1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2008 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 * Thanks to Mentor Graphics for providing a reference driver for this USB chip 29 * at their homepage. 30 */ 31 32 /* 33 * This file contains the driver for the Mentor Graphics Inventra USB 34 * 2.0 High Speed Dual-Role controller. 35 * 36 * NOTE: The current implementation only supports Device Side Mode! 37 */ 38 39 #include <dev/usb/usb.h> 40 #include <dev/usb/usb_mfunc.h> 41 #include <dev/usb/usb_error.h> 42 43 #define USB_DEBUG_VAR musbotgdebug 44 45 #include <dev/usb/usb_core.h> 46 #include <dev/usb/usb_debug.h> 47 #include <dev/usb/usb_busdma.h> 48 #include <dev/usb/usb_process.h> 49 #include <dev/usb/usb_transfer.h> 50 #include <dev/usb/usb_device.h> 51 #include <dev/usb/usb_hub.h> 52 #include <dev/usb/usb_util.h> 53 54 #include <dev/usb/usb_controller.h> 55 #include <dev/usb/usb_bus.h> 56 #include <dev/usb/controller/musb_otg.h> 57 58 #define MUSBOTG_INTR_ENDPT 1 59 60 #define MUSBOTG_BUS2SC(bus) \ 61 ((struct musbotg_softc *)(((uint8_t *)(bus)) - \ 62 USB_P2U(&(((struct musbotg_softc *)0)->sc_bus)))) 63 64 #define MUSBOTG_PC2SC(pc) \ 65 MUSBOTG_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus) 66 67 #if USB_DEBUG 68 static int musbotgdebug = 0; 69 70 SYSCTL_NODE(_hw_usb2, OID_AUTO, musbotg, CTLFLAG_RW, 0, "USB musbotg"); 71 SYSCTL_INT(_hw_usb2_musbotg, OID_AUTO, debug, CTLFLAG_RW, 72 &musbotgdebug, 0, "Debug level"); 73 #endif 74 75 /* prototypes */ 76 77 struct usb2_bus_methods musbotg_bus_methods; 78 struct usb2_pipe_methods musbotg_device_bulk_methods; 79 struct usb2_pipe_methods musbotg_device_ctrl_methods; 80 struct usb2_pipe_methods musbotg_device_intr_methods; 81 struct usb2_pipe_methods musbotg_device_isoc_methods; 82 83 static musbotg_cmd_t musbotg_setup_rx; 84 static musbotg_cmd_t musbotg_setup_data_rx; 85 static musbotg_cmd_t musbotg_setup_data_tx; 86 static musbotg_cmd_t musbotg_setup_status; 87 static musbotg_cmd_t musbotg_data_rx; 88 static musbotg_cmd_t musbotg_data_tx; 89 static void musbotg_device_done(struct usb2_xfer *, usb2_error_t); 90 static void musbotg_do_poll(struct usb2_bus *); 91 static void musbotg_standard_done(struct usb2_xfer *); 92 static void musbotg_interrupt_poll(struct musbotg_softc *); 93 static void musbotg_root_intr(struct musbotg_softc *); 94 95 /* 96 * Here is a configuration that the chip supports. 97 */ 98 static const struct usb2_hw_ep_profile musbotg_ep_profile[1] = { 99 100 [0] = { 101 .max_in_frame_size = 64,/* fixed */ 102 .max_out_frame_size = 64, /* fixed */ 103 .is_simplex = 1, 104 .support_control = 1, 105 } 106 }; 107 108 static void 109 musbotg_get_hw_ep_profile(struct usb2_device *udev, 110 const struct usb2_hw_ep_profile **ppf, uint8_t ep_addr) 111 { 112 struct musbotg_softc *sc; 113 114 sc = MUSBOTG_BUS2SC(udev->bus); 115 116 if (ep_addr == 0) { 117 /* control endpoint */ 118 *ppf = musbotg_ep_profile; 119 } else if (ep_addr <= sc->sc_ep_max) { 120 /* other endpoints */ 121 *ppf = sc->sc_hw_ep_profile + ep_addr; 122 } else { 123 *ppf = NULL; 124 } 125 } 126 127 static void 128 musbotg_clocks_on(struct musbotg_softc *sc) 129 { 130 if (sc->sc_flags.clocks_off && 131 sc->sc_flags.port_powered) { 132 133 DPRINTFN(4, "\n"); 134 135 if (sc->sc_clocks_on) { 136 (sc->sc_clocks_on) (sc->sc_clocks_arg); 137 } 138 sc->sc_flags.clocks_off = 0; 139 140 /* XXX enable Transceiver */ 141 } 142 } 143 144 static void 145 musbotg_clocks_off(struct musbotg_softc *sc) 146 { 147 if (!sc->sc_flags.clocks_off) { 148 149 DPRINTFN(4, "\n"); 150 151 /* XXX disable Transceiver */ 152 153 if (sc->sc_clocks_off) { 154 (sc->sc_clocks_off) (sc->sc_clocks_arg); 155 } 156 sc->sc_flags.clocks_off = 1; 157 } 158 } 159 160 static void 161 musbotg_pull_common(struct musbotg_softc *sc, uint8_t on) 162 { 163 uint8_t temp; 164 165 temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); 166 if (on) 167 temp |= MUSB2_MASK_SOFTC; 168 else 169 temp &= ~MUSB2_MASK_SOFTC; 170 171 MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); 172 } 173 174 static void 175 musbotg_pull_up(struct musbotg_softc *sc) 176 { 177 /* pullup D+, if possible */ 178 179 if (!sc->sc_flags.d_pulled_up && 180 sc->sc_flags.port_powered) { 181 sc->sc_flags.d_pulled_up = 1; 182 musbotg_pull_common(sc, 1); 183 } 184 } 185 186 static void 187 musbotg_pull_down(struct musbotg_softc *sc) 188 { 189 /* pulldown D+, if possible */ 190 191 if (sc->sc_flags.d_pulled_up) { 192 sc->sc_flags.d_pulled_up = 0; 193 musbotg_pull_common(sc, 0); 194 } 195 } 196 197 static void 198 musbotg_wakeup_peer(struct musbotg_softc *sc) 199 { 200 uint8_t temp; 201 202 if (!(sc->sc_flags.status_suspend)) { 203 return; 204 } 205 206 temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); 207 temp |= MUSB2_MASK_RESUME; 208 MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); 209 210 /* wait 8 milliseconds */ 211 /* Wait for reset to complete. */ 212 usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 125); 213 214 temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); 215 temp &= ~MUSB2_MASK_RESUME; 216 MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); 217 } 218 219 static void 220 musbotg_set_address(struct musbotg_softc *sc, uint8_t addr) 221 { 222 DPRINTFN(4, "addr=%d\n", addr); 223 addr &= 0x7F; 224 MUSB2_WRITE_1(sc, MUSB2_REG_FADDR, addr); 225 } 226 227 static uint8_t 228 musbotg_setup_rx(struct musbotg_td *td) 229 { 230 struct musbotg_softc *sc; 231 struct usb2_device_request req; 232 uint16_t count; 233 uint8_t csr; 234 235 /* get pointer to softc */ 236 sc = MUSBOTG_PC2SC(td->pc); 237 238 /* select endpoint 0 */ 239 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); 240 241 /* read out FIFO status */ 242 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 243 244 DPRINTFN(4, "csr=0x%02x\n", csr); 245 246 /* 247 * NOTE: If DATAEND is set we should not call the 248 * callback, hence the status stage is not complete. 249 */ 250 if (csr & MUSB2_MASK_CSR0L_DATAEND) { 251 /* do not stall at this point */ 252 td->did_stall = 1; 253 /* wait for interrupt */ 254 goto not_complete; 255 } 256 if (csr & MUSB2_MASK_CSR0L_SENTSTALL) { 257 /* clear SENTSTALL */ 258 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); 259 /* get latest status */ 260 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 261 /* update EP0 state */ 262 sc->sc_ep0_busy = 0; 263 } 264 if (csr & MUSB2_MASK_CSR0L_SETUPEND) { 265 /* clear SETUPEND */ 266 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 267 MUSB2_MASK_CSR0L_SETUPEND_CLR); 268 /* get latest status */ 269 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 270 /* update EP0 state */ 271 sc->sc_ep0_busy = 0; 272 } 273 if (sc->sc_ep0_busy) { 274 goto not_complete; 275 } 276 if (!(csr & MUSB2_MASK_CSR0L_RXPKTRDY)) { 277 goto not_complete; 278 } 279 /* clear did stall flag */ 280 td->did_stall = 0; 281 /* get the packet byte count */ 282 count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); 283 284 /* verify data length */ 285 if (count != td->remainder) { 286 DPRINTFN(0, "Invalid SETUP packet " 287 "length, %d bytes\n", count); 288 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 289 MUSB2_MASK_CSR0L_RXPKTRDY_CLR); 290 goto not_complete; 291 } 292 if (count != sizeof(req)) { 293 DPRINTFN(0, "Unsupported SETUP packet " 294 "length, %d bytes\n", count); 295 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 296 MUSB2_MASK_CSR0L_RXPKTRDY_CLR); 297 goto not_complete; 298 } 299 /* receive data */ 300 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 301 MUSB2_REG_EPFIFO(0), (void *)&req, sizeof(req)); 302 303 /* copy data into real buffer */ 304 usb2_copy_in(td->pc, 0, &req, sizeof(req)); 305 306 td->offset = sizeof(req); 307 td->remainder = 0; 308 309 /* set pending command */ 310 sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_RXPKTRDY_CLR; 311 312 /* we need set stall or dataend after this */ 313 sc->sc_ep0_busy = 1; 314 315 /* sneak peek the set address */ 316 if ((req.bmRequestType == UT_WRITE_DEVICE) && 317 (req.bRequest == UR_SET_ADDRESS)) { 318 sc->sc_dv_addr = req.wValue[0] & 0x7F; 319 } else { 320 sc->sc_dv_addr = 0xFF; 321 } 322 return (0); /* complete */ 323 324 not_complete: 325 /* abort any ongoing transfer */ 326 if (!td->did_stall) { 327 DPRINTFN(4, "stalling\n"); 328 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 329 MUSB2_MASK_CSR0L_SENDSTALL); 330 td->did_stall = 1; 331 } 332 return (1); /* not complete */ 333 } 334 335 /* Control endpoint only data handling functions (RX/TX/SYNC) */ 336 337 static uint8_t 338 musbotg_setup_data_rx(struct musbotg_td *td) 339 { 340 struct usb2_page_search buf_res; 341 struct musbotg_softc *sc; 342 uint16_t count; 343 uint8_t csr; 344 uint8_t got_short; 345 346 /* get pointer to softc */ 347 sc = MUSBOTG_PC2SC(td->pc); 348 349 /* select endpoint 0 */ 350 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); 351 352 /* check if a command is pending */ 353 if (sc->sc_ep0_cmd) { 354 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); 355 sc->sc_ep0_cmd = 0; 356 } 357 /* read out FIFO status */ 358 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 359 360 DPRINTFN(4, "csr=0x%02x\n", csr); 361 362 got_short = 0; 363 364 if (csr & (MUSB2_MASK_CSR0L_SETUPEND | 365 MUSB2_MASK_CSR0L_SENTSTALL)) { 366 if (td->remainder == 0) { 367 /* 368 * We are actually complete and have 369 * received the next SETUP 370 */ 371 DPRINTFN(4, "faking complete\n"); 372 return (0); /* complete */ 373 } 374 /* 375 * USB Host Aborted the transfer. 