sys/dev/usb/serial/uvscom.c

   1 /*      $NetBSD: usb/uvscom.c,v 1.1 2002/03/19 15:08:42 augustss Exp $  */
   2
   3 #include <sys/cdefs.h>
   4 __FBSDID("$FreeBSD$");
   5
   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 /*
  34  * uvscom: SUNTAC Slipper U VS-10U driver.
  35  * Slipper U is a PC Card to USB converter for data communication card
  36  * adapter.  It supports DDI Pocket's Air H" C@rd, C@rd H" 64, NTT's P-in,
  37  * P-in m@ater and various data communication card adapters.
  38  */
  39
  40 #include "usbdevs.h"
  41 #include <dev/usb/usb.h>
  42 #include <dev/usb/usb_mfunc.h>
  43 #include <dev/usb/usb_error.h>
  44 #include <dev/usb/usb_cdc.h>
  45
  46 #define USB_DEBUG_VAR uvscom_debug
  47
  48 #include <dev/usb/usb_core.h>
  49 #include <dev/usb/usb_debug.h>
  50 #include <dev/usb/usb_process.h>
  51 #include <dev/usb/usb_request.h>
  52 #include <dev/usb/usb_lookup.h>
  53 #include <dev/usb/usb_util.h>
  54 #include <dev/usb/usb_busdma.h>
  55
  56 #include <dev/usb/serial/usb_serial.h>
  57
  58 #if USB_DEBUG
  59 static int uvscom_debug = 0;
  60
  61 SYSCTL_NODE(_hw_usb2, OID_AUTO, uvscom, CTLFLAG_RW, 0, "USB uvscom");
  62 SYSCTL_INT(_hw_usb2_uvscom, OID_AUTO, debug, CTLFLAG_RW,
  63     &uvscom_debug, 0, "Debug level");
  64 #endif
  65
  66 #define UVSCOM_MODVER           1       /* module version */
  67
  68 #define UVSCOM_CONFIG_INDEX     0
  69 #define UVSCOM_IFACE_INDEX      0
  70
  71 /* Request */
  72 #define UVSCOM_SET_SPEED        0x10
  73 #define UVSCOM_LINE_CTL         0x11
  74 #define UVSCOM_SET_PARAM        0x12
  75 #define UVSCOM_READ_STATUS      0xd0
  76 #define UVSCOM_SHUTDOWN         0xe0
  77
  78 /* UVSCOM_SET_SPEED parameters */
  79 #define UVSCOM_SPEED_150BPS     0x00
  80 #define UVSCOM_SPEED_300BPS     0x01
  81 #define UVSCOM_SPEED_600BPS     0x02
  82 #define UVSCOM_SPEED_1200BPS    0x03
  83 #define UVSCOM_SPEED_2400BPS    0x04
  84 #define UVSCOM_SPEED_4800BPS    0x05
  85 #define UVSCOM_SPEED_9600BPS    0x06
  86 #define UVSCOM_SPEED_19200BPS   0x07
  87 #define UVSCOM_SPEED_38400BPS   0x08
  88 #define UVSCOM_SPEED_57600BPS   0x09
  89 #define UVSCOM_SPEED_115200BPS  0x0a
  90
  91 /* UVSCOM_LINE_CTL parameters */
  92 #define UVSCOM_BREAK            0x40
  93 #define UVSCOM_RTS              0x02
  94 #define UVSCOM_DTR              0x01
  95 #define UVSCOM_LINE_INIT        0x08
  96
  97 /* UVSCOM_SET_PARAM parameters */
  98 #define UVSCOM_DATA_MASK        0x03
  99 #define UVSCOM_DATA_BIT_8       0x03
 100 #define UVSCOM_DATA_BIT_7       0x02
 101 #define UVSCOM_DATA_BIT_6       0x01
 102 #define UVSCOM_DATA_BIT_5       0x00
 103
 104 #define UVSCOM_STOP_MASK        0x04
 105 #define UVSCOM_STOP_BIT_2       0x04
 106 #define UVSCOM_STOP_BIT_1       0x00
 107
 108 #define UVSCOM_PARITY_MASK      0x18
 109 #define UVSCOM_PARITY_EVEN      0x18
 110 #define UVSCOM_PARITY_ODD       0x08
 111 #define UVSCOM_PARITY_NONE      0x00
 112
 113 /* Status bits */
 114 #define UVSCOM_TXRDY            0x04
 115 #define UVSCOM_RXRDY            0x01
 116
 117 #define UVSCOM_DCD              0x08
 118 #define UVSCOM_NOCARD           0x04
 119 #define UVSCOM_DSR              0x02
 120 #define UVSCOM_CTS              0x01
 121 #define UVSCOM_USTAT_MASK       (UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
 122
 123 #define UVSCOM_BULK_BUF_SIZE    1024    /* bytes */
 124
 125 enum {
 126         UVSCOM_BULK_DT_WR,
 127         UVSCOM_BULK_DT_RD,
 128         UVSCOM_INTR_DT_RD,
 129         UVSCOM_N_TRANSFER,
 130 };
 131
 132 struct uvscom_softc {
 133         struct usb2_com_super_softc sc_super_ucom;
 134         struct usb2_com_softc sc_ucom;
 135
 136         struct usb2_xfer *sc_xfer[UVSCOM_N_TRANSFER];
 137         struct usb2_device *sc_udev;
