1 /* $NetBSD: uplcom.c,v 1.21 2001/11/13 06:24:56 lukem Exp $ */ 2 3 #include <sys/cdefs.h> 4 __FBSDID("$FreeBSD$"); 5 6 /*- 7 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD 8 * 9 * Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /*- 35 * Copyright (c) 2001 The NetBSD Foundation, Inc. 36 * All rights reserved. 37 * 38 * This code is derived from software contributed to The NetBSD Foundation 39 * by Ichiro FUKUHARA (ichiro@ichiro.org). 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 60 * POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * This driver supports several USB-to-RS232 serial adapters driven by 65 * Prolific PL-2303, PL-2303X and probably PL-2303HX USB-to-RS232 66 * bridge chip. The adapters are sold under many different brand 67 * names. 68 * 69 * Datasheets are available at Prolific www site at 70 * http://www.prolific.com.tw. The datasheets don't contain full 71 * programming information for the chip. 72 * 73 * PL-2303HX is probably programmed the same as PL-2303X. 74 * 75 * There are several differences between PL-2303 and PL-2303(H)X. 76 * PL-2303(H)X can do higher bitrate in bulk mode, has _probably_ 77 * different command for controlling CRTSCTS and needs special 78 * sequence of commands for initialization which aren't also 79 * documented in the datasheet. 80 */ 81 82 #include <sys/stdint.h> 83 #include <sys/stddef.h> 84 #include <sys/param.h> 85 #include <sys/queue.h> 86 #include <sys/types.h> 87 #include <sys/systm.h> 88 #include <sys/kernel.h> 89 #include <sys/bus.h> 90 #include <sys/module.h> 91 #include <sys/lock.h> 92 #include <sys/mutex.h> 93 #include <sys/condvar.h> 94 #include <sys/sysctl.h> 95 #include <sys/sx.h> 96 #include <sys/unistd.h> 97 #include <sys/callout.h> 98 #include <sys/malloc.h> 99 #include <sys/priv.h> 100 101 #include <dev/usb/usb.h> 102 #include <dev/usb/usbdi.h> 103 #include <dev/usb/usbdi_util.h> 104 #include <dev/usb/usb_cdc.h> 105 #include "usbdevs.h" 106 107 #define USB_DEBUG_VAR uplcom_debug 108 #include <dev/usb/usb_debug.h> 109 #include <dev/usb/usb_process.h> 110 111 #include <dev/usb/serial/usb_serial.h> 112 113 #ifdef USB_DEBUG 114 static int uplcom_debug = 0; 115 116 static SYSCTL_NODE(_hw_usb, OID_AUTO, uplcom, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 117 "USB uplcom"); 118 SYSCTL_INT(_hw_usb_uplcom, OID_AUTO, debug, CTLFLAG_RWTUN, 119 &uplcom_debug, 0, "Debug level"); 120 #endif 121 122 #define UPLCOM_MODVER 1 /* module version */ 123 124 #define UPLCOM_CONFIG_INDEX 0 125 #define UPLCOM_IFACE_INDEX 0 126 #define UPLCOM_SECOND_IFACE_INDEX 1 127 128 #ifndef UPLCOM_INTR_INTERVAL 129 #define UPLCOM_INTR_INTERVAL 0 /* default */ 130 #endif 131 132 #define UPLCOM_BULK_BUF_SIZE 1024 /* bytes */ 133 134 #define UPLCOM_SET_REQUEST 0x01 135 #define UPLCOM_SET_REQUEST_PL2303HXN 0x80 136 #define UPLCOM_SET_CRTSCTS 0x41 137 #define UPLCOM_SET_CRTSCTS_PL2303X 0x61 138 #define UPLCOM_SET_CRTSCTS_PL2303HXN 0xFA 139 #define UPLCOM_CLEAR_CRTSCTS_PL2303HXN 0xFF 140 #define UPLCOM_CRTSCTS_REG_PL2303HXN 0x0A 141 #define UPLCOM_STATUS_REG_PL2303HX 0x8080 142 #define RSAQ_STATUS_CTS 0x80 143 #define RSAQ_STATUS_OVERRUN_ERROR 0x40 144 #define RSAQ_STATUS_PARITY_ERROR 0x20 145 #define RSAQ_STATUS_FRAME_ERROR 0x10 146 #define RSAQ_STATUS_RING 0x08 147 #define RSAQ_STATUS_BREAK_ERROR 0x04 148 #define RSAQ_STATUS_DSR 0x02 149 #define RSAQ_STATUS_DCD 0x01 150 151 #define TYPE_PL2303 0 152 #define TYPE_PL2303HX 1 153 #define TYPE_PL2303HXD 2 154 #define TYPE_PL2303HXN 3 155 156 #define UPLCOM_STATE_INDEX 8 157 158 enum { 159 UPLCOM_BULK_DT_WR, 160 UPLCOM_BULK_DT_RD, 161 UPLCOM_INTR_DT_RD, 162 UPLCOM_N_TRANSFER, 163 }; 164 165 struct uplcom_softc { 166 struct ucom_super_softc sc_super_ucom; 167 struct ucom_softc sc_ucom; 168 169 struct usb_xfer *sc_xfer[UPLCOM_N_TRANSFER]; 170 struct usb_device *sc_udev; 171 struct mtx sc_mtx; 172 173 uint16_t sc_line; 174 175 uint8_t sc_lsr; /* local status register */ 176 uint8_t sc_msr; /* uplcom status register */ 177 uint8_t sc_chiptype; /* type of chip */ 178 uint8_t sc_ctrl_iface_no; 179 uint8_t sc_data_iface_no; 180 uint8_t sc_iface_index[2]; 181 }; 182 183 /* prototypes */ 184 185 static usb_error_t uplcom_reset(struct uplcom_softc *, struct usb_device *); 186 static usb_error_t uplcom_pl2303_do(struct usb_device *, uint8_t, uint8_t, 187 uint16_t, uint16_t, uint16_t); 188 static int uplcom_pl2303_init(struct usb_device *, uint8_t); 189 static void uplcom_free(struct ucom_softc *); 190 static void uplcom_cfg_set_dtr(struct ucom_softc *, uint8_t); 191 static void uplcom_cfg_set_rts(struct ucom_softc *, uint8_t); 192 static void uplcom_cfg_set_break(struct ucom_softc *, uint8_t); 193 static int uplcom_pre_param(struct ucom_softc *, struct termios *); 194 static void uplcom_cfg_param(struct ucom_softc *, struct termios *); 195 static void uplcom_start_read(struct ucom_softc *); 196 static void uplcom_stop_read(struct ucom_softc *); 197 static void uplcom_start_write(struct ucom_softc *); 198 static void uplcom_stop_write(struct ucom_softc *); 199 static void uplcom_cfg_get_status(struct ucom_softc *, uint8_t *, 200 uint8_t *); 201 static void uplcom_poll(struct ucom_softc *ucom); 202 203 static device_probe_t uplcom_probe; 204 static device_attach_t uplcom_attach; 205 static device_detach_t uplcom_detach; 206 static void uplcom_free_softc(struct uplcom_softc *); 207 208 static usb_callback_t uplcom_intr_callback; 209 static usb_callback_t uplcom_write_callback; 210 static usb_callback_t uplcom_read_callback; 211 212 static const struct usb_config uplcom_config_data[UPLCOM_N_TRANSFER] = { 213 [UPLCOM_BULK_DT_WR] = { 214 .type = UE_BULK, 215 .endpoint = UE_ADDR_ANY, 216 .direction = UE_DIR_OUT, 217 .bufsize = UPLCOM_BULK_BUF_SIZE, 218 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 219 .callback = &uplcom_write_callback, 220 .if_index = 0, 221 }, 222 223 [UPLCOM_BULK_DT_RD] = { 224 .type = UE_BULK, 225 .endpoint = UE_ADDR_ANY, 226 .direction = UE_DIR_IN, 227 .bufsize = UPLCOM_BULK_BUF_SIZE, 228 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 229 .callback = &uplcom_read_callback, 230 .if_index = 0, 231 }, 232 233 [UPLCOM_INTR_DT_RD] = { 234 .type = UE_INTERRUPT, 235 .endpoint = UE_ADDR_ANY, 236 .direction = UE_DIR_IN, 237 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 238 .bufsize = 0, /* use wMaxPacketSize */ 239 .callback = &uplcom_intr_callback, 240 .if_index = 1, 241 }, 242 }; 243 244 static struct ucom_callback uplcom_callback = { 245 .ucom_cfg_get_status = &uplcom_cfg_get_status, 246 .ucom_cfg_set_dtr = &uplcom_cfg_set_dtr, 247 .ucom_cfg_set_rts = &uplcom_cfg_set_rts, 248 .ucom_cfg_set_break = &uplcom_cfg_set_break, 249 .ucom_cfg_param = &uplcom_cfg_param, 250 .ucom_pre_param = &uplcom_pre_param, 251 .ucom_start_read = &uplcom_start_read, 252 .ucom_stop_read = &uplcom_stop_read, 253 .ucom_start_write = &uplcom_start_write, 254 .ucom_stop_write = &uplcom_stop_write, 255 .ucom_poll = &uplcom_poll, 256 .ucom_free = &uplcom_free, 257 }; 258 259 #define UPLCOM_DEV(v,p) \ 260 { USB_VENDOR(USB_VENDOR_##v), USB_PRODUCT(USB_PRODUCT_##v##_##p) } 261 262 static const STRUCT_USB_HOST_ID uplcom_devs[] = { 263 UPLCOM_DEV(ACERP, S81), /* BenQ S81 phone */ 264 UPLCOM_DEV(ADLINK, ND6530), /* ADLINK ND-6530 USB-Serial */ 265 UPLCOM_DEV(ALCATEL, OT535), /* Alcatel One Touch 535/735 */ 266 UPLCOM_DEV(ALCOR, AU9720), /* Alcor AU9720 USB 2.0-RS232 */ 267 UPLCOM_DEV(ANCHOR, SERIAL), /* Anchor Serial adapter */ 268 UPLCOM_DEV(ATEN, UC232A), /* PLANEX USB-RS232 URS-03 */ 269 UPLCOM_DEV(ATEN, UC232B), /* Prolific USB-RS232 Controller D */ 270 UPLCOM_DEV(BELKIN, F5U257), /* Belkin F5U257 USB to Serial */ 271 UPLCOM_DEV(COREGA, CGUSBRS232R), /* Corega CG-USBRS232R */ 272 UPLCOM_DEV(EPSON, CRESSI_EDY), /* Cressi Edy diving computer */ 273 UPLCOM_DEV(EPSON, N2ITION3), /* Zeagle N2iTion3 diving computer */ 274 UPLCOM_DEV(ELECOM, UCSGT), /* ELECOM UC-SGT Serial Adapter */ 275 UPLCOM_DEV(ELECOM, UCSGT0), /* ELECOM UC-SGT Serial Adapter */ 276 UPLCOM_DEV(HAL, IMR001), /* HAL Corporation Crossam2+USB */ 277 UPLCOM_DEV(HP, LD220), /* HP LD220 POS Display */ 278 UPLCOM_DEV(IODATA, USBRSAQ), /* I/O DATA USB-RSAQ */ 279 UPLCOM_DEV(IODATA, USBRSAQ5), /* I/O DATA USB-RSAQ5 */ 280 UPLCOM_DEV(ITEGNO, WM1080A), /* iTegno WM1080A GSM/GFPRS modem */ 281 UPLCOM_DEV(ITEGNO, WM2080A), /* iTegno WM2080A CDMA modem */ 282 UPLCOM_DEV(LEADTEK, 9531), /* Leadtek 9531 GPS */ 283 UPLCOM_DEV(MICROSOFT, 700WX), /* Microsoft Palm 700WX */ 284 UPLCOM_DEV(MOBILEACTION, MA620), /* Mobile Action MA-620 Infrared Adapter */ 285 UPLCOM_DEV(NETINDEX, WS002IN), /* Willcom