1 /* $FreeBSD$ */ 2 /*- 3 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4 * 5 * Copyright (c) 2008 Hans Petter Selasky <hselasky@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * This file contains the driver for the USS820 series USB Device 32 * Controller 33 * 34 * NOTE: The datasheet does not document everything. 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 uss820dcidebug 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/uss820dci.h> 78 79 #define USS820_DCI_BUS2SC(bus) \ 80 ((struct uss820dci_softc *)(((uint8_t *)(bus)) - \ 81 ((uint8_t *)&(((struct uss820dci_softc *)0)->sc_bus)))) 82 83 #define USS820_DCI_PC2SC(pc) \ 84 USS820_DCI_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus) 85 86 #define USS820_DCI_THREAD_IRQ \ 87 (USS820_SSR_SUSPEND | USS820_SSR_RESUME | USS820_SSR_RESET) 88 89 #ifdef USB_DEBUG 90 static int uss820dcidebug = 0; 91 92 static SYSCTL_NODE(_hw_usb, OID_AUTO, uss820dci, CTLFLAG_RW, 0, 93 "USB uss820dci"); 94 SYSCTL_INT(_hw_usb_uss820dci, OID_AUTO, debug, CTLFLAG_RWTUN, 95 &uss820dcidebug, 0, "uss820dci debug level"); 96 #endif 97 98 #define USS820_DCI_INTR_ENDPT 1 99 100 /* prototypes */ 101 102 static const struct usb_bus_methods uss820dci_bus_methods; 103 static const struct usb_pipe_methods uss820dci_device_bulk_methods; 104 static const struct usb_pipe_methods uss820dci_device_ctrl_methods; 105 static const struct usb_pipe_methods uss820dci_device_intr_methods; 106 static const struct usb_pipe_methods uss820dci_device_isoc_fs_methods; 107 108 static uss820dci_cmd_t uss820dci_setup_rx; 109 static uss820dci_cmd_t uss820dci_data_rx; 110 static uss820dci_cmd_t uss820dci_data_tx; 111 static uss820dci_cmd_t uss820dci_data_tx_sync; 112 static void uss820dci_device_done(struct usb_xfer *, usb_error_t); 113 static void uss820dci_do_poll(struct usb_bus *); 114 static void uss820dci_standard_done(struct usb_xfer *); 115 static void uss820dci_intr_set(struct usb_xfer *, uint8_t); 116 static void uss820dci_update_shared_1(struct uss820dci_softc *, uint8_t, 117 uint8_t, uint8_t); 118 static void uss820dci_root_intr(struct uss820dci_softc *); 119 120 /* 121 * Here is a list of what the USS820D chip can support. The main 122 * limitation is that the sum of the buffer sizes must be less than 123 * 1120 bytes. 124 */ 125 static const struct usb_hw_ep_profile 126 uss820dci_ep_profile[] = { 127 128 [0] = { 129 .max_in_frame_size = 32, 130 .max_out_frame_size = 32, 131 .is_simplex = 0, 132 .support_control = 1, 133 }, 134 [1] = { 135 .max_in_frame_size = 64, 136 .max_out_frame_size = 64, 137 .is_simplex = 0, 138 .support_multi_buffer = 1, 139 .support_bulk = 1, 140 .support_interrupt = 1, 141 .support_in = 1, 142 .support_out = 1, 143 }, 144 [2] = { 145 .max_in_frame_size = 8, 146 .max_out_frame_size = 8, 147 .is_simplex = 0, 148 .support_multi_buffer = 1, 149 .support_bulk = 1, 150 .support_interrupt = 1, 151 .support_in = 1, 152 .support_out = 1, 153 }, 154 [3] = { 155 .max_in_frame_size = 256, 156 .max_out_frame_size = 256, 157 .is_simplex = 0, 158 .support_multi_buffer = 1, 159 .support_isochronous = 1, 160 .support_in = 1, 161 .support_out = 1, 162 }, 163 }; 164 165 static void 166 uss820dci_update_shared_1(struct uss820dci_softc *sc, uint8_t reg, 167 uint8_t keep_mask, uint8_t set_mask) 168 { 169 uint8_t temp; 170 171 USS820_WRITE_1(sc, USS820_PEND, 1); 172 temp = USS820_READ_1(sc, reg); 173 temp &= (keep_mask); 174 temp |= (set_mask); 175 USS820_WRITE_1(sc, reg, temp); 176 USS820_WRITE_1(sc, USS820_PEND, 0); 177 } 178 179 static void 180 uss820dci_get_hw_ep_profile(struct usb_device *udev, 181 const struct usb_hw_ep_profile **ppf, uint8_t ep_addr) 182 { 183 if (ep_addr == 0) { 184 *ppf = uss820dci_ep_profile + 0; 185 } else if (ep_addr < 5) { 186 *ppf = uss820dci_ep_profile + 1; 187 } else if (ep_addr < 7) { 188 *ppf = uss820dci_ep_profile + 2; 189 } else if (ep_addr == 7) { 190 *ppf = uss820dci_ep_profile + 3; 191 } else { 192 *ppf = NULL; 193 } 194 } 195 196 static void 197 uss820dci_pull_up(struct uss820dci_softc *sc) 198 { 199 uint8_t temp; 200 201 /* pullup D+, if possible */ 202 203 if (!sc->sc_flags.d_pulled_up && 204 sc->sc_flags.port_powered) { 205 sc->sc_flags.d_pulled_up = 1; 206 207 DPRINTF("\n"); 208 209 temp = USS820_READ_1(sc, USS820_MCSR); 210 temp |= USS820_MCSR_DPEN; 211 USS820_WRITE_1(sc, USS820_MCSR, temp); 212 } 213 } 214 215 static void 216 uss820dci_pull_down(struct uss820dci_softc *sc) 217 { 218 uint8_t temp; 219 220 /* pulldown D+, if possible */ 221 222 if (sc->sc_flags.d_pulled_up) { 223 sc->sc_flags.d_pulled_up = 0; 224 225 DPRINTF("\n"); 226 227 temp = USS820_READ_1(sc, USS820_MCSR); 228 temp &= ~USS820_MCSR_DPEN; 229 USS820_WRITE_1(sc, USS820_MCSR, temp); 230 } 231 } 232 233 static void 234 uss820dci_wakeup_peer(struct uss820dci_softc *sc) 235 { 236 if (!(sc->sc_flags.status_suspend)) { 237 return; 238 } 239 DPRINTFN(0, "not supported\n"); 240 } 241 242 static void 243 uss820dci_set_address(struct uss820dci_softc *sc, uint8_t addr) 244 { 245 DPRINTFN(5, "addr=%d\n", addr); 246 247 USS820_WRITE_1(sc, USS820_FADDR, addr); 248 } 249 250 static uint8_t 251 uss820dci_setup_rx(struct uss820dci_softc *sc, struct uss820dci_td *td) 252 { 253 struct usb_device_request req; 254 uint16_t count; 255 uint8_t rx_stat; 256 uint8_t temp; 257 258 /* select the correct endpoint */ 259 USS820_WRITE_1(sc, USS820_EPINDEX, td->ep_index); 260 261 /* read out FIFO status */ 262 rx_stat = USS820_READ_1(sc, USS820_RXSTAT); 263 264 DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder); 265 266 if (!(rx_stat & USS820_RXSTAT_RXSETUP)) { 267 goto not_complete; 268 } 269 /* clear did stall */ 270 td->did_stall = 0; 271 272 /* clear stall and all I/O */ 273 uss820dci_update_shared_1(sc, USS820_EPCON, 274 0xFF ^ (USS820_EPCON_TXSTL | 275 USS820_EPCON_RXSTL | 276 USS820_EPCON_RXIE | 277 USS820_EPCON_TXOE), 0); 278 279 /* clear end overwrite flag */ 280 uss820dci_update_shared_1(sc, USS820_RXSTAT, 281 0xFF ^ USS820_RXSTAT_EDOVW, 0); 282 283 /* get the packet byte count */ 284 count = USS820_READ_1(sc, USS820_RXCNTL); 285 count |= (USS820_READ_1(sc, USS820_RXCNTH) << 8); 286 count &= 0x3FF; 287 288 /* verify data length */ 289 if (count != td->remainder) { 290 DPRINTFN(0, "Invalid SETUP packet " 291 "length, %d bytes\n", count); 292 goto setup_not_complete; 293 } 294 if (count != sizeof(req)) { 295 DPRINTFN(0, "Unsupported SETUP packet " 296 "length, %d bytes\n", count); 297 goto setup_not_complete; 298 } 299 /* receive data */ 300 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 301 USS820_RXDAT * USS820_REG_STRIDE, (void *)&req, sizeof(req)); 302 303 /* read out FIFO status */ 304 rx_stat = USS820_READ_1(sc, USS820_RXSTAT); 305 306 if (rx_stat & (USS820_RXSTAT_EDOVW | 307 USS820_RXSTAT_STOVW)) { 308 DPRINTF("new SETUP packet received\n"); 309 return (1); /* not complete */ 310 } 311 /* clear receive setup bit */ 312 uss820dci_update_shared_1(sc, USS820_RXSTAT, 313 0xFF ^ (USS820_RXSTAT_RXSETUP | 314 USS820_RXSTAT_EDOVW | 315 USS820_RXSTAT_STOVW), 0); 316 317 /* set RXFFRC bit */ 318 temp = USS820_READ_1(sc, USS820_RXCON); 319 temp |= USS820_RXCON_RXFFRC; 320 USS820_WRITE_1(sc, USS820_RXCON, temp); 321 322 /* copy data into real buffer */ 323 usbd_copy_in(td->pc, 0, &req, sizeof(req)); 324 325 td->offset = sizeof(req); 326 td->remainder = 0; 327 328 /* sneak peek the set address */ 329 if ((req.bmRequestType == UT_WRITE_DEVICE) && 330 (req.bRequest == UR_SET_ADDRESS)) { 331 sc->sc_dv_addr = req.wValue[0] & 0x7F; 332 } else { 333 sc->sc_dv_addr = 0xFF; 334 } 335 336 /* reset TX FIFO */ 337 temp = USS820_READ_1(sc, USS820_TXCON); 338 temp |= USS820_TXCON_TXCLR; 339 USS820_WRITE_1(sc, USS820_TXCON, temp); 