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/module.h>
  94 #include <sys/lock.h>
  95 #include <sys/mutex.h>
  96 #include <sys/condvar.h>
  97 #include <sys/sysctl.h>
  98 #include <sys/sx.h>
  99 #include <sys/unistd.h>
 100 #include <sys/callout.h>
 101 #include <sys/malloc.h>
 102 #include <sys/priv.h>
 103 #include <sys/sbuf.h>
 104
 105 #include <dev/usb/usb.h>
 106 #include <dev/usb/usbdi.h>
 107 #include <dev/usb/usbdi_util.h>
 108 #include <dev/usb/usb_cdc.h>
 109 #include "usbdevs.h"
 110
 111 #define USB_DEBUG_VAR usb_debug
 112 #include <dev/usb/usb_debug.h>
 113 #include <dev/usb/usb_process.h>
 114
 115 #include <dev/usb/serial/usb_serial.h>
 116
 117 typedef struct ufoma_mobile_acm_descriptor {
 118         uint8_t bFunctionLength;
 119         uint8_t bDescriptorType;
 120         uint8_t bDescriptorSubtype;
 121         uint8_t bType;
 122         uint8_t bMode[1];
 123 } __packed usb_mcpc_acm_descriptor;
 124
 125 #define UISUBCLASS_MCPC 0x88
 126
 127 #define UDESC_VS_INTERFACE 0x44
 128 #define UDESCSUB_MCPC_ACM  0x11
 129
 130 #define UMCPC_ACM_TYPE_AB1 0x1
 131 #define UMCPC_ACM_TYPE_AB2 0x2
 132 #define UMCPC_ACM_TYPE_AB5 0x5
 133 #define UMCPC_ACM_TYPE_AB6 0x6
 134
 135 #define UMCPC_ACM_MODE_DEACTIVATED 0x0
 136 #define UMCPC_ACM_MODE_MODEM 0x1
 137 #define UMCPC_ACM_MODE_ATCOMMAND 0x2
 138 #define UMCPC_ACM_MODE_OBEX 0x60
 139 #define UMCPC_ACM_MODE_VENDOR1 0xc0
 140 #define UMCPC_ACM_MODE_VENDOR2 0xfe
 141 #define UMCPC_ACM_MODE_UNLINKED 0xff
 142
 143 #define UMCPC_CM_MOBILE_ACM 0x0
 144
 145 #define UMCPC_ACTIVATE_MODE 0x60
 146 #define UMCPC_GET_MODETABLE 0x61
 147 #define UMCPC_SET_LINK 0x62
 148 #define UMCPC_CLEAR_LINK 0x63
 149
 150 #define UMCPC_REQUEST_ACKNOWLEDGE 0x31
 151
 152 #define UFOMA_MAX_TIMEOUT 15            /* standard says 10 seconds */
 153 #define UFOMA_CMD_BUF_SIZE 64           /* bytes */
 154
 155 #define UFOMA_BULK_BUF_SIZE 1024        /* bytes */
 156
 157 enum {
 158         UFOMA_CTRL_ENDPT_INTR,
 159         UFOMA_CTRL_ENDPT_READ,
 160         UFOMA_CTRL_ENDPT_WRITE,
 161         UFOMA_CTRL_ENDPT_MAX,
 162 };
 163
 164 enum {
 165         UFOMA_BULK_ENDPT_WRITE,
 166         UFOMA_BULK_ENDPT_READ,
 167         UFOMA_BULK_ENDPT_MAX,
 168 };
 169
 170 struct ufoma_softc {
 171         struct ucom_super_softc sc_super_ucom;
 172         struct ucom_softc sc_ucom;
 173         struct cv sc_cv;
 174         struct mtx sc_mtx;
 175
 176         struct usb_xfer *sc_ctrl_xfer[UFOMA_CTRL_ENDPT_MAX];
 177         struct usb_xfer *sc_bulk_xfer[UFOMA_BULK_ENDPT_MAX];
 178         uint8_t *sc_modetable;
 179         device_t sc_dev;
 180         struct usb_device *sc_udev;
 181
 182         uint32_t sc_unit;
 183
 184         uint16_t sc_line;
 185
 186         uint8_t sc_num_msg;
 187         uint8_t sc_nobulk;
 188         uint8_t sc_ctrl_iface_no;
 189         uint8_t sc_ctrl_iface_index;
 190         uint8_t sc_data_iface_no;
 191         uint8_t sc_data_iface_index;
 192         uint8_t sc_cm_cap;
 193         uint8_t sc_acm_cap;
 194         uint8_t sc_lsr;
 195         uint8_t sc_msr;
 196         uint8_t sc_modetoactivate;
 197         uint8_t sc_currentmode;
 198 };
 199
 200 /* prototypes */
 201
 202 static device_probe_t ufoma_probe;
 203 static device_attach_t ufoma_attach;
 204 static device_detach_t ufoma_detach;
 205 static void ufoma_free_softc(struct ufoma_softc *);
 206
 207 static usb_callback_t ufoma_ctrl_read_callback;
 208 static usb_callback_t ufoma_ctrl_write_callback;
 209 static usb_callback_t ufoma_intr_callback;
 210 static usb_callback_t ufoma_bulk_write_callback;
 211 static usb_callback_t ufoma_bulk_read_callback;
 212
 213 static void     *ufoma_get_intconf(struct usb_config_descriptor *,
 214                     struct usb_interface_descriptor *, uint8_t, uint8_t);
 215 static void     ufoma_cfg_link_state(struct ufoma_softc *);
 216 static void     ufoma_cfg_activate_state(struct ufoma_softc *, uint16_t);
 217 static void     ufoma_free(struct ucom_softc *);
 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         .ucom_free = &ufoma_free,
 309 };
 310
 311 static device_method_t ufoma_methods[] = {
 312         /* Device methods */
 313         DEVMETHOD(device_probe, ufoma_probe),
 314         DEVMETHOD(device_attach, ufoma_attach),
 315         DEVMETHOD(device_detach, ufoma_detach),
 316         DEVMETHOD_END
 317 };
 318
 319 static devclass_t ufoma_devclass;
 320
 321 static driver_t ufoma_driver = {
 322         .name = "ufoma",
 323         .methods = ufoma_methods,
 324         .size = sizeof(struct ufoma_softc),
 325 };
 326
 327 DRIVER_MODULE(ufoma, uhub, ufoma_driver, ufoma_devclass, NULL, 0);
 328 MODULE_DEPEND(ufoma, ucom, 1, 1, 1);
 329 MODULE_DEPEND(ufoma, usb, 1, 1, 1);
 330 MODULE_VERSION(ufoma, 1);
 331