W-S002IN */ 286 UPLCOM_DEV(NOKIA2, CA42), /* Nokia CA-42 cable */ 287 UPLCOM_DEV(OTI, DKU5), /* OTI DKU-5 cable */ 288 UPLCOM_DEV(PANASONIC, TYTP50P6S), /* Panasonic TY-TP50P6-S flat screen */ 289 UPLCOM_DEV(PLX, CA42), /* PLX CA-42 clone cable */ 290 UPLCOM_DEV(PROLIFIC, ALLTRONIX_GPRS), /* Alltronix ACM003U00 modem */ 291 UPLCOM_DEV(PROLIFIC, ALDIGA_AL11U), /* AlDiga AL-11U modem */ 292 UPLCOM_DEV(PROLIFIC, DCU11), /* DCU-11 Phone Cable */ 293 UPLCOM_DEV(PROLIFIC, HCR331), /* HCR331 Card Reader */ 294 UPLCOM_DEV(PROLIFIC, MICROMAX_610U), /* Micromax 610U modem */ 295 UPLCOM_DEV(PROLIFIC, MOTOROLA), /* Motorola cable */ 296 UPLCOM_DEV(PROLIFIC, PHAROS), /* Prolific Pharos */ 297 UPLCOM_DEV(PROLIFIC, PL2303), /* Generic adapter */ 298 UPLCOM_DEV(PROLIFIC, PL2303GC), /* Generic adapter (PL2303HXN, type GC) */ 299 UPLCOM_DEV(PROLIFIC, PL2303GB), /* Generic adapter (PL2303HXN, type GB) */ 300 UPLCOM_DEV(PROLIFIC, PL2303GT), /* Generic adapter (PL2303HXN, type GT) */ 301 UPLCOM_DEV(PROLIFIC, PL2303GL), /* Generic adapter (PL2303HXN, type GL) */ 302 UPLCOM_DEV(PROLIFIC, PL2303GE), /* Generic adapter (PL2303HXN, type GE) */ 303 UPLCOM_DEV(PROLIFIC, PL2303GS), /* Generic adapter (PL2303HXN, type GS) */ 304 UPLCOM_DEV(PROLIFIC, RSAQ2), /* I/O DATA USB-RSAQ2 */ 305 UPLCOM_DEV(PROLIFIC, RSAQ3), /* I/O DATA USB-RSAQ3 */ 306 UPLCOM_DEV(PROLIFIC, UIC_MSR206), /* UIC MSR206 Card Reader */ 307 UPLCOM_DEV(PROLIFIC2, PL2303), /* Prolific adapter */ 308 UPLCOM_DEV(RADIOSHACK, USBCABLE), /* Radio Shack USB Adapter */ 309 UPLCOM_DEV(RATOC, REXUSB60), /* RATOC REX-USB60 */ 310 UPLCOM_DEV(SAGEM, USBSERIAL), /* Sagem USB-Serial Controller */ 311 UPLCOM_DEV(SAMSUNG, I330), /* Samsung I330 phone cradle */ 312 UPLCOM_DEV(SANWA, KB_USB2), /* Sanwa KB-USB2 Multimeter cable */ 313 UPLCOM_DEV(SIEMENS3, EF81), /* Siemens EF81 */ 314 UPLCOM_DEV(SIEMENS3, SX1), /* Siemens SX1 */ 315 UPLCOM_DEV(SIEMENS3, X65), /* Siemens X65 */ 316 UPLCOM_DEV(SIEMENS3, X75), /* Siemens X75 */ 317 UPLCOM_DEV(SITECOM, SERIAL), /* Sitecom USB to Serial */ 318 UPLCOM_DEV(SMART, PL2303), /* SMART Technologies USB to Serial */ 319 UPLCOM_DEV(SONY, QN3), /* Sony QN3 phone cable */ 320 UPLCOM_DEV(SONYERICSSON, DATAPILOT), /* Sony Ericsson Datapilot */ 321 UPLCOM_DEV(SONYERICSSON, DCU10), /* Sony Ericsson DCU-10 Cable */ 322 UPLCOM_DEV(SOURCENEXT, KEIKAI8), /* SOURCENEXT KeikaiDenwa 8 */ 323 UPLCOM_DEV(SOURCENEXT, KEIKAI8_CHG), /* SOURCENEXT KeikaiDenwa 8 with charger */ 324 UPLCOM_DEV(SPEEDDRAGON, MS3303H), /* Speed Dragon USB-Serial */ 325 UPLCOM_DEV(SYNTECH, CPT8001C), /* Syntech CPT-8001C Barcode scanner */ 326 UPLCOM_DEV(TDK, UHA6400), /* TDK USB-PHS Adapter UHA6400 */ 327 UPLCOM_DEV(TDK, UPA9664), /* TDK USB-PHS Adapter UPA9664 */ 328 UPLCOM_DEV(TRIPPLITE, U209), /* Tripp-Lite U209-000-R USB to Serial */ 329 UPLCOM_DEV(YCCABLE, PL2303), /* YC Cable USB-Serial */ 330 }; 331 #undef UPLCOM_DEV 332 333 static device_method_t uplcom_methods[] = { 334 DEVMETHOD(device_probe, uplcom_probe), 335 DEVMETHOD(device_attach, uplcom_attach), 336 DEVMETHOD(device_detach, uplcom_detach), 337 DEVMETHOD_END 338 }; 339 340 static devclass_t uplcom_devclass; 341 342 static driver_t uplcom_driver = { 343 .name = "uplcom", 344 .methods = uplcom_methods, 345 .size = sizeof(struct uplcom_softc), 346 }; 347 348 DRIVER_MODULE(uplcom, uhub, uplcom_driver, uplcom_devclass, NULL, 0); 349 MODULE_DEPEND(uplcom, ucom, 1, 1, 1); 350 MODULE_DEPEND(uplcom, usb, 1, 1, 1); 351 MODULE_VERSION(uplcom, UPLCOM_MODVER); 352 USB_PNP_HOST_INFO(uplcom_devs); 353 354 static int 355 uplcom_probe(device_t dev) 356 { 357 struct usb_attach_arg *uaa = device_get_ivars(dev); 358 359 DPRINTFN(11, "\n"); 360 361 if (uaa->usb_mode != USB_MODE_HOST) { 362 return (ENXIO); 363 } 364 if (uaa->info.bConfigIndex != UPLCOM_CONFIG_INDEX) { 365 return (ENXIO); 366 } 367 if (uaa->info.bIfaceIndex != UPLCOM_IFACE_INDEX) { 368 return (ENXIO); 369 } 370 return (usbd_lookup_id_by_uaa(uplcom_devs, sizeof(uplcom_devs), uaa)); 371 } 372 373 static int 374 uplcom_attach(device_t dev) 375 { 376 struct usb_attach_arg *uaa = device_get_ivars(dev); 377 struct uplcom_softc *sc = device_get_softc(dev); 378 struct usb_interface *iface; 379 struct usb_interface_descriptor *id; 380 struct usb_device_descriptor *dd; 381 int error; 382 383 struct