340 temp &= ~USS820_TXCON_TXCLR; 341 USS820_WRITE_1(sc, USS820_TXCON, temp); 342 343 return (0); /* complete */ 344 345 setup_not_complete: 346 347 /* set RXFFRC bit */ 348 temp = USS820_READ_1(sc, USS820_RXCON); 349 temp |= USS820_RXCON_RXFFRC; 350 USS820_WRITE_1(sc, USS820_RXCON, temp); 351 352 /* FALLTHROUGH */ 353 354 not_complete: 355 /* abort any ongoing transfer */ 356 if (!td->did_stall) { 357 DPRINTFN(5, "stalling\n"); 358 /* set stall */ 359 uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, 360 (USS820_EPCON_TXSTL | USS820_EPCON_RXSTL)); 361 362 td->did_stall = 1; 363 } 364 365 /* clear end overwrite flag, if any */ 366 if (rx_stat & USS820_RXSTAT_RXSETUP) { 367 uss820dci_update_shared_1(sc, USS820_RXSTAT, 368 0xFF ^ (USS820_RXSTAT_EDOVW | 369 USS820_RXSTAT_STOVW | 370 USS820_RXSTAT_RXSETUP), 0); 371 } 372 return (1); /* not complete */ 373 } 374 375 static uint8_t 376 uss820dci_data_rx(struct uss820dci_softc *sc, struct uss820dci_td *td) 377 { 378 struct usb_page_search buf_res; 379 uint16_t count; 380 uint8_t rx_flag; 381 uint8_t rx_stat; 382 uint8_t rx_cntl; 383 uint8_t to; 384 uint8_t got_short; 385 386 to = 2; /* don't loop forever! */ 387 got_short = 0; 388 389 /* select the correct endpoint */ 390 USS820_WRITE_1(sc, USS820_EPINDEX, td->ep_index); 391 392 /* check if any of the FIFO banks have data */ 393 repeat: 394 /* read out FIFO flag */ 395 rx_flag = USS820_READ_1(sc, USS820_RXFLG); 396 /* read out FIFO status */ 397 rx_stat = USS820_READ_1(sc, USS820_RXSTAT); 398 399 DPRINTFN(5, "rx_stat=0x%02x rx_flag=0x%02x rem=%u\n", 400 rx_stat, rx_flag, td->remainder); 401 402 if (rx_stat & (USS820_RXSTAT_RXSETUP | 403 USS820_RXSTAT_RXSOVW | 404 USS820_RXSTAT_EDOVW)) { 405 if (td->remainder == 0 && td->ep_index == 0) { 406 /* 407 * We are actually complete and have 408 * received the next SETUP 409 */ 410 DPRINTFN(5, "faking complete\n"); 411 return (0); /* complete */ 412 } 413 /* 414 * USB Host Aborted the transfer. 415 */ 416 td->error = 1; 417 return (0); /* complete */ 418 } 419 /* check for errors */ 420 if (rx_flag & (USS820_RXFLG_RXOVF | 421 USS820_RXFLG_RXURF)) { 422 DPRINTFN(5, "overflow or underflow\n"); 423 /* should not happen */ 424 td->error = 1; 425 return (0); /* complete */ 426 } 427 /* check status */ 428 if (!(rx_flag & (USS820_RXFLG_RXFIF0 | 429 USS820_RXFLG_RXFIF1))) { 430 431 /* read out EPCON register */ 432 /* enable RX input */ 433 if (!td->did_enable) { 434 uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc), 435 USS820_EPCON, 0xFF, USS820_EPCON_RXIE); 436 td->did_enable = 1; 437 } 438 return (1); /* not complete */ 439 } 440 /* get the packet byte count */ 441 count = USS820_READ_1(sc, USS820_RXCNTL); 442 count |= (USS820_READ_1(sc, USS820_RXCNTH) << 8); 443 count &= 0x3FF; 444 445 DPRINTFN(5, "count=0x%04x\n", count); 446 447 /* verify the packet byte count */ 448 if (count != td->max_packet_size) { 449 if (count < td->max_packet_size) { 450 /* we have a short packet */ 451 td->short_pkt = 1; 452 got_short = 1; 453 } else { 454 /* invalid USB packet */ 455 td->error = 1; 456 return (0); /* we are complete */ 457 } 458 } 459 /* verify the packet byte count */ 460 if (count > td->remainder) { 461 /* invalid USB packet */ 462 td->error = 1; 463 return (0); /* we are complete */ 464 } 465 while (count > 0) { 466 usbd_get_page(td->pc, td->offset, &buf_res); 467 468 /* get correct length */ 469 if (buf_res.length > count) { 470 buf_res.length = count; 471 } 472 /* receive data */ 473 bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 474 USS820_RXDAT * USS820_REG_STRIDE, buf_res.buffer, buf_res.length); 475 476 /* update counters */ 477 count -= buf_res.length; 478 td->offset += buf_res.length; 479 td->remainder -= buf_res.length; 480 } 481 482 /* set RXFFRC bit */ 483 rx_cntl = USS820_READ_1(sc, USS820_RXCON); 484 rx_cntl |= USS820_RXCON_RXFFRC; 485 USS820_WRITE_1(sc, USS820_RXCON, rx_cntl); 486 487 /* check if we are complete */ 488 if ((td->remainder == 0) || got_short) { 489 if (td->short_pkt) { 490 /* we are complete */ 491 return (0); 492 } 493 /* else need to receive a zero length packet */ 494 } 495 if (--to) { 496 goto repeat; 497 } 498 return (1); /* not complete */ 499 } 500 501 static uint8_t 502 uss820dci_data_tx(struct uss820dci_softc *sc, struct uss820dci_td *td) 503 { 504 struct usb_page_search buf_res; 505 uint16_t count; 506 uint16_t count_copy; 507 uint8_t rx_stat; 508 uint8_t tx_flag; 509 uint8_t to; 510 511 /* select the correct endpoint */ 512 USS820_WRITE_1(sc, USS820_EPINDEX, td->ep_index); 513 514 to = 2; /* don't loop forever! */ 515 516 repeat: 517 /* read out TX FIFO flags */ 518 tx_flag = USS820_READ_1(sc, USS820_TXFLG); 519 520 DPRINTFN(5, "tx_flag=0x%02x rem=%u\n", tx_flag, td->remainder); 521 522 if (td->ep_index == 0) { 523 /* read out RX FIFO status last */ 524 rx_stat = USS820_READ_1(sc, USS820_RXSTAT); 525 526 DPRINTFN(5, "rx_stat=0x%02x\n", rx_stat); 527 528 if (rx_stat & (USS820_RXSTAT_RXSETUP | 529 USS820_RXSTAT_RXSOVW | 530 USS820_RXSTAT_EDOVW)) { 531 /* 532 * The current transfer was aborted by the USB 533 * Host: 534 */ 535 td->error = 1; 536 return (0); /* complete */ 537 } 538 } 539 if (tx_flag & (USS820_TXFLG_TXOVF | 540 USS820_TXFLG_TXURF)) { 541 td->error = 1; 542 return (0); /* complete */ 543 } 544 if (tx_flag & USS820_TXFLG_TXFIF0) { 545 if (tx_flag & USS820_TXFLG_TXFIF1) { 546 return (1); /* not complete */ 547 } 548 } 549 if ((!td->support_multi_buffer) && 550 (tx_flag & (USS820_TXFLG_TXFIF0 | 551 USS820_TXFLG_TXFIF1))) { 552 return (1); /* not complete */ 553 } 554 count = td->max_packet_size; 555 if (td->remainder < count) { 556 /* we have a short packet */ 557 td->short_pkt = 1; 558 count = td->remainder; 559 } 560 count_copy = count; 561 while (count > 0) { 562 563 usbd_get_page(td->pc, td->offset, &buf_res); 564 565 /* get correct length */ 566 if (buf_res.length > count) { 567 buf_res.length = count; 568 } 569 /* transmit data */ 570 bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, 571 USS820_TXDAT * USS820_REG_STRIDE, buf_res.buffer, buf_res.length); 572 573 /* update counters */ 574 count -= buf_res.length; 575 td->offset += buf_res.length; 576 td->remainder -= buf_res.length; 577 } 578 579 /* post-write high packet byte count first */ 580 USS820_WRITE_1(sc, USS820_TXCNTH, count_copy >> 8); 581 582 /* post-write low packet byte count last */ 583 USS820_WRITE_1(sc, USS820_TXCNTL, count_copy); 584 585 /* 586 * Enable TX output, which must happen after that we have written 587 * data into the FIFO. This is undocumented. 