 332 static const STRUCT_USB_HOST_ID ufoma_devs[] = {
 333         {USB_IFACE_CLASS(UICLASS_CDC),
 334          USB_IFACE_SUBCLASS(UISUBCLASS_MCPC),},
 335 };
 336
 337 static int
 338 ufoma_probe(device_t dev)
 339 {
 340         struct usb_attach_arg *uaa = device_get_ivars(dev);
 341         struct usb_interface_descriptor *id;
 342         struct usb_config_descriptor *cd;
 343         usb_mcpc_acm_descriptor *mad;
 344         int error;
 345
 346         if (uaa->usb_mode != USB_MODE_HOST)
 347                 return (ENXIO);
 348
 349         error = usbd_lookup_id_by_uaa(ufoma_devs, sizeof(ufoma_devs), uaa);
 350         if (error)
 351                 return (error);
 352
 353         id = usbd_get_interface_descriptor(uaa->iface);
 354         cd = usbd_get_config_descriptor(uaa->device);
 355
 356         if (id == NULL || cd == NULL)
 357                 return (ENXIO);
 358
 359         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 360         if (mad == NULL)
 361                 return (ENXIO);
 362
 363 #ifndef UFOMA_HANDSFREE
 364         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 365             (mad->bType == UMCPC_ACM_TYPE_AB6))
 366                 return (ENXIO);
 367 #endif
 368         return (BUS_PROBE_GENERIC);
 369 }
 370
 371 static int
 372 ufoma_attach(device_t dev)
 373 {
 374         struct usb_attach_arg *uaa = device_get_ivars(dev);
 375         struct ufoma_softc *sc = device_get_softc(dev);
 376         struct usb_config_descriptor *cd;
 377         struct usb_interface_descriptor *id;
 378         struct sysctl_ctx_list *sctx;
 379         struct sysctl_oid *soid;
 380
 381         usb_mcpc_acm_descriptor *mad;
 382         uint8_t elements;
 383         int32_t error;
 384
 385         sc->sc_udev = uaa->device;
 386         sc->sc_dev = dev;
 387         sc->sc_unit = device_get_unit(dev);
 388
 389         mtx_init(&sc->sc_mtx, "ufoma", NULL, MTX_DEF);
 390         ucom_ref(&sc->sc_super_ucom);
 391         cv_init(&sc->sc_cv, "CWAIT");
 392
 393         device_set_usb_desc(dev);
 394
 395         DPRINTF("\n");
 396
 397         /* setup control transfers */
 398
 399         cd = usbd_get_config_descriptor(uaa->device);
 400         id = usbd_get_interface_descriptor(uaa->iface);
 401         sc->sc_ctrl_iface_no = id->bInterfaceNumber;
 402         sc->sc_ctrl_iface_index = uaa->info.bIfaceIndex;
 403
 404         error = usbd_transfer_setup(uaa->device,
 405             &sc->sc_ctrl_iface_index, sc->sc_ctrl_xfer,
 406             ufoma_ctrl_config, UFOMA_CTRL_ENDPT_MAX, sc, &sc->sc_mtx);
 407
 408         if (error) {
 409                 device_printf(dev, "allocating control USB "
 410                     "transfers failed\n");
 411                 goto detach;
 412         }
 413         mad = ufoma_get_intconf(cd, id, UDESC_VS_INTERFACE, UDESCSUB_MCPC_ACM);
 414         if (mad == NULL) {
 415                 goto detach;
 416         }
 417         if (mad->bFunctionLength < sizeof(*mad)) {
 418                 device_printf(dev, "invalid MAD descriptor\n");
 419                 goto detach;
 420         }
 421         if ((mad->bType == UMCPC_ACM_TYPE_AB5) ||
 422             (mad->bType == UMCPC_ACM_TYPE_AB6)) {
 423                 sc->sc_nobulk = 1;
 424         } else {
 425                 sc->sc_nobulk = 0;
 426                 if (ufoma_modem_setup(dev, sc, uaa)) {
 427                         goto detach;
 428                 }
 429         }
 430
 431         elements = (mad->bFunctionLength - sizeof(*mad) + 1);
 432
 433         /* initialize mode variables */
 434
 435         sc->sc_modetable = malloc(elements + 1, M_USBDEV, M_WAITOK);
 436
 437         if (sc->sc_modetable == NULL) {
 438                 goto detach;
 439         }
 440         sc->sc_modetable[0] = (elements + 1);
 441         memcpy(&sc->sc_modetable[1], mad->bMode, elements);
 442
 443         sc->sc_currentmode = UMCPC_ACM_MODE_UNLINKED;
 444         sc->sc_modetoactivate = mad->bMode[0];
 445
 446         /* clear stall at first run, if any */
 447         mtx_lock(&sc->sc_mtx);
 448         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
 449         usbd_xfer_set_stall(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
 450         mtx_unlock(&sc->sc_mtx);
 451
 452         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
 453             &ufoma_callback, &sc->sc_mtx);
 454         if (error) {
 455                 DPRINTF("ucom_attach failed\n");
 456                 goto detach;
 457         }
 458         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
 459
 460         /*Sysctls*/
 461         sctx = device_get_sysctl_ctx(dev);
 462         soid = device_get_sysctl_tree(dev);
 463
 464         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "supportmode",