usb_device_request req; 384 usb_error_t err; 385 uint8_t buf[4]; 386 387 DPRINTFN(11, "\n"); 388 389 device_set_usb_desc(dev); 390 mtx_init(&sc->sc_mtx, "uplcom", NULL, MTX_DEF); 391 ucom_ref(&sc->sc_super_ucom); 392 393 DPRINTF("sc = %p\n", sc); 394 395 sc->sc_udev = uaa->device; 396 397 dd = usbd_get_device_descriptor(sc->sc_udev); 398 399 switch (UGETW(dd->bcdDevice)) { 400 case 0x0300: 401 sc->sc_chiptype = TYPE_PL2303HX; 402 /* or TA, that is HX with external crystal */ 403 break; 404 case 0x0400: 405 sc->sc_chiptype = TYPE_PL2303HXD; 406 /* or EA, that is HXD with ESD protection */ 407 /* or RA, that has internal voltage level converter that works only up to 1Mbaud (!) */ 408 break; 409 case 0x0500: 410 sc->sc_chiptype = TYPE_PL2303HXD; 411 /* in fact it's TB, that is HXD with external crystal */ 412 break; 413 default: 414 /* NOTE: I have no info about the bcdDevice for the base PL2303 (up to 1.2Mbaud, 415 only fixed rates) and for PL2303SA (8-pin chip, up to 115200 baud */ 416 /* Determine the chip type. This algorithm is taken from Linux. */ 417 if (dd->bDeviceClass == 0x02) 418 sc->sc_chiptype = TYPE_PL2303; 419 else if (dd->bMaxPacketSize == 0x40) 420 sc->sc_chiptype = TYPE_PL2303HX; 421 else 422 sc->sc_chiptype = TYPE_PL2303; 423 break; 424 } 425 426 /* 427 * The new chip revision PL2303HXN is only compatible with the new 428 * UPLCOM_SET_REQUEST_PL2303HXN command. Issuing the old command 429 * UPLCOM_SET_REQUEST to the new chip raises an error. Thus, PL2303HX 430 * and PL2303HXN can be distinguished by issuing an old-style request 431 * (on a status register) to the new chip and checking the error. 432 */ 433 if (sc->sc_chiptype == TYPE_PL2303HX) { 434 req.bmRequestType = UT_READ_VENDOR_DEVICE; 435 req.bRequest = UPLCOM_SET_REQUEST; 436 USETW(req.wValue, UPLCOM_STATUS_REG_PL2303HX); 437 req.wIndex[0] = sc->sc_data_iface_no; 438 req.wIndex[1] = 0; 439 USETW(req.wLength, 1); 440 err = usbd_do_request(sc->sc_udev, NULL, &req, buf); 441 if (err) 442 sc->sc_chiptype = TYPE_PL2303HXN; 443 } 444 445 switch (sc->sc_chiptype) { 446 case TYPE_PL2303: 447 DPRINTF("chiptype: 2303\n"); 448 break; 449 case TYPE_PL2303HX: 450 DPRINTF("chiptype: 2303HX/TA\n"); 451 break; 452 case TYPE_PL2303HXN: 453 DPRINTF("chiptype: 2303HXN\n"); 454 break; 455 case TYPE_PL2303HXD: 456 DPRINTF("chiptype: 2303HXD/TB/RA/EA\n"); 457 break; 458 default: 459 DPRINTF("chiptype: unknown %d\n", sc->sc_chiptype); 460 break; 461 } 462 463 /* 464 * USB-RSAQ1 has two interface 465 * 466 * USB-RSAQ1 | USB-RSAQ2 467 * -----------------+----------------- 468 * Interface 0 |Interface 0 469 * Interrupt(0x81) | Interrupt(0x81) 470 * -----------------+ BulkIN(0x02) 471 * Interface 1 | BulkOUT(0x83) 472 * BulkIN(0x02) | 473 * BulkOUT(0x83) | 474 */ 475 476 sc->sc_ctrl_iface_no = uaa->info.bIfaceNum; 477 sc->sc_iface_index[1] = UPLCOM_IFACE_INDEX; 478 479 iface = usbd_get_iface(uaa->device, UPLCOM_SECOND_IFACE_INDEX); 480 if (iface) { 481 id = usbd_get_interface_descriptor(iface); 482 if (id == NULL) { 483 device_printf(dev, "no interface descriptor (2)\n"); 484 goto detach; 485 } 486 sc->sc_data_iface_no = id->bInterfaceNumber; 487 sc->sc_iface_index[0] = UPLCOM_SECOND_IFACE_INDEX; 488 usbd_set_parent_iface(uaa->device, 489 UPLCOM_SECOND_IFACE_INDEX, uaa->info.bIfaceIndex); 490 } else { 491 sc->sc_data_iface_no = sc->sc_ctrl_iface_no; 492 sc->sc_iface_index[0] = UPLCOM_IFACE_INDEX; 493 } 494 495 error = usbd_transfer_setup(uaa->device, 496 sc->sc_iface_index, sc->sc_xfer, uplcom_config_data, 497 UPLCOM_N_TRANSFER, sc, &sc->sc_mtx); 498 if (error) { 499 DPRINTF("one or more missing USB endpoints, " 500 "error=%s\n", usbd_errstr(error)); 501 goto detach; 502 } 503 error = uplcom_reset(sc, uaa->device); 504 if (error) { 505 device_printf(dev, "reset failed, error=%s\n", 506 usbd_errstr(error)); 507 goto detach; 508 } 509 510 if (sc->sc_chiptype == TYPE_PL2303) { 511 /* HX variants seem to lock up after a clear stall request. */ 512 mtx_lock(&sc->sc_mtx); 513 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 514 usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 515 mtx_unlock(&sc->sc_mtx); 516 } else if (sc->sc_chiptype == TYPE_PL2303HX || 517 sc->sc_chiptype == TYPE_PL2303HXD) { 518 /* reset upstream data pipes */ 519 