588 */ 589 if (!td->did_enable) { 590 uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc), 591 USS820_EPCON, 0xFF, USS820_EPCON_TXOE); 592 td->did_enable = 1; 593 } 594 /* check remainder */ 595 if (td->remainder == 0) { 596 if (td->short_pkt) { 597 return (0); /* complete */ 598 } 599 /* else we need to transmit a short packet */ 600 } 601 if (--to) { 602 goto repeat; 603 } 604 return (1); /* not complete */ 605 } 606 607 static uint8_t 608 uss820dci_data_tx_sync(struct uss820dci_softc *sc, struct uss820dci_td *td) 609 { 610 uint8_t rx_stat; 611 uint8_t tx_flag; 612 613 /* select the correct endpoint */ 614 USS820_WRITE_1(sc, USS820_EPINDEX, td->ep_index); 615 616 /* read out TX FIFO flag */ 617 tx_flag = USS820_READ_1(sc, USS820_TXFLG); 618 619 if (td->ep_index == 0) { 620 /* read out RX FIFO status last */ 621 rx_stat = USS820_READ_1(sc, USS820_RXSTAT); 622 623 DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder); 624 625 if (rx_stat & (USS820_RXSTAT_RXSETUP | 626 USS820_RXSTAT_RXSOVW | 627 USS820_RXSTAT_EDOVW)) { 628 DPRINTFN(5, "faking complete\n"); 629 /* Race condition */ 630 return (0); /* complete */ 631 } 632 } 633 DPRINTFN(5, "tx_flag=0x%02x rem=%u\n", tx_flag, td->remainder); 634 635 if (tx_flag & (USS820_TXFLG_TXOVF | 636 USS820_TXFLG_TXURF)) { 637 td->error = 1; 638 return (0); /* complete */ 639 } 640 if (tx_flag & (USS820_TXFLG_TXFIF0 | 641 USS820_TXFLG_TXFIF1)) { 642 return (1); /* not complete */ 643 } 644 if (td->ep_index == 0 && sc->sc_dv_addr != 0xFF) { 645 /* write function address */ 646 uss820dci_set_address(sc, sc->sc_dv_addr); 647 } 648 return (0); /* complete */ 649 } 650 651 static void 652 uss820dci_xfer_do_fifo(struct usb_xfer *xfer) 653 { 654 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 655 struct uss820dci_td *td; 656 657 DPRINTFN(9, "\n"); 658 659 td = xfer->td_transfer_cache; 660 if (td == NULL) 661 return; 662 663 while (1) { 664 if ((td->func) (sc, td)) { 665 /* operation in progress */ 666 break; 667 } 668 if (((void *)td) == xfer->td_transfer_last) { 669 goto done; 670 } 671 if (td->error) { 672 goto done; 673 } else if (td->remainder > 0) { 674 /* 675 * We had a short transfer. If there is no alternate 676 * next, stop processing ! 677 */ 678 if (!td->alt_next) { 679 goto done; 680 } 681 } 682 /* 683 * Fetch the next transfer descriptor. 684 */ 685 td = td->obj_next; 686 xfer->td_transfer_cache = td; 687 } 688 return; 689 690 done: 691 /* compute all actual lengths */ 692 xfer->td_transfer_cache = NULL; 693 sc->sc_xfer_complete = 1; 694 } 695 696 static uint8_t 697 uss820dci_xfer_do_complete(struct usb_xfer *xfer) 698 { 699 struct uss820dci_td *td; 700 701 DPRINTFN(9, "\n"); 702 703 td = xfer->td_transfer_cache; 704 if (td == NULL) { 705 /* compute all actual lengths */ 706 uss820dci_standard_done(xfer); 707 return(1); 708 } 709 return (0); 710 } 711 712 static void 713 uss820dci_interrupt_poll_locked(struct uss820dci_softc *sc) 714 { 715 struct usb_xfer *xfer; 716 717 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) 718 uss820dci_xfer_do_fifo(xfer); 719 } 720 721 static void 722 uss820dci_interrupt_complete_locked(struct uss820dci_softc *sc) 723 { 724 struct usb_xfer *xfer; 725 repeat: 726 TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { 727 if (uss820dci_xfer_do_complete(xfer)) 728 goto repeat; 729 } 730 } 731 732 static void 733 uss820dci_wait_suspend(struct uss820dci_softc *sc, uint8_t on) 734 { 735 uint8_t scr; 736 uint8_t scratch; 737 738 scr = USS820_READ_1(sc, USS820_SCR); 739 scratch = USS820_READ_1(sc, USS820_SCRATCH); 740 741 if (on) { 742 scr |= USS820_SCR_IE_SUSP; 743 scratch &= ~USS820_SCRATCH_IE_RESUME; 744 } else { 745 scr &= ~USS820_SCR_IE_SUSP; 746 scratch |= USS820_SCRATCH_IE_RESUME; 747 } 748 749 USS820_WRITE_1(sc, USS820_SCR, scr); 750 USS820_WRITE_1(sc, USS820_SCRATCH, scratch); 751 } 752 753 int 754 uss820dci_filter_interrupt(void *arg) 755 { 756 struct uss820dci_softc *sc = arg; 757 int retval = FILTER_HANDLED; 758 uint8_t ssr; 759 760 USB_BUS_SPIN_LOCK(&sc->sc_bus); 761 762 ssr = USS820_READ_1(sc, USS820_SSR); 763 uss820dci_update_shared_1(sc, USS820_SSR, USS820_DCI_THREAD_IRQ, 0); 764 765 if (ssr & USS820_DCI_THREAD_IRQ) 766 retval = FILTER_SCHEDULE_THREAD; 767 768 /* poll FIFOs, if any */ 769 uss820dci_interrupt_poll_locked(sc); 770 771 if (sc->sc_xfer_complete != 0) 772 retval = FILTER_SCHEDULE_THREAD; 773 774 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 775 776 return (retval); 777 } 778 779 void 780 uss820dci_interrupt(void *arg) 781 { 782 struct uss820dci_softc *sc = arg; 783 uint8_t ssr; 784 uint8_t event; 785 786 USB_BUS_LOCK(&sc->sc_bus); 787 USB_BUS_SPIN_LOCK(&sc->sc_bus); 788 789 ssr = USS820_READ_1(sc, USS820_SSR); 790 791 /* acknowledge all interrupts */ 792 793 uss820dci_update_shared_1(sc, USS820_SSR, ~USS820_DCI_THREAD_IRQ, 0); 794 795 /* check for any bus state change interrupts */ 796 797 if (ssr & USS820_DCI_THREAD_IRQ) { 798 799 event = 0; 800 801 if (ssr & USS820_SSR_RESET) { 802 sc->sc_flags.status_bus_reset = 1; 803 sc->sc_flags.status_suspend = 0; 804 sc->sc_flags.change_suspend = 0; 805 sc->sc_flags.change_connect = 1; 806 807 /* disable resume interrupt */ 808 uss820dci_wait_suspend(sc, 1); 809 810 event = 1; 811 } 812 /* 813 * If "RESUME" and "SUSPEND" is set at the same time 814 * we interpret that like "RESUME". Resume is set when 815 * there is at least 3 milliseconds of inactivity on 816 * the USB BUS. 817 */ 818 if (ssr & USS820_SSR_RESUME) { 819 if (sc->sc_flags.status_suspend) { 820 sc->sc_flags.status_suspend = 0; 821 sc->sc_flags.change_suspend = 1; 822 /* disable resume interrupt */ 823 uss820dci_wait_suspend(sc, 1); 824 event = 1; 825 } 826 } else if (ssr & USS820_SSR_SUSPEND) { 827 if (!sc->sc_flags.status_suspend) { 828 sc->sc_flags.status_suspend = 1; 829 sc->sc_flags.change_suspend = 1; 830 /* enable resume interrupt */ 831 uss820dci_wait_suspend(sc, 0); 832 event = 1; 833 } 834 } 835 if (event) { 836 837 DPRINTF("real bus interrupt 0x%02x\n", ssr); 838 839 /* complete root HUB interrupt endpoint */ 840 uss820dci_root_intr(sc); 841 } 842 } 843 /* acknowledge all SBI interrupts */ 844 uss820dci_update_shared_1(sc, USS820_SBI, 0, 0); 845 846 /* acknowledge all SBI1 interrupts */ 847 uss820dci_update_shared_1(sc, USS820_SBI1, 0, 0); 848 849 if (sc->sc_xfer_complete != 0) { 850 sc->sc_xfer_complete = 0; 851 852 /* complete FIFOs, if any */ 853 uss820dci_interrupt_complete_locked(sc); 854 } 855 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 856 USB_BUS_UNLOCK(&sc->sc_bus); 857 } 858 859 static void 860 uss820dci_setup_standard_chain_sub(struct uss820_std_temp *temp) 861 { 862 struct uss820dci_td *td; 863 864 /* get current Transfer Descriptor */ 865 td = temp->td_next; 866 temp->td = td; 867 868 /* prepare for next TD */ 869 temp->td_next = td->obj_next; 870 871 /* fill out the Transfer Descriptor */ 872 td->func = temp->func; 873 td->pc = temp->pc; 874 td->offset = temp->offset; 875 td->remainder = temp->len; 876 td->error = 0; 877 td->did_enable = 0; 878 td->did_stall = temp->did_stall; 879 td->short_pkt = temp->short_pkt; 880 td->alt_next = temp->setup_alt_next; 881 } 882 883 static void 884 uss820dci_setup_standard_chain(struct usb_xfer *xfer) 885 { 886 struct uss820_std_temp temp; 887 struct uss820dci_softc *sc; 888 struct uss820dci_td *td; 889 uint32_t x; 890 uint8_t ep_no; 891 892 DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n", 893 xfer->address, UE_GET_ADDR(xfer->endpointno), 894 xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); 895 896 temp.max_frame_size = xfer->max_frame_size; 897 898 td = xfer->td_start[0]; 899 xfer->td_transfer_first = td; 900 xfer->td_transfer_cache = td; 901 902 /* setup temp */ 903 904 temp.pc = NULL; 905 temp.td = NULL; 906 temp.td_next = xfer->td_start[0]; 907 temp.offset = 0; 908 temp.setup_alt_next = xfer->flags_int.short_frames_ok || 909 xfer->flags_int.isochronous_xfr; 910 temp.did_stall = !xfer->flags_int.control_stall; 911 912 sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 913 ep_no = (xfer->endpointno & UE_ADDR); 914 915 /* check if we should prepend a setup message */ 916 917 if (xfer->flags_int.control_xfr) { 918 if (xfer->flags_int.control_hdr) { 919 920 temp.func = &uss820dci_setup_rx; 921 temp.len = xfer->frlengths[0]; 922 temp.pc = xfer->frbuffers + 0; 923 temp.short_pkt = temp.len ? 