 465                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_support,
 466                         "A", "Supporting port role");
 467
 468         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "currentmode",
 469                         CTLFLAG_RD|CTLTYPE_STRING, sc, 0, ufoma_sysctl_current,
 470                         "A", "Current port role");
 471
 472         SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "openmode",
 473                         CTLFLAG_RW|CTLTYPE_STRING, sc, 0, ufoma_sysctl_open,
 474                         "A", "Mode to transit when port is opened");
 475         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "comunit",
 476                         CTLFLAG_RD, &(sc->sc_super_ucom.sc_unit), 0,
 477                         "Unit number as USB serial");
 478
 479         return (0);                     /* success */
 480
 481 detach:
 482         ufoma_detach(dev);
 483         return (ENXIO);                 /* failure */
 484 }
 485
 486 static int
 487 ufoma_detach(device_t dev)
 488 {
 489         struct ufoma_softc *sc = device_get_softc(dev);
 490
 491         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
 492         usbd_transfer_unsetup(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
 493         usbd_transfer_unsetup(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
 494
 495         if (sc->sc_modetable) {
 496                 free(sc->sc_modetable, M_USBDEV);
 497         }
 498         cv_destroy(&sc->sc_cv);
 499
 500         device_claim_softc(dev);
 501
 502         ufoma_free_softc(sc);
 503
 504         return (0);
 505 }
 506
 507 UCOM_UNLOAD_DRAIN(ufoma);
 508
 509 static void
 510 ufoma_free_softc(struct ufoma_softc *sc)
 511 {
 512         if (ucom_unref(&sc->sc_super_ucom)) {
 513                 mtx_destroy(&sc->sc_mtx);
 514                 device_free_softc(sc);
 515         }
 516 }
 517
 518 static void
 519 ufoma_free(struct ucom_softc *ucom)
 520 {
 521         ufoma_free_softc(ucom->sc_parent);
 522 }
 523
 524 static void *
 525 ufoma_get_intconf(struct usb_config_descriptor *cd, struct usb_interface_descriptor *id,
 526     uint8_t type, uint8_t subtype)
 527 {
 528         struct usb_descriptor *desc = (void *)id;
 529
 530         while ((desc = usb_desc_foreach(cd, desc))) {
 531
 532                 if (desc->bDescriptorType == UDESC_INTERFACE) {
 533                         return (NULL);
 534                 }
 535                 if ((desc->bDescriptorType == type) &&
 536                     (desc->bDescriptorSubtype == subtype)) {
 537                         break;
 538                 }
 539         }
 540         return (desc);
 541 }
 542
 543 static void
 544 ufoma_cfg_link_state(struct ufoma_softc *sc)
 545 {
 546         struct usb_device_request req;
 547         int32_t error;
 548
 549         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 550         req.bRequest = UMCPC_SET_LINK;
 551         USETW(req.wValue, UMCPC_CM_MOBILE_ACM);
 552         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 553         USETW(req.wLength, sc->sc_modetable[0]);
 554
 555         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 556             &req, sc->sc_modetable, 0, 1000);
 557
 558         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, hz);
 559
 560         if (error) {
 561                 DPRINTF("NO response\n");
 562         }
 563 }
 564
 565 static void
 566 ufoma_cfg_activate_state(struct ufoma_softc *sc, uint16_t state)
 567 {
 568         struct usb_device_request req;
 569         int32_t error;
 570
 571         req.bmRequestType = UT_WRITE_VENDOR_INTERFACE;
 572         req.bRequest = UMCPC_ACTIVATE_MODE;
 573         USETW(req.wValue, state);
 574         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 575         USETW(req.wLength, 0);
 576
 577         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 578             &req, NULL, 0, 1000);
 579
 580         error = cv_timedwait(&sc->sc_cv, &sc->sc_mtx,
 581             (UFOMA_MAX_TIMEOUT * hz));
 582         if (error) {
 583                 DPRINTF("No response\n");
 584         }
 585 }
 586
 587 static void
 588 ufoma_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
 589 {
 590         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 591         struct usb_device_request req;
 592         struct usb_page_cache *pc0, *pc1;
 593         int len, aframes, nframes;
 594
 595         usbd_xfer_status(xfer, NULL, NULL, &aframes, &nframes);
 596
 597         switch (USB_GET_STATE(xfer)) {
 598         case USB_ST_TRANSFERRED:
 599 tr_transferred:
 600                 if (aframes != nframes)
 601                         goto tr_setup;
 602                 pc1 = usbd_xfer_get_frame(xfer, 1);
 603                 len = usbd_xfer_frame_len(xfer, 1);