376 */ 377 td->error = 1; 378 return (0); /* complete */ 379 } 380 if (!(csr & MUSB2_MASK_CSR0L_RXPKTRDY)) { 381 return (1); /* not complete */ 382 } 383 /* get the packet byte count */ 384 count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); 385 386 /* verify the packet byte count */ 387 if (count != td->max_frame_size) { 388 if (count < td->max_frame_size) { 389 /* we have a short packet */ 390 td->short_pkt = 1; 391 got_short = 1; 392 } else { 393 /* invalid USB packet */ 394 td->error = 1; 395 return (0); /* we are complete */ 396 } 397 } 398 /* verify the packet byte count */ 399 if (count > td->remainder) { 400 /* invalid USB packet */ 401 td->error = 1; 402 return (0); /* we are complete */ 403 } 404 while (count > 0) { 405 uint32_t temp; 406 407 usb2_get_page(td->pc, td->offset, &buf_res); 408 409 /* get correct length */ 410 if (buf_res.length > count) { 411 buf_res.length = count; 412 } 413 /* check for unaligned memory address */ 414 if (USB_P2U(buf_res.buffer) & 3) { 415 416 temp = count & ~3; 417 418 if (temp) { 419 /* receive data 4 bytes at a time */ 420 bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 421 MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, 422 temp / 4); 423 } 424 temp = count & 3; 425 if (temp) { 426 /* receive data 1 byte at a time */ 427 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 428 MUSB2_REG_EPFIFO(0), 429 (void *)(&sc->sc_bounce_buf[count / 4]), temp); 430 } 431 usb2_copy_in(td->pc, td->offset, 432 sc->sc_bounce_buf, count); 433 434 /* update offset and remainder */ 435 td->offset += count; 436 td->remainder -= count; 437 break; 438 } 439 /* check if we can optimise */ 440 if (buf_res.length >= 4) { 441 442 /* receive data 4 bytes at a time */ 443 bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 444 MUSB2_REG_EPFIFO(0), buf_res.buffer, 445 buf_res.length / 4); 446 447 temp = buf_res.length & ~3; 448 449 /* update counters */ 450 count -= temp; 451 td->offset += temp; 452 td->remainder -= temp; 453 continue; 454 } 455 /* receive data */ 456 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 457 MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); 458 459 /* update counters */ 460 count -= buf_res.length; 461 td->offset += buf_res.length; 462 td->remainder -= buf_res.length; 463 } 464 465 /* check if we are complete */ 466 if ((td->remainder == 0) || got_short) { 467 if (td->short_pkt) { 468 /* we are complete */ 469 sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_RXPKTRDY_CLR; 470 return (0); 471 } 472 /* else need to receive a zero length packet */ 473 } 474 /* write command - need more data */ 475 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 476 MUSB2_MASK_CSR0L_RXPKTRDY_CLR); 477 return (1); /* not complete */ 478 } 479 480 static uint8_t 481 musbotg_setup_data_tx(struct musbotg_td *td) 482 { 483 struct usb2_page_search buf_res; 484 struct musbotg_softc *sc; 485 uint16_t count; 486 uint8_t csr; 487 488 /* get pointer to softc */ 489 sc = MUSBOTG_PC2SC(td->pc); 490 491 /* select endpoint 0 */ 492 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); 493 494 /* check if a command is pending */ 495 if (sc->sc_ep0_cmd) { 496 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); 497 sc->sc_ep0_cmd = 0; 498 } 499 /* read out FIFO status */ 500 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 501 502 DPRINTFN(4, "csr=0x%02x\n", csr); 503 504 if (csr & (MUSB2_MASK_CSR0L_SETUPEND | 505 MUSB2_MASK_CSR0L_SENTSTALL)) { 506 /* 507 * The current transfer was aborted 508 * by the USB Host 509 */ 510 td->error = 1; 511 return (0); /* complete */ 512 } 513 if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) { 514 return (1); /* not complete */ 515 } 516 count = td->max_frame_size; 517 if (td->remainder < count) { 518 /* we have a short packet */ 519 td->short_pkt = 1; 520 count = td->remainder; 521 } 522 while (count > 0) { 523 uint32_t temp; 524 525 usb2_get_page(td->pc, td->offset, &buf_res); 526 527 /* get correct length */ 528 if (buf_res.length > count) { 529 buf_res.length = count; 530 } 531 /* check for unaligned memory address */ 532 if (USB_P2U(buf_res.buffer) & 3) { 533 534 usb2_copy_out(td->pc, td->offset, 535 sc->sc_bounce_buf, count); 536 537 temp = count & ~3; 538 539 if (temp) { 540 /* transmit data 4 bytes at a time */ 541 bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 542 MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, 543 temp / 4); 544 } 545 temp = count & 3; 546 if (temp) { 547 /* receive data 1 byte at a time */ 548 bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 549 MUSB2_REG_EPFIFO(0), 550 ((void *)&sc->sc_bounce_buf[count / 4]), temp); 551 } 552 /* update offset and remainder */ 553 td->offset += count; 554 td->remainder -= count; 555 break; 556 } 557 /* check if we can optimise */ 558 if (buf_res.length >= 4) { 559 560 /* transmit data 4 bytes at a time */ 561 bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 562 MUSB2_REG_EPFIFO(0), buf_res.buffer, 563 buf_res.length / 4); 564 565 temp = buf_res.length & ~3; 566 567 /* update counters */ 568 count -= temp; 569 td->offset += temp; 570 td->remainder -= temp; 571 continue; 572 } 573 /* transmit data */ 574 bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 575 MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); 576 577 /* update counters */ 578 count -= buf_res.length; 579 td->offset += buf_res.length; 580 td->remainder -= buf_res.length; 581 } 582 583 /* check remainder */ 584 if (td->remainder == 0) { 585 if (td->short_pkt) { 586 sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_TXPKTRDY; 587 return (0); /* complete */ 588 } 589 /* else we need to transmit a short packet */ 590 } 591 /* write command */ 592 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 593 MUSB2_MASK_CSR0L_TXPKTRDY); 594 595 return (1); /* not complete */ 596 } 597 598 static uint8_t 599 musbotg_setup_status(struct musbotg_td *td) 600 { 601 struct musbotg_softc *sc; 602 uint8_t csr; 603 604 /* get pointer to softc */ 605 sc = MUSBOTG_PC2SC(td->pc); 606 607 /* select endpoint 0 */ 608 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); 609 610 if (sc->sc_ep0_busy) { 611 sc->sc_ep0_busy = 0; 612 sc->sc_ep0_cmd |= MUSB2_MASK_CSR0L_DATAEND; 613 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); 614 sc->sc_ep0_cmd = 0; 615 } 616 /* read out FIFO status */ 617 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 618 619 DPRINTFN(4, "csr=0x%02x\n", csr); 620 621 if (csr & MUSB2_MASK_CSR0L_DATAEND) { 622 /* wait for interrupt */ 623 return (1); /* not complete */ 624 } 625 if (sc->sc_dv_addr != 0xFF) { 626 /* write function address */ 627 musbotg_set_address(sc, sc->sc_dv_addr); 628 } 629 return (0); /* complete */ 630 } 631 632 static uint8_t 633 musbotg_data_rx(struct musbotg_td *td) 634 { 635 struct usb2_page_search buf_res; 636 struct musbotg_softc *sc; 637 uint16_t count; 638 uint8_t csr; 639 uint8_t to; 640 uint8_t got_short; 641 642 to = 8; /* don't loop forever! */ 643 got_short = 0; 644 645 /* get pointer to softc */ 646 sc = MUSBOTG_PC2SC(td->pc); 647 648 /* select endpoint */ 649 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->ep_no); 650 651 repeat: 652 /* read out FIFO status */ 653 csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); 654 655 DPRINTFN(4, "csr=0x%02x\n", csr); 656 657 /* clear overrun */ 658 if (csr & MUSB2_MASK_CSRL_RXOVERRUN) { 659 /* make sure we don't clear "RXPKTRDY" */ 660 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 661 MUSB2_MASK_CSRL_RXPKTRDY); 662 } 663 /* check status */ 664 if (!