1/* $NetBSD: uplcom.c,v 1.21 2001/11/13 06:24:56 lukem Exp $ */ 2 3#include <sys/cdefs.h> 4/*- 5 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32/*- 33 * Copyright (c) 2001 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Ichiro FUKUHARA (ichiro@ichiro.org). 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 50 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 51 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58 * POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61/* 62 * This driver supports several USB-to-RS232 serial adapters driven by 63 * Prolific PL-2303, PL-2303X and probably PL-2303HX USB-to-RS232 64 * bridge chip. The adapters are sold under many different brand 65 * names. 66 * 67 * Datasheets are available at Prolific www site at 68 * http://www.prolific.com.tw. The datasheets don't contain full 69 * programming information for the chip. 70 * 71 * PL-2303HX is probably programmed the same as PL-2303X. 72 * 73 * There are several differences between PL-2303 and PL-2303(H)X. 74 * PL-2303(H)X can do higher bitrate in bulk mode, has _probably_ 75 * different command for controlling CRTSCTS and needs special 76 * sequence of commands for initialization which aren't also 77 * documented in the datasheet. 78 */ 79 80#include <sys/stdint.h> 81#include <sys/stddef.h> 82#include <sys/param.h> 83#include <sys/queue.h> 84#include <sys/types.h> 85#include <sys/systm.h> 86#include <sys/kernel.h> 87#include <sys/bus.h> 88#include <sys/module.h> 89#include <sys/lock.h> 90#include <sys/mutex.h> 91#include <sys/condvar.h> 92#include <sys/sysctl.h> 93#include <sys/sx.h> 94#include <sys/unistd.h> 95#include <sys/callout.h> 96#include <sys/malloc.h> 97#include <sys/priv.h> 98 99#include <dev/usb/usb.h> 100#include <dev/usb/usbdi.h> 101#include <dev/usb/usbdi_util.h> 102#include <dev/usb/usb_cdc.h> 103#include "usbdevs.h" 104 105#define USB_DEBUG_VAR uplcom_debug 106#include <dev/usb/usb_debug.h> 107#include <dev/usb/usb_process.h> 108 109#include <dev/usb/serial/usb_serial.h> 110 111#ifdef USB_DEBUG 112static int uplcom_debug = 0; 113 114static SYSCTL_NODE(_hw_usb, OID_AUTO, uplcom, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 115 "USB uplcom"); 116SYSCTL_INT(_hw_usb_uplcom, OID_AUTO, debug, CTLFLAG_RWTUN, 117 &uplcom_debug, 0, "Debug level"); 118#endif 119 120#define UPLCOM_MODVER 1 /* module version */ 121 122#define UPLCOM_CONFIG_INDEX 0 123#define UPLCOM_IFACE_INDEX 0 124#define UPLCOM_SECOND_IFACE_INDEX 1 125 126#ifndef UPLCOM_INTR_INTERVAL 127#define UPLCOM_INTR_INTERVAL 0 /* default */ 128#endif 129 130#define UPLCOM_BULK_BUF_SIZE 1024 /* bytes */ 131 132#define UPLCOM_SET_REQUEST 0x01 133#define UPLCOM_SET_REQUEST_PL2303HXN 0x80 134#define UPLCOM_SET_CRTSCTS 0x41 135#define UPLCOM_SET_CRTSCTS_PL2303X 0x61 136#define UPLCOM_SET_CRTSCTS_PL2303HXN 0xFA 137#define UPLCOM_CLEAR_CRTSCTS_PL2303HXN 0xFF 138#define UPLCOM_CRTSCTS_REG_PL2303HXN 0x0A 139#define UPLCOM_STATUS_REG_PL2303HX 0x8080 140#define RSAQ_STATUS_CTS 0x80 141#define RSAQ_STATUS_OVERRUN_ERROR 0x40 142#define RSAQ_STATUS_PARITY_ERROR 0x20 143#define RSAQ_STATUS_FRAME_ERROR 0x10 144#define RSAQ_STATUS_RING 0x08 145#define RSAQ_STATUS_BREAK_ERROR 0x04 146#define RSAQ_STATUS_DSR 0x02 147#define RSAQ_STATUS_DCD 0x01 148 149#define TYPE_PL2303 0 150#define TYPE_PL2303HX 1 151#define TYPE_PL2303HXD 2 152#define TYPE_PL2303HXN 3 153 154#define UPLCOM_STATE_INDEX 8 155 156enum { 157 UPLCOM_BULK_DT_WR, 158 UPLCOM_BULK_DT_RD, 159 UPLCOM_INTR_DT_RD, 160 UPLCOM_N_TRANSFER, 161}; 162 163struct uplcom_softc { 164 struct ucom_super_softc sc_super_ucom; 165 struct ucom_softc sc_ucom; 166 167 struct usb_xfer *sc_xfer[UPLCOM_N_TRANSFER]; 168 struct usb_device *sc_udev; 169 struct mtx sc_mtx; 170 171 uint16_t sc_line; 172 173 uint8_t sc_lsr; /* local status register */ 174 uint8_t sc_msr; /* uplcom status register */ 175 uint8_t sc_chiptype; /* type of chip */ 176 uint8_t sc_ctrl_iface_no; 177 uint8_t sc_data_iface_no; 178 uint8_t sc_iface_index[2]; 179}; 180 181/* prototypes */ 182 183static usb_error_t uplcom_reset(struct uplcom_softc *, struct usb_device *); 184static usb_error_t uplcom_pl2303_do(struct usb_device *, uint8_t, uint8_t, 185 uint16_t, uint16_t, uint16_t); 186static int uplcom_pl2303_init(struct