 604                 if (len > 0)
 605                         ucom_put_data(&sc->sc_ucom, pc1, 0, len);
 606                 /* FALLTHROUGH */
 607         case USB_ST_SETUP:
 608 tr_setup:
 609                 if (sc->sc_num_msg) {
 610                         sc->sc_num_msg--;
 611
 612                         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 613                         req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
 614                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 615                         USETW(req.wValue, 0);
 616                         USETW(req.wLength, UFOMA_CMD_BUF_SIZE);
 617
 618                         pc0 = usbd_xfer_get_frame(xfer, 0);
 619                         usbd_copy_in(pc0, 0, &req, sizeof(req));
 620
 621                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 622                         usbd_xfer_set_frame_len(xfer, 1, UFOMA_CMD_BUF_SIZE);
 623                         usbd_xfer_set_frames(xfer, 2);
 624                         usbd_transfer_submit(xfer);
 625                 }
 626                 return;
 627
 628         default:                        /* Error */
 629                 DPRINTF("error = %s\n",
 630                     usbd_errstr(error));
 631
 632                 if (error == USB_ERR_CANCELLED) {
 633                         return;
 634                 }
 635                 goto tr_transferred;
 636         }
 637 }
 638
 639 static void
 640 ufoma_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
 641 {
 642         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 643         struct usb_device_request req;
 644         struct usb_page_cache *pc;
 645         uint32_t actlen;
 646
 647         switch (USB_GET_STATE(xfer)) {
 648         case USB_ST_TRANSFERRED:
 649 tr_transferred:
 650         case USB_ST_SETUP:
 651                 pc = usbd_xfer_get_frame(xfer, 1);
 652                 if (ucom_get_data(&sc->sc_ucom, pc, 0, 1, &actlen)) {
 653
 654                         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 655                         req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
 656                         USETW(req.wIndex, sc->sc_ctrl_iface_no);
 657                         USETW(req.wValue, 0);
 658                         USETW(req.wLength, 1);
 659
 660                         pc = usbd_xfer_get_frame(xfer, 0);
 661                         usbd_copy_in(pc, 0, &req, sizeof(req));
 662
 663                         usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
 664                         usbd_xfer_set_frame_len(xfer, 1, 1);
 665                         usbd_xfer_set_frames(xfer, 2);
 666
 667                         usbd_transfer_submit(xfer);
 668                 }
 669                 return;
 670
 671         default:                        /* Error */
 672                 DPRINTF("error = %s\n", usbd_errstr(error));
 673
 674                 if (error == USB_ERR_CANCELLED) {
 675                         return;
 676                 }
 677                 goto tr_transferred;
 678         }
 679 }
 680
 681 static void
 682 ufoma_intr_callback(struct usb_xfer *xfer, usb_error_t error)
 683 {
 684         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 685         struct usb_cdc_notification pkt;
 686         struct usb_page_cache *pc;
 687         uint16_t wLen;
 688         uint16_t temp;
 689         uint8_t mstatus;
 690         int actlen;
 691
 692         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 693
 694         switch (USB_GET_STATE(xfer)) {
 695         case USB_ST_TRANSFERRED:
 696                 if (actlen < 8) {
 697                         DPRINTF("too short message\n");
 698                         goto tr_setup;
 699                 }
 700                 if (actlen > (int)sizeof(pkt)) {
 701                         DPRINTF("truncating message\n");
 702                         actlen = sizeof(pkt);
 703                 }
 704                 pc = usbd_xfer_get_frame(xfer, 0);
 705                 usbd_copy_out(pc, 0, &pkt, actlen);
 706
 707                 actlen -= 8;
 708
 709                 wLen = UGETW(pkt.wLength);
 710                 if (actlen > wLen) {
 711                         actlen = wLen;
 712                 }
 713                 if ((pkt.bmRequestType == UT_READ_VENDOR_INTERFACE) &&
 714                     (pkt.bNotification == UMCPC_REQUEST_ACKNOWLEDGE)) {
 715                         temp = UGETW(pkt.wValue);
 716                         sc->sc_currentmode = (temp >> 8);
 717                         if (!(temp & 0xff)) {
 718                                 DPRINTF("Mode change failed!\n");
 719                         }
 720                         cv_signal(&sc->sc_cv);
 721                 }
