handle); 191 Static void ehci_disown(ehci_softc_t *, int, int); 192 193 Static ehci_soft_qh_t *ehci_alloc_sqh(ehci_softc_t *); 194 Static void ehci_free_sqh(ehci_softc_t *, ehci_soft_qh_t *); 195 196 Static ehci_soft_qtd_t *ehci_alloc_sqtd(ehci_softc_t *); 197 Static void ehci_free_sqtd(ehci_softc_t *, ehci_soft_qtd_t *); 198 Static usbd_status ehci_alloc_sqtd_chain(struct ehci_pipe *, 199 ehci_softc_t *, int, int, usbd_xfer_handle, 200 ehci_soft_qtd_t **, ehci_soft_qtd_t **); 201 Static void ehci_free_sqtd_chain(ehci_softc_t *, ehci_soft_qtd_t *, 202 ehci_soft_qtd_t *); 203 204 Static usbd_status ehci_device_request(usbd_xfer_handle xfer); 205 206 Static usbd_status ehci_device_setintr(ehci_softc_t *, ehci_soft_qh_t *, 207 int ival); 208 209 Static void ehci_add_qh(ehci_soft_qh_t *, ehci_soft_qh_t *); 210 Static void ehci_rem_qh(ehci_softc_t *, ehci_soft_qh_t *, 211 ehci_soft_qh_t *); 212 Static void ehci_set_qh_qtd(ehci_soft_qh_t *, ehci_soft_qtd_t *); 213 Static void ehci_sync_hc(ehci_softc_t *); 214 215 Static void ehci_close_pipe(usbd_pipe_handle, ehci_soft_qh_t *); 216 Static void ehci_abort_xfer(usbd_xfer_handle, usbd_status); 217 218 #ifdef EHCI_DEBUG 219 Static void ehci_dump_regs(ehci_softc_t *); 220 void ehci_dump(void); 221 Static ehci_softc_t *theehci; 222 Static void ehci_dump_link(ehci_link_t, int); 223 Static void ehci_dump_sqtds(ehci_soft_qtd_t *); 224 Static void ehci_dump_sqtd(ehci_soft_qtd_t *); 225 Static void ehci_dump_qtd(ehci_qtd_t *); 226 Static void ehci_dump_sqh(ehci_soft_qh_t *); 227 #ifdef DIAGNOSTIC 228 Static void ehci_dump_exfer(struct ehci_xfer *); 229 #endif 230 #endif 231 232 #define EHCI_NULL htole32(EHCI_LINK_TERMINATE) 233 234 #define EHCI_INTR_ENDPT 1 235 236 #define ehci_add_intr_list(sc, ex) \ 237 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ex), inext); 238 #define ehci_del_intr_list(ex) \ 239 do { \ 240 LIST_REMOVE((ex), inext); \ 241 (ex)->inext.le_prev = NULL; \ 242 } while (0) 243 #define ehci_active_intr_list(ex) ((ex)->inext.le_prev != NULL) 244 245 Static const struct usbd_bus_methods ehci_bus_methods = { 246 ehci_open, 247 ehci_softintr, 248 ehci_poll, 249 ehci_allocm, 250 ehci_freem, 251 ehci_allocx, 252 ehci_freex, 253 }; 254 255 Static const struct usbd_pipe_methods ehci_root_ctrl_methods = { 256 ehci_root_ctrl_transfer, 257 ehci_root_ctrl_start, 258 ehci_root_ctrl_abort, 259 ehci_root_ctrl_close, 260 ehci_noop, 261 ehci_root_ctrl_done, 262 }; 263 264 Static const struct usbd_pipe_methods ehci_root_intr_methods = { 265 ehci_root_intr_transfer, 266 ehci_root_intr_start, 267 ehci_root_intr_abort, 268 ehci_root_intr_close, 269 ehci_noop, 270 ehci_root_intr_done, 271 }; 272 273 Static const struct usbd_pipe_methods ehci_device_ctrl_methods = { 274 ehci_device_ctrl_transfer, 275 ehci_device_ctrl_start, 276 ehci_device_ctrl_abort, 277 ehci_device_ctrl_close, 278 ehci_noop, 279 ehci_device_ctrl_done, 280 }; 281 282 Static const struct usbd_pipe_methods ehci_device_intr_methods = { 283 ehci_device_intr_transfer, 284 ehci_device_intr_start, 285 ehci_device_intr_abort, 286 ehci_device_intr_close, 287 ehci_device_clear_toggle, 288 ehci_device_intr_done, 289 }; 290 291 Static const struct usbd_pipe_methods ehci_device_bulk_methods = { 292 ehci_device_bulk_transfer, 293 ehci_device_bulk_start, 294 ehci_device_bulk_abort, 295 ehci_device_bulk_close, 296 ehci_device_clear_toggle, 297 ehci_device_bulk_done, 298 }; 299 300 Static const struct usbd_pipe_methods ehci_device_isoc_methods = { 301 ehci_device_isoc_transfer, 302 ehci_device_isoc_start, 303 ehci_device_isoc_abort, 304 ehci_device_isoc_close, 305 ehci_noop, 306 ehci_device_isoc_done, 307 }; 308 309 static const uint8_t revbits[EHCI_MAX_POLLRATE] = { 310 0x00,0x40,0x20,0x60,0x10,0x50,0x30,0x70,0x08,0x48,0x28,0x68,0x18,0x58,0x38,0x78, 311 0x04,0x44,0x24,0x64,0x14,0x54,0x34,0x74,0x0c,0x4c,0x2c,0x6c,0x1c,0x5c,0x3c,0x7c, 312 0x02,0x42,0x22,0x62,0x12,0x52,0x32,0x72,0x0a,0x4a,0x2a,0x6a,0x1a,0x5a,0x3a,0x7a, 313 0x06,0x46,0x26,0x66,0x16,0x56,0x36,0x76,0x0e,0x4e,0x2e,0x6e,0x1e,0x5e,0x3e,0x7e, 314 0x01,0x41,0x21,0x61,0x11,0x51,0x31,0x71,0x09,0x49,0x29,0x69,0x19,0x59,0x39,0x79, 315 0x05,0x45,0x25,0x65,0x15,0x55,0x35,0x75,0x0d,0x4d,0x2d,0x6d,0x1d,0x5d,0x3d,0x7d, 316 0x03,0x43,0x23,0x63,0x13,0x53,0x33,0x73,0x0b,0x4b,0x2b,0x6b,0x1b,0x5b,0x3b,0x7b, 317 0x07,0x47,0x27,0x67,0x17,0x57,0x37,0x77,0x0f,0x4f,0x2f,0x6f,0x1f,0x5f,0x3f,0x7f, 318 }; 319 320 usbd_status 321 ehci_init(ehci_softc_t *sc) 322 { 323 u_int32_t vers, sparams, cparams, hcr; 324 u_int i; 325 usbd_status err; 326 ehci_soft_qh_t *sqh; 327 u_int ncomp; 328 329 DPRINTF(("ehci_init: start\n")); 330 #ifdef EHCI_DEBUG 331 theehci = sc; 332 #endif 333 334 sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH); 335 336 vers = EREAD2(sc, EHCI_HCIVERSION); 337 aprint_verbose("%s: EHCI version %x.%x\n", USBDEVNAME(sc->sc_bus.bdev), 338 vers >> 8, vers & 0xff); 339 340 sparams = EREAD4(sc, EHCI_HCSPARAMS); 341 DPRINTF(("ehci_init: sparams=0x%x\n", sparams)); 342 sc->sc_npcomp = EHCI_HCS_N_PCC(sparams); 343 ncomp = EHCI_HCS_N_CC(sparams); 344 if (ncomp != sc->sc_ncomp) { 345 aprint_verbose("%s: wrong number of companions (%d != %d)\n", 346 USBDEVNAME(sc->sc_bus.bdev), 347 ncomp, sc->sc_ncomp); 348 #if NOHCI == 0 || NUHCI == 0 349 aprint_error("%s: ohci or uhci probably not configured\n", 350 USBDEVNAME(sc->sc_bus.bdev)); 351 #endif 352 if (ncomp < sc->sc_ncomp) 353 sc->sc_ncomp = ncomp; 354 } 355 if (sc->sc_ncomp > 0) { 356 aprint_normal("%s: companion controller%s, %d port%s each:", 357 USBDEVNAME(sc->sc_bus.bdev), sc->sc_ncomp!=1 ? "s" : "", 358 EHCI_HCS_N_PCC(sparams), 359 EHCI_HCS_N_PCC(sparams)!=1 ? "s" : ""); 360 for (i = 0; i < sc->sc_ncomp; i++) 361 aprint_normal(" %s", USBDEVNAME(sc->sc_comps[i]->bdev)); 362 aprint_normal("\n"); 363 } 364 sc->sc_noport = EHCI_HCS_N_PORTS(sparams); 365 cparams = EREAD4(sc, EHCI_HCCPARAMS); 366 DPRINTF(("ehci_init: cparams=0x%x\n", cparams)); 367 sc->sc_hasppc = EHCI_HCS_PPC(sparams); 368 369 if (EHCI_HCC_64BIT(cparams)) { 370 /* MUST clear segment register if 64 bit capable. */ 371 EWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 372 } 373 374 sc->sc_bus.usbrev = USBREV_2_0; 375 376 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 377 USB_MEM_RESERVE); 378 379 /* Reset the controller */ 380 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 381 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 382 usb_delay_ms(&sc->sc_bus, 1); 383 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 384 for (i = 0; i < 100; i++) { 385 usb_delay_ms(&sc->sc_bus, 1); 386 hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; 387 if (!hcr) 388 break; 389 } 390 if (hcr) { 391 aprint_error("%s: reset timeout\n", 392 USBDEVNAME(sc->sc_bus.bdev)); 393 return (USBD_IOERROR); 394 } 395 396 /* XXX need proper intr scheduling */ 397 sc->sc_rand = 96; 398 399 /* frame list size at default, read back what we got and use that */ 400 switch (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD))) { 401 case 0: sc->sc_flsize = 1024; break; 402 case 1: sc->sc_flsize = 512; break; 403 case 2: sc->sc_flsize = 256; break; 404 case 3: return (USBD_IOERROR); 405 } 406 err = usb_allocmem(&sc->sc_bus, sc->sc_flsize * sizeof(ehci_link_t), 407 EHCI_FLALIGN_ALIGN, &sc->sc_fldma); 408 if (err) 409 return (err); 410 DPRINTF(("%s: flsize=%d\n", USBDEVNAME(sc->sc_bus.bdev),sc->sc_flsize)); 411 sc->sc_flist = KERNADDR(&sc->sc_fldma, 0); 412 EOWRITE4(sc, EHCI_PERIODICLISTBASE, DMAADDR(&sc->sc_fldma, 0)); 413 414 /* Set up the bus struct. */ 415 sc->sc_bus.methods = &ehci_bus_methods; 416 sc->sc_bus.pipe_size = sizeof(struct ehci_pipe); 417 418 sc->sc_shutdownhook = shutdownhook_establish(ehci_shutdown, sc); 419 420 sc->sc_eintrs = EHCI_NORMAL_INTRS; 421 422 /* 423 * Allocate the interrupt dummy QHs. These are arranged to give poll 424 * intervals that are powers of 2 times 1ms. 425 */ 426 for (i = 0; i < EHCI_INTRQHS; i++) { 427 sqh = ehci_alloc_sqh(sc); 428 if (sqh == NULL) { 429 err = USBD_NOMEM; 430 goto bad1; 431 } 432 sc->sc_islots[i].sqh = sqh; 433 } 434 for (i = 0; i < EHCI_INTRQHS; i++) { 435 sqh = sc->sc_islots[i].sqh; 436 if (i == 0) { 437 /* The last (1ms) QH terminates. */ 438 sqh->qh.qh_link = EHCI_NULL; 439 sqh->next = NULL; 440 } else { 441 /* Otherwise the next QH has half the poll interval */ 442 sqh->next = sc->sc_islots[(i + 1) / 2 - 1].sqh; 443 sqh->qh.qh_link = htole32(sqh->next->physaddr | 444 EHCI_LINK_QH); 445 } 446 sqh->qh.qh_endp = htole32(EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH)); 447 sqh->qh.qh_curqtd = EHCI_NULL; 448 sqh->next = NULL; 449 sqh->qh.qh_qtd.qtd_next = EHCI_NULL; 450 sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; 451 sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_HALTED); 452 sqh->sqtd = NULL; 453 } 454 /* Point the frame list at the last level (128ms). */ 455 for (i = 0; i < sc->sc_flsize; i++) { 456 int j; 457 458 j = (i & ~(EHCI_MAX_POLLRATE-1)) | 459 revbits[i & (EHCI_MAX_POLLRATE-1)]; 460 sc->sc_flist[j] = htole32(EHCI_LINK_QH | 461 sc->sc_islots[EHCI_IQHIDX(EHCI_IPOLLRATES - 1, 462 i)].sqh->physaddr); 463 } 464 465 /* Allocate dummy QH that starts the async list. */ 466 sqh = ehci_alloc_sqh(sc); 467 if (sqh == NULL) { 468 err = USBD_NOMEM; 469 goto bad1; 470 } 471 /* Fill the QH */ 472 sqh->qh.qh_endp = 473 htole32(EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) | EHCI_QH_HRECL); 474 sqh->qh.qh_link = 475 htole32(sqh->physaddr | EHCI_LINK_QH); 476 sqh->qh.qh_curqtd = EHCI_NULL; 477 sqh->next = NULL; 478 /* Fill the overlay qTD */ 479 sqh->qh.qh_qtd.qtd_next = EHCI_NULL; 480 sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; 481 sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_HALTED); 482 sqh->sqtd = NULL; 483 #ifdef EHCI_DEBUG 484 if (ehcidebug) { 485 ehci_dump_sqh(sqh); 486 } 487 #endif 488 489 /* Point to async list */ 490 sc->sc_async_head = sqh; 491 EOWRITE4(sc, EHCI_ASYNCLISTADDR, sqh->physaddr | EHCI_LINK_QH); 492 493 usb_callout_init(sc->sc_tmo_intrlist); 494 495 mutex_init(&sc->sc_doorbell_lock, MUTEX_DEFAULT, IPL_NONE); 496 497 /* Turn on controller */ 498 EOWRITE4(sc, EHCI_USBCMD, 499 EHCI_CMD_ITC_2 | /* 2 microframes interrupt delay */ 500 (EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_FLS_M) | 501 EHCI_CMD_ASE | 502 EHCI_CMD_PSE | 503 EHCI_CMD_RS); 504 505 /* Take over port ownership */ 506 EOWRITE4(sc, EHCI_CONFIGFLAG, EHCI_CONF_CF); 507 508 for (i = 0; i < 100; i++) { 509 usb_delay_ms(&sc->sc_bus, 1); 510 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 511 if (!hcr) 512 break; 513 } 514 if (hcr) { 515 aprint_error("%s: run timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 516 return (USBD_IOERROR); 517 } 518 519 /* Enable interrupts */ 520 DPRINTFN(1,("ehci_init: enabling\n")); 521 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 522 523 return (USBD_NORMAL_COMPLETION); 