(csr & MUSB2_MASK_CSRL_RXPKTRDY)) { 665 return (1); /* not complete */ 666 } 667 /* get the packet byte count */ 668 count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); 669 670 DPRINTFN(4, "count=0x%04x\n", count); 671 672 /* 673 * Check for short or invalid packet: 674 */ 675 if (count != td->max_frame_size) { 676 if (count < td->max_frame_size) { 677 /* we have a short packet */ 678 td->short_pkt = 1; 679 got_short = 1; 680 } else { 681 /* invalid USB packet */ 682 td->error = 1; 683 return (0); /* we are complete */ 684 } 685 } 686 /* verify the packet byte count */ 687 if (count > td->remainder) { 688 /* invalid USB packet */ 689 td->error = 1; 690 return (0); /* we are complete */ 691 } 692 while (count > 0) { 693 uint32_t temp; 694 695 usb2_get_page(td->pc, td->offset, &buf_res); 696 697 /* get correct length */ 698 if (buf_res.length > count) { 699 buf_res.length = count; 700 } 701 /* check for unaligned memory address */ 702 if (USB_P2U(buf_res.buffer) & 3) { 703 704 temp = count & ~3; 705 706 if (temp) { 707 /* receive data 4 bytes at a time */ 708 bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 709 MUSB2_REG_EPFIFO(td->ep_no), sc->sc_bounce_buf, 710 temp / 4); 711 } 712 temp = count & 3; 713 if (temp) { 714 /* receive data 1 byte at a time */ 715 bus_space_read_multi_1(sc->sc_io_tag, 716 sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->ep_no), 717 ((void *)&sc->sc_bounce_buf[count / 4]), temp); 718 } 719 usb2_copy_in(td->pc, td->offset, 720 sc->sc_bounce_buf, count); 721 722 /* update offset and remainder */ 723 td->offset += count; 724 td->remainder -= count; 725 break; 726 } 727 /* check if we can optimise */ 728 if (buf_res.length >= 4) { 729 730 /* receive data 4 bytes at a time */ 731 bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 732 MUSB2_REG_EPFIFO(td->ep_no), buf_res.buffer, 733 buf_res.length / 4); 734 735 temp = buf_res.length & ~3; 736 737 /* update counters */ 738 count -= temp; 739 td->offset += temp; 740 td->remainder -= temp; 741 continue; 742 } 743 /* receive data */ 744 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 745 MUSB2_REG_EPFIFO(td->ep_no), buf_res.buffer, 746 buf_res.length); 747 748 /* update counters */ 749 count -= buf_res.length; 750 td->offset += buf_res.length; 751 td->remainder -= buf_res.length; 752 } 753 754 /* clear status bits */ 755 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); 756 757 /* check if we are complete */ 758 if ((td->remainder == 0) || got_short) { 759 if (td->short_pkt) { 760 /* we are complete */ 761 return (0); 762 } 763 /* else need to receive a zero length packet */ 764 } 765 if (--to) { 766 goto repeat; 767 } 768 return (1); /* not complete */ 769 } 770 771 static uint8_t 772 musbotg_data_tx(struct musbotg_td *td) 773 { 774 struct usb2_page_search buf_res; 775 struct musbotg_softc *sc; 776 uint16_t count; 777 uint8_t csr; 778 uint8_t to; 779 780 to = 8; /* don't loop forever! */ 781 782 /* get pointer to softc */ 783 sc = MUSBOTG_PC2SC(td->pc); 784 785 /* select endpoint */ 786 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->ep_no); 787 788 repeat: 789 790 /* read out FIFO status */ 791 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 792 793 DPRINTFN(4, "csr=0x%02x\n", csr); 794 795 if (csr & (MUSB2_MASK_CSRL_TXINCOMP | 796 MUSB2_MASK_CSRL_TXUNDERRUN)) { 797 /* clear status bits */ 798 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); 799 } 800 if (csr & MUSB2_MASK_CSRL_TXPKTRDY) { 801 return (1); /* not complete */ 802 } 803 /* check for short packet */ 804 count = td->max_frame_size; 805 if (td->remainder < count) { 806 /* we have a short packet */ 807 td->short_pkt = 1; 808 count = td->remainder; 809 } 810 while (count > 0) { 811 uint32_t temp; 812 813 usb2_get_page(td->pc, td->offset, &buf_res); 814 815 /* get correct length */ 816 if (buf_res.length > count) { 817 buf_res.length = count; 818 } 819 /* check for unaligned memory address */ 820 if (USB_P2U(buf_res.buffer) & 3) { 821 822 usb2_copy_out(td->pc, td->offset, 823 sc->sc_bounce_buf, count); 824 825 temp = count & ~3; 826 827 if (temp) { 828 /* transmit data 4 bytes at a time */ 829 bus_space_write_multi_4(sc->sc_io_tag, 830 sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->ep_no), 831 sc->sc_bounce_buf, temp / 4); 832 } 833 temp = count & 3; 834 if (temp) { 835 /* receive data 1 byte at a time */ 836 bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 837 MUSB2_REG_EPFIFO(td->ep_no), 838 ((void *)&sc->sc_bounce_buf[count / 4]), temp); 839 } 840 /* update offset and remainder */ 841 td->offset += count; 842 td->remainder -= count; 843 break; 844 } 845 /* check if we can optimise */ 846 if (buf_res.length >= 4) { 847 848 /* transmit data 4 bytes at a time */ 849 bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, 850 MUSB2_REG_EPFIFO(td->ep_no), buf_res.buffer, 851 buf_res.length / 4); 852 853 temp = buf_res.length & ~3; 854 855 /* update counters */ 856 count -= temp; 857 td->offset += temp; 858 td->remainder -= temp; 859 continue; 860 } 861 /* transmit data */ 862 bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 863 MUSB2_REG_EPFIFO(td->ep_no), buf_res.buffer, 864 buf_res.length); 865 866 /* update counters */ 867 count -= buf_res.length; 868 td->offset += buf_res.length; 869 td->remainder -= buf_res.length; 870 } 871 872 /* write command */ 873 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 874 MUSB2_MASK_CSRL_TXPKTRDY); 875 876 /* check remainder */ 877 if (td->remainder == 0) { 878 if (td->short_pkt) { 879 return (0); /* complete */ 880 } 881 /* else we need to transmit a short packet */ 882 } 883 if (--to) { 884 goto repeat; 885 } 886 return (1); /* not complete */ 887 } 888 889 static uint8_t 890 musbotg_xfer_do_fifo(struct usb2_xfer *xfer) 891 { 892 struct musbotg_softc *sc; 893 struct musbotg_td *td; 894 895 DPRINTFN(8, "\n"); 896 897 td = xfer->td_transfer_cache; 898 while (1) { 899 if ((td->func) (td)) { 900 /* operation in progress */ 901 break; 902 } 903 if (((void *)td) == xfer->td_transfer_last) { 904 goto done; 905 } 906 if (td->error) { 907 goto done; 908 } else if (td->remainder > 0) { 909 /* 910 * We had a short transfer. If there is no alternate 911 * next, stop processing ! 912 */ 913 if (!td->alt_next) { 914 goto done; 915 } 916 } 917 /* 918 * Fetch the next transfer descriptor and transfer 919 * some flags to the next transfer descriptor 920 */ 921 td = td->obj_next; 922 xfer->td_transfer_cache = td; 923 } 924 return (1); /* not complete */ 925 926 done: 927 sc = MUSBOTG_BUS2SC(xfer->xroot->bus); 928 929 /* compute all actual lengths */ 930 931 musbotg_standard_done(xfer); 932 933 return (0); /* complete */ 934 } 935 936 static void 937 musbotg_interrupt_poll(struct musbotg_softc *sc) 938 { 939 struct usb2_xfer *xfer; 940 941 repeat: 942 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 943 if (!musbotg_xfer_do_fifo(xfer)) { 944 /* queue has been modified */ 945 goto repeat; 946 } 947 } 948 } 949 950 void 951 musbotg_vbus_interrupt(struct musbotg_softc *sc, uint8_t is_on) 952 { 953 DPRINTFN(4, "vbus = %u\n", is_on); 954 955 USB_BUS_LOCK(&sc->sc_bus); 956 if (is_on) { 957 if (!sc->sc_flags.status_vbus) { 958 sc->sc_flags.status_vbus = 1; 959 960 /* complete root HUB interrupt endpoint */ 961 musbotg_root_intr(sc); 962 } 963 } else { 964 if (sc->sc_flags.status_vbus) { 965 sc->sc_flags.status_vbus = 0; 966 sc->sc_flags.status_bus_reset = 0; 967 sc->sc_flags.status_suspend = 0; 968 sc->sc_flags.change_suspend = 0; 969 sc->sc_flags.change_connect = 1; 970 971 /* complete root HUB interrupt endpoint */ 972 musbotg_root_intr(sc); 973 } 974 } 975 976 USB_BUS_UNLOCK(&sc->sc_bus); 977 } 978 979 void 980 musbotg_interrupt(struct musbotg_softc *sc) 981 { 982 uint16_t rx_status; 983 uint16_t tx_status; 984 uint8_t usb_status; 985 uint8_t temp; 986 uint8_t to = 2; 987 988 USB_BUS_LOCK(&sc->sc_bus); 989 990 repeat: 991 992 /* read all interrupt registers */ 993 usb_status = MUSB2_READ_1(sc, MUSB2_REG_INTUSB); 994 995 /* read all FIFO interrupts */ 996 rx_status = MUSB2_READ_2(sc, MUSB2_REG_INTRX); 997 tx_status = MUSB2_READ_2(sc, MUSB2_REG_INTTX); 998 999 /* check for any bus state change interrupts */ 1000 1001 if (usb_status & (MUSB2_MASK_IRESET | 1002 MUSB2_MASK_IRESUME | MUSB2_MASK_ISUSP)) { 1003 1004 DPRINTFN(4, "real bus interrupt 0x%08x\n", usb_status); 1005 1006 if (usb_status & MUSB2_MASK_IRESET) { 1007 1008 /* set correct state */ 1009 sc->sc_flags.status_bus_reset = 1; 1010 sc->sc_flags.status_suspend = 0; 1011 sc->sc_flags.change_suspend = 0; 1012 sc->sc_flags.change_connect = 1; 1013 1014 /* determine line speed */ 1015 temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); 1016 if (temp & MUSB2_MASK_HSMODE) 1017 sc->sc_flags.status_high_speed = 1; 1018 else 1019 sc->sc_flags.status_high_speed = 0; 1020 1021 /* 1022 * After reset all interrupts are on and we need to 1023 * turn them off! 1024 */ 1025 temp = MUSB2_MASK_IRESET; 1026 /* disable resume interrupt */ 1027 temp &= ~MUSB2_MASK_IRESUME; 1028 /* enable suspend interrupt */ 1029 temp |= MUSB2_MASK_ISUSP; 1030 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); 1031 /* disable TX and RX interrupts */ 1032 MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); 1033 MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); 1034 } 1035 /* 1036 * If RXRSM and RXSUSP is set at the