 722                 if (pkt.bmRequestType != UCDC_NOTIFICATION) {
 723                         goto tr_setup;
 724                 }
 725                 switch (pkt.bNotification) {
 726                 case UCDC_N_RESPONSE_AVAILABLE:
 727                         if (!(sc->sc_nobulk)) {
 728                                 DPRINTF("Wrong serial state!\n");
 729                                 break;
 730                         }
 731                         if (sc->sc_num_msg != 0xFF) {
 732                                 sc->sc_num_msg++;
 733                         }
 734                         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
 735                         break;
 736
 737                 case UCDC_N_SERIAL_STATE:
 738                         if (sc->sc_nobulk) {
 739                                 DPRINTF("Wrong serial state!\n");
 740                                 break;
 741                         }
 742                         /*
 743                          * Set the serial state in ucom driver based on
 744                          * the bits from the notify message
 745                          */
 746                         if (actlen < 2) {
 747                                 DPRINTF("invalid notification "
 748                                     "length, %d bytes!\n", actlen);
 749                                 break;
 750                         }
 751                         DPRINTF("notify bytes = 0x%02x, 0x%02x\n",
 752                             pkt.data[0], pkt.data[1]);
 753
 754                         /* currently, lsr is always zero. */
 755                         sc->sc_lsr = 0;
 756                         sc->sc_msr = 0;
 757
 758                         mstatus = pkt.data[0];
 759
 760                         if (mstatus & UCDC_N_SERIAL_RI) {
 761                                 sc->sc_msr |= SER_RI;
 762                         }
 763                         if (mstatus & UCDC_N_SERIAL_DSR) {
 764                                 sc->sc_msr |= SER_DSR;
 765                         }
 766                         if (mstatus & UCDC_N_SERIAL_DCD) {
 767                                 sc->sc_msr |= SER_DCD;
 768                         }
 769                         ucom_status_change(&sc->sc_ucom);
 770                         break;
 771
 772                 default:
 773                         break;
 774                 }
 775
 776         case USB_ST_SETUP:
 777 tr_setup:
 778                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 779                 usbd_transfer_submit(xfer);
 780                 return;
 781
 782         default:                        /* Error */
 783                 if (error != USB_ERR_CANCELLED) {
 784                         /* try to clear stall first */
 785                         usbd_xfer_set_stall(xfer);
 786                         goto tr_setup;
 787                 }
 788                 return;
 789         }
 790 }
 791
 792 static void
 793 ufoma_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 794 {
 795         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 796         struct usb_page_cache *pc;
 797         uint32_t actlen;
 798
 799         switch (USB_GET_STATE(xfer)) {
 800         case USB_ST_SETUP:
 801         case USB_ST_TRANSFERRED:
 802 tr_setup:
 803                 pc = usbd_xfer_get_frame(xfer, 0);
 804                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
 805                     UFOMA_BULK_BUF_SIZE, &actlen)) {
 806                         usbd_xfer_set_frame_len(xfer, 0, actlen);
 807                         usbd_transfer_submit(xfer);
 808                 }
 809                 return;
 810
 811         default:                        /* Error */
 812                 if (error != USB_ERR_CANCELLED) {
 813                         /* try to clear stall first */
 814                         usbd_xfer_set_stall(xfer);
 815                         goto tr_setup;
 816                 }
 817                 return;
 818         }
 819 }
 820
 821 static void
 822 ufoma_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 823 {
 824         struct ufoma_softc *sc = usbd_xfer_softc(xfer);
 825         struct usb_page_cache *pc;
 826         int actlen;
 827
 828         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
 829
 830         switch (USB_GET_STATE(xfer)) {
 831         case USB_ST_TRANSFERRED:
 832                 pc = usbd_xfer_get_frame(xfer, 0);
 833                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
 834
 835         case USB_ST_SETUP:
 836 tr_setup:
 837                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 838                 usbd_transfer_submit(xfer);
 839                 return;
 840
 841         default:                        /* Error */
