1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31/*- 32 * Copyright (c) 2001 The NetBSD Foundation, Inc. 33 * All rights reserved. 34 * 35 * This code is derived from software contributed to The NetBSD Foundation 36 * by Ichiro FUKUHARA (ichiro@ichiro.org). 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 48 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 49 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 50 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 51 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 52 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 53 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 54 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 55 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 56 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 57 * POSSIBILITY OF SUCH DAMAGE. 58 */ 59 60#include <sys/stdint.h> 61#include <sys/stddef.h> 62#include <sys/param.h> 63#include <sys/queue.h> 64#include <sys/types.h> 65#include <sys/systm.h> 66#include <sys/kernel.h> 67#include <sys/bus.h> 68#include <sys/module.h> 69#include <sys/lock.h> 70#include <sys/mutex.h> 71#include <sys/condvar.h> 72#include <sys/sysctl.h> 73#include <sys/sx.h> 74#include <sys/unistd.h> 75#include <sys/callout.h> 76#include <sys/malloc.h> 77#include <sys/priv.h> 78 79#include <dev/usb/usb.h> 80#include <dev/usb/usbdi.h> 81#include <dev/usb/usbdi_util.h> 82#include "usbdevs.h" 83 84#define USB_DEBUG_VAR ubsa_debug 85#include <dev/usb/usb_debug.h> 86#include <dev/usb/usb_process.h> 87 88#include <dev/usb/serial/usb_serial.h> 89 90#ifdef USB_DEBUG 91static int ubsa_debug = 0; 92 93static SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW, 0, "USB ubsa"); 94SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RWTUN, 95 &ubsa_debug, 0, "ubsa debug level"); 96#endif 97 98#define UBSA_BSIZE 1024 /* bytes */ 99 100#define UBSA_CONFIG_INDEX 0 101#define UBSA_IFACE_INDEX 0 102 103#define UBSA_REG_BAUDRATE 0x00 104#define UBSA_REG_STOP_BITS 0x01 105#define UBSA_REG_DATA_BITS 0x02 106#define UBSA_REG_PARITY 0x03 107#define UBSA_REG_DTR 0x0A 108#define UBSA_REG_RTS 0x0B 109#define UBSA_REG_BREAK 0x0C 110#define UBSA_REG_FLOW_CTRL 0x10 111 112#define UBSA_PARITY_NONE 0x00 113#define UBSA_PARITY_EVEN 0x01 114#define UBSA_PARITY_ODD 0x02 115#define UBSA_PARITY_MARK 0x03 116#define UBSA_PARITY_SPACE 0x04 117 118#define UBSA_FLOW_NONE 0x0000 119#define UBSA_FLOW_OCTS 0x0001 120#define UBSA_FLOW_ODSR 0x0002 121#define UBSA_FLOW_IDSR 0x0004 122#define UBSA_FLOW_IDTR 0x0008 123#define UBSA_FLOW_IRTS 0x0010 124#define UBSA_FLOW_ORTS 0x0020 125#define UBSA_FLOW_UNKNOWN 0x0040 126#define UBSA_FLOW_OXON 0x0080 127#define UBSA_FLOW_IXON 0x0100 128 129/* line status register */ 130#define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */ 131#define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */ 132#define UBSA_LSR_BI 0x10 /* Break detected */ 133#define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */ 134#define UBSA_LSR_PE 0x04 /* Parity error */ 135#define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */ 136#define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */ 137#define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */ 138 139/* modem status register */ 140/* All deltas are from the last read of the MSR. */ 141#define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */ 142#define UBSA_MSR_RI 0x40 /* Current Ring Indicator */ 143#define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */ 144#define UBSA_MSR_CTS 0x10 /* Current Clear to Send */ 145#define