same time we interpret 1037 * that like RESUME. Resume is set when there is at least 3 1038 * milliseconds of inactivity on the USB BUS. 1039 */ 1040 if (usb_status & MUSB2_MASK_IRESUME) { 1041 if (sc->sc_flags.status_suspend) { 1042 sc->sc_flags.status_suspend = 0; 1043 sc->sc_flags.change_suspend = 1; 1044 1045 temp = MUSB2_READ_1(sc, MUSB2_REG_INTUSBE); 1046 /* disable resume interrupt */ 1047 temp &= ~MUSB2_MASK_IRESUME; 1048 /* enable suspend interrupt */ 1049 temp |= MUSB2_MASK_ISUSP; 1050 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); 1051 } 1052 } else if (usb_status & MUSB2_MASK_ISUSP) { 1053 if (!sc->sc_flags.status_suspend) { 1054 sc->sc_flags.status_suspend = 1; 1055 sc->sc_flags.change_suspend = 1; 1056 1057 temp = MUSB2_READ_1(sc, MUSB2_REG_INTUSBE); 1058 /* disable suspend interrupt */ 1059 temp &= ~MUSB2_MASK_ISUSP; 1060 /* enable resume interrupt */ 1061 temp |= MUSB2_MASK_IRESUME; 1062 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); 1063 } 1064 } 1065 /* complete root HUB interrupt endpoint */ 1066 musbotg_root_intr(sc); 1067 } 1068 /* check for any endpoint interrupts */ 1069 1070 if (rx_status || tx_status) { 1071 DPRINTFN(4, "real endpoint interrupt " 1072 "rx=0x%04x, tx=0x%04x\n", rx_status, tx_status); 1073 } 1074 /* poll one time regardless of FIFO status */ 1075 1076 musbotg_interrupt_poll(sc); 1077 1078 if (--to) 1079 goto repeat; 1080 1081 USB_BUS_UNLOCK(&sc->sc_bus); 1082 } 1083 1084 static void 1085 musbotg_setup_standard_chain_sub(struct musbotg_std_temp *temp) 1086 { 1087 struct musbotg_td *td; 1088 1089 /* get current Transfer Descriptor */ 1090 td = temp->td_next; 1091 temp->td = td; 1092 1093 /* prepare for next TD */ 1094 temp->td_next = td->obj_next; 1095 1096 /* fill out the Transfer Descriptor */ 1097 td->func = temp->func; 1098 td->pc = temp->pc; 1099 td->offset = temp->offset; 1100 td->remainder = temp->len; 1101 td->error = 0; 1102 td->did_stall = 0; 1103 td->short_pkt = temp->short_pkt; 1104 td->alt_next = temp->setup_alt_next; 1105 } 1106 1107 static void 1108 musbotg_setup_standard_chain(struct usb2_xfer *xfer) 1109 { 1110 struct musbotg_std_temp temp; 1111 struct musbotg_softc *sc; 1112 struct musbotg_td *td; 1113 uint32_t x; 1114 uint8_t ep_no; 1115 1116 DPRINTFN(8, "addr=%d endpt=%d sumlen=%d speed=%d\n", 1117 xfer->address, UE_GET_ADDR(xfer->endpoint), 1118 xfer->sumlen, usb2_get_speed(xfer->xroot->udev)); 1119 1120 temp.max_frame_size = xfer->max_frame_size; 1121 1122 td = xfer->td_start[0]; 1123 xfer->td_transfer_first = td; 1124 xfer->td_transfer_cache = td; 1125 1126 /* setup temp */ 1127 1128 temp.td = NULL; 1129 temp.td_next = xfer->td_start[0]; 1130 temp.offset = 0; 1131 temp.setup_alt_next = xfer->flags_int.short_frames_ok; 1132 1133 sc = MUSBOTG_BUS2SC(xfer->xroot->bus); 1134 ep_no = (xfer->endpoint & UE_ADDR); 1135 1136 /* check if we should prepend a setup message */ 1137 1138 if (xfer->flags_int.control_xfr) { 1139 if (xfer->flags_int.control_hdr) { 1140 1141 temp.func = &musbotg_setup_rx; 1142 temp.len = xfer->frlengths[0]; 1143 temp.pc = xfer->frbuffers + 0; 1144 temp.short_pkt = temp.len ? 1 : 0; 1145 1146 musbotg_setup_standard_chain_sub(&temp); 1147 } 1148 x = 1; 1149 } else { 1150 x = 0; 1151 } 1152 1153 if (x != xfer->nframes) { 1154 if (xfer->endpoint & UE_DIR_IN) { 1155 if (xfer->flags_int.control_xfr) 1156 temp.func = &musbotg_setup_data_tx; 1157 else 1158 temp.func = &musbotg_data_tx; 1159 } else { 1160 if (xfer->flags_int.control_xfr) 1161 temp.func = &musbotg_setup_data_rx; 1162 else 1163 temp.func = &musbotg_data_rx; 1164 } 1165 1166 /* setup "pc" pointer */ 1167 temp.pc = xfer->frbuffers + x; 1168 } 1169 while (x != xfer->nframes) { 1170 1171 /* DATA0 / DATA1 message */ 1172 1173 temp.len = xfer->frlengths[x]; 1174 1175 x++; 1176 1177 if (x == xfer->nframes) { 1178 if (xfer->flags_int.control_xfr) { 1179 if (xfer->flags_int.control_act) { 1180 temp.setup_alt_next = 0; 1181 } 1182 } else { 1183 temp.setup_alt_next = 0; 1184 } 1185 } 1186 if (temp.len == 0) { 1187 1188 /* make sure that we send an USB packet */ 1189 1190 temp.short_pkt = 0; 1191 1192 } else { 1193 1194 /* regular data transfer */ 1195 1196 temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1; 1197 } 1198 1199 musbotg_setup_standard_chain_sub(&temp); 1200 1201 if (xfer->flags_int.isochronous_xfr) { 1202 temp.offset += temp.len; 1203 } else { 1204 /* get next Page Cache pointer */ 1205 temp.pc = xfer->frbuffers + x; 1206 } 1207 } 1208 1209 /* check for control transfer */ 1210 if (xfer->flags_int.control_xfr) { 1211 1212 /* always setup a valid "pc" pointer for status and sync */ 1213 temp.pc = xfer->frbuffers + 0; 1214 temp.len = 0; 1215 temp.short_pkt = 0; 1216 temp.setup_alt_next = 0; 1217 1218 /* check if we should append a status stage */ 1219 if (!xfer->flags_int.control_act) { 1220 /* 1221 * Send a DATA1 message and invert the current 1222 * endpoint direction. 1223 */ 1224 temp.func = &musbotg_setup_status; 1225 musbotg_setup_standard_chain_sub(&temp); 1226 } 1227 } 1228 /* must have at least one frame! */ 1229 td = temp.td; 1230 xfer->td_transfer_last = td; 1231 } 1232 1233 static void 1234 musbotg_timeout(void *arg) 1235 { 1236 struct usb2_xfer *xfer = arg; 1237 1238 DPRINTFN(1, "xfer=%p\n", xfer); 1239 1240 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1241 1242 /* transfer is transferred */ 1243 musbotg_device_done(xfer, USB_ERR_TIMEOUT); 1244 } 1245 1246 static void 1247 musbotg_ep_int_set(struct usb2_xfer *xfer, uint8_t on) 1248 { 1249 struct musbotg_softc *sc = MUSBOTG_BUS2SC(xfer->xroot->bus); 1250 uint16_t temp; 1251 uint8_t ep_no = xfer->endpoint & UE_ADDR; 1252 1253 /* 1254 * Only enable the endpoint interrupt when we are 1255 * actually waiting for data, hence we are dealing 1256 * with level triggered interrupts ! 1257 */ 1258 if (ep_no == 0) { 1259 temp = MUSB2_READ_2(sc, MUSB2_REG_INTTXE); 1260 if (on) 1261 temp |= MUSB2_MASK_EPINT(0); 1262 else 1263 temp &= ~MUSB2_MASK_EPINT(0); 1264 1265 MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, temp); 1266 } else { 1267 if (USB_GET_DATA_ISREAD(xfer)) { 1268 temp = MUSB2_READ_2(sc, MUSB2_REG_INTRXE); 1269 if (on) 1270 temp |= MUSB2_MASK_EPINT(ep_no); 1271 else 1272 temp &= ~MUSB2_MASK_EPINT(ep_no); 1273 MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, temp); 1274 1275 } else { 1276 temp = MUSB2_READ_2(sc, MUSB2_REG_INTTXE); 1277 if (on) 1278 temp |= MUSB2_MASK_EPINT(ep_no); 1279 else 1280 temp &= ~MUSB2_MASK_EPINT(ep_no); 1281 MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, temp); 1282 } 1283 } 1284 } 1285 1286 static void 1287 musbotg_start_standard_chain(struct usb2_xfer *xfer) 1288 { 1289 DPRINTFN(8, "\n"); 1290 1291 /* poll one time */ 1292 if (musbotg_xfer_do_fifo(xfer)) { 1293 1294 musbotg_ep_int_set(xfer, 1); 1295 1296 DPRINTFN(14, "enabled interrupts on endpoint\n"); 1297 1298 /* put transfer on interrupt queue */ 1299 usb2_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 1300 1301 /* start timeout, if any */ 1302 if (xfer->timeout != 0) { 1303 usb2_transfer_timeout_ms(xfer, 1304 &musbotg_timeout, xfer->timeout); 1305 } 1306 } 1307 } 1308 1309 static void 1310 musbotg_root_intr(struct musbotg_softc *sc) 1311 { 1312 DPRINTFN(8, "\n"); 1313 1314 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1315 1316 /* set port bit */ 1317 sc->sc_hub_idata[0] = 0x02; /* we only have one port */ 1318 1319 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 1320 sizeof(sc->sc_hub_idata)); 1321 } 1322 1323 static usb2_error_t 1324 musbotg_standard_done_sub(struct usb2_xfer *xfer) 1325 { 1326 struct musbotg_td *td; 1327 uint32_t len; 1328 uint8_t error; 1329 1330 DPRINTFN(8, "\n"); 1331 1332 td = xfer->td_transfer_cache; 1333 1334 do { 1335 len = td->remainder; 1336 1337 if (xfer->aframes != xfer->nframes) { 1338 /* 1339 * Verify the length and subtract 1340 * the remainder from "frlengths[]": 1341 */ 1342 if (len > xfer->frlengths[xfer->aframes]) { 1343 td->error = 1; 1344 } else { 1345 xfer->frlengths[xfer->aframes] -= len; 1346 } 1347 } 1348 /* Check for transfer error */ 1349 if (td->error) { 1350 /* the transfer is finished */ 1351 error = 1; 1352 td = NULL; 1353 break; 1354 } 1355 /* Check for short transfer */ 1356 if (len > 0) { 1357 if (xfer->flags_int.short_frames_ok) { 1358 /* follow alt next */ 1359 if (td->alt_next) { 1360 td = td->obj_next; 1361 } else { 1362 td = NULL; 1363 } 1364 } else { 1365 /* the transfer is finished */ 1366 td = NULL; 1367 } 1368 error = 0; 1369 break; 1370 } 1371 td = td->obj_next; 1372 1373 /* this USB frame is complete */ 1374 error = 0; 1375 break; 1376 1377 } while (0); 1378 1379 /* update transfer cache */ 1380 1381 xfer->td_transfer_cache = td; 1382 1383 return (error ? 