sys/dev/usb/serial/ufoma.c

   1 /*      $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $       */
   2
   3 #include <sys/cdefs.h>
   4 __FBSDID("$FreeBSD$");
   5 #define UFOMA_HANDSFREE
   6 /*-
   7  * Copyright (c) 2005, Takanori Watanabe
   8  * Copyright (c) 2003, M. Warner Losh <imp@FreeBSD.org>.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*-
  34  * Copyright (c) 1998 The NetBSD Foundation, Inc.
  35  * All rights reserved.
  36  *
  37  * This code is derived from software contributed to The NetBSD Foundation
  38  * by Lennart Augustsson (lennart@augustsson.net) at
  39  * Carlstedt Research & Technology.
  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  * 3. All advertising materials mentioning features or use of this software
  50  *    must display the following acknowledgement:
  51  *        This product includes software developed by the NetBSD
  52  *        Foundation, Inc. and its contributors.
  53  * 4. Neither the name of The NetBSD Foundation nor the names of its
  54  *    contributors may be used to endorse or promote products derived
  55  *    from this software without specific prior written permission.
  56  *
  57  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  58  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  59  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  60  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  61  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  62  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  63  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  64  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  65  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  66  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  67  * POSSIBILITY OF SUCH DAMAGE.
  68  */
  69
  70 /*
  71  * Comm Class spec:  http://www.usb.org/developers/devclass_docs/usbccs10.pdf
  72  *                   http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
  73  */
  74
  75 /*
  76  * TODO:
  77  * - Implement a Call Device for modems without multiplexed commands.
  78  */
  79
  80 /*
  81  * NOTE: all function names beginning like "ufoma_cfg_" can only
  82  * be called from within the config thread function !
  83  */
  84
  85 #include <sys/stdint.h>
  86 #include <sys/stddef.h>
  87 #include <sys/param.h>
  88 #include <sys/queue.h>
  89 #include <sys/types.h>
  90 #include <sys/systm.h>
  91 #include <sys/kernel.h>
  92 #include <sys/bus.h>
  93 #include <sys/linker_set.h>
  94 #include <sys/module.h>
  95 #include <sys/lock.h>
  96 #include <sys/mutex.h>
  97 #include <sys/condvar.h>
  98 #include <sys/sysctl.h>
  99 #include <sys/sx.h>
 100 #include <sys/unistd.h>
 101 #include <sys/callout.h>
 102 #include <sys/malloc.h>
 103 #include <sys/priv.h>
 104 #include <sys/sbuf.h>
 105
 106 #include <dev/usb/usb.h>
 107 #include <dev/usb/usbdi.h>
 108 #include <dev/usb/usbdi_util.h>
 109 #include <dev/usb/usb_cdc.h>
 110 #include "usbdevs.h"
 111
 112 #define USB_DEBUG_VAR usb_debug
 113 #include <dev/usb/usb_debug.h>
 114 #include <dev/usb/usb_process.h>
 115
 116 #include <dev/usb/serial/usb_serial.h>
 117
 118 typedef struct ufoma_mobile_acm_descriptor {
 119         uint8_t bFunctionLength;
 120         uint8_t bDescriptorType;
 121         uint8_t bDescriptorSubtype;
 122         uint8_t bType;
 123         uint8_t bMode[1];
 124 } __packed usb_mcpc_acm_descriptor;
 125
 126 #define UISUBCLASS_MCPC 0x88
 127
 128 #define UDESC_VS_INTERFACE 0x44
 129 #define UDESCSUB_MCPC_ACM  0x11
 130
 131 #define UMCPC_ACM_TYPE_AB1 0x1
 132 #define UMCPC_ACM_TYPE_AB2 0x2
 133 #define UMCPC_ACM_TYPE_AB5 0x5
 134 #define UMCPC_ACM_TYPE_AB6 0x6
 135
 136 #define UMCPC_ACM_MODE_DEACTIVATED 0x0
 137 #define UMCPC_ACM_MODE_MODEM 0x1
 138 #define UMCPC_ACM_MODE_ATCOMMAND 0x2
 139 #define UMCPC_ACM_MODE_OBEX 0x60
 140 #define UMCPC_ACM_MODE_VENDOR1 0xc0
 141 #define UMCPC_ACM_MODE_VENDOR2 0xfe
 142 #define UMCPC_ACM_MODE_UNLINKED 0xff
 143
 144 #define UMCPC_CM_MOBILE_ACM 0x0
 145
 146 #define UMCPC_ACTIVATE_MODE 0x60
 147 #define UMCPC_GET_MODETABLE 0x61
 148 #define UMCPC_SET_LINK 0x62
 149 #define UMCPC_CLEAR_LINK 0x63
 150
 151 #define UMCPC_REQUEST_ACKNOWLEDGE 0x31
 152
 153 #define UFOMA_MAX_TIMEOUT 15            /* standard says 10 seconds */
 154 #define UFOMA_CMD_BUF_SIZE 64           /* bytes */
 155
 156 #define UFOMA_BULK_BUF_SIZE 1024        /* bytes */
 157
 158 enum {
 159         UFOMA_CTRL_ENDPT_INTR,
 160         UFOMA_CTRL_ENDPT_READ,
 161         UFOMA_CTRL_ENDPT_WRITE,
 162         UFOMA_CTRL_ENDPT_MAX,
 163 };
 164
 165 enum {
 166         UFOMA_BULK_ENDPT_WRITE,
 167         UFOMA_BULK_ENDPT_READ,
 168         UFOMA_BULK_ENDPT_MAX,
 169 };
 170
 171 struct ufoma_softc {
 172         struct ucom_super_softc sc_super_ucom;
 173         struct ucom_softc sc_ucom;
 174         struct cv sc_cv;
 175         struct mtx sc_mtx;
 176
 177         struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
 178         struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
 179         uint8_t *sc_modetable;
 180         device_t sc_dev;
 181         struct usb_device *sc_udev;
 182
 183         uint32_t sc_unit;
 184
 185         uint16_t sc_line;
 186
 187         uint8_t sc_num_msg;
 188         uint8_t sc_nobulk;
 189         uint8_t sc_ctrl_iface_no;
 190         uint8_t sc_ctrl_iface_index;
 191         uint8_t sc_data_iface_no;
 192         uint8_t sc_data_iface_index;
 193         uint8_t sc_cm_cap;
 194         uint8_t sc_acm_cap;
