1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2009 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* 28 * This file contains the driver for the ATMEGA series USB OTG Controller. This 29 * driver currently only supports the DCI mode of the USB hardware. 30 */ 31 32 /* 33 * NOTE: When the chip detects BUS-reset it will also reset the 34 * endpoints, Function-address and more. 35 */ 36 37 #ifdef USB_GLOBAL_INCLUDE_FILE 38 #include USB_GLOBAL_INCLUDE_FILE 39 #else 40 #include <sys/stdint.h> 41 #include <sys/stddef.h> 42 #include <sys/param.h> 43 #include <sys/queue.h> 44 #include <sys/types.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/bus.h> 48 #include <sys/module.h> 49 #include <sys/lock.h> 50 #include <sys/mutex.h> 51 #include <sys/condvar.h> 52 #include <sys/sysctl.h> 53 #include <sys/sx.h> 54 #include <sys/unistd.h> 55 #include <sys/callout.h> 56 #include <sys/malloc.h> 57 #include <sys/priv.h> 58 59 #include <dev/usb/usb.h> 60 #include <dev/usb/usbdi.h> 61 62 #define USB_DEBUG_VAR atmegadci_debug 63 64 #include <dev/usb/usb_core.h> 65 #include <dev/usb/usb_debug.h> 66 #include <dev/usb/usb_busdma.h> 67 #include <dev/usb/usb_process.h> 68 #include <dev/usb/usb_transfer.h> 69 #include <dev/usb/usb_device.h> 70 #include <dev/usb/usb_hub.h> 71 #include <dev/usb/usb_util.h> 72 73 #include <dev/usb/usb_controller.h> 74 #include <dev/usb/usb_bus.h> 75 #endif /* USB_GLOBAL_INCLUDE_FILE */ 76 77 #include <dev/usb/controller/atmegadci.h> 78 79 #define ATMEGA_BUS2SC(bus) \ 80 ((struct atmegadci_softc *)(((uint8_t *)(bus)) - \ 81 ((uint8_t *)&(((struct atmegadci_softc *)0)->sc_bus)))) 82 83 #define ATMEGA_PC2SC(pc) \ 84 ATMEGA_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus) 85 86 #ifdef USB_DEBUG 87 static int atmegadci_debug = 0; 88 89 static SYSCTL_NODE(_hw_usb, OID_AUTO, atmegadci, CTLFLAG_RW, 0, 90 "USB ATMEGA DCI"); 91 SYSCTL_INT(_hw_usb_atmegadci, OID_AUTO, debug, CTLFLAG_RW, 92 &atmegadci_debug, 0, "ATMEGA DCI debug level"); 93 #endif 94 95 #define ATMEGA_INTR_ENDPT 1 96 97 /* prototypes */ 98 99 struct usb_bus_methods atmegadci_bus_methods; 100 struct usb_pipe_methods atmegadci_device_non_isoc_methods; 101 struct usb_pipe_methods atmegadci_device_isoc_fs_methods; 102 103 static atmegadci_cmd_t atmegadci_setup_rx; 104 static atmegadci_cmd_t atmegadci_data_rx; 105 static atmegadci_cmd_t atmegadci_data_tx; 106 static atmegadci_cmd_t atmegadci_data_tx_sync; 107 static void atmegadci_device_done(struct usb_xfer *, usb_error_t); 108 static void atmegadci_do_poll(struct usb_bus *); 109 static void atmegadci_standard_done(struct usb_xfer *); 110 static void atmegadci_root_intr(struct atmegadci_softc *sc); 111 112 /* 113 * Here is a list of what the chip supports: 114 */ 115 static const struct usb_hw_ep_profile 116 atmegadci_ep_profile[2] = { 117 118 [0] = { 119 .max_in_frame_size = 64, 120 .max_out_frame_size = 64, 121 .is_simplex = 1, 122 .support_control = 1, 123 }, 124 [1] = { 125 .max_in_frame_size = 64, 126 .max_out_frame_size = 64, 127 .is_simplex = 1, 128 .support_bulk = 1, 129 .support_interrupt = 1, 130 .support_isochronous = 1, 131 .support_in = 1, 132 .support_out = 1, 133 }, 134 }; 135 136 static void 137 atmegadci_get_hw_ep_profile(struct usb_device *udev, 138 const struct usb_hw_ep_profile **ppf, uint8_t ep_addr) 139 { 140 if (ep_addr == 0) 141 *ppf = atmegadci_ep_profile; 142 else if (ep_addr < ATMEGA_EP_MAX) 143 *ppf = atmegadci_ep_profile + 1; 144 else 145 *ppf = NULL; 146 } 147 148 static void 149 atmegadci_clocks_on(struct atmegadci_softc *sc) 150 { 151 if (sc->sc_flags.clocks_off && 152 sc->sc_flags.port_powered) { 153 154 DPRINTFN(5, "\n"); 155 156 /* turn on clocks */ 157 (sc->sc_clocks_on) (&sc->sc_bus); 158 159 ATMEGA_WRITE_1(sc, ATMEGA_USBCON, 160 ATMEGA_USBCON_USBE | 161 ATMEGA_USBCON_OTGPADE | 162 ATMEGA_USBCON_VBUSTE); 163 164 sc->sc_flags.clocks_off = 0; 165 166 /* enable transceiver ? */ 167 } 168 } 169 170 static void 171 atmegadci_clocks_off(struct atmegadci_softc *sc) 172 { 173 if (!sc->sc_flags.clocks_off) { 174 175 DPRINTFN(5, "\n"); 176 177 /* disable Transceiver ? */ 178 179 ATMEGA_WRITE_1(sc, ATMEGA_USBCON, 180 ATMEGA_USBCON_USBE | 181 ATMEGA_USBCON_OTGPADE | 182 ATMEGA_USBCON_FRZCLK | 183 ATMEGA_USBCON_VBUSTE); 184 185 /* turn clocks off */ 186 (sc->sc_clocks_off) (&sc->sc_bus); 187 188 sc->sc_flags.clocks_off = 1; 189 } 190 } 191 192 static void 193 atmegadci_pull_up(struct atmegadci_softc *sc) 194 { 195 /* pullup D+, if possible */ 196 197 if (!sc->sc_flags.d_pulled_up && 198 sc->sc_flags.port_powered) { 199 sc->sc_flags.d_pulled_up = 1; 200 ATMEGA_WRITE_1(sc, ATMEGA_UDCON, 0); 201 } 202 } 203 204 static void 205 atmegadci_pull_down(struct atmegadci_softc *sc) 206 { 207 /* pulldown D+, if possible */ 208 209 if (sc->sc_flags.d_pulled_up) { 210 sc->sc_flags.d_pulled_up = 0; 211 ATMEGA_WRITE_1(sc, ATMEGA_UDCON, ATMEGA_UDCON_DETACH); 212 } 213 } 214 215 static void 216 atmegadci_wakeup_peer(struct atmegadci_softc *sc) 217 { 218 uint8_t temp; 219 220 if (!sc->sc_flags.status_suspend) { 221 return; 222 } 223 224 temp = ATMEGA_READ_1(sc, ATMEGA_UDCON); 225 ATMEGA_WRITE_1(sc, ATMEGA_UDCON, temp | ATMEGA_UDCON_RMWKUP); 226 227 /* wait 8 milliseconds */ 228 /* Wait for reset to complete. */ 229 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 125); 230 231 /* hardware should have cleared RMWKUP bit */ 232 } 233 234 static void 235 atmegadci_set_address(struct atmegadci_softc *sc, uint8_t addr) 236 { 237 DPRINTFN(5, "addr=%d\n", addr); 238 239 addr |= ATMEGA_UDADDR_ADDEN; 240 241 ATMEGA_WRITE_1(sc, ATMEGA_UDADDR, addr); 242 } 243 244 static uint8_t 245 atmegadci_setup_rx(struct atmegadci_td *td) 246 { 247 struct atmegadci_softc *sc; 248 struct usb_device_request req; 249 uint16_t count; 250 uint8_t temp; 251 252 /* get pointer to softc */ 253 sc = ATMEGA_PC2SC(td->pc); 254 255 /* select endpoint number */ 256 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, td->ep_no); 257 258 /* check endpoint status */ 259 temp = ATMEGA_READ_1(sc, ATMEGA_UEINTX); 260 261 DPRINTFN(5, "UEINTX=0x%02x\n", temp); 262 263 if (!