 138         struct mtx sc_mtx;
 139
 140         uint16_t sc_line;               /* line control register */
 141
 142         uint8_t sc_iface_no;            /* interface number */
 143         uint8_t sc_iface_index;         /* interface index */
 144         uint8_t sc_lsr;                 /* local status register */
 145         uint8_t sc_msr;                 /* uvscom status register */
 146         uint8_t sc_unit_status;         /* unit status */
 147 };
 148
 149 /* prototypes */
 150
 151 static device_probe_t uvscom_probe;
 152 static device_attach_t uvscom_attach;
 153 static device_detach_t uvscom_detach;
 154
 155 static usb2_callback_t uvscom_write_callback;
 156 static usb2_callback_t uvscom_read_callback;
 157 static usb2_callback_t uvscom_intr_callback;
 158
 159 static void     uvscom_cfg_set_dtr(struct usb2_com_softc *, uint8_t);
 160 static void     uvscom_cfg_set_rts(struct usb2_com_softc *, uint8_t);
 161 static void     uvscom_cfg_set_break(struct usb2_com_softc *, uint8_t);
 162 static int      uvscom_pre_param(struct usb2_com_softc *, struct termios *);
 163 static void     uvscom_cfg_param(struct usb2_com_softc *, struct termios *);
 164 static int      uvscom_pre_open(struct usb2_com_softc *);
 165 static void     uvscom_cfg_open(struct usb2_com_softc *);
 166 static void     uvscom_cfg_close(struct usb2_com_softc *);
 167 static void     uvscom_start_read(struct usb2_com_softc *);
 168 static void     uvscom_stop_read(struct usb2_com_softc *);
 169 static void     uvscom_start_write(struct usb2_com_softc *);
 170 static void     uvscom_stop_write(struct usb2_com_softc *);
 171 static void     uvscom_cfg_get_status(struct usb2_com_softc *, uint8_t *,
 172                     uint8_t *);
 173 static void     uvscom_cfg_write(struct uvscom_softc *, uint8_t, uint16_t);
 174 static uint16_t uvscom_cfg_read_status(struct uvscom_softc *);
 175
 176 static const struct usb2_config uvscom_config[UVSCOM_N_TRANSFER] = {
 177
 178         [UVSCOM_BULK_DT_WR] = {
 179                 .type = UE_BULK,
 180                 .endpoint = UE_ADDR_ANY,
 181                 .direction = UE_DIR_OUT,
 182                 .mh.bufsize = UVSCOM_BULK_BUF_SIZE,
 183                 .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 184                 .mh.callback = &uvscom_write_callback,
 185         },
 186
 187         [UVSCOM_BULK_DT_RD] = {
 188                 .type = UE_BULK,
 189                 .endpoint = UE_ADDR_ANY,
 190                 .direction = UE_DIR_IN,
 191                 .mh.bufsize = UVSCOM_BULK_BUF_SIZE,
 192                 .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 193                 .mh.callback = &uvscom_read_callback,
 194         },
 195
 196         [UVSCOM_INTR_DT_RD] = {
 197                 .type = UE_INTERRUPT,
 198                 .endpoint = UE_ADDR_ANY,
 199                 .direction = UE_DIR_IN,
 200                 .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 201                 .mh.bufsize = 0,        /* use wMaxPacketSize */
 202                 .mh.callback = &uvscom_intr_callback,
 203         },
 204 };
 205
 206 static const struct usb2_com_callback uvscom_callback = {
 207         .usb2_com_cfg_get_status = &uvscom_cfg_get_status,
 208         .usb2_com_cfg_set_dtr = &uvscom_cfg_set_dtr,
 209         .usb2_com_cfg_set_rts = &uvscom_cfg_set_rts,
 210         .usb2_com_cfg_set_break = &uvscom_cfg_set_break,
 211         .usb2_com_cfg_param = &uvscom_cfg_param,
 212         .usb2_com_cfg_open = &uvscom_cfg_open,
 213         .usb2_com_cfg_close = &uvscom_cfg_close,
 214         .usb2_com_pre_open = &uvscom_pre_open,
 215         .usb2_com_pre_param = &uvscom_pre_param,
 216         .usb2_com_start_read = &uvscom_start_read,