 842                 if (error != USB_ERR_CANCELLED) {
 843                         /* try to clear stall first */
 844                         usbd_xfer_set_stall(xfer);
 845                         goto tr_setup;
 846                 }
 847                 return;
 848         }
 849 }
 850
 851 static void
 852 ufoma_cfg_open(struct ucom_softc *ucom)
 853 {
 854         struct ufoma_softc *sc = ucom->sc_parent;
 855
 856         /* empty input queue */
 857
 858         if (sc->sc_num_msg != 0xFF) {
 859                 sc->sc_num_msg++;
 860         }
 861         if (sc->sc_currentmode == UMCPC_ACM_MODE_UNLINKED) {
 862                 ufoma_cfg_link_state(sc);
 863         }
 864         if (sc->sc_currentmode == UMCPC_ACM_MODE_DEACTIVATED) {
 865                 ufoma_cfg_activate_state(sc, sc->sc_modetoactivate);
 866         }
 867 }
 868
 869 static void
 870 ufoma_cfg_close(struct ucom_softc *ucom)
 871 {
 872         struct ufoma_softc *sc = ucom->sc_parent;
 873
 874         ufoma_cfg_activate_state(sc, UMCPC_ACM_MODE_DEACTIVATED);
 875 }
 876
 877 static void
 878 ufoma_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
 879 {
 880         struct ufoma_softc *sc = ucom->sc_parent;
 881         struct usb_device_request req;
 882         uint16_t wValue;
 883
 884         if (sc->sc_nobulk ||
 885             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 886                 return;
 887         }
 888         if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) {
 889                 return;
 890         }
 891         wValue = onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF;
 892
 893         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 894         req.bRequest = UCDC_SEND_BREAK;
 895         USETW(req.wValue, wValue);
 896         req.wIndex[0] = sc->sc_ctrl_iface_no;
 897         req.wIndex[1] = 0;
 898         USETW(req.wLength, 0);
 899
 900         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 901             &req, NULL, 0, 1000);
 902 }
 903
 904 static void
 905 ufoma_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
 906 {
 907         struct ufoma_softc *sc = ucom->sc_parent;
 908
 909         *lsr = sc->sc_lsr;
 910         *msr = sc->sc_msr;
 911 }
 912
 913 static void
 914 ufoma_cfg_set_line_state(struct ufoma_softc *sc)
 915 {
 916         struct usb_device_request req;
 917
 918         /* Don't send line state emulation request for OBEX port */
 919         if (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX) {
 920                 return;
 921         }
 922         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 923         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 924         USETW(req.wValue, sc->sc_line);
 925         req.wIndex[0] = sc->sc_ctrl_iface_no;
 926         req.wIndex[1] = 0;
 927         USETW(req.wLength, 0);
 928
 929         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
 930             &req, NULL, 0, 1000);
 931 }
 932
 933 static void
 934 ufoma_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
 935 {
 936         struct ufoma_softc *sc = ucom->sc_parent;
 937
 938         if (sc->sc_nobulk) {
 939                 return;
 940         }
 941         if (onoff)
 942                 sc->sc_line |= UCDC_LINE_DTR;
 943         else
 944                 sc->sc_line &= ~UCDC_LINE_DTR;
 945
 946         ufoma_cfg_set_line_state(sc);
 947 }
 948
 949 static void
 950 ufoma_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
 951 {
 952         struct ufoma_softc *sc = ucom->sc_parent;
 953
 954         if (sc->sc_nobulk) {
 955                 return;
 956         }
 957         if (onoff)
 958                 sc->sc_line |= UCDC_LINE_RTS;
 959         else
 960                 sc->sc_line &= ~UCDC_LINE_RTS;
 961
 962         ufoma_cfg_set_line_state(sc);
 963 }
 964
 965 static int
 966 ufoma_pre_param(struct ucom_softc *ucom, struct termios *t)
 967 {
 968         return (0);                     /* we accept anything */
 969 }
 970
 971 static void
 972 ufoma_cfg_param(struct ucom_softc *ucom, struct termios *t)
 973 {
 974         struct ufoma_softc *sc = ucom->sc_parent;
 975         struct usb_device_request req;
 976         struct usb_cdc_line_state ls;
 977
 978         if (sc->sc_nobulk ||
 979             (sc->sc_currentmode == UMCPC_ACM_MODE_OBEX)) {
 980                 return;
 981         }
 982         DPRINTF("\n");
 983
 984         memset(&ls, 0, sizeof(ls));
 985
 986         USETDW(ls.dwDTERate, t->c_ospeed);
 987
 988         if (t->c_cflag & CSTOPB) {
 989                 ls.bCharFormat = UCDC_STOP_BIT_2;
 990         } else {
 991                 ls.bCharFormat = UCDC_STOP_BIT_1;
 992         }
 993
 994         if (t->c_cflag & PARENB) {
 995                 if (t->c_cflag & PARODD) {