(temp & ATMEGA_UEINTX_RXSTPI)) { 264 goto not_complete; 265 } 266 /* clear did stall */ 267 td->did_stall = 0; 268 /* get the packet byte count */ 269 count = 270 (ATMEGA_READ_1(sc, ATMEGA_UEBCHX) << 8) | 271 (ATMEGA_READ_1(sc, ATMEGA_UEBCLX)); 272 273 /* mask away undefined bits */ 274 count &= 0x7FF; 275 276 /* verify data length */ 277 if (count != td->remainder) { 278 DPRINTFN(0, "Invalid SETUP packet " 279 "length, %d bytes\n", count); 280 goto not_complete; 281 } 282 if (count != sizeof(req)) { 283 DPRINTFN(0, "Unsupported SETUP packet " 284 "length, %d bytes\n", count); 285 goto not_complete; 286 } 287 /* receive data */ 288 ATMEGA_READ_MULTI_1(sc, ATMEGA_UEDATX, 289 (void *)&req, sizeof(req)); 290 291 /* copy data into real buffer */ 292 usbd_copy_in(td->pc, 0, &req, sizeof(req)); 293 294 td->offset = sizeof(req); 295 td->remainder = 0; 296 297 /* sneak peek the set address */ 298 if ((req.bmRequestType == UT_WRITE_DEVICE) && 299 (req.bRequest == UR_SET_ADDRESS)) { 300 sc->sc_dv_addr = req.wValue[0] & 0x7F; 301 /* must write address before ZLP */ 302 ATMEGA_WRITE_1(sc, ATMEGA_UDADDR, sc->sc_dv_addr); 303 } else { 304 sc->sc_dv_addr = 0xFF; 305 } 306 307 /* Clear SETUP packet interrupt and all other previous interrupts */ 308 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, 0); 309 return (0); /* complete */ 310 311 not_complete: 312 /* abort any ongoing transfer */ 313 if (!td->did_stall) { 314 DPRINTFN(5, "stalling\n"); 315 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 316 ATMEGA_UECONX_EPEN | 317 ATMEGA_UECONX_STALLRQ); 318 td->did_stall = 1; 319 } 320 if (temp & ATMEGA_UEINTX_RXSTPI) { 321 /* clear SETUP packet interrupt */ 322 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, ~ATMEGA_UEINTX_RXSTPI); 323 } 324 /* we only want to know if there is a SETUP packet */ 325 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, ATMEGA_UEIENX_RXSTPE); 326 return (1); /* not complete */ 327 } 328 329 static uint8_t 330 atmegadci_data_rx(struct atmegadci_td *td) 331 { 332 struct atmegadci_softc *sc; 333 struct usb_page_search buf_res; 334 uint16_t count; 335 uint8_t temp; 336 uint8_t to; 337 uint8_t got_short; 338 339 to = 3; /* don't loop forever! */ 340 got_short = 0; 341 342 /* get pointer to softc */ 343 sc = ATMEGA_PC2SC(td->pc); 344 345 /* select endpoint number */ 346 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, td->ep_no); 347 348 repeat: 349 /* check if any of the FIFO banks have data */ 350 /* check endpoint status */ 351 temp = ATMEGA_READ_1(sc, ATMEGA_UEINTX); 352 353 DPRINTFN(5, "temp=0x%02x rem=%u\n", temp, td->remainder); 354 355 if (temp & ATMEGA_UEINTX_RXSTPI) { 356 if (td->remainder == 0) { 357 /* 358 * We are actually complete and have 359 * received the next SETUP 360 */ 361 DPRINTFN(5, "faking complete\n"); 362 return (0); /* complete */ 363 } 364 /* 365 * USB Host Aborted the transfer. 366 */ 367 td->error = 1; 368 return (0); /* complete */ 369 } 370 /* check status */ 371 if (!(temp & (ATMEGA_UEINTX_FIFOCON | 372 ATMEGA_UEINTX_RXOUTI))) { 373 /* no data */ 374 goto not_complete; 375 } 376 /* get the packet byte count */ 377 count = 378 (ATMEGA_READ_1(sc, ATMEGA_UEBCHX) << 8) | 379 (ATMEGA_READ_1(sc, ATMEGA_UEBCLX)); 380 381 /* mask away undefined bits */ 382 count &= 0x7FF; 383 384 /* verify the packet byte count */ 385 if (count != td->max_packet_size) { 386 if (count < td->max_packet_size) { 387 /* we have a short packet */ 388 td->short_pkt = 1; 389 got_short = 1; 390 } else { 391 /* invalid USB packet */ 392 td->error = 1; 393 return (0); /* we are complete */ 394 } 395 } 396 /* verify the packet byte count */ 397 if (count > td->remainder) { 398 /* invalid USB packet */ 399 td->error = 1; 400 return (0); /* we are complete */ 401 } 402 while (count > 0) { 403 usbd_get_page(td->pc, td->offset, &buf_res); 404 405 /* get correct length */ 406 if (buf_res.length > count) { 407 buf_res.length = count; 408 } 409 /* receive data */ 410 ATMEGA_READ_MULTI_1(sc, ATMEGA_UEDATX, 411 buf_res.buffer, buf_res.length); 412 413 /* update counters */ 414 count -= buf_res.length; 415 td->offset += buf_res.length; 416 td->remainder -= buf_res.length; 417 } 418 419 /* clear OUT packet interrupt */ 420 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, ATMEGA_UEINTX_RXOUTI ^ 0xFF); 421 422 /* release FIFO bank */ 423 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, ATMEGA_UEINTX_FIFOCON ^ 0xFF); 424 425 /* check if we are complete */ 426 if ((td->remainder == 0) || got_short) { 427 if (td->short_pkt) { 428 /* we are complete */ 429 return (0); 430 } 431 /* else need to receive a zero length packet */ 432 } 433 if (--to) { 434 goto repeat; 435 } 436 not_complete: 437 /* we only want to know if there is a SETUP packet or OUT packet */ 438 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, 439 ATMEGA_UEIENX_RXSTPE | ATMEGA_UEIENX_RXOUTE); 440 return (1); /* not complete */ 441 } 442 443 static uint8_t 444 atmegadci_data_tx(struct atmegadci_td *td) 445 { 446 struct atmegadci_softc *sc; 447 struct usb_page_search buf_res; 448 uint16_t count; 449 uint8_t to; 450 uint8_t temp; 451 452 to = 3; /* don't loop forever! */ 453 454 /* get pointer to softc */ 455 sc = ATMEGA_PC2SC(td->pc); 456 457 /* select endpoint number */ 458 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, td->ep_no); 459 460 repeat: 461 462 /* check endpoint status */ 463 temp = ATMEGA_READ_1(sc, ATMEGA_UEINTX); 464 465 DPRINTFN(5, "temp=0x%02x rem=%u\n", temp, td->remainder); 466 467 if (temp & ATMEGA_UEINTX_RXSTPI) { 468 /* 469 * The current transfer was aborted 470 * by the USB Host 471 */ 472 td->error = 1; 473 return (0); /* complete */ 474 } 475 476 temp = ATMEGA_READ_1(sc, ATMEGA_UESTA0X); 477 if (temp & 3) { 478 /* cannot write any data - a bank is busy */ 479 goto not_complete; 480 } 481 482 count = td->max_packet_size; 483 if (td->remainder < count) { 484 /* we have a short packet */ 485 td->short_pkt = 1; 486 count = td->remainder; 487 } 488 while (count > 0) { 489 490 usbd_get_page(td->pc, td->offset, &buf_res); 491 492 /* get correct length */ 493 if (buf_res.length > count) { 494 buf_res.length = count; 495 } 496 /* transmit data */ 497 ATMEGA_WRITE_MULTI_1(sc, ATMEGA_UEDATX, 498 buf_res.buffer, buf_res.length); 499 500 /* update counters */ 501 count -= buf_res.length; 502 td->offset += buf_res.length; 503 td->remainder -= buf_res.length; 504 } 505 506 /* clear IN packet interrupt */ 507 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, 0xFF ^ ATMEGA_UEINTX_TXINI); 508 509 /* allocate FIFO bank */ 510 ATMEGA_WRITE_1(sc, ATMEGA_UEINTX, 0xFF ^ ATMEGA_UEINTX_FIFOCON); 511 512 /* check remainder */ 513 if (td->remainder == 0) { 514 if (td->short_pkt) { 515 return (0); /* complete */ 516 } 517 /* else we need to transmit a short packet */ 518 } 519 if (--to) { 520 goto repeat; 521 } 522 not_complete: 523 /* we only want to know if there is a SETUP packet or free IN packet */ 524 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, 525 ATMEGA_UEIENX_RXSTPE | ATMEGA_UEIENX_TXINE); 526 return (1); /* not complete */ 527 } 528 529 static uint8_t 530 atmegadci_data_tx_sync(struct atmegadci_td *td) 531 { 532 struct atmegadci_softc *sc; 533 uint8_t temp; 534 535 /* get pointer to softc */ 536 sc = ATMEGA_PC2SC(td->pc); 537 538 /* select endpoint number */ 539 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, td->ep_no); 540 541 /* check endpoint status */ 542 temp = ATMEGA_READ_1(sc, ATMEGA_UEINTX); 543 544 DPRINTFN(5, "temp=0x%02x\n", temp); 545 546 if (temp & ATMEGA_UEINTX_RXSTPI) { 547 DPRINTFN(5, "faking complete\n"); 548 /* Race condition */ 549 return (0); /* complete */ 550 } 551 /* 552 * The control endpoint has only got one bank, so if that bank 553 * is free the packet has been transferred! 