1384 USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION); 1385 } 1386 1387 static void 1388 musbotg_standard_done(struct usb2_xfer *xfer) 1389 { 1390 usb2_error_t err = 0; 1391 1392 DPRINTFN(12, "xfer=%p pipe=%p transfer done\n", 1393 xfer, xfer->pipe); 1394 1395 /* reset scanner */ 1396 1397 xfer->td_transfer_cache = xfer->td_transfer_first; 1398 1399 if (xfer->flags_int.control_xfr) { 1400 1401 if (xfer->flags_int.control_hdr) { 1402 1403 err = musbotg_standard_done_sub(xfer); 1404 } 1405 xfer->aframes = 1; 1406 1407 if (xfer->td_transfer_cache == NULL) { 1408 goto done; 1409 } 1410 } 1411 while (xfer->aframes != xfer->nframes) { 1412 1413 err = musbotg_standard_done_sub(xfer); 1414 xfer->aframes++; 1415 1416 if (xfer->td_transfer_cache == NULL) { 1417 goto done; 1418 } 1419 } 1420 1421 if (xfer->flags_int.control_xfr && 1422 !xfer->flags_int.control_act) { 1423 1424 err = musbotg_standard_done_sub(xfer); 1425 } 1426 done: 1427 musbotg_device_done(xfer, err); 1428 } 1429 1430 /*------------------------------------------------------------------------* 1431 * musbotg_device_done 1432 * 1433 * NOTE: this function can be called more than one time on the 1434 * same USB transfer! 1435 *------------------------------------------------------------------------*/ 1436 static void 1437 musbotg_device_done(struct usb2_xfer *xfer, usb2_error_t error) 1438 { 1439 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1440 1441 DPRINTFN(2, "xfer=%p, pipe=%p, error=%d\n", 1442 xfer, xfer->pipe, error); 1443 1444 if (xfer->flags_int.usb2_mode == USB_MODE_DEVICE) { 1445 1446 musbotg_ep_int_set(xfer, 0); 1447 1448 DPRINTFN(14, "disabled interrupts on endpoint\n"); 1449 } 1450 /* dequeue transfer and start next transfer */ 1451 usb2_transfer_done(xfer, error); 1452 } 1453 1454 static void 1455 musbotg_set_stall(struct usb2_device *udev, struct usb2_xfer *xfer, 1456 struct usb2_pipe *pipe) 1457 { 1458 struct musbotg_softc *sc; 1459 uint8_t ep_no; 1460 1461 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1462 1463 DPRINTFN(4, "pipe=%p\n", pipe); 1464 1465 if (xfer) { 1466 /* cancel any ongoing transfers */ 1467 musbotg_device_done(xfer, USB_ERR_STALLED); 1468 } 1469 /* set FORCESTALL */ 1470 sc = MUSBOTG_BUS2SC(udev->bus); 1471 1472 ep_no = (pipe->edesc->bEndpointAddress & UE_ADDR); 1473 1474 /* select endpoint */ 1475 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, ep_no); 1476 1477 if (pipe->edesc->bEndpointAddress & UE_DIR_IN) { 1478 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 1479 MUSB2_MASK_CSRL_TXSENDSTALL); 1480 } else { 1481 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 1482 MUSB2_MASK_CSRL_RXSENDSTALL); 1483 } 1484 } 1485 1486 static void 1487 musbotg_clear_stall_sub(struct musbotg_softc *sc, uint16_t wMaxPacket, 1488 uint8_t ep_no, uint8_t ep_type, uint8_t ep_dir) 1489 { 1490 uint16_t mps; 1491 uint16_t temp; 1492 uint8_t csr; 1493 1494 if (ep_type == UE_CONTROL) { 1495 /* clearing stall is not needed */ 1496 return; 1497 } 1498 /* select endpoint */ 1499 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, ep_no); 1500 1501 /* compute max frame size */ 1502 mps = wMaxPacket & 0x7FF; 1503 switch ((wMaxPacket >> 11) & 3) { 1504 case 1: 1505 mps *= 2; 1506 break; 1507 case 2: 1508 mps *= 3; 1509 break; 1510 default: 1511 break; 1512 } 1513 1514 if (ep_dir == UE_DIR_IN) { 1515 1516 temp = 0; 1517 1518 /* Configure endpoint */ 1519 switch (ep_type) { 1520 case UE_INTERRUPT: 1521 MUSB2_WRITE_1(sc, MUSB2_REG_TXMAXP, wMaxPacket); 1522 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, 1523 MUSB2_MASK_CSRH_TXMODE | temp); 1524 break; 1525 case UE_ISOCHRONOUS: 1526 MUSB2_WRITE_1(sc, MUSB2_REG_TXMAXP, wMaxPacket); 1527 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, 1528 MUSB2_MASK_CSRH_TXMODE | 1529 MUSB2_MASK_CSRH_TXISO | temp); 1530 break; 1531 case UE_BULK: 1532 MUSB2_WRITE_1(sc, MUSB2_REG_TXMAXP, wMaxPacket); 1533 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, 1534 MUSB2_MASK_CSRH_TXMODE | temp); 1535 break; 1536 default: 1537 break; 1538 } 1539 1540 /* Need to flush twice in case of double bufring */ 1541 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 1542 if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { 1543 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 1544 MUSB2_MASK_CSRL_TXFFLUSH); 1545 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 1546 if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { 1547 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 1548 MUSB2_MASK_CSRL_TXFFLUSH); 1549 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 1550 } 1551 } 1552 /* reset data toggle */ 1553 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 1554 MUSB2_MASK_CSRL_TXDT_CLR); 1555 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); 1556 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 1557 1558 /* set double/single buffering */ 1559 temp = MUSB2_READ_2(sc, MUSB2_REG_TXDBDIS); 1560 if (mps <= (sc->sc_hw_ep_profile[ep_no]. 1561 max_in_frame_size / 2)) { 1562 /* double buffer */ 1563 temp &= ~(1 << ep_no); 1564 } else { 1565 /* single buffer */ 1566 temp |= (1 << ep_no); 1567 } 1568 MUSB2_WRITE_2(sc, MUSB2_REG_TXDBDIS, temp); 1569 1570 /* clear sent stall */ 1571 if (csr & MUSB2_MASK_CSRL_TXSENTSTALL) { 1572 MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); 1573 csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); 1574 } 1575 } else { 1576 1577 temp = 0; 1578 1579 /* Configure endpoint */ 1580 switch (ep_type) { 1581 case UE_INTERRUPT: 1582 MUSB2_WRITE_1(sc, MUSB2_REG_RXMAXP, wMaxPacket); 1583 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, 1584 MUSB2_MASK_CSRH_RXNYET | temp); 1585 break; 1586 case UE_ISOCHRONOUS: 1587 MUSB2_WRITE_1(sc, MUSB2_REG_RXMAXP, wMaxPacket); 1588 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, 1589 MUSB2_MASK_CSRH_RXNYET | 1590 MUSB2_MASK_CSRH_RXISO | temp); 1591 break; 1592 case UE_BULK: 1593 MUSB2_WRITE_1(sc, MUSB2_REG_RXMAXP, wMaxPacket); 1594 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, temp); 1595 break; 1596 default: 1597 break; 1598 } 1599 1600 /* Need to flush twice in case of double bufring */ 1601 csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); 1602 if (csr & MUSB2_MASK_CSRL_RXPKTRDY) { 1603 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 1604 MUSB2_MASK_CSRL_RXFFLUSH); 1605 csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); 1606 if (csr & MUSB2_MASK_CSRL_RXPKTRDY) { 1607 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 1608 MUSB2_MASK_CSRL_RXFFLUSH); 1609 csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); 1610 } 1611 } 1612 /* reset data toggle */ 1613 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 1614 MUSB2_MASK_CSRL_RXDT_CLR); 1615 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); 1616 csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); 1617 1618 /* set double/single buffering */ 1619 temp = MUSB2_READ_2(sc, MUSB2_REG_RXDBDIS); 1620 if (mps <= (sc->sc_hw_ep_profile[ep_no]. 1621 max_out_frame_size / 2)) { 1622 /* double buffer */ 1623 temp &= ~(1 << ep_no); 1624 } else { 1625 /* single buffer */ 1626 temp |= (1 << ep_no); 1627 } 1628 MUSB2_WRITE_2(sc, MUSB2_REG_RXDBDIS, temp); 1629 1630 /* clear sent stall */ 1631 if (csr & MUSB2_MASK_CSRL_RXSENTSTALL) { 1632 MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); 1633 } 1634 } 1635 } 1636 1637 static void 1638 musbotg_clear_stall(struct usb2_device *udev, struct usb2_pipe *pipe) 1639 { 1640 struct musbotg_softc *sc; 1641 struct usb2_endpoint_descriptor *ed; 1642 1643 DPRINTFN(4, "pipe=%p\n", pipe); 1644 1645 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1646 1647 /* check mode */ 1648 if (udev->flags.usb2_mode != USB_MODE_DEVICE) { 1649 /* not supported */ 1650 return; 1651 } 1652 /* get softc */ 1653 sc = MUSBOTG_BUS2SC(udev->bus); 1654 1655 /* get endpoint descriptor */ 1656 ed = pipe->edesc; 1657 1658 /* reset endpoint */ 1659 musbotg_clear_stall_sub(sc, 1660 UGETW(ed->wMaxPacketSize), 1661 (ed->bEndpointAddress & UE_ADDR), 1662 (ed->bmAttributes & UE_XFERTYPE), 1663 (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT))); 1664 } 1665 1666 usb2_error_t 1667 musbotg_init(struct musbotg_softc *sc) 1668 { 1669 struct usb2_hw_ep_profile *pf; 1670 uint8_t nrx; 1671 uint8_t ntx; 1672 uint8_t temp; 1673 uint8_t fsize; 1674 uint8_t frx; 1675 uint8_t ftx; 1676 1677 DPRINTFN(1, "start\n"); 1678 1679 /* set up the bus structure */ 1680 sc->sc_bus.usbrev = USB_REV_2_0; 1681 sc->sc_bus.methods = &musbotg_bus_methods; 1682 1683 USB_BUS_LOCK(&sc->sc_bus); 1684 1685 /* turn on clocks */ 1686 1687 if (sc->sc_clocks_on) { 1688 (sc->sc_clocks_on) (sc->sc_clocks_arg); 1689 } 1690 /* wait a little for things to stabilise */ 1691 usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000); 1692 1693 /* disable all interrupts */ 1694 1695 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 0); 