 195         uint8_t sc_lsr;
 196         uint8_t sc_msr;
 197         uint8_t sc_modetoactivate;
 198         uint8_t sc_currentmode;
 199         uint8_t sc_name[16];
 200 };
 201
 202 /* prototypes */
 203
 204 static device_probe_t ufoma_probe;
 205 static device_attach_t ufoma_attach;
 206 static device_detach_t ufoma_detach;
 207
 208 static usb_callback_t ufoma_ctrl_read_callback;
 209 static usb_callback_t ufoma_ctrl_write_callback;
 210 static usb_callback_t ufoma_intr_callback;
 211 static usb_callback_t ufoma_bulk_write_callback;
 212 static usb_callback_t ufoma_bulk_read_callback;
 213
 214 static void     *ufoma_get_intconf(struct usb_config_descriptor *,
 215                     struct usb_interface_descriptor *, uint8_t, uint8_t);
 216 static void     ufoma_cfg_link_state(struct ufoma_softc *);
 217 static void     ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
 218 static void     ufoma_cfg_open(struct ucom_softc *);
 219 static void     ufoma_cfg_close(struct ucom_softc *);
 220 static void     ufoma_cfg_set_break(struct ucom_softc *, uint8_t);
 221 static void     ufoma_cfg_get_status(struct ucom_softc *, uint8_t *,
 222                     uint8_t *);
 223 static void     ufoma_cfg_set_dtr(struct ucom_softc *, uint8_t);
 224 static void     ufoma_cfg_set_rts(struct ucom_softc *, uint8_t);
 225 static int      ufoma_pre_param(struct ucom_softc *, struct termios *);
 226 static void     ufoma_cfg_param(struct ucom_softc *, struct termios *);
 227 static int      ufoma_modem_setup(device_t, struct ufoma_softc *,
 228                     struct usb_attach_arg *);
 229 static void     ufoma_start_read(struct ucom_softc *);
 230 static void     ufoma_stop_read(struct ucom_softc *);
 231 static void     ufoma_start_write(struct ucom_softc *);
 232 static void     ufoma_stop_write(struct ucom_softc *);
 233 static void     ufoma_poll(struct ucom_softc *ucom);
 234
 235 /*sysctl stuff*/
 236 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS);
 237 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS);
 238 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS);
 239
 240 static const struct usb_config
 241         ufoma_ctrl_config[UFOMA_CTRL_ENDPT_MAX] = {
 242
 243         [UFOMA_CTRL_ENDPT_INTR] = {
 244                 .type = UE_INTERRUPT,
 245                 .endpoint = UE_ADDR_ANY,
 246                 .direction = UE_DIR_IN,
 247                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 248                 .bufsize = sizeof(struct usb_cdc_notification),
 249                 .callback = &ufoma_intr_callback,
 250         },
 251
 252         [UFOMA_CTRL_ENDPT_READ] = {
 253                 .type = UE_CONTROL,
 254                 .endpoint = 0x00,       /* Control pipe */
 255                 .direction = UE_DIR_ANY,
 256                 .bufsize = (sizeof(struct usb_device_request) + UFOMA_CMD_BUF_SIZE),
 257                 .flags = {.short_xfer_ok = 1,},
 258                 .callback = &ufoma_ctrl_read_callback,
 259                 .timeout = 1000,        /* 1 second */
 260         },
 261
 262         [UFOMA_CTRL_ENDPT_WRITE] = {
 263                 .type = UE_CONTROL,
 264                 .endpoint = 0x00,       /* Control pipe */
 265                 .direction = UE_DIR_ANY,
 266                 .bufsize = (sizeof(struct usb_device_request) + 1),
 267                 .callback = &ufoma_ctrl_write_callback,
 268                 .timeout = 1000,        /* 1 second */
 269         },
 270 };
 271
 272 static const struct usb_config
 273         ufoma_bulk_config[UFOMA_BULK_ENDPT_MAX] = {
 274
 275         [UFOMA_BULK_ENDPT_WRITE] = {
 276                 .type = UE_BULK,
 277                 .endpoint = UE_ADDR_ANY,
 278                 .direction = UE_DIR_OUT,
 279                 .bufsize = UFOMA_BULK_BUF_SIZE,
 280                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 281                 .callback = &ufoma_bulk_write_callback,
 282         },
 283
 284         [UFOMA_BULK_ENDPT_READ] = {
 285                 .type = UE_BULK,
 286                 .endpoint = UE_ADDR_ANY,
 287                 .direction = UE_DIR_IN,
 288                 .bufsize = UFOMA_BULK_BUF_SIZE,
 289                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 290                 .callback = &ufoma_bulk_read_callback,
 291         },
 292 };
 293
 294 static const struct ucom_callback ufoma_callback = {
 295         .ucom_cfg_get_status = &ufoma_cfg_get_status,
 296         .ucom_cfg_set_dtr = &ufoma_cfg_set_dtr,
 297         .ucom_cfg_set_rts = &ufoma_cfg_set_rts,
 298         .ucom_cfg_set_break = &ufoma_cfg_set_break,
 299         .ucom_cfg_param = &ufoma_cfg_param,
 300         .ucom_cfg_open = &ufoma_cfg_open,
 301         .ucom_cfg_close = &ufoma_cfg_close,
 302         .ucom_pre_param = &ufoma_pre_param,
 303         .ucom_start_read = &ufoma_start_read,
 304         .ucom_stop_read = &ufoma_stop_read,
 305         .ucom_start_write = &ufoma_start_write,
 306         .ucom_stop_write = &ufoma_stop_write,
 307         .ucom_poll = &ufoma_poll,
 308 };
 309
 310 static device_method_t ufoma_methods[] = {
 311         /* Device methods */
 312         DEVMETHOD(device_probe, ufoma_probe),
 313         DEVMETHOD(device_attach, ufoma_attach),
 314         DEVMETHOD(device_detach, ufoma_detach),
 315         {0, 0}
 316 };
 317
 318 static devclass_t ufoma_devclass;
 319
 320 static driver_t ufoma_driver = {
 321         .name = "ufoma",
 322         .methods = ufoma_methods,