524 525 #if 0 526 bad2: 527 ehci_free_sqh(sc, sc->sc_async_head); 528 #endif 529 bad1: 530 usb_freemem(&sc->sc_bus, &sc->sc_fldma); 531 return (err); 532 } 533 534 int 535 ehci_intr(void *v) 536 { 537 ehci_softc_t *sc = v; 538 539 if (sc == NULL || sc->sc_dying || !device_has_power(&sc->sc_bus.bdev)) 540 return (0); 541 542 /* If we get an interrupt while polling, then just ignore it. */ 543 if (sc->sc_bus.use_polling) { 544 u_int32_t intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 545 546 if (intrs) 547 EOWRITE4(sc, EHCI_USBSTS, intrs); /* Acknowledge */ 548 #ifdef DIAGNOSTIC 549 DPRINTFN(16, ("ehci_intr: ignored interrupt while polling\n")); 550 #endif 551 return (0); 552 } 553 554 return (ehci_intr1(sc)); 555 } 556 557 Static int 558 ehci_intr1(ehci_softc_t *sc) 559 { 560 u_int32_t intrs, eintrs; 561 562 DPRINTFN(20,("ehci_intr1: enter\n")); 563 564 /* In case the interrupt occurs before initialization has completed. */ 565 if (sc == NULL) { 566 #ifdef DIAGNOSTIC 567 printf("ehci_intr1: sc == NULL\n"); 568 #endif 569 return (0); 570 } 571 572 intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 573 if (!intrs) 574 return (0); 575 576 eintrs = intrs & sc->sc_eintrs; 577 DPRINTFN(7, ("ehci_intr1: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 578 sc, (u_int)intrs, EOREAD4(sc, EHCI_USBSTS), 579 (u_int)eintrs)); 580 if (!eintrs) 581 return (0); 582 583 EOWRITE4(sc, EHCI_USBSTS, intrs); /* Acknowledge */ 584 sc->sc_bus.intr_context++; 585 sc->sc_bus.no_intrs++; 586 if (eintrs & EHCI_STS_IAA) { 587 DPRINTF(("ehci_intr1: door bell\n")); 588 wakeup(&sc->sc_async_head); 589 eintrs &= ~EHCI_STS_IAA; 590 } 591 if (eintrs & (EHCI_STS_INT | EHCI_STS_ERRINT)) { 592 DPRINTFN(5,("ehci_intr1: %s %s\n", 593 eintrs & EHCI_STS_INT ? "INT" : "", 594 eintrs & EHCI_STS_ERRINT ? "ERRINT" : "")); 595 usb_schedsoftintr(&sc->sc_bus); 596 eintrs &= ~(EHCI_STS_INT | EHCI_STS_ERRINT); 597 } 598 if (eintrs & EHCI_STS_HSE) { 599 printf("%s: unrecoverable error, controller halted\n", 600 USBDEVNAME(sc->sc_bus.bdev)); 601 /* XXX what else */ 602 } 603 if (eintrs & EHCI_STS_PCD) { 604 ehci_pcd(sc, sc->sc_intrxfer); 605 eintrs &= ~EHCI_STS_PCD; 606 } 607 608 sc->sc_bus.intr_context--; 609 610 if (eintrs != 0) { 611 /* Block unprocessed interrupts. */ 612 sc->sc_eintrs &= ~eintrs; 613 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 614 printf("%s: blocking intrs 0x%x\n", 615 USBDEVNAME(sc->sc_bus.bdev), eintrs); 616 } 617 618 return (1); 619 } 620 621 622 void 623 ehci_pcd(ehci_softc_t *sc, usbd_xfer_handle xfer) 624 { 625 usbd_pipe_handle pipe; 626 u_char *p; 627 int i, m; 628 629 if (xfer == NULL) { 630 /* Just ignore the change. */ 631 return; 632 } 633 634 pipe = xfer->pipe; 635 636 p = KERNADDR(&xfer->dmabuf, 0); 637 m = min(sc->sc_noport, xfer->length * 8 - 1); 638 memset(p, 0, xfer->length); 639 for (i = 1; i <= m; i++) { 640 /* Pick out CHANGE bits from the status reg. */ 641 if (EOREAD4(sc, EHCI_PORTSC(i)) & EHCI_PS_CLEAR) 642 p[i/8] |= 1 << (i%8); 643 } 644 DPRINTF(("ehci_pcd: change=0x%02x\n", *p)); 645 xfer->actlen = xfer->length; 646 xfer->status = USBD_NORMAL_COMPLETION; 647 648 usb_transfer_complete(xfer); 649 } 650 651 void 652 ehci_softintr(void *v) 653 { 654 ehci_softc_t *sc = v; 655 struct ehci_xfer *ex, *nextex; 656 657 DPRINTFN(10,("%s: ehci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 658 sc->sc_bus.intr_context)); 659 660 sc->sc_bus.intr_context++; 661 662 /* 663 * The only explanation I can think of for why EHCI is as brain dead 664 * as UHCI interrupt-wise is that Intel was involved in both. 665 * An interrupt just tells us that something is done, we have no 666 * clue what, so we need to scan through all active transfers. :-( 667 */ 668 for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = nextex) { 669 nextex = LIST_NEXT(ex, inext); 670 ehci_check_intr(sc, ex); 671 } 672 673 /* Schedule a callout to catch any dropped transactions. */ 674 if ((sc->sc_flags & EHCIF_DROPPED_INTR_WORKAROUND) && 675 !LIST_EMPTY(&sc->sc_intrhead)) 676 usb_callout(sc->sc_tmo_intrlist, hz, 677 ehci_intrlist_timeout, sc); 678 679 #ifdef USB_USE_SOFTINTR 680 if (sc->sc_softwake) { 681 sc->sc_softwake = 0; 682 wakeup(&sc->sc_softwake); 683 } 684 #endif /* USB_USE_SOFTINTR */ 685 686 sc->sc_bus.intr_context--; 687 } 688 689 /* Check for an interrupt. */ 690 void 691 ehci_check_intr(ehci_softc_t *sc, struct ehci_xfer *ex) 692 { 693 ehci_soft_qtd_t *sqtd, *lsqtd; 694 u_int32_t status; 695 696 DPRINTFN(/*15*/2, ("ehci_check_intr: ex=%p\n", ex)); 697 698 if (ex->sqtdstart == NULL) { 699 printf("ehci_check_intr: sqtdstart=NULL\n"); 700 return; 701 } 702 lsqtd = ex->sqtdend; 703 #ifdef DIAGNOSTIC 704 if (lsqtd == NULL) { 705 printf("ehci_check_intr: lsqtd==0\n"); 706 return; 707 } 708 #endif 709 /* 710 * If the last TD is still active we need to check whether there 711 * is a an error somewhere in the middle, or whether there was a 712 * short packet (SPD and not ACTIVE). 713 */ 714 if (le32toh(lsqtd->qtd.qtd_status) & EHCI_QTD_ACTIVE) { 715 DPRINTFN(12, ("ehci_check_intr: active ex=%p\n", ex)); 716 for (sqtd = ex->sqtdstart; sqtd != lsqtd; sqtd=sqtd->nextqtd) { 717 status = le32toh(sqtd->qtd.qtd_status); 718 /* If there's an active QTD the xfer isn't done. */ 719 if (status & EHCI_QTD_ACTIVE) 720 break; 721 /* Any kind of error makes the xfer done. */ 722 if (status & EHCI_QTD_HALTED) 723 goto done; 724 /* We want short packets, and it is short: it's done */ 725 if (EHCI_QTD_GET_BYTES(status) != 0) 726 goto done; 727 } 728 DPRINTFN(12, ("ehci_check_intr: ex=%p std=%p still active\n", 729 ex, ex->sqtdstart)); 730 return; 731 } 732 done: 733 DPRINTFN(12, ("ehci_check_intr: ex=%p done\n", ex)); 734 usb_uncallout(ex->xfer.timeout_handle, ehci_timeout, ex); 735 ehci_idone(ex); 736 } 737 738 void 739 ehci_idone(struct ehci_xfer *ex) 740 { 741 usbd_xfer_handle xfer = &ex->xfer; 742 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 743 ehci_soft_qtd_t *sqtd, *lsqtd; 744 u_int32_t status = 0, nstatus = 0; 745 int actlen; 746 747 DPRINTFN(/*12*/2, ("ehci_idone: ex=%p\n", ex)); 748 #ifdef DIAGNOSTIC 749 { 750 int s = splhigh(); 751 if (ex->isdone) { 752 splx(s); 753 #ifdef EHCI_DEBUG 754 printf("ehci_idone: ex is done!\n "); 755 ehci_dump_exfer(ex); 756 #else 757 printf("ehci_idone: ex=%p is done!\n", ex); 758 #endif 759 return; 760 } 761 ex->isdone = 1; 762 splx(s); 763 } 764 #endif 765 766 if (xfer->status == USBD_CANCELLED || 767 xfer->status == USBD_TIMEOUT) { 768 DPRINTF(("ehci_idone: aborted xfer=%p\n", xfer)); 769 return; 770 } 771 772 #ifdef EHCI_DEBUG 773 DPRINTFN(/*10*/2, ("ehci_idone: xfer=%p, pipe=%p ready\n", xfer, epipe)); 774 if (ehcidebug > 10) 775 ehci_dump_sqtds(ex->sqtdstart); 776 #endif 777 778 /* The transfer is done, compute actual length and status. */ 779 lsqtd = ex->sqtdend; 780 actlen = 0; 781 for (sqtd = ex->sqtdstart; sqtd != lsqtd->nextqtd; sqtd=sqtd->nextqtd) { 782 nstatus = le32toh(sqtd->qtd.qtd_status); 783 if (nstatus & EHCI_QTD_ACTIVE) 784 break; 785 786 status = nstatus; 787 if (EHCI_QTD_GET_PID(status) != EHCI_QTD_PID_SETUP) 788 actlen += sqtd->len - EHCI_QTD_GET_BYTES(status); 789 } 790 791 /* 792 * If there are left over TDs we need to update the toggle. 793 * The default pipe doesn't need it since control transfers 794 * start the toggle at 0 every time. 795 * For a short transfer we need to update the toggle for the missing 796 * packets within the qTD. 797 */ 798 if ((sqtd != lsqtd->nextqtd || EHCI_QTD_GET_BYTES(status)) && 799 xfer->pipe->device->default_pipe != xfer->pipe) { 800 DPRINTFN(2, ("ehci_idone: need toggle update " 801 "status=%08x nstatus=%08x\n", status, nstatus)); 802 #if 0 803 ehci_dump_sqh(epipe->sqh); 804 ehci_dump_sqtds(ex->sqtdstart); 805 #endif 806 epipe->nexttoggle = EHCI_QTD_GET_TOGGLE(nstatus); 807 } 808 809 DPRINTFN(/*10*/2, ("ehci_idone: len=%d, actlen=%d, status=0x%x\n", 810 xfer->length, actlen, status)); 811 xfer->actlen = actlen; 812 if (status & EHCI_QTD_HALTED) { 813 #ifdef EHCI_DEBUG 814 char sbuf[128]; 815 816 bitmask_snprintf((u_int32_t)status, 817 "\20\7HALTED\6BUFERR\5BABBLE\4XACTERR" 818 "\3MISSED\1PINGSTATE", sbuf, sizeof(sbuf)); 819 820 DPRINTFN(2, ("ehci_idone: error, addr=%d, endpt=0x%02x, " 821 "status 0x%s\n", 822 xfer->pipe->device->address, 823 xfer->pipe->endpoint->edesc->bEndpointAddress, 824 sbuf)); 825 if (ehcidebug > 2) { 826 ehci_dump_sqh(epipe->sqh); 827 ehci_dump_sqtds(ex->sqtdstart); 828 } 829 #endif 830 /* low&full speed has an extra error flag */ 831 if (EHCI_QH_GET_EPS(epipe->sqh->qh.qh_endp) != 832 EHCI_QH_SPEED_HIGH) 833 status &= EHCI_QTD_STATERRS | EHCI_QTD_PINGSTATE; 834 else 835 status &= EHCI_QTD_STATERRS; 836 if (status == 0) /* no other errors means a stall */ 837 xfer->status = USBD_STALLED; 838 else 839 xfer->status = USBD_IOERROR; /* more info XXX */ 840 /* XXX need to reset TT on missed microframe */ 841 if (status & EHCI_QTD_MISSEDMICRO) { 842 ehci_softc_t *sc = (ehci_softc_t *) 843 xfer->pipe->device->bus; 844 845 printf("%s: missed microframe, TT reset not " 846 "implemented, hub might be inoperational\n", 847 USBDEVNAME(sc->sc_bus.bdev)); 848 } 849 } else { 850 xfer->status = USBD_NORMAL_COMPLETION; 851 } 852 853 usb_transfer_complete(xfer); 854 DPRINTFN(/*12*/2, ("ehci_idone: ex=%p done\n", ex)); 855 } 856 857 /* 858 * Wait here until controller claims to have an interrupt. 859 * Then call ehci_intr and return. Use timeout to avoid waiting 860 * too long. 861 */ 862 void 863 ehci_waitintr(ehci_softc_t *sc, usbd_xfer_handle xfer) 864 { 865 int timo; 866 u_int32_t intrs; 867 868 xfer->status = USBD_IN_PROGRESS; 869 for (timo = xfer->timeout; timo >= 0; timo--) { 870 usb_delay_ms(&sc->sc_bus, 1); 871 if (sc->sc_dying) 872 break; 873 intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)) & 874 sc->sc_eintrs; 875 DPRINTFN(15,("ehci_waitintr: 0x%04x\n", intrs)); 876 #ifdef EHCI_DEBUG 877 if (ehcidebug > 15) 878 ehci_dump_regs(sc); 879 #endif 880 if (intrs) { 881 ehci_intr1(sc); 882 if (xfer->status != USBD_IN_PROGRESS) 883 return; 884 } 885 } 886 887 /* Timeout */ 888 DPRINTF(("ehci_waitintr: timeout\n")); 889 xfer->status = USBD_TIMEOUT; 890 usb_transfer_complete(xfer); 891 /* XXX should free TD */ 892 } 893 894 void 895 ehci_poll(struct usbd_bus *bus) 896 { 897 ehci_softc_t *sc = (ehci_softc_t *)bus; 898 #ifdef EHCI_DEBUG 899 static int last; 900 int new; 901 new = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 902 if (new != last) { 903 DPRINTFN(10,("ehci_poll: intrs=0x%04x\n", new)); 904 last = new; 905 } 906 #endif 907 908 if (EOREAD4(sc, EHCI_USBSTS) & sc->sc_eintrs) 909 ehci_intr1(sc); 910 } 911 912 void 913 ehci_childdet(device_t self, device_t child) 914 { 915 struct ehci_softc *sc = device_private(self); 916 917 KASSERT(sc->sc_child == child); 918 sc->sc_child = NULL; 919 } 920 921 int 922 ehci_detach(struct ehci_softc *sc, int flags) 923 { 924 int rv = 0; 925 926 if (sc->sc_child != NULL) 927 rv = config_detach(sc->sc_child, flags); 928 929 if (rv != 0) 930 return (rv); 931 932 usb_uncallout(sc->sc_tmo_intrlist, ehci_intrlist_timeout, sc); 933 934 if (sc->sc_shutdownhook != NULL) 935 shutdownhook_disestablish(sc->sc_shutdownhook); 936 937 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 938 939 /* XXX free other data structures XXX */ 940 mutex_destroy(&sc->sc_doorbell_lock); 941 942 EOWRITE4(sc, EHCI_CONFIGFLAG, 0); 943 944 return (rv); 945 } 946 947 948 int 949 ehci_activate(device_t self, enum devact act) 950 { 951 struct ehci_softc *sc = device_private(self); 952 int rv = 0; 953 954 switch (act) { 955 case DVACT_ACTIVATE: 956 return (EOPNOTSUPP); 957 958 case DVACT_DEACTIVATE: 959 sc->sc_dying = 1; 960 if (sc->sc_child != NULL) 961 rv = config_deactivate(sc->sc_child); 962 break; 963 } 964 return (rv); 965 } 966 967 /* 968 * Handle suspend/resume. 