1696 MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); 1697 MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); 1698 1699 /* disable pullup */ 1700 1701 musbotg_pull_common(sc, 0); 1702 1703 /* wait a little bit (10ms) */ 1704 usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); 1705 1706 /* disable double packet buffering */ 1707 MUSB2_WRITE_2(sc, MUSB2_REG_RXDBDIS, 0xFFFF); 1708 MUSB2_WRITE_2(sc, MUSB2_REG_TXDBDIS, 0xFFFF); 1709 1710 /* enable HighSpeed and ISO Update flags */ 1711 1712 MUSB2_WRITE_1(sc, MUSB2_REG_POWER, 1713 MUSB2_MASK_HSENAB | MUSB2_MASK_ISOUPD); 1714 1715 /* clear Session bit, if set */ 1716 1717 temp = MUSB2_READ_1(sc, MUSB2_REG_DEVCTL); 1718 temp &= ~MUSB2_MASK_SESS; 1719 MUSB2_WRITE_1(sc, MUSB2_REG_DEVCTL, temp); 1720 1721 DPRINTF("DEVCTL=0x%02x\n", temp); 1722 1723 /* disable testmode */ 1724 1725 MUSB2_WRITE_1(sc, MUSB2_REG_TESTMODE, 0); 1726 1727 /* set default value */ 1728 1729 MUSB2_WRITE_1(sc, MUSB2_REG_MISC, 0); 1730 1731 /* select endpoint index 0 */ 1732 1733 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); 1734 1735 /* read out number of endpoints */ 1736 1737 nrx = 1738 (MUSB2_READ_1(sc, MUSB2_REG_EPINFO) / 16); 1739 1740 ntx = 1741 (MUSB2_READ_1(sc, MUSB2_REG_EPINFO) % 16); 1742 1743 /* these numbers exclude the control endpoint */ 1744 1745 DPRINTFN(2, "RX/TX endpoints: %u/%u\n", nrx, ntx); 1746 1747 sc->sc_ep_max = (nrx > ntx) ? nrx : ntx; 1748 if (sc->sc_ep_max == 0) { 1749 DPRINTFN(2, "ERROR: Looks like the clocks are off!\n"); 1750 } 1751 /* read out configuration data */ 1752 1753 sc->sc_conf_data = MUSB2_READ_1(sc, MUSB2_REG_CONFDATA); 1754 1755 DPRINTFN(2, "Config Data: 0x%02x\n", 1756 sc->sc_conf_data); 1757 1758 DPRINTFN(2, "HW version: 0x%04x\n", 1759 MUSB2_READ_1(sc, MUSB2_REG_HWVERS)); 1760 1761 /* initialise endpoint profiles */ 1762 1763 for (temp = 1; temp <= sc->sc_ep_max; temp++) { 1764 pf = sc->sc_hw_ep_profile + temp; 1765 1766 /* select endpoint */ 1767 MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, temp); 1768 1769 fsize = MUSB2_READ_1(sc, MUSB2_REG_FSIZE); 1770 frx = (fsize & MUSB2_MASK_RX_FSIZE) / 16;; 1771 ftx = (fsize & MUSB2_MASK_TX_FSIZE); 1772 1773 DPRINTF("Endpoint %u FIFO size: IN=%u, OUT=%u\n", 1774 temp, pf->max_in_frame_size, 1775 pf->max_out_frame_size); 1776 1777 if (frx && ftx && (temp <= nrx) && (temp <= ntx)) { 1778 pf->max_in_frame_size = 1 << ftx; 1779 pf->max_out_frame_size = 1 << frx; 1780 pf->is_simplex = 0; /* duplex */ 1781 pf->support_multi_buffer = 1; 1782 pf->support_bulk = 1; 1783 pf->support_interrupt = 1; 1784 pf->support_isochronous = 1; 1785 pf->support_in = 1; 1786 pf->support_out = 1; 1787 } else if (frx && (temp <= nrx)) { 1788 pf->max_out_frame_size = 1 << frx; 1789 pf->is_simplex = 1; /* simplex */ 1790 pf->support_multi_buffer = 1; 1791 pf->support_bulk = 1; 1792 pf->support_interrupt = 1; 1793 pf->support_isochronous = 1; 1794 pf->support_out = 1; 1795 } else if (ftx && (temp <= ntx)) { 1796 pf->max_in_frame_size = 1 << ftx; 1797 pf->is_simplex = 1; /* simplex */ 1798 pf->support_multi_buffer = 1; 1799 pf->support_bulk = 1; 1800 pf->support_interrupt = 1; 1801 pf->support_isochronous = 1; 1802 pf->support_in = 1; 1803 } 1804 } 1805 1806 /* turn on default interrupts */ 1807 1808 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 1809 MUSB2_MASK_IRESET); 1810 1811 musbotg_clocks_off(sc); 1812 1813 USB_BUS_UNLOCK(&sc->sc_bus); 1814 1815 /* catch any lost interrupts */ 1816 1817 musbotg_do_poll(&sc->sc_bus); 1818 1819 return (0); /* success */ 1820 } 1821 1822 void 1823 musbotg_uninit(struct musbotg_softc *sc) 1824 { 1825 USB_BUS_LOCK(&sc->sc_bus); 1826 1827 /* disable all interrupts */ 1828 MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 0); 1829 MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); 1830 MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); 1831 1832 sc->sc_flags.port_powered = 0; 1833 sc->sc_flags.status_vbus = 0; 1834 sc->sc_flags.status_bus_reset = 0; 1835 sc->sc_flags.status_suspend = 0; 1836 sc->sc_flags.change_suspend = 0; 1837 sc->sc_flags.change_connect = 1; 1838 1839 musbotg_pull_down(sc); 1840 musbotg_clocks_off(sc); 1841 USB_BUS_UNLOCK(&sc->sc_bus); 1842 } 1843 1844 void 1845 musbotg_suspend(struct musbotg_softc *sc) 1846 { 1847 return; 1848 } 1849 1850 void 1851 musbotg_resume(struct musbotg_softc *sc) 1852 { 1853 return; 1854 } 1855 1856 static void 1857 musbotg_do_poll(struct usb2_bus *bus) 1858 { 1859 struct musbotg_softc *sc = MUSBOTG_BUS2SC(bus); 1860 1861 USB_BUS_LOCK(&sc->sc_bus); 1862 musbotg_interrupt_poll(sc); 1863 USB_BUS_UNLOCK(&sc->sc_bus); 1864 } 1865 1866 /*------------------------------------------------------------------------* 1867 * musbotg bulk support 1868 *------------------------------------------------------------------------*/ 1869 static void 1870 musbotg_device_bulk_open(struct usb2_xfer *xfer) 1871 { 1872 return; 1873 } 1874 1875 static void 1876 musbotg_device_bulk_close(struct usb2_xfer *xfer) 1877 { 1878 musbotg_device_done(xfer, USB_ERR_CANCELLED); 1879 } 1880 1881 static void 1882 musbotg_device_bulk_enter(struct usb2_xfer *xfer) 1883 { 1884 return; 1885 } 1886 1887 static void 1888 musbotg_device_bulk_start(struct usb2_xfer *xfer) 1889 { 1890 /* setup TDs */ 1891 musbotg_setup_standard_chain(xfer); 1892 musbotg_start_standard_chain(xfer); 1893 } 1894 1895 struct usb2_pipe_methods musbotg_device_bulk_methods = 1896 { 1897 .open = musbotg_device_bulk_open, 1898 .close = musbotg_device_bulk_close, 1899 .enter = musbotg_device_bulk_enter, 1900 .start = musbotg_device_bulk_start, 1901 }; 1902 1903 /*------------------------------------------------------------------------* 1904 * musbotg control support 1905 *------------------------------------------------------------------------*/ 1906 static void 1907 musbotg_device_ctrl_open(struct usb2_xfer *xfer) 1908 { 1909 return; 1910 } 1911 1912 static void 1913 musbotg_device_ctrl_close(struct usb2_xfer *xfer) 1914 { 1915 musbotg_device_done(xfer, USB_ERR_CANCELLED); 1916 } 1917 1918 static void 1919 musbotg_device_ctrl_enter(struct usb2_xfer *xfer) 1920 { 1921 return; 1922 } 1923 1924 static void 1925 musbotg_device_ctrl_start(struct usb2_xfer *xfer) 1926 { 1927 /* setup TDs */ 1928 musbotg_setup_standard_chain(xfer); 1929 musbotg_start_standard_chain(xfer); 1930 } 1931 1932 struct usb2_pipe_methods musbotg_device_ctrl_methods = 1933 { 1934 .open = musbotg_device_ctrl_open, 1935 .close = musbotg_device_ctrl_close, 1936 .enter = musbotg_device_ctrl_enter, 1937 .start = musbotg_device_ctrl_start, 1938 }; 1939 1940 /*------------------------------------------------------------------------* 1941 * musbotg interrupt support 1942 *------------------------------------------------------------------------*/ 1943 static void 1944 musbotg_device_intr_open(struct usb2_xfer *xfer) 1945 { 1946 return; 1947 } 1948 1949 static void 1950 musbotg_device_intr_close(struct usb2_xfer *xfer) 1951 { 1952 musbotg_device_done(xfer, USB_ERR_CANCELLED); 1953 } 1954 1955 static void 1956 musbotg_device_intr_enter(struct usb2_xfer *xfer) 1957 { 1958 return; 1959 } 1960 1961 static void 1962 musbotg_device_intr_start(struct usb2_xfer *xfer) 1963 { 1964 /* setup TDs */ 1965 musbotg_setup_standard_chain(xfer); 1966 musbotg_start_standard_chain(xfer); 1967 } 1968 1969 struct usb2_pipe_methods musbotg_device_intr_methods = 1970 { 1971 .open = musbotg_device_intr_open, 1972 .close = musbotg_device_intr_close, 1973 .enter = musbotg_device_intr_enter, 1974 .start = musbotg_device_intr_start, 1975 }; 1976 1977 /*------------------------------------------------------------------------* 1978 * musbotg full speed isochronous support 1979 *------------------------------------------------------------------------*/ 1980 static void 1981 musbotg_device_isoc_open(struct usb2_xfer *xfer) 1982 { 1983 return; 1984 } 1985 1986 static void 1987 musbotg_device_isoc_close(struct usb2_xfer *xfer) 1988 { 1989 musbotg_device_done(xfer, USB_ERR_CANCELLED); 1990 } 1991 1992 static void 1993 musbotg_device_isoc_enter(struct usb2_xfer *xfer) 1994 { 1995 struct musbotg_softc *sc = MUSBOTG_BUS2SC(xfer->xroot->bus); 1996 uint32_t temp; 1997 uint32_t nframes; 1998 uint32_t fs_frames; 1999 2000 DPRINTFN(5, "xfer=%p next=%d nframes=%d\n", 2001 xfer, xfer->pipe->isoc_next, xfer->nframes); 2002 2003 /* get the current frame index */ 2004 2005 nframes = MUSB2_READ_2(sc, MUSB2_REG_FRAME); 2006 2007 /* 2008 * check if the frame index is within the window where the frames 2009 * will be inserted 2010 */ 2011 temp = (nframes - xfer->pipe->isoc_next) & MUSB2_MASK_FRAME; 2012 2013 if (usb2_get_speed(xfer->xroot->udev) == USB_SPEED_HIGH) { 2014 fs_frames = (xfer->nframes + 7) / 8; 2015 } else { 2016 fs_frames = xfer->nframes; 2017 } 2018 2019 if ((xfer->pipe->is_synced == 0) || 2020 (temp < fs_frames)) { 2021 /* 2022 * If there is data underflow or the pipe queue is 2023 * empty we schedule the transfer a few frames ahead 2024 * of the current frame position. Else two isochronous 2025 * transfers might overlap. 