 217         .usb2_com_stop_read = &uvscom_stop_read,
 218         .usb2_com_start_write = &uvscom_start_write,
 219         .usb2_com_stop_write = &uvscom_stop_write,
 220 };
 221
 222 static const struct usb2_device_id uvscom_devs[] = {
 223         /* SUNTAC U-Cable type A4 */
 224         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4, 0)},
 225         /* SUNTAC U-Cable type D2 */
 226         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L, 0)},
 227         /* SUNTAC Ir-Trinity */
 228         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U, 0)},
 229         /* SUNTAC U-Cable type P1 */
 230         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1, 0)},
 231         /* SUNTAC Slipper U */
 232         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U, 0)},
 233 };
 234
 235 static device_method_t uvscom_methods[] = {
 236         DEVMETHOD(device_probe, uvscom_probe),
 237         DEVMETHOD(device_attach, uvscom_attach),
 238         DEVMETHOD(device_detach, uvscom_detach),
 239         {0, 0}
 240 };
 241
 242 static devclass_t uvscom_devclass;
 243
 244 static driver_t uvscom_driver = {
 245         .name = "uvscom",
 246         .methods = uvscom_methods,
 247         .size = sizeof(struct uvscom_softc),
 248 };
 249
 250 DRIVER_MODULE(uvscom, uhub, uvscom_driver, uvscom_devclass, NULL, 0);
 251 MODULE_DEPEND(uvscom, ucom, 1, 1, 1);
 252 MODULE_DEPEND(uvscom, usb, 1, 1, 1);
 253 MODULE_VERSION(uvscom, UVSCOM_MODVER);
 254
 255 static int
 256 uvscom_probe(device_t dev)
 257 {
 258         struct usb2_attach_arg *uaa = device_get_ivars(dev);
 259
 260         if (uaa->usb2_mode != USB_MODE_HOST) {
 261                 return (ENXIO);
 262         }
 263         if (uaa->info.bConfigIndex != UVSCOM_CONFIG_INDEX) {
 264                 return (ENXIO);
 265         }
 266         if (uaa->info.bIfaceIndex != UVSCOM_IFACE_INDEX) {
 267                 return (ENXIO);
 268         }
 269         return (usb2_lookup_id_by_uaa(uvscom_devs, sizeof(uvscom_devs), uaa));
 270 }
 271
 272 static int
 273 uvscom_attach(device_t dev)
 274 {
 275         struct usb2_attach_arg *uaa = device_get_ivars(dev);
 276         struct uvscom_softc *sc = device_get_softc(dev);
 277         int error;
 278
 279         device_set_usb2_desc(dev);
 280         mtx_init(&sc->sc_mtx, "uvscom", NULL, MTX_DEF);
 281
 282         sc->sc_udev = uaa->device;
 283
 284         DPRINTF("sc=%p\n", sc);
 285
 286         sc->sc_iface_no = uaa->info.bIfaceNum;
 287         sc->sc_iface_index = UVSCOM_IFACE_INDEX;
 288
 289         error = usb2_transfer_setup(uaa->device, &sc->sc_iface_index,
 290             sc->sc_xfer, uvscom_config, UVSCOM_N_TRANSFER, sc, &sc->sc_mtx);
 291
 292         if (error) {
 293                 DPRINTF("could not allocate all USB transfers!\n");
 294                 goto detach;
 295         }
 296         sc->sc_line = UVSCOM_LINE_INIT;
 297
 298         /* clear stall at first run */
 299         mtx_lock(&sc->sc_mtx);
 300         usb2_transfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
 301         usb2_transfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
 302         mtx_unlock(&sc->sc_mtx);
 303
 304         error = usb2_com_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 305             &uvscom_callback, &sc->sc_mtx);
 306         if (error) {
 307                 goto detach;
 308         }
 309         /* start interrupt pipe */
 310         mtx_lock(&sc->sc_mtx);
 311         usb2_transfer_start(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
 312         mtx_unlock(&sc->sc_mtx);
 313
 314         return (0);
 315
 316 detach:
 317         uvscom_detach(dev);
 318         return (ENXIO);
 319 }
 320
 321 static int
 322 uvscom_detach(device_t dev)
 323 {