969 * 970 * We need to switch to polling mode here, because this routine is 971 * called from an interrupt context. This is all right since we 972 * are almost suspended anyway. 973 * 974 * Note that this power handler isn't to be registered directly; the 975 * bus glue needs to call out to it. 976 */ 977 bool 978 ehci_suspend(device_t dv PMF_FN_ARGS) 979 { 980 ehci_softc_t *sc = device_private(dv); 981 int i, s; 982 uint32_t cmd, hcr; 983 984 s = splhardusb(); 985 986 sc->sc_bus.use_polling++; 987 988 for (i = 1; i <= sc->sc_noport; i++) { 989 cmd = EOREAD4(sc, EHCI_PORTSC(i)) & ~EHCI_PS_CLEAR; 990 if ((cmd & EHCI_PS_PO) == 0 && (cmd & EHCI_PS_PE) == EHCI_PS_PE) 991 EOWRITE4(sc, EHCI_PORTSC(i), cmd | EHCI_PS_SUSP); 992 } 993 994 sc->sc_cmd = EOREAD4(sc, EHCI_USBCMD); 995 996 cmd = sc->sc_cmd & ~(EHCI_CMD_ASE | EHCI_CMD_PSE); 997 EOWRITE4(sc, EHCI_USBCMD, cmd); 998 999 for (i = 0; i < 100; i++) { 1000 hcr = EOREAD4(sc, EHCI_USBSTS) & (EHCI_STS_ASS | EHCI_STS_PSS); 1001 if (hcr == 0) 1002 break; 1003 1004 usb_delay_ms(&sc->sc_bus, 1); 1005 } 1006 if (hcr != 0) 1007 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 1008 1009 cmd &= ~EHCI_CMD_RS; 1010 EOWRITE4(sc, EHCI_USBCMD, cmd); 1011 1012 for (i = 0; i < 100; i++) { 1013 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 1014 if (hcr == EHCI_STS_HCH) 1015 break; 1016 1017 usb_delay_ms(&sc->sc_bus, 1); 1018 } 1019 if (hcr != EHCI_STS_HCH) 1020 printf("%s: config timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 1021 1022 sc->sc_bus.use_polling--; 1023 splx(s); 1024 1025 return true; 1026 } 1027 1028 bool 1029 ehci_resume(device_t dv PMF_FN_ARGS) 1030 { 1031 ehci_softc_t *sc = device_private(dv); 1032 int i; 1033 uint32_t cmd, hcr; 1034 1035 /* restore things in case the bios sucks */ 1036 EOWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 1037 EOWRITE4(sc, EHCI_PERIODICLISTBASE, DMAADDR(&sc->sc_fldma, 0)); 1038 EOWRITE4(sc, EHCI_ASYNCLISTADDR, 1039 sc->sc_async_head->physaddr | EHCI_LINK_QH); 1040 1041 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs & ~EHCI_INTR_PCIE); 1042 1043 EOWRITE4(sc, EHCI_USBCMD, sc->sc_cmd); 1044 1045 hcr = 0; 1046 for (i = 1; i <= sc->sc_noport; i++) { 1047 cmd = EOREAD4(sc, EHCI_PORTSC(i)) & ~EHCI_PS_CLEAR; 1048 if ((cmd & EHCI_PS_PO) == 0 && 1049 (cmd & EHCI_PS_SUSP) == EHCI_PS_SUSP) { 1050 EOWRITE4(sc, EHCI_PORTSC(i), cmd | EHCI_PS_FPR); 1051 hcr = 1; 1052 } 1053 } 1054 1055 if (hcr) { 1056 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 1057 1058 for (i = 1; i <= sc->sc_noport; i++) { 1059 cmd = EOREAD4(sc, EHCI_PORTSC(i)) & ~EHCI_PS_CLEAR; 1060 if ((cmd & EHCI_PS_PO) == 0 && 1061 (cmd & EHCI_PS_SUSP) == EHCI_PS_SUSP) 1062 EOWRITE4(sc, EHCI_PORTSC(i), 1063 cmd & ~EHCI_PS_FPR); 1064 } 1065 } 1066 1067 EOWRITE4(sc, EHCI_USBCMD, sc->sc_cmd); 1068 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 1069 1070 for (i = 0; i < 100; i++) { 1071 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 1072 if (hcr != EHCI_STS_HCH) 1073 break; 1074 1075 usb_delay_ms(&sc->sc_bus, 1); 1076 } 1077 if (hcr == EHCI_STS_HCH) 1078 printf("%s: config timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 1079 1080 return true; 1081 } 1082 1083 /* 1084 * Shut down the controller when the system is going down. 1085 */ 1086 void 1087 ehci_shutdown(void *v) 1088 { 1089 ehci_softc_t *sc = v; 1090 1091 DPRINTF(("ehci_shutdown: stopping the HC\n")); 1092 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 1093 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 1094 } 1095 1096 usbd_status 1097 ehci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 1098 { 1099 struct ehci_softc *sc = (struct ehci_softc *)bus; 1100 usbd_status err; 1101 1102 err = usb_allocmem(&sc->sc_bus, size, 0, dma); 1103 if (err == USBD_NOMEM) 1104 err = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 1105 #ifdef EHCI_DEBUG 1106 if (err) 1107 printf("ehci_allocm: usb_allocmem()=%d\n", err); 1108 #endif 1109 return (err); 1110 } 1111 1112 void 1113 ehci_freem(struct usbd_bus *bus, usb_dma_t *dma) 1114 { 1115 struct ehci_softc *sc = (struct ehci_softc *)bus; 1116 1117 if (dma->block->flags & USB_DMA_RESERVE) { 1118 usb_reserve_freem(&((struct ehci_softc *)bus)->sc_dma_reserve, 1119 dma); 1120 return; 1121 } 1122 usb_freemem(&sc->sc_bus, dma); 1123 } 1124 1125 usbd_xfer_handle 1126 ehci_allocx(struct usbd_bus *bus) 1127 { 1128 struct ehci_softc *sc = (struct ehci_softc *)bus; 1129 usbd_xfer_handle xfer; 1130 1131 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 1132 if (xfer != NULL) { 1133 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 1134 #ifdef DIAGNOSTIC 1135 if (xfer->busy_free != XFER_FREE) { 1136 printf("ehci_allocx: xfer=%p not free, 0x%08x\n", xfer, 1137 xfer->busy_free); 1138 } 1139 #endif 1140 } else { 1141 xfer = malloc(sizeof(struct ehci_xfer), M_USB, M_NOWAIT); 1142 } 1143 if (xfer != NULL) { 1144 memset(xfer, 0, sizeof(struct ehci_xfer)); 1145 #ifdef DIAGNOSTIC 1146 EXFER(xfer)->isdone = 1; 1147 xfer->busy_free = XFER_BUSY; 1148 #endif 1149 } 1150 return (xfer); 1151 } 1152 1153 void 1154 ehci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 1155 { 1156 struct ehci_softc *sc = (struct ehci_softc *)bus; 1157 1158 #ifdef DIAGNOSTIC 1159 if (xfer->busy_free != XFER_BUSY) { 1160 printf("ehci_freex: xfer=%p not busy, 0x%08x\n", xfer, 1161 xfer->busy_free); 1162 } 1163 xfer->busy_free = XFER_FREE; 1164 if (!EXFER(xfer)->isdone) { 1165 printf("ehci_freex: !isdone\n"); 1166 } 1167 #endif 1168 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 1169 } 1170 1171 Static void 1172 ehci_device_clear_toggle(usbd_pipe_handle pipe) 1173 { 1174 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 1175 1176 DPRINTF(("ehci_device_clear_toggle: epipe=%p status=0x%x\n", 1177 epipe, epipe->sqh->qh.qh_qtd.qtd_status)); 1178 #ifdef USB_DEBUG 1179 if (ehcidebug) 1180 usbd_dump_pipe(pipe); 1181 #endif 1182 epipe->nexttoggle = 0; 1183 } 1184 1185 Static void 1186 ehci_noop(usbd_pipe_handle pipe) 1187 { 1188 } 1189 1190 #ifdef EHCI_DEBUG 1191 void 1192 ehci_dump_regs(ehci_softc_t *sc) 1193 { 1194 int i; 1195 printf("cmd=0x%08x, sts=0x%08x, ien=0x%08x\n", 1196 EOREAD4(sc, EHCI_USBCMD), 1197 EOREAD4(sc, EHCI_USBSTS), 1198 EOREAD4(sc, EHCI_USBINTR)); 1199 printf("frindex=0x%08x ctrdsegm=0x%08x periodic=0x%08x async=0x%08x\n", 1200 EOREAD4(sc, EHCI_FRINDEX), 1201 EOREAD4(sc, EHCI_CTRLDSSEGMENT), 1202 EOREAD4(sc, EHCI_PERIODICLISTBASE), 1203 EOREAD4(sc, EHCI_ASYNCLISTADDR)); 1204 for (i = 1; i <= sc->sc_noport; i++) 1205 printf("port %d status=0x%08x\n", i, 1206 EOREAD4(sc, EHCI_PORTSC(i))); 1207 } 1208 1209 /* 1210 * Unused function - this is meant to be called from a kernel 1211 * debugger. 1212 */ 1213 void 1214 ehci_dump() 1215 { 1216 ehci_dump_regs(theehci); 1217 } 1218 1219 void 1220 ehci_dump_link(ehci_link_t link, int type) 1221 { 1222 link = le32toh(link); 1223 printf("0x%08x", link); 1224 if (link & EHCI_LINK_TERMINATE) 1225 printf("<T>"); 1226 else { 1227 printf("<"); 1228 if (type) { 1229 switch (EHCI_LINK_TYPE(link)) { 1230 case EHCI_LINK_ITD: printf("ITD"); break; 1231 case EHCI_LINK_QH: printf("QH"); break; 1232 case EHCI_LINK_SITD: printf("SITD"); break; 1233 case EHCI_LINK_FSTN: printf("FSTN"); break; 1234 } 1235 } 1236 printf(">"); 1237 } 1238 } 1239 1240 void 1241 ehci_dump_sqtds(ehci_soft_qtd_t *sqtd) 1242 { 1243 int i; 1244 u_int32_t stop; 1245 1246 stop = 0; 1247 for (i = 0; sqtd && i < 20 && !stop; sqtd = sqtd->nextqtd, i++) { 1248 ehci_dump_sqtd(sqtd); 1249 stop = sqtd->qtd.qtd_next & htole32(EHCI_LINK_TERMINATE); 1250 } 1251 if (sqtd) 1252 printf("dump aborted, too many TDs\n"); 1253 } 1254 1255 void 1256 ehci_dump_sqtd(ehci_soft_qtd_t *sqtd) 1257 { 1258 printf("QTD(%p) at 0x%08x:\n", sqtd, sqtd->physaddr); 1259 ehci_dump_qtd(&sqtd->qtd); 1260 } 1261 1262 void 1263 ehci_dump_qtd(ehci_qtd_t *qtd) 1264 { 1265 u_int32_t s; 1266 char sbuf[128]; 1267 1268 printf(" next="); ehci_dump_link(qtd->qtd_next, 0); 1269 printf(" altnext="); ehci_dump_link(qtd->qtd_altnext, 0); 1270 printf("\n"); 1271 s = le32toh(qtd->qtd_status); 1272 bitmask_snprintf(EHCI_QTD_GET_STATUS(s), 1273 "\20\10ACTIVE\7HALTED\6BUFERR\5BABBLE\4XACTERR" 1274 "\3MISSED\2SPLIT\1PING", sbuf, sizeof(sbuf)); 1275 printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n", 1276 s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s), 1277 EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s)); 1278 printf(" cerr=%d pid=%d stat=0x%s\n", EHCI_QTD_GET_CERR(s), 1279 EHCI_QTD_GET_PID(s), sbuf); 1280 for (s = 0; s < 5; s++) 1281 printf(" buffer[%d]=0x%08x\n", s, le32toh(qtd->qtd_buffer[s])); 1282 } 1283 1284 void 1285 ehci_dump_sqh(ehci_soft_qh_t *sqh) 1286 { 1287 ehci_qh_t *qh = &sqh->qh; 1288 u_int32_t endp, endphub; 1289 1290 printf("QH(%p) at 0x%08x:\n", sqh, sqh->physaddr); 1291 printf(" link="); ehci_dump_link(qh->qh_link, 1); printf("\n"); 1292 endp = le32toh(qh->qh_endp); 1293 printf(" endp=0x%08x\n", endp); 1294 printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n", 1295 EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp), 1296 EHCI_QH_GET_ENDPT(endp), EHCI_QH_GET_EPS(endp), 1297 EHCI_QH_GET_DTC(endp), EHCI_QH_GET_HRECL(endp)); 1298 printf(" mpl=0x%x ctl=%d nrl=%d\n", 1299 EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp), 1300 EHCI_QH_GET_NRL(endp)); 1301 endphub = le32toh(qh->qh_endphub); 1302 printf(" endphub=0x%08x\n", endphub); 1303 printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n", 1304 EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub), 1305 EHCI_QH_GET_HUBA(endphub), EHCI_QH_GET_PORT(endphub), 1306 EHCI_QH_GET_MULT(endphub)); 1307 printf(" curqtd="); ehci_dump_link(qh->qh_curqtd, 0); printf("\n"); 1308 printf("Overlay qTD:\n"); 1309 ehci_dump_qtd(&qh->qh_qtd); 1310 } 1311 1312 #ifdef DIAGNOSTIC 1313 Static void 1314 ehci_dump_exfer(struct ehci_xfer *ex) 1315 { 1316 printf("ehci_dump_exfer: ex=%p\n", ex); 1317 } 1318 #endif 1319 #endif 1320 