2026 */ 2027 xfer->pipe->isoc_next = (nframes + 3) & MUSB2_MASK_FRAME; 2028 xfer->pipe->is_synced = 1; 2029 DPRINTFN(2, "start next=%d\n", xfer->pipe->isoc_next); 2030 } 2031 /* 2032 * compute how many milliseconds the insertion is ahead of the 2033 * current frame position: 2034 */ 2035 temp = (xfer->pipe->isoc_next - nframes) & MUSB2_MASK_FRAME; 2036 2037 /* 2038 * pre-compute when the isochronous transfer will be finished: 2039 */ 2040 xfer->isoc_time_complete = 2041 usb2_isoc_time_expand(&sc->sc_bus, nframes) + temp + 2042 fs_frames; 2043 2044 /* compute frame number for next insertion */ 2045 xfer->pipe->isoc_next += fs_frames; 2046 2047 /* setup TDs */ 2048 musbotg_setup_standard_chain(xfer); 2049 } 2050 2051 static void 2052 musbotg_device_isoc_start(struct usb2_xfer *xfer) 2053 { 2054 /* start TD chain */ 2055 musbotg_start_standard_chain(xfer); 2056 } 2057 2058 struct usb2_pipe_methods musbotg_device_isoc_methods = 2059 { 2060 .open = musbotg_device_isoc_open, 2061 .close = musbotg_device_isoc_close, 2062 .enter = musbotg_device_isoc_enter, 2063 .start = musbotg_device_isoc_start, 2064 }; 2065 2066 /*------------------------------------------------------------------------* 2067 * musbotg root control support 2068 *------------------------------------------------------------------------* 2069 * Simulate a hardware HUB by handling all the necessary requests. 2070 *------------------------------------------------------------------------*/ 2071 2072 static const struct usb2_device_descriptor musbotg_devd = { 2073 .bLength = sizeof(struct usb2_device_descriptor), 2074 .bDescriptorType = UDESC_DEVICE, 2075 .bcdUSB = {0x00, 0x02}, 2076 .bDeviceClass = UDCLASS_HUB, 2077 .bDeviceSubClass = UDSUBCLASS_HUB, 2078 .bDeviceProtocol = UDPROTO_HSHUBSTT, 2079 .bMaxPacketSize = 64, 2080 .bcdDevice = {0x00, 0x01}, 2081 .iManufacturer = 1, 2082 .iProduct = 2, 2083 .bNumConfigurations = 1, 2084 }; 2085 2086 static const struct usb2_device_qualifier musbotg_odevd = { 2087 .bLength = sizeof(struct usb2_device_qualifier), 2088 .bDescriptorType = UDESC_DEVICE_QUALIFIER, 2089 .bcdUSB = {0x00, 0x02}, 2090 .bDeviceClass = UDCLASS_HUB, 2091 .bDeviceSubClass = UDSUBCLASS_HUB, 2092 .bDeviceProtocol = UDPROTO_FSHUB, 2093 .bMaxPacketSize0 = 0, 2094 .bNumConfigurations = 0, 2095 }; 2096 2097 static const struct musbotg_config_desc musbotg_confd = { 2098 .confd = { 2099 .bLength = sizeof(struct usb2_config_descriptor), 2100 .bDescriptorType = UDESC_CONFIG, 2101 .wTotalLength[0] = sizeof(musbotg_confd), 2102 .bNumInterface = 1, 2103 .bConfigurationValue = 1, 2104 .iConfiguration = 0, 2105 .bmAttributes = UC_SELF_POWERED, 2106 .bMaxPower = 0, 2107 }, 2108 .ifcd = { 2109 .bLength = sizeof(struct usb2_interface_descriptor), 2110 .bDescriptorType = UDESC_INTERFACE, 2111 .bNumEndpoints = 1, 2112 .bInterfaceClass = UICLASS_HUB, 2113 .bInterfaceSubClass = UISUBCLASS_HUB, 2114 .bInterfaceProtocol = UIPROTO_HSHUBSTT, 2115 }, 2116 .endpd = { 2117 .bLength = sizeof(struct usb2_endpoint_descriptor), 2118 .bDescriptorType = UDESC_ENDPOINT, 2119 .bEndpointAddress = (UE_DIR_IN | MUSBOTG_INTR_ENDPT), 2120 .bmAttributes = UE_INTERRUPT, 2121 .wMaxPacketSize[0] = 8, 2122 .bInterval = 255, 2123 }, 2124 }; 2125 2126 static const struct usb2_hub_descriptor_min musbotg_hubd = { 2127 .bDescLength = sizeof(musbotg_hubd), 2128 .bDescriptorType = UDESC_HUB, 2129 .bNbrPorts = 1, 2130 .wHubCharacteristics[0] = 2131 (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL) & 0xFF, 2132 .wHubCharacteristics[1] = 2133 (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL) >> 16, 2134 .bPwrOn2PwrGood = 50, 2135 .bHubContrCurrent = 0, 2136 .DeviceRemovable = {0}, /* port is removable */ 2137 }; 2138 2139 #define STRING_LANG \ 2140 0x09, 0x04, /* American English */ 2141 2142 #define STRING_VENDOR \ 2143 'M', 0, 'e', 0, 'n', 0, 't', 0, 'o', 0, 'r', 0, ' ', 0, \ 2144 'G', 0, 'r', 0, 'a', 0, 'p', 0, 'h', 0, 'i', 0, 'c', 0, 's', 0 2145 2146 #define STRING_PRODUCT \ 2147 'O', 0, 'T', 0, 'G', 0, ' ', 0, 'R', 0, \ 2148 'o', 0, 'o', 0, 't', 0, ' ', 0, 'H', 0, \ 2149 'U', 0, 'B', 0, 2150 2151 USB_MAKE_STRING_DESC(STRING_LANG, musbotg_langtab); 2152 USB_MAKE_STRING_DESC(STRING_VENDOR, musbotg_vendor); 2153 USB_MAKE_STRING_DESC(STRING_PRODUCT, musbotg_product); 2154 2155 static void 2156 musbotg_roothub_exec(struct usb2_bus *bus) 2157 { 2158 struct musbotg_softc *sc = MUSBOTG_BUS2SC(bus); 2159 struct usb2_sw_transfer *std = &sc->sc_bus.roothub_req; 2160 uint16_t value; 2161 uint16_t index; 2162 2163 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 2164 2165 /* buffer reset */ 2166 std->ptr = USB_ADD_BYTES(&sc->sc_hub_temp, 0); 2167 std->len = 0; 2168 2169 value = UGETW(std->req.wValue); 2170 index = UGETW(std->req.wIndex); 2171 2172 /* demultiplex the control request */ 2173 2174 switch (std->req.bmRequestType) { 2175 case UT_READ_DEVICE: 2176 switch (std->req.bRequest) { 2177 case UR_GET_DESCRIPTOR: 2178 goto tr_handle_get_descriptor; 2179 case UR_GET_CONFIG: 2180 goto tr_handle_get_config; 2181 case UR_GET_STATUS: 2182 goto tr_handle_get_status; 2183 default: 2184 goto tr_stalled; 2185 } 2186 break; 2187 2188 case UT_WRITE_DEVICE: 2189 switch (std->req.bRequest) { 2190 case UR_SET_ADDRESS: 2191 goto tr_handle_set_address; 2192 case UR_SET_CONFIG: 2193 goto tr_handle_set_config; 2194 case UR_CLEAR_FEATURE: 2195 goto tr_valid; /* nop */ 2196 case UR_SET_DESCRIPTOR: 2197 goto tr_valid; /* nop */ 2198 case UR_SET_FEATURE: 2199 default: 2200 goto tr_stalled; 2201 } 2202 break; 2203 2204 case UT_WRITE_ENDPOINT: 2205 switch (std->req.bRequest) { 2206 case UR_CLEAR_FEATURE: 2207 switch (UGETW(std->req.wValue)) { 2208 case UF_ENDPOINT_HALT: 2209 goto tr_handle_clear_halt; 2210 case UF_DEVICE_REMOTE_WAKEUP: 2211 goto tr_handle_clear_wakeup; 2212 default: 2213 goto tr_stalled; 2214 } 2215 break; 2216 case UR_SET_FEATURE: 2217 switch (UGETW(std->req.wValue)) { 2218 case UF_ENDPOINT_HALT: 2219 goto tr_handle_set_halt; 2220 case UF_DEVICE_REMOTE_WAKEUP: 2221 goto tr_handle_set_wakeup; 2222 default: 2223 goto tr_stalled; 2224 } 2225 break; 2226 case UR_SYNCH_FRAME: 2227 goto tr_valid; /* nop */ 2228 default: 2229 goto tr_stalled; 2230 } 2231 break; 2232 2233 case UT_READ_ENDPOINT: 2234 switch (std->req.bRequest) { 2235 case UR_GET_STATUS: 2236 goto tr_handle_get_ep_status; 2237 default: 2238 goto tr_stalled; 2239 } 2240 break; 2241 2242 case UT_WRITE_INTERFACE: 2243 switch (std->req.bRequest) { 2244 case UR_SET_INTERFACE: 2245 goto tr_handle_set_interface; 2246 case UR_CLEAR_FEATURE: 2247 goto tr_valid; /* nop */ 2248 case UR_SET_FEATURE: 2249 default: 2250 goto tr_stalled; 2251 } 2252 break; 2253 2254 case UT_READ_INTERFACE: 2255 switch (std->req.bRequest) { 2256 case UR_GET_INTERFACE: 2257 goto tr_handle_get_interface; 2258 case UR_GET_STATUS: 2259 goto tr_handle_get_iface_status; 2260 default: 2261 goto tr_stalled; 2262 } 2263 break; 2264 2265 case UT_WRITE_CLASS_INTERFACE: 2266 case UT_WRITE_VENDOR_INTERFACE: 2267 /* XXX forward */ 2268 break; 2269 2270 case UT_READ_CLASS_INTERFACE: 2271 case UT_READ_VENDOR_INTERFACE: 2272 /* XXX forward */ 2273 break; 2274 2275 case UT_WRITE_CLASS_DEVICE: 2276 switch (std->req.bRequest) { 2277 case UR_CLEAR_FEATURE: 2278 goto tr_valid; 2279 case UR_SET_DESCRIPTOR: 2280 case UR_SET_FEATURE: 2281 break; 2282 default: 2283 goto tr_stalled; 2284 } 2285 break; 2286 2287 case UT_WRITE_CLASS_OTHER: 2288 switch (std->req.bRequest) { 2289 case UR_CLEAR_FEATURE: 2290 goto tr_handle_clear_port_feature; 2291 case UR_SET_FEATURE: 2292 goto tr_handle_set_port_feature; 2293 case UR_CLEAR_TT_BUFFER: 2294 case UR_RESET_TT: 2295 case UR_STOP_TT: 2296 goto tr_valid; 2297 2298 default: 2299 goto tr_stalled; 2300 } 2301 break; 2302 2303 case UT_READ_CLASS_OTHER: 2304 switch (std->req.bRequest) { 2305 case UR_GET_TT_STATE: 2306 goto tr_handle_get_tt_state; 2307 case UR_GET_STATUS: 2308 goto tr_handle_get_port_status; 2309 default: 2310 goto tr_stalled; 2311 } 2312 break; 2313 2314 case UT_READ_CLASS_DEVICE: 2315 switch (std->req.bRequest) { 2316 case UR_GET_DESCRIPTOR: 2317 goto tr_handle_get_class_descriptor; 2318 case UR_GET_STATUS: 2319 goto tr_handle_get_class_status; 2320 2321 default: 2322 goto tr_stalled; 2323 } 2324 break; 2325 default: 2326 goto tr_stalled; 2327 } 2328 goto tr_valid; 2329 2330 tr_handle_get_descriptor: 2331 switch (value >> 8) { 2332 case UDESC_DEVICE: 2333 if (value & 0xff) { 2334 goto tr_stalled; 2335 } 2336 std->len = sizeof(musbotg_devd); 2337 std->ptr = USB_ADD_BYTES(&musbotg_devd, 0); 2338 goto tr_valid; 2339 case UDESC_CONFIG: 2340 if (value & 0xff) { 2341 