 324         struct uvscom_softc *sc = device_get_softc(dev);
 325
 326         DPRINTF("sc=%p\n", sc);
 327
 328         /* stop interrupt pipe */
 329
 330         if (sc->sc_xfer[UVSCOM_INTR_DT_RD])
 331                 usb2_transfer_stop(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
 332
 333         usb2_com_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1);
 334         usb2_transfer_unsetup(sc->sc_xfer, UVSCOM_N_TRANSFER);
 335         mtx_destroy(&sc->sc_mtx);
 336
 337         return (0);
 338 }
 339
 340 static void
 341 uvscom_write_callback(struct usb2_xfer *xfer)
 342 {
 343         struct uvscom_softc *sc = xfer->priv_sc;
 344         uint32_t actlen;
 345
 346         switch (USB_GET_STATE(xfer)) {
 347         case USB_ST_SETUP:
 348         case USB_ST_TRANSFERRED:
 349 tr_setup:
 350                 if (usb2_com_get_data(&sc->sc_ucom, xfer->frbuffers, 0,
 351                     UVSCOM_BULK_BUF_SIZE, &actlen)) {
 352
 353                         xfer->frlengths[0] = actlen;
 354                         usb2_start_hardware(xfer);
 355                 }
 356                 return;
 357
 358         default:                        /* Error */
 359                 if (xfer->error != USB_ERR_CANCELLED) {
 360                         /* try to clear stall first */
 361                         xfer->flags.stall_pipe = 1;
 362                         goto tr_setup;
 363                 }
 364                 return;
 365         }
 366 }
 367
 368 static void
 369 uvscom_read_callback(struct usb2_xfer *xfer)
 370 {
 371         struct uvscom_softc *sc = xfer->priv_sc;
 372
 373         switch (USB_GET_STATE(xfer)) {
 374         case USB_ST_TRANSFERRED:
 375                 usb2_com_put_data(&sc->sc_ucom, xfer->frbuffers, 0, xfer->actlen);
 376
 377         case USB_ST_SETUP:
 378 tr_setup:
 379                 xfer->frlengths[0] = xfer->max_data_length;
 380                 usb2_start_hardware(xfer);
 381                 return;
 382
 383         default:                        /* Error */
 384                 if (xfer->error != USB_ERR_CANCELLED) {
 385                         /* try to clear stall first */
 386                         xfer->flags.stall_pipe = 1;
 387                         goto tr_setup;
 388                 }
 389                 return;
 390         }
 391 }
 392
 393 static void
 394 uvscom_intr_callback(struct usb2_xfer *xfer)
 395 {
 396         struct uvscom_softc *sc = xfer->priv_sc;
 397         uint8_t buf[2];
 398
 399         switch (USB_GET_STATE(xfer)) {
 400         case USB_ST_TRANSFERRED:
 401                 if (xfer->actlen >= 2) {
 402
 403                         usb2_copy_out(xfer->frbuffers, 0, buf, sizeof(buf));
 404
 405                         sc->sc_lsr = 0;
 406                         sc->sc_msr = 0;
 407                         sc->sc_unit_status = buf[1];
 408
 409                         if (buf[0] & UVSCOM_TXRDY) {
 410                                 sc->sc_lsr |= ULSR_TXRDY;
 411                         }
 412                         if (buf[0] & UVSCOM_RXRDY) {
 413                                 sc->sc_lsr |= ULSR_RXRDY;
 414                         }
 415                         if (buf[1] & UVSCOM_CTS) {
 416                                 sc->sc_msr |= SER_CTS;
 417                         }
 418                         if (buf[1] & UVSCOM_DSR) {
 419                                 sc->sc_msr |= SER_DSR;
 420                         }
 421                         if (buf[1] & UVSCOM_DCD) {
 422                                 sc->sc_msr |= SER_DCD;
 423                         }
 424                         /*
 425                          * the UCOM layer will ignore this call if the TTY
 426                          * device is closed!