UBSA_MSR_DDCD 0x08 /* DCD has changed state */ 146#define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */ 147#define UBSA_MSR_DDSR 0x02 /* DSR has changed state */ 148#define UBSA_MSR_DCTS 0x01 /* CTS has changed state */ 149 150enum { 151 UBSA_BULK_DT_WR, 152 UBSA_BULK_DT_RD, 153 UBSA_INTR_DT_RD, 154 UBSA_N_TRANSFER, 155}; 156 157struct ubsa_softc { 158 struct ucom_super_softc sc_super_ucom; 159 struct ucom_softc sc_ucom; 160 161 struct usb_xfer *sc_xfer[UBSA_N_TRANSFER]; 162 struct usb_device *sc_udev; 163 struct mtx sc_mtx; 164 165 uint8_t sc_iface_no; /* interface number */ 166 uint8_t sc_iface_index; /* interface index */ 167 uint8_t sc_lsr; /* local status register */ 168 uint8_t sc_msr; /* UBSA status register */ 169}; 170 171static device_probe_t ubsa_probe; 172static device_attach_t ubsa_attach; 173static device_detach_t ubsa_detach; 174static void ubsa_free_softc(struct ubsa_softc *); 175 176static usb_callback_t ubsa_write_callback; 177static usb_callback_t ubsa_read_callback; 178static usb_callback_t ubsa_intr_callback; 179 180static void ubsa_cfg_request(struct ubsa_softc *, uint8_t, uint16_t); 181static void ubsa_free(struct ucom_softc *); 182static void ubsa_cfg_set_dtr(struct ucom_softc *, uint8_t); 183static void ubsa_cfg_set_rts(struct ucom_softc *, uint8_t); 184static void ubsa_cfg_set_break(struct ucom_softc *, uint8_t); 185static int ubsa_pre_param(struct ucom_softc *, struct termios *); 186static void ubsa_cfg_param(struct ucom_softc *, struct termios *); 187static void ubsa_start_read(struct ucom_softc *); 188static void ubsa_stop_read(struct ucom_softc *); 189static void ubsa_start_write(struct ucom_softc *); 190static void ubsa_stop_write(struct ucom_softc *); 191static void ubsa_cfg_get_status(struct ucom_softc *, uint8_t *, 192 uint8_t *); 193static void ubsa_poll(struct ucom_softc *ucom); 194 195static const struct usb_config ubsa_config[UBSA_N_TRANSFER] = { 196 197 [UBSA_BULK_DT_WR] = { 198 .type = UE_BULK, 199 .endpoint = UE_ADDR_ANY, 200 .direction = UE_DIR_OUT, 201 .bufsize = UBSA_BSIZE, /* bytes */ 202 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 203 .callback = &ubsa_write_callback, 204 }, 205 206 [UBSA_BULK_DT_RD] = { 207 .type = UE_BULK, 208 .endpoint = UE_ADDR_ANY, 209 .direction = UE_DIR_IN, 210 .bufsize = UBSA_BSIZE, /* bytes */ 211 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 212 .callback = &ubsa_read_callback, 213 }, 214 215 [UBSA_INTR_DT_RD] = { 216 .type = UE_INTERRUPT, 217 .endpoint = UE_ADDR_ANY, 218 .direction = UE_DIR_IN, 219 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 220 .bufsize = 0, /* use wMaxPacketSize */ 221 .callback = &ubsa_intr_callback, 222 }, 223}; 224 225static const struct ucom_callback ubsa_callback = { 226 .ucom_cfg_get_status = &ubsa_cfg_get_status, 227 .ucom_cfg_set_dtr = &ubsa_cfg_set_dtr, 228 .ucom_cfg_set_rts = &ubsa_cfg_set_rts, 229 .ucom_cfg_set_break = &ubsa_cfg_set_break, 230 .ucom_cfg_param = &ubsa_cfg_param, 231 .ucom_pre_param = &ubsa_pre_param, 232 .ucom_start_read = &ubsa_start_read, 233 .ucom_stop_read = &ubsa_stop_read, 234 .ucom_start_write = &ubsa_start_write, 235 .ucom_stop_write = &ubsa_stop_write, 236 .ucom_poll = &ubsa_poll, 237 .ucom_free = &ubsa_free, 238}; 239 240static const STRUCT_USB_HOST_ID ubsa_devs[] = { 241 /* AnyData ADU-500A */ 242 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_500A, 0)}, 243 /* AnyData ADU-E100A/H */ 244 {USB_VPI(USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100X, 0)}, 245 /* Axesstel MV100H */ 246 {USB_VPI(USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM, 0)}, 247 /* BELKIN F5U103 */ 248 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103, 0)}, 249 /* BELKIN F5U120 */ 250 {USB_VPI(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120, 0)}, 251 /* GoHubs GO-COM232 */ 252 {USB_VPI(USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM, 0)}, 253 /* GoHubs GO-COM232 */ 254 {USB_VPI(USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232, 0)}, 255 /* Peracom */ 256 {USB_VPI(USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1, 0)}, 257}; 258 259static device_method_t ubsa_methods[] = { 260 DEVMETHOD(device_probe, ubsa_probe), 261 DEVMETHOD(device_attach, ubsa_attach), 262 DEVMETHOD(device_detach, ubsa_detach), 263 DEVMETHOD_END 264}; 265 266static devclass_t ubsa_devclass; 267 268static driver_t ubsa_driver = { 269 .name = "ubsa", 270 .methods = ubsa_methods, 271 .size = sizeof(struct ubsa_softc), 272}; 273 274DRIVER_MODULE(ubsa, uhub, ubsa_driver, ubsa_devclass, NULL, 0); 275MODULE_DEPEND(ubsa, ucom, 1, 1, 1); 276MODULE_DEPEND(ubsa, usb, 1, 1, 1); 277MODULE_VERSION(ubsa, 1); 278USB_PNP_HOST_INFO(ubsa_devs); 279 280static int 281ubsa_probe(device_t dev) 282{ 283 struct usb_attach_arg *uaa = device_get_ivars(dev); 284 285 if (uaa->usb_mode != USB_MODE_HOST) { 286 return (ENXIO); 287 } 288 if (uaa->info.bConfigIndex != UBSA_CONFIG_INDEX) { 289 return (ENXIO); 290 } 291 if (uaa->info.bIfaceIndex != UBSA_IFACE_INDEX) { 292 return (ENXIO); 293 } 294 return (usbd_lookup_id_by_uaa(ubsa_devs, sizeof(ubsa_devs), uaa)); 295} 296 297static int 298ubsa_attach(device_t dev) 299{ 300 struct usb_attach_arg *uaa = device_get_ivars(dev); 301 struct ubsa_softc *sc = device_get_softc(dev); 302 int error; 303 304 DPRINTF("sc=%p\n", sc); 305 306 device_set_usb_desc(dev); 307 mtx_init(&sc->sc_mtx, "ubsa", NULL, MTX_DEF); 308 ucom_ref(&sc->sc_super_ucom); 309 310 sc->sc_udev = uaa->device; 311 sc->sc_iface_no = uaa->info.bIfaceNum; 312 sc->sc_iface_index = UBSA_IFACE_INDEX; 313 314 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index, 315 sc->sc_xfer, ubsa_config, UBSA_N_TRANSFER, sc, &sc->sc_mtx); 316 317 if (error) { 318 DPRINTF("could not allocate all pipes\n"); 319 goto detach; 320 } 321 /* clear stall at first run */ 322 mtx_lock(&sc->sc_mtx); 323 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_WR]); 324 usbd_xfer_set_stall(sc->sc_xfer[UBSA_BULK_DT_RD]); 325 mtx_unlock(&sc->sc_mtx); 326 327 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 328 &ubsa_callback, &sc->sc_mtx); 329 if (error) { 330 DPRINTF("ucom_attach failed\n"); 331 goto detach; 332 } 333 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 334 335 return (0); 336 337detach: 338 ubsa_detach(dev); 339 return (ENXIO); 340} 341 342static int 343ubsa_detach(device_t dev) 344{ 345 struct ubsa_softc *sc = device_get_softc(dev); 346 347 DPRINTF("sc=%p\n", sc); 348 349 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 350 usbd_transfer_unsetup(sc->sc_xfer, UBSA_N_TRANSFER); 351 352 device_claim_softc(dev); 353 354 ubsa_free_softc(sc); 355 356 return (0); 357} 358 359UCOM_UNLOAD_DRAIN(ubsa); 360 361static void 362ubsa_free_softc(struct ubsa_softc *sc) 363{ 364 if (ucom_unref(&sc->sc_super_ucom)) { 365 mtx_destroy(&sc->sc_mtx); 366 device_free_softc(sc); 367 } 368} 369 370static void 371ubsa_free(struct ucom_softc *ucom) 372{ 373 ubsa_free_softc(ucom->sc_parent); 374} 375 376static void 377ubsa_cfg_request(struct ubsa_softc *sc, uint8_t index, uint16_t value) 378{ 379 struct usb_device_request req; 380 usb_error_t err; 381 382 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 383 req.bRequest = index; 384 USETW(req.wValue, value); 385 req.wIndex[0] = sc->sc_iface_no; 386 req.wIndex[1] = 0; 387 USETW(req.wLength, 0); 388 389 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 390 &req, NULL, 0, 1000); 391 if (err) { 392 DPRINTFN(0, "device request failed, err=%s " 393 "(ignored)\n", usbd_errstr(err)); 394 } 395} 396 397static void 398ubsa_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 399{ 400 struct ubsa_softc *sc = ucom->sc_parent; 401 402 DPRINTF("onoff = %d\n", onoff); 403 404 ubsa_cfg_request(sc, UBSA_REG_DTR, onoff ? 