 323         .size = sizeof(struct ufoma_softc),
 324 };
 325
 326 DRIVER_MODULE(ufoma, uhub, ufoma_driver, ufoma_devclass, NULL, 0);
 327 MODULE_DEPEND(ufoma, ucom, 1, 1, 1);
 328 MODULE_DEPEND(ufoma, usb, 1, 1, 1);
 329
 330 static int
 331 ufoma_probe(device_t dev)
 332 {
 333         struct usb_attach_arg *uaa = device_get_ivars(dev);
 334         struct usb_interface_descriptor *id;
 335         struct usb_config_descriptor *cd;
 336         usb_mcpc_acm_descriptor *mad;
 337
 338         if (uaa->usb_mode != USB_MODE_HOST) {
 339                 return (ENXIO);
 340         }
 341         id = usbd_get_interface_descriptor(uaa->iface);
 342         cd = usbd_get_config_descriptor(uaa->device);
 343
 344         if ((id == NULL) ||
 345             (cd == NULL) ||
 346             (id->bInterfaceClass != UICLASS_CDC) ||
 347             (id->bInterfaceSubClass != UISUBCLASS_MCPC)) {
 348                 return (ENXIO);
 349         }
 350         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 351         if (mad == NULL) {
 352                 return (ENXIO);
 353         }
 354 #ifndef UFOMA_HANDSFREE
 355         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 356             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 357                 return (ENXIO);
 358         }
 359 #endif
 360         return (0);
 361 }
 362
 363 static int
 364 ufoma_attach(device_t dev)
 365 {
 366         struct usb_attach_arg *uaa = device_get_ivars(dev);
 367         struct ufoma_softc *sc = device_get_softc(dev);
 368         struct usb_config_descriptor *cd;
 369         struct usb_interface_descriptor *id;
 370         struct sysctl_ctx_list *sctx;
 371         struct sysctl_oid *soid;
 372
 373         usb_mcpc_acm_descriptor *mad;
 374         uint8_t elements;
 375         int32_t error;
 376
 377         sc->sc_udev = uaa->device;
 378         sc->sc_dev = dev;
 379         sc->sc_unit = device_get_unit(dev);
 380
 381         mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
 382         cv_init(&sc->sc_cv, "CWAIT");
 383
 384         device_set_usb_desc(dev);
 385
 386         snprintf(sc->sc_name, sizeof(sc->sc_name),
 387             "%s", device_get_nameunit(dev));
 388
 389         DPRINTF("\n");
 390
 391         /* setup control transfers */
 392
 393         cd = usbd_get_config_descriptor(uaa->device);
 394         id = usbd_get_interface_descriptor(uaa->iface);
 395         sc->sc_ctrl_iface_no = id->bInterfaceNumber;
 396         sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
 397
 398         error = usbd_transfer_setup(uaa->device,
 399             &sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
 400             ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
 401
 402         if (error) {
 403                 device_printf(dev, "allocating control USB "
 404                     "transfers failed\n");
 405                 goto detach;
 406         }
 407         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 408         if (mad == NULL) {
 409                 goto detach;
 410         }
 411         if (mad->bFunctionLength < sizeof(*mad)) {
 412                 device_printf(dev, "invalid MAD descriptor\n");
 413                 goto detach;
 414         }
 415         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 416             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 417                 sc->sc_nobulk = 1;
 418         } else {
 419                 sc->sc_nobulk = 0;
 420                 if (ufoma_modem_setup(dev, sc, uaa)) {
 421                         goto detach;
 422                 }
 423         }
 424
 425         elements = (mad->bFunctionLength - sizeof(*mad) + 1);
 426
 427         /* initialize mode variables */
 428
 429         sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
 430
 431         if (sc->sc_modetable == NULL) {
 432                 goto detach;
 433         }
 434         sc->sc_modetable[0] = (elements + 1);
 435         bcopy(mad->bMode, &sc->sc_modetable[1], elements);
 436
 437         sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
 438         sc->sc_modetoactivate = mad->bMode[0];
 439
 440         /* clear stall at first run, if any */
 441         mtx_lock(&sc->sc_mtx);
 442         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
 443         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
 444         mtx_unlock(&sc->sc_mtx);
 445
 446         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 447             &ufoma_callback, &sc->sc_mtx);
 448         if (error) {
 449                 DPRINTF("ucom_attach failed\n");
 450                 goto detach;
 451         }
 452         /*Sysctls*/
 453         sctx = device_get_sysctl_ctx(dev);
 454         soid = device_get_sysctl_tree(dev);
 455
 456         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
 457                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
 458                         "A", "Supporting port role");
 459
 460         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
 461                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
 462                         "A", "Current port role");
 463
 464         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
 465                         CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
 466                         "A", "Mode to transit when port is opened");
 467         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