goto tr_stalled; 2342 } 2343 std->len = sizeof(musbotg_confd); 2344 std->ptr = USB_ADD_BYTES(&musbotg_confd, 0); 2345 goto tr_valid; 2346 case UDESC_STRING: 2347 switch (value & 0xff) { 2348 case 0: /* Language table */ 2349 std->len = sizeof(musbotg_langtab); 2350 std->ptr = USB_ADD_BYTES(&musbotg_langtab, 0); 2351 goto tr_valid; 2352 2353 case 1: /* Vendor */ 2354 std->len = sizeof(musbotg_vendor); 2355 std->ptr = USB_ADD_BYTES(&musbotg_vendor, 0); 2356 goto tr_valid; 2357 2358 case 2: /* Product */ 2359 std->len = sizeof(musbotg_product); 2360 std->ptr = USB_ADD_BYTES(&musbotg_product, 0); 2361 goto tr_valid; 2362 default: 2363 break; 2364 } 2365 break; 2366 default: 2367 goto tr_stalled; 2368 } 2369 goto tr_stalled; 2370 2371 tr_handle_get_config: 2372 std->len = 1; 2373 sc->sc_hub_temp.wValue[0] = sc->sc_conf; 2374 goto tr_valid; 2375 2376 tr_handle_get_status: 2377 std->len = 2; 2378 USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED); 2379 goto tr_valid; 2380 2381 tr_handle_set_address: 2382 if (value & 0xFF00) { 2383 goto tr_stalled; 2384 } 2385 sc->sc_rt_addr = value; 2386 goto tr_valid; 2387 2388 tr_handle_set_config: 2389 if (value >= 2) { 2390 goto tr_stalled; 2391 } 2392 sc->sc_conf = value; 2393 goto tr_valid; 2394 2395 tr_handle_get_interface: 2396 std->len = 1; 2397 sc->sc_hub_temp.wValue[0] = 0; 2398 goto tr_valid; 2399 2400 tr_handle_get_tt_state: 2401 tr_handle_get_class_status: 2402 tr_handle_get_iface_status: 2403 tr_handle_get_ep_status: 2404 std->len = 2; 2405 USETW(sc->sc_hub_temp.wValue, 0); 2406 goto tr_valid; 2407 2408 tr_handle_set_halt: 2409 tr_handle_set_interface: 2410 tr_handle_set_wakeup: 2411 tr_handle_clear_wakeup: 2412 tr_handle_clear_halt: 2413 goto tr_valid; 2414 2415 tr_handle_clear_port_feature: 2416 if (index != 1) { 2417 goto tr_stalled; 2418 } 2419 DPRINTFN(8, "UR_CLEAR_PORT_FEATURE on port %d\n", index); 2420 2421 switch (value) { 2422 case UHF_PORT_SUSPEND: 2423 musbotg_wakeup_peer(sc); 2424 break; 2425 2426 case UHF_PORT_ENABLE: 2427 sc->sc_flags.port_enabled = 0; 2428 break; 2429 2430 case UHF_PORT_TEST: 2431 case UHF_PORT_INDICATOR: 2432 case UHF_C_PORT_ENABLE: 2433 case UHF_C_PORT_OVER_CURRENT: 2434 case UHF_C_PORT_RESET: 2435 /* nops */ 2436 break; 2437 case UHF_PORT_POWER: 2438 sc->sc_flags.port_powered = 0; 2439 musbotg_pull_down(sc); 2440 musbotg_clocks_off(sc); 2441 break; 2442 case UHF_C_PORT_CONNECTION: 2443 sc->sc_flags.change_connect = 0; 2444 break; 2445 case UHF_C_PORT_SUSPEND: 2446 sc->sc_flags.change_suspend = 0; 2447 break; 2448 default: 2449 std->err = USB_ERR_IOERROR; 2450 goto done; 2451 } 2452 goto tr_valid; 2453 2454 tr_handle_set_port_feature: 2455 if (index != 1) { 2456 goto tr_stalled; 2457 } 2458 DPRINTFN(8, "UR_SET_PORT_FEATURE\n"); 2459 2460 switch (value) { 2461 case UHF_PORT_ENABLE: 2462 sc->sc_flags.port_enabled = 1; 2463 break; 2464 case UHF_PORT_SUSPEND: 2465 case UHF_PORT_RESET: 2466 case UHF_PORT_TEST: 2467 case UHF_PORT_INDICATOR: 2468 /* nops */ 2469 break; 2470 case UHF_PORT_POWER: 2471 sc->sc_flags.port_powered = 1; 2472 break; 2473 default: 2474 std->err = USB_ERR_IOERROR; 2475 goto done; 2476 } 2477 goto tr_valid; 2478 2479 tr_handle_get_port_status: 2480 2481 DPRINTFN(8, "UR_GET_PORT_STATUS\n"); 2482 2483 if (index != 1) { 2484 goto tr_stalled; 2485 } 2486 if (sc->sc_flags.status_vbus) { 2487 musbotg_clocks_on(sc); 2488 musbotg_pull_up(sc); 2489 } else { 2490 musbotg_pull_down(sc); 2491 musbotg_clocks_off(sc); 2492 } 2493 2494 /* Select Device Side Mode */ 2495 value = UPS_PORT_MODE_DEVICE; 2496 2497 if (sc->sc_flags.status_high_speed) { 2498 value |= UPS_HIGH_SPEED; 2499 } 2500 if (sc->sc_flags.port_powered) { 2501 value |= UPS_PORT_POWER; 2502 } 2503 if (sc->sc_flags.port_enabled) { 2504 value |= UPS_PORT_ENABLED; 2505 } 2506 if (sc->sc_flags.status_vbus && 2507 sc->sc_flags.status_bus_reset) { 2508 value |= UPS_CURRENT_CONNECT_STATUS; 2509 } 2510 if (sc->sc_flags.status_suspend) { 2511 value |= UPS_SUSPEND; 2512 } 2513 USETW(sc->sc_hub_temp.ps.wPortStatus, value); 2514 2515 value = 0; 2516 2517 if (sc->sc_flags.change_connect) { 2518 value |= UPS_C_CONNECT_STATUS; 2519 2520 if (sc->sc_flags.status_vbus && 2521 sc->sc_flags.status_bus_reset) { 2522 /* reset EP0 state */ 2523 sc->sc_ep0_busy = 0; 2524 sc->sc_ep0_cmd = 0; 2525 } 2526 } 2527 if (sc->sc_flags.change_suspend) { 2528 value |= UPS_C_SUSPEND; 2529 } 2530 USETW(sc->sc_hub_temp.ps.wPortChange, value); 2531 std->len = sizeof(sc->sc_hub_temp.ps); 2532 goto tr_valid; 2533 2534 tr_handle_get_class_descriptor: 2535 if (value & 0xFF) { 2536 goto tr_stalled; 2537 } 2538 std->ptr = USB_ADD_BYTES(&musbotg_hubd, 0); 2539 std->len = sizeof(musbotg_hubd); 2540 goto tr_valid; 2541 2542 tr_stalled: 2543 std->err = USB_ERR_STALLED; 2544 tr_valid: 2545 done: 2546 return; 2547 } 2548 2549 static void 2550 musbotg_xfer_setup(struct usb2_setup_params *parm) 2551 { 2552 const struct usb2_hw_ep_profile *pf; 2553 struct musbotg_softc *sc; 2554 struct usb2_xfer *xfer; 2555 void *last_obj; 2556 uint32_t ntd; 2557 uint32_t n; 2558 uint8_t ep_no; 2559 2560 sc = MUSBOTG_BUS2SC(parm->udev->bus); 2561 xfer = parm->curr_xfer; 2562 2563 /* 2564 * NOTE: This driver does not use any of the parameters that 2565 * are computed from the following values. Just set some 2566 * reasonable dummies: 2567 */ 2568 parm->hc_max_packet_size = 0x400; 2569 parm->hc_max_frame_size = 0x400; 2570 2571 if ((parm->methods == &musbotg_device_isoc_methods) || 2572 (parm->methods == &musbotg_device_intr_methods)) 2573 parm->hc_max_packet_count = 3; 2574 else 2575 parm->hc_max_packet_count = 1; 2576 2577 usb2_transfer_setup_sub(parm); 2578 2579 /* 2580 * compute maximum number of TDs 2581 */ 2582 if (parm->methods == &musbotg_device_ctrl_methods) { 2583 2584 ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ; 2585 2586 } else if (parm->methods == &musbotg_device_bulk_methods) { 2587 2588 ntd = xfer->nframes + 1 /* SYNC */ ; 2589 2590 } else if (parm->methods == &musbotg_device_intr_methods) { 2591 2592 ntd = xfer->nframes + 1 /* SYNC */ ; 2593 2594 } else if (parm->methods == &musbotg_device_isoc_methods) { 2595 2596 ntd = xfer->nframes + 1 /* SYNC */ ; 2597 2598 } else { 2599 2600 ntd = 0; 2601 } 2602 2603 /* 2604 * check if "usb2_transfer_setup_sub" set an error 2605 */ 2606 if (parm->err) { 2607 return; 2608 } 2609 /* 2610 * allocate transfer descriptors 2611 */ 2612 last_obj = NULL; 2613 2614 /* 2615 * get profile stuff 2616 */ 2617 if (ntd) { 2618 2619 ep_no = xfer->endpoint & UE_ADDR; 2620 musbotg_get_hw_ep_profile(parm->udev, &pf, ep_no); 2621 2622 if (pf == NULL) { 2623 /* should not happen */ 2624 parm->err = USB_ERR_INVAL; 2625 return; 2626 } 2627 } else { 2628 ep_no = 0; 2629 pf = NULL; 2630 } 2631 2632 /* align data */ 2633 parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1)); 2634 2635 for (n = 0; n != ntd; n++) { 2636 2637 struct musbotg_td *td; 2638 2639 if (parm->buf) { 2640 2641 td = USB_ADD_BYTES(parm->buf, parm->size[0]); 2642 2643 /* init TD */ 2644 td->max_frame_size = xfer->max_frame_size; 2645 td->ep_no = ep_no; 2646 td->obj_next = last_obj; 2647 2648 last_obj = td; 2649 } 2650 parm->size[0] += sizeof(*td); 2651 } 2652 2653 xfer->td_start[0] = last_obj; 2654 } 2655 2656 static void 2657 musbotg_xfer_unsetup(struct usb2_xfer *xfer) 2658 { 2659 return; 2660 } 2661 2662 static void 2663 musbotg_pipe_init(struct usb2_device *udev, struct usb2_endpoint_descriptor *edesc, 2664 struct usb2_pipe *pipe) 2665 { 2666 struct musbotg_softc *sc = MUSBOTG_BUS2SC(udev->bus); 2667 2668 DPRINTFN(2, "pipe=%p, addr=%d, endpt=%d, mode=%d (%d)\n", 2669 pipe, udev->address, 2670 edesc->bEndpointAddress, udev->flags.usb2_mode, 2671 sc->sc_rt_addr); 2672 2673 if (udev->device_index != sc->sc_rt_addr) { 2674 2675 if (udev->flags.usb2_mode != USB_MODE_DEVICE) { 2676 /* not supported */ 2677 return; 2678 } 2679 if ((udev->speed != USB_SPEED_FULL) && 2680 (udev->speed != USB_SPEED_HIGH)) { 2681 /* not supported */ 2682 return; 2683 } 2684 switch (edesc->bmAttributes & UE_XFERTYPE) { 2685 case UE_CONTROL: 2686 pipe->methods = &musbotg_device_ctrl_methods; 2687 break; 2688 case UE_INTERRUPT: 2689 pipe->methods = &musbotg_device_intr_methods; 2690 break; 2691 case UE_ISOCHRONOUS: 2692 pipe->methods = &musbotg_device_isoc_methods; 2693 break; 2694 case UE_BULK: 2695 pipe->methods = &musbotg_device_bulk_methods; 2696 break; 2697 default: 2698 /* do nothing */ 2699 break; 2700 } 2701 } 2702 } 2703 2704 struct usb2_bus_methods musbotg_bus_methods = 2705 { 2706 .pipe_init = &musbotg_pipe_init, 2707 .xfer_setup = &musbotg_xfer_setup, 2708 .xfer_unsetup = &musbotg_xfer_unsetup, 2709 .get_hw_ep_profile = &musbotg_get_hw_ep_profile, 2710 .set_stall = &musbotg_set_stall, 2711 .clear_stall = &musbotg_clear_stall, 2712 .roothub_exec = &musbotg_roothub_exec, 2713 }; 2714