usb_device *, uint8_t); 187static void uplcom_free(struct ucom_softc *); 188static void uplcom_cfg_set_dtr(struct ucom_softc *, uint8_t); 189static void uplcom_cfg_set_rts(struct ucom_softc *, uint8_t); 190static void uplcom_cfg_set_break(struct ucom_softc *, uint8_t); 191static int uplcom_pre_param(struct ucom_softc *, struct termios *); 192static void uplcom_cfg_param(struct ucom_softc *, struct termios *); 193static void uplcom_start_read(struct ucom_softc *); 194static void uplcom_stop_read(struct ucom_softc *); 195static void uplcom_start_write(struct ucom_softc *); 196static void uplcom_stop_write(struct ucom_softc *); 197static void uplcom_cfg_get_status(struct ucom_softc *, uint8_t *, 198 uint8_t *); 199static void uplcom_poll(struct ucom_softc *ucom); 200 201static device_probe_t uplcom_probe; 202static device_attach_t uplcom_attach; 203static device_detach_t uplcom_detach; 204static void uplcom_free_softc(struct uplcom_softc *); 205 206static usb_callback_t uplcom_intr_callback; 207static usb_callback_t uplcom_write_callback; 208static usb_callback_t uplcom_read_callback; 209 210static const struct usb_config uplcom_config_data[UPLCOM_N_TRANSFER] = { 211 [UPLCOM_BULK_DT_WR] = { 212 .type = UE_BULK, 213 .endpoint = UE_ADDR_ANY, 214 .direction = UE_DIR_OUT, 215 .bufsize = UPLCOM_BULK_BUF_SIZE, 216 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 217 .callback = &uplcom_write_callback, 218 .if_index = 0, 219 }, 220 221 [UPLCOM_BULK_DT_RD] = { 222 .type = UE_BULK, 223 .endpoint = UE_ADDR_ANY, 224 .direction = UE_DIR_IN, 225 .bufsize = UPLCOM_BULK_BUF_SIZE, 226 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 227 .callback = &uplcom_read_callback, 228 .if_index = 0, 229 }, 230 231 [UPLCOM_INTR_DT_RD] = { 232 .type = UE_INTERRUPT, 233 .endpoint = UE_ADDR_ANY, 234 .direction = UE_DIR_IN, 235 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 236 .bufsize = 0, /* use wMaxPacketSize */ 237 .callback = &uplcom_intr_callback, 238 .if_index = 1, 239 }, 240}; 241 242static struct ucom_callback uplcom_callback = { 243 .ucom_cfg_get_status = &uplcom_cfg_get_status, 244 .ucom_cfg_set_dtr = &uplcom_cfg_set_dtr, 245 .ucom_cfg_set_rts = &uplcom_cfg_set_rts, 246 .ucom_cfg_set_break = &uplcom_cfg_set_break, 247 .ucom_cfg_param = &uplcom_cfg_param, 248 .ucom_pre_param = &uplcom_pre_param, 249 .ucom_start_read = &uplcom_start_read, 250 .ucom_stop_read = &uplcom_stop_read, 251 .ucom_start_write = &uplcom_start_write, 252 .ucom_stop_write = &uplcom_stop_write, 253 .ucom_poll = &uplcom_poll, 254 .ucom_free = &uplcom_free, 255}; 256 257#define UPLCOM_DEV(v,p) \ 258 { USB_VENDOR(USB_VENDOR_##v), USB_PRODUCT(USB_PRODUCT_##v##_##p) } 259 260static const STRUCT_USB_HOST_ID uplcom_devs[] = { 261 UPLCOM_DEV(ACERP, S81), /* BenQ S81 phone */ 262 UPLCOM_DEV(ADLINK, ND6530), /* ADLINK ND-6530 USB-Serial */ 263 UPLCOM_DEV(ALCATEL, OT535), /* Alcatel One Touch 535/735 */ 264 UPLCOM_DEV(ALCOR, AU9720), /* Alcor AU9720 USB 2.0-RS232 */ 265 UPLCOM_DEV(ANCHOR, SERIAL), /* Anchor Serial adapter */ 266 UPLCOM_DEV(ATEN, UC232A), /* PLANEX USB-RS232 URS-03 */ 267 UPLCOM_DEV(ATEN, UC232B), /* Prolific USB-RS232 Controller D */ 268 UPLCOM_DEV(BELKIN, F5U257), /* Belkin F5U257 USB to Serial */ 269 UPLCOM_DEV(COREGA, CGUSBRS232R), /* Corega CG-USBRS232R */ 270 UPLCOM_DEV(EPSON, CRESSI_EDY), /* Cressi Edy diving computer */ 271 UPLCOM_DEV(EPSON, N2ITION3), /* Zeagle N2iTion3 diving computer */ 272 UPLCOM_DEV(ELECOM, UCSGT), /* ELECOM UC-SGT Serial Adapter */ 273 UPLCOM_DEV(ELECOM, UCSGT0), /* ELECOM UC-SGT Serial Adapter */ 274 UPLCOM_DEV(HAL, IMR001), /* HAL Corporation Crossam2+USB */ 275 UPLCOM_DEV(HP, LD220), /* HP LD220 POS Display */ 276 UPLCOM_DEV(IODATA, USBRSAQ), /* I/O DATA USB-RSAQ */ 277 UPLCOM_DEV(IODATA, USBRSAQ5), /* I/O DATA USB-RSAQ5 */ 278 UPLCOM_DEV(ITEGNO, WM1080A), /* iTegno WM1080A GSM/GFPRS modem */ 279 UPLCOM_DEV(ITEGNO, WM2080A), /* iTegno WM2080A CDMA modem */ 280 UPLCOM_DEV(LEADTEK, 9531), /* Leadtek 9531 GPS */ 281 UPLCOM_DEV(MICROSOFT, 700WX), /* Microsoft Palm 700WX */ 282 UPLCOM_DEV(MOBILEACTION, MA620), /* Mobile Action MA-620 Infrared Adapter */ 283 UPLCOM_DEV(NETINDEX, WS002IN), /* Willcom W-S002IN */ 284 UPLCOM_DEV(NOKIA2, CA42), /* Nokia CA-42 cable */ 285 