 996                         ls.bParityType = UCDC_PARITY_ODD;
 997                 } else {
 998                         ls.bParityType = UCDC_PARITY_EVEN;
 999                 }
1000         } else {
1001                 ls.bParityType = UCDC_PARITY_NONE;
1002         }
1003
1004         switch (t->c_cflag & CSIZE) {
1005         case CS5:
1006                 ls.bDataBits = 5;
1007                 break;
1008         case CS6:
1009                 ls.bDataBits = 6;
1010                 break;
1011         case CS7:
1012                 ls.bDataBits = 7;
1013                 break;
1014         case CS8:
1015                 ls.bDataBits = 8;
1016                 break;
1017         }
1018
1019         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1020         req.bRequest = UCDC_SET_LINE_CODING;
1021         USETW(req.wValue, 0);
1022         req.wIndex[0] = sc->sc_ctrl_iface_no;
1023         req.wIndex[1] = 0;
1024         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
1025
1026         ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
1027             &req, &ls, 0, 1000);
1028 }
1029
1030 static int
1031 ufoma_modem_setup(device_t dev, struct ufoma_softc *sc,
1032     struct usb_attach_arg *uaa)
1033 {
1034         struct usb_config_descriptor *cd;
1035         struct usb_cdc_acm_descriptor *acm;
1036         struct usb_cdc_cm_descriptor *cmd;
1037         struct usb_interface_descriptor *id;
1038         struct usb_interface *iface;
1039         uint8_t i;
1040         int32_t error;
1041
1042         cd = usbd_get_config_descriptor(uaa->device);
1043         id = usbd_get_interface_descriptor(uaa->iface);
1044
1045         cmd = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
1046
1047         if ((cmd == NULL) ||
1048             (cmd->bLength < sizeof(*cmd))) {
1049                 return (EINVAL);
1050         }
1051         sc->sc_cm_cap = cmd->bmCapabilities;
1052         sc->sc_data_iface_no = cmd->bDataInterface;
1053
1054         acm = ufoma_get_intconf(cd, id, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
1055
1056         if ((acm == NULL) ||
1057             (acm->bLength < sizeof(*acm))) {
1058                 return (EINVAL);
1059         }
1060         sc->sc_acm_cap = acm->bmCapabilities;
1061
1062         device_printf(dev, "data interface %d, has %sCM over data, "
1063             "has %sbreak\n",
1064             sc->sc_data_iface_no,
1065             sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
1066             sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
1067
1068         /* get the data interface too */
1069
1070         for (i = 0;; i++) {
1071
1072                 iface = usbd_get_iface(uaa->device, i);
1073
1074                 if (iface) {
1075
1076                         id = usbd_get_interface_descriptor(iface);
1077
1078                         if (id && (id->bInterfaceNumber == sc->sc_data_iface_no)) {
1079                                 sc->sc_data_iface_index = i;
1080                                 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
1081                                 break;
1082                         }
1083                 } else {
1084                         device_printf(dev, "no data interface\n");
1085                         return (EINVAL);
1086                 }
1087         }
1088
1089         error = usbd_transfer_setup(uaa->device,
1090             &sc->sc_data_iface_index, sc->sc_bulk_xfer,
1091             ufoma_bulk_config, UFOMA_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
1092
1093         if (error) {
1094                 device_printf(dev, "allocating BULK USB "
1095                     "transfers failed\n");
1096                 return (EINVAL);
1097         }
1098         return (0);
1099 }
1100
1101 static void
1102 ufoma_start_read(struct ucom_softc *ucom)
1103 {
1104         struct ufoma_softc *sc = ucom->sc_parent;
1105
1106         /* start interrupt transfer */
1107         usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1108
1109         /* start data transfer */
1110         if (sc->sc_nobulk) {
1111                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1112         } else {
1113                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1114         }
1115 }
1116
1117 static void
1118 ufoma_stop_read(struct ucom_softc *ucom)
1119 {
1120         struct ufoma_softc *sc = ucom->sc_parent;
1121
1122         /* stop interrupt transfer */
1123         usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_INTR]);
1124
1125         /* stop data transfer */
1126         if (sc->sc_nobulk) {
1127                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_READ]);
1128         } else {
1129                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_READ]);
1130         }