 427                          */
 428                         usb2_com_status_change(&sc->sc_ucom);
 429                 }
 430         case USB_ST_SETUP:
 431 tr_setup:
 432                 xfer->frlengths[0] = xfer->max_data_length;
 433                 usb2_start_hardware(xfer);
 434                 return;
 435
 436         default:                        /* Error */
 437                 if (xfer->error != USB_ERR_CANCELLED) {
 438                         /* try to clear stall first */
 439                         xfer->flags.stall_pipe = 1;
 440                         goto tr_setup;
 441                 }
 442                 return;
 443         }
 444 }
 445
 446 static void
 447 uvscom_cfg_set_dtr(struct usb2_com_softc *ucom, uint8_t onoff)
 448 {
 449         struct uvscom_softc *sc = ucom->sc_parent;
 450
 451         DPRINTF("onoff = %d\n", onoff);
 452
 453         if (onoff)
 454                 sc->sc_line |= UVSCOM_DTR;
 455         else
 456                 sc->sc_line &= ~UVSCOM_DTR;
 457
 458         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
 459 }
 460
 461 static void
 462 uvscom_cfg_set_rts(struct usb2_com_softc *ucom, uint8_t onoff)
 463 {
 464         struct uvscom_softc *sc = ucom->sc_parent;
 465
 466         DPRINTF("onoff = %d\n", onoff);
 467
 468         if (onoff)
 469                 sc->sc_line |= UVSCOM_RTS;
 470         else
 471                 sc->sc_line &= ~UVSCOM_RTS;
 472
 473         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
 474 }
 475
 476 static void
 477 uvscom_cfg_set_break(struct usb2_com_softc *ucom, uint8_t onoff)
 478 {
 479         struct uvscom_softc *sc = ucom->sc_parent;
 480
 481         DPRINTF("onoff = %d\n", onoff);
 482
 483         if (onoff)
 484                 sc->sc_line |= UVSCOM_BREAK;
 485         else
 486                 sc->sc_line &= ~UVSCOM_BREAK;
 487
 488         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
 489 }
 490
 491 static int
 492 uvscom_pre_param(struct usb2_com_softc *ucom, struct termios *t)
 493 {
 494         switch (t->c_ospeed) {
 495                 case B150:
 496                 case B300:
 497                 case B600:
 498                 case B1200:
 499                 case B2400:
 500                 case B4800:
 501                 case B9600:
 502                 case B19200:
 503                 case B38400:
 504                 case B57600:
 505                 case B115200:
 506                 default:
 507                 return (EINVAL);
 508         }
 509         return (0);
 510 }
 511
 512 static void
 513 uvscom_cfg_param(struct usb2_com_softc *ucom, struct termios *t)
 514 {
 515         struct uvscom_softc *sc = ucom->sc_parent;
 516         uint16_t value;
 517
 518         DPRINTF("\n");
 519
 520         switch (t->c_ospeed) {
 521         case B150:
 522                 value = UVSCOM_SPEED_150BPS;
 523                 break;
 524         case B300:
 525                 value = UVSCOM_SPEED_300BPS;
 526                 break;
 527         case B600:
 528                 value = UVSCOM_SPEED_600BPS;
 529                 break;
 530         case B1200:
 531                 value = UVSCOM_SPEED_1200BPS;
 532                 break;
 533         case B2400:
 534                 value = UVSCOM_SPEED_2400BPS;
 535                 break;
 536         case B4800:
 537                 value = UVSCOM_SPEED_4800BPS;
 538                 break;
 539         case B9600:
 540                 value = UVSCOM_SPEED_9600BPS;
 541                 break;
 542         case B19200:
 543                 value = UVSCOM_SPEED_19200BPS;
 544                 break;
 545         case B38400:
 546                 value = UVSCOM_SPEED_38400BPS;
 547                 break;
 548         case B57600:
 549                 value = UVSCOM_SPEED_57600BPS;
 550                 break;
 551         case B115200:
 552                 value = UVSCOM_SPEED_115200BPS;
 553                 break;
 554         default:
 555                 return;
 556         }
 557
 558         uvscom_cfg_write(sc, UVSCOM_SET_SPEED, value);
 559
 560         value = 0;
 561
 562         if (t->c_cflag & CSTOPB) {
 563                 value |= UVSCOM_STOP_BIT_2;
 564         }
 565         if (t->c_cflag & PARENB) {