UPLCOM_DEV(OTI, DKU5), /* OTI DKU-5 cable */ 286 UPLCOM_DEV(PANASONIC, TYTP50P6S), /* Panasonic TY-TP50P6-S flat screen */ 287 UPLCOM_DEV(PLX, CA42), /* PLX CA-42 clone cable */ 288 UPLCOM_DEV(PROLIFIC, ALLTRONIX_GPRS), /* Alltronix ACM003U00 modem */ 289 UPLCOM_DEV(PROLIFIC, ALDIGA_AL11U), /* AlDiga AL-11U modem */ 290 UPLCOM_DEV(PROLIFIC, DCU11), /* DCU-11 Phone Cable */ 291 UPLCOM_DEV(PROLIFIC, HCR331), /* HCR331 Card Reader */ 292 UPLCOM_DEV(PROLIFIC, MICROMAX_610U), /* Micromax 610U modem */ 293 UPLCOM_DEV(PROLIFIC, MOTOROLA), /* Motorola cable */ 294 UPLCOM_DEV(PROLIFIC, PHAROS), /* Prolific Pharos */ 295 UPLCOM_DEV(PROLIFIC, PL2303), /* Generic adapter */ 296 UPLCOM_DEV(PROLIFIC, PL2303GC), /* Generic adapter (PL2303HXN, type GC) */ 297 UPLCOM_DEV(PROLIFIC, PL2303GB), /* Generic adapter (PL2303HXN, type GB) */ 298 UPLCOM_DEV(PROLIFIC, PL2303GT), /* Generic adapter (PL2303HXN, type GT) */ 299 UPLCOM_DEV(PROLIFIC, PL2303GL), /* Generic adapter (PL2303HXN, type GL) */ 300 UPLCOM_DEV(PROLIFIC, PL2303GE), /* Generic adapter (PL2303HXN, type GE) */ 301 UPLCOM_DEV(PROLIFIC, PL2303GS), /* Generic adapter (PL2303HXN, type GS) */ 302 UPLCOM_DEV(PROLIFIC, RSAQ2), /* I/O DATA USB-RSAQ2 */ 303 UPLCOM_DEV(PROLIFIC, RSAQ3), /* I/O DATA USB-RSAQ3 */ 304 UPLCOM_DEV(PROLIFIC, UIC_MSR206), /* UIC MSR206 Card Reader */ 305 UPLCOM_DEV(PROLIFIC2, PL2303), /* Prolific adapter */ 306 UPLCOM_DEV(RADIOSHACK, USBCABLE), /* Radio Shack USB Adapter */ 307 UPLCOM_DEV(RATOC, REXUSB60), /* RATOC REX-USB60 */ 308 UPLCOM_DEV(SAGEM, USBSERIAL), /* Sagem USB-Serial Controller */ 309 UPLCOM_DEV(SAMSUNG, I330), /* Samsung I330 phone cradle */ 310 UPLCOM_DEV(SANWA, KB_USB2), /* Sanwa KB-USB2 Multimeter cable */ 311 UPLCOM_DEV(SIEMENS3, EF81), /* Siemens EF81 */ 312 UPLCOM_DEV(SIEMENS3, SX1), /* Siemens SX1 */ 313 UPLCOM_DEV(SIEMENS3, X65), /* Siemens X65 */ 314 UPLCOM_DEV(SIEMENS3, X75), /* Siemens X75 */ 315 UPLCOM_DEV(SITECOM, SERIAL), /* Sitecom USB to Serial */ 316 UPLCOM_DEV(SMART, PL2303), /* SMART Technologies USB to Serial */ 317 UPLCOM_DEV(SONY, QN3), /* Sony QN3 phone cable */ 318 UPLCOM_DEV(SONYERICSSON, DATAPILOT), /* Sony Ericsson Datapilot */ 319 UPLCOM_DEV(SONYERICSSON, DCU10), /* Sony Ericsson DCU-10 Cable */ 320 UPLCOM_DEV(SOURCENEXT, KEIKAI8), /* SOURCENEXT KeikaiDenwa 8 */ 321 UPLCOM_DEV(SOURCENEXT, KEIKAI8_CHG), /* SOURCENEXT KeikaiDenwa 8 with charger */ 322 UPLCOM_DEV(SPEEDDRAGON, MS3303H), /* Speed Dragon USB-Serial */ 323 UPLCOM_DEV(SYNTECH, CPT8001C), /* Syntech CPT-8001C Barcode scanner */ 324 UPLCOM_DEV(TDK, UHA6400), /* TDK USB-PHS Adapter UHA6400 */ 325 UPLCOM_DEV(TDK, UPA9664), /* TDK USB-PHS Adapter UPA9664 */ 326 UPLCOM_DEV(TRIPPLITE, U209), /* Tripp-Lite U209-000-R USB to Serial */ 327 UPLCOM_DEV(YCCABLE, PL2303), /* YC Cable USB-Serial */ 328}; 329#undef UPLCOM_DEV 330 331static device_method_t uplcom_methods[] = { 332 DEVMETHOD(device_probe, uplcom_probe), 333 DEVMETHOD(device_attach, uplcom_attach), 334 DEVMETHOD(device_detach, uplcom_detach), 335 DEVMETHOD_END 336}; 337 338static driver_t uplcom_driver = { 339 .name = "uplcom", 340 .methods = uplcom_methods, 341 .size = sizeof(struct uplcom_softc), 342}; 343 344DRIVER_MODULE(uplcom, uhub, uplcom_driver, NULL, NULL); 345MODULE_DEPEND(uplcom, ucom, 1, 1, 1); 346MODULE_DEPEND(uplcom, usb, 1, 1, 1); 347MODULE_VERSION(uplcom, UPLCOM_MODVER); 348USB_PNP_HOST_INFO(uplcom_devs); 349 350static int 351uplcom_probe(device_t dev) 352{ 353 struct usb_attach_arg *uaa = device_get_ivars(dev); 354 355 DPRINTFN(11, "\n"); 356 357 if (uaa->usb_mode != USB_MODE_HOST) { 358 return (ENXIO); 359 } 360 if (uaa->info.bConfigIndex != UPLCOM_CONFIG_INDEX) { 361 return (ENXIO); 362 } 363 if (uaa->info.bIfaceIndex != UPLCOM_IFACE_INDEX) { 364 return (ENXIO); 365 } 366 return (usbd_lookup_id_by_uaa(uplcom_devs, sizeof(uplcom_devs), uaa)); 367} 368 369static int 370uplcom_attach(device_t dev) 371{ 372 struct usb_attach_arg *uaa = device_get_ivars(dev); 373 struct uplcom_softc *sc = device_get_softc(dev); 374 struct usb_interface *iface; 375 struct usb_interface_descriptor *id; 376 struct usb_device_descriptor *dd; 377 int error; 378 379 struct usb_device_request req; 380 usb_error_t err; 381 uint8_t buf[4]; 382 383 DPRINTFN(11, "\n"); 384 385 device_set_usb_desc(dev); 