554 */ 555 temp = ATMEGA_READ_1(sc, ATMEGA_UESTA0X); 556 if (temp & 3) { 557 /* cannot write any data - a bank is busy */ 558 goto not_complete; 559 } 560 if (sc->sc_dv_addr != 0xFF) { 561 /* set new address */ 562 atmegadci_set_address(sc, sc->sc_dv_addr); 563 } 564 return (0); /* complete */ 565 566 not_complete: 567 /* we only want to know if there is a SETUP packet or free IN packet */ 568 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, 569 ATMEGA_UEIENX_RXSTPE | ATMEGA_UEIENX_TXINE); 570 return (1); /* not complete */ 571 } 572 573 static uint8_t 574 atmegadci_xfer_do_fifo(struct usb_xfer *xfer) 575 { 576 struct atmegadci_td *td; 577 578 DPRINTFN(9, "\n"); 579 580 td = xfer->td_transfer_cache; 581 while (1) { 582 if ((td->func) (td)) { 583 /* operation in progress */ 584 break; 585 } 586 if (((void *)td) == xfer->td_transfer_last) { 587 goto done; 588 } 589 if (td->error) { 590 goto done; 591 } else if (td->remainder > 0) { 592 /* 593 * We had a short transfer. If there is no alternate 594 * next, stop processing ! 595 */ 596 if (!td->alt_next) { 597 goto done; 598 } 599 } 600 /* 601 * Fetch the next transfer descriptor and transfer 602 * some flags to the next transfer descriptor 603 */ 604 td = td->obj_next; 605 xfer->td_transfer_cache = td; 606 } 607 return (1); /* not complete */ 608 609 done: 610 /* compute all actual lengths */ 611 612 atmegadci_standard_done(xfer); 613 return (0); /* complete */ 614 } 615 616 static void 617 atmegadci_interrupt_poll(struct atmegadci_softc *sc) 618 { 619 struct usb_xfer *xfer; 620 621 repeat: 622 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 623 if (!atmegadci_xfer_do_fifo(xfer)) { 624 /* queue has been modified */ 625 goto repeat; 626 } 627 } 628 } 629 630 static void 631 atmegadci_vbus_interrupt(struct atmegadci_softc *sc, uint8_t is_on) 632 { 633 DPRINTFN(5, "vbus = %u\n", is_on); 634 635 if (is_on) { 636 if (!sc->sc_flags.status_vbus) { 637 sc->sc_flags.status_vbus = 1; 638 639 /* complete root HUB interrupt endpoint */ 640 641 atmegadci_root_intr(sc); 642 } 643 } else { 644 if (sc->sc_flags.status_vbus) { 645 sc->sc_flags.status_vbus = 0; 646 sc->sc_flags.status_bus_reset = 0; 647 sc->sc_flags.status_suspend = 0; 648 sc->sc_flags.change_suspend = 0; 649 sc->sc_flags.change_connect = 1; 650 651 /* complete root HUB interrupt endpoint */ 652 653 atmegadci_root_intr(sc); 654 } 655 } 656 } 657 658 void 659 atmegadci_interrupt(struct atmegadci_softc *sc) 660 { 661 uint8_t status; 662 663 USB_BUS_LOCK(&sc->sc_bus); 664 665 /* read interrupt status */ 666 status = ATMEGA_READ_1(sc, ATMEGA_UDINT); 667 668 /* clear all set interrupts */ 669 ATMEGA_WRITE_1(sc, ATMEGA_UDINT, (~status) & 0x7D); 670 671 DPRINTFN(14, "UDINT=0x%02x\n", status); 672 673 /* check for any bus state change interrupts */ 674 if (status & ATMEGA_UDINT_EORSTI) { 675 676 DPRINTFN(5, "end of reset\n"); 677 678 /* set correct state */ 679 sc->sc_flags.status_bus_reset = 1; 680 sc->sc_flags.status_suspend = 0; 681 sc->sc_flags.change_suspend = 0; 682 sc->sc_flags.change_connect = 1; 683 684 /* disable resume interrupt */ 685 ATMEGA_WRITE_1(sc, ATMEGA_UDIEN, 686 ATMEGA_UDINT_SUSPE | 687 ATMEGA_UDINT_EORSTE); 688 689 /* complete root HUB interrupt endpoint */ 690 atmegadci_root_intr(sc); 691 } 692 /* 693 * If resume and suspend is set at the same time we interpret 694 * that like RESUME. Resume is set when there is at least 3 695 * milliseconds of inactivity on the USB BUS. 696 */ 697 if (status & ATMEGA_UDINT_WAKEUPI) { 698 699 DPRINTFN(5, "resume interrupt\n"); 700 701 if (sc->sc_flags.status_suspend) { 702 /* update status bits */ 703 sc->sc_flags.status_suspend = 0; 704 sc->sc_flags.change_suspend = 1; 705 706 /* disable resume interrupt */ 707 ATMEGA_WRITE_1(sc, ATMEGA_UDIEN, 708 ATMEGA_UDINT_SUSPE | 709 ATMEGA_UDINT_EORSTE); 710 711 /* complete root HUB interrupt endpoint */ 712 atmegadci_root_intr(sc); 713 } 714 } else if (status & ATMEGA_UDINT_SUSPI) { 715 716 DPRINTFN(5, "suspend interrupt\n"); 717 718 if (!sc->sc_flags.status_suspend) { 719 /* update status bits */ 720 sc->sc_flags.status_suspend = 1; 721 sc->sc_flags.change_suspend = 1; 722 723 /* disable suspend interrupt */ 724 ATMEGA_WRITE_1(sc, ATMEGA_UDIEN, 725 ATMEGA_UDINT_WAKEUPE | 726 ATMEGA_UDINT_EORSTE); 727 728 /* complete root HUB interrupt endpoint */ 729 atmegadci_root_intr(sc); 730 } 731 } 732 /* check VBUS */ 733 status = ATMEGA_READ_1(sc, ATMEGA_USBINT); 734 735 /* clear all set interrupts */ 736 ATMEGA_WRITE_1(sc, ATMEGA_USBINT, (~status) & 0x03); 737 738 if (status & ATMEGA_USBINT_VBUSTI) { 739 uint8_t temp; 740 741 DPRINTFN(5, "USBINT=0x%02x\n", status); 742 743 temp = ATMEGA_READ_1(sc, ATMEGA_USBSTA); 744 atmegadci_vbus_interrupt(sc, temp & ATMEGA_USBSTA_VBUS); 745 } 746 /* check for any endpoint interrupts */ 747 status = ATMEGA_READ_1(sc, ATMEGA_UEINT); 748 /* the hardware will clear the UEINT bits automatically */ 749 if (status) { 750 751 DPRINTFN(5, "real endpoint interrupt UEINT=0x%02x\n", status); 752 753 atmegadci_interrupt_poll(sc); 754 } 755 USB_BUS_UNLOCK(&sc->sc_bus); 756 } 757 758 static void 759 atmegadci_setup_standard_chain_sub(struct atmegadci_std_temp *temp) 760 { 761 struct atmegadci_td *td; 762 763 /* get current Transfer Descriptor */ 764 td = temp->td_next; 765 temp->td = td; 766 767 /* prepare for next TD */ 768 temp->td_next = td->obj_next; 769 770 /* fill out the Transfer Descriptor */ 771 td->func = temp->func; 772 td->pc = temp->pc; 773 td->offset = temp->offset; 774 td->remainder = temp->len; 775 td->error = 0; 776 td->did_stall = temp->did_stall; 777 td->short_pkt = temp->short_pkt; 778 td->alt_next = temp->setup_alt_next; 779 } 780 781 static void 782 atmegadci_setup_standard_chain(struct usb_xfer *xfer) 783 { 784 struct atmegadci_std_temp temp; 785 struct atmegadci_softc *sc; 786 struct atmegadci_td *td; 787 uint32_t x; 788 uint8_t ep_no; 789 uint8_t need_sync; 790 791 DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n", 792 xfer->address, UE_GET_ADDR(xfer->endpointno), 793 xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); 794 795 temp.max_frame_size = xfer->max_frame_size; 796 797 td = xfer->td_start[0]; 798 xfer->td_transfer_first = td; 799 xfer->td_transfer_cache = td; 800 801 /* setup temp */ 802 803 temp.pc = NULL; 804 temp.td = NULL; 805 temp.td_next = xfer->td_start[0]; 806 temp.offset = 0; 807 temp.setup_alt_next = xfer->flags_int.short_frames_ok; 808 temp.did_stall = !xfer->flags_int.control_stall; 809 810 sc = ATMEGA_BUS2SC(xfer->xroot->bus); 811 ep_no = (xfer->endpointno & UE_ADDR); 812 813 /* check if we should prepend a setup message */ 814 815 if (xfer->flags_int.control_xfr) { 816 if (xfer->flags_int.control_hdr) { 817 818 temp.func = &atmegadci_setup_rx; 819 temp.len = xfer->frlengths[0]; 820 temp.pc = xfer->frbuffers + 0; 821 temp.short_pkt = temp.len ? 