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 520 UPLCOM_SET_REQUEST, 8, 0, 0) || 521 uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 522 UPLCOM_SET_REQUEST, 9, 0, 0)) { 523 goto detach; 524 } 525 } else if (sc->sc_chiptype == TYPE_PL2303HXN) { 526 /* reset upstream data pipes */ 527 if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, 528 UPLCOM_SET_REQUEST_PL2303HXN, 0x07, 0x03, 0)) { 529 goto detach; 530 } 531 } 532 533 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 534 &uplcom_callback, &sc->sc_mtx); 535 if (error) { 536 goto detach; 537 } 538 /* 539 * do the initialization during attach so that the system does not 540 * sleep during open: 541 */ 542 if (uplcom_pl2303_init(uaa->device, sc->sc_chiptype)) { 543 device_printf(dev, "init failed\n"); 544 goto detach; 545 } 546 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 547 548 return (0); 549 550 detach: 551 uplcom_detach(dev); 552 return (ENXIO); 553 } 554 555 static int 556 uplcom_detach(device_t dev) 557 { 558 struct uplcom_softc *sc = device_get_softc(dev); 559 560 DPRINTF("sc=%p\n", sc); 561 562 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 563 usbd_transfer_unsetup(sc->sc_xfer, UPLCOM_N_TRANSFER); 564 565 device_claim_softc(dev); 566 567 uplcom_free_softc(sc); 568 569 return (0); 570 } 571 572 UCOM_UNLOAD_DRAIN(uplcom); 573 574 static void 575 uplcom_free_softc(struct uplcom_softc *sc) 576 { 577 if (ucom_unref(&sc->sc_super_ucom)) { 578 mtx_destroy(&sc->sc_mtx); 579 device_free_softc(sc); 580 } 581 } 582 583 static void 584 uplcom_free(struct ucom_softc *ucom) 585 { 586 uplcom_free_softc(ucom->sc_parent); 587 } 588 589 static usb_error_t 590 uplcom_reset(struct uplcom_softc *sc, struct usb_device *udev) 591 { 592 struct usb_device_request req; 593 594 if (sc->sc_chiptype == TYPE_PL2303HXN) { 595 /* PL2303HXN doesn't need this reset sequence */ 596 return (0); 597 } 598 599 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 600 req.bRequest = UPLCOM_SET_REQUEST; 601 USETW(req.wValue, 0); 602 req.wIndex[0] = sc->sc_data_iface_no; 603 req.wIndex[1] = 0; 604 USETW(req.wLength, 0); 605 606 return (usbd_do_request(udev, NULL, &req, NULL)); 607 } 608 609 static usb_error_t 610 uplcom_pl2303_do(struct usb_device *udev, uint8_t req_type, uint8_t request, 611 uint16_t value, uint16_t index, uint16_t length) 612 { 613 struct usb_device_request req; 614 usb_error_t err; 615 uint8_t buf[4]; 616 617 req.bmRequestType = req_type; 618 req.bRequest = request; 619 USETW(req.wValue, value); 620 USETW(req.wIndex, index); 621 USETW(req.wLength, length); 622 623 err = usbd_do_request(udev, NULL, &req, buf); 624 if (err) { 625 DPRINTF("error=%s\n", usbd_errstr(err)); 626 return (1); 627 } 628 return (0); 629 } 630 631 static int 632 uplcom_pl2303_init(struct usb_device *udev, uint8_t chiptype) 633 { 634 int err; 635 636 if (chiptype == TYPE_PL2303HXN) { 637 /* PL2303HXN doesn't need this initialization sequence */ 638 return (0); 639 } 640 641 if (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, 0, 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_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 646 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404, 1, 0) 647 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8484, 0, 1) 648 || uplcom_pl2303_do(udev, UT_READ_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x8383, 0, 1) 649 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0, 1, 0) 650 || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 1, 0, 0)) 651 return (EIO); 652 653 if (chiptype != TYPE_PL2303) 654 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x44, 0); 655 else 656 err = uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 2, 0x24, 0); 657 if (err) 658 return (EIO); 659 660 return (0); 661 } 662 663 static void 664 uplcom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 665 { 666 struct uplcom_softc *sc = ucom->sc_parent; 667 struct usb_device_request req; 668 669 DPRINTF("onoff = %d\n", onoff); 670 671 if (onoff) 672 sc->sc_line |= UCDC_LINE_DTR; 673 else 674 sc->sc_line &= ~UCDC_LINE_DTR; 675 676 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 677 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 678 USETW(req.wValue, sc->sc_line); 679 req.wIndex[0] = sc->sc_data_iface_no; 680 req.wIndex[1] = 0; 