386 mtx_init(&sc->sc_mtx, "uplcom", NULL, MTX_DEF); 387 ucom_ref(&sc->sc_super_ucom); 388 389 DPRINTF("sc = %p\n", sc); 390 391 sc->sc_udev = uaa->device; 392 393 dd = usbd_get_device_descriptor(sc->sc_udev); 394 395 switch (UGETW(dd->bcdDevice)) { 396 case 0x0300: 397 sc->sc_chiptype = TYPE_PL2303HX; 398 /* or TA, that is HX with external crystal */ 399 break; 400 case 0x0400: 401 sc->sc_chiptype = TYPE_PL2303HXD; 402 /* or EA, that is HXD with ESD protection */ 403 /* or RA, that has internal voltage level converter that works only up to 1Mbaud (!) */ 404 break; 405 case 0x0500: 406 sc->sc_chiptype = TYPE_PL2303HXD; 407 /* in fact it's TB, that is HXD with external crystal */ 408 break; 409 default: 410 /* NOTE: I have no info about the bcdDevice for the base PL2303 (up to 1.2Mbaud, 411 only fixed rates) and for PL2303SA (8-pin chip, up to 115200 baud */ 412 /* Determine the chip type. This algorithm is taken from Linux. */ 413 if (dd->bDeviceClass == 0x02) 414 sc->sc_chiptype = TYPE_PL2303; 415 else if (dd->bMaxPacketSize == 0x40) 416 sc->sc_chiptype = TYPE_PL2303HX; 417 else 418 sc->sc_chiptype = TYPE_PL2303; 419 break; 420 } 421 422 /* 423 * The new chip revision PL2303HXN is only compatible with the new 424 * UPLCOM_SET_REQUEST_PL2303HXN command. Issuing the old command 425 * UPLCOM_SET_REQUEST to the new chip raises an error. Thus, PL2303HX 426 * and PL2303HXN can be distinguished by issuing an old-style request 427 * (on a status register) to the new chip and checking the error. 428 */ 429 if (sc->sc_chiptype == TYPE_PL2303HX) { 430 req.bmRequestType = UT_READ_VENDOR_DEVICE; 431 req.bRequest = UPLCOM_SET_REQUEST; 432 USETW(req.wValue, UPLCOM_STATUS_REG_PL2303HX); 433 req.wIndex[0] = sc->sc_data_iface_no; 434 req.wIndex[1] = 0; 435 USETW(req.wLength, 1); 436 err = usbd_do_request(sc->sc_udev, NULL, &req, buf); 437 if (err) 438 sc->sc_chiptype = TYPE_PL2303HXN; 439 } 440 441 switch (sc->sc_chiptype) { 442 case TYPE_PL2303: 443 DPRINTF("chiptype: 2303\n"); 444 break; 445 case TYPE_PL2303HX: 446 DPRINTF("chiptype: 2303HX/TA\n"); 447 break; 448 case TYPE_PL2303HXN: 449 DPRINTF("chiptype: 2303HXN\n"); 450 break; 451 case TYPE_PL2303HXD: 452 DPRINTF("chiptype: 2303HXD/TB/RA/EA\n"); 453 break; 454 default: 455 DPRINTF("chiptype: unknown %d\n", sc->sc_chiptype); 456 break; 457 } 458 459 /* 460 * USB-RSAQ1 has two interface 461 * 462 * USB-RSAQ1 | USB-RSAQ2 463 * -----------------+----------------- 464 * Interface 0 |Interface 0 465 * Interrupt(0x81) | Interrupt(0x81) 466 * -----------------+ BulkIN(0x02) 467 * Interface 1 | BulkOUT(0x83) 468 * BulkIN(0x02) | 469 * BulkOUT(0x83) | 470 */ 471 472 sc->sc_ctrl_iface_no = uaa->info.bIfaceNum; 473 sc->sc_iface_index[1] = UPLCOM_IFACE_INDEX; 474 475 iface = usbd_get_iface(uaa->device, UPLCOM_SECOND_IFACE_INDEX); 476 if (iface) { 477 id = usbd_get_interface_descriptor(iface); 478 if (id == NULL) { 479 device_printf(dev, "no interface descriptor (2)\n"); 480 goto detach; 481 } 482 sc->sc_data_iface_no = id->bInterfaceNumber; 483 sc->sc_iface_index[0] = UPLCOM_SECOND_IFACE_INDEX; 484 usbd_set_parent_iface(uaa->device, 485 UPLCOM_SECOND_IFACE_INDEX, uaa->info.bIfaceIndex); 486 } else { 487 sc->sc_data_iface_no = sc->sc_ctrl_iface_no; 488 sc->sc_iface_index[0] = UPLCOM_IFACE_INDEX; 489 } 490 491 error = usbd_transfer_setup(uaa->device, 492 sc->sc_iface_index, sc->sc_xfer, uplcom_config_data, 493 UPLCOM_N_TRANSFER, sc, &sc->sc_mtx); 494 if (error) { 495 DPRINTF("one or more missing USB endpoints, " 496 "error=%s\n", usbd_errstr(error)); 497 goto detach; 498 } 499 error = uplcom_reset(sc, uaa->device); 500 if (error) { 501 device_printf(dev, "reset failed, error=%s\n", 502 usbd_errstr(error)); 503 goto detach; 504 } 505 506 if (sc->sc_chiptype == TYPE_PL2303) { 507 /* HX variants seem to lock up after a clear stall request. */ 508 mtx_lock(&sc->sc_mtx); 509 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 510 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 511 mtx_unlock(&sc->sc_mtx); 512 } else if (sc->sc_chiptype == TYPE_PL2303HX || 513 sc->sc_chiptype == TYPE_PL2303HXD) { 514 /* reset upstream data pipes */ 515 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 516 UPLCOM_SET_REQUEST, 8, 0, 0) || 517 uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 518 UPLCOM_SET_REQUEST, 9, 0, 0)) { 519 goto detach; 520 } 521 } else if (sc->sc_chiptype == TYPE_PL2303HXN) { 522 /* reset upstream data pipes */ 523 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 524 UPLCOM_SET_REQUEST_PL2303HXN, 0x07, 0x03, 0)) { 525 goto detach; 526 } 527 } 528 529 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 530 &uplcom_callback, &sc->sc_mtx); 531 if (error) { 532 goto detach; 533 } 534 /* 535 * do the initialization during attach so that the system does not 536 * sleep during open: 537 */ 538 if (uplcom_pl2303_init(uaa->device, sc->sc_chiptype)) { 539 device_printf(dev, "init failed\n"); 540 goto detach; 541 } 542 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 543 544 return (0); 545 546detach: 547 uplcom_detach(dev); 548 return (ENXIO); 549} 550 551static int 552uplcom_detach(device_t dev) 553{ 554 struct uplcom_softc *sc = device_get_softc(dev); 555 556 DPRINTF("sc=%p\n", sc); 557 558 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 559 usbd_transfer_unsetup(sc->sc_xfer, UPLCOM_N_TRANSFER); 560 561 device_claim_softc(dev); 562 563 uplcom_free_softc(sc); 564 565 return (0); 566} 567 568UCOM_UNLOAD_DRAIN(uplcom); 569 570static void 571uplcom_free_softc(struct uplcom_softc *sc) 572{ 573 if (ucom_unref(&sc->sc_super_ucom)) { 574 mtx_destroy(&sc->sc_mtx); 575 device_free_softc(sc); 576 } 577} 578 579static void 580uplcom_free(struct ucom_softc *ucom) 581{ 582 uplcom_free_softc(ucom->sc_parent); 583} 584 585static usb_error_t 586uplcom_reset(struct uplcom_softc *sc, struct usb_device *udev) 587{ 588 struct usb_device_request req; 589 590 if (sc->sc_chiptype == TYPE_PL2303HXN) { 591 /* PL2303HXN doesn't need this reset sequence */ 592 return (0); 593 } 594 595 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 596 req.bRequest = UPLCOM_SET_REQUEST; 597 USETW(req.wValue, 0); 598 req.wIndex[0] = sc->sc_data_iface_no; 599 req.wIndex[1] = 0; 600 USETW(req.wLength, 0); 601 602 return (usbd_do_request(udev, NULL, &req, NULL)); 603} 604 605static usb_error_t 606uplcom_pl2303_do(struct usb_device *udev, uint8_t req_type, uint8_t request, 607 uint16_t value, uint16_t index, uint16_t length) 608{ 609 struct usb_device_request req; 610 usb_error_t err; 611 uint8_t buf[4]; 612 613 req.bmRequestType = req_type; 614 req.bRequest = request; 615 USETW(req.wValue, value); 616 USETW(req.wIndex, index); 617 USETW(req.wLength, length); 618 619 err = usbd_do_request(udev, NULL, &req, buf); 620 if (err) { 621 DPRINTF("error=%s\n", usbd_errstr(err)); 622 return (1); 623 } 624 return (0); 625} 626 627static int 628uplcom_pl2303_init(struct usb_device *udev, uint8_t chiptype) 629{ 630 int err; 631 632 if (chiptype == TYPE_PL2303HXN) { 633 /* PL2303HXN doesn't need this initialization sequence */ 634 return (0); 635 } 636 637 if (uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 638 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 0, 0) 639 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 640 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1) 641 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 642 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 1, 0) 643 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 644 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1) 645 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0, 1, 0) 646 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 1, 0, 0)) 647 return (EIO); 648 649 if (chiptype != TYPE_PL2303) 650 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x44, 0); 651 else 652 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x24, 0); 653 if (err) 654 return (EIO); 655 656 return (0); 657} 658 659static void 660uplcom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 661{ 662 struct uplcom_softc *sc = ucom->sc_parent; 663 struct usb_device_request req; 664 665 DPRINTF("onoff = %d\n", onoff); 666 667 if (onoff) 668 sc->sc_line |= UCDC_LINE_DTR; 669 else 670 sc->sc_line &= ~UCDC_LINE_DTR; 671 672 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 673 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 674 USETW(req.wValue, sc->sc_line); 675 req.wIndex[0] = sc->sc_data_iface_no; 676 req.wIndex[1] = 0; 677 USETW(req.wLength, 