1 : 0; 822 /* check for last frame */ 823 if (xfer->nframes == 1) { 824 /* no STATUS stage yet, SETUP is last */ 825 if (xfer->flags_int.control_act) 826 temp.setup_alt_next = 0; 827 } 828 829 atmegadci_setup_standard_chain_sub(&temp); 830 } 831 x = 1; 832 } else { 833 x = 0; 834 } 835 836 if (x != xfer->nframes) { 837 if (xfer->endpointno & UE_DIR_IN) { 838 temp.func = &atmegadci_data_tx; 839 need_sync = 1; 840 } else { 841 temp.func = &atmegadci_data_rx; 842 need_sync = 0; 843 } 844 845 /* setup "pc" pointer */ 846 temp.pc = xfer->frbuffers + x; 847 } else { 848 need_sync = 0; 849 } 850 while (x != xfer->nframes) { 851 852 /* DATA0 / DATA1 message */ 853 854 temp.len = xfer->frlengths[x]; 855 856 x++; 857 858 if (x == xfer->nframes) { 859 if (xfer->flags_int.control_xfr) { 860 if (xfer->flags_int.control_act) { 861 temp.setup_alt_next = 0; 862 } 863 } else { 864 temp.setup_alt_next = 0; 865 } 866 } 867 if (temp.len == 0) { 868 869 /* make sure that we send an USB packet */ 870 871 temp.short_pkt = 0; 872 873 } else { 874 875 /* regular data transfer */ 876 877 temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1; 878 } 879 880 atmegadci_setup_standard_chain_sub(&temp); 881 882 if (xfer->flags_int.isochronous_xfr) { 883 temp.offset += temp.len; 884 } else { 885 /* get next Page Cache pointer */ 886 temp.pc = xfer->frbuffers + x; 887 } 888 } 889 890 if (xfer->flags_int.control_xfr) { 891 892 /* always setup a valid "pc" pointer for status and sync */ 893 temp.pc = xfer->frbuffers + 0; 894 temp.len = 0; 895 temp.short_pkt = 0; 896 temp.setup_alt_next = 0; 897 898 /* check if we need to sync */ 899 if (need_sync) { 900 /* we need a SYNC point after TX */ 901 temp.func = &atmegadci_data_tx_sync; 902 atmegadci_setup_standard_chain_sub(&temp); 903 } 904 905 /* check if we should append a status stage */ 906 if (!xfer->flags_int.control_act) { 907 908 /* 909 * Send a DATA1 message and invert the current 910 * endpoint direction. 911 */ 912 if (xfer->endpointno & UE_DIR_IN) { 913 temp.func = &atmegadci_data_rx; 914 need_sync = 0; 915 } else { 916 temp.func = &atmegadci_data_tx; 917 need_sync = 1; 918 } 919 920 atmegadci_setup_standard_chain_sub(&temp); 921 if (need_sync) { 922 /* we need a SYNC point after TX */ 923 temp.func = &atmegadci_data_tx_sync; 924 atmegadci_setup_standard_chain_sub(&temp); 925 } 926 } 927 } 928 /* must have at least one frame! */ 929 td = temp.td; 930 xfer->td_transfer_last = td; 931 } 932 933 static void 934 atmegadci_timeout(void *arg) 935 { 936 struct usb_xfer *xfer = arg; 937 938 DPRINTF("xfer=%p\n", xfer); 939 940 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 941 942 /* transfer is transferred */ 943 atmegadci_device_done(xfer, USB_ERR_TIMEOUT); 944 } 945 946 static void 947 atmegadci_start_standard_chain(struct usb_xfer *xfer) 948 { 949 DPRINTFN(9, "\n"); 950 951 /* poll one time - will turn on interrupts */ 952 if (atmegadci_xfer_do_fifo(xfer)) { 953 954 /* put transfer on interrupt queue */ 955 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 956 957 /* start timeout, if any */ 958 if (xfer->timeout != 0) { 959 usbd_transfer_timeout_ms(xfer, 960 &atmegadci_timeout, xfer->timeout); 961 } 962 } 963 } 964 965 static void 966 atmegadci_root_intr(struct atmegadci_softc *sc) 967 { 968 DPRINTFN(9, "\n"); 969 970 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 971 972 /* set port bit */ 973 sc->sc_hub_idata[0] = 0x02; /* we only have one port */ 974 975 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 976 sizeof(sc->sc_hub_idata)); 977 } 978 979 static usb_error_t 980 atmegadci_standard_done_sub(struct usb_xfer *xfer) 981 { 982 struct atmegadci_td *td; 983 uint32_t len; 984 uint8_t error; 985 986 DPRINTFN(9, "\n"); 987 988 td = xfer->td_transfer_cache; 989 990 do { 991 len = td->remainder; 992 993 if (xfer->aframes != xfer->nframes) { 994 /* 995 * Verify the length and subtract 996 * the remainder from "frlengths[]": 997 */ 998 if (len > xfer->frlengths[xfer->aframes]) { 999 td->error = 1; 1000 } else { 1001 xfer->frlengths[xfer->aframes] -= len; 1002 } 1003 } 1004 /* Check for transfer error */ 1005 if (td->error) { 1006 /* the transfer is finished */ 1007 error = 1; 1008 td = NULL; 1009 break; 1010 } 1011 /* Check for short transfer */ 1012 if (len > 0) { 1013 if (xfer->flags_int.short_frames_ok) { 1014 /* follow alt next */ 1015 if (td->alt_next) { 1016 td = td->obj_next; 1017 } else { 1018 td = NULL; 1019 } 1020 } else { 1021 /* the transfer is finished */ 1022 td = NULL; 1023 } 1024 error = 0; 1025 break; 1026 } 1027 td = td->obj_next; 1028 1029 /* this USB frame is complete */ 1030 error = 0; 1031 break; 1032 1033 } while (0); 1034 1035 /* update transfer cache */ 1036 1037 xfer->td_transfer_cache = td; 1038 1039 return (error ? 1040 USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION); 1041 } 1042 1043 static void 1044 atmegadci_standard_done(struct usb_xfer *xfer) 1045 { 1046 usb_error_t err = 0; 1047 1048 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 1049 xfer, xfer->endpoint); 1050 1051 /* reset scanner */ 1052 1053 xfer->td_transfer_cache = xfer->td_transfer_first; 1054 1055 if (xfer->flags_int.control_xfr) { 1056 1057 if (xfer->flags_int.control_hdr) { 1058 1059 err = atmegadci_standard_done_sub(xfer); 1060 } 1061 xfer->aframes = 1; 1062 1063 if (xfer->td_transfer_cache == NULL) { 1064 goto done; 1065 } 1066 } 1067 while (xfer->aframes != xfer->nframes) { 1068 1069 err = atmegadci_standard_done_sub(xfer); 1070 xfer->aframes++; 1071 1072 if (xfer->td_transfer_cache == NULL) { 1073 goto done; 1074 } 1075 } 1076 1077 if (xfer->flags_int.control_xfr && 1078 !xfer->flags_int.control_act) { 1079 1080 err = atmegadci_standard_done_sub(xfer); 1081 } 1082 done: 1083 atmegadci_device_done(xfer, err); 1084 } 1085 1086 /*------------------------------------------------------------------------* 1087 * atmegadci_device_done 1088 * 1089 * NOTE: this function can be called more than one time on the 1090 * same USB transfer! 1091 *------------------------------------------------------------------------*/ 1092 static void 1093 atmegadci_device_done(struct usb_xfer *xfer, usb_error_t error) 1094 { 1095 struct atmegadci_softc *sc = ATMEGA_BUS2SC(xfer->xroot->bus); 1096 uint8_t ep_no; 1097 1098 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1099 1100 DPRINTFN(9, "xfer=%p, endpoint=%p, error=%d\n", 1101 xfer, xfer->endpoint, error); 1102 1103 if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) { 1104 ep_no = (xfer->endpointno & UE_ADDR); 1105 1106 /* select endpoint number */ 1107 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, ep_no); 1108 1109 /* disable endpoint interrupt */ 1110 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, 0); 1111 1112 DPRINTFN(15, "disabled interrupts!