1 : 0; 924 /* check for last frame */ 925 if (xfer->nframes == 1) { 926 /* no STATUS stage yet, SETUP is last */ 927 if (xfer->flags_int.control_act) 928 temp.setup_alt_next = 0; 929 } 930 931 uss820dci_setup_standard_chain_sub(&temp); 932 } 933 x = 1; 934 } else { 935 x = 0; 936 } 937 938 if (x != xfer->nframes) { 939 if (xfer->endpointno & UE_DIR_IN) { 940 temp.func = &uss820dci_data_tx; 941 } else { 942 temp.func = &uss820dci_data_rx; 943 } 944 945 /* setup "pc" pointer */ 946 temp.pc = xfer->frbuffers + x; 947 } 948 while (x != xfer->nframes) { 949 950 /* DATA0 / DATA1 message */ 951 952 temp.len = xfer->frlengths[x]; 953 954 x++; 955 956 if (x == xfer->nframes) { 957 if (xfer->flags_int.control_xfr) { 958 if (xfer->flags_int.control_act) { 959 temp.setup_alt_next = 0; 960 } 961 } else { 962 temp.setup_alt_next = 0; 963 } 964 } 965 if (temp.len == 0) { 966 967 /* make sure that we send an USB packet */ 968 969 temp.short_pkt = 0; 970 971 } else { 972 973 /* regular data transfer */ 974 975 temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1; 976 } 977 978 uss820dci_setup_standard_chain_sub(&temp); 979 980 if (xfer->flags_int.isochronous_xfr) { 981 temp.offset += temp.len; 982 } else { 983 /* get next Page Cache pointer */ 984 temp.pc = xfer->frbuffers + x; 985 } 986 } 987 988 /* check for control transfer */ 989 if (xfer->flags_int.control_xfr) { 990 uint8_t need_sync; 991 992 /* always setup a valid "pc" pointer for status and sync */ 993 temp.pc = xfer->frbuffers + 0; 994 temp.len = 0; 995 temp.short_pkt = 0; 996 temp.setup_alt_next = 0; 997 998 /* check if we should append a status stage */ 999 if (!xfer->flags_int.control_act) { 1000 1001 /* 1002 * Send a DATA1 message and invert the current 1003 * endpoint direction. 1004 */ 1005 if (xfer->endpointno & UE_DIR_IN) { 1006 temp.func = &uss820dci_data_rx; 1007 need_sync = 0; 1008 } else { 1009 temp.func = &uss820dci_data_tx; 1010 need_sync = 1; 1011 } 1012 temp.len = 0; 1013 temp.short_pkt = 0; 1014 1015 uss820dci_setup_standard_chain_sub(&temp); 1016 if (need_sync) { 1017 /* we need a SYNC point after TX */ 1018 temp.func = &uss820dci_data_tx_sync; 1019 uss820dci_setup_standard_chain_sub(&temp); 1020 } 1021 } 1022 } 1023 /* must have at least one frame! */ 1024 td = temp.td; 1025 xfer->td_transfer_last = td; 1026 } 1027 1028 static void 1029 uss820dci_timeout(void *arg) 1030 { 1031 struct usb_xfer *xfer = arg; 1032 1033 DPRINTF("xfer=%p\n", xfer); 1034 1035 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1036 1037 /* transfer is transferred */ 1038 uss820dci_device_done(xfer, USB_ERR_TIMEOUT); 1039 } 1040 1041 static void 1042 uss820dci_intr_set(struct usb_xfer *xfer, uint8_t set) 1043 { 1044 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 1045 uint8_t ep_no = (xfer->endpointno & UE_ADDR); 1046 uint8_t ep_reg; 1047 uint8_t temp; 1048 1049 DPRINTFN(15, "endpoint 0x%02x\n", xfer->endpointno); 1050 1051 if (ep_no > 3) { 1052 ep_reg = USS820_SBIE1; 1053 } else { 1054 ep_reg = USS820_SBIE; 1055 } 1056 1057 ep_no &= 3; 1058 ep_no = 1 << (2 * ep_no); 1059 1060 if (xfer->flags_int.control_xfr) { 1061 if (xfer->flags_int.control_hdr) { 1062 ep_no <<= 1; /* RX interrupt only */ 1063 } else { 1064 ep_no |= (ep_no << 1); /* RX and TX interrupt */ 1065 } 1066 } else { 1067 if (!(xfer->endpointno & UE_DIR_IN)) { 1068 ep_no <<= 1; 1069 } 1070 } 1071 temp = USS820_READ_1(sc, ep_reg); 1072 if (set) { 1073 temp |= ep_no; 1074 } else { 1075 temp &= ~ep_no; 1076 } 1077 USS820_WRITE_1(sc, ep_reg, temp); 1078 } 1079 1080 static void 1081 uss820dci_start_standard_chain(struct usb_xfer *xfer) 1082 { 1083 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 1084 1085 DPRINTFN(9, "\n"); 1086 1087 USB_BUS_SPIN_LOCK(&sc->sc_bus); 1088 1089 /* poll one time */ 1090 uss820dci_xfer_do_fifo(xfer); 1091 1092 if (uss820dci_xfer_do_complete(xfer) == 0) { 1093 /* 1094 * Only enable the endpoint interrupt when we are 1095 * actually waiting for data, hence we are dealing 1096 * with level triggered interrupts ! 1097 */ 1098 uss820dci_intr_set(xfer, 1); 1099 1100 /* put transfer on interrupt queue */ 1101 usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); 1102 1103 /* start timeout, if any */ 1104 if (xfer->timeout != 0) { 1105 usbd_transfer_timeout_ms(xfer, 1106 &uss820dci_timeout, xfer->timeout); 1107 } 1108 } 1109 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 1110 } 1111 1112 static void 1113 uss820dci_root_intr(struct uss820dci_softc *sc) 1114 { 1115 DPRINTFN(9, "\n"); 1116 1117 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1118 1119 /* set port bit */ 1120 sc->sc_hub_idata[0] = 0x02; /* we only have one port */ 1121 1122 uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, 1123 sizeof(sc->sc_hub_idata)); 1124 } 1125 1126 static usb_error_t 1127 uss820dci_standard_done_sub(struct usb_xfer *xfer) 1128 { 1129 struct uss820dci_td *td; 1130 uint32_t len; 1131 uint8_t error; 1132 1133 DPRINTFN(9, "\n"); 1134 1135 td = xfer->td_transfer_cache; 1136 1137 do { 1138 len = td->remainder; 1139 1140 if (xfer->aframes != xfer->nframes) { 1141 /* 1142 * Verify the length and subtract 1143 * the remainder from "frlengths[]": 1144 */ 1145 if (len > xfer->frlengths[xfer->aframes]) { 1146 td->error = 1; 1147 } else { 1148 xfer->frlengths[xfer->aframes] -= len; 1149 } 1150 } 1151 /* Check for transfer error */ 1152 if (td->error) { 1153 /* the transfer is finished */ 1154 error = 1; 1155 td = NULL; 1156 break; 1157 } 1158 /* Check for short transfer */ 1159 if (len > 0) { 1160 if (xfer->flags_int.short_frames_ok || 1161 xfer->flags_int.isochronous_xfr) { 1162 /* follow alt next */ 1163 if (td->alt_next) { 1164 td = td->obj_next; 1165 } else { 1166 td = NULL; 1167 } 1168 } else { 1169 /* the transfer is finished */ 1170 td = NULL; 1171 } 1172 error = 0; 1173 break; 1174 } 1175 td = td->obj_next; 1176 1177 /* this USB frame is complete */ 1178 error = 0; 1179 break; 1180 1181 } while (0); 1182 1183 /* update transfer cache */ 1184 1185 xfer->td_transfer_cache = td; 1186 1187 return (error ? 1188 USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION); 1189 } 1190 1191 static void 1192 uss820dci_standard_done(struct usb_xfer *xfer) 1193 { 1194 usb_error_t err = 0; 1195 1196 DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n", 1197 xfer, xfer->endpoint); 1198 1199 /* reset scanner */ 1200 1201 xfer->td_transfer_cache = xfer->td_transfer_first; 1202 1203 if (xfer->flags_int.control_xfr) { 1204 1205 if (xfer->flags_int.control_hdr) { 1206 1207 err = uss820dci_standard_done_sub(xfer); 1208 } 1209 xfer->aframes = 1; 1210 1211 if (xfer->td_transfer_cache == NULL) { 1212 goto done; 1213 } 1214 } 1215 while (xfer->aframes != xfer->nframes) { 1216 1217 err = uss820dci_standard_done_sub(xfer); 1218 xfer->aframes++; 1219 1220 if (xfer->td_transfer_cache == NULL) { 1221 goto done; 1222 } 1223 } 1224 1225 if (xfer->flags_int.control_xfr && 1226 !xfer->flags_int.control_act) { 1227 1228 err = uss820dci_standard_done_sub(xfer); 1229 } 1230 done: 1231 uss820dci_device_done(xfer, err); 1232 } 1233 1234 /*------------------------------------------------------------------------* 1235 * uss820dci_device_done 1236 * 1237 * NOTE: this function can be called more than one time on the 1238 * same USB transfer! 