0); 678 679 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 680 &req, NULL, 0, 1000); 681} 682 683static void 684uplcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff) 685{ 686 struct uplcom_softc *sc = ucom->sc_parent; 687 struct usb_device_request req; 688 689 DPRINTF("onoff = %d\n", onoff); 690 691 if (onoff) 692 sc->sc_line |= UCDC_LINE_RTS; 693 else 694 sc->sc_line &= ~UCDC_LINE_RTS; 695 696 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 697 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 698 USETW(req.wValue, sc->sc_line); 699 req.wIndex[0] = sc->sc_data_iface_no; 700 req.wIndex[1] = 0; 701 USETW(req.wLength, 0); 702 703 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 704 &req, NULL, 0, 1000); 705} 706 707static void 708uplcom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff) 709{ 710 struct uplcom_softc *sc = ucom->sc_parent; 711 struct usb_device_request req; 712 uint16_t temp; 713 714 DPRINTF("onoff = %d\n", onoff); 715 716 temp = (onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 717 718 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 719 req.bRequest = UCDC_SEND_BREAK; 720 USETW(req.wValue, temp); 721 req.wIndex[0] = sc->sc_data_iface_no; 722 req.wIndex[1] = 0; 723 USETW(req.wLength, 0); 724 725 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 726 &req, NULL, 0, 1000); 727} 728 729/* 730 * NOTE: These baud rates are officially supported, they can be written 731 * directly into dwDTERate register. 732 * 733 * Free baudrate setting is not supported by the base PL2303, and on 734 * other models it requires writing a divisor value to dwDTERate instead 735 * of the raw baudrate. The formula for divisor calculation is not published 736 * by the vendor, so it is speculative, though the official product homepage 737 * refers to the Linux module source as a reference implementation. 738 */ 739static const uint32_t uplcom_rates[] = { 740 /* 741 * Basic 'standard' speed rates, supported by all models 742 * NOTE: 900 and 56000 actually works as well 743 */ 744 75, 150, 300, 600, 900, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 745 19200, 28800, 38400, 56000, 57600, 115200, 746 /* 747 * Advanced speed rates up to 6Mbs, supported by HX/TA and HXD/TB/EA/RA 748 * NOTE: regardless of the spec, 256000 does not work 749 */ 750 128000, 134400, 161280, 201600, 230400, 268800, 403200, 460800, 614400, 751 806400, 921600, 1228800, 2457600, 3000000, 6000000, 752 /* 753 * Advanced speed rates up to 12, supported by HXD/TB/EA/RA 754 */ 755 12000000 756}; 757 758#define N_UPLCOM_RATES nitems(uplcom_rates) 759 760static int 761uplcom_baud_supported(unsigned speed) 762{ 763 int i; 764 for (i = 0; i < N_UPLCOM_RATES; i++) { 765 if (uplcom_rates[i] == speed) 766 return 1; 767 } 768 return 0; 769} 770 771static int 772uplcom_pre_param(struct ucom_softc *ucom, struct termios *t) 773{ 774 struct uplcom_softc *sc = ucom->sc_parent; 775 776 DPRINTF("\n"); 777 778 /** 779 * Check requested baud rate. 780 * 781 * The PL2303 can only set specific baud rates, up to 1228800 baud. 782 * The PL2303HX can set any baud rate up to 6Mb. 783 * The PL2303HX rev. D and PL2303HXN can set any baud rate up to 12Mb. 784 * 785 */ 786 787 /* accept raw divisor data, if someone wants to do the math in user domain */ 788 if (t->c_ospeed & 0x80000000) 789 return 0; 790 switch (sc->sc_chiptype) { 791 case TYPE_PL2303HXN: 792 if (t->c_ospeed <= 12000000) 793 return (0); 794 break; 795 case TYPE_PL2303HXD: 796 if (t->c_ospeed <= 12000000) 797 return (0); 798 break; 799 case TYPE_PL2303HX: 800 if (t->c_ospeed <= 6000000) 801 return (0); 802 break; 803 default: 804 if (uplcom_baud_supported(t->c_ospeed)) 805 return (0); 806 break; 807 } 808 809 DPRINTF("uplcom_param: bad baud rate (%d)\n", t->c_ospeed); 810 return (EIO); 811} 812 813static unsigned 814uplcom_encode_baud_rate_divisor(uint8_t *buf, unsigned baud) 815{ 816 unsigned baseline, mantissa, exponent; 817 818 /* Determine the baud rate divisor. This algorithm is taken from Linux. */ 819 /* 820 * Apparently the formula is: 821 * baudrate = baseline / (mantissa * 4^exponent) 822 * where 823 * mantissa = buf[8:0] 824 * exponent = buf[11:9] 825 */ 826 if (baud == 0) 827 baud = 1; 828 baseline = 383385600; 829 mantissa = baseline / baud; 830 if (mantissa == 0) 831 mantissa = 1; 832 exponent = 0; 833 while (mantissa >= 512) { 834 if (exponent < 7) { 835 mantissa >>= 2; /* divide by 4 */ 836 exponent++; 837 } else { 838 /* Exponent is maxed. Trim mantissa and leave. This gives approx. 