1321 usbd_status 1322 ehci_open(usbd_pipe_handle pipe) 1323 { 1324 usbd_device_handle dev = pipe->device; 1325 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 1326 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1327 u_int8_t addr = dev->address; 1328 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1329 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 1330 ehci_soft_qh_t *sqh; 1331 usbd_status err; 1332 int s; 1333 int ival, speed, naks; 1334 int hshubaddr, hshubport; 1335 1336 DPRINTFN(1, ("ehci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1337 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1338 1339 if (dev->myhsport) { 1340 hshubaddr = dev->myhsport->parent->address; 1341 hshubport = dev->myhsport->portno; 1342 } else { 1343 hshubaddr = 0; 1344 hshubport = 0; 1345 } 1346 1347 if (sc->sc_dying) 1348 return (USBD_IOERROR); 1349 1350 epipe->nexttoggle = 0; 1351 1352 if (addr == sc->sc_addr) { 1353 switch (ed->bEndpointAddress) { 1354 case USB_CONTROL_ENDPOINT: 1355 pipe->methods = &ehci_root_ctrl_methods; 1356 break; 1357 case UE_DIR_IN | EHCI_INTR_ENDPT: 1358 pipe->methods = &ehci_root_intr_methods; 1359 break; 1360 default: 1361 return (USBD_INVAL); 1362 } 1363 return (USBD_NORMAL_COMPLETION); 1364 } 1365 1366 /* XXX All this stuff is only valid for async. */ 1367 switch (dev->speed) { 1368 case USB_SPEED_LOW: speed = EHCI_QH_SPEED_LOW; break; 1369 case USB_SPEED_FULL: speed = EHCI_QH_SPEED_FULL; break; 1370 case USB_SPEED_HIGH: speed = EHCI_QH_SPEED_HIGH; break; 1371 default: panic("ehci_open: bad device speed %d", dev->speed); 1372 } 1373 if (speed != EHCI_QH_SPEED_HIGH && xfertype == UE_ISOCHRONOUS) { 1374 printf("%s: *** WARNING: opening low/full speed isoc device, " 1375 "this does not work yet.\n", 1376 USBDEVNAME(sc->sc_bus.bdev)); 1377 DPRINTFN(1,("ehci_open: hshubaddr=%d hshubport=%d\n", 1378 hshubaddr, hshubport)); 1379 return USBD_INVAL; 1380 } 1381 1382 naks = 8; /* XXX */ 1383 sqh = ehci_alloc_sqh(sc); 1384 if (sqh == NULL) 1385 return (USBD_NOMEM); 1386 /* qh_link filled when the QH is added */ 1387 sqh->qh.qh_endp = htole32( 1388 EHCI_QH_SET_ADDR(addr) | 1389 EHCI_QH_SET_ENDPT(UE_GET_ADDR(ed->bEndpointAddress)) | 1390 EHCI_QH_SET_EPS(speed) | 1391 EHCI_QH_DTC | 1392 EHCI_QH_SET_MPL(UGETW(ed->wMaxPacketSize)) | 1393 (speed != EHCI_QH_SPEED_HIGH && xfertype == UE_CONTROL ? 1394 EHCI_QH_CTL : 0) | 1395 EHCI_QH_SET_NRL(naks) 1396 ); 1397 sqh->qh.qh_endphub = htole32( 1398 EHCI_QH_SET_MULT(1) | 1399 EHCI_QH_SET_HUBA(hshubaddr) | 1400 EHCI_QH_SET_PORT(hshubport) | 1401 EHCI_QH_SET_CMASK(0x08) | /* XXX */ 1402 EHCI_QH_SET_SMASK(xfertype == UE_INTERRUPT ? 0x02 : 0) 1403 ); 1404 sqh->qh.qh_curqtd = EHCI_NULL; 1405 /* Fill the overlay qTD */ 1406 sqh->qh.qh_qtd.qtd_next = EHCI_NULL; 1407 sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; 1408 sqh->qh.qh_qtd.qtd_status = htole32(0); 1409 1410 epipe->sqh = sqh; 1411 1412 switch (xfertype) { 1413 case UE_CONTROL: 1414 err = usb_allocmem(&sc->sc_bus, sizeof(usb_device_request_t), 1415 0, &epipe->u.ctl.reqdma); 1416 #ifdef EHCI_DEBUG 1417 if (err) 1418 printf("ehci_open: usb_allocmem()=%d\n", err); 1419 #endif 1420 if (err) 1421 goto bad; 1422 pipe->methods = &ehci_device_ctrl_methods; 1423 s = splusb(); 1424 ehci_add_qh(sqh, sc->sc_async_head); 1425 splx(s); 1426 break; 1427 case UE_BULK: 1428 pipe->methods = &ehci_device_bulk_methods; 1429 s = splusb(); 1430 ehci_add_qh(sqh, sc->sc_async_head); 1431 splx(s); 1432 break; 1433 case UE_INTERRUPT: 1434 pipe->methods = &ehci_device_intr_methods; 1435 ival = pipe->interval; 1436 if (ival == USBD_DEFAULT_INTERVAL) { 1437 if (speed == EHCI_QH_SPEED_HIGH) { 1438 if (ed->bInterval > 16) { 1439 /* 1440 * illegal with high-speed, but there 1441 * were documentation bugs in the spec, 1442 * so be generous 1443 */ 1444 ival = 256; 1445 } else 1446 ival = (1 << (ed->bInterval - 1)) / 8; 1447 } else 1448 ival = ed->bInterval; 1449 } 1450 err = ehci_device_setintr(sc, sqh, ival); 1451 if (err) 1452 goto bad; 1453 break; 1454 case UE_ISOCHRONOUS: 1455 pipe->methods = &ehci_device_isoc_methods; 1456 /* FALLTHROUGH */ 1457 default: 1458 err = USBD_INVAL; 1459 goto bad; 1460 } 1461 return (USBD_NORMAL_COMPLETION); 1462 1463 bad: 1464 ehci_free_sqh(sc, sqh); 1465 return (err); 1466 } 1467 1468 /* 1469 * Add an ED to the schedule. Called at splusb(). 1470 */ 1471 void 1472 ehci_add_qh(ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) 1473 { 1474 SPLUSBCHECK; 1475 1476 sqh->next = head->next; 1477 sqh->qh.qh_link = head->qh.qh_link; 1478 head->next = sqh; 1479 head->qh.qh_link = htole32(sqh->physaddr | EHCI_LINK_QH); 1480 1481 #ifdef EHCI_DEBUG 1482 if (ehcidebug > 5) { 1483 printf("ehci_add_qh:\n"); 1484 ehci_dump_sqh(sqh); 1485 } 1486 #endif 1487 } 1488 1489 /* 1490 * Remove an ED from the schedule. Called at splusb(). 1491 */ 1492 void 1493 ehci_rem_qh(ehci_softc_t *sc, ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) 1494 { 1495 ehci_soft_qh_t *p; 1496 1497 SPLUSBCHECK; 1498 /* XXX */ 1499 for (p = head; p != NULL && p->next != sqh; p = p->next) 1500 ; 1501 if (p == NULL) 1502 panic("ehci_rem_qh: ED not found"); 1503 p->next = sqh->next; 1504 p->qh.qh_link = sqh->qh.qh_link; 1505 1506 ehci_sync_hc(sc); 1507 } 1508 1509 void 1510 ehci_set_qh_qtd(ehci_soft_qh_t *sqh, ehci_soft_qtd_t *sqtd) 1511 { 1512 int i; 1513 u_int32_t status; 1514 1515 /* Save toggle bit and ping status. */ 1516 status = sqh->qh.qh_qtd.qtd_status & 1517 htole32(EHCI_QTD_TOGGLE_MASK | 1518 EHCI_QTD_SET_STATUS(EHCI_QTD_PINGSTATE)); 1519 /* Set HALTED to make hw leave it alone. */ 1520 sqh->qh.qh_qtd.qtd_status = 1521 htole32(EHCI_QTD_SET_STATUS(EHCI_QTD_HALTED)); 1522 sqh->qh.qh_curqtd = 0; 1523 sqh->qh.qh_qtd.qtd_next = htole32(sqtd->physaddr); 1524 sqh->qh.qh_qtd.qtd_altnext = 0; 1525 for (i = 0; i < EHCI_QTD_NBUFFERS; i++) 1526 sqh->qh.qh_qtd.qtd_buffer[i] = 0; 1527 sqh->sqtd = sqtd; 1528 /* Set !HALTED && !ACTIVE to start execution, preserve some fields */ 1529 sqh->qh.qh_qtd.qtd_status = status; 1530 } 1531 1532 /* 1533 * Ensure that the HC has released all references to the QH. We do this 1534 * by asking for a Async Advance Doorbell interrupt and then we wait for 1535 * the interrupt. 1536 * To make this easier we first obtain exclusive use of the doorbell. 1537 */ 1538 void 1539 ehci_sync_hc(ehci_softc_t *sc) 1540 { 1541 int s, error; 1542 1543 if (sc->sc_dying) { 1544 DPRINTFN(2,("ehci_sync_hc: dying\n")); 1545 return; 1546 } 1547 DPRINTFN(2,("ehci_sync_hc: enter\n")); 1548 mutex_enter(&sc->sc_doorbell_lock); /* get doorbell */ 1549 s = splhardusb(); 1550 /* ask for doorbell */ 1551 EOWRITE4(sc, EHCI_USBCMD, EOREAD4(sc, EHCI_USBCMD) | EHCI_CMD_IAAD); 1552 DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", 1553 EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); 1554 error = tsleep(&sc->sc_async_head, PZERO, "ehcidi", hz); /* bell wait */ 1555 DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", 1556 EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); 1557 splx(s); 1558 mutex_exit(&sc->sc_doorbell_lock); /* release doorbell */ 1559 #ifdef DIAGNOSTIC 1560 if (error) 1561 printf("ehci_sync_hc: tsleep() = %d\n", error); 1562 #endif 1563 DPRINTFN(2,("ehci_sync_hc: exit\n")); 1564 } 1565 1566 /***********/ 1567 1568 /* 1569 * Data structures and routines to emulate the root hub. 1570 */ 1571 Static usb_device_descriptor_t ehci_devd = { 1572 USB_DEVICE_DESCRIPTOR_SIZE, 1573 UDESC_DEVICE, /* type */ 1574 {0x00, 0x02}, /* USB version */ 1575 UDCLASS_HUB, /* class */ 1576 UDSUBCLASS_HUB, /* subclass */ 1577 UDPROTO_HSHUBSTT, /* protocol */ 1578 64, /* max packet */ 1579 {0},{0},{0x00,0x01}, /* device id */ 1580 1,2,0, /* string indicies */ 1581 1 /* # of configurations */ 1582 }; 1583 1584 Static const usb_device_qualifier_t ehci_odevd = { 1585 USB_DEVICE_DESCRIPTOR_SIZE, 1586 UDESC_DEVICE_QUALIFIER, /* type */ 1587 {0x00, 0x02}, /* USB version */ 1588 UDCLASS_HUB, /* class */ 1589 UDSUBCLASS_HUB, /* subclass */ 1590 UDPROTO_FSHUB, /* protocol */ 1591 64, /* max packet */ 1592 1, /* # of configurations */ 1593 0 1594 }; 1595 1596 Static const usb_config_descriptor_t ehci_confd = { 1597 USB_CONFIG_DESCRIPTOR_SIZE, 1598 UDESC_CONFIG, 1599 {USB_CONFIG_DESCRIPTOR_SIZE + 1600 USB_INTERFACE_DESCRIPTOR_SIZE + 1601 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1602 1, 1603 1, 1604 0, 1605 UC_ATTR_MBO | UC_SELF_POWERED, 1606 0 /* max power */ 1607 }; 1608 1609 Static const usb_interface_descriptor_t ehci_ifcd = { 1610 USB_INTERFACE_DESCRIPTOR_SIZE, 1611 UDESC_INTERFACE, 1612 0, 1613 0, 1614 1, 1615 UICLASS_HUB, 1616 UISUBCLASS_HUB, 1617 UIPROTO_HSHUBSTT, 1618 0 1619 }; 1620 1621 Static const usb_endpoint_descriptor_t ehci_endpd = { 1622 USB_ENDPOINT_DESCRIPTOR_SIZE, 1623 UDESC_ENDPOINT, 1624 UE_DIR_IN | EHCI_INTR_ENDPT, 1625 UE_INTERRUPT, 1626 {8, 0}, /* max packet */ 1627 12 1628 }; 1629 1630 Static const usb_hub_descriptor_t ehci_hubd = { 1631 USB_HUB_DESCRIPTOR_SIZE, 1632 UDESC_HUB, 1633 0, 1634 {0,0}, 1635 0, 1636 0, 1637 {""}, 1638 {""}, 1639 }; 1640 1641 /* 1642 * Simulate a hardware hub by handling all the necessary requests. 1643 */ 1644 Static usbd_status 1645 ehci_root_ctrl_transfer(usbd_xfer_handle xfer) 1646 { 1647 usbd_status err; 1648 1649 /* Insert last in queue. */ 1650 err = usb_insert_transfer(xfer); 1651 if (err) 1652 return (err); 1653 1654 /* Pipe isn't running, start first */ 1655 return (ehci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1656 } 1657 1658 Static usbd_status 1659 ehci_root_ctrl_start(usbd_xfer_handle xfer) 1660 { 1661 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 1662 usb_device_request_t *req; 1663 void *buf = NULL; 1664 int port, i; 1665 int s, len, value, index, l, totlen = 0; 1666 usb_port_status_t ps; 1667 usb_hub_descriptor_t hubd; 1668 usbd_status err; 1669 u_int32_t v; 1670 1671 if (sc->sc_dying) 1672 return (USBD_IOERROR); 1673 1674 #ifdef DIAGNOSTIC 1675 if (!(xfer->rqflags & URQ_REQUEST)) 1676 /* XXX panic */ 1677 return (USBD_INVAL); 1678 #endif 1679 req = &xfer->request; 1680 1681 DPRINTFN(4,("ehci_root_ctrl_start: type=0x%02x request=%02x\n", 1682 req->bmRequestType, req->bRequest)); 1683 1684 len = UGETW(req->wLength); 1685 value = UGETW(req->wValue); 1686 index = UGETW(req->wIndex); 1687 1688 if (len != 0) 1689 buf = KERNADDR(&xfer->dmabuf, 0); 1690 1691 #define C(x,y) ((x) | ((y) << 8)) 1692 switch(C(req->bRequest, req->bmRequestType)) { 1693 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1694 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1695 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1696 /* 1697 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1698 * for the integrated root hub. 1699 */ 1700 break; 1701 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1702 if (len > 0) { 1703 *(u_int8_t *)buf = sc->sc_conf; 1704 totlen = 1; 1705 } 1706 break; 1707 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1708 DPRINTFN(8,("ehci_root_ctrl_start: wValue=0x%04x\n", value)); 1709 if (len == 0) 1710 break; 1711 switch(value >> 8) { 1712 case UDESC_DEVICE: 1713 if ((value & 0xff) != 0) { 1714 err = USBD_IOERROR; 1715 goto ret; 1716 } 1717 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1718 USETW(ehci_devd.idVendor, sc->sc_id_vendor); 1719 memcpy(buf, &ehci_devd, l); 1720 break; 1721 /* 1722 * We can't really operate at another speed, but the spec says 1723 * we need this descriptor. 