1239 *------------------------------------------------------------------------*/ 1240 static void 1241 uss820dci_device_done(struct usb_xfer *xfer, usb_error_t error) 1242 { 1243 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 1244 1245 USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); 1246 1247 DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n", 1248 xfer, xfer->endpoint, error); 1249 1250 USB_BUS_SPIN_LOCK(&sc->sc_bus); 1251 1252 if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) { 1253 uss820dci_intr_set(xfer, 0); 1254 } 1255 /* dequeue transfer and start next transfer */ 1256 usbd_transfer_done(xfer, error); 1257 1258 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 1259 } 1260 1261 static void 1262 uss820dci_xfer_stall(struct usb_xfer *xfer) 1263 { 1264 uss820dci_device_done(xfer, USB_ERR_STALLED); 1265 } 1266 1267 static void 1268 uss820dci_set_stall(struct usb_device *udev, 1269 struct usb_endpoint *ep, uint8_t *did_stall) 1270 { 1271 struct uss820dci_softc *sc; 1272 uint8_t ep_no; 1273 uint8_t ep_type; 1274 uint8_t ep_dir; 1275 uint8_t temp; 1276 1277 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1278 1279 DPRINTFN(5, "endpoint=%p\n", ep); 1280 1281 /* set FORCESTALL */ 1282 sc = USS820_DCI_BUS2SC(udev->bus); 1283 ep_no = (ep->edesc->bEndpointAddress & UE_ADDR); 1284 ep_dir = (ep->edesc->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT)); 1285 ep_type = (ep->edesc->bmAttributes & UE_XFERTYPE); 1286 1287 if (ep_type == UE_CONTROL) { 1288 /* should not happen */ 1289 return; 1290 } 1291 USB_BUS_SPIN_LOCK(&sc->sc_bus); 1292 USS820_WRITE_1(sc, USS820_EPINDEX, ep_no); 1293 1294 if (ep_dir == UE_DIR_IN) { 1295 temp = USS820_EPCON_TXSTL; 1296 } else { 1297 temp = USS820_EPCON_RXSTL; 1298 } 1299 uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, temp); 1300 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 1301 } 1302 1303 static void 1304 uss820dci_clear_stall_sub(struct uss820dci_softc *sc, 1305 uint8_t ep_no, uint8_t ep_type, uint8_t ep_dir) 1306 { 1307 uint8_t temp; 1308 1309 if (ep_type == UE_CONTROL) { 1310 /* clearing stall is not needed */ 1311 return; 1312 } 1313 USB_BUS_SPIN_LOCK(&sc->sc_bus); 1314 1315 /* select endpoint index */ 1316 USS820_WRITE_1(sc, USS820_EPINDEX, ep_no); 1317 1318 /* clear stall and disable I/O transfers */ 1319 if (ep_dir == UE_DIR_IN) { 1320 temp = 0xFF ^ (USS820_EPCON_TXOE | 1321 USS820_EPCON_TXSTL); 1322 } else { 1323 temp = 0xFF ^ (USS820_EPCON_RXIE | 1324 USS820_EPCON_RXSTL); 1325 } 1326 uss820dci_update_shared_1(sc, USS820_EPCON, temp, 0); 1327 1328 if (ep_dir == UE_DIR_IN) { 1329 /* reset data toggle */ 1330 USS820_WRITE_1(sc, USS820_TXSTAT, 1331 USS820_TXSTAT_TXSOVW); 1332 1333 /* reset FIFO */ 1334 temp = USS820_READ_1(sc, USS820_TXCON); 1335 temp |= USS820_TXCON_TXCLR; 1336 USS820_WRITE_1(sc, USS820_TXCON, temp); 1337 temp &= ~USS820_TXCON_TXCLR; 1338 USS820_WRITE_1(sc, USS820_TXCON, temp); 1339 } else { 1340 1341 /* reset data toggle */ 1342 uss820dci_update_shared_1(sc, USS820_RXSTAT, 1343 0, USS820_RXSTAT_RXSOVW); 1344 1345 /* reset FIFO */ 1346 temp = USS820_READ_1(sc, USS820_RXCON); 1347 temp |= USS820_RXCON_RXCLR; 1348 temp &= ~USS820_RXCON_RXFFRC; 1349 USS820_WRITE_1(sc, USS820_RXCON, temp); 1350 temp &= ~USS820_RXCON_RXCLR; 1351 USS820_WRITE_1(sc, USS820_RXCON, temp); 1352 } 1353 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 1354 } 1355 1356 static void 1357 uss820dci_clear_stall(struct usb_device *udev, struct usb_endpoint *ep) 1358 { 1359 struct uss820dci_softc *sc; 1360 struct usb_endpoint_descriptor *ed; 1361 1362 USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); 1363 1364 DPRINTFN(5, "endpoint=%p\n", ep); 1365 1366 /* check mode */ 1367 if (udev->flags.usb_mode != USB_MODE_DEVICE) { 1368 /* not supported */ 1369 return; 1370 } 1371 /* get softc */ 1372 sc = USS820_DCI_BUS2SC(udev->bus); 1373 1374 /* get endpoint descriptor */ 1375 ed = ep->edesc; 1376 1377 /* reset endpoint */ 1378 uss820dci_clear_stall_sub(sc, 1379 (ed->bEndpointAddress & UE_ADDR), 1380 (ed->bmAttributes & UE_XFERTYPE), 1381 (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT))); 1382 } 1383 1384 usb_error_t 1385 uss820dci_init(struct uss820dci_softc *sc) 1386 { 1387 const struct usb_hw_ep_profile *pf; 1388 uint8_t n; 1389 uint8_t temp; 1390 1391 DPRINTF("start\n"); 1392 1393 /* set up the bus structure */ 1394 sc->sc_bus.usbrev = USB_REV_1_1; 1395 sc->sc_bus.methods = &uss820dci_bus_methods; 1396 1397 USB_BUS_LOCK(&sc->sc_bus); 1398 1399 /* we always have VBUS */ 1400 sc->sc_flags.status_vbus = 1; 1401 1402 /* reset the chip */ 1403 USS820_WRITE_1(sc, USS820_SCR, USS820_SCR_SRESET); 1404 DELAY(100); 1405 USS820_WRITE_1(sc, USS820_SCR, 0); 1406 1407 /* wait for reset to complete */ 1408 for (n = 0;; n++) { 1409 1410 temp = USS820_READ_1(sc, USS820_MCSR); 1411 1412 if (temp & USS820_MCSR_INIT) { 1413 break; 1414 } 1415 if (n == 100) { 1416 USB_BUS_UNLOCK(&sc->sc_bus); 1417 return (USB_ERR_INVAL); 1418 } 1419 /* wait a little for things to stabilise */ 1420 DELAY(100); 1421 } 1422 1423 /* do a pulldown */ 1424 uss820dci_pull_down(sc); 1425 1426 /* wait 10ms for pulldown to stabilise */ 1427 usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); 1428 1429 /* check hardware revision */ 1430 temp = USS820_READ_1(sc, USS820_REV); 1431 1432 if (temp < 0x13) { 1433 USB_BUS_UNLOCK(&sc->sc_bus); 1434 return (USB_ERR_INVAL); 1435 } 1436 /* enable interrupts */ 1437 USS820_WRITE_1(sc, USS820_SCR, 1438 USS820_SCR_T_IRQ | 1439 USS820_SCR_IE_RESET | 1440 /* USS820_SCR_RWUPE | */ 1441 USS820_SCR_IE_SUSP | 1442 USS820_SCR_IRQPOL); 1443 1444 /* enable interrupts */ 1445 USS820_WRITE_1(sc, USS820_SCRATCH, 1446 USS820_SCRATCH_IE_RESUME); 1447 1448 /* enable features */ 1449 USS820_WRITE_1(sc, USS820_MCSR, 1450 USS820_MCSR_BDFEAT | 1451 USS820_MCSR_FEAT); 1452 1453 sc->sc_flags.mcsr_feat = 1; 1454 1455 /* disable interrupts */ 1456 USS820_WRITE_1(sc, USS820_SBIE, 0); 1457 1458 /* disable interrupts */ 1459 USS820_WRITE_1(sc, USS820_SBIE1, 0); 1460 1461 /* disable all endpoints */ 1462 for (n = 0; n != USS820_EP_MAX; n++) { 1463 1464 /* select endpoint */ 1465 USS820_WRITE_1(sc, USS820_EPINDEX, n); 1466 1467 /* disable endpoint */ 1468 uss820dci_update_shared_1(sc, USS820_EPCON, 0, 0); 1469 } 1470 1471 /* 1472 * Initialise default values for some registers that cannot be 1473 * changed during operation! 1474 */ 1475 for (n = 0; n != USS820_EP_MAX; n++) { 1476 1477 uss820dci_get_hw_ep_profile(NULL, &pf, n); 1478 1479 /* the maximum frame sizes should be the same */ 1480 if (pf->max_in_frame_size != pf->max_out_frame_size) { 1481 DPRINTF("Max frame size mismatch %u != %u\n", 1482 pf->max_in_frame_size, pf->max_out_frame_size); 1483 } 1484 if (pf->support_isochronous) { 1485 if (pf->max_in_frame_size <= 64) { 1486 temp = (USS820_TXCON_FFSZ_16_64 | 1487 USS820_TXCON_TXISO | 1488 USS820_TXCON_ATM); 1489 } else if (pf->max_in_frame_size <= 256) { 1490 temp = (USS820_TXCON_FFSZ_64_256 | 1491 USS820_TXCON_TXISO | 1492 USS820_TXCON_ATM); 1493 } else if (pf->max_in_frame_size <= 512) { 1494 temp = (USS820_TXCON_FFSZ_8_512 | 1495 USS820_TXCON_TXISO | 1496 USS820_TXCON_ATM); 1497 } else { /* 1024 bytes */ 1498 temp = (USS820_TXCON_FFSZ_32_1024 | 1499 USS820_TXCON_TXISO | 1500 USS820_TXCON_ATM); 1501 } 1502 } else { 1503 if ((pf->max_in_frame_size <= 8) && 1504 (sc->sc_flags.mcsr_feat)) { 1505 temp = (USS820_TXCON_FFSZ_8_512 | 1506 USS820_TXCON_ATM); 1507 } else if (pf->max_in_frame_size <= 16) { 1508 temp = (USS820_TXCON_FFSZ_16_64 | 1509 USS820_TXCON_ATM); 1510 } else if ((pf->max_in_frame_size <= 32) && 1511 (sc->sc_flags.mcsr_feat)) { 1512 temp = (USS820_TXCON_FFSZ_32_1024 | 1513 USS820_TXCON_ATM); 1514 } else { /* 64 bytes */ 1515 temp = (USS820_TXCON_FFSZ_64_256 | 1516 USS820_TXCON_ATM); 1517 } 1518 } 1519 1520 /* need to configure the chip early */ 1521 1522 USS820_WRITE_1(sc, USS820_EPINDEX, n); 1523 USS820_WRITE_1(sc, USS820_TXCON, temp); 1524 USS820_WRITE_1(sc, USS820_RXCON, temp); 1525 1526 if (pf->support_control) { 1527 temp = USS820_EPCON_CTLEP | 1528 USS820_EPCON_RXSPM | 1529 USS820_EPCON_RXIE | 1530 USS820_EPCON_RXEPEN | 1531 USS820_EPCON_TXOE | 1532 USS820_EPCON_TXEPEN; 1533 } else { 1534 temp = USS820_EPCON_RXEPEN | USS820_EPCON_TXEPEN; 1535 } 1536 1537 uss820dci_update_shared_1(sc, USS820_EPCON, 0, temp); 1538 } 1539 1540 USB_BUS_UNLOCK(&sc->sc_bus); 1541 1542 /* catch any lost interrupts */ 1543 1544 uss820dci_do_poll(&sc->sc_bus); 1545 1546 return (0); /* success */ 1547 } 1548 1549 void 1550 uss820dci_uninit(struct uss820dci_softc *sc) 1551 { 1552 uint8_t temp; 1553 1554 USB_BUS_LOCK(&sc->sc_bus); 1555 1556 /* disable all interrupts */ 1557 temp = USS820_READ_1(sc, USS820_SCR); 1558 temp &= ~USS820_SCR_T_IRQ; 1559 USS820_WRITE_1(sc, USS820_SCR, temp); 1560 1561 sc->sc_flags.port_powered = 0; 1562 sc->sc_flags.status_vbus = 0; 1563 sc->sc_flags.status_bus_reset = 0; 1564 sc->sc_flags.status_suspend = 0; 1565 sc->sc_flags.change_suspend = 0; 1566 sc->sc_flags.change_connect = 1; 1567 1568 uss820dci_pull_down(sc); 1569 USB_BUS_UNLOCK(&sc->sc_bus); 1570 } 1571 1572 static void 1573 uss820dci_suspend(struct uss820dci_softc *sc) 1574 { 1575 /* TODO */ 1576 } 1577 1578 static void 1579 uss820dci_resume(struct uss820dci_softc *sc) 1580 { 1581 /* TODO */ 1582 } 1583 1584 static void 1585 uss820dci_do_poll(struct usb_bus *bus) 1586 { 1587 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus); 1588 1589 USB_BUS_LOCK(&sc->sc_bus); 1590 USB_BUS_SPIN_LOCK(&sc->sc_bus); 1591 uss820dci_interrupt_poll_locked(sc); 1592 uss820dci_interrupt_complete_locked(sc); 1593 USB_BUS_SPIN_UNLOCK(&sc->sc_bus); 1594 USB_BUS_UNLOCK(&sc->sc_bus); 1595 } 1596 1597 /*------------------------------------------------------------------------* 1598 * uss820dci bulk support 1599 *------------------------------------------------------------------------*/ 1600 static void 1601 uss820dci_device_bulk_open(struct usb_xfer *xfer) 1602 { 1603 return; 1604 } 1605 1606 static void 1607 uss820dci_device_bulk_close(struct usb_xfer *xfer) 1608 { 1609 uss820dci_device_done(xfer, USB_ERR_CANCELLED); 1610 } 1611 1612 static void 1613 uss820dci_device_bulk_enter(struct usb_xfer *xfer) 1614 { 1615 return; 1616 } 1617 1618 static void 1619 uss820dci_device_bulk_start(struct usb_xfer *xfer) 1620 { 1621 /* setup TDs */ 1622 uss820dci_setup_standard_chain(xfer); 1623 uss820dci_start_standard_chain(xfer); 1624 } 1625 1626 static const struct usb_pipe_methods uss820dci_device_bulk_methods = 1627 { 1628 .open = uss820dci_device_bulk_open, 1629 .close = uss820dci_device_bulk_close, 1630 .enter = uss820dci_device_bulk_enter, 1631 .start = uss820dci_device_bulk_start, 1632 }; 1633 1634 /*------------------------------------------------------------------------* 1635 * uss820dci control support 1636 *------------------------------------------------------------------------*/ 1637 static void 1638 uss820dci_device_ctrl_open(struct usb_xfer *xfer) 1639 { 1640 return; 1641 } 1642 1643 static void 1644 uss820dci_device_ctrl_close(struct usb_xfer *xfer) 1645 { 1646 uss820dci_device_done(xfer, USB_ERR_CANCELLED); 1647 } 1648 1649 static void 1650 uss820dci_device_ctrl_enter(struct usb_xfer *xfer) 1651 { 1652 return; 1653 } 1654 1655 static void 1656 uss820dci_device_ctrl_start(struct usb_xfer *xfer) 1657 { 1658 /* setup TDs */ 1659 uss820dci_setup_standard_chain(xfer); 1660 uss820dci_start_standard_chain(xfer); 1661 } 1662 1663 static const struct usb_pipe_methods uss820dci_device_ctrl_methods = 1664 { 1665 .open = uss820dci_device_ctrl_open, 1666 .close = uss820dci_device_ctrl_close, 1667 .enter = uss820dci_device_ctrl_enter, 1668 .start = uss820dci_device_ctrl_start, 1669 }; 1670 1671 /*------------------------------------------------------------------------* 1672 * uss820dci interrupt support 1673 *------------------------------------------------------------------------*/ 1674 static void 1675 uss820dci_device_intr_open(struct usb_xfer *xfer) 1676 { 1677 return; 1678 } 1679 1680 static void 1681 uss820dci_device_intr_close(struct usb_xfer *xfer) 1682 { 1683 uss820dci_device_done(xfer, USB_ERR_CANCELLED); 1684 } 1685 1686 static void 1687 uss820dci_device_intr_enter(struct usb_xfer *xfer) 1688 { 1689 return; 1690 } 1691 1692 static void 1693 uss820dci_device_intr_start(struct usb_xfer *xfer) 1694 { 1695 /* setup TDs */ 1696 uss820dci_setup_standard_chain(xfer); 1697 uss820dci_start_standard_chain(xfer); 1698 } 1699 1700 static const struct usb_pipe_methods uss820dci_device_intr_methods = 1701 { 1702 .open = uss820dci_device_intr_open, 1703 .close = uss820dci_device_intr_close, 1704 .enter = uss820dci_device_intr_enter, 1705 .start = uss820dci_device_intr_start, 1706 }; 1707 1708 /*------------------------------------------------------------------------* 1709 * uss820dci full speed isochronous support 1710 *------------------------------------------------------------------------*/ 1711 static void 1712 uss820dci_device_isoc_fs_open(struct usb_xfer *xfer) 1713 { 1714 return; 1715 } 1716 1717 static void 1718 uss820dci_device_isoc_fs_close(struct usb_xfer *xfer) 1719 { 1720 uss820dci_device_done(xfer, USB_ERR_CANCELLED); 1721 } 1722 1723 static void 1724 uss820dci_device_isoc_fs_enter(struct usb_xfer *xfer) 1725 { 1726 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus); 1727 uint32_t temp; 1728 uint32_t nframes; 1729 1730 DPRINTFN(6, "xfer=%p next=%d nframes=%d\n", 1731 xfer, xfer->endpoint->isoc_next, xfer->nframes); 1732 1733 /* get the current frame index - we don't need the high bits */ 1734 1735 nframes = USS820_READ_1(sc, USS820_SOFL); 1736 1737 /* 1738 * check if the frame index is within the window where the 1739 * frames will be inserted 1740 */ 1741 temp = (nframes - xfer->endpoint->isoc_next) & USS820_SOFL_MASK; 1742 1743 if ((xfer->endpoint->is_synced == 0) || 1744 (temp < xfer->nframes)) { 1745 /* 1746 * If there is data underflow or the pipe queue is 1747 * empty we schedule the transfer a few frames ahead 1748 * of the current frame position. Else two isochronous 1749 * transfers might overlap. 1750 */ 1751 xfer->endpoint->isoc_next = (nframes + 3) & USS820_SOFL_MASK; 1752 xfer->endpoint->is_synced = 1; 1753 DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); 1754 } 1755 /* 1756 * compute how many milliseconds the insertion is ahead of the 1757 * current frame position: 1758 */ 1759 temp = (xfer->endpoint->isoc_next - nframes) & USS820_SOFL_MASK; 1760 1761 /* 1762 * pre-compute when the isochronous transfer will be finished: 1763 */ 1764 xfer->isoc_time_complete = 1765 usb_isoc_time_expand(&sc->sc_bus, nframes) + temp + 1766 xfer->nframes; 1767 1768 /* compute frame number for next insertion */ 1769 xfer->endpoint->isoc_next += xfer->nframes; 1770 1771 /* setup TDs */ 1772 uss820dci_setup_standard_chain(xfer); 1773 } 1774 1775 static void 1776 uss820dci_device_isoc_fs_start(struct usb_xfer *xfer) 1777 { 1778 /* start TD chain */ 1779 uss820dci_start_standard_chain(xfer); 1780 } 1781 1782 static const struct usb_pipe_methods uss820dci_device_isoc_fs_methods = 1783 { 1784 .open = uss820dci_device_isoc_fs_open, 1785 .close = uss820dci_device_isoc_fs_close, 1786 .enter = uss820dci_device_isoc_fs_enter, 1787 .start = uss820dci_device_isoc_fs_start, 1788 }; 1789 1790 /*------------------------------------------------------------------------* 1791 * uss820dci root control support 1792 *------------------------------------------------------------------------* 1793 * Simulate a hardware HUB by handling all the necessary requests. 