 468                         CTLFLAG_RD, &(sc->sc_ucom.sc_unit), 0,
 469                         "Unit number as USB serial");
 470
 471         return (0);                     /* success */
 472
 473 detach:
 474         ufoma_detach(dev);
 475         return (ENXIO);                 /* failure */
 476 }
 477
 478 static int
 479 ufoma_detach(device_t dev)
 480 {
 481         struct ufoma_softc *sc = device_get_softc(dev);
 482
 483         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1);
 484         usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
 485         usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
 486
 487         if (sc->sc_modetable) {
 488                 free(sc->sc_modetable, M_USBDEV);
 489         }
 490         mtx_destroy(&sc->sc_mtx);
 491         cv_destroy(&sc->sc_cv);
 492
 493         return (0);
 494 }
 495
 496 static void *
 497 ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
 498     uint8_t type, uint8_t subtype)
 499 {
 500         struct usb_descriptor *desc = (void *)id;
 501
 502         while ((desc = usb_desc_foreach(cd, desc))) {
 503
 504                 if (desc->bDescriptorType == UDESC_INTERFACE) {
 505                         return (NULL);
 506                 }
 507                 if ((desc->bDescriptorType == type) &&
 508                     (desc->bDescriptorSubtype == subtype)) {
 509                         break;
 510                 }
 511         }
 512         return (desc);
 513 }
 514
 515 static void
 516 ufoma_cfg_link_state(struct ufoma_softc *sc)
 517 {
 518         struct usb_device_request req;
 519         int32_t error;
 520
 521         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 522         req.bRequest = UMCPC_SET_LINK;
 523         USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
 524         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 525         USETW(req.wLength, sc->sc_modetable[0]);
 526
 527         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 528             &req, sc->sc_modetable, 0, 1000);
 529
 530         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
 531
 532         if (error) {
 533                 DPRINTF("NO response\n");
 534         }
 535 }
 536
 537 static void
 538 ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
 539 {
 540         struct usb_device_request req;
 541         int32_t error;
 542
 543         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 544         req.bRequest = UMCPC_ACTIVATE_MODE;
 545         USETW(req.wValue, state);
 546         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 547         USETW(req.wLength, 0);
 548
 549         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 550             &req, NULL, 0, 1000);
 551
 552         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
 553             (UFOMA_MAX_TIMEOUT * hz));
 554         if (error) {
 555                 DPRINTF("No response\n");
 556         }
 557 }
 558
 559 static void
 560 ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
 561 {
 562         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 563         struct usb_device_request req;
 564         struct usb_page_cache *pc0, *pc1;
 565         int len, aframes, nframes;
 566
 567         usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
 568
 569         switch (USB_GET_STATE(xfer)) {
 570         case USB_ST_TRANSFERRED:
 571 tr_transferred:
 572                 if (aframes != nframes)
 573                         goto tr_setup;
 574                 pc1 = usbd_xfer_get_frame(xfer, 1);
 575                 len = usbd_xfer_frame_len(xfer, 1);
 576                 if (len > 0)
 577                         ucom_put_data(&sc->sc_ucom, pc1, 0, len);
 578                 /* FALLTHROUGH */
 579         case USB_ST_SETUP:
 580 tr_setup:
 581                 if (sc->sc_num_msg) {
 582                         sc->sc_num_msg--;
 583
 584                         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 585                         req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
 586                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 587                         USETW(req.wValue, 0);
 588                         USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
 589
 590                         pc0 = usbd_xfer_get_frame(xfer, 0);
 591                         usbd_copy_in(pc0, 0, &req, sizeof(req));
 592
 593                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 594                         usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
 595                         usbd_xfer_set_frames(xfer, 2);
 596                         usbd_transfer_submit(xfer);
 597                 }
 598                 return;
 599
 600         default:                        /* Error */
 601                 DPRINTF("error = %s\n",
 602                     usbd_errstr(error));
 603
 604                 if (error == USB_ERR_CANCELLED) {
 605                         return;
 606                 } else {
 607                         goto tr_setup;
 608                 }
 609
 610                 goto tr_transferred;
 611         }
 612 }
 613
 614 static void
 615 ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
 616 {
 617         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 618         struct usb_device_request req;
 619         struct usb_page_cache *pc;
 620         uint32_t actlen;
 621
 622         switch (USB_GET_STATE(xfer)) {
 623         case USB_ST_TRANSFERRED:
 624 tr_transferred:
 625         case USB_ST_SETUP:
 626 tr_setup:
 627                 pc = usbd_xfer_get_frame(xfer, 1);
 628                 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
 629
 630                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 631                         req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
 632                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 633                         USETW(req.wValue, 0);
 634                         USETW(req.wLength, 1);
 635
 636                         pc = usbd_xfer_get_frame(xfer, 0);
 637                         usbd_copy_in(pc, 0, &req, sizeof(req));
 638
 639                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 640                         usbd_xfer_set_frame_len(xfer, 1, 1);
 641                         usbd_xfer_set_frames(xfer, 2);
 642
 643                         usbd_transfer_submit(xfer);
 644                 }
 645                 return;
 646
 647         default:                        /* Error */
 648                 DPRINTF("error = %s\n", usbd_errstr(error));
 649
 650                 if (error == USB_ERR_CANCELLED) {
 651                         return;
 652                 } else {
 653                         goto tr_setup;
 654                 }
 655
 656                 goto tr_transferred;
 657         }
 658 }
 659
 660 static void
 661 ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 662 {
 663         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 664         struct usb_cdc_notification pkt;
 665         struct usb_page_cache *pc;
 666         uint16_t wLen;
 667         uint16_t temp;
 668         uint8_t mstatus;
 669         int actlen;
 670
 671         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 672
 673         switch (USB_GET_STATE(xfer)) {
 674         case USB_ST_TRANSFERRED:
 675                 if (actlen < 8) {
 676                         DPRINTF("too short message\n");
 677                         goto tr_setup;
 678                 }
 679                 if (actlen > sizeof(pkt)) {
 680                         DPRINTF("truncating message\n");
 681                         actlen = sizeof(pkt);
 682                 }
 683                 pc = usbd_xfer_get_frame(xfer, 0);
 684                 usbd_copy_out(pc, 0, &pkt, actlen);
 685
 686                 actlen -= 8;
 687
 688                 wLen = UGETW(pkt.wLength);
 689                 if (actlen > wLen) {
 690                         actlen = wLen;
 691                 }
 692                 if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
 693                     (pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
 694                         temp = UGETW(pkt.wValue);
 695                         sc->sc_currentmode = (temp >> 8);
 696                         if (!(temp & 0xff)) {
 697                                 DPRINTF("Mode change failed!\n");
 698                         }
 699                         cv_signal(&sc->sc_cv);
 700                 }
 701                 if (pkt.bmRequestType != UCDC_NOTIFICATION) {
 702                         goto tr_setup;
 703                 }
 704                 switch (pkt.bNotification) {
 705                 case UCDC_N_RESPONSE_AVAILABLE:
 706                         if (!(sc->sc_nobulk)) {
 707                                 DPRINTF("Wrong serial state!\n");
 708                                 break;
 709                         }
 710                         if (sc->sc_num_msg != 0xFF) {
 711                                 sc->sc_num_msg++;
 712                         }
 713                         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
 714                         break;
 715
 716                 case UCDC_N_SERIAL_STATE:
 717                         if (sc->sc_nobulk) {
 718                                 DPRINTF("Wrong serial state!\n");
 719                                 break;
 720                         }
 721                         /*
 722                          * Set the serial state in ucom driver based on
 723                          * the bits from the notify message
 724                          */
 725                         if (actlen < 2) {
 726                                 DPRINTF("invalid notification "
 727                                     "length, %d bytes!\n", actlen);
 728                                 break;
 729                         }
 730                         DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
 731                             pkt.data[0], pkt.data[1]);
 732
 733                         /* currently, lsr is always zero. */
 734                         sc->sc_lsr = 0;
 735                         sc->sc_msr = 0;
 736
 737                         mstatus = pkt.data[0];
 738
 739                         if (mstatus & UCDC_N_SERIAL_RI) {
 740                                 sc->sc_msr |= SER_RI;
 741                         }
 742                         if (mstatus & UCDC_N_SERIAL_DSR) {
 743                                 sc->sc_msr |= SER_DSR;
 744                         }
 745                         if (mstatus & UCDC_N_SERIAL_DCD) {
 746                                 sc->sc_msr |= SER_DCD;
 747                         }
 748                         ucom_status_change(&sc->sc_ucom);
 749                         break;
 750
 751                 default:
 752                         break;
 753                 }
 754
 755         case USB_ST_SETUP:
 756 tr_setup:
 757                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 758                 usbd_transfer_submit(xfer);
 759                 return;
 760
 761         default:                        /* Error */
 762                 if (error != USB_ERR_CANCELLED) {
 763                         /* try to clear stall first */
 764                         usbd_xfer_set_stall(xfer);
 765                         goto tr_setup;
 766                 }
 767                 return;
 768         }
 769 }
 770
 771 static void
 772 ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 773 {
 774         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 775         struct usb_page_cache *pc;
 776         uint32_t actlen;
 777
 778         switch (USB_GET_STATE(xfer)) {
 779         case USB_ST_SETUP:
 780         case USB_ST_TRANSFERRED:
 781 tr_setup:
 782                 pc = usbd_xfer_get_frame(xfer, 0);
 783                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
 784                     UFOMA_BULK_BUF_SIZE, &actlen)) {
 785                         usbd_xfer_set_frame_len(xfer, 0, actlen);
 786                         usbd_transfer_submit(xfer);
 787                 }
 788                 return;
 789
 790         default:                        /* Error */
 791                 if (error != USB_ERR_CANCELLED) {
 792                         /* try to clear stall first */
 793                         usbd_xfer_set_stall(xfer);
 794                         goto tr_setup;
 795                 }
 796                 return;
 797         }
 798 }
 799
 800 static void
 801 ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 802 {
 803         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 804         struct usb_page_cache *pc;
 805         int actlen;
 806
 807         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 808
 809         switch (USB_GET_STATE(xfer)) {
 810         case USB_ST_TRANSFERRED:
 811                 pc = usbd_xfer_get_frame(xfer, 0);
 812                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 813
 814         case USB_ST_SETUP:
 815 tr_setup:
 816                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 817                 usbd_transfer_submit(xfer);
 818                 return;
 819
 820         default:                        /* Error */
 821                 if (error != USB_ERR_CANCELLED) {
 822                         /* try to clear stall first */
 823                         usbd_xfer_set_stall(xfer);
 824                         goto tr_setup;
 825                 }
 826                 return;
 827         }
 828 }
 829
 830 static void
 831 ufoma_cfg_open(struct ucom_softc *ucom)
 832 {
 833         struct ufoma_softc *sc = ucom->sc_parent;
 834
 835         /* empty input queue */
 836
 837         if (sc->sc_num_msg != 0xFF) {
 838                 sc->sc_num_msg++;
 839         }
 840         if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
 841                 ufoma_cfg_link_state(sc);
 842         }
 843         if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
 844                 ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
 845         }
 846 }
 847
 848 static void
 849 ufoma_cfg_close(struct ucom_softc *ucom)
 850 {
 851         struct ufoma_softc *sc = ucom->sc_parent;
 852
 853         ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
 854 }
 855
 856 static void
 857 ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
 858 {
 859         struct ufoma_softc *sc = ucom->sc_parent;
 860         struct usb_device_request req;
 861         uint16_t wValue;
 862
 863         if (sc->sc_nobulk ||
 864             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 865                 return;
 866         }
 867         if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
 868                 return;
 869         }
 870         wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
 871
 872         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 873         req.bRequest = UCDC_SEND_BREAK;
 874         USETW(req.wValue, wValue);
 875         req.wIndex[0] = sc->sc_ctrl_iface_no;
 876         req.wIndex[1] = 0;
 877         USETW(req.wLength, 0);
 878
 879         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 880             &req, NULL, 0, 1000);
 881 }
 882
 883 static void
 884 ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
 885 {
 886         struct ufoma_softc *sc = ucom->sc_parent;
 887
 888         *lsr = sc->sc_lsr;
 889         *msr = sc->sc_msr;
 890 }
 891
 892 static void
 893 ufoma_cfg_set_line_state(struct ufoma_softc *sc)
 894 {
 895         struct usb_device_request req;
 896
 897         /* Don't send line state emulation request for OBEX port */
 898         if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
 899                 return;
 900         }
 901         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 902         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 903         USETW(req.wValue, sc->sc_line);
 904         req.wIndex[0] = sc->sc_ctrl_iface_no;
 905         req.wIndex[1] = 0;
 906         USETW(req.wLength, 0);
 907
 908         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 909             &req, NULL, 0, 1000);
 910 }
 911
 912 static void
 913 ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
 914 {
 915         struct ufoma_softc *sc = ucom->sc_parent;
 916
 917         if (sc->sc_nobulk) {
 918                 return;
 919         }
 920         if (onoff)