1724 */ 1725 case UDESC_DEVICE_QUALIFIER: 1726 if ((value & 0xff) != 0) { 1727 err = USBD_IOERROR; 1728 goto ret; 1729 } 1730 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1731 memcpy(buf, &ehci_odevd, l); 1732 break; 1733 /* 1734 * We can't really operate at another speed, but the spec says 1735 * we need this descriptor. 1736 */ 1737 case UDESC_OTHER_SPEED_CONFIGURATION: 1738 case UDESC_CONFIG: 1739 if ((value & 0xff) != 0) { 1740 err = USBD_IOERROR; 1741 goto ret; 1742 } 1743 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 1744 memcpy(buf, &ehci_confd, l); 1745 ((usb_config_descriptor_t *)buf)->bDescriptorType = 1746 value >> 8; 1747 buf = (char *)buf + l; 1748 len -= l; 1749 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 1750 totlen += l; 1751 memcpy(buf, &ehci_ifcd, l); 1752 buf = (char *)buf + l; 1753 len -= l; 1754 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 1755 totlen += l; 1756 memcpy(buf, &ehci_endpd, l); 1757 break; 1758 case UDESC_STRING: 1759 #define sd ((usb_string_descriptor_t *)buf) 1760 switch (value & 0xff) { 1761 case 0: /* Language table */ 1762 totlen = usb_makelangtbl(sd, len); 1763 break; 1764 case 1: /* Vendor */ 1765 totlen = usb_makestrdesc(sd, len, 1766 sc->sc_vendor); 1767 break; 1768 case 2: /* Product */ 1769 totlen = usb_makestrdesc(sd, len, 1770 "EHCI root hub"); 1771 break; 1772 } 1773 #undef sd 1774 break; 1775 default: 1776 err = USBD_IOERROR; 1777 goto ret; 1778 } 1779 break; 1780 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 1781 if (len > 0) { 1782 *(u_int8_t *)buf = 0; 1783 totlen = 1; 1784 } 1785 break; 1786 case C(UR_GET_STATUS, UT_READ_DEVICE): 1787 if (len > 1) { 1788 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 1789 totlen = 2; 1790 } 1791 break; 1792 case C(UR_GET_STATUS, UT_READ_INTERFACE): 1793 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 1794 if (len > 1) { 1795 USETW(((usb_status_t *)buf)->wStatus, 0); 1796 totlen = 2; 1797 } 1798 break; 1799 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 1800 if (value >= USB_MAX_DEVICES) { 1801 err = USBD_IOERROR; 1802 goto ret; 1803 } 1804 sc->sc_addr = value; 1805 break; 1806 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 1807 if (value != 0 && value != 1) { 1808 err = USBD_IOERROR; 1809 goto ret; 1810 } 1811 sc->sc_conf = value; 1812 break; 1813 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 1814 break; 1815 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 1816 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 1817 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 1818 err = USBD_IOERROR; 1819 goto ret; 1820 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 1821 break; 1822 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 1823 break; 1824 /* Hub requests */ 1825 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 1826 break; 1827 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 1828 DPRINTFN(4, ("ehci_root_ctrl_start: UR_CLEAR_PORT_FEATURE " 1829 "port=%d feature=%d\n", 1830 index, value)); 1831 if (index < 1 || index > sc->sc_noport) { 1832 err = USBD_IOERROR; 1833 goto ret; 1834 } 1835 port = EHCI_PORTSC(index); 1836 v = EOREAD4(sc, port); 1837 DPRINTFN(4, ("ehci_root_ctrl_start: portsc=0x%08x\n", v)); 1838 v &= ~EHCI_PS_CLEAR; 1839 switch(value) { 1840 case UHF_PORT_ENABLE: 1841 EOWRITE4(sc, port, v &~ EHCI_PS_PE); 1842 break; 1843 case UHF_PORT_SUSPEND: 1844 EOWRITE4(sc, port, v &~ EHCI_PS_SUSP); 1845 break; 1846 case UHF_PORT_POWER: 1847 if (sc->sc_hasppc) 1848 EOWRITE4(sc, port, v &~ EHCI_PS_PP); 1849 break; 1850 case UHF_PORT_TEST: 1851 DPRINTFN(2,("ehci_root_ctrl_start: clear port test " 1852 "%d\n", index)); 1853 break; 1854 case UHF_PORT_INDICATOR: 1855 DPRINTFN(2,("ehci_root_ctrl_start: clear port ind " 1856 "%d\n", index)); 1857 EOWRITE4(sc, port, v &~ EHCI_PS_PIC); 1858 break; 1859 case UHF_C_PORT_CONNECTION: 1860 EOWRITE4(sc, port, v | EHCI_PS_CSC); 1861 break; 1862 case UHF_C_PORT_ENABLE: 1863 EOWRITE4(sc, port, v | EHCI_PS_PEC); 1864 break; 1865 case UHF_C_PORT_SUSPEND: 1866 /* how? */ 1867 break; 1868 case UHF_C_PORT_OVER_CURRENT: 1869 EOWRITE4(sc, port, v | EHCI_PS_OCC); 1870 break; 1871 case UHF_C_PORT_RESET: 1872 sc->sc_isreset[index] = 0; 1873 break; 1874 default: 1875 err = USBD_IOERROR; 1876 goto ret; 1877 } 1878 #if 0 1879 switch(value) { 1880 case UHF_C_PORT_CONNECTION: 1881 case UHF_C_PORT_ENABLE: 1882 case UHF_C_PORT_SUSPEND: 1883 case UHF_C_PORT_OVER_CURRENT: 1884 case UHF_C_PORT_RESET: 1885 default: 1886 break; 1887 } 1888 #endif 1889 break; 1890 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 1891 if (len == 0) 1892 break; 1893 if ((value & 0xff) != 0) { 1894 err = USBD_IOERROR; 1895 goto ret; 1896 } 1897 hubd = ehci_hubd; 1898 hubd.bNbrPorts = sc->sc_noport; 1899 v = EOREAD4(sc, EHCI_HCSPARAMS); 1900 USETW(hubd.wHubCharacteristics, 1901 EHCI_HCS_PPC(v) ? UHD_PWR_INDIVIDUAL : UHD_PWR_NO_SWITCH | 1902 EHCI_HCS_P_INDICATOR(EREAD4(sc, EHCI_HCSPARAMS)) 1903 ? UHD_PORT_IND : 0); 1904 hubd.bPwrOn2PwrGood = 200; /* XXX can't find out? */ 1905 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 1906 hubd.DeviceRemovable[i++] = 0; /* XXX can't find out? */ 1907 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 1908 l = min(len, hubd.bDescLength); 1909 totlen = l; 1910 memcpy(buf, &hubd, l); 1911 break; 1912 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 1913 if (len != 4) { 1914 err = USBD_IOERROR; 1915 goto ret; 1916 } 1917 memset(buf, 0, len); /* ? XXX */ 1918 totlen = len; 1919 break; 1920 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 1921 DPRINTFN(8,("ehci_root_ctrl_start: get port status i=%d\n", 1922 index)); 1923 if (index < 1 || index > sc->sc_noport) { 1924 err = USBD_IOERROR; 1925 goto ret; 1926 } 1927 if (len != 4) { 1928 err = USBD_IOERROR; 1929 goto ret; 1930 } 1931 v = EOREAD4(sc, EHCI_PORTSC(index)); 1932 DPRINTFN(8,("ehci_root_ctrl_start: port status=0x%04x\n", 1933 v)); 1934 i = UPS_HIGH_SPEED; 1935 if (v & EHCI_PS_CS) i |= UPS_CURRENT_CONNECT_STATUS; 1936 if (v & EHCI_PS_PE) i |= UPS_PORT_ENABLED; 1937 if (v & EHCI_PS_SUSP) i |= UPS_SUSPEND; 1938 if (v & EHCI_PS_OCA) i |= UPS_OVERCURRENT_INDICATOR; 1939 if (v & EHCI_PS_PR) i |= UPS_RESET; 1940 if (v & EHCI_PS_PP) i |= UPS_PORT_POWER; 1941 USETW(ps.wPortStatus, i); 1942 i = 0; 1943 if (v & EHCI_PS_CSC) i |= UPS_C_CONNECT_STATUS; 1944 if (v & EHCI_PS_PEC) i |= UPS_C_PORT_ENABLED; 1945 if (v & EHCI_PS_OCC) i |= UPS_C_OVERCURRENT_INDICATOR; 1946 if (sc->sc_isreset[index]) i |= UPS_C_PORT_RESET; 1947 USETW(ps.wPortChange, i); 1948 l = min(len, sizeof ps); 1949 memcpy(buf, &ps, l); 1950 totlen = l; 1951 break; 1952 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 1953 err = USBD_IOERROR; 1954 goto ret; 1955 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 1956 break; 1957 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 1958 if (index < 1 || index > sc->sc_noport) { 1959 err = USBD_IOERROR; 1960 goto ret; 1961 } 1962 port = EHCI_PORTSC(index); 1963 v = EOREAD4(sc, port); 1964 DPRINTFN(4, ("ehci_root_ctrl_start: portsc=0x%08x\n", v)); 1965 v &= ~EHCI_PS_CLEAR; 1966 switch(value) { 1967 case UHF_PORT_ENABLE: 1968 EOWRITE4(sc, port, v | EHCI_PS_PE); 1969 break; 1970 case UHF_PORT_SUSPEND: 1971 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 1972 break; 1973 case UHF_PORT_RESET: 1974 DPRINTFN(5,("ehci_root_ctrl_start: reset port %d\n", 1975 index)); 1976 if (EHCI_PS_IS_LOWSPEED(v)) { 1977 /* Low speed device, give up ownership. */ 1978 ehci_disown(sc, index, 1); 1979 break; 1980 } 1981 /* Start reset sequence. */ 1982 v &= ~ (EHCI_PS_PE | EHCI_PS_PR); 1983 EOWRITE4(sc, port, v | EHCI_PS_PR); 1984 /* Wait for reset to complete. */ 1985 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 1986 if (sc->sc_dying) { 1987 err = USBD_IOERROR; 1988 goto ret; 1989 } 1990 /* Terminate reset sequence. */ 1991 EOWRITE4(sc, port, v); 1992 /* Wait for HC to complete reset. */ 1993 usb_delay_ms(&sc->sc_bus, EHCI_PORT_RESET_COMPLETE); 1994 if (sc->sc_dying) { 1995 err = USBD_IOERROR; 1996 goto ret; 1997 } 1998 v = EOREAD4(sc, port); 1999 DPRINTF(("ehci after reset, status=0x%08x\n", v)); 2000 if (v & EHCI_PS_PR) { 2001 printf("%s: port reset timeout\n", 2002 USBDEVNAME(sc->sc_bus.bdev)); 2003 return (USBD_TIMEOUT); 2004 } 2005 if (!(v & EHCI_PS_PE)) { 2006 /* Not a high speed device, give up ownership.*/ 2007 ehci_disown(sc, index, 0); 2008 break; 2009 } 2010 sc->sc_isreset[index] = 1; 2011 DPRINTF(("ehci port %d reset, status = 0x%08x\n", 2012 index, v)); 2013 break; 2014 case UHF_PORT_POWER: 2015 DPRINTFN(2,("ehci_root_ctrl_start: set port power " 2016 "%d (has PPC = %d)\n", index, 2017 sc->sc_hasppc)); 2018 if (sc->sc_hasppc) 2019 EOWRITE4(sc, port, v | EHCI_PS_PP); 2020 break; 2021 case UHF_PORT_TEST: 2022 DPRINTFN(2,("ehci_root_ctrl_start: set port test " 2023 "%d\n", index)); 2024 break; 2025 case UHF_PORT_INDICATOR: 2026 DPRINTFN(2,("ehci_root_ctrl_start: set port ind " 2027 "%d\n", index)); 2028 EOWRITE4(sc, port, v | EHCI_PS_PIC); 2029 break; 2030 default: 2031 err = USBD_IOERROR; 2032 goto ret; 2033 } 2034 break; 2035 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): 2036 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): 2037 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): 2038 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 2039 break; 2040 default: 2041 err = USBD_IOERROR; 2042 goto ret; 2043 } 2044 xfer->actlen = totlen; 2045 err = USBD_NORMAL_COMPLETION; 2046 ret: 2047 xfer->status = err; 2048 s = splusb(); 2049 usb_transfer_complete(xfer); 2050 splx(s); 2051 return (USBD_IN_PROGRESS); 2052 } 2053 2054 void 2055 ehci_disown(ehci_softc_t *sc, int index, int lowspeed) 2056 { 2057 int port; 2058 u_int32_t v; 2059 2060 DPRINTF(("ehci_disown: index=%d lowspeed=%d\n", index, lowspeed)); 2061 #ifdef DIAGNOSTIC 2062 if (sc->sc_npcomp != 0) { 2063 int i = (index-1) / sc->sc_npcomp; 2064 if (i >= sc->sc_ncomp) 2065 printf("%s: strange port\n", 2066 USBDEVNAME(sc->sc_bus.bdev)); 2067 else 2068 printf("%s: handing over %s speed device on " 2069 "port %d to %s\n", 2070 USBDEVNAME(sc->sc_bus.bdev), 2071 lowspeed ? "low" : "full", 2072 index, USBDEVNAME(sc->sc_comps[i]->bdev)); 2073 } else { 2074 printf("%s: npcomp == 0\n", USBDEVNAME(sc->sc_bus.bdev)); 2075 } 2076 #endif 2077 port = EHCI_PORTSC(index); 