\n"); 1113 } 1114 /* dequeue transfer and start next transfer */ 1115 usbd_transfer_done(xfer, error); 1116 } 1117 1118 static void 1119 atmegadci_xfer_stall(struct usb_xfer *xfer) 1120 { 1121 atmegadci_device_done(xfer, USB_ERR_STALLED); 1122 } 1123 1124 static void 1125 atmegadci_set_stall(struct usb_device *udev, 1126 struct usb_endpoint *ep, uint8_t *did_stall) 1127 { 1128 struct atmegadci_softc *sc; 1129 uint8_t ep_no; 1130 1131 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1132 1133 DPRINTFN(5, "endpoint=%p\n", ep); 1134 1135 sc = ATMEGA_BUS2SC(udev->bus); 1136 /* get endpoint number */ 1137 ep_no = (ep->edesc->bEndpointAddress & UE_ADDR); 1138 /* select endpoint number */ 1139 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, ep_no); 1140 /* set stall */ 1141 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 1142 ATMEGA_UECONX_EPEN | 1143 ATMEGA_UECONX_STALLRQ); 1144 } 1145 1146 static void 1147 atmegadci_clear_stall_sub(struct atmegadci_softc *sc, uint8_t ep_no, 1148 uint8_t ep_type, uint8_t ep_dir) 1149 { 1150 uint8_t temp; 1151 1152 if (ep_type == UE_CONTROL) { 1153 /* clearing stall is not needed */ 1154 return; 1155 } 1156 /* select endpoint number */ 1157 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, ep_no); 1158 1159 /* set endpoint reset */ 1160 ATMEGA_WRITE_1(sc, ATMEGA_UERST, ATMEGA_UERST_MASK(ep_no)); 1161 1162 /* clear endpoint reset */ 1163 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 0); 1164 1165 /* set stall */ 1166 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 1167 ATMEGA_UECONX_EPEN | 1168 ATMEGA_UECONX_STALLRQ); 1169 1170 /* reset data toggle */ 1171 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 1172 ATMEGA_UECONX_EPEN | 1173 ATMEGA_UECONX_RSTDT); 1174 1175 /* clear stall */ 1176 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 1177 ATMEGA_UECONX_EPEN | 1178 ATMEGA_UECONX_STALLRQC); 1179 1180 do { 1181 if (ep_type == UE_BULK) { 1182 temp = ATMEGA_UECFG0X_EPTYPE2; 1183 } else if (ep_type == UE_INTERRUPT) { 1184 temp = ATMEGA_UECFG0X_EPTYPE3; 1185 } else { 1186 temp = ATMEGA_UECFG0X_EPTYPE1; 1187 } 1188 if (ep_dir & UE_DIR_IN) { 1189 temp |= ATMEGA_UECFG0X_EPDIR; 1190 } 1191 /* two banks, 64-bytes wMaxPacket */ 1192 ATMEGA_WRITE_1(sc, ATMEGA_UECFG0X, temp); 1193 ATMEGA_WRITE_1(sc, ATMEGA_UECFG1X, 1194 ATMEGA_UECFG1X_ALLOC | 1195 ATMEGA_UECFG1X_EPBK0 | /* one bank */ 1196 ATMEGA_UECFG1X_EPSIZE(3)); 1197 1198 temp = ATMEGA_READ_1(sc, ATMEGA_UESTA0X); 1199 if (!(temp & ATMEGA_UESTA0X_CFGOK)) { 1200 device_printf(sc->sc_bus.bdev, 1201 "Chip rejected configuration\n"); 1202 } 1203 } while (0); 1204 } 1205 1206 static void 1207 atmegadci_clear_stall(struct usb_device *udev, struct usb_endpoint *ep) 1208 { 1209 struct atmegadci_softc *sc; 1210 struct usb_endpoint_descriptor *ed; 1211 1212 DPRINTFN(5, "endpoint=%p\n", ep); 1213 1214 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1215 1216 /* check mode */ 1217 if (udev->flags.usb_mode != USB_MODE_DEVICE) { 1218 /* not supported */ 1219 return; 1220 } 1221 /* get softc */ 1222 sc = ATMEGA_BUS2SC(udev->bus); 1223 1224 /* get endpoint descriptor */ 1225 ed = ep->edesc; 1226 1227 /* reset endpoint */ 1228 atmegadci_clear_stall_sub(sc, 1229 (ed->bEndpointAddress & UE_ADDR), 1230 (ed->bmAttributes & UE_XFERTYPE), 1231 (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT))); 1232 } 1233 1234 usb_error_t 1235 atmegadci_init(struct atmegadci_softc *sc) 1236 { 1237 uint8_t n; 1238 1239 DPRINTF("start\n"); 1240 1241 /* set up the bus structure */ 1242 sc->sc_bus.usbrev = USB_REV_1_1; 1243 sc->sc_bus.methods = &atmegadci_bus_methods; 1244 1245 USB_BUS_LOCK(&sc->sc_bus); 1246 1247 /* make sure USB is enabled */ 1248 ATMEGA_WRITE_1(sc, ATMEGA_USBCON, 1249 ATMEGA_USBCON_USBE | 1250 ATMEGA_USBCON_FRZCLK); 1251 1252 /* enable USB PAD regulator */ 1253 ATMEGA_WRITE_1(sc, ATMEGA_UHWCON, 1254 ATMEGA_UHWCON_UVREGE | 1255 ATMEGA_UHWCON_UIMOD); 1256 1257 /* the following register sets up the USB PLL, assuming 16MHz X-tal */ 1258 ATMEGA_WRITE_1(sc, 0x49 /* PLLCSR */, 0x14 | 0x02); 1259 1260 /* wait for PLL to lock */ 1261 for (n = 0; n != 20; n++) { 1262 if (ATMEGA_READ_1(sc, 0x49) & 0x01) 1263 break; 1264 /* wait a little bit for PLL to start */ 1265 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); 1266 } 1267 1268 /* make sure USB is enabled */ 1269 ATMEGA_WRITE_1(sc, ATMEGA_USBCON, 1270 ATMEGA_USBCON_USBE | 1271 ATMEGA_USBCON_OTGPADE | 1272 ATMEGA_USBCON_VBUSTE); 1273 1274 /* turn on clocks */ 1275 (sc->sc_clocks_on) (&sc->sc_bus); 1276 1277 /* make sure device is re-enumerated */ 1278 ATMEGA_WRITE_1(sc, ATMEGA_UDCON, ATMEGA_UDCON_DETACH); 1279 1280 /* wait a little for things to stabilise */ 1281 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 20); 1282 1283 /* enable interrupts */ 1284 ATMEGA_WRITE_1(sc, ATMEGA_UDIEN, 1285 ATMEGA_UDINT_SUSPE | 1286 ATMEGA_UDINT_EORSTE); 1287 1288 /* reset all endpoints */ 1289 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 1290 (1 << ATMEGA_EP_MAX) - 1); 1291 1292 /* disable reset */ 1293 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 0); 1294 1295 /* disable all endpoints */ 1296 for (n = 0; n != ATMEGA_EP_MAX; n++) { 1297 1298 /* select endpoint */ 1299 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, n); 1300 1301 /* disable endpoint interrupt */ 1302 ATMEGA_WRITE_1(sc, ATMEGA_UEIENX, 0); 1303 1304 /* disable endpoint */ 1305 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 0); 1306 } 1307 1308 /* turn off clocks */ 1309 1310 atmegadci_clocks_off(sc); 1311 1312 /* read initial VBUS state */ 1313 1314 n = ATMEGA_READ_1(sc, ATMEGA_USBSTA); 1315 atmegadci_vbus_interrupt(sc, n & ATMEGA_USBSTA_VBUS); 1316 1317 USB_BUS_UNLOCK(&sc->sc_bus); 1318 1319 /* catch any lost interrupts */ 1320 1321 atmegadci_do_poll(&sc->sc_bus); 1322 1323 return (0); /* success */ 1324 } 1325 1326 void 1327 atmegadci_uninit(struct atmegadci_softc *sc) 1328 { 1329 USB_BUS_LOCK(&sc->sc_bus); 1330 1331 /* turn on clocks */ 1332 (sc->sc_clocks_on) (&sc->sc_bus); 1333 1334 /* disable interrupts */ 1335 ATMEGA_WRITE_1(sc, ATMEGA_UDIEN, 0); 1336 1337 /* reset all endpoints */ 1338 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 1339 (1 << ATMEGA_EP_MAX) - 1); 1340 1341 /* disable reset */ 1342 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 0); 1343 1344 sc->sc_flags.port_powered = 0; 1345 sc->sc_flags.status_vbus = 0; 1346 sc->sc_flags.status_bus_reset = 0; 1347 sc->sc_flags.status_suspend = 0; 1348 sc->sc_flags.change_suspend = 0; 1349 sc->sc_flags.change_connect = 1; 1350 1351 atmegadci_pull_down(sc); 