 921                 sc->sc_line |= UCDC_LINE_DTR;
 922         else
 923                 sc->sc_line &= ~UCDC_LINE_DTR;
 924
 925         ufoma_cfg_set_line_state(sc);
 926 }
 927
 928 static void
 929 ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
 930 {
 931         struct ufoma_softc *sc = ucom->sc_parent;
 932
 933         if (sc->sc_nobulk) {
 934                 return;
 935         }
 936         if (onoff)
 937                 sc->sc_line |= UCDC_LINE_RTS;
 938         else
 939                 sc->sc_line &= ~UCDC_LINE_RTS;
 940
 941         ufoma_cfg_set_line_state(sc);
 942 }
 943
 944 static int
 945 ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
 946 {
 947         return (0);                     /* we accept anything */
 948 }
 949
 950 static void
 951 ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
 952 {
 953         struct ufoma_softc *sc = ucom->sc_parent;
 954         struct usb_device_request req;
 955         struct usb_cdc_line_state ls;
 956
 957         if (sc->sc_nobulk ||
 958             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 959                 return;
 960         }
 961         DPRINTF("\n");
 962
 963         bzero(&ls, sizeof(ls));
 964
 965         USETDW(ls.dwDTERate, t->c_ospeed);
 966
 967         if (t->c_cflag & CSTOPB) {
 968                 ls.bCharFormat = UCDC_STOP_BIT_2;
 969         } else {
 970                 ls.bCharFormat = UCDC_STOP_BIT_1;
 971         }
 972
 973         if (t->c_cflag & PARENB) {
 974                 if (t->c_cflag & PARODD) {
 975                         ls.bParityType = UCDC_PARITY_ODD;
 976                 } else {
 977                         ls.bParityType = UCDC_PARITY_EVEN;
 978                 }
 979         } else {
 980                 ls.bParityType = UCDC_PARITY_NONE;
 981         }
 982
 983         switch (t->c_cflag & CSIZE) {
 984         case CS5:
 985                 ls.bDataBits = 5;
 986                 break;
 987         case CS6:
 988                 ls.bDataBits = 6;
 989                 break;
 990         case CS7:
 991                 ls.bDataBits = 7;
 992                 break;
 993         case CS8:
 994                 ls.bDataBits = 8;
 995                 break;
 996         }
 997
 998         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 999         req.bRequest = UCDC_SET_LINE_CODING;
1000         USETW(req.wValue, 0);
1001         req.wIndex[0] = sc->sc_ctrl_iface_no;
1002         req.wIndex[1] = 0;
1003         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
1004
1005         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
1006             &req, &ls, 0, 1000);
1007 }
1008
1009 static int
1010 ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
1011     struct usb_attach_arg *uaa)
1012 {
1013         struct usb_config_descriptor *cd;
1014         struct usb_cdc_acm_descriptor *acm;
1015         struct usb_cdc_cm_descriptor *cmd;
1016         struct usb_interface_descriptor *id;
1017         struct usb_interface *iface;
1018         uint8_t i;
1019         int32_t error;
1020
1021         cd = usbd_get_config_descriptor(uaa->device);
1022         id = usbd_get_interface_descriptor(uaa->iface);
1023
1024         cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
1025
1026         if ((cmd == NULL) ||
1027             (cmd->bLength < sizeof(*cmd))) {
1028                 return (EINVAL);
1029         }
1030         sc->sc_cm_cap = cmd->bmCapabilities;
1031         sc->sc_data_iface_no = cmd->bDataInterface;
1032
1033         acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
1034
1035         if ((acm == NULL) ||
1036             (acm->bLength < sizeof(*acm))) {
1037                 return (EINVAL);
1038         }
1039         sc->sc_acm_cap = acm->bmCapabilities;
1040
1041         device_printf(dev, "data interface %d, has %sCM over data, "
1042             "has %sbreak\n",
1043             sc->sc_data_iface_no,
1044             sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
1045             sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
1046
1047         /* get the data interface too */
1048
1049         for (i = 0;; i++) {
1050
1051                 iface = usbd_get_iface(uaa->device, i);
1052
1053                 if (iface) {
1054
1055                         id = usbd_get_interface_descriptor(iface);
1056
1057                         if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
1058                                 sc->sc_data_iface_index = i;
1059                                 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
1060                                 break;
1061                         }
1062                 } else {
1063                         device_printf(dev, "no data interface\n");
1064                         return (EINVAL);
1065                 }
1066         }
1067
1068         error = usbd_transfer_setup(uaa->device,
1069             &sc->sc_data_iface_index, sc->sc_bulk_xfer,
1070             ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
1071
1072         if (error) {
1073                 device_printf(dev, "allocating BULK USB "
1074                     "transfers failed\n");
1075                 return (EINVAL);
1076         }
1077         return (0);
1078 }
1079
1080 static void
1081 ufoma_start_read(struct ucom_softc *ucom)
1082 {
1083         struct ufoma_softc *sc = ucom->sc_parent;
1084
1085         /* start interrupt transfer */
1086         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1087