2078 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 2079 EOWRITE4(sc, port, v | EHCI_PS_PO); 2080 } 2081 2082 /* Abort a root control request. */ 2083 Static void 2084 ehci_root_ctrl_abort(usbd_xfer_handle xfer) 2085 { 2086 /* Nothing to do, all transfers are synchronous. */ 2087 } 2088 2089 /* Close the root pipe. */ 2090 Static void 2091 ehci_root_ctrl_close(usbd_pipe_handle pipe) 2092 { 2093 DPRINTF(("ehci_root_ctrl_close\n")); 2094 /* Nothing to do. */ 2095 } 2096 2097 void 2098 ehci_root_intr_done(usbd_xfer_handle xfer) 2099 { 2100 xfer->hcpriv = NULL; 2101 } 2102 2103 Static usbd_status 2104 ehci_root_intr_transfer(usbd_xfer_handle xfer) 2105 { 2106 usbd_status err; 2107 2108 /* Insert last in queue. */ 2109 err = usb_insert_transfer(xfer); 2110 if (err) 2111 return (err); 2112 2113 /* Pipe isn't running, start first */ 2114 return (ehci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2115 } 2116 2117 Static usbd_status 2118 ehci_root_intr_start(usbd_xfer_handle xfer) 2119 { 2120 usbd_pipe_handle pipe = xfer->pipe; 2121 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2122 2123 if (sc->sc_dying) 2124 return (USBD_IOERROR); 2125 2126 sc->sc_intrxfer = xfer; 2127 2128 return (USBD_IN_PROGRESS); 2129 } 2130 2131 /* Abort a root interrupt request. */ 2132 Static void 2133 ehci_root_intr_abort(usbd_xfer_handle xfer) 2134 { 2135 int s; 2136 2137 if (xfer->pipe->intrxfer == xfer) { 2138 DPRINTF(("ehci_root_intr_abort: remove\n")); 2139 xfer->pipe->intrxfer = NULL; 2140 } 2141 xfer->status = USBD_CANCELLED; 2142 s = splusb(); 2143 usb_transfer_complete(xfer); 2144 splx(s); 2145 } 2146 2147 /* Close the root pipe. */ 2148 Static void 2149 ehci_root_intr_close(usbd_pipe_handle pipe) 2150 { 2151 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2152 2153 DPRINTF(("ehci_root_intr_close\n")); 2154 2155 sc->sc_intrxfer = NULL; 2156 } 2157 2158 void 2159 ehci_root_ctrl_done(usbd_xfer_handle xfer) 2160 { 2161 xfer->hcpriv = NULL; 2162 } 2163 2164 /************************/ 2165 2166 ehci_soft_qh_t * 2167 ehci_alloc_sqh(ehci_softc_t *sc) 2168 { 2169 ehci_soft_qh_t *sqh; 2170 usbd_status err; 2171 int i, offs; 2172 usb_dma_t dma; 2173 2174 if (sc->sc_freeqhs == NULL) { 2175 DPRINTFN(2, ("ehci_alloc_sqh: allocating chunk\n")); 2176 err = usb_allocmem(&sc->sc_bus, EHCI_SQH_SIZE * EHCI_SQH_CHUNK, 2177 EHCI_PAGE_SIZE, &dma); 2178 #ifdef EHCI_DEBUG 2179 if (err) 2180 printf("ehci_alloc_sqh: usb_allocmem()=%d\n", err); 2181 #endif 2182 if (err) 2183 return (NULL); 2184 for(i = 0; i < EHCI_SQH_CHUNK; i++) { 2185 offs = i * EHCI_SQH_SIZE; 2186 sqh = KERNADDR(&dma, offs); 2187 sqh->physaddr = DMAADDR(&dma, offs); 2188 sqh->next = sc->sc_freeqhs; 2189 sc->sc_freeqhs = sqh; 2190 } 2191 } 2192 sqh = sc->sc_freeqhs; 2193 sc->sc_freeqhs = sqh->next; 2194 memset(&sqh->qh, 0, sizeof(ehci_qh_t)); 2195 sqh->next = NULL; 2196 return (sqh); 2197 } 2198 2199 void 2200 ehci_free_sqh(ehci_softc_t *sc, ehci_soft_qh_t *sqh) 2201 { 2202 sqh->next = sc->sc_freeqhs; 2203 sc->sc_freeqhs = sqh; 2204 } 2205 2206 ehci_soft_qtd_t * 2207 ehci_alloc_sqtd(ehci_softc_t *sc) 2208 { 2209 ehci_soft_qtd_t *sqtd; 2210 usbd_status err; 2211 int i, offs; 2212 usb_dma_t dma; 2213 int s; 2214 2215 if (sc->sc_freeqtds == NULL) { 2216 DPRINTFN(2, ("ehci_alloc_sqtd: allocating chunk\n")); 2217 err = usb_allocmem(&sc->sc_bus, EHCI_SQTD_SIZE*EHCI_SQTD_CHUNK, 2218 EHCI_PAGE_SIZE, &dma); 2219 #ifdef EHCI_DEBUG 2220 if (err) 2221 printf("ehci_alloc_sqtd: usb_allocmem()=%d\n", err); 2222 #endif 2223 if (err) 2224 return (NULL); 2225 s = splusb(); 2226 for(i = 0; i < EHCI_SQTD_CHUNK; i++) { 2227 offs = i * EHCI_SQTD_SIZE; 2228 sqtd = KERNADDR(&dma, offs); 2229 sqtd->physaddr = DMAADDR(&dma, offs); 2230 sqtd->nextqtd = sc->sc_freeqtds; 2231 sc->sc_freeqtds = sqtd; 2232 } 2233 splx(s); 2234 } 2235 2236 s = splusb(); 2237 sqtd = sc->sc_freeqtds; 2238 sc->sc_freeqtds = sqtd->nextqtd; 2239 memset(&sqtd->qtd, 0, sizeof(ehci_qtd_t)); 2240 sqtd->nextqtd = NULL; 2241 sqtd->xfer = NULL; 2242 splx(s); 2243 2244 return (sqtd); 2245 } 2246 2247 void 2248 ehci_free_sqtd(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd) 2249 { 2250 int s; 2251 2252 s = splusb(); 2253 sqtd->nextqtd = sc->sc_freeqtds; 2254 sc->sc_freeqtds = sqtd; 2255 splx(s); 2256 } 2257 2258 usbd_status 2259 ehci_alloc_sqtd_chain(struct ehci_pipe *epipe, ehci_softc_t *sc, 2260 int alen, int rd, usbd_xfer_handle xfer, 2261 ehci_soft_qtd_t **sp, ehci_soft_qtd_t **ep) 2262 { 2263 ehci_soft_qtd_t *next, *cur; 2264 ehci_physaddr_t dataphys, dataphyspage, dataphyslastpage, nextphys; 2265 u_int32_t qtdstatus; 2266 int len, curlen, mps; 2267 int i, tog; 2268 usb_dma_t *dma = &xfer->dmabuf; 2269 u_int16_t flags = xfer->flags; 2270 2271 DPRINTFN(alen<4*4096,("ehci_alloc_sqtd_chain: start len=%d\n", alen)); 2272 2273 len = alen; 2274 dataphys = DMAADDR(dma, 0); 2275 dataphyslastpage = EHCI_PAGE(dataphys + len - 1); 2276 qtdstatus = EHCI_QTD_ACTIVE | 2277 EHCI_QTD_SET_PID(rd ? EHCI_QTD_PID_IN : EHCI_QTD_PID_OUT) | 2278 EHCI_QTD_SET_CERR(3) 2279 /* IOC set below */ 2280 /* BYTES set below */ 2281 ; 2282 mps = UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize); 2283 tog = epipe->nexttoggle; 2284 qtdstatus |= EHCI_QTD_SET_TOGGLE(tog); 2285 2286 cur = ehci_alloc_sqtd(sc); 2287 *sp = cur; 2288 if (cur == NULL) 2289 goto nomem; 2290 for (;;) { 2291 dataphyspage = EHCI_PAGE(dataphys); 2292 /* The EHCI hardware can handle at most 5 pages. */ 2293 if (dataphyslastpage - dataphyspage < 2294 EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE) { 2295 /* we can handle it in this QTD */ 2296 curlen = len; 2297 } else { 2298 /* must use multiple TDs, fill as much as possible. */ 2299 curlen = EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE - 2300 EHCI_PAGE_OFFSET(dataphys); 2301 #ifdef DIAGNOSTIC 2302 if (curlen > len) { 2303 printf("ehci_alloc_sqtd_chain: curlen=0x%x " 2304 "len=0x%x offs=0x%x\n", curlen, len, 2305 EHCI_PAGE_OFFSET(dataphys)); 2306 printf("lastpage=0x%x page=0x%x phys=0x%x\n", 2307 dataphyslastpage, dataphyspage, 2308 dataphys); 2309 curlen = len; 2310 } 2311 #endif 2312 /* the length must be a multiple of the max size */ 2313 curlen -= curlen % mps; 2314 DPRINTFN(1,("ehci_alloc_sqtd_chain: multiple QTDs, " 2315 "curlen=%d\n", curlen)); 2316 #ifdef DIAGNOSTIC 2317 if (curlen == 0) 2318 panic("ehci_alloc_sqtd_chain: curlen == 0"); 2319 #endif 2320 } 2321 DPRINTFN(4,("ehci_alloc_sqtd_chain: dataphys=0x%08x " 2322 "dataphyslastpage=0x%08x len=%d curlen=%d\n", 2323 dataphys, dataphyslastpage, 2324 len, curlen)); 2325 len -= curlen; 2326 2327 /* 2328 * Allocate another transfer if there's more data left, 2329 * or if force last short transfer flag is set and we're 2330 * allocating a multiple of the max packet size. 2331 */ 2332 if (len != 0 || 2333 ((curlen % mps) == 0 && !rd && curlen != 0 && 2334 (flags & USBD_FORCE_SHORT_XFER))) { 2335 next = ehci_alloc_sqtd(sc); 2336 if (next == NULL) 2337 goto nomem; 2338 nextphys = htole32(next->physaddr); 2339 } else { 2340 next = NULL; 2341 nextphys = EHCI_NULL; 2342 } 2343 2344 for (i = 0; i * EHCI_PAGE_SIZE < 2345 curlen + EHCI_PAGE_OFFSET(dataphys); i++) { 2346 ehci_physaddr_t a = dataphys + i * EHCI_PAGE_SIZE; 2347 if (i != 0) /* use offset only in first buffer */ 2348 a = EHCI_PAGE(a); 2349 cur->qtd.qtd_buffer[i] = htole32(a); 2350 cur->qtd.qtd_buffer_hi[i] = 0; 2351 #ifdef DIAGNOSTIC 2352 if (i >= EHCI_QTD_NBUFFERS) { 2353 printf("ehci_alloc_sqtd_chain: i=%d\n", i); 2354 goto nomem; 2355 } 2356 #endif 2357 } 2358 cur->nextqtd = next; 2359 cur->qtd.qtd_next = cur->qtd.qtd_altnext = nextphys; 2360 cur->qtd.qtd_status = 2361 htole32(qtdstatus | EHCI_QTD_SET_BYTES(curlen)); 2362 cur->xfer = xfer; 2363 cur->len = curlen; 2364 DPRINTFN(10,("ehci_alloc_sqtd_chain: cbp=0x%08x end=0x%08x\n", 2365 dataphys, dataphys + curlen)); 2366 /* adjust the toggle based on the number of packets in this 2367 qtd */ 2368 if (((curlen + mps - 1) / mps) & 1) { 2369 tog ^= 1; 2370 qtdstatus ^= EHCI_QTD_TOGGLE_MASK; 2371 } 2372 if (next == NULL) 2373 break; 2374 DPRINTFN(10,("ehci_alloc_sqtd_chain: extend chain\n")); 2375 dataphys += curlen; 2376 cur = next; 2377 } 2378 cur->qtd.qtd_status |= htole32(EHCI_QTD_IOC); 2379 *ep = cur; 2380 epipe->nexttoggle = tog; 2381 2382 DPRINTFN(10,("ehci_alloc_sqtd_chain: return sqtd=%p sqtdend=%p\n", 2383 *sp, *ep)); 2384 2385 return (USBD_NORMAL_COMPLETION); 2386 2387 nomem: 2388 /* XXX free chain */ 2389 DPRINTFN(-1,("ehci_alloc_sqtd_chain: no memory\n")); 2390 return (USBD_NOMEM); 2391 } 2392 2393 Static void 2394 ehci_free_sqtd_chain(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd, 2395 ehci_soft_qtd_t *sqtdend) 2396 { 2397 ehci_soft_qtd_t *p; 2398 int i; 2399 2400 DPRINTFN(10,("ehci_free_sqtd_chain: sqtd=%p sqtdend=%p\n", 2401 sqtd, sqtdend)); 2402 2403 for (i = 0; sqtd != sqtdend; sqtd = p, i++) { 2404 p = sqtd->nextqtd; 2405 ehci_free_sqtd(sc, sqtd); 2406 } 2407 } 2408 2409 /****************/ 2410 2411 /* 2412 * Close a reqular pipe. 2413 * Assumes that there are no pending transactions. 2414 */ 2415 void 2416 ehci_close_pipe(usbd_pipe_handle pipe, ehci_soft_qh_t *head) 2417 { 2418 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 2419 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2420 ehci_soft_qh_t *sqh = epipe->sqh; 2421 int s; 2422 2423 s = splusb(); 2424 ehci_rem_qh(sc, sqh, head); 2425 splx(s); 2426 ehci_free_sqh(sc, epipe->sqh); 2427 } 2428 2429 /* 2430 * Abort a device request. 2431 * If this routine is called at splusb() it guarantees that the request 2432 * will be removed from the hardware scheduling and that the callback 2433 * for it will be called with USBD_CANCELLED status. 2434 * It's impossible to guarantee that the requested transfer will not 2435 * have happened since the hardware runs concurrently. 2436 * If the transaction has already happened we rely on the ordinary 2437 * interrupt processing to process it. 2438 * XXX This is most probably wrong. 2439 */ 2440 void 2441 ehci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2442 { 2443 #define exfer EXFER(xfer) 2444 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2445 ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; 2446 ehci_soft_qh_t *sqh = epipe->sqh; 2447 ehci_soft_qtd_t *sqtd; 2448 ehci_physaddr_t cur; 2449 u_int32_t qhstatus; 2450 int s; 2451 int hit; 2452 int wake; 2453 2454 DPRINTF(("ehci_abort_xfer: xfer=%p pipe=%p\n", xfer, epipe)); 2455 2456 if (sc->sc_dying) { 2457 /* If we're dying, just do the software part. */ 2458 s = splusb(); 2459 xfer->status = status; /* make software ignore it */ 2460 usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); 2461 usb_transfer_complete(xfer); 2462 splx(s); 2463 return; 2464 } 2465 2466 if (xfer->device->bus->intr_context || !curproc) 2467 panic("ehci_abort_xfer: not in process context"); 2468 2469 /* 2470 * If an abort is already in progress then just wait for it to 2471 * complete and return. 