1794 *------------------------------------------------------------------------*/ 1795 1796 static const struct usb_device_descriptor uss820dci_devd = { 1797 .bLength = sizeof(struct usb_device_descriptor), 1798 .bDescriptorType = UDESC_DEVICE, 1799 .bcdUSB = {0x00, 0x02}, 1800 .bDeviceClass = UDCLASS_HUB, 1801 .bDeviceSubClass = UDSUBCLASS_HUB, 1802 .bDeviceProtocol = UDPROTO_FSHUB, 1803 .bMaxPacketSize = 64, 1804 .bcdDevice = {0x00, 0x01}, 1805 .iManufacturer = 1, 1806 .iProduct = 2, 1807 .bNumConfigurations = 1, 1808 }; 1809 1810 static const struct usb_device_qualifier uss820dci_odevd = { 1811 .bLength = sizeof(struct usb_device_qualifier), 1812 .bDescriptorType = UDESC_DEVICE_QUALIFIER, 1813 .bcdUSB = {0x00, 0x02}, 1814 .bDeviceClass = UDCLASS_HUB, 1815 .bDeviceSubClass = UDSUBCLASS_HUB, 1816 .bDeviceProtocol = UDPROTO_FSHUB, 1817 .bMaxPacketSize0 = 0, 1818 .bNumConfigurations = 0, 1819 }; 1820 1821 static const struct uss820dci_config_desc uss820dci_confd = { 1822 .confd = { 1823 .bLength = sizeof(struct usb_config_descriptor), 1824 .bDescriptorType = UDESC_CONFIG, 1825 .wTotalLength[0] = sizeof(uss820dci_confd), 1826 .bNumInterface = 1, 1827 .bConfigurationValue = 1, 1828 .iConfiguration = 0, 1829 .bmAttributes = UC_SELF_POWERED, 1830 .bMaxPower = 0, 1831 }, 1832 .ifcd = { 1833 .bLength = sizeof(struct usb_interface_descriptor), 1834 .bDescriptorType = UDESC_INTERFACE, 1835 .bNumEndpoints = 1, 1836 .bInterfaceClass = UICLASS_HUB, 1837 .bInterfaceSubClass = UISUBCLASS_HUB, 1838 .bInterfaceProtocol = 0, 1839 }, 1840 1841 .endpd = { 1842 .bLength = sizeof(struct usb_endpoint_descriptor), 1843 .bDescriptorType = UDESC_ENDPOINT, 1844 .bEndpointAddress = (UE_DIR_IN | USS820_DCI_INTR_ENDPT), 1845 .bmAttributes = UE_INTERRUPT, 1846 .wMaxPacketSize[0] = 8, 1847 .bInterval = 255, 1848 }, 1849 }; 1850 1851 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) } 1852 1853 static const struct usb_hub_descriptor_min uss820dci_hubd = { 1854 .bDescLength = sizeof(uss820dci_hubd), 1855 .bDescriptorType = UDESC_HUB, 1856 .bNbrPorts = 1, 1857 HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)), 1858 .bPwrOn2PwrGood = 50, 1859 .bHubContrCurrent = 0, 1860 .DeviceRemovable = {0}, /* port is removable */ 1861 }; 1862 1863 #define STRING_VENDOR \ 1864 "A\0G\0E\0R\0E" 1865 1866 #define STRING_PRODUCT \ 1867 "D\0C\0I\0 \0R\0o\0o\0t\0 \0H\0U\0B" 1868 1869 USB_MAKE_STRING_DESC(STRING_VENDOR, uss820dci_vendor); 1870 USB_MAKE_STRING_DESC(STRING_PRODUCT, uss820dci_product); 1871 1872 static usb_error_t 1873 uss820dci_roothub_exec(struct usb_device *udev, 1874 struct usb_device_request *req, const void **pptr, uint16_t *plength) 1875 { 1876 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(udev->bus); 1877 const void *ptr; 1878 uint16_t len; 1879 uint16_t value; 1880 uint16_t index; 1881 usb_error_t err; 1882 1883 USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); 1884 1885 /* buffer reset */ 1886 ptr = (const void *)&sc->sc_hub_temp; 1887 len = 0; 1888 err = 0; 1889 1890 value = UGETW(req->wValue); 1891 index = UGETW(req->wIndex); 1892 1893 /* demultiplex the control request */ 1894 1895 switch (req->bmRequestType) { 1896 case UT_READ_DEVICE: 1897 switch (req->bRequest) { 1898 case UR_GET_DESCRIPTOR: 1899 goto tr_handle_get_descriptor; 1900 case UR_GET_CONFIG: 1901 goto tr_handle_get_config; 1902 case UR_GET_STATUS: 1903 goto tr_handle_get_status; 1904 default: 1905 goto tr_stalled; 1906 } 1907 break; 1908 1909 case UT_WRITE_DEVICE: 1910 switch (req->bRequest) { 1911 case UR_SET_ADDRESS: 1912 goto tr_handle_set_address; 1913 case UR_SET_CONFIG: 1914 goto tr_handle_set_config; 1915 case UR_CLEAR_FEATURE: 1916 goto tr_valid; /* nop */ 1917 case UR_SET_DESCRIPTOR: 1918 goto tr_valid; /* nop */ 1919 case UR_SET_FEATURE: 1920 default: 1921 goto tr_stalled; 1922 } 1923 break; 1924 1925 case UT_WRITE_ENDPOINT: 1926 switch (req->bRequest) { 1927 case UR_CLEAR_FEATURE: 1928 switch (UGETW(req->wValue)) { 1929 case UF_ENDPOINT_HALT: 1930 goto tr_handle_clear_halt; 1931 case UF_DEVICE_REMOTE_WAKEUP: 1932 goto tr_handle_clear_wakeup; 1933 default: 1934 goto tr_stalled; 1935 } 1936 break; 1937 case UR_SET_FEATURE: 1938 switch (UGETW(req->wValue)) { 1939 case UF_ENDPOINT_HALT: 1940 goto tr_handle_set_halt; 1941 case UF_DEVICE_REMOTE_WAKEUP: 1942 goto tr_handle_set_wakeup; 1943 default: 1944 goto tr_stalled; 1945 } 1946 break; 1947 case UR_SYNCH_FRAME: 1948 goto tr_valid; /* nop */ 1949 default: 1950 goto tr_stalled; 1951 } 1952 break; 1953 1954 case UT_READ_ENDPOINT: 1955 switch (req->bRequest) { 1956 case UR_GET_STATUS: 1957 goto tr_handle_get_ep_status; 1958 default: 1959 goto tr_stalled; 1960 } 1961 break; 1962 1963 case UT_WRITE_INTERFACE: 1964 switch (req->bRequest) { 1965 case UR_SET_INTERFACE: 1966 goto tr_handle_set_interface; 1967 case UR_CLEAR_FEATURE: 1968 goto tr_valid; /* nop */ 1969 case UR_SET_FEATURE: 1970 default: 1971 goto tr_stalled; 1972 } 1973 break; 1974 1975 case UT_READ_INTERFACE: 1976 switch (req->bRequest) { 1977 case UR_GET_INTERFACE: 1978 goto tr_handle_get_interface; 1979 case UR_GET_STATUS: 1980 goto tr_handle_get_iface_status; 1981 default: 1982 goto tr_stalled; 1983 } 1984 break; 1985 1986 case UT_WRITE_CLASS_INTERFACE: 1987 case UT_WRITE_VENDOR_INTERFACE: 1988 /* XXX forward */ 1989 break; 1990 1991 case UT_READ_CLASS_INTERFACE: 1992 case UT_READ_VENDOR_INTERFACE: 1993 /* XXX forward */ 1994 break; 1995 1996 case UT_WRITE_CLASS_DEVICE: 1997 switch (req->bRequest) { 1998 case UR_CLEAR_FEATURE: 1999 goto tr_valid; 2000 case UR_SET_DESCRIPTOR: 2001 case UR_SET_FEATURE: 2002 break; 2003 default: 2004 goto tr_stalled; 2005 } 2006 break; 2007 2008 case UT_WRITE_CLASS_OTHER: 2009 switch (req->bRequest) { 2010 case UR_CLEAR_FEATURE: 2011 goto tr_handle_clear_port_feature; 2012 case UR_SET_FEATURE: 2013 goto tr_handle_set_port_feature; 2014 case UR_CLEAR_TT_BUFFER: 2015 case UR_RESET_TT: 2016 case UR_STOP_TT: 2017 goto tr_valid; 2018 2019 default: 2020 goto tr_stalled; 2021 } 2022 break; 2023 2024 case UT_READ_CLASS_OTHER: 2025 switch (req->bRequest) { 2026 case UR_GET_TT_STATE: 2027 goto tr_handle_get_tt_state; 2028 case UR_GET_STATUS: 2029 goto tr_handle_get_port_status; 2030 default: 2031 goto tr_stalled; 2032 } 2033 break; 2034 2035 case UT_READ_CLASS_DEVICE: 2036 switch (req->bRequest) { 2037 case UR_GET_DESCRIPTOR: 2038 goto tr_handle_get_class_descriptor; 2039 case UR_GET_STATUS: 2040 goto tr_handle_get_class_status; 2041 2042 default: 2043 goto tr_stalled; 2044 } 2045 break; 2046 default: 2047 goto tr_stalled; 2048 } 2049 goto tr_valid; 2050 2051 tr_handle_get_descriptor: 2052 switch (value >> 8) { 2053 case UDESC_DEVICE: 2054 if (value & 0xff) { 2055 goto tr_stalled; 2056 } 2057 len = sizeof(uss820dci_devd); 2058 ptr = (const void *)&uss820dci_devd; 2059 goto tr_valid; 2060 case UDESC_DEVICE_QUALIFIER: 2061 if (value & 0xff) { 2062 goto tr_stalled; 2063 } 2064 len = sizeof(uss820dci_odevd); 2065 ptr = (const void *)&uss820dci_odevd; 2066 goto tr_valid; 2067 case UDESC_CONFIG: 2068 if (value & 0xff) { 2069 goto tr_stalled; 2070 } 2071 len = sizeof(uss820dci_confd); 2072 ptr = (const void *)&uss820dci_confd; 2073 goto tr_valid; 2074 case UDESC_STRING: 2075 switch (value & 0xff) { 2076 case 0: /* Language table */ 2077 len = sizeof(usb_string_lang_en); 2078 ptr = (const void *)&usb_string_lang_en; 2079 goto tr_valid; 2080 2081 case 1: /* Vendor */ 2082 len = sizeof(uss820dci_vendor); 2083 ptr = (const void *)&uss820dci_vendor; 2084 goto tr_valid; 2085 2086 case 2: /* Product */ 2087 len = sizeof(uss820dci_product); 2088 ptr = (const void *)&uss820dci_product; 2089 goto tr_valid; 2090 default: 2091 break; 2092 } 2093 break; 2094 default: 2095 goto tr_stalled; 2096 } 2097 goto tr_stalled; 2098 2099 tr_handle_get_config: 2100 len = 1; 2101 sc->sc_hub_temp.wValue[0] = sc->sc_conf; 2102 goto tr_valid; 2103 2104 tr_handle_get_status: 2105 len = 2; 2106 USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED); 2107 goto tr_valid; 2108 2109 tr_handle_set_address: 2110 if (value & 0xFF00) { 2111 goto tr_stalled; 2112 } 2113 sc->sc_rt_addr = value; 2114 goto tr_valid; 2115 2116 tr_handle_set_config: 2117 if (value >= 2) { 2118 goto tr_stalled; 2119 } 2120 sc->sc_conf = value; 2121 goto tr_valid; 2122 2123 tr_handle_get_interface: 2124 len = 1; 2125 sc->sc_hub_temp.wValue[0] = 