 566                 if (t->c_cflag & PARODD) {
 567                         value |= UVSCOM_PARITY_ODD;
 568                 } else {
 569                         value |= UVSCOM_PARITY_EVEN;
 570                 }
 571         } else {
 572                 value |= UVSCOM_PARITY_NONE;
 573         }
 574
 575         switch (t->c_cflag & CSIZE) {
 576         case CS5:
 577                 value |= UVSCOM_DATA_BIT_5;
 578                 break;
 579         case CS6:
 580                 value |= UVSCOM_DATA_BIT_6;
 581                 break;
 582         case CS7:
 583                 value |= UVSCOM_DATA_BIT_7;
 584                 break;
 585         default:
 586         case CS8:
 587                 value |= UVSCOM_DATA_BIT_8;
 588                 break;
 589         }
 590
 591         uvscom_cfg_write(sc, UVSCOM_SET_PARAM, value);
 592 }
 593
 594 static int
 595 uvscom_pre_open(struct usb2_com_softc *ucom)
 596 {
 597         struct uvscom_softc *sc = ucom->sc_parent;
 598
 599         DPRINTF("sc = %p\n", sc);
 600
 601         /* check if PC card was inserted */
 602
 603         if (sc->sc_unit_status & UVSCOM_NOCARD) {
 604                 DPRINTF("no PC card!\n");
 605                 return (ENXIO);
 606         }
 607         return (0);
 608 }
 609
 610 static void
 611 uvscom_cfg_open(struct usb2_com_softc *ucom)
 612 {
 613         struct uvscom_softc *sc = ucom->sc_parent;
 614
 615         DPRINTF("sc = %p\n", sc);
 616
 617         uvscom_cfg_read_status(sc);
 618 }
 619
 620 static void
 621 uvscom_cfg_close(struct usb2_com_softc *ucom)
 622 {
 623         struct uvscom_softc *sc = ucom->sc_parent;
 624
 625         DPRINTF("sc=%p\n", sc);
 626
 627         uvscom_cfg_write(sc, UVSCOM_SHUTDOWN, 0);
 628 }
 629
 630 static void
 631 uvscom_start_read(struct usb2_com_softc *ucom)
 632 {
 633         struct uvscom_softc *sc = ucom->sc_parent;
 634
 635         usb2_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
 636 }
 637
 638 static void
 639 uvscom_stop_read(struct usb2_com_softc *ucom)
 640 {
 641         struct uvscom_softc *sc = ucom->sc_parent;
 642
 643         usb2_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
 644 }
 645
 646 static void
 647 uvscom_start_write(struct usb2_com_softc *ucom)
 648 {
 649         struct uvscom_softc *sc = ucom->sc_parent;
 650
 651         usb2_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
 652 }
 653
 654 static void
 655 uvscom_stop_write(struct usb2_com_softc *ucom)
 656 {
 657         struct uvscom_softc *sc = ucom->sc_parent;
 658
 659         usb2_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
 660 }
 661
 662 static void
 663 uvscom_cfg_get_status(struct usb2_com_softc *ucom, uint8_t *lsr, uint8_t *msr)
 664 {
 665         struct uvscom_softc *sc = ucom->sc_parent;
 666
 667         *lsr = sc->sc_lsr;
 668         *msr = sc->sc_msr;
 669 }
 670
 671 static void
 672 uvscom_cfg_write(struct uvscom_softc *sc, uint8_t index, uint16_t value)
 673 {
 674         struct usb2_device_request req;
 675         usb2_error_t err;
 676
 677         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 678         req.bRequest = index;
 679         USETW(req.wValue, value);
 680         USETW(req.wIndex, 0);
 681         USETW(req.wLength, 0);
 682
 683         err = usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 684             &req, NULL, 0, 1000);
 685         if (err) {
 686                 DPRINTFN(0, "device request failed, err=%s "
 687                     "(ignored)\n", usb2_errstr(err));
 688         }
 689 }
 690
 691 static uint16_t
 692 uvscom_cfg_read_status(struct uvscom_softc *sc)
 693 {
 694         struct usb2_device_request req;
 695         usb2_error_t err;
 696         uint8_t data[2];
 697
 698         req.bmRequestType = UT_READ_VENDOR_DEVICE;
 699         req.bRequest = UVSCOM_READ_STATUS;
 700         USETW(req.wValue, 0);
 701         USETW(req.wIndex, 0);
 702         USETW(req.wLength, 2);
 703
 704         err = usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 705             &req, data, 0, 1000);
 706         if (err) {
 707                 DPRINTFN(0, "device request failed, err=%s "
 708                     "(ignored)\n", usb2_errstr(err));
 709         }
 710         return (data[0] | (data[1] << 8));
 711 }