2472 */ 2473 if (xfer->hcflags & UXFER_ABORTING) { 2474 DPRINTFN(2, ("ehci_abort_xfer: already aborting\n")); 2475 #ifdef DIAGNOSTIC 2476 if (status == USBD_TIMEOUT) 2477 printf("ehci_abort_xfer: TIMEOUT while aborting\n"); 2478 #endif 2479 /* Override the status which might be USBD_TIMEOUT. */ 2480 xfer->status = status; 2481 DPRINTFN(2, ("ehci_abort_xfer: waiting for abort to finish\n")); 2482 xfer->hcflags |= UXFER_ABORTWAIT; 2483 while (xfer->hcflags & UXFER_ABORTING) 2484 tsleep(&xfer->hcflags, PZERO, "ehciaw", 0); 2485 return; 2486 } 2487 xfer->hcflags |= UXFER_ABORTING; 2488 2489 /* 2490 * Step 1: Make interrupt routine and hardware ignore xfer. 2491 */ 2492 s = splusb(); 2493 xfer->status = status; /* make software ignore it */ 2494 usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); 2495 qhstatus = sqh->qh.qh_qtd.qtd_status; 2496 sqh->qh.qh_qtd.qtd_status = qhstatus | htole32(EHCI_QTD_HALTED); 2497 for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) { 2498 sqtd->qtd.qtd_status |= htole32(EHCI_QTD_HALTED); 2499 if (sqtd == exfer->sqtdend) 2500 break; 2501 } 2502 splx(s); 2503 2504 /* 2505 * Step 2: Wait until we know hardware has finished any possible 2506 * use of the xfer. Also make sure the soft interrupt routine 2507 * has run. 2508 */ 2509 ehci_sync_hc(sc); 2510 s = splusb(); 2511 #ifdef USB_USE_SOFTINTR 2512 sc->sc_softwake = 1; 2513 #endif /* USB_USE_SOFTINTR */ 2514 usb_schedsoftintr(&sc->sc_bus); 2515 #ifdef USB_USE_SOFTINTR 2516 tsleep(&sc->sc_softwake, PZERO, "ehciab", 0); 2517 #endif /* USB_USE_SOFTINTR */ 2518 splx(s); 2519 2520 /* 2521 * Step 3: Remove any vestiges of the xfer from the hardware. 2522 * The complication here is that the hardware may have executed 2523 * beyond the xfer we're trying to abort. So as we're scanning 2524 * the TDs of this xfer we check if the hardware points to 2525 * any of them. 2526 */ 2527 s = splusb(); /* XXX why? */ 2528 cur = EHCI_LINK_ADDR(le32toh(sqh->qh.qh_curqtd)); 2529 hit = 0; 2530 for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) { 2531 hit |= cur == sqtd->physaddr; 2532 if (sqtd == exfer->sqtdend) 2533 break; 2534 } 2535 sqtd = sqtd->nextqtd; 2536 /* Zap curqtd register if hardware pointed inside the xfer. */ 2537 if (hit && sqtd != NULL) { 2538 DPRINTFN(1,("ehci_abort_xfer: cur=0x%08x\n", sqtd->physaddr)); 2539 sqh->qh.qh_curqtd = htole32(sqtd->physaddr); /* unlink qTDs */ 2540 sqh->qh.qh_qtd.qtd_status = qhstatus; 2541 } else { 2542 DPRINTFN(1,("ehci_abort_xfer: no hit\n")); 2543 } 2544 2545 /* 2546 * Step 4: Execute callback. 2547 */ 2548 #ifdef DIAGNOSTIC 2549 exfer->isdone = 1; 2550 #endif 2551 wake = xfer->hcflags & UXFER_ABORTWAIT; 2552 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2553 usb_transfer_complete(xfer); 2554 if (wake) 2555 wakeup(&xfer->hcflags); 2556 2557 splx(s); 2558 #undef exfer 2559 } 2560 2561 void 2562 ehci_timeout(void *addr) 2563 { 2564 struct ehci_xfer *exfer = addr; 2565 struct ehci_pipe *epipe = (struct ehci_pipe *)exfer->xfer.pipe; 2566 ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; 2567 2568 DPRINTF(("ehci_timeout: exfer=%p\n", exfer)); 2569 #ifdef USB_DEBUG 2570 if (ehcidebug > 1) 2571 usbd_dump_pipe(exfer->xfer.pipe); 2572 #endif 2573 2574 if (sc->sc_dying) { 2575 ehci_abort_xfer(&exfer->xfer, USBD_TIMEOUT); 2576 return; 2577 } 2578 2579 /* Execute the abort in a process context. */ 2580 usb_init_task(&exfer->abort_task, ehci_timeout_task, addr); 2581 usb_add_task(exfer->xfer.pipe->device, &exfer->abort_task, 2582 USB_TASKQ_HC); 2583 } 2584 2585 void 2586 ehci_timeout_task(void *addr) 2587 { 2588 usbd_xfer_handle xfer = addr; 2589 int s; 2590 2591 DPRINTF(("ehci_timeout_task: xfer=%p\n", xfer)); 2592 2593 s = splusb(); 2594 ehci_abort_xfer(xfer, USBD_TIMEOUT); 2595 splx(s); 2596 } 2597 2598 /************************/ 2599 2600 Static usbd_status 2601 ehci_device_ctrl_transfer(usbd_xfer_handle xfer) 2602 { 2603 usbd_status err; 2604 2605 /* Insert last in queue. */ 2606 err = usb_insert_transfer(xfer); 2607 if (err) 2608 return (err); 2609 2610 /* Pipe isn't running, start first */ 2611 return (ehci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2612 } 2613 2614 Static usbd_status 2615 ehci_device_ctrl_start(usbd_xfer_handle xfer) 2616 { 2617 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2618 usbd_status err; 2619 2620 if (sc->sc_dying) 2621 return (USBD_IOERROR); 2622 2623 #ifdef DIAGNOSTIC 2624 if (!(xfer->rqflags & URQ_REQUEST)) { 2625 /* XXX panic */ 2626 printf("ehci_device_ctrl_transfer: not a request\n"); 2627 return (USBD_INVAL); 2628 } 2629 #endif 2630 2631 err = ehci_device_request(xfer); 2632 if (err) 2633 return (err); 2634 2635 if (sc->sc_bus.use_polling) 2636 ehci_waitintr(sc, xfer); 2637 return (USBD_IN_PROGRESS); 2638 } 2639 2640 void 2641 ehci_device_ctrl_done(usbd_xfer_handle xfer) 2642 { 2643 struct ehci_xfer *ex = EXFER(xfer); 2644 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2645 /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ 2646 2647 DPRINTFN(10,("ehci_ctrl_done: xfer=%p\n", xfer)); 2648 2649 #ifdef DIAGNOSTIC 2650 if (!(xfer->rqflags & URQ_REQUEST)) { 2651 panic("ehci_ctrl_done: not a request"); 2652 } 2653 #endif 2654 2655 if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { 2656 ehci_del_intr_list(ex); /* remove from active list */ 2657 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 2658 } 2659 2660 DPRINTFN(5, ("ehci_ctrl_done: length=%d\n", xfer->actlen)); 2661 } 2662 2663 /* Abort a device control request. */ 2664 Static void 2665 ehci_device_ctrl_abort(usbd_xfer_handle xfer) 2666 { 2667 DPRINTF(("ehci_device_ctrl_abort: xfer=%p\n", xfer)); 2668 ehci_abort_xfer(xfer, USBD_CANCELLED); 2669 } 2670 2671 /* Close a device control pipe. */ 2672 Static void 2673 ehci_device_ctrl_close(usbd_pipe_handle pipe) 2674 { 2675 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2676 /*struct ehci_pipe *epipe = (struct ehci_pipe *)pipe;*/ 2677 2678 DPRINTF(("ehci_device_ctrl_close: pipe=%p\n", pipe)); 2679 ehci_close_pipe(pipe, sc->sc_async_head); 2680 } 2681 2682 usbd_status 2683 ehci_device_request(usbd_xfer_handle xfer) 2684 { 2685 #define exfer EXFER(xfer) 2686 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2687 usb_device_request_t *req = &xfer->request; 2688 usbd_device_handle dev = epipe->pipe.device; 2689 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 2690 int addr = dev->address; 2691 ehci_soft_qtd_t *setup, *stat, *next; 2692 ehci_soft_qh_t *sqh; 2693 int isread; 2694 int len; 2695 usbd_status err; 2696 int s; 2697 2698 isread = req->bmRequestType & UT_READ; 2699 len = UGETW(req->wLength); 2700 2701 DPRINTFN(3,("ehci_device_request: type=0x%02x, request=0x%02x, " 2702 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2703 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2704 UGETW(req->wIndex), len, addr, 2705 epipe->pipe.endpoint->edesc->bEndpointAddress)); 2706 2707 setup = ehci_alloc_sqtd(sc); 2708 if (setup == NULL) { 2709 err = USBD_NOMEM; 2710 goto bad1; 2711 } 2712 stat = ehci_alloc_sqtd(sc); 2713 if (stat == NULL) { 2714 err = USBD_NOMEM; 2715 goto bad2; 2716 } 2717 2718 sqh = epipe->sqh; 2719 epipe->u.ctl.length = len; 2720 2721 /* Update device address and length since they may have changed 2722 during the setup of the control pipe in usbd_new_device(). */ 2723 /* XXX This only needs to be done once, but it's too early in open. */ 2724 /* XXXX Should not touch ED here! */ 2725 sqh->qh.qh_endp = 2726 (sqh->qh.qh_endp & htole32(~(EHCI_QH_ADDRMASK | EHCI_QH_MPLMASK))) | 2727 htole32( 2728 EHCI_QH_SET_ADDR(addr) | 2729 EHCI_QH_SET_MPL(UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize)) 2730 ); 2731 2732 /* Set up data transaction */ 2733 if (len != 0) { 2734 ehci_soft_qtd_t *end; 2735 2736 /* Start toggle at 1. */ 2737 epipe->nexttoggle = 1; 2738 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, 2739 &next, &end); 2740 if (err) 2741 goto bad3; 2742 end->qtd.qtd_status &= htole32(~EHCI_QTD_IOC); 2743 end->nextqtd = stat; 2744 end->qtd.qtd_next = 2745 end->qtd.qtd_altnext = htole32(stat->physaddr); 2746 } else { 2747 next = stat; 2748 } 2749 2750 memcpy(KERNADDR(&epipe->u.ctl.reqdma, 0), req, sizeof *req); 2751 2752 /* Clear toggle */ 2753 setup->qtd.qtd_status = htole32( 2754 EHCI_QTD_ACTIVE | 2755 EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) | 2756 EHCI_QTD_SET_CERR(3) | 2757 EHCI_QTD_SET_TOGGLE(0) | 2758 EHCI_QTD_SET_BYTES(sizeof *req) 2759 ); 2760 setup->qtd.qtd_buffer[0] = htole32(DMAADDR(&epipe->u.ctl.reqdma, 0)); 2761 setup->qtd.qtd_buffer_hi[0] = 0; 2762 setup->nextqtd = next; 2763 setup->qtd.qtd_next = setup->qtd.qtd_altnext = htole32(next->physaddr); 2764 setup->xfer = xfer; 2765 setup->len = sizeof *req; 2766 2767 stat->qtd.qtd_status = htole32( 2768 EHCI_QTD_ACTIVE | 2769 EHCI_QTD_SET_PID(isread ? EHCI_QTD_PID_OUT : EHCI_QTD_PID_IN) | 2770 EHCI_QTD_SET_CERR(3) | 2771 EHCI_QTD_SET_TOGGLE(1) | 2772 EHCI_QTD_IOC 2773 ); 2774 stat->qtd.qtd_buffer[0] = 0; /* XXX not needed? */ 2775 stat->qtd.qtd_buffer_hi[0] = 0; /* XXX not needed? */ 2776 stat->nextqtd = NULL; 2777 stat->qtd.qtd_next = stat->qtd.qtd_altnext = EHCI_NULL; 2778 stat->xfer = xfer; 2779 stat->len = 0; 2780 2781 #ifdef EHCI_DEBUG 2782 if (ehcidebug > 5) { 2783 DPRINTF(("ehci_device_request:\n")); 2784 ehci_dump_sqh(sqh); 2785 ehci_dump_sqtds(setup); 2786 } 2787 #endif 2788 2789 exfer->sqtdstart = setup; 2790 exfer->sqtdend = stat; 2791 #ifdef DIAGNOSTIC 2792 if (!exfer->isdone) { 2793 printf("ehci_device_request: not done, exfer=%p\n", exfer); 2794 } 2795 exfer->isdone = 0; 2796 #endif 2797 2798 /* Insert qTD in QH list. */ 2799 s = splusb(); 2800 ehci_set_qh_qtd(sqh, setup); 2801 if (xfer->timeout && !sc->sc_bus.use_polling) { 2802 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2803 ehci_timeout, xfer); 2804 } 2805 ehci_add_intr_list(sc, exfer); 2806 xfer->status = USBD_IN_PROGRESS; 2807 splx(s); 2808 2809 #ifdef EHCI_DEBUG 2810 if (ehcidebug > 10) { 2811 DPRINTF(("ehci_device_request: status=%x\n", 2812 EOREAD4(sc, EHCI_USBSTS))); 2813 delay(10000); 2814 ehci_dump_regs(sc); 2815 ehci_dump_sqh(sc->sc_async_head); 2816 ehci_dump_sqh(sqh); 2817 ehci_dump_sqtds(setup); 2818 } 2819 #endif 2820 2821 return (USBD_NORMAL_COMPLETION); 2822 2823 bad3: 2824 ehci_free_sqtd(sc, stat); 2825 bad2: 2826 ehci_free_sqtd(sc, setup); 2827 bad1: 2828 DPRINTFN(-1,("ehci_device_request: no memory\n")); 2829 xfer->status = err; 2830 usb_transfer_complete(xfer); 2831 return (err); 2832 #undef exfer 2833 } 2834 2835 /* 2836 * Some EHCI chips from VIA seem to trigger interrupts before writing back the 2837 * qTD status, or miss signalling occasionally under heavy load. If the host 2838 * machine is too fast, we we can miss transaction completion - when we scan 2839 * the active list the transaction still seems to be active. This generally 2840 * exhibits itself as a umass stall that never recovers. 