681 USETW(req.wLength, 0); 682 683 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 684 &req, NULL, 0, 1000); 685 } 686 687 static void 688 uplcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff) 689 { 690 struct uplcom_softc *sc = ucom->sc_parent; 691 struct usb_device_request req; 692 693 DPRINTF("onoff = %d\n", onoff); 694 695 if (onoff) 696 sc->sc_line |= UCDC_LINE_RTS; 697 else 698 sc->sc_line &= ~UCDC_LINE_RTS; 699 700 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 701 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 702 USETW(req.wValue, sc->sc_line); 703 req.wIndex[0] = sc->sc_data_iface_no; 704 req.wIndex[1] = 0; 705 USETW(req.wLength, 0); 706 707 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 708 &req, NULL, 0, 1000); 709 } 710 711 static void 712 uplcom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff) 713 { 714 struct uplcom_softc *sc = ucom->sc_parent; 715 struct usb_device_request req; 716 uint16_t temp; 717 718 DPRINTF("onoff = %d\n", onoff); 719 720 temp = (onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 721 722 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 723 req.bRequest = UCDC_SEND_BREAK; 724 USETW(req.wValue, temp); 725 req.wIndex[0] = sc->sc_data_iface_no; 726 req.wIndex[1] = 0; 727 USETW(req.wLength, 0); 728 729 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 730 &req, NULL, 0, 1000); 731 } 732 733 /* 734 * NOTE: These baud rates are officially supported, they can be written 735 * directly into dwDTERate register. 736 * 737 * Free baudrate setting is not supported by the base PL2303, and on 738 * other models it requires writing a divisor value to dwDTERate instead 739 * of the raw baudrate. The formula for divisor calculation is not published 740 * by the vendor, so it is speculative, though the official product homepage 741 * refers to the Linux module source as a reference implementation. 742 */ 743 static const uint32_t uplcom_rates[] = { 744 /* 745 * Basic 'standard' speed rates, supported by all models 746 * NOTE: 900 and 56000 actually works as well 747 */ 748 75, 150, 300, 600, 900, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 749 19200, 28800, 38400, 56000, 57600, 115200, 750 /* 751 * Advanced speed rates up to 6Mbs, supported by HX/TA and HXD/TB/EA/RA 752 * NOTE: regardless of the spec, 256000 does not work 753 */ 754 128000, 134400, 161280, 201600, 230400, 268800, 403200, 460800, 614400, 755 806400, 921600, 1228800, 2457600, 3000000, 6000000, 756 /* 757 * Advanced speed rates up to 12, supported by HXD/TB/EA/RA 758 */ 759 12000000 760 }; 761 762 #define N_UPLCOM_RATES nitems(uplcom_rates) 763 764 static int 765 uplcom_baud_supported(unsigned int speed) 766 { 767 int i; 768 for (i = 0; i < N_UPLCOM_RATES; i++) { 769 if (uplcom_rates[i] == speed) 770 return 1; 771 } 772 return 0; 773 } 774 775 static int 776 uplcom_pre_param(struct ucom_softc *ucom, struct termios *t) 777 { 778 struct uplcom_softc *sc = ucom->sc_parent; 779 780 DPRINTF("\n"); 781 782 /** 783 * Check requested baud rate. 784 * 785 * The PL2303 can only set specific baud rates, up to 1228800 baud. 786 * The PL2303HX can set any baud rate up to 6Mb. 787 * The PL2303HX rev. D and PL2303HXN can set any baud rate up to 12Mb. 788 * 789 */ 790 791 /* accept raw divisor data, if someone wants to do the math in user domain */ 792 if (t->c_ospeed & 0x80000000) 793 return 0; 794 switch (sc->sc_chiptype) { 795 case TYPE_PL2303HXN: 796 if (t->c_ospeed <= 12000000) 797 return (0); 798 break; 799 case TYPE_PL2303HXD: 800 if (t->c_ospeed <= 12000000) 801 return (0); 802 break; 803 case TYPE_PL2303HX: 804 if (t->c_ospeed <= 6000000) 805 return (0); 806 break; 807 default: 808 if (uplcom_baud_supported(t->c_ospeed)) 809 return (0); 810 break; 811 } 812 813 DPRINTF("uplcom_param: bad baud rate (%d)\n", t->c_ospeed); 814 return (EIO); 815 } 816 817 static unsigned int 818 uplcom_encode_baud_rate_divisor(uint8_t *buf, unsigned int baud) 819 { 820 unsigned int baseline, mantissa, exponent; 821 822 /* Determine the baud rate divisor. This algorithm is taken from Linux. */ 823 /* 824 * Apparently the formula is: 825 * baudrate = baseline / (mantissa * 4^exponent) 826 * where 827 * mantissa = buf[8:0] 828 * exponent = buf[11:9] 829 */ 830 if (baud == 0) 831 baud = 1; 832 baseline = 383385600; 833 mantissa = baseline / baud; 834 if (mantissa == 0) 835 mantissa = 1; 836 exponent = 0; 837 while (mantissa >= 512) { 838 if (exponent < 7) { 839 mantissa >>= 2; /* divide by 4 */ 840 exponent++; 841 } else { 842 /* Exponent is maxed. Trim mantissa and leave. This gives approx. 