1 : 0); 405} 406 407static void 408ubsa_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff) 409{ 410 struct ubsa_softc *sc = ucom->sc_parent; 411 412 DPRINTF("onoff = %d\n", onoff); 413 414 ubsa_cfg_request(sc, UBSA_REG_RTS, onoff ? 1 : 0); 415} 416 417static void 418ubsa_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff) 419{ 420 struct ubsa_softc *sc = ucom->sc_parent; 421 422 DPRINTF("onoff = %d\n", onoff); 423 424 ubsa_cfg_request(sc, UBSA_REG_BREAK, onoff ? 1 : 0); 425} 426 427static int 428ubsa_pre_param(struct ucom_softc *ucom, struct termios *t) 429{ 430 431 DPRINTF("sc = %p\n", ucom->sc_parent); 432 433 switch (t->c_ospeed) { 434 case B0: 435 case B300: 436 case B600: 437 case B1200: 438 case B2400: 439 case B4800: 440 case B9600: 441 case B19200: 442 case B38400: 443 case B57600: 444 case B115200: 445 case B230400: 446 break; 447 default: 448 return (EINVAL); 449 } 450 return (0); 451} 452 453static void 454ubsa_cfg_param(struct ucom_softc *ucom, struct termios *t) 455{ 456 struct ubsa_softc *sc = ucom->sc_parent; 457 uint16_t value = 0; 458 459 DPRINTF("sc = %p\n", sc); 460 461 switch (t->c_ospeed) { 462 case B0: 463 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, 0); 464 ubsa_cfg_set_dtr(&sc->sc_ucom, 0); 465 ubsa_cfg_set_rts(&sc->sc_ucom, 0); 466 break; 467 case B300: 468 case B600: 469 case B1200: 470 case B2400: 471 case B4800: 472 case B9600: 473 case B19200: 474 case B38400: 475 case B57600: 476 case B115200: 477 case B230400: 478 value = B230400 / t->c_ospeed; 479 ubsa_cfg_request(sc, UBSA_REG_BAUDRATE, value); 480 break; 481 default: 482 return; 483 } 484 485 if (t->c_cflag & PARENB) 486 value = (t->c_cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; 487 else 488 value = UBSA_PARITY_NONE; 489 490 ubsa_cfg_request(sc, UBSA_REG_PARITY, value); 491 492 switch (t->c_cflag & CSIZE) { 493 case CS5: 494 value = 0; 495 break; 496 case CS6: 497 value = 1; 498 break; 499 case CS7: 500 value = 2; 501 break; 502 default: 503 case CS8: 504 value = 3; 505 break; 506 } 507 508 ubsa_cfg_request(sc, UBSA_REG_DATA_BITS, value); 509 510 value = (t->c_cflag & CSTOPB) ? 1 : 0; 511 512 ubsa_cfg_request(sc, UBSA_REG_STOP_BITS, value); 513 514 value = 0; 515 if (t->c_cflag & CRTSCTS) 516 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; 517 518 if (t->c_iflag & (IXON | IXOFF)) 519 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; 520 521 ubsa_cfg_request(sc, UBSA_REG_FLOW_CTRL, value); 522} 523 524static void 525ubsa_start_read(struct ucom_softc *ucom) 526{ 527 struct ubsa_softc *sc = ucom->sc_parent; 528 529 /* start interrupt endpoint */ 530 usbd_transfer_start(sc->sc_xfer[UBSA_INTR_DT_RD]); 531 532 /* start read endpoint */ 533 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_RD]); 534} 535 536static void 537ubsa_stop_read(struct ucom_softc *ucom) 538{ 539 struct ubsa_softc *sc = ucom->sc_parent; 540 541 /* stop interrupt endpoint */ 542 usbd_transfer_stop(sc->sc_xfer[UBSA_INTR_DT_RD]); 543 544 /* stop read endpoint */ 545 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_RD]); 