1088         /* start data transfer */
1089         if (sc->sc_nobulk) {
1090                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1091         } else {
1092                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1093         }
1094 }
1095
1096 static void
1097 ufoma_stop_read(struct ucom_softc *ucom)
1098 {
1099         struct ufoma_softc *sc = ucom->sc_parent;
1100
1101         /* stop interrupt transfer */
1102         usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1103
1104         /* stop data transfer */
1105         if (sc->sc_nobulk) {
1106                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1107         } else {
1108                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1109         }
1110 }
1111
1112 static void
1113 ufoma_start_write(struct ucom_softc *ucom)
1114 {
1115         struct ufoma_softc *sc = ucom->sc_parent;
1116
1117         if (sc->sc_nobulk) {
1118                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1119         } else {
1120                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1121         }
1122 }
1123
1124 static void
1125 ufoma_stop_write(struct ucom_softc *ucom)
1126 {
1127         struct ufoma_softc *sc = ucom->sc_parent;
1128
1129         if (sc->sc_nobulk) {
1130                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1131         } else {
1132                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1133         }
1134 }
1135
1136 static struct umcpc_modetostr_tab{
1137         int mode;
1138         char *str;
1139 }umcpc_modetostr_tab[]={
1140         {UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
1141         {UMCPC_ACM_MODE_MODEM, "modem"},
1142         {UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
1143         {UMCPC_ACM_MODE_OBEX, "obex"},
1144         {UMCPC_ACM_MODE_VENDOR1, "vendor1"},
1145         {UMCPC_ACM_MODE_VENDOR2, "vendor2"},
1146         {UMCPC_ACM_MODE_UNLINKED, "unlinked"},
1147         {0, NULL}
1148 };
1149
1150 static char *ufoma_mode_to_str(int mode)
1151 {
1152         int i;
1153         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1154                 if(umcpc_modetostr_tab[i].mode == mode){
1155                         return umcpc_modetostr_tab[i].str;
1156                 }
1157         }
1158         return NULL;
1159 }
1160
1161 static int ufoma_str_to_mode(char *str)
1162 {
1163         int i;
1164         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1165                 if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
1166                         return umcpc_modetostr_tab[i].mode;
1167                 }
1168         }
1169         return -1;
1170 }
1171
1172 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
1173 {
1174         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1175         struct sbuf sb;
1176         int i;
1177         char *mode;
1178
1179         sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
1180         for(i = 1; i < sc->sc_modetable[0]; i++){
1181                 mode = ufoma_mode_to_str(sc->sc_modetable[i]);
1182                 if(mode !=NULL){
1183                         sbuf_cat(&sb, mode);
1184                 }else{
1185                         sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
1186                 }
1187                 if(i < (sc->sc_modetable[0]-1))
1188                         sbuf_cat(&sb, ",");
1189         }
1190         sbuf_trim(&sb);
1191         sbuf_finish(&sb);
1192         sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
1193         sbuf_delete(&sb);
1194
1195         return 0;
1196 }
1197 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
1198 {
1199         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1200         char *mode;
1201         char subbuf[]="(XXX)";
1202         mode = ufoma_mode_to_str(sc->sc_currentmode);
1203         if(!mode){
1204                 mode = subbuf;
1205                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
1206         }
1207         sysctl_handle_string(oidp, mode, strlen(mode), req);
1208
1209         return 0;
1210
1211 }
1212 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
1213 {
1214         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1215         char *mode;
1216         char subbuf[40];
1217         int newmode;
1218         int error;
1219         int i;
1220
1221         mode = ufoma_mode_to_str(sc->sc_modetoactivate);
1222         if(mode){
1223                 strncpy(subbuf, mode, sizeof(subbuf));
1224         }else{
1225                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
1226         }
1227         error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
1228         if(error != 0 || req->newptr == NULL){
1229                 return error;
1230         }
1231
1232         if((newmode = ufoma_str_to_mode(subbuf)) == -1){
1233                 return EINVAL;
1234         }
1235
1236         for(i = 1 ; i < sc->sc_modetable[0] ; i++){
1237                 if(sc->sc_modetable[i] == newmode){
1238                         sc->sc_modetoactivate = newmode;
1239                         return 0;
1240                 }
1241         }
1242
1243         return EINVAL;
1244 }
1245
1246 static void
1247 ufoma_poll(struct ucom_softc *ucom)
1248 {
1249         struct ufoma_softc *sc = ucom->sc_parent;
1250         usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
1251         usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
1252 }