1352 atmegadci_clocks_off(sc); 1353 1354 /* disable USB PAD regulator */ 1355 ATMEGA_WRITE_1(sc, ATMEGA_UHWCON, 0); 1356 1357 USB_BUS_UNLOCK(&sc->sc_bus); 1358 } 1359 1360 static void 1361 atmegadci_suspend(struct atmegadci_softc *sc) 1362 { 1363 /* TODO */ 1364 } 1365 1366 static void 1367 atmegadci_resume(struct atmegadci_softc *sc) 1368 { 1369 /* TODO */ 1370 } 1371 1372 static void 1373 atmegadci_do_poll(struct usb_bus *bus) 1374 { 1375 struct atmegadci_softc *sc = ATMEGA_BUS2SC(bus); 1376 1377 USB_BUS_LOCK(&sc->sc_bus); 1378 atmegadci_interrupt_poll(sc); 1379 USB_BUS_UNLOCK(&sc->sc_bus); 1380 } 1381 1382 /*------------------------------------------------------------------------* 1383 * at91dci bulk support 1384 * at91dci control support 1385 * at91dci interrupt support 1386 *------------------------------------------------------------------------*/ 1387 static void 1388 atmegadci_device_non_isoc_open(struct usb_xfer *xfer) 1389 { 1390 return; 1391 } 1392 1393 static void 1394 atmegadci_device_non_isoc_close(struct usb_xfer *xfer) 1395 { 1396 atmegadci_device_done(xfer, USB_ERR_CANCELLED); 1397 } 1398 1399 static void 1400 atmegadci_device_non_isoc_enter(struct usb_xfer *xfer) 1401 { 1402 return; 1403 } 1404 1405 static void 1406 atmegadci_device_non_isoc_start(struct usb_xfer *xfer) 1407 { 1408 /* setup TDs */ 1409 atmegadci_setup_standard_chain(xfer); 1410 atmegadci_start_standard_chain(xfer); 1411 } 1412 1413 struct usb_pipe_methods atmegadci_device_non_isoc_methods = 1414 { 1415 .open = atmegadci_device_non_isoc_open, 1416 .close = atmegadci_device_non_isoc_close, 1417 .enter = atmegadci_device_non_isoc_enter, 1418 .start = atmegadci_device_non_isoc_start, 1419 }; 1420 1421 /*------------------------------------------------------------------------* 1422 * at91dci full speed isochronous support 1423 *------------------------------------------------------------------------*/ 1424 static void 1425 atmegadci_device_isoc_fs_open(struct usb_xfer *xfer) 1426 { 1427 return; 1428 } 1429 1430 static void 1431 atmegadci_device_isoc_fs_close(struct usb_xfer *xfer) 1432 { 1433 atmegadci_device_done(xfer, USB_ERR_CANCELLED); 1434 } 1435 1436 static void 1437 atmegadci_device_isoc_fs_enter(struct usb_xfer *xfer) 1438 { 1439 struct atmegadci_softc *sc = ATMEGA_BUS2SC(xfer->xroot->bus); 1440 uint32_t temp; 1441 uint32_t nframes; 1442 1443 DPRINTFN(6, "xfer=%p next=%d nframes=%d\n", 1444 xfer, xfer->endpoint->isoc_next, xfer->nframes); 1445 1446 /* get the current frame index */ 1447 1448 nframes = 1449 (ATMEGA_READ_1(sc, ATMEGA_UDFNUMH) << 8) | 1450 (ATMEGA_READ_1(sc, ATMEGA_UDFNUML)); 1451 1452 nframes &= ATMEGA_FRAME_MASK; 1453 1454 /* 1455 * check if the frame index is within the window where the frames 1456 * will be inserted 1457 */ 1458 temp = (nframes - xfer->endpoint->isoc_next) & ATMEGA_FRAME_MASK; 1459 1460 if ((xfer->endpoint->is_synced == 0) || 1461 (temp < xfer->nframes)) { 1462 /* 1463 * If there is data underflow or the pipe queue is 1464 * empty we schedule the transfer a few frames ahead 1465 * of the current frame position. Else two isochronous 1466 * transfers might overlap. 1467 */ 1468 xfer->endpoint->isoc_next = (nframes + 3) & ATMEGA_FRAME_MASK; 1469 xfer->endpoint->is_synced = 1; 1470 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 1471 } 1472 /* 1473 * compute how many milliseconds the insertion is ahead of the 1474 * current frame position: 1475 */ 1476 temp = (xfer->endpoint->isoc_next - nframes) & ATMEGA_FRAME_MASK; 1477 1478 /* 1479 * pre-compute when the isochronous transfer will be finished: 1480 */ 1481 xfer->isoc_time_complete = 1482 usb_isoc_time_expand(&sc->sc_bus, nframes) + temp + 1483 xfer->nframes; 1484 1485 /* compute frame number for next insertion */ 1486 xfer->endpoint->isoc_next += xfer->nframes; 1487 1488 /* setup TDs */ 1489 atmegadci_setup_standard_chain(xfer); 1490 } 1491 1492 static void 1493 atmegadci_device_isoc_fs_start(struct usb_xfer *xfer) 1494 { 1495 /* start TD chain */ 1496 atmegadci_start_standard_chain(xfer); 1497 } 1498 1499 struct usb_pipe_methods atmegadci_device_isoc_fs_methods = 1500 { 1501 .open = atmegadci_device_isoc_fs_open, 1502 .close = atmegadci_device_isoc_fs_close, 1503 .enter = atmegadci_device_isoc_fs_enter, 1504 .start = atmegadci_device_isoc_fs_start, 1505 }; 1506 1507 /*------------------------------------------------------------------------* 1508 * at91dci root control support 1509 *------------------------------------------------------------------------* 1510 * Simulate a hardware HUB by handling all the necessary requests. 1511 *------------------------------------------------------------------------*/ 1512 1513 static const struct usb_device_descriptor atmegadci_devd = { 1514 .bLength = sizeof(struct usb_device_descriptor), 1515 .bDescriptorType = UDESC_DEVICE, 1516 .bcdUSB = {0x00, 0x02}, 1517 .bDeviceClass = UDCLASS_HUB, 1518 .bDeviceSubClass = UDSUBCLASS_HUB, 1519 .bDeviceProtocol = UDPROTO_FSHUB, 1520 .bMaxPacketSize = 64, 1521 .bcdDevice = {0x00, 0x01}, 1522 .iManufacturer = 1, 1523 .iProduct = 2, 1524 .bNumConfigurations = 1, 1525 }; 1526 1527 static const struct atmegadci_config_desc atmegadci_confd = { 1528 .confd = { 1529 .bLength = sizeof(struct usb_config_descriptor), 1530 .bDescriptorType = UDESC_CONFIG, 1531 .wTotalLength[0] = sizeof(atmegadci_confd), 1532 .bNumInterface = 1, 1533 .bConfigurationValue = 1, 1534 .iConfiguration = 0, 1535 .bmAttributes = UC_SELF_POWERED, 1536 .bMaxPower = 0, 1537 }, 1538 .ifcd = { 1539 .bLength = sizeof(struct usb_interface_descriptor), 1540 .bDescriptorType = UDESC_INTERFACE, 1541 .bNumEndpoints = 1, 1542 .bInterfaceClass = UICLASS_HUB, 1543 .bInterfaceSubClass = UISUBCLASS_HUB, 1544 .bInterfaceProtocol = 0, 1545 }, 1546 .endpd = { 1547 .bLength = sizeof(struct usb_endpoint_descriptor), 1548 .bDescriptorType = UDESC_ENDPOINT, 1549 .bEndpointAddress = (UE_DIR_IN | ATMEGA_INTR_ENDPT), 1550 .bmAttributes = UE_INTERRUPT, 1551 .wMaxPacketSize[0] = 8, 1552 .bInterval = 255, 1553 }, 1554 }; 1555 1556 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) } 1557 1558 static const struct usb_hub_descriptor_min atmegadci_hubd = { 1559 .bDescLength = sizeof(atmegadci_hubd), 1560 .bDescriptorType = UDESC_HUB, 1561 .bNbrPorts = 1, 1562 HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)), 1563 .bPwrOn2PwrGood = 50, 1564 .bHubContrCurrent = 0, 1565 .DeviceRemovable = {0}, /* port is removable */ 1566 }; 1567 1568 #define STRING_VENDOR \ 1569 "A\0T\0M\0E\0G\0A" 1570 1571 #define STRING_PRODUCT \ 1572 "D\0C\0I\0 \0R\0o\0o\0t\0 \0H\0U\0B" 1573 1574 USB_MAKE_STRING_DESC(STRING_VENDOR, atmegadci_vendor); 1575 USB_MAKE_STRING_DESC(STRING_PRODUCT, atmegadci_product); 1576 1577 static usb_error_t 1578 atmegadci_roothub_exec(struct usb_device *udev, 1579 struct