45.8 baud */ 843 mantissa = 511; 844 break; 845 } 846 } 847 848 buf[3] = 0x80; 849 buf[2] = 0; 850 buf[1] = exponent << 1 | mantissa >> 8; 851 buf[0] = mantissa & 0xff; 852 853 /* Calculate and return the exact baud rate. */ 854 baud = (baseline / mantissa) >> (exponent << 1); 855 DPRINTF("real baud rate will be %u\n", baud); 856 857 return baud; 858 } 859 static void 860 uplcom_cfg_param(struct ucom_softc *ucom, struct termios *t) 861 { 862 struct uplcom_softc *sc = ucom->sc_parent; 863 struct usb_cdc_line_state ls; 864 struct usb_device_request req; 865 866 DPRINTF("sc = %p\n", sc); 867 868 memset(&ls, 0, sizeof(ls)); 869 870 /* 871 * NOTE: If unsupported baud rates are set directly, the PL2303* uses 9600 baud. 872 */ 873 if ((t->c_ospeed & 0x80000000) || uplcom_baud_supported(t->c_ospeed)) 874 USETDW(ls.dwDTERate, t->c_ospeed); 875 else 876 t->c_ospeed = uplcom_encode_baud_rate_divisor((uint8_t*)&ls.dwDTERate, t->c_ospeed); 877 878 if (t->c_cflag & CSTOPB) { 879 if ((t->c_cflag & CSIZE) == CS5) { 880 /* 881 * NOTE: Comply with "real" UARTs / RS232: 882 * use 1.5 instead of 2 stop bits with 5 data bits 883 */ 884 ls.bCharFormat = UCDC_STOP_BIT_1_5; 885 } else { 886 ls.bCharFormat = UCDC_STOP_BIT_2; 887 } 888 } else { 889 ls.bCharFormat = UCDC_STOP_BIT_1; 890 } 891 892 if (t->c_cflag & PARENB) { 893 if (t->c_cflag & PARODD) { 894 ls.bParityType = UCDC_PARITY_ODD; 895 } else { 896 ls.bParityType = UCDC_PARITY_EVEN; 897 } 898 } else { 899 ls.bParityType = UCDC_PARITY_NONE; 900 } 901 902 switch (t->c_cflag & CSIZE) { 903 case CS5: 904 ls.bDataBits = 5; 905 break; 906 case CS6: 907 ls.bDataBits = 6; 908 break; 909 case CS7: 910 ls.bDataBits = 7; 911 break; 912 case CS8: 913 ls.bDataBits = 8; 914 break; 915 } 916 917 DPRINTF("rate=0x%08x fmt=%d parity=%d bits=%d\n", 918 UGETDW(ls.dwDTERate), ls.bCharFormat, 919 ls.bParityType, ls.bDataBits); 920 921 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 922 req.bRequest = UCDC_SET_LINE_CODING; 923 USETW(req.wValue, 0); 924 req.wIndex[0] = sc->sc_data_iface_no; 925 req.wIndex[1] = 0; 926 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 927 928 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 929 &req, &ls, 0, 1000); 930 931 if (t->c_cflag & CRTSCTS) { 932 DPRINTF("crtscts = on\n"); 933 934 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 935 if (sc->sc_chiptype == TYPE_PL2303HXN) { 936 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN; 937 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN); 938 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303HXN); 939 } else { 940 req.bRequest = UPLCOM_SET_REQUEST; 941 USETW(req.wValue, 0); 942 if (sc->sc_chiptype != TYPE_PL2303) 943 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303X); 944 else 945 USETW(req.wIndex, UPLCOM_SET_CRTSCTS); 946 } 947 USETW(req.wLength, 0); 948 949 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 950 &req, NULL, 0, 1000); 951 } else { 952 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 953 if (sc->sc_chiptype == TYPE_PL2303HXN) { 954 req.bRequest = UPLCOM_SET_REQUEST_PL2303HXN; 955 USETW(req.wValue, UPLCOM_CRTSCTS_REG_PL2303HXN); 956 USETW(req.wIndex, UPLCOM_CLEAR_CRTSCTS_PL2303HXN); 957 } 958 else { 959 req.bRequest = UPLCOM_SET_REQUEST; 960 USETW(req.wValue, 0); 961 USETW(req.wIndex, 0); 962 } 963 USETW(req.wLength, 0); 964 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 965 &req, NULL, 0, 1000); 966 } 967 } 968 969 static void 970 uplcom_start_read(struct ucom_softc *ucom) 971 { 972 struct uplcom_softc *sc = ucom->sc_parent; 973 974 /* start interrupt endpoint */ 975 usbd_transfer_start(sc->sc_xfer[UPLCOM_INTR_DT_RD]); 976 977 /* start read endpoint */ 978 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 979 } 980 981 static void 982 uplcom_stop_read(struct ucom_softc *ucom) 983 { 984 struct uplcom_softc *sc = ucom->sc_parent; 985 986 /* stop interrupt endpoint */ 987 usbd_transfer_stop(sc->sc_xfer[UPLCOM_INTR_DT_RD]); 988 989 /* stop read endpoint */ 990 