0; 2126 goto tr_valid; 2127 2128 tr_handle_get_tt_state: 2129 tr_handle_get_class_status: 2130 tr_handle_get_iface_status: 2131 tr_handle_get_ep_status: 2132 len = 2; 2133 USETW(sc->sc_hub_temp.wValue, 0); 2134 goto tr_valid; 2135 2136 tr_handle_set_halt: 2137 tr_handle_set_interface: 2138 tr_handle_set_wakeup: 2139 tr_handle_clear_wakeup: 2140 tr_handle_clear_halt: 2141 goto tr_valid; 2142 2143 tr_handle_clear_port_feature: 2144 if (index != 1) { 2145 goto tr_stalled; 2146 } 2147 DPRINTFN(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index); 2148 2149 switch (value) { 2150 case UHF_PORT_SUSPEND: 2151 uss820dci_wakeup_peer(sc); 2152 break; 2153 2154 case UHF_PORT_ENABLE: 2155 sc->sc_flags.port_enabled = 0; 2156 break; 2157 2158 case UHF_PORT_TEST: 2159 case UHF_PORT_INDICATOR: 2160 case UHF_C_PORT_ENABLE: 2161 case UHF_C_PORT_OVER_CURRENT: 2162 case UHF_C_PORT_RESET: 2163 /* nops */ 2164 break; 2165 case UHF_PORT_POWER: 2166 sc->sc_flags.port_powered = 0; 2167 uss820dci_pull_down(sc); 2168 break; 2169 case UHF_C_PORT_CONNECTION: 2170 sc->sc_flags.change_connect = 0; 2171 break; 2172 case UHF_C_PORT_SUSPEND: 2173 sc->sc_flags.change_suspend = 0; 2174 break; 2175 default: 2176 err = USB_ERR_IOERROR; 2177 goto done; 2178 } 2179 goto tr_valid; 2180 2181 tr_handle_set_port_feature: 2182 if (index != 1) { 2183 goto tr_stalled; 2184 } 2185 DPRINTFN(9, "UR_SET_PORT_FEATURE\n"); 2186 2187 switch (value) { 2188 case UHF_PORT_ENABLE: 2189 sc->sc_flags.port_enabled = 1; 2190 break; 2191 case UHF_PORT_SUSPEND: 2192 case UHF_PORT_RESET: 2193 case UHF_PORT_TEST: 2194 case UHF_PORT_INDICATOR: 2195 /* nops */ 2196 break; 2197 case UHF_PORT_POWER: 2198 sc->sc_flags.port_powered = 1; 2199 break; 2200 default: 2201 err = USB_ERR_IOERROR; 2202 goto done; 2203 } 2204 goto tr_valid; 2205 2206 tr_handle_get_port_status: 2207 2208 DPRINTFN(9, "UR_GET_PORT_STATUS\n"); 2209 2210 if (index != 1) { 2211 goto tr_stalled; 2212 } 2213 if (sc->sc_flags.status_vbus) { 2214 uss820dci_pull_up(sc); 2215 } else { 2216 uss820dci_pull_down(sc); 2217 } 2218 2219 /* Select FULL-speed and Device Side Mode */ 2220 2221 value = UPS_PORT_MODE_DEVICE; 2222 2223 if (sc->sc_flags.port_powered) { 2224 value |= UPS_PORT_POWER; 2225 } 2226 if (sc->sc_flags.port_enabled) { 2227 value |= UPS_PORT_ENABLED; 2228 } 2229 if (sc->sc_flags.status_vbus && 2230 sc->sc_flags.status_bus_reset) { 2231 value |= UPS_CURRENT_CONNECT_STATUS; 2232 } 2233 if (sc->sc_flags.status_suspend) { 2234 value |= UPS_SUSPEND; 2235 } 2236 USETW(sc->sc_hub_temp.ps.wPortStatus, value); 2237 2238 value = 0; 2239 2240 if (sc->sc_flags.change_connect) { 2241 value |= UPS_C_CONNECT_STATUS; 2242 } 2243 if (sc->sc_flags.change_suspend) { 2244 value |= UPS_C_SUSPEND; 2245 } 2246 USETW(sc->sc_hub_temp.ps.wPortChange, value); 2247 len = sizeof(sc->sc_hub_temp.ps); 2248 goto tr_valid; 2249 2250 tr_handle_get_class_descriptor: 2251 if (value & 0xFF) { 2252 goto tr_stalled; 2253 } 2254 ptr = (const void *)&uss820dci_hubd; 2255 len = sizeof(uss820dci_hubd); 2256 goto tr_valid; 2257 2258 tr_stalled: 2259 err = USB_ERR_STALLED; 2260 tr_valid: 2261 done: 2262 *plength = len; 2263 *pptr = ptr; 2264 return (err); 2265 } 2266 2267 static void 2268 uss820dci_xfer_setup(struct usb_setup_params *parm) 2269 { 2270 const struct usb_hw_ep_profile *pf; 2271 struct uss820dci_softc *sc; 2272 struct usb_xfer *xfer; 2273 void *last_obj; 2274 uint32_t ntd; 2275 uint32_t n; 2276 uint8_t ep_no; 2277 2278 sc = USS820_DCI_BUS2SC(parm->udev->bus); 2279 xfer = parm->curr_xfer; 2280 2281 /* 2282 * NOTE: This driver does not use any of the parameters that 2283 * are computed from the following values. Just set some 2284 * reasonable dummies: 2285 */ 2286 parm->hc_max_packet_size = 0x500; 2287 parm->hc_max_packet_count = 1; 2288 parm->hc_max_frame_size = 0x500; 2289 2290 usbd_transfer_setup_sub(parm); 2291 2292 /* 2293 * compute maximum number of TDs 2294 */ 2295 if (parm->methods == &uss820dci_device_ctrl_methods) { 2296 2297 ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ; 2298 2299 } else if (parm->methods == &uss820dci_device_bulk_methods) { 2300 2301 ntd = xfer->nframes + 1 /* SYNC */ ; 2302 2303 } else if (parm->methods == &uss820dci_device_intr_methods) { 2304 2305 ntd = xfer->nframes + 1 /* SYNC */ ; 2306 2307 } else if (parm->methods == &uss820dci_device_isoc_fs_methods) { 2308 2309 ntd = xfer->nframes + 1 /* SYNC */ ; 2310 2311 } else { 2312 2313 ntd = 0; 2314 } 2315 2316 /* 2317 * check if "usbd_transfer_setup_sub" set an error 2318 */ 2319 if (parm->err) { 2320 return; 2321 } 2322 /* 2323 * allocate transfer descriptors 2324 */ 2325 last_obj = NULL; 2326 2327 /* 2328 * get profile stuff 2329 */ 2330 if (ntd) { 2331 2332 ep_no = xfer->endpointno & UE_ADDR; 2333 uss820dci_get_hw_ep_profile(parm->udev, &pf, ep_no); 2334 2335 if (pf == NULL) { 2336 /* should not happen */ 2337 parm->err = USB_ERR_INVAL; 2338 return; 2339 } 2340 } else { 2341 ep_no = 0; 2342 pf = NULL; 2343 } 2344 2345 /* align data */ 2346 parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1)); 2347 2348 for (n = 0; n != ntd; n++) { 2349 2350 struct uss820dci_td *td; 2351 2352 if (parm->buf) { 2353 2354 td = USB_ADD_BYTES(parm->buf, parm->size[0]); 2355 2356 /* init TD */ 2357 td->max_packet_size = xfer->max_packet_size; 2358 td->ep_index = ep_no; 2359 if (pf->support_multi_buffer && 2360 (parm->methods != &uss820dci_device_ctrl_methods)) { 2361 td->support_multi_buffer = 1; 2362 } 2363 td->obj_next = last_obj; 2364 2365 last_obj = td; 2366 } 2367 parm->size[0] += sizeof(*td); 2368 } 2369 2370 xfer->td_start[0] = last_obj; 2371 } 2372 2373 static void 2374 uss820dci_xfer_unsetup(struct usb_xfer *xfer) 2375 { 2376 return; 2377 } 2378 2379 static void 2380 uss820dci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, 2381 struct usb_endpoint *ep) 2382 { 2383 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(udev->bus); 2384 2385 DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n", 2386 ep, udev->address, 2387 edesc->bEndpointAddress, udev->flags.usb_mode, 2388 sc->sc_rt_addr); 2389 2390 if (udev->device_index != sc->sc_rt_addr) { 2391 2392 if (udev->speed != USB_SPEED_FULL) { 2393 /* not supported */ 2394 return; 2395 } 2396 switch (edesc->bmAttributes & UE_XFERTYPE) { 2397 case UE_CONTROL: 2398 ep->methods = &uss820dci_device_ctrl_methods; 2399 break; 2400 case UE_INTERRUPT: 2401 ep->methods = &uss820dci_device_intr_methods; 2402 break; 2403 case UE_ISOCHRONOUS: 2404 ep->methods = &uss820dci_device_isoc_fs_methods; 2405 break; 2406 case UE_BULK: 2407 ep->methods = &uss820dci_device_bulk_methods; 2408 break; 2409 default: 2410 /* do nothing */ 2411 break; 2412 } 2413 } 2414 } 2415 2416 static void 2417 uss820dci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) 2418 { 2419 struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus); 2420 2421 switch (state) { 2422 case USB_HW_POWER_SUSPEND: 2423 uss820dci_suspend(sc); 2424 break; 2425 case USB_HW_POWER_SHUTDOWN: 2426 uss820dci_uninit(sc); 2427 break; 2428 case USB_HW_POWER_RESUME: 2429 uss820dci_resume(sc); 2430 break; 2431 default: 2432 break; 2433 } 2434 } 2435 2436 static const struct usb_bus_methods uss820dci_bus_methods = 2437 { 2438 .endpoint_init = &uss820dci_ep_init, 2439 .xfer_setup = &uss820dci_xfer_setup, 2440 .xfer_unsetup = &uss820dci_xfer_unsetup, 2441 .get_hw_ep_profile = &uss820dci_get_hw_ep_profile, 2442 .xfer_stall = &uss820dci_xfer_stall, 2443 .set_stall = &uss820dci_set_stall, 2444 .clear_stall = &uss820dci_clear_stall, 2445 .roothub_exec = &uss820dci_roothub_exec, 2446 .xfer_poll = &uss820dci_do_poll, 2447 .set_hw_power_sleep = uss820dci_set_hw_power_sleep, 2448 }; 2449