usb_device_request *req, const void **pptr, uint16_t *plength) 1580 { 1581 struct atmegadci_softc *sc = ATMEGA_BUS2SC(udev->bus); 1582 const void *ptr; 1583 uint16_t len; 1584 uint16_t value; 1585 uint16_t index; 1586 uint8_t temp; 1587 usb_error_t err; 1588 1589 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1590 1591 /* buffer reset */ 1592 ptr = (const void *)&sc->sc_hub_temp; 1593 len = 0; 1594 err = 0; 1595 1596 value = UGETW(req->wValue); 1597 index = UGETW(req->wIndex); 1598 1599 /* demultiplex the control request */ 1600 1601 switch (req->bmRequestType) { 1602 case UT_READ_DEVICE: 1603 switch (req->bRequest) { 1604 case UR_GET_DESCRIPTOR: 1605 goto tr_handle_get_descriptor; 1606 case UR_GET_CONFIG: 1607 goto tr_handle_get_config; 1608 case UR_GET_STATUS: 1609 goto tr_handle_get_status; 1610 default: 1611 goto tr_stalled; 1612 } 1613 break; 1614 1615 case UT_WRITE_DEVICE: 1616 switch (req->bRequest) { 1617 case UR_SET_ADDRESS: 1618 goto tr_handle_set_address; 1619 case UR_SET_CONFIG: 1620 goto tr_handle_set_config; 1621 case UR_CLEAR_FEATURE: 1622 goto tr_valid; /* nop */ 1623 case UR_SET_DESCRIPTOR: 1624 goto tr_valid; /* nop */ 1625 case UR_SET_FEATURE: 1626 default: 1627 goto tr_stalled; 1628 } 1629 break; 1630 1631 case UT_WRITE_ENDPOINT: 1632 switch (req->bRequest) { 1633 case UR_CLEAR_FEATURE: 1634 switch (UGETW(req->wValue)) { 1635 case UF_ENDPOINT_HALT: 1636 goto tr_handle_clear_halt; 1637 case UF_DEVICE_REMOTE_WAKEUP: 1638 goto tr_handle_clear_wakeup; 1639 default: 1640 goto tr_stalled; 1641 } 1642 break; 1643 case UR_SET_FEATURE: 1644 switch (UGETW(req->wValue)) { 1645 case UF_ENDPOINT_HALT: 1646 goto tr_handle_set_halt; 1647 case UF_DEVICE_REMOTE_WAKEUP: 1648 goto tr_handle_set_wakeup; 1649 default: 1650 goto tr_stalled; 1651 } 1652 break; 1653 case UR_SYNCH_FRAME: 1654 goto tr_valid; /* nop */ 1655 default: 1656 goto tr_stalled; 1657 } 1658 break; 1659 1660 case UT_READ_ENDPOINT: 1661 switch (req->bRequest) { 1662 case UR_GET_STATUS: 1663 goto tr_handle_get_ep_status; 1664 default: 1665 goto tr_stalled; 1666 } 1667 break; 1668 1669 case UT_WRITE_INTERFACE: 1670 switch (req->bRequest) { 1671 case UR_SET_INTERFACE: 1672 goto tr_handle_set_interface; 1673 case UR_CLEAR_FEATURE: 1674 goto tr_valid; /* nop */ 1675 case UR_SET_FEATURE: 1676 default: 1677 goto tr_stalled; 1678 } 1679 break; 1680 1681 case UT_READ_INTERFACE: 1682 switch (req->bRequest) { 1683 case UR_GET_INTERFACE: 1684 goto tr_handle_get_interface; 1685 case UR_GET_STATUS: 1686 goto tr_handle_get_iface_status; 1687 default: 1688 goto tr_stalled; 1689 } 1690 break; 1691 1692 case UT_WRITE_CLASS_INTERFACE: 1693 case UT_WRITE_VENDOR_INTERFACE: 1694 /* XXX forward */ 1695 break; 1696 1697 case UT_READ_CLASS_INTERFACE: 1698 case UT_READ_VENDOR_INTERFACE: 1699 /* XXX forward */ 1700 break; 1701 1702 case UT_WRITE_CLASS_DEVICE: 1703 switch (req->bRequest) { 1704 case UR_CLEAR_FEATURE: 1705 goto tr_valid; 1706 case UR_SET_DESCRIPTOR: 1707 case UR_SET_FEATURE: 1708 break; 1709 default: 1710 goto tr_stalled; 1711 } 1712 break; 1713 1714 case UT_WRITE_CLASS_OTHER: 1715 switch (req->bRequest) { 1716 case UR_CLEAR_FEATURE: 1717 goto tr_handle_clear_port_feature; 1718 case UR_SET_FEATURE: 1719 goto tr_handle_set_port_feature; 1720 case UR_CLEAR_TT_BUFFER: 1721 case UR_RESET_TT: 1722 case UR_STOP_TT: 1723 goto tr_valid; 1724 1725 default: 1726 goto tr_stalled; 1727 } 1728 break; 1729 1730 case UT_READ_CLASS_OTHER: 1731 switch (req->bRequest) { 1732 case UR_GET_TT_STATE: 1733 goto tr_handle_get_tt_state; 1734 case UR_GET_STATUS: 1735 goto tr_handle_get_port_status; 1736 default: 1737 goto tr_stalled; 1738 } 1739 break; 1740 1741 case UT_READ_CLASS_DEVICE: 1742 switch (req->bRequest) { 1743 case UR_GET_DESCRIPTOR: 1744 goto tr_handle_get_class_descriptor; 1745 case UR_GET_STATUS: 1746 goto tr_handle_get_class_status; 1747 1748 default: 1749 goto tr_stalled; 1750 } 1751 break; 1752 default: 1753 goto tr_stalled; 1754 } 1755 goto tr_valid; 1756 1757 tr_handle_get_descriptor: 1758 switch (value >> 8) { 1759 case UDESC_DEVICE: 1760 if (value & 0xff) { 1761 goto tr_stalled; 1762 } 1763 len = sizeof(atmegadci_devd); 1764 ptr = (const void *)&atmegadci_devd; 1765 goto tr_valid; 1766 case UDESC_CONFIG: 1767 if (value & 0xff) { 1768 goto tr_stalled; 1769 } 1770 len = sizeof(atmegadci_confd); 1771 ptr = (const void *)&atmegadci_confd; 1772 goto tr_valid; 1773 case UDESC_STRING: 1774 switch (value & 0xff) { 1775 case 0: /* Language table */ 1776 len = sizeof(usb_string_lang_en); 1777 ptr = (const void *)&usb_string_lang_en; 1778 goto tr_valid; 1779 1780 case 1: /* Vendor */ 1781 len = sizeof(atmegadci_vendor); 1782 ptr = (const void *)&atmegadci_vendor; 1783 goto tr_valid; 1784 1785 case 2: /* Product */ 1786 len = sizeof(atmegadci_product); 1787 ptr = (const void *)&atmegadci_product; 1788 goto tr_valid; 1789 default: 1790 break; 1791 } 1792 break; 1793 default: 1794 goto tr_stalled; 1795 } 1796 goto tr_stalled; 1797 1798 tr_handle_get_config: 1799 len = 1; 1800 sc->sc_hub_temp.wValue[0] = sc->sc_conf; 1801 goto tr_valid; 1802 1803 tr_handle_get_status: 1804 len = 2; 1805 USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED); 1806 goto tr_valid; 1807 1808 tr_handle_set_address: 1809 if (value & 0xFF00) { 1810 goto tr_stalled; 1811 } 1812 sc->sc_rt_addr = value; 1813 goto tr_valid; 1814 1815 tr_handle_set_config: 1816 if (value >= 2) { 1817 goto tr_stalled; 1818 } 1819 sc->sc_conf = value; 1820 goto tr_valid; 1821 1822 tr_handle_get_interface: 1823 len = 1; 1824 sc->sc_hub_temp.wValue[0] = 0; 1825 goto tr_valid; 1826 1827 tr_handle_get_tt_state: 1828 tr_handle_get_class_status: 1829 tr_handle_get_iface_status: 1830 tr_handle_get_ep_status: 1831 len = 2; 1832 USETW(sc->sc_hub_temp.wValue, 0); 1833 goto tr_valid; 1834 1835 tr_handle_set_halt: 1836 tr_handle_set_interface: 1837 tr_handle_set_wakeup: 1838 tr_handle_clear_wakeup: 1839 tr_handle_clear_halt: 1840 goto tr_valid; 1841 1842 tr_handle_clear_port_feature: 1843 if (index != 1) { 1844 goto tr_stalled; 1845 } 1846 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index); 1847 1848 switch (value) { 1849 case UHF_PORT_SUSPEND: 1850 atmegadci_wakeup_peer(sc); 1851 break; 1852 1853 case UHF_PORT_ENABLE: 1854 sc->sc_flags.port_enabled = 0; 1855 break; 1856 1857 case UHF_PORT_TEST: 1858 case UHF_PORT_INDICATOR: 1859 case UHF_C_PORT_ENABLE: 1860 case UHF_C_PORT_OVER_CURRENT: 1861 case UHF_C_PORT_RESET: 1862 /* nops */ 1863 break; 1864 case UHF_PORT_POWER: 1865 sc->sc_flags.port_powered = 0; 1866 atmegadci_pull_down(sc); 1867 atmegadci_clocks_off(sc); 1868 break; 1869 case UHF_C_PORT_CONNECTION: 1870 /* clear connect change flag */ 1871 sc->sc_flags.change_connect = 0; 1872 1873 if (!sc->sc_flags.status_bus_reset) { 1874 /* we are not connected */ 1875 break; 1876 } 1877 1878 /* configure the control endpoint */ 1879 1880 /* select endpoint number */ 1881 ATMEGA_WRITE_1(sc, ATMEGA_UENUM, 0); 1882 1883 /* set endpoint reset */ 1884 ATMEGA_WRITE_1(sc, ATMEGA_UERST, ATMEGA_UERST_MASK(0)); 1885 1886 /* clear endpoint reset */ 1887 ATMEGA_WRITE_1(sc, ATMEGA_UERST, 0); 1888 1889 /* enable and stall endpoint */ 1890 ATMEGA_WRITE_1(sc, ATMEGA_UECONX, 1891 ATMEGA_UECONX_EPEN | 1892 ATMEGA_UECONX_STALLRQ); 1893 1894 /* one bank, 64-bytes wMaxPacket */ 1895 ATMEGA_WRITE_1(sc, ATMEGA_UECFG0X, 1896 ATMEGA_UECFG0X_EPTYPE0); 1897 ATMEGA_WRITE_1(sc, ATMEGA_UECFG1X, 1898 ATMEGA_UECFG1X_ALLOC | 1899 ATMEGA_UECFG1X_EPBK0 | 1900 ATMEGA_UECFG1X_EPSIZE(3)); 1901 1902 /* check valid config */ 1903 temp = ATMEGA_READ_1(sc, ATMEGA_UESTA0X); 1904 if (!