2841 * 2842 * We work around this behaviour by setting up this callback after any softintr 2843 * that completes with transactions still pending, giving us another chance to 2844 * check for completion after the writeback has taken place. 2845 */ 2846 void 2847 ehci_intrlist_timeout(void *arg) 2848 { 2849 ehci_softc_t *sc = arg; 2850 int s = splusb(); 2851 2852 DPRINTF(("ehci_intrlist_timeout\n")); 2853 usb_schedsoftintr(&sc->sc_bus); 2854 2855 splx(s); 2856 } 2857 2858 /************************/ 2859 2860 Static usbd_status 2861 ehci_device_bulk_transfer(usbd_xfer_handle xfer) 2862 { 2863 usbd_status err; 2864 2865 /* Insert last in queue. */ 2866 err = usb_insert_transfer(xfer); 2867 if (err) 2868 return (err); 2869 2870 /* Pipe isn't running, start first */ 2871 return (ehci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2872 } 2873 2874 usbd_status 2875 ehci_device_bulk_start(usbd_xfer_handle xfer) 2876 { 2877 #define exfer EXFER(xfer) 2878 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2879 usbd_device_handle dev = epipe->pipe.device; 2880 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 2881 ehci_soft_qtd_t *data, *dataend; 2882 ehci_soft_qh_t *sqh; 2883 usbd_status err; 2884 int len, isread, endpt; 2885 int s; 2886 2887 DPRINTFN(2, ("ehci_device_bulk_start: xfer=%p len=%d flags=%d\n", 2888 xfer, xfer->length, xfer->flags)); 2889 2890 if (sc->sc_dying) 2891 return (USBD_IOERROR); 2892 2893 #ifdef DIAGNOSTIC 2894 if (xfer->rqflags & URQ_REQUEST) 2895 panic("ehci_device_bulk_start: a request"); 2896 #endif 2897 2898 len = xfer->length; 2899 endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; 2900 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2901 sqh = epipe->sqh; 2902 2903 epipe->u.bulk.length = len; 2904 2905 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, 2906 &dataend); 2907 if (err) { 2908 DPRINTFN(-1,("ehci_device_bulk_transfer: no memory\n")); 2909 xfer->status = err; 2910 usb_transfer_complete(xfer); 2911 return (err); 2912 } 2913 2914 #ifdef EHCI_DEBUG 2915 if (ehcidebug > 5) { 2916 DPRINTF(("ehci_device_bulk_start: data(1)\n")); 2917 ehci_dump_sqh(sqh); 2918 ehci_dump_sqtds(data); 2919 } 2920 #endif 2921 2922 /* Set up interrupt info. */ 2923 exfer->sqtdstart = data; 2924 exfer->sqtdend = dataend; 2925 #ifdef DIAGNOSTIC 2926 if (!exfer->isdone) { 2927 printf("ehci_device_bulk_start: not done, ex=%p\n", exfer); 2928 } 2929 exfer->isdone = 0; 2930 #endif 2931 2932 s = splusb(); 2933 ehci_set_qh_qtd(sqh, data); 2934 if (xfer->timeout && !sc->sc_bus.use_polling) { 2935 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2936 ehci_timeout, xfer); 2937 } 2938 ehci_add_intr_list(sc, exfer); 2939 xfer->status = USBD_IN_PROGRESS; 2940 splx(s); 2941 2942 #ifdef EHCI_DEBUG 2943 if (ehcidebug > 10) { 2944 DPRINTF(("ehci_device_bulk_start: data(2)\n")); 2945 delay(10000); 2946 DPRINTF(("ehci_device_bulk_start: data(3)\n")); 2947 ehci_dump_regs(sc); 2948 #if 0 2949 printf("async_head:\n"); 2950 ehci_dump_sqh(sc->sc_async_head); 2951 #endif 2952 printf("sqh:\n"); 2953 ehci_dump_sqh(sqh); 2954 ehci_dump_sqtds(data); 2955 } 2956 #endif 2957 2958 if (sc->sc_bus.use_polling) 2959 ehci_waitintr(sc, xfer); 2960 2961 return (USBD_IN_PROGRESS); 2962 #undef exfer 2963 } 2964 2965 Static void 2966 ehci_device_bulk_abort(usbd_xfer_handle xfer) 2967 { 2968 DPRINTF(("ehci_device_bulk_abort: xfer=%p\n", xfer)); 2969 ehci_abort_xfer(xfer, USBD_CANCELLED); 2970 } 2971 2972 /* 2973 * Close a device bulk pipe. 2974 */ 2975 Static void 2976 ehci_device_bulk_close(usbd_pipe_handle pipe) 2977 { 2978 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2979 2980 DPRINTF(("ehci_device_bulk_close: pipe=%p\n", pipe)); 2981 ehci_close_pipe(pipe, sc->sc_async_head); 2982 } 2983 2984 void 2985 ehci_device_bulk_done(usbd_xfer_handle xfer) 2986 { 2987 struct ehci_xfer *ex = EXFER(xfer); 2988 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2989 /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ 2990 2991 DPRINTFN(10,("ehci_bulk_done: xfer=%p, actlen=%d\n", 2992 xfer, xfer->actlen)); 2993 2994 if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { 2995 ehci_del_intr_list(ex); /* remove from active list */ 2996 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 2997 } 2998 2999 DPRINTFN(5, ("ehci_bulk_done: length=%d\n", xfer->actlen)); 3000 } 3001 3002 /************************/ 3003 3004 Static usbd_status 3005 ehci_device_setintr(ehci_softc_t *sc, ehci_soft_qh_t *sqh, int ival) 3006 { 3007 struct ehci_soft_islot *isp; 3008 int islot, lev; 3009 3010 /* Find a poll rate that is large enough. */ 3011 for (lev = EHCI_IPOLLRATES - 1; lev > 0; lev--) 3012 if (EHCI_ILEV_IVAL(lev) <= ival) 3013 break; 3014 3015 /* Pick an interrupt slot at the right level. */ 3016 /* XXX could do better than picking at random */ 3017 sc->sc_rand = (sc->sc_rand + 191) % sc->sc_flsize; 3018 islot = EHCI_IQHIDX(lev, sc->sc_rand); 3019 3020 sqh->islot = islot; 3021 isp = &sc->sc_islots[islot]; 3022 ehci_add_qh(sqh, isp->sqh); 3023 3024 return (USBD_NORMAL_COMPLETION); 3025 } 3026 3027 Static usbd_status 3028 ehci_device_intr_transfer(usbd_xfer_handle xfer) 3029 { 3030 usbd_status err; 3031 3032 /* Insert last in queue. */ 3033 err = usb_insert_transfer(xfer); 3034 if (err) 3035 return (err); 3036 3037 /* 3038 * Pipe isn't running (otherwise err would be USBD_INPROG), 3039 * so start it first. 3040 */ 3041 return (ehci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3042 } 3043 3044 Static usbd_status 3045 ehci_device_intr_start(usbd_xfer_handle xfer) 3046 { 3047 #define exfer EXFER(xfer) 3048 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 3049 usbd_device_handle dev = xfer->pipe->device; 3050 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 3051 ehci_soft_qtd_t *data, *dataend; 3052 ehci_soft_qh_t *sqh; 3053 usbd_status err; 3054 int len, isread, endpt; 3055 int s; 3056 3057 DPRINTFN(2, ("ehci_device_intr_start: xfer=%p len=%d flags=%d\n", 3058 xfer, xfer->length, xfer->flags)); 3059 3060 if (sc->sc_dying) 3061 return (USBD_IOERROR); 3062 3063 #ifdef DIAGNOSTIC 3064 if (xfer->rqflags & URQ_REQUEST) 3065 panic("ehci_device_intr_start: a request"); 3066 #endif 3067 3068 len = xfer->length; 3069 endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; 3070 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3071 sqh = epipe->sqh; 3072 3073 epipe->u.intr.length = len; 3074 3075 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, 3076 &dataend); 3077 if (err) { 3078 DPRINTFN(-1, ("ehci_device_intr_start: no memory\n")); 3079 xfer->status = err; 3080 usb_transfer_complete(xfer); 3081 return (err); 3082 } 3083 3084 #ifdef EHCI_DEBUG 3085 if (ehcidebug > 5) { 3086 DPRINTF(("ehci_device_intr_start: data(1)\n")); 3087 ehci_dump_sqh(sqh); 3088 ehci_dump_sqtds(data); 3089 } 3090 #endif 3091 3092 /* Set up interrupt info. */ 3093 exfer->sqtdstart = data; 3094 exfer->sqtdend = dataend; 3095 #ifdef DIAGNOSTIC 3096 if (!exfer->isdone) { 3097 printf("ehci_device_intr_start: not done, ex=%p\n", exfer); 3098 } 3099 exfer->isdone = 0; 3100 #endif 3101 3102 s = splusb(); 3103 ehci_set_qh_qtd(sqh, data); 3104 if (xfer->timeout && !sc->sc_bus.use_polling) { 3105 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 3106 ehci_timeout, xfer); 3107 } 3108 ehci_add_intr_list(sc, exfer); 3109 xfer->status = USBD_IN_PROGRESS; 3110 splx(s); 3111 3112 #ifdef EHCI_DEBUG 3113 if (ehcidebug > 10) { 3114 DPRINTF(("ehci_device_intr_start: data(2)\n")); 3115 delay(10000); 3116 DPRINTF(("ehci_device_intr_start: data(3)\n")); 3117 ehci_dump_regs(sc); 3118 printf("sqh:\n"); 3119 ehci_dump_sqh(sqh); 3120 ehci_dump_sqtds(data); 3121 } 3122 #endif 3123 3124 if (sc->sc_bus.use_polling) 3125 ehci_waitintr(sc, xfer); 3126 3127 return (USBD_IN_PROGRESS); 3128 #undef exfer 3129 } 3130 3131 Static void 3132 ehci_device_intr_abort(usbd_xfer_handle xfer) 3133 { 3134 DPRINTFN(1, ("ehci_device_intr_abort: xfer=%p\n", xfer)); 3135 if (xfer->pipe->intrxfer == xfer) { 3136 DPRINTFN(1, ("echi_device_intr_abort: remove\n")); 3137 xfer->pipe->intrxfer = NULL; 3138 } 3139 ehci_abort_xfer(xfer, USBD_CANCELLED); 3140 } 3141 3142 Static void 3143 ehci_device_intr_close(usbd_pipe_handle pipe) 3144 { 3145 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 3146 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 3147 struct ehci_soft_islot *isp; 3148 3149 isp = &sc->sc_islots[epipe->sqh->islot]; 3150 ehci_close_pipe(pipe, isp->sqh); 3151 } 3152 3153 Static void 3154 ehci_device_intr_done(usbd_xfer_handle xfer) 3155 { 3156 #define exfer EXFER(xfer) 3157 struct ehci_xfer *ex = EXFER(xfer); 3158 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 3159 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 3160 ehci_soft_qtd_t *data, *dataend; 3161 ehci_soft_qh_t *sqh; 3162 usbd_status err; 3163 int len, isread, endpt, s; 3164 3165 DPRINTFN(10, ("ehci_device_intr_done: xfer=%p, actlen=%d\n", 3166 xfer, xfer->actlen)); 3167 3168 if (xfer->pipe->repeat) { 3169 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 3170 3171 len = epipe->u.intr.length; 3172 xfer->length = len; 3173 endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; 3174 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3175 sqh = epipe->sqh; 3176 3177 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, 3178 &data, &dataend); 3179 if (err) { 3180 DPRINTFN(-1, ("ehci_device_intr_done: no memory\n")); 3181 xfer->status = err; 3182 return; 3183 } 3184 3185 /* Set up interrupt info. */ 3186 exfer->sqtdstart = data; 3187 exfer->sqtdend = dataend; 3188 #ifdef DIAGNOSTIC 3189 if (!exfer->isdone) { 3190 printf("ehci_device_intr_done: not done, ex=%p\n", 3191 exfer); 3192 } 3193 exfer->isdone = 0; 3194 #endif 3195 3196 s = splusb(); 3197 ehci_set_qh_qtd(sqh, data); 3198 if (xfer->timeout && !sc->sc_bus.use_polling) { 3199 usb_callout(xfer->timeout_handle, 3200 mstohz(xfer->timeout), ehci_timeout, xfer); 3201 } 3202 splx(s); 3203 3204 xfer->status = USBD_IN_PROGRESS; 3205 } else if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { 3206 ehci_del_intr_list(ex); /* remove from active list */ 3207 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 3208 } 3209 #undef exfer 3210 } 3211 3212 /************************/ 3213 3214 Static usbd_status 3215 ehci_device_isoc_transfer(usbd_xfer_handle xfer) 3216 { 3217 return USBD_IOERROR; 3218 } 3219 Static usbd_status 3220 ehci_device_isoc_start(usbd_xfer_handle xfer) 3221 { 3222 return USBD_IOERROR; 3223 } 3224 Static void 3225 ehci_device_isoc_abort(usbd_xfer_handle xfer) 3226 { 3227 } 3228 Static void 3229 ehci_device_isoc_close(usbd_pipe_handle pipe) 3230 { 3231 } 3232 Static void 3233 ehci_device_isoc_done(usbd_xfer_handle xfer) 3234 { 3235 } 3236
Indexes created Wed Oct 01 19:09:53 GMT 2025