546} 547 548static void 549ubsa_start_write(struct ucom_softc *ucom) 550{ 551 struct ubsa_softc *sc = ucom->sc_parent; 552 553 usbd_transfer_start(sc->sc_xfer[UBSA_BULK_DT_WR]); 554} 555 556static void 557ubsa_stop_write(struct ucom_softc *ucom) 558{ 559 struct ubsa_softc *sc = ucom->sc_parent; 560 561 usbd_transfer_stop(sc->sc_xfer[UBSA_BULK_DT_WR]); 562} 563 564static void 565ubsa_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 566{ 567 struct ubsa_softc *sc = ucom->sc_parent; 568 569 DPRINTF("\n"); 570 571 *lsr = sc->sc_lsr; 572 *msr = sc->sc_msr; 573} 574 575static void 576ubsa_write_callback(struct usb_xfer *xfer, usb_error_t error) 577{ 578 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 579 struct usb_page_cache *pc; 580 uint32_t actlen; 581 582 switch (USB_GET_STATE(xfer)) { 583 case USB_ST_SETUP: 584 case USB_ST_TRANSFERRED: 585tr_setup: 586 pc = usbd_xfer_get_frame(xfer, 0); 587 if (ucom_get_data(&sc->sc_ucom, pc, 0, 588 UBSA_BSIZE, &actlen)) { 589 590 usbd_xfer_set_frame_len(xfer, 0, actlen); 591 usbd_transfer_submit(xfer); 592 } 593 return; 594 595 default: /* Error */ 596 if (error != USB_ERR_CANCELLED) { 597 /* try to clear stall first */ 598 usbd_xfer_set_stall(xfer); 599 goto tr_setup; 600 } 601 return; 602 603 } 604} 605 606static void 607ubsa_read_callback(struct usb_xfer *xfer, usb_error_t error) 608{ 609 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 610 struct usb_page_cache *pc; 611 int actlen; 612 613 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 614 615 switch (USB_GET_STATE(xfer)) { 616 case USB_ST_TRANSFERRED: 617 pc = usbd_xfer_get_frame(xfer, 0); 618 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 619 620 case USB_ST_SETUP: 621tr_setup: 622 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 623 usbd_transfer_submit(xfer); 624 return; 625 626 default: /* Error */ 627 if (error != USB_ERR_CANCELLED) { 628 /* try to clear stall first */ 629 usbd_xfer_set_stall(xfer); 630 goto tr_setup; 631 } 632 return; 633 634 } 635} 636 637static void 638ubsa_intr_callback(struct usb_xfer *xfer, usb_error_t error) 639{ 640 struct ubsa_softc *sc = usbd_xfer_softc(xfer); 641 struct usb_page_cache *pc; 642 uint8_t buf[4]; 643 int actlen; 644 645 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 646 647 switch (USB_GET_STATE(xfer)) { 648 case USB_ST_TRANSFERRED: 649 650 if (actlen >= (int)sizeof(buf)) { 651 pc = usbd_xfer_get_frame(xfer, 0); 652 usbd_copy_out(pc, 0, buf, sizeof(buf)); 653 654 /* 655 * MSR bits need translation from ns16550 to SER_* values. 656 * LSR bits are ns16550 in hardware and ucom. 657 */ 658 sc->sc_msr = 0; 659 if (buf[3] & UBSA_MSR_CTS) 660 sc->sc_msr |= SER_CTS; 661 if (buf[3] & UBSA_MSR_DCD) 662 sc->sc_msr |= SER_DCD; 663 if (buf[3] & UBSA_MSR_RI) 664 sc->sc_msr |= SER_RI; 665 if (buf[3] & UBSA_MSR_DSR) 666 sc->sc_msr |= SER_DSR; 667 sc->sc_lsr = buf[2]; 668 669 DPRINTF("lsr = 0x%02x, msr = 0x%02x\n", 670 sc->sc_lsr, sc->sc_msr); 671 672 ucom_status_change(&sc->sc_ucom); 673 } else { 674 DPRINTF("ignoring short packet, %d bytes\n", actlen); 675 } 676 /* FALLTHROUGH */ 677 case USB_ST_SETUP: 678tr_setup: 679 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 680 usbd_transfer_submit(xfer); 681 return; 682 683 default: /* Error */ 684 if (error != USB_ERR_CANCELLED) { 685 /* try to clear stall first */ 686 usbd_xfer_set_stall(xfer); 687 goto tr_setup; 688 } 689 return; 690 691 } 692} 693 694static void 695ubsa_poll(struct ucom_softc *ucom) 696{ 697 struct ubsa_softc *sc = ucom->sc_parent; 698 usbd_transfer_poll(sc->sc_xfer, UBSA_N_TRANSFER); 699 700} 701