(temp & ATMEGA_UESTA0X_CFGOK)) { 1905 device_printf(sc->sc_bus.bdev, 1906 "Chip rejected EP0 configuration\n"); 1907 } 1908 break; 1909 case UHF_C_PORT_SUSPEND: 1910 sc->sc_flags.change_suspend = 0; 1911 break; 1912 default: 1913 err = USB_ERR_IOERROR; 1914 goto done; 1915 } 1916 goto tr_valid; 1917 1918 tr_handle_set_port_feature: 1919 if (index != 1) { 1920 goto tr_stalled; 1921 } 1922 DPRINTFN(9, "UR_SET_PORT_FEATURE\n"); 1923 1924 switch (value) { 1925 case UHF_PORT_ENABLE: 1926 sc->sc_flags.port_enabled = 1; 1927 break; 1928 case UHF_PORT_SUSPEND: 1929 case UHF_PORT_RESET: 1930 case UHF_PORT_TEST: 1931 case UHF_PORT_INDICATOR: 1932 /* nops */ 1933 break; 1934 case UHF_PORT_POWER: 1935 sc->sc_flags.port_powered = 1; 1936 break; 1937 default: 1938 err = USB_ERR_IOERROR; 1939 goto done; 1940 } 1941 goto tr_valid; 1942 1943 tr_handle_get_port_status: 1944 1945 DPRINTFN(9, "UR_GET_PORT_STATUS\n"); 1946 1947 if (index != 1) { 1948 goto tr_stalled; 1949 } 1950 if (sc->sc_flags.status_vbus) { 1951 atmegadci_clocks_on(sc); 1952 atmegadci_pull_up(sc); 1953 } else { 1954 atmegadci_pull_down(sc); 1955 atmegadci_clocks_off(sc); 1956 } 1957 1958 /* Select FULL-speed and Device Side Mode */ 1959 1960 value = UPS_PORT_MODE_DEVICE; 1961 1962 if (sc->sc_flags.port_powered) { 1963 value |= UPS_PORT_POWER; 1964 } 1965 if (sc->sc_flags.port_enabled) { 1966 value |= UPS_PORT_ENABLED; 1967 } 1968 if (sc->sc_flags.status_vbus && 1969 sc->sc_flags.status_bus_reset) { 1970 value |= UPS_CURRENT_CONNECT_STATUS; 1971 } 1972 if (sc->sc_flags.status_suspend) { 1973 value |= UPS_SUSPEND; 1974 } 1975 USETW(sc->sc_hub_temp.ps.wPortStatus, value); 1976 1977 value = 0; 1978 1979 if (sc->sc_flags.change_connect) { 1980 value |= UPS_C_CONNECT_STATUS; 1981 } 1982 if (sc->sc_flags.change_suspend) { 1983 value |= UPS_C_SUSPEND; 1984 } 1985 USETW(sc->sc_hub_temp.ps.wPortChange, value); 1986 len = sizeof(sc->sc_hub_temp.ps); 1987 goto tr_valid; 1988 1989 tr_handle_get_class_descriptor: 1990 if (value & 0xFF) { 1991 goto tr_stalled; 1992 } 1993 ptr = (const void *)&atmegadci_hubd; 1994 len = sizeof(atmegadci_hubd); 1995 goto tr_valid; 1996 1997 tr_stalled: 1998 err = USB_ERR_STALLED; 1999 tr_valid: 2000 done: 2001 *plength = len; 2002 *pptr = ptr; 2003 return (err); 2004 } 2005 2006 static void 2007 atmegadci_xfer_setup(struct usb_setup_params *parm) 2008 { 2009 const struct usb_hw_ep_profile *pf; 2010 struct atmegadci_softc *sc; 2011 struct usb_xfer *xfer; 2012 void *last_obj; 2013 uint32_t ntd; 2014 uint32_t n; 2015 uint8_t ep_no; 2016 2017 sc = ATMEGA_BUS2SC(parm->udev->bus); 2018 xfer = parm->curr_xfer; 2019 2020 /* 2021 * NOTE: This driver does not use any of the parameters that 2022 * are computed from the following values. Just set some 2023 * reasonable dummies: 2024 */ 2025 parm->hc_max_packet_size = 0x500; 2026 parm->hc_max_packet_count = 1; 2027 parm->hc_max_frame_size = 0x500; 2028 2029 usbd_transfer_setup_sub(parm); 2030 2031 /* 2032 * compute maximum number of TDs 2033 */ 2034 if ((xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE) == UE_CONTROL) { 2035 2036 ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC 1 */ 2037 + 1 /* SYNC 2 */ ; 2038 } else { 2039 2040 ntd = xfer->nframes + 1 /* SYNC */ ; 2041 } 2042 2043 /* 2044 * check if "usbd_transfer_setup_sub" set an error 2045 */ 2046 if (parm->err) 2047 return; 2048 2049 /* 2050 * allocate transfer descriptors 2051 */ 2052 last_obj = NULL; 2053 2054 /* 2055 * get profile stuff 2056 */ 2057 ep_no = xfer->endpointno & UE_ADDR; 2058 atmegadci_get_hw_ep_profile(parm->udev, &pf, ep_no); 2059 2060 if (pf == NULL) { 2061 /* should not happen */ 2062 parm->err = USB_ERR_INVAL; 2063 return; 2064 } 2065 2066 /* align data */ 2067 parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1)); 2068 2069 for (n = 0; n != ntd; n++) { 2070 2071 struct atmegadci_td *td; 2072 2073 if (parm->buf) { 2074 2075 td = USB_ADD_BYTES(parm->buf, parm->size[0]); 2076 2077 /* init TD */ 2078 td->max_packet_size = xfer->max_packet_size; 2079 td->ep_no = ep_no; 2080 if (pf->support_multi_buffer) { 2081 td->support_multi_buffer = 1; 2082 } 2083 td->obj_next = last_obj; 2084 2085 last_obj = td; 2086 } 2087 parm->size[0] += sizeof(*td); 2088 } 2089 2090 xfer->td_start[0] = last_obj; 2091 } 2092 2093 static void 2094 atmegadci_xfer_unsetup(struct usb_xfer *xfer) 2095 { 2096 return; 2097 } 2098 2099 static void 2100 atmegadci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, 2101 struct usb_endpoint *ep) 2102 { 2103 struct atmegadci_softc *sc = ATMEGA_BUS2SC(udev->bus); 2104 2105 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d,%d)\n", 2106 ep, udev->address, 2107 edesc->bEndpointAddress, udev->flags.usb_mode, 2108 sc->sc_rt_addr, udev->device_index); 2109 2110 if (udev->device_index != sc->sc_rt_addr) { 2111 2112 if (udev->speed != USB_SPEED_FULL) { 2113 /* not supported */ 2114 return; 2115 } 2116 if ((edesc->bmAttributes & UE_XFERTYPE) == UE_ISOCHRONOUS) 2117 ep->methods = &atmegadci_device_isoc_fs_methods; 2118 else 2119 ep->methods = &atmegadci_device_non_isoc_methods; 2120 } 2121 } 2122 2123 static void 2124 atmegadci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) 2125 { 2126 struct atmegadci_softc *sc = ATMEGA_BUS2SC(bus); 2127 2128 switch (state) { 2129 case USB_HW_POWER_SUSPEND: 2130 atmegadci_suspend(sc); 2131 break; 2132 case USB_HW_POWER_SHUTDOWN: 2133 atmegadci_uninit(sc); 2134 break; 2135 case USB_HW_POWER_RESUME: 2136 atmegadci_resume(sc); 2137 break; 2138 default: 2139 break; 2140 } 2141 } 2142 2143 struct usb_bus_methods atmegadci_bus_methods = 2144 { 2145 .endpoint_init = &atmegadci_ep_init, 2146 .xfer_setup = &atmegadci_xfer_setup, 2147 .xfer_unsetup = &atmegadci_xfer_unsetup, 2148 .get_hw_ep_profile = &atmegadci_get_hw_ep_profile, 2149 .xfer_stall = &atmegadci_xfer_stall, 2150 .set_stall = &atmegadci_set_stall, 2151 .clear_stall = &atmegadci_clear_stall, 2152 .roothub_exec = &atmegadci_roothub_exec, 2153 .xfer_poll = &atmegadci_do_poll, 2154 .set_hw_power_sleep = &atmegadci_set_hw_power_sleep, 2155 }; 2156