1131 }
1132
1133 static void
1134 ufoma_start_write(struct ucom_softc *ucom)
1135 {
1136         struct ufoma_softc *sc = ucom->sc_parent;
1137
1138         if (sc->sc_nobulk) {
1139                 usbd_transfer_start(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1140         } else {
1141                 usbd_transfer_start(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1142         }
1143 }
1144
1145 static void
1146 ufoma_stop_write(struct ucom_softc *ucom)
1147 {
1148         struct ufoma_softc *sc = ucom->sc_parent;
1149
1150         if (sc->sc_nobulk) {
1151                 usbd_transfer_stop(sc->sc_ctrl_xfer[UFOMA_CTRL_ENDPT_WRITE]);
1152         } else {
1153                 usbd_transfer_stop(sc->sc_bulk_xfer[UFOMA_BULK_ENDPT_WRITE]);
1154         }
1155 }
1156
1157 static struct umcpc_modetostr_tab{
1158         int mode;
1159         char *str;
1160 }umcpc_modetostr_tab[]={
1161         {UMCPC_ACM_MODE_DEACTIVATED, "deactivated"},
1162         {UMCPC_ACM_MODE_MODEM, "modem"},
1163         {UMCPC_ACM_MODE_ATCOMMAND, "handsfree"},
1164         {UMCPC_ACM_MODE_OBEX, "obex"},
1165         {UMCPC_ACM_MODE_VENDOR1, "vendor1"},
1166         {UMCPC_ACM_MODE_VENDOR2, "vendor2"},
1167         {UMCPC_ACM_MODE_UNLINKED, "unlinked"},
1168         {0, NULL}
1169 };
1170
1171 static char *ufoma_mode_to_str(int mode)
1172 {
1173         int i;
1174         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1175                 if(umcpc_modetostr_tab[i].mode == mode){
1176                         return umcpc_modetostr_tab[i].str;
1177                 }
1178         }
1179         return NULL;
1180 }
1181
1182 static int ufoma_str_to_mode(char *str)
1183 {
1184         int i;
1185         for(i = 0 ;umcpc_modetostr_tab[i].str != NULL; i++){
1186                 if(strcmp(str, umcpc_modetostr_tab[i].str)==0){
1187                         return umcpc_modetostr_tab[i].mode;
1188                 }
1189         }
1190         return -1;
1191 }
1192
1193 static int ufoma_sysctl_support(SYSCTL_HANDLER_ARGS)
1194 {
1195         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1196         struct sbuf sb;
1197         int i;
1198         char *mode;
1199
1200         sbuf_new(&sb, NULL, 1, SBUF_AUTOEXTEND);
1201         for(i = 1; i < sc->sc_modetable[0]; i++){
1202                 mode = ufoma_mode_to_str(sc->sc_modetable[i]);
1203                 if(mode !=NULL){
1204                         sbuf_cat(&sb, mode);
1205                 }else{
1206                         sbuf_printf(&sb, "(%02x)", sc->sc_modetable[i]);
1207                 }
1208                 if(i < (sc->sc_modetable[0]-1))
1209                         sbuf_cat(&sb, ",");
1210         }
1211         sbuf_trim(&sb);
1212         sbuf_finish(&sb);
1213         sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
1214         sbuf_delete(&sb);
1215
1216         return 0;
1217 }
1218 static int ufoma_sysctl_current(SYSCTL_HANDLER_ARGS)
1219 {
1220         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1221         char *mode;
1222         char subbuf[]="(XXX)";
1223         mode = ufoma_mode_to_str(sc->sc_currentmode);
1224         if(!mode){
1225                 mode = subbuf;
1226                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_currentmode);
1227         }
1228         sysctl_handle_string(oidp, mode, strlen(mode), req);
1229
1230         return 0;
1231
1232 }
1233 static int ufoma_sysctl_open(SYSCTL_HANDLER_ARGS)
1234 {
1235         struct ufoma_softc *sc = (struct ufoma_softc *)oidp->oid_arg1;
1236         char *mode;
1237         char subbuf[40];
1238         int newmode;
1239         int error;
1240         int i;
1241
1242         mode = ufoma_mode_to_str(sc->sc_modetoactivate);
1243         if(mode){
1244                 strncpy(subbuf, mode, sizeof(subbuf));
1245         }else{
1246                 snprintf(subbuf, sizeof(subbuf), "(%02x)", sc->sc_modetoactivate);
1247         }
1248         error = sysctl_handle_string(oidp, subbuf, sizeof(subbuf), req);
1249         if(error != 0 || req->newptr == NULL){
1250                 return error;
1251         }
1252
1253         if((newmode = ufoma_str_to_mode(subbuf)) == -1){
1254                 return EINVAL;
1255         }
1256
1257         for(i = 1 ; i < sc->sc_modetable[0] ; i++){
1258                 if(sc->sc_modetable[i] == newmode){
1259                         sc->sc_modetoactivate = newmode;
1260                         return 0;
1261                 }
1262         }
1263
1264         return EINVAL;
1265 }
1266
1267 static void
1268 ufoma_poll(struct ucom_softc *ucom)
1269 {
1270         struct ufoma_softc *sc = ucom->sc_parent;
1271         usbd_transfer_poll(sc->sc_ctrl_xfer, UFOMA_CTRL_ENDPT_MAX);
1272         usbd_transfer_poll(sc->sc_bulk_xfer, UFOMA_BULK_ENDPT_MAX);
1273 }