45.8 baud */ 839 mantissa = 511; 840 break; 841 } 842 } 843 844 buf[3] = 0x80; 845 buf[2] = 0; 846 buf[1] = exponent << 1 | mantissa >> 8; 847 buf[0] = mantissa & 0xff; 848 849 /* Calculate and return the exact baud rate. */ 850 baud = (baseline / mantissa) >> (exponent << 1); 851 DPRINTF("real baud rate will be %u\n", baud); 852 853 return baud; 854} 855static void 856uplcom_cfg_param(struct ucom_softc *ucom, struct termios *t) 857{ 858 struct uplcom_softc *sc = ucom->sc_parent; 859 struct usb_cdc_line_state ls; 860 struct usb_device_request req; 861 862 DPRINTF("sc = %p\n", sc); 863 864 memset(&ls, 0, sizeof(ls)); 865 866 /* 867 * NOTE: If unsupported baud rates are set directly, the PL2303* uses 9600 baud. 868 */ 869 if ((t->c_ospeed & 0x80000000) || uplcom_baud_supported(t->c_ospeed)) 870 USETDW(ls.dwDTERate, t->c_ospeed); 871 else 872 t->c_ospeed = uplcom_encode_baud_rate_divisor((uint8_t*)&ls.dwDTERate, t->c_ospeed); 873 874 if (t->c_cflag & CSTOPB) { 875 if ((t->c_cflag & CSIZE) == CS5) { 876 /* 877 * NOTE: Comply with "real" UARTs / RS232: 878 * use 1.5 instead of 2 stop bits with 5 data bits 879 */ 880 ls.bCharFormat = UCDC_STOP_BIT_1_5; 881 } else { 882 ls.bCharFormat = UCDC_STOP_BIT_2; 883 } 884 } else { 885 ls.bCharFormat = UCDC_STOP_BIT_1; 886 } 887 888 if (t->c_cflag & PARENB) { 889 if (t->c_cflag & PARODD) { 890 ls.bParityType = UCDC_PARITY_ODD; 891 } else { 892 ls.bParityType = UCDC_PARITY_EVEN; 893 } 894 } else { 895 ls.bParityType = UCDC_PARITY_NONE; 896 } 897 898 switch (t->c_cflag & CSIZE) { 899 case CS5: 900 ls.bDataBits = 5; 901 break; 902 case CS6: 903 ls.bDataBits = 6; 904 break; 905 case CS7: 906 ls.bDataBits = 7; 907 break; 908 case CS8: 909 ls.bDataBits = 8; 910 break; 911 } 912 913 DPRINTF("rate=0x%08x fmt=%d parity=%d bits=%d\n", 914 UGETDW(ls.dwDTERate), ls.bCharFormat, 915 ls.bParityType, ls.bDataBits); 916 917 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 918 req.bRequest = UCDC_SET_LINE_CODING; 919 USETW(req.wValue, 0); 920 req.wIndex[0] = sc->sc_data_iface_no; 921 req.wIndex[1] = 0; 922 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 923 924 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 925 &req, &ls, 0, 1000); 926 927 if (t->c_cflag & CRTSCTS) { 928 DPRINTF("crtscts = on\n"); 929 930 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 931 if (sc->sc_chiptype == TYPE_PL2303HXN) { 932 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN; 933 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN); 934 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303HXN); 935 } else { 936 req.bRequest = UPLCOM_SET_REQUEST; 937 USETW(req.wValue, 0); 938 if (sc->sc_chiptype != TYPE_PL2303) 939 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303X); 940 else 941 USETW(req.wIndex, UPLCOM_SET_CRTSCTS); 942 } 943 USETW(req.wLength, 0); 944 945 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 946 &req, NULL, 0, 1000); 947 } else { 948 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 949 if (sc->sc_chiptype == TYPE_PL2303HXN) { 950 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN; 951 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN); 952 USETW(req.wIndex, UPLCOM_CLEAR_CRTSCTS_PL2303HXN); 953 } 954 else { 955 req.bRequest = UPLCOM_SET_REQUEST; 956 USETW(req.wValue, 0); 957 USETW(req.wIndex, 0); 958 } 959 USETW(req.wLength, 0); 960 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 961 &req, NULL, 0, 1000); 962 } 963} 964 965static void 966uplcom_start_read(struct ucom_softc *ucom) 967{ 968 struct uplcom_softc *sc = ucom->sc_parent; 969 970 /* start interrupt endpoint */ 971 usbd_transfer_start(sc->sc_xfer[UPLCOM_INTR_DT_RD]); 972 973 /* start read endpoint */ 974 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 975} 976 977static void 978uplcom_stop_read(struct ucom_softc *ucom) 979{ 980 struct uplcom_softc *sc = ucom->sc_parent; 981 982 /* stop interrupt endpoint */ 983 usbd_transfer_stop(sc->sc_xfer[UPLCOM_INTR_DT_RD]); 984 985 /* stop