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_RD]); 991 } 992 993 static void 994 uplcom_start_write(struct ucom_softc *ucom) 995 { 996 struct uplcom_softc *sc = ucom->sc_parent; 997 998 usbd_transfer_start(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 999 } 1000 1001 static void 1002 uplcom_stop_write(struct ucom_softc *ucom) 1003 { 1004 struct uplcom_softc *sc = ucom->sc_parent; 1005 1006 usbd_transfer_stop(sc->sc_xfer[UPLCOM_BULK_DT_WR]); 1007 } 1008 1009 static void 1010 uplcom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 1011 { 1012 struct uplcom_softc *sc = ucom->sc_parent; 1013 1014 DPRINTF("\n"); 1015 1016 *lsr = sc->sc_lsr; 1017 *msr = sc->sc_msr; 1018 } 1019 1020 static void 1021 uplcom_intr_callback(struct usb_xfer *xfer, usb_error_t error) 1022 { 1023 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1024 struct usb_page_cache *pc; 1025 uint8_t buf[9]; 1026 int actlen; 1027 1028 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1029 1030 switch (USB_GET_STATE(xfer)) { 1031 case USB_ST_TRANSFERRED: 1032 1033 DPRINTF("actlen = %u\n", actlen); 1034 1035 if (actlen >= 9) { 1036 pc = usbd_xfer_get_frame(xfer, 0); 1037 usbd_copy_out(pc, 0, buf, sizeof(buf)); 1038 1039 DPRINTF("status = 0x%02x\n", buf[UPLCOM_STATE_INDEX]); 1040 1041 sc->sc_lsr = 0; 1042 sc->sc_msr = 0; 1043 1044 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_CTS) { 1045 sc->sc_msr |= SER_CTS; 1046 } 1047 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_OVERRUN_ERROR) { 1048 sc->sc_lsr |= ULSR_OE; 1049 } 1050 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_PARITY_ERROR) { 1051 sc->sc_lsr |= ULSR_PE; 1052 } 1053 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_FRAME_ERROR) { 1054 sc->sc_lsr |= ULSR_FE; 1055 } 1056 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_RING) { 1057 sc->sc_msr |= SER_RI; 1058 } 1059 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_BREAK_ERROR) { 1060 sc->sc_lsr |= ULSR_BI; 1061 } 1062 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DSR) { 1063 sc->sc_msr |= SER_DSR; 1064 } 1065 if (buf[UPLCOM_STATE_INDEX] & RSAQ_STATUS_DCD) { 1066 sc->sc_msr |= SER_DCD; 1067 } 1068 ucom_status_change(&sc->sc_ucom); 1069 } 1070 case USB_ST_SETUP: 1071 tr_setup: 1072 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1073 usbd_transfer_submit(xfer); 1074 return; 1075 1076 default: /* Error */ 1077 if (error != USB_ERR_CANCELLED) { 1078 /* try to clear stall first */ 1079 usbd_xfer_set_stall(xfer); 1080 goto tr_setup; 1081 } 1082 return; 1083 } 1084 } 1085 1086 static void 1087 uplcom_write_callback(struct usb_xfer *xfer, usb_error_t error) 1088 { 1089 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1090 struct usb_page_cache *pc; 1091 uint32_t actlen; 1092 1093 switch (USB_GET_STATE(xfer)) { 1094 case USB_ST_SETUP: 1095 case USB_ST_TRANSFERRED: 1096 tr_setup: 1097 pc = usbd_xfer_get_frame(xfer, 0); 1098 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1099 UPLCOM_BULK_BUF_SIZE, &actlen)) { 1100 DPRINTF("actlen = %d\n", actlen); 1101 1102 usbd_xfer_set_frame_len(xfer, 0, actlen); 1103 usbd_transfer_submit(xfer); 1104 } 1105 return; 1106 1107 default: /* Error */ 1108 if (error != USB_ERR_CANCELLED) { 1109 /* try to clear stall first */ 1110 usbd_xfer_set_stall(xfer); 1111 goto tr_setup; 1112 } 1113 return; 1114 } 1115 } 1116 1117 static void 1118 uplcom_read_callback(struct usb_xfer *xfer, usb_error_t error) 1119 { 1120 struct uplcom_softc *sc = usbd_xfer_softc(xfer); 1121 struct usb_page_cache *pc; 1122 int actlen; 1123 1124 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1125 1126 switch (USB_GET_STATE(xfer)) { 1127 case USB_ST_TRANSFERRED: 1128 pc = usbd_xfer_get_frame(xfer, 0); 1129 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 1130 1131 case USB_ST_SETUP: 1132 tr_setup: 1133 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1134 usbd_transfer_submit(xfer); 1135 return; 1136 1137 default: /* Error */ 1138 if (error != USB_ERR_CANCELLED) { 1139 /* try to clear stall first */ 1140 usbd_xfer_set_stall(xfer); 1141 goto tr_setup; 1142 } 1143 return; 1144 } 1145 } 1146 1147 static void 1148 uplcom_poll(struct ucom_softc *ucom) 1149 { 1150 struct uplcom_softc *sc = ucom->sc_parent; 1151 usbd_transfer_poll(sc->sc_xfer, UPLCOM_N_TRANSFER); 1152 } 1153