read endpoint */ 986 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 987} 988 989static void 990uplcom_start_write(struct ucom_softc *ucom) 991{ 992 struct uplcom_softc *sc = ucom->sc_parent; 993 994 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 995} 996 997static void 998uplcom_stop_write(struct ucom_softc *ucom) 999{ 1000 struct uplcom_softc *sc = ucom->sc_parent; 1001 1002 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 1003} 1004 1005static void 1006uplcom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 1007{ 1008 struct uplcom_softc *sc = ucom->sc_parent; 1009 1010 DPRINTF("\n"); 1011 1012 *lsr = sc->sc_lsr; 1013 *msr = sc->sc_msr; 1014} 1015 1016static void 1017uplcom_intr_callback(struct usb_xfer *xfer, usb_error_t error) 1018{ 1019 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1020 struct usb_page_cache *pc; 1021 uint8_t buf[9]; 1022 int actlen; 1023 1024 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1025 1026 switch (USB_GET_STATE(xfer)) { 1027 case USB_ST_TRANSFERRED: 1028 1029 DPRINTF("actlen = %u\n", actlen); 1030 1031 if (actlen >= 9) { 1032 pc = usbd_xfer_get_frame(xfer, 0); 1033 usbd_copy_out(pc, 0, buf, sizeof(buf)); 1034 1035 DPRINTF("status = 0x%02x\n", buf[UPLCOM_STATE_INDEX]); 1036 1037 sc->sc_lsr = 0; 1038 sc->sc_msr = 0; 1039 1040 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_CTS) { 1041 sc->sc_msr |= SER_CTS; 1042 } 1043 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_OVERRUN_ERROR) { 1044 sc->sc_lsr |= ULSR_OE; 1045 } 1046 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_PARITY_ERROR) { 1047 sc->sc_lsr |= ULSR_PE; 1048 } 1049 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_FRAME_ERROR) { 1050 sc->sc_lsr |= ULSR_FE; 1051 } 1052 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_RING) { 1053 sc->sc_msr |= SER_RI; 1054 } 1055 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_BREAK_ERROR) { 1056 sc->sc_lsr |= ULSR_BI; 1057 } 1058 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DSR) { 1059 sc->sc_msr |= SER_DSR; 1060 } 1061 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DCD) { 1062 sc->sc_msr |= SER_DCD; 1063 } 1064 ucom_status_change(&sc->sc_ucom); 1065 } 1066 case USB_ST_SETUP: 1067tr_setup: 1068 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1069 usbd_transfer_submit(xfer); 1070 return; 1071 1072 default: /* Error */ 1073 if (error != USB_ERR_CANCELLED) { 1074 /* try to clear stall first */ 1075 usbd_xfer_set_stall(xfer); 1076 goto tr_setup; 1077 } 1078 return; 1079 } 1080} 1081 1082static void 1083uplcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 1084{ 1085 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1086 struct usb_page_cache *pc; 1087 uint32_t actlen; 1088 1089 switch (USB_GET_STATE(xfer)) { 1090 case USB_ST_SETUP: 1091 case USB_ST_TRANSFERRED: 1092tr_setup: 1093 pc = usbd_xfer_get_frame(xfer, 0); 1094 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1095 UPLCOM_BULK_BUF_SIZE, &actlen)) { 1096 DPRINTF("actlen = %d\n", actlen); 1097 1098 usbd_xfer_set_frame_len(xfer, 0, actlen); 1099 usbd_transfer_submit(xfer); 1100 } 1101 return; 1102 1103 default: /* Error */ 1104 if (error != USB_ERR_CANCELLED) { 1105 /* try to clear stall first */ 1106 usbd_xfer_set_stall(xfer); 1107 goto tr_setup; 1108 } 1109 return; 1110 } 1111} 1112 1113static void 1114uplcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 1115{ 1116 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1117 struct usb_page_cache *pc; 1118 int actlen; 1119 1120 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1121 1122 switch (USB_GET_STATE(xfer)) { 1123 case USB_ST_TRANSFERRED: 1124 pc = usbd_xfer_get_frame(xfer, 0); 1125 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 1126 1127 case USB_ST_SETUP: 1128tr_setup: 1129 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1130 usbd_transfer_submit(xfer); 1131 return; 1132 1133 default: /* Error */ 1134 if (error != USB_ERR_CANCELLED) { 1135 /* try to clear stall first */ 1136 usbd_xfer_set_stall(xfer); 1137 goto tr_setup; 1138 } 1139 return; 1140 } 1141} 1142 1143static void 1144uplcom_poll(struct ucom_softc *ucom) 1145{ 1146 struct uplcom_softc *sc = ucom->sc_parent; 1147 usbd_transfer_poll(sc->sc_xfer, UPLCOM_N_TRANSFER); 1148} 1149